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7ba29e2a NC |
1 | /* Xilinx MicroBlaze-specific support for 32-bit ELF |
2 | ||
b90efa5b | 3 | Copyright (C) 2009-2015 Free Software Foundation, Inc. |
7ba29e2a NC |
4 | |
5 | This file is part of BFD, the Binary File Descriptor library. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the | |
19 | Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, | |
20 | Boston, MA 02110-1301, USA. */ | |
21 | ||
22 | ||
23 | int dbg = 0; | |
24 | ||
7ba29e2a | 25 | #include "sysdep.h" |
691bf19c | 26 | #include "bfd.h" |
7ba29e2a NC |
27 | #include "bfdlink.h" |
28 | #include "libbfd.h" | |
29 | #include "elf-bfd.h" | |
30 | #include "elf/microblaze.h" | |
31 | #include <assert.h> | |
32 | ||
33 | #define USE_RELA /* Only USE_REL is actually significant, but this is | |
34 | here are a reminder... */ | |
35 | #define INST_WORD_SIZE 4 | |
36 | ||
37 | static int ro_small_data_pointer = 0; | |
38 | static int rw_small_data_pointer = 0; | |
39 | ||
40 | static reloc_howto_type * microblaze_elf_howto_table [(int) R_MICROBLAZE_max]; | |
41 | ||
42 | static reloc_howto_type microblaze_elf_howto_raw[] = | |
43 | { | |
44 | /* This reloc does nothing. */ | |
45 | HOWTO (R_MICROBLAZE_NONE, /* Type. */ | |
46 | 0, /* Rightshift. */ | |
6346d5ca AM |
47 | 3, /* Size (0 = byte, 1 = short, 2 = long). */ |
48 | 0, /* Bitsize. */ | |
7ba29e2a NC |
49 | FALSE, /* PC_relative. */ |
50 | 0, /* Bitpos. */ | |
6346d5ca | 51 | complain_overflow_dont, /* Complain on overflow. */ |
7ba29e2a NC |
52 | NULL, /* Special Function. */ |
53 | "R_MICROBLAZE_NONE", /* Name. */ | |
54 | FALSE, /* Partial Inplace. */ | |
55 | 0, /* Source Mask. */ | |
56 | 0, /* Dest Mask. */ | |
57 | FALSE), /* PC relative offset? */ | |
58 | ||
59 | /* A standard 32 bit relocation. */ | |
60 | HOWTO (R_MICROBLAZE_32, /* Type. */ | |
61 | 0, /* Rightshift. */ | |
62 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
63 | 32, /* Bitsize. */ | |
64 | FALSE, /* PC_relative. */ | |
65 | 0, /* Bitpos. */ | |
66 | complain_overflow_bitfield, /* Complain on overflow. */ | |
67 | bfd_elf_generic_reloc,/* Special Function. */ | |
68 | "R_MICROBLAZE_32", /* Name. */ | |
69 | FALSE, /* Partial Inplace. */ | |
70 | 0, /* Source Mask. */ | |
71 | 0xffffffff, /* Dest Mask. */ | |
72 | FALSE), /* PC relative offset? */ | |
73 | ||
74 | /* A standard PCREL 32 bit relocation. */ | |
75 | HOWTO (R_MICROBLAZE_32_PCREL,/* Type. */ | |
76 | 0, /* Rightshift. */ | |
77 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
78 | 32, /* Bitsize. */ | |
79 | TRUE, /* PC_relative. */ | |
80 | 0, /* Bitpos. */ | |
81 | complain_overflow_bitfield, /* Complain on overflow. */ | |
82 | bfd_elf_generic_reloc,/* Special Function. */ | |
83 | "R_MICROBLAZE_32_PCREL", /* Name. */ | |
84 | TRUE, /* Partial Inplace. */ | |
85 | 0, /* Source Mask. */ | |
86 | 0xffffffff, /* Dest Mask. */ | |
87 | TRUE), /* PC relative offset? */ | |
88 | ||
89 | /* A 64 bit PCREL relocation. Table-entry not really used. */ | |
90 | HOWTO (R_MICROBLAZE_64_PCREL,/* Type. */ | |
91 | 0, /* Rightshift. */ | |
92 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
93 | 16, /* Bitsize. */ | |
94 | TRUE, /* PC_relative. */ | |
95 | 0, /* Bitpos. */ | |
96 | complain_overflow_dont, /* Complain on overflow. */ | |
97 | bfd_elf_generic_reloc,/* Special Function. */ | |
98 | "R_MICROBLAZE_64_PCREL", /* Name. */ | |
99 | FALSE, /* Partial Inplace. */ | |
100 | 0, /* Source Mask. */ | |
101 | 0x0000ffff, /* Dest Mask. */ | |
102 | TRUE), /* PC relative offset? */ | |
103 | ||
104 | /* The low half of a PCREL 32 bit relocation. */ | |
105 | HOWTO (R_MICROBLAZE_32_PCREL_LO, /* Type. */ | |
106 | 0, /* Rightshift. */ | |
107 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
108 | 16, /* Bitsize. */ | |
109 | TRUE, /* PC_relative. */ | |
110 | 0, /* Bitpos. */ | |
111 | complain_overflow_signed, /* Complain on overflow. */ | |
112 | bfd_elf_generic_reloc, /* Special Function. */ | |
113 | "R_MICROBLAZE_32_PCREL_LO", /* Name. */ | |
114 | FALSE, /* Partial Inplace. */ | |
115 | 0, /* Source Mask. */ | |
116 | 0x0000ffff, /* Dest Mask. */ | |
117 | TRUE), /* PC relative offset? */ | |
118 | ||
119 | /* A 64 bit relocation. Table entry not really used. */ | |
120 | HOWTO (R_MICROBLAZE_64, /* Type. */ | |
121 | 0, /* Rightshift. */ | |
122 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
123 | 16, /* Bitsize. */ | |
124 | FALSE, /* PC_relative. */ | |
125 | 0, /* Bitpos. */ | |
126 | complain_overflow_dont, /* Complain on overflow. */ | |
127 | bfd_elf_generic_reloc,/* Special Function. */ | |
128 | "R_MICROBLAZE_64", /* Name. */ | |
129 | FALSE, /* Partial Inplace. */ | |
130 | 0, /* Source Mask. */ | |
131 | 0x0000ffff, /* Dest Mask. */ | |
132 | FALSE), /* PC relative offset? */ | |
133 | ||
134 | /* The low half of a 32 bit relocation. */ | |
135 | HOWTO (R_MICROBLAZE_32_LO, /* Type. */ | |
136 | 0, /* Rightshift. */ | |
137 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
138 | 16, /* Bitsize. */ | |
139 | FALSE, /* PC_relative. */ | |
140 | 0, /* Bitpos. */ | |
141 | complain_overflow_signed, /* Complain on overflow. */ | |
142 | bfd_elf_generic_reloc,/* Special Function. */ | |
143 | "R_MICROBLAZE_32_LO", /* Name. */ | |
144 | FALSE, /* Partial Inplace. */ | |
145 | 0, /* Source Mask. */ | |
146 | 0x0000ffff, /* Dest Mask. */ | |
147 | FALSE), /* PC relative offset? */ | |
148 | ||
149 | /* Read-only small data section relocation. */ | |
150 | HOWTO (R_MICROBLAZE_SRO32, /* Type. */ | |
151 | 0, /* Rightshift. */ | |
152 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
153 | 16, /* Bitsize. */ | |
154 | FALSE, /* PC_relative. */ | |
155 | 0, /* Bitpos. */ | |
156 | complain_overflow_bitfield, /* Complain on overflow. */ | |
157 | bfd_elf_generic_reloc,/* Special Function. */ | |
158 | "R_MICROBLAZE_SRO32", /* Name. */ | |
159 | FALSE, /* Partial Inplace. */ | |
160 | 0, /* Source Mask. */ | |
161 | 0x0000ffff, /* Dest Mask. */ | |
162 | FALSE), /* PC relative offset? */ | |
163 | ||
164 | /* Read-write small data area relocation. */ | |
165 | HOWTO (R_MICROBLAZE_SRW32, /* Type. */ | |
166 | 0, /* Rightshift. */ | |
167 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
168 | 16, /* Bitsize. */ | |
169 | FALSE, /* PC_relative. */ | |
170 | 0, /* Bitpos. */ | |
171 | complain_overflow_bitfield, /* Complain on overflow. */ | |
172 | bfd_elf_generic_reloc,/* Special Function. */ | |
173 | "R_MICROBLAZE_SRW32", /* Name. */ | |
174 | FALSE, /* Partial Inplace. */ | |
175 | 0, /* Source Mask. */ | |
176 | 0x0000ffff, /* Dest Mask. */ | |
177 | FALSE), /* PC relative offset? */ | |
178 | ||
179 | /* This reloc does nothing. Used for relaxation. */ | |
180 | HOWTO (R_MICROBLAZE_64_NONE, /* Type. */ | |
181 | 0, /* Rightshift. */ | |
6346d5ca AM |
182 | 3, /* Size (0 = byte, 1 = short, 2 = long). */ |
183 | 0, /* Bitsize. */ | |
7ba29e2a NC |
184 | TRUE, /* PC_relative. */ |
185 | 0, /* Bitpos. */ | |
6346d5ca | 186 | complain_overflow_dont, /* Complain on overflow. */ |
7ba29e2a NC |
187 | NULL, /* Special Function. */ |
188 | "R_MICROBLAZE_64_NONE",/* Name. */ | |
189 | FALSE, /* Partial Inplace. */ | |
190 | 0, /* Source Mask. */ | |
191 | 0, /* Dest Mask. */ | |
192 | FALSE), /* PC relative offset? */ | |
193 | ||
194 | /* Symbol Op Symbol relocation. */ | |
195 | HOWTO (R_MICROBLAZE_32_SYM_OP_SYM, /* Type. */ | |
196 | 0, /* Rightshift. */ | |
197 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
198 | 32, /* Bitsize. */ | |
199 | FALSE, /* PC_relative. */ | |
200 | 0, /* Bitpos. */ | |
201 | complain_overflow_bitfield, /* Complain on overflow. */ | |
202 | bfd_elf_generic_reloc,/* Special Function. */ | |
203 | "R_MICROBLAZE_32_SYM_OP_SYM", /* Name. */ | |
204 | FALSE, /* Partial Inplace. */ | |
205 | 0, /* Source Mask. */ | |
206 | 0xffffffff, /* Dest Mask. */ | |
207 | FALSE), /* PC relative offset? */ | |
208 | ||
209 | /* GNU extension to record C++ vtable hierarchy. */ | |
210 | HOWTO (R_MICROBLAZE_GNU_VTINHERIT, /* Type. */ | |
211 | 0, /* Rightshift. */ | |
212 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
213 | 0, /* Bitsize. */ | |
214 | FALSE, /* PC_relative. */ | |
215 | 0, /* Bitpos. */ | |
216 | complain_overflow_dont,/* Complain on overflow. */ | |
217 | NULL, /* Special Function. */ | |
218 | "R_MICROBLAZE_GNU_VTINHERIT", /* Name. */ | |
219 | FALSE, /* Partial Inplace. */ | |
220 | 0, /* Source Mask. */ | |
221 | 0, /* Dest Mask. */ | |
222 | FALSE), /* PC relative offset? */ | |
223 | ||
224 | /* GNU extension to record C++ vtable member usage. */ | |
225 | HOWTO (R_MICROBLAZE_GNU_VTENTRY, /* Type. */ | |
226 | 0, /* Rightshift. */ | |
227 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
228 | 0, /* Bitsize. */ | |
229 | FALSE, /* PC_relative. */ | |
230 | 0, /* Bitpos. */ | |
231 | complain_overflow_dont,/* Complain on overflow. */ | |
232 | _bfd_elf_rel_vtable_reloc_fn, /* Special Function. */ | |
233 | "R_MICROBLAZE_GNU_VTENTRY", /* Name. */ | |
234 | FALSE, /* Partial Inplace. */ | |
235 | 0, /* Source Mask. */ | |
236 | 0, /* Dest Mask. */ | |
237 | FALSE), /* PC relative offset? */ | |
238 | ||
239 | /* A 64 bit GOTPC relocation. Table-entry not really used. */ | |
240 | HOWTO (R_MICROBLAZE_GOTPC_64, /* Type. */ | |
241 | 0, /* Rightshift. */ | |
242 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
243 | 16, /* Bitsize. */ | |
244 | TRUE, /* PC_relative. */ | |
245 | 0, /* Bitpos. */ | |
246 | complain_overflow_dont, /* Complain on overflow. */ | |
247 | bfd_elf_generic_reloc, /* Special Function. */ | |
248 | "R_MICROBLAZE_GOTPC_64", /* Name. */ | |
249 | FALSE, /* Partial Inplace. */ | |
250 | 0, /* Source Mask. */ | |
251 | 0x0000ffff, /* Dest Mask. */ | |
252 | TRUE), /* PC relative offset? */ | |
253 | ||
254 | /* A 64 bit GOT relocation. Table-entry not really used. */ | |
255 | HOWTO (R_MICROBLAZE_GOT_64, /* Type. */ | |
256 | 0, /* Rightshift. */ | |
257 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
258 | 16, /* Bitsize. */ | |
259 | FALSE, /* PC_relative. */ | |
260 | 0, /* Bitpos. */ | |
261 | complain_overflow_dont, /* Complain on overflow. */ | |
262 | bfd_elf_generic_reloc,/* Special Function. */ | |
263 | "R_MICROBLAZE_GOT_64",/* Name. */ | |
264 | FALSE, /* Partial Inplace. */ | |
265 | 0, /* Source Mask. */ | |
266 | 0x0000ffff, /* Dest Mask. */ | |
267 | FALSE), /* PC relative offset? */ | |
268 | ||
269 | /* A 64 bit PLT relocation. Table-entry not really used. */ | |
270 | HOWTO (R_MICROBLAZE_PLT_64, /* Type. */ | |
271 | 0, /* Rightshift. */ | |
272 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
273 | 16, /* Bitsize. */ | |
274 | TRUE, /* PC_relative. */ | |
275 | 0, /* Bitpos. */ | |
276 | complain_overflow_dont, /* Complain on overflow. */ | |
277 | bfd_elf_generic_reloc,/* Special Function. */ | |
278 | "R_MICROBLAZE_PLT_64",/* Name. */ | |
279 | FALSE, /* Partial Inplace. */ | |
280 | 0, /* Source Mask. */ | |
281 | 0x0000ffff, /* Dest Mask. */ | |
282 | TRUE), /* PC relative offset? */ | |
283 | ||
284 | /* Table-entry not really used. */ | |
285 | HOWTO (R_MICROBLAZE_REL, /* Type. */ | |
286 | 0, /* Rightshift. */ | |
287 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
288 | 16, /* Bitsize. */ | |
289 | TRUE, /* PC_relative. */ | |
290 | 0, /* Bitpos. */ | |
291 | complain_overflow_dont, /* Complain on overflow. */ | |
292 | bfd_elf_generic_reloc,/* Special Function. */ | |
293 | "R_MICROBLAZE_REL", /* Name. */ | |
294 | FALSE, /* Partial Inplace. */ | |
295 | 0, /* Source Mask. */ | |
296 | 0x0000ffff, /* Dest Mask. */ | |
297 | TRUE), /* PC relative offset? */ | |
298 | ||
299 | /* Table-entry not really used. */ | |
300 | HOWTO (R_MICROBLAZE_JUMP_SLOT,/* Type. */ | |
301 | 0, /* Rightshift. */ | |
302 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
303 | 16, /* Bitsize. */ | |
304 | TRUE, /* PC_relative. */ | |
305 | 0, /* Bitpos. */ | |
306 | complain_overflow_dont, /* Complain on overflow. */ | |
307 | bfd_elf_generic_reloc,/* Special Function. */ | |
308 | "R_MICROBLAZE_JUMP_SLOT", /* Name. */ | |
309 | FALSE, /* Partial Inplace. */ | |
310 | 0, /* Source Mask. */ | |
311 | 0x0000ffff, /* Dest Mask. */ | |
312 | TRUE), /* PC relative offset? */ | |
313 | ||
314 | /* Table-entry not really used. */ | |
315 | HOWTO (R_MICROBLAZE_GLOB_DAT,/* Type. */ | |
316 | 0, /* Rightshift. */ | |
317 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
318 | 16, /* Bitsize. */ | |
319 | TRUE, /* PC_relative. */ | |
320 | 0, /* Bitpos. */ | |
321 | complain_overflow_dont, /* Complain on overflow. */ | |
322 | bfd_elf_generic_reloc,/* Special Function. */ | |
323 | "R_MICROBLAZE_GLOB_DAT", /* Name. */ | |
324 | FALSE, /* Partial Inplace. */ | |
325 | 0, /* Source Mask. */ | |
326 | 0x0000ffff, /* Dest Mask. */ | |
327 | TRUE), /* PC relative offset? */ | |
328 | ||
329 | /* A 64 bit GOT relative relocation. Table-entry not really used. */ | |
330 | HOWTO (R_MICROBLAZE_GOTOFF_64, /* Type. */ | |
331 | 0, /* Rightshift. */ | |
332 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
333 | 16, /* Bitsize. */ | |
334 | FALSE, /* PC_relative. */ | |
335 | 0, /* Bitpos. */ | |
336 | complain_overflow_dont, /* Complain on overflow. */ | |
337 | bfd_elf_generic_reloc,/* Special Function. */ | |
338 | "R_MICROBLAZE_GOTOFF_64", /* Name. */ | |
339 | FALSE, /* Partial Inplace. */ | |
340 | 0, /* Source Mask. */ | |
341 | 0x0000ffff, /* Dest Mask. */ | |
342 | FALSE), /* PC relative offset? */ | |
343 | ||
344 | /* A 32 bit GOT relative relocation. Table-entry not really used. */ | |
345 | HOWTO (R_MICROBLAZE_GOTOFF_32, /* Type. */ | |
346 | 0, /* Rightshift. */ | |
347 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
348 | 16, /* Bitsize. */ | |
349 | FALSE, /* PC_relative. */ | |
350 | 0, /* Bitpos. */ | |
351 | complain_overflow_dont, /* Complain on overflow. */ | |
352 | bfd_elf_generic_reloc, /* Special Function. */ | |
353 | "R_MICROBLAZE_GOTOFF_32", /* Name. */ | |
354 | FALSE, /* Partial Inplace. */ | |
355 | 0, /* Source Mask. */ | |
356 | 0x0000ffff, /* Dest Mask. */ | |
357 | FALSE), /* PC relative offset? */ | |
358 | ||
359 | /* COPY relocation. Table-entry not really used. */ | |
360 | HOWTO (R_MICROBLAZE_COPY, /* Type. */ | |
361 | 0, /* Rightshift. */ | |
362 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
363 | 16, /* Bitsize. */ | |
364 | FALSE, /* PC_relative. */ | |
365 | 0, /* Bitpos. */ | |
366 | complain_overflow_dont, /* Complain on overflow. */ | |
367 | bfd_elf_generic_reloc,/* Special Function. */ | |
368 | "R_MICROBLAZE_COPY", /* Name. */ | |
369 | FALSE, /* Partial Inplace. */ | |
370 | 0, /* Source Mask. */ | |
371 | 0x0000ffff, /* Dest Mask. */ | |
372 | FALSE), /* PC relative offset? */ | |
69b06cc8 ME |
373 | |
374 | /* Marker relocs for TLS. */ | |
375 | HOWTO (R_MICROBLAZE_TLS, | |
376 | 0, /* rightshift */ | |
377 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
378 | 32, /* bitsize */ | |
379 | FALSE, /* pc_relative */ | |
380 | 0, /* bitpos */ | |
381 | complain_overflow_dont, /* complain_on_overflow */ | |
382 | bfd_elf_generic_reloc, /* special_function */ | |
383 | "R_MICROBLAZE_TLS", /* name */ | |
384 | FALSE, /* partial_inplace */ | |
385 | 0, /* src_mask */ | |
386 | 0x0000ffff, /* dst_mask */ | |
387 | FALSE), /* pcrel_offset */ | |
388 | ||
389 | HOWTO (R_MICROBLAZE_TLSGD, | |
390 | 0, /* rightshift */ | |
391 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
392 | 32, /* bitsize */ | |
393 | FALSE, /* pc_relative */ | |
394 | 0, /* bitpos */ | |
395 | complain_overflow_dont, /* complain_on_overflow */ | |
396 | bfd_elf_generic_reloc, /* special_function */ | |
397 | "R_MICROBLAZE_TLSGD", /* name */ | |
398 | FALSE, /* partial_inplace */ | |
399 | 0, /* src_mask */ | |
400 | 0x0000ffff, /* dst_mask */ | |
401 | FALSE), /* pcrel_offset */ | |
402 | ||
403 | HOWTO (R_MICROBLAZE_TLSLD, | |
404 | 0, /* rightshift */ | |
405 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
406 | 32, /* bitsize */ | |
407 | FALSE, /* pc_relative */ | |
408 | 0, /* bitpos */ | |
409 | complain_overflow_dont, /* complain_on_overflow */ | |
410 | bfd_elf_generic_reloc, /* special_function */ | |
411 | "R_MICROBLAZE_TLSLD", /* name */ | |
412 | FALSE, /* partial_inplace */ | |
413 | 0, /* src_mask */ | |
414 | 0x0000ffff, /* dst_mask */ | |
415 | FALSE), /* pcrel_offset */ | |
416 | ||
417 | /* Computes the load module index of the load module that contains the | |
418 | definition of its TLS sym. */ | |
