Commit | Line | Data |
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7ba29e2a NC |
1 | /* Xilinx MicroBlaze-specific support for 32-bit ELF |
2 | ||
250d07de | 3 | Copyright (C) 2009-2021 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 | ||
7ba29e2a | 23 | #include "sysdep.h" |
691bf19c | 24 | #include "bfd.h" |
7ba29e2a NC |
25 | #include "bfdlink.h" |
26 | #include "libbfd.h" | |
27 | #include "elf-bfd.h" | |
28 | #include "elf/microblaze.h" | |
29 | #include <assert.h> | |
30 | ||
31 | #define USE_RELA /* Only USE_REL is actually significant, but this is | |
32 | here are a reminder... */ | |
33 | #define INST_WORD_SIZE 4 | |
34 | ||
35 | static int ro_small_data_pointer = 0; | |
36 | static int rw_small_data_pointer = 0; | |
37 | ||
38 | static reloc_howto_type * microblaze_elf_howto_table [(int) R_MICROBLAZE_max]; | |
39 | ||
40 | static reloc_howto_type microblaze_elf_howto_raw[] = | |
41 | { | |
42 | /* This reloc does nothing. */ | |
43 | HOWTO (R_MICROBLAZE_NONE, /* Type. */ | |
07d6d2b8 AM |
44 | 0, /* Rightshift. */ |
45 | 3, /* Size (0 = byte, 1 = short, 2 = long). */ | |
46 | 0, /* Bitsize. */ | |
47 | FALSE, /* PC_relative. */ | |
48 | 0, /* Bitpos. */ | |
49 | complain_overflow_dont, /* Complain on overflow. */ | |
50 | NULL, /* Special Function. */ | |
51 | "R_MICROBLAZE_NONE", /* Name. */ | |
52 | FALSE, /* Partial Inplace. */ | |
53 | 0, /* Source Mask. */ | |
54 | 0, /* Dest Mask. */ | |
55 | FALSE), /* PC relative offset? */ | |
7ba29e2a NC |
56 | |
57 | /* A standard 32 bit relocation. */ | |
07d6d2b8 AM |
58 | HOWTO (R_MICROBLAZE_32, /* Type. */ |
59 | 0, /* Rightshift. */ | |
60 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
61 | 32, /* Bitsize. */ | |
62 | FALSE, /* PC_relative. */ | |
63 | 0, /* Bitpos. */ | |
64 | complain_overflow_bitfield, /* Complain on overflow. */ | |
65 | bfd_elf_generic_reloc,/* Special Function. */ | |
66 | "R_MICROBLAZE_32", /* Name. */ | |
67 | FALSE, /* Partial Inplace. */ | |
68 | 0, /* Source Mask. */ | |
69 | 0xffffffff, /* Dest Mask. */ | |
70 | FALSE), /* PC relative offset? */ | |
7ba29e2a NC |
71 | |
72 | /* A standard PCREL 32 bit relocation. */ | |
73 | HOWTO (R_MICROBLAZE_32_PCREL,/* Type. */ | |
07d6d2b8 AM |
74 | 0, /* Rightshift. */ |
75 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
76 | 32, /* Bitsize. */ | |
77 | TRUE, /* PC_relative. */ | |
78 | 0, /* Bitpos. */ | |
79 | complain_overflow_bitfield, /* Complain on overflow. */ | |
80 | bfd_elf_generic_reloc,/* Special Function. */ | |
81 | "R_MICROBLAZE_32_PCREL", /* Name. */ | |
82 | TRUE, /* Partial Inplace. */ | |
83 | 0, /* Source Mask. */ | |
84 | 0xffffffff, /* Dest Mask. */ | |
85 | TRUE), /* PC relative offset? */ | |
7ba29e2a NC |
86 | |
87 | /* A 64 bit PCREL relocation. Table-entry not really used. */ | |
88 | HOWTO (R_MICROBLAZE_64_PCREL,/* Type. */ | |
07d6d2b8 AM |
89 | 0, /* Rightshift. */ |
90 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
91 | 16, /* Bitsize. */ | |
92 | TRUE, /* PC_relative. */ | |
93 | 0, /* Bitpos. */ | |
94 | complain_overflow_dont, /* Complain on overflow. */ | |
95 | bfd_elf_generic_reloc,/* Special Function. */ | |
96 | "R_MICROBLAZE_64_PCREL", /* Name. */ | |
97 | FALSE, /* Partial Inplace. */ | |
98 | 0, /* Source Mask. */ | |
99 | 0x0000ffff, /* Dest Mask. */ | |
100 | TRUE), /* PC relative offset? */ | |
7ba29e2a NC |
101 | |
102 | /* The low half of a PCREL 32 bit relocation. */ | |
07d6d2b8 AM |
103 | HOWTO (R_MICROBLAZE_32_PCREL_LO, /* Type. */ |
104 | 0, /* Rightshift. */ | |
105 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
106 | 16, /* Bitsize. */ | |
107 | TRUE, /* PC_relative. */ | |
108 | 0, /* Bitpos. */ | |
109 | complain_overflow_signed, /* Complain on overflow. */ | |
110 | bfd_elf_generic_reloc, /* Special Function. */ | |
111 | "R_MICROBLAZE_32_PCREL_LO", /* Name. */ | |
112 | FALSE, /* Partial Inplace. */ | |
113 | 0, /* Source Mask. */ | |
114 | 0x0000ffff, /* Dest Mask. */ | |
115 | TRUE), /* PC relative offset? */ | |
7ba29e2a NC |
116 | |
117 | /* A 64 bit relocation. Table entry not really used. */ | |
07d6d2b8 AM |
118 | HOWTO (R_MICROBLAZE_64, /* Type. */ |
119 | 0, /* Rightshift. */ | |
120 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
121 | 16, /* Bitsize. */ | |
122 | FALSE, /* PC_relative. */ | |
123 | 0, /* Bitpos. */ | |
124 | complain_overflow_dont, /* Complain on overflow. */ | |
125 | bfd_elf_generic_reloc,/* Special Function. */ | |
126 | "R_MICROBLAZE_64", /* Name. */ | |
127 | FALSE, /* Partial Inplace. */ | |
128 | 0, /* Source Mask. */ | |
129 | 0x0000ffff, /* Dest Mask. */ | |
130 | FALSE), /* PC relative offset? */ | |
7ba29e2a NC |
131 | |
132 | /* The low half of a 32 bit relocation. */ | |
07d6d2b8 AM |
133 | HOWTO (R_MICROBLAZE_32_LO, /* Type. */ |
134 | 0, /* Rightshift. */ | |
135 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
136 | 16, /* Bitsize. */ | |
137 | FALSE, /* PC_relative. */ | |
138 | 0, /* Bitpos. */ | |
139 | complain_overflow_signed, /* Complain on overflow. */ | |
140 | bfd_elf_generic_reloc,/* Special Function. */ | |
141 | "R_MICROBLAZE_32_LO", /* Name. */ | |
142 | FALSE, /* Partial Inplace. */ | |
143 | 0, /* Source Mask. */ | |
144 | 0x0000ffff, /* Dest Mask. */ | |
145 | FALSE), /* PC relative offset? */ | |
7ba29e2a NC |
146 | |
147 | /* Read-only small data section relocation. */ | |
07d6d2b8 AM |
148 | HOWTO (R_MICROBLAZE_SRO32, /* Type. */ |
149 | 0, /* Rightshift. */ | |
150 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
151 | 16, /* Bitsize. */ | |
152 | FALSE, /* PC_relative. */ | |
153 | 0, /* Bitpos. */ | |
154 | complain_overflow_bitfield, /* Complain on overflow. */ | |
155 | bfd_elf_generic_reloc,/* Special Function. */ | |
156 | "R_MICROBLAZE_SRO32", /* Name. */ | |
157 | FALSE, /* Partial Inplace. */ | |
158 | 0, /* Source Mask. */ | |
159 | 0x0000ffff, /* Dest Mask. */ | |
160 | FALSE), /* PC relative offset? */ | |
7ba29e2a NC |
161 | |
162 | /* Read-write small data area relocation. */ | |
07d6d2b8 AM |
163 | HOWTO (R_MICROBLAZE_SRW32, /* Type. */ |
164 | 0, /* Rightshift. */ | |
165 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
166 | 16, /* Bitsize. */ | |
167 | FALSE, /* PC_relative. */ | |
168 | 0, /* Bitpos. */ | |
169 | complain_overflow_bitfield, /* Complain on overflow. */ | |
170 | bfd_elf_generic_reloc,/* Special Function. */ | |
171 | "R_MICROBLAZE_SRW32", /* Name. */ | |
172 | FALSE, /* Partial Inplace. */ | |
173 | 0, /* Source Mask. */ | |
174 | 0x0000ffff, /* Dest Mask. */ | |
175 | FALSE), /* PC relative offset? */ | |
176 | ||
177 | /* This reloc does nothing. Used for relaxation. */ | |
7ba29e2a | 178 | HOWTO (R_MICROBLAZE_64_NONE, /* Type. */ |
07d6d2b8 AM |
179 | 0, /* Rightshift. */ |
180 | 3, /* Size (0 = byte, 1 = short, 2 = long). */ | |
181 | 0, /* Bitsize. */ | |
182 | TRUE, /* PC_relative. */ | |
183 | 0, /* Bitpos. */ | |
184 | complain_overflow_dont, /* Complain on overflow. */ | |
185 | NULL, /* Special Function. */ | |
186 | "R_MICROBLAZE_64_NONE",/* Name. */ | |
187 | FALSE, /* Partial Inplace. */ | |
188 | 0, /* Source Mask. */ | |
189 | 0, /* Dest Mask. */ | |
190 | FALSE), /* PC relative offset? */ | |
7ba29e2a NC |
191 | |
192 | /* Symbol Op Symbol relocation. */ | |
07d6d2b8 AM |
193 | HOWTO (R_MICROBLAZE_32_SYM_OP_SYM, /* Type. */ |
194 | 0, /* Rightshift. */ | |
195 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
196 | 32, /* Bitsize. */ | |
197 | FALSE, /* PC_relative. */ | |
198 | 0, /* Bitpos. */ | |
199 | complain_overflow_bitfield, /* Complain on overflow. */ | |
200 | bfd_elf_generic_reloc,/* Special Function. */ | |
201 | "R_MICROBLAZE_32_SYM_OP_SYM", /* Name. */ | |
202 | FALSE, /* Partial Inplace. */ | |
203 | 0, /* Source Mask. */ | |
204 | 0xffffffff, /* Dest Mask. */ | |
205 | FALSE), /* PC relative offset? */ | |
7ba29e2a NC |
206 | |
207 | /* GNU extension to record C++ vtable hierarchy. */ | |
208 | HOWTO (R_MICROBLAZE_GNU_VTINHERIT, /* Type. */ | |
07d6d2b8 AM |
209 | 0, /* Rightshift. */ |
210 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
211 | 0, /* Bitsize. */ | |
212 | FALSE, /* PC_relative. */ | |
213 | 0, /* Bitpos. */ | |
214 | complain_overflow_dont,/* Complain on overflow. */ | |
215 | NULL, /* Special Function. */ | |
216 | "R_MICROBLAZE_GNU_VTINHERIT", /* Name. */ | |
217 | FALSE, /* Partial Inplace. */ | |
218 | 0, /* Source Mask. */ | |
219 | 0, /* Dest Mask. */ | |
220 | FALSE), /* PC relative offset? */ | |
7ba29e2a NC |
221 | |
222 | /* GNU extension to record C++ vtable member usage. */ | |
223 | HOWTO (R_MICROBLAZE_GNU_VTENTRY, /* Type. */ | |
07d6d2b8 AM |
224 | 0, /* Rightshift. */ |
225 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
226 | 0, /* Bitsize. */ | |
227 | FALSE, /* PC_relative. */ | |
228 | 0, /* Bitpos. */ | |
229 | complain_overflow_dont,/* Complain on overflow. */ | |
230 | _bfd_elf_rel_vtable_reloc_fn, /* Special Function. */ | |
231 | "R_MICROBLAZE_GNU_VTENTRY", /* Name. */ | |
232 | FALSE, /* Partial Inplace. */ | |
233 | 0, /* Source Mask. */ | |
234 | 0, /* Dest Mask. */ | |
235 | FALSE), /* PC relative offset? */ | |
7ba29e2a NC |
236 | |
237 | /* A 64 bit GOTPC relocation. Table-entry not really used. */ | |
07d6d2b8 AM |
238 | HOWTO (R_MICROBLAZE_GOTPC_64, /* Type. */ |
239 | 0, /* Rightshift. */ | |
240 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
241 | 16, /* Bitsize. */ | |
242 | TRUE, /* PC_relative. */ | |
243 | 0, /* Bitpos. */ | |
244 | complain_overflow_dont, /* Complain on overflow. */ | |
245 | bfd_elf_generic_reloc, /* Special Function. */ | |
246 | "R_MICROBLAZE_GOTPC_64", /* Name. */ | |
247 | FALSE, /* Partial Inplace. */ | |
248 | 0, /* Source Mask. */ | |
249 | 0x0000ffff, /* Dest Mask. */ | |
250 | TRUE), /* PC relative offset? */ | |
7ba29e2a | 251 | |
3f0a5f17 | 252 | /* A 64 bit TEXTPCREL relocation. Table-entry not really used. */ |
4b24dd1a | 253 | HOWTO (R_MICROBLAZE_TEXTPCREL_64, /* Type. */ |
3f0a5f17 ME |
254 | 0, /* Rightshift. */ |
255 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
256 | 16, /* Bitsize. */ | |
257 | TRUE, /* PC_relative. */ | |
258 | 0, /* Bitpos. */ | |
259 | complain_overflow_dont, /* Complain on overflow. */ | |
260 | bfd_elf_generic_reloc, /* Special Function. */ | |
4b24dd1a | 261 | "R_MICROBLAZE_TEXTPCREL_64", /* Name. */ |
3f0a5f17 ME |
262 | FALSE, /* Partial Inplace. */ |
263 | 0, /* Source Mask. */ | |
264 | 0x0000ffff, /* Dest Mask. */ | |
4b24dd1a | 265 | TRUE), /* PC relative offset? */ |
3f0a5f17 | 266 | |
7ba29e2a NC |
267 | /* A 64 bit GOT relocation. Table-entry not really used. */ |
268 | HOWTO (R_MICROBLAZE_GOT_64, /* Type. */ | |
07d6d2b8 AM |
269 | 0, /* Rightshift. */ |
270 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
271 | 16, /* Bitsize. */ | |
272 | FALSE, /* PC_relative. */ | |
273 | 0, /* Bitpos. */ | |
274 | complain_overflow_dont, /* Complain on overflow. */ | |
275 | bfd_elf_generic_reloc,/* Special Function. */ | |
276 | "R_MICROBLAZE_GOT_64",/* Name. */ | |
277 | FALSE, /* Partial Inplace. */ | |
278 | 0, /* Source Mask. */ | |
279 | 0x0000ffff, /* Dest Mask. */ | |
280 | FALSE), /* PC relative offset? */ | |
7ba29e2a | 281 | |
3f0a5f17 ME |
282 | /* A 64 bit TEXTREL relocation. Table-entry not really used. */ |
283 | HOWTO (R_MICROBLAZE_TEXTREL_64, /* Type. */ | |
284 | 0, /* Rightshift. */ | |
285 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
286 | 16, /* Bitsize. */ | |
287 | FALSE, /* PC_relative. */ | |
288 | 0, /* Bitpos. */ | |
289 | complain_overflow_dont, /* Complain on overflow. */ | |
290 | bfd_elf_generic_reloc,/* Special Function. */ | |
291 | "R_MICROBLAZE_TEXTREL_64",/* Name. */ | |
292 | FALSE, /* Partial Inplace. */ | |
293 | 0, /* Source Mask. */ | |
294 | 0x0000ffff, /* Dest Mask. */ | |
4b24dd1a | 295 | FALSE), /* PC relative offset? */ |
3f0a5f17 | 296 | |
7ba29e2a NC |
297 | /* A 64 bit PLT relocation. Table-entry not really used. */ |
298 | HOWTO (R_MICROBLAZE_PLT_64, /* Type. */ | |
07d6d2b8 AM |
299 | 0, /* Rightshift. */ |
300 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
301 | 16, /* Bitsize. */ | |
302 | TRUE, /* PC_relative. */ | |
303 | 0, /* Bitpos. */ | |
304 | complain_overflow_dont, /* Complain on overflow. */ | |
305 | bfd_elf_generic_reloc,/* Special Function. */ | |
306 | "R_MICROBLAZE_PLT_64",/* Name. */ | |
307 | FALSE, /* Partial Inplace. */ | |
308 | 0, /* Source Mask. */ | |
309 | 0x0000ffff, /* Dest Mask. */ | |
310 | TRUE), /* PC relative offset? */ | |
7ba29e2a NC |
311 | |
312 | /* Table-entry not really used. */ | |
07d6d2b8 AM |
313 | HOWTO (R_MICROBLAZE_REL, /* Type. */ |
314 | 0, /* Rightshift. */ | |
315 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
316 | 16, /* Bitsize. */ | |
317 | TRUE, /* PC_relative. */ | |
318 | 0, /* Bitpos. */ | |
319 | complain_overflow_dont, /* Complain on overflow. */ | |
320 | bfd_elf_generic_reloc,/* Special Function. */ | |
321 | "R_MICROBLAZE_REL", /* Name. */ | |
322 | FALSE, /* Partial Inplace. */ | |
323 | 0, /* Source Mask. */ | |
324 | 0x0000ffff, /* Dest Mask. */ | |
325 | TRUE), /* PC relative offset? */ | |
7ba29e2a NC |
326 | |
327 | /* Table-entry not really used. */ | |
328 | HOWTO (R_MICROBLAZE_JUMP_SLOT,/* Type. */ | |
07d6d2b8 AM |
329 | 0, /* Rightshift. */ |
330 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
331 | 16, /* Bitsize. */ | |
332 | TRUE, /* PC_relative. */ | |
333 | 0, /* Bitpos. */ | |
334 | complain_overflow_dont, /* Complain on overflow. */ | |
335 | bfd_elf_generic_reloc,/* Special Function. */ | |
336 | "R_MICROBLAZE_JUMP_SLOT", /* Name. */ | |
337 | FALSE, /* Partial Inplace. */ | |
338 | 0, /* Source Mask. */ | |
339 | 0x0000ffff, /* Dest Mask. */ | |
340 | TRUE), /* PC relative offset? */ | |
7ba29e2a NC |
341 | |
342 | /* Table-entry not really used. */ | |
343 | HOWTO (R_MICROBLAZE_GLOB_DAT,/* Type. */ | |
07d6d2b8 AM |
344 | 0, /* Rightshift. */ |
345 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
346 | 16, /* Bitsize. */ | |
347 | TRUE, /* PC_relative. */ | |
348 | 0, /* Bitpos. */ | |
349 | complain_overflow_dont, /* Complain on overflow. */ | |
350 | bfd_elf_generic_reloc,/* Special Function. */ | |
351 | "R_MICROBLAZE_GLOB_DAT", /* Name. */ | |
352 | FALSE, /* Partial Inplace. */ | |
353 | 0, /* Source Mask. */ | |
354 | 0x0000ffff, /* Dest Mask. */ | |
355 | TRUE), /* PC relative offset? */ | |
7ba29e2a NC |
356 | |
357 | /* A 64 bit GOT relative relocation. Table-entry not really used. */ | |
07d6d2b8 AM |
358 | HOWTO (R_MICROBLAZE_GOTOFF_64, /* Type. */ |
359 | 0, /* Rightshift. */ | |
360 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
361 | 16, /* Bitsize. */ | |
362 | FALSE, /* PC_relative. */ | |
363 | 0, /* Bitpos. */ | |
364 | complain_overflow_dont, /* Complain on overflow. */ | |
365 | bfd_elf_generic_reloc,/* Special Function. */ | |
366 | "R_MICROBLAZE_GOTOFF_64", /* Name. */ | |
367 | FALSE, /* Partial Inplace. */ | |
368 | 0, /* Source Mask. */ | |
369 | 0x0000ffff, /* Dest Mask. */ | |
370 | FALSE), /* PC relative offset? */ | |
7ba29e2a NC |
371 | |
372 | /* A 32 bit GOT relative relocation. Table-entry not really used. */ | |
07d6d2b8 AM |
373 | HOWTO (R_MICROBLAZE_GOTOFF_32, /* Type. */ |
374 | 0, /* Rightshift. */ | |
375 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
376 | 16, /* Bitsize. */ | |
377 | FALSE, /* PC_relative. */ | |
378 | 0, /* Bitpos. */ | |
379 | complain_overflow_dont, /* Complain on overflow. */ | |
380 | bfd_elf_generic_reloc, /* Special Function. */ | |
381 | "R_MICROBLAZE_GOTOFF_32", /* Name. */ | |
382 | FALSE, /* Partial Inplace. */ | |
383 | 0, /* Source Mask. */ | |
384 | 0x0000ffff, /* Dest Mask. */ | |
385 | FALSE), /* PC relative offset? */ | |
7ba29e2a NC |
386 | |
387 | /* COPY relocation. Table-entry not really used. */ | |
07d6d2b8 AM |
388 | HOWTO (R_MICROBLAZE_COPY, /* Type. */ |
389 | 0, /* Rightshift. */ | |
390 | 2, /* Size (0 = byte, 1 = short, 2 = long). */ | |
391 | 16, /* Bitsize. */ | |
392 | FALSE, /* PC_relative. */ | |
393 | 0, /* Bitpos. */ | |
394 | complain_overflow_dont, /* Complain on overflow. */ | |
395 | bfd_elf_generic_reloc,/* Special Function. */ | |
396 | "R_MICROBLAZE_COPY", /* Name. */ | |
397 | FALSE, /* Partial Inplace. */ | |
398 | 0, /* Source Mask. */ | |
399 | 0x0000ffff, /* Dest Mask. */ | |
400 | FALSE), /* PC relative offset? */ | |
69b06cc8 ME |
401 | |
402 | /* Marker relocs for TLS. */ | |
403 | HOWTO (R_MICROBLAZE_TLS, | |
404 | 0, /* rightshift */ | |
405 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
406 | 32, /* bitsize */ | |
407 | FALSE, /* pc_relative */ | |
408 | 0, /* bitpos */ | |
409 | complain_overflow_dont, /* complain_on_overflow */ | |
