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252b5132 | 1 | /* BFD back-end for HP PA-RISC ELF files. |
7898deda | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001 |
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 | |
74d1c347 AM |
38 | /* In order to gain some understanding of code in this file without |
39 | knowing all the intricate details of the linker, note the | |
40 | following: | |
41 | ||
42 | Functions named elf32_hppa_* are called by external routines, other | |
43 | functions are only called locally. elf32_hppa_* functions appear | |
44 | in this file more or less in the order in which they are called | |
45 | from external routines. eg. elf32_hppa_check_relocs is called | |
46 | early in the link process, elf32_hppa_finish_dynamic_sections is | |
47 | one of the last functions. */ | |
48 | ||
edd21aca | 49 | /* We use two hash tables to hold information for linking PA ELF objects. |
252b5132 RH |
50 | |
51 | The first is the elf32_hppa_link_hash_table which is derived | |
52 | from the standard ELF linker hash table. We use this as a place to | |
53 | attach other hash tables and static information. | |
54 | ||
55 | The second is the stub hash table which is derived from the | |
56 | base BFD hash table. The stub hash table holds the information | |
30667bf3 AM |
57 | necessary to build the linker stubs during a link. |
58 | ||
59 | There are a number of different stubs generated by the linker. | |
60 | ||
61 | Long branch stub: | |
62 | : ldil LR'X,%r1 | |
63 | : be,n RR'X(%sr4,%r1) | |
64 | ||
65 | PIC long branch stub: | |
66 | : b,l .+8,%r1 | |
3ee1d854 AM |
67 | : addil LR'X - ($PIC_pcrel$0 - 4),%r1 |
68 | : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1) | |
30667bf3 AM |
69 | |
70 | Import stub to call shared library routine from normal object file | |
71 | (single sub-space version) | |
3ee1d854 AM |
72 | : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point |
73 | : ldw RR'lt_ptr+ltoff(%r1),%r21 | |
30667bf3 | 74 | : bv %r0(%r21) |
3ee1d854 | 75 | : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. |
30667bf3 AM |
76 | |
77 | Import stub to call shared library routine from shared library | |
78 | (single sub-space version) | |
3ee1d854 AM |
79 | : addil LR'ltoff,%r19 ; get procedure entry point |
80 | : ldw RR'ltoff(%r1),%r21 | |
30667bf3 | 81 | : bv %r0(%r21) |
3ee1d854 | 82 | : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. |
30667bf3 AM |
83 | |
84 | Import stub to call shared library routine from normal object file | |
85 | (multiple sub-space support) | |
3ee1d854 AM |
86 | : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point |
87 | : ldw RR'lt_ptr+ltoff(%r1),%r21 | |
88 | : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. | |
30667bf3 AM |
89 | : ldsid (%r21),%r1 |
90 | : mtsp %r1,%sr0 | |
91 | : be 0(%sr0,%r21) ; branch to target | |
92 | : stw %rp,-24(%sp) ; save rp | |
93 | ||
94 | Import stub to call shared library routine from shared library | |
95 | (multiple sub-space support) | |
3ee1d854 AM |
96 | : addil LR'ltoff,%r19 ; get procedure entry point |
97 | : ldw RR'ltoff(%r1),%r21 | |
98 | : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. | |
30667bf3 AM |
99 | : ldsid (%r21),%r1 |
100 | : mtsp %r1,%sr0 | |
101 | : be 0(%sr0,%r21) ; branch to target | |
102 | : stw %rp,-24(%sp) ; save rp | |
103 | ||
104 | Export stub to return from shared lib routine (multiple sub-space support) | |
105 | One of these is created for each exported procedure in a shared | |
106 | library (and stored in the shared lib). Shared lib routines are | |
107 | called via the first instruction in the export stub so that we can | |
108 | do an inter-space return. Not required for single sub-space. | |
109 | : bl,n X,%rp ; trap the return | |
110 | : nop | |
111 | : ldw -24(%sp),%rp ; restore the original rp | |
112 | : ldsid (%rp),%r1 | |
113 | : mtsp %r1,%sr0 | |
74d1c347 | 114 | : be,n 0(%sr0,%rp) ; inter-space return */ |
30667bf3 AM |
115 | |
116 | #define PLT_ENTRY_SIZE 8 | |
74d1c347 | 117 | #define PLABEL_PLT_ENTRY_SIZE PLT_ENTRY_SIZE |
30667bf3 AM |
118 | #define GOT_ENTRY_SIZE 4 |
119 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
120 | ||
47d89dba AM |
121 | static const bfd_byte plt_stub[] = |
122 | { | |
123 | 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */ | |
124 | 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */ | |
125 | 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */ | |
126 | #define PLT_STUB_ENTRY (3*4) | |
127 | 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */ | |
128 | 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */ | |
129 | 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */ | |
130 | 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */ | |
131 | }; | |
132 | ||
30667bf3 AM |
133 | /* Section name for stubs is the associated section name plus this |
134 | string. */ | |
135 | #define STUB_SUFFIX ".stub" | |
136 | ||
98ceb8ce AM |
137 | /* We don't need to copy certain PC- or GP-relative dynamic relocs |
138 | into a shared object's dynamic section. All the relocs of the | |
139 | limited class we are interested in, are absolute. */ | |
140 | #ifndef RELATIVE_DYNRELOCS | |
141 | #define RELATIVE_DYNRELOCS 0 | |
446f2863 | 142 | #define IS_ABSOLUTE_RELOC(r_type) 1 |
30667bf3 AM |
143 | #endif |
144 | ||
30667bf3 AM |
145 | enum elf32_hppa_stub_type { |
146 | hppa_stub_long_branch, | |
147 | hppa_stub_long_branch_shared, | |
148 | hppa_stub_import, | |
149 | hppa_stub_import_shared, | |
150 | hppa_stub_export, | |
151 | hppa_stub_none | |
152 | }; | |
153 | ||
30667bf3 | 154 | struct elf32_hppa_stub_hash_entry { |
252b5132 | 155 | |
edd21aca | 156 | /* Base hash table entry structure. */ |
252b5132 RH |
157 | struct bfd_hash_entry root; |
158 | ||
edd21aca AM |
159 | /* The stub section. */ |
160 | asection *stub_sec; | |
161 | ||
162 | /* Offset within stub_sec of the beginning of this stub. */ | |
30667bf3 | 163 | bfd_vma stub_offset; |
252b5132 RH |
164 | |
165 | /* Given the symbol's value and its section we can determine its final | |
166 | value when building the stubs (so the stub knows where to jump. */ | |
30667bf3 | 167 | bfd_vma target_value; |
252b5132 | 168 | asection *target_section; |
30667bf3 AM |
169 | |
170 | enum elf32_hppa_stub_type stub_type; | |
171 | ||
172 | /* The symbol table entry, if any, that this was derived from. */ | |
173 | struct elf32_hppa_link_hash_entry *h; | |
174 | ||
25f72752 AM |
175 | /* Where this stub is being called from, or, in the case of combined |
176 | stub sections, the first input section in the group. */ | |
177 | asection *id_sec; | |
252b5132 RH |
178 | }; |
179 | ||
30667bf3 AM |
180 | struct elf32_hppa_link_hash_entry { |
181 | ||
182 | struct elf_link_hash_entry elf; | |
183 | ||
184 | /* A pointer to the most recently used stub hash entry against this | |
185 | symbol. */ | |
186 | struct elf32_hppa_stub_hash_entry *stub_cache; | |
187 | ||
30667bf3 AM |
188 | /* Used to count relocations for delayed sizing of relocation |
189 | sections. */ | |
190 | struct elf32_hppa_dyn_reloc_entry { | |
191 | ||
192 | /* Next relocation in the chain. */ | |
193 | struct elf32_hppa_dyn_reloc_entry *next; | |
194 | ||
98ceb8ce AM |
195 | /* The input section of the reloc. */ |
196 | asection *sec; | |
30667bf3 AM |
197 | |
198 | /* Number of relocs copied in this section. */ | |
199 | bfd_size_type count; | |
98ceb8ce AM |
200 | |
201 | #if RELATIVE_DYNRELOCS | |
202 | /* Number of relative relocs copied for the input section. */ | |
203 | bfd_size_type relative_count; | |
204 | #endif | |
205 | } *dyn_relocs; | |
30667bf3 AM |
206 | |
207 | /* Set during a static link if we detect a function is PIC. */ | |
12cca0d2 AM |
208 | unsigned int maybe_pic_call:1; |
209 | ||
210 | /* Set if the only reason we need a .plt entry is for a non-PIC to | |
211 | PIC function call. */ | |
74d1c347 AM |
212 | unsigned int pic_call:1; |
213 | ||
214 | /* Set if this symbol is used by a plabel reloc. */ | |
215 | unsigned int plabel:1; | |
216 | ||
217 | /* Set if this symbol is an init or fini function and thus should | |
218 | use an absolute reloc. */ | |
219 | unsigned int plt_abs:1; | |
30667bf3 AM |
220 | }; |
221 | ||
30667bf3 AM |
222 | struct elf32_hppa_link_hash_table { |
223 | ||
252b5132 RH |
224 | /* The main hash table. */ |
225 | struct elf_link_hash_table root; | |
226 | ||
227 | /* The stub hash table. */ | |
edd21aca | 228 | struct bfd_hash_table stub_hash_table; |
252b5132 | 229 | |
30667bf3 AM |
230 | /* Linker stub bfd. */ |
231 | bfd *stub_bfd; | |
232 | ||
30667bf3 AM |
233 | /* Linker call-backs. */ |
234 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
235 | void (*layout_sections_again) PARAMS ((void)); | |
236 | ||
25f72752 AM |
237 | /* Array to keep track of which stub sections have been created, and |
238 | information on stub grouping. */ | |
239 | struct map_stub { | |
240 | /* This is the section to which stubs in the group will be | |
241 | attached. */ | |
242 | asection *link_sec; | |
243 | /* The stub section. */ | |
244 | asection *stub_sec; | |
25f72752 | 245 | } *stub_group; |
30667bf3 | 246 | |
30667bf3 AM |
247 | /* Short-cuts to get to dynamic linker sections. */ |
248 | asection *sgot; | |
249 | asection *srelgot; | |
250 | asection *splt; | |
251 | asection *srelplt; | |
252 | asection *sdynbss; | |
253 | asection *srelbss; | |
47d89dba | 254 | |
c46b7515 AM |
255 | /* Used during a final link to store the base of the text and data |
256 | segments so that we can perform SEGREL relocations. */ | |
257 | bfd_vma text_segment_base; | |
258 | bfd_vma data_segment_base; | |
259 | ||
47d89dba AM |
260 | /* Whether we support multiple sub-spaces for shared libs. */ |
261 | unsigned int multi_subspace:1; | |
262 | ||
263 | /* Flags set when PCREL12F and PCREL17F branches detected. Used to | |
264 | select suitable defaults for the stub group size. */ | |
265 | unsigned int has_12bit_branch:1; | |
266 | unsigned int has_17bit_branch:1; | |
267 | ||
268 | /* Set if we need a .plt stub to support lazy dynamic linking. */ | |
269 | unsigned int need_plt_stub:1; | |
252b5132 RH |
270 | }; |
271 | ||
30667bf3 AM |
272 | /* Various hash macros and functions. */ |
273 | #define hppa_link_hash_table(p) \ | |
edd21aca | 274 | ((struct elf32_hppa_link_hash_table *) ((p)->hash)) |
252b5132 | 275 | |
30667bf3 AM |
276 | #define hppa_stub_hash_lookup(table, string, create, copy) \ |
277 | ((struct elf32_hppa_stub_hash_entry *) \ | |
278 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
279 | ||
280 | static struct bfd_hash_entry *stub_hash_newfunc | |
281 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
edd21aca | 282 | |
30667bf3 | 283 | static struct bfd_hash_entry *hppa_link_hash_newfunc |
edd21aca | 284 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
252b5132 RH |
285 | |
286 | static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create | |
287 | PARAMS ((bfd *)); | |
288 | ||
30667bf3 AM |
289 | /* Stub handling functions. */ |
290 | static char *hppa_stub_name | |
291 | PARAMS ((const asection *, const asection *, | |
292 | const struct elf32_hppa_link_hash_entry *, | |
293 | const Elf_Internal_Rela *)); | |
edd21aca | 294 | |
30667bf3 AM |
295 | static struct elf32_hppa_stub_hash_entry *hppa_get_stub_entry |
296 | PARAMS ((const asection *, const asection *, | |
297 | struct elf32_hppa_link_hash_entry *, | |
25f72752 AM |
298 | const Elf_Internal_Rela *, |
299 | struct elf32_hppa_link_hash_table *)); | |
edd21aca | 300 | |
30667bf3 | 301 | static struct elf32_hppa_stub_hash_entry *hppa_add_stub |
25f72752 | 302 | PARAMS ((const char *, asection *, struct elf32_hppa_link_hash_table *)); |
30667bf3 AM |
303 | |
304 | static enum elf32_hppa_stub_type hppa_type_of_stub | |
305 | PARAMS ((asection *, const Elf_Internal_Rela *, | |
306 | struct elf32_hppa_link_hash_entry *, bfd_vma)); | |
307 | ||
308 | static boolean hppa_build_one_stub | |
309 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
310 | ||
311 | static boolean hppa_size_one_stub | |
312 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
313 | ||
30667bf3 AM |
314 | /* BFD and elf backend functions. */ |
315 | static boolean elf32_hppa_object_p PARAMS ((bfd *)); | |
252b5132 | 316 | |
edd21aca AM |
317 | static boolean elf32_hppa_add_symbol_hook |
318 | PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, | |
319 | const char **, flagword *, asection **, bfd_vma *)); | |
252b5132 | 320 | |
30667bf3 AM |
321 | static boolean elf32_hppa_create_dynamic_sections |
322 | PARAMS ((bfd *, struct bfd_link_info *)); | |
252b5132 | 323 | |
30667bf3 AM |
324 | static boolean elf32_hppa_check_relocs |
325 | PARAMS ((bfd *, struct bfd_link_info *, | |
326 | asection *, const Elf_Internal_Rela *)); | |
327 | ||
328 | static asection *elf32_hppa_gc_mark_hook | |
329 | PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *, | |
330 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
331 | ||
332 | static boolean elf32_hppa_gc_sweep_hook | |
333 | PARAMS ((bfd *, struct bfd_link_info *, | |
334 | asection *, const Elf_Internal_Rela *)); | |
335 | ||
74d1c347 AM |
336 | static void elf32_hppa_hide_symbol |
337 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
338 | ||
30667bf3 AM |
339 | static boolean elf32_hppa_adjust_dynamic_symbol |
340 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
341 | ||
342 | static boolean hppa_handle_PIC_calls | |
343 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
344 | ||
98ceb8ce AM |
345 | static boolean allocate_dynrelocs |
346 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
347 | ||
348 | static boolean readonly_dynrelocs | |
30667bf3 | 349 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
30667bf3 | 350 | |
d5c73c2f AM |
351 | static boolean clobber_millicode_symbols |
352 | PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *)); | |
353 | ||
30667bf3 AM |
354 | static boolean elf32_hppa_size_dynamic_sections |
355 | PARAMS ((bfd *, struct bfd_link_info *)); | |
356 | ||
c46b7515 AM |
357 | static boolean elf32_hppa_final_link |
358 | PARAMS ((bfd *, struct bfd_link_info *)); | |
359 | ||
360 | static void hppa_record_segment_addr | |
361 | PARAMS ((bfd *, asection *, PTR)); | |
362 | ||
30667bf3 AM |
363 | static bfd_reloc_status_type final_link_relocate |
364 | PARAMS ((asection *, bfd_byte *, const Elf_Internal_Rela *, | |
25f72752 | 365 | bfd_vma, struct elf32_hppa_link_hash_table *, asection *, |
30667bf3 AM |
366 | struct elf32_hppa_link_hash_entry *)); |
367 | ||
368 | static boolean elf32_hppa_relocate_section | |
369 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, | |
370 | bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
371 | ||
c46b7515 AM |
372 | static int hppa_unwind_entry_compare |
373 | PARAMS ((const PTR, const PTR)); | |
374 | ||
30667bf3 AM |
375 | static boolean elf32_hppa_finish_dynamic_symbol |
376 | PARAMS ((bfd *, struct bfd_link_info *, | |
377 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
378 | ||
98ceb8ce AM |
379 | static enum elf_reloc_type_class elf32_hppa_reloc_type_class |
380 | PARAMS ((const Elf_Internal_Rela *)); | |
381 | ||
30667bf3 AM |
382 | static boolean elf32_hppa_finish_dynamic_sections |
383 | PARAMS ((bfd *, struct bfd_link_info *)); | |
384 | ||
d952f17a AM |
385 | static void elf32_hppa_post_process_headers |
386 | PARAMS ((bfd *, struct bfd_link_info *)); | |
387 | ||
30667bf3 AM |
388 | static int elf32_hppa_elf_get_symbol_type |
389 | PARAMS ((Elf_Internal_Sym *, int)); | |
252b5132 | 390 | |
252b5132 RH |
391 | /* Assorted hash table functions. */ |
392 | ||
393 | /* Initialize an entry in the stub hash table. */ | |
394 | ||
395 | static struct bfd_hash_entry * | |
30667bf3 | 396 | stub_hash_newfunc (entry, table, string) |
252b5132 RH |
397 | struct bfd_hash_entry *entry; |
398 | struct bfd_hash_table *table; | |
399 | const char *string; | |
400 | { | |
401 | struct elf32_hppa_stub_hash_entry *ret; | |
402 | ||
403 | ret = (struct elf32_hppa_stub_hash_entry *) entry; | |
404 | ||
405 | /* Allocate the structure if it has not already been allocated by a | |
406 | subclass. */ | |
407 | if (ret == NULL) | |
30667bf3 AM |
408 | { |
409 | ret = ((struct elf32_hppa_stub_hash_entry *) | |
410 | bfd_hash_allocate (table, | |
411 | sizeof (struct elf32_hppa_stub_hash_entry))); | |
412 | if (ret == NULL) | |
413 | return NULL; | |
414 | } | |
252b5132 RH |
415 | |
416 | /* Call the allocation method of the superclass. */ | |
417 | ret = ((struct elf32_hppa_stub_hash_entry *) | |
418 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); | |
419 | ||
420 | if (ret) | |
421 | { | |
422 | /* Initialize the local fields. */ | |
edd21aca | 423 | ret->stub_sec = NULL; |
30667bf3 | 424 | ret->stub_offset = 0; |
252b5132 RH |
425 | ret->target_value = 0; |
426 | ret->target_section = NULL; | |
30667bf3 AM |
427 | ret->stub_type = hppa_stub_long_branch; |
428 | ret->h = NULL; | |
25f72752 | 429 | ret->id_sec = NULL; |
30667bf3 AM |
430 | } |
431 | ||
432 | return (struct bfd_hash_entry *) ret; | |
433 | } | |
434 | ||
30667bf3 AM |
435 | /* Initialize an entry in the link hash table. */ |
436 | ||
437 | static struct bfd_hash_entry * | |
438 | hppa_link_hash_newfunc (entry, table, string) | |
439 | struct bfd_hash_entry *entry; | |
440 | struct bfd_hash_table *table; | |
441 | const char *string; | |
442 | { | |
443 | struct elf32_hppa_link_hash_entry *ret; | |
444 | ||
445 | ret = (struct elf32_hppa_link_hash_entry *) entry; | |
446 | ||
447 | /* Allocate the structure if it has not already been allocated by a | |
448 | subclass. */ | |
449 | if (ret == NULL) | |
450 | { | |
451 | ret = ((struct elf32_hppa_link_hash_entry *) | |
452 | bfd_hash_allocate (table, | |
453 | sizeof (struct elf32_hppa_link_hash_entry))); | |
454 | if (ret == NULL) | |
455 | return NULL; | |
456 | } | |
457 | ||
458 | /* Call the allocation method of the superclass. */ | |
459 | ret = ((struct elf32_hppa_link_hash_entry *) | |
460 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
461 | table, string)); | |
462 | ||
463 | if (ret) | |
464 | { | |
465 | /* Initialize the local fields. */ | |
30667bf3 | 466 | ret->stub_cache = NULL; |
98ceb8ce | 467 | ret->dyn_relocs = NULL; |
12cca0d2 | 468 | ret->maybe_pic_call = 0; |
30667bf3 | 469 | ret->pic_call = 0; |
74d1c347 AM |
470 | ret->plabel = 0; |
471 | ret->plt_abs = 0; | |
252b5132 RH |
472 | } |
473 | ||
474 | return (struct bfd_hash_entry *) ret; | |
475 | } | |
476 | ||
252b5132 RH |
477 | /* Create the derived linker hash table. The PA ELF port uses the derived |
478 | hash table to keep information specific to the PA ELF linker (without | |
479 | using static variables). */ | |
480 | ||
481 | static struct bfd_link_hash_table * | |
482 | elf32_hppa_link_hash_table_create (abfd) | |
483 | bfd *abfd; | |
484 | { | |
485 | struct elf32_hppa_link_hash_table *ret; | |
dc810e39 | 486 | bfd_size_type amt = sizeof (*ret); |
252b5132 | 487 | |
dc810e39 | 488 | ret = (struct elf32_hppa_link_hash_table *) bfd_alloc (abfd, amt); |
252b5132 RH |
489 | if (ret == NULL) |
490 | return NULL; | |
edd21aca | 491 | |
30667bf3 | 492 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, hppa_link_hash_newfunc)) |
252b5132 RH |
493 | { |
494 | bfd_release (abfd, ret); | |
495 | return NULL; | |
496 | } | |
edd21aca AM |
497 | |
498 | /* Init the stub hash table too. */ | |
30667bf3 | 499 | if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc)) |
edd21aca AM |
500 | return NULL; |
501 | ||
30667bf3 | 502 | ret->stub_bfd = NULL; |
30667bf3 AM |
503 | ret->add_stub_section = NULL; |
504 | ret->layout_sections_again = NULL; | |
25f72752 | 505 | ret->stub_group = NULL; |
30667bf3 AM |
506 | ret->sgot = NULL; |
507 | ret->srelgot = NULL; | |
508 | ret->splt = NULL; | |
509 | ret->srelplt = NULL; | |
510 | ret->sdynbss = NULL; | |
511 | ret->srelbss = NULL; | |
c46b7515 AM |
512 | ret->text_segment_base = (bfd_vma) -1; |
513 | ret->data_segment_base = (bfd_vma) -1; | |
47d89dba AM |
514 | ret->multi_subspace = 0; |
515 | ret->has_12bit_branch = 0; | |
516 | ret->has_17bit_branch = 0; | |
517 | ret->need_plt_stub = 0; | |
252b5132 RH |
518 | |
519 | return &ret->root.root; | |
520 | } | |
521 | ||
30667bf3 AM |
522 | /* Build a name for an entry in the stub hash table. */ |
523 | ||
edd21aca | 524 | static char * |
30667bf3 | 525 | hppa_stub_name (input_section, sym_sec, hash, rel) |
edd21aca | 526 | const asection *input_section; |
30667bf3 AM |
527 | const asection *sym_sec; |
528 | const struct elf32_hppa_link_hash_entry *hash; | |
529 | const Elf_Internal_Rela *rel; | |
edd21aca AM |
530 | { |
531 | char *stub_name; | |
dc810e39 | 532 | bfd_size_type len; |
edd21aca | 533 | |
30667bf3 AM |
534 | if (hash) |
535 | { | |
536 | len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1; | |
537 | stub_name = bfd_malloc (len); | |
538 | if (stub_name != NULL) | |
539 | { | |
540 | sprintf (stub_name, "%08x_%s+%x", | |
541 | input_section->id & 0xffffffff, | |
542 | hash->elf.root.root.string, | |
543 | (int) rel->r_addend & 0xffffffff); | |
544 | } | |
545 | } | |
546 | else | |
edd21aca | 547 | { |
30667bf3 AM |
548 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
549 | stub_name = bfd_malloc (len); | |
