Commit | Line | Data |
---|---|---|
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 | |
117 | #define GOT_ENTRY_SIZE 4 | |
118 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
119 | ||
47d89dba AM |
120 | static const bfd_byte plt_stub[] = |
121 | { | |
122 | 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */ | |
123 | 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */ | |
124 | 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */ | |
125 | #define PLT_STUB_ENTRY (3*4) | |
126 | 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */ | |
127 | 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */ | |
128 | 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */ | |
129 | 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */ | |
130 | }; | |
131 | ||
30667bf3 AM |
132 | /* Section name for stubs is the associated section name plus this |
133 | string. */ | |
134 | #define STUB_SUFFIX ".stub" | |
135 | ||
98ceb8ce AM |
136 | /* We don't need to copy certain PC- or GP-relative dynamic relocs |
137 | into a shared object's dynamic section. All the relocs of the | |
138 | limited class we are interested in, are absolute. */ | |
139 | #ifndef RELATIVE_DYNRELOCS | |
140 | #define RELATIVE_DYNRELOCS 0 | |
446f2863 | 141 | #define IS_ABSOLUTE_RELOC(r_type) 1 |
30667bf3 AM |
142 | #endif |
143 | ||
30667bf3 AM |
144 | enum elf32_hppa_stub_type { |
145 | hppa_stub_long_branch, | |
146 | hppa_stub_long_branch_shared, | |
147 | hppa_stub_import, | |
148 | hppa_stub_import_shared, | |
149 | hppa_stub_export, | |
150 | hppa_stub_none | |
151 | }; | |
152 | ||
30667bf3 | 153 | struct elf32_hppa_stub_hash_entry { |
252b5132 | 154 | |
edd21aca | 155 | /* Base hash table entry structure. */ |
252b5132 RH |
156 | struct bfd_hash_entry root; |
157 | ||
edd21aca AM |
158 | /* The stub section. */ |
159 | asection *stub_sec; | |
160 | ||
161 | /* Offset within stub_sec of the beginning of this stub. */ | |
30667bf3 | 162 | bfd_vma stub_offset; |
252b5132 RH |
163 | |
164 | /* Given the symbol's value and its section we can determine its final | |
165 | value when building the stubs (so the stub knows where to jump. */ | |
30667bf3 | 166 | bfd_vma target_value; |
252b5132 | 167 | asection *target_section; |
30667bf3 AM |
168 | |
169 | enum elf32_hppa_stub_type stub_type; | |
170 | ||
171 | /* The symbol table entry, if any, that this was derived from. */ | |
172 | struct elf32_hppa_link_hash_entry *h; | |
173 | ||
25f72752 AM |
174 | /* Where this stub is being called from, or, in the case of combined |
175 | stub sections, the first input section in the group. */ | |
176 | asection *id_sec; | |
252b5132 RH |
177 | }; |
178 | ||
30667bf3 AM |
179 | struct elf32_hppa_link_hash_entry { |
180 | ||
181 | struct elf_link_hash_entry elf; | |
182 | ||
183 | /* A pointer to the most recently used stub hash entry against this | |
184 | symbol. */ | |
185 | struct elf32_hppa_stub_hash_entry *stub_cache; | |
186 | ||
30667bf3 AM |
187 | /* Used to count relocations for delayed sizing of relocation |
188 | sections. */ | |
189 | struct elf32_hppa_dyn_reloc_entry { | |
190 | ||
191 | /* Next relocation in the chain. */ | |
192 | struct elf32_hppa_dyn_reloc_entry *next; | |
193 | ||
98ceb8ce AM |
194 | /* The input section of the reloc. */ |
195 | asection *sec; | |
30667bf3 AM |
196 | |
197 | /* Number of relocs copied in this section. */ | |
198 | bfd_size_type count; | |
98ceb8ce AM |
199 | |
200 | #if RELATIVE_DYNRELOCS | |
201 | /* Number of relative relocs copied for the input section. */ | |
202 | bfd_size_type relative_count; | |
203 | #endif | |
204 | } *dyn_relocs; | |
30667bf3 AM |
205 | |
206 | /* Set during a static link if we detect a function is PIC. */ | |
12cca0d2 AM |
207 | unsigned int maybe_pic_call:1; |
208 | ||
209 | /* Set if the only reason we need a .plt entry is for a non-PIC to | |
210 | PIC function call. */ | |
74d1c347 AM |
211 | unsigned int pic_call:1; |
212 | ||
213 | /* Set if this symbol is used by a plabel reloc. */ | |
214 | unsigned int plabel:1; | |
30667bf3 AM |
215 | }; |
216 | ||
30667bf3 AM |
217 | struct elf32_hppa_link_hash_table { |
218 | ||
252b5132 | 219 | /* The main hash table. */ |
ebe50bae | 220 | struct elf_link_hash_table elf; |
252b5132 RH |
221 | |
222 | /* The stub hash table. */ | |
edd21aca | 223 | struct bfd_hash_table stub_hash_table; |
252b5132 | 224 | |
30667bf3 AM |
225 | /* Linker stub bfd. */ |
226 | bfd *stub_bfd; | |
227 | ||
30667bf3 AM |
228 | /* Linker call-backs. */ |
229 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
230 | void (*layout_sections_again) PARAMS ((void)); | |
231 | ||
25f72752 AM |
232 | /* Array to keep track of which stub sections have been created, and |
233 | information on stub grouping. */ | |
234 | struct map_stub { | |
235 | /* This is the section to which stubs in the group will be | |
236 | attached. */ | |
237 | asection *link_sec; | |
238 | /* The stub section. */ | |
239 | asection *stub_sec; | |
25f72752 | 240 | } *stub_group; |
30667bf3 | 241 | |
30667bf3 AM |
242 | /* Short-cuts to get to dynamic linker sections. */ |
243 | asection *sgot; | |
244 | asection *srelgot; | |
245 | asection *splt; | |
246 | asection *srelplt; | |
247 | asection *sdynbss; | |
248 | asection *srelbss; | |
47d89dba | 249 | |
c46b7515 AM |
250 | /* Used during a final link to store the base of the text and data |
251 | segments so that we can perform SEGREL relocations. */ | |
252 | bfd_vma text_segment_base; | |
253 | bfd_vma data_segment_base; | |
254 | ||
47d89dba AM |
255 | /* Whether we support multiple sub-spaces for shared libs. */ |
256 | unsigned int multi_subspace:1; | |
257 | ||
258 | /* Flags set when PCREL12F and PCREL17F branches detected. Used to | |
259 | select suitable defaults for the stub group size. */ | |
260 | unsigned int has_12bit_branch:1; | |
261 | unsigned int has_17bit_branch:1; | |
262 | ||
263 | /* Set if we need a .plt stub to support lazy dynamic linking. */ | |
264 | unsigned int need_plt_stub:1; | |
ec338859 AM |
265 | |
266 | /* Small local sym to section mapping cache. */ | |
267 | struct sym_sec_cache sym_sec; | |
252b5132 RH |
268 | }; |
269 | ||
30667bf3 AM |
270 | /* Various hash macros and functions. */ |
271 | #define hppa_link_hash_table(p) \ | |
edd21aca | 272 | ((struct elf32_hppa_link_hash_table *) ((p)->hash)) |
252b5132 | 273 | |
30667bf3 AM |
274 | #define hppa_stub_hash_lookup(table, string, create, copy) \ |
275 | ((struct elf32_hppa_stub_hash_entry *) \ | |
276 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
277 | ||
278 | static struct bfd_hash_entry *stub_hash_newfunc | |
279 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
edd21aca | 280 | |
30667bf3 | 281 | static struct bfd_hash_entry *hppa_link_hash_newfunc |
edd21aca | 282 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
252b5132 RH |
283 | |
284 | static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create | |
285 | PARAMS ((bfd *)); | |
286 | ||
30667bf3 AM |
287 | /* Stub handling functions. */ |
288 | static char *hppa_stub_name | |
289 | PARAMS ((const asection *, const asection *, | |
290 | const struct elf32_hppa_link_hash_entry *, | |
291 | const Elf_Internal_Rela *)); | |
edd21aca | 292 | |
30667bf3 AM |
293 | static struct elf32_hppa_stub_hash_entry *hppa_get_stub_entry |
294 | PARAMS ((const asection *, const asection *, | |
295 | struct elf32_hppa_link_hash_entry *, | |
25f72752 AM |
296 | const Elf_Internal_Rela *, |
297 | struct elf32_hppa_link_hash_table *)); | |
edd21aca | 298 | |
30667bf3 | 299 | static struct elf32_hppa_stub_hash_entry *hppa_add_stub |
25f72752 | 300 | PARAMS ((const char *, asection *, struct elf32_hppa_link_hash_table *)); |
30667bf3 AM |
301 | |
302 | static enum elf32_hppa_stub_type hppa_type_of_stub | |
303 | PARAMS ((asection *, const Elf_Internal_Rela *, | |
304 | struct elf32_hppa_link_hash_entry *, bfd_vma)); | |
305 | ||
306 | static boolean hppa_build_one_stub | |
307 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
308 | ||
309 | static boolean hppa_size_one_stub | |
310 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
311 | ||
30667bf3 AM |
312 | /* BFD and elf backend functions. */ |
313 | static boolean elf32_hppa_object_p PARAMS ((bfd *)); | |
252b5132 | 314 | |
edd21aca AM |
315 | static boolean elf32_hppa_add_symbol_hook |
316 | PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, | |
317 | const char **, flagword *, asection **, bfd_vma *)); | |
252b5132 | 318 | |
30667bf3 AM |
319 | static boolean elf32_hppa_create_dynamic_sections |
320 | PARAMS ((bfd *, struct bfd_link_info *)); | |
252b5132 | 321 | |
ebe50bae AM |
322 | static void elf32_hppa_copy_indirect_symbol |
323 | PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *)); | |
324 | ||
30667bf3 AM |
325 | static boolean elf32_hppa_check_relocs |
326 | PARAMS ((bfd *, struct bfd_link_info *, | |
327 | asection *, const Elf_Internal_Rela *)); | |
328 | ||
329 | static asection *elf32_hppa_gc_mark_hook | |
330 | PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *, | |
331 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
332 | ||
333 | static boolean elf32_hppa_gc_sweep_hook | |
334 | PARAMS ((bfd *, struct bfd_link_info *, | |
335 | asection *, const Elf_Internal_Rela *)); | |
336 | ||
74d1c347 AM |
337 | static void elf32_hppa_hide_symbol |
338 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
339 | ||
30667bf3 AM |
340 | static boolean elf32_hppa_adjust_dynamic_symbol |
341 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
342 | ||
a8d02d66 AM |
343 | static boolean mark_PIC_calls |
344 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
345 | ||
e5ee5df1 | 346 | static boolean allocate_plt_static |
30667bf3 AM |
347 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
348 | ||
98ceb8ce AM |
349 | static boolean allocate_dynrelocs |
350 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
351 | ||
352 | static boolean readonly_dynrelocs | |
30667bf3 | 353 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
30667bf3 | 354 | |
d5c73c2f AM |
355 | static boolean clobber_millicode_symbols |
356 | PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *)); | |
357 | ||
30667bf3 AM |
358 | static boolean elf32_hppa_size_dynamic_sections |
359 | PARAMS ((bfd *, struct bfd_link_info *)); | |
360 | ||
c46b7515 AM |
361 | static boolean elf32_hppa_final_link |
362 | PARAMS ((bfd *, struct bfd_link_info *)); | |
363 | ||
364 | static void hppa_record_segment_addr | |
365 | PARAMS ((bfd *, asection *, PTR)); | |
366 | ||
30667bf3 AM |
367 | static bfd_reloc_status_type final_link_relocate |
368 | PARAMS ((asection *, bfd_byte *, const Elf_Internal_Rela *, | |
25f72752 | 369 | bfd_vma, struct elf32_hppa_link_hash_table *, asection *, |
30667bf3 AM |
370 | struct elf32_hppa_link_hash_entry *)); |
371 | ||
372 | static boolean elf32_hppa_relocate_section | |
373 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, | |
374 | bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
375 | ||
c46b7515 AM |
376 | static int hppa_unwind_entry_compare |
377 | PARAMS ((const PTR, const PTR)); | |
378 | ||
30667bf3 AM |
379 | static boolean elf32_hppa_finish_dynamic_symbol |
380 | PARAMS ((bfd *, struct bfd_link_info *, | |
381 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
382 | ||
98ceb8ce AM |
383 | static enum elf_reloc_type_class elf32_hppa_reloc_type_class |
384 | PARAMS ((const Elf_Internal_Rela *)); | |
385 | ||
30667bf3 AM |
386 | static boolean elf32_hppa_finish_dynamic_sections |
387 | PARAMS ((bfd *, struct bfd_link_info *)); | |
388 | ||
d952f17a AM |
389 | static void elf32_hppa_post_process_headers |
390 | PARAMS ((bfd *, struct bfd_link_info *)); | |
391 | ||
30667bf3 AM |
392 | static int elf32_hppa_elf_get_symbol_type |
393 | PARAMS ((Elf_Internal_Sym *, int)); | |
252b5132 | 394 | |
252b5132 RH |
395 | /* Assorted hash table functions. */ |
396 | ||
397 | /* Initialize an entry in the stub hash table. */ | |
398 | ||
399 | static struct bfd_hash_entry * | |
30667bf3 | 400 | stub_hash_newfunc (entry, table, string) |
252b5132 RH |
401 | struct bfd_hash_entry *entry; |
402 | struct bfd_hash_table *table; | |
403 | const char *string; | |
404 | { | |
252b5132 RH |
405 | /* Allocate the structure if it has not already been allocated by a |
406 | subclass. */ | |
ebe50bae | 407 | if (entry == NULL) |
30667bf3 | 408 | { |
ebe50bae AM |
409 | entry = bfd_hash_allocate (table, |
410 | sizeof (struct elf32_hppa_stub_hash_entry)); | |
411 | if (entry == NULL) | |
412 | return entry; | |
30667bf3 | 413 | } |
252b5132 RH |
414 | |
415 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
416 | entry = bfd_hash_newfunc (entry, table, string); |
417 | if (entry != NULL) | |
252b5132 | 418 | { |
ebe50bae AM |
419 | struct elf32_hppa_stub_hash_entry *eh; |
420 | ||
252b5132 | 421 | /* Initialize the local fields. */ |
ebe50bae AM |
422 | eh = (struct elf32_hppa_stub_hash_entry *) entry; |
423 | eh->stub_sec = NULL; | |
424 | eh->stub_offset = 0; | |
425 | eh->target_value = 0; | |
426 | eh->target_section = NULL; | |
427 | eh->stub_type = hppa_stub_long_branch; | |
428 | eh->h = NULL; | |
429 | eh->id_sec = NULL; | |
30667bf3 AM |
430 | } |
431 | ||
ebe50bae | 432 | return entry; |
30667bf3 AM |
433 | } |
434 | ||
30667bf3 AM |
435 | /* Initialize an entry in the link hash table. */ |
436 | ||
437 | static struct bfd_hash_entry * | |
438 | hppa_link_hash_newfunc (entry, table, string) | |
439 | struct bfd_hash_entry *entry; | |
440 | struct bfd_hash_table *table; | |
441 | const char *string; | |
442 | { | |
30667bf3 AM |
443 | /* Allocate the structure if it has not already been allocated by a |
444 | subclass. */ | |
ebe50bae | 445 | if (entry == NULL) |
30667bf3 | 446 | { |
ebe50bae AM |
447 | entry = bfd_hash_allocate (table, |
448 | sizeof (struct elf32_hppa_link_hash_entry)); | |
449 | if (entry == NULL) | |
450 | return entry; | |
30667bf3 AM |
451 | } |
452 | ||
453 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
454 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
455 | if (entry != NULL) | |
30667bf3 | 456 | { |
ebe50bae AM |
457 | struct elf32_hppa_link_hash_entry *eh; |
458 | ||
30667bf3 | 459 | /* Initialize the local fields. */ |
ebe50bae AM |
460 | eh = (struct elf32_hppa_link_hash_entry *) entry; |
461 | eh->stub_cache = NULL; | |
462 | eh->dyn_relocs = NULL; | |
463 | eh->maybe_pic_call = 0; | |
464 | eh->pic_call = 0; | |
465 | eh->plabel = 0; | |
252b5132 RH |
466 | } |
467 | ||
ebe50bae | 468 | return entry; |
252b5132 RH |
469 | } |
470 | ||
252b5132 RH |
471 | /* Create the derived linker hash table. The PA ELF port uses the derived |
472 | hash table to keep information specific to the PA ELF linker (without | |
473 | using static variables). */ | |
474 | ||
475 | static struct bfd_link_hash_table * | |
476 | elf32_hppa_link_hash_table_create (abfd) | |
477 | bfd *abfd; | |
478 | { | |
479 | struct elf32_hppa_link_hash_table *ret; | |
dc810e39 | 480 | bfd_size_type amt = sizeof (*ret); |
252b5132 | 481 | |
dc810e39 | 482 | ret = (struct elf32_hppa_link_hash_table *) bfd_alloc (abfd, amt); |
252b5132 RH |
483 | if (ret == NULL) |
484 | return NULL; | |
edd21aca | 485 | |
ebe50bae | 486 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, hppa_link_hash_newfunc)) |
252b5132 RH |
487 | { |
488 | bfd_release (abfd, ret); | |
489 | return NULL; | |
490 | } | |
edd21aca AM |
491 | |
492 | /* Init the stub hash table too. */ | |
30667bf3 | 493 | if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc)) |
edd21aca AM |
494 | return NULL; |
495 | ||
30667bf3 | 496 | ret->stub_bfd = NULL; |
30667bf3 AM |
497 | ret->add_stub_section = NULL; |
498 | ret->layout_sections_again = NULL; | |
25f72752 | 499 | ret->stub_group = NULL; |
30667bf3 AM |
500 | ret->sgot = NULL; |
501 | ret->srelgot = NULL; | |
502 | ret->splt = NULL; | |
503 | ret->srelplt = NULL; | |
504 | ret->sdynbss = NULL; | |
505 | ret->srelbss = NULL; | |
c46b7515 AM |
506 | ret->text_segment_base = (bfd_vma) -1; |
507 | ret->data_segment_base = (bfd_vma) -1; | |
47d89dba AM |
508 | ret->multi_subspace = 0; |
509 | ret->has_12bit_branch = 0; | |
510 | ret->has_17bit_branch = 0; | |
511 | ret->need_plt_stub = 0; | |
ec338859 | 512 | ret->sym_sec.abfd = NULL; |
252b5132 | 513 | |
ebe50bae | 514 | return &ret->elf.root; |
252b5132 RH |
515 | } |
516 | ||
30667bf3 AM |
517 | /* Build a name for an entry in the stub hash table. */ |
518 | ||
edd21aca | 519 | static char * |
30667bf3 | 520 | hppa_stub_name (input_section, sym_sec, hash, rel) |
edd21aca | 521 | const asection *input_section; |
30667bf3 AM |
522 | const asection *sym_sec; |
523 | const struct elf32_hppa_link_hash_entry *hash; | |
524 | const Elf_Internal_Rela *rel; | |
edd21aca AM |
525 | { |
526 | char *stub_name; | |
dc810e39 | 527 | bfd_size_type len; |
edd21aca | 528 | |
30667bf3 AM |
529 | if (hash) |
530 | { | |
531 | len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1; | |
532 | stub_name = bfd_malloc (len); | |
533 | if (stub_name != NULL) | |
534 | { | |
535 | sprintf (stub_name, "%08x_%s+%x", | |
536 | input_section->id & 0xffffffff, | |
537 | hash->elf.root.root.string, | |
538 | (int) rel->r_addend & 0xffffffff); | |
539 | } | |
540 | } | |
541 | else | |
edd21aca | 542 | { |
30667bf3 AM |
543 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
544 | stub_name = bfd_malloc (len); | |
545 | if (stub_name != NULL) | |
546 | { | |
547 | sprintf (stub_name, "%08x_%x:%x+%x", | |
548 | input_section->id & 0xffffffff, | |
549 | sym_sec->id & 0xffffffff, | |
550 | (int) ELF32_R_SYM (rel->r_info) & 0xffffffff, | |
551 | (int) rel->r_addend & 0xffffffff); | |
552 | } | |
edd21aca AM |
553 | } |
554 | return stub_name; | |
555 | } | |
252b5132 | 556 | |
30667bf3 AM |
557 | /* Look up an entry in the stub hash. Stub entries are cached because |
558 | creating the stub name takes a bit of time. */ | |
559 | ||
560 | static struct elf32_hppa_stub_hash_entry * | |
83c81bfe | 561 | hppa_get_stub_entry (input_section, sym_sec, hash, rel, htab) |
30667bf3 AM |
562 | const asection *input_section; |
563 | const asection *sym_sec; | |
564 | struct elf32_hppa_link_hash_entry *hash; | |
565 | const Elf_Internal_Rela *rel; | |
83c81bfe | 566 | struct elf32_hppa_link_hash_table *htab; |
252b5132 | 567 | { |
30667bf3 | 568 | struct elf32_hppa_stub_hash_entry *stub_entry; |
25f72752 AM |
569 | const asection *id_sec; |
570 | ||
571 | /* If this input section is part of a group of sections sharing one | |
572 | stub section, then use the id of the first section in the group. | |
573 | Stub names need to include a section id, as there may well be | |
574 | more than one stub used to reach say, printf, and we need to | |
575 | distinguish between them. */ | |
83c81bfe | 576 | id_sec = htab->stub_group[input_section->id].link_sec; |
edd21aca | 577 | |
30667bf3 AM |
578 | if (hash != NULL && hash->stub_cache != NULL |
579 | && hash->stub_cache->h == hash | |
25f72752 | 580 | && hash->stub_cache->id_sec == id_sec) |
edd21aca | 581 | { |
30667bf3 AM |
582 | stub_entry = hash->stub_cache; |
583 | } | |
584 | else | |
585 | { | |
30667bf3 | 586 | char *stub_name; |
edd21aca | 587 | |
25f72752 | 588 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, rel); |
30667bf3 AM |
589 | if (stub_name == NULL) |
590 | return NULL; | |
edd21aca | 591 | |
83c81bfe | 592 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
25f72752 | 593 | stub_name, false, false); |
30667bf3 AM |
594 | if (stub_entry == NULL) |
595 | { | |
596 | if (hash == NULL || hash->elf.root.type != bfd_link_hash_undefweak) | |
597 | (*_bfd_error_handler) (_("%s(%s+0x%lx): cannot find stub entry %s"), | |
8f615d07 | 598 | bfd_archive_filename (input_section->owner), |
30667bf3 AM |
599 | input_section->name, |
600 | (long) rel->r_offset, | |
601 | stub_name); | |
602 | } | |
603 | else | |
604 | { | |
605 | if (hash != NULL) | |
606 | hash->stub_cache = stub_entry; | |
607 | } | |
608 | ||
609 | free (stub_name); | |
edd21aca | 610 | } |
30667bf3 AM |
611 | |
612 | return stub_entry; | |
613 | } | |
614 | ||
30667bf3 AM |
615 | /* Add a new stub entry to the stub hash. Not all fields of the new |
616 | stub entry are initialised. */ | |
617 | ||
618 | static struct elf32_hppa_stub_hash_entry * | |
83c81bfe | 619 | hppa_add_stub (stub_name, section, htab) |
30667bf3 AM |
620 | const char *stub_name; |
621 | asection *section; | |
83c81bfe | 622 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 623 | { |
25f72752 | 624 | asection *link_sec; |
30667bf3 | 625 | asection *stub_sec; |
30667bf3 | 626 | struct elf32_hppa_stub_hash_entry *stub_entry; |
edd21aca | 627 | |
83c81bfe AM |
628 | link_sec = htab->stub_group[section->id].link_sec; |
629 | stub_sec = htab->stub_group[section->id].stub_sec; | |
30667bf3 | 630 | if (stub_sec == NULL) |
edd21aca | 631 | { |
83c81bfe | 632 | stub_sec = htab->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
633 | if (stub_sec == NULL) |
634 | { | |
dc810e39 | 635 | bfd_size_type len; |
30667bf3 AM |
636 | char *s_name; |
637 | ||
25f72752 | 638 | len = strlen (link_sec->name) + sizeof (STUB_SUFFIX); |
83c81bfe | 639 | s_name = bfd_alloc (htab->stub_bfd, len); |
30667bf3 AM |
640 | if (s_name == NULL) |
641 | return NULL; | |
642 | ||
25f72752 | 643 | strcpy (s_name, link_sec->name); |
30667bf3 | 644 | strcpy (s_name + len - sizeof (STUB_SUFFIX), STUB_SUFFIX); |
