Commit | Line | Data |
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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; | |
30667bf3 AM |
216 | }; |
217 | ||
30667bf3 AM |
218 | struct elf32_hppa_link_hash_table { |
219 | ||
252b5132 | 220 | /* The main hash table. */ |
ebe50bae | 221 | struct elf_link_hash_table elf; |
252b5132 RH |
222 | |
223 | /* The stub hash table. */ | |
edd21aca | 224 | struct bfd_hash_table stub_hash_table; |
252b5132 | 225 | |
30667bf3 AM |
226 | /* Linker stub bfd. */ |
227 | bfd *stub_bfd; | |
228 | ||
30667bf3 AM |
229 | /* Linker call-backs. */ |
230 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
231 | void (*layout_sections_again) PARAMS ((void)); | |
232 | ||
25f72752 AM |
233 | /* Array to keep track of which stub sections have been created, and |
234 | information on stub grouping. */ | |
235 | struct map_stub { | |
236 | /* This is the section to which stubs in the group will be | |
237 | attached. */ | |
238 | asection *link_sec; | |
239 | /* The stub section. */ | |
240 | asection *stub_sec; | |
25f72752 | 241 | } *stub_group; |
30667bf3 | 242 | |
30667bf3 AM |
243 | /* Short-cuts to get to dynamic linker sections. */ |
244 | asection *sgot; | |
245 | asection *srelgot; | |
246 | asection *splt; | |
247 | asection *srelplt; | |
248 | asection *sdynbss; | |
249 | asection *srelbss; | |
47d89dba | 250 | |
c46b7515 AM |
251 | /* Used during a final link to store the base of the text and data |
252 | segments so that we can perform SEGREL relocations. */ | |
253 | bfd_vma text_segment_base; | |
254 | bfd_vma data_segment_base; | |
255 | ||
47d89dba AM |
256 | /* Whether we support multiple sub-spaces for shared libs. */ |
257 | unsigned int multi_subspace:1; | |
258 | ||
259 | /* Flags set when PCREL12F and PCREL17F branches detected. Used to | |
260 | select suitable defaults for the stub group size. */ | |
261 | unsigned int has_12bit_branch:1; | |
262 | unsigned int has_17bit_branch:1; | |
263 | ||
264 | /* Set if we need a .plt stub to support lazy dynamic linking. */ | |
265 | unsigned int need_plt_stub:1; | |
252b5132 RH |
266 | }; |
267 | ||
30667bf3 AM |
268 | /* Various hash macros and functions. */ |
269 | #define hppa_link_hash_table(p) \ | |
edd21aca | 270 | ((struct elf32_hppa_link_hash_table *) ((p)->hash)) |
252b5132 | 271 | |
30667bf3 AM |
272 | #define hppa_stub_hash_lookup(table, string, create, copy) \ |
273 | ((struct elf32_hppa_stub_hash_entry *) \ | |
274 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
275 | ||
276 | static struct bfd_hash_entry *stub_hash_newfunc | |
277 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
edd21aca | 278 | |
30667bf3 | 279 | static struct bfd_hash_entry *hppa_link_hash_newfunc |
edd21aca | 280 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
252b5132 RH |
281 | |
282 | static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create | |
283 | PARAMS ((bfd *)); | |
284 | ||
30667bf3 AM |
285 | /* Stub handling functions. */ |
286 | static char *hppa_stub_name | |
287 | PARAMS ((const asection *, const asection *, | |
288 | const struct elf32_hppa_link_hash_entry *, | |
289 | const Elf_Internal_Rela *)); | |
edd21aca | 290 | |
30667bf3 AM |
291 | static struct elf32_hppa_stub_hash_entry *hppa_get_stub_entry |
292 | PARAMS ((const asection *, const asection *, | |
293 | struct elf32_hppa_link_hash_entry *, | |
25f72752 AM |
294 | const Elf_Internal_Rela *, |
295 | struct elf32_hppa_link_hash_table *)); | |
edd21aca | 296 | |
30667bf3 | 297 | static struct elf32_hppa_stub_hash_entry *hppa_add_stub |
25f72752 | 298 | PARAMS ((const char *, asection *, struct elf32_hppa_link_hash_table *)); |
30667bf3 AM |
299 | |
300 | static enum elf32_hppa_stub_type hppa_type_of_stub | |
301 | PARAMS ((asection *, const Elf_Internal_Rela *, | |
302 | struct elf32_hppa_link_hash_entry *, bfd_vma)); | |
303 | ||
304 | static boolean hppa_build_one_stub | |
305 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
306 | ||
307 | static boolean hppa_size_one_stub | |
308 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
309 | ||
30667bf3 AM |
310 | /* BFD and elf backend functions. */ |
311 | static boolean elf32_hppa_object_p PARAMS ((bfd *)); | |
252b5132 | 312 | |
edd21aca AM |
313 | static boolean elf32_hppa_add_symbol_hook |
314 | PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, | |
315 | const char **, flagword *, asection **, bfd_vma *)); | |
252b5132 | 316 | |
30667bf3 AM |
317 | static boolean elf32_hppa_create_dynamic_sections |
318 | PARAMS ((bfd *, struct bfd_link_info *)); | |
252b5132 | 319 | |
ebe50bae AM |
320 | static void elf32_hppa_copy_indirect_symbol |
321 | PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *)); | |
322 | ||
30667bf3 AM |
323 | static boolean elf32_hppa_check_relocs |
324 | PARAMS ((bfd *, struct bfd_link_info *, | |
325 | asection *, const Elf_Internal_Rela *)); | |
326 | ||
327 | static asection *elf32_hppa_gc_mark_hook | |
328 | PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *, | |
329 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
330 | ||
331 | static boolean elf32_hppa_gc_sweep_hook | |
332 | PARAMS ((bfd *, struct bfd_link_info *, | |
333 | asection *, const Elf_Internal_Rela *)); | |
334 | ||
74d1c347 AM |
335 | static void elf32_hppa_hide_symbol |
336 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
337 | ||
30667bf3 AM |
338 | static boolean elf32_hppa_adjust_dynamic_symbol |
339 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
340 | ||
a8d02d66 AM |
341 | static boolean mark_PIC_calls |
342 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
343 | ||
344 | static boolean allocate_PIC_calls | |
30667bf3 AM |
345 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
346 | ||
98ceb8ce AM |
347 | static boolean allocate_dynrelocs |
348 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
349 | ||
350 | static boolean readonly_dynrelocs | |
30667bf3 | 351 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
30667bf3 | 352 | |
d5c73c2f AM |
353 | static boolean clobber_millicode_symbols |
354 | PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *)); | |
355 | ||
30667bf3 AM |
356 | static boolean elf32_hppa_size_dynamic_sections |
357 | PARAMS ((bfd *, struct bfd_link_info *)); | |
358 | ||
c46b7515 AM |
359 | static boolean elf32_hppa_final_link |
360 | PARAMS ((bfd *, struct bfd_link_info *)); | |
361 | ||
362 | static void hppa_record_segment_addr | |
363 | PARAMS ((bfd *, asection *, PTR)); | |
364 | ||
30667bf3 AM |
365 | static bfd_reloc_status_type final_link_relocate |
366 | PARAMS ((asection *, bfd_byte *, const Elf_Internal_Rela *, | |
25f72752 | 367 | bfd_vma, struct elf32_hppa_link_hash_table *, asection *, |
30667bf3 AM |
368 | struct elf32_hppa_link_hash_entry *)); |
369 | ||
370 | static boolean elf32_hppa_relocate_section | |
371 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, | |
372 | bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
373 | ||
c46b7515 AM |
374 | static int hppa_unwind_entry_compare |
375 | PARAMS ((const PTR, const PTR)); | |
376 | ||
30667bf3 AM |
377 | static boolean elf32_hppa_finish_dynamic_symbol |
378 | PARAMS ((bfd *, struct bfd_link_info *, | |
379 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
380 | ||
98ceb8ce AM |
381 | static enum elf_reloc_type_class elf32_hppa_reloc_type_class |
382 | PARAMS ((const Elf_Internal_Rela *)); | |
383 | ||
30667bf3 AM |
384 | static boolean elf32_hppa_finish_dynamic_sections |
385 | PARAMS ((bfd *, struct bfd_link_info *)); | |
386 | ||
d952f17a AM |
387 | static void elf32_hppa_post_process_headers |
388 | PARAMS ((bfd *, struct bfd_link_info *)); | |
389 | ||
30667bf3 AM |
390 | static int elf32_hppa_elf_get_symbol_type |
391 | PARAMS ((Elf_Internal_Sym *, int)); | |
252b5132 | 392 | |
252b5132 RH |
393 | /* Assorted hash table functions. */ |
394 | ||
395 | /* Initialize an entry in the stub hash table. */ | |
396 | ||
397 | static struct bfd_hash_entry * | |
30667bf3 | 398 | stub_hash_newfunc (entry, table, string) |
252b5132 RH |
399 | struct bfd_hash_entry *entry; |
400 | struct bfd_hash_table *table; | |
401 | const char *string; | |
402 | { | |
252b5132 RH |
403 | /* Allocate the structure if it has not already been allocated by a |
404 | subclass. */ | |
ebe50bae | 405 | if (entry == NULL) |
30667bf3 | 406 | { |
ebe50bae AM |
407 | entry = bfd_hash_allocate (table, |
408 | sizeof (struct elf32_hppa_stub_hash_entry)); | |
409 | if (entry == NULL) | |
410 | return entry; | |
30667bf3 | 411 | } |
252b5132 RH |
412 | |
413 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
414 | entry = bfd_hash_newfunc (entry, table, string); |
415 | if (entry != NULL) | |
252b5132 | 416 | { |
ebe50bae AM |
417 | struct elf32_hppa_stub_hash_entry *eh; |
418 | ||
252b5132 | 419 | /* Initialize the local fields. */ |
ebe50bae AM |
420 | eh = (struct elf32_hppa_stub_hash_entry *) entry; |
421 | eh->stub_sec = NULL; | |
422 | eh->stub_offset = 0; | |
423 | eh->target_value = 0; | |
424 | eh->target_section = NULL; | |
425 | eh->stub_type = hppa_stub_long_branch; | |
426 | eh->h = NULL; | |
427 | eh->id_sec = NULL; | |
30667bf3 AM |
428 | } |
429 | ||
ebe50bae | 430 | return entry; |
30667bf3 AM |
431 | } |
432 | ||
30667bf3 AM |
433 | /* Initialize an entry in the link hash table. */ |
434 | ||
435 | static struct bfd_hash_entry * | |
436 | hppa_link_hash_newfunc (entry, table, string) | |
437 | struct bfd_hash_entry *entry; | |
438 | struct bfd_hash_table *table; | |
439 | const char *string; | |
440 | { | |
30667bf3 AM |
441 | /* Allocate the structure if it has not already been allocated by a |
442 | subclass. */ | |
ebe50bae | 443 | if (entry == NULL) |
30667bf3 | 444 | { |
ebe50bae AM |
445 | entry = bfd_hash_allocate (table, |
446 | sizeof (struct elf32_hppa_link_hash_entry)); | |
447 | if (entry == NULL) | |
448 | return entry; | |
30667bf3 AM |
449 | } |
450 | ||
451 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
452 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
453 | if (entry != NULL) | |
30667bf3 | 454 | { |
ebe50bae AM |
455 | struct elf32_hppa_link_hash_entry *eh; |
456 | ||
30667bf3 | 457 | /* Initialize the local fields. */ |
ebe50bae AM |
458 | eh = (struct elf32_hppa_link_hash_entry *) entry; |
459 | eh->stub_cache = NULL; | |
460 | eh->dyn_relocs = NULL; | |
461 | eh->maybe_pic_call = 0; | |
462 | eh->pic_call = 0; | |
463 | eh->plabel = 0; | |
252b5132 RH |
464 | } |
465 | ||
ebe50bae | 466 | return entry; |
252b5132 RH |
467 | } |
468 | ||
252b5132 RH |
469 | /* Create the derived linker hash table. The PA ELF port uses the derived |
470 | hash table to keep information specific to the PA ELF linker (without | |
471 | using static variables). */ | |
472 | ||
473 | static struct bfd_link_hash_table * | |
474 | elf32_hppa_link_hash_table_create (abfd) | |
475 | bfd *abfd; | |
476 | { | |
477 | struct elf32_hppa_link_hash_table *ret; | |
dc810e39 | 478 | bfd_size_type amt = sizeof (*ret); |
252b5132 | 479 | |
dc810e39 | 480 | ret = (struct elf32_hppa_link_hash_table *) bfd_alloc (abfd, amt); |
252b5132 RH |
481 | if (ret == NULL) |
482 | return NULL; | |
edd21aca | 483 | |
ebe50bae | 484 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, hppa_link_hash_newfunc)) |
252b5132 RH |
485 | { |
486 | bfd_release (abfd, ret); | |
487 | return NULL; | |
488 | } | |
edd21aca AM |
489 | |
490 | /* Init the stub hash table too. */ | |
30667bf3 | 491 | if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc)) |
edd21aca AM |
492 | return NULL; |
493 | ||
30667bf3 | 494 | ret->stub_bfd = NULL; |
30667bf3 AM |
495 | ret->add_stub_section = NULL; |
496 | ret->layout_sections_again = NULL; | |
25f72752 | 497 | ret->stub_group = NULL; |
30667bf3 AM |
498 | ret->sgot = NULL; |
499 | ret->srelgot = NULL; | |
500 | ret->splt = NULL; | |
501 | ret->srelplt = NULL; | |
502 | ret->sdynbss = NULL; | |
503 | ret->srelbss = NULL; | |
c46b7515 AM |
504 | ret->text_segment_base = (bfd_vma) -1; |
505 | ret->data_segment_base = (bfd_vma) -1; | |
47d89dba AM |
506 | ret->multi_subspace = 0; |
507 | ret->has_12bit_branch = 0; | |
508 | ret->has_17bit_branch = 0; | |
509 | ret->need_plt_stub = 0; | |
252b5132 | 510 | |
ebe50bae | 511 | return &ret->elf.root; |
252b5132 RH |
512 | } |
513 | ||
30667bf3 AM |
514 | /* Build a name for an entry in the stub hash table. */ |
515 | ||
edd21aca | 516 | static char * |
30667bf3 | 517 | hppa_stub_name (input_section, sym_sec, hash, rel) |
edd21aca | 518 | const asection *input_section; |
30667bf3 AM |
519 | const asection *sym_sec; |
520 | const struct elf32_hppa_link_hash_entry *hash; | |
521 | const Elf_Internal_Rela *rel; | |
edd21aca AM |
522 | { |
523 | char *stub_name; | |
dc810e39 | 524 | bfd_size_type len; |
edd21aca | 525 | |
30667bf3 AM |
526 | if (hash) |
527 | { | |
528 | len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1; | |
529 | stub_name = bfd_malloc (len); | |
530 | if (stub_name != NULL) | |
531 | { | |
532 | sprintf (stub_name, "%08x_%s+%x", | |
533 | input_section->id & 0xffffffff, | |
534 | hash->elf.root.root.string, | |
535 | (int) rel->r_addend & 0xffffffff); | |
536 | } | |
537 | } | |
538 | else | |
edd21aca | 539 | { |
30667bf3 AM |
540 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
541 | stub_name = bfd_malloc (len); | |
542 | if (stub_name != NULL) | |
543 | { | |
544 | sprintf (stub_name, "%08x_%x:%x+%x", | |
545 | input_section->id & 0xffffffff, | |
546 | sym_sec->id & 0xffffffff, | |
547 | (int) ELF32_R_SYM (rel->r_info) & 0xffffffff, | |
548 | (int) rel->r_addend & 0xffffffff); | |
549 | } | |
edd21aca AM |
550 | } |
551 | return stub_name; | |
552 | } | |
252b5132 | 553 | |
30667bf3 AM |
554 | /* Look up an entry in the stub hash. Stub entries are cached because |
555 | creating the stub name takes a bit of time. */ | |
556 | ||
557 | static struct elf32_hppa_stub_hash_entry * | |
83c81bfe | 558 | hppa_get_stub_entry (input_section, sym_sec, hash, rel, htab) |
30667bf3 AM |
559 | const asection *input_section; |
560 | const asection *sym_sec; | |
561 | struct elf32_hppa_link_hash_entry *hash; | |
562 | const Elf_Internal_Rela *rel; | |
83c81bfe | 563 | struct elf32_hppa_link_hash_table *htab; |
252b5132 | 564 | { |
30667bf3 | 565 | struct elf32_hppa_stub_hash_entry *stub_entry; |
25f72752 AM |
566 | const asection *id_sec; |
567 | ||
568 | /* If this input section is part of a group of sections sharing one | |
569 | stub section, then use the id of the first section in the group. | |
570 | Stub names need to include a section id, as there may well be | |
571 | more than one stub used to reach say, printf, and we need to | |
572 | distinguish between them. */ | |
83c81bfe | 573 | id_sec = htab->stub_group[input_section->id].link_sec; |
edd21aca | 574 | |
30667bf3 AM |
575 | if (hash != NULL && hash->stub_cache != NULL |
576 | && hash->stub_cache->h == hash | |
25f72752 | 577 | && hash->stub_cache->id_sec == id_sec) |
edd21aca | 578 | { |
30667bf3 AM |
579 | stub_entry = hash->stub_cache; |
580 | } | |
581 | else | |
582 | { | |
30667bf3 | 583 | char *stub_name; |
edd21aca | 584 | |
25f72752 | 585 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, rel); |
30667bf3 AM |
586 | if (stub_name == NULL) |
587 | return NULL; | |
edd21aca | 588 | |
83c81bfe | 589 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
25f72752 | 590 | stub_name, false, false); |
30667bf3 AM |
591 | if (stub_entry == NULL) |
592 | { | |
593 | if (hash == NULL || hash->elf.root.type != bfd_link_hash_undefweak) | |
594 | (*_bfd_error_handler) (_("%s(%s+0x%lx): cannot find stub entry %s"), | |
8f615d07 | 595 | bfd_archive_filename (input_section->owner), |
30667bf3 AM |
596 | input_section->name, |
597 | (long) rel->r_offset, | |
598 | stub_name); | |
599 | } | |
600 | else | |
601 | { | |
602 | if (hash != NULL) | |
603 | hash->stub_cache = stub_entry; | |
604 | } | |
605 | ||
606 | free (stub_name); | |
edd21aca | 607 | } |
30667bf3 AM |
608 | |
609 | return stub_entry; | |
610 | } | |
611 | ||
30667bf3 AM |
612 | /* Add a new stub entry to the stub hash. Not all fields of the new |
613 | stub entry are initialised. */ | |
614 | ||
615 | static struct elf32_hppa_stub_hash_entry * | |
83c81bfe | 616 | hppa_add_stub (stub_name, section, htab) |
30667bf3 AM |
617 | const char *stub_name; |
618 | asection *section; | |
83c81bfe | 619 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 620 | { |
25f72752 | 621 | asection *link_sec; |
30667bf3 | 622 | asection *stub_sec; |
30667bf3 | 623 | struct elf32_hppa_stub_hash_entry *stub_entry; |
edd21aca | 624 | |
83c81bfe AM |
625 | link_sec = htab->stub_group[section->id].link_sec; |
626 | stub_sec = htab->stub_group[section->id].stub_sec; | |
30667bf3 | 627 | if (stub_sec == NULL) |
edd21aca | 628 | { |
83c81bfe | 629 | stub_sec = htab->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
630 | if (stub_sec == NULL) |
631 | { | |
dc810e39 | 632 | bfd_size_type len; |
30667bf3 AM |
633 | char *s_name; |
634 | ||
25f72752 | 635 | len = strlen (link_sec->name) + sizeof (STUB_SUFFIX); |
83c81bfe | 636 | s_name = bfd_alloc (htab->stub_bfd, len); |
30667bf3 AM |
637 | if (s_name == NULL) |
638 | return NULL; | |
639 | ||
25f72752 | 640 | strcpy (s_name, link_sec->name); |
30667bf3 | 641 | strcpy (s_name + len - sizeof (STUB_SUFFIX), STUB_SUFFIX); |
83c81bfe | 642 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
643 | if (stub_sec == NULL) |
644 | return NULL; | |
83c81bfe | 645 | htab->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 646 | } |
83c81bfe | 647 | htab->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 648 | } |
252b5132 | 649 | |
30667bf3 | 650 | /* Enter this entry into the linker stub hash table. */ |
83c81bfe | 651 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
30667bf3 AM |
652 | true, false); |
653 | if (stub_entry == NULL) | |
654 | { | |
655 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
8f615d07 | 656 | bfd_archive_filename (section->owner), |
30667bf3 AM |
657 | stub_name); |
658 | return NULL; | |
edd21aca AM |
659 | } |
660 | ||
30667bf3 | 661 | stub_entry->stub_sec = stub_sec; |
30667bf3 | 662 | stub_entry->stub_offset = 0; |
25f72752 | 663 | stub_entry->id_sec = link_sec; |
30667bf3 | 664 | return stub_entry; |
edd21aca AM |
665 | } |
666 | ||
30667bf3 AM |
667 | /* Determine the type of stub needed, if any, for a call. */ |
668 | ||
669 | static enum elf32_hppa_stub_type | |
670 | hppa_type_of_stub (input_sec, rel, hash, destination) | |
671 | asection *input_sec; | |
672 | const Elf_Internal_Rela *rel; | |
673 | struct elf32_hppa_link_hash_entry *hash; | |
674 | bfd_vma destination; | |
edd21aca | 675 | { |
edd21aca | 676 | bfd_vma location; |
30667bf3 AM |
677 | bfd_vma branch_offset; |
678 | bfd_vma max_branch_offset; | |
679 | unsigned int r_type; | |
680 | ||
681 | if (hash != NULL | |
682 | && (((hash->elf.root.type == bfd_link_hash_defined | |
74d1c347 AM |
683 | || hash->elf.root.type == bfd_link_hash_defweak) |
684 | && hash->elf.root.u.def.section->output_section == NULL) | |
685 | || (hash->elf.root.type == bfd_link_hash_defweak | |
686 | && hash->elf.dynindx != -1 | |
687 | && hash->elf.plt.offset != (bfd_vma) -1) | |
30667bf3 AM |
688 | || hash->elf.root.type == bfd_link_hash_undefweak |
689 | || hash->elf.root.type == bfd_link_hash_undefined | |
12cca0d2 | 690 | || (hash->maybe_pic_call && !(input_sec->flags & SEC_HAS_GOT_REF)))) |
30667bf3 AM |
691 | { |
692 | /* If output_section is NULL, then it's a symbol defined in a | |
693 | shared library. We will need an import stub. Decide between | |
74d1c347 AM |
694 | hppa_stub_import and hppa_stub_import_shared later. For |
695 | shared links we need stubs for undefined or weak syms too; | |
696 | They will presumably be resolved by the dynamic linker. */ | |
30667bf3 AM |
697 | return hppa_stub_import; |
698 | } | |
edd21aca | 699 | |
30667bf3 AM |
700 | /* Determine where the call point is. */ |
701 | location = (input_sec->output_offset | |
702 | + input_sec->output_section->vma | |
703 | + rel->r_offset); | |
edd21aca | 704 | |
30667bf3 AM |
705 | branch_offset = destination - location - 8; |
706 | r_type = ELF32_R_TYPE (rel->r_info); | |
edd21aca | 707 | |
30667bf3 AM |
708 | /* Determine if a long branch stub is needed. parisc branch offsets |
709 | are relative to the second instruction past the branch, ie. +8 | |
710 | bytes on from the branch instruction location. The offset is | |
711 | signed and counts in units of 4 bytes. */ | |
712 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 713 | { |
30667bf3 AM |
714 | max_branch_offset = (1 << (17-1)) << 2; |
715 | } | |
716 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
717 | { | |
718 | max_branch_offset = (1 << (12-1)) << 2; | |
719 | } | |
