Commit | Line | Data |
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7ba29e2a NC |
1 | /* Xilinx MicroBlaze-specific support for 32-bit ELF |
2 | ||
a0f49396 | 3 | Copyright 2009, 2010, 2011, 2012 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. */ | |
47 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
48 | 32, /* Bitsize. */ | |
49 | FALSE, /* PC_relative. */ | |
50 | 0, /* Bitpos. */ | |
51 | complain_overflow_bitfield, /* Complain on overflow. */ | |
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. */ | |
182 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
183 | 32, /* Bitsize. */ | |
184 | TRUE, /* PC_relative. */ | |
185 | 0, /* Bitpos. */ | |
186 | complain_overflow_bitfield, /* Complain on overflow. */ | |
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? */ | |
373 | }; | |
374 | ||
375 | #ifndef NUM_ELEM | |
376 | #define NUM_ELEM(a) (sizeof (a) / sizeof (a)[0]) | |
377 | #endif | |
378 | \f | |
379 | /* Initialize the microblaze_elf_howto_table, so that linear accesses can be done. */ | |
380 | ||
381 | static void | |
382 | microblaze_elf_howto_init (void) | |
383 | { | |
384 | unsigned int i; | |
385 | ||
386 | for (i = NUM_ELEM (microblaze_elf_howto_raw); i--;) | |
387 | { | |
388 | unsigned int type; | |
389 | ||
390 | type = microblaze_elf_howto_raw[i].type; | |
391 | ||
392 | BFD_ASSERT (type < NUM_ELEM (microblaze_elf_howto_table)); | |
393 | ||
394 | microblaze_elf_howto_table [type] = & microblaze_elf_howto_raw [i]; | |
395 | } | |
396 | } | |
397 | \f | |
398 | static reloc_howto_type * | |
399 | microblaze_elf_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, | |
400 | bfd_reloc_code_real_type code) | |
401 | { | |
402 | enum elf_microblaze_reloc_type microblaze_reloc = R_MICROBLAZE_NONE; | |
403 | ||
404 | switch (code) | |
405 | { | |
406 | case BFD_RELOC_NONE: | |
407 | microblaze_reloc = R_MICROBLAZE_NONE; | |
408 | break; | |
409 | case BFD_RELOC_MICROBLAZE_64_NONE: | |
410 | microblaze_reloc = R_MICROBLAZE_64_NONE; | |
411 | break; | |
412 | case BFD_RELOC_32: | |
413 | microblaze_reloc = R_MICROBLAZE_32; | |
414 | break; | |
415 | /* RVA is treated the same as 32 */ | |
416 | case BFD_RELOC_RVA: | |
417 | microblaze_reloc = R_MICROBLAZE_32; | |
418 | break; | |
419 | case BFD_RELOC_32_PCREL: | |
420 | microblaze_reloc = R_MICROBLAZE_32_PCREL; | |
421 | break; | |
422 | case BFD_RELOC_64_PCREL: | |
423 | microblaze_reloc = R_MICROBLAZE_64_PCREL; | |
424 | break; | |
425 | case BFD_RELOC_MICROBLAZE_32_LO_PCREL: | |
426 | microblaze_reloc = R_MICROBLAZE_32_PCREL_LO; | |
427 | break; | |
428 | case BFD_RELOC_64: | |
429 | microblaze_reloc = R_MICROBLAZE_64; | |
430 | break; | |
431 | case BFD_RELOC_MICROBLAZE_32_LO: | |
432 | microblaze_reloc = R_MICROBLAZE_32_LO; | |
433 | break; | |
434 | case BFD_RELOC_MICROBLAZE_32_ROSDA: | |
435 | microblaze_reloc = R_MICROBLAZE_SRO32; | |
436 | break; | |
437 | case BFD_RELOC_MICROBLAZE_32_RWSDA: | |
438 | microblaze_reloc = R_MICROBLAZE_SRW32; | |
439 | break; | |
440 | case BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM: | |
441 | microblaze_reloc = R_MICROBLAZE_32_SYM_OP_SYM; | |
442 | break; | |
443 | case BFD_RELOC_VTABLE_INHERIT: | |
444 | microblaze_reloc = R_MICROBLAZE_GNU_VTINHERIT; | |
445 | break; | |
446 | case BFD_RELOC_VTABLE_ENTRY: | |
447 | microblaze_reloc = R_MICROBLAZE_GNU_VTENTRY; | |
448 | break; | |
449 | case BFD_RELOC_MICROBLAZE_64_GOTPC: | |
450 | microblaze_reloc = R_MICROBLAZE_GOTPC_64; | |
451 | break; | |
452 | case BFD_RELOC_MICROBLAZE_64_GOT: | |
453 | microblaze_reloc = R_MICROBLAZE_GOT_64; | |
454 | break; | |
455 | case BFD_RELOC_MICROBLAZE_64_PLT: | |
456 | microblaze_reloc = R_MICROBLAZE_PLT_64; | |
457 | break; | |
458 | case BFD_RELOC_MICROBLAZE_64_GOTOFF: | |
459 | microblaze_reloc = R_MICROBLAZE_GOTOFF_64; | |
460 | break; | |
461 | case BFD_RELOC_MICROBLAZE_32_GOTOFF: | |
462 | microblaze_reloc = R_MICROBLAZE_GOTOFF_32; | |
463 | break; | |
464 | case BFD_RELOC_MICROBLAZE_COPY: | |
465 | microblaze_reloc = R_MICROBLAZE_COPY; | |
466 | break; | |
467 | default: | |
468 | return (reloc_howto_type *) NULL; | |
469 | } | |
470 | ||
471 | if (!microblaze_elf_howto_table [R_MICROBLAZE_32]) | |
472 | /* Initialize howto table if needed. */ | |
473 | microblaze_elf_howto_init (); | |
474 | ||
475 | return microblaze_elf_howto_table [(int) microblaze_reloc]; | |
476 | }; | |
477 | ||
478 | static reloc_howto_type * | |
479 | microblaze_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
480 | const char *r_name) | |
481 | { | |
482 | unsigned int i; | |
483 | ||
484 | for (i = 0; i < NUM_ELEM (microblaze_elf_howto_raw); i++) | |
485 | if (microblaze_elf_howto_raw[i].name != NULL | |
486 | && strcasecmp (microblaze_elf_howto_raw[i].name, r_name) == 0) | |
487 | return µblaze_elf_howto_raw[i]; | |
488 | ||
489 | return NULL; | |
490 | } | |
491 | ||
492 | /* Set the howto pointer for a RCE ELF reloc. */ | |
493 | ||
494 | static void | |
495 | microblaze_elf_info_to_howto (bfd * abfd ATTRIBUTE_UNUSED, | |
496 | arelent * cache_ptr, | |
497 | Elf_Internal_Rela * dst) | |
498 | { | |
499 | if (!microblaze_elf_howto_table [R_MICROBLAZE_32]) | |
500 | /* Initialize howto table if needed. */ | |
501 | microblaze_elf_howto_init (); | |
502 | ||
503 | BFD_ASSERT (ELF32_R_TYPE (dst->r_info) < (unsigned int) R_MICROBLAZE_max); | |
504 | ||
505 | cache_ptr->howto = microblaze_elf_howto_table [ELF32_R_TYPE (dst->r_info)]; | |
506 | } | |
507 | ||
508 | /* Microblaze ELF local labels start with 'L.' or '$L', not '.L'. */ | |
509 | ||
510 | static bfd_boolean | |
511 | microblaze_elf_is_local_label_name (bfd *abfd, const char *name) | |
512 | { | |
513 | if (name[0] == 'L' && name[1] == '.') | |
514 | return TRUE; | |
515 | ||
516 | if (name[0] == '$' && name[1] == 'L') | |
517 | return TRUE; | |
518 | ||
519 | /* With gcc, the labels go back to starting with '.', so we accept | |
520 | the generic ELF local label syntax as well. */ | |
521 | return _bfd_elf_is_local_label_name (abfd, name); | |
522 | } | |
523 | ||
524 | /* The microblaze linker (like many others) needs to keep track of | |
525 | the number of relocs that it decides to copy as dynamic relocs in | |
526 | check_relocs for each symbol. This is so that it can later discard | |
527 | them if they are found to be unnecessary. We store the information | |
528 | in a field extending the regular ELF linker hash table. */ | |
529 | ||
530 | struct elf32_mb_dyn_relocs | |
531 | { | |
532 | struct elf32_mb_dyn_relocs *next; | |
533 | ||
534 | /* The input section of the reloc. */ | |
535 | asection *sec; | |
536 | ||
537 | /* Total number of relocs copied for the input section. */ | |
538 | bfd_size_type count; | |
539 | ||
540 | /* Number of pc-relative relocs copied for the input section. */ | |
541 | bfd_size_type pc_count; | |
542 | }; | |
543 | ||
544 | /* ELF linker hash entry. */ | |
545 | ||
546 | struct elf32_mb_link_hash_entry | |
547 | { | |
548 | struct elf_link_hash_entry elf; | |
549 | ||
550 | /* Track dynamic relocs copied for this symbol. */ | |
551 | struct elf32_mb_dyn_relocs *dyn_relocs; | |
552 | ||
553 | }; | |
554 | ||
555 | #define elf32_mb_hash_entry(ent) ((struct elf32_mb_link_hash_entry *)(ent)) | |
556 | ||
557 | /* ELF linker hash table. */ | |
558 | ||
559 | struct elf32_mb_link_hash_table | |
560 | { | |
561 | struct elf_link_hash_table elf; | |
562 | ||
563 | /* Short-cuts to get to dynamic linker sections. */ | |
564 | asection *sgot; | |
565 | asection *sgotplt; | |
566 | asection *srelgot; | |
567 | asection *splt; | |
568 | asection *srelplt; | |
569 | asection *sdynbss; | |
570 | asection *srelbss; | |
571 | ||
572 | /* Small local sym to section mapping cache. */ | |
573 | struct sym_cache sym_sec; | |
574 | }; | |
575 | ||
576 | /* Get the ELF linker hash table from a link_info structure. */ | |
577 | ||
578 | #define elf32_mb_hash_table(p) \ | |
4dfe6ac6 NC |
579 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
580 | == MICROBLAZE_ELF_DATA ? ((struct elf32_mb_link_hash_table *) ((p)->hash)) : NULL) | |
7ba29e2a NC |
581 | |
582 | /* Create an entry in a microblaze ELF linker hash table. */ | |
583 | ||
584 | static struct bfd_hash_entry * | |
585 | link_hash_newfunc (struct bfd_hash_entry *entry, | |
586 | struct bfd_hash_table *table, | |
587 | const char *string) | |
588 | { | |
589 | /* Allocate the structure if it has not already been allocated by a | |
590 | subclass. */ | |
591 | if (entry == NULL) | |
592 | { | |
593 | entry = bfd_hash_allocate (table, | |
594 | sizeof (struct elf32_mb_link_hash_entry)); | |
595 | if (entry == NULL) | |
596 | return entry; | |
597 | } | |
598 | ||
599 | /* Call the allocation method of the superclass. */ | |
600 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
601 | if (entry != NULL) | |
602 | { | |
603 | struct elf32_mb_link_hash_entry *eh; | |
604 | ||
605 | eh = (struct elf32_mb_link_hash_entry *) entry; | |
606 | eh->dyn_relocs = NULL; | |
607 | } | |
608 | ||
609 | return entry; | |
610 | } | |
611 | ||
612 | /* Create a mb ELF linker hash table. */ | |
613 | ||
614 | static struct bfd_link_hash_table * | |
615 | microblaze_elf_link_hash_table_create (bfd *abfd) | |
616 | { | |
617 | struct elf32_mb_link_hash_table *ret; | |
618 | bfd_size_type amt = sizeof (struct elf32_mb_link_hash_table); | |
619 | ||
620 | ret = (struct elf32_mb_link_hash_table *) bfd_zmalloc (amt); | |
621 | if (ret == NULL) | |
622 | return NULL; | |
623 | ||
624 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc, | |
4dfe6ac6 NC |
625 | sizeof (struct elf32_mb_link_hash_entry), |
626 | MICROBLAZE_ELF_DATA)) | |
7ba29e2a NC |
627 | { |
628 | free (ret); | |
629 | return NULL; | |
630 | } | |
631 | ||
632 | return &ret->elf.root; | |
633 | } | |
634 | \f | |
635 | /* Set the values of the small data pointers. */ | |
636 | ||
637 | static void | |
638 | microblaze_elf_final_sdp (struct bfd_link_info *info) | |
639 | { | |
640 | struct bfd_link_hash_entry *h; | |
641 | ||
642 | h = bfd_link_hash_lookup (info->hash, RO_SDA_ANCHOR_NAME, FALSE, FALSE, TRUE); | |
643 | if (h != (struct bfd_link_hash_entry *) NULL | |
644 | && h->type == bfd_link_hash_defined) | |
645 | ro_small_data_pointer = (h->u.def.value | |
646 | + h->u.def.section->output_section->vma | |
647 | + h->u.def.section->output_offset); | |
648 | ||
649 | h = bfd_link_hash_lookup (info->hash, RW_SDA_ANCHOR_NAME, FALSE, FALSE, TRUE); | |
650 | if (h != (struct bfd_link_hash_entry *) NULL | |
651 | && h->type == bfd_link_hash_defined) | |
652 | rw_small_data_pointer = (h->u.def.value | |
653 | + h->u.def.section->output_section->vma | |
654 | + h->u.def.section->output_offset); | |
655 | } | |
656 | ||
657 | /* This code is taken from elf32-m32r.c | |
658 | There is some attempt to make this function usable for many architectures, | |
659 | both USE_REL and USE_RELA ['twould be nice if such a critter existed], | |
660 | if only to serve as a learning tool. | |
661 | ||
662 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
663 | to handle the relocations for a section. | |
664 | ||
665 | The relocs are always passed as Rela structures; if the section | |
666 | actually uses Rel structures, the r_addend field will always be | |
667 | zero. | |
668 | ||
669 | This function is responsible for adjust the section contents as | |
670 | necessary, and (if using Rela relocs and generating a | |
671 | relocatable output file) adjusting the reloc addend as | |
672 | necessary. | |
673 | ||
674 | This function does not have to worry about setting the reloc | |
675 | address or the reloc symbol index. | |
676 | ||
677 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
678 | ||
679 | LOCAL_SECTIONS is an array giving the section in the input file | |
680 | corresponding to the st_shndx field of each local symbol. | |
681 | ||
682 | The global hash table entry for the global symbols can be found | |
683 | via elf_sym_hashes (input_bfd). | |
684 | ||
685 | When generating relocatable output, this function must handle | |
686 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
687 | going to be the section symbol corresponding to the output | |
688 | section, which means that the addend must be adjusted | |
689 | accordingly. */ | |
690 | ||
691 | static bfd_boolean | |
692 | microblaze_elf_relocate_section (bfd *output_bfd, | |
693 | struct bfd_link_info *info, | |
694 | bfd *input_bfd, | |
695 | asection *input_section, | |
696 | bfd_byte *contents, | |
697 | Elf_Internal_Rela *relocs, | |
698 | Elf_Internal_Sym *local_syms, | |
699 | asection **local_sections) | |
700 | { | |
