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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; | |
ec338859 AM |
266 | |
267 | /* Small local sym to section mapping cache. */ | |
268 | struct sym_sec_cache sym_sec; | |
252b5132 RH |
269 | }; |
270 | ||
30667bf3 AM |
271 | /* Various hash macros and functions. */ |
272 | #define hppa_link_hash_table(p) \ | |
edd21aca | 273 | ((struct elf32_hppa_link_hash_table *) ((p)->hash)) |
252b5132 | 274 | |
30667bf3 AM |
275 | #define hppa_stub_hash_lookup(table, string, create, copy) \ |
276 | ((struct elf32_hppa_stub_hash_entry *) \ | |
277 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
278 | ||
279 | static struct bfd_hash_entry *stub_hash_newfunc | |
280 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
edd21aca | 281 | |
30667bf3 | 282 | static struct bfd_hash_entry *hppa_link_hash_newfunc |
edd21aca | 283 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
252b5132 RH |
284 | |
285 | static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create | |
286 | PARAMS ((bfd *)); | |
287 | ||
30667bf3 AM |
288 | /* Stub handling functions. */ |
289 | static char *hppa_stub_name | |
290 | PARAMS ((const asection *, const asection *, | |
291 | const struct elf32_hppa_link_hash_entry *, | |
292 | const Elf_Internal_Rela *)); | |
edd21aca | 293 | |
30667bf3 AM |
294 | static struct elf32_hppa_stub_hash_entry *hppa_get_stub_entry |
295 | PARAMS ((const asection *, const asection *, | |
296 | struct elf32_hppa_link_hash_entry *, | |
25f72752 AM |
297 | const Elf_Internal_Rela *, |
298 | struct elf32_hppa_link_hash_table *)); | |
edd21aca | 299 | |
30667bf3 | 300 | static struct elf32_hppa_stub_hash_entry *hppa_add_stub |
25f72752 | 301 | PARAMS ((const char *, asection *, struct elf32_hppa_link_hash_table *)); |
30667bf3 AM |
302 | |
303 | static enum elf32_hppa_stub_type hppa_type_of_stub | |
304 | PARAMS ((asection *, const Elf_Internal_Rela *, | |
305 | struct elf32_hppa_link_hash_entry *, bfd_vma)); | |
306 | ||
307 | static boolean hppa_build_one_stub | |
308 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
309 | ||
310 | static boolean hppa_size_one_stub | |
311 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
312 | ||
30667bf3 AM |
313 | /* BFD and elf backend functions. */ |
314 | static boolean elf32_hppa_object_p PARAMS ((bfd *)); | |
252b5132 | 315 | |
edd21aca AM |
316 | static boolean elf32_hppa_add_symbol_hook |
317 | PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, | |
318 | const char **, flagword *, asection **, bfd_vma *)); | |
252b5132 | 319 | |
30667bf3 AM |
320 | static boolean elf32_hppa_create_dynamic_sections |
321 | PARAMS ((bfd *, struct bfd_link_info *)); | |
252b5132 | 322 | |
ebe50bae AM |
323 | static void elf32_hppa_copy_indirect_symbol |
324 | PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *)); | |
325 | ||
30667bf3 AM |
326 | static boolean elf32_hppa_check_relocs |
327 | PARAMS ((bfd *, struct bfd_link_info *, | |
328 | asection *, const Elf_Internal_Rela *)); | |
329 | ||
330 | static asection *elf32_hppa_gc_mark_hook | |
331 | PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *, | |
332 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
333 | ||
334 | static boolean elf32_hppa_gc_sweep_hook | |
335 | PARAMS ((bfd *, struct bfd_link_info *, | |
336 | asection *, const Elf_Internal_Rela *)); | |
337 | ||
74d1c347 AM |
338 | static void elf32_hppa_hide_symbol |
339 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
340 | ||
30667bf3 AM |
341 | static boolean elf32_hppa_adjust_dynamic_symbol |
342 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
343 | ||
a8d02d66 AM |
344 | static boolean mark_PIC_calls |
345 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
346 | ||
347 | static boolean allocate_PIC_calls | |
30667bf3 AM |
348 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
349 | ||
98ceb8ce AM |
350 | static boolean allocate_dynrelocs |
351 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
352 | ||
353 | static boolean readonly_dynrelocs | |
30667bf3 | 354 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
30667bf3 | 355 | |
d5c73c2f AM |
356 | static boolean clobber_millicode_symbols |
357 | PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *)); | |
358 | ||
30667bf3 AM |
359 | static boolean elf32_hppa_size_dynamic_sections |
360 | PARAMS ((bfd *, struct bfd_link_info *)); | |
361 | ||
c46b7515 AM |
362 | static boolean elf32_hppa_final_link |
363 | PARAMS ((bfd *, struct bfd_link_info *)); | |
364 | ||
365 | static void hppa_record_segment_addr | |
366 | PARAMS ((bfd *, asection *, PTR)); | |
367 | ||
30667bf3 AM |
368 | static bfd_reloc_status_type final_link_relocate |
369 | PARAMS ((asection *, bfd_byte *, const Elf_Internal_Rela *, | |
25f72752 | 370 | bfd_vma, struct elf32_hppa_link_hash_table *, asection *, |
30667bf3 AM |
371 | struct elf32_hppa_link_hash_entry *)); |
372 | ||
373 | static boolean elf32_hppa_relocate_section | |
374 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, | |
375 | bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
376 | ||
c46b7515 AM |
377 | static int hppa_unwind_entry_compare |
378 | PARAMS ((const PTR, const PTR)); | |
379 | ||
30667bf3 AM |
380 | static boolean elf32_hppa_finish_dynamic_symbol |
381 | PARAMS ((bfd *, struct bfd_link_info *, | |
382 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
383 | ||
98ceb8ce AM |
384 | static enum elf_reloc_type_class elf32_hppa_reloc_type_class |
385 | PARAMS ((const Elf_Internal_Rela *)); | |
386 | ||
30667bf3 AM |
387 | static boolean elf32_hppa_finish_dynamic_sections |
388 | PARAMS ((bfd *, struct bfd_link_info *)); | |
389 | ||
d952f17a AM |
390 | static void elf32_hppa_post_process_headers |
391 | PARAMS ((bfd *, struct bfd_link_info *)); | |
392 | ||
30667bf3 AM |
393 | static int elf32_hppa_elf_get_symbol_type |
394 | PARAMS ((Elf_Internal_Sym *, int)); | |
252b5132 | 395 | |
252b5132 RH |
396 | /* Assorted hash table functions. */ |
397 | ||
398 | /* Initialize an entry in the stub hash table. */ | |
399 | ||
400 | static struct bfd_hash_entry * | |
30667bf3 | 401 | stub_hash_newfunc (entry, table, string) |
252b5132 RH |
402 | struct bfd_hash_entry *entry; |
403 | struct bfd_hash_table *table; | |
404 | const char *string; | |
405 | { | |
252b5132 RH |
406 | /* Allocate the structure if it has not already been allocated by a |
407 | subclass. */ | |
ebe50bae | 408 | if (entry == NULL) |
30667bf3 | 409 | { |
ebe50bae AM |
410 | entry = bfd_hash_allocate (table, |
411 | sizeof (struct elf32_hppa_stub_hash_entry)); | |
412 | if (entry == NULL) | |
413 | return entry; | |
30667bf3 | 414 | } |
252b5132 RH |
415 | |
416 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
417 | entry = bfd_hash_newfunc (entry, table, string); |
418 | if (entry != NULL) | |
252b5132 | 419 | { |
ebe50bae AM |
420 | struct elf32_hppa_stub_hash_entry *eh; |
421 | ||
252b5132 | 422 | /* Initialize the local fields. */ |
ebe50bae AM |
423 | eh = (struct elf32_hppa_stub_hash_entry *) entry; |
424 | eh->stub_sec = NULL; | |
425 | eh->stub_offset = 0; | |
426 | eh->target_value = 0; | |
427 | eh->target_section = NULL; | |
428 | eh->stub_type = hppa_stub_long_branch; | |
429 | eh->h = NULL; | |
430 | eh->id_sec = NULL; | |
30667bf3 AM |
431 | } |
432 | ||
ebe50bae | 433 | return entry; |
30667bf3 AM |
434 | } |
435 | ||
30667bf3 AM |
436 | /* Initialize an entry in the link hash table. */ |
437 | ||
438 | static struct bfd_hash_entry * | |
439 | hppa_link_hash_newfunc (entry, table, string) | |
440 | struct bfd_hash_entry *entry; | |
441 | struct bfd_hash_table *table; | |
442 | const char *string; | |
443 | { | |
30667bf3 AM |
444 | /* Allocate the structure if it has not already been allocated by a |
445 | subclass. */ | |
ebe50bae | 446 | if (entry == NULL) |
30667bf3 | 447 | { |
ebe50bae AM |
448 | entry = bfd_hash_allocate (table, |
449 | sizeof (struct elf32_hppa_link_hash_entry)); | |
450 | if (entry == NULL) | |
451 | return entry; | |
30667bf3 AM |
452 | } |
453 | ||
454 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
455 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
456 | if (entry != NULL) | |
30667bf3 | 457 | { |
ebe50bae AM |
458 | struct elf32_hppa_link_hash_entry *eh; |
459 | ||
30667bf3 | 460 | /* Initialize the local fields. */ |
ebe50bae AM |
461 | eh = (struct elf32_hppa_link_hash_entry *) entry; |
462 | eh->stub_cache = NULL; | |
463 | eh->dyn_relocs = NULL; | |
464 | eh->maybe_pic_call = 0; | |
465 | eh->pic_call = 0; | |
466 | eh->plabel = 0; | |
252b5132 RH |
467 | } |
468 | ||
ebe50bae | 469 | return entry; |
252b5132 RH |
470 | } |
471 | ||
252b5132 RH |
472 | /* Create the derived linker hash table. The PA ELF port uses the derived |
473 | hash table to keep information specific to the PA ELF linker (without | |
474 | using static variables). */ | |
475 | ||
476 | static struct bfd_link_hash_table * | |
477 | elf32_hppa_link_hash_table_create (abfd) | |
478 | bfd *abfd; | |
479 | { | |
480 | struct elf32_hppa_link_hash_table *ret; | |
dc810e39 | 481 | bfd_size_type amt = sizeof (*ret); |
252b5132 | 482 | |
dc810e39 | 483 | ret = (struct elf32_hppa_link_hash_table *) bfd_alloc (abfd, amt); |
252b5132 RH |
484 | if (ret == NULL) |
485 | return NULL; | |
edd21aca | 486 | |
ebe50bae | 487 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, hppa_link_hash_newfunc)) |
252b5132 RH |
488 | { |
489 | bfd_release (abfd, ret); | |
490 | return NULL; | |
491 | } | |
edd21aca AM |
492 | |
493 | /* Init the stub hash table too. */ | |
30667bf3 | 494 | if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc)) |
edd21aca AM |
495 | return NULL; |
496 | ||
30667bf3 | 497 | ret->stub_bfd = NULL; |
30667bf3 AM |
498 | ret->add_stub_section = NULL; |
499 | ret->layout_sections_again = NULL; | |
25f72752 | 500 | ret->stub_group = NULL; |
30667bf3 AM |
501 | ret->sgot = NULL; |
502 | ret->srelgot = NULL; | |
503 | ret->splt = NULL; | |
504 | ret->srelplt = NULL; | |
505 | ret->sdynbss = NULL; | |
506 | ret->srelbss = NULL; | |
c46b7515 AM |
507 | ret->text_segment_base = (bfd_vma) -1; |
508 | ret->data_segment_base = (bfd_vma) -1; | |
47d89dba AM |
509 | ret->multi_subspace = 0; |
510 | ret->has_12bit_branch = 0; | |
511 | ret->has_17bit_branch = 0; | |
512 | ret->need_plt_stub = 0; | |
ec338859 | 513 | ret->sym_sec.abfd = NULL; |
252b5132 | 514 | |
ebe50bae | 515 | return &ret->elf.root; |
252b5132 RH |
516 | } |
517 | ||
30667bf3 AM |
518 | /* Build a name for an entry in the stub hash table. */ |
519 | ||
edd21aca | 520 | static char * |
30667bf3 | 521 | hppa_stub_name (input_section, sym_sec, hash, rel) |
edd21aca | 522 | const asection *input_section; |
30667bf3 AM |
523 | const asection *sym_sec; |
524 | const struct elf32_hppa_link_hash_entry *hash; | |
525 | const Elf_Internal_Rela *rel; | |
edd21aca AM |
526 | { |
527 | char *stub_name; | |
dc810e39 | 528 | bfd_size_type len; |
edd21aca | 529 | |
30667bf3 AM |
530 | if (hash) |
531 | { | |
532 | len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1; | |
533 | stub_name = bfd_malloc (len); | |
534 | if (stub_name != NULL) | |
535 | { | |
536 | sprintf (stub_name, "%08x_%s+%x", | |
537 | input_section->id & 0xffffffff, | |
538 | hash->elf.root.root.string, | |
539 | (int) rel->r_addend & 0xffffffff); | |
540 | } | |
541 | } | |
542 | else | |
edd21aca | 543 | { |
30667bf3 AM |
544 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
545 | stub_name = bfd_malloc (len); | |
546 | if (stub_name != NULL) | |
547 | { | |
548 | sprintf (stub_name, "%08x_%x:%x+%x", | |
549 | input_section->id & 0xffffffff, | |
550 | sym_sec->id & 0xffffffff, | |
551 | (int) ELF32_R_SYM (rel->r_info) & 0xffffffff, | |
552 | (int) rel->r_addend & 0xffffffff); | |
553 | } | |
edd21aca AM |
554 | } |
555 | return stub_name; | |
556 | } | |
252b5132 | 557 | |
30667bf3 AM |
558 | /* Look up an entry in the stub hash. Stub entries are cached because |
559 | creating the stub name takes a bit of time. */ | |
560 | ||
561 | static struct elf32_hppa_stub_hash_entry * | |
83c81bfe | 562 | hppa_get_stub_entry (input_section, sym_sec, hash, rel, htab) |
30667bf3 AM |
563 | const asection *input_section; |
564 | const asection *sym_sec; | |
565 | struct elf32_hppa_link_hash_entry *hash; | |
566 | const Elf_Internal_Rela *rel; | |
83c81bfe | 567 | struct elf32_hppa_link_hash_table *htab; |
252b5132 | 568 | { |
30667bf3 | 569 | struct elf32_hppa_stub_hash_entry *stub_entry; |
25f72752 AM |
570 | const asection *id_sec; |
571 | ||
572 | /* If this input section is part of a group of sections sharing one | |
573 | stub section, then use the id of the first section in the group. | |
574 | Stub names need to include a section id, as there may well be | |
575 | more than one stub used to reach say, printf, and we need to | |
576 | distinguish between them. */ | |
83c81bfe | 577 | id_sec = htab->stub_group[input_section->id].link_sec; |
edd21aca | 578 | |
30667bf3 AM |
579 | if (hash != NULL && hash->stub_cache != NULL |
580 | && hash->stub_cache->h == hash | |
25f72752 | 581 | && hash->stub_cache->id_sec == id_sec) |
edd21aca | 582 | { |
30667bf3 AM |
583 | stub_entry = hash->stub_cache; |
584 | } | |
585 | else | |
586 | { | |
30667bf3 | 587 | char *stub_name; |
edd21aca | 588 | |
25f72752 | 589 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, rel); |
30667bf3 AM |
590 | if (stub_name == NULL) |
591 | return NULL; | |
edd21aca | 592 | |
83c81bfe | 593 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
25f72752 | 594 | stub_name, false, false); |
30667bf3 AM |
595 | if (stub_entry == NULL) |
596 | { | |
597 | if (hash == NULL || hash->elf.root.type != bfd_link_hash_undefweak) | |
598 | (*_bfd_error_handler) (_("%s(%s+0x%lx): cannot find stub entry %s"), | |
8f615d07 | 599 | bfd_archive_filename (input_section->owner), |
30667bf3 AM |
600 | input_section->name, |
601 | (long) rel->r_offset, | |
602 | stub_name); | |
603 | } | |
604 | else | |
605 | { | |
606 | if (hash != NULL) | |
607 | hash->stub_cache = stub_entry; | |
608 | } | |
609 | ||
610 | free (stub_name); | |
edd21aca | 611 | } |
30667bf3 AM |
612 | |
613 | return stub_entry; | |
614 | } | |
615 | ||
30667bf3 AM |
616 | /* Add a new stub entry to the stub hash. Not all fields of the new |
617 | stub entry are initialised. */ | |
618 | ||
619 | static struct elf32_hppa_stub_hash_entry * | |
83c81bfe | 620 | hppa_add_stub (stub_name, section, htab) |
30667bf3 AM |
621 | const char *stub_name; |
622 | asection *section; | |
83c81bfe | 623 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 624 | { |
25f72752 | 625 | asection *link_sec; |
30667bf3 | 626 | asection *stub_sec; |
30667bf3 | 627 | struct elf32_hppa_stub_hash_entry *stub_entry; |
edd21aca | 628 | |
83c81bfe AM |
629 | link_sec = htab->stub_group[section->id].link_sec; |
630 | stub_sec = htab->stub_group[section->id].stub_sec; | |
30667bf3 | 631 | if (stub_sec == NULL) |
edd21aca | 632 | { |
83c81bfe | 633 | stub_sec = htab->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
634 | if (stub_sec == NULL) |
635 | { | |
dc810e39 | 636 | bfd_size_type len; |
30667bf3 AM |
637 | char *s_name; |
638 | ||
25f72752 | 639 | len = strlen (link_sec->name) + sizeof (STUB_SUFFIX); |
83c81bfe | 640 | s_name = bfd_alloc (htab->stub_bfd, len); |
30667bf3 AM |
641 | if (s_name == NULL) |
642 | return NULL; | |
643 | ||
25f72752 | 644 | strcpy (s_name, link_sec->name); |
30667bf3 | 645 | strcpy (s_name + len - sizeof (STUB_SUFFIX), STUB_SUFFIX); |
83c81bfe | 646 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
647 | if (stub_sec == NULL) |
648 | return NULL; | |
83c81bfe | 649 | htab->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 650 | } |
83c81bfe | 651 | htab->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 652 | } |
252b5132 | 653 | |
30667bf3 | 654 | /* Enter this entry into the linker stub hash table. */ |
83c81bfe | 655 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
30667bf3 AM |
656 | true, false); |
657 | if (stub_entry == NULL) | |
658 | { | |
659 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
8f615d07 | 660 | bfd_archive_filename (section->owner), |
30667bf3 AM |
661 | stub_name); |
662 | return NULL; | |
edd21aca AM |
663 | } |
664 | ||
30667bf3 | 665 | stub_entry->stub_sec = stub_sec; |
30667bf3 | 666 | stub_entry->stub_offset = 0; |
25f72752 | 667 | stub_entry->id_sec = link_sec; |
30667bf3 | 668 | return stub_entry; |
edd21aca AM |
669 | } |
670 | ||
30667bf3 AM |
671 | /* Determine the type of stub needed, if any, for a call. */ |
672 | ||
673 | static enum elf32_hppa_stub_type | |
674 | hppa_type_of_stub (input_sec, rel, hash, destination) | |
675 | asection *input_sec; | |
676 | const Elf_Internal_Rela *rel; | |
677 | struct elf32_hppa_link_hash_entry *hash; | |
678 | bfd_vma destination; | |
edd21aca | 679 | { |
edd21aca | 680 | bfd_vma location; |
30667bf3 AM |
681 | bfd_vma branch_offset; |
682 | bfd_vma max_branch_offset; | |
683 | unsigned int r_type; | |
684 | ||
685 | if (hash != NULL | |
686 | && (((hash->elf.root.type == bfd_link_hash_defined | |
74d1c347 AM |
687 | || hash->elf.root.type == bfd_link_hash_defweak) |
688 | && hash->elf.root.u.def.section->output_section == NULL) | |
689 | || (hash->elf.root.type == bfd_link_hash_defweak | |
690 | && hash->elf.dynindx != -1 | |
691 | && hash->elf.plt.offset != (bfd_vma) -1) | |
30667bf3 AM |
692 | || hash->elf.root.type == bfd_link_hash_undefweak |
693 | || hash->elf.root.type == bfd_link_hash_undefined | |
12cca0d2 | 694 | || (hash->maybe_pic_call && !(input_sec->flags & SEC_HAS_GOT_REF)))) |
30667bf3 AM |
695 | { |
696 | /* If output_section is NULL, then it's a symbol defined in a | |
697 | shared library. We will need an import stub. Decide between | |
74d1c347 AM |
698 | hppa_stub_import and hppa_stub_import_shared later. For |
699 | shared links we need stubs for undefined or weak syms too; | |
700 | They will presumably be resolved by the dynamic linker. */ | |
30667bf3 AM |
701 | return hppa_stub_import; |
702 | } | |
edd21aca | 703 | |
30667bf3 AM |
704 | /* Determine where the call point is. */ |
705 | location = (input_sec->output_offset | |
706 | + input_sec->output_section->vma | |
707 | + rel->r_offset); | |
edd21aca | 708 | |
30667bf3 AM |
709 | branch_offset = destination - location - 8; |
710 | r_type = ELF32_R_TYPE (rel->r_info); | |
edd21aca | 711 | |
30667bf3 AM |
712 | /* Determine if a long branch stub is needed. parisc branch offsets |
713 | are relative to the second instruction past the branch, ie. +8 | |
714 | bytes on from the branch instruction location. The offset is | |
715 | signed and counts in units of 4 bytes. */ | |
716 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 717 | { |
30667bf3 AM |
718 | max_branch_offset = (1 << (17-1)) << 2; |
719 | } | |
720 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
721 | { | |
722 | max_branch_offset = (1 << (12-1)) << 2; | |
723 | } | |
25f72752 | 724 | else /* R_PARISC_PCREL22F. */ |
30667bf3 AM |
725 | { |
726 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
727 | } |
728 | ||
30667bf3 | 729 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
730 | return hppa_stub_long_branch; |
731 | ||
30667bf3 AM |
732 | return hppa_stub_none; |
733 | } | |
edd21aca | 734 | |
30667bf3 AM |
735 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
736 | IN_ARG contains the link info pointer. */ | |
edd21aca | 737 | |
30667bf3 AM |
738 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
739 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 740 | |
30667bf3 | 741 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 742 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 743 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 744 | |
3ee1d854 AM |
745 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
746 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 747 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 748 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 749 | |
3ee1d854 AM |
750 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
751 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 752 | |
30667bf3 AM |
753 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
754 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
755 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
756 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 757 | |
30667bf3 AM |
758 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
759 | #define NOP 0x08000240 /* nop */ | |
760 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
761 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
762 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 763 | |
30667bf3 AM |