25f72752 | 720 | else /* R_PARISC_PCREL22F. */ |
30667bf3 AM |
721 | { |
722 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
723 | } |
724 | ||
30667bf3 | 725 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
726 | return hppa_stub_long_branch; |
727 | ||
30667bf3 AM |
728 | return hppa_stub_none; |
729 | } | |
edd21aca | 730 | |
30667bf3 AM |
731 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
732 | IN_ARG contains the link info pointer. */ | |
edd21aca | 733 | |
30667bf3 AM |
734 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
735 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 736 | |
30667bf3 | 737 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 738 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 739 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 740 | |
3ee1d854 AM |
741 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
742 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 743 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 744 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 745 | |
3ee1d854 AM |
746 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
747 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 748 | |
30667bf3 AM |
749 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
750 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
751 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
752 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 753 | |
30667bf3 AM |
754 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
755 | #define NOP 0x08000240 /* nop */ | |
756 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
757 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
758 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 759 | |
30667bf3 AM |
760 | #ifndef R19_STUBS |
761 | #define R19_STUBS 1 | |
762 | #endif | |
edd21aca | 763 | |
30667bf3 AM |
764 | #if R19_STUBS |
765 | #define LDW_R1_DLT LDW_R1_R19 | |
766 | #else | |
767 | #define LDW_R1_DLT LDW_R1_DP | |
768 | #endif | |
edd21aca | 769 | |
30667bf3 AM |
770 | static boolean |
771 | hppa_build_one_stub (gen_entry, in_arg) | |
772 | struct bfd_hash_entry *gen_entry; | |
773 | PTR in_arg; | |
774 | { | |
775 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
776 | struct bfd_link_info *info; | |
83c81bfe | 777 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
778 | asection *stub_sec; |
779 | bfd *stub_bfd; | |
780 | bfd_byte *loc; | |
781 | bfd_vma sym_value; | |
74d1c347 | 782 | bfd_vma insn; |
8dea1268 | 783 | bfd_vma off; |
74d1c347 | 784 | int val; |
30667bf3 | 785 | int size; |
edd21aca | 786 | |
30667bf3 AM |
787 | /* Massage our args to the form they really have. */ |
788 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
789 | info = (struct bfd_link_info *) in_arg; | |
790 | ||
83c81bfe | 791 | htab = hppa_link_hash_table (info); |
30667bf3 | 792 | stub_sec = stub_entry->stub_sec; |
edd21aca | 793 | |
30667bf3 | 794 | /* Make a note of the offset within the stubs for this entry. */ |
74d1c347 | 795 | stub_entry->stub_offset = stub_sec->_raw_size; |
30667bf3 | 796 | loc = stub_sec->contents + stub_entry->stub_offset; |
252b5132 | 797 | |
30667bf3 AM |
798 | stub_bfd = stub_sec->owner; |
799 | ||
800 | switch (stub_entry->stub_type) | |
801 | { | |
802 | case hppa_stub_long_branch: | |
803 | /* Create the long branch. A long branch is formed with "ldil" | |
804 | loading the upper bits of the target address into a register, | |
805 | then branching with "be" which adds in the lower bits. | |
806 | The "be" has its delay slot nullified. */ | |
807 | sym_value = (stub_entry->target_value | |
808 | + stub_entry->target_section->output_offset | |
809 | + stub_entry->target_section->output_section->vma); | |
810 | ||
74d1c347 AM |
811 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel); |
812 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); | |
30667bf3 AM |
813 | bfd_put_32 (stub_bfd, insn, loc); |
814 | ||
74d1c347 AM |
815 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel) >> 2; |
816 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); | |
30667bf3 AM |
817 | bfd_put_32 (stub_bfd, insn, loc + 4); |
818 | ||
30667bf3 | 819 | size = 8; |
edd21aca AM |
820 | break; |
821 | ||
30667bf3 AM |
822 | case hppa_stub_long_branch_shared: |
823 | /* Branches are relative. This is where we are going to. */ | |
824 | sym_value = (stub_entry->target_value | |
825 | + stub_entry->target_section->output_offset | |
826 | + stub_entry->target_section->output_section->vma); | |
827 | ||
828 | /* And this is where we are coming from, more or less. */ | |
829 | sym_value -= (stub_entry->stub_offset | |
830 | + stub_sec->output_offset | |
831 | + stub_sec->output_section->vma); | |
832 | ||
74d1c347 | 833 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 834 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 835 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
836 | bfd_put_32 (stub_bfd, insn, loc + 4); |
837 | ||
47d89dba | 838 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 839 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
840 | bfd_put_32 (stub_bfd, insn, loc + 8); |
841 | size = 12; | |
842 | break; | |
edd21aca | 843 | |
30667bf3 AM |
844 | case hppa_stub_import: |
845 | case hppa_stub_import_shared: | |
8dea1268 AM |
846 | off = stub_entry->h->elf.plt.offset; |
847 | if (off >= (bfd_vma) -2) | |
49e9d0d3 | 848 | abort (); |
8dea1268 AM |
849 | |
850 | off &= ~ (bfd_vma) 1; | |
851 | sym_value = (off | |
83c81bfe AM |
852 | + htab->splt->output_offset |
853 | + htab->splt->output_section->vma | |
854 | - elf_gp (htab->splt->output_section->owner)); | |
30667bf3 AM |
855 | |
856 | insn = ADDIL_DP; | |
857 | #if R19_STUBS | |
858 | if (stub_entry->stub_type == hppa_stub_import_shared) | |
859 | insn = ADDIL_R19; | |
860 | #endif | |
47d89dba | 861 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel), |
74d1c347 | 862 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 863 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 864 | |
47d89dba AM |
865 | /* It is critical to use lrsel/rrsel here because we are using |
866 | two different offsets (+0 and +4) from sym_value. If we use | |
867 | lsel/rsel then with unfortunate sym_values we will round | |
868 | sym_value+4 up to the next 2k block leading to a mis-match | |
869 | between the lsel and rsel value. */ | |
870 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel); | |
74d1c347 | 871 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 872 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 873 | |
83c81bfe | 874 | if (htab->multi_subspace) |
30667bf3 | 875 | { |
47d89dba | 876 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 877 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 878 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 879 | |
74d1c347 AM |
880 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
881 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
882 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
883 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 884 | |
30667bf3 AM |
885 | size = 28; |
886 | } | |
887 | else | |
888 | { | |
74d1c347 | 889 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 890 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 891 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 892 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 893 | |
30667bf3 AM |
894 | size = 16; |
895 | } | |
252b5132 | 896 | |
30667bf3 AM |
897 | if (!info->shared |
898 | && stub_entry->h != NULL | |
899 | && stub_entry->h->pic_call) | |
252b5132 | 900 | { |
30667bf3 AM |
901 | /* Build the .plt entry needed to call a PIC function from |
902 | statically linked code. We don't need any relocs. */ | |
903 | bfd *dynobj; | |
904 | struct elf32_hppa_link_hash_entry *eh; | |
905 | bfd_vma value; | |
252b5132 | 906 | |
ebe50bae | 907 | dynobj = htab->elf.dynobj; |
30667bf3 | 908 | eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h; |
252b5132 | 909 | |
49e9d0d3 AM |
910 | if (eh->elf.root.type != bfd_link_hash_defined |
911 | && eh->elf.root.type != bfd_link_hash_defweak) | |
912 | abort (); | |
252b5132 | 913 | |
30667bf3 AM |
914 | value = (eh->elf.root.u.def.value |
915 | + eh->elf.root.u.def.section->output_offset | |
916 | + eh->elf.root.u.def.section->output_section->vma); | |
252b5132 | 917 | |
30667bf3 | 918 | /* Fill in the entry in the procedure linkage table. |
252b5132 | 919 | |
30667bf3 | 920 | The format of a plt entry is |
74d1c347 AM |
921 | <funcaddr> |
922 | <__gp>. */ | |
252b5132 | 923 | |
83c81bfe AM |
924 | bfd_put_32 (htab->splt->owner, value, |
925 | htab->splt->contents + off); | |
926 | value = elf_gp (htab->splt->output_section->owner); | |
927 | bfd_put_32 (htab->splt->owner, value, | |
928 | htab->splt->contents + off + 4); | |
252b5132 | 929 | } |
30667bf3 | 930 | break; |
252b5132 | 931 | |
30667bf3 AM |
932 | case hppa_stub_export: |
933 | /* Branches are relative. This is where we are going to. */ | |
934 | sym_value = (stub_entry->target_value | |
935 | + stub_entry->target_section->output_offset | |
936 | + stub_entry->target_section->output_section->vma); | |
252b5132 | 937 | |
30667bf3 AM |
938 | /* And this is where we are coming from. */ |
939 | sym_value -= (stub_entry->stub_offset | |
940 | + stub_sec->output_offset | |
941 | + stub_sec->output_section->vma); | |
edd21aca | 942 | |
30667bf3 AM |
943 | if (sym_value - 8 + 0x40000 >= 0x80000) |
944 | { | |
edd21aca | 945 | (*_bfd_error_handler) |
30667bf3 | 946 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
8f615d07 | 947 | bfd_archive_filename (stub_entry->target_section->owner), |
30667bf3 AM |
948 | stub_sec->name, |
949 | (long) stub_entry->stub_offset, | |
950 | stub_entry->root.string); | |
951 | bfd_set_error (bfd_error_bad_value); | |
edd21aca | 952 | return false; |
252b5132 | 953 | } |
30667bf3 | 954 | |
74d1c347 AM |
955 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
956 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
30667bf3 AM |
957 | bfd_put_32 (stub_bfd, insn, loc); |
958 | ||
74d1c347 AM |
959 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
960 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
961 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
962 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
963 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
964 | |
965 | /* Point the function symbol at the stub. */ | |
966 | stub_entry->h->elf.root.u.def.section = stub_sec; | |
74d1c347 | 967 | stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size; |
30667bf3 AM |
968 | |
969 | size = 24; | |
970 | break; | |
971 | ||
972 | default: | |
973 | BFD_FAIL (); | |
974 | return false; | |
252b5132 RH |
975 | } |
976 | ||
74d1c347 | 977 | stub_sec->_raw_size += size; |
252b5132 RH |
978 | return true; |
979 | } | |
980 | ||
30667bf3 AM |
981 | #undef LDIL_R1 |
982 | #undef BE_SR4_R1 | |
983 | #undef BL_R1 | |
984 | #undef ADDIL_R1 | |
985 | #undef DEPI_R1 | |
986 | #undef ADDIL_DP | |
987 | #undef LDW_R1_R21 | |
988 | #undef LDW_R1_DLT | |
989 | #undef LDW_R1_R19 | |
990 | #undef ADDIL_R19 | |
991 | #undef LDW_R1_DP | |
992 | #undef LDSID_R21_R1 | |
993 | #undef MTSP_R1 | |
994 | #undef BE_SR0_R21 | |
995 | #undef STW_RP | |
996 | #undef BV_R0_R21 | |
997 | #undef BL_RP | |
998 | #undef NOP | |
999 | #undef LDW_RP | |
1000 | #undef LDSID_RP_R1 | |
1001 | #undef BE_SR0_RP | |
252b5132 | 1002 | |
30667bf3 AM |
1003 | /* As above, but don't actually build the stub. Just bump offset so |
1004 | we know stub section sizes. */ | |
1005 | ||
1006 | static boolean | |
1007 | hppa_size_one_stub (gen_entry, in_arg) | |
1008 | struct bfd_hash_entry *gen_entry; | |
1009 | PTR in_arg; | |
252b5132 | 1010 | { |
30667bf3 | 1011 | struct elf32_hppa_stub_hash_entry *stub_entry; |
83c81bfe | 1012 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1013 | int size; |
1014 | ||
1015 | /* Massage our args to the form they really have. */ | |
1016 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
83c81bfe | 1017 | htab = (struct elf32_hppa_link_hash_table *) in_arg; |
30667bf3 AM |
1018 | |
1019 | if (stub_entry->stub_type == hppa_stub_long_branch) | |
98ceb8ce | 1020 | size = 8; |
30667bf3 AM |
1021 | else if (stub_entry->stub_type == hppa_stub_long_branch_shared) |
1022 | size = 12; | |
1023 | else if (stub_entry->stub_type == hppa_stub_export) | |
1024 | size = 24; | |
74d1c347 | 1025 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 1026 | { |
83c81bfe | 1027 | if (htab->multi_subspace) |
30667bf3 AM |
1028 | size = 28; |
1029 | else | |
1030 | size = 16; | |
1031 | } | |
252b5132 | 1032 | |
74d1c347 | 1033 | stub_entry->stub_sec->_raw_size += size; |
30667bf3 AM |
1034 | return true; |
1035 | } | |
252b5132 | 1036 | |
30667bf3 AM |
1037 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
1038 | Additionally we set the default architecture and machine. */ | |
1039 | ||
1040 | static boolean | |
1041 | elf32_hppa_object_p (abfd) | |
1042 | bfd *abfd; | |
1043 | { | |
24a5e751 L |
1044 | Elf_Internal_Ehdr * i_ehdrp; |
1045 | unsigned int flags; | |
252b5132 | 1046 | |
24a5e751 L |
1047 | i_ehdrp = elf_elfheader (abfd); |
1048 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
1049 | { | |
1050 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX) | |
1051 | return false; | |
1052 | } | |
1053 | else | |
1054 | { | |
1055 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
1056 | return false; | |
1057 | } | |
1058 | ||
1059 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
1060 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
1061 | { | |
1062 | case EFA_PARISC_1_0: | |
1063 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
1064 | case EFA_PARISC_1_1: | |
1065 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
1066 | case EFA_PARISC_2_0: | |
1067 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
1068 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
1069 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
1070 | } | |
1071 | return true; | |
252b5132 RH |
1072 | } |
1073 | ||
252b5132 RH |
1074 | /* Undo the generic ELF code's subtraction of section->vma from the |
1075 | value of each external symbol. */ | |
1076 | ||
1077 | static boolean | |
1078 | elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
5f771d47 ILT |
1079 | bfd *abfd ATTRIBUTE_UNUSED; |
1080 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1081 | const Elf_Internal_Sym *sym ATTRIBUTE_UNUSED; | |
1082 | const char **namep ATTRIBUTE_UNUSED; | |
1083 | flagword *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
1084 | asection **secp; |
1085 | bfd_vma *valp; | |
1086 | { | |
1087 | *valp += (*secp)->vma; | |
1088 | return true; | |
1089 | } | |
1090 | ||
30667bf3 AM |
1091 | /* Create the .plt and .got sections, and set up our hash table |
1092 | short-cuts to various dynamic sections. */ | |
1093 | ||
1094 | static boolean | |
1095 | elf32_hppa_create_dynamic_sections (abfd, info) | |
1096 | bfd *abfd; | |
1097 | struct bfd_link_info *info; | |
252b5132 | 1098 | { |
83c81bfe | 1099 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 1100 | |
30667bf3 | 1101 | /* Don't try to create the .plt and .got twice. */ |
83c81bfe AM |
1102 | htab = hppa_link_hash_table (info); |
1103 | if (htab->splt != NULL) | |
30667bf3 | 1104 | return true; |
edd21aca | 1105 | |
30667bf3 AM |
1106 | /* Call the generic code to do most of the work. */ |
1107 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
1108 | return false; | |
252b5132 | 1109 | |
83c81bfe AM |
1110 | htab->splt = bfd_get_section_by_name (abfd, ".plt"); |
1111 | htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
30667bf3 | 1112 | |
83c81bfe AM |
1113 | htab->sgot = bfd_get_section_by_name (abfd, ".got"); |
1114 | htab->srelgot = bfd_make_section (abfd, ".rela.got"); | |
1115 | if (htab->srelgot == NULL | |
1116 | || ! bfd_set_section_flags (abfd, htab->srelgot, | |
30667bf3 AM |
1117 | (SEC_ALLOC |
1118 | | SEC_LOAD | |
1119 | | SEC_HAS_CONTENTS | |
1120 | | SEC_IN_MEMORY | |
1121 | | SEC_LINKER_CREATED | |
1122 | | SEC_READONLY)) | |
83c81bfe | 1123 | || ! bfd_set_section_alignment (abfd, htab->srelgot, 2)) |
30667bf3 | 1124 | return false; |
edd21aca | 1125 | |
83c81bfe AM |
1126 | htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
1127 | htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
30667bf3 AM |
1128 | |
1129 | return true; | |
1130 | } | |
1131 | ||
ebe50bae AM |
1132 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1133 | ||
51b64d56 | 1134 | static void |
ebe50bae AM |
1135 | elf32_hppa_copy_indirect_symbol (dir, ind) |
1136 | struct elf_link_hash_entry *dir, *ind; | |
1137 | { | |
1138 | struct elf32_hppa_link_hash_entry *edir, *eind; | |
1139 | ||
1140 | edir = (struct elf32_hppa_link_hash_entry *) dir; | |
1141 | eind = (struct elf32_hppa_link_hash_entry *) ind; | |
1142 | ||
bbd7ec4a | 1143 | if (eind->dyn_relocs != NULL) |
ebe50bae | 1144 | { |
bbd7ec4a AM |
1145 | if (edir->dyn_relocs != NULL) |
1146 | { | |
1147 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1148 | struct elf32_hppa_dyn_reloc_entry *p; | |
1149 | ||
1e370bd2 | 1150 | if (ind->root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
1151 | abort (); |
1152 | ||
1153 | /* Add reloc counts against the weak sym to the strong sym | |
1154 | list. Merge any entries against the same section. */ | |
1155 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
1156 | { | |
1157 | struct elf32_hppa_dyn_reloc_entry *q; | |
1158 | ||
1159 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
1160 | if (q->sec == p->sec) | |
1161 | { | |
1162 | #if RELATIVE_DYNRELOCS | |
1163 | q->relative_count += p->relative_count; | |
1164 | #endif | |
1165 | q->count += p->count; | |
1166 | *pp = p->next; | |
1167 | break; | |
1168 | } | |
1169 | if (q == NULL) | |
1170 | pp = &p->next; | |
1171 | } | |
1172 | *pp = edir->dyn_relocs; | |
1173 | } | |
1174 | ||
ebe50bae AM |
1175 | edir->dyn_relocs = eind->dyn_relocs; |
1176 | eind->dyn_relocs = NULL; | |
1177 | } | |
ebe50bae AM |
1178 | |
1179 | _bfd_elf_link_hash_copy_indirect (dir, ind); | |
1180 | } | |
1181 | ||
30667bf3 | 1182 | /* Look through the relocs for a section during the first phase, and |
3ac8354b AM |
1183 | calculate needed space in the global offset table, procedure linkage |
1184 | table, and dynamic reloc sections. At this point we haven't | |
1185 | necessarily read all the input files. */ | |
252b5132 RH |
1186 | |
1187 | static boolean | |
30667bf3 AM |
1188 | elf32_hppa_check_relocs (abfd, info, sec, relocs) |
1189 | bfd *abfd; | |
1190 | struct bfd_link_info *info; | |
1191 | asection *sec; | |
1192 | const Elf_Internal_Rela *relocs; | |
252b5132 | 1193 | { |
30667bf3 AM |
1194 | Elf_Internal_Shdr *symtab_hdr; |
1195 | struct elf_link_hash_entry **sym_hashes; | |
30667bf3 AM |
1196 | const Elf_Internal_Rela *rel; |
1197 | const Elf_Internal_Rela *rel_end; | |
83c81bfe | 1198 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1199 | asection *sreloc; |
1200 | asection *stubreloc; | |
1201 | ||
1202 | if (info->relocateable) | |
1203 | return true; | |
1204 | ||
83c81bfe | 1205 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1206 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1207 | sym_hashes = elf_sym_hashes (abfd); | |
30667bf3 AM |
1208 | sreloc = NULL; |
1209 | stubreloc = NULL; | |
1210 | ||
1211 | rel_end = relocs + sec->reloc_count; | |
1212 | for (rel = relocs; rel < rel_end; rel++) | |
1213 | { | |
1214 | enum { | |
1215 | NEED_GOT = 1, | |
1216 | NEED_PLT = 2, | |
1217 | NEED_DYNREL = 4, | |
98ceb8ce | 1218 | PLT_PLABEL = 8 |
30667bf3 | 1219 | }; |
edd21aca | 1220 | |
30667bf3 AM |
1221 | unsigned int r_symndx, r_type; |
1222 | struct elf32_hppa_link_hash_entry *h; | |
1223 | int need_entry; | |
252b5132 | 1224 | |
30667bf3 | 1225 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 | 1226 | |
30667bf3 AM |
1227 | if (r_symndx < symtab_hdr->sh_info) |
1228 | h = NULL; | |
1229 | else | |
1230 | h = ((struct elf32_hppa_link_hash_entry *) | |
1231 | sym_hashes[r_symndx - symtab_hdr->sh_info]); | |
252b5132 | 1232 | |
30667bf3 | 1233 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 | 1234 | |
30667bf3 AM |
1235 | switch (r_type) |
1236 | { | |
1237 | case R_PARISC_DLTIND14F: | |
1238 | case R_PARISC_DLTIND14R: | |
1239 | case R_PARISC_DLTIND21L: | |
1240 | /* This symbol requires a global offset table entry. */ | |
1241 | need_entry = NEED_GOT; | |
1242 | ||
1243 | /* Mark this section as containing PIC code. */ | |
1244 | sec->flags |= SEC_HAS_GOT_REF; | |
1245 | break; | |
1246 | ||
1247 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1248 | case R_PARISC_PLABEL21L: | |
1249 | case R_PARISC_PLABEL32: | |
