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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 | ||
f3185997 | 704 | static bfd_boolean |
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); | |
f3185997 NC |
717 | bfd_set_error (bfd_error_bad_value); |
718 | return FALSE; | |
5860e3f8 | 719 | } |
73589c9d | 720 | cache_ptr->howto = & or1k_elf_howto_table[r_type]; |
f3185997 | 721 | return TRUE; |
73589c9d CS |
722 | } |
723 | ||
724 | ||
725 | /* Return the relocation value for @tpoff relocations.. */ | |
726 | static bfd_vma | |
727 | tpoff (struct bfd_link_info *info, bfd_vma address) | |
728 | { | |
729 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
730 | if (elf_hash_table (info)->tls_sec == NULL) | |
731 | return 0; | |
732 | ||
733 | /* The thread pointer on or1k stores the address after the TCB where | |
734 | the data is, just compute the difference. No need to compensate | |
735 | for the size of TCB. */ | |
736 | return (address - elf_hash_table (info)->tls_sec->vma); | |
737 | } | |
738 | ||
739 | /* Relocate an Or1k ELF section. | |
740 | ||
741 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
742 | to handle the relocations for a section. | |
743 | ||
744 | The relocs are always passed as Rela structures; if the section | |
745 | actually uses Rel structures, the r_addend field will always be | |
746 | zero. | |
747 | ||
748 | This function is responsible for adjusting the section contents as | |
749 | necessary, and (if using Rela relocs and generating a relocatable | |
750 | output file) adjusting the reloc addend as necessary. | |
751 | ||
752 | This function does not have to worry about setting the reloc | |
753 | address or the reloc symbol index. | |
754 | ||
755 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
756 | ||
757 | LOCAL_SECTIONS is an array giving the section in the input file | |
758 | corresponding to the st_shndx field of each local symbol. | |
759 | ||
760 | The global hash table entry for the global symbols can be found | |
761 | via elf_sym_hashes (input_bfd). | |
762 | ||
763 | When generating relocatable output, this function must handle | |
764 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
765 | going to be the section symbol corresponding to the output | |
766 | section, which means that the addend must be adjusted | |
767 | accordingly. */ | |
768 | ||
769 | static bfd_boolean | |
770 | or1k_elf_relocate_section (bfd *output_bfd, | |
771 | struct bfd_link_info *info, | |
772 | bfd *input_bfd, | |
773 | asection *input_section, | |
774 | bfd_byte *contents, | |
775 | Elf_Internal_Rela *relocs, | |
776 | Elf_Internal_Sym *local_syms, | |
777 | asection **local_sections) | |
778 | { | |
779 | Elf_Internal_Shdr *symtab_hdr; | |
780 | struct elf_link_hash_entry **sym_hashes; | |
781 | Elf_Internal_Rela *rel; | |
782 | Elf_Internal_Rela *relend; | |
783 | struct elf_or1k_link_hash_table *htab = or1k_elf_hash_table (info); | |
784 | bfd *dynobj; | |
785 | asection *sreloc; | |
786 | bfd_vma *local_got_offsets; | |
787 | asection *sgot; | |
788 | ||
789 | if (htab == NULL) | |
790 | return FALSE; | |
791 | ||
792 | dynobj = htab->root.dynobj; | |
793 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
794 | ||
795 | sreloc = elf_section_data (input_section)->sreloc; | |
796 | ||
ce558b89 | 797 | sgot = htab->root.sgot; |
73589c9d CS |
798 | |
799 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
800 | sym_hashes = elf_sym_hashes (input_bfd); | |
801 | relend = relocs + input_section->reloc_count; | |
802 | ||
803 | for (rel = relocs; rel < relend; rel++) | |
804 | { | |
805 | reloc_howto_type *howto; | |
806 | unsigned long r_symndx; | |
807 | Elf_Internal_Sym *sym; | |
808 | asection *sec; | |
809 | struct elf_link_hash_entry *h; | |
810 | bfd_vma relocation; | |
811 | bfd_reloc_status_type r; | |
812 | const char *name = NULL; | |
813 | int r_type; | |
814 | ||
815 | r_type = ELF32_R_TYPE (rel->r_info); | |
816 | r_symndx = ELF32_R_SYM (rel->r_info); | |
817 | ||
818 | if (r_type == R_OR1K_GNU_VTINHERIT | |
07d6d2b8 AM |
819 | || r_type == R_OR1K_GNU_VTENTRY) |
820 | continue; | |
73589c9d CS |
821 | |
822 | if (r_type < 0 || r_type >= (int) R_OR1K_max) | |
07d6d2b8 AM |
823 | { |
824 | bfd_set_error (bfd_error_bad_value); | |
825 | return FALSE; | |
826 | } | |
73589c9d CS |
827 | |
828 | howto = or1k_elf_howto_table + ELF32_R_TYPE (rel->r_info); | |
829 | h = NULL; | |
830 | sym = NULL; | |
831 | sec = NULL; | |
832 | ||
833 | if (r_symndx < symtab_hdr->sh_info) | |
07d6d2b8 AM |
834 | { |
835 | sym = local_syms + r_symndx; | |
836 | sec = local_sections[r_symndx]; | |
837 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
838 | ||
839 | name = bfd_elf_string_from_elf_section | |
840 | (input_bfd, symtab_hdr->sh_link, sym->st_name); | |
841 | name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name; | |
842 | } | |
73589c9d | 843 | else |
07d6d2b8 AM |
844 | { |
845 | bfd_boolean unresolved_reloc, warned, ignored; | |
73589c9d | 846 | |
07d6d2b8 AM |
847 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
848 | r_symndx, symtab_hdr, sym_hashes, | |
849 | h, sec, relocation, | |
850 | unresolved_reloc, warned, ignored); | |
851 | } | |
73589c9d CS |
852 | |
853 | if (sec != NULL && discarded_section (sec)) | |
07d6d2b8 AM |
854 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
855 | rel, 1, relend, howto, 0, contents); | |
73589c9d | 856 | |
0e1862bb | 857 | if (bfd_link_relocatable (info)) |
07d6d2b8 | 858 | continue; |
73589c9d CS |
859 | |
860 | switch (howto->type) | |
07d6d2b8 AM |
861 | { |
862 | case R_OR1K_PLT26: | |
863 | { | |
864 | if (htab->root.splt != NULL && h != NULL | |
865 | && h->plt.offset != (bfd_vma) -1) | |
866 | { | |
867 | relocation = (htab->root.splt->output_section->vma | |
868 | + htab->root.splt->output_offset | |
869 | + h->plt.offset); | |
870 | } | |
871 | break; | |
872 | } | |
873 | ||
874 | case R_OR1K_GOT16: | |
875 | /* Relocation is to the entry for this symbol in the global | |
876 | offset table. */ | |
877 | BFD_ASSERT (sgot != NULL); | |
878 | if (h != NULL) | |
879 | { | |
880 | bfd_boolean dyn; | |
881 | bfd_vma off; | |
882 | ||
883 | off = h->got.offset; | |
884 | BFD_ASSERT (off != (bfd_vma) -1); | |
885 | ||
886 | dyn = htab->root.dynamic_sections_created; | |
887 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, | |
0e1862bb L |
888 | bfd_link_pic (info), |
889 | h) | |
07d6d2b8 AM |
890 | || (bfd_link_pic (info) |
891 | && SYMBOL_REFERENCES_LOCAL (info, h))) | |
892 | { | |
893 | /* This is actually a static link, or it is a | |
894 | -Bsymbolic link and the symbol is defined | |
895 | locally, or the symbol was forced to be local | |
896 | because of a version file. We must initialize | |
897 | this entry in the global offset table. Since the | |
898 | offset must always be a multiple of 4, we use the | |
899 | least significant bit to record whether we have | |
900 | initialized it already. | |
901 | ||
902 | When doing a dynamic link, we create a .rela.got | |
903 | relocation entry to initialize the value. This | |
904 | is done in the finish_dynamic_symbol routine. */ | |
905 | if ((off & 1) != 0) | |
906 | off &= ~1; | |
907 | else | |
908 | { | |
909 | /* Write entry in GOT. */ | |
910 | bfd_put_32 (output_bfd, relocation, | |
911 | sgot->contents + off); | |
912 | /* Mark GOT entry as having been written. */ | |
913 | h->got.offset |= 1; | |
914 | } | |
915 | } | |
916 | ||
917 | relocation = sgot->output_offset + off; | |
918 | } | |
919 | else | |
920 | { | |
921 | bfd_vma off; | |
922 | bfd_byte *loc; | |
923 | ||
924 | BFD_ASSERT (local_got_offsets != NULL | |
925 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
926 | ||
927 | /* Get offset into GOT table. */ | |
928 | off = local_got_offsets[r_symndx]; | |
929 | ||
930 | /* The offset must always be a multiple of 4. We use | |
931 | the least significant bit to record whether we have | |
932 | already processed this entry. */ | |
933 | if ((off & 1) != 0) | |
934 | off &= ~1; | |
935 | else | |
936 | { | |
937 | /* Write entry in GOT. */ | |
938 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
939 | if (bfd_link_pic (info)) | |
940 | { | |
941 | asection *srelgot; | |
942 | Elf_Internal_Rela outrel; | |
943 | ||
944 | /* We need to generate a R_OR1K_RELATIVE reloc | |
945 | for the dynamic linker. */ | |
946 | srelgot = htab->root.srelgot; | |
947 | BFD_ASSERT (srelgot != NULL); | |
948 | ||
949 | outrel.r_offset = (sgot->output_section->vma | |
950 | + sgot->output_offset | |
951 | + off); | |
952 | outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE); | |
953 | outrel.r_addend = relocation; | |
954 | loc = srelgot->contents; | |
955 | loc += srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
956 | bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc); | |
957 | ++srelgot->reloc_count; | |
958 | } | |
959 | ||
960 | local_got_offsets[r_symndx] |= 1; | |
961 | } | |
962 | relocation = sgot->output_offset + off; | |
963 | } | |
964 | ||
965 | /* Addend should be zero. */ | |
966 | if (rel->r_addend != 0) | |
4eca0228 | 967 | _bfd_error_handler |
38f14ab8 AM |
