Commit | Line | Data |
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252b5132 | 1 | /* BFD back-end for HP PA-RISC ELF files. |
e5094212 AM |
2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001, |
3 | 2002 Free Software Foundation, Inc. | |
252b5132 | 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 | |
edd21aca | 35 | #include "elf32-hppa.h" |
189c6563 | 36 | #include "elf-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 | 337 | static void elf32_hppa_hide_symbol |
e5094212 | 338 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, boolean)); |
74d1c347 | 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); |
f09ebc7d AM |
594 | if (hash != NULL) |
595 | hash->stub_cache = stub_entry; | |
30667bf3 AM |
596 | |
597 | free (stub_name); | |
edd21aca | 598 | } |
30667bf3 AM |
599 | |
600 | return stub_entry; | |
601 | } | |
602 | ||
30667bf3 AM |
603 | /* Add a new stub entry to the stub hash. Not all fields of the new |
604 | stub entry are initialised. */ | |
605 | ||
606 | static struct elf32_hppa_stub_hash_entry * | |
83c81bfe | 607 | hppa_add_stub (stub_name, section, htab) |
30667bf3 AM |
608 | const char *stub_name; |
609 | asection *section; | |
83c81bfe | 610 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 611 | { |
25f72752 | 612 | asection *link_sec; |
30667bf3 | 613 | asection *stub_sec; |
30667bf3 | 614 | struct elf32_hppa_stub_hash_entry *stub_entry; |
edd21aca | 615 | |
83c81bfe AM |
616 | link_sec = htab->stub_group[section->id].link_sec; |
617 | stub_sec = htab->stub_group[section->id].stub_sec; | |
30667bf3 | 618 | if (stub_sec == NULL) |
edd21aca | 619 | { |
83c81bfe | 620 | stub_sec = htab->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
621 | if (stub_sec == NULL) |
622 | { | |
dc810e39 | 623 | bfd_size_type len; |
30667bf3 AM |
624 | char *s_name; |
625 | ||
25f72752 | 626 | len = strlen (link_sec->name) + sizeof (STUB_SUFFIX); |
83c81bfe | 627 | s_name = bfd_alloc (htab->stub_bfd, len); |
30667bf3 AM |
628 | if (s_name == NULL) |
629 | return NULL; | |
630 | ||
25f72752 | 631 | strcpy (s_name, link_sec->name); |
30667bf3 | 632 | strcpy (s_name + len - sizeof (STUB_SUFFIX), STUB_SUFFIX); |
83c81bfe | 633 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
634 | if (stub_sec == NULL) |
635 | return NULL; | |
83c81bfe | 636 | htab->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 637 | } |
83c81bfe | 638 | htab->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 639 | } |
252b5132 | 640 | |
30667bf3 | 641 | /* Enter this entry into the linker stub hash table. */ |
83c81bfe | 642 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
30667bf3 AM |
643 | true, false); |
644 | if (stub_entry == NULL) | |
645 | { | |
646 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
8f615d07 | 647 | bfd_archive_filename (section->owner), |
30667bf3 AM |
648 | stub_name); |
649 | return NULL; | |
edd21aca AM |
650 | } |
651 | ||
30667bf3 | 652 | stub_entry->stub_sec = stub_sec; |
30667bf3 | 653 | stub_entry->stub_offset = 0; |
25f72752 | 654 | stub_entry->id_sec = link_sec; |
30667bf3 | 655 | return stub_entry; |
edd21aca AM |
656 | } |
657 | ||
30667bf3 AM |
658 | /* Determine the type of stub needed, if any, for a call. */ |
659 | ||
660 | static enum elf32_hppa_stub_type | |
661 | hppa_type_of_stub (input_sec, rel, hash, destination) | |
662 | asection *input_sec; | |
663 | const Elf_Internal_Rela *rel; | |
664 | struct elf32_hppa_link_hash_entry *hash; | |
665 | bfd_vma destination; | |
edd21aca | 666 | { |
edd21aca | 667 | bfd_vma location; |
30667bf3 AM |
668 | bfd_vma branch_offset; |
669 | bfd_vma max_branch_offset; | |
670 | unsigned int r_type; | |
671 | ||
672 | if (hash != NULL | |
673 | && (((hash->elf.root.type == bfd_link_hash_defined | |
74d1c347 AM |
674 | || hash->elf.root.type == bfd_link_hash_defweak) |
675 | && hash->elf.root.u.def.section->output_section == NULL) | |
676 | || (hash->elf.root.type == bfd_link_hash_defweak | |
677 | && hash->elf.dynindx != -1 | |
678 | && hash->elf.plt.offset != (bfd_vma) -1) | |
30667bf3 AM |
679 | || hash->elf.root.type == bfd_link_hash_undefweak |
680 | || hash->elf.root.type == bfd_link_hash_undefined | |
12cca0d2 | 681 | || (hash->maybe_pic_call && !(input_sec->flags & SEC_HAS_GOT_REF)))) |
30667bf3 AM |
682 | { |
683 | /* If output_section is NULL, then it's a symbol defined in a | |
684 | shared library. We will need an import stub. Decide between | |
74d1c347 AM |
685 | hppa_stub_import and hppa_stub_import_shared later. For |
686 | shared links we need stubs for undefined or weak syms too; | |
687 | They will presumably be resolved by the dynamic linker. */ | |
30667bf3 AM |
688 | return hppa_stub_import; |
689 | } | |
edd21aca | 690 | |
30667bf3 AM |
691 | /* Determine where the call point is. */ |
692 | location = (input_sec->output_offset | |
693 | + input_sec->output_section->vma | |
694 | + rel->r_offset); | |
edd21aca | 695 | |
30667bf3 AM |
696 | branch_offset = destination - location - 8; |
697 | r_type = ELF32_R_TYPE (rel->r_info); | |
edd21aca | 698 | |
30667bf3 AM |
699 | /* Determine if a long branch stub is needed. parisc branch offsets |
700 | are relative to the second instruction past the branch, ie. +8 | |
701 | bytes on from the branch instruction location. The offset is | |
702 | signed and counts in units of 4 bytes. */ | |
703 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 704 | { |
30667bf3 AM |
705 | max_branch_offset = (1 << (17-1)) << 2; |
706 | } | |
707 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
708 | { | |
709 | max_branch_offset = (1 << (12-1)) << 2; | |
710 | } | |
25f72752 | 711 | else /* R_PARISC_PCREL22F. */ |
30667bf3 AM |
712 | { |
713 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
714 | } |
715 | ||
30667bf3 | 716 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
717 | return hppa_stub_long_branch; |
718 | ||
30667bf3 AM |
719 | return hppa_stub_none; |
720 | } | |
edd21aca | 721 | |
30667bf3 AM |
722 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
723 | IN_ARG contains the link info pointer. */ | |
edd21aca | 724 | |
30667bf3 AM |
725 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
726 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 727 | |
30667bf3 | 728 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 729 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 730 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 731 | |
3ee1d854 AM |
732 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
733 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 734 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 735 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 736 | |
3ee1d854 AM |
737 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
738 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 739 | |
30667bf3 AM |
740 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
741 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
742 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
743 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 744 | |
30667bf3 AM |
745 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
746 | #define NOP 0x08000240 /* nop */ | |
747 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
748 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
749 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 750 | |
30667bf3 AM |
751 | #ifndef R19_STUBS |
752 | #define R19_STUBS 1 | |
753 | #endif | |
edd21aca | 754 | |
30667bf3 AM |
755 | #if R19_STUBS |
756 | #define LDW_R1_DLT LDW_R1_R19 | |
757 | #else | |
758 | #define LDW_R1_DLT LDW_R1_DP | |
759 | #endif | |
edd21aca | 760 | |
30667bf3 AM |
761 | static boolean |
762 | hppa_build_one_stub (gen_entry, in_arg) | |
763 | struct bfd_hash_entry *gen_entry; | |
764 | PTR in_arg; | |
765 | { | |
766 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
767 | struct bfd_link_info *info; | |
83c81bfe | 768 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
769 | asection *stub_sec; |
770 | bfd *stub_bfd; | |
771 | bfd_byte *loc; | |
772 | bfd_vma sym_value; | |
74d1c347 | 773 | bfd_vma insn; |
8dea1268 | 774 | bfd_vma off; |
74d1c347 | 775 | int val; |
30667bf3 | 776 | int size; |
edd21aca | 777 | |
30667bf3 AM |
778 | /* Massage our args to the form they really have. */ |
779 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
780 | info = (struct bfd_link_info *) in_arg; | |
781 | ||
83c81bfe | 782 | htab = hppa_link_hash_table (info); |
30667bf3 | 783 | stub_sec = stub_entry->stub_sec; |
edd21aca | 784 | |
30667bf3 | 785 | /* Make a note of the offset within the stubs for this entry. */ |
74d1c347 | 786 | stub_entry->stub_offset = stub_sec->_raw_size; |
30667bf3 | 787 | loc = stub_sec->contents + stub_entry->stub_offset; |
252b5132 | 788 | |
30667bf3 AM |
789 | stub_bfd = stub_sec->owner; |
790 | ||
791 | switch (stub_entry->stub_type) | |
792 | { | |
793 | case hppa_stub_long_branch: | |
794 | /* Create the long branch. A long branch is formed with "ldil" | |
795 | loading the upper bits of the target address into a register, | |
796 | then branching with "be" which adds in the lower bits. | |
797 | The "be" has its delay slot nullified. */ | |
798 | sym_value = (stub_entry->target_value | |
799 | + stub_entry->target_section->output_offset | |
800 | + stub_entry->target_section->output_section->vma); | |
801 | ||
74d1c347 AM |
802 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel); |
803 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); | |
30667bf3 AM |
804 | bfd_put_32 (stub_bfd, insn, loc); |
805 | ||
74d1c347 AM |
806 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel) >> 2; |
807 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); | |
30667bf3 AM |
808 | bfd_put_32 (stub_bfd, insn, loc + 4); |
809 | ||
30667bf3 | 810 | size = 8; |
edd21aca AM |
811 | break; |
812 | ||
30667bf3 AM |
813 | case hppa_stub_long_branch_shared: |
814 | /* Branches are relative. This is where we are going to. */ | |
815 | sym_value = (stub_entry->target_value | |
816 | + stub_entry->target_section->output_offset | |
817 | + stub_entry->target_section->output_section->vma); | |
818 | ||
819 | /* And this is where we are coming from, more or less. */ | |
820 | sym_value -= (stub_entry->stub_offset | |
821 | + stub_sec->output_offset | |
822 | + stub_sec->output_section->vma); | |
823 | ||
74d1c347 | 824 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 825 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 826 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
827 | bfd_put_32 (stub_bfd, insn, loc + 4); |
828 | ||
47d89dba | 829 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 830 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
831 | bfd_put_32 (stub_bfd, insn, loc + 8); |
832 | size = 12; | |
833 | break; | |
edd21aca | 834 | |
30667bf3 AM |
835 | case hppa_stub_import: |
836 | case hppa_stub_import_shared: | |
8dea1268 AM |
837 | off = stub_entry->h->elf.plt.offset; |
838 | if (off >= (bfd_vma) -2) | |
49e9d0d3 | 839 | abort (); |
8dea1268 AM |
840 | |
841 | off &= ~ (bfd_vma) 1; | |
842 | sym_value = (off | |
83c81bfe AM |
843 | + htab->splt->output_offset |
844 | + htab->splt->output_section->vma | |
845 | - elf_gp (htab->splt->output_section->owner)); | |
30667bf3 AM |
846 | |
847 | insn = ADDIL_DP; | |
848 | #if R19_STUBS | |
849 | if (stub_entry->stub_type == hppa_stub_import_shared) | |
850 | insn = ADDIL_R19; | |
851 | #endif | |
47d89dba | 852 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel), |
74d1c347 | 853 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 854 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 855 | |
47d89dba AM |
856 | /* It is critical to use lrsel/rrsel here because we are using |
857 | two different offsets (+0 and +4) from sym_value. If we use | |
858 | lsel/rsel then with unfortunate sym_values we will round | |
859 | sym_value+4 up to the next 2k block leading to a mis-match | |
860 | between the lsel and rsel value. */ | |
861 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel); | |
74d1c347 | 862 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 863 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 864 | |
83c81bfe | 865 | if (htab->multi_subspace) |
30667bf3 | 866 | { |
47d89dba | 867 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 868 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 869 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 870 | |
74d1c347 AM |
871 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
872 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
873 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
874 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 875 | |
30667bf3 AM |
876 | size = 28; |
877 | } | |
878 | else | |
879 | { | |
74d1c347 | 880 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 881 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 882 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 883 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 884 | |
30667bf3 AM |
885 | size = 16; |
886 | } | |
252b5132 | 887 | |
30667bf3 AM |
888 | if (!info->shared |
889 | && stub_entry->h != NULL | |
890 | && stub_entry->h->pic_call) | |
252b5132 | 891 | { |
30667bf3 AM |
892 | /* Build the .plt entry needed to call a PIC function from |
893 | statically linked code. We don't need any relocs. */ | |
894 | bfd *dynobj; | |
895 | struct elf32_hppa_link_hash_entry *eh; | |
896 | bfd_vma value; | |
252b5132 | 897 | |
ebe50bae | 898 | dynobj = htab->elf.dynobj; |
30667bf3 | 899 | eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h; |
252b5132 | 900 | |
49e9d0d3 AM |
901 | if (eh->elf.root.type != bfd_link_hash_defined |
902 | && eh->elf.root.type != bfd_link_hash_defweak) | |
903 | abort (); | |
252b5132 | 904 | |
30667bf3 AM |
905 | value = (eh->elf.root.u.def.value |
906 | + eh->elf.root.u.def.section->output_offset | |
907 | + eh->elf.root.u.def.section->output_section->vma); | |
252b5132 | 908 | |
30667bf3 | 909 | /* Fill in the entry in the procedure linkage table. |
252b5132 | 910 | |
30667bf3 | 911 | The format of a plt entry is |
74d1c347 AM |
912 | <funcaddr> |
913 | <__gp>. */ | |
252b5132 | 914 | |
83c81bfe AM |
915 | bfd_put_32 (htab->splt->owner, value, |
916 | htab->splt->contents + off); | |
917 | value = elf_gp (htab->splt->output_section->owner); | |
918 | bfd_put_32 (htab->splt->owner, value, | |
919 | htab->splt->contents + off + 4); | |
252b5132 | 920 | } |
30667bf3 | 921 | break; |
252b5132 | 922 | |
30667bf3 AM |
923 | case hppa_stub_export: |
924 | /* Branches are relative. This is where we are going to. */ | |
925 | sym_value = (stub_entry->target_value | |
926 | + stub_entry->target_section->output_offset | |
927 | + stub_entry->target_section->output_section->vma); | |
252b5132 | 928 | |
30667bf3 AM |
929 | /* And this is where we are coming from. */ |
930 | sym_value -= (stub_entry->stub_offset | |
931 | + stub_sec->output_offset | |
932 | + stub_sec->output_section->vma); | |
edd21aca | 933 | |
30667bf3 AM |
934 | if (sym_value - 8 + 0x40000 >= 0x80000) |
935 | { | |
edd21aca | 936 | (*_bfd_error_handler) |
30667bf3 | 937 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
8f615d07 | 938 | bfd_archive_filename (stub_entry->target_section->owner), |
30667bf3 AM |
939 | stub_sec->name, |
940 | (long) stub_entry->stub_offset, | |
941 | stub_entry->root.string); | |
942 | bfd_set_error (bfd_error_bad_value); | |
edd21aca | 943 | return false; |
252b5132 | 944 | } |
30667bf3 | 945 | |
74d1c347 AM |
946 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
947 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
30667bf3 AM |
948 | bfd_put_32 (stub_bfd, insn, loc); |
949 | ||
74d1c347 AM |
950 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
951 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
952 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
953 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
954 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
955 | |
956 | /* Point the function symbol at the stub. */ | |
957 | stub_entry->h->elf.root.u.def.section = stub_sec; | |
74d1c347 | 958 | stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size; |
30667bf3 AM |
959 | |
960 | size = 24; | |
961 | break; | |
962 | ||
963 | default: | |
964 | BFD_FAIL (); | |
965 | return false; | |
252b5132 RH |
966 | } |
967 | ||
74d1c347 | 968 | stub_sec->_raw_size += size; |
252b5132 RH |
969 | return true; |
970 | } | |
971 | ||
30667bf3 AM |
972 | #undef LDIL_R1 |
973 | #undef BE_SR4_R1 | |
974 | #undef BL_R1 | |
975 | #undef ADDIL_R1 | |
976 | #undef DEPI_R1 | |
977 | #undef ADDIL_DP | |
978 | #undef LDW_R1_R21 | |
979 | #undef LDW_R1_DLT | |
980 | #undef LDW_R1_R19 | |
981 | #undef ADDIL_R19 | |
982 | #undef LDW_R1_DP | |
983 | #undef LDSID_R21_R1 | |
984 | #undef MTSP_R1 | |
985 | #undef BE_SR0_R21 | |
986 | #undef STW_RP | |
987 | #undef BV_R0_R21 | |
988 | #undef BL_RP | |
989 | #undef NOP | |
990 | #undef LDW_RP | |
991 | #undef LDSID_RP_R1 | |
992 | #undef BE_SR0_RP | |
252b5132 | 993 | |
30667bf3 AM |
994 | /* As above, but don't actually build the stub. Just bump offset so |
995 | we know stub section sizes. */ | |
996 | ||
997 | static boolean | |
998 | hppa_size_one_stub (gen_entry, in_arg) | |
999 | struct bfd_hash_entry *gen_entry; | |
1000 | PTR in_arg; | |
252b5132 | 1001 | { |
30667bf3 | 1002 | struct elf32_hppa_stub_hash_entry *stub_entry; |
83c81bfe | 1003 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1004 | int size; |
1005 | ||
1006 | /* Massage our args to the form they really have. */ | |
1007 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
83c81bfe | 1008 | htab = (struct elf32_hppa_link_hash_table *) in_arg; |
30667bf3 AM |
1009 | |
1010 | if (stub_entry->stub_type == hppa_stub_long_branch) | |
98ceb8ce | 1011 | size = 8; |
30667bf3 AM |
1012 | else if (stub_entry->stub_type == hppa_stub_long_branch_shared) |
1013 | size = 12; | |
1014 | else if (stub_entry->stub_type == hppa_stub_export) | |
1015 | size = 24; | |
74d1c347 | 1016 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 1017 | { |
83c81bfe | 1018 | if (htab->multi_subspace) |
30667bf3 AM |
1019 | size = 28; |
1020 | else | |
1021 | size = 16; | |
1022 | } | |
252b5132 | 1023 | |
74d1c347 | 1024 | stub_entry->stub_sec->_raw_size += size; |
30667bf3 AM |
1025 | return true; |
1026 | } | |
252b5132 | 1027 | |
30667bf3 AM |
1028 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
1029 | Additionally we set the default architecture and machine. */ | |
1030 | ||
1031 | static boolean | |
1032 | elf32_hppa_object_p (abfd) | |
1033 | bfd *abfd; | |
1034 | { | |
24a5e751 L |
1035 | Elf_Internal_Ehdr * i_ehdrp; |
1036 | unsigned int flags; | |
252b5132 | 1037 | |
24a5e751 L |
1038 | i_ehdrp = elf_elfheader (abfd); |
1039 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
1040 | { | |
1041 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX) | |
1042 | return false; | |
1043 | } | |
1044 | else | |
1045 | { | |
1046 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
1047 | return false; | |
1048 | } | |
1049 | ||
1050 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
1051 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
