Commit | Line | Data |
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84e94c90 | 1 | /* Lattice Mico32-specific support for 32-bit ELF |
b3adc24a | 2 | Copyright (C) 2008-2020 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; | |
986f0783 | 135 | size_t amt = sizeof (struct elf_lm32_link_hash_table); |
84e94c90 | 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 |
fd361982 | 198 | || !bfd_set_section_alignment (lm32fdpic_fixup32_section (info), 2)) |
84e94c90 NC |
199 | return FALSE; |
200 | ||
201 | return TRUE; | |
202 | } | |
203 | ||
204 | static reloc_howto_type lm32_elf_howto_table [] = | |
205 | { | |
206 | /* This reloc does nothing. */ | |
07d6d2b8 AM |
207 | HOWTO (R_LM32_NONE, /* type */ |
208 | 0, /* rightshift */ | |
209 | 3, /* size (0 = byte, 1 = short, 2 = long) */ | |
210 | 0, /* bitsize */ | |
211 | FALSE, /* pc_relative */ | |
212 | 0, /* bitpos */ | |
213 | complain_overflow_dont, /* complain_on_overflow */ | |
214 | bfd_elf_generic_reloc, /* special_function */ | |
215 | "R_LM32_NONE", /* name */ | |
216 | FALSE, /* partial_inplace */ | |
217 | 0, /* src_mask */ | |
218 | 0, /* dst_mask */ | |
219 | FALSE), /* pcrel_offset */ | |
84e94c90 NC |
220 | |
221 | /* An 8 bit absolute relocation. */ | |
07d6d2b8 AM |
222 | HOWTO (R_LM32_8, /* type */ |
223 | 0, /* rightshift */ | |
224 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
225 | 8, /* bitsize */ | |
226 | FALSE, /* pc_relative */ | |
227 | 0, /* bitpos */ | |
228 | complain_overflow_bitfield,/* complain_on_overflow */ | |
229 | bfd_elf_generic_reloc, /* special_function */ | |
230 | "R_LM32_8", /* name */ | |
231 | FALSE, /* partial_inplace */ | |
232 | 0, /* src_mask */ | |
233 | 0xff, /* dst_mask */ | |
234 | FALSE), /* pcrel_offset */ | |
84e94c90 NC |
235 | |
236 | /* A 16 bit absolute relocation. */ | |
07d6d2b8 AM |
237 | HOWTO (R_LM32_16, /* type */ |
238 | 0, /* rightshift */ | |
239 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
240 | 16, /* bitsize */ | |
241 | FALSE, /* pc_relative */ | |
242 | 0, /* bitpos */ | |
243 | complain_overflow_bitfield,/* complain_on_overflow */ | |
244 | bfd_elf_generic_reloc, /* special_function */ | |
245 | "R_LM32_16", /* name */ | |
246 | FALSE, /* partial_inplace */ | |
247 | 0, /* src_mask */ | |
248 | 0xffff, /* dst_mask */ | |
249 | FALSE), /* pcrel_offset */ | |
84e94c90 NC |
250 | |
251 | /* A 32 bit absolute relocation. */ | |
07d6d2b8 AM |
252 | HOWTO (R_LM32_32, /* type */ |
253 | 0, /* rightshift */ | |
254 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
255 | 32, /* bitsize */ | |
256 | FALSE, /* pc_relative */ | |
257 | 0, /* bitpos */ | |
258 | complain_overflow_bitfield,/* complain_on_overflow */ | |
259 | bfd_elf_generic_reloc, /* special_function */ | |
260 | "R_LM32_32", /* name */ | |
261 | FALSE, /* partial_inplace */ | |
262 | 0, /* src_mask */ | |
263 | 0xffffffff, /* dst_mask */ | |
264 | FALSE), /* pcrel_offset */ | |
265 | ||
266 | HOWTO (R_LM32_HI16, /* type */ | |
267 | 16, /* rightshift */ | |
268 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
269 | 16, /* bitsize */ | |
270 | FALSE, /* pc_relative */ | |
271 | 0, /* bitpos */ | |
272 | complain_overflow_bitfield,/* complain_on_overflow */ | |
273 | bfd_elf_generic_reloc, /* special_function */ | |
274 | "R_LM32_HI16", /* name */ | |
275 | FALSE, /* partial_inplace */ | |
276 | 0, /* src_mask */ | |
277 | 0xffff, /* dst_mask */ | |
278 | FALSE), /* pcrel_offset */ | |
279 | ||
280 | HOWTO (R_LM32_LO16, /* type */ | |
281 | 0, /* rightshift */ | |
282 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
283 | 16, /* bitsize */ | |
284 | FALSE, /* pc_relative */ | |
285 | 0, /* bitpos */ | |
286 | complain_overflow_dont, /* complain_on_overflow */ | |
287 | bfd_elf_generic_reloc, /* special_function */ | |
288 | "R_LM32_LO16", /* name */ | |
289 | FALSE, /* partial_inplace */ | |
290 | 0, /* src_mask */ | |
291 | 0xffff, /* dst_mask */ | |
292 | FALSE), /* pcrel_offset */ | |
293 | ||
294 | HOWTO (R_LM32_GPREL16, /* type */ | |
295 | 0, /* rightshift */ | |
296 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
297 | 16, /* bitsize */ | |
298 | FALSE, /* pc_relative */ | |
299 | 0, /* bitpos */ | |
300 | complain_overflow_dont, /* complain_on_overflow */ | |
301 | lm32_elf_gprel_reloc, /* special_function */ | |
302 | "R_LM32_GPREL16", /* name */ | |
303 | FALSE, /* partial_inplace */ | |
304 | 0, /* src_mask */ | |
305 | 0xffff, /* dst_mask */ | |
306 | FALSE), /* pcrel_offset */ | |
307 | ||
308 | HOWTO (R_LM32_CALL, /* type */ | |
309 | 2, /* rightshift */ | |
310 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
311 | 26, /* bitsize */ | |
312 | TRUE, /* pc_relative */ | |
313 | 0, /* bitpos */ | |
314 | complain_overflow_signed, /* complain_on_overflow */ | |
315 | bfd_elf_generic_reloc, /* special_function */ | |
316 | "R_LM32_CALL", /* name */ | |
317 | FALSE, /* partial_inplace */ | |
318 | 0, /* src_mask */ | |
319 | 0x3ffffff, /* dst_mask */ | |
320 | TRUE), /* pcrel_offset */ | |
321 | ||
322 | HOWTO (R_LM32_BRANCH, /* type */ | |
323 | 2, /* rightshift */ | |
324 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
325 | 16, /* bitsize */ | |
326 | TRUE, /* pc_relative */ | |
327 | 0, /* bitpos */ | |
328 | complain_overflow_signed, /* complain_on_overflow */ | |
329 | bfd_elf_generic_reloc, /* special_function */ | |
330 | "R_LM32_BRANCH", /* name */ | |
331 | FALSE, /* partial_inplace */ | |
332 | 0, /* src_mask */ | |
333 | 0xffff, /* dst_mask */ | |
334 | TRUE), /* pcrel_offset */ | |
84e94c90 NC |
335 | |
336 | /* GNU extension to record C++ vtable hierarchy. */ | |
07d6d2b8 AM |
337 | HOWTO (R_LM32_GNU_VTINHERIT, /* type */ |
338 | 0, /* rightshift */ | |
339 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
340 | 0, /* bitsize */ | |
341 | FALSE, /* pc_relative */ | |
342 | 0, /* bitpos */ | |
343 | complain_overflow_dont, /* complain_on_overflow */ | |
344 | NULL, /* special_function */ | |
345 | "R_LM32_GNU_VTINHERIT", /* name */ | |
346 | FALSE, /* partial_inplace */ | |
347 | 0, /* src_mask */ | |
348 | 0, /* dst_mask */ | |
349 | FALSE), /* pcrel_offset */ | |
84e94c90 NC |
350 | |
351 | /* GNU extension to record C++ vtable member usage. */ | |
07d6d2b8 AM |
352 | HOWTO (R_LM32_GNU_VTENTRY, /* type */ |
353 | 0, /* rightshift */ | |
354 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
355 | 0, /* bitsize */ | |
356 | FALSE, /* pc_relative */ | |
357 | 0, /* bitpos */ | |
358 | complain_overflow_dont, /* complain_on_overflow */ | |
359 | _bfd_elf_rel_vtable_reloc_fn,/* special_function */ | |
360 | "R_LM32_GNU_VTENTRY", /* name */ | |
361 | FALSE, /* partial_inplace */ | |
362 | 0, /* src_mask */ | |
363 | 0, /* dst_mask */ | |
364 | FALSE), /* pcrel_offset */ | |
365 | ||
366 | HOWTO (R_LM32_16_GOT, /* type */ | |
367 | 0, /* rightshift */ | |
368 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
369 | 16, /* bitsize */ | |
370 | FALSE, /* pc_relative */ | |
371 | 0, /* bitpos */ | |
372 | complain_overflow_signed, /* complain_on_overflow */ | |
373 | bfd_elf_generic_reloc, /* special_function */ | |
374 | "R_LM32_16_GOT", /* name */ | |
375 | FALSE, /* partial_inplace */ | |
376 | 0, /* src_mask */ | |
377 | 0xffff, /* dst_mask */ | |
378 | FALSE), /* pcrel_offset */ | |
379 | ||
380 | HOWTO (R_LM32_GOTOFF_HI16, /* type */ | |
381 | 16, /* rightshift */ | |
382 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
383 | 16, /* bitsize */ | |
384 | FALSE, /* pc_relative */ | |
385 | 0, /* bitpos */ | |
386 | complain_overflow_dont, /* complain_on_overflow */ | |
387 | bfd_elf_generic_reloc, /* special_function */ | |
388 | "R_LM32_GOTOFF_HI16", /* name */ | |
389 | FALSE, /* partial_inplace */ | |
390 | 0xffff, /* src_mask */ | |
391 | 0xffff, /* dst_mask */ | |
392 | FALSE), /* pcrel_offset */ | |
393 | ||
394 | HOWTO (R_LM32_GOTOFF_LO16, /* type */ | |
395 | 0, /* rightshift */ | |
396 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
397 | 16, /* bitsize */ | |
398 | FALSE, /* pc_relative */ | |
399 | 0, /* bitpos */ | |
400 | complain_overflow_dont, /* complain_on_overflow */ | |
401 | bfd_elf_generic_reloc, /* special_function */ | |
402 | "R_LM32_GOTOFF_LO16", /* name */ | |
403 | FALSE, /* partial_inplace */ | |
404 | 0xffff, /* src_mask */ | |
405 | 0xffff, /* dst_mask */ | |
406 | FALSE), /* pcrel_offset */ | |
84e94c90 NC |
407 | |
408 | HOWTO (R_LM32_COPY, /* type */ | |
409 | 0, /* rightshift */ | |
410 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
411 | 32, /* bitsize */ | |
412 | FALSE, /* pc_relative */ | |
413 | 0, /* bitpos */ | |
414 | complain_overflow_bitfield, /* complain_on_overflow */ | |
415 | bfd_elf_generic_reloc, /* special_function */ | |
416 | "R_LM32_COPY", /* name */ | |
417 | FALSE, /* partial_inplace */ | |
418 | 0xffffffff, /* src_mask */ | |
419 | 0xffffffff, /* dst_mask */ | |
420 | FALSE), /* pcrel_offset */ | |
421 | ||
422 | HOWTO (R_LM32_GLOB_DAT, /* type */ | |
423 | 0, /* rightshift */ | |
424 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
425 | 32, /* bitsize */ | |
426 | FALSE, /* pc_relative */ | |
427 | 0, /* bitpos */ | |
428 | complain_overflow_bitfield, /* complain_on_overflow */ | |
429 | bfd_elf_generic_reloc, /* special_function */ | |
430 | "R_LM32_GLOB_DAT", /* name */ | |
431 | FALSE, /* partial_inplace */ | |
432 | 0xffffffff, /* src_mask */ | |
433 | 0xffffffff, /* dst_mask */ | |
434 | FALSE), /* pcrel_offset */ | |
435 | ||
436 | HOWTO (R_LM32_JMP_SLOT, /* type */ | |
437 | 0, /* rightshift */ | |
438 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
439 | 32, /* bitsize */ | |
440 | FALSE, /* pc_relative */ | |
441 | 0, /* bitpos */ | |
442 | complain_overflow_bitfield, /* complain_on_overflow */ | |
443 | bfd_elf_generic_reloc, /* special_function */ | |
444 | "R_LM32_JMP_SLOT", /* name */ | |
445 | FALSE, /* partial_inplace */ | |
446 | 0xffffffff, /* src_mask */ | |
447 | 0xffffffff, /* dst_mask */ | |
448 | FALSE), /* pcrel_offset */ | |
449 | ||
450 | HOWTO (R_LM32_RELATIVE, /* type */ | |
451 | 0, /* rightshift */ | |
452 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
453 | 32, /* bitsize */ | |
454 | FALSE, /* pc_relative */ | |
455 | 0, /* bitpos */ | |
456 | complain_overflow_bitfield, /* complain_on_overflow */ | |
457 | bfd_elf_generic_reloc, /* special_function */ | |
458 | "R_LM32_RELATIVE", /* name */ | |
459 | FALSE, /* partial_inplace */ | |
460 | 0xffffffff, /* src_mask */ | |
461 | 0xffffffff, /* dst_mask */ | |
462 | FALSE), /* pcrel_offset */ | |
463 | ||
464 | }; | |
465 | ||
466 | /* Map BFD reloc types to lm32 ELF reloc types. */ | |
467 | ||
468 | struct lm32_reloc_map | |
469 | { | |
470 | bfd_reloc_code_real_type bfd_reloc_val; | |
471 | unsigned char elf_reloc_val; | |
472 | }; | |
473 | ||
474 | static const struct lm32_reloc_map lm32_reloc_map[] = | |
475 | { | |
07d6d2b8 AM |
476 | { BFD_RELOC_NONE, R_LM32_NONE }, |
477 | { BFD_RELOC_8, R_LM32_8 }, | |
478 | { BFD_RELOC_16, R_LM32_16 }, | |
479 | { BFD_RELOC_32, R_LM32_32 }, | |
480 | { BFD_RELOC_HI16, R_LM32_HI16 }, | |
481 | { BFD_RELOC_LO16, R_LM32_LO16 }, | |
482 | { BFD_RELOC_GPREL16, R_LM32_GPREL16 }, | |
483 | { BFD_RELOC_LM32_CALL, R_LM32_CALL }, | |
484 | { BFD_RELOC_LM32_BRANCH, R_LM32_BRANCH }, | |
485 | { BFD_RELOC_VTABLE_INHERIT, R_LM32_GNU_VTINHERIT }, | |
486 | { BFD_RELOC_VTABLE_ENTRY, R_LM32_GNU_VTENTRY }, | |