968 | (_("internal error: addend should be zero for %s"), |
969 | "R_OR1K_GOT16"); | |
73589c9d | 970 | |
07d6d2b8 | 971 | break; |
73589c9d | 972 | |
07d6d2b8 AM |
973 | case R_OR1K_GOTOFF_LO16: |
974 | case R_OR1K_GOTOFF_HI16: | |
975 | /* Relocation is offset from GOT. */ | |
976 | BFD_ASSERT (sgot != NULL); | |
eacfca90 AM |
977 | relocation |
978 | -= (htab->root.hgot->root.u.def.value | |
979 | + htab->root.hgot->root.u.def.section->output_offset | |
980 | + htab->root.hgot->root.u.def.section->output_section->vma); | |
07d6d2b8 AM |
981 | break; |
982 | ||
983 | case R_OR1K_INSN_REL_26: | |
984 | case R_OR1K_HI_16_IN_INSN: | |
985 | case R_OR1K_LO_16_IN_INSN: | |
986 | case R_OR1K_32: | |
987 | /* R_OR1K_16? */ | |
988 | { | |
989 | /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols | |
990 | from removed linkonce sections, or sections discarded by | |
991 | a linker script. */ | |
992 | if (r_symndx == STN_UNDEF | |
993 | || (input_section->flags & SEC_ALLOC) == 0) | |
994 | break; | |
995 | ||
996 | if ((bfd_link_pic (info) | |
997 | && (h == NULL | |
998 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
999 | || h->root.type != bfd_link_hash_undefweak) | |
ffccb7af SK |
1000 | && (howto->type != R_OR1K_INSN_REL_26 |
1001 | || !SYMBOL_CALLS_LOCAL (info, h))) | |
07d6d2b8 AM |
1002 | || (!bfd_link_pic (info) |
1003 | && h != NULL | |
1004 | && h->dynindx != -1 | |
1005 | && !h->non_got_ref | |
1006 | && ((h->def_dynamic | |
1007 | && !h->def_regular) | |
1008 | || h->root.type == bfd_link_hash_undefweak | |
1009 | || h->root.type == bfd_link_hash_undefined))) | |
1010 | { | |
1011 | Elf_Internal_Rela outrel; | |
1012 | bfd_byte *loc; | |
1013 | bfd_boolean skip; | |
1014 | ||
1015 | /* When generating a shared object, these relocations | |
1016 | are copied into the output file to be resolved at run | |
1017 | time. */ | |
1018 | ||
1019 | BFD_ASSERT (sreloc != NULL); | |
1020 | ||
1021 | skip = FALSE; | |
1022 | ||
1023 | outrel.r_offset = | |
1024 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
1025 | rel->r_offset); | |
1026 | if (outrel.r_offset == (bfd_vma) -1) | |
1027 | skip = TRUE; | |
1028 | else if (outrel.r_offset == (bfd_vma) -2) | |
1029 | skip = TRUE; | |
1030 | outrel.r_offset += (input_section->output_section->vma | |
1031 | + input_section->output_offset); | |
1032 | ||
1033 | if (skip) | |
1034 | memset (&outrel, 0, sizeof outrel); | |
1035 | /* h->dynindx may be -1 if the symbol was marked to | |
1036 | become local. */ | |
1037 | else if (h != NULL | |
1038 | && ((! info->symbolic && h->dynindx != -1) | |
1039 | || !h->def_regular)) | |
1040 | { | |
1041 | BFD_ASSERT (h->dynindx != -1); | |
1042 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
1043 | outrel.r_addend = rel->r_addend; | |
1044 | } | |
1045 | else | |
1046 | { | |
1047 | if (r_type == R_OR1K_32) | |
1048 | { | |
1049 | outrel.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE); | |
1050 | outrel.r_addend = relocation + rel->r_addend; | |
1051 | } | |
1052 | else | |
1053 | { | |
1054 | BFD_FAIL (); | |
4eca0228 | 1055 | _bfd_error_handler |
871b3ab2 | 1056 | (_("%pB: probably compiled without -fPIC?"), |
07d6d2b8 AM |
1057 | input_bfd); |
1058 | bfd_set_error (bfd_error_bad_value); | |
1059 | return FALSE; | |
1060 | } | |
1061 | } | |
1062 | ||
1063 | loc = sreloc->contents; | |
1064 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1065 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
1066 | break; | |
1067 | } | |
1068 | break; | |
1069 | } | |
1070 | ||
1071 | case R_OR1K_TLS_LDM_HI16: | |
1072 | case R_OR1K_TLS_LDM_LO16: | |
1073 | case R_OR1K_TLS_LDO_HI16: | |
1074 | case R_OR1K_TLS_LDO_LO16: | |
1075 | /* TODO: implement support for local dynamic. */ | |
1076 | BFD_FAIL (); | |
4eca0228 | 1077 | _bfd_error_handler |
871b3ab2 | 1078 | (_("%pB: support for local dynamic not implemented"), |
07d6d2b8 AM |
1079 | input_bfd); |
1080 | bfd_set_error (bfd_error_bad_value); | |
1081 | return FALSE; | |
1082 | ||
1083 | ||
1084 | case R_OR1K_TLS_GD_HI16: | |
1085 | case R_OR1K_TLS_GD_LO16: | |
1086 | case R_OR1K_TLS_IE_HI16: | |
1087 | case R_OR1K_TLS_IE_LO16: | |
1088 | { | |
1089 | bfd_vma gotoff; | |
1090 | Elf_Internal_Rela rela; | |
1091 | bfd_byte *loc; | |
1092 | int dynamic; | |
1093 | ||
1094 | sreloc = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1095 | ||
1096 | /* Mark as TLS related GOT entry by setting | |
1097 | bit 2 as well as bit 1. */ | |
1098 | if (h != NULL) | |
1099 | { | |
1100 | gotoff = h->got.offset; | |
1101 | h->got.offset |= 3; | |
1102 | } | |
1103 | else | |
1104 | { | |
1105 | gotoff = local_got_offsets[r_symndx]; | |
1106 | local_got_offsets[r_symndx] |= 3; | |
1107 | } | |
1108 | ||
1109 | /* Only process the relocation once. */ | |
1110 | if (gotoff & 1) | |
1111 | { | |
1112 | relocation = sgot->output_offset + (gotoff & ~3); | |
1113 | break; | |
1114 | } | |
1115 | ||
1116 | BFD_ASSERT (elf_hash_table (info)->hgot == NULL | |
73589c9d CS |
1117 | || elf_hash_table (info)->hgot->root.u.def.value == 0); |
1118 | ||
07d6d2b8 AM |
1119 | /* Dynamic entries will require relocations. if we do not need |
1120 | them we will just use the default R_OR1K_NONE and | |
1121 | not set anything. */ | |
1122 | dynamic = bfd_link_pic (info) | |
73589c9d CS |
1123 | || (sec && (sec->flags & SEC_ALLOC) != 0 |
1124 | && h != NULL | |
1125 | && (h->root.type == bfd_link_hash_defweak || !h->def_regular)); | |
1126 | ||
07d6d2b8 AM |
1127 | /* Shared GD. */ |
1128 | if (dynamic && (howto->type == R_OR1K_TLS_GD_HI16 | |
73589c9d | 1129 | || howto->type == R_OR1K_TLS_GD_LO16)) |
07d6d2b8 AM |
1130 | { |
1131 | int i; | |
1132 | ||
1133 | /* Add DTPMOD and DTPOFF GOT and rela entries. */ | |
1134 | for (i = 0; i < 2; ++i) | |
1135 | { | |
1136 | rela.r_offset = sgot->output_section->vma + | |
1137 | sgot->output_offset + gotoff + i*4; | |
1138 | if (h != NULL && h->dynindx != -1) | |
1139 | { | |
1140 | rela.r_info = ELF32_R_INFO (h->dynindx, | |
1141 | (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF)); | |
1142 | rela.r_addend = 0; | |
1143 | } | |
1144 | else | |
1145 | { | |
1146 | rela.r_info = ELF32_R_INFO (0, | |
1147 | (i == 0 ? R_OR1K_TLS_DTPMOD : R_OR1K_TLS_DTPOFF)); | |
1148 | rela.r_addend = tpoff (info, relocation); | |
1149 | } | |
1150 | ||
1151 | loc = sreloc->contents; | |
1152 | loc += sreloc->reloc_count++ * | |
1153 | sizeof (Elf32_External_Rela); | |
1154 | ||
1155 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1156 | bfd_put_32 (output_bfd, 0, sgot->contents + gotoff + i*4); | |
1157 | } | |
1158 | } | |
1159 | /* Static GD. */ | |
1160 | else if (howto->type == R_OR1K_TLS_GD_HI16 | |
1161 | || howto->type == R_OR1K_TLS_GD_LO16) | |
1162 | { | |
1163 | bfd_put_32 (output_bfd, 1, sgot->contents + gotoff); | |
1164 | bfd_put_32 (output_bfd, tpoff (info, relocation), | |
1165 | sgot->contents + gotoff + 4); | |
1166 | } | |
1167 | /* Shared IE. */ | |
1168 | else if (dynamic) | |
1169 | { | |
1170 | /* Add TPOFF GOT and rela entries. */ | |
1171 | rela.r_offset = sgot->output_section->vma + | |
1172 | sgot->output_offset + gotoff; | |
1173 | if (h != NULL && h->dynindx != -1) | |
1174 | { | |
1175 | rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_TLS_TPOFF); | |
1176 | rela.r_addend = 0; | |
1177 | } | |
1178 | else | |
1179 | { | |
1180 | rela.r_info = ELF32_R_INFO (0, R_OR1K_TLS_TPOFF); | |
1181 | rela.r_addend = tpoff (info, relocation); | |
1182 | } | |
1183 | ||
1184 | loc = sreloc->contents; | |
1185 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1186 | ||
1187 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1188 | bfd_put_32 (output_bfd, 0, sgot->contents + gotoff); | |
1189 | } | |
1190 | /* Static IE. */ | |
1191 | else | |
1192 | { | |
1193 | bfd_put_32 (output_bfd, tpoff (info, relocation), | |
73589c9d | 1194 | sgot->contents + gotoff); |
07d6d2b8 AM |
1195 | } |
1196 | relocation = sgot->output_offset + gotoff; | |
1197 | break; | |
1198 | } | |
1199 | case R_OR1K_TLS_LE_HI16: | |
1200 | case R_OR1K_TLS_LE_LO16: | |
1201 | ||
1202 | /* Relocation is offset from TP. */ | |
1203 | relocation = tpoff (info, relocation); | |
1204 | break; | |
1205 | ||
1206 | case R_OR1K_TLS_DTPMOD: | |
1207 | case R_OR1K_TLS_DTPOFF: | |
1208 | case R_OR1K_TLS_TPOFF: | |
1209 | /* These are resolved dynamically on load and shouldn't | |
1210 | be used as linker input. */ | |
1211 | BFD_FAIL (); | |
4eca0228 | 1212 | _bfd_error_handler |
871b3ab2 | 1213 | (_("%pB: will not resolve runtime TLS relocation"), |
07d6d2b8 AM |
1214 | input_bfd); |
1215 | bfd_set_error (bfd_error_bad_value); | |
1216 | return FALSE; | |
1217 | ||
1218 | default: | |
1219 | break; | |
1220 | } | |
73589c9d | 1221 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, |
07d6d2b8 | 1222 | rel->r_offset, relocation, rel->r_addend); |
73589c9d CS |
1223 | |
1224 | if (r != bfd_reloc_ok) | |
07d6d2b8 AM |
1225 | { |
1226 | const char *msg = NULL; | |
73589c9d | 1227 | |
07d6d2b8 AM |
1228 | switch (r) |
1229 | { | |
1230 | case bfd_reloc_overflow: | |
1a72702b | 1231 | (*info->callbacks->reloc_overflow) |
07d6d2b8 AM |
1232 | (info, (h ? &h->root : NULL), name, howto->name, |
