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90ace9e9 JT |
1 | /* VAX series support for 32-bit ELF |
2 | Copyright 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002 | |
3 | Free Software Foundation, Inc. | |
4 | Contributed by Matt Thomas <matt@3am-software.com>. | |
5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
24 | #include "bfdlink.h" | |
25 | #include "libbfd.h" | |
26 | #include "elf-bfd.h" | |
27 | #include "elf/vax.h" | |
28 | ||
29 | static reloc_howto_type *reloc_type_lookup | |
30 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
31 | static void rtype_to_howto | |
32 | PARAMS ((bfd *, arelent *, Elf32_Internal_Rela *)); | |
33 | static struct bfd_hash_entry *elf_vax_link_hash_newfunc | |
34 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
35 | static struct bfd_link_hash_table *elf_vax_link_hash_table_create | |
36 | PARAMS ((bfd *)); | |
37 | static boolean elf_vax_check_relocs | |
38 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
39 | const Elf_Internal_Rela *)); | |
40 | static asection *elf_vax_gc_mark_hook | |
1e2f5b6e | 41 | PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, |
90ace9e9 JT |
42 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); |
43 | static boolean elf_vax_gc_sweep_hook | |
44 | PARAMS ((bfd *, struct bfd_link_info *, asection *, | |
45 | const Elf_Internal_Rela *)); | |
46 | static boolean elf_vax_adjust_dynamic_symbol | |
47 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
48 | static boolean elf_vax_size_dynamic_sections | |
49 | PARAMS ((bfd *, struct bfd_link_info *)); | |
50 | static boolean elf_vax_relocate_section | |
51 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
52 | Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
53 | static boolean elf_vax_finish_dynamic_symbol | |
54 | PARAMS ((bfd *, struct bfd_link_info *, struct elf_link_hash_entry *, | |
55 | Elf_Internal_Sym *)); | |
56 | static boolean elf_vax_finish_dynamic_sections | |
57 | PARAMS ((bfd *, struct bfd_link_info *)); | |
58 | ||
59 | static boolean elf32_vax_set_private_flags | |
60 | PARAMS ((bfd *, flagword)); | |
61 | static boolean elf32_vax_merge_private_bfd_data | |
62 | PARAMS ((bfd *, bfd *)); | |
63 | static boolean elf32_vax_print_private_bfd_data | |
64 | PARAMS ((bfd *, PTR)); | |
65 | ||
66 | static reloc_howto_type howto_table[] = { | |
67 | HOWTO (R_VAX_NONE, /* type */ | |
68 | 0, /* rightshift */ | |
69 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
70 | 0, /* bitsize */ | |
71 | false, /* pc_relative */ | |
72 | 0, /* bitpos */ | |
73 | complain_overflow_dont, /* complain_on_overflow */ | |
74 | bfd_elf_generic_reloc, /* special_function */ | |
75 | "R_VAX_NONE", /* name */ | |
76 | false, /* partial_inplace */ | |
77 | 0, /* src_mask */ | |
78 | 0x00000000, /* dst_mask */ | |
79 | false), /* pcrel_offset */ | |
80 | ||
81 | HOWTO (R_VAX_32, /* type */ | |
82 | 0, /* rightshift */ | |
83 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
84 | 32, /* bitsize */ | |
85 | false, /* pc_relative */ | |
86 | 0, /* bitpos */ | |
87 | complain_overflow_bitfield, /* complain_on_overflow */ | |
88 | bfd_elf_generic_reloc, /* special_function */ | |
89 | "R_VAX_32", /* name */ | |
90 | false, /* partial_inplace */ | |
91 | 0, /* src_mask */ | |
92 | 0xffffffff, /* dst_mask */ | |
93 | false), /* pcrel_offset */ | |
94 | ||
95 | HOWTO (R_VAX_16, /* type */ | |
96 | 0, /* rightshift */ | |
97 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
98 | 16, /* bitsize */ | |
99 | false, /* pc_relative */ | |
100 | 0, /* bitpos */ | |
101 | complain_overflow_bitfield, /* complain_on_overflow */ | |
102 | bfd_elf_generic_reloc, /* special_function */ | |
103 | "R_VAX_16", /* name */ | |
104 | false, /* partial_inplace */ | |
105 | 0, /* src_mask */ | |
106 | 0x0000ffff, /* dst_mask */ | |
107 | false), /* pcrel_offset */ | |
108 | ||
109 | HOWTO (R_VAX_8, /* type */ | |
110 | 0, /* rightshift */ | |
111 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
112 | 8, /* bitsize */ | |
113 | false, /* pc_relative */ | |
114 | 0, /* bitpos */ | |
115 | complain_overflow_bitfield, /* complain_on_overflow */ | |
116 | bfd_elf_generic_reloc, /* special_function */ | |
117 | "R_VAX_8", /* name */ | |
118 | false, /* partial_inplace */ | |
119 | 0, /* src_mask */ | |
120 | 0x000000ff, /* dst_mask */ | |
121 | false), /* pcrel_offset */ | |
122 | ||
123 | HOWTO (R_VAX_PC32, /* type */ | |
124 | 0, /* rightshift */ | |
125 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
126 | 32, /* bitsize */ | |
127 | true, /* pc_relative */ | |
128 | 0, /* bitpos */ | |
129 | complain_overflow_bitfield, /* complain_on_overflow */ | |
130 | bfd_elf_generic_reloc, /* special_function */ | |
131 | "R_VAX_PC32", /* name */ | |
132 | false, /* partial_inplace */ | |
133 | 0, /* src_mask */ | |
134 | 0xffffffff, /* dst_mask */ | |
135 | true), /* pcrel_offset */ | |
136 | ||
137 | HOWTO (R_VAX_PC16, /* type */ | |
138 | 0, /* rightshift */ | |
139 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
140 | 16, /* bitsize */ | |
141 | true, /* pc_relative */ | |
142 | 0, /* bitpos */ | |
143 | complain_overflow_signed, /* complain_on_overflow */ | |
144 | bfd_elf_generic_reloc, /* special_function */ | |
145 | "R_VAX_PC16", /* name */ | |
146 | false, /* partial_inplace */ | |
147 | 0, /* src_mask */ | |
148 | 0x0000ffff, /* dst_mask */ | |
149 | true), /* pcrel_offset */ | |
150 | ||
151 | HOWTO (R_VAX_PC8, /* type */ | |
152 | 0, /* rightshift */ | |
153 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
154 | 8, /* bitsize */ | |
155 | true, /* pc_relative */ | |
156 | 0, /* bitpos */ | |
157 | complain_overflow_signed, /* complain_on_overflow */ | |
158 | bfd_elf_generic_reloc, /* special_function */ | |
159 | "R_VAX_PC8", /* name */ | |
160 | false, /* partial_inplace */ | |
161 | 0, /* src_mask */ | |
162 | 0x000000ff, /* dst_mask */ | |
163 | true), /* pcrel_offset */ | |
164 | ||
165 | HOWTO (R_VAX_GOT32, /* type */ | |
166 | 0, /* rightshift */ | |
167 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
168 | 32, /* bitsize */ | |
169 | true, /* pc_relative */ | |
170 | 0, /* bitpos */ | |
171 | complain_overflow_bitfield, /* complain_on_overflow */ | |
172 | bfd_elf_generic_reloc, /* special_function */ | |
173 | "R_VAX_GOT32", /* name */ | |
174 | false, /* partial_inplace */ | |
175 | 0, /* src_mask */ | |
176 | 0xffffffff, /* dst_mask */ | |
177 | true), /* pcrel_offset */ | |
178 | ||
179 | EMPTY_HOWTO (-1), | |
180 | EMPTY_HOWTO (-1), | |
181 | EMPTY_HOWTO (-1), | |
182 | EMPTY_HOWTO (-1), | |
183 | EMPTY_HOWTO (-1), | |
184 | ||
185 | HOWTO (R_VAX_PLT32, /* type */ | |
186 | 0, /* rightshift */ | |
187 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
188 | 32, /* bitsize */ | |
189 | true, /* pc_relative */ | |
190 | 0, /* bitpos */ | |
191 | complain_overflow_bitfield, /* complain_on_overflow */ | |
192 | bfd_elf_generic_reloc, /* special_function */ | |
193 | "R_VAX_PLT32", /* name */ | |
194 | false, /* partial_inplace */ | |
195 | 0, /* src_mask */ | |
196 | 0xffffffff, /* dst_mask */ | |
197 | true), /* pcrel_offset */ | |
198 | ||
199 | EMPTY_HOWTO (-1), | |
200 | EMPTY_HOWTO (-1), | |
201 | EMPTY_HOWTO (-1), | |
202 | EMPTY_HOWTO (-1), | |
203 | EMPTY_HOWTO (-1), | |
204 | ||
205 | HOWTO (R_VAX_COPY, /* type */ | |
206 | 0, /* rightshift */ | |
207 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
208 | 0, /* bitsize */ | |
209 | false, /* pc_relative */ | |
210 | 0, /* bitpos */ | |
211 | complain_overflow_dont, /* complain_on_overflow */ | |
212 | bfd_elf_generic_reloc, /* special_function */ | |
213 | "R_VAX_COPY", /* name */ | |
214 | false, /* partial_inplace */ | |
215 | 0, /* src_mask */ | |
216 | 0xffffffff, /* dst_mask */ | |
217 | false), /* pcrel_offset */ | |
218 | ||
219 | HOWTO (R_VAX_GLOB_DAT, /* type */ | |
220 | 0, /* rightshift */ | |
221 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
222 | 32, /* bitsize */ | |
223 | false, /* pc_relative */ | |
224 | 0, /* bitpos */ | |
225 | complain_overflow_dont, /* complain_on_overflow */ | |
226 | bfd_elf_generic_reloc, /* special_function */ | |
227 | "R_VAX_GLOB_DAT", /* name */ | |
228 | false, /* partial_inplace */ | |
229 | 0, /* src_mask */ | |
230 | 0xffffffff, /* dst_mask */ | |
231 | false), /* pcrel_offset */ | |
232 | ||
233 | HOWTO (R_VAX_JMP_SLOT, /* type */ | |
234 | 0, /* rightshift */ | |
235 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
236 | 32, /* bitsize */ | |
237 | false, /* pc_relative */ | |
238 | 0, /* bitpos */ | |
239 | complain_overflow_dont, /* complain_on_overflow */ | |
240 | bfd_elf_generic_reloc, /* special_function */ | |
241 | "R_VAX_JMP_SLOT", /* name */ | |
242 | false, /* partial_inplace */ | |
243 | 0, /* src_mask */ | |
244 | 0xffffffff, /* dst_mask */ | |
245 | false), /* pcrel_offset */ | |
246 | ||
247 | HOWTO (R_VAX_RELATIVE, /* type */ | |
248 | 0, /* rightshift */ | |
249 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
250 | 32, /* bitsize */ | |
251 | false, /* pc_relative */ | |
252 | 0, /* bitpos */ | |
253 | complain_overflow_dont, /* complain_on_overflow */ | |
254 | bfd_elf_generic_reloc, /* special_function */ | |
255 | "R_VAX_RELATIVE", /* name */ | |
256 | false, /* partial_inplace */ | |
257 | 0, /* src_mask */ | |
258 | 0xffffffff, /* dst_mask */ | |
259 | false), /* pcrel_offset */ | |
260 | ||
261 | /* GNU extension to record C++ vtable hierarchy */ | |
262 | HOWTO (R_VAX_GNU_VTINHERIT, /* type */ | |
263 | 0, /* rightshift */ | |
264 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
265 | 0, /* bitsize */ | |
266 | false, /* pc_relative */ | |
267 | 0, /* bitpos */ | |
268 | complain_overflow_dont, /* complain_on_overflow */ | |
269 | NULL, /* special_function */ | |