701 | struct elf32_mb_link_hash_table *htab; | |
702 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
703 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); | |
704 | Elf_Internal_Rela *rel, *relend; | |
f23200ad | 705 | int endian = (bfd_little_endian (output_bfd)) ? 0 : 2; |
7ba29e2a NC |
706 | /* Assume success. */ |
707 | bfd_boolean ret = TRUE; | |
708 | asection *sreloc; | |
709 | bfd_vma *local_got_offsets; | |
710 | ||
711 | if (!microblaze_elf_howto_table[R_MICROBLAZE_max-1]) | |
712 | microblaze_elf_howto_init (); | |
713 | ||
714 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
715 | if (htab == NULL) |
716 | return FALSE; | |
717 | ||
7ba29e2a NC |
718 | local_got_offsets = elf_local_got_offsets (input_bfd); |
719 | ||
720 | sreloc = elf_section_data (input_section)->sreloc; | |
721 | ||
722 | rel = relocs; | |
723 | relend = relocs + input_section->reloc_count; | |
724 | for (; rel < relend; rel++) | |
725 | { | |
726 | int r_type; | |
727 | reloc_howto_type *howto; | |
728 | unsigned long r_symndx; | |
729 | bfd_vma addend = rel->r_addend; | |
730 | bfd_vma offset = rel->r_offset; | |
731 | struct elf_link_hash_entry *h; | |
732 | Elf_Internal_Sym *sym; | |
733 | asection *sec; | |
734 | const char *sym_name; | |
735 | bfd_reloc_status_type r = bfd_reloc_ok; | |
736 | const char *errmsg = NULL; | |
737 | bfd_boolean unresolved_reloc = FALSE; | |
738 | ||
739 | h = NULL; | |
740 | r_type = ELF32_R_TYPE (rel->r_info); | |
741 | if (r_type < 0 || r_type >= (int) R_MICROBLAZE_max) | |
742 | { | |
743 | (*_bfd_error_handler) (_("%s: unknown relocation type %d"), | |
744 | bfd_get_filename (input_bfd), (int) r_type); | |
745 | bfd_set_error (bfd_error_bad_value); | |
746 | ret = FALSE; | |
747 | continue; | |
748 | } | |
749 | ||
750 | howto = microblaze_elf_howto_table[r_type]; | |
751 | r_symndx = ELF32_R_SYM (rel->r_info); | |
752 | ||
753 | if (info->relocatable) | |
754 | { | |
755 | /* This is a relocatable link. We don't have to change | |
756 | anything, unless the reloc is against a section symbol, | |
757 | in which case we have to adjust according to where the | |
758 | section symbol winds up in the output section. */ | |
759 | sec = NULL; | |
760 | if (r_symndx >= symtab_hdr->sh_info) | |
761 | /* External symbol. */ | |
762 | continue; | |
763 | ||
764 | /* Local symbol. */ | |
765 | sym = local_syms + r_symndx; | |
766 | sym_name = "<local symbol>"; | |
767 | /* STT_SECTION: symbol is associated with a section. */ | |
768 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
769 | /* Symbol isn't associated with a section. Nothing to do. */ | |
770 | continue; | |
771 | ||
772 | sec = local_sections[r_symndx]; | |
773 | addend += sec->output_offset + sym->st_value; | |
774 | #ifndef USE_REL | |
775 | /* This can't be done for USE_REL because it doesn't mean anything | |
776 | and elf_link_input_bfd asserts this stays zero. */ | |
777 | /* rel->r_addend = addend; */ | |
778 | #endif | |
779 | ||
780 | #ifndef USE_REL | |
781 | /* Addends are stored with relocs. We're done. */ | |
782 | continue; | |
783 | #else /* USE_REL */ | |
784 | /* If partial_inplace, we need to store any additional addend | |
785 | back in the section. */ | |
786 | if (!howto->partial_inplace) | |
787 | continue; | |
788 | /* ??? Here is a nice place to call a special_function like handler. */ | |
789 | r = _bfd_relocate_contents (howto, input_bfd, addend, | |
790 | contents + offset); | |
791 | #endif /* USE_REL */ | |
792 | } | |
793 | else | |
794 | { | |
795 | bfd_vma relocation; | |
796 | ||
797 | /* This is a final link. */ | |
798 | sym = NULL; | |
799 | sec = NULL; | |
800 | unresolved_reloc = FALSE; | |
801 | ||
802 | if (r_symndx < symtab_hdr->sh_info) | |
803 | { | |
804 | /* Local symbol. */ | |
805 | sym = local_syms + r_symndx; | |
806 | sec = local_sections[r_symndx]; | |
807 | if (sec == 0) | |
808 | continue; | |
809 | sym_name = "<local symbol>"; | |
810 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
811 | /* r_addend may have changed if the reference section was | |
812 | a merge section. */ | |
813 | addend = rel->r_addend; | |
814 | } | |
815 | else | |
816 | { | |
817 | /* External symbol. */ | |
818 | bfd_boolean warned ATTRIBUTE_UNUSED; | |
819 | ||
820 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
821 | r_symndx, symtab_hdr, sym_hashes, | |
822 | h, sec, relocation, | |
823 | unresolved_reloc, warned); | |
824 | sym_name = h->root.root.string; | |
825 | } | |
826 | ||
827 | /* Sanity check the address. */ | |
e57278ef | 828 | if (offset > bfd_get_section_limit (input_bfd, input_section)) |
7ba29e2a NC |
829 | { |
830 | r = bfd_reloc_outofrange; | |
831 | goto check_reloc; | |
832 | } | |
833 | ||
834 | switch ((int) r_type) | |
835 | { | |
836 | case (int) R_MICROBLAZE_SRO32 : | |
837 | { | |
838 | const char *name; | |
839 | ||
840 | /* Only relocate if the symbol is defined. */ | |
841 | if (sec) | |
842 | { | |
a0f49396 | 843 | name = bfd_get_section_name (sec->owner, sec); |
7ba29e2a NC |
844 | |
845 | if (strcmp (name, ".sdata2") == 0 | |
846 | || strcmp (name, ".sbss2") == 0) | |
847 | { | |
848 | if (ro_small_data_pointer == 0) | |
849 | microblaze_elf_final_sdp (info); | |
850 | if (ro_small_data_pointer == 0) | |
851 | { | |
852 | ret = FALSE; | |
853 | r = bfd_reloc_undefined; | |
854 | goto check_reloc; | |
855 | } | |
856 | ||
857 | /* At this point `relocation' contains the object's | |
858 | address. */ | |
859 | relocation -= ro_small_data_pointer; | |
860 | /* Now it contains the offset from _SDA2_BASE_. */ | |
861 | r = _bfd_final_link_relocate (howto, input_bfd, | |
862 | input_section, | |
863 | contents, offset, | |
864 | relocation, addend); | |
865 | } | |
866 | else | |
867 | { | |
868 | (*_bfd_error_handler) (_("%s: The target (%s) of an %s relocation is in the wrong section (%s)"), | |
869 | bfd_get_filename (input_bfd), | |
870 | sym_name, | |
871 | microblaze_elf_howto_table[(int) r_type]->name, | |
a0f49396 | 872 | bfd_get_section_name (sec->owner, sec)); |
7ba29e2a NC |
873 | /*bfd_set_error (bfd_error_bad_value); ??? why? */ |
874 | ret = FALSE; | |
875 | continue; | |
876 | } | |
877 | } | |
878 | } | |
879 | break; | |
880 | ||
881 | case (int) R_MICROBLAZE_SRW32 : | |
882 | { | |
883 | const char *name; | |
884 | ||
885 | /* Only relocate if the symbol is defined. */ | |
886 | if (sec) | |
887 | { | |
a0f49396 | 888 | name = bfd_get_section_name (sec->owner, sec); |
7ba29e2a NC |
889 | |
890 | if (strcmp (name, ".sdata") == 0 | |
891 | || strcmp (name, ".sbss") == 0) | |
892 | { | |
893 | if (rw_small_data_pointer == 0) | |
894 | microblaze_elf_final_sdp (info); | |
895 | if (rw_small_data_pointer == 0) | |
896 | { | |
897 | ret = FALSE; | |
898 | r = bfd_reloc_undefined; | |
899 | goto check_reloc; | |
900 | } | |
901 | ||
902 | /* At this point `relocation' contains the object's | |
903 | address. */ | |
904 | relocation -= rw_small_data_pointer; | |
905 | /* Now it contains the offset from _SDA_BASE_. */ | |
906 | r = _bfd_final_link_relocate (howto, input_bfd, | |
907 | input_section, | |
908 | contents, offset, | |
909 | relocation, addend); | |
910 | } | |
911 | else | |
912 | { | |
913 | (*_bfd_error_handler) (_("%s: The target (%s) of an %s relocation is in the wrong section (%s)"), | |
914 | bfd_get_filename (input_bfd), | |
915 | sym_name, | |
916 | microblaze_elf_howto_table[(int) r_type]->name, | |
a0f49396 | 917 | bfd_get_section_name (sec->owner, sec)); |
7ba29e2a NC |
918 | /*bfd_set_error (bfd_error_bad_value); ??? why? */ |
919 | ret = FALSE; | |
920 | continue; | |
921 | } | |
922 | } | |
923 | } | |
924 | break; | |
925 | ||
926 | case (int) R_MICROBLAZE_32_SYM_OP_SYM: | |
927 | break; /* Do nothing. */ | |
928 | ||
929 | case (int) R_MICROBLAZE_GOTPC_64: | |
930 | relocation = htab->sgotplt->output_section->vma | |
931 | + htab->sgotplt->output_offset; | |
932 | relocation -= (input_section->output_section->vma | |
933 | + input_section->output_offset | |
934 | + offset + INST_WORD_SIZE); | |
935 | relocation += addend; | |
936 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
f23200ad | 937 | contents + offset + endian); |
7ba29e2a | 938 | bfd_put_16 (input_bfd, relocation & 0xffff, |
f23200ad | 939 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
940 | break; |
941 | ||
942 | case (int) R_MICROBLAZE_PLT_64: | |
943 | { | |
944 | bfd_vma immediate; | |
945 | if (htab->splt != NULL && h != NULL | |
946 | && h->plt.offset != (bfd_vma) -1) | |
947 | { | |
948 | relocation = (htab->splt->output_section->vma | |
949 | + htab->splt->output_offset | |
950 | + h->plt.offset); | |
951 | unresolved_reloc = FALSE; | |
952 | immediate = relocation - (input_section->output_section->vma | |
953 | + input_section->output_offset | |
954 | + offset + INST_WORD_SIZE); | |
955 | bfd_put_16 (input_bfd, (immediate >> 16) & 0xffff, | |
f23200ad | 956 | contents + offset + endian); |
7ba29e2a | 957 | bfd_put_16 (input_bfd, immediate & 0xffff, |
f23200ad | 958 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
959 | } |
960 | else | |
961 | { | |
962 | relocation -= (input_section->output_section->vma | |
963 | + input_section->output_offset | |
964 | + offset + INST_WORD_SIZE); | |
965 | immediate = relocation; | |
966 | bfd_put_16 (input_bfd, (immediate >> 16) & 0xffff, | |
f23200ad | 967 | contents + offset + endian); |
7ba29e2a | 968 | bfd_put_16 (input_bfd, immediate & 0xffff, |
f23200ad | 969 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
970 | } |
971 | break; | |
972 | } | |
973 | ||
974 | case (int) R_MICROBLAZE_GOT_64: | |
975 | { | |
976 | if (htab->sgot == NULL) | |
977 | abort (); | |
978 | if (h == NULL) | |
979 | { | |
980 | bfd_vma off; | |
981 | if (local_got_offsets == NULL) | |
982 | abort (); | |
983 | off = local_got_offsets[r_symndx]; | |
984 | /* The LSB indicates whether we've already | |
985 | created relocation. */ | |
986 | if (off & 1) | |
987 | off &= ~1; | |
988 | else | |
989 | { | |
990 | bfd_put_32 (output_bfd, relocation + addend, | |
991 | htab->sgot->contents + off); | |
992 | ||
993 | if (info->shared) | |
994 | { | |
995 | Elf_Internal_Rela outrel; | |
996 | bfd_byte *loc; | |
997 | if (htab->srelgot == NULL) | |
998 | abort (); | |
999 | outrel.r_offset = (htab->sgot->output_section->vma | |
1000 | + htab->sgot->output_offset | |
1001 | + off); | |
1002 | outrel.r_info = ELF32_R_INFO (0, R_MICROBLAZE_REL); | |
1003 | outrel.r_addend = relocation + addend; | |
1004 | loc = htab->srelgot->contents; | |
1005 | loc += htab->srelgot->reloc_count++ | |
1006 | * sizeof (Elf32_External_Rela); | |
1007 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
1008 | } | |
1009 | local_got_offsets[r_symndx] |= 1; | |
1010 | } | |
1011 | relocation = htab->sgot->output_section->vma | |
1012 | + htab->sgot->output_offset + off | |
1013 | - htab->sgotplt->output_section->vma | |
1014 | - htab->sgotplt->output_offset; | |
1015 | unresolved_reloc = FALSE; | |
1016 | } | |
1017 | else | |
1018 | { | |
1019 | if (htab->sgotplt != NULL && h != NULL | |
1020 | && h->got.offset != (bfd_vma) -1) | |
1021 | { | |
1022 | bfd_put_32 (output_bfd, relocation + addend, | |
1023 | htab->sgot->contents + h->got.offset); | |
1024 | relocation = htab->sgot->output_section->vma | |
1025 | + htab->sgot->output_offset | |
1026 | + h->got.offset | |
1027 | - htab->sgotplt->output_section->vma | |
1028 | - htab->sgotplt->output_offset; | |
1029 | unresolved_reloc = FALSE; | |
1030 | } | |
1031 | else | |
1032 | abort (); /* ??? */ | |
1033 | } | |
1034 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
f23200ad | 1035 | contents + offset + endian); |
7ba29e2a | 1036 | bfd_put_16 (input_bfd, relocation & 0xffff, |
f23200ad | 1037 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1038 | break; |
1039 | } | |
1040 | ||
1041 | case (int) R_MICROBLAZE_GOTOFF_64: | |
1042 | { | |
1043 | bfd_vma immediate; | |
1044 | unsigned short lo, high; | |
1045 | relocation += addend; | |
1046 | relocation -= htab->sgotplt->output_section->vma | |
1047 | + htab->sgotplt->output_offset; | |
1048 | /* Write this value into correct location. */ | |
1049 | immediate = relocation; | |
1050 | lo = immediate & 0x0000ffff; | |
1051 | high = (immediate >> 16) & 0x0000ffff; | |
f23200ad ME |
1052 | bfd_put_16 (input_bfd, high, contents + offset + endian); |
1053 | bfd_put_16 (input_bfd, lo, contents + offset + INST_WORD_SIZE + endian); | |
7ba29e2a NC |
1054 | break; |
1055 | } | |
1056 | ||
1057 | case (int) R_MICROBLAZE_GOTOFF_32: | |
1058 | { | |
1059 | relocation += addend; | |
1060 | relocation -= htab->sgotplt->output_section->vma | |
