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73589c9d | 1 | /* Or1k-specific support for 32-bit ELF. |
2571583a | 2 | Copyright (C) 2001-2017 Free Software Foundation, Inc. |
73589c9d CS |
3 | Contributed for OR32 by Johan Rydberg, jrydberg@opencores.org |
4 | ||
5 | PIC parts added by Stefan Kristiansson, stefan.kristiansson@saunalahti.fi, | |
6 | largely based on elf32-m32r.c and elf32-microblaze.c. | |
7 | ||
8 | This file is part of BFD, the Binary File Descriptor library. | |
9 | ||
10 | This program is free software; you can redistribute it and/or modify | |
11 | it under the terms of the GNU General Public License as published by | |
12 | the Free Software Foundation; either version 3 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | This program is distributed in the hope that it will be useful, | |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | GNU General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU General Public License | |
21 | along with this program; if not, see <http://www.gnu.org/licenses/>. */ | |
22 | ||
23 | #include "sysdep.h" | |
24 | #include "bfd.h" | |
25 | #include "libbfd.h" | |
26 | #include "elf-bfd.h" | |
27 | #include "elf/or1k.h" | |
28 | #include "libiberty.h" | |
29 | ||
30 | #define PLT_ENTRY_SIZE 20 | |
31 | ||
32 | #define PLT0_ENTRY_WORD0 0x19800000 /* l.movhi r12, 0 <- hi(.got+4) */ | |
33 | #define PLT0_ENTRY_WORD1 0xa98c0000 /* l.ori r12, r12, 0 <- lo(.got+4) */ | |
34 | #define PLT0_ENTRY_WORD2 0x85ec0004 /* l.lwz r15, 4(r12) <- *(.got+8)*/ | |
35 | #define PLT0_ENTRY_WORD3 0x44007800 /* l.jr r15 */ | |
36 | #define PLT0_ENTRY_WORD4 0x858c0000 /* l.lwz r12, 0(r12) */ | |
37 | ||
38 | #define PLT0_PIC_ENTRY_WORD0 0x85900004 /* l.lwz r12, 4(r16) */ | |
39 | #define PLT0_PIC_ENTRY_WORD1 0x85f00008 /* l.lwz r15, 8(r16) */ | |
40 | #define PLT0_PIC_ENTRY_WORD2 0x44007800 /* l.jr r15 */ | |
41 | #define PLT0_PIC_ENTRY_WORD3 0x15000000 /* l.nop */ | |
42 | #define PLT0_PIC_ENTRY_WORD4 0x15000000 /* l.nop */ | |
43 | ||
44 | #define PLT_ENTRY_WORD0 0x19800000 /* l.movhi r12, 0 <- hi(got idx addr) */ | |
45 | #define PLT_ENTRY_WORD1 0xa98c0000 /* l.ori r12, r12, 0 <- lo(got idx addr) */ | |
46 | #define PLT_ENTRY_WORD2 0x858c0000 /* l.lwz r12, 0(r12) */ | |
47 | #define PLT_ENTRY_WORD3 0x44006000 /* l.jr r12 */ | |
48 | #define PLT_ENTRY_WORD4 0xa9600000 /* l.ori r11, r0, 0 <- reloc offset */ | |
49 | ||
50 | #define PLT_PIC_ENTRY_WORD0 0x85900000 /* l.lwz r12, 0(r16) <- index in got */ | |
51 | #define PLT_PIC_ENTRY_WORD1 0xa9600000 /* l.ori r11, r0, 0 <- reloc offset */ | |
52 | #define PLT_PIC_ENTRY_WORD2 0x44006000 /* l.jr r12 */ | |
53 | #define PLT_PIC_ENTRY_WORD3 0x15000000 /* l.nop */ | |
54 | #define PLT_PIC_ENTRY_WORD4 0x15000000 /* l.nop */ | |
55 | ||
56 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
57 | ||
58 | static reloc_howto_type or1k_elf_howto_table[] = | |
59 | { | |
60 | /* This reloc does nothing. */ | |
61 | HOWTO (R_OR1K_NONE, /* type */ | |
62 | 0, /* rightshift */ | |
6346d5ca AM |
63 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
64 | 0, /* bitsize */ | |
73589c9d CS |
65 | FALSE, /* pc_relative */ |
66 | 0, /* bitpos */ | |
67 | complain_overflow_dont, /* complain_on_overflow */ | |
68 | bfd_elf_generic_reloc, /* special_function */ | |
69 | "R_OR1K_NONE", /* name */ | |
70 | FALSE, /* partial_inplace */ | |
71 | 0, /* src_mask */ | |
72 | 0, /* dst_mask */ | |
73 | FALSE), /* pcrel_offset */ | |
74 | ||
75 | HOWTO (R_OR1K_32, | |
76 | 0, /* rightshift */ | |
77 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
78 | 32, /* bitsize */ | |
79 | FALSE, /* pc_relative */ | |
80 | 0, /* bitpos */ | |
81 | complain_overflow_unsigned, /* complain_on_overflow */ | |
82 | bfd_elf_generic_reloc, /* special_function */ | |
83 | "R_OR1K_32", /* name */ | |
84 | FALSE, /* partial_inplace */ | |
85 | 0, /* src_mask */ | |
86 | 0xffffffff, /* dst_mask */ | |
87 | FALSE), /* pcrel_offset */ | |
88 | ||
89 | HOWTO (R_OR1K_16, | |
90 | 0, /* rightshift */ | |
91 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
92 | 16, /* bitsize */ | |
93 | FALSE, /* pc_relative */ | |
94 | 0, /* bitpos */ | |
95 | complain_overflow_unsigned, /* complain_on_overflow */ | |
96 | bfd_elf_generic_reloc, /* special_function */ | |
97 | "R_OR1K_16", /* name */ | |
98 | FALSE, /* partial_inplace */ | |
99 | 0, /* src_mask */ | |
100 | 0xffff, /* dst_mask */ | |
101 | FALSE), /* pcrel_offset */ | |
102 | ||
103 | HOWTO (R_OR1K_8, | |
104 | 0, /* rightshift */ | |
105 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
106 | 8, /* bitsize */ | |
107 | FALSE, /* pc_relative */ | |
108 | 0, /* bitpos */ | |
109 | complain_overflow_unsigned, /* complain_on_overflow */ | |
110 | bfd_elf_generic_reloc, /* special_function */ | |
111 | "R_OR1K_8", /* name */ | |
112 | FALSE, /* partial_inplace */ | |
113 | 0, /* src_mask */ | |
114 | 0xff, /* dst_mask */ | |
115 | FALSE), /* pcrel_offset */ | |
116 | ||
117 | HOWTO (R_OR1K_LO_16_IN_INSN, /* type */ | |
118 | 0, /* rightshift */ | |
119 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
120 | 16, /* bitsize */ | |
121 | FALSE, /* pc_relative */ | |
122 | 0, /* bitpos */ | |
123 | complain_overflow_dont, /* complain_on_overflow */ | |
124 | bfd_elf_generic_reloc, /* special_function */ | |
125 | "R_OR1K_LO_16_IN_INSN", /* name */ | |
126 | FALSE, /* partial_inplace */ | |
127 | 0, /* src_mask */ | |
128 | 0x0000ffff, /* dst_mask */ | |
129 | FALSE), /* pcrel_offset */ | |
130 | ||
131 | HOWTO (R_OR1K_HI_16_IN_INSN, /* type */ | |
132 | 16, /* rightshift */ | |
133 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
134 | 16, /* bitsize */ | |
135 | FALSE, /* pc_relative */ | |
136 | 0, /* bitpos */ | |
137 | complain_overflow_dont, /* complain_on_overflow */ | |
138 | bfd_elf_generic_reloc, /* special_function */ | |
139 | "R_OR1K_HI_16_IN_INSN", /* name */ | |
140 | FALSE, /* partial_inplace */ | |
141 | 0, /* src_mask */ | |
142 | 0x0000ffff, /* dst_mask */ | |
143 | FALSE), /* pcrel_offset */ | |
144 | ||
145 | /* A PC relative 26 bit relocation, right shifted by 2. */ | |
146 | HOWTO (R_OR1K_INSN_REL_26, /* type */ | |
147 | 2, /* rightshift */ | |
148 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
149 | 26, /* bitsize */ | |
150 | TRUE, /* pc_relative */ | |
151 | 0, /* bitpos */ | |
152 | complain_overflow_signed, /* complain_on_overflow */ | |
153 | bfd_elf_generic_reloc, /* special_function */ | |
154 | "R_OR1K_INSN_REL_26", /* name */ | |
155 | FALSE, /* partial_inplace */ | |
156 | 0, /* src_mask */ | |
157 | 0x03ffffff, /* dst_mask */ | |
158 | TRUE), /* pcrel_offset */ | |
159 | ||
160 | /* GNU extension to record C++ vtable hierarchy. */ | |
161 | HOWTO (R_OR1K_GNU_VTINHERIT, /* type */ | |
162 | 0, /* rightshift */ | |
163 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
164 | 0, /* bitsize */ | |
165 | FALSE, /* pc_relative */ | |
166 | 0, /* bitpos */ | |
167 | complain_overflow_dont, /* complain_on_overflow */ | |
168 | NULL, /* special_function */ | |
169 | "R_OR1K_GNU_VTINHERIT", /* name */ | |
170 | FALSE, /* partial_inplace */ | |
171 | 0, /* src_mask */ | |
172 | 0, /* dst_mask */ | |
173 | FALSE), /* pcrel_offset */ | |
174 | ||
175 | /* GNU extension to record C++ vtable member usage. */ | |
176 | HOWTO (R_OR1K_GNU_VTENTRY, /* type */ | |
177 | 0, /* rightshift */ | |
178 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
179 | 0, /* bitsize */ | |
180 | FALSE, /* pc_relative */ | |
181 | 0, /* bitpos */ | |
182 | complain_overflow_dont, /* complain_on_overflow */ | |
183 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
184 | "R_OR1K_GNU_VTENTRY", /* name */ | |
185 | FALSE, /* partial_inplace */ | |
186 | 0, /* src_mask */ | |
187 | 0, /* dst_mask */ | |
188 | FALSE), /* pcrel_offset */ | |
189 | ||
190 | HOWTO (R_OR1K_32_PCREL, | |
191 | 0, /* rightshift */ | |
192 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
193 | 32, /* bitsize */ | |
194 | TRUE, /* pc_relative */ | |
195 | 0, /* bitpos */ | |
196 | complain_overflow_signed, /* complain_on_overflow */ | |
197 | bfd_elf_generic_reloc, /* special_function */ | |
198 | "R_OR1K_32_PCREL", /* name */ | |
199 | FALSE, /* partial_inplace */ | |
200 | 0, /* src_mask */ | |
201 | 0xffffffff, /* dst_mask */ | |
8a9e7a91 | 202 | TRUE), /* pcrel_offset */ |
73589c9d CS |
203 | |
204 | HOWTO (R_OR1K_16_PCREL, | |
205 | 0, /* rightshift */ | |
206 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
207 | 16, /* bitsize */ | |
208 | TRUE, /* pc_relative */ | |
209 | 0, /* bitpos */ | |
210 | complain_overflow_signed, /* complain_on_overflow */ | |
211 | bfd_elf_generic_reloc, /* special_function */ | |
212 | "R_OR1K_16_PCREL", /* name */ | |
213 | FALSE, /* partial_inplace */ | |
214 | 0, /* src_mask */ | |
215 | 0xffff, /* dst_mask */ | |
8a9e7a91 | 216 | TRUE), /* pcrel_offset */ |
73589c9d CS |
217 | |
218 | HOWTO (R_OR1K_8_PCREL, | |
219 | 0, /* rightshift */ | |
220 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
221 | 8, /* bitsize */ | |
222 | TRUE, /* pc_relative */ | |
223 | 0, /* bitpos */ | |
224 | complain_overflow_signed, /* complain_on_overflow */ | |
225 | bfd_elf_generic_reloc, /* special_function */ | |
226 | "R_OR1K_8_PCREL", /* name */ | |
227 | FALSE, /* partial_inplace */ | |
228 | 0, /* src_mask */ | |
229 | 0xff, /* dst_mask */ | |
8a9e7a91 | 230 | TRUE), /* pcrel_offset */ |
73589c9d CS |
231 | |
232 | HOWTO (R_OR1K_GOTPC_HI16, /* Type. */ | |
233 | 16, /* Rightshift. */ | |
234 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
235 | 16, /* Bitsize. */ | |
236 | TRUE, /* PC_relative. */ | |
237 | 0, /* Bitpos. */ | |
238 | complain_overflow_dont, /* Complain on overflow. */ | |
239 | bfd_elf_generic_reloc, /* Special Function. */ | |
240 | "R_OR1K_GOTPC_HI16", /* Name. */ | |
241 | FALSE, /* Partial Inplace. */ | |
242 | 0, /* Source Mask. */ | |
243 | 0xffff, /* Dest Mask. */ | |
244 | TRUE), /* PC relative offset? */ | |
245 | ||
246 | HOWTO (R_OR1K_GOTPC_LO16, /* Type. */ | |
247 | 0, /* Rightshift. */ | |
248 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
249 | 16, /* Bitsize. */ | |
250 | TRUE, /* PC_relative. */ | |
251 | 0, /* Bitpos. */ | |
252 | complain_overflow_dont, /* Complain on overflow. */ | |
253 | bfd_elf_generic_reloc, /* Special Function. */ | |
254 | "R_OR1K_GOTPC_LO16", /* Name. */ | |
255 | FALSE, /* Partial Inplace. */ | |
256 | 0, /* Source Mask. */ | |
257 | 0xffff, /* Dest Mask. */ | |
258 | TRUE), /* PC relative offset? */ | |
259 | ||
260 | HOWTO (R_OR1K_GOT16, /* type */ | |
261 | 0, /* rightshift */ | |
262 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
263 | 16, /* bitsize */ | |
264 | FALSE, /* pc_relative */ | |
265 | 0, /* bitpos */ | |
266 | complain_overflow_signed, /* complain_on_overflow */ | |
267 | bfd_elf_generic_reloc, /* special_function */ | |
268 | "R_OR1K_GOT16", /* name */ | |
269 | FALSE, /* partial_inplace */ | |
270 | 0, /* src_mask */ | |
271 | 0xffff, /* dst_mask */ | |
272 | FALSE), /* pcrel_offset */ | |
273 | ||
274 | /* A 26 bit PLT relocation. Shifted by 2. */ | |
275 | HOWTO (R_OR1K_PLT26, /* Type. */ | |
276 | 2, /* Rightshift. */ | |
277 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
278 | 26, /* Bitsize. */ | |
279 | TRUE, /* PC_relative. */ | |
280 | 0, /* Bitpos. */ | |
281 | complain_overflow_dont, /* Complain on overflow. */ | |
282 | bfd_elf_generic_reloc,/* Special Function. */ | |
283 | "R_OR1K_PLT26", /* Name. */ | |
284 | FALSE, /* Partial Inplace. */ | |
285 | 0, /* Source Mask. */ | |
286 | 0x03ffffff, /* Dest Mask. */ | |
287 | TRUE), /* PC relative offset? */ | |
288 | ||
289 | HOWTO (R_OR1K_GOTOFF_HI16, /* type */ | |
290 | 16, /* rightshift */ | |
291 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
292 | 16, /* bitsize */ | |
293 | FALSE, /* pc_relative */ | |
294 | 0, /* bitpos */ | |
295 | complain_overflow_dont, /* complain_on_overflow */ | |
296 | bfd_elf_generic_reloc, /* special_function */ | |
297 | "R_OR1K_GOTOFF_HI16", /* name */ | |
298 | FALSE, /* partial_inplace */ | |
299 | 0x0, /* src_mask */ | |
300 | 0xffff, /* dst_mask */ | |
301 | FALSE), /* pcrel_offset */ | |
302 | ||
303 | HOWTO (R_OR1K_GOTOFF_LO16, /* type */ | |
304 | 0, /* rightshift */ | |
305 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
306 | 16, /* bitsize */ | |
307 | FALSE, /* pc_relative */ | |
308 | 0, /* bitpos */ | |
