Commit | Line | Data |
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252b5132 | 1 | /* BFD back-end for HP PA-RISC ELF files. |
e5094212 AM |
2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001, |
3 | 2002 Free Software Foundation, Inc. | |
252b5132 | 4 | |
30667bf3 | 5 | Original code by |
252b5132 RH |
6 | Center for Software Science |
7 | Department of Computer Science | |
8 | University of Utah | |
30667bf3 | 9 | Largely rewritten by Alan Modra <alan@linuxcare.com.au> |
252b5132 RH |
10 | |
11 | This file is part of BFD, the Binary File Descriptor library. | |
12 | ||
13 | This program is free software; you can redistribute it and/or modify | |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; either version 2 of the License, or | |
16 | (at your option) any later version. | |
17 | ||
18 | This program is distributed in the hope that it will be useful, | |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
22 | ||
23 | You should have received a copy of the GNU General Public License | |
24 | along with this program; if not, write to the Free Software | |
25 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
26 | ||
27 | #include "bfd.h" | |
28 | #include "sysdep.h" | |
252b5132 RH |
29 | #include "libbfd.h" |
30 | #include "elf-bfd.h" | |
9e103c9c JL |
31 | #include "elf/hppa.h" |
32 | #include "libhppa.h" | |
33 | #include "elf32-hppa.h" | |
34 | #define ARCH_SIZE 32 | |
edd21aca | 35 | #include "elf32-hppa.h" |
189c6563 | 36 | #include "elf-hppa.h" |
9e103c9c | 37 | |
74d1c347 AM |
38 | /* In order to gain some understanding of code in this file without |
39 | knowing all the intricate details of the linker, note the | |
40 | following: | |
41 | ||
42 | Functions named elf32_hppa_* are called by external routines, other | |
43 | functions are only called locally. elf32_hppa_* functions appear | |
44 | in this file more or less in the order in which they are called | |
45 | from external routines. eg. elf32_hppa_check_relocs is called | |
46 | early in the link process, elf32_hppa_finish_dynamic_sections is | |
47 | one of the last functions. */ | |
48 | ||
edd21aca | 49 | /* We use two hash tables to hold information for linking PA ELF objects. |
252b5132 RH |
50 | |
51 | The first is the elf32_hppa_link_hash_table which is derived | |
52 | from the standard ELF linker hash table. We use this as a place to | |
53 | attach other hash tables and static information. | |
54 | ||
55 | The second is the stub hash table which is derived from the | |
56 | base BFD hash table. The stub hash table holds the information | |
30667bf3 AM |
57 | necessary to build the linker stubs during a link. |
58 | ||
59 | There are a number of different stubs generated by the linker. | |
60 | ||
61 | Long branch stub: | |
62 | : ldil LR'X,%r1 | |
63 | : be,n RR'X(%sr4,%r1) | |
64 | ||
65 | PIC long branch stub: | |
66 | : b,l .+8,%r1 | |
3ee1d854 AM |
67 | : addil LR'X - ($PIC_pcrel$0 - 4),%r1 |
68 | : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1) | |
30667bf3 AM |
69 | |
70 | Import stub to call shared library routine from normal object file | |
71 | (single sub-space version) | |
3ee1d854 AM |
72 | : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point |
73 | : ldw RR'lt_ptr+ltoff(%r1),%r21 | |
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 | ||
313 | static boolean hppa_build_one_stub | |
314 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
315 | ||
316 | static boolean hppa_size_one_stub | |
317 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
318 | ||
30667bf3 AM |
319 | /* BFD and elf backend functions. */ |
320 | static boolean elf32_hppa_object_p PARAMS ((bfd *)); | |
252b5132 | 321 | |
edd21aca AM |
322 | static boolean elf32_hppa_add_symbol_hook |
323 | PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, | |
324 | const char **, flagword *, asection **, bfd_vma *)); | |
252b5132 | 325 | |
30667bf3 AM |
326 | static boolean elf32_hppa_create_dynamic_sections |
327 | PARAMS ((bfd *, struct bfd_link_info *)); | |
252b5132 | 328 | |
ebe50bae AM |
329 | static void elf32_hppa_copy_indirect_symbol |
330 | PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *)); | |
331 | ||
30667bf3 AM |
332 | static boolean elf32_hppa_check_relocs |
333 | PARAMS ((bfd *, struct bfd_link_info *, | |
334 | asection *, const Elf_Internal_Rela *)); | |
335 | ||
336 | static asection *elf32_hppa_gc_mark_hook | |
337 | PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *, | |
338 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
339 | ||
340 | static boolean elf32_hppa_gc_sweep_hook | |
341 | PARAMS ((bfd *, struct bfd_link_info *, | |
342 | asection *, const Elf_Internal_Rela *)); | |
343 | ||
74d1c347 | 344 | static void elf32_hppa_hide_symbol |
e5094212 | 345 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, boolean)); |
74d1c347 | 346 | |
30667bf3 AM |
347 | static boolean elf32_hppa_adjust_dynamic_symbol |
348 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
349 | ||
a8d02d66 AM |
350 | static boolean mark_PIC_calls |
351 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
352 | ||
e5ee5df1 | 353 | static boolean allocate_plt_static |
30667bf3 AM |
354 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
355 | ||
98ceb8ce AM |
356 | static boolean allocate_dynrelocs |
357 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
358 | ||
359 | static boolean readonly_dynrelocs | |
30667bf3 | 360 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
30667bf3 | 361 | |
d5c73c2f AM |
362 | static boolean clobber_millicode_symbols |
363 | PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *)); | |
364 | ||
30667bf3 AM |
365 | static boolean elf32_hppa_size_dynamic_sections |
366 | PARAMS ((bfd *, struct bfd_link_info *)); | |
367 | ||
b4655ea9 AM |
368 | static void group_sections |
369 | PARAMS ((struct elf32_hppa_link_hash_table *, bfd_size_type, boolean)); | |
370 | ||
371 | static int get_local_syms | |
372 | PARAMS ((bfd *, bfd *, struct bfd_link_info *)); | |
373 | ||
c46b7515 AM |
374 | static boolean elf32_hppa_final_link |
375 | PARAMS ((bfd *, struct bfd_link_info *)); | |
376 | ||
377 | static void hppa_record_segment_addr | |
378 | PARAMS ((bfd *, asection *, PTR)); | |
379 | ||
30667bf3 AM |
380 | static bfd_reloc_status_type final_link_relocate |
381 | PARAMS ((asection *, bfd_byte *, const Elf_Internal_Rela *, | |
25f72752 | 382 | bfd_vma, struct elf32_hppa_link_hash_table *, asection *, |
30667bf3 AM |
383 | struct elf32_hppa_link_hash_entry *)); |
384 | ||
385 | static boolean elf32_hppa_relocate_section | |
386 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, | |
387 | bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
388 | ||
389 | static boolean elf32_hppa_finish_dynamic_symbol | |
390 | PARAMS ((bfd *, struct bfd_link_info *, | |
391 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
392 | ||
98ceb8ce AM |
393 | static enum elf_reloc_type_class elf32_hppa_reloc_type_class |
394 | PARAMS ((const Elf_Internal_Rela *)); | |
395 | ||
30667bf3 AM |
396 | static boolean elf32_hppa_finish_dynamic_sections |
397 | PARAMS ((bfd *, struct bfd_link_info *)); | |
398 | ||
d952f17a AM |
399 | static void elf32_hppa_post_process_headers |
400 | PARAMS ((bfd *, struct bfd_link_info *)); | |
401 | ||
30667bf3 AM |
402 | static int elf32_hppa_elf_get_symbol_type |
403 | PARAMS ((Elf_Internal_Sym *, int)); | |
252b5132 | 404 | |
252b5132 RH |
405 | /* Assorted hash table functions. */ |
406 | ||
407 | /* Initialize an entry in the stub hash table. */ | |
408 | ||
409 | static struct bfd_hash_entry * | |
30667bf3 | 410 | stub_hash_newfunc (entry, table, string) |
252b5132 RH |
411 | struct bfd_hash_entry *entry; |
412 | struct bfd_hash_table *table; | |
413 | const char *string; | |
414 | { | |
252b5132 RH |
415 | /* Allocate the structure if it has not already been allocated by a |
416 | subclass. */ | |
ebe50bae | 417 | if (entry == NULL) |
30667bf3 | 418 | { |
ebe50bae AM |
419 | entry = bfd_hash_allocate (table, |
420 | sizeof (struct elf32_hppa_stub_hash_entry)); | |
421 | if (entry == NULL) | |
422 | return entry; | |
30667bf3 | 423 | } |
252b5132 RH |
424 | |
425 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
426 | entry = bfd_hash_newfunc (entry, table, string); |
427 | if (entry != NULL) | |
252b5132 | 428 | { |
ebe50bae AM |
429 | struct elf32_hppa_stub_hash_entry *eh; |
430 | ||
252b5132 | 431 | /* Initialize the local fields. */ |
ebe50bae AM |
432 | eh = (struct elf32_hppa_stub_hash_entry *) entry; |
433 | eh->stub_sec = NULL; | |
434 | eh->stub_offset = 0; | |
435 | eh->target_value = 0; | |
436 | eh->target_section = NULL; | |
437 | eh->stub_type = hppa_stub_long_branch; | |
438 | eh->h = NULL; | |
439 | eh->id_sec = NULL; | |
30667bf3 AM |
440 | } |
441 | ||
ebe50bae | 442 | return entry; |
30667bf3 AM |
443 | } |
444 | ||
30667bf3 AM |
445 | /* Initialize an entry in the link hash table. */ |
446 | ||
447 | static struct bfd_hash_entry * | |
448 | hppa_link_hash_newfunc (entry, table, string) | |
449 | struct bfd_hash_entry *entry; | |
450 | struct bfd_hash_table *table; | |
451 | const char *string; | |
452 | { | |
30667bf3 AM |
453 | /* Allocate the structure if it has not already been allocated by a |
454 | subclass. */ | |
ebe50bae | 455 | if (entry == NULL) |
30667bf3 | 456 | { |
ebe50bae AM |
457 | entry = bfd_hash_allocate (table, |
458 | sizeof (struct elf32_hppa_link_hash_entry)); | |
459 | if (entry == NULL) | |
460 | return entry; | |
30667bf3 AM |
461 | } |
462 | ||
463 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
464 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
465 | if (entry != NULL) | |
30667bf3 | 466 | { |
ebe50bae AM |
467 | struct elf32_hppa_link_hash_entry *eh; |
468 | ||
30667bf3 | 469 | /* Initialize the local fields. */ |
ebe50bae AM |
470 | eh = (struct elf32_hppa_link_hash_entry *) entry; |
471 | eh->stub_cache = NULL; | |
472 | eh->dyn_relocs = NULL; | |
ebe50bae AM |
473 | eh->pic_call = 0; |
474 | eh->plabel = 0; | |
252b5132 RH |
475 | } |
476 | ||
ebe50bae | 477 | return entry; |
252b5132 RH |
478 | } |
479 | ||
252b5132 RH |
480 | /* Create the derived linker hash table. The PA ELF port uses the derived |
481 | hash table to keep information specific to the PA ELF linker (without | |
482 | using static variables). */ | |
483 | ||
484 | static struct bfd_link_hash_table * | |
485 | elf32_hppa_link_hash_table_create (abfd) | |
486 | bfd *abfd; | |
487 | { | |
488 | struct elf32_hppa_link_hash_table *ret; | |
dc810e39 | 489 | bfd_size_type amt = sizeof (*ret); |
252b5132 | 490 | |
e2d34d7d | 491 | ret = (struct elf32_hppa_link_hash_table *) bfd_malloc (amt); |
252b5132 RH |
492 | if (ret == NULL) |
493 | return NULL; | |
edd21aca | 494 | |
ebe50bae | 495 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, hppa_link_hash_newfunc)) |
252b5132 | 496 | { |
e2d34d7d | 497 | free (ret); |
252b5132 RH |
498 | return NULL; |
499 | } | |
edd21aca AM |
500 | |
501 | /* Init the stub hash table too. */ | |
30667bf3 | 502 | if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc)) |
edd21aca AM |
503 | return NULL; |
504 | ||
30667bf3 | 505 | ret->stub_bfd = NULL; |
30667bf3 AM |
506 | ret->add_stub_section = NULL; |
507 | ret->layout_sections_again = NULL; | |
25f72752 | 508 | ret->stub_group = NULL; |
30667bf3 AM |
509 | ret->sgot = NULL; |
510 | ret->srelgot = NULL; | |
511 | ret->splt = NULL; | |
512 | ret->srelplt = NULL; | |
513 | ret->sdynbss = NULL; | |
514 | ret->srelbss = NULL; | |
c46b7515 AM |
515 | ret->text_segment_base = (bfd_vma) -1; |
516 | ret->data_segment_base = (bfd_vma) -1; | |
47d89dba AM |
517 | ret->multi_subspace = 0; |
518 | ret->has_12bit_branch = 0; | |
519 | ret->has_17bit_branch = 0; | |
067fa4a6 | 520 | ret->has_22bit_branch = 0; |
47d89dba | 521 | ret->need_plt_stub = 0; |
ec338859 | 522 | ret->sym_sec.abfd = NULL; |
252b5132 | 523 | |
ebe50bae | 524 | return &ret->elf.root; |
252b5132 RH |
525 | } |
526 | ||
e2d34d7d DJ |
527 | /* Free the derived linker hash table. */ |
528 | ||
529 | static void | |
530 | elf32_hppa_link_hash_table_free (hash) | |
531 | struct bfd_link_hash_table *hash; | |
532 | { | |
533 | struct elf32_hppa_link_hash_table *ret | |
534 | = (struct elf32_hppa_link_hash_table *) hash; | |
535 | ||
536 | bfd_hash_table_free (&ret->stub_hash_table); | |
537 | _bfd_generic_link_hash_table_free (hash); | |
538 | } | |
539 | ||
30667bf3 AM |
540 | /* Build a name for an entry in the stub hash table. */ |
541 | ||
edd21aca | 542 | static char * |
30667bf3 | 543 | hppa_stub_name (input_section, sym_sec, hash, rel) |
edd21aca | 544 | const asection *input_section; |
30667bf3 AM |
545 | const asection *sym_sec; |
546 | const struct elf32_hppa_link_hash_entry *hash; | |
547 | const Elf_Internal_Rela *rel; | |
edd21aca AM |
548 | { |
549 | char *stub_name; | |
dc810e39 | 550 | bfd_size_type len; |
edd21aca | 551 | |
30667bf3 AM |
552 | if (hash) |
553 | { | |
554 | len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1; | |
555 | stub_name = bfd_malloc (len); | |
556 | if (stub_name != NULL) | |
557 | { | |
558 | sprintf (stub_name, "%08x_%s+%x", | |
559 | input_section->id & 0xffffffff, | |
560 | hash->elf.root.root.string, | |
561 | (int) rel->r_addend & 0xffffffff); | |
562 | } | |
563 | } | |
564 | else | |
edd21aca | 565 | { |
30667bf3 AM |
566 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
567 | stub_name = bfd_malloc (len); | |
568 | if (stub_name != NULL) | |
569 | { | |
570 | sprintf (stub_name, "%08x_%x:%x+%x", | |
571 | input_section->id & 0xffffffff, | |
572 | sym_sec->id & 0xffffffff, | |
573 | (int) ELF32_R_SYM (rel->r_info) & 0xffffffff, | |
574 | (int) rel->r_addend & 0xffffffff); | |
575 | } | |
edd21aca AM |
576 | } |
577 | return stub_name; | |
578 | } | |
252b5132 | 579 | |
30667bf3 AM |
580 | /* Look up an entry in the stub hash. Stub entries are cached because |
581 | creating the stub name takes a bit of time. */ | |
582 | ||
583 | static struct elf32_hppa_stub_hash_entry * | |
83c81bfe | 584 | hppa_get_stub_entry (input_section, sym_sec, hash, rel, htab) |
30667bf3 AM |
585 | const asection *input_section; |
586 | const asection *sym_sec; | |
587 | struct elf32_hppa_link_hash_entry *hash; | |
588 | const Elf_Internal_Rela *rel; | |
83c81bfe | 589 | struct elf32_hppa_link_hash_table *htab; |
252b5132 | 590 | { |
30667bf3 | 591 | struct elf32_hppa_stub_hash_entry *stub_entry; |
25f72752 AM |
592 | const asection *id_sec; |
593 | ||
594 | /* If this input section is part of a group of sections sharing one | |
595 | stub section, then use the id of the first section in the group. | |
596 | Stub names need to include a section id, as there may well be | |
597 | more than one stub used to reach say, printf, and we need to | |
598 | distinguish between them. */ | |
83c81bfe | 599 | id_sec = htab->stub_group[input_section->id].link_sec; |
edd21aca | 600 | |
30667bf3 AM |
601 | if (hash != NULL && hash->stub_cache != NULL |
602 | && hash->stub_cache->h == hash | |
25f72752 | 603 | && hash->stub_cache->id_sec == id_sec) |
edd21aca | 604 | { |
30667bf3 AM |
605 | stub_entry = hash->stub_cache; |
606 | } | |
607 | else | |
608 | { | |
30667bf3 | 609 | char *stub_name; |
edd21aca | 610 | |
25f72752 | 611 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, rel); |
30667bf3 AM |
612 | if (stub_name == NULL) |
613 | return NULL; | |
edd21aca | 614 | |
83c81bfe | 615 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
25f72752 | 616 | stub_name, false, false); |
f09ebc7d AM |
617 | if (hash != NULL) |
618 | hash->stub_cache = stub_entry; | |
30667bf3 AM |
619 | |
620 | free (stub_name); | |
edd21aca | 621 | } |
30667bf3 AM |
622 | |
623 | return stub_entry; | |
624 | } | |
625 | ||
30667bf3 AM |
626 | /* Add a new stub entry to the stub hash. Not all fields of the new |
627 | stub entry are initialised. */ | |
628 | ||
629 | static struct elf32_hppa_stub_hash_entry * | |
83c81bfe | 630 | hppa_add_stub (stub_name, section, htab) |
30667bf3 AM |
631 | const char *stub_name; |
632 | asection *section; | |
83c81bfe | 633 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 634 | { |
25f72752 | 635 | asection *link_sec; |
30667bf3 | 636 | asection *stub_sec; |
30667bf3 | 637 | struct elf32_hppa_stub_hash_entry *stub_entry; |
edd21aca | 638 | |
83c81bfe AM |
639 | link_sec = htab->stub_group[section->id].link_sec; |
640 | stub_sec = htab->stub_group[section->id].stub_sec; | |
30667bf3 | 641 | if (stub_sec == NULL) |
edd21aca | 642 | { |
83c81bfe | 643 | stub_sec = htab->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
644 | if (stub_sec == NULL) |
645 | { | |
dc810e39 | 646 | bfd_size_type len; |
30667bf3 AM |
647 | char *s_name; |
648 | ||
25f72752 | 649 | len = strlen (link_sec->name) + sizeof (STUB_SUFFIX); |
83c81bfe | 650 | s_name = bfd_alloc (htab->stub_bfd, len); |
30667bf3 AM |
651 | if (s_name == NULL) |
652 | return NULL; | |
653 | ||
25f72752 | 654 | strcpy (s_name, link_sec->name); |
30667bf3 | 655 | strcpy (s_name + len - sizeof (STUB_SUFFIX), STUB_SUFFIX); |
83c81bfe | 656 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
657 | if (stub_sec == NULL) |
658 | return NULL; | |
83c81bfe | 659 | htab->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 660 | } |
83c81bfe | 661 | htab->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 662 | } |
252b5132 | 663 | |
30667bf3 | 664 | /* Enter this entry into the linker stub hash table. */ |
83c81bfe | 665 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
30667bf3 AM |
666 | true, false); |
667 | if (stub_entry == NULL) | |
668 | { | |
669 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
8f615d07 | 670 | bfd_archive_filename (section->owner), |
30667bf3 AM |
671 | stub_name); |
672 | return NULL; | |
edd21aca AM |
673 | } |
674 | ||
30667bf3 | 675 | stub_entry->stub_sec = stub_sec; |
30667bf3 | 676 | stub_entry->stub_offset = 0; |
25f72752 | 677 | stub_entry->id_sec = link_sec; |
30667bf3 | 678 | return stub_entry; |
edd21aca AM |
679 | } |
680 | ||
30667bf3 AM |
681 | /* Determine the type of stub needed, if any, for a call. */ |
682 | ||
683 | static enum elf32_hppa_stub_type | |
684 | hppa_type_of_stub (input_sec, rel, hash, destination) | |
685 | asection *input_sec; | |
686 | const Elf_Internal_Rela *rel; | |
687 | struct elf32_hppa_link_hash_entry *hash; | |
688 | bfd_vma destination; | |
edd21aca | 689 | { |
edd21aca | 690 | bfd_vma location; |
30667bf3 AM |
691 | bfd_vma branch_offset; |
692 | bfd_vma max_branch_offset; | |
693 | unsigned int r_type; | |
694 | ||
695 | if (hash != NULL | |
067fa4a6 AM |
696 | && hash->elf.plt.offset != (bfd_vma) -1 |
697 | && (hash->elf.dynindx != -1 || hash->pic_call) | |
698 | && !hash->plabel) | |
30667bf3 | 699 | { |
067fa4a6 AM |
700 | /* We need an import stub. Decide between hppa_stub_import |
701 | and hppa_stub_import_shared later. */ | |
30667bf3 AM |
702 | return hppa_stub_import; |
703 | } | |
edd21aca | 704 | |
30667bf3 AM |
705 | /* Determine where the call point is. */ |
706 | location = (input_sec->output_offset | |
707 | + input_sec->output_section->vma | |
708 | + rel->r_offset); | |
edd21aca | 709 | |
30667bf3 AM |
710 | branch_offset = destination - location - 8; |
711 | r_type = ELF32_R_TYPE (rel->r_info); | |
edd21aca | 712 | |
30667bf3 AM |
713 | /* Determine if a long branch stub is needed. parisc branch offsets |
714 | are relative to the second instruction past the branch, ie. +8 | |
715 | bytes on from the branch instruction location. The offset is | |
716 | signed and counts in units of 4 bytes. */ | |
717 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 718 | { |
30667bf3 AM |
719 | max_branch_offset = (1 << (17-1)) << 2; |
720 | } | |
721 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
722 | { | |
723 | max_branch_offset = (1 << (12-1)) << 2; | |
724 | } | |
25f72752 | 725 | else /* R_PARISC_PCREL22F. */ |
30667bf3 AM |
726 | { |
727 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
728 | } |
729 | ||
30667bf3 | 730 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
731 | return hppa_stub_long_branch; |
732 | ||
30667bf3 AM |
733 | return hppa_stub_none; |
734 | } | |
edd21aca | 735 | |
30667bf3 AM |
736 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
737 | IN_ARG contains the link info pointer. */ | |
edd21aca | 738 | |
30667bf3 AM |
739 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
740 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 741 | |
30667bf3 | 742 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 743 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 744 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 745 | |
3ee1d854 AM |
746 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
747 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 748 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 749 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 750 | |
3ee1d854 AM |
751 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
752 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 753 | |
30667bf3 AM |
754 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
755 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
756 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
757 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 758 | |
