Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* BFD back-end for HP PA-RISC ELF files. |
43cbcf28 | 2 | Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000 |
252b5132 RH |
3 | Free Software Foundation, Inc. |
4 | ||
30667bf3 | 5 | Original code by |
252b5132 RH |
6 | Center for Software Science |
7 | Department of Computer Science | |
8 | University of Utah | |
30667bf3 | 9 | Largely rewritten by Alan Modra <alan@linuxcare.com.au> |
252b5132 RH |
10 | |
11 | This file is part of BFD, the Binary File Descriptor library. | |
12 | ||
13 | This program is free software; you can redistribute it and/or modify | |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; either version 2 of the License, or | |
16 | (at your option) any later version. | |
17 | ||
18 | This program is distributed in the hope that it will be useful, | |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
22 | ||
23 | You should have received a copy of the GNU General Public License | |
24 | along with this program; if not, write to the Free Software | |
25 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
26 | ||
27 | #include "bfd.h" | |
28 | #include "sysdep.h" | |
252b5132 RH |
29 | #include "libbfd.h" |
30 | #include "elf-bfd.h" | |
9e103c9c JL |
31 | #include "elf/hppa.h" |
32 | #include "libhppa.h" | |
33 | #include "elf32-hppa.h" | |
34 | #define ARCH_SIZE 32 | |
35 | #include "elf-hppa.h" | |
edd21aca | 36 | #include "elf32-hppa.h" |
9e103c9c | 37 | |
252b5132 | 38 | |
74d1c347 AM |
39 | /* In order to gain some understanding of code in this file without |
40 | knowing all the intricate details of the linker, note the | |
41 | following: | |
42 | ||
43 | Functions named elf32_hppa_* are called by external routines, other | |
44 | functions are only called locally. elf32_hppa_* functions appear | |
45 | in this file more or less in the order in which they are called | |
46 | from external routines. eg. elf32_hppa_check_relocs is called | |
47 | early in the link process, elf32_hppa_finish_dynamic_sections is | |
48 | one of the last functions. */ | |
49 | ||
50 | ||
edd21aca | 51 | /* We use two hash tables to hold information for linking PA ELF objects. |
252b5132 RH |
52 | |
53 | The first is the elf32_hppa_link_hash_table which is derived | |
54 | from the standard ELF linker hash table. We use this as a place to | |
55 | attach other hash tables and static information. | |
56 | ||
57 | The second is the stub hash table which is derived from the | |
58 | base BFD hash table. The stub hash table holds the information | |
30667bf3 AM |
59 | necessary to build the linker stubs during a link. |
60 | ||
61 | There are a number of different stubs generated by the linker. | |
62 | ||
63 | Long branch stub: | |
64 | : ldil LR'X,%r1 | |
65 | : be,n RR'X(%sr4,%r1) | |
66 | ||
67 | PIC long branch stub: | |
68 | : b,l .+8,%r1 | |
69 | : addil L'X - ($PIC_pcrel$0 - 4),%r1 | |
70 | : be,n R'X - ($PIC_pcrel$0 - 8)(%sr4,%r1) | |
71 | ||
72 | Import stub to call shared library routine from normal object file | |
73 | (single sub-space version) | |
74 | : addil L'lt_ptr+ltoff,%dp ; get procedure entry point | |
75 | : ldw R'lt_ptr+ltoff(%r1),%r21 | |
76 | : bv %r0(%r21) | |
77 | : ldw R'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. | |
78 | ||
79 | Import stub to call shared library routine from shared library | |
80 | (single sub-space version) | |
81 | : addil L'ltoff,%r19 ; get procedure entry point | |
82 | : ldw R'ltoff(%r1),%r21 | |
83 | : bv %r0(%r21) | |
84 | : ldw R'ltoff+4(%r1),%r19 ; get new dlt value. | |
85 | ||
86 | Import stub to call shared library routine from normal object file | |
87 | (multiple sub-space support) | |
88 | : addil L'lt_ptr+ltoff,%dp ; get procedure entry point | |
89 | : ldw R'lt_ptr+ltoff(%r1),%r21 | |
90 | : ldw R'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. | |
91 | : ldsid (%r21),%r1 | |
92 | : mtsp %r1,%sr0 | |
93 | : be 0(%sr0,%r21) ; branch to target | |
94 | : stw %rp,-24(%sp) ; save rp | |
95 | ||
96 | Import stub to call shared library routine from shared library | |
97 | (multiple sub-space support) | |
98 | : addil L'ltoff,%r19 ; get procedure entry point | |
99 | : ldw R'ltoff(%r1),%r21 | |
100 | : ldw R'ltoff+4(%r1),%r19 ; get new dlt value. | |
101 | : ldsid (%r21),%r1 | |
102 | : mtsp %r1,%sr0 | |
103 | : be 0(%sr0,%r21) ; branch to target | |
104 | : stw %rp,-24(%sp) ; save rp | |
105 | ||
106 | Export stub to return from shared lib routine (multiple sub-space support) | |
107 | One of these is created for each exported procedure in a shared | |
108 | library (and stored in the shared lib). Shared lib routines are | |
109 | called via the first instruction in the export stub so that we can | |
110 | do an inter-space return. Not required for single sub-space. | |
111 | : bl,n X,%rp ; trap the return | |
112 | : nop | |
113 | : ldw -24(%sp),%rp ; restore the original rp | |
114 | : ldsid (%rp),%r1 | |
115 | : mtsp %r1,%sr0 | |
74d1c347 | 116 | : be,n 0(%sr0,%rp) ; inter-space return */ |
30667bf3 AM |
117 | |
118 | #define PLT_ENTRY_SIZE 8 | |
74d1c347 | 119 | #define PLABEL_PLT_ENTRY_SIZE PLT_ENTRY_SIZE |
30667bf3 AM |
120 | #define GOT_ENTRY_SIZE 4 |
121 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
122 | ||
123 | /* Section name for stubs is the associated section name plus this | |
124 | string. */ | |
125 | #define STUB_SUFFIX ".stub" | |
126 | ||
127 | /* Setting the following non-zero makes all long branch stubs | |
128 | generated during a shared link of the PIC variety. This saves on | |
129 | relocs, but costs one extra instruction per stub. */ | |
130 | #ifndef LONG_BRANCH_PIC_IN_SHLIB | |
131 | #define LONG_BRANCH_PIC_IN_SHLIB 1 | |
132 | #endif | |
252b5132 | 133 | |
74d1c347 AM |
134 | /* Set this non-zero to use import stubs instead of long branch stubs |
135 | where a .plt entry exists for the symbol. This is a fairly useless | |
136 | option as import stubs are bigger than PIC long branch stubs. */ | |
137 | #ifndef LONG_BRANCH_VIA_PLT | |
138 | #define LONG_BRANCH_VIA_PLT 0 | |
139 | #endif | |
140 | ||
30667bf3 AM |
141 | /* We don't need to copy any PC- or GP-relative dynamic relocs into a |
142 | shared object's dynamic section. */ | |
143 | #ifndef RELATIVE_DYNAMIC_RELOCS | |
144 | #define RELATIVE_DYNAMIC_RELOCS 0 | |
145 | #endif | |
146 | ||
147 | ||
148 | enum elf32_hppa_stub_type { | |
149 | hppa_stub_long_branch, | |
150 | hppa_stub_long_branch_shared, | |
151 | hppa_stub_import, | |
152 | hppa_stub_import_shared, | |
153 | hppa_stub_export, | |
154 | hppa_stub_none | |
155 | }; | |
156 | ||
157 | ||
158 | struct elf32_hppa_stub_hash_entry { | |
252b5132 | 159 | |
edd21aca | 160 | /* Base hash table entry structure. */ |
252b5132 RH |
161 | struct bfd_hash_entry root; |
162 | ||
edd21aca AM |
163 | /* The stub section. */ |
164 | asection *stub_sec; | |
165 | ||
30667bf3 AM |
166 | #if ! LONG_BRANCH_PIC_IN_SHLIB |
167 | /* It's associated reloc section. */ | |
168 | asection *reloc_sec; | |
169 | #endif | |
170 | ||
edd21aca | 171 | /* Offset within stub_sec of the beginning of this stub. */ |
30667bf3 | 172 | bfd_vma stub_offset; |
252b5132 RH |
173 | |
174 | /* Given the symbol's value and its section we can determine its final | |
175 | value when building the stubs (so the stub knows where to jump. */ | |
30667bf3 | 176 | bfd_vma target_value; |
252b5132 | 177 | asection *target_section; |
30667bf3 AM |
178 | |
179 | enum elf32_hppa_stub_type stub_type; | |
180 | ||
181 | /* The symbol table entry, if any, that this was derived from. */ | |
182 | struct elf32_hppa_link_hash_entry *h; | |
183 | ||
184 | /* Where this stub is being called from. */ | |
185 | asection *input_section; | |
252b5132 RH |
186 | }; |
187 | ||
30667bf3 AM |
188 | |
189 | struct elf32_hppa_link_hash_entry { | |
190 | ||
191 | struct elf_link_hash_entry elf; | |
192 | ||
193 | /* A pointer to the most recently used stub hash entry against this | |
194 | symbol. */ | |
195 | struct elf32_hppa_stub_hash_entry *stub_cache; | |
196 | ||
197 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
198 | /* Used to track whether we have allocated space for a long branch | |
199 | stub relocation for this symbol in the given section. */ | |
200 | asection *stub_reloc_sec; | |
201 | #endif | |
202 | ||
203 | #if ! LONG_BRANCH_PIC_IN_SHLIB || RELATIVE_DYNAMIC_RELOCS | |
204 | /* Used to count relocations for delayed sizing of relocation | |
205 | sections. */ | |
206 | struct elf32_hppa_dyn_reloc_entry { | |
207 | ||
208 | /* Next relocation in the chain. */ | |
209 | struct elf32_hppa_dyn_reloc_entry *next; | |
210 | ||
211 | /* The section in dynobj. */ | |
212 | asection *section; | |
213 | ||
214 | /* Number of relocs copied in this section. */ | |
215 | bfd_size_type count; | |
216 | } *reloc_entries; | |
217 | #endif | |
218 | ||
219 | /* Set during a static link if we detect a function is PIC. */ | |
74d1c347 AM |
220 | unsigned int pic_call:1; |
221 | ||
222 | /* Set if this symbol is used by a plabel reloc. */ | |
223 | unsigned int plabel:1; | |
224 | ||
225 | /* Set if this symbol is an init or fini function and thus should | |
226 | use an absolute reloc. */ | |
227 | unsigned int plt_abs:1; | |
30667bf3 AM |
228 | }; |
229 | ||
230 | ||
231 | struct elf32_hppa_link_hash_table { | |
232 | ||
252b5132 RH |
233 | /* The main hash table. */ |
234 | struct elf_link_hash_table root; | |
235 | ||
236 | /* The stub hash table. */ | |
edd21aca | 237 | struct bfd_hash_table stub_hash_table; |
252b5132 | 238 | |
30667bf3 AM |
239 | /* Linker stub bfd. */ |
240 | bfd *stub_bfd; | |
241 | ||
242 | /* Whether we support multiple sub-spaces for shared libs. */ | |
243 | boolean multi_subspace; | |
244 | ||
245 | /* Linker call-backs. */ | |
246 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
247 | void (*layout_sections_again) PARAMS ((void)); | |
248 | ||
249 | /* Arrays to keep track of which stub sections have been created. */ | |
250 | asection **stub_section_created; | |
251 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
252 | asection **reloc_section_created; | |
253 | #endif | |
254 | int first_init_sec; | |
255 | int first_fini_sec; | |
256 | ||
30667bf3 AM |
257 | /* Short-cuts to get to dynamic linker sections. */ |
258 | asection *sgot; | |
259 | asection *srelgot; | |
260 | asection *splt; | |
261 | asection *srelplt; | |
262 | asection *sdynbss; | |
263 | asection *srelbss; | |
252b5132 RH |
264 | }; |
265 | ||
252b5132 | 266 | |
30667bf3 AM |
267 | /* Various hash macros and functions. */ |
268 | #define hppa_link_hash_table(p) \ | |
edd21aca | 269 | ((struct elf32_hppa_link_hash_table *) ((p)->hash)) |
252b5132 | 270 | |
30667bf3 AM |
271 | #define hppa_stub_hash_lookup(table, string, create, copy) \ |
272 | ((struct elf32_hppa_stub_hash_entry *) \ | |
273 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
274 | ||
275 | static struct bfd_hash_entry *stub_hash_newfunc | |
276 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
edd21aca | 277 | |
30667bf3 | 278 | static struct bfd_hash_entry *hppa_link_hash_newfunc |
edd21aca | 279 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
252b5132 RH |
280 | |
281 | static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create | |
282 | PARAMS ((bfd *)); | |
283 | ||
252b5132 | 284 | |
30667bf3 AM |
285 | /* Stub handling functions. */ |
286 | static char *hppa_stub_name | |
287 | PARAMS ((const asection *, const asection *, | |
288 | const struct elf32_hppa_link_hash_entry *, | |
289 | const Elf_Internal_Rela *)); | |
edd21aca | 290 | |
30667bf3 AM |
291 | static struct elf32_hppa_stub_hash_entry *hppa_get_stub_entry |
292 | PARAMS ((const asection *, const asection *, | |
293 | struct elf32_hppa_link_hash_entry *, | |
294 | const Elf_Internal_Rela *, struct bfd_link_info *)); | |
edd21aca | 295 | |
30667bf3 AM |
296 | static struct elf32_hppa_stub_hash_entry *hppa_add_stub |
297 | PARAMS ((const char *, asection *, unsigned int, | |
298 | struct bfd_link_info *)); | |
299 | ||
300 | static enum elf32_hppa_stub_type hppa_type_of_stub | |
301 | PARAMS ((asection *, const Elf_Internal_Rela *, | |
302 | struct elf32_hppa_link_hash_entry *, bfd_vma)); | |
303 | ||
304 | static boolean hppa_build_one_stub | |
305 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
306 | ||
307 | static boolean hppa_size_one_stub | |
308 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
309 | ||
310 | ||
311 | /* BFD and elf backend functions. */ | |
312 | static boolean elf32_hppa_object_p PARAMS ((bfd *)); | |
252b5132 | 313 | |
edd21aca AM |
314 | static boolean elf32_hppa_add_symbol_hook |
315 | PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, | |
316 | const char **, flagword *, asection **, bfd_vma *)); | |
252b5132 | 317 | |
30667bf3 AM |
318 | static boolean elf32_hppa_create_dynamic_sections |
319 | PARAMS ((bfd *, struct bfd_link_info *)); | |
252b5132 | 320 | |
30667bf3 AM |
321 | static boolean elf32_hppa_check_relocs |
322 | PARAMS ((bfd *, struct bfd_link_info *, | |
323 | asection *, const Elf_Internal_Rela *)); | |
324 | ||
325 | static asection *elf32_hppa_gc_mark_hook | |
326 | PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *, | |
327 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
328 | ||
329 | static boolean elf32_hppa_gc_sweep_hook | |
330 | PARAMS ((bfd *, struct bfd_link_info *, | |
331 | asection *, const Elf_Internal_Rela *)); | |
332 | ||
74d1c347 AM |
333 | static void elf32_hppa_hide_symbol |
334 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
335 | ||
30667bf3 AM |
336 | static boolean elf32_hppa_adjust_dynamic_symbol |
337 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
338 | ||
339 | static boolean hppa_handle_PIC_calls | |
340 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
341 | ||
74d1c347 AM |
342 | #if ((! LONG_BRANCH_PIC_IN_SHLIB && LONG_BRANCH_VIA_PLT) \ |
343 | || RELATIVE_DYNAMIC_RELOCS) | |
30667bf3 AM |
344 | static boolean hppa_discard_copies |
345 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
346 | #endif | |
347 | ||
d5c73c2f AM |
348 | static boolean clobber_millicode_symbols |
349 | PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *)); | |
350 | ||
30667bf3 AM |
351 | static boolean elf32_hppa_size_dynamic_sections |
352 | PARAMS ((bfd *, struct bfd_link_info *)); | |
353 | ||
354 | static bfd_reloc_status_type final_link_relocate | |
355 | PARAMS ((asection *, bfd_byte *, const Elf_Internal_Rela *, | |
356 | bfd_vma, struct bfd_link_info *, asection *, | |
357 | struct elf32_hppa_link_hash_entry *)); | |
358 | ||
359 | static boolean elf32_hppa_relocate_section | |
360 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, | |
361 | bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
362 | ||
363 | static boolean elf32_hppa_finish_dynamic_symbol | |
364 | PARAMS ((bfd *, struct bfd_link_info *, | |
365 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
366 | ||
367 | static boolean elf32_hppa_finish_dynamic_sections | |
368 | PARAMS ((bfd *, struct bfd_link_info *)); | |
369 | ||
370 | static int elf32_hppa_elf_get_symbol_type | |
371 | PARAMS ((Elf_Internal_Sym *, int)); | |
252b5132 RH |
372 | |
373 | ||
252b5132 RH |
374 | /* Assorted hash table functions. */ |
375 | ||
376 | /* Initialize an entry in the stub hash table. */ | |
377 | ||
378 | static struct bfd_hash_entry * | |
30667bf3 | 379 | stub_hash_newfunc (entry, table, string) |
252b5132 RH |
380 | struct bfd_hash_entry *entry; |
381 | struct bfd_hash_table *table; | |
382 | const char *string; | |
383 | { | |
384 | struct elf32_hppa_stub_hash_entry *ret; | |
385 | ||
386 | ret = (struct elf32_hppa_stub_hash_entry *) entry; | |
387 | ||
388 | /* Allocate the structure if it has not already been allocated by a | |
389 | subclass. */ | |
390 | if (ret == NULL) | |
30667bf3 AM |
391 | { |
392 | ret = ((struct elf32_hppa_stub_hash_entry *) | |
393 | bfd_hash_allocate (table, | |
394 | sizeof (struct elf32_hppa_stub_hash_entry))); | |
395 | if (ret == NULL) | |
396 | return NULL; | |
397 | } | |
252b5132 RH |
398 | |
399 | /* Call the allocation method of the superclass. */ | |
400 | ret = ((struct elf32_hppa_stub_hash_entry *) | |
401 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); | |
402 | ||
403 | if (ret) | |
404 | { | |
405 | /* Initialize the local fields. */ | |
edd21aca | 406 | ret->stub_sec = NULL; |
30667bf3 AM |
407 | #if ! LONG_BRANCH_PIC_IN_SHLIB |
408 | ret->reloc_sec = NULL; | |
409 | #endif | |
410 | ret->stub_offset = 0; | |
252b5132 RH |
411 | ret->target_value = 0; |
412 | ret->target_section = NULL; | |
30667bf3 AM |
413 | ret->stub_type = hppa_stub_long_branch; |
414 | ret->h = NULL; | |
415 | ret->input_section = NULL; | |
416 | } | |
417 | ||
418 | return (struct bfd_hash_entry *) ret; | |
419 | } | |
420 | ||
421 | ||
422 | /* Initialize an entry in the link hash table. */ | |
423 | ||
424 | static struct bfd_hash_entry * | |
425 | hppa_link_hash_newfunc (entry, table, string) | |
426 | struct bfd_hash_entry *entry; | |
427 | struct bfd_hash_table *table; | |
428 | const char *string; | |
429 | { | |
430 | struct elf32_hppa_link_hash_entry *ret; | |
431 | ||
432 | ret = (struct elf32_hppa_link_hash_entry *) entry; | |
433 | ||
434 | /* Allocate the structure if it has not already been allocated by a | |
435 | subclass. */ | |
436 | if (ret == NULL) | |
437 | { | |
438 | ret = ((struct elf32_hppa_link_hash_entry *) | |
439 | bfd_hash_allocate (table, | |
440 | sizeof (struct elf32_hppa_link_hash_entry))); | |
441 | if (ret == NULL) | |
442 | return NULL; | |
443 | } | |
444 | ||
445 | /* Call the allocation method of the superclass. */ | |
446 | ret = ((struct elf32_hppa_link_hash_entry *) | |
447 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
448 | table, string)); | |
449 | ||
450 | if (ret) | |
451 | { | |
452 | /* Initialize the local fields. */ | |
453 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
454 | ret->stub_reloc_sec = NULL; | |
455 | #endif | |
456 | ret->stub_cache = NULL; | |
457 | #if ! LONG_BRANCH_PIC_IN_SHLIB || RELATIVE_DYNAMIC_RELOCS | |
458 | ret->reloc_entries = NULL; | |
459 | #endif | |
460 | ret->pic_call = 0; | |
74d1c347 AM |
461 | ret->plabel = 0; |
462 | ret->plt_abs = 0; | |
252b5132 RH |
463 | } |
464 | ||
465 | return (struct bfd_hash_entry *) ret; | |
466 | } | |
467 | ||
30667bf3 | 468 | |
252b5132 RH |
469 | /* Create the derived linker hash table. The PA ELF port uses the derived |
470 | hash table to keep information specific to the PA ELF linker (without | |
471 | using static variables). */ | |
472 | ||
473 | static struct bfd_link_hash_table * | |
474 | elf32_hppa_link_hash_table_create (abfd) | |
475 | bfd *abfd; | |
476 | { | |
477 | struct elf32_hppa_link_hash_table *ret; | |
478 | ||
edd21aca | 479 | ret = ((struct elf32_hppa_link_hash_table *) bfd_alloc (abfd, sizeof (*ret))); |
252b5132 RH |
480 | if (ret == NULL) |
481 | return NULL; | |
edd21aca | 482 | |
30667bf3 | 483 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, hppa_link_hash_newfunc)) |
252b5132 RH |
484 | { |
485 | bfd_release (abfd, ret); | |
486 | return NULL; | |
487 | } | |
edd21aca AM |
488 | |
489 | /* Init the stub hash table too. */ | |
30667bf3 | 490 | if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc)) |
edd21aca AM |