487 | { BFD_RELOC_LM32_16_GOT, R_LM32_16_GOT }, | |
84e94c90 NC |
488 | { BFD_RELOC_LM32_GOTOFF_HI16, R_LM32_GOTOFF_HI16 }, |
489 | { BFD_RELOC_LM32_GOTOFF_LO16, R_LM32_GOTOFF_LO16 }, | |
07d6d2b8 AM |
490 | { BFD_RELOC_LM32_COPY, R_LM32_COPY }, |
491 | { BFD_RELOC_LM32_GLOB_DAT, R_LM32_GLOB_DAT }, | |
492 | { BFD_RELOC_LM32_JMP_SLOT, R_LM32_JMP_SLOT }, | |
493 | { BFD_RELOC_LM32_RELATIVE, R_LM32_RELATIVE }, | |
84e94c90 NC |
494 | }; |
495 | ||
496 | static reloc_howto_type * | |
497 | lm32_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
07d6d2b8 | 498 | bfd_reloc_code_real_type code) |
84e94c90 NC |
499 | { |
500 | unsigned int i; | |
501 | ||
502 | for (i = 0; i < sizeof (lm32_reloc_map) / sizeof (lm32_reloc_map[0]); i++) | |
503 | if (lm32_reloc_map[i].bfd_reloc_val == code) | |
504 | return &lm32_elf_howto_table[lm32_reloc_map[i].elf_reloc_val]; | |
505 | return NULL; | |
506 | } | |
507 | ||
508 | static reloc_howto_type * | |
509 | lm32_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
510 | const char *r_name) | |
511 | { | |
512 | unsigned int i; | |
513 | ||
514 | for (i = 0; | |
515 | i < sizeof (lm32_elf_howto_table) / sizeof (lm32_elf_howto_table[0]); | |
516 | i++) | |
517 | if (lm32_elf_howto_table[i].name != NULL | |
518 | && strcasecmp (lm32_elf_howto_table[i].name, r_name) == 0) | |
519 | return &lm32_elf_howto_table[i]; | |
520 | ||
521 | return NULL; | |
522 | } | |
523 | ||
524 | ||
525 | /* Set the howto pointer for an Lattice Mico32 ELF reloc. */ | |
526 | ||
f3185997 | 527 | static bfd_boolean |
0aa13fee | 528 | lm32_info_to_howto_rela (bfd *abfd, |
07d6d2b8 AM |
529 | arelent *cache_ptr, |
530 | Elf_Internal_Rela *dst) | |
84e94c90 NC |
531 | { |
532 | unsigned int r_type; | |
533 | ||
534 | r_type = ELF32_R_TYPE (dst->r_info); | |
5860e3f8 NC |
535 | if (r_type >= (unsigned int) R_LM32_max) |
536 | { | |
695344c0 | 537 | /* xgettext:c-format */ |
0aa13fee AM |
538 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
539 | abfd, r_type); | |
f3185997 NC |
540 | bfd_set_error (bfd_error_bad_value); |
541 | return FALSE; | |
5860e3f8 | 542 | } |
84e94c90 | 543 | cache_ptr->howto = &lm32_elf_howto_table[r_type]; |
f3185997 | 544 | return TRUE; |
84e94c90 NC |
545 | } |
546 | ||
547 | /* Set the right machine number for an Lattice Mico32 ELF file. */ | |
548 | ||
549 | static bfd_boolean | |
550 | lm32_elf_object_p (bfd *abfd) | |
551 | { | |
552 | return bfd_default_set_arch_mach (abfd, bfd_arch_lm32, bfd_mach_lm32); | |
553 | } | |
554 | ||
555 | /* Set machine type flags just before file is written out. */ | |
556 | ||
cc364be6 AM |
557 | static bfd_boolean |
558 | lm32_elf_final_write_processing (bfd *abfd) | |
84e94c90 NC |
559 | { |
560 | elf_elfheader (abfd)->e_machine = EM_LATTICEMICO32; | |
561 | elf_elfheader (abfd)->e_flags &=~ EF_LM32_MACH; | |
562 | switch (bfd_get_mach (abfd)) | |
563 | { | |
564 | case bfd_mach_lm32: | |
07d6d2b8 AM |
565 | elf_elfheader (abfd)->e_flags |= E_LM32_MACH; |
566 | break; | |
84e94c90 | 567 | default: |
07d6d2b8 | 568 | abort (); |
84e94c90 | 569 | } |
cc364be6 | 570 | return _bfd_elf_final_write_processing (abfd); |
84e94c90 NC |
571 | } |
572 | ||
573 | /* Set the GP value for OUTPUT_BFD. Returns FALSE if this is a | |
574 | dangerous relocation. */ | |
575 | ||
576 | static bfd_boolean | |
577 | lm32_elf_assign_gp (bfd *output_bfd, bfd_vma *pgp) | |
578 | { | |
579 | unsigned int count; | |
580 | asymbol **sym; | |
581 | unsigned int i; | |
582 | ||
583 | /* If we've already figured out what GP will be, just return it. */ | |
584 | *pgp = _bfd_get_gp_value (output_bfd); | |
585 | if (*pgp) | |
586 | return TRUE; | |
587 | ||
588 | count = bfd_get_symcount (output_bfd); | |
589 | sym = bfd_get_outsymbols (output_bfd); | |
590 | ||
591 | /* The linker script will have created a symbol named `_gp' with the | |
592 | appropriate value. */ | |
593 | if (sym == NULL) | |
594 | i = count; | |
595 | else | |
596 | { | |
597 | for (i = 0; i < count; i++, sym++) | |
598 | { | |
599 | const char *name; | |
600 | ||
601 | name = bfd_asymbol_name (*sym); | |
602 | if (*name == '_' && strcmp (name, "_gp") == 0) | |
603 | { | |
604 | *pgp = bfd_asymbol_value (*sym); | |
605 | _bfd_set_gp_value (output_bfd, *pgp); | |
606 | break; | |
607 | } | |
608 | } | |
609 | } | |
610 | ||
611 | if (i >= count) | |
612 | { | |
613 | /* Only get the error once. */ | |
614 | *pgp = 4; | |
615 | _bfd_set_gp_value (output_bfd, *pgp); | |
616 | return FALSE; | |
617 | } | |
618 | ||
619 | return TRUE; | |
620 | } | |
621 | ||
622 | /* We have to figure out the gp value, so that we can adjust the | |
623 | symbol value correctly. We look up the symbol _gp in the output | |
624 | BFD. If we can't find it, we're stuck. We cache it in the ELF | |
625 | target data. We don't need to adjust the symbol value for an | |
626 | external symbol if we are producing relocatable output. */ | |
627 | ||
628 | static bfd_reloc_status_type | |
629 | lm32_elf_final_gp (bfd *output_bfd, asymbol *symbol, bfd_boolean relocatable, | |
07d6d2b8 | 630 | char **error_message, bfd_vma *pgp) |
84e94c90 NC |
631 | { |
632 | if (bfd_is_und_section (symbol->section) && !relocatable) | |
633 | { | |
634 | *pgp = 0; | |
635 | return bfd_reloc_undefined; | |
636 | } | |
637 | ||
638 | *pgp = _bfd_get_gp_value (output_bfd); | |
639 | if (*pgp == 0 && (!relocatable || (symbol->flags & BSF_SECTION_SYM) != 0)) | |
640 | { | |
641 | if (relocatable) | |
642 | { | |
643 | /* Make up a value. */ | |
644 | *pgp = symbol->section->output_section->vma + 0x4000; | |
645 | _bfd_set_gp_value (output_bfd, *pgp); | |
646 | } | |
647 | else if (!lm32_elf_assign_gp (output_bfd, pgp)) | |
648 | { | |
649 | *error_message = | |
650 | (char *) | |
651 | _("global pointer relative relocation when _gp not defined"); | |
652 | return bfd_reloc_dangerous; | |
653 | } | |
654 | } | |
655 | ||
656 | return bfd_reloc_ok; | |
657 | } | |
658 | ||
659 | static bfd_reloc_status_type | |
660 | lm32_elf_do_gprel_relocate (bfd *abfd, | |
661 | reloc_howto_type *howto, | |
662 | asection *input_section ATTRIBUTE_UNUSED, | |
663 | bfd_byte *data, | |
664 | bfd_vma offset, | |
665 | bfd_vma symbol_value, | |
666 | bfd_vma addend) | |
667 | { | |
668 | return _bfd_final_link_relocate (howto, abfd, input_section, | |
669 | data, offset, symbol_value, addend); | |
670 | } | |
671 | ||
672 | static bfd_reloc_status_type | |
673 | lm32_elf_gprel_reloc (bfd *abfd, | |
674 | arelent *reloc_entry, | |
675 | asymbol *symbol, | |
676 | void *data, | |
677 | asection *input_section, | |
678 | bfd *output_bfd, | |
679 | char **msg) | |
680 | { | |
681 | bfd_vma relocation; | |
682 | bfd_vma gp; | |
683 | bfd_reloc_status_type r; | |
684 | ||
685 | if (output_bfd != (bfd *) NULL | |
686 | && (symbol->flags & BSF_SECTION_SYM) == 0 | |
687 | && (!reloc_entry->howto->partial_inplace || reloc_entry->addend == 0)) | |
688 | { | |
689 | reloc_entry->address += input_section->output_offset; | |
690 | return bfd_reloc_ok; | |
691 | } | |
692 | ||
693 | if (output_bfd != NULL) | |
694 | return bfd_reloc_ok; | |
695 | ||
696 | relocation = symbol->value | |
697 | + symbol->section->output_section->vma + symbol->section->output_offset; | |
698 | ||
699 | if ((r = | |
700 | lm32_elf_final_gp (abfd, symbol, FALSE, msg, &gp)) == bfd_reloc_ok) | |
701 | { | |
702 | relocation = relocation + reloc_entry->addend - gp; | |
703 | reloc_entry->addend = 0; | |
704 | if ((signed) relocation < -32768 || (signed) relocation > 32767) | |
705 | { | |
706 | *msg = _("global pointer relative address out of range"); | |
707 | r = bfd_reloc_outofrange; | |
708 | } | |
709 | else | |
710 | { | |
711 | r = lm32_elf_do_gprel_relocate (abfd, reloc_entry->howto, | |
712 | input_section, | |
713 | data, reloc_entry->address, | |
714 | relocation, reloc_entry->addend); | |
715 | } | |
716 | } | |
717 | ||
718 | return r; | |
719 | } | |
720 | ||
721 | /* Find the segment number in which OSEC, and output section, is | |
722 | located. */ | |
723 | ||
724 | static unsigned | |
725 | _lm32fdpic_osec_to_segment (bfd *output_bfd, asection *osec) | |
726 | { | |
727 | struct elf_segment_map *m; | |
728 | Elf_Internal_Phdr *p; | |
729 | ||
730 | /* Find the segment that contains the output_section. */ | |
12bd6957 | 731 | for (m = elf_seg_map (output_bfd), p = elf_tdata (output_bfd)->phdr; |
84e94c90 NC |
732 | m != NULL; |
733 | m = m->next, p++) | |
734 | { | |
735 | int i; | |
736 | ||
737 | for (i = m->count - 1; i >= 0; i--) | |
738 | if (m->sections[i] == osec) | |
739 | break; | |
740 | ||
741 | if (i >= 0) | |
742 | break; | |
743 | } | |
744 | ||
745 | return p - elf_tdata (output_bfd)->phdr; | |
746 | } | |
747 | ||
748 | /* Determine if an output section is read-only. */ | |
749 | ||
750 | inline static bfd_boolean | |
751 | _lm32fdpic_osec_readonly_p (bfd *output_bfd, asection *osec) | |
752 | { | |
753 | unsigned seg = _lm32fdpic_osec_to_segment (output_bfd, osec); | |
754 | ||
755 | return ! (elf_tdata (output_bfd)->phdr[seg].p_flags & PF_W); | |
756 | } | |
757 | ||
758 | /* Relocate a section */ | |
759 | ||
760 | static bfd_boolean | |
761 | lm32_elf_relocate_section (bfd *output_bfd, | |
07d6d2b8 AM |
762 | struct bfd_link_info *info, |
763 | bfd *input_bfd, | |
764 | asection *input_section, | |
765 | bfd_byte *contents, | |
766 | Elf_Internal_Rela *relocs, | |
767 | Elf_Internal_Sym *local_syms, | |
768 | asection **local_sections) | |
84e94c90 NC |
769 | { |
770 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
771 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); | |
772 | Elf_Internal_Rela *rel, *relend; | |
84e94c90 | 773 | struct elf_lm32_link_hash_table *htab = lm32_elf_hash_table (info); |
84e94c90 | 774 | bfd_vma *local_got_offsets; |
c7e2358a | 775 | asection *sgot; |
84e94c90 | 776 | |
4dfe6ac6 NC |
777 | if (htab == NULL) |
778 | return FALSE; | |
779 | ||
84e94c90 NC |
780 | local_got_offsets = elf_local_got_offsets (input_bfd); |
781 | ||
ce558b89 | 782 | sgot = htab->root.sgot; |
84e94c90 NC |
783 | |
784 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
785 | sym_hashes = elf_sym_hashes (input_bfd); | |
786 | ||
787 | rel = relocs; | |
788 | relend = relocs + input_section->reloc_count; | |
789 | for (; rel < relend; rel++) | |
790 | { | |
791 | reloc_howto_type *howto; | |
792 | unsigned int r_type; | |
793 | unsigned long r_symndx; | |
794 | Elf_Internal_Sym *sym; | |
795 | asection *sec; | |
796 | struct elf_link_hash_entry *h; | |
797 | bfd_vma relocation; | |
798 | bfd_vma gp; | |
799 | bfd_reloc_status_type r; | |
800 | const char *name = NULL; | |
84e94c90 NC |
801 | |
802 | r_symndx = ELF32_R_SYM (rel->r_info); | |
803 | r_type = ELF32_R_TYPE (rel->r_info); | |
804 | ||
805 | if (r_type == R_LM32_GNU_VTENTRY | |
07d6d2b8 AM |
806 | || r_type == R_LM32_GNU_VTINHERIT ) |
807 | continue; | |
84e94c90 NC |
808 | |
809 | h = NULL; | |
810 | sym = NULL; | |
811 | sec = NULL; | |
812 | ||
813 | howto = lm32_elf_howto_table + r_type; | |
814 | ||
815 | if (r_symndx < symtab_hdr->sh_info) | |
07d6d2b8 AM |
816 | { |
817 | /* It's a local symbol. */ | |
818 | sym = local_syms + r_symndx; | |
819 | sec = local_sections[r_symndx]; | |
820 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); | |
821 | name = bfd_elf_string_from_elf_section | |
