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 | { | |
d4c88bbb | 646 | size_t namelen; |
dc810e39 | 647 | bfd_size_type len; |
30667bf3 AM |
648 | char *s_name; |
649 | ||
d4c88bbb AM |
650 | namelen = strlen (link_sec->name); |
651 | len = namelen + sizeof (STUB_SUFFIX); | |
83c81bfe | 652 | s_name = bfd_alloc (htab->stub_bfd, len); |
30667bf3 AM |
653 | if (s_name == NULL) |
654 | return NULL; | |
655 | ||
d4c88bbb AM |
656 | memcpy (s_name, link_sec->name, namelen); |
657 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
83c81bfe | 658 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
659 | if (stub_sec == NULL) |
660 | return NULL; | |
83c81bfe | 661 | htab->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 662 | } |
83c81bfe | 663 | htab->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 664 | } |
252b5132 | 665 | |
30667bf3 | 666 | /* Enter this entry into the linker stub hash table. */ |
83c81bfe | 667 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
30667bf3 AM |
668 | true, false); |
669 | if (stub_entry == NULL) | |
670 | { | |
671 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
8f615d07 | 672 | bfd_archive_filename (section->owner), |
30667bf3 AM |
673 | stub_name); |
674 | return NULL; | |
edd21aca AM |
675 | } |
676 | ||
30667bf3 | 677 | stub_entry->stub_sec = stub_sec; |
30667bf3 | 678 | stub_entry->stub_offset = 0; |
25f72752 | 679 | stub_entry->id_sec = link_sec; |
30667bf3 | 680 | return stub_entry; |
edd21aca AM |
681 | } |
682 | ||
30667bf3 AM |
683 | /* Determine the type of stub needed, if any, for a call. */ |
684 | ||
685 | static enum elf32_hppa_stub_type | |
686 | hppa_type_of_stub (input_sec, rel, hash, destination) | |
687 | asection *input_sec; | |
688 | const Elf_Internal_Rela *rel; | |
689 | struct elf32_hppa_link_hash_entry *hash; | |
690 | bfd_vma destination; | |
edd21aca | 691 | { |
edd21aca | 692 | bfd_vma location; |
30667bf3 AM |
693 | bfd_vma branch_offset; |
694 | bfd_vma max_branch_offset; | |
695 | unsigned int r_type; | |
696 | ||
697 | if (hash != NULL | |
067fa4a6 AM |
698 | && hash->elf.plt.offset != (bfd_vma) -1 |
699 | && (hash->elf.dynindx != -1 || hash->pic_call) | |
700 | && !hash->plabel) | |
30667bf3 | 701 | { |
067fa4a6 AM |
702 | /* We need an import stub. Decide between hppa_stub_import |
703 | and hppa_stub_import_shared later. */ | |
30667bf3 AM |
704 | return hppa_stub_import; |
705 | } | |
edd21aca | 706 | |
30667bf3 AM |
707 | /* Determine where the call point is. */ |
708 | location = (input_sec->output_offset | |
709 | + input_sec->output_section->vma | |
710 | + rel->r_offset); | |
edd21aca | 711 | |
30667bf3 AM |
712 | branch_offset = destination - location - 8; |
713 | r_type = ELF32_R_TYPE (rel->r_info); | |
edd21aca | 714 | |
30667bf3 AM |
715 | /* Determine if a long branch stub is needed. parisc branch offsets |
716 | are relative to the second instruction past the branch, ie. +8 | |
717 | bytes on from the branch instruction location. The offset is | |
718 | signed and counts in units of 4 bytes. */ | |
719 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 720 | { |
30667bf3 AM |
721 | max_branch_offset = (1 << (17-1)) << 2; |
722 | } | |
723 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
724 | { | |
725 | max_branch_offset = (1 << (12-1)) << 2; | |
726 | } | |
25f72752 | 727 | else /* R_PARISC_PCREL22F. */ |
30667bf3 AM |
728 | { |
729 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
730 | } |
731 | ||
30667bf3 | 732 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
733 | return hppa_stub_long_branch; |
734 | ||
30667bf3 AM |
735 | return hppa_stub_none; |
736 | } | |
edd21aca | 737 | |
30667bf3 AM |
738 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
739 | IN_ARG contains the link info pointer. */ | |
edd21aca | 740 | |
30667bf3 AM |
741 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
742 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 743 | |
30667bf3 | 744 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 745 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 746 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 747 | |
3ee1d854 AM |
748 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
749 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 750 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 751 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 752 | |
3ee1d854 AM |
753 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
754 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 755 | |
30667bf3 AM |
756 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
757 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
758 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
759 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 760 | |
067fa4a6 | 761 | #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */ |
30667bf3 AM |
762 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
763 | #define NOP 0x08000240 /* nop */ | |
764 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
765 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
766 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 767 | |
30667bf3 AM |
768 | #ifndef R19_STUBS |
769 | #define R19_STUBS 1 | |
770 | #endif | |
edd21aca | 771 | |
30667bf3 AM |
772 | #if R19_STUBS |
773 | #define LDW_R1_DLT LDW_R1_R19 | |
774 | #else | |
775 | #define LDW_R1_DLT LDW_R1_DP | |
776 | #endif | |
edd21aca | 777 | |
30667bf3 AM |
778 | static boolean |
779 | hppa_build_one_stub (gen_entry, in_arg) | |
780 | struct bfd_hash_entry *gen_entry; | |
781 | PTR in_arg; | |
782 | { | |
783 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
784 | struct bfd_link_info *info; | |
83c81bfe | 785 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
786 | asection *stub_sec; |
787 | bfd *stub_bfd; | |
788 | bfd_byte *loc; | |
789 | bfd_vma sym_value; | |
74d1c347 | 790 | bfd_vma insn; |
8dea1268 | 791 | bfd_vma off; |
74d1c347 | 792 | int val; |
30667bf3 | 793 | int size; |
edd21aca | 794 | |
30667bf3 AM |
795 | /* Massage our args to the form they really have. */ |
796 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
797 | info = (struct bfd_link_info *) in_arg; | |
798 | ||
83c81bfe | 799 | htab = hppa_link_hash_table (info); |
30667bf3 | 800 | stub_sec = stub_entry->stub_sec; |
edd21aca | 801 | |
30667bf3 | 802 | /* Make a note of the offset within the stubs for this entry. */ |
74d1c347 | 803 | stub_entry->stub_offset = stub_sec->_raw_size; |
30667bf3 | 804 | loc = stub_sec->contents + stub_entry->stub_offset; |
252b5132 | 805 | |
30667bf3 AM |
806 | stub_bfd = stub_sec->owner; |
807 | ||
808 | switch (stub_entry->stub_type) | |
809 | { | |
810 | case hppa_stub_long_branch: | |
811 | /* Create the long branch. A long branch is formed with "ldil" | |
812 | loading the upper bits of the target address into a register, | |
813 | then branching with "be" which adds in the lower bits. | |
814 | The "be" has its delay slot nullified. */ | |
815 | sym_value = (stub_entry->target_value | |
816 | + stub_entry->target_section->output_offset | |
817 | + stub_entry->target_section->output_section->vma); | |
818 | ||
74d1c347 AM |
819 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel); |
820 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); | |
30667bf3 AM |
821 | bfd_put_32 (stub_bfd, insn, loc); |
822 | ||
74d1c347 AM |
823 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel) >> 2; |
824 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); | |
30667bf3 AM |
825 | bfd_put_32 (stub_bfd, insn, loc + 4); |
826 | ||
30667bf3 | 827 | size = 8; |
edd21aca AM |
828 | break; |
829 | ||
30667bf3 AM |
830 | case hppa_stub_long_branch_shared: |
831 | /* Branches are relative. This is where we are going to. */ | |
832 | sym_value = (stub_entry->target_value | |
833 | + stub_entry->target_section->output_offset | |
834 | + stub_entry->target_section->output_section->vma); | |
835 | ||
836 | /* And this is where we are coming from, more or less. */ | |
837 | sym_value -= (stub_entry->stub_offset | |
838 | + stub_sec->output_offset | |
839 | + stub_sec->output_section->vma); | |
840 | ||
74d1c347 | 841 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 842 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 843 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
844 | bfd_put_32 (stub_bfd, insn, loc + 4); |
845 | ||
47d89dba | 846 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 847 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
848 | bfd_put_32 (stub_bfd, insn, loc + 8); |
849 | size = 12; | |
850 | break; | |
edd21aca | 851 | |
30667bf3 AM |
852 | case hppa_stub_import: |
853 | case hppa_stub_import_shared: | |
8dea1268 AM |
854 | off = stub_entry->h->elf.plt.offset; |
855 | if (off >= (bfd_vma) -2) | |
49e9d0d3 | 856 | abort (); |
8dea1268 AM |
857 | |
858 | off &= ~ (bfd_vma) 1; | |
859 | sym_value = (off | |
83c81bfe AM |
860 | + htab->splt->output_offset |
861 | + htab->splt->output_section->vma | |
862 | - elf_gp (htab->splt->output_section->owner)); | |
30667bf3 AM |
863 | |
864 | insn = ADDIL_DP; | |
865 | #if R19_STUBS | |
866 | if (stub_entry->stub_type == hppa_stub_import_shared) | |
867 | insn = ADDIL_R19; | |
868 | #endif | |
47d89dba | 869 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel), |
74d1c347 | 870 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 871 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 872 | |
47d89dba AM |
873 | /* It is critical to use lrsel/rrsel here because we are using |
874 | two different offsets (+0 and +4) from sym_value. If we use | |
875 | lsel/rsel then with unfortunate sym_values we will round | |
876 | sym_value+4 up to the next 2k block leading to a mis-match | |
877 | between the lsel and rsel value. */ | |
878 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel); | |
74d1c347 | 879 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 880 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 881 | |
83c81bfe | 882 | if (htab->multi_subspace) |
30667bf3 | 883 | { |
47d89dba | 884 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 885 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 886 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 887 | |
74d1c347 AM |
888 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
889 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
890 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
891 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 892 | |
30667bf3 AM |
893 | size = 28; |
894 | } | |
895 | else | |
896 | { | |
74d1c347 | 897 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 898 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 899 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 900 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 901 | |
30667bf3 AM |
902 | size = 16; |
903 | } | |
252b5132 | 904 | |
30667bf3 AM |
905 | if (!info->shared |
906 | && stub_entry->h != NULL | |
907 | && stub_entry->h->pic_call) | |
252b5132 | 908 | { |
30667bf3 AM |
909 | /* Build the .plt entry needed to call a PIC function from |
910 | statically linked code. We don't need any relocs. */ | |
911 | bfd *dynobj; | |
912 | struct elf32_hppa_link_hash_entry *eh; | |
913 | bfd_vma value; | |
252b5132 | 914 | |
ebe50bae | 915 | dynobj = htab->elf.dynobj; |
30667bf3 | 916 | eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h; |
252b5132 | 917 | |
49e9d0d3 AM |
918 | if (eh->elf.root.type != bfd_link_hash_defined |
919 | && eh->elf.root.type != bfd_link_hash_defweak) | |
920 | abort (); | |
252b5132 | 921 | |
30667bf3 AM |
922 | value = (eh->elf.root.u.def.value |
923 | + eh->elf.root.u.def.section->output_offset | |
924 | + eh->elf.root.u.def.section->output_section->vma); | |
252b5132 | 925 | |
30667bf3 | 926 | /* Fill in the entry in the procedure linkage table. |
252b5132 | 927 | |
30667bf3 | 928 | The format of a plt entry is |
74d1c347 AM |
929 | <funcaddr> |
930 | <__gp>. */ | |
252b5132 | 931 | |
83c81bfe AM |
932 | bfd_put_32 (htab->splt->owner, value, |
933 | htab->splt->contents + off); | |
934 | value = elf_gp (htab->splt->output_section->owner); | |
935 | bfd_put_32 (htab->splt->owner, value, | |
936 | htab->splt->contents + off + 4); | |
252b5132 | 937 | } |
30667bf3 | 938 | break; |
252b5132 | 939 | |
30667bf3 AM |
940 | case hppa_stub_export: |
941 | /* Branches are relative. This is where we are going to. */ | |
942 | sym_value = (stub_entry->target_value | |
943 | + stub_entry->target_section->output_offset | |
944 | + stub_entry->target_section->output_section->vma); | |
252b5132 | 945 | |
30667bf3 AM |
946 | /* And this is where we are coming from. */ |
947 | sym_value -= (stub_entry->stub_offset | |
948 | + stub_sec->output_offset | |
949 | + stub_sec->output_section->vma); | |
edd21aca | 950 | |
067fa4a6 AM |
951 | if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2)) |
952 | && (!htab->has_22bit_branch | |
953 | || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2)))) | |
30667bf3 | 954 | { |
edd21aca | 955 | (*_bfd_error_handler) |
30667bf3 | 956 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
8f615d07 | 957 | bfd_archive_filename (stub_entry->target_section->owner), |
30667bf3 AM |
958 | stub_sec->name, |
959 | (long) stub_entry->stub_offset, | |
960 | stub_entry->root.string); | |
961 | bfd_set_error (bfd_error_bad_value); | |
edd21aca | 962 | return false; |
252b5132 | 963 | } |
30667bf3 | 964 | |
74d1c347 | 965 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
067fa4a6 AM |
966 | if (!htab->has_22bit_branch) |
967 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
968 | else | |
969 | insn = hppa_rebuild_insn ((int) BL22_RP, val, 22); | |
30667bf3 AM |
970 | bfd_put_32 (stub_bfd, insn, loc); |
971 | ||
74d1c347 AM |
972 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
973 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
974 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
975 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
976 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
977 | |
978 | /* Point the function symbol at the stub. */ | |
979 | stub_entry->h->elf.root.u.def.section = stub_sec; | |
74d1c347 | 980 | stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size; |
30667bf3 AM |
981 | |
982 | size = 24; | |
983 | break; | |
984 | ||
985 | default: | |
986 | BFD_FAIL (); | |
987 | return false; | |
252b5132 RH |
988 | } |
989 | ||
74d1c347 | 990 | stub_sec->_raw_size += size; |
252b5132 RH |
991 | return true; |
992 | } | |
993 | ||
30667bf3 AM |
994 | #undef LDIL_R1 |
995 | #undef BE_SR4_R1 | |
996 | #undef BL_R1 | |
997 | #undef ADDIL_R1 | |
998 | #undef DEPI_R1 | |
999 | #undef ADDIL_DP | |
1000 | #undef LDW_R1_R21 | |
1001 | #undef LDW_R1_DLT | |
1002 | #undef LDW_R1_R19 | |
1003 | #undef ADDIL_R19 | |
1004 | #undef LDW_R1_DP | |
1005 | #undef LDSID_R21_R1 | |
1006 | #undef MTSP_R1 | |
1007 | #undef BE_SR0_R21 | |
1008 | #undef STW_RP | |
1009 | #undef BV_R0_R21 | |
1010 | #undef BL_RP | |
1011 | #undef NOP | |
1012 | #undef LDW_RP | |
1013 | #undef LDSID_RP_R1 | |
1014 | #undef BE_SR0_RP | |
252b5132 | 1015 | |
30667bf3 AM |
