]>
Commit | Line | Data |
---|---|---|
84e94c90 | 1 | /* Lattice Mico32-specific support for 32-bit ELF |
219d1afa | 2 | Copyright (C) 2008-2018 Free Software Foundation, Inc. |
84e94c90 NC |
3 | Contributed by Jon Beniston <jon@beniston.com> |
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 Free Software | |
19 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
20 | MA 02110-1301, USA. */ | |
21 | ||
84e94c90 | 22 | #include "sysdep.h" |
691bf19c | 23 | #include "bfd.h" |
84e94c90 NC |
24 | #include "libbfd.h" |
25 | #include "elf-bfd.h" | |
26 | #include "elf/lm32.h" | |
27 | ||
28 | #define DEFAULT_STACK_SIZE 0x20000 | |
29 | ||
30 | #define PLT_ENTRY_SIZE 20 | |
31 | ||
32 | #define PLT0_ENTRY_WORD0 0 | |
33 | #define PLT0_ENTRY_WORD1 0 | |
34 | #define PLT0_ENTRY_WORD2 0 | |
35 | #define PLT0_ENTRY_WORD3 0 | |
36 | #define PLT0_ENTRY_WORD4 0 | |
37 | ||
38 | #define PLT0_PIC_ENTRY_WORD0 0 | |
39 | #define PLT0_PIC_ENTRY_WORD1 0 | |
40 | #define PLT0_PIC_ENTRY_WORD2 0 | |
41 | #define PLT0_PIC_ENTRY_WORD3 0 | |
42 | #define PLT0_PIC_ENTRY_WORD4 0 | |
43 | ||
44 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/libc.so.1" | |
45 | ||
6d00b590 | 46 | extern const bfd_target lm32_elf32_fdpic_vec; |
84e94c90 | 47 | |
6d00b590 | 48 | #define IS_FDPIC(bfd) ((bfd)->xvec == &lm32_elf32_fdpic_vec) |
84e94c90 NC |
49 | |
50 | static bfd_reloc_status_type lm32_elf_gprel_reloc | |
51 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
52 | ||
84e94c90 NC |
53 | /* lm32 ELF linker hash entry. */ |
54 | ||
55 | struct elf_lm32_link_hash_entry | |
56 | { | |
57 | struct elf_link_hash_entry root; | |
58 | ||
59 | /* Track dynamic relocs copied for this symbol. */ | |
3bf083ed | 60 | struct elf_dyn_relocs *dyn_relocs; |
84e94c90 NC |
61 | }; |
62 | ||
63 | /* lm32 ELF linker hash table. */ | |
64 | ||
65 | struct elf_lm32_link_hash_table | |
66 | { | |
67 | struct elf_link_hash_table root; | |
68 | ||
69 | /* Short-cuts to get to dynamic linker sections. */ | |
84e94c90 | 70 | asection *sfixup32; |
84e94c90 NC |
71 | asection *sdynbss; |
72 | asection *srelbss; | |
73 | ||
74 | int relocs32; | |
75 | }; | |
76 | ||
77 | /* Get the lm32 ELF linker hash table from a link_info structure. */ | |
78 | ||
79 | #define lm32_elf_hash_table(p) \ | |
4dfe6ac6 NC |
80 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
81 | == LM32_ELF_DATA ? ((struct elf_lm32_link_hash_table *) ((p)->hash)) : NULL) | |
84e94c90 NC |
82 | |
83 | #define lm32fdpic_got_section(info) \ | |
ce558b89 | 84 | (lm32_elf_hash_table (info)->root.sgot) |
84e94c90 | 85 | #define lm32fdpic_gotrel_section(info) \ |
ce558b89 | 86 | (lm32_elf_hash_table (info)->root.srelgot) |
84e94c90 NC |
87 | #define lm32fdpic_fixup32_section(info) \ |
88 | (lm32_elf_hash_table (info)->sfixup32) | |
89 | ||
90 | struct weak_symbol_list | |
91 | { | |
92 | const char *name; | |
93 | struct weak_symbol_list *next; | |
94 | }; | |
95 | ||
96 | /* Create an entry in an lm32 ELF linker hash table. */ | |
97 | ||
98 | static struct bfd_hash_entry * | |
99 | lm32_elf_link_hash_newfunc (struct bfd_hash_entry *entry, | |
100 | struct bfd_hash_table *table, | |
101 | const char *string) | |
102 | { | |
103 | struct elf_lm32_link_hash_entry *ret = | |
104 | (struct elf_lm32_link_hash_entry *) entry; | |
105 | ||
106 | /* Allocate the structure if it has not already been allocated by a | |
107 | subclass. */ | |
108 | if (ret == NULL) | |
109 | ret = bfd_hash_allocate (table, | |
110 | sizeof (struct elf_lm32_link_hash_entry)); | |
111 | if (ret == NULL) | |
112 | return NULL; | |
113 | ||
114 | /* Call the allocation method of the superclass. */ | |
115 | ret = ((struct elf_lm32_link_hash_entry *) | |
07d6d2b8 AM |
116 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, |
117 | table, string)); | |
84e94c90 NC |
118 | if (ret != NULL) |
119 | { | |
120 | struct elf_lm32_link_hash_entry *eh; | |
121 | ||
122 | eh = (struct elf_lm32_link_hash_entry *) ret; | |
123 | eh->dyn_relocs = NULL; | |
124 | } | |
125 | ||
126 | return (struct bfd_hash_entry *) ret; | |
127 | } | |
128 | ||
129 | /* Create an lm32 ELF linker hash table. */ | |
130 | ||
131 | static struct bfd_link_hash_table * | |
132 | lm32_elf_link_hash_table_create (bfd *abfd) | |
133 | { | |
134 | struct elf_lm32_link_hash_table *ret; | |
135 | bfd_size_type amt = sizeof (struct elf_lm32_link_hash_table); | |
136 | ||
7bf52ea2 | 137 | ret = bfd_zmalloc (amt); |
84e94c90 NC |
138 | if (ret == NULL) |
139 | return NULL; | |
140 | ||
141 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, | |
142 | lm32_elf_link_hash_newfunc, | |
4dfe6ac6 NC |
143 | sizeof (struct elf_lm32_link_hash_entry), |
144 | LM32_ELF_DATA)) | |
84e94c90 NC |
145 | { |
146 | free (ret); | |
147 | return NULL; | |
148 | } | |
149 | ||
84e94c90 NC |
150 | return &ret->root.root; |
151 | } | |
152 | ||
153 | /* Add a fixup to the ROFIXUP section. */ | |
154 | ||
155 | static bfd_vma | |
156 | _lm32fdpic_add_rofixup (bfd *output_bfd, asection *rofixup, bfd_vma relocation) | |
157 | { | |
158 | bfd_vma fixup_offset; | |
159 | ||
160 | if (rofixup->flags & SEC_EXCLUDE) | |
161 | return -1; | |
162 | ||
163 | fixup_offset = rofixup->reloc_count * 4; | |
164 | if (rofixup->contents) | |
165 | { | |
166 | BFD_ASSERT (fixup_offset < rofixup->size); | |
167 | if (fixup_offset < rofixup->size) | |
168 | bfd_put_32 (output_bfd, relocation, rofixup->contents + fixup_offset); | |
169 | } | |
170 | rofixup->reloc_count++; | |
171 | ||
172 | return fixup_offset; | |
173 | } | |
174 | ||
84e94c90 NC |
175 | /* Create .rofixup sections in DYNOBJ, and set up |
176 | shortcuts to them in our hash table. */ | |
177 | ||
178 | static bfd_boolean | |
179 | create_rofixup_section (bfd *dynobj, struct bfd_link_info *info) | |
180 | { | |
181 | struct elf_lm32_link_hash_table *htab; | |
182 | htab = lm32_elf_hash_table (info); | |
183 | ||
4dfe6ac6 NC |
184 | if (htab == NULL) |
185 | return FALSE; | |
186 | ||
187 | /* Fixup section for R_LM32_32 relocs. */ | |
3d4d4302 AM |
188 | lm32fdpic_fixup32_section (info) |
189 | = bfd_make_section_anyway_with_flags (dynobj, | |
190 | ".rofixup", | |
191 | (SEC_ALLOC | |
192 | | SEC_LOAD | |
193 | | SEC_HAS_CONTENTS | |
194 | | SEC_IN_MEMORY | |
195 | | SEC_LINKER_CREATED | |
196 | | SEC_READONLY)); | |
84e94c90 | 197 | if (lm32fdpic_fixup32_section (info) == NULL |
3d4d4302 AM |
198 | || ! bfd_set_section_alignment (dynobj, |
199 | lm32fdpic_fixup32_section (info), 2)) | |
84e94c90 NC |
200 | return FALSE; |
201 | ||
202 | return TRUE; | |
203 | } | |
204 | ||
205 | static reloc_howto_type lm32_elf_howto_table [] = | |
206 | { | |
207 | /* This reloc does nothing. */ | |
07d6d2b8 AM |
208 | HOWTO (R_LM32_NONE, /* type */ |
209 | 0, /* rightshift */ | |
210 | 3, /* 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 | bfd_elf_generic_reloc, /* special_function */ | |
216 | "R_LM32_NONE", /* name */ | |
217 | FALSE, /* partial_inplace */ | |
218 | 0, /* src_mask */ | |
219 | 0, /* dst_mask */ | |
220 | FALSE), /* pcrel_offset */ | |
84e94c90 NC |
221 | |
222 | /* An 8 bit absolute relocation. */ | |
07d6d2b8 AM |
223 | HOWTO (R_LM32_8, /* type */ |
224 | 0, /* rightshift */ | |
225 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
226 | 8, /* bitsize */ | |
227 | FALSE, /* pc_relative */ | |
228 | 0, /* bitpos */ | |
229 | complain_overflow_bitfield,/* complain_on_overflow */ | |
230 | bfd_elf_generic_reloc, /* special_function */ | |
231 | "R_LM32_8", /* name */ | |
232 | FALSE, /* partial_inplace */ | |
233 | 0, /* src_mask */ | |
234 | 0xff, /* dst_mask */ | |
235 | FALSE), /* pcrel_offset */ | |
84e94c90 NC |
236 | |
237 | /* A 16 bit absolute relocation. */ | |
07d6d2b8 AM |
238 | HOWTO (R_LM32_16, /* type */ |
239 | 0, /* rightshift */ | |
240 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
241 | 16, /* bitsize */ | |
242 | FALSE, /* pc_relative */ | |
243 | 0, /* bitpos */ | |
244 | complain_overflow_bitfield,/* complain_on_overflow */ | |
245 | bfd_elf_generic_reloc, /* special_function */ | |
246 | "R_LM32_16", /* name */ | |
247 | FALSE, /* partial_inplace */ | |
248 | 0, /* src_mask */ | |
249 | 0xffff, /* dst_mask */ | |
250 | FALSE), /* pcrel_offset */ | |
84e94c90 NC |
251 | |
252 | /* A 32 bit absolute relocation. */ | |
07d6d2b8 AM |
253 | HOWTO (R_LM32_32, /* type */ |
254 | 0, /* rightshift */ | |
255 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
256 | 32, /* bitsize */ | |
257 | FALSE, /* pc_relative */ | |
258 | 0, /* bitpos */ | |
259 | complain_overflow_bitfield,/* complain_on_overflow */ | |
260 | bfd_elf_generic_reloc, /* special_function */ | |
261 | "R_LM32_32", /* name */ | |
262 | FALSE, /* partial_inplace */ | |
263 | 0, /* src_mask */ | |
264 | 0xffffffff, /* dst_mask */ | |
265 | FALSE), /* pcrel_offset */ | |
266 | ||
267 | HOWTO (R_LM32_HI16, /* type */ | |
268 | 16, /* rightshift */ | |
269 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
270 | 16, /* bitsize */ | |
271 | FALSE, /* pc_relative */ | |
272 | 0, /* bitpos */ | |
273 | complain_overflow_bitfield,/* complain_on_overflow */ | |
274 | bfd_elf_generic_reloc, /* special_function */ | |
275 | "R_LM32_HI16", /* name */ | |
276 | FALSE, /* partial_inplace */ | |
277 | 0, /* src_mask */ | |
278 | 0xffff, /* dst_mask */ | |
279 | FALSE), /* pcrel_offset */ | |
280 | ||
281 | HOWTO (R_LM32_LO16, /* type */ | |
282 | 0, /* rightshift */ | |
283 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
284 | 16, /* bitsize */ | |
285 | FALSE, /* pc_relative */ | |
286 | 0, /* bitpos */ | |
287 | complain_overflow_dont, /* complain_on_overflow */ | |
288 | bfd_elf_generic_reloc, /* special_function */ | |
289 | "R_LM32_LO16", /* name */ | |
290 | FALSE, /* partial_inplace */ | |
291 | 0, /* src_mask */ | |
292 | 0xffff, /* dst_mask */ | |
293 | FALSE), /* pcrel_offset */ | |
294 | ||
295 | HOWTO (R_LM32_GPREL16, /* type */ | |
296 | 0, /* rightshift */ | |
297 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
298 | 16, /* bitsize */ | |
299 | FALSE, /* pc_relative */ | |
300 | 0, /* bitpos */ | |
301 | complain_overflow_dont, /* complain_on_overflow */ | |
302 | lm32_elf_gprel_reloc, /* special_function */ | |
303 | "R_LM32_GPREL16", /* name */ | |
304 | FALSE, /* partial_inplace */ | |
305 | 0, /* src_mask */ | |
306 | 0xffff, /* dst_mask */ | |
307 | FALSE), /* pcrel_offset */ | |
308 | ||
309 | HOWTO (R_LM32_CALL, /* type */ | |
310 | 2, /* rightshift */ | |
311 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
312 | 26, /* bitsize */ | |
313 | TRUE, /* pc_relative */ | |
314 | 0, /* bitpos */ | |
315 | complain_overflow_signed, /* complain_on_overflow */ | |
316 | bfd_elf_generic_reloc, /* special_function */ | |
317 | "R_LM32_CALL", /* name */ | |
318 | FALSE, /* partial_inplace */ | |
319 | 0, /* src_mask */ | |
320 | 0x3ffffff, /* dst_mask */ | |
321 | TRUE), /* pcrel_offset */ | |
322 | ||
323 | HOWTO (R_LM32_BRANCH, /* type */ | |
324 | 2, /* rightshift */ | |
325 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
326 | 16, /* bitsize */ | |
327 | TRUE, /* pc_relative */ | |
328 | 0, /* bitpos */ | |
329 | complain_overflow_signed, /* complain_on_overflow */ | |
330 | bfd_elf_generic_reloc, /* special_function */ | |
331 | "R_LM32_BRANCH", /* name */ | |
332 | FALSE, /* partial_inplace */ | |
333 | 0, /* src_mask */ | |
334 | 0xffff, /* dst_mask */ | |
335 | TRUE), /* pcrel_offset */ | |
84e94c90 NC |
336 | |
337 | /* GNU extension to record C++ vtable hierarchy. */ | |
07d6d2b8 AM |
338 | HOWTO (R_LM32_GNU_VTINHERIT, /* type */ |
339 | 0, /* rightshift */ | |
340 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
341 | 0, /* bitsize */ | |
342 | FALSE, /* pc_relative */ | |
343 | 0, /* bitpos */ | |
344 | complain_overflow_dont, /* complain_on_overflow */ | |
345 | NULL, /* special_function */ | |
346 | "R_LM32_GNU_VTINHERIT", /* name */ | |
347 | FALSE, /* partial_inplace */ | |
348 | 0, /* src_mask */ | |
349 | 0, /* dst_mask */ | |
350 | FALSE), /* pcrel_offset */ | |
