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252b5132 | 1 | /* BFD back-end for HP PA-RISC ELF files. |
e5094212 AM |
2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001, |
3 | 2002 Free Software Foundation, Inc. | |
252b5132 | 4 | |
30667bf3 | 5 | Original code by |
252b5132 RH |
6 | Center for Software Science |
7 | Department of Computer Science | |
8 | University of Utah | |
30667bf3 | 9 | Largely rewritten by Alan Modra <[email protected]> |
252b5132 RH |
10 | |
11 | This file is part of BFD, the Binary File Descriptor library. | |
12 | ||
13 | This program is free software; you can redistribute it and/or modify | |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; either version 2 of the License, or | |
16 | (at your option) any later version. | |
17 | ||
18 | This program is distributed in the hope that it will be useful, | |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
22 | ||
23 | You should have received a copy of the GNU General Public License | |
24 | along with this program; if not, write to the Free Software | |
25 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
26 | ||
27 | #include "bfd.h" | |
28 | #include "sysdep.h" | |
252b5132 RH |
29 | #include "libbfd.h" |
30 | #include "elf-bfd.h" | |
9e103c9c JL |
31 | #include "elf/hppa.h" |
32 | #include "libhppa.h" | |
33 | #include "elf32-hppa.h" | |
34 | #define ARCH_SIZE 32 | |
edd21aca | 35 | #include "elf32-hppa.h" |
189c6563 | 36 | #include "elf-hppa.h" |
9e103c9c | 37 | |
74d1c347 AM |
38 | /* In order to gain some understanding of code in this file without |
39 | knowing all the intricate details of the linker, note the | |
40 | following: | |
41 | ||
42 | Functions named elf32_hppa_* are called by external routines, other | |
43 | functions are only called locally. elf32_hppa_* functions appear | |
44 | in this file more or less in the order in which they are called | |
45 | from external routines. eg. elf32_hppa_check_relocs is called | |
46 | early in the link process, elf32_hppa_finish_dynamic_sections is | |
47 | one of the last functions. */ | |
48 | ||
edd21aca | 49 | /* We use two hash tables to hold information for linking PA ELF objects. |
252b5132 RH |
50 | |
51 | The first is the elf32_hppa_link_hash_table which is derived | |
52 | from the standard ELF linker hash table. We use this as a place to | |
53 | attach other hash tables and static information. | |
54 | ||
55 | The second is the stub hash table which is derived from the | |
56 | base BFD hash table. The stub hash table holds the information | |
30667bf3 AM |
57 | necessary to build the linker stubs during a link. |
58 | ||
59 | There are a number of different stubs generated by the linker. | |
60 | ||
61 | Long branch stub: | |
62 | : ldil LR'X,%r1 | |
63 | : be,n RR'X(%sr4,%r1) | |
64 | ||
65 | PIC long branch stub: | |
66 | : b,l .+8,%r1 | |
3ee1d854 AM |
67 | : addil LR'X - ($PIC_pcrel$0 - 4),%r1 |
68 | : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1) | |
30667bf3 AM |
69 | |
70 | Import stub to call shared library routine from normal object file | |
71 | (single sub-space version) | |
3ee1d854 AM |
72 | : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point |
73 | : ldw RR'lt_ptr+ltoff(%r1),%r21 | |
46fe4e66 | 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 | |
46fe4e66 | 81 | : bv %r0(%r21) |
3ee1d854 | 82 | : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. |
30667bf3 AM |
83 | |
84 | Import stub to call shared library routine from normal object file | |
85 | (multiple sub-space support) | |
3ee1d854 AM |
86 | : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point |
87 | : ldw RR'lt_ptr+ltoff(%r1),%r21 | |
88 | : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. | |
30667bf3 AM |
89 | : ldsid (%r21),%r1 |
90 | : mtsp %r1,%sr0 | |
91 | : be 0(%sr0,%r21) ; branch to target | |
92 | : stw %rp,-24(%sp) ; save rp | |
93 | ||
94 | Import stub to call shared library routine from shared library | |
95 | (multiple sub-space support) | |
3ee1d854 AM |
96 | : addil LR'ltoff,%r19 ; get procedure entry point |
97 | : ldw RR'ltoff(%r1),%r21 | |
98 | : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. | |
30667bf3 AM |
99 | : ldsid (%r21),%r1 |
100 | : mtsp %r1,%sr0 | |
101 | : be 0(%sr0,%r21) ; branch to target | |
102 | : stw %rp,-24(%sp) ; save rp | |
103 | ||
104 | Export stub to return from shared lib routine (multiple sub-space support) | |
105 | One of these is created for each exported procedure in a shared | |
106 | library (and stored in the shared lib). Shared lib routines are | |
107 | called via the first instruction in the export stub so that we can | |
108 | do an inter-space return. Not required for single sub-space. | |
109 | : bl,n X,%rp ; trap the return | |
110 | : nop | |
111 | : ldw -24(%sp),%rp ; restore the original rp | |
112 | : ldsid (%rp),%r1 | |
113 | : mtsp %r1,%sr0 | |
74d1c347 | 114 | : be,n 0(%sr0,%rp) ; inter-space return */ |
30667bf3 AM |
115 | |
116 | #define PLT_ENTRY_SIZE 8 | |
117 | #define GOT_ENTRY_SIZE 4 | |
118 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
119 | ||
47d89dba AM |
120 | static const bfd_byte plt_stub[] = |
121 | { | |
122 | 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */ | |
123 | 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */ | |
124 | 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */ | |
125 | #define PLT_STUB_ENTRY (3*4) | |
126 | 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */ | |
127 | 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */ | |
128 | 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */ | |
129 | 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */ | |
130 | }; | |
131 | ||
30667bf3 AM |
132 | /* Section name for stubs is the associated section name plus this |
133 | string. */ | |
134 | #define STUB_SUFFIX ".stub" | |
135 | ||
98ceb8ce AM |
136 | /* We don't need to copy certain PC- or GP-relative dynamic relocs |
137 | into a shared object's dynamic section. All the relocs of the | |
138 | limited class we are interested in, are absolute. */ | |
139 | #ifndef RELATIVE_DYNRELOCS | |
140 | #define RELATIVE_DYNRELOCS 0 | |
446f2863 | 141 | #define IS_ABSOLUTE_RELOC(r_type) 1 |
30667bf3 AM |
142 | #endif |
143 | ||
30667bf3 AM |
144 | enum elf32_hppa_stub_type { |
145 | hppa_stub_long_branch, | |
146 | hppa_stub_long_branch_shared, | |
147 | hppa_stub_import, | |
148 | hppa_stub_import_shared, | |
149 | hppa_stub_export, | |
150 | hppa_stub_none | |
151 | }; | |
152 | ||
30667bf3 | 153 | struct elf32_hppa_stub_hash_entry { |
252b5132 | 154 | |
edd21aca | 155 | /* Base hash table entry structure. */ |
252b5132 RH |
156 | struct bfd_hash_entry root; |
157 | ||
edd21aca AM |
158 | /* The stub section. */ |
159 | asection *stub_sec; | |
160 | ||
161 | /* Offset within stub_sec of the beginning of this stub. */ | |
30667bf3 | 162 | bfd_vma stub_offset; |
252b5132 RH |
163 | |
164 | /* Given the symbol's value and its section we can determine its final | |
165 | value when building the stubs (so the stub knows where to jump. */ | |
30667bf3 | 166 | bfd_vma target_value; |
252b5132 | 167 | asection *target_section; |
30667bf3 AM |
168 | |
169 | enum elf32_hppa_stub_type stub_type; | |
170 | ||
171 | /* The symbol table entry, if any, that this was derived from. */ | |
172 | struct elf32_hppa_link_hash_entry *h; | |
173 | ||
25f72752 AM |
174 | /* Where this stub is being called from, or, in the case of combined |
175 | stub sections, the first input section in the group. */ | |
176 | asection *id_sec; | |
252b5132 RH |
177 | }; |
178 | ||
30667bf3 AM |
179 | struct elf32_hppa_link_hash_entry { |
180 | ||
181 | struct elf_link_hash_entry elf; | |
182 | ||
183 | /* A pointer to the most recently used stub hash entry against this | |
184 | symbol. */ | |
185 | struct elf32_hppa_stub_hash_entry *stub_cache; | |
186 | ||
30667bf3 AM |
187 | /* Used to count relocations for delayed sizing of relocation |
188 | sections. */ | |
189 | struct elf32_hppa_dyn_reloc_entry { | |
190 | ||
191 | /* Next relocation in the chain. */ | |
192 | struct elf32_hppa_dyn_reloc_entry *next; | |
193 | ||
98ceb8ce AM |
194 | /* The input section of the reloc. */ |
195 | asection *sec; | |
30667bf3 AM |
196 | |
197 | /* Number of relocs copied in this section. */ | |
198 | bfd_size_type count; | |
98ceb8ce AM |
199 | |
200 | #if RELATIVE_DYNRELOCS | |
201 | /* Number of relative relocs copied for the input section. */ | |
202 | bfd_size_type relative_count; | |
203 | #endif | |
204 | } *dyn_relocs; | |
30667bf3 | 205 | |
12cca0d2 AM |
206 | /* Set if the only reason we need a .plt entry is for a non-PIC to |
207 | PIC function call. */ | |
74d1c347 AM |
208 | unsigned int pic_call:1; |
209 | ||
210 | /* Set if this symbol is used by a plabel reloc. */ | |
211 | unsigned int plabel:1; | |
30667bf3 AM |
212 | }; |
213 | ||
30667bf3 AM |
214 | struct elf32_hppa_link_hash_table { |
215 | ||
252b5132 | 216 | /* The main hash table. */ |
ebe50bae | 217 | struct elf_link_hash_table elf; |
252b5132 RH |
218 | |
219 | /* The stub hash table. */ | |
edd21aca | 220 | struct bfd_hash_table stub_hash_table; |
252b5132 | 221 | |
30667bf3 AM |
222 | /* Linker stub bfd. */ |
223 | bfd *stub_bfd; | |
224 | ||
30667bf3 AM |
225 | /* Linker call-backs. */ |
226 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
227 | void (*layout_sections_again) PARAMS ((void)); | |
228 | ||
25f72752 AM |
229 | /* Array to keep track of which stub sections have been created, and |
230 | information on stub grouping. */ | |
231 | struct map_stub { | |
232 | /* This is the section to which stubs in the group will be | |
233 | attached. */ | |
234 | asection *link_sec; | |
235 | /* The stub section. */ | |
236 | asection *stub_sec; | |
25f72752 | 237 | } *stub_group; |
30667bf3 | 238 | |
b4655ea9 AM |
239 | /* Assorted information used by elf32_hppa_size_stubs. */ |
240 | unsigned int bfd_count; | |
241 | int top_index; | |
242 | asection **input_list; | |
243 | Elf_Internal_Sym **all_local_syms; | |
244 | ||
30667bf3 AM |
245 | /* Short-cuts to get to dynamic linker sections. */ |
246 | asection *sgot; | |
247 | asection *srelgot; | |
248 | asection *splt; | |
249 | asection *srelplt; | |
250 | asection *sdynbss; | |
251 | asection *srelbss; | |
47d89dba | 252 | |
c46b7515 AM |
253 | /* Used during a final link to store the base of the text and data |
254 | segments so that we can perform SEGREL relocations. */ | |
255 | bfd_vma text_segment_base; | |
256 | bfd_vma data_segment_base; | |
257 | ||
47d89dba AM |
258 | /* Whether we support multiple sub-spaces for shared libs. */ |
259 | unsigned int multi_subspace:1; | |
260 | ||
067fa4a6 | 261 | /* Flags set when various size branches are detected. Used to |
47d89dba AM |
262 | select suitable defaults for the stub group size. */ |
263 | unsigned int has_12bit_branch:1; | |
264 | unsigned int has_17bit_branch:1; | |
067fa4a6 | 265 | unsigned int has_22bit_branch:1; |
47d89dba AM |
266 | |
267 | /* Set if we need a .plt stub to support lazy dynamic linking. */ | |
268 | unsigned int need_plt_stub:1; | |
ec338859 AM |
269 | |
270 | /* Small local sym to section mapping cache. */ | |
271 | struct sym_sec_cache sym_sec; | |
252b5132 RH |
272 | }; |
273 | ||
30667bf3 AM |
274 | /* Various hash macros and functions. */ |
275 | #define hppa_link_hash_table(p) \ | |
edd21aca | 276 | ((struct elf32_hppa_link_hash_table *) ((p)->hash)) |
252b5132 | 277 | |
30667bf3 AM |
278 | #define hppa_stub_hash_lookup(table, string, create, copy) \ |
279 | ((struct elf32_hppa_stub_hash_entry *) \ | |
280 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
281 | ||
282 | static struct bfd_hash_entry *stub_hash_newfunc | |
283 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
edd21aca | 284 | |
30667bf3 | 285 | static struct bfd_hash_entry *hppa_link_hash_newfunc |
edd21aca | 286 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
252b5132 RH |
287 | |
288 | static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create | |
289 | PARAMS ((bfd *)); | |
290 | ||
e2d34d7d DJ |
291 | static void elf32_hppa_link_hash_table_free |
292 | PARAMS ((struct bfd_link_hash_table *)); | |
293 | ||
30667bf3 AM |
294 | /* Stub handling functions. */ |
295 | static char *hppa_stub_name | |
296 | PARAMS ((const asection *, const asection *, | |
297 | const struct elf32_hppa_link_hash_entry *, | |
298 | const Elf_Internal_Rela *)); | |
edd21aca | 299 | |
30667bf3 AM |
300 | static struct elf32_hppa_stub_hash_entry *hppa_get_stub_entry |
301 | PARAMS ((const asection *, const asection *, | |
302 | struct elf32_hppa_link_hash_entry *, | |
25f72752 AM |
303 | const Elf_Internal_Rela *, |
304 | struct elf32_hppa_link_hash_table *)); | |
edd21aca | 305 | |
30667bf3 | 306 | static struct elf32_hppa_stub_hash_entry *hppa_add_stub |
25f72752 | 307 | PARAMS ((const char *, asection *, struct elf32_hppa_link_hash_table *)); |
30667bf3 AM |
308 | |
309 | static enum elf32_hppa_stub_type hppa_type_of_stub | |
310 | PARAMS ((asection *, const Elf_Internal_Rela *, | |
311 | struct elf32_hppa_link_hash_entry *, bfd_vma)); | |
312 | ||
b34976b6 | 313 | static bfd_boolean hppa_build_one_stub |
30667bf3 AM |
314 | PARAMS ((struct bfd_hash_entry *, PTR)); |
315 | ||
b34976b6 | 316 | static bfd_boolean hppa_size_one_stub |
30667bf3 AM |
317 | PARAMS ((struct bfd_hash_entry *, PTR)); |
318 | ||
30667bf3 | 319 | /* BFD and elf backend functions. */ |
b34976b6 | 320 | static bfd_boolean elf32_hppa_object_p PARAMS ((bfd *)); |
252b5132 | 321 | |
b34976b6 | 322 | static bfd_boolean elf32_hppa_add_symbol_hook |
edd21aca AM |
323 | PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, |
324 | const char **, flagword *, asection **, bfd_vma *)); | |
252b5132 | 325 | |
b34976b6 | 326 | static bfd_boolean elf32_hppa_create_dynamic_sections |
30667bf3 | 327 | PARAMS ((bfd *, struct bfd_link_info *)); |
252b5132 | 328 | |
ebe50bae | 329 | static void elf32_hppa_copy_indirect_symbol |
b48fa14c AM |
330 | PARAMS ((struct elf_backend_data *, struct elf_link_hash_entry *, |
331 | struct elf_link_hash_entry *)); | |
ebe50bae | 332 | |
b34976b6 | 333 | static bfd_boolean elf32_hppa_check_relocs |
30667bf3 AM |
334 | PARAMS ((bfd *, struct bfd_link_info *, |
335 | asection *, const Elf_Internal_Rela *)); | |
336 | ||
337 | static asection *elf32_hppa_gc_mark_hook | |
1e2f5b6e | 338 | PARAMS ((asection *, struct bfd_link_info *, Elf_Internal_Rela *, |
30667bf3 AM |
339 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); |
340 | ||
b34976b6 | 341 | static bfd_boolean elf32_hppa_gc_sweep_hook |
30667bf3 AM |
342 | PARAMS ((bfd *, struct bfd_link_info *, |
343 | asection *, const Elf_Internal_Rela *)); | |
344 | ||
74d1c347 | 345 | static void elf32_hppa_hide_symbol |
b34976b6 | 346 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean)); |
74d1c347 | 347 | |
b34976b6 | 348 | static bfd_boolean elf32_hppa_adjust_dynamic_symbol |
30667bf3 AM |
349 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); |
350 | ||
b34976b6 | 351 | static bfd_boolean mark_PIC_calls |
a8d02d66 AM |
352 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
353 | ||
b34976b6 | 354 | static bfd_boolean allocate_plt_static |
30667bf3 AM |
355 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
356 | ||
b34976b6 | 357 | static bfd_boolean allocate_dynrelocs |
98ceb8ce AM |
358 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
359 | ||
b34976b6 | 360 | static bfd_boolean readonly_dynrelocs |
30667bf3 | 361 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
30667bf3 | 362 | |
b34976b6 | 363 | static bfd_boolean clobber_millicode_symbols |
d5c73c2f AM |
364 | PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *)); |
365 | ||
b34976b6 | 366 | static bfd_boolean elf32_hppa_size_dynamic_sections |
30667bf3 AM |
367 | PARAMS ((bfd *, struct bfd_link_info *)); |
368 | ||
b4655ea9 | 369 | static void group_sections |
b34976b6 | 370 | PARAMS ((struct elf32_hppa_link_hash_table *, bfd_size_type, bfd_boolean)); |
b4655ea9 AM |
371 | |
372 | static int get_local_syms | |
373 | PARAMS ((bfd *, bfd *, struct bfd_link_info *)); | |
374 | ||
b34976b6 | 375 | static bfd_boolean elf32_hppa_final_link |
c46b7515 AM |
376 | PARAMS ((bfd *, struct bfd_link_info *)); |
377 | ||
378 | static void hppa_record_segment_addr | |
379 | PARAMS ((bfd *, asection *, PTR)); | |
380 | ||
30667bf3 AM |
381 | static bfd_reloc_status_type final_link_relocate |
382 | PARAMS ((asection *, bfd_byte *, const Elf_Internal_Rela *, | |
25f72752 | 383 | bfd_vma, struct elf32_hppa_link_hash_table *, asection *, |
30667bf3 AM |
384 | struct elf32_hppa_link_hash_entry *)); |
385 | ||
b34976b6 | 386 | static bfd_boolean elf32_hppa_relocate_section |
30667bf3 AM |
387 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, |
388 | bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
389 | ||
b34976b6 | 390 | static bfd_boolean elf32_hppa_finish_dynamic_symbol |
30667bf3 AM |
391 | PARAMS ((bfd *, struct bfd_link_info *, |
392 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
393 | ||
98ceb8ce AM |
394 | static enum elf_reloc_type_class elf32_hppa_reloc_type_class |
395 | PARAMS ((const Elf_Internal_Rela *)); | |
396 | ||
b34976b6 | 397 | static bfd_boolean elf32_hppa_finish_dynamic_sections |
30667bf3 AM |
398 | PARAMS ((bfd *, struct bfd_link_info *)); |
399 | ||
d952f17a AM |
400 | static void elf32_hppa_post_process_headers |
401 | PARAMS ((bfd *, struct bfd_link_info *)); | |
402 | ||
30667bf3 AM |
403 | static int elf32_hppa_elf_get_symbol_type |
404 | PARAMS ((Elf_Internal_Sym *, int)); | |
252b5132 | 405 | |
252b5132 RH |
406 | /* Assorted hash table functions. */ |
407 | ||
408 | /* Initialize an entry in the stub hash table. */ | |
409 | ||
410 | static struct bfd_hash_entry * | |
30667bf3 | 411 | stub_hash_newfunc (entry, table, string) |
252b5132 RH |
412 | struct bfd_hash_entry *entry; |
413 | struct bfd_hash_table *table; | |
414 | const char *string; | |
415 | { | |
252b5132 RH |
416 | /* Allocate the structure if it has not already been allocated by a |
417 | subclass. */ | |
ebe50bae | 418 | if (entry == NULL) |
30667bf3 | 419 | { |
ebe50bae AM |
420 | entry = bfd_hash_allocate (table, |
421 | sizeof (struct elf32_hppa_stub_hash_entry)); | |
422 | if (entry == NULL) | |
423 | return entry; | |
30667bf3 | 424 | } |
252b5132 RH |
425 | |
426 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
427 | entry = bfd_hash_newfunc (entry, table, string); |
428 | if (entry != NULL) | |
252b5132 | 429 | { |
ebe50bae AM |
430 | struct elf32_hppa_stub_hash_entry *eh; |
431 | ||
252b5132 | 432 | /* Initialize the local fields. */ |
ebe50bae AM |
433 | eh = (struct elf32_hppa_stub_hash_entry *) entry; |
434 | eh->stub_sec = NULL; | |
435 | eh->stub_offset = 0; | |
436 | eh->target_value = 0; | |
437 | eh->target_section = NULL; | |
438 | eh->stub_type = hppa_stub_long_branch; | |
439 | eh->h = NULL; | |
440 | eh->id_sec = NULL; | |
30667bf3 AM |
441 | } |
442 | ||
ebe50bae | 443 | return entry; |
30667bf3 AM |
444 | } |
445 | ||
30667bf3 AM |
446 | /* Initialize an entry in the link hash table. */ |
447 | ||
448 | static struct bfd_hash_entry * | |
449 | hppa_link_hash_newfunc (entry, table, string) | |
450 | struct bfd_hash_entry *entry; | |
451 | struct bfd_hash_table *table; | |
452 | const char *string; | |
453 | { | |
30667bf3 AM |
454 | /* Allocate the structure if it has not already been allocated by a |
455 | subclass. */ | |
ebe50bae | 456 | if (entry == NULL) |
30667bf3 | 457 | { |
ebe50bae AM |
458 | entry = bfd_hash_allocate (table, |
459 | sizeof (struct elf32_hppa_link_hash_entry)); | |
460 | if (entry == NULL) | |
461 | return entry; | |
30667bf3 AM |
462 | } |
463 | ||
464 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
465 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
466 | if (entry != NULL) | |
30667bf3 | 467 | { |
ebe50bae AM |
468 | struct elf32_hppa_link_hash_entry *eh; |
469 | ||
30667bf3 | 470 | /* Initialize the local fields. */ |
ebe50bae AM |
471 | eh = (struct elf32_hppa_link_hash_entry *) entry; |
472 | eh->stub_cache = NULL; | |
473 | eh->dyn_relocs = NULL; | |
ebe50bae AM |
474 | eh->pic_call = 0; |
475 | eh->plabel = 0; | |
252b5132 RH |
476 | } |
477 | ||
ebe50bae | 478 | return entry; |
252b5132 RH |
479 | } |
480 | ||
252b5132 RH |
481 | /* Create the derived linker hash table. The PA ELF port uses the derived |
482 | hash table to keep information specific to the PA ELF linker (without | |
483 | using static variables). */ | |
484 | ||
485 | static struct bfd_link_hash_table * | |
486 | elf32_hppa_link_hash_table_create (abfd) | |
487 | bfd *abfd; | |
488 | { | |
489 | struct elf32_hppa_link_hash_table *ret; | |
dc810e39 | 490 | bfd_size_type amt = sizeof (*ret); |
252b5132 | 491 | |
e2d34d7d | 492 | ret = (struct elf32_hppa_link_hash_table *) bfd_malloc (amt); |
252b5132 RH |
493 | if (ret == NULL) |
494 | return NULL; | |
edd21aca | 495 | |
ebe50bae | 496 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, hppa_link_hash_newfunc)) |
252b5132 | 497 | { |
e2d34d7d | 498 | free (ret); |
252b5132 RH |
499 | return NULL; |
500 | } | |
edd21aca AM |
501 | |
502 | /* Init the stub hash table too. */ | |
30667bf3 | 503 | if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc)) |
edd21aca AM |
504 | return NULL; |
505 | ||
30667bf3 | 506 | ret->stub_bfd = NULL; |
30667bf3 AM |
507 | ret->add_stub_section = NULL; |
508 | ret->layout_sections_again = NULL; | |
25f72752 | 509 | ret->stub_group = NULL; |
30667bf3 AM |
510 | ret->sgot = NULL; |
511 | ret->srelgot = NULL; | |
512 | ret->splt = NULL; | |
513 | ret->srelplt = NULL; | |
514 | ret->sdynbss = NULL; | |
515 | ret->srelbss = NULL; | |
c46b7515 AM |
516 | ret->text_segment_base = (bfd_vma) -1; |
517 | ret->data_segment_base = (bfd_vma) -1; | |
47d89dba AM |
518 | ret->multi_subspace = 0; |
519 | ret->has_12bit_branch = 0; | |
520 | ret->has_17bit_branch = 0; | |
067fa4a6 | 521 | ret->has_22bit_branch = 0; |
47d89dba | 522 | ret->need_plt_stub = 0; |
ec338859 | 523 | ret->sym_sec.abfd = NULL; |
252b5132 | 524 | |
ebe50bae | 525 | return &ret->elf.root; |
252b5132 RH |
526 | } |
527 | ||
e2d34d7d DJ |
528 | /* Free the derived linker hash table. */ |
529 | ||
530 | static void | |
531 | elf32_hppa_link_hash_table_free (hash) | |