270 | "R_VAX_GNU_VTINHERIT", /* name */ | |
271 | false, /* partial_inplace */ | |
272 | 0, /* src_mask */ | |
273 | 0, /* dst_mask */ | |
274 | false), /* pcrel_offset */ | |
275 | ||
276 | /* GNU extension to record C++ vtable member usage */ | |
277 | HOWTO (R_VAX_GNU_VTENTRY, /* type */ | |
278 | 0, /* rightshift */ | |
279 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
280 | 0, /* bitsize */ | |
281 | false, /* pc_relative */ | |
282 | 0, /* bitpos */ | |
283 | complain_overflow_dont, /* complain_on_overflow */ | |
284 | _bfd_elf_rel_vtable_reloc_fn, /* special_function */ | |
285 | "R_VAX_GNU_VTENTRY", /* name */ | |
286 | false, /* partial_inplace */ | |
287 | 0, /* src_mask */ | |
288 | 0, /* dst_mask */ | |
289 | false), /* pcrel_offset */ | |
290 | }; | |
291 | ||
292 | static void | |
293 | rtype_to_howto (abfd, cache_ptr, dst) | |
294 | bfd *abfd ATTRIBUTE_UNUSED; | |
295 | arelent *cache_ptr; | |
296 | Elf_Internal_Rela *dst; | |
297 | { | |
298 | BFD_ASSERT (ELF32_R_TYPE(dst->r_info) < (unsigned int) R_VAX_max); | |
299 | cache_ptr->howto = &howto_table[ELF32_R_TYPE(dst->r_info)]; | |
300 | } | |
301 | ||
302 | #define elf_info_to_howto rtype_to_howto | |
303 | ||
304 | static const struct | |
305 | { | |
306 | bfd_reloc_code_real_type bfd_val; | |
307 | int elf_val; | |
308 | } reloc_map[] = { | |
309 | { BFD_RELOC_NONE, R_VAX_NONE }, | |
310 | { BFD_RELOC_32, R_VAX_32 }, | |
311 | { BFD_RELOC_16, R_VAX_16 }, | |
312 | { BFD_RELOC_8, R_VAX_8 }, | |
313 | { BFD_RELOC_32_PCREL, R_VAX_PC32 }, | |
314 | { BFD_RELOC_16_PCREL, R_VAX_PC16 }, | |
315 | { BFD_RELOC_8_PCREL, R_VAX_PC8 }, | |
316 | { BFD_RELOC_32_GOT_PCREL, R_VAX_GOT32 }, | |
317 | { BFD_RELOC_32_PLT_PCREL, R_VAX_PLT32 }, | |
318 | { BFD_RELOC_NONE, R_VAX_COPY }, | |
319 | { BFD_RELOC_VAX_GLOB_DAT, R_VAX_GLOB_DAT }, | |
320 | { BFD_RELOC_VAX_JMP_SLOT, R_VAX_JMP_SLOT }, | |
321 | { BFD_RELOC_VAX_RELATIVE, R_VAX_RELATIVE }, | |
322 | { BFD_RELOC_CTOR, R_VAX_32 }, | |
323 | { BFD_RELOC_VTABLE_INHERIT, R_VAX_GNU_VTINHERIT }, | |
324 | { BFD_RELOC_VTABLE_ENTRY, R_VAX_GNU_VTENTRY }, | |
325 | }; | |
326 | ||
327 | static reloc_howto_type * | |
328 | reloc_type_lookup (abfd, code) | |
329 | bfd *abfd ATTRIBUTE_UNUSED; | |
330 | bfd_reloc_code_real_type code; | |
331 | { | |
332 | unsigned int i; | |
333 | for (i = 0; i < sizeof (reloc_map) / sizeof (reloc_map[0]); i++) | |
334 | { | |
335 | if (reloc_map[i].bfd_val == code) | |
336 | return &howto_table[reloc_map[i].elf_val]; | |
337 | } | |
338 | return 0; | |
339 | } | |
340 | ||
341 | #define bfd_elf32_bfd_reloc_type_lookup reloc_type_lookup | |
342 | #define ELF_ARCH bfd_arch_vax | |
343 | /* end code generated by elf.el */ | |
90ace9e9 JT |
344 | \f |
345 | /* Functions for the VAX ELF linker. */ | |
346 | ||
347 | /* The name of the dynamic interpreter. This is put in the .interp | |
348 | section. */ | |
349 | ||
350 | #define ELF_DYNAMIC_INTERPRETER "/usr/libexec/ld.elf_so" | |
351 | ||
352 | /* The size in bytes of an entry in the procedure linkage table. */ | |
353 | ||
354 | #define PLT_ENTRY_SIZE 12 | |
355 | ||
356 | /* The first entry in a procedure linkage table looks like this. See | |
357 | the SVR4 ABI VAX supplement to see how this works. */ | |
358 | ||
359 | static const bfd_byte elf_vax_plt0_entry[PLT_ENTRY_SIZE] = | |
360 | { | |
361 | 0xdd, 0xef, /* pushl l^ */ | |
362 | 0, 0, 0, 0, /* offset to .plt.got + 4 */ | |
363 | 0x17, 0xff, /* jmp @L^(pc) */ | |
364 | 0, 0, 0, 0, /* offset to .plt.got + 8 */ | |
365 | }; | |
366 | ||
367 | /* Subsequent entries in a procedure linkage table look like this. */ | |
368 | ||
369 | static const bfd_byte elf_vax_plt_entry[PLT_ENTRY_SIZE] = | |
370 | { | |
371 | 0x40, 0x00, /* .word ^M<r6> */ | |
372 | 0x16, 0xef, /* jsb L^(pc) */ | |
373 | 0, 0, 0, 0, /* replaced with offset to start of .plt */ | |
374 | 0, 0, 0, 0, /* index into .rela.plt */ | |
375 | }; | |
376 | ||
377 | /* The VAX linker needs to keep track of the number of relocs that it | |
378 | decides to copy in check_relocs for each symbol. This is so that it | |
379 | can discard PC relative relocs if it doesn't need them when linking | |
380 | with -Bsymbolic. We store the information in a field extending the | |
381 | regular ELF linker hash table. */ | |
382 | ||
383 | /* This structure keeps track of the number of PC relative relocs we have | |
384 | copied for a given symbol. */ | |
385 | ||
386 | struct elf_vax_pcrel_relocs_copied | |
387 | { | |
388 | /* Next section. */ | |
389 | struct elf_vax_pcrel_relocs_copied *next; | |
390 | /* A section in dynobj. */ | |
391 | asection *section; | |
392 | /* Number of relocs copied in this section. */ | |
393 | bfd_size_type count; | |
394 | }; | |
395 | ||
396 | /* VAX ELF linker hash entry. */ | |
397 | ||
398 | struct elf_vax_link_hash_entry | |
399 | { | |
400 | struct elf_link_hash_entry root; | |
401 | ||
402 | /* Number of PC relative relocs copied for this symbol. */ | |
403 | struct elf_vax_pcrel_relocs_copied *pcrel_relocs_copied; | |
404 | ||
405 | bfd_vma got_addend; | |
406 | }; | |
407 | ||
408 | /* VAX ELF linker hash table. */ | |
409 | ||
410 | struct elf_vax_link_hash_table | |
411 | { | |
412 | struct elf_link_hash_table root; | |
413 | }; | |
414 | ||
415 | /* Declare this now that the above structures are defined. */ | |
416 | ||
417 | static boolean elf_vax_discard_copies | |
418 | PARAMS ((struct elf_vax_link_hash_entry *, PTR)); | |
419 | ||
420 | /* Traverse an VAX ELF linker hash table. */ | |
421 | ||
422 | #define elf_vax_link_hash_traverse(table, func, info) \ | |
423 | (elf_link_hash_traverse \ | |
424 | (&(table)->root, \ | |
425 | (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \ | |
426 | (info))) | |
427 | ||
428 | /* Get the VAX ELF linker hash table from a link_info structure. */ | |
429 | ||
430 | #define elf_vax_hash_table(p) \ | |
431 | ((struct elf_vax_link_hash_table *) (p)->hash) | |
432 | ||
433 | /* Create an entry in an VAX ELF linker hash table. */ | |
434 | ||
435 | static struct bfd_hash_entry * | |
436 | elf_vax_link_hash_newfunc (entry, table, string) | |
437 | struct bfd_hash_entry *entry; | |
438 | struct bfd_hash_table *table; | |
439 | const char *string; | |
440 | { | |
441 | struct elf_vax_link_hash_entry *ret = | |
442 | (struct elf_vax_link_hash_entry *) entry; | |
443 | ||
444 | /* Allocate the structure if it has not already been allocated by a | |
445 | subclass. */ | |
446 | if (ret == (struct elf_vax_link_hash_entry *) NULL) | |
447 | ret = ((struct elf_vax_link_hash_entry *) | |
448 | bfd_hash_allocate (table, | |
449 | sizeof (struct elf_vax_link_hash_entry))); | |
450 | if (ret == (struct elf_vax_link_hash_entry *) NULL) | |
451 | return (struct bfd_hash_entry *) ret; | |
452 | ||
453 | /* Call the allocation method of the superclass. */ | |
454 | ret = ((struct elf_vax_link_hash_entry *) | |
455 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
456 | table, string)); | |
457 | if (ret != (struct elf_vax_link_hash_entry *) NULL) | |
458 | { | |
459 | ret->pcrel_relocs_copied = NULL; | |
460 | } | |
461 | ||
462 | return (struct bfd_hash_entry *) ret; | |
463 | } | |
464 | ||
465 | /* Create an VAX ELF linker hash table. */ | |
466 | ||
467 | static struct bfd_link_hash_table * | |
468 | elf_vax_link_hash_table_create (abfd) | |
469 | bfd *abfd; | |
470 | { | |
471 | struct elf_vax_link_hash_table *ret; | |
472 | bfd_size_type amt = sizeof (struct elf_vax_link_hash_table); | |
473 | ||
474 | ret = (struct elf_vax_link_hash_table *) bfd_malloc (amt); | |
475 | if (ret == (struct elf_vax_link_hash_table *) NULL) | |
476 | return NULL; | |
477 | ||
478 | if (! _bfd_elf_link_hash_table_init (&ret->root, abfd, | |
479 | elf_vax_link_hash_newfunc)) | |
480 | { | |
481 | free (ret); | |
482 | return NULL; | |
483 | } | |
484 | ||
485 | return &ret->root.root; | |
486 | } | |
487 | ||
488 | /* Keep vax-specific flags in the ELF header */ | |
489 | static boolean | |
490 | elf32_vax_set_private_flags (abfd, flags) | |
491 | bfd *abfd; | |
492 | flagword flags; | |
493 | { | |
494 | elf_elfheader (abfd)->e_flags = flags; | |
495 | elf_flags_init (abfd) = true; | |
496 | return true; | |
497 | } | |
498 | ||
499 | /* Merge backend specific data from an object file to the output | |
500 | object file when linking. */ | |
501 | static boolean | |
502 | elf32_vax_merge_private_bfd_data (ibfd, obfd) | |
503 | bfd *ibfd; | |
504 | bfd *obfd; | |
505 | { | |
506 | flagword out_flags; | |
507 | flagword in_flags; | |
508 | ||
509 | if ( bfd_get_flavour (ibfd) != bfd_target_elf_flavour | |
510 | || bfd_get_flavour (obfd) != bfd_target_elf_flavour) | |
511 | return true; | |
512 | ||
513 | in_flags = elf_elfheader (ibfd)->e_flags; | |
514 | out_flags = elf_elfheader (obfd)->e_flags; | |
515 | ||
516 | if (!elf_flags_init (obfd)) | |
517 | { | |
518 | elf_flags_init (obfd) = true; | |
519 | elf_elfheader (obfd)->e_flags = in_flags; | |
520 | } | |
521 | ||
522 | return true; | |
523 | } | |
524 | ||
525 | /* Display the flags field */ | |
526 | static boolean | |
527 | elf32_vax_print_private_bfd_data (abfd, ptr) | |
528 | bfd *abfd; | |
529 | PTR ptr; | |
530 | { | |
531 | FILE *file = (FILE *) ptr; | |
532 | ||
533 | BFD_ASSERT (abfd != NULL && ptr != NULL); | |
534 | ||
535 | /* Print normal ELF private data. */ | |
536 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
537 | ||
538 | /* Ignore init flag - it may not be set, despite the flags field containing valid data. */ | |
539 | ||
540 | /* xgettext:c-format */ | |
541 | fprintf (file, _("private flags = %lx:"), elf_elfheader (abfd)->e_flags); | |
542 | ||
179d3252 | 543 | if (elf_elfheader (abfd)->e_flags & EF_VAX_NONPIC) |
90ace9e9 JT |
544 | fprintf (file, _(" [nonpic]")); |
545 | ||