410 | bfd_elf_generic_reloc, /* special_function */ | |
411 | "R_MICROBLAZE_TLS", /* name */ | |
412 | FALSE, /* partial_inplace */ | |
413 | 0, /* src_mask */ | |
414 | 0x0000ffff, /* dst_mask */ | |
415 | FALSE), /* pcrel_offset */ | |
416 | ||
417 | HOWTO (R_MICROBLAZE_TLSGD, | |
418 | 0, /* rightshift */ | |
419 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
420 | 32, /* bitsize */ | |
421 | FALSE, /* pc_relative */ | |
422 | 0, /* bitpos */ | |
423 | complain_overflow_dont, /* complain_on_overflow */ | |
424 | bfd_elf_generic_reloc, /* special_function */ | |
425 | "R_MICROBLAZE_TLSGD", /* name */ | |
426 | FALSE, /* partial_inplace */ | |
427 | 0, /* src_mask */ | |
428 | 0x0000ffff, /* dst_mask */ | |
429 | FALSE), /* pcrel_offset */ | |
430 | ||
431 | HOWTO (R_MICROBLAZE_TLSLD, | |
432 | 0, /* rightshift */ | |
433 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
434 | 32, /* bitsize */ | |
435 | FALSE, /* pc_relative */ | |
436 | 0, /* bitpos */ | |
437 | complain_overflow_dont, /* complain_on_overflow */ | |
438 | bfd_elf_generic_reloc, /* special_function */ | |
439 | "R_MICROBLAZE_TLSLD", /* name */ | |
440 | FALSE, /* partial_inplace */ | |
441 | 0, /* src_mask */ | |
442 | 0x0000ffff, /* dst_mask */ | |
443 | FALSE), /* pcrel_offset */ | |
444 | ||
445 | /* Computes the load module index of the load module that contains the | |
446 | definition of its TLS sym. */ | |
447 | HOWTO (R_MICROBLAZE_TLSDTPMOD32, | |
448 | 0, /* rightshift */ | |
449 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
450 | 32, /* bitsize */ | |
451 | FALSE, /* pc_relative */ | |
452 | 0, /* bitpos */ | |
453 | complain_overflow_dont, /* complain_on_overflow */ | |
454 | bfd_elf_generic_reloc, /* special_function */ | |
455 | "R_MICROBLAZE_TLSDTPMOD32", /* name */ | |
456 | FALSE, /* partial_inplace */ | |
457 | 0, /* src_mask */ | |
458 | 0x0000ffff, /* dst_mask */ | |
459 | FALSE), /* pcrel_offset */ | |
460 | ||
461 | /* Computes a dtv-relative displacement, the difference between the value | |
462 | of sym+add and the base address of the thread-local storage block that | |
463 | contains the definition of sym, minus 0x8000. Used for initializing GOT */ | |
464 | HOWTO (R_MICROBLAZE_TLSDTPREL32, | |
465 | 0, /* rightshift */ | |
466 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
467 | 32, /* bitsize */ | |
468 | FALSE, /* pc_relative */ | |
469 | 0, /* bitpos */ | |
470 | complain_overflow_dont, /* complain_on_overflow */ | |
471 | bfd_elf_generic_reloc, /* special_function */ | |
472 | "R_MICROBLAZE_TLSDTPREL32", /* name */ | |
473 | FALSE, /* partial_inplace */ | |
474 | 0, /* src_mask */ | |
475 | 0x0000ffff, /* dst_mask */ | |
476 | FALSE), /* pcrel_offset */ | |
477 | ||
478 | /* Computes a dtv-relative displacement, the difference between the value | |
479 | of sym+add and the base address of the thread-local storage block that | |
480 | contains the definition of sym, minus 0x8000. */ | |
481 | HOWTO (R_MICROBLAZE_TLSDTPREL64, | |
482 | 0, /* rightshift */ | |
483 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
484 | 32, /* bitsize */ | |
485 | FALSE, /* pc_relative */ | |
486 | 0, /* bitpos */ | |
487 | complain_overflow_dont, /* complain_on_overflow */ | |
488 | bfd_elf_generic_reloc, /* special_function */ | |
489 | "R_MICROBLAZE_TLSDTPREL64", /* name */ | |
490 | FALSE, /* partial_inplace */ | |
491 | 0, /* src_mask */ | |
492 | 0x0000ffff, /* dst_mask */ | |
493 | FALSE), /* pcrel_offset */ | |
494 | ||
495 | /* Computes a tp-relative displacement, the difference between the value of | |
496 | sym+add and the value of the thread pointer (r13). */ | |
497 | HOWTO (R_MICROBLAZE_TLSGOTTPREL32, | |
498 | 0, /* rightshift */ | |
499 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
500 | 32, /* bitsize */ | |
501 | FALSE, /* pc_relative */ | |
502 | 0, /* bitpos */ | |
503 | complain_overflow_dont, /* complain_on_overflow */ | |
504 | bfd_elf_generic_reloc, /* special_function */ | |
505 | "R_MICROBLAZE_TLSGOTTPREL32", /* name */ | |
506 | FALSE, /* partial_inplace */ | |
507 | 0, /* src_mask */ | |
508 | 0x0000ffff, /* dst_mask */ | |
509 | FALSE), /* pcrel_offset */ | |
510 | ||
511 | /* Computes a tp-relative displacement, the difference between the value of | |
512 | sym+add and the value of the thread pointer (r13). */ | |
513 | HOWTO (R_MICROBLAZE_TLSTPREL32, | |
514 | 0, /* rightshift */ | |
515 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
516 | 32, /* bitsize */ | |
517 | FALSE, /* pc_relative */ | |
518 | 0, /* bitpos */ | |
519 | complain_overflow_dont, /* complain_on_overflow */ | |
520 | bfd_elf_generic_reloc, /* special_function */ | |
521 | "R_MICROBLAZE_TLSTPREL32", /* name */ | |
522 | FALSE, /* partial_inplace */ | |
523 | 0, /* src_mask */ | |
524 | 0x0000ffff, /* dst_mask */ | |
525 | FALSE), /* pcrel_offset */ | |
526 | ||
7ba29e2a NC |
527 | }; |
528 | ||
529 | #ifndef NUM_ELEM | |
530 | #define NUM_ELEM(a) (sizeof (a) / sizeof (a)[0]) | |
531 | #endif | |
532 | \f | |
533 | /* Initialize the microblaze_elf_howto_table, so that linear accesses can be done. */ | |
534 | ||
535 | static void | |
536 | microblaze_elf_howto_init (void) | |
537 | { | |
538 | unsigned int i; | |
539 | ||
540 | for (i = NUM_ELEM (microblaze_elf_howto_raw); i--;) | |
541 | { | |
542 | unsigned int type; | |
543 | ||
544 | type = microblaze_elf_howto_raw[i].type; | |
545 | ||
546 | BFD_ASSERT (type < NUM_ELEM (microblaze_elf_howto_table)); | |
547 | ||
548 | microblaze_elf_howto_table [type] = & microblaze_elf_howto_raw [i]; | |
549 | } | |
550 | } | |
551 | \f | |
552 | static reloc_howto_type * | |
553 | microblaze_elf_reloc_type_lookup (bfd * abfd ATTRIBUTE_UNUSED, | |
554 | bfd_reloc_code_real_type code) | |
555 | { | |
556 | enum elf_microblaze_reloc_type microblaze_reloc = R_MICROBLAZE_NONE; | |
557 | ||
558 | switch (code) | |
559 | { | |
560 | case BFD_RELOC_NONE: | |
561 | microblaze_reloc = R_MICROBLAZE_NONE; | |
562 | break; | |
563 | case BFD_RELOC_MICROBLAZE_64_NONE: | |
564 | microblaze_reloc = R_MICROBLAZE_64_NONE; | |
565 | break; | |
566 | case BFD_RELOC_32: | |
567 | microblaze_reloc = R_MICROBLAZE_32; | |
568 | break; | |
569 | /* RVA is treated the same as 32 */ | |
570 | case BFD_RELOC_RVA: | |
571 | microblaze_reloc = R_MICROBLAZE_32; | |
572 | break; | |
573 | case BFD_RELOC_32_PCREL: | |
574 | microblaze_reloc = R_MICROBLAZE_32_PCREL; | |
575 | break; | |
576 | case BFD_RELOC_64_PCREL: | |
577 | microblaze_reloc = R_MICROBLAZE_64_PCREL; | |
578 | break; | |
579 | case BFD_RELOC_MICROBLAZE_32_LO_PCREL: | |
580 | microblaze_reloc = R_MICROBLAZE_32_PCREL_LO; | |
581 | break; | |
582 | case BFD_RELOC_64: | |
583 | microblaze_reloc = R_MICROBLAZE_64; | |
584 | break; | |
585 | case BFD_RELOC_MICROBLAZE_32_LO: | |
586 | microblaze_reloc = R_MICROBLAZE_32_LO; | |
587 | break; | |
588 | case BFD_RELOC_MICROBLAZE_32_ROSDA: | |
589 | microblaze_reloc = R_MICROBLAZE_SRO32; | |
590 | break; | |
591 | case BFD_RELOC_MICROBLAZE_32_RWSDA: | |
592 | microblaze_reloc = R_MICROBLAZE_SRW32; | |
593 | break; | |
594 | case BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM: | |
595 | microblaze_reloc = R_MICROBLAZE_32_SYM_OP_SYM; | |
596 | break; | |
597 | case BFD_RELOC_VTABLE_INHERIT: | |
598 | microblaze_reloc = R_MICROBLAZE_GNU_VTINHERIT; | |
599 | break; | |
600 | case BFD_RELOC_VTABLE_ENTRY: | |
601 | microblaze_reloc = R_MICROBLAZE_GNU_VTENTRY; | |
602 | break; | |
603 | case BFD_RELOC_MICROBLAZE_64_GOTPC: | |
604 | microblaze_reloc = R_MICROBLAZE_GOTPC_64; | |
605 | break; | |
606 | case BFD_RELOC_MICROBLAZE_64_GOT: | |
607 | microblaze_reloc = R_MICROBLAZE_GOT_64; | |
608 | break; | |
3f0a5f17 ME |
609 | case BFD_RELOC_MICROBLAZE_64_TEXTPCREL: |
610 | microblaze_reloc = R_MICROBLAZE_TEXTPCREL_64; | |
611 | break; | |
612 | case BFD_RELOC_MICROBLAZE_64_TEXTREL: | |
613 | microblaze_reloc = R_MICROBLAZE_TEXTREL_64; | |
614 | break; | |
7ba29e2a NC |
615 | case BFD_RELOC_MICROBLAZE_64_PLT: |
616 | microblaze_reloc = R_MICROBLAZE_PLT_64; | |
617 | break; | |
618 | case BFD_RELOC_MICROBLAZE_64_GOTOFF: | |
619 | microblaze_reloc = R_MICROBLAZE_GOTOFF_64; | |
620 | break; | |
621 | case BFD_RELOC_MICROBLAZE_32_GOTOFF: | |
622 | microblaze_reloc = R_MICROBLAZE_GOTOFF_32; | |
623 | break; | |
69b06cc8 ME |
624 | case BFD_RELOC_MICROBLAZE_64_TLSGD: |
625 | microblaze_reloc = R_MICROBLAZE_TLSGD; | |
626 | break; | |
627 | case BFD_RELOC_MICROBLAZE_64_TLSLD: | |
628 | microblaze_reloc = R_MICROBLAZE_TLSLD; | |
629 | break; | |
630 | case BFD_RELOC_MICROBLAZE_32_TLSDTPREL: | |
631 | microblaze_reloc = R_MICROBLAZE_TLSDTPREL32; | |
632 | break; | |
633 | case BFD_RELOC_MICROBLAZE_64_TLSDTPREL: | |
634 | microblaze_reloc = R_MICROBLAZE_TLSDTPREL64; | |
635 | break; | |
636 | case BFD_RELOC_MICROBLAZE_32_TLSDTPMOD: | |
637 | microblaze_reloc = R_MICROBLAZE_TLSDTPMOD32; | |
638 | break; | |
639 | case BFD_RELOC_MICROBLAZE_64_TLSGOTTPREL: | |
640 | microblaze_reloc = R_MICROBLAZE_TLSGOTTPREL32; | |
641 | break; | |
642 | case BFD_RELOC_MICROBLAZE_64_TLSTPREL: | |
643 | microblaze_reloc = R_MICROBLAZE_TLSTPREL32; | |
644 | break; | |
7ba29e2a NC |
645 | case BFD_RELOC_MICROBLAZE_COPY: |
646 | microblaze_reloc = R_MICROBLAZE_COPY; | |
647 | break; | |
648 | default: | |
649 | return (reloc_howto_type *) NULL; | |
650 | } | |
651 | ||
652 | if (!microblaze_elf_howto_table [R_MICROBLAZE_32]) | |
653 | /* Initialize howto table if needed. */ | |
654 | microblaze_elf_howto_init (); | |
655 | ||
656 | return microblaze_elf_howto_table [(int) microblaze_reloc]; | |
657 | }; | |
658 | ||
659 | static reloc_howto_type * | |
660 | microblaze_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
661 | const char *r_name) | |
662 | { | |
663 | unsigned int i; | |
664 | ||
665 | for (i = 0; i < NUM_ELEM (microblaze_elf_howto_raw); i++) | |
666 | if (microblaze_elf_howto_raw[i].name != NULL | |
667 | && strcasecmp (microblaze_elf_howto_raw[i].name, r_name) == 0) | |
668 | return µblaze_elf_howto_raw[i]; | |
669 | ||
670 | return NULL; | |
671 | } | |
672 | ||
673 | /* Set the howto pointer for a RCE ELF reloc. */ | |
674 | ||
f3185997 | 675 | static bfd_boolean |
0aa13fee | 676 | microblaze_elf_info_to_howto (bfd * abfd, |
7ba29e2a NC |
677 | arelent * cache_ptr, |
678 | Elf_Internal_Rela * dst) | |
679 | { | |
cd21f5da NC |
680 | unsigned int r_type; |
681 | ||
7ba29e2a NC |
682 | if (!microblaze_elf_howto_table [R_MICROBLAZE_32]) |
683 | /* Initialize howto table if needed. */ | |
684 | microblaze_elf_howto_init (); | |
685 | ||
cd21f5da NC |
686 | r_type = ELF32_R_TYPE (dst->r_info); |
687 | if (r_type >= R_MICROBLAZE_max) | |
688 | { | |
695344c0 | 689 | /* xgettext:c-format */ |
0aa13fee | 690 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
4eca0228 | 691 | abfd, r_type); |
cd21f5da | 692 | bfd_set_error (bfd_error_bad_value); |
f3185997 | 693 | return FALSE; |
cd21f5da | 694 | } |
7ba29e2a | 695 | |
cd21f5da | 696 | cache_ptr->howto = microblaze_elf_howto_table [r_type]; |
f3185997 | 697 | return TRUE; |
7ba29e2a NC |
698 | } |
699 | ||
700 | /* Microblaze ELF local labels start with 'L.' or '$L', not '.L'. */ | |
701 | ||
702 | static bfd_boolean | |
703 | microblaze_elf_is_local_label_name (bfd *abfd, const char *name) | |
704 | { | |
705 | if (name[0] == 'L' && name[1] == '.') | |
706 | return TRUE; | |
707 | ||
708 | if (name[0] == '$' && name[1] == 'L') | |
709 | return TRUE; | |
710 | ||
711 | /* With gcc, the labels go back to starting with '.', so we accept | |
712 | the generic ELF local label syntax as well. */ | |
713 | return _bfd_elf_is_local_label_name (abfd, name); | |
714 | } | |
715 | ||
7ba29e2a NC |
716 | /* ELF linker hash entry. */ |
717 | ||
718 | struct elf32_mb_link_hash_entry | |
719 | { | |
720 | struct elf_link_hash_entry elf; | |
721 | ||
69b06cc8 ME |
722 | /* TLS Reference Types for the symbol; Updated by check_relocs */ |
723 | #define TLS_GD 1 /* GD reloc. */ | |
724 | #define TLS_LD 2 /* LD reloc. */ | |
725 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
726 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
727 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
728 | unsigned char tls_mask; | |
729 | ||
7ba29e2a NC |
730 | }; |
731 | ||
69b06cc8 ME |
732 | #define IS_TLS_GD(x) (x == (TLS_TLS | TLS_GD)) |
733 | #define IS_TLS_LD(x) (x == (TLS_TLS | TLS_LD)) | |
734 | #define IS_TLS_DTPREL(x) (x == (TLS_TLS | TLS_DTPREL)) | |
735 | #define IS_TLS_NONE(x) (x == 0) | |
736 | ||
7ba29e2a NC |
737 | #define elf32_mb_hash_entry(ent) ((struct elf32_mb_link_hash_entry *)(ent)) |
738 | ||
739 | /* ELF linker hash table. */ | |
740 | ||
741 | struct elf32_mb_link_hash_table | |
742 | { | |
743 | struct elf_link_hash_table elf; | |
744 | ||
69b06cc8 ME |
745 | /* TLS Local Dynamic GOT Entry */ |
746 | union { | |
747 | bfd_signed_vma refcount; | |
748 | bfd_vma offset; | |
749 | } tlsld_got; | |
7ba29e2a NC |
750 | }; |
751 | ||
69b06cc8 ME |
752 | /* Nonzero if this section has TLS related relocations. */ |
753 | #define has_tls_reloc sec_flg0 | |
754 | ||
7ba29e2a NC |
755 | /* Get the ELF linker hash table from a link_info structure. */ |
756 | ||
0f55320b AM |
757 | #define elf32_mb_hash_table(p) \ |
758 | ((is_elf_hash_table ((p)->hash) \ | |
759 | && elf_hash_table_id (elf_hash_table (p)) == MICROBLAZE_ELF_DATA) \ | |
760 | ? (struct elf32_mb_link_hash_table *) (p)->hash : NULL) | |
7ba29e2a NC |
761 | |
762 | /* Create an entry in a microblaze ELF linker hash table. */ | |
763 | ||
764 | static struct bfd_hash_entry * | |
765 | link_hash_newfunc (struct bfd_hash_entry *entry, | |
766 | struct bfd_hash_table *table, | |
767 | const char *string) | |
768 | { | |
769 | /* Allocate the structure if it has not already been allocated by a | |
770 | subclass. */ | |
771 | if (entry == NULL) | |
772 | { | |
773 | entry = bfd_hash_allocate (table, | |
774 | sizeof (struct elf32_mb_link_hash_entry)); | |
775 | if (entry == NULL) | |
776 | return entry; | |
777 | } | |
778 | ||
779 | /* Call the allocation method of the superclass. */ | |
780 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
781 | if (entry != NULL) | |
782 | { | |
783 | struct elf32_mb_link_hash_entry *eh; | |
784 | ||
785 | eh = (struct elf32_mb_link_hash_entry *) entry; | |
69b06cc8 | 786 | eh->tls_mask = 0; |
7ba29e2a NC |
787 | } |
788 | ||
789 | return entry; | |
790 | } | |
791 | ||
792 | /* Create a mb ELF linker hash table. */ | |
793 | ||
794 | static struct bfd_link_hash_table * | |
795 | microblaze_elf_link_hash_table_create (bfd *abfd) | |
796 | { | |
797 | struct elf32_mb_link_hash_table *ret; | |
986f0783 | 798 | size_t amt = sizeof (struct elf32_mb_link_hash_table); |
7ba29e2a NC |
799 | |
800 | ret = (struct elf32_mb_link_hash_table *) bfd_zmalloc (amt); | |
801 | if (ret == NULL) | |
802 | return NULL; | |
803 | ||
804 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc, | |
4dfe6ac6 NC |
805 | sizeof (struct elf32_mb_link_hash_entry), |
806 | MICROBLAZE_ELF_DATA)) | |
7ba29e2a NC |
807 | { |
808 | free (ret); | |
809 | return NULL; | |
810 | } | |
811 | ||
812 | return &ret->elf.root; | |
813 | } | |
814 | \f | |
815 | /* Set the values of the small data pointers. */ | |
816 | ||
817 | static void | |
818 | microblaze_elf_final_sdp (struct bfd_link_info *info) | |
819 | { | |
820 | struct bfd_link_hash_entry *h; | |
821 | ||
822 | h = bfd_link_hash_lookup (info->hash, RO_SDA_ANCHOR_NAME, FALSE, FALSE, TRUE); | |
823 | if (h != (struct bfd_link_hash_entry *) NULL | |
824 | && h->type == bfd_link_hash_defined) | |
825 | ro_small_data_pointer = (h->u.def.value | |
07d6d2b8 AM |
826 | + h->u.def.section->output_section->vma |
827 | + h->u.def.section->output_offset); | |
7ba29e2a NC |
828 | |
829 | h = bfd_link_hash_lookup (info->hash, RW_SDA_ANCHOR_NAME, FALSE, FALSE, TRUE); | |
830 | if (h != (struct bfd_link_hash_entry *) NULL | |
831 | && h->type == bfd_link_hash_defined) | |
832 | rw_small_data_pointer = (h->u.def.value | |
07d6d2b8 AM |
833 | + h->u.def.section->output_section->vma |
834 | + h->u.def.section->output_offset); | |
7ba29e2a NC |
835 | } |
836 | ||
69b06cc8 ME |
837 | static bfd_vma |
838 | dtprel_base (struct bfd_link_info *info) | |
839 | { | |
840 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
841 | if (elf_hash_table (info)->tls_sec == NULL) | |
842 | return 0; | |
843 | return elf_hash_table (info)->tls_sec->vma; | |
844 | } | |
845 | ||
846 | /* The size of the thread control block. */ | |
847 | #define TCB_SIZE 8 | |
848 | ||
849 | /* Output a simple dynamic relocation into SRELOC. */ | |
850 | ||
851 | static void | |
852 | microblaze_elf_output_dynamic_relocation (bfd *output_bfd, | |