532 | struct bfd_link_hash_table *hash; | |
533 | { | |
534 | struct elf32_hppa_link_hash_table *ret | |
535 | = (struct elf32_hppa_link_hash_table *) hash; | |
536 | ||
537 | bfd_hash_table_free (&ret->stub_hash_table); | |
538 | _bfd_generic_link_hash_table_free (hash); | |
539 | } | |
540 | ||
30667bf3 AM |
541 | /* Build a name for an entry in the stub hash table. */ |
542 | ||
edd21aca | 543 | static char * |
30667bf3 | 544 | hppa_stub_name (input_section, sym_sec, hash, rel) |
edd21aca | 545 | const asection *input_section; |
30667bf3 AM |
546 | const asection *sym_sec; |
547 | const struct elf32_hppa_link_hash_entry *hash; | |
548 | const Elf_Internal_Rela *rel; | |
edd21aca AM |
549 | { |
550 | char *stub_name; | |
dc810e39 | 551 | bfd_size_type len; |
edd21aca | 552 | |
30667bf3 AM |
553 | if (hash) |
554 | { | |
555 | len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1; | |
556 | stub_name = bfd_malloc (len); | |
557 | if (stub_name != NULL) | |
558 | { | |
559 | sprintf (stub_name, "%08x_%s+%x", | |
560 | input_section->id & 0xffffffff, | |
561 | hash->elf.root.root.string, | |
562 | (int) rel->r_addend & 0xffffffff); | |
563 | } | |
564 | } | |
565 | else | |
edd21aca | 566 | { |
30667bf3 AM |
567 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
568 | stub_name = bfd_malloc (len); | |
569 | if (stub_name != NULL) | |
570 | { | |
571 | sprintf (stub_name, "%08x_%x:%x+%x", | |
572 | input_section->id & 0xffffffff, | |
573 | sym_sec->id & 0xffffffff, | |
574 | (int) ELF32_R_SYM (rel->r_info) & 0xffffffff, | |
575 | (int) rel->r_addend & 0xffffffff); | |
576 | } | |
edd21aca AM |
577 | } |
578 | return stub_name; | |
579 | } | |
252b5132 | 580 | |
30667bf3 AM |
581 | /* Look up an entry in the stub hash. Stub entries are cached because |
582 | creating the stub name takes a bit of time. */ | |
583 | ||
584 | static struct elf32_hppa_stub_hash_entry * | |
83c81bfe | 585 | hppa_get_stub_entry (input_section, sym_sec, hash, rel, htab) |
30667bf3 AM |
586 | const asection *input_section; |
587 | const asection *sym_sec; | |
588 | struct elf32_hppa_link_hash_entry *hash; | |
589 | const Elf_Internal_Rela *rel; | |
83c81bfe | 590 | struct elf32_hppa_link_hash_table *htab; |
252b5132 | 591 | { |
30667bf3 | 592 | struct elf32_hppa_stub_hash_entry *stub_entry; |
25f72752 AM |
593 | const asection *id_sec; |
594 | ||
595 | /* If this input section is part of a group of sections sharing one | |
596 | stub section, then use the id of the first section in the group. | |
597 | Stub names need to include a section id, as there may well be | |
598 | more than one stub used to reach say, printf, and we need to | |
599 | distinguish between them. */ | |
83c81bfe | 600 | id_sec = htab->stub_group[input_section->id].link_sec; |
edd21aca | 601 | |
30667bf3 AM |
602 | if (hash != NULL && hash->stub_cache != NULL |
603 | && hash->stub_cache->h == hash | |
25f72752 | 604 | && hash->stub_cache->id_sec == id_sec) |
edd21aca | 605 | { |
30667bf3 AM |
606 | stub_entry = hash->stub_cache; |
607 | } | |
608 | else | |
609 | { | |
30667bf3 | 610 | char *stub_name; |
edd21aca | 611 | |
25f72752 | 612 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, rel); |
30667bf3 AM |
613 | if (stub_name == NULL) |
614 | return NULL; | |
edd21aca | 615 | |
83c81bfe | 616 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
b34976b6 | 617 | stub_name, FALSE, FALSE); |
f09ebc7d AM |
618 | if (hash != NULL) |
619 | hash->stub_cache = stub_entry; | |
30667bf3 AM |
620 | |
621 | free (stub_name); | |
edd21aca | 622 | } |
30667bf3 AM |
623 | |
624 | return stub_entry; | |
625 | } | |
626 | ||
30667bf3 AM |
627 | /* Add a new stub entry to the stub hash. Not all fields of the new |
628 | stub entry are initialised. */ | |
629 | ||
630 | static struct elf32_hppa_stub_hash_entry * | |
83c81bfe | 631 | hppa_add_stub (stub_name, section, htab) |
30667bf3 AM |
632 | const char *stub_name; |
633 | asection *section; | |
83c81bfe | 634 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 635 | { |
25f72752 | 636 | asection *link_sec; |
30667bf3 | 637 | asection *stub_sec; |
30667bf3 | 638 | struct elf32_hppa_stub_hash_entry *stub_entry; |
edd21aca | 639 | |
83c81bfe AM |
640 | link_sec = htab->stub_group[section->id].link_sec; |
641 | stub_sec = htab->stub_group[section->id].stub_sec; | |
30667bf3 | 642 | if (stub_sec == NULL) |
edd21aca | 643 | { |
83c81bfe | 644 | stub_sec = htab->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
645 | if (stub_sec == NULL) |
646 | { | |
d4c88bbb | 647 | size_t namelen; |
dc810e39 | 648 | bfd_size_type len; |
30667bf3 AM |
649 | char *s_name; |
650 | ||
d4c88bbb AM |
651 | namelen = strlen (link_sec->name); |
652 | len = namelen + sizeof (STUB_SUFFIX); | |
83c81bfe | 653 | s_name = bfd_alloc (htab->stub_bfd, len); |
30667bf3 AM |
654 | if (s_name == NULL) |
655 | return NULL; | |
656 | ||
d4c88bbb AM |
657 | memcpy (s_name, link_sec->name, namelen); |
658 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
83c81bfe | 659 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
660 | if (stub_sec == NULL) |
661 | return NULL; | |
83c81bfe | 662 | htab->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 663 | } |
83c81bfe | 664 | htab->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 665 | } |
252b5132 | 666 | |
30667bf3 | 667 | /* Enter this entry into the linker stub hash table. */ |
83c81bfe | 668 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
b34976b6 | 669 | TRUE, FALSE); |
30667bf3 AM |
670 | if (stub_entry == NULL) |
671 | { | |
672 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
8f615d07 | 673 | bfd_archive_filename (section->owner), |
30667bf3 AM |
674 | stub_name); |
675 | return NULL; | |
edd21aca AM |
676 | } |
677 | ||
30667bf3 | 678 | stub_entry->stub_sec = stub_sec; |
30667bf3 | 679 | stub_entry->stub_offset = 0; |
25f72752 | 680 | stub_entry->id_sec = link_sec; |
30667bf3 | 681 | return stub_entry; |
edd21aca AM |
682 | } |
683 | ||
30667bf3 AM |
684 | /* Determine the type of stub needed, if any, for a call. */ |
685 | ||
686 | static enum elf32_hppa_stub_type | |
687 | hppa_type_of_stub (input_sec, rel, hash, destination) | |
688 | asection *input_sec; | |
689 | const Elf_Internal_Rela *rel; | |
690 | struct elf32_hppa_link_hash_entry *hash; | |
691 | bfd_vma destination; | |
edd21aca | 692 | { |
edd21aca | 693 | bfd_vma location; |
30667bf3 AM |
694 | bfd_vma branch_offset; |
695 | bfd_vma max_branch_offset; | |
696 | unsigned int r_type; | |
697 | ||
698 | if (hash != NULL | |
067fa4a6 AM |
699 | && hash->elf.plt.offset != (bfd_vma) -1 |
700 | && (hash->elf.dynindx != -1 || hash->pic_call) | |
701 | && !hash->plabel) | |
30667bf3 | 702 | { |
067fa4a6 AM |
703 | /* We need an import stub. Decide between hppa_stub_import |
704 | and hppa_stub_import_shared later. */ | |
30667bf3 AM |
705 | return hppa_stub_import; |
706 | } | |
edd21aca | 707 | |
30667bf3 AM |
708 | /* Determine where the call point is. */ |
709 | location = (input_sec->output_offset | |
710 | + input_sec->output_section->vma | |
711 | + rel->r_offset); | |
edd21aca | 712 | |
30667bf3 AM |
713 | branch_offset = destination - location - 8; |
714 | r_type = ELF32_R_TYPE (rel->r_info); | |
edd21aca | 715 | |
30667bf3 AM |
716 | /* Determine if a long branch stub is needed. parisc branch offsets |
717 | are relative to the second instruction past the branch, ie. +8 | |
718 | bytes on from the branch instruction location. The offset is | |
719 | signed and counts in units of 4 bytes. */ | |
720 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 721 | { |
30667bf3 AM |
722 | max_branch_offset = (1 << (17-1)) << 2; |
723 | } | |
724 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
725 | { | |
726 | max_branch_offset = (1 << (12-1)) << 2; | |
727 | } | |
25f72752 | 728 | else /* R_PARISC_PCREL22F. */ |
30667bf3 AM |
729 | { |
730 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
731 | } |
732 | ||
30667bf3 | 733 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
734 | return hppa_stub_long_branch; |
735 | ||
30667bf3 AM |
736 | return hppa_stub_none; |
737 | } | |
edd21aca | 738 | |
30667bf3 AM |
739 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
740 | IN_ARG contains the link info pointer. */ | |
edd21aca | 741 | |
30667bf3 AM |
742 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
743 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 744 | |
30667bf3 | 745 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 746 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 747 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 748 | |
3ee1d854 AM |
749 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
750 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 751 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 752 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 753 | |
3ee1d854 AM |
754 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
755 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 756 | |
30667bf3 AM |
757 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
758 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
759 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
760 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 761 | |
067fa4a6 | 762 | #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */ |
30667bf3 AM |
763 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
764 | #define NOP 0x08000240 /* nop */ | |
765 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
766 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
767 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 768 | |
30667bf3 AM |
769 | #ifndef R19_STUBS |
770 | #define R19_STUBS 1 | |
771 | #endif | |
edd21aca | 772 | |
30667bf3 AM |
773 | #if R19_STUBS |
774 | #define LDW_R1_DLT LDW_R1_R19 | |
775 | #else | |
776 | #define LDW_R1_DLT LDW_R1_DP | |
777 | #endif | |
edd21aca | 778 | |
b34976b6 | 779 | static bfd_boolean |
30667bf3 AM |
780 | hppa_build_one_stub (gen_entry, in_arg) |
781 | struct bfd_hash_entry *gen_entry; | |
782 | PTR in_arg; | |
783 | { | |
784 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
785 | struct bfd_link_info *info; | |
83c81bfe | 786 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
787 | asection *stub_sec; |
788 | bfd *stub_bfd; | |
789 | bfd_byte *loc; | |
790 | bfd_vma sym_value; | |
74d1c347 | 791 | bfd_vma insn; |
8dea1268 | 792 | bfd_vma off; |
74d1c347 | 793 | int val; |
30667bf3 | 794 | int size; |
edd21aca | 795 | |
30667bf3 AM |
796 | /* Massage our args to the form they really have. */ |
797 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
798 | info = (struct bfd_link_info *) in_arg; | |
799 | ||
83c81bfe | 800 | htab = hppa_link_hash_table (info); |
30667bf3 | 801 | stub_sec = stub_entry->stub_sec; |
edd21aca | 802 | |
30667bf3 | 803 | /* Make a note of the offset within the stubs for this entry. */ |
74d1c347 | 804 | stub_entry->stub_offset = stub_sec->_raw_size; |
30667bf3 | 805 | loc = stub_sec->contents + stub_entry->stub_offset; |
252b5132 | 806 | |
30667bf3 AM |
807 | stub_bfd = stub_sec->owner; |
808 | ||
809 | switch (stub_entry->stub_type) | |
810 | { | |
811 | case hppa_stub_long_branch: | |
812 | /* Create the long branch. A long branch is formed with "ldil" | |
813 | loading the upper bits of the target address into a register, | |
814 | then branching with "be" which adds in the lower bits. | |
815 | The "be" has its delay slot nullified. */ | |
816 | sym_value = (stub_entry->target_value | |
817 | + stub_entry->target_section->output_offset | |
818 | + stub_entry->target_section->output_section->vma); | |
819 | ||
74d1c347 AM |
820 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel); |
821 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); | |
30667bf3 AM |
822 | bfd_put_32 (stub_bfd, insn, loc); |
823 | ||
74d1c347 AM |
824 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel) >> 2; |
825 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); | |
30667bf3 AM |
826 | bfd_put_32 (stub_bfd, insn, loc + 4); |
827 | ||
30667bf3 | 828 | size = 8; |
edd21aca AM |
829 | break; |
830 | ||
30667bf3 AM |
831 | case hppa_stub_long_branch_shared: |
832 | /* Branches are relative. This is where we are going to. */ | |
833 | sym_value = (stub_entry->target_value | |
834 | + stub_entry->target_section->output_offset | |
835 | + stub_entry->target_section->output_section->vma); | |
836 | ||
837 | /* And this is where we are coming from, more or less. */ | |
838 | sym_value -= (stub_entry->stub_offset | |
839 | + stub_sec->output_offset | |
840 | + stub_sec->output_section->vma); | |
841 | ||
74d1c347 | 842 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 843 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 844 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
845 | bfd_put_32 (stub_bfd, insn, loc + 4); |
846 | ||
47d89dba | 847 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 848 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
849 | bfd_put_32 (stub_bfd, insn, loc + 8); |
850 | size = 12; | |
851 | break; | |
edd21aca | 852 | |
30667bf3 AM |
853 | case hppa_stub_import: |
854 | case hppa_stub_import_shared: | |
8dea1268 AM |
855 | off = stub_entry->h->elf.plt.offset; |
856 | if (off >= (bfd_vma) -2) | |
49e9d0d3 | 857 | abort (); |
8dea1268 AM |
858 | |
859 | off &= ~ (bfd_vma) 1; | |
860 | sym_value = (off | |
83c81bfe AM |
861 | + htab->splt->output_offset |
862 | + htab->splt->output_section->vma | |
863 | - elf_gp (htab->splt->output_section->owner)); | |
30667bf3 AM |
864 | |
865 | insn = ADDIL_DP; | |
866 | #if R19_STUBS | |
867 | if (stub_entry->stub_type == hppa_stub_import_shared) | |
868 | insn = ADDIL_R19; | |
869 | #endif | |
47d89dba | 870 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel), |
74d1c347 | 871 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 872 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 873 | |
47d89dba AM |
874 | /* It is critical to use lrsel/rrsel here because we are using |
875 | two different offsets (+0 and +4) from sym_value. If we use | |
876 | lsel/rsel then with unfortunate sym_values we will round | |
877 | sym_value+4 up to the next 2k block leading to a mis-match | |
878 | between the lsel and rsel value. */ | |
879 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel); | |
74d1c347 | 880 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 881 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 882 | |
83c81bfe | 883 | if (htab->multi_subspace) |
30667bf3 | 884 | { |
47d89dba | 885 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 886 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 887 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 888 | |
74d1c347 AM |
889 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
890 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
891 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
892 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 893 | |
30667bf3 AM |
894 | size = 28; |
895 | } | |
896 | else | |
897 | { | |
74d1c347 | 898 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 899 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 900 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 901 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 902 | |
30667bf3 AM |
903 | size = 16; |
904 | } | |
252b5132 | 905 | |
30667bf3 AM |
906 | if (!info->shared |
907 | && stub_entry->h != NULL | |
908 | && stub_entry->h->pic_call) | |
252b5132 | 909 | { |
30667bf3 AM |
910 | /* Build the .plt entry needed to call a PIC function from |
911 | statically linked code. We don't need any relocs. */ | |
912 | bfd *dynobj; | |
913 | struct elf32_hppa_link_hash_entry *eh; | |
914 | bfd_vma value; | |
252b5132 | 915 | |
ebe50bae | 916 | dynobj = htab->elf.dynobj; |
30667bf3 | 917 | eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h; |
252b5132 | 918 | |
49e9d0d3 AM |
919 | if (eh->elf.root.type != bfd_link_hash_defined |
920 | && eh->elf.root.type != bfd_link_hash_defweak) | |
921 | abort (); | |
252b5132 | 922 | |
30667bf3 AM |
923 | value = (eh->elf.root.u.def.value |
924 | + eh->elf.root.u.def.section->output_offset | |
925 | + eh->elf.root.u.def.section->output_section->vma); | |
252b5132 | 926 | |
30667bf3 | 927 | /* Fill in the entry in the procedure linkage table. |
252b5132 | 928 | |
30667bf3 | 929 | The format of a plt entry is |
74d1c347 AM |
930 | <funcaddr> |
931 | <__gp>. */ | |
252b5132 | 932 | |
83c81bfe AM |
933 | bfd_put_32 (htab->splt->owner, value, |
934 | htab->splt->contents + off); | |
935 | value = elf_gp (htab->splt->output_section->owner); | |
936 | bfd_put_32 (htab->splt->owner, value, | |
937 | htab->splt->contents + off + 4); | |
252b5132 | 938 | } |
30667bf3 | 939 | break; |
252b5132 | 940 | |
30667bf3 AM |
941 | case hppa_stub_export: |
942 | /* Branches are relative. This is where we are going to. */ | |
943 | sym_value = (stub_entry->target_value | |
944 | + stub_entry->target_section->output_offset | |
945 | + stub_entry->target_section->output_section->vma); | |
252b5132 | 946 | |
30667bf3 AM |
947 | /* And this is where we are coming from. */ |
948 | sym_value -= (stub_entry->stub_offset | |
949 | + stub_sec->output_offset | |
950 | + stub_sec->output_section->vma); | |
edd21aca | 951 | |
067fa4a6 AM |
952 | if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2)) |
953 | && (!htab->has_22bit_branch | |
954 | || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2)))) | |
30667bf3 | 955 | { |
edd21aca | 956 | (*_bfd_error_handler) |
30667bf3 | 957 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
8f615d07 | 958 | bfd_archive_filename (stub_entry->target_section->owner), |
30667bf3 AM |
959 | stub_sec->name, |
960 | (long) stub_entry->stub_offset, | |
961 | stub_entry->root.string); | |
962 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 963 | return FALSE; |
252b5132 | 964 | } |
30667bf3 | 965 | |
74d1c347 | 966 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
067fa4a6 AM |
967 | if (!htab->has_22bit_branch) |
968 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
969 | else | |
970 | insn = hppa_rebuild_insn ((int) BL22_RP, val, 22); | |
30667bf3 AM |
971 | bfd_put_32 (stub_bfd, insn, loc); |
972 | ||
74d1c347 AM |
973 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
974 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
975 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
976 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
977 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
978 | |
979 | /* Point the function symbol at the stub. */ | |
980 | stub_entry->h->elf.root.u.def.section = stub_sec; | |
74d1c347 | 981 | stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size; |
30667bf3 AM |
982 | |
983 | size = 24; | |
984 | break; | |
985 | ||
986 | default: | |
987 | BFD_FAIL (); | |
b34976b6 | 988 | return FALSE; |
252b5132 RH |
989 | } |
990 | ||
74d1c347 | 991 | stub_sec->_raw_size += size; |
b34976b6 | 992 | return TRUE; |
252b5132 RH |
993 | } |
994 | ||
30667bf3 AM |
995 | #undef LDIL_R1 |
996 | #undef BE_SR4_R1 | |
997 | #undef BL_R1 | |
998 | #undef ADDIL_R1 | |
999 | #undef DEPI_R1 | |
1000 | #undef ADDIL_DP | |
1001 | #undef LDW_R1_R21 | |
1002 | #undef LDW_R1_DLT | |
1003 | #undef LDW_R1_R19 | |
1004 | #undef ADDIL_R19 | |
1005 | #undef LDW_R1_DP | |
1006 | #undef LDSID_R21_R1 | |
1007 | #undef MTSP_R1 | |
1008 | #undef BE_SR0_R21 | |
1009 | #undef STW_RP | |
1010 | #undef BV_R0_R21 | |
1011 | #undef BL_RP | |
1012 | #undef NOP | |
1013 | #undef LDW_RP | |
1014 | #undef LDSID_RP_R1 | |
1015 | #undef BE_SR0_RP | |
252b5132 | 1016 | |
30667bf3 AM |
1017 | /* As above, but don't actually build the stub. Just bump offset so |
1018 | we know stub section sizes. */ | |
1019 | ||
b34976b6 | 1020 | static bfd_boolean |
30667bf3 AM |
1021 | hppa_size_one_stub (gen_entry, in_arg) |
1022 | struct bfd_hash_entry *gen_entry; | |
1023 | PTR in_arg; | |
252b5132 | 1024 | { |
30667bf3 | 1025 | struct elf32_hppa_stub_hash_entry *stub_entry; |
83c81bfe | 1026 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1027 | int size; |
1028 | ||
1029 | /* Massage our args to the form they really have. */ | |
1030 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
83c81bfe | 1031 | htab = (struct elf32_hppa_link_hash_table *) in_arg; |
30667bf3 AM |
1032 | |
1033 | if (stub_entry->stub_type == hppa_stub_long_branch) | |
98ceb8ce | 1034 | size = 8; |
30667bf3 AM |
1035 | else if (stub_entry->stub_type == hppa_stub_long_branch_shared) |
1036 | size = 12; | |
1037 | else if (stub_entry->stub_type == hppa_stub_export) | |
1038 | size = 24; | |
74d1c347 | 1039 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 1040 | { |
83c81bfe | 1041 | if (htab->multi_subspace) |
30667bf3 AM |
1042 | size = 28; |
1043 | else | |
1044 | size = 16; | |
1045 | } | |
252b5132 | 1046 | |
74d1c347 | 1047 | stub_entry->stub_sec->_raw_size += size; |
b34976b6 | 1048 | return TRUE; |
30667bf3 | 1049 | } |
252b5132 | 1050 | |
30667bf3 AM |
1051 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
1052 | Additionally we set the default architecture and machine. */ | |
1053 | ||
b34976b6 | 1054 | static bfd_boolean |
30667bf3 AM |
1055 | elf32_hppa_object_p (abfd) |
1056 | bfd *abfd; | |
1057 | { | |
24a5e751 L |
1058 | Elf_Internal_Ehdr * i_ehdrp; |
1059 | unsigned int flags; | |
252b5132 | 1060 | |
24a5e751 L |
1061 | i_ehdrp = elf_elfheader (abfd); |
1062 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
1063 | { | |
1064 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX) | |
b34976b6 | 1065 | return FALSE; |
24a5e751 L |
1066 | } |
1067 | else | |
1068 | { | |
1069 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
b34976b6 | 1070 | return FALSE; |
24a5e751 L |
1071 | } |
1072 | ||
1073 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
1074 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
1075 | { | |
1076 | case EFA_PARISC_1_0: | |
1077 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
1078 | case EFA_PARISC_1_1: | |
1079 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
1080 | case EFA_PARISC_2_0: | |
1081 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
1082 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
1083 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