491 | return NULL; |
492 | ||
30667bf3 AM |
493 | ret->stub_bfd = NULL; |
494 | ret->multi_subspace = 0; | |
495 | ret->add_stub_section = NULL; | |
496 | ret->layout_sections_again = NULL; | |
497 | ret->stub_section_created = NULL; | |
498 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
499 | ret->reloc_section_created = NULL; | |
500 | #endif | |
501 | ret->first_init_sec = 0; | |
502 | ret->first_fini_sec = 0; | |
30667bf3 AM |
503 | ret->sgot = NULL; |
504 | ret->srelgot = NULL; | |
505 | ret->splt = NULL; | |
506 | ret->srelplt = NULL; | |
507 | ret->sdynbss = NULL; | |
508 | ret->srelbss = NULL; | |
252b5132 RH |
509 | |
510 | return &ret->root.root; | |
511 | } | |
512 | ||
30667bf3 AM |
513 | |
514 | /* Build a name for an entry in the stub hash table. */ | |
515 | ||
edd21aca | 516 | static char * |
30667bf3 | 517 | hppa_stub_name (input_section, sym_sec, hash, rel) |
edd21aca | 518 | const asection *input_section; |
30667bf3 AM |
519 | const asection *sym_sec; |
520 | const struct elf32_hppa_link_hash_entry *hash; | |
521 | const Elf_Internal_Rela *rel; | |
edd21aca AM |
522 | { |
523 | char *stub_name; | |
74d1c347 | 524 | size_t len; |
edd21aca | 525 | |
30667bf3 AM |
526 | if (hash) |
527 | { | |
528 | len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1; | |
529 | stub_name = bfd_malloc (len); | |
530 | if (stub_name != NULL) | |
531 | { | |
532 | sprintf (stub_name, "%08x_%s+%x", | |
533 | input_section->id & 0xffffffff, | |
534 | hash->elf.root.root.string, | |
535 | (int) rel->r_addend & 0xffffffff); | |
536 | } | |
537 | } | |
538 | else | |
edd21aca | 539 | { |
30667bf3 AM |
540 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
541 | stub_name = bfd_malloc (len); | |
542 | if (stub_name != NULL) | |
543 | { | |
544 | sprintf (stub_name, "%08x_%x:%x+%x", | |
545 | input_section->id & 0xffffffff, | |
546 | sym_sec->id & 0xffffffff, | |
547 | (int) ELF32_R_SYM (rel->r_info) & 0xffffffff, | |
548 | (int) rel->r_addend & 0xffffffff); | |
549 | } | |
edd21aca AM |
550 | } |
551 | return stub_name; | |
552 | } | |
252b5132 | 553 | |
edd21aca | 554 | |
30667bf3 AM |
555 | /* Look up an entry in the stub hash. Stub entries are cached because |
556 | creating the stub name takes a bit of time. */ | |
557 | ||
558 | static struct elf32_hppa_stub_hash_entry * | |
559 | hppa_get_stub_entry (input_section, sym_sec, hash, rel, info) | |
560 | const asection *input_section; | |
561 | const asection *sym_sec; | |
562 | struct elf32_hppa_link_hash_entry *hash; | |
563 | const Elf_Internal_Rela *rel; | |
564 | struct bfd_link_info *info; | |
252b5132 | 565 | { |
30667bf3 | 566 | struct elf32_hppa_stub_hash_entry *stub_entry; |
edd21aca | 567 | |
30667bf3 AM |
568 | if (hash != NULL && hash->stub_cache != NULL |
569 | && hash->stub_cache->h == hash | |
570 | && hash->stub_cache->input_section == input_section) | |
edd21aca | 571 | { |
30667bf3 AM |
572 | stub_entry = hash->stub_cache; |
573 | } | |
574 | else | |
575 | { | |
576 | struct bfd_hash_table *stub_hash_table; | |
577 | char *stub_name; | |
edd21aca | 578 | |
30667bf3 AM |
579 | stub_name = hppa_stub_name (input_section, sym_sec, hash, rel); |
580 | if (stub_name == NULL) | |
581 | return NULL; | |
edd21aca | 582 | |
30667bf3 AM |
583 | stub_hash_table = &hppa_link_hash_table (info)->stub_hash_table; |
584 | ||
585 | stub_entry = hppa_stub_hash_lookup (stub_hash_table, stub_name, | |
586 | false, false); | |
587 | if (stub_entry == NULL) | |
588 | { | |
589 | if (hash == NULL || hash->elf.root.type != bfd_link_hash_undefweak) | |
590 | (*_bfd_error_handler) (_("%s(%s+0x%lx): cannot find stub entry %s"), | |
591 | bfd_get_filename (input_section->owner), | |
592 | input_section->name, | |
593 | (long) rel->r_offset, | |
594 | stub_name); | |
595 | } | |
596 | else | |
597 | { | |
598 | if (hash != NULL) | |
599 | hash->stub_cache = stub_entry; | |
600 | } | |
601 | ||
602 | free (stub_name); | |
edd21aca | 603 | } |
30667bf3 AM |
604 | |
605 | return stub_entry; | |
606 | } | |
607 | ||
608 | ||
609 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
610 | stub entry are initialised. */ | |
611 | ||
612 | static struct elf32_hppa_stub_hash_entry * | |
613 | hppa_add_stub (stub_name, section, sec_count, info) | |
614 | const char *stub_name; | |
615 | asection *section; | |
616 | unsigned int sec_count; | |
617 | struct bfd_link_info *info; | |
618 | { | |
619 | asection *stub_sec; | |
30667bf3 AM |
620 | struct elf32_hppa_stub_hash_entry *stub_entry; |
621 | struct elf32_hppa_link_hash_table *hplink; | |
edd21aca | 622 | |
30667bf3 AM |
623 | hplink = hppa_link_hash_table (info); |
624 | stub_sec = hplink->stub_section_created[sec_count]; | |
625 | if (stub_sec == NULL) | |
edd21aca | 626 | { |
30667bf3 | 627 | if (strncmp (section->name, ".init", 5) == 0) |
d5c73c2f | 628 | stub_sec = hplink->stub_section_created[hplink->first_init_sec - 1]; |
30667bf3 | 629 | else if (strncmp (section->name, ".fini", 5) == 0) |
d5c73c2f AM |
630 | stub_sec = hplink->stub_section_created[hplink->first_fini_sec - 1]; |
631 | ||
30667bf3 AM |
632 | if (stub_sec == NULL) |
633 | { | |
74d1c347 | 634 | size_t len; |
30667bf3 AM |
635 | char *s_name; |
636 | ||
637 | len = strlen (section->name) + sizeof (STUB_SUFFIX); | |
638 | s_name = bfd_alloc (hplink->stub_bfd, len); | |
639 | if (s_name == NULL) | |
640 | return NULL; | |
641 | ||
642 | strcpy (s_name, section->name); | |
643 | strcpy (s_name + len - sizeof (STUB_SUFFIX), STUB_SUFFIX); | |
644 | stub_sec = (*hplink->add_stub_section) (s_name, section); | |
645 | if (stub_sec == NULL) | |
646 | return NULL; | |
30667bf3 AM |
647 | } |
648 | hplink->stub_section_created[sec_count] = stub_sec; | |
edd21aca | 649 | } |
252b5132 | 650 | |
30667bf3 AM |
651 | /* Enter this entry into the linker stub hash table. */ |
652 | stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table, stub_name, | |
653 | true, false); | |
654 | if (stub_entry == NULL) | |
655 | { | |
656 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
657 | bfd_get_filename (section->owner), | |
658 | stub_name); | |
659 | return NULL; | |
edd21aca AM |
660 | } |
661 | ||
30667bf3 AM |
662 | stub_entry->stub_sec = stub_sec; |
663 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
74d1c347 | 664 | stub_entry->reloc_sec = hplink->reloc_section_created[sec_count]; |
30667bf3 AM |
665 | #endif |
666 | stub_entry->stub_offset = 0; | |
667 | stub_entry->input_section = section; | |
668 | return stub_entry; | |
edd21aca AM |
669 | } |
670 | ||
edd21aca | 671 | |
30667bf3 AM |
672 | /* Determine the type of stub needed, if any, for a call. */ |
673 | ||
674 | static enum elf32_hppa_stub_type | |
675 | hppa_type_of_stub (input_sec, rel, hash, destination) | |
676 | asection *input_sec; | |
677 | const Elf_Internal_Rela *rel; | |
678 | struct elf32_hppa_link_hash_entry *hash; | |
679 | bfd_vma destination; | |
edd21aca | 680 | { |
edd21aca | 681 | bfd_vma location; |
30667bf3 AM |
682 | bfd_vma branch_offset; |
683 | bfd_vma max_branch_offset; | |
684 | unsigned int r_type; | |
685 | ||
686 | if (hash != NULL | |
687 | && (((hash->elf.root.type == bfd_link_hash_defined | |
74d1c347 AM |
688 | || hash->elf.root.type == bfd_link_hash_defweak) |
689 | && hash->elf.root.u.def.section->output_section == NULL) | |
690 | || (hash->elf.root.type == bfd_link_hash_defweak | |
691 | && hash->elf.dynindx != -1 | |
692 | && hash->elf.plt.offset != (bfd_vma) -1) | |
30667bf3 AM |
693 | || hash->elf.root.type == bfd_link_hash_undefweak |
694 | || hash->elf.root.type == bfd_link_hash_undefined | |
695 | || hash->pic_call)) | |
696 | { | |
697 | /* If output_section is NULL, then it's a symbol defined in a | |
698 | shared library. We will need an import stub. Decide between | |
74d1c347 AM |
699 | hppa_stub_import and hppa_stub_import_shared later. For |
700 | shared links we need stubs for undefined or weak syms too; | |
701 | They will presumably be resolved by the dynamic linker. */ | |
30667bf3 AM |
702 | return hppa_stub_import; |
703 | } | |
edd21aca | 704 | |
30667bf3 AM |
705 | /* Determine where the call point is. */ |
706 | location = (input_sec->output_offset | |
707 | + input_sec->output_section->vma | |
708 | + rel->r_offset); | |
edd21aca | 709 | |
30667bf3 AM |
710 | branch_offset = destination - location - 8; |
711 | r_type = ELF32_R_TYPE (rel->r_info); | |
edd21aca | 712 | |
30667bf3 AM |
713 | /* Determine if a long branch stub is needed. parisc branch offsets |
714 | are relative to the second instruction past the branch, ie. +8 | |
715 | bytes on from the branch instruction location. The offset is | |
716 | signed and counts in units of 4 bytes. */ | |
717 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 718 | { |
30667bf3 AM |
719 | max_branch_offset = (1 << (17-1)) << 2; |
720 | } | |
721 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
722 | { | |
723 | max_branch_offset = (1 << (12-1)) << 2; | |
724 | } | |
74d1c347 | 725 | else /* R_PARISC_PCREL22F */ |
30667bf3 AM |
726 | { |
727 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
728 | } |
729 | ||
30667bf3 | 730 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
edd21aca | 731 | { |
74d1c347 | 732 | #if LONG_BRANCH_VIA_PLT |
30667bf3 AM |
733 | if (hash != NULL |
734 | && hash->elf.dynindx != -1 | |
735 | && hash->elf.plt.offset != (bfd_vma) -1) | |
736 | { | |
737 | /* If we are doing a shared link and find we need a long | |
738 | branch stub, then go via the .plt if possible. */ | |
739 | return hppa_stub_import; | |
740 | } | |
741 | else | |
742 | #endif | |
743 | return hppa_stub_long_branch; | |
744 | } | |
745 | return hppa_stub_none; | |
746 | } | |
edd21aca | 747 | |
edd21aca | 748 | |
30667bf3 AM |
749 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
750 | IN_ARG contains the link info pointer. */ | |
edd21aca | 751 | |
30667bf3 AM |
752 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
753 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 754 | |
30667bf3 AM |
755 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
756 | #define ADDIL_R1 0x28200000 /* addil L'XXX,%r1,%r1 */ | |
757 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ | |
252b5132 | 758 | |
30667bf3 AM |
759 | #define ADDIL_DP 0x2b600000 /* addil L'XXX,%dp,%r1 */ |
760 | #define LDW_R1_R21 0x48350000 /* ldw R'XXX(%sr0,%r1),%r21 */ | |
761 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ | |
762 | #define LDW_R1_R19 0x48330000 /* ldw R'XXX(%sr0,%r1),%r19 */ | |
252b5132 | 763 | |
30667bf3 AM |
764 | #define ADDIL_R19 0x2a600000 /* addil L'XXX,%r19,%r1 */ |
765 | #define LDW_R1_DP 0x483b0000 /* ldw R'XXX(%sr0,%r1),%dp */ | |
edd21aca | 766 | |
30667bf3 AM |
767 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
768 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
769 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
770 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 771 | |
30667bf3 AM |
772 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
773 | #define NOP 0x08000240 /* nop */ | |
774 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
775 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
776 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 777 | |
30667bf3 AM |
778 | #ifndef R19_STUBS |
779 | #define R19_STUBS 1 | |
780 | #endif | |
edd21aca | 781 | |
30667bf3 AM |
782 | #if R19_STUBS |
783 | #define LDW_R1_DLT LDW_R1_R19 | |
784 | #else | |
785 | #define LDW_R1_DLT LDW_R1_DP | |
786 | #endif | |
edd21aca | 787 | |
30667bf3 AM |
788 | static boolean |
789 | hppa_build_one_stub (gen_entry, in_arg) | |
790 | struct bfd_hash_entry *gen_entry; | |
791 | PTR in_arg; | |
792 | { | |
793 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
794 | struct bfd_link_info *info; | |
795 | struct elf32_hppa_link_hash_table *hplink; | |
796 | asection *stub_sec; | |
797 | bfd *stub_bfd; | |
798 | bfd_byte *loc; | |
799 | bfd_vma sym_value; | |
74d1c347 AM |
800 | bfd_vma insn; |
801 | int val; | |
30667bf3 | 802 | int size; |
edd21aca | 803 | |
30667bf3 AM |
804 | /* Massage our args to the form they really have. */ |
805 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
806 | info = (struct bfd_link_info *) in_arg; | |
807 | ||
808 | hplink = hppa_link_hash_table (info); | |
809 | stub_sec = stub_entry->stub_sec; | |
edd21aca | 810 | |
30667bf3 | 811 | /* Make a note of the offset within the stubs for this entry. */ |
74d1c347 | 812 | stub_entry->stub_offset = stub_sec->_raw_size; |
30667bf3 | 813 | loc = stub_sec->contents + stub_entry->stub_offset; |
252b5132 | 814 | |
30667bf3 AM |
815 | stub_bfd = stub_sec->owner; |
816 | ||
817 | switch (stub_entry->stub_type) | |
818 | { | |
819 | case hppa_stub_long_branch: | |
820 | /* Create the long branch. A long branch is formed with "ldil" | |
821 | loading the upper bits of the target address into a register, | |
822 | then branching with "be" which adds in the lower bits. | |
823 | The "be" has its delay slot nullified. */ | |
824 | sym_value = (stub_entry->target_value | |
825 | + stub_entry->target_section->output_offset | |
826 | + stub_entry->target_section->output_section->vma); | |
827 | ||
74d1c347 AM |
828 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel); |
829 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); | |
30667bf3 AM |
830 | bfd_put_32 (stub_bfd, insn, loc); |
831 | ||
74d1c347 AM |
832 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel) >> 2; |
833 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); | |
30667bf3 AM |
834 | bfd_put_32 (stub_bfd, insn, loc + 4); |
835 | ||
836 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
837 | if (info->shared) | |
838 | { | |
839 | /* Output a dynamic relocation for this stub. We only | |
840 | output one PCREL21L reloc per stub, trusting that the | |
841 | dynamic linker will also fix the implied PCREL17R for the | |
842 | second instruction. PCREL21L dynamic relocs had better | |
843 | never be emitted for some other purpose... */ | |
844 | asection *srel; | |
845 | Elf_Internal_Rela outrel; | |
846 | ||
847 | if (stub_entry->h == NULL) | |
edd21aca AM |
848 | { |
849 | (*_bfd_error_handler) | |
30667bf3 AM |
850 | (_("%s(%s+0x%lx): cannot relocate %s, recompile with -ffunction-sections"), |
851 | bfd_get_filename (stub_entry->target_section->owner), | |
852 | stub_sec->name, | |
853 | (long) stub_entry->stub_offset, | |
854 | stub_entry->root.string); | |
855 | bfd_set_error (bfd_error_bad_value); | |
856 | return false; | |
edd21aca AM |
857 | } |
858 | ||
30667bf3 AM |
859 | srel = stub_entry->reloc_sec; |
860 | if (srel == NULL) | |
edd21aca AM |
861 | { |
862 | (*_bfd_error_handler) | |
30667bf3 AM |
863 | (_("Could not find relocation section for %s"), |
864 | stub_sec->name); | |
865 | bfd_set_error (bfd_error_bad_value); | |
866 | return false; | |
edd21aca | 867 | } |
252b5132 | 868 | |
30667bf3 AM |
869 | outrel.r_offset = (stub_entry->stub_offset |
870 | + stub_sec->output_offset | |
871 | + stub_sec->output_section->vma); | |
872 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_PCREL21L); | |
873 | outrel.r_addend = sym_value; | |
874 | bfd_elf32_swap_reloca_out (stub_sec->output_section->owner, | |
875 | &outrel, | |
876 | ((Elf32_External_Rela *) | |
877 | srel->contents + srel->reloc_count)); | |
878 | ++srel->reloc_count; | |
252b5132 | 879 | } |
30667bf3 AM |
880 | #endif |
881 | size = 8; | |
edd21aca AM |
882 | break; |
883 | ||
30667bf3 AM |
884 | case hppa_stub_long_branch_shared: |
885 | /* Branches are relative. This is where we are going to. */ | |
886 | sym_value = (stub_entry->target_value | |
887 | + stub_entry->target_section->output_offset | |
888 | + stub_entry->target_section->output_section->vma); | |
889 | ||
890 | /* And this is where we are coming from, more or less. */ | |
891 | sym_value -= (stub_entry->stub_offset | |
892 | + stub_sec->output_offset | |
893 | + stub_sec->output_section->vma); | |
894 | ||
74d1c347 AM |
895 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
896 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lsel); | |
897 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); | |
30667bf3 AM |
898 | bfd_put_32 (stub_bfd, insn, loc + 4); |
899 | ||
74d1c347 AM |
900 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rsel) >> 2; |
901 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); | |
30667bf3 AM |
902 | bfd_put_32 (stub_bfd, insn, loc + 8); |
903 | size = 12; | |
904 | break; | |
edd21aca | 905 | |
30667bf3 AM |
906 | case hppa_stub_import: |
907 | case hppa_stub_import_shared: | |
908 | sym_value = (stub_entry->h->elf.plt.offset | |
909 | + hplink->splt->output_offset | |
910 | + hplink->splt->output_section->vma | |
911 | - elf_gp (hplink->splt->output_section->owner)); | |
912 | ||
913 | insn = ADDIL_DP; | |
914 | #if R19_STUBS | |
915 | if (stub_entry->stub_type == hppa_stub_import_shared) | |
916 | insn = ADDIL_R19; | |
917 | #endif | |
74d1c347 AM |
918 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lsel), |
919 | insn = hppa_rebuild_insn ((int) insn, val, 21); | |
30667bf3 | 920 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 921 | |
74d1c347 AM |
922 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rsel); |
923 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); | |
30667bf3 | 924 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 925 | |
30667bf3 AM |
926 | if (hplink->multi_subspace) |
927 | { | |
74d1c347 AM |
928 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rsel); |
929 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); | |
30667bf3 | 930 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 931 | |
74d1c347 AM |
932 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
933 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
934 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
935 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 936 | |
30667bf3 AM |
937 | size = 28; |
938 | } | |
939 | else | |
940 | { | |
74d1c347 AM |
941 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
942 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rsel); | |
943 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); | |
30667bf3 | 944 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 945 | |
30667bf3 AM |
946 | size = 16; |
947 | } | |
252b5132 | 948 | |
30667bf3 AM |
949 | if (!info->shared |
950 | && stub_entry->h != NULL | |
951 | && stub_entry->h->pic_call) | |
252b5132 | 952 | { |
30667bf3 AM |
953 | /* Build the .plt entry needed to call a PIC function from |
954 | statically linked code. We don't need any relocs. */ | |
955 | bfd *dynobj; | |
956 | struct elf32_hppa_link_hash_entry *eh; | |
957 | bfd_vma value; | |
252b5132 | 958 | |
74d1c347 | 959 | dynobj = hplink->root.dynobj; |
30667bf3 | 960 | eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h; |
252b5132 | 961 | |
30667bf3 AM |
962 | BFD_ASSERT (eh->elf.root.type == bfd_link_hash_defined |
963 | || eh->elf.root.type == bfd_link_hash_defweak); | |
252b5132 | 964 | |
30667bf3 AM |
965 | value = (eh->elf.root.u.def.value |
966 | + eh->elf.root.u.def.section->output_offset | |
967 | + eh->elf.root.u.def.section->output_section->vma); | |
252b5132 | 968 | |
30667bf3 | 969 | /* Fill in the entry in the procedure linkage table. |
252b5132 | 970 | |
30667bf3 | 971 | The format of a plt entry is |