74d1c347 | 1250 | /* If the addend is non-zero, we break badly. */ |
49e9d0d3 AM |
1251 | if (rel->r_addend != 0) |
1252 | abort (); | |
74d1c347 AM |
1253 | |
1254 | /* If we are creating a shared library, then we need to | |
1255 | create a PLT entry for all PLABELs, because PLABELs with | |
1256 | local symbols may be passed via a pointer to another | |
1257 | object. Additionally, output a dynamic relocation | |
4dc86686 AM |
1258 | pointing to the PLT entry. |
1259 | For executables, the original 32-bit ABI allowed two | |
1260 | different styles of PLABELs (function pointers): For | |
1261 | global functions, the PLABEL word points into the .plt | |
1262 | two bytes past a (function address, gp) pair, and for | |
1263 | local functions the PLABEL points directly at the | |
1264 | function. The magic +2 for the first type allows us to | |
1265 | differentiate between the two. As you can imagine, this | |
1266 | is a real pain when it comes to generating code to call | |
1267 | functions indirectly or to compare function pointers. | |
1268 | We avoid the mess by always pointing a PLABEL into the | |
1269 | .plt, even for local functions. */ | |
74d1c347 | 1270 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1271 | break; |
1272 | ||
1273 | case R_PARISC_PCREL12F: | |
83c81bfe | 1274 | htab->has_12bit_branch = 1; |
47d89dba | 1275 | /* Fall thru. */ |
30667bf3 AM |
1276 | case R_PARISC_PCREL17C: |
1277 | case R_PARISC_PCREL17F: | |
83c81bfe | 1278 | htab->has_17bit_branch = 1; |
47d89dba | 1279 | /* Fall thru. */ |
30667bf3 | 1280 | case R_PARISC_PCREL22F: |
47d89dba AM |
1281 | /* Function calls might need to go through the .plt, and |
1282 | might require long branch stubs. */ | |
30667bf3 AM |
1283 | if (h == NULL) |
1284 | { | |
1285 | /* We know local syms won't need a .plt entry, and if | |
1286 | they need a long branch stub we can't guarantee that | |
1287 | we can reach the stub. So just flag an error later | |
1288 | if we're doing a shared link and find we need a long | |
1289 | branch stub. */ | |
1290 | continue; | |
1291 | } | |
1292 | else | |
1293 | { | |
1294 | /* Global symbols will need a .plt entry if they remain | |
1295 | global, and in most cases won't need a long branch | |
1296 | stub. Unfortunately, we have to cater for the case | |
1297 | where a symbol is forced local by versioning, or due | |
1298 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1299 | need_entry = NEED_PLT; |
4dc86686 | 1300 | if (h->elf.type == STT_PARISC_MILLI) |
98ceb8ce | 1301 | need_entry = 0; |
30667bf3 AM |
1302 | } |
1303 | break; | |
1304 | ||
1305 | case R_PARISC_SEGBASE: /* Used to set segment base. */ | |
c46b7515 | 1306 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1307 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1308 | case R_PARISC_PCREL14R: | |
1309 | case R_PARISC_PCREL17R: /* External branches. */ | |
1310 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
1311 | /* We don't need to propagate the relocation if linking a | |
1312 | shared object since these are section relative. */ | |
1313 | continue; | |
1314 | ||
1315 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1316 | case R_PARISC_DPREL14R: | |
1317 | case R_PARISC_DPREL21L: | |
1318 | if (info->shared) | |
1319 | { | |
1320 | (*_bfd_error_handler) | |
1321 | (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1322 | bfd_archive_filename (abfd), |
30667bf3 AM |
1323 | elf_hppa_howto_table[r_type].name); |
1324 | bfd_set_error (bfd_error_bad_value); | |
1325 | return false; | |
1326 | } | |
1327 | /* Fall through. */ | |
1328 | ||
1329 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1330 | case R_PARISC_DIR17R: | |
47d89dba AM |
1331 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1332 | case R_PARISC_DIR14R: | |
30667bf3 AM |
1333 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
1334 | #if 1 | |
1335 | /* Help debug shared library creation. Any of the above | |
1336 | relocs can be used in shared libs, but they may cause | |
1337 | pages to become unshared. */ | |
1338 | if (info->shared) | |
1339 | { | |
1340 | (*_bfd_error_handler) | |
1341 | (_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1342 | bfd_archive_filename (abfd), |
30667bf3 AM |
1343 | elf_hppa_howto_table[r_type].name); |
1344 | } | |
1345 | /* Fall through. */ | |
1346 | #endif | |
1347 | ||
c46b7515 | 1348 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1349 | /* We may want to output a dynamic relocation later. */ |
1350 | need_entry = NEED_DYNREL; | |
1351 | break; | |
1352 | ||
1353 | /* This relocation describes the C++ object vtable hierarchy. | |
1354 | Reconstruct it for later use during GC. */ | |
1355 | case R_PARISC_GNU_VTINHERIT: | |
1356 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, | |
1357 | &h->elf, rel->r_offset)) | |
1358 | return false; | |
1359 | continue; | |
1360 | ||
1361 | /* This relocation describes which C++ vtable entries are actually | |
1362 | used. Record for later use during GC. */ | |
1363 | case R_PARISC_GNU_VTENTRY: | |
1364 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, | |
36605136 | 1365 | &h->elf, rel->r_addend)) |
30667bf3 AM |
1366 | return false; |
1367 | continue; | |
1368 | ||
1369 | default: | |
1370 | continue; | |
1371 | } | |
1372 | ||
1373 | /* Now carry out our orders. */ | |
1374 | if (need_entry & NEED_GOT) | |
1375 | { | |
1376 | /* Allocate space for a GOT entry, as well as a dynamic | |
25f72752 | 1377 | relocation for this entry. */ |
83c81bfe | 1378 | if (htab->sgot == NULL) |
30667bf3 | 1379 | { |
3ac8354b AM |
1380 | if (htab->elf.dynobj == NULL) |
1381 | htab->elf.dynobj = abfd; | |
1382 | if (!elf32_hppa_create_dynamic_sections (htab->elf.dynobj, info)) | |
30667bf3 AM |
1383 | return false; |
1384 | } | |
1385 | ||
1386 | if (h != NULL) | |
1387 | { | |
51b64d56 | 1388 | h->elf.got.refcount += 1; |
30667bf3 AM |
1389 | } |
1390 | else | |
1391 | { | |
3ac8354b AM |
1392 | bfd_signed_vma *local_got_refcounts; |
1393 | ||
30667bf3 | 1394 | /* This is a global offset table entry for a local symbol. */ |
3ac8354b | 1395 | local_got_refcounts = elf_local_got_refcounts (abfd); |
30667bf3 AM |
1396 | if (local_got_refcounts == NULL) |
1397 | { | |
dc810e39 | 1398 | bfd_size_type size; |
30667bf3 | 1399 | |
74d1c347 AM |
1400 | /* Allocate space for local got offsets and local |
1401 | plt offsets. Done this way to save polluting | |
1402 | elf_obj_tdata with another target specific | |
1403 | pointer. */ | |
dc810e39 AM |
1404 | size = symtab_hdr->sh_info; |
1405 | size *= 2 * sizeof (bfd_signed_vma); | |
30667bf3 | 1406 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1407 | bfd_zalloc (abfd, size)); |
30667bf3 AM |
1408 | if (local_got_refcounts == NULL) |
1409 | return false; | |
1410 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
30667bf3 | 1411 | } |
ebe50bae | 1412 | local_got_refcounts[r_symndx] += 1; |
30667bf3 AM |
1413 | } |
1414 | } | |
1415 | ||
1416 | if (need_entry & NEED_PLT) | |
1417 | { | |
1418 | /* If we are creating a shared library, and this is a reloc | |
1419 | against a weak symbol or a global symbol in a dynamic | |
1420 | object, then we will be creating an import stub and a | |
1421 | .plt entry for the symbol. Similarly, on a normal link | |
1422 | to symbols defined in a dynamic object we'll need the | |
1423 | import stub and a .plt entry. We don't know yet whether | |
1424 | the symbol is defined or not, so make an entry anyway and | |
1425 | clean up later in adjust_dynamic_symbol. */ | |
1426 | if ((sec->flags & SEC_ALLOC) != 0) | |
1427 | { | |
74d1c347 | 1428 | if (h != NULL) |
30667bf3 | 1429 | { |
51b64d56 AM |
1430 | h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
1431 | h->elf.plt.refcount += 1; | |
74d1c347 | 1432 | |
36605136 AM |
1433 | /* If this .plt entry is for a plabel, mark it so |
1434 | that adjust_dynamic_symbol will keep the entry | |
1435 | even if it appears to be local. */ | |
74d1c347 AM |
1436 | if (need_entry & PLT_PLABEL) |
1437 | h->plabel = 1; | |
1438 | } | |
1439 | else if (need_entry & PLT_PLABEL) | |
1440 | { | |
3ac8354b | 1441 | bfd_signed_vma *local_got_refcounts; |
68fb2e56 | 1442 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 | 1443 | |
3ac8354b | 1444 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1445 | if (local_got_refcounts == NULL) |
1446 | { | |
dc810e39 | 1447 | bfd_size_type size; |
74d1c347 AM |
1448 | |
1449 | /* Allocate space for local got offsets and local | |
1450 | plt offsets. */ | |
dc810e39 AM |
1451 | size = symtab_hdr->sh_info; |
1452 | size *= 2 * sizeof (bfd_signed_vma); | |
74d1c347 | 1453 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1454 | bfd_zalloc (abfd, size)); |
74d1c347 AM |
1455 | if (local_got_refcounts == NULL) |
1456 | return false; | |
1457 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
74d1c347 | 1458 | } |
68fb2e56 AM |
1459 | local_plt_refcounts = (local_got_refcounts |
1460 | + symtab_hdr->sh_info); | |
ebe50bae | 1461 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1462 | } |
30667bf3 AM |
1463 | } |
1464 | } | |
1465 | ||
98ceb8ce | 1466 | if (need_entry & NEED_DYNREL) |
30667bf3 AM |
1467 | { |
1468 | /* Flag this symbol as having a non-got, non-plt reference | |
1469 | so that we generate copy relocs if it turns out to be | |
1470 | dynamic. */ | |
ebe50bae | 1471 | if (h != NULL && !info->shared) |
30667bf3 AM |
1472 | h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; |
1473 | ||
1474 | /* If we are creating a shared library then we need to copy | |
1475 | the reloc into the shared library. However, if we are | |
1476 | linking with -Bsymbolic, we need only copy absolute | |
1477 | relocs or relocs against symbols that are not defined in | |
1478 | an object we are including in the link. PC- or DP- or | |
1479 | DLT-relative relocs against any local sym or global sym | |
1480 | with DEF_REGULAR set, can be discarded. At this point we | |
1481 | have not seen all the input files, so it is possible that | |
1482 | DEF_REGULAR is not set now but will be set later (it is | |
1483 | never cleared). We account for that possibility below by | |
98ceb8ce | 1484 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1485 | hash table entry. |
1486 | ||
1487 | A similar situation to the -Bsymbolic case occurs when | |
1488 | creating shared libraries and symbol visibility changes | |
1489 | render the symbol local. | |
1490 | ||
1491 | As it turns out, all the relocs we will be creating here | |
1492 | are absolute, so we cannot remove them on -Bsymbolic | |
1493 | links or visibility changes anyway. A STUB_REL reloc | |
1494 | is absolute too, as in that case it is the reloc in the | |
1495 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1496 | reloc in the branch. |
1497 | ||
1498 | If on the other hand, we are creating an executable, we | |
1499 | may need to keep relocations for symbols satisfied by a | |
1500 | dynamic library if we manage to avoid copy relocs for the | |
1501 | symbol. */ | |
446f2863 AM |
1502 | if ((info->shared |
1503 | && (sec->flags & SEC_ALLOC) != 0 | |
1504 | && (IS_ABSOLUTE_RELOC (r_type) | |
1505 | || (h != NULL | |
1506 | && (!info->symbolic | |
1507 | || h->elf.root.type == bfd_link_hash_defweak | |
1508 | || (h->elf.elf_link_hash_flags | |
1509 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1510 | || (!info->shared | |
1511 | && (sec->flags & SEC_ALLOC) != 0 | |
1512 | && h != NULL | |
446f2863 AM |
1513 | && (h->elf.root.type == bfd_link_hash_defweak |
1514 | || (h->elf.elf_link_hash_flags | |
1515 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
30667bf3 | 1516 | { |
30667bf3 AM |
1517 | /* Create a reloc section in dynobj and make room for |
1518 | this reloc. */ | |
98ceb8ce | 1519 | if (sreloc == NULL) |
30667bf3 AM |
1520 | { |
1521 | char *name; | |
3ac8354b | 1522 | bfd *dynobj; |
30667bf3 | 1523 | |
98ceb8ce AM |
1524 | name = (bfd_elf_string_from_elf_section |
1525 | (abfd, | |
1526 | elf_elfheader (abfd)->e_shstrndx, | |
1527 | elf_section_data (sec)->rel_hdr.sh_name)); | |
30667bf3 AM |
1528 | if (name == NULL) |
1529 | { | |
1530 | (*_bfd_error_handler) | |
1531 | (_("Could not find relocation section for %s"), | |
1532 | sec->name); | |
1533 | bfd_set_error (bfd_error_bad_value); | |
1534 | return false; | |
1535 | } | |
1536 | ||
3ac8354b AM |
1537 | if (htab->elf.dynobj == NULL) |
1538 | htab->elf.dynobj = abfd; | |
1539 | ||
1540 | dynobj = htab->elf.dynobj; | |
98ceb8ce AM |
1541 | sreloc = bfd_get_section_by_name (dynobj, name); |
1542 | if (sreloc == NULL) | |
30667bf3 AM |
1543 | { |
1544 | flagword flags; | |
1545 | ||
98ceb8ce | 1546 | sreloc = bfd_make_section (dynobj, name); |
30667bf3 AM |
1547 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1548 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1549 | if ((sec->flags & SEC_ALLOC) != 0) | |
1550 | flags |= SEC_ALLOC | SEC_LOAD; | |
98ceb8ce AM |
1551 | if (sreloc == NULL |
1552 | || !bfd_set_section_flags (dynobj, sreloc, flags) | |
1553 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) | |
30667bf3 AM |
1554 | return false; |
1555 | } | |
30667bf3 | 1556 | |
98ceb8ce | 1557 | elf_section_data (sec)->sreloc = sreloc; |
30667bf3 AM |
1558 | } |
1559 | ||
98ceb8ce AM |
1560 | /* If this is a global symbol, we count the number of |
1561 | relocations we need for this symbol. */ | |
1562 | if (h != NULL) | |
30667bf3 | 1563 | { |
98ceb8ce | 1564 | struct elf32_hppa_dyn_reloc_entry *p; |
30667bf3 | 1565 | |
98ceb8ce AM |
1566 | p = h->dyn_relocs; |
1567 | if (p == NULL || p->sec != sec) | |
30667bf3 | 1568 | { |
98ceb8ce | 1569 | p = ((struct elf32_hppa_dyn_reloc_entry *) |
3ac8354b AM |
1570 | bfd_alloc (htab->elf.dynobj, |
1571 | (bfd_size_type) sizeof *p)); | |
30667bf3 | 1572 | if (p == NULL) |
98ceb8ce AM |
1573 | return false; |
1574 | p->next = h->dyn_relocs; | |
1575 | h->dyn_relocs = p; | |
1576 | p->sec = sec; | |
1577 | p->count = 0; | |
1578 | #if RELATIVE_DYNRELOCS | |
1579 | p->relative_count = 0; | |
1580 | #endif | |
30667bf3 | 1581 | } |
98ceb8ce AM |
1582 | |
1583 | p->count += 1; | |
1584 | #if RELATIVE_DYNRELOCS | |
1585 | if (!IS_ABSOLUTE_RELOC (rtype)) | |
1586 | p->relative_count += 1; | |
1587 | #endif | |
1588 | } | |
1589 | else | |
1590 | { | |
1591 | /* Track dynamic relocs needed for local syms too. */ | |
1592 | elf_section_data (sec)->local_dynrel += 1; | |
30667bf3 AM |
1593 | } |
1594 | } | |
1595 | } | |
1596 | } | |
edd21aca AM |
1597 | |
1598 | return true; | |
1599 | } | |
1600 | ||
30667bf3 AM |
1601 | /* Return the section that should be marked against garbage collection |
1602 | for a given relocation. */ | |
1603 | ||
1604 | static asection * | |
1605 | elf32_hppa_gc_mark_hook (abfd, info, rel, h, sym) | |
1606 | bfd *abfd; | |
1607 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1608 | Elf_Internal_Rela *rel; | |
1609 | struct elf_link_hash_entry *h; | |
1610 | Elf_Internal_Sym *sym; | |
1611 | { | |
1612 | if (h != NULL) | |
1613 | { | |
1614 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1615 | { | |
1616 | case R_PARISC_GNU_VTINHERIT: | |
1617 | case R_PARISC_GNU_VTENTRY: | |
1618 | break; | |
1619 | ||
1620 | default: | |
1621 | switch (h->root.type) | |
1622 | { | |
1623 | case bfd_link_hash_defined: | |
1624 | case bfd_link_hash_defweak: | |
1625 | return h->root.u.def.section; | |
1626 | ||
1627 | case bfd_link_hash_common: | |
1628 | return h->root.u.c.p->section; | |
1629 | ||
1630 | default: | |
1631 | break; | |
1632 | } | |
1633 | } | |
1634 | } | |
1635 | else | |
1636 | { | |
1637 | if (!(elf_bad_symtab (abfd) | |
1638 | && ELF_ST_BIND (sym->st_info) != STB_LOCAL) | |
1639 | && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) | |
1640 | && sym->st_shndx != SHN_COMMON)) | |
1641 | { | |
1642 | return bfd_section_from_elf_index (abfd, sym->st_shndx); | |
1643 | } | |
1644 | } | |
1645 | ||
1646 | return NULL; | |
1647 | } | |
1648 | ||
30667bf3 AM |
1649 | /* Update the got and plt entry reference counts for the section being |
1650 | removed. */ | |
edd21aca AM |
1651 | |
1652 | static boolean | |
30667bf3 AM |
1653 | elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs) |
1654 | bfd *abfd; | |
1655 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1656 | asection *sec; | |
1657 | const Elf_Internal_Rela *relocs; | |
edd21aca | 1658 | { |
30667bf3 AM |
1659 | Elf_Internal_Shdr *symtab_hdr; |
1660 | struct elf_link_hash_entry **sym_hashes; | |
1661 | bfd_signed_vma *local_got_refcounts; | |
74d1c347 | 1662 | bfd_signed_vma *local_plt_refcounts; |
30667bf3 AM |
1663 | const Elf_Internal_Rela *rel, *relend; |
1664 | unsigned long r_symndx; | |
1665 | struct elf_link_hash_entry *h; | |
83c81bfe | 1666 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 1667 | bfd *dynobj; |
30667bf3 | 1668 | |
98ceb8ce AM |
1669 | elf_section_data (sec)->local_dynrel = 0; |
1670 | ||
30667bf3 AM |
1671 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1672 | sym_hashes = elf_sym_hashes (abfd); | |
1673 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
74d1c347 AM |
1674 | local_plt_refcounts = local_got_refcounts; |
1675 | if (local_plt_refcounts != NULL) | |
1676 | local_plt_refcounts += symtab_hdr->sh_info; | |
83c81bfe | 1677 | htab = hppa_link_hash_table (info); |
ebe50bae | 1678 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
1679 | if (dynobj == NULL) |
1680 | return true; | |
1681 | ||
30667bf3 AM |
1682 | relend = relocs + sec->reloc_count; |
1683 | for (rel = relocs; rel < relend; rel++) | |
1684 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1685 | { | |
1686 | case R_PARISC_DLTIND14F: | |
1687 | case R_PARISC_DLTIND14R: | |
1688 | case R_PARISC_DLTIND21L: | |
1689 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1690 | if (r_symndx >= symtab_hdr->sh_info) | |
1691 | { | |
1692 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1693 | if (h->got.refcount > 0) | |
4dc86686 | 1694 | h->got.refcount -= 1; |
30667bf3 AM |
1695 | } |
1696 | else if (local_got_refcounts != NULL) | |
1697 | { | |
1698 | if (local_got_refcounts[r_symndx] > 0) | |
4dc86686 | 1699 | local_got_refcounts[r_symndx] -= 1; |
30667bf3 AM |
1700 | } |
1701 | break; | |
edd21aca | 1702 | |
30667bf3 AM |
1703 | case R_PARISC_PCREL12F: |
1704 | case R_PARISC_PCREL17C: | |
1705 | case R_PARISC_PCREL17F: | |
1706 | case R_PARISC_PCREL22F: | |
1707 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1708 | if (r_symndx >= symtab_hdr->sh_info) | |
1709 | { | |
1710 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1711 | if (h->plt.refcount > 0) | |
1712 | h->plt.refcount -= 1; | |
1713 | } | |
1714 | break; | |
edd21aca | 1715 | |
74d1c347 AM |
1716 | case R_PARISC_PLABEL14R: |
1717 | case R_PARISC_PLABEL21L: | |
1718 | case R_PARISC_PLABEL32: | |
1719 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1720 | if (r_symndx >= symtab_hdr->sh_info) | |
1721 | { | |
98ceb8ce AM |
1722 | struct elf32_hppa_link_hash_entry *eh; |
1723 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1724 | struct elf32_hppa_dyn_reloc_entry *p; | |
1725 | ||
74d1c347 | 1726 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
98ceb8ce | 1727 | |
74d1c347 AM |
1728 | if (h->plt.refcount > 0) |
1729 | h->plt.refcount -= 1; | |
98ceb8ce AM |
1730 | |
1731 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1732 | ||
1733 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1734 | if (p->sec == sec) | |
1735 | { | |
1736 | #if RELATIVE_DYNRELOCS | |
1737 | if (!IS_ABSOLUTE_RELOC (rtype)) | |
1738 | p->relative_count -= 1; | |
1739 | #endif | |
1740 | p->count -= 1; | |
1741 | if (p->count == 0) | |
1742 | *pp = p->next; | |
1743 | break; | |
1744 | } | |
74d1c347 AM |
1745 | } |
1746 | else if (local_plt_refcounts != NULL) | |
1747 | { | |
1748 | if (local_plt_refcounts[r_symndx] > 0) | |
1749 | local_plt_refcounts[r_symndx] -= 1; | |
1750 | } | |
1751 | break; | |
1752 | ||
98ceb8ce AM |
1753 | case R_PARISC_DIR32: |
1754 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1755 | if (r_symndx >= symtab_hdr->sh_info) | |
1756 | { | |
1757 | struct elf32_hppa_link_hash_entry *eh; | |
1758 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1759 | struct elf32_hppa_dyn_reloc_entry *p; | |
1760 | ||
1761 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1762 | ||
1763 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1764 | ||
1765 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1766 | if (p->sec == sec) | |
1767 | { | |
1768 | #if RELATIVE_DYNRELOCS | |
1769 | if (!IS_ABSOLUTE_RELOC (R_PARISC_DIR32)) | |
1770 | p->relative_count -= 1; | |
1771 | #endif | |
1772 | p->count -= 1; | |
1773 | if (p->count == 0) | |
1774 | *pp = p->next; | |
1775 | break; | |
1776 | } | |
1777 | } | |
1778 | break; | |
1779 | ||
30667bf3 AM |
1780 | default: |
