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73589c9d | 1 | /* Or1k-specific support for 32-bit ELF. |
219d1afa | 2 | Copyright (C) 2001-2018 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. */ | |
07d6d2b8 AM |
61 | HOWTO (R_OR1K_NONE, /* type */ |
62 | 0, /* rightshift */ | |
63 | 3, /* size (0 = byte, 1 = short, 2 = long) */ | |
64 | 0, /* bitsize */ | |
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 */ | |
73589c9d CS |
74 | |
75 | HOWTO (R_OR1K_32, | |
07d6d2b8 AM |
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 */ | |
73589c9d CS |
88 | |
89 | HOWTO (R_OR1K_16, | |
07d6d2b8 AM |
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 */ | |
73589c9d CS |
102 | |
103 | HOWTO (R_OR1K_8, | |
07d6d2b8 AM |
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 */ | |
73589c9d CS |
116 | |
117 | HOWTO (R_OR1K_LO_16_IN_INSN, /* type */ | |
07d6d2b8 AM |
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 */ | |
73589c9d CS |
130 | |
131 | HOWTO (R_OR1K_HI_16_IN_INSN, /* type */ | |
07d6d2b8 AM |
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 */ | |
73589c9d CS |
144 | |
145 | /* A PC relative 26 bit relocation, right shifted by 2. */ | |
146 | HOWTO (R_OR1K_INSN_REL_26, /* type */ | |
07d6d2b8 AM |
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 */ | |
73589c9d CS |
159 | |
160 | /* GNU extension to record C++ vtable hierarchy. */ | |
161 | HOWTO (R_OR1K_GNU_VTINHERIT, /* type */ | |
07d6d2b8 AM |
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 */ | |
73589c9d CS |
174 | |
175 | /* GNU extension to record C++ vtable member usage. */ | |
176 | HOWTO (R_OR1K_GNU_VTENTRY, /* type */ | |
07d6d2b8 AM |
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 */ | |
73589c9d CS |
189 | |
190 | HOWTO (R_OR1K_32_PCREL, | |
07d6d2b8 AM |
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 */ | |
202 | TRUE), /* pcrel_offset */ | |
73589c9d CS |
203 | |
204 | HOWTO (R_OR1K_16_PCREL, | |
07d6d2b8 AM |
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 */ | |
216 | TRUE), /* pcrel_offset */ | |
73589c9d CS |
217 | |
218 | HOWTO (R_OR1K_8_PCREL, | |
07d6d2b8 AM |
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 */ | |
230 | TRUE), /* pcrel_offset */ | |
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 */ | |
73589c9d CS |
273 | |
274 | /* A 26 bit PLT relocation. Shifted by 2. */ | |
07d6d2b8 AM |
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 */ | |
73589c9d CS |
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 | { | |
07d6d2b8 AM |
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 }, | |
73589c9d CS |
541 | { BFD_RELOC_OR1K_GOTOFF_HI16, R_OR1K_GOTOFF_HI16 }, |
542 | { BFD_RELOC_OR1K_GOTOFF_LO16, R_OR1K_GOTOFF_LO16 }, | |
07d6d2b8 AM |
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 }, | |
73589c9d CS |
547 | { BFD_RELOC_OR1K_TLS_GD_HI16, R_OR1K_TLS_GD_HI16 }, |
548 | { BFD_RELOC_OR1K_TLS_GD_LO16, R_OR1K_TLS_GD_LO16 }, | |
07d6d2b8 AM |
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 }, | |
73589c9d CS |
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 | ||
73589c9d CS |
559 | #define TLS_UNKNOWN 0 |
560 | #define TLS_NONE 1 | |
07d6d2b8 AM |
561 | #define TLS_GD 2 |
562 | #define TLS_LD 3 | |
563 | #define TLS_IE 4 | |
564 | #define TLS_LE 5 | |
73589c9d CS |
565 | |
566 | /* ELF linker hash entry. */ | |
567 | struct elf_or1k_link_hash_entry | |
568 | { | |
569 | struct elf_link_hash_entry root; | |
570 | ||
571 | /* Track dynamic relocs copied for this symbol. */ | |
3bf083ed | 572 | struct elf_dyn_relocs *dyn_relocs; |
73589c9d CS |
573 | |
574 | /* Track type of TLS access. */ | |
575 | unsigned char tls_type; | |
576 | }; | |
577 | ||
578 | /* ELF object data. */ | |
579 | struct elf_or1k_obj_tdata | |
580 | { | |
581 | struct elf_obj_tdata root; | |
582 | ||
583 | /* tls_type for each local got entry. */ | |
584 | unsigned char *local_tls_type; | |
585 | }; | |
586 | ||
587 | #define elf_or1k_tdata(abfd) \ | |
588 | ((struct elf_or1k_obj_tdata *) (abfd)->tdata.any) | |
589 | ||
590 | #define elf_or1k_local_tls_type(abfd) \ | |
591 | (elf_or1k_tdata (abfd)->local_tls_type) | |
592 | ||
593 | /* ELF linker hash table. */ | |
594 | struct elf_or1k_link_hash_table | |
595 | { | |
596 | struct elf_link_hash_table root; | |
597 | ||
73589c9d CS |
598 | /* Small local sym to section mapping cache. */ |
599 | struct sym_cache sym_sec; | |
600 | }; | |
601 | ||
602 | /* Get the ELF linker hash table from a link_info structure. */ | |
603 | #define or1k_elf_hash_table(p) \ | |
604 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ | |
605 | == OR1K_ELF_DATA ? ((struct elf_or1k_link_hash_table *) ((p)->hash)) : NULL) | |
606 | ||
607 | static bfd_boolean | |
608 | elf_or1k_mkobject (bfd *abfd) | |
609 | { | |
610 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_or1k_obj_tdata), | |
07d6d2b8 | 611 | OR1K_ELF_DATA); |
73589c9d CS |
612 | } |
613 | ||
614 | /* Create an entry in an or1k ELF linker hash table. */ | |
615 | ||
616 | static struct bfd_hash_entry * | |
617 | or1k_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
07d6d2b8 AM |
618 | struct bfd_hash_table *table, |
619 | const char *string) | |
73589c9d CS |
620 | { |
621 | struct elf_or1k_link_hash_entry *ret = | |
622 | (struct elf_or1k_link_hash_entry *) entry; | |
623 | ||
624 | /* Allocate the structure if it has not already been allocated by a | |
625 | subclass. */ | |
626 | if (ret == NULL) | |
627 | ret = bfd_hash_allocate (table, | |
07d6d2b8 | 628 | sizeof (struct elf_or1k_link_hash_entry)); |
73589c9d CS |
629 | if (ret == NULL) |
630 | return NULL; | |
631 | ||
632 | /* Call the allocation method of the superclass. */ | |
633 | ret = ((struct elf_or1k_link_hash_entry *) | |
07d6d2b8 AM |
634 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
635 | table, string)); | |
73589c9d CS |
636 | if (ret != NULL) |
637 | { | |
638 | struct elf_or1k_link_hash_entry *eh; | |
639 | ||
640 | eh = (struct elf_or1k_link_hash_entry *) ret; | |
641 | eh->dyn_relocs = NULL; | |
642 | eh->tls_type = TLS_UNKNOWN; | |
643 | } | |
644 | ||
645 | return (struct bfd_hash_entry *) ret; | |
646 | } | |
647 | ||
648 | /* Create an or1k ELF linker hash table. */ | |
649 | ||
650 | static struct bfd_link_hash_table * | |
651 | or1k_elf_link_hash_table_create (bfd *abfd) | |
652 | { | |
653 | struct elf_or1k_link_hash_table *ret; | |
654 | bfd_size_type amt = sizeof (struct elf_or1k_link_hash_table); | |
655 | ||
656 | ret = bfd_zmalloc (amt); | |
657 | if (ret == NULL) | |
658 | return NULL; | |
659 | ||
660 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, | |
07d6d2b8 AM |
661 | or1k_elf_link_hash_newfunc, |
662 | sizeof (struct elf_or1k_link_hash_entry), | |
663 | OR1K_ELF_DATA)) | |
73589c9d CS |
664 | { |
665 | free (ret); | |
666 | return NULL; | |
667 | } | |
668 | ||
669 | return &ret->root.root; | |
670 | } | |
671 | ||
672 | static reloc_howto_type * | |
673 | or1k_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, | |
674 | bfd_reloc_code_real_type code) | |
675 | { | |
676 | unsigned int i; | |
677 | ||
0ba38529 | 678 | for (i = ARRAY_SIZE (or1k_reloc_map); i--;) |
73589c9d CS |
679 | if (or1k_reloc_map[i].bfd_reloc_val == code) |
680 | return & or1k_elf_howto_table[or1k_reloc_map[i].or1k_reloc_val]; | |
681 | ||
682 | return NULL; | |
683 | } | |
684 | ||
685 | static reloc_howto_type * | |
686 | or1k_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
687 | const char *r_name) | |
688 | { | |
689 | unsigned int i; | |
690 | ||
691 | for (i = 0; | |
692 | i < (sizeof (or1k_elf_howto_table) | |
07d6d2b8 | 693 | / sizeof (or1k_elf_howto_table[0])); |
73589c9d CS |
694 | i++) |
695 | if (or1k_elf_howto_table[i].name != NULL | |
07d6d2b8 | 696 | && strcasecmp (or1k_elf_howto_table[i].name, r_name) == 0) |
73589c9d CS |
697 | return &or1k_elf_howto_table[i]; |
698 | ||
699 | return NULL; | |
700 | } | |
701 | ||
702 | /* Set the howto pointer for an Or1k ELF reloc. */ | |
703 | ||
704 | static void | |
0aa13fee | 705 | or1k_info_to_howto_rela (bfd * abfd, |
73589c9d CS |
706 | arelent * cache_ptr, |
707 | Elf_Internal_Rela * dst) | |
708 | { | |
709 | unsigned int r_type; | |
710 | ||
711 | r_type = ELF32_R_TYPE (dst->r_info); | |
5860e3f8 NC |
712 | if (r_type >= (unsigned int) R_OR1K_max) |
713 | { | |
695344c0 | 714 | /* xgettext:c-format */ |
0aa13fee AM |
715 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
716 | abfd, r_type); | |
5860e3f8 NC |
717 | r_type = 0; |
718 | } | |
73589c9d CS |
719 | cache_ptr->howto = & or1k_elf_howto_table[r_type]; |
720 | } | |
721 | ||
722 | ||
723 | /* Return the relocation value for @tpoff relocations.. */ | |
724 | static bfd_vma | |
725 | tpoff (struct bfd_link_info *info, bfd_vma address) | |
726 | { | |
727 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
728 | if (elf_hash_table (info)->tls_sec == NULL) | |
729 | return 0; | |
730 | ||
731 | /* The thread pointer on or1k stores the address after the TCB where | |
732 | the data is, just compute the difference. No need to compensate | |
733 | for the size of TCB. */ | |
734 | return (address - elf_hash_table (info)->tls_sec->vma); | |
735 | } | |
736 | ||
737 | /* Relocate an Or1k ELF section. | |
738 | ||
739 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
740 | to handle the relocations for a section. | |
741 | ||
742 | The relocs are always passed as Rela structures; if the section | |
743 | actually uses Rel structures, the r_addend field will always be | |
744 | zero. | |
745 | ||
746 | This function is responsible for adjusting the section contents as | |
747 | necessary, and (if using Rela relocs and generating a relocatable | |
748 | output file) adjusting the reloc addend as necessary. | |
749 | ||
750 | This function does not have to worry about setting the reloc | |
751 | address or the reloc symbol index. | |
752 | ||
753 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
754 | ||
755 | LOCAL_SECTIONS is an array giving the section in the input file | |
756 | corresponding to the st_shndx field of each local symbol. | |
757 | ||
758 | The global hash table entry for the global symbols can be found | |
759 | via elf_sym_hashes (input_bfd). | |
760 | ||