74d1c347 AM |
972 | <funcaddr> |
973 | <__gp>. */ | |
252b5132 | 974 | |
30667bf3 AM |
975 | bfd_put_32 (hplink->splt->owner, value, |
976 | hplink->splt->contents + eh->elf.plt.offset); | |
977 | value = elf_gp (hplink->splt->output_section->owner); | |
978 | bfd_put_32 (hplink->splt->owner, value, | |
979 | hplink->splt->contents + eh->elf.plt.offset + 4); | |
252b5132 | 980 | } |
30667bf3 | 981 | break; |
252b5132 | 982 | |
30667bf3 AM |
983 | case hppa_stub_export: |
984 | /* Branches are relative. This is where we are going to. */ | |
985 | sym_value = (stub_entry->target_value | |
986 | + stub_entry->target_section->output_offset | |
987 | + stub_entry->target_section->output_section->vma); | |
252b5132 | 988 | |
30667bf3 AM |
989 | /* And this is where we are coming from. */ |
990 | sym_value -= (stub_entry->stub_offset | |
991 | + stub_sec->output_offset | |
992 | + stub_sec->output_section->vma); | |
edd21aca | 993 | |
30667bf3 AM |
994 | if (sym_value - 8 + 0x40000 >= 0x80000) |
995 | { | |
edd21aca | 996 | (*_bfd_error_handler) |
30667bf3 AM |
997 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
998 | bfd_get_filename (stub_entry->target_section->owner), | |
999 | stub_sec->name, | |
1000 | (long) stub_entry->stub_offset, | |
1001 | stub_entry->root.string); | |
1002 | bfd_set_error (bfd_error_bad_value); | |
edd21aca | 1003 | return false; |
252b5132 | 1004 | } |
30667bf3 | 1005 | |
74d1c347 AM |
1006 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
1007 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
30667bf3 AM |
1008 | bfd_put_32 (stub_bfd, insn, loc); |
1009 | ||
74d1c347 AM |
1010 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
1011 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
1012 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
1013 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
1014 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
1015 | |
1016 | /* Point the function symbol at the stub. */ | |
1017 | stub_entry->h->elf.root.u.def.section = stub_sec; | |
74d1c347 | 1018 | stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size; |
30667bf3 AM |
1019 | |
1020 | size = 24; | |
1021 | break; | |
1022 | ||
1023 | default: | |
1024 | BFD_FAIL (); | |
1025 | return false; | |
252b5132 RH |
1026 | } |
1027 | ||
74d1c347 | 1028 | stub_sec->_raw_size += size; |
252b5132 RH |
1029 | return true; |
1030 | } | |
1031 | ||
30667bf3 AM |
1032 | #undef LDIL_R1 |
1033 | #undef BE_SR4_R1 | |
1034 | #undef BL_R1 | |
1035 | #undef ADDIL_R1 | |
1036 | #undef DEPI_R1 | |
1037 | #undef ADDIL_DP | |
1038 | #undef LDW_R1_R21 | |
1039 | #undef LDW_R1_DLT | |
1040 | #undef LDW_R1_R19 | |
1041 | #undef ADDIL_R19 | |
1042 | #undef LDW_R1_DP | |
1043 | #undef LDSID_R21_R1 | |
1044 | #undef MTSP_R1 | |
1045 | #undef BE_SR0_R21 | |
1046 | #undef STW_RP | |
1047 | #undef BV_R0_R21 | |
1048 | #undef BL_RP | |
1049 | #undef NOP | |
1050 | #undef LDW_RP | |
1051 | #undef LDSID_RP_R1 | |
1052 | #undef BE_SR0_RP | |
252b5132 | 1053 | |
edd21aca | 1054 | |
30667bf3 AM |
1055 | /* As above, but don't actually build the stub. Just bump offset so |
1056 | we know stub section sizes. */ | |
1057 | ||
1058 | static boolean | |
1059 | hppa_size_one_stub (gen_entry, in_arg) | |
1060 | struct bfd_hash_entry *gen_entry; | |
1061 | PTR in_arg; | |
252b5132 | 1062 | { |
30667bf3 AM |
1063 | struct elf32_hppa_stub_hash_entry *stub_entry; |
1064 | struct elf32_hppa_link_hash_table *hplink; | |
1065 | int size; | |
1066 | ||
1067 | /* Massage our args to the form they really have. */ | |
1068 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
1069 | hplink = (struct elf32_hppa_link_hash_table *) in_arg; | |
1070 | ||
1071 | if (stub_entry->stub_type == hppa_stub_long_branch) | |
74d1c347 AM |
1072 | { |
1073 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
1074 | if (stub_entry->reloc_sec != NULL) | |
1075 | stub_entry->reloc_sec->_raw_size += sizeof (Elf32_External_Rela); | |
1076 | #endif | |
1077 | size = 8; | |
1078 | } | |
30667bf3 AM |
1079 | else if (stub_entry->stub_type == hppa_stub_long_branch_shared) |
1080 | size = 12; | |
1081 | else if (stub_entry->stub_type == hppa_stub_export) | |
1082 | size = 24; | |
74d1c347 | 1083 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 1084 | { |
30667bf3 AM |
1085 | if (hplink->multi_subspace) |
1086 | size = 28; | |
1087 | else | |
1088 | size = 16; | |
1089 | } | |
252b5132 | 1090 | |
74d1c347 | 1091 | stub_entry->stub_sec->_raw_size += size; |
30667bf3 AM |
1092 | return true; |
1093 | } | |
252b5132 | 1094 | |
252b5132 | 1095 | |
30667bf3 AM |
1096 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
1097 | Additionally we set the default architecture and machine. */ | |
1098 | ||
1099 | static boolean | |
1100 | elf32_hppa_object_p (abfd) | |
1101 | bfd *abfd; | |
1102 | { | |
1103 | unsigned int flags = elf_elfheader (abfd)->e_flags; | |
252b5132 | 1104 | |
30667bf3 AM |
1105 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
1106 | { | |
1107 | case EFA_PARISC_1_0: | |
1108 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
1109 | case EFA_PARISC_1_1: | |
1110 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
1111 | case EFA_PARISC_2_0: | |
1112 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
1113 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
1114 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
1115 | } | |
1116 | return true; | |
252b5132 RH |
1117 | } |
1118 | ||
30667bf3 | 1119 | |
252b5132 RH |
1120 | /* Undo the generic ELF code's subtraction of section->vma from the |
1121 | value of each external symbol. */ | |
1122 | ||
1123 | static boolean | |
1124 | elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
5f771d47 ILT |
1125 | bfd *abfd ATTRIBUTE_UNUSED; |
1126 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1127 | const Elf_Internal_Sym *sym ATTRIBUTE_UNUSED; | |
1128 | const char **namep ATTRIBUTE_UNUSED; | |
1129 | flagword *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
1130 | asection **secp; |
1131 | bfd_vma *valp; | |
1132 | { | |
1133 | *valp += (*secp)->vma; | |
1134 | return true; | |
1135 | } | |
1136 | ||
252b5132 | 1137 | |
30667bf3 AM |
1138 | /* Create the .plt and .got sections, and set up our hash table |
1139 | short-cuts to various dynamic sections. */ | |
1140 | ||
1141 | static boolean | |
1142 | elf32_hppa_create_dynamic_sections (abfd, info) | |
1143 | bfd *abfd; | |
1144 | struct bfd_link_info *info; | |
252b5132 | 1145 | { |
30667bf3 AM |
1146 | flagword flags; |
1147 | asection *s; | |
1148 | struct elf32_hppa_link_hash_table *hplink; | |
edd21aca | 1149 | |
30667bf3 AM |
1150 | /* Don't try to create the .plt and .got twice. */ |
1151 | hplink = hppa_link_hash_table (info); | |
1152 | if (hplink->splt != NULL) | |
1153 | return true; | |
edd21aca | 1154 | |
30667bf3 AM |
1155 | /* Call the generic code to do most of the work. */ |
1156 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
1157 | return false; | |
252b5132 | 1158 | |
30667bf3 AM |
1159 | /* Our .plt just contains pointers. I suppose we should be using |
1160 | .plt.got but .plt.got doesn't make too much sense without a .plt | |
1161 | section. Set the flags to say the .plt isn't executable. */ | |
1162 | s = bfd_get_section_by_name (abfd, ".plt"); | |
1163 | flags = bfd_get_section_flags (abfd, s); | |
1164 | if (! bfd_set_section_flags (abfd, s, flags & ~SEC_CODE)) | |
1165 | return false; | |
1166 | hplink->splt = s; | |
1167 | hplink->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
1168 | ||
1169 | hplink->sgot = bfd_get_section_by_name (abfd, ".got"); | |
1170 | hplink->srelgot = bfd_make_section (abfd, ".rela.got"); | |
1171 | if (hplink->srelgot == NULL | |
1172 | || ! bfd_set_section_flags (abfd, hplink->srelgot, | |
1173 | (SEC_ALLOC | |
1174 | | SEC_LOAD | |
1175 | | SEC_HAS_CONTENTS | |
1176 | | SEC_IN_MEMORY | |
1177 | | SEC_LINKER_CREATED | |
1178 | | SEC_READONLY)) | |
1179 | || ! bfd_set_section_alignment (abfd, hplink->srelgot, 2)) | |
1180 | return false; | |
edd21aca | 1181 | |
30667bf3 AM |
1182 | hplink->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
1183 | hplink->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
1184 | ||
1185 | return true; | |
1186 | } | |
1187 | ||
1188 | ||
1189 | /* Look through the relocs for a section during the first phase, and | |
1190 | allocate space in the global offset table or procedure linkage | |
1191 | table. At this point we haven't necessarily read all the input | |
1192 | files. */ | |
252b5132 RH |
1193 | |
1194 | static boolean | |
30667bf3 AM |
1195 | elf32_hppa_check_relocs (abfd, info, sec, relocs) |
1196 | bfd *abfd; | |
1197 | struct bfd_link_info *info; | |
1198 | asection *sec; | |
1199 | const Elf_Internal_Rela *relocs; | |
252b5132 | 1200 | { |
30667bf3 AM |
1201 | bfd *dynobj; |
1202 | Elf_Internal_Shdr *symtab_hdr; | |
1203 | struct elf_link_hash_entry **sym_hashes; | |
1204 | bfd_signed_vma *local_got_refcounts; | |
1205 | const Elf_Internal_Rela *rel; | |
1206 | const Elf_Internal_Rela *rel_end; | |
1207 | struct elf32_hppa_link_hash_table *hplink; | |
1208 | asection *sreloc; | |
1209 | asection *stubreloc; | |
1210 | ||
1211 | if (info->relocateable) | |
1212 | return true; | |
1213 | ||
1214 | hplink = hppa_link_hash_table (info); | |
74d1c347 | 1215 | dynobj = hplink->root.dynobj; |
30667bf3 AM |
1216 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1217 | sym_hashes = elf_sym_hashes (abfd); | |
1218 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1219 | sreloc = NULL; | |
1220 | stubreloc = NULL; | |
1221 | ||
1222 | rel_end = relocs + sec->reloc_count; | |
1223 | for (rel = relocs; rel < rel_end; rel++) | |
1224 | { | |
1225 | enum { | |
1226 | NEED_GOT = 1, | |
1227 | NEED_PLT = 2, | |
1228 | NEED_DYNREL = 4, | |
1229 | #if LONG_BRANCH_PIC_IN_SHLIB | |
74d1c347 | 1230 | NEED_STUBREL = 0, /* We won't be needing them in this case. */ |
30667bf3 | 1231 | #else |
74d1c347 | 1232 | NEED_STUBREL = 8, |
30667bf3 | 1233 | #endif |
74d1c347 | 1234 | PLT_PLABEL = 16 |
30667bf3 | 1235 | }; |
edd21aca | 1236 | |
30667bf3 AM |
1237 | unsigned int r_symndx, r_type; |
1238 | struct elf32_hppa_link_hash_entry *h; | |
1239 | int need_entry; | |
252b5132 | 1240 | |
30667bf3 | 1241 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 | 1242 | |
30667bf3 AM |
1243 | if (r_symndx < symtab_hdr->sh_info) |
1244 | h = NULL; | |
1245 | else | |
1246 | h = ((struct elf32_hppa_link_hash_entry *) | |
1247 | sym_hashes[r_symndx - symtab_hdr->sh_info]); | |
252b5132 | 1248 | |
30667bf3 | 1249 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 | 1250 | |
30667bf3 AM |
1251 | switch (r_type) |
1252 | { | |
1253 | case R_PARISC_DLTIND14F: | |
1254 | case R_PARISC_DLTIND14R: | |
1255 | case R_PARISC_DLTIND21L: | |
1256 | /* This symbol requires a global offset table entry. */ | |
1257 | need_entry = NEED_GOT; | |
1258 | ||
1259 | /* Mark this section as containing PIC code. */ | |
1260 | sec->flags |= SEC_HAS_GOT_REF; | |
1261 | break; | |
1262 | ||
1263 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1264 | case R_PARISC_PLABEL21L: | |
1265 | case R_PARISC_PLABEL32: | |
74d1c347 AM |
1266 | /* If the addend is non-zero, we break badly. */ |
1267 | BFD_ASSERT (rel->r_addend == 0); | |
1268 | ||
1269 | /* If we are creating a shared library, then we need to | |
1270 | create a PLT entry for all PLABELs, because PLABELs with | |
1271 | local symbols may be passed via a pointer to another | |
1272 | object. Additionally, output a dynamic relocation | |
1273 | pointing to the PLT entry. */ | |
1274 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; | |
30667bf3 AM |
1275 | break; |
1276 | ||
1277 | case R_PARISC_PCREL12F: | |
1278 | case R_PARISC_PCREL17C: | |
1279 | case R_PARISC_PCREL17F: | |
1280 | case R_PARISC_PCREL22F: | |
1281 | /* Handle calls, and function pointers as they might need to | |
1282 | go through the .plt, and might require long branch stubs. */ | |
1283 | if (h == NULL) | |
1284 | { | |
1285 | /* We know local syms won't need a .plt entry, and if | |
1286 | they need a long branch stub we can't guarantee that | |
1287 | we can reach the stub. So just flag an error later | |
1288 | if we're doing a shared link and find we need a long | |
1289 | branch stub. */ | |
1290 | continue; | |
1291 | } | |
1292 | else | |
1293 | { | |
1294 | /* Global symbols will need a .plt entry if they remain | |
1295 | global, and in most cases won't need a long branch | |
1296 | stub. Unfortunately, we have to cater for the case | |
1297 | where a symbol is forced local by versioning, or due | |
1298 | to symbolic linking, and we lose the .plt entry. */ | |
1299 | need_entry = NEED_PLT | NEED_STUBREL; | |
1300 | } | |
1301 | break; | |
1302 | ||
1303 | case R_PARISC_SEGBASE: /* Used to set segment base. */ | |
1304 | case R_PARISC_SEGREL32: /* Relative reloc. */ | |
1305 | case R_PARISC_PCREL14F: /* PC relative load/store. */ | |
1306 | case R_PARISC_PCREL14R: | |
1307 | case R_PARISC_PCREL17R: /* External branches. */ | |
1308 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
1309 | /* We don't need to propagate the relocation if linking a | |
1310 | shared object since these are section relative. */ | |
1311 | continue; | |
1312 | ||
1313 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1314 | case R_PARISC_DPREL14R: | |
1315 | case R_PARISC_DPREL21L: | |
1316 | if (info->shared) | |
1317 | { | |
1318 | (*_bfd_error_handler) | |
1319 | (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"), | |
1320 | bfd_get_filename (abfd), | |
1321 | elf_hppa_howto_table[r_type].name); | |
1322 | bfd_set_error (bfd_error_bad_value); | |
1323 | return false; | |
1324 | } | |
1325 | /* Fall through. */ | |
1326 | ||
1327 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1328 | case R_PARISC_DIR17R: | |
1329 | case R_PARISC_DIR14R: /* Used for load/store from absolute locn. */ | |
1330 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ | |
1331 | #if 1 | |
1332 | /* Help debug shared library creation. Any of the above | |
1333 | relocs can be used in shared libs, but they may cause | |
1334 | pages to become unshared. */ | |
1335 | if (info->shared) | |
1336 | { | |
1337 | (*_bfd_error_handler) | |
1338 | (_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"), | |
1339 | bfd_get_filename (abfd), | |
1340 | elf_hppa_howto_table[r_type].name); | |
1341 | } | |
1342 | /* Fall through. */ | |
1343 | #endif | |
1344 | ||
1345 | case R_PARISC_DIR32: /* .word, PARISC.unwind relocs. */ | |
1346 | /* We may want to output a dynamic relocation later. */ | |
1347 | need_entry = NEED_DYNREL; | |
1348 | break; | |
1349 | ||
1350 | /* This relocation describes the C++ object vtable hierarchy. | |
1351 | Reconstruct it for later use during GC. */ | |
1352 | case R_PARISC_GNU_VTINHERIT: | |
1353 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, | |
1354 | &h->elf, rel->r_offset)) | |
1355 | return false; | |
1356 | continue; | |
1357 | ||
1358 | /* This relocation describes which C++ vtable entries are actually | |
1359 | used. Record for later use during GC. */ | |
1360 | case R_PARISC_GNU_VTENTRY: | |
1361 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, | |
1362 | &h->elf, rel->r_offset)) | |
1363 | return false; | |
1364 | continue; | |
1365 | ||
1366 | default: | |
1367 | continue; | |
1368 | } | |
1369 | ||
1370 | /* Now carry out our orders. */ | |
1371 | if (need_entry & NEED_GOT) | |
1372 | { | |
1373 | /* Allocate space for a GOT entry, as well as a dynamic | |
1374 | relocation for this entry. */ | |
1375 | if (dynobj == NULL) | |
74d1c347 | 1376 | hplink->root.dynobj = dynobj = abfd; |
30667bf3 AM |
1377 | |
1378 | if (hplink->sgot == NULL) | |
1379 | { | |
1380 | if (! elf32_hppa_create_dynamic_sections (dynobj, info)) | |
1381 | return false; | |
1382 | } | |
1383 | ||
1384 | if (h != NULL) | |
1385 | { | |
1386 | if (h->elf.got.refcount == -1) | |
1387 | { | |
1388 | h->elf.got.refcount = 1; | |
1389 | ||
1390 | /* Make sure this symbol is output as a dynamic symbol. */ | |
1391 | if (h->elf.dynindx == -1) | |
1392 | { | |
1393 | if (! bfd_elf32_link_record_dynamic_symbol (info, | |
1394 | &h->elf)) | |
1395 | return false; | |
1396 | } | |
1397 | ||
1398 | hplink->sgot->_raw_size += GOT_ENTRY_SIZE; | |
1399 | hplink->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
1400 | } | |
1401 | else | |
1402 | h->elf.got.refcount += 1; | |
1403 | } | |
1404 | else | |
1405 | { | |
1406 | /* This is a global offset table entry for a local symbol. */ | |
1407 | if (local_got_refcounts == NULL) | |
1408 | { | |
1409 | size_t size; | |
1410 | ||
74d1c347 AM |
1411 | /* Allocate space for local got offsets and local |
1412 | plt offsets. Done this way to save polluting | |
1413 | elf_obj_tdata with another target specific | |
1414 | pointer. */ | |
1415 | size = symtab_hdr->sh_info * 2 * sizeof (bfd_signed_vma); | |
30667bf3 AM |
1416 | local_got_refcounts = ((bfd_signed_vma *) |
1417 | bfd_alloc (abfd, size)); | |
1418 | if (local_got_refcounts == NULL) | |
1419 | return false; | |
1420 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1421 | memset (local_got_refcounts, -1, size); | |
1422 | } | |
1423 | if (local_got_refcounts[r_symndx] == -1) | |
1424 | { | |
1425 | local_got_refcounts[r_symndx] = 1; | |
1426 | ||
1427 | hplink->sgot->_raw_size += GOT_ENTRY_SIZE; | |
1428 | if (info->shared) | |
1429 | { | |
1430 | /* If we are generating a shared object, we need to | |
1431 | output a reloc so that the dynamic linker can | |
1432 | adjust this GOT entry (because the address | |
1433 | the shared library is loaded at is not fixed). */ | |
1434 | hplink->srelgot->_raw_size += | |
1435 | sizeof (Elf32_External_Rela); | |
1436 | } | |
1437 | } | |
1438 | else | |
1439 | local_got_refcounts[r_symndx] += 1; | |
1440 | } | |
1441 | } | |
1442 | ||
1443 | if (need_entry & NEED_PLT) | |
1444 | { | |
1445 | /* If we are creating a shared library, and this is a reloc | |
1446 | against a weak symbol or a global symbol in a dynamic | |
1447 | object, then we will be creating an import stub and a | |
1448 | .plt entry for the symbol. Similarly, on a normal link | |
1449 | to symbols defined in a dynamic object we'll need the | |
1450 | import stub and a .plt entry. We don't know yet whether | |
1451 | the symbol is defined or not, so make an entry anyway and | |
1452 | clean up later in adjust_dynamic_symbol. */ | |
1453 | if ((sec->flags & SEC_ALLOC) != 0) | |
1454 | { | |
74d1c347 | 1455 | if (h != NULL) |
30667bf3 | 1456 | { |
74d1c347 AM |
1457 | if (h->elf.plt.refcount == -1) |
1458 | { | |
1459 | h->elf.plt.refcount = 1; | |
1460 | h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
1461 | } | |
1462 | else | |
1463 | h->elf.plt.refcount += 1; | |
1464 | ||
1465 | /* If this .plt entry is for a plabel, we need an | |
1466 | extra word for ld.so. adjust_dynamic_symbol will | |
1467 | also keep the entry even if it appears to be | |
1468 | local. */ | |
1469 | if (need_entry & PLT_PLABEL) | |
1470 | h->plabel = 1; | |
1471 | } | |
1472 | else if (need_entry & PLT_PLABEL) | |
1473 | { | |
1474 | int indx; | |
1475 | ||
1476 | if (local_got_refcounts == NULL) | |
1477 | { | |
1478 | size_t size; | |
1479 | ||