764 | #ifndef R19_STUBS |
765 | #define R19_STUBS 1 | |
766 | #endif | |
edd21aca | 767 | |
30667bf3 AM |
768 | #if R19_STUBS |
769 | #define LDW_R1_DLT LDW_R1_R19 | |
770 | #else | |
771 | #define LDW_R1_DLT LDW_R1_DP | |
772 | #endif | |
edd21aca | 773 | |
30667bf3 AM |
774 | static boolean |
775 | hppa_build_one_stub (gen_entry, in_arg) | |
776 | struct bfd_hash_entry *gen_entry; | |
777 | PTR in_arg; | |
778 | { | |
779 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
780 | struct bfd_link_info *info; | |
83c81bfe | 781 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
782 | asection *stub_sec; |
783 | bfd *stub_bfd; | |
784 | bfd_byte *loc; | |
785 | bfd_vma sym_value; | |
74d1c347 | 786 | bfd_vma insn; |
8dea1268 | 787 | bfd_vma off; |
74d1c347 | 788 | int val; |
30667bf3 | 789 | int size; |
edd21aca | 790 | |
30667bf3 AM |
791 | /* Massage our args to the form they really have. */ |
792 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
793 | info = (struct bfd_link_info *) in_arg; | |
794 | ||
83c81bfe | 795 | htab = hppa_link_hash_table (info); |
30667bf3 | 796 | stub_sec = stub_entry->stub_sec; |
edd21aca | 797 | |
30667bf3 | 798 | /* Make a note of the offset within the stubs for this entry. */ |
74d1c347 | 799 | stub_entry->stub_offset = stub_sec->_raw_size; |
30667bf3 | 800 | loc = stub_sec->contents + stub_entry->stub_offset; |
252b5132 | 801 | |
30667bf3 AM |
802 | stub_bfd = stub_sec->owner; |
803 | ||
804 | switch (stub_entry->stub_type) | |
805 | { | |
806 | case hppa_stub_long_branch: | |
807 | /* Create the long branch. A long branch is formed with "ldil" | |
808 | loading the upper bits of the target address into a register, | |
809 | then branching with "be" which adds in the lower bits. | |
810 | The "be" has its delay slot nullified. */ | |
811 | sym_value = (stub_entry->target_value | |
812 | + stub_entry->target_section->output_offset | |
813 | + stub_entry->target_section->output_section->vma); | |
814 | ||
74d1c347 AM |
815 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel); |
816 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); | |
30667bf3 AM |
817 | bfd_put_32 (stub_bfd, insn, loc); |
818 | ||
74d1c347 AM |
819 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel) >> 2; |
820 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); | |
30667bf3 AM |
821 | bfd_put_32 (stub_bfd, insn, loc + 4); |
822 | ||
30667bf3 | 823 | size = 8; |
edd21aca AM |
824 | break; |
825 | ||
30667bf3 AM |
826 | case hppa_stub_long_branch_shared: |
827 | /* Branches are relative. This is where we are going to. */ | |
828 | sym_value = (stub_entry->target_value | |
829 | + stub_entry->target_section->output_offset | |
830 | + stub_entry->target_section->output_section->vma); | |
831 | ||
832 | /* And this is where we are coming from, more or less. */ | |
833 | sym_value -= (stub_entry->stub_offset | |
834 | + stub_sec->output_offset | |
835 | + stub_sec->output_section->vma); | |
836 | ||
74d1c347 | 837 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 838 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 839 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
840 | bfd_put_32 (stub_bfd, insn, loc + 4); |
841 | ||
47d89dba | 842 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 843 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
844 | bfd_put_32 (stub_bfd, insn, loc + 8); |
845 | size = 12; | |
846 | break; | |
edd21aca | 847 | |
30667bf3 AM |
848 | case hppa_stub_import: |
849 | case hppa_stub_import_shared: | |
8dea1268 AM |
850 | off = stub_entry->h->elf.plt.offset; |
851 | if (off >= (bfd_vma) -2) | |
49e9d0d3 | 852 | abort (); |
8dea1268 AM |
853 | |
854 | off &= ~ (bfd_vma) 1; | |
855 | sym_value = (off | |
83c81bfe AM |
856 | + htab->splt->output_offset |
857 | + htab->splt->output_section->vma | |
858 | - elf_gp (htab->splt->output_section->owner)); | |
30667bf3 AM |
859 | |
860 | insn = ADDIL_DP; | |
861 | #if R19_STUBS | |
862 | if (stub_entry->stub_type == hppa_stub_import_shared) | |
863 | insn = ADDIL_R19; | |
864 | #endif | |
47d89dba | 865 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel), |
74d1c347 | 866 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 867 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 868 | |
47d89dba AM |
869 | /* It is critical to use lrsel/rrsel here because we are using |
870 | two different offsets (+0 and +4) from sym_value. If we use | |
871 | lsel/rsel then with unfortunate sym_values we will round | |
872 | sym_value+4 up to the next 2k block leading to a mis-match | |
873 | between the lsel and rsel value. */ | |
874 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel); | |
74d1c347 | 875 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 876 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 877 | |
83c81bfe | 878 | if (htab->multi_subspace) |
30667bf3 | 879 | { |
47d89dba | 880 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 881 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 882 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 883 | |
74d1c347 AM |
884 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
885 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
886 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
887 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 888 | |
30667bf3 AM |
889 | size = 28; |
890 | } | |
891 | else | |
892 | { | |
74d1c347 | 893 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 894 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 895 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 896 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 897 | |
30667bf3 AM |
898 | size = 16; |
899 | } | |
252b5132 | 900 | |
30667bf3 AM |
901 | if (!info->shared |
902 | && stub_entry->h != NULL | |
903 | && stub_entry->h->pic_call) | |
252b5132 | 904 | { |
30667bf3 AM |
905 | /* Build the .plt entry needed to call a PIC function from |
906 | statically linked code. We don't need any relocs. */ | |
907 | bfd *dynobj; | |
908 | struct elf32_hppa_link_hash_entry *eh; | |
909 | bfd_vma value; | |
252b5132 | 910 | |
ebe50bae | 911 | dynobj = htab->elf.dynobj; |
30667bf3 | 912 | eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h; |
252b5132 | 913 | |
49e9d0d3 AM |
914 | if (eh->elf.root.type != bfd_link_hash_defined |
915 | && eh->elf.root.type != bfd_link_hash_defweak) | |
916 | abort (); | |
252b5132 | 917 | |
30667bf3 AM |
918 | value = (eh->elf.root.u.def.value |
919 | + eh->elf.root.u.def.section->output_offset | |
920 | + eh->elf.root.u.def.section->output_section->vma); | |
252b5132 | 921 | |
30667bf3 | 922 | /* Fill in the entry in the procedure linkage table. |
252b5132 | 923 | |
30667bf3 | 924 | The format of a plt entry is |
74d1c347 AM |
925 | <funcaddr> |
926 | <__gp>. */ | |
252b5132 | 927 | |
83c81bfe AM |
928 | bfd_put_32 (htab->splt->owner, value, |
929 | htab->splt->contents + off); | |
930 | value = elf_gp (htab->splt->output_section->owner); | |
931 | bfd_put_32 (htab->splt->owner, value, | |
932 | htab->splt->contents + off + 4); | |
252b5132 | 933 | } |
30667bf3 | 934 | break; |
252b5132 | 935 | |
30667bf3 AM |
936 | case hppa_stub_export: |
937 | /* Branches are relative. This is where we are going to. */ | |
938 | sym_value = (stub_entry->target_value | |
939 | + stub_entry->target_section->output_offset | |
940 | + stub_entry->target_section->output_section->vma); | |
252b5132 | 941 | |
30667bf3 AM |
942 | /* And this is where we are coming from. */ |
943 | sym_value -= (stub_entry->stub_offset | |
944 | + stub_sec->output_offset | |
945 | + stub_sec->output_section->vma); | |
edd21aca | 946 | |
30667bf3 AM |
947 | if (sym_value - 8 + 0x40000 >= 0x80000) |
948 | { | |
edd21aca | 949 | (*_bfd_error_handler) |
30667bf3 | 950 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
8f615d07 | 951 | bfd_archive_filename (stub_entry->target_section->owner), |
30667bf3 AM |
952 | stub_sec->name, |
953 | (long) stub_entry->stub_offset, | |
954 | stub_entry->root.string); | |
955 | bfd_set_error (bfd_error_bad_value); | |
edd21aca | 956 | return false; |
252b5132 | 957 | } |
30667bf3 | 958 | |
74d1c347 AM |
959 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
960 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
30667bf3 AM |
961 | bfd_put_32 (stub_bfd, insn, loc); |
962 | ||
74d1c347 AM |
963 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
964 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
965 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
966 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
967 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
968 | |
969 | /* Point the function symbol at the stub. */ | |
970 | stub_entry->h->elf.root.u.def.section = stub_sec; | |
74d1c347 | 971 | stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size; |
30667bf3 AM |
972 | |
973 | size = 24; | |
974 | break; | |
975 | ||
976 | default: | |
977 | BFD_FAIL (); | |
978 | return false; | |
252b5132 RH |
979 | } |
980 | ||
74d1c347 | 981 | stub_sec->_raw_size += size; |
252b5132 RH |
982 | return true; |
983 | } | |
984 | ||
30667bf3 AM |
985 | #undef LDIL_R1 |
986 | #undef BE_SR4_R1 | |
987 | #undef BL_R1 | |
988 | #undef ADDIL_R1 | |
989 | #undef DEPI_R1 | |
990 | #undef ADDIL_DP | |
991 | #undef LDW_R1_R21 | |
992 | #undef LDW_R1_DLT | |
993 | #undef LDW_R1_R19 | |
994 | #undef ADDIL_R19 | |
995 | #undef LDW_R1_DP | |
996 | #undef LDSID_R21_R1 | |
997 | #undef MTSP_R1 | |
998 | #undef BE_SR0_R21 | |
999 | #undef STW_RP | |
1000 | #undef BV_R0_R21 | |
1001 | #undef BL_RP | |
1002 | #undef NOP | |
1003 | #undef LDW_RP | |
1004 | #undef LDSID_RP_R1 | |
1005 | #undef BE_SR0_RP | |
252b5132 | 1006 | |
30667bf3 AM |
1007 | /* As above, but don't actually build the stub. Just bump offset so |
1008 | we know stub section sizes. */ | |
1009 | ||
1010 | static boolean | |
1011 | hppa_size_one_stub (gen_entry, in_arg) | |
1012 | struct bfd_hash_entry *gen_entry; | |
1013 | PTR in_arg; | |
252b5132 | 1014 | { |
30667bf3 | 1015 | struct elf32_hppa_stub_hash_entry *stub_entry; |
83c81bfe | 1016 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1017 | int size; |
1018 | ||
1019 | /* Massage our args to the form they really have. */ | |
1020 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
83c81bfe | 1021 | htab = (struct elf32_hppa_link_hash_table *) in_arg; |
30667bf3 AM |
1022 | |
1023 | if (stub_entry->stub_type == hppa_stub_long_branch) | |
98ceb8ce | 1024 | size = 8; |
30667bf3 AM |
1025 | else if (stub_entry->stub_type == hppa_stub_long_branch_shared) |
1026 | size = 12; | |
1027 | else if (stub_entry->stub_type == hppa_stub_export) | |
1028 | size = 24; | |
74d1c347 | 1029 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 1030 | { |
83c81bfe | 1031 | if (htab->multi_subspace) |
30667bf3 AM |
1032 | size = 28; |
1033 | else | |
1034 | size = 16; | |
1035 | } | |
252b5132 | 1036 | |
74d1c347 | 1037 | stub_entry->stub_sec->_raw_size += size; |
30667bf3 AM |
1038 | return true; |
1039 | } | |
252b5132 | 1040 | |
30667bf3 AM |
1041 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
1042 | Additionally we set the default architecture and machine. */ | |
1043 | ||
1044 | static boolean | |
1045 | elf32_hppa_object_p (abfd) | |
1046 | bfd *abfd; | |
1047 | { | |
24a5e751 L |
1048 | Elf_Internal_Ehdr * i_ehdrp; |
1049 | unsigned int flags; | |
252b5132 | 1050 | |
24a5e751 L |
1051 | i_ehdrp = elf_elfheader (abfd); |
1052 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
1053 | { | |
1054 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX) | |
1055 | return false; | |
1056 | } | |
1057 | else | |
1058 | { | |
1059 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
1060 | return false; | |
1061 | } | |
1062 | ||
1063 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
1064 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
1065 | { | |
1066 | case EFA_PARISC_1_0: | |
1067 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
1068 | case EFA_PARISC_1_1: | |
1069 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
1070 | case EFA_PARISC_2_0: | |
1071 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
1072 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
1073 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
1074 | } | |
1075 | return true; | |
252b5132 RH |
1076 | } |
1077 | ||
252b5132 RH |
1078 | /* Undo the generic ELF code's subtraction of section->vma from the |
1079 | value of each external symbol. */ | |
1080 | ||
1081 | static boolean | |
1082 | elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
5f771d47 ILT |
1083 | bfd *abfd ATTRIBUTE_UNUSED; |
1084 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1085 | const Elf_Internal_Sym *sym ATTRIBUTE_UNUSED; | |
1086 | const char **namep ATTRIBUTE_UNUSED; | |
1087 | flagword *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
1088 | asection **secp; |
1089 | bfd_vma *valp; | |
1090 | { | |
1091 | *valp += (*secp)->vma; | |
1092 | return true; | |
1093 | } | |
1094 | ||
30667bf3 AM |
1095 | /* Create the .plt and .got sections, and set up our hash table |
1096 | short-cuts to various dynamic sections. */ | |
1097 | ||
1098 | static boolean | |
1099 | elf32_hppa_create_dynamic_sections (abfd, info) | |
1100 | bfd *abfd; | |
1101 | struct bfd_link_info *info; | |
252b5132 | 1102 | { |
83c81bfe | 1103 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 1104 | |
30667bf3 | 1105 | /* Don't try to create the .plt and .got twice. */ |
83c81bfe AM |
1106 | htab = hppa_link_hash_table (info); |
1107 | if (htab->splt != NULL) | |
30667bf3 | 1108 | return true; |
edd21aca | 1109 | |
30667bf3 AM |
1110 | /* Call the generic code to do most of the work. */ |
1111 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
1112 | return false; | |
252b5132 | 1113 | |
83c81bfe AM |
1114 | htab->splt = bfd_get_section_by_name (abfd, ".plt"); |
1115 | htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
30667bf3 | 1116 | |
83c81bfe AM |
1117 | htab->sgot = bfd_get_section_by_name (abfd, ".got"); |
1118 | htab->srelgot = bfd_make_section (abfd, ".rela.got"); | |
1119 | if (htab->srelgot == NULL | |
1120 | || ! bfd_set_section_flags (abfd, htab->srelgot, | |
30667bf3 AM |
1121 | (SEC_ALLOC |
1122 | | SEC_LOAD | |
1123 | | SEC_HAS_CONTENTS | |
1124 | | SEC_IN_MEMORY | |
1125 | | SEC_LINKER_CREATED | |
1126 | | SEC_READONLY)) | |
83c81bfe | 1127 | || ! bfd_set_section_alignment (abfd, htab->srelgot, 2)) |
30667bf3 | 1128 | return false; |
edd21aca | 1129 | |
83c81bfe AM |
1130 | htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
1131 | htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
30667bf3 AM |
1132 | |
1133 | return true; | |
1134 | } | |
1135 | ||
ebe50bae AM |
1136 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1137 | ||
51b64d56 | 1138 | static void |
ebe50bae AM |
1139 | elf32_hppa_copy_indirect_symbol (dir, ind) |
1140 | struct elf_link_hash_entry *dir, *ind; | |
1141 | { | |
1142 | struct elf32_hppa_link_hash_entry *edir, *eind; | |
1143 | ||
1144 | edir = (struct elf32_hppa_link_hash_entry *) dir; | |
1145 | eind = (struct elf32_hppa_link_hash_entry *) ind; | |
1146 | ||
bbd7ec4a | 1147 | if (eind->dyn_relocs != NULL) |
ebe50bae | 1148 | { |
bbd7ec4a AM |
1149 | if (edir->dyn_relocs != NULL) |
1150 | { | |
1151 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1152 | struct elf32_hppa_dyn_reloc_entry *p; | |
1153 | ||
1e370bd2 | 1154 | if (ind->root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
1155 | abort (); |
1156 | ||
1157 | /* Add reloc counts against the weak sym to the strong sym | |
1158 | list. Merge any entries against the same section. */ | |
1159 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
1160 | { | |
1161 | struct elf32_hppa_dyn_reloc_entry *q; | |
1162 | ||
1163 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
1164 | if (q->sec == p->sec) | |
1165 | { | |
1166 | #if RELATIVE_DYNRELOCS | |
1167 | q->relative_count += p->relative_count; | |
1168 | #endif | |
1169 | q->count += p->count; | |
1170 | *pp = p->next; | |
1171 | break; | |
1172 | } | |
1173 | if (q == NULL) | |
1174 | pp = &p->next; | |
1175 | } | |
1176 | *pp = edir->dyn_relocs; | |
1177 | } | |
1178 | ||
ebe50bae AM |
1179 | edir->dyn_relocs = eind->dyn_relocs; |
1180 | eind->dyn_relocs = NULL; | |
1181 | } | |
ebe50bae AM |
1182 | |
1183 | _bfd_elf_link_hash_copy_indirect (dir, ind); | |
1184 | } | |
1185 | ||
30667bf3 | 1186 | /* Look through the relocs for a section during the first phase, and |
3ac8354b AM |
1187 | calculate needed space in the global offset table, procedure linkage |
1188 | table, and dynamic reloc sections. At this point we haven't | |
1189 | necessarily read all the input files. */ | |
252b5132 RH |
1190 | |
1191 | static boolean | |
30667bf3 AM |
1192 | elf32_hppa_check_relocs (abfd, info, sec, relocs) |
1193 | bfd *abfd; | |
1194 | struct bfd_link_info *info; | |
1195 | asection *sec; | |
1196 | const Elf_Internal_Rela *relocs; | |
252b5132 | 1197 | { |
30667bf3 AM |
1198 | Elf_Internal_Shdr *symtab_hdr; |
1199 | struct elf_link_hash_entry **sym_hashes; | |
30667bf3 AM |
1200 | const Elf_Internal_Rela *rel; |
1201 | const Elf_Internal_Rela *rel_end; | |
83c81bfe | 1202 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1203 | asection *sreloc; |
1204 | asection *stubreloc; | |
1205 | ||
1206 | if (info->relocateable) | |
1207 | return true; | |
1208 | ||
83c81bfe | 1209 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1210 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1211 | sym_hashes = elf_sym_hashes (abfd); | |
30667bf3 AM |
1212 | sreloc = NULL; |
1213 | stubreloc = NULL; | |
1214 | ||
1215 | rel_end = relocs + sec->reloc_count; | |
1216 | for (rel = relocs; rel < rel_end; rel++) | |
1217 | { | |
1218 | enum { | |
1219 | NEED_GOT = 1, | |
1220 | NEED_PLT = 2, | |
1221 | NEED_DYNREL = 4, | |
98ceb8ce | 1222 | PLT_PLABEL = 8 |
30667bf3 | 1223 | }; |
edd21aca | 1224 | |
30667bf3 AM |
1225 | unsigned int r_symndx, r_type; |
1226 | struct elf32_hppa_link_hash_entry *h; | |
1227 | int need_entry; | |
252b5132 | 1228 | |
30667bf3 | 1229 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 | 1230 | |
30667bf3 AM |
1231 | if (r_symndx < symtab_hdr->sh_info) |
1232 | h = NULL; | |
1233 | else | |
1234 | h = ((struct elf32_hppa_link_hash_entry *) | |
1235 | sym_hashes[r_symndx - symtab_hdr->sh_info]); | |
252b5132 | 1236 | |
30667bf3 | 1237 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 | 1238 | |
30667bf3 AM |
1239 | switch (r_type) |
1240 | { | |
1241 | case R_PARISC_DLTIND14F: | |
1242 | case R_PARISC_DLTIND14R: | |
1243 | case R_PARISC_DLTIND21L: | |
1244 | /* This symbol requires a global offset table entry. */ | |
1245 | need_entry = NEED_GOT; | |
1246 | ||
1247 | /* Mark this section as containing PIC code. */ | |
1248 | sec->flags |= SEC_HAS_GOT_REF; | |
1249 | break; | |
1250 | ||
1251 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1252 | case R_PARISC_PLABEL21L: | |
1253 | case R_PARISC_PLABEL32: | |
74d1c347 | 1254 | /* If the addend is non-zero, we break badly. */ |
49e9d0d3 AM |
1255 | if (rel->r_addend != 0) |
1256 | abort (); | |
74d1c347 AM |
1257 | |
1258 | /* If we are creating a shared library, then we need to | |
1259 | create a PLT entry for all PLABELs, because PLABELs with | |
1260 | local symbols may be passed via a pointer to another | |
1261 | object. Additionally, output a dynamic relocation | |
4dc86686 AM |
1262 | pointing to the PLT entry. |
1263 | For executables, the original 32-bit ABI allowed two | |
1264 | different styles of PLABELs (function pointers): For | |
1265 | global functions, the PLABEL word points into the .plt | |
1266 | two bytes past a (function address, gp) pair, and for | |
1267 | local functions the PLABEL points directly at the | |
1268 | function. The magic +2 for the first type allows us to | |
1269 | differentiate between the two. As you can imagine, this | |
1270 | is a real pain when it comes to generating code to call | |
1271 | functions indirectly or to compare function pointers. | |
1272 | We avoid the mess by always pointing a PLABEL into the | |
1273 | .plt, even for local functions. */ | |
74d1c347 | 1274 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1275 | break; |
1276 | ||
1277 | case R_PARISC_PCREL12F: | |
83c81bfe | 1278 | htab->has_12bit_branch = 1; |
47d89dba | 1279 | /* Fall thru. */ |
30667bf3 AM |
1280 | case R_PARISC_PCREL17C: |
1281 | case R_PARISC_PCREL17F: | |
83c81bfe | 1282 | htab->has_17bit_branch = 1; |
47d89dba | 1283 | /* Fall thru. */ |
30667bf3 | 1284 | case R_PARISC_PCREL22F: |
47d89dba AM |
1285 | /* Function calls might need to go through the .plt, and |
1286 | might require long branch stubs. */ | |