1061 | + htab->sgotplt->output_offset; | |
1062 | /* Write this value into correct location. */ | |
1063 | bfd_put_32 (input_bfd, relocation, contents + offset); | |
1064 | break; | |
1065 | } | |
1066 | ||
1067 | case (int) R_MICROBLAZE_64_PCREL : | |
1068 | case (int) R_MICROBLAZE_64: | |
1069 | case (int) R_MICROBLAZE_32: | |
1070 | { | |
cf35638d | 1071 | /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols |
7ba29e2a NC |
1072 | from removed linkonce sections, or sections discarded by |
1073 | a linker script. */ | |
cf35638d | 1074 | if (r_symndx == STN_UNDEF || (input_section->flags & SEC_ALLOC) == 0) |
7ba29e2a NC |
1075 | { |
1076 | relocation += addend; | |
1077 | if (r_type == R_MICROBLAZE_32) | |
1078 | bfd_put_32 (input_bfd, relocation, contents + offset); | |
1079 | else | |
1080 | { | |
1081 | if (r_type == R_MICROBLAZE_64_PCREL) | |
1082 | relocation -= (input_section->output_section->vma | |
1083 | + input_section->output_offset | |
1084 | + offset + INST_WORD_SIZE); | |
1085 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
f23200ad | 1086 | contents + offset + endian); |
7ba29e2a | 1087 | bfd_put_16 (input_bfd, relocation & 0xffff, |
f23200ad | 1088 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1089 | } |
1090 | break; | |
1091 | } | |
1092 | ||
1093 | if ((info->shared | |
1094 | && (h == NULL | |
1095 | || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
1096 | || h->root.type != bfd_link_hash_undefweak) | |
1097 | && (!howto->pc_relative | |
1098 | || (h != NULL | |
1099 | && h->dynindx != -1 | |
1100 | && (!info->symbolic | |
1101 | || !h->def_regular)))) | |
1102 | || (!info->shared | |
1103 | && h != NULL | |
1104 | && h->dynindx != -1 | |
1105 | && !h->non_got_ref | |
1106 | && ((h->def_dynamic | |
1107 | && !h->def_regular) | |
1108 | || h->root.type == bfd_link_hash_undefweak | |
1109 | || h->root.type == bfd_link_hash_undefined))) | |
1110 | { | |
1111 | Elf_Internal_Rela outrel; | |
1112 | bfd_byte *loc; | |
c7e2358a | 1113 | bfd_boolean skip; |
7ba29e2a NC |
1114 | |
1115 | /* When generating a shared object, these relocations | |
1116 | are copied into the output file to be resolved at run | |
1117 | time. */ | |
1118 | ||
1119 | BFD_ASSERT (sreloc != NULL); | |
1120 | ||
1121 | skip = FALSE; | |
1122 | ||
1123 | outrel.r_offset = | |
1124 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
1125 | rel->r_offset); | |
1126 | if (outrel.r_offset == (bfd_vma) -1) | |
1127 | skip = TRUE; | |
1128 | else if (outrel.r_offset == (bfd_vma) -2) | |
c7e2358a | 1129 | skip = TRUE; |
7ba29e2a NC |
1130 | outrel.r_offset += (input_section->output_section->vma |
1131 | + input_section->output_offset); | |
1132 | ||
1133 | if (skip) | |
1134 | memset (&outrel, 0, sizeof outrel); | |
1135 | /* h->dynindx may be -1 if the symbol was marked to | |
1136 | become local. */ | |
1137 | else if (h != NULL | |
1138 | && ((! info->symbolic && h->dynindx != -1) | |
1139 | || !h->def_regular)) | |
1140 | { | |
1141 | BFD_ASSERT (h->dynindx != -1); | |
1142 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
1143 | outrel.r_addend = addend; | |
1144 | } | |
1145 | else | |
1146 | { | |
1147 | if (r_type == R_MICROBLAZE_32) | |
1148 | { | |
1149 | outrel.r_info = ELF32_R_INFO (0, R_MICROBLAZE_REL); | |
1150 | outrel.r_addend = relocation + addend; | |
1151 | } | |
1152 | else | |
1153 | { | |
1154 | BFD_FAIL (); | |
1155 | (*_bfd_error_handler) | |
1156 | (_("%B: probably compiled without -fPIC?"), | |
1157 | input_bfd); | |
1158 | bfd_set_error (bfd_error_bad_value); | |
1159 | return FALSE; | |
1160 | } | |
1161 | } | |
1162 | ||
1163 | loc = sreloc->contents; | |
1164 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1165 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
1166 | break; | |
1167 | } | |
1168 | else | |
1169 | { | |
1170 | relocation += addend; | |
1171 | if (r_type == R_MICROBLAZE_32) | |
1172 | bfd_put_32 (input_bfd, relocation, contents + offset); | |
1173 | else | |
1174 | { | |
1175 | if (r_type == R_MICROBLAZE_64_PCREL) | |
1176 | relocation -= (input_section->output_section->vma | |
1177 | + input_section->output_offset | |
1178 | + offset + INST_WORD_SIZE); | |
1179 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
f23200ad | 1180 | contents + offset + endian); |
7ba29e2a | 1181 | bfd_put_16 (input_bfd, relocation & 0xffff, |
f23200ad | 1182 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1183 | } |
1184 | break; | |
1185 | } | |
1186 | } | |
1187 | ||
1188 | default : | |
1189 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
1190 | contents, offset, | |
1191 | relocation, addend); | |
1192 | break; | |
1193 | } | |
1194 | } | |
1195 | ||
1196 | check_reloc: | |
1197 | ||
1198 | if (r != bfd_reloc_ok) | |
1199 | { | |
1200 | /* FIXME: This should be generic enough to go in a utility. */ | |
1201 | const char *name; | |
1202 | ||
1203 | if (h != NULL) | |
1204 | name = h->root.root.string; | |
1205 | else | |
1206 | { | |
1207 | name = (bfd_elf_string_from_elf_section | |
1208 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
1209 | if (name == NULL || *name == '\0') | |
1210 | name = bfd_section_name (input_bfd, sec); | |
1211 | } | |
1212 | ||
1213 | if (errmsg != NULL) | |
1214 | goto common_error; | |
1215 | ||
1216 | switch (r) | |
1217 | { | |
1218 | case bfd_reloc_overflow: | |
1219 | if (!((*info->callbacks->reloc_overflow) | |
1220 | (info, (h ? &h->root : NULL), name, howto->name, | |
1221 | (bfd_vma) 0, input_bfd, input_section, offset))) | |
1222 | return FALSE; | |
1223 | break; | |
1224 | ||
1225 | case bfd_reloc_undefined: | |
1226 | if (!((*info->callbacks->undefined_symbol) | |
1227 | (info, name, input_bfd, input_section, offset, TRUE))) | |
1228 | return FALSE; | |
1229 | break; | |
1230 | ||
1231 | case bfd_reloc_outofrange: | |
1232 | errmsg = _("internal error: out of range error"); | |
1233 | goto common_error; | |
1234 | ||
1235 | case bfd_reloc_notsupported: | |
1236 | errmsg = _("internal error: unsupported relocation error"); | |
1237 | goto common_error; | |
1238 | ||
1239 | case bfd_reloc_dangerous: | |
1240 | errmsg = _("internal error: dangerous error"); | |
1241 | goto common_error; | |
1242 | ||
1243 | default: | |
1244 | errmsg = _("internal error: unknown error"); | |
1245 | /* Fall through. */ | |
1246 | common_error: | |
1247 | if (!((*info->callbacks->warning) | |
1248 | (info, errmsg, name, input_bfd, input_section, offset))) | |
1249 | return FALSE; | |
1250 | break; | |
1251 | } | |
1252 | } | |
1253 | } | |
1254 | ||
1255 | return ret; | |
1256 | } | |
f23200ad ME |
1257 | |
1258 | /* Merge backend specific data from an object file to the output | |
1259 | object file when linking. | |
1260 | ||
1261 | Note: We only use this hook to catch endian mismatches. */ | |
1262 | static bfd_boolean | |
1263 | microblaze_elf_merge_private_bfd_data (bfd * ibfd, bfd * obfd) | |
1264 | { | |
1265 | /* Check if we have the same endianess. */ | |
1266 | if (! _bfd_generic_verify_endian_match (ibfd, obfd)) | |
1267 | return FALSE; | |
1268 | ||
1269 | return TRUE; | |
1270 | } | |
1271 | ||
7ba29e2a NC |
1272 | \f |
1273 | /* Calculate fixup value for reference. */ | |
1274 | ||
1275 | static int | |
1276 | calc_fixup (bfd_vma addr, asection *sec) | |
1277 | { | |
1278 | int i, fixup = 0; | |
1279 | ||
1280 | if (sec == NULL || sec->relax == NULL) | |
1281 | return 0; | |
1282 | ||
1283 | /* Look for addr in relax table, total fixup value. */ | |
1284 | for (i = 0; i < sec->relax_count; i++) | |
1285 | { | |
1286 | if (addr <= sec->relax[i].addr) | |
1287 | break; | |
1288 | fixup += sec->relax[i].size; | |
1289 | } | |
1290 | ||
1291 | return fixup; | |
1292 | } | |
1293 | ||
f23200ad ME |
1294 | /* Read-modify-write into the bfd, an immediate value into appropriate fields of |
1295 | a 32-bit instruction. */ | |
1296 | static void | |
1297 | microblaze_bfd_write_imm_value_32 (bfd *abfd, bfd_byte *bfd_addr, bfd_vma val) | |
1298 | { | |
1299 | unsigned long instr = bfd_get_32 (abfd, bfd_addr); | |
1300 | instr &= ~0x0000ffff; | |
1301 | instr |= (val & 0x0000ffff); | |
1302 | bfd_put_32 (abfd, instr, bfd_addr); | |
1303 | } | |
1304 | ||
1305 | /* Read-modify-write into the bfd, an immediate value into appropriate fields of | |
1306 | two consecutive 32-bit instructions. */ | |
1307 | static void | |
1308 | microblaze_bfd_write_imm_value_64 (bfd *abfd, bfd_byte *bfd_addr, bfd_vma val) | |
1309 | { | |
1310 | unsigned long instr_hi; | |
1311 | unsigned long instr_lo; | |
1312 | ||
1313 | instr_hi = bfd_get_32 (abfd, bfd_addr); | |
1314 | instr_hi &= ~0x0000ffff; | |
1315 | instr_hi |= ((val >> 16) & 0x0000ffff); | |
1316 | bfd_put_32 (abfd, instr_hi, bfd_addr); | |
1317 | ||
1318 | instr_lo = bfd_get_32 (abfd, bfd_addr + INST_WORD_SIZE); | |
1319 | instr_lo &= ~0x0000ffff; | |
1320 | instr_lo |= (val & 0x0000ffff); | |
1321 | bfd_put_32 (abfd, instr_lo, bfd_addr + INST_WORD_SIZE); | |
1322 | } | |
1323 | ||
7ba29e2a NC |
1324 | static bfd_boolean |
1325 | microblaze_elf_relax_section (bfd *abfd, | |
1326 | asection *sec, | |
1327 | struct bfd_link_info *link_info, | |
1328 | bfd_boolean *again) | |
1329 | { | |
1330 | Elf_Internal_Shdr *symtab_hdr; | |
1331 | Elf_Internal_Rela *internal_relocs; | |
1332 | Elf_Internal_Rela *free_relocs = NULL; | |
1333 | Elf_Internal_Rela *irel, *irelend; | |
1334 | bfd_byte *contents = NULL; | |
1335 | bfd_byte *free_contents = NULL; | |
1336 | int rel_count; | |
1337 | unsigned int shndx; | |
91d6fa6a | 1338 | int i, sym_index; |
7ba29e2a NC |
1339 | asection *o; |
1340 | struct elf_link_hash_entry *sym_hash; | |
1341 | Elf_Internal_Sym *isymbuf, *isymend; | |
1342 | Elf_Internal_Sym *isym; | |
1343 | int symcount; | |
1344 | int offset; | |
1345 | bfd_vma src, dest; | |
1346 | ||
1347 | /* We only do this once per section. We may be able to delete some code | |
1348 | by running multiple passes, but it is not worth it. */ | |
1349 | *again = FALSE; | |
1350 | ||
1351 | /* Only do this for a text section. */ | |
1352 | if (link_info->relocatable | |
1353 | || (sec->flags & SEC_RELOC) == 0 | |
f23200ad ME |
1354 | || (sec->reloc_count == 0) |
1355 | || (sec->flags & SEC_CODE) == 0) | |
7ba29e2a NC |
1356 | return TRUE; |
1357 | ||
1358 | BFD_ASSERT ((sec->size > 0) || (sec->rawsize > 0)); | |
1359 | ||
1360 | /* If this is the first time we have been called for this section, | |
1361 | initialize the cooked size. */ | |
1362 | if (sec->size == 0) | |
1363 | sec->size = sec->rawsize; | |
1364 | ||
1365 | /* Get symbols for this section. */ | |
1366 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1367 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1368 | symcount = symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
1369 | if (isymbuf == NULL) | |
1370 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, symcount, | |
1371 | 0, NULL, NULL, NULL); | |
1372 | BFD_ASSERT (isymbuf != NULL); | |
1373 | ||
91d6fa6a | 1374 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, link_info->keep_memory); |
7ba29e2a NC |
1375 | if (internal_relocs == NULL) |
1376 | goto error_return; | |
1377 | if (! link_info->keep_memory) | |
1378 | free_relocs = internal_relocs; | |
1379 | ||
1380 | sec->relax = (struct relax_table *) bfd_malloc ((sec->reloc_count + 1) | |
1381 | * sizeof (struct relax_table)); | |
1382 | if (sec->relax == NULL) | |
1383 | goto error_return; | |
1384 | sec->relax_count = 0; | |
1385 | ||
1386 | irelend = internal_relocs + sec->reloc_count; | |
1387 | rel_count = 0; | |
1388 | for (irel = internal_relocs; irel < irelend; irel++, rel_count++) | |
1389 | { | |
1390 | bfd_vma symval; | |
1391 | if ((ELF32_R_TYPE (irel->r_info) != (int) R_MICROBLAZE_64_PCREL) | |
1392 | && (ELF32_R_TYPE (irel->r_info) != (int) R_MICROBLAZE_64 )) | |
1393 | continue; /* Can't delete this reloc. */ | |
1394 | ||
1395 | /* Get the section contents. */ | |
1396 | if (contents == NULL) | |
1397 | { | |
1398 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
1399 | contents = elf_section_data (sec)->this_hdr.contents; | |
1400 | else | |
1401 | { | |
1402 | contents = (bfd_byte *) bfd_malloc (sec->size); | |
1403 | if (contents == NULL) | |
1404 | goto error_return; | |
1405 | free_contents = contents; | |
1406 | ||
1407 | if (!bfd_get_section_contents (abfd, sec, contents, | |
1408 | (file_ptr) 0, sec->size)) | |
1409 | goto error_return; | |
1410 | elf_section_data (sec)->this_hdr.contents = contents; | |
1411 | } | |
1412 | } | |
1413 | ||
1414 | /* Get the value of the symbol referred to by the reloc. */ | |
1415 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
