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252b5132 | 1 | /* BFD back-end for HP PA-RISC ELF files. |
7898deda | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001 |
252b5132 RH |
3 | Free Software Foundation, Inc. |
4 | ||
30667bf3 | 5 | Original code by |
252b5132 RH |
6 | Center for Software Science |
7 | Department of Computer Science | |
8 | University of Utah | |
30667bf3 | 9 | Largely rewritten by Alan Modra <alan@linuxcare.com.au> |
252b5132 RH |
10 | |
11 | This file is part of BFD, the Binary File Descriptor library. | |
12 | ||
13 | This program is free software; you can redistribute it and/or modify | |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; either version 2 of the License, or | |
16 | (at your option) any later version. | |
17 | ||
18 | This program is distributed in the hope that it will be useful, | |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
22 | ||
23 | You should have received a copy of the GNU General Public License | |
24 | along with this program; if not, write to the Free Software | |
25 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
26 | ||
27 | #include "bfd.h" | |
28 | #include "sysdep.h" | |
252b5132 RH |
29 | #include "libbfd.h" |
30 | #include "elf-bfd.h" | |
9e103c9c JL |
31 | #include "elf/hppa.h" |
32 | #include "libhppa.h" | |
33 | #include "elf32-hppa.h" | |
34 | #define ARCH_SIZE 32 | |
35 | #include "elf-hppa.h" | |
edd21aca | 36 | #include "elf32-hppa.h" |
9e103c9c | 37 | |
74d1c347 AM |
38 | /* In order to gain some understanding of code in this file without |
39 | knowing all the intricate details of the linker, note the | |
40 | following: | |
41 | ||
42 | Functions named elf32_hppa_* are called by external routines, other | |
43 | functions are only called locally. elf32_hppa_* functions appear | |
44 | in this file more or less in the order in which they are called | |
45 | from external routines. eg. elf32_hppa_check_relocs is called | |
46 | early in the link process, elf32_hppa_finish_dynamic_sections is | |
47 | one of the last functions. */ | |
48 | ||
edd21aca | 49 | /* We use two hash tables to hold information for linking PA ELF objects. |
252b5132 RH |
50 | |
51 | The first is the elf32_hppa_link_hash_table which is derived | |
52 | from the standard ELF linker hash table. We use this as a place to | |
53 | attach other hash tables and static information. | |
54 | ||
55 | The second is the stub hash table which is derived from the | |
56 | base BFD hash table. The stub hash table holds the information | |
30667bf3 AM |
57 | necessary to build the linker stubs during a link. |
58 | ||
59 | There are a number of different stubs generated by the linker. | |
60 | ||
61 | Long branch stub: | |
62 | : ldil LR'X,%r1 | |
63 | : be,n RR'X(%sr4,%r1) | |
64 | ||
65 | PIC long branch stub: | |
66 | : b,l .+8,%r1 | |
3ee1d854 AM |
67 | : addil LR'X - ($PIC_pcrel$0 - 4),%r1 |
68 | : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1) | |
30667bf3 AM |
69 | |
70 | Import stub to call shared library routine from normal object file | |
71 | (single sub-space version) | |
3ee1d854 AM |
72 | : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point |
73 | : ldw RR'lt_ptr+ltoff(%r1),%r21 | |
30667bf3 | 74 | : bv %r0(%r21) |
3ee1d854 | 75 | : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. |
30667bf3 AM |
76 | |
77 | Import stub to call shared library routine from shared library | |
78 | (single sub-space version) | |
3ee1d854 AM |
79 | : addil LR'ltoff,%r19 ; get procedure entry point |
80 | : ldw RR'ltoff(%r1),%r21 | |
30667bf3 | 81 | : bv %r0(%r21) |
3ee1d854 | 82 | : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. |
30667bf3 AM |
83 | |
84 | Import stub to call shared library routine from normal object file | |
85 | (multiple sub-space support) | |
3ee1d854 AM |
86 | : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point |
87 | : ldw RR'lt_ptr+ltoff(%r1),%r21 | |
88 | : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. | |
30667bf3 AM |
89 | : ldsid (%r21),%r1 |
90 | : mtsp %r1,%sr0 | |
91 | : be 0(%sr0,%r21) ; branch to target | |
92 | : stw %rp,-24(%sp) ; save rp | |
93 | ||
94 | Import stub to call shared library routine from shared library | |
95 | (multiple sub-space support) | |
3ee1d854 AM |
96 | : addil LR'ltoff,%r19 ; get procedure entry point |
97 | : ldw RR'ltoff(%r1),%r21 | |
98 | : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. | |
30667bf3 AM |
99 | : ldsid (%r21),%r1 |
100 | : mtsp %r1,%sr0 | |
101 | : be 0(%sr0,%r21) ; branch to target | |
102 | : stw %rp,-24(%sp) ; save rp | |
103 | ||
104 | Export stub to return from shared lib routine (multiple sub-space support) | |
105 | One of these is created for each exported procedure in a shared | |
106 | library (and stored in the shared lib). Shared lib routines are | |
107 | called via the first instruction in the export stub so that we can | |
108 | do an inter-space return. Not required for single sub-space. | |
109 | : bl,n X,%rp ; trap the return | |
110 | : nop | |
111 | : ldw -24(%sp),%rp ; restore the original rp | |
112 | : ldsid (%rp),%r1 | |
113 | : mtsp %r1,%sr0 | |
74d1c347 | 114 | : be,n 0(%sr0,%rp) ; inter-space return */ |
30667bf3 AM |
115 | |
116 | #define PLT_ENTRY_SIZE 8 | |
74d1c347 | 117 | #define PLABEL_PLT_ENTRY_SIZE PLT_ENTRY_SIZE |
30667bf3 AM |
118 | #define GOT_ENTRY_SIZE 4 |
119 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
120 | ||
47d89dba AM |
121 | static const bfd_byte plt_stub[] = |
122 | { | |
123 | 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */ | |
124 | 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */ | |
125 | 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */ | |
126 | #define PLT_STUB_ENTRY (3*4) | |
127 | 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */ | |
128 | 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */ | |
129 | 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */ | |
130 | 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */ | |
131 | }; | |
132 | ||
30667bf3 AM |
133 | /* Section name for stubs is the associated section name plus this |
134 | string. */ | |
135 | #define STUB_SUFFIX ".stub" | |
136 | ||
98ceb8ce AM |
137 | /* We don't need to copy certain PC- or GP-relative dynamic relocs |
138 | into a shared object's dynamic section. All the relocs of the | |
139 | limited class we are interested in, are absolute. */ | |
140 | #ifndef RELATIVE_DYNRELOCS | |
141 | #define RELATIVE_DYNRELOCS 0 | |
446f2863 | 142 | #define IS_ABSOLUTE_RELOC(r_type) 1 |
30667bf3 AM |
143 | #endif |
144 | ||
30667bf3 AM |
145 | enum elf32_hppa_stub_type { |
146 | hppa_stub_long_branch, | |
147 | hppa_stub_long_branch_shared, | |
148 | hppa_stub_import, | |
149 | hppa_stub_import_shared, | |
150 | hppa_stub_export, | |
151 | hppa_stub_none | |
152 | }; | |
153 | ||
30667bf3 | 154 | struct elf32_hppa_stub_hash_entry { |
252b5132 | 155 | |
edd21aca | 156 | /* Base hash table entry structure. */ |
252b5132 RH |
157 | struct bfd_hash_entry root; |
158 | ||
edd21aca AM |
159 | /* The stub section. */ |
160 | asection *stub_sec; | |
161 | ||
162 | /* Offset within stub_sec of the beginning of this stub. */ | |
30667bf3 | 163 | bfd_vma stub_offset; |
252b5132 RH |
164 | |
165 | /* Given the symbol's value and its section we can determine its final | |
166 | value when building the stubs (so the stub knows where to jump. */ | |
30667bf3 | 167 | bfd_vma target_value; |
252b5132 | 168 | asection *target_section; |
30667bf3 AM |
169 | |
170 | enum elf32_hppa_stub_type stub_type; | |
171 | ||
172 | /* The symbol table entry, if any, that this was derived from. */ | |
173 | struct elf32_hppa_link_hash_entry *h; | |
174 | ||
25f72752 AM |
175 | /* Where this stub is being called from, or, in the case of combined |
176 | stub sections, the first input section in the group. */ | |
177 | asection *id_sec; | |
252b5132 RH |
178 | }; |
179 | ||
30667bf3 AM |
180 | struct elf32_hppa_link_hash_entry { |
181 | ||
182 | struct elf_link_hash_entry elf; | |
183 | ||
184 | /* A pointer to the most recently used stub hash entry against this | |
185 | symbol. */ | |
186 | struct elf32_hppa_stub_hash_entry *stub_cache; | |
187 | ||
30667bf3 AM |
188 | /* Used to count relocations for delayed sizing of relocation |
189 | sections. */ | |
190 | struct elf32_hppa_dyn_reloc_entry { | |
191 | ||
192 | /* Next relocation in the chain. */ | |
193 | struct elf32_hppa_dyn_reloc_entry *next; | |
194 | ||
98ceb8ce AM |
195 | /* The input section of the reloc. */ |
196 | asection *sec; | |
30667bf3 AM |
197 | |
198 | /* Number of relocs copied in this section. */ | |
199 | bfd_size_type count; | |
98ceb8ce AM |
200 | |
201 | #if RELATIVE_DYNRELOCS | |
202 | /* Number of relative relocs copied for the input section. */ | |
203 | bfd_size_type relative_count; | |
204 | #endif | |
205 | } *dyn_relocs; | |
30667bf3 AM |
206 | |
207 | /* Set during a static link if we detect a function is PIC. */ | |
12cca0d2 AM |
208 | unsigned int maybe_pic_call:1; |
209 | ||
210 | /* Set if the only reason we need a .plt entry is for a non-PIC to | |
211 | PIC function call. */ | |
74d1c347 AM |
212 | unsigned int pic_call:1; |
213 | ||
214 | /* Set if this symbol is used by a plabel reloc. */ | |
215 | unsigned int plabel:1; | |
30667bf3 AM |
216 | }; |
217 | ||
30667bf3 AM |
218 | struct elf32_hppa_link_hash_table { |
219 | ||
252b5132 | 220 | /* The main hash table. */ |
ebe50bae | 221 | struct elf_link_hash_table elf; |
252b5132 RH |
222 | |
223 | /* The stub hash table. */ | |
edd21aca | 224 | struct bfd_hash_table stub_hash_table; |
252b5132 | 225 | |
30667bf3 AM |
226 | /* Linker stub bfd. */ |
227 | bfd *stub_bfd; | |
228 | ||
30667bf3 AM |
229 | /* Linker call-backs. */ |
230 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
231 | void (*layout_sections_again) PARAMS ((void)); | |
232 | ||
25f72752 AM |
233 | /* Array to keep track of which stub sections have been created, and |
234 | information on stub grouping. */ | |
235 | struct map_stub { | |
236 | /* This is the section to which stubs in the group will be | |
237 | attached. */ | |
238 | asection *link_sec; | |
239 | /* The stub section. */ | |
240 | asection *stub_sec; | |
25f72752 | 241 | } *stub_group; |
30667bf3 | 242 | |
30667bf3 AM |
243 | /* Short-cuts to get to dynamic linker sections. */ |
244 | asection *sgot; | |
245 | asection *srelgot; | |
246 | asection *splt; | |
247 | asection *srelplt; | |
248 | asection *sdynbss; | |
249 | asection *srelbss; | |
47d89dba | 250 | |
c46b7515 AM |
251 | /* Used during a final link to store the base of the text and data |
252 | segments so that we can perform SEGREL relocations. */ | |
253 | bfd_vma text_segment_base; | |
254 | bfd_vma data_segment_base; | |
255 | ||
47d89dba AM |
256 | /* Whether we support multiple sub-spaces for shared libs. */ |
257 | unsigned int multi_subspace:1; | |
258 | ||
259 | /* Flags set when PCREL12F and PCREL17F branches detected. Used to | |
260 | select suitable defaults for the stub group size. */ | |
261 | unsigned int has_12bit_branch:1; | |
262 | unsigned int has_17bit_branch:1; | |
263 | ||
264 | /* Set if we need a .plt stub to support lazy dynamic linking. */ | |
265 | unsigned int need_plt_stub:1; | |
252b5132 RH |
266 | }; |
267 | ||
30667bf3 AM |
268 | /* Various hash macros and functions. */ |
269 | #define hppa_link_hash_table(p) \ | |
edd21aca | 270 | ((struct elf32_hppa_link_hash_table *) ((p)->hash)) |
252b5132 | 271 | |
30667bf3 AM |
272 | #define hppa_stub_hash_lookup(table, string, create, copy) \ |
273 | ((struct elf32_hppa_stub_hash_entry *) \ | |
274 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
275 | ||
276 | static struct bfd_hash_entry *stub_hash_newfunc | |
277 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
edd21aca | 278 | |
30667bf3 | 279 | static struct bfd_hash_entry *hppa_link_hash_newfunc |
edd21aca | 280 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
252b5132 RH |
281 | |
282 | static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create | |
283 | PARAMS ((bfd *)); | |
284 | ||
30667bf3 AM |
285 | /* Stub handling functions. */ |
286 | static char *hppa_stub_name | |
287 | PARAMS ((const asection *, const asection *, | |
288 | const struct elf32_hppa_link_hash_entry *, | |
289 | const Elf_Internal_Rela *)); | |
edd21aca | 290 | |
30667bf3 AM |
291 | static struct elf32_hppa_stub_hash_entry *hppa_get_stub_entry |
292 | PARAMS ((const asection *, const asection *, | |
293 | struct elf32_hppa_link_hash_entry *, | |
25f72752 AM |
294 | const Elf_Internal_Rela *, |
295 | struct elf32_hppa_link_hash_table *)); | |
edd21aca | 296 | |
30667bf3 | 297 | static struct elf32_hppa_stub_hash_entry *hppa_add_stub |
25f72752 | 298 | PARAMS ((const char *, asection *, struct elf32_hppa_link_hash_table *)); |
30667bf3 AM |
299 | |
300 | static enum elf32_hppa_stub_type hppa_type_of_stub | |
301 | PARAMS ((asection *, const Elf_Internal_Rela *, | |
302 | struct elf32_hppa_link_hash_entry *, bfd_vma)); | |
303 | ||
304 | static boolean hppa_build_one_stub | |
305 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
306 | ||
307 | static boolean hppa_size_one_stub | |
308 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
309 | ||
30667bf3 AM |
310 | /* BFD and elf backend functions. */ |
311 | static boolean elf32_hppa_object_p PARAMS ((bfd *)); | |
252b5132 | 312 | |
edd21aca AM |
313 | static boolean elf32_hppa_add_symbol_hook |
314 | PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, | |
315 | const char **, flagword *, asection **, bfd_vma *)); | |
252b5132 | 316 | |
30667bf3 AM |
317 | static boolean elf32_hppa_create_dynamic_sections |
318 | PARAMS ((bfd *, struct bfd_link_info *)); | |
252b5132 | 319 | |
ebe50bae AM |
320 | static void elf32_hppa_copy_indirect_symbol |
321 | PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *)); | |
322 | ||
30667bf3 AM |
323 | static boolean elf32_hppa_check_relocs |
324 | PARAMS ((bfd *, struct bfd_link_info *, | |
325 | asection *, const Elf_Internal_Rela *)); | |
326 | ||
327 | static asection *elf32_hppa_gc_mark_hook | |
328 | PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *, | |
329 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
330 | ||
331 | static boolean elf32_hppa_gc_sweep_hook | |
332 | PARAMS ((bfd *, struct bfd_link_info *, | |
333 | asection *, const Elf_Internal_Rela *)); | |
334 | ||
74d1c347 AM |
335 | static void elf32_hppa_hide_symbol |
336 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
337 | ||
30667bf3 AM |
338 | static boolean elf32_hppa_adjust_dynamic_symbol |
339 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
340 | ||
341 | static boolean hppa_handle_PIC_calls | |
342 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
343 | ||
98ceb8ce AM |
344 | static boolean allocate_dynrelocs |
345 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
346 | ||
347 | static boolean readonly_dynrelocs | |
30667bf3 | 348 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
30667bf3 | 349 | |
d5c73c2f AM |
350 | static boolean clobber_millicode_symbols |
351 | PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *)); | |
352 | ||
30667bf3 AM |
353 | static boolean elf32_hppa_size_dynamic_sections |
354 | PARAMS ((bfd *, struct bfd_link_info *)); | |
355 | ||
c46b7515 AM |
356 | static boolean elf32_hppa_final_link |
357 | PARAMS ((bfd *, struct bfd_link_info *)); | |
358 | ||
359 | static void hppa_record_segment_addr | |
360 | PARAMS ((bfd *, asection *, PTR)); | |
361 | ||
30667bf3 AM |
362 | static bfd_reloc_status_type final_link_relocate |
363 | PARAMS ((asection *, bfd_byte *, const Elf_Internal_Rela *, | |
25f72752 | 364 | bfd_vma, struct elf32_hppa_link_hash_table *, asection *, |
30667bf3 AM |
365 | struct elf32_hppa_link_hash_entry *)); |
366 | ||
367 | static boolean elf32_hppa_relocate_section | |
368 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, | |
369 | bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
370 | ||
c46b7515 AM |
371 | static int hppa_unwind_entry_compare |
372 | PARAMS ((const PTR, const PTR)); | |
373 | ||
30667bf3 AM |
374 | static boolean elf32_hppa_finish_dynamic_symbol |
375 | PARAMS ((bfd *, struct bfd_link_info *, | |
376 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
377 | ||
98ceb8ce AM |
378 | static enum elf_reloc_type_class elf32_hppa_reloc_type_class |
379 | PARAMS ((const Elf_Internal_Rela *)); | |
380 | ||
30667bf3 AM |
381 | static boolean elf32_hppa_finish_dynamic_sections |
382 | PARAMS ((bfd *, struct bfd_link_info *)); | |
383 | ||
d952f17a AM |
384 | static void elf32_hppa_post_process_headers |
385 | PARAMS ((bfd *, struct bfd_link_info *)); | |
386 | ||
30667bf3 AM |
387 | static int elf32_hppa_elf_get_symbol_type |
388 | PARAMS ((Elf_Internal_Sym *, int)); | |
252b5132 | 389 | |
252b5132 RH |
390 | /* Assorted hash table functions. */ |
391 | ||
392 | /* Initialize an entry in the stub hash table. */ | |
393 | ||
394 | static struct bfd_hash_entry * | |
30667bf3 | 395 | stub_hash_newfunc (entry, table, string) |
252b5132 RH |
396 | struct bfd_hash_entry *entry; |
397 | struct bfd_hash_table *table; | |
398 | const char *string; | |
399 | { | |
252b5132 RH |
400 | /* Allocate the structure if it has not already been allocated by a |
401 | subclass. */ | |
ebe50bae | 402 | if (entry == NULL) |
30667bf3 | 403 | { |
ebe50bae AM |
404 | entry = bfd_hash_allocate (table, |
405 | sizeof (struct elf32_hppa_stub_hash_entry)); | |
406 | if (entry == NULL) | |
407 | return entry; | |
30667bf3 | 408 | } |
252b5132 RH |
409 | |
410 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
411 | entry = bfd_hash_newfunc (entry, table, string); |
412 | if (entry != NULL) | |
252b5132 | 413 | { |
ebe50bae AM |
414 | struct elf32_hppa_stub_hash_entry *eh; |
415 | ||
252b5132 | 416 | /* Initialize the local fields. */ |
ebe50bae AM |
417 | eh = (struct elf32_hppa_stub_hash_entry *) entry; |
418 | eh->stub_sec = NULL; | |
419 | eh->stub_offset = 0; | |
420 | eh->target_value = 0; | |
421 | eh->target_section = NULL; | |
422 | eh->stub_type = hppa_stub_long_branch; | |
423 | eh->h = NULL; | |
424 | eh->id_sec = NULL; | |
30667bf3 AM |
425 | } |
426 | ||
ebe50bae | 427 | return entry; |
30667bf3 AM |
428 | } |
429 | ||
30667bf3 AM |
430 | /* Initialize an entry in the link hash table. */ |
431 | ||
432 | static struct bfd_hash_entry * | |
433 | hppa_link_hash_newfunc (entry, table, string) | |
434 | struct bfd_hash_entry *entry; | |
435 | struct bfd_hash_table *table; | |
436 | const char *string; | |
437 | { | |
30667bf3 AM |
438 | /* Allocate the structure if it has not already been allocated by a |
439 | subclass. */ | |
ebe50bae | 440 | if (entry == NULL) |
30667bf3 | 441 | { |
ebe50bae AM |
442 | entry = bfd_hash_allocate (table, |
443 | sizeof (struct elf32_hppa_link_hash_entry)); | |
444 | if (entry == NULL) | |
445 | return entry; | |
30667bf3 AM |
446 | } |
447 | ||
448 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
449 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
450 | if (entry != NULL) | |
30667bf3 | 451 | { |
ebe50bae AM |
452 | struct elf32_hppa_link_hash_entry *eh; |
453 | ||
30667bf3 | 454 | /* Initialize the local fields. */ |
ebe50bae AM |
455 | eh = (struct elf32_hppa_link_hash_entry *) entry; |
456 | eh->stub_cache = NULL; | |
457 | eh->dyn_relocs = NULL; | |
458 | eh->maybe_pic_call = 0; | |
459 | eh->pic_call = 0; | |
460 | eh->plabel = 0; | |
252b5132 RH |
461 | } |
462 | ||
ebe50bae | 463 | return entry; |
252b5132 RH |
464 | } |
465 | ||
252b5132 RH |
466 | /* Create the derived linker hash table. The PA ELF port uses the derived |
467 | hash table to keep information specific to the PA ELF linker (without | |
468 | using static variables). */ | |
469 | ||
470 | static struct bfd_link_hash_table * | |
471 | elf32_hppa_link_hash_table_create (abfd) | |
472 | bfd *abfd; | |
473 | { | |
474 | struct elf32_hppa_link_hash_table *ret; | |
dc810e39 | 475 | bfd_size_type amt = sizeof (*ret); |
252b5132 | 476 | |
dc810e39 | 477 | ret = (struct elf32_hppa_link_hash_table *) bfd_alloc (abfd, amt); |
252b5132 RH |
478 | if (ret == NULL) |
479 | return NULL; | |
edd21aca | 480 | |
ebe50bae | 481 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, hppa_link_hash_newfunc)) |
252b5132 RH |
482 | { |
483 | bfd_release (abfd, ret); | |
484 | return NULL; | |
485 | } | |
edd21aca AM |
486 | |
487 | /* Init the stub hash table too. */ | |
30667bf3 | 488 | if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc)) |
edd21aca AM |
489 | return NULL; |
490 | ||
30667bf3 | 491 | ret->stub_bfd = NULL; |
30667bf3 AM |
492 | ret->add_stub_section = NULL; |
493 | ret->layout_sections_again = NULL; | |
25f72752 | 494 | ret->stub_group = NULL; |
30667bf3 AM |
495 | ret->sgot = NULL; |
496 | ret->srelgot = NULL; | |
497 | ret->splt = NULL; | |
498 | ret->srelplt = NULL; | |
499 | ret->sdynbss = NULL; | |
500 | ret->srelbss = NULL; | |
c46b7515 AM |
501 | ret->text_segment_base = (bfd_vma) -1; |
502 | ret->data_segment_base = (bfd_vma) -1; | |
47d89dba AM |
503 | ret->multi_subspace = 0; |
504 | ret->has_12bit_branch = 0; | |
505 | ret->has_17bit_branch = 0; | |
506 | ret->need_plt_stub = 0; | |
252b5132 | 507 | |
ebe50bae | 508 | return &ret->elf.root; |
252b5132 RH |
509 | } |
510 | ||
30667bf3 AM |
511 | /* Build a name for an entry in the stub hash table. */ |
512 | ||
edd21aca | 513 | static char * |
30667bf3 | 514 | hppa_stub_name (input_section, sym_sec, hash, rel) |
edd21aca | 515 | const asection *input_section; |
30667bf3 AM |
516 | const asection *sym_sec; |
517 | const struct elf32_hppa_link_hash_entry *hash; | |
518 | const Elf_Internal_Rela *rel; | |
edd21aca AM |
519 | { |
520 | char *stub_name; | |