1084 | } | |
b34976b6 | 1085 | return TRUE; |
252b5132 RH |
1086 | } |
1087 | ||
252b5132 RH |
1088 | /* Undo the generic ELF code's subtraction of section->vma from the |
1089 | value of each external symbol. */ | |
1090 | ||
b34976b6 | 1091 | static bfd_boolean |
252b5132 | 1092 | elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) |
5f771d47 ILT |
1093 | bfd *abfd ATTRIBUTE_UNUSED; |
1094 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1095 | const Elf_Internal_Sym *sym ATTRIBUTE_UNUSED; | |
1096 | const char **namep ATTRIBUTE_UNUSED; | |
1097 | flagword *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
1098 | asection **secp; |
1099 | bfd_vma *valp; | |
1100 | { | |
1101 | *valp += (*secp)->vma; | |
b34976b6 | 1102 | return TRUE; |
252b5132 RH |
1103 | } |
1104 | ||
30667bf3 AM |
1105 | /* Create the .plt and .got sections, and set up our hash table |
1106 | short-cuts to various dynamic sections. */ | |
1107 | ||
b34976b6 | 1108 | static bfd_boolean |
30667bf3 AM |
1109 | elf32_hppa_create_dynamic_sections (abfd, info) |
1110 | bfd *abfd; | |
1111 | struct bfd_link_info *info; | |
252b5132 | 1112 | { |
83c81bfe | 1113 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 1114 | |
30667bf3 | 1115 | /* Don't try to create the .plt and .got twice. */ |
83c81bfe AM |
1116 | htab = hppa_link_hash_table (info); |
1117 | if (htab->splt != NULL) | |
b34976b6 | 1118 | return TRUE; |
edd21aca | 1119 | |
30667bf3 AM |
1120 | /* Call the generic code to do most of the work. */ |
1121 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
b34976b6 | 1122 | return FALSE; |
252b5132 | 1123 | |
83c81bfe AM |
1124 | htab->splt = bfd_get_section_by_name (abfd, ".plt"); |
1125 | htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
30667bf3 | 1126 | |
83c81bfe AM |
1127 | htab->sgot = bfd_get_section_by_name (abfd, ".got"); |
1128 | htab->srelgot = bfd_make_section (abfd, ".rela.got"); | |
1129 | if (htab->srelgot == NULL | |
1130 | || ! bfd_set_section_flags (abfd, htab->srelgot, | |
30667bf3 AM |
1131 | (SEC_ALLOC |
1132 | | SEC_LOAD | |
1133 | | SEC_HAS_CONTENTS | |
1134 | | SEC_IN_MEMORY | |
1135 | | SEC_LINKER_CREATED | |
1136 | | SEC_READONLY)) | |
83c81bfe | 1137 | || ! bfd_set_section_alignment (abfd, htab->srelgot, 2)) |
b34976b6 | 1138 | return FALSE; |
edd21aca | 1139 | |
83c81bfe AM |
1140 | htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
1141 | htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
30667bf3 | 1142 | |
b34976b6 | 1143 | return TRUE; |
30667bf3 AM |
1144 | } |
1145 | ||
ebe50bae AM |
1146 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1147 | ||
51b64d56 | 1148 | static void |
b48fa14c AM |
1149 | elf32_hppa_copy_indirect_symbol (bed, dir, ind) |
1150 | struct elf_backend_data *bed; | |
ebe50bae AM |
1151 | struct elf_link_hash_entry *dir, *ind; |
1152 | { | |
1153 | struct elf32_hppa_link_hash_entry *edir, *eind; | |
1154 | ||
1155 | edir = (struct elf32_hppa_link_hash_entry *) dir; | |
1156 | eind = (struct elf32_hppa_link_hash_entry *) ind; | |
1157 | ||
bbd7ec4a | 1158 | if (eind->dyn_relocs != NULL) |
ebe50bae | 1159 | { |
bbd7ec4a AM |
1160 | if (edir->dyn_relocs != NULL) |
1161 | { | |
1162 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1163 | struct elf32_hppa_dyn_reloc_entry *p; | |
1164 | ||
1e370bd2 | 1165 | if (ind->root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
1166 | abort (); |
1167 | ||
1168 | /* Add reloc counts against the weak sym to the strong sym | |
1169 | list. Merge any entries against the same section. */ | |
1170 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
1171 | { | |
1172 | struct elf32_hppa_dyn_reloc_entry *q; | |
1173 | ||
1174 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
1175 | if (q->sec == p->sec) | |
1176 | { | |
1177 | #if RELATIVE_DYNRELOCS | |
1178 | q->relative_count += p->relative_count; | |
1179 | #endif | |
1180 | q->count += p->count; | |
1181 | *pp = p->next; | |
1182 | break; | |
1183 | } | |
1184 | if (q == NULL) | |
1185 | pp = &p->next; | |
1186 | } | |
1187 | *pp = edir->dyn_relocs; | |
1188 | } | |
1189 | ||
ebe50bae AM |
1190 | edir->dyn_relocs = eind->dyn_relocs; |
1191 | eind->dyn_relocs = NULL; | |
1192 | } | |
ebe50bae | 1193 | |
b48fa14c | 1194 | _bfd_elf_link_hash_copy_indirect (bed, dir, ind); |
ebe50bae AM |
1195 | } |
1196 | ||
30667bf3 | 1197 | /* Look through the relocs for a section during the first phase, and |
3ac8354b AM |
1198 | calculate needed space in the global offset table, procedure linkage |
1199 | table, and dynamic reloc sections. At this point we haven't | |
1200 | necessarily read all the input files. */ | |
252b5132 | 1201 | |
b34976b6 | 1202 | static bfd_boolean |
30667bf3 AM |
1203 | elf32_hppa_check_relocs (abfd, info, sec, relocs) |
1204 | bfd *abfd; | |
1205 | struct bfd_link_info *info; | |
1206 | asection *sec; | |
1207 | const Elf_Internal_Rela *relocs; | |
252b5132 | 1208 | { |
30667bf3 AM |
1209 | Elf_Internal_Shdr *symtab_hdr; |
1210 | struct elf_link_hash_entry **sym_hashes; | |
30667bf3 AM |
1211 | const Elf_Internal_Rela *rel; |
1212 | const Elf_Internal_Rela *rel_end; | |
83c81bfe | 1213 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1214 | asection *sreloc; |
1215 | asection *stubreloc; | |
1216 | ||
1217 | if (info->relocateable) | |
b34976b6 | 1218 | return TRUE; |
30667bf3 | 1219 | |
83c81bfe | 1220 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1221 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1222 | sym_hashes = elf_sym_hashes (abfd); | |
30667bf3 AM |
1223 | sreloc = NULL; |
1224 | stubreloc = NULL; | |
1225 | ||
1226 | rel_end = relocs + sec->reloc_count; | |
1227 | for (rel = relocs; rel < rel_end; rel++) | |
1228 | { | |
1229 | enum { | |
1230 | NEED_GOT = 1, | |
1231 | NEED_PLT = 2, | |
1232 | NEED_DYNREL = 4, | |
98ceb8ce | 1233 | PLT_PLABEL = 8 |
30667bf3 | 1234 | }; |
edd21aca | 1235 | |
30667bf3 AM |
1236 | unsigned int r_symndx, r_type; |
1237 | struct elf32_hppa_link_hash_entry *h; | |
1238 | int need_entry; | |
252b5132 | 1239 | |
30667bf3 | 1240 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 | 1241 | |
30667bf3 AM |
1242 | if (r_symndx < symtab_hdr->sh_info) |
1243 | h = NULL; | |
1244 | else | |
1245 | h = ((struct elf32_hppa_link_hash_entry *) | |
1246 | sym_hashes[r_symndx - symtab_hdr->sh_info]); | |
252b5132 | 1247 | |
30667bf3 | 1248 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 | 1249 | |
30667bf3 AM |
1250 | switch (r_type) |
1251 | { | |
1252 | case R_PARISC_DLTIND14F: | |
1253 | case R_PARISC_DLTIND14R: | |
1254 | case R_PARISC_DLTIND21L: | |
1255 | /* This symbol requires a global offset table entry. */ | |
1256 | need_entry = NEED_GOT; | |
1257 | ||
1258 | /* Mark this section as containing PIC code. */ | |
1259 | sec->flags |= SEC_HAS_GOT_REF; | |
1260 | break; | |
1261 | ||
1262 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1263 | case R_PARISC_PLABEL21L: | |
1264 | case R_PARISC_PLABEL32: | |
74d1c347 | 1265 | /* If the addend is non-zero, we break badly. */ |
49e9d0d3 AM |
1266 | if (rel->r_addend != 0) |
1267 | abort (); | |
74d1c347 AM |
1268 | |
1269 | /* If we are creating a shared library, then we need to | |
1270 | create a PLT entry for all PLABELs, because PLABELs with | |
1271 | local symbols may be passed via a pointer to another | |
1272 | object. Additionally, output a dynamic relocation | |
4dc86686 AM |
1273 | pointing to the PLT entry. |
1274 | For executables, the original 32-bit ABI allowed two | |
1275 | different styles of PLABELs (function pointers): For | |
1276 | global functions, the PLABEL word points into the .plt | |
1277 | two bytes past a (function address, gp) pair, and for | |
1278 | local functions the PLABEL points directly at the | |
1279 | function. The magic +2 for the first type allows us to | |
1280 | differentiate between the two. As you can imagine, this | |
1281 | is a real pain when it comes to generating code to call | |
1282 | functions indirectly or to compare function pointers. | |
1283 | We avoid the mess by always pointing a PLABEL into the | |
1284 | .plt, even for local functions. */ | |
74d1c347 | 1285 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1286 | break; |
1287 | ||
1288 | case R_PARISC_PCREL12F: | |
83c81bfe | 1289 | htab->has_12bit_branch = 1; |
067fa4a6 AM |
1290 | goto branch_common; |
1291 | ||
30667bf3 AM |
1292 | case R_PARISC_PCREL17C: |
1293 | case R_PARISC_PCREL17F: | |
83c81bfe | 1294 | htab->has_17bit_branch = 1; |
067fa4a6 AM |
1295 | goto branch_common; |
1296 | ||
30667bf3 | 1297 | case R_PARISC_PCREL22F: |
067fa4a6 AM |
1298 | htab->has_22bit_branch = 1; |
1299 | branch_common: | |
47d89dba AM |
1300 | /* Function calls might need to go through the .plt, and |
1301 | might require long branch stubs. */ | |
30667bf3 AM |
1302 | if (h == NULL) |
1303 | { | |
1304 | /* We know local syms won't need a .plt entry, and if | |
1305 | they need a long branch stub we can't guarantee that | |
1306 | we can reach the stub. So just flag an error later | |
1307 | if we're doing a shared link and find we need a long | |
1308 | branch stub. */ | |
1309 | continue; | |
1310 | } | |
1311 | else | |
1312 | { | |
1313 | /* Global symbols will need a .plt entry if they remain | |
1314 | global, and in most cases won't need a long branch | |
1315 | stub. Unfortunately, we have to cater for the case | |
1316 | where a symbol is forced local by versioning, or due | |
1317 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1318 | need_entry = NEED_PLT; |
4dc86686 | 1319 | if (h->elf.type == STT_PARISC_MILLI) |
98ceb8ce | 1320 | need_entry = 0; |
30667bf3 AM |
1321 | } |
1322 | break; | |
1323 | ||
1324 | case R_PARISC_SEGBASE: /* Used to set segment base. */ | |
c46b7515 | 1325 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1326 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1327 | case R_PARISC_PCREL14R: | |
1328 | case R_PARISC_PCREL17R: /* External branches. */ | |
1329 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
1330 | /* We don't need to propagate the relocation if linking a | |
1331 | shared object since these are section relative. */ | |
1332 | continue; | |
1333 | ||
1334 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1335 | case R_PARISC_DPREL14R: | |
1336 | case R_PARISC_DPREL21L: | |
1337 | if (info->shared) | |
1338 | { | |
1339 | (*_bfd_error_handler) | |
1340 | (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1341 | bfd_archive_filename (abfd), |
30667bf3 AM |
1342 | elf_hppa_howto_table[r_type].name); |
1343 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1344 | return FALSE; |
30667bf3 AM |
1345 | } |
1346 | /* Fall through. */ | |
1347 | ||
1348 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1349 | case R_PARISC_DIR17R: | |
47d89dba AM |
1350 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1351 | case R_PARISC_DIR14R: | |
30667bf3 | 1352 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
067fa4a6 | 1353 | #if 0 |
30667bf3 AM |
1354 | /* Help debug shared library creation. Any of the above |
1355 | relocs can be used in shared libs, but they may cause | |
1356 | pages to become unshared. */ | |
1357 | if (info->shared) | |
1358 | { | |
1359 | (*_bfd_error_handler) | |
1360 | (_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1361 | bfd_archive_filename (abfd), |
30667bf3 AM |
1362 | elf_hppa_howto_table[r_type].name); |
1363 | } | |
1364 | /* Fall through. */ | |
1365 | #endif | |
1366 | ||
c46b7515 | 1367 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1368 | /* We may want to output a dynamic relocation later. */ |
1369 | need_entry = NEED_DYNREL; | |
1370 | break; | |
1371 | ||
1372 | /* This relocation describes the C++ object vtable hierarchy. | |
1373 | Reconstruct it for later use during GC. */ | |
1374 | case R_PARISC_GNU_VTINHERIT: | |
1375 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, | |
1376 | &h->elf, rel->r_offset)) | |
b34976b6 | 1377 | return FALSE; |
30667bf3 AM |
1378 | continue; |
1379 | ||
1380 | /* This relocation describes which C++ vtable entries are actually | |
1381 | used. Record for later use during GC. */ | |
1382 | case R_PARISC_GNU_VTENTRY: | |
1383 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, | |
36605136 | 1384 | &h->elf, rel->r_addend)) |
b34976b6 | 1385 | return FALSE; |
30667bf3 AM |
1386 | continue; |
1387 | ||
1388 | default: | |
1389 | continue; | |
1390 | } | |
1391 | ||
1392 | /* Now carry out our orders. */ | |
1393 | if (need_entry & NEED_GOT) | |
1394 | { | |
1395 | /* Allocate space for a GOT entry, as well as a dynamic | |
25f72752 | 1396 | relocation for this entry. */ |
83c81bfe | 1397 | if (htab->sgot == NULL) |
30667bf3 | 1398 | { |
3ac8354b AM |
1399 | if (htab->elf.dynobj == NULL) |
1400 | htab->elf.dynobj = abfd; | |
1401 | if (!elf32_hppa_create_dynamic_sections (htab->elf.dynobj, info)) | |
b34976b6 | 1402 | return FALSE; |
30667bf3 AM |
1403 | } |
1404 | ||
1405 | if (h != NULL) | |
1406 | { | |
51b64d56 | 1407 | h->elf.got.refcount += 1; |
30667bf3 AM |
1408 | } |
1409 | else | |
1410 | { | |
3ac8354b AM |
1411 | bfd_signed_vma *local_got_refcounts; |
1412 | ||
30667bf3 | 1413 | /* This is a global offset table entry for a local symbol. */ |
3ac8354b | 1414 | local_got_refcounts = elf_local_got_refcounts (abfd); |
30667bf3 AM |
1415 | if (local_got_refcounts == NULL) |
1416 | { | |
dc810e39 | 1417 | bfd_size_type size; |
30667bf3 | 1418 | |
74d1c347 AM |
1419 | /* Allocate space for local got offsets and local |
1420 | plt offsets. Done this way to save polluting | |
1421 | elf_obj_tdata with another target specific | |
1422 | pointer. */ | |
dc810e39 AM |
1423 | size = symtab_hdr->sh_info; |
1424 | size *= 2 * sizeof (bfd_signed_vma); | |
30667bf3 | 1425 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1426 | bfd_zalloc (abfd, size)); |
30667bf3 | 1427 | if (local_got_refcounts == NULL) |
b34976b6 | 1428 | return FALSE; |
30667bf3 | 1429 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
30667bf3 | 1430 | } |
ebe50bae | 1431 | local_got_refcounts[r_symndx] += 1; |
30667bf3 AM |
1432 | } |
1433 | } | |
1434 | ||
1435 | if (need_entry & NEED_PLT) | |
1436 | { | |
1437 | /* If we are creating a shared library, and this is a reloc | |
1438 | against a weak symbol or a global symbol in a dynamic | |
1439 | object, then we will be creating an import stub and a | |
1440 | .plt entry for the symbol. Similarly, on a normal link | |
1441 | to symbols defined in a dynamic object we'll need the | |
1442 | import stub and a .plt entry. We don't know yet whether | |
1443 | the symbol is defined or not, so make an entry anyway and | |
1444 | clean up later in adjust_dynamic_symbol. */ | |
1445 | if ((sec->flags & SEC_ALLOC) != 0) | |
1446 | { | |
74d1c347 | 1447 | if (h != NULL) |
30667bf3 | 1448 | { |
51b64d56 AM |
1449 | h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
1450 | h->elf.plt.refcount += 1; | |
74d1c347 | 1451 | |
36605136 AM |
1452 | /* If this .plt entry is for a plabel, mark it so |
1453 | that adjust_dynamic_symbol will keep the entry | |
1454 | even if it appears to be local. */ | |
74d1c347 AM |
1455 | if (need_entry & PLT_PLABEL) |
1456 | h->plabel = 1; | |
1457 | } | |
1458 | else if (need_entry & PLT_PLABEL) | |
1459 | { | |
3ac8354b | 1460 | bfd_signed_vma *local_got_refcounts; |
68fb2e56 | 1461 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 | 1462 | |
3ac8354b | 1463 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1464 | if (local_got_refcounts == NULL) |
1465 | { | |
dc810e39 | 1466 | bfd_size_type size; |
74d1c347 AM |
1467 | |
1468 | /* Allocate space for local got offsets and local | |
1469 | plt offsets. */ | |
dc810e39 AM |
1470 | size = symtab_hdr->sh_info; |
1471 | size *= 2 * sizeof (bfd_signed_vma); | |
74d1c347 | 1472 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1473 | bfd_zalloc (abfd, size)); |
74d1c347 | 1474 | if (local_got_refcounts == NULL) |
b34976b6 | 1475 | return FALSE; |
74d1c347 | 1476 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
74d1c347 | 1477 | } |
68fb2e56 AM |
1478 | local_plt_refcounts = (local_got_refcounts |
1479 | + symtab_hdr->sh_info); | |
ebe50bae | 1480 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1481 | } |
30667bf3 AM |
1482 | } |
1483 | } | |
1484 | ||
98ceb8ce | 1485 | if (need_entry & NEED_DYNREL) |
30667bf3 AM |
1486 | { |
1487 | /* Flag this symbol as having a non-got, non-plt reference | |
1488 | so that we generate copy relocs if it turns out to be | |
1489 | dynamic. */ | |
ebe50bae | 1490 | if (h != NULL && !info->shared) |
30667bf3 AM |
1491 | h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; |
1492 | ||
1493 | /* If we are creating a shared library then we need to copy | |
1494 | the reloc into the shared library. However, if we are | |
1495 | linking with -Bsymbolic, we need only copy absolute | |
1496 | relocs or relocs against symbols that are not defined in | |
1497 | an object we are including in the link. PC- or DP- or | |
1498 | DLT-relative relocs against any local sym or global sym | |
1499 | with DEF_REGULAR set, can be discarded. At this point we | |
1500 | have not seen all the input files, so it is possible that | |
1501 | DEF_REGULAR is not set now but will be set later (it is | |
1502 | never cleared). We account for that possibility below by | |
98ceb8ce | 1503 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1504 | hash table entry. |
1505 | ||
1506 | A similar situation to the -Bsymbolic case occurs when | |
1507 | creating shared libraries and symbol visibility changes | |
1508 | render the symbol local. | |
1509 | ||
1510 | As it turns out, all the relocs we will be creating here | |
1511 | are absolute, so we cannot remove them on -Bsymbolic | |
1512 | links or visibility changes anyway. A STUB_REL reloc | |
1513 | is absolute too, as in that case it is the reloc in the | |
1514 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1515 | reloc in the branch. |
1516 | ||
1517 | If on the other hand, we are creating an executable, we | |
1518 | may need to keep relocations for symbols satisfied by a | |
1519 | dynamic library if we manage to avoid copy relocs for the | |
1520 | symbol. */ | |
446f2863 AM |
1521 | if ((info->shared |
1522 | && (sec->flags & SEC_ALLOC) != 0 | |
1523 | && (IS_ABSOLUTE_RELOC (r_type) | |
1524 | || (h != NULL | |
1525 | && (!info->symbolic | |
1526 | || h->elf.root.type == bfd_link_hash_defweak | |
1527 | || (h->elf.elf_link_hash_flags | |
1528 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1529 | || (!info->shared | |
1530 | && (sec->flags & SEC_ALLOC) != 0 | |
1531 | && h != NULL | |
446f2863 AM |
1532 | && (h->elf.root.type == bfd_link_hash_defweak |
1533 | || (h->elf.elf_link_hash_flags | |
1534 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
30667bf3 | 1535 | { |
ec338859 AM |
1536 | struct elf32_hppa_dyn_reloc_entry *p; |
1537 | struct elf32_hppa_dyn_reloc_entry **head; | |
1538 | ||
30667bf3 AM |
1539 | /* Create a reloc section in dynobj and make room for |
1540 | this reloc. */ | |
98ceb8ce | 1541 | if (sreloc == NULL) |
30667bf3 AM |
1542 | { |
1543 | char *name; | |
3ac8354b | 1544 | bfd *dynobj; |
30667bf3 | 1545 | |
98ceb8ce AM |
1546 | name = (bfd_elf_string_from_elf_section |
1547 | (abfd, | |
1548 | elf_elfheader (abfd)->e_shstrndx, | |
1549 | elf_section_data (sec)->rel_hdr.sh_name)); | |
30667bf3 AM |
1550 | if (name == NULL) |
1551 | { | |
1552 | (*_bfd_error_handler) | |
1553 | (_("Could not find relocation section for %s"), | |
1554 | sec->name); | |
1555 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1556 | return FALSE; |
30667bf3 AM |
1557 | } |
1558 | ||
3ac8354b AM |
1559 | if (htab->elf.dynobj == NULL) |
1560 | htab->elf.dynobj = abfd; | |
1561 | ||
1562 | dynobj = htab->elf.dynobj; | |
98ceb8ce AM |
1563 | sreloc = bfd_get_section_by_name (dynobj, name); |
1564 | if (sreloc == NULL) | |
30667bf3 AM |
1565 | { |
1566 | flagword flags; | |
1567 | ||
98ceb8ce | 1568 | sreloc = bfd_make_section (dynobj, name); |
30667bf3 AM |
1569 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1570 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1571 | if ((sec->flags & SEC_ALLOC) != 0) | |
1572 | flags |= SEC_ALLOC | SEC_LOAD; | |
98ceb8ce AM |
1573 | if (sreloc == NULL |
1574 | || !bfd_set_section_flags (dynobj, sreloc, flags) | |
1575 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) | |
b34976b6 | 1576 | return FALSE; |
30667bf3 | 1577 | } |
30667bf3 | 1578 | |
98ceb8ce | 1579 | elf_section_data (sec)->sreloc = sreloc; |
30667bf3 AM |
1580 | } |
1581 | ||
98ceb8ce AM |
1582 | /* If this is a global symbol, we count the number of |
1583 | relocations we need for this symbol. */ | |
1584 | if (h != NULL) | |
30667bf3 | 1585 | { |
ec338859 AM |
1586 | head = &h->dyn_relocs; |
1587 | } | |
1588 | else | |
1589 | { | |
1590 | /* Track dynamic relocs needed for local syms too. | |
1591 | We really need local syms available to do this | |
1592 | easily. Oh well. */ | |
1593 | ||
1594 | asection *s; | |
1595 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
1596 | sec, r_symndx); | |
1597 | if (s == NULL) | |
b34976b6 | 1598 | return FALSE; |
30667bf3 | 1599 | |
ec338859 AM |
1600 | head = ((struct elf32_hppa_dyn_reloc_entry **) |
1601 | &elf_section_data (s)->local_dynrel); | |
1602 | } | |
1603 | ||
1604 | p = *head; | |
1605 | if (p == NULL || p->sec != sec) | |
1606 | { | |
1607 | p = ((struct elf32_hppa_dyn_reloc_entry *) | |
1608 | bfd_alloc (htab->elf.dynobj, | |
1609 | (bfd_size_type) sizeof *p)); | |
1610 | if (p == NULL) | |
b34976b6 | 1611 | return FALSE; |
ec338859 AM |
1612 | p->next = *head; |
1613 | *head = p; | |
1614 | p->sec = sec; | |
1615 | p->count = 0; | |
98ceb8ce | 1616 | #if RELATIVE_DYNRELOCS |
ec338859 | 1617 | p->relative_count = 0; |
98ceb8ce | 1618 | #endif |
ec338859 | 1619 | } |
98ceb8ce | 1620 | |
ec338859 | 1621 | p->count += 1; |
98ceb8ce | 1622 | #if RELATIVE_DYNRELOCS |
ec338859 AM |
1623 | if (!IS_ABSOLUTE_RELOC (rtype)) |
1624 | p->relative_count += 1; | |
98ceb8ce | 1625 | #endif |
30667bf3 AM |
1626 | } |
1627 | } | |
1628 | } | |
edd21aca | 1629 | |
b34976b6 | 1630 | return TRUE; |
edd21aca AM |
1631 | } |
1632 | ||
30667bf3 AM |
1633 | /* Return the section that should be marked against garbage collection |