1416 | { | |
1417 | /* A local symbol. */ | |
7ba29e2a NC |
1418 | asection *sym_sec; |
1419 | ||
1420 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
1421 | if (isym->st_shndx == SHN_UNDEF) | |
1422 | sym_sec = bfd_und_section_ptr; | |
1423 | else if (isym->st_shndx == SHN_ABS) | |
1424 | sym_sec = bfd_abs_section_ptr; | |
1425 | else if (isym->st_shndx == SHN_COMMON) | |
1426 | sym_sec = bfd_com_section_ptr; | |
1427 | else | |
1428 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
1429 | ||
1430 | symval = _bfd_elf_rela_local_sym (abfd, isym, &sym_sec, irel); | |
1431 | } | |
1432 | else | |
1433 | { | |
1434 | unsigned long indx; | |
1435 | struct elf_link_hash_entry *h; | |
1436 | ||
1437 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
1438 | h = elf_sym_hashes (abfd)[indx]; | |
1439 | BFD_ASSERT (h != NULL); | |
1440 | ||
1441 | if (h->root.type != bfd_link_hash_defined | |
1442 | && h->root.type != bfd_link_hash_defweak) | |
1443 | /* This appears to be a reference to an undefined | |
1444 | symbol. Just ignore it--it will be caught by the | |
1445 | regular reloc processing. */ | |
1446 | continue; | |
1447 | ||
1448 | symval = (h->root.u.def.value | |
1449 | + h->root.u.def.section->output_section->vma | |
1450 | + h->root.u.def.section->output_offset); | |
1451 | } | |
1452 | ||
1453 | /* If this is a PC-relative reloc, subtract the instr offset from | |
1454 | the symbol value. */ | |
1455 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MICROBLAZE_64_PCREL) | |
1456 | { | |
1457 | symval = symval + irel->r_addend | |
1458 | - (irel->r_offset | |
1459 | + sec->output_section->vma | |
1460 | + sec->output_offset); | |
1461 | } | |
1462 | else | |
1463 | symval += irel->r_addend; | |
1464 | ||
1465 | if ((symval & 0xffff8000) == 0 | |
1466 | || (symval & 0xffff8000) == 0xffff8000) | |
1467 | { | |
1468 | /* We can delete this instruction. */ | |
1469 | sec->relax[sec->relax_count].addr = irel->r_offset; | |
1470 | sec->relax[sec->relax_count].size = INST_WORD_SIZE; | |
1471 | sec->relax_count++; | |
1472 | ||
1473 | /* Rewrite relocation type. */ | |
1474 | switch ((enum elf_microblaze_reloc_type) ELF32_R_TYPE (irel->r_info)) | |
1475 | { | |
1476 | case R_MICROBLAZE_64_PCREL: | |
1477 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1478 | (int) R_MICROBLAZE_32_PCREL_LO); | |
1479 | break; | |
1480 | case R_MICROBLAZE_64: | |
1481 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1482 | (int) R_MICROBLAZE_32_LO); | |
1483 | break; | |
1484 | default: | |
1485 | /* Cannot happen. */ | |
1486 | BFD_ASSERT (FALSE); | |
1487 | } | |
1488 | } | |
1489 | } /* Loop through all relocations. */ | |
1490 | ||
1491 | /* Loop through the relocs again, and see if anything needs to change. */ | |
1492 | if (sec->relax_count > 0) | |
1493 | { | |
1494 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
1495 | rel_count = 0; | |
1496 | sec->relax[sec->relax_count].addr = sec->size; | |
1497 | ||
1498 | for (irel = internal_relocs; irel < irelend; irel++, rel_count++) | |
1499 | { | |
1500 | bfd_vma nraddr; | |
1501 | ||
1502 | /* Get the new reloc address. */ | |
1503 | nraddr = irel->r_offset - calc_fixup (irel->r_offset, sec); | |
1504 | switch ((enum elf_microblaze_reloc_type) ELF32_R_TYPE (irel->r_info)) | |
1505 | { | |
1506 | default: | |
1507 | break; | |
1508 | case R_MICROBLAZE_64_PCREL: | |
1509 | break; | |
1510 | case R_MICROBLAZE_64: | |
1511 | case R_MICROBLAZE_32_LO: | |
1512 | /* If this reloc is against a symbol defined in this | |
1513 | section, we must check the addend to see it will put the value in | |
1514 | range to be adjusted, and hence must be changed. */ | |
1515 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
1516 | { | |
7ba29e2a NC |
1517 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
1518 | /* Only handle relocs against .text. */ | |
1519 | if (isym->st_shndx == shndx | |
1520 | && ELF32_ST_TYPE (isym->st_info) == STT_SECTION) | |
1521 | irel->r_addend -= calc_fixup (irel->r_addend, sec); | |
1522 | } | |
1523 | break; | |
1524 | case R_MICROBLAZE_NONE: | |
1525 | { | |
1526 | /* This was a PC-relative instruction that was | |
1527 | completely resolved. */ | |
1528 | int sfix, efix; | |
1529 | bfd_vma target_address; | |
1530 | target_address = irel->r_addend + irel->r_offset; | |
1531 | sfix = calc_fixup (irel->r_offset, sec); | |
1532 | efix = calc_fixup (target_address, sec); | |
1533 | irel->r_addend -= (efix - sfix); | |
1534 | /* Should use HOWTO. */ | |
f23200ad ME |
1535 | microblaze_bfd_write_imm_value_32 (abfd, contents + irel->r_offset, |
1536 | irel->r_addend); | |
7ba29e2a NC |
1537 | } |
1538 | break; | |
1539 | case R_MICROBLAZE_64_NONE: | |
1540 | { | |
1541 | /* This was a PC-relative 64-bit instruction that was | |
1542 | completely resolved. */ | |
1543 | int sfix, efix; | |
1544 | bfd_vma target_address; | |
1545 | target_address = irel->r_addend + irel->r_offset + INST_WORD_SIZE; | |
1546 | sfix = calc_fixup (irel->r_offset + INST_WORD_SIZE, sec); | |
1547 | efix = calc_fixup (target_address, sec); | |
1548 | irel->r_addend -= (efix - sfix); | |
f23200ad ME |
1549 | microblaze_bfd_write_imm_value_32 (abfd, contents + irel->r_offset |
1550 | + INST_WORD_SIZE, irel->r_addend); | |
7ba29e2a NC |
1551 | } |
1552 | break; | |
1553 | } | |
1554 | irel->r_offset = nraddr; | |
1555 | } /* Change all relocs in this section. */ | |
1556 | ||
1557 | /* Look through all other sections. */ | |
1558 | for (o = abfd->sections; o != NULL; o = o->next) | |
1559 | { | |
91d6fa6a | 1560 | Elf_Internal_Rela *irelocs; |
7ba29e2a NC |
1561 | Elf_Internal_Rela *irelscan, *irelscanend; |
1562 | bfd_byte *ocontents; | |
1563 | ||
1564 | if (o == sec | |
1565 | || (o->flags & SEC_RELOC) == 0 | |
1566 | || o->reloc_count == 0) | |
1567 | continue; | |
1568 | ||
1569 | /* We always cache the relocs. Perhaps, if info->keep_memory is | |
1570 | FALSE, we should free them, if we are permitted to. */ | |
1571 | ||
91d6fa6a NC |
1572 | irelocs = _bfd_elf_link_read_relocs (abfd, o, NULL, NULL, TRUE); |
1573 | if (irelocs == NULL) | |
7ba29e2a NC |
1574 | goto error_return; |
1575 | ||
1576 | ocontents = NULL; | |
91d6fa6a NC |
1577 | irelscanend = irelocs + o->reloc_count; |
1578 | for (irelscan = irelocs; irelscan < irelscanend; irelscan++) | |
7ba29e2a NC |
1579 | { |
1580 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32) | |
1581 | { | |
1582 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
1583 | ||
1584 | /* Look at the reloc only if the value has been resolved. */ | |
1585 | if (isym->st_shndx == shndx | |
1586 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
1587 | { | |
1588 | if (ocontents == NULL) | |
1589 | { | |
1590 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1591 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1592 | else | |
1593 | { | |
1594 | /* We always cache the section contents. | |
1595 | Perhaps, if info->keep_memory is FALSE, we | |
1596 | should free them, if we are permitted to. */ | |
1597 | if (o->rawsize == 0) | |
1598 | o->rawsize = o->size; | |
1599 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
1600 | if (ocontents == NULL) | |
1601 | goto error_return; | |
1602 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
1603 | (file_ptr) 0, | |
1604 | o->rawsize)) | |
1605 | goto error_return; | |
1606 | elf_section_data (o)->this_hdr.contents = ocontents; | |
1607 | } | |
1608 | ||
1609 | } | |
1610 | irelscan->r_addend -= calc_fixup (irelscan->r_addend, sec); | |
1611 | } | |
1612 | else if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32_SYM_OP_SYM) | |
1613 | { | |
1614 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
1615 | ||
1616 | /* Look at the reloc only if the value has been resolved. */ | |
1617 | if (ocontents == NULL) | |
1618 | { | |
1619 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1620 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1621 | else | |
1622 | { | |
1623 | /* We always cache the section contents. | |
1624 | Perhaps, if info->keep_memory is FALSE, we | |
1625 | should free them, if we are permitted to. */ | |
1626 | ||
1627 | if (o->rawsize == 0) | |
1628 | o->rawsize = o->size; | |
1629 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
1630 | if (ocontents == NULL) | |
1631 | goto error_return; | |
1632 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
1633 | (file_ptr) 0, | |
1634 | o->rawsize)) | |
1635 | goto error_return; | |
1636 | elf_section_data (o)->this_hdr.contents = ocontents; | |
1637 | } | |
1638 | } | |
1639 | irelscan->r_addend -= calc_fixup (irel->r_addend | |
1640 | + isym->st_value, | |
1641 | sec); | |
1642 | } | |
1643 | } | |
1644 | else if ((ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32_PCREL_LO) | |
1645 | || (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32_LO)) | |
1646 | { | |
1647 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
1648 | ||
1649 | /* Look at the reloc only if the value has been resolved. */ | |
1650 | if (isym->st_shndx == shndx | |
1651 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
1652 | { | |
1653 | bfd_vma immediate; | |
1654 | bfd_vma target_address; | |
1655 | ||
1656 | if (ocontents == NULL) | |
1657 | { | |
1658 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1659 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1660 | else | |
1661 | { | |
1662 | /* We always cache the section contents. | |
1663 | Perhaps, if info->keep_memory is FALSE, we | |
1664 | should free them, if we are permitted to. */ | |
1665 | if (o->rawsize == 0) | |
1666 | o->rawsize = o->size; | |
1667 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
1668 | if (ocontents == NULL) | |
1669 | goto error_return; | |
1670 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
1671 | (file_ptr) 0, | |
1672 | o->rawsize)) | |
1673 | goto error_return; | |
1674 | elf_section_data (o)->this_hdr.contents = ocontents; | |
1675 | } | |
1676 | } | |
1677 | ||
f23200ad ME |
1678 | unsigned long instr = bfd_get_32 (abfd, ocontents + irelscan->r_offset); |
1679 | immediate = instr & 0x0000ffff; | |
7ba29e2a NC |
1680 | target_address = immediate; |
1681 | offset = calc_fixup (target_address, sec); | |
1682 | immediate -= offset; | |
1683 | irelscan->r_addend -= offset; | |
f23200ad ME |
1684 | microblaze_bfd_write_imm_value_32 (abfd, ocontents + irelscan->r_offset, |
1685 | irelscan->r_addend); | |
7ba29e2a NC |
1686 | } |
1687 | } | |
1688 | ||
1689 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_64) | |
1690 | { | |
1691 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
1692 | ||
1693 | /* Look at the reloc only if the value has been resolved. */ | |
1694 | if (isym->st_shndx == shndx | |
1695 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
1696 | { | |
1697 | bfd_vma immediate; | |
1698 | ||
1699 | if (ocontents == NULL) | |
1700 | { | |
1701 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1702 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1703 | else | |
1704 | { | |
1705 | /* We always cache the section contents. | |
1706 | Perhaps, if info->keep_memory is FALSE, we | |
1707 | should free them, if we are permitted to. */ | |
1708 | ||
1709 | if (o->rawsize == 0) | |
1710 | o->rawsize = o->size; | |
1711 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
1712 | if (ocontents == NULL) | |
1713 | goto error_return; | |
1714 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
1715 | (file_ptr) 0, | |
1716 | o->rawsize)) | |
1717 | goto error_return; | |
1718 | elf_section_data (o)->this_hdr.contents = ocontents; | |
1719 | } | |
1720 | } | |
f23200ad ME |
1721 | unsigned long instr_hi = bfd_get_32 (abfd, ocontents |
1722 | + irelscan->r_offset); | |
1723 | unsigned long instr_lo = bfd_get_32 (abfd, ocontents | |
1724 | + irelscan->r_offset | |
1725 | + INST_WORD_SIZE); | |
1726 | immediate = (instr_hi & 0x0000ffff) << 16; | |
1727 | immediate |= (instr_lo & 0x0000ffff); | |
7ba29e2a NC |
1728 | offset = calc_fixup (irelscan->r_addend, sec); |
1729 | immediate -= offset; | |
1730 | irelscan->r_addend -= offset; | |
1731 | } | |
1732 | } | |
1733 | else if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_64_PCREL) | |
1734 | { | |
1735 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
1736 | ||
1737 | /* Look at the reloc only if the value has been resolved. */ | |
1738 | if (isym->st_shndx == shndx | |
1739 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
1740 | { | |
1741 | bfd_vma immediate; | |
1742 | bfd_vma target_address; | |
1743 | ||
1744 | if (ocontents == NULL) | |
1745 | { | |