30667bf3 AM |
1287 | if (h == NULL) |
1288 | { | |
1289 | /* We know local syms won't need a .plt entry, and if | |
1290 | they need a long branch stub we can't guarantee that | |
1291 | we can reach the stub. So just flag an error later | |
1292 | if we're doing a shared link and find we need a long | |
1293 | branch stub. */ | |
1294 | continue; | |
1295 | } | |
1296 | else | |
1297 | { | |
1298 | /* Global symbols will need a .plt entry if they remain | |
1299 | global, and in most cases won't need a long branch | |
1300 | stub. Unfortunately, we have to cater for the case | |
1301 | where a symbol is forced local by versioning, or due | |
1302 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1303 | need_entry = NEED_PLT; |
4dc86686 | 1304 | if (h->elf.type == STT_PARISC_MILLI) |
98ceb8ce | 1305 | need_entry = 0; |
30667bf3 AM |
1306 | } |
1307 | break; | |
1308 | ||
1309 | case R_PARISC_SEGBASE: /* Used to set segment base. */ | |
c46b7515 | 1310 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1311 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1312 | case R_PARISC_PCREL14R: | |
1313 | case R_PARISC_PCREL17R: /* External branches. */ | |
1314 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
1315 | /* We don't need to propagate the relocation if linking a | |
1316 | shared object since these are section relative. */ | |
1317 | continue; | |
1318 | ||
1319 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1320 | case R_PARISC_DPREL14R: | |
1321 | case R_PARISC_DPREL21L: | |
1322 | if (info->shared) | |
1323 | { | |
1324 | (*_bfd_error_handler) | |
1325 | (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1326 | bfd_archive_filename (abfd), |
30667bf3 AM |
1327 | elf_hppa_howto_table[r_type].name); |
1328 | bfd_set_error (bfd_error_bad_value); | |
1329 | return false; | |
1330 | } | |
1331 | /* Fall through. */ | |
1332 | ||
1333 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1334 | case R_PARISC_DIR17R: | |
47d89dba AM |
1335 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1336 | case R_PARISC_DIR14R: | |
30667bf3 AM |
1337 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
1338 | #if 1 | |
1339 | /* Help debug shared library creation. Any of the above | |
1340 | relocs can be used in shared libs, but they may cause | |
1341 | pages to become unshared. */ | |
1342 | if (info->shared) | |
1343 | { | |
1344 | (*_bfd_error_handler) | |
1345 | (_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1346 | bfd_archive_filename (abfd), |
30667bf3 AM |
1347 | elf_hppa_howto_table[r_type].name); |
1348 | } | |
1349 | /* Fall through. */ | |
1350 | #endif | |
1351 | ||
c46b7515 | 1352 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1353 | /* We may want to output a dynamic relocation later. */ |
1354 | need_entry = NEED_DYNREL; | |
1355 | break; | |
1356 | ||
1357 | /* This relocation describes the C++ object vtable hierarchy. | |
1358 | Reconstruct it for later use during GC. */ | |
1359 | case R_PARISC_GNU_VTINHERIT: | |
1360 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, | |
1361 | &h->elf, rel->r_offset)) | |
1362 | return false; | |
1363 | continue; | |
1364 | ||
1365 | /* This relocation describes which C++ vtable entries are actually | |
1366 | used. Record for later use during GC. */ | |
1367 | case R_PARISC_GNU_VTENTRY: | |
1368 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, | |
36605136 | 1369 | &h->elf, rel->r_addend)) |
30667bf3 AM |
1370 | return false; |
1371 | continue; | |
1372 | ||
1373 | default: | |
1374 | continue; | |
1375 | } | |
1376 | ||
1377 | /* Now carry out our orders. */ | |
1378 | if (need_entry & NEED_GOT) | |
1379 | { | |
1380 | /* Allocate space for a GOT entry, as well as a dynamic | |
25f72752 | 1381 | relocation for this entry. */ |
83c81bfe | 1382 | if (htab->sgot == NULL) |
30667bf3 | 1383 | { |
3ac8354b AM |
1384 | if (htab->elf.dynobj == NULL) |
1385 | htab->elf.dynobj = abfd; | |
1386 | if (!elf32_hppa_create_dynamic_sections (htab->elf.dynobj, info)) | |
30667bf3 AM |
1387 | return false; |
1388 | } | |
1389 | ||
1390 | if (h != NULL) | |
1391 | { | |
51b64d56 | 1392 | h->elf.got.refcount += 1; |
30667bf3 AM |
1393 | } |
1394 | else | |
1395 | { | |
3ac8354b AM |
1396 | bfd_signed_vma *local_got_refcounts; |
1397 | ||
30667bf3 | 1398 | /* This is a global offset table entry for a local symbol. */ |
3ac8354b | 1399 | local_got_refcounts = elf_local_got_refcounts (abfd); |
30667bf3 AM |
1400 | if (local_got_refcounts == NULL) |
1401 | { | |
dc810e39 | 1402 | bfd_size_type size; |
30667bf3 | 1403 | |
74d1c347 AM |
1404 | /* Allocate space for local got offsets and local |
1405 | plt offsets. Done this way to save polluting | |
1406 | elf_obj_tdata with another target specific | |
1407 | pointer. */ | |
dc810e39 AM |
1408 | size = symtab_hdr->sh_info; |
1409 | size *= 2 * sizeof (bfd_signed_vma); | |
30667bf3 | 1410 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1411 | bfd_zalloc (abfd, size)); |
30667bf3 AM |
1412 | if (local_got_refcounts == NULL) |
1413 | return false; | |
1414 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
30667bf3 | 1415 | } |
ebe50bae | 1416 | local_got_refcounts[r_symndx] += 1; |
30667bf3 AM |
1417 | } |
1418 | } | |
1419 | ||
1420 | if (need_entry & NEED_PLT) | |
1421 | { | |
1422 | /* If we are creating a shared library, and this is a reloc | |
1423 | against a weak symbol or a global symbol in a dynamic | |
1424 | object, then we will be creating an import stub and a | |
1425 | .plt entry for the symbol. Similarly, on a normal link | |
1426 | to symbols defined in a dynamic object we'll need the | |
1427 | import stub and a .plt entry. We don't know yet whether | |
1428 | the symbol is defined or not, so make an entry anyway and | |
1429 | clean up later in adjust_dynamic_symbol. */ | |
1430 | if ((sec->flags & SEC_ALLOC) != 0) | |
1431 | { | |
74d1c347 | 1432 | if (h != NULL) |
30667bf3 | 1433 | { |
51b64d56 AM |
1434 | h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
1435 | h->elf.plt.refcount += 1; | |
74d1c347 | 1436 | |
36605136 AM |
1437 | /* If this .plt entry is for a plabel, mark it so |
1438 | that adjust_dynamic_symbol will keep the entry | |
1439 | even if it appears to be local. */ | |
74d1c347 AM |
1440 | if (need_entry & PLT_PLABEL) |
1441 | h->plabel = 1; | |
1442 | } | |
1443 | else if (need_entry & PLT_PLABEL) | |
1444 | { | |
3ac8354b | 1445 | bfd_signed_vma *local_got_refcounts; |
68fb2e56 | 1446 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 | 1447 | |
3ac8354b | 1448 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1449 | if (local_got_refcounts == NULL) |
1450 | { | |
dc810e39 | 1451 | bfd_size_type size; |
74d1c347 AM |
1452 | |
1453 | /* Allocate space for local got offsets and local | |
1454 | plt offsets. */ | |
dc810e39 AM |
1455 | size = symtab_hdr->sh_info; |
1456 | size *= 2 * sizeof (bfd_signed_vma); | |
74d1c347 | 1457 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1458 | bfd_zalloc (abfd, size)); |
74d1c347 AM |
1459 | if (local_got_refcounts == NULL) |
1460 | return false; | |
1461 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
74d1c347 | 1462 | } |
68fb2e56 AM |
1463 | local_plt_refcounts = (local_got_refcounts |
1464 | + symtab_hdr->sh_info); | |
ebe50bae | 1465 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1466 | } |
30667bf3 AM |
1467 | } |
1468 | } | |
1469 | ||
98ceb8ce | 1470 | if (need_entry & NEED_DYNREL) |
30667bf3 AM |
1471 | { |
1472 | /* Flag this symbol as having a non-got, non-plt reference | |
1473 | so that we generate copy relocs if it turns out to be | |
1474 | dynamic. */ | |
ebe50bae | 1475 | if (h != NULL && !info->shared) |
30667bf3 AM |
1476 | h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; |
1477 | ||
1478 | /* If we are creating a shared library then we need to copy | |
1479 | the reloc into the shared library. However, if we are | |
1480 | linking with -Bsymbolic, we need only copy absolute | |
1481 | relocs or relocs against symbols that are not defined in | |
1482 | an object we are including in the link. PC- or DP- or | |
1483 | DLT-relative relocs against any local sym or global sym | |
1484 | with DEF_REGULAR set, can be discarded. At this point we | |
1485 | have not seen all the input files, so it is possible that | |
1486 | DEF_REGULAR is not set now but will be set later (it is | |
1487 | never cleared). We account for that possibility below by | |
98ceb8ce | 1488 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1489 | hash table entry. |
1490 | ||
1491 | A similar situation to the -Bsymbolic case occurs when | |
1492 | creating shared libraries and symbol visibility changes | |
1493 | render the symbol local. | |
1494 | ||
1495 | As it turns out, all the relocs we will be creating here | |
1496 | are absolute, so we cannot remove them on -Bsymbolic | |
1497 | links or visibility changes anyway. A STUB_REL reloc | |
1498 | is absolute too, as in that case it is the reloc in the | |
1499 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1500 | reloc in the branch. |
1501 | ||
1502 | If on the other hand, we are creating an executable, we | |
1503 | may need to keep relocations for symbols satisfied by a | |
1504 | dynamic library if we manage to avoid copy relocs for the | |
1505 | symbol. */ | |
446f2863 AM |
1506 | if ((info->shared |
1507 | && (sec->flags & SEC_ALLOC) != 0 | |
1508 | && (IS_ABSOLUTE_RELOC (r_type) | |
1509 | || (h != NULL | |
1510 | && (!info->symbolic | |
1511 | || h->elf.root.type == bfd_link_hash_defweak | |
1512 | || (h->elf.elf_link_hash_flags | |
1513 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1514 | || (!info->shared | |
1515 | && (sec->flags & SEC_ALLOC) != 0 | |
1516 | && h != NULL | |
446f2863 AM |
1517 | && (h->elf.root.type == bfd_link_hash_defweak |
1518 | || (h->elf.elf_link_hash_flags | |
1519 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
30667bf3 | 1520 | { |
ec338859 AM |
1521 | struct elf32_hppa_dyn_reloc_entry *p; |
1522 | struct elf32_hppa_dyn_reloc_entry **head; | |
1523 | ||
30667bf3 AM |
1524 | /* Create a reloc section in dynobj and make room for |
1525 | this reloc. */ | |
98ceb8ce | 1526 | if (sreloc == NULL) |
30667bf3 AM |
1527 | { |
1528 | char *name; | |
3ac8354b | 1529 | bfd *dynobj; |
30667bf3 | 1530 | |
98ceb8ce AM |
1531 | name = (bfd_elf_string_from_elf_section |
1532 | (abfd, | |
1533 | elf_elfheader (abfd)->e_shstrndx, | |
1534 | elf_section_data (sec)->rel_hdr.sh_name)); | |
30667bf3 AM |
1535 | if (name == NULL) |
1536 | { | |
1537 | (*_bfd_error_handler) | |
1538 | (_("Could not find relocation section for %s"), | |
1539 | sec->name); | |
1540 | bfd_set_error (bfd_error_bad_value); | |
1541 | return false; | |
1542 | } | |
1543 | ||
3ac8354b AM |
1544 | if (htab->elf.dynobj == NULL) |
1545 | htab->elf.dynobj = abfd; | |
1546 | ||
1547 | dynobj = htab->elf.dynobj; | |
98ceb8ce AM |
1548 | sreloc = bfd_get_section_by_name (dynobj, name); |
1549 | if (sreloc == NULL) | |
30667bf3 AM |
1550 | { |
1551 | flagword flags; | |
1552 | ||
98ceb8ce | 1553 | sreloc = bfd_make_section (dynobj, name); |
30667bf3 AM |
1554 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1555 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1556 | if ((sec->flags & SEC_ALLOC) != 0) | |
1557 | flags |= SEC_ALLOC | SEC_LOAD; | |
98ceb8ce AM |
1558 | if (sreloc == NULL |
1559 | || !bfd_set_section_flags (dynobj, sreloc, flags) | |
1560 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) | |
30667bf3 AM |
1561 | return false; |
1562 | } | |
30667bf3 | 1563 | |
98ceb8ce | 1564 | elf_section_data (sec)->sreloc = sreloc; |
30667bf3 AM |
1565 | } |
1566 | ||
98ceb8ce AM |
1567 | /* If this is a global symbol, we count the number of |
1568 | relocations we need for this symbol. */ | |
1569 | if (h != NULL) | |
30667bf3 | 1570 | { |
ec338859 AM |
1571 | head = &h->dyn_relocs; |
1572 | } | |
1573 | else | |
1574 | { | |
1575 | /* Track dynamic relocs needed for local syms too. | |
1576 | We really need local syms available to do this | |
1577 | easily. Oh well. */ | |
1578 | ||
1579 | asection *s; | |
1580 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
1581 | sec, r_symndx); | |
1582 | if (s == NULL) | |
1583 | return false; | |
30667bf3 | 1584 | |
ec338859 AM |
1585 | head = ((struct elf32_hppa_dyn_reloc_entry **) |
1586 | &elf_section_data (s)->local_dynrel); | |
1587 | } | |
1588 | ||
1589 | p = *head; | |
1590 | if (p == NULL || p->sec != sec) | |
1591 | { | |
1592 | p = ((struct elf32_hppa_dyn_reloc_entry *) | |
1593 | bfd_alloc (htab->elf.dynobj, | |
1594 | (bfd_size_type) sizeof *p)); | |
1595 | if (p == NULL) | |
1596 | return false; | |
1597 | p->next = *head; | |
1598 | *head = p; | |
1599 | p->sec = sec; | |
1600 | p->count = 0; | |
98ceb8ce | 1601 | #if RELATIVE_DYNRELOCS |
ec338859 | 1602 | p->relative_count = 0; |
98ceb8ce | 1603 | #endif |
ec338859 | 1604 | } |
98ceb8ce | 1605 | |
ec338859 | 1606 | p->count += 1; |
98ceb8ce | 1607 | #if RELATIVE_DYNRELOCS |
ec338859 AM |
1608 | if (!IS_ABSOLUTE_RELOC (rtype)) |
1609 | p->relative_count += 1; | |
98ceb8ce | 1610 | #endif |
30667bf3 AM |
1611 | } |
1612 | } | |
1613 | } | |
edd21aca AM |
1614 | |
1615 | return true; | |
1616 | } | |
1617 | ||
30667bf3 AM |
1618 | /* Return the section that should be marked against garbage collection |
1619 | for a given relocation. */ | |
1620 | ||
1621 | static asection * | |
1622 | elf32_hppa_gc_mark_hook (abfd, info, rel, h, sym) | |
1623 | bfd *abfd; | |
1624 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1625 | Elf_Internal_Rela *rel; | |
1626 | struct elf_link_hash_entry *h; | |
1627 | Elf_Internal_Sym *sym; | |
1628 | { | |
1629 | if (h != NULL) | |
1630 | { | |
1631 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1632 | { | |
1633 | case R_PARISC_GNU_VTINHERIT: | |
1634 | case R_PARISC_GNU_VTENTRY: | |
1635 | break; | |
1636 | ||
1637 | default: | |
1638 | switch (h->root.type) | |
1639 | { | |
1640 | case bfd_link_hash_defined: | |
1641 | case bfd_link_hash_defweak: | |
1642 | return h->root.u.def.section; | |
1643 | ||
1644 | case bfd_link_hash_common: | |
1645 | return h->root.u.c.p->section; | |
1646 | ||
1647 | default: | |
1648 | break; | |
1649 | } | |
1650 | } | |
1651 | } | |
1652 | else | |
1653 | { | |
1654 | if (!(elf_bad_symtab (abfd) | |
1655 | && ELF_ST_BIND (sym->st_info) != STB_LOCAL) | |
1656 | && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) | |
1657 | && sym->st_shndx != SHN_COMMON)) | |
1658 | { | |
1659 | return bfd_section_from_elf_index (abfd, sym->st_shndx); | |
1660 | } | |
1661 | } | |
1662 | ||
1663 | return NULL; | |
1664 | } | |
1665 | ||
30667bf3 AM |
1666 | /* Update the got and plt entry reference counts for the section being |
1667 | removed. */ | |
edd21aca AM |
1668 | |
1669 | static boolean | |
30667bf3 AM |
1670 | elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs) |
1671 | bfd *abfd; | |
1672 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1673 | asection *sec; | |
1674 | const Elf_Internal_Rela *relocs; | |
edd21aca | 1675 | { |
30667bf3 AM |
1676 | Elf_Internal_Shdr *symtab_hdr; |
1677 | struct elf_link_hash_entry **sym_hashes; | |
1678 | bfd_signed_vma *local_got_refcounts; | |
74d1c347 | 1679 | bfd_signed_vma *local_plt_refcounts; |
30667bf3 AM |
1680 | const Elf_Internal_Rela *rel, *relend; |
1681 | unsigned long r_symndx; | |
1682 | struct elf_link_hash_entry *h; | |
83c81bfe | 1683 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 1684 | bfd *dynobj; |
30667bf3 | 1685 | |
ec338859 | 1686 | elf_section_data (sec)->local_dynrel = NULL; |
98ceb8ce | 1687 | |
30667bf3 AM |
1688 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1689 | sym_hashes = elf_sym_hashes (abfd); | |
1690 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
74d1c347 AM |
1691 | local_plt_refcounts = local_got_refcounts; |
1692 | if (local_plt_refcounts != NULL) | |
1693 | local_plt_refcounts += symtab_hdr->sh_info; | |
83c81bfe | 1694 | htab = hppa_link_hash_table (info); |
ebe50bae | 1695 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
1696 | if (dynobj == NULL) |
1697 | return true; | |
1698 | ||
30667bf3 AM |
1699 | relend = relocs + sec->reloc_count; |
1700 | for (rel = relocs; rel < relend; rel++) | |
1701 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1702 | { | |
1703 | case R_PARISC_DLTIND14F: | |
1704 | case R_PARISC_DLTIND14R: | |
1705 | case R_PARISC_DLTIND21L: | |
1706 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1707 | if (r_symndx >= symtab_hdr->sh_info) | |
1708 | { | |
1709 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1710 | if (h->got.refcount > 0) | |
4dc86686 | 1711 | h->got.refcount -= 1; |
30667bf3 AM |
1712 | } |
1713 | else if (local_got_refcounts != NULL) | |
1714 | { | |
1715 | if (local_got_refcounts[r_symndx] > 0) | |
4dc86686 | 1716 | local_got_refcounts[r_symndx] -= 1; |
30667bf3 AM |
1717 | } |
1718 | break; | |
edd21aca | 1719 | |
30667bf3 AM |
1720 | case R_PARISC_PCREL12F: |
1721 | case R_PARISC_PCREL17C: | |
1722 | case R_PARISC_PCREL17F: | |
1723 | case R_PARISC_PCREL22F: | |
1724 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1725 | if (r_symndx >= symtab_hdr->sh_info) | |
1726 | { | |
1727 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1728 | if (h->plt.refcount > 0) | |
1729 | h->plt.refcount -= 1; | |
1730 | } | |
1731 | break; | |
edd21aca | 1732 | |
74d1c347 AM |
1733 | case R_PARISC_PLABEL14R: |
1734 | case R_PARISC_PLABEL21L: | |
1735 | case R_PARISC_PLABEL32: | |
1736 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1737 | if (r_symndx >= symtab_hdr->sh_info) | |
1738 | { | |
98ceb8ce AM |
1739 | struct elf32_hppa_link_hash_entry *eh; |
1740 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1741 | struct elf32_hppa_dyn_reloc_entry *p; | |
1742 | ||
74d1c347 | 1743 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
98ceb8ce | 1744 | |
74d1c347 AM |
1745 | if (h->plt.refcount > 0) |
1746 | h->plt.refcount -= 1; | |
98ceb8ce AM |
1747 | |
1748 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1749 | ||
1750 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1751 | if (p->sec == sec) | |
1752 | { | |
1753 | #if RELATIVE_DYNRELOCS | |
1754 | if (!IS_ABSOLUTE_RELOC (rtype)) | |
1755 | p->relative_count -= 1; | |
1756 | #endif | |
1757 | p->count -= 1; | |
1758 | if (p->count == 0) | |
1759 | *pp = p->next; | |
1760 | break; | |
1761 | } | |
74d1c347 AM |
1762 | } |
1763 | else if (local_plt_refcounts != NULL) | |
1764 | { | |
1765 | if (local_plt_refcounts[r_symndx] > 0) | |
1766 | local_plt_refcounts[r_symndx] -= 1; | |
1767 | } | |
1768 | break; | |
1769 | ||
98ceb8ce AM |
1770 | case R_PARISC_DIR32: |
1771 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1772 | if (r_symndx >= symtab_hdr->sh_info) | |
1773 | { | |
1774 | struct elf32_hppa_link_hash_entry *eh; | |
1775 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1776 | struct elf32_hppa_dyn_reloc_entry *p; | |
1777 | ||
1778 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1779 | ||
1780 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1781 | ||
1782 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1783 | if (p->sec == sec) | |
1784 | { | |
1785 | #if RELATIVE_DYNRELOCS | |
1786 | if (!IS_ABSOLUTE_RELOC (R_PARISC_DIR32)) | |
1787 | p->relative_count -= 1; | |
1788 | #endif | |
1789 | p->count -= 1; | |
1790 | if (p->count == 0) | |
1791 | *pp = p->next; | |
1792 | break; | |
1793 | } | |
1794 | } | |
1795 | break; | |
1796 | ||
30667bf3 AM |
1797 | default: |
1798 | break; | |
1799 | } | |
252b5132 | 1800 | |
252b5132 RH |
1801 | return true; |
1802 | } | |
1803 | ||
74d1c347 AM |
1804 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1805 | plabels. */ | |
1806 | ||
1807 | static void | |
1808 | elf32_hppa_hide_symbol (info, h) | |
1809 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1810 | struct elf_link_hash_entry *h; | |
1811 | { | |
5fba655a L |
1812 | if ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0) |
1813 | h->dynindx = -1; | |
74d1c347 AM |
1814 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel) |
1815 | { | |
1816 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1817 | h->plt.offset = (bfd_vma) -1; | |
1818 | } | |
1819 | } | |
1820 | ||
4dc86686 AM |
1821 | /* This is the condition under which elf32_hppa_finish_dynamic_symbol |
1822 | will be called from elflink.h. If elflink.h doesn't call our | |
1823 | finish_dynamic_symbol routine, we'll need to do something about | |
1824 | initializing any .plt and .got entries in elf32_hppa_relocate_section. */ | |
1825 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
1826 | ((DYN) \ | |
1827 | && ((INFO)->shared \ | |