1781 | break; | |
1782 | } | |
252b5132 | 1783 | |
252b5132 RH |
1784 | return true; |
1785 | } | |
1786 | ||
74d1c347 AM |
1787 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1788 | plabels. */ | |
1789 | ||
1790 | static void | |
1791 | elf32_hppa_hide_symbol (info, h) | |
1792 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1793 | struct elf_link_hash_entry *h; | |
1794 | { | |
5fba655a L |
1795 | if ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0) |
1796 | h->dynindx = -1; | |
74d1c347 AM |
1797 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel) |
1798 | { | |
1799 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1800 | h->plt.offset = (bfd_vma) -1; | |
1801 | } | |
1802 | } | |
1803 | ||
4dc86686 AM |
1804 | /* This is the condition under which elf32_hppa_finish_dynamic_symbol |
1805 | will be called from elflink.h. If elflink.h doesn't call our | |
1806 | finish_dynamic_symbol routine, we'll need to do something about | |
1807 | initializing any .plt and .got entries in elf32_hppa_relocate_section. */ | |
1808 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
1809 | ((DYN) \ | |
1810 | && ((INFO)->shared \ | |
1811 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
1812 | && ((H)->dynindx != -1 \ | |
1813 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
1814 | ||
30667bf3 AM |
1815 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1816 | regular object. The current definition is in some section of the | |
1817 | dynamic object, but we're not including those sections. We have to | |
1818 | change the definition to something the rest of the link can | |
1819 | understand. */ | |
252b5132 | 1820 | |
30667bf3 AM |
1821 | static boolean |
1822 | elf32_hppa_adjust_dynamic_symbol (info, h) | |
1823 | struct bfd_link_info *info; | |
1824 | struct elf_link_hash_entry *h; | |
252b5132 | 1825 | { |
83c81bfe | 1826 | struct elf32_hppa_link_hash_table *htab; |
ebe50bae AM |
1827 | struct elf32_hppa_link_hash_entry *eh; |
1828 | struct elf32_hppa_dyn_reloc_entry *p; | |
30667bf3 | 1829 | asection *s; |
3ac8354b | 1830 | unsigned int power_of_two; |
30667bf3 AM |
1831 | |
1832 | /* If this is a function, put it in the procedure linkage table. We | |
1833 | will fill in the contents of the procedure linkage table later, | |
1834 | when we know the address of the .got section. */ | |
1835 | if (h->type == STT_FUNC | |
1836 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1837 | { | |
12cca0d2 AM |
1838 | if (!info->shared |
1839 | && h->plt.refcount > 0 | |
1840 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1841 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0) | |
1842 | { | |
1843 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; | |
1844 | } | |
1845 | ||
30667bf3 AM |
1846 | if (h->plt.refcount <= 0 |
1847 | || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1848 | && h->root.type != bfd_link_hash_defweak | |
74d1c347 | 1849 | && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel |
30667bf3 AM |
1850 | && (!info->shared || info->symbolic))) |
1851 | { | |
1852 | /* The .plt entry is not needed when: | |
1853 | a) Garbage collection has removed all references to the | |
1854 | symbol, or | |
1855 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1856 | object, and it's not a weak definition, nor is the symbol |
1857 | used by a plabel relocation. Either this object is the | |
1858 | application or we are doing a shared symbolic link. */ | |
1859 | ||
1860 | /* As a special sop to the hppa ABI, we keep a .plt entry | |
1861 | for functions in sections containing PIC code. */ | |
12cca0d2 AM |
1862 | if (((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call) |
1863 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; | |
30667bf3 AM |
1864 | else |
1865 | { | |
1866 | h->plt.offset = (bfd_vma) -1; | |
1867 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
30667bf3 | 1868 | } |
30667bf3 | 1869 | } |
4dc86686 | 1870 | |
30667bf3 AM |
1871 | return true; |
1872 | } | |
bbd7ec4a AM |
1873 | else |
1874 | h->plt.offset = (bfd_vma) -1; | |
edd21aca | 1875 | |
30667bf3 AM |
1876 | /* If this is a weak symbol, and there is a real definition, the |
1877 | processor independent code will have arranged for us to see the | |
1878 | real definition first, and we can just use the same value. */ | |
1879 | if (h->weakdef != NULL) | |
edd21aca | 1880 | { |
49e9d0d3 AM |
1881 | if (h->weakdef->root.type != bfd_link_hash_defined |
1882 | && h->weakdef->root.type != bfd_link_hash_defweak) | |
1883 | abort (); | |
30667bf3 AM |
1884 | h->root.u.def.section = h->weakdef->root.u.def.section; |
1885 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
0a991dfe | 1886 | return true; |
30667bf3 | 1887 | } |
edd21aca | 1888 | |
30667bf3 AM |
1889 | /* This is a reference to a symbol defined by a dynamic object which |
1890 | is not a function. */ | |
1891 | ||
1892 | /* If we are creating a shared library, we must presume that the | |
1893 | only references to the symbol are via the global offset table. | |
1894 | For such cases we need not do anything here; the relocations will | |
1895 | be handled correctly by relocate_section. */ | |
1896 | if (info->shared) | |
1897 | return true; | |
1898 | ||
1899 | /* If there are no references to this symbol that do not use the | |
1900 | GOT, we don't need to generate a copy reloc. */ | |
1901 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
1902 | return true; | |
1903 | ||
ebe50bae AM |
1904 | eh = (struct elf32_hppa_link_hash_entry *) h; |
1905 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1906 | { | |
1907 | s = p->sec->output_section; | |
1908 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1909 | break; | |
1910 | } | |
1911 | ||
1912 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1913 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1914 | if (p == NULL) | |
1915 | { | |
1916 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
1917 | return true; | |
1918 | } | |
1919 | ||
30667bf3 AM |
1920 | /* We must allocate the symbol in our .dynbss section, which will |
1921 | become part of the .bss section of the executable. There will be | |
1922 | an entry for this symbol in the .dynsym section. The dynamic | |
1923 | object will contain position independent code, so all references | |
1924 | from the dynamic object to this symbol will go through the global | |
1925 | offset table. The dynamic linker will use the .dynsym entry to | |
1926 | determine the address it must put in the global offset table, so | |
1927 | both the dynamic object and the regular object will refer to the | |
1928 | same memory location for the variable. */ | |
1929 | ||
3ac8354b | 1930 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1931 | |
1932 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1933 | copy the initial value out of the dynamic object and into the | |
3ac8354b | 1934 | runtime process image. */ |
30667bf3 AM |
1935 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
1936 | { | |
3ac8354b | 1937 | htab->srelbss->_raw_size += sizeof (Elf32_External_Rela); |
30667bf3 | 1938 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
edd21aca | 1939 | } |
252b5132 | 1940 | |
3ac8354b AM |
1941 | /* We need to figure out the alignment required for this symbol. I |
1942 | have no idea how other ELF linkers handle this. */ | |
30667bf3 | 1943 | |
3ac8354b AM |
1944 | power_of_two = bfd_log2 (h->size); |
1945 | if (power_of_two > 3) | |
1946 | power_of_two = 3; | |
1947 | ||
1948 | /* Apply the required alignment. */ | |
1949 | s = htab->sdynbss; | |
1950 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1951 | (bfd_size_type) (1 << power_of_two)); | |
1952 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
1953 | { | |
1954 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) | |
1955 | return false; | |
1956 | } | |
30667bf3 | 1957 | |
30667bf3 AM |
1958 | /* Define the symbol as being at this point in the section. */ |
1959 | h->root.u.def.section = s; | |
1960 | h->root.u.def.value = s->_raw_size; | |
edd21aca | 1961 | |
30667bf3 AM |
1962 | /* Increment the section size to make room for the symbol. */ |
1963 | s->_raw_size += h->size; | |
252b5132 RH |
1964 | |
1965 | return true; | |
1966 | } | |
1967 | ||
30667bf3 AM |
1968 | /* Called via elf_link_hash_traverse to create .plt entries for an |
1969 | application that uses statically linked PIC functions. Similar to | |
1970 | the first part of elf32_hppa_adjust_dynamic_symbol. */ | |
252b5132 | 1971 | |
30667bf3 | 1972 | static boolean |
a8d02d66 | 1973 | mark_PIC_calls (h, inf) |
30667bf3 | 1974 | struct elf_link_hash_entry *h; |
4dc86686 | 1975 | PTR inf ATTRIBUTE_UNUSED; |
252b5132 | 1976 | { |
30667bf3 AM |
1977 | if (! (h->plt.refcount > 0 |
1978 | && (h->root.type == bfd_link_hash_defined | |
1979 | || h->root.type == bfd_link_hash_defweak) | |
1980 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)) | |
252b5132 | 1981 | { |
30667bf3 AM |
1982 | h->plt.offset = (bfd_vma) -1; |
1983 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1984 | return true; | |
252b5132 RH |
1985 | } |
1986 | ||
74d1c347 | 1987 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
12cca0d2 | 1988 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; |
30667bf3 | 1989 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
edd21aca | 1990 | |
4dc86686 AM |
1991 | return true; |
1992 | } | |
1993 | ||
a8d02d66 AM |
1994 | /* Allocate space in the .plt for pic_call entries. */ |
1995 | ||
1996 | static boolean | |
1997 | allocate_PIC_calls (h, inf) | |
1998 | struct elf_link_hash_entry *h; | |
1999 | PTR inf; | |
2000 | { | |
2001 | struct bfd_link_info *info; | |
2002 | struct elf32_hppa_link_hash_table *htab; | |
2003 | asection *s; | |
2004 | ||
2005 | if (h->root.type == bfd_link_hash_indirect | |
2006 | || h->root.type == bfd_link_hash_warning) | |
2007 | return true; | |
2008 | ||
2009 | info = (struct bfd_link_info *) inf; | |
2010 | htab = hppa_link_hash_table (info); | |
2011 | if (((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2012 | { | |
2013 | /* Make an entry in the .plt section. */ | |
2014 | s = htab->splt; | |
2015 | h->plt.offset = s->_raw_size; | |
2016 | if (PLABEL_PLT_ENTRY_SIZE != PLT_ENTRY_SIZE | |
2017 | && ((struct elf32_hppa_link_hash_entry *) h)->plabel | |
2018 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
2019 | { | |
2020 | /* Add some extra space for the dynamic linker to use. */ | |
2021 | s->_raw_size += PLABEL_PLT_ENTRY_SIZE; | |
2022 | } | |
2023 | else | |
2024 | s->_raw_size += PLT_ENTRY_SIZE; | |
2025 | } | |
2026 | ||
2027 | return true; | |
2028 | } | |
2029 | ||
4dc86686 AM |
2030 | /* Allocate space in .plt, .got and associated reloc sections for |
2031 | global syms. */ | |
2032 | ||
2033 | static boolean | |
98ceb8ce | 2034 | allocate_dynrelocs (h, inf) |
4dc86686 AM |
2035 | struct elf_link_hash_entry *h; |
2036 | PTR inf; | |
2037 | { | |
2038 | struct bfd_link_info *info; | |
83c81bfe | 2039 | struct elf32_hppa_link_hash_table *htab; |
4dc86686 | 2040 | asection *s; |
446f2863 | 2041 | struct elf32_hppa_link_hash_entry *eh; |
98ceb8ce | 2042 | struct elf32_hppa_dyn_reloc_entry *p; |
4dc86686 | 2043 | |
73a74a62 AM |
2044 | if (h->root.type == bfd_link_hash_indirect |
2045 | || h->root.type == bfd_link_hash_warning) | |
2046 | return true; | |
2047 | ||
30667bf3 | 2048 | info = (struct bfd_link_info *) inf; |
83c81bfe | 2049 | htab = hppa_link_hash_table (info); |
ebe50bae | 2050 | if ((htab->elf.dynamic_sections_created |
4dc86686 AM |
2051 | && h->plt.refcount > 0) |
2052 | || ((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2053 | { | |
446f2863 AM |
2054 | /* Make sure this symbol is output as a dynamic symbol. |
2055 | Undefined weak syms won't yet be marked as dynamic. */ | |
2056 | if (h->dynindx == -1 | |
2057 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2058 | && h->type != STT_PARISC_MILLI | |
2059 | && !((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2060 | { | |
2061 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2062 | return false; | |
2063 | } | |
2064 | ||
a8d02d66 AM |
2065 | if (((struct elf32_hppa_link_hash_entry *) h)->pic_call) |
2066 | { | |
2067 | /* Already handled by allocate_PIC_calls. */ | |
2068 | } | |
2069 | else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
4dc86686 | 2070 | { |
3ac8354b AM |
2071 | /* Make an entry in the .plt section. */ |
2072 | s = htab->splt; | |
2073 | h->plt.offset = s->_raw_size; | |
2074 | if (PLABEL_PLT_ENTRY_SIZE != PLT_ENTRY_SIZE | |
2075 | && ((struct elf32_hppa_link_hash_entry *) h)->plabel | |
2076 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
2077 | { | |
2078 | /* Add some extra space for the dynamic linker to use. */ | |
2079 | s->_raw_size += PLABEL_PLT_ENTRY_SIZE; | |
2080 | } | |
2081 | else | |
2082 | s->_raw_size += PLT_ENTRY_SIZE; | |
2083 | ||
a8d02d66 AM |
2084 | /* We also need to make an entry in the .rela.plt section. */ |
2085 | htab->srelplt->_raw_size += sizeof (Elf32_External_Rela); | |
2086 | htab->need_plt_stub = 1; | |
4dc86686 AM |
2087 | } |
2088 | else | |
4dc86686 | 2089 | { |
3ac8354b AM |
2090 | h->plt.offset = (bfd_vma) -1; |
2091 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
4dc86686 AM |
2092 | } |
2093 | } | |
2094 | else | |
2095 | { | |
2096 | h->plt.offset = (bfd_vma) -1; | |
2097 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2098 | } | |
edd21aca | 2099 | |
4dc86686 AM |
2100 | if (h->got.refcount > 0) |
2101 | { | |
446f2863 AM |
2102 | /* Make sure this symbol is output as a dynamic symbol. |
2103 | Undefined weak syms won't yet be marked as dynamic. */ | |
2104 | if (h->dynindx == -1 | |
2105 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2106 | && h->type != STT_PARISC_MILLI) | |
2107 | { | |
2108 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2109 | return false; | |
2110 | } | |
2111 | ||
83c81bfe | 2112 | s = htab->sgot; |
4dc86686 AM |
2113 | h->got.offset = s->_raw_size; |
2114 | s->_raw_size += GOT_ENTRY_SIZE; | |
ce757d15 AM |
2115 | if (htab->elf.dynamic_sections_created |
2116 | && (info->shared | |
2117 | || (h->dynindx != -1 | |
2118 | && h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)) | |
2119 | { | |
2120 | htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
2121 | } | |
4dc86686 AM |
2122 | } |
2123 | else | |
2124 | h->got.offset = (bfd_vma) -1; | |
30667bf3 | 2125 | |
446f2863 | 2126 | eh = (struct elf32_hppa_link_hash_entry *) h; |
98ceb8ce | 2127 | if (eh->dyn_relocs == NULL) |
446f2863 | 2128 | return true; |
30667bf3 | 2129 | |
98ceb8ce AM |
2130 | /* If this is a -Bsymbolic shared link, then we need to discard all |
2131 | space allocated for dynamic pc-relative relocs against symbols | |
2132 | defined in a regular object. For the normal shared case, discard | |
2133 | space for relocs that have become local due to symbol visibility | |
2134 | changes. */ | |
2135 | if (info->shared) | |
446f2863 | 2136 | { |
98ceb8ce AM |
2137 | #if RELATIVE_DYNRELOCS |
2138 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
2139 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
2140 | || info->symbolic)) | |
446f2863 | 2141 | { |
98ceb8ce | 2142 | struct elf32_hppa_dyn_reloc_entry **pp; |
30667bf3 | 2143 | |
98ceb8ce AM |
2144 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
2145 | { | |
2146 | p->count -= p->relative_count; | |
2147 | p->relative_count = 0; | |
2148 | if (p->count == 0) | |
2149 | *pp = p->next; | |
2150 | else | |
2151 | pp = &p->next; | |
2152 | } | |
2153 | } | |
2154 | #endif | |
446f2863 | 2155 | } |
98ceb8ce | 2156 | else |
30667bf3 | 2157 | { |
98ceb8ce AM |
2158 | /* For the non-shared case, discard space for relocs against |
2159 | symbols which turn out to need copy relocs or are not | |
2160 | dynamic. */ | |
2161 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
2162 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2163 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
ebe50bae | 2164 | || (htab->elf.dynamic_sections_created |
98ceb8ce AM |
2165 | && (h->root.type == bfd_link_hash_undefweak |
2166 | || h->root.type == bfd_link_hash_undefined)))) | |
2167 | { | |
2168 | /* Make sure this symbol is output as a dynamic symbol. | |
2169 | Undefined weak syms won't yet be marked as dynamic. */ | |
2170 | if (h->dynindx == -1 | |
2171 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2172 | && h->type != STT_PARISC_MILLI) | |
2173 | { | |
2174 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2175 | return false; | |
2176 | } | |
2177 | ||
2178 | /* If that succeeded, we know we'll be keeping all the | |
2179 | relocs. */ | |
2180 | if (h->dynindx != -1) | |
2181 | goto keep; | |
2182 | } | |
446f2863 | 2183 | |
98ceb8ce AM |
2184 | eh->dyn_relocs = NULL; |
2185 | return true; | |
2186 | ||
2187 | keep: | |
30667bf3 | 2188 | } |
30667bf3 | 2189 | |
98ceb8ce AM |
2190 | /* Finally, allocate space. */ |
2191 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
30667bf3 | 2192 | { |
98ceb8ce AM |
2193 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
2194 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2195 | } |
30667bf3 AM |
2196 | |
2197 | return true; | |
2198 | } | |
30667bf3 | 2199 | |
d5c73c2f AM |
2200 | /* This function is called via elf_link_hash_traverse to force |
2201 | millicode symbols local so they do not end up as globals in the | |
2202 | dynamic symbol table. We ought to be able to do this in | |
2203 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2204 | for all dynamic symbols. Arguably, this is a bug in | |
2205 | elf_adjust_dynamic_symbol. */ | |
2206 | ||
2207 | static boolean | |
2208 | clobber_millicode_symbols (h, info) | |
2209 | struct elf_link_hash_entry *h; | |
2210 | struct bfd_link_info *info; | |
2211 | { | |
8dea1268 AM |
2212 | /* We only want to remove these from the dynamic symbol table. |
2213 | Therefore we do not leave ELF_LINK_FORCED_LOCAL set. */ | |
d5c73c2f | 2214 | if (h->type == STT_PARISC_MILLI) |
e0522e89 AM |
2215 | { |
2216 | unsigned short oldflags = h->elf_link_hash_flags; | |
2217 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL; | |
2218 | elf32_hppa_hide_symbol (info, h); | |
2219 | h->elf_link_hash_flags &= ~ELF_LINK_FORCED_LOCAL; | |
2220 | h->elf_link_hash_flags |= oldflags & ELF_LINK_FORCED_LOCAL; | |
2221 | } | |
d5c73c2f AM |
2222 | return true; |
2223 | } | |
2224 | ||
98ceb8ce AM |
2225 | /* Find any dynamic relocs that apply to read-only sections. */ |
2226 | ||
2227 | static boolean | |
2228 | readonly_dynrelocs (h, inf) | |
2229 | struct elf_link_hash_entry *h; | |
2230 | PTR inf; | |
2231 | { | |
2232 | struct elf32_hppa_link_hash_entry *eh; | |
2233 | struct elf32_hppa_dyn_reloc_entry *p; | |
2234 | ||
2235 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
2236 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2237 | { | |
2238 | asection *s = p->sec->output_section; | |
2239 | ||
2240 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2241 | { | |
2242 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2243 | ||
2244 | info->flags |= DF_TEXTREL; | |
2245 | ||
2246 | /* Not an error, just cut short the traversal. */ | |
2247 | return false; | |
2248 | } | |
2249 | } | |
2250 | return true; | |
2251 | } | |
2252 | ||
30667bf3 AM |
2253 | /* Set the sizes of the dynamic sections. */ |
2254 | ||
2255 | static boolean | |
2256 | elf32_hppa_size_dynamic_sections (output_bfd, info) | |
98ceb8ce | 2257 | bfd *output_bfd ATTRIBUTE_UNUSED; |
30667bf3 AM |
2258 | struct bfd_link_info *info; |
2259 | { | |
83c81bfe | 2260 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2261 | bfd *dynobj; |
98ceb8ce | 2262 | bfd *ibfd; |
30667bf3 AM |
2263 | asection *s; |
2264 | boolean relocs; | |
30667bf3 | 2265 | |
83c81bfe | 2266 | htab = hppa_link_hash_table (info); |
ebe50bae | 2267 | dynobj = htab->elf.dynobj; |
49e9d0d3 AM |
2268 | if (dynobj == NULL) |
2269 | abort (); | |
30667bf3 | 2270 | |
ebe50bae | 2271 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2272 | { |
2273 | /* Set the contents of the .interp section to the interpreter. */ | |
2274 | if (! info->shared) | |
2275 | { | |
2276 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
49e9d0d3 AM |
2277 | if (s == NULL) |
2278 | abort (); | |
30667bf3 AM |
2279 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; |
2280 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2281 | } | |
74d1c347 | 2282 | |
d5c73c2f | 2283 | /* Force millicode symbols local. */ |
ebe50bae | 2284 | elf_link_hash_traverse (&htab->elf, |
d5c73c2f AM |
2285 | clobber_millicode_symbols, |
2286 | info); | |
68fb2e56 AM |
2287 | } |
2288 | else | |
2289 | { | |
2290 | /* Run through the function symbols, looking for any that are | |