1746 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1747 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1748 | else | |
1749 | { | |
1750 | /* We always cache the section contents. | |
1751 | Perhaps, if info->keep_memory is FALSE, we | |
1752 | should free them, if we are permitted to. */ | |
1753 | if (o->rawsize == 0) | |
1754 | o->rawsize = o->size; | |
1755 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
1756 | if (ocontents == NULL) | |
1757 | goto error_return; | |
1758 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
1759 | (file_ptr) 0, | |
1760 | o->rawsize)) | |
1761 | goto error_return; | |
1762 | elf_section_data (o)->this_hdr.contents = ocontents; | |
1763 | } | |
1764 | } | |
f23200ad ME |
1765 | unsigned long instr_hi = bfd_get_32 (abfd, ocontents |
1766 | + irelscan->r_offset); | |
1767 | unsigned long instr_lo = bfd_get_32 (abfd, ocontents | |
1768 | + irelscan->r_offset | |
1769 | + INST_WORD_SIZE); | |
1770 | immediate = (instr_hi & 0x0000ffff) << 16; | |
1771 | immediate |= (instr_lo & 0x0000ffff); | |
7ba29e2a NC |
1772 | target_address = immediate; |
1773 | offset = calc_fixup (target_address, sec); | |
1774 | immediate -= offset; | |
1775 | irelscan->r_addend -= offset; | |
f23200ad ME |
1776 | microblaze_bfd_write_imm_value_64 (abfd, ocontents |
1777 | + irelscan->r_offset, immediate); | |
7ba29e2a NC |
1778 | } |
1779 | } | |
1780 | } | |
1781 | } | |
1782 | ||
1783 | /* Adjust the local symbols defined in this section. */ | |
1784 | isymend = isymbuf + symtab_hdr->sh_info; | |
1785 | for (isym = isymbuf; isym < isymend; isym++) | |
1786 | { | |
1787 | if (isym->st_shndx == shndx) | |
1788 | isym->st_value =- calc_fixup (isym->st_value, sec); | |
1789 | } | |
1790 | ||
1791 | /* Now adjust the global symbols defined in this section. */ | |
1792 | isym = isymbuf + symtab_hdr->sh_info; | |
1793 | isymend = isymbuf + (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)); | |
91d6fa6a | 1794 | for (sym_index = 0; isym < isymend; isym++, sym_index++) |
7ba29e2a | 1795 | { |
91d6fa6a | 1796 | sym_hash = elf_sym_hashes (abfd)[sym_index]; |
7ba29e2a NC |
1797 | if (isym->st_shndx == shndx |
1798 | && (sym_hash->root.type == bfd_link_hash_defined | |
1799 | || sym_hash->root.type == bfd_link_hash_defweak) | |
1800 | && sym_hash->root.u.def.section == sec) | |
1801 | { | |
1802 | sym_hash->root.u.def.value -= calc_fixup (sym_hash->root.u.def.value, | |
1803 | sec); | |
1804 | } | |
1805 | } | |
1806 | ||
1807 | /* Physically move the code and change the cooked size. */ | |
1808 | dest = sec->relax[0].addr; | |
1809 | for (i = 0; i < sec->relax_count; i++) | |
1810 | { | |
1811 | int len; | |
1812 | src = sec->relax[i].addr + sec->relax[i].size; | |
1813 | len = sec->relax[i+1].addr - sec->relax[i].addr - sec->relax[i].size; | |
1814 | ||
1815 | memmove (contents + dest, contents + src, len); | |
1816 | sec->size -= sec->relax[i].size; | |
1817 | dest += len; | |
1818 | } | |
1819 | ||
1820 | elf_section_data (sec)->relocs = internal_relocs; | |
1821 | free_relocs = NULL; | |
1822 | ||
1823 | elf_section_data (sec)->this_hdr.contents = contents; | |
1824 | free_contents = NULL; | |
1825 | ||
1826 | symtab_hdr->contents = (bfd_byte *) isymbuf; | |
1827 | } | |
1828 | ||
1829 | if (free_relocs != NULL) | |
1830 | { | |
1831 | free (free_relocs); | |
1832 | free_relocs = NULL; | |
1833 | } | |
1834 | ||
1835 | if (free_contents != NULL) | |
1836 | { | |
1837 | if (!link_info->keep_memory) | |
1838 | free (free_contents); | |
1839 | else | |
1840 | /* Cache the section contents for elf_link_input_bfd. */ | |
1841 | elf_section_data (sec)->this_hdr.contents = contents; | |
1842 | free_contents = NULL; | |
1843 | } | |
1844 | ||
1845 | if (sec->relax_count == 0) | |
1846 | { | |
f23200ad | 1847 | *again = FALSE; |
7ba29e2a NC |
1848 | free (sec->relax); |
1849 | sec->relax = NULL; | |
1850 | } | |
f23200ad ME |
1851 | else |
1852 | *again = TRUE; | |
7ba29e2a NC |
1853 | return TRUE; |
1854 | ||
1855 | error_return: | |
1856 | if (free_relocs != NULL) | |
1857 | free (free_relocs); | |
1858 | if (free_contents != NULL) | |
1859 | free (free_contents); | |
1860 | if (sec->relax != NULL) | |
1861 | { | |
1862 | free (sec->relax); | |
1863 | sec->relax = NULL; | |
1864 | sec->relax_count = 0; | |
1865 | } | |
1866 | return FALSE; | |
1867 | } | |
1868 | ||
1869 | /* Return the section that should be marked against GC for a given | |
1870 | relocation. */ | |
1871 | ||
1872 | static asection * | |
1873 | microblaze_elf_gc_mark_hook (asection *sec, | |
fb34365b | 1874 | struct bfd_link_info * info, |
7ba29e2a NC |
1875 | Elf_Internal_Rela * rel, |
1876 | struct elf_link_hash_entry * h, | |
1877 | Elf_Internal_Sym * sym) | |
1878 | { | |
1879 | if (h != NULL) | |
fb34365b AM |
1880 | switch (ELF32_R_TYPE (rel->r_info)) |
1881 | { | |
1882 | case R_MICROBLAZE_GNU_VTINHERIT: | |
1883 | case R_MICROBLAZE_GNU_VTENTRY: | |
1884 | return NULL; | |
1885 | } | |
1886 | ||
1887 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
7ba29e2a NC |
1888 | } |
1889 | ||
1890 | /* Update the got entry reference counts for the section being removed. */ | |
1891 | ||
1892 | static bfd_boolean | |
1893 | microblaze_elf_gc_sweep_hook (bfd * abfd ATTRIBUTE_UNUSED, | |
1894 | struct bfd_link_info * info ATTRIBUTE_UNUSED, | |
1895 | asection * sec ATTRIBUTE_UNUSED, | |
1896 | const Elf_Internal_Rela * relocs ATTRIBUTE_UNUSED) | |
1897 | { | |
1898 | return TRUE; | |
1899 | } | |
1900 | ||
1901 | /* PIC support. */ | |
1902 | ||
1903 | #define PLT_ENTRY_SIZE 16 | |
1904 | ||
1905 | #define PLT_ENTRY_WORD_0 0xb0000000 /* "imm 0". */ | |
1906 | #define PLT_ENTRY_WORD_1 0xe9940000 /* "lwi r12,r20,0" - relocated to lwi r12,r20,func@GOT. */ | |
1907 | #define PLT_ENTRY_WORD_1_NOPIC 0xe9800000 /* "lwi r12,r0,0" - non-PIC object. */ | |
1908 | #define PLT_ENTRY_WORD_2 0x98186000 /* "brad r12". */ | |
1909 | #define PLT_ENTRY_WORD_3 0x80000000 /* "nop". */ | |
1910 | ||
1911 | /* Create .got, .gotplt, and .rela.got sections in DYNOBJ, and set up | |
1912 | shortcuts to them in our hash table. */ | |
1913 | ||
1914 | static bfd_boolean | |
1915 | create_got_section (bfd *dynobj, struct bfd_link_info *info) | |
1916 | { | |
1917 | struct elf32_mb_link_hash_table *htab; | |
1918 | ||
1919 | if (! _bfd_elf_create_got_section (dynobj, info)) | |
1920 | return FALSE; | |
1921 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
1922 | if (htab == NULL) |
1923 | return FALSE; | |
1924 | ||
3d4d4302 AM |
1925 | htab->sgot = bfd_get_linker_section (dynobj, ".got"); |
1926 | htab->sgotplt = bfd_get_linker_section (dynobj, ".got.plt"); | |
7ba29e2a NC |
1927 | if (!htab->sgot || !htab->sgotplt) |
1928 | return FALSE; | |
1929 | ||
3d4d4302 AM |
1930 | if ((htab->srelgot = bfd_get_linker_section (dynobj, ".rela.got")) == NULL) |
1931 | htab->srelgot = bfd_make_section_anyway (dynobj, ".rela.got"); | |
7ba29e2a NC |
1932 | if (htab->srelgot == NULL |
1933 | || ! bfd_set_section_flags (dynobj, htab->srelgot, SEC_ALLOC | |
1934 | | SEC_LOAD | |
1935 | | SEC_HAS_CONTENTS | |
1936 | | SEC_IN_MEMORY | |
1937 | | SEC_LINKER_CREATED | |
1938 | | SEC_READONLY) | |
1939 | || ! bfd_set_section_alignment (dynobj, htab->srelgot, 2)) | |
1940 | return FALSE; | |
1941 | return TRUE; | |
1942 | } | |
1943 | ||
1944 | /* Look through the relocs for a section during the first phase. */ | |
1945 | ||
1946 | static bfd_boolean | |
1947 | microblaze_elf_check_relocs (bfd * abfd, | |
1948 | struct bfd_link_info * info, | |
1949 | asection * sec, | |
1950 | const Elf_Internal_Rela * relocs) | |
1951 | { | |
1952 | Elf_Internal_Shdr * symtab_hdr; | |
1953 | struct elf_link_hash_entry ** sym_hashes; | |
1954 | struct elf_link_hash_entry ** sym_hashes_end; | |
1955 | const Elf_Internal_Rela * rel; | |
1956 | const Elf_Internal_Rela * rel_end; | |
1957 | struct elf32_mb_link_hash_table *htab; | |
7ba29e2a NC |
1958 | asection *sreloc = NULL; |
1959 | ||
1960 | if (info->relocatable) | |
1961 | return TRUE; | |
1962 | ||
1963 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
1964 | if (htab == NULL) |
1965 | return FALSE; | |
1966 | ||
7ba29e2a NC |
1967 | symtab_hdr = & elf_tdata (abfd)->symtab_hdr; |
1968 | sym_hashes = elf_sym_hashes (abfd); | |
1969 | sym_hashes_end = sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
1970 | if (!elf_bad_symtab (abfd)) | |
1971 | sym_hashes_end -= symtab_hdr->sh_info; | |
1972 | ||
1973 | rel_end = relocs + sec->reloc_count; | |
1974 | ||
1975 | for (rel = relocs; rel < rel_end; rel++) | |
1976 | { | |
1977 | unsigned int r_type; | |
1978 | struct elf_link_hash_entry * h; | |
1979 | unsigned long r_symndx; | |
1980 | ||
1981 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1982 | r_type = ELF32_R_TYPE (rel->r_info); | |
1983 | ||
1984 | if (r_symndx < symtab_hdr->sh_info) | |
1985 | h = NULL; | |
1986 | else | |
1987 | h = sym_hashes [r_symndx - symtab_hdr->sh_info]; | |
1988 | ||
1989 | switch (r_type) | |
1990 | { | |
1991 | /* This relocation describes the C++ object vtable hierarchy. | |
1992 | Reconstruct it for later use during GC. */ | |
1993 | case R_MICROBLAZE_GNU_VTINHERIT: | |
1994 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
1995 | return FALSE; | |
1996 | break; | |
1997 | ||
1998 | /* This relocation describes which C++ vtable entries are actually | |
1999 | used. Record for later use during GC. */ | |
2000 | case R_MICROBLAZE_GNU_VTENTRY: | |
2001 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
2002 | return FALSE; | |
2003 | break; | |
2004 | ||
2005 | /* This relocation requires .plt entry. */ | |
2006 | case R_MICROBLAZE_PLT_64: | |
2007 | if (h != NULL) | |
2008 | { | |
2009 | h->needs_plt = 1; | |
2010 | h->plt.refcount += 1; | |
2011 | } | |
2012 | break; | |
2013 | ||
2014 | /* This relocation requires .got entry. */ | |
2015 | case R_MICROBLAZE_GOT_64: | |
2016 | if (htab->sgot == NULL) | |
2017 | { | |
2018 | if (htab->elf.dynobj == NULL) | |
2019 | htab->elf.dynobj = abfd; | |
2020 | if (!create_got_section (htab->elf.dynobj, info)) | |
2021 | return FALSE; | |
2022 | } | |
2023 | if (h != NULL) | |
2024 | { | |
2025 | h->got.refcount += 1; | |
2026 | } | |
2027 | else | |
2028 | { | |
2029 | bfd_signed_vma *local_got_refcounts; | |
2030 | ||
2031 | /* This is a global offset table entry for a local symbol. */ | |
2032 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
2033 | if (local_got_refcounts == NULL) | |
2034 | { | |
2035 | bfd_size_type size; | |
2036 | ||
2037 | size = symtab_hdr->sh_info; | |
2038 | size *= sizeof (bfd_signed_vma); | |
2039 | local_got_refcounts = bfd_zalloc (abfd, size); | |
2040 | if (local_got_refcounts == NULL) | |
2041 | return FALSE; | |
2042 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
2043 | } | |
2044 | local_got_refcounts[r_symndx] += 1; | |
2045 | } | |
2046 | break; | |
2047 | ||
2048 | case R_MICROBLAZE_64: | |
2049 | case R_MICROBLAZE_64_PCREL: | |
2050 | case R_MICROBLAZE_32: | |
2051 | { | |
2052 | if (h != NULL && !info->shared) | |
2053 | { | |
2054 | /* we may need a copy reloc. */ | |
2055 | h->non_got_ref = 1; | |
2056 | ||
2057 | /* we may also need a .plt entry. */ | |
2058 | h->plt.refcount += 1; | |
2059 | if (ELF32_R_TYPE (rel->r_info) != R_MICROBLAZE_64_PCREL) | |
2060 | h->pointer_equality_needed = 1; | |
2061 | } | |
2062 | ||
2063 | ||
2064 | /* If we are creating a shared library, and this is a reloc | |
2065 | against a global symbol, or a non PC relative reloc | |
2066 | against a local symbol, then we need to copy the reloc | |
2067 | into the shared library. However, if we are linking with | |
2068 | -Bsymbolic, we do not need to copy a reloc against a | |
2069 | global symbol which is defined in an object we are | |
2070 | including in the link (i.e., DEF_REGULAR is set). At | |
2071 | this point we have not seen all the input files, so it is | |
2072 | possible that DEF_REGULAR is not set now but will be set | |
2073 | later (it is never cleared). In case of a weak definition, | |
2074 | DEF_REGULAR may be cleared later by a strong definition in | |
2075 | a shared library. We account for that possibility below by | |
2076 | storing information in the relocs_copied field of the hash | |
2077 | table entry. A similar situation occurs when creating | |
2078 | shared libraries and symbol visibility changes render the | |
2079 | symbol local. | |
2080 | ||
2081 | If on the other hand, we are creating an executable, we | |
2082 | may need to keep relocations for symbols satisfied by a | |
2083 | dynamic library if we manage to avoid copy relocs for the | |
2084 | symbol. */ | |
2085 | ||
2086 | if ((info->shared | |