84e94c90 | 822 | (input_bfd, symtab_hdr->sh_link, sym->st_name); |
fd361982 | 823 | name = name == NULL ? bfd_section_name (sec) : name; |
07d6d2b8 | 824 | } |
84e94c90 | 825 | else |
07d6d2b8 AM |
826 | { |
827 | /* It's a global symbol. */ | |
828 | bfd_boolean unresolved_reloc; | |
62d887d4 | 829 | bfd_boolean warned, ignored; |
84e94c90 NC |
830 | |
831 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, | |
832 | r_symndx, symtab_hdr, sym_hashes, | |
833 | h, sec, relocation, | |
62d887d4 | 834 | unresolved_reloc, warned, ignored); |
84e94c90 | 835 | name = h->root.root.string; |
07d6d2b8 | 836 | } |
84e94c90 | 837 | |
dbaa2011 | 838 | if (sec != NULL && discarded_section (sec)) |
e4067dbb | 839 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b | 840 | rel, 1, relend, howto, 0, contents); |
84e94c90 | 841 | |
0e1862bb | 842 | if (bfd_link_relocatable (info)) |
07d6d2b8 | 843 | { |
84e94c90 NC |
844 | /* This is a relocatable link. We don't have to change |
845 | anything, unless the reloc is against a section symbol, | |
846 | in which case we have to adjust according to where the | |
847 | section symbol winds up in the output section. */ | |
848 | if (sym == NULL || ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
849 | continue; | |
850 | ||
851 | /* If partial_inplace, we need to store any additional addend | |
852 | back in the section. */ | |
853 | if (! howto->partial_inplace) | |
854 | continue; | |
855 | ||
07d6d2b8 | 856 | /* Shouldn't reach here. */ |
84e94c90 NC |
857 | abort (); |
858 | r = bfd_reloc_ok; | |
07d6d2b8 | 859 | } |
84e94c90 | 860 | else |
07d6d2b8 AM |
861 | { |
862 | switch (howto->type) | |
863 | { | |
864 | case R_LM32_GPREL16: | |
865 | if (!lm32_elf_assign_gp (output_bfd, &gp)) | |
866 | r = bfd_reloc_dangerous; | |
867 | else | |
868 | { | |
869 | relocation = relocation + rel->r_addend - gp; | |
870 | rel->r_addend = 0; | |
871 | if ((signed)relocation < -32768 || (signed)relocation > 32767) | |
872 | r = bfd_reloc_outofrange; | |
873 | else | |
874 | { | |
875 | r = _bfd_final_link_relocate (howto, input_bfd, | |
876 | input_section, contents, | |
877 | rel->r_offset, relocation, | |
878 | rel->r_addend); | |
879 | } | |
880 | } | |
881 | break; | |
882 | case R_LM32_16_GOT: | |
883 | /* Relocation is to the entry for this symbol in the global | |
884 | offset table. */ | |
885 | BFD_ASSERT (sgot != NULL); | |
886 | if (h != NULL) | |
887 | { | |
888 | bfd_boolean dyn; | |
889 | bfd_vma off; | |
890 | ||
891 | off = h->got.offset; | |
892 | BFD_ASSERT (off != (bfd_vma) -1); | |
893 | ||
894 | dyn = htab->root.dynamic_sections_created; | |
895 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, | |
0e1862bb L |
896 | bfd_link_pic (info), |
897 | h) | |
07d6d2b8 AM |
898 | || (bfd_link_pic (info) |
899 | && (info->symbolic | |
900 | || h->dynindx == -1 | |
901 | || h->forced_local) | |
902 | && h->def_regular)) | |
903 | { | |
904 | /* This is actually a static link, or it is a | |
905 | -Bsymbolic link and the symbol is defined | |
906 | locally, or the symbol was forced to be local | |
907 | because of a version file. We must initialize | |
908 | this entry in the global offset table. Since the | |
909 | offset must always be a multiple of 4, we use the | |
910 | least significant bit to record whether we have | |
911 | initialized it already. | |
912 | ||
913 | When doing a dynamic link, we create a .rela.got | |
914 | relocation entry to initialize the value. This | |
915 | is done in the finish_dynamic_symbol routine. */ | |
916 | if ((off & 1) != 0) | |
917 | off &= ~1; | |
918 | else | |
919 | { | |
920 | /* Write entry in GOT */ | |
921 | bfd_put_32 (output_bfd, relocation, | |
922 | sgot->contents + off); | |
923 | /* Create entry in .rofixup pointing to GOT entry. */ | |
924 | if (IS_FDPIC (output_bfd) && h->root.type != bfd_link_hash_undefweak) | |
925 | { | |
926 | _lm32fdpic_add_rofixup (output_bfd, | |
927 | lm32fdpic_fixup32_section | |
928 | (info), | |
929 | sgot->output_section->vma | |
930 | + sgot->output_offset | |
931 | + off); | |
932 | } | |
933 | /* Mark GOT entry as having been written. */ | |
934 | h->got.offset |= 1; | |
935 | } | |
936 | } | |
937 | ||
938 | relocation = sgot->output_offset + off; | |
939 | } | |
940 | else | |
941 | { | |
942 | bfd_vma off; | |
943 | bfd_byte *loc; | |
944 | ||
945 | BFD_ASSERT (local_got_offsets != NULL | |
946 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
947 | ||
948 | /* Get offset into GOT table. */ | |
949 | off = local_got_offsets[r_symndx]; | |
950 | ||
951 | /* The offset must always be a multiple of 4. We use | |
952 | the least significant bit to record whether we have | |
953 | already processed this entry. */ | |
954 | if ((off & 1) != 0) | |
955 | off &= ~1; | |
956 | else | |
957 | { | |
958 | /* Write entry in GOT. */ | |
959 | bfd_put_32 (output_bfd, relocation, sgot->contents + off); | |
960 | /* Create entry in .rofixup pointing to GOT entry. */ | |
961 | if (IS_FDPIC (output_bfd)) | |
962 | { | |
963 | _lm32fdpic_add_rofixup (output_bfd, | |
964 | lm32fdpic_fixup32_section | |
965 | (info), | |
966 | sgot->output_section->vma | |
967 | + sgot->output_offset | |
968 | + off); | |
969 | } | |
970 | ||
971 | if (bfd_link_pic (info)) | |
972 | { | |
973 | asection *srelgot; | |
974 | Elf_Internal_Rela outrel; | |
975 | ||
976 | /* We need to generate a R_LM32_RELATIVE reloc | |
977 | for the dynamic linker. */ | |
978 | srelgot = htab->root.srelgot; | |
979 | BFD_ASSERT (srelgot != NULL); | |
980 | ||
981 | outrel.r_offset = (sgot->output_section->vma | |
982 | + sgot->output_offset | |
983 | + off); | |
984 | outrel.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE); | |
985 | outrel.r_addend = relocation; | |
986 | loc = srelgot->contents; | |
987 | loc += srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
988 | bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc); | |
989 | ++srelgot->reloc_count; | |
990 | } | |
991 | ||
992 | local_got_offsets[r_symndx] |= 1; | |
993 | } | |
994 | ||
995 | ||
996 | relocation = sgot->output_offset + off; | |
997 | } | |
998 | ||
999 | /* Addend should be zero. */ | |
1000 | if (rel->r_addend != 0) | |
38f14ab8 AM |
1001 | _bfd_error_handler |
1002 | (_("internal error: addend should be zero for %s"), | |
1003 | "R_LM32_16_GOT"); | |
84e94c90 | 1004 | |
07d6d2b8 AM |
1005 | r = _bfd_final_link_relocate (howto, |
1006 | input_bfd, | |
1007 | input_section, | |
1008 | contents, | |
1009 | rel->r_offset, | |
1010 | relocation, | |
1011 | rel->r_addend); | |
1012 | break; | |
1013 | ||
1014 | case R_LM32_GOTOFF_LO16: | |
1015 | case R_LM32_GOTOFF_HI16: | |
1016 | /* Relocation is offset from GOT. */ | |
84e94c90 NC |
1017 | BFD_ASSERT (sgot != NULL); |
1018 | relocation -= sgot->output_section->vma; | |
1019 | /* Account for sign-extension. */ | |
07d6d2b8 AM |
1020 | if ((r_type == R_LM32_GOTOFF_HI16) |
1021 | && ((relocation + rel->r_addend) & 0x8000)) | |
1022 | rel->r_addend += 0x10000; | |
1023 | r = _bfd_final_link_relocate (howto, | |
1024 | input_bfd, | |
1025 | input_section, | |
1026 | contents, | |
1027 | rel->r_offset, | |
1028 | relocation, | |
1029 | rel->r_addend); | |
1030 | break; | |
1031 | ||
1032 | case R_LM32_32: | |
1033 | if (IS_FDPIC (output_bfd)) | |
1034 | { | |
1035 | if ((!h) || (h && h->root.type != bfd_link_hash_undefweak)) | |
1036 | { | |
1037 | /* Only create .rofixup entries for relocs in loadable sections. */ | |
fd361982 | 1038 | if ((bfd_section_flags (input_section->output_section) |
07d6d2b8 AM |
1039 | & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) |
1040 | ||
1041 | { | |
1042 | /* Check address to be modified is writable. */ | |
1043 | if (_lm32fdpic_osec_readonly_p (output_bfd, | |
1044 | input_section | |
1045 | ->output_section)) | |
1046 | { | |
1047 | info->callbacks->warning | |
1048 | (info, | |
1049 | _("cannot emit dynamic relocations in read-only section"), | |
1050 | name, input_bfd, input_section, rel->r_offset); | |
1051 | return FALSE; | |
1052 | } | |
1053 | /* Create entry in .rofixup section. */ | |
1054 | _lm32fdpic_add_rofixup (output_bfd, | |
1055 | lm32fdpic_fixup32_section (info), | |
1056 | input_section->output_section->vma | |
1057 | + input_section->output_offset | |
1058 | + rel->r_offset); | |
1059 | } | |
1060 | } | |
1061 | } | |
1062 | /* Fall through. */ | |
1063 | ||
1064 | default: | |
1065 | r = _bfd_final_link_relocate (howto, | |
1066 | input_bfd, | |
1067 | input_section, | |
1068 | contents, | |
1069 | rel->r_offset, | |
1070 | relocation, | |
1071 | rel->r_addend); | |
1072 | break; | |
1073 | } | |
1074 | } | |
84e94c90 NC |
1075 | |
1076 | if (r != bfd_reloc_ok) | |
07d6d2b8 AM |
1077 | { |
1078 | const char *msg = NULL; | |
1079 | arelent bfd_reloc; | |
1080 | ||
f3185997 NC |
1081 | if (! lm32_info_to_howto_rela (input_bfd, &bfd_reloc, rel)) |
1082 | continue; | |
07d6d2b8 AM |
1083 | howto = bfd_reloc.howto; |
1084 | ||
1085 | if (h != NULL) | |
1086 | name = h->root.root.string; | |
1087 | else | |
1088 | { | |
1089 | name = (bfd_elf_string_from_elf_section | |
1090 | (input_bfd, symtab_hdr->sh_link, sym->st_name)); | |
1091 | if (name == NULL || *name == '\0') | |
fd361982 | 1092 | name = bfd_section_name (sec); |
07d6d2b8 AM |
1093 | } |
1094 | ||
1095 | switch (r) | |
1096 | { | |
84e94c90 NC |
1097 | case bfd_reloc_overflow: |
1098 | if ((h != NULL) | |
07d6d2b8 AM |
1099 | && (h->root.type == bfd_link_hash_undefweak)) |
1100 | break; | |
1a72702b AM |
1101 | (*info->callbacks->reloc_overflow) |
1102 | (info, (h ? &h->root : NULL), name, howto->name, | |
1103 | (bfd_vma) 0, input_bfd, input_section, rel->r_offset); | |
84e94c90 NC |
1104 | break; |
1105 | ||
07d6d2b8 | 1106 | case bfd_reloc_undefined: |
1a72702b AM |
1107 | (*info->callbacks->undefined_symbol) |
1108 | (info, name, input_bfd, input_section, rel->r_offset, TRUE); | |
07d6d2b8 | 1109 | break; |
84e94c90 | 1110 | |
07d6d2b8 AM |
1111 | case bfd_reloc_outofrange: |
1112 | msg = _("internal error: out of range error"); | |
1113 | goto common_error; | |
84e94c90 | 1114 | |
07d6d2b8 AM |
1115 | case bfd_reloc_notsupported: |
1116 | msg = _("internal error: unsupported relocation error"); | |
1117 | goto common_error; | |
84e94c90 | 1118 | |
07d6d2b8 AM |
1119 | case bfd_reloc_dangerous: |
1120 | msg = _("internal error: dangerous error"); | |
1121 | goto common_error; | |
84e94c90 | 1122 | |
07d6d2b8 AM |
1123 | default: |
1124 | msg = _("internal error: unknown error"); | |
1125 | /* fall through */ | |
84e94c90 | 1126 | |
07d6d2b8 | 1127 | common_error: |
1a72702b AM |
1128 | (*info->callbacks->warning) (info, msg, name, input_bfd, |
1129 | input_section, rel->r_offset); | |
07d6d2b8 AM |
1130 | break; |
1131 | } | |
1132 | } | |
84e94c90 NC |
1133 | } |
1134 | ||
1135 | return TRUE; | |
1136 | } | |
1137 | ||
1138 | static asection * | |
1139 | lm32_elf_gc_mark_hook (asection *sec, | |
07d6d2b8 AM |
1140 | struct bfd_link_info *info, |
1141 | Elf_Internal_Rela *rel, | |
1142 | struct elf_link_hash_entry *h, | |
1143 | Elf_Internal_Sym *sym) | |
84e94c90 NC |
1144 | { |
1145 | if (h != NULL) | |
1146 | switch (ELF32_R_TYPE (rel->r_info)) | |
1147 | { | |
1148 | case R_LM32_GNU_VTINHERIT: | |
1149 | case R_LM32_GNU_VTENTRY: | |
1150 | return NULL; | |
1151 | } | |
1152 | ||
1153 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); | |