067fa4a6 | 759 | #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */ |
30667bf3 AM |
760 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
761 | #define NOP 0x08000240 /* nop */ | |
762 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
763 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
764 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 765 | |
30667bf3 AM |
766 | #ifndef R19_STUBS |
767 | #define R19_STUBS 1 | |
768 | #endif | |
edd21aca | 769 | |
30667bf3 AM |
770 | #if R19_STUBS |
771 | #define LDW_R1_DLT LDW_R1_R19 | |
772 | #else | |
773 | #define LDW_R1_DLT LDW_R1_DP | |
774 | #endif | |
edd21aca | 775 | |
30667bf3 AM |
776 | static boolean |
777 | hppa_build_one_stub (gen_entry, in_arg) | |
778 | struct bfd_hash_entry *gen_entry; | |
779 | PTR in_arg; | |
780 | { | |
781 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
782 | struct bfd_link_info *info; | |
83c81bfe | 783 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
784 | asection *stub_sec; |
785 | bfd *stub_bfd; | |
786 | bfd_byte *loc; | |
787 | bfd_vma sym_value; | |
74d1c347 | 788 | bfd_vma insn; |
8dea1268 | 789 | bfd_vma off; |
74d1c347 | 790 | int val; |
30667bf3 | 791 | int size; |
edd21aca | 792 | |
30667bf3 AM |
793 | /* Massage our args to the form they really have. */ |
794 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
795 | info = (struct bfd_link_info *) in_arg; | |
796 | ||
83c81bfe | 797 | htab = hppa_link_hash_table (info); |
30667bf3 | 798 | stub_sec = stub_entry->stub_sec; |
edd21aca | 799 | |
30667bf3 | 800 | /* Make a note of the offset within the stubs for this entry. */ |
74d1c347 | 801 | stub_entry->stub_offset = stub_sec->_raw_size; |
30667bf3 | 802 | loc = stub_sec->contents + stub_entry->stub_offset; |
252b5132 | 803 | |
30667bf3 AM |
804 | stub_bfd = stub_sec->owner; |
805 | ||
806 | switch (stub_entry->stub_type) | |
807 | { | |
808 | case hppa_stub_long_branch: | |
809 | /* Create the long branch. A long branch is formed with "ldil" | |
810 | loading the upper bits of the target address into a register, | |
811 | then branching with "be" which adds in the lower bits. | |
812 | The "be" has its delay slot nullified. */ | |
813 | sym_value = (stub_entry->target_value | |
814 | + stub_entry->target_section->output_offset | |
815 | + stub_entry->target_section->output_section->vma); | |
816 | ||
74d1c347 AM |
817 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel); |
818 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); | |
30667bf3 AM |
819 | bfd_put_32 (stub_bfd, insn, loc); |
820 | ||
74d1c347 AM |
821 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel) >> 2; |
822 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); | |
30667bf3 AM |
823 | bfd_put_32 (stub_bfd, insn, loc + 4); |
824 | ||
30667bf3 | 825 | size = 8; |
edd21aca AM |
826 | break; |
827 | ||
30667bf3 AM |
828 | case hppa_stub_long_branch_shared: |
829 | /* Branches are relative. This is where we are going to. */ | |
830 | sym_value = (stub_entry->target_value | |
831 | + stub_entry->target_section->output_offset | |
832 | + stub_entry->target_section->output_section->vma); | |
833 | ||
834 | /* And this is where we are coming from, more or less. */ | |
835 | sym_value -= (stub_entry->stub_offset | |
836 | + stub_sec->output_offset | |
837 | + stub_sec->output_section->vma); | |
838 | ||
74d1c347 | 839 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 840 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 841 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
842 | bfd_put_32 (stub_bfd, insn, loc + 4); |
843 | ||
47d89dba | 844 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 845 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
846 | bfd_put_32 (stub_bfd, insn, loc + 8); |
847 | size = 12; | |
848 | break; | |
edd21aca | 849 | |
30667bf3 AM |
850 | case hppa_stub_import: |
851 | case hppa_stub_import_shared: | |
8dea1268 AM |
852 | off = stub_entry->h->elf.plt.offset; |
853 | if (off >= (bfd_vma) -2) | |
49e9d0d3 | 854 | abort (); |
8dea1268 AM |
855 | |
856 | off &= ~ (bfd_vma) 1; | |
857 | sym_value = (off | |
83c81bfe AM |
858 | + htab->splt->output_offset |
859 | + htab->splt->output_section->vma | |
860 | - elf_gp (htab->splt->output_section->owner)); | |
30667bf3 AM |
861 | |
862 | insn = ADDIL_DP; | |
863 | #if R19_STUBS | |
864 | if (stub_entry->stub_type == hppa_stub_import_shared) | |
865 | insn = ADDIL_R19; | |
866 | #endif | |
47d89dba | 867 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel), |
74d1c347 | 868 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 869 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 870 | |
47d89dba AM |
871 | /* It is critical to use lrsel/rrsel here because we are using |
872 | two different offsets (+0 and +4) from sym_value. If we use | |
873 | lsel/rsel then with unfortunate sym_values we will round | |
874 | sym_value+4 up to the next 2k block leading to a mis-match | |
875 | between the lsel and rsel value. */ | |
876 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel); | |
74d1c347 | 877 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 878 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 879 | |
83c81bfe | 880 | if (htab->multi_subspace) |
30667bf3 | 881 | { |
47d89dba | 882 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 883 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 884 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 885 | |
74d1c347 AM |
886 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
887 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
888 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
889 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 890 | |
30667bf3 AM |
891 | size = 28; |
892 | } | |
893 | else | |
894 | { | |
74d1c347 | 895 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 896 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 897 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 898 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 899 | |
30667bf3 AM |
900 | size = 16; |
901 | } | |
252b5132 | 902 | |
30667bf3 AM |
903 | if (!info->shared |
904 | && stub_entry->h != NULL | |
905 | && stub_entry->h->pic_call) | |
252b5132 | 906 | { |
30667bf3 AM |
907 | /* Build the .plt entry needed to call a PIC function from |
908 | statically linked code. We don't need any relocs. */ | |
909 | bfd *dynobj; | |
910 | struct elf32_hppa_link_hash_entry *eh; | |
911 | bfd_vma value; | |
252b5132 | 912 | |
ebe50bae | 913 | dynobj = htab->elf.dynobj; |
30667bf3 | 914 | eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h; |
252b5132 | 915 | |
49e9d0d3 AM |
916 | if (eh->elf.root.type != bfd_link_hash_defined |
917 | && eh->elf.root.type != bfd_link_hash_defweak) | |
918 | abort (); | |
252b5132 | 919 | |
30667bf3 AM |
920 | value = (eh->elf.root.u.def.value |
921 | + eh->elf.root.u.def.section->output_offset | |
922 | + eh->elf.root.u.def.section->output_section->vma); | |
252b5132 | 923 | |
30667bf3 | 924 | /* Fill in the entry in the procedure linkage table. |
252b5132 | 925 | |
30667bf3 | 926 | The format of a plt entry is |
74d1c347 AM |
927 | <funcaddr> |
928 | <__gp>. */ | |
252b5132 | 929 | |
83c81bfe AM |
930 | bfd_put_32 (htab->splt->owner, value, |
931 | htab->splt->contents + off); | |
932 | value = elf_gp (htab->splt->output_section->owner); | |
933 | bfd_put_32 (htab->splt->owner, value, | |
934 | htab->splt->contents + off + 4); | |
252b5132 | 935 | } |
30667bf3 | 936 | break; |
252b5132 | 937 | |
30667bf3 AM |
938 | case hppa_stub_export: |
939 | /* Branches are relative. This is where we are going to. */ | |
940 | sym_value = (stub_entry->target_value | |
941 | + stub_entry->target_section->output_offset | |
942 | + stub_entry->target_section->output_section->vma); | |
252b5132 | 943 | |
30667bf3 AM |
944 | /* And this is where we are coming from. */ |
945 | sym_value -= (stub_entry->stub_offset | |
946 | + stub_sec->output_offset | |
947 | + stub_sec->output_section->vma); | |
edd21aca | 948 | |
067fa4a6 AM |
949 | if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2)) |
950 | && (!htab->has_22bit_branch | |
951 | || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2)))) | |
30667bf3 | 952 | { |
edd21aca | 953 | (*_bfd_error_handler) |
30667bf3 | 954 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
8f615d07 | 955 | bfd_archive_filename (stub_entry->target_section->owner), |
30667bf3 AM |
956 | stub_sec->name, |
957 | (long) stub_entry->stub_offset, | |
958 | stub_entry->root.string); | |
959 | bfd_set_error (bfd_error_bad_value); | |
edd21aca | 960 | return false; |
252b5132 | 961 | } |
30667bf3 | 962 | |
74d1c347 | 963 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
067fa4a6 AM |
964 | if (!htab->has_22bit_branch) |
965 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
966 | else | |
967 | insn = hppa_rebuild_insn ((int) BL22_RP, val, 22); | |
30667bf3 AM |
968 | bfd_put_32 (stub_bfd, insn, loc); |
969 | ||
74d1c347 AM |
970 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
971 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
972 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
973 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
974 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
975 | |
976 | /* Point the function symbol at the stub. */ | |
977 | stub_entry->h->elf.root.u.def.section = stub_sec; | |
74d1c347 | 978 | stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size; |
30667bf3 AM |
979 | |
980 | size = 24; | |
981 | break; | |
982 | ||
983 | default: | |
984 | BFD_FAIL (); | |
985 | return false; | |
252b5132 RH |
986 | } |
987 | ||
74d1c347 | 988 | stub_sec->_raw_size += size; |
252b5132 RH |
989 | return true; |
990 | } | |
991 | ||
30667bf3 AM |
992 | #undef LDIL_R1 |
993 | #undef BE_SR4_R1 | |
994 | #undef BL_R1 | |
995 | #undef ADDIL_R1 | |
996 | #undef DEPI_R1 | |
997 | #undef ADDIL_DP | |
998 | #undef LDW_R1_R21 | |
999 | #undef LDW_R1_DLT | |
1000 | #undef LDW_R1_R19 | |
1001 | #undef ADDIL_R19 | |
1002 | #undef LDW_R1_DP | |
1003 | #undef LDSID_R21_R1 | |
1004 | #undef MTSP_R1 | |
1005 | #undef BE_SR0_R21 | |
1006 | #undef STW_RP | |
1007 | #undef BV_R0_R21 | |
1008 | #undef BL_RP | |
1009 | #undef NOP | |
1010 | #undef LDW_RP | |
1011 | #undef LDSID_RP_R1 | |
1012 | #undef BE_SR0_RP | |
252b5132 | 1013 | |
30667bf3 AM |
1014 | /* As above, but don't actually build the stub. Just bump offset so |
1015 | we know stub section sizes. */ | |
1016 | ||
1017 | static boolean | |
1018 | hppa_size_one_stub (gen_entry, in_arg) | |
1019 | struct bfd_hash_entry *gen_entry; | |
1020 | PTR in_arg; | |
252b5132 | 1021 | { |
30667bf3 | 1022 | struct elf32_hppa_stub_hash_entry *stub_entry; |
83c81bfe | 1023 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1024 | int size; |
1025 | ||
1026 | /* Massage our args to the form they really have. */ | |
1027 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
83c81bfe | 1028 | htab = (struct elf32_hppa_link_hash_table *) in_arg; |
30667bf3 AM |
1029 | |
1030 | if (stub_entry->stub_type == hppa_stub_long_branch) | |
98ceb8ce | 1031 | size = 8; |
30667bf3 AM |
1032 | else if (stub_entry->stub_type == hppa_stub_long_branch_shared) |
1033 | size = 12; | |
1034 | else if (stub_entry->stub_type == hppa_stub_export) | |
1035 | size = 24; | |
74d1c347 | 1036 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 1037 | { |
83c81bfe | 1038 | if (htab->multi_subspace) |
30667bf3 AM |
1039 | size = 28; |
1040 | else | |
1041 | size = 16; | |
1042 | } | |
252b5132 | 1043 | |
74d1c347 | 1044 | stub_entry->stub_sec->_raw_size += size; |
30667bf3 AM |
1045 | return true; |
1046 | } | |
252b5132 | 1047 | |
30667bf3 AM |
1048 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
1049 | Additionally we set the default architecture and machine. */ | |
1050 | ||
1051 | static boolean | |
1052 | elf32_hppa_object_p (abfd) | |
1053 | bfd *abfd; | |
1054 | { | |
24a5e751 L |
1055 | Elf_Internal_Ehdr * i_ehdrp; |
1056 | unsigned int flags; | |
252b5132 | 1057 | |
24a5e751 L |
1058 | i_ehdrp = elf_elfheader (abfd); |
1059 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
1060 | { | |
1061 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX) | |
1062 | return false; | |
1063 | } | |
1064 | else | |
1065 | { | |
1066 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
1067 | return false; | |
1068 | } | |
1069 | ||
1070 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
1071 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
1072 | { | |
1073 | case EFA_PARISC_1_0: | |
1074 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
1075 | case EFA_PARISC_1_1: | |
1076 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
1077 | case EFA_PARISC_2_0: | |
1078 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
1079 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
1080 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
1081 | } | |
1082 | return true; | |
252b5132 RH |
1083 | } |
1084 | ||
252b5132 RH |
1085 | /* Undo the generic ELF code's subtraction of section->vma from the |
1086 | value of each external symbol. */ | |
1087 | ||
1088 | static boolean | |
1089 | elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
5f771d47 ILT |
1090 | bfd *abfd ATTRIBUTE_UNUSED; |
1091 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1092 | const Elf_Internal_Sym *sym ATTRIBUTE_UNUSED; | |
1093 | const char **namep ATTRIBUTE_UNUSED; | |
1094 | flagword *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
1095 | asection **secp; |
1096 | bfd_vma *valp; | |
1097 | { | |
1098 | *valp += (*secp)->vma; | |
1099 | return true; | |
1100 | } | |
1101 | ||
30667bf3 AM |
1102 | /* Create the .plt and .got sections, and set up our hash table |
1103 | short-cuts to various dynamic sections. */ | |
1104 | ||
1105 | static boolean | |
1106 | elf32_hppa_create_dynamic_sections (abfd, info) | |
1107 | bfd *abfd; | |
1108 | struct bfd_link_info *info; | |
252b5132 | 1109 | { |
83c81bfe | 1110 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 1111 | |
30667bf3 | 1112 | /* Don't try to create the .plt and .got twice. */ |
83c81bfe AM |
1113 | htab = hppa_link_hash_table (info); |
1114 | if (htab->splt != NULL) | |
30667bf3 | 1115 | return true; |
edd21aca | 1116 | |
30667bf3 AM |
1117 | /* Call the generic code to do most of the work. */ |
1118 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
1119 | return false; | |
252b5132 | 1120 | |
83c81bfe AM |
1121 | htab->splt = bfd_get_section_by_name (abfd, ".plt"); |
1122 | htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
30667bf3 | 1123 | |
83c81bfe AM |
1124 | htab->sgot = bfd_get_section_by_name (abfd, ".got"); |
1125 | htab->srelgot = bfd_make_section (abfd, ".rela.got"); | |
1126 | if (htab->srelgot == NULL | |
1127 | || ! bfd_set_section_flags (abfd, htab->srelgot, | |
30667bf3 AM |
1128 | (SEC_ALLOC |
1129 | | SEC_LOAD | |
1130 | | SEC_HAS_CONTENTS | |
1131 | | SEC_IN_MEMORY | |
1132 | | SEC_LINKER_CREATED | |
1133 | | SEC_READONLY)) | |
83c81bfe | 1134 | || ! bfd_set_section_alignment (abfd, htab->srelgot, 2)) |
30667bf3 | 1135 | return false; |
edd21aca | 1136 | |
83c81bfe AM |
1137 | htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
1138 | htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
30667bf3 AM |
1139 | |
1140 | return true; | |
1141 | } | |
1142 | ||
ebe50bae AM |
1143 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1144 | ||
51b64d56 | 1145 | static void |
ebe50bae AM |
1146 | elf32_hppa_copy_indirect_symbol (dir, ind) |
1147 | struct elf_link_hash_entry *dir, *ind; | |
1148 | { | |
1149 | struct elf32_hppa_link_hash_entry *edir, *eind; | |
1150 | ||
1151 | edir = (struct elf32_hppa_link_hash_entry *) dir; | |
1152 | eind = (struct elf32_hppa_link_hash_entry *) ind; | |
1153 | ||
bbd7ec4a | 1154 | if (eind->dyn_relocs != NULL) |
ebe50bae | 1155 | { |
bbd7ec4a AM |
1156 | if (edir->dyn_relocs != NULL) |
1157 | { | |
1158 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1159 | struct elf32_hppa_dyn_reloc_entry *p; | |
1160 | ||
1e370bd2 | 1161 | if (ind->root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
1162 | abort (); |
1163 | ||
1164 | /* Add reloc counts against the weak sym to the strong sym | |
1165 | list. Merge any entries against the same section. */ | |
1166 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
1167 | { | |
1168 | struct elf32_hppa_dyn_reloc_entry *q; | |
1169 | ||
1170 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
1171 | if (q->sec == p->sec) | |
1172 | { | |
1173 | #if RELATIVE_DYNRELOCS | |
1174 | q->relative_count += p->relative_count; | |
1175 | #endif | |
1176 | q->count += p->count; | |
1177 | *pp = p->next; | |
1178 | break; | |
1179 | } | |
1180 | if (q == NULL) | |
1181 | pp = &p->next; | |
1182 | } | |
1183 | *pp = edir->dyn_relocs; | |
1184 | } | |
1185 | ||
ebe50bae AM |
1186 | edir->dyn_relocs = eind->dyn_relocs; |
1187 | eind->dyn_relocs = NULL; | |
1188 | } | |
ebe50bae AM |
1189 | |
1190 | _bfd_elf_link_hash_copy_indirect (dir, ind); | |
1191 | } | |
1192 | ||
30667bf3 | 1193 | /* Look through the relocs for a section during the first phase, and |
3ac8354b AM |
1194 | calculate needed space in the global offset table, procedure linkage |
1195 | table, and dynamic reloc sections. At this point we haven't | |
1196 | necessarily read all the input files. */ | |
252b5132 RH |
1197 | |
1198 | static boolean | |
30667bf3 AM |
1199 | elf32_hppa_check_relocs (abfd, info, sec, relocs) |
1200 | bfd *abfd; | |
1201 | struct bfd_link_info *info; | |
1202 | asection *sec; | |
1203 | const Elf_Internal_Rela *relocs; | |
252b5132 | 1204 | { |
30667bf3 AM |
1205 | Elf_Internal_Shdr *symtab_hdr; |
1206 | struct elf_link_hash_entry **sym_hashes; | |
30667bf3 AM |
1207 | const Elf_Internal_Rela *rel; |
1208 | const Elf_Internal_Rela *rel_end; | |
83c81bfe | 1209 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1210 | asection *sreloc; |
1211 | asection *stubreloc; | |
1212 | ||
1213 | if (info->relocateable) | |
1214 | return true; | |
1215 | ||
83c81bfe | 1216 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1217 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1218 | sym_hashes = elf_sym_hashes (abfd); | |
30667bf3 AM |
1219 | sreloc = NULL; |
1220 | stubreloc = NULL; | |
1221 | ||
1222 | rel_end = relocs + sec->reloc_count; | |
1223 | for (rel = relocs; rel < rel_end; rel++) | |
1224 | { | |
1225 | enum { | |
1226 | NEED_GOT = 1, | |
1227 | NEED_PLT = 2, | |
1228 | NEED_DYNREL = 4, | |
98ceb8ce | 1229 | PLT_PLABEL = 8 |
30667bf3 | 1230 | }; |
edd21aca | 1231 | |
30667bf3 AM |
1232 | unsigned int r_symndx, r_type; |
1233 | struct elf32_hppa_link_hash_entry *h; | |
1234 | int need_entry; | |
252b5132 | 1235 | |
30667bf3 | 1236 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 | 1237 | |
30667bf3 AM |
1238 | if (r_symndx < symtab_hdr->sh_info) |
1239 | h = NULL; | |
1240 | else | |
1241 | h = ((struct elf32_hppa_link_hash_entry *) | |
1242 | sym_hashes[r_symndx - symtab_hdr->sh_info]); | |
252b5132 | 1243 | |
30667bf3 | 1244 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 | 1245 | |
30667bf3 AM |
1246 | switch (r_type) |
1247 | { | |
1248 | case R_PARISC_DLTIND14F: | |
1249 | case R_PARISC_DLTIND14R: | |
1250 | case R_PARISC_DLTIND21L: | |
1251 | /* This symbol requires a global offset table entry. */ | |
1252 | need_entry = NEED_GOT; | |
1253 | ||
1254 | /* Mark this section as containing PIC code. */ | |
1255 | sec->flags |= SEC_HAS_GOT_REF; | |
1256 | break; | |
1257 | ||
1258 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1259 | case R_PARISC_PLABEL21L: | |
1260 | case R_PARISC_PLABEL32: | |
74d1c347 | 1261 | /* If the addend is non-zero, we break badly. */ |
49e9d0d3 AM |
1262 | if (rel->r_addend != 0) |
1263 | abort (); | |
74d1c347 AM |
1264 | |
1265 | /* If we are creating a shared library, then we need to | |
1266 | create a PLT entry for all PLABELs, because PLABELs with | |
1267 | local symbols may be passed via a pointer to another | |
1268 | object. Additionally, output a dynamic relocation | |
4dc86686 AM |
1269 | pointing to the PLT entry. |
1270 | For executables, the original 32-bit ABI allowed two | |
1271 | different styles of PLABELs (function pointers): For | |
1272 | global functions, the PLABEL word points into the .plt | |
1273 | two bytes past a (function address, gp) pair, and for | |
1274 | local functions the PLABEL points directly at the | |
1275 | function. The magic +2 for the first type allows us to | |
1276 | differentiate between the two. As you can imagine, this | |
1277 | is a real pain when it comes to generating code to call | |
1278 | functions indirectly or to compare function pointers. | |
1279 | We avoid the mess by always pointing a PLABEL into the | |
1280 | .plt, even for local functions. */ | |
74d1c347 | 1281 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1282 | break; |
1283 | ||
1284 | case R_PARISC_PCREL12F: | |
83c81bfe | 1285 | htab->has_12bit_branch = 1; |
067fa4a6 AM |
1286 | goto branch_common; |
1287 | ||
30667bf3 AM |
1288 | case R_PARISC_PCREL17C: |
1289 | case R_PARISC_PCREL17F: | |
83c81bfe | 1290 | htab->has_17bit_branch = 1; |
067fa4a6 AM |
1291 | goto branch_common; |
1292 | ||