1016 | /* As above, but don't actually build the stub. Just bump offset so |
1017 | we know stub section sizes. */ | |
1018 | ||
1019 | static boolean | |
1020 | hppa_size_one_stub (gen_entry, in_arg) | |
1021 | struct bfd_hash_entry *gen_entry; | |
1022 | PTR in_arg; | |
252b5132 | 1023 | { |
30667bf3 | 1024 | struct elf32_hppa_stub_hash_entry *stub_entry; |
83c81bfe | 1025 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1026 | int size; |
1027 | ||
1028 | /* Massage our args to the form they really have. */ | |
1029 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
83c81bfe | 1030 | htab = (struct elf32_hppa_link_hash_table *) in_arg; |
30667bf3 AM |
1031 | |
1032 | if (stub_entry->stub_type == hppa_stub_long_branch) | |
98ceb8ce | 1033 | size = 8; |
30667bf3 AM |
1034 | else if (stub_entry->stub_type == hppa_stub_long_branch_shared) |
1035 | size = 12; | |
1036 | else if (stub_entry->stub_type == hppa_stub_export) | |
1037 | size = 24; | |
74d1c347 | 1038 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 1039 | { |
83c81bfe | 1040 | if (htab->multi_subspace) |
30667bf3 AM |
1041 | size = 28; |
1042 | else | |
1043 | size = 16; | |
1044 | } | |
252b5132 | 1045 | |
74d1c347 | 1046 | stub_entry->stub_sec->_raw_size += size; |
30667bf3 AM |
1047 | return true; |
1048 | } | |
252b5132 | 1049 | |
30667bf3 AM |
1050 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
1051 | Additionally we set the default architecture and machine. */ | |
1052 | ||
1053 | static boolean | |
1054 | elf32_hppa_object_p (abfd) | |
1055 | bfd *abfd; | |
1056 | { | |
24a5e751 L |
1057 | Elf_Internal_Ehdr * i_ehdrp; |
1058 | unsigned int flags; | |
252b5132 | 1059 | |
24a5e751 L |
1060 | i_ehdrp = elf_elfheader (abfd); |
1061 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
1062 | { | |
1063 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX) | |
1064 | return false; | |
1065 | } | |
1066 | else | |
1067 | { | |
1068 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
1069 | return false; | |
1070 | } | |
1071 | ||
1072 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
1073 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
1074 | { | |
1075 | case EFA_PARISC_1_0: | |
1076 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
1077 | case EFA_PARISC_1_1: | |
1078 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
1079 | case EFA_PARISC_2_0: | |
1080 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
1081 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
1082 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
1083 | } | |
1084 | return true; | |
252b5132 RH |
1085 | } |
1086 | ||
252b5132 RH |
1087 | /* Undo the generic ELF code's subtraction of section->vma from the |
1088 | value of each external symbol. */ | |
1089 | ||
1090 | static boolean | |
1091 | elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
5f771d47 ILT |
1092 | bfd *abfd ATTRIBUTE_UNUSED; |
1093 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1094 | const Elf_Internal_Sym *sym ATTRIBUTE_UNUSED; | |
1095 | const char **namep ATTRIBUTE_UNUSED; | |
1096 | flagword *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
1097 | asection **secp; |
1098 | bfd_vma *valp; | |
1099 | { | |
1100 | *valp += (*secp)->vma; | |
1101 | return true; | |
1102 | } | |
1103 | ||
30667bf3 AM |
1104 | /* Create the .plt and .got sections, and set up our hash table |
1105 | short-cuts to various dynamic sections. */ | |
1106 | ||
1107 | static boolean | |
1108 | elf32_hppa_create_dynamic_sections (abfd, info) | |
1109 | bfd *abfd; | |
1110 | struct bfd_link_info *info; | |
252b5132 | 1111 | { |
83c81bfe | 1112 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 1113 | |
30667bf3 | 1114 | /* Don't try to create the .plt and .got twice. */ |
83c81bfe AM |
1115 | htab = hppa_link_hash_table (info); |
1116 | if (htab->splt != NULL) | |
30667bf3 | 1117 | return true; |
edd21aca | 1118 | |
30667bf3 AM |
1119 | /* Call the generic code to do most of the work. */ |
1120 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
1121 | return false; | |
252b5132 | 1122 | |
83c81bfe AM |
1123 | htab->splt = bfd_get_section_by_name (abfd, ".plt"); |
1124 | htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
30667bf3 | 1125 | |
83c81bfe AM |
1126 | htab->sgot = bfd_get_section_by_name (abfd, ".got"); |
1127 | htab->srelgot = bfd_make_section (abfd, ".rela.got"); | |
1128 | if (htab->srelgot == NULL | |
1129 | || ! bfd_set_section_flags (abfd, htab->srelgot, | |
30667bf3 AM |
1130 | (SEC_ALLOC |
1131 | | SEC_LOAD | |
1132 | | SEC_HAS_CONTENTS | |
1133 | | SEC_IN_MEMORY | |
1134 | | SEC_LINKER_CREATED | |
1135 | | SEC_READONLY)) | |
83c81bfe | 1136 | || ! bfd_set_section_alignment (abfd, htab->srelgot, 2)) |
30667bf3 | 1137 | return false; |
edd21aca | 1138 | |
83c81bfe AM |
1139 | htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
1140 | htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
30667bf3 AM |
1141 | |
1142 | return true; | |
1143 | } | |
1144 | ||
ebe50bae AM |
1145 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1146 | ||
51b64d56 | 1147 | static void |
ebe50bae AM |
1148 | elf32_hppa_copy_indirect_symbol (dir, ind) |
1149 | struct elf_link_hash_entry *dir, *ind; | |
1150 | { | |
1151 | struct elf32_hppa_link_hash_entry *edir, *eind; | |
1152 | ||
1153 | edir = (struct elf32_hppa_link_hash_entry *) dir; | |
1154 | eind = (struct elf32_hppa_link_hash_entry *) ind; | |
1155 | ||
bbd7ec4a | 1156 | if (eind->dyn_relocs != NULL) |
ebe50bae | 1157 | { |
bbd7ec4a AM |
1158 | if (edir->dyn_relocs != NULL) |
1159 | { | |
1160 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1161 | struct elf32_hppa_dyn_reloc_entry *p; | |
1162 | ||
1e370bd2 | 1163 | if (ind->root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
1164 | abort (); |
1165 | ||
1166 | /* Add reloc counts against the weak sym to the strong sym | |
1167 | list. Merge any entries against the same section. */ | |
1168 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
1169 | { | |
1170 | struct elf32_hppa_dyn_reloc_entry *q; | |
1171 | ||
1172 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
1173 | if (q->sec == p->sec) | |
1174 | { | |
1175 | #if RELATIVE_DYNRELOCS | |
1176 | q->relative_count += p->relative_count; | |
1177 | #endif | |
1178 | q->count += p->count; | |
1179 | *pp = p->next; | |
1180 | break; | |
1181 | } | |
1182 | if (q == NULL) | |
1183 | pp = &p->next; | |
1184 | } | |
1185 | *pp = edir->dyn_relocs; | |
1186 | } | |
1187 | ||
ebe50bae AM |
1188 | edir->dyn_relocs = eind->dyn_relocs; |
1189 | eind->dyn_relocs = NULL; | |
1190 | } | |
ebe50bae AM |
1191 | |
1192 | _bfd_elf_link_hash_copy_indirect (dir, ind); | |
1193 | } | |
1194 | ||
30667bf3 | 1195 | /* Look through the relocs for a section during the first phase, and |
3ac8354b AM |
1196 | calculate needed space in the global offset table, procedure linkage |
1197 | table, and dynamic reloc sections. At this point we haven't | |
1198 | necessarily read all the input files. */ | |
252b5132 RH |
1199 | |
1200 | static boolean | |
30667bf3 AM |
1201 | elf32_hppa_check_relocs (abfd, info, sec, relocs) |
1202 | bfd *abfd; | |
1203 | struct bfd_link_info *info; | |
1204 | asection *sec; | |
1205 | const Elf_Internal_Rela *relocs; | |
252b5132 | 1206 | { |
30667bf3 AM |
1207 | Elf_Internal_Shdr *symtab_hdr; |
1208 | struct elf_link_hash_entry **sym_hashes; | |
30667bf3 AM |
1209 | const Elf_Internal_Rela *rel; |
1210 | const Elf_Internal_Rela *rel_end; | |
83c81bfe | 1211 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1212 | asection *sreloc; |
1213 | asection *stubreloc; | |
1214 | ||
1215 | if (info->relocateable) | |
1216 | return true; | |
1217 | ||
83c81bfe | 1218 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1219 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1220 | sym_hashes = elf_sym_hashes (abfd); | |
30667bf3 AM |
1221 | sreloc = NULL; |
1222 | stubreloc = NULL; | |
1223 | ||
1224 | rel_end = relocs + sec->reloc_count; | |
1225 | for (rel = relocs; rel < rel_end; rel++) | |
1226 | { | |
1227 | enum { | |
1228 | NEED_GOT = 1, | |
1229 | NEED_PLT = 2, | |
1230 | NEED_DYNREL = 4, | |
98ceb8ce | 1231 | PLT_PLABEL = 8 |
30667bf3 | 1232 | }; |
edd21aca | 1233 | |
30667bf3 AM |
1234 | unsigned int r_symndx, r_type; |
1235 | struct elf32_hppa_link_hash_entry *h; | |
1236 | int need_entry; | |
252b5132 | 1237 | |
30667bf3 | 1238 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 | 1239 | |
30667bf3 AM |
1240 | if (r_symndx < symtab_hdr->sh_info) |
1241 | h = NULL; | |
1242 | else | |
1243 | h = ((struct elf32_hppa_link_hash_entry *) | |
1244 | sym_hashes[r_symndx - symtab_hdr->sh_info]); | |
252b5132 | 1245 | |
30667bf3 | 1246 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 | 1247 | |
30667bf3 AM |
1248 | switch (r_type) |
1249 | { | |
1250 | case R_PARISC_DLTIND14F: | |
1251 | case R_PARISC_DLTIND14R: | |
1252 | case R_PARISC_DLTIND21L: | |
1253 | /* This symbol requires a global offset table entry. */ | |
1254 | need_entry = NEED_GOT; | |
1255 | ||
1256 | /* Mark this section as containing PIC code. */ | |
1257 | sec->flags |= SEC_HAS_GOT_REF; | |
1258 | break; | |
1259 | ||
1260 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1261 | case R_PARISC_PLABEL21L: | |
1262 | case R_PARISC_PLABEL32: | |
74d1c347 | 1263 | /* If the addend is non-zero, we break badly. */ |
49e9d0d3 AM |
1264 | if (rel->r_addend != 0) |
1265 | abort (); | |
74d1c347 AM |
1266 | |
1267 | /* If we are creating a shared library, then we need to | |
1268 | create a PLT entry for all PLABELs, because PLABELs with | |
1269 | local symbols may be passed via a pointer to another | |
1270 | object. Additionally, output a dynamic relocation | |
4dc86686 AM |
1271 | pointing to the PLT entry. |
1272 | For executables, the original 32-bit ABI allowed two | |
1273 | different styles of PLABELs (function pointers): For | |
1274 | global functions, the PLABEL word points into the .plt | |
1275 | two bytes past a (function address, gp) pair, and for | |
1276 | local functions the PLABEL points directly at the | |
1277 | function. The magic +2 for the first type allows us to | |
1278 | differentiate between the two. As you can imagine, this | |
1279 | is a real pain when it comes to generating code to call | |
1280 | functions indirectly or to compare function pointers. | |
1281 | We avoid the mess by always pointing a PLABEL into the | |
1282 | .plt, even for local functions. */ | |
74d1c347 | 1283 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1284 | break; |
1285 | ||
1286 | case R_PARISC_PCREL12F: | |
83c81bfe | 1287 | htab->has_12bit_branch = 1; |
067fa4a6 AM |
1288 | goto branch_common; |
1289 | ||
30667bf3 AM |
1290 | case R_PARISC_PCREL17C: |
1291 | case R_PARISC_PCREL17F: | |
83c81bfe | 1292 | htab->has_17bit_branch = 1; |
067fa4a6 AM |
1293 | goto branch_common; |
1294 | ||
30667bf3 | 1295 | case R_PARISC_PCREL22F: |
067fa4a6 AM |
1296 | htab->has_22bit_branch = 1; |
1297 | branch_common: | |
47d89dba AM |
1298 | /* Function calls might need to go through the .plt, and |
1299 | might require long branch stubs. */ | |
30667bf3 AM |
1300 | if (h == NULL) |
1301 | { | |
1302 | /* We know local syms won't need a .plt entry, and if | |
1303 | they need a long branch stub we can't guarantee that | |
1304 | we can reach the stub. So just flag an error later | |
1305 | if we're doing a shared link and find we need a long | |
1306 | branch stub. */ | |
1307 | continue; | |
1308 | } | |
1309 | else | |
1310 | { | |
1311 | /* Global symbols will need a .plt entry if they remain | |
1312 | global, and in most cases won't need a long branch | |
1313 | stub. Unfortunately, we have to cater for the case | |
1314 | where a symbol is forced local by versioning, or due | |
1315 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1316 | need_entry = NEED_PLT; |
4dc86686 | 1317 | if (h->elf.type == STT_PARISC_MILLI) |
98ceb8ce | 1318 | need_entry = 0; |
30667bf3 AM |
1319 | } |
1320 | break; | |
1321 | ||
1322 | case R_PARISC_SEGBASE: /* Used to set segment base. */ | |
c46b7515 | 1323 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1324 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1325 | case R_PARISC_PCREL14R: | |
1326 | case R_PARISC_PCREL17R: /* External branches. */ | |
1327 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
1328 | /* We don't need to propagate the relocation if linking a | |
1329 | shared object since these are section relative. */ | |
1330 | continue; | |
1331 | ||
1332 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1333 | case R_PARISC_DPREL14R: | |
1334 | case R_PARISC_DPREL21L: | |
1335 | if (info->shared) | |
1336 | { | |
1337 | (*_bfd_error_handler) | |
1338 | (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1339 | bfd_archive_filename (abfd), |
30667bf3 AM |
1340 | elf_hppa_howto_table[r_type].name); |
1341 | bfd_set_error (bfd_error_bad_value); | |
1342 | return false; | |
1343 | } | |
1344 | /* Fall through. */ | |
1345 | ||
1346 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1347 | case R_PARISC_DIR17R: | |
47d89dba AM |
1348 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1349 | case R_PARISC_DIR14R: | |
30667bf3 | 1350 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
067fa4a6 | 1351 | #if 0 |
30667bf3 AM |
1352 | /* Help debug shared library creation. Any of the above |
1353 | relocs can be used in shared libs, but they may cause | |
1354 | pages to become unshared. */ | |
1355 | if (info->shared) | |
1356 | { | |
1357 | (*_bfd_error_handler) | |
1358 | (_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1359 | bfd_archive_filename (abfd), |
30667bf3 AM |
1360 | elf_hppa_howto_table[r_type].name); |
1361 | } | |
1362 | /* Fall through. */ | |
1363 | #endif | |
1364 | ||
c46b7515 | 1365 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1366 | /* We may want to output a dynamic relocation later. */ |
1367 | need_entry = NEED_DYNREL; | |
1368 | break; | |
1369 | ||
1370 | /* This relocation describes the C++ object vtable hierarchy. | |
1371 | Reconstruct it for later use during GC. */ | |
1372 | case R_PARISC_GNU_VTINHERIT: | |
1373 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, | |
1374 | &h->elf, rel->r_offset)) | |
1375 | return false; | |
1376 | continue; | |
1377 | ||
1378 | /* This relocation describes which C++ vtable entries are actually | |
1379 | used. Record for later use during GC. */ | |
1380 | case R_PARISC_GNU_VTENTRY: | |
1381 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, | |
36605136 | 1382 | &h->elf, rel->r_addend)) |
30667bf3 AM |
1383 | return false; |
1384 | continue; | |
1385 | ||
1386 | default: | |
1387 | continue; | |
1388 | } | |
1389 | ||
1390 | /* Now carry out our orders. */ | |
1391 | if (need_entry & NEED_GOT) | |
1392 | { | |
1393 | /* Allocate space for a GOT entry, as well as a dynamic | |
25f72752 | 1394 | relocation for this entry. */ |
83c81bfe | 1395 | if (htab->sgot == NULL) |
30667bf3 | 1396 | { |
3ac8354b AM |
1397 | if (htab->elf.dynobj == NULL) |
1398 | htab->elf.dynobj = abfd; | |
1399 | if (!elf32_hppa_create_dynamic_sections (htab->elf.dynobj, info)) | |
30667bf3 AM |
1400 | return false; |
1401 | } | |
1402 | ||