853 | asection *sreloc, | |
854 | unsigned long reloc_index, | |
855 | unsigned long indx, | |
856 | int r_type, | |
857 | bfd_vma offset, | |
858 | bfd_vma addend) | |
859 | { | |
860 | ||
861 | Elf_Internal_Rela rel; | |
862 | ||
863 | rel.r_info = ELF32_R_INFO (indx, r_type); | |
864 | rel.r_offset = offset; | |
865 | rel.r_addend = addend; | |
866 | ||
867 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
07d6d2b8 | 868 | (sreloc->contents + reloc_index * sizeof (Elf32_External_Rela))); |
69b06cc8 ME |
869 | } |
870 | ||
7ba29e2a NC |
871 | /* This code is taken from elf32-m32r.c |
872 | There is some attempt to make this function usable for many architectures, | |
873 | both USE_REL and USE_RELA ['twould be nice if such a critter existed], | |
874 | if only to serve as a learning tool. | |
875 | ||
876 | The RELOCATE_SECTION function is called by the new ELF backend linker | |
877 | to handle the relocations for a section. | |
878 | ||
879 | The relocs are always passed as Rela structures; if the section | |
880 | actually uses Rel structures, the r_addend field will always be | |
881 | zero. | |
882 | ||
883 | This function is responsible for adjust the section contents as | |
884 | necessary, and (if using Rela relocs and generating a | |
885 | relocatable output file) adjusting the reloc addend as | |
886 | necessary. | |
887 | ||
888 | This function does not have to worry about setting the reloc | |
889 | address or the reloc symbol index. | |
890 | ||
891 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
892 | ||
893 | LOCAL_SECTIONS is an array giving the section in the input file | |
894 | corresponding to the st_shndx field of each local symbol. | |
895 | ||
896 | The global hash table entry for the global symbols can be found | |
897 | via elf_sym_hashes (input_bfd). | |
898 | ||
899 | When generating relocatable output, this function must handle | |
900 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is | |
901 | going to be the section symbol corresponding to the output | |
902 | section, which means that the addend must be adjusted | |
903 | accordingly. */ | |
904 | ||
0f684201 | 905 | static int |
7ba29e2a | 906 | microblaze_elf_relocate_section (bfd *output_bfd, |
07d6d2b8 AM |
907 | struct bfd_link_info *info, |
908 | bfd *input_bfd, | |
909 | asection *input_section, | |
910 | bfd_byte *contents, | |
911 | Elf_Internal_Rela *relocs, | |
912 | Elf_Internal_Sym *local_syms, | |
913 | asection **local_sections) | |
7ba29e2a NC |
914 | { |
915 | struct elf32_mb_link_hash_table *htab; | |
916 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
917 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); | |
918 | Elf_Internal_Rela *rel, *relend; | |
f23200ad | 919 | int endian = (bfd_little_endian (output_bfd)) ? 0 : 2; |
7ba29e2a NC |
920 | /* Assume success. */ |
921 | bfd_boolean ret = TRUE; | |
922 | asection *sreloc; | |
923 | bfd_vma *local_got_offsets; | |
69b06cc8 | 924 | unsigned int tls_type; |
7ba29e2a NC |
925 | |
926 | if (!microblaze_elf_howto_table[R_MICROBLAZE_max-1]) | |
927 | microblaze_elf_howto_init (); | |
928 | ||
929 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
930 | if (htab == NULL) |
931 | return FALSE; | |
932 | ||
7ba29e2a NC |
933 | local_got_offsets = elf_local_got_offsets (input_bfd); |
934 | ||
935 | sreloc = elf_section_data (input_section)->sreloc; | |
936 | ||
937 | rel = relocs; | |
938 | relend = relocs + input_section->reloc_count; | |
939 | for (; rel < relend; rel++) | |
940 | { | |
941 | int r_type; | |
942 | reloc_howto_type *howto; | |
943 | unsigned long r_symndx; | |
944 | bfd_vma addend = rel->r_addend; | |
945 | bfd_vma offset = rel->r_offset; | |
946 | struct elf_link_hash_entry *h; | |
947 | Elf_Internal_Sym *sym; | |
948 | asection *sec; | |
949 | const char *sym_name; | |
950 | bfd_reloc_status_type r = bfd_reloc_ok; | |
951 | const char *errmsg = NULL; | |
952 | bfd_boolean unresolved_reloc = FALSE; | |
953 | ||
954 | h = NULL; | |
955 | r_type = ELF32_R_TYPE (rel->r_info); | |
69b06cc8 ME |
956 | tls_type = 0; |
957 | ||
7ba29e2a NC |
958 | if (r_type < 0 || r_type >= (int) R_MICROBLAZE_max) |
959 | { | |
695344c0 | 960 | /* xgettext:c-format */ |
0aa13fee | 961 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
dae82561 | 962 | input_bfd, (int) r_type); |
7ba29e2a NC |
963 | bfd_set_error (bfd_error_bad_value); |
964 | ret = FALSE; | |
965 | continue; | |
966 | } | |
967 | ||
968 | howto = microblaze_elf_howto_table[r_type]; | |
969 | r_symndx = ELF32_R_SYM (rel->r_info); | |
970 | ||
0e1862bb | 971 | if (bfd_link_relocatable (info)) |
7ba29e2a NC |
972 | { |
973 | /* This is a relocatable link. We don't have to change | |
974 | anything, unless the reloc is against a section symbol, | |
975 | in which case we have to adjust according to where the | |
976 | section symbol winds up in the output section. */ | |
977 | sec = NULL; | |
978 | if (r_symndx >= symtab_hdr->sh_info) | |
979 | /* External symbol. */ | |
980 | continue; | |
981 | ||
982 | /* Local symbol. */ | |
983 | sym = local_syms + r_symndx; | |
984 | sym_name = "<local symbol>"; | |
985 | /* STT_SECTION: symbol is associated with a section. */ | |
986 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
987 | /* Symbol isn't associated with a section. Nothing to do. */ | |
988 | continue; | |
989 | ||
990 | sec = local_sections[r_symndx]; | |
991 | addend += sec->output_offset + sym->st_value; | |
992 | #ifndef USE_REL | |
993 | /* This can't be done for USE_REL because it doesn't mean anything | |
994 | and elf_link_input_bfd asserts this stays zero. */ | |
995 | /* rel->r_addend = addend; */ | |
996 | #endif | |
997 | ||
998 | #ifndef USE_REL | |
999 | /* Addends are stored with relocs. We're done. */ | |
1000 | continue; | |
1001 | #else /* USE_REL */ | |
1002 | /* If partial_inplace, we need to store any additional addend | |
1003 | back in the section. */ | |
1004 | if (!howto->partial_inplace) | |
1005 | continue; | |
1006 | /* ??? Here is a nice place to call a special_function like handler. */ | |
1007 | r = _bfd_relocate_contents (howto, input_bfd, addend, | |
1008 | contents + offset); | |
1009 | #endif /* USE_REL */ | |
1010 | } | |
1011 | else | |
1012 | { | |
1013 | bfd_vma relocation; | |
112fef40 | 1014 | bfd_boolean resolved_to_zero; |
7ba29e2a NC |
1015 | |
1016 | /* This is a final link. */ | |
1017 | sym = NULL; | |
1018 | sec = NULL; | |
1019 | unresolved_reloc = FALSE; | |
1020 | ||
1021 | if (r_symndx < symtab_hdr->sh_info) | |
1022 | { | |
1023 | /* Local symbol. */ | |
1024 | sym = local_syms + r_symndx; | |
1025 | sec = local_sections[r_symndx]; | |
1026 | if (sec == 0) | |
1027 | continue; | |
1028 | sym_name = "<local symbol>"; | |
1029 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
1030 | /* r_addend may have changed if the reference section was | |
1031 | a merge section. */ | |
1032 | addend = rel->r_addend; | |
1033 | } | |
1034 | else | |
1035 | { | |
1036 | /* External symbol. */ | |
1037 | bfd_boolean warned ATTRIBUTE_UNUSED; | |
62d887d4 | 1038 | bfd_boolean ignored ATTRIBUTE_UNUSED; |
7ba29e2a NC |
1039 | |
1040 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
1041 | r_symndx, symtab_hdr, sym_hashes, | |
1042 | h, sec, relocation, | |
62d887d4 | 1043 | unresolved_reloc, warned, ignored); |
7ba29e2a NC |
1044 | sym_name = h->root.root.string; |
1045 | } | |
1046 | ||
1047 | /* Sanity check the address. */ | |
e57278ef | 1048 | if (offset > bfd_get_section_limit (input_bfd, input_section)) |
7ba29e2a NC |
1049 | { |
1050 | r = bfd_reloc_outofrange; | |
1051 | goto check_reloc; | |
1052 | } | |
1053 | ||
112fef40 L |
1054 | resolved_to_zero = (h != NULL |
1055 | && UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); | |
1056 | ||
7ba29e2a NC |
1057 | switch ((int) r_type) |
1058 | { | |
1059 | case (int) R_MICROBLAZE_SRO32 : | |
1060 | { | |
1061 | const char *name; | |
1062 | ||
1063 | /* Only relocate if the symbol is defined. */ | |
1064 | if (sec) | |
1065 | { | |
fd361982 | 1066 | name = bfd_section_name (sec); |
7ba29e2a NC |
1067 | |
1068 | if (strcmp (name, ".sdata2") == 0 | |
1069 | || strcmp (name, ".sbss2") == 0) | |
1070 | { | |
1071 | if (ro_small_data_pointer == 0) | |
1072 | microblaze_elf_final_sdp (info); | |
1073 | if (ro_small_data_pointer == 0) | |
1074 | { | |
1075 | ret = FALSE; | |
1076 | r = bfd_reloc_undefined; | |
1077 | goto check_reloc; | |
1078 | } | |
1079 | ||
1080 | /* At this point `relocation' contains the object's | |
1081 | address. */ | |
1082 | relocation -= ro_small_data_pointer; | |
1083 | /* Now it contains the offset from _SDA2_BASE_. */ | |
1084 | r = _bfd_final_link_relocate (howto, input_bfd, | |
1085 | input_section, | |
1086 | contents, offset, | |
1087 | relocation, addend); | |
1088 | } | |
1089 | else | |
1090 | { | |
4eca0228 | 1091 | _bfd_error_handler |
695344c0 | 1092 | /* xgettext:c-format */ |
38f14ab8 | 1093 | (_("%pB: the target (%s) of an %s relocation" |
871b3ab2 | 1094 | " is in the wrong section (%pA)"), |
dae82561 | 1095 | input_bfd, |
4eca0228 AM |
1096 | sym_name, |
1097 | microblaze_elf_howto_table[(int) r_type]->name, | |
dae82561 | 1098 | sec); |
7ba29e2a NC |
1099 | /*bfd_set_error (bfd_error_bad_value); ??? why? */ |
1100 | ret = FALSE; | |
1101 | continue; | |
1102 | } | |
1103 | } | |
1104 | } | |
1105 | break; | |
1106 | ||
1107 | case (int) R_MICROBLAZE_SRW32 : | |
1108 | { | |
1109 | const char *name; | |
1110 | ||
1111 | /* Only relocate if the symbol is defined. */ | |
1112 | if (sec) | |
1113 | { | |
fd361982 | 1114 | name = bfd_section_name (sec); |
7ba29e2a NC |
1115 | |
1116 | if (strcmp (name, ".sdata") == 0 | |
1117 | || strcmp (name, ".sbss") == 0) | |
1118 | { | |
1119 | if (rw_small_data_pointer == 0) | |
1120 | microblaze_elf_final_sdp (info); | |
1121 | if (rw_small_data_pointer == 0) | |
1122 | { | |
1123 | ret = FALSE; | |
1124 | r = bfd_reloc_undefined; | |
1125 | goto check_reloc; | |
1126 | } | |
1127 | ||
1128 | /* At this point `relocation' contains the object's | |
1129 | address. */ | |
1130 | relocation -= rw_small_data_pointer; | |
1131 | /* Now it contains the offset from _SDA_BASE_. */ | |
1132 | r = _bfd_final_link_relocate (howto, input_bfd, | |
1133 | input_section, | |
1134 | contents, offset, | |
1135 | relocation, addend); | |
1136 | } | |
1137 | else | |
1138 | { | |
4eca0228 | 1139 | _bfd_error_handler |
695344c0 | 1140 | /* xgettext:c-format */ |
38f14ab8 | 1141 | (_("%pB: the target (%s) of an %s relocation" |
871b3ab2 | 1142 | " is in the wrong section (%pA)"), |
dae82561 | 1143 | input_bfd, |
4eca0228 AM |
1144 | sym_name, |
1145 | microblaze_elf_howto_table[(int) r_type]->name, | |
dae82561 | 1146 | sec); |
7ba29e2a NC |
1147 | /*bfd_set_error (bfd_error_bad_value); ??? why? */ |
1148 | ret = FALSE; | |
1149 | continue; | |
1150 | } | |
1151 | } | |
1152 | } | |
1153 | break; | |
1154 | ||
1155 | case (int) R_MICROBLAZE_32_SYM_OP_SYM: | |
1156 | break; /* Do nothing. */ | |
1157 | ||
1158 | case (int) R_MICROBLAZE_GOTPC_64: | |
ce558b89 AM |
1159 | relocation = (htab->elf.sgotplt->output_section->vma |
1160 | + htab->elf.sgotplt->output_offset); | |
7ba29e2a NC |
1161 | relocation -= (input_section->output_section->vma |
1162 | + input_section->output_offset | |
1163 | + offset + INST_WORD_SIZE); | |
1164 | relocation += addend; | |
1165 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
07d6d2b8 | 1166 | contents + offset + endian); |
7ba29e2a | 1167 | bfd_put_16 (input_bfd, relocation & 0xffff, |
07d6d2b8 | 1168 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1169 | break; |
1170 | ||
3f0a5f17 ME |
1171 | case (int) R_MICROBLAZE_TEXTPCREL_64: |
1172 | relocation = input_section->output_section->vma; | |
1173 | relocation -= (input_section->output_section->vma | |
1174 | + input_section->output_offset | |
1175 | + offset + INST_WORD_SIZE); | |
1176 | relocation += addend; | |
1177 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
1178 | contents + offset + endian); | |
1179 | bfd_put_16 (input_bfd, relocation & 0xffff, | |
1180 | contents + offset + endian + INST_WORD_SIZE); | |
1181 | break; | |
1182 | ||
7ba29e2a NC |
1183 | case (int) R_MICROBLAZE_PLT_64: |
1184 | { | |
1185 | bfd_vma immediate; | |
ce558b89 | 1186 | if (htab->elf.splt != NULL && h != NULL |
7ba29e2a NC |
1187 | && h->plt.offset != (bfd_vma) -1) |
1188 | { | |
ce558b89 AM |
1189 | relocation = (htab->elf.splt->output_section->vma |
1190 | + htab->elf.splt->output_offset | |
7ba29e2a NC |
1191 | + h->plt.offset); |
1192 | unresolved_reloc = FALSE; | |
1193 | immediate = relocation - (input_section->output_section->vma | |
1194 | + input_section->output_offset | |
1195 | + offset + INST_WORD_SIZE); | |
1196 | bfd_put_16 (input_bfd, (immediate >> 16) & 0xffff, | |
07d6d2b8 | 1197 | contents + offset + endian); |
7ba29e2a | 1198 | bfd_put_16 (input_bfd, immediate & 0xffff, |
07d6d2b8 | 1199 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1200 | } |
1201 | else | |
1202 | { | |
1203 | relocation -= (input_section->output_section->vma | |
1204 | + input_section->output_offset | |
1205 | + offset + INST_WORD_SIZE); | |
1206 | immediate = relocation; | |
1207 | bfd_put_16 (input_bfd, (immediate >> 16) & 0xffff, | |
07d6d2b8 | 1208 | contents + offset + endian); |
7ba29e2a | 1209 | bfd_put_16 (input_bfd, immediate & 0xffff, |
07d6d2b8 | 1210 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a NC |
1211 | } |
1212 | break; | |
1213 | } | |
1214 | ||
69b06cc8 ME |
1215 | case (int) R_MICROBLAZE_TLSGD: |
1216 | tls_type = (TLS_TLS | TLS_GD); | |
1217 | goto dogot; | |
1218 | case (int) R_MICROBLAZE_TLSLD: | |
1219 | tls_type = (TLS_TLS | TLS_LD); | |
1a0670f3 | 1220 | /* Fall through. */ |
69b06cc8 | 1221 | dogot: |
7ba29e2a NC |
1222 | case (int) R_MICROBLAZE_GOT_64: |
1223 | { | |
69b06cc8 ME |
1224 | bfd_vma *offp; |
1225 | bfd_vma off, off2; | |
1226 | unsigned long indx; | |
1227 | bfd_vma static_value; | |
1228 | ||
1229 | bfd_boolean need_relocs = FALSE; | |
ce558b89 | 1230 | if (htab->elf.sgot == NULL) |
7ba29e2a | 1231 | abort (); |
69b06cc8 ME |
1232 | |
1233 | indx = 0; | |
1234 | offp = NULL; | |
1235 | ||
1236 | /* 1. Identify GOT Offset; | |
1237 | 2. Compute Static Values | |
1238 | 3. Process Module Id, Process Offset | |
1239 | 4. Fixup Relocation with GOT offset value. */ | |
1240 | ||
1241 | /* 1. Determine GOT Offset to use : TLS_LD, global, local */ | |
1242 | if (IS_TLS_LD (tls_type)) | |
1243 | offp = &htab->tlsld_got.offset; | |
1244 | else if (h != NULL) | |
1245 | { | |
ce558b89 AM |
1246 | if (htab->elf.sgotplt != NULL |
1247 | && h->got.offset != (bfd_vma) -1) | |
1248 | offp = &h->got.offset; | |
69b06cc8 | 1249 | else |
ce558b89 | 1250 | abort (); |
69b06cc8 ME |
1251 | } |
1252 | else | |
7ba29e2a | 1253 | { |
7ba29e2a NC |
1254 | if (local_got_offsets == NULL) |
1255 | abort (); | |
69b06cc8 ME |
1256 | offp = &local_got_offsets[r_symndx]; |
1257 | } | |
1258 | ||
1259 | if (!offp) | |
1260 | abort (); | |
1261 | ||
1262 | off = (*offp) & ~1; | |
1263 | off2 = off; | |
1264 | ||
1265 | if (IS_TLS_LD(tls_type) || IS_TLS_GD(tls_type)) | |
1266 | off2 = off + 4; | |
1267 | ||
1268 | /* Symbol index to use for relocs */ | |
1269 | if (h != NULL) | |
1270 | { | |
1271 | bfd_boolean dyn = | |
1272 | elf_hash_table (info)->dynamic_sections_created; | |
1273 | ||
0e1862bb L |
1274 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, |
1275 | bfd_link_pic (info), | |
1276 | h) | |
1277 | && (!bfd_link_pic (info) | |
1278 | || !SYMBOL_REFERENCES_LOCAL (info, h))) | |
69b06cc8 ME |
1279 | indx = h->dynindx; |
1280 | } | |
7ba29e2a | 1281 | |
69b06cc8 | 1282 | /* Need to generate relocs ? */ |
0e1862bb | 1283 | if ((bfd_link_pic (info) || indx != 0) |
69b06cc8 | 1284 | && (h == NULL |
112fef40 L |
1285 | || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
1286 | && !resolved_to_zero) | |
69b06cc8 ME |
1287 | || h->root.type != bfd_link_hash_undefweak)) |
1288 | need_relocs = TRUE; | |
1289 | ||
1290 | /* 2. Compute/Emit Static value of r-expression */ | |
1291 | static_value = relocation + addend; | |
1292 | ||
1293 | /* 3. Process module-id and offset */ | |
1294 | if (! ((*offp) & 1) ) | |
1295 | { | |
1296 | bfd_vma got_offset; | |
1297 | ||
ce558b89 AM |
1298 | got_offset = (htab->elf.sgot->output_section->vma |
1299 | + htab->elf.sgot->output_offset | |
69b06cc8 ME |
1300 | + off); |
1301 | ||
1302 | /* Process module-id */ | |
1303 | if (IS_TLS_LD(tls_type)) | |
1304 | { | |
0e1862bb | 1305 | if (! bfd_link_pic (info)) |
ce558b89 AM |
1306 | bfd_put_32 (output_bfd, 1, |
1307 | htab->elf.sgot->contents + off); | |
69b06cc8 | 1308 | else |
ce558b89 AM |