30667bf3 | 1293 | case R_PARISC_PCREL22F: |
067fa4a6 AM |
1294 | htab->has_22bit_branch = 1; |
1295 | branch_common: | |
47d89dba AM |
1296 | /* Function calls might need to go through the .plt, and |
1297 | might require long branch stubs. */ | |
30667bf3 AM |
1298 | if (h == NULL) |
1299 | { | |
1300 | /* We know local syms won't need a .plt entry, and if | |
1301 | they need a long branch stub we can't guarantee that | |
1302 | we can reach the stub. So just flag an error later | |
1303 | if we're doing a shared link and find we need a long | |
1304 | branch stub. */ | |
1305 | continue; | |
1306 | } | |
1307 | else | |
1308 | { | |
1309 | /* Global symbols will need a .plt entry if they remain | |
1310 | global, and in most cases won't need a long branch | |
1311 | stub. Unfortunately, we have to cater for the case | |
1312 | where a symbol is forced local by versioning, or due | |
1313 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1314 | need_entry = NEED_PLT; |
4dc86686 | 1315 | if (h->elf.type == STT_PARISC_MILLI) |
98ceb8ce | 1316 | need_entry = 0; |
30667bf3 AM |
1317 | } |
1318 | break; | |
1319 | ||
1320 | case R_PARISC_SEGBASE: /* Used to set segment base. */ | |
c46b7515 | 1321 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1322 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1323 | case R_PARISC_PCREL14R: | |
1324 | case R_PARISC_PCREL17R: /* External branches. */ | |
1325 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
1326 | /* We don't need to propagate the relocation if linking a | |
1327 | shared object since these are section relative. */ | |
1328 | continue; | |
1329 | ||
1330 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1331 | case R_PARISC_DPREL14R: | |
1332 | case R_PARISC_DPREL21L: | |
1333 | if (info->shared) | |
1334 | { | |
1335 | (*_bfd_error_handler) | |
1336 | (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1337 | bfd_archive_filename (abfd), |
30667bf3 AM |
1338 | elf_hppa_howto_table[r_type].name); |
1339 | bfd_set_error (bfd_error_bad_value); | |
1340 | return false; | |
1341 | } | |
1342 | /* Fall through. */ | |
1343 | ||
1344 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1345 | case R_PARISC_DIR17R: | |
47d89dba AM |
1346 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1347 | case R_PARISC_DIR14R: | |
30667bf3 | 1348 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
067fa4a6 | 1349 | #if 0 |
30667bf3 AM |
1350 | /* Help debug shared library creation. Any of the above |
1351 | relocs can be used in shared libs, but they may cause | |
1352 | pages to become unshared. */ | |
1353 | if (info->shared) | |
1354 | { | |
1355 | (*_bfd_error_handler) | |
1356 | (_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1357 | bfd_archive_filename (abfd), |
30667bf3 AM |
1358 | elf_hppa_howto_table[r_type].name); |
1359 | } | |
1360 | /* Fall through. */ | |
1361 | #endif | |
1362 | ||
c46b7515 | 1363 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1364 | /* We may want to output a dynamic relocation later. */ |
1365 | need_entry = NEED_DYNREL; | |
1366 | break; | |
1367 | ||
1368 | /* This relocation describes the C++ object vtable hierarchy. | |
1369 | Reconstruct it for later use during GC. */ | |
1370 | case R_PARISC_GNU_VTINHERIT: | |
1371 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, | |
1372 | &h->elf, rel->r_offset)) | |
1373 | return false; | |
1374 | continue; | |
1375 | ||
1376 | /* This relocation describes which C++ vtable entries are actually | |
1377 | used. Record for later use during GC. */ | |
1378 | case R_PARISC_GNU_VTENTRY: | |
1379 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, | |
36605136 | 1380 | &h->elf, rel->r_addend)) |
30667bf3 AM |
1381 | return false; |
1382 | continue; | |
1383 | ||
1384 | default: | |
1385 | continue; | |
1386 | } | |
1387 | ||
1388 | /* Now carry out our orders. */ | |
1389 | if (need_entry & NEED_GOT) | |
1390 | { | |
1391 | /* Allocate space for a GOT entry, as well as a dynamic | |
25f72752 | 1392 | relocation for this entry. */ |
83c81bfe | 1393 | if (htab->sgot == NULL) |
30667bf3 | 1394 | { |
3ac8354b AM |
1395 | if (htab->elf.dynobj == NULL) |
1396 | htab->elf.dynobj = abfd; | |
1397 | if (!elf32_hppa_create_dynamic_sections (htab->elf.dynobj, info)) | |
30667bf3 AM |
1398 | return false; |
1399 | } | |
1400 | ||
1401 | if (h != NULL) | |
1402 | { | |
51b64d56 | 1403 | h->elf.got.refcount += 1; |
30667bf3 AM |
1404 | } |
1405 | else | |
1406 | { | |
3ac8354b AM |
1407 | bfd_signed_vma *local_got_refcounts; |
1408 | ||
30667bf3 | 1409 | /* This is a global offset table entry for a local symbol. */ |
3ac8354b | 1410 | local_got_refcounts = elf_local_got_refcounts (abfd); |
30667bf3 AM |
1411 | if (local_got_refcounts == NULL) |
1412 | { | |
dc810e39 | 1413 | bfd_size_type size; |
30667bf3 | 1414 | |
74d1c347 AM |
1415 | /* Allocate space for local got offsets and local |
1416 | plt offsets. Done this way to save polluting | |
1417 | elf_obj_tdata with another target specific | |
1418 | pointer. */ | |
dc810e39 AM |
1419 | size = symtab_hdr->sh_info; |
1420 | size *= 2 * sizeof (bfd_signed_vma); | |
30667bf3 | 1421 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1422 | bfd_zalloc (abfd, size)); |
30667bf3 AM |
1423 | if (local_got_refcounts == NULL) |
1424 | return false; | |
1425 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
30667bf3 | 1426 | } |
ebe50bae | 1427 | local_got_refcounts[r_symndx] += 1; |
30667bf3 AM |
1428 | } |
1429 | } | |
1430 | ||
1431 | if (need_entry & NEED_PLT) | |
1432 | { | |
1433 | /* If we are creating a shared library, and this is a reloc | |
1434 | against a weak symbol or a global symbol in a dynamic | |
1435 | object, then we will be creating an import stub and a | |
1436 | .plt entry for the symbol. Similarly, on a normal link | |
1437 | to symbols defined in a dynamic object we'll need the | |
1438 | import stub and a .plt entry. We don't know yet whether | |
1439 | the symbol is defined or not, so make an entry anyway and | |
1440 | clean up later in adjust_dynamic_symbol. */ | |
1441 | if ((sec->flags & SEC_ALLOC) != 0) | |
1442 | { | |
74d1c347 | 1443 | if (h != NULL) |
30667bf3 | 1444 | { |
51b64d56 AM |
1445 | h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
1446 | h->elf.plt.refcount += 1; | |
74d1c347 | 1447 | |
36605136 AM |
1448 | /* If this .plt entry is for a plabel, mark it so |
1449 | that adjust_dynamic_symbol will keep the entry | |
1450 | even if it appears to be local. */ | |
74d1c347 AM |
1451 | if (need_entry & PLT_PLABEL) |
1452 | h->plabel = 1; | |
1453 | } | |
1454 | else if (need_entry & PLT_PLABEL) | |
1455 | { | |
3ac8354b | 1456 | bfd_signed_vma *local_got_refcounts; |
68fb2e56 | 1457 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 | 1458 | |
3ac8354b | 1459 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1460 | if (local_got_refcounts == NULL) |
1461 | { | |
dc810e39 | 1462 | bfd_size_type size; |
74d1c347 AM |
1463 | |
1464 | /* Allocate space for local got offsets and local | |
1465 | plt offsets. */ | |
dc810e39 AM |
1466 | size = symtab_hdr->sh_info; |
1467 | size *= 2 * sizeof (bfd_signed_vma); | |
74d1c347 | 1468 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1469 | bfd_zalloc (abfd, size)); |
74d1c347 AM |
1470 | if (local_got_refcounts == NULL) |
1471 | return false; | |
1472 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
74d1c347 | 1473 | } |
68fb2e56 AM |
1474 | local_plt_refcounts = (local_got_refcounts |
1475 | + symtab_hdr->sh_info); | |
ebe50bae | 1476 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1477 | } |
30667bf3 AM |
1478 | } |
1479 | } | |
1480 | ||
98ceb8ce | 1481 | if (need_entry & NEED_DYNREL) |
30667bf3 AM |
1482 | { |
1483 | /* Flag this symbol as having a non-got, non-plt reference | |
1484 | so that we generate copy relocs if it turns out to be | |
1485 | dynamic. */ | |
ebe50bae | 1486 | if (h != NULL && !info->shared) |
30667bf3 AM |
1487 | h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; |
1488 | ||
1489 | /* If we are creating a shared library then we need to copy | |
1490 | the reloc into the shared library. However, if we are | |
1491 | linking with -Bsymbolic, we need only copy absolute | |
1492 | relocs or relocs against symbols that are not defined in | |
1493 | an object we are including in the link. PC- or DP- or | |
1494 | DLT-relative relocs against any local sym or global sym | |
1495 | with DEF_REGULAR set, can be discarded. At this point we | |
1496 | have not seen all the input files, so it is possible that | |
1497 | DEF_REGULAR is not set now but will be set later (it is | |
1498 | never cleared). We account for that possibility below by | |
98ceb8ce | 1499 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1500 | hash table entry. |
1501 | ||
1502 | A similar situation to the -Bsymbolic case occurs when | |
1503 | creating shared libraries and symbol visibility changes | |
1504 | render the symbol local. | |
1505 | ||
1506 | As it turns out, all the relocs we will be creating here | |
1507 | are absolute, so we cannot remove them on -Bsymbolic | |
1508 | links or visibility changes anyway. A STUB_REL reloc | |
1509 | is absolute too, as in that case it is the reloc in the | |
1510 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1511 | reloc in the branch. |
1512 | ||
1513 | If on the other hand, we are creating an executable, we | |
1514 | may need to keep relocations for symbols satisfied by a | |
1515 | dynamic library if we manage to avoid copy relocs for the | |
1516 | symbol. */ | |
446f2863 AM |
1517 | if ((info->shared |
1518 | && (sec->flags & SEC_ALLOC) != 0 | |
1519 | && (IS_ABSOLUTE_RELOC (r_type) | |
1520 | || (h != NULL | |
1521 | && (!info->symbolic | |
1522 | || h->elf.root.type == bfd_link_hash_defweak | |
1523 | || (h->elf.elf_link_hash_flags | |
1524 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1525 | || (!info->shared | |
1526 | && (sec->flags & SEC_ALLOC) != 0 | |
1527 | && h != NULL | |
446f2863 AM |
1528 | && (h->elf.root.type == bfd_link_hash_defweak |
1529 | || (h->elf.elf_link_hash_flags | |
1530 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
30667bf3 | 1531 | { |
ec338859 AM |
1532 | struct elf32_hppa_dyn_reloc_entry *p; |
1533 | struct elf32_hppa_dyn_reloc_entry **head; | |
1534 | ||
30667bf3 AM |
1535 | /* Create a reloc section in dynobj and make room for |
1536 | this reloc. */ | |
98ceb8ce | 1537 | if (sreloc == NULL) |
30667bf3 AM |
1538 | { |
1539 | char *name; | |
3ac8354b | 1540 | bfd *dynobj; |
30667bf3 | 1541 | |
98ceb8ce AM |
1542 | name = (bfd_elf_string_from_elf_section |
1543 | (abfd, | |
1544 | elf_elfheader (abfd)->e_shstrndx, | |
1545 | elf_section_data (sec)->rel_hdr.sh_name)); | |
30667bf3 AM |
1546 | if (name == NULL) |
1547 | { | |
1548 | (*_bfd_error_handler) | |
1549 | (_("Could not find relocation section for %s"), | |
1550 | sec->name); | |
1551 | bfd_set_error (bfd_error_bad_value); | |
1552 | return false; | |
1553 | } | |
1554 | ||
3ac8354b AM |
1555 | if (htab->elf.dynobj == NULL) |
1556 | htab->elf.dynobj = abfd; | |
1557 | ||
1558 | dynobj = htab->elf.dynobj; | |
98ceb8ce AM |
1559 | sreloc = bfd_get_section_by_name (dynobj, name); |
1560 | if (sreloc == NULL) | |
30667bf3 AM |
1561 | { |
1562 | flagword flags; | |
1563 | ||
98ceb8ce | 1564 | sreloc = bfd_make_section (dynobj, name); |
30667bf3 AM |
1565 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1566 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1567 | if ((sec->flags & SEC_ALLOC) != 0) | |
1568 | flags |= SEC_ALLOC | SEC_LOAD; | |
98ceb8ce AM |
1569 | if (sreloc == NULL |
1570 | || !bfd_set_section_flags (dynobj, sreloc, flags) | |
1571 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) | |
30667bf3 AM |
1572 | return false; |
1573 | } | |
30667bf3 | 1574 | |
98ceb8ce | 1575 | elf_section_data (sec)->sreloc = sreloc; |
30667bf3 AM |
1576 | } |
1577 | ||
98ceb8ce AM |
1578 | /* If this is a global symbol, we count the number of |
1579 | relocations we need for this symbol. */ | |
1580 | if (h != NULL) | |
30667bf3 | 1581 | { |
ec338859 AM |
1582 | head = &h->dyn_relocs; |
1583 | } | |
1584 | else | |
1585 | { | |
1586 | /* Track dynamic relocs needed for local syms too. | |
1587 | We really need local syms available to do this | |
1588 | easily. Oh well. */ | |
1589 | ||
1590 | asection *s; | |
1591 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
1592 | sec, r_symndx); | |
1593 | if (s == NULL) | |
1594 | return false; | |
30667bf3 | 1595 | |
ec338859 AM |
1596 | head = ((struct elf32_hppa_dyn_reloc_entry **) |
1597 | &elf_section_data (s)->local_dynrel); | |
1598 | } | |
1599 | ||
1600 | p = *head; | |
1601 | if (p == NULL || p->sec != sec) | |
1602 | { | |
1603 | p = ((struct elf32_hppa_dyn_reloc_entry *) | |
1604 | bfd_alloc (htab->elf.dynobj, | |
1605 | (bfd_size_type) sizeof *p)); | |
1606 | if (p == NULL) | |
1607 | return false; | |
1608 | p->next = *head; | |
1609 | *head = p; | |
1610 | p->sec = sec; | |
1611 | p->count = 0; | |
98ceb8ce | 1612 | #if RELATIVE_DYNRELOCS |
ec338859 | 1613 | p->relative_count = 0; |
98ceb8ce | 1614 | #endif |
ec338859 | 1615 | } |
98ceb8ce | 1616 | |
ec338859 | 1617 | p->count += 1; |
98ceb8ce | 1618 | #if RELATIVE_DYNRELOCS |
ec338859 AM |
1619 | if (!IS_ABSOLUTE_RELOC (rtype)) |
1620 | p->relative_count += 1; | |
98ceb8ce | 1621 | #endif |
30667bf3 AM |
1622 | } |
1623 | } | |
1624 | } | |
edd21aca AM |
1625 | |
1626 | return true; | |
1627 | } | |
1628 | ||
30667bf3 AM |
1629 | /* Return the section that should be marked against garbage collection |
1630 | for a given relocation. */ | |
1631 | ||
1632 | static asection * | |
1633 | elf32_hppa_gc_mark_hook (abfd, info, rel, h, sym) | |
1634 | bfd *abfd; | |
1635 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1636 | Elf_Internal_Rela *rel; | |
1637 | struct elf_link_hash_entry *h; | |
1638 | Elf_Internal_Sym *sym; | |
1639 | { | |
1640 | if (h != NULL) | |
1641 | { | |
1642 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1643 | { | |
1644 | case R_PARISC_GNU_VTINHERIT: | |
1645 | case R_PARISC_GNU_VTENTRY: | |
1646 | break; | |
1647 | ||
1648 | default: | |
1649 | switch (h->root.type) | |
1650 | { | |
1651 | case bfd_link_hash_defined: | |
1652 | case bfd_link_hash_defweak: | |
1653 | return h->root.u.def.section; | |
1654 | ||
1655 | case bfd_link_hash_common: | |
1656 | return h->root.u.c.p->section; | |
1657 | ||
1658 | default: | |
1659 | break; | |
1660 | } | |
1661 | } | |
1662 | } | |
1663 | else | |
1664 | { | |
9ad5cbcf | 1665 | return bfd_section_from_elf_index (abfd, sym->st_shndx); |
30667bf3 AM |
1666 | } |
1667 | ||
1668 | return NULL; | |
1669 | } | |
1670 | ||
30667bf3 AM |
1671 | /* Update the got and plt entry reference counts for the section being |
1672 | removed. */ | |
edd21aca AM |
1673 | |
1674 | static boolean | |
30667bf3 AM |
1675 | elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs) |
1676 | bfd *abfd; | |
1677 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1678 | asection *sec; | |
1679 | const Elf_Internal_Rela *relocs; | |
edd21aca | 1680 | { |
30667bf3 AM |
1681 | Elf_Internal_Shdr *symtab_hdr; |
1682 | struct elf_link_hash_entry **sym_hashes; | |
1683 | bfd_signed_vma *local_got_refcounts; | |
74d1c347 | 1684 | bfd_signed_vma *local_plt_refcounts; |
30667bf3 AM |
1685 | const Elf_Internal_Rela *rel, *relend; |
1686 | unsigned long r_symndx; | |
1687 | struct elf_link_hash_entry *h; | |
83c81bfe | 1688 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 1689 | bfd *dynobj; |
30667bf3 | 1690 | |
ec338859 | 1691 | elf_section_data (sec)->local_dynrel = NULL; |
98ceb8ce | 1692 | |
30667bf3 AM |
1693 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1694 | sym_hashes = elf_sym_hashes (abfd); | |
1695 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
74d1c347 AM |
1696 | local_plt_refcounts = local_got_refcounts; |
1697 | if (local_plt_refcounts != NULL) | |
1698 | local_plt_refcounts += symtab_hdr->sh_info; | |
83c81bfe | 1699 | htab = hppa_link_hash_table (info); |
ebe50bae | 1700 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
1701 | if (dynobj == NULL) |
1702 | return true; | |
1703 | ||
30667bf3 AM |
1704 | relend = relocs + sec->reloc_count; |
1705 | for (rel = relocs; rel < relend; rel++) | |
1706 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1707 | { | |
1708 | case R_PARISC_DLTIND14F: | |
1709 | case R_PARISC_DLTIND14R: | |
1710 | case R_PARISC_DLTIND21L: | |
1711 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1712 | if (r_symndx >= symtab_hdr->sh_info) | |
1713 | { | |
1714 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1715 | if (h->got.refcount > 0) | |
4dc86686 | 1716 | h->got.refcount -= 1; |
30667bf3 AM |
1717 | } |
1718 | else if (local_got_refcounts != NULL) | |
1719 | { | |
1720 | if (local_got_refcounts[r_symndx] > 0) | |
4dc86686 | 1721 | local_got_refcounts[r_symndx] -= 1; |
30667bf3 AM |
1722 | } |
1723 | break; | |
edd21aca | 1724 | |
30667bf3 AM |
1725 | case R_PARISC_PCREL12F: |
1726 | case R_PARISC_PCREL17C: | |
1727 | case R_PARISC_PCREL17F: | |
1728 | case R_PARISC_PCREL22F: | |
1729 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1730 | if (r_symndx >= symtab_hdr->sh_info) | |
1731 | { | |
1732 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1733 | if (h->plt.refcount > 0) | |
1734 | h->plt.refcount -= 1; | |
1735 | } | |
1736 | break; | |
edd21aca | 1737 | |
74d1c347 AM |
1738 | case R_PARISC_PLABEL14R: |
1739 | case R_PARISC_PLABEL21L: | |
1740 | case R_PARISC_PLABEL32: | |
1741 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1742 | if (r_symndx >= symtab_hdr->sh_info) | |
1743 | { | |
98ceb8ce AM |
1744 | struct elf32_hppa_link_hash_entry *eh; |
1745 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1746 | struct elf32_hppa_dyn_reloc_entry *p; | |
1747 | ||
74d1c347 | 1748 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
98ceb8ce | 1749 | |
74d1c347 AM |
1750 | if (h->plt.refcount > 0) |
1751 | h->plt.refcount -= 1; | |
98ceb8ce AM |
1752 | |
1753 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1754 | ||
1755 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1756 | if (p->sec == sec) | |
1757 | { | |
1758 | #if RELATIVE_DYNRELOCS | |
1759 | if (!IS_ABSOLUTE_RELOC (rtype)) | |
1760 | p->relative_count -= 1; | |
1761 | #endif | |
1762 | p->count -= 1; | |
1763 | if (p->count == 0) | |
1764 | *pp = p->next; | |
1765 | break; | |
1766 | } | |
74d1c347 AM |
1767 | } |
1768 | else if (local_plt_refcounts != NULL) | |
1769 | { | |
1770 | if (local_plt_refcounts[r_symndx] > 0) | |
1771 | local_plt_refcounts[r_symndx] -= 1; | |
1772 | } | |
1773 | break; | |
1774 | ||
98ceb8ce AM |
1775 | case R_PARISC_DIR32: |
1776 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1777 | if (r_symndx >= symtab_hdr->sh_info) | |
1778 | { | |
1779 | struct elf32_hppa_link_hash_entry *eh; | |
1780 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1781 | struct elf32_hppa_dyn_reloc_entry *p; | |
1782 | ||
1783 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1784 | ||
1785 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1786 | ||
1787 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1788 | if (p->sec == sec) | |
1789 | { | |
1790 | #if RELATIVE_DYNRELOCS | |
1791 | if (!IS_ABSOLUTE_RELOC (R_PARISC_DIR32)) | |
1792 | p->relative_count -= 1; | |
1793 | #endif | |
1794 | p->count -= 1; | |
1795 | if (p->count == 0) | |
1796 | *pp = p->next; | |
1797 | break; | |
1798 | } | |
1799 | } | |
1800 | break; | |
1801 | ||
30667bf3 AM |
1802 | default: |
1803 | break; | |
1804 | } | |
252b5132 | 1805 | |
252b5132 RH |
1806 | return true; |
1807 | } | |
1808 | ||
74d1c347 AM |
1809 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1810 | plabels. */ | |
1811 | ||
1812 | static void | |
e5094212 AM |
1813 | elf32_hppa_hide_symbol (info, h, force_local) |
1814 | struct bfd_link_info *info; | |
74d1c347 | 1815 | struct elf_link_hash_entry *h; |
e5094212 | 1816 | boolean force_local; |
74d1c347 | 1817 | { |
e5094212 AM |
1818 | if (force_local) |
1819 | { | |
1820 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL; | |
1821 | if (h->dynindx != -1) | |
1822 | { | |
1823 | h->dynindx = -1; | |
1824 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
1825 | h->dynstr_index); | |
1826 | } | |
1827 | } | |
1828 | ||
74d1c347 AM |
1829 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel) |
1830 | { | |
1831 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1832 | h->plt.offset = (bfd_vma) -1; | |
1833 | } | |
1834 | } | |
1835 | ||
4dc86686 AM |
1836 | /* This is the condition under which elf32_hppa_finish_dynamic_symbol |
1837 | will be called from elflink.h. If elflink.h doesn't call our | |
1838 | finish_dynamic_symbol routine, we'll need to do something about | |
1839 | initializing any .plt and .got entries in elf32_hppa_relocate_section. */ | |
1840 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
1841 | ((DYN) \ | |
1842 | && ((INFO)->shared \ | |
1843 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
1844 | && ((H)->dynindx != -1 \ | |
1845 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
1846 | ||
30667bf3 AM |
1847 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1848 | regular object. The current definition is in some section of the | |