1154 | } | |
1155 | ||
84e94c90 NC |
1156 | /* Look through the relocs for a section during the first phase. */ |
1157 | ||
1158 | static bfd_boolean | |
1159 | lm32_elf_check_relocs (bfd *abfd, | |
07d6d2b8 AM |
1160 | struct bfd_link_info *info, |
1161 | asection *sec, | |
1162 | const Elf_Internal_Rela *relocs) | |
84e94c90 NC |
1163 | { |
1164 | Elf_Internal_Shdr *symtab_hdr; | |
1165 | struct elf_link_hash_entry **sym_hashes, **sym_hashes_end; | |
1166 | const Elf_Internal_Rela *rel; | |
1167 | const Elf_Internal_Rela *rel_end; | |
1168 | struct elf_lm32_link_hash_table *htab; | |
1169 | bfd *dynobj; | |
84e94c90 | 1170 | |
0e1862bb | 1171 | if (bfd_link_relocatable (info)) |
84e94c90 NC |
1172 | return TRUE; |
1173 | ||
65281396 AM |
1174 | /* Don't do anything special with non-loaded, non-alloced sections. |
1175 | In particular, any relocs in such sections should not affect GOT | |
1176 | and PLT reference counting (ie. we don't allow them to create GOT | |
1177 | or PLT entries), there's no possibility or desire to optimize TLS | |
1178 | relocs, and there's not much point in propagating relocs to shared | |
1179 | libs that the dynamic linker won't relocate. */ | |
1180 | if ((sec->flags & SEC_ALLOC) == 0) | |
1181 | return TRUE; | |
1182 | ||
84e94c90 NC |
1183 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1184 | sym_hashes = elf_sym_hashes (abfd); | |
1185 | sym_hashes_end = sym_hashes + symtab_hdr->sh_size/sizeof (Elf32_External_Sym); | |
1186 | if (!elf_bad_symtab (abfd)) | |
1187 | sym_hashes_end -= symtab_hdr->sh_info; | |
1188 | ||
1189 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
1190 | if (htab == NULL) |
1191 | return FALSE; | |
1192 | ||
84e94c90 | 1193 | dynobj = htab->root.dynobj; |
84e94c90 NC |
1194 | |
1195 | rel_end = relocs + sec->reloc_count; | |
1196 | for (rel = relocs; rel < rel_end; rel++) | |
1197 | { | |
1198 | int r_type; | |
1199 | struct elf_link_hash_entry *h; | |
1200 | unsigned long r_symndx; | |
1201 | ||
1202 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1203 | r_type = ELF32_R_TYPE (rel->r_info); | |
1204 | if (r_symndx < symtab_hdr->sh_info) | |
07d6d2b8 | 1205 | h = NULL; |
84e94c90 NC |
1206 | else |
1207 | { | |
1208 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1209 | while (h->root.type == bfd_link_hash_indirect | |
1210 | || h->root.type == bfd_link_hash_warning) | |
1211 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1212 | } | |
1213 | ||
1214 | /* Some relocs require a global offset table. */ | |
ce558b89 | 1215 | if (htab->root.sgot == NULL) |
07d6d2b8 AM |
1216 | { |
1217 | switch (r_type) | |
1218 | { | |
1219 | case R_LM32_16_GOT: | |
1220 | case R_LM32_GOTOFF_HI16: | |
1221 | case R_LM32_GOTOFF_LO16: | |
1222 | if (dynobj == NULL) | |
1223 | htab->root.dynobj = dynobj = abfd; | |
1224 | if (!_bfd_elf_create_got_section (dynobj, info)) | |
1225 | return FALSE; | |
1226 | break; | |
1227 | } | |
1228 | } | |
84e94c90 NC |
1229 | |
1230 | /* Some relocs require a rofixup table. */ | |
1231 | if (IS_FDPIC (abfd)) | |
07d6d2b8 AM |
1232 | { |
1233 | switch (r_type) | |
1234 | { | |
1235 | case R_LM32_32: | |
1236 | /* FDPIC requires a GOT if there is a .rofixup section | |
1237 | (Normal ELF doesn't). */ | |
1238 | if (dynobj == NULL) | |
1239 | htab->root.dynobj = dynobj = abfd; | |
1240 | if (!_bfd_elf_create_got_section (dynobj, info)) | |
1241 | return FALSE; | |
1242 | /* Create .rofixup section */ | |
1243 | if (htab->sfixup32 == NULL) | |
1244 | { | |
1245 | if (! create_rofixup_section (dynobj, info)) | |
1246 | return FALSE; | |
1247 | } | |
1248 | break; | |
1249 | case R_LM32_16_GOT: | |
1250 | case R_LM32_GOTOFF_HI16: | |
1251 | case R_LM32_GOTOFF_LO16: | |
1252 | /* Create .rofixup section. */ | |
1253 | if (htab->sfixup32 == NULL) | |
1254 | { | |
3d4d4302 AM |
1255 | if (dynobj == NULL) |
1256 | htab->root.dynobj = dynobj = abfd; | |
07d6d2b8 AM |
1257 | if (! create_rofixup_section (dynobj, info)) |
1258 | return FALSE; | |
1259 | } | |
1260 | break; | |
1261 | } | |
1262 | } | |
84e94c90 NC |
1263 | |
1264 | switch (r_type) | |
1265 | { | |
1266 | case R_LM32_16_GOT: | |
07d6d2b8 AM |
1267 | if (h != NULL) |
1268 | h->got.refcount += 1; | |
1269 | else | |
1270 | { | |
1271 | bfd_signed_vma *local_got_refcounts; | |
1272 | ||
1273 | /* This is a global offset table entry for a local symbol. */ | |
1274 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1275 | if (local_got_refcounts == NULL) | |
1276 | { | |
1277 | bfd_size_type size; | |
1278 | ||
1279 | size = symtab_hdr->sh_info; | |
1280 | size *= sizeof (bfd_signed_vma); | |
1281 | local_got_refcounts = bfd_zalloc (abfd, size); | |
1282 | if (local_got_refcounts == NULL) | |
1283 | return FALSE; | |
1284 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1285 | } | |
1286 | local_got_refcounts[r_symndx] += 1; | |
1287 | } | |
1288 | break; | |
1289 | ||
1290 | /* This relocation describes the C++ object vtable hierarchy. | |
1291 | Reconstruct it for later use during GC. */ | |
1292 | case R_LM32_GNU_VTINHERIT: | |
1293 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
1294 | return FALSE; | |
1295 | break; | |
1296 | ||
1297 | /* This relocation describes which C++ vtable entries are actually | |
1298 | used. Record for later use during GC. */ | |
1299 | case R_LM32_GNU_VTENTRY: | |
1300 | if (!bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
1301 | return FALSE; | |
1302 | break; | |
1303 | ||
1304 | } | |
84e94c90 NC |
1305 | } |
1306 | ||
1307 | return TRUE; | |
1308 | } | |
1309 | ||
1310 | /* Finish up the dynamic sections. */ | |
1311 | ||
1312 | static bfd_boolean | |
1313 | lm32_elf_finish_dynamic_sections (bfd *output_bfd, | |
1314 | struct bfd_link_info *info) | |
1315 | { | |
1316 | struct elf_lm32_link_hash_table *htab; | |
1317 | bfd *dynobj; | |
1318 | asection *sdyn; | |
1319 | asection *sgot; | |
1320 | ||
1321 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
1322 | if (htab == NULL) |
1323 | return FALSE; | |
1324 | ||
84e94c90 NC |
1325 | dynobj = htab->root.dynobj; |
1326 | ||
ce558b89 | 1327 | sgot = htab->root.sgotplt; |
3d4d4302 | 1328 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
84e94c90 NC |
1329 | |
1330 | if (htab->root.dynamic_sections_created) | |
1331 | { | |
1332 | asection *splt; | |
1333 | Elf32_External_Dyn *dyncon, *dynconend; | |
1334 | ||
1335 | BFD_ASSERT (sgot != NULL && sdyn != NULL); | |
1336 | ||
1337 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
1338 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); | |
1339 | ||
1340 | for (; dyncon < dynconend; dyncon++) | |
07d6d2b8 AM |
1341 | { |
1342 | Elf_Internal_Dyn dyn; | |
1343 | asection *s; | |
1344 | ||
1345 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
1346 | ||
1347 | switch (dyn.d_tag) | |
1348 | { | |
1349 | default: | |
1350 | break; | |
1351 | ||
1352 | case DT_PLTGOT: | |
1353 | s = htab->root.sgotplt; | |
1354 | goto get_vma; | |
1355 | case DT_JMPREL: | |
1356 | s = htab->root.srelplt; | |
1357 | get_vma: | |
1358 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
1359 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
1360 | break; | |
1361 | ||
1362 | case DT_PLTRELSZ: | |
1363 | s = htab->root.srelplt; | |
84e94c90 | 1364 | dyn.d_un.d_val = s->size; |
07d6d2b8 AM |
1365 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); |
1366 | break; | |
1367 | } | |
1368 | } | |
84e94c90 NC |
1369 | |
1370 | /* Fill in the first entry in the procedure linkage table. */ | |
ce558b89 | 1371 | splt = htab->root.splt; |
84e94c90 | 1372 | if (splt && splt->size > 0) |
07d6d2b8 AM |
1373 | { |
1374 | if (bfd_link_pic (info)) | |
1375 | { | |
1376 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD0, splt->contents); | |
1377 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD1, splt->contents + 4); | |
1378 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD2, splt->contents + 8); | |
1379 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD3, splt->contents + 12); | |
1380 | bfd_put_32 (output_bfd, PLT0_PIC_ENTRY_WORD4, splt->contents + 16); | |
1381 | } | |
1382 | else | |
1383 | { | |
1384 | unsigned long addr; | |
1385 | /* addr = .got + 4 */ | |
1386 | addr = sgot->output_section->vma + sgot->output_offset + 4; | |
1387 | bfd_put_32 (output_bfd, | |
84e94c90 NC |
1388 | PLT0_ENTRY_WORD0 | ((addr >> 16) & 0xffff), |
1389 | splt->contents); | |
07d6d2b8 | 1390 | bfd_put_32 (output_bfd, |
84e94c90 NC |
1391 | PLT0_ENTRY_WORD1 | (addr & 0xffff), |
1392 | splt->contents + 4); | |
07d6d2b8 AM |
1393 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD2, splt->contents + 8); |
1394 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD3, splt->contents + 12); | |
1395 | bfd_put_32 (output_bfd, PLT0_ENTRY_WORD4, splt->contents + 16); | |
1396 | } | |
1397 | ||
1398 | elf_section_data (splt->output_section)->this_hdr.sh_entsize = | |
1399 | PLT_ENTRY_SIZE; | |
1400 | } | |
84e94c90 NC |
1401 | } |
1402 | ||
1403 | /* Fill in the first three entries in the global offset table. */ | |
1404 | if (sgot && sgot->size > 0) | |
1405 | { | |
1406 | if (sdyn == NULL) | |
07d6d2b8 | 1407 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); |
84e94c90 | 1408 | else |
07d6d2b8 AM |
1409 | bfd_put_32 (output_bfd, |
1410 | sdyn->output_section->vma + sdyn->output_offset, | |
1411 | sgot->contents); | |
84e94c90 NC |
1412 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); |
1413 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
1414 | ||
1415 | /* FIXME: This can be null if create_dynamic_sections wasn't called. */ | |
1416 | if (elf_section_data (sgot->output_section) != NULL) | |
07d6d2b8 | 1417 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; |
84e94c90 NC |
1418 | } |
1419 | ||
1420 | if (lm32fdpic_fixup32_section (info)) | |
1421 | { | |
1422 | struct elf_link_hash_entry *hgot = elf_hash_table (info)->hgot; | |
1423 | bfd_vma got_value = hgot->root.u.def.value | |
07d6d2b8 AM |
1424 | + hgot->root.u.def.section->output_section->vma |
1425 | + hgot->root.u.def.section->output_offset; | |
84e94c90 NC |
1426 | struct bfd_link_hash_entry *hend; |
1427 | ||
1428 | /* Last entry is pointer to GOT. */ | |
1429 | _lm32fdpic_add_rofixup (output_bfd, lm32fdpic_fixup32_section (info), got_value); | |
1430 | ||
1431 | /* Check we wrote enough entries. */ | |
1432 | if (lm32fdpic_fixup32_section (info)->size | |
07d6d2b8 AM |
1433 | != (lm32fdpic_fixup32_section (info)->reloc_count * 4)) |
1434 | { | |
4eca0228 | 1435 | _bfd_error_handler |
2dcf00ce AM |
1436 | ("LINKER BUG: .rofixup section size mismatch: size/4 %" PRId64 |
1437 | " != relocs %d", | |
1438 | (int64_t) (lm32fdpic_fixup32_section (info)->size / 4), | |
07d6d2b8 AM |
1439 | lm32fdpic_fixup32_section (info)->reloc_count); |
1440 | return FALSE; | |
1441 | } | |
84e94c90 NC |
1442 | |
1443 | hend = bfd_link_hash_lookup (info->hash, "__ROFIXUP_END__", | |
07d6d2b8 | 1444 | FALSE, FALSE, TRUE); |
84e94c90 | 1445 | if (hend |
07d6d2b8 | 1446 | && (hend->type == bfd_link_hash_defined |
a0f6fd21 AM |
1447 | || hend->type == bfd_link_hash_defweak) |
1448 | && hend->u.def.section->output_section != NULL) | |
07d6d2b8 AM |
1449 | { |
1450 | bfd_vma value = | |
1451 | lm32fdpic_fixup32_section (info)->output_section->vma | |
1452 | + lm32fdpic_fixup32_section (info)->output_offset | |