dc810e39 | 521 | bfd_size_type len; |
edd21aca | 522 | |
30667bf3 AM |
523 | if (hash) |
524 | { | |
525 | len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1; | |
526 | stub_name = bfd_malloc (len); | |
527 | if (stub_name != NULL) | |
528 | { | |
529 | sprintf (stub_name, "%08x_%s+%x", | |
530 | input_section->id & 0xffffffff, | |
531 | hash->elf.root.root.string, | |
532 | (int) rel->r_addend & 0xffffffff); | |
533 | } | |
534 | } | |
535 | else | |
edd21aca | 536 | { |
30667bf3 AM |
537 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
538 | stub_name = bfd_malloc (len); | |
539 | if (stub_name != NULL) | |
540 | { | |
541 | sprintf (stub_name, "%08x_%x:%x+%x", | |
542 | input_section->id & 0xffffffff, | |
543 | sym_sec->id & 0xffffffff, | |
544 | (int) ELF32_R_SYM (rel->r_info) & 0xffffffff, | |
545 | (int) rel->r_addend & 0xffffffff); | |
546 | } | |
edd21aca AM |
547 | } |
548 | return stub_name; | |
549 | } | |
252b5132 | 550 | |
30667bf3 AM |
551 | /* Look up an entry in the stub hash. Stub entries are cached because |
552 | creating the stub name takes a bit of time. */ | |
553 | ||
554 | static struct elf32_hppa_stub_hash_entry * | |
83c81bfe | 555 | hppa_get_stub_entry (input_section, sym_sec, hash, rel, htab) |
30667bf3 AM |
556 | const asection *input_section; |
557 | const asection *sym_sec; | |
558 | struct elf32_hppa_link_hash_entry *hash; | |
559 | const Elf_Internal_Rela *rel; | |
83c81bfe | 560 | struct elf32_hppa_link_hash_table *htab; |
252b5132 | 561 | { |
30667bf3 | 562 | struct elf32_hppa_stub_hash_entry *stub_entry; |
25f72752 AM |
563 | const asection *id_sec; |
564 | ||
565 | /* If this input section is part of a group of sections sharing one | |
566 | stub section, then use the id of the first section in the group. | |
567 | Stub names need to include a section id, as there may well be | |
568 | more than one stub used to reach say, printf, and we need to | |
569 | distinguish between them. */ | |
83c81bfe | 570 | id_sec = htab->stub_group[input_section->id].link_sec; |
edd21aca | 571 | |
30667bf3 AM |
572 | if (hash != NULL && hash->stub_cache != NULL |
573 | && hash->stub_cache->h == hash | |
25f72752 | 574 | && hash->stub_cache->id_sec == id_sec) |
edd21aca | 575 | { |
30667bf3 AM |
576 | stub_entry = hash->stub_cache; |
577 | } | |
578 | else | |
579 | { | |
30667bf3 | 580 | char *stub_name; |
edd21aca | 581 | |
25f72752 | 582 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, rel); |
30667bf3 AM |
583 | if (stub_name == NULL) |
584 | return NULL; | |
edd21aca | 585 | |
83c81bfe | 586 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
25f72752 | 587 | stub_name, false, false); |
30667bf3 AM |
588 | if (stub_entry == NULL) |
589 | { | |
590 | if (hash == NULL || hash->elf.root.type != bfd_link_hash_undefweak) | |
591 | (*_bfd_error_handler) (_("%s(%s+0x%lx): cannot find stub entry %s"), | |
8f615d07 | 592 | bfd_archive_filename (input_section->owner), |
30667bf3 AM |
593 | input_section->name, |
594 | (long) rel->r_offset, | |
595 | stub_name); | |
596 | } | |
597 | else | |
598 | { | |
599 | if (hash != NULL) | |
600 | hash->stub_cache = stub_entry; | |
601 | } | |
602 | ||
603 | free (stub_name); | |
edd21aca | 604 | } |
30667bf3 AM |
605 | |
606 | return stub_entry; | |
607 | } | |
608 | ||
30667bf3 AM |
609 | /* Add a new stub entry to the stub hash. Not all fields of the new |
610 | stub entry are initialised. */ | |
611 | ||
612 | static struct elf32_hppa_stub_hash_entry * | |
83c81bfe | 613 | hppa_add_stub (stub_name, section, htab) |
30667bf3 AM |
614 | const char *stub_name; |
615 | asection *section; | |
83c81bfe | 616 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 617 | { |
25f72752 | 618 | asection *link_sec; |
30667bf3 | 619 | asection *stub_sec; |
30667bf3 | 620 | struct elf32_hppa_stub_hash_entry *stub_entry; |
edd21aca | 621 | |
83c81bfe AM |
622 | link_sec = htab->stub_group[section->id].link_sec; |
623 | stub_sec = htab->stub_group[section->id].stub_sec; | |
30667bf3 | 624 | if (stub_sec == NULL) |
edd21aca | 625 | { |
83c81bfe | 626 | stub_sec = htab->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
627 | if (stub_sec == NULL) |
628 | { | |
dc810e39 | 629 | bfd_size_type len; |
30667bf3 AM |
630 | char *s_name; |
631 | ||
25f72752 | 632 | len = strlen (link_sec->name) + sizeof (STUB_SUFFIX); |
83c81bfe | 633 | s_name = bfd_alloc (htab->stub_bfd, len); |
30667bf3 AM |
634 | if (s_name == NULL) |
635 | return NULL; | |
636 | ||
25f72752 | 637 | strcpy (s_name, link_sec->name); |
30667bf3 | 638 | strcpy (s_name + len - sizeof (STUB_SUFFIX), STUB_SUFFIX); |
83c81bfe | 639 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
640 | if (stub_sec == NULL) |
641 | return NULL; | |
83c81bfe | 642 | htab->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 643 | } |
83c81bfe | 644 | htab->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 645 | } |
252b5132 | 646 | |
30667bf3 | 647 | /* Enter this entry into the linker stub hash table. */ |
83c81bfe | 648 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
30667bf3 AM |
649 | true, false); |
650 | if (stub_entry == NULL) | |
651 | { | |
652 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
8f615d07 | 653 | bfd_archive_filename (section->owner), |
30667bf3 AM |
654 | stub_name); |
655 | return NULL; | |
edd21aca AM |
656 | } |
657 | ||
30667bf3 | 658 | stub_entry->stub_sec = stub_sec; |
30667bf3 | 659 | stub_entry->stub_offset = 0; |
25f72752 | 660 | stub_entry->id_sec = link_sec; |
30667bf3 | 661 | return stub_entry; |
edd21aca AM |
662 | } |
663 | ||
30667bf3 AM |
664 | /* Determine the type of stub needed, if any, for a call. */ |
665 | ||
666 | static enum elf32_hppa_stub_type | |
667 | hppa_type_of_stub (input_sec, rel, hash, destination) | |
668 | asection *input_sec; | |
669 | const Elf_Internal_Rela *rel; | |
670 | struct elf32_hppa_link_hash_entry *hash; | |
671 | bfd_vma destination; | |
edd21aca | 672 | { |
edd21aca | 673 | bfd_vma location; |
30667bf3 AM |
674 | bfd_vma branch_offset; |
675 | bfd_vma max_branch_offset; | |
676 | unsigned int r_type; | |
677 | ||
678 | if (hash != NULL | |
679 | && (((hash->elf.root.type == bfd_link_hash_defined | |
74d1c347 AM |
680 | || hash->elf.root.type == bfd_link_hash_defweak) |
681 | && hash->elf.root.u.def.section->output_section == NULL) | |
682 | || (hash->elf.root.type == bfd_link_hash_defweak | |
683 | && hash->elf.dynindx != -1 | |
684 | && hash->elf.plt.offset != (bfd_vma) -1) | |
30667bf3 AM |
685 | || hash->elf.root.type == bfd_link_hash_undefweak |
686 | || hash->elf.root.type == bfd_link_hash_undefined | |
12cca0d2 | 687 | || (hash->maybe_pic_call && !(input_sec->flags & SEC_HAS_GOT_REF)))) |
30667bf3 AM |
688 | { |
689 | /* If output_section is NULL, then it's a symbol defined in a | |
690 | shared library. We will need an import stub. Decide between | |
74d1c347 AM |
691 | hppa_stub_import and hppa_stub_import_shared later. For |
692 | shared links we need stubs for undefined or weak syms too; | |
693 | They will presumably be resolved by the dynamic linker. */ | |
30667bf3 AM |
694 | return hppa_stub_import; |
695 | } | |
edd21aca | 696 | |
30667bf3 AM |
697 | /* Determine where the call point is. */ |
698 | location = (input_sec->output_offset | |
699 | + input_sec->output_section->vma | |
700 | + rel->r_offset); | |
edd21aca | 701 | |
30667bf3 AM |
702 | branch_offset = destination - location - 8; |
703 | r_type = ELF32_R_TYPE (rel->r_info); | |
edd21aca | 704 | |
30667bf3 AM |
705 | /* Determine if a long branch stub is needed. parisc branch offsets |
706 | are relative to the second instruction past the branch, ie. +8 | |
707 | bytes on from the branch instruction location. The offset is | |
708 | signed and counts in units of 4 bytes. */ | |
709 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 710 | { |
30667bf3 AM |
711 | max_branch_offset = (1 << (17-1)) << 2; |
712 | } | |
713 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
714 | { | |
715 | max_branch_offset = (1 << (12-1)) << 2; | |
716 | } | |
25f72752 | 717 | else /* R_PARISC_PCREL22F. */ |
30667bf3 AM |
718 | { |
719 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
720 | } |
721 | ||
30667bf3 | 722 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
723 | return hppa_stub_long_branch; |
724 | ||
30667bf3 AM |
725 | return hppa_stub_none; |
726 | } | |
edd21aca | 727 | |
30667bf3 AM |
728 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
729 | IN_ARG contains the link info pointer. */ | |
edd21aca | 730 | |
30667bf3 AM |
731 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
732 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 733 | |
30667bf3 | 734 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 735 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 736 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 737 | |
3ee1d854 AM |
738 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
739 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 740 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 741 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 742 | |
3ee1d854 AM |
743 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
744 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 745 | |
30667bf3 AM |
746 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
747 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
748 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
749 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 750 | |
30667bf3 AM |
751 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
752 | #define NOP 0x08000240 /* nop */ | |
753 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
754 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
755 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 756 | |
30667bf3 AM |
757 | #ifndef R19_STUBS |
758 | #define R19_STUBS 1 | |
759 | #endif | |
edd21aca | 760 | |
30667bf3 AM |
761 | #if R19_STUBS |
762 | #define LDW_R1_DLT LDW_R1_R19 | |
763 | #else | |
764 | #define LDW_R1_DLT LDW_R1_DP | |
765 | #endif | |
edd21aca | 766 | |
30667bf3 AM |
767 | static boolean |
768 | hppa_build_one_stub (gen_entry, in_arg) | |
769 | struct bfd_hash_entry *gen_entry; | |
770 | PTR in_arg; | |
771 | { | |
772 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
773 | struct bfd_link_info *info; | |
83c81bfe | 774 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
775 | asection *stub_sec; |
776 | bfd *stub_bfd; | |
777 | bfd_byte *loc; | |
778 | bfd_vma sym_value; | |
74d1c347 | 779 | bfd_vma insn; |
8dea1268 | 780 | bfd_vma off; |
74d1c347 | 781 | int val; |
30667bf3 | 782 | int size; |
edd21aca | 783 | |
30667bf3 AM |
784 | /* Massage our args to the form they really have. */ |
785 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
786 | info = (struct bfd_link_info *) in_arg; | |
787 | ||
83c81bfe | 788 | htab = hppa_link_hash_table (info); |
30667bf3 | 789 | stub_sec = stub_entry->stub_sec; |
edd21aca | 790 | |
30667bf3 | 791 | /* Make a note of the offset within the stubs for this entry. */ |
74d1c347 | 792 | stub_entry->stub_offset = stub_sec->_raw_size; |
30667bf3 | 793 | loc = stub_sec->contents + stub_entry->stub_offset; |
252b5132 | 794 | |
30667bf3 AM |
795 | stub_bfd = stub_sec->owner; |
796 | ||
797 | switch (stub_entry->stub_type) | |
798 | { | |
799 | case hppa_stub_long_branch: | |
800 | /* Create the long branch. A long branch is formed with "ldil" | |
801 | loading the upper bits of the target address into a register, | |
802 | then branching with "be" which adds in the lower bits. | |
803 | The "be" has its delay slot nullified. */ | |
804 | sym_value = (stub_entry->target_value | |
805 | + stub_entry->target_section->output_offset | |
806 | + stub_entry->target_section->output_section->vma); | |
807 | ||
74d1c347 AM |
808 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel); |
809 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); | |
30667bf3 AM |
810 | bfd_put_32 (stub_bfd, insn, loc); |
811 | ||
74d1c347 AM |
812 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel) >> 2; |
813 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); | |
30667bf3 AM |
814 | bfd_put_32 (stub_bfd, insn, loc + 4); |
815 | ||
30667bf3 | 816 | size = 8; |
edd21aca AM |
817 | break; |
818 | ||
30667bf3 AM |
819 | case hppa_stub_long_branch_shared: |
820 | /* Branches are relative. This is where we are going to. */ | |
821 | sym_value = (stub_entry->target_value | |
822 | + stub_entry->target_section->output_offset | |
823 | + stub_entry->target_section->output_section->vma); | |
824 | ||
825 | /* And this is where we are coming from, more or less. */ | |
826 | sym_value -= (stub_entry->stub_offset | |
827 | + stub_sec->output_offset | |
828 | + stub_sec->output_section->vma); | |
829 | ||
74d1c347 | 830 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 831 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 832 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
833 | bfd_put_32 (stub_bfd, insn, loc + 4); |
834 | ||
47d89dba | 835 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 836 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
837 | bfd_put_32 (stub_bfd, insn, loc + 8); |
838 | size = 12; | |
839 | break; | |
edd21aca | 840 | |
30667bf3 AM |
841 | case hppa_stub_import: |
842 | case hppa_stub_import_shared: | |
8dea1268 AM |
843 | off = stub_entry->h->elf.plt.offset; |
844 | if (off >= (bfd_vma) -2) | |
49e9d0d3 | 845 | abort (); |
8dea1268 AM |
846 | |
847 | off &= ~ (bfd_vma) 1; | |
848 | sym_value = (off | |
83c81bfe AM |
849 | + htab->splt->output_offset |
850 | + htab->splt->output_section->vma | |
851 | - elf_gp (htab->splt->output_section->owner)); | |
30667bf3 AM |
852 | |
853 | insn = ADDIL_DP; | |
854 | #if R19_STUBS | |
855 | if (stub_entry->stub_type == hppa_stub_import_shared) | |
856 | insn = ADDIL_R19; | |
857 | #endif | |
47d89dba | 858 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel), |
74d1c347 | 859 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 860 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 861 | |
47d89dba AM |
862 | /* It is critical to use lrsel/rrsel here because we are using |
863 | two different offsets (+0 and +4) from sym_value. If we use | |
864 | lsel/rsel then with unfortunate sym_values we will round | |
865 | sym_value+4 up to the next 2k block leading to a mis-match | |
866 | between the lsel and rsel value. */ | |
867 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel); | |
74d1c347 | 868 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 869 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 870 | |
83c81bfe | 871 | if (htab->multi_subspace) |
30667bf3 | 872 | { |
47d89dba | 873 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 874 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 875 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 876 | |
74d1c347 AM |
877 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
878 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
879 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
880 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 881 | |
30667bf3 AM |
882 | size = 28; |
883 | } | |
884 | else | |
885 | { | |
74d1c347 | 886 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 887 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 888 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 889 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 890 | |
30667bf3 AM |
891 | size = 16; |
892 | } | |
252b5132 | 893 | |
30667bf3 AM |
894 | if (!info->shared |
895 | && stub_entry->h != NULL | |
896 | && stub_entry->h->pic_call) | |
252b5132 | 897 | { |
30667bf3 AM |
898 | /* Build the .plt entry needed to call a PIC function from |
899 | statically linked code. We don't need any relocs. */ | |
900 | bfd *dynobj; | |
901 | struct elf32_hppa_link_hash_entry *eh; | |
902 | bfd_vma value; | |
252b5132 | 903 | |
ebe50bae | 904 | dynobj = htab->elf.dynobj; |
30667bf3 | 905 | eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h; |
252b5132 | 906 | |
49e9d0d3 AM |
907 | if (eh->elf.root.type != bfd_link_hash_defined |
908 | && eh->elf.root.type != bfd_link_hash_defweak) | |
909 | abort (); | |
252b5132 | 910 | |
30667bf3 AM |
911 | value = (eh->elf.root.u.def.value |
912 | + eh->elf.root.u.def.section->output_offset | |
913 | + eh->elf.root.u.def.section->output_section->vma); | |
252b5132 | 914 | |
30667bf3 | 915 | /* Fill in the entry in the procedure linkage table. |
252b5132 | 916 | |
30667bf3 | 917 | The format of a plt entry is |
74d1c347 AM |
918 | <funcaddr> |
919 | <__gp>. */ | |
252b5132 | 920 | |
83c81bfe AM |
921 | bfd_put_32 (htab->splt->owner, value, |
922 | htab->splt->contents + off); | |
923 | value = elf_gp (htab->splt->output_section->owner); | |
924 | bfd_put_32 (htab->splt->owner, value, | |
925 | htab->splt->contents + off + 4); | |
252b5132 | 926 | } |
30667bf3 | 927 | break; |
252b5132 | 928 | |
30667bf3 AM |
929 | case hppa_stub_export: |
930 | /* Branches are relative. This is where we are going to. */ | |
931 | sym_value = (stub_entry->target_value | |
932 | + stub_entry->target_section->output_offset | |
933 | + stub_entry->target_section->output_section->vma); | |
252b5132 | 934 | |
30667bf3 AM |
935 | /* And this is where we are coming from. */ |
936 | sym_value -= (stub_entry->stub_offset | |
937 | + stub_sec->output_offset | |
938 | + stub_sec->output_section->vma); | |
edd21aca | 939 | |
30667bf3 AM |
940 | if (sym_value - 8 + 0x40000 >= 0x80000) |
941 | { | |
edd21aca | 942 | (*_bfd_error_handler) |
30667bf3 | 943 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
8f615d07 | 944 | bfd_archive_filename (stub_entry->target_section->owner), |
30667bf3 AM |
945 | stub_sec->name, |
946 | (long) stub_entry->stub_offset, | |
947 | stub_entry->root.string); | |
948 | bfd_set_error (bfd_error_bad_value); | |
edd21aca | 949 | return false; |
252b5132 | 950 | } |
30667bf3 | 951 | |
74d1c347 AM |
952 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
953 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
30667bf3 AM |
954 | bfd_put_32 (stub_bfd, insn, loc); |
955 | ||
74d1c347 AM |
956 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
957 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
958 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
959 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
960 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
961 | |
962 | /* Point the function symbol at the stub. */ | |
963 | stub_entry->h->elf.root.u.def.section = stub_sec; | |
74d1c347 | 964 | stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size; |
30667bf3 AM |
965 | |
966 | size = 24; | |
967 | break; | |
968 | ||
969 | default: | |
970 | BFD_FAIL (); | |
971 | return false; | |
252b5132 RH |
972 | } |
973 | ||
74d1c347 | 974 | stub_sec->_raw_size += size; |
252b5132 RH |
975 | return true; |
976 | } | |
977 | ||
30667bf3 AM |
978 | #undef LDIL_R1 |
979 | #undef BE_SR4_R1 | |
980 | #undef BL_R1 | |
981 | #undef ADDIL_R1 | |
982 | #undef DEPI_R1 | |
983 | #undef ADDIL_DP | |
984 | #undef LDW_R1_R21 | |
985 | #undef LDW_R1_DLT | |
986 | #undef LDW_R1_R19 | |
987 | #undef ADDIL_R19 | |
988 | #undef LDW_R1_DP | |
989 | #undef LDSID_R21_R1 | |
990 | #undef MTSP_R1 | |
991 | #undef BE_SR0_R21 | |
992 | #undef STW_RP | |
993 | #undef BV_R0_R21 | |
994 | #undef BL_RP | |
995 | #undef NOP | |
996 | #undef LDW_RP | |
997 | #undef LDSID_RP_R1 | |
998 | #undef BE_SR0_RP | |
252b5132 | 999 | |
30667bf3 AM |
1000 | /* As above, but don't actually build the stub. Just bump offset so |
1001 | we know stub section sizes. */ | |
1002 | ||
1003 | static boolean | |
1004 | hppa_size_one_stub (gen_entry, in_arg) | |
1005 | struct bfd_hash_entry *gen_entry; | |
1006 | PTR in_arg; | |
252b5132 | 1007 | { |
30667bf3 | 1008 | struct elf32_hppa_stub_hash_entry *stub_entry; |
83c81bfe | 1009 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1010 | int size; |
1011 | ||
1012 | /* Massage our args to the form they really have. */ | |
1013 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
83c81bfe | 1014 | htab = (struct elf32_hppa_link_hash_table *) in_arg; |
30667bf3 AM |
1015 | |
1016 | if (stub_entry->stub_type == hppa_stub_long_branch) | |
98ceb8ce | 1017 | size = 8; |
30667bf3 AM |
1018 | else if (stub_entry->stub_type == hppa_stub_long_branch_shared) |
1019 | size = 12; | |
1020 | else if (stub_entry->stub_type == hppa_stub_export) | |
1021 | size = 24; | |
74d1c347 | 1022 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 1023 | { |
83c81bfe | 1024 | if (htab->multi_subspace) |
30667bf3 AM |
1025 | size = 28; |
1026 | else | |
1027 | size = 16; | |
1028 | } | |
252b5132 | 1029 | |
74d1c347 | 1030 | stub_entry->stub_sec->_raw_size += size; |
30667bf3 AM |
1031 | return true; |
1032 | } | |
252b5132 | 1033 | |
30667bf3 AM |
1034 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
1035 | Additionally we set the default architecture and machine. */ | |
1036 | ||
1037 | static boolean | |
1038 | elf32_hppa_object_p (abfd) | |
1039 | bfd *abfd; | |
1040 | { | |
24a5e751 L |
1041 | Elf_Internal_Ehdr * i_ehdrp; |
1042 | unsigned int flags; | |
252b5132 | 1043 | |
24a5e751 L |
1044 | i_ehdrp = elf_elfheader (abfd); |
1045 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
1046 | { | |
1047 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX) | |
1048 | return false; | |
1049 | } | |
1050 | else | |
1051 | { | |
1052 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
1053 | return false; | |
1054 | } | |
1055 | ||
1056 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
1057 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
1058 | { | |
1059 | case EFA_PARISC_1_0: | |