179d3252 | 546 | if (elf_elfheader (abfd)->e_flags & EF_VAX_DFLOAT) |
90ace9e9 JT |
547 | fprintf (file, _(" [d-float]")); |
548 | ||
179d3252 | 549 | if (elf_elfheader (abfd)->e_flags & EF_VAX_GFLOAT) |
90ace9e9 JT |
550 | fprintf (file, _(" [g-float]")); |
551 | ||
552 | fputc ('\n', file); | |
553 | ||
554 | return true; | |
555 | } | |
556 | /* Look through the relocs for a section during the first phase, and | |
557 | allocate space in the global offset table or procedure linkage | |
558 | table. */ | |
559 | ||
560 | static boolean | |
561 | elf_vax_check_relocs (abfd, info, sec, relocs) | |
562 | bfd *abfd; | |
563 | struct bfd_link_info *info; | |
564 | asection *sec; | |
565 | const Elf_Internal_Rela *relocs; | |
566 | { | |
567 | bfd *dynobj; | |
568 | Elf_Internal_Shdr *symtab_hdr; | |
569 | struct elf_link_hash_entry **sym_hashes; | |
570 | bfd_signed_vma *local_got_refcounts; | |
571 | const Elf_Internal_Rela *rel; | |
572 | const Elf_Internal_Rela *rel_end; | |
573 | asection *sgot; | |
574 | asection *srelgot; | |
575 | asection *sreloc; | |
576 | ||
577 | if (info->relocateable) | |
578 | return true; | |
579 | ||
580 | dynobj = elf_hash_table (info)->dynobj; | |
581 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
582 | sym_hashes = elf_sym_hashes (abfd); | |
583 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
584 | ||
585 | sgot = NULL; | |
586 | srelgot = NULL; | |
587 | sreloc = NULL; | |
588 | ||
589 | rel_end = relocs + sec->reloc_count; | |
590 | for (rel = relocs; rel < rel_end; rel++) | |
591 | { | |
592 | unsigned long r_symndx; | |
593 | struct elf_link_hash_entry *h; | |
594 | ||
595 | r_symndx = ELF32_R_SYM (rel->r_info); | |
596 | ||
597 | if (r_symndx < symtab_hdr->sh_info) | |
598 | h = NULL; | |
599 | else | |
600 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
601 | ||
602 | switch (ELF32_R_TYPE (rel->r_info)) | |
603 | { | |
604 | case R_VAX_GOT32: | |
605 | if (h != NULL | |
606 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
607 | break; | |
608 | ||
609 | /* This symbol requires a global offset table entry. */ | |
610 | ||
611 | if (dynobj == NULL) | |
612 | { | |
613 | /* Create the .got section. */ | |
614 | elf_hash_table (info)->dynobj = dynobj = abfd; | |
615 | if (!_bfd_elf_create_got_section (dynobj, info)) | |
616 | return false; | |
617 | } | |
618 | ||
619 | if (sgot == NULL) | |
620 | { | |
621 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
622 | BFD_ASSERT (sgot != NULL); | |
623 | } | |
624 | ||
625 | if (srelgot == NULL | |
626 | && (h != NULL || info->shared)) | |
627 | { | |
628 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
629 | if (srelgot == NULL) | |
630 | { | |
631 | srelgot = bfd_make_section (dynobj, ".rela.got"); | |
632 | if (srelgot == NULL | |
633 | || !bfd_set_section_flags (dynobj, srelgot, | |
634 | (SEC_ALLOC | |
635 | | SEC_LOAD | |
636 | | SEC_HAS_CONTENTS | |
637 | | SEC_IN_MEMORY | |
638 | | SEC_LINKER_CREATED | |
639 | | SEC_READONLY)) | |
640 | || !bfd_set_section_alignment (dynobj, srelgot, 2)) | |
641 | return false; | |
642 | } | |
643 | } | |
644 | ||
645 | if (h != NULL) | |
646 | { | |
647 | struct elf_vax_link_hash_entry *eh; | |
648 | ||
649 | eh = (struct elf_vax_link_hash_entry *) h; | |
650 | if (h->got.refcount == -1) | |
651 | { | |
652 | h->got.refcount = 1; | |
653 | eh->got_addend = rel->r_addend; | |
654 | ||
655 | /* Make sure this symbol is output as a dynamic symbol. */ | |
656 | if (h->dynindx == -1) | |
657 | { | |
658 | if (!bfd_elf32_link_record_dynamic_symbol (info, h)) | |
659 | return false; | |
660 | } | |
661 | ||
662 | /* Allocate space in the .got section. */ | |
663 | sgot->_raw_size += 4; | |
664 | /* Allocate relocation space. */ | |
665 | srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
666 | } | |
667 | else | |
668 | { | |
669 | h->got.refcount++; | |
670 | if (eh->got_addend != (bfd_vma) rel->r_addend) | |
671 | (*_bfd_error_handler) | |
672 | (_("%s: warning: GOT addend of %ld to `%s' does not match previous GOT addend of %ld"), | |
673 | bfd_get_filename (abfd), rel->r_addend, | |
674 | h->root.root.string, | |
675 | eh->got_addend); | |
cedb70c5 | 676 | |
90ace9e9 JT |
677 | } |
678 | } | |
679 | break; | |
680 | ||
681 | case R_VAX_PLT32: | |
682 | /* This symbol requires a procedure linkage table entry. We | |
683 | actually build the entry in adjust_dynamic_symbol, | |
684 | because this might be a case of linking PIC code which is | |
685 | never referenced by a dynamic object, in which case we | |
686 | don't need to generate a procedure linkage table entry | |
687 | after all. */ | |
688 | ||
689 | /* If this is a local symbol, we resolve it directly without | |
690 | creating a procedure linkage table entry. */ | |
691 | if (h == NULL) | |
692 | continue; | |
693 | ||
694 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
695 | if (h->plt.refcount == -1) | |
696 | h->plt.refcount = 1; | |
697 | else | |
698 | h->plt.refcount++; | |
699 | break; | |
700 | ||
701 | case R_VAX_PC8: | |
702 | case R_VAX_PC16: | |
703 | case R_VAX_PC32: | |
704 | /* If we are creating a shared library and this is not a local | |
705 | symbol, we need to copy the reloc into the shared library. | |
706 | However when linking with -Bsymbolic and this is a global | |
707 | symbol which is defined in an object we are including in the | |
708 | link (i.e., DEF_REGULAR is set), then we can resolve the | |
709 | reloc directly. At this point we have not seen all the input | |
710 | files, so it is possible that DEF_REGULAR is not set now but | |
711 | will be set later (it is never cleared). We account for that | |
712 | possibility below by storing information in the | |
713 | pcrel_relocs_copied field of the hash table entry. */ | |
714 | if (!(info->shared | |
715 | && (sec->flags & SEC_ALLOC) != 0 | |
716 | && h != NULL | |
717 | && (!info->symbolic | |
718 | || (h->elf_link_hash_flags | |
719 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
720 | { | |
721 | if (h != NULL) | |
722 | { | |
723 | /* Make sure a plt entry is created for this symbol if | |
724 | it turns out to be a function defined by a dynamic | |
725 | object. */ | |
726 | if (h->plt.refcount == -1) | |
727 | h->plt.refcount = 1; | |
728 | else | |
729 | h->plt.refcount++; | |
730 | } | |
731 | break; | |
732 | } | |
733 | /* Fall through. */ | |
734 | case R_VAX_8: | |
735 | case R_VAX_16: | |
736 | case R_VAX_32: | |
737 | if (h != NULL) | |
738 | { | |
739 | /* Make sure a plt entry is created for this symbol if it | |
740 | turns out to be a function defined by a dynamic object. */ | |
741 | if (h->plt.refcount == -1) | |
742 | h->plt.refcount = 1; | |
743 | else | |
744 | h->plt.refcount++; | |
745 | } | |
746 | ||
747 | /* If we are creating a shared library, we need to copy the | |
748 | reloc into the shared library. */ | |
749 | if (info->shared | |
750 | && (sec->flags & SEC_ALLOC) != 0) | |
751 | { | |
752 | /* When creating a shared object, we must copy these | |
753 | reloc types into the output file. We create a reloc | |
754 | section in dynobj and make room for this reloc. */ | |
755 | if (sreloc == NULL) | |
756 | { | |
757 | const char *name; | |
758 | ||
759 | name = (bfd_elf_string_from_elf_section | |
760 | (abfd, | |
761 | elf_elfheader (abfd)->e_shstrndx, | |
762 | elf_section_data (sec)->rel_hdr.sh_name)); | |
763 | if (name == NULL) | |
764 | return false; | |
765 | ||
766 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
767 | && strcmp (bfd_get_section_name (abfd, sec), | |
768 | name + 5) == 0); | |
769 | ||
770 | sreloc = bfd_get_section_by_name (dynobj, name); | |
771 | if (sreloc == NULL) | |
772 | { | |
773 | sreloc = bfd_make_section (dynobj, name); | |
774 | if (sreloc == NULL | |
775 | || !bfd_set_section_flags (dynobj, sreloc, | |
776 | (SEC_ALLOC | |
777 | | SEC_LOAD | |
778 | | SEC_HAS_CONTENTS | |
779 | | SEC_IN_MEMORY | |
780 | | SEC_LINKER_CREATED | |
781 | | SEC_READONLY)) | |
782 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) | |
783 | return false; | |
784 | } | |
785 | if (sec->flags & SEC_READONLY) | |
786 | info->flags |= DF_TEXTREL; | |
787 | } | |
788 | ||
789 | sreloc->_raw_size += sizeof (Elf32_External_Rela); | |
790 | ||
791 | /* If we are linking with -Bsymbolic, we count the number of | |
792 | PC relative relocations we have entered for this symbol, | |
793 | so that we can discard them again if the symbol is later | |
794 | defined by a regular object. Note that this function is | |
795 | only called if we are using an vaxelf linker hash table, | |
796 | which means that h is really a pointer to an | |
797 | elf_vax_link_hash_entry. */ | |
798 | if ((ELF32_R_TYPE (rel->r_info) == R_VAX_PC8 | |
799 | || ELF32_R_TYPE (rel->r_info) == R_VAX_PC16 | |
800 | || ELF32_R_TYPE (rel->r_info) == R_VAX_PC32) | |
801 | && info->symbolic) | |
802 | { | |
803 | struct elf_vax_link_hash_entry *eh; | |
804 | struct elf_vax_pcrel_relocs_copied *p; | |
805 | ||
806 | eh = (struct elf_vax_link_hash_entry *) h; | |
807 | ||
808 | for (p = eh->pcrel_relocs_copied; p != NULL; p = p->next) | |
809 | if (p->section == sreloc) | |
810 | break; | |
811 | ||
812 | if (p == NULL) | |
813 | { | |
814 | p = ((struct elf_vax_pcrel_relocs_copied *) | |
815 | bfd_alloc (dynobj, (bfd_size_type) sizeof *p)); | |
816 | if (p == NULL) | |
817 | return false; | |
818 | p->next = eh->pcrel_relocs_copied; | |
819 | eh->pcrel_relocs_copied = p; | |
820 | p->section = sreloc; | |
821 | p->count = 0; | |
822 | } | |
823 | ||
824 | ++p->count; | |
825 | } | |
826 | } | |
827 | ||
828 | break; | |
829 | ||
830 | /* This relocation describes the C++ object vtable hierarchy. | |
831 | Reconstruct it for later use during GC. */ | |
832 | case R_VAX_GNU_VTINHERIT: | |
833 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) | |