419 | HOWTO (R_MICROBLAZE_TLSDTPMOD32, | |
420 | 0, /* rightshift */ | |
421 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
422 | 32, /* bitsize */ | |
423 | FALSE, /* pc_relative */ | |
424 | 0, /* bitpos */ | |
425 | complain_overflow_dont, /* complain_on_overflow */ | |
426 | bfd_elf_generic_reloc, /* special_function */ | |
427 | "R_MICROBLAZE_TLSDTPMOD32", /* name */ | |
428 | FALSE, /* partial_inplace */ | |
429 | 0, /* src_mask */ | |
430 | 0x0000ffff, /* dst_mask */ | |
431 | FALSE), /* pcrel_offset */ | |
432 | ||
433 | /* Computes a dtv-relative displacement, the difference between the value | |
434 | of sym+add and the base address of the thread-local storage block that | |
435 | contains the definition of sym, minus 0x8000. Used for initializing GOT */ | |
436 | HOWTO (R_MICROBLAZE_TLSDTPREL32, | |
437 | 0, /* rightshift */ | |
438 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
439 | 32, /* bitsize */ | |
440 | FALSE, /* pc_relative */ | |
441 | 0, /* bitpos */ | |
442 | complain_overflow_dont, /* complain_on_overflow */ | |
443 | bfd_elf_generic_reloc, /* special_function */ | |
444 | "R_MICROBLAZE_TLSDTPREL32", /* name */ | |
445 | FALSE, /* partial_inplace */ | |
446 | 0, /* src_mask */ | |
447 | 0x0000ffff, /* dst_mask */ | |
448 | FALSE), /* pcrel_offset */ | |
449 | ||
450 | /* Computes a dtv-relative displacement, the difference between the value | |
451 | of sym+add and the base address of the thread-local storage block that | |
452 | contains the definition of sym, minus 0x8000. */ | |
453 | HOWTO (R_MICROBLAZE_TLSDTPREL64, | |
454 | 0, /* rightshift */ | |
455 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
456 | 32, /* bitsize */ | |
457 | FALSE, /* pc_relative */ | |
458 | 0, /* bitpos */ | |
459 | complain_overflow_dont, /* complain_on_overflow */ | |
460 | bfd_elf_generic_reloc, /* special_function */ | |
461 | "R_MICROBLAZE_TLSDTPREL64", /* name */ | |
462 | FALSE, /* partial_inplace */ | |
463 | 0, /* src_mask */ | |
464 | 0x0000ffff, /* dst_mask */ | |
465 | FALSE), /* pcrel_offset */ | |
466 | ||
467 | /* Computes a tp-relative displacement, the difference between the value of | |
468 | sym+add and the value of the thread pointer (r13). */ | |
469 | HOWTO (R_MICROBLAZE_TLSGOTTPREL32, | |
470 | 0, /* rightshift */ | |
471 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
472 | 32, /* bitsize */ | |
473 | FALSE, /* pc_relative */ | |
474 | 0, /* bitpos */ | |
475 | complain_overflow_dont, /* complain_on_overflow */ | |
476 | bfd_elf_generic_reloc, /* special_function */ | |
477 | "R_MICROBLAZE_TLSGOTTPREL32", /* name */ | |
478 | FALSE, /* partial_inplace */ | |
479 | 0, /* src_mask */ | |
480 | 0x0000ffff, /* dst_mask */ | |
481 | FALSE), /* pcrel_offset */ | |
482 | ||
483 | /* Computes a tp-relative displacement, the difference between the value of | |
484 | sym+add and the value of the thread pointer (r13). */ | |
485 | HOWTO (R_MICROBLAZE_TLSTPREL32, | |
486 | 0, /* rightshift */ | |
487 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
488 | 32, /* bitsize */ | |
489 | FALSE, /* pc_relative */ | |
490 | 0, /* bitpos */ | |
491 | complain_overflow_dont, /* complain_on_overflow */ | |
492 | bfd_elf_generic_reloc, /* special_function */ | |
493 | "R_MICROBLAZE_TLSTPREL32", /* name */ | |
494 | FALSE, /* partial_inplace */ | |
495 | 0, /* src_mask */ | |
496 | 0x0000ffff, /* dst_mask */ | |
497 | FALSE), /* pcrel_offset */ | |
498 | ||
7ba29e2a NC |
499 | }; |
500 | ||
501 | #ifndef NUM_ELEM | |
502 | #define NUM_ELEM(a) (sizeof (a) / sizeof (a)[0]) | |
503 | #endif | |
504 | \f | |
505 | /* Initialize the microblaze_elf_howto_table, so that linear accesses can be done. */ | |
506 | ||
507 | static void | |
508 | microblaze_elf_howto_init (void) | |
509 | { | |
510 | unsigned int i; | |
511 | ||
512 | for (i = NUM_ELEM (microblaze_elf_howto_raw); i--;) | |
513 | { | |
514 | unsigned int type; | |
515 | ||
516 | type = microblaze_elf_howto_raw[i].type; | |
517 | ||
518 | BFD_ASSERT (type < NUM_ELEM (microblaze_elf_howto_table)); | |
519 | ||
520 | microblaze_elf_howto_table [type] = & microblaze_elf_howto_raw [i]; | |
521 | } | |
522 | } | |
523 | \f | |
524 | static reloc_howto_type * | |
525 | microblaze_elf_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, | |
526 | bfd_reloc_code_real_type code) | |
527 | { | |
528 | enum elf_microblaze_reloc_type microblaze_reloc = R_MICROBLAZE_NONE; | |
529 | ||
530 | switch (code) | |
531 | { | |
532 | case BFD_RELOC_NONE: | |
533 | microblaze_reloc = R_MICROBLAZE_NONE; | |
534 | break; | |
535 | case BFD_RELOC_MICROBLAZE_64_NONE: | |
536 | microblaze_reloc = R_MICROBLAZE_64_NONE; | |
537 | break; | |
538 | case BFD_RELOC_32: | |
539 | microblaze_reloc = R_MICROBLAZE_32; | |
540 | break; | |
541 | /* RVA is treated the same as 32 */ | |
542 | case BFD_RELOC_RVA: | |
543 | microblaze_reloc = R_MICROBLAZE_32; | |
544 | break; | |
545 | case BFD_RELOC_32_PCREL: | |
546 | microblaze_reloc = R_MICROBLAZE_32_PCREL; | |
547 | break; | |
548 | case BFD_RELOC_64_PCREL: | |
549 | microblaze_reloc = R_MICROBLAZE_64_PCREL; | |
550 | break; | |
551 | case BFD_RELOC_MICROBLAZE_32_LO_PCREL: | |
552 | microblaze_reloc = R_MICROBLAZE_32_PCREL_LO; | |
553 | break; | |
554 | case BFD_RELOC_64: | |
555 | microblaze_reloc = R_MICROBLAZE_64; | |
556 | break; | |
557 | case BFD_RELOC_MICROBLAZE_32_LO: | |
558 | microblaze_reloc = R_MICROBLAZE_32_LO; | |
559 | break; | |
560 | case BFD_RELOC_MICROBLAZE_32_ROSDA: | |
561 | microblaze_reloc = R_MICROBLAZE_SRO32; | |
562 | break; | |
563 | case BFD_RELOC_MICROBLAZE_32_RWSDA: | |
564 | microblaze_reloc = R_MICROBLAZE_SRW32; | |
565 | break; | |
566 | case BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM: | |
567 | microblaze_reloc = R_MICROBLAZE_32_SYM_OP_SYM; | |
568 | break; | |
569 | case BFD_RELOC_VTABLE_INHERIT: | |
570 | microblaze_reloc = R_MICROBLAZE_GNU_VTINHERIT; | |
571 | break; | |
572 | case BFD_RELOC_VTABLE_ENTRY: | |
573 | microblaze_reloc = R_MICROBLAZE_GNU_VTENTRY; | |
574 | break; | |
575 | case BFD_RELOC_MICROBLAZE_64_GOTPC: | |
576 | microblaze_reloc = R_MICROBLAZE_GOTPC_64; | |
577 | break; | |
578 | case BFD_RELOC_MICROBLAZE_64_GOT: | |
579 | microblaze_reloc = R_MICROBLAZE_GOT_64; | |
580 | break; | |
581 | case BFD_RELOC_MICROBLAZE_64_PLT: | |
582 | microblaze_reloc = R_MICROBLAZE_PLT_64; | |
583 | break; | |
584 | case BFD_RELOC_MICROBLAZE_64_GOTOFF: | |
585 | microblaze_reloc = R_MICROBLAZE_GOTOFF_64; | |
586 | break; | |
587 | case BFD_RELOC_MICROBLAZE_32_GOTOFF: | |
588 | microblaze_reloc = R_MICROBLAZE_GOTOFF_32; | |
589 | break; | |
69b06cc8 ME |
590 | case BFD_RELOC_MICROBLAZE_64_TLSGD: |
591 | microblaze_reloc = R_MICROBLAZE_TLSGD; | |
592 | break; | |
593 | case BFD_RELOC_MICROBLAZE_64_TLSLD: | |
594 | microblaze_reloc = R_MICROBLAZE_TLSLD; | |
595 | break; | |
596 | case BFD_RELOC_MICROBLAZE_32_TLSDTPREL: | |
597 | microblaze_reloc = R_MICROBLAZE_TLSDTPREL32; | |
598 | break; | |
599 | case BFD_RELOC_MICROBLAZE_64_TLSDTPREL: | |
600 | microblaze_reloc = R_MICROBLAZE_TLSDTPREL64; | |
601 | break; | |
602 | case BFD_RELOC_MICROBLAZE_32_TLSDTPMOD: | |
603 | microblaze_reloc = R_MICROBLAZE_TLSDTPMOD32; | |
604 | break; | |
605 | case BFD_RELOC_MICROBLAZE_64_TLSGOTTPREL: | |
606 | microblaze_reloc = R_MICROBLAZE_TLSGOTTPREL32; | |
607 | break; | |
608 | case BFD_RELOC_MICROBLAZE_64_TLSTPREL: | |
609 | microblaze_reloc = R_MICROBLAZE_TLSTPREL32; | |
610 | break; | |
7ba29e2a NC |
611 | case BFD_RELOC_MICROBLAZE_COPY: |
612 | microblaze_reloc = R_MICROBLAZE_COPY; | |
613 | break; | |
614 | default: | |
615 | return (reloc_howto_type *) NULL; | |
616 | } | |
617 | ||
618 | if (!microblaze_elf_howto_table [R_MICROBLAZE_32]) | |
619 | /* Initialize howto table if needed. */ | |
620 | microblaze_elf_howto_init (); | |
621 | ||
622 | return microblaze_elf_howto_table [(int) microblaze_reloc]; | |
623 | }; | |
624 | ||
625 | static reloc_howto_type * | |
626 | microblaze_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
627 | const char *r_name) | |
628 | { | |
629 | unsigned int i; | |
630 | ||
631 | for (i = 0; i < NUM_ELEM (microblaze_elf_howto_raw); i++) | |
632 | if (microblaze_elf_howto_raw[i].name != NULL | |
633 | && strcasecmp (microblaze_elf_howto_raw[i].name, r_name) == 0) | |
634 | return µblaze_elf_howto_raw[i]; | |
635 | ||
636 | return NULL; | |
637 | } | |
638 | ||
639 | /* Set the howto pointer for a RCE ELF reloc. */ | |
640 | ||
641 | static void | |
642 | microblaze_elf_info_to_howto (bfd * abfd ATTRIBUTE_UNUSED, | |
643 | arelent * cache_ptr, | |
644 | Elf_Internal_Rela * dst) | |
645 | { | |
cd21f5da NC |
646 | unsigned int r_type; |
647 | ||
7ba29e2a NC |
648 | if (!microblaze_elf_howto_table [R_MICROBLAZE_32]) |
649 | /* Initialize howto table if needed. */ | |
650 | microblaze_elf_howto_init (); | |
651 | ||
cd21f5da NC |
652 | r_type = ELF32_R_TYPE (dst->r_info); |
653 | if (r_type >= R_MICROBLAZE_max) | |
654 | { | |
64d29018 | 655 | (*_bfd_error_handler) (_("%B: unrecognised MicroBlaze reloc number: %d"), |
cd21f5da NC |
656 | abfd, r_type); |
657 | bfd_set_error (bfd_error_bad_value); | |
658 | r_type = R_MICROBLAZE_NONE; | |
659 | } | |
7ba29e2a | 660 | |
cd21f5da | 661 | cache_ptr->howto = microblaze_elf_howto_table [r_type]; |
7ba29e2a NC |
662 | } |
663 | ||
664 | /* Microblaze ELF local labels start with 'L.' or '$L', not '.L'. */ | |
665 | ||
666 | static bfd_boolean | |
667 | microblaze_elf_is_local_label_name (bfd *abfd, const char *name) | |
668 | { | |
669 | if (name[0] == 'L' && name[1] == '.') | |
670 | return TRUE; | |
671 | ||
672 | if (name[0] == '$' && name[1] == 'L') | |
673 | return TRUE; | |
674 | ||
675 | /* With gcc, the labels go back to starting with '.', so we accept | |
676 | the generic ELF local label syntax as well. */ | |
677 | return _bfd_elf_is_local_label_name (abfd, name); | |
678 | } | |
679 | ||
680 | /* The microblaze linker (like many others) needs to keep track of | |
681 | the number of relocs that it decides to copy as dynamic relocs in | |
682 | check_relocs for each symbol. This is so that it can later discard | |
683 | them if they are found to be unnecessary. We store the information | |
684 | in a field extending the regular ELF linker hash table. */ | |
685 | ||
686 | struct elf32_mb_dyn_relocs | |
687 | { | |
688 | struct elf32_mb_dyn_relocs *next; | |
689 | ||
690 | /* The input section of the reloc. */ | |
691 | asection *sec; | |
692 | ||
693 | /* Total number of relocs copied for the input section. */ | |
694 | bfd_size_type count; | |
695 | ||
696 | /* Number of pc-relative relocs copied for the input section. */ | |
697 | bfd_size_type pc_count; | |
698 | }; | |
699 | ||
700 | /* ELF linker hash entry. */ | |
701 | ||
702 | struct elf32_mb_link_hash_entry | |
703 | { | |
704 | struct elf_link_hash_entry elf; | |
705 | ||
706 | /* Track dynamic relocs copied for this symbol. */ | |
707 | struct elf32_mb_dyn_relocs *dyn_relocs; | |
708 | ||
69b06cc8 ME |
709 | /* TLS Reference Types for the symbol; Updated by check_relocs */ |
710 | #define TLS_GD 1 /* GD reloc. */ | |
711 | #define TLS_LD 2 /* LD reloc. */ | |
712 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
713 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
714 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
715 | unsigned char tls_mask; | |
716 | ||
7ba29e2a NC |
717 | }; |
718 | ||
69b06cc8 ME |
719 | #define IS_TLS_GD(x) (x == (TLS_TLS | TLS_GD)) |
720 | #define IS_TLS_LD(x) (x == (TLS_TLS | TLS_LD)) | |
721 | #define IS_TLS_DTPREL(x) (x == (TLS_TLS | TLS_DTPREL)) | |
722 | #define IS_TLS_NONE(x) (x == 0) | |
723 | ||
7ba29e2a NC |
724 | #define elf32_mb_hash_entry(ent) ((struct elf32_mb_link_hash_entry *)(ent)) |
725 | ||
726 | /* ELF linker hash table. */ | |
727 | ||
728 | struct elf32_mb_link_hash_table | |
729 | { | |
730 | struct elf_link_hash_table elf; | |
731 | ||
732 | /* Short-cuts to get to dynamic linker sections. */ | |
733 | asection *sgot; | |
734 | asection *sgotplt; | |
735 | asection *srelgot; | |
736 | asection *splt; | |
737 | asection *srelplt; | |
738 | asection *sdynbss; | |
739 | asection *srelbss; | |
740 | ||
741 | /* Small local sym to section mapping cache. */ | |
742 | struct sym_cache sym_sec; | |
69b06cc8 ME |
743 | |
744 | /* TLS Local Dynamic GOT Entry */ | |
745 | union { | |
746 | bfd_signed_vma refcount; | |
747 | bfd_vma offset; | |
748 | } tlsld_got; | |
7ba29e2a NC |
749 | }; |
750 | ||
69b06cc8 ME |
751 | /* Nonzero if this section has TLS related relocations. */ |
752 | #define has_tls_reloc sec_flg0 | |
753 | ||
7ba29e2a NC |
754 | /* Get the ELF linker hash table from a link_info structure. */ |
755 | ||
756 | #define elf32_mb_hash_table(p) \ | |
4dfe6ac6 NC |
757 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
758 | == MICROBLAZE_ELF_DATA ? ((struct elf32_mb_link_hash_table *) ((p)->hash)) : NULL) | |
7ba29e2a NC |
759 | |
760 | /* Create an entry in a microblaze ELF linker hash table. */ | |
761 | ||
762 | static struct bfd_hash_entry * | |
763 | link_hash_newfunc (struct bfd_hash_entry *entry, | |
764 | struct bfd_hash_table *table, | |
765 | const char *string) | |
766 | { | |
767 | /* Allocate the structure if it has not already been allocated by a | |
768 | subclass. */ | |
769 | if (entry == NULL) | |
770 | { | |
771 | entry = bfd_hash_allocate (table, | |
772 | sizeof (struct elf32_mb_link_hash_entry)); | |
773 | if (entry == NULL) | |
774 | return entry; | |
775 | } | |
776 | ||
777 | /* Call the allocation method of the superclass. */ | |
778 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
779 | if (entry != NULL) | |
780 | { | |
781 | struct elf32_mb_link_hash_entry *eh; | |
782 | ||
783 | eh = (struct elf32_mb_link_hash_entry *) entry; | |
784 | eh->dyn_relocs = NULL; | |
69b06cc8 | 785 | eh->tls_mask = 0; |
7ba29e2a NC |
786 | } |
787 | ||
788 | return entry; | |
789 | } | |
790 | ||
791 | /* Create a mb ELF linker hash table. */ | |
792 | ||
793 | static struct bfd_link_hash_table * | |
794 | microblaze_elf_link_hash_table_create (bfd *abfd) | |
795 | { | |
796 | struct elf32_mb_link_hash_table *ret; | |
797 | bfd_size_type amt = sizeof (struct elf32_mb_link_hash_table); | |
798 | ||
799 | ret = (struct elf32_mb_link_hash_table *) bfd_zmalloc (amt); | |
800 | if (ret == NULL) | |
801 | return NULL; | |
802 | ||
803 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc, | |
4dfe6ac6 NC |
804 | sizeof (struct elf32_mb_link_hash_entry), |
805 | MICROBLAZE_ELF_DATA)) | |
7ba29e2a NC |
806 | { |
807 | free (ret); | |
808 | return NULL; | |
809 | } | |
810 | ||
811 | return &ret->elf.root; | |
812 | } | |
813 | \f | |
814 | /* Set the values of the small data pointers. */ | |
815 | ||
816 | static void | |
817 | microblaze_elf_final_sdp (struct bfd_link_info *info) | |
818 | { | |
819 | struct bfd_link_hash_entry *h; | |
820 | ||
821 | h = bfd_link_hash_lookup (info->hash, RO_SDA_ANCHOR_NAME, FALSE, FALSE, TRUE); | |
822 | if (h != (struct bfd_link_hash_entry *) NULL | |
823 | && h->type == bfd_link_hash_defined) | |
824 | ro_small_data_pointer = (h->u.def.value | |
825 | + h->u.def.section->output_section->vma | |
826 | + h->u.def.section->output_offset); | |
827 | ||
828 | h = bfd_link_hash_lookup (info->hash, RW_SDA_ANCHOR_NAME, FALSE, FALSE, TRUE); | |
829 | if (h != (struct bfd_link_hash_entry *) NULL | |
830 | && h->type == bfd_link_hash_defined) | |
831 | rw_small_data_pointer = (h->u.def.value | |
832 | + h->u.def.section->output_section->vma | |
833 | + h->u.def.section->output_offset); | |
834 | } | |
835 | ||
69b06cc8 ME |
836 | static bfd_vma |
837 | dtprel_base (struct bfd_link_info *info) | |
838 | { | |
839 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
840 | if (elf_hash_table (info)->tls_sec == NULL) | |
841 | return 0; | |
842 | return elf_hash_table (info)->tls_sec->vma; | |
843 | } | |
844 | ||
845 | /* The size of the thread control block. */ | |
846 | #define TCB_SIZE 8 | |
847 | ||
848 | /* Output a simple dynamic relocation into SRELOC. */ | |
849 | ||
850 | static void | |
851 | microblaze_elf_output_dynamic_relocation (bfd *output_bfd, | |
852 | asection *sreloc, | |
853 | unsigned long reloc_index, | |
854 | unsigned long indx, | |
855 | int r_type, | |
856 | bfd_vma offset, | |
857 | bfd_vma addend) | |
858 | { | |
859 | ||
860 | Elf_Internal_Rela rel; | |
861 | ||
862 | rel.r_info = ELF32_R_INFO (indx, r_type); | |
863 | rel.r_offset = offset; | |