83c81bfe | 645 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
646 | if (stub_sec == NULL) |
647 | return NULL; | |
83c81bfe | 648 | htab->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 649 | } |
83c81bfe | 650 | htab->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 651 | } |
252b5132 | 652 | |
30667bf3 | 653 | /* Enter this entry into the linker stub hash table. */ |
83c81bfe | 654 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
30667bf3 AM |
655 | true, false); |
656 | if (stub_entry == NULL) | |
657 | { | |
658 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
8f615d07 | 659 | bfd_archive_filename (section->owner), |
30667bf3 AM |
660 | stub_name); |
661 | return NULL; | |
edd21aca AM |
662 | } |
663 | ||
30667bf3 | 664 | stub_entry->stub_sec = stub_sec; |
30667bf3 | 665 | stub_entry->stub_offset = 0; |
25f72752 | 666 | stub_entry->id_sec = link_sec; |
30667bf3 | 667 | return stub_entry; |
edd21aca AM |
668 | } |
669 | ||
30667bf3 AM |
670 | /* Determine the type of stub needed, if any, for a call. */ |
671 | ||
672 | static enum elf32_hppa_stub_type | |
673 | hppa_type_of_stub (input_sec, rel, hash, destination) | |
674 | asection *input_sec; | |
675 | const Elf_Internal_Rela *rel; | |
676 | struct elf32_hppa_link_hash_entry *hash; | |
677 | bfd_vma destination; | |
edd21aca | 678 | { |
edd21aca | 679 | bfd_vma location; |
30667bf3 AM |
680 | bfd_vma branch_offset; |
681 | bfd_vma max_branch_offset; | |
682 | unsigned int r_type; | |
683 | ||
684 | if (hash != NULL | |
685 | && (((hash->elf.root.type == bfd_link_hash_defined | |
74d1c347 AM |
686 | || hash->elf.root.type == bfd_link_hash_defweak) |
687 | && hash->elf.root.u.def.section->output_section == NULL) | |
688 | || (hash->elf.root.type == bfd_link_hash_defweak | |
689 | && hash->elf.dynindx != -1 | |
690 | && hash->elf.plt.offset != (bfd_vma) -1) | |
30667bf3 AM |
691 | || hash->elf.root.type == bfd_link_hash_undefweak |
692 | || hash->elf.root.type == bfd_link_hash_undefined | |
12cca0d2 | 693 | || (hash->maybe_pic_call && !(input_sec->flags & SEC_HAS_GOT_REF)))) |
30667bf3 AM |
694 | { |
695 | /* If output_section is NULL, then it's a symbol defined in a | |
696 | shared library. We will need an import stub. Decide between | |
74d1c347 AM |
697 | hppa_stub_import and hppa_stub_import_shared later. For |
698 | shared links we need stubs for undefined or weak syms too; | |
699 | They will presumably be resolved by the dynamic linker. */ | |
30667bf3 AM |
700 | return hppa_stub_import; |
701 | } | |
edd21aca | 702 | |
30667bf3 AM |
703 | /* Determine where the call point is. */ |
704 | location = (input_sec->output_offset | |
705 | + input_sec->output_section->vma | |
706 | + rel->r_offset); | |
edd21aca | 707 | |
30667bf3 AM |
708 | branch_offset = destination - location - 8; |
709 | r_type = ELF32_R_TYPE (rel->r_info); | |
edd21aca | 710 | |
30667bf3 AM |
711 | /* Determine if a long branch stub is needed. parisc branch offsets |
712 | are relative to the second instruction past the branch, ie. +8 | |
713 | bytes on from the branch instruction location. The offset is | |
714 | signed and counts in units of 4 bytes. */ | |
715 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 716 | { |
30667bf3 AM |
717 | max_branch_offset = (1 << (17-1)) << 2; |
718 | } | |
719 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
720 | { | |
721 | max_branch_offset = (1 << (12-1)) << 2; | |
722 | } | |
25f72752 | 723 | else /* R_PARISC_PCREL22F. */ |
30667bf3 AM |
724 | { |
725 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
726 | } |
727 | ||
30667bf3 | 728 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
729 | return hppa_stub_long_branch; |
730 | ||
30667bf3 AM |
731 | return hppa_stub_none; |
732 | } | |
edd21aca | 733 | |
30667bf3 AM |
734 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
735 | IN_ARG contains the link info pointer. */ | |
edd21aca | 736 | |
30667bf3 AM |
737 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
738 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 739 | |
30667bf3 | 740 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 741 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 742 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 743 | |
3ee1d854 AM |
744 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
745 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 746 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 747 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 748 | |
3ee1d854 AM |
749 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
750 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 751 | |
30667bf3 AM |
752 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
753 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
754 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
755 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 756 | |
30667bf3 AM |
757 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
758 | #define NOP 0x08000240 /* nop */ | |
759 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
760 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
761 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 762 | |
30667bf3 AM |
763 | #ifndef R19_STUBS |
764 | #define R19_STUBS 1 | |
765 | #endif | |
edd21aca | 766 | |
30667bf3 AM |
767 | #if R19_STUBS |
768 | #define LDW_R1_DLT LDW_R1_R19 | |
769 | #else | |
770 | #define LDW_R1_DLT LDW_R1_DP | |
771 | #endif | |
edd21aca | 772 | |
30667bf3 AM |
773 | static boolean |
774 | hppa_build_one_stub (gen_entry, in_arg) | |
775 | struct bfd_hash_entry *gen_entry; | |
776 | PTR in_arg; | |
777 | { | |
778 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
779 | struct bfd_link_info *info; | |
83c81bfe | 780 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
781 | asection *stub_sec; |
782 | bfd *stub_bfd; | |
783 | bfd_byte *loc; | |
784 | bfd_vma sym_value; | |
74d1c347 | 785 | bfd_vma insn; |
8dea1268 | 786 | bfd_vma off; |
74d1c347 | 787 | int val; |
30667bf3 | 788 | int size; |
edd21aca | 789 | |
30667bf3 AM |
790 | /* Massage our args to the form they really have. */ |
791 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
792 | info = (struct bfd_link_info *) in_arg; | |
793 | ||
83c81bfe | 794 | htab = hppa_link_hash_table (info); |
30667bf3 | 795 | stub_sec = stub_entry->stub_sec; |
edd21aca | 796 | |
30667bf3 | 797 | /* Make a note of the offset within the stubs for this entry. */ |
74d1c347 | 798 | stub_entry->stub_offset = stub_sec->_raw_size; |
30667bf3 | 799 | loc = stub_sec->contents + stub_entry->stub_offset; |
252b5132 | 800 | |
30667bf3 AM |
801 | stub_bfd = stub_sec->owner; |
802 | ||
803 | switch (stub_entry->stub_type) | |
804 | { | |
805 | case hppa_stub_long_branch: | |
806 | /* Create the long branch. A long branch is formed with "ldil" | |
807 | loading the upper bits of the target address into a register, | |
808 | then branching with "be" which adds in the lower bits. | |
809 | The "be" has its delay slot nullified. */ | |
810 | sym_value = (stub_entry->target_value | |
811 | + stub_entry->target_section->output_offset | |
812 | + stub_entry->target_section->output_section->vma); | |
813 | ||
74d1c347 AM |
814 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel); |
815 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); | |
30667bf3 AM |
816 | bfd_put_32 (stub_bfd, insn, loc); |
817 | ||
74d1c347 AM |
818 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel) >> 2; |
819 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); | |
30667bf3 AM |
820 | bfd_put_32 (stub_bfd, insn, loc + 4); |
821 | ||
30667bf3 | 822 | size = 8; |
edd21aca AM |
823 | break; |
824 | ||
30667bf3 AM |
825 | case hppa_stub_long_branch_shared: |
826 | /* Branches are relative. This is where we are going to. */ | |
827 | sym_value = (stub_entry->target_value | |
828 | + stub_entry->target_section->output_offset | |
829 | + stub_entry->target_section->output_section->vma); | |
830 | ||
831 | /* And this is where we are coming from, more or less. */ | |
832 | sym_value -= (stub_entry->stub_offset | |
833 | + stub_sec->output_offset | |
834 | + stub_sec->output_section->vma); | |
835 | ||
74d1c347 | 836 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 837 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 838 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
839 | bfd_put_32 (stub_bfd, insn, loc + 4); |
840 | ||
47d89dba | 841 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 842 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
843 | bfd_put_32 (stub_bfd, insn, loc + 8); |
844 | size = 12; | |
845 | break; | |
edd21aca | 846 | |
30667bf3 AM |
847 | case hppa_stub_import: |
848 | case hppa_stub_import_shared: | |
8dea1268 AM |
849 | off = stub_entry->h->elf.plt.offset; |
850 | if (off >= (bfd_vma) -2) | |
49e9d0d3 | 851 | abort (); |
8dea1268 AM |
852 | |
853 | off &= ~ (bfd_vma) 1; | |
854 | sym_value = (off | |
83c81bfe AM |
855 | + htab->splt->output_offset |
856 | + htab->splt->output_section->vma | |
857 | - elf_gp (htab->splt->output_section->owner)); | |
30667bf3 AM |
858 | |
859 | insn = ADDIL_DP; | |
860 | #if R19_STUBS | |
861 | if (stub_entry->stub_type == hppa_stub_import_shared) | |
862 | insn = ADDIL_R19; | |
863 | #endif | |
47d89dba | 864 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel), |
74d1c347 | 865 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 866 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 867 | |
47d89dba AM |
868 | /* It is critical to use lrsel/rrsel here because we are using |
869 | two different offsets (+0 and +4) from sym_value. If we use | |
870 | lsel/rsel then with unfortunate sym_values we will round | |
871 | sym_value+4 up to the next 2k block leading to a mis-match | |
872 | between the lsel and rsel value. */ | |
873 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel); | |
74d1c347 | 874 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 875 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 876 | |
83c81bfe | 877 | if (htab->multi_subspace) |
30667bf3 | 878 | { |
47d89dba | 879 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 880 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 881 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 882 | |
74d1c347 AM |
883 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
884 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
885 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
886 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 887 | |
30667bf3 AM |
888 | size = 28; |
889 | } | |
890 | else | |
891 | { | |
74d1c347 | 892 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 893 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 894 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 895 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 896 | |
30667bf3 AM |
897 | size = 16; |
898 | } | |
252b5132 | 899 | |
30667bf3 AM |
900 | if (!info->shared |
901 | && stub_entry->h != NULL | |
902 | && stub_entry->h->pic_call) | |
252b5132 | 903 | { |
30667bf3 AM |
904 | /* Build the .plt entry needed to call a PIC function from |
905 | statically linked code. We don't need any relocs. */ | |
906 | bfd *dynobj; | |
907 | struct elf32_hppa_link_hash_entry *eh; | |
908 | bfd_vma value; | |
252b5132 | 909 | |
ebe50bae | 910 | dynobj = htab->elf.dynobj; |
30667bf3 | 911 | eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h; |
252b5132 | 912 | |
49e9d0d3 AM |
913 | if (eh->elf.root.type != bfd_link_hash_defined |
914 | && eh->elf.root.type != bfd_link_hash_defweak) | |
915 | abort (); | |
252b5132 | 916 | |
30667bf3 AM |
917 | value = (eh->elf.root.u.def.value |
918 | + eh->elf.root.u.def.section->output_offset | |
919 | + eh->elf.root.u.def.section->output_section->vma); | |
252b5132 | 920 | |
30667bf3 | 921 | /* Fill in the entry in the procedure linkage table. |
252b5132 | 922 | |
30667bf3 | 923 | The format of a plt entry is |
74d1c347 AM |
924 | <funcaddr> |
925 | <__gp>. */ | |
252b5132 | 926 | |
83c81bfe AM |
927 | bfd_put_32 (htab->splt->owner, value, |
928 | htab->splt->contents + off); | |
929 | value = elf_gp (htab->splt->output_section->owner); | |
930 | bfd_put_32 (htab->splt->owner, value, | |
931 | htab->splt->contents + off + 4); | |
252b5132 | 932 | } |
30667bf3 | 933 | break; |
252b5132 | 934 | |
30667bf3 AM |
935 | case hppa_stub_export: |
936 | /* Branches are relative. This is where we are going to. */ | |
937 | sym_value = (stub_entry->target_value | |
938 | + stub_entry->target_section->output_offset | |
939 | + stub_entry->target_section->output_section->vma); | |
252b5132 | 940 | |
30667bf3 AM |
941 | /* And this is where we are coming from. */ |
942 | sym_value -= (stub_entry->stub_offset | |
943 | + stub_sec->output_offset | |
944 | + stub_sec->output_section->vma); | |
edd21aca | 945 | |
30667bf3 AM |
946 | if (sym_value - 8 + 0x40000 >= 0x80000) |
947 | { | |
edd21aca | 948 | (*_bfd_error_handler) |
30667bf3 | 949 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
8f615d07 | 950 | bfd_archive_filename (stub_entry->target_section->owner), |
30667bf3 AM |
951 | stub_sec->name, |
952 | (long) stub_entry->stub_offset, | |
953 | stub_entry->root.string); | |
954 | bfd_set_error (bfd_error_bad_value); | |
edd21aca | 955 | return false; |
252b5132 | 956 | } |
30667bf3 | 957 | |
74d1c347 AM |
958 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
959 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
30667bf3 AM |
960 | bfd_put_32 (stub_bfd, insn, loc); |
961 | ||
74d1c347 AM |
962 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
963 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
964 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
965 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
966 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
967 | |
968 | /* Point the function symbol at the stub. */ | |
969 | stub_entry->h->elf.root.u.def.section = stub_sec; | |
74d1c347 | 970 | stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size; |
30667bf3 AM |
971 | |
972 | size = 24; | |
973 | break; | |
974 | ||
975 | default: | |
976 | BFD_FAIL (); | |
977 | return false; | |
252b5132 RH |
978 | } |
979 | ||
74d1c347 | 980 | stub_sec->_raw_size += size; |
252b5132 RH |
981 | return true; |
982 | } | |
983 | ||
30667bf3 AM |
984 | #undef LDIL_R1 |
985 | #undef BE_SR4_R1 | |
986 | #undef BL_R1 | |
987 | #undef ADDIL_R1 | |
988 | #undef DEPI_R1 | |
989 | #undef ADDIL_DP | |
990 | #undef LDW_R1_R21 | |
991 | #undef LDW_R1_DLT | |
992 | #undef LDW_R1_R19 | |
993 | #undef ADDIL_R19 | |
994 | #undef LDW_R1_DP | |
995 | #undef LDSID_R21_R1 | |
996 | #undef MTSP_R1 | |
997 | #undef BE_SR0_R21 | |
998 | #undef STW_RP | |
999 | #undef BV_R0_R21 | |
1000 | #undef BL_RP | |
1001 | #undef NOP | |
1002 | #undef LDW_RP | |
1003 | #undef LDSID_RP_R1 | |
1004 | #undef BE_SR0_RP | |
252b5132 | 1005 | |
30667bf3 AM |
1006 | /* As above, but don't actually build the stub. Just bump offset so |
1007 | we know stub section sizes. */ | |
1008 | ||
1009 | static boolean | |
1010 | hppa_size_one_stub (gen_entry, in_arg) | |
1011 | struct bfd_hash_entry *gen_entry; | |
1012 | PTR in_arg; | |
252b5132 | 1013 | { |
30667bf3 | 1014 | struct elf32_hppa_stub_hash_entry *stub_entry; |
83c81bfe | 1015 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1016 | int size; |
1017 | ||
1018 | /* Massage our args to the form they really have. */ | |
1019 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
83c81bfe | 1020 | htab = (struct elf32_hppa_link_hash_table *) in_arg; |
30667bf3 AM |
1021 | |
1022 | if (stub_entry->stub_type == hppa_stub_long_branch) | |
98ceb8ce | 1023 | size = 8; |
30667bf3 AM |
1024 | else if (stub_entry->stub_type == hppa_stub_long_branch_shared) |
1025 | size = 12; | |
1026 | else if (stub_entry->stub_type == hppa_stub_export) | |
1027 | size = 24; | |
74d1c347 | 1028 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 1029 | { |
83c81bfe | 1030 | if (htab->multi_subspace) |
30667bf3 AM |
1031 | size = 28; |
1032 | else | |
1033 | size = 16; | |
1034 | } | |
252b5132 | 1035 | |
74d1c347 | 1036 | stub_entry->stub_sec->_raw_size += size; |
30667bf3 AM |
1037 | return true; |
1038 | } | |
252b5132 | 1039 | |
30667bf3 AM |
1040 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
1041 | Additionally we set the default architecture and machine. */ | |
1042 | ||
1043 | static boolean | |
1044 | elf32_hppa_object_p (abfd) | |
1045 | bfd *abfd; | |
1046 | { | |
24a5e751 L |
1047 | Elf_Internal_Ehdr * i_ehdrp; |
1048 | unsigned int flags; | |
252b5132 | 1049 | |
24a5e751 L |
1050 | i_ehdrp = elf_elfheader (abfd); |
1051 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
1052 | { | |
1053 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX) | |
1054 | return false; | |
1055 | } | |
1056 | else | |
1057 | { | |
1058 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
1059 | return false; | |
1060 | } | |
1061 | ||
1062 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
1063 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
1064 | { | |
1065 | case EFA_PARISC_1_0: | |
1066 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
1067 | case EFA_PARISC_1_1: | |
1068 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
1069 | case EFA_PARISC_2_0: | |
1070 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
1071 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
1072 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
1073 | } | |
1074 | return true; | |
252b5132 RH |
1075 | } |
1076 | ||
252b5132 RH |
1077 | /* Undo the generic ELF code's subtraction of section->vma from the |
1078 | value of each external symbol. */ | |
1079 | ||
1080 | static boolean | |
1081 | elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
5f771d47 ILT |
1082 | bfd *abfd ATTRIBUTE_UNUSED; |
1083 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1084 | const Elf_Internal_Sym *sym ATTRIBUTE_UNUSED; | |
1085 | const char **namep ATTRIBUTE_UNUSED; | |
1086 | flagword *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
1087 | asection **secp; |
1088 | bfd_vma *valp; | |
1089 | { | |
1090 | *valp += (*secp)->vma; | |
1091 | return true; | |
1092 | } | |
1093 | ||
30667bf3 AM |
1094 | /* Create the .plt and .got sections, and set up our hash table |
1095 | short-cuts to various dynamic sections. */ | |
1096 | ||
1097 | static boolean | |
1098 | elf32_hppa_create_dynamic_sections (abfd, info) | |
1099 | bfd *abfd; | |
1100 | struct bfd_link_info *info; | |
252b5132 | 1101 | { |
83c81bfe | 1102 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 1103 | |
30667bf3 | 1104 | /* Don't try to create the .plt and .got twice. */ |
83c81bfe AM |
1105 | htab = hppa_link_hash_table (info); |
1106 | if (htab->splt != NULL) | |
30667bf3 | 1107 | return true; |
edd21aca | 1108 | |
30667bf3 AM |
1109 | /* Call the generic code to do most of the work. */ |
1110 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
1111 | return false; | |
252b5132 | 1112 | |
83c81bfe AM |
1113 | htab->splt = bfd_get_section_by_name (abfd, ".plt"); |
1114 | htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
30667bf3 | 1115 | |
83c81bfe AM |
1116 | htab->sgot = bfd_get_section_by_name (abfd, ".got"); |
1117 | htab->srelgot = bfd_make_section (abfd, ".rela.got"); | |
1118 | if (htab->srelgot == NULL | |
1119 | || ! bfd_set_section_flags (abfd, htab->srelgot, | |
30667bf3 AM |
1120 | (SEC_ALLOC |
1121 | | SEC_LOAD | |
1122 | | SEC_HAS_CONTENTS | |
1123 | | SEC_IN_MEMORY | |
1124 | | SEC_LINKER_CREATED | |
1125 | | SEC_READONLY)) | |
83c81bfe | 1126 | || ! bfd_set_section_alignment (abfd, htab->srelgot, 2)) |
30667bf3 | 1127 | return false; |
edd21aca | 1128 | |
83c81bfe AM |
1129 | htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
1130 | htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
30667bf3 AM |
1131 | |
1132 | return true; | |
1133 | } | |
1134 | ||
ebe50bae AM |
1135 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1136 | ||
51b64d56 | 1137 | static void |
ebe50bae AM |
1138 | elf32_hppa_copy_indirect_symbol (dir, ind) |
1139 | struct elf_link_hash_entry *dir, *ind; | |
1140 | { | |
1141 | struct elf32_hppa_link_hash_entry *edir, *eind; | |
1142 | ||
1143 | edir = (struct elf32_hppa_link_hash_entry *) dir; | |
1144 | eind = (struct elf32_hppa_link_hash_entry *) ind; | |
1145 | ||
bbd7ec4a | 1146 | if (eind->dyn_relocs != NULL) |
ebe50bae | 1147 | { |
bbd7ec4a AM |
1148 | if (edir->dyn_relocs != NULL) |
1149 | { | |
1150 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1151 | struct elf32_hppa_dyn_reloc_entry *p; | |
1152 | ||
1e370bd2 | 1153 | if (ind->root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
1154 | abort (); |
1155 | ||
1156 | /* Add reloc counts against the weak sym to the strong sym | |
1157 | list. Merge any entries against the same section. */ | |
1158 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
1159 | { | |
1160 | struct elf32_hppa_dyn_reloc_entry *q; | |
1161 | ||
1162 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
1163 | if (q->sec == p->sec) | |
1164 | { | |
1165 | #if RELATIVE_DYNRELOCS | |
1166 | q->relative_count += p->relative_count; | |
1167 | #endif | |
1168 | q->count += p->count; | |
1169 | *pp = p->next; | |
1170 | break; | |
1171 | } | |
1172 | if (q == NULL) | |
1173 | pp = &p->next; | |
1174 | } | |
1175 | *pp = edir->dyn_relocs; | |
1176 | } | |
1177 | ||
ebe50bae AM |
1178 | edir->dyn_relocs = eind->dyn_relocs; |