1233 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
1234 | break; | |
73589c9d | 1235 | |
07d6d2b8 | 1236 | case bfd_reloc_undefined: |
1a72702b | 1237 | (*info->callbacks->undefined_symbol) |
07d6d2b8 AM |
1238 | (info, name, input_bfd, input_section, rel->r_offset, TRUE); |
1239 | break; | |
73589c9d | 1240 | |
07d6d2b8 AM |
1241 | case bfd_reloc_outofrange: |
1242 | msg = _("internal error: out of range error"); | |
1243 | break; | |
73589c9d | 1244 | |
07d6d2b8 AM |
1245 | case bfd_reloc_notsupported: |
1246 | msg = _("internal error: unsupported relocation error"); | |
1247 | break; | |
73589c9d | 1248 | |
07d6d2b8 AM |
1249 | case bfd_reloc_dangerous: |
1250 | msg = _("internal error: dangerous relocation"); | |
1251 | break; | |
73589c9d | 1252 | |
07d6d2b8 AM |
1253 | default: |
1254 | msg = _("internal error: unknown error"); | |
1255 | break; | |
1256 | } | |
73589c9d | 1257 | |
07d6d2b8 | 1258 | if (msg) |
1a72702b AM |
1259 | (*info->callbacks->warning) (info, msg, name, input_bfd, |
1260 | input_section, rel->r_offset); | |
07d6d2b8 | 1261 | } |
73589c9d CS |
1262 | } |
1263 | ||
1264 | return TRUE; | |
1265 | } | |
1266 | ||
1267 | /* Return the section that should be marked against GC for a given | |
1268 | relocation. */ | |
1269 | ||
1270 | static asection * | |
1271 | or1k_elf_gc_mark_hook (asection *sec, | |
1272 | struct bfd_link_info *info, | |
1273 | Elf_Internal_Rela *rel, | |
1274 | struct elf_link_hash_entry *h, | |
1275 | Elf_Internal_Sym *sym) | |
1276 | { | |
1277 | if (h != NULL) | |
1278 | switch (ELF32_R_TYPE (rel->r_info)) | |
1279 | { | |
1280 | case R_OR1K_GNU_VTINHERIT: | |
1281 | case R_OR1K_GNU_VTENTRY: | |
07d6d2b8 | 1282 | return NULL; |
73589c9d CS |
1283 | } |
1284 | ||
1285 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
1286 | } | |
1287 | ||
73589c9d CS |
1288 | /* Look through the relocs for a section during the first phase. */ |
1289 | ||
1290 | static bfd_boolean | |
1291 | or1k_elf_check_relocs (bfd *abfd, | |
1292 | struct bfd_link_info *info, | |
1293 | asection *sec, | |
1294 | const Elf_Internal_Rela *relocs) | |
1295 | { | |
1296 | Elf_Internal_Shdr *symtab_hdr; | |
1297 | struct elf_link_hash_entry **sym_hashes; | |
1298 | const Elf_Internal_Rela *rel; | |
1299 | ||
1300 | const Elf_Internal_Rela *rel_end; | |
1301 | struct elf_or1k_link_hash_table *htab; | |
1302 | bfd *dynobj; | |
1303 | asection *sreloc = NULL; | |
1304 | ||
0e1862bb | 1305 | if (bfd_link_relocatable (info)) |
73589c9d CS |
1306 | return TRUE; |
1307 | ||
65281396 AM |
1308 | /* Don't do anything special with non-loaded, non-alloced sections. |
1309 | In particular, any relocs in such sections should not affect GOT | |
1310 | and PLT reference counting (ie. we don't allow them to create GOT | |
1311 | or PLT entries), there's no possibility or desire to optimize TLS | |
1312 | relocs, and there's not much point in propagating relocs to shared | |
1313 | libs that the dynamic linker won't relocate. */ | |
1314 | if ((sec->flags & SEC_ALLOC) == 0) | |
1315 | return TRUE; | |
1316 | ||
73589c9d CS |
1317 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1318 | sym_hashes = elf_sym_hashes (abfd); | |
1319 | ||
1320 | htab = or1k_elf_hash_table (info); | |
1321 | if (htab == NULL) | |
1322 | return FALSE; | |
1323 | ||
1324 | dynobj = htab->root.dynobj; | |
1325 | ||
1326 | rel_end = relocs + sec->reloc_count; | |
1327 | for (rel = relocs; rel < rel_end; rel++) | |
1328 | { | |
1329 | struct elf_link_hash_entry *h; | |
1330 | unsigned long r_symndx; | |
1331 | unsigned char tls_type; | |
1332 | ||
1333 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1334 | if (r_symndx < symtab_hdr->sh_info) | |
07d6d2b8 | 1335 | h = NULL; |
73589c9d | 1336 | else |
07d6d2b8 AM |
1337 | { |
1338 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1339 | while (h->root.type == bfd_link_hash_indirect | |
1340 | || h->root.type == bfd_link_hash_warning) | |
1341 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1342 | } | |
73589c9d CS |
1343 | |
1344 | switch (ELF32_R_TYPE (rel->r_info)) | |
07d6d2b8 AM |
1345 | { |
1346 | case R_OR1K_TLS_GD_HI16: | |
1347 | case R_OR1K_TLS_GD_LO16: | |
1348 | tls_type = TLS_GD; | |
1349 | break; | |
1350 | case R_OR1K_TLS_LDM_HI16: | |
1351 | case R_OR1K_TLS_LDM_LO16: | |
1352 | case R_OR1K_TLS_LDO_HI16: | |
1353 | case R_OR1K_TLS_LDO_LO16: | |
1354 | tls_type = TLS_LD; | |
1355 | break; | |
1356 | case R_OR1K_TLS_IE_HI16: | |
1357 | case R_OR1K_TLS_IE_LO16: | |
1358 | tls_type = TLS_IE; | |
1359 | break; | |
1360 | case R_OR1K_TLS_LE_HI16: | |
1361 | case R_OR1K_TLS_LE_LO16: | |
1362 | tls_type = TLS_LE; | |
1363 | break; | |
1364 | default: | |
1365 | tls_type = TLS_NONE; | |
1366 | } | |
73589c9d CS |
1367 | |
1368 | /* Record TLS type. */ | |
1369 | if (h != NULL) | |
07d6d2b8 | 1370 | ((struct elf_or1k_link_hash_entry *) h)->tls_type = tls_type; |
73589c9d | 1371 | else |
07d6d2b8 AM |
1372 | { |
1373 | unsigned char *local_tls_type; | |
1374 | ||
1375 | /* This is a TLS type record for a local symbol. */ | |
1376 | local_tls_type = (unsigned char *) elf_or1k_local_tls_type (abfd); | |
1377 | if (local_tls_type == NULL) | |
1378 | { | |
1379 | bfd_size_type size; | |
1380 | ||
1381 | size = symtab_hdr->sh_info; | |
1382 | local_tls_type = bfd_zalloc (abfd, size); | |
1383 | if (local_tls_type == NULL) | |
1384 | return FALSE; | |
1385 | elf_or1k_local_tls_type (abfd) = local_tls_type; | |
1386 | } | |
1387 | local_tls_type[r_symndx] = tls_type; | |
1388 | } | |
73589c9d CS |
1389 | |
1390 | switch (ELF32_R_TYPE (rel->r_info)) | |
07d6d2b8 AM |
1391 | { |
1392 | /* This relocation describes the C++ object vtable hierarchy. | |
1393 | Reconstruct it for later use during GC. */ | |
1394 | case R_OR1K_GNU_VTINHERIT: | |
1395 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
1396 | return FALSE; | |
1397 | break; | |
1398 | ||
1399 | /* This relocation describes which C++ vtable entries are actually | |
1400 | used. Record for later use during GC. */ | |
1401 | case R_OR1K_GNU_VTENTRY: | |
1402 | BFD_ASSERT (h != NULL); | |
1403 | if (h != NULL | |
1404 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
1405 | return FALSE; | |
1406 | break; | |
1407 | ||
1408 | /* This relocation requires .plt entry. */ | |
1409 | case R_OR1K_PLT26: | |
1410 | if (h != NULL) | |
1411 | { | |
1412 | h->needs_plt = 1; | |
1413 | h->plt.refcount += 1; | |
1414 | } | |
1415 | break; | |
1416 | ||
1417 | case R_OR1K_GOT16: | |
1418 | case R_OR1K_GOTOFF_HI16: | |
1419 | case R_OR1K_GOTOFF_LO16: | |
1420 | case R_OR1K_TLS_GD_HI16: | |
1421 | case R_OR1K_TLS_GD_LO16: | |
1422 | case R_OR1K_TLS_IE_HI16: | |
1423 | case R_OR1K_TLS_IE_LO16: | |
1424 | if (htab->root.sgot == NULL) | |
1425 | { | |
1426 | if (dynobj == NULL) | |
1427 | htab->root.dynobj = dynobj = abfd; | |
1428 | if (!_bfd_elf_create_got_section (dynobj, info)) | |
1429 | return FALSE; | |
1430 | } | |
1431 | ||
1432 | if (ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_HI16 && | |
1433 | ELF32_R_TYPE (rel->r_info) != R_OR1K_GOTOFF_LO16) | |
1434 | { | |
1435 | if (h != NULL) | |
1436 | h->got.refcount += 1; | |
1437 | else | |
1438 | { | |
1439 | bfd_signed_vma *local_got_refcounts; | |
1440 | ||
1441 | /* This is a global offset table entry for a local symbol. */ | |
1442 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1443 | if (local_got_refcounts == NULL) | |
1444 | { | |
1445 | bfd_size_type size; | |
1446 | ||
1447 | size = symtab_hdr->sh_info; | |
1448 | size *= sizeof (bfd_signed_vma); | |
1449 | local_got_refcounts = bfd_zalloc (abfd, size); | |
1450 | if (local_got_refcounts == NULL) | |
1451 | return FALSE; | |
1452 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1453 | } | |
1454 | local_got_refcounts[r_symndx] += 1; | |
1455 | } | |
1456 | } | |
1457 | break; | |
1458 | ||
1459 | case R_OR1K_INSN_REL_26: | |
1460 | case R_OR1K_HI_16_IN_INSN: | |
1461 | case R_OR1K_LO_16_IN_INSN: | |
1462 | case R_OR1K_32: | |
1463 | /* R_OR1K_16? */ | |
1464 | { | |
1465 | if (h != NULL && !bfd_link_pic (info)) | |
1466 | { | |
1467 | /* We may need a copy reloc. */ | |
1468 | h->non_got_ref = 1; | |
1469 | ||
1470 | /* We may also need a .plt entry. */ | |
1471 | h->plt.refcount += 1; | |
1472 | if (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26) | |
1473 | h->pointer_equality_needed = 1; | |
1474 | } | |
1475 | ||
1476 | /* If we are creating a shared library, and this is a reloc | |
1477 | against a global symbol, or a non PC relative reloc | |
1478 | against a local symbol, then we need to copy the reloc | |
1479 | into the shared library. However, if we are linking with | |
1480 | -Bsymbolic, we do not need to copy a reloc against a | |
1481 | global symbol which is defined in an object we are | |
1482 | including in the link (i.e., DEF_REGULAR is set). At | |
1483 | this point we have not seen all the input files, so it is | |
1484 | possible that DEF_REGULAR is not set now but will be set | |
1485 | later (it is never cleared). In case of a weak definition, | |
1486 | DEF_REGULAR may be cleared later by a strong definition in | |
1487 | a shared library. We account for that possibility below by | |