1052 | { | |
1053 | case EFA_PARISC_1_0: | |
1054 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
1055 | case EFA_PARISC_1_1: | |
1056 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
1057 | case EFA_PARISC_2_0: | |
1058 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
1059 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
1060 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
1061 | } | |
1062 | return true; | |
252b5132 RH |
1063 | } |
1064 | ||
252b5132 RH |
1065 | /* Undo the generic ELF code's subtraction of section->vma from the |
1066 | value of each external symbol. */ | |
1067 | ||
1068 | static boolean | |
1069 | elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
5f771d47 ILT |
1070 | bfd *abfd ATTRIBUTE_UNUSED; |
1071 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1072 | const Elf_Internal_Sym *sym ATTRIBUTE_UNUSED; | |
1073 | const char **namep ATTRIBUTE_UNUSED; | |
1074 | flagword *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
1075 | asection **secp; |
1076 | bfd_vma *valp; | |
1077 | { | |
1078 | *valp += (*secp)->vma; | |
1079 | return true; | |
1080 | } | |
1081 | ||
30667bf3 AM |
1082 | /* Create the .plt and .got sections, and set up our hash table |
1083 | short-cuts to various dynamic sections. */ | |
1084 | ||
1085 | static boolean | |
1086 | elf32_hppa_create_dynamic_sections (abfd, info) | |
1087 | bfd *abfd; | |
1088 | struct bfd_link_info *info; | |
252b5132 | 1089 | { |
83c81bfe | 1090 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 1091 | |
30667bf3 | 1092 | /* Don't try to create the .plt and .got twice. */ |
83c81bfe AM |
1093 | htab = hppa_link_hash_table (info); |
1094 | if (htab->splt != NULL) | |
30667bf3 | 1095 | return true; |
edd21aca | 1096 | |
30667bf3 AM |
1097 | /* Call the generic code to do most of the work. */ |
1098 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
1099 | return false; | |
252b5132 | 1100 | |
83c81bfe AM |
1101 | htab->splt = bfd_get_section_by_name (abfd, ".plt"); |
1102 | htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
30667bf3 | 1103 | |
83c81bfe AM |
1104 | htab->sgot = bfd_get_section_by_name (abfd, ".got"); |
1105 | htab->srelgot = bfd_make_section (abfd, ".rela.got"); | |
1106 | if (htab->srelgot == NULL | |
1107 | || ! bfd_set_section_flags (abfd, htab->srelgot, | |
30667bf3 AM |
1108 | (SEC_ALLOC |
1109 | | SEC_LOAD | |
1110 | | SEC_HAS_CONTENTS | |
1111 | | SEC_IN_MEMORY | |
1112 | | SEC_LINKER_CREATED | |
1113 | | SEC_READONLY)) | |
83c81bfe | 1114 | || ! bfd_set_section_alignment (abfd, htab->srelgot, 2)) |
30667bf3 | 1115 | return false; |
edd21aca | 1116 | |
83c81bfe AM |
1117 | htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
1118 | htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
30667bf3 AM |
1119 | |
1120 | return true; | |
1121 | } | |
1122 | ||
ebe50bae AM |
1123 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1124 | ||
51b64d56 | 1125 | static void |
ebe50bae AM |
1126 | elf32_hppa_copy_indirect_symbol (dir, ind) |
1127 | struct elf_link_hash_entry *dir, *ind; | |
1128 | { | |
1129 | struct elf32_hppa_link_hash_entry *edir, *eind; | |
1130 | ||
1131 | edir = (struct elf32_hppa_link_hash_entry *) dir; | |
1132 | eind = (struct elf32_hppa_link_hash_entry *) ind; | |
1133 | ||
bbd7ec4a | 1134 | if (eind->dyn_relocs != NULL) |
ebe50bae | 1135 | { |
bbd7ec4a AM |
1136 | if (edir->dyn_relocs != NULL) |
1137 | { | |
1138 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1139 | struct elf32_hppa_dyn_reloc_entry *p; | |
1140 | ||
1e370bd2 | 1141 | if (ind->root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
1142 | abort (); |
1143 | ||
1144 | /* Add reloc counts against the weak sym to the strong sym | |
1145 | list. Merge any entries against the same section. */ | |
1146 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
1147 | { | |
1148 | struct elf32_hppa_dyn_reloc_entry *q; | |
1149 | ||
1150 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
1151 | if (q->sec == p->sec) | |
1152 | { | |
1153 | #if RELATIVE_DYNRELOCS | |
1154 | q->relative_count += p->relative_count; | |
1155 | #endif | |
1156 | q->count += p->count; | |
1157 | *pp = p->next; | |
1158 | break; | |
1159 | } | |
1160 | if (q == NULL) | |
1161 | pp = &p->next; | |
1162 | } | |
1163 | *pp = edir->dyn_relocs; | |
1164 | } | |
1165 | ||
ebe50bae AM |
1166 | edir->dyn_relocs = eind->dyn_relocs; |
1167 | eind->dyn_relocs = NULL; | |
1168 | } | |
ebe50bae AM |
1169 | |
1170 | _bfd_elf_link_hash_copy_indirect (dir, ind); | |
1171 | } | |
1172 | ||
30667bf3 | 1173 | /* Look through the relocs for a section during the first phase, and |
3ac8354b AM |
1174 | calculate needed space in the global offset table, procedure linkage |
1175 | table, and dynamic reloc sections. At this point we haven't | |
1176 | necessarily read all the input files. */ | |
252b5132 RH |
1177 | |
1178 | static boolean | |
30667bf3 AM |
1179 | elf32_hppa_check_relocs (abfd, info, sec, relocs) |
1180 | bfd *abfd; | |
1181 | struct bfd_link_info *info; | |
1182 | asection *sec; | |
1183 | const Elf_Internal_Rela *relocs; | |
252b5132 | 1184 | { |
30667bf3 AM |
1185 | Elf_Internal_Shdr *symtab_hdr; |
1186 | struct elf_link_hash_entry **sym_hashes; | |
30667bf3 AM |
1187 | const Elf_Internal_Rela *rel; |
1188 | const Elf_Internal_Rela *rel_end; | |
83c81bfe | 1189 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1190 | asection *sreloc; |
1191 | asection *stubreloc; | |
1192 | ||
1193 | if (info->relocateable) | |
1194 | return true; | |
1195 | ||
83c81bfe | 1196 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1197 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1198 | sym_hashes = elf_sym_hashes (abfd); | |
30667bf3 AM |
1199 | sreloc = NULL; |
1200 | stubreloc = NULL; | |
1201 | ||
1202 | rel_end = relocs + sec->reloc_count; | |
1203 | for (rel = relocs; rel < rel_end; rel++) | |
1204 | { | |
1205 | enum { | |
1206 | NEED_GOT = 1, | |
1207 | NEED_PLT = 2, | |
1208 | NEED_DYNREL = 4, | |
98ceb8ce | 1209 | PLT_PLABEL = 8 |
30667bf3 | 1210 | }; |
edd21aca | 1211 | |
30667bf3 AM |
1212 | unsigned int r_symndx, r_type; |
1213 | struct elf32_hppa_link_hash_entry *h; | |
1214 | int need_entry; | |
252b5132 | 1215 | |
30667bf3 | 1216 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 | 1217 | |
30667bf3 AM |
1218 | if (r_symndx < symtab_hdr->sh_info) |
1219 | h = NULL; | |
1220 | else | |
1221 | h = ((struct elf32_hppa_link_hash_entry *) | |
1222 | sym_hashes[r_symndx - symtab_hdr->sh_info]); | |
252b5132 | 1223 | |
30667bf3 | 1224 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 | 1225 | |
30667bf3 AM |
1226 | switch (r_type) |
1227 | { | |
1228 | case R_PARISC_DLTIND14F: | |
1229 | case R_PARISC_DLTIND14R: | |
1230 | case R_PARISC_DLTIND21L: | |
1231 | /* This symbol requires a global offset table entry. */ | |
1232 | need_entry = NEED_GOT; | |
1233 | ||
1234 | /* Mark this section as containing PIC code. */ | |
1235 | sec->flags |= SEC_HAS_GOT_REF; | |
1236 | break; | |
1237 | ||
1238 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1239 | case R_PARISC_PLABEL21L: | |
1240 | case R_PARISC_PLABEL32: | |
74d1c347 | 1241 | /* If the addend is non-zero, we break badly. */ |
49e9d0d3 AM |
1242 | if (rel->r_addend != 0) |
1243 | abort (); | |
74d1c347 AM |
1244 | |
1245 | /* If we are creating a shared library, then we need to | |
1246 | create a PLT entry for all PLABELs, because PLABELs with | |
1247 | local symbols may be passed via a pointer to another | |
1248 | object. Additionally, output a dynamic relocation | |
4dc86686 AM |
1249 | pointing to the PLT entry. |
1250 | For executables, the original 32-bit ABI allowed two | |
1251 | different styles of PLABELs (function pointers): For | |
1252 | global functions, the PLABEL word points into the .plt | |
1253 | two bytes past a (function address, gp) pair, and for | |
1254 | local functions the PLABEL points directly at the | |
1255 | function. The magic +2 for the first type allows us to | |
1256 | differentiate between the two. As you can imagine, this | |
1257 | is a real pain when it comes to generating code to call | |
1258 | functions indirectly or to compare function pointers. | |
1259 | We avoid the mess by always pointing a PLABEL into the | |
1260 | .plt, even for local functions. */ | |
74d1c347 | 1261 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1262 | break; |
1263 | ||
1264 | case R_PARISC_PCREL12F: | |
83c81bfe | 1265 | htab->has_12bit_branch = 1; |
47d89dba | 1266 | /* Fall thru. */ |
30667bf3 AM |
1267 | case R_PARISC_PCREL17C: |
1268 | case R_PARISC_PCREL17F: | |
83c81bfe | 1269 | htab->has_17bit_branch = 1; |
47d89dba | 1270 | /* Fall thru. */ |
30667bf3 | 1271 | case R_PARISC_PCREL22F: |
47d89dba AM |
1272 | /* Function calls might need to go through the .plt, and |
1273 | might require long branch stubs. */ | |
30667bf3 AM |
1274 | if (h == NULL) |
1275 | { | |
1276 | /* We know local syms won't need a .plt entry, and if | |
1277 | they need a long branch stub we can't guarantee that | |
1278 | we can reach the stub. So just flag an error later | |
1279 | if we're doing a shared link and find we need a long | |
1280 | branch stub. */ | |
1281 | continue; | |
1282 | } | |
1283 | else | |
1284 | { | |
1285 | /* Global symbols will need a .plt entry if they remain | |
1286 | global, and in most cases won't need a long branch | |
1287 | stub. Unfortunately, we have to cater for the case | |
1288 | where a symbol is forced local by versioning, or due | |
1289 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1290 | need_entry = NEED_PLT; |
4dc86686 | 1291 | if (h->elf.type == STT_PARISC_MILLI) |
98ceb8ce | 1292 | need_entry = 0; |
30667bf3 AM |
1293 | } |
1294 | break; | |
1295 | ||
1296 | case R_PARISC_SEGBASE: /* Used to set segment base. */ | |
c46b7515 | 1297 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1298 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1299 | case R_PARISC_PCREL14R: | |
1300 | case R_PARISC_PCREL17R: /* External branches. */ | |
1301 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
1302 | /* We don't need to propagate the relocation if linking a | |
1303 | shared object since these are section relative. */ | |
1304 | continue; | |
1305 | ||
1306 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1307 | case R_PARISC_DPREL14R: | |
1308 | case R_PARISC_DPREL21L: | |
1309 | if (info->shared) | |
1310 | { | |
1311 | (*_bfd_error_handler) | |
1312 | (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1313 | bfd_archive_filename (abfd), |
30667bf3 AM |
1314 | elf_hppa_howto_table[r_type].name); |
1315 | bfd_set_error (bfd_error_bad_value); | |
1316 | return false; | |
1317 | } | |
1318 | /* Fall through. */ | |
1319 | ||
1320 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1321 | case R_PARISC_DIR17R: | |
47d89dba AM |
1322 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1323 | case R_PARISC_DIR14R: | |
30667bf3 AM |
1324 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
1325 | #if 1 | |
1326 | /* Help debug shared library creation. Any of the above | |
1327 | relocs can be used in shared libs, but they may cause | |
1328 | pages to become unshared. */ | |
1329 | if (info->shared) | |
1330 | { | |
1331 | (*_bfd_error_handler) | |
1332 | (_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1333 | bfd_archive_filename (abfd), |
30667bf3 AM |
1334 | elf_hppa_howto_table[r_type].name); |
1335 | } | |
1336 | /* Fall through. */ | |
1337 | #endif | |
1338 | ||
c46b7515 | 1339 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1340 | /* We may want to output a dynamic relocation later. */ |
1341 | need_entry = NEED_DYNREL; | |
1342 | break; | |
1343 | ||
1344 | /* This relocation describes the C++ object vtable hierarchy. | |
1345 | Reconstruct it for later use during GC. */ | |
1346 | case R_PARISC_GNU_VTINHERIT: | |
1347 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, | |
1348 | &h->elf, rel->r_offset)) | |
1349 | return false; | |
1350 | continue; | |
1351 | ||
1352 | /* This relocation describes which C++ vtable entries are actually | |
1353 | used. Record for later use during GC. */ | |
1354 | case R_PARISC_GNU_VTENTRY: | |
1355 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, | |
36605136 | 1356 | &h->elf, rel->r_addend)) |
30667bf3 AM |
1357 | return false; |
1358 | continue; | |
1359 | ||
1360 | default: | |
1361 | continue; | |
1362 | } | |
1363 | ||
1364 | /* Now carry out our orders. */ | |
1365 | if (need_entry & NEED_GOT) | |
1366 | { | |
1367 | /* Allocate space for a GOT entry, as well as a dynamic | |
25f72752 | 1368 | relocation for this entry. */ |
83c81bfe | 1369 | if (htab->sgot == NULL) |
30667bf3 | 1370 | { |
3ac8354b AM |
1371 | if (htab->elf.dynobj == NULL) |
1372 | htab->elf.dynobj = abfd; | |
1373 | if (!elf32_hppa_create_dynamic_sections (htab->elf.dynobj, info)) | |
30667bf3 AM |
1374 | return false; |
1375 | } | |
1376 | ||
1377 | if (h != NULL) | |
1378 | { | |
51b64d56 | 1379 | h->elf.got.refcount += 1; |
30667bf3 AM |
1380 | } |
1381 | else | |
1382 | { | |
3ac8354b AM |
1383 | bfd_signed_vma *local_got_refcounts; |
1384 | ||
30667bf3 | 1385 | /* This is a global offset table entry for a local symbol. */ |
3ac8354b | 1386 | local_got_refcounts = elf_local_got_refcounts (abfd); |
30667bf3 AM |
1387 | if (local_got_refcounts == NULL) |
1388 | { | |
dc810e39 | 1389 | bfd_size_type size; |
30667bf3 | 1390 | |
74d1c347 AM |
1391 | /* Allocate space for local got offsets and local |
1392 | plt offsets. Done this way to save polluting | |
1393 | elf_obj_tdata with another target specific | |
1394 | pointer. */ | |
dc810e39 AM |
1395 | size = symtab_hdr->sh_info; |
1396 | size *= 2 * sizeof (bfd_signed_vma); | |
30667bf3 | 1397 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1398 | bfd_zalloc (abfd, size)); |
30667bf3 AM |
1399 | if (local_got_refcounts == NULL) |
1400 | return false; | |
1401 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
30667bf3 | 1402 | } |
ebe50bae | 1403 | local_got_refcounts[r_symndx] += 1; |
30667bf3 AM |
1404 | } |
1405 | } | |
1406 | ||
1407 | if (need_entry & NEED_PLT) | |
1408 | { | |
1409 | /* If we are creating a shared library, and this is a reloc | |
1410 | against a weak symbol or a global symbol in a dynamic | |
1411 | object, then we will be creating an import stub and a | |
1412 | .plt entry for the symbol. Similarly, on a normal link | |
1413 | to symbols defined in a dynamic object we'll need the | |
1414 | import stub and a .plt entry. We don't know yet whether | |
1415 | the symbol is defined or not, so make an entry anyway and | |
1416 | clean up later in adjust_dynamic_symbol. */ | |
1417 | if ((sec->flags & SEC_ALLOC) != 0) | |
1418 | { | |
74d1c347 | 1419 | if (h != NULL) |
30667bf3 | 1420 | { |
51b64d56 AM |
1421 | h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
1422 | h->elf.plt.refcount += 1; | |
74d1c347 | 1423 | |
36605136 AM |
1424 | /* If this .plt entry is for a plabel, mark it so |
1425 | that adjust_dynamic_symbol will keep the entry | |
1426 | even if it appears to be local. */ | |
74d1c347 AM |
1427 | if (need_entry & PLT_PLABEL) |
1428 | h->plabel = 1; | |
1429 | } | |
1430 | else if (need_entry & PLT_PLABEL) | |
1431 | { | |
3ac8354b | 1432 | bfd_signed_vma *local_got_refcounts; |
68fb2e56 | 1433 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 | 1434 | |
3ac8354b | 1435 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1436 | if (local_got_refcounts == NULL) |
1437 | { | |
dc810e39 | 1438 | bfd_size_type size; |
74d1c347 AM |
1439 | |
1440 | /* Allocate space for local got offsets and local | |
1441 | plt offsets. */ | |
dc810e39 AM |
1442 | size = symtab_hdr->sh_info; |
1443 | size *= 2 * sizeof (bfd_signed_vma); | |
74d1c347 | 1444 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1445 | bfd_zalloc (abfd, size)); |
74d1c347 AM |
1446 | if (local_got_refcounts == NULL) |
1447 | return false; | |
1448 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
74d1c347 | 1449 | } |
68fb2e56 AM |
1450 | local_plt_refcounts = (local_got_refcounts |
1451 | + symtab_hdr->sh_info); | |
ebe50bae | 1452 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1453 | } |
30667bf3 AM |
1454 | } |
1455 | } | |
1456 | ||
98ceb8ce | 1457 | if (need_entry & NEED_DYNREL) |
30667bf3 AM |
1458 | { |
1459 | /* Flag this symbol as having a non-got, non-plt reference | |
1460 | so that we generate copy relocs if it turns out to be | |
1461 | dynamic. */ | |
ebe50bae | 1462 | if (h != NULL && !info->shared) |
30667bf3 AM |
1463 | h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; |
1464 | ||
1465 | /* If we are creating a shared library then we need to copy | |
1466 | the reloc into the shared library. However, if we are | |
1467 | linking with -Bsymbolic, we need only copy absolute | |
1468 | relocs or relocs against symbols that are not defined in | |
1469 | an object we are including in the link. PC- or DP- or | |
1470 | DLT-relative relocs against any local sym or global sym | |
1471 | with DEF_REGULAR set, can be discarded. At this point we | |
1472 | have not seen all the input files, so it is possible that | |
1473 | DEF_REGULAR is not set now but will be set later (it is | |
1474 | never cleared). We account for that possibility below by | |
98ceb8ce | 1475 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1476 | hash table entry. |
1477 | ||
1478 | A similar situation to the -Bsymbolic case occurs when | |
1479 | creating shared libraries and symbol visibility changes | |
1480 | render the symbol local. | |
1481 | ||
1482 | As it turns out, all the relocs we will be creating here | |
1483 | are absolute, so we cannot remove them on -Bsymbolic | |
1484 | links or visibility changes anyway. A STUB_REL reloc | |
1485 | is absolute too, as in that case it is the reloc in the | |
1486 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1487 | reloc in the branch. |
1488 | ||
1489 | If on the other hand, we are creating an executable, we | |
1490 | may need to keep relocations for symbols satisfied by a | |
1491 | dynamic library if we manage to avoid copy relocs for the | |
1492 | symbol. */ | |
446f2863 AM |
1493 | if ((info->shared |
1494 | && (sec->flags & SEC_ALLOC) != 0 | |
1495 | && (IS_ABSOLUTE_RELOC (r_type) | |
1496 | || (h != NULL | |
1497 | && (!info->symbolic | |
1498 | || h->elf.root.type == bfd_link_hash_defweak | |
1499 | || (h->elf.elf_link_hash_flags | |
1500 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1501 | || (!info->shared | |
1502 | && (sec->flags & SEC_ALLOC) != 0 | |
1503 | && h != NULL | |
446f2863 AM |
1504 | && (h->elf.root.type == bfd_link_hash_defweak |
1505 | || (h->elf.elf_link_hash_flags | |
1506 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
30667bf3 | 1507 | { |
ec338859 AM |
1508 | struct elf32_hppa_dyn_reloc_entry *p; |
1509 | struct elf32_hppa_dyn_reloc_entry **head; | |
1510 | ||
30667bf3 AM |
1511 | /* Create a reloc section in dynobj and make room for |
1512 | this reloc. */ | |
98ceb8ce | 1513 | if (sreloc == NULL) |
30667bf3 AM |
1514 | { |
1515 | char *name; | |
3ac8354b | 1516 | bfd *dynobj; |
30667bf3 | 1517 | |
98ceb8ce AM |