1179 | eind->dyn_relocs = NULL; | |
1180 | } | |
ebe50bae AM |
1181 | |
1182 | _bfd_elf_link_hash_copy_indirect (dir, ind); | |
1183 | } | |
1184 | ||
30667bf3 | 1185 | /* Look through the relocs for a section during the first phase, and |
3ac8354b AM |
1186 | calculate needed space in the global offset table, procedure linkage |
1187 | table, and dynamic reloc sections. At this point we haven't | |
1188 | necessarily read all the input files. */ | |
252b5132 RH |
1189 | |
1190 | static boolean | |
30667bf3 AM |
1191 | elf32_hppa_check_relocs (abfd, info, sec, relocs) |
1192 | bfd *abfd; | |
1193 | struct bfd_link_info *info; | |
1194 | asection *sec; | |
1195 | const Elf_Internal_Rela *relocs; | |
252b5132 | 1196 | { |
30667bf3 AM |
1197 | Elf_Internal_Shdr *symtab_hdr; |
1198 | struct elf_link_hash_entry **sym_hashes; | |
30667bf3 AM |
1199 | const Elf_Internal_Rela *rel; |
1200 | const Elf_Internal_Rela *rel_end; | |
83c81bfe | 1201 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1202 | asection *sreloc; |
1203 | asection *stubreloc; | |
1204 | ||
1205 | if (info->relocateable) | |
1206 | return true; | |
1207 | ||
83c81bfe | 1208 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1209 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1210 | sym_hashes = elf_sym_hashes (abfd); | |
30667bf3 AM |
1211 | sreloc = NULL; |
1212 | stubreloc = NULL; | |
1213 | ||
1214 | rel_end = relocs + sec->reloc_count; | |
1215 | for (rel = relocs; rel < rel_end; rel++) | |
1216 | { | |
1217 | enum { | |
1218 | NEED_GOT = 1, | |
1219 | NEED_PLT = 2, | |
1220 | NEED_DYNREL = 4, | |
98ceb8ce | 1221 | PLT_PLABEL = 8 |
30667bf3 | 1222 | }; |
edd21aca | 1223 | |
30667bf3 AM |
1224 | unsigned int r_symndx, r_type; |
1225 | struct elf32_hppa_link_hash_entry *h; | |
1226 | int need_entry; | |
252b5132 | 1227 | |
30667bf3 | 1228 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 | 1229 | |
30667bf3 AM |
1230 | if (r_symndx < symtab_hdr->sh_info) |
1231 | h = NULL; | |
1232 | else | |
1233 | h = ((struct elf32_hppa_link_hash_entry *) | |
1234 | sym_hashes[r_symndx - symtab_hdr->sh_info]); | |
252b5132 | 1235 | |
30667bf3 | 1236 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 | 1237 | |
30667bf3 AM |
1238 | switch (r_type) |
1239 | { | |
1240 | case R_PARISC_DLTIND14F: | |
1241 | case R_PARISC_DLTIND14R: | |
1242 | case R_PARISC_DLTIND21L: | |
1243 | /* This symbol requires a global offset table entry. */ | |
1244 | need_entry = NEED_GOT; | |
1245 | ||
1246 | /* Mark this section as containing PIC code. */ | |
1247 | sec->flags |= SEC_HAS_GOT_REF; | |
1248 | break; | |
1249 | ||
1250 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1251 | case R_PARISC_PLABEL21L: | |
1252 | case R_PARISC_PLABEL32: | |
74d1c347 | 1253 | /* If the addend is non-zero, we break badly. */ |
49e9d0d3 AM |
1254 | if (rel->r_addend != 0) |
1255 | abort (); | |
74d1c347 AM |
1256 | |
1257 | /* If we are creating a shared library, then we need to | |
1258 | create a PLT entry for all PLABELs, because PLABELs with | |
1259 | local symbols may be passed via a pointer to another | |
1260 | object. Additionally, output a dynamic relocation | |
4dc86686 AM |
1261 | pointing to the PLT entry. |
1262 | For executables, the original 32-bit ABI allowed two | |
1263 | different styles of PLABELs (function pointers): For | |
1264 | global functions, the PLABEL word points into the .plt | |
1265 | two bytes past a (function address, gp) pair, and for | |
1266 | local functions the PLABEL points directly at the | |
1267 | function. The magic +2 for the first type allows us to | |
1268 | differentiate between the two. As you can imagine, this | |
1269 | is a real pain when it comes to generating code to call | |
1270 | functions indirectly or to compare function pointers. | |
1271 | We avoid the mess by always pointing a PLABEL into the | |
1272 | .plt, even for local functions. */ | |
74d1c347 | 1273 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1274 | break; |
1275 | ||
1276 | case R_PARISC_PCREL12F: | |
83c81bfe | 1277 | htab->has_12bit_branch = 1; |
47d89dba | 1278 | /* Fall thru. */ |
30667bf3 AM |
1279 | case R_PARISC_PCREL17C: |
1280 | case R_PARISC_PCREL17F: | |
83c81bfe | 1281 | htab->has_17bit_branch = 1; |
47d89dba | 1282 | /* Fall thru. */ |
30667bf3 | 1283 | case R_PARISC_PCREL22F: |
47d89dba AM |
1284 | /* Function calls might need to go through the .plt, and |
1285 | might require long branch stubs. */ | |
30667bf3 AM |
1286 | if (h == NULL) |
1287 | { | |
1288 | /* We know local syms won't need a .plt entry, and if | |
1289 | they need a long branch stub we can't guarantee that | |
1290 | we can reach the stub. So just flag an error later | |
1291 | if we're doing a shared link and find we need a long | |
1292 | branch stub. */ | |
1293 | continue; | |
1294 | } | |
1295 | else | |
1296 | { | |
1297 | /* Global symbols will need a .plt entry if they remain | |
1298 | global, and in most cases won't need a long branch | |
1299 | stub. Unfortunately, we have to cater for the case | |
1300 | where a symbol is forced local by versioning, or due | |
1301 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1302 | need_entry = NEED_PLT; |
4dc86686 | 1303 | if (h->elf.type == STT_PARISC_MILLI) |
98ceb8ce | 1304 | need_entry = 0; |
30667bf3 AM |
1305 | } |
1306 | break; | |
1307 | ||
1308 | case R_PARISC_SEGBASE: /* Used to set segment base. */ | |
c46b7515 | 1309 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1310 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1311 | case R_PARISC_PCREL14R: | |
1312 | case R_PARISC_PCREL17R: /* External branches. */ | |
1313 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
1314 | /* We don't need to propagate the relocation if linking a | |
1315 | shared object since these are section relative. */ | |
1316 | continue; | |
1317 | ||
1318 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1319 | case R_PARISC_DPREL14R: | |
1320 | case R_PARISC_DPREL21L: | |
1321 | if (info->shared) | |
1322 | { | |
1323 | (*_bfd_error_handler) | |
1324 | (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1325 | bfd_archive_filename (abfd), |
30667bf3 AM |
1326 | elf_hppa_howto_table[r_type].name); |
1327 | bfd_set_error (bfd_error_bad_value); | |
1328 | return false; | |
1329 | } | |
1330 | /* Fall through. */ | |
1331 | ||
1332 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1333 | case R_PARISC_DIR17R: | |
47d89dba AM |
1334 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1335 | case R_PARISC_DIR14R: | |
30667bf3 AM |
1336 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
1337 | #if 1 | |
1338 | /* Help debug shared library creation. Any of the above | |
1339 | relocs can be used in shared libs, but they may cause | |
1340 | pages to become unshared. */ | |
1341 | if (info->shared) | |
1342 | { | |
1343 | (*_bfd_error_handler) | |
1344 | (_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1345 | bfd_archive_filename (abfd), |
30667bf3 AM |
1346 | elf_hppa_howto_table[r_type].name); |
1347 | } | |
1348 | /* Fall through. */ | |
1349 | #endif | |
1350 | ||
c46b7515 | 1351 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1352 | /* We may want to output a dynamic relocation later. */ |
1353 | need_entry = NEED_DYNREL; | |
1354 | break; | |
1355 | ||
1356 | /* This relocation describes the C++ object vtable hierarchy. | |
1357 | Reconstruct it for later use during GC. */ | |
1358 | case R_PARISC_GNU_VTINHERIT: | |
1359 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, | |
1360 | &h->elf, rel->r_offset)) | |
1361 | return false; | |
1362 | continue; | |
1363 | ||
1364 | /* This relocation describes which C++ vtable entries are actually | |
1365 | used. Record for later use during GC. */ | |
1366 | case R_PARISC_GNU_VTENTRY: | |
1367 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, | |
36605136 | 1368 | &h->elf, rel->r_addend)) |
30667bf3 AM |
1369 | return false; |
1370 | continue; | |
1371 | ||
1372 | default: | |
1373 | continue; | |
1374 | } | |
1375 | ||
1376 | /* Now carry out our orders. */ | |
1377 | if (need_entry & NEED_GOT) | |
1378 | { | |
1379 | /* Allocate space for a GOT entry, as well as a dynamic | |
25f72752 | 1380 | relocation for this entry. */ |
83c81bfe | 1381 | if (htab->sgot == NULL) |
30667bf3 | 1382 | { |
3ac8354b AM |
1383 | if (htab->elf.dynobj == NULL) |
1384 | htab->elf.dynobj = abfd; | |
1385 | if (!elf32_hppa_create_dynamic_sections (htab->elf.dynobj, info)) | |
30667bf3 AM |
1386 | return false; |
1387 | } | |
1388 | ||
1389 | if (h != NULL) | |
1390 | { | |
51b64d56 | 1391 | h->elf.got.refcount += 1; |
30667bf3 AM |
1392 | } |
1393 | else | |
1394 | { | |
3ac8354b AM |
1395 | bfd_signed_vma *local_got_refcounts; |
1396 | ||
30667bf3 | 1397 | /* This is a global offset table entry for a local symbol. */ |
3ac8354b | 1398 | local_got_refcounts = elf_local_got_refcounts (abfd); |
30667bf3 AM |
1399 | if (local_got_refcounts == NULL) |
1400 | { | |
dc810e39 | 1401 | bfd_size_type size; |
30667bf3 | 1402 | |
74d1c347 AM |
1403 | /* Allocate space for local got offsets and local |
1404 | plt offsets. Done this way to save polluting | |
1405 | elf_obj_tdata with another target specific | |
1406 | pointer. */ | |
dc810e39 AM |
1407 | size = symtab_hdr->sh_info; |
1408 | size *= 2 * sizeof (bfd_signed_vma); | |
30667bf3 | 1409 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1410 | bfd_zalloc (abfd, size)); |
30667bf3 AM |
1411 | if (local_got_refcounts == NULL) |
1412 | return false; | |
1413 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
30667bf3 | 1414 | } |
ebe50bae | 1415 | local_got_refcounts[r_symndx] += 1; |
30667bf3 AM |
1416 | } |
1417 | } | |
1418 | ||
1419 | if (need_entry & NEED_PLT) | |
1420 | { | |
1421 | /* If we are creating a shared library, and this is a reloc | |
1422 | against a weak symbol or a global symbol in a dynamic | |
1423 | object, then we will be creating an import stub and a | |
1424 | .plt entry for the symbol. Similarly, on a normal link | |
1425 | to symbols defined in a dynamic object we'll need the | |
1426 | import stub and a .plt entry. We don't know yet whether | |
1427 | the symbol is defined or not, so make an entry anyway and | |
1428 | clean up later in adjust_dynamic_symbol. */ | |
1429 | if ((sec->flags & SEC_ALLOC) != 0) | |
1430 | { | |
74d1c347 | 1431 | if (h != NULL) |
30667bf3 | 1432 | { |
51b64d56 AM |
1433 | h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
1434 | h->elf.plt.refcount += 1; | |
74d1c347 | 1435 | |
36605136 AM |
1436 | /* If this .plt entry is for a plabel, mark it so |
1437 | that adjust_dynamic_symbol will keep the entry | |
1438 | even if it appears to be local. */ | |
74d1c347 AM |
1439 | if (need_entry & PLT_PLABEL) |
1440 | h->plabel = 1; | |
1441 | } | |
1442 | else if (need_entry & PLT_PLABEL) | |
1443 | { | |
3ac8354b | 1444 | bfd_signed_vma *local_got_refcounts; |
68fb2e56 | 1445 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 | 1446 | |
3ac8354b | 1447 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1448 | if (local_got_refcounts == NULL) |
1449 | { | |
dc810e39 | 1450 | bfd_size_type size; |
74d1c347 AM |
1451 | |
1452 | /* Allocate space for local got offsets and local | |
1453 | plt offsets. */ | |
dc810e39 AM |
1454 | size = symtab_hdr->sh_info; |
1455 | size *= 2 * sizeof (bfd_signed_vma); | |
74d1c347 | 1456 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1457 | bfd_zalloc (abfd, size)); |
74d1c347 AM |
1458 | if (local_got_refcounts == NULL) |
1459 | return false; | |
1460 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
74d1c347 | 1461 | } |
68fb2e56 AM |
1462 | local_plt_refcounts = (local_got_refcounts |
1463 | + symtab_hdr->sh_info); | |
ebe50bae | 1464 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1465 | } |
30667bf3 AM |
1466 | } |
1467 | } | |
1468 | ||
98ceb8ce | 1469 | if (need_entry & NEED_DYNREL) |
30667bf3 AM |
1470 | { |
1471 | /* Flag this symbol as having a non-got, non-plt reference | |
1472 | so that we generate copy relocs if it turns out to be | |
1473 | dynamic. */ | |
ebe50bae | 1474 | if (h != NULL && !info->shared) |
30667bf3 AM |
1475 | h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; |
1476 | ||
1477 | /* If we are creating a shared library then we need to copy | |
1478 | the reloc into the shared library. However, if we are | |
1479 | linking with -Bsymbolic, we need only copy absolute | |
1480 | relocs or relocs against symbols that are not defined in | |
1481 | an object we are including in the link. PC- or DP- or | |
1482 | DLT-relative relocs against any local sym or global sym | |
1483 | with DEF_REGULAR set, can be discarded. At this point we | |
1484 | have not seen all the input files, so it is possible that | |
1485 | DEF_REGULAR is not set now but will be set later (it is | |
1486 | never cleared). We account for that possibility below by | |
98ceb8ce | 1487 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1488 | hash table entry. |
1489 | ||
1490 | A similar situation to the -Bsymbolic case occurs when | |
1491 | creating shared libraries and symbol visibility changes | |
1492 | render the symbol local. | |
1493 | ||
1494 | As it turns out, all the relocs we will be creating here | |
1495 | are absolute, so we cannot remove them on -Bsymbolic | |
1496 | links or visibility changes anyway. A STUB_REL reloc | |
1497 | is absolute too, as in that case it is the reloc in the | |
1498 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1499 | reloc in the branch. |
1500 | ||
1501 | If on the other hand, we are creating an executable, we | |
1502 | may need to keep relocations for symbols satisfied by a | |
1503 | dynamic library if we manage to avoid copy relocs for the | |
1504 | symbol. */ | |
446f2863 AM |
1505 | if ((info->shared |
1506 | && (sec->flags & SEC_ALLOC) != 0 | |
1507 | && (IS_ABSOLUTE_RELOC (r_type) | |
1508 | || (h != NULL | |
1509 | && (!info->symbolic | |
1510 | || h->elf.root.type == bfd_link_hash_defweak | |
1511 | || (h->elf.elf_link_hash_flags | |
1512 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1513 | || (!info->shared | |
1514 | && (sec->flags & SEC_ALLOC) != 0 | |
1515 | && h != NULL | |
446f2863 AM |
1516 | && (h->elf.root.type == bfd_link_hash_defweak |
1517 | || (h->elf.elf_link_hash_flags | |
1518 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
30667bf3 | 1519 | { |
ec338859 AM |
1520 | struct elf32_hppa_dyn_reloc_entry *p; |
1521 | struct elf32_hppa_dyn_reloc_entry **head; | |
1522 | ||
30667bf3 AM |
1523 | /* Create a reloc section in dynobj and make room for |
1524 | this reloc. */ | |
98ceb8ce | 1525 | if (sreloc == NULL) |
30667bf3 AM |
1526 | { |
1527 | char *name; | |
3ac8354b | 1528 | bfd *dynobj; |
30667bf3 | 1529 | |
98ceb8ce AM |
1530 | name = (bfd_elf_string_from_elf_section |
1531 | (abfd, | |
1532 | elf_elfheader (abfd)->e_shstrndx, | |
1533 | elf_section_data (sec)->rel_hdr.sh_name)); | |
30667bf3 AM |
1534 | if (name == NULL) |
1535 | { | |
1536 | (*_bfd_error_handler) | |
1537 | (_("Could not find relocation section for %s"), | |
1538 | sec->name); | |
1539 | bfd_set_error (bfd_error_bad_value); | |
1540 | return false; | |
1541 | } | |
1542 | ||
3ac8354b AM |
1543 | if (htab->elf.dynobj == NULL) |
1544 | htab->elf.dynobj = abfd; | |
1545 | ||
1546 | dynobj = htab->elf.dynobj; | |
98ceb8ce AM |
1547 | sreloc = bfd_get_section_by_name (dynobj, name); |
1548 | if (sreloc == NULL) | |
30667bf3 AM |
1549 | { |
1550 | flagword flags; | |
1551 | ||
98ceb8ce | 1552 | sreloc = bfd_make_section (dynobj, name); |
30667bf3 AM |
1553 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1554 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1555 | if ((sec->flags & SEC_ALLOC) != 0) | |
1556 | flags |= SEC_ALLOC | SEC_LOAD; | |
98ceb8ce AM |
1557 | if (sreloc == NULL |
1558 | || !bfd_set_section_flags (dynobj, sreloc, flags) | |
1559 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) | |
30667bf3 AM |
1560 | return false; |
1561 | } | |
30667bf3 | 1562 | |
98ceb8ce | 1563 | elf_section_data (sec)->sreloc = sreloc; |
30667bf3 AM |
1564 | } |
1565 | ||
98ceb8ce AM |
1566 | /* If this is a global symbol, we count the number of |
1567 | relocations we need for this symbol. */ | |
1568 | if (h != NULL) | |
30667bf3 | 1569 | { |
ec338859 AM |
1570 | head = &h->dyn_relocs; |
1571 | } | |
1572 | else | |
1573 | { | |
1574 | /* Track dynamic relocs needed for local syms too. | |
1575 | We really need local syms available to do this | |
1576 | easily. Oh well. */ | |
1577 | ||
1578 | asection *s; | |
1579 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
1580 | sec, r_symndx); | |
1581 | if (s == NULL) | |
1582 | return false; | |
30667bf3 | 1583 | |
ec338859 AM |
1584 | head = ((struct elf32_hppa_dyn_reloc_entry **) |
1585 | &elf_section_data (s)->local_dynrel); | |
1586 | } | |
1587 | ||
1588 | p = *head; | |
1589 | if (p == NULL || p->sec != sec) | |
1590 | { | |
1591 | p = ((struct elf32_hppa_dyn_reloc_entry *) | |
1592 | bfd_alloc (htab->elf.dynobj, | |
1593 | (bfd_size_type) sizeof *p)); | |
1594 | if (p == NULL) | |
1595 | return false; | |
1596 | p->next = *head; | |
1597 | *head = p; | |
1598 | p->sec = sec; | |
1599 | p->count = 0; | |
98ceb8ce | 1600 | #if RELATIVE_DYNRELOCS |
ec338859 | 1601 | p->relative_count = 0; |
98ceb8ce | 1602 | #endif |
ec338859 | 1603 | } |
98ceb8ce | 1604 | |
ec338859 | 1605 | p->count += 1; |
98ceb8ce | 1606 | #if RELATIVE_DYNRELOCS |
ec338859 AM |
1607 | if (!IS_ABSOLUTE_RELOC (rtype)) |
1608 | p->relative_count += 1; | |
98ceb8ce | 1609 | #endif |
30667bf3 AM |
1610 | } |
1611 | } | |
1612 | } | |
edd21aca AM |
1613 | |
1614 | return true; | |
1615 | } | |
1616 | ||
30667bf3 AM |
1617 | /* Return the section that should be marked against garbage collection |
1618 | for a given relocation. */ | |
1619 | ||
1620 | static asection * | |
1621 | elf32_hppa_gc_mark_hook (abfd, info, rel, h, sym) | |
1622 | bfd *abfd; | |
1623 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1624 | Elf_Internal_Rela *rel; | |
1625 | struct elf_link_hash_entry *h; | |
1626 | Elf_Internal_Sym *sym; | |
1627 | { | |
1628 | if (h != NULL) | |
1629 | { | |
1630 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1631 | { | |
1632 | case R_PARISC_GNU_VTINHERIT: | |
1633 | case R_PARISC_GNU_VTENTRY: | |
1634 | break; | |
1635 | ||
1636 | default: | |
1637 | switch (h->root.type) | |
1638 | { | |
1639 | case bfd_link_hash_defined: | |
1640 | case bfd_link_hash_defweak: | |
1641 | return h->root.u.def.section; | |
1642 | ||
1643 | case bfd_link_hash_common: | |
1644 | return h->root.u.c.p->section; | |
1645 | ||
1646 | default: | |
1647 | break; | |
1648 | } | |
1649 | } | |
1650 | } | |
1651 | else | |
1652 | { | |
1653 | if (!(elf_bad_symtab (abfd) | |
1654 | && ELF_ST_BIND (sym->st_info) != STB_LOCAL) | |
1655 | && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) | |
1656 | && sym->st_shndx != SHN_COMMON)) | |
1657 | { | |
1658 | return bfd_section_from_elf_index (abfd, sym->st_shndx); | |
1659 | } | |
1660 | } | |
1661 | ||
1662 | return NULL; | |
1663 | } | |
1664 | ||
30667bf3 AM |
1665 | /* Update the got and plt entry reference counts for the section being |
1666 | removed. */ | |
edd21aca AM |
1667 | |
1668 | static boolean | |
30667bf3 AM |
1669 | elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs) |
1670 | bfd *abfd; | |
1671 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1672 | asection *sec; | |
1673 | const Elf_Internal_Rela *relocs; | |
edd21aca | 1674 | { |
30667bf3 AM |
1675 | Elf_Internal_Shdr *symtab_hdr; |
1676 | struct elf_link_hash_entry **sym_hashes; | |
1677 | bfd_signed_vma *local_got_refcounts; | |
74d1c347 | 1678 | bfd_signed_vma *local_plt_refcounts; |
30667bf3 AM |
1679 | const Elf_Internal_Rela *rel, *relend; |
1680 | unsigned long r_symndx; | |
1681 | struct elf_link_hash_entry *h; | |
83c81bfe | 1682 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 1683 | bfd *dynobj; |
30667bf3 | 1684 | |
ec338859 | 1685 | elf_section_data (sec)->local_dynrel = NULL; |
98ceb8ce | 1686 | |
30667bf3 AM |
1687 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1688 | sym_hashes = elf_sym_hashes (abfd); | |
1689 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
74d1c347 AM |
1690 | local_plt_refcounts = local_got_refcounts; |
1691 | if (local_plt_refcounts != NULL) | |
1692 | local_plt_refcounts += symtab_hdr->sh_info; | |
83c81bfe | 1693 | htab = hppa_link_hash_table (info); |
ebe50bae | 1694 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
1695 | if (dynobj == NULL) |
1696 | return true; | |
1697 | ||
30667bf3 AM |
1698 | relend = relocs + sec->reloc_count; |
1699 | for (rel = relocs; rel < relend; rel++) | |
1700 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1701 | { | |
1702 | case R_PARISC_DLTIND14F: | |
1703 | case R_PARISC_DLTIND14R: | |
1704 | case R_PARISC_DLTIND21L: | |
1705 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1706 | if (r_symndx >= symtab_hdr->sh_info) | |
1707 | { | |
1708 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1709 | if (h->got.refcount > 0) | |
4dc86686 | 1710 | h->got.refcount -= 1; |
30667bf3 AM |
1711 | } |
1712 | else if (local_got_refcounts != NULL) | |
1713 | { | |
1714 | if (local_got_refcounts[r_symndx] > 0) | |
4dc86686 | 1715 | local_got_refcounts[r_symndx] -= 1; |
30667bf3 AM |
1716 | } |
1717 | break; | |
edd21aca | 1718 | |
30667bf3 AM |