1480 | /* Allocate space for local got offsets and local | |
1481 | plt offsets. */ | |
1482 | size = symtab_hdr->sh_info * 2 * sizeof (bfd_signed_vma); | |
1483 | local_got_refcounts = ((bfd_signed_vma *) | |
1484 | bfd_alloc (abfd, size)); | |
1485 | if (local_got_refcounts == NULL) | |
1486 | return false; | |
1487 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1488 | memset (local_got_refcounts, -1, size); | |
1489 | } | |
1490 | indx = r_symndx + symtab_hdr->sh_info; | |
1491 | if (local_got_refcounts[indx] == -1) | |
1492 | local_got_refcounts[indx] = 1; | |
1493 | else | |
1494 | local_got_refcounts[indx] += 1; | |
30667bf3 | 1495 | } |
30667bf3 AM |
1496 | } |
1497 | } | |
1498 | ||
1499 | if (need_entry & (NEED_DYNREL | NEED_STUBREL)) | |
1500 | { | |
1501 | /* Flag this symbol as having a non-got, non-plt reference | |
1502 | so that we generate copy relocs if it turns out to be | |
1503 | dynamic. */ | |
1504 | if (h != NULL) | |
1505 | h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; | |
1506 | ||
1507 | /* If we are creating a shared library then we need to copy | |
1508 | the reloc into the shared library. However, if we are | |
1509 | linking with -Bsymbolic, we need only copy absolute | |
1510 | relocs or relocs against symbols that are not defined in | |
1511 | an object we are including in the link. PC- or DP- or | |
1512 | DLT-relative relocs against any local sym or global sym | |
1513 | with DEF_REGULAR set, can be discarded. At this point we | |
1514 | have not seen all the input files, so it is possible that | |
1515 | DEF_REGULAR is not set now but will be set later (it is | |
1516 | never cleared). We account for that possibility below by | |
1517 | storing information in the reloc_entries field of the | |
1518 | hash table entry. | |
1519 | ||
1520 | A similar situation to the -Bsymbolic case occurs when | |
1521 | creating shared libraries and symbol visibility changes | |
1522 | render the symbol local. | |
1523 | ||
1524 | As it turns out, all the relocs we will be creating here | |
1525 | are absolute, so we cannot remove them on -Bsymbolic | |
1526 | links or visibility changes anyway. A STUB_REL reloc | |
1527 | is absolute too, as in that case it is the reloc in the | |
1528 | stub we will be creating, rather than copying the PCREL | |
1529 | reloc in the branch. */ | |
1530 | if ((sec->flags & SEC_ALLOC) != 0 | |
1531 | && info->shared | |
1532 | #if RELATIVE_DYNAMIC_RELOCS | |
1533 | && (!info->symbolic | |
1534 | || is_absolute_reloc (r_type) | |
1535 | || (h != NULL | |
1536 | && ((h->elf.elf_link_hash_flags | |
1537 | & ELF_LINK_HASH_DEF_REGULAR) == 0 | |
1538 | || h->elf.root.type == bfd_link_hash_defweak))) | |
1539 | #endif | |
1540 | ) | |
1541 | { | |
1542 | boolean doit; | |
1543 | asection *srel; | |
1544 | ||
1545 | srel = sreloc; | |
1546 | if ((need_entry & NEED_STUBREL)) | |
1547 | srel = stubreloc; | |
1548 | ||
1549 | /* Create a reloc section in dynobj and make room for | |
1550 | this reloc. */ | |
1551 | if (srel == NULL) | |
1552 | { | |
1553 | char *name; | |
1554 | ||
1555 | if (dynobj == NULL) | |
74d1c347 | 1556 | hplink->root.dynobj = dynobj = abfd; |
30667bf3 AM |
1557 | |
1558 | name = bfd_elf_string_from_elf_section | |
1559 | (abfd, | |
1560 | elf_elfheader (abfd)->e_shstrndx, | |
1561 | elf_section_data (sec)->rel_hdr.sh_name); | |
1562 | if (name == NULL) | |
1563 | { | |
1564 | (*_bfd_error_handler) | |
1565 | (_("Could not find relocation section for %s"), | |
1566 | sec->name); | |
1567 | bfd_set_error (bfd_error_bad_value); | |
1568 | return false; | |
1569 | } | |
1570 | ||
1571 | if ((need_entry & NEED_STUBREL)) | |
1572 | { | |
74d1c347 | 1573 | size_t len = strlen (name) + sizeof (STUB_SUFFIX); |
30667bf3 AM |
1574 | char *newname = bfd_malloc (len); |
1575 | ||
1576 | if (newname == NULL) | |
1577 | return false; | |
1578 | strcpy (newname, name); | |
1579 | strcpy (newname + len - sizeof (STUB_SUFFIX), | |
1580 | STUB_SUFFIX); | |
1581 | name = newname; | |
1582 | } | |
1583 | ||
1584 | srel = bfd_get_section_by_name (dynobj, name); | |
1585 | if (srel == NULL) | |
1586 | { | |
1587 | flagword flags; | |
1588 | ||
1589 | srel = bfd_make_section (dynobj, name); | |
1590 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
1591 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1592 | if ((sec->flags & SEC_ALLOC) != 0) | |
1593 | flags |= SEC_ALLOC | SEC_LOAD; | |
1594 | if (srel == NULL | |
1595 | || !bfd_set_section_flags (dynobj, srel, flags) | |
1596 | || !bfd_set_section_alignment (dynobj, srel, 2)) | |
1597 | return false; | |
1598 | } | |
1599 | else if ((need_entry & NEED_STUBREL)) | |
1600 | free (name); | |
1601 | ||
1602 | if ((need_entry & NEED_STUBREL)) | |
1603 | stubreloc = srel; | |
1604 | else | |
1605 | sreloc = srel; | |
1606 | } | |
1607 | ||
1608 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
1609 | /* If this is a function call, we only need one dynamic | |
1610 | reloc for the stub as all calls to a particular | |
1611 | function will go through the same stub. Actually, a | |
1612 | long branch stub needs two relocations, but we count | |
1613 | on some intelligence on the part of the dynamic | |
1614 | linker. */ | |
1615 | if ((need_entry & NEED_STUBREL)) | |
1616 | { | |
1617 | doit = h->stub_reloc_sec != stubreloc; | |
1618 | h->stub_reloc_sec = stubreloc; | |
1619 | } | |
1620 | else | |
1621 | #endif | |
1622 | doit = 1; | |
1623 | ||
1624 | if (doit) | |
1625 | { | |
1626 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
1627 | ||
1628 | #if ! LONG_BRANCH_PIC_IN_SHLIB || RELATIVE_DYNAMIC_RELOCS | |
1629 | /* Keep track of relocations we have entered for | |
1630 | this global symbol, so that we can discard them | |
1631 | later if necessary. */ | |
1632 | if (h != NULL | |
1633 | && (0 | |
1634 | #if RELATIVE_DYNAMIC_RELOCS | |
1635 | || ! is_absolute_reloc (rtype) | |
1636 | #endif | |
1637 | || (need_entry & NEED_STUBREL))) | |
1638 | { | |
1639 | struct elf32_hppa_dyn_reloc_entry *p; | |
252b5132 | 1640 | |
30667bf3 AM |
1641 | for (p = h->reloc_entries; p != NULL; p = p->next) |
1642 | if (p->section == srel) | |
1643 | break; | |
edd21aca | 1644 | |
30667bf3 AM |
1645 | if (p == NULL) |
1646 | { | |
1647 | p = ((struct elf32_hppa_dyn_reloc_entry *) | |
1648 | bfd_alloc (dynobj, sizeof *p)); | |
1649 | if (p == NULL) | |
1650 | return false; | |
1651 | p->next = h->reloc_entries; | |
1652 | h->reloc_entries = p; | |
1653 | p->section = srel; | |
1654 | p->count = 0; | |
1655 | } | |
edd21aca | 1656 | |
30667bf3 AM |
1657 | /* NEED_STUBREL and NEED_DYNREL are never both |
1658 | set. Leave the count at zero for the | |
1659 | NEED_STUBREL case as we only ever have one | |
1660 | stub reloc per section per symbol, and this | |
1661 | simplifies code in hppa_discard_copies. */ | |
1662 | if (! (need_entry & NEED_STUBREL)) | |
1663 | ++p->count; | |
1664 | } | |
1665 | #endif | |
1666 | } | |
1667 | } | |
1668 | } | |
1669 | } | |
edd21aca AM |
1670 | |
1671 | return true; | |
1672 | } | |
1673 | ||
30667bf3 AM |
1674 | |
1675 | /* Return the section that should be marked against garbage collection | |
1676 | for a given relocation. */ | |
1677 | ||
1678 | static asection * | |
1679 | elf32_hppa_gc_mark_hook (abfd, info, rel, h, sym) | |
1680 | bfd *abfd; | |
1681 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1682 | Elf_Internal_Rela *rel; | |
1683 | struct elf_link_hash_entry *h; | |
1684 | Elf_Internal_Sym *sym; | |
1685 | { | |
1686 | if (h != NULL) | |
1687 | { | |
1688 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1689 | { | |
1690 | case R_PARISC_GNU_VTINHERIT: | |
1691 | case R_PARISC_GNU_VTENTRY: | |
1692 | break; | |
1693 | ||
1694 | default: | |
1695 | switch (h->root.type) | |
1696 | { | |
1697 | case bfd_link_hash_defined: | |
1698 | case bfd_link_hash_defweak: | |
1699 | return h->root.u.def.section; | |
1700 | ||
1701 | case bfd_link_hash_common: | |
1702 | return h->root.u.c.p->section; | |
1703 | ||
1704 | default: | |
1705 | break; | |
1706 | } | |
1707 | } | |
1708 | } | |
1709 | else | |
1710 | { | |
1711 | if (!(elf_bad_symtab (abfd) | |
1712 | && ELF_ST_BIND (sym->st_info) != STB_LOCAL) | |
1713 | && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) | |
1714 | && sym->st_shndx != SHN_COMMON)) | |
1715 | { | |
1716 | return bfd_section_from_elf_index (abfd, sym->st_shndx); | |
1717 | } | |
1718 | } | |
1719 | ||
1720 | return NULL; | |
1721 | } | |
1722 | ||
1723 | ||
1724 | /* Update the got and plt entry reference counts for the section being | |
1725 | removed. */ | |
edd21aca AM |
1726 | |
1727 | static boolean | |
30667bf3 AM |
1728 | elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs) |
1729 | bfd *abfd; | |
1730 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1731 | asection *sec; | |
1732 | const Elf_Internal_Rela *relocs; | |
edd21aca | 1733 | { |
30667bf3 AM |
1734 | Elf_Internal_Shdr *symtab_hdr; |
1735 | struct elf_link_hash_entry **sym_hashes; | |
1736 | bfd_signed_vma *local_got_refcounts; | |
74d1c347 | 1737 | bfd_signed_vma *local_plt_refcounts; |
30667bf3 AM |
1738 | const Elf_Internal_Rela *rel, *relend; |
1739 | unsigned long r_symndx; | |
1740 | struct elf_link_hash_entry *h; | |
74d1c347 | 1741 | struct elf32_hppa_link_hash_table *hplink; |
30667bf3 AM |
1742 | bfd *dynobj; |
1743 | asection *sgot; | |
1744 | asection *srelgot; | |
1745 | ||
1746 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1747 | sym_hashes = elf_sym_hashes (abfd); | |
1748 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
74d1c347 AM |
1749 | local_plt_refcounts = local_got_refcounts; |
1750 | if (local_plt_refcounts != NULL) | |
1751 | local_plt_refcounts += symtab_hdr->sh_info; | |
1752 | hplink = hppa_link_hash_table (info); | |
1753 | dynobj = hplink->root.dynobj; | |
30667bf3 AM |
1754 | if (dynobj == NULL) |
1755 | return true; | |
1756 | ||
74d1c347 AM |
1757 | sgot = hplink->sgot; |
1758 | srelgot = hplink->srelgot; | |
30667bf3 AM |
1759 | |
1760 | relend = relocs + sec->reloc_count; | |
1761 | for (rel = relocs; rel < relend; rel++) | |
1762 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1763 | { | |
1764 | case R_PARISC_DLTIND14F: | |
1765 | case R_PARISC_DLTIND14R: | |
1766 | case R_PARISC_DLTIND21L: | |
1767 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1768 | if (r_symndx >= symtab_hdr->sh_info) | |
1769 | { | |
1770 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1771 | if (h->got.refcount > 0) | |
1772 | { | |
1773 | h->got.refcount -= 1; | |
1774 | if (h->got.refcount == 0) | |
1775 | { | |
74d1c347 | 1776 | sgot->_raw_size -= GOT_ENTRY_SIZE; |
30667bf3 AM |
1777 | srelgot->_raw_size -= sizeof (Elf32_External_Rela); |
1778 | } | |
1779 | } | |
1780 | } | |
1781 | else if (local_got_refcounts != NULL) | |
1782 | { | |
1783 | if (local_got_refcounts[r_symndx] > 0) | |
1784 | { | |
1785 | local_got_refcounts[r_symndx] -= 1; | |
1786 | if (local_got_refcounts[r_symndx] == 0) | |
1787 | { | |
74d1c347 | 1788 | sgot->_raw_size -= GOT_ENTRY_SIZE; |
30667bf3 AM |
1789 | if (info->shared) |
1790 | srelgot->_raw_size -= sizeof (Elf32_External_Rela); | |
1791 | } | |
1792 | } | |
1793 | } | |
1794 | break; | |
edd21aca | 1795 | |
30667bf3 AM |
1796 | case R_PARISC_PCREL12F: |
1797 | case R_PARISC_PCREL17C: | |
1798 | case R_PARISC_PCREL17F: | |
1799 | case R_PARISC_PCREL22F: | |
1800 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1801 | if (r_symndx >= symtab_hdr->sh_info) | |
1802 | { | |
1803 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1804 | if (h->plt.refcount > 0) | |
1805 | h->plt.refcount -= 1; | |
1806 | } | |
1807 | break; | |
edd21aca | 1808 | |
74d1c347 AM |
1809 | case R_PARISC_PLABEL14R: |
1810 | case R_PARISC_PLABEL21L: | |
1811 | case R_PARISC_PLABEL32: | |
1812 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1813 | if (r_symndx >= symtab_hdr->sh_info) | |
1814 | { | |
1815 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1816 | if (h->plt.refcount > 0) | |
1817 | h->plt.refcount -= 1; | |
1818 | } | |
1819 | else if (local_plt_refcounts != NULL) | |
1820 | { | |
1821 | if (local_plt_refcounts[r_symndx] > 0) | |
1822 | local_plt_refcounts[r_symndx] -= 1; | |
1823 | } | |
1824 | break; | |
1825 | ||
30667bf3 AM |
1826 | default: |
1827 | break; | |
1828 | } | |
252b5132 | 1829 | |
252b5132 RH |
1830 | return true; |
1831 | } | |
1832 | ||
252b5132 | 1833 | |
74d1c347 AM |
1834 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1835 | plabels. */ | |
1836 | ||
1837 | static void | |
1838 | elf32_hppa_hide_symbol (info, h) | |
1839 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1840 | struct elf_link_hash_entry *h; | |
1841 | { | |
1842 | h->dynindx = -1; | |
1843 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel) | |
1844 | { | |
1845 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1846 | h->plt.offset = (bfd_vma) -1; | |
1847 | } | |
1848 | } | |
1849 | ||
1850 | ||
30667bf3 AM |
1851 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1852 | regular object. The current definition is in some section of the | |
1853 | dynamic object, but we're not including those sections. We have to | |
1854 | change the definition to something the rest of the link can | |
1855 | understand. */ | |
252b5132 | 1856 | |
30667bf3 AM |
1857 | static boolean |
1858 | elf32_hppa_adjust_dynamic_symbol (info, h) | |
1859 | struct bfd_link_info *info; | |
1860 | struct elf_link_hash_entry *h; | |
252b5132 | 1861 | { |
30667bf3 AM |
1862 | bfd *dynobj; |
1863 | struct elf32_hppa_link_hash_table *hplink; | |
1864 | asection *s; | |
1865 | ||
30667bf3 | 1866 | hplink = hppa_link_hash_table (info); |
74d1c347 | 1867 | dynobj = hplink->root.dynobj; |
30667bf3 AM |
1868 | |
1869 | /* If this is a function, put it in the procedure linkage table. We | |
1870 | will fill in the contents of the procedure linkage table later, | |
1871 | when we know the address of the .got section. */ | |
1872 | if (h->type == STT_FUNC | |
1873 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1874 | { | |
1875 | if (h->plt.refcount <= 0 | |
1876 | || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1877 | && h->root.type != bfd_link_hash_defweak | |
74d1c347 | 1878 | && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel |
30667bf3 AM |
1879 | && (!info->shared || info->symbolic))) |
1880 | { | |
1881 | /* The .plt entry is not needed when: | |
1882 | a) Garbage collection has removed all references to the | |
1883 | symbol, or | |
1884 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1885 | object, and it's not a weak definition, nor is the symbol |
1886 | used by a plabel relocation. Either this object is the | |
1887 | application or we are doing a shared symbolic link. */ | |
1888 | ||
1889 | /* As a special sop to the hppa ABI, we keep a .plt entry | |
1890 | for functions in sections containing PIC code. */ | |
30667bf3 AM |
1891 | if (!info->shared |
1892 | && h->plt.refcount > 0 | |
1893 | && (h->root.type == bfd_link_hash_defined | |
1894 | || h->root.type == bfd_link_hash_defweak) | |
1895 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0) | |
1896 | { | |
1897 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; | |
1898 | } | |
1899 | else | |
1900 | { | |
1901 | h->plt.offset = (bfd_vma) -1; | |
1902 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1903 | return true; | |
1904 | } | |
1905 | } | |
1906 | ||
1907 | /* Make an entry in the .plt section. */ | |
1908 | s = hplink->splt; | |
1909 | h->plt.offset = s->_raw_size; | |
74d1c347 AM |
1910 | if (PLABEL_PLT_ENTRY_SIZE != PLT_ENTRY_SIZE |
1911 | && ((struct elf32_hppa_link_hash_entry *) h)->plabel | |
1912 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1913 | { | |
1914 | /* Add some extra space for the dynamic linker to use. */ | |
1915 | s->_raw_size += PLABEL_PLT_ENTRY_SIZE; | |
1916 | } | |
1917 | else | |
1918 | s->_raw_size += PLT_ENTRY_SIZE; | |
30667bf3 AM |
1919 | |
1920 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
1921 | { | |
1922 | /* Make sure this symbol is output as a dynamic symbol. */ | |
74d1c347 AM |
1923 | if (h->dynindx == -1 |
1924 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
30667bf3 AM |
1925 | { |
1926 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
1927 | return false; | |
1928 | } | |
1929 | ||
1930 | /* We also need to make an entry in the .rela.plt section. */ | |
1931 | s = hplink->srelplt; | |
1932 | s->_raw_size += sizeof (Elf32_External_Rela); | |
1933 | } | |
1934 | return true; | |
1935 | } | |
edd21aca | 1936 | |
30667bf3 AM |
1937 | /* If this is a weak symbol, and there is a real definition, the |
1938 | processor independent code will have arranged for us to see the | |
1939 | real definition first, and we can just use the same value. */ | |
1940 | if (h->weakdef != NULL) | |
edd21aca | 1941 | { |
30667bf3 AM |
1942 | BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined |
1943 | || h->weakdef->root.type == bfd_link_hash_defweak); | |
1944 | h->root.u.def.section = h->weakdef->root.u.def.section; | |
1945 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
1946 | return true; | |
1947 | } | |
edd21aca | 1948 | |
30667bf3 AM |
1949 | /* This is a reference to a symbol defined by a dynamic object which |
1950 | is not a function. */ | |
1951 | ||
1952 | /* If we are creating a shared library, we must presume that the | |
1953 | only references to the symbol are via the global offset table. | |
1954 | For such cases we need not do anything here; the relocations will | |
1955 | be handled correctly by relocate_section. */ | |
1956 | if (info->shared) | |
1957 | return true; | |
1958 | ||
1959 | /* If there are no references to this symbol that do not use the | |
1960 | GOT, we don't need to generate a copy reloc. */ | |
1961 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
1962 | return true; | |
1963 | ||
1964 | /* We must allocate the symbol in our .dynbss section, which will | |
1965 | become part of the .bss section of the executable. There will be | |
1966 | an entry for this symbol in the .dynsym section. The dynamic | |
1967 | object will contain position independent code, so all references | |
1968 | from the dynamic object to this symbol will go through the global | |
1969 | offset table. The dynamic linker will use the .dynsym entry to | |
1970 | determine the address it must put in the global offset table, so | |
1971 | both the dynamic object and the regular object will refer to the | |
1972 | same memory location for the variable. */ | |
1973 | ||
1974 | s = hplink->sdynbss; | |
1975 | ||
1976 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1977 | copy the initial value out of the dynamic object and into the | |
1978 | runtime process image. We need to remember the offset into the | |
1979 | .rela.bss section we are going to use. */ | |
1980 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
1981 | { | |
1982 | asection *srel; | |
1983 | ||
1984 | srel = hplink->srelbss; | |
1985 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
1986 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; | |
edd21aca | 1987 | } |
252b5132 | 1988 | |
30667bf3 AM |
1989 | { |
1990 | /* We need to figure out the alignment required for this symbol. I | |
1991 | have no idea how other ELF linkers handle this. */ | |