1634 | for a given relocation. */ | |
1635 | ||
1636 | static asection * | |
1e2f5b6e AM |
1637 | elf32_hppa_gc_mark_hook (sec, info, rel, h, sym) |
1638 | asection *sec; | |
30667bf3 AM |
1639 | struct bfd_link_info *info ATTRIBUTE_UNUSED; |
1640 | Elf_Internal_Rela *rel; | |
1641 | struct elf_link_hash_entry *h; | |
1642 | Elf_Internal_Sym *sym; | |
1643 | { | |
1644 | if (h != NULL) | |
1645 | { | |
1646 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1647 | { | |
1648 | case R_PARISC_GNU_VTINHERIT: | |
1649 | case R_PARISC_GNU_VTENTRY: | |
1650 | break; | |
1651 | ||
1652 | default: | |
1653 | switch (h->root.type) | |
1654 | { | |
1655 | case bfd_link_hash_defined: | |
1656 | case bfd_link_hash_defweak: | |
1657 | return h->root.u.def.section; | |
1658 | ||
1659 | case bfd_link_hash_common: | |
1660 | return h->root.u.c.p->section; | |
1661 | ||
1662 | default: | |
1663 | break; | |
1664 | } | |
1665 | } | |
1666 | } | |
1667 | else | |
1e2f5b6e | 1668 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
30667bf3 AM |
1669 | |
1670 | return NULL; | |
1671 | } | |
1672 | ||
30667bf3 AM |
1673 | /* Update the got and plt entry reference counts for the section being |
1674 | removed. */ | |
edd21aca | 1675 | |
b34976b6 | 1676 | static bfd_boolean |
30667bf3 AM |
1677 | elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs) |
1678 | bfd *abfd; | |
1679 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1680 | asection *sec; | |
1681 | const Elf_Internal_Rela *relocs; | |
edd21aca | 1682 | { |
30667bf3 AM |
1683 | Elf_Internal_Shdr *symtab_hdr; |
1684 | struct elf_link_hash_entry **sym_hashes; | |
1685 | bfd_signed_vma *local_got_refcounts; | |
74d1c347 | 1686 | bfd_signed_vma *local_plt_refcounts; |
30667bf3 AM |
1687 | const Elf_Internal_Rela *rel, *relend; |
1688 | unsigned long r_symndx; | |
1689 | struct elf_link_hash_entry *h; | |
83c81bfe | 1690 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 1691 | bfd *dynobj; |
30667bf3 | 1692 | |
ec338859 | 1693 | elf_section_data (sec)->local_dynrel = NULL; |
98ceb8ce | 1694 | |
30667bf3 AM |
1695 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1696 | sym_hashes = elf_sym_hashes (abfd); | |
1697 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
74d1c347 AM |
1698 | local_plt_refcounts = local_got_refcounts; |
1699 | if (local_plt_refcounts != NULL) | |
1700 | local_plt_refcounts += symtab_hdr->sh_info; | |
83c81bfe | 1701 | htab = hppa_link_hash_table (info); |
ebe50bae | 1702 | dynobj = htab->elf.dynobj; |
30667bf3 | 1703 | if (dynobj == NULL) |
b34976b6 | 1704 | return TRUE; |
30667bf3 | 1705 | |
30667bf3 AM |
1706 | relend = relocs + sec->reloc_count; |
1707 | for (rel = relocs; rel < relend; rel++) | |
1708 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1709 | { | |
1710 | case R_PARISC_DLTIND14F: | |
1711 | case R_PARISC_DLTIND14R: | |
1712 | case R_PARISC_DLTIND21L: | |
1713 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1714 | if (r_symndx >= symtab_hdr->sh_info) | |
1715 | { | |
1716 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1717 | if (h->got.refcount > 0) | |
4dc86686 | 1718 | h->got.refcount -= 1; |
30667bf3 AM |
1719 | } |
1720 | else if (local_got_refcounts != NULL) | |
1721 | { | |
1722 | if (local_got_refcounts[r_symndx] > 0) | |
4dc86686 | 1723 | local_got_refcounts[r_symndx] -= 1; |
30667bf3 AM |
1724 | } |
1725 | break; | |
edd21aca | 1726 | |
30667bf3 AM |
1727 | case R_PARISC_PCREL12F: |
1728 | case R_PARISC_PCREL17C: | |
1729 | case R_PARISC_PCREL17F: | |
1730 | case R_PARISC_PCREL22F: | |
1731 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1732 | if (r_symndx >= symtab_hdr->sh_info) | |
1733 | { | |
1734 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1735 | if (h->plt.refcount > 0) | |
1736 | h->plt.refcount -= 1; | |
1737 | } | |
1738 | break; | |
edd21aca | 1739 | |
74d1c347 AM |
1740 | case R_PARISC_PLABEL14R: |
1741 | case R_PARISC_PLABEL21L: | |
1742 | case R_PARISC_PLABEL32: | |
1743 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1744 | if (r_symndx >= symtab_hdr->sh_info) | |
1745 | { | |
98ceb8ce AM |
1746 | struct elf32_hppa_link_hash_entry *eh; |
1747 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1748 | struct elf32_hppa_dyn_reloc_entry *p; | |
1749 | ||
74d1c347 | 1750 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
98ceb8ce | 1751 | |
74d1c347 AM |
1752 | if (h->plt.refcount > 0) |
1753 | h->plt.refcount -= 1; | |
98ceb8ce AM |
1754 | |
1755 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1756 | ||
1757 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1758 | if (p->sec == sec) | |
1759 | { | |
1760 | #if RELATIVE_DYNRELOCS | |
1761 | if (!IS_ABSOLUTE_RELOC (rtype)) | |
1762 | p->relative_count -= 1; | |
1763 | #endif | |
1764 | p->count -= 1; | |
1765 | if (p->count == 0) | |
1766 | *pp = p->next; | |
1767 | break; | |
1768 | } | |
74d1c347 AM |
1769 | } |
1770 | else if (local_plt_refcounts != NULL) | |
1771 | { | |
1772 | if (local_plt_refcounts[r_symndx] > 0) | |
1773 | local_plt_refcounts[r_symndx] -= 1; | |
1774 | } | |
1775 | break; | |
1776 | ||
98ceb8ce AM |
1777 | case R_PARISC_DIR32: |
1778 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1779 | if (r_symndx >= symtab_hdr->sh_info) | |
1780 | { | |
1781 | struct elf32_hppa_link_hash_entry *eh; | |
1782 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1783 | struct elf32_hppa_dyn_reloc_entry *p; | |
1784 | ||
1785 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1786 | ||
1787 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1788 | ||
1789 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1790 | if (p->sec == sec) | |
1791 | { | |
1792 | #if RELATIVE_DYNRELOCS | |
1793 | if (!IS_ABSOLUTE_RELOC (R_PARISC_DIR32)) | |
1794 | p->relative_count -= 1; | |
1795 | #endif | |
1796 | p->count -= 1; | |
1797 | if (p->count == 0) | |
1798 | *pp = p->next; | |
1799 | break; | |
1800 | } | |
1801 | } | |
1802 | break; | |
1803 | ||
30667bf3 AM |
1804 | default: |
1805 | break; | |
1806 | } | |
252b5132 | 1807 | |
b34976b6 | 1808 | return TRUE; |
252b5132 RH |
1809 | } |
1810 | ||
74d1c347 AM |
1811 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1812 | plabels. */ | |
1813 | ||
1814 | static void | |
e5094212 AM |
1815 | elf32_hppa_hide_symbol (info, h, force_local) |
1816 | struct bfd_link_info *info; | |
74d1c347 | 1817 | struct elf_link_hash_entry *h; |
b34976b6 | 1818 | bfd_boolean force_local; |
74d1c347 | 1819 | { |
e5094212 AM |
1820 | if (force_local) |
1821 | { | |
1822 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL; | |
1823 | if (h->dynindx != -1) | |
1824 | { | |
1825 | h->dynindx = -1; | |
1826 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
1827 | h->dynstr_index); | |
1828 | } | |
1829 | } | |
1830 | ||
74d1c347 AM |
1831 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel) |
1832 | { | |
1833 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1834 | h->plt.offset = (bfd_vma) -1; | |
1835 | } | |
1836 | } | |
1837 | ||
4dc86686 AM |
1838 | /* This is the condition under which elf32_hppa_finish_dynamic_symbol |
1839 | will be called from elflink.h. If elflink.h doesn't call our | |
1840 | finish_dynamic_symbol routine, we'll need to do something about | |
1841 | initializing any .plt and .got entries in elf32_hppa_relocate_section. */ | |
1842 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
1843 | ((DYN) \ | |
1844 | && ((INFO)->shared \ | |
1845 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
1846 | && ((H)->dynindx != -1 \ | |
1847 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
1848 | ||
30667bf3 AM |
1849 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1850 | regular object. The current definition is in some section of the | |
1851 | dynamic object, but we're not including those sections. We have to | |
1852 | change the definition to something the rest of the link can | |
1853 | understand. */ | |
252b5132 | 1854 | |
b34976b6 | 1855 | static bfd_boolean |
30667bf3 AM |
1856 | elf32_hppa_adjust_dynamic_symbol (info, h) |
1857 | struct bfd_link_info *info; | |
1858 | struct elf_link_hash_entry *h; | |
252b5132 | 1859 | { |
83c81bfe | 1860 | struct elf32_hppa_link_hash_table *htab; |
ebe50bae AM |
1861 | struct elf32_hppa_link_hash_entry *eh; |
1862 | struct elf32_hppa_dyn_reloc_entry *p; | |
30667bf3 | 1863 | asection *s; |
3ac8354b | 1864 | unsigned int power_of_two; |
30667bf3 AM |
1865 | |
1866 | /* If this is a function, put it in the procedure linkage table. We | |
067fa4a6 | 1867 | will fill in the contents of the procedure linkage table later. */ |
30667bf3 AM |
1868 | if (h->type == STT_FUNC |
1869 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1870 | { | |
1871 | if (h->plt.refcount <= 0 | |
1872 | || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1873 | && h->root.type != bfd_link_hash_defweak | |
74d1c347 | 1874 | && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel |
30667bf3 AM |
1875 | && (!info->shared || info->symbolic))) |
1876 | { | |
1877 | /* The .plt entry is not needed when: | |
1878 | a) Garbage collection has removed all references to the | |
1879 | symbol, or | |
1880 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1881 | object, and it's not a weak definition, nor is the symbol |
1882 | used by a plabel relocation. Either this object is the | |
1883 | application or we are doing a shared symbolic link. */ | |
1884 | ||
1885 | /* As a special sop to the hppa ABI, we keep a .plt entry | |
1886 | for functions in sections containing PIC code. */ | |
067fa4a6 AM |
1887 | if (!info->shared |
1888 | && h->plt.refcount > 0 | |
1889 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1890 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0) | |
12cca0d2 | 1891 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
30667bf3 AM |
1892 | else |
1893 | { | |
1894 | h->plt.offset = (bfd_vma) -1; | |
1895 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
30667bf3 | 1896 | } |
30667bf3 | 1897 | } |
4dc86686 | 1898 | |
b34976b6 | 1899 | return TRUE; |
30667bf3 | 1900 | } |
bbd7ec4a AM |
1901 | else |
1902 | h->plt.offset = (bfd_vma) -1; | |
edd21aca | 1903 | |
30667bf3 AM |
1904 | /* If this is a weak symbol, and there is a real definition, the |
1905 | processor independent code will have arranged for us to see the | |
1906 | real definition first, and we can just use the same value. */ | |
1907 | if (h->weakdef != NULL) | |
edd21aca | 1908 | { |
49e9d0d3 AM |
1909 | if (h->weakdef->root.type != bfd_link_hash_defined |
1910 | && h->weakdef->root.type != bfd_link_hash_defweak) | |
1911 | abort (); | |
30667bf3 AM |
1912 | h->root.u.def.section = h->weakdef->root.u.def.section; |
1913 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
b34976b6 | 1914 | return TRUE; |
30667bf3 | 1915 | } |
edd21aca | 1916 | |
30667bf3 AM |
1917 | /* This is a reference to a symbol defined by a dynamic object which |
1918 | is not a function. */ | |
1919 | ||
1920 | /* If we are creating a shared library, we must presume that the | |
1921 | only references to the symbol are via the global offset table. | |
1922 | For such cases we need not do anything here; the relocations will | |
1923 | be handled correctly by relocate_section. */ | |
1924 | if (info->shared) | |
b34976b6 | 1925 | return TRUE; |
30667bf3 AM |
1926 | |
1927 | /* If there are no references to this symbol that do not use the | |
1928 | GOT, we don't need to generate a copy reloc. */ | |
1929 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
b34976b6 | 1930 | return TRUE; |
30667bf3 | 1931 | |
ebe50bae AM |
1932 | eh = (struct elf32_hppa_link_hash_entry *) h; |
1933 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1934 | { | |
1935 | s = p->sec->output_section; | |
1936 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1937 | break; | |
1938 | } | |
1939 | ||
1940 | /* If we didn't find any dynamic relocs in read-only sections, then | |
46fe4e66 | 1941 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
ebe50bae AM |
1942 | if (p == NULL) |
1943 | { | |
1944 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
b34976b6 | 1945 | return TRUE; |
ebe50bae AM |
1946 | } |
1947 | ||
30667bf3 AM |
1948 | /* We must allocate the symbol in our .dynbss section, which will |
1949 | become part of the .bss section of the executable. There will be | |
1950 | an entry for this symbol in the .dynsym section. The dynamic | |
1951 | object will contain position independent code, so all references | |
1952 | from the dynamic object to this symbol will go through the global | |
1953 | offset table. The dynamic linker will use the .dynsym entry to | |
1954 | determine the address it must put in the global offset table, so | |
1955 | both the dynamic object and the regular object will refer to the | |
1956 | same memory location for the variable. */ | |
1957 | ||
3ac8354b | 1958 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1959 | |
1960 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1961 | copy the initial value out of the dynamic object and into the | |
3ac8354b | 1962 | runtime process image. */ |
30667bf3 AM |
1963 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
1964 | { | |
3ac8354b | 1965 | htab->srelbss->_raw_size += sizeof (Elf32_External_Rela); |
30667bf3 | 1966 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
edd21aca | 1967 | } |
252b5132 | 1968 | |
3ac8354b AM |
1969 | /* We need to figure out the alignment required for this symbol. I |
1970 | have no idea how other ELF linkers handle this. */ | |
30667bf3 | 1971 | |
3ac8354b AM |
1972 | power_of_two = bfd_log2 (h->size); |
1973 | if (power_of_two > 3) | |
1974 | power_of_two = 3; | |
1975 | ||
1976 | /* Apply the required alignment. */ | |
1977 | s = htab->sdynbss; | |
1978 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1979 | (bfd_size_type) (1 << power_of_two)); | |
1980 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
1981 | { | |
1982 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) | |
b34976b6 | 1983 | return FALSE; |
3ac8354b | 1984 | } |
30667bf3 | 1985 | |
30667bf3 AM |
1986 | /* Define the symbol as being at this point in the section. */ |
1987 | h->root.u.def.section = s; | |
1988 | h->root.u.def.value = s->_raw_size; | |
edd21aca | 1989 | |
30667bf3 AM |
1990 | /* Increment the section size to make room for the symbol. */ |
1991 | s->_raw_size += h->size; | |
252b5132 | 1992 | |
b34976b6 | 1993 | return TRUE; |
252b5132 RH |
1994 | } |
1995 | ||
30667bf3 AM |
1996 | /* Called via elf_link_hash_traverse to create .plt entries for an |
1997 | application that uses statically linked PIC functions. Similar to | |
1998 | the first part of elf32_hppa_adjust_dynamic_symbol. */ | |
252b5132 | 1999 | |
b34976b6 | 2000 | static bfd_boolean |
a8d02d66 | 2001 | mark_PIC_calls (h, inf) |
30667bf3 | 2002 | struct elf_link_hash_entry *h; |
4dc86686 | 2003 | PTR inf ATTRIBUTE_UNUSED; |
252b5132 | 2004 | { |
e92d460e AM |
2005 | if (h->root.type == bfd_link_hash_warning) |
2006 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2007 | ||
30667bf3 AM |
2008 | if (! (h->plt.refcount > 0 |
2009 | && (h->root.type == bfd_link_hash_defined | |
2010 | || h->root.type == bfd_link_hash_defweak) | |
2011 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)) | |
252b5132 | 2012 | { |
30667bf3 AM |
2013 | h->plt.offset = (bfd_vma) -1; |
2014 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
b34976b6 | 2015 | return TRUE; |
252b5132 RH |
2016 | } |
2017 | ||
74d1c347 | 2018 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
30667bf3 | 2019 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
edd21aca | 2020 | |
b34976b6 | 2021 | return TRUE; |
4dc86686 AM |
2022 | } |
2023 | ||
e5ee5df1 AM |
2024 | /* Allocate space in the .plt for entries that won't have relocations. |
2025 | ie. pic_call and plabel entries. */ | |
a8d02d66 | 2026 | |
b34976b6 | 2027 | static bfd_boolean |
e5ee5df1 | 2028 | allocate_plt_static (h, inf) |
a8d02d66 AM |
2029 | struct elf_link_hash_entry *h; |
2030 | PTR inf; | |
2031 | { | |
2032 | struct bfd_link_info *info; | |
2033 | struct elf32_hppa_link_hash_table *htab; | |
2034 | asection *s; | |
2035 | ||
e92d460e | 2036 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 2037 | return TRUE; |
a8d02d66 | 2038 | |
e92d460e AM |
2039 | if (h->root.type == bfd_link_hash_warning) |
2040 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2041 | ||
a8d02d66 AM |
2042 | info = (struct bfd_link_info *) inf; |
2043 | htab = hppa_link_hash_table (info); | |
2044 | if (((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2045 | { | |
e5ee5df1 AM |
2046 | /* Make an entry in the .plt section for non-pic code that is |
2047 | calling pic code. */ | |
067fa4a6 | 2048 | ((struct elf32_hppa_link_hash_entry *) h)->plabel = 0; |
a8d02d66 AM |
2049 | s = htab->splt; |
2050 | h->plt.offset = s->_raw_size; | |
e5ee5df1 AM |
2051 | s->_raw_size += PLT_ENTRY_SIZE; |
2052 | } | |
2053 | else if (htab->elf.dynamic_sections_created | |
2054 | && h->plt.refcount > 0) | |
2055 | { | |
2056 | /* Make sure this symbol is output as a dynamic symbol. | |
2057 | Undefined weak syms won't yet be marked as dynamic. */ | |
2058 | if (h->dynindx == -1 | |
2059 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2060 | && h->type != STT_PARISC_MILLI) | |
a8d02d66 | 2061 | { |
e5ee5df1 | 2062 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) |
b34976b6 | 2063 | return FALSE; |
e5ee5df1 AM |
2064 | } |
2065 | ||
2066 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
2067 | { | |
067fa4a6 AM |
2068 | /* Allocate these later. From this point on, h->plabel |
2069 | means that the plt entry is only used by a plabel. | |
2070 | We'll be using a normal plt entry for this symbol, so | |
2071 | clear the plabel indicator. */ | |
2072 | ((struct elf32_hppa_link_hash_entry *) h)->plabel = 0; | |
e5ee5df1 AM |
2073 | } |
2074 | else if (((struct elf32_hppa_link_hash_entry *) h)->plabel) | |
2075 | { | |
2076 | /* Make an entry in the .plt section for plabel references | |
2077 | that won't have a .plt entry for other reasons. */ | |
2078 | s = htab->splt; | |
2079 | h->plt.offset = s->_raw_size; | |
2080 | s->_raw_size += PLT_ENTRY_SIZE; | |
a8d02d66 AM |
2081 | } |
2082 | else | |
e5ee5df1 AM |
2083 | { |
2084 | /* No .plt entry needed. */ | |
2085 | h->plt.offset = (bfd_vma) -1; | |
2086 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2087 | } | |
2088 | } | |
2089 | else | |
2090 | { | |
2091 | h->plt.offset = (bfd_vma) -1; | |
2092 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
a8d02d66 AM |
2093 | } |
2094 | ||
b34976b6 | 2095 | return TRUE; |
a8d02d66 AM |
2096 | } |
2097 | ||
4dc86686 AM |
2098 | /* Allocate space in .plt, .got and associated reloc sections for |
2099 | global syms. */ | |
2100 | ||
b34976b6 | 2101 | static bfd_boolean |
98ceb8ce | 2102 | allocate_dynrelocs (h, inf) |
4dc86686 AM |
2103 | struct elf_link_hash_entry *h; |
2104 | PTR inf; | |
2105 | { | |
2106 | struct bfd_link_info *info; | |
83c81bfe | 2107 | struct elf32_hppa_link_hash_table *htab; |
4dc86686 | 2108 | asection *s; |
446f2863 | 2109 | struct elf32_hppa_link_hash_entry *eh; |
98ceb8ce | 2110 | struct elf32_hppa_dyn_reloc_entry *p; |
4dc86686 | 2111 | |
e92d460e | 2112 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 2113 | return TRUE; |
73a74a62 | 2114 | |
e92d460e AM |
2115 | if (h->root.type == bfd_link_hash_warning) |
2116 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2117 | ||
30667bf3 | 2118 | info = (struct bfd_link_info *) inf; |
83c81bfe | 2119 | htab = hppa_link_hash_table (info); |
e5ee5df1 AM |
2120 | if (htab->elf.dynamic_sections_created |
2121 | && h->plt.offset != (bfd_vma) -1 | |
2122 | && !((struct elf32_hppa_link_hash_entry *) h)->pic_call | |
067fa4a6 | 2123 | && !((struct elf32_hppa_link_hash_entry *) h)->plabel) |
4dc86686 | 2124 | { |
e5ee5df1 AM |
2125 | /* Make an entry in the .plt section. */ |
2126 | s = htab->splt; | |
2127 | h->plt.offset = s->_raw_size; | |
2128 | s->_raw_size += PLT_ENTRY_SIZE; | |
3ac8354b | 2129 | |
e5ee5df1 AM |
2130 | /* We also need to make an entry in the .rela.plt section. */ |
2131 | htab->srelplt->_raw_size += sizeof (Elf32_External_Rela); | |
2132 | htab->need_plt_stub = 1; | |
4dc86686 | 2133 | } |
edd21aca | 2134 | |
4dc86686 AM |
2135 | if (h->got.refcount > 0) |
2136 | { | |
446f2863 AM |
2137 | /* Make sure this symbol is output as a dynamic symbol. |
2138 | Undefined weak syms won't yet be marked as dynamic. */ | |
2139 | if (h->dynindx == -1 | |
2140 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2141 | && h->type != STT_PARISC_MILLI) | |
2142 | { | |
2143 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
b34976b6 | 2144 | return FALSE; |
446f2863 AM |
2145 | } |
2146 | ||
83c81bfe | 2147 | s = htab->sgot; |
4dc86686 AM |
2148 | h->got.offset = s->_raw_size; |
2149 | s->_raw_size += GOT_ENTRY_SIZE; | |
ce757d15 AM |
2150 | if (htab->elf.dynamic_sections_created |
2151 | && (info->shared | |
2152 | || (h->dynindx != -1 | |
2153 | && h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)) | |
2154 | { | |
2155 | htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
2156 | } | |
4dc86686 AM |
2157 | } |
2158 | else | |
2159 | h->got.offset = (bfd_vma) -1; | |
30667bf3 | 2160 | |
446f2863 | 2161 | eh = (struct elf32_hppa_link_hash_entry *) h; |
98ceb8ce | 2162 | if (eh->dyn_relocs == NULL) |
b34976b6 | 2163 | return TRUE; |
30667bf3 | 2164 | |
98ceb8ce AM |
2165 | /* If this is a -Bsymbolic shared link, then we need to discard all |
2166 | space allocated for dynamic pc-relative relocs against symbols | |
2167 | defined in a regular object. For the normal shared case, discard | |
2168 | space for relocs that have become local due to symbol visibility | |
2169 | changes. */ | |
2170 | if (info->shared) | |
446f2863 | 2171 | { |
98ceb8ce AM |
2172 | #if RELATIVE_DYNRELOCS |
2173 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
2174 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
2175 | || info->symbolic)) | |
446f2863 | 2176 | { |
98ceb8ce | 2177 | struct elf32_hppa_dyn_reloc_entry **pp; |
30667bf3 | 2178 | |
98ceb8ce AM |
2179 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
2180 | { | |
2181 | p->count -= p->relative_count; | |
