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aa137e4d | 1 | /* TILE-Gx-specific support for ELF. |
219d1afa | 2 | Copyright (C) 2011-2018 Free Software Foundation, Inc. |
aa137e4d NC |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
20 | ||
aa137e4d | 21 | #include "sysdep.h" |
691bf19c | 22 | #include "bfd.h" |
aa137e4d NC |
23 | #include "libbfd.h" |
24 | #include "elf-bfd.h" | |
25 | #include "elf/tilegx.h" | |
26 | #include "opcode/tilegx.h" | |
27 | #include "libiberty.h" | |
28 | #include "elfxx-tilegx.h" | |
29 | ||
30 | #define ABI_64_P(abfd) \ | |
31 | (get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64) | |
32 | ||
33 | #define TILEGX_ELF_WORD_BYTES(htab) \ | |
34 | ((htab)->bytes_per_word) | |
35 | ||
36 | /* The size of an external RELA relocation. */ | |
37 | #define TILEGX_ELF_RELA_BYTES(htab) \ | |
38 | ((htab)->bytes_per_rela) | |
39 | ||
40 | /* Both 32-bit and 64-bit tilegx encode this in an identical manner, | |
41 | so just take advantage of that. */ | |
42 | #define TILEGX_ELF_R_TYPE(r_info) \ | |
43 | ((r_info) & 0xFF) | |
44 | ||
45 | #define TILEGX_ELF_R_INFO(htab, in_rel, index, type) \ | |
46 | ((htab)->r_info (in_rel, index, type)) | |
47 | ||
48 | #define TILEGX_ELF_R_SYMNDX(htab, r_info) \ | |
49 | ((htab)->r_symndx(r_info)) | |
50 | ||
51 | #define TILEGX_ELF_DTPOFF_RELOC(htab) \ | |
52 | ((htab)->dtpoff_reloc) | |
53 | ||
54 | #define TILEGX_ELF_DTPMOD_RELOC(htab) \ | |
55 | ((htab)->dtpmod_reloc) | |
56 | ||
57 | #define TILEGX_ELF_TPOFF_RELOC(htab) \ | |
58 | ((htab)->tpoff_reloc) | |
59 | ||
60 | #define TILEGX_ELF_PUT_WORD(htab, bfd, val, ptr) \ | |
61 | ((htab)->put_word (bfd, val, ptr)) | |
62 | ||
63 | /* The name of the dynamic interpreter. This is put in the .interp | |
64 | section. */ | |
65 | ||
66 | #define ELF64_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
67 | #define ELF32_DYNAMIC_INTERPRETER "/lib32/ld.so.1" | |
68 | ||
69 | ||
70 | static reloc_howto_type tilegx_elf_howto_table [] = | |
71 | { | |
72 | /* This reloc does nothing. */ | |
73 | HOWTO (R_TILEGX_NONE, /* type */ | |
74 | 0, /* rightshift */ | |
6346d5ca AM |
75 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
76 | 0, /* bitsize */ | |
aa137e4d NC |
77 | FALSE, /* pc_relative */ |
78 | 0, /* bitpos */ | |
6346d5ca | 79 | complain_overflow_dont, /* complain_on_overflow */ |
aa137e4d NC |
80 | bfd_elf_generic_reloc, /* special_function */ |
81 | "R_TILEGX_NONE", /* name */ | |
82 | FALSE, /* partial_inplace */ | |
83 | 0, /* src_mask */ | |
84 | 0, /* dst_mask */ | |
85 | FALSE), /* pcrel_offset */ | |
86 | #ifdef BFD64 | |
87 | /* A 64 bit absolute relocation. */ | |
88 | HOWTO (R_TILEGX_64, /* type */ | |
89 | 0, /* rightshift */ | |
90 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
91 | 64, /* bitsize */ | |
92 | FALSE, /* pc_relative */ | |
93 | 0, /* bitpos */ | |
94 | complain_overflow_dont, /* complain_on_overflow */ | |
95 | bfd_elf_generic_reloc, /* special_function */ | |
96 | "R_TILEGX_64", /* name */ | |
97 | FALSE, /* partial_inplace */ | |
98 | 0, /* src_mask */ | |
99 | 0xffffffffffffffffULL, /* dst_mask */ | |
100 | FALSE), /* pcrel_offset */ | |
101 | #endif | |
102 | /* A 32 bit absolute relocation. */ | |
103 | HOWTO (R_TILEGX_32, /* type */ | |
104 | 0, /* rightshift */ | |
105 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
106 | 32, /* bitsize */ | |
107 | FALSE, /* pc_relative */ | |
108 | 0, /* bitpos */ | |
109 | complain_overflow_dont, /* complain_on_overflow */ | |
110 | bfd_elf_generic_reloc, /* special_function */ | |
111 | "R_TILEGX_32", /* name */ | |
112 | FALSE, /* partial_inplace */ | |
113 | 0, /* src_mask */ | |
114 | 0xffffffff, /* dst_mask */ | |
115 | FALSE), /* pcrel_offset */ | |
116 | ||
117 | /* A 16 bit absolute relocation. */ | |
118 | HOWTO (R_TILEGX_16, /* type */ | |
119 | 0, /* rightshift */ | |
120 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
121 | 16, /* bitsize */ | |
122 | FALSE, /* pc_relative */ | |
123 | 0, /* bitpos */ | |
124 | complain_overflow_bitfield, /* complain_on_overflow */ | |
125 | bfd_elf_generic_reloc, /* special_function */ | |
126 | "R_TILEGX_16", /* name */ | |
127 | FALSE, /* partial_inplace */ | |
128 | 0, /* src_mask */ | |
129 | 0xffff, /* dst_mask */ | |
130 | FALSE), /* pcrel_offset */ | |
131 | ||
132 | /* An 8 bit absolute relocation. */ | |
133 | HOWTO (R_TILEGX_8, /* type */ | |
134 | 0, /* rightshift */ | |
135 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
136 | 8, /* bitsize */ | |
137 | FALSE, /* pc_relative */ | |
138 | 0, /* bitpos */ | |
139 | complain_overflow_unsigned, /* complain_on_overflow */ | |
140 | bfd_elf_generic_reloc, /* special_function */ | |
141 | "R_TILEGX_8", /* name */ | |
142 | FALSE, /* partial_inplace */ | |
143 | 0, /* src_mask */ | |
144 | 0xff, /* dst_mask */ | |
145 | FALSE), /* pcrel_offset */ | |
146 | #ifdef BFD64 | |
147 | /* A 64 bit pc-relative relocation. */ | |
148 | HOWTO (R_TILEGX_64_PCREL,/* type */ | |
149 | 0, /* rightshift */ | |
150 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
151 | 64, /* bitsize */ | |
152 | TRUE, /* pc_relative */ | |
153 | 0, /* bitpos */ | |
154 | complain_overflow_dont, /* complain_on_overflow */ | |
155 | bfd_elf_generic_reloc, /* special_function */ | |
156 | "R_TILEGX_32_PCREL", /* name */ | |
157 | FALSE, /* partial_inplace */ | |
158 | 0, /* src_mask */ | |
159 | 0xffffffffffffffffULL, /* dst_mask */ | |
160 | TRUE), /* pcrel_offset */ | |
161 | #endif | |
162 | /* A 32 bit pc-relative relocation. */ | |
163 | HOWTO (R_TILEGX_32_PCREL,/* type */ | |
164 | 0, /* rightshift */ | |
165 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
166 | 32, /* bitsize */ | |
167 | TRUE, /* pc_relative */ | |
168 | 0, /* bitpos */ | |
169 | complain_overflow_dont, /* complain_on_overflow */ | |
170 | bfd_elf_generic_reloc, /* special_function */ | |
171 | "R_TILEGX_32_PCREL", /* name */ | |
172 | FALSE, /* partial_inplace */ | |
173 | 0, /* src_mask */ | |
174 | 0xffffffff, /* dst_mask */ | |
175 | TRUE), /* pcrel_offset */ | |
176 | ||
177 | /* A 16 bit pc-relative relocation. */ | |
178 | HOWTO (R_TILEGX_16_PCREL,/* type */ | |
179 | 0, /* rightshift */ | |
180 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
181 | 16, /* bitsize */ | |
182 | TRUE, /* pc_relative */ | |
183 | 0, /* bitpos */ | |
184 | complain_overflow_signed, /* complain_on_overflow */ | |
185 | bfd_elf_generic_reloc, /* special_function */ | |
186 | "R_TILEGX_16_PCREL", /* name */ | |
187 | FALSE, /* partial_inplace */ | |
188 | 0, /* src_mask */ | |
189 | 0xffff, /* dst_mask */ | |
190 | TRUE), /* pcrel_offset */ | |
191 | ||
192 | /* An 8 bit pc-relative relocation. */ | |
193 | HOWTO (R_TILEGX_8_PCREL, /* type */ | |
194 | 0, /* rightshift */ | |
195 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
196 | 8, /* bitsize */ | |
197 | TRUE, /* pc_relative */ | |
198 | 0, /* bitpos */ | |
199 | complain_overflow_signed, /* complain_on_overflow */ | |
200 | bfd_elf_generic_reloc, /* special_function */ | |
201 | "R_TILEGX_8_PCREL",/* name */ | |
202 | FALSE, /* partial_inplace */ | |
203 | 0, /* src_mask */ | |
204 | 0xff, /* dst_mask */ | |
205 | TRUE), /* pcrel_offset */ | |
206 | ||
207 | /* A 16 bit relocation without overflow. */ | |
208 | HOWTO (R_TILEGX_HW0, /* type */ | |
209 | 0, /* rightshift */ | |
210 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
211 | 16, /* bitsize */ | |
212 | FALSE, /* pc_relative */ | |
213 | 0, /* bitpos */ | |
214 | complain_overflow_dont,/* complain_on_overflow */ | |
215 | bfd_elf_generic_reloc, /* special_function */ | |
216 | "R_TILEGX_HW0", /* name */ | |
217 | FALSE, /* partial_inplace */ | |
218 | 0, /* src_mask */ | |
219 | 0xffff, /* dst_mask */ | |
220 | FALSE), /* pcrel_offset */ | |
221 | ||
222 | /* A 16 bit relocation without overflow. */ | |
223 | HOWTO (R_TILEGX_HW1, /* type */ | |
224 | 16, /* rightshift */ | |
225 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
226 | 16, /* bitsize */ | |
227 | FALSE, /* pc_relative */ | |
228 | 0, /* bitpos */ | |
229 | complain_overflow_dont,/* complain_on_overflow */ | |
230 | bfd_elf_generic_reloc, /* special_function */ | |
231 | "R_TILEGX_HW1", /* name */ | |
232 | FALSE, /* partial_inplace */ | |
233 | 0, /* src_mask */ | |
234 | 0xffff, /* dst_mask */ | |
235 | FALSE), /* pcrel_offset */ | |
236 | ||
237 | /* A 16 bit relocation without overflow. */ | |
238 | HOWTO (R_TILEGX_HW2, /* type */ | |
239 | 32, /* rightshift */ | |
240 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
241 | 16, /* bitsize */ | |
242 | FALSE, /* pc_relative */ | |
243 | 0, /* bitpos */ | |
244 | complain_overflow_dont,/* complain_on_overflow */ | |
245 | bfd_elf_generic_reloc, /* special_function */ | |
246 | "R_TILEGX_HW2", /* name */ | |
247 | FALSE, /* partial_inplace */ | |
248 | 0, /* src_mask */ | |
249 | 0xffff, /* dst_mask */ | |
250 | FALSE), /* pcrel_offset */ | |
251 | ||
252 | /* A 16 bit relocation without overflow. */ | |
253 | HOWTO (R_TILEGX_HW3, /* type */ | |
254 | 48, /* rightshift */ | |
255 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
256 | 16, /* bitsize */ | |
257 | FALSE, /* pc_relative */ | |
258 | 0, /* bitpos */ | |
259 | complain_overflow_dont,/* complain_on_overflow */ | |
260 | bfd_elf_generic_reloc, /* special_function */ | |
261 | "R_TILEGX_HW3", /* name */ | |
262 | FALSE, /* partial_inplace */ | |
263 | 0, /* src_mask */ | |
264 | 0xffff, /* dst_mask */ | |
265 | FALSE), /* pcrel_offset */ | |
266 | ||
267 | /* A 16 bit relocation with overflow. */ | |
268 | HOWTO (R_TILEGX_HW0_LAST, /* type */ | |
269 | 0, /* rightshift */ | |
270 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
271 | 16, /* bitsize */ | |
272 | FALSE, /* pc_relative */ | |
273 | 0, /* bitpos */ | |
274 | complain_overflow_signed,/* complain_on_overflow */ | |
275 | bfd_elf_generic_reloc, /* special_function */ | |
276 | "R_TILEGX_HW0_LAST", /* name */ | |
277 | FALSE, /* partial_inplace */ | |
278 | 0, /* src_mask */ | |
279 | 0xffff, /* dst_mask */ | |
280 | FALSE), /* pcrel_offset */ | |
281 | ||
282 | /* A 16 bit relocation with overflow. */ | |
283 | HOWTO (R_TILEGX_HW1_LAST, /* type */ | |
284 | 16, /* rightshift */ | |
285 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
286 | 16, /* bitsize */ | |
287 | FALSE, /* pc_relative */ | |
288 | 0, /* bitpos */ | |
289 | complain_overflow_signed,/* complain_on_overflow */ | |
290 | bfd_elf_generic_reloc, /* special_function */ | |
291 | "R_TILEGX_HW1_LAST", /* name */ | |
292 | FALSE, /* partial_inplace */ | |
293 | 0, /* src_mask */ | |
294 | 0xffff, /* dst_mask */ | |
295 | FALSE), /* pcrel_offset */ | |
296 | ||
297 | /* A 16 bit relocation with overflow. */ | |
298 | HOWTO (R_TILEGX_HW2_LAST, /* type */ | |
299 | 32, /* rightshift */ | |
300 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
301 | 16, /* bitsize */ | |
302 | FALSE, /* pc_relative */ | |
303 | 0, /* bitpos */ | |
304 | complain_overflow_signed,/* complain_on_overflow */ | |
305 | bfd_elf_generic_reloc, /* special_function */ | |
306 | "R_TILEGX_HW2_LAST", /* name */ | |
307 | FALSE, /* partial_inplace */ | |
308 | 0, /* src_mask */ | |
309 | 0xffff, /* dst_mask */ | |
310 | FALSE), /* pcrel_offset */ | |
311 | ||
312 | HOWTO (R_TILEGX_COPY, /* type */ | |
313 | 0, /* rightshift */ | |
314 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
315 | 0, /* bitsize */ | |
316 | FALSE, /* pc_relative */ | |
317 | 0, /* bitpos */ | |
318 | complain_overflow_dont, /* complain_on_overflow */ | |
319 | bfd_elf_generic_reloc, /* special_function */ | |
320 | "R_TILEGX_COPY", /* name */ | |
321 | FALSE, /* partial_inplace */ | |
322 | 0, /* src_mask */ | |
323 | 0, /* dst_mask */ | |
324 | TRUE), /* pcrel_offset */ | |
325 | ||
326 | HOWTO (R_TILEGX_GLOB_DAT, /* type */ | |
327 | 0, /* rightshift */ | |
328 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
329 | 0, /* bitsize */ | |
330 | FALSE, /* pc_relative */ | |
331 | 0, /* bitpos */ | |
332 | complain_overflow_dont, /* complain_on_overflow */ | |
333 | bfd_elf_generic_reloc, /* special_function */ | |
334 | "R_TILEGX_GLOB_DAT", /* name */ | |
335 | FALSE, /* partial_inplace */ | |
336 | 0, /* src_mask */ | |
337 | 0, /* dst_mask */ | |
338 | TRUE), /* pcrel_offset */ | |
339 | ||
340 | HOWTO (R_TILEGX_JMP_SLOT, /* type */ | |
341 | 0, /* rightshift */ | |
342 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
343 | 0, /* bitsize */ | |
344 | FALSE, /* pc_relative */ | |
345 | 0, /* bitpos */ | |
346 | complain_overflow_dont, /* complain_on_overflow */ | |
347 | bfd_elf_generic_reloc, /* special_function */ | |
348 | "R_TILEGX_JMP_SLOT", /* name */ | |
349 | FALSE, /* partial_inplace */ | |
350 | 0, /* src_mask */ | |
351 | 0, /* dst_mask */ | |
352 | TRUE), /* pcrel_offset */ | |
353 | ||
354 | HOWTO (R_TILEGX_RELATIVE, /* type */ | |
355 | 0, /* rightshift */ | |
356 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
357 | 0, /* bitsize */ | |
358 | FALSE, /* pc_relative */ | |
359 | 0, /* bitpos */ | |
360 | complain_overflow_dont, /* complain_on_overflow */ | |
361 | bfd_elf_generic_reloc, /* special_function */ | |
362 | "R_TILEGX_RELATIVE", /* name */ | |
363 | FALSE, /* partial_inplace */ | |
364 | 0, /* src_mask */ | |
365 | 0, /* dst_mask */ | |
366 | TRUE), /* pcrel_offset */ | |
367 | ||
368 | HOWTO (R_TILEGX_BROFF_X1, /* type */ | |
369 | TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */ | |
370 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
371 | 17, /* bitsize */ | |
372 | TRUE, /* pc_relative */ | |
373 | 0, /* bitpos */ | |
374 | complain_overflow_signed, /* complain_on_overflow */ | |
375 | bfd_elf_generic_reloc, /* special_function */ | |
376 | "R_TILEGX_BROFF_X1", /* name */ | |
377 | FALSE, /* partial_inplace */ | |
378 | 0, /* src_mask */ | |
379 | -1, /* dst_mask */ | |
380 | TRUE), /* pcrel_offset */ | |
381 | ||
382 | HOWTO (R_TILEGX_JUMPOFF_X1, /* type */ | |
383 | TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */ | |
384 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
385 | 27, /* bitsize */ | |
386 | TRUE, /* pc_relative */ | |
387 | 0, /* bitpos */ | |
388 | complain_overflow_signed,/* complain_on_overflow */ | |
389 | bfd_elf_generic_reloc, /* special_function */ | |
390 | "R_TILEGX_JUMPOFF_X1", /* name */ | |
391 | FALSE, /* partial_inplace */ | |
392 | 0, /* src_mask */ | |
393 | -1, /* dst_mask */ | |
07d6d2b8 | 394 | TRUE), /* pcrel_offset */ |
aa137e4d NC |
395 | |
396 | HOWTO (R_TILEGX_JUMPOFF_X1_PLT, /* type */ | |
397 | TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */ | |
398 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
399 | 27, /* bitsize */ | |
400 | TRUE, /* pc_relative */ | |
401 | 0, /* bitpos */ | |
402 | complain_overflow_signed,/* complain_on_overflow */ | |
403 | bfd_elf_generic_reloc, /* special_function */ | |
404 | "R_TILEGX_JUMPOFF_X1_PLT", /* name */ | |
405 | FALSE, /* partial_inplace */ | |
406 | 0, /* src_mask */ | |
407 | -1, /* dst_mask */ | |
07d6d2b8 | 408 | TRUE), /* pcrel_offset */ |
aa137e4d NC |
409 | |
410 | #define TILEGX_IMM_HOWTO(name, size, bitsize) \ | |
411 | HOWTO (name, 0, size, bitsize, FALSE, 0, \ | |
07d6d2b8 AM |
412 | complain_overflow_signed, bfd_elf_generic_reloc, \ |
413 | #name, FALSE, 0, -1, FALSE) | |
aa137e4d NC |
414 | |
415 | #define TILEGX_UIMM_HOWTO(name, size, bitsize) \ | |
416 | HOWTO (name, 0, size, bitsize, FALSE, 0, \ | |
07d6d2b8 AM |
417 | complain_overflow_unsigned, bfd_elf_generic_reloc, \ |
418 | #name, FALSE, 0, -1, FALSE) | |
aa137e4d NC |
419 | |
420 | TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0, 0, 8), | |
421 | TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0, 0, 8), | |
422 | TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1, 0, 8), | |
423 | TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1, 0, 8), | |
424 | TILEGX_IMM_HOWTO(R_TILEGX_DEST_IMM8_X1, 0, 8), | |
425 | ||
426 | TILEGX_UIMM_HOWTO(R_TILEGX_MT_IMM14_X1, 1, 14), | |
427 | TILEGX_UIMM_HOWTO(R_TILEGX_MF_IMM14_X1, 1, 14), | |
428 | ||
429 | TILEGX_UIMM_HOWTO(R_TILEGX_MMSTART_X0, 0, 6), | |
430 | TILEGX_UIMM_HOWTO(R_TILEGX_MMEND_X0, 0, 6), | |
431 | ||
432 | TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_X0, 0, 6), | |
433 | TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_X1, 0, 6), | |
434 | TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_Y0, 0, 6), | |
435 | TILEGX_UIMM_HOWTO(R_TILEGX_SHAMT_Y1, 0, 6), | |
436 | ||
437 | #define TILEGX_IMM16_HOWTO(name, rshift) \ | |
438 | HOWTO (name, rshift, 1, 16, FALSE, 0, \ | |
07d6d2b8 AM |
439 | complain_overflow_dont, bfd_elf_generic_reloc, \ |
440 | #name, FALSE, 0, 0xffff, FALSE) | |
aa137e4d NC |
441 | |
442 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0, 0), | |
443 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0, 0), | |
444 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW1, 16), | |
445 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW1, 16), | |
446 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW2, 32), | |
447 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW2, 32), | |
448 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW3, 48), | |
449 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW3, 48), | |
450 | ||
451 | #define TILEGX_IMM16_HOWTO_LAST(name, rshift) \ | |
452 | HOWTO (name, rshift, 1, 16, FALSE, 0, \ | |
07d6d2b8 AM |
453 | complain_overflow_signed, bfd_elf_generic_reloc, \ |
454 | #name, FALSE, 0, 0xffff, FALSE) | |
aa137e4d NC |
455 | |
456 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST, 0), | |
457 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST, 0), | |
458 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST, 16), | |
459 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST, 16), | |
460 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW2_LAST, 32), | |
461 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW2_LAST, 32), | |
462 | ||
463 | /* PC-relative offsets. */ | |
464 | ||
465 | #define TILEGX_IMM16_HOWTO_PCREL(name, rshift) \ | |
466 | HOWTO (name, rshift, 1, 16, TRUE, 0, \ | |
07d6d2b8 AM |
467 | complain_overflow_dont, bfd_elf_generic_reloc, \ |
468 | #name, FALSE, 0, 0xffff, TRUE) | |
aa137e4d NC |
469 | |
470 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW0_PCREL, 0), | |
471 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW0_PCREL, 0), | |
472 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW1_PCREL, 16), | |
473 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW1_PCREL, 16), | |
474 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW2_PCREL, 32), | |
475 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW2_PCREL, 32), | |
476 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW3_PCREL, 48), | |
477 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW3_PCREL, 48), | |
478 | ||
479 | #define TILEGX_IMM16_HOWTO_LAST_PCREL(name, rshift) \ | |
480 | HOWTO (name, rshift, 1, 16, TRUE, 0, \ | |
07d6d2b8 AM |
481 | complain_overflow_signed, bfd_elf_generic_reloc, \ |
482 | #name, FALSE, 0, 0xffff, TRUE) | |
aa137e4d NC |
483 | |
484 | TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW0_LAST_PCREL, 0), | |
485 | TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW0_LAST_PCREL, 0), | |
486 | TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW1_LAST_PCREL, 16), | |
487 | TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW1_LAST_PCREL, 16), | |
488 | TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW2_LAST_PCREL, 32), | |
489 | TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW2_LAST_PCREL, 32), | |
490 | ||
491 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_GOT, 0), | |
492 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_GOT, 0), | |
e5b95258 WL |
493 | |
494 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW0_PLT_PCREL, 0), | |
495 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW0_PLT_PCREL, 0), | |
496 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW1_PLT_PCREL, 16), | |
497 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW1_PLT_PCREL, 16), | |
498 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW2_PLT_PCREL, 32), | |
499 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW2_PLT_PCREL, 32), | |
aa137e4d NC |
500 | |
501 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_GOT, 0), | |
502 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_GOT, 0), | |
503 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_GOT, 16), | |
504 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_GOT, 16), | |
e5b95258 WL |
505 | |