550 | if (stub_name != NULL) | |
551 | { | |
552 | sprintf (stub_name, "%08x_%x:%x+%x", | |
553 | input_section->id & 0xffffffff, | |
554 | sym_sec->id & 0xffffffff, | |
555 | (int) ELF32_R_SYM (rel->r_info) & 0xffffffff, | |
556 | (int) rel->r_addend & 0xffffffff); | |
557 | } | |
edd21aca AM |
558 | } |
559 | return stub_name; | |
560 | } | |
252b5132 | 561 | |
30667bf3 AM |
562 | /* Look up an entry in the stub hash. Stub entries are cached because |
563 | creating the stub name takes a bit of time. */ | |
564 | ||
565 | static struct elf32_hppa_stub_hash_entry * | |
25f72752 | 566 | hppa_get_stub_entry (input_section, sym_sec, hash, rel, hplink) |
30667bf3 AM |
567 | const asection *input_section; |
568 | const asection *sym_sec; | |
569 | struct elf32_hppa_link_hash_entry *hash; | |
570 | const Elf_Internal_Rela *rel; | |
25f72752 | 571 | struct elf32_hppa_link_hash_table *hplink; |
252b5132 | 572 | { |
30667bf3 | 573 | struct elf32_hppa_stub_hash_entry *stub_entry; |
25f72752 AM |
574 | const asection *id_sec; |
575 | ||
576 | /* If this input section is part of a group of sections sharing one | |
577 | stub section, then use the id of the first section in the group. | |
578 | Stub names need to include a section id, as there may well be | |
579 | more than one stub used to reach say, printf, and we need to | |
580 | distinguish between them. */ | |
581 | id_sec = hplink->stub_group[input_section->id].link_sec; | |
edd21aca | 582 | |
30667bf3 AM |
583 | if (hash != NULL && hash->stub_cache != NULL |
584 | && hash->stub_cache->h == hash | |
25f72752 | 585 | && hash->stub_cache->id_sec == id_sec) |
edd21aca | 586 | { |
30667bf3 AM |
587 | stub_entry = hash->stub_cache; |
588 | } | |
589 | else | |
590 | { | |
30667bf3 | 591 | char *stub_name; |
edd21aca | 592 | |
25f72752 | 593 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, rel); |
30667bf3 AM |
594 | if (stub_name == NULL) |
595 | return NULL; | |
edd21aca | 596 | |
25f72752 AM |
597 | stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table, |
598 | stub_name, false, false); | |
30667bf3 AM |
599 | if (stub_entry == NULL) |
600 | { | |
601 | if (hash == NULL || hash->elf.root.type != bfd_link_hash_undefweak) | |
602 | (*_bfd_error_handler) (_("%s(%s+0x%lx): cannot find stub entry %s"), | |
8f615d07 | 603 | bfd_archive_filename (input_section->owner), |
30667bf3 AM |
604 | input_section->name, |
605 | (long) rel->r_offset, | |
606 | stub_name); | |
607 | } | |
608 | else | |
609 | { | |
610 | if (hash != NULL) | |
611 | hash->stub_cache = stub_entry; | |
612 | } | |
613 | ||
614 | free (stub_name); | |
edd21aca | 615 | } |
30667bf3 AM |
616 | |
617 | return stub_entry; | |
618 | } | |
619 | ||
30667bf3 AM |
620 | /* Add a new stub entry to the stub hash. Not all fields of the new |
621 | stub entry are initialised. */ | |
622 | ||
623 | static struct elf32_hppa_stub_hash_entry * | |
25f72752 | 624 | hppa_add_stub (stub_name, section, hplink) |
30667bf3 AM |
625 | const char *stub_name; |
626 | asection *section; | |
25f72752 | 627 | struct elf32_hppa_link_hash_table *hplink; |
30667bf3 | 628 | { |
25f72752 | 629 | asection *link_sec; |
30667bf3 | 630 | asection *stub_sec; |
30667bf3 | 631 | struct elf32_hppa_stub_hash_entry *stub_entry; |
edd21aca | 632 | |
25f72752 AM |
633 | link_sec = hplink->stub_group[section->id].link_sec; |
634 | stub_sec = hplink->stub_group[section->id].stub_sec; | |
30667bf3 | 635 | if (stub_sec == NULL) |
edd21aca | 636 | { |
25f72752 | 637 | stub_sec = hplink->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
638 | if (stub_sec == NULL) |
639 | { | |
dc810e39 | 640 | bfd_size_type len; |
30667bf3 AM |
641 | char *s_name; |
642 | ||
25f72752 | 643 | len = strlen (link_sec->name) + sizeof (STUB_SUFFIX); |
30667bf3 AM |
644 | s_name = bfd_alloc (hplink->stub_bfd, len); |
645 | if (s_name == NULL) | |
646 | return NULL; | |
647 | ||
25f72752 | 648 | strcpy (s_name, link_sec->name); |
30667bf3 | 649 | strcpy (s_name + len - sizeof (STUB_SUFFIX), STUB_SUFFIX); |
25f72752 | 650 | stub_sec = (*hplink->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
651 | if (stub_sec == NULL) |
652 | return NULL; | |
25f72752 | 653 | hplink->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 654 | } |
25f72752 | 655 | hplink->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 656 | } |
252b5132 | 657 | |
30667bf3 AM |
658 | /* Enter this entry into the linker stub hash table. */ |
659 | stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table, stub_name, | |
660 | true, false); | |
661 | if (stub_entry == NULL) | |
662 | { | |
663 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
8f615d07 | 664 | bfd_archive_filename (section->owner), |
30667bf3 AM |
665 | stub_name); |
666 | return NULL; | |
edd21aca AM |
667 | } |
668 | ||
30667bf3 | 669 | stub_entry->stub_sec = stub_sec; |
30667bf3 | 670 | stub_entry->stub_offset = 0; |
25f72752 | 671 | stub_entry->id_sec = link_sec; |
30667bf3 | 672 | return stub_entry; |
edd21aca AM |
673 | } |
674 | ||
30667bf3 AM |
675 | /* Determine the type of stub needed, if any, for a call. */ |
676 | ||
677 | static enum elf32_hppa_stub_type | |
678 | hppa_type_of_stub (input_sec, rel, hash, destination) | |
679 | asection *input_sec; | |
680 | const Elf_Internal_Rela *rel; | |
681 | struct elf32_hppa_link_hash_entry *hash; | |
682 | bfd_vma destination; | |
edd21aca | 683 | { |
edd21aca | 684 | bfd_vma location; |
30667bf3 AM |
685 | bfd_vma branch_offset; |
686 | bfd_vma max_branch_offset; | |
687 | unsigned int r_type; | |
688 | ||
689 | if (hash != NULL | |
690 | && (((hash->elf.root.type == bfd_link_hash_defined | |
74d1c347 AM |
691 | || hash->elf.root.type == bfd_link_hash_defweak) |
692 | && hash->elf.root.u.def.section->output_section == NULL) | |
693 | || (hash->elf.root.type == bfd_link_hash_defweak | |
694 | && hash->elf.dynindx != -1 | |
695 | && hash->elf.plt.offset != (bfd_vma) -1) | |
30667bf3 AM |
696 | || hash->elf.root.type == bfd_link_hash_undefweak |
697 | || hash->elf.root.type == bfd_link_hash_undefined | |
12cca0d2 | 698 | || (hash->maybe_pic_call && !(input_sec->flags & SEC_HAS_GOT_REF)))) |
30667bf3 AM |
699 | { |
700 | /* If output_section is NULL, then it's a symbol defined in a | |
701 | shared library. We will need an import stub. Decide between | |
74d1c347 AM |
702 | hppa_stub_import and hppa_stub_import_shared later. For |
703 | shared links we need stubs for undefined or weak syms too; | |
704 | They will presumably be resolved by the dynamic linker. */ | |
30667bf3 AM |
705 | return hppa_stub_import; |
706 | } | |
edd21aca | 707 | |
30667bf3 AM |
708 | /* Determine where the call point is. */ |
709 | location = (input_sec->output_offset | |
710 | + input_sec->output_section->vma | |
711 | + rel->r_offset); | |
edd21aca | 712 | |
30667bf3 AM |
713 | branch_offset = destination - location - 8; |
714 | r_type = ELF32_R_TYPE (rel->r_info); | |
edd21aca | 715 | |
30667bf3 AM |
716 | /* Determine if a long branch stub is needed. parisc branch offsets |
717 | are relative to the second instruction past the branch, ie. +8 | |
718 | bytes on from the branch instruction location. The offset is | |
719 | signed and counts in units of 4 bytes. */ | |
720 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 721 | { |
30667bf3 AM |
722 | max_branch_offset = (1 << (17-1)) << 2; |
723 | } | |
724 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
725 | { | |
726 | max_branch_offset = (1 << (12-1)) << 2; | |
727 | } | |
25f72752 | 728 | else /* R_PARISC_PCREL22F. */ |
30667bf3 AM |
729 | { |
730 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
731 | } |
732 | ||
30667bf3 | 733 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
734 | return hppa_stub_long_branch; |
735 | ||
30667bf3 AM |
736 | return hppa_stub_none; |
737 | } | |
edd21aca | 738 | |
30667bf3 AM |
739 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
740 | IN_ARG contains the link info pointer. */ | |
edd21aca | 741 | |
30667bf3 AM |
742 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
743 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 744 | |
30667bf3 | 745 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 746 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 747 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 748 | |
3ee1d854 AM |
749 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
750 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 751 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 752 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 753 | |
3ee1d854 AM |
754 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
755 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 756 | |
30667bf3 AM |
757 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
758 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
759 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
760 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 761 | |
30667bf3 AM |
762 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
763 | #define NOP 0x08000240 /* nop */ | |
764 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
765 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
766 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 767 | |
30667bf3 AM |
768 | #ifndef R19_STUBS |
769 | #define R19_STUBS 1 | |
770 | #endif | |
edd21aca | 771 | |
30667bf3 AM |
772 | #if R19_STUBS |
773 | #define LDW_R1_DLT LDW_R1_R19 | |
774 | #else | |
775 | #define LDW_R1_DLT LDW_R1_DP | |
776 | #endif | |
edd21aca | 777 | |
30667bf3 AM |
778 | static boolean |
779 | hppa_build_one_stub (gen_entry, in_arg) | |
780 | struct bfd_hash_entry *gen_entry; | |
781 | PTR in_arg; | |
782 | { | |
783 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
784 | struct bfd_link_info *info; | |
785 | struct elf32_hppa_link_hash_table *hplink; | |
786 | asection *stub_sec; | |
787 | bfd *stub_bfd; | |
788 | bfd_byte *loc; | |
789 | bfd_vma sym_value; | |
74d1c347 | 790 | bfd_vma insn; |
8dea1268 | 791 | bfd_vma off; |
74d1c347 | 792 | int val; |
30667bf3 | 793 | int size; |
edd21aca | 794 | |
30667bf3 AM |
795 | /* Massage our args to the form they really have. */ |
796 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
797 | info = (struct bfd_link_info *) in_arg; | |
798 | ||
799 | hplink = hppa_link_hash_table (info); | |
800 | stub_sec = stub_entry->stub_sec; | |
edd21aca | 801 | |
30667bf3 | 802 | /* Make a note of the offset within the stubs for this entry. */ |
74d1c347 | 803 | stub_entry->stub_offset = stub_sec->_raw_size; |
30667bf3 | 804 | loc = stub_sec->contents + stub_entry->stub_offset; |
252b5132 | 805 | |
30667bf3 AM |
806 | stub_bfd = stub_sec->owner; |
807 | ||
808 | switch (stub_entry->stub_type) | |
809 | { | |
810 | case hppa_stub_long_branch: | |
811 | /* Create the long branch. A long branch is formed with "ldil" | |
812 | loading the upper bits of the target address into a register, | |
813 | then branching with "be" which adds in the lower bits. | |
814 | The "be" has its delay slot nullified. */ | |
815 | sym_value = (stub_entry->target_value | |
816 | + stub_entry->target_section->output_offset | |
817 | + stub_entry->target_section->output_section->vma); | |
818 | ||
74d1c347 AM |
819 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel); |
820 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); | |
30667bf3 AM |
821 | bfd_put_32 (stub_bfd, insn, loc); |
822 | ||
74d1c347 AM |
823 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel) >> 2; |
824 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); | |
30667bf3 AM |
825 | bfd_put_32 (stub_bfd, insn, loc + 4); |
826 | ||
30667bf3 | 827 | size = 8; |
edd21aca AM |
828 | break; |
829 | ||
30667bf3 AM |
830 | case hppa_stub_long_branch_shared: |
831 | /* Branches are relative. This is where we are going to. */ | |
832 | sym_value = (stub_entry->target_value | |
833 | + stub_entry->target_section->output_offset | |
834 | + stub_entry->target_section->output_section->vma); | |
835 | ||
836 | /* And this is where we are coming from, more or less. */ | |
837 | sym_value -= (stub_entry->stub_offset | |
838 | + stub_sec->output_offset | |
839 | + stub_sec->output_section->vma); | |
840 | ||
74d1c347 | 841 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 842 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 843 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
844 | bfd_put_32 (stub_bfd, insn, loc + 4); |
845 | ||
47d89dba | 846 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 847 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
848 | bfd_put_32 (stub_bfd, insn, loc + 8); |
849 | size = 12; | |
850 | break; | |
edd21aca | 851 | |
30667bf3 AM |
852 | case hppa_stub_import: |
853 | case hppa_stub_import_shared: | |
8dea1268 AM |
854 | off = stub_entry->h->elf.plt.offset; |
855 | if (off >= (bfd_vma) -2) | |
49e9d0d3 | 856 | abort (); |
8dea1268 AM |
857 | |
858 | off &= ~ (bfd_vma) 1; | |
859 | sym_value = (off | |
30667bf3 AM |
860 | + hplink->splt->output_offset |
861 | + hplink->splt->output_section->vma | |
862 | - elf_gp (hplink->splt->output_section->owner)); | |
863 | ||
864 | insn = ADDIL_DP; | |
865 | #if R19_STUBS | |
866 | if (stub_entry->stub_type == hppa_stub_import_shared) | |
867 | insn = ADDIL_R19; | |
868 | #endif | |
47d89dba | 869 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel), |
74d1c347 | 870 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 871 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 872 | |
47d89dba AM |
873 | /* It is critical to use lrsel/rrsel here because we are using |
874 | two different offsets (+0 and +4) from sym_value. If we use | |
875 | lsel/rsel then with unfortunate sym_values we will round | |
876 | sym_value+4 up to the next 2k block leading to a mis-match | |
877 | between the lsel and rsel value. */ | |
878 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel); | |
74d1c347 | 879 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 880 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 881 | |
30667bf3 AM |
882 | if (hplink->multi_subspace) |
883 | { | |
47d89dba | 884 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 885 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 886 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 887 | |
74d1c347 AM |
888 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
889 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
890 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
891 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 892 | |
30667bf3 AM |
893 | size = 28; |
894 | } | |
895 | else | |
896 | { | |
74d1c347 | 897 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 898 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 899 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 900 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 901 | |
30667bf3 AM |
902 | size = 16; |
903 | } | |
252b5132 | 904 | |
30667bf3 AM |
905 | if (!info->shared |
906 | && stub_entry->h != NULL | |
907 | && stub_entry->h->pic_call) | |
252b5132 | 908 | { |
30667bf3 AM |
909 | /* Build the .plt entry needed to call a PIC function from |
910 | statically linked code. We don't need any relocs. */ | |
911 | bfd *dynobj; | |
912 | struct elf32_hppa_link_hash_entry *eh; | |
913 | bfd_vma value; | |
252b5132 | 914 | |
74d1c347 | 915 | dynobj = hplink->root.dynobj; |
30667bf3 | 916 | eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h; |
252b5132 | 917 | |
49e9d0d3 AM |
918 | if (eh->elf.root.type != bfd_link_hash_defined |
919 | && eh->elf.root.type != bfd_link_hash_defweak) | |
920 | abort (); | |
252b5132 | 921 | |
30667bf3 AM |
922 | value = (eh->elf.root.u.def.value |
923 | + eh->elf.root.u.def.section->output_offset | |
924 | + eh->elf.root.u.def.section->output_section->vma); | |
252b5132 | 925 | |
30667bf3 | 926 | /* Fill in the entry in the procedure linkage table. |
252b5132 | 927 | |
30667bf3 | 928 | The format of a plt entry is |
74d1c347 AM |
929 | <funcaddr> |
930 | <__gp>. */ | |
252b5132 | 931 | |
30667bf3 | 932 | bfd_put_32 (hplink->splt->owner, value, |
8dea1268 | 933 | hplink->splt->contents + off); |
30667bf3 AM |
934 | value = elf_gp (hplink->splt->output_section->owner); |
935 | bfd_put_32 (hplink->splt->owner, value, | |
8dea1268 | 936 | hplink->splt->contents + off + 4); |
252b5132 | 937 | } |
30667bf3 | 938 | break; |
252b5132 | 939 | |
30667bf3 AM |
940 | case hppa_stub_export: |
941 | /* Branches are relative. This is where we are going to. */ | |
942 | sym_value = (stub_entry->target_value | |
943 | + stub_entry->target_section->output_offset | |
944 | + stub_entry->target_section->output_section->vma); | |
252b5132 | 945 | |
30667bf3 AM |
946 | /* And this is where we are coming from. */ |
947 | sym_value -= (stub_entry->stub_offset | |
948 | + stub_sec->output_offset | |
949 | + stub_sec->output_section->vma); | |
edd21aca | 950 | |
30667bf3 AM |
951 | if (sym_value - 8 + 0x40000 >= 0x80000) |
952 | { | |
edd21aca | 953 | (*_bfd_error_handler) |
30667bf3 | 954 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
8f615d07 | 955 | bfd_archive_filename (stub_entry->target_section->owner), |
30667bf3 AM |
956 | stub_sec->name, |
957 | (long) stub_entry->stub_offset, | |
958 | stub_entry->root.string); | |
959 | bfd_set_error (bfd_error_bad_value); | |
edd21aca | 960 | return false; |
252b5132 | 961 | } |
30667bf3 | 962 | |
74d1c347 AM |
963 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
964 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
30667bf3 AM |
965 | bfd_put_32 (stub_bfd, insn, loc); |
966 | ||
74d1c347 AM |
967 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
968 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
969 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
970 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
971 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
972 | |
973 | /* Point the function symbol at the stub. */ | |
974 | stub_entry->h->elf.root.u.def.section = stub_sec; | |
74d1c347 | 975 | stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size; |
30667bf3 AM |
976 | |
977 | size = 24; | |
978 | break; | |
979 | ||
980 | default: | |
981 | BFD_FAIL (); | |
982 | return false; | |
252b5132 RH |
983 | } |
984 | ||
74d1c347 | 985 | stub_sec->_raw_size += size; |
252b5132 RH |
986 | return true; |
987 | } | |
988 | ||
30667bf3 AM |
989 | #undef LDIL_R1 |
990 | #undef BE_SR4_R1 | |
991 | #undef BL_R1 | |
992 | #undef ADDIL_R1 | |
993 | #undef DEPI_R1 | |
994 | #undef ADDIL_DP | |
995 | #undef LDW_R1_R21 | |
996 | #undef LDW_R1_DLT | |
997 | #undef LDW_R1_R19 | |
998 | #undef ADDIL_R19 | |
999 | #undef LDW_R1_DP | |
1000 | #undef LDSID_R21_R1 | |
1001 | #undef MTSP_R1 | |
1002 | #undef BE_SR0_R21 | |
1003 | #undef STW_RP | |
1004 | #undef BV_R0_R21 | |
1005 | #undef BL_RP | |
1006 | #undef NOP | |
1007 | #undef LDW_RP | |
1008 | #undef LDSID_RP_R1 | |
1009 | #undef BE_SR0_RP | |
252b5132 | 1010 | |
30667bf3 AM |
1011 | /* As above, but don't actually build the stub. Just bump offset so |
1012 | we know stub section sizes. */ | |
1013 | ||
1014 | static boolean | |
1015 | hppa_size_one_stub (gen_entry, in_arg) | |
1016 | struct bfd_hash_entry *gen_entry; | |
1017 | PTR in_arg; | |
252b5132 | 1018 | { |
30667bf3 AM |
1019 | struct elf32_hppa_stub_hash_entry *stub_entry; |
1020 | struct elf32_hppa_link_hash_table *hplink; | |
1021 | int size; | |
1022 | ||
1023 | /* Massage our args to the form they really have. */ | |
1024 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
1025 | hplink = (struct elf32_hppa_link_hash_table *) in_arg; | |
1026 | ||
1027 | if (stub_entry->stub_type == hppa_stub_long_branch) | |
98ceb8ce | 1028 | size = 8; |
30667bf3 AM |
1029 | else if (stub_entry->stub_type == hppa_stub_long_branch_shared) |
1030 | size = 12; | |
1031 | else if (stub_entry->stub_type == hppa_stub_export) | |
1032 | size = 24; | |
74d1c347 | 1033 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 1034 | { |
30667bf3 AM |
1035 | if (hplink->multi_subspace) |
1036 | size = 28; | |
1037 | else | |
1038 | size = 16; | |
1039 | } | |
252b5132 | 1040 | |
74d1c347 | 1041 | stub_entry->stub_sec->_raw_size += size; |
30667bf3 AM |
1042 | return true; |
1043 | } | |
252b5132 | 1044 | |
30667bf3 AM |
1045 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
1046 | Additionally we set the default architecture and machine. */ | |
1047 | ||
1048 | static boolean | |
1049 | elf32_hppa_object_p (abfd) | |
1050 | bfd *abfd; | |
1051 | { | |
24a5e751 L |
1052 | Elf_Internal_Ehdr * i_ehdrp; |
1053 | unsigned int flags; | |
252b5132 | 1054 | |
24a5e751 L |
1055 | i_ehdrp = elf_elfheader (abfd); |
1056 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
1057 | { | |
1058 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX) | |
1059 | return false; | |
1060 | } | |
1061 | else | |
1062 | { | |
1063 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
1064 | return false; | |
1065 | } | |
1066 | ||
1067 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
1068 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
1069 | { | |
1070 | case EFA_PARISC_1_0: | |
1071 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
1072 | case EFA_PARISC_1_1: | |
1073 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
1074 | case EFA_PARISC_2_0: | |