1992 | unsigned int power_of_two; | |
1993 | ||
1994 | power_of_two = bfd_log2 (h->size); | |
1995 | if (power_of_two > 3) | |
1996 | power_of_two = 3; | |
1997 | ||
1998 | /* Apply the required alignment. */ | |
1999 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
2000 | (bfd_size_type) (1 << power_of_two)); | |
2001 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) | |
2002 | { | |
2003 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
2004 | return false; | |
2005 | } | |
2006 | } | |
2007 | /* Define the symbol as being at this point in the section. */ | |
2008 | h->root.u.def.section = s; | |
2009 | h->root.u.def.value = s->_raw_size; | |
edd21aca | 2010 | |
30667bf3 AM |
2011 | /* Increment the section size to make room for the symbol. */ |
2012 | s->_raw_size += h->size; | |
252b5132 RH |
2013 | |
2014 | return true; | |
2015 | } | |
2016 | ||
252b5132 | 2017 | |
30667bf3 AM |
2018 | /* Called via elf_link_hash_traverse to create .plt entries for an |
2019 | application that uses statically linked PIC functions. Similar to | |
2020 | the first part of elf32_hppa_adjust_dynamic_symbol. */ | |
252b5132 | 2021 | |
30667bf3 AM |
2022 | static boolean |
2023 | hppa_handle_PIC_calls (h, inf) | |
2024 | struct elf_link_hash_entry *h; | |
2025 | PTR inf; | |
252b5132 | 2026 | { |
30667bf3 AM |
2027 | struct bfd_link_info *info; |
2028 | bfd *dynobj; | |
2029 | struct elf32_hppa_link_hash_table *hplink; | |
2030 | asection *s; | |
2031 | ||
2032 | if (! (h->plt.refcount > 0 | |
2033 | && (h->root.type == bfd_link_hash_defined | |
2034 | || h->root.type == bfd_link_hash_defweak) | |
2035 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)) | |
252b5132 | 2036 | { |
30667bf3 AM |
2037 | h->plt.offset = (bfd_vma) -1; |
2038 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2039 | return true; | |
252b5132 RH |
2040 | } |
2041 | ||
74d1c347 | 2042 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
30667bf3 | 2043 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
edd21aca | 2044 | |
30667bf3 | 2045 | info = (struct bfd_link_info *) inf; |
30667bf3 | 2046 | hplink = hppa_link_hash_table (info); |
74d1c347 | 2047 | dynobj = hplink->root.dynobj; |
edd21aca | 2048 | |
30667bf3 AM |
2049 | /* Make an entry in the .plt section. */ |
2050 | s = hplink->splt; | |
2051 | h->plt.offset = s->_raw_size; | |
2052 | s->_raw_size += PLT_ENTRY_SIZE; | |
2053 | ||
2054 | return true; | |
2055 | } | |
2056 | ||
2057 | ||
74d1c347 AM |
2058 | #if ((! LONG_BRANCH_PIC_IN_SHLIB && LONG_BRANCH_VIA_PLT) \ |
2059 | || RELATIVE_DYNAMIC_RELOCS) | |
30667bf3 AM |
2060 | /* This function is called via elf_link_hash_traverse to discard space |
2061 | we allocated for relocs that it turned out we didn't need. */ | |
2062 | ||
2063 | static boolean | |
2064 | hppa_discard_copies (h, inf) | |
2065 | struct elf_link_hash_entry *h; | |
2066 | PTR inf; | |
2067 | { | |
2068 | struct elf32_hppa_dyn_reloc_entry *s; | |
2069 | struct elf32_hppa_link_hash_entry *eh; | |
2070 | struct bfd_link_info *info; | |
2071 | ||
2072 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
2073 | info = (struct bfd_link_info *) inf; | |
2074 | ||
74d1c347 | 2075 | #if ! LONG_BRANCH_PIC_IN_SHLIB && LONG_BRANCH_VIA_PLT |
30667bf3 AM |
2076 | /* Handle the stub reloc case. If we have a plt entry for the |
2077 | function, we won't be needing long branch stubs. s->count will | |
2078 | only be zero for stub relocs, which provides a handy way of | |
2079 | flagging these relocs, and means we need do nothing special for | |
2080 | the forced local and symbolic link case. */ | |
2081 | if (eh->stub_reloc_sec != NULL | |
2082 | && eh->elf.plt.offset != (bfd_vma) -1) | |
2083 | { | |
2084 | for (s = eh->reloc_entries; s != NULL; s = s->next) | |
2085 | if (s->count == 0) | |
2086 | s->section->_raw_size -= sizeof (Elf32_External_Rela); | |
2087 | } | |
2088 | #endif | |
2089 | ||
74d1c347 | 2090 | #if RELATIVE_DYNAMIC_RELOCS |
30667bf3 AM |
2091 | /* If a symbol has been forced local or we have found a regular |
2092 | definition for the symbolic link case, then we won't be needing | |
2093 | any relocs. */ | |
30667bf3 AM |
2094 | if (eh->elf.dynindx == -1 |
2095 | || ((eh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
2096 | && eh->elf.root.type != bfd_link_hash_defweak | |
2097 | && info->symbolic)) | |
2098 | { | |
2099 | for (s = eh->reloc_entries; s != NULL; s = s->next) | |
2100 | s->section->_raw_size -= s->count * sizeof (Elf32_External_Rela); | |
2101 | } | |
2102 | #endif | |
2103 | ||
2104 | return true; | |
2105 | } | |
2106 | #endif | |
2107 | ||
2108 | ||
d5c73c2f AM |
2109 | /* This function is called via elf_link_hash_traverse to force |
2110 | millicode symbols local so they do not end up as globals in the | |
2111 | dynamic symbol table. We ought to be able to do this in | |
2112 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2113 | for all dynamic symbols. Arguably, this is a bug in | |
2114 | elf_adjust_dynamic_symbol. */ | |
2115 | ||
2116 | static boolean | |
2117 | clobber_millicode_symbols (h, info) | |
2118 | struct elf_link_hash_entry *h; | |
2119 | struct bfd_link_info *info; | |
2120 | { | |
2121 | if (h->type == STT_PARISC_MILLI) | |
2122 | { | |
2123 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL; | |
2124 | elf32_hppa_hide_symbol(info, h); | |
2125 | } | |
2126 | return true; | |
2127 | } | |
2128 | ||
2129 | ||
30667bf3 AM |
2130 | /* Set the sizes of the dynamic sections. */ |
2131 | ||
2132 | static boolean | |
2133 | elf32_hppa_size_dynamic_sections (output_bfd, info) | |
2134 | bfd *output_bfd; | |
2135 | struct bfd_link_info *info; | |
2136 | { | |
2137 | struct elf32_hppa_link_hash_table *hplink; | |
2138 | bfd *dynobj; | |
2139 | asection *s; | |
2140 | boolean relocs; | |
2141 | boolean reltext; | |
2142 | ||
2143 | hplink = hppa_link_hash_table (info); | |
74d1c347 | 2144 | dynobj = hplink->root.dynobj; |
30667bf3 AM |
2145 | BFD_ASSERT (dynobj != NULL); |
2146 | ||
74d1c347 | 2147 | if (hplink->root.dynamic_sections_created) |
30667bf3 | 2148 | { |
74d1c347 AM |
2149 | const char *funcname; |
2150 | bfd *i; | |
2151 | ||
30667bf3 AM |
2152 | /* Set the contents of the .interp section to the interpreter. */ |
2153 | if (! info->shared) | |
2154 | { | |
2155 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
2156 | BFD_ASSERT (s != NULL); | |
2157 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; | |
2158 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2159 | } | |
74d1c347 | 2160 | |
d5c73c2f AM |
2161 | /* Force millicode symbols local. */ |
2162 | elf_link_hash_traverse (&hplink->root, | |
2163 | clobber_millicode_symbols, | |
2164 | info); | |
2165 | ||
74d1c347 AM |
2166 | /* DT_INIT and DT_FINI need a .plt entry. Make sure they have |
2167 | one. */ | |
2168 | funcname = info->init_function; | |
2169 | while (1) | |
2170 | { | |
2171 | if (funcname != NULL) | |
2172 | { | |
2173 | struct elf_link_hash_entry *h; | |
2174 | ||
2175 | h = elf_link_hash_lookup (&hplink->root, | |
2176 | funcname, | |
2177 | false, false, false); | |
2178 | if (h != NULL | |
2179 | && (h->elf_link_hash_flags & (ELF_LINK_HASH_REF_REGULAR | |
2180 | | ELF_LINK_HASH_DEF_REGULAR))) | |
2181 | { | |
2182 | if (h->plt.refcount <= 0) | |
2183 | { | |
2184 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
2185 | ||
2186 | /* Make an entry in the .plt section. We know | |
2187 | the function doesn't have a plabel by the | |
2188 | refcount */ | |
2189 | s = hplink->splt; | |
2190 | h->plt.offset = s->_raw_size; | |
2191 | s->_raw_size += PLT_ENTRY_SIZE; | |
2192 | ||
2193 | /* Make sure this symbol is output as a dynamic | |
2194 | symbol. */ | |
2195 | if (h->dynindx == -1) | |
2196 | { | |
2197 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2198 | return false; | |
2199 | } | |
2200 | ||
2201 | /* Make an entry for the reloc too. */ | |
2202 | s = hplink->srelplt; | |
2203 | s->_raw_size += sizeof (Elf32_External_Rela); | |
2204 | } | |
2205 | ||
2206 | ((struct elf32_hppa_link_hash_entry *) h)->plt_abs = 1; | |
2207 | } | |
2208 | } | |
2209 | if (funcname == info->fini_function) | |
2210 | break; | |
2211 | funcname = info->fini_function; | |
2212 | } | |
2213 | ||
2214 | /* Set up .plt offsets for local plabels. */ | |
2215 | for (i = info->input_bfds; i; i = i->link_next) | |
2216 | { | |
2217 | bfd_signed_vma *local_plt; | |
2218 | bfd_signed_vma *end_local_plt; | |
2219 | bfd_size_type locsymcount; | |
2220 | Elf_Internal_Shdr *symtab_hdr; | |
2221 | ||
2222 | local_plt = elf_local_got_refcounts (i); | |
2223 | if (!local_plt) | |
2224 | continue; | |
2225 | ||
2226 | symtab_hdr = &elf_tdata (i)->symtab_hdr; | |
2227 | locsymcount = symtab_hdr->sh_info; | |
2228 | local_plt += locsymcount; | |
2229 | end_local_plt = local_plt + locsymcount; | |
2230 | ||
2231 | for (; local_plt < end_local_plt; ++local_plt) | |
2232 | { | |
2233 | if (*local_plt > 0) | |
2234 | { | |
2235 | s = hplink->splt; | |
2236 | *local_plt = s->_raw_size; | |
2237 | s->_raw_size += PLT_ENTRY_SIZE; | |
2238 | if (info->shared) | |
2239 | hplink->srelplt->_raw_size += sizeof (Elf32_External_Rela); | |
2240 | } | |
2241 | else | |
2242 | *local_plt = (bfd_vma) -1; | |
2243 | } | |
2244 | } | |
30667bf3 AM |
2245 | } |
2246 | else | |
2247 | { | |
2248 | /* Run through the function symbols, looking for any that are | |
2249 | PIC, and allocate space for the necessary .plt entries so | |
2250 | that %r19 will be set up. */ | |
2251 | if (! info->shared) | |
2252 | elf_link_hash_traverse (&hplink->root, | |
2253 | hppa_handle_PIC_calls, | |
2254 | info); | |
2255 | ||
2256 | /* We may have created entries in the .rela.got section. | |
2257 | However, if we are not creating the dynamic sections, we will | |
2258 | not actually use these entries. Reset the size of .rela.got, | |
2259 | which will cause it to get stripped from the output file | |
2260 | below. */ | |
2261 | hplink->srelgot->_raw_size = 0; | |
2262 | } | |
2263 | ||
74d1c347 AM |
2264 | #if ((! LONG_BRANCH_PIC_IN_SHLIB && LONG_BRANCH_VIA_PLT) \ |
2265 | || RELATIVE_DYNAMIC_RELOCS) | |
30667bf3 AM |
2266 | /* If this is a -Bsymbolic shared link, then we need to discard all |
2267 | relocs against symbols defined in a regular object. We also need | |
2268 | to lose relocs we've allocated for long branch stubs if we know | |
2269 | we won't be generating a stub. */ | |
2270 | if (info->shared) | |
2271 | elf_link_hash_traverse (&hplink->root, | |
2272 | hppa_discard_copies, | |
2273 | info); | |
2274 | #endif | |
2275 | ||
2276 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2277 | determined the sizes of the various dynamic sections. Allocate | |
2278 | memory for them. */ | |
2279 | relocs = false; | |
2280 | reltext = false; | |
2281 | for (s = dynobj->sections; s != NULL; s = s->next) | |
2282 | { | |
2283 | const char *name; | |
2284 | ||
2285 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
2286 | continue; | |
2287 | ||
2288 | /* It's OK to base decisions on the section name, because none | |
2289 | of the dynobj section names depend upon the input files. */ | |
2290 | name = bfd_get_section_name (dynobj, s); | |
2291 | ||
2292 | if (strncmp (name, ".rela", 5) == 0) | |
2293 | { | |
2294 | if (s->_raw_size != 0) | |
2295 | { | |
2296 | asection *target; | |
2297 | ||
2298 | /* Remember whether there are any reloc sections other | |
2299 | than .rela.plt. */ | |
2300 | if (strcmp (name+5, ".plt") != 0) | |
2301 | { | |
2302 | const char *outname; | |
2303 | ||
2304 | relocs = true; | |
2305 | ||
2306 | /* If this relocation section applies to a read only | |
2307 | section, then we probably need a DT_TEXTREL | |
2308 | entry. The entries in the .rela.plt section | |
2309 | really apply to the .got section, which we | |
2310 | created ourselves and so know is not readonly. */ | |
2311 | outname = bfd_get_section_name (output_bfd, | |
2312 | s->output_section); | |
2313 | target = bfd_get_section_by_name (output_bfd, outname + 5); | |
2314 | if (target != NULL | |
2315 | && (target->flags & SEC_READONLY) != 0 | |
2316 | && (target->flags & SEC_ALLOC) != 0) | |
2317 | reltext = true; | |
2318 | } | |
2319 | ||
2320 | /* We use the reloc_count field as a counter if we need | |
2321 | to copy relocs into the output file. */ | |
2322 | s->reloc_count = 0; | |
2323 | } | |
2324 | } | |
2325 | else if (strcmp (name, ".plt") == 0) | |
2326 | ; | |
2327 | else if (strcmp (name, ".got") == 0) | |
2328 | ; | |
2329 | else | |
2330 | { | |
2331 | /* It's not one of our sections, so don't allocate space. */ | |
2332 | continue; | |
2333 | } | |
2334 | ||
2335 | if (s->_raw_size == 0) | |
2336 | { | |
2337 | /* If we don't need this section, strip it from the | |
2338 | output file. This is mostly to handle .rela.bss and | |
2339 | .rela.plt. We must create both sections in | |
2340 | create_dynamic_sections, because they must be created | |
2341 | before the linker maps input sections to output | |
2342 | sections. The linker does that before | |
2343 | adjust_dynamic_symbol is called, and it is that | |
2344 | function which decides whether anything needs to go | |
2345 | into these sections. */ | |
2346 | _bfd_strip_section_from_output (info, s); | |
2347 | continue; | |
2348 | } | |
2349 | ||
2350 | /* Allocate memory for the section contents. Zero it, because | |
2351 | we may not fill in all the reloc sections. */ | |
2352 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); | |
2353 | if (s->contents == NULL && s->_raw_size != 0) | |
2354 | return false; | |
2355 | } | |
2356 | ||
74d1c347 | 2357 | if (hplink->root.dynamic_sections_created) |
30667bf3 AM |
2358 | { |
2359 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2360 | actually has nothing to do with the PLT, it is how we | |
2361 | communicate the LTP value of a load module to the dynamic | |
2362 | linker. */ | |
2363 | if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)) | |
2364 | return false; | |
2365 | ||
2366 | /* Add some entries to the .dynamic section. We fill in the | |
2367 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2368 | must add the entries now so that we get the correct size for | |
2369 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2370 | dynamic linker and used by the debugger. */ | |
2371 | if (! info->shared) | |
2372 | { | |
2373 | if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0)) | |
2374 | return false; | |
2375 | } | |
2376 | ||
2377 | if (hplink->srelplt->_raw_size != 0) | |
2378 | { | |
2379 | if (! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0) | |
2380 | || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA) | |
2381 | || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0)) | |
2382 | return false; | |
2383 | } | |
2384 | ||
2385 | if (relocs) | |
2386 | { | |
2387 | if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0) | |
2388 | || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0) | |
2389 | || ! bfd_elf32_add_dynamic_entry (info, DT_RELAENT, | |
2390 | sizeof (Elf32_External_Rela))) | |
2391 | return false; | |
2392 | } | |
2393 | ||
2394 | if (reltext) | |
2395 | { | |
2396 | if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0)) | |
2397 | return false; | |
2398 | info->flags |= DF_TEXTREL; | |
2399 | } | |
2400 | } | |
2401 | ||
2402 | return true; | |
2403 | } | |
2404 | ||
2405 | ||
2406 | /* External entry points for sizing and building linker stubs. */ | |
2407 | ||
2408 | /* Determine and set the size of the stub section for a final link. | |
2409 | ||
2410 | The basic idea here is to examine all the relocations looking for | |
2411 | PC-relative calls to a target that is unreachable with a "bl" | |
2412 | instruction. */ | |
2413 | ||
2414 | boolean | |
2415 | elf32_hppa_size_stubs (stub_bfd, multi_subspace, info, | |
2416 | add_stub_section, layout_sections_again) | |
2417 | bfd *stub_bfd; | |
2418 | boolean multi_subspace; | |
2419 | struct bfd_link_info *info; | |
2420 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
2421 | void (*layout_sections_again) PARAMS ((void)); | |
2422 | { | |
2423 | bfd *input_bfd; | |
2424 | asection *section; | |
2425 | Elf_Internal_Sym *local_syms, **all_local_syms; | |
2426 | unsigned int i, indx, bfd_count, sec_count; | |
2427 | struct elf32_hppa_link_hash_table *hplink; | |
2428 | boolean stub_changed = 0; | |
2429 | ||
2430 | hplink = hppa_link_hash_table (info); | |
2431 | ||
2432 | /* Stash our params away. */ | |
2433 | hplink->stub_bfd = stub_bfd; | |
2434 | hplink->multi_subspace = multi_subspace; | |
2435 | hplink->add_stub_section = add_stub_section; | |
2436 | hplink->layout_sections_again = layout_sections_again; | |
2437 | ||
2438 | /* Count the number of input BFDs and the total number of input sections. */ | |
2439 | for (input_bfd = info->input_bfds, bfd_count = 0, sec_count = 0; | |
2440 | input_bfd != NULL; | |
2441 | input_bfd = input_bfd->link_next) | |
2442 | { | |
2443 | bfd_count += 1; | |
2444 | sec_count += input_bfd->section_count; | |
2445 | } | |
2446 | ||
2447 | hplink->stub_section_created | |
2448 | = (asection **) bfd_zmalloc (sizeof (asection *) * sec_count); | |
2449 | if (hplink->stub_section_created == NULL) | |
2450 | return false; | |
2451 | ||
2452 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
2453 | hplink->reloc_section_created | |
2454 | = (asection **) bfd_zmalloc (sizeof (asection *) * sec_count); | |
2455 | if (hplink->reloc_section_created == NULL) | |
2456 | goto error_ret_free_stub; | |
2457 | #endif | |
2458 | ||
2459 | /* We want to read in symbol extension records only once. To do this | |
2460 | we need to read in the local symbols in parallel and save them for | |
2461 | later use; so hold pointers to the local symbols in an array. */ | |
2462 | all_local_syms | |
2463 | = (Elf_Internal_Sym **) bfd_zmalloc (sizeof (Elf_Internal_Sym *) | |
2464 | * bfd_count); | |
2465 | if (all_local_syms == NULL) | |
2466 | goto error_ret_free_reloc; | |
2467 | ||
2468 | /* Walk over all the input BFDs, swapping in local symbols. | |
2469 | If we are creating a shared library, create hash entries for the | |
2470 | export stubs. */ | |
2471 | for (input_bfd = info->input_bfds, indx = 0, sec_count = 0; | |
2472 | input_bfd != NULL; | |
2473 | input_bfd = input_bfd->link_next, indx++) | |
2474 | { | |
2475 | Elf_Internal_Shdr *symtab_hdr; | |
2476 | Elf_Internal_Sym *isym; | |
2477 | Elf32_External_Sym *ext_syms, *esym; | |
edd21aca | 2478 | |
252b5132 RH |
2479 | /* We'll need the symbol table in a second. */ |
2480 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2481 | if (symtab_hdr->sh_info == 0) | |
2482 | continue; | |
2483 | ||
edd21aca AM |
2484 | /* We need an array of the local symbols attached to the input bfd. |
2485 | Unfortunately, we're going to have to read & swap them in. */ | |
2486 | local_syms = (Elf_Internal_Sym *) | |
2487 | bfd_malloc (symtab_hdr->sh_info * sizeof (Elf_Internal_Sym)); | |
2488 | if (local_syms == NULL) | |
2489 | { | |
2490 | goto error_ret_free_local; | |
2491 | } | |
2492 | all_local_syms[indx] = local_syms; | |
2493 | ext_syms = (Elf32_External_Sym *) | |
2494 | bfd_malloc (symtab_hdr->sh_info * sizeof (Elf32_External_Sym)); | |
2495 | if (ext_syms == NULL) | |
2496 | { | |
2497 | goto error_ret_free_local; | |