761 | When generating relocatable output, this function must handle | |
762 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
763 | going to be the section symbol corresponding to the output | |
764 | section, which means that the addend must be adjusted | |
765 | accordingly. */ | |
766 | ||
767 | static bfd_boolean | |
768 | or1k_elf_relocate_section (bfd *output_bfd, | |
769 | struct bfd_link_info *info, | |
770 | bfd *input_bfd, | |
771 | asection *input_section, | |
772 | bfd_byte *contents, | |
773 | Elf_Internal_Rela *relocs, | |
774 | Elf_Internal_Sym *local_syms, | |
775 | asection **local_sections) | |
776 | { | |
777 | Elf_Internal_Shdr *symtab_hdr; | |
778 | struct elf_link_hash_entry **sym_hashes; | |
779 | Elf_Internal_Rela *rel; | |
780 | Elf_Internal_Rela *relend; | |
781 | struct elf_or1k_link_hash_table *htab = or1k_elf_hash_table (info); | |
782 | bfd *dynobj; | |
783 | asection *sreloc; | |
784 | bfd_vma *local_got_offsets; | |
785 | asection *sgot; | |
786 | ||
787 | if (htab == NULL) | |
788 | return FALSE; | |
789 | ||
790 | dynobj = htab->root.dynobj; | |
791 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
792 | ||
793 | sreloc = elf_section_data (input_section)->sreloc; | |
794 | ||
ce558b89 | 795 | sgot = htab->root.sgot; |
73589c9d CS |
796 | |
797 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
798 | sym_hashes = elf_sym_hashes (input_bfd); | |
799 | relend = relocs + input_section->reloc_count; | |
800 | ||
801 | for (rel = relocs; rel < relend; rel++) | |
802 | { | |
803 | reloc_howto_type *howto; | |
804 | unsigned long r_symndx; | |
805 | Elf_Internal_Sym *sym; | |
806 | asection *sec; | |
807 | struct elf_link_hash_entry *h; | |
808 | bfd_vma relocation; | |
809 | bfd_reloc_status_type r; | |
810 | const char *name = NULL; | |
811 | int r_type; | |
812 | ||
813 | r_type = ELF32_R_TYPE (rel->r_info); | |
814 | r_symndx = ELF32_R_SYM (rel->r_info); | |
815 | ||
816 | if (r_type == R_OR1K_GNU_VTINHERIT | |
07d6d2b8 AM |
817 | || r_type == R_OR1K_GNU_VTENTRY) |
818 | continue; | |
73589c9d CS |
819 | |
820 | if (r_type < 0 || r_type >= (int) R_OR1K_max) | |
07d6d2b8 AM |
821 | { |
822 | bfd_set_error (bfd_error_bad_value); | |
823 | return FALSE; | |
824 | } | |
73589c9d CS |
825 | |
826 | howto = or1k_elf_howto_table + ELF32_R_TYPE (rel->r_info); | |
827 | h = NULL; | |
828 | sym = NULL; | |
829 | sec = NULL; | |
830 | ||
831 | if (r_symndx < symtab_hdr->sh_info) | |
07d6d2b8 AM |
832 | { |
833 | sym = local_syms + r_symndx; | |
834 | sec = local_sections[r_symndx]; | |
835 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
836 | ||
837 | name = bfd_elf_string_from_elf_section | |
838 | (input_bfd, symtab_hdr->sh_link, sym->st_name); | |
839 | name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name; | |
840 | } | |
73589c9d | 841 | else |
07d6d2b8 AM |
842 | { |
843 | bfd_boolean unresolved_reloc, warned, ignored; | |
73589c9d | 844 | |
07d6d2b8 AM |
845 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
846 | r_symndx, symtab_hdr, sym_hashes, | |
847 | h, sec, relocation, | |
848 | unresolved_reloc, warned, ignored); | |
849 | } | |
73589c9d CS |
850 | |
851 | if (sec != NULL && discarded_section (sec)) | |
07d6d2b8 AM |
852 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
853 | rel, 1, relend, howto, 0, contents); | |
73589c9d | 854 | |
0e1862bb | 855 | if (bfd_link_relocatable (info)) |
07d6d2b8 | 856 | continue; |
73589c9d CS |
857 | |
858 | switch (howto->type) | |
07d6d2b8 AM |
859 | { |
860 | case R_OR1K_PLT26: | |
861 | { | |
862 | if (htab->root.splt != NULL && h != NULL | |
863 | && h->plt.offset != (bfd_vma) -1) | |
864 | { | |
865 | relocation = (htab->root.splt->output_section->vma | |
866 | + htab->root.splt->output_offset | |
867 | + h->plt.offset); | |
868 | } | |
869 | break; | |
870 | } | |
871 | ||
872 | case R_OR1K_GOT16: | |
873 | /* Relocation is to the entry for this symbol in the global | |
874 | offset table. */ | |
875 | BFD_ASSERT (sgot != NULL); | |
876 | if (h != NULL) | |
877 | { | |
878 | bfd_boolean dyn; | |
879 | bfd_vma off; | |
880 | ||
881 | off = h->got.offset; | |
882 | BFD_ASSERT (off != (bfd_vma) -1); | |
883 | ||
884 | dyn = htab->root.dynamic_sections_created; | |
885 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, | |
0e1862bb L |
886 | bfd_link_pic (info), |
887 | h) | |
07d6d2b8 AM |
888 | || (bfd_link_pic (info) |
889 | && SYMBOL_REFERENCES_LOCAL (info, h))) | |
890 | { | |
891 | /* This is actually a static link, or it is a | |
892 | -Bsymbolic link and the symbol is defined | |
893 | locally, or the symbol was forced to be local | |
894 | because of a version file. We must initialize | |
895 | this entry in the global offset table. Since the | |
896 | offset must always be a multiple of 4, we use the | |
897 | least significant bit to record whether we have | |
898 | initialized it already. | |
899 | ||
900 | When doing a dynamic link, we create a .rela.got | |
901 | relocation entry to initialize the value. This | |
902 | is done in the finish_dynamic_symbol routine. */ | |
903 | if ((off & 1) != 0) | |
904 | off &= ~1; | |
905 | else | |
906 | { | |
907 | /* Write entry in GOT. */ | |
908 | bfd_put_32 (output_bfd, relocation, | |
909 | sgot->contents + off); | |
910 | /* Mark GOT entry as having been written. */ | |
911 | h->got.offset |= 1; | |
912 | } | |
913 | } | |
914 | ||
915 | relocation = sgot->output_offset + off; | |
916 | } | |
917 | else | |
918 | { | |
919 | bfd_vma off; | |
920 | bfd_byte *loc; | |
921 | ||
922 | BFD_ASSERT (local_got_offsets != NULL | |
923 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
924 | ||
925 | /* Get offset into GOT table. */ | |
926 | off = local_got_offsets[r_symndx]; | |
927 | ||
928 | /* The offset must always be a multiple of 4. We use | |
929 | the least significant bit to record whether we have | |
930 | already processed this entry. */ | |
931 | if ((off & 1) != 0) | |
932 | off &= ~1; | |
933 | else | |
934 | { | |
935 | /* Write entry in GOT. */ | |
936 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
937 | if (bfd_link_pic (info)) | |
938 | { | |
939 | asection *srelgot; | |
940 | Elf_Internal_Rela outrel; | |
941 | ||
942 | /* We need to generate a R_OR1K_RELATIVE reloc | |
943 | for the dynamic linker. */ | |
944 | srelgot = htab->root.srelgot; | |
945 | BFD_ASSERT (srelgot != NULL); | |
946 | ||
947 | outrel.r_offset = (sgot->output_section->vma | |
948 | + sgot->output_offset | |
949 | + off); | |
950 | outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE); | |
951 | outrel.r_addend = relocation; | |
952 | loc = srelgot->contents; | |
953 | loc += srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
954 | bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc); | |
955 | ++srelgot->reloc_count; | |
956 | } | |
957 | ||
958 | local_got_offsets[r_symndx] |= 1; | |
959 | } | |
960 | relocation = sgot->output_offset + off; | |
961 | } | |
962 | ||
963 | /* Addend should be zero. */ | |
964 | if (rel->r_addend != 0) | |
4eca0228 | 965 | _bfd_error_handler |
38f14ab8 AM |
966 | (_("internal error: addend should be zero for %s"), |
967 | "R_OR1K_GOT16"); | |
73589c9d | 968 | |
07d6d2b8 | 969 | break; |
73589c9d | 970 | |
07d6d2b8 AM |
971 | case R_OR1K_GOTOFF_LO16: |
972 | case R_OR1K_GOTOFF_HI16: | |
973 | /* Relocation is offset from GOT. */ | |
974 | BFD_ASSERT (sgot != NULL); | |
eacfca90 AM |
975 | relocation |
976 | -= (htab->root.hgot->root.u.def.value | |
977 | + htab->root.hgot->root.u.def.section->output_offset | |
978 | + htab->root.hgot->root.u.def.section->output_section->vma); | |
07d6d2b8 AM |
979 | break; |
980 | ||
981 | case R_OR1K_INSN_REL_26: | |
982 | case R_OR1K_HI_16_IN_INSN: | |
983 | case R_OR1K_LO_16_IN_INSN: | |
984 | case R_OR1K_32: | |
985 | /* R_OR1K_16? */ | |
986 | { | |
987 | /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols | |
988 | from removed linkonce sections, or sections discarded by | |
989 | a linker script. */ | |
990 | if (r_symndx == STN_UNDEF | |
991 | || (input_section->flags & SEC_ALLOC) == 0) | |
992 | break; | |
993 | ||
994 | if ((bfd_link_pic (info) | |
995 | && (h == NULL | |
996 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
997 | || h->root.type != bfd_link_hash_undefweak) | |
ffccb7af SK |
998 | && (howto->type != R_OR1K_INSN_REL_26 |
999 | || !SYMBOL_CALLS_LOCAL (info, h))) | |
07d6d2b8 AM |
1000 | || (!bfd_link_pic (info) |
1001 | && h != NULL | |
1002 | && h->dynindx != -1 | |
1003 | && !h->non_got_ref | |
1004 | && ((h->def_dynamic | |
1005 | && !h->def_regular) | |
1006 | || h->root.type == bfd_link_hash_undefweak | |
1007 | || h->root.type == bfd_link_hash_undefined))) | |
1008 | { | |
1009 | Elf_Internal_Rela outrel; | |
1010 | bfd_byte *loc; | |
1011 | bfd_boolean skip; | |
1012 | ||
1013 | /* When generating a shared object, these relocations | |
1014 | are copied into the output file to be resolved at run | |
1015 | time. */ | |
1016 | ||
1017 | BFD_ASSERT (sreloc != NULL); | |
1018 | ||
1019 | skip = FALSE; | |
1020 | ||
1021 | outrel.r_offset = | |
1022 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
1023 | rel->r_offset); | |
1024 | if (outrel.r_offset == (bfd_vma) -1) | |
1025 | skip = TRUE; | |
1026 | else if (outrel.r_offset == (bfd_vma) -2) | |
1027 | skip = TRUE; | |
1028 | outrel.r_offset += (input_section->output_section->vma | |
1029 | + input_section->output_offset); | |
1030 | ||
1031 | if (skip) | |
1032 | memset (&outrel, 0, sizeof outrel); | |
1033 | /* h->dynindx may be -1 if the symbol was marked to | |
1034 | become local. */ | |
1035 | else if (h != NULL | |
1036 | && ((! info->symbolic && h->dynindx != -1) | |
1037 | || !h->def_regular)) | |
1038 | { | |
1039 | BFD_ASSERT (h->dynindx != -1); | |
1040 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
1041 | outrel.r_addend = rel->r_addend; | |
1042 | } | |
1043 | else | |
1044 | { | |
1045 | if (r_type == R_OR1K_32) | |
1046 | { | |
1047 | outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE); | |
1048 | outrel.r_addend = relocation + rel->r_addend; | |
1049 | } | |
1050 | else | |
1051 | { | |
1052 | BFD_FAIL (); | |
4eca0228 | 1053 | _bfd_error_handler |