1849 | dynamic object, but we're not including those sections. We have to | |
1850 | change the definition to something the rest of the link can | |
1851 | understand. */ | |
252b5132 | 1852 | |
30667bf3 AM |
1853 | static boolean |
1854 | elf32_hppa_adjust_dynamic_symbol (info, h) | |
1855 | struct bfd_link_info *info; | |
1856 | struct elf_link_hash_entry *h; | |
252b5132 | 1857 | { |
83c81bfe | 1858 | struct elf32_hppa_link_hash_table *htab; |
ebe50bae AM |
1859 | struct elf32_hppa_link_hash_entry *eh; |
1860 | struct elf32_hppa_dyn_reloc_entry *p; | |
30667bf3 | 1861 | asection *s; |
3ac8354b | 1862 | unsigned int power_of_two; |
30667bf3 AM |
1863 | |
1864 | /* If this is a function, put it in the procedure linkage table. We | |
067fa4a6 | 1865 | will fill in the contents of the procedure linkage table later. */ |
30667bf3 AM |
1866 | if (h->type == STT_FUNC |
1867 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1868 | { | |
1869 | if (h->plt.refcount <= 0 | |
1870 | || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1871 | && h->root.type != bfd_link_hash_defweak | |
74d1c347 | 1872 | && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel |
30667bf3 AM |
1873 | && (!info->shared || info->symbolic))) |
1874 | { | |
1875 | /* The .plt entry is not needed when: | |
1876 | a) Garbage collection has removed all references to the | |
1877 | symbol, or | |
1878 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1879 | object, and it's not a weak definition, nor is the symbol |
1880 | used by a plabel relocation. Either this object is the | |
1881 | application or we are doing a shared symbolic link. */ | |
1882 | ||
1883 | /* As a special sop to the hppa ABI, we keep a .plt entry | |
1884 | for functions in sections containing PIC code. */ | |
067fa4a6 AM |
1885 | if (!info->shared |
1886 | && h->plt.refcount > 0 | |
1887 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1888 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0) | |
12cca0d2 | 1889 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
30667bf3 AM |
1890 | else |
1891 | { | |
1892 | h->plt.offset = (bfd_vma) -1; | |
1893 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
30667bf3 | 1894 | } |
30667bf3 | 1895 | } |
4dc86686 | 1896 | |
30667bf3 AM |
1897 | return true; |
1898 | } | |
bbd7ec4a AM |
1899 | else |
1900 | h->plt.offset = (bfd_vma) -1; | |
edd21aca | 1901 | |
30667bf3 AM |
1902 | /* If this is a weak symbol, and there is a real definition, the |
1903 | processor independent code will have arranged for us to see the | |
1904 | real definition first, and we can just use the same value. */ | |
1905 | if (h->weakdef != NULL) | |
edd21aca | 1906 | { |
49e9d0d3 AM |
1907 | if (h->weakdef->root.type != bfd_link_hash_defined |
1908 | && h->weakdef->root.type != bfd_link_hash_defweak) | |
1909 | abort (); | |
30667bf3 AM |
1910 | h->root.u.def.section = h->weakdef->root.u.def.section; |
1911 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
0a991dfe | 1912 | return true; |
30667bf3 | 1913 | } |
edd21aca | 1914 | |
30667bf3 AM |
1915 | /* This is a reference to a symbol defined by a dynamic object which |
1916 | is not a function. */ | |
1917 | ||
1918 | /* If we are creating a shared library, we must presume that the | |
1919 | only references to the symbol are via the global offset table. | |
1920 | For such cases we need not do anything here; the relocations will | |
1921 | be handled correctly by relocate_section. */ | |
1922 | if (info->shared) | |
1923 | return true; | |
1924 | ||
1925 | /* If there are no references to this symbol that do not use the | |
1926 | GOT, we don't need to generate a copy reloc. */ | |
1927 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
1928 | return true; | |
1929 | ||
ebe50bae AM |
1930 | eh = (struct elf32_hppa_link_hash_entry *) h; |
1931 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1932 | { | |
1933 | s = p->sec->output_section; | |
1934 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1935 | break; | |
1936 | } | |
1937 | ||
1938 | /* If we didn't find any dynamic relocs in read-only sections, then | |
46fe4e66 | 1939 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
ebe50bae AM |
1940 | if (p == NULL) |
1941 | { | |
1942 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
1943 | return true; | |
1944 | } | |
1945 | ||
30667bf3 AM |
1946 | /* We must allocate the symbol in our .dynbss section, which will |
1947 | become part of the .bss section of the executable. There will be | |
1948 | an entry for this symbol in the .dynsym section. The dynamic | |
1949 | object will contain position independent code, so all references | |
1950 | from the dynamic object to this symbol will go through the global | |
1951 | offset table. The dynamic linker will use the .dynsym entry to | |
1952 | determine the address it must put in the global offset table, so | |
1953 | both the dynamic object and the regular object will refer to the | |
1954 | same memory location for the variable. */ | |
1955 | ||
3ac8354b | 1956 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1957 | |
1958 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1959 | copy the initial value out of the dynamic object and into the | |
3ac8354b | 1960 | runtime process image. */ |
30667bf3 AM |
1961 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
1962 | { | |
3ac8354b | 1963 | htab->srelbss->_raw_size += sizeof (Elf32_External_Rela); |
30667bf3 | 1964 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
edd21aca | 1965 | } |
252b5132 | 1966 | |
3ac8354b AM |
1967 | /* We need to figure out the alignment required for this symbol. I |
1968 | have no idea how other ELF linkers handle this. */ | |
30667bf3 | 1969 | |
3ac8354b AM |
1970 | power_of_two = bfd_log2 (h->size); |
1971 | if (power_of_two > 3) | |
1972 | power_of_two = 3; | |
1973 | ||
1974 | /* Apply the required alignment. */ | |
1975 | s = htab->sdynbss; | |
1976 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1977 | (bfd_size_type) (1 << power_of_two)); | |
1978 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
1979 | { | |
1980 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) | |
1981 | return false; | |
1982 | } | |
30667bf3 | 1983 | |
30667bf3 AM |
1984 | /* Define the symbol as being at this point in the section. */ |
1985 | h->root.u.def.section = s; | |
1986 | h->root.u.def.value = s->_raw_size; | |
edd21aca | 1987 | |
30667bf3 AM |
1988 | /* Increment the section size to make room for the symbol. */ |
1989 | s->_raw_size += h->size; | |
252b5132 RH |
1990 | |
1991 | return true; | |
1992 | } | |
1993 | ||
30667bf3 AM |
1994 | /* Called via elf_link_hash_traverse to create .plt entries for an |
1995 | application that uses statically linked PIC functions. Similar to | |
1996 | the first part of elf32_hppa_adjust_dynamic_symbol. */ | |
252b5132 | 1997 | |
30667bf3 | 1998 | static boolean |
a8d02d66 | 1999 | mark_PIC_calls (h, inf) |
30667bf3 | 2000 | struct elf_link_hash_entry *h; |
4dc86686 | 2001 | PTR inf ATTRIBUTE_UNUSED; |
252b5132 | 2002 | { |
e92d460e AM |
2003 | if (h->root.type == bfd_link_hash_warning) |
2004 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2005 | ||
30667bf3 AM |
2006 | if (! (h->plt.refcount > 0 |
2007 | && (h->root.type == bfd_link_hash_defined | |
2008 | || h->root.type == bfd_link_hash_defweak) | |
2009 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)) | |
252b5132 | 2010 | { |
30667bf3 AM |
2011 | h->plt.offset = (bfd_vma) -1; |
2012 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2013 | return true; | |
252b5132 RH |
2014 | } |
2015 | ||
74d1c347 | 2016 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
30667bf3 | 2017 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
edd21aca | 2018 | |
4dc86686 AM |
2019 | return true; |
2020 | } | |
2021 | ||
e5ee5df1 AM |
2022 | /* Allocate space in the .plt for entries that won't have relocations. |
2023 | ie. pic_call and plabel entries. */ | |
a8d02d66 AM |
2024 | |
2025 | static boolean | |
e5ee5df1 | 2026 | allocate_plt_static (h, inf) |
a8d02d66 AM |
2027 | struct elf_link_hash_entry *h; |
2028 | PTR inf; | |
2029 | { | |
2030 | struct bfd_link_info *info; | |
2031 | struct elf32_hppa_link_hash_table *htab; | |
2032 | asection *s; | |
2033 | ||
e92d460e | 2034 | if (h->root.type == bfd_link_hash_indirect) |
a8d02d66 AM |
2035 | return true; |
2036 | ||
e92d460e AM |
2037 | if (h->root.type == bfd_link_hash_warning) |
2038 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2039 | ||
a8d02d66 AM |
2040 | info = (struct bfd_link_info *) inf; |
2041 | htab = hppa_link_hash_table (info); | |
2042 | if (((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2043 | { | |
e5ee5df1 AM |
2044 | /* Make an entry in the .plt section for non-pic code that is |
2045 | calling pic code. */ | |
067fa4a6 | 2046 | ((struct elf32_hppa_link_hash_entry *) h)->plabel = 0; |
a8d02d66 AM |
2047 | s = htab->splt; |
2048 | h->plt.offset = s->_raw_size; | |
e5ee5df1 AM |
2049 | s->_raw_size += PLT_ENTRY_SIZE; |
2050 | } | |
2051 | else if (htab->elf.dynamic_sections_created | |
2052 | && h->plt.refcount > 0) | |
2053 | { | |
2054 | /* Make sure this symbol is output as a dynamic symbol. | |
2055 | Undefined weak syms won't yet be marked as dynamic. */ | |
2056 | if (h->dynindx == -1 | |
2057 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2058 | && h->type != STT_PARISC_MILLI) | |
a8d02d66 | 2059 | { |
e5ee5df1 AM |
2060 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) |
2061 | return false; | |
2062 | } | |
2063 | ||
2064 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
2065 | { | |
067fa4a6 AM |
2066 | /* Allocate these later. From this point on, h->plabel |
2067 | means that the plt entry is only used by a plabel. | |
2068 | We'll be using a normal plt entry for this symbol, so | |
2069 | clear the plabel indicator. */ | |
2070 | ((struct elf32_hppa_link_hash_entry *) h)->plabel = 0; | |
e5ee5df1 AM |
2071 | } |
2072 | else if (((struct elf32_hppa_link_hash_entry *) h)->plabel) | |
2073 | { | |
2074 | /* Make an entry in the .plt section for plabel references | |
2075 | that won't have a .plt entry for other reasons. */ | |
2076 | s = htab->splt; | |
2077 | h->plt.offset = s->_raw_size; | |
2078 | s->_raw_size += PLT_ENTRY_SIZE; | |
a8d02d66 AM |
2079 | } |
2080 | else | |
e5ee5df1 AM |
2081 | { |
2082 | /* No .plt entry needed. */ | |
2083 | h->plt.offset = (bfd_vma) -1; | |
2084 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2085 | } | |
2086 | } | |
2087 | else | |
2088 | { | |
2089 | h->plt.offset = (bfd_vma) -1; | |
2090 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
a8d02d66 AM |
2091 | } |
2092 | ||
2093 | return true; | |
2094 | } | |
2095 | ||
4dc86686 AM |
2096 | /* Allocate space in .plt, .got and associated reloc sections for |
2097 | global syms. */ | |
2098 | ||
2099 | static boolean | |
98ceb8ce | 2100 | allocate_dynrelocs (h, inf) |
4dc86686 AM |
2101 | struct elf_link_hash_entry *h; |
2102 | PTR inf; | |
2103 | { | |
2104 | struct bfd_link_info *info; | |
83c81bfe | 2105 | struct elf32_hppa_link_hash_table *htab; |
4dc86686 | 2106 | asection *s; |
446f2863 | 2107 | struct elf32_hppa_link_hash_entry *eh; |
98ceb8ce | 2108 | struct elf32_hppa_dyn_reloc_entry *p; |
4dc86686 | 2109 | |
e92d460e | 2110 | if (h->root.type == bfd_link_hash_indirect) |
73a74a62 AM |
2111 | return true; |
2112 | ||
e92d460e AM |
2113 | if (h->root.type == bfd_link_hash_warning) |
2114 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2115 | ||
30667bf3 | 2116 | info = (struct bfd_link_info *) inf; |
83c81bfe | 2117 | htab = hppa_link_hash_table (info); |
e5ee5df1 AM |
2118 | if (htab->elf.dynamic_sections_created |
2119 | && h->plt.offset != (bfd_vma) -1 | |
2120 | && !((struct elf32_hppa_link_hash_entry *) h)->pic_call | |
067fa4a6 | 2121 | && !((struct elf32_hppa_link_hash_entry *) h)->plabel) |
4dc86686 | 2122 | { |
e5ee5df1 AM |
2123 | /* Make an entry in the .plt section. */ |
2124 | s = htab->splt; | |
2125 | h->plt.offset = s->_raw_size; | |
2126 | s->_raw_size += PLT_ENTRY_SIZE; | |
3ac8354b | 2127 | |
e5ee5df1 AM |
2128 | /* We also need to make an entry in the .rela.plt section. */ |
2129 | htab->srelplt->_raw_size += sizeof (Elf32_External_Rela); | |
2130 | htab->need_plt_stub = 1; | |
4dc86686 | 2131 | } |
edd21aca | 2132 | |
4dc86686 AM |
2133 | if (h->got.refcount > 0) |
2134 | { | |
446f2863 AM |
2135 | /* Make sure this symbol is output as a dynamic symbol. |
2136 | Undefined weak syms won't yet be marked as dynamic. */ | |
2137 | if (h->dynindx == -1 | |
2138 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2139 | && h->type != STT_PARISC_MILLI) | |
2140 | { | |
2141 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2142 | return false; | |
2143 | } | |
2144 | ||
83c81bfe | 2145 | s = htab->sgot; |
4dc86686 AM |
2146 | h->got.offset = s->_raw_size; |
2147 | s->_raw_size += GOT_ENTRY_SIZE; | |
ce757d15 AM |
2148 | if (htab->elf.dynamic_sections_created |
2149 | && (info->shared | |
2150 | || (h->dynindx != -1 | |
2151 | && h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)) | |
2152 | { | |
2153 | htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
2154 | } | |
4dc86686 AM |
2155 | } |
2156 | else | |
2157 | h->got.offset = (bfd_vma) -1; | |
30667bf3 | 2158 | |
446f2863 | 2159 | eh = (struct elf32_hppa_link_hash_entry *) h; |
98ceb8ce | 2160 | if (eh->dyn_relocs == NULL) |
446f2863 | 2161 | return true; |
30667bf3 | 2162 | |
98ceb8ce AM |
2163 | /* If this is a -Bsymbolic shared link, then we need to discard all |
2164 | space allocated for dynamic pc-relative relocs against symbols | |
2165 | defined in a regular object. For the normal shared case, discard | |
2166 | space for relocs that have become local due to symbol visibility | |
2167 | changes. */ | |
2168 | if (info->shared) | |
446f2863 | 2169 | { |
98ceb8ce AM |
2170 | #if RELATIVE_DYNRELOCS |
2171 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
2172 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
2173 | || info->symbolic)) | |
446f2863 | 2174 | { |
98ceb8ce | 2175 | struct elf32_hppa_dyn_reloc_entry **pp; |
30667bf3 | 2176 | |
98ceb8ce AM |
2177 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
2178 | { | |
2179 | p->count -= p->relative_count; | |
2180 | p->relative_count = 0; | |
2181 | if (p->count == 0) | |
2182 | *pp = p->next; | |
2183 | else | |
2184 | pp = &p->next; | |
2185 | } | |
2186 | } | |
2187 | #endif | |
446f2863 | 2188 | } |
98ceb8ce | 2189 | else |
30667bf3 | 2190 | { |
98ceb8ce AM |
2191 | /* For the non-shared case, discard space for relocs against |
2192 | symbols which turn out to need copy relocs or are not | |
2193 | dynamic. */ | |
2194 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
2195 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2196 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
ebe50bae | 2197 | || (htab->elf.dynamic_sections_created |
98ceb8ce AM |
2198 | && (h->root.type == bfd_link_hash_undefweak |
2199 | || h->root.type == bfd_link_hash_undefined)))) | |
2200 | { | |
2201 | /* Make sure this symbol is output as a dynamic symbol. | |
2202 | Undefined weak syms won't yet be marked as dynamic. */ | |
2203 | if (h->dynindx == -1 | |
2204 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2205 | && h->type != STT_PARISC_MILLI) | |
2206 | { | |
2207 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2208 | return false; | |
2209 | } | |
2210 | ||
2211 | /* If that succeeded, we know we'll be keeping all the | |
2212 | relocs. */ | |
2213 | if (h->dynindx != -1) | |
2214 | goto keep; | |
2215 | } | |
446f2863 | 2216 | |
98ceb8ce AM |
2217 | eh->dyn_relocs = NULL; |
2218 | return true; | |
2219 | ||
ec338859 | 2220 | keep: ; |
30667bf3 | 2221 | } |
30667bf3 | 2222 | |
98ceb8ce AM |
2223 | /* Finally, allocate space. */ |
2224 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
30667bf3 | 2225 | { |
98ceb8ce AM |
2226 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
2227 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2228 | } |
30667bf3 AM |
2229 | |
2230 | return true; | |
2231 | } | |
30667bf3 | 2232 | |
d5c73c2f AM |
2233 | /* This function is called via elf_link_hash_traverse to force |
2234 | millicode symbols local so they do not end up as globals in the | |
2235 | dynamic symbol table. We ought to be able to do this in | |
2236 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2237 | for all dynamic symbols. Arguably, this is a bug in | |
2238 | elf_adjust_dynamic_symbol. */ | |
2239 | ||
2240 | static boolean | |
2241 | clobber_millicode_symbols (h, info) | |
2242 | struct elf_link_hash_entry *h; | |
2243 | struct bfd_link_info *info; | |
2244 | { | |
e92d460e AM |
2245 | if (h->root.type == bfd_link_hash_warning) |
2246 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2247 | ||
142f8c94 AM |
2248 | if (h->type == STT_PARISC_MILLI |
2249 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
e0522e89 | 2250 | { |
e5094212 | 2251 | elf32_hppa_hide_symbol (info, h, true); |
e0522e89 | 2252 | } |
d5c73c2f AM |
2253 | return true; |
2254 | } | |
2255 | ||
98ceb8ce AM |
2256 | /* Find any dynamic relocs that apply to read-only sections. */ |
2257 | ||
2258 | static boolean | |
2259 | readonly_dynrelocs (h, inf) | |
2260 | struct elf_link_hash_entry *h; | |
2261 | PTR inf; | |
2262 | { | |
2263 | struct elf32_hppa_link_hash_entry *eh; | |
2264 | struct elf32_hppa_dyn_reloc_entry *p; | |
2265 | ||
e92d460e AM |
2266 | if (h->root.type == bfd_link_hash_warning) |
2267 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2268 | ||
98ceb8ce AM |
2269 | eh = (struct elf32_hppa_link_hash_entry *) h; |
2270 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2271 | { | |
2272 | asection *s = p->sec->output_section; | |
2273 | ||
2274 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2275 | { | |
2276 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2277 | ||
2278 | info->flags |= DF_TEXTREL; | |
2279 | ||
2280 | /* Not an error, just cut short the traversal. */ | |
2281 | return false; | |
2282 | } | |
2283 | } | |
2284 | return true; | |
2285 | } | |
2286 | ||
30667bf3 AM |
2287 | /* Set the sizes of the dynamic sections. */ |
2288 | ||
2289 | static boolean | |
2290 | elf32_hppa_size_dynamic_sections (output_bfd, info) | |
98ceb8ce | 2291 | bfd *output_bfd ATTRIBUTE_UNUSED; |
30667bf3 AM |
2292 | struct bfd_link_info *info; |
2293 | { | |
83c81bfe | 2294 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2295 | bfd *dynobj; |
98ceb8ce | 2296 | bfd *ibfd; |
30667bf3 AM |
2297 | asection *s; |
2298 | boolean relocs; | |
30667bf3 | 2299 | |
83c81bfe | 2300 | htab = hppa_link_hash_table (info); |
ebe50bae | 2301 | dynobj = htab->elf.dynobj; |
49e9d0d3 AM |
2302 | if (dynobj == NULL) |
2303 | abort (); | |
30667bf3 | 2304 | |
ebe50bae | 2305 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2306 | { |
2307 | /* Set the contents of the .interp section to the interpreter. */ | |
2308 | if (! info->shared) | |
2309 | { | |
2310 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
49e9d0d3 AM |
2311 | if (s == NULL) |
2312 | abort (); | |
30667bf3 AM |
2313 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; |
2314 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2315 | } | |
74d1c347 | 2316 | |
d5c73c2f | 2317 | /* Force millicode symbols local. */ |
ebe50bae | 2318 | elf_link_hash_traverse (&htab->elf, |
d5c73c2f AM |
2319 | clobber_millicode_symbols, |
2320 | info); | |
68fb2e56 AM |
2321 | } |
2322 | else | |
2323 | { | |
2324 | /* Run through the function symbols, looking for any that are | |
a8d02d66 AM |
2325 | PIC, and mark them as needing .plt entries so that %r19 will |
2326 | be set up. */ | |
68fb2e56 | 2327 | if (! info->shared) |
a8d02d66 | 2328 | elf_link_hash_traverse (&htab->elf, mark_PIC_calls, (PTR) info); |
68fb2e56 | 2329 | } |
d5c73c2f | 2330 | |
98ceb8ce AM |
2331 | /* Set up .got and .plt offsets for local syms, and space for local |
2332 | dynamic relocs. */ | |
2333 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
68fb2e56 AM |
2334 | { |
2335 | bfd_signed_vma *local_got; | |
2336 | bfd_signed_vma *end_local_got; | |
2337 | bfd_signed_vma *local_plt; | |
2338 | bfd_signed_vma *end_local_plt; | |
2339 | bfd_size_type locsymcount; | |
2340 | Elf_Internal_Shdr *symtab_hdr; | |
2341 | asection *srel; | |
74d1c347 | 2342 | |
98ceb8ce | 2343 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2344 | continue; |
4dc86686 | 2345 | |
98ceb8ce AM |
2346 | for (s = ibfd->sections; s != NULL; s = s->next) |
2347 | { | |
ec338859 | 2348 | struct elf32_hppa_dyn_reloc_entry *p; |
98ceb8ce | 2349 | |
ec338859 AM |
2350 | for (p = ((struct elf32_hppa_dyn_reloc_entry *) |
2351 | elf_section_data (s)->local_dynrel); | |
2352 | p != NULL; | |
2353 | p = p->next) | |
98ceb8ce | 2354 | { |
ec338859 AM |
2355 | if (!bfd_is_abs_section (p->sec) |
2356 | && bfd_is_abs_section (p->sec->output_section)) | |
2357 | { | |
2358 | /* Input section has been discarded, either because | |
2359 | it is a copy of a linkonce section or due to | |
2360 | linker script /DISCARD/, so we'll be discarding | |
2361 | the relocs too. */ | |
2362 | } | |
248866a8 | 2363 | else if (p->count != 0) |
ec338859 AM |