a8d02d66 AM |
2291 | PIC, and mark them as needing .plt entries so that %r19 will |
2292 | be set up. */ | |
68fb2e56 | 2293 | if (! info->shared) |
a8d02d66 | 2294 | elf_link_hash_traverse (&htab->elf, mark_PIC_calls, (PTR) info); |
68fb2e56 | 2295 | } |
d5c73c2f | 2296 | |
98ceb8ce AM |
2297 | /* Set up .got and .plt offsets for local syms, and space for local |
2298 | dynamic relocs. */ | |
2299 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
68fb2e56 AM |
2300 | { |
2301 | bfd_signed_vma *local_got; | |
2302 | bfd_signed_vma *end_local_got; | |
2303 | bfd_signed_vma *local_plt; | |
2304 | bfd_signed_vma *end_local_plt; | |
2305 | bfd_size_type locsymcount; | |
2306 | Elf_Internal_Shdr *symtab_hdr; | |
2307 | asection *srel; | |
74d1c347 | 2308 | |
98ceb8ce | 2309 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2310 | continue; |
4dc86686 | 2311 | |
98ceb8ce AM |
2312 | for (s = ibfd->sections; s != NULL; s = s->next) |
2313 | { | |
2314 | bfd_size_type count = elf_section_data (s)->local_dynrel; | |
2315 | ||
2316 | if (count != 0) | |
2317 | { | |
2318 | srel = elf_section_data (s)->sreloc; | |
2319 | srel->_raw_size += count * sizeof (Elf32_External_Rela); | |
2320 | } | |
2321 | } | |
2322 | ||
2323 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2324 | if (!local_got) |
2325 | continue; | |
74d1c347 | 2326 | |
98ceb8ce | 2327 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2328 | locsymcount = symtab_hdr->sh_info; |
2329 | end_local_got = local_got + locsymcount; | |
83c81bfe AM |
2330 | s = htab->sgot; |
2331 | srel = htab->srelgot; | |
68fb2e56 AM |
2332 | for (; local_got < end_local_got; ++local_got) |
2333 | { | |
2334 | if (*local_got > 0) | |
4dc86686 | 2335 | { |
68fb2e56 AM |
2336 | *local_got = s->_raw_size; |
2337 | s->_raw_size += GOT_ENTRY_SIZE; | |
2338 | if (info->shared) | |
2339 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
4dc86686 | 2340 | } |
68fb2e56 AM |
2341 | else |
2342 | *local_got = (bfd_vma) -1; | |
2343 | } | |
74d1c347 | 2344 | |
68fb2e56 AM |
2345 | local_plt = end_local_got; |
2346 | end_local_plt = local_plt + locsymcount; | |
ebe50bae | 2347 | if (! htab->elf.dynamic_sections_created) |
68fb2e56 AM |
2348 | { |
2349 | /* Won't be used, but be safe. */ | |
2350 | for (; local_plt < end_local_plt; ++local_plt) | |
2351 | *local_plt = (bfd_vma) -1; | |
2352 | } | |
2353 | else | |
2354 | { | |
83c81bfe AM |
2355 | s = htab->splt; |
2356 | srel = htab->srelplt; | |
74d1c347 AM |
2357 | for (; local_plt < end_local_plt; ++local_plt) |
2358 | { | |
2359 | if (*local_plt > 0) | |
2360 | { | |
74d1c347 AM |
2361 | *local_plt = s->_raw_size; |
2362 | s->_raw_size += PLT_ENTRY_SIZE; | |
2363 | if (info->shared) | |
4dc86686 | 2364 | srel->_raw_size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2365 | } |
2366 | else | |
2367 | *local_plt = (bfd_vma) -1; | |
2368 | } | |
2369 | } | |
30667bf3 | 2370 | } |
30667bf3 | 2371 | |
a8d02d66 AM |
2372 | if (! info->shared) |
2373 | elf_link_hash_traverse (&htab->elf, allocate_PIC_calls, (PTR) info); | |
2374 | ||
98ceb8ce AM |
2375 | /* Allocate global sym .plt and .got entries, and space for global |
2376 | sym dynamic relocs. */ | |
ebe50bae | 2377 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); |
30667bf3 AM |
2378 | |
2379 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2380 | determined the sizes of the various dynamic sections. Allocate | |
2381 | memory for them. */ | |
2382 | relocs = false; | |
30667bf3 AM |
2383 | for (s = dynobj->sections; s != NULL; s = s->next) |
2384 | { | |
30667bf3 AM |
2385 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2386 | continue; | |
2387 | ||
83c81bfe | 2388 | if (s == htab->splt) |
68fb2e56 | 2389 | { |
83c81bfe | 2390 | if (htab->need_plt_stub) |
68fb2e56 AM |
2391 | { |
2392 | /* Make space for the plt stub at the end of the .plt | |
2393 | section. We want this stub right at the end, up | |
2394 | against the .got section. */ | |
83c81bfe | 2395 | int gotalign = bfd_section_alignment (dynobj, htab->sgot); |
68fb2e56 AM |
2396 | int pltalign = bfd_section_alignment (dynobj, s); |
2397 | bfd_size_type mask; | |
30667bf3 | 2398 | |
68fb2e56 AM |
2399 | if (gotalign > pltalign) |
2400 | bfd_set_section_alignment (dynobj, s, gotalign); | |
2401 | mask = ((bfd_size_type) 1 << gotalign) - 1; | |
2402 | s->_raw_size = (s->_raw_size + sizeof (plt_stub) + mask) & ~mask; | |
2403 | } | |
2404 | } | |
83c81bfe | 2405 | else if (s == htab->sgot) |
68fb2e56 AM |
2406 | ; |
2407 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) | |
30667bf3 AM |
2408 | { |
2409 | if (s->_raw_size != 0) | |
2410 | { | |
4e12ff7f AM |
2411 | /* Remember whether there are any reloc sections other |
2412 | than .rela.plt. */ | |
2413 | if (s != htab->srelplt) | |
2414 | relocs = true; | |
47d89dba | 2415 | |
30667bf3 AM |
2416 | /* We use the reloc_count field as a counter if we need |
2417 | to copy relocs into the output file. */ | |
2418 | s->reloc_count = 0; | |
2419 | } | |
2420 | } | |
30667bf3 AM |
2421 | else |
2422 | { | |
2423 | /* It's not one of our sections, so don't allocate space. */ | |
2424 | continue; | |
2425 | } | |
2426 | ||
2427 | if (s->_raw_size == 0) | |
2428 | { | |
2429 | /* If we don't need this section, strip it from the | |
2430 | output file. This is mostly to handle .rela.bss and | |
2431 | .rela.plt. We must create both sections in | |
2432 | create_dynamic_sections, because they must be created | |
2433 | before the linker maps input sections to output | |
2434 | sections. The linker does that before | |
2435 | adjust_dynamic_symbol is called, and it is that | |
2436 | function which decides whether anything needs to go | |
2437 | into these sections. */ | |
2438 | _bfd_strip_section_from_output (info, s); | |
2439 | continue; | |
2440 | } | |
2441 | ||
2442 | /* Allocate memory for the section contents. Zero it, because | |
2443 | we may not fill in all the reloc sections. */ | |
2444 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); | |
2445 | if (s->contents == NULL && s->_raw_size != 0) | |
2446 | return false; | |
2447 | } | |
2448 | ||
ebe50bae | 2449 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2450 | { |
2451 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2452 | actually has nothing to do with the PLT, it is how we | |
2453 | communicate the LTP value of a load module to the dynamic | |
2454 | linker. */ | |
dc810e39 AM |
2455 | #define add_dynamic_entry(TAG, VAL) \ |
2456 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
2457 | ||
2458 | if (!add_dynamic_entry (DT_PLTGOT, 0)) | |
30667bf3 AM |
2459 | return false; |
2460 | ||
2461 | /* Add some entries to the .dynamic section. We fill in the | |
2462 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2463 | must add the entries now so that we get the correct size for | |
2464 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2465 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2466 | if (!info->shared) |
30667bf3 | 2467 | { |
dc810e39 | 2468 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
30667bf3 AM |
2469 | return false; |
2470 | } | |
2471 | ||
83c81bfe | 2472 | if (htab->srelplt->_raw_size != 0) |
30667bf3 | 2473 | { |
dc810e39 AM |
2474 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
2475 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2476 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
30667bf3 AM |
2477 | return false; |
2478 | } | |
2479 | ||
2480 | if (relocs) | |
2481 | { | |
dc810e39 AM |
2482 | if (!add_dynamic_entry (DT_RELA, 0) |
2483 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2484 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
30667bf3 | 2485 | return false; |
30667bf3 | 2486 | |
98ceb8ce AM |
2487 | /* If any dynamic relocs apply to a read-only section, |
2488 | then we need a DT_TEXTREL entry. */ | |
ebe50bae | 2489 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, (PTR) info); |
98ceb8ce AM |
2490 | |
2491 | if ((info->flags & DF_TEXTREL) != 0) | |
2492 | { | |
2493 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
2494 | return false; | |
2495 | } | |
30667bf3 AM |
2496 | } |
2497 | } | |
dc810e39 | 2498 | #undef add_dynamic_entry |
30667bf3 AM |
2499 | |
2500 | return true; | |
2501 | } | |
2502 | ||
30667bf3 AM |
2503 | /* External entry points for sizing and building linker stubs. */ |
2504 | ||
2505 | /* Determine and set the size of the stub section for a final link. | |
2506 | ||
2507 | The basic idea here is to examine all the relocations looking for | |
2508 | PC-relative calls to a target that is unreachable with a "bl" | |
2509 | instruction. */ | |
2510 | ||
2511 | boolean | |
47d89dba | 2512 | elf32_hppa_size_stubs (output_bfd, stub_bfd, info, multi_subspace, group_size, |
30667bf3 | 2513 | add_stub_section, layout_sections_again) |
25f72752 | 2514 | bfd *output_bfd; |
30667bf3 | 2515 | bfd *stub_bfd; |
30667bf3 | 2516 | struct bfd_link_info *info; |
25f72752 | 2517 | boolean multi_subspace; |
47d89dba | 2518 | bfd_signed_vma group_size; |
30667bf3 AM |
2519 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); |
2520 | void (*layout_sections_again) PARAMS ((void)); | |
2521 | { | |
2522 | bfd *input_bfd; | |
2523 | asection *section; | |
25f72752 | 2524 | asection **input_list, **list; |
30667bf3 | 2525 | Elf_Internal_Sym *local_syms, **all_local_syms; |
25f72752 AM |
2526 | unsigned int bfd_indx, bfd_count; |
2527 | int top_id, top_index; | |
83c81bfe | 2528 | struct elf32_hppa_link_hash_table *htab; |
47d89dba AM |
2529 | bfd_size_type stub_group_size; |
2530 | boolean stubs_always_before_branch; | |
30667bf3 | 2531 | boolean stub_changed = 0; |
25f72752 | 2532 | boolean ret = 0; |
dc810e39 | 2533 | bfd_size_type amt; |
30667bf3 | 2534 | |
83c81bfe | 2535 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
2536 | |
2537 | /* Stash our params away. */ | |
83c81bfe AM |
2538 | htab->stub_bfd = stub_bfd; |
2539 | htab->multi_subspace = multi_subspace; | |
2540 | htab->add_stub_section = add_stub_section; | |
2541 | htab->layout_sections_again = layout_sections_again; | |
47d89dba AM |
2542 | stubs_always_before_branch = group_size < 0; |
2543 | if (group_size < 0) | |
2544 | stub_group_size = -group_size; | |
2545 | else | |
2546 | stub_group_size = group_size; | |
2547 | if (stub_group_size == 1) | |
2548 | { | |
2549 | /* Default values. */ | |
2550 | stub_group_size = 8000000; | |
83c81bfe | 2551 | if (htab->has_17bit_branch || htab->multi_subspace) |
47d89dba | 2552 | stub_group_size = 250000; |
83c81bfe | 2553 | if (htab->has_12bit_branch) |
47d89dba AM |
2554 | stub_group_size = 7812; |
2555 | } | |
30667bf3 | 2556 | |
1badb539 AM |
2557 | /* Count the number of input BFDs and find the top input section id. */ |
2558 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2559 | input_bfd != NULL; |
2560 | input_bfd = input_bfd->link_next) | |
2561 | { | |
2562 | bfd_count += 1; | |
25f72752 AM |
2563 | for (section = input_bfd->sections; |
2564 | section != NULL; | |
2565 | section = section->next) | |
2566 | { | |
2567 | if (top_id < section->id) | |
2568 | top_id = section->id; | |
2569 | } | |
30667bf3 AM |
2570 | } |
2571 | ||
dc810e39 | 2572 | amt = sizeof (struct map_stub) * (top_id + 1); |
83c81bfe AM |
2573 | htab->stub_group = (struct map_stub *) bfd_zmalloc (amt); |
2574 | if (htab->stub_group == NULL) | |
30667bf3 AM |
2575 | return false; |
2576 | ||
1badb539 AM |
2577 | /* Make a list of input sections for each output section included in |
2578 | the link. | |
2579 | ||
2580 | We can't use output_bfd->section_count here to find the top output | |
2581 | section index as some sections may have been removed, and | |
2582 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
2583 | for (section = output_bfd->sections, top_index = 0; | |
2584 | section != NULL; | |
2585 | section = section->next) | |
2586 | { | |
2587 | if (top_index < section->index) | |
2588 | top_index = section->index; | |
2589 | } | |
2590 | ||
dc810e39 AM |
2591 | amt = sizeof (asection *) * (top_index + 1); |
2592 | input_list = (asection **) bfd_malloc (amt); | |
25f72752 AM |
2593 | if (input_list == NULL) |
2594 | return false; | |
2595 | ||
1badb539 AM |
2596 | /* For sections we aren't interested in, mark their entries with a |
2597 | value we can check later. */ | |
2598 | list = input_list + top_index; | |
2599 | do | |
2600 | *list = bfd_abs_section_ptr; | |
2601 | while (list-- != input_list); | |
2602 | ||
2603 | for (section = output_bfd->sections; | |
2604 | section != NULL; | |
2605 | section = section->next) | |
2606 | { | |
47d89dba | 2607 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2608 | input_list[section->index] = NULL; |
2609 | } | |
2610 | ||
2611 | /* Now actually build the lists. */ | |
25f72752 AM |
2612 | for (input_bfd = info->input_bfds; |
2613 | input_bfd != NULL; | |
2614 | input_bfd = input_bfd->link_next) | |
2615 | { | |
2616 | for (section = input_bfd->sections; | |
2617 | section != NULL; | |
2618 | section = section->next) | |
2619 | { | |
2620 | if (section->output_section != NULL | |
1badb539 AM |
2621 | && section->output_section->owner == output_bfd |
2622 | && section->output_section->index <= top_index) | |
25f72752 AM |
2623 | { |
2624 | list = input_list + section->output_section->index; | |
1badb539 AM |
2625 | if (*list != bfd_abs_section_ptr) |
2626 | { | |
2627 | /* Steal the link_sec pointer for our list. */ | |
83c81bfe | 2628 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
1badb539 AM |
2629 | /* This happens to make the list in reverse order, |
2630 | which is what we want. */ | |
2631 | PREV_SEC (section) = *list; | |
2632 | *list = section; | |
2633 | } | |
25f72752 AM |
2634 | } |
2635 | } | |
2636 | } | |
2637 | ||
2638 | /* See whether we can group stub sections together. Grouping stub | |
2639 | sections may result in fewer stubs. More importantly, we need to | |
2640 | put all .init* and .fini* stubs at the beginning of the .init or | |
2641 | .fini output sections respectively, because glibc splits the | |
2642 | _init and _fini functions into multiple parts. Putting a stub in | |
2643 | the middle of a function is not a good idea. */ | |
a017a724 | 2644 | list = input_list + top_index; |
1badb539 | 2645 | do |
25f72752 AM |
2646 | { |
2647 | asection *tail = *list; | |
1badb539 AM |
2648 | if (tail == bfd_abs_section_ptr) |
2649 | continue; | |
25f72752 AM |
2650 | while (tail != NULL) |
2651 | { | |
2652 | asection *curr; | |
2653 | asection *prev; | |
2654 | bfd_size_type total; | |
2655 | ||
2656 | curr = tail; | |
2657 | if (tail->_cooked_size) | |
2658 | total = tail->_cooked_size; | |
2659 | else | |
2660 | total = tail->_raw_size; | |
2661 | while ((prev = PREV_SEC (curr)) != NULL | |
2662 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2663 | < stub_group_size)) |
25f72752 AM |
2664 | curr = prev; |
2665 | ||
2666 | /* OK, the size from the start of CURR to the end is less | |
2667 | than 250000 bytes and thus can be handled by one stub | |
2668 | section. (or the tail section is itself larger than | |
2669 | 250000 bytes, in which case we may be toast.) | |
2670 | We should really be keeping track of the total size of | |
2671 | stubs added here, as stubs contribute to the final output | |
2672 | section size. That's a little tricky, and this way will | |
2673 | only break if stubs added total more than 12144 bytes, or | |
2674 | 1518 long branch stubs. It seems unlikely for more than | |
2675 | 1518 different functions to be called, especially from | |
2676 | code only 250000 bytes long. */ | |
2677 | do | |
2678 | { | |
2679 | prev = PREV_SEC (tail); | |
2680 | /* Set up this stub group. */ | |
83c81bfe | 2681 | htab->stub_group[tail->id].link_sec = curr; |
25f72752 AM |
2682 | } |
2683 | while (tail != curr && (tail = prev) != NULL); | |
2684 | ||
2685 | /* But wait, there's more! Input sections up to 250000 | |
2686 | bytes before the stub section can be handled by it too. */ | |
47d89dba | 2687 | if (!stubs_always_before_branch) |
25f72752 | 2688 | { |
47d89dba AM |
2689 | total = 0; |
2690 | while (prev != NULL | |
2691 | && ((total += tail->output_offset - prev->output_offset) | |
2692 | < stub_group_size)) | |
2693 | { | |
2694 | tail = prev; | |
2695 | prev = PREV_SEC (tail); | |
83c81bfe | 2696 | htab->stub_group[tail->id].link_sec = curr; |
47d89dba | 2697 | } |
25f72752 AM |
2698 | } |
2699 | tail = prev; | |
2700 | } | |
2701 | } | |
1badb539 | 2702 | while (list-- != input_list); |
25f72752 | 2703 | free (input_list); |
1badb539 | 2704 | #undef PREV_SEC |
30667bf3 AM |
2705 | |
2706 | /* We want to read in symbol extension records only once. To do this | |
2707 | we need to read in the local symbols in parallel and save them for | |
2708 | later use; so hold pointers to the local symbols in an array. */ | |
dc810e39 AM |
2709 | amt = sizeof (Elf_Internal_Sym *) * bfd_count; |
2710 | all_local_syms = (Elf_Internal_Sym **) bfd_zmalloc (amt); | |
30667bf3 | 2711 | if (all_local_syms == NULL) |
25f72752 | 2712 | return false; |
30667bf3 AM |
2713 | |
2714 | /* Walk over all the input BFDs, swapping in local symbols. | |
2715 | If we are creating a shared library, create hash entries for the | |
2716 | export stubs. */ | |
25f72752 | 2717 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2718 | input_bfd != NULL; |
25f72752 | 2719 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2720 | { |
2721 | Elf_Internal_Shdr *symtab_hdr; | |
2722 | Elf_Internal_Sym *isym; | |
25f72752 | 2723 | Elf32_External_Sym *ext_syms, *esym, *end_sy; |
dc810e39 | 2724 | bfd_size_type sec_size; |
edd21aca | 2725 | |
252b5132 RH |
2726 | /* We'll need the symbol table in a second. */ |
2727 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2728 | if (symtab_hdr->sh_info == 0) | |
2729 | continue; | |
2730 | ||
edd21aca AM |
2731 | /* We need an array of the local symbols attached to the input bfd. |
2732 | Unfortunately, we're going to have to read & swap them in. */ | |
dc810e39 AM |
2733 | sec_size = symtab_hdr->sh_info; |
2734 | sec_size *= sizeof (Elf_Internal_Sym); | |
2735 | local_syms = (Elf_Internal_Sym *) bfd_malloc (sec_size); | |
edd21aca AM |
2736 | if (local_syms == NULL) |
2737 | { | |
2738 | goto error_ret_free_local; | |
2739 | } | |
25f72752 | 2740 | all_local_syms[bfd_indx] = local_syms; |
dc810e39 AM |
2741 | sec_size = symtab_hdr->sh_info; |
2742 | sec_size *= sizeof (Elf32_External_Sym); | |
2743 | ext_syms = (Elf32_External_Sym *) bfd_malloc (sec_size); | |
edd21aca AM |
2744 | if (ext_syms == NULL) |
2745 | { | |
2746 | goto error_ret_free_local; | |
2747 | } | |
2748 | ||
2749 | if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 2750 | || (bfd_bread (ext_syms, sec_size, input_bfd) != sec_size)) |
edd21aca AM |
2751 | { |
2752 | free (ext_syms); | |
2753 | goto error_ret_free_local; | |
2754 | } | |
2755 | ||
2756 | /* Swap the local symbols in. */ | |
2757 | isym = local_syms; | |
2758 | esym = ext_syms; | |
25f72752 | 2759 | for (end_sy = esym + symtab_hdr->sh_info; esym < end_sy; esym++, isym++) |
edd21aca AM |
2760 | bfd_elf32_swap_symbol_in (input_bfd, esym, isym); |
2761 | ||
2762 | /* Now we can free the external symbols. */ | |
2763 | free (ext_syms); | |
edd21aca | 2764 | |
83c81bfe | 2765 | if (info->shared && htab->multi_subspace) |
30667bf3 | 2766 | { |
25f72752 AM |
2767 | struct elf_link_hash_entry **sym_hashes; |
2768 | struct elf_link_hash_entry **end_hashes; | |
30667bf3 AM |
2769 | unsigned int symcount; |
2770 | ||
2771 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2772 | - symtab_hdr->sh_info); | |
25f72752 AM |
2773 | sym_hashes = elf_sym_hashes (input_bfd); |
2774 | end_hashes = sym_hashes + symcount; | |
30667bf3 AM |
2775 | |
2776 | /* Look through the global syms for functions; We need to | |
2777 | build export stubs for all globally visible functions. */ | |
25f72752 | 2778 | for (; sym_hashes < end_hashes; sym_hashes++) |
30667bf3 AM |
2779 | { |
2780 | struct elf32_hppa_link_hash_entry *hash; | |
2781 | ||
25f72752 | 2782 | hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes; |
30667bf3 AM |
2783 | |
2784 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2785 | || hash->elf.root.type == bfd_link_hash_warning) | |
2786 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2787 | hash->elf.root.u.i.link); | |
2788 | ||
2789 | /* At this point in the link, undefined syms have been | |
2790 | resolved, so we need to check that the symbol was | |
2791 | defined in this BFD. */ | |
2792 | if ((hash->elf.root.type == bfd_link_hash_defined | |
2793 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2794 | && hash->elf.type == STT_FUNC | |
2795 | && hash->elf.root.u.def.section->output_section != NULL | |
25f72752 AM |