1060 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
1061 | case EFA_PARISC_1_1: | |
1062 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
1063 | case EFA_PARISC_2_0: | |
1064 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
1065 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
1066 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
1067 | } | |
1068 | return true; | |
252b5132 RH |
1069 | } |
1070 | ||
252b5132 RH |
1071 | /* Undo the generic ELF code's subtraction of section->vma from the |
1072 | value of each external symbol. */ | |
1073 | ||
1074 | static boolean | |
1075 | elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
5f771d47 ILT |
1076 | bfd *abfd ATTRIBUTE_UNUSED; |
1077 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1078 | const Elf_Internal_Sym *sym ATTRIBUTE_UNUSED; | |
1079 | const char **namep ATTRIBUTE_UNUSED; | |
1080 | flagword *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
1081 | asection **secp; |
1082 | bfd_vma *valp; | |
1083 | { | |
1084 | *valp += (*secp)->vma; | |
1085 | return true; | |
1086 | } | |
1087 | ||
30667bf3 AM |
1088 | /* Create the .plt and .got sections, and set up our hash table |
1089 | short-cuts to various dynamic sections. */ | |
1090 | ||
1091 | static boolean | |
1092 | elf32_hppa_create_dynamic_sections (abfd, info) | |
1093 | bfd *abfd; | |
1094 | struct bfd_link_info *info; | |
252b5132 | 1095 | { |
83c81bfe | 1096 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 1097 | |
30667bf3 | 1098 | /* Don't try to create the .plt and .got twice. */ |
83c81bfe AM |
1099 | htab = hppa_link_hash_table (info); |
1100 | if (htab->splt != NULL) | |
30667bf3 | 1101 | return true; |
edd21aca | 1102 | |
30667bf3 AM |
1103 | /* Call the generic code to do most of the work. */ |
1104 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
1105 | return false; | |
252b5132 | 1106 | |
83c81bfe AM |
1107 | htab->splt = bfd_get_section_by_name (abfd, ".plt"); |
1108 | htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
30667bf3 | 1109 | |
83c81bfe AM |
1110 | htab->sgot = bfd_get_section_by_name (abfd, ".got"); |
1111 | htab->srelgot = bfd_make_section (abfd, ".rela.got"); | |
1112 | if (htab->srelgot == NULL | |
1113 | || ! bfd_set_section_flags (abfd, htab->srelgot, | |
30667bf3 AM |
1114 | (SEC_ALLOC |
1115 | | SEC_LOAD | |
1116 | | SEC_HAS_CONTENTS | |
1117 | | SEC_IN_MEMORY | |
1118 | | SEC_LINKER_CREATED | |
1119 | | SEC_READONLY)) | |
83c81bfe | 1120 | || ! bfd_set_section_alignment (abfd, htab->srelgot, 2)) |
30667bf3 | 1121 | return false; |
edd21aca | 1122 | |
83c81bfe AM |
1123 | htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
1124 | htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
30667bf3 AM |
1125 | |
1126 | return true; | |
1127 | } | |
1128 | ||
ebe50bae AM |
1129 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1130 | ||
51b64d56 | 1131 | static void |
ebe50bae AM |
1132 | elf32_hppa_copy_indirect_symbol (dir, ind) |
1133 | struct elf_link_hash_entry *dir, *ind; | |
1134 | { | |
1135 | struct elf32_hppa_link_hash_entry *edir, *eind; | |
1136 | ||
1137 | edir = (struct elf32_hppa_link_hash_entry *) dir; | |
1138 | eind = (struct elf32_hppa_link_hash_entry *) ind; | |
1139 | ||
bbd7ec4a | 1140 | if (eind->dyn_relocs != NULL) |
ebe50bae | 1141 | { |
bbd7ec4a AM |
1142 | if (edir->dyn_relocs != NULL) |
1143 | { | |
1144 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1145 | struct elf32_hppa_dyn_reloc_entry *p; | |
1146 | ||
1e370bd2 | 1147 | if (ind->root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
1148 | abort (); |
1149 | ||
1150 | /* Add reloc counts against the weak sym to the strong sym | |
1151 | list. Merge any entries against the same section. */ | |
1152 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
1153 | { | |
1154 | struct elf32_hppa_dyn_reloc_entry *q; | |
1155 | ||
1156 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
1157 | if (q->sec == p->sec) | |
1158 | { | |
1159 | #if RELATIVE_DYNRELOCS | |
1160 | q->relative_count += p->relative_count; | |
1161 | #endif | |
1162 | q->count += p->count; | |
1163 | *pp = p->next; | |
1164 | break; | |
1165 | } | |
1166 | if (q == NULL) | |
1167 | pp = &p->next; | |
1168 | } | |
1169 | *pp = edir->dyn_relocs; | |
1170 | } | |
1171 | ||
ebe50bae AM |
1172 | edir->dyn_relocs = eind->dyn_relocs; |
1173 | eind->dyn_relocs = NULL; | |
1174 | } | |
ebe50bae AM |
1175 | |
1176 | _bfd_elf_link_hash_copy_indirect (dir, ind); | |
1177 | } | |
1178 | ||
30667bf3 | 1179 | /* Look through the relocs for a section during the first phase, and |
3ac8354b AM |
1180 | calculate needed space in the global offset table, procedure linkage |
1181 | table, and dynamic reloc sections. At this point we haven't | |
1182 | necessarily read all the input files. */ | |
252b5132 RH |
1183 | |
1184 | static boolean | |
30667bf3 AM |
1185 | elf32_hppa_check_relocs (abfd, info, sec, relocs) |
1186 | bfd *abfd; | |
1187 | struct bfd_link_info *info; | |
1188 | asection *sec; | |
1189 | const Elf_Internal_Rela *relocs; | |
252b5132 | 1190 | { |
30667bf3 AM |
1191 | Elf_Internal_Shdr *symtab_hdr; |
1192 | struct elf_link_hash_entry **sym_hashes; | |
30667bf3 AM |
1193 | const Elf_Internal_Rela *rel; |
1194 | const Elf_Internal_Rela *rel_end; | |
83c81bfe | 1195 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1196 | asection *sreloc; |
1197 | asection *stubreloc; | |
1198 | ||
1199 | if (info->relocateable) | |
1200 | return true; | |
1201 | ||
83c81bfe | 1202 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1203 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1204 | sym_hashes = elf_sym_hashes (abfd); | |
30667bf3 AM |
1205 | sreloc = NULL; |
1206 | stubreloc = NULL; | |
1207 | ||
1208 | rel_end = relocs + sec->reloc_count; | |
1209 | for (rel = relocs; rel < rel_end; rel++) | |
1210 | { | |
1211 | enum { | |
1212 | NEED_GOT = 1, | |
1213 | NEED_PLT = 2, | |
1214 | NEED_DYNREL = 4, | |
98ceb8ce | 1215 | PLT_PLABEL = 8 |
30667bf3 | 1216 | }; |
edd21aca | 1217 | |
30667bf3 AM |
1218 | unsigned int r_symndx, r_type; |
1219 | struct elf32_hppa_link_hash_entry *h; | |
1220 | int need_entry; | |
252b5132 | 1221 | |
30667bf3 | 1222 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 | 1223 | |
30667bf3 AM |
1224 | if (r_symndx < symtab_hdr->sh_info) |
1225 | h = NULL; | |
1226 | else | |
1227 | h = ((struct elf32_hppa_link_hash_entry *) | |
1228 | sym_hashes[r_symndx - symtab_hdr->sh_info]); | |
252b5132 | 1229 | |
30667bf3 | 1230 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 | 1231 | |
30667bf3 AM |
1232 | switch (r_type) |
1233 | { | |
1234 | case R_PARISC_DLTIND14F: | |
1235 | case R_PARISC_DLTIND14R: | |
1236 | case R_PARISC_DLTIND21L: | |
1237 | /* This symbol requires a global offset table entry. */ | |
1238 | need_entry = NEED_GOT; | |
1239 | ||
1240 | /* Mark this section as containing PIC code. */ | |
1241 | sec->flags |= SEC_HAS_GOT_REF; | |
1242 | break; | |
1243 | ||
1244 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1245 | case R_PARISC_PLABEL21L: | |
1246 | case R_PARISC_PLABEL32: | |
74d1c347 | 1247 | /* If the addend is non-zero, we break badly. */ |
49e9d0d3 AM |
1248 | if (rel->r_addend != 0) |
1249 | abort (); | |
74d1c347 AM |
1250 | |
1251 | /* If we are creating a shared library, then we need to | |
1252 | create a PLT entry for all PLABELs, because PLABELs with | |
1253 | local symbols may be passed via a pointer to another | |
1254 | object. Additionally, output a dynamic relocation | |
4dc86686 AM |
1255 | pointing to the PLT entry. |
1256 | For executables, the original 32-bit ABI allowed two | |
1257 | different styles of PLABELs (function pointers): For | |
1258 | global functions, the PLABEL word points into the .plt | |
1259 | two bytes past a (function address, gp) pair, and for | |
1260 | local functions the PLABEL points directly at the | |
1261 | function. The magic +2 for the first type allows us to | |
1262 | differentiate between the two. As you can imagine, this | |
1263 | is a real pain when it comes to generating code to call | |
1264 | functions indirectly or to compare function pointers. | |
1265 | We avoid the mess by always pointing a PLABEL into the | |
1266 | .plt, even for local functions. */ | |
74d1c347 | 1267 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1268 | break; |
1269 | ||
1270 | case R_PARISC_PCREL12F: | |
83c81bfe | 1271 | htab->has_12bit_branch = 1; |
47d89dba | 1272 | /* Fall thru. */ |
30667bf3 AM |
1273 | case R_PARISC_PCREL17C: |
1274 | case R_PARISC_PCREL17F: | |
83c81bfe | 1275 | htab->has_17bit_branch = 1; |
47d89dba | 1276 | /* Fall thru. */ |
30667bf3 | 1277 | case R_PARISC_PCREL22F: |
47d89dba AM |
1278 | /* Function calls might need to go through the .plt, and |
1279 | might require long branch stubs. */ | |
30667bf3 AM |
1280 | if (h == NULL) |
1281 | { | |
1282 | /* We know local syms won't need a .plt entry, and if | |
1283 | they need a long branch stub we can't guarantee that | |
1284 | we can reach the stub. So just flag an error later | |
1285 | if we're doing a shared link and find we need a long | |
1286 | branch stub. */ | |
1287 | continue; | |
1288 | } | |
1289 | else | |
1290 | { | |
1291 | /* Global symbols will need a .plt entry if they remain | |
1292 | global, and in most cases won't need a long branch | |
1293 | stub. Unfortunately, we have to cater for the case | |
1294 | where a symbol is forced local by versioning, or due | |
1295 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1296 | need_entry = NEED_PLT; |
4dc86686 | 1297 | if (h->elf.type == STT_PARISC_MILLI) |
98ceb8ce | 1298 | need_entry = 0; |
30667bf3 AM |
1299 | } |
1300 | break; | |
1301 | ||
1302 | case R_PARISC_SEGBASE: /* Used to set segment base. */ | |
c46b7515 | 1303 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1304 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1305 | case R_PARISC_PCREL14R: | |
1306 | case R_PARISC_PCREL17R: /* External branches. */ | |
1307 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
1308 | /* We don't need to propagate the relocation if linking a | |
1309 | shared object since these are section relative. */ | |
1310 | continue; | |
1311 | ||
1312 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1313 | case R_PARISC_DPREL14R: | |
1314 | case R_PARISC_DPREL21L: | |
1315 | if (info->shared) | |
1316 | { | |
1317 | (*_bfd_error_handler) | |
1318 | (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1319 | bfd_archive_filename (abfd), |
30667bf3 AM |
1320 | elf_hppa_howto_table[r_type].name); |
1321 | bfd_set_error (bfd_error_bad_value); | |
1322 | return false; | |
1323 | } | |
1324 | /* Fall through. */ | |
1325 | ||
1326 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1327 | case R_PARISC_DIR17R: | |
47d89dba AM |
1328 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1329 | case R_PARISC_DIR14R: | |
30667bf3 AM |
1330 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
1331 | #if 1 | |
1332 | /* Help debug shared library creation. Any of the above | |
1333 | relocs can be used in shared libs, but they may cause | |
1334 | pages to become unshared. */ | |
1335 | if (info->shared) | |
1336 | { | |
1337 | (*_bfd_error_handler) | |
1338 | (_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1339 | bfd_archive_filename (abfd), |
30667bf3 AM |
1340 | elf_hppa_howto_table[r_type].name); |
1341 | } | |
1342 | /* Fall through. */ | |
1343 | #endif | |
1344 | ||
c46b7515 | 1345 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1346 | /* We may want to output a dynamic relocation later. */ |
1347 | need_entry = NEED_DYNREL; | |
1348 | break; | |
1349 | ||
1350 | /* This relocation describes the C++ object vtable hierarchy. | |
1351 | Reconstruct it for later use during GC. */ | |
1352 | case R_PARISC_GNU_VTINHERIT: | |
1353 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, | |
1354 | &h->elf, rel->r_offset)) | |
1355 | return false; | |
1356 | continue; | |
1357 | ||
1358 | /* This relocation describes which C++ vtable entries are actually | |
1359 | used. Record for later use during GC. */ | |
1360 | case R_PARISC_GNU_VTENTRY: | |
1361 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, | |
36605136 | 1362 | &h->elf, rel->r_addend)) |
30667bf3 AM |
1363 | return false; |
1364 | continue; | |
1365 | ||
1366 | default: | |
1367 | continue; | |
1368 | } | |
1369 | ||
1370 | /* Now carry out our orders. */ | |
1371 | if (need_entry & NEED_GOT) | |
1372 | { | |
1373 | /* Allocate space for a GOT entry, as well as a dynamic | |
25f72752 | 1374 | relocation for this entry. */ |
83c81bfe | 1375 | if (htab->sgot == NULL) |
30667bf3 | 1376 | { |
3ac8354b AM |
1377 | if (htab->elf.dynobj == NULL) |
1378 | htab->elf.dynobj = abfd; | |
1379 | if (!elf32_hppa_create_dynamic_sections (htab->elf.dynobj, info)) | |
30667bf3 AM |
1380 | return false; |
1381 | } | |
1382 | ||
1383 | if (h != NULL) | |
1384 | { | |
51b64d56 | 1385 | h->elf.got.refcount += 1; |
30667bf3 AM |
1386 | } |
1387 | else | |
1388 | { | |
3ac8354b AM |
1389 | bfd_signed_vma *local_got_refcounts; |
1390 | ||
30667bf3 | 1391 | /* This is a global offset table entry for a local symbol. */ |
3ac8354b | 1392 | local_got_refcounts = elf_local_got_refcounts (abfd); |
30667bf3 AM |
1393 | if (local_got_refcounts == NULL) |
1394 | { | |
dc810e39 | 1395 | bfd_size_type size; |
30667bf3 | 1396 | |
74d1c347 AM |
1397 | /* Allocate space for local got offsets and local |
1398 | plt offsets. Done this way to save polluting | |
1399 | elf_obj_tdata with another target specific | |
1400 | pointer. */ | |
dc810e39 AM |
1401 | size = symtab_hdr->sh_info; |
1402 | size *= 2 * sizeof (bfd_signed_vma); | |
30667bf3 | 1403 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1404 | bfd_zalloc (abfd, size)); |
30667bf3 AM |
1405 | if (local_got_refcounts == NULL) |
1406 | return false; | |
1407 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
30667bf3 | 1408 | } |
ebe50bae | 1409 | local_got_refcounts[r_symndx] += 1; |
30667bf3 AM |
1410 | } |
1411 | } | |
1412 | ||
1413 | if (need_entry & NEED_PLT) | |
1414 | { | |
1415 | /* If we are creating a shared library, and this is a reloc | |
1416 | against a weak symbol or a global symbol in a dynamic | |
1417 | object, then we will be creating an import stub and a | |
1418 | .plt entry for the symbol. Similarly, on a normal link | |
1419 | to symbols defined in a dynamic object we'll need the | |
1420 | import stub and a .plt entry. We don't know yet whether | |
1421 | the symbol is defined or not, so make an entry anyway and | |
1422 | clean up later in adjust_dynamic_symbol. */ | |
1423 | if ((sec->flags & SEC_ALLOC) != 0) | |
1424 | { | |
74d1c347 | 1425 | if (h != NULL) |
30667bf3 | 1426 | { |
51b64d56 AM |
1427 | h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
1428 | h->elf.plt.refcount += 1; | |
74d1c347 | 1429 | |
36605136 AM |
1430 | /* If this .plt entry is for a plabel, mark it so |
1431 | that adjust_dynamic_symbol will keep the entry | |
1432 | even if it appears to be local. */ | |
74d1c347 AM |
1433 | if (need_entry & PLT_PLABEL) |
1434 | h->plabel = 1; | |
1435 | } | |
1436 | else if (need_entry & PLT_PLABEL) | |
1437 | { | |
3ac8354b | 1438 | bfd_signed_vma *local_got_refcounts; |
68fb2e56 | 1439 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 | 1440 | |
3ac8354b | 1441 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1442 | if (local_got_refcounts == NULL) |
1443 | { | |
dc810e39 | 1444 | bfd_size_type size; |
74d1c347 AM |
1445 | |
1446 | /* Allocate space for local got offsets and local | |
1447 | plt offsets. */ | |
dc810e39 AM |
1448 | size = symtab_hdr->sh_info; |
1449 | size *= 2 * sizeof (bfd_signed_vma); | |
74d1c347 | 1450 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1451 | bfd_zalloc (abfd, size)); |
74d1c347 AM |
1452 | if (local_got_refcounts == NULL) |
1453 | return false; | |
1454 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
74d1c347 | 1455 | } |
68fb2e56 AM |
1456 | local_plt_refcounts = (local_got_refcounts |
1457 | + symtab_hdr->sh_info); | |
ebe50bae | 1458 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1459 | } |
30667bf3 AM |
1460 | } |
1461 | } | |
1462 | ||
98ceb8ce | 1463 | if (need_entry & NEED_DYNREL) |
30667bf3 AM |
1464 | { |
1465 | /* Flag this symbol as having a non-got, non-plt reference | |
1466 | so that we generate copy relocs if it turns out to be | |
1467 | dynamic. */ | |
ebe50bae | 1468 | if (h != NULL && !info->shared) |
30667bf3 AM |
1469 | h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; |
1470 | ||
1471 | /* If we are creating a shared library then we need to copy | |
1472 | the reloc into the shared library. However, if we are | |
1473 | linking with -Bsymbolic, we need only copy absolute | |
1474 | relocs or relocs against symbols that are not defined in | |
1475 | an object we are including in the link. PC- or DP- or | |
1476 | DLT-relative relocs against any local sym or global sym | |
1477 | with DEF_REGULAR set, can be discarded. At this point we | |
1478 | have not seen all the input files, so it is possible that | |
1479 | DEF_REGULAR is not set now but will be set later (it is | |
1480 | never cleared). We account for that possibility below by | |
98ceb8ce | 1481 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1482 | hash table entry. |
1483 | ||
1484 | A similar situation to the -Bsymbolic case occurs when | |
1485 | creating shared libraries and symbol visibility changes | |
1486 | render the symbol local. | |
1487 | ||
1488 | As it turns out, all the relocs we will be creating here | |
1489 | are absolute, so we cannot remove them on -Bsymbolic | |
1490 | links or visibility changes anyway. A STUB_REL reloc | |
1491 | is absolute too, as in that case it is the reloc in the | |
1492 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1493 | reloc in the branch. |
1494 | ||
1495 | If on the other hand, we are creating an executable, we | |
1496 | may need to keep relocations for symbols satisfied by a | |
1497 | dynamic library if we manage to avoid copy relocs for the | |
1498 | symbol. */ | |
446f2863 AM |
1499 | if ((info->shared |
1500 | && (sec->flags & SEC_ALLOC) != 0 | |
1501 | && (IS_ABSOLUTE_RELOC (r_type) | |
1502 | || (h != NULL | |
1503 | && (!info->symbolic | |
1504 | || h->elf.root.type == bfd_link_hash_defweak | |
1505 | || (h->elf.elf_link_hash_flags | |
1506 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1507 | || (!info->shared | |
1508 | && (sec->flags & SEC_ALLOC) != 0 | |
1509 | && h != NULL | |
446f2863 AM |
1510 | && (h->elf.root.type == bfd_link_hash_defweak |
1511 | || (h->elf.elf_link_hash_flags | |
1512 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
30667bf3 | 1513 | { |
30667bf3 AM |
1514 | /* Create a reloc section in dynobj and make room for |
1515 | this reloc. */ | |
98ceb8ce | 1516 | if (sreloc == NULL) |
30667bf3 AM |
1517 | { |
1518 | char *name; | |
3ac8354b | 1519 | bfd *dynobj; |
30667bf3 | 1520 | |
98ceb8ce AM |
1521 | name = (bfd_elf_string_from_elf_section |
1522 | (abfd, | |
1523 | elf_elfheader (abfd)->e_shstrndx, | |
1524 | elf_section_data (sec)->rel_hdr.sh_name)); | |
30667bf3 AM |
1525 | if (name == NULL) |
1526 | { | |
1527 | (*_bfd_error_handler) | |
1528 | (_("Could not find relocation section for %s"), | |
1529 | sec->name); | |
1530 | bfd_set_error (bfd_error_bad_value); | |
1531 | return false; | |
1532 | } | |
1533 | ||
3ac8354b AM |
1534 | if (htab->elf.dynobj == NULL) |
1535 | htab->elf.dynobj = abfd; | |
1536 | ||
1537 | dynobj = htab->elf.dynobj; | |
98ceb8ce AM |
1538 | sreloc = bfd_get_section_by_name (dynobj, name); |
1539 | if (sreloc == NULL) | |
30667bf3 AM |
1540 | { |
1541 | flagword flags; | |
1542 | ||
98ceb8ce | 1543 | sreloc = bfd_make_section (dynobj, name); |
30667bf3 AM |
1544 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1545 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1546 | if ((sec->flags & SEC_ALLOC) != 0) | |
1547 | flags |= SEC_ALLOC | SEC_LOAD; | |
98ceb8ce AM |
1548 | if (sreloc == NULL |
1549 | || !bfd_set_section_flags (dynobj, sreloc, flags) | |
1550 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) | |
30667bf3 AM |
1551 | return false; |
1552 | } | |
30667bf3 | 1553 | |
98ceb8ce | 1554 | elf_section_data (sec)->sreloc = sreloc; |
30667bf3 AM |
1555 | } |
1556 | ||
98ceb8ce AM |
1557 | /* If this is a global symbol, we count the number of |
1558 | relocations we need for this symbol. */ | |
1559 | if (h != NULL) | |
30667bf3 | 1560 | { |
98ceb8ce | 1561 | struct elf32_hppa_dyn_reloc_entry *p; |
30667bf3 | 1562 | |
98ceb8ce AM |
1563 | p = h->dyn_relocs; |
1564 | if (p == NULL || p->sec != sec) | |
30667bf3 | 1565 | { |
98ceb8ce | 1566 | p = ((struct elf32_hppa_dyn_reloc_entry *) |
3ac8354b AM |
1567 | bfd_alloc (htab->elf.dynobj, |
1568 | (bfd_size_type) sizeof *p)); | |
30667bf3 | 1569 | if (p == NULL) |
98ceb8ce AM |
1570 | return false; |
1571 | p->next = h->dyn_relocs; | |
1572 | h->dyn_relocs = p; | |
1573 | p->sec = sec; | |
1574 | p->count = 0; | |
1575 | #if RELATIVE_DYNRELOCS | |
1576 | p->relative_count = 0; | |
1577 | #endif | |
30667bf3 | 1578 | } |
98ceb8ce AM |
1579 | |
1580 | p->count += 1; | |
1581 | #if RELATIVE_DYNRELOCS | |
1582 | if (!IS_ABSOLUTE_RELOC (rtype)) | |
1583 | p->relative_count += 1; | |
1584 | #endif | |
1585 | } | |
1586 | else | |
1587 | { | |
1588 | /* Track dynamic relocs needed for local syms too. */ | |
1589 | elf_section_data (sec)->local_dynrel += 1; | |
30667bf3 AM |
1590 | } |
1591 | } | |
1592 | } | |
1593 | } | |
edd21aca AM |
1594 | |
1595 | return true; | |
1596 | } | |
1597 | ||
30667bf3 AM |
1598 | /* Return the section that should be marked against garbage collection |
1599 | for a given relocation. */ | |