84e94c90 NC |
351 | |
352 | /* GNU extension to record C++ vtable member usage. */ | |
07d6d2b8 AM |
353 | HOWTO (R_LM32_GNU_VTENTRY, /* type */ |
354 | 0, /* rightshift */ | |
355 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
356 | 0, /* bitsize */ | |
357 | FALSE, /* pc_relative */ | |
358 | 0, /* bitpos */ | |
359 | complain_overflow_dont, /* complain_on_overflow */ | |
360 | _bfd_elf_rel_vtable_reloc_fn,/* special_function */ | |
361 | "R_LM32_GNU_VTENTRY", /* name */ | |
362 | FALSE, /* partial_inplace */ | |
363 | 0, /* src_mask */ | |
364 | 0, /* dst_mask */ | |
365 | FALSE), /* pcrel_offset */ | |
366 | ||
367 | HOWTO (R_LM32_16_GOT, /* type */ | |
368 | 0, /* rightshift */ | |
369 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
370 | 16, /* bitsize */ | |
371 | FALSE, /* pc_relative */ | |
372 | 0, /* bitpos */ | |
373 | complain_overflow_signed, /* complain_on_overflow */ | |
374 | bfd_elf_generic_reloc, /* special_function */ | |
375 | "R_LM32_16_GOT", /* name */ | |
376 | FALSE, /* partial_inplace */ | |
377 | 0, /* src_mask */ | |
378 | 0xffff, /* dst_mask */ | |
379 | FALSE), /* pcrel_offset */ | |
380 | ||
381 | HOWTO (R_LM32_GOTOFF_HI16, /* type */ | |
382 | 16, /* rightshift */ | |
383 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
384 | 16, /* bitsize */ | |
385 | FALSE, /* pc_relative */ | |
386 | 0, /* bitpos */ | |
387 | complain_overflow_dont, /* complain_on_overflow */ | |
388 | bfd_elf_generic_reloc, /* special_function */ | |
389 | "R_LM32_GOTOFF_HI16", /* name */ | |
390 | FALSE, /* partial_inplace */ | |
391 | 0xffff, /* src_mask */ | |
392 | 0xffff, /* dst_mask */ | |
393 | FALSE), /* pcrel_offset */ | |
394 | ||
395 | HOWTO (R_LM32_GOTOFF_LO16, /* type */ | |
396 | 0, /* rightshift */ | |
397 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
398 | 16, /* bitsize */ | |
399 | FALSE, /* pc_relative */ | |
400 | 0, /* bitpos */ | |
401 | complain_overflow_dont, /* complain_on_overflow */ | |
402 | bfd_elf_generic_reloc, /* special_function */ | |
403 | "R_LM32_GOTOFF_LO16", /* name */ | |
404 | FALSE, /* partial_inplace */ | |
405 | 0xffff, /* src_mask */ | |
406 | 0xffff, /* dst_mask */ | |
407 | FALSE), /* pcrel_offset */ | |
84e94c90 NC |
408 | |
409 | HOWTO (R_LM32_COPY, /* type */ | |
410 | 0, /* rightshift */ | |
411 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
412 | 32, /* bitsize */ | |
413 | FALSE, /* pc_relative */ | |
414 | 0, /* bitpos */ | |
415 | complain_overflow_bitfield, /* complain_on_overflow */ | |
416 | bfd_elf_generic_reloc, /* special_function */ | |
417 | "R_LM32_COPY", /* name */ | |
418 | FALSE, /* partial_inplace */ | |
419 | 0xffffffff, /* src_mask */ | |
420 | 0xffffffff, /* dst_mask */ | |
421 | FALSE), /* pcrel_offset */ | |
422 | ||
423 | HOWTO (R_LM32_GLOB_DAT, /* type */ | |
424 | 0, /* rightshift */ | |
425 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
426 | 32, /* bitsize */ | |
427 | FALSE, /* pc_relative */ | |
428 | 0, /* bitpos */ | |
429 | complain_overflow_bitfield, /* complain_on_overflow */ | |
430 | bfd_elf_generic_reloc, /* special_function */ | |
431 | "R_LM32_GLOB_DAT", /* name */ | |
432 | FALSE, /* partial_inplace */ | |
433 | 0xffffffff, /* src_mask */ | |
434 | 0xffffffff, /* dst_mask */ | |
435 | FALSE), /* pcrel_offset */ | |
436 | ||
437 | HOWTO (R_LM32_JMP_SLOT, /* type */ | |
438 | 0, /* rightshift */ | |
439 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
440 | 32, /* bitsize */ | |
441 | FALSE, /* pc_relative */ | |
442 | 0, /* bitpos */ | |
443 | complain_overflow_bitfield, /* complain_on_overflow */ | |
444 | bfd_elf_generic_reloc, /* special_function */ | |
445 | "R_LM32_JMP_SLOT", /* name */ | |
446 | FALSE, /* partial_inplace */ | |
447 | 0xffffffff, /* src_mask */ | |
448 | 0xffffffff, /* dst_mask */ | |
449 | FALSE), /* pcrel_offset */ | |
450 | ||
451 | HOWTO (R_LM32_RELATIVE, /* type */ | |
452 | 0, /* rightshift */ | |
453 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
454 | 32, /* bitsize */ | |
455 | FALSE, /* pc_relative */ | |
456 | 0, /* bitpos */ | |
457 | complain_overflow_bitfield, /* complain_on_overflow */ | |
458 | bfd_elf_generic_reloc, /* special_function */ | |
459 | "R_LM32_RELATIVE", /* name */ | |
460 | FALSE, /* partial_inplace */ | |
461 | 0xffffffff, /* src_mask */ | |
462 | 0xffffffff, /* dst_mask */ | |
463 | FALSE), /* pcrel_offset */ | |
464 | ||
465 | }; | |
466 | ||
467 | /* Map BFD reloc types to lm32 ELF reloc types. */ | |
468 | ||
469 | struct lm32_reloc_map | |
470 | { | |
471 | bfd_reloc_code_real_type bfd_reloc_val; | |
472 | unsigned char elf_reloc_val; | |
473 | }; | |
474 | ||
475 | static const struct lm32_reloc_map lm32_reloc_map[] = | |
476 | { | |
07d6d2b8 AM |
477 | { BFD_RELOC_NONE, R_LM32_NONE }, |
478 | { BFD_RELOC_8, R_LM32_8 }, | |
479 | { BFD_RELOC_16, R_LM32_16 }, | |
480 | { BFD_RELOC_32, R_LM32_32 }, | |
481 | { BFD_RELOC_HI16, R_LM32_HI16 }, | |
482 | { BFD_RELOC_LO16, R_LM32_LO16 }, | |
483 | { BFD_RELOC_GPREL16, R_LM32_GPREL16 }, | |
484 | { BFD_RELOC_LM32_CALL, R_LM32_CALL }, | |
485 | { BFD_RELOC_LM32_BRANCH, R_LM32_BRANCH }, | |
486 | { BFD_RELOC_VTABLE_INHERIT, R_LM32_GNU_VTINHERIT }, | |
487 | { BFD_RELOC_VTABLE_ENTRY, R_LM32_GNU_VTENTRY }, | |
488 | { BFD_RELOC_LM32_16_GOT, R_LM32_16_GOT }, | |
84e94c90 NC |
489 | { BFD_RELOC_LM32_GOTOFF_HI16, R_LM32_GOTOFF_HI16 }, |
490 | { BFD_RELOC_LM32_GOTOFF_LO16, R_LM32_GOTOFF_LO16 }, | |
07d6d2b8 AM |
491 | { BFD_RELOC_LM32_COPY, R_LM32_COPY }, |
492 | { BFD_RELOC_LM32_GLOB_DAT, R_LM32_GLOB_DAT }, | |
493 | { BFD_RELOC_LM32_JMP_SLOT, R_LM32_JMP_SLOT }, | |
494 | { BFD_RELOC_LM32_RELATIVE, R_LM32_RELATIVE }, | |
84e94c90 NC |
495 | }; |
496 | ||
497 | static reloc_howto_type * | |
498 | lm32_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
07d6d2b8 | 499 | bfd_reloc_code_real_type code) |
84e94c90 NC |
500 | { |
501 | unsigned int i; | |
502 | ||
503 | for (i = 0; i < sizeof (lm32_reloc_map) / sizeof (lm32_reloc_map[0]); i++) | |
504 | if (lm32_reloc_map[i].bfd_reloc_val == code) | |
505 | return &lm32_elf_howto_table[lm32_reloc_map[i].elf_reloc_val]; | |
506 | return NULL; | |
507 | } | |
508 | ||
509 | static reloc_howto_type * | |
510 | lm32_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
511 | const char *r_name) | |
512 | { | |
513 | unsigned int i; | |
514 | ||
515 | for (i = 0; | |
516 | i < sizeof (lm32_elf_howto_table) / sizeof (lm32_elf_howto_table[0]); | |
517 | i++) | |
518 | if (lm32_elf_howto_table[i].name != NULL | |
519 | && strcasecmp (lm32_elf_howto_table[i].name, r_name) == 0) | |
520 | return &lm32_elf_howto_table[i]; | |
521 | ||
522 | return NULL; | |
523 | } | |
524 | ||
525 | ||
526 | /* Set the howto pointer for an Lattice Mico32 ELF reloc. */ | |
527 | ||
528 | static void | |
0aa13fee | 529 | lm32_info_to_howto_rela (bfd *abfd, |
07d6d2b8 AM |
530 | arelent *cache_ptr, |
531 | Elf_Internal_Rela *dst) | |
84e94c90 NC |
532 | { |
533 | unsigned int r_type; | |
534 | ||
535 | r_type = ELF32_R_TYPE (dst->r_info); | |
5860e3f8 NC |
536 | if (r_type >= (unsigned int) R_LM32_max) |
537 | { | |
695344c0 | 538 | /* xgettext:c-format */ |
0aa13fee AM |
539 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
540 | abfd, r_type); | |
5860e3f8 NC |
541 | r_type = 0; |
542 | } | |
84e94c90 NC |
543 | cache_ptr->howto = &lm32_elf_howto_table[r_type]; |
544 | } | |
545 | ||
546 | /* Set the right machine number for an Lattice Mico32 ELF file. */ | |
547 | ||
548 | static bfd_boolean | |
549 | lm32_elf_object_p (bfd *abfd) | |
550 | { | |
551 | return bfd_default_set_arch_mach (abfd, bfd_arch_lm32, bfd_mach_lm32); | |
552 | } | |
553 | ||
554 | /* Set machine type flags just before file is written out. */ | |
555 | ||
556 | static void | |
557 | lm32_elf_final_write_processing (bfd *abfd, bfd_boolean linker ATTRIBUTE_UNUSED) | |
558 | { | |
559 | elf_elfheader (abfd)->e_machine = EM_LATTICEMICO32; | |
560 | elf_elfheader (abfd)->e_flags &=~ EF_LM32_MACH; | |
561 | switch (bfd_get_mach (abfd)) | |
562 | { | |
563 | case bfd_mach_lm32: | |
07d6d2b8 AM |
564 | elf_elfheader (abfd)->e_flags |= E_LM32_MACH; |
565 | break; | |
84e94c90 | 566 | default: |
07d6d2b8 | 567 | abort (); |
84e94c90 NC |
568 | } |
569 | } | |
570 | ||
571 | /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a | |
572 | dangerous relocation. */ | |
573 | ||
574 | static bfd_boolean | |
575 | lm32_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp) | |
576 | { | |
577 | unsigned int count; | |
578 | asymbol **sym; | |
579 | unsigned int i; | |
580 | ||
581 | /* If we've already figured out what GP will be, just return it. */ | |
582 | *pgp = _bfd_get_gp_value (output_bfd); | |
583 | if (*pgp) | |
584 | return TRUE; | |
585 | ||
586 | count = bfd_get_symcount (output_bfd); | |
587 | sym = bfd_get_outsymbols (output_bfd); | |
588 | ||
589 | /* The linker script will have created a symbol named `_gp' with the | |
590 | appropriate value. */ | |
591 | if (sym == NULL) | |
592 | i = count; | |
593 | else | |
594 | { | |
595 | for (i = 0; i < count; i++, sym++) | |
596 | { | |
597 | const char *name; | |
598 | ||
599 | name = bfd_asymbol_name (*sym); | |
600 | if (*name == '_' && strcmp (name, "_gp") == 0) | |
601 | { | |
602 | *pgp = bfd_asymbol_value (*sym); | |
603 | _bfd_set_gp_value (output_bfd, *pgp); | |
604 | break; | |
605 | } | |
606 | } | |
607 | } | |
608 | ||
609 | if (i >= count) | |
610 | { | |
611 | /* Only get the error once. */ | |
612 | *pgp = 4; | |
613 | _bfd_set_gp_value (output_bfd, *pgp); | |
614 | return FALSE; | |
615 | } | |
616 | ||
617 | return TRUE; | |
618 | } | |
619 | ||
620 | /* We have to figure out the gp value, so that we can adjust the | |
621 | symbol value correctly. We look up the symbol _gp in the output | |
622 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
623 | target data. We don't need to adjust the symbol value for an | |
624 | external symbol if we are producing relocatable output. */ | |
625 | ||
626 | static bfd_reloc_status_type | |
627 | lm32_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable, | |
07d6d2b8 | 628 | char **error_message, bfd_vma *pgp) |
84e94c90 NC |
629 | { |
630 | if (bfd_is_und_section (symbol->section) && !relocatable) | |
631 | { | |
632 | *pgp = 0; | |
633 | return bfd_reloc_undefined; | |
634 | } | |
635 | ||
636 | *pgp = _bfd_get_gp_value (output_bfd); | |
637 | if (*pgp == 0 && (!relocatable || (symbol->flags & BSF_SECTION_SYM) != 0)) | |
638 | { | |
639 | if (relocatable) | |
640 | { | |
641 | /* Make up a value. */ | |
642 | *pgp = symbol->section->output_section->vma + 0x4000; | |
643 | _bfd_set_gp_value (output_bfd, *pgp); | |
644 | } | |
645 | else if (!lm32_elf_assign_gp (output_bfd, pgp)) | |
646 | { | |
647 | *error_message = | |
648 | (char *) | |
649 | _("global pointer relative relocation when _gp not defined"); | |
650 | return bfd_reloc_dangerous; | |
651 | } | |
652 | } | |
653 | ||
654 | return bfd_reloc_ok; | |
655 | } | |
656 | ||
657 | static bfd_reloc_status_type | |
658 | lm32_elf_do_gprel_relocate (bfd *abfd, | |
659 | reloc_howto_type *howto, | |
660 | asection *input_section ATTRIBUTE_UNUSED, | |
661 | bfd_byte *data, | |
662 | bfd_vma offset, | |
663 | bfd_vma symbol_value, | |
664 | bfd_vma addend) | |
665 | { | |
666 | return _bfd_final_link_relocate (howto, abfd, input_section, | |
667 | data, offset, symbol_value, addend); | |
668 | } | |
669 | ||
670 | static bfd_reloc_status_type | |
671 | lm32_elf_gprel_reloc (bfd *abfd, | |
672 | arelent *reloc_entry, | |
673 | asymbol *symbol, | |
674 | void *data, | |
675 | asection *input_section, | |
676 | bfd *output_bfd, | |
677 | char **msg) | |
678 | { | |
679 | bfd_vma relocation; | |
680 | bfd_vma gp; | |
681 | bfd_reloc_status_type r; | |
682 | ||
683 | if (output_bfd != (bfd *) NULL | |
684 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
685 | && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) | |
686 | { | |
687 | reloc_entry->address += input_section->output_offset; | |