1075 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
1076 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
1077 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
1078 | } | |
1079 | return true; | |
252b5132 RH |
1080 | } |
1081 | ||
252b5132 RH |
1082 | /* Undo the generic ELF code's subtraction of section->vma from the |
1083 | value of each external symbol. */ | |
1084 | ||
1085 | static boolean | |
1086 | elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
5f771d47 ILT |
1087 | bfd *abfd ATTRIBUTE_UNUSED; |
1088 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1089 | const Elf_Internal_Sym *sym ATTRIBUTE_UNUSED; | |
1090 | const char **namep ATTRIBUTE_UNUSED; | |
1091 | flagword *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
1092 | asection **secp; |
1093 | bfd_vma *valp; | |
1094 | { | |
1095 | *valp += (*secp)->vma; | |
1096 | return true; | |
1097 | } | |
1098 | ||
30667bf3 AM |
1099 | /* Create the .plt and .got sections, and set up our hash table |
1100 | short-cuts to various dynamic sections. */ | |
1101 | ||
1102 | static boolean | |
1103 | elf32_hppa_create_dynamic_sections (abfd, info) | |
1104 | bfd *abfd; | |
1105 | struct bfd_link_info *info; | |
252b5132 | 1106 | { |
30667bf3 | 1107 | struct elf32_hppa_link_hash_table *hplink; |
edd21aca | 1108 | |
30667bf3 AM |
1109 | /* Don't try to create the .plt and .got twice. */ |
1110 | hplink = hppa_link_hash_table (info); | |
1111 | if (hplink->splt != NULL) | |
1112 | return true; | |
edd21aca | 1113 | |
30667bf3 AM |
1114 | /* Call the generic code to do most of the work. */ |
1115 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
1116 | return false; | |
252b5132 | 1117 | |
47d89dba | 1118 | hplink->splt = bfd_get_section_by_name (abfd, ".plt"); |
30667bf3 AM |
1119 | hplink->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
1120 | ||
1121 | hplink->sgot = bfd_get_section_by_name (abfd, ".got"); | |
1122 | hplink->srelgot = bfd_make_section (abfd, ".rela.got"); | |
1123 | if (hplink->srelgot == NULL | |
1124 | || ! bfd_set_section_flags (abfd, hplink->srelgot, | |
1125 | (SEC_ALLOC | |
1126 | | SEC_LOAD | |
1127 | | SEC_HAS_CONTENTS | |
1128 | | SEC_IN_MEMORY | |
1129 | | SEC_LINKER_CREATED | |
1130 | | SEC_READONLY)) | |
1131 | || ! bfd_set_section_alignment (abfd, hplink->srelgot, 2)) | |
1132 | return false; | |
edd21aca | 1133 | |
30667bf3 AM |
1134 | hplink->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
1135 | hplink->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
1136 | ||
1137 | return true; | |
1138 | } | |
1139 | ||
30667bf3 AM |
1140 | /* Look through the relocs for a section during the first phase, and |
1141 | allocate space in the global offset table or procedure linkage | |
1142 | table. At this point we haven't necessarily read all the input | |
1143 | files. */ | |
252b5132 RH |
1144 | |
1145 | static boolean | |
30667bf3 AM |
1146 | elf32_hppa_check_relocs (abfd, info, sec, relocs) |
1147 | bfd *abfd; | |
1148 | struct bfd_link_info *info; | |
1149 | asection *sec; | |
1150 | const Elf_Internal_Rela *relocs; | |
252b5132 | 1151 | { |
30667bf3 AM |
1152 | bfd *dynobj; |
1153 | Elf_Internal_Shdr *symtab_hdr; | |
1154 | struct elf_link_hash_entry **sym_hashes; | |
1155 | bfd_signed_vma *local_got_refcounts; | |
1156 | const Elf_Internal_Rela *rel; | |
1157 | const Elf_Internal_Rela *rel_end; | |
1158 | struct elf32_hppa_link_hash_table *hplink; | |
1159 | asection *sreloc; | |
1160 | asection *stubreloc; | |
1161 | ||
1162 | if (info->relocateable) | |
1163 | return true; | |
1164 | ||
1165 | hplink = hppa_link_hash_table (info); | |
74d1c347 | 1166 | dynobj = hplink->root.dynobj; |
30667bf3 AM |
1167 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1168 | sym_hashes = elf_sym_hashes (abfd); | |
1169 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1170 | sreloc = NULL; | |
1171 | stubreloc = NULL; | |
1172 | ||
1173 | rel_end = relocs + sec->reloc_count; | |
1174 | for (rel = relocs; rel < rel_end; rel++) | |
1175 | { | |
1176 | enum { | |
1177 | NEED_GOT = 1, | |
1178 | NEED_PLT = 2, | |
1179 | NEED_DYNREL = 4, | |
98ceb8ce | 1180 | PLT_PLABEL = 8 |
30667bf3 | 1181 | }; |
edd21aca | 1182 | |
30667bf3 AM |
1183 | unsigned int r_symndx, r_type; |
1184 | struct elf32_hppa_link_hash_entry *h; | |
1185 | int need_entry; | |
252b5132 | 1186 | |
30667bf3 | 1187 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 | 1188 | |
30667bf3 AM |
1189 | if (r_symndx < symtab_hdr->sh_info) |
1190 | h = NULL; | |
1191 | else | |
1192 | h = ((struct elf32_hppa_link_hash_entry *) | |
1193 | sym_hashes[r_symndx - symtab_hdr->sh_info]); | |
252b5132 | 1194 | |
30667bf3 | 1195 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 | 1196 | |
30667bf3 AM |
1197 | switch (r_type) |
1198 | { | |
1199 | case R_PARISC_DLTIND14F: | |
1200 | case R_PARISC_DLTIND14R: | |
1201 | case R_PARISC_DLTIND21L: | |
1202 | /* This symbol requires a global offset table entry. */ | |
1203 | need_entry = NEED_GOT; | |
1204 | ||
1205 | /* Mark this section as containing PIC code. */ | |
1206 | sec->flags |= SEC_HAS_GOT_REF; | |
1207 | break; | |
1208 | ||
1209 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1210 | case R_PARISC_PLABEL21L: | |
1211 | case R_PARISC_PLABEL32: | |
74d1c347 | 1212 | /* If the addend is non-zero, we break badly. */ |
49e9d0d3 AM |
1213 | if (rel->r_addend != 0) |
1214 | abort (); | |
74d1c347 AM |
1215 | |
1216 | /* If we are creating a shared library, then we need to | |
1217 | create a PLT entry for all PLABELs, because PLABELs with | |
1218 | local symbols may be passed via a pointer to another | |
1219 | object. Additionally, output a dynamic relocation | |
4dc86686 AM |
1220 | pointing to the PLT entry. |
1221 | For executables, the original 32-bit ABI allowed two | |
1222 | different styles of PLABELs (function pointers): For | |
1223 | global functions, the PLABEL word points into the .plt | |
1224 | two bytes past a (function address, gp) pair, and for | |
1225 | local functions the PLABEL points directly at the | |
1226 | function. The magic +2 for the first type allows us to | |
1227 | differentiate between the two. As you can imagine, this | |
1228 | is a real pain when it comes to generating code to call | |
1229 | functions indirectly or to compare function pointers. | |
1230 | We avoid the mess by always pointing a PLABEL into the | |
1231 | .plt, even for local functions. */ | |
74d1c347 | 1232 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1233 | break; |
1234 | ||
1235 | case R_PARISC_PCREL12F: | |
47d89dba AM |
1236 | hplink->has_12bit_branch = 1; |
1237 | /* Fall thru. */ | |
30667bf3 AM |
1238 | case R_PARISC_PCREL17C: |
1239 | case R_PARISC_PCREL17F: | |
47d89dba AM |
1240 | hplink->has_17bit_branch = 1; |
1241 | /* Fall thru. */ | |
30667bf3 | 1242 | case R_PARISC_PCREL22F: |
47d89dba AM |
1243 | /* Function calls might need to go through the .plt, and |
1244 | might require long branch stubs. */ | |
30667bf3 AM |
1245 | if (h == NULL) |
1246 | { | |
1247 | /* We know local syms won't need a .plt entry, and if | |
1248 | they need a long branch stub we can't guarantee that | |
1249 | we can reach the stub. So just flag an error later | |
1250 | if we're doing a shared link and find we need a long | |
1251 | branch stub. */ | |
1252 | continue; | |
1253 | } | |
1254 | else | |
1255 | { | |
1256 | /* Global symbols will need a .plt entry if they remain | |
1257 | global, and in most cases won't need a long branch | |
1258 | stub. Unfortunately, we have to cater for the case | |
1259 | where a symbol is forced local by versioning, or due | |
1260 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1261 | need_entry = NEED_PLT; |
4dc86686 | 1262 | if (h->elf.type == STT_PARISC_MILLI) |
98ceb8ce | 1263 | need_entry = 0; |
30667bf3 AM |
1264 | } |
1265 | break; | |
1266 | ||
1267 | case R_PARISC_SEGBASE: /* Used to set segment base. */ | |
c46b7515 | 1268 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1269 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1270 | case R_PARISC_PCREL14R: | |
1271 | case R_PARISC_PCREL17R: /* External branches. */ | |
1272 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
1273 | /* We don't need to propagate the relocation if linking a | |
1274 | shared object since these are section relative. */ | |
1275 | continue; | |
1276 | ||
1277 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1278 | case R_PARISC_DPREL14R: | |
1279 | case R_PARISC_DPREL21L: | |
1280 | if (info->shared) | |
1281 | { | |
1282 | (*_bfd_error_handler) | |
1283 | (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1284 | bfd_archive_filename (abfd), |
30667bf3 AM |
1285 | elf_hppa_howto_table[r_type].name); |
1286 | bfd_set_error (bfd_error_bad_value); | |
1287 | return false; | |
1288 | } | |
1289 | /* Fall through. */ | |
1290 | ||
1291 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1292 | case R_PARISC_DIR17R: | |
47d89dba AM |
1293 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1294 | case R_PARISC_DIR14R: | |
30667bf3 AM |
1295 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
1296 | #if 1 | |
1297 | /* Help debug shared library creation. Any of the above | |
1298 | relocs can be used in shared libs, but they may cause | |
1299 | pages to become unshared. */ | |
1300 | if (info->shared) | |
1301 | { | |
1302 | (*_bfd_error_handler) | |
1303 | (_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1304 | bfd_archive_filename (abfd), |
30667bf3 AM |
1305 | elf_hppa_howto_table[r_type].name); |
1306 | } | |
1307 | /* Fall through. */ | |
1308 | #endif | |
1309 | ||
c46b7515 | 1310 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1311 | /* We may want to output a dynamic relocation later. */ |
1312 | need_entry = NEED_DYNREL; | |
1313 | break; | |
1314 | ||
1315 | /* This relocation describes the C++ object vtable hierarchy. | |
1316 | Reconstruct it for later use during GC. */ | |
1317 | case R_PARISC_GNU_VTINHERIT: | |
1318 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, | |
1319 | &h->elf, rel->r_offset)) | |
1320 | return false; | |
1321 | continue; | |
1322 | ||
1323 | /* This relocation describes which C++ vtable entries are actually | |
1324 | used. Record for later use during GC. */ | |
1325 | case R_PARISC_GNU_VTENTRY: | |
1326 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, | |
36605136 | 1327 | &h->elf, rel->r_addend)) |
30667bf3 AM |
1328 | return false; |
1329 | continue; | |
1330 | ||
1331 | default: | |
1332 | continue; | |
1333 | } | |
1334 | ||
1335 | /* Now carry out our orders. */ | |
1336 | if (need_entry & NEED_GOT) | |
1337 | { | |
1338 | /* Allocate space for a GOT entry, as well as a dynamic | |
25f72752 | 1339 | relocation for this entry. */ |
30667bf3 | 1340 | if (dynobj == NULL) |
74d1c347 | 1341 | hplink->root.dynobj = dynobj = abfd; |
30667bf3 AM |
1342 | |
1343 | if (hplink->sgot == NULL) | |
1344 | { | |
1345 | if (! elf32_hppa_create_dynamic_sections (dynobj, info)) | |
1346 | return false; | |
1347 | } | |
1348 | ||
1349 | if (h != NULL) | |
1350 | { | |
1351 | if (h->elf.got.refcount == -1) | |
446f2863 | 1352 | h->elf.got.refcount = 1; |
30667bf3 AM |
1353 | else |
1354 | h->elf.got.refcount += 1; | |
1355 | } | |
1356 | else | |
1357 | { | |
1358 | /* This is a global offset table entry for a local symbol. */ | |
1359 | if (local_got_refcounts == NULL) | |
1360 | { | |
dc810e39 | 1361 | bfd_size_type size; |
30667bf3 | 1362 | |
74d1c347 AM |
1363 | /* Allocate space for local got offsets and local |
1364 | plt offsets. Done this way to save polluting | |
1365 | elf_obj_tdata with another target specific | |
1366 | pointer. */ | |
dc810e39 AM |
1367 | size = symtab_hdr->sh_info; |
1368 | size *= 2 * sizeof (bfd_signed_vma); | |
30667bf3 AM |
1369 | local_got_refcounts = ((bfd_signed_vma *) |
1370 | bfd_alloc (abfd, size)); | |
1371 | if (local_got_refcounts == NULL) | |
1372 | return false; | |
1373 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
dc810e39 | 1374 | memset (local_got_refcounts, -1, (size_t) size); |
30667bf3 AM |
1375 | } |
1376 | if (local_got_refcounts[r_symndx] == -1) | |
4dc86686 | 1377 | local_got_refcounts[r_symndx] = 1; |
30667bf3 AM |
1378 | else |
1379 | local_got_refcounts[r_symndx] += 1; | |
1380 | } | |
1381 | } | |
1382 | ||
1383 | if (need_entry & NEED_PLT) | |
1384 | { | |
1385 | /* If we are creating a shared library, and this is a reloc | |
1386 | against a weak symbol or a global symbol in a dynamic | |
1387 | object, then we will be creating an import stub and a | |
1388 | .plt entry for the symbol. Similarly, on a normal link | |
1389 | to symbols defined in a dynamic object we'll need the | |
1390 | import stub and a .plt entry. We don't know yet whether | |
1391 | the symbol is defined or not, so make an entry anyway and | |
1392 | clean up later in adjust_dynamic_symbol. */ | |
1393 | if ((sec->flags & SEC_ALLOC) != 0) | |
1394 | { | |
74d1c347 | 1395 | if (h != NULL) |
30667bf3 | 1396 | { |
74d1c347 AM |
1397 | if (h->elf.plt.refcount == -1) |
1398 | { | |
1399 | h->elf.plt.refcount = 1; | |
1400 | h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
1401 | } | |
1402 | else | |
1403 | h->elf.plt.refcount += 1; | |
1404 | ||
36605136 AM |
1405 | /* If this .plt entry is for a plabel, mark it so |
1406 | that adjust_dynamic_symbol will keep the entry | |
1407 | even if it appears to be local. */ | |
74d1c347 AM |
1408 | if (need_entry & PLT_PLABEL) |
1409 | h->plabel = 1; | |
1410 | } | |
1411 | else if (need_entry & PLT_PLABEL) | |
1412 | { | |
68fb2e56 | 1413 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 AM |
1414 | |
1415 | if (local_got_refcounts == NULL) | |
1416 | { | |
dc810e39 | 1417 | bfd_size_type size; |
74d1c347 AM |
1418 | |
1419 | /* Allocate space for local got offsets and local | |
1420 | plt offsets. */ | |
dc810e39 AM |
1421 | size = symtab_hdr->sh_info; |
1422 | size *= 2 * sizeof (bfd_signed_vma); | |
74d1c347 AM |
1423 | local_got_refcounts = ((bfd_signed_vma *) |
1424 | bfd_alloc (abfd, size)); | |
1425 | if (local_got_refcounts == NULL) | |
1426 | return false; | |
1427 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
dc810e39 | 1428 | memset (local_got_refcounts, -1, (size_t) size); |
74d1c347 | 1429 | } |
68fb2e56 AM |
1430 | local_plt_refcounts = (local_got_refcounts |
1431 | + symtab_hdr->sh_info); | |
1432 | if (local_plt_refcounts[r_symndx] == -1) | |
1433 | local_plt_refcounts[r_symndx] = 1; | |
74d1c347 | 1434 | else |
68fb2e56 | 1435 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1436 | } |
30667bf3 AM |
1437 | } |
1438 | } | |
1439 | ||
98ceb8ce | 1440 | if (need_entry & NEED_DYNREL) |
30667bf3 AM |
1441 | { |
1442 | /* Flag this symbol as having a non-got, non-plt reference | |
1443 | so that we generate copy relocs if it turns out to be | |
1444 | dynamic. */ | |
446f2863 AM |
1445 | if (need_entry == NEED_DYNREL |
1446 | && h != NULL | |
1447 | && !info->shared | |
1448 | && (sec->flags & SEC_READONLY) != 0) | |
30667bf3 AM |
1449 | h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; |
1450 | ||
1451 | /* If we are creating a shared library then we need to copy | |
1452 | the reloc into the shared library. However, if we are | |
1453 | linking with -Bsymbolic, we need only copy absolute | |
1454 | relocs or relocs against symbols that are not defined in | |
1455 | an object we are including in the link. PC- or DP- or | |
1456 | DLT-relative relocs against any local sym or global sym | |
1457 | with DEF_REGULAR set, can be discarded. At this point we | |
1458 | have not seen all the input files, so it is possible that | |
1459 | DEF_REGULAR is not set now but will be set later (it is | |
1460 | never cleared). We account for that possibility below by | |
98ceb8ce | 1461 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1462 | hash table entry. |
1463 | ||
1464 | A similar situation to the -Bsymbolic case occurs when | |
1465 | creating shared libraries and symbol visibility changes | |
1466 | render the symbol local. | |
1467 | ||
1468 | As it turns out, all the relocs we will be creating here | |
1469 | are absolute, so we cannot remove them on -Bsymbolic | |
1470 | links or visibility changes anyway. A STUB_REL reloc | |
1471 | is absolute too, as in that case it is the reloc in the | |
1472 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1473 | reloc in the branch. |
1474 | ||
1475 | If on the other hand, we are creating an executable, we | |
1476 | may need to keep relocations for symbols satisfied by a | |
1477 | dynamic library if we manage to avoid copy relocs for the | |
1478 | symbol. */ | |
446f2863 AM |
1479 | if ((info->shared |
1480 | && (sec->flags & SEC_ALLOC) != 0 | |
1481 | && (IS_ABSOLUTE_RELOC (r_type) | |
1482 | || (h != NULL | |
1483 | && (!info->symbolic | |
1484 | || h->elf.root.type == bfd_link_hash_defweak | |
1485 | || (h->elf.elf_link_hash_flags | |
1486 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1487 | || (!info->shared | |
1488 | && (sec->flags & SEC_ALLOC) != 0 | |
1489 | && h != NULL | |
1490 | && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
1491 | && (h->elf.root.type == bfd_link_hash_defweak | |
1492 | || (h->elf.elf_link_hash_flags | |
1493 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
30667bf3 | 1494 | { |
30667bf3 AM |
1495 | /* Create a reloc section in dynobj and make room for |
1496 | this reloc. */ | |
98ceb8ce | 1497 | if (sreloc == NULL) |
30667bf3 AM |
1498 | { |
1499 | char *name; | |
1500 | ||
1501 | if (dynobj == NULL) | |
74d1c347 | 1502 | hplink->root.dynobj = dynobj = abfd; |
30667bf3 | 1503 | |
98ceb8ce AM |
1504 | name = (bfd_elf_string_from_elf_section |
1505 | (abfd, | |
1506 | elf_elfheader (abfd)->e_shstrndx, | |
1507 | elf_section_data (sec)->rel_hdr.sh_name)); | |
30667bf3 AM |
1508 | if (name == NULL) |
1509 | { | |
1510 | (*_bfd_error_handler) | |
1511 | (_("Could not find relocation section for %s"), | |
1512 | sec->name); | |
1513 | bfd_set_error (bfd_error_bad_value); | |
1514 | return false; | |
1515 | } | |
1516 | ||
98ceb8ce AM |
1517 | sreloc = bfd_get_section_by_name (dynobj, name); |
1518 | if (sreloc == NULL) | |
30667bf3 AM |
1519 | { |
1520 | flagword flags; | |
1521 | ||
98ceb8ce | 1522 | sreloc = bfd_make_section (dynobj, name); |
30667bf3 AM |
1523 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1524 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1525 | if ((sec->flags & SEC_ALLOC) != 0) | |
1526 | flags |= SEC_ALLOC | SEC_LOAD; | |
98ceb8ce AM |
1527 | if (sreloc == NULL |
1528 | || !bfd_set_section_flags (dynobj, sreloc, flags) | |
1529 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) | |
30667bf3 AM |
1530 | return false; |
1531 | } | |
30667bf3 | 1532 | |
98ceb8ce | 1533 | elf_section_data (sec)->sreloc = sreloc; |
30667bf3 AM |
1534 | } |
1535 | ||
98ceb8ce AM |
1536 | /* If this is a global symbol, we count the number of |
1537 | relocations we need for this symbol. */ | |
1538 | if (h != NULL) | |
30667bf3 | 1539 | { |
98ceb8ce | 1540 | struct elf32_hppa_dyn_reloc_entry *p; |
30667bf3 | 1541 | |
98ceb8ce AM |
1542 | p = h->dyn_relocs; |
1543 | if (p == NULL || p->sec != sec) | |
30667bf3 | 1544 | { |
98ceb8ce AM |
1545 | p = ((struct elf32_hppa_dyn_reloc_entry *) |
1546 | bfd_alloc (dynobj, (bfd_size_type) sizeof *p)); | |
30667bf3 | 1547 | if (p == NULL) |
98ceb8ce AM |
1548 | return false; |
1549 | p->next = h->dyn_relocs; | |
1550 | h->dyn_relocs = p; | |
1551 | p->sec = sec; | |
1552 | p->count = 0; | |
1553 | #if RELATIVE_DYNRELOCS | |
1554 | p->relative_count = 0; | |
1555 | #endif | |
30667bf3 | 1556 | } |
98ceb8ce AM |
1557 | |
1558 | p->count += 1; | |
1559 | #if RELATIVE_DYNRELOCS | |
1560 | if (!IS_ABSOLUTE_RELOC (rtype)) | |
1561 | p->relative_count += 1; | |
1562 | #endif | |
1563 | } | |
1564 | else | |
1565 | { | |
1566 | /* Track dynamic relocs needed for local syms too. */ | |
1567 | elf_section_data (sec)->local_dynrel += 1; | |
30667bf3 AM |
1568 | } |
1569 | } | |
1570 | } | |
1571 | } | |
edd21aca AM |
1572 | |
1573 | return true; | |
1574 | } | |
1575 | ||
30667bf3 AM |
1576 | /* Return the section that should be marked against garbage collection |
1577 | for a given relocation. */ | |
1578 | ||
1579 | static asection * | |
1580 | elf32_hppa_gc_mark_hook (abfd, info, rel, h, sym) | |
1581 | bfd *abfd; | |
1582 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1583 | Elf_Internal_Rela *rel; | |
1584 | struct elf_link_hash_entry *h; | |
1585 | Elf_Internal_Sym *sym; | |
1586 | { | |
1587 | if (h != NULL) | |
1588 | { | |
1589 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1590 | { | |
1591 | case R_PARISC_GNU_VTINHERIT: | |
1592 | case R_PARISC_GNU_VTENTRY: | |
1593 | break; | |
1594 | ||
1595 | default: | |
1596 | switch (h->root.type) | |
1597 | { | |
1598 | case bfd_link_hash_defined: | |
1599 | case bfd_link_hash_defweak: | |
1600 | return h->root.u.def.section; | |
1601 | ||
1602 | case bfd_link_hash_common: | |
1603 | return h->root.u.c.p->section; | |
1604 | ||
1605 | default: | |
1606 | break; | |
1607 | } | |
1608 | } | |
1609 | } | |
1610 | else | |
1611 | { | |
1612 | if (!(elf_bad_symtab (abfd) | |
1613 | && ELF_ST_BIND (sym->st_info) != STB_LOCAL) | |
1614 | && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) | |