506 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X0_HW3_PLT_PCREL, 48), | |
507 | TILEGX_IMM16_HOWTO_PCREL (R_TILEGX_IMM16_X1_HW3_PLT_PCREL, 48), | |
aa137e4d NC |
508 | |
509 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_GD, 0), | |
510 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_GD, 0), | |
6f7be959 WL |
511 | |
512 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X0_HW0_TLS_LE, 0), | |
513 | TILEGX_IMM16_HOWTO (R_TILEGX_IMM16_X1_HW0_TLS_LE, 0), | |
514 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE, 0), | |
515 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE, 0), | |
516 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE, 16), | |
517 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE, 16), | |
aa137e4d NC |
518 | |
519 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD, 0), | |
520 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD, 0), | |
521 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD, 16), | |
522 | TILEGX_IMM16_HOWTO_LAST (R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD, 16), | |
6f7be959 WL |
523 | EMPTY_HOWTO (90), |
524 | EMPTY_HOWTO (91), | |
aa137e4d NC |
525 | |
526 | #define TILEGX_IMM16_HOWTO_TLS_IE(name, rshift) \ | |
527 | HOWTO (name, rshift, 1, 16, FALSE, 0, \ | |
07d6d2b8 AM |
528 | complain_overflow_dont, bfd_elf_generic_reloc, \ |
529 | #name, FALSE, 0, 0xffff, TRUE) | |
aa137e4d NC |
530 | |
531 | TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X0_HW0_TLS_IE, 0), | |
532 | TILEGX_IMM16_HOWTO_TLS_IE (R_TILEGX_IMM16_X1_HW0_TLS_IE, 0), | |
e5b95258 WL |
533 | |
534 | TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL, 0), | |
535 | TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL, 0), | |
536 | TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL, 16), | |
537 | TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL, 16), | |
538 | TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL, 32), | |
539 | TILEGX_IMM16_HOWTO_LAST_PCREL (R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL, 32), | |
aa137e4d NC |
540 | |
541 | #define TILEGX_IMM16_HOWTO_LAST_TLS_IE(name, rshift) \ | |
542 | HOWTO (name, rshift, 1, 16, FALSE, 0, \ | |
07d6d2b8 AM |
543 | complain_overflow_signed, bfd_elf_generic_reloc, \ |
544 | #name, FALSE, 0, 0xffff, TRUE) | |
aa137e4d NC |
545 | |
546 | TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE, 0), | |
547 | TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE, 0), | |
548 | TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE, 16), | |
549 | TILEGX_IMM16_HOWTO_LAST_TLS_IE (R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE, 16), | |
6f7be959 WL |
550 | EMPTY_HOWTO (104), |
551 | EMPTY_HOWTO (105), | |
aa137e4d NC |
552 | |
553 | HOWTO(R_TILEGX_TLS_DTPMOD64, 0, 0, 0, FALSE, 0, complain_overflow_dont, | |
07d6d2b8 AM |
554 | bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD64", |
555 | FALSE, 0, 0, TRUE), | |
aa137e4d | 556 | HOWTO(R_TILEGX_TLS_DTPOFF64, 0, 4, 64, FALSE, 0, complain_overflow_bitfield, |
07d6d2b8 AM |
557 | bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF64", |
558 | FALSE, 0, -1, TRUE), | |
aa137e4d | 559 | HOWTO(R_TILEGX_TLS_TPOFF64, 0, 0, 0, FALSE, 0, complain_overflow_dont, |
07d6d2b8 AM |
560 | bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF64", |
561 | FALSE, 0, 0, TRUE), | |
aa137e4d NC |
562 | |
563 | HOWTO(R_TILEGX_TLS_DTPMOD32, 0, 0, 0, FALSE, 0, complain_overflow_dont, | |
07d6d2b8 AM |
564 | bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPMOD32", |
565 | FALSE, 0, 0, TRUE), | |
aa137e4d | 566 | HOWTO(R_TILEGX_TLS_DTPOFF32, 0, 4, 32, FALSE, 0, complain_overflow_bitfield, |
07d6d2b8 AM |
567 | bfd_elf_generic_reloc, "R_TILEGX_TLS_DTPOFF32", |
568 | FALSE, 0, -1, TRUE), | |
aa137e4d | 569 | HOWTO(R_TILEGX_TLS_TPOFF32, 0, 0, 0, FALSE, 0, complain_overflow_dont, |
07d6d2b8 AM |
570 | bfd_elf_generic_reloc, "R_TILEGX_TLS_TPOFF32", |
571 | FALSE, 0, 0, TRUE), | |
6f7be959 WL |
572 | |
573 | HOWTO (R_TILEGX_TLS_GD_CALL, /* type */ | |
574 | TILEGX_LOG2_BUNDLE_ALIGNMENT_IN_BYTES, /* rightshift */ | |
575 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
576 | 27, /* bitsize */ | |
577 | TRUE, /* pc_relative */ | |
578 | 0, /* bitpos */ | |
579 | complain_overflow_signed,/* complain_on_overflow */ | |
580 | bfd_elf_generic_reloc, /* special_function */ | |
581 | "R_TILEGX_TLS_GD_CALL", /* name */ | |
582 | FALSE, /* partial_inplace */ | |
583 | 0, /* src_mask */ | |
584 | -1, /* dst_mask */ | |
07d6d2b8 | 585 | TRUE), /* pcrel_offset */ |
6f7be959 WL |
586 | |
587 | TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_GD_ADD, 0, 8), | |
588 | TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_GD_ADD, 0, 8), | |
589 | TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_GD_ADD, 0, 8), | |
590 | TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_GD_ADD, 0, 8), | |
591 | TILEGX_IMM_HOWTO(R_TILEGX_TLS_IE_LOAD, 0, 8), | |
592 | TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X0_TLS_ADD, 0, 8), | |
593 | TILEGX_IMM_HOWTO(R_TILEGX_IMM8_X1_TLS_ADD, 0, 8), | |
594 | TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y0_TLS_ADD, 0, 8), | |
595 | TILEGX_IMM_HOWTO(R_TILEGX_IMM8_Y1_TLS_ADD, 0, 8), | |
aa137e4d NC |
596 | }; |
597 | ||
598 | static reloc_howto_type tilegx_elf_howto_table2 [] = | |
599 | { | |
600 | /* GNU extension to record C++ vtable hierarchy */ | |
601 | HOWTO (R_TILEGX_GNU_VTINHERIT, /* type */ | |
07d6d2b8 AM |
602 | 0, /* rightshift */ |
603 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
604 | 0, /* bitsize */ | |
605 | FALSE, /* pc_relative */ | |
606 | 0, /* bitpos */ | |
607 | complain_overflow_dont, /* complain_on_overflow */ | |
608 | NULL, /* special_function */ | |
609 | "R_TILEGX_GNU_VTINHERIT", /* name */ | |
610 | FALSE, /* partial_inplace */ | |
611 | 0, /* src_mask */ | |
612 | 0, /* dst_mask */ | |
613 | FALSE), /* pcrel_offset */ | |
aa137e4d NC |
614 | |
615 | /* GNU extension to record C++ vtable member usage */ | |
07d6d2b8 AM |
616 | HOWTO (R_TILEGX_GNU_VTENTRY, /* type */ |
617 | 0, /* rightshift */ | |
618 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
619 | 0, /* bitsize */ | |
620 | FALSE, /* pc_relative */ | |
621 | 0, /* bitpos */ | |
622 | complain_overflow_dont, /* complain_on_overflow */ | |
623 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
624 | "R_TILEGX_GNU_VTENTRY", /* name */ | |
625 | FALSE, /* partial_inplace */ | |
626 | 0, /* src_mask */ | |
627 | 0, /* dst_mask */ | |
628 | FALSE), /* pcrel_offset */ | |
aa137e4d NC |
629 | |
630 | }; | |
631 | \f | |
632 | /* Map BFD reloc types to TILEGX ELF reloc types. */ | |
633 | ||
634 | typedef struct tilegx_reloc_map | |
635 | { | |
636 | bfd_reloc_code_real_type bfd_reloc_val; | |
07d6d2b8 AM |
637 | unsigned int tilegx_reloc_val; |
638 | reloc_howto_type * table; | |
aa137e4d NC |
639 | } reloc_map; |
640 | ||
641 | static const reloc_map tilegx_reloc_map [] = | |
642 | { | |
643 | #define TH_REMAP(bfd, tilegx) \ | |
644 | { bfd, tilegx, tilegx_elf_howto_table }, | |
645 | ||
646 | /* Standard relocations. */ | |
07d6d2b8 AM |
647 | TH_REMAP (BFD_RELOC_NONE, R_TILEGX_NONE) |
648 | TH_REMAP (BFD_RELOC_64, R_TILEGX_64) | |
649 | TH_REMAP (BFD_RELOC_32, R_TILEGX_32) | |
650 | TH_REMAP (BFD_RELOC_16, R_TILEGX_16) | |
651 | TH_REMAP (BFD_RELOC_8, R_TILEGX_8) | |
652 | TH_REMAP (BFD_RELOC_64_PCREL, R_TILEGX_64_PCREL) | |
653 | TH_REMAP (BFD_RELOC_32_PCREL, R_TILEGX_32_PCREL) | |
654 | TH_REMAP (BFD_RELOC_16_PCREL, R_TILEGX_16_PCREL) | |
655 | TH_REMAP (BFD_RELOC_8_PCREL, R_TILEGX_8_PCREL) | |
aa137e4d NC |
656 | |
657 | #define SIMPLE_REMAP(t) TH_REMAP (BFD_RELOC_##t, R_##t) | |
658 | ||
659 | /* Custom relocations. */ | |
660 | SIMPLE_REMAP (TILEGX_HW0) | |
661 | SIMPLE_REMAP (TILEGX_HW1) | |
662 | SIMPLE_REMAP (TILEGX_HW2) | |
663 | SIMPLE_REMAP (TILEGX_HW3) | |
664 | SIMPLE_REMAP (TILEGX_HW0_LAST) | |
665 | SIMPLE_REMAP (TILEGX_HW1_LAST) | |
666 | SIMPLE_REMAP (TILEGX_HW2_LAST) | |
667 | SIMPLE_REMAP (TILEGX_COPY) | |
668 | SIMPLE_REMAP (TILEGX_GLOB_DAT) | |
669 | SIMPLE_REMAP (TILEGX_JMP_SLOT) | |
670 | SIMPLE_REMAP (TILEGX_RELATIVE) | |
671 | SIMPLE_REMAP (TILEGX_BROFF_X1) | |
672 | SIMPLE_REMAP (TILEGX_JUMPOFF_X1) | |
673 | SIMPLE_REMAP (TILEGX_JUMPOFF_X1_PLT) | |
674 | SIMPLE_REMAP (TILEGX_IMM8_X0) | |
675 | SIMPLE_REMAP (TILEGX_IMM8_Y0) | |
676 | SIMPLE_REMAP (TILEGX_IMM8_X1) | |
677 | SIMPLE_REMAP (TILEGX_IMM8_Y1) | |
678 | SIMPLE_REMAP (TILEGX_DEST_IMM8_X1) | |
679 | SIMPLE_REMAP (TILEGX_MT_IMM14_X1) | |
680 | SIMPLE_REMAP (TILEGX_MF_IMM14_X1) | |
681 | SIMPLE_REMAP (TILEGX_MMSTART_X0) | |
682 | SIMPLE_REMAP (TILEGX_MMEND_X0) | |
683 | SIMPLE_REMAP (TILEGX_SHAMT_X0) | |
684 | SIMPLE_REMAP (TILEGX_SHAMT_X1) | |
685 | SIMPLE_REMAP (TILEGX_SHAMT_Y0) | |
686 | SIMPLE_REMAP (TILEGX_SHAMT_Y1) | |
687 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0) | |
688 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0) | |
689 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW1) | |
690 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW1) | |
691 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW2) | |
692 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW2) | |
693 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW3) | |
694 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW3) | |
695 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST) | |
696 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST) | |
697 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST) | |
698 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST) | |
699 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST) | |
700 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST) | |
701 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PCREL) | |
702 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PCREL) | |
703 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PCREL) | |
704 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PCREL) | |
705 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PCREL) | |
706 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PCREL) | |
707 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PCREL) | |
708 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PCREL) | |
709 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PCREL) | |
710 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PCREL) | |
711 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PCREL) | |
712 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PCREL) | |
713 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PCREL) | |
714 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PCREL) | |
715 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_GOT) | |
716 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_GOT) | |
e5b95258 WL |
717 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_PLT_PCREL) |
718 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_PLT_PCREL) | |
719 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_PLT_PCREL) | |
720 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_PLT_PCREL) | |
721 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_PLT_PCREL) | |
722 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_PLT_PCREL) | |
aa137e4d NC |
723 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_GOT) |
724 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_GOT) | |
725 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_GOT) | |
726 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_GOT) | |
e5b95258 WL |
727 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW3_PLT_PCREL) |
728 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW3_PLT_PCREL) | |
aa137e4d NC |
729 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_GD) |
730 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_GD) | |
6f7be959 WL |
731 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_LE) |
732 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_LE) | |
733 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_LE) | |
734 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_LE) | |
735 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_LE) | |
736 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_LE) | |
aa137e4d NC |
737 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_GD) |
738 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_GD) | |
739 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_GD) | |
740 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_GD) | |
aa137e4d NC |
741 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_TLS_IE) |
742 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_TLS_IE) | |
e5b95258 WL |
743 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL) |
744 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL) | |
745 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL) | |
746 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL) | |
747 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL) | |
748 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL) | |
aa137e4d NC |
749 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW0_LAST_TLS_IE) |
750 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW0_LAST_TLS_IE) | |
751 | SIMPLE_REMAP (TILEGX_IMM16_X0_HW1_LAST_TLS_IE) | |
752 | SIMPLE_REMAP (TILEGX_IMM16_X1_HW1_LAST_TLS_IE) | |
aa137e4d NC |
753 | |
754 | SIMPLE_REMAP (TILEGX_TLS_DTPMOD64) | |
755 | SIMPLE_REMAP (TILEGX_TLS_DTPOFF64) | |
756 | SIMPLE_REMAP (TILEGX_TLS_TPOFF64) | |
757 | ||
758 | SIMPLE_REMAP (TILEGX_TLS_DTPMOD32) | |
759 | SIMPLE_REMAP (TILEGX_TLS_DTPOFF32) | |
760 | SIMPLE_REMAP (TILEGX_TLS_TPOFF32) | |
761 | ||
6f7be959 WL |
762 | SIMPLE_REMAP (TILEGX_TLS_GD_CALL) |
763 | SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_GD_ADD) | |
764 | SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_GD_ADD) | |
765 | SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_GD_ADD) | |
766 | SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_GD_ADD) | |
767 | SIMPLE_REMAP (TILEGX_TLS_IE_LOAD) | |
768 | SIMPLE_REMAP (TILEGX_IMM8_X0_TLS_ADD) | |
769 | SIMPLE_REMAP (TILEGX_IMM8_X1_TLS_ADD) | |
770 | SIMPLE_REMAP (TILEGX_IMM8_Y0_TLS_ADD) | |
771 | SIMPLE_REMAP (TILEGX_IMM8_Y1_TLS_ADD) | |
772 | ||
aa137e4d NC |
773 | #undef SIMPLE_REMAP |
774 | #undef TH_REMAP | |
775 | ||
07d6d2b8 AM |
776 | { BFD_RELOC_VTABLE_INHERIT, R_TILEGX_GNU_VTINHERIT, tilegx_elf_howto_table2 }, |
777 | { BFD_RELOC_VTABLE_ENTRY, R_TILEGX_GNU_VTENTRY, tilegx_elf_howto_table2 }, | |
aa137e4d NC |
778 | }; |
779 | ||
780 | ||
781 | ||
aa137e4d NC |
782 | /* TILEGX ELF linker hash entry. */ |
783 | ||
784 | struct tilegx_elf_link_hash_entry | |
785 | { | |
786 | struct elf_link_hash_entry elf; | |
787 | ||
788 | /* Track dynamic relocs copied for this symbol. */ | |
3bf083ed | 789 | struct elf_dyn_relocs *dyn_relocs; |
aa137e4d NC |
790 | |
791 | #define GOT_UNKNOWN 0 | |
792 | #define GOT_NORMAL 1 | |
793 | #define GOT_TLS_GD 2 | |
794 | #define GOT_TLS_IE 4 | |
795 | unsigned char tls_type; | |
796 | }; | |
797 | ||
798 | #define tilegx_elf_hash_entry(ent) \ | |
799 | ((struct tilegx_elf_link_hash_entry *)(ent)) | |
800 | ||
801 | struct _bfd_tilegx_elf_obj_tdata | |
802 | { | |
803 | struct elf_obj_tdata root; | |
804 | ||
805 | /* tls_type for each local got entry. */ | |
806 | char *local_got_tls_type; | |
807 | }; | |
808 | ||
809 | #define _bfd_tilegx_elf_tdata(abfd) \ | |
810 | ((struct _bfd_tilegx_elf_obj_tdata *) (abfd)->tdata.any) | |
811 | ||
812 | #define _bfd_tilegx_elf_local_got_tls_type(abfd) \ | |
813 | (_bfd_tilegx_elf_tdata (abfd)->local_got_tls_type) | |
814 | ||
815 | #define is_tilegx_elf(bfd) \ | |
816 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
817 | && elf_tdata (bfd) != NULL \ | |
818 | && elf_object_id (bfd) == TILEGX_ELF_DATA) | |
819 | ||
820 | #include "elf/common.h" | |
821 | #include "elf/internal.h" | |
822 | ||
823 | struct tilegx_elf_link_hash_table | |
824 | { | |
825 | struct elf_link_hash_table elf; | |
826 | ||
827 | int bytes_per_word; | |
828 | int word_align_power; | |
829 | int bytes_per_rela; | |
830 | int dtpmod_reloc; | |
831 | int dtpoff_reloc; | |
832 | int tpoff_reloc; | |
833 | bfd_vma (*r_info) (Elf_Internal_Rela *, bfd_vma, bfd_vma); | |
834 | bfd_vma (*r_symndx) (bfd_vma); | |
835 | void (*put_word) (bfd *, bfd_vma, void *); | |
836 | const char *dynamic_interpreter; | |
837 | ||
6f7be959 WL |
838 | /* Whether LE transition has been disabled for some of the |
839 | sections. */ | |
840 | bfd_boolean disable_le_transition; | |
841 | ||
aa137e4d NC |
842 | /* Small local sym to section mapping cache. */ |
843 | struct sym_cache sym_cache; | |
844 | }; | |
845 | ||
846 | ||
847 | /* Get the Tile ELF linker hash table from a link_info structure. */ | |
848 | #define tilegx_elf_hash_table(p) \ | |
849 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ | |
850 | == TILEGX_ELF_DATA ? ((struct tilegx_elf_link_hash_table *) ((p)->hash)) : NULL) | |
851 | ||
852 | #ifdef BFD64 | |
853 | static bfd_vma | |
854 | tilegx_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED, | |
855 | bfd_vma rel_index, | |
856 | bfd_vma type) | |
857 | { | |
858 | return ELF64_R_INFO (rel_index, type); | |
859 | } | |
860 | ||
861 | static bfd_vma | |
862 | tilegx_elf_r_symndx_64 (bfd_vma r_info) | |
863 | { | |
864 | return ELF64_R_SYM (r_info); | |
865 | } | |
866 | ||
867 | static void | |
868 | tilegx_put_word_64 (bfd *abfd, bfd_vma val, void *ptr) | |
869 | { | |
870 | bfd_put_64 (abfd, val, ptr); | |
871 | } | |
872 | #endif /* BFD64 */ | |
873 | ||
874 | static bfd_vma | |
875 | tilegx_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED, | |
876 | bfd_vma rel_index, | |
877 | bfd_vma type) | |
878 | { | |
879 | return ELF32_R_INFO (rel_index, type); | |
880 | } | |
881 | ||
882 | static bfd_vma | |
883 | tilegx_elf_r_symndx_32 (bfd_vma r_info) | |
884 | { | |
885 | return ELF32_R_SYM (r_info); | |
886 | } | |
887 | ||
888 | static void | |
889 | tilegx_put_word_32 (bfd *abfd, bfd_vma val, void *ptr) | |
890 | { | |
891 | bfd_put_32 (abfd, val, ptr); | |
892 | } | |
893 | ||
894 | reloc_howto_type * | |
895 | tilegx_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, | |
896 | bfd_reloc_code_real_type code) | |
897 | { | |
898 | unsigned int i; | |
899 | ||
0ba38529 | 900 | for (i = ARRAY_SIZE (tilegx_reloc_map); i--;) |
aa137e4d NC |
901 | { |
902 | const reloc_map * entry; | |
903 | ||
904 | entry = tilegx_reloc_map + i; | |
905 | ||
906 | if (entry->bfd_reloc_val == code) | |
907 | return entry->table + (entry->tilegx_reloc_val | |
908 | - entry->table[0].type); | |
909 | } | |
910 | ||
911 | return NULL; | |
912 | } | |
913 | ||
914 | reloc_howto_type * | |
915 | tilegx_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
916 | const char *r_name) | |
917 | { | |
918 | unsigned int i; | |
919 | ||
920 | for (i = 0; | |
921 | i < (sizeof (tilegx_elf_howto_table) | |
07d6d2b8 | 922 | / sizeof (tilegx_elf_howto_table[0])); |
aa137e4d NC |
923 | i++) |
924 | if (tilegx_elf_howto_table[i].name != NULL | |
07d6d2b8 | 925 | && strcasecmp (tilegx_elf_howto_table[i].name, r_name) == 0) |
aa137e4d NC |
926 | return &tilegx_elf_howto_table[i]; |
927 | ||
928 | return NULL; | |
929 | } | |
930 | ||
931 | void | |
932 | tilegx_info_to_howto_rela (bfd *abfd ATTRIBUTE_UNUSED, | |
933 | arelent *cache_ptr, | |
934 | Elf_Internal_Rela *dst) | |
935 | { | |
936 | unsigned int r_type = TILEGX_ELF_R_TYPE (dst->r_info); | |
937 | ||
6f7be959 | 938 | if (r_type <= (unsigned int) R_TILEGX_IMM8_Y1_TLS_ADD) |
aa137e4d NC |
939 | cache_ptr->howto = &tilegx_elf_howto_table [r_type]; |
940 | else if (r_type - R_TILEGX_GNU_VTINHERIT | |
941 | <= (unsigned int) R_TILEGX_GNU_VTENTRY) | |
942 | cache_ptr->howto | |
943 | = &tilegx_elf_howto_table2 [r_type - R_TILEGX_GNU_VTINHERIT]; | |
944 | else | |
945 | abort (); | |
946 | } | |
947 | ||
948 | typedef tilegx_bundle_bits (*tilegx_create_func)(int); | |
949 | ||
950 | static const tilegx_create_func reloc_to_create_func[] = | |
951 | { | |
952 | /* The first twenty relocation types don't correspond to operands */ | |
953 | NULL, | |
954 | NULL, | |
955 | NULL, | |
956 | NULL, | |
957 | NULL, | |
958 | NULL, | |
959 | NULL, | |
960 | NULL, | |
961 | NULL, | |
962 | NULL, | |
963 | NULL, | |
964 | NULL, | |
965 | NULL, | |
966 | NULL, | |
967 | NULL, | |
968 | NULL, | |
969 | NULL, | |
970 | NULL, | |
971 | NULL, | |
972 | NULL, | |
973 | ||
974 | /* The remaining relocations are used for immediate operands */ | |
975 | create_BrOff_X1, | |
976 | create_JumpOff_X1, | |