1518 | name = (bfd_elf_string_from_elf_section |
1519 | (abfd, | |
1520 | elf_elfheader (abfd)->e_shstrndx, | |
1521 | elf_section_data (sec)->rel_hdr.sh_name)); | |
30667bf3 AM |
1522 | if (name == NULL) |
1523 | { | |
1524 | (*_bfd_error_handler) | |
1525 | (_("Could not find relocation section for %s"), | |
1526 | sec->name); | |
1527 | bfd_set_error (bfd_error_bad_value); | |
1528 | return false; | |
1529 | } | |
1530 | ||
3ac8354b AM |
1531 | if (htab->elf.dynobj == NULL) |
1532 | htab->elf.dynobj = abfd; | |
1533 | ||
1534 | dynobj = htab->elf.dynobj; | |
98ceb8ce AM |
1535 | sreloc = bfd_get_section_by_name (dynobj, name); |
1536 | if (sreloc == NULL) | |
30667bf3 AM |
1537 | { |
1538 | flagword flags; | |
1539 | ||
98ceb8ce | 1540 | sreloc = bfd_make_section (dynobj, name); |
30667bf3 AM |
1541 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1542 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1543 | if ((sec->flags & SEC_ALLOC) != 0) | |
1544 | flags |= SEC_ALLOC | SEC_LOAD; | |
98ceb8ce AM |
1545 | if (sreloc == NULL |
1546 | || !bfd_set_section_flags (dynobj, sreloc, flags) | |
1547 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) | |
30667bf3 AM |
1548 | return false; |
1549 | } | |
30667bf3 | 1550 | |
98ceb8ce | 1551 | elf_section_data (sec)->sreloc = sreloc; |
30667bf3 AM |
1552 | } |
1553 | ||
98ceb8ce AM |
1554 | /* If this is a global symbol, we count the number of |
1555 | relocations we need for this symbol. */ | |
1556 | if (h != NULL) | |
30667bf3 | 1557 | { |
ec338859 AM |
1558 | head = &h->dyn_relocs; |
1559 | } | |
1560 | else | |
1561 | { | |
1562 | /* Track dynamic relocs needed for local syms too. | |
1563 | We really need local syms available to do this | |
1564 | easily. Oh well. */ | |
1565 | ||
1566 | asection *s; | |
1567 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
1568 | sec, r_symndx); | |
1569 | if (s == NULL) | |
1570 | return false; | |
30667bf3 | 1571 | |
ec338859 AM |
1572 | head = ((struct elf32_hppa_dyn_reloc_entry **) |
1573 | &elf_section_data (s)->local_dynrel); | |
1574 | } | |
1575 | ||
1576 | p = *head; | |
1577 | if (p == NULL || p->sec != sec) | |
1578 | { | |
1579 | p = ((struct elf32_hppa_dyn_reloc_entry *) | |
1580 | bfd_alloc (htab->elf.dynobj, | |
1581 | (bfd_size_type) sizeof *p)); | |
1582 | if (p == NULL) | |
1583 | return false; | |
1584 | p->next = *head; | |
1585 | *head = p; | |
1586 | p->sec = sec; | |
1587 | p->count = 0; | |
98ceb8ce | 1588 | #if RELATIVE_DYNRELOCS |
ec338859 | 1589 | p->relative_count = 0; |
98ceb8ce | 1590 | #endif |
ec338859 | 1591 | } |
98ceb8ce | 1592 | |
ec338859 | 1593 | p->count += 1; |
98ceb8ce | 1594 | #if RELATIVE_DYNRELOCS |
ec338859 AM |
1595 | if (!IS_ABSOLUTE_RELOC (rtype)) |
1596 | p->relative_count += 1; | |
98ceb8ce | 1597 | #endif |
30667bf3 AM |
1598 | } |
1599 | } | |
1600 | } | |
edd21aca AM |
1601 | |
1602 | return true; | |
1603 | } | |
1604 | ||
30667bf3 AM |
1605 | /* Return the section that should be marked against garbage collection |
1606 | for a given relocation. */ | |
1607 | ||
1608 | static asection * | |
1609 | elf32_hppa_gc_mark_hook (abfd, info, rel, h, sym) | |
1610 | bfd *abfd; | |
1611 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1612 | Elf_Internal_Rela *rel; | |
1613 | struct elf_link_hash_entry *h; | |
1614 | Elf_Internal_Sym *sym; | |
1615 | { | |
1616 | if (h != NULL) | |
1617 | { | |
1618 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1619 | { | |
1620 | case R_PARISC_GNU_VTINHERIT: | |
1621 | case R_PARISC_GNU_VTENTRY: | |
1622 | break; | |
1623 | ||
1624 | default: | |
1625 | switch (h->root.type) | |
1626 | { | |
1627 | case bfd_link_hash_defined: | |
1628 | case bfd_link_hash_defweak: | |
1629 | return h->root.u.def.section; | |
1630 | ||
1631 | case bfd_link_hash_common: | |
1632 | return h->root.u.c.p->section; | |
1633 | ||
1634 | default: | |
1635 | break; | |
1636 | } | |
1637 | } | |
1638 | } | |
1639 | else | |
1640 | { | |
9ad5cbcf | 1641 | return bfd_section_from_elf_index (abfd, sym->st_shndx); |
30667bf3 AM |
1642 | } |
1643 | ||
1644 | return NULL; | |
1645 | } | |
1646 | ||
30667bf3 AM |
1647 | /* Update the got and plt entry reference counts for the section being |
1648 | removed. */ | |
edd21aca AM |
1649 | |
1650 | static boolean | |
30667bf3 AM |
1651 | elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs) |
1652 | bfd *abfd; | |
1653 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1654 | asection *sec; | |
1655 | const Elf_Internal_Rela *relocs; | |
edd21aca | 1656 | { |
30667bf3 AM |
1657 | Elf_Internal_Shdr *symtab_hdr; |
1658 | struct elf_link_hash_entry **sym_hashes; | |
1659 | bfd_signed_vma *local_got_refcounts; | |
74d1c347 | 1660 | bfd_signed_vma *local_plt_refcounts; |
30667bf3 AM |
1661 | const Elf_Internal_Rela *rel, *relend; |
1662 | unsigned long r_symndx; | |
1663 | struct elf_link_hash_entry *h; | |
83c81bfe | 1664 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 1665 | bfd *dynobj; |
30667bf3 | 1666 | |
ec338859 | 1667 | elf_section_data (sec)->local_dynrel = NULL; |
98ceb8ce | 1668 | |
30667bf3 AM |
1669 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1670 | sym_hashes = elf_sym_hashes (abfd); | |
1671 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
74d1c347 AM |
1672 | local_plt_refcounts = local_got_refcounts; |
1673 | if (local_plt_refcounts != NULL) | |
1674 | local_plt_refcounts += symtab_hdr->sh_info; | |
83c81bfe | 1675 | htab = hppa_link_hash_table (info); |
ebe50bae | 1676 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
1677 | if (dynobj == NULL) |
1678 | return true; | |
1679 | ||
30667bf3 AM |
1680 | relend = relocs + sec->reloc_count; |
1681 | for (rel = relocs; rel < relend; rel++) | |
1682 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1683 | { | |
1684 | case R_PARISC_DLTIND14F: | |
1685 | case R_PARISC_DLTIND14R: | |
1686 | case R_PARISC_DLTIND21L: | |
1687 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1688 | if (r_symndx >= symtab_hdr->sh_info) | |
1689 | { | |
1690 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1691 | if (h->got.refcount > 0) | |
4dc86686 | 1692 | h->got.refcount -= 1; |
30667bf3 AM |
1693 | } |
1694 | else if (local_got_refcounts != NULL) | |
1695 | { | |
1696 | if (local_got_refcounts[r_symndx] > 0) | |
4dc86686 | 1697 | local_got_refcounts[r_symndx] -= 1; |
30667bf3 AM |
1698 | } |
1699 | break; | |
edd21aca | 1700 | |
30667bf3 AM |
1701 | case R_PARISC_PCREL12F: |
1702 | case R_PARISC_PCREL17C: | |
1703 | case R_PARISC_PCREL17F: | |
1704 | case R_PARISC_PCREL22F: | |
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->plt.refcount > 0) | |
1710 | h->plt.refcount -= 1; | |
1711 | } | |
1712 | break; | |
edd21aca | 1713 | |
74d1c347 AM |
1714 | case R_PARISC_PLABEL14R: |
1715 | case R_PARISC_PLABEL21L: | |
1716 | case R_PARISC_PLABEL32: | |
1717 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1718 | if (r_symndx >= symtab_hdr->sh_info) | |
1719 | { | |
98ceb8ce AM |
1720 | struct elf32_hppa_link_hash_entry *eh; |
1721 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1722 | struct elf32_hppa_dyn_reloc_entry *p; | |
1723 | ||
74d1c347 | 1724 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
98ceb8ce | 1725 | |
74d1c347 AM |
1726 | if (h->plt.refcount > 0) |
1727 | h->plt.refcount -= 1; | |
98ceb8ce AM |
1728 | |
1729 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1730 | ||
1731 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1732 | if (p->sec == sec) | |
1733 | { | |
1734 | #if RELATIVE_DYNRELOCS | |
1735 | if (!IS_ABSOLUTE_RELOC (rtype)) | |
1736 | p->relative_count -= 1; | |
1737 | #endif | |
1738 | p->count -= 1; | |
1739 | if (p->count == 0) | |
1740 | *pp = p->next; | |
1741 | break; | |
1742 | } | |
74d1c347 AM |
1743 | } |
1744 | else if (local_plt_refcounts != NULL) | |
1745 | { | |
1746 | if (local_plt_refcounts[r_symndx] > 0) | |
1747 | local_plt_refcounts[r_symndx] -= 1; | |
1748 | } | |
1749 | break; | |
1750 | ||
98ceb8ce AM |
1751 | case R_PARISC_DIR32: |
1752 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1753 | if (r_symndx >= symtab_hdr->sh_info) | |
1754 | { | |
1755 | struct elf32_hppa_link_hash_entry *eh; | |
1756 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1757 | struct elf32_hppa_dyn_reloc_entry *p; | |
1758 | ||
1759 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1760 | ||
1761 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1762 | ||
1763 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1764 | if (p->sec == sec) | |
1765 | { | |
1766 | #if RELATIVE_DYNRELOCS | |
1767 | if (!IS_ABSOLUTE_RELOC (R_PARISC_DIR32)) | |
1768 | p->relative_count -= 1; | |
1769 | #endif | |
1770 | p->count -= 1; | |
1771 | if (p->count == 0) | |
1772 | *pp = p->next; | |
1773 | break; | |
1774 | } | |
1775 | } | |
1776 | break; | |
1777 | ||
30667bf3 AM |
1778 | default: |
1779 | break; | |
1780 | } | |
252b5132 | 1781 | |
252b5132 RH |
1782 | return true; |
1783 | } | |
1784 | ||
74d1c347 AM |
1785 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1786 | plabels. */ | |
1787 | ||
1788 | static void | |
e5094212 AM |
1789 | elf32_hppa_hide_symbol (info, h, force_local) |
1790 | struct bfd_link_info *info; | |
74d1c347 | 1791 | struct elf_link_hash_entry *h; |
e5094212 | 1792 | boolean force_local; |
74d1c347 | 1793 | { |
e5094212 AM |
1794 | if (force_local) |
1795 | { | |
1796 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL; | |
1797 | if (h->dynindx != -1) | |
1798 | { | |
1799 | h->dynindx = -1; | |
1800 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
1801 | h->dynstr_index); | |
1802 | } | |
1803 | } | |
1804 | ||
74d1c347 AM |
1805 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel) |
1806 | { | |
1807 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1808 | h->plt.offset = (bfd_vma) -1; | |
1809 | } | |
1810 | } | |
1811 | ||
4dc86686 AM |
1812 | /* This is the condition under which elf32_hppa_finish_dynamic_symbol |
1813 | will be called from elflink.h. If elflink.h doesn't call our | |
1814 | finish_dynamic_symbol routine, we'll need to do something about | |
1815 | initializing any .plt and .got entries in elf32_hppa_relocate_section. */ | |
1816 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
1817 | ((DYN) \ | |
1818 | && ((INFO)->shared \ | |
1819 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
1820 | && ((H)->dynindx != -1 \ | |
1821 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
1822 | ||
30667bf3 AM |
1823 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1824 | regular object. The current definition is in some section of the | |
1825 | dynamic object, but we're not including those sections. We have to | |
1826 | change the definition to something the rest of the link can | |
1827 | understand. */ | |
252b5132 | 1828 | |
30667bf3 AM |
1829 | static boolean |
1830 | elf32_hppa_adjust_dynamic_symbol (info, h) | |
1831 | struct bfd_link_info *info; | |
1832 | struct elf_link_hash_entry *h; | |
252b5132 | 1833 | { |
83c81bfe | 1834 | struct elf32_hppa_link_hash_table *htab; |
ebe50bae AM |
1835 | struct elf32_hppa_link_hash_entry *eh; |
1836 | struct elf32_hppa_dyn_reloc_entry *p; | |
30667bf3 | 1837 | asection *s; |
3ac8354b | 1838 | unsigned int power_of_two; |
30667bf3 AM |
1839 | |
1840 | /* If this is a function, put it in the procedure linkage table. We | |
1841 | will fill in the contents of the procedure linkage table later, | |
1842 | when we know the address of the .got section. */ | |
1843 | if (h->type == STT_FUNC | |
1844 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1845 | { | |
12cca0d2 AM |
1846 | if (!info->shared |
1847 | && h->plt.refcount > 0 | |
1848 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1849 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0) | |
1850 | { | |
1851 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; | |
1852 | } | |
1853 | ||
30667bf3 AM |
1854 | if (h->plt.refcount <= 0 |
1855 | || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1856 | && h->root.type != bfd_link_hash_defweak | |
74d1c347 | 1857 | && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel |
30667bf3 AM |
1858 | && (!info->shared || info->symbolic))) |
1859 | { | |
1860 | /* The .plt entry is not needed when: | |
1861 | a) Garbage collection has removed all references to the | |
1862 | symbol, or | |
1863 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1864 | object, and it's not a weak definition, nor is the symbol |
1865 | used by a plabel relocation. Either this object is the | |
1866 | application or we are doing a shared symbolic link. */ | |
1867 | ||
1868 | /* As a special sop to the hppa ABI, we keep a .plt entry | |
1869 | for functions in sections containing PIC code. */ | |
12cca0d2 AM |
1870 | if (((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call) |
1871 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; | |
30667bf3 AM |
1872 | else |
1873 | { | |
1874 | h->plt.offset = (bfd_vma) -1; | |
1875 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
30667bf3 | 1876 | } |
30667bf3 | 1877 | } |
4dc86686 | 1878 | |
30667bf3 AM |
1879 | return true; |
1880 | } | |
bbd7ec4a AM |
1881 | else |
1882 | h->plt.offset = (bfd_vma) -1; | |
edd21aca | 1883 | |
30667bf3 AM |
1884 | /* If this is a weak symbol, and there is a real definition, the |
1885 | processor independent code will have arranged for us to see the | |
1886 | real definition first, and we can just use the same value. */ | |
1887 | if (h->weakdef != NULL) | |
edd21aca | 1888 | { |
49e9d0d3 AM |
1889 | if (h->weakdef->root.type != bfd_link_hash_defined |
1890 | && h->weakdef->root.type != bfd_link_hash_defweak) | |
1891 | abort (); | |
30667bf3 AM |
1892 | h->root.u.def.section = h->weakdef->root.u.def.section; |
1893 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
0a991dfe | 1894 | return true; |
30667bf3 | 1895 | } |
edd21aca | 1896 | |
30667bf3 AM |
1897 | /* This is a reference to a symbol defined by a dynamic object which |
1898 | is not a function. */ | |
1899 | ||
1900 | /* If we are creating a shared library, we must presume that the | |
1901 | only references to the symbol are via the global offset table. | |
1902 | For such cases we need not do anything here; the relocations will | |
1903 | be handled correctly by relocate_section. */ | |
1904 | if (info->shared) | |
1905 | return true; | |
1906 | ||
1907 | /* If there are no references to this symbol that do not use the | |
1908 | GOT, we don't need to generate a copy reloc. */ | |
1909 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
1910 | return true; | |
1911 | ||
ebe50bae AM |
1912 | eh = (struct elf32_hppa_link_hash_entry *) h; |
1913 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1914 | { | |
1915 | s = p->sec->output_section; | |
1916 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1917 | break; | |
1918 | } | |
1919 | ||
1920 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1921 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1922 | if (p == NULL) | |
1923 | { | |
1924 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
1925 | return true; | |
1926 | } | |
1927 | ||
30667bf3 AM |
1928 | /* We must allocate the symbol in our .dynbss section, which will |
1929 | become part of the .bss section of the executable. There will be | |
1930 | an entry for this symbol in the .dynsym section. The dynamic | |
1931 | object will contain position independent code, so all references | |
1932 | from the dynamic object to this symbol will go through the global | |
1933 | offset table. The dynamic linker will use the .dynsym entry to | |
1934 | determine the address it must put in the global offset table, so | |
1935 | both the dynamic object and the regular object will refer to the | |
1936 | same memory location for the variable. */ | |
1937 | ||
3ac8354b | 1938 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1939 | |
1940 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1941 | copy the initial value out of the dynamic object and into the | |
3ac8354b | 1942 | runtime process image. */ |
30667bf3 AM |
1943 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
1944 | { | |
3ac8354b | 1945 | htab->srelbss->_raw_size += sizeof (Elf32_External_Rela); |
30667bf3 | 1946 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
edd21aca | 1947 | } |
252b5132 | 1948 | |
3ac8354b AM |
1949 | /* We need to figure out the alignment required for this symbol. I |
1950 | have no idea how other ELF linkers handle this. */ | |
30667bf3 | 1951 | |
3ac8354b AM |
1952 | power_of_two = bfd_log2 (h->size); |
1953 | if (power_of_two > 3) | |
1954 | power_of_two = 3; | |
1955 | ||
1956 | /* Apply the required alignment. */ | |
1957 | s = htab->sdynbss; | |
1958 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1959 | (bfd_size_type) (1 << power_of_two)); | |
1960 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
1961 | { | |
1962 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) | |
1963 | return false; | |
1964 | } | |
30667bf3 | 1965 | |
30667bf3 AM |
1966 | /* Define the symbol as being at this point in the section. */ |
1967 | h->root.u.def.section = s; | |
1968 | h->root.u.def.value = s->_raw_size; | |
edd21aca | 1969 | |
30667bf3 AM |
1970 | /* Increment the section size to make room for the symbol. */ |
1971 | s->_raw_size += h->size; | |
252b5132 RH |
1972 | |
1973 | return true; | |
1974 | } | |
1975 | ||
30667bf3 AM |
1976 | /* Called via elf_link_hash_traverse to create .plt entries for an |
1977 | application that uses statically linked PIC functions. Similar to | |
1978 | the first part of elf32_hppa_adjust_dynamic_symbol. */ | |
252b5132 | 1979 | |
30667bf3 | 1980 | static boolean |
a8d02d66 | 1981 | mark_PIC_calls (h, inf) |
30667bf3 | 1982 | struct elf_link_hash_entry *h; |
4dc86686 | 1983 | PTR inf ATTRIBUTE_UNUSED; |
252b5132 | 1984 | { |
30667bf3 AM |
1985 | if (! (h->plt.refcount > 0 |
1986 | && (h->root.type == bfd_link_hash_defined | |
1987 | || h->root.type == bfd_link_hash_defweak) | |
1988 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)) | |
252b5132 | 1989 | { |
30667bf3 AM |
1990 | h->plt.offset = (bfd_vma) -1; |
1991 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1992 | return true; | |
252b5132 RH |
1993 | } |
1994 | ||
74d1c347 | 1995 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
12cca0d2 | 1996 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; |
30667bf3 | 1997 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
edd21aca | 1998 | |
4dc86686 AM |
1999 | return true; |
2000 | } | |
2001 | ||
e5ee5df1 AM |
2002 | /* Allocate space in the .plt for entries that won't have relocations. |
2003 | ie. pic_call and plabel entries. */ | |
a8d02d66 AM |
2004 | |
2005 | static boolean | |
e5ee5df1 | 2006 | allocate_plt_static (h, inf) |
a8d02d66 AM |
2007 | struct elf_link_hash_entry *h; |
2008 | PTR inf; | |
2009 | { | |
2010 | struct bfd_link_info *info; | |
2011 | struct elf32_hppa_link_hash_table *htab; | |
2012 | asection *s; | |
2013 | ||
2014 | if (h->root.type == bfd_link_hash_indirect | |
2015 | || h->root.type == bfd_link_hash_warning) | |
2016 | return true; | |
2017 | ||
2018 | info = (struct bfd_link_info *) inf; | |
2019 | htab = hppa_link_hash_table (info); | |