1615 | && sym->st_shndx != SHN_COMMON)) | |
1616 | { | |
1617 | return bfd_section_from_elf_index (abfd, sym->st_shndx); | |
1618 | } | |
1619 | } | |
1620 | ||
1621 | return NULL; | |
1622 | } | |
1623 | ||
30667bf3 AM |
1624 | /* Update the got and plt entry reference counts for the section being |
1625 | removed. */ | |
edd21aca AM |
1626 | |
1627 | static boolean | |
30667bf3 AM |
1628 | elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs) |
1629 | bfd *abfd; | |
1630 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1631 | asection *sec; | |
1632 | const Elf_Internal_Rela *relocs; | |
edd21aca | 1633 | { |
30667bf3 AM |
1634 | Elf_Internal_Shdr *symtab_hdr; |
1635 | struct elf_link_hash_entry **sym_hashes; | |
1636 | bfd_signed_vma *local_got_refcounts; | |
74d1c347 | 1637 | bfd_signed_vma *local_plt_refcounts; |
30667bf3 AM |
1638 | const Elf_Internal_Rela *rel, *relend; |
1639 | unsigned long r_symndx; | |
1640 | struct elf_link_hash_entry *h; | |
74d1c347 | 1641 | struct elf32_hppa_link_hash_table *hplink; |
30667bf3 | 1642 | bfd *dynobj; |
30667bf3 | 1643 | |
98ceb8ce AM |
1644 | elf_section_data (sec)->local_dynrel = 0; |
1645 | ||
30667bf3 AM |
1646 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1647 | sym_hashes = elf_sym_hashes (abfd); | |
1648 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
74d1c347 AM |
1649 | local_plt_refcounts = local_got_refcounts; |
1650 | if (local_plt_refcounts != NULL) | |
1651 | local_plt_refcounts += symtab_hdr->sh_info; | |
1652 | hplink = hppa_link_hash_table (info); | |
1653 | dynobj = hplink->root.dynobj; | |
30667bf3 AM |
1654 | if (dynobj == NULL) |
1655 | return true; | |
1656 | ||
30667bf3 AM |
1657 | relend = relocs + sec->reloc_count; |
1658 | for (rel = relocs; rel < relend; rel++) | |
1659 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1660 | { | |
1661 | case R_PARISC_DLTIND14F: | |
1662 | case R_PARISC_DLTIND14R: | |
1663 | case R_PARISC_DLTIND21L: | |
1664 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1665 | if (r_symndx >= symtab_hdr->sh_info) | |
1666 | { | |
1667 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1668 | if (h->got.refcount > 0) | |
4dc86686 | 1669 | h->got.refcount -= 1; |
30667bf3 AM |
1670 | } |
1671 | else if (local_got_refcounts != NULL) | |
1672 | { | |
1673 | if (local_got_refcounts[r_symndx] > 0) | |
4dc86686 | 1674 | local_got_refcounts[r_symndx] -= 1; |
30667bf3 AM |
1675 | } |
1676 | break; | |
edd21aca | 1677 | |
30667bf3 AM |
1678 | case R_PARISC_PCREL12F: |
1679 | case R_PARISC_PCREL17C: | |
1680 | case R_PARISC_PCREL17F: | |
1681 | case R_PARISC_PCREL22F: | |
1682 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1683 | if (r_symndx >= symtab_hdr->sh_info) | |
1684 | { | |
1685 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1686 | if (h->plt.refcount > 0) | |
1687 | h->plt.refcount -= 1; | |
1688 | } | |
1689 | break; | |
edd21aca | 1690 | |
74d1c347 AM |
1691 | case R_PARISC_PLABEL14R: |
1692 | case R_PARISC_PLABEL21L: | |
1693 | case R_PARISC_PLABEL32: | |
1694 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1695 | if (r_symndx >= symtab_hdr->sh_info) | |
1696 | { | |
98ceb8ce AM |
1697 | struct elf32_hppa_link_hash_entry *eh; |
1698 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1699 | struct elf32_hppa_dyn_reloc_entry *p; | |
1700 | ||
74d1c347 | 1701 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
98ceb8ce | 1702 | |
74d1c347 AM |
1703 | if (h->plt.refcount > 0) |
1704 | h->plt.refcount -= 1; | |
98ceb8ce AM |
1705 | |
1706 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1707 | ||
1708 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1709 | if (p->sec == sec) | |
1710 | { | |
1711 | #if RELATIVE_DYNRELOCS | |
1712 | if (!IS_ABSOLUTE_RELOC (rtype)) | |
1713 | p->relative_count -= 1; | |
1714 | #endif | |
1715 | p->count -= 1; | |
1716 | if (p->count == 0) | |
1717 | *pp = p->next; | |
1718 | break; | |
1719 | } | |
74d1c347 AM |
1720 | } |
1721 | else if (local_plt_refcounts != NULL) | |
1722 | { | |
1723 | if (local_plt_refcounts[r_symndx] > 0) | |
1724 | local_plt_refcounts[r_symndx] -= 1; | |
1725 | } | |
1726 | break; | |
1727 | ||
98ceb8ce AM |
1728 | case R_PARISC_DIR32: |
1729 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1730 | if (r_symndx >= symtab_hdr->sh_info) | |
1731 | { | |
1732 | struct elf32_hppa_link_hash_entry *eh; | |
1733 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1734 | struct elf32_hppa_dyn_reloc_entry *p; | |
1735 | ||
1736 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1737 | ||
1738 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1739 | ||
1740 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1741 | if (p->sec == sec) | |
1742 | { | |
1743 | #if RELATIVE_DYNRELOCS | |
1744 | if (!IS_ABSOLUTE_RELOC (R_PARISC_DIR32)) | |
1745 | p->relative_count -= 1; | |
1746 | #endif | |
1747 | p->count -= 1; | |
1748 | if (p->count == 0) | |
1749 | *pp = p->next; | |
1750 | break; | |
1751 | } | |
1752 | } | |
1753 | break; | |
1754 | ||
30667bf3 AM |
1755 | default: |
1756 | break; | |
1757 | } | |
252b5132 | 1758 | |
252b5132 RH |
1759 | return true; |
1760 | } | |
1761 | ||
74d1c347 AM |
1762 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1763 | plabels. */ | |
1764 | ||
1765 | static void | |
1766 | elf32_hppa_hide_symbol (info, h) | |
1767 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1768 | struct elf_link_hash_entry *h; | |
1769 | { | |
5fba655a L |
1770 | if ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0) |
1771 | h->dynindx = -1; | |
74d1c347 AM |
1772 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel) |
1773 | { | |
1774 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1775 | h->plt.offset = (bfd_vma) -1; | |
1776 | } | |
1777 | } | |
1778 | ||
4dc86686 AM |
1779 | /* This is the condition under which elf32_hppa_finish_dynamic_symbol |
1780 | will be called from elflink.h. If elflink.h doesn't call our | |
1781 | finish_dynamic_symbol routine, we'll need to do something about | |
1782 | initializing any .plt and .got entries in elf32_hppa_relocate_section. */ | |
1783 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
1784 | ((DYN) \ | |
1785 | && ((INFO)->shared \ | |
1786 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
1787 | && ((H)->dynindx != -1 \ | |
1788 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
1789 | ||
30667bf3 AM |
1790 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1791 | regular object. The current definition is in some section of the | |
1792 | dynamic object, but we're not including those sections. We have to | |
1793 | change the definition to something the rest of the link can | |
1794 | understand. */ | |
252b5132 | 1795 | |
30667bf3 AM |
1796 | static boolean |
1797 | elf32_hppa_adjust_dynamic_symbol (info, h) | |
1798 | struct bfd_link_info *info; | |
1799 | struct elf_link_hash_entry *h; | |
252b5132 | 1800 | { |
30667bf3 AM |
1801 | bfd *dynobj; |
1802 | struct elf32_hppa_link_hash_table *hplink; | |
1803 | asection *s; | |
1804 | ||
30667bf3 | 1805 | hplink = hppa_link_hash_table (info); |
74d1c347 | 1806 | dynobj = hplink->root.dynobj; |
30667bf3 AM |
1807 | |
1808 | /* If this is a function, put it in the procedure linkage table. We | |
1809 | will fill in the contents of the procedure linkage table later, | |
1810 | when we know the address of the .got section. */ | |
1811 | if (h->type == STT_FUNC | |
1812 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1813 | { | |
12cca0d2 AM |
1814 | if (!info->shared |
1815 | && h->plt.refcount > 0 | |
1816 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1817 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0) | |
1818 | { | |
1819 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; | |
1820 | } | |
1821 | ||
30667bf3 AM |
1822 | if (h->plt.refcount <= 0 |
1823 | || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1824 | && h->root.type != bfd_link_hash_defweak | |
74d1c347 | 1825 | && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel |
30667bf3 AM |
1826 | && (!info->shared || info->symbolic))) |
1827 | { | |
1828 | /* The .plt entry is not needed when: | |
1829 | a) Garbage collection has removed all references to the | |
1830 | symbol, or | |
1831 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1832 | object, and it's not a weak definition, nor is the symbol |
1833 | used by a plabel relocation. Either this object is the | |
1834 | application or we are doing a shared symbolic link. */ | |
1835 | ||
1836 | /* As a special sop to the hppa ABI, we keep a .plt entry | |
1837 | for functions in sections containing PIC code. */ | |
12cca0d2 AM |
1838 | if (((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call) |
1839 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; | |
30667bf3 AM |
1840 | else |
1841 | { | |
1842 | h->plt.offset = (bfd_vma) -1; | |
1843 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
30667bf3 | 1844 | } |
30667bf3 | 1845 | } |
4dc86686 | 1846 | |
30667bf3 AM |
1847 | return true; |
1848 | } | |
edd21aca | 1849 | |
30667bf3 AM |
1850 | /* If this is a weak symbol, and there is a real definition, the |
1851 | processor independent code will have arranged for us to see the | |
1852 | real definition first, and we can just use the same value. */ | |
1853 | if (h->weakdef != NULL) | |
edd21aca | 1854 | { |
49e9d0d3 AM |
1855 | if (h->weakdef->root.type != bfd_link_hash_defined |
1856 | && h->weakdef->root.type != bfd_link_hash_defweak) | |
1857 | abort (); | |
30667bf3 AM |
1858 | h->root.u.def.section = h->weakdef->root.u.def.section; |
1859 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
1860 | return true; | |
1861 | } | |
edd21aca | 1862 | |
30667bf3 AM |
1863 | /* This is a reference to a symbol defined by a dynamic object which |
1864 | is not a function. */ | |
1865 | ||
1866 | /* If we are creating a shared library, we must presume that the | |
1867 | only references to the symbol are via the global offset table. | |
1868 | For such cases we need not do anything here; the relocations will | |
1869 | be handled correctly by relocate_section. */ | |
1870 | if (info->shared) | |
1871 | return true; | |
1872 | ||
1873 | /* If there are no references to this symbol that do not use the | |
1874 | GOT, we don't need to generate a copy reloc. */ | |
1875 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
1876 | return true; | |
1877 | ||
1878 | /* We must allocate the symbol in our .dynbss section, which will | |
1879 | become part of the .bss section of the executable. There will be | |
1880 | an entry for this symbol in the .dynsym section. The dynamic | |
1881 | object will contain position independent code, so all references | |
1882 | from the dynamic object to this symbol will go through the global | |
1883 | offset table. The dynamic linker will use the .dynsym entry to | |
1884 | determine the address it must put in the global offset table, so | |
1885 | both the dynamic object and the regular object will refer to the | |
1886 | same memory location for the variable. */ | |
1887 | ||
1888 | s = hplink->sdynbss; | |
1889 | ||
1890 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1891 | copy the initial value out of the dynamic object and into the | |
1892 | runtime process image. We need to remember the offset into the | |
1893 | .rela.bss section we are going to use. */ | |
1894 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
1895 | { | |
1896 | asection *srel; | |
1897 | ||
1898 | srel = hplink->srelbss; | |
1899 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
1900 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; | |
edd21aca | 1901 | } |
252b5132 | 1902 | |
30667bf3 AM |
1903 | { |
1904 | /* We need to figure out the alignment required for this symbol. I | |
1905 | have no idea how other ELF linkers handle this. */ | |
1906 | unsigned int power_of_two; | |
1907 | ||
1908 | power_of_two = bfd_log2 (h->size); | |
1909 | if (power_of_two > 3) | |
1910 | power_of_two = 3; | |
1911 | ||
1912 | /* Apply the required alignment. */ | |
1913 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1914 | (bfd_size_type) (1 << power_of_two)); | |
1915 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) | |
1916 | { | |
1917 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
1918 | return false; | |
1919 | } | |
1920 | } | |
1921 | /* Define the symbol as being at this point in the section. */ | |
1922 | h->root.u.def.section = s; | |
1923 | h->root.u.def.value = s->_raw_size; | |
edd21aca | 1924 | |
30667bf3 AM |
1925 | /* Increment the section size to make room for the symbol. */ |
1926 | s->_raw_size += h->size; | |
252b5132 RH |
1927 | |
1928 | return true; | |
1929 | } | |
1930 | ||
30667bf3 AM |
1931 | /* Called via elf_link_hash_traverse to create .plt entries for an |
1932 | application that uses statically linked PIC functions. Similar to | |
1933 | the first part of elf32_hppa_adjust_dynamic_symbol. */ | |
252b5132 | 1934 | |
30667bf3 AM |
1935 | static boolean |
1936 | hppa_handle_PIC_calls (h, inf) | |
1937 | struct elf_link_hash_entry *h; | |
4dc86686 | 1938 | PTR inf ATTRIBUTE_UNUSED; |
252b5132 | 1939 | { |
30667bf3 AM |
1940 | if (! (h->plt.refcount > 0 |
1941 | && (h->root.type == bfd_link_hash_defined | |
1942 | || h->root.type == bfd_link_hash_defweak) | |
1943 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)) | |
252b5132 | 1944 | { |
30667bf3 AM |
1945 | h->plt.offset = (bfd_vma) -1; |
1946 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1947 | return true; | |
252b5132 RH |
1948 | } |
1949 | ||
74d1c347 | 1950 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
12cca0d2 | 1951 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; |
30667bf3 | 1952 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
edd21aca | 1953 | |
4dc86686 AM |
1954 | return true; |
1955 | } | |
1956 | ||
1957 | /* Allocate space in .plt, .got and associated reloc sections for | |
1958 | global syms. */ | |
1959 | ||
1960 | static boolean | |
98ceb8ce | 1961 | allocate_dynrelocs (h, inf) |
4dc86686 AM |
1962 | struct elf_link_hash_entry *h; |
1963 | PTR inf; | |
1964 | { | |
1965 | struct bfd_link_info *info; | |
1966 | struct elf32_hppa_link_hash_table *hplink; | |
1967 | asection *s; | |
446f2863 | 1968 | struct elf32_hppa_link_hash_entry *eh; |
98ceb8ce | 1969 | struct elf32_hppa_dyn_reloc_entry *p; |
4dc86686 | 1970 | |
73a74a62 AM |
1971 | if (h->root.type == bfd_link_hash_indirect |
1972 | || h->root.type == bfd_link_hash_warning) | |
1973 | return true; | |
1974 | ||
30667bf3 | 1975 | info = (struct bfd_link_info *) inf; |
30667bf3 | 1976 | hplink = hppa_link_hash_table (info); |
4dc86686 AM |
1977 | if ((hplink->root.dynamic_sections_created |
1978 | && h->plt.refcount > 0) | |
1979 | || ((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
1980 | { | |
446f2863 AM |
1981 | /* Make sure this symbol is output as a dynamic symbol. |
1982 | Undefined weak syms won't yet be marked as dynamic. */ | |
1983 | if (h->dynindx == -1 | |
1984 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
1985 | && h->type != STT_PARISC_MILLI | |
1986 | && !((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
1987 | { | |
1988 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
1989 | return false; | |
1990 | } | |
1991 | ||
4dc86686 AM |
1992 | /* Make an entry in the .plt section. */ |
1993 | s = hplink->splt; | |
1994 | h->plt.offset = s->_raw_size; | |
1995 | if (PLABEL_PLT_ENTRY_SIZE != PLT_ENTRY_SIZE | |
1996 | && ((struct elf32_hppa_link_hash_entry *) h)->plabel | |
1997 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
1998 | { | |
1999 | /* Add some extra space for the dynamic linker to use. */ | |
2000 | s->_raw_size += PLABEL_PLT_ENTRY_SIZE; | |
2001 | } | |
2002 | else | |
2003 | s->_raw_size += PLT_ENTRY_SIZE; | |
2004 | ||
2005 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call | |
2006 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
2007 | { | |
2008 | /* We also need to make an entry in the .rela.plt section. */ | |
2009 | hplink->srelplt->_raw_size += sizeof (Elf32_External_Rela); | |
2010 | hplink->need_plt_stub = 1; | |
2011 | } | |
2012 | } | |
2013 | else | |
2014 | { | |
2015 | h->plt.offset = (bfd_vma) -1; | |
2016 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2017 | } | |
edd21aca | 2018 | |
4dc86686 AM |
2019 | if (h->got.refcount > 0) |
2020 | { | |
2021 | boolean dyn; | |
2022 | ||
446f2863 AM |
2023 | /* Make sure this symbol is output as a dynamic symbol. |
2024 | Undefined weak syms won't yet be marked as dynamic. */ | |
2025 | if (h->dynindx == -1 | |
2026 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2027 | && h->type != STT_PARISC_MILLI) | |
2028 | { | |
2029 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2030 | return false; | |
2031 | } | |
2032 | ||
4dc86686 AM |
2033 | s = hplink->sgot; |
2034 | h->got.offset = s->_raw_size; | |
2035 | s->_raw_size += GOT_ENTRY_SIZE; | |
2036 | dyn = hplink->root.dynamic_sections_created; | |
2037 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)) | |
2038 | hplink->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
2039 | } | |
2040 | else | |
2041 | h->got.offset = (bfd_vma) -1; | |
30667bf3 | 2042 | |
446f2863 | 2043 | eh = (struct elf32_hppa_link_hash_entry *) h; |
98ceb8ce | 2044 | if (eh->dyn_relocs == NULL) |
446f2863 | 2045 | return true; |
30667bf3 | 2046 | |
98ceb8ce AM |
2047 | /* If this is a -Bsymbolic shared link, then we need to discard all |
2048 | space allocated for dynamic pc-relative relocs against symbols | |
2049 | defined in a regular object. For the normal shared case, discard | |
2050 | space for relocs that have become local due to symbol visibility | |
2051 | changes. */ | |
2052 | if (info->shared) | |
446f2863 | 2053 | { |
98ceb8ce AM |
2054 | #if RELATIVE_DYNRELOCS |
2055 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
2056 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
2057 | || info->symbolic)) | |
446f2863 | 2058 | { |
98ceb8ce | 2059 | struct elf32_hppa_dyn_reloc_entry **pp; |
30667bf3 | 2060 | |
98ceb8ce AM |
2061 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
2062 | { | |
2063 | p->count -= p->relative_count; | |
2064 | p->relative_count = 0; | |
2065 | if (p->count == 0) | |
2066 | *pp = p->next; | |
2067 | else | |
2068 | pp = &p->next; | |
2069 | } | |
2070 | } | |
2071 | #endif | |
446f2863 | 2072 | } |
98ceb8ce | 2073 | else |
30667bf3 | 2074 | { |
98ceb8ce AM |
2075 | /* For the non-shared case, discard space for relocs against |
2076 | symbols which turn out to need copy relocs or are not | |
2077 | dynamic. */ | |
2078 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
2079 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2080 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
2081 | || (hplink->root.dynamic_sections_created | |
2082 | && (h->root.type == bfd_link_hash_undefweak | |
2083 | || h->root.type == bfd_link_hash_undefined)))) | |
2084 | { | |
2085 | /* Make sure this symbol is output as a dynamic symbol. | |
2086 | Undefined weak syms won't yet be marked as dynamic. */ | |
2087 | if (h->dynindx == -1 | |
2088 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2089 | && h->type != STT_PARISC_MILLI) | |
2090 | { | |
2091 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2092 | return false; | |
2093 | } | |
2094 | ||
2095 | /* If that succeeded, we know we'll be keeping all the | |
2096 | relocs. */ | |
2097 | if (h->dynindx != -1) | |
2098 | goto keep; | |
2099 | } | |
446f2863 | 2100 | |
98ceb8ce AM |
2101 | eh->dyn_relocs = NULL; |
2102 | return true; | |
2103 | ||
2104 | keep: | |
30667bf3 | 2105 | } |
30667bf3 | 2106 | |
98ceb8ce AM |
2107 | /* Finally, allocate space. */ |
2108 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
30667bf3 | 2109 | { |
98ceb8ce AM |
2110 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
2111 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2112 | } |
30667bf3 AM |
2113 | |
2114 | return true; | |
2115 | } | |
30667bf3 | 2116 | |
d5c73c2f AM |
2117 | /* This function is called via elf_link_hash_traverse to force |
2118 | millicode symbols local so they do not end up as globals in the | |
2119 | dynamic symbol table. We ought to be able to do this in | |
2120 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2121 | for all dynamic symbols. Arguably, this is a bug in | |
2122 | elf_adjust_dynamic_symbol. */ | |
2123 | ||
2124 | static boolean | |
2125 | clobber_millicode_symbols (h, info) | |
2126 | struct elf_link_hash_entry *h; | |
2127 | struct bfd_link_info *info; | |
2128 | { | |
8dea1268 AM |
2129 | /* We only want to remove these from the dynamic symbol table. |
2130 | Therefore we do not leave ELF_LINK_FORCED_LOCAL set. */ | |
d5c73c2f | 2131 | if (h->type == STT_PARISC_MILLI) |
e0522e89 AM |
2132 | { |
2133 | unsigned short oldflags = h->elf_link_hash_flags; | |
2134 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL; | |
2135 | elf32_hppa_hide_symbol (info, h); | |
2136 | h->elf_link_hash_flags &= ~ELF_LINK_FORCED_LOCAL; | |
2137 | h->elf_link_hash_flags |= oldflags & ELF_LINK_FORCED_LOCAL; | |
2138 | } | |
d5c73c2f AM |
2139 | return true; |
2140 | } | |
2141 | ||
98ceb8ce AM |
2142 | /* Find any dynamic relocs that apply to read-only sections. */ |