1600 | ||
1601 | static asection * | |
1602 | elf32_hppa_gc_mark_hook (abfd, info, rel, h, sym) | |
1603 | bfd *abfd; | |
1604 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1605 | Elf_Internal_Rela *rel; | |
1606 | struct elf_link_hash_entry *h; | |
1607 | Elf_Internal_Sym *sym; | |
1608 | { | |
1609 | if (h != NULL) | |
1610 | { | |
1611 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1612 | { | |
1613 | case R_PARISC_GNU_VTINHERIT: | |
1614 | case R_PARISC_GNU_VTENTRY: | |
1615 | break; | |
1616 | ||
1617 | default: | |
1618 | switch (h->root.type) | |
1619 | { | |
1620 | case bfd_link_hash_defined: | |
1621 | case bfd_link_hash_defweak: | |
1622 | return h->root.u.def.section; | |
1623 | ||
1624 | case bfd_link_hash_common: | |
1625 | return h->root.u.c.p->section; | |
1626 | ||
1627 | default: | |
1628 | break; | |
1629 | } | |
1630 | } | |
1631 | } | |
1632 | else | |
1633 | { | |
1634 | if (!(elf_bad_symtab (abfd) | |
1635 | && ELF_ST_BIND (sym->st_info) != STB_LOCAL) | |
1636 | && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) | |
1637 | && sym->st_shndx != SHN_COMMON)) | |
1638 | { | |
1639 | return bfd_section_from_elf_index (abfd, sym->st_shndx); | |
1640 | } | |
1641 | } | |
1642 | ||
1643 | return NULL; | |
1644 | } | |
1645 | ||
30667bf3 AM |
1646 | /* Update the got and plt entry reference counts for the section being |
1647 | removed. */ | |
edd21aca AM |
1648 | |
1649 | static boolean | |
30667bf3 AM |
1650 | elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs) |
1651 | bfd *abfd; | |
1652 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1653 | asection *sec; | |
1654 | const Elf_Internal_Rela *relocs; | |
edd21aca | 1655 | { |
30667bf3 AM |
1656 | Elf_Internal_Shdr *symtab_hdr; |
1657 | struct elf_link_hash_entry **sym_hashes; | |
1658 | bfd_signed_vma *local_got_refcounts; | |
74d1c347 | 1659 | bfd_signed_vma *local_plt_refcounts; |
30667bf3 AM |
1660 | const Elf_Internal_Rela *rel, *relend; |
1661 | unsigned long r_symndx; | |
1662 | struct elf_link_hash_entry *h; | |
83c81bfe | 1663 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 1664 | bfd *dynobj; |
30667bf3 | 1665 | |
98ceb8ce AM |
1666 | elf_section_data (sec)->local_dynrel = 0; |
1667 | ||
30667bf3 AM |
1668 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1669 | sym_hashes = elf_sym_hashes (abfd); | |
1670 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
74d1c347 AM |
1671 | local_plt_refcounts = local_got_refcounts; |
1672 | if (local_plt_refcounts != NULL) | |
1673 | local_plt_refcounts += symtab_hdr->sh_info; | |
83c81bfe | 1674 | htab = hppa_link_hash_table (info); |
ebe50bae | 1675 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
1676 | if (dynobj == NULL) |
1677 | return true; | |
1678 | ||
30667bf3 AM |
1679 | relend = relocs + sec->reloc_count; |
1680 | for (rel = relocs; rel < relend; rel++) | |
1681 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1682 | { | |
1683 | case R_PARISC_DLTIND14F: | |
1684 | case R_PARISC_DLTIND14R: | |
1685 | case R_PARISC_DLTIND21L: | |
1686 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1687 | if (r_symndx >= symtab_hdr->sh_info) | |
1688 | { | |
1689 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1690 | if (h->got.refcount > 0) | |
4dc86686 | 1691 | h->got.refcount -= 1; |
30667bf3 AM |
1692 | } |
1693 | else if (local_got_refcounts != NULL) | |
1694 | { | |
1695 | if (local_got_refcounts[r_symndx] > 0) | |
4dc86686 | 1696 | local_got_refcounts[r_symndx] -= 1; |
30667bf3 AM |
1697 | } |
1698 | break; | |
edd21aca | 1699 | |
30667bf3 AM |
1700 | case R_PARISC_PCREL12F: |
1701 | case R_PARISC_PCREL17C: | |
1702 | case R_PARISC_PCREL17F: | |
1703 | case R_PARISC_PCREL22F: | |
1704 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1705 | if (r_symndx >= symtab_hdr->sh_info) | |
1706 | { | |
1707 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1708 | if (h->plt.refcount > 0) | |
1709 | h->plt.refcount -= 1; | |
1710 | } | |
1711 | break; | |
edd21aca | 1712 | |
74d1c347 AM |
1713 | case R_PARISC_PLABEL14R: |
1714 | case R_PARISC_PLABEL21L: | |
1715 | case R_PARISC_PLABEL32: | |
1716 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1717 | if (r_symndx >= symtab_hdr->sh_info) | |
1718 | { | |
98ceb8ce AM |
1719 | struct elf32_hppa_link_hash_entry *eh; |
1720 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1721 | struct elf32_hppa_dyn_reloc_entry *p; | |
1722 | ||
74d1c347 | 1723 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
98ceb8ce | 1724 | |
74d1c347 AM |
1725 | if (h->plt.refcount > 0) |
1726 | h->plt.refcount -= 1; | |
98ceb8ce AM |
1727 | |
1728 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1729 | ||
1730 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1731 | if (p->sec == sec) | |
1732 | { | |
1733 | #if RELATIVE_DYNRELOCS | |
1734 | if (!IS_ABSOLUTE_RELOC (rtype)) | |
1735 | p->relative_count -= 1; | |
1736 | #endif | |
1737 | p->count -= 1; | |
1738 | if (p->count == 0) | |
1739 | *pp = p->next; | |
1740 | break; | |
1741 | } | |
74d1c347 AM |
1742 | } |
1743 | else if (local_plt_refcounts != NULL) | |
1744 | { | |
1745 | if (local_plt_refcounts[r_symndx] > 0) | |
1746 | local_plt_refcounts[r_symndx] -= 1; | |
1747 | } | |
1748 | break; | |
1749 | ||
98ceb8ce AM |
1750 | case R_PARISC_DIR32: |
1751 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1752 | if (r_symndx >= symtab_hdr->sh_info) | |
1753 | { | |
1754 | struct elf32_hppa_link_hash_entry *eh; | |
1755 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1756 | struct elf32_hppa_dyn_reloc_entry *p; | |
1757 | ||
1758 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1759 | ||
1760 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1761 | ||
1762 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1763 | if (p->sec == sec) | |
1764 | { | |
1765 | #if RELATIVE_DYNRELOCS | |
1766 | if (!IS_ABSOLUTE_RELOC (R_PARISC_DIR32)) | |
1767 | p->relative_count -= 1; | |
1768 | #endif | |
1769 | p->count -= 1; | |
1770 | if (p->count == 0) | |
1771 | *pp = p->next; | |
1772 | break; | |
1773 | } | |
1774 | } | |
1775 | break; | |
1776 | ||
30667bf3 AM |
1777 | default: |
1778 | break; | |
1779 | } | |
252b5132 | 1780 | |
252b5132 RH |
1781 | return true; |
1782 | } | |
1783 | ||
74d1c347 AM |
1784 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1785 | plabels. */ | |
1786 | ||
1787 | static void | |
1788 | elf32_hppa_hide_symbol (info, h) | |
1789 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1790 | struct elf_link_hash_entry *h; | |
1791 | { | |
5fba655a L |
1792 | if ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0) |
1793 | h->dynindx = -1; | |
74d1c347 AM |
1794 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel) |
1795 | { | |
1796 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1797 | h->plt.offset = (bfd_vma) -1; | |
1798 | } | |
1799 | } | |
1800 | ||
4dc86686 AM |
1801 | /* This is the condition under which elf32_hppa_finish_dynamic_symbol |
1802 | will be called from elflink.h. If elflink.h doesn't call our | |
1803 | finish_dynamic_symbol routine, we'll need to do something about | |
1804 | initializing any .plt and .got entries in elf32_hppa_relocate_section. */ | |
1805 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
1806 | ((DYN) \ | |
1807 | && ((INFO)->shared \ | |
1808 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
1809 | && ((H)->dynindx != -1 \ | |
1810 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
1811 | ||
30667bf3 AM |
1812 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1813 | regular object. The current definition is in some section of the | |
1814 | dynamic object, but we're not including those sections. We have to | |
1815 | change the definition to something the rest of the link can | |
1816 | understand. */ | |
252b5132 | 1817 | |
30667bf3 AM |
1818 | static boolean |
1819 | elf32_hppa_adjust_dynamic_symbol (info, h) | |
1820 | struct bfd_link_info *info; | |
1821 | struct elf_link_hash_entry *h; | |
252b5132 | 1822 | { |
83c81bfe | 1823 | struct elf32_hppa_link_hash_table *htab; |
ebe50bae AM |
1824 | struct elf32_hppa_link_hash_entry *eh; |
1825 | struct elf32_hppa_dyn_reloc_entry *p; | |
30667bf3 | 1826 | asection *s; |
3ac8354b | 1827 | unsigned int power_of_two; |
30667bf3 AM |
1828 | |
1829 | /* If this is a function, put it in the procedure linkage table. We | |
1830 | will fill in the contents of the procedure linkage table later, | |
1831 | when we know the address of the .got section. */ | |
1832 | if (h->type == STT_FUNC | |
1833 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1834 | { | |
12cca0d2 AM |
1835 | if (!info->shared |
1836 | && h->plt.refcount > 0 | |
1837 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1838 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0) | |
1839 | { | |
1840 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; | |
1841 | } | |
1842 | ||
30667bf3 AM |
1843 | if (h->plt.refcount <= 0 |
1844 | || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1845 | && h->root.type != bfd_link_hash_defweak | |
74d1c347 | 1846 | && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel |
30667bf3 AM |
1847 | && (!info->shared || info->symbolic))) |
1848 | { | |
1849 | /* The .plt entry is not needed when: | |
1850 | a) Garbage collection has removed all references to the | |
1851 | symbol, or | |
1852 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1853 | object, and it's not a weak definition, nor is the symbol |
1854 | used by a plabel relocation. Either this object is the | |
1855 | application or we are doing a shared symbolic link. */ | |
1856 | ||
1857 | /* As a special sop to the hppa ABI, we keep a .plt entry | |
1858 | for functions in sections containing PIC code. */ | |
12cca0d2 AM |
1859 | if (((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call) |
1860 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; | |
30667bf3 AM |
1861 | else |
1862 | { | |
1863 | h->plt.offset = (bfd_vma) -1; | |
1864 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
30667bf3 | 1865 | } |
30667bf3 | 1866 | } |
4dc86686 | 1867 | |
30667bf3 AM |
1868 | return true; |
1869 | } | |
bbd7ec4a AM |
1870 | else |
1871 | h->plt.offset = (bfd_vma) -1; | |
edd21aca | 1872 | |
30667bf3 AM |
1873 | /* If this is a weak symbol, and there is a real definition, the |
1874 | processor independent code will have arranged for us to see the | |
1875 | real definition first, and we can just use the same value. */ | |
1876 | if (h->weakdef != NULL) | |
edd21aca | 1877 | { |
49e9d0d3 AM |
1878 | if (h->weakdef->root.type != bfd_link_hash_defined |
1879 | && h->weakdef->root.type != bfd_link_hash_defweak) | |
1880 | abort (); | |
30667bf3 AM |
1881 | h->root.u.def.section = h->weakdef->root.u.def.section; |
1882 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
0a991dfe | 1883 | return true; |
30667bf3 | 1884 | } |
edd21aca | 1885 | |
30667bf3 AM |
1886 | /* This is a reference to a symbol defined by a dynamic object which |
1887 | is not a function. */ | |
1888 | ||
1889 | /* If we are creating a shared library, we must presume that the | |
1890 | only references to the symbol are via the global offset table. | |
1891 | For such cases we need not do anything here; the relocations will | |
1892 | be handled correctly by relocate_section. */ | |
1893 | if (info->shared) | |
1894 | return true; | |
1895 | ||
1896 | /* If there are no references to this symbol that do not use the | |
1897 | GOT, we don't need to generate a copy reloc. */ | |
1898 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
1899 | return true; | |
1900 | ||
ebe50bae AM |
1901 | eh = (struct elf32_hppa_link_hash_entry *) h; |
1902 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1903 | { | |
1904 | s = p->sec->output_section; | |
1905 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1906 | break; | |
1907 | } | |
1908 | ||
1909 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1910 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
1911 | if (p == NULL) | |
1912 | { | |
1913 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
1914 | return true; | |
1915 | } | |
1916 | ||
30667bf3 AM |
1917 | /* We must allocate the symbol in our .dynbss section, which will |
1918 | become part of the .bss section of the executable. There will be | |
1919 | an entry for this symbol in the .dynsym section. The dynamic | |
1920 | object will contain position independent code, so all references | |
1921 | from the dynamic object to this symbol will go through the global | |
1922 | offset table. The dynamic linker will use the .dynsym entry to | |
1923 | determine the address it must put in the global offset table, so | |
1924 | both the dynamic object and the regular object will refer to the | |
1925 | same memory location for the variable. */ | |
1926 | ||
3ac8354b | 1927 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1928 | |
1929 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1930 | copy the initial value out of the dynamic object and into the | |
3ac8354b | 1931 | runtime process image. */ |
30667bf3 AM |
1932 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
1933 | { | |
3ac8354b | 1934 | htab->srelbss->_raw_size += sizeof (Elf32_External_Rela); |
30667bf3 | 1935 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
edd21aca | 1936 | } |
252b5132 | 1937 | |
3ac8354b AM |
1938 | /* We need to figure out the alignment required for this symbol. I |
1939 | have no idea how other ELF linkers handle this. */ | |
30667bf3 | 1940 | |
3ac8354b AM |
1941 | power_of_two = bfd_log2 (h->size); |
1942 | if (power_of_two > 3) | |
1943 | power_of_two = 3; | |
1944 | ||
1945 | /* Apply the required alignment. */ | |
1946 | s = htab->sdynbss; | |
1947 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1948 | (bfd_size_type) (1 << power_of_two)); | |
1949 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
1950 | { | |
1951 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) | |
1952 | return false; | |
1953 | } | |
30667bf3 | 1954 | |
30667bf3 AM |
1955 | /* Define the symbol as being at this point in the section. */ |
1956 | h->root.u.def.section = s; | |
1957 | h->root.u.def.value = s->_raw_size; | |
edd21aca | 1958 | |
30667bf3 AM |
1959 | /* Increment the section size to make room for the symbol. */ |
1960 | s->_raw_size += h->size; | |
252b5132 RH |
1961 | |
1962 | return true; | |
1963 | } | |
1964 | ||
30667bf3 AM |
1965 | /* Called via elf_link_hash_traverse to create .plt entries for an |
1966 | application that uses statically linked PIC functions. Similar to | |
1967 | the first part of elf32_hppa_adjust_dynamic_symbol. */ | |
252b5132 | 1968 | |
30667bf3 AM |
1969 | static boolean |
1970 | hppa_handle_PIC_calls (h, inf) | |
1971 | struct elf_link_hash_entry *h; | |
4dc86686 | 1972 | PTR inf ATTRIBUTE_UNUSED; |
252b5132 | 1973 | { |
30667bf3 AM |
1974 | if (! (h->plt.refcount > 0 |
1975 | && (h->root.type == bfd_link_hash_defined | |
1976 | || h->root.type == bfd_link_hash_defweak) | |
1977 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)) | |
252b5132 | 1978 | { |
30667bf3 AM |
1979 | h->plt.offset = (bfd_vma) -1; |
1980 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1981 | return true; | |
252b5132 RH |
1982 | } |
1983 | ||
74d1c347 | 1984 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
12cca0d2 | 1985 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; |
30667bf3 | 1986 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
edd21aca | 1987 | |
4dc86686 AM |
1988 | return true; |
1989 | } | |
1990 | ||
1991 | /* Allocate space in .plt, .got and associated reloc sections for | |
1992 | global syms. */ | |
1993 | ||
1994 | static boolean | |
98ceb8ce | 1995 | allocate_dynrelocs (h, inf) |
4dc86686 AM |
1996 | struct elf_link_hash_entry *h; |
1997 | PTR inf; | |
1998 | { | |
1999 | struct bfd_link_info *info; | |
83c81bfe | 2000 | struct elf32_hppa_link_hash_table *htab; |
4dc86686 | 2001 | asection *s; |
446f2863 | 2002 | struct elf32_hppa_link_hash_entry *eh; |
98ceb8ce | 2003 | struct elf32_hppa_dyn_reloc_entry *p; |
4dc86686 | 2004 | |
73a74a62 AM |
2005 | if (h->root.type == bfd_link_hash_indirect |
2006 | || h->root.type == bfd_link_hash_warning) | |
2007 | return true; | |
2008 | ||
30667bf3 | 2009 | info = (struct bfd_link_info *) inf; |
83c81bfe | 2010 | htab = hppa_link_hash_table (info); |
ebe50bae | 2011 | if ((htab->elf.dynamic_sections_created |
4dc86686 AM |
2012 | && h->plt.refcount > 0) |
2013 | || ((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2014 | { | |
446f2863 AM |
2015 | /* Make sure this symbol is output as a dynamic symbol. |
2016 | Undefined weak syms won't yet be marked as dynamic. */ | |
2017 | if (h->dynindx == -1 | |
2018 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2019 | && h->type != STT_PARISC_MILLI | |
2020 | && !((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2021 | { | |
2022 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2023 | return false; | |
2024 | } | |
2025 | ||
3ac8354b AM |
2026 | if (((struct elf32_hppa_link_hash_entry *) h)->pic_call |
2027 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
4dc86686 | 2028 | { |
3ac8354b AM |
2029 | /* Make an entry in the .plt section. */ |
2030 | s = htab->splt; | |
2031 | h->plt.offset = s->_raw_size; | |
2032 | if (PLABEL_PLT_ENTRY_SIZE != PLT_ENTRY_SIZE | |
2033 | && ((struct elf32_hppa_link_hash_entry *) h)->plabel | |
2034 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
2035 | { | |
2036 | /* Add some extra space for the dynamic linker to use. */ | |
2037 | s->_raw_size += PLABEL_PLT_ENTRY_SIZE; | |
2038 | } | |
2039 | else | |
2040 | s->_raw_size += PLT_ENTRY_SIZE; | |
2041 | ||
2042 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2043 | { | |
2044 | /* We also need to make an entry in the .rela.plt section. */ | |
2045 | htab->srelplt->_raw_size += sizeof (Elf32_External_Rela); | |
2046 | htab->need_plt_stub = 1; | |
2047 | } | |
4dc86686 AM |
2048 | } |
2049 | else | |
4dc86686 | 2050 | { |
3ac8354b AM |
2051 | h->plt.offset = (bfd_vma) -1; |
2052 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
4dc86686 AM |
2053 | } |
2054 | } | |
2055 | else | |
2056 | { | |
2057 | h->plt.offset = (bfd_vma) -1; | |
2058 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2059 | } | |
edd21aca | 2060 | |
4dc86686 AM |
2061 | if (h->got.refcount > 0) |
2062 | { | |
446f2863 AM |
2063 | /* Make sure this symbol is output as a dynamic symbol. |
2064 | Undefined weak syms won't yet be marked as dynamic. */ | |
2065 | if (h->dynindx == -1 | |
2066 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2067 | && h->type != STT_PARISC_MILLI) | |
2068 | { | |
2069 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2070 | return false; | |
2071 | } | |
2072 | ||
83c81bfe | 2073 | s = htab->sgot; |
4dc86686 AM |
2074 | h->got.offset = s->_raw_size; |
2075 | s->_raw_size += GOT_ENTRY_SIZE; | |
ce757d15 AM |
2076 | if (htab->elf.dynamic_sections_created |
2077 | && (info->shared | |
2078 | || (h->dynindx != -1 | |
2079 | && h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)) | |
2080 | { | |
2081 | htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
2082 | } | |
4dc86686 AM |
2083 | } |
2084 | else | |
2085 | h->got.offset = (bfd_vma) -1; | |
30667bf3 | 2086 | |
446f2863 | 2087 | eh = (struct elf32_hppa_link_hash_entry *) h; |
98ceb8ce | 2088 | if (eh->dyn_relocs == NULL) |
446f2863 | 2089 | return true; |
30667bf3 | 2090 | |
98ceb8ce AM |
2091 | /* If this is a -Bsymbolic shared link, then we need to discard all |
2092 | space allocated for dynamic pc-relative relocs against symbols | |
2093 | defined in a regular object. For the normal shared case, discard | |
2094 | space for relocs that have become local due to symbol visibility | |
2095 | changes. */ | |
2096 | if (info->shared) | |
446f2863 | 2097 | { |
98ceb8ce AM |
2098 | #if RELATIVE_DYNRELOCS |
2099 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
2100 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
2101 | || info->symbolic)) | |
446f2863 | 2102 | { |
98ceb8ce | 2103 | struct elf32_hppa_dyn_reloc_entry **pp; |
30667bf3 | 2104 | |
98ceb8ce AM |
2105 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
2106 | { | |
2107 | p->count -= p->relative_count; | |
2108 | p->relative_count = 0; | |
2109 | if (p->count == 0) | |
2110 | *pp = p->next; | |
2111 | else | |
2112 | pp = &p->next; | |
2113 | } | |
2114 | } | |
2115 | #endif | |
446f2863 | 2116 | } |
98ceb8ce | 2117 | else |
30667bf3 | 2118 | { |
98ceb8ce AM |
2119 | /* For the non-shared case, discard space for relocs against |
2120 | symbols which turn out to need copy relocs or are not | |
2121 | dynamic. */ | |
2122 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
2123 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2124 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
ebe50bae | 2125 | || (htab->elf.dynamic_sections_created |
98ceb8ce AM |
2126 | && (h->root.type == bfd_link_hash_undefweak |
2127 | || h->root.type == bfd_link_hash_undefined)))) | |
2128 | { | |
2129 | /* Make sure this symbol is output as a dynamic symbol. | |
2130 | Undefined weak syms won't yet be marked as dynamic. */ | |
2131 | if (h->dynindx == -1 | |
2132 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2133 | && h->type != STT_PARISC_MILLI) | |
2134 | { | |
2135 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2136 | return false; | |
2137 | } | |
2138 | ||
2139 | /* If that succeeded, we know we'll be keeping all the | |
2140 | relocs. */ | |
2141 | if (h->dynindx != -1) | |
2142 | goto keep; | |
2143 | } | |
446f2863 | 2144 | |
98ceb8ce AM |
2145 | eh->dyn_relocs = NULL; |
2146 | return true; | |
2147 | ||
2148 | keep: | |