977 | create_JumpOff_X1, | |
978 | create_Imm8_X0, | |
979 | create_Imm8_Y0, | |
980 | create_Imm8_X1, | |
981 | create_Imm8_Y1, | |
982 | create_Dest_Imm8_X1, | |
983 | create_MT_Imm14_X1, | |
984 | create_MF_Imm14_X1, | |
985 | create_BFStart_X0, | |
986 | create_BFEnd_X0, | |
987 | create_ShAmt_X0, | |
988 | create_ShAmt_X1, | |
989 | create_ShAmt_Y0, | |
990 | create_ShAmt_Y1, | |
991 | create_Imm16_X0, | |
992 | create_Imm16_X1, | |
993 | create_Imm16_X0, | |
994 | create_Imm16_X1, | |
995 | create_Imm16_X0, | |
996 | create_Imm16_X1, | |
997 | create_Imm16_X0, | |
998 | create_Imm16_X1, | |
999 | create_Imm16_X0, | |
1000 | create_Imm16_X1, | |
1001 | create_Imm16_X0, | |
1002 | create_Imm16_X1, | |
1003 | create_Imm16_X0, | |
1004 | create_Imm16_X1, | |
1005 | create_Imm16_X0, | |
1006 | create_Imm16_X1, | |
1007 | create_Imm16_X0, | |
1008 | create_Imm16_X1, | |
1009 | create_Imm16_X0, | |
1010 | create_Imm16_X1, | |
1011 | create_Imm16_X0, | |
1012 | create_Imm16_X1, | |
1013 | create_Imm16_X0, | |
1014 | create_Imm16_X1, | |
1015 | create_Imm16_X0, | |
1016 | create_Imm16_X1, | |
1017 | create_Imm16_X0, | |
1018 | create_Imm16_X1, | |
1019 | create_Imm16_X0, | |
1020 | create_Imm16_X1, | |
1021 | create_Imm16_X0, | |
1022 | create_Imm16_X1, | |
1023 | create_Imm16_X0, | |
1024 | create_Imm16_X1, | |
1025 | create_Imm16_X0, | |
1026 | create_Imm16_X1, | |
1027 | create_Imm16_X0, | |
1028 | create_Imm16_X1, | |
1029 | create_Imm16_X0, | |
1030 | create_Imm16_X1, | |
1031 | create_Imm16_X0, | |
1032 | create_Imm16_X1, | |
1033 | create_Imm16_X0, | |
1034 | create_Imm16_X1, | |
1035 | create_Imm16_X0, | |
1036 | create_Imm16_X1, | |
e5b95258 WL |
1037 | create_Imm16_X0, |
1038 | create_Imm16_X1, | |
1039 | create_Imm16_X0, | |
1040 | create_Imm16_X1, | |
1041 | create_Imm16_X0, | |
1042 | create_Imm16_X1, | |
aa137e4d NC |
1043 | create_Imm16_X0, |
1044 | create_Imm16_X1, | |
6f7be959 WL |
1045 | NULL, |
1046 | NULL, | |
e5b95258 WL |
1047 | create_Imm16_X0, |
1048 | create_Imm16_X1, | |
1049 | create_Imm16_X0, | |
1050 | create_Imm16_X1, | |
1051 | create_Imm16_X0, | |
1052 | create_Imm16_X1, | |
1053 | create_Imm16_X0, | |
1054 | create_Imm16_X1, | |
aa137e4d NC |
1055 | create_Imm16_X0, |
1056 | create_Imm16_X1, | |
1057 | create_Imm16_X0, | |
1058 | create_Imm16_X1, | |
aa137e4d NC |
1059 | }; |
1060 | ||
1061 | static void | |
1062 | tilegx_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel) | |
1063 | { | |
1064 | const struct elf_backend_data *bed; | |
1065 | bfd_byte *loc; | |
1066 | ||
1067 | bed = get_elf_backend_data (abfd); | |
1068 | loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela); | |
1069 | bed->s->swap_reloca_out (abfd, rel, loc); | |
1070 | } | |
1071 | ||
1072 | /* PLT/GOT stuff */ | |
1073 | ||
1074 | /* The procedure linkage table starts with the following header: | |
1075 | ||
07d6d2b8 AM |
1076 | ld_add r28, r27, 8 |
1077 | ld r27, r27 | |
aa137e4d | 1078 | { |
07d6d2b8 AM |
1079 | jr r27 |
1080 | info 10 ## SP not offset, return PC in LR | |
aa137e4d NC |
1081 | } |
1082 | ||
1083 | Subsequent entries are the following, jumping to the header at the end: | |
1084 | ||
1085 | { | |
07d6d2b8 AM |
1086 | moveli r28, <_GLOBAL_OFFSET_TABLE_ - 1f + MY_GOT_OFFSET> |
1087 | lnk r26 | |
aa137e4d NC |
1088 | } |
1089 | 1: | |
1090 | { | |
07d6d2b8 AM |
1091 | moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b> |
1092 | shl16insli r28, r28, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET> | |
aa137e4d NC |
1093 | } |
1094 | { | |
07d6d2b8 AM |
1095 | add r28, r26, r28 |
1096 | shl16insli r27, r27, <_GLOBAL_OFFSET_TABLE_ - 1b> | |
aa137e4d NC |
1097 | } |
1098 | { | |
07d6d2b8 AM |
1099 | add r27, r26, r27 |
1100 | ld r28, r28 | |
1101 | info 10 ## SP not offset, return PC in LR | |
aa137e4d NC |
1102 | } |
1103 | { | |
07d6d2b8 AM |
1104 | shl16insli r29, zero, MY_PLT_INDEX |
1105 | jr r28 | |
aa137e4d NC |
1106 | } |
1107 | ||
1108 | This code sequence lets the code at at the start of the PLT determine | |
1109 | which PLT entry was executed by examining 'r29'. | |
1110 | ||
1111 | Note that MY_PLT_INDEX skips over the header entries, so the first | |
1112 | actual jump table entry has index zero. | |
1113 | ||
1114 | If the offset fits in 16 bits, | |
1115 | ||
07d6d2b8 | 1116 | lnk r26 |
aa137e4d NC |
1117 | 1: |
1118 | { | |
07d6d2b8 AM |
1119 | addli r28, r26, <_GLOBAL_OFFSET_TABLE_ - 1b + MY_GOT_OFFSET> |
1120 | moveli r27, <_GLOBAL_OFFSET_TABLE_ - 1b> | |
aa137e4d NC |
1121 | } |
1122 | { | |
07d6d2b8 AM |
1123 | shl16insli r29, zero, MY_PLT_INDEX |
1124 | ld r28, r28 | |
aa137e4d NC |
1125 | } |
1126 | { | |
07d6d2b8 AM |
1127 | add r27, r26, r27 |
1128 | jr r28 | |
aa137e4d | 1129 | } |
07d6d2b8 | 1130 | info 10 ## SP not offset, return PC in LR |
aa137e4d NC |
1131 | |
1132 | For the purpose of backtracing, the procedure linkage table ends with the | |
1133 | following tail entry: | |
1134 | ||
07d6d2b8 | 1135 | info 10 ## SP not offset, return PC in LR |
aa137e4d NC |
1136 | |
1137 | The 32-bit versions are similar, with ld4s replacing ld, and offsets into | |
1138 | the GOT being multiples of 4 instead of 8. | |
1139 | ||
1140 | */ | |
1141 | ||
1142 | #define PLT_HEADER_SIZE_IN_BUNDLES 3 | |
1143 | #define PLT_ENTRY_SIZE_IN_BUNDLES 5 | |
1144 | #define PLT_TAIL_SIZE_IN_BUNDLES 1 | |
1145 | ||
1146 | #define PLT_HEADER_SIZE \ | |
1147 | (PLT_HEADER_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES) | |
1148 | #define PLT_ENTRY_SIZE \ | |
1149 | (PLT_ENTRY_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES) | |
1150 | #define PLT_TAIL_SIZE \ | |
1151 | (PLT_TAIL_SIZE_IN_BUNDLES * TILEGX_BUNDLE_SIZE_IN_BYTES) | |
1152 | ||
1153 | #define GOT_ENTRY_SIZE(htab) TILEGX_ELF_WORD_BYTES (htab) | |
1154 | ||
1155 | #define GOTPLT_HEADER_SIZE(htab) (2 * GOT_ENTRY_SIZE (htab)) | |
1156 | ||
1157 | static const bfd_byte | |
1158 | tilegx64_plt0_entry[PLT_HEADER_SIZE] = | |
1159 | { | |
1160 | 0x00, 0x30, 0x48, 0x51, | |
1161 | 0x6e, 0x43, 0xa0, 0x18, /* { ld_add r28, r27, 8 } */ | |
1162 | 0x00, 0x30, 0xbc, 0x35, | |
1163 | 0x00, 0x40, 0xde, 0x9e, /* { ld r27, r27 } */ | |
1164 | 0xff, 0xaf, 0x30, 0x40, | |
1165 | 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */ | |
1166 | }; | |
1167 | ||
1168 | static const bfd_byte | |
1169 | tilegx64_long_plt_entry[PLT_ENTRY_SIZE] = | |
1170 | { | |
1171 | 0xdc, 0x0f, 0x00, 0x10, | |
1172 | 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */ | |
1173 | 0xdb, 0x0f, 0x00, 0x10, | |
1174 | 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */ | |
1175 | 0x9c, 0xc6, 0x0d, 0xd0, | |
1176 | 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */ | |
1177 | 0x9b, 0xb6, 0xc5, 0xad, | |
1178 | 0xff, 0x57, 0xe0, 0x8e, /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */ | |
1179 | 0xdd, 0x0f, 0x00, 0x70, | |
1180 | 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */ | |
1181 | }; | |
1182 | ||
1183 | static const bfd_byte | |
1184 | tilegx64_short_plt_entry[PLT_ENTRY_SIZE] = | |
1185 | { | |
1186 | 0x00, 0x30, 0x48, 0x51, | |
1187 | 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */ | |
1188 | 0x9c, 0x06, 0x00, 0x90, | |
1189 | 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */ | |
1190 | 0xdd, 0x0f, 0x00, 0x70, | |
1191 | 0x8e, 0xeb, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld r28, r28 } */ | |
1192 | 0x9b, 0xb6, 0x0d, 0x50, | |
1193 | 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */ | |
1194 | 0x00, 0x30, 0x48, 0xd1, | |
1195 | 0xff, 0x57, 0x18, 0x18, /* { info 10 } */ | |
1196 | }; | |
1197 | ||
1198 | /* Reuse an existing info 10 bundle. */ | |
0e4894b9 | 1199 | static const bfd_byte *const tilegx64_plt_tail_entry = |
aa137e4d NC |
1200 | &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES]; |
1201 | ||
1202 | static const bfd_byte | |
1203 | tilegx32_plt0_entry[PLT_HEADER_SIZE] = | |
1204 | { | |
1205 | 0x00, 0x30, 0x48, 0x51, | |
1206 | 0x6e, 0x23, 0x58, 0x18, /* { ld4s_add r28, r27, 4 } */ | |
1207 | 0x00, 0x30, 0xbc, 0x35, | |
1208 | 0x00, 0x40, 0xde, 0x9c, /* { ld4s r27, r27 } */ | |
1209 | 0xff, 0xaf, 0x30, 0x40, | |
1210 | 0x60, 0x73, 0x6a, 0x28, /* { info 10 ; jr r27 } */ | |
1211 | }; | |
1212 | ||
1213 | static const bfd_byte | |
1214 | tilegx32_long_plt_entry[PLT_ENTRY_SIZE] = | |
1215 | { | |
1216 | 0xdc, 0x0f, 0x00, 0x10, | |
1217 | 0x0d, 0xf0, 0x6a, 0x28, /* { moveli r28, 0 ; lnk r26 } */ | |
1218 | 0xdb, 0x0f, 0x00, 0x10, | |
1219 | 0x8e, 0x03, 0x00, 0x38, /* { moveli r27, 0 ; shl16insli r28, r28, 0 } */ | |
1220 | 0x9c, 0xc6, 0x0d, 0xd0, | |
1221 | 0x6d, 0x03, 0x00, 0x38, /* { add r28, r26, r28 ; shl16insli r27, r27, 0 } */ | |
1222 | 0x9b, 0xb6, 0xc5, 0xad, | |
1223 | 0xff, 0x57, 0xe0, 0x8c, /* { add r27, r26, r27 ; info 10 ; ld4s r28, r28 } */ | |
1224 | 0xdd, 0x0f, 0x00, 0x70, | |
1225 | 0x80, 0x73, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; jr r28 } */ | |
1226 | }; | |
1227 | ||
1228 | static const bfd_byte | |
1229 | tilegx32_short_plt_entry[PLT_ENTRY_SIZE] = | |
1230 | { | |
1231 | 0x00, 0x30, 0x48, 0x51, | |
1232 | 0x0d, 0xf0, 0x6a, 0x28, /* { lnk r26 } */ | |
1233 | 0x9c, 0x06, 0x00, 0x90, | |
1234 | 0xed, 0x07, 0x00, 0x00, /* { addli r28, r26, 0 ; moveli r27, 0 } */ | |
1235 | 0xdd, 0x0f, 0x00, 0x70, | |
1236 | 0x8e, 0x9b, 0x6a, 0x28, /* { shl16insli r29, zero, 0 ; ld4s r28, r28 } */ | |
1237 | 0x9b, 0xb6, 0x0d, 0x50, | |
1238 | 0x80, 0x73, 0x6a, 0x28, /* { add r27, r26, r27 ; jr r28 } */ | |
1239 | 0x00, 0x30, 0x48, 0xd1, | |
1240 | 0xff, 0x57, 0x18, 0x18, /* { info 10 } */ | |
1241 | }; | |
1242 | ||
1243 | /* Reuse an existing info 10 bundle. */ | |
0e4894b9 | 1244 | static const bfd_byte *const tilegx32_plt_tail_entry = |
aa137e4d NC |
1245 | &tilegx64_short_plt_entry[4 * TILEGX_BUNDLE_SIZE_IN_BYTES]; |
1246 | ||
1247 | static int | |
1248 | tilegx_plt_entry_build (bfd *output_bfd, | |
1249 | struct tilegx_elf_link_hash_table *htab, | |
1250 | asection *splt, asection *sgotplt, | |
1251 | bfd_vma offset, bfd_vma *r_offset) | |
1252 | { | |
1253 | int plt_index = (offset - PLT_HEADER_SIZE) / PLT_ENTRY_SIZE; | |
1254 | int got_offset = (plt_index * GOT_ENTRY_SIZE (htab) | |
1255 | + GOTPLT_HEADER_SIZE (htab)); | |
1256 | tilegx_bundle_bits *pc; | |
1257 | ||
1258 | /* Compute the distance from the got entry to the lnk. */ | |
1259 | bfd_signed_vma dist_got_entry = sgotplt->output_section->vma | |
1260 | + sgotplt->output_offset | |
1261 | + got_offset | |
1262 | - splt->output_section->vma | |
1263 | - splt->output_offset | |
1264 | - offset | |
1265 | - TILEGX_BUNDLE_SIZE_IN_BYTES; | |
1266 | ||
1267 | /* Compute the distance to GOTPLT[0]. */ | |
1268 | bfd_signed_vma dist_got0 = dist_got_entry - got_offset; | |
1269 | ||
1270 | /* Check whether we can use the short plt entry with 16-bit offset. */ | |
1271 | bfd_boolean short_plt_entry = | |
1272 | (dist_got_entry <= 0x7fff && dist_got0 >= -0x8000); | |
1273 | ||
1274 | const tilegx_bundle_bits *plt_entry = (tilegx_bundle_bits *) | |
1275 | (ABI_64_P (output_bfd) ? | |
1276 | (short_plt_entry ? tilegx64_short_plt_entry : tilegx64_long_plt_entry) : | |
1277 | (short_plt_entry ? tilegx32_short_plt_entry : tilegx32_long_plt_entry)); | |
1278 | ||
1279 | /* Copy the plt entry template. */ | |
1280 | memcpy (splt->contents + offset, plt_entry, PLT_ENTRY_SIZE); | |
1281 | ||
1282 | /* Write the immediate offsets. */ | |
1283 | pc = (tilegx_bundle_bits *)(splt->contents + offset); | |
1284 | ||
1285 | if (short_plt_entry) | |
1286 | { | |
1287 | /* { lnk r28 } */ | |
1288 | pc++; | |
1289 | ||
1290 | /* { addli r28, r28, &GOTPLT[MY_GOT_INDEX] ; moveli r27, &GOTPLT[0] } */ | |
1291 | *pc++ |= create_Imm16_X0 (dist_got_entry) | |
1292 | | create_Imm16_X1 (dist_got0); | |
1293 | ||
1294 | /* { shl16insli r29, zero, MY_PLT_INDEX ; ld r28, r28 } */ | |
1295 | *pc++ |= create_Imm16_X0 (plt_index); | |
1296 | } | |
1297 | else | |
1298 | { | |
1299 | /* { moveli r28, &GOTPLT[MY_GOT_INDEX] ; lnk r26 } */ | |
1300 | *pc++ |= create_Imm16_X0 (dist_got_entry >> 16); | |
1301 | ||
1302 | /* { moveli r27, &GOTPLT[0] ; | |
1303 | shl16insli r28, r28, &GOTPLT[MY_GOT_INDEX] } */ | |
1304 | *pc++ |= create_Imm16_X0 (dist_got0 >> 16) | |
1305 | | create_Imm16_X1 (dist_got_entry); | |
1306 | ||
1307 | /* { add r28, r26, r28 ; shl16insli r27, r27, &GOTPLT[0] } */ | |
1308 | *pc++ |= create_Imm16_X1 (dist_got0); | |
1309 | ||
1310 | /* { add r27, r26, r27 ; info 10 ; ld r28, r28 } */ | |
1311 | pc++; | |
1312 | ||
1313 | /* { shl16insli r29, zero, MY_GOT_INDEX ; jr r28 } */ | |
1314 | *pc++ |= create_Imm16_X0 (plt_index); | |
1315 | } | |
1316 | ||
1317 | /* Set the relocation offset. */ | |
1318 | *r_offset = got_offset; | |
1319 | ||
1320 | return plt_index; | |
1321 | } | |
1322 | ||
1323 | /* Create an entry in an TILEGX ELF linker hash table. */ | |
1324 | ||
1325 | static struct bfd_hash_entry * | |
1326 | link_hash_newfunc (struct bfd_hash_entry *entry, | |
1327 | struct bfd_hash_table *table, const char *string) | |
1328 | { | |
1329 | /* Allocate the structure if it has not already been allocated by a | |
1330 | subclass. */ | |
1331 | if (entry == NULL) | |
1332 | { | |
1333 | entry = | |
07d6d2b8 AM |
1334 | bfd_hash_allocate (table, |
1335 | sizeof (struct tilegx_elf_link_hash_entry)); | |
aa137e4d NC |
1336 | if (entry == NULL) |
1337 | return entry; | |
1338 | } | |
1339 | ||
1340 | /* Call the allocation method of the superclass. */ | |
1341 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
1342 | if (entry != NULL) | |
1343 | { | |
1344 | struct tilegx_elf_link_hash_entry *eh; | |
1345 | ||
1346 | eh = (struct tilegx_elf_link_hash_entry *) entry; | |
1347 | eh->dyn_relocs = NULL; | |
1348 | eh->tls_type = GOT_UNKNOWN; | |
1349 | } | |
1350 | ||
1351 | return entry; | |
1352 | } | |
1353 | ||
1354 | /* Create a TILEGX ELF linker hash table. */ | |
1355 | ||
1356 | struct bfd_link_hash_table * | |
1357 | tilegx_elf_link_hash_table_create (bfd *abfd) | |
1358 | { | |
1359 | struct tilegx_elf_link_hash_table *ret; | |
1360 | bfd_size_type amt = sizeof (struct tilegx_elf_link_hash_table); | |
1361 | ||
1362 | ret = (struct tilegx_elf_link_hash_table *) bfd_zmalloc (amt); | |
1363 | if (ret == NULL) | |
1364 | return NULL; | |
1365 | ||
1366 | #ifdef BFD64 | |
1367 | if (ABI_64_P (abfd)) | |
1368 | { | |
1369 | ret->bytes_per_word = 8; | |
1370 | ret->word_align_power = 3; | |
1371 | ret->bytes_per_rela = sizeof (Elf64_External_Rela); | |
1372 | ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF64; | |
1373 | ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD64; | |
1374 | ret->tpoff_reloc = R_TILEGX_TLS_TPOFF64; | |
1375 | ret->r_info = tilegx_elf_r_info_64; | |
1376 | ret->r_symndx = tilegx_elf_r_symndx_64; | |
1377 | ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER; | |
1378 | ret->put_word = tilegx_put_word_64; | |
1379 | } | |
1380 | else | |
1381 | #endif | |
1382 | { | |
1383 | ret->bytes_per_word = 4; | |
1384 | ret->word_align_power = 2; | |
1385 | ret->bytes_per_rela = sizeof (Elf32_External_Rela); | |
1386 | ret->dtpoff_reloc = R_TILEGX_TLS_DTPOFF32; | |
1387 | ret->dtpmod_reloc = R_TILEGX_TLS_DTPMOD32; | |
1388 | ret->tpoff_reloc = R_TILEGX_TLS_TPOFF32; | |
1389 | ret->r_info = tilegx_elf_r_info_32; | |
1390 | ret->r_symndx = tilegx_elf_r_symndx_32; | |
1391 | ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER; | |
1392 | ret->put_word = tilegx_put_word_32; | |
1393 | } | |
1394 | ||
1395 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc, | |
1396 | sizeof (struct tilegx_elf_link_hash_entry), | |
1397 | TILEGX_ELF_DATA)) | |
1398 | { | |
1399 | free (ret); | |
1400 | return NULL; | |
1401 | } | |
1402 | ||
1403 | return &ret->elf.root; | |
1404 | } | |
1405 | ||
1406 | /* Create the .got section. */ | |
1407 | ||
1408 | static bfd_boolean | |
1409 | tilegx_elf_create_got_section (bfd *abfd, struct bfd_link_info *info) | |
1410 | { | |
1411 | flagword flags; | |
1412 | asection *s, *s_got; | |
1413 | struct elf_link_hash_entry *h; | |
1414 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
1415 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
1416 | ||
1417 | /* This function may be called more than once. */ | |
ce558b89 | 1418 | if (htab->sgot != NULL) |
aa137e4d NC |
1419 | return TRUE; |
1420 | ||
1421 | flags = bed->dynamic_sec_flags; | |
1422 | ||
3d4d4302 AM |
1423 | s = bfd_make_section_anyway_with_flags (abfd, |
1424 | (bed->rela_plts_and_copies_p | |
1425 | ? ".rela.got" : ".rel.got"), | |
1426 | (bed->dynamic_sec_flags | |
1427 | | SEC_READONLY)); | |
aa137e4d NC |
1428 | if (s == NULL |
1429 | || ! bfd_set_section_alignment (abfd, s, bed->s->log_file_align)) | |
1430 | return FALSE; | |
1431 | htab->srelgot = s; | |
1432 | ||
3d4d4302 | 1433 | s = s_got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
aa137e4d NC |
1434 | if (s == NULL |
1435 | || !bfd_set_section_alignment (abfd, s, bed->s->log_file_align)) | |
1436 | return FALSE; | |
1437 | htab->sgot = s; | |
1438 | ||
1439 | /* The first bit of the global offset table is the header. */ | |
1440 | s->size += bed->got_header_size; | |
1441 | ||
1442 | if (bed->want_got_plt) | |
1443 | { | |
3d4d4302 | 1444 | s = bfd_make_section_anyway_with_flags (abfd, ".got.plt", flags); |
aa137e4d NC |
1445 | if (s == NULL |
1446 | || !bfd_set_section_alignment (abfd, s, | |
1447 | bed->s->log_file_align)) | |
1448 | return FALSE; | |
1449 | htab->sgotplt = s; | |
1450 | ||
1451 | /* Reserve room for the header. */ | |
1452 | s->size += GOTPLT_HEADER_SIZE (tilegx_elf_hash_table (info)); | |
1453 | } | |
1454 | ||
1455 | if (bed->want_got_sym) | |
1456 | { | |
1457 | /* Define the symbol _GLOBAL_OFFSET_TABLE_ at the start of the .got | |
1458 | section. We don't do this in the linker script because we don't want | |
1459 | to define the symbol if we are not creating a global offset | |
1460 | table. */ | |
1461 | h = _bfd_elf_define_linkage_sym (abfd, info, s_got, | |
1462 | "_GLOBAL_OFFSET_TABLE_"); | |
1463 | elf_hash_table (info)->hgot = h; | |
1464 | if (h == NULL) | |
1465 | return FALSE; | |
1466 | } | |
1467 | ||
1468 | return TRUE; | |
1469 | } | |
1470 | ||
1471 | /* Create .plt, .rela.plt, .got, .got.plt, .rela.got, .dynbss, and | |
1472 | .rela.bss sections in DYNOBJ, and set up shortcuts to them in our | |
1473 | hash table. */ | |
1474 | ||
1475 | bfd_boolean | |
1476 | tilegx_elf_create_dynamic_sections (bfd *dynobj, | |
1477 | struct bfd_link_info *info) | |
1478 | { | |
aa137e4d NC |
1479 | if (!tilegx_elf_create_got_section (dynobj, info)) |
1480 | return FALSE; | |
1481 | ||
9d19e4fd | 1482 | return _bfd_elf_create_dynamic_sections (dynobj, info); |
aa137e4d NC |
1483 | } |
1484 | ||
1485 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
1486 | ||
1487 | void | |
1488 | tilegx_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
1489 | struct elf_link_hash_entry *dir, | |
1490 | struct elf_link_hash_entry *ind) | |
1491 | { | |
1492 | struct tilegx_elf_link_hash_entry *edir, *eind; | |
1493 | ||
1494 | edir = (struct tilegx_elf_link_hash_entry *) dir; | |
1495 | eind = (struct tilegx_elf_link_hash_entry *) ind; | |
1496 | ||
1497 | if (eind->dyn_relocs != NULL) | |
1498 | { | |
1499 | if (edir->dyn_relocs != NULL) | |
1500 | { | |
3bf083ed AM |
1501 | struct elf_dyn_relocs **pp; |
1502 | struct elf_dyn_relocs *p; | |
aa137e4d NC |
1503 | |
1504 | /* Add reloc counts against the indirect sym to the direct sym | |
1505 | list. Merge any entries against the same section. */ | |
1506 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
1507 | { | |
3bf083ed | 1508 | struct elf_dyn_relocs *q; |
aa137e4d NC |
1509 | |
1510 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
1511 | if (q->sec == p->sec) | |
1512 | { | |
1513 | q->pc_count += p->pc_count; | |
1514 | q->count += p->count; | |
1515 | *pp = p->next; | |
1516 | break; | |
1517 | } | |
1518 | if (q == NULL) | |
1519 | pp = &p->next; | |
1520 | } | |
1521 | *pp = edir->dyn_relocs; | |
1522 | } | |
1523 | ||
1524 | edir->dyn_relocs = eind->dyn_relocs; | |
1525 | eind->dyn_relocs = NULL; | |
1526 | } | |
1527 | ||
1528 | if (ind->root.type == bfd_link_hash_indirect | |
1529 | && dir->got.refcount <= 0) | |
1530 | { | |
1531 | edir->tls_type = eind->tls_type; | |
1532 | eind->tls_type = GOT_UNKNOWN; | |
1533 | } | |
1534 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
1535 | } | |
1536 | ||
6f7be959 WL |
1537 | static int |
1538 | tilegx_tls_translate_to_le (int r_type) | |
1539 | { | |
1540 | switch (r_type) | |
1541 | { | |
1542 | case R_TILEGX_IMM16_X0_HW0_TLS_GD: | |