2364 | { |
2365 | srel = elf_section_data (p->sec)->sreloc; | |
2366 | srel->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
248866a8 AM |
2367 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
2368 | info->flags |= DF_TEXTREL; | |
ec338859 | 2369 | } |
98ceb8ce AM |
2370 | } |
2371 | } | |
2372 | ||
2373 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2374 | if (!local_got) |
2375 | continue; | |
74d1c347 | 2376 | |
98ceb8ce | 2377 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2378 | locsymcount = symtab_hdr->sh_info; |
2379 | end_local_got = local_got + locsymcount; | |
83c81bfe AM |
2380 | s = htab->sgot; |
2381 | srel = htab->srelgot; | |
68fb2e56 AM |
2382 | for (; local_got < end_local_got; ++local_got) |
2383 | { | |
2384 | if (*local_got > 0) | |
4dc86686 | 2385 | { |
68fb2e56 AM |
2386 | *local_got = s->_raw_size; |
2387 | s->_raw_size += GOT_ENTRY_SIZE; | |
2388 | if (info->shared) | |
2389 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
4dc86686 | 2390 | } |
68fb2e56 AM |
2391 | else |
2392 | *local_got = (bfd_vma) -1; | |
2393 | } | |
74d1c347 | 2394 | |
68fb2e56 AM |
2395 | local_plt = end_local_got; |
2396 | end_local_plt = local_plt + locsymcount; | |
ebe50bae | 2397 | if (! htab->elf.dynamic_sections_created) |
68fb2e56 AM |
2398 | { |
2399 | /* Won't be used, but be safe. */ | |
2400 | for (; local_plt < end_local_plt; ++local_plt) | |
2401 | *local_plt = (bfd_vma) -1; | |
2402 | } | |
2403 | else | |
2404 | { | |
83c81bfe AM |
2405 | s = htab->splt; |
2406 | srel = htab->srelplt; | |
74d1c347 AM |
2407 | for (; local_plt < end_local_plt; ++local_plt) |
2408 | { | |
2409 | if (*local_plt > 0) | |
2410 | { | |
74d1c347 AM |
2411 | *local_plt = s->_raw_size; |
2412 | s->_raw_size += PLT_ENTRY_SIZE; | |
2413 | if (info->shared) | |
4dc86686 | 2414 | srel->_raw_size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2415 | } |
2416 | else | |
2417 | *local_plt = (bfd_vma) -1; | |
2418 | } | |
2419 | } | |
30667bf3 | 2420 | } |
30667bf3 | 2421 | |
e5ee5df1 AM |
2422 | /* Do all the .plt entries without relocs first. The dynamic linker |
2423 | uses the last .plt reloc to find the end of the .plt (and hence | |
2424 | the start of the .got) for lazy linking. */ | |
2425 | elf_link_hash_traverse (&htab->elf, allocate_plt_static, (PTR) info); | |
a8d02d66 | 2426 | |
98ceb8ce AM |
2427 | /* Allocate global sym .plt and .got entries, and space for global |
2428 | sym dynamic relocs. */ | |
ebe50bae | 2429 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); |
30667bf3 AM |
2430 | |
2431 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2432 | determined the sizes of the various dynamic sections. Allocate | |
2433 | memory for them. */ | |
2434 | relocs = false; | |
30667bf3 AM |
2435 | for (s = dynobj->sections; s != NULL; s = s->next) |
2436 | { | |
30667bf3 AM |
2437 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2438 | continue; | |
2439 | ||
83c81bfe | 2440 | if (s == htab->splt) |
68fb2e56 | 2441 | { |
83c81bfe | 2442 | if (htab->need_plt_stub) |
68fb2e56 AM |
2443 | { |
2444 | /* Make space for the plt stub at the end of the .plt | |
2445 | section. We want this stub right at the end, up | |
2446 | against the .got section. */ | |
83c81bfe | 2447 | int gotalign = bfd_section_alignment (dynobj, htab->sgot); |
68fb2e56 AM |
2448 | int pltalign = bfd_section_alignment (dynobj, s); |
2449 | bfd_size_type mask; | |
30667bf3 | 2450 | |
68fb2e56 AM |
2451 | if (gotalign > pltalign) |
2452 | bfd_set_section_alignment (dynobj, s, gotalign); | |
2453 | mask = ((bfd_size_type) 1 << gotalign) - 1; | |
2454 | s->_raw_size = (s->_raw_size + sizeof (plt_stub) + mask) & ~mask; | |
2455 | } | |
2456 | } | |
83c81bfe | 2457 | else if (s == htab->sgot) |
68fb2e56 AM |
2458 | ; |
2459 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) | |
30667bf3 AM |
2460 | { |
2461 | if (s->_raw_size != 0) | |
2462 | { | |
4e12ff7f AM |
2463 | /* Remember whether there are any reloc sections other |
2464 | than .rela.plt. */ | |
2465 | if (s != htab->srelplt) | |
2466 | relocs = true; | |
47d89dba | 2467 | |
30667bf3 AM |
2468 | /* We use the reloc_count field as a counter if we need |
2469 | to copy relocs into the output file. */ | |
2470 | s->reloc_count = 0; | |
2471 | } | |
2472 | } | |
30667bf3 AM |
2473 | else |
2474 | { | |
2475 | /* It's not one of our sections, so don't allocate space. */ | |
2476 | continue; | |
2477 | } | |
2478 | ||
2479 | if (s->_raw_size == 0) | |
2480 | { | |
2481 | /* If we don't need this section, strip it from the | |
2482 | output file. This is mostly to handle .rela.bss and | |
2483 | .rela.plt. We must create both sections in | |
2484 | create_dynamic_sections, because they must be created | |
2485 | before the linker maps input sections to output | |
2486 | sections. The linker does that before | |
2487 | adjust_dynamic_symbol is called, and it is that | |
2488 | function which decides whether anything needs to go | |
2489 | into these sections. */ | |
2490 | _bfd_strip_section_from_output (info, s); | |
2491 | continue; | |
2492 | } | |
2493 | ||
2494 | /* Allocate memory for the section contents. Zero it, because | |
2495 | we may not fill in all the reloc sections. */ | |
2496 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); | |
2497 | if (s->contents == NULL && s->_raw_size != 0) | |
2498 | return false; | |
2499 | } | |
2500 | ||
ebe50bae | 2501 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2502 | { |
2503 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2504 | actually has nothing to do with the PLT, it is how we | |
2505 | communicate the LTP value of a load module to the dynamic | |
2506 | linker. */ | |
dc810e39 AM |
2507 | #define add_dynamic_entry(TAG, VAL) \ |
2508 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
2509 | ||
2510 | if (!add_dynamic_entry (DT_PLTGOT, 0)) | |
30667bf3 AM |
2511 | return false; |
2512 | ||
2513 | /* Add some entries to the .dynamic section. We fill in the | |
2514 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2515 | must add the entries now so that we get the correct size for | |
2516 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2517 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2518 | if (!info->shared) |
30667bf3 | 2519 | { |
dc810e39 | 2520 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
30667bf3 AM |
2521 | return false; |
2522 | } | |
2523 | ||
83c81bfe | 2524 | if (htab->srelplt->_raw_size != 0) |
30667bf3 | 2525 | { |
dc810e39 AM |
2526 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
2527 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2528 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
30667bf3 AM |
2529 | return false; |
2530 | } | |
2531 | ||
2532 | if (relocs) | |
2533 | { | |
dc810e39 AM |
2534 | if (!add_dynamic_entry (DT_RELA, 0) |
2535 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2536 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
30667bf3 | 2537 | return false; |
30667bf3 | 2538 | |
98ceb8ce AM |
2539 | /* If any dynamic relocs apply to a read-only section, |
2540 | then we need a DT_TEXTREL entry. */ | |
248866a8 AM |
2541 | if ((info->flags & DF_TEXTREL) == 0) |
2542 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
2543 | (PTR) info); | |
98ceb8ce AM |
2544 | |
2545 | if ((info->flags & DF_TEXTREL) != 0) | |
2546 | { | |
2547 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
2548 | return false; | |
2549 | } | |
30667bf3 AM |
2550 | } |
2551 | } | |
dc810e39 | 2552 | #undef add_dynamic_entry |
30667bf3 AM |
2553 | |
2554 | return true; | |
2555 | } | |
2556 | ||
30667bf3 AM |
2557 | /* External entry points for sizing and building linker stubs. */ |
2558 | ||
b4655ea9 AM |
2559 | /* Set up various things so that we can make a list of input sections |
2560 | for each output section included in the link. Returns -1 on error, | |
2561 | 0 when no stubs will be needed, and 1 on success. */ | |
30667bf3 | 2562 | |
b4655ea9 AM |
2563 | int |
2564 | elf32_hppa_setup_section_lists (output_bfd, info) | |
25f72752 | 2565 | bfd *output_bfd; |
30667bf3 | 2566 | struct bfd_link_info *info; |
30667bf3 AM |
2567 | { |
2568 | bfd *input_bfd; | |
b4655ea9 AM |
2569 | unsigned int bfd_count; |
2570 | int top_id, top_index; | |
30667bf3 | 2571 | asection *section; |
25f72752 | 2572 | asection **input_list, **list; |
dc810e39 | 2573 | bfd_size_type amt; |
b4655ea9 | 2574 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
30667bf3 | 2575 | |
b4655ea9 AM |
2576 | if (htab->elf.root.creator->flavour != bfd_target_elf_flavour) |
2577 | return 0; | |
30667bf3 | 2578 | |
1badb539 AM |
2579 | /* Count the number of input BFDs and find the top input section id. */ |
2580 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2581 | input_bfd != NULL; |
2582 | input_bfd = input_bfd->link_next) | |
2583 | { | |
2584 | bfd_count += 1; | |
25f72752 AM |
2585 | for (section = input_bfd->sections; |
2586 | section != NULL; | |
2587 | section = section->next) | |
2588 | { | |
2589 | if (top_id < section->id) | |
2590 | top_id = section->id; | |
2591 | } | |
30667bf3 | 2592 | } |
b4655ea9 | 2593 | htab->bfd_count = bfd_count; |
30667bf3 | 2594 | |
dc810e39 | 2595 | amt = sizeof (struct map_stub) * (top_id + 1); |
83c81bfe AM |
2596 | htab->stub_group = (struct map_stub *) bfd_zmalloc (amt); |
2597 | if (htab->stub_group == NULL) | |
b4655ea9 | 2598 | return -1; |
1badb539 | 2599 | |
b4655ea9 | 2600 | /* We can't use output_bfd->section_count here to find the top output |
1badb539 AM |
2601 | section index as some sections may have been removed, and |
2602 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
2603 | for (section = output_bfd->sections, top_index = 0; | |
2604 | section != NULL; | |
2605 | section = section->next) | |
2606 | { | |
2607 | if (top_index < section->index) | |
2608 | top_index = section->index; | |
2609 | } | |
2610 | ||
b4655ea9 | 2611 | htab->top_index = top_index; |
dc810e39 AM |
2612 | amt = sizeof (asection *) * (top_index + 1); |
2613 | input_list = (asection **) bfd_malloc (amt); | |
b4655ea9 | 2614 | htab->input_list = input_list; |
25f72752 | 2615 | if (input_list == NULL) |
b4655ea9 | 2616 | return -1; |
25f72752 | 2617 | |
1badb539 AM |
2618 | /* For sections we aren't interested in, mark their entries with a |
2619 | value we can check later. */ | |
2620 | list = input_list + top_index; | |
2621 | do | |
2622 | *list = bfd_abs_section_ptr; | |
2623 | while (list-- != input_list); | |
2624 | ||
2625 | for (section = output_bfd->sections; | |
2626 | section != NULL; | |
2627 | section = section->next) | |
2628 | { | |
47d89dba | 2629 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2630 | input_list[section->index] = NULL; |
2631 | } | |
2632 | ||
b4655ea9 AM |
2633 | return 1; |
2634 | } | |
2635 | ||
2636 | /* The linker repeatedly calls this function for each input section, | |
2637 | in the order that input sections are linked into output sections. | |
2638 | Build lists of input sections to determine groupings between which | |
2639 | we may insert linker stubs. */ | |
2640 | ||
2641 | void | |
2642 | elf32_hppa_next_input_section (info, isec) | |
2643 | struct bfd_link_info *info; | |
2644 | asection *isec; | |
2645 | { | |
2646 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
2647 | ||
2648 | if (isec->output_section->index <= htab->top_index) | |
25f72752 | 2649 | { |
b4655ea9 AM |
2650 | asection **list = htab->input_list + isec->output_section->index; |
2651 | if (*list != bfd_abs_section_ptr) | |
25f72752 | 2652 | { |
b4655ea9 | 2653 | /* Steal the link_sec pointer for our list. */ |
83c81bfe | 2654 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
b4655ea9 AM |
2655 | /* This happens to make the list in reverse order, |
2656 | which is what we want. */ | |
2657 | PREV_SEC (isec) = *list; | |
2658 | *list = isec; | |
25f72752 AM |
2659 | } |
2660 | } | |
b4655ea9 | 2661 | } |
25f72752 | 2662 | |
b4655ea9 AM |
2663 | /* See whether we can group stub sections together. Grouping stub |
2664 | sections may result in fewer stubs. More importantly, we need to | |
2665 | put all .init* and .fini* stubs at the beginning of the .init or | |
2666 | .fini output sections respectively, because glibc splits the | |
2667 | _init and _fini functions into multiple parts. Putting a stub in | |
2668 | the middle of a function is not a good idea. */ | |
2669 | ||
2670 | static void | |
2671 | group_sections (htab, stub_group_size, stubs_always_before_branch) | |
2672 | struct elf32_hppa_link_hash_table *htab; | |
2673 | bfd_size_type stub_group_size; | |
2674 | boolean stubs_always_before_branch; | |
2675 | { | |
2676 | asection **list = htab->input_list + htab->top_index; | |
1badb539 | 2677 | do |
25f72752 AM |
2678 | { |
2679 | asection *tail = *list; | |
1badb539 AM |
2680 | if (tail == bfd_abs_section_ptr) |
2681 | continue; | |
25f72752 AM |
2682 | while (tail != NULL) |
2683 | { | |
2684 | asection *curr; | |
2685 | asection *prev; | |
2686 | bfd_size_type total; | |
2687 | ||
2688 | curr = tail; | |
2689 | if (tail->_cooked_size) | |
2690 | total = tail->_cooked_size; | |
2691 | else | |
2692 | total = tail->_raw_size; | |
2693 | while ((prev = PREV_SEC (curr)) != NULL | |
2694 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2695 | < stub_group_size)) |
25f72752 AM |
2696 | curr = prev; |
2697 | ||
2698 | /* OK, the size from the start of CURR to the end is less | |
a248e267 | 2699 | than 240000 bytes and thus can be handled by one stub |
25f72752 | 2700 | section. (or the tail section is itself larger than |
a248e267 | 2701 | 240000 bytes, in which case we may be toast.) |
25f72752 AM |
2702 | We should really be keeping track of the total size of |
2703 | stubs added here, as stubs contribute to the final output | |
2704 | section size. That's a little tricky, and this way will | |
a248e267 AM |
2705 | only break if stubs added total more than 22144 bytes, or |
2706 | 2768 long branch stubs. It seems unlikely for more than | |
2707 | 2768 different functions to be called, especially from | |
2708 | code only 240000 bytes long. This limit used to be | |
2709 | 250000, but c++ code tends to generate lots of little | |
2710 | functions, and sometimes violated the assumption. */ | |
25f72752 AM |
2711 | do |
2712 | { | |
2713 | prev = PREV_SEC (tail); | |
2714 | /* Set up this stub group. */ | |
83c81bfe | 2715 | htab->stub_group[tail->id].link_sec = curr; |
25f72752 AM |
2716 | } |
2717 | while (tail != curr && (tail = prev) != NULL); | |
2718 | ||
a248e267 | 2719 | /* But wait, there's more! Input sections up to 240000 |
25f72752 | 2720 | bytes before the stub section can be handled by it too. */ |
47d89dba | 2721 | if (!stubs_always_before_branch) |
25f72752 | 2722 | { |
47d89dba AM |
2723 | total = 0; |
2724 | while (prev != NULL | |
2725 | && ((total += tail->output_offset - prev->output_offset) | |
2726 | < stub_group_size)) | |
2727 | { | |
2728 | tail = prev; | |
2729 | prev = PREV_SEC (tail); | |
83c81bfe | 2730 | htab->stub_group[tail->id].link_sec = curr; |
47d89dba | 2731 | } |
25f72752 AM |
2732 | } |
2733 | tail = prev; | |
2734 | } | |
2735 | } | |
b4655ea9 AM |
2736 | while (list-- != htab->input_list); |
2737 | free (htab->input_list); | |
1badb539 | 2738 | #undef PREV_SEC |
b4655ea9 AM |
2739 | } |
2740 | ||
2741 | /* Read in all local syms for all input bfds, and create hash entries | |
2742 | for export stubs if we are building a multi-subspace shared lib. | |
2743 | Returns -1 on error, 1 if export stubs created, 0 otherwise. */ | |
2744 | ||
2745 | static int | |
2746 | get_local_syms (output_bfd, input_bfd, info) | |
2747 | bfd *output_bfd; | |
2748 | bfd *input_bfd; | |
2749 | struct bfd_link_info *info; | |
2750 | { | |
2751 | unsigned int bfd_indx; | |
2752 | Elf_Internal_Sym *local_syms, **all_local_syms; | |
2753 | int stub_changed = 0; | |
2754 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
30667bf3 AM |
2755 | |
2756 | /* We want to read in symbol extension records only once. To do this | |
2757 | we need to read in the local symbols in parallel and save them for | |
2758 | later use; so hold pointers to the local symbols in an array. */ | |
b4655ea9 | 2759 | bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count; |
dc810e39 | 2760 | all_local_syms = (Elf_Internal_Sym **) bfd_zmalloc (amt); |
b4655ea9 | 2761 | htab->all_local_syms = all_local_syms; |
30667bf3 | 2762 | if (all_local_syms == NULL) |
b4655ea9 | 2763 | return -1; |
30667bf3 AM |
2764 | |
2765 | /* Walk over all the input BFDs, swapping in local symbols. | |
2766 | If we are creating a shared library, create hash entries for the | |
2767 | export stubs. */ | |
b4655ea9 | 2768 | for (bfd_indx = 0; |
30667bf3 | 2769 | input_bfd != NULL; |
25f72752 | 2770 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2771 | { |
2772 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 2773 | Elf_Internal_Shdr *shndx_hdr; |
30667bf3 | 2774 | Elf_Internal_Sym *isym; |
25f72752 | 2775 | Elf32_External_Sym *ext_syms, *esym, *end_sy; |
9ad5cbcf | 2776 | Elf_External_Sym_Shndx *shndx_buf, *shndx; |
dc810e39 | 2777 | bfd_size_type sec_size; |
edd21aca | 2778 | |
252b5132 RH |
2779 | /* We'll need the symbol table in a second. */ |
2780 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2781 | if (symtab_hdr->sh_info == 0) | |
2782 | continue; | |
2783 | ||
edd21aca AM |
2784 | /* We need an array of the local symbols attached to the input bfd. |
2785 | Unfortunately, we're going to have to read & swap them in. */ | |
dc810e39 AM |
2786 | sec_size = symtab_hdr->sh_info; |
2787 | sec_size *= sizeof (Elf_Internal_Sym); | |
2788 | local_syms = (Elf_Internal_Sym *) bfd_malloc (sec_size); | |
edd21aca | 2789 | if (local_syms == NULL) |
b4655ea9 | 2790 | return -1; |
9ad5cbcf | 2791 | |
25f72752 | 2792 | all_local_syms[bfd_indx] = local_syms; |
dc810e39 AM |
2793 | sec_size = symtab_hdr->sh_info; |
2794 | sec_size *= sizeof (Elf32_External_Sym); | |
2795 | ext_syms = (Elf32_External_Sym *) bfd_malloc (sec_size); | |
edd21aca | 2796 | if (ext_syms == NULL) |
b4655ea9 | 2797 | return -1; |
edd21aca AM |
2798 | |
2799 | if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
9ad5cbcf | 2800 | || bfd_bread ((PTR) ext_syms, sec_size, input_bfd) != sec_size) |
edd21aca | 2801 | { |
9ad5cbcf | 2802 | error_ret_free_ext_syms: |
edd21aca | 2803 | free (ext_syms); |
b4655ea9 | 2804 | return -1; |
edd21aca AM |
2805 | } |
2806 | ||
9ad5cbcf AM |
2807 | shndx_buf = NULL; |
2808 | shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr; | |
2809 | if (shndx_hdr->sh_size != 0) | |
2810 | { | |
2811 | sec_size = symtab_hdr->sh_info; | |
2812 | sec_size *= sizeof (Elf_External_Sym_Shndx); | |
2813 | shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (sec_size); | |
2814 | if (shndx_buf == NULL) | |
2815 | goto error_ret_free_ext_syms; | |
2816 | ||
2817 | if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0 | |
2818 | || bfd_bread ((PTR) shndx_buf, sec_size, input_bfd) != sec_size) | |
2819 | { | |
2820 | free (shndx_buf); | |
2821 | goto error_ret_free_ext_syms; | |
2822 | } | |
2823 | } | |
2824 | ||
edd21aca | 2825 | /* Swap the local symbols in. */ |
9ad5cbcf AM |
2826 | for (esym = ext_syms, end_sy = esym + symtab_hdr->sh_info, |
2827 | isym = local_syms, shndx = shndx_buf; | |
2828 | esym < end_sy; | |
2829 | esym++, isym++, shndx = (shndx ? shndx + 1 : NULL)) | |
2830 | bfd_elf32_swap_symbol_in (input_bfd, esym, shndx, isym); | |
edd21aca AM |
2831 | |
2832 | /* Now we can free the external symbols. */ | |
9ad5cbcf | 2833 | free (shndx_buf); |
edd21aca | 2834 | free (ext_syms); |
edd21aca | 2835 | |
83c81bfe | 2836 | if (info->shared && htab->multi_subspace) |
30667bf3 | 2837 | { |
25f72752 AM |
2838 | struct elf_link_hash_entry **sym_hashes; |
2839 | struct elf_link_hash_entry **end_hashes; | |
30667bf3 AM |
2840 | unsigned int symcount; |
2841 | ||
2842 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2843 | - symtab_hdr->sh_info); | |
25f72752 AM |
2844 | sym_hashes = elf_sym_hashes (input_bfd); |
2845 | end_hashes = sym_hashes + symcount; | |
30667bf3 AM |
2846 | |
2847 | /* Look through the global syms for functions; We need to | |
2848 | build export stubs for all globally visible functions. */ | |
25f72752 | 2849 | for (; sym_hashes < end_hashes; sym_hashes++) |
30667bf3 AM |
2850 | { |
2851 | struct elf32_hppa_link_hash_entry *hash; | |
2852 | ||
25f72752 | 2853 | hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes; |
30667bf3 AM |
2854 | |
2855 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2856 | || hash->elf.root.type == bfd_link_hash_warning) | |
2857 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2858 | hash->elf.root.u.i.link); | |
2859 | ||
2860 | /* At this point in the link, undefined syms have been | |
2861 | resolved, so we need to check that the symbol was | |
2862 | defined in this BFD. */ | |
2863 | if ((hash->elf.root.type == bfd_link_hash_defined | |
2864 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2865 | && hash->elf.type == STT_FUNC | |
2866 | && hash->elf.root.u.def.section->output_section != NULL | |
25f72752 AM |
2867 | && (hash->elf.root.u.def.section->output_section->owner |
2868 | == output_bfd) | |
30667bf3 AM |