2143 | ||
2144 | static boolean | |
2145 | readonly_dynrelocs (h, inf) | |
2146 | struct elf_link_hash_entry *h; | |
2147 | PTR inf; | |
2148 | { | |
2149 | struct elf32_hppa_link_hash_entry *eh; | |
2150 | struct elf32_hppa_dyn_reloc_entry *p; | |
2151 | ||
2152 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
2153 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2154 | { | |
2155 | asection *s = p->sec->output_section; | |
2156 | ||
2157 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2158 | { | |
2159 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2160 | ||
2161 | info->flags |= DF_TEXTREL; | |
2162 | ||
2163 | /* Not an error, just cut short the traversal. */ | |
2164 | return false; | |
2165 | } | |
2166 | } | |
2167 | return true; | |
2168 | } | |
2169 | ||
30667bf3 AM |
2170 | /* Set the sizes of the dynamic sections. */ |
2171 | ||
2172 | static boolean | |
2173 | elf32_hppa_size_dynamic_sections (output_bfd, info) | |
98ceb8ce | 2174 | bfd *output_bfd ATTRIBUTE_UNUSED; |
30667bf3 AM |
2175 | struct bfd_link_info *info; |
2176 | { | |
2177 | struct elf32_hppa_link_hash_table *hplink; | |
2178 | bfd *dynobj; | |
98ceb8ce | 2179 | bfd *ibfd; |
30667bf3 AM |
2180 | asection *s; |
2181 | boolean relocs; | |
30667bf3 AM |
2182 | |
2183 | hplink = hppa_link_hash_table (info); | |
74d1c347 | 2184 | dynobj = hplink->root.dynobj; |
49e9d0d3 AM |
2185 | if (dynobj == NULL) |
2186 | abort (); | |
30667bf3 | 2187 | |
74d1c347 | 2188 | if (hplink->root.dynamic_sections_created) |
30667bf3 AM |
2189 | { |
2190 | /* Set the contents of the .interp section to the interpreter. */ | |
2191 | if (! info->shared) | |
2192 | { | |
2193 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
49e9d0d3 AM |
2194 | if (s == NULL) |
2195 | abort (); | |
30667bf3 AM |
2196 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; |
2197 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2198 | } | |
74d1c347 | 2199 | |
d5c73c2f AM |
2200 | /* Force millicode symbols local. */ |
2201 | elf_link_hash_traverse (&hplink->root, | |
2202 | clobber_millicode_symbols, | |
2203 | info); | |
68fb2e56 AM |
2204 | } |
2205 | else | |
2206 | { | |
2207 | /* Run through the function symbols, looking for any that are | |
2208 | PIC, and allocate space for the necessary .plt entries so | |
2209 | that %r19 will be set up. */ | |
2210 | if (! info->shared) | |
2211 | elf_link_hash_traverse (&hplink->root, | |
2212 | hppa_handle_PIC_calls, | |
2213 | info); | |
2214 | } | |
d5c73c2f | 2215 | |
98ceb8ce AM |
2216 | /* Set up .got and .plt offsets for local syms, and space for local |
2217 | dynamic relocs. */ | |
2218 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
68fb2e56 AM |
2219 | { |
2220 | bfd_signed_vma *local_got; | |
2221 | bfd_signed_vma *end_local_got; | |
2222 | bfd_signed_vma *local_plt; | |
2223 | bfd_signed_vma *end_local_plt; | |
2224 | bfd_size_type locsymcount; | |
2225 | Elf_Internal_Shdr *symtab_hdr; | |
2226 | asection *srel; | |
74d1c347 | 2227 | |
98ceb8ce | 2228 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2229 | continue; |
4dc86686 | 2230 | |
98ceb8ce AM |
2231 | for (s = ibfd->sections; s != NULL; s = s->next) |
2232 | { | |
2233 | bfd_size_type count = elf_section_data (s)->local_dynrel; | |
2234 | ||
2235 | if (count != 0) | |
2236 | { | |
2237 | srel = elf_section_data (s)->sreloc; | |
2238 | srel->_raw_size += count * sizeof (Elf32_External_Rela); | |
2239 | } | |
2240 | } | |
2241 | ||
2242 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2243 | if (!local_got) |
2244 | continue; | |
74d1c347 | 2245 | |
98ceb8ce | 2246 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2247 | locsymcount = symtab_hdr->sh_info; |
2248 | end_local_got = local_got + locsymcount; | |
2249 | s = hplink->sgot; | |
2250 | srel = hplink->srelgot; | |
2251 | for (; local_got < end_local_got; ++local_got) | |
2252 | { | |
2253 | if (*local_got > 0) | |
4dc86686 | 2254 | { |
68fb2e56 AM |
2255 | *local_got = s->_raw_size; |
2256 | s->_raw_size += GOT_ENTRY_SIZE; | |
2257 | if (info->shared) | |
2258 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
4dc86686 | 2259 | } |
68fb2e56 AM |
2260 | else |
2261 | *local_got = (bfd_vma) -1; | |
2262 | } | |
74d1c347 | 2263 | |
68fb2e56 AM |
2264 | local_plt = end_local_got; |
2265 | end_local_plt = local_plt + locsymcount; | |
2266 | if (! hplink->root.dynamic_sections_created) | |
2267 | { | |
2268 | /* Won't be used, but be safe. */ | |
2269 | for (; local_plt < end_local_plt; ++local_plt) | |
2270 | *local_plt = (bfd_vma) -1; | |
2271 | } | |
2272 | else | |
2273 | { | |
4dc86686 AM |
2274 | s = hplink->splt; |
2275 | srel = hplink->srelplt; | |
74d1c347 AM |
2276 | for (; local_plt < end_local_plt; ++local_plt) |
2277 | { | |
2278 | if (*local_plt > 0) | |
2279 | { | |
74d1c347 AM |
2280 | *local_plt = s->_raw_size; |
2281 | s->_raw_size += PLT_ENTRY_SIZE; | |
2282 | if (info->shared) | |
4dc86686 | 2283 | srel->_raw_size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2284 | } |
2285 | else | |
2286 | *local_plt = (bfd_vma) -1; | |
2287 | } | |
2288 | } | |
30667bf3 | 2289 | } |
30667bf3 | 2290 | |
98ceb8ce AM |
2291 | /* Allocate global sym .plt and .got entries, and space for global |
2292 | sym dynamic relocs. */ | |
2293 | elf_link_hash_traverse (&hplink->root, allocate_dynrelocs, (PTR) info); | |
30667bf3 AM |
2294 | |
2295 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2296 | determined the sizes of the various dynamic sections. Allocate | |
2297 | memory for them. */ | |
2298 | relocs = false; | |
30667bf3 AM |
2299 | for (s = dynobj->sections; s != NULL; s = s->next) |
2300 | { | |
30667bf3 AM |
2301 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2302 | continue; | |
2303 | ||
68fb2e56 AM |
2304 | if (s == hplink->splt) |
2305 | { | |
2306 | if (hplink->need_plt_stub) | |
2307 | { | |
2308 | /* Make space for the plt stub at the end of the .plt | |
2309 | section. We want this stub right at the end, up | |
2310 | against the .got section. */ | |
2311 | int gotalign = bfd_section_alignment (dynobj, hplink->sgot); | |
2312 | int pltalign = bfd_section_alignment (dynobj, s); | |
2313 | bfd_size_type mask; | |
30667bf3 | 2314 | |
68fb2e56 AM |
2315 | if (gotalign > pltalign) |
2316 | bfd_set_section_alignment (dynobj, s, gotalign); | |
2317 | mask = ((bfd_size_type) 1 << gotalign) - 1; | |
2318 | s->_raw_size = (s->_raw_size + sizeof (plt_stub) + mask) & ~mask; | |
2319 | } | |
2320 | } | |
2321 | else if (s == hplink->sgot) | |
2322 | ; | |
2323 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) | |
30667bf3 AM |
2324 | { |
2325 | if (s->_raw_size != 0) | |
2326 | { | |
30667bf3 AM |
2327 | /* Remember whether there are any reloc sections other |
2328 | than .rela.plt. */ | |
68fb2e56 | 2329 | if (s != hplink->srelplt) |
47d89dba AM |
2330 | relocs = true; |
2331 | ||
30667bf3 AM |
2332 | /* We use the reloc_count field as a counter if we need |
2333 | to copy relocs into the output file. */ | |
2334 | s->reloc_count = 0; | |
2335 | } | |
2336 | } | |
30667bf3 AM |
2337 | else |
2338 | { | |
2339 | /* It's not one of our sections, so don't allocate space. */ | |
2340 | continue; | |
2341 | } | |
2342 | ||
2343 | if (s->_raw_size == 0) | |
2344 | { | |
2345 | /* If we don't need this section, strip it from the | |
2346 | output file. This is mostly to handle .rela.bss and | |
2347 | .rela.plt. We must create both sections in | |
2348 | create_dynamic_sections, because they must be created | |
2349 | before the linker maps input sections to output | |
2350 | sections. The linker does that before | |
2351 | adjust_dynamic_symbol is called, and it is that | |
2352 | function which decides whether anything needs to go | |
2353 | into these sections. */ | |
2354 | _bfd_strip_section_from_output (info, s); | |
2355 | continue; | |
2356 | } | |
2357 | ||
2358 | /* Allocate memory for the section contents. Zero it, because | |
2359 | we may not fill in all the reloc sections. */ | |
2360 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); | |
2361 | if (s->contents == NULL && s->_raw_size != 0) | |
2362 | return false; | |
2363 | } | |
2364 | ||
74d1c347 | 2365 | if (hplink->root.dynamic_sections_created) |
30667bf3 AM |
2366 | { |
2367 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2368 | actually has nothing to do with the PLT, it is how we | |
2369 | communicate the LTP value of a load module to the dynamic | |
2370 | linker. */ | |
dc810e39 AM |
2371 | #define add_dynamic_entry(TAG, VAL) \ |
2372 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
2373 | ||
2374 | if (!add_dynamic_entry (DT_PLTGOT, 0)) | |
30667bf3 AM |
2375 | return false; |
2376 | ||
2377 | /* Add some entries to the .dynamic section. We fill in the | |
2378 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2379 | must add the entries now so that we get the correct size for | |
2380 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2381 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2382 | if (!info->shared) |
30667bf3 | 2383 | { |
dc810e39 | 2384 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
30667bf3 AM |
2385 | return false; |
2386 | } | |
2387 | ||
2388 | if (hplink->srelplt->_raw_size != 0) | |
2389 | { | |
dc810e39 AM |
2390 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
2391 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2392 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
30667bf3 AM |
2393 | return false; |
2394 | } | |
2395 | ||
2396 | if (relocs) | |
2397 | { | |
dc810e39 AM |
2398 | if (!add_dynamic_entry (DT_RELA, 0) |
2399 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2400 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
30667bf3 | 2401 | return false; |
30667bf3 | 2402 | |
98ceb8ce AM |
2403 | /* If any dynamic relocs apply to a read-only section, |
2404 | then we need a DT_TEXTREL entry. */ | |
2405 | elf_link_hash_traverse (&hplink->root, readonly_dynrelocs, (PTR) info); | |
2406 | ||
2407 | if ((info->flags & DF_TEXTREL) != 0) | |
2408 | { | |
2409 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
2410 | return false; | |
2411 | } | |
30667bf3 AM |
2412 | } |
2413 | } | |
dc810e39 | 2414 | #undef add_dynamic_entry |
30667bf3 AM |
2415 | |
2416 | return true; | |
2417 | } | |
2418 | ||
30667bf3 AM |
2419 | /* External entry points for sizing and building linker stubs. */ |
2420 | ||
2421 | /* Determine and set the size of the stub section for a final link. | |
2422 | ||
2423 | The basic idea here is to examine all the relocations looking for | |
2424 | PC-relative calls to a target that is unreachable with a "bl" | |
2425 | instruction. */ | |
2426 | ||
2427 | boolean | |
47d89dba | 2428 | elf32_hppa_size_stubs (output_bfd, stub_bfd, info, multi_subspace, group_size, |
30667bf3 | 2429 | add_stub_section, layout_sections_again) |
25f72752 | 2430 | bfd *output_bfd; |
30667bf3 | 2431 | bfd *stub_bfd; |
30667bf3 | 2432 | struct bfd_link_info *info; |
25f72752 | 2433 | boolean multi_subspace; |
47d89dba | 2434 | bfd_signed_vma group_size; |
30667bf3 AM |
2435 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); |
2436 | void (*layout_sections_again) PARAMS ((void)); | |
2437 | { | |
2438 | bfd *input_bfd; | |
2439 | asection *section; | |
25f72752 | 2440 | asection **input_list, **list; |
30667bf3 | 2441 | Elf_Internal_Sym *local_syms, **all_local_syms; |
25f72752 AM |
2442 | unsigned int bfd_indx, bfd_count; |
2443 | int top_id, top_index; | |
30667bf3 | 2444 | struct elf32_hppa_link_hash_table *hplink; |
47d89dba AM |
2445 | bfd_size_type stub_group_size; |
2446 | boolean stubs_always_before_branch; | |
30667bf3 | 2447 | boolean stub_changed = 0; |
25f72752 | 2448 | boolean ret = 0; |
dc810e39 | 2449 | bfd_size_type amt; |
30667bf3 AM |
2450 | |
2451 | hplink = hppa_link_hash_table (info); | |
2452 | ||
2453 | /* Stash our params away. */ | |
2454 | hplink->stub_bfd = stub_bfd; | |
2455 | hplink->multi_subspace = multi_subspace; | |
2456 | hplink->add_stub_section = add_stub_section; | |
2457 | hplink->layout_sections_again = layout_sections_again; | |
47d89dba AM |
2458 | stubs_always_before_branch = group_size < 0; |
2459 | if (group_size < 0) | |
2460 | stub_group_size = -group_size; | |
2461 | else | |
2462 | stub_group_size = group_size; | |
2463 | if (stub_group_size == 1) | |
2464 | { | |
2465 | /* Default values. */ | |
2466 | stub_group_size = 8000000; | |
2467 | if (hplink->has_17bit_branch || hplink->multi_subspace) | |
2468 | stub_group_size = 250000; | |
2469 | if (hplink->has_12bit_branch) | |
2470 | stub_group_size = 7812; | |
2471 | } | |
30667bf3 | 2472 | |
1badb539 AM |
2473 | /* Count the number of input BFDs and find the top input section id. */ |
2474 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2475 | input_bfd != NULL; |
2476 | input_bfd = input_bfd->link_next) | |
2477 | { | |
2478 | bfd_count += 1; | |
25f72752 AM |
2479 | for (section = input_bfd->sections; |
2480 | section != NULL; | |
2481 | section = section->next) | |
2482 | { | |
2483 | if (top_id < section->id) | |
2484 | top_id = section->id; | |
2485 | } | |
30667bf3 AM |
2486 | } |
2487 | ||
dc810e39 AM |
2488 | amt = sizeof (struct map_stub) * (top_id + 1); |
2489 | hplink->stub_group = (struct map_stub *) bfd_zmalloc (amt); | |
25f72752 | 2490 | if (hplink->stub_group == NULL) |
30667bf3 AM |
2491 | return false; |
2492 | ||
1badb539 AM |
2493 | /* Make a list of input sections for each output section included in |
2494 | the link. | |
2495 | ||
2496 | We can't use output_bfd->section_count here to find the top output | |
2497 | section index as some sections may have been removed, and | |
2498 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
2499 | for (section = output_bfd->sections, top_index = 0; | |
2500 | section != NULL; | |
2501 | section = section->next) | |
2502 | { | |
2503 | if (top_index < section->index) | |
2504 | top_index = section->index; | |
2505 | } | |
2506 | ||
dc810e39 AM |
2507 | amt = sizeof (asection *) * (top_index + 1); |
2508 | input_list = (asection **) bfd_malloc (amt); | |
25f72752 AM |
2509 | if (input_list == NULL) |
2510 | return false; | |
2511 | ||
1badb539 AM |
2512 | /* For sections we aren't interested in, mark their entries with a |
2513 | value we can check later. */ | |
2514 | list = input_list + top_index; | |
2515 | do | |
2516 | *list = bfd_abs_section_ptr; | |
2517 | while (list-- != input_list); | |
2518 | ||
2519 | for (section = output_bfd->sections; | |
2520 | section != NULL; | |
2521 | section = section->next) | |
2522 | { | |
47d89dba | 2523 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2524 | input_list[section->index] = NULL; |
2525 | } | |
2526 | ||
2527 | /* Now actually build the lists. */ | |
25f72752 AM |
2528 | for (input_bfd = info->input_bfds; |
2529 | input_bfd != NULL; | |
2530 | input_bfd = input_bfd->link_next) | |
2531 | { | |
2532 | for (section = input_bfd->sections; | |
2533 | section != NULL; | |
2534 | section = section->next) | |
2535 | { | |
2536 | if (section->output_section != NULL | |
1badb539 AM |
2537 | && section->output_section->owner == output_bfd |
2538 | && section->output_section->index <= top_index) | |
25f72752 AM |
2539 | { |
2540 | list = input_list + section->output_section->index; | |
1badb539 AM |
2541 | if (*list != bfd_abs_section_ptr) |
2542 | { | |
2543 | /* Steal the link_sec pointer for our list. */ | |
25f72752 | 2544 | #define PREV_SEC(sec) (hplink->stub_group[(sec)->id].link_sec) |
1badb539 AM |
2545 | /* This happens to make the list in reverse order, |
2546 | which is what we want. */ | |
2547 | PREV_SEC (section) = *list; | |
2548 | *list = section; | |
2549 | } | |
25f72752 AM |
2550 | } |
2551 | } | |
2552 | } | |
2553 | ||
2554 | /* See whether we can group stub sections together. Grouping stub | |
2555 | sections may result in fewer stubs. More importantly, we need to | |
2556 | put all .init* and .fini* stubs at the beginning of the .init or | |
2557 | .fini output sections respectively, because glibc splits the | |
2558 | _init and _fini functions into multiple parts. Putting a stub in | |
2559 | the middle of a function is not a good idea. */ | |
a017a724 | 2560 | list = input_list + top_index; |
1badb539 | 2561 | do |
25f72752 AM |
2562 | { |
2563 | asection *tail = *list; | |
1badb539 AM |
2564 | if (tail == bfd_abs_section_ptr) |
2565 | continue; | |
25f72752 AM |
2566 | while (tail != NULL) |
2567 | { | |
2568 | asection *curr; | |
2569 | asection *prev; | |
2570 | bfd_size_type total; | |
2571 | ||
2572 | curr = tail; | |
2573 | if (tail->_cooked_size) | |
2574 | total = tail->_cooked_size; | |
2575 | else | |
2576 | total = tail->_raw_size; | |
2577 | while ((prev = PREV_SEC (curr)) != NULL | |
2578 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2579 | < stub_group_size)) |
25f72752 AM |
2580 | curr = prev; |
2581 | ||
2582 | /* OK, the size from the start of CURR to the end is less | |
2583 | than 250000 bytes and thus can be handled by one stub | |
2584 | section. (or the tail section is itself larger than | |
2585 | 250000 bytes, in which case we may be toast.) | |
2586 | We should really be keeping track of the total size of | |
2587 | stubs added here, as stubs contribute to the final output | |
2588 | section size. That's a little tricky, and this way will | |
2589 | only break if stubs added total more than 12144 bytes, or | |
2590 | 1518 long branch stubs. It seems unlikely for more than | |
2591 | 1518 different functions to be called, especially from | |
2592 | code only 250000 bytes long. */ | |
2593 | do | |
2594 | { | |
2595 | prev = PREV_SEC (tail); | |
2596 | /* Set up this stub group. */ | |
2597 | hplink->stub_group[tail->id].link_sec = curr; | |
2598 | } | |
2599 | while (tail != curr && (tail = prev) != NULL); | |
2600 | ||
2601 | /* But wait, there's more! Input sections up to 250000 | |
2602 | bytes before the stub section can be handled by it too. */ | |
47d89dba | 2603 | if (!stubs_always_before_branch) |
25f72752 | 2604 | { |
47d89dba AM |
2605 | total = 0; |
2606 | while (prev != NULL | |
2607 | && ((total += tail->output_offset - prev->output_offset) | |
2608 | < stub_group_size)) | |
2609 | { | |
2610 | tail = prev; | |
2611 | prev = PREV_SEC (tail); | |
2612 | hplink->stub_group[tail->id].link_sec = curr; | |
2613 | } | |
25f72752 AM |
2614 | } |
2615 | tail = prev; | |
2616 | } | |
2617 | } | |
1badb539 | 2618 | while (list-- != input_list); |
25f72752 | 2619 | free (input_list); |
1badb539 | 2620 | #undef PREV_SEC |
30667bf3 AM |
2621 | |
2622 | /* We want to read in symbol extension records only once. To do this | |
2623 | we need to read in the local symbols in parallel and save them for | |
2624 | later use; so hold pointers to the local symbols in an array. */ | |
dc810e39 AM |
2625 | amt = sizeof (Elf_Internal_Sym *) * bfd_count; |
2626 | all_local_syms = (Elf_Internal_Sym **) bfd_zmalloc (amt); | |
30667bf3 | 2627 | if (all_local_syms == NULL) |
25f72752 | 2628 | return false; |
30667bf3 AM |
2629 | |
2630 | /* Walk over all the input BFDs, swapping in local symbols. | |
2631 | If we are creating a shared library, create hash entries for the | |
2632 | export stubs. */ | |
25f72752 | 2633 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2634 | input_bfd != NULL; |
25f72752 | 2635 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2636 | { |
2637 | Elf_Internal_Shdr *symtab_hdr; | |
2638 | Elf_Internal_Sym *isym; | |
25f72752 | 2639 | Elf32_External_Sym *ext_syms, *esym, *end_sy; |
dc810e39 | 2640 | bfd_size_type sec_size; |
edd21aca | 2641 | |
252b5132 RH |
2642 | /* We'll need the symbol table in a second. */ |
2643 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2644 | if (symtab_hdr->sh_info == 0) | |
2645 | continue; | |
2646 | ||
edd21aca AM |
2647 | /* We need an array of the local symbols attached to the input bfd. |
2648 | Unfortunately, we're going to have to read & swap them in. */ | |
dc810e39 AM |
2649 | sec_size = symtab_hdr->sh_info; |
2650 | sec_size *= sizeof (Elf_Internal_Sym); | |
2651 | local_syms = (Elf_Internal_Sym *) bfd_malloc (sec_size); | |
edd21aca AM |
2652 | if (local_syms == NULL) |
2653 | { | |
2654 | goto error_ret_free_local; | |
2655 | } | |
25f72752 | 2656 | all_local_syms[bfd_indx] = local_syms; |
dc810e39 AM |
2657 | sec_size = symtab_hdr->sh_info; |
2658 | sec_size *= sizeof (Elf32_External_Sym); | |
2659 | ext_syms = (Elf32_External_Sym *) bfd_malloc (sec_size); | |
edd21aca AM |
2660 | if (ext_syms == NULL) |
2661 | { | |
2662 | goto error_ret_free_local; | |
2663 | } | |
2664 | ||
2665 | if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 2666 | || (bfd_bread (ext_syms, sec_size, input_bfd) != sec_size)) |
edd21aca AM |
2667 | { |
2668 | free (ext_syms); | |
2669 | goto error_ret_free_local; | |
2670 | } | |
2671 | ||
2672 | /* Swap the local symbols in. */ | |
2673 | isym = local_syms; | |
2674 | esym = ext_syms; | |
25f72752 | 2675 | for (end_sy = esym + symtab_hdr->sh_info; esym < end_sy; esym++, isym++) |
edd21aca AM |
2676 | bfd_elf32_swap_symbol_in (input_bfd, esym, isym); |
2677 | ||
2678 | /* Now we can free the external symbols. */ | |
2679 | free (ext_syms); | |
edd21aca | 2680 | |
30667bf3 AM |
2681 | if (info->shared && hplink->multi_subspace) |