1543 | case R_TILEGX_IMM16_X0_HW0_TLS_IE: | |
1544 | return R_TILEGX_IMM16_X0_HW0_TLS_LE; | |
1545 | ||
1546 | case R_TILEGX_IMM16_X1_HW0_TLS_GD: | |
1547 | case R_TILEGX_IMM16_X1_HW0_TLS_IE: | |
1548 | return R_TILEGX_IMM16_X1_HW0_TLS_LE; | |
1549 | ||
1550 | case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: | |
1551 | case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: | |
1552 | return R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE; | |
1553 | ||
1554 | case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: | |
1555 | case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: | |
1556 | return R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE; | |
1557 | ||
1558 | case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: | |
1559 | case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: | |
1560 | return R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE; | |
1561 | ||
1562 | case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: | |
1563 | case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: | |
1564 | return R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE; | |
1565 | } | |
1566 | return r_type; | |
1567 | } | |
1568 | ||
1569 | static int | |
1570 | tilegx_tls_translate_to_ie (int r_type) | |
1571 | { | |
1572 | switch (r_type) | |
1573 | { | |
1574 | case R_TILEGX_IMM16_X0_HW0_TLS_GD: | |
1575 | case R_TILEGX_IMM16_X0_HW0_TLS_IE: | |
1576 | return R_TILEGX_IMM16_X0_HW0_TLS_IE; | |
1577 | ||
1578 | case R_TILEGX_IMM16_X1_HW0_TLS_GD: | |
1579 | case R_TILEGX_IMM16_X1_HW0_TLS_IE: | |
1580 | return R_TILEGX_IMM16_X1_HW0_TLS_IE; | |
1581 | ||
1582 | case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: | |
1583 | case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: | |
1584 | return R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE; | |
1585 | ||
1586 | case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: | |
1587 | case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: | |
1588 | return R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE; | |
1589 | ||
1590 | case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: | |
1591 | case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: | |
1592 | return R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE; | |
1593 | ||
1594 | case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: | |
1595 | case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: | |
1596 | return R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE; | |
1597 | } | |
1598 | return r_type; | |
1599 | } | |
1600 | ||
1601 | static int | |
1602 | tilegx_elf_tls_transition (struct bfd_link_info *info, int r_type, | |
1603 | int is_local, bfd_boolean disable_le_transition) | |
1604 | { | |
28095894 | 1605 | if (!bfd_link_executable (info)) |
6f7be959 WL |
1606 | return r_type; |
1607 | ||
1608 | if (is_local && !disable_le_transition) | |
1609 | return tilegx_tls_translate_to_le (r_type); | |
1610 | else | |
1611 | return tilegx_tls_translate_to_ie (r_type); | |
1612 | } | |
1613 | ||
aa137e4d NC |
1614 | /* Look through the relocs for a section during the first phase, and |
1615 | allocate space in the global offset table or procedure linkage | |
1616 | table. */ | |
1617 | ||
1618 | bfd_boolean | |
1619 | tilegx_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, | |
1620 | asection *sec, const Elf_Internal_Rela *relocs) | |
1621 | { | |
1622 | struct tilegx_elf_link_hash_table *htab; | |
1623 | Elf_Internal_Shdr *symtab_hdr; | |
1624 | struct elf_link_hash_entry **sym_hashes; | |
aa137e4d NC |
1625 | const Elf_Internal_Rela *rel; |
1626 | const Elf_Internal_Rela *rel_end; | |
1627 | asection *sreloc; | |
1628 | int num_relocs; | |
6f7be959 | 1629 | bfd_boolean has_tls_gd_or_ie = FALSE, has_tls_add = FALSE; |
aa137e4d | 1630 | |
0e1862bb | 1631 | if (bfd_link_relocatable (info)) |
aa137e4d NC |
1632 | return TRUE; |
1633 | ||
1634 | htab = tilegx_elf_hash_table (info); | |
1635 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1636 | sym_hashes = elf_sym_hashes (abfd); | |
aa137e4d NC |
1637 | |
1638 | sreloc = NULL; | |
1639 | ||
1640 | num_relocs = sec->reloc_count; | |
1641 | ||
1642 | BFD_ASSERT (is_tilegx_elf (abfd) || num_relocs == 0); | |
1643 | ||
1644 | if (htab->elf.dynobj == NULL) | |
1645 | htab->elf.dynobj = abfd; | |
1646 | ||
1647 | rel_end = relocs + num_relocs; | |
6f7be959 WL |
1648 | |
1649 | /* Check whether to do optimization to transform TLS GD/IE | |
1650 | referehces to TLS LE. We disable it if we're linking with old | |
1651 | TLS code sequences that do not support such optimization. Old | |
1652 | TLS code sequences have tls_gd_call/tls_ie_load relocations but | |
1653 | no tls_add relocations. */ | |
1654 | for (rel = relocs; rel < rel_end && !has_tls_add; rel++) | |
1655 | { | |
1656 | int r_type = TILEGX_ELF_R_TYPE (rel->r_info); | |
1657 | switch (r_type) | |
1658 | { | |
1659 | case R_TILEGX_TLS_GD_CALL: | |
1660 | case R_TILEGX_TLS_IE_LOAD: | |
1661 | has_tls_gd_or_ie = TRUE; | |
1662 | break; | |
1663 | case R_TILEGX_IMM8_X0_TLS_ADD: | |
1664 | case R_TILEGX_IMM8_Y0_TLS_ADD: | |
1665 | case R_TILEGX_IMM8_X1_TLS_ADD: | |
1666 | case R_TILEGX_IMM8_Y1_TLS_ADD: | |
1667 | has_tls_add = TRUE; | |
1668 | break; | |
1669 | } | |
1670 | } | |
1671 | ||
1672 | sec->sec_flg0 = (has_tls_gd_or_ie && !has_tls_add); | |
1673 | htab->disable_le_transition |= sec->sec_flg0; | |
1674 | ||
aa137e4d NC |
1675 | for (rel = relocs; rel < rel_end; rel++) |
1676 | { | |
1677 | unsigned int r_type; | |
d42c267e | 1678 | unsigned int r_symndx; |
aa137e4d NC |
1679 | struct elf_link_hash_entry *h; |
1680 | int tls_type; | |
1681 | ||
1682 | r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info); | |
1683 | r_type = TILEGX_ELF_R_TYPE (rel->r_info); | |
1684 | ||
1685 | if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr)) | |
1686 | { | |
695344c0 | 1687 | /* xgettext:c-format */ |
4eca0228 AM |
1688 | _bfd_error_handler (_("%B: bad symbol index: %d"), |
1689 | abfd, r_symndx); | |
aa137e4d NC |
1690 | return FALSE; |
1691 | } | |
1692 | ||
1693 | if (r_symndx < symtab_hdr->sh_info) | |
1694 | h = NULL; | |
1695 | else | |
1696 | { | |
1697 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1698 | while (h->root.type == bfd_link_hash_indirect | |
1699 | || h->root.type == bfd_link_hash_warning) | |
1700 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1701 | } | |
1702 | ||
6f7be959 WL |
1703 | r_type = tilegx_elf_tls_transition (info, r_type, h == NULL, |
1704 | sec->sec_flg0); | |
aa137e4d NC |
1705 | switch (r_type) |
1706 | { | |
6f7be959 WL |
1707 | case R_TILEGX_IMM16_X0_HW0_TLS_LE: |
1708 | case R_TILEGX_IMM16_X1_HW0_TLS_LE: | |
1709 | case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: | |
1710 | case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: | |
1711 | case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: | |
1712 | case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: | |
28095894 | 1713 | if (!bfd_link_executable (info)) |
6f7be959 WL |
1714 | goto r_tilegx_plt32; |
1715 | break; | |
1716 | ||
aa137e4d NC |
1717 | case R_TILEGX_IMM16_X0_HW0_TLS_GD: |
1718 | case R_TILEGX_IMM16_X1_HW0_TLS_GD: | |
aa137e4d NC |
1719 | case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: |
1720 | case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: | |
1721 | case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: | |
1722 | case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: | |
0e1862bb | 1723 | BFD_ASSERT (bfd_link_pic (info)); |
6f7be959 | 1724 | tls_type = GOT_TLS_GD; |
07d6d2b8 | 1725 | goto have_got_reference; |
aa137e4d NC |
1726 | |
1727 | case R_TILEGX_IMM16_X0_HW0_TLS_IE: | |
1728 | case R_TILEGX_IMM16_X1_HW0_TLS_IE: | |
aa137e4d NC |
1729 | case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: |
1730 | case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: | |
1731 | case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: | |
1732 | case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: | |
07d6d2b8 AM |
1733 | tls_type = GOT_TLS_IE; |
1734 | if (!bfd_link_executable (info)) | |
1735 | info->flags |= DF_STATIC_TLS; | |
1736 | goto have_got_reference; | |
aa137e4d NC |
1737 | |
1738 | case R_TILEGX_IMM16_X0_HW0_GOT: | |
1739 | case R_TILEGX_IMM16_X1_HW0_GOT: | |
aa137e4d NC |
1740 | case R_TILEGX_IMM16_X0_HW0_LAST_GOT: |
1741 | case R_TILEGX_IMM16_X1_HW0_LAST_GOT: | |
1742 | case R_TILEGX_IMM16_X0_HW1_LAST_GOT: | |
1743 | case R_TILEGX_IMM16_X1_HW1_LAST_GOT: | |
07d6d2b8 AM |
1744 | tls_type = GOT_NORMAL; |
1745 | /* Fall Through */ | |
aa137e4d | 1746 | |
07d6d2b8 | 1747 | have_got_reference: |
aa137e4d NC |
1748 | /* This symbol requires a global offset table entry. */ |
1749 | { | |
07d6d2b8 | 1750 | int old_tls_type; |
aa137e4d NC |
1751 | |
1752 | if (h != NULL) | |
1753 | { | |
1754 | h->got.refcount += 1; | |
1755 | old_tls_type = tilegx_elf_hash_entry(h)->tls_type; | |
1756 | } | |
1757 | else | |
1758 | { | |
1759 | bfd_signed_vma *local_got_refcounts; | |
1760 | ||
1761 | /* This is a global offset table entry for a local symbol. */ | |
1762 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1763 | if (local_got_refcounts == NULL) | |
1764 | { | |
1765 | bfd_size_type size; | |
1766 | ||
1767 | size = symtab_hdr->sh_info; | |
1768 | size *= (sizeof (bfd_signed_vma) + sizeof(char)); | |
1769 | local_got_refcounts = ((bfd_signed_vma *) | |
1770 | bfd_zalloc (abfd, size)); | |
1771 | if (local_got_refcounts == NULL) | |
1772 | return FALSE; | |
1773 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
07d6d2b8 AM |
1774 | _bfd_tilegx_elf_local_got_tls_type (abfd) |
1775 | = (char *) (local_got_refcounts + symtab_hdr->sh_info); | |
aa137e4d NC |
1776 | } |
1777 | local_got_refcounts[r_symndx] += 1; | |
07d6d2b8 AM |
1778 | old_tls_type = _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx]; |
1779 | } | |
1780 | ||
1781 | /* If a TLS symbol is accessed using IE at least once, | |
1782 | there is no point to use dynamic model for it. */ | |
1783 | if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN | |
1784 | && (old_tls_type != GOT_TLS_GD | |
1785 | || tls_type != GOT_TLS_IE)) | |
1786 | { | |
1787 | if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD) | |
1788 | tls_type = old_tls_type; | |
1789 | else | |
1790 | { | |
4eca0228 | 1791 | _bfd_error_handler |
695344c0 | 1792 | /* xgettext:c-format */ |
07d6d2b8 AM |
1793 | (_("%B: `%s' accessed both as normal and thread local symbol"), |
1794 | abfd, h ? h->root.root.string : "<local>"); | |
1795 | return FALSE; | |
1796 | } | |
1797 | } | |
1798 | ||
1799 | if (old_tls_type != tls_type) | |
1800 | { | |
1801 | if (h != NULL) | |
1802 | tilegx_elf_hash_entry (h)->tls_type = tls_type; | |
1803 | else | |
1804 | _bfd_tilegx_elf_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
aa137e4d NC |
1805 | } |
1806 | } | |
1807 | ||
1808 | if (htab->elf.sgot == NULL) | |
1809 | { | |
1810 | if (!tilegx_elf_create_got_section (htab->elf.dynobj, info)) | |
1811 | return FALSE; | |
1812 | } | |
1813 | break; | |
1814 | ||
6f7be959 | 1815 | case R_TILEGX_TLS_GD_CALL: |
28095894 | 1816 | if (!bfd_link_executable (info)) |
6f7be959 WL |
1817 | { |
1818 | /* These are basically R_TILEGX_JUMPOFF_X1_PLT relocs | |
1819 | against __tls_get_addr. */ | |
1820 | struct bfd_link_hash_entry *bh = NULL; | |
1821 | if (! _bfd_generic_link_add_one_symbol (info, abfd, | |
1822 | "__tls_get_addr", 0, | |
1823 | bfd_und_section_ptr, 0, | |
1824 | NULL, FALSE, FALSE, | |
1825 | &bh)) | |
1826 | return FALSE; | |
1827 | h = (struct elf_link_hash_entry *) bh; | |
1828 | } | |
1829 | else | |
1830 | break; | |
1831 | /* Fall through */ | |
1832 | ||
07d6d2b8 | 1833 | case R_TILEGX_JUMPOFF_X1_PLT: |
e5b95258 WL |
1834 | case R_TILEGX_IMM16_X0_HW0_PLT_PCREL: |
1835 | case R_TILEGX_IMM16_X1_HW0_PLT_PCREL: | |
1836 | case R_TILEGX_IMM16_X0_HW1_PLT_PCREL: | |
1837 | case R_TILEGX_IMM16_X1_HW1_PLT_PCREL: | |
1838 | case R_TILEGX_IMM16_X0_HW2_PLT_PCREL: | |
1839 | case R_TILEGX_IMM16_X1_HW2_PLT_PCREL: | |
1840 | case R_TILEGX_IMM16_X0_HW3_PLT_PCREL: | |
1841 | case R_TILEGX_IMM16_X1_HW3_PLT_PCREL: | |
1842 | case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL: | |
1843 | case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL: | |
1844 | case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL: | |
1845 | case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL: | |
1846 | case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL: | |
1847 | case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL: | |
aa137e4d NC |
1848 | /* This symbol requires a procedure linkage table entry. We |
1849 | actually build the entry in adjust_dynamic_symbol, | |
1850 | because this might be a case of linking PIC code without | |
1851 | linking in any dynamic objects, in which case we don't | |
1852 | need to generate a procedure linkage table after all. */ | |
1853 | ||
1854 | if (h != NULL) | |
07d6d2b8 AM |
1855 | { |
1856 | h->needs_plt = 1; | |
1857 | h->plt.refcount += 1; | |
1858 | } | |
aa137e4d NC |
1859 | break; |
1860 | ||
07d6d2b8 AM |
1861 | case R_TILEGX_64_PCREL: |
1862 | case R_TILEGX_32_PCREL: | |
1863 | case R_TILEGX_16_PCREL: | |
1864 | case R_TILEGX_8_PCREL: | |
aa137e4d NC |
1865 | case R_TILEGX_IMM16_X0_HW0_PCREL: |
1866 | case R_TILEGX_IMM16_X1_HW0_PCREL: | |
1867 | case R_TILEGX_IMM16_X0_HW1_PCREL: | |
1868 | case R_TILEGX_IMM16_X1_HW1_PCREL: | |
1869 | case R_TILEGX_IMM16_X0_HW2_PCREL: | |
1870 | case R_TILEGX_IMM16_X1_HW2_PCREL: | |
1871 | case R_TILEGX_IMM16_X0_HW3_PCREL: | |
1872 | case R_TILEGX_IMM16_X1_HW3_PCREL: | |
1873 | case R_TILEGX_IMM16_X0_HW0_LAST_PCREL: | |
1874 | case R_TILEGX_IMM16_X1_HW0_LAST_PCREL: | |
1875 | case R_TILEGX_IMM16_X0_HW1_LAST_PCREL: | |
1876 | case R_TILEGX_IMM16_X1_HW1_LAST_PCREL: | |
1877 | case R_TILEGX_IMM16_X0_HW2_LAST_PCREL: | |
1878 | case R_TILEGX_IMM16_X1_HW2_LAST_PCREL: | |
1879 | if (h != NULL) | |
1880 | h->non_got_ref = 1; | |
1881 | ||
1882 | if (h != NULL | |
1883 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1884 | break; | |
1885 | /* Fall through. */ | |
1886 | ||
07d6d2b8 AM |
1887 | case R_TILEGX_64: |
1888 | case R_TILEGX_32: | |
1889 | case R_TILEGX_16: | |
1890 | case R_TILEGX_8: | |
aa137e4d NC |
1891 | case R_TILEGX_HW0: |
1892 | case R_TILEGX_HW1: | |
1893 | case R_TILEGX_HW2: | |
1894 | case R_TILEGX_HW3: | |
1895 | case R_TILEGX_HW0_LAST: | |
1896 | case R_TILEGX_HW1_LAST: | |
1897 | case R_TILEGX_HW2_LAST: | |
07d6d2b8 AM |
1898 | case R_TILEGX_COPY: |
1899 | case R_TILEGX_GLOB_DAT: | |
1900 | case R_TILEGX_JMP_SLOT: | |
1901 | case R_TILEGX_RELATIVE: | |
1902 | case R_TILEGX_BROFF_X1: | |
1903 | case R_TILEGX_JUMPOFF_X1: | |
1904 | case R_TILEGX_IMM8_X0: | |
1905 | case R_TILEGX_IMM8_Y0: | |
1906 | case R_TILEGX_IMM8_X1: | |
1907 | case R_TILEGX_IMM8_Y1: | |
1908 | case R_TILEGX_DEST_IMM8_X1: | |
1909 | case R_TILEGX_MT_IMM14_X1: | |
1910 | case R_TILEGX_MF_IMM14_X1: | |
1911 | case R_TILEGX_MMSTART_X0: | |
1912 | case R_TILEGX_MMEND_X0: | |
1913 | case R_TILEGX_SHAMT_X0: | |
1914 | case R_TILEGX_SHAMT_X1: | |
1915 | case R_TILEGX_SHAMT_Y0: | |
1916 | case R_TILEGX_SHAMT_Y1: | |
aa137e4d NC |
1917 | case R_TILEGX_IMM16_X0_HW0: |
1918 | case R_TILEGX_IMM16_X1_HW0: | |
1919 | case R_TILEGX_IMM16_X0_HW1: | |
1920 | case R_TILEGX_IMM16_X1_HW1: | |
1921 | case R_TILEGX_IMM16_X0_HW2: | |
1922 | case R_TILEGX_IMM16_X1_HW2: | |
1923 | case R_TILEGX_IMM16_X0_HW3: | |
1924 | case R_TILEGX_IMM16_X1_HW3: | |
1925 | case R_TILEGX_IMM16_X0_HW0_LAST: | |
1926 | case R_TILEGX_IMM16_X1_HW0_LAST: | |
1927 | case R_TILEGX_IMM16_X0_HW1_LAST: | |
1928 | case R_TILEGX_IMM16_X1_HW1_LAST: | |
1929 | case R_TILEGX_IMM16_X0_HW2_LAST: | |
1930 | case R_TILEGX_IMM16_X1_HW2_LAST: | |
1931 | if (h != NULL) | |
6f7be959 | 1932 | h->non_got_ref = 1; |
aa137e4d | 1933 | |
6f7be959 | 1934 | r_tilegx_plt32: |
0e1862bb | 1935 | if (h != NULL && !bfd_link_pic (info)) |
6f7be959 WL |
1936 | { |
1937 | /* We may need a .plt entry if the function this reloc | |
1938 | refers to is in a shared lib. */ | |
1939 | h->plt.refcount += 1; | |
1940 | } | |
aa137e4d NC |
1941 | |
1942 | /* If we are creating a shared library, and this is a reloc | |
1943 | against a global symbol, or a non PC relative reloc | |
1944 | against a local symbol, then we need to copy the reloc | |
1945 | into the shared library. However, if we are linking with | |
1946 | -Bsymbolic, we do not need to copy a reloc against a | |
1947 | global symbol which is defined in an object we are | |
1948 | including in the link (i.e., DEF_REGULAR is set). At | |
1949 | this point we have not seen all the input files, so it is | |
1950 | possible that DEF_REGULAR is not set now but will be set | |
1951 | later (it is never cleared). In case of a weak definition, | |
1952 | DEF_REGULAR may be cleared later by a strong definition in | |
1953 | a shared library. We account for that possibility below by | |
1954 | storing information in the relocs_copied field of the hash | |
1955 | table entry. A similar situation occurs when creating | |
1956 | shared libraries and symbol visibility changes render the | |
1957 | symbol local. | |
1958 | ||
1959 | If on the other hand, we are creating an executable, we | |
1960 | may need to keep relocations for symbols satisfied by a | |
1961 | dynamic library if we manage to avoid copy relocs for the | |
1962 | symbol. */ | |
0e1862bb | 1963 | if ((bfd_link_pic (info) |
aa137e4d NC |
1964 | && (sec->flags & SEC_ALLOC) != 0 |
1965 | && (! tilegx_elf_howto_table[r_type].pc_relative | |
1966 | || (h != NULL | |
1967 | && (! info->symbolic | |
1968 | || h->root.type == bfd_link_hash_defweak | |
1969 | || !h->def_regular)))) | |
0e1862bb | 1970 | || (!bfd_link_pic (info) |
aa137e4d NC |
1971 | && (sec->flags & SEC_ALLOC) != 0 |
1972 | && h != NULL | |
1973 | && (h->root.type == bfd_link_hash_defweak | |
1974 | || !h->def_regular))) | |
1975 | { | |
3bf083ed AM |
1976 | struct elf_dyn_relocs *p; |
1977 | struct elf_dyn_relocs **head; | |
aa137e4d NC |
1978 | |
1979 | /* When creating a shared object, we must copy these | |
1980 | relocs into the output file. We create a reloc | |
1981 | section in dynobj and make room for the reloc. */ | |
1982 | if (sreloc == NULL) | |
1983 | { | |
1984 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
1985 | (sec, htab->elf.dynobj, htab->word_align_power, abfd, | |
1986 | /*rela?*/ TRUE); | |
1987 | ||
1988 | if (sreloc == NULL) | |
1989 | return FALSE; | |
1990 | } | |
1991 | ||
1992 | /* If this is a global symbol, we count the number of | |
1993 | relocations we need for this symbol. */ | |
1994 | if (h != NULL) | |
1995 | head = | |
07d6d2b8 | 1996 | &((struct tilegx_elf_link_hash_entry *) h)->dyn_relocs; |
aa137e4d NC |
1997 | else |
1998 | { | |
1999 | /* Track dynamic relocs needed for local syms too. | |
2000 | We really need local syms available to do this | |
2001 | easily. Oh well. */ | |
2002 | ||
2003 | asection *s; | |
2004 | void *vpp; | |
2005 | Elf_Internal_Sym *isym; | |
2006 | ||
2007 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
2008 | abfd, r_symndx); | |
2009 | if (isym == NULL) | |
2010 | return FALSE; | |
2011 | ||
2012 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
2013 | if (s == NULL) | |
2014 | s = sec; | |
2015 | ||
2016 | vpp = &elf_section_data (s)->local_dynrel; | |
3bf083ed | 2017 | head = (struct elf_dyn_relocs **) vpp; |
aa137e4d NC |
2018 | } |
2019 | ||
2020 | p = *head; | |
2021 | if (p == NULL || p->sec != sec) | |
2022 | { | |
2023 | bfd_size_type amt = sizeof *p; | |
3bf083ed | 2024 | p = ((struct elf_dyn_relocs *) |
aa137e4d NC |
2025 | bfd_alloc (htab->elf.dynobj, amt)); |
2026 | if (p == NULL) | |
2027 | return FALSE; | |
2028 | p->next = *head; | |
2029 | *head = p; | |
2030 | p->sec = sec; | |
2031 | p->count = 0; | |
2032 | p->pc_count = 0; | |
2033 | } | |
2034 | ||
2035 | p->count += 1; | |
2036 | if (tilegx_elf_howto_table[r_type].pc_relative) | |
2037 | p->pc_count += 1; | |
2038 | } | |
2039 | ||
2040 | break; | |
2041 | ||
2042 | case R_TILEGX_GNU_VTINHERIT: | |
2043 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
2044 | return FALSE; | |
2045 | break; | |
2046 | ||
2047 | case R_TILEGX_GNU_VTENTRY: | |
2048 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
2049 | return FALSE; | |
2050 | break; | |
2051 | ||
2052 | default: | |
2053 | break; | |
2054 | } | |
2055 | } | |
2056 | ||
2057 | return TRUE; | |
2058 | } | |
2059 | ||
2060 | \f | |
2061 | asection * | |
2062 | tilegx_elf_gc_mark_hook (asection *sec, | |