1488 | storing information in the relocs_copied field of the hash | |
1489 | table entry. A similar situation occurs when creating | |
1490 | shared libraries and symbol visibility changes render the | |
1491 | symbol local. | |
1492 | ||
1493 | If on the other hand, we are creating an executable, we | |
1494 | may need to keep relocations for symbols satisfied by a | |
1495 | dynamic library if we manage to avoid copy relocs for the | |
1496 | symbol. */ | |
1497 | ||
1498 | if ((bfd_link_pic (info) | |
1499 | && (sec->flags & SEC_ALLOC) != 0 | |
1500 | && (ELF32_R_TYPE (rel->r_info) != R_OR1K_INSN_REL_26 | |
1501 | || (h != NULL | |
1502 | && (!SYMBOLIC_BIND (info, h) | |
1503 | || h->root.type == bfd_link_hash_defweak | |
1504 | || !h->def_regular)))) | |
1505 | || (!bfd_link_pic (info) | |
1506 | && (sec->flags & SEC_ALLOC) != 0 | |
1507 | && h != NULL | |
1508 | && (h->root.type == bfd_link_hash_defweak | |
1509 | || !h->def_regular))) | |
1510 | { | |
1511 | struct elf_dyn_relocs *p; | |
1512 | struct elf_dyn_relocs **head; | |
1513 | ||
1514 | /* When creating a shared object, we must copy these | |
1515 | relocs into the output file. We create a reloc | |
1516 | section in dynobj and make room for the reloc. */ | |
1517 | if (sreloc == NULL) | |
1518 | { | |
1519 | const char *name; | |
1520 | unsigned int strndx = elf_elfheader (abfd)->e_shstrndx; | |
1521 | unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name; | |
1522 | ||
1523 | name = bfd_elf_string_from_elf_section (abfd, strndx, shnam); | |
1524 | if (name == NULL) | |
1525 | return FALSE; | |
1526 | ||
1527 | if (strncmp (name, ".rela", 5) != 0 | |
1528 | || strcmp (bfd_get_section_name (abfd, sec), | |
1529 | name + 5) != 0) | |
1530 | { | |
4eca0228 | 1531 | _bfd_error_handler |
695344c0 | 1532 | /* xgettext:c-format */ |
871b3ab2 | 1533 | (_("%pB: bad relocation section name `%s\'"), |
07d6d2b8 AM |
1534 | abfd, name); |
1535 | } | |
1536 | ||
1537 | if (htab->root.dynobj == NULL) | |
1538 | htab->root.dynobj = abfd; | |
1539 | dynobj = htab->root.dynobj; | |
1540 | ||
1541 | sreloc = bfd_get_section_by_name (dynobj, name); | |
1542 | if (sreloc == NULL) | |
1543 | { | |
1544 | sreloc = _bfd_elf_make_dynamic_reloc_section | |
1545 | (sec, dynobj, 2, abfd, /*rela?*/ TRUE); | |
1546 | ||
1547 | if (sreloc == NULL) | |
1548 | return FALSE; | |
1549 | } | |
1550 | elf_section_data (sec)->sreloc = sreloc; | |
1551 | } | |
1552 | ||
1553 | /* If this is a global symbol, we count the number of | |
1554 | relocations we need for this symbol. */ | |
1555 | if (h != NULL) | |
1556 | head = &((struct elf_or1k_link_hash_entry *) h)->dyn_relocs; | |
1557 | else | |
1558 | { | |
1559 | /* Track dynamic relocs needed for local syms too. | |
1560 | We really need local syms available to do this | |
1561 | easily. Oh well. */ | |
1562 | ||
1563 | asection *s; | |
1564 | Elf_Internal_Sym *isym; | |
1565 | void *vpp; | |
1566 | ||
1567 | isym = bfd_sym_from_r_symndx (&htab->sym_sec, | |
1568 | abfd, r_symndx); | |
1569 | if (isym == NULL) | |
1570 | return FALSE; | |
1571 | ||
1572 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
1573 | if (s == NULL) | |
1574 | return FALSE; | |
1575 | ||
1576 | vpp = &elf_section_data (s)->local_dynrel; | |
1577 | head = (struct elf_dyn_relocs **) vpp; | |
1578 | } | |
1579 | ||
1580 | p = *head; | |
1581 | if (p == NULL || p->sec != sec) | |
1582 | { | |
1583 | bfd_size_type amt = sizeof *p; | |
1584 | p = ((struct elf_dyn_relocs *) | |
1585 | bfd_alloc (htab->root.dynobj, amt)); | |
1586 | if (p == NULL) | |
1587 | return FALSE; | |
1588 | p->next = *head; | |
1589 | *head = p; | |
1590 | p->sec = sec; | |
1591 | p->count = 0; | |
1592 | p->pc_count = 0; | |
1593 | } | |
1594 | ||
1595 | p->count += 1; | |
1596 | if (ELF32_R_TYPE (rel->r_info) == R_OR1K_INSN_REL_26) | |
1597 | p->pc_count += 1; | |
1598 | } | |
1599 | } | |
1600 | break; | |
1601 | } | |
73589c9d CS |
1602 | } |
1603 | ||
1604 | return TRUE; | |
1605 | } | |
1606 | ||
1607 | /* Finish up the dynamic sections. */ | |
1608 | ||
1609 | static bfd_boolean | |
1610 | or1k_elf_finish_dynamic_sections (bfd *output_bfd, | |
07d6d2b8 | 1611 | struct bfd_link_info *info) |
73589c9d CS |
1612 | { |
1613 | bfd *dynobj; | |
1614 | asection *sdyn, *sgot; | |
1615 | struct elf_or1k_link_hash_table *htab; | |
1616 | ||
1617 | htab = or1k_elf_hash_table (info); | |
1618 | if (htab == NULL) | |
1619 | return FALSE; | |
1620 | ||
1621 | dynobj = htab->root.dynobj; | |
1622 | ||
ce558b89 | 1623 | sgot = htab->root.sgotplt; |
73589c9d CS |
1624 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); |
1625 | ||
1626 | if (htab->root.dynamic_sections_created) | |
1627 | { | |
1628 | asection *splt; | |
1629 | Elf32_External_Dyn *dyncon, *dynconend; | |
1630 | ||
1631 | BFD_ASSERT (sgot != NULL && sdyn != NULL); | |
1632 | ||
1633 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
1634 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
1635 | ||
1636 | for (; dyncon < dynconend; dyncon++) | |
07d6d2b8 AM |
1637 | { |
1638 | Elf_Internal_Dyn dyn; | |
1639 | asection *s; | |
73589c9d | 1640 | |
07d6d2b8 | 1641 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
73589c9d | 1642 | |
07d6d2b8 AM |
1643 | switch (dyn.d_tag) |
1644 | { | |
1645 | default: | |
1646 | continue; | |
73589c9d | 1647 | |
07d6d2b8 AM |
1648 | case DT_PLTGOT: |
1649 | s = htab->root.sgotplt; | |
1650 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
1651 | break; | |
73589c9d | 1652 | |
07d6d2b8 AM |
1653 | case DT_JMPREL: |
1654 | s = htab->root.srelplt; | |
1655 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
1656 | break; | |
73589c9d | 1657 | |
07d6d2b8 AM |
1658 | case DT_PLTRELSZ: |
1659 | s = htab->root.srelplt; | |
1660 | dyn.d_un.d_val = s->size; | |
1661 | break; | |
1662 | } | |
1663 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
1664 | } | |
73589c9d CS |
1665 | |
1666 | ||
1667 | /* Fill in the first entry in the procedure linkage table. */ | |
ce558b89 | 1668 | splt = htab->root.splt; |
73589c9d | 1669 | if (splt && splt->size > 0) |
07d6d2b8 AM |
1670 | { |
1671 | if (bfd_link_pic (info)) | |
1672 | { | |
1673 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, | |
1674 | splt->contents); | |
1675 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, | |
1676 | splt->contents + 4); | |
1677 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, | |
1678 | splt->contents + 8); | |
1679 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, | |
1680 | splt->contents + 12); | |
1681 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, | |
1682 | splt->contents + 16); | |
1683 | } | |
1684 | else | |
1685 | { | |
1686 | unsigned long addr; | |
1687 | /* addr = .got + 4 */ | |
1688 | addr = sgot->output_section->vma + sgot->output_offset + 4; | |
1689 | bfd_put_32 (output_bfd, | |
1690 | PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff), | |
1691 | splt->contents); | |
1692 | bfd_put_32 (output_bfd, | |
1693 | PLT0_ENTRY_WORD1 | (addr & 0xffff), | |
1694 | splt->contents + 4); | |
1695 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8); | |
1696 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12); | |
1697 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16); | |
1698 | } | |
1699 | ||
1700 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
1701 | } | |
73589c9d CS |
1702 | } |
1703 | ||
1704 | /* Set the first entry in the global offset table to the address of | |
1705 | the dynamic section. */ | |
1706 | if (sgot && sgot->size > 0) | |
1707 | { | |
1708 | if (sdyn == NULL) | |
07d6d2b8 | 1709 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); |
73589c9d | 1710 | else |
07d6d2b8 AM |
1711 | bfd_put_32 (output_bfd, |
1712 | sdyn->output_section->vma + sdyn->output_offset, | |
1713 | sgot->contents); | |
73589c9d CS |
1714 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; |
1715 | } | |
1716 | ||
ce558b89 AM |
1717 | if (htab->root.sgot && htab->root.sgot->size > 0) |
1718 | elf_section_data (htab->root.sgot->output_section)->this_hdr.sh_entsize = 4; | |
73589c9d CS |
1719 | |
1720 | return TRUE; | |
1721 | } | |
1722 | ||
1723 | /* Finish up dynamic symbol handling. We set the contents of various | |
1724 | dynamic sections here. */ | |
1725 | ||
1726 | static bfd_boolean | |
1727 | or1k_elf_finish_dynamic_symbol (bfd *output_bfd, | |
07d6d2b8 AM |
1728 | struct bfd_link_info *info, |
1729 | struct elf_link_hash_entry *h, | |
1730 | Elf_Internal_Sym *sym) | |
73589c9d CS |
1731 | { |
1732 | struct elf_or1k_link_hash_table *htab; | |
1733 | bfd_byte *loc; | |
1734 | ||
1735 | htab = or1k_elf_hash_table (info); | |
1736 | if (htab == NULL) | |
1737 | return FALSE; | |
1738 | ||
1739 | if (h->plt.offset != (bfd_vma) -1) | |
1740 | { | |
1741 | asection *splt; | |
1742 | asection *sgot; | |
1743 | asection *srela; | |
1744 | ||
1745 | bfd_vma plt_index; | |
1746 | bfd_vma got_offset; | |
1747 | bfd_vma got_addr; | |
1748 | Elf_Internal_Rela rela; | |
1749 | ||
1750 | /* This symbol has an entry in the procedure linkage table. Set | |
07d6d2b8 | 1751 | it up. */ |
73589c9d CS |
1752 | BFD_ASSERT (h->dynindx != -1); |
1753 | ||
ce558b89 AM |