309 | complain_overflow_dont, /* complain_on_overflow */ | |
310 | bfd_elf_generic_reloc, /* special_function */ | |
311 | "R_OR1K_GOTOFF_LO16", /* name */ | |
312 | FALSE, /* partial_inplace */ | |
313 | 0x0, /* src_mask */ | |
314 | 0xffff, /* dst_mask */ | |
315 | FALSE), /* pcrel_offset */ | |
316 | ||
317 | HOWTO (R_OR1K_COPY, /* type */ | |
318 | 0, /* rightshift */ | |
319 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
320 | 32, /* bitsize */ | |
321 | FALSE, /* pc_relative */ | |
322 | 0, /* bitpos */ | |
323 | complain_overflow_bitfield, /* complain_on_overflow */ | |
324 | bfd_elf_generic_reloc, /* special_function */ | |
325 | "R_OR1K_COPY", /* name */ | |
326 | FALSE, /* partial_inplace */ | |
327 | 0xffffffff, /* src_mask */ | |
328 | 0xffffffff, /* dst_mask */ | |
329 | FALSE), /* pcrel_offset */ | |
330 | ||
331 | HOWTO (R_OR1K_GLOB_DAT, /* type */ | |
332 | 0, /* rightshift */ | |
333 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
334 | 32, /* bitsize */ | |
335 | FALSE, /* pc_relative */ | |
336 | 0, /* bitpos */ | |
337 | complain_overflow_bitfield, /* complain_on_overflow */ | |
338 | bfd_elf_generic_reloc, /* special_function */ | |
339 | "R_OR1K_GLOB_DAT", /* name */ | |
340 | FALSE, /* partial_inplace */ | |
341 | 0xffffffff, /* src_mask */ | |
342 | 0xffffffff, /* dst_mask */ | |
343 | FALSE), /* pcrel_offset */ | |
344 | ||
345 | HOWTO (R_OR1K_JMP_SLOT, /* type */ | |
346 | 0, /* rightshift */ | |
347 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
348 | 32, /* bitsize */ | |
349 | FALSE, /* pc_relative */ | |
350 | 0, /* bitpos */ | |
351 | complain_overflow_bitfield, /* complain_on_overflow */ | |
352 | bfd_elf_generic_reloc, /* special_function */ | |
353 | "R_OR1K_JMP_SLOT", /* name */ | |
354 | FALSE, /* partial_inplace */ | |
355 | 0xffffffff, /* src_mask */ | |
356 | 0xffffffff, /* dst_mask */ | |
357 | FALSE), /* pcrel_offset */ | |
358 | ||
359 | HOWTO (R_OR1K_RELATIVE, /* type */ | |
360 | 0, /* rightshift */ | |
361 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
362 | 32, /* bitsize */ | |
363 | FALSE, /* pc_relative */ | |
364 | 0, /* bitpos */ | |
365 | complain_overflow_bitfield, /* complain_on_overflow */ | |
366 | bfd_elf_generic_reloc, /* special_function */ | |
367 | "R_OR1K_RELATIVE", /* name */ | |
368 | FALSE, /* partial_inplace */ | |
369 | 0xffffffff, /* src_mask */ | |
370 | 0xffffffff, /* dst_mask */ | |
371 | FALSE), /* pcrel_offset */ | |
372 | ||
373 | HOWTO (R_OR1K_TLS_GD_HI16, /* type */ | |
374 | 16, /* rightshift */ | |
375 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
376 | 16, /* bitsize */ | |
377 | FALSE, /* pc_relative */ | |
378 | 0, /* bitpos */ | |
379 | complain_overflow_dont, /* complain_on_overflow */ | |
380 | bfd_elf_generic_reloc, /* special_function */ | |
381 | "R_OR1K_TLS_GD_HI16", /* name */ | |
382 | FALSE, /* partial_inplace */ | |
383 | 0x0, /* src_mask */ | |
384 | 0xffff, /* dst_mask */ | |
385 | FALSE), /* pcrel_offset */ | |
386 | ||
387 | HOWTO (R_OR1K_TLS_GD_LO16, /* type */ | |
388 | 0, /* rightshift */ | |
389 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
390 | 16, /* bitsize */ | |
391 | FALSE, /* pc_relative */ | |
392 | 0, /* bitpos */ | |
393 | complain_overflow_dont, /* complain_on_overflow */ | |
394 | bfd_elf_generic_reloc, /* special_function */ | |
395 | "R_OR1K_TLS_GD_LO16", /* name */ | |
396 | FALSE, /* partial_inplace */ | |
397 | 0x0, /* src_mask */ | |
398 | 0xffff, /* dst_mask */ | |
399 | FALSE), /* pcrel_offset */ | |
400 | ||
401 | HOWTO (R_OR1K_TLS_LDM_HI16, /* type */ | |
402 | 16, /* rightshift */ | |
403 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
404 | 16, /* bitsize */ | |
405 | FALSE, /* pc_relative */ | |
406 | 0, /* bitpos */ | |
407 | complain_overflow_dont, /* complain_on_overflow */ | |
408 | bfd_elf_generic_reloc, /* special_function */ | |
409 | "R_OR1K_TLS_LDM_HI16", /* name */ | |
410 | FALSE, /* partial_inplace */ | |
411 | 0x0, /* src_mask */ | |
412 | 0xffff, /* dst_mask */ | |
413 | FALSE), /* pcrel_offset */ | |
414 | ||
415 | HOWTO (R_OR1K_TLS_LDM_LO16, /* type */ | |
416 | 0, /* rightshift */ | |
417 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
418 | 16, /* bitsize */ | |
419 | FALSE, /* pc_relative */ | |
420 | 0, /* bitpos */ | |
421 | complain_overflow_dont, /* complain_on_overflow */ | |
422 | bfd_elf_generic_reloc, /* special_function */ | |
423 | "R_OR1K_TLS_LDM_LO16", /* name */ | |
424 | FALSE, /* partial_inplace */ | |
425 | 0x0, /* src_mask */ | |
426 | 0xffff, /* dst_mask */ | |
427 | FALSE), /* pcrel_offset */ | |
428 | ||
429 | HOWTO (R_OR1K_TLS_LDO_HI16, /* type */ | |
430 | 16, /* rightshift */ | |
431 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
432 | 16, /* bitsize */ | |
433 | FALSE, /* pc_relative */ | |
434 | 0, /* bitpos */ | |
435 | complain_overflow_dont, /* complain_on_overflow */ | |
436 | bfd_elf_generic_reloc, /* special_function */ | |
437 | "R_OR1K_TLS_LDO_HI16", /* name */ | |
438 | FALSE, /* partial_inplace */ | |
439 | 0x0, /* src_mask */ | |
440 | 0xffff, /* dst_mask */ | |
441 | FALSE), /* pcrel_offset */ | |
442 | ||
443 | HOWTO (R_OR1K_TLS_LDO_LO16, /* type */ | |
444 | 0, /* rightshift */ | |
445 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
446 | 16, /* bitsize */ | |
447 | FALSE, /* pc_relative */ | |
448 | 0, /* bitpos */ | |
449 | complain_overflow_dont, /* complain_on_overflow */ | |
450 | bfd_elf_generic_reloc, /* special_function */ | |
451 | "R_OR1K_TLS_LDO_LO16", /* name */ | |
452 | FALSE, /* partial_inplace */ | |
453 | 0x0, /* src_mask */ | |
454 | 0xffff, /* dst_mask */ | |
455 | FALSE), /* pcrel_offset */ | |
456 | ||
457 | HOWTO (R_OR1K_TLS_IE_HI16, /* type */ | |
458 | 16, /* rightshift */ | |
459 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
460 | 16, /* bitsize */ | |
461 | FALSE, /* pc_relative */ | |
462 | 0, /* bitpos */ | |
463 | complain_overflow_dont, /* complain_on_overflow */ | |
464 | bfd_elf_generic_reloc, /* special_function */ | |
465 | "R_OR1K_TLS_IE_HI16", /* name */ | |
466 | FALSE, /* partial_inplace */ | |
467 | 0x0, /* src_mask */ | |
468 | 0xffff, /* dst_mask */ | |
469 | FALSE), /* pcrel_offset */ | |
470 | ||
471 | HOWTO (R_OR1K_TLS_IE_LO16, /* type */ | |
472 | 0, /* rightshift */ | |
473 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
474 | 16, /* bitsize */ | |
475 | FALSE, /* pc_relative */ | |
476 | 0, /* bitpos */ | |
477 | complain_overflow_dont, /* complain_on_overflow */ | |
478 | bfd_elf_generic_reloc, /* special_function */ | |
479 | "R_OR1K_TLS_IE_LO16", /* name */ | |
480 | FALSE, /* partial_inplace */ | |
481 | 0x0, /* src_mask */ | |
482 | 0xffff, /* dst_mask */ | |
483 | FALSE), /* pcrel_offset */ | |
484 | ||
485 | HOWTO (R_OR1K_TLS_LE_HI16, /* type */ | |
486 | 16, /* rightshift */ | |
487 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
488 | 16, /* bitsize */ | |
489 | FALSE, /* pc_relative */ | |
490 | 0, /* bitpos */ | |
491 | complain_overflow_dont, /* complain_on_overflow */ | |
492 | bfd_elf_generic_reloc, /* special_function */ | |
493 | "R_OR1K_TLS_LE_HI16", /* name */ | |
494 | FALSE, /* partial_inplace */ | |
495 | 0x0, /* src_mask */ | |
496 | 0xffff, /* dst_mask */ | |
497 | FALSE), /* pcrel_offset */ | |
498 | ||
499 | HOWTO (R_OR1K_TLS_LE_LO16, /* type */ | |
500 | 0, /* rightshift */ | |
501 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
502 | 16, /* bitsize */ | |
503 | FALSE, /* pc_relative */ | |
504 | 0, /* bitpos */ | |
505 | complain_overflow_dont, /* complain_on_overflow */ | |
506 | bfd_elf_generic_reloc, /* special_function */ | |
507 | "R_OR1K_TLS_LE_LO16", /* name */ | |
508 | FALSE, /* partial_inplace */ | |
509 | 0x0, /* src_mask */ | |
510 | 0xffff, /* dst_mask */ | |
511 | FALSE), /* pcrel_offset */ | |
512 | ||
513 | }; | |
514 | ||
515 | /* Map BFD reloc types to Or1k ELF reloc types. */ | |
516 | ||
517 | struct or1k_reloc_map | |
518 | { | |
519 | bfd_reloc_code_real_type bfd_reloc_val; | |
520 | unsigned int or1k_reloc_val; | |
521 | }; | |
522 | ||
523 | static const struct or1k_reloc_map or1k_reloc_map[] = | |
524 | { | |
525 | { BFD_RELOC_NONE, R_OR1K_NONE }, | |
526 | { BFD_RELOC_32, R_OR1K_32 }, | |
527 | { BFD_RELOC_16, R_OR1K_16 }, | |
528 | { BFD_RELOC_8, R_OR1K_8 }, | |
529 | { BFD_RELOC_LO16, R_OR1K_LO_16_IN_INSN }, | |
530 | { BFD_RELOC_HI16, R_OR1K_HI_16_IN_INSN }, | |
531 | { BFD_RELOC_OR1K_REL_26, R_OR1K_INSN_REL_26 }, | |
532 | { BFD_RELOC_VTABLE_ENTRY, R_OR1K_GNU_VTENTRY }, | |
533 | { BFD_RELOC_VTABLE_INHERIT, R_OR1K_GNU_VTINHERIT }, | |
534 | { BFD_RELOC_32_PCREL, R_OR1K_32_PCREL }, | |
535 | { BFD_RELOC_16_PCREL, R_OR1K_16_PCREL }, | |
536 | { BFD_RELOC_8_PCREL, R_OR1K_8_PCREL }, | |
537 | { BFD_RELOC_OR1K_GOTPC_HI16, R_OR1K_GOTPC_HI16 }, | |
538 | { BFD_RELOC_OR1K_GOTPC_LO16, R_OR1K_GOTPC_LO16 }, | |
539 | { BFD_RELOC_OR1K_GOT16, R_OR1K_GOT16 }, | |
540 | { BFD_RELOC_OR1K_PLT26, R_OR1K_PLT26 }, | |
541 | { BFD_RELOC_OR1K_GOTOFF_HI16, R_OR1K_GOTOFF_HI16 }, | |
542 | { BFD_RELOC_OR1K_GOTOFF_LO16, R_OR1K_GOTOFF_LO16 }, | |
543 | { BFD_RELOC_OR1K_GLOB_DAT, R_OR1K_GLOB_DAT }, | |
544 | { BFD_RELOC_OR1K_COPY, R_OR1K_COPY }, | |
545 | { BFD_RELOC_OR1K_JMP_SLOT, R_OR1K_JMP_SLOT }, | |
546 | { BFD_RELOC_OR1K_RELATIVE, R_OR1K_RELATIVE }, | |
547 | { BFD_RELOC_OR1K_TLS_GD_HI16, R_OR1K_TLS_GD_HI16 }, | |
548 | { BFD_RELOC_OR1K_TLS_GD_LO16, R_OR1K_TLS_GD_LO16 }, | |
549 | { BFD_RELOC_OR1K_TLS_LDM_HI16, R_OR1K_TLS_LDM_HI16 }, | |
550 | { BFD_RELOC_OR1K_TLS_LDM_LO16, R_OR1K_TLS_LDM_LO16 }, | |
551 | { BFD_RELOC_OR1K_TLS_LDO_HI16, R_OR1K_TLS_LDO_HI16 }, | |
552 | { BFD_RELOC_OR1K_TLS_LDO_LO16, R_OR1K_TLS_LDO_LO16 }, | |
553 | { BFD_RELOC_OR1K_TLS_IE_HI16, R_OR1K_TLS_IE_HI16 }, | |
554 | { BFD_RELOC_OR1K_TLS_IE_LO16, R_OR1K_TLS_IE_LO16 }, | |
555 | { BFD_RELOC_OR1K_TLS_LE_HI16, R_OR1K_TLS_LE_HI16 }, | |
556 | { BFD_RELOC_OR1K_TLS_LE_LO16, R_OR1K_TLS_LE_LO16 }, | |
557 | }; | |
558 | ||
559 | /* The linker needs to keep track of the number of relocs that it | |
560 | decides to copy as dynamic relocs in check_relocs for each symbol. | |
561 | This is so that it can later discard them if they are found to be | |
562 | unnecessary. We store the information in a field extending the | |
563 | regular ELF linker hash table. */ | |
564 | ||
565 | struct elf_or1k_dyn_relocs | |
566 | { | |
567 | struct elf_or1k_dyn_relocs *next; | |
568 | ||
569 | /* The input section of the reloc. */ | |
570 | asection *sec; | |
571 | ||
572 | /* Total number of relocs copied for the input section. */ | |
573 | bfd_size_type count; | |
574 | ||
575 | /* Number of pc-relative relocs copied for the input section. */ | |
576 | bfd_size_type pc_count; | |
577 | }; | |
578 | ||
579 | #define TLS_UNKNOWN 0 | |
580 | #define TLS_NONE 1 | |
581 | #define TLS_GD 2 | |
582 | #define TLS_LD 3 | |
583 | #define TLS_IE 4 | |
584 | #define TLS_LE 5 | |
585 | ||
586 | /* ELF linker hash entry. */ | |
587 | struct elf_or1k_link_hash_entry | |
588 | { | |
589 | struct elf_link_hash_entry root; | |
590 | ||
591 | /* Track dynamic relocs copied for this symbol. */ | |
592 | struct elf_or1k_dyn_relocs *dyn_relocs; | |
593 | ||
594 | /* Track type of TLS access. */ | |
595 | unsigned char tls_type; | |
596 | }; | |
597 | ||
598 | /* ELF object data. */ | |
599 | struct elf_or1k_obj_tdata | |
600 | { | |
601 | struct elf_obj_tdata root; | |
602 | ||
603 | /* tls_type for each local got entry. */ | |
604 | unsigned char *local_tls_type; | |
605 | }; | |
606 | ||
607 | #define elf_or1k_tdata(abfd) \ | |
608 | ((struct elf_or1k_obj_tdata *) (abfd)->tdata.any) | |
609 | ||
610 | #define elf_or1k_local_tls_type(abfd) \ | |
611 | (elf_or1k_tdata (abfd)->local_tls_type) | |
612 | ||
613 | /* ELF linker hash table. */ | |
614 | struct elf_or1k_link_hash_table | |
615 | { | |
616 | struct elf_link_hash_table root; | |
617 | ||
73589c9d CS |
618 | /* Small local sym to section mapping cache. */ |
619 | struct sym_cache sym_sec; | |
620 | }; | |
621 | ||
622 | /* Get the ELF linker hash table from a link_info structure. */ | |
623 | #define or1k_elf_hash_table(p) \ | |
624 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ | |
625 | == OR1K_ELF_DATA ? ((struct elf_or1k_link_hash_table *) ((p)->hash)) : NULL) | |
626 | ||
627 | static bfd_boolean | |
628 | elf_or1k_mkobject (bfd *abfd) | |
629 | { | |