2020 | if (((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2021 | { | |
e5ee5df1 AM |
2022 | /* Make an entry in the .plt section for non-pic code that is |
2023 | calling pic code. */ | |
a8d02d66 AM |
2024 | s = htab->splt; |
2025 | h->plt.offset = s->_raw_size; | |
e5ee5df1 AM |
2026 | s->_raw_size += PLT_ENTRY_SIZE; |
2027 | } | |
2028 | else if (htab->elf.dynamic_sections_created | |
2029 | && h->plt.refcount > 0) | |
2030 | { | |
2031 | /* Make sure this symbol is output as a dynamic symbol. | |
2032 | Undefined weak syms won't yet be marked as dynamic. */ | |
2033 | if (h->dynindx == -1 | |
2034 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2035 | && h->type != STT_PARISC_MILLI) | |
a8d02d66 | 2036 | { |
e5ee5df1 AM |
2037 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) |
2038 | return false; | |
2039 | } | |
2040 | ||
2041 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
2042 | { | |
2043 | /* Allocate these later. */ | |
2044 | } | |
2045 | else if (((struct elf32_hppa_link_hash_entry *) h)->plabel) | |
2046 | { | |
2047 | /* Make an entry in the .plt section for plabel references | |
2048 | that won't have a .plt entry for other reasons. */ | |
2049 | s = htab->splt; | |
2050 | h->plt.offset = s->_raw_size; | |
2051 | s->_raw_size += PLT_ENTRY_SIZE; | |
a8d02d66 AM |
2052 | } |
2053 | else | |
e5ee5df1 AM |
2054 | { |
2055 | /* No .plt entry needed. */ | |
2056 | h->plt.offset = (bfd_vma) -1; | |
2057 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2058 | } | |
2059 | } | |
2060 | else | |
2061 | { | |
2062 | h->plt.offset = (bfd_vma) -1; | |
2063 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
a8d02d66 AM |
2064 | } |
2065 | ||
2066 | return true; | |
2067 | } | |
2068 | ||
4dc86686 AM |
2069 | /* Allocate space in .plt, .got and associated reloc sections for |
2070 | global syms. */ | |
2071 | ||
2072 | static boolean | |
98ceb8ce | 2073 | allocate_dynrelocs (h, inf) |
4dc86686 AM |
2074 | struct elf_link_hash_entry *h; |
2075 | PTR inf; | |
2076 | { | |
2077 | struct bfd_link_info *info; | |
83c81bfe | 2078 | struct elf32_hppa_link_hash_table *htab; |
4dc86686 | 2079 | asection *s; |
446f2863 | 2080 | struct elf32_hppa_link_hash_entry *eh; |
98ceb8ce | 2081 | struct elf32_hppa_dyn_reloc_entry *p; |
4dc86686 | 2082 | |
73a74a62 AM |
2083 | if (h->root.type == bfd_link_hash_indirect |
2084 | || h->root.type == bfd_link_hash_warning) | |
2085 | return true; | |
2086 | ||
30667bf3 | 2087 | info = (struct bfd_link_info *) inf; |
83c81bfe | 2088 | htab = hppa_link_hash_table (info); |
e5ee5df1 AM |
2089 | if (htab->elf.dynamic_sections_created |
2090 | && h->plt.offset != (bfd_vma) -1 | |
2091 | && !((struct elf32_hppa_link_hash_entry *) h)->pic_call | |
2092 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
4dc86686 | 2093 | { |
e5ee5df1 AM |
2094 | /* Make an entry in the .plt section. */ |
2095 | s = htab->splt; | |
2096 | h->plt.offset = s->_raw_size; | |
2097 | s->_raw_size += PLT_ENTRY_SIZE; | |
3ac8354b | 2098 | |
e5ee5df1 AM |
2099 | /* We also need to make an entry in the .rela.plt section. */ |
2100 | htab->srelplt->_raw_size += sizeof (Elf32_External_Rela); | |
2101 | htab->need_plt_stub = 1; | |
4dc86686 | 2102 | } |
edd21aca | 2103 | |
4dc86686 AM |
2104 | if (h->got.refcount > 0) |
2105 | { | |
446f2863 AM |
2106 | /* Make sure this symbol is output as a dynamic symbol. |
2107 | Undefined weak syms won't yet be marked as dynamic. */ | |
2108 | if (h->dynindx == -1 | |
2109 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2110 | && h->type != STT_PARISC_MILLI) | |
2111 | { | |
2112 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2113 | return false; | |
2114 | } | |
2115 | ||
83c81bfe | 2116 | s = htab->sgot; |
4dc86686 AM |
2117 | h->got.offset = s->_raw_size; |
2118 | s->_raw_size += GOT_ENTRY_SIZE; | |
ce757d15 AM |
2119 | if (htab->elf.dynamic_sections_created |
2120 | && (info->shared | |
2121 | || (h->dynindx != -1 | |
2122 | && h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)) | |
2123 | { | |
2124 | htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
2125 | } | |
4dc86686 AM |
2126 | } |
2127 | else | |
2128 | h->got.offset = (bfd_vma) -1; | |
30667bf3 | 2129 | |
446f2863 | 2130 | eh = (struct elf32_hppa_link_hash_entry *) h; |
98ceb8ce | 2131 | if (eh->dyn_relocs == NULL) |
446f2863 | 2132 | return true; |
30667bf3 | 2133 | |
98ceb8ce AM |
2134 | /* If this is a -Bsymbolic shared link, then we need to discard all |
2135 | space allocated for dynamic pc-relative relocs against symbols | |
2136 | defined in a regular object. For the normal shared case, discard | |
2137 | space for relocs that have become local due to symbol visibility | |
2138 | changes. */ | |
2139 | if (info->shared) | |
446f2863 | 2140 | { |
98ceb8ce AM |
2141 | #if RELATIVE_DYNRELOCS |
2142 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
2143 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
2144 | || info->symbolic)) | |
446f2863 | 2145 | { |
98ceb8ce | 2146 | struct elf32_hppa_dyn_reloc_entry **pp; |
30667bf3 | 2147 | |
98ceb8ce AM |
2148 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
2149 | { | |
2150 | p->count -= p->relative_count; | |
2151 | p->relative_count = 0; | |
2152 | if (p->count == 0) | |
2153 | *pp = p->next; | |
2154 | else | |
2155 | pp = &p->next; | |
2156 | } | |
2157 | } | |
2158 | #endif | |
446f2863 | 2159 | } |
98ceb8ce | 2160 | else |
30667bf3 | 2161 | { |
98ceb8ce AM |
2162 | /* For the non-shared case, discard space for relocs against |
2163 | symbols which turn out to need copy relocs or are not | |
2164 | dynamic. */ | |
2165 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
2166 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2167 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
ebe50bae | 2168 | || (htab->elf.dynamic_sections_created |
98ceb8ce AM |
2169 | && (h->root.type == bfd_link_hash_undefweak |
2170 | || h->root.type == bfd_link_hash_undefined)))) | |
2171 | { | |
2172 | /* Make sure this symbol is output as a dynamic symbol. | |
2173 | Undefined weak syms won't yet be marked as dynamic. */ | |
2174 | if (h->dynindx == -1 | |
2175 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2176 | && h->type != STT_PARISC_MILLI) | |
2177 | { | |
2178 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2179 | return false; | |
2180 | } | |
2181 | ||
2182 | /* If that succeeded, we know we'll be keeping all the | |
2183 | relocs. */ | |
2184 | if (h->dynindx != -1) | |
2185 | goto keep; | |
2186 | } | |
446f2863 | 2187 | |
98ceb8ce AM |
2188 | eh->dyn_relocs = NULL; |
2189 | return true; | |
2190 | ||
ec338859 | 2191 | keep: ; |
30667bf3 | 2192 | } |
30667bf3 | 2193 | |
98ceb8ce AM |
2194 | /* Finally, allocate space. */ |
2195 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
30667bf3 | 2196 | { |
98ceb8ce AM |
2197 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
2198 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2199 | } |
30667bf3 AM |
2200 | |
2201 | return true; | |
2202 | } | |
30667bf3 | 2203 | |
d5c73c2f AM |
2204 | /* This function is called via elf_link_hash_traverse to force |
2205 | millicode symbols local so they do not end up as globals in the | |
2206 | dynamic symbol table. We ought to be able to do this in | |
2207 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2208 | for all dynamic symbols. Arguably, this is a bug in | |
2209 | elf_adjust_dynamic_symbol. */ | |
2210 | ||
2211 | static boolean | |
2212 | clobber_millicode_symbols (h, info) | |
2213 | struct elf_link_hash_entry *h; | |
2214 | struct bfd_link_info *info; | |
2215 | { | |
142f8c94 AM |
2216 | if (h->type == STT_PARISC_MILLI |
2217 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
e0522e89 | 2218 | { |
e5094212 | 2219 | elf32_hppa_hide_symbol (info, h, true); |
e0522e89 | 2220 | } |
d5c73c2f AM |
2221 | return true; |
2222 | } | |
2223 | ||
98ceb8ce AM |
2224 | /* Find any dynamic relocs that apply to read-only sections. */ |
2225 | ||
2226 | static boolean | |
2227 | readonly_dynrelocs (h, inf) | |
2228 | struct elf_link_hash_entry *h; | |
2229 | PTR inf; | |
2230 | { | |
2231 | struct elf32_hppa_link_hash_entry *eh; | |
2232 | struct elf32_hppa_dyn_reloc_entry *p; | |
2233 | ||
2234 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
2235 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2236 | { | |
2237 | asection *s = p->sec->output_section; | |
2238 | ||
2239 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2240 | { | |
2241 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2242 | ||
2243 | info->flags |= DF_TEXTREL; | |
2244 | ||
2245 | /* Not an error, just cut short the traversal. */ | |
2246 | return false; | |
2247 | } | |
2248 | } | |
2249 | return true; | |
2250 | } | |
2251 | ||
30667bf3 AM |
2252 | /* Set the sizes of the dynamic sections. */ |
2253 | ||
2254 | static boolean | |
2255 | elf32_hppa_size_dynamic_sections (output_bfd, info) | |
98ceb8ce | 2256 | bfd *output_bfd ATTRIBUTE_UNUSED; |
30667bf3 AM |
2257 | struct bfd_link_info *info; |
2258 | { | |
83c81bfe | 2259 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2260 | bfd *dynobj; |
98ceb8ce | 2261 | bfd *ibfd; |
30667bf3 AM |
2262 | asection *s; |
2263 | boolean relocs; | |
30667bf3 | 2264 | |
83c81bfe | 2265 | htab = hppa_link_hash_table (info); |
ebe50bae | 2266 | dynobj = htab->elf.dynobj; |
49e9d0d3 AM |
2267 | if (dynobj == NULL) |
2268 | abort (); | |
30667bf3 | 2269 | |
ebe50bae | 2270 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2271 | { |
2272 | /* Set the contents of the .interp section to the interpreter. */ | |
2273 | if (! info->shared) | |
2274 | { | |
2275 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
49e9d0d3 AM |
2276 | if (s == NULL) |
2277 | abort (); | |
30667bf3 AM |
2278 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; |
2279 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2280 | } | |
74d1c347 | 2281 | |
d5c73c2f | 2282 | /* Force millicode symbols local. */ |
ebe50bae | 2283 | elf_link_hash_traverse (&htab->elf, |
d5c73c2f AM |
2284 | clobber_millicode_symbols, |
2285 | info); | |
68fb2e56 AM |
2286 | } |
2287 | else | |
2288 | { | |
2289 | /* Run through the function symbols, looking for any that are | |
a8d02d66 AM |
2290 | PIC, and mark them as needing .plt entries so that %r19 will |
2291 | be set up. */ | |
68fb2e56 | 2292 | if (! info->shared) |
a8d02d66 | 2293 | elf_link_hash_traverse (&htab->elf, mark_PIC_calls, (PTR) info); |
68fb2e56 | 2294 | } |
d5c73c2f | 2295 | |
98ceb8ce AM |
2296 | /* Set up .got and .plt offsets for local syms, and space for local |
2297 | dynamic relocs. */ | |
2298 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
68fb2e56 AM |
2299 | { |
2300 | bfd_signed_vma *local_got; | |
2301 | bfd_signed_vma *end_local_got; | |
2302 | bfd_signed_vma *local_plt; | |
2303 | bfd_signed_vma *end_local_plt; | |
2304 | bfd_size_type locsymcount; | |
2305 | Elf_Internal_Shdr *symtab_hdr; | |
2306 | asection *srel; | |
74d1c347 | 2307 | |
98ceb8ce | 2308 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2309 | continue; |
4dc86686 | 2310 | |
98ceb8ce AM |
2311 | for (s = ibfd->sections; s != NULL; s = s->next) |
2312 | { | |
ec338859 | 2313 | struct elf32_hppa_dyn_reloc_entry *p; |
98ceb8ce | 2314 | |
ec338859 AM |
2315 | for (p = ((struct elf32_hppa_dyn_reloc_entry *) |
2316 | elf_section_data (s)->local_dynrel); | |
2317 | p != NULL; | |
2318 | p = p->next) | |
98ceb8ce | 2319 | { |
ec338859 AM |
2320 | if (!bfd_is_abs_section (p->sec) |
2321 | && bfd_is_abs_section (p->sec->output_section)) | |
2322 | { | |
2323 | /* Input section has been discarded, either because | |
2324 | it is a copy of a linkonce section or due to | |
2325 | linker script /DISCARD/, so we'll be discarding | |
2326 | the relocs too. */ | |
2327 | } | |
248866a8 | 2328 | else if (p->count != 0) |
ec338859 AM |
2329 | { |
2330 | srel = elf_section_data (p->sec)->sreloc; | |
2331 | srel->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
248866a8 AM |
2332 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
2333 | info->flags |= DF_TEXTREL; | |
ec338859 | 2334 | } |
98ceb8ce AM |
2335 | } |
2336 | } | |
2337 | ||
2338 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2339 | if (!local_got) |
2340 | continue; | |
74d1c347 | 2341 | |
98ceb8ce | 2342 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2343 | locsymcount = symtab_hdr->sh_info; |
2344 | end_local_got = local_got + locsymcount; | |
83c81bfe AM |
2345 | s = htab->sgot; |
2346 | srel = htab->srelgot; | |
68fb2e56 AM |
2347 | for (; local_got < end_local_got; ++local_got) |
2348 | { | |
2349 | if (*local_got > 0) | |
4dc86686 | 2350 | { |
68fb2e56 AM |
2351 | *local_got = s->_raw_size; |
2352 | s->_raw_size += GOT_ENTRY_SIZE; | |
2353 | if (info->shared) | |
2354 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
4dc86686 | 2355 | } |
68fb2e56 AM |
2356 | else |
2357 | *local_got = (bfd_vma) -1; | |
2358 | } | |
74d1c347 | 2359 | |
68fb2e56 AM |
2360 | local_plt = end_local_got; |
2361 | end_local_plt = local_plt + locsymcount; | |
ebe50bae | 2362 | if (! htab->elf.dynamic_sections_created) |
68fb2e56 AM |
2363 | { |
2364 | /* Won't be used, but be safe. */ | |
2365 | for (; local_plt < end_local_plt; ++local_plt) | |
2366 | *local_plt = (bfd_vma) -1; | |
2367 | } | |
2368 | else | |
2369 | { | |
83c81bfe AM |
2370 | s = htab->splt; |
2371 | srel = htab->srelplt; | |
74d1c347 AM |
2372 | for (; local_plt < end_local_plt; ++local_plt) |
2373 | { | |
2374 | if (*local_plt > 0) | |
2375 | { | |
74d1c347 AM |
2376 | *local_plt = s->_raw_size; |
2377 | s->_raw_size += PLT_ENTRY_SIZE; | |
2378 | if (info->shared) | |
4dc86686 | 2379 | srel->_raw_size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2380 | } |
2381 | else | |
2382 | *local_plt = (bfd_vma) -1; | |
2383 | } | |
2384 | } | |
30667bf3 | 2385 | } |
30667bf3 | 2386 | |
e5ee5df1 AM |
2387 | /* Do all the .plt entries without relocs first. The dynamic linker |
2388 | uses the last .plt reloc to find the end of the .plt (and hence | |
2389 | the start of the .got) for lazy linking. */ | |
2390 | elf_link_hash_traverse (&htab->elf, allocate_plt_static, (PTR) info); | |
a8d02d66 | 2391 | |
98ceb8ce AM |
2392 | /* Allocate global sym .plt and .got entries, and space for global |
2393 | sym dynamic relocs. */ | |
ebe50bae | 2394 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); |
30667bf3 AM |
2395 | |
2396 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2397 | determined the sizes of the various dynamic sections. Allocate | |
2398 | memory for them. */ | |
2399 | relocs = false; | |
30667bf3 AM |
2400 | for (s = dynobj->sections; s != NULL; s = s->next) |
2401 | { | |
30667bf3 AM |
2402 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2403 | continue; | |
2404 | ||
83c81bfe | 2405 | if (s == htab->splt) |
68fb2e56 | 2406 | { |
83c81bfe | 2407 | if (htab->need_plt_stub) |
68fb2e56 AM |
2408 | { |
2409 | /* Make space for the plt stub at the end of the .plt | |
2410 | section. We want this stub right at the end, up | |
2411 | against the .got section. */ | |
83c81bfe | 2412 | int gotalign = bfd_section_alignment (dynobj, htab->sgot); |
68fb2e56 AM |
2413 | int pltalign = bfd_section_alignment (dynobj, s); |
2414 | bfd_size_type mask; | |
30667bf3 | 2415 | |
68fb2e56 AM |
2416 | if (gotalign > pltalign) |
2417 | bfd_set_section_alignment (dynobj, s, gotalign); | |
2418 | mask = ((bfd_size_type) 1 << gotalign) - 1; | |
2419 | s->_raw_size = (s->_raw_size + sizeof (plt_stub) + mask) & ~mask; | |
2420 | } | |
2421 | } | |
83c81bfe | 2422 | else if (s == htab->sgot) |
68fb2e56 AM |
2423 | ; |
2424 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) | |
30667bf3 AM |
2425 | { |
2426 | if (s->_raw_size != 0) | |
2427 | { | |
4e12ff7f AM |
2428 | /* Remember whether there are any reloc sections other |
2429 | than .rela.plt. */ | |
2430 | if (s != htab->srelplt) | |
2431 | relocs = true; | |
47d89dba | 2432 | |
30667bf3 AM |
2433 | /* We use the reloc_count field as a counter if we need |
2434 | to copy relocs into the output file. */ | |
2435 | s->reloc_count = 0; | |
2436 | } | |
2437 | } | |
30667bf3 AM |
2438 | else |
2439 | { | |
2440 | /* It's not one of our sections, so don't allocate space. */ | |
2441 | continue; | |
2442 | } | |
2443 | ||
2444 | if (s->_raw_size == 0) | |
2445 | { | |
2446 | /* If we don't need this section, strip it from the | |
2447 | output file. This is mostly to handle .rela.bss and | |
2448 | .rela.plt. We must create both sections in | |
2449 | create_dynamic_sections, because they must be created | |
2450 | before the linker maps input sections to output | |
2451 | sections. The linker does that before | |
2452 | adjust_dynamic_symbol is called, and it is that | |
2453 | function which decides whether anything needs to go | |
2454 | into these sections. */ | |
2455 | _bfd_strip_section_from_output (info, s); | |
2456 | continue; | |
2457 | } | |
2458 | ||
2459 | /* Allocate memory for the section contents. Zero it, because | |
2460 | we may not fill in all the reloc sections. */ | |
2461 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); | |
2462 | if (s->contents == NULL && s->_raw_size != 0) | |
2463 | return false; | |
2464 | } | |
2465 | ||
ebe50bae | 2466 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2467 | { |
2468 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2469 | actually has nothing to do with the PLT, it is how we | |
2470 | communicate the LTP value of a load module to the dynamic | |
2471 | linker. */ | |
dc810e39 AM |
2472 | #define add_dynamic_entry(TAG, VAL) \ |
2473 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
2474 | ||
2475 | if (!add_dynamic_entry (DT_PLTGOT, 0)) | |
30667bf3 AM |
2476 | return false; |
2477 | ||
2478 | /* Add some entries to the .dynamic section. We fill in the | |
2479 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2480 | must add the entries now so that we get the correct size for | |
2481 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2482 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2483 | if (!info->shared) |
30667bf3 | 2484 | { |
dc810e39 | 2485 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
30667bf3 AM |
2486 | return false; |
2487 | } | |
2488 | ||
83c81bfe | 2489 | if (htab->srelplt->_raw_size != 0) |
30667bf3 | 2490 | { |
dc810e39 AM |
2491 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
2492 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2493 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
30667bf3 AM |
2494 | return false; |
2495 | } | |
2496 | ||
2497 | if (relocs) | |
2498 | { | |
dc810e39 AM |
2499 | if (!add_dynamic_entry (DT_RELA, 0) |
2500 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2501 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
30667bf3 | 2502 | return false; |
30667bf3 | 2503 | |
98ceb8ce AM |
2504 | /* If any dynamic relocs apply to a read-only section, |
2505 | then we need a DT_TEXTREL entry. */ | |
248866a8 AM |
2506 | if ((info->flags & DF_TEXTREL) == 0) |
2507 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
2508 | (PTR) info); | |
98ceb8ce AM |
2509 | |