2796 | && (hash->elf.root.u.def.section->output_section->owner |
2797 | == output_bfd) | |
30667bf3 AM |
2798 | && hash->elf.root.u.def.section->owner == input_bfd |
2799 | && (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
2800 | && !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) | |
2801 | && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT) | |
2802 | { | |
2803 | asection *sec; | |
2804 | const char *stub_name; | |
2805 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2806 | ||
2807 | sec = hash->elf.root.u.def.section; | |
2808 | stub_name = hash->elf.root.root.string; | |
83c81bfe | 2809 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
2810 | stub_name, |
2811 | false, false); | |
2812 | if (stub_entry == NULL) | |
2813 | { | |
83c81bfe | 2814 | stub_entry = hppa_add_stub (stub_name, sec, htab); |
30667bf3 AM |
2815 | if (!stub_entry) |
2816 | goto error_ret_free_local; | |
2817 | ||
2818 | stub_entry->target_value = hash->elf.root.u.def.value; | |
2819 | stub_entry->target_section = hash->elf.root.u.def.section; | |
2820 | stub_entry->stub_type = hppa_stub_export; | |
2821 | stub_entry->h = hash; | |
2822 | stub_changed = 1; | |
2823 | } | |
2824 | else | |
2825 | { | |
2826 | (*_bfd_error_handler) (_("%s: duplicate export stub %s"), | |
8f615d07 AM |
2827 | bfd_archive_filename (input_bfd), |
2828 | stub_name); | |
30667bf3 AM |
2829 | } |
2830 | } | |
2831 | } | |
30667bf3 AM |
2832 | } |
2833 | } | |
edd21aca AM |
2834 | |
2835 | while (1) | |
2836 | { | |
30667bf3 AM |
2837 | asection *stub_sec; |
2838 | ||
25f72752 | 2839 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2840 | input_bfd != NULL; |
25f72752 | 2841 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2842 | { |
2843 | Elf_Internal_Shdr *symtab_hdr; | |
2844 | ||
2845 | /* We'll need the symbol table in a second. */ | |
2846 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2847 | if (symtab_hdr->sh_info == 0) | |
2848 | continue; | |
2849 | ||
25f72752 | 2850 | local_syms = all_local_syms[bfd_indx]; |
30667bf3 AM |
2851 | |
2852 | /* Walk over each section attached to the input bfd. */ | |
2853 | for (section = input_bfd->sections; | |
2854 | section != NULL; | |
25f72752 | 2855 | section = section->next) |
30667bf3 AM |
2856 | { |
2857 | Elf_Internal_Shdr *input_rel_hdr; | |
2858 | Elf32_External_Rela *external_relocs, *erelaend, *erela; | |
2859 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; | |
2860 | ||
2861 | /* If there aren't any relocs, then there's nothing more | |
2862 | to do. */ | |
2863 | if ((section->flags & SEC_RELOC) == 0 | |
2864 | || section->reloc_count == 0) | |
2865 | continue; | |
2866 | ||
25f72752 AM |
2867 | /* If this section is a link-once section that will be |
2868 | discarded, then don't create any stubs. */ | |
2869 | if (section->output_section == NULL | |
2870 | || section->output_section->owner != output_bfd) | |
2871 | continue; | |
2872 | ||
30667bf3 | 2873 | /* Allocate space for the external relocations. */ |
dc810e39 AM |
2874 | amt = section->reloc_count; |
2875 | amt *= sizeof (Elf32_External_Rela); | |
2876 | external_relocs = (Elf32_External_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
2877 | if (external_relocs == NULL) |
2878 | { | |
2879 | goto error_ret_free_local; | |
2880 | } | |
2881 | ||
2882 | /* Likewise for the internal relocations. */ | |
dc810e39 AM |
2883 | amt = section->reloc_count; |
2884 | amt *= sizeof (Elf_Internal_Rela); | |
2885 | internal_relocs = (Elf_Internal_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
2886 | if (internal_relocs == NULL) |
2887 | { | |
2888 | free (external_relocs); | |
2889 | goto error_ret_free_local; | |
2890 | } | |
2891 | ||
2892 | /* Read in the external relocs. */ | |
2893 | input_rel_hdr = &elf_section_data (section)->rel_hdr; | |
2894 | if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 2895 | || bfd_bread (external_relocs, |
30667bf3 AM |
2896 | input_rel_hdr->sh_size, |
2897 | input_bfd) != input_rel_hdr->sh_size) | |
2898 | { | |
2899 | free (external_relocs); | |
2900 | error_ret_free_internal: | |
2901 | free (internal_relocs); | |
2902 | goto error_ret_free_local; | |
2903 | } | |
2904 | ||
2905 | /* Swap in the relocs. */ | |
2906 | erela = external_relocs; | |
2907 | erelaend = erela + section->reloc_count; | |
2908 | irela = internal_relocs; | |
2909 | for (; erela < erelaend; erela++, irela++) | |
2910 | bfd_elf32_swap_reloca_in (input_bfd, erela, irela); | |
2911 | ||
2912 | /* We're done with the external relocs, free them. */ | |
2913 | free (external_relocs); | |
2914 | ||
2915 | /* Now examine each relocation. */ | |
2916 | irela = internal_relocs; | |
2917 | irelaend = irela + section->reloc_count; | |
2918 | for (; irela < irelaend; irela++) | |
2919 | { | |
2920 | unsigned int r_type, r_indx; | |
2921 | enum elf32_hppa_stub_type stub_type; | |
2922 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2923 | asection *sym_sec; | |
2924 | bfd_vma sym_value; | |
2925 | bfd_vma destination; | |
2926 | struct elf32_hppa_link_hash_entry *hash; | |
2927 | char *stub_name; | |
25f72752 | 2928 | const asection *id_sec; |
30667bf3 AM |
2929 | |
2930 | r_type = ELF32_R_TYPE (irela->r_info); | |
2931 | r_indx = ELF32_R_SYM (irela->r_info); | |
2932 | ||
2933 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2934 | { | |
2935 | bfd_set_error (bfd_error_bad_value); | |
2936 | goto error_ret_free_internal; | |
2937 | } | |
2938 | ||
2939 | /* Only look for stubs on call instructions. */ | |
2940 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
2941 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
2942 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
2943 | continue; | |
2944 | ||
2945 | /* Now determine the call target, its name, value, | |
2946 | section. */ | |
2947 | sym_sec = NULL; | |
2948 | sym_value = 0; | |
2949 | destination = 0; | |
2950 | hash = NULL; | |
2951 | if (r_indx < symtab_hdr->sh_info) | |
2952 | { | |
2953 | /* It's a local symbol. */ | |
2954 | Elf_Internal_Sym *sym; | |
2955 | Elf_Internal_Shdr *hdr; | |
2956 | ||
2957 | sym = local_syms + r_indx; | |
2958 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
2959 | sym_sec = hdr->bfd_section; | |
2960 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
2961 | sym_value = sym->st_value; | |
2962 | destination = (sym_value + irela->r_addend | |
2963 | + sym_sec->output_offset | |
2964 | + sym_sec->output_section->vma); | |
2965 | } | |
2966 | else | |
2967 | { | |
2968 | /* It's an external symbol. */ | |
2969 | int e_indx; | |
2970 | ||
2971 | e_indx = r_indx - symtab_hdr->sh_info; | |
2972 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2973 | elf_sym_hashes (input_bfd)[e_indx]); | |
2974 | ||
2975 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2976 | || hash->elf.root.type == bfd_link_hash_warning) | |
2977 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2978 | hash->elf.root.u.i.link); | |
2979 | ||
2980 | if (hash->elf.root.type == bfd_link_hash_defined | |
2981 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2982 | { | |
2983 | sym_sec = hash->elf.root.u.def.section; | |
2984 | sym_value = hash->elf.root.u.def.value; | |
2985 | if (sym_sec->output_section != NULL) | |
2986 | destination = (sym_value + irela->r_addend | |
2987 | + sym_sec->output_offset | |
2988 | + sym_sec->output_section->vma); | |
2989 | } | |
2990 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
2991 | { | |
2992 | if (! info->shared) | |
2993 | continue; | |
2994 | } | |
2995 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
2996 | { | |
2997 | if (! (info->shared | |
2998 | && !info->no_undefined | |
2999 | && (ELF_ST_VISIBILITY (hash->elf.other) | |
3000 | == STV_DEFAULT))) | |
3001 | continue; | |
3002 | } | |
3003 | else | |
3004 | { | |
3005 | bfd_set_error (bfd_error_bad_value); | |
3006 | goto error_ret_free_internal; | |
3007 | } | |
3008 | } | |
3009 | ||
3010 | /* Determine what (if any) linker stub is needed. */ | |
3011 | stub_type = hppa_type_of_stub (section, irela, hash, | |
3012 | destination); | |
3013 | if (stub_type == hppa_stub_none) | |
3014 | continue; | |
3015 | ||
25f72752 | 3016 | /* Support for grouping stub sections. */ |
83c81bfe | 3017 | id_sec = htab->stub_group[section->id].link_sec; |
25f72752 | 3018 | |
30667bf3 | 3019 | /* Get the name of this stub. */ |
25f72752 | 3020 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela); |
30667bf3 AM |
3021 | if (!stub_name) |
3022 | goto error_ret_free_internal; | |
3023 | ||
83c81bfe | 3024 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
3025 | stub_name, |
3026 | false, false); | |
3027 | if (stub_entry != NULL) | |
3028 | { | |
3029 | /* The proper stub has already been created. */ | |
3030 | free (stub_name); | |
3031 | continue; | |
3032 | } | |
3033 | ||
83c81bfe | 3034 | stub_entry = hppa_add_stub (stub_name, section, htab); |
30667bf3 AM |
3035 | if (stub_entry == NULL) |
3036 | { | |
3037 | free (stub_name); | |
3038 | goto error_ret_free_local; | |
3039 | } | |
3040 | ||
3041 | stub_entry->target_value = sym_value; | |
3042 | stub_entry->target_section = sym_sec; | |
3043 | stub_entry->stub_type = stub_type; | |
3044 | if (info->shared) | |
3045 | { | |
3046 | if (stub_type == hppa_stub_import) | |
3047 | stub_entry->stub_type = hppa_stub_import_shared; | |
98ceb8ce | 3048 | else if (stub_type == hppa_stub_long_branch) |
30667bf3 AM |
3049 | stub_entry->stub_type = hppa_stub_long_branch_shared; |
3050 | } | |
3051 | stub_entry->h = hash; | |
3052 | stub_changed = 1; | |
3053 | } | |
3054 | ||
3055 | /* We're done with the internal relocs, free them. */ | |
3056 | free (internal_relocs); | |
3057 | } | |
3058 | } | |
3059 | ||
3060 | if (!stub_changed) | |
3061 | break; | |
3062 | ||
3063 | /* OK, we've added some stubs. Find out the new size of the | |
3064 | stub sections. */ | |
83c81bfe | 3065 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3066 | stub_sec != NULL; |
3067 | stub_sec = stub_sec->next) | |
3068 | { | |
74d1c347 AM |
3069 | stub_sec->_raw_size = 0; |
3070 | stub_sec->_cooked_size = 0; | |
3071 | } | |
74d1c347 | 3072 | |
83c81bfe | 3073 | bfd_hash_traverse (&htab->stub_hash_table, hppa_size_one_stub, htab); |
74d1c347 | 3074 | |
30667bf3 | 3075 | /* Ask the linker to do its stuff. */ |
83c81bfe | 3076 | (*htab->layout_sections_again) (); |
30667bf3 AM |
3077 | stub_changed = 0; |
3078 | } | |
3079 | ||
25f72752 | 3080 | ret = 1; |
30667bf3 AM |
3081 | |
3082 | error_ret_free_local: | |
25f72752 AM |
3083 | while (bfd_count-- > 0) |
3084 | if (all_local_syms[bfd_count]) | |
3085 | free (all_local_syms[bfd_count]); | |
30667bf3 AM |
3086 | free (all_local_syms); |
3087 | ||
25f72752 | 3088 | return ret; |
30667bf3 AM |
3089 | } |
3090 | ||
30667bf3 AM |
3091 | /* For a final link, this function is called after we have sized the |
3092 | stubs to provide a value for __gp. */ | |
3093 | ||
3094 | boolean | |
3095 | elf32_hppa_set_gp (abfd, info) | |
3096 | bfd *abfd; | |
3097 | struct bfd_link_info *info; | |
3098 | { | |
83c81bfe | 3099 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3100 | struct elf_link_hash_entry *h; |
3101 | asection *sec; | |
3102 | bfd_vma gp_val; | |
3103 | ||
83c81bfe | 3104 | htab = hppa_link_hash_table (info); |
ebe50bae | 3105 | h = elf_link_hash_lookup (&htab->elf, "$global$", false, false, false); |
30667bf3 | 3106 | |
df8634e3 AM |
3107 | if (h != NULL |
3108 | && (h->root.type == bfd_link_hash_defined | |
3109 | || h->root.type == bfd_link_hash_defweak)) | |
30667bf3 AM |
3110 | { |
3111 | gp_val = h->root.u.def.value; | |
3112 | sec = h->root.u.def.section; | |
3113 | } | |
3114 | else | |
3115 | { | |
74d1c347 AM |
3116 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
3117 | or .data, if these sections exist. In the case of choosing | |
3118 | .plt try to make the LTP ideal for addressing anywhere in the | |
3119 | .plt or .got with a 14 bit signed offset. Typically, the end | |
3120 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
3121 | if either the .plt or .got is larger than 0x2000. If both | |
3122 | the .plt and .got are smaller than 0x2000, choose the end of | |
3123 | the .plt section. */ | |
3124 | ||
83c81bfe | 3125 | sec = htab->splt; |
74d1c347 | 3126 | if (sec != NULL) |
30667bf3 | 3127 | { |
74d1c347 AM |
3128 | gp_val = sec->_raw_size; |
3129 | if (gp_val > 0x2000 | |
83c81bfe | 3130 | || (htab->sgot && htab->sgot->_raw_size > 0x2000)) |
74d1c347 AM |
3131 | { |
3132 | gp_val = 0x2000; | |
3133 | } | |
3134 | } | |
3135 | else | |
3136 | { | |
3137 | gp_val = 0; | |
83c81bfe | 3138 | sec = htab->sgot; |
74d1c347 AM |
3139 | if (sec != NULL) |
3140 | { | |
3141 | /* We know we don't have a .plt. If .got is large, | |
3142 | offset our LTP. */ | |
3143 | if (sec->_raw_size > 0x2000) | |
3144 | gp_val = 0x2000; | |
3145 | } | |
3146 | else | |
3147 | { | |
3148 | /* No .plt or .got. Who cares what the LTP is? */ | |
3149 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3150 | } | |
30667bf3 | 3151 | } |
df8634e3 AM |
3152 | |
3153 | if (h != NULL) | |
3154 | { | |
3155 | h->root.type = bfd_link_hash_defined; | |
3156 | h->root.u.def.value = gp_val; | |
3157 | if (sec != NULL) | |
3158 | h->root.u.def.section = sec; | |
3159 | else | |
3160 | h->root.u.def.section = bfd_abs_section_ptr; | |
3161 | } | |
30667bf3 AM |
3162 | } |
3163 | ||
b32b5d6e | 3164 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
3165 | gp_val += sec->output_section->vma + sec->output_offset; |
3166 | ||
3167 | elf_gp (abfd) = gp_val; | |
30667bf3 AM |
3168 | return true; |
3169 | } | |
3170 | ||
30667bf3 AM |
3171 | /* Build all the stubs associated with the current output file. The |
3172 | stubs are kept in a hash table attached to the main linker hash | |
3173 | table. We also set up the .plt entries for statically linked PIC | |
3174 | functions here. This function is called via hppaelf_finish in the | |
3175 | linker. */ | |
3176 | ||
3177 | boolean | |
3178 | elf32_hppa_build_stubs (info) | |
3179 | struct bfd_link_info *info; | |
3180 | { | |
3181 | asection *stub_sec; | |
3182 | struct bfd_hash_table *table; | |
83c81bfe | 3183 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3184 | |
83c81bfe | 3185 | htab = hppa_link_hash_table (info); |
30667bf3 | 3186 | |
83c81bfe | 3187 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3188 | stub_sec != NULL; |
3189 | stub_sec = stub_sec->next) | |
3190 | { | |
dc810e39 | 3191 | bfd_size_type size; |
30667bf3 AM |
3192 | |
3193 | /* Allocate memory to hold the linker stubs. */ | |
74d1c347 | 3194 | size = stub_sec->_raw_size; |
83c81bfe | 3195 | stub_sec->contents = (unsigned char *) bfd_zalloc (htab->stub_bfd, size); |
30667bf3 AM |
3196 | if (stub_sec->contents == NULL && size != 0) |
3197 | return false; | |
74d1c347 | 3198 | stub_sec->_raw_size = 0; |
30667bf3 AM |
3199 | } |
3200 | ||
3201 | /* Build the stubs as directed by the stub hash table. */ | |
83c81bfe | 3202 | table = &htab->stub_hash_table; |
30667bf3 AM |
3203 | bfd_hash_traverse (table, hppa_build_one_stub, info); |
3204 | ||
3205 | return true; | |
3206 | } | |
3207 | ||
c46b7515 AM |
3208 | /* Perform a final link. */ |
3209 | ||
3210 | static boolean | |
3211 | elf32_hppa_final_link (abfd, info) | |
3212 | bfd *abfd; | |
3213 | struct bfd_link_info *info; | |
3214 | { | |
3215 | asection *s; | |
3216 | ||
4dc86686 AM |
3217 | /* Invoke the regular ELF linker to do all the work. */ |
3218 | if (!bfd_elf32_bfd_final_link (abfd, info)) | |
c46b7515 AM |
3219 | return false; |
3220 | ||
3221 | /* If we're producing a final executable, sort the contents of the | |
3222 | unwind section. Magic section names, but this is much safer than | |
3223 | having elf32_hppa_relocate_section remember where SEGREL32 relocs | |
3224 | occurred. Consider what happens if someone inept creates a | |
3225 | linker script that puts unwind information in .text. */ | |
3226 | s = bfd_get_section_by_name (abfd, ".PARISC.unwind"); | |
3227 | if (s != NULL) | |
3228 | { | |
3229 | bfd_size_type size; | |
3230 | char *contents; | |
3231 | ||
3232 | size = s->_raw_size; | |
3233 | contents = bfd_malloc (size); | |
3234 | if (contents == NULL) | |
3235 | return false; | |
3236 | ||
3237 | if (! bfd_get_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3238 | return false; | |
3239 | ||
dc810e39 | 3240 | qsort (contents, (size_t) (size / 16), 16, hppa_unwind_entry_compare); |
c46b7515 AM |
3241 | |
3242 | if (! bfd_set_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3243 | return false; | |
3244 | } | |
3245 | return true; | |
3246 | } | |
3247 | ||
3248 | /* Record the lowest address for the data and text segments. */ | |
3249 | ||
3250 | static void | |
3251 | hppa_record_segment_addr (abfd, section, data) | |
3252 | bfd *abfd ATTRIBUTE_UNUSED; | |
3253 | asection *section; | |
3254 | PTR data; | |
3255 | { | |
83c81bfe | 3256 | struct elf32_hppa_link_hash_table *htab; |
c46b7515 | 3257 | |
83c81bfe | 3258 | htab = (struct elf32_hppa_link_hash_table *) data; |
c46b7515 AM |
3259 | |
3260 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3261 | { | |
3262 | bfd_vma value = section->vma - section->filepos; | |
3263 | ||
3264 | if ((section->flags & SEC_READONLY) != 0) | |
3265 | { | |
83c81bfe AM |
3266 | if (value < htab->text_segment_base) |
3267 | htab->text_segment_base = value; | |
c46b7515 AM |
3268 | } |
3269 | else | |
3270 | { | |
83c81bfe AM |
3271 | if (value < htab->data_segment_base) |
3272 | htab->data_segment_base = value; | |
c46b7515 AM |
3273 | } |
3274 | } | |
3275 | } | |
3276 | ||
30667bf3 AM |
3277 | /* Perform a relocation as part of a final link. */ |
3278 | ||
3279 | static bfd_reloc_status_type | |
83c81bfe | 3280 | final_link_relocate (input_section, contents, rel, value, htab, sym_sec, h) |
30667bf3 AM |
3281 | asection *input_section; |
3282 | bfd_byte *contents; | |
3283 | const Elf_Internal_Rela *rel; | |
3284 | bfd_vma value; | |
83c81bfe | 3285 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3286 | asection *sym_sec; |
3287 | struct elf32_hppa_link_hash_entry *h; | |
3288 | { | |
3289 | int insn; | |
3290 | unsigned int r_type = ELF32_R_TYPE (rel->r_info); | |
3291 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; | |
3292 | int r_format = howto->bitsize; | |
3293 | enum hppa_reloc_field_selector_type_alt r_field; | |
3294 | bfd *input_bfd = input_section->owner; | |
3295 | bfd_vma offset = rel->r_offset; | |
3296 | bfd_vma max_branch_offset = 0; | |
3297 | bfd_byte *hit_data = contents + offset; | |
3298 | bfd_signed_vma addend = rel->r_addend; | |
3299 | bfd_vma location; | |
3300 | struct elf32_hppa_stub_hash_entry *stub_entry = NULL; | |
3301 | int val; | |
3302 | ||
3303 | if (r_type == R_PARISC_NONE) | |
3304 | return bfd_reloc_ok; | |
3305 | ||
3306 | insn = bfd_get_32 (input_bfd, hit_data); | |
3307 | ||
3308 | /* Find out where we are and where we're going. */ | |
3309 | location = (offset + | |
3310 | input_section->output_offset + | |
3311 | input_section->output_section->vma); | |
3312 | ||
3313 | switch (r_type) | |
3314 | { | |
3315 | case R_PARISC_PCREL12F: | |
3316 | case R_PARISC_PCREL17F: | |
3317 | case R_PARISC_PCREL22F: | |
3318 | /* If this is a call to a function defined in another dynamic | |
3319 | library, or if it is a call to a PIC function in the same | |
74d1c347 AM |
3320 | object, or if this is a shared link and it is a call to a |
3321 | weak symbol which may or may not be in the same object, then | |
3322 | find the import stub in the stub hash. */ | |
30667bf3 AM |
3323 | if (sym_sec == NULL |
3324 | || sym_sec->output_section == NULL | |
12cca0d2 AM |
3325 | || (h != NULL |
3326 | && ((h->maybe_pic_call | |
3327 | && !(input_section->flags & SEC_HAS_GOT_REF)) | |
3328 | || (h->elf.root.type == bfd_link_hash_defweak | |
3329 | && h->elf.dynindx != -1 | |
3330 | && h->elf.plt.offset != (bfd_vma) -1)))) | |
30667bf3 AM |
3331 | { |
3332 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3333 | h, rel, htab); |
30667bf3 AM |
3334 | if (stub_entry != NULL) |
3335 | { | |
3336 | value = (stub_entry->stub_offset | |
3337 | + stub_entry->stub_sec->output_offset | |
3338 | + stub_entry->stub_sec->output_section->vma); | |
3339 | addend = 0; | |
3340 | } | |
3341 | else if (sym_sec == NULL && h != NULL | |
3342 | && h->elf.root.type == bfd_link_hash_undefweak) | |
3343 | { | |
db20fd76 AM |
3344 | /* It's OK if undefined weak. Calls to undefined weak |
3345 | symbols behave as if the "called" function | |
3346 | immediately returns. We can thus call to a weak | |
3347 | function without first checking whether the function | |
3348 | is defined. */ | |
30667bf3 | 3349 | value = location; |
db20fd76 | 3350 | addend = 8; |
30667bf3 AM |
3351 | } |
3352 | else | |