630 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_or1k_obj_tdata), | |
631 | OR1K_ELF_DATA); | |
632 | } | |
633 | ||
634 | /* Create an entry in an or1k ELF linker hash table. */ | |
635 | ||
636 | static struct bfd_hash_entry * | |
637 | or1k_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
638 | struct bfd_hash_table *table, | |
639 | const char *string) | |
640 | { | |
641 | struct elf_or1k_link_hash_entry *ret = | |
642 | (struct elf_or1k_link_hash_entry *) entry; | |
643 | ||
644 | /* Allocate the structure if it has not already been allocated by a | |
645 | subclass. */ | |
646 | if (ret == NULL) | |
647 | ret = bfd_hash_allocate (table, | |
648 | sizeof (struct elf_or1k_link_hash_entry)); | |
649 | if (ret == NULL) | |
650 | return NULL; | |
651 | ||
652 | /* Call the allocation method of the superclass. */ | |
653 | ret = ((struct elf_or1k_link_hash_entry *) | |
654 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
655 | table, string)); | |
656 | if (ret != NULL) | |
657 | { | |
658 | struct elf_or1k_link_hash_entry *eh; | |
659 | ||
660 | eh = (struct elf_or1k_link_hash_entry *) ret; | |
661 | eh->dyn_relocs = NULL; | |
662 | eh->tls_type = TLS_UNKNOWN; | |
663 | } | |
664 | ||
665 | return (struct bfd_hash_entry *) ret; | |
666 | } | |
667 | ||
668 | /* Create an or1k ELF linker hash table. */ | |
669 | ||
670 | static struct bfd_link_hash_table * | |
671 | or1k_elf_link_hash_table_create (bfd *abfd) | |
672 | { | |
673 | struct elf_or1k_link_hash_table *ret; | |
674 | bfd_size_type amt = sizeof (struct elf_or1k_link_hash_table); | |
675 | ||
676 | ret = bfd_zmalloc (amt); | |
677 | if (ret == NULL) | |
678 | return NULL; | |
679 | ||
680 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, | |
681 | or1k_elf_link_hash_newfunc, | |
682 | sizeof (struct elf_or1k_link_hash_entry), | |
683 | OR1K_ELF_DATA)) | |
684 | { | |
685 | free (ret); | |
686 | return NULL; | |
687 | } | |
688 | ||
689 | return &ret->root.root; | |
690 | } | |
691 | ||
692 | static reloc_howto_type * | |
693 | or1k_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, | |
694 | bfd_reloc_code_real_type code) | |
695 | { | |
696 | unsigned int i; | |
697 | ||
0ba38529 | 698 | for (i = ARRAY_SIZE (or1k_reloc_map); i--;) |
73589c9d CS |
699 | if (or1k_reloc_map[i].bfd_reloc_val == code) |
700 | return & or1k_elf_howto_table[or1k_reloc_map[i].or1k_reloc_val]; | |
701 | ||
702 | return NULL; | |
703 | } | |
704 | ||
705 | static reloc_howto_type * | |
706 | or1k_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
707 | const char *r_name) | |
708 | { | |
709 | unsigned int i; | |
710 | ||
711 | for (i = 0; | |
712 | i < (sizeof (or1k_elf_howto_table) | |
713 | / sizeof (or1k_elf_howto_table[0])); | |
714 | i++) | |
715 | if (or1k_elf_howto_table[i].name != NULL | |
716 | && strcasecmp (or1k_elf_howto_table[i].name, r_name) == 0) | |
717 | return &or1k_elf_howto_table[i]; | |
718 | ||
719 | return NULL; | |
720 | } | |
721 | ||
722 | /* Set the howto pointer for an Or1k ELF reloc. */ | |
723 | ||
724 | static void | |
725 | or1k_info_to_howto_rela (bfd * abfd ATTRIBUTE_UNUSED, | |
726 | arelent * cache_ptr, | |
727 | Elf_Internal_Rela * dst) | |
728 | { | |
729 | unsigned int r_type; | |
730 | ||
731 | r_type = ELF32_R_TYPE (dst->r_info); | |
5860e3f8 NC |
732 | if (r_type >= (unsigned int) R_OR1K_max) |
733 | { | |
695344c0 | 734 | /* xgettext:c-format */ |
64d29018 | 735 | _bfd_error_handler (_("%B: invalid OR1K reloc number: %d"), abfd, r_type); |
5860e3f8 NC |
736 | r_type = 0; |
737 | } | |
73589c9d CS |
738 | cache_ptr->howto = & or1k_elf_howto_table[r_type]; |
739 | } | |
740 | ||
741 | ||
742 | /* Return the relocation value for @tpoff relocations.. */ | |
743 | static bfd_vma | |
744 | tpoff (struct bfd_link_info *info, bfd_vma address) | |
745 | { | |
746 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
747 | if (elf_hash_table (info)->tls_sec == NULL) | |
748 | return 0; | |
749 | ||
750 | /* The thread pointer on or1k stores the address after the TCB where | |
751 | the data is, just compute the difference. No need to compensate | |
752 | for the size of TCB. */ | |
753 | return (address - elf_hash_table (info)->tls_sec->vma); | |
754 | } | |
755 | ||
756 | /* Relocate an Or1k ELF section. | |
757 | ||
758 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
759 | to handle the relocations for a section. | |
760 | ||
761 | The relocs are always passed as Rela structures; if the section | |
762 | actually uses Rel structures, the r_addend field will always be | |
763 | zero. | |
764 | ||
765 | This function is responsible for adjusting the section contents as | |
766 | necessary, and (if using Rela relocs and generating a relocatable | |
767 | output file) adjusting the reloc addend as necessary. | |
768 | ||
769 | This function does not have to worry about setting the reloc | |
770 | address or the reloc symbol index. | |
771 | ||
772 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
773 | ||
774 | LOCAL_SECTIONS is an array giving the section in the input file | |
775 | corresponding to the st_shndx field of each local symbol. | |
776 | ||
777 | The global hash table entry for the global symbols can be found | |
778 | via elf_sym_hashes (input_bfd). | |
779 | ||
780 | When generating relocatable output, this function must handle | |
781 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
782 | going to be the section symbol corresponding to the output | |
783 | section, which means that the addend must be adjusted | |
784 | accordingly. */ | |
785 | ||
786 | static bfd_boolean | |
787 | or1k_elf_relocate_section (bfd *output_bfd, | |
788 | struct bfd_link_info *info, | |
789 | bfd *input_bfd, | |
790 | asection *input_section, | |
791 | bfd_byte *contents, | |
792 | Elf_Internal_Rela *relocs, | |
793 | Elf_Internal_Sym *local_syms, | |
794 | asection **local_sections) | |
795 | { | |
796 | Elf_Internal_Shdr *symtab_hdr; | |
797 | struct elf_link_hash_entry **sym_hashes; | |
798 | Elf_Internal_Rela *rel; | |
799 | Elf_Internal_Rela *relend; | |
800 | struct elf_or1k_link_hash_table *htab = or1k_elf_hash_table (info); | |
801 | bfd *dynobj; | |
802 | asection *sreloc; | |
803 | bfd_vma *local_got_offsets; | |
804 | asection *sgot; | |
805 | ||
806 | if (htab == NULL) | |
807 | return FALSE; | |
808 | ||
809 | dynobj = htab->root.dynobj; | |
810 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
811 | ||
812 | sreloc = elf_section_data (input_section)->sreloc; | |
813 | ||
ce558b89 | 814 | sgot = htab->root.sgot; |
73589c9d CS |
815 | |
816 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
817 | sym_hashes = elf_sym_hashes (input_bfd); | |
818 | relend = relocs + input_section->reloc_count; | |
819 | ||
820 | for (rel = relocs; rel < relend; rel++) | |
821 | { | |
822 | reloc_howto_type *howto; | |
823 | unsigned long r_symndx; | |
824 | Elf_Internal_Sym *sym; | |
825 | asection *sec; | |
826 | struct elf_link_hash_entry *h; | |
827 | bfd_vma relocation; | |
828 | bfd_reloc_status_type r; | |
829 | const char *name = NULL; | |
830 | int r_type; | |
831 | ||
832 | r_type = ELF32_R_TYPE (rel->r_info); | |
833 | r_symndx = ELF32_R_SYM (rel->r_info); | |
834 | ||
835 | if (r_type == R_OR1K_GNU_VTINHERIT | |
836 | || r_type == R_OR1K_GNU_VTENTRY) | |
837 | continue; | |
838 | ||
839 | if (r_type < 0 || r_type >= (int) R_OR1K_max) | |
840 | { | |
841 | bfd_set_error (bfd_error_bad_value); | |
842 | return FALSE; | |
843 | } | |
844 | ||
845 | howto = or1k_elf_howto_table + ELF32_R_TYPE (rel->r_info); | |
846 | h = NULL; | |
847 | sym = NULL; | |
848 | sec = NULL; | |
849 | ||
850 | if (r_symndx < symtab_hdr->sh_info) | |
851 | { | |
852 | sym = local_syms + r_symndx; | |
853 | sec = local_sections[r_symndx]; | |
854 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
855 | ||
856 | name = bfd_elf_string_from_elf_section | |
857 | (input_bfd, symtab_hdr->sh_link, sym->st_name); | |
858 | name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name; | |
859 | } | |
860 | else | |
861 | { | |
862 | bfd_boolean unresolved_reloc, warned, ignored; | |
863 | ||
864 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
865 | r_symndx, symtab_hdr, sym_hashes, | |
866 | h, sec, relocation, | |
867 | unresolved_reloc, warned, ignored); | |
868 | } | |
869 | ||
870 | if (sec != NULL && discarded_section (sec)) | |
871 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, | |
872 | rel, 1, relend, howto, 0, contents); | |
873 | ||
0e1862bb | 874 | if (bfd_link_relocatable (info)) |
73589c9d CS |
875 | continue; |
876 | ||
877 | switch (howto->type) | |
878 | { | |
879 | case R_OR1K_PLT26: | |
880 | { | |
ce558b89 | 881 | if (htab->root.splt != NULL && h != NULL |
73589c9d CS |
882 | && h->plt.offset != (bfd_vma) -1) |
883 | { | |
ce558b89 AM |
884 | relocation = (htab->root.splt->output_section->vma |
885 | + htab->root.splt->output_offset | |
73589c9d CS |
886 | + h->plt.offset); |
887 | } | |
888 | break; | |
889 | } | |
890 | ||
891 | case R_OR1K_GOT16: | |
892 | /* Relocation is to the entry for this symbol in the global | |
893 | offset table. */ | |
894 | BFD_ASSERT (sgot != NULL); | |
895 | if (h != NULL) | |
896 | { | |
897 | bfd_boolean dyn; | |
898 | bfd_vma off; | |
899 | ||
900 | off = h->got.offset; | |
901 | BFD_ASSERT (off != (bfd_vma) -1); | |
902 | ||
903 | dyn = htab->root.dynamic_sections_created; | |
0e1862bb L |
904 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
905 | bfd_link_pic (info), | |
906 | h) | |
907 | || (bfd_link_pic (info) | |
ffccb7af | 908 | && SYMBOL_REFERENCES_LOCAL (info, h))) |
73589c9d CS |
909 | { |
910 | /* This is actually a static link, or it is a | |
911 | -Bsymbolic link and the symbol is defined | |
912 | locally, or the symbol was forced to be local | |
913 | because of a version file. We must initialize | |
914 | this entry in the global offset table. Since the | |
915 | offset must always be a multiple of 4, we use the | |
916 | least significant bit to record whether we have | |
917 | initialized it already. | |
918 | ||
919 | When doing a dynamic link, we create a .rela.got | |
920 | relocation entry to initialize the value. This | |
921 | is done in the finish_dynamic_symbol routine. */ | |
922 | if ((off & 1) != 0) | |
923 | off &= ~1; | |
924 | else | |
925 | { | |
926 | /* Write entry in GOT. */ | |
927 | bfd_put_32 (output_bfd, relocation, | |
928 | sgot->contents + off); | |
929 | /* Mark GOT entry as having been written. */ | |
930 | h->got.offset |= 1; | |
931 | } | |
932 | } | |
933 | ||
934 | relocation = sgot->output_offset + off; | |
935 | } | |
936 | else | |
937 | { | |
938 | bfd_vma off; | |
939 | bfd_byte *loc; | |
940 | ||
941 | BFD_ASSERT (local_got_offsets != NULL | |
942 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
943 | ||
944 | /* Get offset into GOT table. */ | |
945 | off = local_got_offsets[r_symndx]; | |
946 | ||
947 | /* The offset must always be a multiple of 4. We use | |
948 | the least significant bit to record whether we have | |
949 | already processed this entry. */ | |
950 | if ((off & 1) != 0) | |
951 | off &= ~1; | |
952 | else | |
953 | { | |
954 | /* Write entry in GOT. */ | |
955 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
0e1862bb | 956 | if (bfd_link_pic (info)) |
73589c9d CS |
957 | { |
958 | asection *srelgot; | |
959 | Elf_Internal_Rela outrel; | |
960 | ||
961 | /* We need to generate a R_OR1K_RELATIVE reloc | |
962 | for the dynamic linker. */ | |
ce558b89 | 963 | srelgot = htab->root.srelgot; |
73589c9d CS |
964 | BFD_ASSERT (srelgot != NULL); |
965 | ||
966 | outrel.r_offset = (sgot->output_section->vma | |
967 | + sgot->output_offset | |
968 | + off); | |
969 | outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE); | |
970 | outrel.r_addend = relocation; | |
971 | loc = srelgot->contents; | |
972 | loc += srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
973 | bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc); | |
974 | ++srelgot->reloc_count; | |
975 | } | |
976 | ||
977 | local_got_offsets[r_symndx] |= 1; | |
978 | } | |
979 | relocation = sgot->output_offset + off; | |
980 | } | |
981 | ||
982 | /* Addend should be zero. */ | |
983 | if (rel->r_addend != 0) | |
4eca0228 | 984 | _bfd_error_handler |
73589c9d CS |
985 | (_("internal error: addend should be zero for R_OR1K_GOT16")); |
986 | ||
987 | break; | |
988 | ||