2510 | if ((info->flags & DF_TEXTREL) != 0) | |
2511 | { | |
2512 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
2513 | return false; | |
2514 | } | |
30667bf3 AM |
2515 | } |
2516 | } | |
dc810e39 | 2517 | #undef add_dynamic_entry |
30667bf3 AM |
2518 | |
2519 | return true; | |
2520 | } | |
2521 | ||
30667bf3 AM |
2522 | /* External entry points for sizing and building linker stubs. */ |
2523 | ||
2524 | /* Determine and set the size of the stub section for a final link. | |
2525 | ||
2526 | The basic idea here is to examine all the relocations looking for | |
2527 | PC-relative calls to a target that is unreachable with a "bl" | |
2528 | instruction. */ | |
2529 | ||
2530 | boolean | |
47d89dba | 2531 | elf32_hppa_size_stubs (output_bfd, stub_bfd, info, multi_subspace, group_size, |
30667bf3 | 2532 | add_stub_section, layout_sections_again) |
25f72752 | 2533 | bfd *output_bfd; |
30667bf3 | 2534 | bfd *stub_bfd; |
30667bf3 | 2535 | struct bfd_link_info *info; |
25f72752 | 2536 | boolean multi_subspace; |
47d89dba | 2537 | bfd_signed_vma group_size; |
30667bf3 AM |
2538 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); |
2539 | void (*layout_sections_again) PARAMS ((void)); | |
2540 | { | |
2541 | bfd *input_bfd; | |
2542 | asection *section; | |
25f72752 | 2543 | asection **input_list, **list; |
30667bf3 | 2544 | Elf_Internal_Sym *local_syms, **all_local_syms; |
25f72752 AM |
2545 | unsigned int bfd_indx, bfd_count; |
2546 | int top_id, top_index; | |
83c81bfe | 2547 | struct elf32_hppa_link_hash_table *htab; |
47d89dba AM |
2548 | bfd_size_type stub_group_size; |
2549 | boolean stubs_always_before_branch; | |
30667bf3 | 2550 | boolean stub_changed = 0; |
25f72752 | 2551 | boolean ret = 0; |
dc810e39 | 2552 | bfd_size_type amt; |
30667bf3 | 2553 | |
83c81bfe | 2554 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
2555 | |
2556 | /* Stash our params away. */ | |
83c81bfe AM |
2557 | htab->stub_bfd = stub_bfd; |
2558 | htab->multi_subspace = multi_subspace; | |
2559 | htab->add_stub_section = add_stub_section; | |
2560 | htab->layout_sections_again = layout_sections_again; | |
47d89dba AM |
2561 | stubs_always_before_branch = group_size < 0; |
2562 | if (group_size < 0) | |
2563 | stub_group_size = -group_size; | |
2564 | else | |
2565 | stub_group_size = group_size; | |
2566 | if (stub_group_size == 1) | |
2567 | { | |
2568 | /* Default values. */ | |
a248e267 | 2569 | stub_group_size = 7680000; |
83c81bfe | 2570 | if (htab->has_17bit_branch || htab->multi_subspace) |
a248e267 | 2571 | stub_group_size = 240000; |
83c81bfe | 2572 | if (htab->has_12bit_branch) |
a248e267 | 2573 | stub_group_size = 7500; |
47d89dba | 2574 | } |
30667bf3 | 2575 | |
1badb539 AM |
2576 | /* Count the number of input BFDs and find the top input section id. */ |
2577 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2578 | input_bfd != NULL; |
2579 | input_bfd = input_bfd->link_next) | |
2580 | { | |
2581 | bfd_count += 1; | |
25f72752 AM |
2582 | for (section = input_bfd->sections; |
2583 | section != NULL; | |
2584 | section = section->next) | |
2585 | { | |
2586 | if (top_id < section->id) | |
2587 | top_id = section->id; | |
2588 | } | |
30667bf3 AM |
2589 | } |
2590 | ||
dc810e39 | 2591 | amt = sizeof (struct map_stub) * (top_id + 1); |
83c81bfe AM |
2592 | htab->stub_group = (struct map_stub *) bfd_zmalloc (amt); |
2593 | if (htab->stub_group == NULL) | |
30667bf3 AM |
2594 | return false; |
2595 | ||
1badb539 AM |
2596 | /* Make a list of input sections for each output section included in |
2597 | the link. | |
2598 | ||
2599 | We can't use output_bfd->section_count here to find the top output | |
2600 | section index as some sections may have been removed, and | |
2601 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
2602 | for (section = output_bfd->sections, top_index = 0; | |
2603 | section != NULL; | |
2604 | section = section->next) | |
2605 | { | |
2606 | if (top_index < section->index) | |
2607 | top_index = section->index; | |
2608 | } | |
2609 | ||
dc810e39 AM |
2610 | amt = sizeof (asection *) * (top_index + 1); |
2611 | input_list = (asection **) bfd_malloc (amt); | |
25f72752 AM |
2612 | if (input_list == NULL) |
2613 | return false; | |
2614 | ||
1badb539 AM |
2615 | /* For sections we aren't interested in, mark their entries with a |
2616 | value we can check later. */ | |
2617 | list = input_list + top_index; | |
2618 | do | |
2619 | *list = bfd_abs_section_ptr; | |
2620 | while (list-- != input_list); | |
2621 | ||
2622 | for (section = output_bfd->sections; | |
2623 | section != NULL; | |
2624 | section = section->next) | |
2625 | { | |
47d89dba | 2626 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2627 | input_list[section->index] = NULL; |
2628 | } | |
2629 | ||
2630 | /* Now actually build the lists. */ | |
25f72752 AM |
2631 | for (input_bfd = info->input_bfds; |
2632 | input_bfd != NULL; | |
2633 | input_bfd = input_bfd->link_next) | |
2634 | { | |
2635 | for (section = input_bfd->sections; | |
2636 | section != NULL; | |
2637 | section = section->next) | |
2638 | { | |
2639 | if (section->output_section != NULL | |
1badb539 AM |
2640 | && section->output_section->owner == output_bfd |
2641 | && section->output_section->index <= top_index) | |
25f72752 AM |
2642 | { |
2643 | list = input_list + section->output_section->index; | |
1badb539 AM |
2644 | if (*list != bfd_abs_section_ptr) |
2645 | { | |
2646 | /* Steal the link_sec pointer for our list. */ | |
83c81bfe | 2647 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
1badb539 AM |
2648 | /* This happens to make the list in reverse order, |
2649 | which is what we want. */ | |
2650 | PREV_SEC (section) = *list; | |
2651 | *list = section; | |
2652 | } | |
25f72752 AM |
2653 | } |
2654 | } | |
2655 | } | |
2656 | ||
2657 | /* See whether we can group stub sections together. Grouping stub | |
2658 | sections may result in fewer stubs. More importantly, we need to | |
2659 | put all .init* and .fini* stubs at the beginning of the .init or | |
2660 | .fini output sections respectively, because glibc splits the | |
2661 | _init and _fini functions into multiple parts. Putting a stub in | |
2662 | the middle of a function is not a good idea. */ | |
a017a724 | 2663 | list = input_list + top_index; |
1badb539 | 2664 | do |
25f72752 AM |
2665 | { |
2666 | asection *tail = *list; | |
1badb539 AM |
2667 | if (tail == bfd_abs_section_ptr) |
2668 | continue; | |
25f72752 AM |
2669 | while (tail != NULL) |
2670 | { | |
2671 | asection *curr; | |
2672 | asection *prev; | |
2673 | bfd_size_type total; | |
2674 | ||
2675 | curr = tail; | |
2676 | if (tail->_cooked_size) | |
2677 | total = tail->_cooked_size; | |
2678 | else | |
2679 | total = tail->_raw_size; | |
2680 | while ((prev = PREV_SEC (curr)) != NULL | |
2681 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2682 | < stub_group_size)) |
25f72752 AM |
2683 | curr = prev; |
2684 | ||
2685 | /* OK, the size from the start of CURR to the end is less | |
a248e267 | 2686 | than 240000 bytes and thus can be handled by one stub |
25f72752 | 2687 | section. (or the tail section is itself larger than |
a248e267 | 2688 | 240000 bytes, in which case we may be toast.) |
25f72752 AM |
2689 | We should really be keeping track of the total size of |
2690 | stubs added here, as stubs contribute to the final output | |
2691 | section size. That's a little tricky, and this way will | |
a248e267 AM |
2692 | only break if stubs added total more than 22144 bytes, or |
2693 | 2768 long branch stubs. It seems unlikely for more than | |
2694 | 2768 different functions to be called, especially from | |
2695 | code only 240000 bytes long. This limit used to be | |
2696 | 250000, but c++ code tends to generate lots of little | |
2697 | functions, and sometimes violated the assumption. */ | |
25f72752 AM |
2698 | do |
2699 | { | |
2700 | prev = PREV_SEC (tail); | |
2701 | /* Set up this stub group. */ | |
83c81bfe | 2702 | htab->stub_group[tail->id].link_sec = curr; |
25f72752 AM |
2703 | } |
2704 | while (tail != curr && (tail = prev) != NULL); | |
2705 | ||
a248e267 | 2706 | /* But wait, there's more! Input sections up to 240000 |
25f72752 | 2707 | bytes before the stub section can be handled by it too. */ |
47d89dba | 2708 | if (!stubs_always_before_branch) |
25f72752 | 2709 | { |
47d89dba AM |
2710 | total = 0; |
2711 | while (prev != NULL | |
2712 | && ((total += tail->output_offset - prev->output_offset) | |
2713 | < stub_group_size)) | |
2714 | { | |
2715 | tail = prev; | |
2716 | prev = PREV_SEC (tail); | |
83c81bfe | 2717 | htab->stub_group[tail->id].link_sec = curr; |
47d89dba | 2718 | } |
25f72752 AM |
2719 | } |
2720 | tail = prev; | |
2721 | } | |
2722 | } | |
1badb539 | 2723 | while (list-- != input_list); |
25f72752 | 2724 | free (input_list); |
1badb539 | 2725 | #undef PREV_SEC |
30667bf3 AM |
2726 | |
2727 | /* We want to read in symbol extension records only once. To do this | |
2728 | we need to read in the local symbols in parallel and save them for | |
2729 | later use; so hold pointers to the local symbols in an array. */ | |
dc810e39 AM |
2730 | amt = sizeof (Elf_Internal_Sym *) * bfd_count; |
2731 | all_local_syms = (Elf_Internal_Sym **) bfd_zmalloc (amt); | |
30667bf3 | 2732 | if (all_local_syms == NULL) |
25f72752 | 2733 | return false; |
30667bf3 AM |
2734 | |
2735 | /* Walk over all the input BFDs, swapping in local symbols. | |
2736 | If we are creating a shared library, create hash entries for the | |
2737 | export stubs. */ | |
25f72752 | 2738 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2739 | input_bfd != NULL; |
25f72752 | 2740 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2741 | { |
2742 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 2743 | Elf_Internal_Shdr *shndx_hdr; |
30667bf3 | 2744 | Elf_Internal_Sym *isym; |
25f72752 | 2745 | Elf32_External_Sym *ext_syms, *esym, *end_sy; |
9ad5cbcf | 2746 | Elf_External_Sym_Shndx *shndx_buf, *shndx; |
dc810e39 | 2747 | bfd_size_type sec_size; |
edd21aca | 2748 | |
252b5132 RH |
2749 | /* We'll need the symbol table in a second. */ |
2750 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2751 | if (symtab_hdr->sh_info == 0) | |
2752 | continue; | |
2753 | ||
edd21aca AM |
2754 | /* We need an array of the local symbols attached to the input bfd. |
2755 | Unfortunately, we're going to have to read & swap them in. */ | |
dc810e39 AM |
2756 | sec_size = symtab_hdr->sh_info; |
2757 | sec_size *= sizeof (Elf_Internal_Sym); | |
2758 | local_syms = (Elf_Internal_Sym *) bfd_malloc (sec_size); | |
edd21aca | 2759 | if (local_syms == NULL) |
9ad5cbcf AM |
2760 | goto error_ret_free_local; |
2761 | ||
25f72752 | 2762 | all_local_syms[bfd_indx] = local_syms; |
dc810e39 AM |
2763 | sec_size = symtab_hdr->sh_info; |
2764 | sec_size *= sizeof (Elf32_External_Sym); | |
2765 | ext_syms = (Elf32_External_Sym *) bfd_malloc (sec_size); | |
edd21aca | 2766 | if (ext_syms == NULL) |
9ad5cbcf | 2767 | goto error_ret_free_local; |
edd21aca AM |
2768 | |
2769 | if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
9ad5cbcf | 2770 | || bfd_bread ((PTR) ext_syms, sec_size, input_bfd) != sec_size) |
edd21aca | 2771 | { |
9ad5cbcf | 2772 | error_ret_free_ext_syms: |
edd21aca AM |
2773 | free (ext_syms); |
2774 | goto error_ret_free_local; | |
2775 | } | |
2776 | ||
9ad5cbcf AM |
2777 | shndx_buf = NULL; |
2778 | shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr; | |
2779 | if (shndx_hdr->sh_size != 0) | |
2780 | { | |
2781 | sec_size = symtab_hdr->sh_info; | |
2782 | sec_size *= sizeof (Elf_External_Sym_Shndx); | |
2783 | shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (sec_size); | |
2784 | if (shndx_buf == NULL) | |
2785 | goto error_ret_free_ext_syms; | |
2786 | ||
2787 | if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0 | |
2788 | || bfd_bread ((PTR) shndx_buf, sec_size, input_bfd) != sec_size) | |
2789 | { | |
2790 | free (shndx_buf); | |
2791 | goto error_ret_free_ext_syms; | |
2792 | } | |
2793 | } | |
2794 | ||
edd21aca | 2795 | /* Swap the local symbols in. */ |
9ad5cbcf AM |
2796 | for (esym = ext_syms, end_sy = esym + symtab_hdr->sh_info, |
2797 | isym = local_syms, shndx = shndx_buf; | |
2798 | esym < end_sy; | |
2799 | esym++, isym++, shndx = (shndx ? shndx + 1 : NULL)) | |
2800 | bfd_elf32_swap_symbol_in (input_bfd, esym, shndx, isym); | |
edd21aca AM |
2801 | |
2802 | /* Now we can free the external symbols. */ | |
9ad5cbcf | 2803 | free (shndx_buf); |
edd21aca | 2804 | free (ext_syms); |
edd21aca | 2805 | |
83c81bfe | 2806 | if (info->shared && htab->multi_subspace) |
30667bf3 | 2807 | { |
25f72752 AM |
2808 | struct elf_link_hash_entry **sym_hashes; |
2809 | struct elf_link_hash_entry **end_hashes; | |
30667bf3 AM |
2810 | unsigned int symcount; |
2811 | ||
2812 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2813 | - symtab_hdr->sh_info); | |
25f72752 AM |
2814 | sym_hashes = elf_sym_hashes (input_bfd); |
2815 | end_hashes = sym_hashes + symcount; | |
30667bf3 AM |
2816 | |
2817 | /* Look through the global syms for functions; We need to | |
2818 | build export stubs for all globally visible functions. */ | |
25f72752 | 2819 | for (; sym_hashes < end_hashes; sym_hashes++) |
30667bf3 AM |
2820 | { |
2821 | struct elf32_hppa_link_hash_entry *hash; | |
2822 | ||
25f72752 | 2823 | hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes; |
30667bf3 AM |
2824 | |
2825 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2826 | || hash->elf.root.type == bfd_link_hash_warning) | |
2827 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2828 | hash->elf.root.u.i.link); | |
2829 | ||
2830 | /* At this point in the link, undefined syms have been | |
2831 | resolved, so we need to check that the symbol was | |
2832 | defined in this BFD. */ | |
2833 | if ((hash->elf.root.type == bfd_link_hash_defined | |
2834 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2835 | && hash->elf.type == STT_FUNC | |
2836 | && hash->elf.root.u.def.section->output_section != NULL | |
25f72752 AM |
2837 | && (hash->elf.root.u.def.section->output_section->owner |
2838 | == output_bfd) | |
30667bf3 AM |
2839 | && hash->elf.root.u.def.section->owner == input_bfd |
2840 | && (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
2841 | && !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) | |
2842 | && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT) | |
2843 | { | |
2844 | asection *sec; | |
2845 | const char *stub_name; | |
2846 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2847 | ||
2848 | sec = hash->elf.root.u.def.section; | |
2849 | stub_name = hash->elf.root.root.string; | |
83c81bfe | 2850 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
2851 | stub_name, |
2852 | false, false); | |
2853 | if (stub_entry == NULL) | |
2854 | { | |
83c81bfe | 2855 | stub_entry = hppa_add_stub (stub_name, sec, htab); |
30667bf3 AM |
2856 | if (!stub_entry) |
2857 | goto error_ret_free_local; | |
2858 | ||
2859 | stub_entry->target_value = hash->elf.root.u.def.value; | |
2860 | stub_entry->target_section = hash->elf.root.u.def.section; | |
2861 | stub_entry->stub_type = hppa_stub_export; | |
2862 | stub_entry->h = hash; | |
2863 | stub_changed = 1; | |
2864 | } | |
2865 | else | |
2866 | { | |
2867 | (*_bfd_error_handler) (_("%s: duplicate export stub %s"), | |
8f615d07 AM |
2868 | bfd_archive_filename (input_bfd), |
2869 | stub_name); | |
30667bf3 AM |
2870 | } |
2871 | } | |
2872 | } | |
30667bf3 AM |
2873 | } |
2874 | } | |
edd21aca AM |
2875 | |
2876 | while (1) | |
2877 | { | |
30667bf3 AM |
2878 | asection *stub_sec; |
2879 | ||
25f72752 | 2880 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2881 | input_bfd != NULL; |
25f72752 | 2882 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2883 | { |
2884 | Elf_Internal_Shdr *symtab_hdr; | |
2885 | ||
2886 | /* We'll need the symbol table in a second. */ | |
2887 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2888 | if (symtab_hdr->sh_info == 0) | |
2889 | continue; | |
2890 | ||
25f72752 | 2891 | local_syms = all_local_syms[bfd_indx]; |
30667bf3 AM |
2892 | |
2893 | /* Walk over each section attached to the input bfd. */ | |
2894 | for (section = input_bfd->sections; | |
2895 | section != NULL; | |
25f72752 | 2896 | section = section->next) |
30667bf3 AM |
2897 | { |
2898 | Elf_Internal_Shdr *input_rel_hdr; | |
2899 | Elf32_External_Rela *external_relocs, *erelaend, *erela; | |
2900 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; | |
2901 | ||
2902 | /* If there aren't any relocs, then there's nothing more | |
2903 | to do. */ | |
2904 | if ((section->flags & SEC_RELOC) == 0 | |
2905 | || section->reloc_count == 0) | |
2906 | continue; | |
2907 | ||
25f72752 AM |
2908 | /* If this section is a link-once section that will be |
2909 | discarded, then don't create any stubs. */ | |
2910 | if (section->output_section == NULL | |
2911 | || section->output_section->owner != output_bfd) | |
2912 | continue; | |
2913 | ||
30667bf3 | 2914 | /* Allocate space for the external relocations. */ |
dc810e39 AM |
2915 | amt = section->reloc_count; |
2916 | amt *= sizeof (Elf32_External_Rela); | |
2917 | external_relocs = (Elf32_External_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
2918 | if (external_relocs == NULL) |
2919 | { | |
2920 | goto error_ret_free_local; | |
2921 | } | |
2922 | ||
2923 | /* Likewise for the internal relocations. */ | |
dc810e39 AM |
2924 | amt = section->reloc_count; |
2925 | amt *= sizeof (Elf_Internal_Rela); | |
2926 | internal_relocs = (Elf_Internal_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
2927 | if (internal_relocs == NULL) |
2928 | { | |
2929 | free (external_relocs); | |
2930 | goto error_ret_free_local; | |
2931 | } | |
2932 | ||
2933 | /* Read in the external relocs. */ | |
2934 | input_rel_hdr = &elf_section_data (section)->rel_hdr; | |
2935 | if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0 | |
9ad5cbcf AM |
2936 | || bfd_bread ((PTR) external_relocs, |
2937 | input_rel_hdr->sh_size, | |
2938 | input_bfd) != input_rel_hdr->sh_size) | |
30667bf3 AM |
2939 | { |
2940 | free (external_relocs); | |
2941 | error_ret_free_internal: | |
2942 | free (internal_relocs); | |
2943 | goto error_ret_free_local; | |
2944 | } | |
2945 | ||
2946 | /* Swap in the relocs. */ | |
2947 | erela = external_relocs; | |
2948 | erelaend = erela + section->reloc_count; | |
2949 | irela = internal_relocs; | |
2950 | for (; erela < erelaend; erela++, irela++) | |
2951 | bfd_elf32_swap_reloca_in (input_bfd, erela, irela); | |
2952 | ||
2953 | /* We're done with the external relocs, free them. */ | |
2954 | free (external_relocs); | |
2955 | ||
2956 | /* Now examine each relocation. */ | |
2957 | irela = internal_relocs; | |
2958 | irelaend = irela + section->reloc_count; | |
2959 | for (; irela < irelaend; irela++) | |
2960 | { | |
2961 | unsigned int r_type, r_indx; | |
2962 | enum elf32_hppa_stub_type stub_type; | |
2963 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2964 | asection *sym_sec; | |
2965 | bfd_vma sym_value; | |
2966 | bfd_vma destination; | |
2967 | struct elf32_hppa_link_hash_entry *hash; | |
2968 | char *stub_name; | |
25f72752 | 2969 | const asection *id_sec; |
30667bf3 AM |