2063 | struct bfd_link_info *info, | |
2064 | Elf_Internal_Rela *rel, | |
2065 | struct elf_link_hash_entry *h, | |
2066 | Elf_Internal_Sym *sym) | |
2067 | { | |
2068 | if (h != NULL) | |
2069 | { | |
2070 | switch (TILEGX_ELF_R_TYPE (rel->r_info)) | |
b45b6908 AM |
2071 | { |
2072 | case R_TILEGX_GNU_VTINHERIT: | |
2073 | case R_TILEGX_GNU_VTENTRY: | |
2074 | return NULL; | |
2075 | } | |
2076 | } | |
2077 | ||
2078 | /* FIXME: The test here, in check_relocs and in relocate_section | |
0e1862bb L |
2079 | dealing with TLS optimization, ought to be !bfd_link_executable (info). */ |
2080 | if (bfd_link_pic (info)) | |
b45b6908 | 2081 | { |
8e354058 L |
2082 | struct bfd_link_hash_entry *bh; |
2083 | ||
b45b6908 AM |
2084 | switch (TILEGX_ELF_R_TYPE (rel->r_info)) |
2085 | { | |
2086 | case R_TILEGX_TLS_GD_CALL: | |
2087 | /* This reloc implicitly references __tls_get_addr. We know | |
2088 | another reloc will reference the same symbol as the one | |
2089 | on this reloc, so the real symbol and section will be | |
2090 | gc marked when processing the other reloc. That lets | |
2091 | us handle __tls_get_addr here. */ | |
8e354058 L |
2092 | bh = NULL; |
2093 | if (! _bfd_generic_link_add_one_symbol (info, sec->owner, | |
2094 | "__tls_get_addr", 0, | |
2095 | bfd_und_section_ptr, | |
2096 | 0, NULL, FALSE, | |
2097 | FALSE, &bh)) | |
2098 | return NULL; | |
2099 | h = (struct elf_link_hash_entry *) bh; | |
b45b6908 AM |
2100 | BFD_ASSERT (h != NULL); |
2101 | h->mark = 1; | |
60d67dc8 AM |
2102 | if (h->is_weakalias) |
2103 | weakdef (h)->mark = 1; | |
b45b6908 AM |
2104 | sym = NULL; |
2105 | } | |
aa137e4d NC |
2106 | } |
2107 | ||
2108 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
2109 | } | |
2110 | ||
63c1f59d AM |
2111 | /* Find dynamic relocs for H that apply to read-only sections. */ |
2112 | ||
2113 | static asection * | |
2114 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
2115 | { | |
3bf083ed | 2116 | struct elf_dyn_relocs *p; |
63c1f59d AM |
2117 | |
2118 | for (p = tilegx_elf_hash_entry (h)->dyn_relocs; p != NULL; p = p->next) | |
2119 | { | |
2120 | asection *s = p->sec->output_section; | |
2121 | ||
2122 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2123 | return p->sec; | |
2124 | } | |
2125 | return NULL; | |
2126 | } | |
2127 | ||
aa137e4d NC |
2128 | /* Adjust a symbol defined by a dynamic object and referenced by a |
2129 | regular object. The current definition is in some section of the | |
2130 | dynamic object, but we're not including those sections. We have to | |
2131 | change the definition to something the rest of the link can | |
2132 | understand. */ | |
2133 | ||
2134 | bfd_boolean | |
2135 | tilegx_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
2136 | struct elf_link_hash_entry *h) | |
2137 | { | |
2138 | struct tilegx_elf_link_hash_table *htab; | |
aa137e4d | 2139 | bfd *dynobj; |
5474d94f | 2140 | asection *s, *srel; |
aa137e4d NC |
2141 | |
2142 | htab = tilegx_elf_hash_table (info); | |
2143 | BFD_ASSERT (htab != NULL); | |
2144 | ||
2145 | dynobj = htab->elf.dynobj; | |
2146 | ||
2147 | /* Make sure we know what is going on here. */ | |
2148 | BFD_ASSERT (dynobj != NULL | |
2149 | && (h->needs_plt | |
60d67dc8 | 2150 | || h->is_weakalias |
aa137e4d NC |
2151 | || (h->def_dynamic |
2152 | && h->ref_regular | |
2153 | && !h->def_regular))); | |
2154 | ||
2155 | /* If this is a function, put it in the procedure linkage table. We | |
2156 | will fill in the contents of the procedure linkage table later | |
2157 | (although we could actually do it here). */ | |
2158 | if (h->type == STT_FUNC || h->needs_plt) | |
2159 | { | |
2160 | if (h->plt.refcount <= 0 | |
2161 | || SYMBOL_CALLS_LOCAL (info, h) | |
2162 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
2163 | && h->root.type == bfd_link_hash_undefweak)) | |
2164 | { | |
2165 | /* This case can occur if we saw a R_TILEGX_JUMPOFF_X1_PLT | |
07d6d2b8 AM |
2166 | reloc in an input file, but the symbol was never referred |
2167 | to by a dynamic object, or if all references were garbage | |
2168 | collected. In such a case, we don't actually need to build | |
2169 | a procedure linkage table, and we can just do a | |
2170 | R_TILEGX_JUMPOFF_X1 relocation instead. */ | |
aa137e4d NC |
2171 | h->plt.offset = (bfd_vma) -1; |
2172 | h->needs_plt = 0; | |
2173 | } | |
2174 | ||
2175 | return TRUE; | |
2176 | } | |
2177 | else | |
2178 | h->plt.offset = (bfd_vma) -1; | |
2179 | ||
2180 | /* If this is a weak symbol, and there is a real definition, the | |
2181 | processor independent code will have arranged for us to see the | |
2182 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 2183 | if (h->is_weakalias) |
aa137e4d | 2184 | { |
60d67dc8 AM |
2185 | struct elf_link_hash_entry *def = weakdef (h); |
2186 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
2187 | h->root.u.def.section = def->root.u.def.section; | |
2188 | h->root.u.def.value = def->root.u.def.value; | |
aa137e4d NC |
2189 | return TRUE; |
2190 | } | |
2191 | ||
2192 | /* This is a reference to a symbol defined by a dynamic object which | |
2193 | is not a function. */ | |
2194 | ||
2195 | /* If we are creating a shared library, we must presume that the | |
2196 | only references to the symbol are via the global offset table. | |
2197 | For such cases we need not do anything here; the relocations will | |
2198 | be handled correctly by relocate_section. */ | |
0e1862bb | 2199 | if (bfd_link_pic (info)) |
aa137e4d NC |
2200 | return TRUE; |
2201 | ||
2202 | /* If there are no references to this symbol that do not use the | |
2203 | GOT, we don't need to generate a copy reloc. */ | |
2204 | if (!h->non_got_ref) | |
2205 | return TRUE; | |
2206 | ||
2207 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
2208 | if (info->nocopyreloc) | |
2209 | { | |
2210 | h->non_got_ref = 0; | |
2211 | return TRUE; | |
2212 | } | |
2213 | ||
3bf083ed | 2214 | /* If we don't find any dynamic relocs in read-only sections, then |
aa137e4d | 2215 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
3bf083ed | 2216 | if (!readonly_dynrelocs (h)) |
aa137e4d NC |
2217 | { |
2218 | h->non_got_ref = 0; | |
2219 | return TRUE; | |
2220 | } | |
2221 | ||
aa137e4d NC |
2222 | /* We must allocate the symbol in our .dynbss section, which will |
2223 | become part of the .bss section of the executable. There will be | |
2224 | an entry for this symbol in the .dynsym section. The dynamic | |
2225 | object will contain position independent code, so all references | |
2226 | from the dynamic object to this symbol will go through the global | |
2227 | offset table. The dynamic linker will use the .dynsym entry to | |
2228 | determine the address it must put in the global offset table, so | |
2229 | both the dynamic object and the regular object will refer to the | |
2230 | same memory location for the variable. */ | |
2231 | ||
2232 | /* We must generate a R_TILEGX_COPY reloc to tell the dynamic linker | |
2233 | to copy the initial value out of the dynamic object and into the | |
2234 | runtime process image. We need to remember the offset into the | |
2235 | .rel.bss section we are going to use. */ | |
5474d94f AM |
2236 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
2237 | { | |
2238 | s = htab->elf.sdynrelro; | |
2239 | srel = htab->elf.sreldynrelro; | |
2240 | } | |
2241 | else | |
2242 | { | |
2243 | s = htab->elf.sdynbss; | |
2244 | srel = htab->elf.srelbss; | |
2245 | } | |
1d7e9d18 | 2246 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
aa137e4d | 2247 | { |
5474d94f | 2248 | srel->size += TILEGX_ELF_RELA_BYTES (htab); |
aa137e4d NC |
2249 | h->needs_copy = 1; |
2250 | } | |
2251 | ||
5474d94f | 2252 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
aa137e4d NC |
2253 | } |
2254 | ||
2255 | /* Allocate space in .plt, .got and associated reloc sections for | |
2256 | dynamic relocs. */ | |
2257 | ||
2258 | static bfd_boolean | |
e4d34ace | 2259 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
aa137e4d NC |
2260 | { |
2261 | struct bfd_link_info *info; | |
2262 | struct tilegx_elf_link_hash_table *htab; | |
2263 | struct tilegx_elf_link_hash_entry *eh; | |
3bf083ed | 2264 | struct elf_dyn_relocs *p; |
aa137e4d NC |
2265 | |
2266 | if (h->root.type == bfd_link_hash_indirect) | |
2267 | return TRUE; | |
2268 | ||
aa137e4d NC |
2269 | info = (struct bfd_link_info *) inf; |
2270 | htab = tilegx_elf_hash_table (info); | |
2271 | BFD_ASSERT (htab != NULL); | |
2272 | ||
2273 | if (htab->elf.dynamic_sections_created | |
2274 | && h->plt.refcount > 0) | |
2275 | { | |
2276 | /* Make sure this symbol is output as a dynamic symbol. | |
2277 | Undefined weak syms won't yet be marked as dynamic. */ | |
2278 | if (h->dynindx == -1 | |
2279 | && !h->forced_local) | |
2280 | { | |
2281 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2282 | return FALSE; | |
2283 | } | |
2284 | ||
0e1862bb | 2285 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
aa137e4d NC |
2286 | { |
2287 | asection *s = htab->elf.splt; | |
2288 | ||
2289 | /* Allocate room for the header and tail. */ | |
2290 | if (s->size == 0) | |
2291 | { | |
663b5850 | 2292 | s->size = PLT_ENTRY_SIZE; |
aa137e4d NC |
2293 | } |
2294 | ||
07d6d2b8 | 2295 | h->plt.offset = s->size - PLT_ENTRY_SIZE + PLT_HEADER_SIZE; |
aa137e4d NC |
2296 | |
2297 | /* If this symbol is not defined in a regular file, and we are | |
2298 | not generating a shared library, then set the symbol to this | |
2299 | location in the .plt. This is required to make function | |
2300 | pointers compare as equal between the normal executable and | |
2301 | the shared library. */ | |
0e1862bb | 2302 | if (! bfd_link_pic (info) |
aa137e4d NC |
2303 | && !h->def_regular) |
2304 | { | |
2305 | h->root.u.def.section = s; | |
2306 | h->root.u.def.value = h->plt.offset; | |
2307 | } | |
2308 | ||
2309 | /* Make room for this entry. */ | |
2310 | s->size += PLT_ENTRY_SIZE; | |
2311 | ||
2312 | /* We also need to make an entry in the .got.plt section. */ | |
2313 | htab->elf.sgotplt->size += GOT_ENTRY_SIZE (htab); | |
2314 | ||
2315 | /* We also need to make an entry in the .rela.plt section. */ | |
2316 | htab->elf.srelplt->size += TILEGX_ELF_RELA_BYTES (htab); | |
2317 | } | |
2318 | else | |
2319 | { | |
2320 | h->plt.offset = (bfd_vma) -1; | |
2321 | h->needs_plt = 0; | |
2322 | } | |
2323 | } | |
2324 | else | |
2325 | { | |
2326 | h->plt.offset = (bfd_vma) -1; | |
2327 | h->needs_plt = 0; | |
2328 | } | |
2329 | ||
6f7be959 WL |
2330 | /* If a TLS_IE symbol is now local to the binary, make it a TLS_LE |
2331 | requiring no TLS entry. */ | |
2332 | if (h->got.refcount > 0 | |
2333 | && !htab->disable_le_transition | |
28095894 | 2334 | && bfd_link_executable (info) |
6f7be959 WL |
2335 | && h->dynindx == -1 |
2336 | && tilegx_elf_hash_entry(h)->tls_type == GOT_TLS_IE) | |
2337 | h->got.offset = (bfd_vma) -1; | |
2338 | else if (h->got.refcount > 0) | |
aa137e4d NC |
2339 | { |
2340 | asection *s; | |
2341 | bfd_boolean dyn; | |
2342 | int tls_type = tilegx_elf_hash_entry(h)->tls_type; | |
2343 | ||
2344 | /* Make sure this symbol is output as a dynamic symbol. | |
2345 | Undefined weak syms won't yet be marked as dynamic. */ | |
2346 | if (h->dynindx == -1 | |
2347 | && !h->forced_local) | |
2348 | { | |
2349 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2350 | return FALSE; | |
2351 | } | |
2352 | ||
2353 | s = htab->elf.sgot; | |
2354 | h->got.offset = s->size; | |
2355 | s->size += TILEGX_ELF_WORD_BYTES (htab); | |
2356 | /* TLS_GD entries need 2 consecutive GOT slots. */ | |
2357 | if (tls_type == GOT_TLS_GD) | |
07d6d2b8 | 2358 | s->size += TILEGX_ELF_WORD_BYTES (htab); |
aa137e4d NC |
2359 | dyn = htab->elf.dynamic_sections_created; |
2360 | /* TLS_IE needs one dynamic relocation, | |
07d6d2b8 | 2361 | TLS_GD needs two if local symbol and two if global. */ |
aa137e4d NC |
2362 | if (tls_type == GOT_TLS_GD || tls_type == GOT_TLS_IE) |
2363 | htab->elf.srelgot->size += 2 * TILEGX_ELF_RELA_BYTES (htab); | |
0e1862bb L |
2364 | else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
2365 | bfd_link_pic (info), | |
2366 | h)) | |
aa137e4d NC |
2367 | htab->elf.srelgot->size += TILEGX_ELF_RELA_BYTES (htab); |
2368 | } | |
2369 | else | |
2370 | h->got.offset = (bfd_vma) -1; | |
2371 | ||
2372 | eh = (struct tilegx_elf_link_hash_entry *) h; | |
2373 | if (eh->dyn_relocs == NULL) | |
2374 | return TRUE; | |
2375 | ||
2376 | /* In the shared -Bsymbolic case, discard space allocated for | |
2377 | dynamic pc-relative relocs against symbols which turn out to be | |
2378 | defined in regular objects. For the normal shared case, discard | |
2379 | space for pc-relative relocs that have become local due to symbol | |
2380 | visibility changes. */ | |
2381 | ||
0e1862bb | 2382 | if (bfd_link_pic (info)) |
aa137e4d NC |
2383 | { |
2384 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
2385 | { | |
3bf083ed | 2386 | struct elf_dyn_relocs **pp; |
aa137e4d NC |
2387 | |
2388 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
2389 | { | |
2390 | p->count -= p->pc_count; | |
2391 | p->pc_count = 0; | |
2392 | if (p->count == 0) | |
2393 | *pp = p->next; | |
2394 | else | |
2395 | pp = &p->next; | |
2396 | } | |
2397 | } | |
2398 | ||
2399 | /* Also discard relocs on undefined weak syms with non-default | |
2400 | visibility. */ | |
2401 | if (eh->dyn_relocs != NULL | |
2402 | && h->root.type == bfd_link_hash_undefweak) | |
2403 | { | |
a3cd202a L |
2404 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT |
2405 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) | |
aa137e4d NC |
2406 | eh->dyn_relocs = NULL; |
2407 | ||
2408 | /* Make sure undefined weak symbols are output as a dynamic | |
2409 | symbol in PIEs. */ | |
2410 | else if (h->dynindx == -1 | |
2411 | && !h->forced_local) | |
2412 | { | |
2413 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2414 | return FALSE; | |
2415 | } | |
2416 | } | |
2417 | } | |
2418 | else | |
2419 | { | |
2420 | /* For the non-shared case, discard space for relocs against | |
2421 | symbols which turn out to need copy relocs or are not | |
2422 | dynamic. */ | |
2423 | ||
2424 | if (!h->non_got_ref | |
2425 | && ((h->def_dynamic | |
2426 | && !h->def_regular) | |
2427 | || (htab->elf.dynamic_sections_created | |
2428 | && (h->root.type == bfd_link_hash_undefweak | |
2429 | || h->root.type == bfd_link_hash_undefined)))) | |
2430 | { | |
2431 | /* Make sure this symbol is output as a dynamic symbol. | |
2432 | Undefined weak syms won't yet be marked as dynamic. */ | |
2433 | if (h->dynindx == -1 | |
2434 | && !h->forced_local) | |
2435 | { | |
2436 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2437 | return FALSE; | |
2438 | } | |
2439 | ||
2440 | /* If that succeeded, we know we'll be keeping all the | |
2441 | relocs. */ | |
2442 | if (h->dynindx != -1) | |
2443 | goto keep; | |
2444 | } | |
2445 | ||
2446 | eh->dyn_relocs = NULL; | |
2447 | ||
2448 | keep: ; | |
2449 | } | |
2450 | ||
2451 | /* Finally, allocate space. */ | |
2452 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2453 | { | |
2454 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
2455 | sreloc->size += p->count * TILEGX_ELF_RELA_BYTES (htab); | |
2456 | } | |
2457 | ||
2458 | return TRUE; | |
2459 | } | |
2460 | ||
63c1f59d AM |
2461 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
2462 | read-only sections. */ | |
aa137e4d NC |
2463 | |
2464 | static bfd_boolean | |
63c1f59d | 2465 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p) |
aa137e4d | 2466 | { |
63c1f59d | 2467 | asection *sec; |
aa137e4d | 2468 | |
63c1f59d AM |
2469 | if (h->root.type == bfd_link_hash_indirect) |
2470 | return TRUE; | |
aa137e4d | 2471 | |
63c1f59d AM |
2472 | sec = readonly_dynrelocs (h); |
2473 | if (sec != NULL) | |
2474 | { | |
2475 | struct bfd_link_info *info = (struct bfd_link_info *) info_p; | |
aa137e4d | 2476 | |
63c1f59d AM |
2477 | info->flags |= DF_TEXTREL; |
2478 | info->callbacks->minfo | |
2479 | (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"), | |
2480 | sec->owner, h->root.root.string, sec); | |
007873f5 | 2481 | |
63c1f59d AM |
2482 | /* Not an error, just cut short the traversal. */ |
2483 | return FALSE; | |
aa137e4d NC |
2484 | } |
2485 | return TRUE; | |
2486 | } | |
2487 | ||
2488 | /* Return true if the dynamic symbol for a given section should be | |
2489 | omitted when creating a shared library. */ | |
2490 | ||
2491 | bfd_boolean | |
2492 | tilegx_elf_omit_section_dynsym (bfd *output_bfd, | |
2493 | struct bfd_link_info *info, | |
2494 | asection *p) | |
2495 | { | |
2496 | /* We keep the .got section symbol so that explicit relocations | |
2497 | against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode | |
2498 | can be turned into relocations against the .got symbol. */ | |
2499 | if (strcmp (p->name, ".got") == 0) | |
2500 | return FALSE; | |
2501 | ||
2502 | return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p); | |
2503 | } | |
2504 | ||
2505 | bfd_boolean | |
2506 | tilegx_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
2507 | struct bfd_link_info *info) | |
2508 | { | |
2509 | struct tilegx_elf_link_hash_table *htab; | |
2510 | bfd *dynobj; | |
2511 | asection *s; | |
2512 | bfd *ibfd; | |
2513 | ||
2514 | htab = tilegx_elf_hash_table (info); | |
2515 | BFD_ASSERT (htab != NULL); | |
2516 | dynobj = htab->elf.dynobj; | |
2517 | BFD_ASSERT (dynobj != NULL); | |
2518 | ||
2519 | if (elf_hash_table (info)->dynamic_sections_created) | |
2520 | { | |
2521 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 2522 | if (bfd_link_executable (info) && !info->nointerp) |
aa137e4d | 2523 | { |
3d4d4302 | 2524 | s = bfd_get_linker_section (dynobj, ".interp"); |
aa137e4d NC |
2525 | BFD_ASSERT (s != NULL); |
2526 | s->size = strlen (htab->dynamic_interpreter) + 1; | |
2527 | s->contents = (unsigned char *) htab->dynamic_interpreter; | |
2528 | } | |
2529 | } | |
2530 | ||
2531 | /* Set up .got offsets for local syms, and space for local dynamic | |
2532 | relocs. */ | |
c72f2fb2 | 2533 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
aa137e4d NC |
2534 | { |
2535 | bfd_signed_vma *local_got; | |
2536 | bfd_signed_vma *end_local_got; | |
2537 | char *local_tls_type; | |
2538 | bfd_size_type locsymcount; | |
2539 | Elf_Internal_Shdr *symtab_hdr; | |
2540 | asection *srel; | |
2541 | ||
2542 | if (! is_tilegx_elf (ibfd)) | |
2543 | continue; | |
2544 | ||
2545 | for (s = ibfd->sections; s != NULL; s = s->next) | |
2546 | { | |
3bf083ed | 2547 | struct elf_dyn_relocs *p; |
aa137e4d NC |
2548 | |
2549 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) | |
2550 | { | |
2551 | if (!bfd_is_abs_section (p->sec) | |
2552 | && bfd_is_abs_section (p->sec->output_section)) | |
2553 | { | |
2554 | /* Input section has been discarded, either because | |
2555 | it is a copy of a linkonce section or due to | |
2556 | linker script /DISCARD/, so we'll be discarding | |
2557 | the relocs too. */ | |
2558 | } | |
2559 | else if (p->count != 0) | |
2560 | { | |
2561 | srel = elf_section_data (p->sec)->sreloc; | |
2562 | srel->size += p->count * TILEGX_ELF_RELA_BYTES (htab); | |
2563 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
007873f5 L |
2564 | { |
2565 | info->flags |= DF_TEXTREL; | |
2566 | ||
2567 | info->callbacks->minfo (_("%B: dynamic relocation in read-only section `%A'\n"), | |
2568 | p->sec->owner, p->sec); | |
2569 | } | |
aa137e4d NC |
2570 | } |
2571 | } | |
2572 | } | |
2573 | ||
2574 | local_got = elf_local_got_refcounts (ibfd); | |
2575 | if (!local_got) | |
2576 | continue; | |
2577 | ||
2578 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
2579 | locsymcount = symtab_hdr->sh_info; | |
2580 | end_local_got = local_got + locsymcount; | |
2581 | local_tls_type = _bfd_tilegx_elf_local_got_tls_type (ibfd); | |
2582 | s = htab->elf.sgot; | |
2583 | srel = htab->elf.srelgot; | |
2584 | for (; local_got < end_local_got; ++local_got, ++local_tls_type) | |
2585 | { | |
2586 | if (*local_got > 0) | |
2587 | { | |
2588 | *local_got = s->size; | |
2589 | s->size += TILEGX_ELF_WORD_BYTES (htab); | |
07d6d2b8 AM |
2590 | if (*local_tls_type == GOT_TLS_GD) |
2591 | s->size += TILEGX_ELF_WORD_BYTES (htab); | |
2592 | if (bfd_link_pic (info) | |
2593 | || *local_tls_type == GOT_TLS_GD | |
2594 | || *local_tls_type == GOT_TLS_IE) | |
aa137e4d NC |
2595 | srel->size += TILEGX_ELF_RELA_BYTES (htab); |
2596 | } | |
2597 | else | |
2598 | *local_got = (bfd_vma) -1; | |
2599 | } | |
2600 | } | |
2601 | ||