989 | case R_OR1K_GOTOFF_LO16: | |
990 | case R_OR1K_GOTOFF_HI16: | |
991 | /* Relocation is offset from GOT. */ | |
992 | BFD_ASSERT (sgot != NULL); | |
eacfca90 AM |
993 | relocation |
994 | -= (htab->root.hgot->root.u.def.value | |
995 | + htab->root.hgot->root.u.def.section->output_offset | |
996 | + htab->root.hgot->root.u.def.section->output_section->vma); | |
73589c9d CS |
997 | break; |
998 | ||
999 | case R_OR1K_INSN_REL_26: | |
1000 | case R_OR1K_HI_16_IN_INSN: | |
1001 | case R_OR1K_LO_16_IN_INSN: | |
1002 | case R_OR1K_32: | |
1003 | /* R_OR1K_16? */ | |
1004 | { | |
1005 | /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols | |
1006 | from removed linkonce sections, or sections discarded by | |
1007 | a linker script. */ | |
1008 | if (r_symndx == STN_UNDEF | |
1009 | || (input_section->flags & SEC_ALLOC) == 0) | |
1010 | break; | |
1011 | ||
0e1862bb | 1012 | if ((bfd_link_pic (info) |
73589c9d CS |
1013 | && (h == NULL |
1014 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
1015 | || h->root.type != bfd_link_hash_undefweak) | |
ffccb7af SK |
1016 | && (howto->type != R_OR1K_INSN_REL_26 |
1017 | || !SYMBOL_CALLS_LOCAL (info, h))) | |
0e1862bb | 1018 | || (!bfd_link_pic (info) |
73589c9d CS |
1019 | && h != NULL |
1020 | && h->dynindx != -1 | |
1021 | && !h->non_got_ref | |
1022 | && ((h->def_dynamic | |
1023 | && !h->def_regular) | |
1024 | || h->root.type == bfd_link_hash_undefweak | |
1025 | || h->root.type == bfd_link_hash_undefined))) | |
1026 | { | |
1027 | Elf_Internal_Rela outrel; | |
1028 | bfd_byte *loc; | |
1029 | bfd_boolean skip; | |
1030 | ||
1031 | /* When generating a shared object, these relocations | |
1032 | are copied into the output file to be resolved at run | |
1033 | time. */ | |
1034 | ||
1035 | BFD_ASSERT (sreloc != NULL); | |
1036 | ||
1037 | skip = FALSE; | |
1038 | ||
1039 | outrel.r_offset = | |
1040 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
1041 | rel->r_offset); | |
1042 | if (outrel.r_offset == (bfd_vma) -1) | |
1043 | skip = TRUE; | |
1044 | else if (outrel.r_offset == (bfd_vma) -2) | |
1045 | skip = TRUE; | |
1046 | outrel.r_offset += (input_section->output_section->vma | |
1047 | + input_section->output_offset); | |
1048 | ||
1049 | if (skip) | |
1050 | memset (&outrel, 0, sizeof outrel); | |
1051 | /* h->dynindx may be -1 if the symbol was marked to | |
1052 | become local. */ | |
1053 | else if (h != NULL | |
1054 | && ((! info->symbolic && h->dynindx != -1) | |
1055 | || !h->def_regular)) | |
1056 | { | |
1057 | BFD_ASSERT (h->dynindx != -1); | |
1058 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
1059 | outrel.r_addend = rel->r_addend; | |
1060 | } | |
1061 | else | |
1062 | { | |
1063 | if (r_type == R_OR1K_32) | |
1064 | { | |
1065 | outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE); | |
1066 | outrel.r_addend = relocation + rel->r_addend; | |
1067 | } | |
1068 | else | |
1069 | { | |
1070 | BFD_FAIL (); | |
4eca0228 | 1071 | _bfd_error_handler |
73589c9d CS |
1072 | (_("%B: probably compiled without -fPIC?"), |
1073 | input_bfd); | |
1074 | bfd_set_error (bfd_error_bad_value); | |
1075 | return FALSE; | |
1076 | } | |
1077 | } | |
1078 | ||
1079 | loc = sreloc->contents; | |
1080 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1081 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
1082 | break; | |
1083 | } | |
1084 | break; | |
1085 | } | |
1086 | ||
1087 | case R_OR1K_TLS_LDM_HI16: | |
1088 | case R_OR1K_TLS_LDM_LO16: | |
1089 | case R_OR1K_TLS_LDO_HI16: | |
1090 | case R_OR1K_TLS_LDO_LO16: | |
1091 | /* TODO: implement support for local dynamic. */ | |
1092 | BFD_FAIL (); | |
4eca0228 | 1093 | _bfd_error_handler |
73589c9d CS |
1094 | (_("%B: support for local dynamic not implemented"), |
1095 | input_bfd); | |
1096 | bfd_set_error (bfd_error_bad_value); | |
1097 | return FALSE; | |
1098 | ||
1099 | ||
1100 | case R_OR1K_TLS_GD_HI16: | |
1101 | case R_OR1K_TLS_GD_LO16: | |
1102 | case R_OR1K_TLS_IE_HI16: | |
1103 | case R_OR1K_TLS_IE_LO16: | |
1104 | { | |
1105 | bfd_vma gotoff; | |
1106 | Elf_Internal_Rela rela; | |
1107 | bfd_byte *loc; | |
1108 | int dynamic; | |
1109 | ||
230977a4 CS |
1110 | sreloc = bfd_get_section_by_name (dynobj, ".rela.got"); |
1111 | ||
73589c9d CS |
1112 | /* Mark as TLS related GOT entry by setting |
1113 | bit 2 as well as bit 1. */ | |
1114 | if (h != NULL) | |
1115 | { | |
1116 | gotoff = h->got.offset; | |
1117 | h->got.offset |= 3; | |
1118 | } | |
1119 | else | |
1120 | { | |
1121 | gotoff = local_got_offsets[r_symndx]; | |
1122 | local_got_offsets[r_symndx] |= 3; | |
1123 | } | |
1124 | ||
1125 | /* Only process the relocation once. */ | |
1126 | if (gotoff & 1) | |
1127 | { | |
1128 | relocation = sgot->output_offset + (gotoff & ~3); | |
1129 | break; | |
1130 | } | |
1131 | ||
1132 | BFD_ASSERT (elf_hash_table (info)->hgot == NULL | |
1133 | || elf_hash_table (info)->hgot->root.u.def.value == 0); | |
1134 | ||
1135 | /* Dynamic entries will require relocations. if we do not need | |
1136 | them we will just use the default R_OR1K_NONE and | |
1137 | not set anything. */ | |
0e1862bb | 1138 | dynamic = bfd_link_pic (info) |
73589c9d CS |
1139 | || (sec && (sec->flags & SEC_ALLOC) != 0 |
1140 | && h != NULL | |
1141 | && (h->root.type == bfd_link_hash_defweak || !h->def_regular)); | |
1142 | ||
1143 | /* Shared GD. */ | |
1144 | if (dynamic && (howto->type == R_OR1K_TLS_GD_HI16 | |
1145 | || howto->type == R_OR1K_TLS_GD_LO16)) | |
1146 | { | |
1147 | int i; | |
1148 | ||
1149 | /* Add DTPMOD and DTPOFF GOT and rela entries. */ | |
1150 | for (i = 0; i < 2; ++i) | |
1151 | { | |
1152 | rela.r_offset = sgot->output_section->vma + | |
1153 | sgot->output_offset + gotoff + i*4; | |
1154 | if (h != NULL && h->dynindx != -1) | |
1155 | { | |
1156 | rela.r_info = ELF32_R_INFO (h->dynindx, | |
1157 | (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF)); | |
1158 | rela.r_addend = 0; | |
1159 | } | |
1160 | else | |
1161 | { | |
1162 | rela.r_info = ELF32_R_INFO (0, | |
1163 | (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF)); | |
1164 | rela.r_addend = tpoff (info, relocation); | |
1165 | } | |
1166 | ||
1167 | loc = sreloc->contents; | |
1168 | loc += sreloc->reloc_count++ * | |
1169 | sizeof (Elf32_External_Rela); | |
1170 | ||
1171 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1172 | bfd_put_32 (output_bfd, 0, sgot->contents + gotoff + i*4); | |
1173 | } | |
1174 | } | |
1175 | /* Static GD. */ | |
1176 | else if (howto->type == R_OR1K_TLS_GD_HI16 | |
1177 | || howto->type == R_OR1K_TLS_GD_LO16) | |
1178 | { | |
1179 | bfd_put_32 (output_bfd, 1, sgot->contents + gotoff); | |
1180 | bfd_put_32 (output_bfd, tpoff (info, relocation), | |
1181 | sgot->contents + gotoff + 4); | |
1182 | } | |
1183 | /* Shared IE. */ | |
1184 | else if (dynamic) | |
1185 | { | |
1186 | /* Add TPOFF GOT and rela entries. */ | |
1187 | rela.r_offset = sgot->output_section->vma + | |
1188 | sgot->output_offset + gotoff; | |
1189 | if (h != NULL && h->dynindx != -1) | |
1190 | { | |
1191 | rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_TLS_TPOFF); | |
1192 | rela.r_addend = 0; | |
1193 | } | |
1194 | else | |
1195 | { | |
1196 | rela.r_info = ELF32_R_INFO (0, R_OR1K_TLS_TPOFF); | |
1197 | rela.r_addend = tpoff (info, relocation); | |
1198 | } | |
1199 | ||
1200 | loc = sreloc->contents; | |
1201 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1202 | ||
1203 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1204 | bfd_put_32 (output_bfd, 0, sgot->contents + gotoff); | |
1205 | } | |
1206 | /* Static IE. */ | |
1207 | else | |
1208 | { | |
1209 | bfd_put_32 (output_bfd, tpoff (info, relocation), | |
1210 | sgot->contents + gotoff); | |
1211 | } | |
1212 | relocation = sgot->output_offset + gotoff; | |
1213 | break; | |
1214 | } | |
1215 | case R_OR1K_TLS_LE_HI16: | |
1216 | case R_OR1K_TLS_LE_LO16: | |
1217 | ||
1218 | /* Relocation is offset from TP. */ | |
1219 | relocation = tpoff (info, relocation); | |
1220 | break; | |
1221 | ||
1222 | case R_OR1K_TLS_DTPMOD: | |
1223 | case R_OR1K_TLS_DTPOFF: | |
1224 | case R_OR1K_TLS_TPOFF: | |
1225 | /* These are resolved dynamically on load and shouldn't | |
1226 | be used as linker input. */ | |
1227 | BFD_FAIL (); | |
4eca0228 | 1228 | _bfd_error_handler |
73589c9d CS |
1229 | (_("%B: will not resolve runtime TLS relocation"), |
1230 | input_bfd); | |
1231 | bfd_set_error (bfd_error_bad_value); | |
1232 | return FALSE; | |
1233 | ||
1234 | default: | |
1235 | break; | |
1236 | } | |
1237 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
1238 | rel->r_offset, relocation, rel->r_addend); | |
1239 | ||
1240 | if (r != bfd_reloc_ok) | |
1241 | { | |
1242 | const char *msg = NULL; | |
1243 | ||
1244 | switch (r) | |
1245 | { | |
1246 | case bfd_reloc_overflow: | |
1a72702b | 1247 | (*info->callbacks->reloc_overflow) |
73589c9d CS |
1248 | (info, (h ? &h->root : NULL), name, howto->name, |
1249 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
1250 | break; | |
1251 | ||
1252 | case bfd_reloc_undefined: | |
1a72702b | 1253 | (*info->callbacks->undefined_symbol) |
73589c9d CS |
1254 | (info, name, input_bfd, input_section, rel->r_offset, TRUE); |
1255 | break; | |
1256 | ||
1257 | case bfd_reloc_outofrange: | |
1258 | msg = _("internal error: out of range error"); | |
1259 | break; | |
1260 | ||
1261 | case bfd_reloc_notsupported: | |
1262 | msg = _("internal error: unsupported relocation error"); | |
1263 | break; | |
1264 | ||
1265 | case bfd_reloc_dangerous: | |
1266 | msg = _("internal error: dangerous relocation"); | |
1267 | break; | |
1268 | ||
1269 | default: | |
1270 | msg = _("internal error: unknown error"); | |
1271 | break; | |
1272 | } | |
1273 | ||
1274 | if (msg) | |
1a72702b AM |
1275 | (*info->callbacks->warning) (info, msg, name, input_bfd, |
1276 | input_section, rel->r_offset); | |
73589c9d CS |
1277 | } |
1278 | } | |
1279 | ||
1280 | return TRUE; | |
1281 | } | |
1282 | ||
1283 | /* Return the section that should be marked against GC for a given | |
1284 | relocation. */ | |
1285 | ||
1286 | static asection * | |
1287 | or1k_elf_gc_mark_hook (asection *sec, | |
1288 | struct bfd_link_info *info, | |
1289 | Elf_Internal_Rela *rel, | |
1290 | struct elf_link_hash_entry *h, | |
1291 | Elf_Internal_Sym *sym) | |
1292 | { | |
1293 | if (h != NULL) | |
1294 | switch (ELF32_R_TYPE (rel->r_info)) | |
1295 | { | |
1296 | case R_OR1K_GNU_VTINHERIT: | |
1297 | case R_OR1K_GNU_VTENTRY: | |
1298 | return NULL; | |
1299 | } | |
1300 | ||
1301 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
1302 | } | |
1303 | ||
73589c9d CS |
1304 | /* Look through the relocs for a section during the first phase. */ |
1305 | ||
1306 | static bfd_boolean | |
1307 | or1k_elf_check_relocs (bfd *abfd, | |
1308 | struct bfd_link_info *info, | |
1309 | asection *sec, | |
1310 | const Elf_Internal_Rela *relocs) | |
1311 | { | |
1312 | Elf_Internal_Shdr *symtab_hdr; | |
1313 | struct elf_link_hash_entry **sym_hashes; | |
1314 | const Elf_Internal_Rela *rel; | |
1315 | ||
1316 | const Elf_Internal_Rela *rel_end; | |
1317 | struct elf_or1k_link_hash_table *htab; | |
1318 | bfd *dynobj; | |
1319 | asection *sreloc = NULL; | |
1320 | ||
0e1862bb | 1321 | if (bfd_link_relocatable (info)) |
73589c9d CS |
1322 | return TRUE; |
1323 | ||
1324 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1325 | sym_hashes = elf_sym_hashes (abfd); | |
1326 | ||
1327 | htab = or1k_elf_hash_table (info); | |
1328 | if (htab == NULL) | |
1329 | return FALSE; | |
1330 | ||
1331 | dynobj = htab->root.dynobj; | |
1332 | ||
1333 | rel_end = relocs + sec->reloc_count; | |
1334 | for (rel = relocs; rel < rel_end; rel++) | |
1335 | { | |
1336 | struct elf_link_hash_entry *h; | |
1337 | unsigned long r_symndx; | |
1338 | unsigned char tls_type; | |
1339 | ||
1340 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1341 | if (r_symndx < symtab_hdr->sh_info) | |
1342 | h = NULL; | |
1343 | else | |
1344 | { | |
1345 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1346 | while (h->root.type == bfd_link_hash_indirect | |
1347 | || h->root.type == bfd_link_hash_warning) | |
1348 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1349 | ||
1350 | /* PR15323, ref flags aren't set for references in the same | |
1351 | object. */ | |
bc4e12de | 1352 | h->root.non_ir_ref_regular = 1; |
73589c9d CS |
1353 | } |
1354 | ||