2087 | && (sec->flags & SEC_ALLOC) != 0 | |
2088 | && (r_type != R_MICROBLAZE_64_PCREL | |
2089 | || (h != NULL | |
2090 | && (! info->symbolic | |
2091 | || h->root.type == bfd_link_hash_defweak | |
2092 | || !h->def_regular)))) | |
2093 | || (!info->shared | |
2094 | && (sec->flags & SEC_ALLOC) != 0 | |
2095 | && h != NULL | |
2096 | && (h->root.type == bfd_link_hash_defweak | |
2097 | || !h->def_regular))) | |
2098 | { | |
2099 | struct elf32_mb_dyn_relocs *p; | |
2100 | struct elf32_mb_dyn_relocs **head; | |
2101 | ||
2102 | /* When creating a shared object, we must copy these | |
2103 | relocs into the output file. We create a reloc | |
2104 | section in dynobj and make room for the reloc. */ | |
2105 | ||
2106 | if (sreloc == NULL) | |
2107 | { | |
2108 | const char *name; | |
2109 | bfd *dynobj; | |
2110 | unsigned int strndx = elf_elfheader (abfd)->e_shstrndx; | |
d4730f92 | 2111 | unsigned int shnam = _bfd_elf_single_rel_hdr (sec)->sh_name; |
7ba29e2a NC |
2112 | |
2113 | name = bfd_elf_string_from_elf_section (abfd, strndx, shnam); | |
2114 | if (name == NULL) | |
2115 | return FALSE; | |
2116 | ||
2117 | if (strncmp (name, ".rela", 5) != 0 | |
2118 | || strcmp (bfd_get_section_name (abfd, sec), | |
2119 | name + 5) != 0) | |
2120 | { | |
2121 | (*_bfd_error_handler) | |
2122 | (_("%B: bad relocation section name `%s\'"), | |
2123 | abfd, name); | |
2124 | } | |
2125 | ||
2126 | if (htab->elf.dynobj == NULL) | |
2127 | htab->elf.dynobj = abfd; | |
2128 | dynobj = htab->elf.dynobj; | |
2129 | ||
3d4d4302 | 2130 | sreloc = bfd_get_linker_section (dynobj, name); |
7ba29e2a NC |
2131 | if (sreloc == NULL) |
2132 | { | |
2133 | flagword flags; | |
2134 | ||
7ba29e2a NC |
2135 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
2136 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
2137 | if ((sec->flags & SEC_ALLOC) != 0) | |
2138 | flags |= SEC_ALLOC | SEC_LOAD; | |
3d4d4302 AM |
2139 | sreloc = bfd_make_section_anyway_with_flags (dynobj, |
2140 | name, | |
2141 | flags); | |
7ba29e2a | 2142 | if (sreloc == NULL |
7ba29e2a NC |
2143 | || ! bfd_set_section_alignment (dynobj, sreloc, 2)) |
2144 | return FALSE; | |
2145 | } | |
2146 | elf_section_data (sec)->sreloc = sreloc; | |
2147 | } | |
2148 | ||
2149 | /* If this is a global symbol, we count the number of | |
2150 | relocations we need for this symbol. */ | |
2151 | if (h != NULL) | |
2152 | head = &((struct elf32_mb_link_hash_entry *) h)->dyn_relocs; | |
2153 | else | |
2154 | { | |
2155 | /* Track dynamic relocs needed for local syms too. | |
2156 | We really need local syms available to do this | |
2157 | easily. Oh well. */ | |
2158 | ||
2159 | asection *s; | |
2160 | Elf_Internal_Sym *isym; | |
918d9742 | 2161 | void *vpp; |
7ba29e2a NC |
2162 | |
2163 | isym = bfd_sym_from_r_symndx (&htab->sym_sec, | |
2164 | abfd, r_symndx); | |
2165 | if (isym == NULL) | |
2166 | return FALSE; | |
2167 | ||
2168 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
2169 | if (s == NULL) | |
2170 | return FALSE; | |
2171 | ||
918d9742 TT |
2172 | vpp = &elf_section_data (s)->local_dynrel; |
2173 | head = (struct elf32_mb_dyn_relocs **) vpp; | |
7ba29e2a NC |
2174 | } |
2175 | ||
2176 | p = *head; | |
2177 | if (p == NULL || p->sec != sec) | |
2178 | { | |
2179 | bfd_size_type amt = sizeof *p; | |
2180 | p = ((struct elf32_mb_dyn_relocs *) | |
2181 | bfd_alloc (htab->elf.dynobj, amt)); | |
2182 | if (p == NULL) | |
2183 | return FALSE; | |
2184 | p->next = *head; | |
2185 | *head = p; | |
2186 | p->sec = sec; | |
2187 | p->count = 0; | |
2188 | p->pc_count = 0; | |
2189 | } | |
2190 | ||
2191 | p->count += 1; | |
2192 | if (r_type == R_MICROBLAZE_64_PCREL) | |
2193 | p->pc_count += 1; | |
2194 | } | |
2195 | } | |
2196 | break; | |
2197 | } | |
2198 | } | |
2199 | ||
2200 | return TRUE; | |
2201 | } | |
2202 | ||
2203 | static bfd_boolean | |
2204 | microblaze_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) | |
2205 | { | |
2206 | struct elf32_mb_link_hash_table *htab; | |
2207 | ||
2208 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2209 | if (htab == NULL) |
2210 | return FALSE; | |
2211 | ||
7ba29e2a NC |
2212 | if (!htab->sgot && !create_got_section (dynobj, info)) |
2213 | return FALSE; | |
2214 | ||
2215 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) | |
2216 | return FALSE; | |
2217 | ||
3d4d4302 AM |
2218 | htab->splt = bfd_get_linker_section (dynobj, ".plt"); |
2219 | htab->srelplt = bfd_get_linker_section (dynobj, ".rela.plt"); | |
2220 | htab->sdynbss = bfd_get_linker_section (dynobj, ".dynbss"); | |
7ba29e2a | 2221 | if (!info->shared) |
3d4d4302 | 2222 | htab->srelbss = bfd_get_linker_section (dynobj, ".rela.bss"); |
7ba29e2a NC |
2223 | |
2224 | if (!htab->splt || !htab->srelplt || !htab->sdynbss | |
2225 | || (!info->shared && !htab->srelbss)) | |
2226 | abort (); | |
2227 | ||
2228 | return TRUE; | |
2229 | } | |
2230 | ||
2231 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
2232 | ||
2233 | static void | |
2234 | microblaze_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
2235 | struct elf_link_hash_entry *dir, | |
2236 | struct elf_link_hash_entry *ind) | |
2237 | { | |
2238 | struct elf32_mb_link_hash_entry *edir, *eind; | |
2239 | ||
2240 | edir = (struct elf32_mb_link_hash_entry *) dir; | |
2241 | eind = (struct elf32_mb_link_hash_entry *) ind; | |
2242 | ||
2243 | if (eind->dyn_relocs != NULL) | |
2244 | { | |
2245 | if (edir->dyn_relocs != NULL) | |
2246 | { | |
2247 | struct elf32_mb_dyn_relocs **pp; | |
2248 | struct elf32_mb_dyn_relocs *p; | |
2249 | ||
2250 | if (ind->root.type == bfd_link_hash_indirect) | |
2251 | abort (); | |
2252 | ||
2253 | /* Add reloc counts against the weak sym to the strong sym | |
2254 | list. Merge any entries against the same section. */ | |
2255 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
2256 | { | |
2257 | struct elf32_mb_dyn_relocs *q; | |
2258 | ||
2259 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
2260 | if (q->sec == p->sec) | |
2261 | { | |
2262 | q->pc_count += p->pc_count; | |
2263 | q->count += p->count; | |
2264 | *pp = p->next; | |
2265 | break; | |
2266 | } | |
2267 | if (q == NULL) | |
2268 | pp = &p->next; | |
2269 | } | |
2270 | *pp = edir->dyn_relocs; | |
2271 | } | |
2272 | ||
2273 | edir->dyn_relocs = eind->dyn_relocs; | |
2274 | eind->dyn_relocs = NULL; | |
2275 | } | |
2276 | ||
2277 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
2278 | } | |
2279 | ||
2280 | static bfd_boolean | |
2281 | microblaze_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
2282 | struct elf_link_hash_entry *h) | |
2283 | { | |
2284 | struct elf32_mb_link_hash_table *htab; | |
2285 | struct elf32_mb_link_hash_entry * eh; | |
2286 | struct elf32_mb_dyn_relocs *p; | |
2287 | asection *sdynbss, *s; | |
2288 | unsigned int power_of_two; | |
2289 | bfd *dynobj; | |
2290 | ||
2291 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2292 | if (htab == NULL) |
2293 | return FALSE; | |
7ba29e2a NC |
2294 | |
2295 | /* If this is a function, put it in the procedure linkage table. We | |
2296 | will fill in the contents of the procedure linkage table later, | |
2297 | when we know the address of the .got section. */ | |
2298 | if (h->type == STT_FUNC | |
2299 | || h->needs_plt) | |
2300 | { | |
2301 | if (h->plt.refcount <= 0 | |
2302 | || SYMBOL_CALLS_LOCAL (info, h) | |
2303 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
2304 | && h->root.type == bfd_link_hash_undefweak)) | |
2305 | { | |
2306 | /* This case can occur if we saw a PLT reloc in an input | |
2307 | file, but the symbol was never referred to by a dynamic | |
2308 | object, or if all references were garbage collected. In | |
2309 | such a case, we don't actually need to build a procedure | |
2310 | linkage table, and we can just do a PC32 reloc instead. */ | |
2311 | h->plt.offset = (bfd_vma) -1; | |
2312 | h->needs_plt = 0; | |
2313 | } | |
2314 | ||
2315 | return TRUE; | |
2316 | } | |
2317 | else | |
2318 | /* It's possible that we incorrectly decided a .plt reloc was | |
2319 | needed for an R_MICROBLAZE_64_PCREL reloc to a non-function sym in | |
2320 | check_relocs. We can't decide accurately between function and | |
2321 | non-function syms in check-relocs; Objects loaded later in | |
2322 | the link may change h->type. So fix it now. */ | |
2323 | h->plt.offset = (bfd_vma) -1; | |
2324 | ||
2325 | /* If this is a weak symbol, and there is a real definition, the | |
2326 | processor independent code will have arranged for us to see the | |
2327 | real definition first, and we can just use the same value. */ | |
2328 | if (h->u.weakdef != NULL) | |
2329 | { | |
2330 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined | |
2331 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
2332 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
2333 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
2334 | return TRUE; | |
2335 | } | |
2336 | ||
2337 | /* This is a reference to a symbol defined by a dynamic object which | |
2338 | is not a function. */ | |
2339 | ||
2340 | /* If we are creating a shared library, we must presume that the | |
2341 | only references to the symbol are via the global offset table. | |
2342 | For such cases we need not do anything here; the relocations will | |
2343 | be handled correctly by relocate_section. */ | |
2344 | if (info->shared) | |
2345 | return TRUE; | |
2346 | ||
2347 | /* If there are no references to this symbol that do not use the | |
2348 | GOT, we don't need to generate a copy reloc. */ | |
2349 | if (!h->non_got_ref) | |
2350 | return TRUE; | |
2351 | ||
2352 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
2353 | if (info->nocopyreloc) | |
2354 | { | |
2355 | h->non_got_ref = 0; | |
2356 | return TRUE; | |
2357 | } | |
2358 | ||
2359 | eh = (struct elf32_mb_link_hash_entry *) h; | |
2360 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2361 | { | |
2362 | s = p->sec->output_section; | |
2363 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2364 | break; | |
2365 | } | |
2366 | ||
2367 | /* If we didn't find any dynamic relocs in read-only sections, then | |
2368 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
2369 | if (p == NULL) | |
2370 | { | |
2371 | h->non_got_ref = 0; | |
2372 | return TRUE; | |
2373 | } | |
2374 | ||
2375 | /* We must allocate the symbol in our .dynbss section, which will | |
2376 | become part of the .bss section of the executable. There will be | |
2377 | an entry for this symbol in the .dynsym section. The dynamic | |
2378 | object will contain position independent code, so all references | |
2379 | from the dynamic object to this symbol will go through the global | |
2380 | offset table. The dynamic linker will use the .dynsym entry to | |
2381 | determine the address it must put in the global offset table, so | |
2382 | both the dynamic object and the regular object will refer to the | |
2383 | same memory location for the variable. */ | |
2384 | ||
2385 | /* We must generate a R_MICROBLAZE_COPY reloc to tell the dynamic linker | |
2386 | to copy the initial value out of the dynamic object and into the | |
2387 | runtime process image. */ | |
2388 | dynobj = elf_hash_table (info)->dynobj; | |
2389 | BFD_ASSERT (dynobj != NULL); | |
2390 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
2391 | { | |
2392 | htab->srelbss->size += sizeof (Elf32_External_Rela); | |
2393 | h->needs_copy = 1; | |
2394 | } | |
2395 | ||
2396 | /* We need to figure out the alignment required for this symbol. I | |
2397 | have no idea how ELF linkers handle this. */ | |
2398 | power_of_two = bfd_log2 (h->size); | |
2399 | if (power_of_two > 3) | |
2400 | power_of_two = 3; | |
2401 | ||
2402 | sdynbss = htab->sdynbss; | |
2403 | /* Apply the required alignment. */ | |
2404 | sdynbss->size = BFD_ALIGN (sdynbss->size, (bfd_size_type) (1 << power_of_two)); | |
2405 | if (power_of_two > bfd_get_section_alignment (dynobj, sdynbss)) | |
2406 | { | |
2407 | if (! bfd_set_section_alignment (dynobj, sdynbss, power_of_two)) | |
2408 | return FALSE; | |
2409 | } | |
2410 | ||
2411 | /* Define the symbol as being at this point in the section. */ | |
2412 | h->root.u.def.section = sdynbss; | |
2413 | h->root.u.def.value = sdynbss->size; | |
2414 | ||
2415 | /* Increment the section size to make room for the symbol. */ | |
2416 | sdynbss->size += h->size; | |
2417 | return TRUE; | |
2418 | } | |
2419 | ||
2420 | /* Allocate space in .plt, .got and associated reloc sections for | |
2421 | dynamic relocs. */ | |
2422 | ||
2423 | static bfd_boolean | |
2424 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * dat) | |