864 | rel.r_addend = addend; | |
865 | ||
866 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
867 | (sreloc->contents + reloc_index * sizeof (Elf32_External_Rela))); | |
868 | } | |
869 | ||
7ba29e2a NC |
870 | /* This code is taken from elf32-m32r.c |
871 | There is some attempt to make this function usable for many architectures, | |
872 | both USE_REL and USE_RELA ['twould be nice if such a critter existed], | |
873 | if only to serve as a learning tool. | |
874 | ||
875 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
876 | to handle the relocations for a section. | |
877 | ||
878 | The relocs are always passed as Rela structures; if the section | |
879 | actually uses Rel structures, the r_addend field will always be | |
880 | zero. | |
881 | ||
882 | This function is responsible for adjust the section contents as | |
883 | necessary, and (if using Rela relocs and generating a | |
884 | relocatable output file) adjusting the reloc addend as | |
885 | necessary. | |
886 | ||
887 | This function does not have to worry about setting the reloc | |
888 | address or the reloc symbol index. | |
889 | ||
890 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
891 | ||
892 | LOCAL_SECTIONS is an array giving the section in the input file | |
893 | corresponding to the st_shndx field of each local symbol. | |
894 | ||
895 | The global hash table entry for the global symbols can be found | |
896 | via elf_sym_hashes (input_bfd). | |
897 | ||
898 | When generating relocatable output, this function must handle | |
899 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
900 | going to be the section symbol corresponding to the output | |
901 | section, which means that the addend must be adjusted | |
902 | accordingly. */ | |
903 | ||
904 | static bfd_boolean | |
905 | microblaze_elf_relocate_section (bfd *output_bfd, | |
906 | struct bfd_link_info *info, | |
907 | bfd *input_bfd, | |
908 | asection *input_section, | |
909 | bfd_byte *contents, | |
910 | Elf_Internal_Rela *relocs, | |
911 | Elf_Internal_Sym *local_syms, | |
912 | asection **local_sections) | |
913 | { | |
914 | struct elf32_mb_link_hash_table *htab; | |
915 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
916 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); | |
917 | Elf_Internal_Rela *rel, *relend; | |
f23200ad | 918 | int endian = (bfd_little_endian (output_bfd)) ? 0 : 2; |
7ba29e2a NC |
919 | /* Assume success. */ |
920 | bfd_boolean ret = TRUE; | |
921 | asection *sreloc; | |
922 | bfd_vma *local_got_offsets; | |
69b06cc8 | 923 | unsigned int tls_type; |
7ba29e2a NC |
924 | |
925 | if (!microblaze_elf_howto_table[R_MICROBLAZE_max-1]) | |
926 | microblaze_elf_howto_init (); | |
927 | ||
928 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
929 | if (htab == NULL) |
930 | return FALSE; | |
931 | ||
7ba29e2a NC |
932 | local_got_offsets = elf_local_got_offsets (input_bfd); |
933 | ||
934 | sreloc = elf_section_data (input_section)->sreloc; | |
935 | ||
936 | rel = relocs; | |
937 | relend = relocs + input_section->reloc_count; | |
938 | for (; rel < relend; rel++) | |
939 | { | |
940 | int r_type; | |
941 | reloc_howto_type *howto; | |
942 | unsigned long r_symndx; | |
943 | bfd_vma addend = rel->r_addend; | |
944 | bfd_vma offset = rel->r_offset; | |
945 | struct elf_link_hash_entry *h; | |
946 | Elf_Internal_Sym *sym; | |
947 | asection *sec; | |
948 | const char *sym_name; | |
949 | bfd_reloc_status_type r = bfd_reloc_ok; | |
950 | const char *errmsg = NULL; | |
951 | bfd_boolean unresolved_reloc = FALSE; | |
952 | ||
953 | h = NULL; | |
954 | r_type = ELF32_R_TYPE (rel->r_info); | |
69b06cc8 ME |
955 | tls_type = 0; |
956 | ||
7ba29e2a NC |
957 | if (r_type < 0 || r_type >= (int) R_MICROBLAZE_max) |
958 | { | |
959 | (*_bfd_error_handler) (_("%s: unknown relocation type %d"), | |
960 | bfd_get_filename (input_bfd), (int) r_type); | |
961 | bfd_set_error (bfd_error_bad_value); | |
962 | ret = FALSE; | |
963 | continue; | |
964 | } | |
965 | ||
966 | howto = microblaze_elf_howto_table[r_type]; | |
967 | r_symndx = ELF32_R_SYM (rel->r_info); | |
968 | ||
0e1862bb | 969 | if (bfd_link_relocatable (info)) |
7ba29e2a NC |
970 | { |
971 | /* This is a relocatable link. We don't have to change | |
972 | anything, unless the reloc is against a section symbol, | |
973 | in which case we have to adjust according to where the | |
974 | section symbol winds up in the output section. */ | |
975 | sec = NULL; | |
976 | if (r_symndx >= symtab_hdr->sh_info) | |
977 | /* External symbol. */ | |
978 | continue; | |
979 | ||
980 | /* Local symbol. */ | |
981 | sym = local_syms + r_symndx; | |
982 | sym_name = "<local symbol>"; | |
983 | /* STT_SECTION: symbol is associated with a section. */ | |
984 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
985 | /* Symbol isn't associated with a section. Nothing to do. */ | |
986 | continue; | |
987 | ||
988 | sec = local_sections[r_symndx]; | |
989 | addend += sec->output_offset + sym->st_value; | |
990 | #ifndef USE_REL | |
991 | /* This can't be done for USE_REL because it doesn't mean anything | |
992 | and elf_link_input_bfd asserts this stays zero. */ | |
993 | /* rel->r_addend = addend; */ | |
994 | #endif | |
995 | ||
996 | #ifndef USE_REL | |
997 | /* Addends are stored with relocs. We're done. */ | |
998 | continue; | |
999 | #else /* USE_REL */ | |
1000 | /* If partial_inplace, we need to store any additional addend | |
1001 | back in the section. */ | |
1002 | if (!howto->partial_inplace) | |
1003 | continue; | |
1004 | /* ??? Here is a nice place to call a special_function like handler. */ | |
1005 | r = _bfd_relocate_contents (howto, input_bfd, addend, | |
1006 | contents + offset); | |
1007 | #endif /* USE_REL */ | |
1008 | } | |
1009 | else | |
1010 | { | |
1011 | bfd_vma relocation; | |
1012 | ||
1013 | /* This is a final link. */ | |
1014 | sym = NULL; | |
1015 | sec = NULL; | |
1016 | unresolved_reloc = FALSE; | |
1017 | ||
1018 | if (r_symndx < symtab_hdr->sh_info) | |
1019 | { | |
1020 | /* Local symbol. */ | |
1021 | sym = local_syms + r_symndx; | |
1022 | sec = local_sections[r_symndx]; | |
1023 | if (sec == 0) | |
1024 | continue; | |
1025 | sym_name = "<local symbol>"; | |
1026 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
1027 | /* r_addend may have changed if the reference section was | |
1028 | a merge section. */ | |
1029 | addend = rel->r_addend; | |
1030 | } | |
1031 | else | |
1032 | { | |
1033 | /* External symbol. */ | |
1034 | bfd_boolean warned ATTRIBUTE_UNUSED; | |
62d887d4 | 1035 | bfd_boolean ignored ATTRIBUTE_UNUSED; |
7ba29e2a NC |
1036 | |
1037 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
1038 | r_symndx, symtab_hdr, sym_hashes, | |
1039 | h, sec, relocation, | |
62d887d4 | 1040 | unresolved_reloc, warned, ignored); |
7ba29e2a NC |
1041 | sym_name = h->root.root.string; |
1042 | } | |
1043 | ||
1044 | /* Sanity check the address. */ | |
e57278ef | 1045 | if (offset > bfd_get_section_limit (input_bfd, input_section)) |
7ba29e2a NC |
1046 | { |
1047 | r = bfd_reloc_outofrange; | |
1048 | goto check_reloc; | |
1049 | } | |
1050 | ||
1051 | switch ((int) r_type) | |
1052 | { | |
1053 | case (int) R_MICROBLAZE_SRO32 : | |
1054 | { | |
1055 | const char *name; | |
1056 | ||
1057 | /* Only relocate if the symbol is defined. */ | |
1058 | if (sec) | |
1059 | { | |
a0f49396 | 1060 | name = bfd_get_section_name (sec->owner, sec); |
7ba29e2a NC |
1061 | |
1062 | if (strcmp (name, ".sdata2") == 0 | |
1063 | || strcmp (name, ".sbss2") == 0) | |
1064 | { | |
1065 | if (ro_small_data_pointer == 0) | |
1066 | microblaze_elf_final_sdp (info); | |
1067 | if (ro_small_data_pointer == 0) | |
1068 | { | |
1069 | ret = FALSE; | |
1070 | r = bfd_reloc_undefined; | |
1071 | goto check_reloc; | |
1072 | } | |
1073 | ||
1074 | /* At this point `relocation' contains the object's | |
1075 | address. */ | |
1076 | relocation -= ro_small_data_pointer; | |
1077 | /* Now it contains the offset from _SDA2_BASE_. */ | |
1078 | r = _bfd_final_link_relocate (howto, input_bfd, | |
1079 | input_section, | |
1080 | contents, offset, | |
1081 | relocation, addend); | |
1082 | } | |
1083 | else | |
1084 | { | |
1085 | (*_bfd_error_handler) (_("%s: The target (%s) of an %s relocation is in the wrong section (%s)"), | |
1086 | bfd_get_filename (input_bfd), | |
1087 | sym_name, | |
1088 | microblaze_elf_howto_table[(int) r_type]->name, | |
a0f49396 | 1089 | bfd_get_section_name (sec->owner, sec)); |
7ba29e2a NC |
1090 | /*bfd_set_error (bfd_error_bad_value); ??? why? */ |
1091 | ret = FALSE; | |
1092 | continue; | |
1093 | } | |
1094 | } | |
1095 | } | |
1096 | break; | |
1097 | ||
1098 | case (int) R_MICROBLAZE_SRW32 : | |
1099 | { | |
1100 | const char *name; | |
1101 | ||
1102 | /* Only relocate if the symbol is defined. */ | |
1103 | if (sec) | |
1104 | { | |
a0f49396 | 1105 | name = bfd_get_section_name (sec->owner, sec); |
7ba29e2a NC |
1106 | |
1107 | if (strcmp (name, ".sdata") == 0 | |
1108 | || strcmp (name, ".sbss") == 0) | |
1109 | { | |
1110 | if (rw_small_data_pointer == 0) | |
1111 | microblaze_elf_final_sdp (info); | |
1112 | if (rw_small_data_pointer == 0) | |
1113 | { | |
1114 | ret = FALSE; | |
1115 | r = bfd_reloc_undefined; | |
1116 | goto check_reloc; | |
1117 | } | |
1118 | ||
1119 | /* At this point `relocation' contains the object's | |
1120 | address. */ | |
1121 | relocation -= rw_small_data_pointer; | |
1122 | /* Now it contains the offset from _SDA_BASE_. */ | |
1123 | r = _bfd_final_link_relocate (howto, input_bfd, | |
1124 | input_section, | |
1125 | contents, offset, | |
1126 | relocation, addend); | |
1127 | } | |
1128 | else | |
1129 | { | |
1130 | (*_bfd_error_handler) (_("%s: The target (%s) of an %s relocation is in the wrong section (%s)"), | |
1131 | bfd_get_filename (input_bfd), | |
1132 | sym_name, | |
1133 | microblaze_elf_howto_table[(int) r_type]->name, | |
a0f49396 | 1134 | bfd_get_section_name (sec->owner, sec)); |
7ba29e2a NC |
1135 | /*bfd_set_error (bfd_error_bad_value); ??? why? */ |
1136 | ret = FALSE; | |
1137 | continue; | |
1138 | } | |
1139 | } | |
1140 | } | |
1141 | break; | |
1142 | ||
1143 | case (int) R_MICROBLAZE_32_SYM_OP_SYM: | |
1144 | break; /* Do nothing. */ | |
1145 | ||
1146 | case (int) R_MICROBLAZE_GOTPC_64: | |
1147 | relocation = htab->sgotplt->output_section->vma | |
1148 | + htab->sgotplt->output_offset; | |
1149 | relocation -= (input_section->output_section->vma | |
1150 | + input_section->output_offset | |
1151 | + offset + INST_WORD_SIZE); | |
1152 | relocation += addend; | |
1153 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
f23200ad | 1154 | contents + offset + endian); |
7ba29e2a | 1155 | bfd_put_16 (input_bfd, relocation & 0xffff, |
f23200ad | 1156 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1157 | break; |
1158 | ||
1159 | case (int) R_MICROBLAZE_PLT_64: | |
1160 | { | |
1161 | bfd_vma immediate; | |
1162 | if (htab->splt != NULL && h != NULL | |
1163 | && h->plt.offset != (bfd_vma) -1) | |
1164 | { | |
1165 | relocation = (htab->splt->output_section->vma | |
1166 | + htab->splt->output_offset | |
1167 | + h->plt.offset); | |
1168 | unresolved_reloc = FALSE; | |
1169 | immediate = relocation - (input_section->output_section->vma | |
1170 | + input_section->output_offset | |
1171 | + offset + INST_WORD_SIZE); | |
1172 | bfd_put_16 (input_bfd, (immediate >> 16) & 0xffff, | |
f23200ad | 1173 | contents + offset + endian); |
7ba29e2a | 1174 | bfd_put_16 (input_bfd, immediate & 0xffff, |
f23200ad | 1175 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1176 | } |
1177 | else | |
1178 | { | |
1179 | relocation -= (input_section->output_section->vma | |
1180 | + input_section->output_offset | |
1181 | + offset + INST_WORD_SIZE); | |
1182 | immediate = relocation; | |
1183 | bfd_put_16 (input_bfd, (immediate >> 16) & 0xffff, | |
f23200ad | 1184 | contents + offset + endian); |
7ba29e2a | 1185 | bfd_put_16 (input_bfd, immediate & 0xffff, |
f23200ad | 1186 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1187 | } |
1188 | break; | |
1189 | } | |
1190 | ||
69b06cc8 ME |
1191 | case (int) R_MICROBLAZE_TLSGD: |
1192 | tls_type = (TLS_TLS | TLS_GD); | |
1193 | goto dogot; | |
1194 | case (int) R_MICROBLAZE_TLSLD: | |
1195 | tls_type = (TLS_TLS | TLS_LD); | |
1196 | dogot: | |
7ba29e2a NC |
1197 | case (int) R_MICROBLAZE_GOT_64: |
1198 | { | |
69b06cc8 ME |
1199 | bfd_vma *offp; |
1200 | bfd_vma off, off2; | |
1201 | unsigned long indx; | |
1202 | bfd_vma static_value; | |
1203 | ||
1204 | bfd_boolean need_relocs = FALSE; | |
7ba29e2a NC |
1205 | if (htab->sgot == NULL) |
1206 | abort (); | |
69b06cc8 ME |
1207 | |
1208 | indx = 0; | |
1209 | offp = NULL; | |
1210 | ||
1211 | /* 1. Identify GOT Offset; | |
1212 | 2. Compute Static Values | |
1213 | 3. Process Module Id, Process Offset | |
1214 | 4. Fixup Relocation with GOT offset value. */ | |
1215 | ||
1216 | /* 1. Determine GOT Offset to use : TLS_LD, global, local */ | |
1217 | if (IS_TLS_LD (tls_type)) | |
1218 | offp = &htab->tlsld_got.offset; | |
1219 | else if (h != NULL) | |
1220 | { | |
1221 | if (htab->sgotplt != NULL && h->got.offset != (bfd_vma) -1) | |
1222 | offp = &h->got.offset; | |
1223 | else | |
1224 | abort (); | |
1225 | } | |
1226 | else | |
7ba29e2a | 1227 | { |
7ba29e2a NC |
1228 | if (local_got_offsets == NULL) |
1229 | abort (); | |
69b06cc8 ME |
1230 | offp = &local_got_offsets[r_symndx]; |
1231 | } | |
1232 | ||
1233 | if (!offp) | |
1234 | abort (); | |
1235 | ||
1236 | off = (*offp) & ~1; | |
1237 | off2 = off; | |
1238 | ||
1239 | if (IS_TLS_LD(tls_type) || IS_TLS_GD(tls_type)) | |
1240 | off2 = off + 4; | |
1241 | ||
1242 | /* Symbol index to use for relocs */ | |
1243 | if (h != NULL) | |
1244 | { | |
1245 | bfd_boolean dyn = | |
1246 | elf_hash_table (info)->dynamic_sections_created; | |
1247 | ||
0e1862bb L |
1248 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
1249 | bfd_link_pic (info), | |
1250 | h) | |
1251 | && (!bfd_link_pic (info) | |
1252 | || !SYMBOL_REFERENCES_LOCAL (info, h))) | |
69b06cc8 ME |
1253 | indx = h->dynindx; |
1254 | } | |
7ba29e2a | 1255 | |
69b06cc8 | 1256 | /* Need to generate relocs ? */ |
0e1862bb | 1257 | if ((bfd_link_pic (info) || indx != 0) |
69b06cc8 ME |
1258 | && (h == NULL |
1259 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
1260 | || h->root.type != bfd_link_hash_undefweak)) | |
1261 | need_relocs = TRUE; | |
1262 | ||
1263 | /* 2. Compute/Emit Static value of r-expression */ | |
1264 | static_value = relocation + addend; | |
1265 | ||
1266 | /* 3. Process module-id and offset */ | |
1267 | if (! ((*offp) & 1) ) | |
1268 | { | |
1269 | bfd_vma got_offset; | |
1270 | ||
1271 | got_offset = (htab->sgot->output_section->vma | |
1272 | + htab->sgot->output_offset | |
1273 | + off); | |
1274 | ||
1275 | /* Process module-id */ | |
1276 | if (IS_TLS_LD(tls_type)) | |
1277 | { | |
0e1862bb | 1278 | if (! bfd_link_pic (info)) |
7ba29e2a | 1279 | { |
69b06cc8 ME |
1280 | bfd_put_32 (output_bfd, 1, htab->sgot->contents + off); |
1281 | } | |
1282 | else | |
1283 | { | |
1284 | microblaze_elf_output_dynamic_relocation (output_bfd, | |
1285 | htab->srelgot, htab->srelgot->reloc_count++, | |
1286 | /* symindex= */ 0, R_MICROBLAZE_TLSDTPMOD32, | |
1287 | got_offset, 0); | |
7ba29e2a | 1288 | } |
7ba29e2a | 1289 | } |
69b06cc8 ME |
1290 | else if (IS_TLS_GD(tls_type)) |
1291 | { | |
1292 | if (! need_relocs) | |
1293 | { | |
1294 | bfd_put_32 (output_bfd, 1, htab->sgot->contents + off); | |
1295 | } | |
1296 | else | |
1297 | { | |
1298 | microblaze_elf_output_dynamic_relocation (output_bfd, | |
1299 | htab->srelgot, | |
1300 | htab->srelgot->reloc_count++, | |
1301 | /* symindex= */ indx, R_MICROBLAZE_TLSDTPMOD32, | |
1302 | got_offset, indx ? 0 : static_value); | |
1303 | } | |
1304 | } | |
1305 | ||
1306 | /* Process Offset */ | |
1307 | if (htab->srelgot == NULL) | |
1308 | abort (); | |
1309 | ||
1310 | got_offset = (htab->sgot->output_section->vma | |
1311 | + htab->sgot->output_offset | |
1312 | + off2); | |
1313 | if (IS_TLS_LD(tls_type)) | |
1314 | { | |
1315 | /* For LD, offset should be 0 */ | |
1316 | *offp |= 1; | |
1317 | bfd_put_32 (output_bfd, 0, htab->sgot->contents + off2); | |
1318 | } | |
1319 | else if (IS_TLS_GD(tls_type)) | |
7ba29e2a | 1320 | { |
69b06cc8 ME |
1321 | *offp |= 1; |
1322 | static_value -= dtprel_base(info); | |
1323 | if (need_relocs) | |
1324 | { | |