1355 | switch (ELF32_R_TYPE (rel->r_info)) | |
1356 | { | |
1357 | case R_OR1K_TLS_GD_HI16: | |
1358 | case R_OR1K_TLS_GD_LO16: | |
1359 | tls_type = TLS_GD; | |
1360 | break; | |
1361 | case R_OR1K_TLS_LDM_HI16: | |
1362 | case R_OR1K_TLS_LDM_LO16: | |
1363 | case R_OR1K_TLS_LDO_HI16: | |
1364 | case R_OR1K_TLS_LDO_LO16: | |
1365 | tls_type = TLS_LD; | |
1366 | break; | |
1367 | case R_OR1K_TLS_IE_HI16: | |
1368 | case R_OR1K_TLS_IE_LO16: | |
1369 | tls_type = TLS_IE; | |
1370 | break; | |
1371 | case R_OR1K_TLS_LE_HI16: | |
1372 | case R_OR1K_TLS_LE_LO16: | |
1373 | tls_type = TLS_LE; | |
1374 | break; | |
1375 | default: | |
1376 | tls_type = TLS_NONE; | |
1377 | } | |
1378 | ||
1379 | /* Record TLS type. */ | |
1380 | if (h != NULL) | |
1381 | ((struct elf_or1k_link_hash_entry *) h)->tls_type = tls_type; | |
1382 | else | |
1383 | { | |
1384 | unsigned char *local_tls_type; | |
1385 | ||
1386 | /* This is a TLS type record for a local symbol. */ | |
1387 | local_tls_type = (unsigned char *) elf_or1k_local_tls_type (abfd); | |
1388 | if (local_tls_type == NULL) | |
1389 | { | |
1390 | bfd_size_type size; | |
1391 | ||
1392 | size = symtab_hdr->sh_info; | |
1393 | local_tls_type = bfd_zalloc (abfd, size); | |
1394 | if (local_tls_type == NULL) | |
1395 | return FALSE; | |
1396 | elf_or1k_local_tls_type (abfd) = local_tls_type; | |
1397 | } | |
1398 | local_tls_type[r_symndx] = tls_type; | |
1399 | } | |
1400 | ||
1401 | switch (ELF32_R_TYPE (rel->r_info)) | |
1402 | { | |
1403 | /* This relocation describes the C++ object vtable hierarchy. | |
1404 | Reconstruct it for later use during GC. */ | |
1405 | case R_OR1K_GNU_VTINHERIT: | |
1406 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
1407 | return FALSE; | |
1408 | break; | |
1409 | ||
1410 | /* This relocation describes which C++ vtable entries are actually | |
1411 | used. Record for later use during GC. */ | |
1412 | case R_OR1K_GNU_VTENTRY: | |
1413 | BFD_ASSERT (h != NULL); | |
1414 | if (h != NULL | |
1415 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
1416 | return FALSE; | |
1417 | break; | |
1418 | ||
1419 | /* This relocation requires .plt entry. */ | |
1420 | case R_OR1K_PLT26: | |
1421 | if (h != NULL) | |
1422 | { | |
1423 | h->needs_plt = 1; | |
1424 | h->plt.refcount += 1; | |
1425 | } | |
1426 | break; | |
1427 | ||
1428 | case R_OR1K_GOT16: | |
1429 | case R_OR1K_GOTOFF_HI16: | |
1430 | case R_OR1K_GOTOFF_LO16: | |
1431 | case R_OR1K_TLS_GD_HI16: | |
1432 | case R_OR1K_TLS_GD_LO16: | |
1433 | case R_OR1K_TLS_IE_HI16: | |
1434 | case R_OR1K_TLS_IE_LO16: | |
ce558b89 | 1435 | if (htab->root.sgot == NULL) |
73589c9d CS |
1436 | { |
1437 | if (dynobj == NULL) | |
1438 | htab->root.dynobj = dynobj = abfd; | |
ce558b89 | 1439 | if (!_bfd_elf_create_got_section (dynobj, info)) |
73589c9d CS |
1440 | return FALSE; |
1441 | } | |
1442 | ||
73589c9d CS |
1443 | if (ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_HI16 && |
1444 | ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_LO16) | |
1445 | { | |
1446 | if (h != NULL) | |
1447 | h->got.refcount += 1; | |
1448 | else | |
1449 | { | |
1450 | bfd_signed_vma *local_got_refcounts; | |
1451 | ||
1452 | /* This is a global offset table entry for a local symbol. */ | |
1453 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1454 | if (local_got_refcounts == NULL) | |
1455 | { | |
1456 | bfd_size_type size; | |
1457 | ||
1458 | size = symtab_hdr->sh_info; | |
1459 | size *= sizeof (bfd_signed_vma); | |
1460 | local_got_refcounts = bfd_zalloc (abfd, size); | |
1461 | if (local_got_refcounts == NULL) | |
1462 | return FALSE; | |
1463 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1464 | } | |
1465 | local_got_refcounts[r_symndx] += 1; | |
1466 | } | |
1467 | } | |
1468 | break; | |
1469 | ||
1470 | case R_OR1K_INSN_REL_26: | |
1471 | case R_OR1K_HI_16_IN_INSN: | |
1472 | case R_OR1K_LO_16_IN_INSN: | |
1473 | case R_OR1K_32: | |
1474 | /* R_OR1K_16? */ | |
1475 | { | |
0e1862bb | 1476 | if (h != NULL && !bfd_link_pic (info)) |
73589c9d CS |
1477 | { |
1478 | /* We may need a copy reloc. */ | |
1479 | h->non_got_ref = 1; | |
1480 | ||
1481 | /* We may also need a .plt entry. */ | |
1482 | h->plt.refcount += 1; | |
1483 | if (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26) | |
1484 | h->pointer_equality_needed = 1; | |
1485 | } | |
1486 | ||
1487 | /* If we are creating a shared library, and this is a reloc | |
1488 | against a global symbol, or a non PC relative reloc | |
1489 | against a local symbol, then we need to copy the reloc | |
1490 | into the shared library. However, if we are linking with | |
1491 | -Bsymbolic, we do not need to copy a reloc against a | |
1492 | global symbol which is defined in an object we are | |
1493 | including in the link (i.e., DEF_REGULAR is set). At | |
1494 | this point we have not seen all the input files, so it is | |
1495 | possible that DEF_REGULAR is not set now but will be set | |
1496 | later (it is never cleared). In case of a weak definition, | |
1497 | DEF_REGULAR may be cleared later by a strong definition in | |
1498 | a shared library. We account for that possibility below by | |
1499 | storing information in the relocs_copied field of the hash | |
1500 | table entry. A similar situation occurs when creating | |
1501 | shared libraries and symbol visibility changes render the | |
1502 | symbol local. | |
1503 | ||
1504 | If on the other hand, we are creating an executable, we | |
1505 | may need to keep relocations for symbols satisfied by a | |
1506 | dynamic library if we manage to avoid copy relocs for the | |
1507 | symbol. */ | |
1508 | ||
0e1862bb | 1509 | if ((bfd_link_pic (info) |
73589c9d CS |
1510 | && (sec->flags & SEC_ALLOC) != 0 |
1511 | && (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26 | |
1512 | || (h != NULL | |
ffccb7af | 1513 | && (!SYMBOLIC_BIND (info, h) |
73589c9d CS |
1514 | || h->root.type == bfd_link_hash_defweak |
1515 | || !h->def_regular)))) | |
0e1862bb | 1516 | || (!bfd_link_pic (info) |
73589c9d CS |
1517 | && (sec->flags & SEC_ALLOC) != 0 |
1518 | && h != NULL | |
1519 | && (h->root.type == bfd_link_hash_defweak | |
1520 | || !h->def_regular))) | |
1521 | { | |
1522 | struct elf_or1k_dyn_relocs *p; | |
1523 | struct elf_or1k_dyn_relocs **head; | |
1524 | ||
1525 | /* When creating a shared object, we must copy these | |
1526 | relocs into the output file. We create a reloc | |
1527 | section in dynobj and make room for the reloc. */ | |
1528 | if (sreloc == NULL) | |
1529 | { | |
1530 | const char *name; | |
1531 | unsigned int strndx = elf_elfheader (abfd)->e_shstrndx; | |
1532 | unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name; | |
1533 | ||
1534 | name = bfd_elf_string_from_elf_section (abfd, strndx, shnam); | |
1535 | if (name == NULL) | |
1536 | return FALSE; | |
1537 | ||
1538 | if (strncmp (name, ".rela", 5) != 0 | |
1539 | || strcmp (bfd_get_section_name (abfd, sec), | |
1540 | name + 5) != 0) | |
1541 | { | |
4eca0228 | 1542 | _bfd_error_handler |
695344c0 | 1543 | /* xgettext:c-format */ |
73589c9d CS |
1544 | (_("%B: bad relocation section name `%s\'"), |
1545 | abfd, name); | |
1546 | } | |
1547 | ||
1548 | if (htab->root.dynobj == NULL) | |
1549 | htab->root.dynobj = abfd; | |
1550 | dynobj = htab->root.dynobj; | |
1551 | ||
1552 | sreloc = bfd_get_section_by_name (dynobj, name); | |
1553 | if (sreloc == NULL) | |
1554 | { | |
1555 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
1556 | (sec, dynobj, 2, abfd, /*rela?*/ TRUE); | |
1557 | ||
1558 | if (sreloc == NULL) | |
1559 | return FALSE; | |
1560 | } | |
1561 | elf_section_data (sec)->sreloc = sreloc; | |
1562 | } | |
1563 | ||
1564 | /* If this is a global symbol, we count the number of | |
1565 | relocations we need for this symbol. */ | |
1566 | if (h != NULL) | |
1567 | head = &((struct elf_or1k_link_hash_entry *) h)->dyn_relocs; | |
1568 | else | |
1569 | { | |
1570 | /* Track dynamic relocs needed for local syms too. | |
1571 | We really need local syms available to do this | |
1572 | easily. Oh well. */ | |
1573 | ||
1574 | asection *s; | |
1575 | Elf_Internal_Sym *isym; | |
1576 | void *vpp; | |
1577 | ||
1578 | isym = bfd_sym_from_r_symndx (&htab->sym_sec, | |
1579 | abfd, r_symndx); | |
1580 | if (isym == NULL) | |
1581 | return FALSE; | |
1582 | ||
1583 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
1584 | if (s == NULL) | |
1585 | return FALSE; | |
1586 | ||
1587 | vpp = &elf_section_data (s)->local_dynrel; | |
1588 | head = (struct elf_or1k_dyn_relocs **) vpp; | |
1589 | } | |
1590 | ||
1591 | p = *head; | |
1592 | if (p == NULL || p->sec != sec) | |
1593 | { | |
1594 | bfd_size_type amt = sizeof *p; | |
1595 | p = ((struct elf_or1k_dyn_relocs *) | |
1596 | bfd_alloc (htab->root.dynobj, amt)); | |
1597 | if (p == NULL) | |
1598 | return FALSE; | |
1599 | p->next = *head; | |
1600 | *head = p; | |
1601 | p->sec = sec; | |
1602 | p->count = 0; | |
1603 | p->pc_count = 0; | |
1604 | } | |
1605 | ||
1606 | p->count += 1; | |
1607 | if (ELF32_R_TYPE (rel->r_info) == R_OR1K_INSN_REL_26) | |
1608 | p->pc_count += 1; | |
1609 | } | |
1610 | } | |
1611 | break; | |
1612 | } | |
1613 | } | |
1614 | ||
1615 | return TRUE; | |
1616 | } | |
1617 | ||
1618 | /* Finish up the dynamic sections. */ | |
1619 | ||
1620 | static bfd_boolean | |
1621 | or1k_elf_finish_dynamic_sections (bfd *output_bfd, | |
1622 | struct bfd_link_info *info) | |
1623 | { | |
1624 | bfd *dynobj; | |
1625 | asection *sdyn, *sgot; | |
1626 | struct elf_or1k_link_hash_table *htab; | |
1627 | ||
1628 | htab = or1k_elf_hash_table (info); | |
1629 | if (htab == NULL) | |
1630 | return FALSE; | |
1631 | ||
1632 | dynobj = htab->root.dynobj; | |
1633 | ||
ce558b89 | 1634 | sgot = htab->root.sgotplt; |
73589c9d CS |
1635 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
1636 | ||
1637 | if (htab->root.dynamic_sections_created) | |
1638 | { | |
1639 | asection *splt; | |
1640 | Elf32_External_Dyn *dyncon, *dynconend; | |
1641 | ||
1642 | BFD_ASSERT (sgot != NULL && sdyn != NULL); | |
1643 | ||
1644 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
1645 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
1646 | ||
1647 | for (; dyncon < dynconend; dyncon++) | |
1648 | { | |
1649 | Elf_Internal_Dyn dyn; | |
1650 | asection *s; | |
1651 | ||
1652 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
1653 | ||
1654 | switch (dyn.d_tag) | |
1655 | { | |
1656 | default: | |
1657 | continue; | |
1658 | ||
1659 | case DT_PLTGOT: | |
ce558b89 | 1660 | s = htab->root.sgotplt; |
4ade44b7 | 1661 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
73589c9d CS |
1662 | break; |
1663 | ||
1664 | case DT_JMPREL: | |
ce558b89 | 1665 | s = htab->root.srelplt; |
4ade44b7 | 1666 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
73589c9d CS |
1667 | break; |
1668 | ||
1669 | case DT_PLTRELSZ: | |
ce558b89 | 1670 | s = htab->root.srelplt; |
73589c9d CS |
1671 | dyn.d_un.d_val = s->size; |
1672 | break; | |
73589c9d CS |
1673 | } |
1674 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
1675 | } | |
1676 | ||
1677 | ||
1678 | /* Fill in the first entry in the procedure linkage table. */ | |
ce558b89 | 1679 | splt = htab->root.splt; |
73589c9d CS |
1680 | if (splt && splt->size > 0) |
1681 | { | |
0e1862bb | 1682 | if (bfd_link_pic (info)) |
73589c9d CS |
1683 | { |
1684 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, | |
1685 | splt->contents); | |
1686 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, | |
1687 | splt->contents + 4); | |
1688 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, | |
1689 | splt->contents + 8); | |
1690 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, | |
1691 | splt->contents + 12); | |
1692 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, | |
1693 | splt->contents + 16); | |
1694 | } | |
1695 | else | |
1696 | { | |
1697 | unsigned long addr; | |
1698 | /* addr = .got + 4 */ | |
1699 | addr = sgot->output_section->vma + sgot->output_offset + 4; | |
1700 | bfd_put_32 (output_bfd, | |
1701 | PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff), | |
1702 | splt->contents); | |
1703 | bfd_put_32 (output_bfd, | |
1704 | PLT0_ENTRY_WORD1 | (addr & 0xffff), | |
1705 | splt->contents + 4); | |
1706 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8); | |
1707 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12); | |