1719 | case R_PARISC_PCREL12F: |
1720 | case R_PARISC_PCREL17C: | |
1721 | case R_PARISC_PCREL17F: | |
1722 | case R_PARISC_PCREL22F: | |
1723 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1724 | if (r_symndx >= symtab_hdr->sh_info) | |
1725 | { | |
1726 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1727 | if (h->plt.refcount > 0) | |
1728 | h->plt.refcount -= 1; | |
1729 | } | |
1730 | break; | |
edd21aca | 1731 | |
74d1c347 AM |
1732 | case R_PARISC_PLABEL14R: |
1733 | case R_PARISC_PLABEL21L: | |
1734 | case R_PARISC_PLABEL32: | |
1735 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1736 | if (r_symndx >= symtab_hdr->sh_info) | |
1737 | { | |
98ceb8ce AM |
1738 | struct elf32_hppa_link_hash_entry *eh; |
1739 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1740 | struct elf32_hppa_dyn_reloc_entry *p; | |
1741 | ||
74d1c347 | 1742 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
98ceb8ce | 1743 | |
74d1c347 AM |
1744 | if (h->plt.refcount > 0) |
1745 | h->plt.refcount -= 1; | |
98ceb8ce AM |
1746 | |
1747 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1748 | ||
1749 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1750 | if (p->sec == sec) | |
1751 | { | |
1752 | #if RELATIVE_DYNRELOCS | |
1753 | if (!IS_ABSOLUTE_RELOC (rtype)) | |
1754 | p->relative_count -= 1; | |
1755 | #endif | |
1756 | p->count -= 1; | |
1757 | if (p->count == 0) | |
1758 | *pp = p->next; | |
1759 | break; | |
1760 | } | |
74d1c347 AM |
1761 | } |
1762 | else if (local_plt_refcounts != NULL) | |
1763 | { | |
1764 | if (local_plt_refcounts[r_symndx] > 0) | |
1765 | local_plt_refcounts[r_symndx] -= 1; | |
1766 | } | |
1767 | break; | |
1768 | ||
98ceb8ce AM |
1769 | case R_PARISC_DIR32: |
1770 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1771 | if (r_symndx >= symtab_hdr->sh_info) | |
1772 | { | |
1773 | struct elf32_hppa_link_hash_entry *eh; | |
1774 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1775 | struct elf32_hppa_dyn_reloc_entry *p; | |
1776 | ||
1777 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1778 | ||
1779 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1780 | ||
1781 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1782 | if (p->sec == sec) | |
1783 | { | |
1784 | #if RELATIVE_DYNRELOCS | |
1785 | if (!IS_ABSOLUTE_RELOC (R_PARISC_DIR32)) | |
1786 | p->relative_count -= 1; | |
1787 | #endif | |
1788 | p->count -= 1; | |
1789 | if (p->count == 0) | |
1790 | *pp = p->next; | |
1791 | break; | |
1792 | } | |
1793 | } | |
1794 | break; | |
1795 | ||
30667bf3 AM |
1796 | default: |
1797 | break; | |
1798 | } | |
252b5132 | 1799 | |
252b5132 RH |
1800 | return true; |
1801 | } | |
1802 | ||
74d1c347 AM |
1803 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1804 | plabels. */ | |
1805 | ||
1806 | static void | |
1807 | elf32_hppa_hide_symbol (info, h) | |
1808 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1809 | struct elf_link_hash_entry *h; | |
1810 | { | |
5fba655a L |
1811 | if ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0) |
1812 | h->dynindx = -1; | |
74d1c347 AM |
1813 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel) |
1814 | { | |
1815 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1816 | h->plt.offset = (bfd_vma) -1; | |
1817 | } | |
1818 | } | |
1819 | ||
4dc86686 AM |
1820 | /* This is the condition under which elf32_hppa_finish_dynamic_symbol |
1821 | will be called from elflink.h. If elflink.h doesn't call our | |
1822 | finish_dynamic_symbol routine, we'll need to do something about | |
1823 | initializing any .plt and .got entries in elf32_hppa_relocate_section. */ | |
1824 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
1825 | ((DYN) \ | |
1826 | && ((INFO)->shared \ | |
1827 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
1828 | && ((H)->dynindx != -1 \ | |
1829 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
1830 | ||
30667bf3 AM |
1831 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1832 | regular object. The current definition is in some section of the | |
1833 | dynamic object, but we're not including those sections. We have to | |
1834 | change the definition to something the rest of the link can | |
1835 | understand. */ | |
252b5132 | 1836 | |
30667bf3 AM |
1837 | static boolean |
1838 | elf32_hppa_adjust_dynamic_symbol (info, h) | |
1839 | struct bfd_link_info *info; | |
1840 | struct elf_link_hash_entry *h; | |
252b5132 | 1841 | { |
83c81bfe | 1842 | struct elf32_hppa_link_hash_table *htab; |
ebe50bae AM |
1843 | struct elf32_hppa_link_hash_entry *eh; |
1844 | struct elf32_hppa_dyn_reloc_entry *p; | |
30667bf3 | 1845 | asection *s; |
3ac8354b | 1846 | unsigned int power_of_two; |
30667bf3 AM |
1847 | |
1848 | /* If this is a function, put it in the procedure linkage table. We | |
1849 | will fill in the contents of the procedure linkage table later, | |
1850 | when we know the address of the .got section. */ | |
1851 | if (h->type == STT_FUNC | |
1852 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1853 | { | |
12cca0d2 AM |
1854 | if (!info->shared |
1855 | && h->plt.refcount > 0 | |
1856 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1857 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0) | |
1858 | { | |
1859 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; | |
1860 | } | |
1861 | ||
30667bf3 AM |
1862 | if (h->plt.refcount <= 0 |
1863 | || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1864 | && h->root.type != bfd_link_hash_defweak | |
74d1c347 | 1865 | && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel |
30667bf3 AM |
1866 | && (!info->shared || info->symbolic))) |
1867 | { | |
1868 | /* The .plt entry is not needed when: | |
1869 | a) Garbage collection has removed all references to the | |
1870 | symbol, or | |
1871 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1872 | object, and it's not a weak definition, nor is the symbol |
1873 | used by a plabel relocation. Either this object is the | |
1874 | application or we are doing a shared symbolic link. */ | |
1875 | ||
1876 | /* As a special sop to the hppa ABI, we keep a .plt entry | |
1877 | for functions in sections containing PIC code. */ | |
12cca0d2 AM |
1878 | if (((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call) |
1879 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; | |
30667bf3 AM |
1880 | else |
1881 | { | |
1882 | h->plt.offset = (bfd_vma) -1; | |
1883 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
30667bf3 | 1884 | } |
30667bf3 | 1885 | } |
4dc86686 | 1886 | |
30667bf3 AM |
1887 | return true; |
1888 | } | |
bbd7ec4a AM |
1889 | else |
1890 | h->plt.offset = (bfd_vma) -1; | |
edd21aca | 1891 | |
30667bf3 AM |
1892 | /* If this is a weak symbol, and there is a real definition, the |
1893 | processor independent code will have arranged for us to see the | |
1894 | real definition first, and we can just use the same value. */ | |
1895 | if (h->weakdef != NULL) | |
edd21aca | 1896 | { |
49e9d0d3 AM |
1897 | if (h->weakdef->root.type != bfd_link_hash_defined |
1898 | && h->weakdef->root.type != bfd_link_hash_defweak) | |
1899 | abort (); | |
30667bf3 AM |
1900 | h->root.u.def.section = h->weakdef->root.u.def.section; |
1901 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
0a991dfe | 1902 | return true; |
30667bf3 | 1903 | } |
edd21aca | 1904 | |
30667bf3 AM |
1905 | /* This is a reference to a symbol defined by a dynamic object which |
1906 | is not a function. */ | |
1907 | ||
1908 | /* If we are creating a shared library, we must presume that the | |
1909 | only references to the symbol are via the global offset table. | |
1910 | For such cases we need not do anything here; the relocations will | |
1911 | be handled correctly by relocate_section. */ | |
1912 | if (info->shared) | |
1913 | return true; | |
1914 | ||
1915 | /* If there are no references to this symbol that do not use the | |
1916 | GOT, we don't need to generate a copy reloc. */ | |
1917 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
1918 | return true; | |
1919 | ||
ebe50bae AM |
1920 | eh = (struct elf32_hppa_link_hash_entry *) h; |
1921 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1922 | { | |
1923 | s = p->sec->output_section; | |
1924 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1925 | break; | |
1926 | } | |
1927 | ||
1928 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1929 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1930 | if (p == NULL) | |
1931 | { | |
1932 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
1933 | return true; | |
1934 | } | |
1935 | ||
30667bf3 AM |
1936 | /* We must allocate the symbol in our .dynbss section, which will |
1937 | become part of the .bss section of the executable. There will be | |
1938 | an entry for this symbol in the .dynsym section. The dynamic | |
1939 | object will contain position independent code, so all references | |
1940 | from the dynamic object to this symbol will go through the global | |
1941 | offset table. The dynamic linker will use the .dynsym entry to | |
1942 | determine the address it must put in the global offset table, so | |
1943 | both the dynamic object and the regular object will refer to the | |
1944 | same memory location for the variable. */ | |
1945 | ||
3ac8354b | 1946 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1947 | |
1948 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1949 | copy the initial value out of the dynamic object and into the | |
3ac8354b | 1950 | runtime process image. */ |
30667bf3 AM |
1951 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
1952 | { | |
3ac8354b | 1953 | htab->srelbss->_raw_size += sizeof (Elf32_External_Rela); |
30667bf3 | 1954 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
edd21aca | 1955 | } |
252b5132 | 1956 | |
3ac8354b AM |
1957 | /* We need to figure out the alignment required for this symbol. I |
1958 | have no idea how other ELF linkers handle this. */ | |
30667bf3 | 1959 | |
3ac8354b AM |
1960 | power_of_two = bfd_log2 (h->size); |
1961 | if (power_of_two > 3) | |
1962 | power_of_two = 3; | |
1963 | ||
1964 | /* Apply the required alignment. */ | |
1965 | s = htab->sdynbss; | |
1966 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1967 | (bfd_size_type) (1 << power_of_two)); | |
1968 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
1969 | { | |
1970 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) | |
1971 | return false; | |
1972 | } | |
30667bf3 | 1973 | |
30667bf3 AM |
1974 | /* Define the symbol as being at this point in the section. */ |
1975 | h->root.u.def.section = s; | |
1976 | h->root.u.def.value = s->_raw_size; | |
edd21aca | 1977 | |
30667bf3 AM |
1978 | /* Increment the section size to make room for the symbol. */ |
1979 | s->_raw_size += h->size; | |
252b5132 RH |
1980 | |
1981 | return true; | |
1982 | } | |
1983 | ||
30667bf3 AM |
1984 | /* Called via elf_link_hash_traverse to create .plt entries for an |
1985 | application that uses statically linked PIC functions. Similar to | |
1986 | the first part of elf32_hppa_adjust_dynamic_symbol. */ | |
252b5132 | 1987 | |
30667bf3 | 1988 | static boolean |
a8d02d66 | 1989 | mark_PIC_calls (h, inf) |
30667bf3 | 1990 | struct elf_link_hash_entry *h; |
4dc86686 | 1991 | PTR inf ATTRIBUTE_UNUSED; |
252b5132 | 1992 | { |
30667bf3 AM |
1993 | if (! (h->plt.refcount > 0 |
1994 | && (h->root.type == bfd_link_hash_defined | |
1995 | || h->root.type == bfd_link_hash_defweak) | |
1996 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)) | |
252b5132 | 1997 | { |
30667bf3 AM |
1998 | h->plt.offset = (bfd_vma) -1; |
1999 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2000 | return true; | |
252b5132 RH |
2001 | } |
2002 | ||
74d1c347 | 2003 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
12cca0d2 | 2004 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; |
30667bf3 | 2005 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
edd21aca | 2006 | |
4dc86686 AM |
2007 | return true; |
2008 | } | |
2009 | ||
e5ee5df1 AM |
2010 | /* Allocate space in the .plt for entries that won't have relocations. |
2011 | ie. pic_call and plabel entries. */ | |
a8d02d66 AM |
2012 | |
2013 | static boolean | |
e5ee5df1 | 2014 | allocate_plt_static (h, inf) |
a8d02d66 AM |
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 | { | |
e5ee5df1 AM |
2030 | /* Make an entry in the .plt section for non-pic code that is |
2031 | calling pic code. */ | |
a8d02d66 AM |
2032 | s = htab->splt; |
2033 | h->plt.offset = s->_raw_size; | |
e5ee5df1 AM |
2034 | s->_raw_size += PLT_ENTRY_SIZE; |
2035 | } | |
2036 | else if (htab->elf.dynamic_sections_created | |
2037 | && h->plt.refcount > 0) | |
2038 | { | |
2039 | /* Make sure this symbol is output as a dynamic symbol. | |
2040 | Undefined weak syms won't yet be marked as dynamic. */ | |
2041 | if (h->dynindx == -1 | |
2042 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2043 | && h->type != STT_PARISC_MILLI) | |
a8d02d66 | 2044 | { |
e5ee5df1 AM |
2045 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) |
2046 | return false; | |
2047 | } | |
2048 | ||
2049 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
2050 | { | |
2051 | /* Allocate these later. */ | |
2052 | } | |
2053 | else if (((struct elf32_hppa_link_hash_entry *) h)->plabel) | |
2054 | { | |
2055 | /* Make an entry in the .plt section for plabel references | |
2056 | that won't have a .plt entry for other reasons. */ | |
2057 | s = htab->splt; | |
2058 | h->plt.offset = s->_raw_size; | |
2059 | s->_raw_size += PLT_ENTRY_SIZE; | |
a8d02d66 AM |
2060 | } |
2061 | else | |
e5ee5df1 AM |
2062 | { |
2063 | /* No .plt entry needed. */ | |
2064 | h->plt.offset = (bfd_vma) -1; | |
2065 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2066 | } | |
2067 | } | |
2068 | else | |
2069 | { | |
2070 | h->plt.offset = (bfd_vma) -1; | |
2071 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
a8d02d66 AM |
2072 | } |
2073 | ||
2074 | return true; | |
2075 | } | |
2076 | ||
4dc86686 AM |
2077 | /* Allocate space in .plt, .got and associated reloc sections for |
2078 | global syms. */ | |
2079 | ||
2080 | static boolean | |
98ceb8ce | 2081 | allocate_dynrelocs (h, inf) |
4dc86686 AM |
2082 | struct elf_link_hash_entry *h; |
2083 | PTR inf; | |
2084 | { | |
2085 | struct bfd_link_info *info; | |
83c81bfe | 2086 | struct elf32_hppa_link_hash_table *htab; |
4dc86686 | 2087 | asection *s; |
446f2863 | 2088 | struct elf32_hppa_link_hash_entry *eh; |
98ceb8ce | 2089 | struct elf32_hppa_dyn_reloc_entry *p; |
4dc86686 | 2090 | |
73a74a62 AM |
2091 | if (h->root.type == bfd_link_hash_indirect |
2092 | || h->root.type == bfd_link_hash_warning) | |
2093 | return true; | |
2094 | ||
30667bf3 | 2095 | info = (struct bfd_link_info *) inf; |
83c81bfe | 2096 | htab = hppa_link_hash_table (info); |
e5ee5df1 AM |
2097 | if (htab->elf.dynamic_sections_created |
2098 | && h->plt.offset != (bfd_vma) -1 | |
2099 | && !((struct elf32_hppa_link_hash_entry *) h)->pic_call | |
2100 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
4dc86686 | 2101 | { |
e5ee5df1 AM |
2102 | /* Make an entry in the .plt section. */ |
2103 | s = htab->splt; | |
2104 | h->plt.offset = s->_raw_size; | |
2105 | s->_raw_size += PLT_ENTRY_SIZE; | |
3ac8354b | 2106 | |
e5ee5df1 AM |
2107 | /* We also need to make an entry in the .rela.plt section. */ |
2108 | htab->srelplt->_raw_size += sizeof (Elf32_External_Rela); | |
2109 | htab->need_plt_stub = 1; | |
4dc86686 | 2110 | } |
edd21aca | 2111 | |
4dc86686 AM |
2112 | if (h->got.refcount > 0) |
2113 | { | |
446f2863 AM |
2114 | /* Make sure this symbol is output as a dynamic symbol. |
2115 | Undefined weak syms won't yet be marked as dynamic. */ | |
2116 | if (h->dynindx == -1 | |
2117 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2118 | && h->type != STT_PARISC_MILLI) | |
2119 | { | |
2120 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2121 | return false; | |
2122 | } | |
2123 | ||
83c81bfe | 2124 | s = htab->sgot; |
4dc86686 AM |
2125 | h->got.offset = s->_raw_size; |
2126 | s->_raw_size += GOT_ENTRY_SIZE; | |
ce757d15 AM |
2127 | if (htab->elf.dynamic_sections_created |
2128 | && (info->shared | |
2129 | || (h->dynindx != -1 | |
2130 | && h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)) | |
2131 | { | |
2132 | htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
2133 | } | |
4dc86686 AM |
2134 | } |
2135 | else | |
2136 | h->got.offset = (bfd_vma) -1; | |
30667bf3 | 2137 | |
446f2863 | 2138 | eh = (struct elf32_hppa_link_hash_entry *) h; |
98ceb8ce | 2139 | if (eh->dyn_relocs == NULL) |
446f2863 | 2140 | return true; |
30667bf3 | 2141 | |
98ceb8ce AM |
2142 | /* If this is a -Bsymbolic shared link, then we need to discard all |
2143 | space allocated for dynamic pc-relative relocs against symbols | |
2144 | defined in a regular object. For the normal shared case, discard | |
2145 | space for relocs that have become local due to symbol visibility | |
2146 | changes. */ | |
2147 | if (info->shared) | |
446f2863 | 2148 | { |
98ceb8ce AM |
2149 | #if RELATIVE_DYNRELOCS |
2150 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
2151 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
2152 | || info->symbolic)) | |
446f2863 | 2153 | { |
98ceb8ce | 2154 | struct elf32_hppa_dyn_reloc_entry **pp; |
30667bf3 | 2155 | |
98ceb8ce AM |
2156 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
2157 | { | |
2158 | p->count -= p->relative_count; | |
2159 | p->relative_count = 0; | |
2160 | if (p->count == 0) | |
2161 | *pp = p->next; | |
2162 | else | |
2163 | pp = &p->next; | |
2164 | } | |
2165 | } | |
2166 | #endif | |
446f2863 | 2167 | } |
98ceb8ce | 2168 | else |
30667bf3 | 2169 | { |
98ceb8ce AM |
2170 | /* For the non-shared case, discard space for relocs against |
2171 | symbols which turn out to need copy relocs or are not | |
2172 | dynamic. */ | |
2173 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
2174 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2175 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
ebe50bae | 2176 | || (htab->elf.dynamic_sections_created |
98ceb8ce AM |
2177 | && (h->root.type == bfd_link_hash_undefweak |
2178 | || h->root.type == bfd_link_hash_undefined)))) | |
2179 | { | |
2180 | /* Make sure this symbol is output as a dynamic symbol. | |
2181 | Undefined weak syms won't yet be marked as dynamic. */ | |
2182 | if (h->dynindx == -1 | |
2183 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2184 | && h->type != STT_PARISC_MILLI) | |
2185 | { | |
2186 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2187 | return false; | |
2188 | } | |
2189 | ||
2190 | /* If that succeeded, we know we'll be keeping all the | |
2191 | relocs. */ | |
2192 | if (h->dynindx != -1) | |
2193 | goto keep; | |
2194 | } | |
446f2863 | 2195 | |
98ceb8ce AM |
2196 | eh->dyn_relocs = NULL; |
2197 | return true; | |
2198 | ||
ec338859 | 2199 | keep: ; |
30667bf3 | 2200 | } |
30667bf3 | 2201 | |
98ceb8ce AM |
2202 | /* Finally, allocate space. */ |
2203 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
30667bf3 | 2204 | { |
98ceb8ce AM |
2205 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
2206 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2207 | } |
30667bf3 AM |
2208 | |
2209 | return true; | |
2210 | } | |
30667bf3 | 2211 | |
d5c73c2f AM |
2212 | /* This function is called via elf_link_hash_traverse to force |
2213 | millicode symbols local so they do not end up as globals in the | |
2214 | dynamic symbol table. We ought to be able to do this in | |
2215 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2216 | for all dynamic symbols. Arguably, this is a bug in | |
2217 | elf_adjust_dynamic_symbol. */ | |
2218 | ||
2219 | static boolean | |
2220 | clobber_millicode_symbols (h, info) | |
2221 | struct elf_link_hash_entry *h; | |
2222 | struct bfd_link_info *info; | |
2223 | { | |
8dea1268 AM |
2224 | /* We only want to remove these from the dynamic symbol table. |
2225 | Therefore we do not leave ELF_LINK_FORCED_LOCAL set. */ | |
d5c73c2f | 2226 | if (h->type == STT_PARISC_MILLI) |
e0522e89 | 2227 | { |
a0e94dc0 | 2228 | struct elf32_hppa_link_hash_table *htab; |
e0522e89 | 2229 | unsigned short oldflags = h->elf_link_hash_flags; |
a0e94dc0 | 2230 | |
e0522e89 AM |
2231 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL; |
2232 | elf32_hppa_hide_symbol (info, h); | |
a0e94dc0 AM |
2233 | htab = hppa_link_hash_table (info); |
2234 | _bfd_elf_strtab_delref (htab->elf.dynstr, h->dynstr_index); | |
e0522e89 AM |
2235 | h->elf_link_hash_flags &= ~ELF_LINK_FORCED_LOCAL; |
2236 | h->elf_link_hash_flags |= oldflags & ELF_LINK_FORCED_LOCAL; | |
2237 | } | |
d5c73c2f AM |
2238 | return true; |
2239 | } | |
2240 | ||
98ceb8ce AM |
2241 | /* Find any dynamic relocs that apply to read-only sections. */ |
2242 | ||
2243 | static boolean | |
2244 | readonly_dynrelocs (h, inf) | |
2245 | struct elf_link_hash_entry *h; | |
2246 | PTR inf; | |
2247 | { | |
2248 | struct elf32_hppa_link_hash_entry *eh; | |
2249 | struct elf32_hppa_dyn_reloc_entry *p; | |
2250 | ||
2251 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
2252 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2253 | { | |
2254 | asection *s = p->sec->output_section; | |
2255 | ||
2256 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2257 | { | |
2258 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2259 | ||
2260 | info->flags |= DF_TEXTREL; | |
2261 | ||