871b3ab2 | 1054 | (_("%pB: probably compiled without -fPIC?"), |
07d6d2b8 AM |
1055 | input_bfd); |
1056 | bfd_set_error (bfd_error_bad_value); | |
1057 | return FALSE; | |
1058 | } | |
1059 | } | |
1060 | ||
1061 | loc = sreloc->contents; | |
1062 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1063 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
1064 | break; | |
1065 | } | |
1066 | break; | |
1067 | } | |
1068 | ||
1069 | case R_OR1K_TLS_LDM_HI16: | |
1070 | case R_OR1K_TLS_LDM_LO16: | |
1071 | case R_OR1K_TLS_LDO_HI16: | |
1072 | case R_OR1K_TLS_LDO_LO16: | |
1073 | /* TODO: implement support for local dynamic. */ | |
1074 | BFD_FAIL (); | |
4eca0228 | 1075 | _bfd_error_handler |
871b3ab2 | 1076 | (_("%pB: support for local dynamic not implemented"), |
07d6d2b8 AM |
1077 | input_bfd); |
1078 | bfd_set_error (bfd_error_bad_value); | |
1079 | return FALSE; | |
1080 | ||
1081 | ||
1082 | case R_OR1K_TLS_GD_HI16: | |
1083 | case R_OR1K_TLS_GD_LO16: | |
1084 | case R_OR1K_TLS_IE_HI16: | |
1085 | case R_OR1K_TLS_IE_LO16: | |
1086 | { | |
1087 | bfd_vma gotoff; | |
1088 | Elf_Internal_Rela rela; | |
1089 | bfd_byte *loc; | |
1090 | int dynamic; | |
1091 | ||
1092 | sreloc = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1093 | ||
1094 | /* Mark as TLS related GOT entry by setting | |
1095 | bit 2 as well as bit 1. */ | |
1096 | if (h != NULL) | |
1097 | { | |
1098 | gotoff = h->got.offset; | |
1099 | h->got.offset |= 3; | |
1100 | } | |
1101 | else | |
1102 | { | |
1103 | gotoff = local_got_offsets[r_symndx]; | |
1104 | local_got_offsets[r_symndx] |= 3; | |
1105 | } | |
1106 | ||
1107 | /* Only process the relocation once. */ | |
1108 | if (gotoff & 1) | |
1109 | { | |
1110 | relocation = sgot->output_offset + (gotoff & ~3); | |
1111 | break; | |
1112 | } | |
1113 | ||
1114 | BFD_ASSERT (elf_hash_table (info)->hgot == NULL | |
73589c9d CS |
1115 | || elf_hash_table (info)->hgot->root.u.def.value == 0); |
1116 | ||
07d6d2b8 AM |
1117 | /* Dynamic entries will require relocations. if we do not need |
1118 | them we will just use the default R_OR1K_NONE and | |
1119 | not set anything. */ | |
1120 | dynamic = bfd_link_pic (info) | |
73589c9d CS |
1121 | || (sec && (sec->flags & SEC_ALLOC) != 0 |
1122 | && h != NULL | |
1123 | && (h->root.type == bfd_link_hash_defweak || !h->def_regular)); | |
1124 | ||
07d6d2b8 AM |
1125 | /* Shared GD. */ |
1126 | if (dynamic && (howto->type == R_OR1K_TLS_GD_HI16 | |
73589c9d | 1127 | || howto->type == R_OR1K_TLS_GD_LO16)) |
07d6d2b8 AM |
1128 | { |
1129 | int i; | |
1130 | ||
1131 | /* Add DTPMOD and DTPOFF GOT and rela entries. */ | |
1132 | for (i = 0; i < 2; ++i) | |
1133 | { | |
1134 | rela.r_offset = sgot->output_section->vma + | |
1135 | sgot->output_offset + gotoff + i*4; | |
1136 | if (h != NULL && h->dynindx != -1) | |
1137 | { | |
1138 | rela.r_info = ELF32_R_INFO (h->dynindx, | |
1139 | (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF)); | |
1140 | rela.r_addend = 0; | |
1141 | } | |
1142 | else | |
1143 | { | |
1144 | rela.r_info = ELF32_R_INFO (0, | |
1145 | (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF)); | |
1146 | rela.r_addend = tpoff (info, relocation); | |
1147 | } | |
1148 | ||
1149 | loc = sreloc->contents; | |
1150 | loc += sreloc->reloc_count++ * | |
1151 | sizeof (Elf32_External_Rela); | |
1152 | ||
1153 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1154 | bfd_put_32 (output_bfd, 0, sgot->contents + gotoff + i*4); | |
1155 | } | |
1156 | } | |
1157 | /* Static GD. */ | |
1158 | else if (howto->type == R_OR1K_TLS_GD_HI16 | |
1159 | || howto->type == R_OR1K_TLS_GD_LO16) | |
1160 | { | |
1161 | bfd_put_32 (output_bfd, 1, sgot->contents + gotoff); | |
1162 | bfd_put_32 (output_bfd, tpoff (info, relocation), | |
1163 | sgot->contents + gotoff + 4); | |
1164 | } | |
1165 | /* Shared IE. */ | |
1166 | else if (dynamic) | |
1167 | { | |
1168 | /* Add TPOFF GOT and rela entries. */ | |
1169 | rela.r_offset = sgot->output_section->vma + | |
1170 | sgot->output_offset + gotoff; | |
1171 | if (h != NULL && h->dynindx != -1) | |
1172 | { | |
1173 | rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_TLS_TPOFF); | |
1174 | rela.r_addend = 0; | |
1175 | } | |
1176 | else | |
1177 | { | |
1178 | rela.r_info = ELF32_R_INFO (0, R_OR1K_TLS_TPOFF); | |
1179 | rela.r_addend = tpoff (info, relocation); | |
1180 | } | |
1181 | ||
1182 | loc = sreloc->contents; | |
1183 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1184 | ||
1185 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1186 | bfd_put_32 (output_bfd, 0, sgot->contents + gotoff); | |
1187 | } | |
1188 | /* Static IE. */ | |
1189 | else | |
1190 | { | |
1191 | bfd_put_32 (output_bfd, tpoff (info, relocation), | |
73589c9d | 1192 | sgot->contents + gotoff); |
07d6d2b8 AM |
1193 | } |
1194 | relocation = sgot->output_offset + gotoff; | |
1195 | break; | |
1196 | } | |
1197 | case R_OR1K_TLS_LE_HI16: | |
1198 | case R_OR1K_TLS_LE_LO16: | |
1199 | ||
1200 | /* Relocation is offset from TP. */ | |
1201 | relocation = tpoff (info, relocation); | |
1202 | break; | |
1203 | ||
1204 | case R_OR1K_TLS_DTPMOD: | |
1205 | case R_OR1K_TLS_DTPOFF: | |
1206 | case R_OR1K_TLS_TPOFF: | |
1207 | /* These are resolved dynamically on load and shouldn't | |
1208 | be used as linker input. */ | |
1209 | BFD_FAIL (); | |
4eca0228 | 1210 | _bfd_error_handler |
871b3ab2 | 1211 | (_("%pB: will not resolve runtime TLS relocation"), |
07d6d2b8 AM |
1212 | input_bfd); |
1213 | bfd_set_error (bfd_error_bad_value); | |
1214 | return FALSE; | |
1215 | ||
1216 | default: | |
1217 | break; | |
1218 | } | |
73589c9d | 1219 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, |
07d6d2b8 | 1220 | rel->r_offset, relocation, rel->r_addend); |
73589c9d CS |
1221 | |
1222 | if (r != bfd_reloc_ok) | |
07d6d2b8 AM |
1223 | { |
1224 | const char *msg = NULL; | |
73589c9d | 1225 | |
07d6d2b8 AM |
1226 | switch (r) |
1227 | { | |
1228 | case bfd_reloc_overflow: | |
1a72702b | 1229 | (*info->callbacks->reloc_overflow) |
07d6d2b8 AM |
1230 | (info, (h ? &h->root : NULL), name, howto->name, |
1231 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
1232 | break; | |
73589c9d | 1233 | |
07d6d2b8 | 1234 | case bfd_reloc_undefined: |
1a72702b | 1235 | (*info->callbacks->undefined_symbol) |
07d6d2b8 AM |
1236 | (info, name, input_bfd, input_section, rel->r_offset, TRUE); |
1237 | break; | |
73589c9d | 1238 | |
07d6d2b8 AM |
1239 | case bfd_reloc_outofrange: |
1240 | msg = _("internal error: out of range error"); | |
1241 | break; | |
73589c9d | 1242 | |
07d6d2b8 AM |
1243 | case bfd_reloc_notsupported: |
1244 | msg = _("internal error: unsupported relocation error"); | |
1245 | break; | |
73589c9d | 1246 | |
07d6d2b8 AM |
1247 | case bfd_reloc_dangerous: |
1248 | msg = _("internal error: dangerous relocation"); | |
1249 | break; | |
73589c9d | 1250 | |
07d6d2b8 AM |
1251 | default: |
1252 | msg = _("internal error: unknown error"); | |
1253 | break; | |
1254 | } | |
73589c9d | 1255 | |
07d6d2b8 | 1256 | if (msg) |
1a72702b AM |
1257 | (*info->callbacks->warning) (info, msg, name, input_bfd, |
1258 | input_section, rel->r_offset); | |
07d6d2b8 | 1259 | } |
73589c9d CS |
1260 | } |
1261 | ||
1262 | return TRUE; | |
1263 | } | |
1264 | ||
1265 | /* Return the section that should be marked against GC for a given | |
1266 | relocation. */ | |
1267 | ||
1268 | static asection * | |
1269 | or1k_elf_gc_mark_hook (asection *sec, | |
1270 | struct bfd_link_info *info, | |
1271 | Elf_Internal_Rela *rel, | |
1272 | struct elf_link_hash_entry *h, | |
1273 | Elf_Internal_Sym *sym) | |
1274 | { | |
1275 | if (h != NULL) | |
1276 | switch (ELF32_R_TYPE (rel->r_info)) | |
1277 | { | |
1278 | case R_OR1K_GNU_VTINHERIT: | |
1279 | case R_OR1K_GNU_VTENTRY: | |
07d6d2b8 | 1280 | return NULL; |
73589c9d CS |
1281 | } |
1282 | ||
1283 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
1284 | } | |
1285 | ||
73589c9d CS |
1286 | /* Look through the relocs for a section during the first phase. */ |
1287 | ||
1288 | static bfd_boolean | |
1289 | or1k_elf_check_relocs (bfd *abfd, | |
1290 | struct bfd_link_info *info, | |
1291 | asection *sec, | |
1292 | const Elf_Internal_Rela *relocs) | |
1293 | { | |
1294 | Elf_Internal_Shdr *symtab_hdr; | |
1295 | struct elf_link_hash_entry **sym_hashes; | |
1296 | const Elf_Internal_Rela *rel; | |
1297 | ||
1298 | const Elf_Internal_Rela *rel_end; | |
1299 | struct elf_or1k_link_hash_table *htab; | |
1300 | bfd *dynobj; | |
1301 | asection *sreloc = NULL; | |
1302 | ||
0e1862bb | 1303 | if (bfd_link_relocatable (info)) |
73589c9d CS |
1304 | return TRUE; |
1305 | ||
65281396 AM |
1306 | /* Don't do anything special with non-loaded, non-alloced sections. |
1307 | In particular, any relocs in such sections should not affect GOT | |
1308 | and PLT reference counting (ie. we don't allow them to create GOT | |
1309 | or PLT entries), there's no possibility or desire to optimize TLS | |
1310 | relocs, and there's not much point in propagating relocs to shared | |
1311 | libs that the dynamic linker won't relocate. */ | |
1312 | if ((sec->flags & SEC_ALLOC) == 0) | |
1313 | return TRUE; | |
1314 | ||
73589c9d CS |
1315 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1316 | sym_hashes = elf_sym_hashes (abfd); | |
1317 | ||
1318 | htab = or1k_elf_hash_table (info); | |
1319 | if (htab == NULL) | |
1320 | return FALSE; | |
1321 | ||
1322 | dynobj = htab->root.dynobj; | |
1323 | ||
1324 | rel_end = relocs + sec->reloc_count; | |
1325 | for (rel = relocs; rel < rel_end; rel++) | |
1326 | { | |
1327 | struct elf_link_hash_entry *h; | |
1328 | unsigned long r_symndx; | |
1329 | unsigned char tls_type; | |
1330 | ||
1331 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1332 | if (r_symndx < symtab_hdr->sh_info) | |
07d6d2b8 | 1333 | h = NULL; |
73589c9d | 1334 | else |
07d6d2b8 AM |
1335 | { |
1336 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1337 | while (h->root.type == bfd_link_hash_indirect | |
1338 | || h->root.type == bfd_link_hash_warning) | |
1339 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1340 | } | |
73589c9d CS |
1341 | |
1342 | switch (ELF32_R_TYPE (rel->r_info)) | |
07d6d2b8 AM |
1343 | { |