1708 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16); | |
1709 | } | |
1710 | ||
1711 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
1712 | } | |
1713 | } | |
1714 | ||
1715 | /* Set the first entry in the global offset table to the address of | |
1716 | the dynamic section. */ | |
1717 | if (sgot && sgot->size > 0) | |
1718 | { | |
1719 | if (sdyn == NULL) | |
1720 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
1721 | else | |
1722 | bfd_put_32 (output_bfd, | |
1723 | sdyn->output_section->vma + sdyn->output_offset, | |
1724 | sgot->contents); | |
1725 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
1726 | } | |
1727 | ||
ce558b89 AM |
1728 | if (htab->root.sgot && htab->root.sgot->size > 0) |
1729 | elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize = 4; | |
73589c9d CS |
1730 | |
1731 | return TRUE; | |
1732 | } | |
1733 | ||
1734 | /* Finish up dynamic symbol handling. We set the contents of various | |
1735 | dynamic sections here. */ | |
1736 | ||
1737 | static bfd_boolean | |
1738 | or1k_elf_finish_dynamic_symbol (bfd *output_bfd, | |
1739 | struct bfd_link_info *info, | |
1740 | struct elf_link_hash_entry *h, | |
1741 | Elf_Internal_Sym *sym) | |
1742 | { | |
1743 | struct elf_or1k_link_hash_table *htab; | |
1744 | bfd_byte *loc; | |
1745 | ||
1746 | htab = or1k_elf_hash_table (info); | |
1747 | if (htab == NULL) | |
1748 | return FALSE; | |
1749 | ||
1750 | if (h->plt.offset != (bfd_vma) -1) | |
1751 | { | |
1752 | asection *splt; | |
1753 | asection *sgot; | |
1754 | asection *srela; | |
1755 | ||
1756 | bfd_vma plt_index; | |
1757 | bfd_vma got_offset; | |
1758 | bfd_vma got_addr; | |
1759 | Elf_Internal_Rela rela; | |
1760 | ||
1761 | /* This symbol has an entry in the procedure linkage table. Set | |
1762 | it up. */ | |
1763 | BFD_ASSERT (h->dynindx != -1); | |
1764 | ||
ce558b89 AM |
1765 | splt = htab->root.splt; |
1766 | sgot = htab->root.sgotplt; | |
1767 | srela = htab->root.srelplt; | |
73589c9d CS |
1768 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); |
1769 | ||
1770 | /* Get the index in the procedure linkage table which | |
1771 | corresponds to this symbol. This is the index of this symbol | |
1772 | in all the symbols for which we are making plt entries. The | |
1773 | first entry in the procedure linkage table is reserved. */ | |
1774 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
1775 | ||
1776 | /* Get the offset into the .got table of the entry that | |
1777 | corresponds to this function. Each .got entry is 4 bytes. | |
1778 | The first three are reserved. */ | |
1779 | got_offset = (plt_index + 3) * 4; | |
1780 | got_addr = got_offset; | |
1781 | ||
1782 | /* Fill in the entry in the procedure linkage table. */ | |
0e1862bb | 1783 | if (! bfd_link_pic (info)) |
73589c9d | 1784 | { |
ce558b89 AM |
1785 | got_addr += htab->root.sgotplt->output_section->vma |
1786 | + htab->root.sgotplt->output_offset; | |
73589c9d CS |
1787 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD0 | ((got_addr >> 16) & 0xffff), |
1788 | splt->contents + h->plt.offset); | |
1789 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD1 | (got_addr & 0xffff), | |
1790 | splt->contents + h->plt.offset + 4); | |
1791 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2, | |
1792 | splt->contents + h->plt.offset + 8); | |
1793 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3, | |
1794 | splt->contents + h->plt.offset + 12); | |
1795 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD4 | |
1796 | | plt_index * sizeof (Elf32_External_Rela), | |
1797 | splt->contents + h->plt.offset + 16); | |
1798 | } | |
1799 | else | |
1800 | { | |
1801 | bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD0 | (got_addr & 0xffff), | |
1802 | splt->contents + h->plt.offset); | |
1803 | bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD1 | |
1804 | | plt_index * sizeof (Elf32_External_Rela), | |
1805 | splt->contents + h->plt.offset + 4); | |
1806 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2, | |
1807 | splt->contents + h->plt.offset + 8); | |
1808 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3, | |
1809 | splt->contents + h->plt.offset + 12); | |
1810 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4, | |
1811 | splt->contents + h->plt.offset + 16); | |
1812 | } | |
1813 | ||
1814 | /* Fill in the entry in the global offset table. */ | |
1815 | bfd_put_32 (output_bfd, | |
1816 | (splt->output_section->vma | |
1817 | + splt->output_offset), /* Same offset. */ | |
1818 | sgot->contents + got_offset); | |
1819 | ||
1820 | /* Fill in the entry in the .rela.plt section. */ | |
1821 | rela.r_offset = (sgot->output_section->vma | |
1822 | + sgot->output_offset | |
1823 | + got_offset); | |
1824 | rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_JMP_SLOT); | |
1825 | rela.r_addend = 0; | |
1826 | loc = srela->contents; | |
1827 | loc += plt_index * sizeof (Elf32_External_Rela); | |
1828 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1829 | ||
1830 | if (!h->def_regular) | |
1831 | { | |
1832 | /* Mark the symbol as undefined, rather than as defined in | |
1833 | the .plt section. Leave the value alone. */ | |
1834 | sym->st_shndx = SHN_UNDEF; | |
1835 | } | |
1836 | ||
1837 | } | |
1838 | ||
1839 | if (h->got.offset != (bfd_vma) -1 | |
1840 | && (h->got.offset & 2) == 0) /* Homemade TLS check. */ | |
1841 | { | |
1842 | asection *sgot; | |
1843 | asection *srela; | |
1844 | Elf_Internal_Rela rela; | |
1845 | ||
1846 | /* This symbol has an entry in the global offset table. Set it | |
1847 | up. */ | |
ce558b89 AM |
1848 | sgot = htab->root.sgot; |
1849 | srela = htab->root.srelgot; | |
73589c9d CS |
1850 | BFD_ASSERT (sgot != NULL && srela != NULL); |
1851 | ||
1852 | rela.r_offset = (sgot->output_section->vma | |
1853 | + sgot->output_offset | |
1854 | + (h->got.offset &~ 1)); | |
1855 | ||
1856 | /* If this is a -Bsymbolic link, and the symbol is defined | |
1857 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
1858 | the symbol was forced to be local because of a version file. | |
1859 | The entry in the global offset table will already have been | |
1860 | initialized in the relocate_section function. */ | |
0e1862bb | 1861 | if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h)) |
73589c9d CS |
1862 | { |
1863 | rela.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE); | |
1864 | rela.r_addend = (h->root.u.def.value | |
1865 | + h->root.u.def.section->output_section->vma | |
1866 | + h->root.u.def.section->output_offset); | |
1867 | } | |
1868 | else | |
1869 | { | |
1870 | BFD_ASSERT ((h->got.offset & 1) == 0); | |
1871 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
1872 | rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_GLOB_DAT); | |
1873 | rela.r_addend = 0; | |
1874 | } | |
1875 | ||
1876 | loc = srela->contents; | |
1877 | loc += srela->reloc_count * sizeof (Elf32_External_Rela); | |
1878 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1879 | ++srela->reloc_count; | |
1880 | } | |
1881 | ||
1882 | if (h->needs_copy) | |
1883 | { | |
1884 | asection *s; | |
1885 | Elf_Internal_Rela rela; | |
1886 | ||
1887 | /* This symbols needs a copy reloc. Set it up. */ | |
1888 | BFD_ASSERT (h->dynindx != -1 | |
1889 | && (h->root.type == bfd_link_hash_defined | |
1890 | || h->root.type == bfd_link_hash_defweak)); | |
1891 | ||
73589c9d CS |
1892 | rela.r_offset = (h->root.u.def.value |
1893 | + h->root.u.def.section->output_section->vma | |
1894 | + h->root.u.def.section->output_offset); | |
1895 | rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_COPY); | |
1896 | rela.r_addend = 0; | |
afbf7e8e | 1897 | if (h->root.u.def.section == htab->root.sdynrelro) |
5474d94f AM |
1898 | s = htab->root.sreldynrelro; |
1899 | else | |
1900 | s = htab->root.srelbss; | |
1901 | loc = s->contents + s->reloc_count * sizeof (Elf32_External_Rela); | |
73589c9d CS |
1902 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
1903 | ++s->reloc_count; | |
1904 | } | |
1905 | ||
1906 | /* Mark some specially defined symbols as absolute. */ | |
1907 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
1908 | || h == htab->root.hgot) | |
1909 | sym->st_shndx = SHN_ABS; | |
1910 | ||
1911 | return TRUE; | |
1912 | } | |
1913 | ||
1914 | static enum elf_reloc_type_class | |
1915 | or1k_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1916 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
1917 | const Elf_Internal_Rela *rela) | |
1918 | { | |
1919 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
1920 | { | |
1921 | case R_OR1K_RELATIVE: return reloc_class_relative; | |
1922 | case R_OR1K_JMP_SLOT: return reloc_class_plt; | |
1923 | case R_OR1K_COPY: return reloc_class_copy; | |
1924 | default: return reloc_class_normal; | |
1925 | } | |
1926 | } | |
1927 | ||
1928 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
1929 | regular object. The current definition is in some section of the | |
1930 | dynamic object, but we're not including those sections. We have to | |
1931 | change the definition to something the rest of the link can | |
1932 | understand. */ | |
1933 | ||
1934 | static bfd_boolean | |
1935 | or1k_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
1936 | struct elf_link_hash_entry *h) | |
1937 | { | |
1938 | struct elf_or1k_link_hash_table *htab; | |
1939 | struct elf_or1k_link_hash_entry *eh; | |
1940 | struct elf_or1k_dyn_relocs *p; | |
1941 | bfd *dynobj; | |
5474d94f | 1942 | asection *s, *srel; |
73589c9d CS |
1943 | |
1944 | dynobj = elf_hash_table (info)->dynobj; | |
1945 | ||
1946 | /* Make sure we know what is going on here. */ | |
1947 | BFD_ASSERT (dynobj != NULL | |
1948 | && (h->needs_plt | |
1949 | || h->u.weakdef != NULL | |
1950 | || (h->def_dynamic | |
1951 | && h->ref_regular | |
1952 | && !h->def_regular))); | |
1953 | ||
1954 | /* If this is a function, put it in the procedure linkage table. We | |
1955 | will fill in the contents of the procedure linkage table later, | |
1956 | when we know the address of the .got section. */ | |
1957 | if (h->type == STT_FUNC | |
1958 | || h->needs_plt) | |
1959 | { | |
0e1862bb | 1960 | if (! bfd_link_pic (info) |
73589c9d CS |
1961 | && !h->def_dynamic |
1962 | && !h->ref_dynamic | |
1963 | && h->root.type != bfd_link_hash_undefweak | |
1964 | && h->root.type != bfd_link_hash_undefined) | |
1965 | { | |
1966 | /* This case can occur if we saw a PLT reloc in an input | |
1967 | file, but the symbol was never referred to by a dynamic | |
1968 | object. In such a case, we don't actually need to build | |
1969 | a procedure linkage table, and we can just do a PCREL | |
1970 | reloc instead. */ | |
1971 | h->plt.offset = (bfd_vma) -1; | |
1972 | h->needs_plt = 0; | |
1973 | } | |
1974 | ||
1975 | return TRUE; | |
1976 | } | |
1977 | else | |
1978 | h->plt.offset = (bfd_vma) -1; | |
1979 | ||
1980 | /* If this is a weak symbol, and there is a real definition, the | |
1981 | processor independent code will have arranged for us to see the | |
1982 | real definition first, and we can just use the same value. */ | |
1983 | if (h->u.weakdef != NULL) | |
1984 | { | |
1985 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined | |
1986 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
1987 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
1988 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
1989 | return TRUE; | |
1990 | } | |
1991 | ||
1992 | /* This is a reference to a symbol defined by a dynamic object which | |
1993 | is not a function. */ | |
1994 | ||
1995 | /* If we are creating a shared library, we must presume that the | |
1996 | only references to the symbol are via the global offset table. | |
1997 | For such cases we need not do anything here; the relocations will | |
1998 | be handled correctly by relocate_section. */ | |
0e1862bb | 1999 | if (bfd_link_pic (info)) |
73589c9d CS |
2000 | return TRUE; |
2001 | ||
2002 | /* If there are no references to this symbol that do not use the | |
2003 | GOT, we don't need to generate a copy reloc. */ | |
2004 | if (!h->non_got_ref) | |
2005 | return TRUE; | |
2006 | ||
2007 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
2008 | if (info->nocopyreloc) | |
2009 | { | |
2010 | h->non_got_ref = 0; | |
2011 | return TRUE; | |
2012 | } | |
2013 | ||
2014 | eh = (struct elf_or1k_link_hash_entry *) h; | |