1453 | + lm32fdpic_fixup32_section (info)->size | |
1454 | - hend->u.def.section->output_section->vma | |
1455 | - hend->u.def.section->output_offset; | |
1456 | BFD_ASSERT (hend->u.def.value == value); | |
1457 | if (hend->u.def.value != value) | |
1458 | { | |
4eca0228 | 1459 | _bfd_error_handler |
2dcf00ce AM |
1460 | ("LINKER BUG: .rofixup section hend->u.def.value != value: %" |
1461 | PRId64 " != %" PRId64, | |
1462 | (int64_t) hend->u.def.value, (int64_t) value); | |
07d6d2b8 AM |
1463 | return FALSE; |
1464 | } | |
1465 | } | |
84e94c90 NC |
1466 | } |
1467 | ||
1468 | return TRUE; | |
1469 | } | |
1470 | ||
1471 | /* Finish up dynamic symbol handling. We set the contents of various | |
1472 | dynamic sections here. */ | |
1473 | ||
1474 | static bfd_boolean | |
1475 | lm32_elf_finish_dynamic_symbol (bfd *output_bfd, | |
1476 | struct bfd_link_info *info, | |
1477 | struct elf_link_hash_entry *h, | |
1478 | Elf_Internal_Sym *sym) | |
1479 | { | |
1480 | struct elf_lm32_link_hash_table *htab; | |
84e94c90 NC |
1481 | bfd_byte *loc; |
1482 | ||
1483 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
1484 | if (htab == NULL) |
1485 | return FALSE; | |
1486 | ||
84e94c90 NC |
1487 | if (h->plt.offset != (bfd_vma) -1) |
1488 | { | |
1489 | asection *splt; | |
1490 | asection *sgot; | |
1491 | asection *srela; | |
1492 | ||
1493 | bfd_vma plt_index; | |
1494 | bfd_vma got_offset; | |
1495 | Elf_Internal_Rela rela; | |
1496 | ||
1497 | /* This symbol has an entry in the procedure linkage table. Set | |
07d6d2b8 | 1498 | it up. */ |
84e94c90 NC |
1499 | BFD_ASSERT (h->dynindx != -1); |
1500 | ||
ce558b89 AM |
1501 | splt = htab->root.splt; |
1502 | sgot = htab->root.sgotplt; | |
1503 | srela = htab->root.srelplt; | |
84e94c90 NC |
1504 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); |
1505 | ||
1506 | /* Get the index in the procedure linkage table which | |
07d6d2b8 AM |
1507 | corresponds to this symbol. This is the index of this symbol |
1508 | in all the symbols for which we are making plt entries. The | |
1509 | first entry in the procedure linkage table is reserved. */ | |
84e94c90 NC |
1510 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; |
1511 | ||
1512 | /* Get the offset into the .got table of the entry that | |
07d6d2b8 AM |
1513 | corresponds to this function. Each .got entry is 4 bytes. |
1514 | The first three are reserved. */ | |
84e94c90 NC |
1515 | got_offset = (plt_index + 3) * 4; |
1516 | ||
1517 | /* Fill in the entry in the procedure linkage table. */ | |
0e1862bb | 1518 | if (! bfd_link_pic (info)) |
07d6d2b8 AM |
1519 | { |
1520 | /* TODO */ | |
1521 | } | |
84e94c90 | 1522 | else |
07d6d2b8 AM |
1523 | { |
1524 | /* TODO */ | |
1525 | } | |
84e94c90 NC |
1526 | |
1527 | /* Fill in the entry in the global offset table. */ | |
1528 | bfd_put_32 (output_bfd, | |
07d6d2b8 AM |
1529 | (splt->output_section->vma |
1530 | + splt->output_offset | |
1531 | + h->plt.offset | |
1532 | + 12), /* same offset */ | |
1533 | sgot->contents + got_offset); | |
84e94c90 NC |
1534 | |
1535 | /* Fill in the entry in the .rela.plt section. */ | |
1536 | rela.r_offset = (sgot->output_section->vma | |
07d6d2b8 AM |
1537 | + sgot->output_offset |
1538 | + got_offset); | |
84e94c90 NC |
1539 | rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_JMP_SLOT); |
1540 | rela.r_addend = 0; | |
1541 | loc = srela->contents; | |
1542 | loc += plt_index * sizeof (Elf32_External_Rela); | |
1543 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1544 | ||
1545 | if (!h->def_regular) | |
07d6d2b8 AM |
1546 | { |
1547 | /* Mark the symbol as undefined, rather than as defined in | |
1548 | the .plt section. Leave the value alone. */ | |
1549 | sym->st_shndx = SHN_UNDEF; | |
1550 | } | |
84e94c90 NC |
1551 | |
1552 | } | |
1553 | ||
1554 | if (h->got.offset != (bfd_vma) -1) | |
1555 | { | |
1556 | asection *sgot; | |
1557 | asection *srela; | |
1558 | Elf_Internal_Rela rela; | |
1559 | ||
1560 | /* This symbol has an entry in the global offset table. Set it | |
07d6d2b8 | 1561 | up. */ |
ce558b89 AM |
1562 | sgot = htab->root.sgot; |
1563 | srela = htab->root.srelgot; | |
84e94c90 NC |
1564 | BFD_ASSERT (sgot != NULL && srela != NULL); |
1565 | ||
1566 | rela.r_offset = (sgot->output_section->vma | |
07d6d2b8 AM |
1567 | + sgot->output_offset |
1568 | + (h->got.offset &~ 1)); | |
84e94c90 NC |
1569 | |
1570 | /* If this is a -Bsymbolic link, and the symbol is defined | |
07d6d2b8 AM |
1571 | locally, we just want to emit a RELATIVE reloc. Likewise if |
1572 | the symbol was forced to be local because of a version file. | |
1573 | The entry in the global offset table will already have been | |
1574 | initialized in the relocate_section function. */ | |
0e1862bb | 1575 | if (bfd_link_pic (info) |
07d6d2b8 | 1576 | && (info->symbolic |
84e94c90 NC |
1577 | || h->dynindx == -1 |
1578 | || h->forced_local) | |
07d6d2b8 AM |
1579 | && h->def_regular) |
1580 | { | |
1581 | rela.r_info = ELF32_R_INFO (0, R_LM32_RELATIVE); | |
1582 | rela.r_addend = (h->root.u.def.value | |
1583 | + h->root.u.def.section->output_section->vma | |
1584 | + h->root.u.def.section->output_offset); | |
1585 | } | |
84e94c90 | 1586 | else |
07d6d2b8 | 1587 | { |
84e94c90 | 1588 | BFD_ASSERT ((h->got.offset & 1) == 0); |
07d6d2b8 AM |
1589 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + h->got.offset); |
1590 | rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_GLOB_DAT); | |
1591 | rela.r_addend = 0; | |
1592 | } | |
84e94c90 NC |
1593 | |
1594 | loc = srela->contents; | |
1595 | loc += srela->reloc_count * sizeof (Elf32_External_Rela); | |
1596 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1597 | ++srela->reloc_count; | |
1598 | } | |
1599 | ||
1600 | if (h->needs_copy) | |
1601 | { | |
1602 | asection *s; | |
1603 | Elf_Internal_Rela rela; | |
1604 | ||
1605 | /* This symbols needs a copy reloc. Set it up. */ | |
1606 | BFD_ASSERT (h->dynindx != -1 | |
07d6d2b8 AM |
1607 | && (h->root.type == bfd_link_hash_defined |
1608 | || h->root.type == bfd_link_hash_defweak)); | |
84e94c90 | 1609 | |
3d4d4302 | 1610 | s = bfd_get_linker_section (htab->root.dynobj, ".rela.bss"); |
84e94c90 NC |
1611 | BFD_ASSERT (s != NULL); |
1612 | ||
1613 | rela.r_offset = (h->root.u.def.value | |
07d6d2b8 AM |
1614 | + h->root.u.def.section->output_section->vma |
1615 | + h->root.u.def.section->output_offset); | |
84e94c90 NC |
1616 | rela.r_info = ELF32_R_INFO (h->dynindx, R_LM32_COPY); |
1617 | rela.r_addend = 0; | |
1618 | loc = s->contents; | |
1619 | loc += s->reloc_count * sizeof (Elf32_External_Rela); | |
1620 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
1621 | ++s->reloc_count; | |
1622 | } | |
1623 | ||
1624 | /* Mark some specially defined symbols as absolute. */ | |
9637f6ef | 1625 | if (h == htab->root.hdynamic || h == htab->root.hgot) |
84e94c90 NC |
1626 | sym->st_shndx = SHN_ABS; |
1627 | ||
1628 | return TRUE; | |
1629 | } | |
1630 | ||
1631 | static enum elf_reloc_type_class | |
7e612e98 AM |
1632 | lm32_elf_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
1633 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
1634 | const Elf_Internal_Rela *rela) | |
84e94c90 NC |
1635 | { |
1636 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
1637 | { | |
1638 | case R_LM32_RELATIVE: return reloc_class_relative; | |
1639 | case R_LM32_JMP_SLOT: return reloc_class_plt; | |
1640 | case R_LM32_COPY: return reloc_class_copy; | |
07d6d2b8 | 1641 | default: return reloc_class_normal; |
84e94c90 NC |
1642 | } |
1643 | } | |
1644 | ||
63c1f59d AM |
1645 | /* Find dynamic relocs for H that apply to read-only sections. */ |
1646 | ||
1647 | static asection * | |
1648 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
1649 | { | |
3bf083ed | 1650 | struct elf_dyn_relocs *p; |
63c1f59d AM |
1651 | struct elf_lm32_link_hash_entry *eh = (struct elf_lm32_link_hash_entry *) h; |
1652 | ||
1653 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1654 | { | |
1655 | asection *s = p->sec->output_section; | |
1656 | ||
1657 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1658 | return p->sec; | |
1659 | } | |
1660 | return NULL; | |
1661 | } | |
1662 | ||
84e94c90 NC |
1663 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1664 | regular object. The current definition is in some section of the | |
1665 | dynamic object, but we're not including those sections. We have to | |
1666 | change the definition to something the rest of the link can | |
1667 | understand. */ | |
1668 | ||
1669 | static bfd_boolean | |
1670 | lm32_elf_adjust_dynamic_symbol (struct bfd_link_info *info, | |
1671 | struct elf_link_hash_entry *h) | |
1672 | { | |
1673 | struct elf_lm32_link_hash_table *htab; | |
84e94c90 NC |
1674 | bfd *dynobj; |
1675 | asection *s; | |
1676 | ||
1677 | dynobj = elf_hash_table (info)->dynobj; | |
1678 | ||
1679 | /* Make sure we know what is going on here. */ | |
1680 | BFD_ASSERT (dynobj != NULL | |
07d6d2b8 AM |
1681 | && (h->needs_plt |
1682 | || h->is_weakalias | |
1683 | || (h->def_dynamic | |
1684 | && h->ref_regular | |
1685 | && !h->def_regular))); | |
84e94c90 NC |
1686 | |
1687 | /* If this is a function, put it in the procedure linkage table. We | |
1688 | will fill in the contents of the procedure linkage table later, | |
1689 | when we know the address of the .got section. */ | |
1690 | if (h->type == STT_FUNC | |
1691 | || h->needs_plt) | |
1692 | { | |
0e1862bb | 1693 | if (! bfd_link_pic (info) |
07d6d2b8 AM |
1694 | && !h->def_dynamic |
1695 | && !h->ref_dynamic | |
84e94c90 NC |
1696 | && h->root.type != bfd_link_hash_undefweak |
1697 | && h->root.type != bfd_link_hash_undefined) | |
07d6d2b8 AM |
1698 | { |
1699 | /* This case can occur if we saw a PLT reloc in an input | |
1700 | file, but the symbol was never referred to by a dynamic | |
1701 | object. In such a case, we don't actually need to build | |
1702 | a procedure linkage table, and we can just do a PCREL | |
1703 | reloc instead. */ | |
1704 | h->plt.offset = (bfd_vma) -1; | |
1705 | h->needs_plt = 0; | |
1706 | } | |
84e94c90 NC |
1707 | |
1708 | return TRUE; | |
1709 | } | |
1710 | else | |
1711 | h->plt.offset = (bfd_vma) -1; | |
1712 | ||
1713 | /* If this is a weak symbol, and there is a real definition, the | |
1714 | processor independent code will have arranged for us to see the | |
1715 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 1716 | if (h->is_weakalias) |
84e94c90 | 1717 | { |
60d67dc8 AM |
1718 | struct elf_link_hash_entry *def = weakdef (h); |
1719 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
1720 | h->root.u.def.section = def->root.u.def.section; | |
1721 | h->root.u.def.value = def->root.u.def.value; | |
84e94c90 NC |
1722 | return TRUE; |
1723 | } | |
1724 | ||
1725 | /* This is a reference to a symbol defined by a dynamic object which | |
1726 | is not a function. */ | |
1727 | ||
1728 | /* If we are creating a shared library, we must presume that the | |
1729 | only references to the symbol are via the global offset table. | |
1730 | For such cases we need not do anything here; the relocations will | |
1731 | be handled correctly by relocate_section. */ | |
0e1862bb | 1732 | if (bfd_link_pic (info)) |
84e94c90 NC |
1733 | return TRUE; |
1734 | ||
1735 | /* If there are no references to this symbol that do not use the | |
1736 | GOT, we don't need to generate a copy reloc. */ | |