3353 | return bfd_reloc_notsupported; | |
3354 | } | |
3355 | /* Fall thru. */ | |
3356 | ||
3357 | case R_PARISC_PCREL21L: | |
3358 | case R_PARISC_PCREL17C: | |
3359 | case R_PARISC_PCREL17R: | |
3360 | case R_PARISC_PCREL14R: | |
3361 | case R_PARISC_PCREL14F: | |
3362 | /* Make it a pc relative offset. */ | |
3363 | value -= location; | |
3364 | addend -= 8; | |
3365 | break; | |
3366 | ||
3367 | case R_PARISC_DPREL21L: | |
3368 | case R_PARISC_DPREL14R: | |
3369 | case R_PARISC_DPREL14F: | |
3370 | /* For all the DP relative relocations, we need to examine the symbol's | |
3371 | section. If it's a code section, then "data pointer relative" makes | |
3372 | no sense. In that case we don't adjust the "value", and for 21 bit | |
3373 | addil instructions, we change the source addend register from %dp to | |
3374 | %r0. This situation commonly arises when a variable's "constness" | |
3375 | is declared differently from the way the variable is defined. For | |
3376 | instance: "extern int foo" with foo defined as "const int foo". */ | |
3377 | if (sym_sec == NULL) | |
3378 | break; | |
3379 | if ((sym_sec->flags & SEC_CODE) != 0) | |
3380 | { | |
3381 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3382 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3383 | { | |
3384 | insn &= ~ (0x1f << 21); | |
74d1c347 | 3385 | #if 1 /* debug them. */ |
30667bf3 AM |
3386 | (*_bfd_error_handler) |
3387 | (_("%s(%s+0x%lx): fixing %s"), | |
8f615d07 | 3388 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3389 | input_section->name, |
3390 | (long) rel->r_offset, | |
3391 | howto->name); | |
3392 | #endif | |
3393 | } | |
3394 | /* Now try to make things easy for the dynamic linker. */ | |
3395 | ||
3396 | break; | |
3397 | } | |
74d1c347 | 3398 | /* Fall thru. */ |
30667bf3 AM |
3399 | |
3400 | case R_PARISC_DLTIND21L: | |
3401 | case R_PARISC_DLTIND14R: | |
3402 | case R_PARISC_DLTIND14F: | |
3403 | value -= elf_gp (input_section->output_section->owner); | |
3404 | break; | |
3405 | ||
c46b7515 AM |
3406 | case R_PARISC_SEGREL32: |
3407 | if ((sym_sec->flags & SEC_CODE) != 0) | |
83c81bfe | 3408 | value -= htab->text_segment_base; |
c46b7515 | 3409 | else |
83c81bfe | 3410 | value -= htab->data_segment_base; |
c46b7515 AM |
3411 | break; |
3412 | ||
30667bf3 AM |
3413 | default: |
3414 | break; | |
3415 | } | |
3416 | ||
3417 | switch (r_type) | |
3418 | { | |
3419 | case R_PARISC_DIR32: | |
47d89dba | 3420 | case R_PARISC_DIR14F: |
30667bf3 AM |
3421 | case R_PARISC_DIR17F: |
3422 | case R_PARISC_PCREL17C: | |
3423 | case R_PARISC_PCREL14F: | |
3424 | case R_PARISC_DPREL14F: | |
3425 | case R_PARISC_PLABEL32: | |
3426 | case R_PARISC_DLTIND14F: | |
3427 | case R_PARISC_SEGBASE: | |
3428 | case R_PARISC_SEGREL32: | |
3429 | r_field = e_fsel; | |
3430 | break; | |
3431 | ||
3432 | case R_PARISC_DIR21L: | |
3433 | case R_PARISC_PCREL21L: | |
3434 | case R_PARISC_DPREL21L: | |
3435 | case R_PARISC_PLABEL21L: | |
3436 | case R_PARISC_DLTIND21L: | |
3437 | r_field = e_lrsel; | |
3438 | break; | |
3439 | ||
3440 | case R_PARISC_DIR17R: | |
3441 | case R_PARISC_PCREL17R: | |
3442 | case R_PARISC_DIR14R: | |
3443 | case R_PARISC_PCREL14R: | |
3444 | case R_PARISC_DPREL14R: | |
3445 | case R_PARISC_PLABEL14R: | |
3446 | case R_PARISC_DLTIND14R: | |
3447 | r_field = e_rrsel; | |
3448 | break; | |
3449 | ||
3450 | case R_PARISC_PCREL12F: | |
3451 | case R_PARISC_PCREL17F: | |
3452 | case R_PARISC_PCREL22F: | |
3453 | r_field = e_fsel; | |
3454 | ||
3455 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3456 | { | |
3457 | max_branch_offset = (1 << (17-1)) << 2; | |
3458 | } | |
3459 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3460 | { | |
3461 | max_branch_offset = (1 << (12-1)) << 2; | |
3462 | } | |
3463 | else | |
3464 | { | |
3465 | max_branch_offset = (1 << (22-1)) << 2; | |
3466 | } | |
3467 | ||
3468 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3469 | undefined syms. We've already checked for a stub for the | |
3470 | shared undefined case. */ | |
3471 | if (sym_sec == NULL) | |
3472 | break; | |
3473 | ||
3474 | /* If the branch is out of reach, then redirect the | |
3475 | call to the local stub for this function. */ | |
3476 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3477 | { | |
3478 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3479 | h, rel, htab); |
30667bf3 AM |
3480 | if (stub_entry == NULL) |
3481 | return bfd_reloc_notsupported; | |
3482 | ||
3483 | /* Munge up the value and addend so that we call the stub | |
3484 | rather than the procedure directly. */ | |
3485 | value = (stub_entry->stub_offset | |
3486 | + stub_entry->stub_sec->output_offset | |
3487 | + stub_entry->stub_sec->output_section->vma | |
3488 | - location); | |
3489 | addend = -8; | |
3490 | } | |
3491 | break; | |
3492 | ||
3493 | /* Something we don't know how to handle. */ | |
3494 | default: | |
3495 | return bfd_reloc_notsupported; | |
3496 | } | |
3497 | ||
3498 | /* Make sure we can reach the stub. */ | |
3499 | if (max_branch_offset != 0 | |
3500 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3501 | { | |
3502 | (*_bfd_error_handler) | |
3503 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), | |
8f615d07 | 3504 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3505 | input_section->name, |
3506 | (long) rel->r_offset, | |
3507 | stub_entry->root.string); | |
ce757d15 | 3508 | bfd_set_error (bfd_error_bad_value); |
30667bf3 AM |
3509 | return bfd_reloc_notsupported; |
3510 | } | |
3511 | ||
3512 | val = hppa_field_adjust (value, addend, r_field); | |
3513 | ||
3514 | switch (r_type) | |
3515 | { | |
3516 | case R_PARISC_PCREL12F: | |
3517 | case R_PARISC_PCREL17C: | |
3518 | case R_PARISC_PCREL17F: | |
3519 | case R_PARISC_PCREL17R: | |
3520 | case R_PARISC_PCREL22F: | |
3521 | case R_PARISC_DIR17F: | |
3522 | case R_PARISC_DIR17R: | |
3523 | /* This is a branch. Divide the offset by four. | |
3524 | Note that we need to decide whether it's a branch or | |
3525 | otherwise by inspecting the reloc. Inspecting insn won't | |
3526 | work as insn might be from a .word directive. */ | |
3527 | val >>= 2; | |
3528 | break; | |
3529 | ||
3530 | default: | |
3531 | break; | |
3532 | } | |
3533 | ||
3534 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3535 | ||
3536 | /* Update the instruction word. */ | |
74d1c347 | 3537 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3538 | return bfd_reloc_ok; |
3539 | } | |
3540 | ||
30667bf3 AM |
3541 | /* Relocate an HPPA ELF section. */ |
3542 | ||
3543 | static boolean | |
3544 | elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section, | |
3545 | contents, relocs, local_syms, local_sections) | |
3546 | bfd *output_bfd; | |
3547 | struct bfd_link_info *info; | |
3548 | bfd *input_bfd; | |
3549 | asection *input_section; | |
3550 | bfd_byte *contents; | |
3551 | Elf_Internal_Rela *relocs; | |
3552 | Elf_Internal_Sym *local_syms; | |
3553 | asection **local_sections; | |
3554 | { | |
30667bf3 | 3555 | bfd_vma *local_got_offsets; |
83c81bfe | 3556 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3557 | Elf_Internal_Shdr *symtab_hdr; |
3558 | Elf_Internal_Rela *rel; | |
3559 | Elf_Internal_Rela *relend; | |
30667bf3 AM |
3560 | |
3561 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3562 | ||
83c81bfe | 3563 | htab = hppa_link_hash_table (info); |
74d1c347 | 3564 | local_got_offsets = elf_local_got_offsets (input_bfd); |
30667bf3 AM |
3565 | |
3566 | rel = relocs; | |
3567 | relend = relocs + input_section->reloc_count; | |
3568 | for (; rel < relend; rel++) | |
3569 | { | |
3570 | unsigned int r_type; | |
3571 | reloc_howto_type *howto; | |
3572 | unsigned int r_symndx; | |
3573 | struct elf32_hppa_link_hash_entry *h; | |
3574 | Elf_Internal_Sym *sym; | |
3575 | asection *sym_sec; | |
3576 | bfd_vma relocation; | |
3577 | bfd_reloc_status_type r; | |
3578 | const char *sym_name; | |
74d1c347 | 3579 | boolean plabel; |
30667bf3 AM |
3580 | |
3581 | r_type = ELF32_R_TYPE (rel->r_info); | |
3582 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3583 | { | |
3584 | bfd_set_error (bfd_error_bad_value); | |
3585 | return false; | |
3586 | } | |
3587 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3588 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3589 | continue; | |
3590 | ||
3591 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3592 | ||
3593 | if (info->relocateable) | |
3594 | { | |
3ac8354b | 3595 | /* This is a relocatable link. We don't have to change |
30667bf3 AM |
3596 | anything, unless the reloc is against a section symbol, |
3597 | in which case we have to adjust according to where the | |
3598 | section symbol winds up in the output section. */ | |
3599 | if (r_symndx < symtab_hdr->sh_info) | |
3600 | { | |
3601 | sym = local_syms + r_symndx; | |
3602 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3603 | { | |
3604 | sym_sec = local_sections[r_symndx]; | |
3605 | rel->r_addend += sym_sec->output_offset; | |
3606 | } | |
3607 | } | |
3608 | continue; | |
3609 | } | |
3610 | ||
3611 | /* This is a final link. */ | |
3612 | h = NULL; | |
3613 | sym = NULL; | |
3614 | sym_sec = NULL; | |
3615 | if (r_symndx < symtab_hdr->sh_info) | |
3616 | { | |
3617 | /* This is a local symbol, h defaults to NULL. */ | |
3618 | sym = local_syms + r_symndx; | |
3619 | sym_sec = local_sections[r_symndx]; | |
3620 | relocation = ((ELF_ST_TYPE (sym->st_info) == STT_SECTION | |
3621 | ? 0 : sym->st_value) | |
3622 | + sym_sec->output_offset | |
3623 | + sym_sec->output_section->vma); | |
3624 | } | |
3625 | else | |
3626 | { | |
3627 | int indx; | |
3628 | ||
3629 | /* It's a global; Find its entry in the link hash. */ | |
3630 | indx = r_symndx - symtab_hdr->sh_info; | |
3631 | h = ((struct elf32_hppa_link_hash_entry *) | |
3632 | elf_sym_hashes (input_bfd)[indx]); | |
3633 | while (h->elf.root.type == bfd_link_hash_indirect | |
3634 | || h->elf.root.type == bfd_link_hash_warning) | |
3635 | h = (struct elf32_hppa_link_hash_entry *) h->elf.root.u.i.link; | |
3636 | ||
3637 | relocation = 0; | |
3638 | if (h->elf.root.type == bfd_link_hash_defined | |
3639 | || h->elf.root.type == bfd_link_hash_defweak) | |
3640 | { | |
3641 | sym_sec = h->elf.root.u.def.section; | |
3642 | /* If sym_sec->output_section is NULL, then it's a | |
3643 | symbol defined in a shared library. */ | |
3644 | if (sym_sec->output_section != NULL) | |
3645 | relocation = (h->elf.root.u.def.value | |
3646 | + sym_sec->output_offset | |
3647 | + sym_sec->output_section->vma); | |
3648 | } | |
3649 | else if (h->elf.root.type == bfd_link_hash_undefweak) | |
3650 | ; | |
3651 | else if (info->shared && !info->no_undefined | |
49e9d0d3 AM |
3652 | && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
3653 | && h->elf.type != STT_PARISC_MILLI) | |
30667bf3 | 3654 | { |
671bae9c | 3655 | if (info->symbolic && !info->allow_shlib_undefined) |
30667bf3 AM |
3656 | if (!((*info->callbacks->undefined_symbol) |
3657 | (info, h->elf.root.root.string, input_bfd, | |
3658 | input_section, rel->r_offset, false))) | |
3659 | return false; | |
3660 | } | |
3661 | else | |
3662 | { | |
3663 | if (!((*info->callbacks->undefined_symbol) | |
3664 | (info, h->elf.root.root.string, input_bfd, | |
3665 | input_section, rel->r_offset, true))) | |
3666 | return false; | |
3667 | } | |
3668 | } | |
3669 | ||
3670 | /* Do any required modifications to the relocation value, and | |
25f72752 AM |
3671 | determine what types of dynamic info we need to output, if |
3672 | any. */ | |
74d1c347 | 3673 | plabel = 0; |
30667bf3 AM |
3674 | switch (r_type) |
3675 | { | |
3676 | case R_PARISC_DLTIND14F: | |
3677 | case R_PARISC_DLTIND14R: | |
3678 | case R_PARISC_DLTIND21L: | |
ce757d15 AM |
3679 | { |
3680 | bfd_vma off; | |
3681 | boolean do_got = 0; | |
3682 | ||
3683 | /* Relocation is to the entry for this symbol in the | |
3684 | global offset table. */ | |
3685 | if (h != NULL) | |
3686 | { | |
3687 | boolean dyn; | |
3688 | ||
3689 | off = h->elf.got.offset; | |
3690 | dyn = htab->elf.dynamic_sections_created; | |
3691 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf)) | |
3692 | { | |
3693 | /* If we aren't going to call finish_dynamic_symbol, | |
3694 | then we need to handle initialisation of the .got | |
3695 | entry and create needed relocs here. Since the | |
3696 | offset must always be a multiple of 4, we use the | |
3697 | least significant bit to record whether we have | |
3698 | initialised it already. */ | |
3699 | if ((off & 1) != 0) | |
3700 | off &= ~1; | |
3701 | else | |
3702 | { | |
3703 | h->elf.got.offset |= 1; | |
3704 | do_got = 1; | |
3705 | } | |
3706 | } | |
3707 | } | |
3708 | else | |
3709 | { | |
3710 | /* Local symbol case. */ | |
3711 | if (local_got_offsets == NULL) | |
3712 | abort (); | |
3713 | ||
3714 | off = local_got_offsets[r_symndx]; | |
3715 | ||
3716 | /* The offset must always be a multiple of 4. We use | |
3717 | the least significant bit to record whether we have | |
3718 | already generated the necessary reloc. */ | |
3719 | if ((off & 1) != 0) | |
3720 | off &= ~1; | |
3721 | else | |
3722 | { | |
3723 | local_got_offsets[r_symndx] |= 1; | |
3724 | do_got = 1; | |
3725 | } | |
3726 | } | |
68fb2e56 | 3727 | |
ce757d15 AM |
3728 | if (do_got) |
3729 | { | |
3730 | if (info->shared) | |
3731 | { | |
3732 | /* Output a dynamic relocation for this GOT entry. | |
3733 | In this case it is relative to the base of the | |
3734 | object because the symbol index is zero. */ | |
3735 | Elf_Internal_Rela outrel; | |
3736 | asection *srelgot = htab->srelgot; | |
3737 | Elf32_External_Rela *loc; | |
3738 | ||
3739 | outrel.r_offset = (off | |
3740 | + htab->sgot->output_offset | |
3741 | + htab->sgot->output_section->vma); | |
3742 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); | |
3743 | outrel.r_addend = relocation; | |
3744 | loc = (Elf32_External_Rela *) srelgot->contents; | |
3745 | loc += srelgot->reloc_count++; | |
3746 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3747 | } | |
3748 | else | |
30667bf3 | 3749 | bfd_put_32 (output_bfd, relocation, |
83c81bfe | 3750 | htab->sgot->contents + off); |
ce757d15 | 3751 | } |
30667bf3 | 3752 | |
ce757d15 AM |
3753 | if (off >= (bfd_vma) -2) |
3754 | abort (); | |
30667bf3 | 3755 | |
ce757d15 AM |
3756 | /* Add the base of the GOT to the relocation value. */ |
3757 | relocation = (off | |
3758 | + htab->sgot->output_offset | |
3759 | + htab->sgot->output_section->vma); | |
3760 | } | |
30667bf3 | 3761 | break; |
252b5132 | 3762 | |
c46b7515 AM |
3763 | case R_PARISC_SEGREL32: |
3764 | /* If this is the first SEGREL relocation, then initialize | |
3765 | the segment base values. */ | |
83c81bfe AM |
3766 | if (htab->text_segment_base == (bfd_vma) -1) |
3767 | bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); | |
c46b7515 AM |
3768 | break; |
3769 | ||
30667bf3 AM |
3770 | case R_PARISC_PLABEL14R: |
3771 | case R_PARISC_PLABEL21L: | |
3772 | case R_PARISC_PLABEL32: | |
ebe50bae | 3773 | if (htab->elf.dynamic_sections_created) |
252b5132 | 3774 | { |
ce757d15 AM |
3775 | bfd_vma off; |
3776 | boolean do_plt = 0; | |
3777 | ||
74d1c347 AM |
3778 | /* If we have a global symbol with a PLT slot, then |
3779 | redirect this relocation to it. */ | |
3780 | if (h != NULL) | |
3781 | { | |
3782 | off = h->elf.plt.offset; | |
4dc86686 | 3783 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, &h->elf)) |
8dea1268 AM |
3784 | { |
3785 | /* In a non-shared link, adjust_dynamic_symbols | |
3786 | isn't called for symbols forced local. We | |
dc810e39 | 3787 | need to write out the plt entry here. */ |
8dea1268 AM |
3788 | if ((off & 1) != 0) |
3789 | off &= ~1; | |
3790 | else | |
3791 | { | |
8dea1268 | 3792 | h->elf.plt.offset |= 1; |
ce757d15 | 3793 | do_plt = 1; |
8dea1268 AM |
3794 | } |
3795 | } | |
74d1c347 AM |
3796 | } |
3797 | else | |
3798 | { | |
68fb2e56 AM |
3799 | bfd_vma *local_plt_offsets; |
3800 | ||
3801 | if (local_got_offsets == NULL) | |
3802 | abort (); | |
74d1c347 | 3803 | |
68fb2e56 AM |
3804 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3805 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3806 | |
3807 | /* As for the local .got entry case, we use the last | |
3808 | bit to record whether we've already initialised | |
3809 | this local .plt entry. */ | |
3810 | if ((off & 1) != 0) | |
3811 | off &= ~1; | |
ce757d15 AM |
3812 | else |
3813 | { | |
3814 | local_plt_offsets[r_symndx] |= 1; | |
3815 | do_plt = 1; | |
3816 | } | |
3817 | } | |
3818 | ||
3819 | if (do_plt) | |
3820 | { | |
3821 | if (info->shared) | |
3822 | { | |
3823 | /* Output a dynamic IPLT relocation for this | |
3824 | PLT entry. */ | |
3825 | Elf_Internal_Rela outrel; | |
3826 | asection *srelplt = htab->srelplt; | |
3827 | Elf32_External_Rela *loc; | |
3828 | ||
3829 | outrel.r_offset = (off | |
3830 | + htab->splt->output_offset | |
3831 | + htab->splt->output_section->vma); | |
3832 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3833 | outrel.r_addend = relocation; | |
3834 | loc = (Elf32_External_Rela *) srelplt->contents; | |
3835 | loc += srelplt->reloc_count++; | |
3836 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3837 | } | |
74d1c347 AM |
3838 | else |
3839 | { | |
3840 | bfd_put_32 (output_bfd, | |
3841 | relocation, | |
83c81bfe | 3842 | htab->splt->contents + off); |
74d1c347 | 3843 | bfd_put_32 (output_bfd, |
83c81bfe AM |
3844 | elf_gp (htab->splt->output_section->owner), |
3845 | htab->splt->contents + off + 4); | |
74d1c347 AM |
3846 | } |
3847 | } | |
3848 | ||
68fb2e56 | 3849 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3850 | abort (); |
74d1c347 AM |
3851 | |
3852 | /* PLABELs contain function pointers. Relocation is to | |
3853 | the entry for the function in the .plt. The magic +2 | |
3854 | offset signals to $$dyncall that the function pointer | |
3855 | is in the .plt and thus has a gp pointer too. | |
3856 | Exception: Undefined PLABELs should have a value of | |
3857 | zero. */ | |
3858 | if (h == NULL | |
3859 | || (h->elf.root.type != bfd_link_hash_undefweak | |
3860 | && h->elf.root.type != bfd_link_hash_undefined)) | |
3861 | { | |
3862 | relocation = (off | |
83c81bfe AM |
3863 | + htab->splt->output_offset |
3864 | + htab->splt->output_section->vma | |
74d1c347 AM |
3865 | + 2); |
3866 | } | |
3867 | plabel = 1; | |
30667bf3 AM |
3868 | } |
3869 | /* Fall through and possibly emit a dynamic relocation. */ | |
3870 | ||
3871 | case R_PARISC_DIR17F: | |
3872 | case R_PARISC_DIR17R: | |
47d89dba | 3873 | case R_PARISC_DIR14F: |
30667bf3 AM |
3874 | case R_PARISC_DIR14R: |
3875 | case R_PARISC_DIR21L: | |
3876 | case R_PARISC_DPREL14F: | |
3877 | case R_PARISC_DPREL14R: | |
3878 | case R_PARISC_DPREL21L: | |
3879 | case R_PARISC_DIR32: | |
3880 | /* The reloc types handled here and this conditional | |
56882138 AM |
3881 | expression must match the code in ..check_relocs and |
3882 | ..discard_relocs. ie. We need exactly the same condition | |
3883 | as in ..check_relocs, with some extra conditions (dynindx | |
3884 | test in this case) to cater for relocs removed by | |
3885 | ..discard_relocs. If you squint, the non-shared test | |
3886 | here does indeed match the one in ..check_relocs, the | |
3887 | difference being that here we test DEF_DYNAMIC as well as | |
3888 | !DEF_REGULAR. All common syms end up with !DEF_REGULAR, | |
3889 | which is why we can't use just that test here. | |
3890 | Conversely, DEF_DYNAMIC can't be used in check_relocs as | |
3891 | there all files have not been loaded. */ | |
446f2863 AM |
3892 | if ((info->shared |
3893 | && (input_section->flags & SEC_ALLOC) != 0 | |
3894 | && (IS_ABSOLUTE_RELOC (r_type) | |
3895 | || (h != NULL | |
3896 | && h->elf.dynindx != -1 | |
3897 | && (!info->symbolic | |
3898 | || (h->elf.elf_link_hash_flags | |
3899 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
3900 | || (!info->shared | |
3901 | && (input_section->flags & SEC_ALLOC) != 0 | |
3902 | && h != NULL | |
3903 | && h->elf.dynindx != -1 | |
3904 | && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
56882138 AM |
3905 | && (((h->elf.elf_link_hash_flags |
3906 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
3907 | && (h->elf.elf_link_hash_flags | |
3908 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
446f2863 AM |
3909 | || h->elf.root.type == bfd_link_hash_undefweak |
3910 | || h->elf.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
3911 | { |
3912 | Elf_Internal_Rela outrel; | |
3913 | boolean skip; | |
98ceb8ce AM |
3914 | asection *sreloc; |
3915 | Elf32_External_Rela *loc; | |
252b5132 | 3916 | |
30667bf3 AM |
3917 | /* When generating a shared object, these relocations |
3918 | are copied into the output file to be resolved at run | |
3919 | time. */ | |
252b5132 | 3920 | |
30667bf3 AM |