1309 | microblaze_elf_output_dynamic_relocation |
1310 | (output_bfd, | |
1311 | htab->elf.srelgot, | |
1312 | htab->elf.srelgot->reloc_count++, | |
1313 | /* symindex= */ 0, R_MICROBLAZE_TLSDTPMOD32, | |
1314 | got_offset, 0); | |
7ba29e2a | 1315 | } |
69b06cc8 ME |
1316 | else if (IS_TLS_GD(tls_type)) |
1317 | { | |
07d6d2b8 | 1318 | if (! need_relocs) |
ce558b89 AM |
1319 | bfd_put_32 (output_bfd, 1, |
1320 | htab->elf.sgot->contents + off); | |
07d6d2b8 | 1321 | else |
ce558b89 AM |
1322 | microblaze_elf_output_dynamic_relocation |
1323 | (output_bfd, | |
1324 | htab->elf.srelgot, | |
1325 | htab->elf.srelgot->reloc_count++, | |
1326 | /* symindex= */ indx, R_MICROBLAZE_TLSDTPMOD32, | |
1327 | got_offset, indx ? 0 : static_value); | |
69b06cc8 ME |
1328 | } |
1329 | ||
1330 | /* Process Offset */ | |
ce558b89 | 1331 | if (htab->elf.srelgot == NULL) |
69b06cc8 ME |
1332 | abort (); |
1333 | ||
ce558b89 AM |
1334 | got_offset = (htab->elf.sgot->output_section->vma |
1335 | + htab->elf.sgot->output_offset | |
69b06cc8 ME |
1336 | + off2); |
1337 | if (IS_TLS_LD(tls_type)) | |
1338 | { | |
07d6d2b8 AM |
1339 | /* For LD, offset should be 0 */ |
1340 | *offp |= 1; | |
1341 | bfd_put_32 (output_bfd, 0, | |
ce558b89 | 1342 | htab->elf.sgot->contents + off2); |
69b06cc8 ME |
1343 | } |
1344 | else if (IS_TLS_GD(tls_type)) | |
7ba29e2a | 1345 | { |
07d6d2b8 AM |
1346 | *offp |= 1; |
1347 | static_value -= dtprel_base(info); | |
1348 | if (need_relocs) | |
ce558b89 AM |
1349 | microblaze_elf_output_dynamic_relocation |
1350 | (output_bfd, | |
1351 | htab->elf.srelgot, | |
1352 | htab->elf.srelgot->reloc_count++, | |
1353 | /* symindex= */ indx, R_MICROBLAZE_TLSDTPREL32, | |
1354 | got_offset, indx ? 0 : static_value); | |
07d6d2b8 | 1355 | else |
ce558b89 AM |
1356 | bfd_put_32 (output_bfd, static_value, |
1357 | htab->elf.sgot->contents + off2); | |
7ba29e2a NC |
1358 | } |
1359 | else | |
69b06cc8 | 1360 | { |
ce558b89 AM |
1361 | bfd_put_32 (output_bfd, static_value, |
1362 | htab->elf.sgot->contents + off2); | |
69b06cc8 | 1363 | |
ce558b89 AM |
1364 | /* Relocs for dyn symbols generated by |
1365 | finish_dynamic_symbols */ | |
1366 | if (bfd_link_pic (info) && h == NULL) | |
1367 | { | |
1368 | *offp |= 1; | |
1369 | microblaze_elf_output_dynamic_relocation | |
1370 | (output_bfd, | |
1371 | htab->elf.srelgot, | |
1372 | htab->elf.srelgot->reloc_count++, | |
1373 | /* symindex= */ indx, R_MICROBLAZE_REL, | |
1374 | got_offset, static_value); | |
1375 | } | |
69b06cc8 | 1376 | } |
7ba29e2a | 1377 | } |
69b06cc8 ME |
1378 | |
1379 | /* 4. Fixup Relocation with GOT offset value | |
1380 | Compute relative address of GOT entry for applying | |
1381 | the current relocation */ | |
ce558b89 AM |
1382 | relocation = htab->elf.sgot->output_section->vma |
1383 | + htab->elf.sgot->output_offset | |
69b06cc8 | 1384 | + off |
ce558b89 AM |
1385 | - htab->elf.sgotplt->output_section->vma |
1386 | - htab->elf.sgotplt->output_offset; | |
69b06cc8 ME |
1387 | |
1388 | /* Apply Current Relocation */ | |
7ba29e2a | 1389 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, |
07d6d2b8 | 1390 | contents + offset + endian); |
7ba29e2a | 1391 | bfd_put_16 (input_bfd, relocation & 0xffff, |
07d6d2b8 | 1392 | contents + offset + endian + INST_WORD_SIZE); |
69b06cc8 ME |
1393 | |
1394 | unresolved_reloc = FALSE; | |
7ba29e2a NC |
1395 | break; |
1396 | } | |
1397 | ||
1398 | case (int) R_MICROBLAZE_GOTOFF_64: | |
1399 | { | |
1400 | bfd_vma immediate; | |
1401 | unsigned short lo, high; | |
1402 | relocation += addend; | |
ce558b89 AM |
1403 | relocation -= (htab->elf.sgotplt->output_section->vma |
1404 | + htab->elf.sgotplt->output_offset); | |
7ba29e2a NC |
1405 | /* Write this value into correct location. */ |
1406 | immediate = relocation; | |
1407 | lo = immediate & 0x0000ffff; | |
1408 | high = (immediate >> 16) & 0x0000ffff; | |
f23200ad | 1409 | bfd_put_16 (input_bfd, high, contents + offset + endian); |
ce558b89 AM |
1410 | bfd_put_16 (input_bfd, lo, |
1411 | contents + offset + INST_WORD_SIZE + endian); | |
7ba29e2a NC |
1412 | break; |
1413 | } | |
1414 | ||
1415 | case (int) R_MICROBLAZE_GOTOFF_32: | |
1416 | { | |
1417 | relocation += addend; | |
ce558b89 AM |
1418 | relocation -= (htab->elf.sgotplt->output_section->vma |
1419 | + htab->elf.sgotplt->output_offset); | |
7ba29e2a NC |
1420 | /* Write this value into correct location. */ |
1421 | bfd_put_32 (input_bfd, relocation, contents + offset); | |
1422 | break; | |
1423 | } | |
1424 | ||
69b06cc8 ME |
1425 | case (int) R_MICROBLAZE_TLSDTPREL64: |
1426 | relocation += addend; | |
1427 | relocation -= dtprel_base(info); | |
1428 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
1429 | contents + offset + 2); | |
1430 | bfd_put_16 (input_bfd, relocation & 0xffff, | |
1431 | contents + offset + 2 + INST_WORD_SIZE); | |
1432 | break; | |
3f0a5f17 ME |
1433 | case (int) R_MICROBLAZE_TEXTREL_64: |
1434 | case (int) R_MICROBLAZE_TEXTREL_32_LO: | |
7ba29e2a NC |
1435 | case (int) R_MICROBLAZE_64_PCREL : |
1436 | case (int) R_MICROBLAZE_64: | |
1437 | case (int) R_MICROBLAZE_32: | |
1438 | { | |
cf35638d | 1439 | /* r_symndx will be STN_UNDEF (zero) only for relocs against symbols |
7ba29e2a NC |
1440 | from removed linkonce sections, or sections discarded by |
1441 | a linker script. */ | |
cf35638d | 1442 | if (r_symndx == STN_UNDEF || (input_section->flags & SEC_ALLOC) == 0) |
7ba29e2a NC |
1443 | { |
1444 | relocation += addend; | |
1445 | if (r_type == R_MICROBLAZE_32) | |
1446 | bfd_put_32 (input_bfd, relocation, contents + offset); | |
1447 | else | |
1448 | { | |
1449 | if (r_type == R_MICROBLAZE_64_PCREL) | |
1450 | relocation -= (input_section->output_section->vma | |
1451 | + input_section->output_offset | |
1452 | + offset + INST_WORD_SIZE); | |
3f0a5f17 ME |
1453 | else if (r_type == R_MICROBLAZE_TEXTREL_64 |
1454 | || r_type == R_MICROBLAZE_TEXTREL_32_LO) | |
1455 | relocation -= input_section->output_section->vma; | |
1456 | ||
1457 | if (r_type == R_MICROBLAZE_TEXTREL_32_LO) | |
1458 | bfd_put_16 (input_bfd, relocation & 0xffff, | |
1459 | contents + offset + endian); | |
1460 | ||
1461 | else | |
1462 | { | |
1463 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
07d6d2b8 | 1464 | contents + offset + endian); |
3f0a5f17 | 1465 | bfd_put_16 (input_bfd, relocation & 0xffff, |
07d6d2b8 | 1466 | contents + offset + endian + INST_WORD_SIZE); |
7ba29e2a | 1467 | } |
3f0a5f17 | 1468 | } |
7ba29e2a NC |
1469 | break; |
1470 | } | |
1471 | ||
0e1862bb | 1472 | if ((bfd_link_pic (info) |
7ba29e2a | 1473 | && (h == NULL |
112fef40 L |
1474 | || (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
1475 | && !resolved_to_zero) | |
7ba29e2a NC |
1476 | || h->root.type != bfd_link_hash_undefweak) |
1477 | && (!howto->pc_relative | |
1478 | || (h != NULL | |
1479 | && h->dynindx != -1 | |
1480 | && (!info->symbolic | |
1481 | || !h->def_regular)))) | |
0e1862bb | 1482 | || (!bfd_link_pic (info) |
7ba29e2a NC |
1483 | && h != NULL |
1484 | && h->dynindx != -1 | |
1485 | && !h->non_got_ref | |
1486 | && ((h->def_dynamic | |
1487 | && !h->def_regular) | |
1488 | || h->root.type == bfd_link_hash_undefweak | |
1489 | || h->root.type == bfd_link_hash_undefined))) | |
1490 | { | |
1491 | Elf_Internal_Rela outrel; | |
1492 | bfd_byte *loc; | |
c7e2358a | 1493 | bfd_boolean skip; |
7ba29e2a NC |
1494 | |
1495 | /* When generating a shared object, these relocations | |
1496 | are copied into the output file to be resolved at run | |
1497 | time. */ | |
1498 | ||
1499 | BFD_ASSERT (sreloc != NULL); | |
1500 | ||
1501 | skip = FALSE; | |
1502 | ||
1503 | outrel.r_offset = | |
1504 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
1505 | rel->r_offset); | |
1506 | if (outrel.r_offset == (bfd_vma) -1) | |
1507 | skip = TRUE; | |
1508 | else if (outrel.r_offset == (bfd_vma) -2) | |
c7e2358a | 1509 | skip = TRUE; |
7ba29e2a NC |
1510 | outrel.r_offset += (input_section->output_section->vma |
1511 | + input_section->output_offset); | |
1512 | ||
1513 | if (skip) | |
1514 | memset (&outrel, 0, sizeof outrel); | |
1515 | /* h->dynindx may be -1 if the symbol was marked to | |
1516 | become local. */ | |
1517 | else if (h != NULL | |
1518 | && ((! info->symbolic && h->dynindx != -1) | |
1519 | || !h->def_regular)) | |
1520 | { | |
1521 | BFD_ASSERT (h->dynindx != -1); | |
1522 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
1523 | outrel.r_addend = addend; | |
1524 | } | |
1525 | else | |
1526 | { | |
1527 | if (r_type == R_MICROBLAZE_32) | |
1528 | { | |
1529 | outrel.r_info = ELF32_R_INFO (0, R_MICROBLAZE_REL); | |
1530 | outrel.r_addend = relocation + addend; | |
1531 | } | |
1532 | else | |
1533 | { | |
1534 | BFD_FAIL (); | |
4eca0228 | 1535 | _bfd_error_handler |
871b3ab2 | 1536 | (_("%pB: probably compiled without -fPIC?"), |
7ba29e2a NC |
1537 | input_bfd); |
1538 | bfd_set_error (bfd_error_bad_value); | |
1539 | return FALSE; | |
1540 | } | |
1541 | } | |
1542 | ||
1543 | loc = sreloc->contents; | |
1544 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
1545 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
1546 | break; | |
1547 | } | |
1548 | else | |
1549 | { | |
1550 | relocation += addend; | |
1551 | if (r_type == R_MICROBLAZE_32) | |
1552 | bfd_put_32 (input_bfd, relocation, contents + offset); | |
1553 | else | |
1554 | { | |
1555 | if (r_type == R_MICROBLAZE_64_PCREL) | |
1556 | relocation -= (input_section->output_section->vma | |
1557 | + input_section->output_offset | |
1558 | + offset + INST_WORD_SIZE); | |
3f0a5f17 ME |
1559 | else if (r_type == R_MICROBLAZE_TEXTREL_64 |
1560 | || r_type == R_MICROBLAZE_TEXTREL_32_LO) | |
1561 | relocation -= input_section->output_section->vma; | |
1562 | ||
1563 | if (r_type == R_MICROBLAZE_TEXTREL_32_LO) | |
1564 | { | |
1565 | bfd_put_16 (input_bfd, relocation & 0xffff, | |
1566 | contents + offset + endian); | |
1567 | } | |
1568 | else | |
1569 | { | |
1570 | bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff, | |
1571 | contents + offset + endian); | |
1572 | bfd_put_16 (input_bfd, relocation & 0xffff, | |
1573 | contents + offset + endian | |
1574 | + INST_WORD_SIZE); | |
1575 | } | |
1576 | } | |
7ba29e2a NC |
1577 | break; |
1578 | } | |
1579 | } | |
1580 | ||
1581 | default : | |
1582 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
1583 | contents, offset, | |
1584 | relocation, addend); | |
1585 | break; | |
1586 | } | |
1587 | } | |
1588 | ||
1589 | check_reloc: | |
1590 | ||
1591 | if (r != bfd_reloc_ok) | |
1592 | { | |
1593 | /* FIXME: This should be generic enough to go in a utility. */ | |
1594 | const char *name; | |
1595 | ||
1596 | if (h != NULL) | |
1597 | name = h->root.root.string; | |
1598 | else | |
1599 | { | |
1600 | name = (bfd_elf_string_from_elf_section | |
1601 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
1602 | if (name == NULL || *name == '\0') | |
fd361982 | 1603 | name = bfd_section_name (sec); |
7ba29e2a NC |
1604 | } |
1605 | ||
1606 | if (errmsg != NULL) | |
1607 | goto common_error; | |
1608 | ||
1609 | switch (r) | |
1610 | { | |
1611 | case bfd_reloc_overflow: | |
1a72702b AM |
1612 | (*info->callbacks->reloc_overflow) |
1613 | (info, (h ? &h->root : NULL), name, howto->name, | |
1614 | (bfd_vma) 0, input_bfd, input_section, offset); | |
7ba29e2a NC |
1615 | break; |
1616 | ||
1617 | case bfd_reloc_undefined: | |
1a72702b AM |
1618 | (*info->callbacks->undefined_symbol) |
1619 | (info, name, input_bfd, input_section, offset, TRUE); | |
7ba29e2a NC |
1620 | break; |
1621 | ||
1622 | case bfd_reloc_outofrange: | |
1623 | errmsg = _("internal error: out of range error"); | |
1624 | goto common_error; | |
1625 | ||
1626 | case bfd_reloc_notsupported: | |
1627 | errmsg = _("internal error: unsupported relocation error"); | |
1628 | goto common_error; | |
1629 | ||
1630 | case bfd_reloc_dangerous: | |
1631 | errmsg = _("internal error: dangerous error"); | |
1632 | goto common_error; | |
1633 | ||
1634 | default: | |
1635 | errmsg = _("internal error: unknown error"); | |
1636 | /* Fall through. */ | |
1637 | common_error: | |
1a72702b AM |
1638 | (*info->callbacks->warning) (info, errmsg, name, input_bfd, |
1639 | input_section, offset); | |
7ba29e2a NC |
1640 | break; |
1641 | } | |
1642 | } | |
1643 | } | |
1644 | ||
1645 | return ret; | |
1646 | } | |
1647 | \f | |
1648 | /* Calculate fixup value for reference. */ | |
1649 | ||
1650 | static int | |
886e427f | 1651 | calc_fixup (bfd_vma start, bfd_vma size, asection *sec) |
7ba29e2a | 1652 | { |
886e427f | 1653 | bfd_vma end = start + size; |
7ba29e2a NC |
1654 | int i, fixup = 0; |
1655 | ||
1656 | if (sec == NULL || sec->relax == NULL) | |
1657 | return 0; | |
1658 | ||
1659 | /* Look for addr in relax table, total fixup value. */ | |
1660 | for (i = 0; i < sec->relax_count; i++) | |
1661 | { | |
886e427f | 1662 | if (end <= sec->relax[i].addr) |
07d6d2b8 | 1663 | break; |
886e427f | 1664 | if ((end != start) && (start > sec->relax[i].addr)) |
07d6d2b8 | 1665 | continue; |
7ba29e2a NC |
1666 | fixup += sec->relax[i].size; |
1667 | } | |
7ba29e2a NC |
1668 | return fixup; |
1669 | } | |
1670 | ||
f23200ad ME |
1671 | /* Read-modify-write into the bfd, an immediate value into appropriate fields of |
1672 | a 32-bit instruction. */ | |
1673 | static void | |
1674 | microblaze_bfd_write_imm_value_32 (bfd *abfd, bfd_byte *bfd_addr, bfd_vma val) | |
1675 | { | |
1676 | unsigned long instr = bfd_get_32 (abfd, bfd_addr); | |
1677 | instr &= ~0x0000ffff; | |
1678 | instr |= (val & 0x0000ffff); | |
1679 | bfd_put_32 (abfd, instr, bfd_addr); | |
1680 | } | |
1681 | ||
1682 | /* Read-modify-write into the bfd, an immediate value into appropriate fields of | |
1683 | two consecutive 32-bit instructions. */ | |
1684 | static void | |
1685 | microblaze_bfd_write_imm_value_64 (bfd *abfd, bfd_byte *bfd_addr, bfd_vma val) | |
1686 | { | |
1687 | unsigned long instr_hi; | |
1688 | unsigned long instr_lo; | |
1689 | ||
1690 | instr_hi = bfd_get_32 (abfd, bfd_addr); | |
1691 | instr_hi &= ~0x0000ffff; | |
1692 | instr_hi |= ((val >> 16) & 0x0000ffff); | |
1693 | bfd_put_32 (abfd, instr_hi, bfd_addr); | |
1694 | ||
1695 | instr_lo = bfd_get_32 (abfd, bfd_addr + INST_WORD_SIZE); | |
1696 | instr_lo &= ~0x0000ffff; | |
1697 | instr_lo |= (val & 0x0000ffff); | |
1698 | bfd_put_32 (abfd, instr_lo, bfd_addr + INST_WORD_SIZE); | |
1699 | } | |
1700 | ||
7ba29e2a NC |
1701 | static bfd_boolean |
1702 | microblaze_elf_relax_section (bfd *abfd, | |
1703 | asection *sec, | |
1704 | struct bfd_link_info *link_info, | |
1705 | bfd_boolean *again) | |
1706 | { | |
1707 | Elf_Internal_Shdr *symtab_hdr; | |
1708 | Elf_Internal_Rela *internal_relocs; | |
1709 | Elf_Internal_Rela *free_relocs = NULL; | |
1710 | Elf_Internal_Rela *irel, *irelend; | |
1711 | bfd_byte *contents = NULL; | |
1712 | bfd_byte *free_contents = NULL; | |
1713 | int rel_count; | |
1714 | unsigned int shndx; | |
91d6fa6a | 1715 | int i, sym_index; |
7ba29e2a NC |
1716 | asection *o; |
1717 | struct elf_link_hash_entry *sym_hash; | |
1718 | Elf_Internal_Sym *isymbuf, *isymend; | |
1719 | Elf_Internal_Sym *isym; | |
1720 | int symcount; | |
1721 | int offset; | |
1722 | bfd_vma src, dest; | |
1723 | ||
1724 | /* We only do this once per section. We may be able to delete some code | |
1725 | by running multiple passes, but it is not worth it. */ | |
1726 | *again = FALSE; | |
1727 | ||
1728 | /* Only do this for a text section. */ | |
0e1862bb | 1729 | if (bfd_link_relocatable (link_info) |
7ba29e2a | 1730 | || (sec->flags & SEC_RELOC) == 0 |
f23200ad ME |
1731 | || (sec->reloc_count == 0) |
1732 | || (sec->flags & SEC_CODE) == 0) | |
7ba29e2a NC |
1733 | return TRUE; |
1734 | ||
1735 | BFD_ASSERT ((sec->size > 0) || (sec->rawsize > 0)); | |
1736 | ||
1737 | /* If this is the first time we have been called for this section, | |
1738 | initialize the cooked size. */ | |
1739 | if (sec->size == 0) | |
1740 | sec->size = sec->rawsize; | |
1741 | ||
1742 | /* Get symbols for this section. */ | |
1743 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1744 | isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents; | |
1745 | symcount = symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
1746 | if (isymbuf == NULL) | |
1747 | isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr, symcount, | |
07d6d2b8 | 1748 | 0, NULL, NULL, NULL); |
7ba29e2a NC |
1749 | BFD_ASSERT (isymbuf != NULL); |
1750 | ||
91d6fa6a | 1751 | internal_relocs = _bfd_elf_link_read_relocs (abfd, sec, NULL, NULL, link_info->keep_memory); |
7ba29e2a NC |
1752 | if (internal_relocs == NULL) |
1753 | goto error_return; | |
1754 | if (! link_info->keep_memory) | |