1344 | case R_OR1K_TLS_GD_HI16: | |
1345 | case R_OR1K_TLS_GD_LO16: | |
1346 | tls_type = TLS_GD; | |
1347 | break; | |
1348 | case R_OR1K_TLS_LDM_HI16: | |
1349 | case R_OR1K_TLS_LDM_LO16: | |
1350 | case R_OR1K_TLS_LDO_HI16: | |
1351 | case R_OR1K_TLS_LDO_LO16: | |
1352 | tls_type = TLS_LD; | |
1353 | break; | |
1354 | case R_OR1K_TLS_IE_HI16: | |
1355 | case R_OR1K_TLS_IE_LO16: | |
1356 | tls_type = TLS_IE; | |
1357 | break; | |
1358 | case R_OR1K_TLS_LE_HI16: | |
1359 | case R_OR1K_TLS_LE_LO16: | |
1360 | tls_type = TLS_LE; | |
1361 | break; | |
1362 | default: | |
1363 | tls_type = TLS_NONE; | |
1364 | } | |
73589c9d CS |
1365 | |
1366 | /* Record TLS type. */ | |
1367 | if (h != NULL) | |
07d6d2b8 | 1368 | ((struct elf_or1k_link_hash_entry *) h)->tls_type = tls_type; |
73589c9d | 1369 | else |
07d6d2b8 AM |
1370 | { |
1371 | unsigned char *local_tls_type; | |
1372 | ||
1373 | /* This is a TLS type record for a local symbol. */ | |
1374 | local_tls_type = (unsigned char *) elf_or1k_local_tls_type (abfd); | |
1375 | if (local_tls_type == NULL) | |
1376 | { | |
1377 | bfd_size_type size; | |
1378 | ||
1379 | size = symtab_hdr->sh_info; | |
1380 | local_tls_type = bfd_zalloc (abfd, size); | |
1381 | if (local_tls_type == NULL) | |
1382 | return FALSE; | |
1383 | elf_or1k_local_tls_type (abfd) = local_tls_type; | |
1384 | } | |
1385 | local_tls_type[r_symndx] = tls_type; | |
1386 | } | |
73589c9d CS |
1387 | |
1388 | switch (ELF32_R_TYPE (rel->r_info)) | |
07d6d2b8 AM |
1389 | { |
1390 | /* This relocation describes the C++ object vtable hierarchy. | |
1391 | Reconstruct it for later use during GC. */ | |
1392 | case R_OR1K_GNU_VTINHERIT: | |
1393 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
1394 | return FALSE; | |
1395 | break; | |
1396 | ||
1397 | /* This relocation describes which C++ vtable entries are actually | |
1398 | used. Record for later use during GC. */ | |
1399 | case R_OR1K_GNU_VTENTRY: | |
1400 | BFD_ASSERT (h != NULL); | |
1401 | if (h != NULL | |
1402 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
1403 | return FALSE; | |
1404 | break; | |
1405 | ||
1406 | /* This relocation requires .plt entry. */ | |
1407 | case R_OR1K_PLT26: | |
1408 | if (h != NULL) | |
1409 | { | |
1410 | h->needs_plt = 1; | |
1411 | h->plt.refcount += 1; | |
1412 | } | |
1413 | break; | |
1414 | ||
1415 | case R_OR1K_GOT16: | |
1416 | case R_OR1K_GOTOFF_HI16: | |
1417 | case R_OR1K_GOTOFF_LO16: | |
1418 | case R_OR1K_TLS_GD_HI16: | |
1419 | case R_OR1K_TLS_GD_LO16: | |
1420 | case R_OR1K_TLS_IE_HI16: | |
1421 | case R_OR1K_TLS_IE_LO16: | |
1422 | if (htab->root.sgot == NULL) | |
1423 | { | |
1424 | if (dynobj == NULL) | |
1425 | htab->root.dynobj = dynobj = abfd; | |
1426 | if (!_bfd_elf_create_got_section (dynobj, info)) | |
1427 | return FALSE; | |
1428 | } | |
1429 | ||
1430 | if (ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_HI16 && | |
1431 | ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_LO16) | |
1432 | { | |
1433 | if (h != NULL) | |
1434 | h->got.refcount += 1; | |
1435 | else | |
1436 | { | |
1437 | bfd_signed_vma *local_got_refcounts; | |
1438 | ||
1439 | /* This is a global offset table entry for a local symbol. */ | |
1440 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1441 | if (local_got_refcounts == NULL) | |
1442 | { | |
1443 | bfd_size_type size; | |
1444 | ||
1445 | size = symtab_hdr->sh_info; | |
1446 | size *= sizeof (bfd_signed_vma); | |
1447 | local_got_refcounts = bfd_zalloc (abfd, size); | |
1448 | if (local_got_refcounts == NULL) | |
1449 | return FALSE; | |
1450 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1451 | } | |
1452 | local_got_refcounts[r_symndx] += 1; | |
1453 | } | |
1454 | } | |
1455 | break; | |
1456 | ||
1457 | case R_OR1K_INSN_REL_26: | |
1458 | case R_OR1K_HI_16_IN_INSN: | |
1459 | case R_OR1K_LO_16_IN_INSN: | |
1460 | case R_OR1K_32: | |
1461 | /* R_OR1K_16? */ | |
1462 | { | |
1463 | if (h != NULL && !bfd_link_pic (info)) | |
1464 | { | |
1465 | /* We may need a copy reloc. */ | |
1466 | h->non_got_ref = 1; | |
1467 | ||
1468 | /* We may also need a .plt entry. */ | |
1469 | h->plt.refcount += 1; | |
1470 | if (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26) | |
1471 | h->pointer_equality_needed = 1; | |
1472 | } | |
1473 | ||
1474 | /* If we are creating a shared library, and this is a reloc | |
1475 | against a global symbol, or a non PC relative reloc | |
1476 | against a local symbol, then we need to copy the reloc | |
1477 | into the shared library. However, if we are linking with | |
1478 | -Bsymbolic, we do not need to copy a reloc against a | |
1479 | global symbol which is defined in an object we are | |
1480 | including in the link (i.e., DEF_REGULAR is set). At | |
1481 | this point we have not seen all the input files, so it is | |
1482 | possible that DEF_REGULAR is not set now but will be set | |
1483 | later (it is never cleared). In case of a weak definition, | |
1484 | DEF_REGULAR may be cleared later by a strong definition in | |
1485 | a shared library. We account for that possibility below by | |
1486 | storing information in the relocs_copied field of the hash | |
1487 | table entry. A similar situation occurs when creating | |
1488 | shared libraries and symbol visibility changes render the | |
1489 | symbol local. | |
1490 | ||
1491 | If on the other hand, we are creating an executable, we | |
1492 | may need to keep relocations for symbols satisfied by a | |
1493 | dynamic library if we manage to avoid copy relocs for the | |
1494 | symbol. */ | |
1495 | ||
1496 | if ((bfd_link_pic (info) | |
1497 | && (sec->flags & SEC_ALLOC) != 0 | |
1498 | && (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26 | |
1499 | || (h != NULL | |
1500 | && (!SYMBOLIC_BIND (info, h) | |
1501 | || h->root.type == bfd_link_hash_defweak | |
1502 | || !h->def_regular)))) | |
1503 | || (!bfd_link_pic (info) | |
1504 | && (sec->flags & SEC_ALLOC) != 0 | |
1505 | && h != NULL | |
1506 | && (h->root.type == bfd_link_hash_defweak | |
1507 | || !h->def_regular))) | |
1508 | { | |
1509 | struct elf_dyn_relocs *p; | |
1510 | struct elf_dyn_relocs **head; | |
1511 | ||
1512 | /* When creating a shared object, we must copy these | |
1513 | relocs into the output file. We create a reloc | |
1514 | section in dynobj and make room for the reloc. */ | |
1515 | if (sreloc == NULL) | |
1516 | { | |
1517 | const char *name; | |
1518 | unsigned int strndx = elf_elfheader (abfd)->e_shstrndx; | |
1519 | unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name; | |
1520 | ||
1521 | name = bfd_elf_string_from_elf_section (abfd, strndx, shnam); | |
1522 | if (name == NULL) | |
1523 | return FALSE; | |
1524 | ||
1525 | if (strncmp (name, ".rela", 5) != 0 | |
1526 | || strcmp (bfd_get_section_name (abfd, sec), | |
1527 | name + 5) != 0) | |
1528 | { | |
4eca0228 | 1529 | _bfd_error_handler |
695344c0 | 1530 | /* xgettext:c-format */ |
871b3ab2 | 1531 | (_("%pB: bad relocation section name `%s\'"), |
07d6d2b8 AM |
1532 | abfd, name); |
1533 | } | |
1534 | ||
1535 | if (htab->root.dynobj == NULL) | |
1536 | htab->root.dynobj = abfd; | |
1537 | dynobj = htab->root.dynobj; | |
1538 | ||
1539 | sreloc = bfd_get_section_by_name (dynobj, name); | |
1540 | if (sreloc == NULL) | |
1541 | { | |
1542 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
1543 | (sec, dynobj, 2, abfd, /*rela?*/ TRUE); | |
1544 | ||
1545 | if (sreloc == NULL) | |
1546 | return FALSE; | |
1547 | } | |
1548 | elf_section_data (sec)->sreloc = sreloc; | |
1549 | } | |
1550 | ||
1551 | /* If this is a global symbol, we count the number of | |
1552 | relocations we need for this symbol. */ | |
1553 | if (h != NULL) | |
1554 | head = &((struct elf_or1k_link_hash_entry *) h)->dyn_relocs; | |
1555 | else | |
1556 | { | |
1557 | /* Track dynamic relocs needed for local syms too. | |
1558 | We really need local syms available to do this | |
1559 | easily. Oh well. */ | |
1560 | ||
1561 | asection *s; | |
1562 | Elf_Internal_Sym *isym; | |
1563 | void *vpp; | |
1564 | ||
1565 | isym = bfd_sym_from_r_symndx (&htab->sym_sec, | |
1566 | abfd, r_symndx); | |
1567 | if (isym == NULL) | |
1568 | return FALSE; | |
1569 | ||
1570 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
1571 | if (s == NULL) | |
1572 | return FALSE; | |
1573 | ||
1574 | vpp = &elf_section_data (s)->local_dynrel; | |
1575 | head = (struct elf_dyn_relocs **) vpp; | |
1576 | } | |
1577 | ||
1578 | p = *head; | |
1579 | if (p == NULL || p->sec != sec) | |
1580 | { | |
1581 | bfd_size_type amt = sizeof *p; | |
1582 | p = ((struct elf_dyn_relocs *) | |
1583 | bfd_alloc (htab->root.dynobj, amt)); | |
1584 | if (p == NULL) | |
1585 | return FALSE; | |
1586 | p->next = *head; | |
1587 | *head = p; | |
1588 | p->sec = sec; | |
1589 | p->count = 0; | |
1590 | p->pc_count = 0; | |
1591 | } | |
1592 | ||
1593 | p->count += 1; | |
1594 | if (ELF32_R_TYPE (rel->r_info) == R_OR1K_INSN_REL_26) | |
1595 | p->pc_count += 1; | |
1596 | } | |
1597 | } | |
1598 | break; | |
1599 | } | |
73589c9d CS |
1600 | } |
1601 | ||
1602 | return TRUE; | |
1603 | } | |
1604 | ||
1605 | /* Finish up the dynamic sections. */ | |
1606 | ||
1607 | static bfd_boolean | |
1608 | or1k_elf_finish_dynamic_sections (bfd *output_bfd, | |
07d6d2b8 | 1609 | struct bfd_link_info *info) |
73589c9d CS |
1610 | { |
1611 | bfd *dynobj; | |
1612 | asection *sdyn, *sgot; | |
1613 | struct elf_or1k_link_hash_table *htab; | |
1614 | ||
1615 | htab = or1k_elf_hash_table (info); | |
1616 | if (htab == NULL) | |
1617 | return FALSE; | |
1618 | ||
1619 | dynobj = htab->root.dynobj; | |
1620 | ||
ce558b89 | 1621 | sgot = htab->root.sgotplt; |
73589c9d CS |
1622 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
1623 | ||
1624 | if (htab->root.dynamic_sections_created) | |
1625 | { | |
1626 | asection *splt; | |
1627 | Elf32_External_Dyn *dyncon, *dynconend; | |
1628 | ||
1629 | BFD_ASSERT (sgot != NULL && sdyn != NULL); | |
1630 | ||
1631 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
1632 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
1633 | ||
1634 | for (; dyncon < dynconend; dyncon++) | |
07d6d2b8 AM |
1635 | { |
1636 | Elf_Internal_Dyn dyn; | |
1637 | asection *s; | |