1403 | if (h != NULL) | |
1404 | { | |
51b64d56 | 1405 | h->elf.got.refcount += 1; |
30667bf3 AM |
1406 | } |
1407 | else | |
1408 | { | |
3ac8354b AM |
1409 | bfd_signed_vma *local_got_refcounts; |
1410 | ||
30667bf3 | 1411 | /* This is a global offset table entry for a local symbol. */ |
3ac8354b | 1412 | local_got_refcounts = elf_local_got_refcounts (abfd); |
30667bf3 AM |
1413 | if (local_got_refcounts == NULL) |
1414 | { | |
dc810e39 | 1415 | bfd_size_type size; |
30667bf3 | 1416 | |
74d1c347 AM |
1417 | /* Allocate space for local got offsets and local |
1418 | plt offsets. Done this way to save polluting | |
1419 | elf_obj_tdata with another target specific | |
1420 | pointer. */ | |
dc810e39 AM |
1421 | size = symtab_hdr->sh_info; |
1422 | size *= 2 * sizeof (bfd_signed_vma); | |
30667bf3 | 1423 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1424 | bfd_zalloc (abfd, size)); |
30667bf3 AM |
1425 | if (local_got_refcounts == NULL) |
1426 | return false; | |
1427 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
30667bf3 | 1428 | } |
ebe50bae | 1429 | local_got_refcounts[r_symndx] += 1; |
30667bf3 AM |
1430 | } |
1431 | } | |
1432 | ||
1433 | if (need_entry & NEED_PLT) | |
1434 | { | |
1435 | /* If we are creating a shared library, and this is a reloc | |
1436 | against a weak symbol or a global symbol in a dynamic | |
1437 | object, then we will be creating an import stub and a | |
1438 | .plt entry for the symbol. Similarly, on a normal link | |
1439 | to symbols defined in a dynamic object we'll need the | |
1440 | import stub and a .plt entry. We don't know yet whether | |
1441 | the symbol is defined or not, so make an entry anyway and | |
1442 | clean up later in adjust_dynamic_symbol. */ | |
1443 | if ((sec->flags & SEC_ALLOC) != 0) | |
1444 | { | |
74d1c347 | 1445 | if (h != NULL) |
30667bf3 | 1446 | { |
51b64d56 AM |
1447 | h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
1448 | h->elf.plt.refcount += 1; | |
74d1c347 | 1449 | |
36605136 AM |
1450 | /* If this .plt entry is for a plabel, mark it so |
1451 | that adjust_dynamic_symbol will keep the entry | |
1452 | even if it appears to be local. */ | |
74d1c347 AM |
1453 | if (need_entry & PLT_PLABEL) |
1454 | h->plabel = 1; | |
1455 | } | |
1456 | else if (need_entry & PLT_PLABEL) | |
1457 | { | |
3ac8354b | 1458 | bfd_signed_vma *local_got_refcounts; |
68fb2e56 | 1459 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 | 1460 | |
3ac8354b | 1461 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1462 | if (local_got_refcounts == NULL) |
1463 | { | |
dc810e39 | 1464 | bfd_size_type size; |
74d1c347 AM |
1465 | |
1466 | /* Allocate space for local got offsets and local | |
1467 | plt offsets. */ | |
dc810e39 AM |
1468 | size = symtab_hdr->sh_info; |
1469 | size *= 2 * sizeof (bfd_signed_vma); | |
74d1c347 | 1470 | local_got_refcounts = ((bfd_signed_vma *) |
ebe50bae | 1471 | bfd_zalloc (abfd, size)); |
74d1c347 AM |
1472 | if (local_got_refcounts == NULL) |
1473 | return false; | |
1474 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
74d1c347 | 1475 | } |
68fb2e56 AM |
1476 | local_plt_refcounts = (local_got_refcounts |
1477 | + symtab_hdr->sh_info); | |
ebe50bae | 1478 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1479 | } |
30667bf3 AM |
1480 | } |
1481 | } | |
1482 | ||
98ceb8ce | 1483 | if (need_entry & NEED_DYNREL) |
30667bf3 AM |
1484 | { |
1485 | /* Flag this symbol as having a non-got, non-plt reference | |
1486 | so that we generate copy relocs if it turns out to be | |
1487 | dynamic. */ | |
ebe50bae | 1488 | if (h != NULL && !info->shared) |
30667bf3 AM |
1489 | h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; |
1490 | ||
1491 | /* If we are creating a shared library then we need to copy | |
1492 | the reloc into the shared library. However, if we are | |
1493 | linking with -Bsymbolic, we need only copy absolute | |
1494 | relocs or relocs against symbols that are not defined in | |
1495 | an object we are including in the link. PC- or DP- or | |
1496 | DLT-relative relocs against any local sym or global sym | |
1497 | with DEF_REGULAR set, can be discarded. At this point we | |
1498 | have not seen all the input files, so it is possible that | |
1499 | DEF_REGULAR is not set now but will be set later (it is | |
1500 | never cleared). We account for that possibility below by | |
98ceb8ce | 1501 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1502 | hash table entry. |
1503 | ||
1504 | A similar situation to the -Bsymbolic case occurs when | |
1505 | creating shared libraries and symbol visibility changes | |
1506 | render the symbol local. | |
1507 | ||
1508 | As it turns out, all the relocs we will be creating here | |
1509 | are absolute, so we cannot remove them on -Bsymbolic | |
1510 | links or visibility changes anyway. A STUB_REL reloc | |
1511 | is absolute too, as in that case it is the reloc in the | |
1512 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1513 | reloc in the branch. |
1514 | ||
1515 | If on the other hand, we are creating an executable, we | |
1516 | may need to keep relocations for symbols satisfied by a | |
1517 | dynamic library if we manage to avoid copy relocs for the | |
1518 | symbol. */ | |
446f2863 AM |
1519 | if ((info->shared |
1520 | && (sec->flags & SEC_ALLOC) != 0 | |
1521 | && (IS_ABSOLUTE_RELOC (r_type) | |
1522 | || (h != NULL | |
1523 | && (!info->symbolic | |
1524 | || h->elf.root.type == bfd_link_hash_defweak | |
1525 | || (h->elf.elf_link_hash_flags | |
1526 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1527 | || (!info->shared | |
1528 | && (sec->flags & SEC_ALLOC) != 0 | |
1529 | && h != NULL | |
446f2863 AM |
1530 | && (h->elf.root.type == bfd_link_hash_defweak |
1531 | || (h->elf.elf_link_hash_flags | |
1532 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
30667bf3 | 1533 | { |
ec338859 AM |
1534 | struct elf32_hppa_dyn_reloc_entry *p; |
1535 | struct elf32_hppa_dyn_reloc_entry **head; | |
1536 | ||
30667bf3 AM |
1537 | /* Create a reloc section in dynobj and make room for |
1538 | this reloc. */ | |
98ceb8ce | 1539 | if (sreloc == NULL) |
30667bf3 AM |
1540 | { |
1541 | char *name; | |
3ac8354b | 1542 | bfd *dynobj; |
30667bf3 | 1543 | |
98ceb8ce AM |
1544 | name = (bfd_elf_string_from_elf_section |
1545 | (abfd, | |
1546 | elf_elfheader (abfd)->e_shstrndx, | |
1547 | elf_section_data (sec)->rel_hdr.sh_name)); | |
30667bf3 AM |
1548 | if (name == NULL) |
1549 | { | |
1550 | (*_bfd_error_handler) | |
1551 | (_("Could not find relocation section for %s"), | |
1552 | sec->name); | |
1553 | bfd_set_error (bfd_error_bad_value); | |
1554 | return false; | |
1555 | } | |
1556 | ||
3ac8354b AM |
1557 | if (htab->elf.dynobj == NULL) |
1558 | htab->elf.dynobj = abfd; | |
1559 | ||
1560 | dynobj = htab->elf.dynobj; | |
98ceb8ce AM |
1561 | sreloc = bfd_get_section_by_name (dynobj, name); |
1562 | if (sreloc == NULL) | |
30667bf3 AM |
1563 | { |
1564 | flagword flags; | |
1565 | ||
98ceb8ce | 1566 | sreloc = bfd_make_section (dynobj, name); |
30667bf3 AM |
1567 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1568 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1569 | if ((sec->flags & SEC_ALLOC) != 0) | |
1570 | flags |= SEC_ALLOC | SEC_LOAD; | |
98ceb8ce AM |
1571 | if (sreloc == NULL |
1572 | || !bfd_set_section_flags (dynobj, sreloc, flags) | |
1573 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) | |
30667bf3 AM |
1574 | return false; |
1575 | } | |
30667bf3 | 1576 | |
98ceb8ce | 1577 | elf_section_data (sec)->sreloc = sreloc; |
30667bf3 AM |
1578 | } |
1579 | ||
98ceb8ce AM |
1580 | /* If this is a global symbol, we count the number of |
1581 | relocations we need for this symbol. */ | |
1582 | if (h != NULL) | |
30667bf3 | 1583 | { |
ec338859 AM |
1584 | head = &h->dyn_relocs; |
1585 | } | |
1586 | else | |
1587 | { | |
1588 | /* Track dynamic relocs needed for local syms too. | |
1589 | We really need local syms available to do this | |
1590 | easily. Oh well. */ | |
1591 | ||
1592 | asection *s; | |
1593 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
1594 | sec, r_symndx); | |
1595 | if (s == NULL) | |
1596 | return false; | |
30667bf3 | 1597 | |
ec338859 AM |
1598 | head = ((struct elf32_hppa_dyn_reloc_entry **) |
1599 | &elf_section_data (s)->local_dynrel); | |
1600 | } | |
1601 | ||
1602 | p = *head; | |
1603 | if (p == NULL || p->sec != sec) | |
1604 | { | |
1605 | p = ((struct elf32_hppa_dyn_reloc_entry *) | |
1606 | bfd_alloc (htab->elf.dynobj, | |
1607 | (bfd_size_type) sizeof *p)); | |
1608 | if (p == NULL) | |
1609 | return false; | |
1610 | p->next = *head; | |
1611 | *head = p; | |
1612 | p->sec = sec; | |
1613 | p->count = 0; | |
98ceb8ce | 1614 | #if RELATIVE_DYNRELOCS |
ec338859 | 1615 | p->relative_count = 0; |
98ceb8ce | 1616 | #endif |
ec338859 | 1617 | } |
98ceb8ce | 1618 | |
ec338859 | 1619 | p->count += 1; |
98ceb8ce | 1620 | #if RELATIVE_DYNRELOCS |
ec338859 AM |
1621 | if (!IS_ABSOLUTE_RELOC (rtype)) |
1622 | p->relative_count += 1; | |
98ceb8ce | 1623 | #endif |
30667bf3 AM |
1624 | } |
1625 | } | |
1626 | } | |
edd21aca AM |
1627 | |
1628 | return true; | |
1629 | } | |
1630 | ||
30667bf3 AM |
1631 | /* Return the section that should be marked against garbage collection |
1632 | for a given relocation. */ | |
1633 | ||
1634 | static asection * | |
1635 | elf32_hppa_gc_mark_hook (abfd, info, rel, h, sym) | |
1636 | bfd *abfd; | |
1637 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1638 | Elf_Internal_Rela *rel; | |
1639 | struct elf_link_hash_entry *h; | |
1640 | Elf_Internal_Sym *sym; | |
1641 | { | |
1642 | if (h != NULL) | |
1643 | { | |
1644 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1645 | { | |
1646 | case R_PARISC_GNU_VTINHERIT: | |
1647 | case R_PARISC_GNU_VTENTRY: | |
1648 | break; | |
1649 | ||
1650 | default: | |
1651 | switch (h->root.type) | |
1652 | { | |
1653 | case bfd_link_hash_defined: | |
1654 | case bfd_link_hash_defweak: | |
1655 | return h->root.u.def.section; | |
1656 | ||
1657 | case bfd_link_hash_common: | |
1658 | return h->root.u.c.p->section; | |
1659 | ||
1660 | default: | |
1661 | break; | |
1662 | } | |
1663 | } | |
1664 | } | |
1665 | else | |
1666 | { | |
9ad5cbcf | 1667 | return bfd_section_from_elf_index (abfd, sym->st_shndx); |
30667bf3 AM |
1668 | } |
1669 | ||
1670 | return NULL; | |
1671 | } | |
1672 | ||
30667bf3 AM |
1673 | /* Update the got and plt entry reference counts for the section being |
1674 | removed. */ | |
edd21aca AM |
1675 | |
1676 | static boolean | |
30667bf3 AM |
1677 | elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs) |
1678 | bfd *abfd; | |
1679 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1680 | asection *sec; | |
1681 | const Elf_Internal_Rela *relocs; | |
edd21aca | 1682 | { |
30667bf3 AM |
1683 | Elf_Internal_Shdr *symtab_hdr; |
1684 | struct elf_link_hash_entry **sym_hashes; | |
1685 | bfd_signed_vma *local_got_refcounts; | |
74d1c347 | 1686 | bfd_signed_vma *local_plt_refcounts; |
30667bf3 AM |
1687 | const Elf_Internal_Rela *rel, *relend; |
1688 | unsigned long r_symndx; | |
1689 | struct elf_link_hash_entry *h; | |
83c81bfe | 1690 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 1691 | bfd *dynobj; |
30667bf3 | 1692 | |
ec338859 | 1693 | elf_section_data (sec)->local_dynrel = NULL; |
98ceb8ce | 1694 | |
30667bf3 AM |
1695 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1696 | sym_hashes = elf_sym_hashes (abfd); | |
1697 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
74d1c347 AM |
1698 | local_plt_refcounts = local_got_refcounts; |
1699 | if (local_plt_refcounts != NULL) | |
1700 | local_plt_refcounts += symtab_hdr->sh_info; | |
83c81bfe | 1701 | htab = hppa_link_hash_table (info); |
ebe50bae | 1702 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
1703 | if (dynobj == NULL) |
1704 | return true; | |
1705 | ||
30667bf3 AM |
1706 | relend = relocs + sec->reloc_count; |
1707 | for (rel = relocs; rel < relend; rel++) | |
1708 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1709 | { | |
1710 | case R_PARISC_DLTIND14F: | |
1711 | case R_PARISC_DLTIND14R: | |
1712 | case R_PARISC_DLTIND21L: | |
1713 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1714 | if (r_symndx >= symtab_hdr->sh_info) | |
1715 | { | |
1716 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1717 | if (h->got.refcount > 0) | |
4dc86686 | 1718 | h->got.refcount -= 1; |
30667bf3 AM |
1719 | } |
1720 | else if (local_got_refcounts != NULL) | |
1721 | { | |
1722 | if (local_got_refcounts[r_symndx] > 0) | |
4dc86686 | 1723 | local_got_refcounts[r_symndx] -= 1; |
30667bf3 AM |
1724 | } |
1725 | break; | |
edd21aca | 1726 | |
30667bf3 AM |
1727 | case R_PARISC_PCREL12F: |
1728 | case R_PARISC_PCREL17C: | |
1729 | case R_PARISC_PCREL17F: | |
1730 | case R_PARISC_PCREL22F: | |
1731 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1732 | if (r_symndx >= symtab_hdr->sh_info) | |
1733 | { | |
1734 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1735 | if (h->plt.refcount > 0) | |
1736 | h->plt.refcount -= 1; | |
1737 | } | |
1738 | break; | |
edd21aca | 1739 | |
74d1c347 AM |
1740 | case R_PARISC_PLABEL14R: |
1741 | case R_PARISC_PLABEL21L: | |
1742 | case R_PARISC_PLABEL32: | |
1743 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1744 | if (r_symndx >= symtab_hdr->sh_info) | |
1745 | { | |
98ceb8ce AM |
1746 | struct elf32_hppa_link_hash_entry *eh; |
1747 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1748 | struct elf32_hppa_dyn_reloc_entry *p; | |
1749 | ||
74d1c347 | 1750 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
98ceb8ce | 1751 | |
74d1c347 AM |
1752 | if (h->plt.refcount > 0) |
1753 | h->plt.refcount -= 1; | |
98ceb8ce AM |
1754 | |
1755 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1756 | ||
1757 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1758 | if (p->sec == sec) | |
1759 | { | |
1760 | #if RELATIVE_DYNRELOCS | |
1761 | if (!IS_ABSOLUTE_RELOC (rtype)) | |
1762 | p->relative_count -= 1; | |
1763 | #endif | |
1764 | p->count -= 1; | |
1765 | if (p->count == 0) | |
1766 | *pp = p->next; | |
1767 | break; | |
1768 | } | |
74d1c347 AM |
1769 | } |
1770 | else if (local_plt_refcounts != NULL) | |
1771 | { | |
1772 | if (local_plt_refcounts[r_symndx] > 0) | |
1773 | local_plt_refcounts[r_symndx] -= 1; | |
1774 | } | |
1775 | break; | |
1776 | ||
98ceb8ce AM |
1777 | case R_PARISC_DIR32: |
1778 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1779 | if (r_symndx >= symtab_hdr->sh_info) | |
1780 | { | |
1781 | struct elf32_hppa_link_hash_entry *eh; | |
1782 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1783 | struct elf32_hppa_dyn_reloc_entry *p; | |
1784 | ||
1785 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1786 | ||
1787 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1788 | ||
1789 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1790 | if (p->sec == sec) | |
1791 | { | |
1792 | #if RELATIVE_DYNRELOCS | |
1793 | if (!IS_ABSOLUTE_RELOC (R_PARISC_DIR32)) | |
1794 | p->relative_count -= 1; | |
1795 | #endif | |
1796 | p->count -= 1; | |
1797 | if (p->count == 0) | |
1798 | *pp = p->next; | |
1799 | break; | |
1800 | } | |
1801 | } | |