1755 | free_relocs = internal_relocs; | |
1756 | ||
1757 | sec->relax = (struct relax_table *) bfd_malloc ((sec->reloc_count + 1) | |
1758 | * sizeof (struct relax_table)); | |
1759 | if (sec->relax == NULL) | |
1760 | goto error_return; | |
1761 | sec->relax_count = 0; | |
1762 | ||
1763 | irelend = internal_relocs + sec->reloc_count; | |
1764 | rel_count = 0; | |
1765 | for (irel = internal_relocs; irel < irelend; irel++, rel_count++) | |
1766 | { | |
1767 | bfd_vma symval; | |
1768 | if ((ELF32_R_TYPE (irel->r_info) != (int) R_MICROBLAZE_64_PCREL) | |
3f0a5f17 ME |
1769 | && (ELF32_R_TYPE (irel->r_info) != (int) R_MICROBLAZE_64) |
1770 | && (ELF32_R_TYPE (irel->r_info) != (int) R_MICROBLAZE_TEXTREL_64)) | |
7ba29e2a NC |
1771 | continue; /* Can't delete this reloc. */ |
1772 | ||
1773 | /* Get the section contents. */ | |
1774 | if (contents == NULL) | |
1775 | { | |
1776 | if (elf_section_data (sec)->this_hdr.contents != NULL) | |
1777 | contents = elf_section_data (sec)->this_hdr.contents; | |
1778 | else | |
1779 | { | |
1780 | contents = (bfd_byte *) bfd_malloc (sec->size); | |
1781 | if (contents == NULL) | |
1782 | goto error_return; | |
1783 | free_contents = contents; | |
1784 | ||
1785 | if (!bfd_get_section_contents (abfd, sec, contents, | |
1786 | (file_ptr) 0, sec->size)) | |
1787 | goto error_return; | |
07d6d2b8 | 1788 | elf_section_data (sec)->this_hdr.contents = contents; |
7ba29e2a NC |
1789 | } |
1790 | } | |
1791 | ||
1792 | /* Get the value of the symbol referred to by the reloc. */ | |
1793 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) | |
1794 | { | |
1795 | /* A local symbol. */ | |
7ba29e2a NC |
1796 | asection *sym_sec; |
1797 | ||
1798 | isym = isymbuf + ELF32_R_SYM (irel->r_info); | |
07d6d2b8 | 1799 | if (isym->st_shndx == SHN_UNDEF) |
7ba29e2a NC |
1800 | sym_sec = bfd_und_section_ptr; |
1801 | else if (isym->st_shndx == SHN_ABS) | |
1802 | sym_sec = bfd_abs_section_ptr; | |
1803 | else if (isym->st_shndx == SHN_COMMON) | |
1804 | sym_sec = bfd_com_section_ptr; | |
1805 | else | |
1806 | sym_sec = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
1807 | ||
1808 | symval = _bfd_elf_rela_local_sym (abfd, isym, &sym_sec, irel); | |
1809 | } | |
1810 | else | |
1811 | { | |
1812 | unsigned long indx; | |
1813 | struct elf_link_hash_entry *h; | |
1814 | ||
1815 | indx = ELF32_R_SYM (irel->r_info) - symtab_hdr->sh_info; | |
1816 | h = elf_sym_hashes (abfd)[indx]; | |
1817 | BFD_ASSERT (h != NULL); | |
1818 | ||
07d6d2b8 | 1819 | if (h->root.type != bfd_link_hash_defined |
7ba29e2a NC |
1820 | && h->root.type != bfd_link_hash_defweak) |
1821 | /* This appears to be a reference to an undefined | |
1822 | symbol. Just ignore it--it will be caught by the | |
1823 | regular reloc processing. */ | |
1824 | continue; | |
1825 | ||
1826 | symval = (h->root.u.def.value | |
1827 | + h->root.u.def.section->output_section->vma | |
1828 | + h->root.u.def.section->output_offset); | |
1829 | } | |
1830 | ||
1831 | /* If this is a PC-relative reloc, subtract the instr offset from | |
07d6d2b8 | 1832 | the symbol value. */ |
7ba29e2a NC |
1833 | if (ELF32_R_TYPE (irel->r_info) == (int) R_MICROBLAZE_64_PCREL) |
1834 | { | |
1835 | symval = symval + irel->r_addend | |
1836 | - (irel->r_offset | |
1837 | + sec->output_section->vma | |
1838 | + sec->output_offset); | |
07d6d2b8 | 1839 | } |
3f0a5f17 ME |
1840 | else if (ELF32_R_TYPE (irel->r_info) == (int) R_MICROBLAZE_TEXTREL_64) |
1841 | { | |
1842 | symval = symval + irel->r_addend - (sec->output_section->vma); | |
1843 | } | |
7ba29e2a NC |
1844 | else |
1845 | symval += irel->r_addend; | |
1846 | ||
1847 | if ((symval & 0xffff8000) == 0 | |
1848 | || (symval & 0xffff8000) == 0xffff8000) | |
1849 | { | |
07d6d2b8 | 1850 | /* We can delete this instruction. */ |
7ba29e2a NC |
1851 | sec->relax[sec->relax_count].addr = irel->r_offset; |
1852 | sec->relax[sec->relax_count].size = INST_WORD_SIZE; | |
1853 | sec->relax_count++; | |
1854 | ||
1855 | /* Rewrite relocation type. */ | |
07d6d2b8 | 1856 | switch ((enum elf_microblaze_reloc_type) ELF32_R_TYPE (irel->r_info)) |
7ba29e2a NC |
1857 | { |
1858 | case R_MICROBLAZE_64_PCREL: | |
1859 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
07d6d2b8 | 1860 | (int) R_MICROBLAZE_32_PCREL_LO); |
7ba29e2a NC |
1861 | break; |
1862 | case R_MICROBLAZE_64: | |
07d6d2b8 AM |
1863 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), |
1864 | (int) R_MICROBLAZE_32_LO); | |
7ba29e2a | 1865 | break; |
3f0a5f17 ME |
1866 | case R_MICROBLAZE_TEXTREL_64: |
1867 | irel->r_info = ELF32_R_INFO (ELF32_R_SYM (irel->r_info), | |
1868 | (int) R_MICROBLAZE_TEXTREL_32_LO); | |
1869 | break; | |
7ba29e2a NC |
1870 | default: |
1871 | /* Cannot happen. */ | |
1872 | BFD_ASSERT (FALSE); | |
07d6d2b8 AM |
1873 | } |
1874 | } | |
7ba29e2a NC |
1875 | } /* Loop through all relocations. */ |
1876 | ||
1877 | /* Loop through the relocs again, and see if anything needs to change. */ | |
1878 | if (sec->relax_count > 0) | |
1879 | { | |
1880 | shndx = _bfd_elf_section_from_bfd_section (abfd, sec); | |
1881 | rel_count = 0; | |
1882 | sec->relax[sec->relax_count].addr = sec->size; | |
1883 | ||
1884 | for (irel = internal_relocs; irel < irelend; irel++, rel_count++) | |
07d6d2b8 | 1885 | { |
7ba29e2a NC |
1886 | bfd_vma nraddr; |
1887 | ||
07d6d2b8 | 1888 | /* Get the new reloc address. */ |
886e427f | 1889 | nraddr = irel->r_offset - calc_fixup (irel->r_offset, 0, sec); |
07d6d2b8 | 1890 | switch ((enum elf_microblaze_reloc_type) ELF32_R_TYPE (irel->r_info)) |
7ba29e2a NC |
1891 | { |
1892 | default: | |
1893 | break; | |
1894 | case R_MICROBLAZE_64_PCREL: | |
1895 | break; | |
3f0a5f17 ME |
1896 | case R_MICROBLAZE_TEXTREL_64: |
1897 | case R_MICROBLAZE_TEXTREL_32_LO: | |
7ba29e2a NC |
1898 | case R_MICROBLAZE_64: |
1899 | case R_MICROBLAZE_32_LO: | |
1900 | /* If this reloc is against a symbol defined in this | |
07d6d2b8 AM |
1901 | section, we must check the addend to see it will put the value in |
1902 | range to be adjusted, and hence must be changed. */ | |
7ba29e2a | 1903 | if (ELF32_R_SYM (irel->r_info) < symtab_hdr->sh_info) |
07d6d2b8 | 1904 | { |
7ba29e2a NC |
1905 | isym = isymbuf + ELF32_R_SYM (irel->r_info); |
1906 | /* Only handle relocs against .text. */ | |
1907 | if (isym->st_shndx == shndx | |
1908 | && ELF32_ST_TYPE (isym->st_info) == STT_SECTION) | |
886e427f | 1909 | irel->r_addend -= calc_fixup (irel->r_addend, 0, sec); |
07d6d2b8 | 1910 | } |
7ba29e2a NC |
1911 | break; |
1912 | case R_MICROBLAZE_NONE: | |
1913 | { | |
07d6d2b8 AM |
1914 | /* This was a PC-relative instruction that was |
1915 | completely resolved. */ | |
1916 | int sfix, efix; | |
1917 | bfd_vma target_address; | |
1918 | target_address = irel->r_addend + irel->r_offset; | |
1919 | sfix = calc_fixup (irel->r_offset, 0, sec); | |
1920 | efix = calc_fixup (target_address, 0, sec); | |
1921 | irel->r_addend -= (efix - sfix); | |
1922 | /* Should use HOWTO. */ | |
1923 | microblaze_bfd_write_imm_value_32 (abfd, contents + irel->r_offset, | |
1924 | irel->r_addend); | |
7ba29e2a NC |
1925 | } |
1926 | break; | |
1927 | case R_MICROBLAZE_64_NONE: | |
1928 | { | |
07d6d2b8 AM |
1929 | /* This was a PC-relative 64-bit instruction that was |
1930 | completely resolved. */ | |
1931 | int sfix, efix; | |
1932 | bfd_vma target_address; | |
7ba29e2a | 1933 | target_address = irel->r_addend + irel->r_offset + INST_WORD_SIZE; |
886e427f ME |
1934 | sfix = calc_fixup (irel->r_offset + INST_WORD_SIZE, 0, sec); |
1935 | efix = calc_fixup (target_address, 0, sec); | |
7ba29e2a | 1936 | irel->r_addend -= (efix - sfix); |
f23200ad | 1937 | microblaze_bfd_write_imm_value_32 (abfd, contents + irel->r_offset |
07d6d2b8 | 1938 | + INST_WORD_SIZE, irel->r_addend); |
7ba29e2a NC |
1939 | } |
1940 | break; | |
1941 | } | |
07d6d2b8 AM |
1942 | irel->r_offset = nraddr; |
1943 | } /* Change all relocs in this section. */ | |
7ba29e2a NC |
1944 | |
1945 | /* Look through all other sections. */ | |
1946 | for (o = abfd->sections; o != NULL; o = o->next) | |
07d6d2b8 AM |
1947 | { |
1948 | Elf_Internal_Rela *irelocs; | |
1949 | Elf_Internal_Rela *irelscan, *irelscanend; | |
1950 | bfd_byte *ocontents; | |
1951 | ||
1952 | if (o == sec | |
1953 | || (o->flags & SEC_RELOC) == 0 | |
1954 | || o->reloc_count == 0) | |
1955 | continue; | |
1956 | ||
1957 | /* We always cache the relocs. Perhaps, if info->keep_memory is | |
1958 | FALSE, we should free them, if we are permitted to. */ | |
1959 | ||
1960 | irelocs = _bfd_elf_link_read_relocs (abfd, o, NULL, NULL, TRUE); | |
1961 | if (irelocs == NULL) | |
1962 | goto error_return; | |
1963 | ||
1964 | ocontents = NULL; | |
1965 | irelscanend = irelocs + o->reloc_count; | |
1966 | for (irelscan = irelocs; irelscan < irelscanend; irelscan++) | |
1967 | { | |
1968 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32) | |
1969 | { | |
1970 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
1971 | ||
1972 | /* Look at the reloc only if the value has been resolved. */ | |
1973 | if (isym->st_shndx == shndx | |
1974 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
1975 | { | |
1976 | if (ocontents == NULL) | |
1977 | { | |
1978 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
1979 | ocontents = elf_section_data (o)->this_hdr.contents; | |
1980 | else | |
1981 | { | |
1982 | /* We always cache the section contents. | |
1983 | Perhaps, if info->keep_memory is FALSE, we | |
1984 | should free them, if we are permitted to. */ | |
1985 | if (o->rawsize == 0) | |
1986 | o->rawsize = o->size; | |
1987 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
1988 | if (ocontents == NULL) | |
1989 | goto error_return; | |
1990 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
1991 | (file_ptr) 0, | |
7ba29e2a | 1992 | o->rawsize)) |
07d6d2b8 AM |
1993 | goto error_return; |
1994 | elf_section_data (o)->this_hdr.contents = ocontents; | |
1995 | } | |
7ba29e2a | 1996 | |
07d6d2b8 | 1997 | } |
886e427f | 1998 | irelscan->r_addend -= calc_fixup (irelscan->r_addend, 0, sec); |
07d6d2b8 | 1999 | } |
7ba29e2a NC |
2000 | else if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32_SYM_OP_SYM) |
2001 | { | |
2002 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
2003 | ||
2004 | /* Look at the reloc only if the value has been resolved. */ | |
2005 | if (ocontents == NULL) | |
2006 | { | |
2007 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
2008 | ocontents = elf_section_data (o)->this_hdr.contents; | |
2009 | else | |
2010 | { | |
2011 | /* We always cache the section contents. | |
2012 | Perhaps, if info->keep_memory is FALSE, we | |
2013 | should free them, if we are permitted to. */ | |
2014 | ||
2015 | if (o->rawsize == 0) | |
2016 | o->rawsize = o->size; | |
2017 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
2018 | if (ocontents == NULL) | |
2019 | goto error_return; | |
2020 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
2021 | (file_ptr) 0, | |
2022 | o->rawsize)) | |
2023 | goto error_return; | |
2024 | elf_section_data (o)->this_hdr.contents = ocontents; | |
2025 | } | |
2026 | } | |
2027 | irelscan->r_addend -= calc_fixup (irel->r_addend | |
2028 | + isym->st_value, | |
886e427f | 2029 | 0, |
7ba29e2a NC |
2030 | sec); |
2031 | } | |
2032 | } | |
2033 | else if ((ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32_PCREL_LO) | |
3f0a5f17 ME |
2034 | || (ELF32_R_TYPE (irelscan->r_info) |
2035 | == (int) R_MICROBLAZE_32_LO) | |
2036 | || (ELF32_R_TYPE (irelscan->r_info) | |
2037 | == (int) R_MICROBLAZE_TEXTREL_32_LO)) | |
7ba29e2a NC |
2038 | { |
2039 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
2040 | ||
2041 | /* Look at the reloc only if the value has been resolved. */ | |
2042 | if (isym->st_shndx == shndx | |
2043 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
2044 | { | |
2045 | bfd_vma immediate; | |
2046 | bfd_vma target_address; | |
2047 | ||
2048 | if (ocontents == NULL) | |
2049 | { | |
2050 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
2051 | ocontents = elf_section_data (o)->this_hdr.contents; | |
2052 | else | |
2053 | { | |
2054 | /* We always cache the section contents. | |
2055 | Perhaps, if info->keep_memory is FALSE, we | |
2056 | should free them, if we are permitted to. */ | |
2057 | if (o->rawsize == 0) | |
2058 | o->rawsize = o->size; | |
2059 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
2060 | if (ocontents == NULL) | |
2061 | goto error_return; | |
2062 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
2063 | (file_ptr) 0, | |
2064 | o->rawsize)) | |
2065 | goto error_return; | |
2066 | elf_section_data (o)->this_hdr.contents = ocontents; | |
2067 | } | |
2068 | } | |
2069 | ||
f23200ad ME |
2070 | unsigned long instr = bfd_get_32 (abfd, ocontents + irelscan->r_offset); |
2071 | immediate = instr & 0x0000ffff; | |
7ba29e2a | 2072 | target_address = immediate; |
886e427f | 2073 | offset = calc_fixup (target_address, 0, sec); |
7ba29e2a NC |
2074 | immediate -= offset; |
2075 | irelscan->r_addend -= offset; | |
07d6d2b8 AM |
2076 | microblaze_bfd_write_imm_value_32 (abfd, ocontents + irelscan->r_offset, |
2077 | irelscan->r_addend); | |
7ba29e2a NC |
2078 | } |
2079 | } | |
2080 | ||
3f0a5f17 ME |
2081 | if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_64 |
2082 | || (ELF32_R_TYPE (irelscan->r_info) | |
2083 | == (int) R_MICROBLAZE_TEXTREL_64)) | |
7ba29e2a NC |
2084 | { |
2085 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
2086 | ||
2087 | /* Look at the reloc only if the value has been resolved. */ | |
2088 | if (isym->st_shndx == shndx | |
2089 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
2090 | { | |
2091 | bfd_vma immediate; | |
2092 | ||
2093 | if (ocontents == NULL) | |
2094 | { | |
2095 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
2096 | ocontents = elf_section_data (o)->this_hdr.contents; | |
2097 | else | |
2098 | { | |
2099 | /* We always cache the section contents. | |
2100 | Perhaps, if info->keep_memory is FALSE, we | |
2101 | should free them, if we are permitted to. */ | |
2102 | ||
2103 | if (o->rawsize == 0) | |
2104 | o->rawsize = o->size; | |
2105 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
2106 | if (ocontents == NULL) | |
2107 | goto error_return; | |
2108 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
2109 | (file_ptr) 0, | |
2110 | o->rawsize)) | |
2111 | goto error_return; | |
2112 | elf_section_data (o)->this_hdr.contents = ocontents; | |
2113 | } | |
2114 | } | |
07d6d2b8 AM |
2115 | unsigned long instr_hi = bfd_get_32 (abfd, ocontents |
2116 | + irelscan->r_offset); | |
2117 | unsigned long instr_lo = bfd_get_32 (abfd, ocontents | |
2118 | + irelscan->r_offset | |
2119 | + INST_WORD_SIZE); | |
2120 | immediate = (instr_hi & 0x0000ffff) << 16; | |
2121 | immediate |= (instr_lo & 0x0000ffff); | |
886e427f | 2122 | offset = calc_fixup (irelscan->r_addend, 0, sec); |
7ba29e2a NC |
2123 | immediate -= offset; |
2124 | irelscan->r_addend -= offset; | |
2125 | } | |
2126 | } | |
2127 | else if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_64_PCREL) | |
2128 | { | |
2129 | isym = isymbuf + ELF32_R_SYM (irelscan->r_info); | |
2130 | ||
2131 | /* Look at the reloc only if the value has been resolved. */ | |
2132 | if (isym->st_shndx == shndx | |
2133 | && (ELF32_ST_TYPE (isym->st_info) == STT_SECTION)) | |
2134 | { | |
2135 | bfd_vma immediate; | |
2136 | bfd_vma target_address; | |
2137 | ||
2138 | if (ocontents == NULL) | |
2139 | { | |
2140 | if (elf_section_data (o)->this_hdr.contents != NULL) | |
2141 | ocontents = elf_section_data (o)->this_hdr.contents; | |
2142 | else | |
2143 | { | |
2144 | /* We always cache the section contents. | |
2145 | Perhaps, if info->keep_memory is FALSE, we | |
2146 | should free them, if we are permitted to. */ | |
2147 | if (o->rawsize == 0) | |
2148 | o->rawsize = o->size; | |
2149 | ocontents = (bfd_byte *) bfd_malloc (o->rawsize); | |
2150 | if (ocontents == NULL) | |
2151 | goto error_return; | |
2152 | if (!bfd_get_section_contents (abfd, o, ocontents, | |
2153 | (file_ptr) 0, | |
2154 | o->rawsize)) | |
2155 | goto error_return; | |
2156 | elf_section_data (o)->this_hdr.contents = ocontents; | |
2157 | } | |
2158 | } | |
07d6d2b8 AM |
2159 | unsigned long instr_hi = bfd_get_32 (abfd, ocontents |
2160 | + irelscan->r_offset); | |
2161 | unsigned long instr_lo = bfd_get_32 (abfd, ocontents | |
2162 | + irelscan->r_offset | |
2163 | + INST_WORD_SIZE); | |
2164 | immediate = (instr_hi & 0x0000ffff) << 16; | |
2165 | immediate |= (instr_lo & 0x0000ffff); | |
7ba29e2a | 2166 | target_address = immediate; |
886e427f | 2167 | offset = calc_fixup (target_address, 0, sec); |