2970 | |
2971 | r_type = ELF32_R_TYPE (irela->r_info); | |
2972 | r_indx = ELF32_R_SYM (irela->r_info); | |
2973 | ||
2974 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2975 | { | |
2976 | bfd_set_error (bfd_error_bad_value); | |
2977 | goto error_ret_free_internal; | |
2978 | } | |
2979 | ||
2980 | /* Only look for stubs on call instructions. */ | |
2981 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
2982 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
2983 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
2984 | continue; | |
2985 | ||
2986 | /* Now determine the call target, its name, value, | |
2987 | section. */ | |
2988 | sym_sec = NULL; | |
2989 | sym_value = 0; | |
2990 | destination = 0; | |
2991 | hash = NULL; | |
2992 | if (r_indx < symtab_hdr->sh_info) | |
2993 | { | |
2994 | /* It's a local symbol. */ | |
2995 | Elf_Internal_Sym *sym; | |
2996 | Elf_Internal_Shdr *hdr; | |
2997 | ||
2998 | sym = local_syms + r_indx; | |
2999 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
3000 | sym_sec = hdr->bfd_section; | |
3001 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
3002 | sym_value = sym->st_value; | |
3003 | destination = (sym_value + irela->r_addend | |
3004 | + sym_sec->output_offset | |
3005 | + sym_sec->output_section->vma); | |
3006 | } | |
3007 | else | |
3008 | { | |
3009 | /* It's an external symbol. */ | |
3010 | int e_indx; | |
3011 | ||
3012 | e_indx = r_indx - symtab_hdr->sh_info; | |
3013 | hash = ((struct elf32_hppa_link_hash_entry *) | |
3014 | elf_sym_hashes (input_bfd)[e_indx]); | |
3015 | ||
3016 | while (hash->elf.root.type == bfd_link_hash_indirect | |
3017 | || hash->elf.root.type == bfd_link_hash_warning) | |
3018 | hash = ((struct elf32_hppa_link_hash_entry *) | |
3019 | hash->elf.root.u.i.link); | |
3020 | ||
3021 | if (hash->elf.root.type == bfd_link_hash_defined | |
3022 | || hash->elf.root.type == bfd_link_hash_defweak) | |
3023 | { | |
3024 | sym_sec = hash->elf.root.u.def.section; | |
3025 | sym_value = hash->elf.root.u.def.value; | |
3026 | if (sym_sec->output_section != NULL) | |
3027 | destination = (sym_value + irela->r_addend | |
3028 | + sym_sec->output_offset | |
3029 | + sym_sec->output_section->vma); | |
3030 | } | |
3031 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
3032 | { | |
3033 | if (! info->shared) | |
3034 | continue; | |
3035 | } | |
3036 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
3037 | { | |
3038 | if (! (info->shared | |
3039 | && !info->no_undefined | |
3040 | && (ELF_ST_VISIBILITY (hash->elf.other) | |
2a5aaecb AM |
3041 | == STV_DEFAULT) |
3042 | && hash->elf.type != STT_PARISC_MILLI)) | |
30667bf3 AM |
3043 | continue; |
3044 | } | |
3045 | else | |
3046 | { | |
3047 | bfd_set_error (bfd_error_bad_value); | |
3048 | goto error_ret_free_internal; | |
3049 | } | |
3050 | } | |
3051 | ||
3052 | /* Determine what (if any) linker stub is needed. */ | |
3053 | stub_type = hppa_type_of_stub (section, irela, hash, | |
3054 | destination); | |
3055 | if (stub_type == hppa_stub_none) | |
3056 | continue; | |
3057 | ||
25f72752 | 3058 | /* Support for grouping stub sections. */ |
83c81bfe | 3059 | id_sec = htab->stub_group[section->id].link_sec; |
25f72752 | 3060 | |
30667bf3 | 3061 | /* Get the name of this stub. */ |
25f72752 | 3062 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela); |
30667bf3 AM |
3063 | if (!stub_name) |
3064 | goto error_ret_free_internal; | |
3065 | ||
83c81bfe | 3066 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
3067 | stub_name, |
3068 | false, false); | |
3069 | if (stub_entry != NULL) | |
3070 | { | |
3071 | /* The proper stub has already been created. */ | |
3072 | free (stub_name); | |
3073 | continue; | |
3074 | } | |
3075 | ||
83c81bfe | 3076 | stub_entry = hppa_add_stub (stub_name, section, htab); |
30667bf3 AM |
3077 | if (stub_entry == NULL) |
3078 | { | |
3079 | free (stub_name); | |
3080 | goto error_ret_free_local; | |
3081 | } | |
3082 | ||
3083 | stub_entry->target_value = sym_value; | |
3084 | stub_entry->target_section = sym_sec; | |
3085 | stub_entry->stub_type = stub_type; | |
3086 | if (info->shared) | |
3087 | { | |
3088 | if (stub_type == hppa_stub_import) | |
3089 | stub_entry->stub_type = hppa_stub_import_shared; | |
98ceb8ce | 3090 | else if (stub_type == hppa_stub_long_branch) |
30667bf3 AM |
3091 | stub_entry->stub_type = hppa_stub_long_branch_shared; |
3092 | } | |
3093 | stub_entry->h = hash; | |
3094 | stub_changed = 1; | |
3095 | } | |
3096 | ||
3097 | /* We're done with the internal relocs, free them. */ | |
3098 | free (internal_relocs); | |
3099 | } | |
3100 | } | |
3101 | ||
3102 | if (!stub_changed) | |
3103 | break; | |
3104 | ||
3105 | /* OK, we've added some stubs. Find out the new size of the | |
3106 | stub sections. */ | |
83c81bfe | 3107 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3108 | stub_sec != NULL; |
3109 | stub_sec = stub_sec->next) | |
3110 | { | |
74d1c347 AM |
3111 | stub_sec->_raw_size = 0; |
3112 | stub_sec->_cooked_size = 0; | |
3113 | } | |
74d1c347 | 3114 | |
83c81bfe | 3115 | bfd_hash_traverse (&htab->stub_hash_table, hppa_size_one_stub, htab); |
74d1c347 | 3116 | |
30667bf3 | 3117 | /* Ask the linker to do its stuff. */ |
83c81bfe | 3118 | (*htab->layout_sections_again) (); |
30667bf3 AM |
3119 | stub_changed = 0; |
3120 | } | |
3121 | ||
25f72752 | 3122 | ret = 1; |
30667bf3 AM |
3123 | |
3124 | error_ret_free_local: | |
25f72752 AM |
3125 | while (bfd_count-- > 0) |
3126 | if (all_local_syms[bfd_count]) | |
3127 | free (all_local_syms[bfd_count]); | |
30667bf3 AM |
3128 | free (all_local_syms); |
3129 | ||
25f72752 | 3130 | return ret; |
30667bf3 AM |
3131 | } |
3132 | ||
30667bf3 AM |
3133 | /* For a final link, this function is called after we have sized the |
3134 | stubs to provide a value for __gp. */ | |
3135 | ||
3136 | boolean | |
3137 | elf32_hppa_set_gp (abfd, info) | |
3138 | bfd *abfd; | |
3139 | struct bfd_link_info *info; | |
3140 | { | |
83c81bfe | 3141 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3142 | struct elf_link_hash_entry *h; |
3143 | asection *sec; | |
3144 | bfd_vma gp_val; | |
3145 | ||
83c81bfe | 3146 | htab = hppa_link_hash_table (info); |
ebe50bae | 3147 | h = elf_link_hash_lookup (&htab->elf, "$global$", false, false, false); |
30667bf3 | 3148 | |
df8634e3 AM |
3149 | if (h != NULL |
3150 | && (h->root.type == bfd_link_hash_defined | |
3151 | || h->root.type == bfd_link_hash_defweak)) | |
30667bf3 AM |
3152 | { |
3153 | gp_val = h->root.u.def.value; | |
3154 | sec = h->root.u.def.section; | |
3155 | } | |
3156 | else | |
3157 | { | |
74d1c347 AM |
3158 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
3159 | or .data, if these sections exist. In the case of choosing | |
3160 | .plt try to make the LTP ideal for addressing anywhere in the | |
3161 | .plt or .got with a 14 bit signed offset. Typically, the end | |
3162 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
3163 | if either the .plt or .got is larger than 0x2000. If both | |
3164 | the .plt and .got are smaller than 0x2000, choose the end of | |
3165 | the .plt section. */ | |
3166 | ||
83c81bfe | 3167 | sec = htab->splt; |
74d1c347 | 3168 | if (sec != NULL) |
30667bf3 | 3169 | { |
74d1c347 AM |
3170 | gp_val = sec->_raw_size; |
3171 | if (gp_val > 0x2000 | |
83c81bfe | 3172 | || (htab->sgot && htab->sgot->_raw_size > 0x2000)) |
74d1c347 AM |
3173 | { |
3174 | gp_val = 0x2000; | |
3175 | } | |
3176 | } | |
3177 | else | |
3178 | { | |
3179 | gp_val = 0; | |
83c81bfe | 3180 | sec = htab->sgot; |
74d1c347 AM |
3181 | if (sec != NULL) |
3182 | { | |
3183 | /* We know we don't have a .plt. If .got is large, | |
3184 | offset our LTP. */ | |
3185 | if (sec->_raw_size > 0x2000) | |
3186 | gp_val = 0x2000; | |
3187 | } | |
3188 | else | |
3189 | { | |
3190 | /* No .plt or .got. Who cares what the LTP is? */ | |
3191 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3192 | } | |
30667bf3 | 3193 | } |
df8634e3 AM |
3194 | |
3195 | if (h != NULL) | |
3196 | { | |
3197 | h->root.type = bfd_link_hash_defined; | |
3198 | h->root.u.def.value = gp_val; | |
3199 | if (sec != NULL) | |
3200 | h->root.u.def.section = sec; | |
3201 | else | |
3202 | h->root.u.def.section = bfd_abs_section_ptr; | |
3203 | } | |
30667bf3 AM |
3204 | } |
3205 | ||
b32b5d6e | 3206 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
3207 | gp_val += sec->output_section->vma + sec->output_offset; |
3208 | ||
3209 | elf_gp (abfd) = gp_val; | |
30667bf3 AM |
3210 | return true; |
3211 | } | |
3212 | ||
30667bf3 AM |
3213 | /* Build all the stubs associated with the current output file. The |
3214 | stubs are kept in a hash table attached to the main linker hash | |
3215 | table. We also set up the .plt entries for statically linked PIC | |
3216 | functions here. This function is called via hppaelf_finish in the | |
3217 | linker. */ | |
3218 | ||
3219 | boolean | |
3220 | elf32_hppa_build_stubs (info) | |
3221 | struct bfd_link_info *info; | |
3222 | { | |
3223 | asection *stub_sec; | |
3224 | struct bfd_hash_table *table; | |
83c81bfe | 3225 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3226 | |
83c81bfe | 3227 | htab = hppa_link_hash_table (info); |
30667bf3 | 3228 | |
83c81bfe | 3229 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3230 | stub_sec != NULL; |
3231 | stub_sec = stub_sec->next) | |
3232 | { | |
dc810e39 | 3233 | bfd_size_type size; |
30667bf3 AM |
3234 | |
3235 | /* Allocate memory to hold the linker stubs. */ | |
74d1c347 | 3236 | size = stub_sec->_raw_size; |
83c81bfe | 3237 | stub_sec->contents = (unsigned char *) bfd_zalloc (htab->stub_bfd, size); |
30667bf3 AM |
3238 | if (stub_sec->contents == NULL && size != 0) |
3239 | return false; | |
74d1c347 | 3240 | stub_sec->_raw_size = 0; |
30667bf3 AM |
3241 | } |
3242 | ||
3243 | /* Build the stubs as directed by the stub hash table. */ | |
83c81bfe | 3244 | table = &htab->stub_hash_table; |
30667bf3 AM |
3245 | bfd_hash_traverse (table, hppa_build_one_stub, info); |
3246 | ||
3247 | return true; | |
3248 | } | |
3249 | ||
c46b7515 AM |
3250 | /* Perform a final link. */ |
3251 | ||
3252 | static boolean | |
3253 | elf32_hppa_final_link (abfd, info) | |
3254 | bfd *abfd; | |
3255 | struct bfd_link_info *info; | |
3256 | { | |
3257 | asection *s; | |
3258 | ||
4dc86686 AM |
3259 | /* Invoke the regular ELF linker to do all the work. */ |
3260 | if (!bfd_elf32_bfd_final_link (abfd, info)) | |
c46b7515 AM |
3261 | return false; |
3262 | ||
3263 | /* If we're producing a final executable, sort the contents of the | |
3264 | unwind section. Magic section names, but this is much safer than | |
3265 | having elf32_hppa_relocate_section remember where SEGREL32 relocs | |
3266 | occurred. Consider what happens if someone inept creates a | |
3267 | linker script that puts unwind information in .text. */ | |
3268 | s = bfd_get_section_by_name (abfd, ".PARISC.unwind"); | |
3269 | if (s != NULL) | |
3270 | { | |
3271 | bfd_size_type size; | |
3272 | char *contents; | |
3273 | ||
3274 | size = s->_raw_size; | |
3275 | contents = bfd_malloc (size); | |
3276 | if (contents == NULL) | |
3277 | return false; | |
3278 | ||
3279 | if (! bfd_get_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3280 | return false; | |
3281 | ||
dc810e39 | 3282 | qsort (contents, (size_t) (size / 16), 16, hppa_unwind_entry_compare); |
c46b7515 AM |
3283 | |
3284 | if (! bfd_set_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3285 | return false; | |
3286 | } | |
3287 | return true; | |
3288 | } | |
3289 | ||
3290 | /* Record the lowest address for the data and text segments. */ | |
3291 | ||
3292 | static void | |
3293 | hppa_record_segment_addr (abfd, section, data) | |
3294 | bfd *abfd ATTRIBUTE_UNUSED; | |
3295 | asection *section; | |
3296 | PTR data; | |
3297 | { | |
83c81bfe | 3298 | struct elf32_hppa_link_hash_table *htab; |
c46b7515 | 3299 | |
83c81bfe | 3300 | htab = (struct elf32_hppa_link_hash_table *) data; |
c46b7515 AM |
3301 | |
3302 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3303 | { | |
3304 | bfd_vma value = section->vma - section->filepos; | |
3305 | ||
3306 | if ((section->flags & SEC_READONLY) != 0) | |
3307 | { | |
83c81bfe AM |
3308 | if (value < htab->text_segment_base) |
3309 | htab->text_segment_base = value; | |
c46b7515 AM |
3310 | } |
3311 | else | |
3312 | { | |
83c81bfe AM |
3313 | if (value < htab->data_segment_base) |
3314 | htab->data_segment_base = value; | |
c46b7515 AM |
3315 | } |
3316 | } | |
3317 | } | |
3318 | ||
30667bf3 AM |
3319 | /* Perform a relocation as part of a final link. */ |
3320 | ||
3321 | static bfd_reloc_status_type | |
83c81bfe | 3322 | final_link_relocate (input_section, contents, rel, value, htab, sym_sec, h) |
30667bf3 AM |
3323 | asection *input_section; |
3324 | bfd_byte *contents; | |
3325 | const Elf_Internal_Rela *rel; | |
3326 | bfd_vma value; | |
83c81bfe | 3327 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3328 | asection *sym_sec; |
3329 | struct elf32_hppa_link_hash_entry *h; | |
3330 | { | |
3331 | int insn; | |
3332 | unsigned int r_type = ELF32_R_TYPE (rel->r_info); | |
3333 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; | |
3334 | int r_format = howto->bitsize; | |
3335 | enum hppa_reloc_field_selector_type_alt r_field; | |
3336 | bfd *input_bfd = input_section->owner; | |
3337 | bfd_vma offset = rel->r_offset; | |
3338 | bfd_vma max_branch_offset = 0; | |
3339 | bfd_byte *hit_data = contents + offset; | |
3340 | bfd_signed_vma addend = rel->r_addend; | |
3341 | bfd_vma location; | |
3342 | struct elf32_hppa_stub_hash_entry *stub_entry = NULL; | |
3343 | int val; | |
3344 | ||
3345 | if (r_type == R_PARISC_NONE) | |
3346 | return bfd_reloc_ok; | |
3347 | ||
3348 | insn = bfd_get_32 (input_bfd, hit_data); | |
3349 | ||
3350 | /* Find out where we are and where we're going. */ | |
3351 | location = (offset + | |
3352 | input_section->output_offset + | |
3353 | input_section->output_section->vma); | |
3354 | ||
3355 | switch (r_type) | |
3356 | { | |
3357 | case R_PARISC_PCREL12F: | |
3358 | case R_PARISC_PCREL17F: | |
3359 | case R_PARISC_PCREL22F: | |
3360 | /* If this is a call to a function defined in another dynamic | |
3361 | library, or if it is a call to a PIC function in the same | |
74d1c347 AM |
3362 | object, or if this is a shared link and it is a call to a |
3363 | weak symbol which may or may not be in the same object, then | |
3364 | find the import stub in the stub hash. */ | |
30667bf3 AM |
3365 | if (sym_sec == NULL |
3366 | || sym_sec->output_section == NULL | |
12cca0d2 AM |
3367 | || (h != NULL |
3368 | && ((h->maybe_pic_call | |
3369 | && !(input_section->flags & SEC_HAS_GOT_REF)) | |
3370 | || (h->elf.root.type == bfd_link_hash_defweak | |
3371 | && h->elf.dynindx != -1 | |
3372 | && h->elf.plt.offset != (bfd_vma) -1)))) | |
30667bf3 AM |
3373 | { |
3374 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3375 | h, rel, htab); |
30667bf3 AM |
3376 | if (stub_entry != NULL) |
3377 | { | |
3378 | value = (stub_entry->stub_offset | |
3379 | + stub_entry->stub_sec->output_offset | |
3380 | + stub_entry->stub_sec->output_section->vma); | |
3381 | addend = 0; | |
3382 | } | |
3383 | else if (sym_sec == NULL && h != NULL | |
3384 | && h->elf.root.type == bfd_link_hash_undefweak) | |
3385 | { | |
db20fd76 AM |
3386 | /* It's OK if undefined weak. Calls to undefined weak |
3387 | symbols behave as if the "called" function | |
3388 | immediately returns. We can thus call to a weak | |
3389 | function without first checking whether the function | |
3390 | is defined. */ | |
30667bf3 | 3391 | value = location; |
db20fd76 | 3392 | addend = 8; |
30667bf3 AM |
3393 | } |
3394 | else | |
f09ebc7d | 3395 | return bfd_reloc_undefined; |
30667bf3 AM |
3396 | } |
3397 | /* Fall thru. */ | |
3398 | ||
3399 | case R_PARISC_PCREL21L: | |
3400 | case R_PARISC_PCREL17C: | |
3401 | case R_PARISC_PCREL17R: | |
3402 | case R_PARISC_PCREL14R: | |
3403 | case R_PARISC_PCREL14F: | |
3404 | /* Make it a pc relative offset. */ | |
3405 | value -= location; | |
3406 | addend -= 8; | |
3407 | break; | |
3408 | ||
3409 | case R_PARISC_DPREL21L: | |
3410 | case R_PARISC_DPREL14R: | |
3411 | case R_PARISC_DPREL14F: | |
3412 | /* For all the DP relative relocations, we need to examine the symbol's | |
3413 | section. If it's a code section, then "data pointer relative" makes | |
3414 | no sense. In that case we don't adjust the "value", and for 21 bit | |
3415 | addil instructions, we change the source addend register from %dp to | |
3416 | %r0. This situation commonly arises when a variable's "constness" | |
3417 | is declared differently from the way the variable is defined. For | |
3418 | instance: "extern int foo" with foo defined as "const int foo". */ | |
3419 | if (sym_sec == NULL) | |
3420 | break; | |
3421 | if ((sym_sec->flags & SEC_CODE) != 0) | |
3422 | { | |
3423 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3424 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3425 | { | |
3426 | insn &= ~ (0x1f << 21); | |
74d1c347 | 3427 | #if 1 /* debug them. */ |
30667bf3 AM |
3428 | (*_bfd_error_handler) |
3429 | (_("%s(%s+0x%lx): fixing %s"), | |
8f615d07 | 3430 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3431 | input_section->name, |
3432 | (long) rel->r_offset, | |
3433 | howto->name); | |
3434 | #endif | |
3435 | } | |
3436 | /* Now try to make things easy for the dynamic linker. */ | |
3437 | ||
3438 | break; | |
3439 | } | |
74d1c347 | 3440 | /* Fall thru. */ |
30667bf3 AM |
3441 | |
3442 | case R_PARISC_DLTIND21L: | |
3443 | case R_PARISC_DLTIND14R: | |
3444 | case R_PARISC_DLTIND14F: | |
3445 | value -= elf_gp (input_section->output_section->owner); | |
3446 | break; | |
3447 | ||
c46b7515 AM |
3448 | case R_PARISC_SEGREL32: |
3449 | if ((sym_sec->flags & SEC_CODE) != 0) | |
83c81bfe | 3450 | value -= htab->text_segment_base; |
c46b7515 | 3451 | else |
83c81bfe | 3452 | value -= htab->data_segment_base; |
c46b7515 AM |
3453 | break; |
3454 | ||
30667bf3 AM |
3455 | default: |
3456 | break; | |
3457 | } | |
3458 | ||
3459 | switch (r_type) | |
3460 | { | |
3461 | case R_PARISC_DIR32: | |
47d89dba | 3462 | case R_PARISC_DIR14F: |
30667bf3 AM |
3463 | case R_PARISC_DIR17F: |
3464 | case R_PARISC_PCREL17C: | |
3465 | case R_PARISC_PCREL14F: | |
3466 | case R_PARISC_DPREL14F: | |
3467 | case R_PARISC_PLABEL32: | |
3468 | case R_PARISC_DLTIND14F: | |
3469 | case R_PARISC_SEGBASE: | |
3470 | case R_PARISC_SEGREL32: | |
3471 | r_field = e_fsel; | |
3472 | break; | |
3473 | ||
1bf42538 | 3474 | case R_PARISC_DLTIND21L: |
30667bf3 | 3475 | case R_PARISC_PCREL21L: |
30667bf3 | 3476 | case R_PARISC_PLABEL21L: |
1bf42538 JL |
3477 | r_field = e_lsel; |
3478 | break; | |
3479 | ||
3480 | case R_PARISC_DIR21L: | |
3481 | case R_PARISC_DPREL21L: | |
30667bf3 AM |
3482 | r_field = e_lrsel; |
3483 | break; | |
3484 | ||
30667bf3 | 3485 | case R_PARISC_PCREL17R: |
30667bf3 | 3486 | case R_PARISC_PCREL14R: |
30667bf3 AM |
3487 | case R_PARISC_PLABEL14R: |
3488 | case R_PARISC_DLTIND14R: | |
1bf42538 JL |
3489 | r_field = e_rsel; |
3490 | break; | |
3491 | ||
3492 | case R_PARISC_DIR17R: | |
3493 | case R_PARISC_DIR14R: | |
3494 | case R_PARISC_DPREL14R: | |