688 | return bfd_reloc_ok; | |
689 | } | |
690 | ||
691 | if (output_bfd != NULL) | |
692 | return bfd_reloc_ok; | |
693 | ||
694 | relocation = symbol->value | |
695 | + symbol->section->output_section->vma + symbol->section->output_offset; | |
696 | ||
697 | if ((r = | |
698 | lm32_elf_final_gp (abfd, symbol, FALSE, msg, &gp)) == bfd_reloc_ok) | |
699 | { | |
700 | relocation = relocation + reloc_entry->addend - gp; | |
701 | reloc_entry->addend = 0; | |
702 | if ((signed) relocation < -32768 || (signed) relocation > 32767) | |
703 | { | |
704 | *msg = _("global pointer relative address out of range"); | |
705 | r = bfd_reloc_outofrange; | |
706 | } | |
707 | else | |
708 | { | |
709 | r = lm32_elf_do_gprel_relocate (abfd, reloc_entry->howto, | |
710 | input_section, | |
711 | data, reloc_entry->address, | |
712 | relocation, reloc_entry->addend); | |
713 | } | |
714 | } | |
715 | ||
716 | return r; | |
717 | } | |
718 | ||
719 | /* Find the segment number in which OSEC, and output section, is | |
720 | located. */ | |
721 | ||
722 | static unsigned | |
723 | _lm32fdpic_osec_to_segment (bfd *output_bfd, asection *osec) | |
724 | { | |
725 | struct elf_segment_map *m; | |
726 | Elf_Internal_Phdr *p; | |
727 | ||
728 | /* Find the segment that contains the output_section. */ | |
12bd6957 | 729 | for (m = elf_seg_map (output_bfd), p = elf_tdata (output_bfd)->phdr; |
84e94c90 NC |
730 | m != NULL; |
731 | m = m->next, p++) | |
732 | { | |
733 | int i; | |
734 | ||
735 | for (i = m->count - 1; i >= 0; i--) | |
736 | if (m->sections[i] == osec) | |
737 | break; | |
738 | ||
739 | if (i >= 0) | |
740 | break; | |
741 | } | |
742 | ||
743 | return p - elf_tdata (output_bfd)->phdr; | |
744 | } | |
745 | ||
746 | /* Determine if an output section is read-only. */ | |
747 | ||
748 | inline static bfd_boolean | |
749 | _lm32fdpic_osec_readonly_p (bfd *output_bfd, asection *osec) | |
750 | { | |
751 | unsigned seg = _lm32fdpic_osec_to_segment (output_bfd, osec); | |
752 | ||
753 | return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W); | |
754 | } | |
755 | ||
756 | /* Relocate a section */ | |
757 | ||
758 | static bfd_boolean | |
759 | lm32_elf_relocate_section (bfd *output_bfd, | |
07d6d2b8 AM |
760 | struct bfd_link_info *info, |
761 | bfd *input_bfd, | |
762 | asection *input_section, | |
763 | bfd_byte *contents, | |
764 | Elf_Internal_Rela *relocs, | |
765 | Elf_Internal_Sym *local_syms, | |
766 | asection **local_sections) | |
84e94c90 NC |
767 | { |
768 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
769 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); | |
770 | Elf_Internal_Rela *rel, *relend; | |
84e94c90 | 771 | struct elf_lm32_link_hash_table *htab = lm32_elf_hash_table (info); |
84e94c90 | 772 | bfd_vma *local_got_offsets; |
c7e2358a | 773 | asection *sgot; |
84e94c90 | 774 | |
4dfe6ac6 NC |
775 | if (htab == NULL) |
776 | return FALSE; | |
777 | ||
84e94c90 NC |
778 | local_got_offsets = elf_local_got_offsets (input_bfd); |
779 | ||
ce558b89 | 780 | sgot = htab->root.sgot; |
84e94c90 NC |
781 | |
782 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
783 | sym_hashes = elf_sym_hashes (input_bfd); | |
784 | ||
785 | rel = relocs; | |
786 | relend = relocs + input_section->reloc_count; | |
787 | for (; rel < relend; rel++) | |
788 | { | |
789 | reloc_howto_type *howto; | |
790 | unsigned int r_type; | |
791 | unsigned long r_symndx; | |
792 | Elf_Internal_Sym *sym; | |
793 | asection *sec; | |
794 | struct elf_link_hash_entry *h; | |
795 | bfd_vma relocation; | |
796 | bfd_vma gp; | |
797 | bfd_reloc_status_type r; | |
798 | const char *name = NULL; | |
84e94c90 NC |
799 | |
800 | r_symndx = ELF32_R_SYM (rel->r_info); | |
801 | r_type = ELF32_R_TYPE (rel->r_info); | |
802 | ||
803 | if (r_type == R_LM32_GNU_VTENTRY | |
07d6d2b8 AM |
804 | || r_type == R_LM32_GNU_VTINHERIT ) |
805 | continue; | |
84e94c90 NC |
806 | |
807 | h = NULL; | |
808 | sym = NULL; | |
809 | sec = NULL; | |
810 | ||
811 | howto = lm32_elf_howto_table + r_type; | |
812 | ||
813 | if (r_symndx < symtab_hdr->sh_info) | |
07d6d2b8 AM |
814 | { |
815 | /* It's a local symbol. */ | |
816 | sym = local_syms + r_symndx; | |
817 | sec = local_sections[r_symndx]; | |
818 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
819 | name = bfd_elf_string_from_elf_section | |
84e94c90 NC |
820 | (input_bfd, symtab_hdr->sh_link, sym->st_name); |
821 | name = (name == NULL) ? bfd_section_name (input_bfd, sec) : name; | |
07d6d2b8 | 822 | } |
84e94c90 | 823 | else |
07d6d2b8 AM |
824 | { |
825 | /* It's a global symbol. */ | |
826 | bfd_boolean unresolved_reloc; | |
62d887d4 | 827 | bfd_boolean warned, ignored; |
84e94c90 NC |
828 | |
829 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
830 | r_symndx, symtab_hdr, sym_hashes, | |
831 | h, sec, relocation, | |
62d887d4 | 832 | unresolved_reloc, warned, ignored); |
84e94c90 | 833 | name = h->root.root.string; |
07d6d2b8 | 834 | } |
84e94c90 | 835 | |
dbaa2011 | 836 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 837 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 838 | rel, 1, relend, howto, 0, contents); |
84e94c90 | 839 | |
0e1862bb | 840 | if (bfd_link_relocatable (info)) |
07d6d2b8 | 841 | { |
84e94c90 NC |
842 | /* This is a relocatable link. We don't have to change |
843 | anything, unless the reloc is against a section symbol, | |
844 | in which case we have to adjust according to where the | |
845 | section symbol winds up in the output section. */ | |
846 | if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
847 | continue; | |
848 | ||
849 | /* If partial_inplace, we need to store any additional addend | |
850 | back in the section. */ | |
851 | if (! howto->partial_inplace) | |
852 | continue; | |
853 | ||
07d6d2b8 | 854 | /* Shouldn't reach here. */ |
84e94c90 NC |
855 | abort (); |
856 | r = bfd_reloc_ok; | |
07d6d2b8 | 857 | } |
84e94c90 | 858 | else |
07d6d2b8 AM |
859 | { |
860 | switch (howto->type) | |
861 | { | |
862 | case R_LM32_GPREL16: | |
863 | if (!lm32_elf_assign_gp (output_bfd, &gp)) | |
864 | r = bfd_reloc_dangerous; | |
865 | else | |
866 | { | |
867 | relocation = relocation + rel->r_addend - gp; | |
868 | rel->r_addend = 0; | |
869 | if ((signed)relocation < -32768 || (signed)relocation > 32767) | |
870 | r = bfd_reloc_outofrange; | |
871 | else | |
872 | { | |
873 | r = _bfd_final_link_relocate (howto, input_bfd, | |
874 | input_section, contents, | |
875 | rel->r_offset, relocation, | |
876 | rel->r_addend); | |
877 | } | |
878 | } | |
879 | break; | |
880 | case R_LM32_16_GOT: | |
881 | /* Relocation is to the entry for this symbol in the global | |
882 | offset table. */ | |
883 | BFD_ASSERT (sgot != NULL); | |
884 | if (h != NULL) | |
885 | { | |
886 | bfd_boolean dyn; | |
887 | bfd_vma off; | |
888 | ||
889 | off = h->got.offset; | |
890 | BFD_ASSERT (off != (bfd_vma) -1); | |
891 | ||
892 | dyn = htab->root.dynamic_sections_created; | |
893 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, | |
0e1862bb L |
894 | bfd_link_pic (info), |
895 | h) | |
07d6d2b8 AM |
896 | || (bfd_link_pic (info) |
897 | && (info->symbolic | |
898 | || h->dynindx == -1 | |
899 | || h->forced_local) | |
900 | && h->def_regular)) | |
901 | { | |
902 | /* This is actually a static link, or it is a | |
903 | -Bsymbolic link and the symbol is defined | |
904 | locally, or the symbol was forced to be local | |
905 | because of a version file. We must initialize | |
906 | this entry in the global offset table. Since the | |
907 | offset must always be a multiple of 4, we use the | |
908 | least significant bit to record whether we have | |
909 | initialized it already. | |
910 | ||
911 | When doing a dynamic link, we create a .rela.got | |
912 | relocation entry to initialize the value. This | |
913 | is done in the finish_dynamic_symbol routine. */ | |
914 | if ((off & 1) != 0) | |
915 | off &= ~1; | |
916 | else | |
917 | { | |
918 | /* Write entry in GOT */ | |
919 | bfd_put_32 (output_bfd, relocation, | |
920 | sgot->contents + off); | |
921 | /* Create entry in .rofixup pointing to GOT entry. */ | |
922 | if (IS_FDPIC (output_bfd) && h->root.type != bfd_link_hash_undefweak) | |
923 | { | |
924 | _lm32fdpic_add_rofixup (output_bfd, | |
925 | lm32fdpic_fixup32_section | |
926 | (info), | |
927 | sgot->output_section->vma | |
928 | + sgot->output_offset | |
929 | + off); | |
930 | } | |
931 | /* Mark GOT entry as having been written. */ | |
932 | h->got.offset |= 1; | |
933 | } | |
934 | } | |
935 | ||
936 | relocation = sgot->output_offset + off; | |
937 | } | |
938 | else | |
939 | { | |
940 | bfd_vma off; | |
941 | bfd_byte *loc; | |
942 | ||
943 | BFD_ASSERT (local_got_offsets != NULL | |
944 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
945 | ||
946 | /* Get offset into GOT table. */ | |
947 | off = local_got_offsets[r_symndx]; | |
948 | ||
949 | /* The offset must always be a multiple of 4. We use | |
950 | the least significant bit to record whether we have | |
951 | already processed this entry. */ | |
952 | if ((off & 1) != 0) | |
953 | off &= ~1; | |
954 | else | |
955 | { | |
956 | /* Write entry in GOT. */ | |
957 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
958 | /* Create entry in .rofixup pointing to GOT entry. */ | |
959 | if (IS_FDPIC (output_bfd)) | |
960 | { | |
961 | _lm32fdpic_add_rofixup (output_bfd, | |
962 | lm32fdpic_fixup32_section | |
963 | (info), | |
964 | sgot->output_section->vma | |
965 | + sgot->output_offset | |
966 | + off); | |
967 | } | |
968 | ||
969 | if (bfd_link_pic (info)) | |
970 | { | |
971 | asection *srelgot; | |
972 | Elf_Internal_Rela outrel; | |
973 | ||
974 | /* We need to generate a R_LM32_RELATIVE reloc | |
975 | for the dynamic linker. */ | |
976 | srelgot = htab->root.srelgot; | |
977 | BFD_ASSERT (srelgot != NULL); | |
978 | ||
979 | outrel.r_offset = (sgot->output_section->vma | |
980 | + sgot->output_offset | |
981 | + off); | |
982 | outrel.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE); | |
983 | outrel.r_addend = relocation; | |
984 | loc = srelgot->contents; | |
985 | loc += srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
986 | bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc); | |
987 | ++srelgot->reloc_count; | |
988 | } | |
989 | ||
990 | local_got_offsets[r_symndx] |= 1; | |
991 | } | |
992 | ||
993 | ||
994 | relocation = sgot->output_offset + off; | |
995 | } | |
996 | ||
997 | /* Addend should be zero. */ | |
998 | if (rel->r_addend != 0) | |
38f14ab8 AM |
999 | _bfd_error_handler |
1000 | (_("internal error: addend should be zero for %s"), | |
1001 | "R_LM32_16_GOT"); | |
84e94c90 | 1002 | |
07d6d2b8 AM |
1003 | r = _bfd_final_link_relocate (howto, |
1004 | input_bfd, | |
1005 | input_section, | |
1006 | contents, | |
1007 | rel->r_offset, | |
1008 | relocation, | |
1009 | rel->r_addend); | |
1010 | break; | |
1011 | ||
1012 | case R_LM32_GOTOFF_LO16: | |
1013 | case R_LM32_GOTOFF_HI16: | |
1014 | /* Relocation is offset from GOT. */ | |
84e94c90 NC |
1015 | BFD_ASSERT (sgot != NULL); |
1016 | relocation -= sgot->output_section->vma; | |
1017 | /* Account for sign-extension. */ | |
07d6d2b8 AM |
1018 | if ((r_type == R_LM32_GOTOFF_HI16) |
1019 | && ((relocation + rel->r_addend) & 0x8000)) | |
1020 | rel->r_addend += 0x10000; | |
1021 | r = _bfd_final_link_relocate (howto, | |
1022 | input_bfd, | |
1023 | input_section, | |
1024 | contents, | |
1025 | rel->r_offset, | |
1026 | relocation, | |
1027 | rel->r_addend); | |
1028 | break; | |
1029 | ||
1030 | case R_LM32_32: | |
1031 | if (IS_FDPIC (output_bfd)) | |
1032 | { | |
1033 | if ((!h) || (h && h->root.type != bfd_link_hash_undefweak)) | |
1034 | { | |
1035 | /* Only create .rofixup entries for relocs in loadable sections. */ | |
1036 | if ((bfd_get_section_flags (output_bfd, input_section->output_section) | |
1037 | & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
1038 | ||
1039 | { | |
1040 | /* Check address to be modified is writable. */ | |