2682 | { | |
25f72752 AM |
2683 | struct elf_link_hash_entry **sym_hashes; |
2684 | struct elf_link_hash_entry **end_hashes; | |
30667bf3 AM |
2685 | unsigned int symcount; |
2686 | ||
2687 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2688 | - symtab_hdr->sh_info); | |
25f72752 AM |
2689 | sym_hashes = elf_sym_hashes (input_bfd); |
2690 | end_hashes = sym_hashes + symcount; | |
30667bf3 AM |
2691 | |
2692 | /* Look through the global syms for functions; We need to | |
2693 | build export stubs for all globally visible functions. */ | |
25f72752 | 2694 | for (; sym_hashes < end_hashes; sym_hashes++) |
30667bf3 AM |
2695 | { |
2696 | struct elf32_hppa_link_hash_entry *hash; | |
2697 | ||
25f72752 | 2698 | hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes; |
30667bf3 AM |
2699 | |
2700 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2701 | || hash->elf.root.type == bfd_link_hash_warning) | |
2702 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2703 | hash->elf.root.u.i.link); | |
2704 | ||
2705 | /* At this point in the link, undefined syms have been | |
2706 | resolved, so we need to check that the symbol was | |
2707 | defined in this BFD. */ | |
2708 | if ((hash->elf.root.type == bfd_link_hash_defined | |
2709 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2710 | && hash->elf.type == STT_FUNC | |
2711 | && hash->elf.root.u.def.section->output_section != NULL | |
25f72752 AM |
2712 | && (hash->elf.root.u.def.section->output_section->owner |
2713 | == output_bfd) | |
30667bf3 AM |
2714 | && hash->elf.root.u.def.section->owner == input_bfd |
2715 | && (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
2716 | && !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) | |
2717 | && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT) | |
2718 | { | |
2719 | asection *sec; | |
2720 | const char *stub_name; | |
2721 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2722 | ||
2723 | sec = hash->elf.root.u.def.section; | |
2724 | stub_name = hash->elf.root.root.string; | |
2725 | stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table, | |
2726 | stub_name, | |
2727 | false, false); | |
2728 | if (stub_entry == NULL) | |
2729 | { | |
25f72752 | 2730 | stub_entry = hppa_add_stub (stub_name, sec, hplink); |
30667bf3 AM |
2731 | if (!stub_entry) |
2732 | goto error_ret_free_local; | |
2733 | ||
2734 | stub_entry->target_value = hash->elf.root.u.def.value; | |
2735 | stub_entry->target_section = hash->elf.root.u.def.section; | |
2736 | stub_entry->stub_type = hppa_stub_export; | |
2737 | stub_entry->h = hash; | |
2738 | stub_changed = 1; | |
2739 | } | |
2740 | else | |
2741 | { | |
2742 | (*_bfd_error_handler) (_("%s: duplicate export stub %s"), | |
8f615d07 AM |
2743 | bfd_archive_filename (input_bfd), |
2744 | stub_name); | |
30667bf3 AM |
2745 | } |
2746 | } | |
2747 | } | |
30667bf3 AM |
2748 | } |
2749 | } | |
edd21aca AM |
2750 | |
2751 | while (1) | |
2752 | { | |
30667bf3 AM |
2753 | asection *stub_sec; |
2754 | ||
25f72752 | 2755 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2756 | input_bfd != NULL; |
25f72752 | 2757 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2758 | { |
2759 | Elf_Internal_Shdr *symtab_hdr; | |
2760 | ||
2761 | /* We'll need the symbol table in a second. */ | |
2762 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2763 | if (symtab_hdr->sh_info == 0) | |
2764 | continue; | |
2765 | ||
25f72752 | 2766 | local_syms = all_local_syms[bfd_indx]; |
30667bf3 AM |
2767 | |
2768 | /* Walk over each section attached to the input bfd. */ | |
2769 | for (section = input_bfd->sections; | |
2770 | section != NULL; | |
25f72752 | 2771 | section = section->next) |
30667bf3 AM |
2772 | { |
2773 | Elf_Internal_Shdr *input_rel_hdr; | |
2774 | Elf32_External_Rela *external_relocs, *erelaend, *erela; | |
2775 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; | |
2776 | ||
2777 | /* If there aren't any relocs, then there's nothing more | |
2778 | to do. */ | |
2779 | if ((section->flags & SEC_RELOC) == 0 | |
2780 | || section->reloc_count == 0) | |
2781 | continue; | |
2782 | ||
25f72752 AM |
2783 | /* If this section is a link-once section that will be |
2784 | discarded, then don't create any stubs. */ | |
2785 | if (section->output_section == NULL | |
2786 | || section->output_section->owner != output_bfd) | |
2787 | continue; | |
2788 | ||
30667bf3 | 2789 | /* Allocate space for the external relocations. */ |
dc810e39 AM |
2790 | amt = section->reloc_count; |
2791 | amt *= sizeof (Elf32_External_Rela); | |
2792 | external_relocs = (Elf32_External_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
2793 | if (external_relocs == NULL) |
2794 | { | |
2795 | goto error_ret_free_local; | |
2796 | } | |
2797 | ||
2798 | /* Likewise for the internal relocations. */ | |
dc810e39 AM |
2799 | amt = section->reloc_count; |
2800 | amt *= sizeof (Elf_Internal_Rela); | |
2801 | internal_relocs = (Elf_Internal_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
2802 | if (internal_relocs == NULL) |
2803 | { | |
2804 | free (external_relocs); | |
2805 | goto error_ret_free_local; | |
2806 | } | |
2807 | ||
2808 | /* Read in the external relocs. */ | |
2809 | input_rel_hdr = &elf_section_data (section)->rel_hdr; | |
2810 | if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 2811 | || bfd_bread (external_relocs, |
30667bf3 AM |
2812 | input_rel_hdr->sh_size, |
2813 | input_bfd) != input_rel_hdr->sh_size) | |
2814 | { | |
2815 | free (external_relocs); | |
2816 | error_ret_free_internal: | |
2817 | free (internal_relocs); | |
2818 | goto error_ret_free_local; | |
2819 | } | |
2820 | ||
2821 | /* Swap in the relocs. */ | |
2822 | erela = external_relocs; | |
2823 | erelaend = erela + section->reloc_count; | |
2824 | irela = internal_relocs; | |
2825 | for (; erela < erelaend; erela++, irela++) | |
2826 | bfd_elf32_swap_reloca_in (input_bfd, erela, irela); | |
2827 | ||
2828 | /* We're done with the external relocs, free them. */ | |
2829 | free (external_relocs); | |
2830 | ||
2831 | /* Now examine each relocation. */ | |
2832 | irela = internal_relocs; | |
2833 | irelaend = irela + section->reloc_count; | |
2834 | for (; irela < irelaend; irela++) | |
2835 | { | |
2836 | unsigned int r_type, r_indx; | |
2837 | enum elf32_hppa_stub_type stub_type; | |
2838 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2839 | asection *sym_sec; | |
2840 | bfd_vma sym_value; | |
2841 | bfd_vma destination; | |
2842 | struct elf32_hppa_link_hash_entry *hash; | |
2843 | char *stub_name; | |
25f72752 | 2844 | const asection *id_sec; |
30667bf3 AM |
2845 | |
2846 | r_type = ELF32_R_TYPE (irela->r_info); | |
2847 | r_indx = ELF32_R_SYM (irela->r_info); | |
2848 | ||
2849 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2850 | { | |
2851 | bfd_set_error (bfd_error_bad_value); | |
2852 | goto error_ret_free_internal; | |
2853 | } | |
2854 | ||
2855 | /* Only look for stubs on call instructions. */ | |
2856 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
2857 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
2858 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
2859 | continue; | |
2860 | ||
2861 | /* Now determine the call target, its name, value, | |
2862 | section. */ | |
2863 | sym_sec = NULL; | |
2864 | sym_value = 0; | |
2865 | destination = 0; | |
2866 | hash = NULL; | |
2867 | if (r_indx < symtab_hdr->sh_info) | |
2868 | { | |
2869 | /* It's a local symbol. */ | |
2870 | Elf_Internal_Sym *sym; | |
2871 | Elf_Internal_Shdr *hdr; | |
2872 | ||
2873 | sym = local_syms + r_indx; | |
2874 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
2875 | sym_sec = hdr->bfd_section; | |
2876 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
2877 | sym_value = sym->st_value; | |
2878 | destination = (sym_value + irela->r_addend | |
2879 | + sym_sec->output_offset | |
2880 | + sym_sec->output_section->vma); | |
2881 | } | |
2882 | else | |
2883 | { | |
2884 | /* It's an external symbol. */ | |
2885 | int e_indx; | |
2886 | ||
2887 | e_indx = r_indx - symtab_hdr->sh_info; | |
2888 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2889 | elf_sym_hashes (input_bfd)[e_indx]); | |
2890 | ||
2891 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2892 | || hash->elf.root.type == bfd_link_hash_warning) | |
2893 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2894 | hash->elf.root.u.i.link); | |
2895 | ||
2896 | if (hash->elf.root.type == bfd_link_hash_defined | |
2897 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2898 | { | |
2899 | sym_sec = hash->elf.root.u.def.section; | |
2900 | sym_value = hash->elf.root.u.def.value; | |
2901 | if (sym_sec->output_section != NULL) | |
2902 | destination = (sym_value + irela->r_addend | |
2903 | + sym_sec->output_offset | |
2904 | + sym_sec->output_section->vma); | |
2905 | } | |
2906 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
2907 | { | |
2908 | if (! info->shared) | |
2909 | continue; | |
2910 | } | |
2911 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
2912 | { | |
2913 | if (! (info->shared | |
2914 | && !info->no_undefined | |
2915 | && (ELF_ST_VISIBILITY (hash->elf.other) | |
2916 | == STV_DEFAULT))) | |
2917 | continue; | |
2918 | } | |
2919 | else | |
2920 | { | |
2921 | bfd_set_error (bfd_error_bad_value); | |
2922 | goto error_ret_free_internal; | |
2923 | } | |
2924 | } | |
2925 | ||
2926 | /* Determine what (if any) linker stub is needed. */ | |
2927 | stub_type = hppa_type_of_stub (section, irela, hash, | |
2928 | destination); | |
2929 | if (stub_type == hppa_stub_none) | |
2930 | continue; | |
2931 | ||
25f72752 AM |
2932 | /* Support for grouping stub sections. */ |
2933 | id_sec = hplink->stub_group[section->id].link_sec; | |
2934 | ||
30667bf3 | 2935 | /* Get the name of this stub. */ |
25f72752 | 2936 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela); |
30667bf3 AM |
2937 | if (!stub_name) |
2938 | goto error_ret_free_internal; | |
2939 | ||
2940 | stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table, | |
2941 | stub_name, | |
2942 | false, false); | |
2943 | if (stub_entry != NULL) | |
2944 | { | |
2945 | /* The proper stub has already been created. */ | |
2946 | free (stub_name); | |
2947 | continue; | |
2948 | } | |
2949 | ||
25f72752 | 2950 | stub_entry = hppa_add_stub (stub_name, section, hplink); |
30667bf3 AM |
2951 | if (stub_entry == NULL) |
2952 | { | |
2953 | free (stub_name); | |
2954 | goto error_ret_free_local; | |
2955 | } | |
2956 | ||
2957 | stub_entry->target_value = sym_value; | |
2958 | stub_entry->target_section = sym_sec; | |
2959 | stub_entry->stub_type = stub_type; | |
2960 | if (info->shared) | |
2961 | { | |
2962 | if (stub_type == hppa_stub_import) | |
2963 | stub_entry->stub_type = hppa_stub_import_shared; | |
98ceb8ce | 2964 | else if (stub_type == hppa_stub_long_branch) |
30667bf3 AM |
2965 | stub_entry->stub_type = hppa_stub_long_branch_shared; |
2966 | } | |
2967 | stub_entry->h = hash; | |
2968 | stub_changed = 1; | |
2969 | } | |
2970 | ||
2971 | /* We're done with the internal relocs, free them. */ | |
2972 | free (internal_relocs); | |
2973 | } | |
2974 | } | |
2975 | ||
2976 | if (!stub_changed) | |
2977 | break; | |
2978 | ||
2979 | /* OK, we've added some stubs. Find out the new size of the | |
2980 | stub sections. */ | |
30667bf3 AM |
2981 | for (stub_sec = hplink->stub_bfd->sections; |
2982 | stub_sec != NULL; | |
2983 | stub_sec = stub_sec->next) | |
2984 | { | |
74d1c347 AM |
2985 | stub_sec->_raw_size = 0; |
2986 | stub_sec->_cooked_size = 0; | |
2987 | } | |
74d1c347 AM |
2988 | |
2989 | bfd_hash_traverse (&hplink->stub_hash_table, | |
2990 | hppa_size_one_stub, | |
2991 | hplink); | |
2992 | ||
30667bf3 AM |
2993 | /* Ask the linker to do its stuff. */ |
2994 | (*hplink->layout_sections_again) (); | |
2995 | stub_changed = 0; | |
2996 | } | |
2997 | ||
25f72752 | 2998 | ret = 1; |
30667bf3 AM |
2999 | |
3000 | error_ret_free_local: | |
25f72752 AM |
3001 | while (bfd_count-- > 0) |
3002 | if (all_local_syms[bfd_count]) | |
3003 | free (all_local_syms[bfd_count]); | |
30667bf3 AM |
3004 | free (all_local_syms); |
3005 | ||
25f72752 | 3006 | return ret; |
30667bf3 AM |
3007 | } |
3008 | ||
30667bf3 AM |
3009 | /* For a final link, this function is called after we have sized the |
3010 | stubs to provide a value for __gp. */ | |
3011 | ||
3012 | boolean | |
3013 | elf32_hppa_set_gp (abfd, info) | |
3014 | bfd *abfd; | |
3015 | struct bfd_link_info *info; | |
3016 | { | |
74d1c347 | 3017 | struct elf32_hppa_link_hash_table *hplink; |
30667bf3 AM |
3018 | struct elf_link_hash_entry *h; |
3019 | asection *sec; | |
3020 | bfd_vma gp_val; | |
3021 | ||
74d1c347 AM |
3022 | hplink = hppa_link_hash_table (info); |
3023 | h = elf_link_hash_lookup (&hplink->root, "$global$", | |
30667bf3 AM |
3024 | false, false, false); |
3025 | ||
df8634e3 AM |
3026 | if (h != NULL |
3027 | && (h->root.type == bfd_link_hash_defined | |
3028 | || h->root.type == bfd_link_hash_defweak)) | |
30667bf3 AM |
3029 | { |
3030 | gp_val = h->root.u.def.value; | |
3031 | sec = h->root.u.def.section; | |
3032 | } | |
3033 | else | |
3034 | { | |
74d1c347 AM |
3035 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
3036 | or .data, if these sections exist. In the case of choosing | |
3037 | .plt try to make the LTP ideal for addressing anywhere in the | |
3038 | .plt or .got with a 14 bit signed offset. Typically, the end | |
3039 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
3040 | if either the .plt or .got is larger than 0x2000. If both | |
3041 | the .plt and .got are smaller than 0x2000, choose the end of | |
3042 | the .plt section. */ | |
3043 | ||
3044 | sec = hplink->splt; | |
3045 | if (sec != NULL) | |
30667bf3 | 3046 | { |
74d1c347 AM |
3047 | gp_val = sec->_raw_size; |
3048 | if (gp_val > 0x2000 | |
3049 | || (hplink->sgot && hplink->sgot->_raw_size > 0x2000)) | |
3050 | { | |
3051 | gp_val = 0x2000; | |
3052 | } | |
3053 | } | |
3054 | else | |
3055 | { | |
3056 | gp_val = 0; | |
3057 | sec = hplink->sgot; | |
3058 | if (sec != NULL) | |
3059 | { | |
3060 | /* We know we don't have a .plt. If .got is large, | |
3061 | offset our LTP. */ | |
3062 | if (sec->_raw_size > 0x2000) | |
3063 | gp_val = 0x2000; | |
3064 | } | |
3065 | else | |
3066 | { | |
3067 | /* No .plt or .got. Who cares what the LTP is? */ | |
3068 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3069 | } | |
30667bf3 | 3070 | } |
df8634e3 AM |
3071 | |
3072 | if (h != NULL) | |
3073 | { | |
3074 | h->root.type = bfd_link_hash_defined; | |
3075 | h->root.u.def.value = gp_val; | |
3076 | if (sec != NULL) | |
3077 | h->root.u.def.section = sec; | |
3078 | else | |
3079 | h->root.u.def.section = bfd_abs_section_ptr; | |
3080 | } | |
30667bf3 AM |
3081 | } |
3082 | ||
b32b5d6e | 3083 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
3084 | gp_val += sec->output_section->vma + sec->output_offset; |
3085 | ||
3086 | elf_gp (abfd) = gp_val; | |
30667bf3 AM |
3087 | return true; |
3088 | } | |
3089 | ||
30667bf3 AM |
3090 | /* Build all the stubs associated with the current output file. The |
3091 | stubs are kept in a hash table attached to the main linker hash | |
3092 | table. We also set up the .plt entries for statically linked PIC | |
3093 | functions here. This function is called via hppaelf_finish in the | |
3094 | linker. */ | |
3095 | ||
3096 | boolean | |
3097 | elf32_hppa_build_stubs (info) | |
3098 | struct bfd_link_info *info; | |
3099 | { | |
3100 | asection *stub_sec; | |
3101 | struct bfd_hash_table *table; | |
3102 | struct elf32_hppa_link_hash_table *hplink; | |
3103 | ||
3104 | hplink = hppa_link_hash_table (info); | |
3105 | ||
3106 | for (stub_sec = hplink->stub_bfd->sections; | |
3107 | stub_sec != NULL; | |
3108 | stub_sec = stub_sec->next) | |
3109 | { | |
dc810e39 | 3110 | bfd_size_type size; |
30667bf3 AM |
3111 | |
3112 | /* Allocate memory to hold the linker stubs. */ | |
74d1c347 | 3113 | size = stub_sec->_raw_size; |
30667bf3 AM |
3114 | stub_sec->contents = (unsigned char *) bfd_zalloc (hplink->stub_bfd, |
3115 | size); | |
3116 | if (stub_sec->contents == NULL && size != 0) | |
3117 | return false; | |
74d1c347 | 3118 | stub_sec->_raw_size = 0; |
30667bf3 AM |
3119 | } |
3120 | ||
3121 | /* Build the stubs as directed by the stub hash table. */ | |
30667bf3 AM |
3122 | table = &hplink->stub_hash_table; |
3123 | bfd_hash_traverse (table, hppa_build_one_stub, info); | |
3124 | ||
3125 | return true; | |
3126 | } | |
3127 | ||
c46b7515 AM |
3128 | /* Perform a final link. */ |
3129 | ||
3130 | static boolean | |
3131 | elf32_hppa_final_link (abfd, info) | |
3132 | bfd *abfd; | |
3133 | struct bfd_link_info *info; | |
3134 | { | |
3135 | asection *s; | |
3136 | ||
4dc86686 AM |
3137 | /* Invoke the regular ELF linker to do all the work. */ |
3138 | if (!bfd_elf32_bfd_final_link (abfd, info)) | |
c46b7515 AM |
3139 | return false; |
3140 | ||
3141 | /* If we're producing a final executable, sort the contents of the | |
3142 | unwind section. Magic section names, but this is much safer than | |
3143 | having elf32_hppa_relocate_section remember where SEGREL32 relocs | |
3144 | occurred. Consider what happens if someone inept creates a | |
3145 | linker script that puts unwind information in .text. */ | |
3146 | s = bfd_get_section_by_name (abfd, ".PARISC.unwind"); | |
3147 | if (s != NULL) | |
3148 | { | |
3149 | bfd_size_type size; | |
3150 | char *contents; | |
3151 | ||
3152 | size = s->_raw_size; | |
3153 | contents = bfd_malloc (size); | |
3154 | if (contents == NULL) | |
3155 | return false; | |
3156 | ||
3157 | if (! bfd_get_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3158 | return false; | |
3159 | ||
dc810e39 | 3160 | qsort (contents, (size_t) (size / 16), 16, hppa_unwind_entry_compare); |
c46b7515 AM |
3161 | |
3162 | if (! bfd_set_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3163 | return false; | |
3164 | } | |
3165 | return true; | |
3166 | } | |
3167 | ||
3168 | /* Record the lowest address for the data and text segments. */ | |
3169 | ||
3170 | static void | |
3171 | hppa_record_segment_addr (abfd, section, data) | |
3172 | bfd *abfd ATTRIBUTE_UNUSED; | |
3173 | asection *section; | |
3174 | PTR data; | |
3175 | { | |
3176 | struct elf32_hppa_link_hash_table *hplink; | |
3177 | ||
3178 | hplink = (struct elf32_hppa_link_hash_table *) data; | |
3179 | ||
3180 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3181 | { | |
3182 | bfd_vma value = section->vma - section->filepos; | |
3183 | ||
3184 | if ((section->flags & SEC_READONLY) != 0) | |
3185 | { | |
3186 | if (value < hplink->text_segment_base) | |
3187 | hplink->text_segment_base = value; | |
3188 | } | |
3189 | else | |
3190 | { | |
3191 | if (value < hplink->data_segment_base) | |
3192 | hplink->data_segment_base = value; | |
3193 | } | |
3194 | } | |
3195 | } | |
3196 | ||
30667bf3 AM |
3197 | /* Perform a relocation as part of a final link. */ |
3198 | ||
3199 | static bfd_reloc_status_type | |
25f72752 | 3200 | final_link_relocate (input_section, contents, rel, value, hplink, sym_sec, h) |
30667bf3 AM |
3201 | asection *input_section; |
3202 | bfd_byte *contents; | |
3203 | const Elf_Internal_Rela *rel; | |
3204 | bfd_vma value; | |
25f72752 | 3205 | struct elf32_hppa_link_hash_table *hplink; |
30667bf3 AM |
3206 | asection *sym_sec; |
3207 | struct elf32_hppa_link_hash_entry *h; | |
3208 | { | |
3209 | int insn; | |
3210 | unsigned int r_type = ELF32_R_TYPE (rel->r_info); | |
3211 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; | |
3212 | int r_format = howto->bitsize; | |
3213 | enum hppa_reloc_field_selector_type_alt r_field; | |
3214 | bfd *input_bfd = input_section->owner; | |
3215 | bfd_vma offset = rel->r_offset; | |
3216 | bfd_vma max_branch_offset = 0; | |
3217 | bfd_byte *hit_data = contents + offset; | |
3218 | bfd_signed_vma addend = rel->r_addend; | |
3219 | bfd_vma location; | |
3220 | struct elf32_hppa_stub_hash_entry *stub_entry = NULL; | |
3221 | int val; | |
3222 | ||
3223 | if (r_type == R_PARISC_NONE) | |
3224 | return bfd_reloc_ok; | |
3225 | ||
3226 | insn = bfd_get_32 (input_bfd, hit_data); | |
3227 | ||
3228 | /* Find out where we are and where we're going. */ | |
3229 | location = (offset + | |
3230 | input_section->output_offset + | |
3231 | input_section->output_section->vma); | |
3232 | ||
3233 | switch (r_type) | |
3234 | { | |
3235 | case R_PARISC_PCREL12F: | |
3236 | case R_PARISC_PCREL17F: | |
3237 | case R_PARISC_PCREL22F: | |
3238 | /* If this is a call to a function defined in another dynamic | |
3239 | library, or if it is a call to a PIC function in the same | |
74d1c347 AM |
3240 | object, or if this is a shared link and it is a call to a |
3241 | weak symbol which may or may not be in the same object, then | |
3242 | find the import stub in the stub hash. */ | |
30667bf3 AM |
3243 | if (sym_sec == NULL |
3244 | || sym_sec->output_section == NULL | |
12cca0d2 AM |
3245 | || (h != NULL |
3246 | && ((h->maybe_pic_call | |
3247 | && !(input_section->flags & SEC_HAS_GOT_REF)) | |
3248 | || (h->elf.root.type == bfd_link_hash_defweak | |
3249 | && h->elf.dynindx != -1 | |
3250 | && h->elf.plt.offset != (bfd_vma) -1)))) | |
30667bf3 AM |
3251 | { |
3252 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