1828 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
1829 | && ((H)->dynindx != -1 \ | |
1830 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
1831 | ||
30667bf3 AM |
1832 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1833 | regular object. The current definition is in some section of the | |
1834 | dynamic object, but we're not including those sections. We have to | |
1835 | change the definition to something the rest of the link can | |
1836 | understand. */ | |
252b5132 | 1837 | |
30667bf3 AM |
1838 | static boolean |
1839 | elf32_hppa_adjust_dynamic_symbol (info, h) | |
1840 | struct bfd_link_info *info; | |
1841 | struct elf_link_hash_entry *h; | |
252b5132 | 1842 | { |
83c81bfe | 1843 | struct elf32_hppa_link_hash_table *htab; |
ebe50bae AM |
1844 | struct elf32_hppa_link_hash_entry *eh; |
1845 | struct elf32_hppa_dyn_reloc_entry *p; | |
30667bf3 | 1846 | asection *s; |
3ac8354b | 1847 | unsigned int power_of_two; |
30667bf3 AM |
1848 | |
1849 | /* If this is a function, put it in the procedure linkage table. We | |
1850 | will fill in the contents of the procedure linkage table later, | |
1851 | when we know the address of the .got section. */ | |
1852 | if (h->type == STT_FUNC | |
1853 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1854 | { | |
12cca0d2 AM |
1855 | if (!info->shared |
1856 | && h->plt.refcount > 0 | |
1857 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1858 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0) | |
1859 | { | |
1860 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; | |
1861 | } | |
1862 | ||
30667bf3 AM |
1863 | if (h->plt.refcount <= 0 |
1864 | || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1865 | && h->root.type != bfd_link_hash_defweak | |
74d1c347 | 1866 | && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel |
30667bf3 AM |
1867 | && (!info->shared || info->symbolic))) |
1868 | { | |
1869 | /* The .plt entry is not needed when: | |
1870 | a) Garbage collection has removed all references to the | |
1871 | symbol, or | |
1872 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1873 | object, and it's not a weak definition, nor is the symbol |
1874 | used by a plabel relocation. Either this object is the | |
1875 | application or we are doing a shared symbolic link. */ | |
1876 | ||
1877 | /* As a special sop to the hppa ABI, we keep a .plt entry | |
1878 | for functions in sections containing PIC code. */ | |
12cca0d2 AM |
1879 | if (((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call) |
1880 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; | |
30667bf3 AM |
1881 | else |
1882 | { | |
1883 | h->plt.offset = (bfd_vma) -1; | |
1884 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
30667bf3 | 1885 | } |
30667bf3 | 1886 | } |
4dc86686 | 1887 | |
30667bf3 AM |
1888 | return true; |
1889 | } | |
bbd7ec4a AM |
1890 | else |
1891 | h->plt.offset = (bfd_vma) -1; | |
edd21aca | 1892 | |
30667bf3 AM |
1893 | /* If this is a weak symbol, and there is a real definition, the |
1894 | processor independent code will have arranged for us to see the | |
1895 | real definition first, and we can just use the same value. */ | |
1896 | if (h->weakdef != NULL) | |
edd21aca | 1897 | { |
49e9d0d3 AM |
1898 | if (h->weakdef->root.type != bfd_link_hash_defined |
1899 | && h->weakdef->root.type != bfd_link_hash_defweak) | |
1900 | abort (); | |
30667bf3 AM |
1901 | h->root.u.def.section = h->weakdef->root.u.def.section; |
1902 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
0a991dfe | 1903 | return true; |
30667bf3 | 1904 | } |
edd21aca | 1905 | |
30667bf3 AM |
1906 | /* This is a reference to a symbol defined by a dynamic object which |
1907 | is not a function. */ | |
1908 | ||
1909 | /* If we are creating a shared library, we must presume that the | |
1910 | only references to the symbol are via the global offset table. | |
1911 | For such cases we need not do anything here; the relocations will | |
1912 | be handled correctly by relocate_section. */ | |
1913 | if (info->shared) | |
1914 | return true; | |
1915 | ||
1916 | /* If there are no references to this symbol that do not use the | |
1917 | GOT, we don't need to generate a copy reloc. */ | |
1918 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
1919 | return true; | |
1920 | ||
ebe50bae AM |
1921 | eh = (struct elf32_hppa_link_hash_entry *) h; |
1922 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1923 | { | |
1924 | s = p->sec->output_section; | |
1925 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1926 | break; | |
1927 | } | |
1928 | ||
1929 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1930 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1931 | if (p == NULL) | |
1932 | { | |
1933 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
1934 | return true; | |
1935 | } | |
1936 | ||
30667bf3 AM |
1937 | /* We must allocate the symbol in our .dynbss section, which will |
1938 | become part of the .bss section of the executable. There will be | |
1939 | an entry for this symbol in the .dynsym section. The dynamic | |
1940 | object will contain position independent code, so all references | |
1941 | from the dynamic object to this symbol will go through the global | |
1942 | offset table. The dynamic linker will use the .dynsym entry to | |
1943 | determine the address it must put in the global offset table, so | |
1944 | both the dynamic object and the regular object will refer to the | |
1945 | same memory location for the variable. */ | |
1946 | ||
3ac8354b | 1947 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1948 | |
1949 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1950 | copy the initial value out of the dynamic object and into the | |
3ac8354b | 1951 | runtime process image. */ |
30667bf3 AM |
1952 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
1953 | { | |
3ac8354b | 1954 | htab->srelbss->_raw_size += sizeof (Elf32_External_Rela); |
30667bf3 | 1955 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
edd21aca | 1956 | } |
252b5132 | 1957 | |
3ac8354b AM |
1958 | /* We need to figure out the alignment required for this symbol. I |
1959 | have no idea how other ELF linkers handle this. */ | |
30667bf3 | 1960 | |
3ac8354b AM |
1961 | power_of_two = bfd_log2 (h->size); |
1962 | if (power_of_two > 3) | |
1963 | power_of_two = 3; | |
1964 | ||
1965 | /* Apply the required alignment. */ | |
1966 | s = htab->sdynbss; | |
1967 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1968 | (bfd_size_type) (1 << power_of_two)); | |
1969 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
1970 | { | |
1971 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) | |
1972 | return false; | |
1973 | } | |
30667bf3 | 1974 | |
30667bf3 AM |
1975 | /* Define the symbol as being at this point in the section. */ |
1976 | h->root.u.def.section = s; | |
1977 | h->root.u.def.value = s->_raw_size; | |
edd21aca | 1978 | |
30667bf3 AM |
1979 | /* Increment the section size to make room for the symbol. */ |
1980 | s->_raw_size += h->size; | |
252b5132 RH |
1981 | |
1982 | return true; | |
1983 | } | |
1984 | ||
30667bf3 AM |
1985 | /* Called via elf_link_hash_traverse to create .plt entries for an |
1986 | application that uses statically linked PIC functions. Similar to | |
1987 | the first part of elf32_hppa_adjust_dynamic_symbol. */ | |
252b5132 | 1988 | |
30667bf3 | 1989 | static boolean |
a8d02d66 | 1990 | mark_PIC_calls (h, inf) |
30667bf3 | 1991 | struct elf_link_hash_entry *h; |
4dc86686 | 1992 | PTR inf ATTRIBUTE_UNUSED; |
252b5132 | 1993 | { |
30667bf3 AM |
1994 | if (! (h->plt.refcount > 0 |
1995 | && (h->root.type == bfd_link_hash_defined | |
1996 | || h->root.type == bfd_link_hash_defweak) | |
1997 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)) | |
252b5132 | 1998 | { |
30667bf3 AM |
1999 | h->plt.offset = (bfd_vma) -1; |
2000 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2001 | return true; | |
252b5132 RH |
2002 | } |
2003 | ||
74d1c347 | 2004 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
12cca0d2 | 2005 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; |
30667bf3 | 2006 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
edd21aca | 2007 | |
4dc86686 AM |
2008 | return true; |
2009 | } | |
2010 | ||
a8d02d66 AM |
2011 | /* Allocate space in the .plt for pic_call entries. */ |
2012 | ||
2013 | static boolean | |
2014 | allocate_PIC_calls (h, inf) | |
2015 | struct elf_link_hash_entry *h; | |
2016 | PTR inf; | |
2017 | { | |
2018 | struct bfd_link_info *info; | |
2019 | struct elf32_hppa_link_hash_table *htab; | |
2020 | asection *s; | |
2021 | ||
2022 | if (h->root.type == bfd_link_hash_indirect | |
2023 | || h->root.type == bfd_link_hash_warning) | |
2024 | return true; | |
2025 | ||
2026 | info = (struct bfd_link_info *) inf; | |
2027 | htab = hppa_link_hash_table (info); | |
2028 | if (((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2029 | { | |
2030 | /* Make an entry in the .plt section. */ | |
2031 | s = htab->splt; | |
2032 | h->plt.offset = s->_raw_size; | |
2033 | if (PLABEL_PLT_ENTRY_SIZE != PLT_ENTRY_SIZE | |
2034 | && ((struct elf32_hppa_link_hash_entry *) h)->plabel | |
2035 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
2036 | { | |
2037 | /* Add some extra space for the dynamic linker to use. */ | |
2038 | s->_raw_size += PLABEL_PLT_ENTRY_SIZE; | |
2039 | } | |
2040 | else | |
2041 | s->_raw_size += PLT_ENTRY_SIZE; | |
2042 | } | |
2043 | ||
2044 | return true; | |
2045 | } | |
2046 | ||
4dc86686 AM |
2047 | /* Allocate space in .plt, .got and associated reloc sections for |
2048 | global syms. */ | |
2049 | ||
2050 | static boolean | |
98ceb8ce | 2051 | allocate_dynrelocs (h, inf) |
4dc86686 AM |
2052 | struct elf_link_hash_entry *h; |
2053 | PTR inf; | |
2054 | { | |
2055 | struct bfd_link_info *info; | |
83c81bfe | 2056 | struct elf32_hppa_link_hash_table *htab; |
4dc86686 | 2057 | asection *s; |
446f2863 | 2058 | struct elf32_hppa_link_hash_entry *eh; |
98ceb8ce | 2059 | struct elf32_hppa_dyn_reloc_entry *p; |
4dc86686 | 2060 | |
73a74a62 AM |
2061 | if (h->root.type == bfd_link_hash_indirect |
2062 | || h->root.type == bfd_link_hash_warning) | |
2063 | return true; | |
2064 | ||
30667bf3 | 2065 | info = (struct bfd_link_info *) inf; |
83c81bfe | 2066 | htab = hppa_link_hash_table (info); |
ebe50bae | 2067 | if ((htab->elf.dynamic_sections_created |
4dc86686 AM |
2068 | && h->plt.refcount > 0) |
2069 | || ((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2070 | { | |
446f2863 AM |
2071 | /* Make sure this symbol is output as a dynamic symbol. |
2072 | Undefined weak syms won't yet be marked as dynamic. */ | |
2073 | if (h->dynindx == -1 | |
2074 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2075 | && h->type != STT_PARISC_MILLI | |
2076 | && !((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2077 | { | |
2078 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2079 | return false; | |
2080 | } | |
2081 | ||
a8d02d66 AM |
2082 | if (((struct elf32_hppa_link_hash_entry *) h)->pic_call) |
2083 | { | |
2084 | /* Already handled by allocate_PIC_calls. */ | |
2085 | } | |
2086 | else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
4dc86686 | 2087 | { |
3ac8354b AM |
2088 | /* Make an entry in the .plt section. */ |
2089 | s = htab->splt; | |
2090 | h->plt.offset = s->_raw_size; | |
2091 | if (PLABEL_PLT_ENTRY_SIZE != PLT_ENTRY_SIZE | |
2092 | && ((struct elf32_hppa_link_hash_entry *) h)->plabel | |
2093 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
2094 | { | |
2095 | /* Add some extra space for the dynamic linker to use. */ | |
2096 | s->_raw_size += PLABEL_PLT_ENTRY_SIZE; | |
2097 | } | |
2098 | else | |
2099 | s->_raw_size += PLT_ENTRY_SIZE; | |
2100 | ||
a8d02d66 AM |
2101 | /* We also need to make an entry in the .rela.plt section. */ |
2102 | htab->srelplt->_raw_size += sizeof (Elf32_External_Rela); | |
2103 | htab->need_plt_stub = 1; | |
4dc86686 AM |
2104 | } |
2105 | else | |
4dc86686 | 2106 | { |
3ac8354b AM |
2107 | h->plt.offset = (bfd_vma) -1; |
2108 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
4dc86686 AM |
2109 | } |
2110 | } | |
2111 | else | |
2112 | { | |
2113 | h->plt.offset = (bfd_vma) -1; | |
2114 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2115 | } | |
edd21aca | 2116 | |
4dc86686 AM |
2117 | if (h->got.refcount > 0) |
2118 | { | |
446f2863 AM |
2119 | /* Make sure this symbol is output as a dynamic symbol. |
2120 | Undefined weak syms won't yet be marked as dynamic. */ | |
2121 | if (h->dynindx == -1 | |
2122 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2123 | && h->type != STT_PARISC_MILLI) | |
2124 | { | |
2125 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2126 | return false; | |
2127 | } | |
2128 | ||
83c81bfe | 2129 | s = htab->sgot; |
4dc86686 AM |
2130 | h->got.offset = s->_raw_size; |
2131 | s->_raw_size += GOT_ENTRY_SIZE; | |
ce757d15 AM |
2132 | if (htab->elf.dynamic_sections_created |
2133 | && (info->shared | |
2134 | || (h->dynindx != -1 | |
2135 | && h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)) | |
2136 | { | |
2137 | htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
2138 | } | |
4dc86686 AM |
2139 | } |
2140 | else | |
2141 | h->got.offset = (bfd_vma) -1; | |
30667bf3 | 2142 | |
446f2863 | 2143 | eh = (struct elf32_hppa_link_hash_entry *) h; |
98ceb8ce | 2144 | if (eh->dyn_relocs == NULL) |
446f2863 | 2145 | return true; |
30667bf3 | 2146 | |
98ceb8ce AM |
2147 | /* If this is a -Bsymbolic shared link, then we need to discard all |
2148 | space allocated for dynamic pc-relative relocs against symbols | |
2149 | defined in a regular object. For the normal shared case, discard | |
2150 | space for relocs that have become local due to symbol visibility | |
2151 | changes. */ | |
2152 | if (info->shared) | |
446f2863 | 2153 | { |
98ceb8ce AM |
2154 | #if RELATIVE_DYNRELOCS |
2155 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
2156 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
2157 | || info->symbolic)) | |
446f2863 | 2158 | { |
98ceb8ce | 2159 | struct elf32_hppa_dyn_reloc_entry **pp; |
30667bf3 | 2160 | |
98ceb8ce AM |
2161 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
2162 | { | |
2163 | p->count -= p->relative_count; | |
2164 | p->relative_count = 0; | |
2165 | if (p->count == 0) | |
2166 | *pp = p->next; | |
2167 | else | |
2168 | pp = &p->next; | |
2169 | } | |
2170 | } | |
2171 | #endif | |
446f2863 | 2172 | } |
98ceb8ce | 2173 | else |
30667bf3 | 2174 | { |
98ceb8ce AM |
2175 | /* For the non-shared case, discard space for relocs against |
2176 | symbols which turn out to need copy relocs or are not | |
2177 | dynamic. */ | |
2178 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
2179 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2180 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
ebe50bae | 2181 | || (htab->elf.dynamic_sections_created |
98ceb8ce AM |
2182 | && (h->root.type == bfd_link_hash_undefweak |
2183 | || h->root.type == bfd_link_hash_undefined)))) | |
2184 | { | |
2185 | /* Make sure this symbol is output as a dynamic symbol. | |
2186 | Undefined weak syms won't yet be marked as dynamic. */ | |
2187 | if (h->dynindx == -1 | |
2188 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2189 | && h->type != STT_PARISC_MILLI) | |
2190 | { | |
2191 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2192 | return false; | |
2193 | } | |
2194 | ||
2195 | /* If that succeeded, we know we'll be keeping all the | |
2196 | relocs. */ | |
2197 | if (h->dynindx != -1) | |
2198 | goto keep; | |
2199 | } | |
446f2863 | 2200 | |
98ceb8ce AM |
2201 | eh->dyn_relocs = NULL; |
2202 | return true; | |
2203 | ||
ec338859 | 2204 | keep: ; |
30667bf3 | 2205 | } |
30667bf3 | 2206 | |
98ceb8ce AM |
2207 | /* Finally, allocate space. */ |
2208 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
30667bf3 | 2209 | { |
98ceb8ce AM |
2210 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
2211 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2212 | } |
30667bf3 AM |
2213 | |
2214 | return true; | |
2215 | } | |
30667bf3 | 2216 | |
d5c73c2f AM |
2217 | /* This function is called via elf_link_hash_traverse to force |
2218 | millicode symbols local so they do not end up as globals in the | |
2219 | dynamic symbol table. We ought to be able to do this in | |
2220 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2221 | for all dynamic symbols. Arguably, this is a bug in | |
2222 | elf_adjust_dynamic_symbol. */ | |
2223 | ||
2224 | static boolean | |
2225 | clobber_millicode_symbols (h, info) | |
2226 | struct elf_link_hash_entry *h; | |
2227 | struct bfd_link_info *info; | |
2228 | { | |
8dea1268 AM |
2229 | /* We only want to remove these from the dynamic symbol table. |
2230 | Therefore we do not leave ELF_LINK_FORCED_LOCAL set. */ | |
d5c73c2f | 2231 | if (h->type == STT_PARISC_MILLI) |
e0522e89 AM |
2232 | { |
2233 | unsigned short oldflags = h->elf_link_hash_flags; | |
2234 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL; | |
2235 | elf32_hppa_hide_symbol (info, h); | |
2236 | h->elf_link_hash_flags &= ~ELF_LINK_FORCED_LOCAL; | |
2237 | h->elf_link_hash_flags |= oldflags & ELF_LINK_FORCED_LOCAL; | |
2238 | } | |
d5c73c2f AM |
2239 | return true; |
2240 | } | |
2241 | ||
98ceb8ce AM |
2242 | /* Find any dynamic relocs that apply to read-only sections. */ |
2243 | ||
2244 | static boolean | |
2245 | readonly_dynrelocs (h, inf) | |
2246 | struct elf_link_hash_entry *h; | |
2247 | PTR inf; | |
2248 | { | |
2249 | struct elf32_hppa_link_hash_entry *eh; | |
2250 | struct elf32_hppa_dyn_reloc_entry *p; | |
2251 | ||
2252 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
2253 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2254 | { | |
2255 | asection *s = p->sec->output_section; | |
2256 | ||
2257 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2258 | { | |
2259 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2260 | ||
2261 | info->flags |= DF_TEXTREL; | |
2262 | ||
2263 | /* Not an error, just cut short the traversal. */ | |
2264 | return false; | |
2265 | } | |
2266 | } | |
2267 | return true; | |
2268 | } | |
2269 | ||
30667bf3 AM |
2270 | /* Set the sizes of the dynamic sections. */ |
2271 | ||
2272 | static boolean | |
2273 | elf32_hppa_size_dynamic_sections (output_bfd, info) | |
98ceb8ce | 2274 | bfd *output_bfd ATTRIBUTE_UNUSED; |
30667bf3 AM |
2275 | struct bfd_link_info *info; |
2276 | { | |
83c81bfe | 2277 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2278 | bfd *dynobj; |
98ceb8ce | 2279 | bfd *ibfd; |
30667bf3 AM |
2280 | asection *s; |
2281 | boolean relocs; | |
30667bf3 | 2282 | |
83c81bfe | 2283 | htab = hppa_link_hash_table (info); |
ebe50bae | 2284 | dynobj = htab->elf.dynobj; |
49e9d0d3 AM |
2285 | if (dynobj == NULL) |
2286 | abort (); | |
30667bf3 | 2287 | |
ebe50bae | 2288 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2289 | { |
2290 | /* Set the contents of the .interp section to the interpreter. */ | |
2291 | if (! info->shared) | |
2292 | { | |
2293 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
49e9d0d3 AM |
2294 | if (s == NULL) |
2295 | abort (); | |
30667bf3 AM |
2296 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; |
2297 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2298 | } | |
74d1c347 | 2299 | |
d5c73c2f | 2300 | /* Force millicode symbols local. */ |
ebe50bae | 2301 | elf_link_hash_traverse (&htab->elf, |
d5c73c2f AM |
2302 | clobber_millicode_symbols, |
2303 | info); | |
68fb2e56 AM |
2304 | } |
2305 | else | |
2306 | { | |
2307 | /* Run through the function symbols, looking for any that are | |
a8d02d66 AM |
2308 | PIC, and mark them as needing .plt entries so that %r19 will |
2309 | be set up. */ | |
68fb2e56 | 2310 | if (! info->shared) |
a8d02d66 | 2311 | elf_link_hash_traverse (&htab->elf, mark_PIC_calls, (PTR) info); |
68fb2e56 | 2312 | } |
d5c73c2f | 2313 | |
98ceb8ce AM |
2314 | /* Set up .got and .plt offsets for local syms, and space for local |
2315 | dynamic relocs. */ | |
2316 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
68fb2e56 AM |
2317 | { |
2318 | bfd_signed_vma *local_got; | |
2319 | bfd_signed_vma *end_local_got; | |
2320 | bfd_signed_vma *local_plt; | |
2321 | bfd_signed_vma *end_local_plt; | |
2322 | bfd_size_type locsymcount; | |
2323 | Elf_Internal_Shdr *symtab_hdr; | |
2324 | asection *srel; | |
74d1c347 | 2325 | |
98ceb8ce | 2326 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2327 | continue; |
4dc86686 | 2328 | |
98ceb8ce AM |
2329 | for (s = ibfd->sections; s != NULL; s = s->next) |
2330 | { | |
ec338859 | 2331 | struct elf32_hppa_dyn_reloc_entry *p; |
98ceb8ce | 2332 | |
ec338859 AM |
2333 | for (p = ((struct elf32_hppa_dyn_reloc_entry *) |