834 | return false; | |
835 | break; | |
836 | ||
837 | /* This relocation describes which C++ vtable entries are actually | |
838 | used. Record for later use during GC. */ | |
839 | case R_VAX_GNU_VTENTRY: | |
840 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
841 | return false; | |
842 | break; | |
843 | ||
844 | default: | |
845 | break; | |
846 | } | |
847 | } | |
848 | ||
849 | return true; | |
850 | } | |
851 | ||
852 | /* Return the section that should be marked against GC for a given | |
853 | relocation. */ | |
854 | ||
855 | static asection * | |
1e2f5b6e AM |
856 | elf_vax_gc_mark_hook (sec, info, rel, h, sym) |
857 | asection *sec; | |
90ace9e9 JT |
858 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
859 | Elf_Internal_Rela *rel; | |
860 | struct elf_link_hash_entry *h; | |
861 | Elf_Internal_Sym *sym; | |
862 | { | |
863 | if (h != NULL) | |
864 | { | |
865 | switch (ELF32_R_TYPE (rel->r_info)) | |
866 | { | |
867 | case R_VAX_GNU_VTINHERIT: | |
868 | case R_VAX_GNU_VTENTRY: | |
869 | break; | |
870 | ||
871 | default: | |
872 | switch (h->root.type) | |
873 | { | |
874 | default: | |
875 | break; | |
876 | ||
877 | case bfd_link_hash_defined: | |
878 | case bfd_link_hash_defweak: | |
879 | return h->root.u.def.section; | |
880 | ||
881 | case bfd_link_hash_common: | |
882 | return h->root.u.c.p->section; | |
883 | } | |
884 | } | |
885 | } | |
886 | else | |
1e2f5b6e | 887 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
90ace9e9 JT |
888 | |
889 | return NULL; | |
890 | } | |
891 | ||
892 | /* Update the got entry reference counts for the section being removed. */ | |
893 | ||
894 | static boolean | |
895 | elf_vax_gc_sweep_hook (abfd, info, sec, relocs) | |
896 | bfd *abfd; | |
897 | struct bfd_link_info *info; | |
898 | asection *sec; | |
899 | const Elf_Internal_Rela *relocs; | |
900 | { | |
901 | Elf_Internal_Shdr *symtab_hdr; | |
902 | struct elf_link_hash_entry **sym_hashes; | |
903 | bfd_signed_vma *local_got_refcounts; | |
904 | const Elf_Internal_Rela *rel, *relend; | |
905 | unsigned long r_symndx; | |
906 | struct elf_link_hash_entry *h; | |
907 | bfd *dynobj; | |
908 | asection *sgot; | |
909 | asection *srelgot; | |
910 | ||
911 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
912 | sym_hashes = elf_sym_hashes (abfd); | |
913 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
914 | ||
915 | dynobj = elf_hash_table (info)->dynobj; | |
916 | if (dynobj == NULL) | |
917 | return true; | |
918 | ||
919 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
920 | srelgot = bfd_get_section_by_name (dynobj, ".rela.got"); | |
921 | ||
922 | relend = relocs + sec->reloc_count; | |
923 | for (rel = relocs; rel < relend; rel++) | |
924 | { | |
925 | switch (ELF32_R_TYPE (rel->r_info)) | |
926 | { | |
927 | case R_VAX_GOT32: | |
928 | r_symndx = ELF32_R_SYM (rel->r_info); | |
929 | if (r_symndx >= symtab_hdr->sh_info) | |
930 | { | |
931 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
932 | if (h->got.refcount > 0) | |
933 | { | |
934 | --h->got.refcount; | |
935 | if (h->got.refcount == 0) | |
936 | { | |
937 | /* We don't need the .got entry any more. */ | |
938 | sgot->_raw_size -= 4; | |
939 | srelgot->_raw_size -= sizeof (Elf32_External_Rela); | |
940 | } | |
941 | } | |
942 | } | |
943 | else if (local_got_refcounts != NULL) | |
944 | { | |
945 | if (local_got_refcounts[r_symndx] > 0) | |
946 | { | |
947 | --local_got_refcounts[r_symndx]; | |
948 | if (local_got_refcounts[r_symndx] == 0) | |
949 | { | |
950 | /* We don't need the .got entry any more. */ | |
951 | sgot->_raw_size -= 4; | |
952 | if (info->shared) | |
953 | srelgot->_raw_size -= sizeof (Elf32_External_Rela); | |
954 | } | |
955 | } | |
956 | } | |
957 | break; | |
958 | ||
959 | case R_VAX_PLT32: | |
960 | case R_VAX_PC8: | |
961 | case R_VAX_PC16: | |
962 | case R_VAX_PC32: | |
963 | case R_VAX_8: | |
964 | case R_VAX_16: | |
965 | case R_VAX_32: | |
966 | r_symndx = ELF32_R_SYM (rel->r_info); | |
967 | if (r_symndx >= symtab_hdr->sh_info) | |
968 | { | |
969 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
970 | if (h->plt.refcount > 0) | |
971 | --h->plt.refcount; | |
972 | } | |
973 | break; | |
974 | ||
975 | default: | |
976 | break; | |
977 | } | |
978 | } | |
979 | ||
980 | return true; | |
981 | } | |
982 | ||
983 | /* Adjust a symbol defined by a dynamic object and referenced by a | |
984 | regular object. The current definition is in some section of the | |
985 | dynamic object, but we're not including those sections. We have to | |
986 | change the definition to something the rest of the link can | |
987 | understand. */ | |
988 | ||
989 | static boolean | |
990 | elf_vax_adjust_dynamic_symbol (info, h) | |
991 | struct bfd_link_info *info; | |
992 | struct elf_link_hash_entry *h; | |
993 | { | |
994 | bfd *dynobj; | |
995 | asection *s; | |
996 | unsigned int power_of_two; | |
997 | ||
998 | dynobj = elf_hash_table (info)->dynobj; | |
999 | ||
1000 | /* Make sure we know what is going on here. */ | |
1001 | BFD_ASSERT (dynobj != NULL | |
1002 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) | |
1003 | || h->weakdef != NULL | |
1004 | || ((h->elf_link_hash_flags | |
1005 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
1006 | && (h->elf_link_hash_flags | |
1007 | & ELF_LINK_HASH_REF_REGULAR) != 0 | |
1008 | && (h->elf_link_hash_flags | |
1009 | & ELF_LINK_HASH_DEF_REGULAR) == 0))); | |
1010 | ||
1011 | /* If this is a function, put it in the procedure linkage table. We | |
1012 | will fill in the contents of the procedure linkage table later, | |
1013 | when we know the address of the .got section. */ | |
1014 | if (h->type == STT_FUNC | |
1015 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1016 | { | |
1017 | if (! info->shared | |
1018 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) == 0 | |
1019 | && (h->elf_link_hash_flags & ELF_LINK_HASH_REF_DYNAMIC) == 0 | |
1020 | /* We must always create the plt entry if it was referenced | |
1021 | by a PLTxxO relocation. In this case we already recorded | |
1022 | it as a dynamic symbol. */ | |
1023 | && h->dynindx == -1) | |
1024 | { | |
1025 | /* This case can occur if we saw a PLTxx reloc in an input | |
1026 | file, but the symbol was never referred to by a dynamic | |
1027 | object. In such a case, we don't actually need to build | |
1028 | a procedure linkage table, and we can just do a PCxx | |
1029 | reloc instead. */ | |
1030 | BFD_ASSERT ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0); | |
1031 | h->plt.offset = (bfd_vma) -1; | |
1032 | return true; | |
1033 | } | |
1034 | ||
1035 | /* GC may have rendered this entry unused. */ | |
1036 | if (h->plt.refcount <= 0) | |
1037 | { | |
1038 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1039 | h->plt.offset = (bfd_vma) -1; | |
1040 | return true; | |
1041 | } | |
1042 | ||
1043 | /* Make sure this symbol is output as a dynamic symbol. */ | |
1044 | if (h->dynindx == -1) | |
1045 | { | |
1046 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
1047 | return false; | |
1048 | } | |
1049 | ||
1050 | s = bfd_get_section_by_name (dynobj, ".plt"); | |
1051 | BFD_ASSERT (s != NULL); | |
1052 | ||
1053 | /* If this is the first .plt entry, make room for the special | |
1054 | first entry. */ | |
1055 | if (s->_raw_size == 0) | |
1056 | { | |
1057 | s->_raw_size += PLT_ENTRY_SIZE; | |
1058 | } | |
1059 | ||
1060 | /* If this symbol is not defined in a regular file, and we are | |
1061 | not generating a shared library, then set the symbol to this | |
1062 | location in the .plt. This is required to make function | |
1063 | pointers compare as equal between the normal executable and | |
1064 | the shared library. */ | |
1065 | if (!info->shared | |
1066 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1067 | { | |
1068 | h->root.u.def.section = s; | |
1069 | h->root.u.def.value = s->_raw_size; | |
1070 | } | |
1071 | ||
1072 | h->plt.offset = s->_raw_size; | |
1073 | ||
1074 | /* Make room for this entry. */ | |
1075 | s->_raw_size += PLT_ENTRY_SIZE; | |
1076 | ||
1077 | /* We also need to make an entry in the .got.plt section, which | |
1078 | will be placed in the .got section by the linker script. */ | |
1079 | ||
1080 | s = bfd_get_section_by_name (dynobj, ".got.plt"); | |
1081 | BFD_ASSERT (s != NULL); | |
1082 | s->_raw_size += 4; | |
1083 | ||
1084 | /* We also need to make an entry in the .rela.plt section. */ | |
1085 | ||
1086 | s = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
1087 | BFD_ASSERT (s != NULL); | |
1088 | s->_raw_size += sizeof (Elf32_External_Rela); | |
1089 | ||
1090 | return true; | |
1091 | } | |
1092 | ||
1093 | /* Reinitialize the plt offset now that it is not used as a reference | |
1094 | count any more. */ | |
1095 | h->plt.offset = (bfd_vma) -1; | |
1096 | ||
1097 | /* If this is a weak symbol, and there is a real definition, the | |
1098 | processor independent code will have arranged for us to see the | |
1099 | real definition first, and we can just use the same value. */ | |
1100 | if (h->weakdef != NULL) | |
1101 | { | |
1102 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined | |
1103 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
1104 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
1105 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
1106 | return true; | |
1107 | } | |
1108 | ||
1109 | /* This is a reference to a symbol defined by a dynamic object which | |
1110 | is not a function. */ | |
1111 | ||
1112 | /* If we are creating a shared library, we must presume that the | |
1113 | only references to the symbol are via the global offset table. | |
1114 | For such cases we need not do anything here; the relocations will | |