30667bf3 | 2149 | } |
30667bf3 | 2150 | |
98ceb8ce AM |
2151 | /* Finally, allocate space. */ |
2152 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
30667bf3 | 2153 | { |
98ceb8ce AM |
2154 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
2155 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2156 | } |
30667bf3 AM |
2157 | |
2158 | return true; | |
2159 | } | |
30667bf3 | 2160 | |
d5c73c2f AM |
2161 | /* This function is called via elf_link_hash_traverse to force |
2162 | millicode symbols local so they do not end up as globals in the | |
2163 | dynamic symbol table. We ought to be able to do this in | |
2164 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2165 | for all dynamic symbols. Arguably, this is a bug in | |
2166 | elf_adjust_dynamic_symbol. */ | |
2167 | ||
2168 | static boolean | |
2169 | clobber_millicode_symbols (h, info) | |
2170 | struct elf_link_hash_entry *h; | |
2171 | struct bfd_link_info *info; | |
2172 | { | |
8dea1268 AM |
2173 | /* We only want to remove these from the dynamic symbol table. |
2174 | Therefore we do not leave ELF_LINK_FORCED_LOCAL set. */ | |
d5c73c2f | 2175 | if (h->type == STT_PARISC_MILLI) |
e0522e89 AM |
2176 | { |
2177 | unsigned short oldflags = h->elf_link_hash_flags; | |
2178 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL; | |
2179 | elf32_hppa_hide_symbol (info, h); | |
2180 | h->elf_link_hash_flags &= ~ELF_LINK_FORCED_LOCAL; | |
2181 | h->elf_link_hash_flags |= oldflags & ELF_LINK_FORCED_LOCAL; | |
2182 | } | |
d5c73c2f AM |
2183 | return true; |
2184 | } | |
2185 | ||
98ceb8ce AM |
2186 | /* Find any dynamic relocs that apply to read-only sections. */ |
2187 | ||
2188 | static boolean | |
2189 | readonly_dynrelocs (h, inf) | |
2190 | struct elf_link_hash_entry *h; | |
2191 | PTR inf; | |
2192 | { | |
2193 | struct elf32_hppa_link_hash_entry *eh; | |
2194 | struct elf32_hppa_dyn_reloc_entry *p; | |
2195 | ||
2196 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
2197 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2198 | { | |
2199 | asection *s = p->sec->output_section; | |
2200 | ||
2201 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2202 | { | |
2203 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2204 | ||
2205 | info->flags |= DF_TEXTREL; | |
2206 | ||
2207 | /* Not an error, just cut short the traversal. */ | |
2208 | return false; | |
2209 | } | |
2210 | } | |
2211 | return true; | |
2212 | } | |
2213 | ||
30667bf3 AM |
2214 | /* Set the sizes of the dynamic sections. */ |
2215 | ||
2216 | static boolean | |
2217 | elf32_hppa_size_dynamic_sections (output_bfd, info) | |
98ceb8ce | 2218 | bfd *output_bfd ATTRIBUTE_UNUSED; |
30667bf3 AM |
2219 | struct bfd_link_info *info; |
2220 | { | |
83c81bfe | 2221 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2222 | bfd *dynobj; |
98ceb8ce | 2223 | bfd *ibfd; |
30667bf3 AM |
2224 | asection *s; |
2225 | boolean relocs; | |
30667bf3 | 2226 | |
83c81bfe | 2227 | htab = hppa_link_hash_table (info); |
ebe50bae | 2228 | dynobj = htab->elf.dynobj; |
49e9d0d3 AM |
2229 | if (dynobj == NULL) |
2230 | abort (); | |
30667bf3 | 2231 | |
ebe50bae | 2232 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2233 | { |
2234 | /* Set the contents of the .interp section to the interpreter. */ | |
2235 | if (! info->shared) | |
2236 | { | |
2237 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
49e9d0d3 AM |
2238 | if (s == NULL) |
2239 | abort (); | |
30667bf3 AM |
2240 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; |
2241 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2242 | } | |
74d1c347 | 2243 | |
d5c73c2f | 2244 | /* Force millicode symbols local. */ |
ebe50bae | 2245 | elf_link_hash_traverse (&htab->elf, |
d5c73c2f AM |
2246 | clobber_millicode_symbols, |
2247 | info); | |
68fb2e56 AM |
2248 | } |
2249 | else | |
2250 | { | |
2251 | /* Run through the function symbols, looking for any that are | |
2252 | PIC, and allocate space for the necessary .plt entries so | |
2253 | that %r19 will be set up. */ | |
2254 | if (! info->shared) | |
ebe50bae | 2255 | elf_link_hash_traverse (&htab->elf, |
68fb2e56 AM |
2256 | hppa_handle_PIC_calls, |
2257 | info); | |
2258 | } | |
d5c73c2f | 2259 | |
98ceb8ce AM |
2260 | /* Set up .got and .plt offsets for local syms, and space for local |
2261 | dynamic relocs. */ | |
2262 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
68fb2e56 AM |
2263 | { |
2264 | bfd_signed_vma *local_got; | |
2265 | bfd_signed_vma *end_local_got; | |
2266 | bfd_signed_vma *local_plt; | |
2267 | bfd_signed_vma *end_local_plt; | |
2268 | bfd_size_type locsymcount; | |
2269 | Elf_Internal_Shdr *symtab_hdr; | |
2270 | asection *srel; | |
74d1c347 | 2271 | |
98ceb8ce | 2272 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2273 | continue; |
4dc86686 | 2274 | |
98ceb8ce AM |
2275 | for (s = ibfd->sections; s != NULL; s = s->next) |
2276 | { | |
2277 | bfd_size_type count = elf_section_data (s)->local_dynrel; | |
2278 | ||
2279 | if (count != 0) | |
2280 | { | |
2281 | srel = elf_section_data (s)->sreloc; | |
2282 | srel->_raw_size += count * sizeof (Elf32_External_Rela); | |
2283 | } | |
2284 | } | |
2285 | ||
2286 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2287 | if (!local_got) |
2288 | continue; | |
74d1c347 | 2289 | |
98ceb8ce | 2290 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2291 | locsymcount = symtab_hdr->sh_info; |
2292 | end_local_got = local_got + locsymcount; | |
83c81bfe AM |
2293 | s = htab->sgot; |
2294 | srel = htab->srelgot; | |
68fb2e56 AM |
2295 | for (; local_got < end_local_got; ++local_got) |
2296 | { | |
2297 | if (*local_got > 0) | |
4dc86686 | 2298 | { |
68fb2e56 AM |
2299 | *local_got = s->_raw_size; |
2300 | s->_raw_size += GOT_ENTRY_SIZE; | |
2301 | if (info->shared) | |
2302 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
4dc86686 | 2303 | } |
68fb2e56 AM |
2304 | else |
2305 | *local_got = (bfd_vma) -1; | |
2306 | } | |
74d1c347 | 2307 | |
68fb2e56 AM |
2308 | local_plt = end_local_got; |
2309 | end_local_plt = local_plt + locsymcount; | |
ebe50bae | 2310 | if (! htab->elf.dynamic_sections_created) |
68fb2e56 AM |
2311 | { |
2312 | /* Won't be used, but be safe. */ | |
2313 | for (; local_plt < end_local_plt; ++local_plt) | |
2314 | *local_plt = (bfd_vma) -1; | |
2315 | } | |
2316 | else | |
2317 | { | |
83c81bfe AM |
2318 | s = htab->splt; |
2319 | srel = htab->srelplt; | |
74d1c347 AM |
2320 | for (; local_plt < end_local_plt; ++local_plt) |
2321 | { | |
2322 | if (*local_plt > 0) | |
2323 | { | |
74d1c347 AM |
2324 | *local_plt = s->_raw_size; |
2325 | s->_raw_size += PLT_ENTRY_SIZE; | |
2326 | if (info->shared) | |
4dc86686 | 2327 | srel->_raw_size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2328 | } |
2329 | else | |
2330 | *local_plt = (bfd_vma) -1; | |
2331 | } | |
2332 | } | |
30667bf3 | 2333 | } |
30667bf3 | 2334 | |
98ceb8ce AM |
2335 | /* Allocate global sym .plt and .got entries, and space for global |
2336 | sym dynamic relocs. */ | |
ebe50bae | 2337 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); |
30667bf3 AM |
2338 | |
2339 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2340 | determined the sizes of the various dynamic sections. Allocate | |
2341 | memory for them. */ | |
2342 | relocs = false; | |
30667bf3 AM |
2343 | for (s = dynobj->sections; s != NULL; s = s->next) |
2344 | { | |
30667bf3 AM |
2345 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2346 | continue; | |
2347 | ||
83c81bfe | 2348 | if (s == htab->splt) |
68fb2e56 | 2349 | { |
83c81bfe | 2350 | if (htab->need_plt_stub) |
68fb2e56 AM |
2351 | { |
2352 | /* Make space for the plt stub at the end of the .plt | |
2353 | section. We want this stub right at the end, up | |
2354 | against the .got section. */ | |
83c81bfe | 2355 | int gotalign = bfd_section_alignment (dynobj, htab->sgot); |
68fb2e56 AM |
2356 | int pltalign = bfd_section_alignment (dynobj, s); |
2357 | bfd_size_type mask; | |
30667bf3 | 2358 | |
68fb2e56 AM |
2359 | if (gotalign > pltalign) |
2360 | bfd_set_section_alignment (dynobj, s, gotalign); | |
2361 | mask = ((bfd_size_type) 1 << gotalign) - 1; | |
2362 | s->_raw_size = (s->_raw_size + sizeof (plt_stub) + mask) & ~mask; | |
2363 | } | |
2364 | } | |
83c81bfe | 2365 | else if (s == htab->sgot) |
68fb2e56 AM |
2366 | ; |
2367 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) | |
30667bf3 AM |
2368 | { |
2369 | if (s->_raw_size != 0) | |
2370 | { | |
4578e0a7 AM |
2371 | /* Remember whether there are any reloc sections. */ |
2372 | relocs = true; | |
47d89dba | 2373 | |
30667bf3 AM |
2374 | /* We use the reloc_count field as a counter if we need |
2375 | to copy relocs into the output file. */ | |
2376 | s->reloc_count = 0; | |
2377 | } | |
2378 | } | |
30667bf3 AM |
2379 | else |
2380 | { | |
2381 | /* It's not one of our sections, so don't allocate space. */ | |
2382 | continue; | |
2383 | } | |
2384 | ||
2385 | if (s->_raw_size == 0) | |
2386 | { | |
2387 | /* If we don't need this section, strip it from the | |
2388 | output file. This is mostly to handle .rela.bss and | |
2389 | .rela.plt. We must create both sections in | |
2390 | create_dynamic_sections, because they must be created | |
2391 | before the linker maps input sections to output | |
2392 | sections. The linker does that before | |
2393 | adjust_dynamic_symbol is called, and it is that | |
2394 | function which decides whether anything needs to go | |
2395 | into these sections. */ | |
2396 | _bfd_strip_section_from_output (info, s); | |
2397 | continue; | |
2398 | } | |
2399 | ||
2400 | /* Allocate memory for the section contents. Zero it, because | |
2401 | we may not fill in all the reloc sections. */ | |
2402 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); | |
2403 | if (s->contents == NULL && s->_raw_size != 0) | |
2404 | return false; | |
2405 | } | |
2406 | ||
ebe50bae | 2407 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2408 | { |
2409 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2410 | actually has nothing to do with the PLT, it is how we | |
2411 | communicate the LTP value of a load module to the dynamic | |
2412 | linker. */ | |
dc810e39 AM |
2413 | #define add_dynamic_entry(TAG, VAL) \ |
2414 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
2415 | ||
2416 | if (!add_dynamic_entry (DT_PLTGOT, 0)) | |
30667bf3 AM |
2417 | return false; |
2418 | ||
2419 | /* Add some entries to the .dynamic section. We fill in the | |
2420 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2421 | must add the entries now so that we get the correct size for | |
2422 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2423 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2424 | if (!info->shared) |
30667bf3 | 2425 | { |
dc810e39 | 2426 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
30667bf3 AM |
2427 | return false; |
2428 | } | |
2429 | ||
83c81bfe | 2430 | if (htab->srelplt->_raw_size != 0) |
30667bf3 | 2431 | { |
dc810e39 AM |
2432 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
2433 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2434 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
30667bf3 AM |
2435 | return false; |
2436 | } | |
2437 | ||
2438 | if (relocs) | |
2439 | { | |
dc810e39 AM |
2440 | if (!add_dynamic_entry (DT_RELA, 0) |
2441 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2442 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
30667bf3 | 2443 | return false; |
30667bf3 | 2444 | |
98ceb8ce AM |
2445 | /* If any dynamic relocs apply to a read-only section, |
2446 | then we need a DT_TEXTREL entry. */ | |
ebe50bae | 2447 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, (PTR) info); |
98ceb8ce AM |
2448 | |
2449 | if ((info->flags & DF_TEXTREL) != 0) | |
2450 | { | |
2451 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
2452 | return false; | |
2453 | } | |
30667bf3 AM |
2454 | } |
2455 | } | |
dc810e39 | 2456 | #undef add_dynamic_entry |
30667bf3 AM |
2457 | |
2458 | return true; | |
2459 | } | |
2460 | ||
30667bf3 AM |
2461 | /* External entry points for sizing and building linker stubs. */ |
2462 | ||
2463 | /* Determine and set the size of the stub section for a final link. | |
2464 | ||
2465 | The basic idea here is to examine all the relocations looking for | |
2466 | PC-relative calls to a target that is unreachable with a "bl" | |
2467 | instruction. */ | |
2468 | ||
2469 | boolean | |
47d89dba | 2470 | elf32_hppa_size_stubs (output_bfd, stub_bfd, info, multi_subspace, group_size, |
30667bf3 | 2471 | add_stub_section, layout_sections_again) |
25f72752 | 2472 | bfd *output_bfd; |
30667bf3 | 2473 | bfd *stub_bfd; |
30667bf3 | 2474 | struct bfd_link_info *info; |
25f72752 | 2475 | boolean multi_subspace; |
47d89dba | 2476 | bfd_signed_vma group_size; |
30667bf3 AM |
2477 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); |
2478 | void (*layout_sections_again) PARAMS ((void)); | |
2479 | { | |
2480 | bfd *input_bfd; | |
2481 | asection *section; | |
25f72752 | 2482 | asection **input_list, **list; |
30667bf3 | 2483 | Elf_Internal_Sym *local_syms, **all_local_syms; |
25f72752 AM |
2484 | unsigned int bfd_indx, bfd_count; |
2485 | int top_id, top_index; | |
83c81bfe | 2486 | struct elf32_hppa_link_hash_table *htab; |
47d89dba AM |
2487 | bfd_size_type stub_group_size; |
2488 | boolean stubs_always_before_branch; | |
30667bf3 | 2489 | boolean stub_changed = 0; |
25f72752 | 2490 | boolean ret = 0; |
dc810e39 | 2491 | bfd_size_type amt; |
30667bf3 | 2492 | |
83c81bfe | 2493 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
2494 | |
2495 | /* Stash our params away. */ | |
83c81bfe AM |
2496 | htab->stub_bfd = stub_bfd; |
2497 | htab->multi_subspace = multi_subspace; | |
2498 | htab->add_stub_section = add_stub_section; | |
2499 | htab->layout_sections_again = layout_sections_again; | |
47d89dba AM |
2500 | stubs_always_before_branch = group_size < 0; |
2501 | if (group_size < 0) | |
2502 | stub_group_size = -group_size; | |
2503 | else | |
2504 | stub_group_size = group_size; | |
2505 | if (stub_group_size == 1) | |
2506 | { | |
2507 | /* Default values. */ | |
2508 | stub_group_size = 8000000; | |
83c81bfe | 2509 | if (htab->has_17bit_branch || htab->multi_subspace) |
47d89dba | 2510 | stub_group_size = 250000; |
83c81bfe | 2511 | if (htab->has_12bit_branch) |
47d89dba AM |
2512 | stub_group_size = 7812; |
2513 | } | |
30667bf3 | 2514 | |
1badb539 AM |
2515 | /* Count the number of input BFDs and find the top input section id. */ |
2516 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2517 | input_bfd != NULL; |
2518 | input_bfd = input_bfd->link_next) | |
2519 | { | |
2520 | bfd_count += 1; | |
25f72752 AM |
2521 | for (section = input_bfd->sections; |
2522 | section != NULL; | |
2523 | section = section->next) | |
2524 | { | |
2525 | if (top_id < section->id) | |
2526 | top_id = section->id; | |
2527 | } | |
30667bf3 AM |
2528 | } |
2529 | ||
dc810e39 | 2530 | amt = sizeof (struct map_stub) * (top_id + 1); |
83c81bfe AM |
2531 | htab->stub_group = (struct map_stub *) bfd_zmalloc (amt); |
2532 | if (htab->stub_group == NULL) | |
30667bf3 AM |
2533 | return false; |
2534 | ||
1badb539 AM |
2535 | /* Make a list of input sections for each output section included in |
2536 | the link. | |
2537 | ||
2538 | We can't use output_bfd->section_count here to find the top output | |
2539 | section index as some sections may have been removed, and | |
2540 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
2541 | for (section = output_bfd->sections, top_index = 0; | |
2542 | section != NULL; | |
2543 | section = section->next) | |
2544 | { | |
2545 | if (top_index < section->index) | |
2546 | top_index = section->index; | |
2547 | } | |
2548 | ||
dc810e39 AM |
2549 | amt = sizeof (asection *) * (top_index + 1); |
2550 | input_list = (asection **) bfd_malloc (amt); | |
25f72752 AM |
2551 | if (input_list == NULL) |
2552 | return false; | |
2553 | ||
1badb539 AM |
2554 | /* For sections we aren't interested in, mark their entries with a |
2555 | value we can check later. */ | |
2556 | list = input_list + top_index; | |
2557 | do | |
2558 | *list = bfd_abs_section_ptr; | |
2559 | while (list-- != input_list); | |
2560 | ||
2561 | for (section = output_bfd->sections; | |
2562 | section != NULL; | |
2563 | section = section->next) | |
2564 | { | |
47d89dba | 2565 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2566 | input_list[section->index] = NULL; |
2567 | } | |
2568 | ||
2569 | /* Now actually build the lists. */ | |
25f72752 AM |
2570 | for (input_bfd = info->input_bfds; |
2571 | input_bfd != NULL; | |
2572 | input_bfd = input_bfd->link_next) | |
2573 | { | |
2574 | for (section = input_bfd->sections; | |
2575 | section != NULL; | |
2576 | section = section->next) | |
2577 | { | |
2578 | if (section->output_section != NULL | |
1badb539 AM |
2579 | && section->output_section->owner == output_bfd |
2580 | && section->output_section->index <= top_index) | |
25f72752 AM |
2581 | { |
2582 | list = input_list + section->output_section->index; | |
1badb539 AM |
2583 | if (*list != bfd_abs_section_ptr) |
2584 | { | |
2585 | /* Steal the link_sec pointer for our list. */ | |
83c81bfe | 2586 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
1badb539 AM |
2587 | /* This happens to make the list in reverse order, |
2588 | which is what we want. */ | |
2589 | PREV_SEC (section) = *list; | |
2590 | *list = section; | |
2591 | } | |
25f72752 AM |
2592 | } |
2593 | } | |
2594 | } | |
2595 | ||
2596 | /* See whether we can group stub sections together. Grouping stub | |
2597 | sections may result in fewer stubs. More importantly, we need to | |
2598 | put all .init* and .fini* stubs at the beginning of the .init or | |
2599 | .fini output sections respectively, because glibc splits the | |
2600 | _init and _fini functions into multiple parts. Putting a stub in | |
2601 | the middle of a function is not a good idea. */ | |
a017a724 | 2602 | list = input_list + top_index; |
1badb539 | 2603 | do |
25f72752 AM |
2604 | { |
2605 | asection *tail = *list; | |
1badb539 AM |
2606 | if (tail == bfd_abs_section_ptr) |
2607 | continue; | |
25f72752 AM |
2608 | while (tail != NULL) |
2609 | { | |
2610 | asection *curr; | |
2611 | asection *prev; | |
2612 | bfd_size_type total; | |
2613 | ||
2614 | curr = tail; | |
2615 | if (tail->_cooked_size) | |
2616 | total = tail->_cooked_size; | |
2617 | else | |
2618 | total = tail->_raw_size; | |
2619 | while ((prev = PREV_SEC (curr)) != NULL | |
2620 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2621 | < stub_group_size)) |
25f72752 AM |
2622 | curr = prev; |
2623 | ||
2624 | /* OK, the size from the start of CURR to the end is less | |
2625 | than 250000 bytes and thus can be handled by one stub | |
2626 | section. (or the tail section is itself larger than | |
2627 | 250000 bytes, in which case we may be toast.) | |
2628 | We should really be keeping track of the total size of | |
2629 | stubs added here, as stubs contribute to the final output | |
2630 | section size. That's a little tricky, and this way will | |
2631 | only break if stubs added total more than 12144 bytes, or | |
2632 | 1518 long branch stubs. It seems unlikely for more than | |
2633 | 1518 different functions to be called, especially from | |
2634 | code only 250000 bytes long. */ | |
2635 | do | |
2636 | { | |
2637 | prev = PREV_SEC (tail); | |
2638 | /* Set up this stub group. */ | |
83c81bfe | 2639 | htab->stub_group[tail->id].link_sec = curr; |
25f72752 AM |
2640 | } |
2641 | while (tail != curr && (tail = prev) != NULL); | |
2642 | ||
2643 | /* But wait, there's more! Input sections up to 250000 | |
2644 | bytes before the stub section can be handled by it too. */ | |
47d89dba | 2645 | if (!stubs_always_before_branch) |
25f72752 | 2646 | { |
47d89dba AM |
2647 | total = 0; |
2648 | while (prev != NULL | |
2649 | && ((total += tail->output_offset - prev->output_offset) | |
2650 | < stub_group_size)) | |
2651 | { | |
2652 | tail = prev; | |
2653 | prev = PREV_SEC (tail); | |
83c81bfe | 2654 | htab->stub_group[tail->id].link_sec = curr; |
47d89dba | 2655 | } |
25f72752 AM |
2656 | } |
2657 | tail = prev; | |
2658 | } | |
2659 | } | |
1badb539 | 2660 | while (list-- != input_list); |
25f72752 | 2661 | free (input_list); |
1badb539 | 2662 | #undef PREV_SEC |
30667bf3 AM |
2663 | |
2664 | /* We want to read in symbol extension records only once. To do this | |
2665 | we need to read in the local symbols in parallel and save them for | |
2666 | later use; so hold pointers to the local symbols in an array. */ | |
dc810e39 AM |
2667 | amt = sizeof (Elf_Internal_Sym *) * bfd_count; |
2668 | all_local_syms = (Elf_Internal_Sym **) bfd_zmalloc (amt); | |
30667bf3 | 2669 | if (all_local_syms == NULL) |
25f72752 | 2670 | return false; |
30667bf3 AM |
2671 | |
2672 | /* Walk over all the input BFDs, swapping in local symbols. | |
2673 | If we are creating a shared library, create hash entries for the | |
2674 | export stubs. */ | |
25f72752 | 2675 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2676 | input_bfd != NULL; |
25f72752 | 2677 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2678 | { |
2679 | Elf_Internal_Shdr *symtab_hdr; | |
2680 | Elf_Internal_Sym *isym; | |
25f72752 | 2681 | Elf32_External_Sym *ext_syms, *esym, *end_sy; |
dc810e39 | 2682 | bfd_size_type sec_size; |
edd21aca | 2683 | |
252b5132 RH |
2684 | /* We'll need the symbol table in a second. */ |
2685 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2686 | if (symtab_hdr->sh_info == 0) | |
2687 | continue; | |
2688 | ||
edd21aca AM |
2689 | /* We need an array of the local symbols attached to the input bfd. |
2690 | Unfortunately, we're going to have to read & swap them in. */ | |