2334 | elf_section_data (s)->local_dynrel); | |
2335 | p != NULL; | |
2336 | p = p->next) | |
98ceb8ce | 2337 | { |
ec338859 AM |
2338 | if (!bfd_is_abs_section (p->sec) |
2339 | && bfd_is_abs_section (p->sec->output_section)) | |
2340 | { | |
2341 | /* Input section has been discarded, either because | |
2342 | it is a copy of a linkonce section or due to | |
2343 | linker script /DISCARD/, so we'll be discarding | |
2344 | the relocs too. */ | |
2345 | } | |
2346 | else | |
2347 | { | |
2348 | srel = elf_section_data (p->sec)->sreloc; | |
2349 | srel->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
2350 | } | |
98ceb8ce AM |
2351 | } |
2352 | } | |
2353 | ||
2354 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2355 | if (!local_got) |
2356 | continue; | |
74d1c347 | 2357 | |
98ceb8ce | 2358 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2359 | locsymcount = symtab_hdr->sh_info; |
2360 | end_local_got = local_got + locsymcount; | |
83c81bfe AM |
2361 | s = htab->sgot; |
2362 | srel = htab->srelgot; | |
68fb2e56 AM |
2363 | for (; local_got < end_local_got; ++local_got) |
2364 | { | |
2365 | if (*local_got > 0) | |
4dc86686 | 2366 | { |
68fb2e56 AM |
2367 | *local_got = s->_raw_size; |
2368 | s->_raw_size += GOT_ENTRY_SIZE; | |
2369 | if (info->shared) | |
2370 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
4dc86686 | 2371 | } |
68fb2e56 AM |
2372 | else |
2373 | *local_got = (bfd_vma) -1; | |
2374 | } | |
74d1c347 | 2375 | |
68fb2e56 AM |
2376 | local_plt = end_local_got; |
2377 | end_local_plt = local_plt + locsymcount; | |
ebe50bae | 2378 | if (! htab->elf.dynamic_sections_created) |
68fb2e56 AM |
2379 | { |
2380 | /* Won't be used, but be safe. */ | |
2381 | for (; local_plt < end_local_plt; ++local_plt) | |
2382 | *local_plt = (bfd_vma) -1; | |
2383 | } | |
2384 | else | |
2385 | { | |
83c81bfe AM |
2386 | s = htab->splt; |
2387 | srel = htab->srelplt; | |
74d1c347 AM |
2388 | for (; local_plt < end_local_plt; ++local_plt) |
2389 | { | |
2390 | if (*local_plt > 0) | |
2391 | { | |
74d1c347 AM |
2392 | *local_plt = s->_raw_size; |
2393 | s->_raw_size += PLT_ENTRY_SIZE; | |
2394 | if (info->shared) | |
4dc86686 | 2395 | srel->_raw_size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2396 | } |
2397 | else | |
2398 | *local_plt = (bfd_vma) -1; | |
2399 | } | |
2400 | } | |
30667bf3 | 2401 | } |
30667bf3 | 2402 | |
a8d02d66 AM |
2403 | if (! info->shared) |
2404 | elf_link_hash_traverse (&htab->elf, allocate_PIC_calls, (PTR) info); | |
2405 | ||
98ceb8ce AM |
2406 | /* Allocate global sym .plt and .got entries, and space for global |
2407 | sym dynamic relocs. */ | |
ebe50bae | 2408 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); |
30667bf3 AM |
2409 | |
2410 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2411 | determined the sizes of the various dynamic sections. Allocate | |
2412 | memory for them. */ | |
2413 | relocs = false; | |
30667bf3 AM |
2414 | for (s = dynobj->sections; s != NULL; s = s->next) |
2415 | { | |
30667bf3 AM |
2416 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2417 | continue; | |
2418 | ||
83c81bfe | 2419 | if (s == htab->splt) |
68fb2e56 | 2420 | { |
83c81bfe | 2421 | if (htab->need_plt_stub) |
68fb2e56 AM |
2422 | { |
2423 | /* Make space for the plt stub at the end of the .plt | |
2424 | section. We want this stub right at the end, up | |
2425 | against the .got section. */ | |
83c81bfe | 2426 | int gotalign = bfd_section_alignment (dynobj, htab->sgot); |
68fb2e56 AM |
2427 | int pltalign = bfd_section_alignment (dynobj, s); |
2428 | bfd_size_type mask; | |
30667bf3 | 2429 | |
68fb2e56 AM |
2430 | if (gotalign > pltalign) |
2431 | bfd_set_section_alignment (dynobj, s, gotalign); | |
2432 | mask = ((bfd_size_type) 1 << gotalign) - 1; | |
2433 | s->_raw_size = (s->_raw_size + sizeof (plt_stub) + mask) & ~mask; | |
2434 | } | |
2435 | } | |
83c81bfe | 2436 | else if (s == htab->sgot) |
68fb2e56 AM |
2437 | ; |
2438 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) | |
30667bf3 AM |
2439 | { |
2440 | if (s->_raw_size != 0) | |
2441 | { | |
4e12ff7f AM |
2442 | /* Remember whether there are any reloc sections other |
2443 | than .rela.plt. */ | |
2444 | if (s != htab->srelplt) | |
2445 | relocs = true; | |
47d89dba | 2446 | |
30667bf3 AM |
2447 | /* We use the reloc_count field as a counter if we need |
2448 | to copy relocs into the output file. */ | |
2449 | s->reloc_count = 0; | |
2450 | } | |
2451 | } | |
30667bf3 AM |
2452 | else |
2453 | { | |
2454 | /* It's not one of our sections, so don't allocate space. */ | |
2455 | continue; | |
2456 | } | |
2457 | ||
2458 | if (s->_raw_size == 0) | |
2459 | { | |
2460 | /* If we don't need this section, strip it from the | |
2461 | output file. This is mostly to handle .rela.bss and | |
2462 | .rela.plt. We must create both sections in | |
2463 | create_dynamic_sections, because they must be created | |
2464 | before the linker maps input sections to output | |
2465 | sections. The linker does that before | |
2466 | adjust_dynamic_symbol is called, and it is that | |
2467 | function which decides whether anything needs to go | |
2468 | into these sections. */ | |
2469 | _bfd_strip_section_from_output (info, s); | |
2470 | continue; | |
2471 | } | |
2472 | ||
2473 | /* Allocate memory for the section contents. Zero it, because | |
2474 | we may not fill in all the reloc sections. */ | |
2475 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); | |
2476 | if (s->contents == NULL && s->_raw_size != 0) | |
2477 | return false; | |
2478 | } | |
2479 | ||
ebe50bae | 2480 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2481 | { |
2482 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2483 | actually has nothing to do with the PLT, it is how we | |
2484 | communicate the LTP value of a load module to the dynamic | |
2485 | linker. */ | |
dc810e39 AM |
2486 | #define add_dynamic_entry(TAG, VAL) \ |
2487 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
2488 | ||
2489 | if (!add_dynamic_entry (DT_PLTGOT, 0)) | |
30667bf3 AM |
2490 | return false; |
2491 | ||
2492 | /* Add some entries to the .dynamic section. We fill in the | |
2493 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2494 | must add the entries now so that we get the correct size for | |
2495 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2496 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2497 | if (!info->shared) |
30667bf3 | 2498 | { |
dc810e39 | 2499 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
30667bf3 AM |
2500 | return false; |
2501 | } | |
2502 | ||
83c81bfe | 2503 | if (htab->srelplt->_raw_size != 0) |
30667bf3 | 2504 | { |
dc810e39 AM |
2505 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
2506 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2507 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
30667bf3 AM |
2508 | return false; |
2509 | } | |
2510 | ||
2511 | if (relocs) | |
2512 | { | |
dc810e39 AM |
2513 | if (!add_dynamic_entry (DT_RELA, 0) |
2514 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2515 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
30667bf3 | 2516 | return false; |
30667bf3 | 2517 | |
98ceb8ce AM |
2518 | /* If any dynamic relocs apply to a read-only section, |
2519 | then we need a DT_TEXTREL entry. */ | |
ebe50bae | 2520 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, (PTR) info); |
98ceb8ce AM |
2521 | |
2522 | if ((info->flags & DF_TEXTREL) != 0) | |
2523 | { | |
2524 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
2525 | return false; | |
2526 | } | |
30667bf3 AM |
2527 | } |
2528 | } | |
dc810e39 | 2529 | #undef add_dynamic_entry |
30667bf3 AM |
2530 | |
2531 | return true; | |
2532 | } | |
2533 | ||
30667bf3 AM |
2534 | /* External entry points for sizing and building linker stubs. */ |
2535 | ||
2536 | /* Determine and set the size of the stub section for a final link. | |
2537 | ||
2538 | The basic idea here is to examine all the relocations looking for | |
2539 | PC-relative calls to a target that is unreachable with a "bl" | |
2540 | instruction. */ | |
2541 | ||
2542 | boolean | |
47d89dba | 2543 | elf32_hppa_size_stubs (output_bfd, stub_bfd, info, multi_subspace, group_size, |
30667bf3 | 2544 | add_stub_section, layout_sections_again) |
25f72752 | 2545 | bfd *output_bfd; |
30667bf3 | 2546 | bfd *stub_bfd; |
30667bf3 | 2547 | struct bfd_link_info *info; |
25f72752 | 2548 | boolean multi_subspace; |
47d89dba | 2549 | bfd_signed_vma group_size; |
30667bf3 AM |
2550 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); |
2551 | void (*layout_sections_again) PARAMS ((void)); | |
2552 | { | |
2553 | bfd *input_bfd; | |
2554 | asection *section; | |
25f72752 | 2555 | asection **input_list, **list; |
30667bf3 | 2556 | Elf_Internal_Sym *local_syms, **all_local_syms; |
25f72752 AM |
2557 | unsigned int bfd_indx, bfd_count; |
2558 | int top_id, top_index; | |
83c81bfe | 2559 | struct elf32_hppa_link_hash_table *htab; |
47d89dba AM |
2560 | bfd_size_type stub_group_size; |
2561 | boolean stubs_always_before_branch; | |
30667bf3 | 2562 | boolean stub_changed = 0; |
25f72752 | 2563 | boolean ret = 0; |
dc810e39 | 2564 | bfd_size_type amt; |
30667bf3 | 2565 | |
83c81bfe | 2566 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
2567 | |
2568 | /* Stash our params away. */ | |
83c81bfe AM |
2569 | htab->stub_bfd = stub_bfd; |
2570 | htab->multi_subspace = multi_subspace; | |
2571 | htab->add_stub_section = add_stub_section; | |
2572 | htab->layout_sections_again = layout_sections_again; | |
47d89dba AM |
2573 | stubs_always_before_branch = group_size < 0; |
2574 | if (group_size < 0) | |
2575 | stub_group_size = -group_size; | |
2576 | else | |
2577 | stub_group_size = group_size; | |
2578 | if (stub_group_size == 1) | |
2579 | { | |
2580 | /* Default values. */ | |
2581 | stub_group_size = 8000000; | |
83c81bfe | 2582 | if (htab->has_17bit_branch || htab->multi_subspace) |
47d89dba | 2583 | stub_group_size = 250000; |
83c81bfe | 2584 | if (htab->has_12bit_branch) |
47d89dba AM |
2585 | stub_group_size = 7812; |
2586 | } | |
30667bf3 | 2587 | |
1badb539 AM |
2588 | /* Count the number of input BFDs and find the top input section id. */ |
2589 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2590 | input_bfd != NULL; |
2591 | input_bfd = input_bfd->link_next) | |
2592 | { | |
2593 | bfd_count += 1; | |
25f72752 AM |
2594 | for (section = input_bfd->sections; |
2595 | section != NULL; | |
2596 | section = section->next) | |
2597 | { | |
2598 | if (top_id < section->id) | |
2599 | top_id = section->id; | |
2600 | } | |
30667bf3 AM |
2601 | } |
2602 | ||
dc810e39 | 2603 | amt = sizeof (struct map_stub) * (top_id + 1); |
83c81bfe AM |
2604 | htab->stub_group = (struct map_stub *) bfd_zmalloc (amt); |
2605 | if (htab->stub_group == NULL) | |
30667bf3 AM |
2606 | return false; |
2607 | ||
1badb539 AM |
2608 | /* Make a list of input sections for each output section included in |
2609 | the link. | |
2610 | ||
2611 | We can't use output_bfd->section_count here to find the top output | |
2612 | section index as some sections may have been removed, and | |
2613 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
2614 | for (section = output_bfd->sections, top_index = 0; | |
2615 | section != NULL; | |
2616 | section = section->next) | |
2617 | { | |
2618 | if (top_index < section->index) | |
2619 | top_index = section->index; | |
2620 | } | |
2621 | ||
dc810e39 AM |
2622 | amt = sizeof (asection *) * (top_index + 1); |
2623 | input_list = (asection **) bfd_malloc (amt); | |
25f72752 AM |
2624 | if (input_list == NULL) |
2625 | return false; | |
2626 | ||
1badb539 AM |
2627 | /* For sections we aren't interested in, mark their entries with a |
2628 | value we can check later. */ | |
2629 | list = input_list + top_index; | |
2630 | do | |
2631 | *list = bfd_abs_section_ptr; | |
2632 | while (list-- != input_list); | |
2633 | ||
2634 | for (section = output_bfd->sections; | |
2635 | section != NULL; | |
2636 | section = section->next) | |
2637 | { | |
47d89dba | 2638 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2639 | input_list[section->index] = NULL; |
2640 | } | |
2641 | ||
2642 | /* Now actually build the lists. */ | |
25f72752 AM |
2643 | for (input_bfd = info->input_bfds; |
2644 | input_bfd != NULL; | |
2645 | input_bfd = input_bfd->link_next) | |
2646 | { | |
2647 | for (section = input_bfd->sections; | |
2648 | section != NULL; | |
2649 | section = section->next) | |
2650 | { | |
2651 | if (section->output_section != NULL | |
1badb539 AM |
2652 | && section->output_section->owner == output_bfd |
2653 | && section->output_section->index <= top_index) | |
25f72752 AM |
2654 | { |
2655 | list = input_list + section->output_section->index; | |
1badb539 AM |
2656 | if (*list != bfd_abs_section_ptr) |
2657 | { | |
2658 | /* Steal the link_sec pointer for our list. */ | |
83c81bfe | 2659 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
1badb539 AM |
2660 | /* This happens to make the list in reverse order, |
2661 | which is what we want. */ | |
2662 | PREV_SEC (section) = *list; | |
2663 | *list = section; | |
2664 | } | |
25f72752 AM |
2665 | } |
2666 | } | |
2667 | } | |
2668 | ||
2669 | /* See whether we can group stub sections together. Grouping stub | |
2670 | sections may result in fewer stubs. More importantly, we need to | |
2671 | put all .init* and .fini* stubs at the beginning of the .init or | |
2672 | .fini output sections respectively, because glibc splits the | |
2673 | _init and _fini functions into multiple parts. Putting a stub in | |
2674 | the middle of a function is not a good idea. */ | |
a017a724 | 2675 | list = input_list + top_index; |
1badb539 | 2676 | do |
25f72752 AM |
2677 | { |
2678 | asection *tail = *list; | |
1badb539 AM |
2679 | if (tail == bfd_abs_section_ptr) |
2680 | continue; | |
25f72752 AM |
2681 | while (tail != NULL) |
2682 | { | |
2683 | asection *curr; | |
2684 | asection *prev; | |
2685 | bfd_size_type total; | |
2686 | ||
2687 | curr = tail; | |
2688 | if (tail->_cooked_size) | |
2689 | total = tail->_cooked_size; | |
2690 | else | |
2691 | total = tail->_raw_size; | |
2692 | while ((prev = PREV_SEC (curr)) != NULL | |
2693 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2694 | < stub_group_size)) |
25f72752 AM |
2695 | curr = prev; |
2696 | ||
2697 | /* OK, the size from the start of CURR to the end is less | |
2698 | than 250000 bytes and thus can be handled by one stub | |
2699 | section. (or the tail section is itself larger than | |
2700 | 250000 bytes, in which case we may be toast.) | |
2701 | We should really be keeping track of the total size of | |
2702 | stubs added here, as stubs contribute to the final output | |
2703 | section size. That's a little tricky, and this way will | |
2704 | only break if stubs added total more than 12144 bytes, or | |
2705 | 1518 long branch stubs. It seems unlikely for more than | |
2706 | 1518 different functions to be called, especially from | |
2707 | code only 250000 bytes long. */ | |
2708 | do | |
2709 | { | |
2710 | prev = PREV_SEC (tail); | |
2711 | /* Set up this stub group. */ | |
83c81bfe | 2712 | htab->stub_group[tail->id].link_sec = curr; |
25f72752 AM |
2713 | } |
2714 | while (tail != curr && (tail = prev) != NULL); | |
2715 | ||
2716 | /* But wait, there's more! Input sections up to 250000 | |
2717 | bytes before the stub section can be handled by it too. */ | |
47d89dba | 2718 | if (!stubs_always_before_branch) |
25f72752 | 2719 | { |
47d89dba AM |
2720 | total = 0; |
2721 | while (prev != NULL | |
2722 | && ((total += tail->output_offset - prev->output_offset) | |
2723 | < stub_group_size)) | |
2724 | { | |
2725 | tail = prev; | |
2726 | prev = PREV_SEC (tail); | |
83c81bfe | 2727 | htab->stub_group[tail->id].link_sec = curr; |
47d89dba | 2728 | } |
25f72752 AM |
2729 | } |
2730 | tail = prev; | |
2731 | } | |
2732 | } | |
1badb539 | 2733 | while (list-- != input_list); |
25f72752 | 2734 | free (input_list); |
1badb539 | 2735 | #undef PREV_SEC |
30667bf3 AM |
2736 | |
2737 | /* We want to read in symbol extension records only once. To do this | |
2738 | we need to read in the local symbols in parallel and save them for | |
2739 | later use; so hold pointers to the local symbols in an array. */ | |
dc810e39 AM |
2740 | amt = sizeof (Elf_Internal_Sym *) * bfd_count; |
2741 | all_local_syms = (Elf_Internal_Sym **) bfd_zmalloc (amt); | |
30667bf3 | 2742 | if (all_local_syms == NULL) |
25f72752 | 2743 | return false; |
30667bf3 AM |
2744 | |
2745 | /* Walk over all the input BFDs, swapping in local symbols. | |
2746 | If we are creating a shared library, create hash entries for the | |
2747 | export stubs. */ | |
25f72752 | 2748 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2749 | input_bfd != NULL; |
25f72752 | 2750 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2751 | { |
2752 | Elf_Internal_Shdr *symtab_hdr; | |
2753 | Elf_Internal_Sym *isym; | |
25f72752 | 2754 | Elf32_External_Sym *ext_syms, *esym, *end_sy; |
dc810e39 | 2755 | bfd_size_type sec_size; |
edd21aca | 2756 | |
252b5132 RH |
2757 | /* We'll need the symbol table in a second. */ |
2758 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2759 | if (symtab_hdr->sh_info == 0) | |
2760 | continue; | |
2761 | ||
edd21aca AM |
2762 | /* We need an array of the local symbols attached to the input bfd. |
2763 | Unfortunately, we're going to have to read & swap them in. */ | |
dc810e39 AM |
2764 | sec_size = symtab_hdr->sh_info; |
2765 | sec_size *= sizeof (Elf_Internal_Sym); | |
2766 | local_syms = (Elf_Internal_Sym *) bfd_malloc (sec_size); | |
edd21aca AM |
2767 | if (local_syms == NULL) |
2768 | { | |
2769 | goto error_ret_free_local; | |
2770 | } | |
25f72752 | 2771 | all_local_syms[bfd_indx] = local_syms; |
dc810e39 AM |
2772 | sec_size = symtab_hdr->sh_info; |
2773 | sec_size *= sizeof (Elf32_External_Sym); | |
2774 | ext_syms = (Elf32_External_Sym *) bfd_malloc (sec_size); | |
edd21aca AM |
2775 | if (ext_syms == NULL) |
2776 | { | |
2777 | goto error_ret_free_local; | |
2778 | } | |
2779 | ||
2780 | if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 2781 | || (bfd_bread (ext_syms, sec_size, input_bfd) != sec_size)) |
edd21aca AM |
2782 | { |
2783 | free (ext_syms); | |
2784 | goto error_ret_free_local; | |
2785 | } | |
2786 | ||
2787 | /* Swap the local symbols in. */ | |
2788 | isym = local_syms; | |
2789 | esym = ext_syms; | |
25f72752 | 2790 | for (end_sy = esym + symtab_hdr->sh_info; esym < end_sy; esym++, isym++) |
edd21aca AM |
2791 | bfd_elf32_swap_symbol_in (input_bfd, esym, isym); |
2792 | ||
2793 | /* Now we can free the external symbols. */ | |
2794 | free (ext_syms); | |
edd21aca | 2795 | |
83c81bfe | 2796 | if (info->shared && htab->multi_subspace) |
30667bf3 | 2797 | { |
25f72752 AM |
2798 | struct elf_link_hash_entry **sym_hashes; |
2799 | struct elf_link_hash_entry **end_hashes; | |
30667bf3 AM |
2800 | unsigned int symcount; |
2801 | ||
2802 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2803 | - symtab_hdr->sh_info); | |
25f72752 AM |
2804 | sym_hashes = elf_sym_hashes (input_bfd); |
2805 | end_hashes = sym_hashes + symcount; | |
30667bf3 AM |
2806 | |
2807 | /* Look through the global syms for functions; We need to | |
2808 | build export stubs for all globally visible functions. */ | |
25f72752 | 2809 | for (; sym_hashes < end_hashes; sym_hashes++) |
30667bf3 AM |
2810 | { |
2811 | struct elf32_hppa_link_hash_entry *hash; | |
2812 | ||
25f72752 | 2813 | hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes; |
30667bf3 AM |
2814 | |
2815 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2816 | || hash->elf.root.type == bfd_link_hash_warning) | |
2817 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2818 | hash->elf.root.u.i.link); | |
2819 | ||
2820 | /* At this point in the link, undefined syms have been | |
2821 | resolved, so we need to check that the symbol was | |
2822 | defined in this BFD. */ | |
2823 | if ((hash->elf.root.type == bfd_link_hash_defined | |
2824 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2825 | && hash->elf.type == STT_FUNC | |
2826 | && hash->elf.root.u.def.section->output_section != NULL | |
25f72752 AM |
2827 | && (hash->elf.root.u.def.section->output_section->owner |
2828 | == output_bfd) | |
30667bf3 AM |
2829 | && hash->elf.root.u.def.section->owner == input_bfd |
2830 | && (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
2831 | && !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) | |
2832 | && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT) | |
2833 | { | |
2834 | asection *sec; | |
2835 | const char *stub_name; | |
2836 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2837 | ||