1041 | if (_lm32fdpic_osec_readonly_p (output_bfd, | |
1042 | input_section | |
1043 | ->output_section)) | |
1044 | { | |
1045 | info->callbacks->warning | |
1046 | (info, | |
1047 | _("cannot emit dynamic relocations in read-only section"), | |
1048 | name, input_bfd, input_section, rel->r_offset); | |
1049 | return FALSE; | |
1050 | } | |
1051 | /* Create entry in .rofixup section. */ | |
1052 | _lm32fdpic_add_rofixup (output_bfd, | |
1053 | lm32fdpic_fixup32_section (info), | |
1054 | input_section->output_section->vma | |
1055 | + input_section->output_offset | |
1056 | + rel->r_offset); | |
1057 | } | |
1058 | } | |
1059 | } | |
1060 | /* Fall through. */ | |
1061 | ||
1062 | default: | |
1063 | r = _bfd_final_link_relocate (howto, | |
1064 | input_bfd, | |
1065 | input_section, | |
1066 | contents, | |
1067 | rel->r_offset, | |
1068 | relocation, | |
1069 | rel->r_addend); | |
1070 | break; | |
1071 | } | |
1072 | } | |
84e94c90 NC |
1073 | |
1074 | if (r != bfd_reloc_ok) | |
07d6d2b8 AM |
1075 | { |
1076 | const char *msg = NULL; | |
1077 | arelent bfd_reloc; | |
1078 | ||
1079 | lm32_info_to_howto_rela (input_bfd, &bfd_reloc, rel); | |
1080 | howto = bfd_reloc.howto; | |
1081 | ||
1082 | if (h != NULL) | |
1083 | name = h->root.root.string; | |
1084 | else | |
1085 | { | |
1086 | name = (bfd_elf_string_from_elf_section | |
1087 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
1088 | if (name == NULL || *name == '\0') | |
1089 | name = bfd_section_name (input_bfd, sec); | |
1090 | } | |
1091 | ||
1092 | switch (r) | |
1093 | { | |
84e94c90 NC |
1094 | case bfd_reloc_overflow: |
1095 | if ((h != NULL) | |
07d6d2b8 AM |
1096 | && (h->root.type == bfd_link_hash_undefweak)) |
1097 | break; | |
1a72702b AM |
1098 | (*info->callbacks->reloc_overflow) |
1099 | (info, (h ? &h->root : NULL), name, howto->name, | |
1100 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
84e94c90 NC |
1101 | break; |
1102 | ||
07d6d2b8 | 1103 | case bfd_reloc_undefined: |
1a72702b AM |
1104 | (*info->callbacks->undefined_symbol) |
1105 | (info, name, input_bfd, input_section, rel->r_offset, TRUE); | |
07d6d2b8 | 1106 | break; |
84e94c90 | 1107 | |
07d6d2b8 AM |
1108 | case bfd_reloc_outofrange: |
1109 | msg = _("internal error: out of range error"); | |
1110 | goto common_error; | |
84e94c90 | 1111 | |
07d6d2b8 AM |
1112 | case bfd_reloc_notsupported: |
1113 | msg = _("internal error: unsupported relocation error"); | |
1114 | goto common_error; | |
84e94c90 | 1115 | |
07d6d2b8 AM |
1116 | case bfd_reloc_dangerous: |
1117 | msg = _("internal error: dangerous error"); | |
1118 | goto common_error; | |
84e94c90 | 1119 | |
07d6d2b8 AM |
1120 | default: |
1121 | msg = _("internal error: unknown error"); | |
1122 | /* fall through */ | |
84e94c90 | 1123 | |
07d6d2b8 | 1124 | common_error: |
1a72702b AM |
1125 | (*info->callbacks->warning) (info, msg, name, input_bfd, |
1126 | input_section, rel->r_offset); | |
07d6d2b8 AM |
1127 | break; |
1128 | } | |
1129 | } | |
84e94c90 NC |
1130 | } |
1131 | ||
1132 | return TRUE; | |
1133 | } | |
1134 | ||
1135 | static asection * | |
1136 | lm32_elf_gc_mark_hook (asection *sec, | |
07d6d2b8 AM |
1137 | struct bfd_link_info *info, |
1138 | Elf_Internal_Rela *rel, | |
1139 | struct elf_link_hash_entry *h, | |
1140 | Elf_Internal_Sym *sym) | |
84e94c90 NC |
1141 | { |
1142 | if (h != NULL) | |
1143 | switch (ELF32_R_TYPE (rel->r_info)) | |
1144 | { | |
1145 | case R_LM32_GNU_VTINHERIT: | |
1146 | case R_LM32_GNU_VTENTRY: | |
1147 | return NULL; | |
1148 | } | |
1149 | ||
1150 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
1151 | } | |
1152 | ||
84e94c90 NC |
1153 | /* Look through the relocs for a section during the first phase. */ |
1154 | ||
1155 | static bfd_boolean | |
1156 | lm32_elf_check_relocs (bfd *abfd, | |
07d6d2b8 AM |
1157 | struct bfd_link_info *info, |
1158 | asection *sec, | |
1159 | const Elf_Internal_Rela *relocs) | |
84e94c90 NC |
1160 | { |
1161 | Elf_Internal_Shdr *symtab_hdr; | |
1162 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
1163 | const Elf_Internal_Rela *rel; | |
1164 | const Elf_Internal_Rela *rel_end; | |
1165 | struct elf_lm32_link_hash_table *htab; | |
1166 | bfd *dynobj; | |
84e94c90 | 1167 | |
0e1862bb | 1168 | if (bfd_link_relocatable (info)) |
84e94c90 NC |
1169 | return TRUE; |
1170 | ||
65281396 AM |
1171 | /* Don't do anything special with non-loaded, non-alloced sections. |
1172 | In particular, any relocs in such sections should not affect GOT | |
1173 | and PLT reference counting (ie. we don't allow them to create GOT | |
1174 | or PLT entries), there's no possibility or desire to optimize TLS | |
1175 | relocs, and there's not much point in propagating relocs to shared | |
1176 | libs that the dynamic linker won't relocate. */ | |
1177 | if ((sec->flags & SEC_ALLOC) == 0) | |
1178 | return TRUE; | |
1179 | ||
84e94c90 NC |
1180 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1181 | sym_hashes = elf_sym_hashes (abfd); | |
1182 | sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym); | |
1183 | if (!elf_bad_symtab (abfd)) | |
1184 | sym_hashes_end -= symtab_hdr->sh_info; | |
1185 | ||
1186 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
1187 | if (htab == NULL) |
1188 | return FALSE; | |
1189 | ||
84e94c90 | 1190 | dynobj = htab->root.dynobj; |
84e94c90 NC |
1191 | |
1192 | rel_end = relocs + sec->reloc_count; | |
1193 | for (rel = relocs; rel < rel_end; rel++) | |
1194 | { | |
1195 | int r_type; | |
1196 | struct elf_link_hash_entry *h; | |
1197 | unsigned long r_symndx; | |
1198 | ||
1199 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1200 | r_type = ELF32_R_TYPE (rel->r_info); | |
1201 | if (r_symndx < symtab_hdr->sh_info) | |
07d6d2b8 | 1202 | h = NULL; |
84e94c90 NC |
1203 | else |
1204 | { | |
1205 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1206 | while (h->root.type == bfd_link_hash_indirect | |
1207 | || h->root.type == bfd_link_hash_warning) | |
1208 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1209 | } | |
1210 | ||
1211 | /* Some relocs require a global offset table. */ | |
ce558b89 | 1212 | if (htab->root.sgot == NULL) |
07d6d2b8 AM |
1213 | { |
1214 | switch (r_type) | |
1215 | { | |
1216 | case R_LM32_16_GOT: | |
1217 | case R_LM32_GOTOFF_HI16: | |
1218 | case R_LM32_GOTOFF_LO16: | |
1219 | if (dynobj == NULL) | |
1220 | htab->root.dynobj = dynobj = abfd; | |
1221 | if (!_bfd_elf_create_got_section (dynobj, info)) | |
1222 | return FALSE; | |
1223 | break; | |
1224 | } | |
1225 | } | |
84e94c90 NC |
1226 | |
1227 | /* Some relocs require a rofixup table. */ | |
1228 | if (IS_FDPIC (abfd)) | |
07d6d2b8 AM |
1229 | { |
1230 | switch (r_type) | |
1231 | { | |
1232 | case R_LM32_32: | |
1233 | /* FDPIC requires a GOT if there is a .rofixup section | |
1234 | (Normal ELF doesn't). */ | |
1235 | if (dynobj == NULL) | |
1236 | htab->root.dynobj = dynobj = abfd; | |
1237 | if (!_bfd_elf_create_got_section (dynobj, info)) | |
1238 | return FALSE; | |
1239 | /* Create .rofixup section */ | |
1240 | if (htab->sfixup32 == NULL) | |
1241 | { | |
1242 | if (! create_rofixup_section (dynobj, info)) | |
1243 | return FALSE; | |
1244 | } | |
1245 | break; | |
1246 | case R_LM32_16_GOT: | |
1247 | case R_LM32_GOTOFF_HI16: | |
1248 | case R_LM32_GOTOFF_LO16: | |
1249 | /* Create .rofixup section. */ | |
1250 | if (htab->sfixup32 == NULL) | |
1251 | { | |
3d4d4302 AM |
1252 | if (dynobj == NULL) |
1253 | htab->root.dynobj = dynobj = abfd; | |
07d6d2b8 AM |
1254 | if (! create_rofixup_section (dynobj, info)) |
1255 | return FALSE; | |
1256 | } | |
1257 | break; | |
1258 | } | |
1259 | } | |
84e94c90 NC |
1260 | |
1261 | switch (r_type) | |
1262 | { | |
1263 | case R_LM32_16_GOT: | |
07d6d2b8 AM |
1264 | if (h != NULL) |
1265 | h->got.refcount += 1; | |
1266 | else | |
1267 | { | |
1268 | bfd_signed_vma *local_got_refcounts; | |
1269 | ||
1270 | /* This is a global offset table entry for a local symbol. */ | |
1271 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1272 | if (local_got_refcounts == NULL) | |
1273 | { | |
1274 | bfd_size_type size; | |
1275 | ||
1276 | size = symtab_hdr->sh_info; | |
1277 | size *= sizeof (bfd_signed_vma); | |
1278 | local_got_refcounts = bfd_zalloc (abfd, size); | |
1279 | if (local_got_refcounts == NULL) | |
1280 | return FALSE; | |
1281 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1282 | } | |
1283 | local_got_refcounts[r_symndx] += 1; | |
1284 | } | |
1285 | break; | |
1286 | ||
1287 | /* This relocation describes the C++ object vtable hierarchy. | |
1288 | Reconstruct it for later use during GC. */ | |
1289 | case R_LM32_GNU_VTINHERIT: | |
1290 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
1291 | return FALSE; | |
1292 | break; | |
1293 | ||
1294 | /* This relocation describes which C++ vtable entries are actually | |
1295 | used. Record for later use during GC. */ | |
1296 | case R_LM32_GNU_VTENTRY: | |
1297 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
1298 | return FALSE; | |
1299 | break; | |
1300 | ||
1301 | } | |
84e94c90 NC |
1302 | } |
1303 | ||
1304 | return TRUE; | |
1305 | } | |
1306 | ||
1307 | /* Finish up the dynamic sections. */ | |
1308 | ||
1309 | static bfd_boolean | |
1310 | lm32_elf_finish_dynamic_sections (bfd *output_bfd, | |
1311 | struct bfd_link_info *info) | |
1312 | { | |
1313 | struct elf_lm32_link_hash_table *htab; | |
1314 | bfd *dynobj; | |
1315 | asection *sdyn; | |
1316 | asection *sgot; | |
1317 | ||
1318 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
1319 | if (htab == NULL) |
1320 | return FALSE; | |
1321 | ||
84e94c90 NC |
1322 | dynobj = htab->root.dynobj; |
1323 | ||
ce558b89 | 1324 | sgot = htab->root.sgotplt; |
3d4d4302 | 1325 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
84e94c90 NC |
1326 | |
1327 | if (htab->root.dynamic_sections_created) | |
1328 | { | |
1329 | asection *splt; | |
1330 | Elf32_External_Dyn *dyncon, *dynconend; | |
1331 | ||
1332 | BFD_ASSERT (sgot != NULL && sdyn != NULL); | |
1333 | ||
1334 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
1335 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
1336 | ||
1337 | for (; dyncon < dynconend; dyncon++) | |
07d6d2b8 AM |
1338 | { |
1339 | Elf_Internal_Dyn dyn; | |
1340 | asection *s; | |
1341 | ||
1342 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
1343 | ||
1344 | switch (dyn.d_tag) | |
1345 | { | |
1346 | default: | |
1347 | break; | |
1348 | ||
1349 | case DT_PLTGOT: | |
1350 | s = htab->root.sgotplt; | |
1351 | goto get_vma; | |
1352 | case DT_JMPREL: | |
1353 | s = htab->root.srelplt; | |
1354 | get_vma: | |
1355 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
1356 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
1357 | break; | |
1358 | ||
1359 | case DT_PLTRELSZ: | |
1360 | s = htab->root.srelplt; | |
84e94c90 | 1361 | dyn.d_un.d_val = s->size; |
07d6d2b8 AM |
1362 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
1363 | break; | |
1364 | } | |
1365 | } | |
84e94c90 NC |
1366 | |
1367 | /* Fill in the first entry in the procedure linkage table. */ | |
ce558b89 | 1368 | splt = htab->root.splt; |
84e94c90 | 1369 | if (splt && splt->size > 0) |
07d6d2b8 AM |
1370 | { |
1371 | if (bfd_link_pic (info)) | |
1372 | { | |
1373 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents); | |
1374 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4); | |
1375 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8); | |
1376 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12); | |
1377 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16); | |
1378 | } | |
1379 | else | |
1380 | { | |
1381 | unsigned long addr; | |
1382 | /* addr = .got + 4 */ | |
1383 | addr = sgot->output_section->vma + sgot->output_offset + 4; | |
1384 | bfd_put_32 (output_bfd, | |
84e94c90 NC |
1385 | PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff), |
1386 | splt->contents); | |
07d6d2b8 | 1387 | bfd_put_32 (output_bfd, |
84e94c90 NC |