2262 | /* Not an error, just cut short the traversal. */ | |
2263 | return false; | |
2264 | } | |
2265 | } | |
2266 | return true; | |
2267 | } | |
2268 | ||
30667bf3 AM |
2269 | /* Set the sizes of the dynamic sections. */ |
2270 | ||
2271 | static boolean | |
2272 | elf32_hppa_size_dynamic_sections (output_bfd, info) | |
98ceb8ce | 2273 | bfd *output_bfd ATTRIBUTE_UNUSED; |
30667bf3 AM |
2274 | struct bfd_link_info *info; |
2275 | { | |
83c81bfe | 2276 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2277 | bfd *dynobj; |
98ceb8ce | 2278 | bfd *ibfd; |
30667bf3 AM |
2279 | asection *s; |
2280 | boolean relocs; | |
30667bf3 | 2281 | |
83c81bfe | 2282 | htab = hppa_link_hash_table (info); |
ebe50bae | 2283 | dynobj = htab->elf.dynobj; |
49e9d0d3 AM |
2284 | if (dynobj == NULL) |
2285 | abort (); | |
30667bf3 | 2286 | |
ebe50bae | 2287 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2288 | { |
2289 | /* Set the contents of the .interp section to the interpreter. */ | |
2290 | if (! info->shared) | |
2291 | { | |
2292 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
49e9d0d3 AM |
2293 | if (s == NULL) |
2294 | abort (); | |
30667bf3 AM |
2295 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; |
2296 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2297 | } | |
74d1c347 | 2298 | |
d5c73c2f | 2299 | /* Force millicode symbols local. */ |
ebe50bae | 2300 | elf_link_hash_traverse (&htab->elf, |
d5c73c2f AM |
2301 | clobber_millicode_symbols, |
2302 | info); | |
68fb2e56 AM |
2303 | } |
2304 | else | |
2305 | { | |
2306 | /* Run through the function symbols, looking for any that are | |
a8d02d66 AM |
2307 | PIC, and mark them as needing .plt entries so that %r19 will |
2308 | be set up. */ | |
68fb2e56 | 2309 | if (! info->shared) |
a8d02d66 | 2310 | elf_link_hash_traverse (&htab->elf, mark_PIC_calls, (PTR) info); |
68fb2e56 | 2311 | } |
d5c73c2f | 2312 | |
98ceb8ce AM |
2313 | /* Set up .got and .plt offsets for local syms, and space for local |
2314 | dynamic relocs. */ | |
2315 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
68fb2e56 AM |
2316 | { |
2317 | bfd_signed_vma *local_got; | |
2318 | bfd_signed_vma *end_local_got; | |
2319 | bfd_signed_vma *local_plt; | |
2320 | bfd_signed_vma *end_local_plt; | |
2321 | bfd_size_type locsymcount; | |
2322 | Elf_Internal_Shdr *symtab_hdr; | |
2323 | asection *srel; | |
74d1c347 | 2324 | |
98ceb8ce | 2325 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2326 | continue; |
4dc86686 | 2327 | |
98ceb8ce AM |
2328 | for (s = ibfd->sections; s != NULL; s = s->next) |
2329 | { | |
ec338859 | 2330 | struct elf32_hppa_dyn_reloc_entry *p; |
98ceb8ce | 2331 | |
ec338859 AM |
2332 | for (p = ((struct elf32_hppa_dyn_reloc_entry *) |
2333 | elf_section_data (s)->local_dynrel); | |
2334 | p != NULL; | |
2335 | p = p->next) | |
98ceb8ce | 2336 | { |
ec338859 AM |
2337 | if (!bfd_is_abs_section (p->sec) |
2338 | && bfd_is_abs_section (p->sec->output_section)) | |
2339 | { | |
2340 | /* Input section has been discarded, either because | |
2341 | it is a copy of a linkonce section or due to | |
2342 | linker script /DISCARD/, so we'll be discarding | |
2343 | the relocs too. */ | |
2344 | } | |
2345 | else | |
2346 | { | |
2347 | srel = elf_section_data (p->sec)->sreloc; | |
2348 | srel->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
2349 | } | |
98ceb8ce AM |
2350 | } |
2351 | } | |
2352 | ||
2353 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2354 | if (!local_got) |
2355 | continue; | |
74d1c347 | 2356 | |
98ceb8ce | 2357 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2358 | locsymcount = symtab_hdr->sh_info; |
2359 | end_local_got = local_got + locsymcount; | |
83c81bfe AM |
2360 | s = htab->sgot; |
2361 | srel = htab->srelgot; | |
68fb2e56 AM |
2362 | for (; local_got < end_local_got; ++local_got) |
2363 | { | |
2364 | if (*local_got > 0) | |
4dc86686 | 2365 | { |
68fb2e56 AM |
2366 | *local_got = s->_raw_size; |
2367 | s->_raw_size += GOT_ENTRY_SIZE; | |
2368 | if (info->shared) | |
2369 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
4dc86686 | 2370 | } |
68fb2e56 AM |
2371 | else |
2372 | *local_got = (bfd_vma) -1; | |
2373 | } | |
74d1c347 | 2374 | |
68fb2e56 AM |
2375 | local_plt = end_local_got; |
2376 | end_local_plt = local_plt + locsymcount; | |
ebe50bae | 2377 | if (! htab->elf.dynamic_sections_created) |
68fb2e56 AM |
2378 | { |
2379 | /* Won't be used, but be safe. */ | |
2380 | for (; local_plt < end_local_plt; ++local_plt) | |
2381 | *local_plt = (bfd_vma) -1; | |
2382 | } | |
2383 | else | |
2384 | { | |
83c81bfe AM |
2385 | s = htab->splt; |
2386 | srel = htab->srelplt; | |
74d1c347 AM |
2387 | for (; local_plt < end_local_plt; ++local_plt) |
2388 | { | |
2389 | if (*local_plt > 0) | |
2390 | { | |
74d1c347 AM |
2391 | *local_plt = s->_raw_size; |
2392 | s->_raw_size += PLT_ENTRY_SIZE; | |
2393 | if (info->shared) | |
4dc86686 | 2394 | srel->_raw_size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2395 | } |
2396 | else | |
2397 | *local_plt = (bfd_vma) -1; | |
2398 | } | |
2399 | } | |
30667bf3 | 2400 | } |
30667bf3 | 2401 | |
e5ee5df1 AM |
2402 | /* Do all the .plt entries without relocs first. The dynamic linker |
2403 | uses the last .plt reloc to find the end of the .plt (and hence | |
2404 | the start of the .got) for lazy linking. */ | |
2405 | elf_link_hash_traverse (&htab->elf, allocate_plt_static, (PTR) info); | |
a8d02d66 | 2406 | |
98ceb8ce AM |
2407 | /* Allocate global sym .plt and .got entries, and space for global |
2408 | sym dynamic relocs. */ | |
ebe50bae | 2409 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); |
30667bf3 AM |
2410 | |
2411 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2412 | determined the sizes of the various dynamic sections. Allocate | |
2413 | memory for them. */ | |
2414 | relocs = false; | |
30667bf3 AM |
2415 | for (s = dynobj->sections; s != NULL; s = s->next) |
2416 | { | |
30667bf3 AM |
2417 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2418 | continue; | |
2419 | ||
83c81bfe | 2420 | if (s == htab->splt) |
68fb2e56 | 2421 | { |
83c81bfe | 2422 | if (htab->need_plt_stub) |
68fb2e56 AM |
2423 | { |
2424 | /* Make space for the plt stub at the end of the .plt | |
2425 | section. We want this stub right at the end, up | |
2426 | against the .got section. */ | |
83c81bfe | 2427 | int gotalign = bfd_section_alignment (dynobj, htab->sgot); |
68fb2e56 AM |
2428 | int pltalign = bfd_section_alignment (dynobj, s); |
2429 | bfd_size_type mask; | |
30667bf3 | 2430 | |
68fb2e56 AM |
2431 | if (gotalign > pltalign) |
2432 | bfd_set_section_alignment (dynobj, s, gotalign); | |
2433 | mask = ((bfd_size_type) 1 << gotalign) - 1; | |
2434 | s->_raw_size = (s->_raw_size + sizeof (plt_stub) + mask) & ~mask; | |
2435 | } | |
2436 | } | |
83c81bfe | 2437 | else if (s == htab->sgot) |
68fb2e56 AM |
2438 | ; |
2439 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) | |
30667bf3 AM |
2440 | { |
2441 | if (s->_raw_size != 0) | |
2442 | { | |
4e12ff7f AM |
2443 | /* Remember whether there are any reloc sections other |
2444 | than .rela.plt. */ | |
2445 | if (s != htab->srelplt) | |
2446 | relocs = true; | |
47d89dba | 2447 | |
30667bf3 AM |
2448 | /* We use the reloc_count field as a counter if we need |
2449 | to copy relocs into the output file. */ | |
2450 | s->reloc_count = 0; | |
2451 | } | |
2452 | } | |
30667bf3 AM |
2453 | else |
2454 | { | |
2455 | /* It's not one of our sections, so don't allocate space. */ | |
2456 | continue; | |
2457 | } | |
2458 | ||
2459 | if (s->_raw_size == 0) | |
2460 | { | |
2461 | /* If we don't need this section, strip it from the | |
2462 | output file. This is mostly to handle .rela.bss and | |
2463 | .rela.plt. We must create both sections in | |
2464 | create_dynamic_sections, because they must be created | |
2465 | before the linker maps input sections to output | |
2466 | sections. The linker does that before | |
2467 | adjust_dynamic_symbol is called, and it is that | |
2468 | function which decides whether anything needs to go | |
2469 | into these sections. */ | |
2470 | _bfd_strip_section_from_output (info, s); | |
2471 | continue; | |
2472 | } | |
2473 | ||
2474 | /* Allocate memory for the section contents. Zero it, because | |
2475 | we may not fill in all the reloc sections. */ | |
2476 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); | |
2477 | if (s->contents == NULL && s->_raw_size != 0) | |
2478 | return false; | |
2479 | } | |
2480 | ||
ebe50bae | 2481 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2482 | { |
2483 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2484 | actually has nothing to do with the PLT, it is how we | |
2485 | communicate the LTP value of a load module to the dynamic | |
2486 | linker. */ | |
dc810e39 AM |
2487 | #define add_dynamic_entry(TAG, VAL) \ |
2488 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
2489 | ||
2490 | if (!add_dynamic_entry (DT_PLTGOT, 0)) | |
30667bf3 AM |
2491 | return false; |
2492 | ||
2493 | /* Add some entries to the .dynamic section. We fill in the | |
2494 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2495 | must add the entries now so that we get the correct size for | |
2496 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2497 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2498 | if (!info->shared) |
30667bf3 | 2499 | { |
dc810e39 | 2500 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
30667bf3 AM |
2501 | return false; |
2502 | } | |
2503 | ||
83c81bfe | 2504 | if (htab->srelplt->_raw_size != 0) |
30667bf3 | 2505 | { |
dc810e39 AM |
2506 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
2507 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2508 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
30667bf3 AM |
2509 | return false; |
2510 | } | |
2511 | ||
2512 | if (relocs) | |
2513 | { | |
dc810e39 AM |
2514 | if (!add_dynamic_entry (DT_RELA, 0) |
2515 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2516 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
30667bf3 | 2517 | return false; |
30667bf3 | 2518 | |
98ceb8ce AM |
2519 | /* If any dynamic relocs apply to a read-only section, |
2520 | then we need a DT_TEXTREL entry. */ | |
ebe50bae | 2521 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, (PTR) info); |
98ceb8ce AM |
2522 | |
2523 | if ((info->flags & DF_TEXTREL) != 0) | |
2524 | { | |
2525 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
2526 | return false; | |
2527 | } | |
30667bf3 AM |
2528 | } |
2529 | } | |
dc810e39 | 2530 | #undef add_dynamic_entry |
30667bf3 AM |
2531 | |
2532 | return true; | |
2533 | } | |
2534 | ||
30667bf3 AM |
2535 | /* External entry points for sizing and building linker stubs. */ |
2536 | ||
2537 | /* Determine and set the size of the stub section for a final link. | |
2538 | ||
2539 | The basic idea here is to examine all the relocations looking for | |
2540 | PC-relative calls to a target that is unreachable with a "bl" | |
2541 | instruction. */ | |
2542 | ||
2543 | boolean | |
47d89dba | 2544 | elf32_hppa_size_stubs (output_bfd, stub_bfd, info, multi_subspace, group_size, |
30667bf3 | 2545 | add_stub_section, layout_sections_again) |
25f72752 | 2546 | bfd *output_bfd; |
30667bf3 | 2547 | bfd *stub_bfd; |
30667bf3 | 2548 | struct bfd_link_info *info; |
25f72752 | 2549 | boolean multi_subspace; |
47d89dba | 2550 | bfd_signed_vma group_size; |
30667bf3 AM |
2551 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); |
2552 | void (*layout_sections_again) PARAMS ((void)); | |
2553 | { | |
2554 | bfd *input_bfd; | |
2555 | asection *section; | |
25f72752 | 2556 | asection **input_list, **list; |
30667bf3 | 2557 | Elf_Internal_Sym *local_syms, **all_local_syms; |
25f72752 AM |
2558 | unsigned int bfd_indx, bfd_count; |
2559 | int top_id, top_index; | |
83c81bfe | 2560 | struct elf32_hppa_link_hash_table *htab; |
47d89dba AM |
2561 | bfd_size_type stub_group_size; |
2562 | boolean stubs_always_before_branch; | |
30667bf3 | 2563 | boolean stub_changed = 0; |
25f72752 | 2564 | boolean ret = 0; |
dc810e39 | 2565 | bfd_size_type amt; |
30667bf3 | 2566 | |
83c81bfe | 2567 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
2568 | |
2569 | /* Stash our params away. */ | |
83c81bfe AM |
2570 | htab->stub_bfd = stub_bfd; |
2571 | htab->multi_subspace = multi_subspace; | |
2572 | htab->add_stub_section = add_stub_section; | |
2573 | htab->layout_sections_again = layout_sections_again; | |
47d89dba AM |
2574 | stubs_always_before_branch = group_size < 0; |
2575 | if (group_size < 0) | |
2576 | stub_group_size = -group_size; | |
2577 | else | |
2578 | stub_group_size = group_size; | |
2579 | if (stub_group_size == 1) | |
2580 | { | |
2581 | /* Default values. */ | |
2582 | stub_group_size = 8000000; | |
83c81bfe | 2583 | if (htab->has_17bit_branch || htab->multi_subspace) |
47d89dba | 2584 | stub_group_size = 250000; |
83c81bfe | 2585 | if (htab->has_12bit_branch) |
47d89dba AM |
2586 | stub_group_size = 7812; |
2587 | } | |
30667bf3 | 2588 | |
1badb539 AM |
2589 | /* Count the number of input BFDs and find the top input section id. */ |
2590 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2591 | input_bfd != NULL; |
2592 | input_bfd = input_bfd->link_next) | |
2593 | { | |
2594 | bfd_count += 1; | |
25f72752 AM |
2595 | for (section = input_bfd->sections; |
2596 | section != NULL; | |
2597 | section = section->next) | |
2598 | { | |
2599 | if (top_id < section->id) | |
2600 | top_id = section->id; | |
2601 | } | |
30667bf3 AM |
2602 | } |
2603 | ||
dc810e39 | 2604 | amt = sizeof (struct map_stub) * (top_id + 1); |
83c81bfe AM |
2605 | htab->stub_group = (struct map_stub *) bfd_zmalloc (amt); |
2606 | if (htab->stub_group == NULL) | |
30667bf3 AM |
2607 | return false; |
2608 | ||
1badb539 AM |
2609 | /* Make a list of input sections for each output section included in |
2610 | the link. | |
2611 | ||
2612 | We can't use output_bfd->section_count here to find the top output | |
2613 | section index as some sections may have been removed, and | |
2614 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
2615 | for (section = output_bfd->sections, top_index = 0; | |
2616 | section != NULL; | |
2617 | section = section->next) | |
2618 | { | |
2619 | if (top_index < section->index) | |
2620 | top_index = section->index; | |
2621 | } | |
2622 | ||
dc810e39 AM |
2623 | amt = sizeof (asection *) * (top_index + 1); |
2624 | input_list = (asection **) bfd_malloc (amt); | |
25f72752 AM |
2625 | if (input_list == NULL) |
2626 | return false; | |
2627 | ||
1badb539 AM |
2628 | /* For sections we aren't interested in, mark their entries with a |
2629 | value we can check later. */ | |
2630 | list = input_list + top_index; | |
2631 | do | |
2632 | *list = bfd_abs_section_ptr; | |
2633 | while (list-- != input_list); | |
2634 | ||
2635 | for (section = output_bfd->sections; | |
2636 | section != NULL; | |
2637 | section = section->next) | |
2638 | { | |
47d89dba | 2639 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2640 | input_list[section->index] = NULL; |
2641 | } | |
2642 | ||
2643 | /* Now actually build the lists. */ | |
25f72752 AM |
2644 | for (input_bfd = info->input_bfds; |
2645 | input_bfd != NULL; | |
2646 | input_bfd = input_bfd->link_next) | |
2647 | { | |
2648 | for (section = input_bfd->sections; | |
2649 | section != NULL; | |
2650 | section = section->next) | |
2651 | { | |
2652 | if (section->output_section != NULL | |
1badb539 AM |
2653 | && section->output_section->owner == output_bfd |
2654 | && section->output_section->index <= top_index) | |
25f72752 AM |
2655 | { |
2656 | list = input_list + section->output_section->index; | |
1badb539 AM |
2657 | if (*list != bfd_abs_section_ptr) |
2658 | { | |
2659 | /* Steal the link_sec pointer for our list. */ | |
83c81bfe | 2660 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
1badb539 AM |
2661 | /* This happens to make the list in reverse order, |
2662 | which is what we want. */ | |
2663 | PREV_SEC (section) = *list; | |
2664 | *list = section; | |
2665 | } | |
25f72752 AM |
2666 | } |
2667 | } | |
2668 | } | |
2669 | ||
2670 | /* See whether we can group stub sections together. Grouping stub | |
2671 | sections may result in fewer stubs. More importantly, we need to | |
2672 | put all .init* and .fini* stubs at the beginning of the .init or | |
2673 | .fini output sections respectively, because glibc splits the | |
2674 | _init and _fini functions into multiple parts. Putting a stub in | |
2675 | the middle of a function is not a good idea. */ | |
a017a724 | 2676 | list = input_list + top_index; |
1badb539 | 2677 | do |
25f72752 AM |
2678 | { |
2679 | asection *tail = *list; | |
1badb539 AM |
2680 | if (tail == bfd_abs_section_ptr) |
2681 | continue; | |
25f72752 AM |
2682 | while (tail != NULL) |
2683 | { | |
2684 | asection *curr; | |
2685 | asection *prev; | |
2686 | bfd_size_type total; | |
2687 | ||
2688 | curr = tail; | |
2689 | if (tail->_cooked_size) | |
2690 | total = tail->_cooked_size; | |
2691 | else | |
2692 | total = tail->_raw_size; | |
2693 | while ((prev = PREV_SEC (curr)) != NULL | |
2694 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2695 | < stub_group_size)) |
25f72752 AM |
2696 | curr = prev; |
2697 | ||
2698 | /* OK, the size from the start of CURR to the end is less | |
2699 | than 250000 bytes and thus can be handled by one stub | |
2700 | section. (or the tail section is itself larger than | |
2701 | 250000 bytes, in which case we may be toast.) | |
2702 | We should really be keeping track of the total size of | |
2703 | stubs added here, as stubs contribute to the final output | |
2704 | section size. That's a little tricky, and this way will | |
2705 | only break if stubs added total more than 12144 bytes, or | |
2706 | 1518 long branch stubs. It seems unlikely for more than | |
2707 | 1518 different functions to be called, especially from | |
2708 | code only 250000 bytes long. */ | |
2709 | do | |
2710 | { | |
2711 | prev = PREV_SEC (tail); | |
2712 | /* Set up this stub group. */ | |
83c81bfe | 2713 | htab->stub_group[tail->id].link_sec = curr; |
25f72752 AM |
2714 | } |
2715 | while (tail != curr && (tail = prev) != NULL); | |
2716 | ||
2717 | /* But wait, there's more! Input sections up to 250000 | |
2718 | bytes before the stub section can be handled by it too. */ | |
47d89dba | 2719 | if (!stubs_always_before_branch) |
25f72752 | 2720 | { |
47d89dba AM |
2721 | total = 0; |
2722 | while (prev != NULL | |
2723 | && ((total += tail->output_offset - prev->output_offset) | |
2724 | < stub_group_size)) | |
2725 | { | |
2726 | tail = prev; | |
2727 | prev = PREV_SEC (tail); | |
83c81bfe | 2728 | htab->stub_group[tail->id].link_sec = curr; |
47d89dba | 2729 | } |
25f72752 AM |
2730 | } |
2731 | tail = prev; | |
2732 | } | |
2733 | } | |
1badb539 | 2734 | while (list-- != input_list); |
25f72752 | 2735 | free (input_list); |
1badb539 | 2736 | #undef PREV_SEC |
30667bf3 AM |
2737 | |
2738 | /* We want to read in symbol extension records only once. To do this | |
2739 | we need to read in the local symbols in parallel and save them for | |
2740 | later use; so hold pointers to the local symbols in an array. */ | |
dc810e39 AM |
2741 | amt = sizeof (Elf_Internal_Sym *) * bfd_count; |
2742 | all_local_syms = (Elf_Internal_Sym **) bfd_zmalloc (amt); | |
30667bf3 | 2743 | if (all_local_syms == NULL) |
25f72752 | 2744 | return false; |
30667bf3 AM |
2745 | |
2746 | /* Walk over all the input BFDs, swapping in local symbols. | |
2747 | If we are creating a shared library, create hash entries for the | |
2748 | export stubs. */ | |
25f72752 | 2749 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2750 | input_bfd != NULL; |
25f72752 | 2751 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2752 | { |
2753 | Elf_Internal_Shdr *symtab_hdr; | |
2754 | Elf_Internal_Sym *isym; | |
25f72752 | 2755 | Elf32_External_Sym *ext_syms, *esym, *end_sy; |
dc810e39 | 2756 | bfd_size_type sec_size; |
edd21aca | 2757 | |
252b5132 RH |
2758 | /* We'll need the symbol table in a second. */ |
2759 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2760 | if (symtab_hdr->sh_info == 0) | |
2761 | continue; | |
2762 | ||
edd21aca AM |
2763 | /* We need an array of the local symbols attached to the input bfd. |
2764 | Unfortunately, we're going to have to read & swap them in. */ | |
dc810e39 AM |
2765 | sec_size = symtab_hdr->sh_info; |
2766 | sec_size *= sizeof (Elf_Internal_Sym); | |
2767 | local_syms = (Elf_Internal_Sym *) bfd_malloc (sec_size); | |
edd21aca AM |
2768 | if (local_syms == NULL) |
2769 | { | |
2770 | goto error_ret_free_local; | |
2771 | } | |
25f72752 | 2772 | all_local_syms[bfd_indx] = local_syms; |
dc810e39 AM |
2773 | sec_size = symtab_hdr->sh_info; |
2774 | sec_size *= sizeof (Elf32_External_Sym); | |
2775 | ext_syms = (Elf32_External_Sym *) bfd_malloc (sec_size); | |
edd21aca AM |
2776 | if (ext_syms == NULL) |
2777 | { | |
2778 | goto error_ret_free_local; | |
2779 | } | |
2780 | ||
2781 | if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 2782 | || (bfd_bread (ext_syms, sec_size, input_bfd) != sec_size)) |
edd21aca AM |
2783 | { |
2784 | free (ext_syms); | |
2785 | goto error_ret_free_local; | |
2786 | } | |
2787 | ||
2788 | /* Swap the local symbols in. */ | |
2789 | isym = local_syms; | |
2790 | esym = ext_syms; | |
25f72752 | 2791 | for (end_sy = esym + symtab_hdr->sh_info; esym < end_sy; esym++, isym++) |