2869 | && hash->elf.root.u.def.section->owner == input_bfd |
2870 | && (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
2871 | && !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) | |
2872 | && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT) | |
2873 | { | |
2874 | asection *sec; | |
2875 | const char *stub_name; | |
2876 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2877 | ||
2878 | sec = hash->elf.root.u.def.section; | |
2879 | stub_name = hash->elf.root.root.string; | |
83c81bfe | 2880 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
2881 | stub_name, |
2882 | false, false); | |
2883 | if (stub_entry == NULL) | |
2884 | { | |
83c81bfe | 2885 | stub_entry = hppa_add_stub (stub_name, sec, htab); |
30667bf3 | 2886 | if (!stub_entry) |
b4655ea9 | 2887 | return -1; |
30667bf3 AM |
2888 | |
2889 | stub_entry->target_value = hash->elf.root.u.def.value; | |
2890 | stub_entry->target_section = hash->elf.root.u.def.section; | |
2891 | stub_entry->stub_type = hppa_stub_export; | |
2892 | stub_entry->h = hash; | |
2893 | stub_changed = 1; | |
2894 | } | |
2895 | else | |
2896 | { | |
2897 | (*_bfd_error_handler) (_("%s: duplicate export stub %s"), | |
8f615d07 AM |
2898 | bfd_archive_filename (input_bfd), |
2899 | stub_name); | |
30667bf3 AM |
2900 | } |
2901 | } | |
2902 | } | |
30667bf3 AM |
2903 | } |
2904 | } | |
edd21aca | 2905 | |
b4655ea9 AM |
2906 | return stub_changed; |
2907 | } | |
2908 | ||
2909 | /* Determine and set the size of the stub section for a final link. | |
2910 | ||
2911 | The basic idea here is to examine all the relocations looking for | |
2912 | PC-relative calls to a target that is unreachable with a "bl" | |
2913 | instruction. */ | |
2914 | ||
2915 | boolean | |
2916 | elf32_hppa_size_stubs (output_bfd, stub_bfd, info, multi_subspace, group_size, | |
2917 | add_stub_section, layout_sections_again) | |
2918 | bfd *output_bfd; | |
2919 | bfd *stub_bfd; | |
2920 | struct bfd_link_info *info; | |
2921 | boolean multi_subspace; | |
2922 | bfd_signed_vma group_size; | |
2923 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
2924 | void (*layout_sections_again) PARAMS ((void)); | |
2925 | { | |
2926 | bfd_size_type stub_group_size; | |
2927 | boolean stubs_always_before_branch; | |
2928 | boolean stub_changed; | |
2929 | boolean ret = 0; | |
2930 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
2931 | ||
2932 | /* Stash our params away. */ | |
2933 | htab->stub_bfd = stub_bfd; | |
2934 | htab->multi_subspace = multi_subspace; | |
2935 | htab->add_stub_section = add_stub_section; | |
2936 | htab->layout_sections_again = layout_sections_again; | |
2937 | stubs_always_before_branch = group_size < 0; | |
2938 | if (group_size < 0) | |
2939 | stub_group_size = -group_size; | |
2940 | else | |
2941 | stub_group_size = group_size; | |
2942 | if (stub_group_size == 1) | |
2943 | { | |
2944 | /* Default values. */ | |
2945 | stub_group_size = 7680000; | |
2946 | if (htab->has_17bit_branch || htab->multi_subspace) | |
2947 | stub_group_size = 240000; | |
2948 | if (htab->has_12bit_branch) | |
2949 | stub_group_size = 7500; | |
2950 | } | |
2951 | ||
2952 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
2953 | ||
2954 | switch (get_local_syms (output_bfd, info->input_bfds, info)) | |
2955 | { | |
2956 | default: | |
2957 | if (htab->all_local_syms) | |
2958 | goto error_ret_free_local; | |
2959 | return false; | |
2960 | ||
2961 | case 0: | |
2962 | stub_changed = false; | |
2963 | break; | |
2964 | ||
2965 | case 1: | |
2966 | stub_changed = true; | |
2967 | break; | |
2968 | } | |
2969 | ||
edd21aca AM |
2970 | while (1) |
2971 | { | |
b4655ea9 AM |
2972 | bfd *input_bfd; |
2973 | unsigned int bfd_indx; | |
30667bf3 AM |
2974 | asection *stub_sec; |
2975 | ||
25f72752 | 2976 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2977 | input_bfd != NULL; |
25f72752 | 2978 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2979 | { |
2980 | Elf_Internal_Shdr *symtab_hdr; | |
b4655ea9 AM |
2981 | asection *section; |
2982 | Elf_Internal_Sym *local_syms; | |
30667bf3 AM |
2983 | |
2984 | /* We'll need the symbol table in a second. */ | |
2985 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2986 | if (symtab_hdr->sh_info == 0) | |
2987 | continue; | |
2988 | ||
b4655ea9 | 2989 | local_syms = htab->all_local_syms[bfd_indx]; |
30667bf3 AM |
2990 | |
2991 | /* Walk over each section attached to the input bfd. */ | |
2992 | for (section = input_bfd->sections; | |
2993 | section != NULL; | |
25f72752 | 2994 | section = section->next) |
30667bf3 AM |
2995 | { |
2996 | Elf_Internal_Shdr *input_rel_hdr; | |
2997 | Elf32_External_Rela *external_relocs, *erelaend, *erela; | |
2998 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; | |
b4655ea9 | 2999 | bfd_size_type amt; |
30667bf3 AM |
3000 | |
3001 | /* If there aren't any relocs, then there's nothing more | |
3002 | to do. */ | |
3003 | if ((section->flags & SEC_RELOC) == 0 | |
3004 | || section->reloc_count == 0) | |
3005 | continue; | |
3006 | ||
25f72752 AM |
3007 | /* If this section is a link-once section that will be |
3008 | discarded, then don't create any stubs. */ | |
3009 | if (section->output_section == NULL | |
3010 | || section->output_section->owner != output_bfd) | |
3011 | continue; | |
3012 | ||
30667bf3 | 3013 | /* Allocate space for the external relocations. */ |
dc810e39 AM |
3014 | amt = section->reloc_count; |
3015 | amt *= sizeof (Elf32_External_Rela); | |
3016 | external_relocs = (Elf32_External_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
3017 | if (external_relocs == NULL) |
3018 | { | |
3019 | goto error_ret_free_local; | |
3020 | } | |
3021 | ||
3022 | /* Likewise for the internal relocations. */ | |
dc810e39 AM |
3023 | amt = section->reloc_count; |
3024 | amt *= sizeof (Elf_Internal_Rela); | |
3025 | internal_relocs = (Elf_Internal_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
3026 | if (internal_relocs == NULL) |
3027 | { | |
3028 | free (external_relocs); | |
3029 | goto error_ret_free_local; | |
3030 | } | |
3031 | ||
3032 | /* Read in the external relocs. */ | |
3033 | input_rel_hdr = &elf_section_data (section)->rel_hdr; | |
3034 | if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0 | |
9ad5cbcf AM |
3035 | || bfd_bread ((PTR) external_relocs, |
3036 | input_rel_hdr->sh_size, | |
3037 | input_bfd) != input_rel_hdr->sh_size) | |
30667bf3 AM |
3038 | { |
3039 | free (external_relocs); | |
3040 | error_ret_free_internal: | |
3041 | free (internal_relocs); | |
3042 | goto error_ret_free_local; | |
3043 | } | |
3044 | ||
3045 | /* Swap in the relocs. */ | |
3046 | erela = external_relocs; | |
3047 | erelaend = erela + section->reloc_count; | |
3048 | irela = internal_relocs; | |
3049 | for (; erela < erelaend; erela++, irela++) | |
3050 | bfd_elf32_swap_reloca_in (input_bfd, erela, irela); | |
3051 | ||
3052 | /* We're done with the external relocs, free them. */ | |
3053 | free (external_relocs); | |
3054 | ||
3055 | /* Now examine each relocation. */ | |
3056 | irela = internal_relocs; | |
3057 | irelaend = irela + section->reloc_count; | |
3058 | for (; irela < irelaend; irela++) | |
3059 | { | |
3060 | unsigned int r_type, r_indx; | |
3061 | enum elf32_hppa_stub_type stub_type; | |
3062 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
3063 | asection *sym_sec; | |
3064 | bfd_vma sym_value; | |
3065 | bfd_vma destination; | |
3066 | struct elf32_hppa_link_hash_entry *hash; | |
3067 | char *stub_name; | |
25f72752 | 3068 | const asection *id_sec; |
30667bf3 AM |
3069 | |
3070 | r_type = ELF32_R_TYPE (irela->r_info); | |
3071 | r_indx = ELF32_R_SYM (irela->r_info); | |
3072 | ||
3073 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3074 | { | |
3075 | bfd_set_error (bfd_error_bad_value); | |
3076 | goto error_ret_free_internal; | |
3077 | } | |
3078 | ||
3079 | /* Only look for stubs on call instructions. */ | |
3080 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
3081 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
3082 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
3083 | continue; | |
3084 | ||
3085 | /* Now determine the call target, its name, value, | |
3086 | section. */ | |
3087 | sym_sec = NULL; | |
3088 | sym_value = 0; | |
3089 | destination = 0; | |
3090 | hash = NULL; | |
3091 | if (r_indx < symtab_hdr->sh_info) | |
3092 | { | |
3093 | /* It's a local symbol. */ | |
3094 | Elf_Internal_Sym *sym; | |
3095 | Elf_Internal_Shdr *hdr; | |
3096 | ||
3097 | sym = local_syms + r_indx; | |
3098 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
3099 | sym_sec = hdr->bfd_section; | |
3100 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
3101 | sym_value = sym->st_value; | |
3102 | destination = (sym_value + irela->r_addend | |
3103 | + sym_sec->output_offset | |
3104 | + sym_sec->output_section->vma); | |
3105 | } | |
3106 | else | |
3107 | { | |
3108 | /* It's an external symbol. */ | |
3109 | int e_indx; | |
3110 | ||
3111 | e_indx = r_indx - symtab_hdr->sh_info; | |
3112 | hash = ((struct elf32_hppa_link_hash_entry *) | |
3113 | elf_sym_hashes (input_bfd)[e_indx]); | |
3114 | ||
3115 | while (hash->elf.root.type == bfd_link_hash_indirect | |
3116 | || hash->elf.root.type == bfd_link_hash_warning) | |
3117 | hash = ((struct elf32_hppa_link_hash_entry *) | |
3118 | hash->elf.root.u.i.link); | |
3119 | ||
3120 | if (hash->elf.root.type == bfd_link_hash_defined | |
3121 | || hash->elf.root.type == bfd_link_hash_defweak) | |
3122 | { | |
3123 | sym_sec = hash->elf.root.u.def.section; | |
3124 | sym_value = hash->elf.root.u.def.value; | |
3125 | if (sym_sec->output_section != NULL) | |
3126 | destination = (sym_value + irela->r_addend | |
3127 | + sym_sec->output_offset | |
3128 | + sym_sec->output_section->vma); | |
3129 | } | |
3130 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
c432ba1a AM |
3131 | { |
3132 | if (! info->shared) | |
3133 | continue; | |
3134 | } | |
30667bf3 | 3135 | else if (hash->elf.root.type == bfd_link_hash_undefined) |
c432ba1a AM |
3136 | { |
3137 | if (! (info->shared | |
3138 | && !info->no_undefined | |
3139 | && (ELF_ST_VISIBILITY (hash->elf.other) | |
3140 | == STV_DEFAULT) | |
3141 | && hash->elf.type != STT_PARISC_MILLI)) | |
3142 | continue; | |
3143 | } | |
30667bf3 AM |
3144 | else |
3145 | { | |
3146 | bfd_set_error (bfd_error_bad_value); | |
3147 | goto error_ret_free_internal; | |
3148 | } | |
3149 | } | |
3150 | ||
3151 | /* Determine what (if any) linker stub is needed. */ | |
3152 | stub_type = hppa_type_of_stub (section, irela, hash, | |
3153 | destination); | |
3154 | if (stub_type == hppa_stub_none) | |
3155 | continue; | |
3156 | ||
25f72752 | 3157 | /* Support for grouping stub sections. */ |
83c81bfe | 3158 | id_sec = htab->stub_group[section->id].link_sec; |
25f72752 | 3159 | |
30667bf3 | 3160 | /* Get the name of this stub. */ |
25f72752 | 3161 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela); |
30667bf3 AM |
3162 | if (!stub_name) |
3163 | goto error_ret_free_internal; | |
3164 | ||
83c81bfe | 3165 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
3166 | stub_name, |
3167 | false, false); | |
3168 | if (stub_entry != NULL) | |
3169 | { | |
3170 | /* The proper stub has already been created. */ | |
3171 | free (stub_name); | |
3172 | continue; | |
3173 | } | |
3174 | ||
83c81bfe | 3175 | stub_entry = hppa_add_stub (stub_name, section, htab); |
30667bf3 AM |
3176 | if (stub_entry == NULL) |
3177 | { | |
3178 | free (stub_name); | |
3179 | goto error_ret_free_local; | |
3180 | } | |
3181 | ||
3182 | stub_entry->target_value = sym_value; | |
3183 | stub_entry->target_section = sym_sec; | |
3184 | stub_entry->stub_type = stub_type; | |
3185 | if (info->shared) | |
3186 | { | |
3187 | if (stub_type == hppa_stub_import) | |
3188 | stub_entry->stub_type = hppa_stub_import_shared; | |
98ceb8ce | 3189 | else if (stub_type == hppa_stub_long_branch) |
30667bf3 AM |
3190 | stub_entry->stub_type = hppa_stub_long_branch_shared; |
3191 | } | |
3192 | stub_entry->h = hash; | |
b4655ea9 | 3193 | stub_changed = true; |
30667bf3 AM |
3194 | } |
3195 | ||
3196 | /* We're done with the internal relocs, free them. */ | |
3197 | free (internal_relocs); | |
3198 | } | |
3199 | } | |
3200 | ||
3201 | if (!stub_changed) | |
3202 | break; | |
3203 | ||
3204 | /* OK, we've added some stubs. Find out the new size of the | |
3205 | stub sections. */ | |
83c81bfe | 3206 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3207 | stub_sec != NULL; |
3208 | stub_sec = stub_sec->next) | |
3209 | { | |
74d1c347 AM |
3210 | stub_sec->_raw_size = 0; |
3211 | stub_sec->_cooked_size = 0; | |
3212 | } | |
74d1c347 | 3213 | |
83c81bfe | 3214 | bfd_hash_traverse (&htab->stub_hash_table, hppa_size_one_stub, htab); |
74d1c347 | 3215 | |
30667bf3 | 3216 | /* Ask the linker to do its stuff. */ |
83c81bfe | 3217 | (*htab->layout_sections_again) (); |
b4655ea9 | 3218 | stub_changed = false; |
30667bf3 AM |
3219 | } |
3220 | ||
b4655ea9 | 3221 | ret = true; |
30667bf3 AM |
3222 | |
3223 | error_ret_free_local: | |
b4655ea9 AM |
3224 | while (htab->bfd_count-- > 0) |
3225 | if (htab->all_local_syms[htab->bfd_count]) | |
3226 | free (htab->all_local_syms[htab->bfd_count]); | |
3227 | free (htab->all_local_syms); | |
30667bf3 | 3228 | |
25f72752 | 3229 | return ret; |
30667bf3 AM |
3230 | } |
3231 | ||
30667bf3 AM |
3232 | /* For a final link, this function is called after we have sized the |
3233 | stubs to provide a value for __gp. */ | |
3234 | ||
3235 | boolean | |
3236 | elf32_hppa_set_gp (abfd, info) | |
3237 | bfd *abfd; | |
3238 | struct bfd_link_info *info; | |
3239 | { | |
b4655ea9 AM |
3240 | struct bfd_link_hash_entry *h; |
3241 | asection *sec = NULL; | |
3242 | bfd_vma gp_val = 0; | |
83c81bfe | 3243 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3244 | |
83c81bfe | 3245 | htab = hppa_link_hash_table (info); |
b4655ea9 | 3246 | h = bfd_link_hash_lookup (&htab->elf.root, "$global$", false, false, false); |
30667bf3 | 3247 | |
df8634e3 | 3248 | if (h != NULL |
b4655ea9 AM |
3249 | && (h->type == bfd_link_hash_defined |
3250 | || h->type == bfd_link_hash_defweak)) | |
30667bf3 | 3251 | { |
b4655ea9 AM |
3252 | gp_val = h->u.def.value; |
3253 | sec = h->u.def.section; | |
30667bf3 AM |
3254 | } |
3255 | else | |
3256 | { | |
b4655ea9 AM |
3257 | asection *splt; |
3258 | asection *sgot; | |
3259 | ||
3260 | if (htab->elf.root.creator->flavour == bfd_target_elf_flavour) | |
3261 | { | |
3262 | splt = htab->splt; | |
3263 | sgot = htab->sgot; | |
3264 | } | |
3265 | else | |
3266 | { | |
3267 | /* If we're not elf, look up the output sections in the | |
3268 | hope we may actually find them. */ | |
3269 | splt = bfd_get_section_by_name (abfd, ".plt"); | |
3270 | sgot = bfd_get_section_by_name (abfd, ".got"); | |
3271 | } | |
3272 | ||
74d1c347 AM |
3273 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
3274 | or .data, if these sections exist. In the case of choosing | |
3275 | .plt try to make the LTP ideal for addressing anywhere in the | |
3276 | .plt or .got with a 14 bit signed offset. Typically, the end | |
3277 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
3278 | if either the .plt or .got is larger than 0x2000. If both | |
3279 | the .plt and .got are smaller than 0x2000, choose the end of | |
3280 | the .plt section. */ | |
b4655ea9 | 3281 | sec = splt; |
74d1c347 | 3282 | if (sec != NULL) |
30667bf3 | 3283 | { |
74d1c347 | 3284 | gp_val = sec->_raw_size; |
b4655ea9 | 3285 | if (gp_val > 0x2000 || (sgot && sgot->_raw_size > 0x2000)) |
74d1c347 AM |
3286 | { |
3287 | gp_val = 0x2000; | |
3288 | } | |
3289 | } | |
3290 | else | |
3291 | { | |
b4655ea9 | 3292 | sec = sgot; |
74d1c347 AM |
3293 | if (sec != NULL) |
3294 | { | |
3295 | /* We know we don't have a .plt. If .got is large, | |
3296 | offset our LTP. */ | |
3297 | if (sec->_raw_size > 0x2000) | |
3298 | gp_val = 0x2000; | |
3299 | } | |
3300 | else | |
3301 | { | |
3302 | /* No .plt or .got. Who cares what the LTP is? */ | |
3303 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3304 | } | |
30667bf3 | 3305 | } |
df8634e3 AM |
3306 | |
3307 | if (h != NULL) | |
3308 | { | |
b4655ea9 AM |
3309 | h->type = bfd_link_hash_defined; |
3310 | h->u.def.value = gp_val; | |
df8634e3 | 3311 | if (sec != NULL) |
b4655ea9 | 3312 | h->u.def.section = sec; |
df8634e3 | 3313 | else |
b4655ea9 | 3314 | h->u.def.section = bfd_abs_section_ptr; |
df8634e3 | 3315 | } |
30667bf3 AM |
3316 | } |
3317 | ||
b32b5d6e | 3318 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
3319 | gp_val += sec->output_section->vma + sec->output_offset; |
3320 | ||
3321 | elf_gp (abfd) = gp_val; | |
30667bf3 AM |
3322 | return true; |
3323 | } | |
3324 | ||
30667bf3 AM |
3325 | /* Build all the stubs associated with the current output file. The |
3326 | stubs are kept in a hash table attached to the main linker hash | |
3327 | table. We also set up the .plt entries for statically linked PIC | |
3328 | functions here. This function is called via hppaelf_finish in the | |
3329 | linker. */ | |
3330 | ||
3331 | boolean | |
3332 | elf32_hppa_build_stubs (info) | |
3333 | struct bfd_link_info *info; | |
3334 | { | |
3335 | asection *stub_sec; | |
3336 | struct bfd_hash_table *table; | |
83c81bfe | 3337 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3338 | |
83c81bfe | 3339 | htab = hppa_link_hash_table (info); |
30667bf3 | 3340 | |
83c81bfe | 3341 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3342 | stub_sec != NULL; |
3343 | stub_sec = stub_sec->next) | |
3344 | { | |
dc810e39 | 3345 | bfd_size_type size; |
30667bf3 AM |
3346 | |
3347 | /* Allocate memory to hold the linker stubs. */ | |
74d1c347 | 3348 | size = stub_sec->_raw_size; |
83c81bfe | 3349 | stub_sec->contents = (unsigned char *) bfd_zalloc (htab->stub_bfd, size); |
30667bf3 AM |
3350 | if (stub_sec->contents == NULL && size != 0) |
3351 | return false; | |
74d1c347 | 3352 | stub_sec->_raw_size = 0; |
30667bf3 AM |
3353 | } |
3354 | ||
3355 | /* Build the stubs as directed by the stub hash table. */ | |
83c81bfe | 3356 | table = &htab->stub_hash_table; |
30667bf3 AM |
3357 | bfd_hash_traverse (table, hppa_build_one_stub, info); |
3358 | ||
3359 | return true; | |
3360 | } | |
3361 | ||
c46b7515 AM |
3362 | /* Perform a final link. */ |
3363 | ||
3364 | static boolean | |
3365 | elf32_hppa_final_link (abfd, info) | |
3366 | bfd *abfd; | |
3367 | struct bfd_link_info *info; | |
3368 | { | |
4dc86686 AM |
3369 | /* Invoke the regular ELF linker to do all the work. */ |
3370 | if (!bfd_elf32_bfd_final_link (abfd, info)) | |
c46b7515 AM |
3371 | return false; |
3372 | ||
3373 | /* If we're producing a final executable, sort the contents of the | |
985142a4 | 3374 | unwind section. */ |
46fe4e66 | 3375 | return elf_hppa_sort_unwind (abfd); |
c46b7515 AM |
3376 | } |
3377 | ||
3378 | /* Record the lowest address for the data and text segments. */ | |
3379 | ||
3380 | static void | |
3381 | hppa_record_segment_addr (abfd, section, data) | |
3382 | bfd *abfd ATTRIBUTE_UNUSED; | |
3383 | asection *section; | |
3384 | PTR data; | |
3385 | { | |
83c81bfe | 3386 | struct elf32_hppa_link_hash_table *htab; |
c46b7515 | 3387 | |
83c81bfe | 3388 | htab = (struct elf32_hppa_link_hash_table *) data; |
c46b7515 AM |
3389 | |
3390 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3391 | { | |
3392 | bfd_vma value = section->vma - section->filepos; | |
3393 | ||
3394 | if ((section->flags & SEC_READONLY) != 0) | |
3395 | { | |
83c81bfe AM |
3396 | if (value < htab->text_segment_base) |
3397 | htab->text_segment_base = value; | |
c46b7515 AM |
3398 | } |
3399 | else | |
3400 | { | |
83c81bfe AM |
3401 | if (value < htab->data_segment_base) |
3402 | htab->data_segment_base = value; | |
c46b7515 AM |
3403 | } |
3404 | } | |
3405 | } | |
3406 | ||
30667bf3 AM |
3407 | /* Perform a relocation as part of a final link. */ |
3408 | ||
3409 | static bfd_reloc_status_type | |
83c81bfe | 3410 | final_link_relocate (input_section, contents, rel, value, htab, sym_sec, h) |
30667bf3 AM |
3411 | asection *input_section; |
3412 | bfd_byte *contents; | |
3413 | const Elf_Internal_Rela *rel; | |
3414 | bfd_vma value; | |
83c81bfe | 3415 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3416 | asection *sym_sec; |
3417 | struct elf32_hppa_link_hash_entry *h; | |
3418 | { | |
3419 | int insn; | |
3420 | unsigned int r_type = ELF32_R_TYPE (rel->r_info); | |
3421 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; | |
3422 | int r_format = howto->bitsize; | |
3423 | enum hppa_reloc_field_selector_type_alt r_field; | |
3424 | bfd *input_bfd = input_section->owner; | |
3425 | bfd_vma offset = rel->r_offset; | |
3426 | bfd_vma max_branch_offset = 0; | |
3427 | bfd_byte *hit_data = contents + offset; | |
3428 | bfd_signed_vma addend = rel->r_addend; | |
3429 | bfd_vma location; | |
3430 | struct elf32_hppa_stub_hash_entry *stub_entry = NULL; | |
3431 | int val; | |
3432 | ||
3433 | if (r_type == R_PARISC_NONE) | |
3434 | return bfd_reloc_ok; | |
3435 | ||
3436 | insn = bfd_get_32 (input_bfd, hit_data); | |
3437 | ||
3438 | /* Find out where we are and where we're going. */ | |
3439 | location = (offset + | |
3440 | input_section->output_offset + | |
3441 | input_section->output_section->vma); | |
3442 | ||
3443 | switch (r_type) | |