1737 | if (!h->non_got_ref) | |
1738 | return TRUE; | |
1739 | ||
1740 | /* If -z nocopyreloc was given, we won't generate them either. */ | |
3bf083ed | 1741 | if (0 && info->nocopyreloc) |
84e94c90 NC |
1742 | { |
1743 | h->non_got_ref = 0; | |
1744 | return TRUE; | |
1745 | } | |
1746 | ||
3bf083ed AM |
1747 | /* If we don't find any dynamic relocs in read-only sections, then |
1748 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1749 | if (0 && !readonly_dynrelocs (h)) | |
84e94c90 NC |
1750 | { |
1751 | h->non_got_ref = 0; | |
1752 | return TRUE; | |
1753 | } | |
1754 | ||
84e94c90 NC |
1755 | /* We must allocate the symbol in our .dynbss section, which will |
1756 | become part of the .bss section of the executable. There will be | |
1757 | an entry for this symbol in the .dynsym section. The dynamic | |
1758 | object will contain position independent code, so all references | |
1759 | from the dynamic object to this symbol will go through the global | |
1760 | offset table. The dynamic linker will use the .dynsym entry to | |
1761 | determine the address it must put in the global offset table, so | |
1762 | both the dynamic object and the regular object will refer to the | |
1763 | same memory location for the variable. */ | |
1764 | ||
1765 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
1766 | if (htab == NULL) |
1767 | return FALSE; | |
1768 | ||
84e94c90 NC |
1769 | s = htab->sdynbss; |
1770 | BFD_ASSERT (s != NULL); | |
1771 | ||
1772 | /* We must generate a R_LM32_COPY reloc to tell the dynamic linker | |
1773 | to copy the initial value out of the dynamic object and into the | |
1774 | runtime process image. We need to remember the offset into the | |
1775 | .rela.bss section we are going to use. */ | |
1d7e9d18 | 1776 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
84e94c90 NC |
1777 | { |
1778 | asection *srel; | |
1779 | ||
1780 | srel = htab->srelbss; | |
1781 | BFD_ASSERT (srel != NULL); | |
1782 | srel->size += sizeof (Elf32_External_Rela); | |
1783 | h->needs_copy = 1; | |
1784 | } | |
1785 | ||
6cabe1ea | 1786 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
84e94c90 NC |
1787 | } |
1788 | ||
1789 | /* Allocate space in .plt, .got and associated reloc sections for | |
1790 | dynamic relocs. */ | |
1791 | ||
1792 | static bfd_boolean | |
1793 | allocate_dynrelocs (struct elf_link_hash_entry *h, void * inf) | |
1794 | { | |
1795 | struct bfd_link_info *info; | |
1796 | struct elf_lm32_link_hash_table *htab; | |
1797 | struct elf_lm32_link_hash_entry *eh; | |
3bf083ed | 1798 | struct elf_dyn_relocs *p; |
84e94c90 NC |
1799 | |
1800 | if (h->root.type == bfd_link_hash_indirect) | |
1801 | return TRUE; | |
1802 | ||
84e94c90 NC |
1803 | info = (struct bfd_link_info *) inf; |
1804 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
1805 | if (htab == NULL) |
1806 | return FALSE; | |
84e94c90 NC |
1807 | |
1808 | eh = (struct elf_lm32_link_hash_entry *) h; | |
1809 | ||
1810 | if (htab->root.dynamic_sections_created | |
1811 | && h->plt.refcount > 0) | |
1812 | { | |
1813 | /* Make sure this symbol is output as a dynamic symbol. | |
07d6d2b8 | 1814 | Undefined weak syms won't yet be marked as dynamic. */ |
84e94c90 | 1815 | if (h->dynindx == -1 |
07d6d2b8 AM |
1816 | && !h->forced_local) |
1817 | { | |
1818 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
1819 | return FALSE; | |
1820 | } | |
84e94c90 | 1821 | |
0e1862bb | 1822 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) |
07d6d2b8 AM |
1823 | { |
1824 | asection *s = htab->root.splt; | |
1825 | ||
1826 | /* If this is the first .plt entry, make room for the special | |
1827 | first entry. */ | |
1828 | if (s->size == 0) | |
1829 | s->size += PLT_ENTRY_SIZE; | |
1830 | ||
1831 | h->plt.offset = s->size; | |
1832 | ||
1833 | /* If this symbol is not defined in a regular file, and we are | |
1834 | not generating a shared library, then set the symbol to this | |
1835 | location in the .plt. This is required to make function | |
1836 | pointers compare as equal between the normal executable and | |
1837 | the shared library. */ | |
1838 | if (! bfd_link_pic (info) | |
1839 | && !h->def_regular) | |
1840 | { | |
1841 | h->root.u.def.section = s; | |
1842 | h->root.u.def.value = h->plt.offset; | |
1843 | } | |
1844 | ||
1845 | /* Make room for this entry. */ | |
1846 | s->size += PLT_ENTRY_SIZE; | |
1847 | ||
1848 | /* We also need to make an entry in the .got.plt section, which | |
1849 | will be placed in the .got section by the linker script. */ | |
1850 | htab->root.sgotplt->size += 4; | |
1851 | ||
1852 | /* We also need to make an entry in the .rel.plt section. */ | |
1853 | htab->root.srelplt->size += sizeof (Elf32_External_Rela); | |
1854 | } | |
84e94c90 | 1855 | else |
07d6d2b8 AM |
1856 | { |
1857 | h->plt.offset = (bfd_vma) -1; | |
1858 | h->needs_plt = 0; | |
1859 | } | |
84e94c90 NC |
1860 | } |
1861 | else | |
1862 | { | |
1863 | h->plt.offset = (bfd_vma) -1; | |
1864 | h->needs_plt = 0; | |
1865 | } | |
1866 | ||
1867 | if (h->got.refcount > 0) | |
1868 | { | |
1869 | asection *s; | |
1870 | bfd_boolean dyn; | |
1871 | ||
1872 | /* Make sure this symbol is output as a dynamic symbol. | |
07d6d2b8 | 1873 | Undefined weak syms won't yet be marked as dynamic. */ |
84e94c90 | 1874 | if (h->dynindx == -1 |
07d6d2b8 AM |
1875 | && !h->forced_local) |
1876 | { | |
1877 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
1878 | return FALSE; | |
1879 | } | |
84e94c90 | 1880 | |
ce558b89 | 1881 | s = htab->root.sgot; |
84e94c90 NC |
1882 | |
1883 | h->got.offset = s->size; | |
1884 | s->size += 4; | |
1885 | dyn = htab->root.dynamic_sections_created; | |
0e1862bb | 1886 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), h)) |
07d6d2b8 | 1887 | htab->root.srelgot->size += sizeof (Elf32_External_Rela); |
84e94c90 NC |
1888 | } |
1889 | else | |
1890 | h->got.offset = (bfd_vma) -1; | |
1891 | ||
1892 | if (eh->dyn_relocs == NULL) | |
1893 | return TRUE; | |
1894 | ||
1895 | /* In the shared -Bsymbolic case, discard space allocated for | |
1896 | dynamic pc-relative relocs against symbols which turn out to be | |
1897 | defined in regular objects. For the normal shared case, discard | |
1898 | space for pc-relative relocs that have become local due to symbol | |
1899 | visibility changes. */ | |
1900 | ||
0e1862bb | 1901 | if (bfd_link_pic (info)) |
84e94c90 NC |
1902 | { |
1903 | if (h->def_regular | |
07d6d2b8 AM |
1904 | && (h->forced_local |
1905 | || info->symbolic)) | |
1906 | { | |
1907 | struct elf_dyn_relocs **pp; | |
1908 | ||
1909 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL;) | |
1910 | { | |
1911 | p->count -= p->pc_count; | |
1912 | p->pc_count = 0; | |
1913 | if (p->count == 0) | |
1914 | *pp = p->next; | |
1915 | else | |
1916 | pp = &p->next; | |
1917 | } | |
1918 | } | |
84e94c90 NC |
1919 | |
1920 | /* Also discard relocs on undefined weak syms with non-default | |
1921 | visibility. */ | |
1922 | if (eh->dyn_relocs != NULL | |
1923 | && h->root.type == bfd_link_hash_undefweak) | |
1924 | { | |
1925 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
1926 | eh->dyn_relocs = NULL; | |
1927 | ||
1928 | /* Make sure undefined weak symbols are output as a dynamic | |
1929 | symbol in PIEs. */ | |
1930 | else if (h->dynindx == -1 | |
1931 | && !h->forced_local) | |
1932 | { | |
1933 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
1934 | return FALSE; | |
1935 | } | |
1936 | } | |
1937 | } | |
1938 | else | |
1939 | { | |
1940 | /* For the non-shared case, discard space for relocs against | |
07d6d2b8 AM |
1941 | symbols which turn out to need copy relocs or are not |
1942 | dynamic. */ | |
84e94c90 NC |
1943 | |
1944 | if (!h->non_got_ref | |
07d6d2b8 AM |
1945 | && ((h->def_dynamic |
1946 | && !h->def_regular) | |
1947 | || (htab->root.dynamic_sections_created | |
1948 | && (h->root.type == bfd_link_hash_undefweak | |
1949 | || h->root.type == bfd_link_hash_undefined)))) | |
1950 | { | |
1951 | /* Make sure this symbol is output as a dynamic symbol. | |
1952 | Undefined weak syms won't yet be marked as dynamic. */ | |
1953 | if (h->dynindx == -1 | |
1954 | && !h->forced_local) | |
1955 | { | |
1956 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
1957 | return FALSE; | |
1958 | } | |
1959 | ||
1960 | /* If that succeeded, we know we'll be keeping all the | |
1961 | relocs. */ | |
1962 | if (h->dynindx != -1) | |
1963 | goto keep; | |
1964 | } | |
84e94c90 NC |
1965 | |
1966 | eh->dyn_relocs = NULL; | |
1967 | ||
1968 | keep: ; | |
1969 | } | |
1970 | ||
1971 | /* Finally, allocate space. */ | |
1972 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1973 | { | |
1974 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
1975 | sreloc->size += p->count * sizeof (Elf32_External_Rela); | |
1976 | } | |
1977 | ||
1978 | return TRUE; | |
1979 | } | |
1980 | ||
63c1f59d AM |
1981 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to |
1982 | read-only sections. */ | |
84e94c90 NC |
1983 | |
1984 | static bfd_boolean | |
63c1f59d | 1985 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info_p) |
84e94c90 | 1986 | { |
63c1f59d | 1987 | asection *sec; |
84e94c90 | 1988 | |
63c1f59d AM |
1989 | if (h->root.type == bfd_link_hash_indirect) |
1990 | return TRUE; | |
84e94c90 | 1991 | |
63c1f59d AM |
1992 | sec = readonly_dynrelocs (h); |
1993 | if (sec != NULL) | |
1994 | { | |
1995 | struct bfd_link_info *info = (struct bfd_link_info *) info_p; | |
84e94c90 | 1996 | |
63c1f59d AM |
1997 | info->flags |= DF_TEXTREL; |
1998 | info->callbacks->minfo | |
c1c8c1ef | 1999 | (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"), |
63c1f59d | 2000 | sec->owner, h->root.root.string, sec); |
84e94c90 | 2001 | |
63c1f59d AM |
2002 | /* Not an error, just cut short the traversal. */ |
2003 | return FALSE; | |
84e94c90 NC |
2004 | } |
2005 | return TRUE; | |
2006 | } | |
2007 | ||
2008 | /* Set the sizes of the dynamic sections. */ | |
2009 | ||
2010 | static bfd_boolean | |
2011 | lm32_elf_size_dynamic_sections (bfd *output_bfd, | |
07d6d2b8 | 2012 | struct bfd_link_info *info) |
84e94c90 NC |
2013 | { |
2014 | struct elf_lm32_link_hash_table *htab; | |
2015 | bfd *dynobj; | |
2016 | asection *s; | |
2017 | bfd_boolean relocs; | |
2018 | bfd *ibfd; | |
2019 | ||
2020 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
2021 | if (htab == NULL) |
2022 | return FALSE; | |
2023 | ||
84e94c90 NC |
2024 | dynobj = htab->root.dynobj; |
2025 | BFD_ASSERT (dynobj != NULL); | |
2026 | ||
2027 | if (htab->root.dynamic_sections_created) | |
2028 | { | |
2029 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 2030 | if (bfd_link_executable (info) && !info->nointerp) |
84e94c90 | 2031 | { |
3d4d4302 | 2032 | s = bfd_get_linker_section (dynobj, ".interp"); |
84e94c90 NC |
2033 | BFD_ASSERT (s != NULL); |
2034 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; | |
2035 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2036 | } | |
2037 | } | |
2038 | ||
2039 | /* Set up .got offsets for local syms, and space for local dynamic | |
2040 | relocs. */ | |
c72f2fb2 | 2041 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
84e94c90 NC |
2042 | { |
2043 | bfd_signed_vma *local_got; | |
2044 | bfd_signed_vma *end_local_got; | |
2045 | bfd_size_type locsymcount; | |
2046 | Elf_Internal_Shdr *symtab_hdr; | |