edd21aca AM |
2792 | bfd_elf32_swap_symbol_in (input_bfd, esym, isym); |
2793 | ||
2794 | /* Now we can free the external symbols. */ | |
2795 | free (ext_syms); | |
edd21aca | 2796 | |
83c81bfe | 2797 | if (info->shared && htab->multi_subspace) |
30667bf3 | 2798 | { |
25f72752 AM |
2799 | struct elf_link_hash_entry **sym_hashes; |
2800 | struct elf_link_hash_entry **end_hashes; | |
30667bf3 AM |
2801 | unsigned int symcount; |
2802 | ||
2803 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2804 | - symtab_hdr->sh_info); | |
25f72752 AM |
2805 | sym_hashes = elf_sym_hashes (input_bfd); |
2806 | end_hashes = sym_hashes + symcount; | |
30667bf3 AM |
2807 | |
2808 | /* Look through the global syms for functions; We need to | |
2809 | build export stubs for all globally visible functions. */ | |
25f72752 | 2810 | for (; sym_hashes < end_hashes; sym_hashes++) |
30667bf3 AM |
2811 | { |
2812 | struct elf32_hppa_link_hash_entry *hash; | |
2813 | ||
25f72752 | 2814 | hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes; |
30667bf3 AM |
2815 | |
2816 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2817 | || hash->elf.root.type == bfd_link_hash_warning) | |
2818 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2819 | hash->elf.root.u.i.link); | |
2820 | ||
2821 | /* At this point in the link, undefined syms have been | |
2822 | resolved, so we need to check that the symbol was | |
2823 | defined in this BFD. */ | |
2824 | if ((hash->elf.root.type == bfd_link_hash_defined | |
2825 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2826 | && hash->elf.type == STT_FUNC | |
2827 | && hash->elf.root.u.def.section->output_section != NULL | |
25f72752 AM |
2828 | && (hash->elf.root.u.def.section->output_section->owner |
2829 | == output_bfd) | |
30667bf3 AM |
2830 | && hash->elf.root.u.def.section->owner == input_bfd |
2831 | && (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
2832 | && !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) | |
2833 | && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT) | |
2834 | { | |
2835 | asection *sec; | |
2836 | const char *stub_name; | |
2837 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2838 | ||
2839 | sec = hash->elf.root.u.def.section; | |
2840 | stub_name = hash->elf.root.root.string; | |
83c81bfe | 2841 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
2842 | stub_name, |
2843 | false, false); | |
2844 | if (stub_entry == NULL) | |
2845 | { | |
83c81bfe | 2846 | stub_entry = hppa_add_stub (stub_name, sec, htab); |
30667bf3 AM |
2847 | if (!stub_entry) |
2848 | goto error_ret_free_local; | |
2849 | ||
2850 | stub_entry->target_value = hash->elf.root.u.def.value; | |
2851 | stub_entry->target_section = hash->elf.root.u.def.section; | |
2852 | stub_entry->stub_type = hppa_stub_export; | |
2853 | stub_entry->h = hash; | |
2854 | stub_changed = 1; | |
2855 | } | |
2856 | else | |
2857 | { | |
2858 | (*_bfd_error_handler) (_("%s: duplicate export stub %s"), | |
8f615d07 AM |
2859 | bfd_archive_filename (input_bfd), |
2860 | stub_name); | |
30667bf3 AM |
2861 | } |
2862 | } | |
2863 | } | |
30667bf3 AM |
2864 | } |
2865 | } | |
edd21aca AM |
2866 | |
2867 | while (1) | |
2868 | { | |
30667bf3 AM |
2869 | asection *stub_sec; |
2870 | ||
25f72752 | 2871 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2872 | input_bfd != NULL; |
25f72752 | 2873 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2874 | { |
2875 | Elf_Internal_Shdr *symtab_hdr; | |
2876 | ||
2877 | /* We'll need the symbol table in a second. */ | |
2878 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2879 | if (symtab_hdr->sh_info == 0) | |
2880 | continue; | |
2881 | ||
25f72752 | 2882 | local_syms = all_local_syms[bfd_indx]; |
30667bf3 AM |
2883 | |
2884 | /* Walk over each section attached to the input bfd. */ | |
2885 | for (section = input_bfd->sections; | |
2886 | section != NULL; | |
25f72752 | 2887 | section = section->next) |
30667bf3 AM |
2888 | { |
2889 | Elf_Internal_Shdr *input_rel_hdr; | |
2890 | Elf32_External_Rela *external_relocs, *erelaend, *erela; | |
2891 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; | |
2892 | ||
2893 | /* If there aren't any relocs, then there's nothing more | |
2894 | to do. */ | |
2895 | if ((section->flags & SEC_RELOC) == 0 | |
2896 | || section->reloc_count == 0) | |
2897 | continue; | |
2898 | ||
25f72752 AM |
2899 | /* If this section is a link-once section that will be |
2900 | discarded, then don't create any stubs. */ | |
2901 | if (section->output_section == NULL | |
2902 | || section->output_section->owner != output_bfd) | |
2903 | continue; | |
2904 | ||
30667bf3 | 2905 | /* Allocate space for the external relocations. */ |
dc810e39 AM |
2906 | amt = section->reloc_count; |
2907 | amt *= sizeof (Elf32_External_Rela); | |
2908 | external_relocs = (Elf32_External_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
2909 | if (external_relocs == NULL) |
2910 | { | |
2911 | goto error_ret_free_local; | |
2912 | } | |
2913 | ||
2914 | /* Likewise for the internal relocations. */ | |
dc810e39 AM |
2915 | amt = section->reloc_count; |
2916 | amt *= sizeof (Elf_Internal_Rela); | |
2917 | internal_relocs = (Elf_Internal_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
2918 | if (internal_relocs == NULL) |
2919 | { | |
2920 | free (external_relocs); | |
2921 | goto error_ret_free_local; | |
2922 | } | |
2923 | ||
2924 | /* Read in the external relocs. */ | |
2925 | input_rel_hdr = &elf_section_data (section)->rel_hdr; | |
2926 | if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 2927 | || bfd_bread (external_relocs, |
30667bf3 AM |
2928 | input_rel_hdr->sh_size, |
2929 | input_bfd) != input_rel_hdr->sh_size) | |
2930 | { | |
2931 | free (external_relocs); | |
2932 | error_ret_free_internal: | |
2933 | free (internal_relocs); | |
2934 | goto error_ret_free_local; | |
2935 | } | |
2936 | ||
2937 | /* Swap in the relocs. */ | |
2938 | erela = external_relocs; | |
2939 | erelaend = erela + section->reloc_count; | |
2940 | irela = internal_relocs; | |
2941 | for (; erela < erelaend; erela++, irela++) | |
2942 | bfd_elf32_swap_reloca_in (input_bfd, erela, irela); | |
2943 | ||
2944 | /* We're done with the external relocs, free them. */ | |
2945 | free (external_relocs); | |
2946 | ||
2947 | /* Now examine each relocation. */ | |
2948 | irela = internal_relocs; | |
2949 | irelaend = irela + section->reloc_count; | |
2950 | for (; irela < irelaend; irela++) | |
2951 | { | |
2952 | unsigned int r_type, r_indx; | |
2953 | enum elf32_hppa_stub_type stub_type; | |
2954 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2955 | asection *sym_sec; | |
2956 | bfd_vma sym_value; | |
2957 | bfd_vma destination; | |
2958 | struct elf32_hppa_link_hash_entry *hash; | |
2959 | char *stub_name; | |
25f72752 | 2960 | const asection *id_sec; |
30667bf3 AM |
2961 | |
2962 | r_type = ELF32_R_TYPE (irela->r_info); | |
2963 | r_indx = ELF32_R_SYM (irela->r_info); | |
2964 | ||
2965 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2966 | { | |
2967 | bfd_set_error (bfd_error_bad_value); | |
2968 | goto error_ret_free_internal; | |
2969 | } | |
2970 | ||
2971 | /* Only look for stubs on call instructions. */ | |
2972 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
2973 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
2974 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
2975 | continue; | |
2976 | ||
2977 | /* Now determine the call target, its name, value, | |
2978 | section. */ | |
2979 | sym_sec = NULL; | |
2980 | sym_value = 0; | |
2981 | destination = 0; | |
2982 | hash = NULL; | |
2983 | if (r_indx < symtab_hdr->sh_info) | |
2984 | { | |
2985 | /* It's a local symbol. */ | |
2986 | Elf_Internal_Sym *sym; | |
2987 | Elf_Internal_Shdr *hdr; | |
2988 | ||
2989 | sym = local_syms + r_indx; | |
2990 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
2991 | sym_sec = hdr->bfd_section; | |
2992 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
2993 | sym_value = sym->st_value; | |
2994 | destination = (sym_value + irela->r_addend | |
2995 | + sym_sec->output_offset | |
2996 | + sym_sec->output_section->vma); | |
2997 | } | |
2998 | else | |
2999 | { | |
3000 | /* It's an external symbol. */ | |
3001 | int e_indx; | |
3002 | ||
3003 | e_indx = r_indx - symtab_hdr->sh_info; | |
3004 | hash = ((struct elf32_hppa_link_hash_entry *) | |
3005 | elf_sym_hashes (input_bfd)[e_indx]); | |
3006 | ||
3007 | while (hash->elf.root.type == bfd_link_hash_indirect | |
3008 | || hash->elf.root.type == bfd_link_hash_warning) | |
3009 | hash = ((struct elf32_hppa_link_hash_entry *) | |
3010 | hash->elf.root.u.i.link); | |
3011 | ||
3012 | if (hash->elf.root.type == bfd_link_hash_defined | |
3013 | || hash->elf.root.type == bfd_link_hash_defweak) | |
3014 | { | |
3015 | sym_sec = hash->elf.root.u.def.section; | |
3016 | sym_value = hash->elf.root.u.def.value; | |
3017 | if (sym_sec->output_section != NULL) | |
3018 | destination = (sym_value + irela->r_addend | |
3019 | + sym_sec->output_offset | |
3020 | + sym_sec->output_section->vma); | |
3021 | } | |
3022 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
3023 | { | |
3024 | if (! info->shared) | |
3025 | continue; | |
3026 | } | |
3027 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
3028 | { | |
3029 | if (! (info->shared | |
3030 | && !info->no_undefined | |
3031 | && (ELF_ST_VISIBILITY (hash->elf.other) | |
2a5aaecb AM |
3032 | == STV_DEFAULT) |
3033 | && hash->elf.type != STT_PARISC_MILLI)) | |
30667bf3 AM |
3034 | continue; |
3035 | } | |
3036 | else | |
3037 | { | |
3038 | bfd_set_error (bfd_error_bad_value); | |
3039 | goto error_ret_free_internal; | |
3040 | } | |
3041 | } | |
3042 | ||
3043 | /* Determine what (if any) linker stub is needed. */ | |
3044 | stub_type = hppa_type_of_stub (section, irela, hash, | |
3045 | destination); | |
3046 | if (stub_type == hppa_stub_none) | |
3047 | continue; | |
3048 | ||
25f72752 | 3049 | /* Support for grouping stub sections. */ |
83c81bfe | 3050 | id_sec = htab->stub_group[section->id].link_sec; |
25f72752 | 3051 | |
30667bf3 | 3052 | /* Get the name of this stub. */ |
25f72752 | 3053 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela); |
30667bf3 AM |
3054 | if (!stub_name) |
3055 | goto error_ret_free_internal; | |
3056 | ||
83c81bfe | 3057 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
3058 | stub_name, |
3059 | false, false); | |
3060 | if (stub_entry != NULL) | |
3061 | { | |
3062 | /* The proper stub has already been created. */ | |
3063 | free (stub_name); | |
3064 | continue; | |
3065 | } | |
3066 | ||
83c81bfe | 3067 | stub_entry = hppa_add_stub (stub_name, section, htab); |
30667bf3 AM |
3068 | if (stub_entry == NULL) |
3069 | { | |
3070 | free (stub_name); | |
3071 | goto error_ret_free_local; | |
3072 | } | |
3073 | ||
3074 | stub_entry->target_value = sym_value; | |
3075 | stub_entry->target_section = sym_sec; | |
3076 | stub_entry->stub_type = stub_type; | |
3077 | if (info->shared) | |
3078 | { | |
3079 | if (stub_type == hppa_stub_import) | |
3080 | stub_entry->stub_type = hppa_stub_import_shared; | |
98ceb8ce | 3081 | else if (stub_type == hppa_stub_long_branch) |
30667bf3 AM |
3082 | stub_entry->stub_type = hppa_stub_long_branch_shared; |
3083 | } | |
3084 | stub_entry->h = hash; | |
3085 | stub_changed = 1; | |
3086 | } | |
3087 | ||
3088 | /* We're done with the internal relocs, free them. */ | |
3089 | free (internal_relocs); | |
3090 | } | |
3091 | } | |
3092 | ||
3093 | if (!stub_changed) | |
3094 | break; | |
3095 | ||
3096 | /* OK, we've added some stubs. Find out the new size of the | |
3097 | stub sections. */ | |
83c81bfe | 3098 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3099 | stub_sec != NULL; |
3100 | stub_sec = stub_sec->next) | |
3101 | { | |
74d1c347 AM |
3102 | stub_sec->_raw_size = 0; |
3103 | stub_sec->_cooked_size = 0; | |
3104 | } | |
74d1c347 | 3105 | |
83c81bfe | 3106 | bfd_hash_traverse (&htab->stub_hash_table, hppa_size_one_stub, htab); |
74d1c347 | 3107 | |
30667bf3 | 3108 | /* Ask the linker to do its stuff. */ |
83c81bfe | 3109 | (*htab->layout_sections_again) (); |
30667bf3 AM |
3110 | stub_changed = 0; |
3111 | } | |
3112 | ||
25f72752 | 3113 | ret = 1; |
30667bf3 AM |
3114 | |
3115 | error_ret_free_local: | |
25f72752 AM |
3116 | while (bfd_count-- > 0) |
3117 | if (all_local_syms[bfd_count]) | |
3118 | free (all_local_syms[bfd_count]); | |
30667bf3 AM |
3119 | free (all_local_syms); |
3120 | ||
25f72752 | 3121 | return ret; |
30667bf3 AM |
3122 | } |
3123 | ||
30667bf3 AM |
3124 | /* For a final link, this function is called after we have sized the |
3125 | stubs to provide a value for __gp. */ | |
3126 | ||
3127 | boolean | |
3128 | elf32_hppa_set_gp (abfd, info) | |
3129 | bfd *abfd; | |
3130 | struct bfd_link_info *info; | |
3131 | { | |
83c81bfe | 3132 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3133 | struct elf_link_hash_entry *h; |
3134 | asection *sec; | |
3135 | bfd_vma gp_val; | |
3136 | ||
83c81bfe | 3137 | htab = hppa_link_hash_table (info); |
ebe50bae | 3138 | h = elf_link_hash_lookup (&htab->elf, "$global$", false, false, false); |
30667bf3 | 3139 | |
df8634e3 AM |
3140 | if (h != NULL |
3141 | && (h->root.type == bfd_link_hash_defined | |
3142 | || h->root.type == bfd_link_hash_defweak)) | |
30667bf3 AM |
3143 | { |
3144 | gp_val = h->root.u.def.value; | |
3145 | sec = h->root.u.def.section; | |
3146 | } | |
3147 | else | |
3148 | { | |
74d1c347 AM |
3149 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
3150 | or .data, if these sections exist. In the case of choosing | |
3151 | .plt try to make the LTP ideal for addressing anywhere in the | |
3152 | .plt or .got with a 14 bit signed offset. Typically, the end | |
3153 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
3154 | if either the .plt or .got is larger than 0x2000. If both | |
3155 | the .plt and .got are smaller than 0x2000, choose the end of | |
3156 | the .plt section. */ | |
3157 | ||
83c81bfe | 3158 | sec = htab->splt; |
74d1c347 | 3159 | if (sec != NULL) |
30667bf3 | 3160 | { |
74d1c347 AM |
3161 | gp_val = sec->_raw_size; |
3162 | if (gp_val > 0x2000 | |
83c81bfe | 3163 | || (htab->sgot && htab->sgot->_raw_size > 0x2000)) |
74d1c347 AM |
3164 | { |
3165 | gp_val = 0x2000; | |
3166 | } | |
3167 | } | |
3168 | else | |
3169 | { | |
3170 | gp_val = 0; | |
83c81bfe | 3171 | sec = htab->sgot; |
74d1c347 AM |
3172 | if (sec != NULL) |
3173 | { | |
3174 | /* We know we don't have a .plt. If .got is large, | |
3175 | offset our LTP. */ | |
3176 | if (sec->_raw_size > 0x2000) | |
3177 | gp_val = 0x2000; | |
3178 | } | |
3179 | else | |
3180 | { | |
3181 | /* No .plt or .got. Who cares what the LTP is? */ | |
3182 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3183 | } | |
30667bf3 | 3184 | } |
df8634e3 AM |
3185 | |
3186 | if (h != NULL) | |
3187 | { | |
3188 | h->root.type = bfd_link_hash_defined; | |
3189 | h->root.u.def.value = gp_val; | |
3190 | if (sec != NULL) | |
3191 | h->root.u.def.section = sec; | |
3192 | else | |
3193 | h->root.u.def.section = bfd_abs_section_ptr; | |
3194 | } | |
30667bf3 AM |
3195 | } |
3196 | ||
b32b5d6e | 3197 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
3198 | gp_val += sec->output_section->vma + sec->output_offset; |
3199 | ||
3200 | elf_gp (abfd) = gp_val; | |
30667bf3 AM |
3201 | return true; |
3202 | } | |
3203 | ||
30667bf3 AM |
3204 | /* Build all the stubs associated with the current output file. The |
3205 | stubs are kept in a hash table attached to the main linker hash | |
3206 | table. We also set up the .plt entries for statically linked PIC | |
3207 | functions here. This function is called via hppaelf_finish in the | |
3208 | linker. */ | |
3209 | ||
3210 | boolean | |
3211 | elf32_hppa_build_stubs (info) | |
3212 | struct bfd_link_info *info; | |
3213 | { | |
3214 | asection *stub_sec; | |
3215 | struct bfd_hash_table *table; | |
83c81bfe | 3216 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3217 | |
83c81bfe | 3218 | htab = hppa_link_hash_table (info); |
30667bf3 | 3219 | |
83c81bfe | 3220 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3221 | stub_sec != NULL; |
3222 | stub_sec = stub_sec->next) | |
3223 | { | |
dc810e39 | 3224 | bfd_size_type size; |
30667bf3 AM |
3225 | |
3226 | /* Allocate memory to hold the linker stubs. */ | |
74d1c347 | 3227 | size = stub_sec->_raw_size; |
83c81bfe | 3228 | stub_sec->contents = (unsigned char *) bfd_zalloc (htab->stub_bfd, size); |
30667bf3 AM |
3229 | if (stub_sec->contents == NULL && size != 0) |
3230 | return false; | |
74d1c347 | 3231 | stub_sec->_raw_size = 0; |
30667bf3 AM |
3232 | } |
3233 | ||
3234 | /* Build the stubs as directed by the stub hash table. */ | |
83c81bfe | 3235 | table = &htab->stub_hash_table; |
30667bf3 AM |
3236 | bfd_hash_traverse (table, hppa_build_one_stub, info); |
3237 | ||
3238 | return true; | |
3239 | } | |
3240 | ||
c46b7515 AM |
3241 | /* Perform a final link. */ |
3242 | ||
3243 | static boolean | |
3244 | elf32_hppa_final_link (abfd, info) | |
3245 | bfd *abfd; | |
3246 | struct bfd_link_info *info; | |
3247 | { | |
3248 | asection *s; | |
3249 | ||
4dc86686 AM |
3250 | /* Invoke the regular ELF linker to do all the work. */ |
3251 | if (!bfd_elf32_bfd_final_link (abfd, info)) | |
c46b7515 AM |
3252 | return false; |
3253 | ||
3254 | /* If we're producing a final executable, sort the contents of the | |
3255 | unwind section. Magic section names, but this is much safer than | |
3256 | having elf32_hppa_relocate_section remember where SEGREL32 relocs | |
3257 | occurred. Consider what happens if someone inept creates a | |
3258 | linker script that puts unwind information in .text. */ | |
3259 | s = bfd_get_section_by_name (abfd, ".PARISC.unwind"); | |
3260 | if (s != NULL) | |
3261 | { | |
3262 | bfd_size_type size; | |
3263 | char *contents; | |
3264 | ||
3265 | size = s->_raw_size; | |
3266 | contents = bfd_malloc (size); | |
3267 | if (contents == NULL) | |
3268 | return false; | |
3269 | ||
3270 | if (! bfd_get_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3271 | return false; | |
3272 | ||
dc810e39 | 3273 | qsort (contents, (size_t) (size / 16), 16, hppa_unwind_entry_compare); |
c46b7515 AM |
3274 | |
3275 | if (! bfd_set_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3276 | return false; | |
3277 | } | |
3278 | return true; | |
3279 | } | |
3280 | ||
3281 | /* Record the lowest address for the data and text segments. */ | |
3282 | ||
3283 | static void | |
3284 | hppa_record_segment_addr (abfd, section, data) | |
3285 | bfd *abfd ATTRIBUTE_UNUSED; | |
3286 | asection *section; | |
3287 | PTR data; | |
3288 | { | |
83c81bfe | 3289 | struct elf32_hppa_link_hash_table *htab; |
c46b7515 | 3290 | |
83c81bfe | 3291 | htab = (struct elf32_hppa_link_hash_table *) data; |
c46b7515 AM |
3292 | |
3293 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3294 | { | |
3295 | bfd_vma value = section->vma - section->filepos; | |
3296 | ||
3297 | if ((section->flags & SEC_READONLY) != 0) | |
3298 | { | |
83c81bfe AM |
3299 | if (value < htab->text_segment_base) |
3300 | htab->text_segment_base = value; | |
c46b7515 AM |
3301 | } |
3302 | else | |
3303 | { | |
83c81bfe AM |
3304 | if (value < htab->data_segment_base) |
3305 | htab->data_segment_base = value; | |
c46b7515 AM |
3306 | } |
3307 | } | |
3308 | } | |
3309 | ||
30667bf3 AM |
3310 | /* Perform a relocation as part of a final link. */ |
3311 | ||
3312 | static bfd_reloc_status_type | |
83c81bfe | 3313 | final_link_relocate (input_section, contents, rel, value, htab, sym_sec, h) |
30667bf3 AM |
3314 | asection *input_section; |
3315 | bfd_byte *contents; | |
3316 | const Elf_Internal_Rela *rel; | |
3317 | bfd_vma value; | |
83c81bfe | 3318 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3319 | asection *sym_sec; |
3320 | struct elf32_hppa_link_hash_entry *h; | |
3321 | { | |
3322 | int insn; | |
3323 | unsigned int r_type = ELF32_R_TYPE (rel->r_info); | |
3324 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; | |
3325 | int r_format = howto->bitsize; | |
3326 | enum hppa_reloc_field_selector_type_alt r_field; | |
3327 | bfd *input_bfd = input_section->owner; | |
3328 | bfd_vma offset = rel->r_offset; | |
3329 | bfd_vma max_branch_offset = 0; | |
3330 | bfd_byte *hit_data = contents + offset; | |
3331 | bfd_signed_vma addend = rel->r_addend; | |
3332 | bfd_vma location; | |
3333 | struct elf32_hppa_stub_hash_entry *stub_entry = NULL; | |
3334 | int val; | |
3335 | ||
3336 | if (r_type == R_PARISC_NONE) | |
3337 | return bfd_reloc_ok; | |
3338 | ||
3339 | insn = bfd_get_32 (input_bfd, hit_data); | |
3340 | ||
3341 | /* Find out where we are and where we're going. */ | |
3342 | location = (offset + | |
3343 | input_section->output_offset + | |
3344 | input_section->output_section->vma); | |
3345 | ||
3346 | switch (r_type) | |
3347 | { | |
3348 | case R_PARISC_PCREL12F: | |
3349 | case R_PARISC_PCREL17F: | |
3350 | case R_PARISC_PCREL22F: | |
3351 | /* If this is a call to a function defined in another dynamic | |
3352 | library, or if it is a call to a PIC function in the same | |
74d1c347 AM |
3353 | object, or if this is a shared link and it is a call to a |
3354 | weak symbol which may or may not be in the same object, then | |
3355 | find the import stub in the stub hash. */ | |
30667bf3 AM |
3356 | if (sym_sec == NULL |
3357 | || sym_sec->output_section == NULL | |
12cca0d2 AM |