1115 | be handled correctly by relocate_section. */ | |
1116 | if (info->shared) | |
1117 | return true; | |
1118 | ||
1119 | /* We must allocate the symbol in our .dynbss section, which will | |
1120 | become part of the .bss section of the executable. There will be | |
1121 | an entry for this symbol in the .dynsym section. The dynamic | |
1122 | object will contain position independent code, so all references | |
1123 | from the dynamic object to this symbol will go through the global | |
1124 | offset table. The dynamic linker will use the .dynsym entry to | |
1125 | determine the address it must put in the global offset table, so | |
1126 | both the dynamic object and the regular object will refer to the | |
1127 | same memory location for the variable. */ | |
1128 | ||
1129 | s = bfd_get_section_by_name (dynobj, ".dynbss"); | |
1130 | BFD_ASSERT (s != NULL); | |
1131 | ||
1132 | /* We must generate a R_VAX_COPY reloc to tell the dynamic linker to | |
1133 | copy the initial value out of the dynamic object and into the | |
1134 | runtime process image. We need to remember the offset into the | |
1135 | .rela.bss section we are going to use. */ | |
1136 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
1137 | { | |
1138 | asection *srel; | |
1139 | ||
1140 | srel = bfd_get_section_by_name (dynobj, ".rela.bss"); | |
1141 | BFD_ASSERT (srel != NULL); | |
1142 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
1143 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; | |
1144 | } | |
1145 | ||
1146 | /* We need to figure out the alignment required for this symbol. I | |
1147 | have no idea how ELF linkers handle this. */ | |
1148 | power_of_two = bfd_log2 (h->size); | |
1149 | if (power_of_two > 3) | |
1150 | power_of_two = 3; | |
1151 | ||
1152 | /* Apply the required alignment. */ | |
1153 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1154 | (bfd_size_type) (1 << power_of_two)); | |
1155 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) | |
1156 | { | |
1157 | if (!bfd_set_section_alignment (dynobj, s, power_of_two)) | |
1158 | return false; | |
1159 | } | |
1160 | ||
1161 | /* Define the symbol as being at this point in the section. */ | |
1162 | h->root.u.def.section = s; | |
1163 | h->root.u.def.value = s->_raw_size; | |
1164 | ||
1165 | /* Increment the section size to make room for the symbol. */ | |
1166 | s->_raw_size += h->size; | |
1167 | ||
1168 | return true; | |
1169 | } | |
1170 | ||
1171 | /* Set the sizes of the dynamic sections. */ | |
1172 | ||
1173 | static boolean | |
1174 | elf_vax_size_dynamic_sections (output_bfd, info) | |
1175 | bfd *output_bfd; | |
1176 | struct bfd_link_info *info; | |
1177 | { | |
1178 | bfd *dynobj; | |
1179 | asection *s; | |
1180 | boolean plt; | |
1181 | boolean relocs; | |
1182 | boolean reltext; | |
1183 | ||
1184 | dynobj = elf_hash_table (info)->dynobj; | |
1185 | BFD_ASSERT (dynobj != NULL); | |
1186 | ||
1187 | if (elf_hash_table (info)->dynamic_sections_created) | |
1188 | { | |
1189 | /* Set the contents of the .interp section to the interpreter. */ | |
1190 | if (!info->shared) | |
1191 | { | |
1192 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
1193 | BFD_ASSERT (s != NULL); | |
1194 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
1195 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
1196 | } | |
1197 | } | |
1198 | else | |
1199 | { | |
1200 | /* We may have created entries in the .rela.got and .got sections. | |
1201 | However, if we are not creating the dynamic sections, we will | |
1202 | not actually use these entries. Reset the size of .rela.got | |
1203 | and .got, which will cause it to get stripped from the output | |
1204 | file below. */ | |
1205 | s = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1206 | if (s != NULL) | |
1207 | s->_raw_size = 0; | |
1208 | s = bfd_get_section_by_name (dynobj, ".got.plt"); | |
1209 | if (s != NULL) | |
1210 | s->_raw_size = 0; | |
1211 | s = bfd_get_section_by_name (dynobj, ".got"); | |
1212 | if (s != NULL) | |
1213 | s->_raw_size = 0; | |
1214 | } | |
1215 | ||
1216 | /* If this is a -Bsymbolic shared link, then we need to discard all PC | |
1217 | relative relocs against symbols defined in a regular object. We | |
1218 | allocated space for them in the check_relocs routine, but we will not | |
1219 | fill them in in the relocate_section routine. */ | |
1220 | if (info->shared && info->symbolic) | |
1221 | elf_vax_link_hash_traverse (elf_vax_hash_table (info), | |
1222 | elf_vax_discard_copies, | |
1223 | (PTR) NULL); | |
1224 | ||
1225 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
1226 | determined the sizes of the various dynamic sections. Allocate | |
1227 | memory for them. */ | |
1228 | plt = false; | |
1229 | relocs = false; | |
1230 | reltext = false; | |
1231 | for (s = dynobj->sections; s != NULL; s = s->next) | |
1232 | { | |
1233 | const char *name; | |
1234 | boolean strip; | |
1235 | ||
1236 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
1237 | continue; | |
1238 | ||
1239 | /* It's OK to base decisions on the section name, because none | |
1240 | of the dynobj section names depend upon the input files. */ | |
1241 | name = bfd_get_section_name (dynobj, s); | |
1242 | ||
1243 | strip = false; | |
1244 | ||
1245 | if (strcmp (name, ".plt") == 0) | |
1246 | { | |
1247 | if (s->_raw_size == 0) | |
1248 | { | |
1249 | /* Strip this section if we don't need it; see the | |
1250 | comment below. */ | |
1251 | strip = true; | |
1252 | } | |
1253 | else | |
1254 | { | |
1255 | /* Remember whether there is a PLT. */ | |
1256 | plt = true; | |
1257 | } | |
1258 | } | |
1259 | else if (strncmp (name, ".rela", 5) == 0) | |
1260 | { | |
1261 | if (s->_raw_size == 0) | |
1262 | { | |
1263 | /* If we don't need this section, strip it from the | |
1264 | output file. This is mostly to handle .rela.bss and | |
1265 | .rela.plt. We must create both sections in | |
1266 | create_dynamic_sections, because they must be created | |
1267 | before the linker maps input sections to output | |
1268 | sections. The linker does that before | |
1269 | adjust_dynamic_symbol is called, and it is that | |
1270 | function which decides whether anything needs to go | |
1271 | into these sections. */ | |
1272 | strip = true; | |
1273 | } | |
1274 | else | |
1275 | { | |
1276 | asection *target; | |
1277 | ||
1278 | /* Remember whether there are any reloc sections other | |
1279 | than .rela.plt. */ | |
1280 | if (strcmp (name, ".rela.plt") != 0) | |
1281 | { | |
1282 | const char *outname; | |
1283 | ||
1284 | relocs = true; | |
1285 | ||
1286 | /* If this relocation section applies to a read only | |
1287 | section, then we probably need a DT_TEXTREL | |
1288 | entry. .rela.plt is actually associated with | |
1289 | .got.plt, which is never readonly. */ | |
1290 | outname = bfd_get_section_name (output_bfd, | |
1291 | s->output_section); | |
1292 | target = bfd_get_section_by_name (output_bfd, outname + 5); | |
1293 | if (target != NULL | |
1294 | && (target->flags & SEC_READONLY) != 0 | |
1295 | && (target->flags & SEC_ALLOC) != 0) | |
1296 | reltext = true; | |
1297 | } | |
1298 | ||
1299 | /* We use the reloc_count field as a counter if we need | |
1300 | to copy relocs into the output file. */ | |
1301 | s->reloc_count = 0; | |
1302 | } | |
1303 | } | |
1304 | else if (strncmp (name, ".got", 4) != 0) | |
1305 | { | |
1306 | /* It's not one of our sections, so don't allocate space. */ | |
1307 | continue; | |
1308 | } | |
1309 | ||
1310 | if (strip) | |
1311 | { | |
1312 | _bfd_strip_section_from_output (info, s); | |
1313 | continue; | |
1314 | } | |
1315 | ||
1316 | /* Allocate memory for the section contents. */ | |
1317 | s->contents = (bfd_byte *) bfd_alloc (dynobj, s->_raw_size); | |
1318 | if (s->contents == NULL && s->_raw_size != 0) | |
1319 | return false; | |
1320 | } | |
1321 | ||
1322 | if (elf_hash_table (info)->dynamic_sections_created) | |
1323 | { | |
1324 | /* Add some entries to the .dynamic section. We fill in the | |
1325 | values later, in elf_vax_finish_dynamic_sections, but we | |
1326 | must add the entries now so that we get the correct size for | |
1327 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
1328 | dynamic linker and used by the debugger. */ | |
1329 | #define add_dynamic_entry(TAG, VAL) \ | |
1330 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
1331 | ||
1332 | if (!info->shared) | |
1333 | { | |
1334 | if (!add_dynamic_entry (DT_DEBUG, 0)) | |
1335 | return false; | |
1336 | } | |
1337 | ||
1338 | if (plt) | |
1339 | { | |
1340 | if (!add_dynamic_entry (DT_PLTGOT, 0) | |
1341 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
1342 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
1343 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
1344 | return false; | |
1345 | } | |
1346 | ||
1347 | if (relocs) | |
1348 | { | |
1349 | if (!add_dynamic_entry (DT_RELA, 0) | |
1350 | || !add_dynamic_entry (DT_RELASZ, 0) | |
1351 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
1352 | return false; | |
1353 | } | |
1354 | ||
1355 | if (reltext || (info->flags & DF_TEXTREL) != 0) | |
1356 | { | |
1357 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
1358 | return false; | |
1359 | } | |
1360 | } | |
1361 | #undef add_dynamic_entry | |
1362 | ||
1363 | return true; | |
1364 | } | |
1365 | ||
1366 | /* This function is called via elf_vax_link_hash_traverse if we are | |
1367 | creating a shared object with -Bsymbolic. It discards the space | |
1368 | allocated to copy PC relative relocs against symbols which are defined | |
1369 | in regular objects. We allocated space for them in the check_relocs | |
1370 | routine, but we won't fill them in in the relocate_section routine. */ | |
1371 | ||
1372 | /*ARGSUSED*/ | |
1373 | static boolean | |