25f72752 | 3253 | h, rel, hplink); |
30667bf3 AM |
3254 | if (stub_entry != NULL) |
3255 | { | |
3256 | value = (stub_entry->stub_offset | |
3257 | + stub_entry->stub_sec->output_offset | |
3258 | + stub_entry->stub_sec->output_section->vma); | |
3259 | addend = 0; | |
3260 | } | |
3261 | else if (sym_sec == NULL && h != NULL | |
3262 | && h->elf.root.type == bfd_link_hash_undefweak) | |
3263 | { | |
db20fd76 AM |
3264 | /* It's OK if undefined weak. Calls to undefined weak |
3265 | symbols behave as if the "called" function | |
3266 | immediately returns. We can thus call to a weak | |
3267 | function without first checking whether the function | |
3268 | is defined. */ | |
30667bf3 | 3269 | value = location; |
db20fd76 | 3270 | addend = 8; |
30667bf3 AM |
3271 | } |
3272 | else | |
3273 | return bfd_reloc_notsupported; | |
3274 | } | |
3275 | /* Fall thru. */ | |
3276 | ||
3277 | case R_PARISC_PCREL21L: | |
3278 | case R_PARISC_PCREL17C: | |
3279 | case R_PARISC_PCREL17R: | |
3280 | case R_PARISC_PCREL14R: | |
3281 | case R_PARISC_PCREL14F: | |
3282 | /* Make it a pc relative offset. */ | |
3283 | value -= location; | |
3284 | addend -= 8; | |
3285 | break; | |
3286 | ||
3287 | case R_PARISC_DPREL21L: | |
3288 | case R_PARISC_DPREL14R: | |
3289 | case R_PARISC_DPREL14F: | |
3290 | /* For all the DP relative relocations, we need to examine the symbol's | |
3291 | section. If it's a code section, then "data pointer relative" makes | |
3292 | no sense. In that case we don't adjust the "value", and for 21 bit | |
3293 | addil instructions, we change the source addend register from %dp to | |
3294 | %r0. This situation commonly arises when a variable's "constness" | |
3295 | is declared differently from the way the variable is defined. For | |
3296 | instance: "extern int foo" with foo defined as "const int foo". */ | |
3297 | if (sym_sec == NULL) | |
3298 | break; | |
3299 | if ((sym_sec->flags & SEC_CODE) != 0) | |
3300 | { | |
3301 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3302 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3303 | { | |
3304 | insn &= ~ (0x1f << 21); | |
74d1c347 | 3305 | #if 1 /* debug them. */ |
30667bf3 AM |
3306 | (*_bfd_error_handler) |
3307 | (_("%s(%s+0x%lx): fixing %s"), | |
8f615d07 | 3308 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3309 | input_section->name, |
3310 | (long) rel->r_offset, | |
3311 | howto->name); | |
3312 | #endif | |
3313 | } | |
3314 | /* Now try to make things easy for the dynamic linker. */ | |
3315 | ||
3316 | break; | |
3317 | } | |
74d1c347 | 3318 | /* Fall thru. */ |
30667bf3 AM |
3319 | |
3320 | case R_PARISC_DLTIND21L: | |
3321 | case R_PARISC_DLTIND14R: | |
3322 | case R_PARISC_DLTIND14F: | |
3323 | value -= elf_gp (input_section->output_section->owner); | |
3324 | break; | |
3325 | ||
c46b7515 AM |
3326 | case R_PARISC_SEGREL32: |
3327 | if ((sym_sec->flags & SEC_CODE) != 0) | |
3328 | value -= hplink->text_segment_base; | |
3329 | else | |
3330 | value -= hplink->data_segment_base; | |
3331 | break; | |
3332 | ||
30667bf3 AM |
3333 | default: |
3334 | break; | |
3335 | } | |
3336 | ||
3337 | switch (r_type) | |
3338 | { | |
3339 | case R_PARISC_DIR32: | |
47d89dba | 3340 | case R_PARISC_DIR14F: |
30667bf3 AM |
3341 | case R_PARISC_DIR17F: |
3342 | case R_PARISC_PCREL17C: | |
3343 | case R_PARISC_PCREL14F: | |
3344 | case R_PARISC_DPREL14F: | |
3345 | case R_PARISC_PLABEL32: | |
3346 | case R_PARISC_DLTIND14F: | |
3347 | case R_PARISC_SEGBASE: | |
3348 | case R_PARISC_SEGREL32: | |
3349 | r_field = e_fsel; | |
3350 | break; | |
3351 | ||
3352 | case R_PARISC_DIR21L: | |
3353 | case R_PARISC_PCREL21L: | |
3354 | case R_PARISC_DPREL21L: | |
3355 | case R_PARISC_PLABEL21L: | |
3356 | case R_PARISC_DLTIND21L: | |
3357 | r_field = e_lrsel; | |
3358 | break; | |
3359 | ||
3360 | case R_PARISC_DIR17R: | |
3361 | case R_PARISC_PCREL17R: | |
3362 | case R_PARISC_DIR14R: | |
3363 | case R_PARISC_PCREL14R: | |
3364 | case R_PARISC_DPREL14R: | |
3365 | case R_PARISC_PLABEL14R: | |
3366 | case R_PARISC_DLTIND14R: | |
3367 | r_field = e_rrsel; | |
3368 | break; | |
3369 | ||
3370 | case R_PARISC_PCREL12F: | |
3371 | case R_PARISC_PCREL17F: | |
3372 | case R_PARISC_PCREL22F: | |
3373 | r_field = e_fsel; | |
3374 | ||
3375 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3376 | { | |
3377 | max_branch_offset = (1 << (17-1)) << 2; | |
3378 | } | |
3379 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3380 | { | |
3381 | max_branch_offset = (1 << (12-1)) << 2; | |
3382 | } | |
3383 | else | |
3384 | { | |
3385 | max_branch_offset = (1 << (22-1)) << 2; | |
3386 | } | |
3387 | ||
3388 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3389 | undefined syms. We've already checked for a stub for the | |
3390 | shared undefined case. */ | |
3391 | if (sym_sec == NULL) | |
3392 | break; | |
3393 | ||
3394 | /* If the branch is out of reach, then redirect the | |
3395 | call to the local stub for this function. */ | |
3396 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3397 | { | |
3398 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
25f72752 | 3399 | h, rel, hplink); |
30667bf3 AM |
3400 | if (stub_entry == NULL) |
3401 | return bfd_reloc_notsupported; | |
3402 | ||
3403 | /* Munge up the value and addend so that we call the stub | |
3404 | rather than the procedure directly. */ | |
3405 | value = (stub_entry->stub_offset | |
3406 | + stub_entry->stub_sec->output_offset | |
3407 | + stub_entry->stub_sec->output_section->vma | |
3408 | - location); | |
3409 | addend = -8; | |
3410 | } | |
3411 | break; | |
3412 | ||
3413 | /* Something we don't know how to handle. */ | |
3414 | default: | |
3415 | return bfd_reloc_notsupported; | |
3416 | } | |
3417 | ||
3418 | /* Make sure we can reach the stub. */ | |
3419 | if (max_branch_offset != 0 | |
3420 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3421 | { | |
3422 | (*_bfd_error_handler) | |
3423 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), | |
8f615d07 | 3424 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3425 | input_section->name, |
3426 | (long) rel->r_offset, | |
3427 | stub_entry->root.string); | |
3428 | return bfd_reloc_notsupported; | |
3429 | } | |
3430 | ||
3431 | val = hppa_field_adjust (value, addend, r_field); | |
3432 | ||
3433 | switch (r_type) | |
3434 | { | |
3435 | case R_PARISC_PCREL12F: | |
3436 | case R_PARISC_PCREL17C: | |
3437 | case R_PARISC_PCREL17F: | |
3438 | case R_PARISC_PCREL17R: | |
3439 | case R_PARISC_PCREL22F: | |
3440 | case R_PARISC_DIR17F: | |
3441 | case R_PARISC_DIR17R: | |
3442 | /* This is a branch. Divide the offset by four. | |
3443 | Note that we need to decide whether it's a branch or | |
3444 | otherwise by inspecting the reloc. Inspecting insn won't | |
3445 | work as insn might be from a .word directive. */ | |
3446 | val >>= 2; | |
3447 | break; | |
3448 | ||
3449 | default: | |
3450 | break; | |
3451 | } | |
3452 | ||
3453 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3454 | ||
3455 | /* Update the instruction word. */ | |
74d1c347 | 3456 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3457 | return bfd_reloc_ok; |
3458 | } | |
3459 | ||
30667bf3 AM |
3460 | /* Relocate an HPPA ELF section. */ |
3461 | ||
3462 | static boolean | |
3463 | elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section, | |
3464 | contents, relocs, local_syms, local_sections) | |
3465 | bfd *output_bfd; | |
3466 | struct bfd_link_info *info; | |
3467 | bfd *input_bfd; | |
3468 | asection *input_section; | |
3469 | bfd_byte *contents; | |
3470 | Elf_Internal_Rela *relocs; | |
3471 | Elf_Internal_Sym *local_syms; | |
3472 | asection **local_sections; | |
3473 | { | |
3474 | bfd *dynobj; | |
3475 | bfd_vma *local_got_offsets; | |
3476 | struct elf32_hppa_link_hash_table *hplink; | |
3477 | Elf_Internal_Shdr *symtab_hdr; | |
3478 | Elf_Internal_Rela *rel; | |
3479 | Elf_Internal_Rela *relend; | |
30667bf3 AM |
3480 | |
3481 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3482 | ||
30667bf3 | 3483 | hplink = hppa_link_hash_table (info); |
74d1c347 AM |
3484 | dynobj = hplink->root.dynobj; |
3485 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
30667bf3 AM |
3486 | |
3487 | rel = relocs; | |
3488 | relend = relocs + input_section->reloc_count; | |
3489 | for (; rel < relend; rel++) | |
3490 | { | |
3491 | unsigned int r_type; | |
3492 | reloc_howto_type *howto; | |
3493 | unsigned int r_symndx; | |
3494 | struct elf32_hppa_link_hash_entry *h; | |
3495 | Elf_Internal_Sym *sym; | |
3496 | asection *sym_sec; | |
3497 | bfd_vma relocation; | |
3498 | bfd_reloc_status_type r; | |
3499 | const char *sym_name; | |
74d1c347 | 3500 | boolean plabel; |
68fb2e56 | 3501 | bfd_vma off; |
30667bf3 AM |
3502 | |
3503 | r_type = ELF32_R_TYPE (rel->r_info); | |
3504 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3505 | { | |
3506 | bfd_set_error (bfd_error_bad_value); | |
3507 | return false; | |
3508 | } | |
3509 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3510 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3511 | continue; | |
3512 | ||
3513 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3514 | ||
3515 | if (info->relocateable) | |
3516 | { | |
3517 | /* This is a relocateable link. We don't have to change | |
3518 | anything, unless the reloc is against a section symbol, | |
3519 | in which case we have to adjust according to where the | |
3520 | section symbol winds up in the output section. */ | |
3521 | if (r_symndx < symtab_hdr->sh_info) | |
3522 | { | |
3523 | sym = local_syms + r_symndx; | |
3524 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3525 | { | |
3526 | sym_sec = local_sections[r_symndx]; | |
3527 | rel->r_addend += sym_sec->output_offset; | |
3528 | } | |
3529 | } | |
3530 | continue; | |
3531 | } | |
3532 | ||
3533 | /* This is a final link. */ | |
3534 | h = NULL; | |
3535 | sym = NULL; | |
3536 | sym_sec = NULL; | |
3537 | if (r_symndx < symtab_hdr->sh_info) | |
3538 | { | |
3539 | /* This is a local symbol, h defaults to NULL. */ | |
3540 | sym = local_syms + r_symndx; | |
3541 | sym_sec = local_sections[r_symndx]; | |
3542 | relocation = ((ELF_ST_TYPE (sym->st_info) == STT_SECTION | |
3543 | ? 0 : sym->st_value) | |
3544 | + sym_sec->output_offset | |
3545 | + sym_sec->output_section->vma); | |
3546 | } | |
3547 | else | |
3548 | { | |
3549 | int indx; | |
3550 | ||
3551 | /* It's a global; Find its entry in the link hash. */ | |
3552 | indx = r_symndx - symtab_hdr->sh_info; | |
3553 | h = ((struct elf32_hppa_link_hash_entry *) | |
3554 | elf_sym_hashes (input_bfd)[indx]); | |
3555 | while (h->elf.root.type == bfd_link_hash_indirect | |
3556 | || h->elf.root.type == bfd_link_hash_warning) | |
3557 | h = (struct elf32_hppa_link_hash_entry *) h->elf.root.u.i.link; | |
3558 | ||
3559 | relocation = 0; | |
3560 | if (h->elf.root.type == bfd_link_hash_defined | |
3561 | || h->elf.root.type == bfd_link_hash_defweak) | |
3562 | { | |
3563 | sym_sec = h->elf.root.u.def.section; | |
3564 | /* If sym_sec->output_section is NULL, then it's a | |
3565 | symbol defined in a shared library. */ | |
3566 | if (sym_sec->output_section != NULL) | |
3567 | relocation = (h->elf.root.u.def.value | |
3568 | + sym_sec->output_offset | |
3569 | + sym_sec->output_section->vma); | |
3570 | } | |
3571 | else if (h->elf.root.type == bfd_link_hash_undefweak) | |
3572 | ; | |
3573 | else if (info->shared && !info->no_undefined | |
49e9d0d3 AM |
3574 | && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
3575 | && h->elf.type != STT_PARISC_MILLI) | |
30667bf3 | 3576 | { |
671bae9c | 3577 | if (info->symbolic && !info->allow_shlib_undefined) |
30667bf3 AM |
3578 | if (!((*info->callbacks->undefined_symbol) |
3579 | (info, h->elf.root.root.string, input_bfd, | |
3580 | input_section, rel->r_offset, false))) | |
3581 | return false; | |
3582 | } | |
3583 | else | |
3584 | { | |
3585 | if (!((*info->callbacks->undefined_symbol) | |
3586 | (info, h->elf.root.root.string, input_bfd, | |
3587 | input_section, rel->r_offset, true))) | |
3588 | return false; | |
3589 | } | |
3590 | } | |
3591 | ||
3592 | /* Do any required modifications to the relocation value, and | |
25f72752 AM |
3593 | determine what types of dynamic info we need to output, if |
3594 | any. */ | |
74d1c347 | 3595 | plabel = 0; |
30667bf3 AM |
3596 | switch (r_type) |
3597 | { | |
3598 | case R_PARISC_DLTIND14F: | |
3599 | case R_PARISC_DLTIND14R: | |
3600 | case R_PARISC_DLTIND21L: | |
3601 | /* Relocation is to the entry for this symbol in the global | |
3602 | offset table. */ | |
3603 | if (h != NULL) | |
3604 | { | |
4dc86686 | 3605 | boolean dyn; |
30667bf3 AM |
3606 | |
3607 | off = h->elf.got.offset; | |
4dc86686 AM |
3608 | dyn = hplink->root.dynamic_sections_created; |
3609 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf)) | |
30667bf3 AM |
3610 | { |
3611 | /* This is actually a static link, or it is a | |
3612 | -Bsymbolic link and the symbol is defined | |
3613 | locally, or the symbol was forced to be local | |
3614 | because of a version file. We must initialize | |
3615 | this entry in the global offset table. Since the | |
3616 | offset must always be a multiple of 4, we use the | |
3617 | least significant bit to record whether we have | |
3618 | initialized it already. | |
3619 | ||
3620 | When doing a dynamic link, we create a .rela.got | |
3621 | relocation entry to initialize the value. This | |
3622 | is done in the finish_dynamic_symbol routine. */ | |
3623 | if ((off & 1) != 0) | |
3624 | off &= ~1; | |
3625 | else | |
3626 | { | |
3627 | bfd_put_32 (output_bfd, relocation, | |
3628 | hplink->sgot->contents + off); | |
3629 | h->elf.got.offset |= 1; | |
3630 | } | |
3631 | } | |
30667bf3 AM |
3632 | } |
3633 | else | |
3634 | { | |
3635 | /* Local symbol case. */ | |
68fb2e56 | 3636 | if (local_got_offsets == NULL) |
49e9d0d3 | 3637 | abort (); |
30667bf3 | 3638 | |
68fb2e56 AM |
3639 | off = local_got_offsets[r_symndx]; |
3640 | ||
30667bf3 AM |
3641 | /* The offset must always be a multiple of 4. We use |
3642 | the least significant bit to record whether we have | |
3643 | already generated the necessary reloc. */ | |
3644 | if ((off & 1) != 0) | |
3645 | off &= ~1; | |
3646 | else | |
3647 | { | |
3648 | bfd_put_32 (output_bfd, relocation, | |
3649 | hplink->sgot->contents + off); | |
3650 | ||
3651 | if (info->shared) | |
3652 | { | |
8dea1268 AM |
3653 | /* Output a dynamic relocation for this GOT |
3654 | entry. In this case it is relative to the | |
3655 | base of the object because the symbol index | |
3656 | is zero. */ | |
30667bf3 AM |
3657 | Elf_Internal_Rela outrel; |
3658 | asection *srelgot = hplink->srelgot; | |
3659 | ||
3660 | outrel.r_offset = (off | |
3661 | + hplink->sgot->output_offset | |
3662 | + hplink->sgot->output_section->vma); | |
74d1c347 | 3663 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
3664 | outrel.r_addend = relocation; |
3665 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
3666 | ((Elf32_External_Rela *) | |
3667 | srelgot->contents | |
3668 | + srelgot->reloc_count)); | |
3669 | ++srelgot->reloc_count; | |
3670 | } | |
252b5132 | 3671 | |
30667bf3 AM |
3672 | local_got_offsets[r_symndx] |= 1; |
3673 | } | |
30667bf3 | 3674 | } |
252b5132 | 3675 | |
68fb2e56 AM |
3676 | if (off >= (bfd_vma) -2) |
3677 | abort (); | |
3678 | ||
30667bf3 | 3679 | /* Add the base of the GOT to the relocation value. */ |
68fb2e56 AM |
3680 | relocation = (off |
3681 | + hplink->sgot->output_offset | |
3682 | + hplink->sgot->output_section->vma); | |
30667bf3 | 3683 | break; |
252b5132 | 3684 | |
c46b7515 AM |
3685 | case R_PARISC_SEGREL32: |
3686 | /* If this is the first SEGREL relocation, then initialize | |
3687 | the segment base values. */ | |
3688 | if (hplink->text_segment_base == (bfd_vma) -1) | |
3689 | bfd_map_over_sections (output_bfd, | |
3690 | hppa_record_segment_addr, | |
3691 | hplink); | |
3692 | break; | |
3693 | ||
30667bf3 AM |
3694 | case R_PARISC_PLABEL14R: |
3695 | case R_PARISC_PLABEL21L: | |
3696 | case R_PARISC_PLABEL32: | |
74d1c347 | 3697 | if (hplink->root.dynamic_sections_created) |
252b5132 | 3698 | { |
74d1c347 AM |
3699 | /* If we have a global symbol with a PLT slot, then |
3700 | redirect this relocation to it. */ | |
3701 | if (h != NULL) | |
3702 | { | |
3703 | off = h->elf.plt.offset; | |
4dc86686 | 3704 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, &h->elf)) |
8dea1268 AM |
3705 | { |
3706 | /* In a non-shared link, adjust_dynamic_symbols | |
3707 | isn't called for symbols forced local. We | |
dc810e39 | 3708 | need to write out the plt entry here. */ |
8dea1268 AM |
3709 | if ((off & 1) != 0) |
3710 | off &= ~1; | |
3711 | else | |
3712 | { | |
3713 | bfd_put_32 (output_bfd, | |
3714 | relocation, | |
3715 | hplink->splt->contents + off); | |
3716 | bfd_put_32 (output_bfd, | |
3717 | elf_gp (hplink->splt->output_section->owner), | |
3718 | hplink->splt->contents + off + 4); | |
3719 | h->elf.plt.offset |= 1; | |
3720 | } | |
3721 | } | |
74d1c347 AM |
3722 | } |
3723 | else | |
3724 | { | |
68fb2e56 AM |
3725 | bfd_vma *local_plt_offsets; |
3726 | ||
3727 | if (local_got_offsets == NULL) | |
3728 | abort (); | |
74d1c347 | 3729 | |
68fb2e56 AM |
3730 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3731 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3732 | |
3733 | /* As for the local .got entry case, we use the last | |
3734 | bit to record whether we've already initialised | |
3735 | this local .plt entry. */ | |
3736 | if ((off & 1) != 0) | |
3737 | off &= ~1; | |
3738 | else | |
3739 | { | |
3740 | bfd_put_32 (output_bfd, | |
3741 | relocation, | |
3742 | hplink->splt->contents + off); | |
3743 | bfd_put_32 (output_bfd, | |
3744 | elf_gp (hplink->splt->output_section->owner), | |
3745 | hplink->splt->contents + off + 4); | |
3746 | ||
3747 | if (info->shared) | |
3748 | { | |
3749 | /* Output a dynamic IPLT relocation for this | |
3750 | PLT entry. */ | |
3751 | Elf_Internal_Rela outrel; | |
3752 | asection *srelplt = hplink->srelplt; | |
3753 | ||
3754 | outrel.r_offset = (off | |
3755 | + hplink->splt->output_offset | |
3756 | + hplink->splt->output_section->vma); | |
3757 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3758 | outrel.r_addend = relocation; | |
3759 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
3760 | ((Elf32_External_Rela *) | |
3761 | srelplt->contents | |
3762 | + srelplt->reloc_count)); | |
3763 | ++srelplt->reloc_count; | |
3764 | } | |
3765 | ||
68fb2e56 | 3766 | local_plt_offsets[r_symndx] |= 1; |
74d1c347 AM |
3767 | } |
3768 | } | |
3769 | ||
68fb2e56 | 3770 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3771 | abort (); |
74d1c347 AM |
3772 | |
3773 | /* PLABELs contain function pointers. Relocation is to | |
3774 | the entry for the function in the .plt. The magic +2 | |
3775 | offset signals to $$dyncall that the function pointer | |
3776 | is in the .plt and thus has a gp pointer too. | |
3777 | Exception: Undefined PLABELs should have a value of | |
3778 | zero. */ | |
3779 | if (h == NULL | |
3780 | || (h->elf.root.type != bfd_link_hash_undefweak | |
3781 | && h->elf.root.type != bfd_link_hash_undefined)) | |
3782 | { | |
3783 | relocation = (off | |
3784 | + hplink->splt->output_offset | |
3785 | + hplink->splt->output_section->vma | |
3786 | + 2); | |
3787 | } | |
3788 | plabel = 1; | |
30667bf3 AM |
3789 | } |
3790 | /* Fall through and possibly emit a dynamic relocation. */ | |
3791 | ||
3792 | case R_PARISC_DIR17F: | |
3793 | case R_PARISC_DIR17R: | |
47d89dba | 3794 | case R_PARISC_DIR14F: |
30667bf3 AM |
3795 | case R_PARISC_DIR14R: |
3796 | case R_PARISC_DIR21L: | |
3797 | case R_PARISC_DPREL14F: | |
3798 | case R_PARISC_DPREL14R: | |
3799 | case R_PARISC_DPREL21L: | |
3800 | case R_PARISC_DIR32: | |
3801 | /* The reloc types handled here and this conditional | |
56882138 AM |
3802 | expression must match the code in ..check_relocs and |
3803 | ..discard_relocs. ie. We need exactly the same condition | |
3804 | as in ..check_relocs, with some extra conditions (dynindx | |
3805 | test in this case) to cater for relocs removed by | |
3806 | ..discard_relocs. If you squint, the non-shared test | |
3807 | here does indeed match the one in ..check_relocs, the | |
3808 | difference being that here we test DEF_DYNAMIC as well as | |
3809 | !DEF_REGULAR. All common syms end up with !DEF_REGULAR, | |
3810 | which is why we can't use just that test here. | |
3811 | Conversely, DEF_DYNAMIC can't be used in check_relocs as | |
3812 | there all files have not been loaded. */ | |
446f2863 AM |
3813 | if ((info->shared |
3814 | && (input_section->flags & SEC_ALLOC) != 0 | |
3815 | && (IS_ABSOLUTE_RELOC (r_type) | |
3816 | || (h != NULL | |
3817 | && h->elf.dynindx != -1 | |
3818 | && (!info->symbolic | |
3819 | || (h->elf.elf_link_hash_flags | |
3820 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
3821 | || (!info->shared | |
3822 | && (input_section->flags & SEC_ALLOC) != 0 | |
3823 | && h != NULL | |
3824 | && h->elf.dynindx != -1 | |
3825 | && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
56882138 AM |
3826 | && (((h->elf.elf_link_hash_flags |
3827 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
3828 | && (h->elf.elf_link_hash_flags | |
3829 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