3358 | || (h != NULL |
3359 | && ((h->maybe_pic_call | |
3360 | && !(input_section->flags & SEC_HAS_GOT_REF)) | |
3361 | || (h->elf.root.type == bfd_link_hash_defweak | |
3362 | && h->elf.dynindx != -1 | |
3363 | && h->elf.plt.offset != (bfd_vma) -1)))) | |
30667bf3 AM |
3364 | { |
3365 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3366 | h, rel, htab); |
30667bf3 AM |
3367 | if (stub_entry != NULL) |
3368 | { | |
3369 | value = (stub_entry->stub_offset | |
3370 | + stub_entry->stub_sec->output_offset | |
3371 | + stub_entry->stub_sec->output_section->vma); | |
3372 | addend = 0; | |
3373 | } | |
3374 | else if (sym_sec == NULL && h != NULL | |
3375 | && h->elf.root.type == bfd_link_hash_undefweak) | |
3376 | { | |
db20fd76 AM |
3377 | /* It's OK if undefined weak. Calls to undefined weak |
3378 | symbols behave as if the "called" function | |
3379 | immediately returns. We can thus call to a weak | |
3380 | function without first checking whether the function | |
3381 | is defined. */ | |
30667bf3 | 3382 | value = location; |
db20fd76 | 3383 | addend = 8; |
30667bf3 AM |
3384 | } |
3385 | else | |
3386 | return bfd_reloc_notsupported; | |
3387 | } | |
3388 | /* Fall thru. */ | |
3389 | ||
3390 | case R_PARISC_PCREL21L: | |
3391 | case R_PARISC_PCREL17C: | |
3392 | case R_PARISC_PCREL17R: | |
3393 | case R_PARISC_PCREL14R: | |
3394 | case R_PARISC_PCREL14F: | |
3395 | /* Make it a pc relative offset. */ | |
3396 | value -= location; | |
3397 | addend -= 8; | |
3398 | break; | |
3399 | ||
3400 | case R_PARISC_DPREL21L: | |
3401 | case R_PARISC_DPREL14R: | |
3402 | case R_PARISC_DPREL14F: | |
3403 | /* For all the DP relative relocations, we need to examine the symbol's | |
3404 | section. If it's a code section, then "data pointer relative" makes | |
3405 | no sense. In that case we don't adjust the "value", and for 21 bit | |
3406 | addil instructions, we change the source addend register from %dp to | |
3407 | %r0. This situation commonly arises when a variable's "constness" | |
3408 | is declared differently from the way the variable is defined. For | |
3409 | instance: "extern int foo" with foo defined as "const int foo". */ | |
3410 | if (sym_sec == NULL) | |
3411 | break; | |
3412 | if ((sym_sec->flags & SEC_CODE) != 0) | |
3413 | { | |
3414 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3415 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3416 | { | |
3417 | insn &= ~ (0x1f << 21); | |
74d1c347 | 3418 | #if 1 /* debug them. */ |
30667bf3 AM |
3419 | (*_bfd_error_handler) |
3420 | (_("%s(%s+0x%lx): fixing %s"), | |
8f615d07 | 3421 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3422 | input_section->name, |
3423 | (long) rel->r_offset, | |
3424 | howto->name); | |
3425 | #endif | |
3426 | } | |
3427 | /* Now try to make things easy for the dynamic linker. */ | |
3428 | ||
3429 | break; | |
3430 | } | |
74d1c347 | 3431 | /* Fall thru. */ |
30667bf3 AM |
3432 | |
3433 | case R_PARISC_DLTIND21L: | |
3434 | case R_PARISC_DLTIND14R: | |
3435 | case R_PARISC_DLTIND14F: | |
3436 | value -= elf_gp (input_section->output_section->owner); | |
3437 | break; | |
3438 | ||
c46b7515 AM |
3439 | case R_PARISC_SEGREL32: |
3440 | if ((sym_sec->flags & SEC_CODE) != 0) | |
83c81bfe | 3441 | value -= htab->text_segment_base; |
c46b7515 | 3442 | else |
83c81bfe | 3443 | value -= htab->data_segment_base; |
c46b7515 AM |
3444 | break; |
3445 | ||
30667bf3 AM |
3446 | default: |
3447 | break; | |
3448 | } | |
3449 | ||
3450 | switch (r_type) | |
3451 | { | |
3452 | case R_PARISC_DIR32: | |
47d89dba | 3453 | case R_PARISC_DIR14F: |
30667bf3 AM |
3454 | case R_PARISC_DIR17F: |
3455 | case R_PARISC_PCREL17C: | |
3456 | case R_PARISC_PCREL14F: | |
3457 | case R_PARISC_DPREL14F: | |
3458 | case R_PARISC_PLABEL32: | |
3459 | case R_PARISC_DLTIND14F: | |
3460 | case R_PARISC_SEGBASE: | |
3461 | case R_PARISC_SEGREL32: | |
3462 | r_field = e_fsel; | |
3463 | break; | |
3464 | ||
3465 | case R_PARISC_DIR21L: | |
3466 | case R_PARISC_PCREL21L: | |
3467 | case R_PARISC_DPREL21L: | |
3468 | case R_PARISC_PLABEL21L: | |
3469 | case R_PARISC_DLTIND21L: | |
3470 | r_field = e_lrsel; | |
3471 | break; | |
3472 | ||
3473 | case R_PARISC_DIR17R: | |
3474 | case R_PARISC_PCREL17R: | |
3475 | case R_PARISC_DIR14R: | |
3476 | case R_PARISC_PCREL14R: | |
3477 | case R_PARISC_DPREL14R: | |
3478 | case R_PARISC_PLABEL14R: | |
3479 | case R_PARISC_DLTIND14R: | |
3480 | r_field = e_rrsel; | |
3481 | break; | |
3482 | ||
3483 | case R_PARISC_PCREL12F: | |
3484 | case R_PARISC_PCREL17F: | |
3485 | case R_PARISC_PCREL22F: | |
3486 | r_field = e_fsel; | |
3487 | ||
3488 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3489 | { | |
3490 | max_branch_offset = (1 << (17-1)) << 2; | |
3491 | } | |
3492 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3493 | { | |
3494 | max_branch_offset = (1 << (12-1)) << 2; | |
3495 | } | |
3496 | else | |
3497 | { | |
3498 | max_branch_offset = (1 << (22-1)) << 2; | |
3499 | } | |
3500 | ||
3501 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3502 | undefined syms. We've already checked for a stub for the | |
3503 | shared undefined case. */ | |
3504 | if (sym_sec == NULL) | |
3505 | break; | |
3506 | ||
3507 | /* If the branch is out of reach, then redirect the | |
3508 | call to the local stub for this function. */ | |
3509 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3510 | { | |
3511 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3512 | h, rel, htab); |
30667bf3 AM |
3513 | if (stub_entry == NULL) |
3514 | return bfd_reloc_notsupported; | |
3515 | ||
3516 | /* Munge up the value and addend so that we call the stub | |
3517 | rather than the procedure directly. */ | |
3518 | value = (stub_entry->stub_offset | |
3519 | + stub_entry->stub_sec->output_offset | |
3520 | + stub_entry->stub_sec->output_section->vma | |
3521 | - location); | |
3522 | addend = -8; | |
3523 | } | |
3524 | break; | |
3525 | ||
3526 | /* Something we don't know how to handle. */ | |
3527 | default: | |
3528 | return bfd_reloc_notsupported; | |
3529 | } | |
3530 | ||
3531 | /* Make sure we can reach the stub. */ | |
3532 | if (max_branch_offset != 0 | |
3533 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3534 | { | |
3535 | (*_bfd_error_handler) | |
3536 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), | |
8f615d07 | 3537 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3538 | input_section->name, |
3539 | (long) rel->r_offset, | |
3540 | stub_entry->root.string); | |
ce757d15 | 3541 | bfd_set_error (bfd_error_bad_value); |
30667bf3 AM |
3542 | return bfd_reloc_notsupported; |
3543 | } | |
3544 | ||
3545 | val = hppa_field_adjust (value, addend, r_field); | |
3546 | ||
3547 | switch (r_type) | |
3548 | { | |
3549 | case R_PARISC_PCREL12F: | |
3550 | case R_PARISC_PCREL17C: | |
3551 | case R_PARISC_PCREL17F: | |
3552 | case R_PARISC_PCREL17R: | |
3553 | case R_PARISC_PCREL22F: | |
3554 | case R_PARISC_DIR17F: | |
3555 | case R_PARISC_DIR17R: | |
3556 | /* This is a branch. Divide the offset by four. | |
3557 | Note that we need to decide whether it's a branch or | |
3558 | otherwise by inspecting the reloc. Inspecting insn won't | |
3559 | work as insn might be from a .word directive. */ | |
3560 | val >>= 2; | |
3561 | break; | |
3562 | ||
3563 | default: | |
3564 | break; | |
3565 | } | |
3566 | ||
3567 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3568 | ||
3569 | /* Update the instruction word. */ | |
74d1c347 | 3570 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3571 | return bfd_reloc_ok; |
3572 | } | |
3573 | ||
30667bf3 AM |
3574 | /* Relocate an HPPA ELF section. */ |
3575 | ||
3576 | static boolean | |
3577 | elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section, | |
3578 | contents, relocs, local_syms, local_sections) | |
3579 | bfd *output_bfd; | |
3580 | struct bfd_link_info *info; | |
3581 | bfd *input_bfd; | |
3582 | asection *input_section; | |
3583 | bfd_byte *contents; | |
3584 | Elf_Internal_Rela *relocs; | |
3585 | Elf_Internal_Sym *local_syms; | |
3586 | asection **local_sections; | |
3587 | { | |
30667bf3 | 3588 | bfd_vma *local_got_offsets; |
83c81bfe | 3589 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3590 | Elf_Internal_Shdr *symtab_hdr; |
3591 | Elf_Internal_Rela *rel; | |
3592 | Elf_Internal_Rela *relend; | |
30667bf3 AM |
3593 | |
3594 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3595 | ||
83c81bfe | 3596 | htab = hppa_link_hash_table (info); |
74d1c347 | 3597 | local_got_offsets = elf_local_got_offsets (input_bfd); |
30667bf3 AM |
3598 | |
3599 | rel = relocs; | |
3600 | relend = relocs + input_section->reloc_count; | |
3601 | for (; rel < relend; rel++) | |
3602 | { | |
3603 | unsigned int r_type; | |
3604 | reloc_howto_type *howto; | |
3605 | unsigned int r_symndx; | |
3606 | struct elf32_hppa_link_hash_entry *h; | |
3607 | Elf_Internal_Sym *sym; | |
3608 | asection *sym_sec; | |
3609 | bfd_vma relocation; | |
3610 | bfd_reloc_status_type r; | |
3611 | const char *sym_name; | |
74d1c347 | 3612 | boolean plabel; |
30667bf3 AM |
3613 | |
3614 | r_type = ELF32_R_TYPE (rel->r_info); | |
3615 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3616 | { | |
3617 | bfd_set_error (bfd_error_bad_value); | |
3618 | return false; | |
3619 | } | |
3620 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3621 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3622 | continue; | |
3623 | ||
3624 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3625 | ||
3626 | if (info->relocateable) | |
3627 | { | |
3ac8354b | 3628 | /* This is a relocatable link. We don't have to change |
30667bf3 AM |
3629 | anything, unless the reloc is against a section symbol, |
3630 | in which case we have to adjust according to where the | |
3631 | section symbol winds up in the output section. */ | |
3632 | if (r_symndx < symtab_hdr->sh_info) | |
3633 | { | |
3634 | sym = local_syms + r_symndx; | |
3635 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3636 | { | |
3637 | sym_sec = local_sections[r_symndx]; | |
3638 | rel->r_addend += sym_sec->output_offset; | |
3639 | } | |
3640 | } | |
3641 | continue; | |
3642 | } | |
3643 | ||
3644 | /* This is a final link. */ | |
3645 | h = NULL; | |
3646 | sym = NULL; | |
3647 | sym_sec = NULL; | |
3648 | if (r_symndx < symtab_hdr->sh_info) | |
3649 | { | |
3650 | /* This is a local symbol, h defaults to NULL. */ | |
3651 | sym = local_syms + r_symndx; | |
3652 | sym_sec = local_sections[r_symndx]; | |
f8df10f4 | 3653 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sym_sec, rel); |
30667bf3 AM |
3654 | } |
3655 | else | |
3656 | { | |
3657 | int indx; | |
3658 | ||
3659 | /* It's a global; Find its entry in the link hash. */ | |
3660 | indx = r_symndx - symtab_hdr->sh_info; | |
3661 | h = ((struct elf32_hppa_link_hash_entry *) | |
3662 | elf_sym_hashes (input_bfd)[indx]); | |
3663 | while (h->elf.root.type == bfd_link_hash_indirect | |
3664 | || h->elf.root.type == bfd_link_hash_warning) | |
3665 | h = (struct elf32_hppa_link_hash_entry *) h->elf.root.u.i.link; | |
3666 | ||
3667 | relocation = 0; | |
3668 | if (h->elf.root.type == bfd_link_hash_defined | |
3669 | || h->elf.root.type == bfd_link_hash_defweak) | |
3670 | { | |
3671 | sym_sec = h->elf.root.u.def.section; | |
3672 | /* If sym_sec->output_section is NULL, then it's a | |
3673 | symbol defined in a shared library. */ | |
3674 | if (sym_sec->output_section != NULL) | |
3675 | relocation = (h->elf.root.u.def.value | |
3676 | + sym_sec->output_offset | |
3677 | + sym_sec->output_section->vma); | |
3678 | } | |
3679 | else if (h->elf.root.type == bfd_link_hash_undefweak) | |
3680 | ; | |
3681 | else if (info->shared && !info->no_undefined | |
49e9d0d3 AM |
3682 | && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
3683 | && h->elf.type != STT_PARISC_MILLI) | |
30667bf3 | 3684 | { |
671bae9c | 3685 | if (info->symbolic && !info->allow_shlib_undefined) |
30667bf3 AM |
3686 | if (!((*info->callbacks->undefined_symbol) |
3687 | (info, h->elf.root.root.string, input_bfd, | |
3688 | input_section, rel->r_offset, false))) | |
3689 | return false; | |
3690 | } | |
3691 | else | |
3692 | { | |
3693 | if (!((*info->callbacks->undefined_symbol) | |
3694 | (info, h->elf.root.root.string, input_bfd, | |
3695 | input_section, rel->r_offset, true))) | |
3696 | return false; | |
3697 | } | |
3698 | } | |
3699 | ||
3700 | /* Do any required modifications to the relocation value, and | |
25f72752 AM |
3701 | determine what types of dynamic info we need to output, if |
3702 | any. */ | |
74d1c347 | 3703 | plabel = 0; |
30667bf3 AM |
3704 | switch (r_type) |
3705 | { | |
3706 | case R_PARISC_DLTIND14F: | |
3707 | case R_PARISC_DLTIND14R: | |
3708 | case R_PARISC_DLTIND21L: | |
ce757d15 AM |
3709 | { |
3710 | bfd_vma off; | |
3711 | boolean do_got = 0; | |
3712 | ||
3713 | /* Relocation is to the entry for this symbol in the | |
3714 | global offset table. */ | |
3715 | if (h != NULL) | |
3716 | { | |
3717 | boolean dyn; | |
3718 | ||
3719 | off = h->elf.got.offset; | |
3720 | dyn = htab->elf.dynamic_sections_created; | |
3721 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf)) | |
3722 | { | |
3723 | /* If we aren't going to call finish_dynamic_symbol, | |
3724 | then we need to handle initialisation of the .got | |
3725 | entry and create needed relocs here. Since the | |
3726 | offset must always be a multiple of 4, we use the | |
3727 | least significant bit to record whether we have | |
3728 | initialised it already. */ | |
3729 | if ((off & 1) != 0) | |
3730 | off &= ~1; | |
3731 | else | |
3732 | { | |
3733 | h->elf.got.offset |= 1; | |
3734 | do_got = 1; | |
3735 | } | |
3736 | } | |
3737 | } | |
3738 | else | |
3739 | { | |
3740 | /* Local symbol case. */ | |
3741 | if (local_got_offsets == NULL) | |
3742 | abort (); | |
3743 | ||
3744 | off = local_got_offsets[r_symndx]; | |
3745 | ||
3746 | /* The offset must always be a multiple of 4. We use | |
3747 | the least significant bit to record whether we have | |
3748 | already generated the necessary reloc. */ | |
3749 | if ((off & 1) != 0) | |
3750 | off &= ~1; | |
3751 | else | |
3752 | { | |
3753 | local_got_offsets[r_symndx] |= 1; | |
3754 | do_got = 1; | |
3755 | } | |
3756 | } | |
68fb2e56 | 3757 | |
ce757d15 AM |
3758 | if (do_got) |
3759 | { | |
3760 | if (info->shared) | |
3761 | { | |
3762 | /* Output a dynamic relocation for this GOT entry. | |
3763 | In this case it is relative to the base of the | |
3764 | object because the symbol index is zero. */ | |
3765 | Elf_Internal_Rela outrel; | |
3766 | asection *srelgot = htab->srelgot; | |
3767 | Elf32_External_Rela *loc; | |
3768 | ||
3769 | outrel.r_offset = (off | |
3770 | + htab->sgot->output_offset | |
3771 | + htab->sgot->output_section->vma); | |
3772 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); | |
3773 | outrel.r_addend = relocation; | |
3774 | loc = (Elf32_External_Rela *) srelgot->contents; | |
3775 | loc += srelgot->reloc_count++; | |
3776 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3777 | } | |
3778 | else | |
30667bf3 | 3779 | bfd_put_32 (output_bfd, relocation, |
83c81bfe | 3780 | htab->sgot->contents + off); |
ce757d15 | 3781 | } |
30667bf3 | 3782 | |
ce757d15 AM |
3783 | if (off >= (bfd_vma) -2) |
3784 | abort (); | |
30667bf3 | 3785 | |
ce757d15 AM |
3786 | /* Add the base of the GOT to the relocation value. */ |
3787 | relocation = (off | |
3788 | + htab->sgot->output_offset | |
3789 | + htab->sgot->output_section->vma); | |
3790 | } | |
30667bf3 | 3791 | break; |
252b5132 | 3792 | |
c46b7515 AM |
3793 | case R_PARISC_SEGREL32: |
3794 | /* If this is the first SEGREL relocation, then initialize | |
3795 | the segment base values. */ | |
83c81bfe AM |
3796 | if (htab->text_segment_base == (bfd_vma) -1) |
3797 | bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); | |
c46b7515 AM |
3798 | break; |
3799 | ||
30667bf3 AM |
3800 | case R_PARISC_PLABEL14R: |
3801 | case R_PARISC_PLABEL21L: | |
3802 | case R_PARISC_PLABEL32: | |
ebe50bae | 3803 | if (htab->elf.dynamic_sections_created) |
252b5132 | 3804 | { |
ce757d15 AM |
3805 | bfd_vma off; |
3806 | boolean do_plt = 0; | |
3807 | ||
74d1c347 AM |
3808 | /* If we have a global symbol with a PLT slot, then |
3809 | redirect this relocation to it. */ | |
3810 | if (h != NULL) | |
3811 | { | |
3812 | off = h->elf.plt.offset; | |
4dc86686 | 3813 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, &h->elf)) |
8dea1268 AM |
3814 | { |
3815 | /* In a non-shared link, adjust_dynamic_symbols | |
3816 | isn't called for symbols forced local. We | |
dc810e39 | 3817 | need to write out the plt entry here. */ |
8dea1268 AM |
3818 | if ((off & 1) != 0) |
3819 | off &= ~1; | |
3820 | else | |
3821 | { | |
8dea1268 | 3822 | h->elf.plt.offset |= 1; |
ce757d15 | 3823 | do_plt = 1; |
8dea1268 AM |
3824 | } |
3825 | } | |
74d1c347 AM |
3826 | } |
3827 | else | |
3828 | { | |
68fb2e56 AM |
3829 | bfd_vma *local_plt_offsets; |
3830 | ||
3831 | if (local_got_offsets == NULL) | |
3832 | abort (); | |
74d1c347 | 3833 | |
68fb2e56 AM |
3834 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3835 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3836 | |
3837 | /* As for the local .got entry case, we use the last | |
3838 | bit to record whether we've already initialised | |
3839 | this local .plt entry. */ | |
3840 | if ((off & 1) != 0) | |
3841 | off &= ~1; | |
ce757d15 AM |
3842 | else |
3843 | { | |
3844 | local_plt_offsets[r_symndx] |= 1; | |
3845 | do_plt = 1; | |
3846 | } | |
3847 | } | |
3848 | ||
3849 | if (do_plt) | |
3850 | { | |
3851 | if (info->shared) | |
3852 | { | |
3853 | /* Output a dynamic IPLT relocation for this | |
3854 | PLT entry. */ | |
3855 | Elf_Internal_Rela outrel; | |
3856 | asection *srelplt = htab->srelplt; | |
3857 | Elf32_External_Rela *loc; | |
3858 | ||
3859 | outrel.r_offset = (off | |
3860 | + htab->splt->output_offset | |
3861 | + htab->splt->output_section->vma); | |
3862 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3863 | outrel.r_addend = relocation; | |
3864 | loc = (Elf32_External_Rela *) srelplt->contents; | |
3865 | loc += srelplt->reloc_count++; | |
3866 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3867 | } | |
74d1c347 AM |
3868 | else |
3869 | { | |
3870 | bfd_put_32 (output_bfd, | |
3871 | relocation, | |
83c81bfe | 3872 | htab->splt->contents + off); |
74d1c347 | 3873 | bfd_put_32 (output_bfd, |
83c81bfe AM |
3874 | elf_gp (htab->splt->output_section->owner), |
3875 | htab->splt->contents + off + 4); | |
74d1c347 AM |
3876 | } |
3877 | } | |
3878 | ||
68fb2e56 | 3879 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3880 | abort (); |
74d1c347 AM |
3881 | |
3882 | /* PLABELs contain function pointers. Relocation is to | |
3883 | the entry for the function in the .plt. The magic +2 | |
3884 | offset signals to $$dyncall that the function pointer | |
3885 | is in the .plt and thus has a gp pointer too. | |
3886 | Exception: Undefined PLABELs should have a value of | |
3887 | zero. */ | |
3888 | if (h == NULL | |
3889 | || (h->elf.root.type != bfd_link_hash_undefweak | |
3890 | && h->elf.root.type != bfd_link_hash_undefined)) | |
3891 | { | |
3892 | relocation = (off | |
83c81bfe AM |
3893 | + htab->splt->output_offset |
3894 | + htab->splt->output_section->vma | |
74d1c347 AM |
3895 | + 2); |
3896 | } | |
3897 | plabel = 1; | |
30667bf3 AM |
3898 | } |
3899 | /* Fall through and possibly emit a dynamic relocation. */ | |
3900 | ||
3901 | case R_PARISC_DIR17F: | |
3902 | case R_PARISC_DIR17R: | |
47d89dba | 3903 | case R_PARISC_DIR14F: |
30667bf3 AM |
3904 | case R_PARISC_DIR14R: |
3905 | case R_PARISC_DIR21L: | |
3906 | case R_PARISC_DPREL14F: | |
3907 | case R_PARISC_DPREL14R: | |
3908 | case R_PARISC_DPREL21L: | |
3909 | case R_PARISC_DIR32: | |
ec338859 AM |
3910 | /* r_symndx will be zero only for relocs against symbols |
3911 | from removed linkonce sections, or sections discarded by | |
3912 | a linker script. */ | |
3913 | if (r_symndx == 0 | |
3914 | || (input_section->flags & SEC_ALLOC) == 0) | |
3915 | break; | |
3916 | ||
30667bf3 | 3917 | /* The reloc types handled here and this conditional |
56882138 | 3918 | expression must match the code in ..check_relocs and |
ec338859 | 3919 | allocate_dynrelocs. ie. We need exactly the same condition |
56882138 AM |
3920 | as in ..check_relocs, with some extra conditions (dynindx |
3921 | test in this case) to cater for relocs removed by | |
ec338859 | 3922 | allocate_dynrelocs. If you squint, the non-shared test |
56882138 AM |
3923 | here does indeed match the one in ..check_relocs, the |
3924 | difference being that here we test DEF_DYNAMIC as well as | |
3925 | !DEF_REGULAR. All common syms end up with !DEF_REGULAR, | |
3926 | which is why we can't use just that test here. | |
3927 | Conversely, DEF_DYNAMIC can't be used in check_relocs as | |
3928 | there all files have not been loaded. */ | |
446f2863 | 3929 | if ((info->shared |
446f2863 AM |
3930 | && (IS_ABSOLUTE_RELOC (r_type) |
3931 | || (h != NULL | |
3932 | && h->elf.dynindx != -1 | |
3933 | && (!info->symbolic | |
3934 | || (h->elf.elf_link_hash_flags | |
3935 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
3936 | || (!info->shared | |
446f2863 AM |
3937 | && h != NULL |
3938 | && h->elf.dynindx != -1 | |
3939 | && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
56882138 AM |
3940 | && (((h->elf.elf_link_hash_flags |