1325 | microblaze_elf_output_dynamic_relocation (output_bfd, | |
1326 | htab->srelgot, htab->srelgot->reloc_count++, | |
1327 | /* symindex= */ indx, R_MICROBLAZE_TLSDTPREL32, | |
1328 | got_offset, indx ? 0 : static_value); | |
1329 | } | |
1330 | else | |
1331 | { | |
1332 | bfd_put_32 (output_bfd, static_value, | |
1333 | htab->sgot->contents + off2); | |
1334 | } | |
7ba29e2a NC |
1335 | } |
1336 | else | |
69b06cc8 ME |
1337 | { |
1338 | bfd_put_32 (output_bfd, static_value, | |
1339 | htab->sgot->contents + off2); | |
1340 | ||
1341 | /* Relocs for dyn symbols generated by | |
1342 | finish_dynamic_symbols */ | |
0e1862bb | 1343 | if (bfd_link_pic (info) && h == NULL) |
69b06cc8 ME |
1344 | { |
1345 | *offp |= 1; | |
1346 | microblaze_elf_output_dynamic_relocation (output_bfd, | |
1347 | htab->srelgot, htab->srelgot->reloc_count++, | |
1348 | /* symindex= */ indx, R_MICROBLAZE_REL, | |
1349 | got_offset, static_value); | |
1350 | } | |
1351 | } | |
7ba29e2a | 1352 | } |
69b06cc8 ME |
1353 | |
1354 | /* 4. Fixup Relocation with GOT offset value | |
1355 | Compute relative address of GOT entry for applying | |
1356 | the current relocation */ | |
1357 | relocation = htab->sgot->output_section->vma | |
1358 | + htab->sgot->output_offset | |
1359 | + off | |
1360 | - htab->sgotplt->output_section->vma | |
1361 | - htab->sgotplt->output_offset; | |
1362 | ||
1363 | /* Apply Current Relocation */ | |
7ba29e2a | 1364 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, |
f23200ad | 1365 | contents + offset + endian); |
7ba29e2a | 1366 | bfd_put_16 (input_bfd, relocation & 0xffff, |
f23200ad | 1367 | contents + offset + endian + INST_WORD_SIZE); |
69b06cc8 ME |
1368 | |
1369 | unresolved_reloc = FALSE; | |
7ba29e2a NC |
1370 | break; |
1371 | } | |
1372 | ||
1373 | case (int) R_MICROBLAZE_GOTOFF_64: | |
1374 | { | |
1375 | bfd_vma immediate; | |
1376 | unsigned short lo, high; | |
1377 | relocation += addend; | |
1378 | relocation -= htab->sgotplt->output_section->vma | |
1379 | + htab->sgotplt->output_offset; | |
1380 | /* Write this value into correct location. */ | |
1381 | immediate = relocation; | |
1382 | lo = immediate & 0x0000ffff; | |
1383 | high = (immediate >> 16) & 0x0000ffff; | |
f23200ad ME |
1384 | bfd_put_16 (input_bfd, high, contents + offset + endian); |
1385 | bfd_put_16 (input_bfd, lo, contents + offset + INST_WORD_SIZE + endian); | |
7ba29e2a NC |
1386 | break; |
1387 | } | |
1388 | ||
1389 | case (int) R_MICROBLAZE_GOTOFF_32: | |
1390 | { | |
1391 | relocation += addend; | |
1392 | relocation -= htab->sgotplt->output_section->vma | |
1393 | + htab->sgotplt->output_offset; | |
1394 | /* Write this value into correct location. */ | |
1395 | bfd_put_32 (input_bfd, relocation, contents + offset); | |
1396 | break; | |
1397 | } | |
1398 | ||
69b06cc8 ME |
1399 | case (int) R_MICROBLAZE_TLSDTPREL64: |
1400 | relocation += addend; | |
1401 | relocation -= dtprel_base(info); | |
1402 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
1403 | contents + offset + 2); | |
1404 | bfd_put_16 (input_bfd, relocation & 0xffff, | |
1405 | contents + offset + 2 + INST_WORD_SIZE); | |
1406 | break; | |
7ba29e2a NC |
1407 | case (int) R_MICROBLAZE_64_PCREL : |
1408 | case (int) R_MICROBLAZE_64: | |
1409 | case (int) R_MICROBLAZE_32: | |
1410 | { | |
cf35638d | 1411 | /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols |
7ba29e2a NC |
1412 | from removed linkonce sections, or sections discarded by |
1413 | a linker script. */ | |
cf35638d | 1414 | if (r_symndx == STN_UNDEF || (input_section->flags & SEC_ALLOC) == 0) |
7ba29e2a NC |
1415 | { |
1416 | relocation += addend; | |
1417 | if (r_type == R_MICROBLAZE_32) | |
1418 | bfd_put_32 (input_bfd, relocation, contents + offset); | |
1419 | else | |
1420 | { | |
1421 | if (r_type == R_MICROBLAZE_64_PCREL) | |
1422 | relocation -= (input_section->output_section->vma | |
1423 | + input_section->output_offset | |
1424 | + offset + INST_WORD_SIZE); | |
1425 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
f23200ad | 1426 | contents + offset + endian); |
7ba29e2a | 1427 | bfd_put_16 (input_bfd, relocation & 0xffff, |
f23200ad | 1428 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1429 | } |
1430 | break; | |
1431 | } | |
1432 | ||
0e1862bb | 1433 | if ((bfd_link_pic (info) |
7ba29e2a NC |
1434 | && (h == NULL |
1435 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
1436 | || h->root.type != bfd_link_hash_undefweak) | |
1437 | && (!howto->pc_relative | |
1438 | || (h != NULL | |
1439 | && h->dynindx != -1 | |
1440 | && (!info->symbolic | |
1441 | || !h->def_regular)))) | |
0e1862bb | 1442 | || (!bfd_link_pic (info) |
7ba29e2a NC |
1443 | && h != NULL |
1444 | && h->dynindx != -1 | |
1445 | && !h->non_got_ref | |
1446 | && ((h->def_dynamic | |
1447 | && !h->def_regular) | |
1448 | || h->root.type == bfd_link_hash_undefweak | |
1449 | || h->root.type == bfd_link_hash_undefined))) | |
1450 | { | |
1451 | Elf_Internal_Rela outrel; | |
1452 | bfd_byte *loc; | |
c7e2358a | 1453 | bfd_boolean skip; |
7ba29e2a NC |
1454 | |
1455 | /* When generating a shared object, these relocations | |
1456 | are copied into the output file to be resolved at run | |
1457 | time. */ | |
1458 | ||
1459 | BFD_ASSERT (sreloc != NULL); | |
1460 | ||
1461 | skip = FALSE; | |
1462 | ||
1463 | outrel.r_offset = | |
1464 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
1465 | rel->r_offset); | |
1466 | if (outrel.r_offset == (bfd_vma) -1) | |
1467 | skip = TRUE; | |
1468 | else if (outrel.r_offset == (bfd_vma) -2) | |
c7e2358a | 1469 | skip = TRUE; |
7ba29e2a NC |
1470 | outrel.r_offset += (input_section->output_section->vma |
1471 | + input_section->output_offset); | |
1472 | ||
1473 | if (skip) | |
1474 | memset (&outrel, 0, sizeof outrel); | |
1475 | /* h->dynindx may be -1 if the symbol was marked to | |
1476 | become local. */ | |
1477 | else if (h != NULL | |
1478 | && ((! info->symbolic && h->dynindx != -1) | |
1479 | || !h->def_regular)) | |
1480 | { | |
1481 | BFD_ASSERT (h->dynindx != -1); | |
1482 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
1483 | outrel.r_addend = addend; | |
1484 | } | |
1485 | else | |
1486 | { | |
1487 | if (r_type == R_MICROBLAZE_32) | |
1488 | { | |
1489 | outrel.r_info = ELF32_R_INFO (0, R_MICROBLAZE_REL); | |
1490 | outrel.r_addend = relocation + addend; | |
1491 | } | |
1492 | else | |
1493 | { | |
1494 | BFD_FAIL (); | |
1495 | (*_bfd_error_handler) | |
1496 | (_("%B: probably compiled without -fPIC?"), | |
1497 | input_bfd); | |
1498 | bfd_set_error (bfd_error_bad_value); | |
1499 | return FALSE; | |
1500 | } | |
1501 | } | |
1502 | ||
1503 | loc = sreloc->contents; | |
1504 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1505 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
1506 | break; | |
1507 | } | |
1508 | else | |
1509 | { | |
1510 | relocation += addend; | |
1511 | if (r_type == R_MICROBLAZE_32) | |
1512 | bfd_put_32 (input_bfd, relocation, contents + offset); | |
1513 | else | |
1514 | { | |
1515 | if (r_type == R_MICROBLAZE_64_PCREL) | |
1516 | relocation -= (input_section->output_section->vma | |
1517 | + input_section->output_offset | |
1518 | + offset + INST_WORD_SIZE); | |
1519 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
f23200ad | 1520 | contents + offset + endian); |
7ba29e2a | 1521 | bfd_put_16 (input_bfd, relocation & 0xffff, |
f23200ad | 1522 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1523 | } |
1524 | break; | |
1525 | } | |
1526 | } | |
1527 | ||
1528 | default : | |
1529 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
1530 | contents, offset, | |
1531 | relocation, addend); | |
1532 | break; | |
1533 | } | |
1534 | } | |
1535 | ||
1536 | check_reloc: | |
1537 | ||
1538 | if (r != bfd_reloc_ok) | |
1539 | { | |
1540 | /* FIXME: This should be generic enough to go in a utility. */ | |
1541 | const char *name; | |
1542 | ||
1543 | if (h != NULL) | |
1544 | name = h->root.root.string; | |
1545 | else | |
1546 | { | |
1547 | name = (bfd_elf_string_from_elf_section | |
1548 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
1549 | if (name == NULL || *name == '\0') | |
1550 | name = bfd_section_name (input_bfd, sec); | |
1551 | } | |
1552 | ||
1553 | if (errmsg != NULL) | |
1554 | goto common_error; | |
1555 | ||
1556 | switch (r) | |
1557 | { | |
1558 | case bfd_reloc_overflow: | |
1559 | if (!((*info->callbacks->reloc_overflow) | |
1560 | (info, (h ? &h->root : NULL), name, howto->name, | |
1561 | (bfd_vma) 0, input_bfd, input_section, offset))) | |
1562 | return FALSE; | |
1563 | break; | |
1564 | ||
1565 | case bfd_reloc_undefined: | |
1566 | if (!((*info->callbacks->undefined_symbol) | |
1567 | (info, name, input_bfd, input_section, offset, TRUE))) | |
1568 | return FALSE; | |
1569 | break; | |
1570 | ||
1571 | case bfd_reloc_outofrange: | |
1572 | errmsg = _("internal error: out of range error"); | |
1573 | goto common_error; | |
1574 | ||
1575 | case bfd_reloc_notsupported: | |
1576 | errmsg = _("internal error: unsupported relocation error"); | |
1577 | goto common_error; | |
1578 | ||
1579 | case bfd_reloc_dangerous: | |
1580 | errmsg = _("internal error: dangerous error"); | |
1581 | goto common_error; | |
1582 | ||
1583 | default: | |
1584 | errmsg = _("internal error: unknown error"); | |
1585 | /* Fall through. */ | |
1586 | common_error: | |
1587 | if (!((*info->callbacks->warning) | |
1588 | (info, errmsg, name, input_bfd, input_section, offset))) | |
1589 | return FALSE; | |
1590 | break; | |
1591 | } | |
1592 | } | |
1593 | } | |
1594 | ||
1595 | return ret; | |
1596 | } | |
f23200ad ME |
1597 | |
1598 | /* Merge backend specific data from an object file to the output | |
1599 | object file when linking. | |
1600 | ||
1601 | Note: We only use this hook to catch endian mismatches. */ | |
1602 | static bfd_boolean | |
1603 | microblaze_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd) | |
1604 | { | |
1605 | /* Check if we have the same endianess. */ | |
1606 | if (! _bfd_generic_verify_endian_match (ibfd, obfd)) | |
1607 | return FALSE; | |
1608 | ||
1609 | return TRUE; | |
1610 | } | |
1611 | ||
7ba29e2a NC |
1612 | \f |
1613 | /* Calculate fixup value for reference. */ | |
1614 | ||
1615 | static int | |
886e427f | 1616 | calc_fixup (bfd_vma start, bfd_vma size, asection *sec) |
7ba29e2a | 1617 | { |
886e427f | 1618 | bfd_vma end = start + size; |
7ba29e2a NC |
1619 | int i, fixup = 0; |
1620 | ||
1621 | if (sec == NULL || sec->relax == NULL) | |
1622 | return 0; | |
1623 | ||
1624 | /* Look for addr in relax table, total fixup value. */ | |
1625 | for (i = 0; i < sec->relax_count; i++) | |
1626 | { | |
886e427f | 1627 | if (end <= sec->relax[i].addr) |
7ba29e2a | 1628 | break; |
886e427f ME |
1629 | if ((end != start) && (start > sec->relax[i].addr)) |
1630 | continue; | |
7ba29e2a NC |
1631 | fixup += sec->relax[i].size; |
1632 | } | |
7ba29e2a NC |
1633 | return fixup; |
1634 | } | |
1635 | ||
f23200ad ME |
1636 | /* Read-modify-write into the bfd, an immediate value into appropriate fields of |
1637 | a 32-bit instruction. */ | |
1638 | static void | |
1639 | microblaze_bfd_write_imm_value_32 (bfd *abfd, bfd_byte *bfd_addr, bfd_vma val) | |
1640 | { | |
1641 | unsigned long instr = bfd_get_32 (abfd, bfd_addr); | |
1642 | instr &= ~0x0000ffff; | |
1643 | instr |= (val & 0x0000ffff); | |
1644 | bfd_put_32 (abfd, instr, bfd_addr); | |
1645 | } | |
1646 | ||
1647 | /* Read-modify-write into the bfd, an immediate value into appropriate fields of | |
1648 | two consecutive 32-bit instructions. */ | |
1649 | static void | |
1650 | microblaze_bfd_write_imm_value_64 (bfd *abfd, bfd_byte *bfd_addr, bfd_vma val) | |
1651 | { | |
1652 | unsigned long instr_hi; | |
1653 | unsigned long instr_lo; | |
1654 | ||
1655 | instr_hi = bfd_get_32 (abfd, bfd_addr); | |
1656 | instr_hi &= ~0x0000ffff; | |
1657 | instr_hi |= ((val >> 16) & 0x0000ffff); | |
1658 | bfd_put_32 (abfd, instr_hi, bfd_addr); | |
1659 | ||
1660 | instr_lo = bfd_get_32 (abfd, bfd_addr + INST_WORD_SIZE); | |
1661 | instr_lo &= ~0x0000ffff; | |
1662 | instr_lo |= (val & 0x0000ffff); | |
1663 | bfd_put_32 (abfd, instr_lo, bfd_addr + INST_WORD_SIZE); | |
1664 | } | |
1665 | ||
7ba29e2a NC |
1666 | static bfd_boolean |
1667 | microblaze_elf_relax_section (bfd *abfd, | |
1668 | asection *sec, | |
1669 | struct bfd_link_info *link_info, | |
1670 | bfd_boolean *again) | |
1671 | { | |
1672 | Elf_Internal_Shdr *symtab_hdr; | |
1673 | Elf_Internal_Rela *internal_relocs; | |
1674 | Elf_Internal_Rela *free_relocs = NULL; | |
1675 | Elf_Internal_Rela *irel, *irelend; | |
1676 | bfd_byte *contents = NULL; | |
1677 | bfd_byte *free_contents = NULL; | |
1678 | int rel_count; | |
1679 | unsigned int shndx; | |
91d6fa6a | 1680 | int i, sym_index; |
7ba29e2a NC |
1681 | asection *o; |
1682 | struct elf_link_hash_entry *sym_hash; | |
1683 | Elf_Internal_Sym *isymbuf, *isymend; | |
1684 | Elf_Internal_Sym *isym; | |
1685 | int symcount; | |
1686 | int offset; | |
1687 | bfd_vma src, dest; | |
1688 | ||
1689 | /* We only do this once per section. We may be able to delete some code | |
1690 | by running multiple passes, but it is not worth it. */ | |
1691 | *again = FALSE; | |
1692 | ||
1693 | /* Only do this for a text section. */ | |
0e1862bb | 1694 | if (bfd_link_relocatable (link_info) |
7ba29e2a | 1695 | || (sec->flags & SEC_RELOC) == 0 |
f23200ad ME |
1696 | || (sec->reloc_count == 0) |
1697 | || (sec->flags & SEC_CODE) == 0) | |
7ba29e2a NC |
1698 | return TRUE; |
1699 | ||
1700 | BFD_ASSERT ((sec->size > 0) || (sec->rawsize > 0)); | |
1701 | ||
1702 | /* If this is the first time we have been called for this section, | |
1703 | initialize the cooked size. */ | |
1704 | if (sec->size == 0) | |
1705 | sec->size = sec->rawsize; | |
1706 | ||
1707 | /* Get symbols for this section. */ | |
1708 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1709 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1710 | symcount = symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
1711 | if (isymbuf == NULL) | |
1712 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, symcount, | |
1713 | 0, NULL, NULL, NULL); | |
1714 | BFD_ASSERT (isymbuf != NULL); | |
1715 | ||
91d6fa6a | 1716 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, link_info->keep_memory); |
7ba29e2a NC |
1717 | if (internal_relocs == NULL) |
1718 | goto error_return; | |
1719 | if (! link_info->keep_memory) | |
1720 | free_relocs = internal_relocs; | |
1721 | ||
1722 | sec->relax = (struct relax_table *) bfd_malloc ((sec->reloc_count + 1) | |
1723 | * sizeof (struct relax_table)); | |
1724 | if (sec->relax == NULL) | |
1725 | goto error_return; | |
1726 | sec->relax_count = 0; | |
1727 | ||
1728 | irelend = internal_relocs + sec->reloc_count; | |
1729 | rel_count = 0; | |
1730 | for (irel = internal_relocs; irel < irelend; irel++, rel_count++) | |
1731 | { | |
1732 | bfd_vma symval; | |
1733 | if ((ELF32_R_TYPE (irel->r_info) != (int) R_MICROBLAZE_64_PCREL) | |
1734 | && (ELF32_R_TYPE (irel->r_info) != (int) R_MICROBLAZE_64 )) | |
1735 | continue; /* Can't delete this reloc. */ | |
1736 | ||
1737 | /* Get the section contents. */ | |
1738 | if (contents == NULL) | |
1739 | { | |
1740 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
1741 | contents = elf_section_data (sec)->this_hdr.contents; | |
1742 | else | |
1743 | { | |
1744 | contents = (bfd_byte *) bfd_malloc (sec->size); | |
1745 | if (contents == NULL) | |
1746 | goto error_return; | |
1747 | free_contents = contents; | |
1748 | ||
1749 | if (!bfd_get_section_contents (abfd, sec, contents, | |
1750 | (file_ptr) 0, sec->size)) | |
1751 | goto error_return; | |
1752 | elf_section_data (sec)->this_hdr.contents = contents; | |
1753 | } | |
1754 | } | |
1755 | ||
1756 | /* Get the value of the symbol referred to by the reloc. */ | |
1757 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
1758 | { | |
1759 | /* A local symbol. */ | |
7ba29e2a NC |
1760 | asection *sym_sec; |
1761 | ||
1762 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
1763 | if (isym->st_shndx == SHN_UNDEF) | |
1764 | sym_sec = bfd_und_section_ptr; | |
1765 | else if (isym->st_shndx == SHN_ABS) | |
1766 | sym_sec = bfd_abs_section_ptr; | |
1767 | else if (isym->st_shndx == SHN_COMMON) | |
1768 | sym_sec = bfd_com_section_ptr; | |
1769 | else | |
1770 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
1771 | ||
1772 | symval = _bfd_elf_rela_local_sym (abfd, isym, &sym_sec, irel); | |