7ba29e2a NC |
2168 | immediate -= offset; |
2169 | irelscan->r_addend -= offset; | |
07d6d2b8 AM |
2170 | microblaze_bfd_write_imm_value_64 (abfd, ocontents |
2171 | + irelscan->r_offset, immediate); | |
7ba29e2a NC |
2172 | } |
2173 | } | |
07d6d2b8 AM |
2174 | } |
2175 | } | |
7ba29e2a NC |
2176 | |
2177 | /* Adjust the local symbols defined in this section. */ | |
2178 | isymend = isymbuf + symtab_hdr->sh_info; | |
2179 | for (isym = isymbuf; isym < isymend; isym++) | |
07d6d2b8 AM |
2180 | { |
2181 | if (isym->st_shndx == shndx) | |
2182 | { | |
2183 | isym->st_value -= calc_fixup (isym->st_value, 0, sec); | |
2184 | if (isym->st_size) | |
2185 | isym->st_size -= calc_fixup (isym->st_value, isym->st_size, sec); | |
2186 | } | |
2187 | } | |
7ba29e2a NC |
2188 | |
2189 | /* Now adjust the global symbols defined in this section. */ | |
2190 | isym = isymbuf + symtab_hdr->sh_info; | |
886e427f ME |
2191 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)) - symtab_hdr->sh_info; |
2192 | for (sym_index = 0; sym_index < symcount; sym_index++) | |
07d6d2b8 AM |
2193 | { |
2194 | sym_hash = elf_sym_hashes (abfd)[sym_index]; | |
2195 | if ((sym_hash->root.type == bfd_link_hash_defined | |
2196 | || sym_hash->root.type == bfd_link_hash_defweak) | |
2197 | && sym_hash->root.u.def.section == sec) | |
2198 | { | |
2199 | sym_hash->root.u.def.value -= calc_fixup (sym_hash->root.u.def.value, | |
2200 | 0, sec); | |
2201 | if (sym_hash->size) | |
2202 | sym_hash->size -= calc_fixup (sym_hash->root.u.def.value, | |
2203 | sym_hash->size, sec); | |
2204 | } | |
2205 | } | |
7ba29e2a NC |
2206 | |
2207 | /* Physically move the code and change the cooked size. */ | |
2208 | dest = sec->relax[0].addr; | |
2209 | for (i = 0; i < sec->relax_count; i++) | |
07d6d2b8 AM |
2210 | { |
2211 | int len; | |
2212 | src = sec->relax[i].addr + sec->relax[i].size; | |
2213 | len = sec->relax[i+1].addr - sec->relax[i].addr - sec->relax[i].size; | |
7ba29e2a | 2214 | |
07d6d2b8 AM |
2215 | memmove (contents + dest, contents + src, len); |
2216 | sec->size -= sec->relax[i].size; | |
2217 | dest += len; | |
2218 | } | |
7ba29e2a NC |
2219 | |
2220 | elf_section_data (sec)->relocs = internal_relocs; | |
2221 | free_relocs = NULL; | |
2222 | ||
2223 | elf_section_data (sec)->this_hdr.contents = contents; | |
2224 | free_contents = NULL; | |
2225 | ||
2226 | symtab_hdr->contents = (bfd_byte *) isymbuf; | |
2227 | } | |
2228 | ||
c9594989 AM |
2229 | free (free_relocs); |
2230 | free_relocs = NULL; | |
7ba29e2a NC |
2231 | |
2232 | if (free_contents != NULL) | |
2233 | { | |
2234 | if (!link_info->keep_memory) | |
2235 | free (free_contents); | |
2236 | else | |
2237 | /* Cache the section contents for elf_link_input_bfd. */ | |
2238 | elf_section_data (sec)->this_hdr.contents = contents; | |
2239 | free_contents = NULL; | |
2240 | } | |
2241 | ||
2242 | if (sec->relax_count == 0) | |
2243 | { | |
f23200ad | 2244 | *again = FALSE; |
7ba29e2a NC |
2245 | free (sec->relax); |
2246 | sec->relax = NULL; | |
2247 | } | |
f23200ad ME |
2248 | else |
2249 | *again = TRUE; | |
7ba29e2a NC |
2250 | return TRUE; |
2251 | ||
2252 | error_return: | |
c9594989 AM |
2253 | free (free_relocs); |
2254 | free (free_contents); | |
2255 | free (sec->relax); | |
2256 | sec->relax = NULL; | |
2257 | sec->relax_count = 0; | |
7ba29e2a NC |
2258 | return FALSE; |
2259 | } | |
2260 | ||
2261 | /* Return the section that should be marked against GC for a given | |
2262 | relocation. */ | |
2263 | ||
2264 | static asection * | |
2265 | microblaze_elf_gc_mark_hook (asection *sec, | |
fb34365b | 2266 | struct bfd_link_info * info, |
07d6d2b8 AM |
2267 | Elf_Internal_Rela * rel, |
2268 | struct elf_link_hash_entry * h, | |
2269 | Elf_Internal_Sym * sym) | |
7ba29e2a NC |
2270 | { |
2271 | if (h != NULL) | |
fb34365b AM |
2272 | switch (ELF32_R_TYPE (rel->r_info)) |
2273 | { | |
2274 | case R_MICROBLAZE_GNU_VTINHERIT: | |
2275 | case R_MICROBLAZE_GNU_VTENTRY: | |
2276 | return NULL; | |
2277 | } | |
2278 | ||
2279 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
7ba29e2a NC |
2280 | } |
2281 | ||
7ba29e2a NC |
2282 | /* PIC support. */ |
2283 | ||
2284 | #define PLT_ENTRY_SIZE 16 | |
2285 | ||
07d6d2b8 AM |
2286 | #define PLT_ENTRY_WORD_0 0xb0000000 /* "imm 0". */ |
2287 | #define PLT_ENTRY_WORD_1 0xe9940000 /* "lwi r12,r20,0" - relocated to lwi r12,r20,func@GOT. */ | |
2288 | #define PLT_ENTRY_WORD_1_NOPIC 0xe9800000 /* "lwi r12,r0,0" - non-PIC object. */ | |
2289 | #define PLT_ENTRY_WORD_2 0x98186000 /* "brad r12". */ | |
2290 | #define PLT_ENTRY_WORD_3 0x80000000 /* "nop". */ | |
7ba29e2a | 2291 | |
69b06cc8 ME |
2292 | static bfd_boolean |
2293 | update_local_sym_info (bfd *abfd, | |
2294 | Elf_Internal_Shdr *symtab_hdr, | |
2295 | unsigned long r_symndx, | |
2296 | unsigned int tls_type) | |
2297 | { | |
2298 | bfd_signed_vma *local_got_refcounts = elf_local_got_refcounts (abfd); | |
2299 | unsigned char *local_got_tls_masks; | |
2300 | ||
2301 | if (local_got_refcounts == NULL) | |
2302 | { | |
2303 | bfd_size_type size = symtab_hdr->sh_info; | |
2304 | ||
2305 | size *= (sizeof (*local_got_refcounts) + sizeof (*local_got_tls_masks)); | |
2306 | local_got_refcounts = bfd_zalloc (abfd, size); | |
2307 | if (local_got_refcounts == NULL) | |
07d6d2b8 | 2308 | return FALSE; |
69b06cc8 ME |
2309 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
2310 | } | |
2311 | ||
2312 | local_got_tls_masks = | |
07d6d2b8 | 2313 | (unsigned char *) (local_got_refcounts + symtab_hdr->sh_info); |
69b06cc8 ME |
2314 | local_got_tls_masks[r_symndx] |= tls_type; |
2315 | local_got_refcounts[r_symndx] += 1; | |
2316 | ||
2317 | return TRUE; | |
2318 | } | |
7ba29e2a NC |
2319 | /* Look through the relocs for a section during the first phase. */ |
2320 | ||
2321 | static bfd_boolean | |
2322 | microblaze_elf_check_relocs (bfd * abfd, | |
2323 | struct bfd_link_info * info, | |
07d6d2b8 | 2324 | asection * sec, |
7ba29e2a NC |
2325 | const Elf_Internal_Rela * relocs) |
2326 | { | |
07d6d2b8 | 2327 | Elf_Internal_Shdr * symtab_hdr; |
7ba29e2a NC |
2328 | struct elf_link_hash_entry ** sym_hashes; |
2329 | struct elf_link_hash_entry ** sym_hashes_end; | |
07d6d2b8 AM |
2330 | const Elf_Internal_Rela * rel; |
2331 | const Elf_Internal_Rela * rel_end; | |
7ba29e2a | 2332 | struct elf32_mb_link_hash_table *htab; |
7ba29e2a NC |
2333 | asection *sreloc = NULL; |
2334 | ||
0e1862bb | 2335 | if (bfd_link_relocatable (info)) |
7ba29e2a NC |
2336 | return TRUE; |
2337 | ||
2338 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2339 | if (htab == NULL) |
2340 | return FALSE; | |
2341 | ||
7ba29e2a NC |
2342 | symtab_hdr = & elf_tdata (abfd)->symtab_hdr; |
2343 | sym_hashes = elf_sym_hashes (abfd); | |
2344 | sym_hashes_end = sym_hashes + symtab_hdr->sh_size / sizeof (Elf32_External_Sym); | |
2345 | if (!elf_bad_symtab (abfd)) | |
2346 | sym_hashes_end -= symtab_hdr->sh_info; | |
2347 | ||
2348 | rel_end = relocs + sec->reloc_count; | |
2349 | ||
2350 | for (rel = relocs; rel < rel_end; rel++) | |
2351 | { | |
2352 | unsigned int r_type; | |
2353 | struct elf_link_hash_entry * h; | |
2354 | unsigned long r_symndx; | |
69b06cc8 | 2355 | unsigned char tls_type = 0; |
7ba29e2a NC |
2356 | |
2357 | r_symndx = ELF32_R_SYM (rel->r_info); | |
2358 | r_type = ELF32_R_TYPE (rel->r_info); | |
2359 | ||
2360 | if (r_symndx < symtab_hdr->sh_info) | |
07d6d2b8 | 2361 | h = NULL; |
7ba29e2a | 2362 | else |
81fbe831 AM |
2363 | { |
2364 | h = sym_hashes [r_symndx - symtab_hdr->sh_info]; | |
b7213666 L |
2365 | while (h->root.type == bfd_link_hash_indirect |
2366 | || h->root.type == bfd_link_hash_warning) | |
2367 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
81fbe831 | 2368 | } |
7ba29e2a NC |
2369 | |
2370 | switch (r_type) | |
07d6d2b8 | 2371 | { |
7ba29e2a NC |
2372 | /* This relocation describes the C++ object vtable hierarchy. |
2373 | Reconstruct it for later use during GC. */ | |
07d6d2b8 AM |
2374 | case R_MICROBLAZE_GNU_VTINHERIT: |
2375 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
2376 | return FALSE; | |
2377 | break; | |
7ba29e2a NC |
2378 | |
2379 | /* This relocation describes which C++ vtable entries are actually | |
2380 | used. Record for later use during GC. */ | |
07d6d2b8 AM |
2381 | case R_MICROBLAZE_GNU_VTENTRY: |
2382 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
2383 | return FALSE; | |
2384 | break; | |
7ba29e2a NC |
2385 | |
2386 | /* This relocation requires .plt entry. */ | |
07d6d2b8 AM |
2387 | case R_MICROBLAZE_PLT_64: |
2388 | if (h != NULL) | |
7ba29e2a NC |
2389 | { |
2390 | h->needs_plt = 1; | |
2391 | h->plt.refcount += 1; | |
2392 | } | |
07d6d2b8 | 2393 | break; |
7ba29e2a NC |
2394 | |
2395 | /* This relocation requires .got entry. */ | |
07d6d2b8 AM |
2396 | case R_MICROBLAZE_TLSGD: |
2397 | tls_type |= (TLS_TLS | TLS_GD); | |
2398 | goto dogottls; | |
2399 | case R_MICROBLAZE_TLSLD: | |
2400 | tls_type |= (TLS_TLS | TLS_LD); | |
1a0670f3 | 2401 | /* Fall through. */ |
07d6d2b8 AM |
2402 | dogottls: |
2403 | sec->has_tls_reloc = 1; | |
1a0670f3 | 2404 | /* Fall through. */ |
07d6d2b8 AM |
2405 | case R_MICROBLAZE_GOT_64: |
2406 | if (htab->elf.sgot == NULL) | |
2407 | { | |
2408 | if (htab->elf.dynobj == NULL) | |
2409 | htab->elf.dynobj = abfd; | |
2410 | if (!_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
2411 | return FALSE; | |
2412 | } | |
2413 | if (h != NULL) | |
7ba29e2a NC |
2414 | { |
2415 | h->got.refcount += 1; | |
69b06cc8 | 2416 | elf32_mb_hash_entry (h)->tls_mask |= tls_type; |
7ba29e2a | 2417 | } |
07d6d2b8 | 2418 | else |
7ba29e2a | 2419 | { |
69b06cc8 ME |
2420 | if (! update_local_sym_info(abfd, symtab_hdr, r_symndx, tls_type) ) |
2421 | return FALSE; | |
7ba29e2a | 2422 | } |
07d6d2b8 | 2423 | break; |
7ba29e2a | 2424 | |
206c9c79 AM |
2425 | case R_MICROBLAZE_GOTOFF_64: |
2426 | case R_MICROBLAZE_GOTOFF_32: | |
2427 | if (htab->elf.sgot == NULL) | |
2428 | { | |
2429 | if (htab->elf.dynobj == NULL) | |
2430 | htab->elf.dynobj = abfd; | |
2431 | if (!_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
2432 | return FALSE; | |
2433 | } | |
2434 | break; | |
2435 | ||
07d6d2b8 AM |
2436 | case R_MICROBLAZE_64: |
2437 | case R_MICROBLAZE_64_PCREL: | |
2438 | case R_MICROBLAZE_32: | |
2439 | { | |
2440 | if (h != NULL && !bfd_link_pic (info)) | |
7ba29e2a NC |
2441 | { |
2442 | /* we may need a copy reloc. */ | |
2443 | h->non_got_ref = 1; | |
2444 | ||
2445 | /* we may also need a .plt entry. */ | |
2446 | h->plt.refcount += 1; | |
2447 | if (ELF32_R_TYPE (rel->r_info) != R_MICROBLAZE_64_PCREL) | |
2448 | h->pointer_equality_needed = 1; | |
2449 | } | |
2450 | ||
2451 | ||
2452 | /* If we are creating a shared library, and this is a reloc | |
2453 | against a global symbol, or a non PC relative reloc | |
2454 | against a local symbol, then we need to copy the reloc | |
2455 | into the shared library. However, if we are linking with | |
2456 | -Bsymbolic, we do not need to copy a reloc against a | |
2457 | global symbol which is defined in an object we are | |
2458 | including in the link (i.e., DEF_REGULAR is set). At | |
2459 | this point we have not seen all the input files, so it is | |
2460 | possible that DEF_REGULAR is not set now but will be set | |
2461 | later (it is never cleared). In case of a weak definition, | |
2462 | DEF_REGULAR may be cleared later by a strong definition in | |
2463 | a shared library. We account for that possibility below by | |
2464 | storing information in the relocs_copied field of the hash | |
2465 | table entry. A similar situation occurs when creating | |
2466 | shared libraries and symbol visibility changes render the | |
2467 | symbol local. | |
2468 | ||
2469 | If on the other hand, we are creating an executable, we | |
2470 | may need to keep relocations for symbols satisfied by a | |
2471 | dynamic library if we manage to avoid copy relocs for the | |
2472 | symbol. */ | |
2473 | ||
07d6d2b8 AM |
2474 | if ((bfd_link_pic (info) |
2475 | && (sec->flags & SEC_ALLOC) != 0 | |
2476 | && (r_type != R_MICROBLAZE_64_PCREL | |
2477 | || (h != NULL | |
7ba29e2a NC |
2478 | && (! info->symbolic |
2479 | || h->root.type == bfd_link_hash_defweak | |
2480 | || !h->def_regular)))) | |
07d6d2b8 AM |
2481 | || (!bfd_link_pic (info) |
2482 | && (sec->flags & SEC_ALLOC) != 0 | |
2483 | && h != NULL | |
2484 | && (h->root.type == bfd_link_hash_defweak | |
2485 | || !h->def_regular))) | |
2486 | { | |
2487 | struct elf_dyn_relocs *p; | |
2488 | struct elf_dyn_relocs **head; | |
2489 | ||
2490 | /* When creating a shared object, we must copy these | |
2491 | relocs into the output file. We create a reloc | |
2492 | section in dynobj and make room for the reloc. */ | |
7ba29e2a NC |
2493 | |
2494 | if (sreloc == NULL) | |
2495 | { | |
7ba29e2a | 2496 | bfd *dynobj; |
7ba29e2a NC |
2497 | |
2498 | if (htab->elf.dynobj == NULL) | |
2499 | htab->elf.dynobj = abfd; | |
2500 | dynobj = htab->elf.dynobj; | |
2501 | ||
69b06cc8 ME |
2502 | sreloc = _bfd_elf_make_dynamic_reloc_section (sec, dynobj, |
2503 | 2, abfd, 1); | |
7ba29e2a | 2504 | if (sreloc == NULL) |
69b06cc8 | 2505 | return FALSE; |
7ba29e2a NC |
2506 | } |
2507 | ||
2508 | /* If this is a global symbol, we count the number of | |
2509 | relocations we need for this symbol. */ | |
2510 | if (h != NULL) | |
190eb1dd | 2511 | head = &h->dyn_relocs; |
7ba29e2a NC |
2512 | else |
2513 | { | |
2514 | /* Track dynamic relocs needed for local syms too. | |
2515 | We really need local syms available to do this | |
2516 | easily. Oh well. */ | |
2517 | ||
2518 | asection *s; | |
2519 | Elf_Internal_Sym *isym; | |
918d9742 | 2520 | void *vpp; |
7ba29e2a | 2521 | |
f1dfbfdb | 2522 | isym = bfd_sym_from_r_symndx (&htab->elf.sym_cache, |
7ba29e2a NC |
2523 | abfd, r_symndx); |
2524 | if (isym == NULL) | |
2525 | return FALSE; | |
2526 | ||
2527 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
2528 | if (s == NULL) | |
2529 | return FALSE; | |
2530 | ||
918d9742 | 2531 | vpp = &elf_section_data (s)->local_dynrel; |
3bf083ed | 2532 | head = (struct elf_dyn_relocs **) vpp; |
7ba29e2a NC |
2533 | } |
2534 | ||
2535 | p = *head; | |
2536 | if (p == NULL || p->sec != sec) | |
2537 | { | |
986f0783 | 2538 | size_t amt = sizeof *p; |
3bf083ed | 2539 | p = ((struct elf_dyn_relocs *) |
7ba29e2a NC |
2540 | bfd_alloc (htab->elf.dynobj, amt)); |
2541 | if (p == NULL) | |
2542 | return FALSE; | |
2543 | p->next = *head; | |
2544 | *head = p; | |
2545 | p->sec = sec; | |
2546 | p->count = 0; | |
2547 | p->pc_count = 0; | |
2548 | } | |
2549 | ||
2550 | p->count += 1; | |
2551 | if (r_type == R_MICROBLAZE_64_PCREL) | |
2552 | p->pc_count += 1; | |
2553 | } | |
07d6d2b8 AM |
2554 | } |
2555 | break; | |
2556 | } | |
7ba29e2a NC |
2557 | } |
2558 | ||
2559 | return TRUE; | |
2560 | } | |
2561 | ||
7ba29e2a NC |
2562 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
2563 | ||
2564 | static void | |
2565 | microblaze_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
2566 | struct elf_link_hash_entry *dir, | |
2567 | struct elf_link_hash_entry *ind) | |
2568 | { | |
2569 | struct elf32_mb_link_hash_entry *edir, *eind; | |
2570 | ||
2571 | edir = (struct elf32_mb_link_hash_entry *) dir; | |
2572 | eind = (struct elf32_mb_link_hash_entry *) ind; | |
2573 | ||
69b06cc8 ME |
2574 | edir->tls_mask |= eind->tls_mask; |
2575 | ||
7ba29e2a NC |
2576 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); |
2577 | } | |
2578 | ||
2579 | static bfd_boolean | |
2580 | microblaze_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
2581 | struct elf_link_hash_entry *h) | |
2582 | { | |
2583 | struct elf32_mb_link_hash_table *htab; | |
5474d94f | 2584 | asection *s, *srel; |
7ba29e2a | 2585 | unsigned int power_of_two; |
7ba29e2a NC |
2586 | |
2587 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2588 | if (htab == NULL) |
2589 | return FALSE; | |
7ba29e2a NC |
2590 | |
2591 | /* If this is a function, put it in the procedure linkage table. We | |
2592 | will fill in the contents of the procedure linkage table later, | |
2593 | when we know the address of the .got section. */ | |
2594 | if (h->type == STT_FUNC | |
2595 | || h->needs_plt) | |
2596 | { | |
2597 | if (h->plt.refcount <= 0 | |
2598 | || SYMBOL_CALLS_LOCAL (info, h) | |
2599 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
2600 | && h->root.type == bfd_link_hash_undefweak)) | |
2601 | { | |
2602 | /* This case can occur if we saw a PLT reloc in an input | |
2603 | file, but the symbol was never referred to by a dynamic | |
2604 | object, or if all references were garbage collected. In | |
2605 | such a case, we don't actually need to build a procedure | |