1374 | elf_vax_discard_copies (h, ignore) | |
1375 | struct elf_vax_link_hash_entry *h; | |
1376 | PTR ignore ATTRIBUTE_UNUSED; | |
1377 | { | |
1378 | struct elf_vax_pcrel_relocs_copied *s; | |
1379 | ||
1380 | if (h->root.root.type == bfd_link_hash_warning) | |
1381 | h = (struct elf_vax_link_hash_entry *) h->root.root.u.i.link; | |
1382 | ||
1383 | /* We only discard relocs for symbols defined in a regular object. */ | |
1384 | if ((h->root.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1385 | return true; | |
1386 | ||
1387 | for (s = h->pcrel_relocs_copied; s != NULL; s = s->next) | |
1388 | s->section->_raw_size -= s->count * sizeof (Elf32_External_Rela); | |
1389 | ||
1390 | return true; | |
1391 | } | |
1392 | ||
1393 | /* Relocate an VAX ELF section. */ | |
1394 | ||
1395 | static boolean | |
1396 | elf_vax_relocate_section (output_bfd, info, input_bfd, input_section, | |
1397 | contents, relocs, local_syms, local_sections) | |
1398 | bfd *output_bfd; | |
1399 | struct bfd_link_info *info; | |
1400 | bfd *input_bfd; | |
1401 | asection *input_section; | |
1402 | bfd_byte *contents; | |
1403 | Elf_Internal_Rela *relocs; | |
1404 | Elf_Internal_Sym *local_syms; | |
1405 | asection **local_sections; | |
1406 | { | |
1407 | bfd *dynobj; | |
1408 | Elf_Internal_Shdr *symtab_hdr; | |
1409 | struct elf_link_hash_entry **sym_hashes; | |
1410 | bfd_vma *local_got_offsets; | |
1411 | bfd_vma plt_index; | |
1412 | bfd_vma got_offset; | |
1413 | asection *sgot; | |
1414 | asection *splt; | |
1415 | asection *sgotplt; | |
1416 | asection *sreloc; | |
1417 | Elf_Internal_Rela *rel; | |
1418 | Elf_Internal_Rela *relend; | |
1419 | ||
f0fe0e16 AM |
1420 | if (info->relocateable) |
1421 | return true; | |
1422 | ||
90ace9e9 JT |
1423 | dynobj = elf_hash_table (info)->dynobj; |
1424 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
1425 | sym_hashes = elf_sym_hashes (input_bfd); | |
1426 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
1427 | ||
1428 | sgot = NULL; | |
1429 | splt = NULL; | |
1430 | sgotplt = NULL; | |
1431 | sreloc = NULL; | |
1432 | ||
1433 | rel = relocs; | |
1434 | relend = relocs + input_section->reloc_count; | |
1435 | for (; rel < relend; rel++) | |
1436 | { | |
1437 | int r_type; | |
1438 | reloc_howto_type *howto; | |
1439 | unsigned long r_symndx; | |
1440 | struct elf_link_hash_entry *h; | |
1441 | Elf_Internal_Sym *sym; | |
1442 | asection *sec; | |
1443 | bfd_vma relocation; | |
1444 | bfd_reloc_status_type r; | |
1445 | ||
1446 | r_type = ELF32_R_TYPE (rel->r_info); | |
1447 | if (r_type < 0 || r_type >= (int) R_VAX_max) | |
1448 | { | |
1449 | bfd_set_error (bfd_error_bad_value); | |
1450 | return false; | |
1451 | } | |
1452 | howto = howto_table + r_type; | |
1453 | ||
90ace9e9 | 1454 | /* This is a final link. */ |
f0fe0e16 | 1455 | r_symndx = ELF32_R_SYM (rel->r_info); |
90ace9e9 JT |
1456 | h = NULL; |
1457 | sym = NULL; | |
1458 | sec = NULL; | |
1459 | if (r_symndx < symtab_hdr->sh_info) | |
1460 | { | |
1461 | sym = local_syms + r_symndx; | |
1462 | sec = local_sections[r_symndx]; | |
1463 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sec, rel); | |
1464 | } | |
1465 | else | |
1466 | { | |
1467 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1468 | while (h->root.type == bfd_link_hash_indirect | |
1469 | || h->root.type == bfd_link_hash_warning) | |
1470 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1471 | if (h->root.type == bfd_link_hash_defined | |
1472 | || h->root.type == bfd_link_hash_defweak) | |
1473 | { | |
1474 | sec = h->root.u.def.section; | |
1475 | if ((r_type == R_VAX_PLT32 | |
1476 | && h->plt.offset != (bfd_vma) -1 | |
1477 | && elf_hash_table (info)->dynamic_sections_created) | |
1478 | || (r_type == R_VAX_GOT32 | |
1479 | && strcmp (h->root.root.string, | |
1480 | "_GLOBAL_OFFSET_TABLE_") != 0 | |
1481 | && elf_hash_table (info)->dynamic_sections_created | |
1482 | && (! info->shared | |
1483 | || (! info->symbolic && h->dynindx != -1) | |
1484 | || (h->elf_link_hash_flags | |
1485 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
1486 | || (info->shared | |
1487 | && ((! info->symbolic && h->dynindx != -1) | |
1488 | || (h->elf_link_hash_flags | |
1489 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1490 | && ((input_section->flags & SEC_ALLOC) != 0 | |
1491 | /* DWARF will emit R_VAX_32 relocations in its | |
1492 | sections against symbols defined externally | |
1493 | in shared libraries. We can't do anything | |
1494 | with them here. */ | |
1495 | ||
1496 | || ((input_section->flags & SEC_DEBUGGING) != 0 | |
1497 | && (h->elf_link_hash_flags | |
1498 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0)) | |
1499 | && (r_type == R_VAX_8 | |
1500 | || r_type == R_VAX_16 | |
1501 | || r_type == R_VAX_32 | |
1502 | || r_type == R_VAX_PC8 | |
1503 | || r_type == R_VAX_PC16 | |
1504 | || r_type == R_VAX_PC32))) | |
1505 | { | |
1506 | /* In these cases, we don't need the relocation | |
1507 | value. We check specially because in some | |
1508 | obscure cases sec->output_section will be NULL. */ | |
1509 | relocation = 0; | |
1510 | } | |
1511 | else | |
1512 | relocation = (h->root.u.def.value | |
1513 | + sec->output_section->vma | |
1514 | + sec->output_offset); | |
1515 | } | |
1516 | else if (h->root.type == bfd_link_hash_undefweak) | |
1517 | relocation = 0; | |
1518 | else if (info->shared | |
1519 | && (!info->symbolic || info->allow_shlib_undefined) | |
1520 | && !info->no_undefined | |
1521 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
1522 | relocation = 0; | |
1523 | else | |
1524 | { | |
1525 | if (!(info->callbacks->undefined_symbol | |
1526 | (info, h->root.root.string, input_bfd, | |
1527 | input_section, rel->r_offset, | |
1528 | (!info->shared || info->no_undefined | |
1529 | || ELF_ST_VISIBILITY (h->other))))) | |
1530 | return false; | |
1531 | relocation = 0; | |
1532 | } | |
1533 | } | |
1534 | ||
1535 | switch (r_type) | |
1536 | { | |
1537 | case R_VAX_GOT32: | |
1538 | /* Relocation is to the address of the entry for this symbol | |
1539 | in the global offset table. */ | |
1540 | if (h != NULL | |
1541 | && strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
1542 | break; | |
1543 | ||
1544 | /* Relocation is the offset of the entry for this symbol in | |
1545 | the global offset table. */ | |
1546 | ||
1547 | { | |
1548 | bfd_vma off; | |
1549 | ||
1550 | if (!elf_hash_table (info)->dynamic_sections_created | |
1551 | || (h == NULL) | |
1552 | || (info->shared | |
1553 | && info->symbolic | |
1554 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) | |
1555 | { | |
1556 | /* This is actually a static link, or it is a -Bsymbolic link | |
1557 | and the symbol is defined locally or there is no symbol. | |
cedb70c5 | 1558 | Change the GOT32 entry to a PC32 entry. */ |
90ace9e9 JT |
1559 | break; |
1560 | } | |
1561 | ||
1562 | if (sgot == NULL) | |
1563 | { | |
1564 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1565 | BFD_ASSERT (sgot != NULL); | |
1566 | } | |
1567 | ||
1568 | BFD_ASSERT (h != NULL); | |
1569 | off = h->got.offset; | |
1570 | BFD_ASSERT (off != (bfd_vma) -1); | |
1571 | ||
1572 | if (info->shared | |
1573 | && h->dynindx == -1 | |
1574 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
1575 | { | |
1576 | /* The symbol was forced to be local | |
1577 | because of a version file.. We must initialize | |
1578 | this entry in the global offset table. Since | |
1579 | the offset must always be a multiple of 4, we | |
1580 | use the least significant bit to record whether | |
1581 | we have initialized it already. | |
1582 | ||
1583 | When doing a dynamic link, we create a .rela.got | |
1584 | relocation entry to initialize the value. This | |
1585 | is done in the finish_dynamic_symbol routine. */ | |
1586 | if ((off & 1) != 0) | |
1587 | off &= ~1; | |
1588 | else | |
1589 | { | |
1590 | bfd_put_32 (output_bfd, relocation + rel->r_addend, | |
1591 | sgot->contents + off); | |
1592 | h->got.offset |= 1; | |
1593 | } | |
1594 | } else { | |
1595 | bfd_put_32 (output_bfd, rel->r_addend, sgot->contents + off); | |
1596 | } | |
1597 | ||
1598 | relocation = sgot->output_offset + off; | |
1599 | /* Neither GOT relocation uses the addend. */ | |
1600 | rel->r_addend = 0; | |
1601 | ||
1602 | if (r_type == R_VAX_GOT32) | |
1603 | { | |
1604 | /* Change the reference to be indirect */ | |
1605 | contents[rel->r_offset - 1] |= 0x10; | |
1606 | relocation += sgot->output_section->vma; | |
1607 | } | |
1608 | } | |
1609 | break; | |
1610 | ||
1611 | case R_VAX_PLT32: | |
1612 | /* Relocation is to the entry for this symbol in the | |
1613 | procedure linkage table. */ | |
1614 | ||
1615 | /* Resolve a PLTxx reloc against a local symbol directly, | |
1616 | without using the procedure linkage table. */ | |
1617 | if (h == NULL) | |
1618 | break; | |
1619 | ||
1620 | if (h->plt.offset == (bfd_vma) -1 | |
1621 | || !elf_hash_table (info)->dynamic_sections_created) | |
1622 | { | |
1623 | /* We didn't make a PLT entry for this symbol. This | |
1624 | happens when statically linking PIC code, or when | |
1625 | using -Bsymbolic. */ | |
1626 | break; | |
1627 | } | |
1628 | ||
1629 | if (splt == NULL) | |
1630 | { | |
1631 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1632 | BFD_ASSERT (splt != NULL); | |
1633 | } | |
1634 | ||
1635 | if (sgotplt == NULL) | |
1636 | { | |
1637 | sgotplt = bfd_get_section_by_name (dynobj, ".got.plt"); | |
1638 | BFD_ASSERT (splt != NULL); | |
1639 | } | |
1640 | ||
1641 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
1642 | ||
1643 | /* Get the offset into the .got table of the entry that | |
1644 | corresponds to this function. Each .got entry is 4 bytes. | |
1645 | The first two are reserved. */ | |