2838 | sec = hash->elf.root.u.def.section; | |
2839 | stub_name = hash->elf.root.root.string; | |
83c81bfe | 2840 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
2841 | stub_name, |
2842 | false, false); | |
2843 | if (stub_entry == NULL) | |
2844 | { | |
83c81bfe | 2845 | stub_entry = hppa_add_stub (stub_name, sec, htab); |
30667bf3 AM |
2846 | if (!stub_entry) |
2847 | goto error_ret_free_local; | |
2848 | ||
2849 | stub_entry->target_value = hash->elf.root.u.def.value; | |
2850 | stub_entry->target_section = hash->elf.root.u.def.section; | |
2851 | stub_entry->stub_type = hppa_stub_export; | |
2852 | stub_entry->h = hash; | |
2853 | stub_changed = 1; | |
2854 | } | |
2855 | else | |
2856 | { | |
2857 | (*_bfd_error_handler) (_("%s: duplicate export stub %s"), | |
8f615d07 AM |
2858 | bfd_archive_filename (input_bfd), |
2859 | stub_name); | |
30667bf3 AM |
2860 | } |
2861 | } | |
2862 | } | |
30667bf3 AM |
2863 | } |
2864 | } | |
edd21aca AM |
2865 | |
2866 | while (1) | |
2867 | { | |
30667bf3 AM |
2868 | asection *stub_sec; |
2869 | ||
25f72752 | 2870 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2871 | input_bfd != NULL; |
25f72752 | 2872 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2873 | { |
2874 | Elf_Internal_Shdr *symtab_hdr; | |
2875 | ||
2876 | /* We'll need the symbol table in a second. */ | |
2877 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2878 | if (symtab_hdr->sh_info == 0) | |
2879 | continue; | |
2880 | ||
25f72752 | 2881 | local_syms = all_local_syms[bfd_indx]; |
30667bf3 AM |
2882 | |
2883 | /* Walk over each section attached to the input bfd. */ | |
2884 | for (section = input_bfd->sections; | |
2885 | section != NULL; | |
25f72752 | 2886 | section = section->next) |
30667bf3 AM |
2887 | { |
2888 | Elf_Internal_Shdr *input_rel_hdr; | |
2889 | Elf32_External_Rela *external_relocs, *erelaend, *erela; | |
2890 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; | |
2891 | ||
2892 | /* If there aren't any relocs, then there's nothing more | |
2893 | to do. */ | |
2894 | if ((section->flags & SEC_RELOC) == 0 | |
2895 | || section->reloc_count == 0) | |
2896 | continue; | |
2897 | ||
25f72752 AM |
2898 | /* If this section is a link-once section that will be |
2899 | discarded, then don't create any stubs. */ | |
2900 | if (section->output_section == NULL | |
2901 | || section->output_section->owner != output_bfd) | |
2902 | continue; | |
2903 | ||
30667bf3 | 2904 | /* Allocate space for the external relocations. */ |
dc810e39 AM |
2905 | amt = section->reloc_count; |
2906 | amt *= sizeof (Elf32_External_Rela); | |
2907 | external_relocs = (Elf32_External_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
2908 | if (external_relocs == NULL) |
2909 | { | |
2910 | goto error_ret_free_local; | |
2911 | } | |
2912 | ||
2913 | /* Likewise for the internal relocations. */ | |
dc810e39 AM |
2914 | amt = section->reloc_count; |
2915 | amt *= sizeof (Elf_Internal_Rela); | |
2916 | internal_relocs = (Elf_Internal_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
2917 | if (internal_relocs == NULL) |
2918 | { | |
2919 | free (external_relocs); | |
2920 | goto error_ret_free_local; | |
2921 | } | |
2922 | ||
2923 | /* Read in the external relocs. */ | |
2924 | input_rel_hdr = &elf_section_data (section)->rel_hdr; | |
2925 | if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 2926 | || bfd_bread (external_relocs, |
30667bf3 AM |
2927 | input_rel_hdr->sh_size, |
2928 | input_bfd) != input_rel_hdr->sh_size) | |
2929 | { | |
2930 | free (external_relocs); | |
2931 | error_ret_free_internal: | |
2932 | free (internal_relocs); | |
2933 | goto error_ret_free_local; | |
2934 | } | |
2935 | ||
2936 | /* Swap in the relocs. */ | |
2937 | erela = external_relocs; | |
2938 | erelaend = erela + section->reloc_count; | |
2939 | irela = internal_relocs; | |
2940 | for (; erela < erelaend; erela++, irela++) | |
2941 | bfd_elf32_swap_reloca_in (input_bfd, erela, irela); | |
2942 | ||
2943 | /* We're done with the external relocs, free them. */ | |
2944 | free (external_relocs); | |
2945 | ||
2946 | /* Now examine each relocation. */ | |
2947 | irela = internal_relocs; | |
2948 | irelaend = irela + section->reloc_count; | |
2949 | for (; irela < irelaend; irela++) | |
2950 | { | |
2951 | unsigned int r_type, r_indx; | |
2952 | enum elf32_hppa_stub_type stub_type; | |
2953 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2954 | asection *sym_sec; | |
2955 | bfd_vma sym_value; | |
2956 | bfd_vma destination; | |
2957 | struct elf32_hppa_link_hash_entry *hash; | |
2958 | char *stub_name; | |
25f72752 | 2959 | const asection *id_sec; |
30667bf3 AM |
2960 | |
2961 | r_type = ELF32_R_TYPE (irela->r_info); | |
2962 | r_indx = ELF32_R_SYM (irela->r_info); | |
2963 | ||
2964 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2965 | { | |
2966 | bfd_set_error (bfd_error_bad_value); | |
2967 | goto error_ret_free_internal; | |
2968 | } | |
2969 | ||
2970 | /* Only look for stubs on call instructions. */ | |
2971 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
2972 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
2973 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
2974 | continue; | |
2975 | ||
2976 | /* Now determine the call target, its name, value, | |
2977 | section. */ | |
2978 | sym_sec = NULL; | |
2979 | sym_value = 0; | |
2980 | destination = 0; | |
2981 | hash = NULL; | |
2982 | if (r_indx < symtab_hdr->sh_info) | |
2983 | { | |
2984 | /* It's a local symbol. */ | |
2985 | Elf_Internal_Sym *sym; | |
2986 | Elf_Internal_Shdr *hdr; | |
2987 | ||
2988 | sym = local_syms + r_indx; | |
2989 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
2990 | sym_sec = hdr->bfd_section; | |
2991 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
2992 | sym_value = sym->st_value; | |
2993 | destination = (sym_value + irela->r_addend | |
2994 | + sym_sec->output_offset | |
2995 | + sym_sec->output_section->vma); | |
2996 | } | |
2997 | else | |
2998 | { | |
2999 | /* It's an external symbol. */ | |
3000 | int e_indx; | |
3001 | ||
3002 | e_indx = r_indx - symtab_hdr->sh_info; | |
3003 | hash = ((struct elf32_hppa_link_hash_entry *) | |
3004 | elf_sym_hashes (input_bfd)[e_indx]); | |
3005 | ||
3006 | while (hash->elf.root.type == bfd_link_hash_indirect | |
3007 | || hash->elf.root.type == bfd_link_hash_warning) | |
3008 | hash = ((struct elf32_hppa_link_hash_entry *) | |
3009 | hash->elf.root.u.i.link); | |
3010 | ||
3011 | if (hash->elf.root.type == bfd_link_hash_defined | |
3012 | || hash->elf.root.type == bfd_link_hash_defweak) | |
3013 | { | |
3014 | sym_sec = hash->elf.root.u.def.section; | |
3015 | sym_value = hash->elf.root.u.def.value; | |
3016 | if (sym_sec->output_section != NULL) | |
3017 | destination = (sym_value + irela->r_addend | |
3018 | + sym_sec->output_offset | |
3019 | + sym_sec->output_section->vma); | |
3020 | } | |
3021 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
3022 | { | |
3023 | if (! info->shared) | |
3024 | continue; | |
3025 | } | |
3026 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
3027 | { | |
3028 | if (! (info->shared | |
3029 | && !info->no_undefined | |
3030 | && (ELF_ST_VISIBILITY (hash->elf.other) | |
3031 | == STV_DEFAULT))) | |
3032 | continue; | |
3033 | } | |
3034 | else | |
3035 | { | |
3036 | bfd_set_error (bfd_error_bad_value); | |
3037 | goto error_ret_free_internal; | |
3038 | } | |
3039 | } | |
3040 | ||
3041 | /* Determine what (if any) linker stub is needed. */ | |
3042 | stub_type = hppa_type_of_stub (section, irela, hash, | |
3043 | destination); | |
3044 | if (stub_type == hppa_stub_none) | |
3045 | continue; | |
3046 | ||
25f72752 | 3047 | /* Support for grouping stub sections. */ |
83c81bfe | 3048 | id_sec = htab->stub_group[section->id].link_sec; |
25f72752 | 3049 | |
30667bf3 | 3050 | /* Get the name of this stub. */ |
25f72752 | 3051 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela); |
30667bf3 AM |
3052 | if (!stub_name) |
3053 | goto error_ret_free_internal; | |
3054 | ||
83c81bfe | 3055 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
3056 | stub_name, |
3057 | false, false); | |
3058 | if (stub_entry != NULL) | |
3059 | { | |
3060 | /* The proper stub has already been created. */ | |
3061 | free (stub_name); | |
3062 | continue; | |
3063 | } | |
3064 | ||
83c81bfe | 3065 | stub_entry = hppa_add_stub (stub_name, section, htab); |
30667bf3 AM |
3066 | if (stub_entry == NULL) |
3067 | { | |
3068 | free (stub_name); | |
3069 | goto error_ret_free_local; | |
3070 | } | |
3071 | ||
3072 | stub_entry->target_value = sym_value; | |
3073 | stub_entry->target_section = sym_sec; | |
3074 | stub_entry->stub_type = stub_type; | |
3075 | if (info->shared) | |
3076 | { | |
3077 | if (stub_type == hppa_stub_import) | |
3078 | stub_entry->stub_type = hppa_stub_import_shared; | |
98ceb8ce | 3079 | else if (stub_type == hppa_stub_long_branch) |
30667bf3 AM |
3080 | stub_entry->stub_type = hppa_stub_long_branch_shared; |
3081 | } | |
3082 | stub_entry->h = hash; | |
3083 | stub_changed = 1; | |
3084 | } | |
3085 | ||
3086 | /* We're done with the internal relocs, free them. */ | |
3087 | free (internal_relocs); | |
3088 | } | |
3089 | } | |
3090 | ||
3091 | if (!stub_changed) | |
3092 | break; | |
3093 | ||
3094 | /* OK, we've added some stubs. Find out the new size of the | |
3095 | stub sections. */ | |
83c81bfe | 3096 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3097 | stub_sec != NULL; |
3098 | stub_sec = stub_sec->next) | |
3099 | { | |
74d1c347 AM |
3100 | stub_sec->_raw_size = 0; |
3101 | stub_sec->_cooked_size = 0; | |
3102 | } | |
74d1c347 | 3103 | |
83c81bfe | 3104 | bfd_hash_traverse (&htab->stub_hash_table, hppa_size_one_stub, htab); |
74d1c347 | 3105 | |
30667bf3 | 3106 | /* Ask the linker to do its stuff. */ |
83c81bfe | 3107 | (*htab->layout_sections_again) (); |
30667bf3 AM |
3108 | stub_changed = 0; |
3109 | } | |
3110 | ||
25f72752 | 3111 | ret = 1; |
30667bf3 AM |
3112 | |
3113 | error_ret_free_local: | |
25f72752 AM |
3114 | while (bfd_count-- > 0) |
3115 | if (all_local_syms[bfd_count]) | |
3116 | free (all_local_syms[bfd_count]); | |
30667bf3 AM |
3117 | free (all_local_syms); |
3118 | ||
25f72752 | 3119 | return ret; |
30667bf3 AM |
3120 | } |
3121 | ||
30667bf3 AM |
3122 | /* For a final link, this function is called after we have sized the |
3123 | stubs to provide a value for __gp. */ | |
3124 | ||
3125 | boolean | |
3126 | elf32_hppa_set_gp (abfd, info) | |
3127 | bfd *abfd; | |
3128 | struct bfd_link_info *info; | |
3129 | { | |
83c81bfe | 3130 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3131 | struct elf_link_hash_entry *h; |
3132 | asection *sec; | |
3133 | bfd_vma gp_val; | |
3134 | ||
83c81bfe | 3135 | htab = hppa_link_hash_table (info); |
ebe50bae | 3136 | h = elf_link_hash_lookup (&htab->elf, "$global$", false, false, false); |
30667bf3 | 3137 | |
df8634e3 AM |
3138 | if (h != NULL |
3139 | && (h->root.type == bfd_link_hash_defined | |
3140 | || h->root.type == bfd_link_hash_defweak)) | |
30667bf3 AM |
3141 | { |
3142 | gp_val = h->root.u.def.value; | |
3143 | sec = h->root.u.def.section; | |
3144 | } | |
3145 | else | |
3146 | { | |
74d1c347 AM |
3147 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
3148 | or .data, if these sections exist. In the case of choosing | |
3149 | .plt try to make the LTP ideal for addressing anywhere in the | |
3150 | .plt or .got with a 14 bit signed offset. Typically, the end | |
3151 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
3152 | if either the .plt or .got is larger than 0x2000. If both | |
3153 | the .plt and .got are smaller than 0x2000, choose the end of | |
3154 | the .plt section. */ | |
3155 | ||
83c81bfe | 3156 | sec = htab->splt; |
74d1c347 | 3157 | if (sec != NULL) |
30667bf3 | 3158 | { |
74d1c347 AM |
3159 | gp_val = sec->_raw_size; |
3160 | if (gp_val > 0x2000 | |
83c81bfe | 3161 | || (htab->sgot && htab->sgot->_raw_size > 0x2000)) |
74d1c347 AM |
3162 | { |
3163 | gp_val = 0x2000; | |
3164 | } | |
3165 | } | |
3166 | else | |
3167 | { | |
3168 | gp_val = 0; | |
83c81bfe | 3169 | sec = htab->sgot; |
74d1c347 AM |
3170 | if (sec != NULL) |
3171 | { | |
3172 | /* We know we don't have a .plt. If .got is large, | |
3173 | offset our LTP. */ | |
3174 | if (sec->_raw_size > 0x2000) | |
3175 | gp_val = 0x2000; | |
3176 | } | |
3177 | else | |
3178 | { | |
3179 | /* No .plt or .got. Who cares what the LTP is? */ | |
3180 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3181 | } | |
30667bf3 | 3182 | } |
df8634e3 AM |
3183 | |
3184 | if (h != NULL) | |
3185 | { | |
3186 | h->root.type = bfd_link_hash_defined; | |
3187 | h->root.u.def.value = gp_val; | |
3188 | if (sec != NULL) | |
3189 | h->root.u.def.section = sec; | |
3190 | else | |
3191 | h->root.u.def.section = bfd_abs_section_ptr; | |
3192 | } | |
30667bf3 AM |
3193 | } |
3194 | ||
b32b5d6e | 3195 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
3196 | gp_val += sec->output_section->vma + sec->output_offset; |
3197 | ||
3198 | elf_gp (abfd) = gp_val; | |
30667bf3 AM |
3199 | return true; |
3200 | } | |
3201 | ||
30667bf3 AM |
3202 | /* Build all the stubs associated with the current output file. The |
3203 | stubs are kept in a hash table attached to the main linker hash | |
3204 | table. We also set up the .plt entries for statically linked PIC | |
3205 | functions here. This function is called via hppaelf_finish in the | |
3206 | linker. */ | |
3207 | ||
3208 | boolean | |
3209 | elf32_hppa_build_stubs (info) | |
3210 | struct bfd_link_info *info; | |
3211 | { | |
3212 | asection *stub_sec; | |
3213 | struct bfd_hash_table *table; | |
83c81bfe | 3214 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3215 | |
83c81bfe | 3216 | htab = hppa_link_hash_table (info); |
30667bf3 | 3217 | |
83c81bfe | 3218 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3219 | stub_sec != NULL; |
3220 | stub_sec = stub_sec->next) | |
3221 | { | |
dc810e39 | 3222 | bfd_size_type size; |
30667bf3 AM |
3223 | |
3224 | /* Allocate memory to hold the linker stubs. */ | |
74d1c347 | 3225 | size = stub_sec->_raw_size; |
83c81bfe | 3226 | stub_sec->contents = (unsigned char *) bfd_zalloc (htab->stub_bfd, size); |
30667bf3 AM |
3227 | if (stub_sec->contents == NULL && size != 0) |
3228 | return false; | |
74d1c347 | 3229 | stub_sec->_raw_size = 0; |
30667bf3 AM |
3230 | } |
3231 | ||
3232 | /* Build the stubs as directed by the stub hash table. */ | |
83c81bfe | 3233 | table = &htab->stub_hash_table; |
30667bf3 AM |
3234 | bfd_hash_traverse (table, hppa_build_one_stub, info); |
3235 | ||
3236 | return true; | |
3237 | } | |
3238 | ||
c46b7515 AM |
3239 | /* Perform a final link. */ |
3240 | ||
3241 | static boolean | |
3242 | elf32_hppa_final_link (abfd, info) | |
3243 | bfd *abfd; | |
3244 | struct bfd_link_info *info; | |
3245 | { | |
3246 | asection *s; | |
3247 | ||
4dc86686 AM |
3248 | /* Invoke the regular ELF linker to do all the work. */ |
3249 | if (!bfd_elf32_bfd_final_link (abfd, info)) | |
c46b7515 AM |
3250 | return false; |
3251 | ||
3252 | /* If we're producing a final executable, sort the contents of the | |
3253 | unwind section. Magic section names, but this is much safer than | |
3254 | having elf32_hppa_relocate_section remember where SEGREL32 relocs | |
3255 | occurred. Consider what happens if someone inept creates a | |
3256 | linker script that puts unwind information in .text. */ | |
3257 | s = bfd_get_section_by_name (abfd, ".PARISC.unwind"); | |
3258 | if (s != NULL) | |
3259 | { | |
3260 | bfd_size_type size; | |
3261 | char *contents; | |
3262 | ||
3263 | size = s->_raw_size; | |
3264 | contents = bfd_malloc (size); | |
3265 | if (contents == NULL) | |
3266 | return false; | |
3267 | ||
3268 | if (! bfd_get_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3269 | return false; | |
3270 | ||
dc810e39 | 3271 | qsort (contents, (size_t) (size / 16), 16, hppa_unwind_entry_compare); |
c46b7515 AM |
3272 | |
3273 | if (! bfd_set_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3274 | return false; | |
3275 | } | |
3276 | return true; | |
3277 | } | |
3278 | ||
3279 | /* Record the lowest address for the data and text segments. */ | |
3280 | ||
3281 | static void | |
3282 | hppa_record_segment_addr (abfd, section, data) | |
3283 | bfd *abfd ATTRIBUTE_UNUSED; | |
3284 | asection *section; | |
3285 | PTR data; | |
3286 | { | |
83c81bfe | 3287 | struct elf32_hppa_link_hash_table *htab; |
c46b7515 | 3288 | |
83c81bfe | 3289 | htab = (struct elf32_hppa_link_hash_table *) data; |
c46b7515 AM |
3290 | |
3291 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3292 | { | |
3293 | bfd_vma value = section->vma - section->filepos; | |
3294 | ||
3295 | if ((section->flags & SEC_READONLY) != 0) | |
3296 | { | |
83c81bfe AM |
3297 | if (value < htab->text_segment_base) |
3298 | htab->text_segment_base = value; | |
c46b7515 AM |
3299 | } |
3300 | else | |
3301 | { | |
83c81bfe AM |
3302 | if (value < htab->data_segment_base) |
3303 | htab->data_segment_base = value; | |
c46b7515 AM |
3304 | } |
3305 | } | |
3306 | } | |
3307 | ||
30667bf3 AM |
3308 | /* Perform a relocation as part of a final link. */ |
3309 | ||
3310 | static bfd_reloc_status_type | |
83c81bfe | 3311 | final_link_relocate (input_section, contents, rel, value, htab, sym_sec, h) |
30667bf3 AM |
3312 | asection *input_section; |
3313 | bfd_byte *contents; | |
3314 | const Elf_Internal_Rela *rel; | |
3315 | bfd_vma value; | |
83c81bfe | 3316 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3317 | asection *sym_sec; |
3318 | struct elf32_hppa_link_hash_entry *h; | |
3319 | { | |
3320 | int insn; | |
3321 | unsigned int r_type = ELF32_R_TYPE (rel->r_info); | |
3322 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; | |
3323 | int r_format = howto->bitsize; | |
3324 | enum hppa_reloc_field_selector_type_alt r_field; | |
3325 | bfd *input_bfd = input_section->owner; | |
3326 | bfd_vma offset = rel->r_offset; | |
3327 | bfd_vma max_branch_offset = 0; | |
3328 | bfd_byte *hit_data = contents + offset; | |
3329 | bfd_signed_vma addend = rel->r_addend; | |
3330 | bfd_vma location; | |
3331 | struct elf32_hppa_stub_hash_entry *stub_entry = NULL; | |
3332 | int val; | |
3333 | ||
3334 | if (r_type == R_PARISC_NONE) | |
3335 | return bfd_reloc_ok; | |
3336 | ||
3337 | insn = bfd_get_32 (input_bfd, hit_data); | |
3338 | ||
3339 | /* Find out where we are and where we're going. */ | |
3340 | location = (offset + | |
3341 | input_section->output_offset + | |
3342 | input_section->output_section->vma); | |
3343 | ||
3344 | switch (r_type) | |
3345 | { | |
3346 | case R_PARISC_PCREL12F: | |
3347 | case R_PARISC_PCREL17F: | |
3348 | case R_PARISC_PCREL22F: | |
3349 | /* If this is a call to a function defined in another dynamic | |
3350 | library, or if it is a call to a PIC function in the same | |
74d1c347 AM |
3351 | object, or if this is a shared link and it is a call to a |
3352 | weak symbol which may or may not be in the same object, then | |
3353 | find the import stub in the stub hash. */ | |
30667bf3 AM |
3354 | if (sym_sec == NULL |
3355 | || sym_sec->output_section == NULL | |
12cca0d2 AM |
3356 | || (h != NULL |
3357 | && ((h->maybe_pic_call | |
3358 | && !(input_section->flags & SEC_HAS_GOT_REF)) | |
3359 | || (h->elf.root.type == bfd_link_hash_defweak | |
3360 | && h->elf.dynindx != -1 | |
3361 | && h->elf.plt.offset != (bfd_vma) -1)))) | |
30667bf3 AM |
3362 | { |
3363 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3364 | h, rel, htab); |
30667bf3 AM |
3365 | if (stub_entry != NULL) |
3366 | { | |
3367 | value = (stub_entry->stub_offset | |
3368 | + stub_entry->stub_sec->output_offset | |
3369 | + stub_entry->stub_sec->output_section->vma); | |
3370 | addend = 0; | |
3371 | } | |
3372 | else if (sym_sec == NULL && h != NULL | |
3373 | && h->elf.root.type == bfd_link_hash_undefweak) | |
3374 | { | |
db20fd76 AM |
3375 | /* It's OK if undefined weak. Calls to undefined weak |
3376 | symbols behave as if the "called" function | |
3377 | immediately returns. We can thus call to a weak | |
3378 | function without first checking whether the function | |
3379 | is defined. */ | |
30667bf3 | 3380 | value = location; |
db20fd76 | 3381 | addend = 8; |
30667bf3 AM |
3382 | } |
3383 | else | |
3384 | return bfd_reloc_notsupported; | |
3385 | } | |
3386 | /* Fall thru. */ | |
3387 | ||
3388 | case R_PARISC_PCREL21L: | |
3389 | case R_PARISC_PCREL17C: | |
3390 | case R_PARISC_PCREL17R: | |
3391 | case R_PARISC_PCREL14R: | |
3392 | case R_PARISC_PCREL14F: | |
3393 | /* Make it a pc relative offset. */ | |
3394 | value -= location; | |
3395 | addend -= 8; | |
3396 | break; | |
3397 | ||