2182 | p->relative_count = 0; | |
2183 | if (p->count == 0) | |
2184 | *pp = p->next; | |
2185 | else | |
2186 | pp = &p->next; | |
2187 | } | |
2188 | } | |
2189 | #endif | |
446f2863 | 2190 | } |
98ceb8ce | 2191 | else |
30667bf3 | 2192 | { |
98ceb8ce AM |
2193 | /* For the non-shared case, discard space for relocs against |
2194 | symbols which turn out to need copy relocs or are not | |
2195 | dynamic. */ | |
2196 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
2197 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2198 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
ebe50bae | 2199 | || (htab->elf.dynamic_sections_created |
98ceb8ce AM |
2200 | && (h->root.type == bfd_link_hash_undefweak |
2201 | || h->root.type == bfd_link_hash_undefined)))) | |
2202 | { | |
2203 | /* Make sure this symbol is output as a dynamic symbol. | |
2204 | Undefined weak syms won't yet be marked as dynamic. */ | |
2205 | if (h->dynindx == -1 | |
2206 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2207 | && h->type != STT_PARISC_MILLI) | |
2208 | { | |
2209 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
b34976b6 | 2210 | return FALSE; |
98ceb8ce AM |
2211 | } |
2212 | ||
2213 | /* If that succeeded, we know we'll be keeping all the | |
2214 | relocs. */ | |
2215 | if (h->dynindx != -1) | |
2216 | goto keep; | |
2217 | } | |
446f2863 | 2218 | |
98ceb8ce | 2219 | eh->dyn_relocs = NULL; |
b34976b6 | 2220 | return TRUE; |
98ceb8ce | 2221 | |
ec338859 | 2222 | keep: ; |
30667bf3 | 2223 | } |
30667bf3 | 2224 | |
98ceb8ce AM |
2225 | /* Finally, allocate space. */ |
2226 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
30667bf3 | 2227 | { |
98ceb8ce AM |
2228 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
2229 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2230 | } |
30667bf3 | 2231 | |
b34976b6 | 2232 | return TRUE; |
30667bf3 | 2233 | } |
30667bf3 | 2234 | |
d5c73c2f AM |
2235 | /* This function is called via elf_link_hash_traverse to force |
2236 | millicode symbols local so they do not end up as globals in the | |
2237 | dynamic symbol table. We ought to be able to do this in | |
2238 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2239 | for all dynamic symbols. Arguably, this is a bug in | |
2240 | elf_adjust_dynamic_symbol. */ | |
2241 | ||
b34976b6 | 2242 | static bfd_boolean |
d5c73c2f AM |
2243 | clobber_millicode_symbols (h, info) |
2244 | struct elf_link_hash_entry *h; | |
2245 | struct bfd_link_info *info; | |
2246 | { | |
e92d460e AM |
2247 | if (h->root.type == bfd_link_hash_warning) |
2248 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2249 | ||
142f8c94 AM |
2250 | if (h->type == STT_PARISC_MILLI |
2251 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
e0522e89 | 2252 | { |
b34976b6 | 2253 | elf32_hppa_hide_symbol (info, h, TRUE); |
e0522e89 | 2254 | } |
b34976b6 | 2255 | return TRUE; |
d5c73c2f AM |
2256 | } |
2257 | ||
98ceb8ce AM |
2258 | /* Find any dynamic relocs that apply to read-only sections. */ |
2259 | ||
b34976b6 | 2260 | static bfd_boolean |
98ceb8ce AM |
2261 | readonly_dynrelocs (h, inf) |
2262 | struct elf_link_hash_entry *h; | |
2263 | PTR inf; | |
2264 | { | |
2265 | struct elf32_hppa_link_hash_entry *eh; | |
2266 | struct elf32_hppa_dyn_reloc_entry *p; | |
2267 | ||
e92d460e AM |
2268 | if (h->root.type == bfd_link_hash_warning) |
2269 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2270 | ||
98ceb8ce AM |
2271 | eh = (struct elf32_hppa_link_hash_entry *) h; |
2272 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2273 | { | |
2274 | asection *s = p->sec->output_section; | |
2275 | ||
2276 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2277 | { | |
2278 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2279 | ||
2280 | info->flags |= DF_TEXTREL; | |
2281 | ||
2282 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 2283 | return FALSE; |
98ceb8ce AM |
2284 | } |
2285 | } | |
b34976b6 | 2286 | return TRUE; |
98ceb8ce AM |
2287 | } |
2288 | ||
30667bf3 AM |
2289 | /* Set the sizes of the dynamic sections. */ |
2290 | ||
b34976b6 | 2291 | static bfd_boolean |
30667bf3 | 2292 | elf32_hppa_size_dynamic_sections (output_bfd, info) |
98ceb8ce | 2293 | bfd *output_bfd ATTRIBUTE_UNUSED; |
30667bf3 AM |
2294 | struct bfd_link_info *info; |
2295 | { | |
83c81bfe | 2296 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2297 | bfd *dynobj; |
98ceb8ce | 2298 | bfd *ibfd; |
30667bf3 | 2299 | asection *s; |
b34976b6 | 2300 | bfd_boolean relocs; |
30667bf3 | 2301 | |
83c81bfe | 2302 | htab = hppa_link_hash_table (info); |
ebe50bae | 2303 | dynobj = htab->elf.dynobj; |
49e9d0d3 AM |
2304 | if (dynobj == NULL) |
2305 | abort (); | |
30667bf3 | 2306 | |
ebe50bae | 2307 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2308 | { |
2309 | /* Set the contents of the .interp section to the interpreter. */ | |
2310 | if (! info->shared) | |
2311 | { | |
2312 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
49e9d0d3 AM |
2313 | if (s == NULL) |
2314 | abort (); | |
30667bf3 AM |
2315 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; |
2316 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2317 | } | |
74d1c347 | 2318 | |
d5c73c2f | 2319 | /* Force millicode symbols local. */ |
ebe50bae | 2320 | elf_link_hash_traverse (&htab->elf, |
d5c73c2f AM |
2321 | clobber_millicode_symbols, |
2322 | info); | |
68fb2e56 AM |
2323 | } |
2324 | else | |
2325 | { | |
2326 | /* Run through the function symbols, looking for any that are | |
a8d02d66 AM |
2327 | PIC, and mark them as needing .plt entries so that %r19 will |
2328 | be set up. */ | |
68fb2e56 | 2329 | if (! info->shared) |
a8d02d66 | 2330 | elf_link_hash_traverse (&htab->elf, mark_PIC_calls, (PTR) info); |
68fb2e56 | 2331 | } |
d5c73c2f | 2332 | |
98ceb8ce AM |
2333 | /* Set up .got and .plt offsets for local syms, and space for local |
2334 | dynamic relocs. */ | |
2335 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
68fb2e56 AM |
2336 | { |
2337 | bfd_signed_vma *local_got; | |
2338 | bfd_signed_vma *end_local_got; | |
2339 | bfd_signed_vma *local_plt; | |
2340 | bfd_signed_vma *end_local_plt; | |
2341 | bfd_size_type locsymcount; | |
2342 | Elf_Internal_Shdr *symtab_hdr; | |
2343 | asection *srel; | |
74d1c347 | 2344 | |
98ceb8ce | 2345 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2346 | continue; |
4dc86686 | 2347 | |
98ceb8ce AM |
2348 | for (s = ibfd->sections; s != NULL; s = s->next) |
2349 | { | |
ec338859 | 2350 | struct elf32_hppa_dyn_reloc_entry *p; |
98ceb8ce | 2351 | |
ec338859 AM |
2352 | for (p = ((struct elf32_hppa_dyn_reloc_entry *) |
2353 | elf_section_data (s)->local_dynrel); | |
2354 | p != NULL; | |
2355 | p = p->next) | |
98ceb8ce | 2356 | { |
ec338859 AM |
2357 | if (!bfd_is_abs_section (p->sec) |
2358 | && bfd_is_abs_section (p->sec->output_section)) | |
2359 | { | |
2360 | /* Input section has been discarded, either because | |
2361 | it is a copy of a linkonce section or due to | |
2362 | linker script /DISCARD/, so we'll be discarding | |
2363 | the relocs too. */ | |
2364 | } | |
248866a8 | 2365 | else if (p->count != 0) |
ec338859 AM |
2366 | { |
2367 | srel = elf_section_data (p->sec)->sreloc; | |
2368 | srel->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
248866a8 AM |
2369 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
2370 | info->flags |= DF_TEXTREL; | |
ec338859 | 2371 | } |
98ceb8ce AM |
2372 | } |
2373 | } | |
2374 | ||
2375 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2376 | if (!local_got) |
2377 | continue; | |
74d1c347 | 2378 | |
98ceb8ce | 2379 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2380 | locsymcount = symtab_hdr->sh_info; |
2381 | end_local_got = local_got + locsymcount; | |
83c81bfe AM |
2382 | s = htab->sgot; |
2383 | srel = htab->srelgot; | |
68fb2e56 AM |
2384 | for (; local_got < end_local_got; ++local_got) |
2385 | { | |
2386 | if (*local_got > 0) | |
4dc86686 | 2387 | { |
68fb2e56 AM |
2388 | *local_got = s->_raw_size; |
2389 | s->_raw_size += GOT_ENTRY_SIZE; | |
2390 | if (info->shared) | |
2391 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
4dc86686 | 2392 | } |
68fb2e56 AM |
2393 | else |
2394 | *local_got = (bfd_vma) -1; | |
2395 | } | |
74d1c347 | 2396 | |
68fb2e56 AM |
2397 | local_plt = end_local_got; |
2398 | end_local_plt = local_plt + locsymcount; | |
ebe50bae | 2399 | if (! htab->elf.dynamic_sections_created) |
68fb2e56 AM |
2400 | { |
2401 | /* Won't be used, but be safe. */ | |
2402 | for (; local_plt < end_local_plt; ++local_plt) | |
2403 | *local_plt = (bfd_vma) -1; | |
2404 | } | |
2405 | else | |
2406 | { | |
83c81bfe AM |
2407 | s = htab->splt; |
2408 | srel = htab->srelplt; | |
74d1c347 AM |
2409 | for (; local_plt < end_local_plt; ++local_plt) |
2410 | { | |
2411 | if (*local_plt > 0) | |
2412 | { | |
74d1c347 AM |
2413 | *local_plt = s->_raw_size; |
2414 | s->_raw_size += PLT_ENTRY_SIZE; | |
2415 | if (info->shared) | |
4dc86686 | 2416 | srel->_raw_size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2417 | } |
2418 | else | |
2419 | *local_plt = (bfd_vma) -1; | |
2420 | } | |
2421 | } | |
30667bf3 | 2422 | } |
30667bf3 | 2423 | |
e5ee5df1 AM |
2424 | /* Do all the .plt entries without relocs first. The dynamic linker |
2425 | uses the last .plt reloc to find the end of the .plt (and hence | |
2426 | the start of the .got) for lazy linking. */ | |
2427 | elf_link_hash_traverse (&htab->elf, allocate_plt_static, (PTR) info); | |
a8d02d66 | 2428 | |
98ceb8ce AM |
2429 | /* Allocate global sym .plt and .got entries, and space for global |
2430 | sym dynamic relocs. */ | |
ebe50bae | 2431 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); |
30667bf3 AM |
2432 | |
2433 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2434 | determined the sizes of the various dynamic sections. Allocate | |
2435 | memory for them. */ | |
b34976b6 | 2436 | relocs = FALSE; |
30667bf3 AM |
2437 | for (s = dynobj->sections; s != NULL; s = s->next) |
2438 | { | |
30667bf3 AM |
2439 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2440 | continue; | |
2441 | ||
83c81bfe | 2442 | if (s == htab->splt) |
68fb2e56 | 2443 | { |
83c81bfe | 2444 | if (htab->need_plt_stub) |
68fb2e56 AM |
2445 | { |
2446 | /* Make space for the plt stub at the end of the .plt | |
2447 | section. We want this stub right at the end, up | |
2448 | against the .got section. */ | |
83c81bfe | 2449 | int gotalign = bfd_section_alignment (dynobj, htab->sgot); |
68fb2e56 AM |
2450 | int pltalign = bfd_section_alignment (dynobj, s); |
2451 | bfd_size_type mask; | |
30667bf3 | 2452 | |
68fb2e56 AM |
2453 | if (gotalign > pltalign) |
2454 | bfd_set_section_alignment (dynobj, s, gotalign); | |
2455 | mask = ((bfd_size_type) 1 << gotalign) - 1; | |
2456 | s->_raw_size = (s->_raw_size + sizeof (plt_stub) + mask) & ~mask; | |
2457 | } | |
2458 | } | |
83c81bfe | 2459 | else if (s == htab->sgot) |
68fb2e56 AM |
2460 | ; |
2461 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) | |
30667bf3 AM |
2462 | { |
2463 | if (s->_raw_size != 0) | |
2464 | { | |
4e12ff7f AM |
2465 | /* Remember whether there are any reloc sections other |
2466 | than .rela.plt. */ | |
2467 | if (s != htab->srelplt) | |
b34976b6 | 2468 | relocs = TRUE; |
47d89dba | 2469 | |
30667bf3 AM |
2470 | /* We use the reloc_count field as a counter if we need |
2471 | to copy relocs into the output file. */ | |
2472 | s->reloc_count = 0; | |
2473 | } | |
2474 | } | |
30667bf3 AM |
2475 | else |
2476 | { | |
2477 | /* It's not one of our sections, so don't allocate space. */ | |
2478 | continue; | |
2479 | } | |
2480 | ||
2481 | if (s->_raw_size == 0) | |
2482 | { | |
2483 | /* If we don't need this section, strip it from the | |
2484 | output file. This is mostly to handle .rela.bss and | |
2485 | .rela.plt. We must create both sections in | |
2486 | create_dynamic_sections, because they must be created | |
2487 | before the linker maps input sections to output | |
2488 | sections. The linker does that before | |
2489 | adjust_dynamic_symbol is called, and it is that | |
2490 | function which decides whether anything needs to go | |
2491 | into these sections. */ | |
2492 | _bfd_strip_section_from_output (info, s); | |
2493 | continue; | |
2494 | } | |
2495 | ||
2496 | /* Allocate memory for the section contents. Zero it, because | |
2497 | we may not fill in all the reloc sections. */ | |
2498 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); | |
2499 | if (s->contents == NULL && s->_raw_size != 0) | |
b34976b6 | 2500 | return FALSE; |
30667bf3 AM |
2501 | } |
2502 | ||
ebe50bae | 2503 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2504 | { |
2505 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2506 | actually has nothing to do with the PLT, it is how we | |
2507 | communicate the LTP value of a load module to the dynamic | |
2508 | linker. */ | |
dc810e39 AM |
2509 | #define add_dynamic_entry(TAG, VAL) \ |
2510 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
2511 | ||
2512 | if (!add_dynamic_entry (DT_PLTGOT, 0)) | |
b34976b6 | 2513 | return FALSE; |
30667bf3 AM |
2514 | |
2515 | /* Add some entries to the .dynamic section. We fill in the | |
2516 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2517 | must add the entries now so that we get the correct size for | |
2518 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2519 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2520 | if (!info->shared) |
30667bf3 | 2521 | { |
dc810e39 | 2522 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 2523 | return FALSE; |
30667bf3 AM |
2524 | } |
2525 | ||
83c81bfe | 2526 | if (htab->srelplt->_raw_size != 0) |
30667bf3 | 2527 | { |
dc810e39 AM |
2528 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
2529 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2530 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 2531 | return FALSE; |
30667bf3 AM |
2532 | } |
2533 | ||
2534 | if (relocs) | |
2535 | { | |
dc810e39 AM |
2536 | if (!add_dynamic_entry (DT_RELA, 0) |
2537 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2538 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 2539 | return FALSE; |
30667bf3 | 2540 | |
98ceb8ce AM |
2541 | /* If any dynamic relocs apply to a read-only section, |
2542 | then we need a DT_TEXTREL entry. */ | |
248866a8 AM |
2543 | if ((info->flags & DF_TEXTREL) == 0) |
2544 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
2545 | (PTR) info); | |
98ceb8ce AM |
2546 | |
2547 | if ((info->flags & DF_TEXTREL) != 0) | |
2548 | { | |
2549 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 2550 | return FALSE; |
98ceb8ce | 2551 | } |
30667bf3 AM |
2552 | } |
2553 | } | |
dc810e39 | 2554 | #undef add_dynamic_entry |
30667bf3 | 2555 | |
b34976b6 | 2556 | return TRUE; |
30667bf3 AM |
2557 | } |
2558 | ||
30667bf3 AM |
2559 | /* External entry points for sizing and building linker stubs. */ |
2560 | ||
b4655ea9 AM |
2561 | /* Set up various things so that we can make a list of input sections |
2562 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 2563 | 0 when no stubs will be needed, and 1 on success. */ |
30667bf3 | 2564 | |
b4655ea9 AM |
2565 | int |
2566 | elf32_hppa_setup_section_lists (output_bfd, info) | |
25f72752 | 2567 | bfd *output_bfd; |
30667bf3 | 2568 | struct bfd_link_info *info; |
30667bf3 AM |
2569 | { |
2570 | bfd *input_bfd; | |
b4655ea9 AM |
2571 | unsigned int bfd_count; |
2572 | int top_id, top_index; | |
30667bf3 | 2573 | asection *section; |
25f72752 | 2574 | asection **input_list, **list; |
dc810e39 | 2575 | bfd_size_type amt; |
b4655ea9 | 2576 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
30667bf3 | 2577 | |
b4655ea9 AM |
2578 | if (htab->elf.root.creator->flavour != bfd_target_elf_flavour) |
2579 | return 0; | |
30667bf3 | 2580 | |
1badb539 AM |
2581 | /* Count the number of input BFDs and find the top input section id. */ |
2582 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2583 | input_bfd != NULL; |
2584 | input_bfd = input_bfd->link_next) | |
2585 | { | |
2586 | bfd_count += 1; | |
25f72752 AM |
2587 | for (section = input_bfd->sections; |
2588 | section != NULL; | |
2589 | section = section->next) | |
2590 | { | |
2591 | if (top_id < section->id) | |
2592 | top_id = section->id; | |
2593 | } | |
30667bf3 | 2594 | } |
b4655ea9 | 2595 | htab->bfd_count = bfd_count; |
30667bf3 | 2596 | |
dc810e39 | 2597 | amt = sizeof (struct map_stub) * (top_id + 1); |
83c81bfe AM |
2598 | htab->stub_group = (struct map_stub *) bfd_zmalloc (amt); |
2599 | if (htab->stub_group == NULL) | |
b4655ea9 | 2600 | return -1; |
1badb539 | 2601 | |
b4655ea9 | 2602 | /* We can't use output_bfd->section_count here to find the top output |
1badb539 AM |
2603 | section index as some sections may have been removed, and |
2604 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
2605 | for (section = output_bfd->sections, top_index = 0; | |
2606 | section != NULL; | |
2607 | section = section->next) | |
2608 | { | |
2609 | if (top_index < section->index) | |
2610 | top_index = section->index; | |
2611 | } | |
2612 | ||
b4655ea9 | 2613 | htab->top_index = top_index; |
dc810e39 AM |
2614 | amt = sizeof (asection *) * (top_index + 1); |
2615 | input_list = (asection **) bfd_malloc (amt); | |
b4655ea9 | 2616 | htab->input_list = input_list; |
25f72752 | 2617 | if (input_list == NULL) |
b4655ea9 | 2618 | return -1; |
25f72752 | 2619 | |
1badb539 AM |
2620 | /* For sections we aren't interested in, mark their entries with a |
2621 | value we can check later. */ | |
2622 | list = input_list + top_index; | |
2623 | do | |
2624 | *list = bfd_abs_section_ptr; | |
2625 | while (list-- != input_list); | |
2626 | ||
2627 | for (section = output_bfd->sections; | |
2628 | section != NULL; | |
2629 | section = section->next) | |
2630 | { | |
47d89dba | 2631 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2632 | input_list[section->index] = NULL; |
2633 | } | |
2634 | ||
b4655ea9 AM |
2635 | return 1; |
2636 | } | |
2637 | ||
2638 | /* The linker repeatedly calls this function for each input section, | |
2639 | in the order that input sections are linked into output sections. | |
2640 | Build lists of input sections to determine groupings between which | |
2641 | we may insert linker stubs. */ | |
2642 | ||
2643 | void | |
2644 | elf32_hppa_next_input_section (info, isec) | |
2645 | struct bfd_link_info *info; | |
2646 | asection *isec; | |
2647 | { | |
2648 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
2649 | ||
2650 | if (isec->output_section->index <= htab->top_index) | |
25f72752 | 2651 | { |
b4655ea9 AM |
2652 | asection **list = htab->input_list + isec->output_section->index; |
2653 | if (*list != bfd_abs_section_ptr) | |
25f72752 | 2654 | { |
b4655ea9 | 2655 | /* Steal the link_sec pointer for our list. */ |
83c81bfe | 2656 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
b4655ea9 AM |
2657 | /* This happens to make the list in reverse order, |
2658 | which is what we want. */ | |
2659 | PREV_SEC (isec) = *list; | |
2660 | *list = isec; | |
25f72752 AM |
2661 | } |
2662 | } | |
b4655ea9 | 2663 | } |
25f72752 | 2664 | |
b4655ea9 AM |
2665 | /* See whether we can group stub sections together. Grouping stub |
2666 | sections may result in fewer stubs. More importantly, we need to | |
2667 | put all .init* and .fini* stubs at the beginning of the .init or | |
2668 | .fini output sections respectively, because glibc splits the | |
2669 | _init and _fini functions into multiple parts. Putting a stub in | |
2670 | the middle of a function is not a good idea. */ | |
2671 | ||
2672 | static void | |
2673 | group_sections (htab, stub_group_size, stubs_always_before_branch) | |
2674 | struct elf32_hppa_link_hash_table *htab; | |
2675 | bfd_size_type stub_group_size; | |
b34976b6 | 2676 | bfd_boolean stubs_always_before_branch; |
b4655ea9 AM |
2677 | { |
2678 | asection **list = htab->input_list + htab->top_index; | |
1badb539 | 2679 | do |
25f72752 AM |
2680 | { |
2681 | asection *tail = *list; | |
1badb539 AM |
2682 | if (tail == bfd_abs_section_ptr) |
2683 | continue; | |
25f72752 AM |
2684 | while (tail != NULL) |
2685 | { | |
2686 | asection *curr; | |
2687 | asection *prev; | |
2688 | bfd_size_type total; | |
2689 | ||
2690 | curr = tail; | |
2691 | if (tail->_cooked_size) | |
2692 | total = tail->_cooked_size; | |
2693 | else | |
2694 | total = tail->_raw_size; | |
2695 | while ((prev = PREV_SEC (curr)) != NULL | |
2696 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2697 | < stub_group_size)) |
25f72752 AM |
2698 | curr = prev; |
2699 | ||
2700 | /* OK, the size from the start of CURR to the end is less | |
a248e267 | 2701 | than 240000 bytes and thus can be handled by one stub |
25f72752 | 2702 | section. (or the tail section is itself larger than |
a248e267 | 2703 | 240000 bytes, in which case we may be toast.) |
25f72752 AM |
2704 | We should really be keeping track of the total size of |
2705 | stubs added here, as stubs contribute to the final output | |
2706 | section size. That's a little tricky, and this way will | |
a248e267 AM |
2707 | only break if stubs added total more than 22144 bytes, or |
2708 | 2768 long branch stubs. It seems unlikely for more than | |
2709 | 2768 different functions to be called, especially from | |
2710 | code only 240000 bytes long. This limit used to be | |
2711 | 250000, but c++ code tends to generate lots of little | |
2712 | functions, and sometimes violated the assumption. */ | |
25f72752 AM |
2713 | do |
2714 | { | |
2715 | prev = PREV_SEC (tail); | |
2716 | /* Set up this stub group. */ | |
83c81bfe | 2717 | htab->stub_group[tail->id].link_sec = curr; |
25f72752 AM |
2718 | } |
2719 | while (tail != curr && (tail = prev) != NULL); | |
2720 | ||
a248e267 | 2721 | /* But wait, there's more! Input sections up to 240000 |
25f72752 | 2722 | bytes before the stub section can be handled by it too. */ |
47d89dba | 2723 | if (!stubs_always_before_branch) |
25f72752 | 2724 | { |
47d89dba AM |
2725 | total = 0; |
2726 | while (prev != NULL | |
2727 | && ((total += tail->output_offset - prev->output_offset) | |
2728 | < stub_group_size)) | |
2729 | { | |
2730 | tail = prev; | |
2731 | prev = PREV_SEC (tail); | |
83c81bfe | 2732 | htab->stub_group[tail->id].link_sec = curr; |
47d89dba | 2733 | } |
25f72752 AM |