2047 | asection *srel; | |
2048 | ||
2049 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) | |
07d6d2b8 | 2050 | continue; |
84e94c90 NC |
2051 | |
2052 | for (s = ibfd->sections; s != NULL; s = s->next) | |
07d6d2b8 AM |
2053 | { |
2054 | struct elf_dyn_relocs *p; | |
2055 | ||
2056 | for (p = ((struct elf_dyn_relocs *) | |
2057 | elf_section_data (s)->local_dynrel); | |
2058 | p != NULL; | |
2059 | p = p->next) | |
2060 | { | |
2061 | if (! bfd_is_abs_section (p->sec) | |
2062 | && bfd_is_abs_section (p->sec->output_section)) | |
2063 | { | |
2064 | /* Input section has been discarded, either because | |
2065 | it is a copy of a linkonce section or due to | |
2066 | linker script /DISCARD/, so we'll be discarding | |
2067 | the relocs too. */ | |
2068 | } | |
2069 | else if (p->count != 0) | |
2070 | { | |
2071 | srel = elf_section_data (p->sec)->sreloc; | |
2072 | srel->size += p->count * sizeof (Elf32_External_Rela); | |
2073 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) | |
2074 | info->flags |= DF_TEXTREL; | |
2075 | } | |
2076 | } | |
2077 | } | |
84e94c90 NC |
2078 | |
2079 | local_got = elf_local_got_refcounts (ibfd); | |
2080 | if (!local_got) | |
07d6d2b8 | 2081 | continue; |
84e94c90 NC |
2082 | |
2083 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2084 | locsymcount = symtab_hdr->sh_info; | |
2085 | end_local_got = local_got + locsymcount; | |
ce558b89 AM |
2086 | s = htab->root.sgot; |
2087 | srel = htab->root.srelgot; | |
84e94c90 | 2088 | for (; local_got < end_local_got; ++local_got) |
07d6d2b8 AM |
2089 | { |
2090 | if (*local_got > 0) | |
2091 | { | |
2092 | *local_got = s->size; | |
2093 | s->size += 4; | |
2094 | if (bfd_link_pic (info)) | |
2095 | srel->size += sizeof (Elf32_External_Rela); | |
2096 | } | |
2097 | else | |
2098 | *local_got = (bfd_vma) -1; | |
2099 | } | |
84e94c90 NC |
2100 | } |
2101 | ||
2102 | /* Allocate global sym .plt and .got entries, and space for global | |
2103 | sym dynamic relocs. */ | |
2104 | elf_link_hash_traverse (&htab->root, allocate_dynrelocs, info); | |
2105 | ||
2106 | /* We now have determined the sizes of the various dynamic sections. | |
2107 | Allocate memory for them. */ | |
2108 | relocs = FALSE; | |
2109 | for (s = dynobj->sections; s != NULL; s = s->next) | |
2110 | { | |
2111 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
07d6d2b8 | 2112 | continue; |
84e94c90 | 2113 | |
ce558b89 | 2114 | if (s == htab->root.splt |
07d6d2b8 AM |
2115 | || s == htab->root.sgot |
2116 | || s == htab->root.sgotplt | |
84e94c90 | 2117 | || s == htab->sdynbss) |
07d6d2b8 AM |
2118 | { |
2119 | /* Strip this section if we don't need it; see the | |
2120 | comment below. */ | |
2121 | } | |
fd361982 | 2122 | else if (CONST_STRNEQ (bfd_section_name (s), ".rela")) |
07d6d2b8 AM |
2123 | { |
2124 | if (s->size != 0 && s != htab->root.srelplt) | |
2125 | relocs = TRUE; | |
2126 | ||
2127 | /* We use the reloc_count field as a counter if we need | |
2128 | to copy relocs into the output file. */ | |
2129 | s->reloc_count = 0; | |
2130 | } | |
84e94c90 NC |
2131 | else |
2132 | /* It's not one of our sections, so don't allocate space. */ | |
2133 | continue; | |
2134 | ||
2135 | if (s->size == 0) | |
07d6d2b8 AM |
2136 | { |
2137 | /* If we don't need this section, strip it from the | |
2138 | output file. This is mostly to handle .rela.bss and | |
2139 | .rela.plt. We must create both sections in | |
2140 | create_dynamic_sections, because they must be created | |
2141 | before the linker maps input sections to output | |
2142 | sections. The linker does that before | |
2143 | adjust_dynamic_symbol is called, and it is that | |
2144 | function which decides whether anything needs to go | |
2145 | into these sections. */ | |
2146 | s->flags |= SEC_EXCLUDE; | |
2147 | continue; | |
2148 | } | |
84e94c90 NC |
2149 | |
2150 | if ((s->flags & SEC_HAS_CONTENTS) == 0) | |
2151 | continue; | |
2152 | ||
2153 | /* Allocate memory for the section contents. We use bfd_zalloc | |
07d6d2b8 AM |
2154 | here in case unused entries are not reclaimed before the |
2155 | section's contents are written out. This should not happen, | |
2156 | but this way if it does, we get a R_LM32_NONE reloc instead | |
2157 | of garbage. */ | |
84e94c90 NC |
2158 | s->contents = bfd_zalloc (dynobj, s->size); |
2159 | if (s->contents == NULL) | |
07d6d2b8 | 2160 | return FALSE; |
84e94c90 NC |
2161 | } |
2162 | ||
2163 | if (htab->root.dynamic_sections_created) | |
2164 | { | |
2165 | /* Add some entries to the .dynamic section. We fill in the | |
2166 | values later, in lm32_elf_finish_dynamic_sections, but we | |
2167 | must add the entries now so that we get the correct size for | |
2168 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2169 | dynamic linker and used by the debugger. */ | |
2170 | #define add_dynamic_entry(TAG, VAL) \ | |
2171 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) | |
2172 | ||
0e1862bb | 2173 | if (bfd_link_executable (info)) |
84e94c90 NC |
2174 | { |
2175 | if (! add_dynamic_entry (DT_DEBUG, 0)) | |
2176 | return FALSE; | |
2177 | } | |
2178 | ||
ce558b89 | 2179 | if (htab->root.splt->size != 0) |
07d6d2b8 AM |
2180 | { |
2181 | if (! add_dynamic_entry (DT_PLTGOT, 0) | |
2182 | || ! add_dynamic_entry (DT_PLTRELSZ, 0) | |
2183 | || ! add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2184 | || ! add_dynamic_entry (DT_JMPREL, 0)) | |
2185 | return FALSE; | |
2186 | } | |
84e94c90 NC |
2187 | |
2188 | if (relocs) | |
07d6d2b8 AM |
2189 | { |
2190 | if (! add_dynamic_entry (DT_RELA, 0) | |
2191 | || ! add_dynamic_entry (DT_RELASZ, 0) | |
2192 | || ! add_dynamic_entry (DT_RELAENT, | |
2193 | sizeof (Elf32_External_Rela))) | |
2194 | return FALSE; | |
2195 | ||
2196 | /* If any dynamic relocs apply to a read-only section, | |
2197 | then we need a DT_TEXTREL entry. */ | |
2198 | if ((info->flags & DF_TEXTREL) == 0) | |
2199 | elf_link_hash_traverse (&htab->root, maybe_set_textrel, info); | |
2200 | ||
2201 | if ((info->flags & DF_TEXTREL) != 0) | |
2202 | { | |
2203 | if (! add_dynamic_entry (DT_TEXTREL, 0)) | |
2204 | return FALSE; | |
2205 | } | |
2206 | } | |
84e94c90 NC |
2207 | } |
2208 | #undef add_dynamic_entry | |
2209 | ||
2210 | /* Allocate .rofixup section. */ | |
2211 | if (IS_FDPIC (output_bfd)) | |
2212 | { | |
2213 | struct weak_symbol_list *list_start = NULL, *list_end = NULL; | |
2214 | int rgot_weak_count = 0; | |
2215 | int r32_count = 0; | |
2216 | int rgot_count = 0; | |
2217 | /* Look for deleted sections. */ | |
c72f2fb2 | 2218 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
07d6d2b8 AM |
2219 | { |
2220 | for (s = ibfd->sections; s != NULL; s = s->next) | |
2221 | { | |
2222 | if (s->reloc_count) | |
2223 | { | |
2224 | /* Count relocs that need .rofixup entires. */ | |
2225 | Elf_Internal_Rela *internal_relocs, *end; | |
2226 | internal_relocs = elf_section_data (s)->relocs; | |
2227 | if (internal_relocs == NULL) | |
2228 | internal_relocs = (_bfd_elf_link_read_relocs (ibfd, s, NULL, NULL, FALSE)); | |
2229 | if (internal_relocs != NULL) | |
2230 | { | |
2231 | end = internal_relocs + s->reloc_count; | |
2232 | while (internal_relocs < end) | |
2233 | { | |
2234 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2235 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
2236 | unsigned long r_symndx; | |
2237 | struct elf_link_hash_entry *h; | |
2238 | ||
2239 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; | |
2240 | sym_hashes = elf_sym_hashes (ibfd); | |
2241 | r_symndx = ELF32_R_SYM (internal_relocs->r_info); | |
2242 | h = NULL; | |
2243 | if (r_symndx < symtab_hdr->sh_info) | |
2244 | { | |
2245 | } | |
2246 | else | |
2247 | { | |
2248 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
2249 | while (h->root.type == bfd_link_hash_indirect | |
2250 | || h->root.type == bfd_link_hash_warning) | |
2251 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2252 | } | |
2253 | ||
2254 | /* Don't generate entries for weak symbols. */ | |
2255 | if (!h || (h && h->root.type != bfd_link_hash_undefweak)) | |
2256 | { | |
fd361982 | 2257 | if (!discarded_section (s) && !((bfd_section_flags (s) & SEC_ALLOC) == 0)) |
07d6d2b8 AM |
2258 | { |
2259 | switch (ELF32_R_TYPE (internal_relocs->r_info)) | |
2260 | { | |
2261 | case R_LM32_32: | |
2262 | r32_count++; | |
2263 | break; | |
2264 | case R_LM32_16_GOT: | |
2265 | rgot_count++; | |
2266 | break; | |
2267 | } | |
2268 | } | |
2269 | } | |
2270 | else | |
2271 | { | |
2272 | struct weak_symbol_list *current, *new_entry; | |
2273 | /* Is this symbol already in the list? */ | |
2274 | for (current = list_start; current; current = current->next) | |
2275 | { | |
2276 | if (!strcmp (current->name, h->root.root.string)) | |
2277 | break; | |
2278 | } | |
fd361982 | 2279 | if (!current && !discarded_section (s) && (bfd_section_flags (s) & SEC_ALLOC)) |
07d6d2b8 AM |
2280 | { |
2281 | /* Will this have an entry in the GOT. */ | |
2282 | if (ELF32_R_TYPE (internal_relocs->r_info) == R_LM32_16_GOT) | |
2283 | { | |
2284 | /* Create a new entry. */ | |
2285 | new_entry = malloc (sizeof (struct weak_symbol_list)); | |
2286 | if (!new_entry) | |
2287 | return FALSE; | |
2288 | new_entry->name = h->root.root.string; | |
2289 | new_entry->next = NULL; | |
2290 | /* Add to list */ | |
2291 | if (list_start == NULL) | |
2292 | { | |
2293 | list_start = new_entry; | |
2294 | list_end = new_entry; | |
2295 | } | |
2296 | else | |
2297 | { | |
2298 | list_end->next = new_entry; | |
2299 | list_end = new_entry; | |
2300 | } | |
2301 | /* Increase count of undefined weak symbols in the got. */ | |
2302 | rgot_weak_count++; | |
2303 | } | |
2304 | } | |
2305 | } | |
2306 | internal_relocs++; | |
2307 | } | |
2308 | } | |
2309 | else | |
2310 | return FALSE; | |
2311 | } | |
2312 | } | |
2313 | } | |
84e94c90 NC |
2314 | /* Free list. */ |
2315 | while (list_start) | |
07d6d2b8 AM |
2316 | { |
2317 | list_end = list_start->next; | |
2318 | free (list_start); | |
2319 | list_start = list_end; | |
2320 | } | |
84e94c90 NC |
2321 | |
2322 | /* Size sections. */ | |
ce558b89 AM |
2323 | lm32fdpic_fixup32_section (info)->size |
2324 | = (r32_count + (htab->root.sgot->size / 4) - rgot_weak_count + 1) * 4; | |
84e94c90 | 2325 | if (lm32fdpic_fixup32_section (info)->size == 0) |
07d6d2b8 | 2326 | lm32fdpic_fixup32_section (info)->flags |= SEC_EXCLUDE; |
84e94c90 | 2327 | else |
07d6d2b8 AM |
2328 | { |
2329 | lm32fdpic_fixup32_section (info)->contents = | |
2330 | bfd_zalloc (dynobj, lm32fdpic_fixup32_section (info)->size); | |
2331 | if (lm32fdpic_fixup32_section (info)->contents == NULL) | |
2332 | return FALSE; | |
2333 | } | |
84e94c90 NC |
2334 | } |
2335 | ||
2336 | return TRUE; | |
2337 | } | |
2338 | ||
2339 | /* Create dynamic sections when linking against a dynamic object. */ | |
2340 | ||
2341 | static bfd_boolean | |
2342 | lm32_elf_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) | |
2343 | { | |
2344 | struct elf_lm32_link_hash_table *htab; | |
2345 | flagword flags, pltflags; | |
2346 | asection *s; | |
2347 | const struct elf_backend_data *bed = get_elf_backend_data (abfd); | |
2348 | int ptralign = 2; /* 32bit */ | |
2349 | ||
2350 | htab = lm32_elf_hash_table (info); | |
4dfe6ac6 NC |
2351 | if (htab == NULL) |
2352 | return FALSE; | |
84e94c90 NC |
2353 | |
2354 | /* Make sure we have a GOT - For the case where we have a dynamic object | |