3398 | case R_PARISC_DPREL21L: | |
3399 | case R_PARISC_DPREL14R: | |
3400 | case R_PARISC_DPREL14F: | |
3401 | /* For all the DP relative relocations, we need to examine the symbol's | |
3402 | section. If it's a code section, then "data pointer relative" makes | |
3403 | no sense. In that case we don't adjust the "value", and for 21 bit | |
3404 | addil instructions, we change the source addend register from %dp to | |
3405 | %r0. This situation commonly arises when a variable's "constness" | |
3406 | is declared differently from the way the variable is defined. For | |
3407 | instance: "extern int foo" with foo defined as "const int foo". */ | |
3408 | if (sym_sec == NULL) | |
3409 | break; | |
3410 | if ((sym_sec->flags & SEC_CODE) != 0) | |
3411 | { | |
3412 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3413 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3414 | { | |
3415 | insn &= ~ (0x1f << 21); | |
74d1c347 | 3416 | #if 1 /* debug them. */ |
30667bf3 AM |
3417 | (*_bfd_error_handler) |
3418 | (_("%s(%s+0x%lx): fixing %s"), | |
8f615d07 | 3419 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3420 | input_section->name, |
3421 | (long) rel->r_offset, | |
3422 | howto->name); | |
3423 | #endif | |
3424 | } | |
3425 | /* Now try to make things easy for the dynamic linker. */ | |
3426 | ||
3427 | break; | |
3428 | } | |
74d1c347 | 3429 | /* Fall thru. */ |
30667bf3 AM |
3430 | |
3431 | case R_PARISC_DLTIND21L: | |
3432 | case R_PARISC_DLTIND14R: | |
3433 | case R_PARISC_DLTIND14F: | |
3434 | value -= elf_gp (input_section->output_section->owner); | |
3435 | break; | |
3436 | ||
c46b7515 AM |
3437 | case R_PARISC_SEGREL32: |
3438 | if ((sym_sec->flags & SEC_CODE) != 0) | |
83c81bfe | 3439 | value -= htab->text_segment_base; |
c46b7515 | 3440 | else |
83c81bfe | 3441 | value -= htab->data_segment_base; |
c46b7515 AM |
3442 | break; |
3443 | ||
30667bf3 AM |
3444 | default: |
3445 | break; | |
3446 | } | |
3447 | ||
3448 | switch (r_type) | |
3449 | { | |
3450 | case R_PARISC_DIR32: | |
47d89dba | 3451 | case R_PARISC_DIR14F: |
30667bf3 AM |
3452 | case R_PARISC_DIR17F: |
3453 | case R_PARISC_PCREL17C: | |
3454 | case R_PARISC_PCREL14F: | |
3455 | case R_PARISC_DPREL14F: | |
3456 | case R_PARISC_PLABEL32: | |
3457 | case R_PARISC_DLTIND14F: | |
3458 | case R_PARISC_SEGBASE: | |
3459 | case R_PARISC_SEGREL32: | |
3460 | r_field = e_fsel; | |
3461 | break; | |
3462 | ||
3463 | case R_PARISC_DIR21L: | |
3464 | case R_PARISC_PCREL21L: | |
3465 | case R_PARISC_DPREL21L: | |
3466 | case R_PARISC_PLABEL21L: | |
3467 | case R_PARISC_DLTIND21L: | |
3468 | r_field = e_lrsel; | |
3469 | break; | |
3470 | ||
3471 | case R_PARISC_DIR17R: | |
3472 | case R_PARISC_PCREL17R: | |
3473 | case R_PARISC_DIR14R: | |
3474 | case R_PARISC_PCREL14R: | |
3475 | case R_PARISC_DPREL14R: | |
3476 | case R_PARISC_PLABEL14R: | |
3477 | case R_PARISC_DLTIND14R: | |
3478 | r_field = e_rrsel; | |
3479 | break; | |
3480 | ||
3481 | case R_PARISC_PCREL12F: | |
3482 | case R_PARISC_PCREL17F: | |
3483 | case R_PARISC_PCREL22F: | |
3484 | r_field = e_fsel; | |
3485 | ||
3486 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3487 | { | |
3488 | max_branch_offset = (1 << (17-1)) << 2; | |
3489 | } | |
3490 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3491 | { | |
3492 | max_branch_offset = (1 << (12-1)) << 2; | |
3493 | } | |
3494 | else | |
3495 | { | |
3496 | max_branch_offset = (1 << (22-1)) << 2; | |
3497 | } | |
3498 | ||
3499 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3500 | undefined syms. We've already checked for a stub for the | |
3501 | shared undefined case. */ | |
3502 | if (sym_sec == NULL) | |
3503 | break; | |
3504 | ||
3505 | /* If the branch is out of reach, then redirect the | |
3506 | call to the local stub for this function. */ | |
3507 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3508 | { | |
3509 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3510 | h, rel, htab); |
30667bf3 AM |
3511 | if (stub_entry == NULL) |
3512 | return bfd_reloc_notsupported; | |
3513 | ||
3514 | /* Munge up the value and addend so that we call the stub | |
3515 | rather than the procedure directly. */ | |
3516 | value = (stub_entry->stub_offset | |
3517 | + stub_entry->stub_sec->output_offset | |
3518 | + stub_entry->stub_sec->output_section->vma | |
3519 | - location); | |
3520 | addend = -8; | |
3521 | } | |
3522 | break; | |
3523 | ||
3524 | /* Something we don't know how to handle. */ | |
3525 | default: | |
3526 | return bfd_reloc_notsupported; | |
3527 | } | |
3528 | ||
3529 | /* Make sure we can reach the stub. */ | |
3530 | if (max_branch_offset != 0 | |
3531 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3532 | { | |
3533 | (*_bfd_error_handler) | |
3534 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), | |
8f615d07 | 3535 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3536 | input_section->name, |
3537 | (long) rel->r_offset, | |
3538 | stub_entry->root.string); | |
ce757d15 | 3539 | bfd_set_error (bfd_error_bad_value); |
30667bf3 AM |
3540 | return bfd_reloc_notsupported; |
3541 | } | |
3542 | ||
3543 | val = hppa_field_adjust (value, addend, r_field); | |
3544 | ||
3545 | switch (r_type) | |
3546 | { | |
3547 | case R_PARISC_PCREL12F: | |
3548 | case R_PARISC_PCREL17C: | |
3549 | case R_PARISC_PCREL17F: | |
3550 | case R_PARISC_PCREL17R: | |
3551 | case R_PARISC_PCREL22F: | |
3552 | case R_PARISC_DIR17F: | |
3553 | case R_PARISC_DIR17R: | |
3554 | /* This is a branch. Divide the offset by four. | |
3555 | Note that we need to decide whether it's a branch or | |
3556 | otherwise by inspecting the reloc. Inspecting insn won't | |
3557 | work as insn might be from a .word directive. */ | |
3558 | val >>= 2; | |
3559 | break; | |
3560 | ||
3561 | default: | |
3562 | break; | |
3563 | } | |
3564 | ||
3565 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3566 | ||
3567 | /* Update the instruction word. */ | |
74d1c347 | 3568 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3569 | return bfd_reloc_ok; |
3570 | } | |
3571 | ||
30667bf3 AM |
3572 | /* Relocate an HPPA ELF section. */ |
3573 | ||
3574 | static boolean | |
3575 | elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section, | |
3576 | contents, relocs, local_syms, local_sections) | |
3577 | bfd *output_bfd; | |
3578 | struct bfd_link_info *info; | |
3579 | bfd *input_bfd; | |
3580 | asection *input_section; | |
3581 | bfd_byte *contents; | |
3582 | Elf_Internal_Rela *relocs; | |
3583 | Elf_Internal_Sym *local_syms; | |
3584 | asection **local_sections; | |
3585 | { | |
30667bf3 | 3586 | bfd_vma *local_got_offsets; |
83c81bfe | 3587 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3588 | Elf_Internal_Shdr *symtab_hdr; |
3589 | Elf_Internal_Rela *rel; | |
3590 | Elf_Internal_Rela *relend; | |
30667bf3 AM |
3591 | |
3592 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3593 | ||
83c81bfe | 3594 | htab = hppa_link_hash_table (info); |
74d1c347 | 3595 | local_got_offsets = elf_local_got_offsets (input_bfd); |
30667bf3 AM |
3596 | |
3597 | rel = relocs; | |
3598 | relend = relocs + input_section->reloc_count; | |
3599 | for (; rel < relend; rel++) | |
3600 | { | |
3601 | unsigned int r_type; | |
3602 | reloc_howto_type *howto; | |
3603 | unsigned int r_symndx; | |
3604 | struct elf32_hppa_link_hash_entry *h; | |
3605 | Elf_Internal_Sym *sym; | |
3606 | asection *sym_sec; | |
3607 | bfd_vma relocation; | |
3608 | bfd_reloc_status_type r; | |
3609 | const char *sym_name; | |
74d1c347 | 3610 | boolean plabel; |
30667bf3 AM |
3611 | |
3612 | r_type = ELF32_R_TYPE (rel->r_info); | |
3613 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3614 | { | |
3615 | bfd_set_error (bfd_error_bad_value); | |
3616 | return false; | |
3617 | } | |
3618 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3619 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3620 | continue; | |
3621 | ||
3622 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3623 | ||
3624 | if (info->relocateable) | |
3625 | { | |
3ac8354b | 3626 | /* This is a relocatable link. We don't have to change |
30667bf3 AM |
3627 | anything, unless the reloc is against a section symbol, |
3628 | in which case we have to adjust according to where the | |
3629 | section symbol winds up in the output section. */ | |
3630 | if (r_symndx < symtab_hdr->sh_info) | |
3631 | { | |
3632 | sym = local_syms + r_symndx; | |
3633 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3634 | { | |
3635 | sym_sec = local_sections[r_symndx]; | |
3636 | rel->r_addend += sym_sec->output_offset; | |
3637 | } | |
3638 | } | |
3639 | continue; | |
3640 | } | |
3641 | ||
3642 | /* This is a final link. */ | |
3643 | h = NULL; | |
3644 | sym = NULL; | |
3645 | sym_sec = NULL; | |
3646 | if (r_symndx < symtab_hdr->sh_info) | |
3647 | { | |
3648 | /* This is a local symbol, h defaults to NULL. */ | |
3649 | sym = local_syms + r_symndx; | |
3650 | sym_sec = local_sections[r_symndx]; | |
3651 | relocation = ((ELF_ST_TYPE (sym->st_info) == STT_SECTION | |
3652 | ? 0 : sym->st_value) | |
3653 | + sym_sec->output_offset | |
3654 | + sym_sec->output_section->vma); | |
3655 | } | |
3656 | else | |
3657 | { | |
3658 | int indx; | |
3659 | ||
3660 | /* It's a global; Find its entry in the link hash. */ | |
3661 | indx = r_symndx - symtab_hdr->sh_info; | |
3662 | h = ((struct elf32_hppa_link_hash_entry *) | |
3663 | elf_sym_hashes (input_bfd)[indx]); | |
3664 | while (h->elf.root.type == bfd_link_hash_indirect | |
3665 | || h->elf.root.type == bfd_link_hash_warning) | |
3666 | h = (struct elf32_hppa_link_hash_entry *) h->elf.root.u.i.link; | |
3667 | ||
3668 | relocation = 0; | |
3669 | if (h->elf.root.type == bfd_link_hash_defined | |
3670 | || h->elf.root.type == bfd_link_hash_defweak) | |
3671 | { | |
3672 | sym_sec = h->elf.root.u.def.section; | |
3673 | /* If sym_sec->output_section is NULL, then it's a | |
3674 | symbol defined in a shared library. */ | |
3675 | if (sym_sec->output_section != NULL) | |
3676 | relocation = (h->elf.root.u.def.value | |
3677 | + sym_sec->output_offset | |
3678 | + sym_sec->output_section->vma); | |
3679 | } | |
3680 | else if (h->elf.root.type == bfd_link_hash_undefweak) | |
3681 | ; | |
3682 | else if (info->shared && !info->no_undefined | |
49e9d0d3 AM |
3683 | && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
3684 | && h->elf.type != STT_PARISC_MILLI) | |
30667bf3 | 3685 | { |
671bae9c | 3686 | if (info->symbolic && !info->allow_shlib_undefined) |
30667bf3 AM |
3687 | if (!((*info->callbacks->undefined_symbol) |
3688 | (info, h->elf.root.root.string, input_bfd, | |
3689 | input_section, rel->r_offset, false))) | |
3690 | return false; | |
3691 | } | |
3692 | else | |
3693 | { | |
3694 | if (!((*info->callbacks->undefined_symbol) | |
3695 | (info, h->elf.root.root.string, input_bfd, | |
3696 | input_section, rel->r_offset, true))) | |
3697 | return false; | |
3698 | } | |
3699 | } | |
3700 | ||
3701 | /* Do any required modifications to the relocation value, and | |
25f72752 AM |
3702 | determine what types of dynamic info we need to output, if |
3703 | any. */ | |
74d1c347 | 3704 | plabel = 0; |
30667bf3 AM |
3705 | switch (r_type) |
3706 | { | |
3707 | case R_PARISC_DLTIND14F: | |
3708 | case R_PARISC_DLTIND14R: | |
3709 | case R_PARISC_DLTIND21L: | |
ce757d15 AM |
3710 | { |
3711 | bfd_vma off; | |
3712 | boolean do_got = 0; | |
3713 | ||
3714 | /* Relocation is to the entry for this symbol in the | |
3715 | global offset table. */ | |
3716 | if (h != NULL) | |
3717 | { | |
3718 | boolean dyn; | |
3719 | ||
3720 | off = h->elf.got.offset; | |
3721 | dyn = htab->elf.dynamic_sections_created; | |
3722 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf)) | |
3723 | { | |
3724 | /* If we aren't going to call finish_dynamic_symbol, | |
3725 | then we need to handle initialisation of the .got | |
3726 | entry and create needed relocs here. Since the | |
3727 | offset must always be a multiple of 4, we use the | |
3728 | least significant bit to record whether we have | |
3729 | initialised it already. */ | |
3730 | if ((off & 1) != 0) | |
3731 | off &= ~1; | |
3732 | else | |
3733 | { | |
3734 | h->elf.got.offset |= 1; | |
3735 | do_got = 1; | |
3736 | } | |
3737 | } | |
3738 | } | |
3739 | else | |
3740 | { | |
3741 | /* Local symbol case. */ | |
3742 | if (local_got_offsets == NULL) | |
3743 | abort (); | |
3744 | ||
3745 | off = local_got_offsets[r_symndx]; | |
3746 | ||
3747 | /* The offset must always be a multiple of 4. We use | |
3748 | the least significant bit to record whether we have | |
3749 | already generated the necessary reloc. */ | |
3750 | if ((off & 1) != 0) | |
3751 | off &= ~1; | |
3752 | else | |
3753 | { | |
3754 | local_got_offsets[r_symndx] |= 1; | |
3755 | do_got = 1; | |
3756 | } | |
3757 | } | |
68fb2e56 | 3758 | |
ce757d15 AM |
3759 | if (do_got) |
3760 | { | |
3761 | if (info->shared) | |
3762 | { | |
3763 | /* Output a dynamic relocation for this GOT entry. | |
3764 | In this case it is relative to the base of the | |
3765 | object because the symbol index is zero. */ | |
3766 | Elf_Internal_Rela outrel; | |
3767 | asection *srelgot = htab->srelgot; | |
3768 | Elf32_External_Rela *loc; | |
3769 | ||
3770 | outrel.r_offset = (off | |
3771 | + htab->sgot->output_offset | |
3772 | + htab->sgot->output_section->vma); | |
3773 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); | |
3774 | outrel.r_addend = relocation; | |
3775 | loc = (Elf32_External_Rela *) srelgot->contents; | |
3776 | loc += srelgot->reloc_count++; | |
3777 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3778 | } | |
3779 | else | |
30667bf3 | 3780 | bfd_put_32 (output_bfd, relocation, |
83c81bfe | 3781 | htab->sgot->contents + off); |
ce757d15 | 3782 | } |
30667bf3 | 3783 | |
ce757d15 AM |
3784 | if (off >= (bfd_vma) -2) |
3785 | abort (); | |
30667bf3 | 3786 | |
ce757d15 AM |
3787 | /* Add the base of the GOT to the relocation value. */ |
3788 | relocation = (off | |
3789 | + htab->sgot->output_offset | |
3790 | + htab->sgot->output_section->vma); | |
3791 | } | |
30667bf3 | 3792 | break; |
252b5132 | 3793 | |
c46b7515 AM |
3794 | case R_PARISC_SEGREL32: |
3795 | /* If this is the first SEGREL relocation, then initialize | |
3796 | the segment base values. */ | |
83c81bfe AM |
3797 | if (htab->text_segment_base == (bfd_vma) -1) |
3798 | bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); | |
c46b7515 AM |
3799 | break; |
3800 | ||
30667bf3 AM |
3801 | case R_PARISC_PLABEL14R: |
3802 | case R_PARISC_PLABEL21L: | |
3803 | case R_PARISC_PLABEL32: | |
ebe50bae | 3804 | if (htab->elf.dynamic_sections_created) |
252b5132 | 3805 | { |
ce757d15 AM |
3806 | bfd_vma off; |
3807 | boolean do_plt = 0; | |
3808 | ||
74d1c347 AM |
3809 | /* If we have a global symbol with a PLT slot, then |
3810 | redirect this relocation to it. */ | |
3811 | if (h != NULL) | |
3812 | { | |
3813 | off = h->elf.plt.offset; | |
4dc86686 | 3814 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, &h->elf)) |
8dea1268 AM |
3815 | { |
3816 | /* In a non-shared link, adjust_dynamic_symbols | |
3817 | isn't called for symbols forced local. We | |
dc810e39 | 3818 | need to write out the plt entry here. */ |
8dea1268 AM |
3819 | if ((off & 1) != 0) |
3820 | off &= ~1; | |
3821 | else | |
3822 | { | |
8dea1268 | 3823 | h->elf.plt.offset |= 1; |
ce757d15 | 3824 | do_plt = 1; |
8dea1268 AM |
3825 | } |
3826 | } | |
74d1c347 AM |
3827 | } |
3828 | else | |
3829 | { | |
68fb2e56 AM |
3830 | bfd_vma *local_plt_offsets; |
3831 | ||
3832 | if (local_got_offsets == NULL) | |
3833 | abort (); | |
74d1c347 | 3834 | |
68fb2e56 AM |
3835 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3836 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3837 | |
3838 | /* As for the local .got entry case, we use the last | |
3839 | bit to record whether we've already initialised | |
3840 | this local .plt entry. */ | |
3841 | if ((off & 1) != 0) | |
3842 | off &= ~1; | |
ce757d15 AM |
3843 | else |
3844 | { | |
3845 | local_plt_offsets[r_symndx] |= 1; | |
3846 | do_plt = 1; | |
3847 | } | |
3848 | } | |
3849 | ||
3850 | if (do_plt) | |
3851 | { | |
3852 | if (info->shared) | |
3853 | { | |
3854 | /* Output a dynamic IPLT relocation for this | |
3855 | PLT entry. */ | |
3856 | Elf_Internal_Rela outrel; | |
3857 | asection *srelplt = htab->srelplt; | |
3858 | Elf32_External_Rela *loc; | |
3859 | ||
3860 | outrel.r_offset = (off | |
3861 | + htab->splt->output_offset | |
3862 | + htab->splt->output_section->vma); | |
3863 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3864 | outrel.r_addend = relocation; | |
3865 | loc = (Elf32_External_Rela *) srelplt->contents; | |
3866 | loc += srelplt->reloc_count++; | |
3867 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3868 | } | |
74d1c347 AM |
3869 | else |
3870 | { | |
3871 | bfd_put_32 (output_bfd, | |
3872 | relocation, | |
83c81bfe | 3873 | htab->splt->contents + off); |
74d1c347 | 3874 | bfd_put_32 (output_bfd, |
83c81bfe AM |
3875 | elf_gp (htab->splt->output_section->owner), |
3876 | htab->splt->contents + off + 4); | |
74d1c347 AM |
3877 | } |
3878 | } | |
3879 | ||
68fb2e56 | 3880 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3881 | abort (); |
74d1c347 AM |
3882 | |
3883 | /* PLABELs contain function pointers. Relocation is to | |
3884 | the entry for the function in the .plt. The magic +2 | |
3885 | offset signals to $$dyncall that the function pointer | |
3886 | is in the .plt and thus has a gp pointer too. | |
3887 | Exception: Undefined PLABELs should have a value of | |
3888 | zero. */ | |
3889 | if (h == NULL | |
3890 | || (h->elf.root.type != bfd_link_hash_undefweak | |
3891 | && h->elf.root.type != bfd_link_hash_undefined)) | |
3892 | { | |
3893 | relocation = (off | |
83c81bfe AM |
3894 | + htab->splt->output_offset |
3895 | + htab->splt->output_section->vma | |
74d1c347 AM |
3896 | + 2); |
3897 | } | |
3898 | plabel = 1; | |
30667bf3 AM |
3899 | } |
3900 | /* Fall through and possibly emit a dynamic relocation. */ | |
3901 | ||
3902 | case R_PARISC_DIR17F: | |
3903 | case R_PARISC_DIR17R: | |
47d89dba | 3904 | case R_PARISC_DIR14F: |
30667bf3 AM |
3905 | case R_PARISC_DIR14R: |
3906 | case R_PARISC_DIR21L: | |
3907 | case R_PARISC_DPREL14F: | |
3908 | case R_PARISC_DPREL14R: | |
3909 | case R_PARISC_DPREL21L: | |
3910 | case R_PARISC_DIR32: | |
ec338859 AM |
3911 | /* r_symndx will be zero only for relocs against symbols |
3912 | from removed linkonce sections, or sections discarded by | |
3913 | a linker script. */ | |
3914 | if (r_symndx == 0 | |
3915 | || (input_section->flags & SEC_ALLOC) == 0) | |
3916 | break; | |
3917 | ||
30667bf3 | 3918 | /* The reloc types handled here and this conditional |
56882138 | 3919 | expression must match the code in ..check_relocs and |
ec338859 | 3920 | allocate_dynrelocs. ie. We need exactly the same condition |
56882138 AM |
3921 | as in ..check_relocs, with some extra conditions (dynindx |
3922 | test in this case) to cater for relocs removed by | |
ec338859 | 3923 | allocate_dynrelocs. If you squint, the non-shared test |
56882138 AM |
3924 | here does indeed match the one in ..check_relocs, the |
3925 | difference being that here we test DEF_DYNAMIC as well as | |
3926 | !DEF_REGULAR. All common syms end up with !DEF_REGULAR, | |
3927 | which is why we can't use just that test here. | |
3928 | Conversely, DEF_DYNAMIC can't be used in check_relocs as | |
3929 | there all files have not been loaded. */ | |
446f2863 | 3930 | if ((info->shared |
446f2863 AM |
3931 | && (IS_ABSOLUTE_RELOC (r_type) |
3932 | || (h != NULL | |
3933 | && h->elf.dynindx != -1 | |
3934 | && (!info->symbolic | |
3935 | || (h->elf.elf_link_hash_flags | |
3936 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
3937 | || (!info->shared | |
446f2863 AM |
3938 | && h != NULL |
3939 | && h->elf.dynindx != -1 | |
3940 | && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
56882138 AM |
3941 | && (((h->elf.elf_link_hash_flags |
3942 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
3943 | && (h->elf.elf_link_hash_flags | |
3944 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
446f2863 AM |
3945 | || h->elf.root.type == bfd_link_hash_undefweak |
3946 | || h->elf.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
3947 | { |
3948 | Elf_Internal_Rela outrel; | |
3949 | boolean skip; | |
98ceb8ce AM |
3950 | asection *sreloc; |
3951 | Elf32_External_Rela *loc; | |
252b5132 | 3952 | |
30667bf3 AM |
3953 | /* When generating a shared object, these relocations |
3954 | are copied into the output file to be resolved at run | |
3955 | time. */ | |
252b5132 | 3956 | |
30667bf3 AM |
3957 | outrel.r_offset = rel->r_offset; |
3958 | outrel.r_addend = rel->r_addend; | |