1773 | } | |
1774 | else | |
1775 | { | |
1776 | unsigned long indx; | |
1777 | struct elf_link_hash_entry *h; | |
1778 | ||
1779 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
1780 | h = elf_sym_hashes (abfd)[indx]; | |
1781 | BFD_ASSERT (h != NULL); | |
1782 | ||
1783 | if (h->root.type != bfd_link_hash_defined | |
1784 | && h->root.type != bfd_link_hash_defweak) | |
1785 | /* This appears to be a reference to an undefined | |
1786 | symbol. Just ignore it--it will be caught by the | |
1787 | regular reloc processing. */ | |
1788 | continue; | |
1789 | ||
1790 | symval = (h->root.u.def.value | |
1791 | + h->root.u.def.section->output_section->vma | |
1792 | + h->root.u.def.section->output_offset); | |
1793 | } | |
1794 | ||
1795 | /* If this is a PC-relative reloc, subtract the instr offset from | |
1796 | the symbol value. */ | |
1797 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MICROBLAZE_64_PCREL) | |
1798 | { | |
1799 | symval = symval + irel->r_addend | |
1800 | - (irel->r_offset | |
1801 | + sec->output_section->vma | |
1802 | + sec->output_offset); | |
1803 | } | |
1804 | else | |
1805 | symval += irel->r_addend; | |
1806 | ||
1807 | if ((symval & 0xffff8000) == 0 | |
1808 | || (symval & 0xffff8000) == 0xffff8000) | |
1809 | { | |
1810 | /* We can delete this instruction. */ | |
1811 | sec->relax[sec->relax_count].addr = irel->r_offset; | |
1812 | sec->relax[sec->relax_count].size = INST_WORD_SIZE; | |
1813 | sec->relax_count++; | |
1814 | ||
1815 | /* Rewrite relocation type. */ | |
1816 | switch ((enum elf_microblaze_reloc_type) ELF32_R_TYPE (irel->r_info)) | |
1817 | { | |
1818 | case R_MICROBLAZE_64_PCREL: | |
1819 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1820 | (int) R_MICROBLAZE_32_PCREL_LO); | |
1821 | break; | |
1822 | case R_MICROBLAZE_64: | |
1823 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1824 | (int) R_MICROBLAZE_32_LO); | |
1825 | break; | |
1826 | default: | |
1827 | /* Cannot happen. */ | |
1828 | BFD_ASSERT (FALSE); | |
1829 | } | |
1830 | } | |
1831 | } /* Loop through all relocations. */ | |
1832 | ||
1833 | /* Loop through the relocs again, and see if anything needs to change. */ | |
1834 | if (sec->relax_count > 0) | |
1835 | { | |
1836 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
1837 | rel_count = 0; | |
1838 | sec->relax[sec->relax_count].addr = sec->size; | |
1839 | ||
1840 | for (irel = internal_relocs; irel < irelend; irel++, rel_count++) | |
1841 | { | |
1842 | bfd_vma nraddr; | |
1843 | ||
1844 | /* Get the new reloc address. */ | |
886e427f | 1845 | nraddr = irel->r_offset - calc_fixup (irel->r_offset, 0, sec); |
7ba29e2a NC |
1846 | switch ((enum elf_microblaze_reloc_type) ELF32_R_TYPE (irel->r_info)) |
1847 | { | |
1848 | default: | |
1849 | break; | |
1850 | case R_MICROBLAZE_64_PCREL: | |
1851 | break; | |
1852 | case R_MICROBLAZE_64: | |
1853 | case R_MICROBLAZE_32_LO: | |
1854 | /* If this reloc is against a symbol defined in this | |
1855 | section, we must check the addend to see it will put the value in | |
1856 | range to be adjusted, and hence must be changed. */ | |
1857 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
1858 | { | |
7ba29e2a NC |
1859 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
1860 | /* Only handle relocs against .text. */ | |
1861 | if (isym->st_shndx == shndx | |
1862 | && ELF32_ST_TYPE (isym->st_info) == STT_SECTION) | |
886e427f | 1863 | irel->r_addend -= calc_fixup (irel->r_addend, 0, sec); |
7ba29e2a NC |
1864 | } |
1865 | break; | |
1866 | case R_MICROBLAZE_NONE: | |
1867 | { | |
1868 | /* This was a PC-relative instruction that was | |
1869 | completely resolved. */ | |
1870 | int sfix, efix; | |
1871 | bfd_vma target_address; | |
1872 | target_address = irel->r_addend + irel->r_offset; | |
886e427f ME |
1873 | sfix = calc_fixup (irel->r_offset, 0, sec); |
1874 | efix = calc_fixup (target_address, 0, sec); | |
7ba29e2a NC |
1875 | irel->r_addend -= (efix - sfix); |
1876 | /* Should use HOWTO. */ | |
f23200ad ME |
1877 | microblaze_bfd_write_imm_value_32 (abfd, contents + irel->r_offset, |
1878 | irel->r_addend); | |
7ba29e2a NC |
1879 | } |
1880 | break; | |
1881 | case R_MICROBLAZE_64_NONE: | |
1882 | { | |
1883 | /* This was a PC-relative 64-bit instruction that was | |
1884 | completely resolved. */ | |
1885 | int sfix, efix; | |
1886 | bfd_vma target_address; | |
1887 | target_address = irel->r_addend + irel->r_offset + INST_WORD_SIZE; | |
886e427f ME |
1888 | sfix = calc_fixup (irel->r_offset + INST_WORD_SIZE, 0, sec); |
1889 | efix = calc_fixup (target_address, 0, sec); | |
7ba29e2a | 1890 | irel->r_addend -= (efix - sfix); |
f23200ad ME |
1891 | microblaze_bfd_write_imm_value_32 (abfd, contents + irel->r_offset |
1892 | + INST_WORD_SIZE, irel->r_addend); | |
7ba29e2a NC |
1893 | } |
1894 | break; | |
1895 | } | |
1896 | irel->r_offset = nraddr; | |
1897 | } /* Change all relocs in this section. */ | |
1898 | ||
1899 | /* Look through all other sections. */ | |
1900 | for (o = abfd->sections; o != NULL; o = o->next) | |
1901 | { | |
91d6fa6a | 1902 | Elf_Internal_Rela *irelocs; |
7ba29e2a NC |
1903 | Elf_Internal_Rela *irelscan, *irelscanend; |
1904 | bfd_byte *ocontents; | |
1905 | ||
1906 | if (o == sec | |
1907 | || (o->flags & SEC_RELOC) == 0 | |
1908 | || o->reloc_count == 0) | |
1909 | continue; | |
1910 | ||
1911 | /* We always cache the relocs. Perhaps, if info->keep_memory is | |
1912 | FALSE, we should free them, if we are permitted to. */ | |
1913 | ||
91d6fa6a NC |
1914 | irelocs = _bfd_elf_link_read_relocs (abfd, o, NULL, NULL, TRUE); |
1915 | if (irelocs == NULL) | |
7ba29e2a NC |
1916 | goto error_return; |
1917 | ||
1918 | ocontents = NULL; | |
91d6fa6a NC |
1919 | irelscanend = irelocs + o->reloc_count; |
1920 | for (irelscan = irelocs; irelscan < irelscanend; irelscan++) | |
7ba29e2a NC |
1921 | { |
1922 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32) | |
1923 | { | |
1924 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
1925 | ||
1926 | /* Look at the reloc only if the value has been resolved. */ | |
1927 | if (isym->st_shndx == shndx | |
1928 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
1929 | { | |
1930 | if (ocontents == NULL) | |
1931 | { | |
1932 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1933 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1934 | else | |
1935 | { | |
1936 | /* We always cache the section contents. | |
1937 | Perhaps, if info->keep_memory is FALSE, we | |
1938 | should free them, if we are permitted to. */ | |
1939 | if (o->rawsize == 0) | |
1940 | o->rawsize = o->size; | |
1941 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
1942 | if (ocontents == NULL) | |
1943 | goto error_return; | |
1944 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
1945 | (file_ptr) 0, | |
1946 | o->rawsize)) | |
1947 | goto error_return; | |
1948 | elf_section_data (o)->this_hdr.contents = ocontents; | |
1949 | } | |
1950 | ||
1951 | } | |
886e427f | 1952 | irelscan->r_addend -= calc_fixup (irelscan->r_addend, 0, sec); |
7ba29e2a NC |
1953 | } |
1954 | else if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32_SYM_OP_SYM) | |
1955 | { | |
1956 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
1957 | ||
1958 | /* Look at the reloc only if the value has been resolved. */ | |
1959 | if (ocontents == NULL) | |
1960 | { | |
1961 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1962 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1963 | else | |
1964 | { | |
1965 | /* We always cache the section contents. | |
1966 | Perhaps, if info->keep_memory is FALSE, we | |
1967 | should free them, if we are permitted to. */ | |
1968 | ||
1969 | if (o->rawsize == 0) | |
1970 | o->rawsize = o->size; | |
1971 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
1972 | if (ocontents == NULL) | |
1973 | goto error_return; | |
1974 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
1975 | (file_ptr) 0, | |
1976 | o->rawsize)) | |
1977 | goto error_return; | |
1978 | elf_section_data (o)->this_hdr.contents = ocontents; | |
1979 | } | |
1980 | } | |
1981 | irelscan->r_addend -= calc_fixup (irel->r_addend | |
1982 | + isym->st_value, | |
886e427f | 1983 | 0, |
7ba29e2a NC |
1984 | sec); |
1985 | } | |
1986 | } | |
1987 | else if ((ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32_PCREL_LO) | |
1988 | || (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32_LO)) | |
1989 | { | |
1990 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
1991 | ||
1992 | /* Look at the reloc only if the value has been resolved. */ | |
1993 | if (isym->st_shndx == shndx | |
1994 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
1995 | { | |
1996 | bfd_vma immediate; | |
1997 | bfd_vma target_address; | |
1998 | ||
1999 | if (ocontents == NULL) | |
2000 | { | |
2001 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
2002 | ocontents = elf_section_data (o)->this_hdr.contents; | |
2003 | else | |
2004 | { | |
2005 | /* We always cache the section contents. | |
2006 | Perhaps, if info->keep_memory is FALSE, we | |
2007 | should free them, if we are permitted to. */ | |
2008 | if (o->rawsize == 0) | |
2009 | o->rawsize = o->size; | |
2010 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
2011 | if (ocontents == NULL) | |
2012 | goto error_return; | |
2013 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
2014 | (file_ptr) 0, | |
2015 | o->rawsize)) | |
2016 | goto error_return; | |
2017 | elf_section_data (o)->this_hdr.contents = ocontents; | |
2018 | } | |
2019 | } | |
2020 | ||
f23200ad ME |
2021 | unsigned long instr = bfd_get_32 (abfd, ocontents + irelscan->r_offset); |
2022 | immediate = instr & 0x0000ffff; | |
7ba29e2a | 2023 | target_address = immediate; |
886e427f | 2024 | offset = calc_fixup (target_address, 0, sec); |
7ba29e2a NC |
2025 | immediate -= offset; |
2026 | irelscan->r_addend -= offset; | |
f23200ad ME |
2027 | microblaze_bfd_write_imm_value_32 (abfd, ocontents + irelscan->r_offset, |
2028 | irelscan->r_addend); | |
7ba29e2a NC |
2029 | } |
2030 | } | |
2031 | ||
2032 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_64) | |
2033 | { | |
2034 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
2035 | ||
2036 | /* Look at the reloc only if the value has been resolved. */ | |
2037 | if (isym->st_shndx == shndx | |
2038 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
2039 | { | |
2040 | bfd_vma immediate; | |
2041 | ||
2042 | if (ocontents == NULL) | |
2043 | { | |
2044 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
2045 | ocontents = elf_section_data (o)->this_hdr.contents; | |
2046 | else | |
2047 | { | |
2048 | /* We always cache the section contents. | |
2049 | Perhaps, if info->keep_memory is FALSE, we | |
2050 | should free them, if we are permitted to. */ | |
2051 | ||
2052 | if (o->rawsize == 0) | |
2053 | o->rawsize = o->size; | |
2054 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
2055 | if (ocontents == NULL) | |
2056 | goto error_return; | |
2057 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
2058 | (file_ptr) 0, | |
2059 | o->rawsize)) | |
2060 | goto error_return; | |
2061 | elf_section_data (o)->this_hdr.contents = ocontents; | |
2062 | } | |
2063 | } | |
f23200ad ME |
2064 | unsigned long instr_hi = bfd_get_32 (abfd, ocontents |
2065 | + irelscan->r_offset); | |
2066 | unsigned long instr_lo = bfd_get_32 (abfd, ocontents | |
2067 | + irelscan->r_offset | |
2068 | + INST_WORD_SIZE); | |
2069 | immediate = (instr_hi & 0x0000ffff) << 16; | |
2070 | immediate |= (instr_lo & 0x0000ffff); | |
886e427f | 2071 | offset = calc_fixup (irelscan->r_addend, 0, sec); |
7ba29e2a NC |
2072 | immediate -= offset; |
2073 | irelscan->r_addend -= offset; | |
2074 | } | |
2075 | } | |
2076 | else if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_64_PCREL) | |
2077 | { | |
2078 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
2079 | ||
2080 | /* Look at the reloc only if the value has been resolved. */ | |
2081 | if (isym->st_shndx == shndx | |
2082 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
2083 | { | |
2084 | bfd_vma immediate; | |
2085 | bfd_vma target_address; | |
2086 | ||
2087 | if (ocontents == NULL) | |
2088 | { | |
2089 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
2090 | ocontents = elf_section_data (o)->this_hdr.contents; | |
2091 | else | |
2092 | { | |
2093 | /* We always cache the section contents. | |
2094 | Perhaps, if info->keep_memory is FALSE, we | |
2095 | should free them, if we are permitted to. */ | |
2096 | if (o->rawsize == 0) | |
2097 | o->rawsize = o->size; | |
2098 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
2099 | if (ocontents == NULL) | |
2100 | goto error_return; | |
2101 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
2102 | (file_ptr) 0, | |
2103 | o->rawsize)) | |
2104 | goto error_return; | |
2105 | elf_section_data (o)->this_hdr.contents = ocontents; | |
2106 | } | |
2107 | } | |
f23200ad ME |
2108 | unsigned long instr_hi = bfd_get_32 (abfd, ocontents |
2109 | + irelscan->r_offset); | |
2110 | unsigned long instr_lo = bfd_get_32 (abfd, ocontents | |
2111 | + irelscan->r_offset | |
2112 | + INST_WORD_SIZE); | |
2113 | immediate = (instr_hi & 0x0000ffff) << 16; | |
2114 | immediate |= (instr_lo & 0x0000ffff); | |
7ba29e2a | 2115 | target_address = immediate; |
886e427f | 2116 | offset = calc_fixup (target_address, 0, sec); |
7ba29e2a NC |
2117 | immediate -= offset; |
2118 | irelscan->r_addend -= offset; | |
f23200ad ME |
2119 | microblaze_bfd_write_imm_value_64 (abfd, ocontents |
2120 | + irelscan->r_offset, immediate); | |
7ba29e2a NC |
2121 | } |
2122 | } | |
2123 | } | |
2124 | } | |
2125 | ||
2126 | /* Adjust the local symbols defined in this section. */ | |
2127 | isymend = isymbuf + symtab_hdr->sh_info; | |
2128 | for (isym = isymbuf; isym < isymend; isym++) | |
2129 | { | |
2130 | if (isym->st_shndx == shndx) | |
886e427f ME |
2131 | { |
2132 | isym->st_value -= calc_fixup (isym->st_value, 0, sec); | |
2133 | if (isym->st_size) | |
2134 | isym->st_size -= calc_fixup (isym->st_value, isym->st_size, sec); | |
2135 | } | |
7ba29e2a NC |
2136 | } |
2137 | ||
2138 | /* Now adjust the global symbols defined in this section. */ | |
2139 | isym = isymbuf + symtab_hdr->sh_info; | |
886e427f ME |
2140 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)) - symtab_hdr->sh_info; |
2141 | for (sym_index = 0; sym_index < symcount; sym_index++) | |
7ba29e2a | 2142 | { |
91d6fa6a | 2143 | sym_hash = elf_sym_hashes (abfd)[sym_index]; |
886e427f | 2144 | if ((sym_hash->root.type == bfd_link_hash_defined |
7ba29e2a NC |
2145 | || sym_hash->root.type == bfd_link_hash_defweak) |
2146 | && sym_hash->root.u.def.section == sec) | |
886e427f ME |
2147 | { |
2148 | sym_hash->root.u.def.value -= calc_fixup (sym_hash->root.u.def.value, | |
2149 | 0, sec); | |
2150 | if (sym_hash->size) | |
2151 | sym_hash->size -= calc_fixup (sym_hash->root.u.def.value, | |
2152 | sym_hash->size, sec); | |
2153 | } | |
2154 | } | |
7ba29e2a NC |
2155 | |
2156 | /* Physically move the code and change the cooked size. */ | |
2157 | dest = sec->relax[0].addr; | |
2158 | for (i = 0; i < sec->relax_count; i++) | |
2159 | { | |
2160 | int len; | |
2161 | src = sec->relax[i].addr + sec->relax[i].size; | |
2162 | len = sec->relax[i+1].addr - sec->relax[i].addr - sec->relax[i].size; | |
2163 | ||
2164 | memmove (contents + dest, contents + src, len); | |
2165 | sec->size -= sec->relax[i].size; | |
2166 | dest += len; | |
2167 | } | |
2168 | ||
2169 | elf_section_data (sec)->relocs = internal_relocs; | |
2170 | free_relocs = NULL; | |
2171 | ||
2172 | elf_section_data (sec)->this_hdr.contents = contents; | |
2173 | free_contents = NULL; | |
2174 | ||
2175 | symtab_hdr->contents = (bfd_byte *) isymbuf; | |
2176 | } | |
2177 | ||
2178 | if (free_relocs != NULL) | |
2179 | { | |
2180 | free (free_relocs); | |
2181 | free_relocs = NULL; | |
2182 | } | |
2183 | ||
2184 | if (free_contents != NULL) | |
2185 | { | |
2186 | if (!link_info->keep_memory) | |
2187 | free (free_contents); | |
2188 | else | |
2189 | /* Cache the section contents for elf_link_input_bfd. */ | |
2190 | elf_section_data (sec)->this_hdr.contents = contents; | |
2191 | free_contents = NULL; | |
2192 | } | |
2193 | ||
2194 | if (sec->relax_count == 0) | |
2195 | { | |
f23200ad | 2196 | *again = FALSE; |
7ba29e2a NC |
2197 | free (sec->relax); |
2198 | sec->relax = NULL; | |
2199 | } | |
f23200ad ME |
2200 | else |