1754 | splt = htab->root.splt; |
1755 | sgot = htab->root.sgotplt; | |
1756 | srela = htab->root.srelplt; | |
73589c9d CS |
1757 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); |
1758 | ||
1759 | /* Get the index in the procedure linkage table which | |
07d6d2b8 AM |
1760 | corresponds to this symbol. This is the index of this symbol |
1761 | in all the symbols for which we are making plt entries. The | |
1762 | first entry in the procedure linkage table is reserved. */ | |
73589c9d CS |
1763 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; |
1764 | ||
1765 | /* Get the offset into the .got table of the entry that | |
07d6d2b8 AM |
1766 | corresponds to this function. Each .got entry is 4 bytes. |
1767 | The first three are reserved. */ | |
73589c9d CS |
1768 | got_offset = (plt_index + 3) * 4; |
1769 | got_addr = got_offset; | |
1770 | ||
1771 | /* Fill in the entry in the procedure linkage table. */ | |
0e1862bb | 1772 | if (! bfd_link_pic (info)) |
07d6d2b8 AM |
1773 | { |
1774 | got_addr += htab->root.sgotplt->output_section->vma | |
1775 | + htab->root.sgotplt->output_offset; | |
1776 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD0 | ((got_addr >> 16) & 0xffff), | |
1777 | splt->contents + h->plt.offset); | |
1778 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD1 | (got_addr & 0xffff), | |
1779 | splt->contents + h->plt.offset + 4); | |
1780 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD2, | |
1781 | splt->contents + h->plt.offset + 8); | |
1782 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD3, | |
1783 | splt->contents + h->plt.offset + 12); | |
1784 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD4 | |
1785 | | plt_index * sizeof (Elf32_External_Rela), | |
1786 | splt->contents + h->plt.offset + 16); | |
1787 | } | |
73589c9d | 1788 | else |
07d6d2b8 AM |
1789 | { |
1790 | bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD0 | (got_addr & 0xffff), | |
1791 | splt->contents + h->plt.offset); | |
1792 | bfd_put_32 (output_bfd, PLT_PIC_ENTRY_WORD1 | |
1793 | | plt_index * sizeof (Elf32_External_Rela), | |
1794 | splt->contents + h->plt.offset + 4); | |
1795 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD2, | |
1796 | splt->contents + h->plt.offset + 8); | |
1797 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD3, | |
1798 | splt->contents + h->plt.offset + 12); | |
1799 | bfd_put_32 (output_bfd, (bfd_vma) PLT_PIC_ENTRY_WORD4, | |
1800 | splt->contents + h->plt.offset + 16); | |
1801 | } | |
73589c9d CS |
1802 | |
1803 | /* Fill in the entry in the global offset table. */ | |
1804 | bfd_put_32 (output_bfd, | |
07d6d2b8 AM |
1805 | (splt->output_section->vma |
1806 | + splt->output_offset), /* Same offset. */ | |
1807 | sgot->contents + got_offset); | |
73589c9d CS |
1808 | |
1809 | /* Fill in the entry in the .rela.plt section. */ | |
1810 | rela.r_offset = (sgot->output_section->vma | |
07d6d2b8 AM |
1811 | + sgot->output_offset |
1812 | + got_offset); | |
73589c9d CS |
1813 | rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_JMP_SLOT); |
1814 | rela.r_addend = 0; | |
1815 | loc = srela->contents; | |
1816 | loc += plt_index * sizeof (Elf32_External_Rela); | |
1817 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1818 | ||
1819 | if (!h->def_regular) | |
07d6d2b8 AM |
1820 | { |
1821 | /* Mark the symbol as undefined, rather than as defined in | |
1822 | the .plt section. Leave the value alone. */ | |
1823 | sym->st_shndx = SHN_UNDEF; | |
1824 | } | |
73589c9d CS |
1825 | |
1826 | } | |
1827 | ||
1828 | if (h->got.offset != (bfd_vma) -1 | |
1829 | && (h->got.offset & 2) == 0) /* Homemade TLS check. */ | |
1830 | { | |
1831 | asection *sgot; | |
1832 | asection *srela; | |
1833 | Elf_Internal_Rela rela; | |
1834 | ||
1835 | /* This symbol has an entry in the global offset table. Set it | |
07d6d2b8 | 1836 | up. */ |
ce558b89 AM |
1837 | sgot = htab->root.sgot; |
1838 | srela = htab->root.srelgot; | |
73589c9d CS |
1839 | BFD_ASSERT (sgot != NULL && srela != NULL); |
1840 | ||
1841 | rela.r_offset = (sgot->output_section->vma | |
07d6d2b8 AM |
1842 | + sgot->output_offset |
1843 | + (h->got.offset &~ 1)); | |
73589c9d CS |
1844 | |
1845 | /* If this is a -Bsymbolic link, and the symbol is defined | |
07d6d2b8 AM |
1846 | locally, we just want to emit a RELATIVE reloc. Likewise if |
1847 | the symbol was forced to be local because of a version file. | |
1848 | The entry in the global offset table will already have been | |
1849 | initialized in the relocate_section function. */ | |
0e1862bb | 1850 | if (bfd_link_pic (info) && SYMBOL_REFERENCES_LOCAL (info, h)) |
07d6d2b8 AM |
1851 | { |
1852 | rela.r_info = ELF32_R_INFO (0, R_OR1K_RELATIVE); | |
1853 | rela.r_addend = (h->root.u.def.value | |
1854 | + h->root.u.def.section->output_section->vma | |
1855 | + h->root.u.def.section->output_offset); | |
1856 | } | |
73589c9d | 1857 | else |
07d6d2b8 AM |
1858 | { |
1859 | BFD_ASSERT ((h->got.offset & 1) == 0); | |
1860 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); | |
1861 | rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_GLOB_DAT); | |
1862 | rela.r_addend = 0; | |
1863 | } | |
73589c9d CS |
1864 | |
1865 | loc = srela->contents; | |
1866 | loc += srela->reloc_count * sizeof (Elf32_External_Rela); | |
1867 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1868 | ++srela->reloc_count; | |
1869 | } | |
1870 | ||
1871 | if (h->needs_copy) | |
1872 | { | |
1873 | asection *s; | |
1874 | Elf_Internal_Rela rela; | |
1875 | ||
1876 | /* This symbols needs a copy reloc. Set it up. */ | |
1877 | BFD_ASSERT (h->dynindx != -1 | |
07d6d2b8 AM |
1878 | && (h->root.type == bfd_link_hash_defined |
1879 | || h->root.type == bfd_link_hash_defweak)); | |
73589c9d | 1880 | |
73589c9d | 1881 | rela.r_offset = (h->root.u.def.value |
07d6d2b8 AM |
1882 | + h->root.u.def.section->output_section->vma |
1883 | + h->root.u.def.section->output_offset); | |
73589c9d CS |
1884 | rela.r_info = ELF32_R_INFO (h->dynindx, R_OR1K_COPY); |
1885 | rela.r_addend = 0; | |
afbf7e8e | 1886 | if (h->root.u.def.section == htab->root.sdynrelro) |
5474d94f AM |
1887 | s = htab->root.sreldynrelro; |
1888 | else | |
1889 | s = htab->root.srelbss; | |
1890 | loc = s->contents + s->reloc_count * sizeof (Elf32_External_Rela); | |
73589c9d CS |
1891 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
1892 | ++s->reloc_count; | |
1893 | } | |
1894 | ||
1895 | /* Mark some specially defined symbols as absolute. */ | |
1896 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
1897 | || h == htab->root.hgot) | |
1898 | sym->st_shndx = SHN_ABS; | |
1899 | ||
1900 | return TRUE; | |
1901 | } | |
1902 | ||
1903 | static enum elf_reloc_type_class | |
1904 | or1k_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
07d6d2b8 AM |
1905 | const asection *rel_sec ATTRIBUTE_UNUSED, |
1906 | const Elf_Internal_Rela *rela) | |
73589c9d CS |
1907 | { |
1908 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
1909 | { | |
1910 | case R_OR1K_RELATIVE: return reloc_class_relative; | |
1911 | case R_OR1K_JMP_SLOT: return reloc_class_plt; | |
07d6d2b8 AM |
1912 | case R_OR1K_COPY: return reloc_class_copy; |
1913 | default: return reloc_class_normal; | |
73589c9d CS |
1914 | } |
1915 | } | |
1916 | ||
63c1f59d AM |
1917 | /* Find dynamic relocs for H that apply to read-only sections. */ |
1918 | ||
1919 | static asection * | |
1920 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
1921 | { | |
3bf083ed | 1922 | struct elf_dyn_relocs *p; |
63c1f59d AM |
1923 | struct elf_or1k_link_hash_entry *eh = (struct elf_or1k_link_hash_entry *) h; |
1924 | ||
1925 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1926 | { | |
1927 | asection *s = p->sec->output_section; | |
1928 | ||
1929 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1930 | return p->sec; | |
1931 | } | |
1932 | return NULL; | |
1933 | } | |
1934 | ||
73589c9d CS |
1935 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1936 | regular object. The current definition is in some section of the | |
1937 | dynamic object, but we're not including those sections. We have to | |
1938 | change the definition to something the rest of the link can | |
1939 | understand. */ | |
1940 | ||
1941 | static bfd_boolean | |
1942 | or1k_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
07d6d2b8 | 1943 | struct elf_link_hash_entry *h) |
73589c9d CS |
1944 | { |
1945 | struct elf_or1k_link_hash_table *htab; | |
73589c9d | 1946 | bfd *dynobj; |
5474d94f | 1947 | asection *s, *srel; |
73589c9d CS |
1948 | |
1949 | dynobj = elf_hash_table (info)->dynobj; | |
1950 | ||
1951 | /* Make sure we know what is going on here. */ | |
1952 | BFD_ASSERT (dynobj != NULL | |
07d6d2b8 AM |
1953 | && (h->needs_plt |
1954 | || h->is_weakalias | |
1955 | || (h->def_dynamic | |
1956 | && h->ref_regular | |
1957 | && !h->def_regular))); | |
73589c9d CS |
1958 | |
1959 | /* If this is a function, put it in the procedure linkage table. We | |
1960 | will fill in the contents of the procedure linkage table later, | |
1961 | when we know the address of the .got section. */ | |
1962 | if (h->type == STT_FUNC | |
1963 | || h->needs_plt) | |
1964 | { | |