3959 | skip = false; | |
3960 | if (elf_section_data (input_section)->stab_info != NULL) | |
edd21aca | 3961 | { |
ce757d15 AM |
3962 | bfd_vma off; |
3963 | ||
30667bf3 | 3964 | off = (_bfd_stab_section_offset |
ebe50bae | 3965 | (output_bfd, &htab->elf.stab_info, |
30667bf3 AM |
3966 | input_section, |
3967 | &elf_section_data (input_section)->stab_info, | |
3968 | rel->r_offset)); | |
3969 | if (off == (bfd_vma) -1) | |
3970 | skip = true; | |
3971 | outrel.r_offset = off; | |
edd21aca | 3972 | } |
252b5132 | 3973 | |
30667bf3 AM |
3974 | outrel.r_offset += (input_section->output_offset |
3975 | + input_section->output_section->vma); | |
3976 | ||
3977 | if (skip) | |
252b5132 | 3978 | { |
30667bf3 | 3979 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 3980 | } |
74d1c347 AM |
3981 | else if (h != NULL |
3982 | && h->elf.dynindx != -1 | |
3983 | && (plabel | |
446f2863 AM |
3984 | || !IS_ABSOLUTE_RELOC (r_type) |
3985 | || !info->shared | |
74d1c347 | 3986 | || !info->symbolic |
30667bf3 AM |
3987 | || (h->elf.elf_link_hash_flags |
3988 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
252b5132 | 3989 | { |
30667bf3 AM |
3990 | outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type); |
3991 | } | |
3992 | else /* It's a local symbol, or one marked to become local. */ | |
3993 | { | |
3994 | int indx = 0; | |
edd21aca | 3995 | |
30667bf3 AM |
3996 | /* Add the absolute offset of the symbol. */ |
3997 | outrel.r_addend += relocation; | |
edd21aca | 3998 | |
74d1c347 AM |
3999 | /* Global plabels need to be processed by the |
4000 | dynamic linker so that functions have at most one | |
4001 | fptr. For this reason, we need to differentiate | |
4002 | between global and local plabels, which we do by | |
4003 | providing the function symbol for a global plabel | |
4004 | reloc, and no symbol for local plabels. */ | |
4005 | if (! plabel | |
4006 | && sym_sec != NULL | |
30667bf3 AM |
4007 | && sym_sec->output_section != NULL |
4008 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 4009 | { |
30667bf3 AM |
4010 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
4011 | /* We are turning this relocation into one | |
4012 | against a section symbol, so subtract out the | |
4013 | output section's address but not the offset | |
4014 | of the input section in the output section. */ | |
4015 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 4016 | } |
252b5132 | 4017 | |
30667bf3 AM |
4018 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
4019 | } | |
68fb2e56 AM |
4020 | #if 0 |
4021 | /* EH info can cause unaligned DIR32 relocs. | |
4022 | Tweak the reloc type for the dynamic linker. */ | |
4023 | if (r_type == R_PARISC_DIR32 && (outrel.r_offset & 3) != 0) | |
4024 | outrel.r_info = ELF32_R_INFO (ELF32_R_SYM (outrel.r_info), | |
4025 | R_PARISC_DIR32U); | |
4026 | #endif | |
98ceb8ce AM |
4027 | sreloc = elf_section_data (input_section)->sreloc; |
4028 | if (sreloc == NULL) | |
4029 | abort (); | |
4030 | ||
3ac8354b AM |
4031 | loc = (Elf32_External_Rela *) sreloc->contents; |
4032 | loc += sreloc->reloc_count++; | |
98ceb8ce | 4033 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
30667bf3 AM |
4034 | } |
4035 | break; | |
edd21aca | 4036 | |
30667bf3 AM |
4037 | default: |
4038 | break; | |
4039 | } | |
252b5132 | 4040 | |
30667bf3 | 4041 | r = final_link_relocate (input_section, contents, rel, relocation, |
83c81bfe | 4042 | htab, sym_sec, h); |
252b5132 | 4043 | |
30667bf3 AM |
4044 | if (r == bfd_reloc_ok) |
4045 | continue; | |
252b5132 | 4046 | |
30667bf3 AM |
4047 | if (h != NULL) |
4048 | sym_name = h->elf.root.root.string; | |
4049 | else | |
4050 | { | |
4051 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
4052 | symtab_hdr->sh_link, | |
4053 | sym->st_name); | |
4054 | if (sym_name == NULL) | |
4055 | return false; | |
4056 | if (*sym_name == '\0') | |
4057 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
4058 | } | |
edd21aca | 4059 | |
30667bf3 | 4060 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 4061 | |
30667bf3 AM |
4062 | if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported) |
4063 | { | |
4064 | (*_bfd_error_handler) | |
4065 | (_("%s(%s+0x%lx): cannot handle %s for %s"), | |
8f615d07 | 4066 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
4067 | input_section->name, |
4068 | (long) rel->r_offset, | |
4069 | howto->name, | |
4070 | sym_name); | |
8f615d07 AM |
4071 | bfd_set_error (bfd_error_bad_value); |
4072 | return false; | |
30667bf3 AM |
4073 | } |
4074 | else | |
4075 | { | |
4076 | if (!((*info->callbacks->reloc_overflow) | |
4077 | (info, sym_name, howto->name, (bfd_vma) 0, | |
4078 | input_bfd, input_section, rel->r_offset))) | |
4079 | return false; | |
4080 | } | |
4081 | } | |
edd21aca | 4082 | |
30667bf3 AM |
4083 | return true; |
4084 | } | |
252b5132 | 4085 | |
c46b7515 AM |
4086 | /* Comparison function for qsort to sort unwind section during a |
4087 | final link. */ | |
4088 | ||
4089 | static int | |
4090 | hppa_unwind_entry_compare (a, b) | |
4091 | const PTR a; | |
4092 | const PTR b; | |
4093 | { | |
4094 | const bfd_byte *ap, *bp; | |
4095 | unsigned long av, bv; | |
4096 | ||
4097 | ap = (const bfd_byte *) a; | |
4098 | av = (unsigned long) ap[0] << 24; | |
4099 | av |= (unsigned long) ap[1] << 16; | |
4100 | av |= (unsigned long) ap[2] << 8; | |
4101 | av |= (unsigned long) ap[3]; | |
4102 | ||
4103 | bp = (const bfd_byte *) b; | |
4104 | bv = (unsigned long) bp[0] << 24; | |
4105 | bv |= (unsigned long) bp[1] << 16; | |
4106 | bv |= (unsigned long) bp[2] << 8; | |
4107 | bv |= (unsigned long) bp[3]; | |
4108 | ||
4109 | return av < bv ? -1 : av > bv ? 1 : 0; | |
4110 | } | |
4111 | ||
30667bf3 AM |
4112 | /* Finish up dynamic symbol handling. We set the contents of various |
4113 | dynamic sections here. */ | |
252b5132 | 4114 | |
30667bf3 AM |
4115 | static boolean |
4116 | elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym) | |
4117 | bfd *output_bfd; | |
4118 | struct bfd_link_info *info; | |
4119 | struct elf_link_hash_entry *h; | |
4120 | Elf_Internal_Sym *sym; | |
4121 | { | |
83c81bfe | 4122 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 4123 | |
83c81bfe | 4124 | htab = hppa_link_hash_table (info); |
30667bf3 | 4125 | |
30667bf3 AM |
4126 | if (h->plt.offset != (bfd_vma) -1) |
4127 | { | |
4128 | bfd_vma value; | |
30667bf3 | 4129 | |
8dea1268 AM |
4130 | if (h->plt.offset & 1) |
4131 | abort (); | |
4132 | ||
30667bf3 AM |
4133 | /* This symbol has an entry in the procedure linkage table. Set |
4134 | it up. | |
4135 | ||
4136 | The format of a plt entry is | |
74d1c347 AM |
4137 | <funcaddr> |
4138 | <__gp> | |
47d89dba | 4139 | */ |
30667bf3 AM |
4140 | value = 0; |
4141 | if (h->root.type == bfd_link_hash_defined | |
4142 | || h->root.type == bfd_link_hash_defweak) | |
4143 | { | |
4144 | value = h->root.u.def.value; | |
4145 | if (h->root.u.def.section->output_section != NULL) | |
4146 | value += (h->root.u.def.section->output_offset | |
4147 | + h->root.u.def.section->output_section->vma); | |
252b5132 | 4148 | } |
edd21aca | 4149 | |
74d1c347 | 4150 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call) |
30667bf3 | 4151 | { |
47d89dba | 4152 | Elf_Internal_Rela rel; |
3ac8354b | 4153 | Elf32_External_Rela *loc; |
47d89dba | 4154 | |
30667bf3 AM |
4155 | /* Create a dynamic IPLT relocation for this entry. */ |
4156 | rel.r_offset = (h->plt.offset | |
83c81bfe AM |
4157 | + htab->splt->output_offset |
4158 | + htab->splt->output_section->vma); | |
ce757d15 | 4159 | if (h->dynindx != -1) |
74d1c347 AM |
4160 | { |
4161 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT); | |
4162 | rel.r_addend = 0; | |
4163 | } | |
4164 | else | |
4165 | { | |
4166 | /* This symbol has been marked to become local, and is | |
4167 | used by a plabel so must be kept in the .plt. */ | |
4168 | rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
4169 | rel.r_addend = value; | |
4170 | } | |
30667bf3 | 4171 | |
3ac8354b AM |
4172 | loc = (Elf32_External_Rela *) htab->srelplt->contents; |
4173 | loc += htab->srelplt->reloc_count++; | |
83c81bfe | 4174 | bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, |
3ac8354b | 4175 | &rel, loc); |
30667bf3 | 4176 | } |
ce757d15 | 4177 | else |
47d89dba | 4178 | { |
ce757d15 AM |
4179 | bfd_put_32 (htab->splt->owner, |
4180 | value, | |
4181 | htab->splt->contents + h->plt.offset); | |
4182 | bfd_put_32 (htab->splt->owner, | |
4183 | elf_gp (htab->splt->output_section->owner), | |
4184 | htab->splt->contents + h->plt.offset + 4); | |
47d89dba AM |
4185 | } |
4186 | ||
30667bf3 AM |
4187 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
4188 | { | |
4189 | /* Mark the symbol as undefined, rather than as defined in | |
4190 | the .plt section. Leave the value alone. */ | |
4191 | sym->st_shndx = SHN_UNDEF; | |
4192 | } | |
4193 | } | |
edd21aca | 4194 | |
30667bf3 AM |
4195 | if (h->got.offset != (bfd_vma) -1) |
4196 | { | |
4197 | Elf_Internal_Rela rel; | |
3ac8354b | 4198 | Elf32_External_Rela *loc; |
30667bf3 AM |
4199 | |
4200 | /* This symbol has an entry in the global offset table. Set it | |
4201 | up. */ | |
4202 | ||
4203 | rel.r_offset = ((h->got.offset &~ (bfd_vma) 1) | |
83c81bfe AM |
4204 | + htab->sgot->output_offset |
4205 | + htab->sgot->output_section->vma); | |
30667bf3 | 4206 | |
4dc86686 AM |
4207 | /* If this is a -Bsymbolic link and the symbol is defined |
4208 | locally or was forced to be local because of a version file, | |
4209 | we just want to emit a RELATIVE reloc. The entry in the | |
4210 | global offset table will already have been initialized in the | |
4211 | relocate_section function. */ | |
4212 | if (info->shared | |
4213 | && (info->symbolic || h->dynindx == -1) | |
4214 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
30667bf3 | 4215 | { |
74d1c347 | 4216 | rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
4217 | rel.r_addend = (h->root.u.def.value |
4218 | + h->root.u.def.section->output_offset | |
4219 | + h->root.u.def.section->output_section->vma); | |
4220 | } | |
4221 | else | |
4222 | { | |
49e9d0d3 AM |
4223 | if ((h->got.offset & 1) != 0) |
4224 | abort (); | |
30667bf3 | 4225 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
83c81bfe | 4226 | htab->sgot->contents + h->got.offset); |
30667bf3 AM |
4227 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32); |
4228 | rel.r_addend = 0; | |
4229 | } | |
edd21aca | 4230 | |
3ac8354b AM |
4231 | loc = (Elf32_External_Rela *) htab->srelgot->contents; |
4232 | loc += htab->srelgot->reloc_count++; | |
4233 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 | 4234 | } |
edd21aca | 4235 | |
30667bf3 AM |
4236 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
4237 | { | |
4238 | asection *s; | |
4239 | Elf_Internal_Rela rel; | |
3ac8354b | 4240 | Elf32_External_Rela *loc; |
30667bf3 AM |
4241 | |
4242 | /* This symbol needs a copy reloc. Set it up. */ | |
4243 | ||
49e9d0d3 AM |
4244 | if (! (h->dynindx != -1 |
4245 | && (h->root.type == bfd_link_hash_defined | |
4246 | || h->root.type == bfd_link_hash_defweak))) | |
4247 | abort (); | |
30667bf3 | 4248 | |
83c81bfe | 4249 | s = htab->srelbss; |
30667bf3 AM |
4250 | |
4251 | rel.r_offset = (h->root.u.def.value | |
4252 | + h->root.u.def.section->output_offset | |
4253 | + h->root.u.def.section->output_section->vma); | |
4254 | rel.r_addend = 0; | |
4255 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY); | |
3ac8354b AM |
4256 | loc = (Elf32_External_Rela *) s->contents + s->reloc_count++; |
4257 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 AM |
4258 | } |
4259 | ||
4260 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
4261 | if (h->root.root.string[0] == '_' | |
4262 | && (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4263 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)) | |
4264 | { | |
4265 | sym->st_shndx = SHN_ABS; | |
4266 | } | |
4267 | ||
4268 | return true; | |
4269 | } | |
4270 | ||
98ceb8ce AM |
4271 | /* Used to decide how to sort relocs in an optimal manner for the |
4272 | dynamic linker, before writing them out. */ | |
4273 | ||
4274 | static enum elf_reloc_type_class | |
4275 | elf32_hppa_reloc_type_class (rela) | |
4276 | const Elf_Internal_Rela *rela; | |
4277 | { | |
4278 | if (ELF32_R_SYM (rela->r_info) == 0) | |
4279 | return reloc_class_relative; | |
4280 | ||
4281 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4282 | { | |
4283 | case R_PARISC_IPLT: | |
4284 | return reloc_class_plt; | |
4285 | case R_PARISC_COPY: | |
4286 | return reloc_class_copy; | |
4287 | default: | |
4288 | return reloc_class_normal; | |
4289 | } | |
4290 | } | |
4291 | ||
30667bf3 AM |
4292 | /* Finish up the dynamic sections. */ |
4293 | ||
4294 | static boolean | |
4295 | elf32_hppa_finish_dynamic_sections (output_bfd, info) | |
4296 | bfd *output_bfd; | |
4297 | struct bfd_link_info *info; | |
4298 | { | |
4299 | bfd *dynobj; | |
83c81bfe | 4300 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
4301 | asection *sdyn; |
4302 | ||
83c81bfe | 4303 | htab = hppa_link_hash_table (info); |
ebe50bae | 4304 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
4305 | |
4306 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4307 | ||
ebe50bae | 4308 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
4309 | { |
4310 | Elf32_External_Dyn *dyncon, *dynconend; | |
4311 | ||
49e9d0d3 AM |
4312 | if (sdyn == NULL) |
4313 | abort (); | |
30667bf3 AM |
4314 | |
4315 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
4316 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4317 | for (; dyncon < dynconend; dyncon++) | |
edd21aca | 4318 | { |
30667bf3 AM |
4319 | Elf_Internal_Dyn dyn; |
4320 | asection *s; | |
4321 | ||
4322 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4323 | ||
4324 | switch (dyn.d_tag) | |
4325 | { | |
4326 | default: | |
3ac8354b | 4327 | continue; |
30667bf3 AM |
4328 | |
4329 | case DT_PLTGOT: | |
4330 | /* Use PLTGOT to set the GOT register. */ | |
4331 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
30667bf3 AM |
4332 | break; |
4333 | ||
4334 | case DT_JMPREL: | |
83c81bfe | 4335 | s = htab->srelplt; |
30667bf3 | 4336 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
30667bf3 AM |
4337 | break; |
4338 | ||
4339 | case DT_PLTRELSZ: | |
83c81bfe | 4340 | s = htab->srelplt; |
30667bf3 AM |
4341 | if (s->_cooked_size != 0) |
4342 | dyn.d_un.d_val = s->_cooked_size; | |
4343 | else | |
4344 | dyn.d_un.d_val = s->_raw_size; | |
30667bf3 | 4345 | break; |
4e12ff7f AM |
4346 | |
4347 | case DT_RELASZ: | |
4348 | /* Don't count procedure linkage table relocs in the | |
4349 | overall reloc count. */ | |
4350 | if (htab->srelplt != NULL) | |
4351 | { | |
4352 | s = htab->srelplt->output_section; | |
4353 | if (s->_cooked_size != 0) | |
4354 | dyn.d_un.d_val -= s->_cooked_size; | |
4355 | else | |
4356 | dyn.d_un.d_val -= s->_raw_size; | |
4357 | } | |
4358 | break; | |
30667bf3 | 4359 | } |
3ac8354b AM |
4360 | |
4361 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
edd21aca | 4362 | } |
252b5132 | 4363 | } |
edd21aca | 4364 | |
83c81bfe | 4365 | if (htab->sgot != NULL && htab->sgot->_raw_size != 0) |
30667bf3 | 4366 | { |
74d1c347 AM |
4367 | /* Fill in the first entry in the global offset table. |
4368 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 AM |
4369 | bfd_put_32 (output_bfd, |
4370 | (sdyn != NULL | |
4371 | ? sdyn->output_section->vma + sdyn->output_offset | |
4372 | : (bfd_vma) 0), | |
83c81bfe | 4373 | htab->sgot->contents); |
30667bf3 | 4374 | |
74d1c347 | 4375 | /* The second entry is reserved for use by the dynamic linker. */ |
83c81bfe | 4376 | memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4377 | |
30667bf3 | 4378 | /* Set .got entry size. */ |
83c81bfe | 4379 | elf_section_data (htab->sgot->output_section) |
74d1c347 | 4380 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; |
30667bf3 AM |
4381 | } |
4382 | ||
83c81bfe | 4383 | if (htab->splt != NULL && htab->splt->_raw_size != 0) |
47d89dba AM |
4384 | { |
4385 | /* Set plt entry size. */ | |
83c81bfe | 4386 | elf_section_data (htab->splt->output_section) |
47d89dba AM |
4387 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; |
4388 | ||
83c81bfe | 4389 | if (htab->need_plt_stub) |
47d89dba AM |
4390 | { |
4391 | /* Set up the .plt stub. */ | |
83c81bfe AM |
4392 | memcpy (htab->splt->contents |
4393 | + htab->splt->_raw_size - sizeof (plt_stub), | |
47d89dba AM |
4394 | plt_stub, sizeof (plt_stub)); |
4395 | ||
83c81bfe AM |
4396 | if ((htab->splt->output_offset |
4397 | + htab->splt->output_section->vma | |
4398 | + htab->splt->_raw_size) | |
4399 | != (htab->sgot->output_offset | |
4400 | + htab->sgot->output_section->vma)) | |
47d89dba AM |
4401 | { |
4402 | (*_bfd_error_handler) | |
4403 | (_(".got section not immediately after .plt section")); | |
4404 | return false; | |
4405 | } | |
4406 | } | |
4407 | } | |
30667bf3 | 4408 | |
252b5132 | 4409 | return true; |
30667bf3 | 4410 | } |
252b5132 | 4411 | |
d952f17a AM |
4412 | /* Tweak the OSABI field of the elf header. */ |
4413 | ||
4414 | static void | |
4415 | elf32_hppa_post_process_headers (abfd, link_info) | |
4416 | bfd *abfd; | |
4417 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
4418 | { | |
4419 | Elf_Internal_Ehdr * i_ehdrp; | |
4420 | ||
4421 | i_ehdrp = elf_elfheader (abfd); | |
4422 | ||
4423 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
4424 | { | |
4425 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
4426 | } | |
4427 | else | |
4428 | { | |
4429 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; | |
4430 | } | |
4431 | } | |
4432 | ||
30667bf3 AM |
4433 | /* Called when writing out an object file to decide the type of a |
4434 | symbol. */ | |
4435 | static int | |
4436 | elf32_hppa_elf_get_symbol_type (elf_sym, type) | |
4437 | Elf_Internal_Sym *elf_sym; | |
4438 | int type; | |
4439 | { | |
4440 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4441 | return STT_PARISC_MILLI; | |
4442 | else | |
4443 | return type; | |
252b5132 RH |
4444 | } |
4445 | ||
4446 | /* Misc BFD support code. */ | |
30667bf3 AM |
4447 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4448 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4449 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4450 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4451 | |
252b5132 | 4452 | /* Stuff for the BFD linker. */ |
c46b7515 | 4453 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 AM |
4454 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
4455 | #define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook | |
4456 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol | |
ebe50bae | 4457 | #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol |
30667bf3 AM |
4458 | #define elf_backend_check_relocs elf32_hppa_check_relocs |
4459 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4460 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4461 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4462 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4463 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4464 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4465 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4466 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4467 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
4468 | #define elf_backend_object_p elf32_hppa_object_p | |
4469 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d952f17a | 4470 | #define elf_backend_post_process_headers elf32_hppa_post_process_headers |
30667bf3 | 4471 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
98ceb8ce | 4472 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
30667bf3 AM |
4473 | |
4474 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4475 | #define elf_backend_can_refcount 1 |
30667bf3 AM |
4476 | #define elf_backend_plt_alignment 2 |
4477 | #define elf_backend_want_got_plt 0 | |
4478 | #define elf_backend_plt_readonly 0 | |
4479 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4480 | #define elf_backend_got_header_size 8 |
252b5132 RH |
4481 | |
4482 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4483 | #define TARGET_BIG_NAME "elf32-hppa" | |
4484 | #define ELF_ARCH bfd_arch_hppa | |
4485 | #define ELF_MACHINE_CODE EM_PARISC | |
4486 | #define ELF_MAXPAGESIZE 0x1000 | |
4487 | ||
4488 | #include "elf32-target.h" | |
d952f17a AM |
4489 | |
4490 | #undef TARGET_BIG_SYM | |
4491 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec | |
4492 | #undef TARGET_BIG_NAME | |
4493 | #define TARGET_BIG_NAME "elf32-hppa-linux" | |
4494 | ||
4495 | #define INCLUDED_TARGET_FILE 1 | |
4496 | #include "elf32-target.h" |