73589c9d | 1638 | |
07d6d2b8 | 1639 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
73589c9d | 1640 | |
07d6d2b8 AM |
1641 | switch (dyn.d_tag) |
1642 | { | |
1643 | default: | |
1644 | continue; | |
73589c9d | 1645 | |
07d6d2b8 AM |
1646 | case DT_PLTGOT: |
1647 | s = htab->root.sgotplt; | |
1648 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
1649 | break; | |
73589c9d | 1650 | |
07d6d2b8 AM |
1651 | case DT_JMPREL: |
1652 | s = htab->root.srelplt; | |
1653 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
1654 | break; | |
73589c9d | 1655 | |
07d6d2b8 AM |
1656 | case DT_PLTRELSZ: |
1657 | s = htab->root.srelplt; | |
1658 | dyn.d_un.d_val = s->size; | |
1659 | break; | |
1660 | } | |
1661 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
1662 | } | |
73589c9d CS |
1663 | |
1664 | ||
1665 | /* Fill in the first entry in the procedure linkage table. */ | |
ce558b89 | 1666 | splt = htab->root.splt; |
73589c9d | 1667 | if (splt && splt->size > 0) |
07d6d2b8 AM |
1668 | { |
1669 | if (bfd_link_pic (info)) | |
1670 | { | |
1671 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, | |
1672 | splt->contents); | |
1673 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, | |
1674 | splt->contents + 4); | |
1675 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, | |
1676 | splt->contents + 8); | |
1677 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, | |
1678 | splt->contents + 12); | |
1679 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, | |
1680 | splt->contents + 16); | |
1681 | } | |
1682 | else | |
1683 | { | |
1684 | unsigned long addr; | |
1685 | /* addr = .got + 4 */ | |
1686 | addr = sgot->output_section->vma + sgot->output_offset + 4; | |
1687 | bfd_put_32 (output_bfd, | |
1688 | PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff), | |
1689 | splt->contents); | |
1690 | bfd_put_32 (output_bfd, | |
1691 | PLT0_ENTRY_WORD1 | (addr & 0xffff), | |
1692 | splt->contents + 4); | |
1693 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8); | |
1694 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12); | |
1695 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16); | |
1696 | } | |
1697 | ||
1698 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
1699 | } | |
73589c9d CS |
1700 | } |
1701 | ||
1702 | /* Set the first entry in the global offset table to the address of | |
1703 | the dynamic section. */ | |
1704 | if (sgot && sgot->size > 0) | |
1705 | { | |
1706 | if (sdyn == NULL) | |
07d6d2b8 | 1707 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); |
73589c9d | 1708 | else |
07d6d2b8 AM |
1709 | bfd_put_32 (output_bfd, |
1710 | sdyn->output_section->vma + sdyn->output_offset, | |
1711 | sgot->contents); | |
73589c9d CS |
1712 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; |
1713 | } | |
1714 | ||
ce558b89 AM |
1715 | if (htab->root.sgot && htab->root.sgot->size > 0) |
1716 | elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize = 4; | |
73589c9d CS |
1717 | |
1718 | return TRUE; | |
1719 | } | |
1720 | ||
1721 | /* Finish up dynamic symbol handling. We set the contents of various | |
1722 | dynamic sections here. */ | |
1723 | ||
1724 | static bfd_boolean | |
1725 | or1k_elf_finish_dynamic_symbol (bfd *output_bfd, | |
07d6d2b8 AM |
1726 | struct bfd_link_info *info, |
1727 | struct elf_link_hash_entry *h, | |
1728 | Elf_Internal_Sym *sym) | |
73589c9d CS |
1729 | { |
1730 | struct elf_or1k_link_hash_table *htab; | |
1731 | bfd_byte *loc; | |
1732 | ||
1733 | htab = or1k_elf_hash_table (info); | |
1734 | if (htab == NULL) | |
1735 | return FALSE; | |
1736 | ||
1737 | if (h->plt.offset != (bfd_vma) -1) | |
1738 | { | |
1739 | asection *splt; | |
1740 | asection *sgot; | |
1741 | asection *srela; | |
1742 | ||
1743 | bfd_vma plt_index; | |
1744 | bfd_vma got_offset; | |
1745 | bfd_vma got_addr; | |
1746 | Elf_Internal_Rela rela; | |
1747 | ||
1748 | /* This symbol has an entry in the procedure linkage table. Set | |
07d6d2b8 | 1749 | it up. */ |
73589c9d CS |
1750 | BFD_ASSERT (h->dynindx != -1); |
1751 | ||
ce558b89 AM |
1752 | splt = htab->root.splt; |
1753 | sgot = htab->root.sgotplt; | |
1754 | srela = htab->root.srelplt; | |
73589c9d CS |
1755 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); |
1756 | ||
1757 | /* Get the index in the procedure linkage table which | |
07d6d2b8 AM |
1758 | corresponds to this symbol. This is the index of this symbol |
1759 | in all the symbols for which we are making plt entries. The | |
1760 | first entry in the procedure linkage table is reserved. */ | |
73589c9d CS |
1761 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; |
1762 | ||
1763 | /* Get the offset into the .got table of the entry that | |
07d6d2b8 AM |
1764 | corresponds to this function. Each .got entry is 4 bytes. |
1765 | The first three are reserved. */ | |
73589c9d CS |
1766 | got_offset = (plt_index + 3) * 4; |
1767 | got_addr = got_offset; | |
1768 | ||
1769 | /* Fill in the entry in the procedure linkage table. */ | |
0e1862bb | 1770 | if (! bfd_link_pic (info)) |
07d6d2b8 AM |
1771 | { |
1772 | got_addr += htab->root.sgotplt->output_section->vma | |
1773 | + htab->root.sgotplt->output_offset; | |
1774 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD0 | ((got_addr >> 16) & 0xffff), | |
1775 | splt->contents + h->plt.offset); | |
1776 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD1 | (got_addr & 0xffff), | |
1777 | splt->contents + h->plt.offset + 4); | |
1778 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2, | |
1779 | splt->contents + h->plt.offset + 8); | |
1780 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3, | |
1781 | splt->contents + h->plt.offset + 12); | |
1782 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD4 | |
1783 | | plt_index * sizeof (Elf32_External_Rela), | |
1784 | splt->contents + h->plt.offset + 16); | |
1785 | } | |
73589c9d | 1786 | else |
07d6d2b8 AM |
1787 | { |
1788 | bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD0 | (got_addr & 0xffff), | |
1789 | splt->contents + h->plt.offset); | |
1790 | bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD1 | |
1791 | | plt_index * sizeof (Elf32_External_Rela), | |
1792 | splt->contents + h->plt.offset + 4); | |
1793 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2, | |
1794 | splt->contents + h->plt.offset + 8); | |
1795 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3, | |
1796 | splt->contents + h->plt.offset + 12); | |
1797 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4, | |
1798 | splt->contents + h->plt.offset + 16); | |
1799 | } | |
73589c9d CS |
1800 | |
1801 | /* Fill in the entry in the global offset table. */ | |
1802 | bfd_put_32 (output_bfd, | |
07d6d2b8 AM |
1803 | (splt->output_section->vma |
1804 | + splt->output_offset), /* Same offset. */ | |
1805 | sgot->contents + got_offset); | |
73589c9d CS |
1806 | |
1807 | /* Fill in the entry in the .rela.plt section. */ | |
1808 | rela.r_offset = (sgot->output_section->vma | |
07d6d2b8 AM |
1809 | + sgot->output_offset |
1810 | + got_offset); | |
73589c9d CS |
1811 | rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_JMP_SLOT); |
1812 | rela.r_addend = 0; | |
1813 | loc = srela->contents; | |
1814 | loc += plt_index * sizeof (Elf32_External_Rela); | |
1815 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1816 | ||
1817 | if (!h->def_regular) | |
07d6d2b8 AM |
1818 | { |
1819 | /* Mark the symbol as undefined, rather than as defined in | |
1820 | the .plt section. Leave the value alone. */ | |
1821 | sym->st_shndx = SHN_UNDEF; | |
1822 | } | |
73589c9d CS |
1823 | |
1824 | } | |
1825 | ||
1826 | if (h->got.offset != (bfd_vma) -1 | |
1827 | && (h->got.offset & 2) == 0) /* Homemade TLS check. */ | |
1828 | { | |
1829 | asection *sgot; | |
1830 | asection *srela; | |
1831 | Elf_Internal_Rela rela; | |
1832 | ||
1833 | /* This symbol has an entry in the global offset table. Set it | |
07d6d2b8 | 1834 | up. */ |
ce558b89 AM |
1835 | sgot = htab->root.sgot; |
1836 | srela = htab->root.srelgot; | |
73589c9d CS |
1837 | BFD_ASSERT (sgot != NULL && srela != NULL); |
1838 | ||
1839 | rela.r_offset = (sgot->output_section->vma | |
07d6d2b8 AM |
1840 | + sgot->output_offset |
1841 | + (h->got.offset &~ 1)); | |
73589c9d CS |
1842 | |
1843 | /* If this is a -Bsymbolic link, and the symbol is defined | |
07d6d2b8 AM |
1844 | locally, we just want to emit a RELATIVE reloc. Likewise if |
1845 | the symbol was forced to be local because of a version file. | |
1846 | The entry in the global offset table will already have been | |
1847 | initialized in the relocate_section function. */ | |
0e1862bb | 1848 | if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h)) |
07d6d2b8 AM |
1849 | { |
1850 | rela.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE); | |
1851 | rela.r_addend = (h->root.u.def.value | |
1852 | + h->root.u.def.section->output_section->vma | |
1853 | + h->root.u.def.section->output_offset); | |
1854 | } | |
73589c9d | 1855 | else |
07d6d2b8 AM |
1856 | { |
1857 | BFD_ASSERT ((h->got.offset & 1) == 0); | |
1858 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
1859 | rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_GLOB_DAT); | |
1860 | rela.r_addend = 0; | |
1861 | } | |
73589c9d CS |
1862 | |
1863 | loc = srela->contents; | |
1864 | loc += srela->reloc_count * sizeof (Elf32_External_Rela); | |
1865 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1866 | ++srela->reloc_count; | |
1867 | } | |
1868 | ||
1869 | if (h->needs_copy) | |
1870 | { | |
1871 | asection *s; | |
1872 | Elf_Internal_Rela rela; | |
1873 | ||
1874 | /* This symbols needs a copy reloc. Set it up. */ | |
1875 | BFD_ASSERT (h->dynindx != -1 | |
07d6d2b8 AM |
1876 | && (h->root.type == bfd_link_hash_defined |
1877 | || h->root.type == bfd_link_hash_defweak)); | |
73589c9d | 1878 | |
73589c9d | 1879 | rela.r_offset = (h->root.u.def.value |
07d6d2b8 AM |
1880 | + h->root.u.def.section->output_section->vma |
1881 | + h->root.u.def.section->output_offset); | |
73589c9d CS |
1882 | rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_COPY); |
1883 | rela.r_addend = 0; | |
afbf7e8e | 1884 | if (h->root.u.def.section == htab->root.sdynrelro) |
5474d94f AM |