1388 | PLT0_ENTRY_WORD1 | (addr & 0xffff), |
1389 | splt->contents + 4); | |
07d6d2b8 AM |
1390 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8); |
1391 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12); | |
1392 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16); | |
1393 | } | |
1394 | ||
1395 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = | |
1396 | PLT_ENTRY_SIZE; | |
1397 | } | |
84e94c90 NC |
1398 | } |
1399 | ||
1400 | /* Fill in the first three entries in the global offset table. */ | |
1401 | if (sgot && sgot->size > 0) | |
1402 | { | |
1403 | if (sdyn == NULL) | |
07d6d2b8 | 1404 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); |
84e94c90 | 1405 | else |
07d6d2b8 AM |
1406 | bfd_put_32 (output_bfd, |
1407 | sdyn->output_section->vma + sdyn->output_offset, | |
1408 | sgot->contents); | |
84e94c90 NC |
1409 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); |
1410 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
1411 | ||
1412 | /* FIXME: This can be null if create_dynamic_sections wasn't called. */ | |
1413 | if (elf_section_data (sgot->output_section) != NULL) | |
07d6d2b8 | 1414 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; |
84e94c90 NC |
1415 | } |
1416 | ||
1417 | if (lm32fdpic_fixup32_section (info)) | |
1418 | { | |
1419 | struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot; | |
1420 | bfd_vma got_value = hgot->root.u.def.value | |
07d6d2b8 AM |
1421 | + hgot->root.u.def.section->output_section->vma |
1422 | + hgot->root.u.def.section->output_offset; | |
84e94c90 NC |
1423 | struct bfd_link_hash_entry *hend; |
1424 | ||
1425 | /* Last entry is pointer to GOT. */ | |
1426 | _lm32fdpic_add_rofixup (output_bfd, lm32fdpic_fixup32_section (info), got_value); | |
1427 | ||
1428 | /* Check we wrote enough entries. */ | |
1429 | if (lm32fdpic_fixup32_section (info)->size | |
07d6d2b8 AM |
1430 | != (lm32fdpic_fixup32_section (info)->reloc_count * 4)) |
1431 | { | |
4eca0228 | 1432 | _bfd_error_handler |
2dcf00ce AM |
1433 | ("LINKER BUG: .rofixup section size mismatch: size/4 %" PRId64 |
1434 | " != relocs %d", | |
1435 | (int64_t) (lm32fdpic_fixup32_section (info)->size / 4), | |
07d6d2b8 AM |
1436 | lm32fdpic_fixup32_section (info)->reloc_count); |
1437 | return FALSE; | |
1438 | } | |
84e94c90 NC |
1439 | |
1440 | hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__", | |
07d6d2b8 | 1441 | FALSE, FALSE, TRUE); |
84e94c90 | 1442 | if (hend |
07d6d2b8 AM |
1443 | && (hend->type == bfd_link_hash_defined |
1444 | || hend->type == bfd_link_hash_defweak)) | |
1445 | { | |
1446 | bfd_vma value = | |
1447 | lm32fdpic_fixup32_section (info)->output_section->vma | |
1448 | + lm32fdpic_fixup32_section (info)->output_offset | |
1449 | + lm32fdpic_fixup32_section (info)->size | |
1450 | - hend->u.def.section->output_section->vma | |
1451 | - hend->u.def.section->output_offset; | |
1452 | BFD_ASSERT (hend->u.def.value == value); | |
1453 | if (hend->u.def.value != value) | |
1454 | { | |
4eca0228 | 1455 | _bfd_error_handler |
2dcf00ce AM |
1456 | ("LINKER BUG: .rofixup section hend->u.def.value != value: %" |
1457 | PRId64 " != %" PRId64, | |
1458 | (int64_t) hend->u.def.value, (int64_t) value); | |
07d6d2b8 AM |
1459 | return FALSE; |
1460 | } | |
1461 | } | |
84e94c90 NC |
1462 | } |
1463 | ||
1464 | return TRUE; | |
1465 | } | |
1466 | ||
1467 | /* Finish up dynamic symbol handling. We set the contents of various | |
1468 | dynamic sections here. */ | |
1469 | ||
1470 | static bfd_boolean | |
1471 | lm32_elf_finish_dynamic_symbol (bfd *output_bfd, | |
1472 | struct bfd_link_info *info, | |
1473 | struct elf_link_hash_entry *h, | |
1474 | Elf_Internal_Sym *sym) | |
1475 | { | |
1476 | struct elf_lm32_link_hash_table *htab; | |
84e94c90 NC |
1477 | bfd_byte *loc; |
1478 | ||
1479 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
1480 | if (htab == NULL) |
1481 | return FALSE; | |
1482 | ||
84e94c90 NC |
1483 | if (h->plt.offset != (bfd_vma) -1) |
1484 | { | |
1485 | asection *splt; | |
1486 | asection *sgot; | |
1487 | asection *srela; | |
1488 | ||
1489 | bfd_vma plt_index; | |
1490 | bfd_vma got_offset; | |
1491 | Elf_Internal_Rela rela; | |
1492 | ||
1493 | /* This symbol has an entry in the procedure linkage table. Set | |
07d6d2b8 | 1494 | it up. */ |
84e94c90 NC |
1495 | BFD_ASSERT (h->dynindx != -1); |
1496 | ||
ce558b89 AM |
1497 | splt = htab->root.splt; |
1498 | sgot = htab->root.sgotplt; | |
1499 | srela = htab->root.srelplt; | |
84e94c90 NC |
1500 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); |
1501 | ||
1502 | /* Get the index in the procedure linkage table which | |
07d6d2b8 AM |
1503 | corresponds to this symbol. This is the index of this symbol |
1504 | in all the symbols for which we are making plt entries. The | |
1505 | first entry in the procedure linkage table is reserved. */ | |
84e94c90 NC |
1506 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; |
1507 | ||
1508 | /* Get the offset into the .got table of the entry that | |
07d6d2b8 AM |
1509 | corresponds to this function. Each .got entry is 4 bytes. |
1510 | The first three are reserved. */ | |
84e94c90 NC |
1511 | got_offset = (plt_index + 3) * 4; |
1512 | ||
1513 | /* Fill in the entry in the procedure linkage table. */ | |
0e1862bb | 1514 | if (! bfd_link_pic (info)) |
07d6d2b8 AM |
1515 | { |
1516 | /* TODO */ | |
1517 | } | |
84e94c90 | 1518 | else |
07d6d2b8 AM |
1519 | { |
1520 | /* TODO */ | |
1521 | } | |
84e94c90 NC |
1522 | |
1523 | /* Fill in the entry in the global offset table. */ | |
1524 | bfd_put_32 (output_bfd, | |
07d6d2b8 AM |
1525 | (splt->output_section->vma |
1526 | + splt->output_offset | |
1527 | + h->plt.offset | |
1528 | + 12), /* same offset */ | |
1529 | sgot->contents + got_offset); | |
84e94c90 NC |
1530 | |
1531 | /* Fill in the entry in the .rela.plt section. */ | |
1532 | rela.r_offset = (sgot->output_section->vma | |
07d6d2b8 AM |
1533 | + sgot->output_offset |
1534 | + got_offset); | |
84e94c90 NC |
1535 | rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_JMP_SLOT); |
1536 | rela.r_addend = 0; | |
1537 | loc = srela->contents; | |
1538 | loc += plt_index * sizeof (Elf32_External_Rela); | |
1539 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1540 | ||
1541 | if (!h->def_regular) | |
07d6d2b8 AM |
1542 | { |
1543 | /* Mark the symbol as undefined, rather than as defined in | |
1544 | the .plt section. Leave the value alone. */ | |
1545 | sym->st_shndx = SHN_UNDEF; | |
1546 | } | |
84e94c90 NC |
1547 | |
1548 | } | |
1549 | ||
1550 | if (h->got.offset != (bfd_vma) -1) | |
1551 | { | |
1552 | asection *sgot; | |
1553 | asection *srela; | |
1554 | Elf_Internal_Rela rela; | |
1555 | ||
1556 | /* This symbol has an entry in the global offset table. Set it | |
07d6d2b8 | 1557 | up. */ |
ce558b89 AM |
1558 | sgot = htab->root.sgot; |
1559 | srela = htab->root.srelgot; | |
84e94c90 NC |
1560 | BFD_ASSERT (sgot != NULL && srela != NULL); |
1561 | ||
1562 | rela.r_offset = (sgot->output_section->vma | |
07d6d2b8 AM |
1563 | + sgot->output_offset |
1564 | + (h->got.offset &~ 1)); | |
84e94c90 NC |
1565 | |
1566 | /* If this is a -Bsymbolic link, and the symbol is defined | |
07d6d2b8 AM |
1567 | locally, we just want to emit a RELATIVE reloc. Likewise if |
1568 | the symbol was forced to be local because of a version file. | |
1569 | The entry in the global offset table will already have been | |
1570 | initialized in the relocate_section function. */ | |
0e1862bb | 1571 | if (bfd_link_pic (info) |
07d6d2b8 | 1572 | && (info->symbolic |
84e94c90 NC |
1573 | || h->dynindx == -1 |
1574 | || h->forced_local) | |
07d6d2b8 AM |
1575 | && h->def_regular) |
1576 | { | |
1577 | rela.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE); | |
1578 | rela.r_addend = (h->root.u.def.value | |
1579 | + h->root.u.def.section->output_section->vma | |
1580 | + h->root.u.def.section->output_offset); | |
1581 | } | |
84e94c90 | 1582 | else |
07d6d2b8 | 1583 | { |
84e94c90 | 1584 | BFD_ASSERT ((h->got.offset & 1) == 0); |
07d6d2b8 AM |
1585 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); |
1586 | rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_GLOB_DAT); | |
1587 | rela.r_addend = 0; | |
1588 | } | |
84e94c90 NC |
1589 | |
1590 | loc = srela->contents; | |
1591 | loc += srela->reloc_count * sizeof (Elf32_External_Rela); | |
1592 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1593 | ++srela->reloc_count; | |
1594 | } | |
1595 | ||
1596 | if (h->needs_copy) | |
1597 | { | |
1598 | asection *s; | |
1599 | Elf_Internal_Rela rela; | |
1600 | ||
1601 | /* This symbols needs a copy reloc. Set it up. */ | |
1602 | BFD_ASSERT (h->dynindx != -1 | |
07d6d2b8 AM |
1603 | && (h->root.type == bfd_link_hash_defined |
1604 | || h->root.type == bfd_link_hash_defweak)); | |
84e94c90 | 1605 | |
3d4d4302 | 1606 | s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss"); |
84e94c90 NC |
1607 | BFD_ASSERT (s != NULL); |
1608 | ||
1609 | rela.r_offset = (h->root.u.def.value | |
07d6d2b8 AM |
1610 | + h->root.u.def.section->output_section->vma |
1611 | + h->root.u.def.section->output_offset); | |
84e94c90 NC |
1612 | rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_COPY); |
1613 | rela.r_addend = 0; | |
1614 | loc = s->contents; | |
1615 | loc += s->reloc_count * sizeof (Elf32_External_Rela); | |
1616 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1617 | ++s->reloc_count; | |
1618 | } | |
1619 | ||
1620 | /* Mark some specially defined symbols as absolute. */ | |
9637f6ef | 1621 | if (h == htab->root.hdynamic || h == htab->root.hgot) |
84e94c90 NC |
1622 | sym->st_shndx = SHN_ABS; |
1623 | ||
1624 | return TRUE; | |
1625 | } | |
1626 | ||
1627 | static enum elf_reloc_type_class | |
7e612e98 AM |
1628 | lm32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1629 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
1630 | const Elf_Internal_Rela *rela) | |
84e94c90 NC |
1631 | { |
1632 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
1633 | { | |
1634 | case R_LM32_RELATIVE: return reloc_class_relative; | |
1635 | case R_LM32_JMP_SLOT: return reloc_class_plt; | |
1636 | case R_LM32_COPY: return reloc_class_copy; | |
07d6d2b8 | 1637 | default: return reloc_class_normal; |
84e94c90 NC |
1638 | } |
1639 | } | |
1640 | ||
63c1f59d AM |
1641 | /* Find dynamic relocs for H that apply to read-only sections. */ |
1642 | ||
1643 | static asection * | |
1644 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
1645 | { | |
3bf083ed | 1646 | struct elf_dyn_relocs *p; |
63c1f59d AM |
1647 | struct elf_lm32_link_hash_entry *eh = (struct elf_lm32_link_hash_entry *) h; |
1648 | ||
1649 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1650 | { | |
1651 | asection *s = p->sec->output_section; | |
1652 | ||
1653 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1654 | return p->sec; | |
1655 | } | |
1656 | return NULL; | |
1657 | } | |
1658 | ||
84e94c90 NC |
1659 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1660 | regular object. The current definition is in some section of the | |
1661 | dynamic object, but we're not including those sections. We have to | |
1662 | change the definition to something the rest of the link can | |
1663 | understand. */ | |
1664 | ||
1665 | static bfd_boolean | |
1666 | lm32_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
1667 | struct elf_link_hash_entry *h) | |
1668 | { | |
1669 | struct elf_lm32_link_hash_table *htab; | |
84e94c90 NC |
1670 | bfd *dynobj; |
1671 | asection *s; | |
1672 | ||
1673 | dynobj = elf_hash_table (info)->dynobj; | |
1674 | ||
1675 | /* Make sure we know what is going on here. */ | |
1676 | BFD_ASSERT (dynobj != NULL | |
07d6d2b8 AM |
1677 | && (h->needs_plt |
1678 | || h->is_weakalias | |
1679 | || (h->def_dynamic | |
1680 | && h->ref_regular | |
1681 | && !h->def_regular))); | |
84e94c90 NC |
1682 | |
1683 | /* If this is a function, put it in the procedure linkage table. We | |
1684 | will fill in the contents of the procedure linkage table later, | |