2498 | } | |
2499 | ||
2500 | if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
30667bf3 | 2501 | || (bfd_read (ext_syms, 1, |
edd21aca AM |
2502 | (symtab_hdr->sh_info * sizeof (Elf32_External_Sym)), |
2503 | input_bfd) | |
2504 | != (symtab_hdr->sh_info * sizeof (Elf32_External_Sym)))) | |
2505 | { | |
2506 | free (ext_syms); | |
2507 | goto error_ret_free_local; | |
2508 | } | |
2509 | ||
2510 | /* Swap the local symbols in. */ | |
2511 | isym = local_syms; | |
2512 | esym = ext_syms; | |
2513 | for (i = 0; i < symtab_hdr->sh_info; i++, esym++, isym++) | |
2514 | bfd_elf32_swap_symbol_in (input_bfd, esym, isym); | |
2515 | ||
2516 | /* Now we can free the external symbols. */ | |
2517 | free (ext_syms); | |
edd21aca | 2518 | |
d5c73c2f AM |
2519 | /* Go looking for .init and .fini sections. We only want one |
2520 | stub section for each of .init* and .fini* because glibc | |
2521 | splits the _init and _fini functions into multiple parts, and | |
2522 | putting a stub in the middle of a function is not a good idea. | |
2523 | It would be better to merge all the stub sections for an | |
2524 | output section if the output section + stubs is small enough. | |
2525 | This would fix the .init and .fini case and also allow stubs | |
2526 | to be merged. It's more linker work though. */ | |
2527 | for (section = input_bfd->sections; | |
2528 | section != NULL; | |
2529 | section = section->next, sec_count++) | |
2530 | { | |
2531 | if (hplink->first_init_sec == 0) | |
2532 | { | |
2533 | if (strncmp (section->name, ".init", 5) == 0) | |
2534 | hplink->first_init_sec = sec_count + 1; | |
2535 | } | |
2536 | if (hplink->first_fini_sec == 0) | |
2537 | { | |
2538 | if (strncmp (section->name, ".fini", 5) == 0) | |
2539 | hplink->first_fini_sec = sec_count + 1; | |
2540 | } | |
2541 | ||
2542 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
2543 | /* If this is a shared link, find all the stub reloc | |
2544 | sections. */ | |
2545 | if (info->shared) | |
2546 | { | |
2547 | char *name; | |
2548 | asection *reloc_sec; | |
2549 | ||
2550 | name = bfd_malloc (strlen (section->name) | |
2551 | + sizeof STUB_SUFFIX | |
2552 | + 5); | |
2553 | if (name == NULL) | |
2554 | return false; | |
2555 | sprintf (name, ".rela%s%s", section->name, STUB_SUFFIX); | |
2556 | reloc_sec = bfd_get_section_by_name (hplink->root.dynobj, name); | |
2557 | hplink->reloc_section_created[sec_count] = reloc_sec; | |
2558 | free (name); | |
2559 | } | |
2560 | #endif | |
2561 | } | |
2562 | ||
30667bf3 AM |
2563 | if (info->shared && hplink->multi_subspace) |
2564 | { | |
2565 | unsigned int symndx; | |
2566 | unsigned int symcount; | |
2567 | ||
2568 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2569 | - symtab_hdr->sh_info); | |
2570 | ||
2571 | /* Look through the global syms for functions; We need to | |
2572 | build export stubs for all globally visible functions. */ | |
2573 | for (symndx = 0; symndx < symcount; symndx++) | |
2574 | { | |
2575 | struct elf32_hppa_link_hash_entry *hash; | |
2576 | ||
2577 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2578 | elf_sym_hashes (input_bfd)[symndx]); | |
2579 | ||
2580 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2581 | || hash->elf.root.type == bfd_link_hash_warning) | |
2582 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2583 | hash->elf.root.u.i.link); | |
2584 | ||
2585 | /* At this point in the link, undefined syms have been | |
2586 | resolved, so we need to check that the symbol was | |
2587 | defined in this BFD. */ | |
2588 | if ((hash->elf.root.type == bfd_link_hash_defined | |
2589 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2590 | && hash->elf.type == STT_FUNC | |
2591 | && hash->elf.root.u.def.section->output_section != NULL | |
2592 | && hash->elf.root.u.def.section->owner == input_bfd | |
2593 | && (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
2594 | && !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) | |
2595 | && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT) | |
2596 | { | |
2597 | asection *sec; | |
2598 | const char *stub_name; | |
2599 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2600 | ||
2601 | sec = hash->elf.root.u.def.section; | |
2602 | stub_name = hash->elf.root.root.string; | |
2603 | stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table, | |
2604 | stub_name, | |
2605 | false, false); | |
2606 | if (stub_entry == NULL) | |
2607 | { | |
2608 | stub_entry = hppa_add_stub (stub_name, | |
2609 | sec, | |
d5c73c2f AM |
2610 | (sec_count + sec->index |
2611 | - input_bfd->section_count), | |
30667bf3 AM |
2612 | info); |
2613 | if (!stub_entry) | |
2614 | goto error_ret_free_local; | |
2615 | ||
2616 | stub_entry->target_value = hash->elf.root.u.def.value; | |
2617 | stub_entry->target_section = hash->elf.root.u.def.section; | |
2618 | stub_entry->stub_type = hppa_stub_export; | |
2619 | stub_entry->h = hash; | |
2620 | stub_changed = 1; | |
2621 | } | |
2622 | else | |
2623 | { | |
2624 | (*_bfd_error_handler) (_("%s: duplicate export stub %s"), | |
2625 | bfd_get_filename (input_bfd), | |
2626 | stub_name); | |
2627 | } | |
2628 | } | |
2629 | } | |
30667bf3 AM |
2630 | } |
2631 | } | |
edd21aca AM |
2632 | |
2633 | while (1) | |
2634 | { | |
30667bf3 AM |
2635 | asection *stub_sec; |
2636 | ||
2637 | for (input_bfd = info->input_bfds, indx = 0, sec_count = 0; | |
2638 | input_bfd != NULL; | |
2639 | input_bfd = input_bfd->link_next, indx++) | |
2640 | { | |
2641 | Elf_Internal_Shdr *symtab_hdr; | |
2642 | ||
2643 | /* We'll need the symbol table in a second. */ | |
2644 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2645 | if (symtab_hdr->sh_info == 0) | |
2646 | continue; | |
2647 | ||
2648 | local_syms = all_local_syms[indx]; | |
2649 | ||
2650 | /* Walk over each section attached to the input bfd. */ | |
2651 | for (section = input_bfd->sections; | |
2652 | section != NULL; | |
2653 | section = section->next, sec_count++) | |
2654 | { | |
2655 | Elf_Internal_Shdr *input_rel_hdr; | |
2656 | Elf32_External_Rela *external_relocs, *erelaend, *erela; | |
2657 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; | |
2658 | ||
2659 | /* If there aren't any relocs, then there's nothing more | |
2660 | to do. */ | |
2661 | if ((section->flags & SEC_RELOC) == 0 | |
2662 | || section->reloc_count == 0) | |
2663 | continue; | |
2664 | ||
2665 | /* Allocate space for the external relocations. */ | |
2666 | external_relocs | |
2667 | = ((Elf32_External_Rela *) | |
2668 | bfd_malloc (section->reloc_count | |
2669 | * sizeof (Elf32_External_Rela))); | |
2670 | if (external_relocs == NULL) | |
2671 | { | |
2672 | goto error_ret_free_local; | |
2673 | } | |
2674 | ||
2675 | /* Likewise for the internal relocations. */ | |
2676 | internal_relocs = ((Elf_Internal_Rela *) | |
2677 | bfd_malloc (section->reloc_count | |
2678 | * sizeof (Elf_Internal_Rela))); | |
2679 | if (internal_relocs == NULL) | |
2680 | { | |
2681 | free (external_relocs); | |
2682 | goto error_ret_free_local; | |
2683 | } | |
2684 | ||
2685 | /* Read in the external relocs. */ | |
2686 | input_rel_hdr = &elf_section_data (section)->rel_hdr; | |
2687 | if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0 | |
2688 | || bfd_read (external_relocs, 1, | |
2689 | input_rel_hdr->sh_size, | |
2690 | input_bfd) != input_rel_hdr->sh_size) | |
2691 | { | |
2692 | free (external_relocs); | |
2693 | error_ret_free_internal: | |
2694 | free (internal_relocs); | |
2695 | goto error_ret_free_local; | |
2696 | } | |
2697 | ||
2698 | /* Swap in the relocs. */ | |
2699 | erela = external_relocs; | |
2700 | erelaend = erela + section->reloc_count; | |
2701 | irela = internal_relocs; | |
2702 | for (; erela < erelaend; erela++, irela++) | |
2703 | bfd_elf32_swap_reloca_in (input_bfd, erela, irela); | |
2704 | ||
2705 | /* We're done with the external relocs, free them. */ | |
2706 | free (external_relocs); | |
2707 | ||
2708 | /* Now examine each relocation. */ | |
2709 | irela = internal_relocs; | |
2710 | irelaend = irela + section->reloc_count; | |
2711 | for (; irela < irelaend; irela++) | |
2712 | { | |
2713 | unsigned int r_type, r_indx; | |
2714 | enum elf32_hppa_stub_type stub_type; | |
2715 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2716 | asection *sym_sec; | |
2717 | bfd_vma sym_value; | |
2718 | bfd_vma destination; | |
2719 | struct elf32_hppa_link_hash_entry *hash; | |
2720 | char *stub_name; | |
2721 | ||
2722 | r_type = ELF32_R_TYPE (irela->r_info); | |
2723 | r_indx = ELF32_R_SYM (irela->r_info); | |
2724 | ||
2725 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2726 | { | |
2727 | bfd_set_error (bfd_error_bad_value); | |
2728 | goto error_ret_free_internal; | |
2729 | } | |
2730 | ||
2731 | /* Only look for stubs on call instructions. */ | |
2732 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
2733 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
2734 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
2735 | continue; | |
2736 | ||
2737 | /* Now determine the call target, its name, value, | |
2738 | section. */ | |
2739 | sym_sec = NULL; | |
2740 | sym_value = 0; | |
2741 | destination = 0; | |
2742 | hash = NULL; | |
2743 | if (r_indx < symtab_hdr->sh_info) | |
2744 | { | |
2745 | /* It's a local symbol. */ | |
2746 | Elf_Internal_Sym *sym; | |
2747 | Elf_Internal_Shdr *hdr; | |
2748 | ||
2749 | sym = local_syms + r_indx; | |
2750 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
2751 | sym_sec = hdr->bfd_section; | |
2752 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
2753 | sym_value = sym->st_value; | |
2754 | destination = (sym_value + irela->r_addend | |
2755 | + sym_sec->output_offset | |
2756 | + sym_sec->output_section->vma); | |
2757 | } | |
2758 | else | |
2759 | { | |
2760 | /* It's an external symbol. */ | |
2761 | int e_indx; | |
2762 | ||
2763 | e_indx = r_indx - symtab_hdr->sh_info; | |
2764 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2765 | elf_sym_hashes (input_bfd)[e_indx]); | |
2766 | ||
2767 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2768 | || hash->elf.root.type == bfd_link_hash_warning) | |
2769 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2770 | hash->elf.root.u.i.link); | |
2771 | ||
2772 | if (hash->elf.root.type == bfd_link_hash_defined | |
2773 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2774 | { | |
2775 | sym_sec = hash->elf.root.u.def.section; | |
2776 | sym_value = hash->elf.root.u.def.value; | |
2777 | if (sym_sec->output_section != NULL) | |
2778 | destination = (sym_value + irela->r_addend | |
2779 | + sym_sec->output_offset | |
2780 | + sym_sec->output_section->vma); | |
2781 | } | |
2782 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
2783 | { | |
2784 | if (! info->shared) | |
2785 | continue; | |
2786 | } | |
2787 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
2788 | { | |
2789 | if (! (info->shared | |
2790 | && !info->no_undefined | |
2791 | && (ELF_ST_VISIBILITY (hash->elf.other) | |
2792 | == STV_DEFAULT))) | |
2793 | continue; | |
2794 | } | |
2795 | else | |
2796 | { | |
2797 | bfd_set_error (bfd_error_bad_value); | |
2798 | goto error_ret_free_internal; | |
2799 | } | |
2800 | } | |
2801 | ||
2802 | /* Determine what (if any) linker stub is needed. */ | |
2803 | stub_type = hppa_type_of_stub (section, irela, hash, | |
2804 | destination); | |
2805 | if (stub_type == hppa_stub_none) | |
2806 | continue; | |
2807 | ||
2808 | /* Get the name of this stub. */ | |
2809 | stub_name = hppa_stub_name (section, sym_sec, hash, irela); | |
2810 | if (!stub_name) | |
2811 | goto error_ret_free_internal; | |
2812 | ||
2813 | stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table, | |
2814 | stub_name, | |
2815 | false, false); | |
2816 | if (stub_entry != NULL) | |
2817 | { | |
2818 | /* The proper stub has already been created. */ | |
2819 | free (stub_name); | |
2820 | continue; | |
2821 | } | |
2822 | ||
2823 | stub_entry = hppa_add_stub (stub_name, section, | |
2824 | sec_count, info); | |
2825 | if (stub_entry == NULL) | |
2826 | { | |
2827 | free (stub_name); | |
2828 | goto error_ret_free_local; | |
2829 | } | |
2830 | ||
2831 | stub_entry->target_value = sym_value; | |
2832 | stub_entry->target_section = sym_sec; | |
2833 | stub_entry->stub_type = stub_type; | |
2834 | if (info->shared) | |
2835 | { | |
2836 | if (stub_type == hppa_stub_import) | |
2837 | stub_entry->stub_type = hppa_stub_import_shared; | |
2838 | else if (stub_type == hppa_stub_long_branch | |
2839 | && (LONG_BRANCH_PIC_IN_SHLIB || hash == NULL)) | |
2840 | stub_entry->stub_type = hppa_stub_long_branch_shared; | |
2841 | } | |
2842 | stub_entry->h = hash; | |
2843 | stub_changed = 1; | |
2844 | } | |
2845 | ||
2846 | /* We're done with the internal relocs, free them. */ | |
2847 | free (internal_relocs); | |
2848 | } | |
2849 | } | |
2850 | ||
2851 | if (!stub_changed) | |
2852 | break; | |
2853 | ||
2854 | /* OK, we've added some stubs. Find out the new size of the | |
2855 | stub sections. */ | |
30667bf3 AM |
2856 | for (stub_sec = hplink->stub_bfd->sections; |
2857 | stub_sec != NULL; | |
2858 | stub_sec = stub_sec->next) | |
2859 | { | |
74d1c347 AM |
2860 | stub_sec->_raw_size = 0; |
2861 | stub_sec->_cooked_size = 0; | |
2862 | } | |
2863 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
2864 | for (i = 0; i < sec_count; i++) | |
2865 | { | |
2866 | stub_sec = hplink->reloc_section_created[i]; | |
2867 | if (stub_sec != NULL) | |
2868 | { | |
2869 | stub_sec->_raw_size = 0; | |
2870 | stub_sec->_cooked_size = 0; | |
2871 | } | |
30667bf3 | 2872 | } |
74d1c347 AM |
2873 | #endif |
2874 | ||
2875 | bfd_hash_traverse (&hplink->stub_hash_table, | |
2876 | hppa_size_one_stub, | |
2877 | hplink); | |
2878 | ||
30667bf3 AM |
2879 | /* Ask the linker to do its stuff. */ |
2880 | (*hplink->layout_sections_again) (); | |
2881 | stub_changed = 0; | |
2882 | } | |
2883 | ||
2884 | /* We're done with the local symbols, free them. */ | |
2885 | for (i = 0; i < bfd_count; i++) | |
2886 | if (all_local_syms[i]) | |
2887 | free (all_local_syms[i]); | |
2888 | free (all_local_syms); | |
2889 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
2890 | free (hplink->reloc_section_created); | |
2891 | #endif | |
2892 | free (hplink->stub_section_created); | |
2893 | return true; | |
2894 | ||
2895 | error_ret_free_local: | |
2896 | for (i = 0; i < bfd_count; i++) | |
2897 | if (all_local_syms[i]) | |
2898 | free (all_local_syms[i]); | |
2899 | free (all_local_syms); | |
2900 | ||
2901 | error_ret_free_reloc: | |
2902 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
2903 | free (hplink->reloc_section_created); | |
2904 | error_ret_free_stub: | |
2905 | #endif | |
2906 | free (hplink->stub_section_created); | |
2907 | return false; | |
2908 | } | |
2909 | ||
2910 | ||
2911 | /* For a final link, this function is called after we have sized the | |
2912 | stubs to provide a value for __gp. */ | |
2913 | ||
2914 | boolean | |
2915 | elf32_hppa_set_gp (abfd, info) | |
2916 | bfd *abfd; | |
2917 | struct bfd_link_info *info; | |
2918 | { | |
74d1c347 | 2919 | struct elf32_hppa_link_hash_table *hplink; |
30667bf3 AM |
2920 | struct elf_link_hash_entry *h; |
2921 | asection *sec; | |
2922 | bfd_vma gp_val; | |
2923 | ||
74d1c347 AM |
2924 | hplink = hppa_link_hash_table (info); |
2925 | h = elf_link_hash_lookup (&hplink->root, "$global$", | |
30667bf3 AM |
2926 | false, false, false); |
2927 | ||
2928 | if (h != NULL && h->root.type == bfd_link_hash_defined) | |
2929 | { | |
2930 | gp_val = h->root.u.def.value; | |
2931 | sec = h->root.u.def.section; | |
2932 | } | |
2933 | else | |
2934 | { | |
74d1c347 AM |
2935 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
2936 | or .data, if these sections exist. In the case of choosing | |
2937 | .plt try to make the LTP ideal for addressing anywhere in the | |
2938 | .plt or .got with a 14 bit signed offset. Typically, the end | |
2939 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
2940 | if either the .plt or .got is larger than 0x2000. If both | |
2941 | the .plt and .got are smaller than 0x2000, choose the end of | |
2942 | the .plt section. */ | |
2943 | ||
2944 | sec = hplink->splt; | |
2945 | if (sec != NULL) | |
30667bf3 | 2946 | { |
74d1c347 AM |
2947 | gp_val = sec->_raw_size; |
2948 | if (gp_val > 0x2000 | |
2949 | || (hplink->sgot && hplink->sgot->_raw_size > 0x2000)) | |
2950 | { | |
2951 | gp_val = 0x2000; | |
2952 | } | |
2953 | } | |
2954 | else | |
2955 | { | |
2956 | gp_val = 0; | |
2957 | sec = hplink->sgot; | |
2958 | if (sec != NULL) | |
2959 | { | |
2960 | /* We know we don't have a .plt. If .got is large, | |
2961 | offset our LTP. */ | |
2962 | if (sec->_raw_size > 0x2000) | |
2963 | gp_val = 0x2000; | |
2964 | } | |
2965 | else | |
2966 | { | |
2967 | /* No .plt or .got. Who cares what the LTP is? */ | |
2968 | sec = bfd_get_section_by_name (abfd, ".data"); | |
2969 | } | |
30667bf3 AM |
2970 | } |
2971 | } | |
2972 | ||
74d1c347 AM |
2973 | if (sec != NULL) |
2974 | gp_val += sec->output_section->vma + sec->output_offset; | |
2975 | ||
2976 | elf_gp (abfd) = gp_val; | |
30667bf3 AM |
2977 | return true; |
2978 | } | |
2979 | ||
2980 | ||
2981 | /* Build all the stubs associated with the current output file. The | |
2982 | stubs are kept in a hash table attached to the main linker hash | |
2983 | table. We also set up the .plt entries for statically linked PIC | |
2984 | functions here. This function is called via hppaelf_finish in the | |
2985 | linker. */ | |
2986 | ||
2987 | boolean | |
2988 | elf32_hppa_build_stubs (info) | |
2989 | struct bfd_link_info *info; | |
2990 | { | |
2991 | asection *stub_sec; | |
2992 | struct bfd_hash_table *table; | |
2993 | struct elf32_hppa_link_hash_table *hplink; | |
2994 | ||
2995 | hplink = hppa_link_hash_table (info); | |
2996 | ||
2997 | for (stub_sec = hplink->stub_bfd->sections; | |
2998 | stub_sec != NULL; | |
2999 | stub_sec = stub_sec->next) | |
3000 | { | |
74d1c347 | 3001 | size_t size; |
30667bf3 AM |
3002 | |
3003 | /* Allocate memory to hold the linker stubs. */ | |
74d1c347 | 3004 | size = stub_sec->_raw_size; |
30667bf3 AM |
3005 | stub_sec->contents = (unsigned char *) bfd_zalloc (hplink->stub_bfd, |
3006 | size); | |
3007 | if (stub_sec->contents == NULL && size != 0) | |
3008 | return false; | |
74d1c347 | 3009 | stub_sec->_raw_size = 0; |
30667bf3 AM |
3010 | } |
3011 | ||
3012 | /* Build the stubs as directed by the stub hash table. */ | |
30667bf3 AM |
3013 | table = &hplink->stub_hash_table; |
3014 | bfd_hash_traverse (table, hppa_build_one_stub, info); | |
3015 | ||
3016 | return true; | |
3017 | } | |
3018 | ||
3019 | ||
3020 | /* Perform a relocation as part of a final link. */ | |
3021 | ||
3022 | static bfd_reloc_status_type | |
3023 | final_link_relocate (input_section, contents, rel, value, info, sym_sec, h) | |
3024 | asection *input_section; | |
3025 | bfd_byte *contents; | |
3026 | const Elf_Internal_Rela *rel; | |
3027 | bfd_vma value; | |
3028 | struct bfd_link_info *info; | |
3029 | asection *sym_sec; | |
3030 | struct elf32_hppa_link_hash_entry *h; | |
3031 | { | |
3032 | int insn; | |
3033 | unsigned int r_type = ELF32_R_TYPE (rel->r_info); | |
3034 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; | |
3035 | int r_format = howto->bitsize; | |