1885 | s = htab->root.sreldynrelro; |
1886 | else | |
1887 | s = htab->root.srelbss; | |
1888 | loc = s->contents + s->reloc_count * sizeof (Elf32_External_Rela); | |
73589c9d CS |
1889 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
1890 | ++s->reloc_count; | |
1891 | } | |
1892 | ||
1893 | /* Mark some specially defined symbols as absolute. */ | |
1894 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
1895 | || h == htab->root.hgot) | |
1896 | sym->st_shndx = SHN_ABS; | |
1897 | ||
1898 | return TRUE; | |
1899 | } | |
1900 | ||
1901 | static enum elf_reloc_type_class | |
1902 | or1k_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
07d6d2b8 AM |
1903 | const asection *rel_sec ATTRIBUTE_UNUSED, |
1904 | const Elf_Internal_Rela *rela) | |
73589c9d CS |
1905 | { |
1906 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
1907 | { | |
1908 | case R_OR1K_RELATIVE: return reloc_class_relative; | |
1909 | case R_OR1K_JMP_SLOT: return reloc_class_plt; | |
07d6d2b8 AM |
1910 | case R_OR1K_COPY: return reloc_class_copy; |
1911 | default: return reloc_class_normal; | |
73589c9d CS |
1912 | } |
1913 | } | |
1914 | ||
63c1f59d AM |
1915 | /* Find dynamic relocs for H that apply to read-only sections. */ |
1916 | ||
1917 | static asection * | |
1918 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
1919 | { | |
3bf083ed | 1920 | struct elf_dyn_relocs *p; |
63c1f59d AM |
1921 | struct elf_or1k_link_hash_entry *eh = (struct elf_or1k_link_hash_entry *) h; |
1922 | ||
1923 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1924 | { | |
1925 | asection *s = p->sec->output_section; | |
1926 | ||
1927 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1928 | return p->sec; | |
1929 | } | |
1930 | return NULL; | |
1931 | } | |
1932 | ||
73589c9d CS |
1933 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1934 | regular object. The current definition is in some section of the | |
1935 | dynamic object, but we're not including those sections. We have to | |
1936 | change the definition to something the rest of the link can | |
1937 | understand. */ | |
1938 | ||
1939 | static bfd_boolean | |
1940 | or1k_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
07d6d2b8 | 1941 | struct elf_link_hash_entry *h) |
73589c9d CS |
1942 | { |
1943 | struct elf_or1k_link_hash_table *htab; | |
73589c9d | 1944 | bfd *dynobj; |
5474d94f | 1945 | asection *s, *srel; |
73589c9d CS |
1946 | |
1947 | dynobj = elf_hash_table (info)->dynobj; | |
1948 | ||
1949 | /* Make sure we know what is going on here. */ | |
1950 | BFD_ASSERT (dynobj != NULL | |
07d6d2b8 AM |
1951 | && (h->needs_plt |
1952 | || h->is_weakalias | |
1953 | || (h->def_dynamic | |
1954 | && h->ref_regular | |
1955 | && !h->def_regular))); | |
73589c9d CS |
1956 | |
1957 | /* If this is a function, put it in the procedure linkage table. We | |
1958 | will fill in the contents of the procedure linkage table later, | |
1959 | when we know the address of the .got section. */ | |
1960 | if (h->type == STT_FUNC | |
1961 | || h->needs_plt) | |
1962 | { | |
0e1862bb | 1963 | if (! bfd_link_pic (info) |
07d6d2b8 AM |
1964 | && !h->def_dynamic |
1965 | && !h->ref_dynamic | |
1966 | && h->root.type != bfd_link_hash_undefweak | |
1967 | && h->root.type != bfd_link_hash_undefined) | |
1968 | { | |
1969 | /* This case can occur if we saw a PLT reloc in an input | |
1970 | file, but the symbol was never referred to by a dynamic | |
1971 | object. In such a case, we don't actually need to build | |
1972 | a procedure linkage table, and we can just do a PCREL | |
1973 | reloc instead. */ | |
1974 | h->plt.offset = (bfd_vma) -1; | |
1975 | h->needs_plt = 0; | |
1976 | } | |
73589c9d CS |
1977 | |
1978 | return TRUE; | |
1979 | } | |
1980 | else | |
1981 | h->plt.offset = (bfd_vma) -1; | |
1982 | ||
1983 | /* If this is a weak symbol, and there is a real definition, the | |
1984 | processor independent code will have arranged for us to see the | |
1985 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 1986 | if (h->is_weakalias) |
73589c9d | 1987 | { |
60d67dc8 AM |
1988 | struct elf_link_hash_entry *def = weakdef (h); |
1989 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
1990 | h->root.u.def.section = def->root.u.def.section; | |
1991 | h->root.u.def.value = def->root.u.def.value; | |
73589c9d CS |
1992 | return TRUE; |
1993 | } | |
1994 | ||
1995 | /* This is a reference to a symbol defined by a dynamic object which | |
1996 | is not a function. */ | |
1997 | ||
1998 | /* If we are creating a shared library, we must presume that the | |
1999 | only references to the symbol are via the global offset table. | |
2000 | For such cases we need not do anything here; the relocations will | |
2001 | be handled correctly by relocate_section. */ | |
0e1862bb | 2002 | if (bfd_link_pic (info)) |
73589c9d CS |
2003 | return TRUE; |
2004 | ||
2005 | /* If there are no references to this symbol that do not use the | |
2006 | GOT, we don't need to generate a copy reloc. */ | |
2007 | if (!h->non_got_ref) | |
2008 | return TRUE; | |
2009 | ||
2010 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
2011 | if (info->nocopyreloc) | |
2012 | { | |
2013 | h->non_got_ref = 0; | |
2014 | return TRUE; | |
2015 | } | |
2016 | ||
3bf083ed AM |
2017 | /* If we don't find any dynamic relocs in read-only sections, then |
2018 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
2019 | if (!readonly_dynrelocs (h)) | |
73589c9d CS |
2020 | { |
2021 | h->non_got_ref = 0; | |
2022 | return TRUE; | |
2023 | } | |
2024 | ||
2025 | /* We must allocate the symbol in our .dynbss section, which will | |
2026 | become part of the .bss section of the executable. There will be | |
2027 | an entry for this symbol in the .dynsym section. The dynamic | |
2028 | object will contain position independent code, so all references | |
2029 | from the dynamic object to this symbol will go through the global | |
2030 | offset table. The dynamic linker will use the .dynsym entry to | |
2031 | determine the address it must put in the global offset table, so | |
2032 | both the dynamic object and the regular object will refer to the | |
2033 | same memory location for the variable. */ | |
2034 | ||
2035 | htab = or1k_elf_hash_table (info); | |
2036 | if (htab == NULL) | |
2037 | return FALSE; | |
2038 | ||
73589c9d CS |
2039 | /* We must generate a R_OR1K_COPY reloc to tell the dynamic linker |
2040 | to copy the initial value out of the dynamic object and into the | |
2041 | runtime process image. We need to remember the offset into the | |
2042 | .rela.bss section we are going to use. */ | |
5474d94f | 2043 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
73589c9d | 2044 | { |
5474d94f AM |
2045 | s = htab->root.sdynrelro; |
2046 | srel = htab->root.sreldynrelro; | |
2047 | } | |
2048 | else | |
2049 | { | |
2050 | s = htab->root.sdynbss; | |
9d19e4fd | 2051 | srel = htab->root.srelbss; |
5474d94f AM |
2052 | } |
2053 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) | |
2054 | { | |
73589c9d CS |
2055 | srel->size += sizeof (Elf32_External_Rela); |
2056 | h->needs_copy = 1; | |
2057 | } | |
2058 | ||
6cabe1ea | 2059 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
73589c9d CS |
2060 | } |
2061 | ||
2062 | /* Allocate space in .plt, .got and associated reloc sections for | |
2063 | dynamic relocs. */ | |
2064 | ||
2065 | static bfd_boolean | |
2066 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) | |
2067 | { | |
2068 | struct bfd_link_info *info; | |
2069 | struct elf_or1k_link_hash_table *htab; | |
2070 | struct elf_or1k_link_hash_entry *eh; | |
3bf083ed | 2071 | struct elf_dyn_relocs *p; |
73589c9d CS |
2072 | |
2073 | if (h->root.type == bfd_link_hash_indirect) | |
2074 | return TRUE; | |
2075 | ||
2076 | info = (struct bfd_link_info *) inf; | |
2077 | htab = or1k_elf_hash_table (info); | |
2078 | if (htab == NULL) | |
2079 | return FALSE; | |
2080 | ||
2081 | eh = (struct elf_or1k_link_hash_entry *) h; | |
2082 | ||
2083 | if (htab->root.dynamic_sections_created | |
2084 | && h->plt.refcount > 0) | |
2085 | { | |
2086 | /* Make sure this symbol is output as a dynamic symbol. | |
07d6d2b8 | 2087 | Undefined weak syms won't yet be marked as dynamic. */ |
73589c9d | 2088 | if (h->dynindx == -1 |
07d6d2b8 AM |
2089 | && !h->forced_local) |
2090 | { | |
2091 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2092 | return FALSE; | |
2093 | } | |
73589c9d | 2094 | |
0e1862bb | 2095 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
07d6d2b8 AM |
2096 | { |
2097 | asection *s = htab->root.splt; | |
2098 | ||
2099 | /* If this is the first .plt entry, make room for the special | |
2100 | first entry. */ | |
2101 | if (s->size == 0) | |
2102 | s->size = PLT_ENTRY_SIZE; | |
2103 | ||
2104 | h->plt.offset = s->size; | |
2105 | ||
2106 | /* If this symbol is not defined in a regular file, and we are | |
2107 | not generating a shared library, then set the symbol to this | |
2108 | location in the .plt. This is required to make function | |
2109 | pointers compare as equal between the normal executable and | |
2110 | the shared library. */ | |
2111 | if (! bfd_link_pic (info) | |
2112 | && !h->def_regular) | |
2113 | { | |
2114 | h->root.u.def.section = s; | |
2115 | h->root.u.def.value = h->plt.offset; | |
2116 | } | |
2117 | ||
2118 | /* Make room for this entry. */ | |
2119 | s->size += PLT_ENTRY_SIZE; | |
2120 | ||
2121 | /* We also need to make an entry in the .got.plt section, which | |
2122 | will be placed in the .got section by the linker script. */ | |
2123 | htab->root.sgotplt->size += 4; | |
2124 | ||
2125 | /* We also need to make an entry in the .rel.plt section. */ | |
2126 | htab->root.srelplt->size += sizeof (Elf32_External_Rela); | |
2127 | } | |
73589c9d | 2128 | else |
07d6d2b8 AM |
2129 | { |
2130 | h->plt.offset = (bfd_vma) -1; | |
2131 | h->needs_plt = 0; | |
2132 | } | |
73589c9d CS |
2133 | } |
2134 | else | |
2135 | { | |
2136 | h->plt.offset = (bfd_vma) -1; | |
2137 | h->needs_plt = 0; | |
2138 | } | |
2139 | ||
2140 | if (h->got.refcount > 0) | |
2141 | { | |
2142 | asection *s; | |
2143 | bfd_boolean dyn; | |
2144 | unsigned char tls_type; | |
2145 | ||
2146 | /* Make sure this symbol is output as a dynamic symbol. | |