30667bf3 AM |
3495 | r_field = e_rrsel; |
3496 | break; | |
3497 | ||
3498 | case R_PARISC_PCREL12F: | |
3499 | case R_PARISC_PCREL17F: | |
3500 | case R_PARISC_PCREL22F: | |
3501 | r_field = e_fsel; | |
3502 | ||
3503 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3504 | { | |
3505 | max_branch_offset = (1 << (17-1)) << 2; | |
3506 | } | |
3507 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3508 | { | |
3509 | max_branch_offset = (1 << (12-1)) << 2; | |
3510 | } | |
3511 | else | |
3512 | { | |
3513 | max_branch_offset = (1 << (22-1)) << 2; | |
3514 | } | |
3515 | ||
3516 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3517 | undefined syms. We've already checked for a stub for the | |
3518 | shared undefined case. */ | |
3519 | if (sym_sec == NULL) | |
3520 | break; | |
3521 | ||
3522 | /* If the branch is out of reach, then redirect the | |
3523 | call to the local stub for this function. */ | |
3524 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3525 | { | |
3526 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3527 | h, rel, htab); |
30667bf3 | 3528 | if (stub_entry == NULL) |
f09ebc7d | 3529 | return bfd_reloc_undefined; |
30667bf3 AM |
3530 | |
3531 | /* Munge up the value and addend so that we call the stub | |
3532 | rather than the procedure directly. */ | |
3533 | value = (stub_entry->stub_offset | |
3534 | + stub_entry->stub_sec->output_offset | |
3535 | + stub_entry->stub_sec->output_section->vma | |
3536 | - location); | |
3537 | addend = -8; | |
3538 | } | |
3539 | break; | |
3540 | ||
3541 | /* Something we don't know how to handle. */ | |
3542 | default: | |
3543 | return bfd_reloc_notsupported; | |
3544 | } | |
3545 | ||
3546 | /* Make sure we can reach the stub. */ | |
3547 | if (max_branch_offset != 0 | |
3548 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3549 | { | |
3550 | (*_bfd_error_handler) | |
3551 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), | |
8f615d07 | 3552 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3553 | input_section->name, |
3554 | (long) rel->r_offset, | |
3555 | stub_entry->root.string); | |
ce757d15 | 3556 | bfd_set_error (bfd_error_bad_value); |
30667bf3 AM |
3557 | return bfd_reloc_notsupported; |
3558 | } | |
3559 | ||
3560 | val = hppa_field_adjust (value, addend, r_field); | |
3561 | ||
3562 | switch (r_type) | |
3563 | { | |
3564 | case R_PARISC_PCREL12F: | |
3565 | case R_PARISC_PCREL17C: | |
3566 | case R_PARISC_PCREL17F: | |
3567 | case R_PARISC_PCREL17R: | |
3568 | case R_PARISC_PCREL22F: | |
3569 | case R_PARISC_DIR17F: | |
3570 | case R_PARISC_DIR17R: | |
3571 | /* This is a branch. Divide the offset by four. | |
3572 | Note that we need to decide whether it's a branch or | |
3573 | otherwise by inspecting the reloc. Inspecting insn won't | |
3574 | work as insn might be from a .word directive. */ | |
3575 | val >>= 2; | |
3576 | break; | |
3577 | ||
3578 | default: | |
3579 | break; | |
3580 | } | |
3581 | ||
3582 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3583 | ||
3584 | /* Update the instruction word. */ | |
74d1c347 | 3585 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3586 | return bfd_reloc_ok; |
3587 | } | |
3588 | ||
30667bf3 AM |
3589 | /* Relocate an HPPA ELF section. */ |
3590 | ||
3591 | static boolean | |
3592 | elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section, | |
3593 | contents, relocs, local_syms, local_sections) | |
3594 | bfd *output_bfd; | |
3595 | struct bfd_link_info *info; | |
3596 | bfd *input_bfd; | |
3597 | asection *input_section; | |
3598 | bfd_byte *contents; | |
3599 | Elf_Internal_Rela *relocs; | |
3600 | Elf_Internal_Sym *local_syms; | |
3601 | asection **local_sections; | |
3602 | { | |
30667bf3 | 3603 | bfd_vma *local_got_offsets; |
83c81bfe | 3604 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3605 | Elf_Internal_Shdr *symtab_hdr; |
3606 | Elf_Internal_Rela *rel; | |
3607 | Elf_Internal_Rela *relend; | |
30667bf3 AM |
3608 | |
3609 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3610 | ||
83c81bfe | 3611 | htab = hppa_link_hash_table (info); |
74d1c347 | 3612 | local_got_offsets = elf_local_got_offsets (input_bfd); |
30667bf3 AM |
3613 | |
3614 | rel = relocs; | |
3615 | relend = relocs + input_section->reloc_count; | |
3616 | for (; rel < relend; rel++) | |
3617 | { | |
3618 | unsigned int r_type; | |
3619 | reloc_howto_type *howto; | |
3620 | unsigned int r_symndx; | |
3621 | struct elf32_hppa_link_hash_entry *h; | |
3622 | Elf_Internal_Sym *sym; | |
3623 | asection *sym_sec; | |
3624 | bfd_vma relocation; | |
3625 | bfd_reloc_status_type r; | |
3626 | const char *sym_name; | |
74d1c347 | 3627 | boolean plabel; |
f09ebc7d | 3628 | boolean warned_undef; |
30667bf3 AM |
3629 | |
3630 | r_type = ELF32_R_TYPE (rel->r_info); | |
3631 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3632 | { | |
3633 | bfd_set_error (bfd_error_bad_value); | |
3634 | return false; | |
3635 | } | |
3636 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3637 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3638 | continue; | |
3639 | ||
3640 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3641 | ||
3642 | if (info->relocateable) | |
3643 | { | |
3ac8354b | 3644 | /* This is a relocatable link. We don't have to change |
30667bf3 AM |
3645 | anything, unless the reloc is against a section symbol, |
3646 | in which case we have to adjust according to where the | |
3647 | section symbol winds up in the output section. */ | |
3648 | if (r_symndx < symtab_hdr->sh_info) | |
3649 | { | |
3650 | sym = local_syms + r_symndx; | |
3651 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3652 | { | |
3653 | sym_sec = local_sections[r_symndx]; | |
3654 | rel->r_addend += sym_sec->output_offset; | |
3655 | } | |
3656 | } | |
3657 | continue; | |
3658 | } | |
3659 | ||
3660 | /* This is a final link. */ | |
3661 | h = NULL; | |
3662 | sym = NULL; | |
3663 | sym_sec = NULL; | |
f09ebc7d | 3664 | warned_undef = false; |
30667bf3 AM |
3665 | if (r_symndx < symtab_hdr->sh_info) |
3666 | { | |
3667 | /* This is a local symbol, h defaults to NULL. */ | |
3668 | sym = local_syms + r_symndx; | |
3669 | sym_sec = local_sections[r_symndx]; | |
f8df10f4 | 3670 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sym_sec, rel); |
30667bf3 AM |
3671 | } |
3672 | else | |
3673 | { | |
3674 | int indx; | |
3675 | ||
3676 | /* It's a global; Find its entry in the link hash. */ | |
3677 | indx = r_symndx - symtab_hdr->sh_info; | |
3678 | h = ((struct elf32_hppa_link_hash_entry *) | |
3679 | elf_sym_hashes (input_bfd)[indx]); | |
3680 | while (h->elf.root.type == bfd_link_hash_indirect | |
3681 | || h->elf.root.type == bfd_link_hash_warning) | |
3682 | h = (struct elf32_hppa_link_hash_entry *) h->elf.root.u.i.link; | |
3683 | ||
3684 | relocation = 0; | |
3685 | if (h->elf.root.type == bfd_link_hash_defined | |
3686 | || h->elf.root.type == bfd_link_hash_defweak) | |
3687 | { | |
3688 | sym_sec = h->elf.root.u.def.section; | |
3689 | /* If sym_sec->output_section is NULL, then it's a | |
3690 | symbol defined in a shared library. */ | |
3691 | if (sym_sec->output_section != NULL) | |
3692 | relocation = (h->elf.root.u.def.value | |
3693 | + sym_sec->output_offset | |
3694 | + sym_sec->output_section->vma); | |
3695 | } | |
3696 | else if (h->elf.root.type == bfd_link_hash_undefweak) | |
3697 | ; | |
3698 | else if (info->shared && !info->no_undefined | |
49e9d0d3 AM |
3699 | && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
3700 | && h->elf.type != STT_PARISC_MILLI) | |
30667bf3 | 3701 | { |
671bae9c | 3702 | if (info->symbolic && !info->allow_shlib_undefined) |
f09ebc7d AM |
3703 | { |
3704 | if (!((*info->callbacks->undefined_symbol) | |
3705 | (info, h->elf.root.root.string, input_bfd, | |
3706 | input_section, rel->r_offset, false))) | |
3707 | return false; | |
3708 | warned_undef = true; | |
3709 | } | |
30667bf3 AM |
3710 | } |
3711 | else | |
3712 | { | |
3713 | if (!((*info->callbacks->undefined_symbol) | |
3714 | (info, h->elf.root.root.string, input_bfd, | |
3715 | input_section, rel->r_offset, true))) | |
3716 | return false; | |
f09ebc7d | 3717 | warned_undef = true; |
30667bf3 AM |
3718 | } |
3719 | } | |
3720 | ||
3721 | /* Do any required modifications to the relocation value, and | |
25f72752 AM |
3722 | determine what types of dynamic info we need to output, if |
3723 | any. */ | |
74d1c347 | 3724 | plabel = 0; |
30667bf3 AM |
3725 | switch (r_type) |
3726 | { | |
3727 | case R_PARISC_DLTIND14F: | |
3728 | case R_PARISC_DLTIND14R: | |
3729 | case R_PARISC_DLTIND21L: | |
ce757d15 AM |
3730 | { |
3731 | bfd_vma off; | |
3732 | boolean do_got = 0; | |
3733 | ||
3734 | /* Relocation is to the entry for this symbol in the | |
3735 | global offset table. */ | |
3736 | if (h != NULL) | |
3737 | { | |
3738 | boolean dyn; | |
3739 | ||
3740 | off = h->elf.got.offset; | |
3741 | dyn = htab->elf.dynamic_sections_created; | |
3742 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf)) | |
3743 | { | |
3744 | /* If we aren't going to call finish_dynamic_symbol, | |
3745 | then we need to handle initialisation of the .got | |
3746 | entry and create needed relocs here. Since the | |
3747 | offset must always be a multiple of 4, we use the | |
3748 | least significant bit to record whether we have | |
3749 | initialised it already. */ | |
3750 | if ((off & 1) != 0) | |
3751 | off &= ~1; | |
3752 | else | |
3753 | { | |
3754 | h->elf.got.offset |= 1; | |
3755 | do_got = 1; | |
3756 | } | |
3757 | } | |
3758 | } | |
3759 | else | |
3760 | { | |
3761 | /* Local symbol case. */ | |
3762 | if (local_got_offsets == NULL) | |
3763 | abort (); | |
3764 | ||
3765 | off = local_got_offsets[r_symndx]; | |
3766 | ||
3767 | /* The offset must always be a multiple of 4. We use | |
3768 | the least significant bit to record whether we have | |
3769 | already generated the necessary reloc. */ | |
3770 | if ((off & 1) != 0) | |
3771 | off &= ~1; | |
3772 | else | |
3773 | { | |
3774 | local_got_offsets[r_symndx] |= 1; | |
3775 | do_got = 1; | |
3776 | } | |
3777 | } | |
68fb2e56 | 3778 | |
ce757d15 AM |
3779 | if (do_got) |
3780 | { | |
3781 | if (info->shared) | |
3782 | { | |
3783 | /* Output a dynamic relocation for this GOT entry. | |
3784 | In this case it is relative to the base of the | |
3785 | object because the symbol index is zero. */ | |
3786 | Elf_Internal_Rela outrel; | |
3787 | asection *srelgot = htab->srelgot; | |
3788 | Elf32_External_Rela *loc; | |
3789 | ||
3790 | outrel.r_offset = (off | |
3791 | + htab->sgot->output_offset | |
3792 | + htab->sgot->output_section->vma); | |
3793 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); | |
3794 | outrel.r_addend = relocation; | |
3795 | loc = (Elf32_External_Rela *) srelgot->contents; | |
3796 | loc += srelgot->reloc_count++; | |
3797 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3798 | } | |
3799 | else | |
30667bf3 | 3800 | bfd_put_32 (output_bfd, relocation, |
83c81bfe | 3801 | htab->sgot->contents + off); |
ce757d15 | 3802 | } |
30667bf3 | 3803 | |
ce757d15 AM |
3804 | if (off >= (bfd_vma) -2) |
3805 | abort (); | |
30667bf3 | 3806 | |
ce757d15 AM |
3807 | /* Add the base of the GOT to the relocation value. */ |
3808 | relocation = (off | |
3809 | + htab->sgot->output_offset | |
3810 | + htab->sgot->output_section->vma); | |
3811 | } | |
30667bf3 | 3812 | break; |
252b5132 | 3813 | |
c46b7515 AM |
3814 | case R_PARISC_SEGREL32: |
3815 | /* If this is the first SEGREL relocation, then initialize | |
3816 | the segment base values. */ | |
83c81bfe AM |
3817 | if (htab->text_segment_base == (bfd_vma) -1) |
3818 | bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); | |
c46b7515 AM |
3819 | break; |
3820 | ||
30667bf3 AM |
3821 | case R_PARISC_PLABEL14R: |
3822 | case R_PARISC_PLABEL21L: | |
3823 | case R_PARISC_PLABEL32: | |
ebe50bae | 3824 | if (htab->elf.dynamic_sections_created) |
252b5132 | 3825 | { |
ce757d15 AM |
3826 | bfd_vma off; |
3827 | boolean do_plt = 0; | |
3828 | ||
74d1c347 AM |
3829 | /* If we have a global symbol with a PLT slot, then |
3830 | redirect this relocation to it. */ | |
3831 | if (h != NULL) | |
3832 | { | |
3833 | off = h->elf.plt.offset; | |
4dc86686 | 3834 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, &h->elf)) |
8dea1268 AM |
3835 | { |
3836 | /* In a non-shared link, adjust_dynamic_symbols | |
3837 | isn't called for symbols forced local. We | |
dc810e39 | 3838 | need to write out the plt entry here. */ |
8dea1268 AM |
3839 | if ((off & 1) != 0) |
3840 | off &= ~1; | |
3841 | else | |
3842 | { | |
8dea1268 | 3843 | h->elf.plt.offset |= 1; |
ce757d15 | 3844 | do_plt = 1; |
8dea1268 AM |
3845 | } |
3846 | } | |
74d1c347 AM |
3847 | } |
3848 | else | |
3849 | { | |
68fb2e56 AM |
3850 | bfd_vma *local_plt_offsets; |
3851 | ||
3852 | if (local_got_offsets == NULL) | |
3853 | abort (); | |
74d1c347 | 3854 | |
68fb2e56 AM |
3855 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3856 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3857 | |
3858 | /* As for the local .got entry case, we use the last | |
3859 | bit to record whether we've already initialised | |
3860 | this local .plt entry. */ | |
3861 | if ((off & 1) != 0) | |
3862 | off &= ~1; | |
ce757d15 AM |
3863 | else |
3864 | { | |
3865 | local_plt_offsets[r_symndx] |= 1; | |
3866 | do_plt = 1; | |
3867 | } | |
3868 | } | |
3869 | ||
3870 | if (do_plt) | |
3871 | { | |
3872 | if (info->shared) | |
3873 | { | |
3874 | /* Output a dynamic IPLT relocation for this | |
3875 | PLT entry. */ | |
3876 | Elf_Internal_Rela outrel; | |
3877 | asection *srelplt = htab->srelplt; | |
3878 | Elf32_External_Rela *loc; | |
3879 | ||
3880 | outrel.r_offset = (off | |
3881 | + htab->splt->output_offset | |
3882 | + htab->splt->output_section->vma); | |
3883 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3884 | outrel.r_addend = relocation; | |
3885 | loc = (Elf32_External_Rela *) srelplt->contents; | |
3886 | loc += srelplt->reloc_count++; | |
3887 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3888 | } | |
74d1c347 AM |
3889 | else |
3890 | { | |
3891 | bfd_put_32 (output_bfd, | |
3892 | relocation, | |
83c81bfe | 3893 | htab->splt->contents + off); |
74d1c347 | 3894 | bfd_put_32 (output_bfd, |
83c81bfe AM |
3895 | elf_gp (htab->splt->output_section->owner), |
3896 | htab->splt->contents + off + 4); | |
74d1c347 AM |
3897 | } |
3898 | } | |
3899 | ||
68fb2e56 | 3900 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3901 | abort (); |
74d1c347 AM |
3902 | |
3903 | /* PLABELs contain function pointers. Relocation is to | |
3904 | the entry for the function in the .plt. The magic +2 | |
3905 | offset signals to $$dyncall that the function pointer | |
3906 | is in the .plt and thus has a gp pointer too. | |
3907 | Exception: Undefined PLABELs should have a value of | |
3908 | zero. */ | |
3909 | if (h == NULL | |
3910 | || (h->elf.root.type != bfd_link_hash_undefweak | |
3911 | && h->elf.root.type != bfd_link_hash_undefined)) | |
3912 | { | |
3913 | relocation = (off | |
83c81bfe AM |
3914 | + htab->splt->output_offset |
3915 | + htab->splt->output_section->vma | |
74d1c347 AM |
3916 | + 2); |
3917 | } | |
3918 | plabel = 1; | |
30667bf3 AM |
3919 | } |
3920 | /* Fall through and possibly emit a dynamic relocation. */ | |
3921 | ||
3922 | case R_PARISC_DIR17F: | |
3923 | case R_PARISC_DIR17R: | |
47d89dba | 3924 | case R_PARISC_DIR14F: |
30667bf3 AM |
3925 | case R_PARISC_DIR14R: |
3926 | case R_PARISC_DIR21L: | |
3927 | case R_PARISC_DPREL14F: | |
3928 | case R_PARISC_DPREL14R: | |
3929 | case R_PARISC_DPREL21L: | |
3930 | case R_PARISC_DIR32: | |
ec338859 AM |
3931 | /* r_symndx will be zero only for relocs against symbols |
3932 | from removed linkonce sections, or sections discarded by | |
3933 | a linker script. */ | |
3934 | if (r_symndx == 0 | |
3935 | || (input_section->flags & SEC_ALLOC) == 0) | |
3936 | break; | |
3937 | ||
30667bf3 | 3938 | /* The reloc types handled here and this conditional |
56882138 | 3939 | expression must match the code in ..check_relocs and |
ec338859 | 3940 | allocate_dynrelocs. ie. We need exactly the same condition |
56882138 AM |
3941 | as in ..check_relocs, with some extra conditions (dynindx |
3942 | test in this case) to cater for relocs removed by | |
ec338859 | 3943 | allocate_dynrelocs. If you squint, the non-shared test |
56882138 AM |
3944 | here does indeed match the one in ..check_relocs, the |
3945 | difference being that here we test DEF_DYNAMIC as well as | |
3946 | !DEF_REGULAR. All common syms end up with !DEF_REGULAR, | |
3947 | which is why we can't use just that test here. | |
3948 | Conversely, DEF_DYNAMIC can't be used in check_relocs as | |
3949 | there all files have not been loaded. */ | |
446f2863 | 3950 | if ((info->shared |
446f2863 AM |
3951 | && (IS_ABSOLUTE_RELOC (r_type) |
3952 | || (h != NULL | |
3953 | && h->elf.dynindx != -1 | |
3954 | && (!info->symbolic | |
3955 | || (h->elf.elf_link_hash_flags | |
3956 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
3957 | || (!info->shared | |
446f2863 AM |
3958 | && h != NULL |
3959 | && h->elf.dynindx != -1 | |
3960 | && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
56882138 AM |
3961 | && (((h->elf.elf_link_hash_flags |
3962 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
3963 | && (h->elf.elf_link_hash_flags | |
3964 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
446f2863 AM |
3965 | || h->elf.root.type == bfd_link_hash_undefweak |
3966 | || h->elf.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
3967 | { |
3968 | Elf_Internal_Rela outrel; | |
3969 | boolean skip; | |
98ceb8ce AM |
3970 | asection *sreloc; |
3971 | Elf32_External_Rela *loc; | |
252b5132 | 3972 | |
30667bf3 AM |
3973 | /* When generating a shared object, these relocations |
3974 | are copied into the output file to be resolved at run | |
3975 | time. */ | |
252b5132 | 3976 | |
30667bf3 | 3977 | outrel.r_addend = rel->r_addend; |
c629eae0 JJ |
3978 | outrel.r_offset = |
3979 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
3980 | rel->r_offset); | |
0bb2d96a JJ |
3981 | skip = (outrel.r_offset == (bfd_vma) -1 |
3982 | || outrel.r_offset == (bfd_vma) -2); | |
30667bf3 AM |
3983 | outrel.r_offset += (input_section->output_offset |
3984 | + input_section->output_section->vma); | |
3985 | ||
3986 | if (skip) | |
252b5132 | 3987 | { |
30667bf3 | 3988 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 3989 | } |
74d1c347 AM |
3990 | else if (h != NULL |
3991 | && h->elf.dynindx != -1 | |
3992 | && (plabel | |
446f2863 AM |
3993 | || !IS_ABSOLUTE_RELOC (r_type) |
3994 | || !info->shared | |
74d1c347 | 3995 | || !info->symbolic |
30667bf3 AM |
3996 | || (h->elf.elf_link_hash_flags |
3997 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
252b5132 | 3998 | { |
30667bf3 AM |
3999 | outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type); |
4000 | } | |
4001 | else /* It's a local symbol, or one marked to become local. */ | |
4002 | { | |
4003 | int indx = 0; | |
edd21aca | 4004 | |
30667bf3 AM |
4005 | /* Add the absolute offset of the symbol. */ |
4006 | outrel.r_addend += relocation; | |
edd21aca | 4007 | |
74d1c347 AM |
4008 | /* Global plabels need to be processed by the |