dc810e39 AM |
2691 | sec_size = symtab_hdr->sh_info; |
2692 | sec_size *= sizeof (Elf_Internal_Sym); | |
2693 | local_syms = (Elf_Internal_Sym *) bfd_malloc (sec_size); | |
edd21aca AM |
2694 | if (local_syms == NULL) |
2695 | { | |
2696 | goto error_ret_free_local; | |
2697 | } | |
25f72752 | 2698 | all_local_syms[bfd_indx] = local_syms; |
dc810e39 AM |
2699 | sec_size = symtab_hdr->sh_info; |
2700 | sec_size *= sizeof (Elf32_External_Sym); | |
2701 | ext_syms = (Elf32_External_Sym *) bfd_malloc (sec_size); | |
edd21aca AM |
2702 | if (ext_syms == NULL) |
2703 | { | |
2704 | goto error_ret_free_local; | |
2705 | } | |
2706 | ||
2707 | if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 2708 | || (bfd_bread (ext_syms, sec_size, input_bfd) != sec_size)) |
edd21aca AM |
2709 | { |
2710 | free (ext_syms); | |
2711 | goto error_ret_free_local; | |
2712 | } | |
2713 | ||
2714 | /* Swap the local symbols in. */ | |
2715 | isym = local_syms; | |
2716 | esym = ext_syms; | |
25f72752 | 2717 | for (end_sy = esym + symtab_hdr->sh_info; esym < end_sy; esym++, isym++) |
edd21aca AM |
2718 | bfd_elf32_swap_symbol_in (input_bfd, esym, isym); |
2719 | ||
2720 | /* Now we can free the external symbols. */ | |
2721 | free (ext_syms); | |
edd21aca | 2722 | |
83c81bfe | 2723 | if (info->shared && htab->multi_subspace) |
30667bf3 | 2724 | { |
25f72752 AM |
2725 | struct elf_link_hash_entry **sym_hashes; |
2726 | struct elf_link_hash_entry **end_hashes; | |
30667bf3 AM |
2727 | unsigned int symcount; |
2728 | ||
2729 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2730 | - symtab_hdr->sh_info); | |
25f72752 AM |
2731 | sym_hashes = elf_sym_hashes (input_bfd); |
2732 | end_hashes = sym_hashes + symcount; | |
30667bf3 AM |
2733 | |
2734 | /* Look through the global syms for functions; We need to | |
2735 | build export stubs for all globally visible functions. */ | |
25f72752 | 2736 | for (; sym_hashes < end_hashes; sym_hashes++) |
30667bf3 AM |
2737 | { |
2738 | struct elf32_hppa_link_hash_entry *hash; | |
2739 | ||
25f72752 | 2740 | hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes; |
30667bf3 AM |
2741 | |
2742 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2743 | || hash->elf.root.type == bfd_link_hash_warning) | |
2744 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2745 | hash->elf.root.u.i.link); | |
2746 | ||
2747 | /* At this point in the link, undefined syms have been | |
2748 | resolved, so we need to check that the symbol was | |
2749 | defined in this BFD. */ | |
2750 | if ((hash->elf.root.type == bfd_link_hash_defined | |
2751 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2752 | && hash->elf.type == STT_FUNC | |
2753 | && hash->elf.root.u.def.section->output_section != NULL | |
25f72752 AM |
2754 | && (hash->elf.root.u.def.section->output_section->owner |
2755 | == output_bfd) | |
30667bf3 AM |
2756 | && hash->elf.root.u.def.section->owner == input_bfd |
2757 | && (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
2758 | && !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) | |
2759 | && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT) | |
2760 | { | |
2761 | asection *sec; | |
2762 | const char *stub_name; | |
2763 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2764 | ||
2765 | sec = hash->elf.root.u.def.section; | |
2766 | stub_name = hash->elf.root.root.string; | |
83c81bfe | 2767 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
2768 | stub_name, |
2769 | false, false); | |
2770 | if (stub_entry == NULL) | |
2771 | { | |
83c81bfe | 2772 | stub_entry = hppa_add_stub (stub_name, sec, htab); |
30667bf3 AM |
2773 | if (!stub_entry) |
2774 | goto error_ret_free_local; | |
2775 | ||
2776 | stub_entry->target_value = hash->elf.root.u.def.value; | |
2777 | stub_entry->target_section = hash->elf.root.u.def.section; | |
2778 | stub_entry->stub_type = hppa_stub_export; | |
2779 | stub_entry->h = hash; | |
2780 | stub_changed = 1; | |
2781 | } | |
2782 | else | |
2783 | { | |
2784 | (*_bfd_error_handler) (_("%s: duplicate export stub %s"), | |
8f615d07 AM |
2785 | bfd_archive_filename (input_bfd), |
2786 | stub_name); | |
30667bf3 AM |
2787 | } |
2788 | } | |
2789 | } | |
30667bf3 AM |
2790 | } |
2791 | } | |
edd21aca AM |
2792 | |
2793 | while (1) | |
2794 | { | |
30667bf3 AM |
2795 | asection *stub_sec; |
2796 | ||
25f72752 | 2797 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2798 | input_bfd != NULL; |
25f72752 | 2799 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2800 | { |
2801 | Elf_Internal_Shdr *symtab_hdr; | |
2802 | ||
2803 | /* We'll need the symbol table in a second. */ | |
2804 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2805 | if (symtab_hdr->sh_info == 0) | |
2806 | continue; | |
2807 | ||
25f72752 | 2808 | local_syms = all_local_syms[bfd_indx]; |
30667bf3 AM |
2809 | |
2810 | /* Walk over each section attached to the input bfd. */ | |
2811 | for (section = input_bfd->sections; | |
2812 | section != NULL; | |
25f72752 | 2813 | section = section->next) |
30667bf3 AM |
2814 | { |
2815 | Elf_Internal_Shdr *input_rel_hdr; | |
2816 | Elf32_External_Rela *external_relocs, *erelaend, *erela; | |
2817 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; | |
2818 | ||
2819 | /* If there aren't any relocs, then there's nothing more | |
2820 | to do. */ | |
2821 | if ((section->flags & SEC_RELOC) == 0 | |
2822 | || section->reloc_count == 0) | |
2823 | continue; | |
2824 | ||
25f72752 AM |
2825 | /* If this section is a link-once section that will be |
2826 | discarded, then don't create any stubs. */ | |
2827 | if (section->output_section == NULL | |
2828 | || section->output_section->owner != output_bfd) | |
2829 | continue; | |
2830 | ||
30667bf3 | 2831 | /* Allocate space for the external relocations. */ |
dc810e39 AM |
2832 | amt = section->reloc_count; |
2833 | amt *= sizeof (Elf32_External_Rela); | |
2834 | external_relocs = (Elf32_External_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
2835 | if (external_relocs == NULL) |
2836 | { | |
2837 | goto error_ret_free_local; | |
2838 | } | |
2839 | ||
2840 | /* Likewise for the internal relocations. */ | |
dc810e39 AM |
2841 | amt = section->reloc_count; |
2842 | amt *= sizeof (Elf_Internal_Rela); | |
2843 | internal_relocs = (Elf_Internal_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
2844 | if (internal_relocs == NULL) |
2845 | { | |
2846 | free (external_relocs); | |
2847 | goto error_ret_free_local; | |
2848 | } | |
2849 | ||
2850 | /* Read in the external relocs. */ | |
2851 | input_rel_hdr = &elf_section_data (section)->rel_hdr; | |
2852 | if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0 | |
dc810e39 | 2853 | || bfd_bread (external_relocs, |
30667bf3 AM |
2854 | input_rel_hdr->sh_size, |
2855 | input_bfd) != input_rel_hdr->sh_size) | |
2856 | { | |
2857 | free (external_relocs); | |
2858 | error_ret_free_internal: | |
2859 | free (internal_relocs); | |
2860 | goto error_ret_free_local; | |
2861 | } | |
2862 | ||
2863 | /* Swap in the relocs. */ | |
2864 | erela = external_relocs; | |
2865 | erelaend = erela + section->reloc_count; | |
2866 | irela = internal_relocs; | |
2867 | for (; erela < erelaend; erela++, irela++) | |
2868 | bfd_elf32_swap_reloca_in (input_bfd, erela, irela); | |
2869 | ||
2870 | /* We're done with the external relocs, free them. */ | |
2871 | free (external_relocs); | |
2872 | ||
2873 | /* Now examine each relocation. */ | |
2874 | irela = internal_relocs; | |
2875 | irelaend = irela + section->reloc_count; | |
2876 | for (; irela < irelaend; irela++) | |
2877 | { | |
2878 | unsigned int r_type, r_indx; | |
2879 | enum elf32_hppa_stub_type stub_type; | |
2880 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2881 | asection *sym_sec; | |
2882 | bfd_vma sym_value; | |
2883 | bfd_vma destination; | |
2884 | struct elf32_hppa_link_hash_entry *hash; | |
2885 | char *stub_name; | |
25f72752 | 2886 | const asection *id_sec; |
30667bf3 AM |
2887 | |
2888 | r_type = ELF32_R_TYPE (irela->r_info); | |
2889 | r_indx = ELF32_R_SYM (irela->r_info); | |
2890 | ||
2891 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2892 | { | |
2893 | bfd_set_error (bfd_error_bad_value); | |
2894 | goto error_ret_free_internal; | |
2895 | } | |
2896 | ||
2897 | /* Only look for stubs on call instructions. */ | |
2898 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
2899 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
2900 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
2901 | continue; | |
2902 | ||
2903 | /* Now determine the call target, its name, value, | |
2904 | section. */ | |
2905 | sym_sec = NULL; | |
2906 | sym_value = 0; | |
2907 | destination = 0; | |
2908 | hash = NULL; | |
2909 | if (r_indx < symtab_hdr->sh_info) | |
2910 | { | |
2911 | /* It's a local symbol. */ | |
2912 | Elf_Internal_Sym *sym; | |
2913 | Elf_Internal_Shdr *hdr; | |
2914 | ||
2915 | sym = local_syms + r_indx; | |
2916 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
2917 | sym_sec = hdr->bfd_section; | |
2918 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
2919 | sym_value = sym->st_value; | |
2920 | destination = (sym_value + irela->r_addend | |
2921 | + sym_sec->output_offset | |
2922 | + sym_sec->output_section->vma); | |
2923 | } | |
2924 | else | |
2925 | { | |
2926 | /* It's an external symbol. */ | |
2927 | int e_indx; | |
2928 | ||
2929 | e_indx = r_indx - symtab_hdr->sh_info; | |
2930 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2931 | elf_sym_hashes (input_bfd)[e_indx]); | |
2932 | ||
2933 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2934 | || hash->elf.root.type == bfd_link_hash_warning) | |
2935 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2936 | hash->elf.root.u.i.link); | |
2937 | ||
2938 | if (hash->elf.root.type == bfd_link_hash_defined | |
2939 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2940 | { | |
2941 | sym_sec = hash->elf.root.u.def.section; | |
2942 | sym_value = hash->elf.root.u.def.value; | |
2943 | if (sym_sec->output_section != NULL) | |
2944 | destination = (sym_value + irela->r_addend | |
2945 | + sym_sec->output_offset | |
2946 | + sym_sec->output_section->vma); | |
2947 | } | |
2948 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
2949 | { | |
2950 | if (! info->shared) | |
2951 | continue; | |
2952 | } | |
2953 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
2954 | { | |
2955 | if (! (info->shared | |
2956 | && !info->no_undefined | |
2957 | && (ELF_ST_VISIBILITY (hash->elf.other) | |
2958 | == STV_DEFAULT))) | |
2959 | continue; | |
2960 | } | |
2961 | else | |
2962 | { | |
2963 | bfd_set_error (bfd_error_bad_value); | |
2964 | goto error_ret_free_internal; | |
2965 | } | |
2966 | } | |
2967 | ||
2968 | /* Determine what (if any) linker stub is needed. */ | |
2969 | stub_type = hppa_type_of_stub (section, irela, hash, | |
2970 | destination); | |
2971 | if (stub_type == hppa_stub_none) | |
2972 | continue; | |
2973 | ||
25f72752 | 2974 | /* Support for grouping stub sections. */ |
83c81bfe | 2975 | id_sec = htab->stub_group[section->id].link_sec; |
25f72752 | 2976 | |
30667bf3 | 2977 | /* Get the name of this stub. */ |
25f72752 | 2978 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela); |
30667bf3 AM |
2979 | if (!stub_name) |
2980 | goto error_ret_free_internal; | |
2981 | ||
83c81bfe | 2982 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
2983 | stub_name, |
2984 | false, false); | |
2985 | if (stub_entry != NULL) | |
2986 | { | |
2987 | /* The proper stub has already been created. */ | |
2988 | free (stub_name); | |
2989 | continue; | |
2990 | } | |
2991 | ||
83c81bfe | 2992 | stub_entry = hppa_add_stub (stub_name, section, htab); |
30667bf3 AM |
2993 | if (stub_entry == NULL) |
2994 | { | |
2995 | free (stub_name); | |
2996 | goto error_ret_free_local; | |
2997 | } | |
2998 | ||
2999 | stub_entry->target_value = sym_value; | |
3000 | stub_entry->target_section = sym_sec; | |
3001 | stub_entry->stub_type = stub_type; | |
3002 | if (info->shared) | |
3003 | { | |
3004 | if (stub_type == hppa_stub_import) | |
3005 | stub_entry->stub_type = hppa_stub_import_shared; | |
98ceb8ce | 3006 | else if (stub_type == hppa_stub_long_branch) |
30667bf3 AM |
3007 | stub_entry->stub_type = hppa_stub_long_branch_shared; |
3008 | } | |
3009 | stub_entry->h = hash; | |
3010 | stub_changed = 1; | |
3011 | } | |
3012 | ||
3013 | /* We're done with the internal relocs, free them. */ | |
3014 | free (internal_relocs); | |
3015 | } | |
3016 | } | |
3017 | ||
3018 | if (!stub_changed) | |
3019 | break; | |
3020 | ||
3021 | /* OK, we've added some stubs. Find out the new size of the | |
3022 | stub sections. */ | |
83c81bfe | 3023 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3024 | stub_sec != NULL; |
3025 | stub_sec = stub_sec->next) | |
3026 | { | |
74d1c347 AM |
3027 | stub_sec->_raw_size = 0; |
3028 | stub_sec->_cooked_size = 0; | |
3029 | } | |
74d1c347 | 3030 | |
83c81bfe | 3031 | bfd_hash_traverse (&htab->stub_hash_table, hppa_size_one_stub, htab); |
74d1c347 | 3032 | |
30667bf3 | 3033 | /* Ask the linker to do its stuff. */ |
83c81bfe | 3034 | (*htab->layout_sections_again) (); |
30667bf3 AM |
3035 | stub_changed = 0; |
3036 | } | |
3037 | ||
25f72752 | 3038 | ret = 1; |
30667bf3 AM |
3039 | |
3040 | error_ret_free_local: | |
25f72752 AM |
3041 | while (bfd_count-- > 0) |
3042 | if (all_local_syms[bfd_count]) | |
3043 | free (all_local_syms[bfd_count]); | |
30667bf3 AM |
3044 | free (all_local_syms); |
3045 | ||
25f72752 | 3046 | return ret; |
30667bf3 AM |
3047 | } |
3048 | ||
30667bf3 AM |
3049 | /* For a final link, this function is called after we have sized the |
3050 | stubs to provide a value for __gp. */ | |
3051 | ||
3052 | boolean | |
3053 | elf32_hppa_set_gp (abfd, info) | |
3054 | bfd *abfd; | |
3055 | struct bfd_link_info *info; | |
3056 | { | |
83c81bfe | 3057 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3058 | struct elf_link_hash_entry *h; |
3059 | asection *sec; | |
3060 | bfd_vma gp_val; | |
3061 | ||
83c81bfe | 3062 | htab = hppa_link_hash_table (info); |
ebe50bae | 3063 | h = elf_link_hash_lookup (&htab->elf, "$global$", false, false, false); |
30667bf3 | 3064 | |
df8634e3 AM |
3065 | if (h != NULL |
3066 | && (h->root.type == bfd_link_hash_defined | |
3067 | || h->root.type == bfd_link_hash_defweak)) | |
30667bf3 AM |
3068 | { |
3069 | gp_val = h->root.u.def.value; | |
3070 | sec = h->root.u.def.section; | |
3071 | } | |
3072 | else | |
3073 | { | |
74d1c347 AM |
3074 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
3075 | or .data, if these sections exist. In the case of choosing | |
3076 | .plt try to make the LTP ideal for addressing anywhere in the | |
3077 | .plt or .got with a 14 bit signed offset. Typically, the end | |
3078 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
3079 | if either the .plt or .got is larger than 0x2000. If both | |
3080 | the .plt and .got are smaller than 0x2000, choose the end of | |
3081 | the .plt section. */ | |
3082 | ||
83c81bfe | 3083 | sec = htab->splt; |
74d1c347 | 3084 | if (sec != NULL) |
30667bf3 | 3085 | { |
74d1c347 AM |
3086 | gp_val = sec->_raw_size; |
3087 | if (gp_val > 0x2000 | |
83c81bfe | 3088 | || (htab->sgot && htab->sgot->_raw_size > 0x2000)) |
74d1c347 AM |
3089 | { |
3090 | gp_val = 0x2000; | |
3091 | } | |
3092 | } | |
3093 | else | |
3094 | { | |
3095 | gp_val = 0; | |
83c81bfe | 3096 | sec = htab->sgot; |
74d1c347 AM |
3097 | if (sec != NULL) |
3098 | { | |
3099 | /* We know we don't have a .plt. If .got is large, | |
3100 | offset our LTP. */ | |
3101 | if (sec->_raw_size > 0x2000) | |
3102 | gp_val = 0x2000; | |
3103 | } | |
3104 | else | |
3105 | { | |
3106 | /* No .plt or .got. Who cares what the LTP is? */ | |
3107 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3108 | } | |
30667bf3 | 3109 | } |
df8634e3 AM |
3110 | |
3111 | if (h != NULL) | |
3112 | { | |
3113 | h->root.type = bfd_link_hash_defined; | |
3114 | h->root.u.def.value = gp_val; | |
3115 | if (sec != NULL) | |
3116 | h->root.u.def.section = sec; | |
3117 | else | |
3118 | h->root.u.def.section = bfd_abs_section_ptr; | |
3119 | } | |
30667bf3 AM |
3120 | } |
3121 | ||
b32b5d6e | 3122 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
3123 | gp_val += sec->output_section->vma + sec->output_offset; |
3124 | ||
3125 | elf_gp (abfd) = gp_val; | |
30667bf3 AM |
3126 | return true; |
3127 | } | |
3128 | ||
30667bf3 AM |
3129 | /* Build all the stubs associated with the current output file. The |
3130 | stubs are kept in a hash table attached to the main linker hash | |
3131 | table. We also set up the .plt entries for statically linked PIC | |
3132 | functions here. This function is called via hppaelf_finish in the | |
3133 | linker. */ | |
3134 | ||
3135 | boolean | |
3136 | elf32_hppa_build_stubs (info) | |
3137 | struct bfd_link_info *info; | |
3138 | { | |
3139 | asection *stub_sec; | |
3140 | struct bfd_hash_table *table; | |
83c81bfe | 3141 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3142 | |
83c81bfe | 3143 | htab = hppa_link_hash_table (info); |
30667bf3 | 3144 | |
83c81bfe | 3145 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3146 | stub_sec != NULL; |
3147 | stub_sec = stub_sec->next) | |
3148 | { | |
dc810e39 | 3149 | bfd_size_type size; |
30667bf3 AM |
3150 | |
3151 | /* Allocate memory to hold the linker stubs. */ | |
74d1c347 | 3152 | size = stub_sec->_raw_size; |
83c81bfe | 3153 | stub_sec->contents = (unsigned char *) bfd_zalloc (htab->stub_bfd, size); |
30667bf3 AM |
3154 | if (stub_sec->contents == NULL && size != 0) |
3155 | return false; | |
74d1c347 | 3156 | stub_sec->_raw_size = 0; |
30667bf3 AM |
3157 | } |
3158 | ||
3159 | /* Build the stubs as directed by the stub hash table. */ | |
83c81bfe | 3160 | table = &htab->stub_hash_table; |
30667bf3 AM |
3161 | bfd_hash_traverse (table, hppa_build_one_stub, info); |
3162 | ||
3163 | return true; | |
3164 | } | |
3165 | ||
c46b7515 AM |
3166 | /* Perform a final link. */ |
3167 | ||
3168 | static boolean | |
3169 | elf32_hppa_final_link (abfd, info) | |
3170 | bfd *abfd; | |
3171 | struct bfd_link_info *info; | |
3172 | { | |
3173 | asection *s; | |
3174 | ||
4dc86686 AM |
3175 | /* Invoke the regular ELF linker to do all the work. */ |
3176 | if (!bfd_elf32_bfd_final_link (abfd, info)) | |
c46b7515 AM |
3177 | return false; |
3178 | ||
3179 | /* If we're producing a final executable, sort the contents of the | |
3180 | unwind section. Magic section names, but this is much safer than | |
3181 | having elf32_hppa_relocate_section remember where SEGREL32 relocs | |
3182 | occurred. Consider what happens if someone inept creates a | |
3183 | linker script that puts unwind information in .text. */ | |
3184 | s = bfd_get_section_by_name (abfd, ".PARISC.unwind"); | |
3185 | if (s != NULL) | |
3186 | { | |
3187 | bfd_size_type size; | |
3188 | char *contents; | |
3189 | ||
3190 | size = s->_raw_size; | |
3191 | contents = bfd_malloc (size); | |
3192 | if (contents == NULL) | |
3193 | return false; | |
3194 | ||
3195 | if (! bfd_get_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3196 | return false; | |
3197 | ||
dc810e39 | 3198 | qsort (contents, (size_t) (size / 16), 16, hppa_unwind_entry_compare); |
c46b7515 AM |
3199 | |
3200 | if (! bfd_set_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3201 | return false; | |
3202 | } | |
3203 | return true; | |
3204 | } | |
3205 | ||
3206 | /* Record the lowest address for the data and text segments. */ | |
3207 | ||
3208 | static void | |
3209 | hppa_record_segment_addr (abfd, section, data) | |
3210 | bfd *abfd ATTRIBUTE_UNUSED; | |
3211 | asection *section; | |
3212 | PTR data; | |
3213 | { | |
83c81bfe | 3214 | struct elf32_hppa_link_hash_table *htab; |
c46b7515 | 3215 | |
83c81bfe | 3216 | htab = (struct elf32_hppa_link_hash_table *) data; |
c46b7515 AM |
3217 | |
3218 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3219 | { | |
3220 | bfd_vma value = section->vma - section->filepos; | |
3221 | ||
3222 | if ((section->flags & SEC_READONLY) != 0) | |
3223 | { | |
83c81bfe AM |
3224 | if (value < htab->text_segment_base) |
3225 | htab->text_segment_base = value; | |
c46b7515 AM |
3226 | } |
3227 | else | |
3228 | { | |
83c81bfe AM |
3229 | if (value < htab->data_segment_base) |
3230 | htab->data_segment_base = value; | |
c46b7515 AM |
3231 | } |
3232 | } | |
3233 | } | |
3234 | ||
30667bf3 AM |
3235 | /* Perform a relocation as part of a final link. */ |
3236 | ||
3237 | static bfd_reloc_status_type | |
83c81bfe | 3238 | final_link_relocate (input_section, contents, rel, value, htab, sym_sec, h) |
30667bf3 AM |
3239 | asection *input_section; |
3240 | bfd_byte *contents; | |
3241 | const Elf_Internal_Rela *rel; | |
3242 | bfd_vma value; | |
83c81bfe | 3243 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3244 | asection *sym_sec; |
3245 | struct elf32_hppa_link_hash_entry *h; | |
3246 | { | |
3247 | int insn; | |
3248 | unsigned int r_type = ELF32_R_TYPE (rel->r_info); | |
3249 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; | |
3250 | int r_format = howto->bitsize; | |
3251 | enum hppa_reloc_field_selector_type_alt r_field; | |
3252 | bfd *input_bfd = input_section->owner; | |
3253 | bfd_vma offset = rel->r_offset; | |
3254 | bfd_vma max_branch_offset = 0; | |
3255 | bfd_byte *hit_data = contents + offset; | |
3256 | bfd_signed_vma addend = rel->r_addend; | |
3257 | bfd_vma location; | |
3258 | struct elf32_hppa_stub_hash_entry *stub_entry = NULL; | |
3259 | int val; | |
3260 | ||
3261 | if (r_type == R_PARISC_NONE) | |
3262 | return bfd_reloc_ok; | |
3263 | ||
3264 | insn = bfd_get_32 (input_bfd, hit_data); | |
3265 | ||
3266 | /* Find out where we are and where we're going. */ | |