2201 | *again = TRUE; | |
7ba29e2a NC |
2202 | return TRUE; |
2203 | ||
2204 | error_return: | |
2205 | if (free_relocs != NULL) | |
2206 | free (free_relocs); | |
2207 | if (free_contents != NULL) | |
2208 | free (free_contents); | |
2209 | if (sec->relax != NULL) | |
2210 | { | |
2211 | free (sec->relax); | |
2212 | sec->relax = NULL; | |
2213 | sec->relax_count = 0; | |
2214 | } | |
2215 | return FALSE; | |
2216 | } | |
2217 | ||
2218 | /* Return the section that should be marked against GC for a given | |
2219 | relocation. */ | |
2220 | ||
2221 | static asection * | |
2222 | microblaze_elf_gc_mark_hook (asection *sec, | |
fb34365b | 2223 | struct bfd_link_info * info, |
7ba29e2a NC |
2224 | Elf_Internal_Rela * rel, |
2225 | struct elf_link_hash_entry * h, | |
2226 | Elf_Internal_Sym * sym) | |
2227 | { | |
2228 | if (h != NULL) | |
fb34365b AM |
2229 | switch (ELF32_R_TYPE (rel->r_info)) |
2230 | { | |
2231 | case R_MICROBLAZE_GNU_VTINHERIT: | |
2232 | case R_MICROBLAZE_GNU_VTENTRY: | |
2233 | return NULL; | |
2234 | } | |
2235 | ||
2236 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
7ba29e2a NC |
2237 | } |
2238 | ||
2239 | /* Update the got entry reference counts for the section being removed. */ | |
2240 | ||
2241 | static bfd_boolean | |
2242 | microblaze_elf_gc_sweep_hook (bfd * abfd ATTRIBUTE_UNUSED, | |
2243 | struct bfd_link_info * info ATTRIBUTE_UNUSED, | |
2244 | asection * sec ATTRIBUTE_UNUSED, | |
2245 | const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED) | |
2246 | { | |
2247 | return TRUE; | |
2248 | } | |
2249 | ||
2250 | /* PIC support. */ | |
2251 | ||
2252 | #define PLT_ENTRY_SIZE 16 | |
2253 | ||
2254 | #define PLT_ENTRY_WORD_0 0xb0000000 /* "imm 0". */ | |
2255 | #define PLT_ENTRY_WORD_1 0xe9940000 /* "lwi r12,r20,0" - relocated to lwi r12,r20,func@GOT. */ | |
2256 | #define PLT_ENTRY_WORD_1_NOPIC 0xe9800000 /* "lwi r12,r0,0" - non-PIC object. */ | |
2257 | #define PLT_ENTRY_WORD_2 0x98186000 /* "brad r12". */ | |
2258 | #define PLT_ENTRY_WORD_3 0x80000000 /* "nop". */ | |
2259 | ||
2260 | /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up | |
2261 | shortcuts to them in our hash table. */ | |
2262 | ||
2263 | static bfd_boolean | |
2264 | create_got_section (bfd *dynobj, struct bfd_link_info *info) | |
2265 | { | |
2266 | struct elf32_mb_link_hash_table *htab; | |
2267 | ||
2268 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
2269 | return FALSE; | |
2270 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2271 | if (htab == NULL) |
2272 | return FALSE; | |
2273 | ||
3d4d4302 AM |
2274 | htab->sgot = bfd_get_linker_section (dynobj, ".got"); |
2275 | htab->sgotplt = bfd_get_linker_section (dynobj, ".got.plt"); | |
7ba29e2a NC |
2276 | if (!htab->sgot || !htab->sgotplt) |
2277 | return FALSE; | |
2278 | ||
3d4d4302 AM |
2279 | if ((htab->srelgot = bfd_get_linker_section (dynobj, ".rela.got")) == NULL) |
2280 | htab->srelgot = bfd_make_section_anyway (dynobj, ".rela.got"); | |
7ba29e2a NC |
2281 | if (htab->srelgot == NULL |
2282 | || ! bfd_set_section_flags (dynobj, htab->srelgot, SEC_ALLOC | |
2283 | | SEC_LOAD | |
2284 | | SEC_HAS_CONTENTS | |
2285 | | SEC_IN_MEMORY | |
2286 | | SEC_LINKER_CREATED | |
2287 | | SEC_READONLY) | |
2288 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) | |
2289 | return FALSE; | |
2290 | return TRUE; | |
2291 | } | |
2292 | ||
69b06cc8 ME |
2293 | static bfd_boolean |
2294 | update_local_sym_info (bfd *abfd, | |
2295 | Elf_Internal_Shdr *symtab_hdr, | |
2296 | unsigned long r_symndx, | |
2297 | unsigned int tls_type) | |
2298 | { | |
2299 | bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd); | |
2300 | unsigned char *local_got_tls_masks; | |
2301 | ||
2302 | if (local_got_refcounts == NULL) | |
2303 | { | |
2304 | bfd_size_type size = symtab_hdr->sh_info; | |
2305 | ||
2306 | size *= (sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks)); | |
2307 | local_got_refcounts = bfd_zalloc (abfd, size); | |
2308 | if (local_got_refcounts == NULL) | |
2309 | return FALSE; | |
2310 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
2311 | } | |
2312 | ||
2313 | local_got_tls_masks = | |
2314 | (unsigned char *) (local_got_refcounts + symtab_hdr->sh_info); | |
2315 | local_got_tls_masks[r_symndx] |= tls_type; | |
2316 | local_got_refcounts[r_symndx] += 1; | |
2317 | ||
2318 | return TRUE; | |
2319 | } | |
7ba29e2a NC |
2320 | /* Look through the relocs for a section during the first phase. */ |
2321 | ||
2322 | static bfd_boolean | |
2323 | microblaze_elf_check_relocs (bfd * abfd, | |
2324 | struct bfd_link_info * info, | |
2325 | asection * sec, | |
2326 | const Elf_Internal_Rela * relocs) | |
2327 | { | |
2328 | Elf_Internal_Shdr * symtab_hdr; | |
2329 | struct elf_link_hash_entry ** sym_hashes; | |
2330 | struct elf_link_hash_entry ** sym_hashes_end; | |
2331 | const Elf_Internal_Rela * rel; | |
2332 | const Elf_Internal_Rela * rel_end; | |
2333 | struct elf32_mb_link_hash_table *htab; | |
7ba29e2a NC |
2334 | asection *sreloc = NULL; |
2335 | ||
0e1862bb | 2336 | if (bfd_link_relocatable (info)) |
7ba29e2a NC |
2337 | return TRUE; |
2338 | ||
2339 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2340 | if (htab == NULL) |
2341 | return FALSE; | |
2342 | ||
7ba29e2a NC |
2343 | symtab_hdr = & elf_tdata (abfd)->symtab_hdr; |
2344 | sym_hashes = elf_sym_hashes (abfd); | |
2345 | sym_hashes_end = sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
2346 | if (!elf_bad_symtab (abfd)) | |
2347 | sym_hashes_end -= symtab_hdr->sh_info; | |
2348 | ||
2349 | rel_end = relocs + sec->reloc_count; | |
2350 | ||
2351 | for (rel = relocs; rel < rel_end; rel++) | |
2352 | { | |
2353 | unsigned int r_type; | |
2354 | struct elf_link_hash_entry * h; | |
2355 | unsigned long r_symndx; | |
69b06cc8 | 2356 | unsigned char tls_type = 0; |
7ba29e2a NC |
2357 | |
2358 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2359 | r_type = ELF32_R_TYPE (rel->r_info); | |
2360 | ||
2361 | if (r_symndx < symtab_hdr->sh_info) | |
2362 | h = NULL; | |
2363 | else | |
81fbe831 AM |
2364 | { |
2365 | h = sym_hashes [r_symndx - symtab_hdr->sh_info]; | |
2366 | ||
2367 | /* PR15323, ref flags aren't set for references in the same | |
2368 | object. */ | |
2369 | h->root.non_ir_ref = 1; | |
2370 | } | |
7ba29e2a NC |
2371 | |
2372 | switch (r_type) | |
2373 | { | |
2374 | /* This relocation describes the C++ object vtable hierarchy. | |
2375 | Reconstruct it for later use during GC. */ | |
2376 | case R_MICROBLAZE_GNU_VTINHERIT: | |
2377 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
2378 | return FALSE; | |
2379 | break; | |
2380 | ||
2381 | /* This relocation describes which C++ vtable entries are actually | |
2382 | used. Record for later use during GC. */ | |
2383 | case R_MICROBLAZE_GNU_VTENTRY: | |
2384 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
2385 | return FALSE; | |
2386 | break; | |
2387 | ||
2388 | /* This relocation requires .plt entry. */ | |
2389 | case R_MICROBLAZE_PLT_64: | |
2390 | if (h != NULL) | |
2391 | { | |
2392 | h->needs_plt = 1; | |
2393 | h->plt.refcount += 1; | |
2394 | } | |
2395 | break; | |
2396 | ||
2397 | /* This relocation requires .got entry. */ | |
69b06cc8 ME |
2398 | case R_MICROBLAZE_TLSGD: |
2399 | tls_type |= (TLS_TLS | TLS_GD); | |
2400 | goto dogottls; | |
2401 | case R_MICROBLAZE_TLSLD: | |
2402 | tls_type |= (TLS_TLS | TLS_LD); | |
2403 | dogottls: | |
2404 | sec->has_tls_reloc = 1; | |
7ba29e2a NC |
2405 | case R_MICROBLAZE_GOT_64: |
2406 | if (htab->sgot == NULL) | |
2407 | { | |
2408 | if (htab->elf.dynobj == NULL) | |
2409 | htab->elf.dynobj = abfd; | |
2410 | if (!create_got_section (htab->elf.dynobj, info)) | |
2411 | return FALSE; | |
2412 | } | |
2413 | if (h != NULL) | |
2414 | { | |
2415 | h->got.refcount += 1; | |
69b06cc8 | 2416 | elf32_mb_hash_entry (h)->tls_mask |= tls_type; |
7ba29e2a NC |
2417 | } |
2418 | else | |
2419 | { | |
69b06cc8 ME |
2420 | if (! update_local_sym_info(abfd, symtab_hdr, r_symndx, tls_type) ) |
2421 | return FALSE; | |
7ba29e2a NC |
2422 | } |
2423 | break; | |
2424 | ||
2425 | case R_MICROBLAZE_64: | |
2426 | case R_MICROBLAZE_64_PCREL: | |
2427 | case R_MICROBLAZE_32: | |
2428 | { | |
0e1862bb | 2429 | if (h != NULL && !bfd_link_pic (info)) |
7ba29e2a NC |
2430 | { |
2431 | /* we may need a copy reloc. */ | |
2432 | h->non_got_ref = 1; | |
2433 | ||
2434 | /* we may also need a .plt entry. */ | |
2435 | h->plt.refcount += 1; | |
2436 | if (ELF32_R_TYPE (rel->r_info) != R_MICROBLAZE_64_PCREL) | |
2437 | h->pointer_equality_needed = 1; | |
2438 | } | |
2439 | ||
2440 | ||
2441 | /* If we are creating a shared library, and this is a reloc | |
2442 | against a global symbol, or a non PC relative reloc | |
2443 | against a local symbol, then we need to copy the reloc | |
2444 | into the shared library. However, if we are linking with | |
2445 | -Bsymbolic, we do not need to copy a reloc against a | |
2446 | global symbol which is defined in an object we are | |
2447 | including in the link (i.e., DEF_REGULAR is set). At | |
2448 | this point we have not seen all the input files, so it is | |
2449 | possible that DEF_REGULAR is not set now but will be set | |
2450 | later (it is never cleared). In case of a weak definition, | |
2451 | DEF_REGULAR may be cleared later by a strong definition in | |
2452 | a shared library. We account for that possibility below by | |
2453 | storing information in the relocs_copied field of the hash | |
2454 | table entry. A similar situation occurs when creating | |
2455 | shared libraries and symbol visibility changes render the | |
2456 | symbol local. | |
2457 | ||
2458 | If on the other hand, we are creating an executable, we | |
2459 | may need to keep relocations for symbols satisfied by a | |
2460 | dynamic library if we manage to avoid copy relocs for the | |
2461 | symbol. */ | |
2462 | ||
0e1862bb | 2463 | if ((bfd_link_pic (info) |
7ba29e2a NC |
2464 | && (sec->flags & SEC_ALLOC) != 0 |
2465 | && (r_type != R_MICROBLAZE_64_PCREL | |
2466 | || (h != NULL | |
2467 | && (! info->symbolic | |
2468 | || h->root.type == bfd_link_hash_defweak | |
2469 | || !h->def_regular)))) | |
0e1862bb | 2470 | || (!bfd_link_pic (info) |
7ba29e2a NC |
2471 | && (sec->flags & SEC_ALLOC) != 0 |
2472 | && h != NULL | |
2473 | && (h->root.type == bfd_link_hash_defweak | |
2474 | || !h->def_regular))) | |
2475 | { | |
2476 | struct elf32_mb_dyn_relocs *p; | |
2477 | struct elf32_mb_dyn_relocs **head; | |
2478 | ||
2479 | /* When creating a shared object, we must copy these | |
2480 | relocs into the output file. We create a reloc | |
2481 | section in dynobj and make room for the reloc. */ | |
2482 | ||
2483 | if (sreloc == NULL) | |
2484 | { | |
7ba29e2a | 2485 | bfd *dynobj; |
7ba29e2a NC |
2486 | |
2487 | if (htab->elf.dynobj == NULL) | |
2488 | htab->elf.dynobj = abfd; | |
2489 | dynobj = htab->elf.dynobj; | |
2490 | ||
69b06cc8 ME |
2491 | sreloc = _bfd_elf_make_dynamic_reloc_section (sec, dynobj, |
2492 | 2, abfd, 1); | |
7ba29e2a | 2493 | if (sreloc == NULL) |
69b06cc8 | 2494 | return FALSE; |
7ba29e2a NC |
2495 | } |
2496 | ||
2497 | /* If this is a global symbol, we count the number of | |
2498 | relocations we need for this symbol. */ | |
2499 | if (h != NULL) | |
2500 | head = &((struct elf32_mb_link_hash_entry *) h)->dyn_relocs; | |
2501 | else | |
2502 | { | |
2503 | /* Track dynamic relocs needed for local syms too. | |
2504 | We really need local syms available to do this | |
2505 | easily. Oh well. */ | |
2506 | ||
2507 | asection *s; | |
2508 | Elf_Internal_Sym *isym; | |
918d9742 | 2509 | void *vpp; |
7ba29e2a NC |
2510 | |
2511 | isym = bfd_sym_from_r_symndx (&htab->sym_sec, | |
2512 | abfd, r_symndx); | |
2513 | if (isym == NULL) | |
2514 | return FALSE; | |
2515 | ||
2516 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
2517 | if (s == NULL) | |
2518 | return FALSE; | |
2519 | ||
918d9742 TT |
2520 | vpp = &elf_section_data (s)->local_dynrel; |
2521 | head = (struct elf32_mb_dyn_relocs **) vpp; | |
7ba29e2a NC |
2522 | } |
2523 | ||
2524 | p = *head; | |
2525 | if (p == NULL || p->sec != sec) | |
2526 | { | |
2527 | bfd_size_type amt = sizeof *p; | |
2528 | p = ((struct elf32_mb_dyn_relocs *) | |
2529 | bfd_alloc (htab->elf.dynobj, amt)); | |
2530 | if (p == NULL) | |
2531 | return FALSE; | |
2532 | p->next = *head; | |
2533 | *head = p; | |
2534 | p->sec = sec; | |
2535 | p->count = 0; | |
2536 | p->pc_count = 0; | |
2537 | } | |
2538 | ||
2539 | p->count += 1; | |
2540 | if (r_type == R_MICROBLAZE_64_PCREL) | |
2541 | p->pc_count += 1; | |
2542 | } | |
2543 | } | |
2544 | break; | |
2545 | } | |
2546 | } | |
2547 | ||
2548 | return TRUE; | |
2549 | } | |
2550 | ||
2551 | static bfd_boolean | |
2552 | microblaze_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) | |
2553 | { | |
2554 | struct elf32_mb_link_hash_table *htab; | |
2555 | ||
2556 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2557 | if (htab == NULL) |
2558 | return FALSE; | |
2559 | ||
7ba29e2a NC |
2560 | if (!htab->sgot && !create_got_section (dynobj, info)) |
2561 | return FALSE; | |
2562 | ||
2563 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
2564 | return FALSE; | |
2565 | ||
3d4d4302 AM |
2566 | htab->splt = bfd_get_linker_section (dynobj, ".plt"); |
2567 | htab->srelplt = bfd_get_linker_section (dynobj, ".rela.plt"); | |
2568 | htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss"); | |
0e1862bb | 2569 | if (!bfd_link_pic (info)) |
3d4d4302 | 2570 | htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss"); |
7ba29e2a NC |
2571 | |
2572 | if (!htab->splt || !htab->srelplt || !htab->sdynbss | |
0e1862bb | 2573 | || (!bfd_link_pic (info) && !htab->srelbss)) |
7ba29e2a NC |
2574 | abort (); |
2575 | ||
2576 | return TRUE; | |
2577 | } | |
2578 | ||
2579 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
2580 | ||
2581 | static void | |
2582 | microblaze_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
2583 | struct elf_link_hash_entry *dir, | |
2584 | struct elf_link_hash_entry *ind) | |
2585 | { | |
2586 | struct elf32_mb_link_hash_entry *edir, *eind; | |
2587 | ||
2588 | edir = (struct elf32_mb_link_hash_entry *) dir; | |
2589 | eind = (struct elf32_mb_link_hash_entry *) ind; | |
2590 | ||
2591 | if (eind->dyn_relocs != NULL) | |
2592 | { | |
2593 | if (edir->dyn_relocs != NULL) | |
2594 | { | |
2595 | struct elf32_mb_dyn_relocs **pp; | |
2596 | struct elf32_mb_dyn_relocs *p; | |
2597 | ||
2598 | if (ind->root.type == bfd_link_hash_indirect) | |
2599 | abort (); | |
2600 | ||
2601 | /* Add reloc counts against the weak sym to the strong sym | |
2602 | list. Merge any entries against the same section. */ | |
2603 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
2604 | { | |
2605 | struct elf32_mb_dyn_relocs *q; | |
2606 | ||
2607 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
2608 | if (q->sec == p->sec) | |
2609 | { | |
2610 | q->pc_count += p->pc_count; | |
2611 | q->count += p->count; | |
2612 | *pp = p->next; | |
2613 | break; | |
2614 | } | |
2615 | if (q == NULL) | |
2616 | pp = &p->next; | |
2617 | } | |
2618 | *pp = edir->dyn_relocs; | |
2619 | } | |
2620 | ||
2621 | edir->dyn_relocs = eind->dyn_relocs; | |
2622 | eind->dyn_relocs = NULL; | |
2623 | } | |
2624 | ||
69b06cc8 ME |
2625 | edir->tls_mask |= eind->tls_mask; |
2626 | ||
7ba29e2a NC |
2627 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
2628 | } | |
2629 | ||
2630 | static bfd_boolean | |
2631 | microblaze_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
2632 | struct elf_link_hash_entry *h) | |
2633 | { | |
2634 | struct elf32_mb_link_hash_table *htab; | |
2635 | struct elf32_mb_link_hash_entry * eh; | |
2636 | struct elf32_mb_dyn_relocs *p; | |
2637 | asection *sdynbss, *s; | |
2638 | unsigned int power_of_two; | |
2639 | bfd *dynobj; | |
2640 | ||
2641 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2642 | if (htab == NULL) |
2643 | return FALSE; | |
7ba29e2a NC |
2644 | |
2645 | /* If this is a function, put it in the procedure linkage table. We | |
2646 | will fill in the contents of the procedure linkage table later, | |
2647 | when we know the address of the .got section. */ | |
2648 | if (h->type == STT_FUNC | |
2649 | || h->needs_plt) | |
2650 | { | |
2651 | if (h->plt.refcount <= 0 | |
2652 | || SYMBOL_CALLS_LOCAL (info, h) | |
2653 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
2654 | && h->root.type == bfd_link_hash_undefweak)) | |
2655 | { | |