3444 | { | |
3445 | case R_PARISC_PCREL12F: | |
3446 | case R_PARISC_PCREL17F: | |
3447 | case R_PARISC_PCREL22F: | |
067fa4a6 AM |
3448 | /* If this call should go via the plt, find the import stub in |
3449 | the stub hash. */ | |
30667bf3 AM |
3450 | if (sym_sec == NULL |
3451 | || sym_sec->output_section == NULL | |
12cca0d2 | 3452 | || (h != NULL |
067fa4a6 AM |
3453 | && h->elf.plt.offset != (bfd_vma) -1 |
3454 | && (h->elf.dynindx != -1 || h->pic_call) | |
3455 | && !h->plabel)) | |
30667bf3 AM |
3456 | { |
3457 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3458 | h, rel, htab); |
30667bf3 AM |
3459 | if (stub_entry != NULL) |
3460 | { | |
3461 | value = (stub_entry->stub_offset | |
3462 | + stub_entry->stub_sec->output_offset | |
3463 | + stub_entry->stub_sec->output_section->vma); | |
3464 | addend = 0; | |
3465 | } | |
3466 | else if (sym_sec == NULL && h != NULL | |
3467 | && h->elf.root.type == bfd_link_hash_undefweak) | |
3468 | { | |
db20fd76 AM |
3469 | /* It's OK if undefined weak. Calls to undefined weak |
3470 | symbols behave as if the "called" function | |
3471 | immediately returns. We can thus call to a weak | |
3472 | function without first checking whether the function | |
3473 | is defined. */ | |
30667bf3 | 3474 | value = location; |
db20fd76 | 3475 | addend = 8; |
30667bf3 AM |
3476 | } |
3477 | else | |
f09ebc7d | 3478 | return bfd_reloc_undefined; |
30667bf3 AM |
3479 | } |
3480 | /* Fall thru. */ | |
3481 | ||
3482 | case R_PARISC_PCREL21L: | |
3483 | case R_PARISC_PCREL17C: | |
3484 | case R_PARISC_PCREL17R: | |
3485 | case R_PARISC_PCREL14R: | |
3486 | case R_PARISC_PCREL14F: | |
3487 | /* Make it a pc relative offset. */ | |
3488 | value -= location; | |
3489 | addend -= 8; | |
3490 | break; | |
3491 | ||
3492 | case R_PARISC_DPREL21L: | |
3493 | case R_PARISC_DPREL14R: | |
3494 | case R_PARISC_DPREL14F: | |
3495 | /* For all the DP relative relocations, we need to examine the symbol's | |
3496 | section. If it's a code section, then "data pointer relative" makes | |
3497 | no sense. In that case we don't adjust the "value", and for 21 bit | |
3498 | addil instructions, we change the source addend register from %dp to | |
3499 | %r0. This situation commonly arises when a variable's "constness" | |
3500 | is declared differently from the way the variable is defined. For | |
3501 | instance: "extern int foo" with foo defined as "const int foo". */ | |
3502 | if (sym_sec == NULL) | |
3503 | break; | |
3504 | if ((sym_sec->flags & SEC_CODE) != 0) | |
3505 | { | |
3506 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3507 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3508 | { | |
3509 | insn &= ~ (0x1f << 21); | |
067fa4a6 | 3510 | #if 0 /* debug them. */ |
30667bf3 AM |
3511 | (*_bfd_error_handler) |
3512 | (_("%s(%s+0x%lx): fixing %s"), | |
8f615d07 | 3513 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3514 | input_section->name, |
3515 | (long) rel->r_offset, | |
3516 | howto->name); | |
3517 | #endif | |
3518 | } | |
3519 | /* Now try to make things easy for the dynamic linker. */ | |
3520 | ||
3521 | break; | |
3522 | } | |
74d1c347 | 3523 | /* Fall thru. */ |
30667bf3 AM |
3524 | |
3525 | case R_PARISC_DLTIND21L: | |
3526 | case R_PARISC_DLTIND14R: | |
3527 | case R_PARISC_DLTIND14F: | |
3528 | value -= elf_gp (input_section->output_section->owner); | |
3529 | break; | |
3530 | ||
c46b7515 AM |
3531 | case R_PARISC_SEGREL32: |
3532 | if ((sym_sec->flags & SEC_CODE) != 0) | |
83c81bfe | 3533 | value -= htab->text_segment_base; |
c46b7515 | 3534 | else |
83c81bfe | 3535 | value -= htab->data_segment_base; |
c46b7515 AM |
3536 | break; |
3537 | ||
30667bf3 AM |
3538 | default: |
3539 | break; | |
3540 | } | |
3541 | ||
3542 | switch (r_type) | |
3543 | { | |
3544 | case R_PARISC_DIR32: | |
47d89dba | 3545 | case R_PARISC_DIR14F: |
30667bf3 AM |
3546 | case R_PARISC_DIR17F: |
3547 | case R_PARISC_PCREL17C: | |
3548 | case R_PARISC_PCREL14F: | |
3549 | case R_PARISC_DPREL14F: | |
3550 | case R_PARISC_PLABEL32: | |
3551 | case R_PARISC_DLTIND14F: | |
3552 | case R_PARISC_SEGBASE: | |
3553 | case R_PARISC_SEGREL32: | |
3554 | r_field = e_fsel; | |
3555 | break; | |
3556 | ||
1bf42538 | 3557 | case R_PARISC_DLTIND21L: |
30667bf3 | 3558 | case R_PARISC_PCREL21L: |
30667bf3 | 3559 | case R_PARISC_PLABEL21L: |
1bf42538 JL |
3560 | r_field = e_lsel; |
3561 | break; | |
3562 | ||
3563 | case R_PARISC_DIR21L: | |
3564 | case R_PARISC_DPREL21L: | |
30667bf3 AM |
3565 | r_field = e_lrsel; |
3566 | break; | |
3567 | ||
30667bf3 | 3568 | case R_PARISC_PCREL17R: |
30667bf3 | 3569 | case R_PARISC_PCREL14R: |
30667bf3 AM |
3570 | case R_PARISC_PLABEL14R: |
3571 | case R_PARISC_DLTIND14R: | |
1bf42538 JL |
3572 | r_field = e_rsel; |
3573 | break; | |
3574 | ||
3575 | case R_PARISC_DIR17R: | |
3576 | case R_PARISC_DIR14R: | |
3577 | case R_PARISC_DPREL14R: | |
30667bf3 AM |
3578 | r_field = e_rrsel; |
3579 | break; | |
3580 | ||
3581 | case R_PARISC_PCREL12F: | |
3582 | case R_PARISC_PCREL17F: | |
3583 | case R_PARISC_PCREL22F: | |
3584 | r_field = e_fsel; | |
3585 | ||
3586 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3587 | { | |
3588 | max_branch_offset = (1 << (17-1)) << 2; | |
3589 | } | |
3590 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3591 | { | |
3592 | max_branch_offset = (1 << (12-1)) << 2; | |
3593 | } | |
3594 | else | |
3595 | { | |
3596 | max_branch_offset = (1 << (22-1)) << 2; | |
3597 | } | |
3598 | ||
3599 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3600 | undefined syms. We've already checked for a stub for the | |
3601 | shared undefined case. */ | |
3602 | if (sym_sec == NULL) | |
3603 | break; | |
3604 | ||
3605 | /* If the branch is out of reach, then redirect the | |
3606 | call to the local stub for this function. */ | |
3607 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3608 | { | |
3609 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3610 | h, rel, htab); |
30667bf3 | 3611 | if (stub_entry == NULL) |
f09ebc7d | 3612 | return bfd_reloc_undefined; |
30667bf3 AM |
3613 | |
3614 | /* Munge up the value and addend so that we call the stub | |
3615 | rather than the procedure directly. */ | |
3616 | value = (stub_entry->stub_offset | |
3617 | + stub_entry->stub_sec->output_offset | |
3618 | + stub_entry->stub_sec->output_section->vma | |
3619 | - location); | |
3620 | addend = -8; | |
3621 | } | |
3622 | break; | |
3623 | ||
3624 | /* Something we don't know how to handle. */ | |
3625 | default: | |
3626 | return bfd_reloc_notsupported; | |
3627 | } | |
3628 | ||
3629 | /* Make sure we can reach the stub. */ | |
3630 | if (max_branch_offset != 0 | |
3631 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3632 | { | |
3633 | (*_bfd_error_handler) | |
3634 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), | |
8f615d07 | 3635 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3636 | input_section->name, |
3637 | (long) rel->r_offset, | |
3638 | stub_entry->root.string); | |
ce757d15 | 3639 | bfd_set_error (bfd_error_bad_value); |
30667bf3 AM |
3640 | return bfd_reloc_notsupported; |
3641 | } | |
3642 | ||
3643 | val = hppa_field_adjust (value, addend, r_field); | |
3644 | ||
3645 | switch (r_type) | |
3646 | { | |
3647 | case R_PARISC_PCREL12F: | |
3648 | case R_PARISC_PCREL17C: | |
3649 | case R_PARISC_PCREL17F: | |
3650 | case R_PARISC_PCREL17R: | |
3651 | case R_PARISC_PCREL22F: | |
3652 | case R_PARISC_DIR17F: | |
3653 | case R_PARISC_DIR17R: | |
3654 | /* This is a branch. Divide the offset by four. | |
3655 | Note that we need to decide whether it's a branch or | |
3656 | otherwise by inspecting the reloc. Inspecting insn won't | |
3657 | work as insn might be from a .word directive. */ | |
3658 | val >>= 2; | |
3659 | break; | |
3660 | ||
3661 | default: | |
3662 | break; | |
3663 | } | |
3664 | ||
3665 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3666 | ||
3667 | /* Update the instruction word. */ | |
74d1c347 | 3668 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3669 | return bfd_reloc_ok; |
3670 | } | |
3671 | ||
30667bf3 AM |
3672 | /* Relocate an HPPA ELF section. */ |
3673 | ||
3674 | static boolean | |
3675 | elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section, | |
3676 | contents, relocs, local_syms, local_sections) | |
3677 | bfd *output_bfd; | |
3678 | struct bfd_link_info *info; | |
3679 | bfd *input_bfd; | |
3680 | asection *input_section; | |
3681 | bfd_byte *contents; | |
3682 | Elf_Internal_Rela *relocs; | |
3683 | Elf_Internal_Sym *local_syms; | |
3684 | asection **local_sections; | |
3685 | { | |
30667bf3 | 3686 | bfd_vma *local_got_offsets; |
83c81bfe | 3687 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3688 | Elf_Internal_Shdr *symtab_hdr; |
3689 | Elf_Internal_Rela *rel; | |
3690 | Elf_Internal_Rela *relend; | |
30667bf3 AM |
3691 | |
3692 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3693 | ||
83c81bfe | 3694 | htab = hppa_link_hash_table (info); |
74d1c347 | 3695 | local_got_offsets = elf_local_got_offsets (input_bfd); |
30667bf3 AM |
3696 | |
3697 | rel = relocs; | |
3698 | relend = relocs + input_section->reloc_count; | |
3699 | for (; rel < relend; rel++) | |
3700 | { | |
3701 | unsigned int r_type; | |
3702 | reloc_howto_type *howto; | |
3703 | unsigned int r_symndx; | |
3704 | struct elf32_hppa_link_hash_entry *h; | |
3705 | Elf_Internal_Sym *sym; | |
3706 | asection *sym_sec; | |
3707 | bfd_vma relocation; | |
3708 | bfd_reloc_status_type r; | |
3709 | const char *sym_name; | |
74d1c347 | 3710 | boolean plabel; |
f09ebc7d | 3711 | boolean warned_undef; |
30667bf3 AM |
3712 | |
3713 | r_type = ELF32_R_TYPE (rel->r_info); | |
3714 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3715 | { | |
3716 | bfd_set_error (bfd_error_bad_value); | |
3717 | return false; | |
3718 | } | |
3719 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3720 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3721 | continue; | |
3722 | ||
3723 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3724 | ||
3725 | if (info->relocateable) | |
3726 | { | |
3ac8354b | 3727 | /* This is a relocatable link. We don't have to change |
30667bf3 AM |
3728 | anything, unless the reloc is against a section symbol, |
3729 | in which case we have to adjust according to where the | |
3730 | section symbol winds up in the output section. */ | |
3731 | if (r_symndx < symtab_hdr->sh_info) | |
3732 | { | |
3733 | sym = local_syms + r_symndx; | |
3734 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3735 | { | |
3736 | sym_sec = local_sections[r_symndx]; | |
3737 | rel->r_addend += sym_sec->output_offset; | |
3738 | } | |
3739 | } | |
3740 | continue; | |
3741 | } | |
3742 | ||
3743 | /* This is a final link. */ | |
3744 | h = NULL; | |
3745 | sym = NULL; | |
3746 | sym_sec = NULL; | |
f09ebc7d | 3747 | warned_undef = false; |
30667bf3 AM |
3748 | if (r_symndx < symtab_hdr->sh_info) |
3749 | { | |
3750 | /* This is a local symbol, h defaults to NULL. */ | |
3751 | sym = local_syms + r_symndx; | |
3752 | sym_sec = local_sections[r_symndx]; | |
f8df10f4 | 3753 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sym_sec, rel); |
30667bf3 AM |
3754 | } |
3755 | else | |
3756 | { | |
3757 | int indx; | |
3758 | ||
3759 | /* It's a global; Find its entry in the link hash. */ | |
3760 | indx = r_symndx - symtab_hdr->sh_info; | |
3761 | h = ((struct elf32_hppa_link_hash_entry *) | |
3762 | elf_sym_hashes (input_bfd)[indx]); | |
3763 | while (h->elf.root.type == bfd_link_hash_indirect | |
3764 | || h->elf.root.type == bfd_link_hash_warning) | |
3765 | h = (struct elf32_hppa_link_hash_entry *) h->elf.root.u.i.link; | |
3766 | ||
3767 | relocation = 0; | |
3768 | if (h->elf.root.type == bfd_link_hash_defined | |
3769 | || h->elf.root.type == bfd_link_hash_defweak) | |
3770 | { | |
3771 | sym_sec = h->elf.root.u.def.section; | |
3772 | /* If sym_sec->output_section is NULL, then it's a | |
3773 | symbol defined in a shared library. */ | |
3774 | if (sym_sec->output_section != NULL) | |
3775 | relocation = (h->elf.root.u.def.value | |
3776 | + sym_sec->output_offset | |
3777 | + sym_sec->output_section->vma); | |
3778 | } | |
3779 | else if (h->elf.root.type == bfd_link_hash_undefweak) | |
3780 | ; | |
3781 | else if (info->shared && !info->no_undefined | |
49e9d0d3 AM |
3782 | && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
3783 | && h->elf.type != STT_PARISC_MILLI) | |
30667bf3 | 3784 | { |
671bae9c | 3785 | if (info->symbolic && !info->allow_shlib_undefined) |
f09ebc7d AM |
3786 | { |
3787 | if (!((*info->callbacks->undefined_symbol) | |
3788 | (info, h->elf.root.root.string, input_bfd, | |
3789 | input_section, rel->r_offset, false))) | |
3790 | return false; | |
3791 | warned_undef = true; | |
3792 | } | |
30667bf3 AM |
3793 | } |
3794 | else | |
3795 | { | |
3796 | if (!((*info->callbacks->undefined_symbol) | |
3797 | (info, h->elf.root.root.string, input_bfd, | |
3798 | input_section, rel->r_offset, true))) | |
3799 | return false; | |
f09ebc7d | 3800 | warned_undef = true; |
30667bf3 AM |
3801 | } |
3802 | } | |
3803 | ||
3804 | /* Do any required modifications to the relocation value, and | |
25f72752 AM |
3805 | determine what types of dynamic info we need to output, if |
3806 | any. */ | |
74d1c347 | 3807 | plabel = 0; |
30667bf3 AM |
3808 | switch (r_type) |
3809 | { | |
3810 | case R_PARISC_DLTIND14F: | |
3811 | case R_PARISC_DLTIND14R: | |
3812 | case R_PARISC_DLTIND21L: | |
ce757d15 AM |
3813 | { |
3814 | bfd_vma off; | |
3815 | boolean do_got = 0; | |
3816 | ||
3817 | /* Relocation is to the entry for this symbol in the | |
3818 | global offset table. */ | |
3819 | if (h != NULL) | |
3820 | { | |
3821 | boolean dyn; | |
3822 | ||
3823 | off = h->elf.got.offset; | |
3824 | dyn = htab->elf.dynamic_sections_created; | |
3825 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf)) | |
3826 | { | |
3827 | /* If we aren't going to call finish_dynamic_symbol, | |
3828 | then we need to handle initialisation of the .got | |
3829 | entry and create needed relocs here. Since the | |
3830 | offset must always be a multiple of 4, we use the | |
3831 | least significant bit to record whether we have | |
3832 | initialised it already. */ | |
3833 | if ((off & 1) != 0) | |
3834 | off &= ~1; | |
3835 | else | |
3836 | { | |
3837 | h->elf.got.offset |= 1; | |
3838 | do_got = 1; | |
3839 | } | |
3840 | } | |
3841 | } | |
3842 | else | |
3843 | { | |
3844 | /* Local symbol case. */ | |
3845 | if (local_got_offsets == NULL) | |
3846 | abort (); | |
3847 | ||
3848 | off = local_got_offsets[r_symndx]; | |
3849 | ||
3850 | /* The offset must always be a multiple of 4. We use | |
3851 | the least significant bit to record whether we have | |
3852 | already generated the necessary reloc. */ | |
3853 | if ((off & 1) != 0) | |
3854 | off &= ~1; | |
3855 | else | |
3856 | { | |
3857 | local_got_offsets[r_symndx] |= 1; | |
3858 | do_got = 1; | |
3859 | } | |
3860 | } | |
68fb2e56 | 3861 | |
ce757d15 AM |
3862 | if (do_got) |
3863 | { | |
3864 | if (info->shared) | |
3865 | { | |
3866 | /* Output a dynamic relocation for this GOT entry. | |
3867 | In this case it is relative to the base of the | |
3868 | object because the symbol index is zero. */ | |
3869 | Elf_Internal_Rela outrel; | |
3870 | asection *srelgot = htab->srelgot; | |
3871 | Elf32_External_Rela *loc; | |
3872 | ||
3873 | outrel.r_offset = (off | |
3874 | + htab->sgot->output_offset | |
3875 | + htab->sgot->output_section->vma); | |
3876 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); | |
3877 | outrel.r_addend = relocation; | |
3878 | loc = (Elf32_External_Rela *) srelgot->contents; | |
3879 | loc += srelgot->reloc_count++; | |
3880 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3881 | } | |
3882 | else | |
30667bf3 | 3883 | bfd_put_32 (output_bfd, relocation, |
83c81bfe | 3884 | htab->sgot->contents + off); |
ce757d15 | 3885 | } |
30667bf3 | 3886 | |
ce757d15 AM |
3887 | if (off >= (bfd_vma) -2) |
3888 | abort (); | |
30667bf3 | 3889 | |
ce757d15 AM |
3890 | /* Add the base of the GOT to the relocation value. */ |
3891 | relocation = (off | |
3892 | + htab->sgot->output_offset | |
3893 | + htab->sgot->output_section->vma); | |
3894 | } | |
30667bf3 | 3895 | break; |
252b5132 | 3896 | |
c46b7515 AM |
3897 | case R_PARISC_SEGREL32: |
3898 | /* If this is the first SEGREL relocation, then initialize | |
3899 | the segment base values. */ | |
83c81bfe AM |
3900 | if (htab->text_segment_base == (bfd_vma) -1) |
3901 | bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); | |
c46b7515 AM |
3902 | break; |
3903 | ||
30667bf3 AM |
3904 | case R_PARISC_PLABEL14R: |
3905 | case R_PARISC_PLABEL21L: | |
3906 | case R_PARISC_PLABEL32: | |
ebe50bae | 3907 | if (htab->elf.dynamic_sections_created) |
252b5132 | 3908 | { |
ce757d15 AM |
3909 | bfd_vma off; |
3910 | boolean do_plt = 0; | |
3911 | ||
74d1c347 AM |
3912 | /* If we have a global symbol with a PLT slot, then |
3913 | redirect this relocation to it. */ | |
3914 | if (h != NULL) | |
3915 | { | |
3916 | off = h->elf.plt.offset; | |
4dc86686 | 3917 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, &h->elf)) |
8dea1268 AM |
3918 | { |
3919 | /* In a non-shared link, adjust_dynamic_symbols | |
3920 | isn't called for symbols forced local. We | |
dc810e39 | 3921 | need to write out the plt entry here. */ |
8dea1268 AM |
3922 | if ((off & 1) != 0) |
3923 | off &= ~1; | |
3924 | else | |
3925 | { | |
8dea1268 | 3926 | h->elf.plt.offset |= 1; |
ce757d15 | 3927 | do_plt = 1; |
8dea1268 AM |
3928 | } |
3929 | } | |
74d1c347 AM |
3930 | } |
3931 | else | |
3932 | { | |
68fb2e56 AM |
3933 | bfd_vma *local_plt_offsets; |
3934 | ||
3935 | if (local_got_offsets == NULL) | |
3936 | abort (); | |
74d1c347 | 3937 | |
68fb2e56 AM |
3938 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3939 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3940 | |
3941 | /* As for the local .got entry case, we use the last | |
3942 | bit to record whether we've already initialised | |
3943 | this local .plt entry. */ | |
3944 | if ((off & 1) != 0) | |
3945 | off &= ~1; | |
ce757d15 AM |
3946 | else |
3947 | { | |
3948 | local_plt_offsets[r_symndx] |= 1; | |
3949 | do_plt = 1; | |
3950 | } | |
3951 | } | |
3952 | ||
3953 | if (do_plt) | |
3954 | { | |
3955 | if (info->shared) | |
3956 | { | |
3957 | /* Output a dynamic IPLT relocation for this | |
3958 | PLT entry. */ | |
3959 | Elf_Internal_Rela outrel; | |
3960 | asection *srelplt = htab->srelplt; | |
3961 | Elf32_External_Rela *loc; | |
3962 | ||
3963 | outrel.r_offset = (off | |
3964 | + htab->splt->output_offset | |
3965 | + htab->splt->output_section->vma); | |
3966 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3967 | outrel.r_addend = relocation; | |
3968 | loc = (Elf32_External_Rela *) srelplt->contents; | |
3969 | loc += srelplt->reloc_count++; | |
3970 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3971 | } | |
74d1c347 AM |
3972 | else |
3973 | { | |
3974 | bfd_put_32 (output_bfd, | |
3975 | relocation, | |
83c81bfe | 3976 | htab->splt->contents + off); |
74d1c347 | 3977 | bfd_put_32 (output_bfd, |
83c81bfe AM |
3978 | elf_gp (htab->splt->output_section->owner), |
3979 | htab->splt->contents + off + 4); | |
74d1c347 AM |
3980 | } |
3981 | } | |
3982 | ||
68fb2e56 | 3983 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3984 | abort (); |
74d1c347 AM |
3985 | |
3986 | /* PLABELs contain function pointers. Relocation is to | |
3987 | the entry for the function in the .plt. The magic +2 | |
3988 | offset signals to $$dyncall that the function pointer | |
3989 | is in the .plt and thus has a gp pointer too. | |
3990 | Exception: Undefined PLABELs should have a value of | |
3991 | zero. */ | |
3992 | if (h == NULL | |
3993 | || (h->elf.root.type != bfd_link_hash_undefweak | |
3994 | && h->elf.root.type != bfd_link_hash_undefined)) | |
3995 | { | |
3996 | relocation = (off | |
83c81bfe AM |
3997 | + htab->splt->output_offset |
3998 | + htab->splt->output_section->vma | |
74d1c347 AM |
3999 | + 2); |
4000 | } | |
4001 | plabel = 1; | |
30667bf3 AM |
4002 | } |
4003 | /* Fall through and possibly emit a dynamic relocation. */ | |
4004 | ||
4005 | case R_PARISC_DIR17F: | |
4006 | case R_PARISC_DIR17R: | |
47d89dba | 4007 | case R_PARISC_DIR14F: |
30667bf3 AM |
4008 | case R_PARISC_DIR14R: |
4009 | case R_PARISC_DIR21L: | |
4010 | case R_PARISC_DPREL14F: | |
4011 | case R_PARISC_DPREL14R: | |
4012 | case R_PARISC_DPREL21L: | |
4013 | case R_PARISC_DIR32: | |
ec338859 AM |
4014 | /* r_symndx will be zero only for relocs against symbols |
4015 | from removed linkonce sections, or sections discarded by | |
4016 | a linker script. */ | |
4017 | if (r_symndx == 0 | |
4018 | || (input_section->flags & SEC_ALLOC) == 0) | |
4019 | break; | |
4020 | ||
30667bf3 | 4021 | /* The reloc types handled here and this conditional |
56882138 | 4022 | expression must match the code in ..check_relocs and |
ec338859 | 4023 | allocate_dynrelocs. ie. We need exactly the same condition |
56882138 AM |
4024 | as in ..check_relocs, with some extra conditions (dynindx |
4025 | test in this case) to cater for relocs removed by | |
ec338859 | 4026 | allocate_dynrelocs. If you squint, the non-shared test |
56882138 AM |