446f2863 AM |
3830 | || h->elf.root.type == bfd_link_hash_undefweak |
3831 | || h->elf.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
3832 | { |
3833 | Elf_Internal_Rela outrel; | |
3834 | boolean skip; | |
98ceb8ce AM |
3835 | asection *sreloc; |
3836 | Elf32_External_Rela *loc; | |
252b5132 | 3837 | |
30667bf3 AM |
3838 | /* When generating a shared object, these relocations |
3839 | are copied into the output file to be resolved at run | |
3840 | time. */ | |
252b5132 | 3841 | |
30667bf3 AM |
3842 | outrel.r_offset = rel->r_offset; |
3843 | outrel.r_addend = rel->r_addend; | |
3844 | skip = false; | |
3845 | if (elf_section_data (input_section)->stab_info != NULL) | |
edd21aca | 3846 | { |
30667bf3 | 3847 | off = (_bfd_stab_section_offset |
74d1c347 | 3848 | (output_bfd, &hplink->root.stab_info, |
30667bf3 AM |
3849 | input_section, |
3850 | &elf_section_data (input_section)->stab_info, | |
3851 | rel->r_offset)); | |
3852 | if (off == (bfd_vma) -1) | |
3853 | skip = true; | |
3854 | outrel.r_offset = off; | |
edd21aca | 3855 | } |
252b5132 | 3856 | |
30667bf3 AM |
3857 | outrel.r_offset += (input_section->output_offset |
3858 | + input_section->output_section->vma); | |
3859 | ||
3860 | if (skip) | |
252b5132 | 3861 | { |
30667bf3 | 3862 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 3863 | } |
74d1c347 AM |
3864 | else if (h != NULL |
3865 | && h->elf.dynindx != -1 | |
3866 | && (plabel | |
446f2863 AM |
3867 | || !IS_ABSOLUTE_RELOC (r_type) |
3868 | || !info->shared | |
74d1c347 | 3869 | || !info->symbolic |
30667bf3 AM |
3870 | || (h->elf.elf_link_hash_flags |
3871 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
252b5132 | 3872 | { |
30667bf3 AM |
3873 | outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type); |
3874 | } | |
3875 | else /* It's a local symbol, or one marked to become local. */ | |
3876 | { | |
3877 | int indx = 0; | |
edd21aca | 3878 | |
30667bf3 AM |
3879 | /* Add the absolute offset of the symbol. */ |
3880 | outrel.r_addend += relocation; | |
edd21aca | 3881 | |
74d1c347 AM |
3882 | /* Global plabels need to be processed by the |
3883 | dynamic linker so that functions have at most one | |
3884 | fptr. For this reason, we need to differentiate | |
3885 | between global and local plabels, which we do by | |
3886 | providing the function symbol for a global plabel | |
3887 | reloc, and no symbol for local plabels. */ | |
3888 | if (! plabel | |
3889 | && sym_sec != NULL | |
30667bf3 AM |
3890 | && sym_sec->output_section != NULL |
3891 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 3892 | { |
30667bf3 AM |
3893 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
3894 | /* We are turning this relocation into one | |
3895 | against a section symbol, so subtract out the | |
3896 | output section's address but not the offset | |
3897 | of the input section in the output section. */ | |
3898 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 3899 | } |
252b5132 | 3900 | |
30667bf3 AM |
3901 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
3902 | } | |
68fb2e56 AM |
3903 | #if 0 |
3904 | /* EH info can cause unaligned DIR32 relocs. | |
3905 | Tweak the reloc type for the dynamic linker. */ | |
3906 | if (r_type == R_PARISC_DIR32 && (outrel.r_offset & 3) != 0) | |
3907 | outrel.r_info = ELF32_R_INFO (ELF32_R_SYM (outrel.r_info), | |
3908 | R_PARISC_DIR32U); | |
3909 | #endif | |
98ceb8ce AM |
3910 | sreloc = elf_section_data (input_section)->sreloc; |
3911 | if (sreloc == NULL) | |
3912 | abort (); | |
3913 | ||
3914 | loc = ((Elf32_External_Rela *) sreloc->contents | |
3915 | + sreloc->reloc_count); | |
3916 | sreloc->reloc_count += 1; | |
3917 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
30667bf3 AM |
3918 | } |
3919 | break; | |
edd21aca | 3920 | |
30667bf3 AM |
3921 | default: |
3922 | break; | |
3923 | } | |
252b5132 | 3924 | |
30667bf3 | 3925 | r = final_link_relocate (input_section, contents, rel, relocation, |
25f72752 | 3926 | hplink, sym_sec, h); |
252b5132 | 3927 | |
30667bf3 AM |
3928 | if (r == bfd_reloc_ok) |
3929 | continue; | |
252b5132 | 3930 | |
30667bf3 AM |
3931 | if (h != NULL) |
3932 | sym_name = h->elf.root.root.string; | |
3933 | else | |
3934 | { | |
3935 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
3936 | symtab_hdr->sh_link, | |
3937 | sym->st_name); | |
3938 | if (sym_name == NULL) | |
3939 | return false; | |
3940 | if (*sym_name == '\0') | |
3941 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
3942 | } | |
edd21aca | 3943 | |
30667bf3 | 3944 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 3945 | |
30667bf3 AM |
3946 | if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported) |
3947 | { | |
3948 | (*_bfd_error_handler) | |
3949 | (_("%s(%s+0x%lx): cannot handle %s for %s"), | |
8f615d07 | 3950 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3951 | input_section->name, |
3952 | (long) rel->r_offset, | |
3953 | howto->name, | |
3954 | sym_name); | |
8f615d07 AM |
3955 | bfd_set_error (bfd_error_bad_value); |
3956 | return false; | |
30667bf3 AM |
3957 | } |
3958 | else | |
3959 | { | |
3960 | if (!((*info->callbacks->reloc_overflow) | |
3961 | (info, sym_name, howto->name, (bfd_vma) 0, | |
3962 | input_bfd, input_section, rel->r_offset))) | |
3963 | return false; | |
3964 | } | |
3965 | } | |
edd21aca | 3966 | |
30667bf3 AM |
3967 | return true; |
3968 | } | |
252b5132 | 3969 | |
c46b7515 AM |
3970 | /* Comparison function for qsort to sort unwind section during a |
3971 | final link. */ | |
3972 | ||
3973 | static int | |
3974 | hppa_unwind_entry_compare (a, b) | |
3975 | const PTR a; | |
3976 | const PTR b; | |
3977 | { | |
3978 | const bfd_byte *ap, *bp; | |
3979 | unsigned long av, bv; | |
3980 | ||
3981 | ap = (const bfd_byte *) a; | |
3982 | av = (unsigned long) ap[0] << 24; | |
3983 | av |= (unsigned long) ap[1] << 16; | |
3984 | av |= (unsigned long) ap[2] << 8; | |
3985 | av |= (unsigned long) ap[3]; | |
3986 | ||
3987 | bp = (const bfd_byte *) b; | |
3988 | bv = (unsigned long) bp[0] << 24; | |
3989 | bv |= (unsigned long) bp[1] << 16; | |
3990 | bv |= (unsigned long) bp[2] << 8; | |
3991 | bv |= (unsigned long) bp[3]; | |
3992 | ||
3993 | return av < bv ? -1 : av > bv ? 1 : 0; | |
3994 | } | |
3995 | ||
30667bf3 AM |
3996 | /* Finish up dynamic symbol handling. We set the contents of various |
3997 | dynamic sections here. */ | |
252b5132 | 3998 | |
30667bf3 AM |
3999 | static boolean |
4000 | elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym) | |
4001 | bfd *output_bfd; | |
4002 | struct bfd_link_info *info; | |
4003 | struct elf_link_hash_entry *h; | |
4004 | Elf_Internal_Sym *sym; | |
4005 | { | |
4006 | struct elf32_hppa_link_hash_table *hplink; | |
4007 | bfd *dynobj; | |
edd21aca | 4008 | |
30667bf3 | 4009 | hplink = hppa_link_hash_table (info); |
74d1c347 | 4010 | dynobj = hplink->root.dynobj; |
30667bf3 | 4011 | |
30667bf3 AM |
4012 | if (h->plt.offset != (bfd_vma) -1) |
4013 | { | |
4014 | bfd_vma value; | |
30667bf3 | 4015 | |
8dea1268 AM |
4016 | if (h->plt.offset & 1) |
4017 | abort (); | |
4018 | ||
30667bf3 AM |
4019 | /* This symbol has an entry in the procedure linkage table. Set |
4020 | it up. | |
4021 | ||
4022 | The format of a plt entry is | |
74d1c347 AM |
4023 | <funcaddr> |
4024 | <__gp> | |
47d89dba | 4025 | */ |
30667bf3 AM |
4026 | value = 0; |
4027 | if (h->root.type == bfd_link_hash_defined | |
4028 | || h->root.type == bfd_link_hash_defweak) | |
4029 | { | |
4030 | value = h->root.u.def.value; | |
4031 | if (h->root.u.def.section->output_section != NULL) | |
4032 | value += (h->root.u.def.section->output_offset | |
4033 | + h->root.u.def.section->output_section->vma); | |
252b5132 | 4034 | } |
edd21aca | 4035 | |
74d1c347 | 4036 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call) |
30667bf3 | 4037 | { |
47d89dba AM |
4038 | Elf_Internal_Rela rel; |
4039 | ||
30667bf3 AM |
4040 | /* Create a dynamic IPLT relocation for this entry. */ |
4041 | rel.r_offset = (h->plt.offset | |
4042 | + hplink->splt->output_offset | |
4043 | + hplink->splt->output_section->vma); | |
74d1c347 AM |
4044 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plt_abs |
4045 | && h->dynindx != -1) | |
4046 | { | |
47d89dba AM |
4047 | /* To support lazy linking, the function pointer is |
4048 | initialised to point to a special stub stored at the | |
8dea1268 AM |
4049 | end of the .plt. This is not done for plt entries |
4050 | with a base-relative dynamic relocation. */ | |
47d89dba AM |
4051 | value = (hplink->splt->output_offset |
4052 | + hplink->splt->output_section->vma | |
4053 | + hplink->splt->_raw_size | |
4054 | - sizeof (plt_stub) | |
4055 | + PLT_STUB_ENTRY); | |
74d1c347 AM |
4056 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT); |
4057 | rel.r_addend = 0; | |
4058 | } | |
4059 | else | |
4060 | { | |
4061 | /* This symbol has been marked to become local, and is | |
4062 | used by a plabel so must be kept in the .plt. */ | |
4063 | rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
4064 | rel.r_addend = value; | |
4065 | } | |
30667bf3 AM |
4066 | |
4067 | bfd_elf32_swap_reloca_out (hplink->splt->output_section->owner, | |
4068 | &rel, | |
4069 | ((Elf32_External_Rela *) | |
4070 | hplink->srelplt->contents | |
4071 | + hplink->srelplt->reloc_count)); | |
4072 | hplink->srelplt->reloc_count++; | |
4073 | } | |
4074 | ||
47d89dba AM |
4075 | bfd_put_32 (hplink->splt->owner, |
4076 | value, | |
4077 | hplink->splt->contents + h->plt.offset); | |
4078 | bfd_put_32 (hplink->splt->owner, | |
4079 | elf_gp (hplink->splt->output_section->owner), | |
4080 | hplink->splt->contents + h->plt.offset + 4); | |
4081 | if (PLABEL_PLT_ENTRY_SIZE != PLT_ENTRY_SIZE | |
4082 | && ((struct elf32_hppa_link_hash_entry *) h)->plabel | |
4083 | && h->dynindx != -1) | |
4084 | { | |
4085 | memset (hplink->splt->contents + h->plt.offset + 8, | |
4086 | 0, PLABEL_PLT_ENTRY_SIZE - PLT_ENTRY_SIZE); | |
4087 | } | |
4088 | ||
30667bf3 AM |
4089 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
4090 | { | |
4091 | /* Mark the symbol as undefined, rather than as defined in | |
4092 | the .plt section. Leave the value alone. */ | |
4093 | sym->st_shndx = SHN_UNDEF; | |
4094 | } | |
4095 | } | |
edd21aca | 4096 | |
30667bf3 AM |
4097 | if (h->got.offset != (bfd_vma) -1) |
4098 | { | |
4099 | Elf_Internal_Rela rel; | |
4100 | ||
4101 | /* This symbol has an entry in the global offset table. Set it | |
4102 | up. */ | |
4103 | ||
4104 | rel.r_offset = ((h->got.offset &~ (bfd_vma) 1) | |
4105 | + hplink->sgot->output_offset | |
4106 | + hplink->sgot->output_section->vma); | |
4107 | ||
4dc86686 AM |
4108 | /* If this is a -Bsymbolic link and the symbol is defined |
4109 | locally or was forced to be local because of a version file, | |
4110 | we just want to emit a RELATIVE reloc. The entry in the | |
4111 | global offset table will already have been initialized in the | |
4112 | relocate_section function. */ | |
4113 | if (info->shared | |
4114 | && (info->symbolic || h->dynindx == -1) | |
4115 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
30667bf3 | 4116 | { |
74d1c347 | 4117 | rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
4118 | rel.r_addend = (h->root.u.def.value |
4119 | + h->root.u.def.section->output_offset | |
4120 | + h->root.u.def.section->output_section->vma); | |
4121 | } | |
4122 | else | |
4123 | { | |
49e9d0d3 AM |
4124 | if ((h->got.offset & 1) != 0) |
4125 | abort (); | |
30667bf3 AM |
4126 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
4127 | hplink->sgot->contents + h->got.offset); | |
4128 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32); | |
4129 | rel.r_addend = 0; | |
4130 | } | |
edd21aca | 4131 | |
30667bf3 AM |
4132 | bfd_elf32_swap_reloca_out (output_bfd, &rel, |
4133 | ((Elf32_External_Rela *) | |
4134 | hplink->srelgot->contents | |
4135 | + hplink->srelgot->reloc_count)); | |
4136 | ++hplink->srelgot->reloc_count; | |
4137 | } | |
edd21aca | 4138 | |
30667bf3 AM |
4139 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
4140 | { | |
4141 | asection *s; | |
4142 | Elf_Internal_Rela rel; | |
4143 | ||
4144 | /* This symbol needs a copy reloc. Set it up. */ | |
4145 | ||
49e9d0d3 AM |
4146 | if (! (h->dynindx != -1 |
4147 | && (h->root.type == bfd_link_hash_defined | |
4148 | || h->root.type == bfd_link_hash_defweak))) | |
4149 | abort (); | |
30667bf3 AM |
4150 | |
4151 | s = hplink->srelbss; | |
4152 | ||
4153 | rel.r_offset = (h->root.u.def.value | |
4154 | + h->root.u.def.section->output_offset | |
4155 | + h->root.u.def.section->output_section->vma); | |
4156 | rel.r_addend = 0; | |
4157 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY); | |
4158 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
4159 | ((Elf32_External_Rela *) s->contents | |
4160 | + s->reloc_count)); | |
4161 | ++s->reloc_count; | |
4162 | } | |
4163 | ||
4164 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
4165 | if (h->root.root.string[0] == '_' | |
4166 | && (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4167 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)) | |
4168 | { | |
4169 | sym->st_shndx = SHN_ABS; | |
4170 | } | |
4171 | ||
4172 | return true; | |
4173 | } | |
4174 | ||
98ceb8ce AM |
4175 | /* Used to decide how to sort relocs in an optimal manner for the |
4176 | dynamic linker, before writing them out. */ | |
4177 | ||
4178 | static enum elf_reloc_type_class | |
4179 | elf32_hppa_reloc_type_class (rela) | |
4180 | const Elf_Internal_Rela *rela; | |
4181 | { | |
4182 | if (ELF32_R_SYM (rela->r_info) == 0) | |
4183 | return reloc_class_relative; | |
4184 | ||
4185 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4186 | { | |
4187 | case R_PARISC_IPLT: | |
4188 | return reloc_class_plt; | |
4189 | case R_PARISC_COPY: | |
4190 | return reloc_class_copy; | |
4191 | default: | |
4192 | return reloc_class_normal; | |
4193 | } | |
4194 | } | |
4195 | ||
30667bf3 AM |
4196 | /* Finish up the dynamic sections. */ |
4197 | ||
4198 | static boolean | |
4199 | elf32_hppa_finish_dynamic_sections (output_bfd, info) | |
4200 | bfd *output_bfd; | |
4201 | struct bfd_link_info *info; | |
4202 | { | |
4203 | bfd *dynobj; | |
4204 | struct elf32_hppa_link_hash_table *hplink; | |
4205 | asection *sdyn; | |
4206 | ||
30667bf3 | 4207 | hplink = hppa_link_hash_table (info); |
74d1c347 | 4208 | dynobj = hplink->root.dynobj; |
30667bf3 AM |
4209 | |
4210 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4211 | ||
74d1c347 | 4212 | if (hplink->root.dynamic_sections_created) |
30667bf3 AM |
4213 | { |
4214 | Elf32_External_Dyn *dyncon, *dynconend; | |
4215 | ||
49e9d0d3 AM |
4216 | if (sdyn == NULL) |
4217 | abort (); | |
30667bf3 AM |
4218 | |
4219 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
4220 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4221 | for (; dyncon < dynconend; dyncon++) | |
edd21aca | 4222 | { |
30667bf3 AM |
4223 | Elf_Internal_Dyn dyn; |
4224 | asection *s; | |
4225 | ||
4226 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4227 | ||
4228 | switch (dyn.d_tag) | |
4229 | { | |
4230 | default: | |
4231 | break; | |
4232 | ||
4233 | case DT_PLTGOT: | |
4234 | /* Use PLTGOT to set the GOT register. */ | |
4235 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
4236 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
4237 | break; | |
4238 | ||
4239 | case DT_JMPREL: | |
4240 | s = hplink->srelplt; | |
4241 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
4242 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
4243 | break; | |
4244 | ||
4245 | case DT_PLTRELSZ: | |
4246 | s = hplink->srelplt; | |
4247 | if (s->_cooked_size != 0) | |
4248 | dyn.d_un.d_val = s->_cooked_size; | |
4249 | else | |
4250 | dyn.d_un.d_val = s->_raw_size; | |
4251 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
4252 | break; | |
4253 | } | |
edd21aca | 4254 | } |
252b5132 | 4255 | } |
edd21aca | 4256 | |
b64977c5 | 4257 | if (hplink->sgot != NULL && hplink->sgot->_raw_size != 0) |
30667bf3 | 4258 | { |
74d1c347 AM |
4259 | /* Fill in the first entry in the global offset table. |
4260 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 AM |
4261 | bfd_put_32 (output_bfd, |
4262 | (sdyn != NULL | |
4263 | ? sdyn->output_section->vma + sdyn->output_offset | |
4264 | : (bfd_vma) 0), | |
4265 | hplink->sgot->contents); | |
4266 | ||
74d1c347 | 4267 | /* The second entry is reserved for use by the dynamic linker. */ |
47d89dba | 4268 | memset (hplink->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4269 | |
30667bf3 | 4270 | /* Set .got entry size. */ |
74d1c347 AM |
4271 | elf_section_data (hplink->sgot->output_section) |
4272 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; | |
30667bf3 AM |
4273 | } |
4274 | ||
b64977c5 | 4275 | if (hplink->splt != NULL && hplink->splt->_raw_size != 0) |
47d89dba AM |
4276 | { |
4277 | /* Set plt entry size. */ | |
4278 | elf_section_data (hplink->splt->output_section) | |
4279 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; | |
4280 | ||
4281 | if (hplink->need_plt_stub) | |
4282 | { | |
4283 | /* Set up the .plt stub. */ | |
4284 | memcpy (hplink->splt->contents | |
4285 | + hplink->splt->_raw_size - sizeof (plt_stub), | |
4286 | plt_stub, sizeof (plt_stub)); | |
4287 | ||
4288 | if ((hplink->splt->output_offset | |
4289 | + hplink->splt->output_section->vma | |
4290 | + hplink->splt->_raw_size) | |
4291 | != (hplink->sgot->output_offset | |
4292 | + hplink->sgot->output_section->vma)) | |
4293 | { | |
4294 | (*_bfd_error_handler) | |
4295 | (_(".got section not immediately after .plt section")); | |
4296 | return false; | |
4297 | } | |
4298 | } | |
4299 | } | |
30667bf3 | 4300 | |
252b5132 | 4301 | return true; |
30667bf3 | 4302 | } |
252b5132 | 4303 | |
d952f17a AM |
4304 | /* Tweak the OSABI field of the elf header. */ |
4305 | ||
4306 | static void | |
4307 | elf32_hppa_post_process_headers (abfd, link_info) | |
4308 | bfd *abfd; | |
4309 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
4310 | { | |
4311 | Elf_Internal_Ehdr * i_ehdrp; | |
4312 | ||
4313 | i_ehdrp = elf_elfheader (abfd); | |
4314 | ||
4315 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
4316 | { | |
4317 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
4318 | } | |
4319 | else | |
4320 | { | |
4321 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; | |
4322 | } | |
4323 | } | |
4324 | ||
30667bf3 AM |
4325 | /* Called when writing out an object file to decide the type of a |
4326 | symbol. */ | |
4327 | static int | |
4328 | elf32_hppa_elf_get_symbol_type (elf_sym, type) | |
4329 | Elf_Internal_Sym *elf_sym; | |
4330 | int type; | |
4331 | { | |
4332 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4333 | return STT_PARISC_MILLI; | |
4334 | else | |
4335 | return type; | |
252b5132 RH |
4336 | } |
4337 | ||
4338 | /* Misc BFD support code. */ | |
30667bf3 AM |
4339 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4340 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4341 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4342 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4343 | |
252b5132 | 4344 | /* Stuff for the BFD linker. */ |
c46b7515 | 4345 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 AM |
4346 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
4347 | #define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook | |
4348 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol | |
4349 | #define elf_backend_check_relocs elf32_hppa_check_relocs | |
4350 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4351 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4352 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4353 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4354 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4355 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4356 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4357 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4358 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
4359 | #define elf_backend_object_p elf32_hppa_object_p | |
4360 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d952f17a | 4361 | #define elf_backend_post_process_headers elf32_hppa_post_process_headers |
30667bf3 | 4362 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
98ceb8ce | 4363 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
30667bf3 AM |
4364 | |
4365 | #define elf_backend_can_gc_sections 1 | |
4366 | #define elf_backend_plt_alignment 2 | |
4367 | #define elf_backend_want_got_plt 0 | |
4368 | #define elf_backend_plt_readonly 0 | |
4369 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4370 | #define elf_backend_got_header_size 8 |
252b5132 RH |
4371 | |
4372 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4373 | #define TARGET_BIG_NAME "elf32-hppa" | |
4374 | #define ELF_ARCH bfd_arch_hppa | |
4375 | #define ELF_MACHINE_CODE EM_PARISC | |
4376 | #define ELF_MAXPAGESIZE 0x1000 | |
4377 | ||
4378 | #include "elf32-target.h" | |
d952f17a AM |
4379 | |
4380 | #undef TARGET_BIG_SYM | |
4381 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec | |
4382 | #undef TARGET_BIG_NAME | |
4383 | #define TARGET_BIG_NAME "elf32-hppa-linux" | |
4384 | ||
4385 | #define INCLUDED_TARGET_FILE 1 | |
4386 | #include "elf32-target.h" |