2015 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2016 | { | |
2017 | s = p->sec->output_section; | |
2018 | if (s != NULL && (s->flags & (SEC_READONLY | SEC_HAS_CONTENTS)) != 0) | |
2019 | break; | |
2020 | } | |
2021 | ||
2022 | /* If we didn't find any dynamic relocs in sections which needs the | |
2023 | copy reloc, then we'll be keeping the dynamic relocs and avoiding | |
2024 | the copy reloc. */ | |
2025 | if (p == NULL) | |
2026 | { | |
2027 | h->non_got_ref = 0; | |
2028 | return TRUE; | |
2029 | } | |
2030 | ||
2031 | /* We must allocate the symbol in our .dynbss section, which will | |
2032 | become part of the .bss section of the executable. There will be | |
2033 | an entry for this symbol in the .dynsym section. The dynamic | |
2034 | object will contain position independent code, so all references | |
2035 | from the dynamic object to this symbol will go through the global | |
2036 | offset table. The dynamic linker will use the .dynsym entry to | |
2037 | determine the address it must put in the global offset table, so | |
2038 | both the dynamic object and the regular object will refer to the | |
2039 | same memory location for the variable. */ | |
2040 | ||
2041 | htab = or1k_elf_hash_table (info); | |
2042 | if (htab == NULL) | |
2043 | return FALSE; | |
2044 | ||
73589c9d CS |
2045 | /* We must generate a R_OR1K_COPY reloc to tell the dynamic linker |
2046 | to copy the initial value out of the dynamic object and into the | |
2047 | runtime process image. We need to remember the offset into the | |
2048 | .rela.bss section we are going to use. */ | |
5474d94f | 2049 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
73589c9d | 2050 | { |
5474d94f AM |
2051 | s = htab->root.sdynrelro; |
2052 | srel = htab->root.sreldynrelro; | |
2053 | } | |
2054 | else | |
2055 | { | |
2056 | s = htab->root.sdynbss; | |
9d19e4fd | 2057 | srel = htab->root.srelbss; |
5474d94f AM |
2058 | } |
2059 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) | |
2060 | { | |
73589c9d CS |
2061 | srel->size += sizeof (Elf32_External_Rela); |
2062 | h->needs_copy = 1; | |
2063 | } | |
2064 | ||
6cabe1ea | 2065 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
73589c9d CS |
2066 | } |
2067 | ||
2068 | /* Allocate space in .plt, .got and associated reloc sections for | |
2069 | dynamic relocs. */ | |
2070 | ||
2071 | static bfd_boolean | |
2072 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) | |
2073 | { | |
2074 | struct bfd_link_info *info; | |
2075 | struct elf_or1k_link_hash_table *htab; | |
2076 | struct elf_or1k_link_hash_entry *eh; | |
2077 | struct elf_or1k_dyn_relocs *p; | |
2078 | ||
2079 | if (h->root.type == bfd_link_hash_indirect) | |
2080 | return TRUE; | |
2081 | ||
2082 | info = (struct bfd_link_info *) inf; | |
2083 | htab = or1k_elf_hash_table (info); | |
2084 | if (htab == NULL) | |
2085 | return FALSE; | |
2086 | ||
2087 | eh = (struct elf_or1k_link_hash_entry *) h; | |
2088 | ||
2089 | if (htab->root.dynamic_sections_created | |
2090 | && h->plt.refcount > 0) | |
2091 | { | |
2092 | /* Make sure this symbol is output as a dynamic symbol. | |
2093 | Undefined weak syms won't yet be marked as dynamic. */ | |
2094 | if (h->dynindx == -1 | |
2095 | && !h->forced_local) | |
2096 | { | |
2097 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2098 | return FALSE; | |
2099 | } | |
2100 | ||
0e1862bb | 2101 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
73589c9d | 2102 | { |
ce558b89 | 2103 | asection *s = htab->root.splt; |
73589c9d CS |
2104 | |
2105 | /* If this is the first .plt entry, make room for the special | |
2106 | first entry. */ | |
2107 | if (s->size == 0) | |
2108 | s->size = PLT_ENTRY_SIZE; | |
2109 | ||
2110 | h->plt.offset = s->size; | |
2111 | ||
2112 | /* If this symbol is not defined in a regular file, and we are | |
2113 | not generating a shared library, then set the symbol to this | |
2114 | location in the .plt. This is required to make function | |
2115 | pointers compare as equal between the normal executable and | |
2116 | the shared library. */ | |
0e1862bb | 2117 | if (! bfd_link_pic (info) |
73589c9d CS |
2118 | && !h->def_regular) |
2119 | { | |
2120 | h->root.u.def.section = s; | |
2121 | h->root.u.def.value = h->plt.offset; | |
2122 | } | |
2123 | ||
2124 | /* Make room for this entry. */ | |
2125 | s->size += PLT_ENTRY_SIZE; | |
2126 | ||
2127 | /* We also need to make an entry in the .got.plt section, which | |
2128 | will be placed in the .got section by the linker script. */ | |
ce558b89 | 2129 | htab->root.sgotplt->size += 4; |
73589c9d CS |
2130 | |
2131 | /* We also need to make an entry in the .rel.plt section. */ | |
ce558b89 | 2132 | htab->root.srelplt->size += sizeof (Elf32_External_Rela); |
73589c9d CS |
2133 | } |
2134 | else | |
2135 | { | |
2136 | h->plt.offset = (bfd_vma) -1; | |
2137 | h->needs_plt = 0; | |
2138 | } | |
2139 | } | |
2140 | else | |
2141 | { | |
2142 | h->plt.offset = (bfd_vma) -1; | |
2143 | h->needs_plt = 0; | |
2144 | } | |
2145 | ||
2146 | if (h->got.refcount > 0) | |
2147 | { | |
2148 | asection *s; | |
2149 | bfd_boolean dyn; | |
2150 | unsigned char tls_type; | |
2151 | ||
2152 | /* Make sure this symbol is output as a dynamic symbol. | |
2153 | Undefined weak syms won't yet be marked as dynamic. */ | |
2154 | if (h->dynindx == -1 | |
2155 | && !h->forced_local) | |
2156 | { | |
2157 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2158 | return FALSE; | |
2159 | } | |
2160 | ||
ce558b89 | 2161 | s = htab->root.sgot; |
73589c9d CS |
2162 | |
2163 | h->got.offset = s->size; | |
2164 | ||
2165 | tls_type = ((struct elf_or1k_link_hash_entry *) h)->tls_type; | |
2166 | ||
2167 | /* TLS GD requires two GOT and two relocs. */ | |
2168 | if (tls_type == TLS_GD) | |
2169 | s->size += 8; | |
2170 | else | |
2171 | s->size += 4; | |
2172 | dyn = htab->root.dynamic_sections_created; | |
0e1862bb | 2173 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)) |
73589c9d CS |
2174 | { |
2175 | if (tls_type == TLS_GD) | |
ce558b89 | 2176 | htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela); |
73589c9d | 2177 | else |
ce558b89 | 2178 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); |
73589c9d CS |
2179 | } |
2180 | } | |
2181 | else | |
2182 | h->got.offset = (bfd_vma) -1; | |
2183 | ||
2184 | if (eh->dyn_relocs == NULL) | |
2185 | return TRUE; | |
2186 | ||
2187 | /* In the shared -Bsymbolic case, discard space allocated for | |
2188 | dynamic pc-relative relocs against symbols which turn out to be | |
2189 | defined in regular objects. For the normal shared case, discard | |
2190 | space for pc-relative relocs that have become local due to symbol | |
2191 | visibility changes. */ | |
2192 | ||
0e1862bb | 2193 | if (bfd_link_pic (info)) |
73589c9d | 2194 | { |
ffccb7af | 2195 | if (SYMBOL_CALLS_LOCAL (info, h)) |
73589c9d CS |
2196 | { |
2197 | struct elf_or1k_dyn_relocs **pp; | |
2198 | ||
2199 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL;) | |
2200 | { | |
2201 | p->count -= p->pc_count; | |
2202 | p->pc_count = 0; | |
2203 | if (p->count == 0) | |
2204 | *pp = p->next; | |
2205 | else | |
2206 | pp = &p->next; | |
2207 | } | |
2208 | } | |
2209 | ||
2210 | /* Also discard relocs on undefined weak syms with non-default | |
2211 | visibility. */ | |
2212 | if (eh->dyn_relocs != NULL | |
2213 | && h->root.type == bfd_link_hash_undefweak) | |
2214 | { | |
2215 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
2216 | eh->dyn_relocs = NULL; | |
2217 | ||
2218 | /* Make sure undefined weak symbols are output as a dynamic | |
2219 | symbol in PIEs. */ | |
2220 | else if (h->dynindx == -1 | |
2221 | && !h->forced_local) | |
2222 | { | |
2223 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2224 | return FALSE; | |
2225 | } | |
2226 | } | |
2227 | } | |
2228 | else | |
2229 | { | |
2230 | /* For the non-shared case, discard space for relocs against | |
2231 | symbols which turn out to need copy relocs or are not | |
2232 | dynamic. */ | |
2233 | ||
2234 | if (!h->non_got_ref | |
2235 | && ((h->def_dynamic | |
2236 | && !h->def_regular) | |
2237 | || (htab->root.dynamic_sections_created | |
2238 | && (h->root.type == bfd_link_hash_undefweak | |
2239 | || h->root.type == bfd_link_hash_undefined)))) | |
2240 | { | |
2241 | /* Make sure this symbol is output as a dynamic symbol. | |
2242 | Undefined weak syms won't yet be marked as dynamic. */ | |
2243 | if (h->dynindx == -1 | |
2244 | && !h->forced_local) | |
2245 | { | |
2246 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2247 | return FALSE; | |
2248 | } | |
2249 | ||
2250 | /* If that succeeded, we know we'll be keeping all the | |
2251 | relocs. */ | |
2252 | if (h->dynindx != -1) | |
2253 | goto keep; | |
2254 | } | |
2255 | ||
2256 | eh->dyn_relocs = NULL; | |
2257 | ||
2258 | keep: ; | |
2259 | } | |
2260 | ||
2261 | /* Finally, allocate space. */ | |
2262 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2263 | { | |
2264 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
2265 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
2266 | } | |
2267 | ||
2268 | return TRUE; | |
2269 | } | |
2270 | ||
2271 | /* Find any dynamic relocs that apply to read-only sections. */ | |
2272 | ||
2273 | static bfd_boolean | |
2274 | readonly_dynrelocs (struct elf_link_hash_entry *h, void * inf) | |
2275 | { | |
2276 | struct elf_or1k_link_hash_entry *eh; | |
2277 | struct elf_or1k_dyn_relocs *p; | |
2278 | ||
2279 | eh = (struct elf_or1k_link_hash_entry *) h; | |
2280 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2281 | { | |
2282 | asection *s = p->sec->output_section; | |
2283 | ||
2284 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2285 | { | |
2286 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2287 | ||
2288 | info->flags |= DF_TEXTREL; | |
2289 | ||
2290 | /* Not an error, just cut short the traversal. */ | |
2291 | return FALSE; | |
2292 | } | |
2293 | } | |
2294 | return TRUE; | |
2295 | } | |
2296 | ||
2297 | /* Set the sizes of the dynamic sections. */ | |
2298 | ||
2299 | static bfd_boolean | |
2300 | or1k_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
2301 | struct bfd_link_info *info) | |
2302 | { | |
2303 | struct elf_or1k_link_hash_table *htab; | |
2304 | bfd *dynobj; | |
2305 | asection *s; | |
2306 | bfd_boolean relocs; | |
2307 | bfd *ibfd; | |
2308 | ||
2309 | htab = or1k_elf_hash_table (info); | |
2310 | if (htab == NULL) | |
2311 | return FALSE; | |
2312 | ||
2313 | dynobj = htab->root.dynobj; | |
2314 | BFD_ASSERT (dynobj != NULL); | |
2315 | ||
2316 | if (htab->root.dynamic_sections_created) | |
2317 | { | |
2318 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 2319 | if (bfd_link_executable (info) && !info->nointerp) |
73589c9d CS |
2320 | { |
2321 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
2322 | BFD_ASSERT (s != NULL); | |
2323 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
2324 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2325 | } | |
2326 | } | |
2327 | ||
2328 | /* Set up .got offsets for local syms, and space for local dynamic | |
2329 | relocs. */ | |
c72f2fb2 | 2330 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
73589c9d CS |
2331 | { |
2332 | bfd_signed_vma *local_got; | |
2333 | bfd_signed_vma *end_local_got; | |
2334 | bfd_size_type locsymcount; | |
2335 | Elf_Internal_Shdr *symtab_hdr; | |
2336 | unsigned char *local_tls_type; | |
2337 | asection *srel; | |
2338 | ||
2339 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
2340 | continue; | |
2341 | ||
2342 | for (s = ibfd->sections; s != NULL; s = s->next) | |
2343 | { | |
2344 | struct elf_or1k_dyn_relocs *p; | |
2345 | ||
2346 | for (p = ((struct elf_or1k_dyn_relocs *) | |
2347 | elf_section_data (s)->local_dynrel); | |
2348 | p != NULL; | |
2349 | p = p->next) | |
2350 | { | |
2351 | if (! bfd_is_abs_section (p->sec) | |
2352 | && bfd_is_abs_section (p->sec->output_section)) | |
2353 | { | |
2354 | /* Input section has been discarded, either because | |
2355 | it is a copy of a linkonce section or due to | |
2356 | linker script /DISCARD/, so we'll be discarding | |
2357 | the relocs too. */ | |
2358 | } | |
2359 | else if (p->count != 0) | |
2360 | { | |
2361 | srel = elf_section_data (p->sec)->sreloc; | |
2362 | srel->size += p->count * sizeof (Elf32_External_Rela); | |
2363 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