0e1862bb | 1965 | if (! bfd_link_pic (info) |
07d6d2b8 AM |
1966 | && !h->def_dynamic |
1967 | && !h->ref_dynamic | |
1968 | && h->root.type != bfd_link_hash_undefweak | |
1969 | && h->root.type != bfd_link_hash_undefined) | |
1970 | { | |
1971 | /* This case can occur if we saw a PLT reloc in an input | |
1972 | file, but the symbol was never referred to by a dynamic | |
1973 | object. In such a case, we don't actually need to build | |
1974 | a procedure linkage table, and we can just do a PCREL | |
1975 | reloc instead. */ | |
1976 | h->plt.offset = (bfd_vma) -1; | |
1977 | h->needs_plt = 0; | |
1978 | } | |
73589c9d CS |
1979 | |
1980 | return TRUE; | |
1981 | } | |
1982 | else | |
1983 | h->plt.offset = (bfd_vma) -1; | |
1984 | ||
1985 | /* If this is a weak symbol, and there is a real definition, the | |
1986 | processor independent code will have arranged for us to see the | |
1987 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 1988 | if (h->is_weakalias) |
73589c9d | 1989 | { |
60d67dc8 AM |
1990 | struct elf_link_hash_entry *def = weakdef (h); |
1991 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
1992 | h->root.u.def.section = def->root.u.def.section; | |
1993 | h->root.u.def.value = def->root.u.def.value; | |
73589c9d CS |
1994 | return TRUE; |
1995 | } | |
1996 | ||
1997 | /* This is a reference to a symbol defined by a dynamic object which | |
1998 | is not a function. */ | |
1999 | ||
2000 | /* If we are creating a shared library, we must presume that the | |
2001 | only references to the symbol are via the global offset table. | |
2002 | For such cases we need not do anything here; the relocations will | |
2003 | be handled correctly by relocate_section. */ | |
0e1862bb | 2004 | if (bfd_link_pic (info)) |
73589c9d CS |
2005 | return TRUE; |
2006 | ||
2007 | /* If there are no references to this symbol that do not use the | |
2008 | GOT, we don't need to generate a copy reloc. */ | |
2009 | if (!h->non_got_ref) | |
2010 | return TRUE; | |
2011 | ||
2012 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
2013 | if (info->nocopyreloc) | |
2014 | { | |
2015 | h->non_got_ref = 0; | |
2016 | return TRUE; | |
2017 | } | |
2018 | ||
3bf083ed AM |
2019 | /* If we don't find any dynamic relocs in read-only sections, then |
2020 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
2021 | if (!readonly_dynrelocs (h)) | |
73589c9d CS |
2022 | { |
2023 | h->non_got_ref = 0; | |
2024 | return TRUE; | |
2025 | } | |
2026 | ||
2027 | /* We must allocate the symbol in our .dynbss section, which will | |
2028 | become part of the .bss section of the executable. There will be | |
2029 | an entry for this symbol in the .dynsym section. The dynamic | |
2030 | object will contain position independent code, so all references | |
2031 | from the dynamic object to this symbol will go through the global | |
2032 | offset table. The dynamic linker will use the .dynsym entry to | |
2033 | determine the address it must put in the global offset table, so | |
2034 | both the dynamic object and the regular object will refer to the | |
2035 | same memory location for the variable. */ | |
2036 | ||
2037 | htab = or1k_elf_hash_table (info); | |
2038 | if (htab == NULL) | |
2039 | return FALSE; | |
2040 | ||
73589c9d CS |
2041 | /* We must generate a R_OR1K_COPY reloc to tell the dynamic linker |
2042 | to copy the initial value out of the dynamic object and into the | |
2043 | runtime process image. We need to remember the offset into the | |
2044 | .rela.bss section we are going to use. */ | |
5474d94f | 2045 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
73589c9d | 2046 | { |
5474d94f AM |
2047 | s = htab->root.sdynrelro; |
2048 | srel = htab->root.sreldynrelro; | |
2049 | } | |
2050 | else | |
2051 | { | |
2052 | s = htab->root.sdynbss; | |
9d19e4fd | 2053 | srel = htab->root.srelbss; |
5474d94f AM |
2054 | } |
2055 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) | |
2056 | { | |
73589c9d CS |
2057 | srel->size += sizeof (Elf32_External_Rela); |
2058 | h->needs_copy = 1; | |
2059 | } | |
2060 | ||
6cabe1ea | 2061 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
73589c9d CS |
2062 | } |
2063 | ||
2064 | /* Allocate space in .plt, .got and associated reloc sections for | |
2065 | dynamic relocs. */ | |
2066 | ||
2067 | static bfd_boolean | |
2068 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) | |
2069 | { | |
2070 | struct bfd_link_info *info; | |
2071 | struct elf_or1k_link_hash_table *htab; | |
2072 | struct elf_or1k_link_hash_entry *eh; | |
3bf083ed | 2073 | struct elf_dyn_relocs *p; |
73589c9d CS |
2074 | |
2075 | if (h->root.type == bfd_link_hash_indirect) | |
2076 | return TRUE; | |
2077 | ||
2078 | info = (struct bfd_link_info *) inf; | |
2079 | htab = or1k_elf_hash_table (info); | |
2080 | if (htab == NULL) | |
2081 | return FALSE; | |
2082 | ||
2083 | eh = (struct elf_or1k_link_hash_entry *) h; | |
2084 | ||
2085 | if (htab->root.dynamic_sections_created | |
2086 | && h->plt.refcount > 0) | |
2087 | { | |
2088 | /* Make sure this symbol is output as a dynamic symbol. | |
07d6d2b8 | 2089 | Undefined weak syms won't yet be marked as dynamic. */ |
73589c9d | 2090 | if (h->dynindx == -1 |
07d6d2b8 AM |
2091 | && !h->forced_local) |
2092 | { | |
2093 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2094 | return FALSE; | |
2095 | } | |
73589c9d | 2096 | |
0e1862bb | 2097 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
07d6d2b8 AM |
2098 | { |
2099 | asection *s = htab->root.splt; | |
2100 | ||
2101 | /* If this is the first .plt entry, make room for the special | |
2102 | first entry. */ | |
2103 | if (s->size == 0) | |
2104 | s->size = PLT_ENTRY_SIZE; | |
2105 | ||
2106 | h->plt.offset = s->size; | |
2107 | ||
2108 | /* If this symbol is not defined in a regular file, and we are | |
2109 | not generating a shared library, then set the symbol to this | |
2110 | location in the .plt. This is required to make function | |
2111 | pointers compare as equal between the normal executable and | |
2112 | the shared library. */ | |
2113 | if (! bfd_link_pic (info) | |
2114 | && !h->def_regular) | |
2115 | { | |
2116 | h->root.u.def.section = s; | |
2117 | h->root.u.def.value = h->plt.offset; | |
2118 | } | |
2119 | ||
2120 | /* Make room for this entry. */ | |
2121 | s->size += PLT_ENTRY_SIZE; | |
2122 | ||
2123 | /* We also need to make an entry in the .got.plt section, which | |
2124 | will be placed in the .got section by the linker script. */ | |
2125 | htab->root.sgotplt->size += 4; | |
2126 | ||
2127 | /* We also need to make an entry in the .rel.plt section. */ | |
2128 | htab->root.srelplt->size += sizeof (Elf32_External_Rela); | |
2129 | } | |
73589c9d | 2130 | else |
07d6d2b8 AM |
2131 | { |
2132 | h->plt.offset = (bfd_vma) -1; | |
2133 | h->needs_plt = 0; | |
2134 | } | |
73589c9d CS |
2135 | } |
2136 | else | |
2137 | { | |
2138 | h->plt.offset = (bfd_vma) -1; | |
2139 | h->needs_plt = 0; | |
2140 | } | |
2141 | ||
2142 | if (h->got.refcount > 0) | |
2143 | { | |
2144 | asection *s; | |
2145 | bfd_boolean dyn; | |
2146 | unsigned char tls_type; | |
2147 | ||
2148 | /* Make sure this symbol is output as a dynamic symbol. | |
07d6d2b8 | 2149 | Undefined weak syms won't yet be marked as dynamic. */ |
73589c9d | 2150 | if (h->dynindx == -1 |
07d6d2b8 AM |
2151 | && !h->forced_local) |
2152 | { | |
2153 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2154 | return FALSE; | |
2155 | } | |
73589c9d | 2156 | |
ce558b89 | 2157 | s = htab->root.sgot; |
73589c9d CS |
2158 | |
2159 | h->got.offset = s->size; | |
2160 | ||
2161 | tls_type = ((struct elf_or1k_link_hash_entry *) h)->tls_type; | |
2162 | ||
2163 | /* TLS GD requires two GOT and two relocs. */ | |
2164 | if (tls_type == TLS_GD) | |
07d6d2b8 | 2165 | s->size += 8; |
73589c9d | 2166 | else |
07d6d2b8 | 2167 | s->size += 4; |
73589c9d | 2168 | dyn = htab->root.dynamic_sections_created; |
0e1862bb | 2169 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)) |
07d6d2b8 AM |
2170 | { |
2171 | if (tls_type == TLS_GD) | |
2172 | htab->root.srelgot->size += 2 * sizeof (Elf32_External_Rela); | |
2173 | else | |
2174 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); | |
2175 | } | |
73589c9d CS |
2176 | } |
2177 | else | |
2178 | h->got.offset = (bfd_vma) -1; | |
2179 | ||
2180 | if (eh->dyn_relocs == NULL) | |
2181 | return TRUE; | |
2182 | ||
2183 | /* In the shared -Bsymbolic case, discard space allocated for | |
2184 | dynamic pc-relative relocs against symbols which turn out to be | |
2185 | defined in regular objects. For the normal shared case, discard | |
2186 | space for pc-relative relocs that have become local due to symbol | |
2187 | visibility changes. */ | |
2188 | ||
0e1862bb | 2189 | if (bfd_link_pic (info)) |
73589c9d | 2190 | { |
ffccb7af | 2191 | if (SYMBOL_CALLS_LOCAL (info, h)) |
07d6d2b8 AM |
2192 | { |
2193 | struct elf_dyn_relocs **pp; | |
2194 | ||
2195 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL;) | |
2196 | { | |
2197 | p->count -= p->pc_count; | |
2198 | p->pc_count = 0; | |
2199 | if (p->count == 0) | |
2200 | *pp = p->next; | |
2201 | else | |
2202 | pp = &p->next; | |
2203 | } | |
2204 | } | |
73589c9d CS |