2425 | { | |
2426 | struct bfd_link_info *info; | |
2427 | struct elf32_mb_link_hash_table *htab; | |
2428 | struct elf32_mb_link_hash_entry *eh; | |
2429 | struct elf32_mb_dyn_relocs *p; | |
2430 | ||
2431 | if (h->root.type == bfd_link_hash_indirect) | |
2432 | return TRUE; | |
2433 | ||
7ba29e2a NC |
2434 | info = (struct bfd_link_info *) dat; |
2435 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2436 | if (htab == NULL) |
2437 | return FALSE; | |
7ba29e2a NC |
2438 | |
2439 | if (htab->elf.dynamic_sections_created | |
2440 | && h->plt.refcount > 0) | |
2441 | { | |
2442 | /* Make sure this symbol is output as a dynamic symbol. | |
2443 | Undefined weak syms won't yet be marked as dynamic. */ | |
2444 | if (h->dynindx == -1 | |
2445 | && !h->forced_local) | |
2446 | { | |
2447 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2448 | return FALSE; | |
2449 | } | |
2450 | ||
2451 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h)) | |
2452 | { | |
2453 | asection *s = htab->splt; | |
2454 | ||
2455 | /* The first entry in .plt is reserved. */ | |
2456 | if (s->size == 0) | |
2457 | s->size = PLT_ENTRY_SIZE; | |
2458 | ||
2459 | h->plt.offset = s->size; | |
2460 | ||
2461 | /* If this symbol is not defined in a regular file, and we are | |
2462 | not generating a shared library, then set the symbol to this | |
2463 | location in the .plt. This is required to make function | |
2464 | pointers compare as equal between the normal executable and | |
2465 | the shared library. */ | |
2466 | if (! info->shared | |
2467 | && !h->def_regular) | |
2468 | { | |
2469 | h->root.u.def.section = s; | |
2470 | h->root.u.def.value = h->plt.offset; | |
2471 | } | |
2472 | ||
2473 | /* Make room for this entry. */ | |
2474 | s->size += PLT_ENTRY_SIZE; | |
2475 | ||
2476 | /* We also need to make an entry in the .got.plt section, which | |
2477 | will be placed in the .got section by the linker script. */ | |
2478 | htab->sgotplt->size += 4; | |
2479 | ||
2480 | /* We also need to make an entry in the .rel.plt section. */ | |
2481 | htab->srelplt->size += sizeof (Elf32_External_Rela); | |
2482 | } | |
2483 | else | |
2484 | { | |
2485 | h->plt.offset = (bfd_vma) -1; | |
2486 | h->needs_plt = 0; | |
2487 | } | |
2488 | } | |
2489 | else | |
2490 | { | |
2491 | h->plt.offset = (bfd_vma) -1; | |
2492 | h->needs_plt = 0; | |
2493 | } | |
2494 | ||
2495 | if (h->got.refcount > 0) | |
2496 | { | |
2497 | asection *s; | |
2498 | ||
2499 | /* Make sure this symbol is output as a dynamic symbol. | |
2500 | Undefined weak syms won't yet be marked as dynamic. */ | |
2501 | if (h->dynindx == -1 | |
2502 | && !h->forced_local) | |
2503 | { | |
2504 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2505 | return FALSE; | |
2506 | } | |
2507 | ||
2508 | s = htab->sgot; | |
2509 | h->got.offset = s->size; | |
2510 | s->size += 4; | |
2511 | htab->srelgot->size += sizeof (Elf32_External_Rela); | |
2512 | } | |
2513 | else | |
2514 | h->got.offset = (bfd_vma) -1; | |
2515 | ||
2516 | eh = (struct elf32_mb_link_hash_entry *) h; | |
2517 | if (eh->dyn_relocs == NULL) | |
2518 | return TRUE; | |
2519 | ||
2520 | /* In the shared -Bsymbolic case, discard space allocated for | |
2521 | dynamic pc-relative relocs against symbols which turn out to be | |
2522 | defined in regular objects. For the normal shared case, discard | |
2523 | space for pc-relative relocs that have become local due to symbol | |
2524 | visibility changes. */ | |
2525 | ||
2526 | if (info->shared) | |
2527 | { | |
2528 | if (h->def_regular | |
2529 | && (h->forced_local | |
2530 | || info->symbolic)) | |
2531 | { | |
2532 | struct elf32_mb_dyn_relocs **pp; | |
2533 | ||
2534 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
2535 | { | |
2536 | p->count -= p->pc_count; | |
2537 | p->pc_count = 0; | |
2538 | if (p->count == 0) | |
2539 | *pp = p->next; | |
2540 | else | |
2541 | pp = &p->next; | |
2542 | } | |
2543 | } | |
2544 | } | |
2545 | else | |
2546 | { | |
2547 | /* For the non-shared case, discard space for relocs against | |
2548 | symbols which turn out to need copy relocs or are not | |
2549 | dynamic. */ | |
2550 | ||
2551 | if (!h->non_got_ref | |
2552 | && ((h->def_dynamic | |
2553 | && !h->def_regular) | |
2554 | || (htab->elf.dynamic_sections_created | |
2555 | && (h->root.type == bfd_link_hash_undefweak | |
2556 | || h->root.type == bfd_link_hash_undefined)))) | |
2557 | { | |
2558 | /* Make sure this symbol is output as a dynamic symbol. | |
2559 | Undefined weak syms won't yet be marked as dynamic. */ | |
2560 | if (h->dynindx == -1 | |
2561 | && !h->forced_local) | |
2562 | { | |
2563 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2564 | return FALSE; | |
2565 | } | |
2566 | ||
2567 | /* If that succeeded, we know we'll be keeping all the | |
2568 | relocs. */ | |
2569 | if (h->dynindx != -1) | |
2570 | goto keep; | |
2571 | } | |
2572 | ||
2573 | eh->dyn_relocs = NULL; | |
2574 | ||
2575 | keep: ; | |
2576 | } | |
2577 | ||
2578 | /* Finally, allocate space. */ | |
2579 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2580 | { | |
2581 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
2582 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
2583 | } | |
2584 | ||
2585 | return TRUE; | |
2586 | } | |
2587 | ||
2588 | /* Set the sizes of the dynamic sections. */ | |
2589 | ||
2590 | static bfd_boolean | |
2591 | microblaze_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
2592 | struct bfd_link_info *info) | |
2593 | { | |
2594 | struct elf32_mb_link_hash_table *htab; | |
2595 | bfd *dynobj; | |
2596 | asection *s; | |
2597 | bfd *ibfd; | |
2598 | ||
2599 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2600 | if (htab == NULL) |
2601 | return FALSE; | |
2602 | ||
7ba29e2a NC |
2603 | dynobj = htab->elf.dynobj; |
2604 | BFD_ASSERT (dynobj != NULL); | |
2605 | ||
2606 | /* Set up .got offsets for local syms, and space for local dynamic | |
2607 | relocs. */ | |
2608 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
2609 | { | |
2610 | bfd_signed_vma *local_got; | |
2611 | bfd_signed_vma *end_local_got; | |
2612 | bfd_size_type locsymcount; | |
2613 | Elf_Internal_Shdr *symtab_hdr; | |
2614 | asection *srel; | |
2615 | ||
2616 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
2617 | continue; | |
2618 | ||
2619 | for (s = ibfd->sections; s != NULL; s = s->next) | |
2620 | { | |
2621 | struct elf32_mb_dyn_relocs *p; | |
2622 | ||
2623 | for (p = ((struct elf32_mb_dyn_relocs *) | |
2624 | elf_section_data (s)->local_dynrel); | |
2625 | p != NULL; | |
2626 | p = p->next) | |
2627 | { | |
2628 | if (!bfd_is_abs_section (p->sec) | |
2629 | && bfd_is_abs_section (p->sec->output_section)) | |
2630 | { | |
2631 | /* Input section has been discarded, either because | |
2632 | it is a copy of a linkonce section or due to | |
2633 | linker script /DISCARD/, so we'll be discarding | |
2634 | the relocs too. */ | |
2635 | } | |
2636 | else if (p->count != 0) | |
2637 | { | |
2638 | srel = elf_section_data (p->sec)->sreloc; | |
2639 | srel->size += p->count * sizeof (Elf32_External_Rela); | |
2640 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
2641 | info->flags |= DF_TEXTREL; | |
2642 | } | |
2643 | } | |
2644 | } | |
2645 | ||
2646 | local_got = elf_local_got_refcounts (ibfd); | |
2647 | if (!local_got) | |
2648 | continue; | |
2649 | ||
2650 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2651 | locsymcount = symtab_hdr->sh_info; | |
2652 | end_local_got = local_got + locsymcount; | |
2653 | s = htab->sgot; | |
2654 | srel = htab->srelgot; | |
2655 | ||
2656 | for (; local_got < end_local_got; ++local_got) | |
2657 | { | |
2658 | if (*local_got > 0) | |
2659 | { | |
2660 | *local_got = s->size; | |
2661 | s->size += 4; | |
2662 | if (info->shared) | |
2663 | srel->size += sizeof (Elf32_External_Rela); | |
2664 | } | |
2665 | else | |
2666 | *local_got = (bfd_vma) -1; | |
2667 | } | |
2668 | } | |
2669 | ||
2670 | /* Allocate global sym .plt and .got entries, and space for global | |
2671 | sym dynamic relocs. */ | |
2672 | elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info); | |
2673 | ||
2674 | if (elf_hash_table (info)->dynamic_sections_created) | |
2675 | { | |
2676 | /* Make space for the trailing nop in .plt. */ | |
2677 | if (htab->splt->size > 0) | |
2678 | htab->splt->size += 4; | |
2679 | } | |
2680 | ||
2681 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2682 | determined the sizes of the various dynamic sections. Allocate | |
2683 | memory for them. */ | |
2684 | for (s = dynobj->sections; s != NULL; s = s->next) | |
2685 | { | |
2686 | const char *name; | |
2687 | bfd_boolean strip = FALSE; | |
2688 | ||
2689 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
2690 | continue; | |
2691 | ||
2692 | /* It's OK to base decisions on the section name, because none | |
2693 | of the dynobj section names depend upon the input files. */ | |
2694 | name = bfd_get_section_name (dynobj, s); | |
2695 | ||
2696 | if (strncmp (name, ".rela", 5) == 0) | |
2697 | { | |
2698 | if (s->size == 0) | |
2699 | { | |
2700 | /* If we don't need this section, strip it from the | |
2701 | output file. This is to handle .rela.bss and | |
2702 | .rela.plt. We must create it in | |
2703 | create_dynamic_sections, because it must be created | |
2704 | before the linker maps input sections to output | |
2705 | sections. The linker does that before | |
2706 | adjust_dynamic_symbol is called, and it is that | |
2707 | function which decides whether anything needs to go | |
2708 | into these sections. */ | |
2709 | strip = TRUE; | |
2710 | } | |
2711 | else | |
2712 | { | |
2713 | /* We use the reloc_count field as a counter if we need | |
2714 | to copy relocs into the output file. */ | |
2715 | s->reloc_count = 0; | |
2716 | } | |
2717 | } | |
2718 | else if (s != htab->splt && s != htab->sgot && s != htab->sgotplt) | |
2719 | { | |
2720 | /* It's not one of our sections, so don't allocate space. */ | |
2721 | continue; | |
2722 | } | |
2723 | ||
2724 | if (strip) | |
2725 | { | |
2726 | s->flags |= SEC_EXCLUDE; | |
2727 | continue; | |
2728 | } | |
2729 | ||
2730 | /* Allocate memory for the section contents. */ | |
2731 | /* FIXME: This should be a call to bfd_alloc not bfd_zalloc. | |
2732 | Unused entries should be reclaimed before the section's contents | |
2733 | are written out, but at the moment this does not happen. Thus in | |
2734 | order to prevent writing out garbage, we initialise the section's | |
2735 | contents to zero. */ | |
2736 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); | |
2737 | if (s->contents == NULL && s->size != 0) | |
2738 | return FALSE; | |
2739 | } | |
2740 | ||
2741 | if (elf_hash_table (info)->dynamic_sections_created) | |
2742 | { | |
2743 | /* Add some entries to the .dynamic section. We fill in the | |
2744 | values later, in microblaze_elf_finish_dynamic_sections, but we | |
2745 | must add the entries now so that we get the correct size for | |
2746 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2747 | dynamic linker and used by the debugger. */ | |
2748 | #define add_dynamic_entry(TAG, VAL) \ | |
2749 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
2750 | ||
2751 | if (info->executable) | |
2752 | { | |
2753 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
2754 | return FALSE; | |
2755 | } | |
2756 | ||
2757 | if (!add_dynamic_entry (DT_RELA, 0) | |
2758 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2759 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
2760 | return FALSE; | |
2761 | ||
2762 | if (htab->splt->size != 0) | |
2763 | { | |
2764 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
2765 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
2766 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2767 | || !add_dynamic_entry (DT_JMPREL, 0) | |
2768 | || !add_dynamic_entry (DT_BIND_NOW, 1)) | |
2769 | return FALSE; | |
2770 | } | |
2771 | ||
2772 | if (info->flags & DF_TEXTREL) | |
2773 | { | |
2774 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
2775 | return FALSE; | |
2776 | } | |
2777 | } | |
2778 | #undef add_dynamic_entry | |
2779 | return TRUE; | |
2780 | } | |
2781 | ||
2782 | /* Finish up dynamic symbol handling. We set the contents of various | |
2783 | dynamic sections here. */ | |
2784 | ||
2785 | static bfd_boolean | |
2786 | microblaze_elf_finish_dynamic_symbol (bfd *output_bfd, | |
2787 | struct bfd_link_info *info, | |
2788 | struct elf_link_hash_entry *h, | |
2789 | Elf_Internal_Sym *sym) | |
2790 | { | |
7ba29e2a NC |
2791 | struct elf32_mb_link_hash_table *htab; |