3036 | enum hppa_reloc_field_selector_type_alt r_field; | |
3037 | bfd *input_bfd = input_section->owner; | |
3038 | bfd_vma offset = rel->r_offset; | |
3039 | bfd_vma max_branch_offset = 0; | |
3040 | bfd_byte *hit_data = contents + offset; | |
3041 | bfd_signed_vma addend = rel->r_addend; | |
3042 | bfd_vma location; | |
3043 | struct elf32_hppa_stub_hash_entry *stub_entry = NULL; | |
3044 | int val; | |
3045 | ||
3046 | if (r_type == R_PARISC_NONE) | |
3047 | return bfd_reloc_ok; | |
3048 | ||
3049 | insn = bfd_get_32 (input_bfd, hit_data); | |
3050 | ||
3051 | /* Find out where we are and where we're going. */ | |
3052 | location = (offset + | |
3053 | input_section->output_offset + | |
3054 | input_section->output_section->vma); | |
3055 | ||
3056 | switch (r_type) | |
3057 | { | |
3058 | case R_PARISC_PCREL12F: | |
3059 | case R_PARISC_PCREL17F: | |
3060 | case R_PARISC_PCREL22F: | |
3061 | /* If this is a call to a function defined in another dynamic | |
3062 | library, or if it is a call to a PIC function in the same | |
74d1c347 AM |
3063 | object, or if this is a shared link and it is a call to a |
3064 | weak symbol which may or may not be in the same object, then | |
3065 | find the import stub in the stub hash. */ | |
30667bf3 AM |
3066 | if (sym_sec == NULL |
3067 | || sym_sec->output_section == NULL | |
74d1c347 AM |
3068 | || (h != NULL && |
3069 | (h->pic_call | |
3070 | || (h->elf.root.type == bfd_link_hash_defweak | |
3071 | && h->elf.dynindx != -1 | |
3072 | && h->elf.plt.offset != (bfd_vma) -1)))) | |
30667bf3 AM |
3073 | { |
3074 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
3075 | h, rel, info); | |
3076 | if (stub_entry != NULL) | |
3077 | { | |
3078 | value = (stub_entry->stub_offset | |
3079 | + stub_entry->stub_sec->output_offset | |
3080 | + stub_entry->stub_sec->output_section->vma); | |
3081 | addend = 0; | |
3082 | } | |
3083 | else if (sym_sec == NULL && h != NULL | |
3084 | && h->elf.root.type == bfd_link_hash_undefweak) | |
3085 | { | |
3086 | /* It's OK if undefined weak. Make undefined weak | |
3087 | branches go nowhere. */ | |
3088 | value = location; | |
3089 | addend = 0; | |
3090 | } | |
3091 | else | |
3092 | return bfd_reloc_notsupported; | |
3093 | } | |
3094 | /* Fall thru. */ | |
3095 | ||
3096 | case R_PARISC_PCREL21L: | |
3097 | case R_PARISC_PCREL17C: | |
3098 | case R_PARISC_PCREL17R: | |
3099 | case R_PARISC_PCREL14R: | |
3100 | case R_PARISC_PCREL14F: | |
3101 | /* Make it a pc relative offset. */ | |
3102 | value -= location; | |
3103 | addend -= 8; | |
3104 | break; | |
3105 | ||
3106 | case R_PARISC_DPREL21L: | |
3107 | case R_PARISC_DPREL14R: | |
3108 | case R_PARISC_DPREL14F: | |
3109 | /* For all the DP relative relocations, we need to examine the symbol's | |
3110 | section. If it's a code section, then "data pointer relative" makes | |
3111 | no sense. In that case we don't adjust the "value", and for 21 bit | |
3112 | addil instructions, we change the source addend register from %dp to | |
3113 | %r0. This situation commonly arises when a variable's "constness" | |
3114 | is declared differently from the way the variable is defined. For | |
3115 | instance: "extern int foo" with foo defined as "const int foo". */ | |
3116 | if (sym_sec == NULL) | |
3117 | break; | |
3118 | if ((sym_sec->flags & SEC_CODE) != 0) | |
3119 | { | |
3120 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3121 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3122 | { | |
3123 | insn &= ~ (0x1f << 21); | |
74d1c347 | 3124 | #if 1 /* debug them. */ |
30667bf3 AM |
3125 | (*_bfd_error_handler) |
3126 | (_("%s(%s+0x%lx): fixing %s"), | |
3127 | bfd_get_filename (input_bfd), | |
3128 | input_section->name, | |
3129 | (long) rel->r_offset, | |
3130 | howto->name); | |
3131 | #endif | |
3132 | } | |
3133 | /* Now try to make things easy for the dynamic linker. */ | |
3134 | ||
3135 | break; | |
3136 | } | |
74d1c347 | 3137 | /* Fall thru. */ |
30667bf3 AM |
3138 | |
3139 | case R_PARISC_DLTIND21L: | |
3140 | case R_PARISC_DLTIND14R: | |
3141 | case R_PARISC_DLTIND14F: | |
3142 | value -= elf_gp (input_section->output_section->owner); | |
3143 | break; | |
3144 | ||
3145 | default: | |
3146 | break; | |
3147 | } | |
3148 | ||
3149 | switch (r_type) | |
3150 | { | |
3151 | case R_PARISC_DIR32: | |
3152 | case R_PARISC_DIR17F: | |
3153 | case R_PARISC_PCREL17C: | |
3154 | case R_PARISC_PCREL14F: | |
3155 | case R_PARISC_DPREL14F: | |
3156 | case R_PARISC_PLABEL32: | |
3157 | case R_PARISC_DLTIND14F: | |
3158 | case R_PARISC_SEGBASE: | |
3159 | case R_PARISC_SEGREL32: | |
3160 | r_field = e_fsel; | |
3161 | break; | |
3162 | ||
3163 | case R_PARISC_DIR21L: | |
3164 | case R_PARISC_PCREL21L: | |
3165 | case R_PARISC_DPREL21L: | |
3166 | case R_PARISC_PLABEL21L: | |
3167 | case R_PARISC_DLTIND21L: | |
3168 | r_field = e_lrsel; | |
3169 | break; | |
3170 | ||
3171 | case R_PARISC_DIR17R: | |
3172 | case R_PARISC_PCREL17R: | |
3173 | case R_PARISC_DIR14R: | |
3174 | case R_PARISC_PCREL14R: | |
3175 | case R_PARISC_DPREL14R: | |
3176 | case R_PARISC_PLABEL14R: | |
3177 | case R_PARISC_DLTIND14R: | |
3178 | r_field = e_rrsel; | |
3179 | break; | |
3180 | ||
3181 | case R_PARISC_PCREL12F: | |
3182 | case R_PARISC_PCREL17F: | |
3183 | case R_PARISC_PCREL22F: | |
3184 | r_field = e_fsel; | |
3185 | ||
3186 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3187 | { | |
3188 | max_branch_offset = (1 << (17-1)) << 2; | |
3189 | } | |
3190 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3191 | { | |
3192 | max_branch_offset = (1 << (12-1)) << 2; | |
3193 | } | |
3194 | else | |
3195 | { | |
3196 | max_branch_offset = (1 << (22-1)) << 2; | |
3197 | } | |
3198 | ||
3199 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3200 | undefined syms. We've already checked for a stub for the | |
3201 | shared undefined case. */ | |
3202 | if (sym_sec == NULL) | |
3203 | break; | |
3204 | ||
3205 | /* If the branch is out of reach, then redirect the | |
3206 | call to the local stub for this function. */ | |
3207 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3208 | { | |
3209 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
3210 | h, rel, info); | |
3211 | if (stub_entry == NULL) | |
3212 | return bfd_reloc_notsupported; | |
3213 | ||
3214 | /* Munge up the value and addend so that we call the stub | |
3215 | rather than the procedure directly. */ | |
3216 | value = (stub_entry->stub_offset | |
3217 | + stub_entry->stub_sec->output_offset | |
3218 | + stub_entry->stub_sec->output_section->vma | |
3219 | - location); | |
3220 | addend = -8; | |
3221 | } | |
3222 | break; | |
3223 | ||
3224 | /* Something we don't know how to handle. */ | |
3225 | default: | |
3226 | return bfd_reloc_notsupported; | |
3227 | } | |
3228 | ||
3229 | /* Make sure we can reach the stub. */ | |
3230 | if (max_branch_offset != 0 | |
3231 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3232 | { | |
3233 | (*_bfd_error_handler) | |
3234 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), | |
3235 | bfd_get_filename (input_bfd), | |
3236 | input_section->name, | |
3237 | (long) rel->r_offset, | |
3238 | stub_entry->root.string); | |
3239 | return bfd_reloc_notsupported; | |
3240 | } | |
3241 | ||
3242 | val = hppa_field_adjust (value, addend, r_field); | |
3243 | ||
3244 | switch (r_type) | |
3245 | { | |
3246 | case R_PARISC_PCREL12F: | |
3247 | case R_PARISC_PCREL17C: | |
3248 | case R_PARISC_PCREL17F: | |
3249 | case R_PARISC_PCREL17R: | |
3250 | case R_PARISC_PCREL22F: | |
3251 | case R_PARISC_DIR17F: | |
3252 | case R_PARISC_DIR17R: | |
3253 | /* This is a branch. Divide the offset by four. | |
3254 | Note that we need to decide whether it's a branch or | |
3255 | otherwise by inspecting the reloc. Inspecting insn won't | |
3256 | work as insn might be from a .word directive. */ | |
3257 | val >>= 2; | |
3258 | break; | |
3259 | ||
3260 | default: | |
3261 | break; | |
3262 | } | |
3263 | ||
3264 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3265 | ||
3266 | /* Update the instruction word. */ | |
74d1c347 | 3267 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3268 | return bfd_reloc_ok; |
3269 | } | |
3270 | ||
3271 | ||
3272 | /* Relocate an HPPA ELF section. */ | |
3273 | ||
3274 | static boolean | |
3275 | elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section, | |
3276 | contents, relocs, local_syms, local_sections) | |
3277 | bfd *output_bfd; | |
3278 | struct bfd_link_info *info; | |
3279 | bfd *input_bfd; | |
3280 | asection *input_section; | |
3281 | bfd_byte *contents; | |
3282 | Elf_Internal_Rela *relocs; | |
3283 | Elf_Internal_Sym *local_syms; | |
3284 | asection **local_sections; | |
3285 | { | |
3286 | bfd *dynobj; | |
3287 | bfd_vma *local_got_offsets; | |
3288 | struct elf32_hppa_link_hash_table *hplink; | |
3289 | Elf_Internal_Shdr *symtab_hdr; | |
3290 | Elf_Internal_Rela *rel; | |
3291 | Elf_Internal_Rela *relend; | |
3292 | asection *sreloc; | |
3293 | ||
3294 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3295 | ||
30667bf3 | 3296 | hplink = hppa_link_hash_table (info); |
74d1c347 AM |
3297 | dynobj = hplink->root.dynobj; |
3298 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
30667bf3 AM |
3299 | sreloc = NULL; |
3300 | ||
3301 | rel = relocs; | |
3302 | relend = relocs + input_section->reloc_count; | |
3303 | for (; rel < relend; rel++) | |
3304 | { | |
3305 | unsigned int r_type; | |
3306 | reloc_howto_type *howto; | |
3307 | unsigned int r_symndx; | |
3308 | struct elf32_hppa_link_hash_entry *h; | |
3309 | Elf_Internal_Sym *sym; | |
3310 | asection *sym_sec; | |
3311 | bfd_vma relocation; | |
3312 | bfd_reloc_status_type r; | |
3313 | const char *sym_name; | |
74d1c347 | 3314 | boolean plabel; |
30667bf3 AM |
3315 | |
3316 | r_type = ELF32_R_TYPE (rel->r_info); | |
3317 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3318 | { | |
3319 | bfd_set_error (bfd_error_bad_value); | |
3320 | return false; | |
3321 | } | |
3322 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3323 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3324 | continue; | |
3325 | ||
3326 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3327 | ||
3328 | if (info->relocateable) | |
3329 | { | |
3330 | /* This is a relocateable link. We don't have to change | |
3331 | anything, unless the reloc is against a section symbol, | |
3332 | in which case we have to adjust according to where the | |
3333 | section symbol winds up in the output section. */ | |
3334 | if (r_symndx < symtab_hdr->sh_info) | |
3335 | { | |
3336 | sym = local_syms + r_symndx; | |
3337 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3338 | { | |
3339 | sym_sec = local_sections[r_symndx]; | |
3340 | rel->r_addend += sym_sec->output_offset; | |
3341 | } | |
3342 | } | |
3343 | continue; | |
3344 | } | |
3345 | ||
3346 | /* This is a final link. */ | |
3347 | h = NULL; | |
3348 | sym = NULL; | |
3349 | sym_sec = NULL; | |
3350 | if (r_symndx < symtab_hdr->sh_info) | |
3351 | { | |
3352 | /* This is a local symbol, h defaults to NULL. */ | |
3353 | sym = local_syms + r_symndx; | |
3354 | sym_sec = local_sections[r_symndx]; | |
3355 | relocation = ((ELF_ST_TYPE (sym->st_info) == STT_SECTION | |
3356 | ? 0 : sym->st_value) | |
3357 | + sym_sec->output_offset | |
3358 | + sym_sec->output_section->vma); | |
3359 | } | |
3360 | else | |
3361 | { | |
3362 | int indx; | |
3363 | ||
3364 | /* It's a global; Find its entry in the link hash. */ | |
3365 | indx = r_symndx - symtab_hdr->sh_info; | |
3366 | h = ((struct elf32_hppa_link_hash_entry *) | |
3367 | elf_sym_hashes (input_bfd)[indx]); | |
3368 | while (h->elf.root.type == bfd_link_hash_indirect | |
3369 | || h->elf.root.type == bfd_link_hash_warning) | |
3370 | h = (struct elf32_hppa_link_hash_entry *) h->elf.root.u.i.link; | |
3371 | ||
3372 | relocation = 0; | |
3373 | if (h->elf.root.type == bfd_link_hash_defined | |
3374 | || h->elf.root.type == bfd_link_hash_defweak) | |
3375 | { | |
3376 | sym_sec = h->elf.root.u.def.section; | |
3377 | /* If sym_sec->output_section is NULL, then it's a | |
3378 | symbol defined in a shared library. */ | |
3379 | if (sym_sec->output_section != NULL) | |
3380 | relocation = (h->elf.root.u.def.value | |
3381 | + sym_sec->output_offset | |
3382 | + sym_sec->output_section->vma); | |
3383 | } | |
3384 | else if (h->elf.root.type == bfd_link_hash_undefweak) | |
3385 | ; | |
3386 | else if (info->shared && !info->no_undefined | |
3387 | && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT) | |
3388 | { | |
3389 | if (info->symbolic) | |
3390 | if (!((*info->callbacks->undefined_symbol) | |
3391 | (info, h->elf.root.root.string, input_bfd, | |
3392 | input_section, rel->r_offset, false))) | |
3393 | return false; | |
3394 | } | |
3395 | else | |
3396 | { | |
3397 | if (!((*info->callbacks->undefined_symbol) | |
3398 | (info, h->elf.root.root.string, input_bfd, | |
3399 | input_section, rel->r_offset, true))) | |
3400 | return false; | |
3401 | } | |
3402 | } | |
3403 | ||
3404 | /* Do any required modifications to the relocation value, and | |
3405 | determine what types of dynamic info we need to output, if | |
3406 | any. */ | |
74d1c347 | 3407 | plabel = 0; |
30667bf3 AM |
3408 | switch (r_type) |
3409 | { | |
3410 | case R_PARISC_DLTIND14F: | |
3411 | case R_PARISC_DLTIND14R: | |
3412 | case R_PARISC_DLTIND21L: | |
3413 | /* Relocation is to the entry for this symbol in the global | |
3414 | offset table. */ | |
3415 | if (h != NULL) | |
3416 | { | |
3417 | bfd_vma off; | |
3418 | ||
3419 | off = h->elf.got.offset; | |
3420 | BFD_ASSERT (off != (bfd_vma) -1); | |
3421 | ||
74d1c347 | 3422 | if (! hplink->root.dynamic_sections_created |
30667bf3 AM |
3423 | || (info->shared |
3424 | && (info->symbolic || h->elf.dynindx == -1) | |
3425 | && (h->elf.elf_link_hash_flags | |
3426 | & ELF_LINK_HASH_DEF_REGULAR) != 0)) | |
3427 | { | |
3428 | /* This is actually a static link, or it is a | |
3429 | -Bsymbolic link and the symbol is defined | |
3430 | locally, or the symbol was forced to be local | |
3431 | because of a version file. We must initialize | |
3432 | this entry in the global offset table. Since the | |
3433 | offset must always be a multiple of 4, we use the | |
3434 | least significant bit to record whether we have | |
3435 | initialized it already. | |
3436 | ||
3437 | When doing a dynamic link, we create a .rela.got | |
3438 | relocation entry to initialize the value. This | |
3439 | is done in the finish_dynamic_symbol routine. */ | |
3440 | if ((off & 1) != 0) | |
3441 | off &= ~1; | |
3442 | else | |
3443 | { | |
3444 | bfd_put_32 (output_bfd, relocation, | |
3445 | hplink->sgot->contents + off); | |
3446 | h->elf.got.offset |= 1; | |
3447 | } | |
3448 | } | |
3449 | ||
3450 | relocation = off; | |
3451 | } | |
3452 | else | |
3453 | { | |
3454 | /* Local symbol case. */ | |
3455 | bfd_vma off; | |
3456 | ||
3457 | BFD_ASSERT (local_got_offsets != NULL | |
3458 | && local_got_offsets[r_symndx] != (bfd_vma) -1); | |
3459 | ||
3460 | off = local_got_offsets[r_symndx]; | |
3461 | ||
3462 | /* The offset must always be a multiple of 4. We use | |
3463 | the least significant bit to record whether we have | |
3464 | already generated the necessary reloc. */ | |
3465 | if ((off & 1) != 0) | |
3466 | off &= ~1; | |
3467 | else | |
3468 | { | |
3469 | bfd_put_32 (output_bfd, relocation, | |
3470 | hplink->sgot->contents + off); | |
3471 | ||
3472 | if (info->shared) | |
3473 | { | |
74d1c347 | 3474 | /* Output a dynamic *ABS* relocation for this |
30667bf3 AM |
3475 | GOT entry. In this case it is relative to |
3476 | the base of the object because the symbol | |
3477 | index is zero. */ | |
3478 | Elf_Internal_Rela outrel; | |
3479 | asection *srelgot = hplink->srelgot; | |
3480 | ||
3481 | outrel.r_offset = (off | |
3482 | + hplink->sgot->output_offset | |
3483 | + hplink->sgot->output_section->vma); | |
74d1c347 | 3484 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
3485 | outrel.r_addend = relocation; |
3486 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
3487 | ((Elf32_External_Rela *) | |
3488 | srelgot->contents | |
3489 | + srelgot->reloc_count)); | |
3490 | ++srelgot->reloc_count; | |
3491 | } | |
252b5132 | 3492 | |
30667bf3 AM |
3493 | local_got_offsets[r_symndx] |= 1; |
3494 | } | |
252b5132 | 3495 | |
30667bf3 AM |
3496 | relocation = off; |
3497 | } | |
252b5132 | 3498 | |
30667bf3 AM |
3499 | /* Add the base of the GOT to the relocation value. */ |
3500 | relocation += (hplink->sgot->output_offset | |
3501 | + hplink->sgot->output_section->vma); | |
3502 | break; | |
252b5132 | 3503 | |
30667bf3 AM |
3504 | case R_PARISC_PLABEL14R: |
3505 | case R_PARISC_PLABEL21L: | |
3506 | case R_PARISC_PLABEL32: | |
74d1c347 | 3507 | if (hplink->root.dynamic_sections_created) |
252b5132 | 3508 | { |
74d1c347 AM |
3509 | bfd_vma off; |
3510 | ||
3511 | /* If we have a global symbol with a PLT slot, then | |
3512 | redirect this relocation to it. */ | |
3513 | if (h != NULL) | |
3514 | { | |
3515 | off = h->elf.plt.offset; | |
3516 | } | |
3517 | else | |
3518 | { | |
3519 | int indx; | |
3520 | ||
3521 | indx = r_symndx + symtab_hdr->sh_info; | |
3522 | off = local_got_offsets[indx]; | |
3523 | ||
3524 | /* As for the local .got entry case, we use the last | |
3525 | bit to record whether we've already initialised | |
3526 | this local .plt entry. */ | |
3527 | if ((off & 1) != 0) | |
3528 | off &= ~1; | |
3529 | else | |
3530 | { | |
3531 | bfd_put_32 (output_bfd, | |
3532 | relocation, | |
3533 | hplink->splt->contents + off); | |
3534 | bfd_put_32 (output_bfd, | |
3535 | elf_gp (hplink->splt->output_section->owner), | |
3536 | hplink->splt->contents + off + 4); | |
3537 | ||
3538 | if (info->shared) | |
3539 | { | |
3540 | /* Output a dynamic IPLT relocation for this | |
3541 | PLT entry. */ | |
3542 | Elf_Internal_Rela outrel; | |
3543 | asection *srelplt = hplink->srelplt; | |
3544 | ||
3545 | outrel.r_offset = (off | |
3546 | + hplink->splt->output_offset | |
3547 | + hplink->splt->output_section->vma); | |
3548 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3549 | outrel.r_addend = relocation; | |
3550 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
3551 | ((Elf32_External_Rela *) | |
3552 | srelplt->contents | |
3553 | + srelplt->reloc_count)); | |
3554 | ++srelplt->reloc_count; | |
3555 | } | |
3556 | ||
3557 | local_got_offsets[indx] |= 1; | |
3558 | } | |
3559 | } | |
3560 | ||
3561 | BFD_ASSERT (off < (bfd_vma) -2); | |
3562 | ||
3563 | /* PLABELs contain function pointers. Relocation is to | |
3564 | the entry for the function in the .plt. The magic +2 | |
3565 | offset signals to $$dyncall that the function pointer | |
3566 | is in the .plt and thus has a gp pointer too. | |
3567 | Exception: Undefined PLABELs should have a value of | |
3568 | zero. */ | |
3569 | if (h == NULL | |
3570 | || (h->elf.root.type != bfd_link_hash_undefweak | |
3571 | && h->elf.root.type != bfd_link_hash_undefined)) | |
3572 | { | |
3573 | relocation = (off | |
3574 | + hplink->splt->output_offset | |
3575 | + hplink->splt->output_section->vma | |
3576 | + 2); | |
3577 | } | |
3578 | plabel = 1; | |
30667bf3 AM |
3579 | } |
3580 | /* Fall through and possibly emit a dynamic relocation. */ | |
3581 | ||
3582 | case R_PARISC_DIR17F: | |