2205 | |
2206 | /* Also discard relocs on undefined weak syms with non-default | |
07d6d2b8 | 2207 | visibility. */ |
73589c9d | 2208 | if (eh->dyn_relocs != NULL |
07d6d2b8 AM |
2209 | && h->root.type == bfd_link_hash_undefweak) |
2210 | { | |
2211 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
2212 | eh->dyn_relocs = NULL; | |
2213 | ||
2214 | /* Make sure undefined weak symbols are output as a dynamic | |
2215 | symbol in PIEs. */ | |
2216 | else if (h->dynindx == -1 | |
2217 | && !h->forced_local) | |
2218 | { | |
2219 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2220 | return FALSE; | |
2221 | } | |
2222 | } | |
73589c9d CS |
2223 | } |
2224 | else | |
2225 | { | |
2226 | /* For the non-shared case, discard space for relocs against | |
07d6d2b8 AM |
2227 | symbols which turn out to need copy relocs or are not |
2228 | dynamic. */ | |
73589c9d CS |
2229 | |
2230 | if (!h->non_got_ref | |
07d6d2b8 AM |
2231 | && ((h->def_dynamic |
2232 | && !h->def_regular) | |
2233 | || (htab->root.dynamic_sections_created | |
2234 | && (h->root.type == bfd_link_hash_undefweak | |
2235 | || h->root.type == bfd_link_hash_undefined)))) | |
2236 | { | |
2237 | /* Make sure this symbol is output as a dynamic symbol. | |
2238 | Undefined weak syms won't yet be marked as dynamic. */ | |
2239 | if (h->dynindx == -1 | |
2240 | && !h->forced_local) | |
2241 | { | |
2242 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2243 | return FALSE; | |
2244 | } | |
2245 | ||
2246 | /* If that succeeded, we know we'll be keeping all the | |
2247 | relocs. */ | |
2248 | if (h->dynindx != -1) | |
2249 | goto keep; | |
2250 | } | |
73589c9d CS |
2251 | |
2252 | eh->dyn_relocs = NULL; | |
2253 | ||
2254 | keep: ; | |
2255 | } | |
2256 | ||
2257 | /* Finally, allocate space. */ | |
2258 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2259 | { | |
2260 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
2261 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
2262 | } | |
2263 | ||
2264 | return TRUE; | |
2265 | } | |
2266 | ||
63c1f59d AM |
2267 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
2268 | read-only sections. */ | |
73589c9d CS |
2269 | |
2270 | static bfd_boolean | |
63c1f59d | 2271 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p) |
73589c9d | 2272 | { |
63c1f59d | 2273 | asection *sec; |
73589c9d | 2274 | |
63c1f59d AM |
2275 | if (h->root.type == bfd_link_hash_indirect) |
2276 | return TRUE; | |
73589c9d | 2277 | |
63c1f59d AM |
2278 | sec = readonly_dynrelocs (h); |
2279 | if (sec != NULL) | |
2280 | { | |
2281 | struct bfd_link_info *info = (struct bfd_link_info *) info_p; | |
73589c9d | 2282 | |
63c1f59d AM |
2283 | info->flags |= DF_TEXTREL; |
2284 | info->callbacks->minfo | |
c1c8c1ef | 2285 | (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"), |
63c1f59d | 2286 | sec->owner, h->root.root.string, sec); |
73589c9d | 2287 | |
63c1f59d AM |
2288 | /* Not an error, just cut short the traversal. */ |
2289 | return FALSE; | |
73589c9d CS |
2290 | } |
2291 | return TRUE; | |
2292 | } | |
2293 | ||
2294 | /* Set the sizes of the dynamic sections. */ | |
2295 | ||
2296 | static bfd_boolean | |
2297 | or1k_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
07d6d2b8 | 2298 | struct bfd_link_info *info) |
73589c9d CS |
2299 | { |
2300 | struct elf_or1k_link_hash_table *htab; | |
2301 | bfd *dynobj; | |
2302 | asection *s; | |
2303 | bfd_boolean relocs; | |
2304 | bfd *ibfd; | |
2305 | ||
2306 | htab = or1k_elf_hash_table (info); | |
2307 | if (htab == NULL) | |
2308 | return FALSE; | |
2309 | ||
2310 | dynobj = htab->root.dynobj; | |
2311 | BFD_ASSERT (dynobj != NULL); | |
2312 | ||
2313 | if (htab->root.dynamic_sections_created) | |
2314 | { | |
2315 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 2316 | if (bfd_link_executable (info) && !info->nointerp) |
07d6d2b8 AM |
2317 | { |
2318 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
2319 | BFD_ASSERT (s != NULL); | |
2320 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
2321 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2322 | } | |
73589c9d CS |
2323 | } |
2324 | ||
2325 | /* Set up .got offsets for local syms, and space for local dynamic | |
2326 | relocs. */ | |
c72f2fb2 | 2327 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
73589c9d CS |
2328 | { |
2329 | bfd_signed_vma *local_got; | |
2330 | bfd_signed_vma *end_local_got; | |
2331 | bfd_size_type locsymcount; | |
2332 | Elf_Internal_Shdr *symtab_hdr; | |
2333 | unsigned char *local_tls_type; | |
2334 | asection *srel; | |
2335 | ||
2336 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
07d6d2b8 | 2337 | continue; |
73589c9d CS |
2338 | |
2339 | for (s = ibfd->sections; s != NULL; s = s->next) | |
07d6d2b8 AM |
2340 | { |
2341 | struct elf_dyn_relocs *p; | |
2342 | ||
2343 | for (p = ((struct elf_dyn_relocs *) | |
2344 | elf_section_data (s)->local_dynrel); | |
2345 | p != NULL; | |
2346 | p = p->next) | |
2347 | { | |
2348 | if (! bfd_is_abs_section (p->sec) | |
2349 | && bfd_is_abs_section (p->sec->output_section)) | |
2350 | { | |
2351 | /* Input section has been discarded, either because | |
2352 | it is a copy of a linkonce section or due to | |
2353 | linker script /DISCARD/, so we'll be discarding | |
2354 | the relocs too. */ | |
2355 | } | |
2356 | else if (p->count != 0) | |
2357 | { | |
2358 | srel = elf_section_data (p->sec)->sreloc; | |
2359 | srel->size += p->count * sizeof (Elf32_External_Rela); | |
2360 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
2361 | info->flags |= DF_TEXTREL; | |
2362 | } | |
2363 | } | |
2364 | } | |
73589c9d CS |
2365 | |
2366 | local_got = elf_local_got_refcounts (ibfd); | |
2367 | if (!local_got) | |
07d6d2b8 | 2368 | continue; |
73589c9d CS |
2369 | |
2370 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2371 | locsymcount = symtab_hdr->sh_info; | |
2372 | end_local_got = local_got + locsymcount; | |
ce558b89 AM |
2373 | s = htab->root.sgot; |
2374 | srel = htab->root.srelgot; | |
73589c9d CS |
2375 | local_tls_type = (unsigned char *) elf_or1k_local_tls_type (ibfd); |
2376 | for (; local_got < end_local_got; ++local_got) | |
07d6d2b8 AM |
2377 | { |
2378 | if (*local_got > 0) | |
2379 | { | |
2380 | *local_got = s->size; | |
2381 | ||
2382 | /* TLS GD requires two GOT and two relocs. */ | |
2383 | if (local_tls_type != NULL && *local_tls_type == TLS_GD) | |
2384 | s->size += 8; | |
2385 | else | |
2386 | s->size += 4; | |
2387 | if (bfd_link_pic (info)) | |
2388 | { | |
2389 | if (local_tls_type != NULL && *local_tls_type == TLS_GD) | |
2390 | srel->size += 2 * sizeof (Elf32_External_Rela); | |
2391 | else | |
2392 | srel->size += sizeof (Elf32_External_Rela); | |
2393 | } | |
2394 | } | |
2395 | else | |
2396 | ||
2397 | *local_got = (bfd_vma) -1; | |
2398 | ||
2399 | if (local_tls_type) | |
2400 | ++local_tls_type; | |
2401 | } | |
73589c9d CS |
2402 | } |
2403 | ||
2404 | /* Allocate global sym .plt and .got entries, and space for global | |
2405 | sym dynamic relocs. */ | |
2406 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info); | |
2407 | ||
2408 | /* We now have determined the sizes of the various dynamic sections. | |
2409 | Allocate memory for them. */ | |
2410 | relocs = FALSE; | |
2411 | for (s = dynobj->sections; s != NULL; s = s->next) | |
2412 | { | |
2413 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
07d6d2b8 | 2414 | continue; |
73589c9d | 2415 | |
ce558b89 | 2416 | if (s == htab->root.splt |
07d6d2b8 AM |
2417 | || s == htab->root.sgot |
2418 | || s == htab->root.sgotplt | |
5474d94f AM |
2419 | || s == htab->root.sdynbss |
2420 | || s == htab->root.sdynrelro) | |
07d6d2b8 AM |
2421 | { |
2422 | /* Strip this section if we don't need it; see the | |
2423 | comment below. */ | |
2424 | } | |
73589c9d | 2425 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) |
07d6d2b8 AM |
2426 | { |
2427 | if (s->size != 0 && s != htab->root.srelplt) | |
2428 | relocs = TRUE; | |
2429 | ||
2430 | /* We use the reloc_count field as a counter if we need | |
2431 | to copy relocs into the output file. */ | |
2432 | s->reloc_count = 0; | |
2433 | } | |
73589c9d | 2434 | else |
07d6d2b8 AM |
2435 | /* It's not one of our sections, so don't allocate space. */ |
2436 | continue; | |
73589c9d CS |
2437 | |
2438 | if (s->size == 0) | |
07d6d2b8 AM |
2439 | { |
2440 | /* If we don't need this section, strip it from the | |
2441 | output file. This is mostly to handle .rela.bss and | |
2442 | .rela.plt. We must create both sections in | |
2443 | create_dynamic_sections, because they must be created | |
2444 | before the linker maps input sections to output | |
2445 | sections. The linker does that before | |
2446 | adjust_dynamic_symbol is called, and it is that | |
2447 | function which decides whether anything needs to go | |
2448 | into these sections. */ | |
2449 | s->flags |= SEC_EXCLUDE; | |
2450 | continue; | |
2451 | } | |
73589c9d CS |
2452 | |
2453 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
07d6d2b8 | 2454 | continue; |
73589c9d CS |
2455 | |
2456 | /* Allocate memory for the section contents. We use bfd_zalloc | |
07d6d2b8 AM |
2457 | here in case unused entries are not reclaimed before the |