2656 | /* This case can occur if we saw a PLT reloc in an input | |
2657 | file, but the symbol was never referred to by a dynamic | |
2658 | object, or if all references were garbage collected. In | |
2659 | such a case, we don't actually need to build a procedure | |
2660 | linkage table, and we can just do a PC32 reloc instead. */ | |
2661 | h->plt.offset = (bfd_vma) -1; | |
2662 | h->needs_plt = 0; | |
2663 | } | |
2664 | ||
2665 | return TRUE; | |
2666 | } | |
2667 | else | |
2668 | /* It's possible that we incorrectly decided a .plt reloc was | |
2669 | needed for an R_MICROBLAZE_64_PCREL reloc to a non-function sym in | |
2670 | check_relocs. We can't decide accurately between function and | |
2671 | non-function syms in check-relocs; Objects loaded later in | |
2672 | the link may change h->type. So fix it now. */ | |
2673 | h->plt.offset = (bfd_vma) -1; | |
2674 | ||
2675 | /* If this is a weak symbol, and there is a real definition, the | |
2676 | processor independent code will have arranged for us to see the | |
2677 | real definition first, and we can just use the same value. */ | |
2678 | if (h->u.weakdef != NULL) | |
2679 | { | |
2680 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined | |
2681 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
2682 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
2683 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
2684 | return TRUE; | |
2685 | } | |
2686 | ||
2687 | /* This is a reference to a symbol defined by a dynamic object which | |
2688 | is not a function. */ | |
2689 | ||
2690 | /* If we are creating a shared library, we must presume that the | |
2691 | only references to the symbol are via the global offset table. | |
2692 | For such cases we need not do anything here; the relocations will | |
2693 | be handled correctly by relocate_section. */ | |
0e1862bb | 2694 | if (bfd_link_pic (info)) |
7ba29e2a NC |
2695 | return TRUE; |
2696 | ||
2697 | /* If there are no references to this symbol that do not use the | |
2698 | GOT, we don't need to generate a copy reloc. */ | |
2699 | if (!h->non_got_ref) | |
2700 | return TRUE; | |
2701 | ||
2702 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
2703 | if (info->nocopyreloc) | |
2704 | { | |
2705 | h->non_got_ref = 0; | |
2706 | return TRUE; | |
2707 | } | |
2708 | ||
2709 | eh = (struct elf32_mb_link_hash_entry *) h; | |
2710 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2711 | { | |
2712 | s = p->sec->output_section; | |
2713 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2714 | break; | |
2715 | } | |
2716 | ||
2717 | /* If we didn't find any dynamic relocs in read-only sections, then | |
2718 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
2719 | if (p == NULL) | |
2720 | { | |
2721 | h->non_got_ref = 0; | |
2722 | return TRUE; | |
2723 | } | |
2724 | ||
2725 | /* We must allocate the symbol in our .dynbss section, which will | |
2726 | become part of the .bss section of the executable. There will be | |
2727 | an entry for this symbol in the .dynsym section. The dynamic | |
2728 | object will contain position independent code, so all references | |
2729 | from the dynamic object to this symbol will go through the global | |
2730 | offset table. The dynamic linker will use the .dynsym entry to | |
2731 | determine the address it must put in the global offset table, so | |
2732 | both the dynamic object and the regular object will refer to the | |
2733 | same memory location for the variable. */ | |
2734 | ||
2735 | /* We must generate a R_MICROBLAZE_COPY reloc to tell the dynamic linker | |
2736 | to copy the initial value out of the dynamic object and into the | |
2737 | runtime process image. */ | |
2738 | dynobj = elf_hash_table (info)->dynobj; | |
2739 | BFD_ASSERT (dynobj != NULL); | |
2740 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
2741 | { | |
2742 | htab->srelbss->size += sizeof (Elf32_External_Rela); | |
2743 | h->needs_copy = 1; | |
2744 | } | |
2745 | ||
2746 | /* We need to figure out the alignment required for this symbol. I | |
2747 | have no idea how ELF linkers handle this. */ | |
2748 | power_of_two = bfd_log2 (h->size); | |
2749 | if (power_of_two > 3) | |
2750 | power_of_two = 3; | |
2751 | ||
2752 | sdynbss = htab->sdynbss; | |
2753 | /* Apply the required alignment. */ | |
2754 | sdynbss->size = BFD_ALIGN (sdynbss->size, (bfd_size_type) (1 << power_of_two)); | |
2755 | if (power_of_two > bfd_get_section_alignment (dynobj, sdynbss)) | |
2756 | { | |
2757 | if (! bfd_set_section_alignment (dynobj, sdynbss, power_of_two)) | |
2758 | return FALSE; | |
2759 | } | |
2760 | ||
2761 | /* Define the symbol as being at this point in the section. */ | |
2762 | h->root.u.def.section = sdynbss; | |
2763 | h->root.u.def.value = sdynbss->size; | |
2764 | ||
2765 | /* Increment the section size to make room for the symbol. */ | |
2766 | sdynbss->size += h->size; | |
2767 | return TRUE; | |
2768 | } | |
2769 | ||
2770 | /* Allocate space in .plt, .got and associated reloc sections for | |
2771 | dynamic relocs. */ | |
2772 | ||
2773 | static bfd_boolean | |
2774 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * dat) | |
2775 | { | |
2776 | struct bfd_link_info *info; | |
2777 | struct elf32_mb_link_hash_table *htab; | |
2778 | struct elf32_mb_link_hash_entry *eh; | |
2779 | struct elf32_mb_dyn_relocs *p; | |
2780 | ||
2781 | if (h->root.type == bfd_link_hash_indirect) | |
2782 | return TRUE; | |
2783 | ||
7ba29e2a NC |
2784 | info = (struct bfd_link_info *) dat; |
2785 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2786 | if (htab == NULL) |
2787 | return FALSE; | |
7ba29e2a NC |
2788 | |
2789 | if (htab->elf.dynamic_sections_created | |
2790 | && h->plt.refcount > 0) | |
2791 | { | |
2792 | /* Make sure this symbol is output as a dynamic symbol. | |
2793 | Undefined weak syms won't yet be marked as dynamic. */ | |
2794 | if (h->dynindx == -1 | |
2795 | && !h->forced_local) | |
2796 | { | |
2797 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2798 | return FALSE; | |
2799 | } | |
2800 | ||
0e1862bb | 2801 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
7ba29e2a NC |
2802 | { |
2803 | asection *s = htab->splt; | |
2804 | ||
2805 | /* The first entry in .plt is reserved. */ | |
2806 | if (s->size == 0) | |
2807 | s->size = PLT_ENTRY_SIZE; | |
2808 | ||
2809 | h->plt.offset = s->size; | |
2810 | ||
2811 | /* If this symbol is not defined in a regular file, and we are | |
2812 | not generating a shared library, then set the symbol to this | |
2813 | location in the .plt. This is required to make function | |
2814 | pointers compare as equal between the normal executable and | |
2815 | the shared library. */ | |
0e1862bb | 2816 | if (! bfd_link_pic (info) |
7ba29e2a NC |
2817 | && !h->def_regular) |
2818 | { | |
2819 | h->root.u.def.section = s; | |
2820 | h->root.u.def.value = h->plt.offset; | |
2821 | } | |
2822 | ||
2823 | /* Make room for this entry. */ | |
2824 | s->size += PLT_ENTRY_SIZE; | |
2825 | ||
2826 | /* We also need to make an entry in the .got.plt section, which | |
2827 | will be placed in the .got section by the linker script. */ | |
2828 | htab->sgotplt->size += 4; | |
2829 | ||
2830 | /* We also need to make an entry in the .rel.plt section. */ | |
2831 | htab->srelplt->size += sizeof (Elf32_External_Rela); | |
2832 | } | |
2833 | else | |
2834 | { | |
2835 | h->plt.offset = (bfd_vma) -1; | |
2836 | h->needs_plt = 0; | |
2837 | } | |
2838 | } | |
2839 | else | |
2840 | { | |
2841 | h->plt.offset = (bfd_vma) -1; | |
2842 | h->needs_plt = 0; | |
2843 | } | |
2844 | ||
69b06cc8 | 2845 | eh = (struct elf32_mb_link_hash_entry *) h; |
7ba29e2a NC |
2846 | if (h->got.refcount > 0) |
2847 | { | |
69b06cc8 | 2848 | unsigned int need; |
7ba29e2a NC |
2849 | asection *s; |
2850 | ||
2851 | /* Make sure this symbol is output as a dynamic symbol. | |
2852 | Undefined weak syms won't yet be marked as dynamic. */ | |
2853 | if (h->dynindx == -1 | |
2854 | && !h->forced_local) | |
2855 | { | |
2856 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2857 | return FALSE; | |
2858 | } | |
2859 | ||
69b06cc8 ME |
2860 | need = 0; |
2861 | if ((eh->tls_mask & TLS_TLS) != 0) | |
2862 | { | |
2863 | /* Handle TLS Symbol */ | |
2864 | if ((eh->tls_mask & TLS_LD) != 0) | |
2865 | { | |
2866 | if (!eh->elf.def_dynamic) | |
2867 | /* We'll just use htab->tlsld_got.offset. This should | |
2868 | always be the case. It's a little odd if we have | |
2869 | a local dynamic reloc against a non-local symbol. */ | |
2870 | htab->tlsld_got.refcount += 1; | |
2871 | else | |
2872 | need += 8; | |
2873 | } | |
2874 | if ((eh->tls_mask & TLS_GD) != 0) | |
2875 | need += 8; | |
2876 | } | |
2877 | else | |
2878 | { | |
2879 | /* Regular (non-TLS) symbol */ | |
2880 | need += 4; | |
2881 | } | |
2882 | if (need == 0) | |
2883 | { | |
2884 | h->got.offset = (bfd_vma) -1; | |
2885 | } | |
2886 | else | |
2887 | { | |
2888 | s = htab->sgot; | |
2889 | h->got.offset = s->size; | |
2890 | s->size += need; | |
2891 | htab->srelgot->size += need * (sizeof (Elf32_External_Rela) / 4); | |
2892 | } | |
7ba29e2a NC |
2893 | } |
2894 | else | |
2895 | h->got.offset = (bfd_vma) -1; | |
2896 | ||
7ba29e2a NC |
2897 | if (eh->dyn_relocs == NULL) |
2898 | return TRUE; | |
2899 | ||
2900 | /* In the shared -Bsymbolic case, discard space allocated for | |
2901 | dynamic pc-relative relocs against symbols which turn out to be | |
2902 | defined in regular objects. For the normal shared case, discard | |
2903 | space for pc-relative relocs that have become local due to symbol | |
2904 | visibility changes. */ | |
2905 | ||
0e1862bb | 2906 | if (bfd_link_pic (info)) |
7ba29e2a NC |
2907 | { |
2908 | if (h->def_regular | |
2909 | && (h->forced_local | |
2910 | || info->symbolic)) | |
2911 | { | |
2912 | struct elf32_mb_dyn_relocs **pp; | |
2913 | ||
2914 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
2915 | { | |
2916 | p->count -= p->pc_count; | |
2917 | p->pc_count = 0; | |
2918 | if (p->count == 0) | |
2919 | *pp = p->next; | |
2920 | else | |
2921 | pp = &p->next; | |
2922 | } | |
2923 | } | |
2924 | } | |
2925 | else | |
2926 | { | |
2927 | /* For the non-shared case, discard space for relocs against | |
2928 | symbols which turn out to need copy relocs or are not | |
2929 | dynamic. */ | |
2930 | ||
2931 | if (!h->non_got_ref | |
2932 | && ((h->def_dynamic | |
2933 | && !h->def_regular) | |
2934 | || (htab->elf.dynamic_sections_created | |
2935 | && (h->root.type == bfd_link_hash_undefweak | |
2936 | || h->root.type == bfd_link_hash_undefined)))) | |
2937 | { | |
2938 | /* Make sure this symbol is output as a dynamic symbol. | |
2939 | Undefined weak syms won't yet be marked as dynamic. */ | |
2940 | if (h->dynindx == -1 | |
2941 | && !h->forced_local) | |
2942 | { | |
2943 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2944 | return FALSE; | |
2945 | } | |
2946 | ||
2947 | /* If that succeeded, we know we'll be keeping all the | |
2948 | relocs. */ | |
2949 | if (h->dynindx != -1) | |
2950 | goto keep; | |
2951 | } | |
2952 | ||
2953 | eh->dyn_relocs = NULL; | |
2954 | ||
2955 | keep: ; | |
2956 | } | |
2957 | ||
2958 | /* Finally, allocate space. */ | |
2959 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2960 | { | |
2961 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
2962 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
2963 | } | |
2964 | ||
2965 | return TRUE; | |
2966 | } | |
2967 | ||
2968 | /* Set the sizes of the dynamic sections. */ | |
2969 | ||
2970 | static bfd_boolean | |
2971 | microblaze_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
2972 | struct bfd_link_info *info) | |
2973 | { | |
2974 | struct elf32_mb_link_hash_table *htab; | |
2975 | bfd *dynobj; | |
2976 | asection *s; | |
2977 | bfd *ibfd; | |
2978 | ||
2979 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2980 | if (htab == NULL) |
2981 | return FALSE; | |
2982 | ||
7ba29e2a NC |
2983 | dynobj = htab->elf.dynobj; |
2984 | BFD_ASSERT (dynobj != NULL); | |
2985 | ||
2986 | /* Set up .got offsets for local syms, and space for local dynamic | |
2987 | relocs. */ | |
c72f2fb2 | 2988 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
7ba29e2a NC |
2989 | { |
2990 | bfd_signed_vma *local_got; | |
2991 | bfd_signed_vma *end_local_got; | |
2992 | bfd_size_type locsymcount; | |
2993 | Elf_Internal_Shdr *symtab_hdr; | |
69b06cc8 | 2994 | unsigned char *lgot_masks; |
7ba29e2a NC |
2995 | asection *srel; |
2996 | ||
2997 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
2998 | continue; | |
2999 | ||
3000 | for (s = ibfd->sections; s != NULL; s = s->next) | |
3001 | { | |
3002 | struct elf32_mb_dyn_relocs *p; | |
3003 | ||
3004 | for (p = ((struct elf32_mb_dyn_relocs *) | |
3005 | elf_section_data (s)->local_dynrel); | |
3006 | p != NULL; | |
3007 | p = p->next) | |
3008 | { | |
3009 | if (!bfd_is_abs_section (p->sec) | |
3010 | && bfd_is_abs_section (p->sec->output_section)) | |
3011 | { | |
3012 | /* Input section has been discarded, either because | |
3013 | it is a copy of a linkonce section or due to | |
3014 | linker script /DISCARD/, so we'll be discarding | |
3015 | the relocs too. */ | |
3016 | } | |
3017 | else if (p->count != 0) | |
3018 | { | |
3019 | srel = elf_section_data (p->sec)->sreloc; | |
3020 | srel->size += p->count * sizeof (Elf32_External_Rela); | |
3021 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
3022 | info->flags |= DF_TEXTREL; | |
3023 | } | |
3024 | } | |
3025 | } | |
3026 | ||
3027 | local_got = elf_local_got_refcounts (ibfd); | |
3028 | if (!local_got) | |
3029 | continue; | |
3030 | ||
3031 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
3032 | locsymcount = symtab_hdr->sh_info; | |
3033 | end_local_got = local_got + locsymcount; | |
69b06cc8 | 3034 | lgot_masks = (unsigned char *) end_local_got; |
7ba29e2a NC |
3035 | s = htab->sgot; |
3036 | srel = htab->srelgot; | |
3037 | ||
69b06cc8 ME |
3038 | for (; local_got < end_local_got; ++local_got, ++lgot_masks) |
3039 | { | |
3040 | if (*local_got > 0) | |
3041 | { | |
3042 | unsigned int need = 0; | |
3043 | if ((*lgot_masks & TLS_TLS) != 0) | |
3044 | { | |
3045 | if ((*lgot_masks & TLS_GD) != 0) | |
3046 | need += 8; | |
3047 | if ((*lgot_masks & TLS_LD) != 0) | |
3048 | htab->tlsld_got.refcount += 1; | |
3049 | } | |
3050 | else | |
3051 | need += 4; | |
3052 | ||
3053 | if (need == 0) | |
3054 | { | |
3055 | *local_got = (bfd_vma) -1; | |
3056 | } | |
3057 | else | |
3058 | { | |
3059 | *local_got = s->size; | |
3060 | s->size += need; | |
0e1862bb | 3061 | if (bfd_link_pic (info)) |
69b06cc8 ME |
3062 | srel->size += need * (sizeof (Elf32_External_Rela) / 4); |
3063 | } | |
7ba29e2a NC |
3064 | } |
3065 | else | |
3066 | *local_got = (bfd_vma) -1; | |
3067 | } | |
3068 | } | |
3069 | ||
3070 | /* Allocate global sym .plt and .got entries, and space for global | |
3071 | sym dynamic relocs. */ | |
3072 | elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info); | |
3073 | ||
69b06cc8 ME |
3074 | if (htab->tlsld_got.refcount > 0) |
3075 | { | |
3076 | htab->tlsld_got.offset = htab->sgot->size; | |
3077 | htab->sgot->size += 8; | |
0e1862bb | 3078 | if (bfd_link_pic (info)) |
69b06cc8 ME |
3079 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
3080 | } | |
3081 | else | |
3082 | htab->tlsld_got.offset = (bfd_vma) -1; | |
3083 | ||
7ba29e2a NC |
3084 | if (elf_hash_table (info)->dynamic_sections_created) |
3085 | { | |
3086 | /* Make space for the trailing nop in .plt. */ | |
3087 | if (htab->splt->size > 0) | |
3088 | htab->splt->size += 4; | |
3089 | } | |
3090 | ||
3091 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
3092 | determined the sizes of the various dynamic sections. Allocate | |
3093 | memory for them. */ | |
3094 | for (s = dynobj->sections; s != NULL; s = s->next) | |
3095 | { | |
3096 | const char *name; | |
3097 | bfd_boolean strip = FALSE; | |
3098 | ||
3099 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
3100 | continue; | |
3101 | ||
3102 | /* It's OK to base decisions on the section name, because none | |
3103 | of the dynobj section names depend upon the input files. */ | |
3104 | name = bfd_get_section_name (dynobj, s); | |
3105 | ||
3106 | if (strncmp (name, ".rela", 5) == 0) | |
3107 | { | |
3108 | if (s->size == 0) | |
3109 | { | |
3110 | /* If we don't need this section, strip it from the | |
3111 | output file. This is to handle .rela.bss and | |