3267 | location = (offset + | |
3268 | input_section->output_offset + | |
3269 | input_section->output_section->vma); | |
3270 | ||
3271 | switch (r_type) | |
3272 | { | |
3273 | case R_PARISC_PCREL12F: | |
3274 | case R_PARISC_PCREL17F: | |
3275 | case R_PARISC_PCREL22F: | |
3276 | /* If this is a call to a function defined in another dynamic | |
3277 | library, or if it is a call to a PIC function in the same | |
74d1c347 AM |
3278 | object, or if this is a shared link and it is a call to a |
3279 | weak symbol which may or may not be in the same object, then | |
3280 | find the import stub in the stub hash. */ | |
30667bf3 AM |
3281 | if (sym_sec == NULL |
3282 | || sym_sec->output_section == NULL | |
12cca0d2 AM |
3283 | || (h != NULL |
3284 | && ((h->maybe_pic_call | |
3285 | && !(input_section->flags & SEC_HAS_GOT_REF)) | |
3286 | || (h->elf.root.type == bfd_link_hash_defweak | |
3287 | && h->elf.dynindx != -1 | |
3288 | && h->elf.plt.offset != (bfd_vma) -1)))) | |
30667bf3 AM |
3289 | { |
3290 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3291 | h, rel, htab); |
30667bf3 AM |
3292 | if (stub_entry != NULL) |
3293 | { | |
3294 | value = (stub_entry->stub_offset | |
3295 | + stub_entry->stub_sec->output_offset | |
3296 | + stub_entry->stub_sec->output_section->vma); | |
3297 | addend = 0; | |
3298 | } | |
3299 | else if (sym_sec == NULL && h != NULL | |
3300 | && h->elf.root.type == bfd_link_hash_undefweak) | |
3301 | { | |
db20fd76 AM |
3302 | /* It's OK if undefined weak. Calls to undefined weak |
3303 | symbols behave as if the "called" function | |
3304 | immediately returns. We can thus call to a weak | |
3305 | function without first checking whether the function | |
3306 | is defined. */ | |
30667bf3 | 3307 | value = location; |
db20fd76 | 3308 | addend = 8; |
30667bf3 AM |
3309 | } |
3310 | else | |
3311 | return bfd_reloc_notsupported; | |
3312 | } | |
3313 | /* Fall thru. */ | |
3314 | ||
3315 | case R_PARISC_PCREL21L: | |
3316 | case R_PARISC_PCREL17C: | |
3317 | case R_PARISC_PCREL17R: | |
3318 | case R_PARISC_PCREL14R: | |
3319 | case R_PARISC_PCREL14F: | |
3320 | /* Make it a pc relative offset. */ | |
3321 | value -= location; | |
3322 | addend -= 8; | |
3323 | break; | |
3324 | ||
3325 | case R_PARISC_DPREL21L: | |
3326 | case R_PARISC_DPREL14R: | |
3327 | case R_PARISC_DPREL14F: | |
3328 | /* For all the DP relative relocations, we need to examine the symbol's | |
3329 | section. If it's a code section, then "data pointer relative" makes | |
3330 | no sense. In that case we don't adjust the "value", and for 21 bit | |
3331 | addil instructions, we change the source addend register from %dp to | |
3332 | %r0. This situation commonly arises when a variable's "constness" | |
3333 | is declared differently from the way the variable is defined. For | |
3334 | instance: "extern int foo" with foo defined as "const int foo". */ | |
3335 | if (sym_sec == NULL) | |
3336 | break; | |
3337 | if ((sym_sec->flags & SEC_CODE) != 0) | |
3338 | { | |
3339 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3340 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3341 | { | |
3342 | insn &= ~ (0x1f << 21); | |
74d1c347 | 3343 | #if 1 /* debug them. */ |
30667bf3 AM |
3344 | (*_bfd_error_handler) |
3345 | (_("%s(%s+0x%lx): fixing %s"), | |
8f615d07 | 3346 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3347 | input_section->name, |
3348 | (long) rel->r_offset, | |
3349 | howto->name); | |
3350 | #endif | |
3351 | } | |
3352 | /* Now try to make things easy for the dynamic linker. */ | |
3353 | ||
3354 | break; | |
3355 | } | |
74d1c347 | 3356 | /* Fall thru. */ |
30667bf3 AM |
3357 | |
3358 | case R_PARISC_DLTIND21L: | |
3359 | case R_PARISC_DLTIND14R: | |
3360 | case R_PARISC_DLTIND14F: | |
3361 | value -= elf_gp (input_section->output_section->owner); | |
3362 | break; | |
3363 | ||
c46b7515 AM |
3364 | case R_PARISC_SEGREL32: |
3365 | if ((sym_sec->flags & SEC_CODE) != 0) | |
83c81bfe | 3366 | value -= htab->text_segment_base; |
c46b7515 | 3367 | else |
83c81bfe | 3368 | value -= htab->data_segment_base; |
c46b7515 AM |
3369 | break; |
3370 | ||
30667bf3 AM |
3371 | default: |
3372 | break; | |
3373 | } | |
3374 | ||
3375 | switch (r_type) | |
3376 | { | |
3377 | case R_PARISC_DIR32: | |
47d89dba | 3378 | case R_PARISC_DIR14F: |
30667bf3 AM |
3379 | case R_PARISC_DIR17F: |
3380 | case R_PARISC_PCREL17C: | |
3381 | case R_PARISC_PCREL14F: | |
3382 | case R_PARISC_DPREL14F: | |
3383 | case R_PARISC_PLABEL32: | |
3384 | case R_PARISC_DLTIND14F: | |
3385 | case R_PARISC_SEGBASE: | |
3386 | case R_PARISC_SEGREL32: | |
3387 | r_field = e_fsel; | |
3388 | break; | |
3389 | ||
3390 | case R_PARISC_DIR21L: | |
3391 | case R_PARISC_PCREL21L: | |
3392 | case R_PARISC_DPREL21L: | |
3393 | case R_PARISC_PLABEL21L: | |
3394 | case R_PARISC_DLTIND21L: | |
3395 | r_field = e_lrsel; | |
3396 | break; | |
3397 | ||
3398 | case R_PARISC_DIR17R: | |
3399 | case R_PARISC_PCREL17R: | |
3400 | case R_PARISC_DIR14R: | |
3401 | case R_PARISC_PCREL14R: | |
3402 | case R_PARISC_DPREL14R: | |
3403 | case R_PARISC_PLABEL14R: | |
3404 | case R_PARISC_DLTIND14R: | |
3405 | r_field = e_rrsel; | |
3406 | break; | |
3407 | ||
3408 | case R_PARISC_PCREL12F: | |
3409 | case R_PARISC_PCREL17F: | |
3410 | case R_PARISC_PCREL22F: | |
3411 | r_field = e_fsel; | |
3412 | ||
3413 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3414 | { | |
3415 | max_branch_offset = (1 << (17-1)) << 2; | |
3416 | } | |
3417 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3418 | { | |
3419 | max_branch_offset = (1 << (12-1)) << 2; | |
3420 | } | |
3421 | else | |
3422 | { | |
3423 | max_branch_offset = (1 << (22-1)) << 2; | |
3424 | } | |
3425 | ||
3426 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3427 | undefined syms. We've already checked for a stub for the | |
3428 | shared undefined case. */ | |
3429 | if (sym_sec == NULL) | |
3430 | break; | |
3431 | ||
3432 | /* If the branch is out of reach, then redirect the | |
3433 | call to the local stub for this function. */ | |
3434 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3435 | { | |
3436 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3437 | h, rel, htab); |
30667bf3 AM |
3438 | if (stub_entry == NULL) |
3439 | return bfd_reloc_notsupported; | |
3440 | ||
3441 | /* Munge up the value and addend so that we call the stub | |
3442 | rather than the procedure directly. */ | |
3443 | value = (stub_entry->stub_offset | |
3444 | + stub_entry->stub_sec->output_offset | |
3445 | + stub_entry->stub_sec->output_section->vma | |
3446 | - location); | |
3447 | addend = -8; | |
3448 | } | |
3449 | break; | |
3450 | ||
3451 | /* Something we don't know how to handle. */ | |
3452 | default: | |
3453 | return bfd_reloc_notsupported; | |
3454 | } | |
3455 | ||
3456 | /* Make sure we can reach the stub. */ | |
3457 | if (max_branch_offset != 0 | |
3458 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3459 | { | |
3460 | (*_bfd_error_handler) | |
3461 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), | |
8f615d07 | 3462 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3463 | input_section->name, |
3464 | (long) rel->r_offset, | |
3465 | stub_entry->root.string); | |
ce757d15 | 3466 | bfd_set_error (bfd_error_bad_value); |
30667bf3 AM |
3467 | return bfd_reloc_notsupported; |
3468 | } | |
3469 | ||
3470 | val = hppa_field_adjust (value, addend, r_field); | |
3471 | ||
3472 | switch (r_type) | |
3473 | { | |
3474 | case R_PARISC_PCREL12F: | |
3475 | case R_PARISC_PCREL17C: | |
3476 | case R_PARISC_PCREL17F: | |
3477 | case R_PARISC_PCREL17R: | |
3478 | case R_PARISC_PCREL22F: | |
3479 | case R_PARISC_DIR17F: | |
3480 | case R_PARISC_DIR17R: | |
3481 | /* This is a branch. Divide the offset by four. | |
3482 | Note that we need to decide whether it's a branch or | |
3483 | otherwise by inspecting the reloc. Inspecting insn won't | |
3484 | work as insn might be from a .word directive. */ | |
3485 | val >>= 2; | |
3486 | break; | |
3487 | ||
3488 | default: | |
3489 | break; | |
3490 | } | |
3491 | ||
3492 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3493 | ||
3494 | /* Update the instruction word. */ | |
74d1c347 | 3495 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3496 | return bfd_reloc_ok; |
3497 | } | |
3498 | ||
30667bf3 AM |
3499 | /* Relocate an HPPA ELF section. */ |
3500 | ||
3501 | static boolean | |
3502 | elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section, | |
3503 | contents, relocs, local_syms, local_sections) | |
3504 | bfd *output_bfd; | |
3505 | struct bfd_link_info *info; | |
3506 | bfd *input_bfd; | |
3507 | asection *input_section; | |
3508 | bfd_byte *contents; | |
3509 | Elf_Internal_Rela *relocs; | |
3510 | Elf_Internal_Sym *local_syms; | |
3511 | asection **local_sections; | |
3512 | { | |
30667bf3 | 3513 | bfd_vma *local_got_offsets; |
83c81bfe | 3514 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3515 | Elf_Internal_Shdr *symtab_hdr; |
3516 | Elf_Internal_Rela *rel; | |
3517 | Elf_Internal_Rela *relend; | |
30667bf3 AM |
3518 | |
3519 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3520 | ||
83c81bfe | 3521 | htab = hppa_link_hash_table (info); |
74d1c347 | 3522 | local_got_offsets = elf_local_got_offsets (input_bfd); |
30667bf3 AM |
3523 | |
3524 | rel = relocs; | |
3525 | relend = relocs + input_section->reloc_count; | |
3526 | for (; rel < relend; rel++) | |
3527 | { | |
3528 | unsigned int r_type; | |
3529 | reloc_howto_type *howto; | |
3530 | unsigned int r_symndx; | |
3531 | struct elf32_hppa_link_hash_entry *h; | |
3532 | Elf_Internal_Sym *sym; | |
3533 | asection *sym_sec; | |
3534 | bfd_vma relocation; | |
3535 | bfd_reloc_status_type r; | |
3536 | const char *sym_name; | |
74d1c347 | 3537 | boolean plabel; |
30667bf3 AM |
3538 | |
3539 | r_type = ELF32_R_TYPE (rel->r_info); | |
3540 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3541 | { | |
3542 | bfd_set_error (bfd_error_bad_value); | |
3543 | return false; | |
3544 | } | |
3545 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3546 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3547 | continue; | |
3548 | ||
3549 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3550 | ||
3551 | if (info->relocateable) | |
3552 | { | |
3ac8354b | 3553 | /* This is a relocatable link. We don't have to change |
30667bf3 AM |
3554 | anything, unless the reloc is against a section symbol, |
3555 | in which case we have to adjust according to where the | |
3556 | section symbol winds up in the output section. */ | |
3557 | if (r_symndx < symtab_hdr->sh_info) | |
3558 | { | |
3559 | sym = local_syms + r_symndx; | |
3560 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3561 | { | |
3562 | sym_sec = local_sections[r_symndx]; | |
3563 | rel->r_addend += sym_sec->output_offset; | |
3564 | } | |
3565 | } | |
3566 | continue; | |
3567 | } | |
3568 | ||
3569 | /* This is a final link. */ | |
3570 | h = NULL; | |
3571 | sym = NULL; | |
3572 | sym_sec = NULL; | |
3573 | if (r_symndx < symtab_hdr->sh_info) | |
3574 | { | |
3575 | /* This is a local symbol, h defaults to NULL. */ | |
3576 | sym = local_syms + r_symndx; | |
3577 | sym_sec = local_sections[r_symndx]; | |
3578 | relocation = ((ELF_ST_TYPE (sym->st_info) == STT_SECTION | |
3579 | ? 0 : sym->st_value) | |
3580 | + sym_sec->output_offset | |
3581 | + sym_sec->output_section->vma); | |
3582 | } | |
3583 | else | |
3584 | { | |
3585 | int indx; | |
3586 | ||
3587 | /* It's a global; Find its entry in the link hash. */ | |
3588 | indx = r_symndx - symtab_hdr->sh_info; | |
3589 | h = ((struct elf32_hppa_link_hash_entry *) | |
3590 | elf_sym_hashes (input_bfd)[indx]); | |
3591 | while (h->elf.root.type == bfd_link_hash_indirect | |
3592 | || h->elf.root.type == bfd_link_hash_warning) | |
3593 | h = (struct elf32_hppa_link_hash_entry *) h->elf.root.u.i.link; | |
3594 | ||
3595 | relocation = 0; | |
3596 | if (h->elf.root.type == bfd_link_hash_defined | |
3597 | || h->elf.root.type == bfd_link_hash_defweak) | |
3598 | { | |
3599 | sym_sec = h->elf.root.u.def.section; | |
3600 | /* If sym_sec->output_section is NULL, then it's a | |
3601 | symbol defined in a shared library. */ | |
3602 | if (sym_sec->output_section != NULL) | |
3603 | relocation = (h->elf.root.u.def.value | |
3604 | + sym_sec->output_offset | |
3605 | + sym_sec->output_section->vma); | |
3606 | } | |
3607 | else if (h->elf.root.type == bfd_link_hash_undefweak) | |
3608 | ; | |
3609 | else if (info->shared && !info->no_undefined | |
49e9d0d3 AM |
3610 | && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
3611 | && h->elf.type != STT_PARISC_MILLI) | |
30667bf3 | 3612 | { |
671bae9c | 3613 | if (info->symbolic && !info->allow_shlib_undefined) |
30667bf3 AM |
3614 | if (!((*info->callbacks->undefined_symbol) |
3615 | (info, h->elf.root.root.string, input_bfd, | |
3616 | input_section, rel->r_offset, false))) | |
3617 | return false; | |
3618 | } | |
3619 | else | |
3620 | { | |
3621 | if (!((*info->callbacks->undefined_symbol) | |
3622 | (info, h->elf.root.root.string, input_bfd, | |
3623 | input_section, rel->r_offset, true))) | |
3624 | return false; | |
3625 | } | |
3626 | } | |
3627 | ||
3628 | /* Do any required modifications to the relocation value, and | |
25f72752 AM |
3629 | determine what types of dynamic info we need to output, if |
3630 | any. */ | |
74d1c347 | 3631 | plabel = 0; |
30667bf3 AM |
3632 | switch (r_type) |
3633 | { | |
3634 | case R_PARISC_DLTIND14F: | |
3635 | case R_PARISC_DLTIND14R: | |
3636 | case R_PARISC_DLTIND21L: | |
ce757d15 AM |
3637 | { |
3638 | bfd_vma off; | |
3639 | boolean do_got = 0; | |
3640 | ||
3641 | /* Relocation is to the entry for this symbol in the | |
3642 | global offset table. */ | |
3643 | if (h != NULL) | |
3644 | { | |
3645 | boolean dyn; | |
3646 | ||
3647 | off = h->elf.got.offset; | |
3648 | dyn = htab->elf.dynamic_sections_created; | |
3649 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf)) | |
3650 | { | |
3651 | /* If we aren't going to call finish_dynamic_symbol, | |
3652 | then we need to handle initialisation of the .got | |
3653 | entry and create needed relocs here. Since the | |
3654 | offset must always be a multiple of 4, we use the | |
3655 | least significant bit to record whether we have | |
3656 | initialised it already. */ | |
3657 | if ((off & 1) != 0) | |
3658 | off &= ~1; | |
3659 | else | |
3660 | { | |
3661 | h->elf.got.offset |= 1; | |
3662 | do_got = 1; | |
3663 | } | |
3664 | } | |
3665 | } | |
3666 | else | |
3667 | { | |
3668 | /* Local symbol case. */ | |
3669 | if (local_got_offsets == NULL) | |
3670 | abort (); | |
3671 | ||
3672 | off = local_got_offsets[r_symndx]; | |
3673 | ||
3674 | /* The offset must always be a multiple of 4. We use | |
3675 | the least significant bit to record whether we have | |
3676 | already generated the necessary reloc. */ | |
3677 | if ((off & 1) != 0) | |
3678 | off &= ~1; | |
3679 | else | |
3680 | { | |
3681 | local_got_offsets[r_symndx] |= 1; | |
3682 | do_got = 1; | |
3683 | } | |
3684 | } | |
68fb2e56 | 3685 | |
ce757d15 AM |
3686 | if (do_got) |
3687 | { | |
3688 | if (info->shared) | |
3689 | { | |
3690 | /* Output a dynamic relocation for this GOT entry. | |
3691 | In this case it is relative to the base of the | |
3692 | object because the symbol index is zero. */ | |
3693 | Elf_Internal_Rela outrel; | |
3694 | asection *srelgot = htab->srelgot; | |
3695 | Elf32_External_Rela *loc; | |
3696 | ||
3697 | outrel.r_offset = (off | |
3698 | + htab->sgot->output_offset | |
3699 | + htab->sgot->output_section->vma); | |
3700 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); | |
3701 | outrel.r_addend = relocation; | |
3702 | loc = (Elf32_External_Rela *) srelgot->contents; | |
3703 | loc += srelgot->reloc_count++; | |
3704 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3705 | } | |
3706 | else | |
30667bf3 | 3707 | bfd_put_32 (output_bfd, relocation, |
83c81bfe | 3708 | htab->sgot->contents + off); |
ce757d15 | 3709 | } |
30667bf3 | 3710 | |
ce757d15 AM |
3711 | if (off >= (bfd_vma) -2) |
3712 | abort (); | |
30667bf3 | 3713 | |
ce757d15 AM |
3714 | /* Add the base of the GOT to the relocation value. */ |
3715 | relocation = (off | |
3716 | + htab->sgot->output_offset | |
3717 | + htab->sgot->output_section->vma); | |
3718 | } | |
30667bf3 | 3719 | break; |
252b5132 | 3720 | |
c46b7515 AM |
3721 | case R_PARISC_SEGREL32: |
3722 | /* If this is the first SEGREL relocation, then initialize | |
3723 | the segment base values. */ | |
83c81bfe AM |
3724 | if (htab->text_segment_base == (bfd_vma) -1) |
3725 | bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); | |
c46b7515 AM |
3726 | break; |
3727 | ||
30667bf3 AM |
3728 | case R_PARISC_PLABEL14R: |
3729 | case R_PARISC_PLABEL21L: | |
3730 | case R_PARISC_PLABEL32: | |
ebe50bae | 3731 | if (htab->elf.dynamic_sections_created) |
252b5132 | 3732 | { |
ce757d15 AM |
3733 | bfd_vma off; |
3734 | boolean do_plt = 0; | |
3735 | ||
74d1c347 AM |
3736 | /* If we have a global symbol with a PLT slot, then |
3737 | redirect this relocation to it. */ | |
3738 | if (h != NULL) | |
3739 | { | |
3740 | off = h->elf.plt.offset; | |
4dc86686 | 3741 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, &h->elf)) |
8dea1268 AM |
3742 | { |
3743 | /* In a non-shared link, adjust_dynamic_symbols | |
3744 | isn't called for symbols forced local. We | |
dc810e39 | 3745 | need to write out the plt entry here. */ |
8dea1268 AM |
3746 | if ((off & 1) != 0) |
3747 | off &= ~1; | |
3748 | else | |
3749 | { | |
8dea1268 | 3750 | h->elf.plt.offset |= 1; |
ce757d15 | 3751 | do_plt = 1; |
8dea1268 AM |
3752 | } |
3753 | } | |
74d1c347 AM |
3754 | } |
3755 | else | |
3756 | { | |
68fb2e56 AM |
3757 | bfd_vma *local_plt_offsets; |
3758 | ||
3759 | if (local_got_offsets == NULL) | |
3760 | abort (); | |
74d1c347 | 3761 | |
68fb2e56 AM |
3762 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3763 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3764 | |
3765 | /* As for the local .got entry case, we use the last | |
3766 | bit to record whether we've already initialised | |
3767 | this local .plt entry. */ | |
3768 | if ((off & 1) != 0) | |
3769 | off &= ~1; | |
ce757d15 AM |
3770 | else |
3771 | { | |
3772 | local_plt_offsets[r_symndx] |= 1; | |
3773 | do_plt = 1; | |
3774 | } | |
3775 | } | |
3776 | ||
3777 | if (do_plt) | |
3778 | { | |
3779 | if (info->shared) | |
3780 | { | |
3781 | /* Output a dynamic IPLT relocation for this | |
3782 | PLT entry. */ | |
3783 | Elf_Internal_Rela outrel; | |
3784 | asection *srelplt = htab->srelplt; | |
3785 | Elf32_External_Rela *loc; | |
3786 | ||
3787 | outrel.r_offset = (off | |
3788 | + htab->splt->output_offset | |
3789 | + htab->splt->output_section->vma); | |
3790 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3791 | outrel.r_addend = relocation; | |
3792 | loc = (Elf32_External_Rela *) srelplt->contents; | |
3793 | loc += srelplt->reloc_count++; | |
3794 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3795 | } | |
74d1c347 AM |
3796 | else |
3797 | { | |
3798 | bfd_put_32 (output_bfd, | |
3799 | relocation, | |
83c81bfe | 3800 | htab->splt->contents + off); |
74d1c347 | 3801 | bfd_put_32 (output_bfd, |
83c81bfe AM |
3802 | elf_gp (htab->splt->output_section->owner), |
3803 | htab->splt->contents + off + 4); | |
74d1c347 AM |
3804 | } |
3805 | } | |
3806 | ||
68fb2e56 | 3807 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3808 | abort (); |
74d1c347 AM |
3809 | |
3810 | /* PLABELs contain function pointers. Relocation is to | |
3811 | the entry for the function in the .plt. The magic +2 | |
3812 | offset signals to $$dyncall that the function pointer | |
3813 | is in the .plt and thus has a gp pointer too. | |
3814 | Exception: Undefined PLABELs should have a value of | |
3815 | zero. */ | |
3816 | if (h == NULL | |
3817 | || (h->elf.root.type != bfd_link_hash_undefweak | |
3818 | && h->elf.root.type != bfd_link_hash_undefined)) | |
3819 | { | |
3820 | relocation = (off | |
83c81bfe AM |
3821 | + htab->splt->output_offset |
3822 | + htab->splt->output_section->vma | |
74d1c347 AM |
3823 | + 2); |
3824 | } | |
3825 | plabel = 1; | |
30667bf3 AM |
3826 | } |
3827 | /* Fall through and possibly emit a dynamic relocation. */ | |
3828 | ||
3829 | case R_PARISC_DIR17F: | |
3830 | case R_PARISC_DIR17R: | |
47d89dba | 3831 | case R_PARISC_DIR14F: |
30667bf3 AM |
3832 | case R_PARISC_DIR14R: |
3833 | case R_PARISC_DIR21L: | |
3834 | case R_PARISC_DPREL14F: | |
3835 | case R_PARISC_DPREL14R: | |
3836 | case R_PARISC_DPREL21L: | |
3837 | case R_PARISC_DIR32: | |
3838 | /* The reloc types handled here and this conditional | |
56882138 AM |
3839 | expression must match the code in ..check_relocs and |
3840 | ..discard_relocs. ie. We need exactly the same condition | |
3841 | as in ..check_relocs, with some extra conditions (dynindx | |
3842 | test in this case) to cater for relocs removed by | |
3843 | ..discard_relocs. If you squint, the non-shared test | |
3844 | here does indeed match the one in ..check_relocs, the | |
3845 | difference being that here we test DEF_DYNAMIC as well as | |
3846 | !DEF_REGULAR. All common syms end up with !DEF_REGULAR, | |
3847 | which is why we can't use just that test here. | |
3848 | Conversely, DEF_DYNAMIC can't be used in check_relocs as | |
3849 | there all files have not been loaded. */ | |
446f2863 AM |
3850 | if ((info->shared |
3851 | && (input_section->flags & SEC_ALLOC) != 0 | |
3852 | && (IS_ABSOLUTE_RELOC (r_type) | |
3853 | || (h != NULL | |
3854 | && h->elf.dynindx != -1 | |
3855 | && (!info->symbolic | |
3856 | || (h->elf.elf_link_hash_flags | |
3857 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
3858 | || (!info->shared | |