2734 | } |
2735 | tail = prev; | |
2736 | } | |
2737 | } | |
b4655ea9 AM |
2738 | while (list-- != htab->input_list); |
2739 | free (htab->input_list); | |
1badb539 | 2740 | #undef PREV_SEC |
b4655ea9 AM |
2741 | } |
2742 | ||
2743 | /* Read in all local syms for all input bfds, and create hash entries | |
2744 | for export stubs if we are building a multi-subspace shared lib. | |
2745 | Returns -1 on error, 1 if export stubs created, 0 otherwise. */ | |
2746 | ||
2747 | static int | |
2748 | get_local_syms (output_bfd, input_bfd, info) | |
2749 | bfd *output_bfd; | |
2750 | bfd *input_bfd; | |
2751 | struct bfd_link_info *info; | |
2752 | { | |
2753 | unsigned int bfd_indx; | |
2754 | Elf_Internal_Sym *local_syms, **all_local_syms; | |
2755 | int stub_changed = 0; | |
2756 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
30667bf3 AM |
2757 | |
2758 | /* We want to read in symbol extension records only once. To do this | |
2759 | we need to read in the local symbols in parallel and save them for | |
2760 | later use; so hold pointers to the local symbols in an array. */ | |
b4655ea9 | 2761 | bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count; |
dc810e39 | 2762 | all_local_syms = (Elf_Internal_Sym **) bfd_zmalloc (amt); |
b4655ea9 | 2763 | htab->all_local_syms = all_local_syms; |
30667bf3 | 2764 | if (all_local_syms == NULL) |
b4655ea9 | 2765 | return -1; |
30667bf3 AM |
2766 | |
2767 | /* Walk over all the input BFDs, swapping in local symbols. | |
2768 | If we are creating a shared library, create hash entries for the | |
2769 | export stubs. */ | |
b4655ea9 | 2770 | for (bfd_indx = 0; |
30667bf3 | 2771 | input_bfd != NULL; |
25f72752 | 2772 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2773 | { |
2774 | Elf_Internal_Shdr *symtab_hdr; | |
edd21aca | 2775 | |
252b5132 RH |
2776 | /* We'll need the symbol table in a second. */ |
2777 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2778 | if (symtab_hdr->sh_info == 0) | |
2779 | continue; | |
2780 | ||
6cdc0ccc AM |
2781 | /* We need an array of the local symbols attached to the input bfd. */ |
2782 | local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
edd21aca | 2783 | if (local_syms == NULL) |
edd21aca | 2784 | { |
6cdc0ccc AM |
2785 | local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, |
2786 | symtab_hdr->sh_info, 0, | |
2787 | NULL, NULL, NULL); | |
2788 | /* Cache them for elf_link_input_bfd. */ | |
2789 | symtab_hdr->contents = (unsigned char *) local_syms; | |
edd21aca | 2790 | } |
6cdc0ccc AM |
2791 | if (local_syms == NULL) |
2792 | return -1; | |
edd21aca | 2793 | |
6cdc0ccc | 2794 | all_local_syms[bfd_indx] = local_syms; |
edd21aca | 2795 | |
83c81bfe | 2796 | if (info->shared && htab->multi_subspace) |
30667bf3 | 2797 | { |
25f72752 AM |
2798 | struct elf_link_hash_entry **sym_hashes; |
2799 | struct elf_link_hash_entry **end_hashes; | |
30667bf3 AM |
2800 | unsigned int symcount; |
2801 | ||
2802 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2803 | - symtab_hdr->sh_info); | |
25f72752 AM |
2804 | sym_hashes = elf_sym_hashes (input_bfd); |
2805 | end_hashes = sym_hashes + symcount; | |
30667bf3 AM |
2806 | |
2807 | /* Look through the global syms for functions; We need to | |
2808 | build export stubs for all globally visible functions. */ | |
25f72752 | 2809 | for (; sym_hashes < end_hashes; sym_hashes++) |
30667bf3 AM |
2810 | { |
2811 | struct elf32_hppa_link_hash_entry *hash; | |
2812 | ||
25f72752 | 2813 | hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes; |
30667bf3 AM |
2814 | |
2815 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2816 | || hash->elf.root.type == bfd_link_hash_warning) | |
2817 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2818 | hash->elf.root.u.i.link); | |
2819 | ||
2820 | /* At this point in the link, undefined syms have been | |
2821 | resolved, so we need to check that the symbol was | |
2822 | defined in this BFD. */ | |
2823 | if ((hash->elf.root.type == bfd_link_hash_defined | |
2824 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2825 | && hash->elf.type == STT_FUNC | |
2826 | && hash->elf.root.u.def.section->output_section != NULL | |
25f72752 AM |
2827 | && (hash->elf.root.u.def.section->output_section->owner |
2828 | == output_bfd) | |
30667bf3 AM |
2829 | && hash->elf.root.u.def.section->owner == input_bfd |
2830 | && (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
2831 | && !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) | |
2832 | && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT) | |
2833 | { | |
2834 | asection *sec; | |
2835 | const char *stub_name; | |
2836 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2837 | ||
2838 | sec = hash->elf.root.u.def.section; | |
2839 | stub_name = hash->elf.root.root.string; | |
83c81bfe | 2840 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 | 2841 | stub_name, |
b34976b6 | 2842 | FALSE, FALSE); |
30667bf3 AM |
2843 | if (stub_entry == NULL) |
2844 | { | |
83c81bfe | 2845 | stub_entry = hppa_add_stub (stub_name, sec, htab); |
30667bf3 | 2846 | if (!stub_entry) |
b4655ea9 | 2847 | return -1; |
30667bf3 AM |
2848 | |
2849 | stub_entry->target_value = hash->elf.root.u.def.value; | |
2850 | stub_entry->target_section = hash->elf.root.u.def.section; | |
2851 | stub_entry->stub_type = hppa_stub_export; | |
2852 | stub_entry->h = hash; | |
2853 | stub_changed = 1; | |
2854 | } | |
2855 | else | |
2856 | { | |
2857 | (*_bfd_error_handler) (_("%s: duplicate export stub %s"), | |
8f615d07 AM |
2858 | bfd_archive_filename (input_bfd), |
2859 | stub_name); | |
30667bf3 AM |
2860 | } |
2861 | } | |
2862 | } | |
30667bf3 AM |
2863 | } |
2864 | } | |
edd21aca | 2865 | |
b4655ea9 AM |
2866 | return stub_changed; |
2867 | } | |
2868 | ||
2869 | /* Determine and set the size of the stub section for a final link. | |
2870 | ||
2871 | The basic idea here is to examine all the relocations looking for | |
2872 | PC-relative calls to a target that is unreachable with a "bl" | |
2873 | instruction. */ | |
2874 | ||
b34976b6 | 2875 | bfd_boolean |
b4655ea9 AM |
2876 | elf32_hppa_size_stubs (output_bfd, stub_bfd, info, multi_subspace, group_size, |
2877 | add_stub_section, layout_sections_again) | |
2878 | bfd *output_bfd; | |
2879 | bfd *stub_bfd; | |
2880 | struct bfd_link_info *info; | |
b34976b6 | 2881 | bfd_boolean multi_subspace; |
b4655ea9 AM |
2882 | bfd_signed_vma group_size; |
2883 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
2884 | void (*layout_sections_again) PARAMS ((void)); | |
2885 | { | |
2886 | bfd_size_type stub_group_size; | |
b34976b6 AM |
2887 | bfd_boolean stubs_always_before_branch; |
2888 | bfd_boolean stub_changed; | |
b4655ea9 AM |
2889 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
2890 | ||
2891 | /* Stash our params away. */ | |
2892 | htab->stub_bfd = stub_bfd; | |
2893 | htab->multi_subspace = multi_subspace; | |
2894 | htab->add_stub_section = add_stub_section; | |
2895 | htab->layout_sections_again = layout_sections_again; | |
2896 | stubs_always_before_branch = group_size < 0; | |
2897 | if (group_size < 0) | |
2898 | stub_group_size = -group_size; | |
2899 | else | |
2900 | stub_group_size = group_size; | |
2901 | if (stub_group_size == 1) | |
2902 | { | |
2903 | /* Default values. */ | |
2904 | stub_group_size = 7680000; | |
2905 | if (htab->has_17bit_branch || htab->multi_subspace) | |
2906 | stub_group_size = 240000; | |
2907 | if (htab->has_12bit_branch) | |
2908 | stub_group_size = 7500; | |
2909 | } | |
2910 | ||
2911 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
2912 | ||
2913 | switch (get_local_syms (output_bfd, info->input_bfds, info)) | |
2914 | { | |
2915 | default: | |
2916 | if (htab->all_local_syms) | |
2917 | goto error_ret_free_local; | |
b34976b6 | 2918 | return FALSE; |
b4655ea9 AM |
2919 | |
2920 | case 0: | |
b34976b6 | 2921 | stub_changed = FALSE; |
b4655ea9 AM |
2922 | break; |
2923 | ||
2924 | case 1: | |
b34976b6 | 2925 | stub_changed = TRUE; |
b4655ea9 AM |
2926 | break; |
2927 | } | |
2928 | ||
edd21aca AM |
2929 | while (1) |
2930 | { | |
b4655ea9 AM |
2931 | bfd *input_bfd; |
2932 | unsigned int bfd_indx; | |
30667bf3 AM |
2933 | asection *stub_sec; |
2934 | ||
25f72752 | 2935 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2936 | input_bfd != NULL; |
25f72752 | 2937 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2938 | { |
2939 | Elf_Internal_Shdr *symtab_hdr; | |
b4655ea9 AM |
2940 | asection *section; |
2941 | Elf_Internal_Sym *local_syms; | |
30667bf3 AM |
2942 | |
2943 | /* We'll need the symbol table in a second. */ | |
2944 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2945 | if (symtab_hdr->sh_info == 0) | |
2946 | continue; | |
2947 | ||
b4655ea9 | 2948 | local_syms = htab->all_local_syms[bfd_indx]; |
30667bf3 AM |
2949 | |
2950 | /* Walk over each section attached to the input bfd. */ | |
2951 | for (section = input_bfd->sections; | |
2952 | section != NULL; | |
25f72752 | 2953 | section = section->next) |
30667bf3 | 2954 | { |
30667bf3 AM |
2955 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
2956 | ||
2957 | /* If there aren't any relocs, then there's nothing more | |
2958 | to do. */ | |
2959 | if ((section->flags & SEC_RELOC) == 0 | |
2960 | || section->reloc_count == 0) | |
2961 | continue; | |
2962 | ||
25f72752 AM |
2963 | /* If this section is a link-once section that will be |
2964 | discarded, then don't create any stubs. */ | |
2965 | if (section->output_section == NULL | |
2966 | || section->output_section->owner != output_bfd) | |
2967 | continue; | |
2968 | ||
1e2f5b6e AM |
2969 | /* Get the relocs. */ |
2970 | internal_relocs | |
2971 | = _bfd_elf32_link_read_relocs (input_bfd, section, NULL, | |
2972 | (Elf_Internal_Rela *) NULL, | |
2973 | info->keep_memory); | |
30667bf3 | 2974 | if (internal_relocs == NULL) |
1e2f5b6e | 2975 | goto error_ret_free_local; |
30667bf3 AM |
2976 | |
2977 | /* Now examine each relocation. */ | |
2978 | irela = internal_relocs; | |
2979 | irelaend = irela + section->reloc_count; | |
2980 | for (; irela < irelaend; irela++) | |
2981 | { | |
2982 | unsigned int r_type, r_indx; | |
2983 | enum elf32_hppa_stub_type stub_type; | |
2984 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2985 | asection *sym_sec; | |
2986 | bfd_vma sym_value; | |
2987 | bfd_vma destination; | |
2988 | struct elf32_hppa_link_hash_entry *hash; | |
2989 | char *stub_name; | |
25f72752 | 2990 | const asection *id_sec; |
30667bf3 AM |
2991 | |
2992 | r_type = ELF32_R_TYPE (irela->r_info); | |
2993 | r_indx = ELF32_R_SYM (irela->r_info); | |
2994 | ||
2995 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2996 | { | |
2997 | bfd_set_error (bfd_error_bad_value); | |
1e2f5b6e AM |
2998 | error_ret_free_internal: |
2999 | if (elf_section_data (section)->relocs == NULL) | |
3000 | free (internal_relocs); | |
3001 | goto error_ret_free_local; | |
30667bf3 AM |
3002 | } |
3003 | ||
3004 | /* Only look for stubs on call instructions. */ | |
3005 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
3006 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
3007 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
3008 | continue; | |
3009 | ||
3010 | /* Now determine the call target, its name, value, | |
3011 | section. */ | |
3012 | sym_sec = NULL; | |
3013 | sym_value = 0; | |
3014 | destination = 0; | |
3015 | hash = NULL; | |
3016 | if (r_indx < symtab_hdr->sh_info) | |
3017 | { | |
3018 | /* It's a local symbol. */ | |
3019 | Elf_Internal_Sym *sym; | |
3020 | Elf_Internal_Shdr *hdr; | |
3021 | ||
3022 | sym = local_syms + r_indx; | |
3023 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
3024 | sym_sec = hdr->bfd_section; | |
3025 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
3026 | sym_value = sym->st_value; | |
3027 | destination = (sym_value + irela->r_addend | |
3028 | + sym_sec->output_offset | |
3029 | + sym_sec->output_section->vma); | |
3030 | } | |
3031 | else | |
3032 | { | |
3033 | /* It's an external symbol. */ | |
3034 | int e_indx; | |
3035 | ||
3036 | e_indx = r_indx - symtab_hdr->sh_info; | |
3037 | hash = ((struct elf32_hppa_link_hash_entry *) | |
3038 | elf_sym_hashes (input_bfd)[e_indx]); | |
3039 | ||
3040 | while (hash->elf.root.type == bfd_link_hash_indirect | |
3041 | || hash->elf.root.type == bfd_link_hash_warning) | |
3042 | hash = ((struct elf32_hppa_link_hash_entry *) | |
3043 | hash->elf.root.u.i.link); | |
3044 | ||
3045 | if (hash->elf.root.type == bfd_link_hash_defined | |
3046 | || hash->elf.root.type == bfd_link_hash_defweak) | |
3047 | { | |
3048 | sym_sec = hash->elf.root.u.def.section; | |
3049 | sym_value = hash->elf.root.u.def.value; | |
3050 | if (sym_sec->output_section != NULL) | |
3051 | destination = (sym_value + irela->r_addend | |
3052 | + sym_sec->output_offset | |
3053 | + sym_sec->output_section->vma); | |
3054 | } | |
3055 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
c432ba1a AM |
3056 | { |
3057 | if (! info->shared) | |
3058 | continue; | |
3059 | } | |
30667bf3 | 3060 | else if (hash->elf.root.type == bfd_link_hash_undefined) |
c432ba1a AM |
3061 | { |
3062 | if (! (info->shared | |
3063 | && !info->no_undefined | |
3064 | && (ELF_ST_VISIBILITY (hash->elf.other) | |
3065 | == STV_DEFAULT) | |
3066 | && hash->elf.type != STT_PARISC_MILLI)) | |
3067 | continue; | |
3068 | } | |
30667bf3 AM |
3069 | else |
3070 | { | |
3071 | bfd_set_error (bfd_error_bad_value); | |
3072 | goto error_ret_free_internal; | |
3073 | } | |
3074 | } | |
3075 | ||
3076 | /* Determine what (if any) linker stub is needed. */ | |
3077 | stub_type = hppa_type_of_stub (section, irela, hash, | |
3078 | destination); | |
3079 | if (stub_type == hppa_stub_none) | |
3080 | continue; | |
3081 | ||
25f72752 | 3082 | /* Support for grouping stub sections. */ |
83c81bfe | 3083 | id_sec = htab->stub_group[section->id].link_sec; |
25f72752 | 3084 | |
30667bf3 | 3085 | /* Get the name of this stub. */ |
25f72752 | 3086 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela); |
30667bf3 AM |
3087 | if (!stub_name) |
3088 | goto error_ret_free_internal; | |
3089 | ||
83c81bfe | 3090 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 | 3091 | stub_name, |
b34976b6 | 3092 | FALSE, FALSE); |
30667bf3 AM |
3093 | if (stub_entry != NULL) |
3094 | { | |
3095 | /* The proper stub has already been created. */ | |
3096 | free (stub_name); | |
3097 | continue; | |
3098 | } | |
3099 | ||
83c81bfe | 3100 | stub_entry = hppa_add_stub (stub_name, section, htab); |
30667bf3 AM |
3101 | if (stub_entry == NULL) |
3102 | { | |
3103 | free (stub_name); | |
1e2f5b6e | 3104 | goto error_ret_free_internal; |
30667bf3 AM |
3105 | } |
3106 | ||
3107 | stub_entry->target_value = sym_value; | |
3108 | stub_entry->target_section = sym_sec; | |
3109 | stub_entry->stub_type = stub_type; | |
3110 | if (info->shared) | |
3111 | { | |
3112 | if (stub_type == hppa_stub_import) | |
3113 | stub_entry->stub_type = hppa_stub_import_shared; | |
98ceb8ce | 3114 | else if (stub_type == hppa_stub_long_branch) |
30667bf3 AM |
3115 | stub_entry->stub_type = hppa_stub_long_branch_shared; |
3116 | } | |
3117 | stub_entry->h = hash; | |
b34976b6 | 3118 | stub_changed = TRUE; |
30667bf3 AM |
3119 | } |
3120 | ||
3121 | /* We're done with the internal relocs, free them. */ | |
1e2f5b6e AM |
3122 | if (elf_section_data (section)->relocs == NULL) |
3123 | free (internal_relocs); | |
30667bf3 AM |
3124 | } |
3125 | } | |
3126 | ||
3127 | if (!stub_changed) | |
3128 | break; | |
3129 | ||
3130 | /* OK, we've added some stubs. Find out the new size of the | |
3131 | stub sections. */ | |
83c81bfe | 3132 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3133 | stub_sec != NULL; |
3134 | stub_sec = stub_sec->next) | |
3135 | { | |
74d1c347 AM |
3136 | stub_sec->_raw_size = 0; |
3137 | stub_sec->_cooked_size = 0; | |
3138 | } | |
74d1c347 | 3139 | |
83c81bfe | 3140 | bfd_hash_traverse (&htab->stub_hash_table, hppa_size_one_stub, htab); |
74d1c347 | 3141 | |
30667bf3 | 3142 | /* Ask the linker to do its stuff. */ |
83c81bfe | 3143 | (*htab->layout_sections_again) (); |
b34976b6 | 3144 | stub_changed = FALSE; |
30667bf3 AM |
3145 | } |
3146 | ||
6cdc0ccc | 3147 | free (htab->all_local_syms); |
b34976b6 | 3148 | return TRUE; |
30667bf3 AM |
3149 | |
3150 | error_ret_free_local: | |
b4655ea9 | 3151 | free (htab->all_local_syms); |
b34976b6 | 3152 | return FALSE; |
30667bf3 AM |
3153 | } |
3154 | ||
30667bf3 AM |
3155 | /* For a final link, this function is called after we have sized the |
3156 | stubs to provide a value for __gp. */ | |
3157 | ||
b34976b6 | 3158 | bfd_boolean |
30667bf3 AM |
3159 | elf32_hppa_set_gp (abfd, info) |
3160 | bfd *abfd; | |
3161 | struct bfd_link_info *info; | |
3162 | { | |
b4655ea9 AM |
3163 | struct bfd_link_hash_entry *h; |
3164 | asection *sec = NULL; | |
3165 | bfd_vma gp_val = 0; | |
83c81bfe | 3166 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3167 | |
83c81bfe | 3168 | htab = hppa_link_hash_table (info); |
b34976b6 | 3169 | h = bfd_link_hash_lookup (&htab->elf.root, "$global$", FALSE, FALSE, FALSE); |
30667bf3 | 3170 | |
df8634e3 | 3171 | if (h != NULL |
b4655ea9 AM |
3172 | && (h->type == bfd_link_hash_defined |
3173 | || h->type == bfd_link_hash_defweak)) | |
30667bf3 | 3174 | { |
b4655ea9 AM |
3175 | gp_val = h->u.def.value; |
3176 | sec = h->u.def.section; | |
30667bf3 AM |
3177 | } |
3178 | else | |
3179 | { | |
b4655ea9 AM |
3180 | asection *splt; |
3181 | asection *sgot; | |
3182 | ||
3183 | if (htab->elf.root.creator->flavour == bfd_target_elf_flavour) | |
3184 | { | |
3185 | splt = htab->splt; | |
3186 | sgot = htab->sgot; | |
3187 | } | |
3188 | else | |
3189 | { | |
3190 | /* If we're not elf, look up the output sections in the | |
3191 | hope we may actually find them. */ | |
3192 | splt = bfd_get_section_by_name (abfd, ".plt"); | |
3193 | sgot = bfd_get_section_by_name (abfd, ".got"); | |
3194 | } | |
3195 | ||
74d1c347 AM |
3196 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
3197 | or .data, if these sections exist. In the case of choosing | |
3198 | .plt try to make the LTP ideal for addressing anywhere in the | |
3199 | .plt or .got with a 14 bit signed offset. Typically, the end | |
3200 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
3201 | if either the .plt or .got is larger than 0x2000. If both | |
3202 | the .plt and .got are smaller than 0x2000, choose the end of | |
3203 | the .plt section. */ | |
b4655ea9 | 3204 | sec = splt; |
74d1c347 | 3205 | if (sec != NULL) |
30667bf3 | 3206 | { |
74d1c347 | 3207 | gp_val = sec->_raw_size; |
b4655ea9 | 3208 | if (gp_val > 0x2000 || (sgot && sgot->_raw_size > 0x2000)) |
74d1c347 AM |
3209 | { |
3210 | gp_val = 0x2000; | |
3211 | } | |
3212 | } | |
3213 | else | |
3214 | { | |
b4655ea9 | 3215 | sec = sgot; |
74d1c347 AM |
3216 | if (sec != NULL) |
3217 | { | |
3218 | /* We know we don't have a .plt. If .got is large, | |
3219 | offset our LTP. */ | |
3220 | if (sec->_raw_size > 0x2000) | |
3221 | gp_val = 0x2000; | |
3222 | } | |
3223 | else | |
3224 | { | |
3225 | /* No .plt or .got. Who cares what the LTP is? */ | |
3226 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3227 | } | |
30667bf3 | 3228 | } |
df8634e3 AM |
3229 | |
3230 | if (h != NULL) | |
3231 | { | |
b4655ea9 AM |
3232 | h->type = bfd_link_hash_defined; |
3233 | h->u.def.value = gp_val; | |
df8634e3 | 3234 | if (sec != NULL) |
b4655ea9 | 3235 | h->u.def.section = sec; |
df8634e3 | 3236 | else |
b4655ea9 | 3237 | h->u.def.section = bfd_abs_section_ptr; |
df8634e3 | 3238 | } |
30667bf3 AM |
3239 | } |
3240 | ||
b32b5d6e | 3241 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
3242 | gp_val += sec->output_section->vma + sec->output_offset; |
3243 | ||
3244 | elf_gp (abfd) = gp_val; | |
b34976b6 | 3245 | return TRUE; |
30667bf3 AM |
3246 | } |
3247 | ||
30667bf3 AM |
3248 | /* Build all the stubs associated with the current output file. The |
3249 | stubs are kept in a hash table attached to the main linker hash | |
3250 | table. We also set up the .plt entries for statically linked PIC | |
3251 | functions here. This function is called via hppaelf_finish in the | |
3252 | linker. */ | |
3253 | ||
b34976b6 | 3254 | bfd_boolean |
30667bf3 AM |
3255 | elf32_hppa_build_stubs (info) |
3256 | struct bfd_link_info *info; | |
3257 | { | |
3258 | asection *stub_sec; | |
3259 | struct bfd_hash_table *table; | |
83c81bfe | 3260 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3261 | |
83c81bfe | 3262 | htab = hppa_link_hash_table (info); |
30667bf3 | 3263 | |
83c81bfe | 3264 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3265 | stub_sec != NULL; |
3266 | stub_sec = stub_sec->next) | |
3267 | { | |
dc810e39 | 3268 | bfd_size_type size; |
30667bf3 AM |
3269 | |
3270 | /* Allocate memory to hold the linker stubs. */ | |
74d1c347 | 3271 | size = stub_sec->_raw_size; |
83c81bfe | 3272 | stub_sec->contents = (unsigned char *) bfd_zalloc (htab->stub_bfd, size); |
30667bf3 | 3273 | if (stub_sec->contents == NULL && size != 0) |
b34976b6 | 3274 | return FALSE; |
74d1c347 | 3275 | stub_sec->_raw_size = 0; |
30667bf3 AM |
3276 | } |
3277 | ||
3278 | /* Build the stubs as directed by the stub hash table. */ | |
83c81bfe | 3279 | table = &htab->stub_hash_table; |
30667bf3 AM |
3280 | bfd_hash_traverse (table, hppa_build_one_stub, info); |
3281 | ||
b34976b6 | 3282 | return TRUE; |
30667bf3 AM |
3283 | } |
3284 | ||
c46b7515 AM |
3285 | /* Perform a final link. */ |
3286 | ||
b34976b6 | 3287 | static bfd_boolean |
c46b7515 AM |
3288 | elf32_hppa_final_link (abfd, info) |
3289 | bfd *abfd; | |
3290 | struct bfd_link_info *info; | |
3291 | { | |
4dc86686 AM |
3292 | /* Invoke the regular ELF linker to do all the work. */ |
3293 | if (!bfd_elf32_bfd_final_link (abfd, info)) | |
b34976b6 | 3294 | return FALSE; |
c46b7515 AM |
3295 | |
3296 | /* If we're producing a final executable, sort the contents of the | |
985142a4 | 3297 | unwind section. */ |
46fe4e66 | 3298 | return elf_hppa_sort_unwind (abfd); |
c46b7515 AM |
3299 | } |
3300 | ||
3301 | /* Record the lowest address for the data and text segments. */ | |
3302 | ||
3303 | static void | |
3304 | hppa_record_segment_addr (abfd, section, data) | |
3305 | bfd *abfd ATTRIBUTE_UNUSED; | |
3306 | asection *section; | |
3307 | PTR data; | |
3308 | { | |