2602 | /* Allocate global sym .plt and .got entries, and space for global | |
2603 | sym dynamic relocs. */ | |
e4d34ace | 2604 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
aa137e4d NC |
2605 | |
2606 | if (elf_hash_table (info)->dynamic_sections_created) | |
2607 | { | |
2608 | /* If the .got section is more than 0x8000 bytes, we add | |
2609 | 0x8000 to the value of _GLOBAL_OFFSET_TABLE_, so that 16 | |
2610 | bit relocations have a greater chance of working. */ | |
2611 | if (htab->elf.sgot->size >= 0x8000 | |
2612 | && elf_hash_table (info)->hgot->root.u.def.value == 0) | |
2613 | elf_hash_table (info)->hgot->root.u.def.value = 0x8000; | |
2614 | } | |
2615 | ||
2616 | if (htab->elf.sgotplt) | |
2617 | { | |
2618 | struct elf_link_hash_entry *got; | |
2619 | got = elf_link_hash_lookup (elf_hash_table (info), | |
2620 | "_GLOBAL_OFFSET_TABLE_", | |
2621 | FALSE, FALSE, FALSE); | |
2622 | ||
2623 | /* Don't allocate .got.plt section if there are no GOT nor PLT | |
07d6d2b8 | 2624 | entries and there is no refeence to _GLOBAL_OFFSET_TABLE_. */ |
aa137e4d NC |
2625 | if ((got == NULL |
2626 | || !got->ref_regular_nonweak) | |
2627 | && (htab->elf.sgotplt->size | |
2628 | == (unsigned)GOTPLT_HEADER_SIZE (htab)) | |
2629 | && (htab->elf.splt == NULL | |
2630 | || htab->elf.splt->size == 0) | |
2631 | && (htab->elf.sgot == NULL | |
2632 | || (htab->elf.sgot->size | |
2633 | == get_elf_backend_data (output_bfd)->got_header_size))) | |
2634 | htab->elf.sgotplt->size = 0; | |
2635 | } | |
2636 | ||
2637 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2638 | determined the sizes of the various dynamic sections. Allocate | |
2639 | memory for them. */ | |
2640 | for (s = dynobj->sections; s != NULL; s = s->next) | |
2641 | { | |
2642 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
2643 | continue; | |
2644 | ||
2645 | if (s == htab->elf.splt | |
2646 | || s == htab->elf.sgot | |
2647 | || s == htab->elf.sgotplt | |
5474d94f AM |
2648 | || s == htab->elf.sdynbss |
2649 | || s == htab->elf.sdynrelro) | |
aa137e4d NC |
2650 | { |
2651 | /* Strip this section if we don't need it; see the | |
2652 | comment below. */ | |
2653 | } | |
2654 | else if (strncmp (s->name, ".rela", 5) == 0) | |
2655 | { | |
2656 | if (s->size != 0) | |
2657 | { | |
2658 | /* We use the reloc_count field as a counter if we need | |
2659 | to copy relocs into the output file. */ | |
2660 | s->reloc_count = 0; | |
2661 | } | |
2662 | } | |
2663 | else | |
2664 | { | |
2665 | /* It's not one of our sections. */ | |
2666 | continue; | |
2667 | } | |
2668 | ||
2669 | if (s->size == 0) | |
2670 | { | |
2671 | /* If we don't need this section, strip it from the | |
2672 | output file. This is mostly to handle .rela.bss and | |
2673 | .rela.plt. We must create both sections in | |
2674 | create_dynamic_sections, because they must be created | |
2675 | before the linker maps input sections to output | |
2676 | sections. The linker does that before | |
2677 | adjust_dynamic_symbol is called, and it is that | |
2678 | function which decides whether anything needs to go | |
2679 | into these sections. */ | |
2680 | s->flags |= SEC_EXCLUDE; | |
2681 | continue; | |
2682 | } | |
2683 | ||
2684 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
2685 | continue; | |
2686 | ||
2687 | /* Allocate memory for the section contents. Zero the memory | |
2688 | for the benefit of .rela.plt, which has 4 unused entries | |
2689 | at the beginning, and we don't want garbage. */ | |
2690 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); | |
2691 | if (s->contents == NULL) | |
2692 | return FALSE; | |
2693 | } | |
2694 | ||
2695 | if (elf_hash_table (info)->dynamic_sections_created) | |
2696 | { | |
2697 | /* Add some entries to the .dynamic section. We fill in the | |
2698 | values later, in tilegx_elf_finish_dynamic_sections, but we | |
2699 | must add the entries now so that we get the correct size for | |
2700 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2701 | dynamic linker and used by the debugger. */ | |
2702 | #define add_dynamic_entry(TAG, VAL) \ | |
2703 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
2704 | ||
0e1862bb | 2705 | if (bfd_link_executable (info)) |
aa137e4d NC |
2706 | { |
2707 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
2708 | return FALSE; | |
2709 | } | |
2710 | ||
2711 | if (htab->elf.srelplt->size != 0) | |
2712 | { | |
2713 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
2714 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
2715 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2716 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
2717 | return FALSE; | |
2718 | } | |
2719 | ||
2720 | if (!add_dynamic_entry (DT_RELA, 0) | |
2721 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2722 | || !add_dynamic_entry (DT_RELAENT, TILEGX_ELF_RELA_BYTES (htab))) | |
2723 | return FALSE; | |
2724 | ||
2725 | /* If any dynamic relocs apply to a read-only section, | |
2726 | then we need a DT_TEXTREL entry. */ | |
2727 | if ((info->flags & DF_TEXTREL) == 0) | |
63c1f59d | 2728 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
aa137e4d NC |
2729 | |
2730 | if (info->flags & DF_TEXTREL) | |
2731 | { | |
2732 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
2733 | return FALSE; | |
2734 | } | |
2735 | } | |
2736 | #undef add_dynamic_entry | |
2737 | ||
2738 | return TRUE; | |
2739 | } | |
2740 | \f | |
2741 | /* Return the base VMA address which should be subtracted from real addresses | |
2742 | when resolving @dtpoff relocation. | |
2743 | This is PT_TLS segment p_vaddr. */ | |
2744 | ||
2745 | static bfd_vma | |
2746 | dtpoff_base (struct bfd_link_info *info) | |
2747 | { | |
2748 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
2749 | if (elf_hash_table (info)->tls_sec == NULL) | |
2750 | return 0; | |
2751 | return elf_hash_table (info)->tls_sec->vma; | |
2752 | } | |
2753 | ||
2754 | /* Return the relocation value for @tpoff relocation. */ | |
2755 | ||
2756 | static bfd_vma | |
2757 | tpoff (struct bfd_link_info *info, bfd_vma address) | |
2758 | { | |
2759 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
2760 | ||
2761 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
2762 | if (htab->tls_sec == NULL) | |
2763 | return 0; | |
2764 | ||
2765 | return (address - htab->tls_sec->vma); | |
2766 | } | |
2767 | ||
6f7be959 WL |
2768 | /* Copy SIZE bits from FROM to TO at address ADDR. */ |
2769 | ||
2770 | static void | |
2771 | tilegx_copy_bits (bfd_byte *addr, int from, int to, int size) | |
2772 | { | |
2773 | int i; | |
2774 | for (i = 0; i < size; i++) | |
2775 | { | |
2776 | int from_byte = (from + i) / 8; | |
2777 | int from_bit = (from + i) % 8; | |
2778 | int to_byte = (to + i) / 8; | |
2779 | int to_bit = (to + i) % 8; | |
2780 | bfd_byte to_mask = 1 << to_bit; | |
2781 | addr[to_byte] = (addr[to_byte] & ~to_mask) | |
2782 | | ((addr[from_byte] >> from_bit << to_bit) & to_mask); | |
2783 | } | |
2784 | } | |
2785 | ||
2786 | /* Replace the MASK bits in ADDR with those in INSN, for the next | |
2787 | TILEGX_BUNDLE_SIZE_IN_BYTES bytes. */ | |
2788 | ||
2789 | static void | |
2790 | tilegx_replace_insn (bfd_byte *addr, const bfd_byte *mask, | |
2791 | const bfd_byte *insn) | |
2792 | { | |
2793 | int i; | |
2794 | for (i = 0; i < TILEGX_BUNDLE_SIZE_IN_BYTES; i++) | |
2795 | { | |
2796 | addr[i] = (addr[i] & ~mask[i]) | (insn[i] & mask[i]); | |
2797 | } | |
2798 | } | |
2799 | ||
2800 | /* Mask to extract the bits corresponding to an instruction in a | |
2801 | specific pipe of a bundle. */ | |
2802 | static const bfd_byte insn_mask_X1[] = { | |
2803 | 0x00, 0x00, 0x00, 0x80, 0xff, 0xff, 0xff, 0x3f | |
2804 | }; | |
2805 | ||
2806 | /* Mask to extract the bits corresponding to an instruction in a | |
2807 | specific pipe of a bundle, minus the destination operand and the | |
2808 | first source operand. */ | |
68ffbac6 | 2809 | static const bfd_byte insn_mask_X0_no_dest_no_srca[] = { |
6f7be959 WL |
2810 | 0x00, 0xf0, 0xff, 0x7f, 0x00, 0x00, 0x00, 0x00 |
2811 | }; | |
2812 | ||
2813 | static const bfd_byte insn_mask_X1_no_dest_no_srca[] = { | |
2814 | 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0x3f | |
2815 | }; | |
2816 | ||
2817 | static const bfd_byte insn_mask_Y0_no_dest_no_srca[] = { | |
2818 | 0x00, 0xf0, 0x0f, 0x78, 0x00, 0x00, 0x00, 0x00 | |
2819 | }; | |
2820 | static const bfd_byte insn_mask_Y1_no_dest_no_srca[] = { | |
2821 | 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x07, 0x3c | |
2822 | }; | |
2823 | ||
2824 | /* Mask to extract the bits corresponding to an instruction in a | |
2825 | specific pipe of a bundle, minus the register operands. */ | |
2826 | static const bfd_byte insn_mask_X0_no_operand[] = { | |
2827 | 0x00, 0x00, 0xfc, 0x7f, 0x00, 0x00, 0x00, 0x00 | |
2828 | }; | |
2829 | ||
2830 | static const bfd_byte insn_mask_X1_no_operand[] = { | |
2831 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe, 0x3f | |
2832 | }; | |
2833 | ||
2834 | static const bfd_byte insn_mask_Y0_no_operand[] = { | |
2835 | 0x00, 0x00, 0x0c, 0x78, 0x00, 0x00, 0x00, 0x00 | |
2836 | }; | |
2837 | ||
2838 | static const bfd_byte insn_mask_Y1_no_operand[] = { | |
2839 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x3c | |
2840 | }; | |
2841 | ||
2842 | /* Various instructions synthesized to support tls references. */ | |
2843 | ||
2844 | /* ld r0, r0 in the X1 pipe, used for tls ie. */ | |
2845 | static const bfd_byte insn_tls_ie_ld_X1[] = { | |
2846 | 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x6a, 0x28 | |
2847 | }; | |
2848 | ||
2849 | /* ld4s r0, r0 in the X1 pipe, used for tls ie. */ | |
2850 | static const bfd_byte insn_tls_ie_ld4s_X1[] = { | |
2851 | 0x00, 0x00, 0x00, 0x00, 0x00, 0x98, 0x6a, 0x28 | |
2852 | }; | |
2853 | ||
2854 | /* add r0, r0, tp in various pipes, used for tls ie. */ | |
2855 | static const bfd_byte insn_tls_ie_add_X0X1[] = { | |
2856 | 0x00, 0x50, 0x0f, 0x50, 0x00, 0xa8, 0x07, 0x28 | |
2857 | }; | |
2858 | static const bfd_byte insn_tls_ie_add_Y0Y1[] = { | |
2859 | 0x00, 0x50, 0x27, 0x2c, 0x00, 0xa8, 0x13, 0x9a | |
2860 | }; | |
2861 | ||
2862 | /* addx r0, r0, tp in various pipes, used for tls ie. */ | |
2863 | static const bfd_byte insn_tls_ie_addx_X0X1[] = { | |
2864 | 0x00, 0x50, 0x0b, 0x50, 0x00, 0xa8, 0x05, 0x28 | |
2865 | }; | |
2866 | static const bfd_byte insn_tls_ie_addx_Y0Y1[] = { | |
2867 | 0x00, 0x50, 0x03, 0x2c, 0x00, 0xa8, 0x01, 0x9a | |
2868 | }; | |
2869 | ||
2870 | /* move r0, r0 in various pipes, used for tls gd. */ | |
2871 | static const bfd_byte insn_tls_gd_add_X0X1[] = { | |
2872 | 0x00, 0xf0, 0x07, 0x51, 0x00, 0xf8, 0x3b, 0x28 | |
2873 | }; | |
2874 | static const bfd_byte insn_tls_gd_add_Y0Y1[] = { | |
2875 | 0x00, 0xf0, 0x0b, 0x54, 0x00, 0xf8, 0x05, 0xae | |
2876 | }; | |
2877 | ||
2878 | static const bfd_byte *insn_move_X0X1 = insn_tls_gd_add_X0X1; | |
2879 | static const bfd_byte *insn_move_Y0Y1 = insn_tls_gd_add_Y0Y1; | |
2880 | ||
2881 | static const bfd_byte *insn_add_X0X1 = insn_tls_ie_add_X0X1; | |
2882 | static const bfd_byte *insn_add_Y0Y1 = insn_tls_ie_add_Y0Y1; | |
2883 | ||
2884 | static const bfd_byte *insn_addx_X0X1 = insn_tls_ie_addx_X0X1; | |
2885 | static const bfd_byte *insn_addx_Y0Y1 = insn_tls_ie_addx_Y0Y1; | |
2886 | ||
aa137e4d NC |
2887 | /* Relocate an TILEGX ELF section. |
2888 | ||
2889 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
2890 | to handle the relocations for a section. | |
2891 | ||
2892 | The relocs are always passed as Rela structures. | |
2893 | ||
2894 | This function is responsible for adjusting the section contents as | |
2895 | necessary, and (if generating a relocatable output file) adjusting | |
2896 | the reloc addend as necessary. | |
2897 | ||
2898 | This function does not have to worry about setting the reloc | |
2899 | address or the reloc symbol index. | |
2900 | ||
2901 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
2902 | ||
2903 | LOCAL_SECTIONS is an array giving the section in the input file | |
2904 | corresponding to the st_shndx field of each local symbol. | |
2905 | ||
2906 | The global hash table entry for the global symbols can be found | |
2907 | via elf_sym_hashes (input_bfd). | |
2908 | ||
2909 | When generating relocatable output, this function must handle | |
2910 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
2911 | going to be the section symbol corresponding to the output | |
2912 | section, which means that the addend must be adjusted | |
2913 | accordingly. */ | |
2914 | ||
2915 | bfd_boolean | |
2916 | tilegx_elf_relocate_section (bfd *output_bfd, struct bfd_link_info *info, | |
2917 | bfd *input_bfd, asection *input_section, | |
2918 | bfd_byte *contents, Elf_Internal_Rela *relocs, | |
2919 | Elf_Internal_Sym *local_syms, | |
2920 | asection **local_sections) | |
2921 | { | |
2922 | struct tilegx_elf_link_hash_table *htab; | |
2923 | Elf_Internal_Shdr *symtab_hdr; | |
2924 | struct elf_link_hash_entry **sym_hashes; | |
2925 | bfd_vma *local_got_offsets; | |
535127d2 | 2926 | bfd_vma got_base; |
aa137e4d NC |
2927 | asection *sreloc; |
2928 | Elf_Internal_Rela *rel; | |
2929 | Elf_Internal_Rela *relend; | |
2930 | int num_relocs; | |
2931 | ||
2932 | htab = tilegx_elf_hash_table (info); | |
2933 | BFD_ASSERT (htab != NULL); | |
2934 | symtab_hdr = &elf_symtab_hdr (input_bfd); | |
2935 | sym_hashes = elf_sym_hashes (input_bfd); | |
2936 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
2937 | ||
535127d2 WL |
2938 | if (elf_hash_table (info)->hgot == NULL) |
2939 | got_base = 0; | |
2940 | else | |
2941 | got_base = elf_hash_table (info)->hgot->root.u.def.value; | |
2942 | ||
aa137e4d NC |
2943 | sreloc = elf_section_data (input_section)->sreloc; |
2944 | ||
2945 | rel = relocs; | |
2946 | num_relocs = input_section->reloc_count; | |
2947 | relend = relocs + num_relocs; | |
2948 | for (; rel < relend; rel++) | |
2949 | { | |
2950 | int r_type, tls_type; | |
6f7be959 | 2951 | bfd_boolean is_tls_iele, is_tls_le; |
aa137e4d NC |
2952 | reloc_howto_type *howto; |
2953 | unsigned long r_symndx; | |
2954 | struct elf_link_hash_entry *h; | |
2955 | Elf_Internal_Sym *sym; | |
2956 | tilegx_create_func create_func; | |
2957 | asection *sec; | |
2958 | bfd_vma relocation; | |
2959 | bfd_reloc_status_type r; | |
2960 | const char *name; | |
2961 | bfd_vma off; | |
2962 | bfd_boolean is_plt = FALSE; | |
a3cd202a | 2963 | bfd_boolean resolved_to_zero; |
aa137e4d NC |
2964 | bfd_boolean unresolved_reloc; |
2965 | ||
2966 | r_type = TILEGX_ELF_R_TYPE (rel->r_info); | |
2967 | if (r_type == R_TILEGX_GNU_VTINHERIT | |
2968 | || r_type == R_TILEGX_GNU_VTENTRY) | |
2969 | continue; | |
2970 | ||
2971 | if ((unsigned int)r_type >= ARRAY_SIZE (tilegx_elf_howto_table)) | |
47aeb64c | 2972 | return _bfd_unrecognized_reloc (input_bfd, input_section, r_type); |
aa137e4d NC |
2973 | |
2974 | howto = tilegx_elf_howto_table + r_type; | |
2975 | ||
2976 | /* This is a final link. */ | |
2977 | r_symndx = TILEGX_ELF_R_SYMNDX (htab, rel->r_info); | |
2978 | h = NULL; | |
2979 | sym = NULL; | |
2980 | sec = NULL; | |
2981 | unresolved_reloc = FALSE; | |
2982 | if (r_symndx < symtab_hdr->sh_info) | |
2983 | { | |
2984 | sym = local_syms + r_symndx; | |
2985 | sec = local_sections[r_symndx]; | |
2986 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
2987 | } | |
2988 | else | |
2989 | { | |
62d887d4 L |
2990 | bfd_boolean warned ATTRIBUTE_UNUSED; |
2991 | bfd_boolean ignored ATTRIBUTE_UNUSED; | |
aa137e4d NC |
2992 | |
2993 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
2994 | r_symndx, symtab_hdr, sym_hashes, | |
2995 | h, sec, relocation, | |
62d887d4 | 2996 | unresolved_reloc, warned, ignored); |
aa137e4d NC |
2997 | if (warned) |
2998 | { | |
2999 | /* To avoid generating warning messages about truncated | |
3000 | relocations, set the relocation's address to be the same as | |
3001 | the start of this section. */ | |
3002 | if (input_section->output_section != NULL) | |
3003 | relocation = input_section->output_section->vma; | |
3004 | else | |
3005 | relocation = 0; | |
3006 | } | |
3007 | } | |
3008 | ||
dbaa2011 | 3009 | if (sec != NULL && discarded_section (sec)) |
aa137e4d | 3010 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 3011 | rel, 1, relend, howto, 0, contents); |
aa137e4d | 3012 | |
0e1862bb | 3013 | if (bfd_link_relocatable (info)) |
aa137e4d NC |
3014 | continue; |
3015 | ||
3016 | if (h != NULL) | |
3017 | name = h->root.root.string; | |
3018 | else | |
3019 | { | |
3020 | name = (bfd_elf_string_from_elf_section | |
3021 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
3022 | if (name == NULL || *name == '\0') | |
3023 | name = bfd_section_name (input_bfd, sec); | |
3024 | } | |
3025 | ||
6f7be959 WL |
3026 | switch (r_type) |
3027 | { | |
3028 | case R_TILEGX_TLS_GD_CALL: | |
3029 | case R_TILEGX_IMM8_X0_TLS_GD_ADD: | |
3030 | case R_TILEGX_IMM8_Y0_TLS_GD_ADD: | |
3031 | case R_TILEGX_IMM8_X1_TLS_GD_ADD: | |
3032 | case R_TILEGX_IMM8_Y1_TLS_GD_ADD: | |
3033 | case R_TILEGX_IMM8_X0_TLS_ADD: | |
3034 | case R_TILEGX_IMM8_Y0_TLS_ADD: | |
3035 | case R_TILEGX_IMM8_X1_TLS_ADD: | |
3036 | case R_TILEGX_IMM8_Y1_TLS_ADD: | |
3037 | tls_type = GOT_UNKNOWN; | |
3038 | if (h == NULL && local_got_offsets) | |
3039 | tls_type = | |
3040 | _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx]; | |
3041 | else if (h != NULL) | |
3042 | tls_type = tilegx_elf_hash_entry(h)->tls_type; | |
3043 | ||
28095894 | 3044 | is_tls_iele = (bfd_link_executable (info) || tls_type == GOT_TLS_IE); |
6f7be959 | 3045 | is_tls_le = is_tls_iele && (!input_section->sec_flg0 |
28095894 | 3046 | && bfd_link_executable (info) |
6f7be959 WL |
3047 | && (h == NULL || h->dynindx == -1)); |
3048 | ||
3049 | if (r_type == R_TILEGX_TLS_GD_CALL) | |
3050 | { | |
3051 | if (is_tls_le) | |
3052 | { | |
3053 | /* GD -> LE */ | |
3054 | tilegx_replace_insn (contents + rel->r_offset, | |
3055 | insn_mask_X1, insn_move_X0X1); | |
3056 | continue; | |
3057 | } | |
3058 | else if (is_tls_iele) | |
3059 | { | |
3060 | /* GD -> IE */ | |
3061 | if (ABI_64_P (output_bfd)) | |
3062 | tilegx_replace_insn (contents + rel->r_offset, | |
3063 | insn_mask_X1, insn_tls_ie_ld_X1); | |
3064 | else | |
3065 | tilegx_replace_insn (contents + rel->r_offset, | |
3066 | insn_mask_X1, insn_tls_ie_ld4s_X1); | |
3067 | continue; | |
3068 | } | |
3069 | ||
3070 | /* GD -> GD */ | |
3071 | h = (struct elf_link_hash_entry *) | |
3072 | bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE, | |
3073 | FALSE, TRUE); | |
3074 | BFD_ASSERT (h != NULL); | |
3075 | r_type = R_TILEGX_JUMPOFF_X1_PLT; | |
3076 | howto = tilegx_elf_howto_table + r_type; | |
3077 | } | |
3078 | else if (r_type == R_TILEGX_IMM8_X0_TLS_ADD | |
3079 | || r_type == R_TILEGX_IMM8_X1_TLS_ADD | |
3080 | || r_type == R_TILEGX_IMM8_Y0_TLS_ADD | |
3081 | || r_type == R_TILEGX_IMM8_Y1_TLS_ADD) | |
3082 | { | |
3083 | bfd_boolean is_pipe0 = | |
3084 | (r_type == R_TILEGX_IMM8_X0_TLS_ADD | |
3085 | || r_type == R_TILEGX_IMM8_Y0_TLS_ADD); | |
3086 | bfd_boolean is_X0X1 = | |
3087 | (r_type == R_TILEGX_IMM8_X0_TLS_ADD | |
3088 | || r_type == R_TILEGX_IMM8_X1_TLS_ADD); | |
3089 | int dest_begin = is_pipe0 ? 0 : 31; | |
3090 | int src_begin; | |
3091 | const bfd_byte *insn; | |
84abc003 | 3092 | const bfd_byte *mask = NULL; |
6f7be959 WL |
3093 | |
3094 | if (is_tls_le) | |
3095 | { | |
3096 | /* 1. copy dest operand into the first source operand. | |
3097 | 2. change the opcode to "move". */ | |
3098 | src_begin = is_pipe0 ? 6 : 37; | |
3099 | insn = is_X0X1 ? insn_move_X0X1 : insn_move_Y0Y1; | |
3100 | ||
3101 | switch (r_type) | |
3102 | { | |
3103 | case R_TILEGX_IMM8_X0_TLS_ADD: | |
3104 | mask = insn_mask_X0_no_dest_no_srca; | |
3105 | break; | |
3106 | case R_TILEGX_IMM8_X1_TLS_ADD: | |
3107 | mask = insn_mask_X1_no_dest_no_srca; | |
3108 | break; | |
3109 | case R_TILEGX_IMM8_Y0_TLS_ADD: | |
3110 | mask = insn_mask_Y0_no_dest_no_srca; | |
3111 | break; | |
3112 | case R_TILEGX_IMM8_Y1_TLS_ADD: | |
3113 | mask = insn_mask_Y1_no_dest_no_srca; | |
3114 | break; | |
3115 | } | |
3116 | } | |
3117 | else | |
3118 | { | |
3119 | /* 1. copy dest operand into the second source operand. | |
3120 | 2. change the opcode to "add". */ | |
3121 | src_begin = is_pipe0 ? 12 : 43; | |
3122 | if (ABI_64_P (output_bfd)) | |
3123 | insn = is_X0X1 ? insn_add_X0X1 : insn_add_Y0Y1; | |
3124 | else | |
3125 | insn = is_X0X1 ? insn_addx_X0X1 : insn_addx_Y0Y1; | |
3126 | ||
3127 | switch (r_type) | |
3128 | { | |
3129 | case R_TILEGX_IMM8_X0_TLS_ADD: | |
3130 | mask = insn_mask_X0_no_operand; | |