3921 | outrel.r_offset = rel->r_offset; |
3922 | outrel.r_addend = rel->r_addend; | |
3923 | skip = false; | |
3924 | if (elf_section_data (input_section)->stab_info != NULL) | |
edd21aca | 3925 | { |
ce757d15 AM |
3926 | bfd_vma off; |
3927 | ||
30667bf3 | 3928 | off = (_bfd_stab_section_offset |
ebe50bae | 3929 | (output_bfd, &htab->elf.stab_info, |
30667bf3 AM |
3930 | input_section, |
3931 | &elf_section_data (input_section)->stab_info, | |
3932 | rel->r_offset)); | |
3933 | if (off == (bfd_vma) -1) | |
3934 | skip = true; | |
3935 | outrel.r_offset = off; | |
edd21aca | 3936 | } |
252b5132 | 3937 | |
30667bf3 AM |
3938 | outrel.r_offset += (input_section->output_offset |
3939 | + input_section->output_section->vma); | |
3940 | ||
3941 | if (skip) | |
252b5132 | 3942 | { |
30667bf3 | 3943 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 3944 | } |
74d1c347 AM |
3945 | else if (h != NULL |
3946 | && h->elf.dynindx != -1 | |
3947 | && (plabel | |
446f2863 AM |
3948 | || !IS_ABSOLUTE_RELOC (r_type) |
3949 | || !info->shared | |
74d1c347 | 3950 | || !info->symbolic |
30667bf3 AM |
3951 | || (h->elf.elf_link_hash_flags |
3952 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
252b5132 | 3953 | { |
30667bf3 AM |
3954 | outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type); |
3955 | } | |
3956 | else /* It's a local symbol, or one marked to become local. */ | |
3957 | { | |
3958 | int indx = 0; | |
edd21aca | 3959 | |
30667bf3 AM |
3960 | /* Add the absolute offset of the symbol. */ |
3961 | outrel.r_addend += relocation; | |
edd21aca | 3962 | |
74d1c347 AM |
3963 | /* Global plabels need to be processed by the |
3964 | dynamic linker so that functions have at most one | |
3965 | fptr. For this reason, we need to differentiate | |
3966 | between global and local plabels, which we do by | |
3967 | providing the function symbol for a global plabel | |
3968 | reloc, and no symbol for local plabels. */ | |
3969 | if (! plabel | |
3970 | && sym_sec != NULL | |
30667bf3 AM |
3971 | && sym_sec->output_section != NULL |
3972 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 3973 | { |
30667bf3 AM |
3974 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
3975 | /* We are turning this relocation into one | |
3976 | against a section symbol, so subtract out the | |
3977 | output section's address but not the offset | |
3978 | of the input section in the output section. */ | |
3979 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 3980 | } |
252b5132 | 3981 | |
30667bf3 AM |
3982 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
3983 | } | |
68fb2e56 AM |
3984 | #if 0 |
3985 | /* EH info can cause unaligned DIR32 relocs. | |
3986 | Tweak the reloc type for the dynamic linker. */ | |
3987 | if (r_type == R_PARISC_DIR32 && (outrel.r_offset & 3) != 0) | |
3988 | outrel.r_info = ELF32_R_INFO (ELF32_R_SYM (outrel.r_info), | |
3989 | R_PARISC_DIR32U); | |
3990 | #endif | |
98ceb8ce AM |
3991 | sreloc = elf_section_data (input_section)->sreloc; |
3992 | if (sreloc == NULL) | |
3993 | abort (); | |
3994 | ||
3ac8354b AM |
3995 | loc = (Elf32_External_Rela *) sreloc->contents; |
3996 | loc += sreloc->reloc_count++; | |
98ceb8ce | 3997 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
30667bf3 AM |
3998 | } |
3999 | break; | |
edd21aca | 4000 | |
30667bf3 AM |
4001 | default: |
4002 | break; | |
4003 | } | |
252b5132 | 4004 | |
30667bf3 | 4005 | r = final_link_relocate (input_section, contents, rel, relocation, |
83c81bfe | 4006 | htab, sym_sec, h); |
252b5132 | 4007 | |
30667bf3 AM |
4008 | if (r == bfd_reloc_ok) |
4009 | continue; | |
252b5132 | 4010 | |
30667bf3 AM |
4011 | if (h != NULL) |
4012 | sym_name = h->elf.root.root.string; | |
4013 | else | |
4014 | { | |
4015 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
4016 | symtab_hdr->sh_link, | |
4017 | sym->st_name); | |
4018 | if (sym_name == NULL) | |
4019 | return false; | |
4020 | if (*sym_name == '\0') | |
4021 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
4022 | } | |
edd21aca | 4023 | |
30667bf3 | 4024 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 4025 | |
30667bf3 AM |
4026 | if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported) |
4027 | { | |
4028 | (*_bfd_error_handler) | |
4029 | (_("%s(%s+0x%lx): cannot handle %s for %s"), | |
8f615d07 | 4030 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
4031 | input_section->name, |
4032 | (long) rel->r_offset, | |
4033 | howto->name, | |
4034 | sym_name); | |
8f615d07 AM |
4035 | bfd_set_error (bfd_error_bad_value); |
4036 | return false; | |
30667bf3 AM |
4037 | } |
4038 | else | |
4039 | { | |
4040 | if (!((*info->callbacks->reloc_overflow) | |
4041 | (info, sym_name, howto->name, (bfd_vma) 0, | |
4042 | input_bfd, input_section, rel->r_offset))) | |
4043 | return false; | |
4044 | } | |
4045 | } | |
edd21aca | 4046 | |
30667bf3 AM |
4047 | return true; |
4048 | } | |
252b5132 | 4049 | |
c46b7515 AM |
4050 | /* Comparison function for qsort to sort unwind section during a |
4051 | final link. */ | |
4052 | ||
4053 | static int | |
4054 | hppa_unwind_entry_compare (a, b) | |
4055 | const PTR a; | |
4056 | const PTR b; | |
4057 | { | |
4058 | const bfd_byte *ap, *bp; | |
4059 | unsigned long av, bv; | |
4060 | ||
4061 | ap = (const bfd_byte *) a; | |
4062 | av = (unsigned long) ap[0] << 24; | |
4063 | av |= (unsigned long) ap[1] << 16; | |
4064 | av |= (unsigned long) ap[2] << 8; | |
4065 | av |= (unsigned long) ap[3]; | |
4066 | ||
4067 | bp = (const bfd_byte *) b; | |
4068 | bv = (unsigned long) bp[0] << 24; | |
4069 | bv |= (unsigned long) bp[1] << 16; | |
4070 | bv |= (unsigned long) bp[2] << 8; | |
4071 | bv |= (unsigned long) bp[3]; | |
4072 | ||
4073 | return av < bv ? -1 : av > bv ? 1 : 0; | |
4074 | } | |
4075 | ||
30667bf3 AM |
4076 | /* Finish up dynamic symbol handling. We set the contents of various |
4077 | dynamic sections here. */ | |
252b5132 | 4078 | |
30667bf3 AM |
4079 | static boolean |
4080 | elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym) | |
4081 | bfd *output_bfd; | |
4082 | struct bfd_link_info *info; | |
4083 | struct elf_link_hash_entry *h; | |
4084 | Elf_Internal_Sym *sym; | |
4085 | { | |
83c81bfe | 4086 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 4087 | |
83c81bfe | 4088 | htab = hppa_link_hash_table (info); |
30667bf3 | 4089 | |
30667bf3 AM |
4090 | if (h->plt.offset != (bfd_vma) -1) |
4091 | { | |
4092 | bfd_vma value; | |
30667bf3 | 4093 | |
8dea1268 AM |
4094 | if (h->plt.offset & 1) |
4095 | abort (); | |
4096 | ||
30667bf3 AM |
4097 | /* This symbol has an entry in the procedure linkage table. Set |
4098 | it up. | |
4099 | ||
4100 | The format of a plt entry is | |
74d1c347 AM |
4101 | <funcaddr> |
4102 | <__gp> | |
47d89dba | 4103 | */ |
30667bf3 AM |
4104 | value = 0; |
4105 | if (h->root.type == bfd_link_hash_defined | |
4106 | || h->root.type == bfd_link_hash_defweak) | |
4107 | { | |
4108 | value = h->root.u.def.value; | |
4109 | if (h->root.u.def.section->output_section != NULL) | |
4110 | value += (h->root.u.def.section->output_offset | |
4111 | + h->root.u.def.section->output_section->vma); | |
252b5132 | 4112 | } |
edd21aca | 4113 | |
74d1c347 | 4114 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call) |
30667bf3 | 4115 | { |
47d89dba | 4116 | Elf_Internal_Rela rel; |
3ac8354b | 4117 | Elf32_External_Rela *loc; |
47d89dba | 4118 | |
30667bf3 AM |
4119 | /* Create a dynamic IPLT relocation for this entry. */ |
4120 | rel.r_offset = (h->plt.offset | |
83c81bfe AM |
4121 | + htab->splt->output_offset |
4122 | + htab->splt->output_section->vma); | |
ce757d15 | 4123 | if (h->dynindx != -1) |
74d1c347 AM |
4124 | { |
4125 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT); | |
4126 | rel.r_addend = 0; | |
4127 | } | |
4128 | else | |
4129 | { | |
4130 | /* This symbol has been marked to become local, and is | |
4131 | used by a plabel so must be kept in the .plt. */ | |
4132 | rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
4133 | rel.r_addend = value; | |
4134 | } | |
30667bf3 | 4135 | |
3ac8354b AM |
4136 | loc = (Elf32_External_Rela *) htab->srelplt->contents; |
4137 | loc += htab->srelplt->reloc_count++; | |
83c81bfe | 4138 | bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, |
3ac8354b | 4139 | &rel, loc); |
30667bf3 | 4140 | } |
ce757d15 | 4141 | else |
47d89dba | 4142 | { |
ce757d15 AM |
4143 | bfd_put_32 (htab->splt->owner, |
4144 | value, | |
4145 | htab->splt->contents + h->plt.offset); | |
4146 | bfd_put_32 (htab->splt->owner, | |
4147 | elf_gp (htab->splt->output_section->owner), | |
4148 | htab->splt->contents + h->plt.offset + 4); | |
47d89dba AM |
4149 | } |
4150 | ||
30667bf3 AM |
4151 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
4152 | { | |
4153 | /* Mark the symbol as undefined, rather than as defined in | |
4154 | the .plt section. Leave the value alone. */ | |
4155 | sym->st_shndx = SHN_UNDEF; | |
4156 | } | |
4157 | } | |
edd21aca | 4158 | |
30667bf3 AM |
4159 | if (h->got.offset != (bfd_vma) -1) |
4160 | { | |
4161 | Elf_Internal_Rela rel; | |
3ac8354b | 4162 | Elf32_External_Rela *loc; |
30667bf3 AM |
4163 | |
4164 | /* This symbol has an entry in the global offset table. Set it | |
4165 | up. */ | |
4166 | ||
4167 | rel.r_offset = ((h->got.offset &~ (bfd_vma) 1) | |
83c81bfe AM |
4168 | + htab->sgot->output_offset |
4169 | + htab->sgot->output_section->vma); | |
30667bf3 | 4170 | |
4dc86686 AM |
4171 | /* If this is a -Bsymbolic link and the symbol is defined |
4172 | locally or was forced to be local because of a version file, | |
4173 | we just want to emit a RELATIVE reloc. The entry in the | |
4174 | global offset table will already have been initialized in the | |
4175 | relocate_section function. */ | |
4176 | if (info->shared | |
4177 | && (info->symbolic || h->dynindx == -1) | |
4178 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
30667bf3 | 4179 | { |
74d1c347 | 4180 | rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
4181 | rel.r_addend = (h->root.u.def.value |
4182 | + h->root.u.def.section->output_offset | |
4183 | + h->root.u.def.section->output_section->vma); | |
4184 | } | |
4185 | else | |
4186 | { | |
49e9d0d3 AM |
4187 | if ((h->got.offset & 1) != 0) |
4188 | abort (); | |
30667bf3 | 4189 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
83c81bfe | 4190 | htab->sgot->contents + h->got.offset); |
30667bf3 AM |
4191 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32); |
4192 | rel.r_addend = 0; | |
4193 | } | |
edd21aca | 4194 | |
3ac8354b AM |
4195 | loc = (Elf32_External_Rela *) htab->srelgot->contents; |
4196 | loc += htab->srelgot->reloc_count++; | |
4197 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 | 4198 | } |
edd21aca | 4199 | |
30667bf3 AM |
4200 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
4201 | { | |
4202 | asection *s; | |
4203 | Elf_Internal_Rela rel; | |
3ac8354b | 4204 | Elf32_External_Rela *loc; |
30667bf3 AM |
4205 | |
4206 | /* This symbol needs a copy reloc. Set it up. */ | |
4207 | ||
49e9d0d3 AM |
4208 | if (! (h->dynindx != -1 |
4209 | && (h->root.type == bfd_link_hash_defined | |
4210 | || h->root.type == bfd_link_hash_defweak))) | |
4211 | abort (); | |
30667bf3 | 4212 | |
83c81bfe | 4213 | s = htab->srelbss; |
30667bf3 AM |
4214 | |
4215 | rel.r_offset = (h->root.u.def.value | |
4216 | + h->root.u.def.section->output_offset | |
4217 | + h->root.u.def.section->output_section->vma); | |
4218 | rel.r_addend = 0; | |
4219 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY); | |
3ac8354b AM |
4220 | loc = (Elf32_External_Rela *) s->contents + s->reloc_count++; |
4221 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 AM |
4222 | } |
4223 | ||
4224 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
4225 | if (h->root.root.string[0] == '_' | |
4226 | && (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4227 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)) | |
4228 | { | |
4229 | sym->st_shndx = SHN_ABS; | |
4230 | } | |
4231 | ||
4232 | return true; | |
4233 | } | |
4234 | ||
98ceb8ce AM |
4235 | /* Used to decide how to sort relocs in an optimal manner for the |
4236 | dynamic linker, before writing them out. */ | |
4237 | ||
4238 | static enum elf_reloc_type_class | |
4239 | elf32_hppa_reloc_type_class (rela) | |
4240 | const Elf_Internal_Rela *rela; | |
4241 | { | |
4242 | if (ELF32_R_SYM (rela->r_info) == 0) | |
4243 | return reloc_class_relative; | |
4244 | ||
4245 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4246 | { | |
4247 | case R_PARISC_IPLT: | |
4248 | return reloc_class_plt; | |
4249 | case R_PARISC_COPY: | |
4250 | return reloc_class_copy; | |
4251 | default: | |
4252 | return reloc_class_normal; | |
4253 | } | |
4254 | } | |
4255 | ||
30667bf3 AM |
4256 | /* Finish up the dynamic sections. */ |
4257 | ||
4258 | static boolean | |
4259 | elf32_hppa_finish_dynamic_sections (output_bfd, info) | |
4260 | bfd *output_bfd; | |
4261 | struct bfd_link_info *info; | |
4262 | { | |
4263 | bfd *dynobj; | |
83c81bfe | 4264 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
4265 | asection *sdyn; |
4266 | ||
83c81bfe | 4267 | htab = hppa_link_hash_table (info); |
ebe50bae | 4268 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
4269 | |
4270 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4271 | ||
ebe50bae | 4272 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
4273 | { |
4274 | Elf32_External_Dyn *dyncon, *dynconend; | |
4275 | ||
49e9d0d3 AM |
4276 | if (sdyn == NULL) |
4277 | abort (); | |
30667bf3 AM |
4278 | |
4279 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
4280 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4281 | for (; dyncon < dynconend; dyncon++) | |
edd21aca | 4282 | { |
30667bf3 AM |
4283 | Elf_Internal_Dyn dyn; |
4284 | asection *s; | |
4285 | ||
4286 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4287 | ||
4288 | switch (dyn.d_tag) | |
4289 | { | |
4290 | default: | |
3ac8354b | 4291 | continue; |
30667bf3 AM |
4292 | |
4293 | case DT_PLTGOT: | |
4294 | /* Use PLTGOT to set the GOT register. */ | |
4295 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
30667bf3 AM |
4296 | break; |
4297 | ||
4298 | case DT_JMPREL: | |
83c81bfe | 4299 | s = htab->srelplt; |
30667bf3 | 4300 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
30667bf3 AM |
4301 | break; |
4302 | ||
4303 | case DT_PLTRELSZ: | |
83c81bfe | 4304 | s = htab->srelplt; |
30667bf3 AM |
4305 | if (s->_cooked_size != 0) |
4306 | dyn.d_un.d_val = s->_cooked_size; | |
4307 | else | |
4308 | dyn.d_un.d_val = s->_raw_size; | |
30667bf3 | 4309 | break; |
4e12ff7f AM |
4310 | |
4311 | case DT_RELASZ: | |
4312 | /* Don't count procedure linkage table relocs in the | |
4313 | overall reloc count. */ | |
4314 | if (htab->srelplt != NULL) | |
4315 | { | |
4316 | s = htab->srelplt->output_section; | |
4317 | if (s->_cooked_size != 0) | |
4318 | dyn.d_un.d_val -= s->_cooked_size; | |
4319 | else | |
4320 | dyn.d_un.d_val -= s->_raw_size; | |
4321 | } | |
4322 | break; | |
30667bf3 | 4323 | } |
3ac8354b AM |
4324 | |
4325 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
edd21aca | 4326 | } |
252b5132 | 4327 | } |
edd21aca | 4328 | |
83c81bfe | 4329 | if (htab->sgot != NULL && htab->sgot->_raw_size != 0) |
30667bf3 | 4330 | { |
74d1c347 AM |
4331 | /* Fill in the first entry in the global offset table. |
4332 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 AM |
4333 | bfd_put_32 (output_bfd, |
4334 | (sdyn != NULL | |
4335 | ? sdyn->output_section->vma + sdyn->output_offset | |
4336 | : (bfd_vma) 0), | |
83c81bfe | 4337 | htab->sgot->contents); |
30667bf3 | 4338 | |
74d1c347 | 4339 | /* The second entry is reserved for use by the dynamic linker. */ |
83c81bfe | 4340 | memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4341 | |
30667bf3 | 4342 | /* Set .got entry size. */ |
83c81bfe | 4343 | elf_section_data (htab->sgot->output_section) |
74d1c347 | 4344 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; |
30667bf3 AM |
4345 | } |
4346 | ||
83c81bfe | 4347 | if (htab->splt != NULL && htab->splt->_raw_size != 0) |
47d89dba AM |
4348 | { |
4349 | /* Set plt entry size. */ | |
83c81bfe | 4350 | elf_section_data (htab->splt->output_section) |
47d89dba AM |
4351 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; |
4352 | ||
83c81bfe | 4353 | if (htab->need_plt_stub) |
47d89dba AM |
4354 | { |
4355 | /* Set up the .plt stub. */ | |
83c81bfe AM |
4356 | memcpy (htab->splt->contents |
4357 | + htab->splt->_raw_size - sizeof (plt_stub), | |
47d89dba AM |
4358 | plt_stub, sizeof (plt_stub)); |
4359 | ||
83c81bfe AM |
4360 | if ((htab->splt->output_offset |
4361 | + htab->splt->output_section->vma | |
4362 | + htab->splt->_raw_size) | |
4363 | != (htab->sgot->output_offset | |
4364 | + htab->sgot->output_section->vma)) | |
47d89dba AM |
4365 | { |
4366 | (*_bfd_error_handler) | |
4367 | (_(".got section not immediately after .plt section")); | |
4368 | return false; | |
4369 | } | |
4370 | } | |
4371 | } | |
30667bf3 | 4372 | |
252b5132 | 4373 | return true; |
30667bf3 | 4374 | } |
252b5132 | 4375 | |
d952f17a AM |
4376 | /* Tweak the OSABI field of the elf header. */ |
4377 | ||
4378 | static void | |
4379 | elf32_hppa_post_process_headers (abfd, link_info) | |
4380 | bfd *abfd; | |
4381 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
4382 | { | |
4383 | Elf_Internal_Ehdr * i_ehdrp; | |
4384 | ||
4385 | i_ehdrp = elf_elfheader (abfd); | |
4386 | ||
4387 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
4388 | { | |
4389 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
4390 | } | |
4391 | else | |
4392 | { | |
4393 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; | |
4394 | } | |
4395 | } | |
4396 | ||
30667bf3 AM |
4397 | /* Called when writing out an object file to decide the type of a |
4398 | symbol. */ | |
4399 | static int | |
4400 | elf32_hppa_elf_get_symbol_type (elf_sym, type) | |
4401 | Elf_Internal_Sym *elf_sym; | |
4402 | int type; | |
4403 | { | |
4404 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4405 | return STT_PARISC_MILLI; | |
4406 | else | |
4407 | return type; | |
252b5132 RH |
4408 | } |
4409 | ||
4410 | /* Misc BFD support code. */ | |
30667bf3 AM |
4411 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4412 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4413 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4414 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4415 | |
252b5132 | 4416 | /* Stuff for the BFD linker. */ |
c46b7515 | 4417 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 AM |
4418 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
4419 | #define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook | |
4420 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol | |
ebe50bae | 4421 | #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol |
30667bf3 AM |
4422 | #define elf_backend_check_relocs elf32_hppa_check_relocs |
4423 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4424 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4425 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4426 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4427 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4428 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4429 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4430 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4431 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
4432 | #define elf_backend_object_p elf32_hppa_object_p | |
4433 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d952f17a | 4434 | #define elf_backend_post_process_headers elf32_hppa_post_process_headers |
30667bf3 | 4435 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
98ceb8ce | 4436 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
30667bf3 AM |
4437 | |
4438 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4439 | #define elf_backend_can_refcount 1 |
30667bf3 AM |
4440 | #define elf_backend_plt_alignment 2 |
4441 | #define elf_backend_want_got_plt 0 | |
4442 | #define elf_backend_plt_readonly 0 | |
4443 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4444 | #define elf_backend_got_header_size 8 |
252b5132 RH |
4445 | |
4446 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4447 | #define TARGET_BIG_NAME "elf32-hppa" | |
4448 | #define ELF_ARCH bfd_arch_hppa | |
4449 | #define ELF_MACHINE_CODE EM_PARISC | |
4450 | #define ELF_MAXPAGESIZE 0x1000 | |
4451 | ||
4452 | #include "elf32-target.h" | |
d952f17a AM |
4453 | |
4454 | #undef TARGET_BIG_SYM | |
4455 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec | |
4456 | #undef TARGET_BIG_NAME | |
4457 | #define TARGET_BIG_NAME "elf32-hppa-linux" | |
4458 | ||
4459 | #define INCLUDED_TARGET_FILE 1 | |
4460 | #include "elf32-target.h" |