1802 | break; | |
1803 | ||
30667bf3 AM |
1804 | default: |
1805 | break; | |
1806 | } | |
252b5132 | 1807 | |
252b5132 RH |
1808 | return true; |
1809 | } | |
1810 | ||
74d1c347 AM |
1811 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1812 | plabels. */ | |
1813 | ||
1814 | static void | |
e5094212 AM |
1815 | elf32_hppa_hide_symbol (info, h, force_local) |
1816 | struct bfd_link_info *info; | |
74d1c347 | 1817 | struct elf_link_hash_entry *h; |
e5094212 | 1818 | boolean force_local; |
74d1c347 | 1819 | { |
e5094212 AM |
1820 | if (force_local) |
1821 | { | |
1822 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL; | |
1823 | if (h->dynindx != -1) | |
1824 | { | |
1825 | h->dynindx = -1; | |
1826 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
1827 | h->dynstr_index); | |
1828 | } | |
1829 | } | |
1830 | ||
74d1c347 AM |
1831 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel) |
1832 | { | |
1833 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1834 | h->plt.offset = (bfd_vma) -1; | |
1835 | } | |
1836 | } | |
1837 | ||
4dc86686 AM |
1838 | /* This is the condition under which elf32_hppa_finish_dynamic_symbol |
1839 | will be called from elflink.h. If elflink.h doesn't call our | |
1840 | finish_dynamic_symbol routine, we'll need to do something about | |
1841 | initializing any .plt and .got entries in elf32_hppa_relocate_section. */ | |
1842 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
1843 | ((DYN) \ | |
1844 | && ((INFO)->shared \ | |
1845 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
1846 | && ((H)->dynindx != -1 \ | |
1847 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
1848 | ||
30667bf3 AM |
1849 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1850 | regular object. The current definition is in some section of the | |
1851 | dynamic object, but we're not including those sections. We have to | |
1852 | change the definition to something the rest of the link can | |
1853 | understand. */ | |
252b5132 | 1854 | |
30667bf3 AM |
1855 | static boolean |
1856 | elf32_hppa_adjust_dynamic_symbol (info, h) | |
1857 | struct bfd_link_info *info; | |
1858 | struct elf_link_hash_entry *h; | |
252b5132 | 1859 | { |
83c81bfe | 1860 | struct elf32_hppa_link_hash_table *htab; |
ebe50bae AM |
1861 | struct elf32_hppa_link_hash_entry *eh; |
1862 | struct elf32_hppa_dyn_reloc_entry *p; | |
30667bf3 | 1863 | asection *s; |
3ac8354b | 1864 | unsigned int power_of_two; |
30667bf3 AM |
1865 | |
1866 | /* If this is a function, put it in the procedure linkage table. We | |
067fa4a6 | 1867 | will fill in the contents of the procedure linkage table later. */ |
30667bf3 AM |
1868 | if (h->type == STT_FUNC |
1869 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1870 | { | |
1871 | if (h->plt.refcount <= 0 | |
1872 | || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1873 | && h->root.type != bfd_link_hash_defweak | |
74d1c347 | 1874 | && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel |
30667bf3 AM |
1875 | && (!info->shared || info->symbolic))) |
1876 | { | |
1877 | /* The .plt entry is not needed when: | |
1878 | a) Garbage collection has removed all references to the | |
1879 | symbol, or | |
1880 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1881 | object, and it's not a weak definition, nor is the symbol |
1882 | used by a plabel relocation. Either this object is the | |
1883 | application or we are doing a shared symbolic link. */ | |
1884 | ||
1885 | /* As a special sop to the hppa ABI, we keep a .plt entry | |
1886 | for functions in sections containing PIC code. */ | |
067fa4a6 AM |
1887 | if (!info->shared |
1888 | && h->plt.refcount > 0 | |
1889 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1890 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0) | |
12cca0d2 | 1891 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
30667bf3 AM |
1892 | else |
1893 | { | |
1894 | h->plt.offset = (bfd_vma) -1; | |
1895 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
30667bf3 | 1896 | } |
30667bf3 | 1897 | } |
4dc86686 | 1898 | |
30667bf3 AM |
1899 | return true; |
1900 | } | |
bbd7ec4a AM |
1901 | else |
1902 | h->plt.offset = (bfd_vma) -1; | |
edd21aca | 1903 | |
30667bf3 AM |
1904 | /* If this is a weak symbol, and there is a real definition, the |
1905 | processor independent code will have arranged for us to see the | |
1906 | real definition first, and we can just use the same value. */ | |
1907 | if (h->weakdef != NULL) | |
edd21aca | 1908 | { |
49e9d0d3 AM |
1909 | if (h->weakdef->root.type != bfd_link_hash_defined |
1910 | && h->weakdef->root.type != bfd_link_hash_defweak) | |
1911 | abort (); | |
30667bf3 AM |
1912 | h->root.u.def.section = h->weakdef->root.u.def.section; |
1913 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
0a991dfe | 1914 | return true; |
30667bf3 | 1915 | } |
edd21aca | 1916 | |
30667bf3 AM |
1917 | /* This is a reference to a symbol defined by a dynamic object which |
1918 | is not a function. */ | |
1919 | ||
1920 | /* If we are creating a shared library, we must presume that the | |
1921 | only references to the symbol are via the global offset table. | |
1922 | For such cases we need not do anything here; the relocations will | |
1923 | be handled correctly by relocate_section. */ | |
1924 | if (info->shared) | |
1925 | return true; | |
1926 | ||
1927 | /* If there are no references to this symbol that do not use the | |
1928 | GOT, we don't need to generate a copy reloc. */ | |
1929 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
1930 | return true; | |
1931 | ||
ebe50bae AM |
1932 | eh = (struct elf32_hppa_link_hash_entry *) h; |
1933 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1934 | { | |
1935 | s = p->sec->output_section; | |
1936 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1937 | break; | |
1938 | } | |
1939 | ||
1940 | /* If we didn't find any dynamic relocs in read-only sections, then | |
46fe4e66 | 1941 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
ebe50bae AM |
1942 | if (p == NULL) |
1943 | { | |
1944 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
1945 | return true; | |
1946 | } | |
1947 | ||
30667bf3 AM |
1948 | /* We must allocate the symbol in our .dynbss section, which will |
1949 | become part of the .bss section of the executable. There will be | |
1950 | an entry for this symbol in the .dynsym section. The dynamic | |
1951 | object will contain position independent code, so all references | |
1952 | from the dynamic object to this symbol will go through the global | |
1953 | offset table. The dynamic linker will use the .dynsym entry to | |
1954 | determine the address it must put in the global offset table, so | |
1955 | both the dynamic object and the regular object will refer to the | |
1956 | same memory location for the variable. */ | |
1957 | ||
3ac8354b | 1958 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1959 | |
1960 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1961 | copy the initial value out of the dynamic object and into the | |
3ac8354b | 1962 | runtime process image. */ |
30667bf3 AM |
1963 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
1964 | { | |
3ac8354b | 1965 | htab->srelbss->_raw_size += sizeof (Elf32_External_Rela); |
30667bf3 | 1966 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
edd21aca | 1967 | } |
252b5132 | 1968 | |
3ac8354b AM |
1969 | /* We need to figure out the alignment required for this symbol. I |
1970 | have no idea how other ELF linkers handle this. */ | |
30667bf3 | 1971 | |
3ac8354b AM |
1972 | power_of_two = bfd_log2 (h->size); |
1973 | if (power_of_two > 3) | |
1974 | power_of_two = 3; | |
1975 | ||
1976 | /* Apply the required alignment. */ | |
1977 | s = htab->sdynbss; | |
1978 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1979 | (bfd_size_type) (1 << power_of_two)); | |
1980 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
1981 | { | |
1982 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) | |
1983 | return false; | |
1984 | } | |
30667bf3 | 1985 | |
30667bf3 AM |
1986 | /* Define the symbol as being at this point in the section. */ |
1987 | h->root.u.def.section = s; | |
1988 | h->root.u.def.value = s->_raw_size; | |
edd21aca | 1989 | |
30667bf3 AM |
1990 | /* Increment the section size to make room for the symbol. */ |
1991 | s->_raw_size += h->size; | |
252b5132 RH |
1992 | |
1993 | return true; | |
1994 | } | |
1995 | ||
30667bf3 AM |
1996 | /* Called via elf_link_hash_traverse to create .plt entries for an |
1997 | application that uses statically linked PIC functions. Similar to | |
1998 | the first part of elf32_hppa_adjust_dynamic_symbol. */ | |
252b5132 | 1999 | |
30667bf3 | 2000 | static boolean |
a8d02d66 | 2001 | mark_PIC_calls (h, inf) |
30667bf3 | 2002 | struct elf_link_hash_entry *h; |
4dc86686 | 2003 | PTR inf ATTRIBUTE_UNUSED; |
252b5132 | 2004 | { |
e92d460e AM |
2005 | if (h->root.type == bfd_link_hash_warning) |
2006 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2007 | ||
30667bf3 AM |
2008 | if (! (h->plt.refcount > 0 |
2009 | && (h->root.type == bfd_link_hash_defined | |
2010 | || h->root.type == bfd_link_hash_defweak) | |
2011 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)) | |
252b5132 | 2012 | { |
30667bf3 AM |
2013 | h->plt.offset = (bfd_vma) -1; |
2014 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2015 | return true; | |
252b5132 RH |
2016 | } |
2017 | ||
74d1c347 | 2018 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
30667bf3 | 2019 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
edd21aca | 2020 | |
4dc86686 AM |
2021 | return true; |
2022 | } | |
2023 | ||
e5ee5df1 AM |
2024 | /* Allocate space in the .plt for entries that won't have relocations. |
2025 | ie. pic_call and plabel entries. */ | |
a8d02d66 AM |
2026 | |
2027 | static boolean | |
e5ee5df1 | 2028 | allocate_plt_static (h, inf) |
a8d02d66 AM |
2029 | struct elf_link_hash_entry *h; |
2030 | PTR inf; | |
2031 | { | |
2032 | struct bfd_link_info *info; | |
2033 | struct elf32_hppa_link_hash_table *htab; | |
2034 | asection *s; | |
2035 | ||
e92d460e | 2036 | if (h->root.type == bfd_link_hash_indirect) |
a8d02d66 AM |
2037 | return true; |
2038 | ||
e92d460e AM |
2039 | if (h->root.type == bfd_link_hash_warning) |
2040 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2041 | ||
a8d02d66 AM |
2042 | info = (struct bfd_link_info *) inf; |
2043 | htab = hppa_link_hash_table (info); | |
2044 | if (((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2045 | { | |
e5ee5df1 AM |
2046 | /* Make an entry in the .plt section for non-pic code that is |
2047 | calling pic code. */ | |
067fa4a6 | 2048 | ((struct elf32_hppa_link_hash_entry *) h)->plabel = 0; |
a8d02d66 AM |
2049 | s = htab->splt; |
2050 | h->plt.offset = s->_raw_size; | |
e5ee5df1 AM |
2051 | s->_raw_size += PLT_ENTRY_SIZE; |
2052 | } | |
2053 | else if (htab->elf.dynamic_sections_created | |
2054 | && h->plt.refcount > 0) | |
2055 | { | |
2056 | /* Make sure this symbol is output as a dynamic symbol. | |
2057 | Undefined weak syms won't yet be marked as dynamic. */ | |
2058 | if (h->dynindx == -1 | |
2059 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2060 | && h->type != STT_PARISC_MILLI) | |
a8d02d66 | 2061 | { |
e5ee5df1 AM |
2062 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) |
2063 | return false; | |
2064 | } | |
2065 | ||
2066 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
2067 | { | |
067fa4a6 AM |
2068 | /* Allocate these later. From this point on, h->plabel |
2069 | means that the plt entry is only used by a plabel. | |
2070 | We'll be using a normal plt entry for this symbol, so | |
2071 | clear the plabel indicator. */ | |
2072 | ((struct elf32_hppa_link_hash_entry *) h)->plabel = 0; | |
e5ee5df1 AM |
2073 | } |
2074 | else if (((struct elf32_hppa_link_hash_entry *) h)->plabel) | |
2075 | { | |
2076 | /* Make an entry in the .plt section for plabel references | |
2077 | that won't have a .plt entry for other reasons. */ | |
2078 | s = htab->splt; | |
2079 | h->plt.offset = s->_raw_size; | |
2080 | s->_raw_size += PLT_ENTRY_SIZE; | |
a8d02d66 AM |
2081 | } |
2082 | else | |
e5ee5df1 AM |
2083 | { |
2084 | /* No .plt entry needed. */ | |
2085 | h->plt.offset = (bfd_vma) -1; | |
2086 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2087 | } | |
2088 | } | |
2089 | else | |
2090 | { | |
2091 | h->plt.offset = (bfd_vma) -1; | |
2092 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
a8d02d66 AM |
2093 | } |
2094 | ||
2095 | return true; | |
2096 | } | |
2097 | ||
4dc86686 AM |
2098 | /* Allocate space in .plt, .got and associated reloc sections for |
2099 | global syms. */ | |
2100 | ||
2101 | static boolean | |
98ceb8ce | 2102 | allocate_dynrelocs (h, inf) |
4dc86686 AM |
2103 | struct elf_link_hash_entry *h; |
2104 | PTR inf; | |
2105 | { | |
2106 | struct bfd_link_info *info; | |
83c81bfe | 2107 | struct elf32_hppa_link_hash_table *htab; |
4dc86686 | 2108 | asection *s; |
446f2863 | 2109 | struct elf32_hppa_link_hash_entry *eh; |
98ceb8ce | 2110 | struct elf32_hppa_dyn_reloc_entry *p; |
4dc86686 | 2111 | |
e92d460e | 2112 | if (h->root.type == bfd_link_hash_indirect) |
73a74a62 AM |
2113 | return true; |
2114 | ||
e92d460e AM |
2115 | if (h->root.type == bfd_link_hash_warning) |
2116 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2117 | ||
30667bf3 | 2118 | info = (struct bfd_link_info *) inf; |
83c81bfe | 2119 | htab = hppa_link_hash_table (info); |
e5ee5df1 AM |
2120 | if (htab->elf.dynamic_sections_created |
2121 | && h->plt.offset != (bfd_vma) -1 | |
2122 | && !((struct elf32_hppa_link_hash_entry *) h)->pic_call | |
067fa4a6 | 2123 | && !((struct elf32_hppa_link_hash_entry *) h)->plabel) |
4dc86686 | 2124 | { |
e5ee5df1 AM |
2125 | /* Make an entry in the .plt section. */ |
2126 | s = htab->splt; | |
2127 | h->plt.offset = s->_raw_size; | |
2128 | s->_raw_size += PLT_ENTRY_SIZE; | |
3ac8354b | 2129 | |
e5ee5df1 AM |
2130 | /* We also need to make an entry in the .rela.plt section. */ |
2131 | htab->srelplt->_raw_size += sizeof (Elf32_External_Rela); | |
2132 | htab->need_plt_stub = 1; | |
4dc86686 | 2133 | } |
edd21aca | 2134 | |
4dc86686 AM |
2135 | if (h->got.refcount > 0) |
2136 | { | |
446f2863 AM |
2137 | /* Make sure this symbol is output as a dynamic symbol. |
2138 | Undefined weak syms won't yet be marked as dynamic. */ | |
2139 | if (h->dynindx == -1 | |
2140 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2141 | && h->type != STT_PARISC_MILLI) | |
2142 | { | |
2143 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2144 | return false; | |
2145 | } | |
2146 | ||
83c81bfe | 2147 | s = htab->sgot; |
4dc86686 AM |
2148 | h->got.offset = s->_raw_size; |
2149 | s->_raw_size += GOT_ENTRY_SIZE; | |
ce757d15 AM |
2150 | if (htab->elf.dynamic_sections_created |
2151 | && (info->shared | |
2152 | || (h->dynindx != -1 | |
2153 | && h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)) | |
2154 | { | |
2155 | htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
2156 | } | |
4dc86686 AM |
2157 | } |
2158 | else | |
2159 | h->got.offset = (bfd_vma) -1; | |
30667bf3 | 2160 | |
446f2863 | 2161 | eh = (struct elf32_hppa_link_hash_entry *) h; |