83c81bfe | 3309 | struct elf32_hppa_link_hash_table *htab; |
c46b7515 | 3310 | |
83c81bfe | 3311 | htab = (struct elf32_hppa_link_hash_table *) data; |
c46b7515 AM |
3312 | |
3313 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3314 | { | |
3315 | bfd_vma value = section->vma - section->filepos; | |
3316 | ||
3317 | if ((section->flags & SEC_READONLY) != 0) | |
3318 | { | |
83c81bfe AM |
3319 | if (value < htab->text_segment_base) |
3320 | htab->text_segment_base = value; | |
c46b7515 AM |
3321 | } |
3322 | else | |
3323 | { | |
83c81bfe AM |
3324 | if (value < htab->data_segment_base) |
3325 | htab->data_segment_base = value; | |
c46b7515 AM |
3326 | } |
3327 | } | |
3328 | } | |
3329 | ||
30667bf3 AM |
3330 | /* Perform a relocation as part of a final link. */ |
3331 | ||
3332 | static bfd_reloc_status_type | |
83c81bfe | 3333 | final_link_relocate (input_section, contents, rel, value, htab, sym_sec, h) |
30667bf3 AM |
3334 | asection *input_section; |
3335 | bfd_byte *contents; | |
3336 | const Elf_Internal_Rela *rel; | |
3337 | bfd_vma value; | |
83c81bfe | 3338 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3339 | asection *sym_sec; |
3340 | struct elf32_hppa_link_hash_entry *h; | |
3341 | { | |
3342 | int insn; | |
3343 | unsigned int r_type = ELF32_R_TYPE (rel->r_info); | |
3344 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; | |
3345 | int r_format = howto->bitsize; | |
3346 | enum hppa_reloc_field_selector_type_alt r_field; | |
3347 | bfd *input_bfd = input_section->owner; | |
3348 | bfd_vma offset = rel->r_offset; | |
3349 | bfd_vma max_branch_offset = 0; | |
3350 | bfd_byte *hit_data = contents + offset; | |
3351 | bfd_signed_vma addend = rel->r_addend; | |
3352 | bfd_vma location; | |
3353 | struct elf32_hppa_stub_hash_entry *stub_entry = NULL; | |
3354 | int val; | |
3355 | ||
3356 | if (r_type == R_PARISC_NONE) | |
3357 | return bfd_reloc_ok; | |
3358 | ||
3359 | insn = bfd_get_32 (input_bfd, hit_data); | |
3360 | ||
3361 | /* Find out where we are and where we're going. */ | |
3362 | location = (offset + | |
3363 | input_section->output_offset + | |
3364 | input_section->output_section->vma); | |
3365 | ||
3366 | switch (r_type) | |
3367 | { | |
3368 | case R_PARISC_PCREL12F: | |
3369 | case R_PARISC_PCREL17F: | |
3370 | case R_PARISC_PCREL22F: | |
067fa4a6 AM |
3371 | /* If this call should go via the plt, find the import stub in |
3372 | the stub hash. */ | |
30667bf3 AM |
3373 | if (sym_sec == NULL |
3374 | || sym_sec->output_section == NULL | |
12cca0d2 | 3375 | || (h != NULL |
067fa4a6 AM |
3376 | && h->elf.plt.offset != (bfd_vma) -1 |
3377 | && (h->elf.dynindx != -1 || h->pic_call) | |
3378 | && !h->plabel)) | |
30667bf3 AM |
3379 | { |
3380 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3381 | h, rel, htab); |
30667bf3 AM |
3382 | if (stub_entry != NULL) |
3383 | { | |
3384 | value = (stub_entry->stub_offset | |
3385 | + stub_entry->stub_sec->output_offset | |
3386 | + stub_entry->stub_sec->output_section->vma); | |
3387 | addend = 0; | |
3388 | } | |
3389 | else if (sym_sec == NULL && h != NULL | |
3390 | && h->elf.root.type == bfd_link_hash_undefweak) | |
3391 | { | |
db20fd76 AM |
3392 | /* It's OK if undefined weak. Calls to undefined weak |
3393 | symbols behave as if the "called" function | |
3394 | immediately returns. We can thus call to a weak | |
3395 | function without first checking whether the function | |
3396 | is defined. */ | |
30667bf3 | 3397 | value = location; |
db20fd76 | 3398 | addend = 8; |
30667bf3 AM |
3399 | } |
3400 | else | |
f09ebc7d | 3401 | return bfd_reloc_undefined; |
30667bf3 AM |
3402 | } |
3403 | /* Fall thru. */ | |
3404 | ||
3405 | case R_PARISC_PCREL21L: | |
3406 | case R_PARISC_PCREL17C: | |
3407 | case R_PARISC_PCREL17R: | |
3408 | case R_PARISC_PCREL14R: | |
3409 | case R_PARISC_PCREL14F: | |
3410 | /* Make it a pc relative offset. */ | |
3411 | value -= location; | |
3412 | addend -= 8; | |
3413 | break; | |
3414 | ||
3415 | case R_PARISC_DPREL21L: | |
3416 | case R_PARISC_DPREL14R: | |
3417 | case R_PARISC_DPREL14F: | |
3418 | /* For all the DP relative relocations, we need to examine the symbol's | |
3419 | section. If it's a code section, then "data pointer relative" makes | |
3420 | no sense. In that case we don't adjust the "value", and for 21 bit | |
3421 | addil instructions, we change the source addend register from %dp to | |
3422 | %r0. This situation commonly arises when a variable's "constness" | |
3423 | is declared differently from the way the variable is defined. For | |
3424 | instance: "extern int foo" with foo defined as "const int foo". */ | |
3425 | if (sym_sec == NULL) | |
3426 | break; | |
3427 | if ((sym_sec->flags & SEC_CODE) != 0) | |
3428 | { | |
3429 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3430 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3431 | { | |
3432 | insn &= ~ (0x1f << 21); | |
067fa4a6 | 3433 | #if 0 /* debug them. */ |
30667bf3 AM |
3434 | (*_bfd_error_handler) |
3435 | (_("%s(%s+0x%lx): fixing %s"), | |
8f615d07 | 3436 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3437 | input_section->name, |
3438 | (long) rel->r_offset, | |
3439 | howto->name); | |
3440 | #endif | |
3441 | } | |
3442 | /* Now try to make things easy for the dynamic linker. */ | |
3443 | ||
3444 | break; | |
3445 | } | |
74d1c347 | 3446 | /* Fall thru. */ |
30667bf3 AM |
3447 | |
3448 | case R_PARISC_DLTIND21L: | |
3449 | case R_PARISC_DLTIND14R: | |
3450 | case R_PARISC_DLTIND14F: | |
3451 | value -= elf_gp (input_section->output_section->owner); | |
3452 | break; | |
3453 | ||
c46b7515 AM |
3454 | case R_PARISC_SEGREL32: |
3455 | if ((sym_sec->flags & SEC_CODE) != 0) | |
83c81bfe | 3456 | value -= htab->text_segment_base; |
c46b7515 | 3457 | else |
83c81bfe | 3458 | value -= htab->data_segment_base; |
c46b7515 AM |
3459 | break; |
3460 | ||
30667bf3 AM |
3461 | default: |
3462 | break; | |
3463 | } | |
3464 | ||
3465 | switch (r_type) | |
3466 | { | |
3467 | case R_PARISC_DIR32: | |
47d89dba | 3468 | case R_PARISC_DIR14F: |
30667bf3 AM |
3469 | case R_PARISC_DIR17F: |
3470 | case R_PARISC_PCREL17C: | |
3471 | case R_PARISC_PCREL14F: | |
3472 | case R_PARISC_DPREL14F: | |
3473 | case R_PARISC_PLABEL32: | |
3474 | case R_PARISC_DLTIND14F: | |
3475 | case R_PARISC_SEGBASE: | |
3476 | case R_PARISC_SEGREL32: | |
3477 | r_field = e_fsel; | |
3478 | break; | |
3479 | ||
1bf42538 | 3480 | case R_PARISC_DLTIND21L: |
30667bf3 | 3481 | case R_PARISC_PCREL21L: |
30667bf3 | 3482 | case R_PARISC_PLABEL21L: |
1bf42538 JL |
3483 | r_field = e_lsel; |
3484 | break; | |
3485 | ||
3486 | case R_PARISC_DIR21L: | |
3487 | case R_PARISC_DPREL21L: | |
30667bf3 AM |
3488 | r_field = e_lrsel; |
3489 | break; | |
3490 | ||
30667bf3 | 3491 | case R_PARISC_PCREL17R: |
30667bf3 | 3492 | case R_PARISC_PCREL14R: |
30667bf3 AM |
3493 | case R_PARISC_PLABEL14R: |
3494 | case R_PARISC_DLTIND14R: | |
1bf42538 JL |
3495 | r_field = e_rsel; |
3496 | break; | |
3497 | ||
3498 | case R_PARISC_DIR17R: | |
3499 | case R_PARISC_DIR14R: | |
3500 | case R_PARISC_DPREL14R: | |
30667bf3 AM |
3501 | r_field = e_rrsel; |
3502 | break; | |
3503 | ||
3504 | case R_PARISC_PCREL12F: | |
3505 | case R_PARISC_PCREL17F: | |
3506 | case R_PARISC_PCREL22F: | |
3507 | r_field = e_fsel; | |
3508 | ||
3509 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3510 | { | |
3511 | max_branch_offset = (1 << (17-1)) << 2; | |
3512 | } | |
3513 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3514 | { | |
3515 | max_branch_offset = (1 << (12-1)) << 2; | |
3516 | } | |
3517 | else | |
3518 | { | |
3519 | max_branch_offset = (1 << (22-1)) << 2; | |
3520 | } | |
3521 | ||
3522 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3523 | undefined syms. We've already checked for a stub for the | |
3524 | shared undefined case. */ | |
3525 | if (sym_sec == NULL) | |
3526 | break; | |
3527 | ||
3528 | /* If the branch is out of reach, then redirect the | |
3529 | call to the local stub for this function. */ | |
3530 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3531 | { | |
3532 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3533 | h, rel, htab); |
30667bf3 | 3534 | if (stub_entry == NULL) |
f09ebc7d | 3535 | return bfd_reloc_undefined; |
30667bf3 AM |
3536 | |
3537 | /* Munge up the value and addend so that we call the stub | |
3538 | rather than the procedure directly. */ | |
3539 | value = (stub_entry->stub_offset | |
3540 | + stub_entry->stub_sec->output_offset | |
3541 | + stub_entry->stub_sec->output_section->vma | |
3542 | - location); | |
3543 | addend = -8; | |
3544 | } | |
3545 | break; | |
3546 | ||
3547 | /* Something we don't know how to handle. */ | |
3548 | default: | |
3549 | return bfd_reloc_notsupported; | |
3550 | } | |
3551 | ||
3552 | /* Make sure we can reach the stub. */ | |
3553 | if (max_branch_offset != 0 | |
3554 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3555 | { | |
3556 | (*_bfd_error_handler) | |
3557 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), | |
8f615d07 | 3558 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3559 | input_section->name, |
3560 | (long) rel->r_offset, | |
3561 | stub_entry->root.string); | |
ce757d15 | 3562 | bfd_set_error (bfd_error_bad_value); |
30667bf3 AM |
3563 | return bfd_reloc_notsupported; |
3564 | } | |
3565 | ||
3566 | val = hppa_field_adjust (value, addend, r_field); | |
3567 | ||
3568 | switch (r_type) | |
3569 | { | |
3570 | case R_PARISC_PCREL12F: | |
3571 | case R_PARISC_PCREL17C: | |
3572 | case R_PARISC_PCREL17F: | |
3573 | case R_PARISC_PCREL17R: | |
3574 | case R_PARISC_PCREL22F: | |
3575 | case R_PARISC_DIR17F: | |
3576 | case R_PARISC_DIR17R: | |
3577 | /* This is a branch. Divide the offset by four. | |
3578 | Note that we need to decide whether it's a branch or | |
3579 | otherwise by inspecting the reloc. Inspecting insn won't | |
3580 | work as insn might be from a .word directive. */ | |
3581 | val >>= 2; | |
3582 | break; | |
3583 | ||
3584 | default: | |
3585 | break; | |
3586 | } | |
3587 | ||
3588 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3589 | ||
3590 | /* Update the instruction word. */ | |
74d1c347 | 3591 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3592 | return bfd_reloc_ok; |
3593 | } | |
3594 | ||
30667bf3 AM |
3595 | /* Relocate an HPPA ELF section. */ |
3596 | ||
b34976b6 | 3597 | static bfd_boolean |
30667bf3 AM |
3598 | elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section, |
3599 | contents, relocs, local_syms, local_sections) | |
3600 | bfd *output_bfd; | |
3601 | struct bfd_link_info *info; | |
3602 | bfd *input_bfd; | |
3603 | asection *input_section; | |
3604 | bfd_byte *contents; | |
3605 | Elf_Internal_Rela *relocs; | |
3606 | Elf_Internal_Sym *local_syms; | |
3607 | asection **local_sections; | |
3608 | { | |
30667bf3 | 3609 | bfd_vma *local_got_offsets; |
83c81bfe | 3610 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3611 | Elf_Internal_Shdr *symtab_hdr; |
3612 | Elf_Internal_Rela *rel; | |
3613 | Elf_Internal_Rela *relend; | |
30667bf3 | 3614 | |
f0fe0e16 | 3615 | if (info->relocateable) |
b34976b6 | 3616 | return TRUE; |
f0fe0e16 | 3617 | |
30667bf3 AM |
3618 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
3619 | ||
83c81bfe | 3620 | htab = hppa_link_hash_table (info); |
74d1c347 | 3621 | local_got_offsets = elf_local_got_offsets (input_bfd); |
30667bf3 AM |
3622 | |
3623 | rel = relocs; | |
3624 | relend = relocs + input_section->reloc_count; | |
3625 | for (; rel < relend; rel++) | |
3626 | { | |
3627 | unsigned int r_type; | |
3628 | reloc_howto_type *howto; | |
3629 | unsigned int r_symndx; | |
3630 | struct elf32_hppa_link_hash_entry *h; | |
3631 | Elf_Internal_Sym *sym; | |
3632 | asection *sym_sec; | |
3633 | bfd_vma relocation; | |
3634 | bfd_reloc_status_type r; | |
3635 | const char *sym_name; | |
b34976b6 AM |
3636 | bfd_boolean plabel; |
3637 | bfd_boolean warned_undef; | |
30667bf3 AM |
3638 | |
3639 | r_type = ELF32_R_TYPE (rel->r_info); | |
3640 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3641 | { | |
3642 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3643 | return FALSE; |
30667bf3 AM |
3644 | } |
3645 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3646 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3647 | continue; | |
3648 | ||
30667bf3 | 3649 | /* This is a final link. */ |
f0fe0e16 | 3650 | r_symndx = ELF32_R_SYM (rel->r_info); |
30667bf3 AM |
3651 | h = NULL; |
3652 | sym = NULL; | |
3653 | sym_sec = NULL; | |
b34976b6 | 3654 | warned_undef = FALSE; |
30667bf3 AM |
3655 | if (r_symndx < symtab_hdr->sh_info) |
3656 | { | |
3657 | /* This is a local symbol, h defaults to NULL. */ | |
3658 | sym = local_syms + r_symndx; | |
3659 | sym_sec = local_sections[r_symndx]; | |
f8df10f4 | 3660 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sym_sec, rel); |
30667bf3 AM |
3661 | } |
3662 | else | |
3663 | { | |
3664 | int indx; | |
3665 | ||
3666 | /* It's a global; Find its entry in the link hash. */ | |
3667 | indx = r_symndx - symtab_hdr->sh_info; | |
3668 | h = ((struct elf32_hppa_link_hash_entry *) | |
3669 | elf_sym_hashes (input_bfd)[indx]); | |
3670 | while (h->elf.root.type == bfd_link_hash_indirect | |
3671 | || h->elf.root.type == bfd_link_hash_warning) | |
3672 | h = (struct elf32_hppa_link_hash_entry *) h->elf.root.u.i.link; | |
3673 | ||
3674 | relocation = 0; | |
3675 | if (h->elf.root.type == bfd_link_hash_defined | |
3676 | || h->elf.root.type == bfd_link_hash_defweak) | |
3677 | { | |
3678 | sym_sec = h->elf.root.u.def.section; | |
3679 | /* If sym_sec->output_section is NULL, then it's a | |
3680 | symbol defined in a shared library. */ | |
3681 | if (sym_sec->output_section != NULL) | |
3682 | relocation = (h->elf.root.u.def.value | |
3683 | + sym_sec->output_offset | |
3684 | + sym_sec->output_section->vma); | |
3685 | } | |
3686 | else if (h->elf.root.type == bfd_link_hash_undefweak) | |
3687 | ; | |
3688 | else if (info->shared && !info->no_undefined | |
49e9d0d3 AM |
3689 | && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
3690 | && h->elf.type != STT_PARISC_MILLI) | |
30667bf3 | 3691 | { |
671bae9c | 3692 | if (info->symbolic && !info->allow_shlib_undefined) |
f09ebc7d AM |
3693 | { |
3694 | if (!((*info->callbacks->undefined_symbol) | |
3695 | (info, h->elf.root.root.string, input_bfd, | |
b34976b6 AM |
3696 | input_section, rel->r_offset, FALSE))) |
3697 | return FALSE; | |
3698 | warned_undef = TRUE; | |
f09ebc7d | 3699 | } |
30667bf3 AM |
3700 | } |
3701 | else | |
3702 | { | |
3703 | if (!((*info->callbacks->undefined_symbol) | |
3704 | (info, h->elf.root.root.string, input_bfd, | |
b34976b6 AM |
3705 | input_section, rel->r_offset, TRUE))) |
3706 | return FALSE; | |
3707 | warned_undef = TRUE; | |
30667bf3 AM |
3708 | } |
3709 | } | |
3710 | ||
3711 | /* Do any required modifications to the relocation value, and | |
25f72752 AM |
3712 | determine what types of dynamic info we need to output, if |
3713 | any. */ | |
74d1c347 | 3714 | plabel = 0; |
30667bf3 AM |
3715 | switch (r_type) |
3716 | { | |
3717 | case R_PARISC_DLTIND14F: | |
3718 | case R_PARISC_DLTIND14R: | |
3719 | case R_PARISC_DLTIND21L: | |
ce757d15 AM |
3720 | { |
3721 | bfd_vma off; | |
b34976b6 | 3722 | bfd_boolean do_got = 0; |
ce757d15 AM |
3723 | |
3724 | /* Relocation is to the entry for this symbol in the | |
3725 | global offset table. */ | |
3726 | if (h != NULL) | |
3727 | { | |
b34976b6 | 3728 | bfd_boolean dyn; |
ce757d15 AM |
3729 | |
3730 | off = h->elf.got.offset; | |
3731 | dyn = htab->elf.dynamic_sections_created; | |
3732 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf)) | |
3733 | { | |
3734 | /* If we aren't going to call finish_dynamic_symbol, | |
3735 | then we need to handle initialisation of the .got | |
3736 | entry and create needed relocs here. Since the | |
3737 | offset must always be a multiple of 4, we use the | |
3738 | least significant bit to record whether we have | |
3739 | initialised it already. */ | |
3740 | if ((off & 1) != 0) | |
3741 | off &= ~1; | |
3742 | else | |
3743 | { | |
3744 | h->elf.got.offset |= 1; | |
3745 | do_got = 1; | |
3746 | } | |
3747 | } | |
3748 | } | |
3749 | else | |
3750 | { | |
3751 | /* Local symbol case. */ | |
3752 | if (local_got_offsets == NULL) | |
3753 | abort (); | |
3754 | ||
3755 | off = local_got_offsets[r_symndx]; | |
3756 | ||
3757 | /* The offset must always be a multiple of 4. We use | |
3758 | the least significant bit to record whether we have | |
3759 | already generated the necessary reloc. */ | |
3760 | if ((off & 1) != 0) | |
3761 | off &= ~1; | |
3762 | else | |
3763 | { | |
3764 | local_got_offsets[r_symndx] |= 1; | |
3765 | do_got = 1; | |
3766 | } | |
3767 | } | |
68fb2e56 | 3768 | |
ce757d15 AM |
3769 | if (do_got) |
3770 | { | |
3771 | if (info->shared) | |
3772 | { | |
3773 | /* Output a dynamic relocation for this GOT entry. | |
3774 | In this case it is relative to the base of the | |
3775 | object because the symbol index is zero. */ | |
3776 | Elf_Internal_Rela outrel; | |
947216bf AM |
3777 | bfd_byte *loc; |
3778 | asection *s = htab->srelgot; | |
ce757d15 AM |
3779 | |
3780 | outrel.r_offset = (off | |
3781 | + htab->sgot->output_offset | |
3782 | + htab->sgot->output_section->vma); | |
3783 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); | |
3784 | outrel.r_addend = relocation; | |
947216bf AM |
3785 | loc = s->contents; |
3786 | loc += s->reloc_count++ * sizeof (Elf32_External_Rela); | |
ce757d15 AM |
3787 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
3788 | } | |
3789 | else | |
30667bf3 | 3790 | bfd_put_32 (output_bfd, relocation, |
83c81bfe | 3791 | htab->sgot->contents + off); |
ce757d15 | 3792 | } |
30667bf3 | 3793 | |
ce757d15 AM |
3794 | if (off >= (bfd_vma) -2) |
3795 | abort (); | |
30667bf3 | 3796 | |
ce757d15 AM |
3797 | /* Add the base of the GOT to the relocation value. */ |
3798 | relocation = (off | |
3799 | + htab->sgot->output_offset | |
3800 | + htab->sgot->output_section->vma); | |
3801 | } | |
30667bf3 | 3802 | break; |
252b5132 | 3803 | |
c46b7515 AM |
3804 | case R_PARISC_SEGREL32: |
3805 | /* If this is the first SEGREL relocation, then initialize | |
3806 | the segment base values. */ | |
83c81bfe AM |
3807 | if (htab->text_segment_base == (bfd_vma) -1) |
3808 | bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); | |
c46b7515 AM |
3809 | break; |
3810 | ||
30667bf3 AM |
3811 | case R_PARISC_PLABEL14R: |
3812 | case R_PARISC_PLABEL21L: | |
3813 | case R_PARISC_PLABEL32: | |
ebe50bae | 3814 | if (htab->elf.dynamic_sections_created) |
252b5132 | 3815 | { |
ce757d15 | 3816 | bfd_vma off; |
b34976b6 | 3817 | bfd_boolean do_plt = 0; |
ce757d15 | 3818 | |
74d1c347 AM |
3819 | /* If we have a global symbol with a PLT slot, then |
3820 | redirect this relocation to it. */ | |
3821 | if (h != NULL) | |
3822 | { | |
3823 | off = h->elf.plt.offset; | |
4dc86686 | 3824 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, &h->elf)) |
8dea1268 AM |
3825 | { |
3826 | /* In a non-shared link, adjust_dynamic_symbols | |
3827 | isn't called for symbols forced local. We | |
dc810e39 | 3828 | need to write out the plt entry here. */ |
8dea1268 AM |
3829 | if ((off & 1) != 0) |
3830 | off &= ~1; | |
3831 | else | |
3832 | { | |
8dea1268 | 3833 | h->elf.plt.offset |= 1; |
ce757d15 | 3834 | do_plt = 1; |
8dea1268 AM |
3835 | } |
3836 | } | |
74d1c347 AM |
3837 | } |
3838 | else | |
3839 | { | |
68fb2e56 AM |
3840 | bfd_vma *local_plt_offsets; |
3841 | ||
3842 | if (local_got_offsets == NULL) | |
3843 | abort (); | |
74d1c347 | 3844 | |
68fb2e56 AM |
3845 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3846 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3847 | |
3848 | /* As for the local .got entry case, we use the last | |
3849 | bit to record whether we've already initialised | |
3850 | this local .plt entry. */ | |
3851 | if ((off & 1) != 0) | |
3852 | off &= ~1; | |
ce757d15 AM |
3853 | else |
3854 | { | |
3855 | local_plt_offsets[r_symndx] |= 1; | |
3856 | do_plt = 1; | |
3857 | } | |
3858 | } | |
3859 | ||
3860 | if (do_plt) | |
3861 | { | |
3862 | if (info->shared) | |
3863 | { | |
3864 | /* Output a dynamic IPLT relocation for this | |
3865 | PLT entry. */ | |
3866 | Elf_Internal_Rela outrel; | |
947216bf AM |
3867 | bfd_byte *loc; |
3868 | asection *s = htab->srelplt; | |
ce757d15 AM |
3869 | |
3870 | outrel.r_offset = (off | |
3871 | + htab->splt->output_offset | |
3872 | + htab->splt->output_section->vma); | |
3873 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3874 | outrel.r_addend = relocation; | |
947216bf AM |
3875 | loc = s->contents; |
3876 | loc += s->reloc_count++ * sizeof (Elf32_External_Rela); | |
ce757d15 AM |
3877 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
3878 | } | |
74d1c347 AM |
3879 | else |
3880 | { | |
3881 | bfd_put_32 (output_bfd, | |
3882 | relocation, | |
83c81bfe | 3883 | htab->splt->contents + off); |
74d1c347 | 3884 | bfd_put_32 (output_bfd, |
83c81bfe AM |
3885 | elf_gp (htab->splt->output_section->owner), |
3886 | htab->splt->contents + off + 4); | |
74d1c347 AM |
3887 | } |
3888 | } | |
3889 | ||
68fb2e56 | 3890 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3891 | abort (); |
74d1c347 AM |
3892 | |
3893 | /* PLABELs contain function pointers. Relocation is to | |
3894 | the entry for the function in the .plt. The magic +2 | |
3895 | offset signals to $$dyncall that the function pointer | |
3896 | is in the .plt and thus has a gp pointer too. | |
3897 | Exception: Undefined PLABELs should have a value of | |
3898 | zero. */ | |
3899 | if (h == NULL | |
3900 | || (h->elf.root.type != bfd_link_hash_undefweak | |
3901 | && h->elf.root.type != bfd_link_hash_undefined)) | |
3902 | { | |
3903 | relocation = (off | |
83c81bfe AM |
3904 | + htab->splt->output_offset |
3905 | + htab->splt->output_section->vma | |
74d1c347 AM |
3906 | + 2); |
3907 | } | |
3908 | plabel = 1; | |
30667bf3 AM |
3909 | } |
3910 | /* Fall through and possibly emit a dynamic relocation. */ | |
3911 | ||
3912 | case R_PARISC_DIR17F: | |
3913 | case R_PARISC_DIR17R: | |
47d89dba | 3914 | case R_PARISC_DIR14F: |
30667bf3 AM |
3915 | case R_PARISC_DIR14R: |
3916 | case R_PARISC_DIR21L: | |
3917 | case R_PARISC_DPREL14F: | |
3918 | case R_PARISC_DPREL14R: | |