3859 | && (input_section->flags & SEC_ALLOC) != 0 | |
3860 | && h != NULL | |
3861 | && h->elf.dynindx != -1 | |
3862 | && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
56882138 AM |
3863 | && (((h->elf.elf_link_hash_flags |
3864 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
3865 | && (h->elf.elf_link_hash_flags | |
3866 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
446f2863 AM |
3867 | || h->elf.root.type == bfd_link_hash_undefweak |
3868 | || h->elf.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
3869 | { |
3870 | Elf_Internal_Rela outrel; | |
3871 | boolean skip; | |
98ceb8ce AM |
3872 | asection *sreloc; |
3873 | Elf32_External_Rela *loc; | |
252b5132 | 3874 | |
30667bf3 AM |
3875 | /* When generating a shared object, these relocations |
3876 | are copied into the output file to be resolved at run | |
3877 | time. */ | |
252b5132 | 3878 | |
30667bf3 AM |
3879 | outrel.r_offset = rel->r_offset; |
3880 | outrel.r_addend = rel->r_addend; | |
3881 | skip = false; | |
3882 | if (elf_section_data (input_section)->stab_info != NULL) | |
edd21aca | 3883 | { |
ce757d15 AM |
3884 | bfd_vma off; |
3885 | ||
30667bf3 | 3886 | off = (_bfd_stab_section_offset |
ebe50bae | 3887 | (output_bfd, &htab->elf.stab_info, |
30667bf3 AM |
3888 | input_section, |
3889 | &elf_section_data (input_section)->stab_info, | |
3890 | rel->r_offset)); | |
3891 | if (off == (bfd_vma) -1) | |
3892 | skip = true; | |
3893 | outrel.r_offset = off; | |
edd21aca | 3894 | } |
252b5132 | 3895 | |
30667bf3 AM |
3896 | outrel.r_offset += (input_section->output_offset |
3897 | + input_section->output_section->vma); | |
3898 | ||
3899 | if (skip) | |
252b5132 | 3900 | { |
30667bf3 | 3901 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 3902 | } |
74d1c347 AM |
3903 | else if (h != NULL |
3904 | && h->elf.dynindx != -1 | |
3905 | && (plabel | |
446f2863 AM |
3906 | || !IS_ABSOLUTE_RELOC (r_type) |
3907 | || !info->shared | |
74d1c347 | 3908 | || !info->symbolic |
30667bf3 AM |
3909 | || (h->elf.elf_link_hash_flags |
3910 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
252b5132 | 3911 | { |
30667bf3 AM |
3912 | outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type); |
3913 | } | |
3914 | else /* It's a local symbol, or one marked to become local. */ | |
3915 | { | |
3916 | int indx = 0; | |
edd21aca | 3917 | |
30667bf3 AM |
3918 | /* Add the absolute offset of the symbol. */ |
3919 | outrel.r_addend += relocation; | |
edd21aca | 3920 | |
74d1c347 AM |
3921 | /* Global plabels need to be processed by the |
3922 | dynamic linker so that functions have at most one | |
3923 | fptr. For this reason, we need to differentiate | |
3924 | between global and local plabels, which we do by | |
3925 | providing the function symbol for a global plabel | |
3926 | reloc, and no symbol for local plabels. */ | |
3927 | if (! plabel | |
3928 | && sym_sec != NULL | |
30667bf3 AM |
3929 | && sym_sec->output_section != NULL |
3930 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 3931 | { |
30667bf3 AM |
3932 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
3933 | /* We are turning this relocation into one | |
3934 | against a section symbol, so subtract out the | |
3935 | output section's address but not the offset | |
3936 | of the input section in the output section. */ | |
3937 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 3938 | } |
252b5132 | 3939 | |
30667bf3 AM |
3940 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
3941 | } | |
68fb2e56 AM |
3942 | #if 0 |
3943 | /* EH info can cause unaligned DIR32 relocs. | |
3944 | Tweak the reloc type for the dynamic linker. */ | |
3945 | if (r_type == R_PARISC_DIR32 && (outrel.r_offset & 3) != 0) | |
3946 | outrel.r_info = ELF32_R_INFO (ELF32_R_SYM (outrel.r_info), | |
3947 | R_PARISC_DIR32U); | |
3948 | #endif | |
98ceb8ce AM |
3949 | sreloc = elf_section_data (input_section)->sreloc; |
3950 | if (sreloc == NULL) | |
3951 | abort (); | |
3952 | ||
3ac8354b AM |
3953 | loc = (Elf32_External_Rela *) sreloc->contents; |
3954 | loc += sreloc->reloc_count++; | |
98ceb8ce | 3955 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
30667bf3 AM |
3956 | } |
3957 | break; | |
edd21aca | 3958 | |
30667bf3 AM |
3959 | default: |
3960 | break; | |
3961 | } | |
252b5132 | 3962 | |
30667bf3 | 3963 | r = final_link_relocate (input_section, contents, rel, relocation, |
83c81bfe | 3964 | htab, sym_sec, h); |
252b5132 | 3965 | |
30667bf3 AM |
3966 | if (r == bfd_reloc_ok) |
3967 | continue; | |
252b5132 | 3968 | |
30667bf3 AM |
3969 | if (h != NULL) |
3970 | sym_name = h->elf.root.root.string; | |
3971 | else | |
3972 | { | |
3973 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
3974 | symtab_hdr->sh_link, | |
3975 | sym->st_name); | |
3976 | if (sym_name == NULL) | |
3977 | return false; | |
3978 | if (*sym_name == '\0') | |
3979 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
3980 | } | |
edd21aca | 3981 | |
30667bf3 | 3982 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 3983 | |
30667bf3 AM |
3984 | if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported) |
3985 | { | |
3986 | (*_bfd_error_handler) | |
3987 | (_("%s(%s+0x%lx): cannot handle %s for %s"), | |
8f615d07 | 3988 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3989 | input_section->name, |
3990 | (long) rel->r_offset, | |
3991 | howto->name, | |
3992 | sym_name); | |
8f615d07 AM |
3993 | bfd_set_error (bfd_error_bad_value); |
3994 | return false; | |
30667bf3 AM |
3995 | } |
3996 | else | |
3997 | { | |
3998 | if (!((*info->callbacks->reloc_overflow) | |
3999 | (info, sym_name, howto->name, (bfd_vma) 0, | |
4000 | input_bfd, input_section, rel->r_offset))) | |
4001 | return false; | |
4002 | } | |
4003 | } | |
edd21aca | 4004 | |
30667bf3 AM |
4005 | return true; |
4006 | } | |
252b5132 | 4007 | |
c46b7515 AM |
4008 | /* Comparison function for qsort to sort unwind section during a |
4009 | final link. */ | |
4010 | ||
4011 | static int | |
4012 | hppa_unwind_entry_compare (a, b) | |
4013 | const PTR a; | |
4014 | const PTR b; | |
4015 | { | |
4016 | const bfd_byte *ap, *bp; | |
4017 | unsigned long av, bv; | |
4018 | ||
4019 | ap = (const bfd_byte *) a; | |
4020 | av = (unsigned long) ap[0] << 24; | |
4021 | av |= (unsigned long) ap[1] << 16; | |
4022 | av |= (unsigned long) ap[2] << 8; | |
4023 | av |= (unsigned long) ap[3]; | |
4024 | ||
4025 | bp = (const bfd_byte *) b; | |
4026 | bv = (unsigned long) bp[0] << 24; | |
4027 | bv |= (unsigned long) bp[1] << 16; | |
4028 | bv |= (unsigned long) bp[2] << 8; | |
4029 | bv |= (unsigned long) bp[3]; | |
4030 | ||
4031 | return av < bv ? -1 : av > bv ? 1 : 0; | |
4032 | } | |
4033 | ||
30667bf3 AM |
4034 | /* Finish up dynamic symbol handling. We set the contents of various |
4035 | dynamic sections here. */ | |
252b5132 | 4036 | |
30667bf3 AM |
4037 | static boolean |
4038 | elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym) | |
4039 | bfd *output_bfd; | |
4040 | struct bfd_link_info *info; | |
4041 | struct elf_link_hash_entry *h; | |
4042 | Elf_Internal_Sym *sym; | |
4043 | { | |
83c81bfe | 4044 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 4045 | |
83c81bfe | 4046 | htab = hppa_link_hash_table (info); |
30667bf3 | 4047 | |
30667bf3 AM |
4048 | if (h->plt.offset != (bfd_vma) -1) |
4049 | { | |
4050 | bfd_vma value; | |
30667bf3 | 4051 | |
8dea1268 AM |
4052 | if (h->plt.offset & 1) |
4053 | abort (); | |
4054 | ||
30667bf3 AM |
4055 | /* This symbol has an entry in the procedure linkage table. Set |
4056 | it up. | |
4057 | ||
4058 | The format of a plt entry is | |
74d1c347 AM |
4059 | <funcaddr> |
4060 | <__gp> | |
47d89dba | 4061 | */ |
30667bf3 AM |
4062 | value = 0; |
4063 | if (h->root.type == bfd_link_hash_defined | |
4064 | || h->root.type == bfd_link_hash_defweak) | |
4065 | { | |
4066 | value = h->root.u.def.value; | |
4067 | if (h->root.u.def.section->output_section != NULL) | |
4068 | value += (h->root.u.def.section->output_offset | |
4069 | + h->root.u.def.section->output_section->vma); | |
252b5132 | 4070 | } |
edd21aca | 4071 | |
74d1c347 | 4072 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call) |
30667bf3 | 4073 | { |
47d89dba | 4074 | Elf_Internal_Rela rel; |
3ac8354b | 4075 | Elf32_External_Rela *loc; |
47d89dba | 4076 | |
30667bf3 AM |
4077 | /* Create a dynamic IPLT relocation for this entry. */ |
4078 | rel.r_offset = (h->plt.offset | |
83c81bfe AM |
4079 | + htab->splt->output_offset |
4080 | + htab->splt->output_section->vma); | |
ce757d15 | 4081 | if (h->dynindx != -1) |
74d1c347 | 4082 | { |
47d89dba AM |
4083 | /* To support lazy linking, the function pointer is |
4084 | initialised to point to a special stub stored at the | |
8dea1268 AM |
4085 | end of the .plt. This is not done for plt entries |
4086 | with a base-relative dynamic relocation. */ | |
83c81bfe AM |
4087 | value = (htab->splt->output_offset |
4088 | + htab->splt->output_section->vma | |
4089 | + htab->splt->_raw_size | |
47d89dba AM |
4090 | - sizeof (plt_stub) |
4091 | + PLT_STUB_ENTRY); | |
74d1c347 AM |
4092 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT); |
4093 | rel.r_addend = 0; | |
4094 | } | |
4095 | else | |
4096 | { | |
4097 | /* This symbol has been marked to become local, and is | |
4098 | used by a plabel so must be kept in the .plt. */ | |
4099 | rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
4100 | rel.r_addend = value; | |
4101 | } | |
30667bf3 | 4102 | |
3ac8354b AM |
4103 | loc = (Elf32_External_Rela *) htab->srelplt->contents; |
4104 | loc += htab->srelplt->reloc_count++; | |
83c81bfe | 4105 | bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, |
3ac8354b | 4106 | &rel, loc); |
30667bf3 | 4107 | } |
ce757d15 | 4108 | else |
47d89dba | 4109 | { |
ce757d15 AM |
4110 | bfd_put_32 (htab->splt->owner, |
4111 | value, | |
4112 | htab->splt->contents + h->plt.offset); | |
4113 | bfd_put_32 (htab->splt->owner, | |
4114 | elf_gp (htab->splt->output_section->owner), | |
4115 | htab->splt->contents + h->plt.offset + 4); | |
47d89dba AM |
4116 | } |
4117 | ||
30667bf3 AM |
4118 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
4119 | { | |
4120 | /* Mark the symbol as undefined, rather than as defined in | |
4121 | the .plt section. Leave the value alone. */ | |
4122 | sym->st_shndx = SHN_UNDEF; | |
4123 | } | |
4124 | } | |
edd21aca | 4125 | |
30667bf3 AM |
4126 | if (h->got.offset != (bfd_vma) -1) |
4127 | { | |
4128 | Elf_Internal_Rela rel; | |
3ac8354b | 4129 | Elf32_External_Rela *loc; |
30667bf3 AM |
4130 | |
4131 | /* This symbol has an entry in the global offset table. Set it | |
4132 | up. */ | |
4133 | ||
4134 | rel.r_offset = ((h->got.offset &~ (bfd_vma) 1) | |
83c81bfe AM |
4135 | + htab->sgot->output_offset |
4136 | + htab->sgot->output_section->vma); | |
30667bf3 | 4137 | |
4dc86686 AM |
4138 | /* If this is a -Bsymbolic link and the symbol is defined |
4139 | locally or was forced to be local because of a version file, | |
4140 | we just want to emit a RELATIVE reloc. The entry in the | |
4141 | global offset table will already have been initialized in the | |
4142 | relocate_section function. */ | |
4143 | if (info->shared | |
4144 | && (info->symbolic || h->dynindx == -1) | |
4145 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
30667bf3 | 4146 | { |
74d1c347 | 4147 | rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
4148 | rel.r_addend = (h->root.u.def.value |
4149 | + h->root.u.def.section->output_offset | |
4150 | + h->root.u.def.section->output_section->vma); | |
4151 | } | |
4152 | else | |
4153 | { | |
49e9d0d3 AM |
4154 | if ((h->got.offset & 1) != 0) |
4155 | abort (); | |
30667bf3 | 4156 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
83c81bfe | 4157 | htab->sgot->contents + h->got.offset); |
30667bf3 AM |
4158 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32); |
4159 | rel.r_addend = 0; | |
4160 | } | |
edd21aca | 4161 | |
3ac8354b AM |
4162 | loc = (Elf32_External_Rela *) htab->srelgot->contents; |
4163 | loc += htab->srelgot->reloc_count++; | |
4164 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 | 4165 | } |
edd21aca | 4166 | |
30667bf3 AM |
4167 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
4168 | { | |
4169 | asection *s; | |
4170 | Elf_Internal_Rela rel; | |
3ac8354b | 4171 | Elf32_External_Rela *loc; |
30667bf3 AM |
4172 | |
4173 | /* This symbol needs a copy reloc. Set it up. */ | |
4174 | ||
49e9d0d3 AM |
4175 | if (! (h->dynindx != -1 |
4176 | && (h->root.type == bfd_link_hash_defined | |
4177 | || h->root.type == bfd_link_hash_defweak))) | |
4178 | abort (); | |
30667bf3 | 4179 | |
83c81bfe | 4180 | s = htab->srelbss; |
30667bf3 AM |
4181 | |
4182 | rel.r_offset = (h->root.u.def.value | |
4183 | + h->root.u.def.section->output_offset | |
4184 | + h->root.u.def.section->output_section->vma); | |
4185 | rel.r_addend = 0; | |
4186 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY); | |
3ac8354b AM |
4187 | loc = (Elf32_External_Rela *) s->contents + s->reloc_count++; |
4188 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 AM |
4189 | } |
4190 | ||
4191 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
4192 | if (h->root.root.string[0] == '_' | |
4193 | && (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4194 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)) | |
4195 | { | |
4196 | sym->st_shndx = SHN_ABS; | |
4197 | } | |
4198 | ||
4199 | return true; | |
4200 | } | |
4201 | ||
98ceb8ce AM |
4202 | /* Used to decide how to sort relocs in an optimal manner for the |
4203 | dynamic linker, before writing them out. */ | |
4204 | ||
4205 | static enum elf_reloc_type_class | |
4206 | elf32_hppa_reloc_type_class (rela) | |
4207 | const Elf_Internal_Rela *rela; | |
4208 | { | |
4209 | if (ELF32_R_SYM (rela->r_info) == 0) | |
4210 | return reloc_class_relative; | |
4211 | ||
4212 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4213 | { | |
4214 | case R_PARISC_IPLT: | |
4215 | return reloc_class_plt; | |
4216 | case R_PARISC_COPY: | |
4217 | return reloc_class_copy; | |
4218 | default: | |
4219 | return reloc_class_normal; | |
4220 | } | |
4221 | } | |
4222 | ||
30667bf3 AM |
4223 | /* Finish up the dynamic sections. */ |
4224 | ||
4225 | static boolean | |
4226 | elf32_hppa_finish_dynamic_sections (output_bfd, info) | |
4227 | bfd *output_bfd; | |
4228 | struct bfd_link_info *info; | |
4229 | { | |
4230 | bfd *dynobj; | |
83c81bfe | 4231 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
4232 | asection *sdyn; |
4233 | ||
83c81bfe | 4234 | htab = hppa_link_hash_table (info); |
ebe50bae | 4235 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
4236 | |
4237 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4238 | ||
ebe50bae | 4239 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
4240 | { |
4241 | Elf32_External_Dyn *dyncon, *dynconend; | |
4242 | ||
49e9d0d3 AM |
4243 | if (sdyn == NULL) |
4244 | abort (); | |
30667bf3 AM |
4245 | |
4246 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
4247 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4248 | for (; dyncon < dynconend; dyncon++) | |
edd21aca | 4249 | { |
30667bf3 AM |
4250 | Elf_Internal_Dyn dyn; |
4251 | asection *s; | |
4252 | ||
4253 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4254 | ||
4255 | switch (dyn.d_tag) | |
4256 | { | |
4257 | default: | |
3ac8354b | 4258 | continue; |
30667bf3 AM |
4259 | |
4260 | case DT_PLTGOT: | |
4261 | /* Use PLTGOT to set the GOT register. */ | |
4262 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
30667bf3 AM |
4263 | break; |
4264 | ||
4265 | case DT_JMPREL: | |
83c81bfe | 4266 | s = htab->srelplt; |
30667bf3 | 4267 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
30667bf3 AM |
4268 | break; |
4269 | ||
4270 | case DT_PLTRELSZ: | |
83c81bfe | 4271 | s = htab->srelplt; |
30667bf3 AM |
4272 | if (s->_cooked_size != 0) |
4273 | dyn.d_un.d_val = s->_cooked_size; | |
4274 | else | |
4275 | dyn.d_un.d_val = s->_raw_size; | |
30667bf3 AM |
4276 | break; |
4277 | } | |
3ac8354b AM |
4278 | |
4279 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
edd21aca | 4280 | } |
252b5132 | 4281 | } |
edd21aca | 4282 | |
83c81bfe | 4283 | if (htab->sgot != NULL && htab->sgot->_raw_size != 0) |
30667bf3 | 4284 | { |
74d1c347 AM |
4285 | /* Fill in the first entry in the global offset table. |
4286 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 AM |
4287 | bfd_put_32 (output_bfd, |
4288 | (sdyn != NULL | |
4289 | ? sdyn->output_section->vma + sdyn->output_offset | |
4290 | : (bfd_vma) 0), | |
83c81bfe | 4291 | htab->sgot->contents); |
30667bf3 | 4292 | |
74d1c347 | 4293 | /* The second entry is reserved for use by the dynamic linker. */ |
83c81bfe | 4294 | memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4295 | |
30667bf3 | 4296 | /* Set .got entry size. */ |
83c81bfe | 4297 | elf_section_data (htab->sgot->output_section) |
74d1c347 | 4298 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; |
30667bf3 AM |
4299 | } |
4300 | ||
83c81bfe | 4301 | if (htab->splt != NULL && htab->splt->_raw_size != 0) |
47d89dba AM |
4302 | { |
4303 | /* Set plt entry size. */ | |
83c81bfe | 4304 | elf_section_data (htab->splt->output_section) |
47d89dba AM |
4305 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; |
4306 | ||
83c81bfe | 4307 | if (htab->need_plt_stub) |
47d89dba AM |
4308 | { |
4309 | /* Set up the .plt stub. */ | |
83c81bfe AM |
4310 | memcpy (htab->splt->contents |
4311 | + htab->splt->_raw_size - sizeof (plt_stub), | |
47d89dba AM |
4312 | plt_stub, sizeof (plt_stub)); |
4313 | ||
83c81bfe AM |
4314 | if ((htab->splt->output_offset |
4315 | + htab->splt->output_section->vma | |
4316 | + htab->splt->_raw_size) | |
4317 | != (htab->sgot->output_offset | |
4318 | + htab->sgot->output_section->vma)) | |
47d89dba AM |
4319 | { |
4320 | (*_bfd_error_handler) | |
4321 | (_(".got section not immediately after .plt section")); | |
4322 | return false; | |
4323 | } | |
4324 | } | |
4325 | } | |
30667bf3 | 4326 | |
252b5132 | 4327 | return true; |
30667bf3 | 4328 | } |
252b5132 | 4329 | |
d952f17a AM |
4330 | /* Tweak the OSABI field of the elf header. */ |
4331 | ||
4332 | static void | |
4333 | elf32_hppa_post_process_headers (abfd, link_info) | |
4334 | bfd *abfd; | |
4335 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
4336 | { | |
4337 | Elf_Internal_Ehdr * i_ehdrp; | |
4338 | ||
4339 | i_ehdrp = elf_elfheader (abfd); | |
4340 | ||
4341 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
4342 | { | |
4343 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
4344 | } | |
4345 | else | |
4346 | { | |
4347 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; | |
4348 | } | |
4349 | } | |
4350 | ||
30667bf3 AM |
4351 | /* Called when writing out an object file to decide the type of a |
4352 | symbol. */ | |
4353 | static int | |
4354 | elf32_hppa_elf_get_symbol_type (elf_sym, type) | |
4355 | Elf_Internal_Sym *elf_sym; | |
4356 | int type; | |
4357 | { | |
4358 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4359 | return STT_PARISC_MILLI; | |
4360 | else | |
4361 | return type; | |
252b5132 RH |
4362 | } |
4363 | ||
4364 | /* Misc BFD support code. */ | |
30667bf3 AM |
4365 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4366 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4367 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4368 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4369 | |
252b5132 | 4370 | /* Stuff for the BFD linker. */ |
c46b7515 | 4371 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 AM |
4372 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
4373 | #define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook | |
4374 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol | |
ebe50bae | 4375 | #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol |
30667bf3 AM |
4376 | #define elf_backend_check_relocs elf32_hppa_check_relocs |
4377 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4378 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4379 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4380 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4381 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4382 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4383 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4384 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4385 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
4386 | #define elf_backend_object_p elf32_hppa_object_p | |
4387 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d952f17a | 4388 | #define elf_backend_post_process_headers elf32_hppa_post_process_headers |
30667bf3 | 4389 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
98ceb8ce | 4390 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
30667bf3 AM |
4391 | |
4392 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4393 | #define elf_backend_can_refcount 1 |
30667bf3 AM |
4394 | #define elf_backend_plt_alignment 2 |
4395 | #define elf_backend_want_got_plt 0 | |
4396 | #define elf_backend_plt_readonly 0 | |
4397 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4398 | #define elf_backend_got_header_size 8 |
252b5132 RH |
4399 | |
4400 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4401 | #define TARGET_BIG_NAME "elf32-hppa" | |
4402 | #define ELF_ARCH bfd_arch_hppa | |
4403 | #define ELF_MACHINE_CODE EM_PARISC | |
4404 | #define ELF_MAXPAGESIZE 0x1000 | |
4405 | ||
4406 | #include "elf32-target.h" | |
d952f17a AM |
4407 | |
4408 | #undef TARGET_BIG_SYM | |
4409 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec | |
4410 | #undef TARGET_BIG_NAME | |
4411 | #define TARGET_BIG_NAME "elf32-hppa-linux" | |
4412 | ||
4413 | #define INCLUDED_TARGET_FILE 1 | |
4414 | #include "elf32-target.h" |