3131 | break; | |
3132 | case R_TILEGX_IMM8_X1_TLS_ADD: | |
3133 | mask = insn_mask_X1_no_operand; | |
3134 | break; | |
3135 | case R_TILEGX_IMM8_Y0_TLS_ADD: | |
3136 | mask = insn_mask_Y0_no_operand; | |
3137 | break; | |
3138 | case R_TILEGX_IMM8_Y1_TLS_ADD: | |
3139 | mask = insn_mask_Y1_no_operand; | |
3140 | break; | |
3141 | } | |
3142 | } | |
3143 | ||
3144 | tilegx_copy_bits (contents + rel->r_offset, dest_begin, | |
3145 | src_begin, 6); | |
3146 | tilegx_replace_insn (contents + rel->r_offset, mask, insn); | |
3147 | ||
3148 | continue; | |
3149 | } | |
3150 | else | |
3151 | { | |
3152 | const bfd_byte *mask = NULL; | |
3153 | const bfd_byte *add_insn = NULL; | |
3154 | bfd_boolean is_64bit = ABI_64_P (output_bfd); | |
3155 | ||
3156 | switch (r_type) | |
3157 | { | |
3158 | case R_TILEGX_IMM8_X0_TLS_GD_ADD: | |
3159 | add_insn = is_tls_iele | |
3160 | ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1) | |
3161 | : insn_tls_gd_add_X0X1; | |
3162 | mask = insn_mask_X0_no_dest_no_srca; | |
3163 | break; | |
3164 | case R_TILEGX_IMM8_X1_TLS_GD_ADD: | |
3165 | add_insn = is_tls_iele | |
3166 | ? (is_64bit ? insn_tls_ie_add_X0X1 : insn_tls_ie_addx_X0X1) | |
3167 | : insn_tls_gd_add_X0X1; | |
3168 | mask = insn_mask_X1_no_dest_no_srca; | |
3169 | break; | |
3170 | case R_TILEGX_IMM8_Y0_TLS_GD_ADD: | |
3171 | add_insn = is_tls_iele | |
3172 | ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1) | |
3173 | : insn_tls_gd_add_Y0Y1; | |
3174 | mask = insn_mask_Y0_no_dest_no_srca; | |
3175 | break; | |
3176 | case R_TILEGX_IMM8_Y1_TLS_GD_ADD: | |
3177 | add_insn = is_tls_iele | |
3178 | ? (is_64bit ? insn_tls_ie_add_Y0Y1 : insn_tls_ie_addx_Y0Y1) | |
3179 | : insn_tls_gd_add_Y0Y1; | |
3180 | mask = insn_mask_Y1_no_dest_no_srca; | |
3181 | break; | |
3182 | } | |
3183 | ||
3184 | tilegx_replace_insn (contents + rel->r_offset, mask, add_insn); | |
3185 | ||
3186 | continue; | |
3187 | } | |
3188 | break; | |
3189 | case R_TILEGX_TLS_IE_LOAD: | |
3190 | if (!input_section->sec_flg0 | |
28095894 | 3191 | && bfd_link_executable (info) |
6f7be959 WL |
3192 | && (h == NULL || h->dynindx == -1)) |
3193 | { | |
3194 | /* IE -> LE */ | |
3195 | tilegx_replace_insn (contents + rel->r_offset, | |
3196 | insn_mask_X1_no_dest_no_srca, | |
3197 | insn_move_X0X1); | |
3198 | } | |
3199 | else | |
3200 | { | |
3201 | /* IE -> IE */ | |
3202 | if (ABI_64_P (output_bfd)) | |
3203 | tilegx_replace_insn (contents + rel->r_offset, | |
3204 | insn_mask_X1_no_dest_no_srca, | |
3205 | insn_tls_ie_ld_X1); | |
3206 | else | |
3207 | tilegx_replace_insn (contents + rel->r_offset, | |
3208 | insn_mask_X1_no_dest_no_srca, | |
3209 | insn_tls_ie_ld4s_X1); | |
3210 | } | |
3211 | continue; | |
3212 | break; | |
3213 | default: | |
3214 | break; | |
3215 | } | |
3216 | ||
a3cd202a L |
3217 | resolved_to_zero = (h != NULL |
3218 | && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); | |
3219 | ||
aa137e4d NC |
3220 | switch (r_type) |
3221 | { | |
3222 | case R_TILEGX_IMM16_X0_HW0_GOT: | |
3223 | case R_TILEGX_IMM16_X1_HW0_GOT: | |
aa137e4d NC |
3224 | case R_TILEGX_IMM16_X0_HW0_LAST_GOT: |
3225 | case R_TILEGX_IMM16_X1_HW0_LAST_GOT: | |
3226 | case R_TILEGX_IMM16_X0_HW1_LAST_GOT: | |
3227 | case R_TILEGX_IMM16_X1_HW1_LAST_GOT: | |
aa137e4d NC |
3228 | /* Relocation is to the entry for this symbol in the global |
3229 | offset table. */ | |
3230 | if (htab->elf.sgot == NULL) | |
3231 | abort (); | |
3232 | ||
3233 | if (h != NULL) | |
3234 | { | |
3235 | bfd_boolean dyn; | |
3236 | ||
3237 | off = h->got.offset; | |
3238 | BFD_ASSERT (off != (bfd_vma) -1); | |
3239 | dyn = elf_hash_table (info)->dynamic_sections_created; | |
3240 | ||
0e1862bb L |
3241 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
3242 | bfd_link_pic (info), | |
3243 | h) | |
3244 | || (bfd_link_pic (info) | |
aa137e4d NC |
3245 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
3246 | { | |
3247 | /* This is actually a static link, or it is a | |
3248 | -Bsymbolic link and the symbol is defined | |
3249 | locally, or the symbol was forced to be local | |
3250 | because of a version file. We must initialize | |
3251 | this entry in the global offset table. Since the | |
3252 | offset must always be a multiple | |
3253 | of 8 for 64-bit, we use the least significant bit | |
3254 | to record whether we have initialized it already. | |
3255 | ||
3256 | When doing a dynamic link, we create a .rela.got | |
3257 | relocation entry to initialize the value. This | |
3258 | is done in the finish_dynamic_symbol routine. */ | |
3259 | if ((off & 1) != 0) | |
3260 | off &= ~1; | |
3261 | else | |
3262 | { | |
3263 | TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation, | |
3264 | htab->elf.sgot->contents + off); | |
3265 | h->got.offset |= 1; | |
3266 | } | |
3267 | } | |
3268 | else | |
3269 | unresolved_reloc = FALSE; | |
3270 | } | |
3271 | else | |
3272 | { | |
3273 | BFD_ASSERT (local_got_offsets != NULL | |
3274 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
3275 | ||
3276 | off = local_got_offsets[r_symndx]; | |
3277 | ||
3278 | /* The offset must always be a multiple of 8 on 64-bit. | |
07d6d2b8 | 3279 | We use the least significant bit to record |
aa137e4d NC |
3280 | whether we have already processed this entry. */ |
3281 | if ((off & 1) != 0) | |
3282 | off &= ~1; | |
3283 | else | |
3284 | { | |
0e1862bb | 3285 | if (bfd_link_pic (info)) |
aa137e4d NC |
3286 | { |
3287 | asection *s; | |
3288 | Elf_Internal_Rela outrel; | |
3289 | ||
3290 | /* We need to generate a R_TILEGX_RELATIVE reloc | |
3291 | for the dynamic linker. */ | |
3292 | s = htab->elf.srelgot; | |
3293 | BFD_ASSERT (s != NULL); | |
3294 | ||
3295 | outrel.r_offset = (htab->elf.sgot->output_section->vma | |
3296 | + htab->elf.sgot->output_offset | |
3297 | + off); | |
3298 | outrel.r_info = | |
3299 | TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE); | |
3300 | outrel.r_addend = relocation; | |
3301 | relocation = 0; | |
3302 | tilegx_elf_append_rela (output_bfd, s, &outrel); | |
3303 | } | |
3304 | ||
3305 | TILEGX_ELF_PUT_WORD (htab, output_bfd, relocation, | |
3306 | htab->elf.sgot->contents + off); | |
3307 | local_got_offsets[r_symndx] |= 1; | |
3308 | } | |
3309 | } | |
535127d2 | 3310 | relocation = off - got_base; |
aa137e4d NC |
3311 | break; |
3312 | ||
07d6d2b8 | 3313 | case R_TILEGX_JUMPOFF_X1_PLT: |
e5b95258 WL |
3314 | case R_TILEGX_IMM16_X0_HW0_PLT_PCREL: |
3315 | case R_TILEGX_IMM16_X1_HW0_PLT_PCREL: | |
3316 | case R_TILEGX_IMM16_X0_HW1_PLT_PCREL: | |
3317 | case R_TILEGX_IMM16_X1_HW1_PLT_PCREL: | |
3318 | case R_TILEGX_IMM16_X0_HW2_PLT_PCREL: | |
3319 | case R_TILEGX_IMM16_X1_HW2_PLT_PCREL: | |
3320 | case R_TILEGX_IMM16_X0_HW3_PLT_PCREL: | |
3321 | case R_TILEGX_IMM16_X1_HW3_PLT_PCREL: | |
3322 | case R_TILEGX_IMM16_X0_HW0_LAST_PLT_PCREL: | |
3323 | case R_TILEGX_IMM16_X1_HW0_LAST_PLT_PCREL: | |
3324 | case R_TILEGX_IMM16_X0_HW1_LAST_PLT_PCREL: | |
3325 | case R_TILEGX_IMM16_X1_HW1_LAST_PLT_PCREL: | |
3326 | case R_TILEGX_IMM16_X0_HW2_LAST_PLT_PCREL: | |
3327 | case R_TILEGX_IMM16_X1_HW2_LAST_PLT_PCREL: | |
aa137e4d NC |
3328 | /* Relocation is to the entry for this symbol in the |
3329 | procedure linkage table. */ | |
07d6d2b8 | 3330 | BFD_ASSERT (h != NULL); |
aa137e4d NC |
3331 | |
3332 | if (h->plt.offset == (bfd_vma) -1 || htab->elf.splt == NULL) | |
3333 | { | |
3334 | /* We didn't make a PLT entry for this symbol. This | |
3335 | happens when statically linking PIC code, or when | |
3336 | using -Bsymbolic. */ | |
3337 | break; | |
3338 | } | |
3339 | ||
3340 | relocation = (htab->elf.splt->output_section->vma | |
3341 | + htab->elf.splt->output_offset | |
3342 | + h->plt.offset); | |
3343 | unresolved_reloc = FALSE; | |
3344 | break; | |
3345 | ||
07d6d2b8 AM |
3346 | case R_TILEGX_64_PCREL: |
3347 | case R_TILEGX_32_PCREL: | |
3348 | case R_TILEGX_16_PCREL: | |
3349 | case R_TILEGX_8_PCREL: | |
aa137e4d NC |
3350 | case R_TILEGX_IMM16_X0_HW0_PCREL: |
3351 | case R_TILEGX_IMM16_X1_HW0_PCREL: | |
3352 | case R_TILEGX_IMM16_X0_HW1_PCREL: | |
3353 | case R_TILEGX_IMM16_X1_HW1_PCREL: | |
3354 | case R_TILEGX_IMM16_X0_HW2_PCREL: | |
3355 | case R_TILEGX_IMM16_X1_HW2_PCREL: | |
3356 | case R_TILEGX_IMM16_X0_HW3_PCREL: | |
3357 | case R_TILEGX_IMM16_X1_HW3_PCREL: | |
3358 | case R_TILEGX_IMM16_X0_HW0_LAST_PCREL: | |
3359 | case R_TILEGX_IMM16_X1_HW0_LAST_PCREL: | |
3360 | case R_TILEGX_IMM16_X0_HW1_LAST_PCREL: | |
3361 | case R_TILEGX_IMM16_X1_HW1_LAST_PCREL: | |
3362 | case R_TILEGX_IMM16_X0_HW2_LAST_PCREL: | |
3363 | case R_TILEGX_IMM16_X1_HW2_LAST_PCREL: | |
3364 | if (h != NULL | |
3365 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
3366 | break; | |
3367 | /* Fall through. */ | |
07d6d2b8 AM |
3368 | case R_TILEGX_64: |
3369 | case R_TILEGX_32: | |
3370 | case R_TILEGX_16: | |
3371 | case R_TILEGX_8: | |
aa137e4d NC |
3372 | case R_TILEGX_HW0: |
3373 | case R_TILEGX_HW1: | |
3374 | case R_TILEGX_HW2: | |
3375 | case R_TILEGX_HW3: | |
3376 | case R_TILEGX_HW0_LAST: | |
3377 | case R_TILEGX_HW1_LAST: | |
3378 | case R_TILEGX_HW2_LAST: | |
07d6d2b8 AM |
3379 | case R_TILEGX_COPY: |
3380 | case R_TILEGX_GLOB_DAT: | |
3381 | case R_TILEGX_JMP_SLOT: | |
3382 | case R_TILEGX_RELATIVE: | |
3383 | case R_TILEGX_BROFF_X1: | |
3384 | case R_TILEGX_JUMPOFF_X1: | |
3385 | case R_TILEGX_IMM8_X0: | |
3386 | case R_TILEGX_IMM8_Y0: | |
3387 | case R_TILEGX_IMM8_X1: | |
3388 | case R_TILEGX_IMM8_Y1: | |
3389 | case R_TILEGX_DEST_IMM8_X1: | |
3390 | case R_TILEGX_MT_IMM14_X1: | |
3391 | case R_TILEGX_MF_IMM14_X1: | |
3392 | case R_TILEGX_MMSTART_X0: | |
3393 | case R_TILEGX_MMEND_X0: | |
3394 | case R_TILEGX_SHAMT_X0: | |
3395 | case R_TILEGX_SHAMT_X1: | |
3396 | case R_TILEGX_SHAMT_Y0: | |
3397 | case R_TILEGX_SHAMT_Y1: | |
aa137e4d NC |
3398 | case R_TILEGX_IMM16_X0_HW0: |
3399 | case R_TILEGX_IMM16_X1_HW0: | |
3400 | case R_TILEGX_IMM16_X0_HW1: | |
3401 | case R_TILEGX_IMM16_X1_HW1: | |
3402 | case R_TILEGX_IMM16_X0_HW2: | |
3403 | case R_TILEGX_IMM16_X1_HW2: | |
3404 | case R_TILEGX_IMM16_X0_HW3: | |
3405 | case R_TILEGX_IMM16_X1_HW3: | |
3406 | case R_TILEGX_IMM16_X0_HW0_LAST: | |
3407 | case R_TILEGX_IMM16_X1_HW0_LAST: | |
3408 | case R_TILEGX_IMM16_X0_HW1_LAST: | |
3409 | case R_TILEGX_IMM16_X1_HW1_LAST: | |
3410 | case R_TILEGX_IMM16_X0_HW2_LAST: | |
3411 | case R_TILEGX_IMM16_X1_HW2_LAST: | |
3412 | if ((input_section->flags & SEC_ALLOC) == 0) | |
3413 | break; | |
3414 | ||
0e1862bb | 3415 | if ((bfd_link_pic (info) |
aa137e4d | 3416 | && (h == NULL |
a3cd202a L |
3417 | || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
3418 | && !resolved_to_zero) | |
aa137e4d NC |
3419 | || h->root.type != bfd_link_hash_undefweak) |
3420 | && (! howto->pc_relative | |
3421 | || !SYMBOL_CALLS_LOCAL (info, h))) | |
0e1862bb | 3422 | || (!bfd_link_pic (info) |
aa137e4d NC |
3423 | && h != NULL |
3424 | && h->dynindx != -1 | |
3425 | && !h->non_got_ref | |
3426 | && ((h->def_dynamic | |
3427 | && !h->def_regular) | |
3428 | || h->root.type == bfd_link_hash_undefweak | |
3429 | || h->root.type == bfd_link_hash_undefined))) | |
3430 | { | |
3431 | Elf_Internal_Rela outrel; | |
3432 | bfd_boolean skip, relocate = FALSE; | |
3433 | ||
3434 | /* When generating a shared object, these relocations | |
3435 | are copied into the output file to be resolved at run | |
3436 | time. */ | |
3437 | ||
3438 | BFD_ASSERT (sreloc != NULL); | |
3439 | ||
3440 | skip = FALSE; | |
3441 | ||
3442 | outrel.r_offset = | |
3443 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
3444 | rel->r_offset); | |
3445 | if (outrel.r_offset == (bfd_vma) -1) | |
3446 | skip = TRUE; | |
3447 | else if (outrel.r_offset == (bfd_vma) -2) | |
3448 | skip = TRUE, relocate = TRUE; | |
3449 | outrel.r_offset += (input_section->output_section->vma | |
3450 | + input_section->output_offset); | |
3451 | ||
3452 | switch (r_type) | |
3453 | { | |
07d6d2b8 AM |
3454 | case R_TILEGX_64_PCREL: |
3455 | case R_TILEGX_32_PCREL: | |
3456 | case R_TILEGX_16_PCREL: | |
3457 | case R_TILEGX_8_PCREL: | |
aa137e4d NC |
3458 | /* If the symbol is not dynamic, we should not keep |
3459 | a dynamic relocation. But an .rela.* slot has been | |
3460 | allocated for it, output R_TILEGX_NONE. | |
3461 | FIXME: Add code tracking needed dynamic relocs as | |
3462 | e.g. i386 has. */ | |
3463 | if (h->dynindx == -1) | |
3464 | skip = TRUE, relocate = TRUE; | |
3465 | break; | |
3466 | } | |
3467 | ||
3468 | if (skip) | |
3469 | memset (&outrel, 0, sizeof outrel); | |
3470 | /* h->dynindx may be -1 if the symbol was marked to | |
3471 | become local. */ | |
3472 | else if (h != NULL && | |
3473 | h->dynindx != -1 | |
3474 | && (! is_plt | |
0e1862bb | 3475 | || !bfd_link_pic (info) |
aa137e4d NC |
3476 | || !SYMBOLIC_BIND (info, h) |
3477 | || !h->def_regular)) | |
3478 | { | |
3479 | BFD_ASSERT (h->dynindx != -1); | |
3480 | outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, h->dynindx, r_type); | |
3481 | outrel.r_addend = rel->r_addend; | |
3482 | } | |
3483 | else | |
3484 | { | |
3485 | if (r_type == R_TILEGX_32 || r_type == R_TILEGX_64) | |
3486 | { | |
3487 | outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, | |
3488 | R_TILEGX_RELATIVE); | |
3489 | outrel.r_addend = relocation + rel->r_addend; | |
3490 | } | |
3491 | else | |
3492 | { | |
3493 | long indx; | |
3494 | ||
3495 | outrel.r_addend = relocation + rel->r_addend; | |
3496 | ||
3497 | if (is_plt) | |
3498 | sec = htab->elf.splt; | |
3499 | ||
3500 | if (bfd_is_abs_section (sec)) | |
3501 | indx = 0; | |
3502 | else if (sec == NULL || sec->owner == NULL) | |
3503 | { | |
3504 | bfd_set_error (bfd_error_bad_value); | |
3505 | return FALSE; | |
3506 | } | |
3507 | else | |
3508 | { | |
3509 | asection *osec; | |
3510 | ||
3511 | /* We are turning this relocation into one | |
3512 | against a section symbol. It would be | |
3513 | proper to subtract the symbol's value, | |
3514 | osec->vma, from the emitted reloc addend, | |
3515 | but ld.so expects buggy relocs. */ | |
3516 | osec = sec->output_section; | |
3517 | indx = elf_section_data (osec)->dynindx; | |
3518 | ||
3519 | if (indx == 0) | |
3520 | { | |
3521 | osec = htab->elf.text_index_section; | |
3522 | indx = elf_section_data (osec)->dynindx; | |
3523 | } | |
3524 | ||
3525 | /* FIXME: we really should be able to link non-pic | |
3526 | shared libraries. */ | |
3527 | if (indx == 0) | |
3528 | { | |
3529 | BFD_FAIL (); | |
4eca0228 | 3530 | _bfd_error_handler |
aa137e4d NC |
3531 | (_("%B: probably compiled without -fPIC?"), |
3532 | input_bfd); | |
3533 | bfd_set_error (bfd_error_bad_value); | |
3534 | return FALSE; | |
3535 | } | |
3536 | } | |
3537 | ||
3538 | outrel.r_info = TILEGX_ELF_R_INFO (htab, rel, indx, | |
3539 | r_type); | |
3540 | } | |
3541 | } | |
3542 | ||
3543 | tilegx_elf_append_rela (output_bfd, sreloc, &outrel); | |
3544 | ||
3545 | /* This reloc will be computed at runtime, so there's no | |
3546 | need to do anything now. */ | |
3547 | if (! relocate) | |
3548 | continue; | |
3549 | } | |
3550 | break; | |
3551 | ||
07d6d2b8 AM |
3552 | case R_TILEGX_IMM16_X0_HW0_TLS_LE: |
3553 | case R_TILEGX_IMM16_X1_HW0_TLS_LE: | |
3554 | case R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE: | |
3555 | case R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE: | |
3556 | case R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE: | |
3557 | case R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE: | |
28095894 | 3558 | if (!bfd_link_executable (info)) |
6f7be959 WL |
3559 | { |
3560 | Elf_Internal_Rela outrel; | |
3561 | bfd_boolean skip; | |
3562 | ||
3563 | BFD_ASSERT (sreloc != NULL); | |
3564 | skip = FALSE; | |
3565 | outrel.r_offset = | |
3566 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
3567 | rel->r_offset); | |
3568 | if (outrel.r_offset == (bfd_vma) -1) | |
3569 | skip = TRUE; | |
3570 | else if (outrel.r_offset == (bfd_vma) -2) | |
3571 | skip = TRUE; | |
3572 | outrel.r_offset += (input_section->output_section->vma | |
3573 | + input_section->output_offset); | |
3574 | if (skip) | |
3575 | memset (&outrel, 0, sizeof outrel); | |
3576 | else | |
3577 | { | |
3578 | outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, r_type); | |
3579 | outrel.r_addend = relocation - dtpoff_base (info) | |
3580 | + rel->r_addend; | |
3581 | } | |
3582 | ||
3583 | tilegx_elf_append_rela (output_bfd, sreloc, &outrel); | |
3584 | continue; | |
3585 | } | |
3586 | relocation = tpoff (info, relocation); | |
3587 | break; | |
3588 | ||
07d6d2b8 AM |
3589 | case R_TILEGX_IMM16_X0_HW0_TLS_GD: |
3590 | case R_TILEGX_IMM16_X1_HW0_TLS_GD: | |
3591 | case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: | |
3592 | case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: | |
3593 | case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: | |
3594 | case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: | |
3595 | case R_TILEGX_IMM16_X0_HW0_TLS_IE: | |
3596 | case R_TILEGX_IMM16_X1_HW0_TLS_IE: | |
3597 | case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: | |
3598 | case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: | |
3599 | case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: | |
3600 | case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: | |
6f7be959 WL |
3601 | r_type = tilegx_elf_tls_transition (info, r_type, h == NULL, |
3602 | input_section->sec_flg0); | |
07d6d2b8 | 3603 | tls_type = GOT_UNKNOWN; |
aa137e4d | 3604 | if (h == NULL && local_got_offsets) |
6f7be959 WL |
3605 | tls_type = |
3606 | _bfd_tilegx_elf_local_got_tls_type (input_bfd) [r_symndx]; | |
aa137e4d | 3607 | else if (h != NULL) |
6f7be959 WL |
3608 | { |
3609 | tls_type = tilegx_elf_hash_entry(h)->tls_type; | |
28095894 | 3610 | if (bfd_link_executable (info) |
0e1862bb L |
3611 | && h->dynindx == -1 |
3612 | && tls_type == GOT_TLS_IE) | |
6f7be959 WL |
3613 | r_type = (!input_section->sec_flg0 |
3614 | ? tilegx_tls_translate_to_le (r_type) | |
3615 | : tilegx_tls_translate_to_ie (r_type)); | |
3616 | } | |
aa137e4d NC |
3617 | |
3618 | if (tls_type == GOT_TLS_IE) | |
6f7be959 WL |
3619 | r_type = tilegx_tls_translate_to_ie (r_type); |
3620 | ||
3621 | if (r_type == R_TILEGX_IMM16_X0_HW0_TLS_LE | |
3622 | || r_type == R_TILEGX_IMM16_X1_HW0_TLS_LE | |
3623 | || r_type == R_TILEGX_IMM16_X0_HW0_LAST_TLS_LE | |
3624 | || r_type == R_TILEGX_IMM16_X1_HW0_LAST_TLS_LE | |
3625 | || r_type == R_TILEGX_IMM16_X0_HW1_LAST_TLS_LE | |
3626 | || r_type == R_TILEGX_IMM16_X1_HW1_LAST_TLS_LE) | |
3627 | { | |
3628 | relocation = tpoff (info, relocation); | |
3629 | break; | |
3630 | } | |
aa137e4d NC |
3631 | |
3632 | if (h != NULL) | |
3633 | { | |
3634 | off = h->got.offset; | |
3635 | h->got.offset |= 1; | |
3636 | } | |
3637 | else | |
3638 | { | |
3639 | BFD_ASSERT (local_got_offsets != NULL); | |
3640 | off = local_got_offsets[r_symndx]; | |
3641 | local_got_offsets[r_symndx] |= 1; | |
3642 | } | |
3643 | ||
3644 | if (htab->elf.sgot == NULL) | |
3645 | abort (); | |
3646 | ||
3647 | if ((off & 1) != 0) | |
3648 | off &= ~1; | |
3649 | else | |
3650 | { | |
3651 | Elf_Internal_Rela outrel; | |
3652 | int indx = 0; | |
3653 | bfd_boolean need_relocs = FALSE; | |
3654 | ||
3655 | if (htab->elf.srelgot == NULL) | |
3656 | abort (); | |
3657 | ||
3658 | if (h != NULL) | |
3659 | { | |
07d6d2b8 AM |
3660 | bfd_boolean dyn; |
3661 | dyn = htab->elf.dynamic_sections_created; | |
aa137e4d | 3662 | |
0e1862bb L |
3663 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
3664 | bfd_link_pic (info), | |
3665 | h) | |
3666 | && (!bfd_link_pic (info) | |
aa137e4d NC |
3667 | || !SYMBOL_REFERENCES_LOCAL (info, h))) |
3668 | { | |
3669 | indx = h->dynindx; | |
3670 | } | |
3671 | } | |
3672 | ||
3673 | /* The GOT entries have not been initialized yet. Do it | |
07d6d2b8 | 3674 | now, and emit any relocations. */ |
0e1862bb | 3675 | if ((bfd_link_pic (info) || indx != 0) |
aa137e4d NC |
3676 | && (h == NULL |
3677 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
3678 | || h->root.type != bfd_link_hash_undefweak)) | |
3679 | need_relocs = TRUE; | |
3680 | ||
07d6d2b8 AM |
3681 | switch (r_type) |
3682 | { | |
aa137e4d NC |
3683 | case R_TILEGX_IMM16_X0_HW0_TLS_IE: |
3684 | case R_TILEGX_IMM16_X1_HW0_TLS_IE: | |
aa137e4d NC |
3685 | case R_TILEGX_IMM16_X0_HW0_LAST_TLS_IE: |
3686 | case R_TILEGX_IMM16_X1_HW0_LAST_TLS_IE: | |
3687 | case R_TILEGX_IMM16_X0_HW1_LAST_TLS_IE: | |
3688 | case R_TILEGX_IMM16_X1_HW1_LAST_TLS_IE: | |
aa137e4d NC |
3689 | if (need_relocs) { |
3690 | TILEGX_ELF_PUT_WORD (htab, output_bfd, 0, | |
3691 | htab->elf.sgot->contents + off); | |