4027 | here does indeed match the one in ..check_relocs, the |
4028 | difference being that here we test DEF_DYNAMIC as well as | |
4029 | !DEF_REGULAR. All common syms end up with !DEF_REGULAR, | |
4030 | which is why we can't use just that test here. | |
4031 | Conversely, DEF_DYNAMIC can't be used in check_relocs as | |
4032 | there all files have not been loaded. */ | |
446f2863 | 4033 | if ((info->shared |
446f2863 AM |
4034 | && (IS_ABSOLUTE_RELOC (r_type) |
4035 | || (h != NULL | |
4036 | && h->elf.dynindx != -1 | |
4037 | && (!info->symbolic | |
4038 | || (h->elf.elf_link_hash_flags | |
4039 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
4040 | || (!info->shared | |
446f2863 AM |
4041 | && h != NULL |
4042 | && h->elf.dynindx != -1 | |
4043 | && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
56882138 AM |
4044 | && (((h->elf.elf_link_hash_flags |
4045 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
4046 | && (h->elf.elf_link_hash_flags | |
4047 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
446f2863 AM |
4048 | || h->elf.root.type == bfd_link_hash_undefweak |
4049 | || h->elf.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
4050 | { |
4051 | Elf_Internal_Rela outrel; | |
4052 | boolean skip; | |
98ceb8ce AM |
4053 | asection *sreloc; |
4054 | Elf32_External_Rela *loc; | |
252b5132 | 4055 | |
30667bf3 AM |
4056 | /* When generating a shared object, these relocations |
4057 | are copied into the output file to be resolved at run | |
4058 | time. */ | |
252b5132 | 4059 | |
30667bf3 | 4060 | outrel.r_addend = rel->r_addend; |
c629eae0 JJ |
4061 | outrel.r_offset = |
4062 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
4063 | rel->r_offset); | |
0bb2d96a JJ |
4064 | skip = (outrel.r_offset == (bfd_vma) -1 |
4065 | || outrel.r_offset == (bfd_vma) -2); | |
30667bf3 AM |
4066 | outrel.r_offset += (input_section->output_offset |
4067 | + input_section->output_section->vma); | |
4068 | ||
4069 | if (skip) | |
252b5132 | 4070 | { |
30667bf3 | 4071 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 4072 | } |
74d1c347 AM |
4073 | else if (h != NULL |
4074 | && h->elf.dynindx != -1 | |
4075 | && (plabel | |
446f2863 AM |
4076 | || !IS_ABSOLUTE_RELOC (r_type) |
4077 | || !info->shared | |
74d1c347 | 4078 | || !info->symbolic |
30667bf3 AM |
4079 | || (h->elf.elf_link_hash_flags |
4080 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
252b5132 | 4081 | { |
30667bf3 AM |
4082 | outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type); |
4083 | } | |
4084 | else /* It's a local symbol, or one marked to become local. */ | |
4085 | { | |
4086 | int indx = 0; | |
edd21aca | 4087 | |
30667bf3 AM |
4088 | /* Add the absolute offset of the symbol. */ |
4089 | outrel.r_addend += relocation; | |
edd21aca | 4090 | |
74d1c347 AM |
4091 | /* Global plabels need to be processed by the |
4092 | dynamic linker so that functions have at most one | |
4093 | fptr. For this reason, we need to differentiate | |
4094 | between global and local plabels, which we do by | |
4095 | providing the function symbol for a global plabel | |
4096 | reloc, and no symbol for local plabels. */ | |
4097 | if (! plabel | |
4098 | && sym_sec != NULL | |
30667bf3 AM |
4099 | && sym_sec->output_section != NULL |
4100 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 4101 | { |
30667bf3 AM |
4102 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
4103 | /* We are turning this relocation into one | |
4104 | against a section symbol, so subtract out the | |
4105 | output section's address but not the offset | |
4106 | of the input section in the output section. */ | |
4107 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 4108 | } |
252b5132 | 4109 | |
30667bf3 AM |
4110 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
4111 | } | |
68fb2e56 AM |
4112 | #if 0 |
4113 | /* EH info can cause unaligned DIR32 relocs. | |
4114 | Tweak the reloc type for the dynamic linker. */ | |
4115 | if (r_type == R_PARISC_DIR32 && (outrel.r_offset & 3) != 0) | |
4116 | outrel.r_info = ELF32_R_INFO (ELF32_R_SYM (outrel.r_info), | |
4117 | R_PARISC_DIR32U); | |
4118 | #endif | |
98ceb8ce AM |
4119 | sreloc = elf_section_data (input_section)->sreloc; |
4120 | if (sreloc == NULL) | |
4121 | abort (); | |
4122 | ||
3ac8354b AM |
4123 | loc = (Elf32_External_Rela *) sreloc->contents; |
4124 | loc += sreloc->reloc_count++; | |
98ceb8ce | 4125 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
30667bf3 AM |
4126 | } |
4127 | break; | |
edd21aca | 4128 | |
30667bf3 AM |
4129 | default: |
4130 | break; | |
4131 | } | |
252b5132 | 4132 | |
30667bf3 | 4133 | r = final_link_relocate (input_section, contents, rel, relocation, |
83c81bfe | 4134 | htab, sym_sec, h); |
252b5132 | 4135 | |
30667bf3 AM |
4136 | if (r == bfd_reloc_ok) |
4137 | continue; | |
252b5132 | 4138 | |
30667bf3 AM |
4139 | if (h != NULL) |
4140 | sym_name = h->elf.root.root.string; | |
4141 | else | |
4142 | { | |
4143 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
4144 | symtab_hdr->sh_link, | |
4145 | sym->st_name); | |
4146 | if (sym_name == NULL) | |
4147 | return false; | |
4148 | if (*sym_name == '\0') | |
4149 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
4150 | } | |
edd21aca | 4151 | |
30667bf3 | 4152 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 4153 | |
30667bf3 AM |
4154 | if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported) |
4155 | { | |
f09ebc7d AM |
4156 | if (r == bfd_reloc_notsupported || !warned_undef) |
4157 | { | |
4158 | (*_bfd_error_handler) | |
4159 | (_("%s(%s+0x%lx): cannot handle %s for %s"), | |
4160 | bfd_archive_filename (input_bfd), | |
4161 | input_section->name, | |
4162 | (long) rel->r_offset, | |
4163 | howto->name, | |
4164 | sym_name); | |
4165 | bfd_set_error (bfd_error_bad_value); | |
4166 | return false; | |
4167 | } | |
30667bf3 AM |
4168 | } |
4169 | else | |
4170 | { | |
4171 | if (!((*info->callbacks->reloc_overflow) | |
4172 | (info, sym_name, howto->name, (bfd_vma) 0, | |
4173 | input_bfd, input_section, rel->r_offset))) | |
4174 | return false; | |
4175 | } | |
4176 | } | |
edd21aca | 4177 | |
30667bf3 AM |
4178 | return true; |
4179 | } | |
252b5132 | 4180 | |
30667bf3 AM |
4181 | /* Finish up dynamic symbol handling. We set the contents of various |
4182 | dynamic sections here. */ | |
252b5132 | 4183 | |
30667bf3 AM |
4184 | static boolean |
4185 | elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym) | |
4186 | bfd *output_bfd; | |
4187 | struct bfd_link_info *info; | |
4188 | struct elf_link_hash_entry *h; | |
4189 | Elf_Internal_Sym *sym; | |
4190 | { | |
83c81bfe | 4191 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 4192 | |
83c81bfe | 4193 | htab = hppa_link_hash_table (info); |
30667bf3 | 4194 | |
30667bf3 AM |
4195 | if (h->plt.offset != (bfd_vma) -1) |
4196 | { | |
4197 | bfd_vma value; | |
30667bf3 | 4198 | |
8dea1268 AM |
4199 | if (h->plt.offset & 1) |
4200 | abort (); | |
4201 | ||
30667bf3 AM |
4202 | /* This symbol has an entry in the procedure linkage table. Set |
4203 | it up. | |
4204 | ||
4205 | The format of a plt entry is | |
74d1c347 AM |
4206 | <funcaddr> |
4207 | <__gp> | |
47d89dba | 4208 | */ |
30667bf3 AM |
4209 | value = 0; |
4210 | if (h->root.type == bfd_link_hash_defined | |
4211 | || h->root.type == bfd_link_hash_defweak) | |
4212 | { | |
4213 | value = h->root.u.def.value; | |
4214 | if (h->root.u.def.section->output_section != NULL) | |
4215 | value += (h->root.u.def.section->output_offset | |
4216 | + h->root.u.def.section->output_section->vma); | |
252b5132 | 4217 | } |
edd21aca | 4218 | |
74d1c347 | 4219 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call) |
30667bf3 | 4220 | { |
47d89dba | 4221 | Elf_Internal_Rela rel; |
3ac8354b | 4222 | Elf32_External_Rela *loc; |
47d89dba | 4223 | |
30667bf3 AM |
4224 | /* Create a dynamic IPLT relocation for this entry. */ |
4225 | rel.r_offset = (h->plt.offset | |
83c81bfe AM |
4226 | + htab->splt->output_offset |
4227 | + htab->splt->output_section->vma); | |
ce757d15 | 4228 | if (h->dynindx != -1) |
74d1c347 AM |
4229 | { |
4230 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT); | |
4231 | rel.r_addend = 0; | |
4232 | } | |
4233 | else | |
4234 | { | |
4235 | /* This symbol has been marked to become local, and is | |
4236 | used by a plabel so must be kept in the .plt. */ | |
4237 | rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
4238 | rel.r_addend = value; | |
4239 | } | |
30667bf3 | 4240 | |
3ac8354b AM |
4241 | loc = (Elf32_External_Rela *) htab->srelplt->contents; |
4242 | loc += htab->srelplt->reloc_count++; | |
83c81bfe | 4243 | bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, |
3ac8354b | 4244 | &rel, loc); |
30667bf3 | 4245 | } |
ce757d15 | 4246 | else |
47d89dba | 4247 | { |
ce757d15 AM |
4248 | bfd_put_32 (htab->splt->owner, |
4249 | value, | |
4250 | htab->splt->contents + h->plt.offset); | |
4251 | bfd_put_32 (htab->splt->owner, | |
4252 | elf_gp (htab->splt->output_section->owner), | |
4253 | htab->splt->contents + h->plt.offset + 4); | |
47d89dba AM |
4254 | } |
4255 | ||
30667bf3 AM |
4256 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
4257 | { | |
4258 | /* Mark the symbol as undefined, rather than as defined in | |
4259 | the .plt section. Leave the value alone. */ | |
4260 | sym->st_shndx = SHN_UNDEF; | |
4261 | } | |
4262 | } | |
edd21aca | 4263 | |
30667bf3 AM |
4264 | if (h->got.offset != (bfd_vma) -1) |
4265 | { | |
4266 | Elf_Internal_Rela rel; | |
3ac8354b | 4267 | Elf32_External_Rela *loc; |
30667bf3 AM |
4268 | |
4269 | /* This symbol has an entry in the global offset table. Set it | |
4270 | up. */ | |
4271 | ||
4272 | rel.r_offset = ((h->got.offset &~ (bfd_vma) 1) | |
83c81bfe AM |
4273 | + htab->sgot->output_offset |
4274 | + htab->sgot->output_section->vma); | |
30667bf3 | 4275 | |
4dc86686 AM |
4276 | /* If this is a -Bsymbolic link and the symbol is defined |
4277 | locally or was forced to be local because of a version file, | |
4278 | we just want to emit a RELATIVE reloc. The entry in the | |
4279 | global offset table will already have been initialized in the | |
4280 | relocate_section function. */ | |
4281 | if (info->shared | |
4282 | && (info->symbolic || h->dynindx == -1) | |
4283 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
30667bf3 | 4284 | { |
74d1c347 | 4285 | rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
4286 | rel.r_addend = (h->root.u.def.value |
4287 | + h->root.u.def.section->output_offset | |
4288 | + h->root.u.def.section->output_section->vma); | |
4289 | } | |
4290 | else | |
4291 | { | |
49e9d0d3 AM |
4292 | if ((h->got.offset & 1) != 0) |
4293 | abort (); | |
30667bf3 | 4294 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
83c81bfe | 4295 | htab->sgot->contents + h->got.offset); |
30667bf3 AM |
4296 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32); |
4297 | rel.r_addend = 0; | |
4298 | } | |
edd21aca | 4299 | |
3ac8354b AM |
4300 | loc = (Elf32_External_Rela *) htab->srelgot->contents; |
4301 | loc += htab->srelgot->reloc_count++; | |
4302 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 | 4303 | } |
edd21aca | 4304 | |
30667bf3 AM |
4305 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
4306 | { | |
4307 | asection *s; | |
4308 | Elf_Internal_Rela rel; | |
3ac8354b | 4309 | Elf32_External_Rela *loc; |
30667bf3 AM |
4310 | |
4311 | /* This symbol needs a copy reloc. Set it up. */ | |
4312 | ||
49e9d0d3 AM |
4313 | if (! (h->dynindx != -1 |
4314 | && (h->root.type == bfd_link_hash_defined | |
4315 | || h->root.type == bfd_link_hash_defweak))) | |
4316 | abort (); | |
30667bf3 | 4317 | |
83c81bfe | 4318 | s = htab->srelbss; |
30667bf3 AM |
4319 | |
4320 | rel.r_offset = (h->root.u.def.value | |
4321 | + h->root.u.def.section->output_offset | |
4322 | + h->root.u.def.section->output_section->vma); | |
4323 | rel.r_addend = 0; | |
4324 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY); | |
3ac8354b AM |
4325 | loc = (Elf32_External_Rela *) s->contents + s->reloc_count++; |
4326 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 AM |
4327 | } |
4328 | ||
4329 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
4330 | if (h->root.root.string[0] == '_' | |
4331 | && (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4332 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)) | |
4333 | { | |
4334 | sym->st_shndx = SHN_ABS; | |
4335 | } | |
4336 | ||
4337 | return true; | |
4338 | } | |
4339 | ||
98ceb8ce AM |
4340 | /* Used to decide how to sort relocs in an optimal manner for the |
4341 | dynamic linker, before writing them out. */ | |
4342 | ||
4343 | static enum elf_reloc_type_class | |
4344 | elf32_hppa_reloc_type_class (rela) | |
4345 | const Elf_Internal_Rela *rela; | |
4346 | { | |
4347 | if (ELF32_R_SYM (rela->r_info) == 0) | |
4348 | return reloc_class_relative; | |
4349 | ||
4350 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4351 | { | |
4352 | case R_PARISC_IPLT: | |
4353 | return reloc_class_plt; | |
4354 | case R_PARISC_COPY: | |
4355 | return reloc_class_copy; | |
4356 | default: | |
4357 | return reloc_class_normal; | |
4358 | } | |
4359 | } | |
4360 | ||
30667bf3 AM |
4361 | /* Finish up the dynamic sections. */ |
4362 | ||
4363 | static boolean | |
4364 | elf32_hppa_finish_dynamic_sections (output_bfd, info) | |
4365 | bfd *output_bfd; | |
4366 | struct bfd_link_info *info; | |
4367 | { | |
4368 | bfd *dynobj; | |
83c81bfe | 4369 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
4370 | asection *sdyn; |
4371 | ||
83c81bfe | 4372 | htab = hppa_link_hash_table (info); |
ebe50bae | 4373 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
4374 | |
4375 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4376 | ||
ebe50bae | 4377 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
4378 | { |
4379 | Elf32_External_Dyn *dyncon, *dynconend; | |
4380 | ||
49e9d0d3 AM |
4381 | if (sdyn == NULL) |
4382 | abort (); | |
30667bf3 AM |
4383 | |
4384 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
4385 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4386 | for (; dyncon < dynconend; dyncon++) | |
edd21aca | 4387 | { |
30667bf3 AM |
4388 | Elf_Internal_Dyn dyn; |
4389 | asection *s; | |
4390 | ||
4391 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4392 | ||
4393 | switch (dyn.d_tag) | |
4394 | { | |
4395 | default: | |
3ac8354b | 4396 | continue; |
30667bf3 AM |
4397 | |
4398 | case DT_PLTGOT: | |
4399 | /* Use PLTGOT to set the GOT register. */ | |
4400 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
30667bf3 AM |
4401 | break; |
4402 | ||
4403 | case DT_JMPREL: | |
83c81bfe | 4404 | s = htab->srelplt; |
30667bf3 | 4405 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
30667bf3 AM |
4406 | break; |
4407 | ||
4408 | case DT_PLTRELSZ: | |
83c81bfe | 4409 | s = htab->srelplt; |
30667bf3 AM |
4410 | if (s->_cooked_size != 0) |
4411 | dyn.d_un.d_val = s->_cooked_size; | |
4412 | else | |
4413 | dyn.d_un.d_val = s->_raw_size; | |
30667bf3 | 4414 | break; |
4e12ff7f AM |
4415 | |
4416 | case DT_RELASZ: | |
4417 | /* Don't count procedure linkage table relocs in the | |
4418 | overall reloc count. */ | |
4419 | if (htab->srelplt != NULL) | |
4420 | { | |
4421 | s = htab->srelplt->output_section; | |
4422 | if (s->_cooked_size != 0) | |
4423 | dyn.d_un.d_val -= s->_cooked_size; | |
4424 | else | |
4425 | dyn.d_un.d_val -= s->_raw_size; | |
4426 | } | |
4427 | break; | |
30667bf3 | 4428 | } |
3ac8354b AM |
4429 | |
4430 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
edd21aca | 4431 | } |
252b5132 | 4432 | } |
edd21aca | 4433 | |
83c81bfe | 4434 | if (htab->sgot != NULL && htab->sgot->_raw_size != 0) |
30667bf3 | 4435 | { |
74d1c347 AM |
4436 | /* Fill in the first entry in the global offset table. |
4437 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 AM |
4438 | bfd_put_32 (output_bfd, |
4439 | (sdyn != NULL | |
4440 | ? sdyn->output_section->vma + sdyn->output_offset | |
4441 | : (bfd_vma) 0), | |
83c81bfe | 4442 | htab->sgot->contents); |
30667bf3 | 4443 | |
74d1c347 | 4444 | /* The second entry is reserved for use by the dynamic linker. */ |
83c81bfe | 4445 | memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4446 | |
30667bf3 | 4447 | /* Set .got entry size. */ |
83c81bfe | 4448 | elf_section_data (htab->sgot->output_section) |
74d1c347 | 4449 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; |
30667bf3 AM |
4450 | } |
4451 | ||
83c81bfe | 4452 | if (htab->splt != NULL && htab->splt->_raw_size != 0) |
47d89dba AM |
4453 | { |
4454 | /* Set plt entry size. */ | |
83c81bfe | 4455 | elf_section_data (htab->splt->output_section) |
47d89dba AM |
4456 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; |
4457 | ||
83c81bfe | 4458 | if (htab->need_plt_stub) |
47d89dba AM |
4459 | { |
4460 | /* Set up the .plt stub. */ | |
83c81bfe AM |
4461 | memcpy (htab->splt->contents |
4462 | + htab->splt->_raw_size - sizeof (plt_stub), | |
47d89dba AM |
4463 | plt_stub, sizeof (plt_stub)); |
4464 | ||
83c81bfe AM |
4465 | if ((htab->splt->output_offset |
4466 | + htab->splt->output_section->vma | |
4467 | + htab->splt->_raw_size) | |
4468 | != (htab->sgot->output_offset | |
4469 | + htab->sgot->output_section->vma)) | |
47d89dba AM |
4470 | { |
4471 | (*_bfd_error_handler) | |
4472 | (_(".got section not immediately after .plt section")); | |
4473 | return false; | |
4474 | } | |
4475 | } | |
4476 | } | |
30667bf3 | 4477 | |
252b5132 | 4478 | return true; |
30667bf3 | 4479 | } |
252b5132 | 4480 | |
d952f17a AM |
4481 | /* Tweak the OSABI field of the elf header. */ |
4482 | ||
4483 | static void | |
4484 | elf32_hppa_post_process_headers (abfd, link_info) | |
4485 | bfd *abfd; | |
4486 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
4487 | { | |
4488 | Elf_Internal_Ehdr * i_ehdrp; | |
4489 | ||
4490 | i_ehdrp = elf_elfheader (abfd); | |
4491 | ||
4492 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
4493 | { | |
4494 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
4495 | } | |
4496 | else | |
4497 | { | |
4498 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; | |
4499 | } | |
4500 | } | |
4501 | ||
30667bf3 AM |
4502 | /* Called when writing out an object file to decide the type of a |
4503 | symbol. */ | |
4504 | static int | |
4505 | elf32_hppa_elf_get_symbol_type (elf_sym, type) | |
4506 | Elf_Internal_Sym *elf_sym; | |
4507 | int type; | |
4508 | { | |
4509 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4510 | return STT_PARISC_MILLI; | |
4511 | else | |
4512 | return type; | |
252b5132 RH |
4513 | } |
4514 | ||
4515 | /* Misc BFD support code. */ | |
30667bf3 AM |
4516 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4517 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4518 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4519 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4520 | |
252b5132 | 4521 | /* Stuff for the BFD linker. */ |
c46b7515 | 4522 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 | 4523 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
e2d34d7d | 4524 | #define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free |
30667bf3 AM |
4525 | #define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook |
4526 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol | |
ebe50bae | 4527 | #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol |
30667bf3 AM |
4528 | #define elf_backend_check_relocs elf32_hppa_check_relocs |
4529 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4530 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4531 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4532 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4533 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4534 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4535 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4536 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4537 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
4538 | #define elf_backend_object_p elf32_hppa_object_p | |
4539 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d952f17a | 4540 | #define elf_backend_post_process_headers elf32_hppa_post_process_headers |
30667bf3 | 4541 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
98ceb8ce | 4542 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
30667bf3 AM |
4543 | |
4544 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4545 | #define elf_backend_can_refcount 1 |
30667bf3 AM |
4546 | #define elf_backend_plt_alignment 2 |
4547 | #define elf_backend_want_got_plt 0 | |
4548 | #define elf_backend_plt_readonly 0 | |
4549 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4550 | #define elf_backend_got_header_size 8 |
252b5132 RH |
4551 | |
4552 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4553 | #define TARGET_BIG_NAME "elf32-hppa" | |
4554 | #define ELF_ARCH bfd_arch_hppa | |
4555 | #define ELF_MACHINE_CODE EM_PARISC | |
4556 | #define ELF_MAXPAGESIZE 0x1000 | |
4557 | ||
4558 | #include "elf32-target.h" | |
d952f17a AM |
4559 | |
4560 | #undef TARGET_BIG_SYM | |
4561 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec | |
4562 | #undef TARGET_BIG_NAME | |
4563 | #define TARGET_BIG_NAME "elf32-hppa-linux" | |
4564 | ||
4565 | #define INCLUDED_TARGET_FILE 1 | |
4566 | #include "elf32-target.h" |