1685 | when we know the address of the .got section. */ | |
1686 | if (h->type == STT_FUNC | |
1687 | || h->needs_plt) | |
1688 | { | |
0e1862bb | 1689 | if (! bfd_link_pic (info) |
07d6d2b8 AM |
1690 | && !h->def_dynamic |
1691 | && !h->ref_dynamic | |
84e94c90 NC |
1692 | && h->root.type != bfd_link_hash_undefweak |
1693 | && h->root.type != bfd_link_hash_undefined) | |
07d6d2b8 AM |
1694 | { |
1695 | /* This case can occur if we saw a PLT reloc in an input | |
1696 | file, but the symbol was never referred to by a dynamic | |
1697 | object. In such a case, we don't actually need to build | |
1698 | a procedure linkage table, and we can just do a PCREL | |
1699 | reloc instead. */ | |
1700 | h->plt.offset = (bfd_vma) -1; | |
1701 | h->needs_plt = 0; | |
1702 | } | |
84e94c90 NC |
1703 | |
1704 | return TRUE; | |
1705 | } | |
1706 | else | |
1707 | h->plt.offset = (bfd_vma) -1; | |
1708 | ||
1709 | /* If this is a weak symbol, and there is a real definition, the | |
1710 | processor independent code will have arranged for us to see the | |
1711 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 1712 | if (h->is_weakalias) |
84e94c90 | 1713 | { |
60d67dc8 AM |
1714 | struct elf_link_hash_entry *def = weakdef (h); |
1715 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
1716 | h->root.u.def.section = def->root.u.def.section; | |
1717 | h->root.u.def.value = def->root.u.def.value; | |
84e94c90 NC |
1718 | return TRUE; |
1719 | } | |
1720 | ||
1721 | /* This is a reference to a symbol defined by a dynamic object which | |
1722 | is not a function. */ | |
1723 | ||
1724 | /* If we are creating a shared library, we must presume that the | |
1725 | only references to the symbol are via the global offset table. | |
1726 | For such cases we need not do anything here; the relocations will | |
1727 | be handled correctly by relocate_section. */ | |
0e1862bb | 1728 | if (bfd_link_pic (info)) |
84e94c90 NC |
1729 | return TRUE; |
1730 | ||
1731 | /* If there are no references to this symbol that do not use the | |
1732 | GOT, we don't need to generate a copy reloc. */ | |
1733 | if (!h->non_got_ref) | |
1734 | return TRUE; | |
1735 | ||
1736 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
3bf083ed | 1737 | if (0 && info->nocopyreloc) |
84e94c90 NC |
1738 | { |
1739 | h->non_got_ref = 0; | |
1740 | return TRUE; | |
1741 | } | |
1742 | ||
3bf083ed AM |
1743 | /* If we don't find any dynamic relocs in read-only sections, then |
1744 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1745 | if (0 && !readonly_dynrelocs (h)) | |
84e94c90 NC |
1746 | { |
1747 | h->non_got_ref = 0; | |
1748 | return TRUE; | |
1749 | } | |
1750 | ||
84e94c90 NC |
1751 | /* We must allocate the symbol in our .dynbss section, which will |
1752 | become part of the .bss section of the executable. There will be | |
1753 | an entry for this symbol in the .dynsym section. The dynamic | |
1754 | object will contain position independent code, so all references | |
1755 | from the dynamic object to this symbol will go through the global | |
1756 | offset table. The dynamic linker will use the .dynsym entry to | |
1757 | determine the address it must put in the global offset table, so | |
1758 | both the dynamic object and the regular object will refer to the | |
1759 | same memory location for the variable. */ | |
1760 | ||
1761 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
1762 | if (htab == NULL) |
1763 | return FALSE; | |
1764 | ||
84e94c90 NC |
1765 | s = htab->sdynbss; |
1766 | BFD_ASSERT (s != NULL); | |
1767 | ||
1768 | /* We must generate a R_LM32_COPY reloc to tell the dynamic linker | |
1769 | to copy the initial value out of the dynamic object and into the | |
1770 | runtime process image. We need to remember the offset into the | |
1771 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 1772 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
84e94c90 NC |
1773 | { |
1774 | asection *srel; | |
1775 | ||
1776 | srel = htab->srelbss; | |
1777 | BFD_ASSERT (srel != NULL); | |
1778 | srel->size += sizeof (Elf32_External_Rela); | |
1779 | h->needs_copy = 1; | |
1780 | } | |
1781 | ||
6cabe1ea | 1782 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
84e94c90 NC |
1783 | } |
1784 | ||
1785 | /* Allocate space in .plt, .got and associated reloc sections for | |
1786 | dynamic relocs. */ | |
1787 | ||
1788 | static bfd_boolean | |
1789 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) | |
1790 | { | |
1791 | struct bfd_link_info *info; | |
1792 | struct elf_lm32_link_hash_table *htab; | |
1793 | struct elf_lm32_link_hash_entry *eh; | |
3bf083ed | 1794 | struct elf_dyn_relocs *p; |
84e94c90 NC |
1795 | |
1796 | if (h->root.type == bfd_link_hash_indirect) | |
1797 | return TRUE; | |
1798 | ||
84e94c90 NC |
1799 | info = (struct bfd_link_info *) inf; |
1800 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
1801 | if (htab == NULL) |
1802 | return FALSE; | |
84e94c90 NC |
1803 | |
1804 | eh = (struct elf_lm32_link_hash_entry *) h; | |
1805 | ||
1806 | if (htab->root.dynamic_sections_created | |
1807 | && h->plt.refcount > 0) | |
1808 | { | |
1809 | /* Make sure this symbol is output as a dynamic symbol. | |
07d6d2b8 | 1810 | Undefined weak syms won't yet be marked as dynamic. */ |
84e94c90 | 1811 | if (h->dynindx == -1 |
07d6d2b8 AM |
1812 | && !h->forced_local) |
1813 | { | |
1814 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
1815 | return FALSE; | |
1816 | } | |
84e94c90 | 1817 | |
0e1862bb | 1818 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
07d6d2b8 AM |
1819 | { |
1820 | asection *s = htab->root.splt; | |
1821 | ||
1822 | /* If this is the first .plt entry, make room for the special | |
1823 | first entry. */ | |
1824 | if (s->size == 0) | |
1825 | s->size += PLT_ENTRY_SIZE; | |
1826 | ||
1827 | h->plt.offset = s->size; | |
1828 | ||
1829 | /* If this symbol is not defined in a regular file, and we are | |
1830 | not generating a shared library, then set the symbol to this | |
1831 | location in the .plt. This is required to make function | |
1832 | pointers compare as equal between the normal executable and | |
1833 | the shared library. */ | |
1834 | if (! bfd_link_pic (info) | |
1835 | && !h->def_regular) | |
1836 | { | |
1837 | h->root.u.def.section = s; | |
1838 | h->root.u.def.value = h->plt.offset; | |
1839 | } | |
1840 | ||
1841 | /* Make room for this entry. */ | |
1842 | s->size += PLT_ENTRY_SIZE; | |
1843 | ||
1844 | /* We also need to make an entry in the .got.plt section, which | |
1845 | will be placed in the .got section by the linker script. */ | |
1846 | htab->root.sgotplt->size += 4; | |
1847 | ||
1848 | /* We also need to make an entry in the .rel.plt section. */ | |
1849 | htab->root.srelplt->size += sizeof (Elf32_External_Rela); | |
1850 | } | |
84e94c90 | 1851 | else |
07d6d2b8 AM |
1852 | { |
1853 | h->plt.offset = (bfd_vma) -1; | |
1854 | h->needs_plt = 0; | |
1855 | } | |
84e94c90 NC |
1856 | } |
1857 | else | |
1858 | { | |
1859 | h->plt.offset = (bfd_vma) -1; | |
1860 | h->needs_plt = 0; | |
1861 | } | |
1862 | ||
1863 | if (h->got.refcount > 0) | |
1864 | { | |
1865 | asection *s; | |
1866 | bfd_boolean dyn; | |
1867 | ||
1868 | /* Make sure this symbol is output as a dynamic symbol. | |
07d6d2b8 | 1869 | Undefined weak syms won't yet be marked as dynamic. */ |
84e94c90 | 1870 | if (h->dynindx == -1 |
07d6d2b8 AM |
1871 | && !h->forced_local) |
1872 | { | |
1873 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
1874 | return FALSE; | |
1875 | } | |
84e94c90 | 1876 | |
ce558b89 | 1877 | s = htab->root.sgot; |
84e94c90 NC |
1878 | |
1879 | h->got.offset = s->size; | |
1880 | s->size += 4; | |
1881 | dyn = htab->root.dynamic_sections_created; | |
0e1862bb | 1882 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)) |
07d6d2b8 | 1883 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); |
84e94c90 NC |
1884 | } |
1885 | else | |
1886 | h->got.offset = (bfd_vma) -1; | |
1887 | ||
1888 | if (eh->dyn_relocs == NULL) | |
1889 | return TRUE; | |
1890 | ||
1891 | /* In the shared -Bsymbolic case, discard space allocated for | |
1892 | dynamic pc-relative relocs against symbols which turn out to be | |
1893 | defined in regular objects. For the normal shared case, discard | |
1894 | space for pc-relative relocs that have become local due to symbol | |
1895 | visibility changes. */ | |
1896 | ||
0e1862bb | 1897 | if (bfd_link_pic (info)) |
84e94c90 NC |
1898 | { |
1899 | if (h->def_regular | |
07d6d2b8 AM |
1900 | && (h->forced_local |
1901 | || info->symbolic)) | |
1902 | { | |
1903 | struct elf_dyn_relocs **pp; | |
1904 | ||
1905 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL;) | |
1906 | { | |
1907 | p->count -= p->pc_count; | |
1908 | p->pc_count = 0; | |
1909 | if (p->count == 0) | |
1910 | *pp = p->next; | |
1911 | else | |
1912 | pp = &p->next; | |
1913 | } | |
1914 | } | |
84e94c90 NC |
1915 | |
1916 | /* Also discard relocs on undefined weak syms with non-default | |
1917 | visibility. */ | |
1918 | if (eh->dyn_relocs != NULL | |
1919 | && h->root.type == bfd_link_hash_undefweak) | |
1920 | { | |
1921 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
1922 | eh->dyn_relocs = NULL; | |
1923 | ||
1924 | /* Make sure undefined weak symbols are output as a dynamic | |
1925 | symbol in PIEs. */ | |
1926 | else if (h->dynindx == -1 | |
1927 | && !h->forced_local) | |
1928 | { | |
1929 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
1930 | return FALSE; | |
1931 | } | |
1932 | } | |
1933 | } | |
1934 | else | |
1935 | { | |
1936 | /* For the non-shared case, discard space for relocs against | |
07d6d2b8 AM |
1937 | symbols which turn out to need copy relocs or are not |
1938 | dynamic. */ | |
84e94c90 NC |
1939 | |
1940 | if (!h->non_got_ref | |
07d6d2b8 AM |
1941 | && ((h->def_dynamic |
1942 | && !h->def_regular) | |
1943 | || (htab->root.dynamic_sections_created | |
1944 | && (h->root.type == bfd_link_hash_undefweak | |
1945 | || h->root.type == bfd_link_hash_undefined)))) | |
1946 | { | |
1947 | /* Make sure this symbol is output as a dynamic symbol. | |
1948 | Undefined weak syms won't yet be marked as dynamic. */ | |
1949 | if (h->dynindx == -1 | |
1950 | && !h->forced_local) | |
1951 | { | |
1952 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
1953 | return FALSE; | |
1954 | } | |
1955 | ||
1956 | /* If that succeeded, we know we'll be keeping all the | |
1957 | relocs. */ | |
1958 | if (h->dynindx != -1) | |
1959 | goto keep; | |
1960 | } | |
84e94c90 NC |
1961 | |
1962 | eh->dyn_relocs = NULL; | |
1963 | ||
1964 | keep: ; | |
1965 | } | |
1966 | ||
1967 | /* Finally, allocate space. */ | |
1968 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1969 | { | |
1970 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
1971 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
1972 | } | |
1973 | ||
1974 | return TRUE; | |
1975 | } | |
1976 | ||
63c1f59d AM |
1977 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
1978 | read-only sections. */ | |
84e94c90 NC |
1979 | |
1980 | static bfd_boolean | |
63c1f59d | 1981 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p) |
84e94c90 | 1982 | { |
63c1f59d | 1983 | asection *sec; |
84e94c90 | 1984 | |
63c1f59d AM |
1985 | if (h->root.type == bfd_link_hash_indirect) |
1986 | return TRUE; | |
84e94c90 | 1987 | |
63c1f59d AM |
1988 | sec = readonly_dynrelocs (h); |
1989 | if (sec != NULL) | |
1990 | { | |
1991 | struct bfd_link_info *info = (struct bfd_link_info *) info_p; | |
84e94c90 | 1992 | |
63c1f59d AM |
1993 | info->flags |= DF_TEXTREL; |
1994 | info->callbacks->minfo | |
c1c8c1ef | 1995 | (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"), |
63c1f59d | 1996 | sec->owner, h->root.root.string, sec); |
84e94c90 | 1997 | |
63c1f59d AM |
1998 | /* Not an error, just cut short the traversal. */ |
1999 | return FALSE; | |
84e94c90 NC |
2000 | } |
2001 | return TRUE; | |
2002 | } | |
2003 | ||
2004 | /* Set the sizes of the dynamic sections. */ | |