1646 | got_offset = (plt_index + 3) * 4; | |
1647 | ||
1648 | /* We want the relocate to point into the .got.plt instead | |
cedb70c5 | 1649 | of the plt itself. */ |
90ace9e9 JT |
1650 | relocation = (sgotplt->output_section->vma |
1651 | + sgotplt->output_offset | |
1652 | + got_offset); | |
1653 | contents[rel->r_offset-1] |= 0x10; /* make indirect */ | |
1654 | if (rel->r_addend == 2) | |
1655 | { | |
1656 | h->plt.offset |= 1; | |
1657 | } | |
1658 | else if (rel->r_addend != 0) | |
1659 | (*_bfd_error_handler) | |
1660 | (_("%s: warning: PLT addend of %d to `%s' from %s section ignored"), | |
1661 | bfd_get_filename (input_bfd), rel->r_addend, | |
1662 | h->root.root.string, | |
1663 | bfd_get_section_name (input_bfd, input_section)); | |
1664 | rel->r_addend = 0; | |
1665 | ||
1666 | break; | |
1667 | ||
1668 | case R_VAX_PC8: | |
1669 | case R_VAX_PC16: | |
1670 | case R_VAX_PC32: | |
1671 | if (h == NULL) | |
1672 | break; | |
1673 | /* Fall through. */ | |
1674 | case R_VAX_8: | |
1675 | case R_VAX_16: | |
1676 | case R_VAX_32: | |
1677 | if (info->shared | |
1678 | && r_symndx != 0 | |
1679 | && (input_section->flags & SEC_ALLOC) != 0 | |
1680 | && ((r_type != R_VAX_PC8 | |
1681 | && r_type != R_VAX_PC16 | |
1682 | && r_type != R_VAX_PC32) | |
1683 | || (!info->symbolic | |
1684 | || (h->elf_link_hash_flags | |
1685 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
1686 | { | |
1687 | Elf_Internal_Rela outrel; | |
1688 | boolean skip, relocate; | |
1689 | ||
1690 | /* When generating a shared object, these relocations | |
1691 | are copied into the output file to be resolved at run | |
1692 | time. */ | |
1693 | ||
1694 | if (sreloc == NULL) | |
1695 | { | |
1696 | const char *name; | |
1697 | ||
1698 | name = (bfd_elf_string_from_elf_section | |
1699 | (input_bfd, | |
1700 | elf_elfheader (input_bfd)->e_shstrndx, | |
1701 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
1702 | if (name == NULL) | |
1703 | return false; | |
1704 | ||
1705 | BFD_ASSERT (strncmp (name, ".rela", 5) == 0 | |
1706 | && strcmp (bfd_get_section_name (input_bfd, | |
1707 | input_section), | |
1708 | name + 5) == 0); | |
1709 | ||
1710 | sreloc = bfd_get_section_by_name (dynobj, name); | |
1711 | BFD_ASSERT (sreloc != NULL); | |
1712 | } | |
1713 | ||
1714 | skip = false; | |
1715 | relocate = false; | |
1716 | ||
1717 | outrel.r_offset = | |
1718 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
1719 | rel->r_offset); | |
1720 | if (outrel.r_offset == (bfd_vma) -1) | |
1721 | skip = true; | |
1722 | if (outrel.r_offset == (bfd_vma) -2) | |
1723 | skip = true, relocate = true; | |
1724 | outrel.r_offset += (input_section->output_section->vma | |
1725 | + input_section->output_offset); | |
1726 | ||
1727 | if (skip) | |
1728 | memset (&outrel, 0, sizeof outrel); | |
1729 | /* h->dynindx may be -1 if the symbol was marked to | |
1730 | become local. */ | |
1731 | else if (h != NULL | |
1732 | && ((! info->symbolic && h->dynindx != -1) | |
1733 | || (h->elf_link_hash_flags | |
1734 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
1735 | { | |
1736 | BFD_ASSERT (h->dynindx != -1); | |
1737 | outrel.r_info = ELF32_R_INFO (h->dynindx, r_type); | |
1738 | outrel.r_addend = relocation + rel->r_addend; | |
1739 | } | |
1740 | else | |
1741 | { | |
1742 | if (r_type == R_VAX_32) | |
1743 | { | |
1744 | relocate = true; | |
1745 | outrel.r_info = ELF32_R_INFO (0, R_VAX_RELATIVE); | |
1746 | BFD_ASSERT (bfd_get_signed_32 (input_bfd, | |
1747 | &contents[rel->r_offset]) == 0); | |
1748 | outrel.r_addend = relocation + rel->r_addend; | |
1749 | } | |
1750 | else | |
1751 | { | |
1752 | long indx; | |
1753 | ||
1754 | if (h == NULL) | |
1755 | sec = local_sections[r_symndx]; | |
1756 | else | |
1757 | { | |
1758 | BFD_ASSERT (h->root.type == bfd_link_hash_defined | |
1759 | || (h->root.type | |
1760 | == bfd_link_hash_defweak)); | |
1761 | sec = h->root.u.def.section; | |
1762 | } | |
1763 | if (sec != NULL && bfd_is_abs_section (sec)) | |
1764 | indx = 0; | |
1765 | else if (sec == NULL || sec->owner == NULL) | |
1766 | { | |
1767 | bfd_set_error (bfd_error_bad_value); | |
1768 | return false; | |
1769 | } | |
1770 | else | |
1771 | { | |
1772 | asection *osec; | |
1773 | ||
1774 | osec = sec->output_section; | |
1775 | indx = elf_section_data (osec)->dynindx; | |
1776 | BFD_ASSERT (indx > 0); | |
1777 | } | |
1778 | ||
1779 | outrel.r_info = ELF32_R_INFO (indx, r_type); | |
1780 | outrel.r_addend = relocation + rel->r_addend; | |
1781 | } | |
1782 | } | |
1783 | ||
1784 | if (!strcmp (bfd_get_section_name (input_bfd, input_section), | |
cedb70c5 | 1785 | ".text") != 0 || |
90ace9e9 JT |
1786 | (info->shared |
1787 | && ELF32_R_TYPE(outrel.r_info) != R_VAX_32 | |
1788 | && ELF32_R_TYPE(outrel.r_info) != R_VAX_RELATIVE | |
1789 | && ELF32_R_TYPE(outrel.r_info) != R_VAX_COPY | |
1790 | && ELF32_R_TYPE(outrel.r_info) != R_VAX_JMP_SLOT | |
1791 | && ELF32_R_TYPE(outrel.r_info) != R_VAX_GLOB_DAT)) | |
1792 | { | |
1793 | if (h != NULL) | |
1794 | (*_bfd_error_handler) | |
1795 | (_("%s: warning: %s relocation against symbol `%s' from %s section"), | |
1796 | bfd_get_filename (input_bfd), howto->name, | |
1797 | h->root.root.string, | |
1798 | bfd_get_section_name (input_bfd, input_section)); | |
1799 | else | |
1800 | (*_bfd_error_handler) | |
1801 | (_("%s: warning: %s relocation to 0x%x from %s section"), | |
1802 | bfd_get_filename (input_bfd), howto->name, | |
1803 | outrel.r_addend, | |
1804 | bfd_get_section_name (input_bfd, input_section)); | |
1805 | } | |
1806 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
1807 | (((Elf32_External_Rela *) | |
1808 | sreloc->contents) | |
1809 | + sreloc->reloc_count)); | |
1810 | ++sreloc->reloc_count; | |
1811 | ||
1812 | /* This reloc will be computed at runtime, so there's no | |
1813 | need to do anything now, except for R_VAX_32 | |
1814 | relocations that have been turned into | |
1815 | R_VAX_RELATIVE. */ | |
1816 | if (!relocate) | |
1817 | continue; | |
1818 | } | |
1819 | ||
1820 | break; | |
1821 | ||
1822 | case R_VAX_GNU_VTINHERIT: | |
1823 | case R_VAX_GNU_VTENTRY: | |
1824 | /* These are no-ops in the end. */ | |
1825 | continue; | |
1826 | ||
1827 | default: | |
1828 | break; | |
1829 | } | |
1830 | ||
1831 | /* VAX PCREL relocations are from the end of relocation, not the start */ | |
1832 | if (howto->pc_relative && howto->pcrel_offset) | |
1833 | { | |
1834 | relocation -= bfd_get_reloc_size(howto); | |
1835 | } | |
1836 | ||
1837 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, | |
1838 | contents, rel->r_offset, | |
1839 | relocation, rel->r_addend); | |
1840 | ||
1841 | if (r != bfd_reloc_ok) | |
1842 | { | |
1843 | switch (r) | |
1844 | { | |
1845 | default: | |
1846 | case bfd_reloc_outofrange: | |
1847 | abort (); | |
1848 | case bfd_reloc_overflow: | |
1849 | { | |
1850 | const char *name; | |
1851 | ||
1852 | if (h != NULL) | |
1853 | name = h->root.root.string; | |
1854 | else | |
1855 | { | |
1856 | name = bfd_elf_string_from_elf_section (input_bfd, | |
1857 | symtab_hdr->sh_link, | |
1858 | sym->st_name); | |
1859 | if (name == NULL) | |
1860 | return false; | |
1861 | if (*name == '\0') | |
1862 | name = bfd_section_name (input_bfd, sec); | |
1863 | } | |
1864 | if (!(info->callbacks->reloc_overflow | |
1865 | (info, name, howto->name, (bfd_vma) 0, | |
1866 | input_bfd, input_section, rel->r_offset))) | |
1867 | return false; | |
1868 | } | |
1869 | break; | |
1870 | } | |
1871 | } | |
1872 | } | |
1873 | ||
1874 | return true; | |
1875 | } | |
1876 | ||
1877 | /* Finish up dynamic symbol handling. We set the contents of various | |
1878 | dynamic sections here. */ | |
1879 | ||
1880 | static boolean | |
1881 | elf_vax_finish_dynamic_symbol (output_bfd, info, h, sym) | |
1882 | bfd *output_bfd; | |
1883 | struct bfd_link_info *info; | |
1884 | struct elf_link_hash_entry *h; | |
1885 | Elf_Internal_Sym *sym; | |
1886 | { | |
1887 | bfd *dynobj; | |
1888 | ||
1889 | dynobj = elf_hash_table (info)->dynobj; | |
1890 | ||
1891 | if (h->plt.offset != (bfd_vma) -1) | |
1892 | { | |
1893 | asection *splt; | |
1894 | asection *sgot; | |
1895 | asection *srela; | |
1896 | bfd_vma plt_index; | |
1897 | bfd_vma got_offset; | |
1898 | bfd_vma addend; | |
1899 | Elf_Internal_Rela rela; | |
1900 | ||
1901 | /* This symbol has an entry in the procedure linkage table. Set | |
1902 | it up. */ | |
1903 | ||
1904 | BFD_ASSERT (h->dynindx != -1); | |
1905 | ||
1906 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
1907 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
1908 | srela = bfd_get_section_by_name (dynobj, ".rela.plt"); | |
1909 | BFD_ASSERT (splt != NULL && sgot != NULL && srela != NULL); | |
1910 | ||
1911 | addend = 2 * (h->plt.offset & 1); | |
1912 | h->plt.offset &= ~1; | |
1913 | ||
1914 | /* Get the index in the procedure linkage table which | |
1915 | corresponds to this symbol. This is the index of this symbol | |
1916 | in all the symbols for which we are making plt entries. The | |
1917 | first entry in the procedure linkage table is reserved. */ | |
1918 | plt_index = h->plt.offset / PLT_ENTRY_SIZE - 1; | |
1919 | ||
1920 | /* Get the offset into the .got table of the entry that | |
1921 | corresponds to this function. Each .got entry is 4 bytes. | |
1922 | The first two are reserved. */ | |
1923 | got_offset = (plt_index + 3) * 4; | |
1924 | ||
1925 | /* Fill in the entry in the procedure linkage table. */ | |
1926 | memcpy (splt->contents + h->plt.offset, elf_vax_plt_entry, | |
1927 | PLT_ENTRY_SIZE); | |
1928 | ||
1929 | /* The offset is relative to the first extension word. */ | |
1930 | bfd_put_32 (output_bfd, | |
1931 | -(h->plt.offset + 8), | |
1932 | splt->contents + h->plt.offset + 4); | |
1933 | ||
1934 | bfd_put_32 (output_bfd, plt_index * sizeof (Elf32_External_Rela), | |