07d6d2b8 | 2147 | Undefined weak syms won't yet be marked as dynamic. */ |
73589c9d | 2148 | if (h->dynindx == -1 |
07d6d2b8 AM |
2149 | && !h->forced_local) |
2150 | { | |
2151 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2152 | return FALSE; | |
2153 | } | |
73589c9d | 2154 | |
ce558b89 | 2155 | s = htab->root.sgot; |
73589c9d CS |
2156 | |
2157 | h->got.offset = s->size; | |
2158 | ||
2159 | tls_type = ((struct elf_or1k_link_hash_entry *) h)->tls_type; | |
2160 | ||
2161 | /* TLS GD requires two GOT and two relocs. */ | |
2162 | if (tls_type == TLS_GD) | |
07d6d2b8 | 2163 | s->size += 8; |
73589c9d | 2164 | else |
07d6d2b8 | 2165 | s->size += 4; |
73589c9d | 2166 | dyn = htab->root.dynamic_sections_created; |
0e1862bb | 2167 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)) |
07d6d2b8 AM |
2168 | { |
2169 | if (tls_type == TLS_GD) | |
2170 | htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela); | |
2171 | else | |
2172 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); | |
2173 | } | |
73589c9d CS |
2174 | } |
2175 | else | |
2176 | h->got.offset = (bfd_vma) -1; | |
2177 | ||
2178 | if (eh->dyn_relocs == NULL) | |
2179 | return TRUE; | |
2180 | ||
2181 | /* In the shared -Bsymbolic case, discard space allocated for | |
2182 | dynamic pc-relative relocs against symbols which turn out to be | |
2183 | defined in regular objects. For the normal shared case, discard | |
2184 | space for pc-relative relocs that have become local due to symbol | |
2185 | visibility changes. */ | |
2186 | ||
0e1862bb | 2187 | if (bfd_link_pic (info)) |
73589c9d | 2188 | { |
ffccb7af | 2189 | if (SYMBOL_CALLS_LOCAL (info, h)) |
07d6d2b8 AM |
2190 | { |
2191 | struct elf_dyn_relocs **pp; | |
2192 | ||
2193 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL;) | |
2194 | { | |
2195 | p->count -= p->pc_count; | |
2196 | p->pc_count = 0; | |
2197 | if (p->count == 0) | |
2198 | *pp = p->next; | |
2199 | else | |
2200 | pp = &p->next; | |
2201 | } | |
2202 | } | |
73589c9d CS |
2203 | |
2204 | /* Also discard relocs on undefined weak syms with non-default | |
07d6d2b8 | 2205 | visibility. */ |
73589c9d | 2206 | if (eh->dyn_relocs != NULL |
07d6d2b8 AM |
2207 | && h->root.type == bfd_link_hash_undefweak) |
2208 | { | |
2209 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
2210 | eh->dyn_relocs = NULL; | |
2211 | ||
2212 | /* Make sure undefined weak symbols are output as a dynamic | |
2213 | symbol in PIEs. */ | |
2214 | else if (h->dynindx == -1 | |
2215 | && !h->forced_local) | |
2216 | { | |
2217 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2218 | return FALSE; | |
2219 | } | |
2220 | } | |
73589c9d CS |
2221 | } |
2222 | else | |
2223 | { | |
2224 | /* For the non-shared case, discard space for relocs against | |
07d6d2b8 AM |
2225 | symbols which turn out to need copy relocs or are not |
2226 | dynamic. */ | |
73589c9d CS |
2227 | |
2228 | if (!h->non_got_ref | |
07d6d2b8 AM |
2229 | && ((h->def_dynamic |
2230 | && !h->def_regular) | |
2231 | || (htab->root.dynamic_sections_created | |
2232 | && (h->root.type == bfd_link_hash_undefweak | |
2233 | || h->root.type == bfd_link_hash_undefined)))) | |
2234 | { | |
2235 | /* Make sure this symbol is output as a dynamic symbol. | |
2236 | Undefined weak syms won't yet be marked as dynamic. */ | |
2237 | if (h->dynindx == -1 | |
2238 | && !h->forced_local) | |
2239 | { | |
2240 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2241 | return FALSE; | |
2242 | } | |
2243 | ||
2244 | /* If that succeeded, we know we'll be keeping all the | |
2245 | relocs. */ | |
2246 | if (h->dynindx != -1) | |
2247 | goto keep; | |
2248 | } | |
73589c9d CS |
2249 | |
2250 | eh->dyn_relocs = NULL; | |
2251 | ||
2252 | keep: ; | |
2253 | } | |
2254 | ||
2255 | /* Finally, allocate space. */ | |
2256 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2257 | { | |
2258 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
2259 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
2260 | } | |
2261 | ||
2262 | return TRUE; | |
2263 | } | |
2264 | ||
63c1f59d AM |
2265 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
2266 | read-only sections. */ | |
73589c9d CS |
2267 | |
2268 | static bfd_boolean | |
63c1f59d | 2269 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p) |
73589c9d | 2270 | { |
63c1f59d | 2271 | asection *sec; |
73589c9d | 2272 | |
63c1f59d AM |
2273 | if (h->root.type == bfd_link_hash_indirect) |
2274 | return TRUE; | |
73589c9d | 2275 | |
63c1f59d AM |
2276 | sec = readonly_dynrelocs (h); |
2277 | if (sec != NULL) | |
2278 | { | |
2279 | struct bfd_link_info *info = (struct bfd_link_info *) info_p; | |
73589c9d | 2280 | |
63c1f59d AM |
2281 | info->flags |= DF_TEXTREL; |
2282 | info->callbacks->minfo | |
c1c8c1ef | 2283 | (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"), |
63c1f59d | 2284 | sec->owner, h->root.root.string, sec); |
73589c9d | 2285 | |
63c1f59d AM |
2286 | /* Not an error, just cut short the traversal. */ |
2287 | return FALSE; | |
73589c9d CS |
2288 | } |
2289 | return TRUE; | |
2290 | } | |
2291 | ||
2292 | /* Set the sizes of the dynamic sections. */ | |
2293 | ||
2294 | static bfd_boolean | |
2295 | or1k_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
07d6d2b8 | 2296 | struct bfd_link_info *info) |
73589c9d CS |
2297 | { |
2298 | struct elf_or1k_link_hash_table *htab; | |
2299 | bfd *dynobj; | |
2300 | asection *s; | |
2301 | bfd_boolean relocs; | |
2302 | bfd *ibfd; | |
2303 | ||
2304 | htab = or1k_elf_hash_table (info); | |
2305 | if (htab == NULL) | |
2306 | return FALSE; | |
2307 | ||
2308 | dynobj = htab->root.dynobj; | |
2309 | BFD_ASSERT (dynobj != NULL); | |
2310 | ||
2311 | if (htab->root.dynamic_sections_created) | |
2312 | { | |
2313 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 2314 | if (bfd_link_executable (info) && !info->nointerp) |
07d6d2b8 AM |
2315 | { |
2316 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
2317 | BFD_ASSERT (s != NULL); | |
2318 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
2319 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2320 | } | |
73589c9d CS |
2321 | } |
2322 | ||
2323 | /* Set up .got offsets for local syms, and space for local dynamic | |
2324 | relocs. */ | |
c72f2fb2 | 2325 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
73589c9d CS |
2326 | { |
2327 | bfd_signed_vma *local_got; | |
2328 | bfd_signed_vma *end_local_got; | |
2329 | bfd_size_type locsymcount; | |
2330 | Elf_Internal_Shdr *symtab_hdr; | |
2331 | unsigned char *local_tls_type; | |
2332 | asection *srel; | |
2333 | ||
2334 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
07d6d2b8 | 2335 | continue; |
73589c9d CS |
2336 | |
2337 | for (s = ibfd->sections; s != NULL; s = s->next) | |
07d6d2b8 AM |
2338 | { |
2339 | struct elf_dyn_relocs *p; | |
2340 | ||
2341 | for (p = ((struct elf_dyn_relocs *) | |
2342 | elf_section_data (s)->local_dynrel); | |
2343 | p != NULL; | |
2344 | p = p->next) | |
2345 | { | |
2346 | if (! bfd_is_abs_section (p->sec) | |
2347 | && bfd_is_abs_section (p->sec->output_section)) | |
2348 | { | |
2349 | /* Input section has been discarded, either because | |
2350 | it is a copy of a linkonce section or due to | |
2351 | linker script /DISCARD/, so we'll be discarding | |
2352 | the relocs too. */ | |
2353 | } | |
2354 | else if (p->count != 0) | |
2355 | { | |
2356 | srel = elf_section_data (p->sec)->sreloc; | |
2357 | srel->size += p->count * sizeof (Elf32_External_Rela); | |
2358 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
2359 | info->flags |= DF_TEXTREL; | |
2360 | } | |
2361 | } | |
2362 | } | |
73589c9d CS |
2363 | |
2364 | local_got = elf_local_got_refcounts (ibfd); | |
2365 | if (!local_got) | |
07d6d2b8 | 2366 | continue; |
73589c9d CS |
2367 | |
2368 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2369 | locsymcount = symtab_hdr->sh_info; | |
2370 | end_local_got = local_got + locsymcount; | |
ce558b89 AM |
2371 | s = htab->root.sgot; |
2372 | srel = htab->root.srelgot; | |
73589c9d CS |
2373 | local_tls_type = (unsigned char *) elf_or1k_local_tls_type (ibfd); |
2374 | for (; local_got < end_local_got; ++local_got) | |
07d6d2b8 AM |
2375 | { |
2376 | if (*local_got > 0) | |
2377 | { | |
2378 | *local_got = s->size; | |
2379 | ||
2380 | /* TLS GD requires two GOT and two relocs. */ | |
2381 | if (local_tls_type != NULL && *local_tls_type == TLS_GD) | |
2382 | s->size += 8; | |
2383 | else | |
2384 | s->size += 4; | |
2385 | if (bfd_link_pic (info)) | |
2386 | { | |
2387 | if (local_tls_type != NULL && *local_tls_type == TLS_GD) | |
2388 | srel->size += 2 * sizeof (Elf32_External_Rela); | |
2389 | else | |
2390 | srel->size += sizeof (Elf32_External_Rela); | |
2391 | } | |
2392 | } | |
2393 | else | |
2394 | ||
2395 | *local_got = (bfd_vma) -1; | |
2396 | ||
2397 | if (local_tls_type) | |
2398 | ++local_tls_type; | |
2399 | } | |
73589c9d CS |
2400 | } |
2401 | ||
2402 | /* Allocate global sym .plt and .got entries, and space for global | |
2403 | sym dynamic relocs. */ | |
2404 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info); | |
2405 | ||
2406 | /* We now have determined the sizes of the various dynamic sections. | |
2407 | Allocate memory for them. */ | |
2408 | relocs = FALSE; | |
2409 | for (s = dynobj->sections; s != NULL; s = s->next) | |
2410 | { | |
2411 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
07d6d2b8 | 2412 | continue; |
73589c9d | 2413 | |
ce558b89 | 2414 | if (s == htab->root.splt |
07d6d2b8 AM |
2415 | || s == htab->root.sgot |
2416 | || s == htab->root.sgotplt | |
5474d94f AM |
2417 | || s == htab->root.sdynbss |
2418 | || s == htab->root.sdynrelro) | |
07d6d2b8 AM |
2419 | { |
2420 | /* Strip this section if we don't need it; see the | |
2421 | comment below. */ | |
2422 | } | |
73589c9d | 2423 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) |
07d6d2b8 AM |
2424 | { |
2425 | if (s->size != 0 && s != htab->root.srelplt) | |
2426 | relocs = TRUE; | |
2427 | ||
2428 | /* We use the reloc_count field as a counter if we need | |
2429 | to copy relocs into the output file. */ | |
2430 | s->reloc_count = 0; | |
2431 | } | |
73589c9d | 2432 | else |
07d6d2b8 AM |