2005 | ||
2006 | static bfd_boolean | |
2007 | lm32_elf_size_dynamic_sections (bfd *output_bfd, | |
07d6d2b8 | 2008 | struct bfd_link_info *info) |
84e94c90 NC |
2009 | { |
2010 | struct elf_lm32_link_hash_table *htab; | |
2011 | bfd *dynobj; | |
2012 | asection *s; | |
2013 | bfd_boolean relocs; | |
2014 | bfd *ibfd; | |
2015 | ||
2016 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
2017 | if (htab == NULL) |
2018 | return FALSE; | |
2019 | ||
84e94c90 NC |
2020 | dynobj = htab->root.dynobj; |
2021 | BFD_ASSERT (dynobj != NULL); | |
2022 | ||
2023 | if (htab->root.dynamic_sections_created) | |
2024 | { | |
2025 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 2026 | if (bfd_link_executable (info) && !info->nointerp) |
84e94c90 | 2027 | { |
3d4d4302 | 2028 | s = bfd_get_linker_section (dynobj, ".interp"); |
84e94c90 NC |
2029 | BFD_ASSERT (s != NULL); |
2030 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
2031 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2032 | } | |
2033 | } | |
2034 | ||
2035 | /* Set up .got offsets for local syms, and space for local dynamic | |
2036 | relocs. */ | |
c72f2fb2 | 2037 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
84e94c90 NC |
2038 | { |
2039 | bfd_signed_vma *local_got; | |
2040 | bfd_signed_vma *end_local_got; | |
2041 | bfd_size_type locsymcount; | |
2042 | Elf_Internal_Shdr *symtab_hdr; | |
2043 | asection *srel; | |
2044 | ||
2045 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
07d6d2b8 | 2046 | continue; |
84e94c90 NC |
2047 | |
2048 | for (s = ibfd->sections; s != NULL; s = s->next) | |
07d6d2b8 AM |
2049 | { |
2050 | struct elf_dyn_relocs *p; | |
2051 | ||
2052 | for (p = ((struct elf_dyn_relocs *) | |
2053 | elf_section_data (s)->local_dynrel); | |
2054 | p != NULL; | |
2055 | p = p->next) | |
2056 | { | |
2057 | if (! bfd_is_abs_section (p->sec) | |
2058 | && bfd_is_abs_section (p->sec->output_section)) | |
2059 | { | |
2060 | /* Input section has been discarded, either because | |
2061 | it is a copy of a linkonce section or due to | |
2062 | linker script /DISCARD/, so we'll be discarding | |
2063 | the relocs too. */ | |
2064 | } | |
2065 | else if (p->count != 0) | |
2066 | { | |
2067 | srel = elf_section_data (p->sec)->sreloc; | |
2068 | srel->size += p->count * sizeof (Elf32_External_Rela); | |
2069 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
2070 | info->flags |= DF_TEXTREL; | |
2071 | } | |
2072 | } | |
2073 | } | |
84e94c90 NC |
2074 | |
2075 | local_got = elf_local_got_refcounts (ibfd); | |
2076 | if (!local_got) | |
07d6d2b8 | 2077 | continue; |
84e94c90 NC |
2078 | |
2079 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2080 | locsymcount = symtab_hdr->sh_info; | |
2081 | end_local_got = local_got + locsymcount; | |
ce558b89 AM |
2082 | s = htab->root.sgot; |
2083 | srel = htab->root.srelgot; | |
84e94c90 | 2084 | for (; local_got < end_local_got; ++local_got) |
07d6d2b8 AM |
2085 | { |
2086 | if (*local_got > 0) | |
2087 | { | |
2088 | *local_got = s->size; | |
2089 | s->size += 4; | |
2090 | if (bfd_link_pic (info)) | |
2091 | srel->size += sizeof (Elf32_External_Rela); | |
2092 | } | |
2093 | else | |
2094 | *local_got = (bfd_vma) -1; | |
2095 | } | |
84e94c90 NC |
2096 | } |
2097 | ||
2098 | /* Allocate global sym .plt and .got entries, and space for global | |
2099 | sym dynamic relocs. */ | |
2100 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info); | |
2101 | ||
2102 | /* We now have determined the sizes of the various dynamic sections. | |
2103 | Allocate memory for them. */ | |
2104 | relocs = FALSE; | |
2105 | for (s = dynobj->sections; s != NULL; s = s->next) | |
2106 | { | |
2107 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
07d6d2b8 | 2108 | continue; |
84e94c90 | 2109 | |
ce558b89 | 2110 | if (s == htab->root.splt |
07d6d2b8 AM |
2111 | || s == htab->root.sgot |
2112 | || s == htab->root.sgotplt | |
84e94c90 | 2113 | || s == htab->sdynbss) |
07d6d2b8 AM |
2114 | { |
2115 | /* Strip this section if we don't need it; see the | |
2116 | comment below. */ | |
2117 | } | |
84e94c90 | 2118 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, s), ".rela")) |
07d6d2b8 AM |
2119 | { |
2120 | if (s->size != 0 && s != htab->root.srelplt) | |
2121 | relocs = TRUE; | |
2122 | ||
2123 | /* We use the reloc_count field as a counter if we need | |
2124 | to copy relocs into the output file. */ | |
2125 | s->reloc_count = 0; | |
2126 | } | |
84e94c90 NC |
2127 | else |
2128 | /* It's not one of our sections, so don't allocate space. */ | |
2129 | continue; | |
2130 | ||
2131 | if (s->size == 0) | |
07d6d2b8 AM |
2132 | { |
2133 | /* If we don't need this section, strip it from the | |
2134 | output file. This is mostly to handle .rela.bss and | |
2135 | .rela.plt. We must create both sections in | |
2136 | create_dynamic_sections, because they must be created | |
2137 | before the linker maps input sections to output | |
2138 | sections. The linker does that before | |
2139 | adjust_dynamic_symbol is called, and it is that | |
2140 | function which decides whether anything needs to go | |
2141 | into these sections. */ | |
2142 | s->flags |= SEC_EXCLUDE; | |
2143 | continue; | |
2144 | } | |
84e94c90 NC |
2145 | |
2146 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
2147 | continue; | |
2148 | ||
2149 | /* Allocate memory for the section contents. We use bfd_zalloc | |
07d6d2b8 AM |
2150 | here in case unused entries are not reclaimed before the |
2151 | section's contents are written out. This should not happen, | |
2152 | but this way if it does, we get a R_LM32_NONE reloc instead | |
2153 | of garbage. */ | |
84e94c90 NC |
2154 | s->contents = bfd_zalloc (dynobj, s->size); |
2155 | if (s->contents == NULL) | |
07d6d2b8 | 2156 | return FALSE; |
84e94c90 NC |
2157 | } |
2158 | ||
2159 | if (htab->root.dynamic_sections_created) | |
2160 | { | |
2161 | /* Add some entries to the .dynamic section. We fill in the | |
2162 | values later, in lm32_elf_finish_dynamic_sections, but we | |
2163 | must add the entries now so that we get the correct size for | |
2164 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2165 | dynamic linker and used by the debugger. */ | |
2166 | #define add_dynamic_entry(TAG, VAL) \ | |
2167 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
2168 | ||
0e1862bb | 2169 | if (bfd_link_executable (info)) |
84e94c90 NC |
2170 | { |
2171 | if (! add_dynamic_entry (DT_DEBUG, 0)) | |
2172 | return FALSE; | |
2173 | } | |
2174 | ||
ce558b89 | 2175 | if (htab->root.splt->size != 0) |
07d6d2b8 AM |
2176 | { |
2177 | if (! add_dynamic_entry (DT_PLTGOT, 0) | |
2178 | || ! add_dynamic_entry (DT_PLTRELSZ, 0) | |
2179 | || ! add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2180 | || ! add_dynamic_entry (DT_JMPREL, 0)) | |
2181 | return FALSE; | |
2182 | } | |
84e94c90 NC |
2183 | |
2184 | if (relocs) | |
07d6d2b8 AM |
2185 | { |
2186 | if (! add_dynamic_entry (DT_RELA, 0) | |
2187 | || ! add_dynamic_entry (DT_RELASZ, 0) | |
2188 | || ! add_dynamic_entry (DT_RELAENT, | |
2189 | sizeof (Elf32_External_Rela))) | |
2190 | return FALSE; | |
2191 | ||
2192 | /* If any dynamic relocs apply to a read-only section, | |
2193 | then we need a DT_TEXTREL entry. */ | |
2194 | if ((info->flags & DF_TEXTREL) == 0) | |
2195 | elf_link_hash_traverse (&htab->root, maybe_set_textrel, info); | |
2196 | ||
2197 | if ((info->flags & DF_TEXTREL) != 0) | |
2198 | { | |
2199 | if (! add_dynamic_entry (DT_TEXTREL, 0)) | |
2200 | return FALSE; | |
2201 | } | |
2202 | } | |
84e94c90 NC |
2203 | } |
2204 | #undef add_dynamic_entry | |
2205 | ||
2206 | /* Allocate .rofixup section. */ | |
2207 | if (IS_FDPIC (output_bfd)) | |
2208 | { | |
2209 | struct weak_symbol_list *list_start = NULL, *list_end = NULL; | |
2210 | int rgot_weak_count = 0; | |
2211 | int r32_count = 0; | |
2212 | int rgot_count = 0; | |
2213 | /* Look for deleted sections. */ | |
c72f2fb2 | 2214 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
07d6d2b8 AM |
2215 | { |
2216 | for (s = ibfd->sections; s != NULL; s = s->next) | |
2217 | { | |
2218 | if (s->reloc_count) | |
2219 | { | |
2220 | /* Count relocs that need .rofixup entires. */ | |
2221 | Elf_Internal_Rela *internal_relocs, *end; | |
2222 | internal_relocs = elf_section_data (s)->relocs; | |
2223 | if (internal_relocs == NULL) | |
2224 | internal_relocs = (_bfd_elf_link_read_relocs (ibfd, s, NULL, NULL, FALSE)); | |
2225 | if (internal_relocs != NULL) | |
2226 | { | |
2227 | end = internal_relocs + s->reloc_count; | |
2228 | while (internal_relocs < end) | |
2229 | { | |
2230 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2231 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
2232 | unsigned long r_symndx; | |
2233 | struct elf_link_hash_entry *h; | |
2234 | ||
2235 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2236 | sym_hashes = elf_sym_hashes (ibfd); | |
2237 | r_symndx = ELF32_R_SYM (internal_relocs->r_info); | |
2238 | h = NULL; | |
2239 | if (r_symndx < symtab_hdr->sh_info) | |
2240 | { | |
2241 | } | |
2242 | else | |
2243 | { | |
2244 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
2245 | while (h->root.type == bfd_link_hash_indirect | |
2246 | || h->root.type == bfd_link_hash_warning) | |
2247 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2248 | } | |
2249 | ||
2250 | /* Don't generate entries for weak symbols. */ | |
2251 | if (!h || (h && h->root.type != bfd_link_hash_undefweak)) | |
2252 | { | |
2253 | if (!discarded_section (s) && !((bfd_get_section_flags (ibfd, s) & SEC_ALLOC) == 0)) | |
2254 | { | |
2255 | switch (ELF32_R_TYPE (internal_relocs->r_info)) | |
2256 | { | |
2257 | case R_LM32_32: | |
2258 | r32_count++; | |
2259 | break; | |
2260 | case R_LM32_16_GOT: | |
2261 | rgot_count++; | |
2262 | break; | |
2263 | } | |
2264 | } | |
2265 | } | |
2266 | else | |
2267 | { | |
2268 | struct weak_symbol_list *current, *new_entry; | |
2269 | /* Is this symbol already in the list? */ | |
2270 | for (current = list_start; current; current = current->next) | |
2271 | { | |
2272 | if (!strcmp (current->name, h->root.root.string)) | |
2273 | break; | |
2274 | } | |
2275 | if (!current && !discarded_section (s) && (bfd_get_section_flags (ibfd, s) & SEC_ALLOC)) | |
2276 | { | |
2277 | /* Will this have an entry in the GOT. */ | |
2278 | if (ELF32_R_TYPE (internal_relocs->r_info) == R_LM32_16_GOT) | |
2279 | { | |
2280 | /* Create a new entry. */ | |
2281 | new_entry = malloc (sizeof (struct weak_symbol_list)); | |
2282 | if (!new_entry) | |
2283 | return FALSE; | |
2284 | new_entry->name = h->root.root.string; | |
2285 | new_entry->next = NULL; | |
2286 | /* Add to list */ | |
2287 | if (list_start == NULL) | |
2288 | { | |
2289 | list_start = new_entry; | |
2290 | list_end = new_entry; | |
2291 | } | |
2292 | else | |
2293 | { | |
2294 | list_end->next = new_entry; | |
2295 | list_end = new_entry; | |
2296 | } | |
2297 | /* Increase count of undefined weak symbols in the got. */ | |
2298 | rgot_weak_count++; | |
2299 | } | |
2300 | } | |
2301 | } | |
2302 | internal_relocs++; | |
2303 | } | |
2304 | } | |
2305 | else | |
2306 | return FALSE; | |
2307 | } | |
2308 | } | |
2309 | } | |
84e94c90 NC |
2310 | /* Free list. */ |
2311 | while (list_start) | |
07d6d2b8 AM |
2312 | { |
2313 | list_end = list_start->next; | |
2314 | free (list_start); | |
2315 | list_start = list_end; | |
2316 | } | |
84e94c90 NC |
2317 | |
2318 | /* Size sections. */ | |
ce558b89 AM |
2319 | lm32fdpic_fixup32_section (info)->size |
2320 | = (r32_count + (htab->root.sgot->size / 4) - rgot_weak_count + 1) * 4; | |
84e94c90 | 2321 | if (lm32fdpic_fixup32_section (info)->size == 0) |
07d6d2b8 | 2322 | lm32fdpic_fixup32_section (info)->flags |= SEC_EXCLUDE; |
84e94c90 | 2323 | else |
07d6d2b8 AM |
2324 | { |
2325 | lm32fdpic_fixup32_section (info)->contents = | |
2326 | bfd_zalloc (dynobj, lm32fdpic_fixup32_section (info)->size); | |
2327 | if (lm32fdpic_fixup32_section (info)->contents == NULL) | |