3583 | case R_PARISC_DIR17R: | |
3584 | case R_PARISC_DIR14R: | |
3585 | case R_PARISC_DIR21L: | |
3586 | case R_PARISC_DPREL14F: | |
3587 | case R_PARISC_DPREL14R: | |
3588 | case R_PARISC_DPREL21L: | |
3589 | case R_PARISC_DIR32: | |
3590 | /* The reloc types handled here and this conditional | |
3591 | expression must match the code in check_relocs and | |
3592 | hppa_discard_copies. ie. We need exactly the same | |
3593 | condition as in check_relocs, with some extra conditions | |
3594 | (dynindx test in this case) to cater for relocs removed | |
3595 | by hppa_discard_copies. */ | |
3596 | if ((input_section->flags & SEC_ALLOC) != 0 | |
3597 | && info->shared | |
3598 | #if RELATIVE_DYNAMIC_RELOCS | |
3599 | && (is_absolute_reloc (r_type) | |
3600 | || ((!info->symbolic | |
3601 | || (h != NULL | |
3602 | && ((h->elf.elf_link_hash_flags | |
3603 | & ELF_LINK_HASH_DEF_REGULAR) == 0 | |
3604 | || h->elf.root.type == bfd_link_hash_defweak))) | |
3605 | && (h == NULL || h->elf.dynindx != -1))) | |
3606 | #endif | |
3607 | ) | |
3608 | { | |
3609 | Elf_Internal_Rela outrel; | |
3610 | boolean skip; | |
252b5132 | 3611 | |
30667bf3 AM |
3612 | /* When generating a shared object, these relocations |
3613 | are copied into the output file to be resolved at run | |
3614 | time. */ | |
252b5132 | 3615 | |
30667bf3 | 3616 | if (sreloc == NULL) |
edd21aca | 3617 | { |
30667bf3 AM |
3618 | const char *name; |
3619 | ||
3620 | name = (bfd_elf_string_from_elf_section | |
3621 | (input_bfd, | |
3622 | elf_elfheader (input_bfd)->e_shstrndx, | |
3623 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
3624 | if (name == NULL) | |
3625 | return false; | |
3626 | sreloc = bfd_get_section_by_name (dynobj, name); | |
3627 | BFD_ASSERT (sreloc != NULL); | |
edd21aca | 3628 | } |
252b5132 | 3629 | |
30667bf3 AM |
3630 | outrel.r_offset = rel->r_offset; |
3631 | outrel.r_addend = rel->r_addend; | |
3632 | skip = false; | |
3633 | if (elf_section_data (input_section)->stab_info != NULL) | |
edd21aca | 3634 | { |
30667bf3 AM |
3635 | bfd_vma off; |
3636 | ||
3637 | off = (_bfd_stab_section_offset | |
74d1c347 | 3638 | (output_bfd, &hplink->root.stab_info, |
30667bf3 AM |
3639 | input_section, |
3640 | &elf_section_data (input_section)->stab_info, | |
3641 | rel->r_offset)); | |
3642 | if (off == (bfd_vma) -1) | |
3643 | skip = true; | |
3644 | outrel.r_offset = off; | |
edd21aca | 3645 | } |
252b5132 | 3646 | |
30667bf3 AM |
3647 | outrel.r_offset += (input_section->output_offset |
3648 | + input_section->output_section->vma); | |
3649 | ||
3650 | if (skip) | |
252b5132 | 3651 | { |
30667bf3 | 3652 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 3653 | } |
74d1c347 AM |
3654 | else if (h != NULL |
3655 | && h->elf.dynindx != -1 | |
3656 | && (plabel | |
3657 | || !info->symbolic | |
30667bf3 AM |
3658 | || (h->elf.elf_link_hash_flags |
3659 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
252b5132 | 3660 | { |
30667bf3 AM |
3661 | outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type); |
3662 | } | |
3663 | else /* It's a local symbol, or one marked to become local. */ | |
3664 | { | |
3665 | int indx = 0; | |
edd21aca | 3666 | |
30667bf3 AM |
3667 | /* Add the absolute offset of the symbol. */ |
3668 | outrel.r_addend += relocation; | |
edd21aca | 3669 | |
74d1c347 AM |
3670 | /* Global plabels need to be processed by the |
3671 | dynamic linker so that functions have at most one | |
3672 | fptr. For this reason, we need to differentiate | |
3673 | between global and local plabels, which we do by | |
3674 | providing the function symbol for a global plabel | |
3675 | reloc, and no symbol for local plabels. */ | |
3676 | if (! plabel | |
3677 | && sym_sec != NULL | |
30667bf3 AM |
3678 | && sym_sec->output_section != NULL |
3679 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 3680 | { |
30667bf3 AM |
3681 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
3682 | /* We are turning this relocation into one | |
3683 | against a section symbol, so subtract out the | |
3684 | output section's address but not the offset | |
3685 | of the input section in the output section. */ | |
3686 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 3687 | } |
252b5132 | 3688 | |
30667bf3 AM |
3689 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
3690 | } | |
edd21aca | 3691 | |
30667bf3 AM |
3692 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, |
3693 | ((Elf32_External_Rela *) | |
3694 | sreloc->contents | |
3695 | + sreloc->reloc_count)); | |
3696 | ++sreloc->reloc_count; | |
3697 | } | |
3698 | break; | |
edd21aca | 3699 | |
30667bf3 AM |
3700 | default: |
3701 | break; | |
3702 | } | |
252b5132 | 3703 | |
30667bf3 AM |
3704 | r = final_link_relocate (input_section, contents, rel, relocation, |
3705 | info, sym_sec, h); | |
252b5132 | 3706 | |
30667bf3 AM |
3707 | if (r == bfd_reloc_ok) |
3708 | continue; | |
252b5132 | 3709 | |
30667bf3 AM |
3710 | if (h != NULL) |
3711 | sym_name = h->elf.root.root.string; | |
3712 | else | |
3713 | { | |
3714 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
3715 | symtab_hdr->sh_link, | |
3716 | sym->st_name); | |
3717 | if (sym_name == NULL) | |
3718 | return false; | |
3719 | if (*sym_name == '\0') | |
3720 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
3721 | } | |
edd21aca | 3722 | |
30667bf3 | 3723 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 3724 | |
30667bf3 AM |
3725 | if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported) |
3726 | { | |
3727 | (*_bfd_error_handler) | |
3728 | (_("%s(%s+0x%lx): cannot handle %s for %s"), | |
3729 | bfd_get_filename (input_bfd), | |
3730 | input_section->name, | |
3731 | (long) rel->r_offset, | |
3732 | howto->name, | |
3733 | sym_name); | |
3734 | } | |
3735 | else | |
3736 | { | |
3737 | if (!((*info->callbacks->reloc_overflow) | |
3738 | (info, sym_name, howto->name, (bfd_vma) 0, | |
3739 | input_bfd, input_section, rel->r_offset))) | |
3740 | return false; | |
3741 | } | |
3742 | } | |
edd21aca | 3743 | |
30667bf3 AM |
3744 | return true; |
3745 | } | |
252b5132 | 3746 | |
edd21aca | 3747 | |
30667bf3 AM |
3748 | /* Finish up dynamic symbol handling. We set the contents of various |
3749 | dynamic sections here. */ | |
252b5132 | 3750 | |
30667bf3 AM |
3751 | static boolean |
3752 | elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym) | |
3753 | bfd *output_bfd; | |
3754 | struct bfd_link_info *info; | |
3755 | struct elf_link_hash_entry *h; | |
3756 | Elf_Internal_Sym *sym; | |
3757 | { | |
3758 | struct elf32_hppa_link_hash_table *hplink; | |
3759 | bfd *dynobj; | |
edd21aca | 3760 | |
30667bf3 | 3761 | hplink = hppa_link_hash_table (info); |
74d1c347 | 3762 | dynobj = hplink->root.dynobj; |
30667bf3 | 3763 | |
30667bf3 AM |
3764 | if (h->plt.offset != (bfd_vma) -1) |
3765 | { | |
3766 | bfd_vma value; | |
3767 | Elf_Internal_Rela rel; | |
3768 | ||
3769 | /* This symbol has an entry in the procedure linkage table. Set | |
3770 | it up. | |
3771 | ||
3772 | The format of a plt entry is | |
74d1c347 AM |
3773 | <funcaddr> |
3774 | <__gp> | |
3775 | <used by ld.so> | |
3776 | ||
3777 | The last field is present only for plt entries that are used | |
3778 | by global plabels. */ | |
30667bf3 AM |
3779 | |
3780 | /* We do not actually care about the value in the PLT entry if | |
3781 | we are creating a shared library and the symbol is still | |
3782 | undefined; We create a dynamic relocation to fill in the | |
3783 | correct value. */ | |
3784 | value = 0; | |
3785 | if (h->root.type == bfd_link_hash_defined | |
3786 | || h->root.type == bfd_link_hash_defweak) | |
3787 | { | |
3788 | value = h->root.u.def.value; | |
3789 | if (h->root.u.def.section->output_section != NULL) | |
3790 | value += (h->root.u.def.section->output_offset | |
3791 | + h->root.u.def.section->output_section->vma); | |
252b5132 | 3792 | } |
edd21aca | 3793 | |
74d1c347 AM |
3794 | bfd_put_32 (hplink->splt->owner, |
3795 | value, | |
30667bf3 | 3796 | hplink->splt->contents + h->plt.offset); |
74d1c347 AM |
3797 | bfd_put_32 (hplink->splt->owner, |
3798 | elf_gp (hplink->splt->output_section->owner), | |
30667bf3 | 3799 | hplink->splt->contents + h->plt.offset + 4); |
74d1c347 AM |
3800 | if (PLABEL_PLT_ENTRY_SIZE != PLT_ENTRY_SIZE |
3801 | && ((struct elf32_hppa_link_hash_entry *) h)->plabel | |
30667bf3 | 3802 | && h->dynindx != -1) |
74d1c347 AM |
3803 | { |
3804 | memset (hplink->splt->contents + h->plt.offset + 8, | |
3805 | 0, PLABEL_PLT_ENTRY_SIZE - PLT_ENTRY_SIZE); | |
3806 | } | |
3807 | ||
3808 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
30667bf3 AM |
3809 | { |
3810 | /* Create a dynamic IPLT relocation for this entry. */ | |
3811 | rel.r_offset = (h->plt.offset | |
3812 | + hplink->splt->output_offset | |
3813 | + hplink->splt->output_section->vma); | |
74d1c347 AM |
3814 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plt_abs |
3815 | && h->dynindx != -1) | |
3816 | { | |
3817 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT); | |
3818 | rel.r_addend = 0; | |
3819 | } | |
3820 | else | |
3821 | { | |
3822 | /* This symbol has been marked to become local, and is | |
3823 | used by a plabel so must be kept in the .plt. */ | |
3824 | rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3825 | rel.r_addend = value; | |
3826 | } | |
30667bf3 AM |
3827 | |
3828 | bfd_elf32_swap_reloca_out (hplink->splt->output_section->owner, | |
3829 | &rel, | |
3830 | ((Elf32_External_Rela *) | |
3831 | hplink->srelplt->contents | |
3832 | + hplink->srelplt->reloc_count)); | |
3833 | hplink->srelplt->reloc_count++; | |
3834 | } | |
3835 | ||
3836 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
3837 | { | |
3838 | /* Mark the symbol as undefined, rather than as defined in | |
3839 | the .plt section. Leave the value alone. */ | |
3840 | sym->st_shndx = SHN_UNDEF; | |
3841 | } | |
3842 | } | |
edd21aca | 3843 | |
30667bf3 AM |
3844 | if (h->got.offset != (bfd_vma) -1) |
3845 | { | |
3846 | Elf_Internal_Rela rel; | |
3847 | ||
3848 | /* This symbol has an entry in the global offset table. Set it | |
3849 | up. */ | |
3850 | ||
3851 | rel.r_offset = ((h->got.offset &~ (bfd_vma) 1) | |
3852 | + hplink->sgot->output_offset | |
3853 | + hplink->sgot->output_section->vma); | |
3854 | ||
3855 | /* If this is a static link, or it is a -Bsymbolic link and the | |
3856 | symbol is defined locally or was forced to be local because | |
3857 | of a version file, we just want to emit a RELATIVE reloc. | |
3858 | The entry in the global offset table will already have been | |
3859 | initialized in the relocate_section function. */ | |
74d1c347 | 3860 | if (! hplink->root.dynamic_sections_created |
30667bf3 AM |
3861 | || (info->shared |
3862 | && (info->symbolic || h->dynindx == -1) | |
3863 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR))) | |
3864 | { | |
74d1c347 | 3865 | rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
3866 | rel.r_addend = (h->root.u.def.value |
3867 | + h->root.u.def.section->output_offset | |
3868 | + h->root.u.def.section->output_section->vma); | |
3869 | } | |
3870 | else | |
3871 | { | |
3872 | BFD_ASSERT((h->got.offset & 1) == 0); | |
3873 | bfd_put_32 (output_bfd, (bfd_vma) 0, | |
3874 | hplink->sgot->contents + h->got.offset); | |
3875 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32); | |
3876 | rel.r_addend = 0; | |
3877 | } | |
edd21aca | 3878 | |
30667bf3 AM |
3879 | bfd_elf32_swap_reloca_out (output_bfd, &rel, |
3880 | ((Elf32_External_Rela *) | |
3881 | hplink->srelgot->contents | |
3882 | + hplink->srelgot->reloc_count)); | |
3883 | ++hplink->srelgot->reloc_count; | |
3884 | } | |
edd21aca | 3885 | |
30667bf3 AM |
3886 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
3887 | { | |
3888 | asection *s; | |
3889 | Elf_Internal_Rela rel; | |
3890 | ||
3891 | /* This symbol needs a copy reloc. Set it up. */ | |
3892 | ||
3893 | BFD_ASSERT (h->dynindx != -1 | |
3894 | && (h->root.type == bfd_link_hash_defined | |
3895 | || h->root.type == bfd_link_hash_defweak)); | |
3896 | ||
3897 | s = hplink->srelbss; | |
3898 | ||
3899 | rel.r_offset = (h->root.u.def.value | |
3900 | + h->root.u.def.section->output_offset | |
3901 | + h->root.u.def.section->output_section->vma); | |
3902 | rel.r_addend = 0; | |
3903 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY); | |
3904 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
3905 | ((Elf32_External_Rela *) s->contents | |
3906 | + s->reloc_count)); | |
3907 | ++s->reloc_count; | |
3908 | } | |
3909 | ||
3910 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
3911 | if (h->root.root.string[0] == '_' | |
3912 | && (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
3913 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)) | |
3914 | { | |
3915 | sym->st_shndx = SHN_ABS; | |
3916 | } | |
3917 | ||
3918 | return true; | |
3919 | } | |
3920 | ||
3921 | ||
3922 | /* Finish up the dynamic sections. */ | |
3923 | ||
3924 | static boolean | |
3925 | elf32_hppa_finish_dynamic_sections (output_bfd, info) | |
3926 | bfd *output_bfd; | |
3927 | struct bfd_link_info *info; | |
3928 | { | |
3929 | bfd *dynobj; | |
3930 | struct elf32_hppa_link_hash_table *hplink; | |
3931 | asection *sdyn; | |
3932 | ||
30667bf3 | 3933 | hplink = hppa_link_hash_table (info); |
74d1c347 | 3934 | dynobj = hplink->root.dynobj; |
30667bf3 AM |
3935 | |
3936 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
3937 | ||
74d1c347 | 3938 | if (hplink->root.dynamic_sections_created) |
30667bf3 AM |
3939 | { |
3940 | Elf32_External_Dyn *dyncon, *dynconend; | |
3941 | ||
3942 | BFD_ASSERT (sdyn != NULL); | |
3943 | ||
3944 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
3945 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
3946 | for (; dyncon < dynconend; dyncon++) | |
edd21aca | 3947 | { |
30667bf3 AM |
3948 | Elf_Internal_Dyn dyn; |
3949 | asection *s; | |
3950 | ||
3951 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
3952 | ||
3953 | switch (dyn.d_tag) | |
3954 | { | |
3955 | default: | |
3956 | break; | |
3957 | ||
3958 | case DT_PLTGOT: | |
3959 | /* Use PLTGOT to set the GOT register. */ | |
3960 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
3961 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3962 | break; | |
3963 | ||
3964 | case DT_JMPREL: | |
3965 | s = hplink->srelplt; | |
3966 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
3967 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3968 | break; | |
3969 | ||
3970 | case DT_PLTRELSZ: | |
3971 | s = hplink->srelplt; | |
3972 | if (s->_cooked_size != 0) | |
3973 | dyn.d_un.d_val = s->_cooked_size; | |
3974 | else | |
3975 | dyn.d_un.d_val = s->_raw_size; | |
3976 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
3977 | break; | |
74d1c347 AM |
3978 | |
3979 | case DT_INIT: | |
3980 | case DT_FINI: | |
3981 | { | |
3982 | struct elf_link_hash_entry *h; | |
3983 | const char *funcname; | |
3984 | ||
3985 | if (dyn.d_tag == DT_INIT) | |
3986 | funcname = info->init_function; | |
3987 | else | |
3988 | funcname = info->fini_function; | |
3989 | ||
3990 | h = elf_link_hash_lookup (&hplink->root, funcname, | |
3991 | false, false, false); | |
3992 | ||
3993 | /* This is a function pointer. The magic +2 offset | |
3994 | signals to $$dyncall that the function pointer | |
3995 | is in the .plt and thus has a gp pointer too. */ | |
3996 | dyn.d_un.d_ptr = (h->plt.offset | |
3997 | + hplink->splt->output_offset | |
3998 | + hplink->splt->output_section->vma | |
3999 | + 2); | |
4000 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
4001 | break; | |
4002 | } | |
30667bf3 | 4003 | } |
edd21aca | 4004 | } |
252b5132 | 4005 | } |
edd21aca | 4006 | |
30667bf3 AM |
4007 | if (hplink->sgot->_raw_size != 0) |
4008 | { | |
74d1c347 AM |
4009 | /* Fill in the first entry in the global offset table. |
4010 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 AM |
4011 | bfd_put_32 (output_bfd, |
4012 | (sdyn != NULL | |
4013 | ? sdyn->output_section->vma + sdyn->output_offset | |
4014 | : (bfd_vma) 0), | |
4015 | hplink->sgot->contents); | |
4016 | ||
74d1c347 AM |
4017 | /* The second entry is reserved for use by the dynamic linker. */ |
4018 | bfd_put_32 (output_bfd, (bfd_vma) 0, hplink->sgot->contents + 4); | |
4019 | ||
30667bf3 | 4020 | /* Set .got entry size. */ |
74d1c347 AM |
4021 | elf_section_data (hplink->sgot->output_section) |
4022 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; | |
30667bf3 AM |
4023 | } |
4024 | ||
4025 | /* Set plt entry size. */ | |
4026 | if (hplink->splt->_raw_size != 0) | |
74d1c347 AM |
4027 | elf_section_data (hplink->splt->output_section) |
4028 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; | |
30667bf3 | 4029 | |
252b5132 | 4030 | return true; |
30667bf3 | 4031 | } |
252b5132 | 4032 | |
edd21aca | 4033 | |
30667bf3 AM |
4034 | /* Called when writing out an object file to decide the type of a |
4035 | symbol. */ | |
4036 | static int | |
4037 | elf32_hppa_elf_get_symbol_type (elf_sym, type) | |
4038 | Elf_Internal_Sym *elf_sym; | |
4039 | int type; | |
4040 | { | |
4041 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4042 | return STT_PARISC_MILLI; | |
4043 | else | |
4044 | return type; | |
252b5132 RH |
4045 | } |
4046 | ||
30667bf3 | 4047 | |
252b5132 | 4048 | /* Misc BFD support code. */ |
30667bf3 AM |
4049 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4050 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4051 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4052 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4053 | |
252b5132 | 4054 | /* Stuff for the BFD linker. */ |
30667bf3 AM |
4055 | #define bfd_elf32_bfd_final_link _bfd_elf32_gc_common_final_link |
4056 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create | |
4057 | #define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook | |
4058 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol | |
4059 | #define elf_backend_check_relocs elf32_hppa_check_relocs | |
4060 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4061 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4062 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4063 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4064 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4065 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4066 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4067 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4068 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
4069 | #define elf_backend_object_p elf32_hppa_object_p | |
4070 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
4071 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type | |
4072 | ||
4073 | #define elf_backend_can_gc_sections 1 | |
4074 | #define elf_backend_plt_alignment 2 | |
4075 | #define elf_backend_want_got_plt 0 | |
4076 | #define elf_backend_plt_readonly 0 | |
4077 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4078 | #define elf_backend_got_header_size 8 |
252b5132 RH |
4079 | |
4080 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4081 | #define TARGET_BIG_NAME "elf32-hppa" | |
4082 | #define ELF_ARCH bfd_arch_hppa | |
4083 | #define ELF_MACHINE_CODE EM_PARISC | |
4084 | #define ELF_MAXPAGESIZE 0x1000 | |
4085 | ||
4086 | #include "elf32-target.h" |