2792 | ||
2793 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2794 | if (htab == NULL) |
2795 | return FALSE; | |
2796 | ||
7ba29e2a NC |
2797 | if (h->plt.offset != (bfd_vma) -1) |
2798 | { | |
2799 | asection *splt; | |
2800 | asection *srela; | |
2801 | asection *sgotplt; | |
2802 | Elf_Internal_Rela rela; | |
2803 | bfd_byte *loc; | |
2804 | bfd_vma plt_index; | |
2805 | bfd_vma got_offset; | |
2806 | bfd_vma got_addr; | |
2807 | ||
2808 | /* This symbol has an entry in the procedure linkage table. Set | |
2809 | it up. */ | |
2810 | BFD_ASSERT (h->dynindx != -1); | |
2811 | ||
2812 | splt = htab->splt; | |
2813 | srela = htab->srelplt; | |
2814 | sgotplt = htab->sgotplt; | |
2815 | BFD_ASSERT (splt != NULL && srela != NULL && sgotplt != NULL); | |
2816 | ||
2817 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; /* first entry reserved. */ | |
2818 | got_offset = (plt_index + 3) * 4; /* 3 reserved ??? */ | |
2819 | got_addr = got_offset; | |
2820 | ||
2821 | /* For non-PIC objects we need absolute address of the GOT entry. */ | |
2822 | if (!info->shared) | |
2823 | got_addr += htab->sgotplt->output_section->vma + sgotplt->output_offset; | |
2824 | ||
2825 | /* Fill in the entry in the procedure linkage table. */ | |
2826 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD_0 + ((got_addr >> 16) & 0xffff), | |
2827 | splt->contents + h->plt.offset); | |
2828 | if (info->shared) | |
2829 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD_1 + (got_addr & 0xffff), | |
2830 | splt->contents + h->plt.offset + 4); | |
2831 | else | |
2832 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD_1_NOPIC + (got_addr & 0xffff), | |
2833 | splt->contents + h->plt.offset + 4); | |
2834 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD_2, | |
2835 | splt->contents + h->plt.offset + 8); | |
2836 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD_3, | |
2837 | splt->contents + h->plt.offset + 12); | |
2838 | ||
2839 | /* Any additions to the .got section??? */ | |
2840 | /* bfd_put_32 (output_bfd, | |
2841 | splt->output_section->vma + splt->output_offset + h->plt.offset + 4, | |
2842 | sgotplt->contents + got_offset); */ | |
2843 | ||
2844 | /* Fill in the entry in the .rela.plt section. */ | |
2845 | rela.r_offset = (sgotplt->output_section->vma | |
2846 | + sgotplt->output_offset | |
2847 | + got_offset); | |
2848 | rela.r_info = ELF32_R_INFO (h->dynindx, R_MICROBLAZE_JUMP_SLOT); | |
2849 | rela.r_addend = 0; | |
2850 | loc = srela->contents; | |
2851 | loc += plt_index * sizeof (Elf32_External_Rela); | |
2852 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
2853 | ||
2854 | if (!h->def_regular) | |
2855 | { | |
2856 | /* Mark the symbol as undefined, rather than as defined in | |
2857 | the .plt section. Zero the value. */ | |
2858 | sym->st_shndx = SHN_UNDEF; | |
2859 | sym->st_value = 0; | |
2860 | } | |
2861 | } | |
2862 | ||
2863 | if (h->got.offset != (bfd_vma) -1) | |
2864 | { | |
2865 | asection *sgot; | |
2866 | asection *srela; | |
2867 | Elf_Internal_Rela rela; | |
2868 | bfd_byte *loc; | |
2869 | ||
2870 | /* This symbol has an entry in the global offset table. Set it | |
2871 | up. */ | |
2872 | ||
2873 | sgot = htab->sgot; | |
2874 | srela = htab->srelgot; | |
2875 | BFD_ASSERT (sgot != NULL && srela != NULL); | |
2876 | ||
2877 | rela.r_offset = (sgot->output_section->vma | |
2878 | + sgot->output_offset | |
2879 | + (h->got.offset &~ (bfd_vma) 1)); | |
2880 | ||
2881 | /* If this is a -Bsymbolic link, and the symbol is defined | |
2882 | locally, we just want to emit a RELATIVE reloc. Likewise if | |
2883 | the symbol was forced to be local because of a version file. | |
2884 | The entry in the global offset table will already have been | |
2885 | initialized in the relocate_section function. */ | |
2886 | if (info->shared | |
2887 | && (info->symbolic || h->dynindx == -1) | |
2888 | && h->def_regular) | |
2889 | { | |
2890 | asection *sec = h->root.u.def.section; | |
2891 | rela.r_info = ELF32_R_INFO (0, R_MICROBLAZE_REL); | |
2892 | rela.r_addend = (h->root.u.def.value | |
2893 | + sec->output_section->vma | |
2894 | + sec->output_offset); | |
2895 | } | |
2896 | else | |
2897 | { | |
2898 | rela.r_info = ELF32_R_INFO (h->dynindx, R_MICROBLAZE_GLOB_DAT); | |
2899 | rela.r_addend = 0; | |
2900 | } | |
2901 | ||
2902 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
2903 | sgot->contents + (h->got.offset &~ (bfd_vma) 1)); | |
2904 | loc = srela->contents; | |
2905 | loc += srela->reloc_count++ * sizeof (Elf32_External_Rela); | |
2906 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
2907 | } | |
2908 | ||
2909 | if (h->needs_copy) | |
2910 | { | |
2911 | asection *s; | |
2912 | Elf_Internal_Rela rela; | |
2913 | bfd_byte *loc; | |
2914 | ||
2915 | /* This symbols needs a copy reloc. Set it up. */ | |
2916 | ||
2917 | BFD_ASSERT (h->dynindx != -1); | |
2918 | ||
3d4d4302 | 2919 | s = bfd_get_linker_section (htab->elf.dynobj, ".rela.bss"); |
7ba29e2a NC |
2920 | BFD_ASSERT (s != NULL); |
2921 | ||
2922 | rela.r_offset = (h->root.u.def.value | |
2923 | + h->root.u.def.section->output_section->vma | |
2924 | + h->root.u.def.section->output_offset); | |
2925 | rela.r_info = ELF32_R_INFO (h->dynindx, R_MICROBLAZE_COPY); | |
2926 | rela.r_addend = 0; | |
2927 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); | |
2928 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
2929 | } | |
2930 | ||
2931 | /* Mark some specially defined symbols as absolute. */ | |
9637f6ef L |
2932 | if (h == htab->elf.hdynamic |
2933 | || h == htab->elf.hgot | |
2934 | || h == htab->elf.hplt) | |
7ba29e2a NC |
2935 | sym->st_shndx = SHN_ABS; |
2936 | ||
2937 | return TRUE; | |
2938 | } | |
2939 | ||
2940 | ||
2941 | /* Finish up the dynamic sections. */ | |
2942 | ||
2943 | static bfd_boolean | |
2944 | microblaze_elf_finish_dynamic_sections (bfd *output_bfd, | |
2945 | struct bfd_link_info *info) | |
2946 | { | |
2947 | bfd *dynobj; | |
2948 | asection *sdyn, *sgot; | |
2949 | struct elf32_mb_link_hash_table *htab; | |
2950 | ||
2951 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2952 | if (htab == NULL) |
2953 | return FALSE; | |
2954 | ||
7ba29e2a NC |
2955 | dynobj = htab->elf.dynobj; |
2956 | ||
3d4d4302 | 2957 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
7ba29e2a NC |
2958 | |
2959 | if (htab->elf.dynamic_sections_created) | |
2960 | { | |
2961 | asection *splt; | |
2962 | Elf32_External_Dyn *dyncon, *dynconend; | |
2963 | ||
3d4d4302 | 2964 | splt = bfd_get_linker_section (dynobj, ".plt"); |
7ba29e2a NC |
2965 | BFD_ASSERT (splt != NULL && sdyn != NULL); |
2966 | ||
2967 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
2968 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
2969 | for (; dyncon < dynconend; dyncon++) | |
2970 | { | |
2971 | Elf_Internal_Dyn dyn; | |
2972 | const char *name; | |
2973 | bfd_boolean size; | |
2974 | ||
2975 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
2976 | ||
2977 | switch (dyn.d_tag) | |
2978 | { | |
2979 | case DT_PLTGOT: name = ".got.plt"; size = FALSE; break; | |
2980 | case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break; | |
2981 | case DT_JMPREL: name = ".rela.plt"; size = FALSE; break; | |
2982 | case DT_RELA: name = ".rela.dyn"; size = FALSE; break; | |
2983 | case DT_RELASZ: name = ".rela.dyn"; size = TRUE; break; | |
2984 | default: name = NULL; size = FALSE; break; | |
2985 | } | |
2986 | ||
2987 | if (name != NULL) | |
2988 | { | |
2989 | asection *s; | |
2990 | ||
2991 | s = bfd_get_section_by_name (output_bfd, name); | |
2992 | if (s == NULL) | |
2993 | dyn.d_un.d_val = 0; | |
2994 | else | |
2995 | { | |
2996 | if (! size) | |
2997 | dyn.d_un.d_ptr = s->vma; | |
2998 | else | |
2999 | dyn.d_un.d_val = s->size; | |
3000 | } | |
3001 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3002 | } | |
3003 | } | |
3004 | ||
3005 | /* Clear the first entry in the procedure linkage table, | |
3006 | and put a nop in the last four bytes. */ | |
3007 | if (splt->size > 0) | |
3008 | { | |
3009 | memset (splt->contents, 0, PLT_ENTRY_SIZE); | |
3010 | bfd_put_32 (output_bfd, (bfd_vma) 0x80000000 /* nop. */, | |
3011 | splt->contents + splt->size - 4); | |
3012 | } | |
3013 | ||
3014 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
3015 | } | |
3016 | ||
3017 | /* Set the first entry in the global offset table to the address of | |
3018 | the dynamic section. */ | |
3d4d4302 | 3019 | sgot = bfd_get_linker_section (dynobj, ".got.plt"); |
7ba29e2a NC |
3020 | if (sgot && sgot->size > 0) |
3021 | { | |
3022 | if (sdyn == NULL) | |
3023 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
3024 | else | |
3025 | bfd_put_32 (output_bfd, | |
3026 | sdyn->output_section->vma + sdyn->output_offset, | |
3027 | sgot->contents); | |
3028 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
3029 | } | |
3030 | ||
3031 | if (htab->sgot && htab->sgot->size > 0) | |
3032 | elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize = 4; | |
3033 | ||
3034 | return TRUE; | |
3035 | } | |
3036 | ||
3037 | /* Hook called by the linker routine which adds symbols from an object | |
3038 | file. We use it to put .comm items in .sbss, and not .bss. */ | |
3039 | ||
3040 | static bfd_boolean | |
3041 | microblaze_elf_add_symbol_hook (bfd *abfd, | |
3042 | struct bfd_link_info *info, | |
3043 | Elf_Internal_Sym *sym, | |
3044 | const char **namep ATTRIBUTE_UNUSED, | |
3045 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3046 | asection **secp, | |
3047 | bfd_vma *valp) | |
3048 | { | |
3049 | if (sym->st_shndx == SHN_COMMON | |
3050 | && !info->relocatable | |
3051 | && sym->st_size <= elf_gp_size (abfd)) | |
3052 | { | |
3053 | /* Common symbols less than or equal to -G nn bytes are automatically | |
3054 | put into .sbss. */ | |
3d4d4302 | 3055 | *secp = bfd_make_section_old_way (abfd, ".sbss"); |
7ba29e2a NC |
3056 | if (*secp == NULL |
3057 | || ! bfd_set_section_flags (abfd, *secp, SEC_IS_COMMON)) | |
3058 | return FALSE; | |
3059 | ||
3060 | *valp = sym->st_size; | |
3061 | } | |
3062 | ||
3063 | return TRUE; | |
3064 | } | |
3065 | ||
f23200ad ME |
3066 | #define TARGET_LITTLE_SYM bfd_elf32_microblazeel_vec |
3067 | #define TARGET_LITTLE_NAME "elf32-microblazeel" | |
7ba29e2a NC |
3068 | |
3069 | #define TARGET_BIG_SYM bfd_elf32_microblaze_vec | |
3070 | #define TARGET_BIG_NAME "elf32-microblaze" | |
3071 | ||
3072 | #define ELF_ARCH bfd_arch_microblaze | |
ae95ffa6 | 3073 | #define ELF_TARGET_ID MICROBLAZE_ELF_DATA |
7ba29e2a NC |
3074 | #define ELF_MACHINE_CODE EM_MICROBLAZE |
3075 | #define ELF_MACHINE_ALT1 EM_MICROBLAZE_OLD | |
3076 | #define ELF_MAXPAGESIZE 0x4 /* 4k, if we ever have 'em. */ | |
3077 | #define elf_info_to_howto microblaze_elf_info_to_howto | |
3078 | #define elf_info_to_howto_rel NULL | |
3079 | ||
3080 | #define bfd_elf32_bfd_reloc_type_lookup microblaze_elf_reloc_type_lookup | |
3081 | #define bfd_elf32_bfd_is_local_label_name microblaze_elf_is_local_label_name | |
3082 | #define elf_backend_relocate_section microblaze_elf_relocate_section | |
3083 | #define bfd_elf32_bfd_relax_section microblaze_elf_relax_section | |
f23200ad | 3084 | #define bfd_elf32_bfd_merge_private_bfd_data microblaze_elf_merge_private_bfd_data |
7ba29e2a NC |
3085 | #define bfd_elf32_bfd_reloc_name_lookup microblaze_elf_reloc_name_lookup |
3086 | ||
3087 | #define elf_backend_gc_mark_hook microblaze_elf_gc_mark_hook | |
3088 | #define elf_backend_gc_sweep_hook microblaze_elf_gc_sweep_hook | |
3089 | #define elf_backend_check_relocs microblaze_elf_check_relocs | |
3090 | #define elf_backend_copy_indirect_symbol microblaze_elf_copy_indirect_symbol | |
3091 | #define bfd_elf32_bfd_link_hash_table_create microblaze_elf_link_hash_table_create | |
3092 | #define elf_backend_can_gc_sections 1 | |
3093 | #define elf_backend_can_refcount 1 | |
3094 | #define elf_backend_want_got_plt 1 | |
3095 | #define elf_backend_plt_readonly 1 | |
3096 | #define elf_backend_got_header_size 12 | |
3097 | #define elf_backend_rela_normal 1 | |
3098 | ||
3099 | #define elf_backend_adjust_dynamic_symbol microblaze_elf_adjust_dynamic_symbol | |
3100 | #define elf_backend_create_dynamic_sections microblaze_elf_create_dynamic_sections | |
3101 | #define elf_backend_finish_dynamic_sections microblaze_elf_finish_dynamic_sections | |
3102 | #define elf_backend_finish_dynamic_symbol microblaze_elf_finish_dynamic_symbol | |
3103 | #define elf_backend_size_dynamic_sections microblaze_elf_size_dynamic_sections | |
3104 | #define elf_backend_add_symbol_hook microblaze_elf_add_symbol_hook | |
3105 | ||
3106 | #include "elf32-target.h" |