2433 | /* It's not one of our sections, so don't allocate space. */ |
2434 | continue; | |
73589c9d CS |
2435 | |
2436 | if (s->size == 0) | |
07d6d2b8 AM |
2437 | { |
2438 | /* If we don't need this section, strip it from the | |
2439 | output file. This is mostly to handle .rela.bss and | |
2440 | .rela.plt. We must create both sections in | |
2441 | create_dynamic_sections, because they must be created | |
2442 | before the linker maps input sections to output | |
2443 | sections. The linker does that before | |
2444 | adjust_dynamic_symbol is called, and it is that | |
2445 | function which decides whether anything needs to go | |
2446 | into these sections. */ | |
2447 | s->flags |= SEC_EXCLUDE; | |
2448 | continue; | |
2449 | } | |
73589c9d CS |
2450 | |
2451 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
07d6d2b8 | 2452 | continue; |
73589c9d CS |
2453 | |
2454 | /* Allocate memory for the section contents. We use bfd_zalloc | |
07d6d2b8 AM |
2455 | here in case unused entries are not reclaimed before the |
2456 | section's contents are written out. This should not happen, | |
2457 | but this way if it does, we get a R_OR1K_NONE reloc instead | |
2458 | of garbage. */ | |
73589c9d CS |
2459 | s->contents = bfd_zalloc (dynobj, s->size); |
2460 | ||
2461 | if (s->contents == NULL) | |
07d6d2b8 | 2462 | return FALSE; |
73589c9d CS |
2463 | } |
2464 | ||
2465 | if (htab->root.dynamic_sections_created) | |
2466 | { | |
2467 | /* Add some entries to the .dynamic section. We fill in the | |
07d6d2b8 AM |
2468 | values later, in or1k_elf_finish_dynamic_sections, but we |
2469 | must add the entries now so that we get the correct size for | |
2470 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2471 | dynamic linker and used by the debugger. */ | |
73589c9d CS |
2472 | #define add_dynamic_entry(TAG, VAL) \ |
2473 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
2474 | ||
0e1862bb | 2475 | if (bfd_link_executable (info)) |
73589c9d | 2476 | { |
07d6d2b8 AM |
2477 | if (! add_dynamic_entry (DT_DEBUG, 0)) |
2478 | return FALSE; | |
73589c9d CS |
2479 | } |
2480 | ||
ce558b89 | 2481 | if (htab->root.splt->size != 0) |
73589c9d | 2482 | { |
07d6d2b8 AM |
2483 | if (! add_dynamic_entry (DT_PLTGOT, 0) |
2484 | || ! add_dynamic_entry (DT_PLTRELSZ, 0) | |
2485 | || ! add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2486 | || ! add_dynamic_entry (DT_JMPREL, 0)) | |
2487 | return FALSE; | |
2488 | } | |
73589c9d CS |
2489 | |
2490 | if (relocs) | |
2491 | { | |
07d6d2b8 AM |
2492 | if (! add_dynamic_entry (DT_RELA, 0) |
2493 | || ! add_dynamic_entry (DT_RELASZ, 0) | |
2494 | || ! add_dynamic_entry (DT_RELAENT, | |
2495 | sizeof (Elf32_External_Rela))) | |
2496 | return FALSE; | |
2497 | ||
2498 | /* If any dynamic relocs apply to a read-only section, | |
2499 | then we need a DT_TEXTREL entry. */ | |
2500 | if ((info->flags & DF_TEXTREL) == 0) | |
2501 | elf_link_hash_traverse (&htab->root, maybe_set_textrel, info); | |
2502 | ||
2503 | if ((info->flags & DF_TEXTREL) != 0) | |
2504 | { | |
2505 | if (! add_dynamic_entry (DT_TEXTREL, 0)) | |
2506 | return FALSE; | |
2507 | } | |
73589c9d CS |
2508 | } |
2509 | } | |
2510 | ||
2511 | #undef add_dynamic_entry | |
2512 | return TRUE; | |
2513 | } | |
2514 | ||
73589c9d CS |
2515 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
2516 | ||
2517 | static void | |
2518 | or1k_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
07d6d2b8 AM |
2519 | struct elf_link_hash_entry *dir, |
2520 | struct elf_link_hash_entry *ind) | |
73589c9d CS |
2521 | { |
2522 | struct elf_or1k_link_hash_entry * edir; | |
2523 | struct elf_or1k_link_hash_entry * eind; | |
2524 | ||
2525 | edir = (struct elf_or1k_link_hash_entry *) dir; | |
2526 | eind = (struct elf_or1k_link_hash_entry *) ind; | |
2527 | ||
2528 | if (eind->dyn_relocs != NULL) | |
2529 | { | |
2530 | if (edir->dyn_relocs != NULL) | |
07d6d2b8 AM |
2531 | { |
2532 | struct elf_dyn_relocs **pp; | |
2533 | struct elf_dyn_relocs *p; | |
2534 | ||
2535 | /* Add reloc counts against the indirect sym to the direct sym | |
2536 | list. Merge any entries against the same section. */ | |
2537 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL;) | |
2538 | { | |
2539 | struct elf_dyn_relocs *q; | |
2540 | ||
2541 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
2542 | if (q->sec == p->sec) | |
2543 | { | |
2544 | q->pc_count += p->pc_count; | |
2545 | q->count += p->count; | |
2546 | *pp = p->next; | |
2547 | break; | |
2548 | } | |
2549 | if (q == NULL) | |
2550 | pp = &p->next; | |
2551 | } | |
2552 | *pp = edir->dyn_relocs; | |
2553 | } | |
73589c9d CS |
2554 | |
2555 | edir->dyn_relocs = eind->dyn_relocs; | |
2556 | eind->dyn_relocs = NULL; | |
2557 | } | |
2558 | ||
2559 | if (ind->root.type == bfd_link_hash_indirect) | |
2560 | { | |
2561 | if (dir->got.refcount <= 0) | |
07d6d2b8 AM |
2562 | { |
2563 | edir->tls_type = eind->tls_type; | |
2564 | eind->tls_type = TLS_UNKNOWN; | |
2565 | } | |
73589c9d CS |
2566 | } |
2567 | ||
2568 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
2569 | } | |
2570 | ||
2571 | /* Set the right machine number. */ | |
2572 | ||
2573 | static bfd_boolean | |
2574 | or1k_elf_object_p (bfd *abfd) | |
2575 | { | |
2576 | unsigned long mach = bfd_mach_or1k; | |
2577 | ||
2578 | if (elf_elfheader (abfd)->e_flags & EF_OR1K_NODELAY) | |
2579 | mach = bfd_mach_or1knd; | |
2580 | ||
2581 | return bfd_default_set_arch_mach (abfd, bfd_arch_or1k, mach); | |
2582 | } | |
2583 | ||
2584 | /* Store the machine number in the flags field. */ | |
2585 | ||
2586 | static void | |
2587 | or1k_elf_final_write_processing (bfd *abfd, | |
2588 | bfd_boolean linker ATTRIBUTE_UNUSED) | |
2589 | { | |
2590 | switch (bfd_get_mach (abfd)) | |
2591 | { | |
2592 | default: | |
2593 | case bfd_mach_or1k: | |
2594 | break; | |
2595 | case bfd_mach_or1knd: | |
2596 | elf_elfheader (abfd)->e_flags |= EF_OR1K_NODELAY; | |
2597 | break; | |
2598 | } | |
2599 | } | |
2600 | ||
2601 | static bfd_boolean | |
2602 | or1k_elf_set_private_flags (bfd *abfd, flagword flags) | |
2603 | { | |
2604 | BFD_ASSERT (!elf_flags_init (abfd) | |
07d6d2b8 | 2605 | || elf_elfheader (abfd)->e_flags == flags); |
73589c9d CS |
2606 | |
2607 | elf_elfheader (abfd)->e_flags = flags; | |
2608 | elf_flags_init (abfd) = TRUE; | |
2609 | return TRUE; | |
2610 | } | |
2611 | ||
2612 | /* Make sure all input files are consistent with respect to | |
2613 | EF_OR1K_NODELAY flag setting. */ | |
2614 | ||
2615 | static bfd_boolean | |
50e03d47 | 2616 | elf32_or1k_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
73589c9d | 2617 | { |
50e03d47 | 2618 | bfd *obfd = info->output_bfd; |
73589c9d CS |
2619 | flagword out_flags; |
2620 | flagword in_flags; | |
2621 | ||
2622 | in_flags = elf_elfheader (ibfd)->e_flags; | |
2623 | out_flags = elf_elfheader (obfd)->e_flags; | |
2624 | ||
2625 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2626 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
2627 | return TRUE; | |
2628 | ||
2629 | if (!elf_flags_init (obfd)) | |
2630 | { | |
2631 | elf_flags_init (obfd) = TRUE; | |
2632 | elf_elfheader (obfd)->e_flags = in_flags; | |
2633 | ||
2634 | return TRUE; | |
2635 | } | |
2636 | ||
2637 | if (in_flags == out_flags) | |
2638 | return TRUE; | |
2639 | ||
2640 | if ((in_flags & EF_OR1K_NODELAY) != (out_flags & EF_OR1K_NODELAY)) | |
2641 | { | |
4eca0228 | 2642 | _bfd_error_handler |
38f14ab8 AM |
2643 | (_("%pB: %s flag mismatch with previous modules"), |
2644 | ibfd, "EF_OR1K_NODELAY"); | |
73589c9d CS |
2645 | |
2646 | bfd_set_error (bfd_error_bad_value); | |
2647 | return FALSE; | |
2648 | } | |
2649 | ||
2650 | return TRUE; | |
2651 | ||
2652 | } | |
2653 | ||
07d6d2b8 AM |
2654 | #define ELF_ARCH bfd_arch_or1k |
2655 | #define ELF_MACHINE_CODE EM_OR1K | |
2656 | #define ELF_TARGET_ID OR1K_ELF_DATA | |
2657 | #define ELF_MAXPAGESIZE 0x2000 | |
73589c9d | 2658 | |
07d6d2b8 AM |
2659 | #define TARGET_BIG_SYM or1k_elf32_vec |
2660 | #define TARGET_BIG_NAME "elf32-or1k" | |
73589c9d | 2661 | |
07d6d2b8 AM |
2662 | #define elf_info_to_howto_rel NULL |
2663 | #define elf_info_to_howto or1k_info_to_howto_rela | |
2664 | #define elf_backend_relocate_section or1k_elf_relocate_section | |
2665 | #define elf_backend_gc_mark_hook or1k_elf_gc_mark_hook | |
2666 | #define elf_backend_check_relocs or1k_elf_check_relocs | |
2667 | #define elf_backend_reloc_type_class or1k_elf_reloc_type_class | |
2668 | #define elf_backend_can_gc_sections 1 | |
2669 | #define elf_backend_rela_normal 1 | |
73589c9d | 2670 | |
07d6d2b8 | 2671 | #define bfd_elf32_mkobject elf_or1k_mkobject |
73589c9d CS |
2672 | |
2673 | #define bfd_elf32_bfd_merge_private_bfd_data elf32_or1k_merge_private_bfd_data | |
2674 | #define bfd_elf32_bfd_set_private_flags or1k_elf_set_private_flags | |
2675 | #define bfd_elf32_bfd_reloc_type_lookup or1k_reloc_type_lookup | |
2676 | #define bfd_elf32_bfd_reloc_name_lookup or1k_reloc_name_lookup | |
2677 | ||
07d6d2b8 | 2678 | #define elf_backend_object_p or1k_elf_object_p |
73589c9d | 2679 | #define elf_backend_final_write_processing or1k_elf_final_write_processing |
07d6d2b8 | 2680 | #define elf_backend_can_refcount 1 |
73589c9d | 2681 | |
07d6d2b8 AM |
2682 | #define elf_backend_plt_readonly 1 |
2683 | #define elf_backend_want_got_plt 1 | |
2684 | #define elf_backend_want_plt_sym 0 | |
2685 | #define elf_backend_got_header_size 12 | |
64f52338 | 2686 | #define elf_backend_dtrel_excludes_plt 1 |
5474d94f | 2687 | #define elf_backend_want_dynrelro 1 |
64f52338 | 2688 | |
07d6d2b8 AM |
2689 | #define bfd_elf32_bfd_link_hash_table_create or1k_elf_link_hash_table_create |
2690 | #define elf_backend_copy_indirect_symbol or1k_elf_copy_indirect_symbol | |
2691 | #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections | |
2692 | #define elf_backend_finish_dynamic_sections or1k_elf_finish_dynamic_sections | |
2693 | #define elf_backend_size_dynamic_sections or1k_elf_size_dynamic_sections | |
2694 | #define elf_backend_adjust_dynamic_symbol or1k_elf_adjust_dynamic_symbol | |
2695 | #define elf_backend_finish_dynamic_symbol or1k_elf_finish_dynamic_symbol | |
73589c9d CS |
2696 | |
2697 | #include "elf32-target.h" |