3941 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
3942 | && (h->elf.elf_link_hash_flags | |
3943 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
446f2863 AM |
3944 | || h->elf.root.type == bfd_link_hash_undefweak |
3945 | || h->elf.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
3946 | { |
3947 | Elf_Internal_Rela outrel; | |
3948 | boolean skip; | |
98ceb8ce AM |
3949 | asection *sreloc; |
3950 | Elf32_External_Rela *loc; | |
252b5132 | 3951 | |
30667bf3 AM |
3952 | /* When generating a shared object, these relocations |
3953 | are copied into the output file to be resolved at run | |
3954 | time. */ | |
252b5132 | 3955 | |
30667bf3 AM |
3956 | outrel.r_offset = rel->r_offset; |
3957 | outrel.r_addend = rel->r_addend; | |
3958 | skip = false; | |
3959 | if (elf_section_data (input_section)->stab_info != NULL) | |
edd21aca | 3960 | { |
ce757d15 AM |
3961 | bfd_vma off; |
3962 | ||
30667bf3 | 3963 | off = (_bfd_stab_section_offset |
ebe50bae | 3964 | (output_bfd, &htab->elf.stab_info, |
30667bf3 AM |
3965 | input_section, |
3966 | &elf_section_data (input_section)->stab_info, | |
3967 | rel->r_offset)); | |
3968 | if (off == (bfd_vma) -1) | |
3969 | skip = true; | |
3970 | outrel.r_offset = off; | |
edd21aca | 3971 | } |
252b5132 | 3972 | |
30667bf3 AM |
3973 | outrel.r_offset += (input_section->output_offset |
3974 | + input_section->output_section->vma); | |
3975 | ||
3976 | if (skip) | |
252b5132 | 3977 | { |
30667bf3 | 3978 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 3979 | } |
74d1c347 AM |
3980 | else if (h != NULL |
3981 | && h->elf.dynindx != -1 | |
3982 | && (plabel | |
446f2863 AM |
3983 | || !IS_ABSOLUTE_RELOC (r_type) |
3984 | || !info->shared | |
74d1c347 | 3985 | || !info->symbolic |
30667bf3 AM |
3986 | || (h->elf.elf_link_hash_flags |
3987 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
252b5132 | 3988 | { |
30667bf3 AM |
3989 | outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type); |
3990 | } | |
3991 | else /* It's a local symbol, or one marked to become local. */ | |
3992 | { | |
3993 | int indx = 0; | |
edd21aca | 3994 | |
30667bf3 AM |
3995 | /* Add the absolute offset of the symbol. */ |
3996 | outrel.r_addend += relocation; | |
edd21aca | 3997 | |
74d1c347 AM |
3998 | /* Global plabels need to be processed by the |
3999 | dynamic linker so that functions have at most one | |
4000 | fptr. For this reason, we need to differentiate | |
4001 | between global and local plabels, which we do by | |
4002 | providing the function symbol for a global plabel | |
4003 | reloc, and no symbol for local plabels. */ | |
4004 | if (! plabel | |
4005 | && sym_sec != NULL | |
30667bf3 AM |
4006 | && sym_sec->output_section != NULL |
4007 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 4008 | { |
30667bf3 AM |
4009 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
4010 | /* We are turning this relocation into one | |
4011 | against a section symbol, so subtract out the | |
4012 | output section's address but not the offset | |
4013 | of the input section in the output section. */ | |
4014 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 4015 | } |
252b5132 | 4016 | |
30667bf3 AM |
4017 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
4018 | } | |
68fb2e56 AM |
4019 | #if 0 |
4020 | /* EH info can cause unaligned DIR32 relocs. | |
4021 | Tweak the reloc type for the dynamic linker. */ | |
4022 | if (r_type == R_PARISC_DIR32 && (outrel.r_offset & 3) != 0) | |
4023 | outrel.r_info = ELF32_R_INFO (ELF32_R_SYM (outrel.r_info), | |
4024 | R_PARISC_DIR32U); | |
4025 | #endif | |
98ceb8ce AM |
4026 | sreloc = elf_section_data (input_section)->sreloc; |
4027 | if (sreloc == NULL) | |
4028 | abort (); | |
4029 | ||
3ac8354b AM |
4030 | loc = (Elf32_External_Rela *) sreloc->contents; |
4031 | loc += sreloc->reloc_count++; | |
98ceb8ce | 4032 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
30667bf3 AM |
4033 | } |
4034 | break; | |
edd21aca | 4035 | |
30667bf3 AM |
4036 | default: |
4037 | break; | |
4038 | } | |
252b5132 | 4039 | |
30667bf3 | 4040 | r = final_link_relocate (input_section, contents, rel, relocation, |
83c81bfe | 4041 | htab, sym_sec, h); |
252b5132 | 4042 | |
30667bf3 AM |
4043 | if (r == bfd_reloc_ok) |
4044 | continue; | |
252b5132 | 4045 | |
30667bf3 AM |
4046 | if (h != NULL) |
4047 | sym_name = h->elf.root.root.string; | |
4048 | else | |
4049 | { | |
4050 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
4051 | symtab_hdr->sh_link, | |
4052 | sym->st_name); | |
4053 | if (sym_name == NULL) | |
4054 | return false; | |
4055 | if (*sym_name == '\0') | |
4056 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
4057 | } | |
edd21aca | 4058 | |
30667bf3 | 4059 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 4060 | |
30667bf3 AM |
4061 | if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported) |
4062 | { | |
4063 | (*_bfd_error_handler) | |
4064 | (_("%s(%s+0x%lx): cannot handle %s for %s"), | |
8f615d07 | 4065 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
4066 | input_section->name, |
4067 | (long) rel->r_offset, | |
4068 | howto->name, | |
4069 | sym_name); | |
8f615d07 AM |
4070 | bfd_set_error (bfd_error_bad_value); |
4071 | return false; | |
30667bf3 AM |
4072 | } |
4073 | else | |
4074 | { | |
4075 | if (!((*info->callbacks->reloc_overflow) | |
4076 | (info, sym_name, howto->name, (bfd_vma) 0, | |
4077 | input_bfd, input_section, rel->r_offset))) | |
4078 | return false; | |
4079 | } | |
4080 | } | |
edd21aca | 4081 | |
30667bf3 AM |
4082 | return true; |
4083 | } | |
252b5132 | 4084 | |
c46b7515 AM |
4085 | /* Comparison function for qsort to sort unwind section during a |
4086 | final link. */ | |
4087 | ||
4088 | static int | |
4089 | hppa_unwind_entry_compare (a, b) | |
4090 | const PTR a; | |
4091 | const PTR b; | |
4092 | { | |
4093 | const bfd_byte *ap, *bp; | |
4094 | unsigned long av, bv; | |
4095 | ||
4096 | ap = (const bfd_byte *) a; | |
4097 | av = (unsigned long) ap[0] << 24; | |
4098 | av |= (unsigned long) ap[1] << 16; | |
4099 | av |= (unsigned long) ap[2] << 8; | |
4100 | av |= (unsigned long) ap[3]; | |
4101 | ||
4102 | bp = (const bfd_byte *) b; | |
4103 | bv = (unsigned long) bp[0] << 24; | |
4104 | bv |= (unsigned long) bp[1] << 16; | |
4105 | bv |= (unsigned long) bp[2] << 8; | |
4106 | bv |= (unsigned long) bp[3]; | |
4107 | ||
4108 | return av < bv ? -1 : av > bv ? 1 : 0; | |
4109 | } | |
4110 | ||
30667bf3 AM |
4111 | /* Finish up dynamic symbol handling. We set the contents of various |
4112 | dynamic sections here. */ | |
252b5132 | 4113 | |
30667bf3 AM |
4114 | static boolean |
4115 | elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym) | |
4116 | bfd *output_bfd; | |
4117 | struct bfd_link_info *info; | |
4118 | struct elf_link_hash_entry *h; | |
4119 | Elf_Internal_Sym *sym; | |
4120 | { | |
83c81bfe | 4121 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 4122 | |
83c81bfe | 4123 | htab = hppa_link_hash_table (info); |
30667bf3 | 4124 | |
30667bf3 AM |
4125 | if (h->plt.offset != (bfd_vma) -1) |
4126 | { | |
4127 | bfd_vma value; | |
30667bf3 | 4128 | |
8dea1268 AM |
4129 | if (h->plt.offset & 1) |
4130 | abort (); | |
4131 | ||
30667bf3 AM |
4132 | /* This symbol has an entry in the procedure linkage table. Set |
4133 | it up. | |
4134 | ||
4135 | The format of a plt entry is | |
74d1c347 AM |
4136 | <funcaddr> |
4137 | <__gp> | |
47d89dba | 4138 | */ |
30667bf3 AM |
4139 | value = 0; |
4140 | if (h->root.type == bfd_link_hash_defined | |
4141 | || h->root.type == bfd_link_hash_defweak) | |
4142 | { | |
4143 | value = h->root.u.def.value; | |
4144 | if (h->root.u.def.section->output_section != NULL) | |
4145 | value += (h->root.u.def.section->output_offset | |
4146 | + h->root.u.def.section->output_section->vma); | |
252b5132 | 4147 | } |
edd21aca | 4148 | |
74d1c347 | 4149 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call) |
30667bf3 | 4150 | { |
47d89dba | 4151 | Elf_Internal_Rela rel; |
3ac8354b | 4152 | Elf32_External_Rela *loc; |
47d89dba | 4153 | |
30667bf3 AM |
4154 | /* Create a dynamic IPLT relocation for this entry. */ |
4155 | rel.r_offset = (h->plt.offset | |
83c81bfe AM |
4156 | + htab->splt->output_offset |
4157 | + htab->splt->output_section->vma); | |
ce757d15 | 4158 | if (h->dynindx != -1) |
74d1c347 AM |
4159 | { |
4160 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT); | |
4161 | rel.r_addend = 0; | |
4162 | } | |
4163 | else | |
4164 | { | |
4165 | /* This symbol has been marked to become local, and is | |
4166 | used by a plabel so must be kept in the .plt. */ | |
4167 | rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
4168 | rel.r_addend = value; | |
4169 | } | |
30667bf3 | 4170 | |
3ac8354b AM |
4171 | loc = (Elf32_External_Rela *) htab->srelplt->contents; |
4172 | loc += htab->srelplt->reloc_count++; | |
83c81bfe | 4173 | bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, |
3ac8354b | 4174 | &rel, loc); |
30667bf3 | 4175 | } |
ce757d15 | 4176 | else |
47d89dba | 4177 | { |
ce757d15 AM |
4178 | bfd_put_32 (htab->splt->owner, |
4179 | value, | |
4180 | htab->splt->contents + h->plt.offset); | |
4181 | bfd_put_32 (htab->splt->owner, | |
4182 | elf_gp (htab->splt->output_section->owner), | |
4183 | htab->splt->contents + h->plt.offset + 4); | |
47d89dba AM |
4184 | } |
4185 | ||
30667bf3 AM |
4186 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
4187 | { | |
4188 | /* Mark the symbol as undefined, rather than as defined in | |
4189 | the .plt section. Leave the value alone. */ | |
4190 | sym->st_shndx = SHN_UNDEF; | |
4191 | } | |
4192 | } | |
edd21aca | 4193 | |
30667bf3 AM |
4194 | if (h->got.offset != (bfd_vma) -1) |
4195 | { | |
4196 | Elf_Internal_Rela rel; | |
3ac8354b | 4197 | Elf32_External_Rela *loc; |
30667bf3 AM |
4198 | |
4199 | /* This symbol has an entry in the global offset table. Set it | |
4200 | up. */ | |
4201 | ||
4202 | rel.r_offset = ((h->got.offset &~ (bfd_vma) 1) | |
83c81bfe AM |
4203 | + htab->sgot->output_offset |
4204 | + htab->sgot->output_section->vma); | |
30667bf3 | 4205 | |
4dc86686 AM |
4206 | /* If this is a -Bsymbolic link and the symbol is defined |
4207 | locally or was forced to be local because of a version file, | |
4208 | we just want to emit a RELATIVE reloc. The entry in the | |
4209 | global offset table will already have been initialized in the | |
4210 | relocate_section function. */ | |
4211 | if (info->shared | |
4212 | && (info->symbolic || h->dynindx == -1) | |
4213 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
30667bf3 | 4214 | { |
74d1c347 | 4215 | rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
4216 | rel.r_addend = (h->root.u.def.value |
4217 | + h->root.u.def.section->output_offset | |
4218 | + h->root.u.def.section->output_section->vma); | |
4219 | } | |
4220 | else | |
4221 | { | |
49e9d0d3 AM |
4222 | if ((h->got.offset & 1) != 0) |
4223 | abort (); | |
30667bf3 | 4224 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
83c81bfe | 4225 | htab->sgot->contents + h->got.offset); |
30667bf3 AM |
4226 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32); |
4227 | rel.r_addend = 0; | |
4228 | } | |
edd21aca | 4229 | |
3ac8354b AM |
4230 | loc = (Elf32_External_Rela *) htab->srelgot->contents; |
4231 | loc += htab->srelgot->reloc_count++; | |
4232 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 | 4233 | } |
edd21aca | 4234 | |
30667bf3 AM |
4235 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
4236 | { | |
4237 | asection *s; | |
4238 | Elf_Internal_Rela rel; | |
3ac8354b | 4239 | Elf32_External_Rela *loc; |
30667bf3 AM |
4240 | |
4241 | /* This symbol needs a copy reloc. Set it up. */ | |
4242 | ||
49e9d0d3 AM |
4243 | if (! (h->dynindx != -1 |
4244 | && (h->root.type == bfd_link_hash_defined | |
4245 | || h->root.type == bfd_link_hash_defweak))) | |
4246 | abort (); | |
30667bf3 | 4247 | |
83c81bfe | 4248 | s = htab->srelbss; |
30667bf3 AM |
4249 | |
4250 | rel.r_offset = (h->root.u.def.value | |
4251 | + h->root.u.def.section->output_offset | |
4252 | + h->root.u.def.section->output_section->vma); | |
4253 | rel.r_addend = 0; | |
4254 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY); | |
3ac8354b AM |
4255 | loc = (Elf32_External_Rela *) s->contents + s->reloc_count++; |
4256 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 AM |
4257 | } |
4258 | ||
4259 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
4260 | if (h->root.root.string[0] == '_' | |
4261 | && (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4262 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)) | |
4263 | { | |
4264 | sym->st_shndx = SHN_ABS; | |
4265 | } | |
4266 | ||
4267 | return true; | |
4268 | } | |
4269 | ||
98ceb8ce AM |
4270 | /* Used to decide how to sort relocs in an optimal manner for the |
4271 | dynamic linker, before writing them out. */ | |
4272 | ||
4273 | static enum elf_reloc_type_class | |
4274 | elf32_hppa_reloc_type_class (rela) | |
4275 | const Elf_Internal_Rela *rela; | |
4276 | { | |
4277 | if (ELF32_R_SYM (rela->r_info) == 0) | |
4278 | return reloc_class_relative; | |
4279 | ||
4280 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4281 | { | |
4282 | case R_PARISC_IPLT: | |
4283 | return reloc_class_plt; | |
4284 | case R_PARISC_COPY: | |
4285 | return reloc_class_copy; | |
4286 | default: | |
4287 | return reloc_class_normal; | |
4288 | } | |
4289 | } | |
4290 | ||
30667bf3 AM |
4291 | /* Finish up the dynamic sections. */ |
4292 | ||
4293 | static boolean | |
4294 | elf32_hppa_finish_dynamic_sections (output_bfd, info) | |
4295 | bfd *output_bfd; | |
4296 | struct bfd_link_info *info; | |
4297 | { | |
4298 | bfd *dynobj; | |
83c81bfe | 4299 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
4300 | asection *sdyn; |
4301 | ||
83c81bfe | 4302 | htab = hppa_link_hash_table (info); |
ebe50bae | 4303 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
4304 | |
4305 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4306 | ||
ebe50bae | 4307 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
4308 | { |
4309 | Elf32_External_Dyn *dyncon, *dynconend; | |
4310 | ||
49e9d0d3 AM |
4311 | if (sdyn == NULL) |
4312 | abort (); | |
30667bf3 AM |
4313 | |
4314 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
4315 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4316 | for (; dyncon < dynconend; dyncon++) | |
edd21aca | 4317 | { |
30667bf3 AM |
4318 | Elf_Internal_Dyn dyn; |
4319 | asection *s; | |
4320 | ||
4321 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4322 | ||
4323 | switch (dyn.d_tag) | |
4324 | { | |
4325 | default: | |
3ac8354b | 4326 | continue; |
30667bf3 AM |
4327 | |
4328 | case DT_PLTGOT: | |
4329 | /* Use PLTGOT to set the GOT register. */ | |
4330 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
30667bf3 AM |
4331 | break; |
4332 | ||
4333 | case DT_JMPREL: | |
83c81bfe | 4334 | s = htab->srelplt; |
30667bf3 | 4335 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
30667bf3 AM |
4336 | break; |
4337 | ||
4338 | case DT_PLTRELSZ: | |
83c81bfe | 4339 | s = htab->srelplt; |
30667bf3 AM |
4340 | if (s->_cooked_size != 0) |
4341 | dyn.d_un.d_val = s->_cooked_size; | |
4342 | else | |
4343 | dyn.d_un.d_val = s->_raw_size; | |
30667bf3 | 4344 | break; |
4e12ff7f AM |
4345 | |
4346 | case DT_RELASZ: | |
4347 | /* Don't count procedure linkage table relocs in the | |
4348 | overall reloc count. */ | |
4349 | if (htab->srelplt != NULL) | |
4350 | { | |
4351 | s = htab->srelplt->output_section; | |
4352 | if (s->_cooked_size != 0) | |
4353 | dyn.d_un.d_val -= s->_cooked_size; | |
4354 | else | |
4355 | dyn.d_un.d_val -= s->_raw_size; | |
4356 | } | |
4357 | break; | |
30667bf3 | 4358 | } |
3ac8354b AM |
4359 | |
4360 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
edd21aca | 4361 | } |
252b5132 | 4362 | } |
edd21aca | 4363 | |
83c81bfe | 4364 | if (htab->sgot != NULL && htab->sgot->_raw_size != 0) |
30667bf3 | 4365 | { |
74d1c347 AM |
4366 | /* Fill in the first entry in the global offset table. |
4367 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 AM |
4368 | bfd_put_32 (output_bfd, |
4369 | (sdyn != NULL | |
4370 | ? sdyn->output_section->vma + sdyn->output_offset | |
4371 | : (bfd_vma) 0), | |
83c81bfe | 4372 | htab->sgot->contents); |
30667bf3 | 4373 | |
74d1c347 | 4374 | /* The second entry is reserved for use by the dynamic linker. */ |
83c81bfe | 4375 | memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4376 | |
30667bf3 | 4377 | /* Set .got entry size. */ |
83c81bfe | 4378 | elf_section_data (htab->sgot->output_section) |
74d1c347 | 4379 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; |
30667bf3 AM |
4380 | } |
4381 | ||
83c81bfe | 4382 | if (htab->splt != NULL && htab->splt->_raw_size != 0) |
47d89dba AM |
4383 | { |
4384 | /* Set plt entry size. */ | |
83c81bfe | 4385 | elf_section_data (htab->splt->output_section) |
47d89dba AM |
4386 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; |
4387 | ||
83c81bfe | 4388 | if (htab->need_plt_stub) |
47d89dba AM |
4389 | { |
4390 | /* Set up the .plt stub. */ | |
83c81bfe AM |
4391 | memcpy (htab->splt->contents |
4392 | + htab->splt->_raw_size - sizeof (plt_stub), | |
47d89dba AM |
4393 | plt_stub, sizeof (plt_stub)); |
4394 | ||
83c81bfe AM |
4395 | if ((htab->splt->output_offset |
4396 | + htab->splt->output_section->vma | |
4397 | + htab->splt->_raw_size) | |
4398 | != (htab->sgot->output_offset | |
4399 | + htab->sgot->output_section->vma)) | |
47d89dba AM |
4400 | { |
4401 | (*_bfd_error_handler) | |
4402 | (_(".got section not immediately after .plt section")); | |
4403 | return false; | |
4404 | } | |
4405 | } | |
4406 | } | |
30667bf3 | 4407 | |
252b5132 | 4408 | return true; |
30667bf3 | 4409 | } |
252b5132 | 4410 | |
d952f17a AM |
4411 | /* Tweak the OSABI field of the elf header. */ |
4412 | ||
4413 | static void | |
4414 | elf32_hppa_post_process_headers (abfd, link_info) | |
4415 | bfd *abfd; | |
4416 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
4417 | { | |
4418 | Elf_Internal_Ehdr * i_ehdrp; | |
4419 | ||
4420 | i_ehdrp = elf_elfheader (abfd); | |
4421 | ||
4422 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
4423 | { | |
4424 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
4425 | } | |
4426 | else | |
4427 | { | |
4428 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; | |
4429 | } | |
4430 | } | |
4431 | ||
30667bf3 AM |
4432 | /* Called when writing out an object file to decide the type of a |
4433 | symbol. */ | |
4434 | static int | |
4435 | elf32_hppa_elf_get_symbol_type (elf_sym, type) | |
4436 | Elf_Internal_Sym *elf_sym; | |
4437 | int type; | |
4438 | { | |
4439 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4440 | return STT_PARISC_MILLI; | |
4441 | else | |
4442 | return type; | |
252b5132 RH |
4443 | } |
4444 | ||
4445 | /* Misc BFD support code. */ | |
30667bf3 AM |
4446 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4447 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4448 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4449 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4450 | |
252b5132 | 4451 | /* Stuff for the BFD linker. */ |
c46b7515 | 4452 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 AM |
4453 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
4454 | #define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook | |
4455 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol | |
ebe50bae | 4456 | #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol |
30667bf3 AM |
4457 | #define elf_backend_check_relocs elf32_hppa_check_relocs |
4458 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4459 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4460 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4461 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4462 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4463 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4464 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4465 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4466 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
4467 | #define elf_backend_object_p elf32_hppa_object_p | |
4468 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d952f17a | 4469 | #define elf_backend_post_process_headers elf32_hppa_post_process_headers |
30667bf3 | 4470 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
98ceb8ce | 4471 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
30667bf3 AM |
4472 | |
4473 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4474 | #define elf_backend_can_refcount 1 |
30667bf3 AM |
4475 | #define elf_backend_plt_alignment 2 |
4476 | #define elf_backend_want_got_plt 0 | |
4477 | #define elf_backend_plt_readonly 0 | |
4478 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4479 | #define elf_backend_got_header_size 8 |
252b5132 RH |
4480 | |
4481 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4482 | #define TARGET_BIG_NAME "elf32-hppa" | |
4483 | #define ELF_ARCH bfd_arch_hppa | |
4484 | #define ELF_MACHINE_CODE EM_PARISC | |
4485 | #define ELF_MAXPAGESIZE 0x1000 | |
4486 | ||
4487 | #include "elf32-target.h" | |
d952f17a AM |
4488 | |
4489 | #undef TARGET_BIG_SYM | |
4490 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec | |
4491 | #undef TARGET_BIG_NAME | |
4492 | #define TARGET_BIG_NAME "elf32-hppa-linux" | |
4493 | ||
4494 | #define INCLUDED_TARGET_FILE 1 | |
4495 | #include "elf32-target.h" |