2355 | but none of the relocs in check_relocs */ | |
ce558b89 | 2356 | if (!_bfd_elf_create_got_section (abfd, info)) |
84e94c90 NC |
2357 | return FALSE; |
2358 | if (IS_FDPIC (abfd) && (htab->sfixup32 == NULL)) | |
2359 | { | |
2360 | if (! create_rofixup_section (abfd, info)) | |
07d6d2b8 | 2361 | return FALSE; |
84e94c90 NC |
2362 | } |
2363 | ||
2364 | /* We need to create .plt, .rel[a].plt, .got, .got.plt, .dynbss, and | |
2365 | .rel[a].bss sections. */ | |
2366 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
07d6d2b8 | 2367 | | SEC_LINKER_CREATED); |
84e94c90 NC |
2368 | |
2369 | pltflags = flags; | |
2370 | pltflags |= SEC_CODE; | |
2371 | if (bed->plt_not_loaded) | |
2372 | pltflags &= ~ (SEC_LOAD | SEC_HAS_CONTENTS); | |
2373 | if (bed->plt_readonly) | |
2374 | pltflags |= SEC_READONLY; | |
2375 | ||
3d4d4302 | 2376 | s = bfd_make_section_anyway_with_flags (abfd, ".plt", pltflags); |
ce558b89 | 2377 | htab->root.splt = s; |
84e94c90 | 2378 | if (s == NULL |
fd361982 | 2379 | || !bfd_set_section_alignment (s, bed->plt_alignment)) |
84e94c90 NC |
2380 | return FALSE; |
2381 | ||
2382 | if (bed->want_plt_sym) | |
2383 | { | |
2384 | /* Define the symbol _PROCEDURE_LINKAGE_TABLE_ at the start of the | |
07d6d2b8 | 2385 | .plt section. */ |
84e94c90 NC |
2386 | struct bfd_link_hash_entry *bh = NULL; |
2387 | struct elf_link_hash_entry *h; | |
2388 | ||
2389 | if (! (_bfd_generic_link_add_one_symbol | |
07d6d2b8 AM |
2390 | (info, abfd, "_PROCEDURE_LINKAGE_TABLE_", BSF_GLOBAL, s, |
2391 | (bfd_vma) 0, NULL, FALSE, | |
2392 | get_elf_backend_data (abfd)->collect, &bh))) | |
2393 | return FALSE; | |
84e94c90 NC |
2394 | h = (struct elf_link_hash_entry *) bh; |
2395 | h->def_regular = 1; | |
2396 | h->type = STT_OBJECT; | |
2397 | htab->root.hplt = h; | |
2398 | ||
0e1862bb | 2399 | if (bfd_link_pic (info) |
07d6d2b8 AM |
2400 | && ! bfd_elf_link_record_dynamic_symbol (info, h)) |
2401 | return FALSE; | |
84e94c90 NC |
2402 | } |
2403 | ||
3d4d4302 AM |
2404 | s = bfd_make_section_anyway_with_flags (abfd, |
2405 | bed->default_use_rela_p | |
2406 | ? ".rela.plt" : ".rel.plt", | |
2407 | flags | SEC_READONLY); | |
ce558b89 | 2408 | htab->root.srelplt = s; |
84e94c90 | 2409 | if (s == NULL |
fd361982 | 2410 | || !bfd_set_section_alignment (s, ptralign)) |
84e94c90 NC |
2411 | return FALSE; |
2412 | ||
ce558b89 AM |
2413 | if (htab->root.sgot == NULL |
2414 | && !_bfd_elf_create_got_section (abfd, info)) | |
84e94c90 NC |
2415 | return FALSE; |
2416 | ||
84e94c90 NC |
2417 | if (bed->want_dynbss) |
2418 | { | |
2419 | /* The .dynbss section is a place to put symbols which are defined | |
07d6d2b8 AM |
2420 | by dynamic objects, are referenced by regular objects, and are |
2421 | not functions. We must allocate space for them in the process | |
2422 | image and use a R_*_COPY reloc to tell the dynamic linker to | |
2423 | initialize them at run time. The linker script puts the .dynbss | |
2424 | section into the .bss section of the final image. */ | |
3d4d4302 AM |
2425 | s = bfd_make_section_anyway_with_flags (abfd, ".dynbss", |
2426 | SEC_ALLOC | SEC_LINKER_CREATED); | |
84e94c90 NC |
2427 | htab->sdynbss = s; |
2428 | if (s == NULL) | |
07d6d2b8 | 2429 | return FALSE; |
84e94c90 | 2430 | /* The .rel[a].bss section holds copy relocs. This section is not |
07d6d2b8 AM |
2431 | normally needed. We need to create it here, though, so that the |
2432 | linker will map it to an output section. We can't just create it | |
2433 | only if we need it, because we will not know whether we need it | |
2434 | until we have seen all the input files, and the first time the | |
2435 | main linker code calls BFD after examining all the input files | |
2436 | (size_dynamic_sections) the input sections have already been | |
2437 | mapped to the output sections. If the section turns out not to | |
2438 | be needed, we can discard it later. We will never need this | |
2439 | section when generating a shared object, since they do not use | |
2440 | copy relocs. */ | |
0e1862bb | 2441 | if (! bfd_link_pic (info)) |
07d6d2b8 AM |
2442 | { |
2443 | s = bfd_make_section_anyway_with_flags (abfd, | |
3d4d4302 AM |
2444 | (bed->default_use_rela_p |
2445 | ? ".rela.bss" : ".rel.bss"), | |
2446 | flags | SEC_READONLY); | |
07d6d2b8 AM |
2447 | htab->srelbss = s; |
2448 | if (s == NULL | |
fd361982 | 2449 | || !bfd_set_section_alignment (s, ptralign)) |
07d6d2b8 AM |
2450 | return FALSE; |
2451 | } | |
84e94c90 NC |
2452 | } |
2453 | ||
2454 | return TRUE; | |
2455 | } | |
2456 | ||
2457 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ | |
2458 | ||
2459 | static void | |
2460 | lm32_elf_copy_indirect_symbol (struct bfd_link_info *info, | |
07d6d2b8 AM |
2461 | struct elf_link_hash_entry *dir, |
2462 | struct elf_link_hash_entry *ind) | |
84e94c90 NC |
2463 | { |
2464 | struct elf_lm32_link_hash_entry * edir; | |
2465 | struct elf_lm32_link_hash_entry * eind; | |
2466 | ||
2467 | edir = (struct elf_lm32_link_hash_entry *) dir; | |
2468 | eind = (struct elf_lm32_link_hash_entry *) ind; | |
2469 | ||
2470 | if (eind->dyn_relocs != NULL) | |
2471 | { | |
2472 | if (edir->dyn_relocs != NULL) | |
07d6d2b8 AM |
2473 | { |
2474 | struct elf_dyn_relocs **pp; | |
2475 | struct elf_dyn_relocs *p; | |
2476 | ||
2477 | /* Add reloc counts against the indirect sym to the direct sym | |
2478 | list. Merge any entries against the same section. */ | |
2479 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL;) | |
2480 | { | |
2481 | struct elf_dyn_relocs *q; | |
2482 | ||
2483 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
2484 | if (q->sec == p->sec) | |
2485 | { | |
2486 | q->pc_count += p->pc_count; | |
2487 | q->count += p->count; | |
2488 | *pp = p->next; | |
2489 | break; | |
2490 | } | |
2491 | if (q == NULL) | |
2492 | pp = &p->next; | |
2493 | } | |
2494 | *pp = edir->dyn_relocs; | |
2495 | } | |
84e94c90 NC |
2496 | |
2497 | edir->dyn_relocs = eind->dyn_relocs; | |
2498 | eind->dyn_relocs = NULL; | |
2499 | } | |
2500 | ||
2501 | _bfd_elf_link_hash_copy_indirect (info, dir, ind); | |
2502 | } | |
2503 | ||
2504 | static bfd_boolean | |
04c3a755 | 2505 | lm32_elf_always_size_sections (bfd *output_bfd, struct bfd_link_info *info) |
84e94c90 | 2506 | { |
0e1862bb | 2507 | if (!bfd_link_relocatable (info)) |
84e94c90 | 2508 | { |
04c3a755 NS |
2509 | if (!bfd_elf_stack_segment_size (output_bfd, info, |
2510 | "__stacksize", DEFAULT_STACK_SIZE)) | |
2511 | return FALSE; | |
84e94c90 | 2512 | |
84e94c90 | 2513 | asection *sec = bfd_get_section_by_name (output_bfd, ".stack"); |
84e94c90 | 2514 | if (sec) |
04c3a755 | 2515 | sec->size = info->stacksize >= 0 ? info->stacksize : 0; |
84e94c90 NC |
2516 | } |
2517 | ||
2518 | return TRUE; | |
2519 | } | |
2520 | ||
84e94c90 NC |
2521 | static bfd_boolean |
2522 | lm32_elf_fdpic_copy_private_bfd_data (bfd *ibfd, bfd *obfd) | |
2523 | { | |
2524 | unsigned i; | |
2525 | ||
2526 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
2527 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
2528 | return TRUE; | |
2529 | ||
e2349352 | 2530 | if (! _bfd_elf_copy_private_bfd_data (ibfd, obfd)) |
84e94c90 NC |
2531 | return FALSE; |
2532 | ||
2533 | if (! elf_tdata (ibfd) || ! elf_tdata (ibfd)->phdr | |
2534 | || ! elf_tdata (obfd) || ! elf_tdata (obfd)->phdr) | |
2535 | return TRUE; | |
2536 | ||
2537 | /* Copy the stack size. */ | |
2538 | for (i = 0; i < elf_elfheader (ibfd)->e_phnum; i++) | |
2539 | if (elf_tdata (ibfd)->phdr[i].p_type == PT_GNU_STACK) | |
2540 | { | |
2541 | Elf_Internal_Phdr *iphdr = &elf_tdata (ibfd)->phdr[i]; | |
2542 | ||
2543 | for (i = 0; i < elf_elfheader (obfd)->e_phnum; i++) | |
2544 | if (elf_tdata (obfd)->phdr[i].p_type == PT_GNU_STACK) | |
2545 | { | |
2546 | memcpy (&elf_tdata (obfd)->phdr[i], iphdr, sizeof (*iphdr)); | |
2547 | ||
2548 | /* Rewrite the phdrs, since we're only called after they were first written. */ | |
2549 | if (bfd_seek (obfd, (bfd_signed_vma) get_elf_backend_data (obfd) | |
2550 | ->s->sizeof_ehdr, SEEK_SET) != 0 | |
2551 | || get_elf_backend_data (obfd)->s->write_out_phdrs (obfd, elf_tdata (obfd)->phdr, | |
2552 | elf_elfheader (obfd)->e_phnum) != 0) | |
2553 | return FALSE; | |
2554 | break; | |
2555 | } | |
2556 | ||
2557 | break; | |
2558 | } | |
2559 | ||
2560 | return TRUE; | |
2561 | } | |
2562 | ||
2563 | ||
07d6d2b8 | 2564 | #define ELF_ARCH bfd_arch_lm32 |
ae95ffa6 | 2565 | #define ELF_TARGET_ID LM32_ELF_DATA |
07d6d2b8 AM |
2566 | #define ELF_MACHINE_CODE EM_LATTICEMICO32 |
2567 | #define ELF_MAXPAGESIZE 0x1000 | |
2568 | ||
2569 | #define TARGET_BIG_SYM lm32_elf32_vec | |
2570 | #define TARGET_BIG_NAME "elf32-lm32" | |
2571 | ||
2572 | #define bfd_elf32_bfd_reloc_type_lookup lm32_reloc_type_lookup | |
2573 | #define bfd_elf32_bfd_reloc_name_lookup lm32_reloc_name_lookup | |
2574 | #define elf_info_to_howto lm32_info_to_howto_rela | |
f3185997 | 2575 | #define elf_info_to_howto_rel NULL |
07d6d2b8 AM |
2576 | #define elf_backend_rela_normal 1 |
2577 | #define elf_backend_object_p lm32_elf_object_p | |
2578 | #define elf_backend_final_write_processing lm32_elf_final_write_processing | |
04c3a755 | 2579 | #define elf_backend_stack_align 8 |
07d6d2b8 AM |
2580 | #define elf_backend_can_gc_sections 1 |
2581 | #define elf_backend_can_refcount 1 | |
2582 | #define elf_backend_gc_mark_hook lm32_elf_gc_mark_hook | |
2583 | #define elf_backend_plt_readonly 1 | |
2584 | #define elf_backend_want_got_plt 1 | |
2585 | #define elf_backend_want_plt_sym 0 | |
2586 | #define elf_backend_got_header_size 12 | |
64f52338 | 2587 | #define elf_backend_dtrel_excludes_plt 1 |
07d6d2b8 AM |
2588 | #define bfd_elf32_bfd_link_hash_table_create lm32_elf_link_hash_table_create |
2589 | #define elf_backend_check_relocs lm32_elf_check_relocs | |
2590 | #define elf_backend_reloc_type_class lm32_elf_reloc_type_class | |
2591 | #define elf_backend_copy_indirect_symbol lm32_elf_copy_indirect_symbol | |
2592 | #define elf_backend_size_dynamic_sections lm32_elf_size_dynamic_sections | |
d00dd7dc | 2593 | #define elf_backend_omit_section_dynsym _bfd_elf_omit_section_dynsym_all |
07d6d2b8 AM |
2594 | #define elf_backend_create_dynamic_sections lm32_elf_create_dynamic_sections |
2595 | #define elf_backend_finish_dynamic_sections lm32_elf_finish_dynamic_sections | |
2596 | #define elf_backend_adjust_dynamic_symbol lm32_elf_adjust_dynamic_symbol | |
2597 | #define elf_backend_finish_dynamic_symbol lm32_elf_finish_dynamic_symbol | |
2598 | #define elf_backend_relocate_section lm32_elf_relocate_section | |
84e94c90 NC |
2599 | |
2600 | #include "elf32-target.h" | |
2601 | ||
2602 | #undef ELF_MAXPAGESIZE | |
2603 | #define ELF_MAXPAGESIZE 0x4000 | |
2604 | ||
2605 | ||
2606 | #undef TARGET_BIG_SYM | |
07d6d2b8 AM |
2607 | #define TARGET_BIG_SYM lm32_elf32_fdpic_vec |
2608 | #undef TARGET_BIG_NAME | |
84e94c90 NC |
2609 | #define TARGET_BIG_NAME "elf32-lm32fdpic" |
2610 | #undef elf32_bed | |
2611 | #define elf32_bed elf32_lm32fdpic_bed | |
2612 | ||
07d6d2b8 AM |
2613 | #undef elf_backend_always_size_sections |
2614 | #define elf_backend_always_size_sections lm32_elf_always_size_sections | |
2615 | #undef bfd_elf32_bfd_copy_private_bfd_data | |
2616 | #define bfd_elf32_bfd_copy_private_bfd_data lm32_elf_fdpic_copy_private_bfd_data | |
84e94c90 NC |
2617 | |
2618 | #include "elf32-target.h" |