2606 | linkage table, and we can just do a PC32 reloc instead. */ | |
2607 | h->plt.offset = (bfd_vma) -1; | |
2608 | h->needs_plt = 0; | |
2609 | } | |
2610 | ||
2611 | return TRUE; | |
2612 | } | |
2613 | else | |
2614 | /* It's possible that we incorrectly decided a .plt reloc was | |
2615 | needed for an R_MICROBLAZE_64_PCREL reloc to a non-function sym in | |
2616 | check_relocs. We can't decide accurately between function and | |
2617 | non-function syms in check-relocs; Objects loaded later in | |
2618 | the link may change h->type. So fix it now. */ | |
2619 | h->plt.offset = (bfd_vma) -1; | |
2620 | ||
2621 | /* If this is a weak symbol, and there is a real definition, the | |
2622 | processor independent code will have arranged for us to see the | |
2623 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 2624 | if (h->is_weakalias) |
7ba29e2a | 2625 | { |
60d67dc8 AM |
2626 | struct elf_link_hash_entry *def = weakdef (h); |
2627 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
2628 | h->root.u.def.section = def->root.u.def.section; | |
2629 | h->root.u.def.value = def->root.u.def.value; | |
7ba29e2a NC |
2630 | return TRUE; |
2631 | } | |
2632 | ||
2633 | /* This is a reference to a symbol defined by a dynamic object which | |
2634 | is not a function. */ | |
2635 | ||
2636 | /* If we are creating a shared library, we must presume that the | |
2637 | only references to the symbol are via the global offset table. | |
2638 | For such cases we need not do anything here; the relocations will | |
2639 | be handled correctly by relocate_section. */ | |
0e1862bb | 2640 | if (bfd_link_pic (info)) |
7ba29e2a NC |
2641 | return TRUE; |
2642 | ||
2643 | /* If there are no references to this symbol that do not use the | |
2644 | GOT, we don't need to generate a copy reloc. */ | |
2645 | if (!h->non_got_ref) | |
2646 | return TRUE; | |
2647 | ||
2648 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
2649 | if (info->nocopyreloc) | |
2650 | { | |
2651 | h->non_got_ref = 0; | |
2652 | return TRUE; | |
2653 | } | |
2654 | ||
3bf083ed | 2655 | /* If we don't find any dynamic relocs in read-only sections, then |
7ba29e2a | 2656 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
5dbc8b37 | 2657 | if (!_bfd_elf_readonly_dynrelocs (h)) |
7ba29e2a NC |
2658 | { |
2659 | h->non_got_ref = 0; | |
2660 | return TRUE; | |
2661 | } | |
2662 | ||
2663 | /* We must allocate the symbol in our .dynbss section, which will | |
2664 | become part of the .bss section of the executable. There will be | |
2665 | an entry for this symbol in the .dynsym section. The dynamic | |
2666 | object will contain position independent code, so all references | |
2667 | from the dynamic object to this symbol will go through the global | |
2668 | offset table. The dynamic linker will use the .dynsym entry to | |
2669 | determine the address it must put in the global offset table, so | |
2670 | both the dynamic object and the regular object will refer to the | |
2671 | same memory location for the variable. */ | |
2672 | ||
2673 | /* We must generate a R_MICROBLAZE_COPY reloc to tell the dynamic linker | |
2674 | to copy the initial value out of the dynamic object and into the | |
2675 | runtime process image. */ | |
5474d94f AM |
2676 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
2677 | { | |
2678 | s = htab->elf.sdynrelro; | |
2679 | srel = htab->elf.sreldynrelro; | |
2680 | } | |
2681 | else | |
2682 | { | |
2683 | s = htab->elf.sdynbss; | |
2684 | srel = htab->elf.srelbss; | |
2685 | } | |
7ba29e2a NC |
2686 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
2687 | { | |
5474d94f | 2688 | srel->size += sizeof (Elf32_External_Rela); |
7ba29e2a NC |
2689 | h->needs_copy = 1; |
2690 | } | |
2691 | ||
2692 | /* We need to figure out the alignment required for this symbol. I | |
2693 | have no idea how ELF linkers handle this. */ | |
2694 | power_of_two = bfd_log2 (h->size); | |
2695 | if (power_of_two > 3) | |
2696 | power_of_two = 3; | |
2697 | ||
7ba29e2a | 2698 | /* Apply the required alignment. */ |
5474d94f AM |
2699 | s->size = BFD_ALIGN (s->size, (bfd_size_type) (1 << power_of_two)); |
2700 | if (power_of_two > s->alignment_power) | |
7ba29e2a | 2701 | { |
fd361982 | 2702 | if (!bfd_set_section_alignment (s, power_of_two)) |
7ba29e2a NC |
2703 | return FALSE; |
2704 | } | |
2705 | ||
2706 | /* Define the symbol as being at this point in the section. */ | |
5474d94f AM |
2707 | h->root.u.def.section = s; |
2708 | h->root.u.def.value = s->size; | |
7ba29e2a NC |
2709 | |
2710 | /* Increment the section size to make room for the symbol. */ | |
5474d94f | 2711 | s->size += h->size; |
7ba29e2a NC |
2712 | return TRUE; |
2713 | } | |
2714 | ||
2715 | /* Allocate space in .plt, .got and associated reloc sections for | |
2716 | dynamic relocs. */ | |
2717 | ||
2718 | static bfd_boolean | |
2719 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * dat) | |
2720 | { | |
2721 | struct bfd_link_info *info; | |
2722 | struct elf32_mb_link_hash_table *htab; | |
2723 | struct elf32_mb_link_hash_entry *eh; | |
3bf083ed | 2724 | struct elf_dyn_relocs *p; |
7ba29e2a NC |
2725 | |
2726 | if (h->root.type == bfd_link_hash_indirect) | |
2727 | return TRUE; | |
2728 | ||
7ba29e2a NC |
2729 | info = (struct bfd_link_info *) dat; |
2730 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2731 | if (htab == NULL) |
2732 | return FALSE; | |
7ba29e2a NC |
2733 | |
2734 | if (htab->elf.dynamic_sections_created | |
2735 | && h->plt.refcount > 0) | |
2736 | { | |
2737 | /* Make sure this symbol is output as a dynamic symbol. | |
2738 | Undefined weak syms won't yet be marked as dynamic. */ | |
2739 | if (h->dynindx == -1 | |
07d6d2b8 AM |
2740 | && !h->forced_local) |
2741 | { | |
2742 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2743 | return FALSE; | |
2744 | } | |
7ba29e2a | 2745 | |
0e1862bb | 2746 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
07d6d2b8 AM |
2747 | { |
2748 | asection *s = htab->elf.splt; | |
2749 | ||
2750 | /* The first entry in .plt is reserved. */ | |
2751 | if (s->size == 0) | |
2752 | s->size = PLT_ENTRY_SIZE; | |
2753 | ||
2754 | h->plt.offset = s->size; | |
2755 | ||
2756 | /* If this symbol is not defined in a regular file, and we are | |
2757 | not generating a shared library, then set the symbol to this | |
2758 | location in the .plt. This is required to make function | |
2759 | pointers compare as equal between the normal executable and | |
2760 | the shared library. */ | |
2761 | if (! bfd_link_pic (info) | |
2762 | && !h->def_regular) | |
2763 | { | |
2764 | h->root.u.def.section = s; | |
2765 | h->root.u.def.value = h->plt.offset; | |
2766 | } | |
2767 | ||
2768 | /* Make room for this entry. */ | |
2769 | s->size += PLT_ENTRY_SIZE; | |
2770 | ||
2771 | /* We also need to make an entry in the .got.plt section, which | |
2772 | will be placed in the .got section by the linker script. */ | |
ce558b89 | 2773 | htab->elf.sgotplt->size += 4; |
7ba29e2a | 2774 | |
07d6d2b8 AM |
2775 | /* We also need to make an entry in the .rel.plt section. */ |
2776 | htab->elf.srelplt->size += sizeof (Elf32_External_Rela); | |
2777 | } | |
7ba29e2a | 2778 | else |
07d6d2b8 AM |
2779 | { |
2780 | h->plt.offset = (bfd_vma) -1; | |
2781 | h->needs_plt = 0; | |
2782 | } | |
7ba29e2a NC |
2783 | } |
2784 | else | |
2785 | { | |
2786 | h->plt.offset = (bfd_vma) -1; | |
2787 | h->needs_plt = 0; | |
2788 | } | |
2789 | ||
69b06cc8 | 2790 | eh = (struct elf32_mb_link_hash_entry *) h; |
7ba29e2a NC |
2791 | if (h->got.refcount > 0) |
2792 | { | |
69b06cc8 | 2793 | unsigned int need; |
7ba29e2a NC |
2794 | asection *s; |
2795 | ||
2796 | /* Make sure this symbol is output as a dynamic symbol. | |
07d6d2b8 | 2797 | Undefined weak syms won't yet be marked as dynamic. */ |
7ba29e2a | 2798 | if (h->dynindx == -1 |
07d6d2b8 AM |
2799 | && !h->forced_local) |
2800 | { | |
2801 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2802 | return FALSE; | |
2803 | } | |
7ba29e2a | 2804 | |
69b06cc8 ME |
2805 | need = 0; |
2806 | if ((eh->tls_mask & TLS_TLS) != 0) | |
07d6d2b8 AM |
2807 | { |
2808 | /* Handle TLS Symbol */ | |
2809 | if ((eh->tls_mask & TLS_LD) != 0) | |
2810 | { | |
2811 | if (!eh->elf.def_dynamic) | |
2812 | /* We'll just use htab->tlsld_got.offset. This should | |
2813 | always be the case. It's a little odd if we have | |
2814 | a local dynamic reloc against a non-local symbol. */ | |
2815 | htab->tlsld_got.refcount += 1; | |
2816 | else | |
2817 | need += 8; | |
2818 | } | |
2819 | if ((eh->tls_mask & TLS_GD) != 0) | |
2820 | need += 8; | |
2821 | } | |
69b06cc8 | 2822 | else |
07d6d2b8 AM |
2823 | { |
2824 | /* Regular (non-TLS) symbol */ | |
2825 | need += 4; | |
2826 | } | |
69b06cc8 | 2827 | if (need == 0) |
07d6d2b8 AM |
2828 | { |
2829 | h->got.offset = (bfd_vma) -1; | |
2830 | } | |
69b06cc8 | 2831 | else |
07d6d2b8 AM |
2832 | { |
2833 | s = htab->elf.sgot; | |
2834 | h->got.offset = s->size; | |
2835 | s->size += need; | |
2836 | htab->elf.srelgot->size += need * (sizeof (Elf32_External_Rela) / 4); | |
2837 | } | |
7ba29e2a NC |
2838 | } |
2839 | else | |
2840 | h->got.offset = (bfd_vma) -1; | |
2841 | ||
190eb1dd | 2842 | if (h->dyn_relocs == NULL) |
7ba29e2a NC |
2843 | return TRUE; |
2844 | ||
2845 | /* In the shared -Bsymbolic case, discard space allocated for | |
2846 | dynamic pc-relative relocs against symbols which turn out to be | |
2847 | defined in regular objects. For the normal shared case, discard | |
2848 | space for pc-relative relocs that have become local due to symbol | |
2849 | visibility changes. */ | |
2850 | ||
0e1862bb | 2851 | if (bfd_link_pic (info)) |
7ba29e2a NC |
2852 | { |
2853 | if (h->def_regular | |
2854 | && (h->forced_local | |
2855 | || info->symbolic)) | |
2856 | { | |
3bf083ed | 2857 | struct elf_dyn_relocs **pp; |
7ba29e2a | 2858 | |
190eb1dd | 2859 | for (pp = &h->dyn_relocs; (p = *pp) != NULL; ) |
7ba29e2a NC |
2860 | { |
2861 | p->count -= p->pc_count; | |
2862 | p->pc_count = 0; | |
2863 | if (p->count == 0) | |
2864 | *pp = p->next; | |
2865 | else | |
2866 | pp = &p->next; | |
2867 | } | |
2868 | } | |
112fef40 | 2869 | else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
190eb1dd | 2870 | h->dyn_relocs = NULL; |
7ba29e2a NC |
2871 | } |
2872 | else | |
2873 | { | |
2874 | /* For the non-shared case, discard space for relocs against | |
2875 | symbols which turn out to need copy relocs or are not | |
2876 | dynamic. */ | |
2877 | ||
2878 | if (!h->non_got_ref | |
2879 | && ((h->def_dynamic | |
2880 | && !h->def_regular) | |
2881 | || (htab->elf.dynamic_sections_created | |
2882 | && (h->root.type == bfd_link_hash_undefweak | |
2883 | || h->root.type == bfd_link_hash_undefined)))) | |
2884 | { | |
2885 | /* Make sure this symbol is output as a dynamic symbol. | |
2886 | Undefined weak syms won't yet be marked as dynamic. */ | |
2887 | if (h->dynindx == -1 | |
2888 | && !h->forced_local) | |
2889 | { | |
2890 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
2891 | return FALSE; | |
2892 | } | |
2893 | ||
2894 | /* If that succeeded, we know we'll be keeping all the | |
2895 | relocs. */ | |
2896 | if (h->dynindx != -1) | |
2897 | goto keep; | |
2898 | } | |
2899 | ||
190eb1dd | 2900 | h->dyn_relocs = NULL; |
7ba29e2a NC |
2901 | |
2902 | keep: ; | |
2903 | } | |
2904 | ||
2905 | /* Finally, allocate space. */ | |
190eb1dd | 2906 | for (p = h->dyn_relocs; p != NULL; p = p->next) |
7ba29e2a NC |
2907 | { |
2908 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
2909 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
2910 | } | |
2911 | ||
2912 | return TRUE; | |
2913 | } | |
2914 | ||
2915 | /* Set the sizes of the dynamic sections. */ | |
2916 | ||
2917 | static bfd_boolean | |
2918 | microblaze_elf_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, | |
2919 | struct bfd_link_info *info) | |
2920 | { | |
2921 | struct elf32_mb_link_hash_table *htab; | |
2922 | bfd *dynobj; | |
2923 | asection *s; | |
2924 | bfd *ibfd; | |
2925 | ||
2926 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
2927 | if (htab == NULL) |
2928 | return FALSE; | |
2929 | ||
7ba29e2a NC |
2930 | dynobj = htab->elf.dynobj; |
2931 | BFD_ASSERT (dynobj != NULL); | |
2932 | ||
2933 | /* Set up .got offsets for local syms, and space for local dynamic | |
2934 | relocs. */ | |
c72f2fb2 | 2935 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
7ba29e2a NC |
2936 | { |
2937 | bfd_signed_vma *local_got; | |
2938 | bfd_signed_vma *end_local_got; | |
2939 | bfd_size_type locsymcount; | |
2940 | Elf_Internal_Shdr *symtab_hdr; | |
69b06cc8 | 2941 | unsigned char *lgot_masks; |
7ba29e2a NC |
2942 | asection *srel; |
2943 | ||
2944 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
07d6d2b8 | 2945 | continue; |
7ba29e2a NC |
2946 | |
2947 | for (s = ibfd->sections; s != NULL; s = s->next) | |
2948 | { | |
3bf083ed | 2949 | struct elf_dyn_relocs *p; |
7ba29e2a | 2950 | |
3bf083ed | 2951 | for (p = ((struct elf_dyn_relocs *) |
7ba29e2a NC |
2952 | elf_section_data (s)->local_dynrel); |
2953 | p != NULL; | |
2954 | p = p->next) | |
2955 | { | |
2956 | if (!bfd_is_abs_section (p->sec) | |
2957 | && bfd_is_abs_section (p->sec->output_section)) | |
2958 | { | |
2959 | /* Input section has been discarded, either because | |
2960 | it is a copy of a linkonce section or due to | |
2961 | linker script /DISCARD/, so we'll be discarding | |
2962 | the relocs too. */ | |
2963 | } | |
2964 | else if (p->count != 0) | |
2965 | { | |
2966 | srel = elf_section_data (p->sec)->sreloc; | |
2967 | srel->size += p->count * sizeof (Elf32_External_Rela); | |
2968 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
2969 | info->flags |= DF_TEXTREL; | |
2970 | } | |
2971 | } | |
2972 | } | |
2973 | ||
2974 | local_got = elf_local_got_refcounts (ibfd); | |
2975 | if (!local_got) | |
07d6d2b8 | 2976 | continue; |
7ba29e2a NC |
2977 | |
2978 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2979 | locsymcount = symtab_hdr->sh_info; | |
2980 | end_local_got = local_got + locsymcount; | |
69b06cc8 | 2981 | lgot_masks = (unsigned char *) end_local_got; |
ce558b89 AM |
2982 | s = htab->elf.sgot; |
2983 | srel = htab->elf.srelgot; | |
7ba29e2a | 2984 | |
69b06cc8 ME |
2985 | for (; local_got < end_local_got; ++local_got, ++lgot_masks) |
2986 | { | |
2987 | if (*local_got > 0) | |
2988 | { | |
2989 | unsigned int need = 0; | |
2990 | if ((*lgot_masks & TLS_TLS) != 0) | |
2991 | { | |
2992 | if ((*lgot_masks & TLS_GD) != 0) | |
2993 | need += 8; | |
2994 | if ((*lgot_masks & TLS_LD) != 0) | |
2995 | htab->tlsld_got.refcount += 1; | |
2996 | } | |
2997 | else | |
2998 | need += 4; | |
2999 | ||
3000 | if (need == 0) | |
3001 | { | |
3002 | *local_got = (bfd_vma) -1; | |
3003 | } | |
3004 | else | |
3005 | { | |
3006 | *local_got = s->size; | |
3007 | s->size += need; | |
0e1862bb | 3008 | if (bfd_link_pic (info)) |
69b06cc8 ME |
3009 | srel->size += need * (sizeof (Elf32_External_Rela) / 4); |
3010 | } | |
07d6d2b8 AM |
3011 | } |
3012 | else | |
3013 | *local_got = (bfd_vma) -1; | |
3014 | } | |
7ba29e2a NC |
3015 | } |
3016 | ||
3017 | /* Allocate global sym .plt and .got entries, and space for global | |
3018 | sym dynamic relocs. */ | |
3019 | elf_link_hash_traverse (elf_hash_table (info), allocate_dynrelocs, info); | |
3020 | ||
69b06cc8 ME |
3021 | if (htab->tlsld_got.refcount > 0) |
3022 | { | |
ce558b89 AM |
3023 | htab->tlsld_got.offset = htab->elf.sgot->size; |
3024 | htab->elf.sgot->size += 8; | |
0e1862bb | 3025 | if (bfd_link_pic (info)) |
07d6d2b8 | 3026 | htab->elf.srelgot->size += sizeof (Elf32_External_Rela); |
69b06cc8 ME |
3027 | } |
3028 | else | |
3029 | htab->tlsld_got.offset = (bfd_vma) -1; | |
3030 | ||
7ba29e2a NC |
3031 | if (elf_hash_table (info)->dynamic_sections_created) |
3032 | { | |
3033 | /* Make space for the trailing nop in .plt. */ | |
ce558b89 | 3034 | if (htab->elf.splt->size > 0) |
07d6d2b8 | 3035 | htab->elf.splt->size += 4; |
7ba29e2a NC |
3036 | } |
3037 | ||
3038 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
3039 | determined the sizes of the various dynamic sections. Allocate | |
3040 | memory for them. */ | |
3041 | for (s = dynobj->sections; s != NULL; s = s->next) | |
3042 | { | |
3043 | const char *name; | |
3044 | bfd_boolean strip = FALSE; | |
3045 | ||
3046 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
07d6d2b8 | 3047 | continue; |
7ba29e2a NC |
3048 | |
3049 | /* It's OK to base decisions on the section name, because none | |
07d6d2b8 | 3050 | of the dynobj section names depend upon the input files. */ |
fd361982 | 3051 | name = bfd_section_name (s); |
7ba29e2a NC |
3052 | |