98ceb8ce | 2162 | if (eh->dyn_relocs == NULL) |
446f2863 | 2163 | return true; |
30667bf3 | 2164 | |
98ceb8ce AM |
2165 | /* If this is a -Bsymbolic shared link, then we need to discard all |
2166 | space allocated for dynamic pc-relative relocs against symbols | |
2167 | defined in a regular object. For the normal shared case, discard | |
2168 | space for relocs that have become local due to symbol visibility | |
2169 | changes. */ | |
2170 | if (info->shared) | |
446f2863 | 2171 | { |
98ceb8ce AM |
2172 | #if RELATIVE_DYNRELOCS |
2173 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
2174 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
2175 | || info->symbolic)) | |
446f2863 | 2176 | { |
98ceb8ce | 2177 | struct elf32_hppa_dyn_reloc_entry **pp; |
30667bf3 | 2178 | |
98ceb8ce AM |
2179 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
2180 | { | |
2181 | p->count -= p->relative_count; | |
2182 | p->relative_count = 0; | |
2183 | if (p->count == 0) | |
2184 | *pp = p->next; | |
2185 | else | |
2186 | pp = &p->next; | |
2187 | } | |
2188 | } | |
2189 | #endif | |
446f2863 | 2190 | } |
98ceb8ce | 2191 | else |
30667bf3 | 2192 | { |
98ceb8ce AM |
2193 | /* For the non-shared case, discard space for relocs against |
2194 | symbols which turn out to need copy relocs or are not | |
2195 | dynamic. */ | |
2196 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
2197 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2198 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
ebe50bae | 2199 | || (htab->elf.dynamic_sections_created |
98ceb8ce AM |
2200 | && (h->root.type == bfd_link_hash_undefweak |
2201 | || h->root.type == bfd_link_hash_undefined)))) | |
2202 | { | |
2203 | /* Make sure this symbol is output as a dynamic symbol. | |
2204 | Undefined weak syms won't yet be marked as dynamic. */ | |
2205 | if (h->dynindx == -1 | |
2206 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2207 | && h->type != STT_PARISC_MILLI) | |
2208 | { | |
2209 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2210 | return false; | |
2211 | } | |
2212 | ||
2213 | /* If that succeeded, we know we'll be keeping all the | |
2214 | relocs. */ | |
2215 | if (h->dynindx != -1) | |
2216 | goto keep; | |
2217 | } | |
446f2863 | 2218 | |
98ceb8ce AM |
2219 | eh->dyn_relocs = NULL; |
2220 | return true; | |
2221 | ||
ec338859 | 2222 | keep: ; |
30667bf3 | 2223 | } |
30667bf3 | 2224 | |
98ceb8ce AM |
2225 | /* Finally, allocate space. */ |
2226 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
30667bf3 | 2227 | { |
98ceb8ce AM |
2228 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
2229 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2230 | } |
30667bf3 AM |
2231 | |
2232 | return true; | |
2233 | } | |
30667bf3 | 2234 | |
d5c73c2f AM |
2235 | /* This function is called via elf_link_hash_traverse to force |
2236 | millicode symbols local so they do not end up as globals in the | |
2237 | dynamic symbol table. We ought to be able to do this in | |
2238 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2239 | for all dynamic symbols. Arguably, this is a bug in | |
2240 | elf_adjust_dynamic_symbol. */ | |
2241 | ||
2242 | static boolean | |
2243 | clobber_millicode_symbols (h, info) | |
2244 | struct elf_link_hash_entry *h; | |
2245 | struct bfd_link_info *info; | |
2246 | { | |
e92d460e AM |
2247 | if (h->root.type == bfd_link_hash_warning) |
2248 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2249 | ||
142f8c94 AM |
2250 | if (h->type == STT_PARISC_MILLI |
2251 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
e0522e89 | 2252 | { |
e5094212 | 2253 | elf32_hppa_hide_symbol (info, h, true); |
e0522e89 | 2254 | } |
d5c73c2f AM |
2255 | return true; |
2256 | } | |
2257 | ||
98ceb8ce AM |
2258 | /* Find any dynamic relocs that apply to read-only sections. */ |
2259 | ||
2260 | static boolean | |
2261 | readonly_dynrelocs (h, inf) | |
2262 | struct elf_link_hash_entry *h; | |
2263 | PTR inf; | |
2264 | { | |
2265 | struct elf32_hppa_link_hash_entry *eh; | |
2266 | struct elf32_hppa_dyn_reloc_entry *p; | |
2267 | ||
e92d460e AM |
2268 | if (h->root.type == bfd_link_hash_warning) |
2269 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
2270 | ||
98ceb8ce AM |
2271 | eh = (struct elf32_hppa_link_hash_entry *) h; |
2272 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
2273 | { | |
2274 | asection *s = p->sec->output_section; | |
2275 | ||
2276 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
2277 | { | |
2278 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
2279 | ||
2280 | info->flags |= DF_TEXTREL; | |
2281 | ||
2282 | /* Not an error, just cut short the traversal. */ | |
2283 | return false; | |
2284 | } | |
2285 | } | |
2286 | return true; | |
2287 | } | |
2288 | ||
30667bf3 AM |
2289 | /* Set the sizes of the dynamic sections. */ |
2290 | ||
2291 | static boolean | |
2292 | elf32_hppa_size_dynamic_sections (output_bfd, info) | |
98ceb8ce | 2293 | bfd *output_bfd ATTRIBUTE_UNUSED; |
30667bf3 AM |
2294 | struct bfd_link_info *info; |
2295 | { | |
83c81bfe | 2296 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2297 | bfd *dynobj; |
98ceb8ce | 2298 | bfd *ibfd; |
30667bf3 AM |
2299 | asection *s; |
2300 | boolean relocs; | |
30667bf3 | 2301 | |
83c81bfe | 2302 | htab = hppa_link_hash_table (info); |
ebe50bae | 2303 | dynobj = htab->elf.dynobj; |
49e9d0d3 AM |
2304 | if (dynobj == NULL) |
2305 | abort (); | |
30667bf3 | 2306 | |
ebe50bae | 2307 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2308 | { |
2309 | /* Set the contents of the .interp section to the interpreter. */ | |
2310 | if (! info->shared) | |
2311 | { | |
2312 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
49e9d0d3 AM |
2313 | if (s == NULL) |
2314 | abort (); | |
30667bf3 AM |
2315 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; |
2316 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2317 | } | |
74d1c347 | 2318 | |
d5c73c2f | 2319 | /* Force millicode symbols local. */ |
ebe50bae | 2320 | elf_link_hash_traverse (&htab->elf, |
d5c73c2f AM |
2321 | clobber_millicode_symbols, |
2322 | info); | |
68fb2e56 AM |
2323 | } |
2324 | else | |
2325 | { | |
2326 | /* Run through the function symbols, looking for any that are | |
a8d02d66 AM |
2327 | PIC, and mark them as needing .plt entries so that %r19 will |
2328 | be set up. */ | |
68fb2e56 | 2329 | if (! info->shared) |
a8d02d66 | 2330 | elf_link_hash_traverse (&htab->elf, mark_PIC_calls, (PTR) info); |
68fb2e56 | 2331 | } |
d5c73c2f | 2332 | |
98ceb8ce AM |
2333 | /* Set up .got and .plt offsets for local syms, and space for local |
2334 | dynamic relocs. */ | |
2335 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
68fb2e56 AM |
2336 | { |
2337 | bfd_signed_vma *local_got; | |
2338 | bfd_signed_vma *end_local_got; | |
2339 | bfd_signed_vma *local_plt; | |
2340 | bfd_signed_vma *end_local_plt; | |
2341 | bfd_size_type locsymcount; | |
2342 | Elf_Internal_Shdr *symtab_hdr; | |
2343 | asection *srel; | |
74d1c347 | 2344 | |
98ceb8ce | 2345 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2346 | continue; |
4dc86686 | 2347 | |
98ceb8ce AM |
2348 | for (s = ibfd->sections; s != NULL; s = s->next) |
2349 | { | |
ec338859 | 2350 | struct elf32_hppa_dyn_reloc_entry *p; |
98ceb8ce | 2351 | |
ec338859 AM |
2352 | for (p = ((struct elf32_hppa_dyn_reloc_entry *) |
2353 | elf_section_data (s)->local_dynrel); | |
2354 | p != NULL; | |
2355 | p = p->next) | |
98ceb8ce | 2356 | { |
ec338859 AM |
2357 | if (!bfd_is_abs_section (p->sec) |
2358 | && bfd_is_abs_section (p->sec->output_section)) | |
2359 | { | |
2360 | /* Input section has been discarded, either because | |
2361 | it is a copy of a linkonce section or due to | |
2362 | linker script /DISCARD/, so we'll be discarding | |
2363 | the relocs too. */ | |
2364 | } | |
248866a8 | 2365 | else if (p->count != 0) |
ec338859 AM |
2366 | { |
2367 | srel = elf_section_data (p->sec)->sreloc; | |
2368 | srel->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
248866a8 AM |
2369 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
2370 | info->flags |= DF_TEXTREL; | |
ec338859 | 2371 | } |
98ceb8ce AM |
2372 | } |
2373 | } | |
2374 | ||
2375 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2376 | if (!local_got) |
2377 | continue; | |
74d1c347 | 2378 | |
98ceb8ce | 2379 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2380 | locsymcount = symtab_hdr->sh_info; |
2381 | end_local_got = local_got + locsymcount; | |
83c81bfe AM |
2382 | s = htab->sgot; |
2383 | srel = htab->srelgot; | |
68fb2e56 AM |
2384 | for (; local_got < end_local_got; ++local_got) |
2385 | { | |
2386 | if (*local_got > 0) | |
4dc86686 | 2387 | { |
68fb2e56 AM |
2388 | *local_got = s->_raw_size; |
2389 | s->_raw_size += GOT_ENTRY_SIZE; | |
2390 | if (info->shared) | |
2391 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
4dc86686 | 2392 | } |
68fb2e56 AM |
2393 | else |
2394 | *local_got = (bfd_vma) -1; | |
2395 | } | |
74d1c347 | 2396 | |
68fb2e56 AM |
2397 | local_plt = end_local_got; |
2398 | end_local_plt = local_plt + locsymcount; | |
ebe50bae | 2399 | if (! htab->elf.dynamic_sections_created) |
68fb2e56 AM |
2400 | { |
2401 | /* Won't be used, but be safe. */ | |
2402 | for (; local_plt < end_local_plt; ++local_plt) | |
2403 | *local_plt = (bfd_vma) -1; | |
2404 | } | |
2405 | else | |
2406 | { | |
83c81bfe AM |
2407 | s = htab->splt; |
2408 | srel = htab->srelplt; | |
74d1c347 AM |
2409 | for (; local_plt < end_local_plt; ++local_plt) |
2410 | { | |
2411 | if (*local_plt > 0) | |
2412 | { | |
74d1c347 AM |
2413 | *local_plt = s->_raw_size; |
2414 | s->_raw_size += PLT_ENTRY_SIZE; | |
2415 | if (info->shared) | |
4dc86686 | 2416 | srel->_raw_size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2417 | } |
2418 | else | |
2419 | *local_plt = (bfd_vma) -1; | |
2420 | } | |
2421 | } | |
30667bf3 | 2422 | } |
30667bf3 | 2423 | |
e5ee5df1 AM |
2424 | /* Do all the .plt entries without relocs first. The dynamic linker |
2425 | uses the last .plt reloc to find the end of the .plt (and hence | |
2426 | the start of the .got) for lazy linking. */ | |
2427 | elf_link_hash_traverse (&htab->elf, allocate_plt_static, (PTR) info); | |
a8d02d66 | 2428 | |
98ceb8ce AM |
2429 | /* Allocate global sym .plt and .got entries, and space for global |
2430 | sym dynamic relocs. */ | |
ebe50bae | 2431 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info); |
30667bf3 AM |
2432 | |
2433 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2434 | determined the sizes of the various dynamic sections. Allocate | |
2435 | memory for them. */ | |
2436 | relocs = false; | |
30667bf3 AM |
2437 | for (s = dynobj->sections; s != NULL; s = s->next) |
2438 | { | |
30667bf3 AM |
2439 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2440 | continue; | |
2441 | ||
83c81bfe | 2442 | if (s == htab->splt) |
68fb2e56 | 2443 | { |
83c81bfe | 2444 | if (htab->need_plt_stub) |
68fb2e56 AM |
2445 | { |
2446 | /* Make space for the plt stub at the end of the .plt | |
2447 | section. We want this stub right at the end, up | |
2448 | against the .got section. */ | |
83c81bfe | 2449 | int gotalign = bfd_section_alignment (dynobj, htab->sgot); |
68fb2e56 AM |
2450 | int pltalign = bfd_section_alignment (dynobj, s); |
2451 | bfd_size_type mask; | |
30667bf3 | 2452 | |
68fb2e56 AM |
2453 | if (gotalign > pltalign) |
2454 | bfd_set_section_alignment (dynobj, s, gotalign); | |
2455 | mask = ((bfd_size_type) 1 << gotalign) - 1; | |
2456 | s->_raw_size = (s->_raw_size + sizeof (plt_stub) + mask) & ~mask; | |
2457 | } | |
2458 | } | |
83c81bfe | 2459 | else if (s == htab->sgot) |
68fb2e56 AM |
2460 | ; |
2461 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) | |
30667bf3 AM |
2462 | { |
2463 | if (s->_raw_size != 0) | |
2464 | { | |
4e12ff7f AM |
2465 | /* Remember whether there are any reloc sections other |
2466 | than .rela.plt. */ | |
2467 | if (s != htab->srelplt) | |
2468 | relocs = true; | |
47d89dba | 2469 | |
30667bf3 AM |
2470 | /* We use the reloc_count field as a counter if we need |
2471 | to copy relocs into the output file. */ | |
2472 | s->reloc_count = 0; | |
2473 | } | |
2474 | } | |
30667bf3 AM |
2475 | else |
2476 | { | |
2477 | /* It's not one of our sections, so don't allocate space. */ | |
2478 | continue; | |
2479 | } | |
2480 | ||
2481 | if (s->_raw_size == 0) | |
2482 | { | |
2483 | /* If we don't need this section, strip it from the | |
2484 | output file. This is mostly to handle .rela.bss and | |
2485 | .rela.plt. We must create both sections in | |
2486 | create_dynamic_sections, because they must be created | |
2487 | before the linker maps input sections to output | |
2488 | sections. The linker does that before | |
2489 | adjust_dynamic_symbol is called, and it is that | |
2490 | function which decides whether anything needs to go | |
2491 | into these sections. */ | |
2492 | _bfd_strip_section_from_output (info, s); | |
2493 | continue; | |
2494 | } | |
2495 | ||
2496 | /* Allocate memory for the section contents. Zero it, because | |
2497 | we may not fill in all the reloc sections. */ | |
2498 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); | |
2499 | if (s->contents == NULL && s->_raw_size != 0) | |
2500 | return false; | |
2501 | } | |
2502 | ||
ebe50bae | 2503 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2504 | { |
2505 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2506 | actually has nothing to do with the PLT, it is how we | |
2507 | communicate the LTP value of a load module to the dynamic | |
2508 | linker. */ | |
dc810e39 AM |
2509 | #define add_dynamic_entry(TAG, VAL) \ |
2510 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
2511 | ||
2512 | if (!add_dynamic_entry (DT_PLTGOT, 0)) | |
30667bf3 AM |
2513 | return false; |
2514 | ||
2515 | /* Add some entries to the .dynamic section. We fill in the | |
2516 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2517 | must add the entries now so that we get the correct size for | |
2518 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2519 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2520 | if (!info->shared) |
30667bf3 | 2521 | { |
dc810e39 | 2522 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
30667bf3 AM |
2523 | return false; |
2524 | } | |
2525 | ||
83c81bfe | 2526 | if (htab->srelplt->_raw_size != 0) |
30667bf3 | 2527 | { |
dc810e39 AM |
2528 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
2529 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2530 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
30667bf3 AM |
2531 | return false; |
2532 | } | |
2533 | ||
2534 | if (relocs) | |
2535 | { | |
dc810e39 AM |
2536 | if (!add_dynamic_entry (DT_RELA, 0) |
2537 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2538 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
30667bf3 | 2539 | return false; |
30667bf3 | 2540 | |
98ceb8ce AM |
2541 | /* If any dynamic relocs apply to a read-only section, |
2542 | then we need a DT_TEXTREL entry. */ | |
248866a8 AM |
2543 | if ((info->flags & DF_TEXTREL) == 0) |
2544 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, | |
2545 | (PTR) info); | |
98ceb8ce AM |
2546 | |