2458 | section's contents are written out. This should not happen, | |
2459 | but this way if it does, we get a R_OR1K_NONE reloc instead | |
2460 | of garbage. */ | |
73589c9d CS |
2461 | s->contents = bfd_zalloc (dynobj, s->size); |
2462 | ||
2463 | if (s->contents == NULL) | |
07d6d2b8 | 2464 | return FALSE; |
73589c9d CS |
2465 | } |
2466 | ||
2467 | if (htab->root.dynamic_sections_created) | |
2468 | { | |
2469 | /* Add some entries to the .dynamic section. We fill in the | |
07d6d2b8 AM |
2470 | values later, in or1k_elf_finish_dynamic_sections, but we |
2471 | must add the entries now so that we get the correct size for | |
2472 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2473 | dynamic linker and used by the debugger. */ | |
73589c9d CS |
2474 | #define add_dynamic_entry(TAG, VAL) \ |
2475 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
2476 | ||
0e1862bb | 2477 | if (bfd_link_executable (info)) |
73589c9d | 2478 | { |
07d6d2b8 AM |
2479 | if (! add_dynamic_entry (DT_DEBUG, 0)) |
2480 | return FALSE; | |
73589c9d CS |
2481 | } |
2482 | ||
ce558b89 | 2483 | if (htab->root.splt->size != 0) |
73589c9d | 2484 | { |
07d6d2b8 AM |
2485 | if (! add_dynamic_entry (DT_PLTGOT, 0) |
2486 | || ! add_dynamic_entry (DT_PLTRELSZ, 0) | |
2487 | || ! add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2488 | || ! add_dynamic_entry (DT_JMPREL, 0)) | |
2489 | return FALSE; | |
2490 | } | |
73589c9d CS |
2491 | |
2492 | if (relocs) | |
2493 | { | |
07d6d2b8 AM |
2494 | if (! add_dynamic_entry (DT_RELA, 0) |
2495 | || ! add_dynamic_entry (DT_RELASZ, 0) | |
2496 | || ! add_dynamic_entry (DT_RELAENT, | |
2497 | sizeof (Elf32_External_Rela))) | |
2498 | return FALSE; | |
2499 | ||
2500 | /* If any dynamic relocs apply to a read-only section, | |
2501 | then we need a DT_TEXTREL entry. */ | |
2502 | if ((info->flags & DF_TEXTREL) == 0) | |
2503 | elf_link_hash_traverse (&htab->root, maybe_set_textrel, info); | |
2504 | ||
2505 | if ((info->flags & DF_TEXTREL) != 0) | |
2506 | { | |
2507 | if (! add_dynamic_entry (DT_TEXTREL, 0)) | |
2508 | return FALSE; | |
2509 | } | |
73589c9d CS |
2510 | } |
2511 | } | |
2512 | ||
2513 | #undef add_dynamic_entry | |
2514 | return TRUE; | |
2515 | } | |
2516 | ||
73589c9d CS |
2517 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
2518 | ||
2519 | static void | |
2520 | or1k_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
07d6d2b8 AM |
2521 | struct elf_link_hash_entry *dir, |
2522 | struct elf_link_hash_entry *ind) | |
73589c9d CS |
2523 | { |
2524 | struct elf_or1k_link_hash_entry * edir; | |
2525 | struct elf_or1k_link_hash_entry * eind; | |
2526 | ||
2527 | edir = (struct elf_or1k_link_hash_entry *) dir; | |
2528 | eind = (struct elf_or1k_link_hash_entry *) ind; | |
2529 | ||
2530 | if (eind->dyn_relocs != NULL) | |
2531 | { | |
2532 | if (edir->dyn_relocs != NULL) | |
07d6d2b8 AM |
2533 | { |
2534 | struct elf_dyn_relocs **pp; | |
2535 | struct elf_dyn_relocs *p; | |
2536 | ||
2537 | /* Add reloc counts against the indirect sym to the direct sym | |
2538 | list. Merge any entries against the same section. */ | |
2539 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL;) | |
2540 | { | |
2541 | struct elf_dyn_relocs *q; | |
2542 | ||
2543 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
2544 | if (q->sec == p->sec) | |
2545 | { | |
2546 | q->pc_count += p->pc_count; | |
2547 | q->count += p->count; | |
2548 | *pp = p->next; | |
2549 | break; | |
2550 | } | |
2551 | if (q == NULL) | |
2552 | pp = &p->next; | |
2553 | } | |
2554 | *pp = edir->dyn_relocs; | |
2555 | } | |
73589c9d CS |
2556 | |
2557 | edir->dyn_relocs = eind->dyn_relocs; | |
2558 | eind->dyn_relocs = NULL; | |
2559 | } | |
2560 | ||
2561 | if (ind->root.type == bfd_link_hash_indirect) | |
2562 | { | |
2563 | if (dir->got.refcount <= 0) | |
07d6d2b8 AM |
2564 | { |
2565 | edir->tls_type = eind->tls_type; | |
2566 | eind->tls_type = TLS_UNKNOWN; | |
2567 | } | |
73589c9d CS |
2568 | } |
2569 | ||
2570 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
2571 | } | |
2572 | ||
2573 | /* Set the right machine number. */ | |
2574 | ||
2575 | static bfd_boolean | |
2576 | or1k_elf_object_p (bfd *abfd) | |
2577 | { | |
2578 | unsigned long mach = bfd_mach_or1k; | |
2579 | ||
2580 | if (elf_elfheader (abfd)->e_flags & EF_OR1K_NODELAY) | |
2581 | mach = bfd_mach_or1knd; | |
2582 | ||
2583 | return bfd_default_set_arch_mach (abfd, bfd_arch_or1k, mach); | |
2584 | } | |
2585 | ||
2586 | /* Store the machine number in the flags field. */ | |
2587 | ||
2588 | static void | |
2589 | or1k_elf_final_write_processing (bfd *abfd, | |
2590 | bfd_boolean linker ATTRIBUTE_UNUSED) | |
2591 | { | |
2592 | switch (bfd_get_mach (abfd)) | |
2593 | { | |
2594 | default: | |
2595 | case bfd_mach_or1k: | |
2596 | break; | |
2597 | case bfd_mach_or1knd: | |
2598 | elf_elfheader (abfd)->e_flags |= EF_OR1K_NODELAY; | |
2599 | break; | |
2600 | } | |
2601 | } | |
2602 | ||
2603 | static bfd_boolean | |
2604 | or1k_elf_set_private_flags (bfd *abfd, flagword flags) | |
2605 | { | |
2606 | BFD_ASSERT (!elf_flags_init (abfd) | |
07d6d2b8 | 2607 | || elf_elfheader (abfd)->e_flags == flags); |
73589c9d CS |
2608 | |
2609 | elf_elfheader (abfd)->e_flags = flags; | |
2610 | elf_flags_init (abfd) = TRUE; | |
2611 | return TRUE; | |
2612 | } | |
2613 | ||
2614 | /* Make sure all input files are consistent with respect to | |
2615 | EF_OR1K_NODELAY flag setting. */ | |
2616 | ||
2617 | static bfd_boolean | |
50e03d47 | 2618 | elf32_or1k_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
73589c9d | 2619 | { |
50e03d47 | 2620 | bfd *obfd = info->output_bfd; |
73589c9d CS |
2621 | flagword out_flags; |
2622 | flagword in_flags; | |
2623 | ||
2624 | in_flags = elf_elfheader (ibfd)->e_flags; | |
2625 | out_flags = elf_elfheader (obfd)->e_flags; | |
2626 | ||
2627 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2628 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
2629 | return TRUE; | |
2630 | ||
2631 | if (!elf_flags_init (obfd)) | |
2632 | { | |
2633 | elf_flags_init (obfd) = TRUE; | |
2634 | elf_elfheader (obfd)->e_flags = in_flags; | |
2635 | ||
2636 | return TRUE; | |
2637 | } | |
2638 | ||
2639 | if (in_flags == out_flags) | |
2640 | return TRUE; | |
2641 | ||
2642 | if ((in_flags & EF_OR1K_NODELAY) != (out_flags & EF_OR1K_NODELAY)) | |
2643 | { | |
4eca0228 | 2644 | _bfd_error_handler |
38f14ab8 AM |
2645 | (_("%pB: %s flag mismatch with previous modules"), |
2646 | ibfd, "EF_OR1K_NODELAY"); | |
73589c9d CS |
2647 | |
2648 | bfd_set_error (bfd_error_bad_value); | |
2649 | return FALSE; | |
2650 | } | |
2651 | ||
2652 | return TRUE; | |
2653 | ||
2654 | } | |
2655 | ||
07d6d2b8 AM |
2656 | #define ELF_ARCH bfd_arch_or1k |
2657 | #define ELF_MACHINE_CODE EM_OR1K | |
2658 | #define ELF_TARGET_ID OR1K_ELF_DATA | |
2659 | #define ELF_MAXPAGESIZE 0x2000 | |
73589c9d | 2660 | |
07d6d2b8 AM |
2661 | #define TARGET_BIG_SYM or1k_elf32_vec |
2662 | #define TARGET_BIG_NAME "elf32-or1k" | |
73589c9d | 2663 | |
07d6d2b8 AM |
2664 | #define elf_info_to_howto_rel NULL |
2665 | #define elf_info_to_howto or1k_info_to_howto_rela | |
2666 | #define elf_backend_relocate_section or1k_elf_relocate_section | |
2667 | #define elf_backend_gc_mark_hook or1k_elf_gc_mark_hook | |
2668 | #define elf_backend_check_relocs or1k_elf_check_relocs | |
2669 | #define elf_backend_reloc_type_class or1k_elf_reloc_type_class | |
2670 | #define elf_backend_can_gc_sections 1 | |
2671 | #define elf_backend_rela_normal 1 | |
73589c9d | 2672 | |
07d6d2b8 | 2673 | #define bfd_elf32_mkobject elf_or1k_mkobject |
73589c9d CS |
2674 | |
2675 | #define bfd_elf32_bfd_merge_private_bfd_data elf32_or1k_merge_private_bfd_data | |
2676 | #define bfd_elf32_bfd_set_private_flags or1k_elf_set_private_flags | |
2677 | #define bfd_elf32_bfd_reloc_type_lookup or1k_reloc_type_lookup | |
2678 | #define bfd_elf32_bfd_reloc_name_lookup or1k_reloc_name_lookup | |
2679 | ||
07d6d2b8 | 2680 | #define elf_backend_object_p or1k_elf_object_p |
73589c9d | 2681 | #define elf_backend_final_write_processing or1k_elf_final_write_processing |
07d6d2b8 | 2682 | #define elf_backend_can_refcount 1 |
73589c9d | 2683 | |
07d6d2b8 AM |
2684 | #define elf_backend_plt_readonly 1 |
2685 | #define elf_backend_want_got_plt 1 | |
2686 | #define elf_backend_want_plt_sym 0 | |
2687 | #define elf_backend_got_header_size 12 | |
64f52338 | 2688 | #define elf_backend_dtrel_excludes_plt 1 |
5474d94f | 2689 | #define elf_backend_want_dynrelro 1 |
64f52338 | 2690 | |
07d6d2b8 AM |
2691 | #define bfd_elf32_bfd_link_hash_table_create or1k_elf_link_hash_table_create |
2692 | #define elf_backend_copy_indirect_symbol or1k_elf_copy_indirect_symbol | |
2693 | #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections | |
2694 | #define elf_backend_finish_dynamic_sections or1k_elf_finish_dynamic_sections | |
2695 | #define elf_backend_size_dynamic_sections or1k_elf_size_dynamic_sections | |
2696 | #define elf_backend_adjust_dynamic_symbol or1k_elf_adjust_dynamic_symbol | |
2697 | #define elf_backend_finish_dynamic_symbol or1k_elf_finish_dynamic_symbol | |
73589c9d CS |
2698 | |
2699 | #include "elf32-target.h" |