4009 | dynamic linker so that functions have at most one | |
4010 | fptr. For this reason, we need to differentiate | |
4011 | between global and local plabels, which we do by | |
4012 | providing the function symbol for a global plabel | |
4013 | reloc, and no symbol for local plabels. */ | |
4014 | if (! plabel | |
4015 | && sym_sec != NULL | |
30667bf3 AM |
4016 | && sym_sec->output_section != NULL |
4017 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 4018 | { |
30667bf3 AM |
4019 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
4020 | /* We are turning this relocation into one | |
4021 | against a section symbol, so subtract out the | |
4022 | output section's address but not the offset | |
4023 | of the input section in the output section. */ | |
4024 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 4025 | } |
252b5132 | 4026 | |
30667bf3 AM |
4027 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
4028 | } | |
68fb2e56 AM |
4029 | #if 0 |
4030 | /* EH info can cause unaligned DIR32 relocs. | |
4031 | Tweak the reloc type for the dynamic linker. */ | |
4032 | if (r_type == R_PARISC_DIR32 && (outrel.r_offset & 3) != 0) | |
4033 | outrel.r_info = ELF32_R_INFO (ELF32_R_SYM (outrel.r_info), | |
4034 | R_PARISC_DIR32U); | |
4035 | #endif | |
98ceb8ce AM |
4036 | sreloc = elf_section_data (input_section)->sreloc; |
4037 | if (sreloc == NULL) | |
4038 | abort (); | |
4039 | ||
3ac8354b AM |
4040 | loc = (Elf32_External_Rela *) sreloc->contents; |
4041 | loc += sreloc->reloc_count++; | |
98ceb8ce | 4042 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
30667bf3 AM |
4043 | } |
4044 | break; | |
edd21aca | 4045 | |
30667bf3 AM |
4046 | default: |
4047 | break; | |
4048 | } | |
252b5132 | 4049 | |
30667bf3 | 4050 | r = final_link_relocate (input_section, contents, rel, relocation, |
83c81bfe | 4051 | htab, sym_sec, h); |
252b5132 | 4052 | |
30667bf3 AM |
4053 | if (r == bfd_reloc_ok) |
4054 | continue; | |
252b5132 | 4055 | |
30667bf3 AM |
4056 | if (h != NULL) |
4057 | sym_name = h->elf.root.root.string; | |
4058 | else | |
4059 | { | |
4060 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
4061 | symtab_hdr->sh_link, | |
4062 | sym->st_name); | |
4063 | if (sym_name == NULL) | |
4064 | return false; | |
4065 | if (*sym_name == '\0') | |
4066 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
4067 | } | |
edd21aca | 4068 | |
30667bf3 | 4069 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 4070 | |
30667bf3 AM |
4071 | if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported) |
4072 | { | |
f09ebc7d AM |
4073 | if (r == bfd_reloc_notsupported || !warned_undef) |
4074 | { | |
4075 | (*_bfd_error_handler) | |
4076 | (_("%s(%s+0x%lx): cannot handle %s for %s"), | |
4077 | bfd_archive_filename (input_bfd), | |
4078 | input_section->name, | |
4079 | (long) rel->r_offset, | |
4080 | howto->name, | |
4081 | sym_name); | |
4082 | bfd_set_error (bfd_error_bad_value); | |
4083 | return false; | |
4084 | } | |
30667bf3 AM |
4085 | } |
4086 | else | |
4087 | { | |
4088 | if (!((*info->callbacks->reloc_overflow) | |
4089 | (info, sym_name, howto->name, (bfd_vma) 0, | |
4090 | input_bfd, input_section, rel->r_offset))) | |
4091 | return false; | |
4092 | } | |
4093 | } | |
edd21aca | 4094 | |
30667bf3 AM |
4095 | return true; |
4096 | } | |
252b5132 | 4097 | |
c46b7515 AM |
4098 | /* Comparison function for qsort to sort unwind section during a |
4099 | final link. */ | |
4100 | ||
4101 | static int | |
4102 | hppa_unwind_entry_compare (a, b) | |
4103 | const PTR a; | |
4104 | const PTR b; | |
4105 | { | |
4106 | const bfd_byte *ap, *bp; | |
4107 | unsigned long av, bv; | |
4108 | ||
4109 | ap = (const bfd_byte *) a; | |
4110 | av = (unsigned long) ap[0] << 24; | |
4111 | av |= (unsigned long) ap[1] << 16; | |
4112 | av |= (unsigned long) ap[2] << 8; | |
4113 | av |= (unsigned long) ap[3]; | |
4114 | ||
4115 | bp = (const bfd_byte *) b; | |
4116 | bv = (unsigned long) bp[0] << 24; | |
4117 | bv |= (unsigned long) bp[1] << 16; | |
4118 | bv |= (unsigned long) bp[2] << 8; | |
4119 | bv |= (unsigned long) bp[3]; | |
4120 | ||
4121 | return av < bv ? -1 : av > bv ? 1 : 0; | |
4122 | } | |
4123 | ||
30667bf3 AM |
4124 | /* Finish up dynamic symbol handling. We set the contents of various |
4125 | dynamic sections here. */ | |
252b5132 | 4126 | |
30667bf3 AM |
4127 | static boolean |
4128 | elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym) | |
4129 | bfd *output_bfd; | |
4130 | struct bfd_link_info *info; | |
4131 | struct elf_link_hash_entry *h; | |
4132 | Elf_Internal_Sym *sym; | |
4133 | { | |
83c81bfe | 4134 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 4135 | |
83c81bfe | 4136 | htab = hppa_link_hash_table (info); |
30667bf3 | 4137 | |
30667bf3 AM |
4138 | if (h->plt.offset != (bfd_vma) -1) |
4139 | { | |
4140 | bfd_vma value; | |
30667bf3 | 4141 | |
8dea1268 AM |
4142 | if (h->plt.offset & 1) |
4143 | abort (); | |
4144 | ||
30667bf3 AM |
4145 | /* This symbol has an entry in the procedure linkage table. Set |
4146 | it up. | |
4147 | ||
4148 | The format of a plt entry is | |
74d1c347 AM |
4149 | <funcaddr> |
4150 | <__gp> | |
47d89dba | 4151 | */ |
30667bf3 AM |
4152 | value = 0; |
4153 | if (h->root.type == bfd_link_hash_defined | |
4154 | || h->root.type == bfd_link_hash_defweak) | |
4155 | { | |
4156 | value = h->root.u.def.value; | |
4157 | if (h->root.u.def.section->output_section != NULL) | |
4158 | value += (h->root.u.def.section->output_offset | |
4159 | + h->root.u.def.section->output_section->vma); | |
252b5132 | 4160 | } |
edd21aca | 4161 | |
74d1c347 | 4162 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call) |
30667bf3 | 4163 | { |
47d89dba | 4164 | Elf_Internal_Rela rel; |
3ac8354b | 4165 | Elf32_External_Rela *loc; |
47d89dba | 4166 | |
30667bf3 AM |
4167 | /* Create a dynamic IPLT relocation for this entry. */ |
4168 | rel.r_offset = (h->plt.offset | |
83c81bfe AM |
4169 | + htab->splt->output_offset |
4170 | + htab->splt->output_section->vma); | |
ce757d15 | 4171 | if (h->dynindx != -1) |
74d1c347 AM |
4172 | { |
4173 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT); | |
4174 | rel.r_addend = 0; | |
4175 | } | |
4176 | else | |
4177 | { | |
4178 | /* This symbol has been marked to become local, and is | |
4179 | used by a plabel so must be kept in the .plt. */ | |
4180 | rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
4181 | rel.r_addend = value; | |
4182 | } | |
30667bf3 | 4183 | |
3ac8354b AM |
4184 | loc = (Elf32_External_Rela *) htab->srelplt->contents; |
4185 | loc += htab->srelplt->reloc_count++; | |
83c81bfe | 4186 | bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, |
3ac8354b | 4187 | &rel, loc); |
30667bf3 | 4188 | } |
ce757d15 | 4189 | else |
47d89dba | 4190 | { |
ce757d15 AM |
4191 | bfd_put_32 (htab->splt->owner, |
4192 | value, | |
4193 | htab->splt->contents + h->plt.offset); | |
4194 | bfd_put_32 (htab->splt->owner, | |
4195 | elf_gp (htab->splt->output_section->owner), | |
4196 | htab->splt->contents + h->plt.offset + 4); | |
47d89dba AM |
4197 | } |
4198 | ||
30667bf3 AM |
4199 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
4200 | { | |
4201 | /* Mark the symbol as undefined, rather than as defined in | |
4202 | the .plt section. Leave the value alone. */ | |
4203 | sym->st_shndx = SHN_UNDEF; | |
4204 | } | |
4205 | } | |
edd21aca | 4206 | |
30667bf3 AM |
4207 | if (h->got.offset != (bfd_vma) -1) |
4208 | { | |
4209 | Elf_Internal_Rela rel; | |
3ac8354b | 4210 | Elf32_External_Rela *loc; |
30667bf3 AM |
4211 | |
4212 | /* This symbol has an entry in the global offset table. Set it | |
4213 | up. */ | |
4214 | ||
4215 | rel.r_offset = ((h->got.offset &~ (bfd_vma) 1) | |
83c81bfe AM |
4216 | + htab->sgot->output_offset |
4217 | + htab->sgot->output_section->vma); | |
30667bf3 | 4218 | |
4dc86686 AM |
4219 | /* If this is a -Bsymbolic link and the symbol is defined |
4220 | locally or was forced to be local because of a version file, | |
4221 | we just want to emit a RELATIVE reloc. The entry in the | |
4222 | global offset table will already have been initialized in the | |
4223 | relocate_section function. */ | |
4224 | if (info->shared | |
4225 | && (info->symbolic || h->dynindx == -1) | |
4226 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
30667bf3 | 4227 | { |
74d1c347 | 4228 | rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
4229 | rel.r_addend = (h->root.u.def.value |
4230 | + h->root.u.def.section->output_offset | |
4231 | + h->root.u.def.section->output_section->vma); | |
4232 | } | |
4233 | else | |
4234 | { | |
49e9d0d3 AM |
4235 | if ((h->got.offset & 1) != 0) |
4236 | abort (); | |
30667bf3 | 4237 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
83c81bfe | 4238 | htab->sgot->contents + h->got.offset); |
30667bf3 AM |
4239 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32); |
4240 | rel.r_addend = 0; | |
4241 | } | |
edd21aca | 4242 | |
3ac8354b AM |
4243 | loc = (Elf32_External_Rela *) htab->srelgot->contents; |
4244 | loc += htab->srelgot->reloc_count++; | |
4245 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 | 4246 | } |
edd21aca | 4247 | |
30667bf3 AM |
4248 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
4249 | { | |
4250 | asection *s; | |
4251 | Elf_Internal_Rela rel; | |
3ac8354b | 4252 | Elf32_External_Rela *loc; |
30667bf3 AM |
4253 | |
4254 | /* This symbol needs a copy reloc. Set it up. */ | |
4255 | ||
49e9d0d3 AM |
4256 | if (! (h->dynindx != -1 |
4257 | && (h->root.type == bfd_link_hash_defined | |
4258 | || h->root.type == bfd_link_hash_defweak))) | |
4259 | abort (); | |
30667bf3 | 4260 | |
83c81bfe | 4261 | s = htab->srelbss; |
30667bf3 AM |
4262 | |
4263 | rel.r_offset = (h->root.u.def.value | |
4264 | + h->root.u.def.section->output_offset | |
4265 | + h->root.u.def.section->output_section->vma); | |
4266 | rel.r_addend = 0; | |
4267 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY); | |
3ac8354b AM |
4268 | loc = (Elf32_External_Rela *) s->contents + s->reloc_count++; |
4269 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 AM |
4270 | } |
4271 | ||
4272 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
4273 | if (h->root.root.string[0] == '_' | |
4274 | && (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4275 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)) | |
4276 | { | |
4277 | sym->st_shndx = SHN_ABS; | |
4278 | } | |
4279 | ||
4280 | return true; | |
4281 | } | |
4282 | ||
98ceb8ce AM |
4283 | /* Used to decide how to sort relocs in an optimal manner for the |
4284 | dynamic linker, before writing them out. */ | |
4285 | ||
4286 | static enum elf_reloc_type_class | |
4287 | elf32_hppa_reloc_type_class (rela) | |
4288 | const Elf_Internal_Rela *rela; | |
4289 | { | |
4290 | if (ELF32_R_SYM (rela->r_info) == 0) | |
4291 | return reloc_class_relative; | |
4292 | ||
4293 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4294 | { | |
4295 | case R_PARISC_IPLT: | |
4296 | return reloc_class_plt; | |
4297 | case R_PARISC_COPY: | |
4298 | return reloc_class_copy; | |
4299 | default: | |
4300 | return reloc_class_normal; | |
4301 | } | |
4302 | } | |
4303 | ||
30667bf3 AM |
4304 | /* Finish up the dynamic sections. */ |
4305 | ||
4306 | static boolean | |
4307 | elf32_hppa_finish_dynamic_sections (output_bfd, info) | |
4308 | bfd *output_bfd; | |
4309 | struct bfd_link_info *info; | |
4310 | { | |
4311 | bfd *dynobj; | |
83c81bfe | 4312 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
4313 | asection *sdyn; |
4314 | ||
83c81bfe | 4315 | htab = hppa_link_hash_table (info); |
ebe50bae | 4316 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
4317 | |
4318 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4319 | ||
ebe50bae | 4320 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
4321 | { |
4322 | Elf32_External_Dyn *dyncon, *dynconend; | |
4323 | ||
49e9d0d3 AM |
4324 | if (sdyn == NULL) |
4325 | abort (); | |
30667bf3 AM |
4326 | |
4327 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
4328 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4329 | for (; dyncon < dynconend; dyncon++) | |
edd21aca | 4330 | { |
30667bf3 AM |
4331 | Elf_Internal_Dyn dyn; |
4332 | asection *s; | |
4333 | ||
4334 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4335 | ||
4336 | switch (dyn.d_tag) | |
4337 | { | |
4338 | default: | |
3ac8354b | 4339 | continue; |
30667bf3 AM |
4340 | |
4341 | case DT_PLTGOT: | |
4342 | /* Use PLTGOT to set the GOT register. */ | |
4343 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
30667bf3 AM |
4344 | break; |
4345 | ||
4346 | case DT_JMPREL: | |
83c81bfe | 4347 | s = htab->srelplt; |
30667bf3 | 4348 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
30667bf3 AM |
4349 | break; |
4350 | ||
4351 | case DT_PLTRELSZ: | |
83c81bfe | 4352 | s = htab->srelplt; |
30667bf3 AM |
4353 | if (s->_cooked_size != 0) |
4354 | dyn.d_un.d_val = s->_cooked_size; | |
4355 | else | |
4356 | dyn.d_un.d_val = s->_raw_size; | |
30667bf3 | 4357 | break; |
4e12ff7f AM |
4358 | |
4359 | case DT_RELASZ: | |
4360 | /* Don't count procedure linkage table relocs in the | |
4361 | overall reloc count. */ | |
4362 | if (htab->srelplt != NULL) | |
4363 | { | |
4364 | s = htab->srelplt->output_section; | |
4365 | if (s->_cooked_size != 0) | |
4366 | dyn.d_un.d_val -= s->_cooked_size; | |
4367 | else | |
4368 | dyn.d_un.d_val -= s->_raw_size; | |
4369 | } | |
4370 | break; | |
30667bf3 | 4371 | } |
3ac8354b AM |
4372 | |
4373 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
edd21aca | 4374 | } |
252b5132 | 4375 | } |
edd21aca | 4376 | |
83c81bfe | 4377 | if (htab->sgot != NULL && htab->sgot->_raw_size != 0) |
30667bf3 | 4378 | { |
74d1c347 AM |
4379 | /* Fill in the first entry in the global offset table. |
4380 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 AM |
4381 | bfd_put_32 (output_bfd, |
4382 | (sdyn != NULL | |
4383 | ? sdyn->output_section->vma + sdyn->output_offset | |
4384 | : (bfd_vma) 0), | |
83c81bfe | 4385 | htab->sgot->contents); |
30667bf3 | 4386 | |
74d1c347 | 4387 | /* The second entry is reserved for use by the dynamic linker. */ |
83c81bfe | 4388 | memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4389 | |
30667bf3 | 4390 | /* Set .got entry size. */ |
83c81bfe | 4391 | elf_section_data (htab->sgot->output_section) |
74d1c347 | 4392 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; |
30667bf3 AM |
4393 | } |
4394 | ||
83c81bfe | 4395 | if (htab->splt != NULL && htab->splt->_raw_size != 0) |
47d89dba AM |
4396 | { |
4397 | /* Set plt entry size. */ | |
83c81bfe | 4398 | elf_section_data (htab->splt->output_section) |
47d89dba AM |
4399 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; |
4400 | ||
83c81bfe | 4401 | if (htab->need_plt_stub) |
47d89dba AM |
4402 | { |
4403 | /* Set up the .plt stub. */ | |
83c81bfe AM |
4404 | memcpy (htab->splt->contents |
4405 | + htab->splt->_raw_size - sizeof (plt_stub), | |
47d89dba AM |
4406 | plt_stub, sizeof (plt_stub)); |
4407 | ||
83c81bfe AM |
4408 | if ((htab->splt->output_offset |
4409 | + htab->splt->output_section->vma | |
4410 | + htab->splt->_raw_size) | |
4411 | != (htab->sgot->output_offset | |
4412 | + htab->sgot->output_section->vma)) | |
47d89dba AM |
4413 | { |
4414 | (*_bfd_error_handler) | |
4415 | (_(".got section not immediately after .plt section")); | |
4416 | return false; | |
4417 | } | |
4418 | } | |
4419 | } | |
30667bf3 | 4420 | |
252b5132 | 4421 | return true; |
30667bf3 | 4422 | } |
252b5132 | 4423 | |
d952f17a AM |
4424 | /* Tweak the OSABI field of the elf header. */ |
4425 | ||
4426 | static void | |
4427 | elf32_hppa_post_process_headers (abfd, link_info) | |
4428 | bfd *abfd; | |
4429 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
4430 | { | |
4431 | Elf_Internal_Ehdr * i_ehdrp; | |
4432 | ||
4433 | i_ehdrp = elf_elfheader (abfd); | |
4434 | ||
4435 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
4436 | { | |
4437 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
4438 | } | |
4439 | else | |
4440 | { | |
4441 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; | |
4442 | } | |
4443 | } | |
4444 | ||
30667bf3 AM |
4445 | /* Called when writing out an object file to decide the type of a |
4446 | symbol. */ | |
4447 | static int | |
4448 | elf32_hppa_elf_get_symbol_type (elf_sym, type) | |
4449 | Elf_Internal_Sym *elf_sym; | |
4450 | int type; | |
4451 | { | |
4452 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4453 | return STT_PARISC_MILLI; | |
4454 | else | |
4455 | return type; | |
252b5132 RH |
4456 | } |
4457 | ||
4458 | /* Misc BFD support code. */ | |
30667bf3 AM |
4459 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4460 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4461 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4462 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4463 | |
252b5132 | 4464 | /* Stuff for the BFD linker. */ |
c46b7515 | 4465 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 AM |
4466 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
4467 | #define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook | |
4468 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol | |
ebe50bae | 4469 | #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol |
30667bf3 AM |
4470 | #define elf_backend_check_relocs elf32_hppa_check_relocs |
4471 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4472 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4473 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4474 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4475 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4476 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4477 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4478 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4479 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
4480 | #define elf_backend_object_p elf32_hppa_object_p | |
4481 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d952f17a | 4482 | #define elf_backend_post_process_headers elf32_hppa_post_process_headers |
30667bf3 | 4483 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
98ceb8ce | 4484 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
30667bf3 AM |
4485 | |
4486 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4487 | #define elf_backend_can_refcount 1 |
30667bf3 AM |
4488 | #define elf_backend_plt_alignment 2 |
4489 | #define elf_backend_want_got_plt 0 | |
4490 | #define elf_backend_plt_readonly 0 | |
4491 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4492 | #define elf_backend_got_header_size 8 |
252b5132 RH |
4493 | |
4494 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4495 | #define TARGET_BIG_NAME "elf32-hppa" | |
4496 | #define ELF_ARCH bfd_arch_hppa | |
4497 | #define ELF_MACHINE_CODE EM_PARISC | |
4498 | #define ELF_MAXPAGESIZE 0x1000 | |
4499 | ||
4500 | #include "elf32-target.h" | |
d952f17a AM |
4501 | |
4502 | #undef TARGET_BIG_SYM | |
4503 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec | |
4504 | #undef TARGET_BIG_NAME | |
4505 | #define TARGET_BIG_NAME "elf32-hppa-linux" | |
4506 | ||
4507 | #define INCLUDED_TARGET_FILE 1 | |
4508 | #include "elf32-target.h" |