2547 | if ((info->flags & DF_TEXTREL) != 0) | |
2548 | { | |
2549 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
2550 | return false; | |
2551 | } | |
30667bf3 AM |
2552 | } |
2553 | } | |
dc810e39 | 2554 | #undef add_dynamic_entry |
30667bf3 AM |
2555 | |
2556 | return true; | |
2557 | } | |
2558 | ||
30667bf3 AM |
2559 | /* External entry points for sizing and building linker stubs. */ |
2560 | ||
b4655ea9 AM |
2561 | /* Set up various things so that we can make a list of input sections |
2562 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 2563 | 0 when no stubs will be needed, and 1 on success. */ |
30667bf3 | 2564 | |
b4655ea9 AM |
2565 | int |
2566 | elf32_hppa_setup_section_lists (output_bfd, info) | |
25f72752 | 2567 | bfd *output_bfd; |
30667bf3 | 2568 | struct bfd_link_info *info; |
30667bf3 AM |
2569 | { |
2570 | bfd *input_bfd; | |
b4655ea9 AM |
2571 | unsigned int bfd_count; |
2572 | int top_id, top_index; | |
30667bf3 | 2573 | asection *section; |
25f72752 | 2574 | asection **input_list, **list; |
dc810e39 | 2575 | bfd_size_type amt; |
b4655ea9 | 2576 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
30667bf3 | 2577 | |
b4655ea9 AM |
2578 | if (htab->elf.root.creator->flavour != bfd_target_elf_flavour) |
2579 | return 0; | |
30667bf3 | 2580 | |
1badb539 AM |
2581 | /* Count the number of input BFDs and find the top input section id. */ |
2582 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2583 | input_bfd != NULL; |
2584 | input_bfd = input_bfd->link_next) | |
2585 | { | |
2586 | bfd_count += 1; | |
25f72752 AM |
2587 | for (section = input_bfd->sections; |
2588 | section != NULL; | |
2589 | section = section->next) | |
2590 | { | |
2591 | if (top_id < section->id) | |
2592 | top_id = section->id; | |
2593 | } | |
30667bf3 | 2594 | } |
b4655ea9 | 2595 | htab->bfd_count = bfd_count; |
30667bf3 | 2596 | |
dc810e39 | 2597 | amt = sizeof (struct map_stub) * (top_id + 1); |
83c81bfe AM |
2598 | htab->stub_group = (struct map_stub *) bfd_zmalloc (amt); |
2599 | if (htab->stub_group == NULL) | |
b4655ea9 | 2600 | return -1; |
1badb539 | 2601 | |
b4655ea9 | 2602 | /* We can't use output_bfd->section_count here to find the top output |
1badb539 AM |
2603 | section index as some sections may have been removed, and |
2604 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
2605 | for (section = output_bfd->sections, top_index = 0; | |
2606 | section != NULL; | |
2607 | section = section->next) | |
2608 | { | |
2609 | if (top_index < section->index) | |
2610 | top_index = section->index; | |
2611 | } | |
2612 | ||
b4655ea9 | 2613 | htab->top_index = top_index; |
dc810e39 AM |
2614 | amt = sizeof (asection *) * (top_index + 1); |
2615 | input_list = (asection **) bfd_malloc (amt); | |
b4655ea9 | 2616 | htab->input_list = input_list; |
25f72752 | 2617 | if (input_list == NULL) |
b4655ea9 | 2618 | return -1; |
25f72752 | 2619 | |
1badb539 AM |
2620 | /* For sections we aren't interested in, mark their entries with a |
2621 | value we can check later. */ | |
2622 | list = input_list + top_index; | |
2623 | do | |
2624 | *list = bfd_abs_section_ptr; | |
2625 | while (list-- != input_list); | |
2626 | ||
2627 | for (section = output_bfd->sections; | |
2628 | section != NULL; | |
2629 | section = section->next) | |
2630 | { | |
47d89dba | 2631 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2632 | input_list[section->index] = NULL; |
2633 | } | |
2634 | ||
b4655ea9 AM |
2635 | return 1; |
2636 | } | |
2637 | ||
2638 | /* The linker repeatedly calls this function for each input section, | |
2639 | in the order that input sections are linked into output sections. | |
2640 | Build lists of input sections to determine groupings between which | |
2641 | we may insert linker stubs. */ | |
2642 | ||
2643 | void | |
2644 | elf32_hppa_next_input_section (info, isec) | |
2645 | struct bfd_link_info *info; | |
2646 | asection *isec; | |
2647 | { | |
2648 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
2649 | ||
2650 | if (isec->output_section->index <= htab->top_index) | |
25f72752 | 2651 | { |
b4655ea9 AM |
2652 | asection **list = htab->input_list + isec->output_section->index; |
2653 | if (*list != bfd_abs_section_ptr) | |
25f72752 | 2654 | { |
b4655ea9 | 2655 | /* Steal the link_sec pointer for our list. */ |
83c81bfe | 2656 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
b4655ea9 AM |
2657 | /* This happens to make the list in reverse order, |
2658 | which is what we want. */ | |
2659 | PREV_SEC (isec) = *list; | |
2660 | *list = isec; | |
25f72752 AM |
2661 | } |
2662 | } | |
b4655ea9 | 2663 | } |
25f72752 | 2664 | |
b4655ea9 AM |
2665 | /* See whether we can group stub sections together. Grouping stub |
2666 | sections may result in fewer stubs. More importantly, we need to | |
2667 | put all .init* and .fini* stubs at the beginning of the .init or | |
2668 | .fini output sections respectively, because glibc splits the | |
2669 | _init and _fini functions into multiple parts. Putting a stub in | |
2670 | the middle of a function is not a good idea. */ | |
2671 | ||
2672 | static void | |
2673 | group_sections (htab, stub_group_size, stubs_always_before_branch) | |
2674 | struct elf32_hppa_link_hash_table *htab; | |
2675 | bfd_size_type stub_group_size; | |
2676 | boolean stubs_always_before_branch; | |
2677 | { | |
2678 | asection **list = htab->input_list + htab->top_index; | |
1badb539 | 2679 | do |
25f72752 AM |
2680 | { |
2681 | asection *tail = *list; | |
1badb539 AM |
2682 | if (tail == bfd_abs_section_ptr) |
2683 | continue; | |
25f72752 AM |
2684 | while (tail != NULL) |
2685 | { | |
2686 | asection *curr; | |
2687 | asection *prev; | |
2688 | bfd_size_type total; | |
2689 | ||
2690 | curr = tail; | |
2691 | if (tail->_cooked_size) | |
2692 | total = tail->_cooked_size; | |
2693 | else | |
2694 | total = tail->_raw_size; | |
2695 | while ((prev = PREV_SEC (curr)) != NULL | |
2696 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2697 | < stub_group_size)) |
25f72752 AM |
2698 | curr = prev; |
2699 | ||
2700 | /* OK, the size from the start of CURR to the end is less | |
a248e267 | 2701 | than 240000 bytes and thus can be handled by one stub |
25f72752 | 2702 | section. (or the tail section is itself larger than |
a248e267 | 2703 | 240000 bytes, in which case we may be toast.) |
25f72752 AM |
2704 | We should really be keeping track of the total size of |
2705 | stubs added here, as stubs contribute to the final output | |
2706 | section size. That's a little tricky, and this way will | |
a248e267 AM |
2707 | only break if stubs added total more than 22144 bytes, or |
2708 | 2768 long branch stubs. It seems unlikely for more than | |
2709 | 2768 different functions to be called, especially from | |
2710 | code only 240000 bytes long. This limit used to be | |
2711 | 250000, but c++ code tends to generate lots of little | |
2712 | functions, and sometimes violated the assumption. */ | |
25f72752 AM |
2713 | do |
2714 | { | |
2715 | prev = PREV_SEC (tail); | |
2716 | /* Set up this stub group. */ | |
83c81bfe | 2717 | htab->stub_group[tail->id].link_sec = curr; |
25f72752 AM |
2718 | } |
2719 | while (tail != curr && (tail = prev) != NULL); | |
2720 | ||
a248e267 | 2721 | /* But wait, there's more! Input sections up to 240000 |
25f72752 | 2722 | bytes before the stub section can be handled by it too. */ |
47d89dba | 2723 | if (!stubs_always_before_branch) |
25f72752 | 2724 | { |
47d89dba AM |
2725 | total = 0; |
2726 | while (prev != NULL | |
2727 | && ((total += tail->output_offset - prev->output_offset) | |
2728 | < stub_group_size)) | |
2729 | { | |
2730 | tail = prev; | |
2731 | prev = PREV_SEC (tail); | |
83c81bfe | 2732 | htab->stub_group[tail->id].link_sec = curr; |
47d89dba | 2733 | } |
25f72752 AM |
2734 | } |
2735 | tail = prev; | |
2736 | } | |
2737 | } | |
b4655ea9 AM |
2738 | while (list-- != htab->input_list); |
2739 | free (htab->input_list); | |
1badb539 | 2740 | #undef PREV_SEC |
b4655ea9 AM |
2741 | } |
2742 | ||
2743 | /* Read in all local syms for all input bfds, and create hash entries | |
2744 | for export stubs if we are building a multi-subspace shared lib. | |
2745 | Returns -1 on error, 1 if export stubs created, 0 otherwise. */ | |
2746 | ||
2747 | static int | |
2748 | get_local_syms (output_bfd, input_bfd, info) | |
2749 | bfd *output_bfd; | |
2750 | bfd *input_bfd; | |
2751 | struct bfd_link_info *info; | |
2752 | { | |
2753 | unsigned int bfd_indx; | |
2754 | Elf_Internal_Sym *local_syms, **all_local_syms; | |
2755 | int stub_changed = 0; | |
2756 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
30667bf3 AM |
2757 | |
2758 | /* We want to read in symbol extension records only once. To do this | |
2759 | we need to read in the local symbols in parallel and save them for | |
2760 | later use; so hold pointers to the local symbols in an array. */ | |
b4655ea9 | 2761 | bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count; |
dc810e39 | 2762 | all_local_syms = (Elf_Internal_Sym **) bfd_zmalloc (amt); |
b4655ea9 | 2763 | htab->all_local_syms = all_local_syms; |
30667bf3 | 2764 | if (all_local_syms == NULL) |
b4655ea9 | 2765 | return -1; |
30667bf3 AM |
2766 | |
2767 | /* Walk over all the input BFDs, swapping in local symbols. | |
2768 | If we are creating a shared library, create hash entries for the | |
2769 | export stubs. */ | |
b4655ea9 | 2770 | for (bfd_indx = 0; |
30667bf3 | 2771 | input_bfd != NULL; |
25f72752 | 2772 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2773 | { |
2774 | Elf_Internal_Shdr *symtab_hdr; | |
9ad5cbcf | 2775 | Elf_Internal_Shdr *shndx_hdr; |
30667bf3 | 2776 | Elf_Internal_Sym *isym; |
25f72752 | 2777 | Elf32_External_Sym *ext_syms, *esym, *end_sy; |
9ad5cbcf | 2778 | Elf_External_Sym_Shndx *shndx_buf, *shndx; |
dc810e39 | 2779 | bfd_size_type sec_size; |
edd21aca | 2780 | |
252b5132 RH |
2781 | /* We'll need the symbol table in a second. */ |
2782 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2783 | if (symtab_hdr->sh_info == 0) | |
2784 | continue; | |
2785 | ||
edd21aca AM |
2786 | /* We need an array of the local symbols attached to the input bfd. |
2787 | Unfortunately, we're going to have to read & swap them in. */ | |
dc810e39 AM |
2788 | sec_size = symtab_hdr->sh_info; |
2789 | sec_size *= sizeof (Elf_Internal_Sym); | |
2790 | local_syms = (Elf_Internal_Sym *) bfd_malloc (sec_size); | |
edd21aca | 2791 | if (local_syms == NULL) |
b4655ea9 | 2792 | return -1; |
9ad5cbcf | 2793 | |
25f72752 | 2794 | all_local_syms[bfd_indx] = local_syms; |
dc810e39 AM |
2795 | sec_size = symtab_hdr->sh_info; |
2796 | sec_size *= sizeof (Elf32_External_Sym); | |
2797 | ext_syms = (Elf32_External_Sym *) bfd_malloc (sec_size); | |
edd21aca | 2798 | if (ext_syms == NULL) |
b4655ea9 | 2799 | return -1; |
edd21aca AM |
2800 | |
2801 | if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
9ad5cbcf | 2802 | || bfd_bread ((PTR) ext_syms, sec_size, input_bfd) != sec_size) |
edd21aca | 2803 | { |
9ad5cbcf | 2804 | error_ret_free_ext_syms: |
edd21aca | 2805 | free (ext_syms); |
b4655ea9 | 2806 | return -1; |
edd21aca AM |
2807 | } |
2808 | ||
9ad5cbcf AM |
2809 | shndx_buf = NULL; |
2810 | shndx_hdr = &elf_tdata (input_bfd)->symtab_shndx_hdr; | |
2811 | if (shndx_hdr->sh_size != 0) | |
2812 | { | |
2813 | sec_size = symtab_hdr->sh_info; | |
2814 | sec_size *= sizeof (Elf_External_Sym_Shndx); | |
2815 | shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (sec_size); | |
2816 | if (shndx_buf == NULL) | |
2817 | goto error_ret_free_ext_syms; | |
2818 | ||
2819 | if (bfd_seek (input_bfd, shndx_hdr->sh_offset, SEEK_SET) != 0 | |
2820 | || bfd_bread ((PTR) shndx_buf, sec_size, input_bfd) != sec_size) | |
2821 | { | |
2822 | free (shndx_buf); | |
2823 | goto error_ret_free_ext_syms; | |
2824 | } | |
2825 | } | |
2826 | ||
edd21aca | 2827 | /* Swap the local symbols in. */ |
9ad5cbcf AM |
2828 | for (esym = ext_syms, end_sy = esym + symtab_hdr->sh_info, |
2829 | isym = local_syms, shndx = shndx_buf; | |
2830 | esym < end_sy; | |
2831 | esym++, isym++, shndx = (shndx ? shndx + 1 : NULL)) | |
f8ecb12b AM |
2832 | bfd_elf32_swap_symbol_in (input_bfd, (const PTR) esym, |
2833 | (const PTR) shndx, isym); | |
edd21aca AM |
2834 | |
2835 | /* Now we can free the external symbols. */ | |
9ad5cbcf | 2836 | free (shndx_buf); |
edd21aca | 2837 | free (ext_syms); |
edd21aca | 2838 | |
83c81bfe | 2839 | if (info->shared && htab->multi_subspace) |
30667bf3 | 2840 | { |
25f72752 AM |
2841 | struct elf_link_hash_entry **sym_hashes; |
2842 | struct elf_link_hash_entry **end_hashes; | |
30667bf3 AM |
2843 | unsigned int symcount; |
2844 | ||
2845 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2846 | - symtab_hdr->sh_info); | |
25f72752 AM |
2847 | sym_hashes = elf_sym_hashes (input_bfd); |
2848 | end_hashes = sym_hashes + symcount; | |
30667bf3 AM |
2849 | |
2850 | /* Look through the global syms for functions; We need to | |
2851 | build export stubs for all globally visible functions. */ | |
25f72752 | 2852 | for (; sym_hashes < end_hashes; sym_hashes++) |
30667bf3 AM |
2853 | { |
2854 | struct elf32_hppa_link_hash_entry *hash; | |
2855 | ||
25f72752 | 2856 | hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes; |
30667bf3 AM |
2857 | |
2858 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2859 | || hash->elf.root.type == bfd_link_hash_warning) | |
2860 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2861 | hash->elf.root.u.i.link); | |
2862 | ||
2863 | /* At this point in the link, undefined syms have been | |
2864 | resolved, so we need to check that the symbol was | |
2865 | defined in this BFD. */ | |
2866 | if ((hash->elf.root.type == bfd_link_hash_defined | |
2867 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2868 | && hash->elf.type == STT_FUNC | |
2869 | && hash->elf.root.u.def.section->output_section != NULL | |
25f72752 AM |
2870 | && (hash->elf.root.u.def.section->output_section->owner |
2871 | == output_bfd) | |
30667bf3 AM |
2872 | && hash->elf.root.u.def.section->owner == input_bfd |
2873 | && (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
2874 | && !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) | |
2875 | && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT) | |
2876 | { | |
2877 | asection *sec; | |
2878 | const char *stub_name; | |
2879 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2880 | ||
2881 | sec = hash->elf.root.u.def.section; | |
2882 | stub_name = hash->elf.root.root.string; | |
83c81bfe | 2883 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
2884 | stub_name, |
2885 | false, false); | |
2886 | if (stub_entry == NULL) | |
2887 | { | |
83c81bfe | 2888 | stub_entry = hppa_add_stub (stub_name, sec, htab); |
30667bf3 | 2889 | if (!stub_entry) |
b4655ea9 | 2890 | return -1; |
30667bf3 AM |
2891 | |
2892 | stub_entry->target_value = hash->elf.root.u.def.value; | |
2893 | stub_entry->target_section = hash->elf.root.u.def.section; | |
2894 | stub_entry->stub_type = hppa_stub_export; | |
2895 | stub_entry->h = hash; | |
2896 | stub_changed = 1; | |
2897 | } | |
2898 | else | |
2899 | { | |
2900 | (*_bfd_error_handler) (_("%s: duplicate export stub %s"), | |