3919 | case R_PARISC_DPREL21L: | |
3920 | case R_PARISC_DIR32: | |
ec338859 AM |
3921 | /* r_symndx will be zero only for relocs against symbols |
3922 | from removed linkonce sections, or sections discarded by | |
3923 | a linker script. */ | |
3924 | if (r_symndx == 0 | |
3925 | || (input_section->flags & SEC_ALLOC) == 0) | |
3926 | break; | |
3927 | ||
30667bf3 | 3928 | /* The reloc types handled here and this conditional |
56882138 | 3929 | expression must match the code in ..check_relocs and |
ec338859 | 3930 | allocate_dynrelocs. ie. We need exactly the same condition |
56882138 AM |
3931 | as in ..check_relocs, with some extra conditions (dynindx |
3932 | test in this case) to cater for relocs removed by | |
ec338859 | 3933 | allocate_dynrelocs. If you squint, the non-shared test |
56882138 AM |
3934 | here does indeed match the one in ..check_relocs, the |
3935 | difference being that here we test DEF_DYNAMIC as well as | |
3936 | !DEF_REGULAR. All common syms end up with !DEF_REGULAR, | |
3937 | which is why we can't use just that test here. | |
3938 | Conversely, DEF_DYNAMIC can't be used in check_relocs as | |
3939 | there all files have not been loaded. */ | |
446f2863 | 3940 | if ((info->shared |
446f2863 AM |
3941 | && (IS_ABSOLUTE_RELOC (r_type) |
3942 | || (h != NULL | |
3943 | && h->elf.dynindx != -1 | |
3944 | && (!info->symbolic | |
3945 | || (h->elf.elf_link_hash_flags | |
3946 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
3947 | || (!info->shared | |
446f2863 AM |
3948 | && h != NULL |
3949 | && h->elf.dynindx != -1 | |
3950 | && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
56882138 AM |
3951 | && (((h->elf.elf_link_hash_flags |
3952 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
3953 | && (h->elf.elf_link_hash_flags | |
3954 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
446f2863 AM |
3955 | || h->elf.root.type == bfd_link_hash_undefweak |
3956 | || h->elf.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
3957 | { |
3958 | Elf_Internal_Rela outrel; | |
b34976b6 | 3959 | bfd_boolean skip; |
98ceb8ce | 3960 | asection *sreloc; |
947216bf | 3961 | bfd_byte *loc; |
252b5132 | 3962 | |
30667bf3 AM |
3963 | /* When generating a shared object, these relocations |
3964 | are copied into the output file to be resolved at run | |
3965 | time. */ | |
252b5132 | 3966 | |
30667bf3 | 3967 | outrel.r_addend = rel->r_addend; |
c629eae0 JJ |
3968 | outrel.r_offset = |
3969 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
3970 | rel->r_offset); | |
0bb2d96a JJ |
3971 | skip = (outrel.r_offset == (bfd_vma) -1 |
3972 | || outrel.r_offset == (bfd_vma) -2); | |
30667bf3 AM |
3973 | outrel.r_offset += (input_section->output_offset |
3974 | + input_section->output_section->vma); | |
3975 | ||
3976 | if (skip) | |
252b5132 | 3977 | { |
30667bf3 | 3978 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 3979 | } |
74d1c347 AM |
3980 | else if (h != NULL |
3981 | && h->elf.dynindx != -1 | |
3982 | && (plabel | |
446f2863 AM |
3983 | || !IS_ABSOLUTE_RELOC (r_type) |
3984 | || !info->shared | |
74d1c347 | 3985 | || !info->symbolic |
30667bf3 AM |
3986 | || (h->elf.elf_link_hash_flags |
3987 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
252b5132 | 3988 | { |
30667bf3 AM |
3989 | outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type); |
3990 | } | |
3991 | else /* It's a local symbol, or one marked to become local. */ | |
3992 | { | |
3993 | int indx = 0; | |
edd21aca | 3994 | |
30667bf3 AM |
3995 | /* Add the absolute offset of the symbol. */ |
3996 | outrel.r_addend += relocation; | |
edd21aca | 3997 | |
74d1c347 AM |
3998 | /* Global plabels need to be processed by the |
3999 | dynamic linker so that functions have at most one | |
4000 | fptr. For this reason, we need to differentiate | |
4001 | between global and local plabels, which we do by | |
4002 | providing the function symbol for a global plabel | |
4003 | reloc, and no symbol for local plabels. */ | |
4004 | if (! plabel | |
4005 | && sym_sec != NULL | |
30667bf3 AM |
4006 | && sym_sec->output_section != NULL |
4007 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 4008 | { |
30667bf3 AM |
4009 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
4010 | /* We are turning this relocation into one | |
4011 | against a section symbol, so subtract out the | |
4012 | output section's address but not the offset | |
4013 | of the input section in the output section. */ | |
4014 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 4015 | } |
252b5132 | 4016 | |
30667bf3 AM |
4017 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
4018 | } | |
68fb2e56 AM |
4019 | #if 0 |
4020 | /* EH info can cause unaligned DIR32 relocs. | |
4021 | Tweak the reloc type for the dynamic linker. */ | |
4022 | if (r_type == R_PARISC_DIR32 && (outrel.r_offset & 3) != 0) | |
4023 | outrel.r_info = ELF32_R_INFO (ELF32_R_SYM (outrel.r_info), | |
4024 | R_PARISC_DIR32U); | |
4025 | #endif | |
98ceb8ce AM |
4026 | sreloc = elf_section_data (input_section)->sreloc; |
4027 | if (sreloc == NULL) | |
4028 | abort (); | |
4029 | ||
947216bf AM |
4030 | loc = sreloc->contents; |
4031 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
98ceb8ce | 4032 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
30667bf3 AM |
4033 | } |
4034 | break; | |
edd21aca | 4035 | |
30667bf3 AM |
4036 | default: |
4037 | break; | |
4038 | } | |
252b5132 | 4039 | |
30667bf3 | 4040 | r = final_link_relocate (input_section, contents, rel, relocation, |
83c81bfe | 4041 | htab, sym_sec, h); |
252b5132 | 4042 | |
30667bf3 AM |
4043 | if (r == bfd_reloc_ok) |
4044 | continue; | |
252b5132 | 4045 | |
30667bf3 AM |
4046 | if (h != NULL) |
4047 | sym_name = h->elf.root.root.string; | |
4048 | else | |
4049 | { | |
4050 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
4051 | symtab_hdr->sh_link, | |
4052 | sym->st_name); | |
4053 | if (sym_name == NULL) | |
b34976b6 | 4054 | return FALSE; |
30667bf3 AM |
4055 | if (*sym_name == '\0') |
4056 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
4057 | } | |
edd21aca | 4058 | |
30667bf3 | 4059 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 4060 | |
30667bf3 AM |
4061 | if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported) |
4062 | { | |
f09ebc7d AM |
4063 | if (r == bfd_reloc_notsupported || !warned_undef) |
4064 | { | |
4065 | (*_bfd_error_handler) | |
4066 | (_("%s(%s+0x%lx): cannot handle %s for %s"), | |
4067 | bfd_archive_filename (input_bfd), | |
4068 | input_section->name, | |
4069 | (long) rel->r_offset, | |
4070 | howto->name, | |
4071 | sym_name); | |
4072 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 4073 | return FALSE; |
f09ebc7d | 4074 | } |
30667bf3 AM |
4075 | } |
4076 | else | |
4077 | { | |
4078 | if (!((*info->callbacks->reloc_overflow) | |
4079 | (info, sym_name, howto->name, (bfd_vma) 0, | |
4080 | input_bfd, input_section, rel->r_offset))) | |
b34976b6 | 4081 | return FALSE; |
30667bf3 AM |
4082 | } |
4083 | } | |
edd21aca | 4084 | |
b34976b6 | 4085 | return TRUE; |
30667bf3 | 4086 | } |
252b5132 | 4087 | |
30667bf3 AM |
4088 | /* Finish up dynamic symbol handling. We set the contents of various |
4089 | dynamic sections here. */ | |
252b5132 | 4090 | |
b34976b6 | 4091 | static bfd_boolean |
30667bf3 AM |
4092 | elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym) |
4093 | bfd *output_bfd; | |
4094 | struct bfd_link_info *info; | |
4095 | struct elf_link_hash_entry *h; | |
4096 | Elf_Internal_Sym *sym; | |
4097 | { | |
83c81bfe | 4098 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 4099 | |
83c81bfe | 4100 | htab = hppa_link_hash_table (info); |
30667bf3 | 4101 | |
30667bf3 AM |
4102 | if (h->plt.offset != (bfd_vma) -1) |
4103 | { | |
4104 | bfd_vma value; | |
30667bf3 | 4105 | |
8dea1268 AM |
4106 | if (h->plt.offset & 1) |
4107 | abort (); | |
4108 | ||
30667bf3 AM |
4109 | /* This symbol has an entry in the procedure linkage table. Set |
4110 | it up. | |
4111 | ||
4112 | The format of a plt entry is | |
74d1c347 AM |
4113 | <funcaddr> |
4114 | <__gp> | |
47d89dba | 4115 | */ |
30667bf3 AM |
4116 | value = 0; |
4117 | if (h->root.type == bfd_link_hash_defined | |
4118 | || h->root.type == bfd_link_hash_defweak) | |
4119 | { | |
4120 | value = h->root.u.def.value; | |
4121 | if (h->root.u.def.section->output_section != NULL) | |
4122 | value += (h->root.u.def.section->output_offset | |
4123 | + h->root.u.def.section->output_section->vma); | |
252b5132 | 4124 | } |
edd21aca | 4125 | |
74d1c347 | 4126 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call) |
30667bf3 | 4127 | { |
47d89dba | 4128 | Elf_Internal_Rela rel; |
947216bf | 4129 | bfd_byte *loc; |
47d89dba | 4130 | |
30667bf3 AM |
4131 | /* Create a dynamic IPLT relocation for this entry. */ |
4132 | rel.r_offset = (h->plt.offset | |
83c81bfe AM |
4133 | + htab->splt->output_offset |
4134 | + htab->splt->output_section->vma); | |
ce757d15 | 4135 | if (h->dynindx != -1) |
74d1c347 AM |
4136 | { |
4137 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT); | |
4138 | rel.r_addend = 0; | |
4139 | } | |
4140 | else | |
4141 | { | |
4142 | /* This symbol has been marked to become local, and is | |
4143 | used by a plabel so must be kept in the .plt. */ | |
4144 | rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
4145 | rel.r_addend = value; | |
4146 | } | |
30667bf3 | 4147 | |
947216bf AM |
4148 | loc = htab->srelplt->contents; |
4149 | loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela); | |
83c81bfe | 4150 | bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, |
3ac8354b | 4151 | &rel, loc); |
30667bf3 | 4152 | } |
ce757d15 | 4153 | else |
47d89dba | 4154 | { |
ce757d15 AM |
4155 | bfd_put_32 (htab->splt->owner, |
4156 | value, | |
4157 | htab->splt->contents + h->plt.offset); | |
4158 | bfd_put_32 (htab->splt->owner, | |
4159 | elf_gp (htab->splt->output_section->owner), | |
4160 | htab->splt->contents + h->plt.offset + 4); | |
47d89dba AM |
4161 | } |
4162 | ||
30667bf3 AM |
4163 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
4164 | { | |
4165 | /* Mark the symbol as undefined, rather than as defined in | |
4166 | the .plt section. Leave the value alone. */ | |
4167 | sym->st_shndx = SHN_UNDEF; | |
4168 | } | |
4169 | } | |
edd21aca | 4170 | |
30667bf3 AM |
4171 | if (h->got.offset != (bfd_vma) -1) |
4172 | { | |
4173 | Elf_Internal_Rela rel; | |
947216bf | 4174 | bfd_byte *loc; |
30667bf3 AM |
4175 | |
4176 | /* This symbol has an entry in the global offset table. Set it | |
4177 | up. */ | |
4178 | ||
4179 | rel.r_offset = ((h->got.offset &~ (bfd_vma) 1) | |
83c81bfe AM |
4180 | + htab->sgot->output_offset |
4181 | + htab->sgot->output_section->vma); | |
30667bf3 | 4182 | |
4dc86686 AM |
4183 | /* If this is a -Bsymbolic link and the symbol is defined |
4184 | locally or was forced to be local because of a version file, | |
4185 | we just want to emit a RELATIVE reloc. The entry in the | |
4186 | global offset table will already have been initialized in the | |
4187 | relocate_section function. */ | |
4188 | if (info->shared | |
4189 | && (info->symbolic || h->dynindx == -1) | |
4190 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
30667bf3 | 4191 | { |
74d1c347 | 4192 | rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
4193 | rel.r_addend = (h->root.u.def.value |
4194 | + h->root.u.def.section->output_offset | |
4195 | + h->root.u.def.section->output_section->vma); | |
4196 | } | |
4197 | else | |
4198 | { | |
49e9d0d3 AM |
4199 | if ((h->got.offset & 1) != 0) |
4200 | abort (); | |
30667bf3 | 4201 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
83c81bfe | 4202 | htab->sgot->contents + h->got.offset); |
30667bf3 AM |
4203 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32); |
4204 | rel.r_addend = 0; | |
4205 | } | |
edd21aca | 4206 | |
947216bf AM |
4207 | loc = htab->srelgot->contents; |
4208 | loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
3ac8354b | 4209 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); |
30667bf3 | 4210 | } |
edd21aca | 4211 | |
30667bf3 AM |
4212 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
4213 | { | |
4214 | asection *s; | |
4215 | Elf_Internal_Rela rel; | |
947216bf | 4216 | bfd_byte *loc; |
30667bf3 AM |
4217 | |
4218 | /* This symbol needs a copy reloc. Set it up. */ | |
4219 | ||
49e9d0d3 AM |
4220 | if (! (h->dynindx != -1 |
4221 | && (h->root.type == bfd_link_hash_defined | |
4222 | || h->root.type == bfd_link_hash_defweak))) | |
4223 | abort (); | |
30667bf3 | 4224 | |
83c81bfe | 4225 | s = htab->srelbss; |
30667bf3 AM |
4226 | |
4227 | rel.r_offset = (h->root.u.def.value | |
4228 | + h->root.u.def.section->output_offset | |
4229 | + h->root.u.def.section->output_section->vma); | |
4230 | rel.r_addend = 0; | |
4231 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY); | |
947216bf | 4232 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
3ac8354b | 4233 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); |
30667bf3 AM |
4234 | } |
4235 | ||
4236 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
4237 | if (h->root.root.string[0] == '_' | |
4238 | && (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4239 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)) | |
4240 | { | |
4241 | sym->st_shndx = SHN_ABS; | |
4242 | } | |
4243 | ||
b34976b6 | 4244 | return TRUE; |
30667bf3 AM |
4245 | } |
4246 | ||
98ceb8ce AM |
4247 | /* Used to decide how to sort relocs in an optimal manner for the |
4248 | dynamic linker, before writing them out. */ | |
4249 | ||
4250 | static enum elf_reloc_type_class | |
4251 | elf32_hppa_reloc_type_class (rela) | |
4252 | const Elf_Internal_Rela *rela; | |
4253 | { | |
4254 | if (ELF32_R_SYM (rela->r_info) == 0) | |
4255 | return reloc_class_relative; | |
4256 | ||
4257 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4258 | { | |
4259 | case R_PARISC_IPLT: | |
4260 | return reloc_class_plt; | |
4261 | case R_PARISC_COPY: | |
4262 | return reloc_class_copy; | |
4263 | default: | |
4264 | return reloc_class_normal; | |
4265 | } | |
4266 | } | |
4267 | ||
30667bf3 AM |
4268 | /* Finish up the dynamic sections. */ |
4269 | ||
b34976b6 | 4270 | static bfd_boolean |
30667bf3 AM |
4271 | elf32_hppa_finish_dynamic_sections (output_bfd, info) |
4272 | bfd *output_bfd; | |
4273 | struct bfd_link_info *info; | |
4274 | { | |
4275 | bfd *dynobj; | |
83c81bfe | 4276 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
4277 | asection *sdyn; |
4278 | ||
83c81bfe | 4279 | htab = hppa_link_hash_table (info); |
ebe50bae | 4280 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
4281 | |
4282 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4283 | ||
ebe50bae | 4284 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
4285 | { |
4286 | Elf32_External_Dyn *dyncon, *dynconend; | |
4287 | ||
49e9d0d3 AM |
4288 | if (sdyn == NULL) |
4289 | abort (); | |
30667bf3 AM |
4290 | |
4291 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
4292 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4293 | for (; dyncon < dynconend; dyncon++) | |
edd21aca | 4294 | { |
30667bf3 AM |
4295 | Elf_Internal_Dyn dyn; |
4296 | asection *s; | |
4297 | ||
4298 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4299 | ||
4300 | switch (dyn.d_tag) | |
4301 | { | |
4302 | default: | |
3ac8354b | 4303 | continue; |
30667bf3 AM |
4304 | |
4305 | case DT_PLTGOT: | |
4306 | /* Use PLTGOT to set the GOT register. */ | |
4307 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
30667bf3 AM |
4308 | break; |
4309 | ||
4310 | case DT_JMPREL: | |
83c81bfe | 4311 | s = htab->srelplt; |
30667bf3 | 4312 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
30667bf3 AM |
4313 | break; |
4314 | ||
4315 | case DT_PLTRELSZ: | |
83c81bfe | 4316 | s = htab->srelplt; |
30667bf3 AM |
4317 | if (s->_cooked_size != 0) |
4318 | dyn.d_un.d_val = s->_cooked_size; | |
4319 | else | |
4320 | dyn.d_un.d_val = s->_raw_size; | |
30667bf3 | 4321 | break; |
4e12ff7f AM |
4322 | |
4323 | case DT_RELASZ: | |
4324 | /* Don't count procedure linkage table relocs in the | |
4325 | overall reloc count. */ | |
4326 | if (htab->srelplt != NULL) | |
4327 | { | |
4328 | s = htab->srelplt->output_section; | |
4329 | if (s->_cooked_size != 0) | |
4330 | dyn.d_un.d_val -= s->_cooked_size; | |
4331 | else | |
4332 | dyn.d_un.d_val -= s->_raw_size; | |
4333 | } | |
4334 | break; | |
30667bf3 | 4335 | } |
3ac8354b AM |
4336 | |
4337 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
edd21aca | 4338 | } |
252b5132 | 4339 | } |
edd21aca | 4340 | |
83c81bfe | 4341 | if (htab->sgot != NULL && htab->sgot->_raw_size != 0) |
30667bf3 | 4342 | { |
74d1c347 AM |
4343 | /* Fill in the first entry in the global offset table. |
4344 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 AM |
4345 | bfd_put_32 (output_bfd, |
4346 | (sdyn != NULL | |
4347 | ? sdyn->output_section->vma + sdyn->output_offset | |
4348 | : (bfd_vma) 0), | |
83c81bfe | 4349 | htab->sgot->contents); |
30667bf3 | 4350 | |
74d1c347 | 4351 | /* The second entry is reserved for use by the dynamic linker. */ |
83c81bfe | 4352 | memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4353 | |
30667bf3 | 4354 | /* Set .got entry size. */ |
83c81bfe | 4355 | elf_section_data (htab->sgot->output_section) |
74d1c347 | 4356 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; |
30667bf3 AM |
4357 | } |
4358 | ||
83c81bfe | 4359 | if (htab->splt != NULL && htab->splt->_raw_size != 0) |
47d89dba AM |
4360 | { |
4361 | /* Set plt entry size. */ | |
83c81bfe | 4362 | elf_section_data (htab->splt->output_section) |
47d89dba AM |
4363 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; |
4364 | ||
83c81bfe | 4365 | if (htab->need_plt_stub) |
47d89dba AM |
4366 | { |
4367 | /* Set up the .plt stub. */ | |
83c81bfe AM |
4368 | memcpy (htab->splt->contents |
4369 | + htab->splt->_raw_size - sizeof (plt_stub), | |
47d89dba AM |
4370 | plt_stub, sizeof (plt_stub)); |
4371 | ||
83c81bfe AM |
4372 | if ((htab->splt->output_offset |
4373 | + htab->splt->output_section->vma | |
4374 | + htab->splt->_raw_size) | |
4375 | != (htab->sgot->output_offset | |
4376 | + htab->sgot->output_section->vma)) | |
47d89dba AM |
4377 | { |
4378 | (*_bfd_error_handler) | |
4379 | (_(".got section not immediately after .plt section")); | |
b34976b6 | 4380 | return FALSE; |
47d89dba AM |
4381 | } |
4382 | } | |
4383 | } | |
30667bf3 | 4384 | |
b34976b6 | 4385 | return TRUE; |
30667bf3 | 4386 | } |
252b5132 | 4387 | |
d952f17a AM |
4388 | /* Tweak the OSABI field of the elf header. */ |
4389 | ||
4390 | static void | |
4391 | elf32_hppa_post_process_headers (abfd, link_info) | |
4392 | bfd *abfd; | |
4393 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
4394 | { | |
4395 | Elf_Internal_Ehdr * i_ehdrp; | |
4396 | ||
4397 | i_ehdrp = elf_elfheader (abfd); | |
4398 | ||
4399 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
4400 | { | |
4401 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
4402 | } | |
4403 | else | |
4404 | { | |
4405 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; | |
4406 | } | |
4407 | } | |
4408 | ||
30667bf3 AM |
4409 | /* Called when writing out an object file to decide the type of a |
4410 | symbol. */ | |
4411 | static int | |
4412 | elf32_hppa_elf_get_symbol_type (elf_sym, type) | |
4413 | Elf_Internal_Sym *elf_sym; | |
4414 | int type; | |
4415 | { | |
4416 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4417 | return STT_PARISC_MILLI; | |
4418 | else | |
4419 | return type; | |
252b5132 RH |
4420 | } |
4421 | ||
4422 | /* Misc BFD support code. */ | |
30667bf3 AM |
4423 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4424 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4425 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4426 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4427 | |
252b5132 | 4428 | /* Stuff for the BFD linker. */ |
c46b7515 | 4429 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 | 4430 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
e2d34d7d | 4431 | #define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free |
30667bf3 AM |
4432 | #define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook |
4433 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol | |
ebe50bae | 4434 | #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol |
30667bf3 AM |
4435 | #define elf_backend_check_relocs elf32_hppa_check_relocs |
4436 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4437 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4438 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4439 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4440 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4441 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4442 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4443 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4444 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
4445 | #define elf_backend_object_p elf32_hppa_object_p | |
4446 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d952f17a | 4447 | #define elf_backend_post_process_headers elf32_hppa_post_process_headers |
30667bf3 | 4448 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
98ceb8ce | 4449 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
30667bf3 AM |
4450 | |
4451 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4452 | #define elf_backend_can_refcount 1 |
30667bf3 AM |
4453 | #define elf_backend_plt_alignment 2 |
4454 | #define elf_backend_want_got_plt 0 | |
4455 | #define elf_backend_plt_readonly 0 | |
4456 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4457 | #define elf_backend_got_header_size 8 |
f0fe0e16 | 4458 | #define elf_backend_rela_normal 1 |
252b5132 RH |
4459 | |
4460 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4461 | #define TARGET_BIG_NAME "elf32-hppa" | |
4462 | #define ELF_ARCH bfd_arch_hppa | |
4463 | #define ELF_MACHINE_CODE EM_PARISC | |
4464 | #define ELF_MAXPAGESIZE 0x1000 | |
4465 | ||
4466 | #include "elf32-target.h" | |
d952f17a AM |
4467 | |
4468 | #undef TARGET_BIG_SYM | |
4469 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec | |
4470 | #undef TARGET_BIG_NAME | |
4471 | #define TARGET_BIG_NAME "elf32-hppa-linux" | |
4472 | ||
4473 | #define INCLUDED_TARGET_FILE 1 | |
4474 | #include "elf32-target.h" |