1935 | splt->contents + h->plt.offset + 8); | |
1936 | ||
1937 | /* Fill in the entry in the global offset table. */ | |
1938 | bfd_put_32 (output_bfd, | |
1939 | (splt->output_section->vma | |
1940 | + splt->output_offset | |
1941 | + h->plt.offset) + addend, | |
1942 | sgot->contents + got_offset); | |
1943 | ||
1944 | /* Fill in the entry in the .rela.plt section. */ | |
1945 | rela.r_offset = (sgot->output_section->vma | |
1946 | + sgot->output_offset | |
1947 | + got_offset); | |
1948 | rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_JMP_SLOT); | |
1949 | rela.r_addend = addend; | |
1950 | bfd_elf32_swap_reloca_out (output_bfd, &rela, | |
1951 | ((Elf32_External_Rela *) srela->contents | |
1952 | + plt_index)); | |
1953 | ||
1954 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
1955 | { | |
1956 | /* Mark the symbol as undefined, rather than as defined in | |
1957 | the .plt section. Leave the value alone. */ | |
1958 | sym->st_shndx = SHN_UNDEF; | |
1959 | } | |
1960 | } | |
1961 | ||
1962 | if (h->got.offset != (bfd_vma) -1) | |
1963 | { | |
1964 | asection *sgot; | |
1965 | asection *srela; | |
1966 | Elf_Internal_Rela rela; | |
1967 | ||
1968 | /* This symbol has an entry in the global offset table. Set it | |
1969 | up. */ | |
1970 | ||
1971 | sgot = bfd_get_section_by_name (dynobj, ".got"); | |
1972 | srela = bfd_get_section_by_name (dynobj, ".rela.got"); | |
1973 | BFD_ASSERT (sgot != NULL && srela != NULL); | |
1974 | ||
1975 | rela.r_offset = (sgot->output_section->vma | |
1976 | + sgot->output_offset | |
1977 | + (h->got.offset &~ 1)); | |
1978 | ||
1979 | /* If the symbol was forced to be local because of a version file | |
1980 | locally we just want to emit a RELATIVE reloc. The entry in | |
1981 | the global offset table will already have been initialized in | |
1982 | the relocate_section function. */ | |
1983 | if (info->shared | |
1984 | && h->dynindx == -1 | |
1985 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
1986 | { | |
1987 | rela.r_info = ELF32_R_INFO (0, R_VAX_RELATIVE); | |
1988 | } | |
1989 | else | |
1990 | { | |
1991 | rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_GLOB_DAT); | |
1992 | } | |
1993 | rela.r_addend = bfd_get_signed_32 (output_bfd, | |
1994 | (sgot->contents | |
1995 | + (h->got.offset & ~1))); | |
1996 | ||
1997 | bfd_elf32_swap_reloca_out (output_bfd, &rela, | |
1998 | ((Elf32_External_Rela *) srela->contents | |
1999 | + srela->reloc_count)); | |
2000 | ++srela->reloc_count; | |
2001 | } | |
2002 | ||
2003 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) | |
2004 | { | |
2005 | asection *s; | |
2006 | Elf_Internal_Rela rela; | |
2007 | ||
2008 | /* This symbol needs a copy reloc. Set it up. */ | |
2009 | ||
2010 | BFD_ASSERT (h->dynindx != -1 | |
2011 | && (h->root.type == bfd_link_hash_defined | |
2012 | || h->root.type == bfd_link_hash_defweak)); | |
2013 | ||
2014 | s = bfd_get_section_by_name (h->root.u.def.section->owner, | |
2015 | ".rela.bss"); | |
2016 | BFD_ASSERT (s != NULL); | |
2017 | ||
2018 | rela.r_offset = (h->root.u.def.value | |
2019 | + h->root.u.def.section->output_section->vma | |
2020 | + h->root.u.def.section->output_offset); | |
2021 | rela.r_info = ELF32_R_INFO (h->dynindx, R_VAX_COPY); | |
2022 | rela.r_addend = 0; | |
2023 | bfd_elf32_swap_reloca_out (output_bfd, &rela, | |
2024 | ((Elf32_External_Rela *) s->contents | |
2025 | + s->reloc_count)); | |
2026 | ++s->reloc_count; | |
2027 | } | |
2028 | ||
2029 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
2030 | if (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
2031 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0) | |
2032 | sym->st_shndx = SHN_ABS; | |
2033 | ||
2034 | return true; | |
2035 | } | |
2036 | ||
2037 | /* Finish up the dynamic sections. */ | |
2038 | ||
2039 | static boolean | |
2040 | elf_vax_finish_dynamic_sections (output_bfd, info) | |
2041 | bfd *output_bfd; | |
2042 | struct bfd_link_info *info; | |
2043 | { | |
2044 | bfd *dynobj; | |
2045 | asection *sgot; | |
2046 | asection *sdyn; | |
2047 | ||
2048 | dynobj = elf_hash_table (info)->dynobj; | |
2049 | ||
2050 | sgot = bfd_get_section_by_name (dynobj, ".got.plt"); | |
2051 | BFD_ASSERT (sgot != NULL); | |
2052 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
2053 | ||
2054 | if (elf_hash_table (info)->dynamic_sections_created) | |
2055 | { | |
2056 | asection *splt; | |
2057 | Elf32_External_Dyn *dyncon, *dynconend; | |
2058 | ||
2059 | splt = bfd_get_section_by_name (dynobj, ".plt"); | |
2060 | BFD_ASSERT (splt != NULL && sdyn != NULL); | |
2061 | ||
2062 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
2063 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
2064 | for (; dyncon < dynconend; dyncon++) | |
2065 | { | |
2066 | Elf_Internal_Dyn dyn; | |
2067 | const char *name; | |
2068 | asection *s; | |
2069 | ||
2070 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
2071 | ||
2072 | switch (dyn.d_tag) | |
2073 | { | |
2074 | default: | |
2075 | break; | |
2076 | ||
2077 | case DT_PLTGOT: | |
2078 | name = ".got"; | |
2079 | goto get_vma; | |
2080 | case DT_JMPREL: | |
2081 | name = ".rela.plt"; | |
2082 | get_vma: | |
2083 | s = bfd_get_section_by_name (output_bfd, name); | |
2084 | BFD_ASSERT (s != NULL); | |
2085 | dyn.d_un.d_ptr = s->vma; | |
2086 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2087 | break; | |
2088 | ||
2089 | case DT_PLTRELSZ: | |
2090 | s = bfd_get_section_by_name (output_bfd, ".rela.plt"); | |
2091 | BFD_ASSERT (s != NULL); | |
2092 | if (s->_cooked_size != 0) | |
2093 | dyn.d_un.d_val = s->_cooked_size; | |
2094 | else | |
2095 | dyn.d_un.d_val = s->_raw_size; | |
2096 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2097 | break; | |
2098 | ||
2099 | case DT_RELASZ: | |
2100 | /* The procedure linkage table relocs (DT_JMPREL) should | |
2101 | not be included in the overall relocs (DT_RELA). | |
2102 | Therefore, we override the DT_RELASZ entry here to | |
2103 | make it not include the JMPREL relocs. Since the | |
2104 | linker script arranges for .rela.plt to follow all | |
2105 | other relocation sections, we don't have to worry | |
2106 | about changing the DT_RELA entry. */ | |
2107 | s = bfd_get_section_by_name (output_bfd, ".rela.plt"); | |
2108 | if (s != NULL) | |
2109 | { | |
2110 | if (s->_cooked_size != 0) | |
2111 | dyn.d_un.d_val -= s->_cooked_size; | |
2112 | else | |
2113 | dyn.d_un.d_val -= s->_raw_size; | |
2114 | } | |
2115 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
2116 | break; | |
2117 | } | |
2118 | } | |
2119 | ||
2120 | /* Fill in the first entry in the procedure linkage table. */ | |
2121 | if (splt->_raw_size > 0) | |
2122 | { | |
2123 | memcpy (splt->contents, elf_vax_plt0_entry, PLT_ENTRY_SIZE); | |
2124 | bfd_put_32 (output_bfd, | |
2125 | (sgot->output_section->vma | |
2126 | + sgot->output_offset + 4 | |
2127 | - (splt->output_section->vma + 6)), | |
2128 | splt->contents + 2); | |
2129 | bfd_put_32 (output_bfd, | |
2130 | (sgot->output_section->vma | |
2131 | + sgot->output_offset + 8 | |
2132 | - (splt->output_section->vma + 12)), | |
2133 | splt->contents + 8); | |
cedb70c5 | 2134 | elf_section_data (splt->output_section)->this_hdr.sh_entsize |
90ace9e9 JT |
2135 | = PLT_ENTRY_SIZE; |
2136 | } | |
2137 | } | |
2138 | ||
2139 | /* Fill in the first three entries in the global offset table. */ | |
2140 | if (sgot->_raw_size > 0) | |
2141 | { | |
2142 | if (sdyn == NULL) | |
2143 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents); | |
2144 | else | |
2145 | bfd_put_32 (output_bfd, | |
2146 | sdyn->output_section->vma + sdyn->output_offset, | |
2147 | sgot->contents); | |
2148 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 4); | |
2149 | bfd_put_32 (output_bfd, (bfd_vma) 0, sgot->contents + 8); | |
2150 | } | |
2151 | ||
2152 | elf_section_data (sgot->output_section)->this_hdr.sh_entsize = 4; | |
2153 | ||
2154 | return true; | |
2155 | } | |
2156 | ||
2157 | #define TARGET_LITTLE_SYM bfd_elf32_vax_vec | |
2158 | #define TARGET_LITTLE_NAME "elf32-vax" | |
2159 | #define ELF_MACHINE_CODE EM_VAX | |
2160 | #define ELF_MAXPAGESIZE 0x1000 | |
2161 | ||
2162 | #define elf_backend_create_dynamic_sections \ | |
2163 | _bfd_elf_create_dynamic_sections | |
2164 | #define bfd_elf32_bfd_link_hash_table_create \ | |
2165 | elf_vax_link_hash_table_create | |
2166 | #define bfd_elf32_bfd_final_link _bfd_elf32_gc_common_final_link | |
2167 | ||
2168 | #define elf_backend_check_relocs elf_vax_check_relocs | |
2169 | #define elf_backend_adjust_dynamic_symbol \ | |
2170 | elf_vax_adjust_dynamic_symbol | |
2171 | #define elf_backend_size_dynamic_sections \ | |
2172 | elf_vax_size_dynamic_sections | |
2173 | #define elf_backend_relocate_section elf_vax_relocate_section | |
2174 | #define elf_backend_finish_dynamic_symbol \ | |
2175 | elf_vax_finish_dynamic_symbol | |
2176 | #define elf_backend_finish_dynamic_sections \ | |
2177 | elf_vax_finish_dynamic_sections | |
2178 | #define elf_backend_gc_mark_hook elf_vax_gc_mark_hook | |
2179 | #define elf_backend_gc_sweep_hook elf_vax_gc_sweep_hook | |
2180 | #define bfd_elf32_bfd_merge_private_bfd_data \ | |
2181 | elf32_vax_merge_private_bfd_data | |
2182 | #define bfd_elf32_bfd_set_private_flags \ | |
2183 | elf32_vax_set_private_flags | |
2184 | #define bfd_elf32_bfd_print_private_bfd_data \ | |
2185 | elf32_vax_print_private_bfd_data | |
2186 | ||
2187 | #define elf_backend_can_gc_sections 1 | |
2188 | #define elf_backend_want_got_plt 1 | |
2189 | #define elf_backend_plt_readonly 1 | |
2190 | #define elf_backend_want_plt_sym 0 | |
2191 | #define elf_backend_got_header_size 16 | |
f0fe0e16 | 2192 | #define elf_backend_rela_normal 1 |
90ace9e9 JT |
2193 | |
2194 | #include "elf32-target.h" |