2328 | return FALSE; | |
2329 | } | |
84e94c90 NC |
2330 | } |
2331 | ||
2332 | return TRUE; | |
2333 | } | |
2334 | ||
2335 | /* Create dynamic sections when linking against a dynamic object. */ | |
2336 | ||
2337 | static bfd_boolean | |
2338 | lm32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
2339 | { | |
2340 | struct elf_lm32_link_hash_table *htab; | |
2341 | flagword flags, pltflags; | |
2342 | asection *s; | |
2343 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
2344 | int ptralign = 2; /* 32bit */ | |
2345 | ||
2346 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
2347 | if (htab == NULL) |
2348 | return FALSE; | |
84e94c90 NC |
2349 | |
2350 | /* Make sure we have a GOT - For the case where we have a dynamic object | |
2351 | but none of the relocs in check_relocs */ | |
ce558b89 | 2352 | if (!_bfd_elf_create_got_section (abfd, info)) |
84e94c90 NC |
2353 | return FALSE; |
2354 | if (IS_FDPIC (abfd) && (htab->sfixup32 == NULL)) | |
2355 | { | |
2356 | if (! create_rofixup_section (abfd, info)) | |
07d6d2b8 | 2357 | return FALSE; |
84e94c90 NC |
2358 | } |
2359 | ||
2360 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and | |
2361 | .rel[a].bss sections. */ | |
2362 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
07d6d2b8 | 2363 | | SEC_LINKER_CREATED); |
84e94c90 NC |
2364 | |
2365 | pltflags = flags; | |
2366 | pltflags |= SEC_CODE; | |
2367 | if (bed->plt_not_loaded) | |
2368 | pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); | |
2369 | if (bed->plt_readonly) | |
2370 | pltflags |= SEC_READONLY; | |
2371 | ||
3d4d4302 | 2372 | s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags); |
ce558b89 | 2373 | htab->root.splt = s; |
84e94c90 NC |
2374 | if (s == NULL |
2375 | || ! bfd_set_section_alignment (abfd, s, bed->plt_alignment)) | |
2376 | return FALSE; | |
2377 | ||
2378 | if (bed->want_plt_sym) | |
2379 | { | |
2380 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the | |
07d6d2b8 | 2381 | .plt section. */ |
84e94c90 NC |
2382 | struct bfd_link_hash_entry *bh = NULL; |
2383 | struct elf_link_hash_entry *h; | |
2384 | ||
2385 | if (! (_bfd_generic_link_add_one_symbol | |
07d6d2b8 AM |
2386 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, |
2387 | (bfd_vma) 0, NULL, FALSE, | |
2388 | get_elf_backend_data (abfd)->collect, &bh))) | |
2389 | return FALSE; | |
84e94c90 NC |
2390 | h = (struct elf_link_hash_entry *) bh; |
2391 | h->def_regular = 1; | |
2392 | h->type = STT_OBJECT; | |
2393 | htab->root.hplt = h; | |
2394 | ||
0e1862bb | 2395 | if (bfd_link_pic (info) |
07d6d2b8 AM |
2396 | && ! bfd_elf_link_record_dynamic_symbol (info, h)) |
2397 | return FALSE; | |
84e94c90 NC |
2398 | } |
2399 | ||
3d4d4302 AM |
2400 | s = bfd_make_section_anyway_with_flags (abfd, |
2401 | bed->default_use_rela_p | |
2402 | ? ".rela.plt" : ".rel.plt", | |
2403 | flags | SEC_READONLY); | |
ce558b89 | 2404 | htab->root.srelplt = s; |
84e94c90 NC |
2405 | if (s == NULL |
2406 | || ! bfd_set_section_alignment (abfd, s, ptralign)) | |
2407 | return FALSE; | |
2408 | ||
ce558b89 AM |
2409 | if (htab->root.sgot == NULL |
2410 | && !_bfd_elf_create_got_section (abfd, info)) | |
84e94c90 NC |
2411 | return FALSE; |
2412 | ||
84e94c90 NC |
2413 | if (bed->want_dynbss) |
2414 | { | |
2415 | /* The .dynbss section is a place to put symbols which are defined | |
07d6d2b8 AM |
2416 | by dynamic objects, are referenced by regular objects, and are |
2417 | not functions. We must allocate space for them in the process | |
2418 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
2419 | initialize them at run time. The linker script puts the .dynbss | |
2420 | section into the .bss section of the final image. */ | |
3d4d4302 AM |
2421 | s = bfd_make_section_anyway_with_flags (abfd, ".dynbss", |
2422 | SEC_ALLOC | SEC_LINKER_CREATED); | |
84e94c90 NC |
2423 | htab->sdynbss = s; |
2424 | if (s == NULL) | |
07d6d2b8 | 2425 | return FALSE; |
84e94c90 | 2426 | /* The .rel[a].bss section holds copy relocs. This section is not |
07d6d2b8 AM |
2427 | normally needed. We need to create it here, though, so that the |
2428 | linker will map it to an output section. We can't just create it | |
2429 | only if we need it, because we will not know whether we need it | |
2430 | until we have seen all the input files, and the first time the | |
2431 | main linker code calls BFD after examining all the input files | |
2432 | (size_dynamic_sections) the input sections have already been | |
2433 | mapped to the output sections. If the section turns out not to | |
2434 | be needed, we can discard it later. We will never need this | |
2435 | section when generating a shared object, since they do not use | |
2436 | copy relocs. */ | |
0e1862bb | 2437 | if (! bfd_link_pic (info)) |
07d6d2b8 AM |
2438 | { |
2439 | s = bfd_make_section_anyway_with_flags (abfd, | |
3d4d4302 AM |
2440 | (bed->default_use_rela_p |
2441 | ? ".rela.bss" : ".rel.bss"), | |
2442 | flags | SEC_READONLY); | |
07d6d2b8 AM |
2443 | htab->srelbss = s; |
2444 | if (s == NULL | |
2445 | || ! bfd_set_section_alignment (abfd, s, ptralign)) | |
2446 | return FALSE; | |
2447 | } | |
84e94c90 NC |
2448 | } |
2449 | ||
2450 | return TRUE; | |
2451 | } | |
2452 | ||
2453 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
2454 | ||
2455 | static void | |
2456 | lm32_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
07d6d2b8 AM |
2457 | struct elf_link_hash_entry *dir, |
2458 | struct elf_link_hash_entry *ind) | |
84e94c90 NC |
2459 | { |
2460 | struct elf_lm32_link_hash_entry * edir; | |
2461 | struct elf_lm32_link_hash_entry * eind; | |
2462 | ||
2463 | edir = (struct elf_lm32_link_hash_entry *) dir; | |
2464 | eind = (struct elf_lm32_link_hash_entry *) ind; | |
2465 | ||
2466 | if (eind->dyn_relocs != NULL) | |
2467 | { | |
2468 | if (edir->dyn_relocs != NULL) | |
07d6d2b8 AM |
2469 | { |
2470 | struct elf_dyn_relocs **pp; | |
2471 | struct elf_dyn_relocs *p; | |
2472 | ||
2473 | /* Add reloc counts against the indirect sym to the direct sym | |
2474 | list. Merge any entries against the same section. */ | |
2475 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL;) | |
2476 | { | |
2477 | struct elf_dyn_relocs *q; | |
2478 | ||
2479 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
2480 | if (q->sec == p->sec) | |
2481 | { | |
2482 | q->pc_count += p->pc_count; | |
2483 | q->count += p->count; | |
2484 | *pp = p->next; | |
2485 | break; | |
2486 | } | |
2487 | if (q == NULL) | |
2488 | pp = &p->next; | |
2489 | } | |
2490 | *pp = edir->dyn_relocs; | |
2491 | } | |
84e94c90 NC |
2492 | |
2493 | edir->dyn_relocs = eind->dyn_relocs; | |
2494 | eind->dyn_relocs = NULL; | |
2495 | } | |
2496 | ||
2497 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
2498 | } | |
2499 | ||
2500 | static bfd_boolean | |
04c3a755 | 2501 | lm32_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info) |
84e94c90 | 2502 | { |
0e1862bb | 2503 | if (!bfd_link_relocatable (info)) |
84e94c90 | 2504 | { |
04c3a755 NS |
2505 | if (!bfd_elf_stack_segment_size (output_bfd, info, |
2506 | "__stacksize", DEFAULT_STACK_SIZE)) | |
2507 | return FALSE; | |
84e94c90 | 2508 | |
84e94c90 | 2509 | asection *sec = bfd_get_section_by_name (output_bfd, ".stack"); |
84e94c90 | 2510 | if (sec) |
04c3a755 | 2511 | sec->size = info->stacksize >= 0 ? info->stacksize : 0; |
84e94c90 NC |
2512 | } |
2513 | ||
2514 | return TRUE; | |
2515 | } | |
2516 | ||
84e94c90 NC |
2517 | static bfd_boolean |
2518 | lm32_elf_fdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
2519 | { | |
2520 | unsigned i; | |
2521 | ||
2522 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2523 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
2524 | return TRUE; | |
2525 | ||
e2349352 | 2526 | if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd)) |
84e94c90 NC |
2527 | return FALSE; |
2528 | ||
2529 | if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr | |
2530 | || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr) | |
2531 | return TRUE; | |
2532 | ||
2533 | /* Copy the stack size. */ | |
2534 | for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++) | |
2535 | if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK) | |
2536 | { | |
2537 | Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i]; | |
2538 | ||
2539 | for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++) | |
2540 | if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK) | |
2541 | { | |
2542 | memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr)); | |
2543 | ||
2544 | /* Rewrite the phdrs, since we're only called after they were first written. */ | |
2545 | if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd) | |
2546 | ->s->sizeof_ehdr, SEEK_SET) != 0 | |
2547 | || get_elf_backend_data (obfd)->s->write_out_phdrs (obfd, elf_tdata (obfd)->phdr, | |
2548 | elf_elfheader (obfd)->e_phnum) != 0) | |
2549 | return FALSE; | |
2550 | break; | |
2551 | } | |
2552 | ||
2553 | break; | |
2554 | } | |
2555 | ||
2556 | return TRUE; | |
2557 | } | |
2558 | ||
2559 | ||
07d6d2b8 | 2560 | #define ELF_ARCH bfd_arch_lm32 |
ae95ffa6 | 2561 | #define ELF_TARGET_ID LM32_ELF_DATA |
07d6d2b8 AM |
2562 | #define ELF_MACHINE_CODE EM_LATTICEMICO32 |
2563 | #define ELF_MAXPAGESIZE 0x1000 | |
2564 | ||
2565 | #define TARGET_BIG_SYM lm32_elf32_vec | |
2566 | #define TARGET_BIG_NAME "elf32-lm32" | |
2567 | ||
2568 | #define bfd_elf32_bfd_reloc_type_lookup lm32_reloc_type_lookup | |
2569 | #define bfd_elf32_bfd_reloc_name_lookup lm32_reloc_name_lookup | |
2570 | #define elf_info_to_howto lm32_info_to_howto_rela | |
2571 | #define elf_info_to_howto_rel 0 | |
2572 | #define elf_backend_rela_normal 1 | |
2573 | #define elf_backend_object_p lm32_elf_object_p | |
2574 | #define elf_backend_final_write_processing lm32_elf_final_write_processing | |
04c3a755 | 2575 | #define elf_backend_stack_align 8 |
07d6d2b8 AM |
2576 | #define elf_backend_can_gc_sections 1 |
2577 | #define elf_backend_can_refcount 1 | |
2578 | #define elf_backend_gc_mark_hook lm32_elf_gc_mark_hook | |
2579 | #define elf_backend_plt_readonly 1 | |
2580 | #define elf_backend_want_got_plt 1 | |
2581 | #define elf_backend_want_plt_sym 0 | |
2582 | #define elf_backend_got_header_size 12 | |
64f52338 | 2583 | #define elf_backend_dtrel_excludes_plt 1 |
07d6d2b8 AM |
2584 | #define bfd_elf32_bfd_link_hash_table_create lm32_elf_link_hash_table_create |
2585 | #define elf_backend_check_relocs lm32_elf_check_relocs | |
2586 | #define elf_backend_reloc_type_class lm32_elf_reloc_type_class | |
2587 | #define elf_backend_copy_indirect_symbol lm32_elf_copy_indirect_symbol | |
2588 | #define elf_backend_size_dynamic_sections lm32_elf_size_dynamic_sections | |
d00dd7dc | 2589 | #define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all |
07d6d2b8 AM |
2590 | #define elf_backend_create_dynamic_sections lm32_elf_create_dynamic_sections |
2591 | #define elf_backend_finish_dynamic_sections lm32_elf_finish_dynamic_sections | |
2592 | #define elf_backend_adjust_dynamic_symbol lm32_elf_adjust_dynamic_symbol | |
2593 | #define elf_backend_finish_dynamic_symbol lm32_elf_finish_dynamic_symbol | |
2594 | #define elf_backend_relocate_section lm32_elf_relocate_section | |
84e94c90 NC |
2595 | |
2596 | #include "elf32-target.h" | |
2597 | ||
2598 | #undef ELF_MAXPAGESIZE | |
2599 | #define ELF_MAXPAGESIZE 0x4000 | |
2600 | ||
2601 | ||
2602 | #undef TARGET_BIG_SYM | |
07d6d2b8 AM |
2603 | #define TARGET_BIG_SYM lm32_elf32_fdpic_vec |
2604 | #undef TARGET_BIG_NAME | |
84e94c90 NC |
2605 | #define TARGET_BIG_NAME "elf32-lm32fdpic" |
2606 | #undef elf32_bed | |
2607 | #define elf32_bed elf32_lm32fdpic_bed | |
2608 | ||
07d6d2b8 AM |
2609 | #undef elf_backend_always_size_sections |
2610 | #define elf_backend_always_size_sections lm32_elf_always_size_sections | |
2611 | #undef bfd_elf32_bfd_copy_private_bfd_data | |
2612 | #define bfd_elf32_bfd_copy_private_bfd_data lm32_elf_fdpic_copy_private_bfd_data | |
84e94c90 NC |
2613 | |
2614 | #include "elf32-target.h" |