8f615d07 AM |
2901 | bfd_archive_filename (input_bfd), |
2902 | stub_name); | |
30667bf3 AM |
2903 | } |
2904 | } | |
2905 | } | |
30667bf3 AM |
2906 | } |
2907 | } | |
edd21aca | 2908 | |
b4655ea9 AM |
2909 | return stub_changed; |
2910 | } | |
2911 | ||
2912 | /* Determine and set the size of the stub section for a final link. | |
2913 | ||
2914 | The basic idea here is to examine all the relocations looking for | |
2915 | PC-relative calls to a target that is unreachable with a "bl" | |
2916 | instruction. */ | |
2917 | ||
2918 | boolean | |
2919 | elf32_hppa_size_stubs (output_bfd, stub_bfd, info, multi_subspace, group_size, | |
2920 | add_stub_section, layout_sections_again) | |
2921 | bfd *output_bfd; | |
2922 | bfd *stub_bfd; | |
2923 | struct bfd_link_info *info; | |
2924 | boolean multi_subspace; | |
2925 | bfd_signed_vma group_size; | |
2926 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
2927 | void (*layout_sections_again) PARAMS ((void)); | |
2928 | { | |
2929 | bfd_size_type stub_group_size; | |
2930 | boolean stubs_always_before_branch; | |
2931 | boolean stub_changed; | |
2932 | boolean ret = 0; | |
2933 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
2934 | ||
2935 | /* Stash our params away. */ | |
2936 | htab->stub_bfd = stub_bfd; | |
2937 | htab->multi_subspace = multi_subspace; | |
2938 | htab->add_stub_section = add_stub_section; | |
2939 | htab->layout_sections_again = layout_sections_again; | |
2940 | stubs_always_before_branch = group_size < 0; | |
2941 | if (group_size < 0) | |
2942 | stub_group_size = -group_size; | |
2943 | else | |
2944 | stub_group_size = group_size; | |
2945 | if (stub_group_size == 1) | |
2946 | { | |
2947 | /* Default values. */ | |
2948 | stub_group_size = 7680000; | |
2949 | if (htab->has_17bit_branch || htab->multi_subspace) | |
2950 | stub_group_size = 240000; | |
2951 | if (htab->has_12bit_branch) | |
2952 | stub_group_size = 7500; | |
2953 | } | |
2954 | ||
2955 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
2956 | ||
2957 | switch (get_local_syms (output_bfd, info->input_bfds, info)) | |
2958 | { | |
2959 | default: | |
2960 | if (htab->all_local_syms) | |
2961 | goto error_ret_free_local; | |
2962 | return false; | |
2963 | ||
2964 | case 0: | |
2965 | stub_changed = false; | |
2966 | break; | |
2967 | ||
2968 | case 1: | |
2969 | stub_changed = true; | |
2970 | break; | |
2971 | } | |
2972 | ||
edd21aca AM |
2973 | while (1) |
2974 | { | |
b4655ea9 AM |
2975 | bfd *input_bfd; |
2976 | unsigned int bfd_indx; | |
30667bf3 AM |
2977 | asection *stub_sec; |
2978 | ||
25f72752 | 2979 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2980 | input_bfd != NULL; |
25f72752 | 2981 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2982 | { |
2983 | Elf_Internal_Shdr *symtab_hdr; | |
b4655ea9 AM |
2984 | asection *section; |
2985 | Elf_Internal_Sym *local_syms; | |
30667bf3 AM |
2986 | |
2987 | /* We'll need the symbol table in a second. */ | |
2988 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2989 | if (symtab_hdr->sh_info == 0) | |
2990 | continue; | |
2991 | ||
b4655ea9 | 2992 | local_syms = htab->all_local_syms[bfd_indx]; |
30667bf3 AM |
2993 | |
2994 | /* Walk over each section attached to the input bfd. */ | |
2995 | for (section = input_bfd->sections; | |
2996 | section != NULL; | |
25f72752 | 2997 | section = section->next) |
30667bf3 AM |
2998 | { |
2999 | Elf_Internal_Shdr *input_rel_hdr; | |
3000 | Elf32_External_Rela *external_relocs, *erelaend, *erela; | |
3001 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; | |
b4655ea9 | 3002 | bfd_size_type amt; |
30667bf3 AM |
3003 | |
3004 | /* If there aren't any relocs, then there's nothing more | |
3005 | to do. */ | |
3006 | if ((section->flags & SEC_RELOC) == 0 | |
3007 | || section->reloc_count == 0) | |
3008 | continue; | |
3009 | ||
25f72752 AM |
3010 | /* If this section is a link-once section that will be |
3011 | discarded, then don't create any stubs. */ | |
3012 | if (section->output_section == NULL | |
3013 | || section->output_section->owner != output_bfd) | |
3014 | continue; | |
3015 | ||
30667bf3 | 3016 | /* Allocate space for the external relocations. */ |
dc810e39 AM |
3017 | amt = section->reloc_count; |
3018 | amt *= sizeof (Elf32_External_Rela); | |
3019 | external_relocs = (Elf32_External_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
3020 | if (external_relocs == NULL) |
3021 | { | |
3022 | goto error_ret_free_local; | |
3023 | } | |
3024 | ||
3025 | /* Likewise for the internal relocations. */ | |
dc810e39 AM |
3026 | amt = section->reloc_count; |
3027 | amt *= sizeof (Elf_Internal_Rela); | |
3028 | internal_relocs = (Elf_Internal_Rela *) bfd_malloc (amt); | |
30667bf3 AM |
3029 | if (internal_relocs == NULL) |
3030 | { | |
3031 | free (external_relocs); | |
3032 | goto error_ret_free_local; | |
3033 | } | |
3034 | ||
3035 | /* Read in the external relocs. */ | |
3036 | input_rel_hdr = &elf_section_data (section)->rel_hdr; | |
3037 | if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0 | |
9ad5cbcf AM |
3038 | || bfd_bread ((PTR) external_relocs, |
3039 | input_rel_hdr->sh_size, | |
3040 | input_bfd) != input_rel_hdr->sh_size) | |
30667bf3 AM |
3041 | { |
3042 | free (external_relocs); | |
3043 | error_ret_free_internal: | |
3044 | free (internal_relocs); | |
3045 | goto error_ret_free_local; | |
3046 | } | |
3047 | ||
3048 | /* Swap in the relocs. */ | |
3049 | erela = external_relocs; | |
3050 | erelaend = erela + section->reloc_count; | |
3051 | irela = internal_relocs; | |
3052 | for (; erela < erelaend; erela++, irela++) | |
3053 | bfd_elf32_swap_reloca_in (input_bfd, erela, irela); | |
3054 | ||
3055 | /* We're done with the external relocs, free them. */ | |
3056 | free (external_relocs); | |
3057 | ||
3058 | /* Now examine each relocation. */ | |
3059 | irela = internal_relocs; | |
3060 | irelaend = irela + section->reloc_count; | |
3061 | for (; irela < irelaend; irela++) | |
3062 | { | |
3063 | unsigned int r_type, r_indx; | |
3064 | enum elf32_hppa_stub_type stub_type; | |
3065 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
3066 | asection *sym_sec; | |
3067 | bfd_vma sym_value; | |
3068 | bfd_vma destination; | |
3069 | struct elf32_hppa_link_hash_entry *hash; | |
3070 | char *stub_name; | |
25f72752 | 3071 | const asection *id_sec; |
30667bf3 AM |
3072 | |
3073 | r_type = ELF32_R_TYPE (irela->r_info); | |
3074 | r_indx = ELF32_R_SYM (irela->r_info); | |
3075 | ||
3076 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3077 | { | |
3078 | bfd_set_error (bfd_error_bad_value); | |
3079 | goto error_ret_free_internal; | |
3080 | } | |
3081 | ||
3082 | /* Only look for stubs on call instructions. */ | |
3083 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
3084 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
3085 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
3086 | continue; | |
3087 | ||
3088 | /* Now determine the call target, its name, value, | |
3089 | section. */ | |
3090 | sym_sec = NULL; | |
3091 | sym_value = 0; | |
3092 | destination = 0; | |
3093 | hash = NULL; | |
3094 | if (r_indx < symtab_hdr->sh_info) | |
3095 | { | |
3096 | /* It's a local symbol. */ | |
3097 | Elf_Internal_Sym *sym; | |
3098 | Elf_Internal_Shdr *hdr; | |
3099 | ||
3100 | sym = local_syms + r_indx; | |
3101 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
3102 | sym_sec = hdr->bfd_section; | |
3103 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
3104 | sym_value = sym->st_value; | |
3105 | destination = (sym_value + irela->r_addend | |
3106 | + sym_sec->output_offset | |
3107 | + sym_sec->output_section->vma); | |
3108 | } | |
3109 | else | |
3110 | { | |
3111 | /* It's an external symbol. */ | |
3112 | int e_indx; | |
3113 | ||
3114 | e_indx = r_indx - symtab_hdr->sh_info; | |
3115 | hash = ((struct elf32_hppa_link_hash_entry *) | |
3116 | elf_sym_hashes (input_bfd)[e_indx]); | |
3117 | ||
3118 | while (hash->elf.root.type == bfd_link_hash_indirect | |
3119 | || hash->elf.root.type == bfd_link_hash_warning) | |
3120 | hash = ((struct elf32_hppa_link_hash_entry *) | |
3121 | hash->elf.root.u.i.link); | |
3122 | ||
3123 | if (hash->elf.root.type == bfd_link_hash_defined | |
3124 | || hash->elf.root.type == bfd_link_hash_defweak) | |
3125 | { | |
3126 | sym_sec = hash->elf.root.u.def.section; | |
3127 | sym_value = hash->elf.root.u.def.value; | |
3128 | if (sym_sec->output_section != NULL) | |
3129 | destination = (sym_value + irela->r_addend | |
3130 | + sym_sec->output_offset | |
3131 | + sym_sec->output_section->vma); | |
3132 | } | |
3133 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
c432ba1a AM |
3134 | { |
3135 | if (! info->shared) | |
3136 | continue; | |
3137 | } | |
30667bf3 | 3138 | else if (hash->elf.root.type == bfd_link_hash_undefined) |
c432ba1a AM |
3139 | { |
3140 | if (! (info->shared | |
3141 | && !info->no_undefined | |
3142 | && (ELF_ST_VISIBILITY (hash->elf.other) | |
3143 | == STV_DEFAULT) | |
3144 | && hash->elf.type != STT_PARISC_MILLI)) | |
3145 | continue; | |
3146 | } | |
30667bf3 AM |
3147 | else |
3148 | { | |
3149 | bfd_set_error (bfd_error_bad_value); | |
3150 | goto error_ret_free_internal; | |
3151 | } | |
3152 | } | |
3153 | ||
3154 | /* Determine what (if any) linker stub is needed. */ | |
3155 | stub_type = hppa_type_of_stub (section, irela, hash, | |
3156 | destination); | |
3157 | if (stub_type == hppa_stub_none) | |
3158 | continue; | |
3159 | ||
25f72752 | 3160 | /* Support for grouping stub sections. */ |
83c81bfe | 3161 | id_sec = htab->stub_group[section->id].link_sec; |
25f72752 | 3162 | |
30667bf3 | 3163 | /* Get the name of this stub. */ |
25f72752 | 3164 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela); |
30667bf3 AM |
3165 | if (!stub_name) |
3166 | goto error_ret_free_internal; | |
3167 | ||
83c81bfe | 3168 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 AM |
3169 | stub_name, |
3170 | false, false); | |
3171 | if (stub_entry != NULL) | |
3172 | { | |
3173 | /* The proper stub has already been created. */ | |
3174 | free (stub_name); | |
3175 | continue; | |
3176 | } | |
3177 | ||
83c81bfe | 3178 | stub_entry = hppa_add_stub (stub_name, section, htab); |
30667bf3 AM |
3179 | if (stub_entry == NULL) |
3180 | { | |
3181 | free (stub_name); | |
3182 | goto error_ret_free_local; | |
3183 | } | |
3184 | ||
3185 | stub_entry->target_value = sym_value; | |
3186 | stub_entry->target_section = sym_sec; | |
3187 | stub_entry->stub_type = stub_type; | |
3188 | if (info->shared) | |
3189 | { | |
3190 | if (stub_type == hppa_stub_import) | |
3191 | stub_entry->stub_type = hppa_stub_import_shared; | |
98ceb8ce | 3192 | else if (stub_type == hppa_stub_long_branch) |
30667bf3 AM |
3193 | stub_entry->stub_type = hppa_stub_long_branch_shared; |
3194 | } | |
3195 | stub_entry->h = hash; | |
b4655ea9 | 3196 | stub_changed = true; |
30667bf3 AM |
3197 | } |
3198 | ||
3199 | /* We're done with the internal relocs, free them. */ | |
3200 | free (internal_relocs); | |
3201 | } | |
3202 | } | |
3203 | ||
3204 | if (!stub_changed) | |
3205 | break; | |
3206 | ||
3207 | /* OK, we've added some stubs. Find out the new size of the | |
3208 | stub sections. */ | |
83c81bfe | 3209 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3210 | stub_sec != NULL; |
3211 | stub_sec = stub_sec->next) | |
3212 | { | |
74d1c347 AM |
3213 | stub_sec->_raw_size = 0; |
3214 | stub_sec->_cooked_size = 0; | |
3215 | } | |
74d1c347 | 3216 | |
83c81bfe | 3217 | bfd_hash_traverse (&htab->stub_hash_table, hppa_size_one_stub, htab); |
74d1c347 | 3218 | |
30667bf3 | 3219 | /* Ask the linker to do its stuff. */ |
83c81bfe | 3220 | (*htab->layout_sections_again) (); |
b4655ea9 | 3221 | stub_changed = false; |
30667bf3 AM |
3222 | } |
3223 | ||
b4655ea9 | 3224 | ret = true; |
30667bf3 AM |
3225 | |
3226 | error_ret_free_local: | |
b4655ea9 AM |
3227 | while (htab->bfd_count-- > 0) |
3228 | if (htab->all_local_syms[htab->bfd_count]) | |
3229 | free (htab->all_local_syms[htab->bfd_count]); | |
3230 | free (htab->all_local_syms); | |
30667bf3 | 3231 | |
25f72752 | 3232 | return ret; |
30667bf3 AM |
3233 | } |
3234 | ||
30667bf3 AM |
3235 | /* For a final link, this function is called after we have sized the |
3236 | stubs to provide a value for __gp. */ | |
3237 | ||
3238 | boolean | |
3239 | elf32_hppa_set_gp (abfd, info) | |
3240 | bfd *abfd; | |
3241 | struct bfd_link_info *info; | |
3242 | { | |
b4655ea9 AM |
3243 | struct bfd_link_hash_entry *h; |
3244 | asection *sec = NULL; | |
3245 | bfd_vma gp_val = 0; | |
83c81bfe | 3246 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3247 | |
83c81bfe | 3248 | htab = hppa_link_hash_table (info); |
b4655ea9 | 3249 | h = bfd_link_hash_lookup (&htab->elf.root, "$global$", false, false, false); |
30667bf3 | 3250 | |
df8634e3 | 3251 | if (h != NULL |
b4655ea9 AM |
3252 | && (h->type == bfd_link_hash_defined |
3253 | || h->type == bfd_link_hash_defweak)) | |
30667bf3 | 3254 | { |
b4655ea9 AM |
3255 | gp_val = h->u.def.value; |
3256 | sec = h->u.def.section; | |
30667bf3 AM |
3257 | } |
3258 | else | |
3259 | { | |
b4655ea9 AM |
3260 | asection *splt; |
3261 | asection *sgot; | |
3262 | ||
3263 | if (htab->elf.root.creator->flavour == bfd_target_elf_flavour) | |
3264 | { | |
3265 | splt = htab->splt; | |
3266 | sgot = htab->sgot; | |
3267 | } | |
3268 | else | |
3269 | { | |
3270 | /* If we're not elf, look up the output sections in the | |
3271 | hope we may actually find them. */ | |
3272 | splt = bfd_get_section_by_name (abfd, ".plt"); | |
3273 | sgot = bfd_get_section_by_name (abfd, ".got"); | |
3274 | } | |
3275 | ||
74d1c347 AM |
3276 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
3277 | or .data, if these sections exist. In the case of choosing | |
3278 | .plt try to make the LTP ideal for addressing anywhere in the | |
3279 | .plt or .got with a 14 bit signed offset. Typically, the end | |
3280 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
3281 | if either the .plt or .got is larger than 0x2000. If both | |
3282 | the .plt and .got are smaller than 0x2000, choose the end of | |
3283 | the .plt section. */ | |
b4655ea9 | 3284 | sec = splt; |
74d1c347 | 3285 | if (sec != NULL) |
30667bf3 | 3286 | { |
74d1c347 | 3287 | gp_val = sec->_raw_size; |
b4655ea9 | 3288 | if (gp_val > 0x2000 || (sgot && sgot->_raw_size > 0x2000)) |
74d1c347 AM |
3289 | { |
3290 | gp_val = 0x2000; | |
3291 | } | |
3292 | } | |
3293 | else | |
3294 | { | |
b4655ea9 | 3295 | sec = sgot; |
74d1c347 AM |
3296 | if (sec != NULL) |
3297 | { | |
3298 | /* We know we don't have a .plt. If .got is large, | |
3299 | offset our LTP. */ | |
3300 | if (sec->_raw_size > 0x2000) | |
3301 | gp_val = 0x2000; | |
3302 | } | |
3303 | else | |
3304 | { | |
3305 | /* No .plt or .got. Who cares what the LTP is? */ | |
3306 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3307 | } | |
30667bf3 | 3308 | } |
df8634e3 AM |
3309 | |
3310 | if (h != NULL) | |
3311 | { | |
b4655ea9 AM |
3312 | h->type = bfd_link_hash_defined; |
3313 | h->u.def.value = gp_val; | |
df8634e3 | 3314 | if (sec != NULL) |
b4655ea9 | 3315 | h->u.def.section = sec; |
df8634e3 | 3316 | else |
b4655ea9 | 3317 | h->u.def.section = bfd_abs_section_ptr; |