07d6d2b8 | 3692 | outrel.r_offset = (htab->elf.sgot->output_section->vma |
aa137e4d | 3693 | + htab->elf.sgot->output_offset + off); |
07d6d2b8 | 3694 | outrel.r_addend = 0; |
aa137e4d | 3695 | if (indx == 0) |
07d6d2b8 | 3696 | outrel.r_addend = relocation - dtpoff_base (info); |
aa137e4d NC |
3697 | outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx, |
3698 | TILEGX_ELF_TPOFF_RELOC (htab)); | |
3699 | tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel); | |
07d6d2b8 | 3700 | } else { |
aa137e4d NC |
3701 | TILEGX_ELF_PUT_WORD (htab, output_bfd, |
3702 | tpoff (info, relocation), | |
3703 | htab->elf.sgot->contents + off); | |
07d6d2b8 AM |
3704 | } |
3705 | break; | |
aa137e4d NC |
3706 | |
3707 | case R_TILEGX_IMM16_X0_HW0_TLS_GD: | |
3708 | case R_TILEGX_IMM16_X1_HW0_TLS_GD: | |
aa137e4d NC |
3709 | case R_TILEGX_IMM16_X0_HW0_LAST_TLS_GD: |
3710 | case R_TILEGX_IMM16_X1_HW0_LAST_TLS_GD: | |
3711 | case R_TILEGX_IMM16_X0_HW1_LAST_TLS_GD: | |
3712 | case R_TILEGX_IMM16_X1_HW1_LAST_TLS_GD: | |
aa137e4d | 3713 | if (need_relocs) { |
07d6d2b8 | 3714 | outrel.r_offset = (htab->elf.sgot->output_section->vma |
aa137e4d | 3715 | + htab->elf.sgot->output_offset + off); |
07d6d2b8 AM |
3716 | outrel.r_addend = 0; |
3717 | outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx, | |
aa137e4d NC |
3718 | TILEGX_ELF_DTPMOD_RELOC (htab)); |
3719 | TILEGX_ELF_PUT_WORD (htab, output_bfd, 0, | |
3720 | htab->elf.sgot->contents + off); | |
07d6d2b8 | 3721 | tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel); |
aa137e4d | 3722 | if (indx == 0) |
07d6d2b8 AM |
3723 | { |
3724 | BFD_ASSERT (! unresolved_reloc); | |
aa137e4d NC |
3725 | TILEGX_ELF_PUT_WORD (htab, output_bfd, |
3726 | relocation - dtpoff_base (info), | |
3727 | (htab->elf.sgot->contents + off + | |
3728 | TILEGX_ELF_WORD_BYTES (htab))); | |
07d6d2b8 | 3729 | } |
aa137e4d | 3730 | else |
07d6d2b8 | 3731 | { |
aa137e4d NC |
3732 | TILEGX_ELF_PUT_WORD (htab, output_bfd, 0, |
3733 | (htab->elf.sgot->contents + off + | |
3734 | TILEGX_ELF_WORD_BYTES (htab))); | |
07d6d2b8 | 3735 | outrel.r_info = TILEGX_ELF_R_INFO (htab, NULL, indx, |
aa137e4d | 3736 | TILEGX_ELF_DTPOFF_RELOC (htab)); |
07d6d2b8 AM |
3737 | outrel.r_offset += TILEGX_ELF_WORD_BYTES (htab); |
3738 | tilegx_elf_append_rela (output_bfd, htab->elf.srelgot, &outrel); | |
3739 | } | |
3740 | } | |
aa137e4d NC |
3741 | |
3742 | else { | |
3743 | /* If we are not emitting relocations for a | |
07d6d2b8 AM |
3744 | general dynamic reference, then we must be in a |
3745 | static link or an executable link with the | |
3746 | symbol binding locally. Mark it as belonging | |
3747 | to module 1, the executable. */ | |
aa137e4d NC |
3748 | TILEGX_ELF_PUT_WORD (htab, output_bfd, 1, |
3749 | htab->elf.sgot->contents + off ); | |
3750 | TILEGX_ELF_PUT_WORD (htab, output_bfd, | |
3751 | relocation - dtpoff_base (info), | |
3752 | htab->elf.sgot->contents + off + | |
3753 | TILEGX_ELF_WORD_BYTES (htab)); | |
3754 | } | |
07d6d2b8 AM |
3755 | break; |
3756 | } | |
aa137e4d NC |
3757 | } |
3758 | ||
3759 | if (off >= (bfd_vma) -2) | |
3760 | abort (); | |
3761 | ||
535127d2 | 3762 | relocation = off - got_base; |
aa137e4d NC |
3763 | unresolved_reloc = FALSE; |
3764 | howto = tilegx_elf_howto_table + r_type; | |
3765 | break; | |
3766 | ||
3767 | default: | |
3768 | break; | |
3769 | } | |
3770 | ||
3771 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections | |
3772 | because such sections are not SEC_ALLOC and thus ld.so will | |
3773 | not process them. */ | |
3774 | if (unresolved_reloc | |
3775 | && !((input_section->flags & SEC_DEBUGGING) != 0 | |
1d5316ab AM |
3776 | && h->def_dynamic) |
3777 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
3778 | rel->r_offset) != (bfd_vma) -1) | |
4eca0228 | 3779 | _bfd_error_handler |
695344c0 | 3780 | /* xgettext:c-format */ |
d42c267e | 3781 | (_("%B(%A+%#Lx): unresolvable %s relocation against symbol `%s'"), |
aa137e4d NC |
3782 | input_bfd, |
3783 | input_section, | |
d42c267e | 3784 | rel->r_offset, |
aa137e4d NC |
3785 | howto->name, |
3786 | h->root.root.string); | |
3787 | ||
3788 | r = bfd_reloc_continue; | |
3789 | ||
3790 | /* Get the operand creation function, if any. */ | |
3791 | create_func = reloc_to_create_func[r_type]; | |
3792 | if (create_func == NULL) | |
3793 | { | |
07d6d2b8 AM |
3794 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, |
3795 | contents, rel->r_offset, | |
3796 | relocation, rel->r_addend); | |
aa137e4d NC |
3797 | } |
3798 | else | |
3799 | { | |
07d6d2b8 AM |
3800 | if (howto->pc_relative) |
3801 | { | |
3802 | relocation -= | |
3803 | input_section->output_section->vma + input_section->output_offset; | |
3804 | if (howto->pcrel_offset) | |
3805 | relocation -= rel->r_offset; | |
3806 | } | |
3807 | ||
3808 | bfd_byte *data; | |
3809 | ||
3810 | /* Add the relocation addend if any to the final target value */ | |
3811 | relocation += rel->r_addend; | |
3812 | ||
3813 | /* Do basic range checking */ | |
3814 | r = bfd_check_overflow (howto->complain_on_overflow, | |
3815 | howto->bitsize, | |
3816 | howto->rightshift, | |
3817 | TILEGX_ELF_WORD_BYTES (htab) * 8, | |
3818 | relocation); | |
3819 | ||
3820 | /* | |
3821 | * Write the relocated value out into the raw section data. | |
3822 | * Don't put a relocation out in the .rela section. | |
3823 | */ | |
3824 | tilegx_bundle_bits mask = create_func(-1); | |
3825 | tilegx_bundle_bits value = create_func(relocation >> howto->rightshift); | |
3826 | ||
3827 | /* Only touch bytes while the mask is not 0, so we | |
3828 | don't write to out of bounds memory if this is actually | |
3829 | a 16-bit switch instruction. */ | |
3830 | for (data = contents + rel->r_offset; mask != 0; data++) | |
3831 | { | |
3832 | bfd_byte byte_mask = (bfd_byte)mask; | |
3833 | *data = (*data & ~byte_mask) | ((bfd_byte)value & byte_mask); | |
3834 | mask >>= 8; | |
3835 | value >>= 8; | |
3836 | } | |
aa137e4d NC |
3837 | } |
3838 | ||
3839 | if (r != bfd_reloc_ok) | |
3840 | { | |
3841 | const char *msg = NULL; | |
3842 | ||
3843 | switch (r) | |
3844 | { | |
3845 | case bfd_reloc_overflow: | |
1a72702b | 3846 | (*info->callbacks->reloc_overflow) |
aa137e4d NC |
3847 | (info, (h ? &h->root : NULL), name, howto->name, |
3848 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
3849 | break; | |
3850 | ||
3851 | case bfd_reloc_undefined: | |
1a72702b AM |
3852 | (*info->callbacks->undefined_symbol) |
3853 | (info, name, input_bfd, input_section, rel->r_offset, TRUE); | |
aa137e4d NC |
3854 | break; |
3855 | ||
3856 | case bfd_reloc_outofrange: | |
3857 | msg = _("internal error: out of range error"); | |
3858 | break; | |
3859 | ||
3860 | case bfd_reloc_notsupported: | |
3861 | msg = _("internal error: unsupported relocation error"); | |
3862 | break; | |
3863 | ||
3864 | case bfd_reloc_dangerous: | |
3865 | msg = _("internal error: dangerous relocation"); | |
3866 | break; | |
3867 | ||
3868 | default: | |
3869 | msg = _("internal error: unknown error"); | |
3870 | break; | |
3871 | } | |
3872 | ||
3873 | if (msg) | |
1a72702b AM |
3874 | (*info->callbacks->warning) (info, msg, name, input_bfd, |
3875 | input_section, rel->r_offset); | |
aa137e4d NC |
3876 | } |
3877 | } | |
3878 | ||
3879 | return TRUE; | |
3880 | } | |
3881 | ||
3882 | /* Finish up dynamic symbol handling. We set the contents of various | |
3883 | dynamic sections here. */ | |
3884 | ||
3885 | bfd_boolean | |
3886 | tilegx_elf_finish_dynamic_symbol (bfd *output_bfd, | |
3887 | struct bfd_link_info *info, | |
3888 | struct elf_link_hash_entry *h, | |
3889 | Elf_Internal_Sym *sym) | |
3890 | { | |
3891 | struct tilegx_elf_link_hash_table *htab; | |
3892 | ||
3893 | htab = tilegx_elf_hash_table (info); | |
3894 | BFD_ASSERT (htab != NULL); | |
3895 | ||
3896 | if (h->plt.offset != (bfd_vma) -1) | |
3897 | { | |
3898 | asection *splt; | |
3899 | asection *srela; | |
3900 | asection *sgotplt; | |
3901 | Elf_Internal_Rela rela; | |
3902 | bfd_byte *loc; | |
3903 | bfd_vma r_offset; | |
3904 | const struct elf_backend_data *bed = get_elf_backend_data (output_bfd); | |
3905 | ||
3906 | ||
3907 | int rela_index; | |
3908 | ||
3909 | /* This symbol has an entry in the PLT. Set it up. */ | |
3910 | ||
3911 | BFD_ASSERT (h->dynindx != -1); | |
3912 | ||
3913 | splt = htab->elf.splt; | |
3914 | srela = htab->elf.srelplt; | |
3915 | sgotplt = htab->elf.sgotplt; | |
3916 | ||
3917 | if (splt == NULL || srela == NULL) | |
3918 | abort (); | |
3919 | ||
3920 | /* Fill in the entry in the procedure linkage table. */ | |
3921 | rela_index = tilegx_plt_entry_build (output_bfd, htab, splt, sgotplt, | |
3922 | h->plt.offset, &r_offset); | |
3923 | ||
3924 | /* Fill in the entry in the global offset table, which initially points | |
3925 | to the beginning of the plt. */ | |
3926 | TILEGX_ELF_PUT_WORD (htab, output_bfd, | |
3927 | splt->output_section->vma + splt->output_offset, | |
3928 | sgotplt->contents + r_offset); | |
3929 | ||
3930 | /* Fill in the entry in the .rela.plt section. */ | |
3931 | rela.r_offset = (sgotplt->output_section->vma | |
3932 | + sgotplt->output_offset | |
3933 | + r_offset); | |
3934 | rela.r_addend = 0; | |
3935 | rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_JMP_SLOT); | |
3936 | ||
3937 | loc = srela->contents + rela_index * TILEGX_ELF_RELA_BYTES (htab); | |
3938 | bed->s->swap_reloca_out (output_bfd, &rela, loc); | |
3939 | ||
3940 | if (!h->def_regular) | |
3941 | { | |
3942 | /* Mark the symbol as undefined, rather than as defined in | |
3943 | the .plt section. Leave the value alone. */ | |
3944 | sym->st_shndx = SHN_UNDEF; | |
3945 | /* If the symbol is weak, we do need to clear the value. | |
3946 | Otherwise, the PLT entry would provide a definition for | |
3947 | the symbol even if the symbol wasn't defined anywhere, | |
3948 | and so the symbol would never be NULL. */ | |
3949 | if (!h->ref_regular_nonweak) | |
3950 | sym->st_value = 0; | |
3951 | } | |
3952 | } | |
3953 | ||
3954 | if (h->got.offset != (bfd_vma) -1 | |
3955 | && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_GD | |
3956 | && tilegx_elf_hash_entry(h)->tls_type != GOT_TLS_IE) | |
3957 | { | |
3958 | asection *sgot; | |
3959 | asection *srela; | |
3960 | Elf_Internal_Rela rela; | |
3961 | ||
3962 | /* This symbol has an entry in the GOT. Set it up. */ | |
3963 | ||
3964 | sgot = htab->elf.sgot; | |
3965 | srela = htab->elf.srelgot; | |
3966 | BFD_ASSERT (sgot != NULL && srela != NULL); | |
3967 | ||
3968 | rela.r_offset = (sgot->output_section->vma | |
3969 | + sgot->output_offset | |
3970 | + (h->got.offset &~ (bfd_vma) 1)); | |
3971 | ||
3972 | /* If this is a -Bsymbolic link, and the symbol is defined | |
3973 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
3974 | the symbol was forced to be local because of a version file. | |
3975 | The entry in the global offset table will already have been | |
3976 | initialized in the relocate_section function. */ | |
0e1862bb | 3977 | if (bfd_link_pic (info) |
aa137e4d NC |
3978 | && (info->symbolic || h->dynindx == -1) |
3979 | && h->def_regular) | |
3980 | { | |
3981 | asection *sec = h->root.u.def.section; | |
3982 | rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, 0, R_TILEGX_RELATIVE); | |
3983 | rela.r_addend = (h->root.u.def.value | |
3984 | + sec->output_section->vma | |
3985 | + sec->output_offset); | |
3986 | } | |
3987 | else | |
3988 | { | |
3989 | rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_GLOB_DAT); | |
3990 | rela.r_addend = 0; | |
3991 | } | |
3992 | ||
3993 | TILEGX_ELF_PUT_WORD (htab, output_bfd, 0, | |
3994 | sgot->contents + (h->got.offset & ~(bfd_vma) 1)); | |
3995 | tilegx_elf_append_rela (output_bfd, srela, &rela); | |
3996 | } | |
3997 | ||
3998 | if (h->needs_copy) | |
3999 | { | |
4000 | asection *s; | |
4001 | Elf_Internal_Rela rela; | |
4002 | ||
4003 | /* This symbols needs a copy reloc. Set it up. */ | |
4004 | BFD_ASSERT (h->dynindx != -1); | |
4005 | ||
afbf7e8e | 4006 | if (h->root.u.def.section == htab->elf.sdynrelro) |
5474d94f AM |
4007 | s = htab->elf.sreldynrelro; |
4008 | else | |
4009 | s = htab->elf.srelbss; | |
aa137e4d NC |
4010 | BFD_ASSERT (s != NULL); |
4011 | ||
4012 | rela.r_offset = (h->root.u.def.value | |
4013 | + h->root.u.def.section->output_section->vma | |
4014 | + h->root.u.def.section->output_offset); | |
4015 | rela.r_info = TILEGX_ELF_R_INFO (htab, NULL, h->dynindx, R_TILEGX_COPY); | |
4016 | rela.r_addend = 0; | |
4017 | tilegx_elf_append_rela (output_bfd, s, &rela); | |
4018 | } | |
4019 | ||
4020 | /* Mark some specially defined symbols as absolute. */ | |
9637f6ef | 4021 | if (h == htab->elf.hdynamic |
aa137e4d NC |
4022 | || (h == htab->elf.hgot || h == htab->elf.hplt)) |
4023 | sym->st_shndx = SHN_ABS; | |
4024 | ||
4025 | return TRUE; | |
4026 | } | |
4027 | ||
4028 | /* Finish up the dynamic sections. */ | |
4029 | ||
4030 | static bfd_boolean | |
4031 | tilegx_finish_dyn (bfd *output_bfd, struct bfd_link_info *info, | |
4032 | bfd *dynobj, asection *sdyn, | |
4033 | asection *splt ATTRIBUTE_UNUSED) | |
4034 | { | |
4035 | struct tilegx_elf_link_hash_table *htab; | |
4036 | const struct elf_backend_data *bed; | |
4037 | bfd_byte *dyncon, *dynconend; | |
4038 | size_t dynsize; | |
aa137e4d NC |
4039 | |
4040 | htab = tilegx_elf_hash_table (info); | |
4041 | BFD_ASSERT (htab != NULL); | |
4042 | bed = get_elf_backend_data (output_bfd); | |
4043 | dynsize = bed->s->sizeof_dyn; | |
4044 | dynconend = sdyn->contents + sdyn->size; | |
aa137e4d NC |
4045 | |
4046 | for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize) | |
4047 | { | |
4048 | Elf_Internal_Dyn dyn; | |
4049 | asection *s; | |
4050 | ||
4051 | bed->s->swap_dyn_in (dynobj, dyncon, &dyn); | |
4052 | ||
4053 | switch (dyn.d_tag) | |
4054 | { | |
4055 | case DT_PLTGOT: | |
4056 | s = htab->elf.sgotplt; | |
4057 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
4058 | break; | |
4059 | case DT_JMPREL: | |
4060 | s = htab->elf.srelplt; | |
4061 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
4062 | break; | |
4063 | case DT_PLTRELSZ: | |
4064 | s = htab->elf.srelplt; | |
4065 | dyn.d_un.d_val = s->size; | |
4066 | break; | |
4067 | default: | |
4068 | continue; | |
4069 | } | |
4070 | ||
4071 | bed->s->swap_dyn_out (output_bfd, &dyn, dyncon); | |
4072 | } | |
4073 | return TRUE; | |
4074 | } | |
4075 | ||
4076 | bfd_boolean | |
4077 | tilegx_elf_finish_dynamic_sections (bfd *output_bfd, | |
4078 | struct bfd_link_info *info) | |
4079 | { | |
4080 | bfd *dynobj; | |
4081 | asection *sdyn; | |
4082 | struct tilegx_elf_link_hash_table *htab; | |
663b5850 | 4083 | size_t pad_size; |
aa137e4d NC |
4084 | |
4085 | htab = tilegx_elf_hash_table (info); | |
4086 | BFD_ASSERT (htab != NULL); | |
4087 | dynobj = htab->elf.dynobj; | |
4088 | ||
3d4d4302 | 4089 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
aa137e4d NC |
4090 | |
4091 | if (elf_hash_table (info)->dynamic_sections_created) | |
4092 | { | |
4093 | asection *splt; | |
4094 | bfd_boolean ret; | |
4095 | ||
3d4d4302 | 4096 | splt = htab->elf.splt; |
aa137e4d NC |
4097 | BFD_ASSERT (splt != NULL && sdyn != NULL); |
4098 | ||
4099 | ret = tilegx_finish_dyn (output_bfd, info, dynobj, sdyn, splt); | |
4100 | ||
535b785f | 4101 | if (!ret) |
aa137e4d NC |
4102 | return ret; |
4103 | ||
4104 | /* Fill in the head and tail entries in the procedure linkage table. */ | |
4105 | if (splt->size > 0) | |
4106 | { | |
4107 | memcpy (splt->contents, | |
4108 | ABI_64_P (output_bfd) ? | |
4109 | tilegx64_plt0_entry : tilegx32_plt0_entry, | |
4110 | PLT_HEADER_SIZE); | |
4111 | ||
663b5850 WL |
4112 | memcpy (splt->contents + splt->size |
4113 | - PLT_ENTRY_SIZE + PLT_HEADER_SIZE, | |
aa137e4d NC |
4114 | ABI_64_P (output_bfd) ? |
4115 | tilegx64_plt_tail_entry : tilegx32_plt_tail_entry, | |
4116 | PLT_TAIL_SIZE); | |
663b5850 WL |
4117 | /* Add padding so that the plt section is a multiple of its |
4118 | entry size. */ | |
4119 | pad_size = PLT_ENTRY_SIZE - PLT_HEADER_SIZE - PLT_TAIL_SIZE; | |
4120 | memset (splt->contents + splt->size - pad_size, 0, pad_size); | |
aa137e4d | 4121 | |
4c7236d3 L |
4122 | elf_section_data (splt->output_section)->this_hdr.sh_entsize |
4123 | = PLT_ENTRY_SIZE; | |
4124 | } | |
aa137e4d NC |
4125 | } |
4126 | ||
4127 | if (htab->elf.sgotplt) | |
4128 | { | |
4129 | if (bfd_is_abs_section (htab->elf.sgotplt->output_section)) | |
4130 | { | |
4eca0228 | 4131 | _bfd_error_handler |
aa137e4d NC |
4132 | (_("discarded output section: `%A'"), htab->elf.sgotplt); |
4133 | return FALSE; | |
4134 | } | |
4135 | ||
4136 | if (htab->elf.sgotplt->size > 0) | |
4137 | { | |
4138 | /* Write the first two entries in .got.plt, needed for the dynamic | |
4139 | linker. */ | |
4140 | TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) -1, | |
4141 | htab->elf.sgotplt->contents); | |
4142 | TILEGX_ELF_PUT_WORD (htab, output_bfd, (bfd_vma) 0, | |
4143 | htab->elf.sgotplt->contents | |
4144 | + GOT_ENTRY_SIZE (htab)); | |
aa137e4d | 4145 | |
4c7236d3 L |
4146 | elf_section_data (htab->elf.sgotplt->output_section)->this_hdr.sh_entsize = |
4147 | GOT_ENTRY_SIZE (htab); | |
4148 | } | |
aa137e4d NC |
4149 | } |
4150 | ||
4151 | if (htab->elf.sgot) | |
4152 | { | |
4153 | if (htab->elf.sgot->size > 0) | |
4154 | { | |
4155 | /* Set the first entry in the global offset table to the address of | |
4156 | the dynamic section. */ | |
4157 | bfd_vma val = (sdyn ? | |
4158 | sdyn->output_section->vma + sdyn->output_offset : | |
4159 | 0); | |
4160 | TILEGX_ELF_PUT_WORD (htab, output_bfd, val, | |
4161 | htab->elf.sgot->contents); | |
aa137e4d | 4162 | |
4c7236d3 L |
4163 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = |
4164 | GOT_ENTRY_SIZE (htab); | |
4165 | } | |
aa137e4d NC |
4166 | } |
4167 | ||
4168 | return TRUE; | |
4169 | } | |
4170 | ||
4171 | \f | |
4172 | ||
4173 | /* Return address for Ith PLT stub in section PLT, for relocation REL | |
4174 | or (bfd_vma) -1 if it should not be included. */ | |
4175 | ||
4176 | bfd_vma | |
4177 | tilegx_elf_plt_sym_val (bfd_vma i, const asection *plt, | |
4178 | const arelent *rel ATTRIBUTE_UNUSED) | |
4179 | { | |
4180 | return plt->vma + PLT_HEADER_SIZE + i * PLT_ENTRY_SIZE; | |
4181 | } | |
4182 | ||
4183 | enum elf_reloc_type_class | |
7e612e98 AM |
4184 | tilegx_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
4185 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
4186 | const Elf_Internal_Rela *rela) | |
aa137e4d NC |
4187 | { |
4188 | switch ((int) TILEGX_ELF_R_TYPE (rela->r_info)) | |
4189 | { | |
4190 | case R_TILEGX_RELATIVE: | |
4191 | return reloc_class_relative; | |
4192 | case R_TILEGX_JMP_SLOT: | |
4193 | return reloc_class_plt; | |
4194 | case R_TILEGX_COPY: | |
4195 | return reloc_class_copy; | |
4196 | default: | |
4197 | return reloc_class_normal; | |
4198 | } | |
4199 | } | |
4200 | ||
4201 | int | |
4202 | tilegx_additional_program_headers (bfd *abfd, | |
4203 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
4204 | { | |
4205 | /* Each .intrpt section specified by the user adds another PT_LOAD | |
4206 | header since the sections are discontiguous. */ | |
4207 | static const char intrpt_sections[4][9] = | |
4208 | { | |
4209 | ".intrpt0", ".intrpt1", ".intrpt2", ".intrpt3" | |
4210 | }; | |
4211 | int count = 0; | |
4212 | int i; | |
4213 | ||
4214 | for (i = 0; i < 4; i++) | |
4215 | { | |
4216 | asection *sec = bfd_get_section_by_name (abfd, intrpt_sections[i]); | |
4217 | if (sec != NULL && (sec->flags & SEC_LOAD) != 0) | |
4218 | ++count; | |
4219 | } | |
4220 | ||
4221 | /* Add four "padding" headers in to leave room in case a custom linker | |
4222 | script does something fancy. Otherwise ld complains that it ran | |
4223 | out of program headers and refuses to link. */ | |
4224 | count += 4; | |
4225 | ||
4226 | return count; | |
4227 | } | |
4228 | ||
4229 | ||
4230 | bfd_boolean | |
50e03d47 | 4231 | _bfd_tilegx_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
aa137e4d | 4232 | { |
50e03d47 | 4233 | bfd *obfd = info->output_bfd; |
aa137e4d NC |
4234 | const char *targ1 = bfd_get_target (ibfd); |
4235 | const char *targ2 = bfd_get_target (obfd); | |
4236 | ||
4237 | if (strcmp (targ1, targ2) != 0) | |
4238 | { | |
4eca0228 | 4239 | _bfd_error_handler |
695344c0 | 4240 | /* xgettext:c-format */ |
aa137e4d NC |
4241 | (_("%B: Cannot link together %s and %s objects."), |
4242 | ibfd, targ1, targ2); | |
4243 | bfd_set_error (bfd_error_bad_value); | |
4244 | return FALSE; | |
4245 | } | |
4246 | ||
4247 | return TRUE; | |
4248 | } |