2364 | info->flags |= DF_TEXTREL; | |
2365 | } | |
2366 | } | |
2367 | } | |
2368 | ||
2369 | local_got = elf_local_got_refcounts (ibfd); | |
2370 | if (!local_got) | |
2371 | continue; | |
2372 | ||
2373 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2374 | locsymcount = symtab_hdr->sh_info; | |
2375 | end_local_got = local_got + locsymcount; | |
ce558b89 AM |
2376 | s = htab->root.sgot; |
2377 | srel = htab->root.srelgot; | |
73589c9d CS |
2378 | local_tls_type = (unsigned char *) elf_or1k_local_tls_type (ibfd); |
2379 | for (; local_got < end_local_got; ++local_got) | |
2380 | { | |
2381 | if (*local_got > 0) | |
2382 | { | |
2383 | *local_got = s->size; | |
2384 | ||
2385 | /* TLS GD requires two GOT and two relocs. */ | |
2386 | if (local_tls_type != NULL && *local_tls_type == TLS_GD) | |
2387 | s->size += 8; | |
2388 | else | |
2389 | s->size += 4; | |
0e1862bb | 2390 | if (bfd_link_pic (info)) |
73589c9d CS |
2391 | { |
2392 | if (local_tls_type != NULL && *local_tls_type == TLS_GD) | |
2393 | srel->size += 2 * sizeof (Elf32_External_Rela); | |
2394 | else | |
2395 | srel->size += sizeof (Elf32_External_Rela); | |
2396 | } | |
2397 | } | |
2398 | else | |
2399 | ||
2400 | *local_got = (bfd_vma) -1; | |
2401 | ||
2402 | if (local_tls_type) | |
2403 | ++local_tls_type; | |
2404 | } | |
2405 | } | |
2406 | ||
2407 | /* Allocate global sym .plt and .got entries, and space for global | |
2408 | sym dynamic relocs. */ | |
2409 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info); | |
2410 | ||
2411 | /* We now have determined the sizes of the various dynamic sections. | |
2412 | Allocate memory for them. */ | |
2413 | relocs = FALSE; | |
2414 | for (s = dynobj->sections; s != NULL; s = s->next) | |
2415 | { | |
2416 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
2417 | continue; | |
2418 | ||
ce558b89 AM |
2419 | if (s == htab->root.splt |
2420 | || s == htab->root.sgot | |
2421 | || s == htab->root.sgotplt | |
5474d94f AM |
2422 | || s == htab->root.sdynbss |
2423 | || s == htab->root.sdynrelro) | |
73589c9d CS |
2424 | { |
2425 | /* Strip this section if we don't need it; see the | |
2426 | comment below. */ | |
2427 | } | |
2428 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) | |
2429 | { | |
ce558b89 | 2430 | if (s->size != 0 && s != htab->root.srelplt) |
73589c9d CS |
2431 | relocs = TRUE; |
2432 | ||
2433 | /* We use the reloc_count field as a counter if we need | |
2434 | to copy relocs into the output file. */ | |
2435 | s->reloc_count = 0; | |
2436 | } | |
2437 | else | |
2438 | /* It's not one of our sections, so don't allocate space. */ | |
2439 | continue; | |
2440 | ||
2441 | if (s->size == 0) | |
2442 | { | |
2443 | /* If we don't need this section, strip it from the | |
2444 | output file. This is mostly to handle .rela.bss and | |
2445 | .rela.plt. We must create both sections in | |
2446 | create_dynamic_sections, because they must be created | |
2447 | before the linker maps input sections to output | |
2448 | sections. The linker does that before | |
2449 | adjust_dynamic_symbol is called, and it is that | |
2450 | function which decides whether anything needs to go | |
2451 | into these sections. */ | |
2452 | s->flags |= SEC_EXCLUDE; | |
2453 | continue; | |
2454 | } | |
2455 | ||
2456 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
2457 | continue; | |
2458 | ||
2459 | /* Allocate memory for the section contents. We use bfd_zalloc | |
2460 | here in case unused entries are not reclaimed before the | |
2461 | section's contents are written out. This should not happen, | |
2462 | but this way if it does, we get a R_OR1K_NONE reloc instead | |
2463 | of garbage. */ | |
2464 | s->contents = bfd_zalloc (dynobj, s->size); | |
2465 | ||
2466 | if (s->contents == NULL) | |
2467 | return FALSE; | |
2468 | } | |
2469 | ||
2470 | if (htab->root.dynamic_sections_created) | |
2471 | { | |
2472 | /* Add some entries to the .dynamic section. We fill in the | |
2473 | values later, in or1k_elf_finish_dynamic_sections, but we | |
2474 | must add the entries now so that we get the correct size for | |
2475 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2476 | dynamic linker and used by the debugger. */ | |
2477 | #define add_dynamic_entry(TAG, VAL) \ | |
2478 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
2479 | ||
0e1862bb | 2480 | if (bfd_link_executable (info)) |
73589c9d CS |
2481 | { |
2482 | if (! add_dynamic_entry (DT_DEBUG, 0)) | |
2483 | return FALSE; | |
2484 | } | |
2485 | ||
ce558b89 | 2486 | if (htab->root.splt->size != 0) |
73589c9d CS |
2487 | { |
2488 | if (! add_dynamic_entry (DT_PLTGOT, 0) | |
2489 | || ! add_dynamic_entry (DT_PLTRELSZ, 0) | |
2490 | || ! add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2491 | || ! add_dynamic_entry (DT_JMPREL, 0)) | |
2492 | return FALSE; | |
2493 | } | |
2494 | ||
2495 | if (relocs) | |
2496 | { | |
2497 | if (! add_dynamic_entry (DT_RELA, 0) | |
2498 | || ! add_dynamic_entry (DT_RELASZ, 0) | |
2499 | || ! add_dynamic_entry (DT_RELAENT, | |
2500 | sizeof (Elf32_External_Rela))) | |
2501 | return FALSE; | |
2502 | ||
2503 | /* If any dynamic relocs apply to a read-only section, | |
2504 | then we need a DT_TEXTREL entry. */ | |
2505 | if ((info->flags & DF_TEXTREL) == 0) | |
2506 | elf_link_hash_traverse (&htab->root, readonly_dynrelocs, | |
2507 | info); | |
2508 | ||
2509 | if ((info->flags & DF_TEXTREL) != 0) | |
2510 | { | |
2511 | if (! add_dynamic_entry (DT_TEXTREL, 0)) | |
2512 | return FALSE; | |
2513 | } | |
2514 | } | |
2515 | } | |
2516 | ||
2517 | #undef add_dynamic_entry | |
2518 | return TRUE; | |
2519 | } | |
2520 | ||
73589c9d CS |
2521 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
2522 | ||
2523 | static void | |
2524 | or1k_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
2525 | struct elf_link_hash_entry *dir, | |
2526 | struct elf_link_hash_entry *ind) | |
2527 | { | |
2528 | struct elf_or1k_link_hash_entry * edir; | |
2529 | struct elf_or1k_link_hash_entry * eind; | |
2530 | ||
2531 | edir = (struct elf_or1k_link_hash_entry *) dir; | |
2532 | eind = (struct elf_or1k_link_hash_entry *) ind; | |
2533 | ||
2534 | if (eind->dyn_relocs != NULL) | |
2535 | { | |
2536 | if (edir->dyn_relocs != NULL) | |
2537 | { | |
2538 | struct elf_or1k_dyn_relocs **pp; | |
2539 | struct elf_or1k_dyn_relocs *p; | |
2540 | ||
2541 | /* Add reloc counts against the indirect sym to the direct sym | |
2542 | list. Merge any entries against the same section. */ | |
2543 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL;) | |
2544 | { | |
2545 | struct elf_or1k_dyn_relocs *q; | |
2546 | ||
2547 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
2548 | if (q->sec == p->sec) | |
2549 | { | |
2550 | q->pc_count += p->pc_count; | |
2551 | q->count += p->count; | |
2552 | *pp = p->next; | |
2553 | break; | |
2554 | } | |
2555 | if (q == NULL) | |
2556 | pp = &p->next; | |
2557 | } | |
2558 | *pp = edir->dyn_relocs; | |
2559 | } | |
2560 | ||
2561 | edir->dyn_relocs = eind->dyn_relocs; | |
2562 | eind->dyn_relocs = NULL; | |
2563 | } | |
2564 | ||
2565 | if (ind->root.type == bfd_link_hash_indirect) | |
2566 | { | |
2567 | if (dir->got.refcount <= 0) | |
2568 | { | |
2569 | edir->tls_type = eind->tls_type; | |
2570 | eind->tls_type = TLS_UNKNOWN; | |
2571 | } | |
2572 | } | |
2573 | ||
2574 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
2575 | } | |
2576 | ||
2577 | /* Set the right machine number. */ | |
2578 | ||
2579 | static bfd_boolean | |
2580 | or1k_elf_object_p (bfd *abfd) | |
2581 | { | |
2582 | unsigned long mach = bfd_mach_or1k; | |
2583 | ||
2584 | if (elf_elfheader (abfd)->e_flags & EF_OR1K_NODELAY) | |
2585 | mach = bfd_mach_or1knd; | |
2586 | ||
2587 | return bfd_default_set_arch_mach (abfd, bfd_arch_or1k, mach); | |
2588 | } | |
2589 | ||
2590 | /* Store the machine number in the flags field. */ | |
2591 | ||
2592 | static void | |
2593 | or1k_elf_final_write_processing (bfd *abfd, | |
2594 | bfd_boolean linker ATTRIBUTE_UNUSED) | |
2595 | { | |
2596 | switch (bfd_get_mach (abfd)) | |
2597 | { | |
2598 | default: | |
2599 | case bfd_mach_or1k: | |
2600 | break; | |
2601 | case bfd_mach_or1knd: | |
2602 | elf_elfheader (abfd)->e_flags |= EF_OR1K_NODELAY; | |
2603 | break; | |
2604 | } | |
2605 | } | |
2606 | ||
2607 | static bfd_boolean | |
2608 | or1k_elf_set_private_flags (bfd *abfd, flagword flags) | |
2609 | { | |
2610 | BFD_ASSERT (!elf_flags_init (abfd) | |
2611 | || elf_elfheader (abfd)->e_flags == flags); | |
2612 | ||
2613 | elf_elfheader (abfd)->e_flags = flags; | |
2614 | elf_flags_init (abfd) = TRUE; | |
2615 | return TRUE; | |
2616 | } | |
2617 | ||
2618 | /* Make sure all input files are consistent with respect to | |
2619 | EF_OR1K_NODELAY flag setting. */ | |
2620 | ||
2621 | static bfd_boolean | |
50e03d47 | 2622 | elf32_or1k_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
73589c9d | 2623 | { |
50e03d47 | 2624 | bfd *obfd = info->output_bfd; |
73589c9d CS |
2625 | flagword out_flags; |
2626 | flagword in_flags; | |
2627 | ||
2628 | in_flags = elf_elfheader (ibfd)->e_flags; | |
2629 | out_flags = elf_elfheader (obfd)->e_flags; | |
2630 | ||
2631 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2632 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
2633 | return TRUE; | |
2634 | ||
2635 | if (!elf_flags_init (obfd)) | |
2636 | { | |
2637 | elf_flags_init (obfd) = TRUE; | |
2638 | elf_elfheader (obfd)->e_flags = in_flags; | |
2639 | ||
2640 | return TRUE; | |
2641 | } | |
2642 | ||
2643 | if (in_flags == out_flags) | |
2644 | return TRUE; | |
2645 | ||
2646 | if ((in_flags & EF_OR1K_NODELAY) != (out_flags & EF_OR1K_NODELAY)) | |
2647 | { | |
4eca0228 | 2648 | _bfd_error_handler |
73589c9d CS |
2649 | (_("%B: EF_OR1K_NODELAY flag mismatch with previous modules"), ibfd); |
2650 | ||
2651 | bfd_set_error (bfd_error_bad_value); | |
2652 | return FALSE; | |
2653 | } | |
2654 | ||
2655 | return TRUE; | |
2656 | ||
2657 | } | |
2658 | ||
2659 | #define ELF_ARCH bfd_arch_or1k | |
2660 | #define ELF_MACHINE_CODE EM_OR1K | |
2661 | #define ELF_TARGET_ID OR1K_ELF_DATA | |
2662 | #define ELF_MAXPAGESIZE 0x2000 | |
2663 | ||
6d00b590 | 2664 | #define TARGET_BIG_SYM or1k_elf32_vec |
73589c9d CS |
2665 | #define TARGET_BIG_NAME "elf32-or1k" |
2666 | ||
2667 | #define elf_info_to_howto_rel NULL | |
2668 | #define elf_info_to_howto or1k_info_to_howto_rela | |
2669 | #define elf_backend_relocate_section or1k_elf_relocate_section | |
2670 | #define elf_backend_gc_mark_hook or1k_elf_gc_mark_hook | |
73589c9d CS |
2671 | #define elf_backend_check_relocs or1k_elf_check_relocs |
2672 | #define elf_backend_reloc_type_class or1k_elf_reloc_type_class | |
2673 | #define elf_backend_can_gc_sections 1 | |
2674 | #define elf_backend_rela_normal 1 | |
2675 | ||
2676 | #define bfd_elf32_mkobject elf_or1k_mkobject | |
2677 | ||
2678 | #define bfd_elf32_bfd_merge_private_bfd_data elf32_or1k_merge_private_bfd_data | |
2679 | #define bfd_elf32_bfd_set_private_flags or1k_elf_set_private_flags | |
2680 | #define bfd_elf32_bfd_reloc_type_lookup or1k_reloc_type_lookup | |
2681 | #define bfd_elf32_bfd_reloc_name_lookup or1k_reloc_name_lookup | |
2682 | ||
2683 | #define elf_backend_object_p or1k_elf_object_p | |
2684 | #define elf_backend_final_write_processing or1k_elf_final_write_processing | |
2685 | #define elf_backend_can_refcount 1 | |
2686 | ||
2687 | #define elf_backend_plt_readonly 1 | |
2688 | #define elf_backend_want_got_plt 1 | |
2689 | #define elf_backend_want_plt_sym 0 | |
2690 | #define elf_backend_got_header_size 12 | |
64f52338 | 2691 | #define elf_backend_dtrel_excludes_plt 1 |
5474d94f | 2692 | #define elf_backend_want_dynrelro 1 |
64f52338 | 2693 | |
73589c9d CS |
2694 | #define bfd_elf32_bfd_link_hash_table_create or1k_elf_link_hash_table_create |
2695 | #define elf_backend_copy_indirect_symbol or1k_elf_copy_indirect_symbol | |
9d19e4fd | 2696 | #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections |
73589c9d CS |
2697 | #define elf_backend_finish_dynamic_sections or1k_elf_finish_dynamic_sections |
2698 | #define elf_backend_size_dynamic_sections or1k_elf_size_dynamic_sections | |
2699 | #define elf_backend_adjust_dynamic_symbol or1k_elf_adjust_dynamic_symbol | |
2700 | #define elf_backend_finish_dynamic_symbol or1k_elf_finish_dynamic_symbol | |
2701 | ||
2702 | #include "elf32-target.h" |