3053 | if (strncmp (name, ".rela", 5) == 0) | |
07d6d2b8 AM |
3054 | { |
3055 | if (s->size == 0) | |
3056 | { | |
3057 | /* If we don't need this section, strip it from the | |
3058 | output file. This is to handle .rela.bss and | |
3059 | .rela.plt. We must create it in | |
3060 | create_dynamic_sections, because it must be created | |
3061 | before the linker maps input sections to output | |
3062 | sections. The linker does that before | |
3063 | adjust_dynamic_symbol is called, and it is that | |
3064 | function which decides whether anything needs to go | |
3065 | into these sections. */ | |
3066 | strip = TRUE; | |
3067 | } | |
3068 | else | |
3069 | { | |
3070 | /* We use the reloc_count field as a counter if we need | |
3071 | to copy relocs into the output file. */ | |
3072 | s->reloc_count = 0; | |
3073 | } | |
3074 | } | |
ce558b89 AM |
3075 | else if (s != htab->elf.splt |
3076 | && s != htab->elf.sgot | |
5474d94f AM |
3077 | && s != htab->elf.sgotplt |
3078 | && s != htab->elf.sdynbss | |
3079 | && s != htab->elf.sdynrelro) | |
07d6d2b8 AM |
3080 | { |
3081 | /* It's not one of our sections, so don't allocate space. */ | |
3082 | continue; | |
3083 | } | |
7ba29e2a NC |
3084 | |
3085 | if (strip) | |
07d6d2b8 AM |
3086 | { |
3087 | s->flags |= SEC_EXCLUDE; | |
3088 | continue; | |
3089 | } | |
7ba29e2a NC |
3090 | |
3091 | /* Allocate memory for the section contents. */ | |
3092 | /* FIXME: This should be a call to bfd_alloc not bfd_zalloc. | |
07d6d2b8 AM |
3093 | Unused entries should be reclaimed before the section's contents |
3094 | are written out, but at the moment this does not happen. Thus in | |
3095 | order to prevent writing out garbage, we initialise the section's | |
3096 | contents to zero. */ | |
7ba29e2a NC |
3097 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size); |
3098 | if (s->contents == NULL && s->size != 0) | |
07d6d2b8 | 3099 | return FALSE; |
7ba29e2a NC |
3100 | } |
3101 | ||
3084d7a2 L |
3102 | /* ??? Force DF_BIND_NOW? */ |
3103 | info->flags |= DF_BIND_NOW; | |
3104 | return _bfd_elf_add_dynamic_tags (output_bfd, info, TRUE); | |
7ba29e2a NC |
3105 | } |
3106 | ||
3107 | /* Finish up dynamic symbol handling. We set the contents of various | |
3108 | dynamic sections here. */ | |
3109 | ||
3110 | static bfd_boolean | |
3111 | microblaze_elf_finish_dynamic_symbol (bfd *output_bfd, | |
3112 | struct bfd_link_info *info, | |
3113 | struct elf_link_hash_entry *h, | |
3114 | Elf_Internal_Sym *sym) | |
3115 | { | |
7ba29e2a | 3116 | struct elf32_mb_link_hash_table *htab; |
69b06cc8 | 3117 | struct elf32_mb_link_hash_entry *eh = elf32_mb_hash_entry(h); |
7ba29e2a NC |
3118 | |
3119 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
3120 | if (htab == NULL) |
3121 | return FALSE; | |
3122 | ||
7ba29e2a NC |
3123 | if (h->plt.offset != (bfd_vma) -1) |
3124 | { | |
3125 | asection *splt; | |
3126 | asection *srela; | |
3127 | asection *sgotplt; | |
3128 | Elf_Internal_Rela rela; | |
3129 | bfd_byte *loc; | |
3130 | bfd_vma plt_index; | |
3131 | bfd_vma got_offset; | |
3132 | bfd_vma got_addr; | |
3133 | ||
3134 | /* This symbol has an entry in the procedure linkage table. Set | |
07d6d2b8 | 3135 | it up. */ |
7ba29e2a NC |
3136 | BFD_ASSERT (h->dynindx != -1); |
3137 | ||
ce558b89 AM |
3138 | splt = htab->elf.splt; |
3139 | srela = htab->elf.srelplt; | |
3140 | sgotplt = htab->elf.sgotplt; | |
7ba29e2a NC |
3141 | BFD_ASSERT (splt != NULL && srela != NULL && sgotplt != NULL); |
3142 | ||
3143 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; /* first entry reserved. */ | |
3144 | got_offset = (plt_index + 3) * 4; /* 3 reserved ??? */ | |
3145 | got_addr = got_offset; | |
3146 | ||
3147 | /* For non-PIC objects we need absolute address of the GOT entry. */ | |
0e1862bb | 3148 | if (!bfd_link_pic (info)) |
07d6d2b8 | 3149 | got_addr += sgotplt->output_section->vma + sgotplt->output_offset; |
7ba29e2a NC |
3150 | |
3151 | /* Fill in the entry in the procedure linkage table. */ | |
3152 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD_0 + ((got_addr >> 16) & 0xffff), | |
07d6d2b8 | 3153 | splt->contents + h->plt.offset); |
0e1862bb | 3154 | if (bfd_link_pic (info)) |
07d6d2b8 AM |
3155 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD_1 + (got_addr & 0xffff), |
3156 | splt->contents + h->plt.offset + 4); | |
7ba29e2a | 3157 | else |
07d6d2b8 AM |
3158 | bfd_put_32 (output_bfd, PLT_ENTRY_WORD_1_NOPIC + (got_addr & 0xffff), |
3159 | splt->contents + h->plt.offset + 4); | |
7ba29e2a | 3160 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD_2, |
07d6d2b8 | 3161 | splt->contents + h->plt.offset + 8); |
7ba29e2a | 3162 | bfd_put_32 (output_bfd, (bfd_vma) PLT_ENTRY_WORD_3, |
07d6d2b8 | 3163 | splt->contents + h->plt.offset + 12); |
7ba29e2a NC |
3164 | |
3165 | /* Any additions to the .got section??? */ | |
3166 | /* bfd_put_32 (output_bfd, | |
3167 | splt->output_section->vma + splt->output_offset + h->plt.offset + 4, | |
3168 | sgotplt->contents + got_offset); */ | |
3169 | ||
3170 | /* Fill in the entry in the .rela.plt section. */ | |
3171 | rela.r_offset = (sgotplt->output_section->vma | |
07d6d2b8 AM |
3172 | + sgotplt->output_offset |
3173 | + got_offset); | |
7ba29e2a NC |
3174 | rela.r_info = ELF32_R_INFO (h->dynindx, R_MICROBLAZE_JUMP_SLOT); |
3175 | rela.r_addend = 0; | |
3176 | loc = srela->contents; | |
3177 | loc += plt_index * sizeof (Elf32_External_Rela); | |
3178 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
3179 | ||
3180 | if (!h->def_regular) | |
07d6d2b8 AM |
3181 | { |
3182 | /* Mark the symbol as undefined, rather than as defined in | |
3183 | the .plt section. Zero the value. */ | |
3184 | sym->st_shndx = SHN_UNDEF; | |
3185 | sym->st_value = 0; | |
3186 | } | |
7ba29e2a NC |
3187 | } |
3188 | ||
69b06cc8 ME |
3189 | /* h->got.refcount to be checked ? */ |
3190 | if (h->got.offset != (bfd_vma) -1 && | |
3191 | ! ((h->got.offset & 1) || | |
07d6d2b8 | 3192 | IS_TLS_LD(eh->tls_mask) || IS_TLS_GD(eh->tls_mask))) |
7ba29e2a NC |
3193 | { |
3194 | asection *sgot; | |
3195 | asection *srela; | |
69b06cc8 | 3196 | bfd_vma offset; |
7ba29e2a NC |
3197 | |
3198 | /* This symbol has an entry in the global offset table. Set it | |
07d6d2b8 | 3199 | up. */ |
7ba29e2a | 3200 | |
ce558b89 AM |
3201 | sgot = htab->elf.sgot; |
3202 | srela = htab->elf.srelgot; | |
7ba29e2a NC |
3203 | BFD_ASSERT (sgot != NULL && srela != NULL); |
3204 | ||
69b06cc8 | 3205 | offset = (sgot->output_section->vma + sgot->output_offset |
47993b4a | 3206 | + (h->got.offset &~ (bfd_vma) 1)); |
7ba29e2a NC |
3207 | |
3208 | /* If this is a -Bsymbolic link, and the symbol is defined | |
07d6d2b8 AM |
3209 | locally, we just want to emit a RELATIVE reloc. Likewise if |
3210 | the symbol was forced to be local because of a version file. | |
3211 | The entry in the global offset table will already have been | |
3212 | initialized in the relocate_section function. */ | |
0e1862bb | 3213 | if (bfd_link_pic (info) |
07d6d2b8 | 3214 | && ((info->symbolic && h->def_regular) |
47993b4a | 3215 | || h->dynindx == -1)) |
07d6d2b8 AM |
3216 | { |
3217 | asection *sec = h->root.u.def.section; | |
bd757ca7 NC |
3218 | bfd_vma value; |
3219 | ||
3220 | value = h->root.u.def.value; | |
3221 | if (sec->output_section != NULL) | |
3222 | /* PR 21180: If the output section is NULL, then the symbol is no | |
3223 | longer needed, and in theory the GOT entry is redundant. But | |
3224 | it is too late to change our minds now... */ | |
3225 | value += sec->output_section->vma + sec->output_offset; | |
3226 | ||
07d6d2b8 AM |
3227 | microblaze_elf_output_dynamic_relocation (output_bfd, |
3228 | srela, srela->reloc_count++, | |
3229 | /* symindex= */ 0, | |
3230 | R_MICROBLAZE_REL, offset, | |
3231 | value); | |
3232 | } | |
7ba29e2a | 3233 | else |
07d6d2b8 AM |
3234 | { |
3235 | microblaze_elf_output_dynamic_relocation (output_bfd, | |
3236 | srela, srela->reloc_count++, | |
3237 | h->dynindx, | |
3238 | R_MICROBLAZE_GLOB_DAT, | |
3239 | offset, 0); | |
3240 | } | |
7ba29e2a NC |
3241 | |
3242 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
07d6d2b8 | 3243 | sgot->contents + (h->got.offset &~ (bfd_vma) 1)); |
7ba29e2a NC |
3244 | } |
3245 | ||
3246 | if (h->needs_copy) | |
3247 | { | |
3248 | asection *s; | |
3249 | Elf_Internal_Rela rela; | |
3250 | bfd_byte *loc; | |
3251 | ||
3252 | /* This symbols needs a copy reloc. Set it up. */ | |
3253 | ||
3254 | BFD_ASSERT (h->dynindx != -1); | |
3255 | ||
7ba29e2a | 3256 | rela.r_offset = (h->root.u.def.value |
07d6d2b8 AM |
3257 | + h->root.u.def.section->output_section->vma |
3258 | + h->root.u.def.section->output_offset); | |
7ba29e2a NC |
3259 | rela.r_info = ELF32_R_INFO (h->dynindx, R_MICROBLAZE_COPY); |
3260 | rela.r_addend = 0; | |
afbf7e8e | 3261 | if (h->root.u.def.section == htab->elf.sdynrelro) |
5474d94f AM |
3262 | s = htab->elf.sreldynrelro; |
3263 | else | |
3264 | s = htab->elf.srelbss; | |
7ba29e2a NC |
3265 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
3266 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
3267 | } | |
3268 | ||
3269 | /* Mark some specially defined symbols as absolute. */ | |
9637f6ef L |
3270 | if (h == htab->elf.hdynamic |
3271 | || h == htab->elf.hgot | |
3272 | || h == htab->elf.hplt) | |
7ba29e2a NC |
3273 | sym->st_shndx = SHN_ABS; |
3274 | ||
3275 | return TRUE; | |
3276 | } | |
3277 | ||
3278 | ||
3279 | /* Finish up the dynamic sections. */ | |
3280 | ||
3281 | static bfd_boolean | |
3282 | microblaze_elf_finish_dynamic_sections (bfd *output_bfd, | |
3283 | struct bfd_link_info *info) | |
3284 | { | |
3285 | bfd *dynobj; | |
3286 | asection *sdyn, *sgot; | |
3287 | struct elf32_mb_link_hash_table *htab; | |
3288 | ||
3289 | htab = elf32_mb_hash_table (info); | |
4dfe6ac6 NC |
3290 | if (htab == NULL) |
3291 | return FALSE; | |
3292 | ||
7ba29e2a NC |
3293 | dynobj = htab->elf.dynobj; |
3294 | ||
3d4d4302 | 3295 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
7ba29e2a NC |
3296 | |
3297 | if (htab->elf.dynamic_sections_created) | |
3298 | { | |
3299 | asection *splt; | |
3300 | Elf32_External_Dyn *dyncon, *dynconend; | |
3301 | ||
7ba29e2a NC |
3302 | dyncon = (Elf32_External_Dyn *) sdyn->contents; |
3303 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
3304 | for (; dyncon < dynconend; dyncon++) | |
07d6d2b8 AM |
3305 | { |
3306 | Elf_Internal_Dyn dyn; | |
64f52338 | 3307 | asection *s; |
07d6d2b8 | 3308 | bfd_boolean size; |
7ba29e2a | 3309 | |
07d6d2b8 | 3310 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); |
7ba29e2a | 3311 | |
07d6d2b8 AM |
3312 | switch (dyn.d_tag) |
3313 | { | |
64f52338 AM |
3314 | case DT_PLTGOT: |
3315 | s = htab->elf.sgotplt; | |
3316 | size = FALSE; | |
3317 | break; | |
7ba29e2a | 3318 | |
64f52338 AM |
3319 | case DT_PLTRELSZ: |
3320 | s = htab->elf.srelplt; | |
3321 | size = TRUE; | |
3322 | break; | |
7ba29e2a | 3323 | |
64f52338 AM |
3324 | case DT_JMPREL: |
3325 | s = htab->elf.srelplt; | |
3326 | size = FALSE; | |
3327 | break; | |
3328 | ||
3329 | default: | |
3330 | continue; | |
07d6d2b8 | 3331 | } |
64f52338 AM |
3332 | |
3333 | if (s == NULL) | |
3334 | dyn.d_un.d_val = 0; | |
3335 | else | |
3336 | { | |
3337 | if (!size) | |
3338 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
3339 | else | |
3340 | dyn.d_un.d_val = s->size; | |
3341 | } | |
3342 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
07d6d2b8 | 3343 | } |
7ba29e2a | 3344 | |
64f52338 AM |
3345 | splt = htab->elf.splt; |
3346 | BFD_ASSERT (splt != NULL && sdyn != NULL); | |
3347 | ||
7ba29e2a NC |
3348 | /* Clear the first entry in the procedure linkage table, |
3349 | and put a nop in the last four bytes. */ | |
3350 | if (splt->size > 0) | |
07d6d2b8 AM |
3351 | { |
3352 | memset (splt->contents, 0, PLT_ENTRY_SIZE); | |
3353 | bfd_put_32 (output_bfd, (bfd_vma) 0x80000000 /* nop. */, | |
3354 | splt->contents + splt->size - 4); | |
7ba29e2a | 3355 | |
94667ab1 AM |
3356 | if (splt->output_section != bfd_abs_section_ptr) |
3357 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = 4; | |
3358 | } | |
7ba29e2a NC |
3359 | } |
3360 | ||
3361 | /* Set the first entry in the global offset table to the address of | |
3362 | the dynamic section. */ | |
ce558b89 | 3363 | sgot = htab->elf.sgotplt; |
7ba29e2a NC |
3364 | if (sgot && sgot->size > 0) |
3365 | { | |
3366 | if (sdyn == NULL) | |
07d6d2b8 | 3367 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); |
7ba29e2a | 3368 | else |
07d6d2b8 AM |
3369 | bfd_put_32 (output_bfd, |
3370 | sdyn->output_section->vma + sdyn->output_offset, | |
3371 | sgot->contents); | |
7ba29e2a NC |
3372 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; |
3373 | } | |
3374 | ||
ce558b89 AM |
3375 | if (htab->elf.sgot && htab->elf.sgot->size > 0) |
3376 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 4; | |
7ba29e2a NC |
3377 | |
3378 | return TRUE; | |
3379 | } | |
3380 | ||
3381 | /* Hook called by the linker routine which adds symbols from an object | |
3382 | file. We use it to put .comm items in .sbss, and not .bss. */ | |
3383 | ||
3384 | static bfd_boolean | |
3385 | microblaze_elf_add_symbol_hook (bfd *abfd, | |
07d6d2b8 AM |
3386 | struct bfd_link_info *info, |
3387 | Elf_Internal_Sym *sym, | |
3388 | const char **namep ATTRIBUTE_UNUSED, | |
3389 | flagword *flagsp ATTRIBUTE_UNUSED, | |
3390 | asection **secp, | |
3391 | bfd_vma *valp) | |
7ba29e2a NC |
3392 | { |
3393 | if (sym->st_shndx == SHN_COMMON | |
0e1862bb | 3394 | && !bfd_link_relocatable (info) |
7ba29e2a NC |
3395 | && sym->st_size <= elf_gp_size (abfd)) |
3396 | { | |
3397 | /* Common symbols less than or equal to -G nn bytes are automatically | |
3398 | put into .sbss. */ | |
3d4d4302 | 3399 | *secp = bfd_make_section_old_way (abfd, ".sbss"); |
7ba29e2a | 3400 | if (*secp == NULL |
10885e24 | 3401 | || !bfd_set_section_flags (*secp, SEC_IS_COMMON | SEC_SMALL_DATA)) |
07d6d2b8 | 3402 | return FALSE; |
7ba29e2a NC |
3403 | |
3404 | *valp = sym->st_size; | |
3405 | } | |
3406 | ||
3407 | return TRUE; | |
3408 | } | |
3409 | ||
6d00b590 | 3410 | #define TARGET_LITTLE_SYM microblaze_elf32_le_vec |
f23200ad | 3411 | #define TARGET_LITTLE_NAME "elf32-microblazeel" |
7ba29e2a | 3412 | |
07d6d2b8 | 3413 | #define TARGET_BIG_SYM microblaze_elf32_vec |
7ba29e2a NC |
3414 | #define TARGET_BIG_NAME "elf32-microblaze" |
3415 | ||
3416 | #define ELF_ARCH bfd_arch_microblaze | |
ae95ffa6 | 3417 | #define ELF_TARGET_ID MICROBLAZE_ELF_DATA |
7ba29e2a NC |
3418 | #define ELF_MACHINE_CODE EM_MICROBLAZE |
3419 | #define ELF_MACHINE_ALT1 EM_MICROBLAZE_OLD | |
69b06cc8 | 3420 | #define ELF_MAXPAGESIZE 0x1000 |
7ba29e2a NC |
3421 | #define elf_info_to_howto microblaze_elf_info_to_howto |
3422 | #define elf_info_to_howto_rel NULL | |
3423 | ||
3424 | #define bfd_elf32_bfd_reloc_type_lookup microblaze_elf_reloc_type_lookup | |
07d6d2b8 | 3425 | #define bfd_elf32_bfd_is_local_label_name microblaze_elf_is_local_label_name |
7ba29e2a | 3426 | #define elf_backend_relocate_section microblaze_elf_relocate_section |
07d6d2b8 AM |
3427 | #define bfd_elf32_bfd_relax_section microblaze_elf_relax_section |
3428 | #define bfd_elf32_bfd_merge_private_bfd_data _bfd_generic_verify_endian_match | |
7ba29e2a NC |
3429 | #define bfd_elf32_bfd_reloc_name_lookup microblaze_elf_reloc_name_lookup |
3430 | ||
3431 | #define elf_backend_gc_mark_hook microblaze_elf_gc_mark_hook | |
07d6d2b8 AM |
3432 | #define elf_backend_check_relocs microblaze_elf_check_relocs |
3433 | #define elf_backend_copy_indirect_symbol microblaze_elf_copy_indirect_symbol | |
3434 | #define bfd_elf32_bfd_link_hash_table_create microblaze_elf_link_hash_table_create | |
7ba29e2a | 3435 | #define elf_backend_can_gc_sections 1 |
07d6d2b8 AM |
3436 | #define elf_backend_can_refcount 1 |
3437 | #define elf_backend_want_got_plt 1 | |
3438 | #define elf_backend_plt_readonly 1 | |
3439 | #define elf_backend_got_header_size 12 | |
5474d94f | 3440 | #define elf_backend_want_dynrelro 1 |
07d6d2b8 | 3441 | #define elf_backend_rela_normal 1 |
64f52338 | 3442 | #define elf_backend_dtrel_excludes_plt 1 |
7ba29e2a | 3443 | |
07d6d2b8 AM |
3444 | #define elf_backend_adjust_dynamic_symbol microblaze_elf_adjust_dynamic_symbol |
3445 | #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections | |
3446 | #define elf_backend_finish_dynamic_sections microblaze_elf_finish_dynamic_sections | |
3447 | #define elf_backend_finish_dynamic_symbol microblaze_elf_finish_dynamic_symbol | |
3448 | #define elf_backend_size_dynamic_sections microblaze_elf_size_dynamic_sections | |
7ba29e2a NC |
3449 | #define elf_backend_add_symbol_hook microblaze_elf_add_symbol_hook |
3450 | ||
3451 | #include "elf32-target.h" |