3112 | .rela.plt. We must create it in | |
3113 | create_dynamic_sections, because it must be created | |
3114 | before the linker maps input sections to output | |
3115 | sections. The linker does that before | |
3116 | adjust_dynamic_symbol is called, and it is that | |
3117 | function which decides whether anything needs to go | |
3118 | into these sections. */ | |
3119 | strip = TRUE; | |
3120 | } | |
3121 | else | |
3122 | { | |
3123 | /* We use the reloc_count field as a counter if we need | |
3124 | to copy relocs into the output file. */ | |
3125 | s->reloc_count = 0; | |
3126 | } | |
3127 | } | |
3128 | else if (s != htab->splt && s != htab->sgot && s != htab->sgotplt) | |
3129 | { | |
3130 | /* It's not one of our sections, so don't allocate space. */ | |
3131 | continue; | |
3132 | } | |
3133 | ||
3134 | if (strip) | |
3135 | { | |
3136 | s->flags |= SEC_EXCLUDE; | |
3137 | continue; | |
3138 | } | |
3139 | ||
3140 | /* Allocate memory for the section contents. */ | |
3141 | /* FIXME: This should be a call to bfd_alloc not bfd_zalloc. | |
3142 | Unused entries should be reclaimed before the section's contents | |
3143 | are written out, but at the moment this does not happen. Thus in | |
3144 | order to prevent writing out garbage, we initialise the section's | |
3145 | contents to zero. */ | |
3146 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); | |
3147 | if (s->contents == NULL && s->size != 0) | |
3148 | return FALSE; | |
3149 | } | |
3150 | ||
3151 | if (elf_hash_table (info)->dynamic_sections_created) | |
3152 | { | |
3153 | /* Add some entries to the .dynamic section. We fill in the | |
3154 | values later, in microblaze_elf_finish_dynamic_sections, but we | |
3155 | must add the entries now so that we get the correct size for | |
3156 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
3157 | dynamic linker and used by the debugger. */ | |
3158 | #define add_dynamic_entry(TAG, VAL) \ | |
3159 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
3160 | ||
0e1862bb | 3161 | if (bfd_link_executable (info)) |
7ba29e2a NC |
3162 | { |
3163 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
3164 | return FALSE; | |
3165 | } | |
3166 | ||
3167 | if (!add_dynamic_entry (DT_RELA, 0) | |
3168 | || !add_dynamic_entry (DT_RELASZ, 0) | |
3169 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
3170 | return FALSE; | |
3171 | ||
3172 | if (htab->splt->size != 0) | |
3173 | { | |
3174 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
3175 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
3176 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
3177 | || !add_dynamic_entry (DT_JMPREL, 0) | |
3178 | || !add_dynamic_entry (DT_BIND_NOW, 1)) | |
3179 | return FALSE; | |
3180 | } | |
3181 | ||
3182 | if (info->flags & DF_TEXTREL) | |
3183 | { | |
3184 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
3185 | return FALSE; | |
3186 | } | |
3187 | } | |
3188 | #undef add_dynamic_entry | |
3189 | return TRUE; | |
3190 | } | |
3191 | ||
3192 | /* Finish up dynamic symbol handling. We set the contents of various | |
3193 | dynamic sections here. */ | |
3194 | ||
3195 | static bfd_boolean | |
3196 | microblaze_elf_finish_dynamic_symbol (bfd *output_bfd, | |
3197 | struct bfd_link_info *info, | |
3198 | struct elf_link_hash_entry *h, | |
3199 | Elf_Internal_Sym *sym) | |
3200 | { | |
7ba29e2a | 3201 | struct elf32_mb_link_hash_table *htab; |
69b06cc8 | 3202 | struct elf32_mb_link_hash_entry *eh = elf32_mb_hash_entry(h); |
7ba29e2a NC |
3203 | |
3204 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
3205 | if (htab == NULL) |
3206 | return FALSE; | |
3207 | ||
7ba29e2a NC |
3208 | if (h->plt.offset != (bfd_vma) -1) |
3209 | { | |
3210 | asection *splt; | |
3211 | asection *srela; | |
3212 | asection *sgotplt; | |
3213 | Elf_Internal_Rela rela; | |
3214 | bfd_byte *loc; | |
3215 | bfd_vma plt_index; | |
3216 | bfd_vma got_offset; | |
3217 | bfd_vma got_addr; | |
3218 | ||
3219 | /* This symbol has an entry in the procedure linkage table. Set | |
3220 | it up. */ | |
3221 | BFD_ASSERT (h->dynindx != -1); | |
3222 | ||
3223 | splt = htab->splt; | |
3224 | srela = htab->srelplt; | |
3225 | sgotplt = htab->sgotplt; | |
3226 | BFD_ASSERT (splt != NULL && srela != NULL && sgotplt != NULL); | |
3227 | ||
3228 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; /* first entry reserved. */ | |
3229 | got_offset = (plt_index + 3) * 4; /* 3 reserved ??? */ | |
3230 | got_addr = got_offset; | |
3231 | ||
3232 | /* For non-PIC objects we need absolute address of the GOT entry. */ | |
0e1862bb | 3233 | if (!bfd_link_pic (info)) |
7ba29e2a NC |
3234 | got_addr += htab->sgotplt->output_section->vma + sgotplt->output_offset; |
3235 | ||
3236 | /* Fill in the entry in the procedure linkage table. */ | |
3237 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD_0 + ((got_addr >> 16) & 0xffff), | |
3238 | splt->contents + h->plt.offset); | |
0e1862bb | 3239 | if (bfd_link_pic (info)) |
7ba29e2a NC |
3240 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD_1 + (got_addr & 0xffff), |
3241 | splt->contents + h->plt.offset + 4); | |
3242 | else | |
3243 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD_1_NOPIC + (got_addr & 0xffff), | |
3244 | splt->contents + h->plt.offset + 4); | |
3245 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD_2, | |
3246 | splt->contents + h->plt.offset + 8); | |
3247 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD_3, | |
3248 | splt->contents + h->plt.offset + 12); | |
3249 | ||
3250 | /* Any additions to the .got section??? */ | |
3251 | /* bfd_put_32 (output_bfd, | |
3252 | splt->output_section->vma + splt->output_offset + h->plt.offset + 4, | |
3253 | sgotplt->contents + got_offset); */ | |
3254 | ||
3255 | /* Fill in the entry in the .rela.plt section. */ | |
3256 | rela.r_offset = (sgotplt->output_section->vma | |
3257 | + sgotplt->output_offset | |
3258 | + got_offset); | |
3259 | rela.r_info = ELF32_R_INFO (h->dynindx, R_MICROBLAZE_JUMP_SLOT); | |
3260 | rela.r_addend = 0; | |
3261 | loc = srela->contents; | |
3262 | loc += plt_index * sizeof (Elf32_External_Rela); | |
3263 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
3264 | ||
3265 | if (!h->def_regular) | |
3266 | { | |
3267 | /* Mark the symbol as undefined, rather than as defined in | |
3268 | the .plt section. Zero the value. */ | |
3269 | sym->st_shndx = SHN_UNDEF; | |
3270 | sym->st_value = 0; | |
3271 | } | |
3272 | } | |
3273 | ||
69b06cc8 ME |
3274 | /* h->got.refcount to be checked ? */ |
3275 | if (h->got.offset != (bfd_vma) -1 && | |
3276 | ! ((h->got.offset & 1) || | |
3277 | IS_TLS_LD(eh->tls_mask) || IS_TLS_GD(eh->tls_mask))) | |
7ba29e2a NC |
3278 | { |
3279 | asection *sgot; | |
3280 | asection *srela; | |
69b06cc8 | 3281 | bfd_vma offset; |
7ba29e2a NC |
3282 | |
3283 | /* This symbol has an entry in the global offset table. Set it | |
3284 | up. */ | |
3285 | ||
3286 | sgot = htab->sgot; | |
3287 | srela = htab->srelgot; | |
3288 | BFD_ASSERT (sgot != NULL && srela != NULL); | |
3289 | ||
69b06cc8 | 3290 | offset = (sgot->output_section->vma + sgot->output_offset |
7ba29e2a NC |
3291 | + (h->got.offset &~ (bfd_vma) 1)); |
3292 | ||
3293 | /* If this is a -Bsymbolic link, and the symbol is defined | |
3294 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
3295 | the symbol was forced to be local because of a version file. | |
3296 | The entry in the global offset table will already have been | |
3297 | initialized in the relocate_section function. */ | |
0e1862bb | 3298 | if (bfd_link_pic (info) |
7ba29e2a NC |
3299 | && (info->symbolic || h->dynindx == -1) |
3300 | && h->def_regular) | |
3301 | { | |
3302 | asection *sec = h->root.u.def.section; | |
69b06cc8 ME |
3303 | microblaze_elf_output_dynamic_relocation (output_bfd, |
3304 | srela, srela->reloc_count++, | |
3305 | /* symindex= */ 0, | |
3306 | R_MICROBLAZE_REL, offset, | |
3307 | h->root.u.def.value | |
3308 | + sec->output_section->vma | |
3309 | + sec->output_offset); | |
7ba29e2a NC |
3310 | } |
3311 | else | |
3312 | { | |
69b06cc8 ME |
3313 | microblaze_elf_output_dynamic_relocation (output_bfd, |
3314 | srela, srela->reloc_count++, | |
3315 | h->dynindx, | |
3316 | R_MICROBLAZE_GLOB_DAT, | |
3317 | offset, 0); | |
7ba29e2a NC |
3318 | } |
3319 | ||
3320 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
3321 | sgot->contents + (h->got.offset &~ (bfd_vma) 1)); | |
7ba29e2a NC |
3322 | } |
3323 | ||
3324 | if (h->needs_copy) | |
3325 | { | |
3326 | asection *s; | |
3327 | Elf_Internal_Rela rela; | |
3328 | bfd_byte *loc; | |
3329 | ||
3330 | /* This symbols needs a copy reloc. Set it up. */ | |
3331 | ||
3332 | BFD_ASSERT (h->dynindx != -1); | |
3333 | ||
3d4d4302 | 3334 | s = bfd_get_linker_section (htab->elf.dynobj, ".rela.bss"); |
7ba29e2a NC |
3335 | BFD_ASSERT (s != NULL); |
3336 | ||
3337 | rela.r_offset = (h->root.u.def.value | |
3338 | + h->root.u.def.section->output_section->vma | |
3339 | + h->root.u.def.section->output_offset); | |
3340 | rela.r_info = ELF32_R_INFO (h->dynindx, R_MICROBLAZE_COPY); | |
3341 | rela.r_addend = 0; | |
3342 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); | |
3343 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
3344 | } | |
3345 | ||
3346 | /* Mark some specially defined symbols as absolute. */ | |
9637f6ef L |
3347 | if (h == htab->elf.hdynamic |
3348 | || h == htab->elf.hgot | |
3349 | || h == htab->elf.hplt) | |
7ba29e2a NC |
3350 | sym->st_shndx = SHN_ABS; |
3351 | ||
3352 | return TRUE; | |
3353 | } | |
3354 | ||
3355 | ||
3356 | /* Finish up the dynamic sections. */ | |
3357 | ||
3358 | static bfd_boolean | |
3359 | microblaze_elf_finish_dynamic_sections (bfd *output_bfd, | |
3360 | struct bfd_link_info *info) | |
3361 | { | |
3362 | bfd *dynobj; | |
3363 | asection *sdyn, *sgot; | |
3364 | struct elf32_mb_link_hash_table *htab; | |
3365 | ||
3366 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
3367 | if (htab == NULL) |
3368 | return FALSE; | |
3369 | ||
7ba29e2a NC |
3370 | dynobj = htab->elf.dynobj; |
3371 | ||
3d4d4302 | 3372 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
7ba29e2a NC |
3373 | |
3374 | if (htab->elf.dynamic_sections_created) | |
3375 | { | |
3376 | asection *splt; | |
3377 | Elf32_External_Dyn *dyncon, *dynconend; | |
3378 | ||
3d4d4302 | 3379 | splt = bfd_get_linker_section (dynobj, ".plt"); |
7ba29e2a NC |
3380 | BFD_ASSERT (splt != NULL && sdyn != NULL); |
3381 | ||
3382 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
3383 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
3384 | for (; dyncon < dynconend; dyncon++) | |
3385 | { | |
3386 | Elf_Internal_Dyn dyn; | |
3387 | const char *name; | |
3388 | bfd_boolean size; | |
3389 | ||
3390 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
3391 | ||
3392 | switch (dyn.d_tag) | |
3393 | { | |
3394 | case DT_PLTGOT: name = ".got.plt"; size = FALSE; break; | |
3395 | case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break; | |
3396 | case DT_JMPREL: name = ".rela.plt"; size = FALSE; break; | |
3397 | case DT_RELA: name = ".rela.dyn"; size = FALSE; break; | |
3398 | case DT_RELASZ: name = ".rela.dyn"; size = TRUE; break; | |
3399 | default: name = NULL; size = FALSE; break; | |
3400 | } | |
3401 | ||
3402 | if (name != NULL) | |
3403 | { | |
3404 | asection *s; | |
3405 | ||
3406 | s = bfd_get_section_by_name (output_bfd, name); | |
3407 | if (s == NULL) | |
3408 | dyn.d_un.d_val = 0; | |
3409 | else | |
3410 | { | |
3411 | if (! size) | |
3412 | dyn.d_un.d_ptr = s->vma; | |
3413 | else | |
3414 | dyn.d_un.d_val = s->size; | |
3415 | } | |
3416 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3417 | } | |
3418 | } | |
3419 | ||
3420 | /* Clear the first entry in the procedure linkage table, | |
3421 | and put a nop in the last four bytes. */ | |
3422 | if (splt->size > 0) | |
3423 | { | |
3424 | memset (splt->contents, 0, PLT_ENTRY_SIZE); | |
3425 | bfd_put_32 (output_bfd, (bfd_vma) 0x80000000 /* nop. */, | |
3426 | splt->contents + splt->size - 4); | |
3427 | } | |
3428 | ||
3429 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
3430 | } | |
3431 | ||
3432 | /* Set the first entry in the global offset table to the address of | |
3433 | the dynamic section. */ | |
3d4d4302 | 3434 | sgot = bfd_get_linker_section (dynobj, ".got.plt"); |
7ba29e2a NC |
3435 | if (sgot && sgot->size > 0) |
3436 | { | |
3437 | if (sdyn == NULL) | |
3438 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
3439 | else | |
3440 | bfd_put_32 (output_bfd, | |
3441 | sdyn->output_section->vma + sdyn->output_offset, | |
3442 | sgot->contents); | |
3443 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
3444 | } | |
3445 | ||
3446 | if (htab->sgot && htab->sgot->size > 0) | |
3447 | elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 4; | |
3448 | ||
3449 | return TRUE; | |
3450 | } | |
3451 | ||
3452 | /* Hook called by the linker routine which adds symbols from an object | |
3453 | file. We use it to put .comm items in .sbss, and not .bss. */ | |
3454 | ||
3455 | static bfd_boolean | |
3456 | microblaze_elf_add_symbol_hook (bfd *abfd, | |
3457 | struct bfd_link_info *info, | |
3458 | Elf_Internal_Sym *sym, | |
3459 | const char **namep ATTRIBUTE_UNUSED, | |
3460 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3461 | asection **secp, | |
3462 | bfd_vma *valp) | |
3463 | { | |
3464 | if (sym->st_shndx == SHN_COMMON | |
0e1862bb | 3465 | && !bfd_link_relocatable (info) |
7ba29e2a NC |
3466 | && sym->st_size <= elf_gp_size (abfd)) |
3467 | { | |
3468 | /* Common symbols less than or equal to -G nn bytes are automatically | |
3469 | put into .sbss. */ | |
3d4d4302 | 3470 | *secp = bfd_make_section_old_way (abfd, ".sbss"); |
7ba29e2a NC |
3471 | if (*secp == NULL |
3472 | || ! bfd_set_section_flags (abfd, *secp, SEC_IS_COMMON)) | |
3473 | return FALSE; | |
3474 | ||
3475 | *valp = sym->st_size; | |
3476 | } | |
3477 | ||
3478 | return TRUE; | |
3479 | } | |
3480 | ||
6d00b590 | 3481 | #define TARGET_LITTLE_SYM microblaze_elf32_le_vec |
f23200ad | 3482 | #define TARGET_LITTLE_NAME "elf32-microblazeel" |
7ba29e2a | 3483 | |
6d00b590 | 3484 | #define TARGET_BIG_SYM microblaze_elf32_vec |
7ba29e2a NC |
3485 | #define TARGET_BIG_NAME "elf32-microblaze" |
3486 | ||
3487 | #define ELF_ARCH bfd_arch_microblaze | |
ae95ffa6 | 3488 | #define ELF_TARGET_ID MICROBLAZE_ELF_DATA |
7ba29e2a NC |
3489 | #define ELF_MACHINE_CODE EM_MICROBLAZE |
3490 | #define ELF_MACHINE_ALT1 EM_MICROBLAZE_OLD | |
69b06cc8 | 3491 | #define ELF_MAXPAGESIZE 0x1000 |
7ba29e2a NC |
3492 | #define elf_info_to_howto microblaze_elf_info_to_howto |
3493 | #define elf_info_to_howto_rel NULL | |
3494 | ||
3495 | #define bfd_elf32_bfd_reloc_type_lookup microblaze_elf_reloc_type_lookup | |
3496 | #define bfd_elf32_bfd_is_local_label_name microblaze_elf_is_local_label_name | |
3497 | #define elf_backend_relocate_section microblaze_elf_relocate_section | |
3498 | #define bfd_elf32_bfd_relax_section microblaze_elf_relax_section | |
f23200ad | 3499 | #define bfd_elf32_bfd_merge_private_bfd_data microblaze_elf_merge_private_bfd_data |
7ba29e2a NC |
3500 | #define bfd_elf32_bfd_reloc_name_lookup microblaze_elf_reloc_name_lookup |
3501 | ||
3502 | #define elf_backend_gc_mark_hook microblaze_elf_gc_mark_hook | |
3503 | #define elf_backend_gc_sweep_hook microblaze_elf_gc_sweep_hook | |
3504 | #define elf_backend_check_relocs microblaze_elf_check_relocs | |
3505 | #define elf_backend_copy_indirect_symbol microblaze_elf_copy_indirect_symbol | |
3506 | #define bfd_elf32_bfd_link_hash_table_create microblaze_elf_link_hash_table_create | |
3507 | #define elf_backend_can_gc_sections 1 | |
3508 | #define elf_backend_can_refcount 1 | |
3509 | #define elf_backend_want_got_plt 1 | |
3510 | #define elf_backend_plt_readonly 1 | |
3511 | #define elf_backend_got_header_size 12 | |
3512 | #define elf_backend_rela_normal 1 | |
3513 | ||
3514 | #define elf_backend_adjust_dynamic_symbol microblaze_elf_adjust_dynamic_symbol | |
3515 | #define elf_backend_create_dynamic_sections microblaze_elf_create_dynamic_sections | |
3516 | #define elf_backend_finish_dynamic_sections microblaze_elf_finish_dynamic_sections | |
3517 | #define elf_backend_finish_dynamic_symbol microblaze_elf_finish_dynamic_symbol | |
3518 | #define elf_backend_size_dynamic_sections microblaze_elf_size_dynamic_sections | |
3519 | #define elf_backend_add_symbol_hook microblaze_elf_add_symbol_hook | |
3520 | ||
3521 | #include "elf32-target.h" |