df8634e3 | 3318 | } |
30667bf3 AM |
3319 | } |
3320 | ||
b32b5d6e | 3321 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
3322 | gp_val += sec->output_section->vma + sec->output_offset; |
3323 | ||
3324 | elf_gp (abfd) = gp_val; | |
30667bf3 AM |
3325 | return true; |
3326 | } | |
3327 | ||
30667bf3 AM |
3328 | /* Build all the stubs associated with the current output file. The |
3329 | stubs are kept in a hash table attached to the main linker hash | |
3330 | table. We also set up the .plt entries for statically linked PIC | |
3331 | functions here. This function is called via hppaelf_finish in the | |
3332 | linker. */ | |
3333 | ||
3334 | boolean | |
3335 | elf32_hppa_build_stubs (info) | |
3336 | struct bfd_link_info *info; | |
3337 | { | |
3338 | asection *stub_sec; | |
3339 | struct bfd_hash_table *table; | |
83c81bfe | 3340 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3341 | |
83c81bfe | 3342 | htab = hppa_link_hash_table (info); |
30667bf3 | 3343 | |
83c81bfe | 3344 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3345 | stub_sec != NULL; |
3346 | stub_sec = stub_sec->next) | |
3347 | { | |
dc810e39 | 3348 | bfd_size_type size; |
30667bf3 AM |
3349 | |
3350 | /* Allocate memory to hold the linker stubs. */ | |
74d1c347 | 3351 | size = stub_sec->_raw_size; |
83c81bfe | 3352 | stub_sec->contents = (unsigned char *) bfd_zalloc (htab->stub_bfd, size); |
30667bf3 AM |
3353 | if (stub_sec->contents == NULL && size != 0) |
3354 | return false; | |
74d1c347 | 3355 | stub_sec->_raw_size = 0; |
30667bf3 AM |
3356 | } |
3357 | ||
3358 | /* Build the stubs as directed by the stub hash table. */ | |
83c81bfe | 3359 | table = &htab->stub_hash_table; |
30667bf3 AM |
3360 | bfd_hash_traverse (table, hppa_build_one_stub, info); |
3361 | ||
3362 | return true; | |
3363 | } | |
3364 | ||
c46b7515 AM |
3365 | /* Perform a final link. */ |
3366 | ||
3367 | static boolean | |
3368 | elf32_hppa_final_link (abfd, info) | |
3369 | bfd *abfd; | |
3370 | struct bfd_link_info *info; | |
3371 | { | |
4dc86686 AM |
3372 | /* Invoke the regular ELF linker to do all the work. */ |
3373 | if (!bfd_elf32_bfd_final_link (abfd, info)) | |
c46b7515 AM |
3374 | return false; |
3375 | ||
3376 | /* If we're producing a final executable, sort the contents of the | |
985142a4 | 3377 | unwind section. */ |
46fe4e66 | 3378 | return elf_hppa_sort_unwind (abfd); |
c46b7515 AM |
3379 | } |
3380 | ||
3381 | /* Record the lowest address for the data and text segments. */ | |
3382 | ||
3383 | static void | |
3384 | hppa_record_segment_addr (abfd, section, data) | |
3385 | bfd *abfd ATTRIBUTE_UNUSED; | |
3386 | asection *section; | |
3387 | PTR data; | |
3388 | { | |
83c81bfe | 3389 | struct elf32_hppa_link_hash_table *htab; |
c46b7515 | 3390 | |
83c81bfe | 3391 | htab = (struct elf32_hppa_link_hash_table *) data; |
c46b7515 AM |
3392 | |
3393 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3394 | { | |
3395 | bfd_vma value = section->vma - section->filepos; | |
3396 | ||
3397 | if ((section->flags & SEC_READONLY) != 0) | |
3398 | { | |
83c81bfe AM |
3399 | if (value < htab->text_segment_base) |
3400 | htab->text_segment_base = value; | |
c46b7515 AM |
3401 | } |
3402 | else | |
3403 | { | |
83c81bfe AM |
3404 | if (value < htab->data_segment_base) |
3405 | htab->data_segment_base = value; | |
c46b7515 AM |
3406 | } |
3407 | } | |
3408 | } | |
3409 | ||
30667bf3 AM |
3410 | /* Perform a relocation as part of a final link. */ |
3411 | ||
3412 | static bfd_reloc_status_type | |
83c81bfe | 3413 | final_link_relocate (input_section, contents, rel, value, htab, sym_sec, h) |
30667bf3 AM |
3414 | asection *input_section; |
3415 | bfd_byte *contents; | |
3416 | const Elf_Internal_Rela *rel; | |
3417 | bfd_vma value; | |
83c81bfe | 3418 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3419 | asection *sym_sec; |
3420 | struct elf32_hppa_link_hash_entry *h; | |
3421 | { | |
3422 | int insn; | |
3423 | unsigned int r_type = ELF32_R_TYPE (rel->r_info); | |
3424 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; | |
3425 | int r_format = howto->bitsize; | |
3426 | enum hppa_reloc_field_selector_type_alt r_field; | |
3427 | bfd *input_bfd = input_section->owner; | |
3428 | bfd_vma offset = rel->r_offset; | |
3429 | bfd_vma max_branch_offset = 0; | |
3430 | bfd_byte *hit_data = contents + offset; | |
3431 | bfd_signed_vma addend = rel->r_addend; | |
3432 | bfd_vma location; | |
3433 | struct elf32_hppa_stub_hash_entry *stub_entry = NULL; | |
3434 | int val; | |
3435 | ||
3436 | if (r_type == R_PARISC_NONE) | |
3437 | return bfd_reloc_ok; | |
3438 | ||
3439 | insn = bfd_get_32 (input_bfd, hit_data); | |
3440 | ||
3441 | /* Find out where we are and where we're going. */ | |
3442 | location = (offset + | |
3443 | input_section->output_offset + | |
3444 | input_section->output_section->vma); | |
3445 | ||
3446 | switch (r_type) | |
3447 | { | |
3448 | case R_PARISC_PCREL12F: | |
3449 | case R_PARISC_PCREL17F: | |
3450 | case R_PARISC_PCREL22F: | |
067fa4a6 AM |
3451 | /* If this call should go via the plt, find the import stub in |
3452 | the stub hash. */ | |
30667bf3 AM |
3453 | if (sym_sec == NULL |
3454 | || sym_sec->output_section == NULL | |
12cca0d2 | 3455 | || (h != NULL |
067fa4a6 AM |
3456 | && h->elf.plt.offset != (bfd_vma) -1 |
3457 | && (h->elf.dynindx != -1 || h->pic_call) | |
3458 | && !h->plabel)) | |
30667bf3 AM |
3459 | { |
3460 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3461 | h, rel, htab); |
30667bf3 AM |
3462 | if (stub_entry != NULL) |
3463 | { | |
3464 | value = (stub_entry->stub_offset | |
3465 | + stub_entry->stub_sec->output_offset | |
3466 | + stub_entry->stub_sec->output_section->vma); | |
3467 | addend = 0; | |
3468 | } | |
3469 | else if (sym_sec == NULL && h != NULL | |
3470 | && h->elf.root.type == bfd_link_hash_undefweak) | |
3471 | { | |
db20fd76 AM |
3472 | /* It's OK if undefined weak. Calls to undefined weak |
3473 | symbols behave as if the "called" function | |
3474 | immediately returns. We can thus call to a weak | |
3475 | function without first checking whether the function | |
3476 | is defined. */ | |
30667bf3 | 3477 | value = location; |
db20fd76 | 3478 | addend = 8; |
30667bf3 AM |
3479 | } |
3480 | else | |
f09ebc7d | 3481 | return bfd_reloc_undefined; |
30667bf3 AM |
3482 | } |
3483 | /* Fall thru. */ | |
3484 | ||
3485 | case R_PARISC_PCREL21L: | |
3486 | case R_PARISC_PCREL17C: | |
3487 | case R_PARISC_PCREL17R: | |
3488 | case R_PARISC_PCREL14R: | |
3489 | case R_PARISC_PCREL14F: | |
3490 | /* Make it a pc relative offset. */ | |
3491 | value -= location; | |
3492 | addend -= 8; | |
3493 | break; | |
3494 | ||
3495 | case R_PARISC_DPREL21L: | |
3496 | case R_PARISC_DPREL14R: | |
3497 | case R_PARISC_DPREL14F: | |
3498 | /* For all the DP relative relocations, we need to examine the symbol's | |
3499 | section. If it's a code section, then "data pointer relative" makes | |
3500 | no sense. In that case we don't adjust the "value", and for 21 bit | |
3501 | addil instructions, we change the source addend register from %dp to | |
3502 | %r0. This situation commonly arises when a variable's "constness" | |
3503 | is declared differently from the way the variable is defined. For | |
3504 | instance: "extern int foo" with foo defined as "const int foo". */ | |
3505 | if (sym_sec == NULL) | |
3506 | break; | |
3507 | if ((sym_sec->flags & SEC_CODE) != 0) | |
3508 | { | |
3509 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3510 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3511 | { | |
3512 | insn &= ~ (0x1f << 21); | |
067fa4a6 | 3513 | #if 0 /* debug them. */ |
30667bf3 AM |
3514 | (*_bfd_error_handler) |
3515 | (_("%s(%s+0x%lx): fixing %s"), | |
8f615d07 | 3516 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3517 | input_section->name, |
3518 | (long) rel->r_offset, | |
3519 | howto->name); | |
3520 | #endif | |
3521 | } | |
3522 | /* Now try to make things easy for the dynamic linker. */ | |
3523 | ||
3524 | break; | |
3525 | } | |
74d1c347 | 3526 | /* Fall thru. */ |
30667bf3 AM |
3527 | |
3528 | case R_PARISC_DLTIND21L: | |
3529 | case R_PARISC_DLTIND14R: | |
3530 | case R_PARISC_DLTIND14F: | |
3531 | value -= elf_gp (input_section->output_section->owner); | |
3532 | break; | |
3533 | ||
c46b7515 AM |
3534 | case R_PARISC_SEGREL32: |
3535 | if ((sym_sec->flags & SEC_CODE) != 0) | |
83c81bfe | 3536 | value -= htab->text_segment_base; |
c46b7515 | 3537 | else |
83c81bfe | 3538 | value -= htab->data_segment_base; |
c46b7515 AM |
3539 | break; |
3540 | ||
30667bf3 AM |
3541 | default: |
3542 | break; | |
3543 | } | |
3544 | ||
3545 | switch (r_type) | |
3546 | { | |
3547 | case R_PARISC_DIR32: | |
47d89dba | 3548 | case R_PARISC_DIR14F: |
30667bf3 AM |
3549 | case R_PARISC_DIR17F: |
3550 | case R_PARISC_PCREL17C: | |
3551 | case R_PARISC_PCREL14F: | |
3552 | case R_PARISC_DPREL14F: | |
3553 | case R_PARISC_PLABEL32: | |
3554 | case R_PARISC_DLTIND14F: | |
3555 | case R_PARISC_SEGBASE: | |
3556 | case R_PARISC_SEGREL32: | |
3557 | r_field = e_fsel; | |
3558 | break; | |
3559 | ||
1bf42538 | 3560 | case R_PARISC_DLTIND21L: |
30667bf3 | 3561 | case R_PARISC_PCREL21L: |
30667bf3 | 3562 | case R_PARISC_PLABEL21L: |
1bf42538 JL |
3563 | r_field = e_lsel; |
3564 | break; | |
3565 | ||
3566 | case R_PARISC_DIR21L: | |
3567 | case R_PARISC_DPREL21L: | |
30667bf3 AM |
3568 | r_field = e_lrsel; |
3569 | break; | |
3570 | ||
30667bf3 | 3571 | case R_PARISC_PCREL17R: |
30667bf3 | 3572 | case R_PARISC_PCREL14R: |
30667bf3 AM |
3573 | case R_PARISC_PLABEL14R: |
3574 | case R_PARISC_DLTIND14R: | |
1bf42538 JL |
3575 | r_field = e_rsel; |
3576 | break; | |
3577 | ||
3578 | case R_PARISC_DIR17R: | |
3579 | case R_PARISC_DIR14R: | |
3580 | case R_PARISC_DPREL14R: | |
30667bf3 AM |
3581 | r_field = e_rrsel; |
3582 | break; | |
3583 | ||
3584 | case R_PARISC_PCREL12F: | |
3585 | case R_PARISC_PCREL17F: | |
3586 | case R_PARISC_PCREL22F: | |
3587 | r_field = e_fsel; | |
3588 | ||
3589 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3590 | { | |
3591 | max_branch_offset = (1 << (17-1)) << 2; | |
3592 | } | |
3593 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3594 | { | |
3595 | max_branch_offset = (1 << (12-1)) << 2; | |
3596 | } | |
3597 | else | |
3598 | { | |
3599 | max_branch_offset = (1 << (22-1)) << 2; | |
3600 | } | |
3601 | ||
3602 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3603 | undefined syms. We've already checked for a stub for the | |
3604 | shared undefined case. */ | |
3605 | if (sym_sec == NULL) | |
3606 | break; | |
3607 | ||
3608 | /* If the branch is out of reach, then redirect the | |
3609 | call to the local stub for this function. */ | |
3610 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3611 | { | |
3612 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3613 | h, rel, htab); |
30667bf3 | 3614 | if (stub_entry == NULL) |
f09ebc7d | 3615 | return bfd_reloc_undefined; |
30667bf3 AM |
3616 | |
3617 | /* Munge up the value and addend so that we call the stub | |
3618 | rather than the procedure directly. */ | |
3619 | value = (stub_entry->stub_offset | |
3620 | + stub_entry->stub_sec->output_offset | |
3621 | + stub_entry->stub_sec->output_section->vma | |
3622 | - location); | |
3623 | addend = -8; | |
3624 | } | |
3625 | break; | |
3626 | ||
3627 | /* Something we don't know how to handle. */ | |
3628 | default: | |
3629 | return bfd_reloc_notsupported; | |
3630 | } | |
3631 | ||
3632 | /* Make sure we can reach the stub. */ | |
3633 | if (max_branch_offset != 0 | |
3634 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3635 | { | |
3636 | (*_bfd_error_handler) | |
3637 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), | |
8f615d07 | 3638 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3639 | input_section->name, |
3640 | (long) rel->r_offset, | |
3641 | stub_entry->root.string); | |
ce757d15 | 3642 | bfd_set_error (bfd_error_bad_value); |
30667bf3 AM |
3643 | return bfd_reloc_notsupported; |
3644 | } | |
3645 | ||
3646 | val = hppa_field_adjust (value, addend, r_field); | |
3647 | ||
3648 | switch (r_type) | |
3649 | { | |
3650 | case R_PARISC_PCREL12F: | |
3651 | case R_PARISC_PCREL17C: | |
3652 | case R_PARISC_PCREL17F: | |
3653 | case R_PARISC_PCREL17R: | |
3654 | case R_PARISC_PCREL22F: | |
3655 | case R_PARISC_DIR17F: | |
3656 | case R_PARISC_DIR17R: | |
3657 | /* This is a branch. Divide the offset by four. | |
3658 | Note that we need to decide whether it's a branch or | |
3659 | otherwise by inspecting the reloc. Inspecting insn won't | |
3660 | work as insn might be from a .word directive. */ | |
3661 | val >>= 2; | |
3662 | break; | |
3663 | ||
3664 | default: | |
3665 | break; | |
3666 | } | |
3667 | ||
3668 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3669 | ||
3670 | /* Update the instruction word. */ | |
74d1c347 | 3671 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3672 | return bfd_reloc_ok; |
3673 | } | |
3674 | ||
30667bf3 AM |
3675 | /* Relocate an HPPA ELF section. */ |
3676 | ||
3677 | static boolean | |
3678 | elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section, | |
3679 | contents, relocs, local_syms, local_sections) | |
3680 | bfd *output_bfd; | |
3681 | struct bfd_link_info *info; | |
3682 | bfd *input_bfd; | |
3683 | asection *input_section; | |
3684 | bfd_byte *contents; | |
3685 | Elf_Internal_Rela *relocs; | |
3686 | Elf_Internal_Sym *local_syms; | |
3687 | asection **local_sections; | |
3688 | { | |
30667bf3 | 3689 | bfd_vma *local_got_offsets; |
83c81bfe | 3690 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3691 | Elf_Internal_Shdr *symtab_hdr; |
3692 | Elf_Internal_Rela *rel; | |
3693 | Elf_Internal_Rela *relend; | |
30667bf3 AM |
3694 | |
3695 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3696 | ||
83c81bfe | 3697 | htab = hppa_link_hash_table (info); |
74d1c347 | 3698 | local_got_offsets = elf_local_got_offsets (input_bfd); |
30667bf3 AM |
3699 | |
3700 | rel = relocs; | |
3701 | relend = relocs + input_section->reloc_count; | |
3702 | for (; rel < relend; rel++) | |
3703 | { | |
3704 | unsigned int r_type; | |
3705 | reloc_howto_type *howto; | |
3706 | unsigned int r_symndx; | |
3707 | struct elf32_hppa_link_hash_entry *h; | |
3708 | Elf_Internal_Sym *sym; | |
3709 | asection *sym_sec; | |
3710 | bfd_vma relocation; | |
3711 | bfd_reloc_status_type r; | |
3712 | const char *sym_name; | |
74d1c347 | 3713 | boolean plabel; |
f09ebc7d | 3714 | boolean warned_undef; |
30667bf3 AM |
3715 | |
3716 | r_type = ELF32_R_TYPE (rel->r_info); | |
3717 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3718 | { | |
3719 | bfd_set_error (bfd_error_bad_value); | |
3720 | return false; | |
3721 | } | |
3722 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3723 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3724 | continue; | |
3725 | ||
3726 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3727 | ||
3728 | if (info->relocateable) | |
3729 | { | |
3ac8354b | 3730 | /* This is a relocatable link. We don't have to change |
30667bf3 AM |
3731 | anything, unless the reloc is against a section symbol, |
3732 | in which case we have to adjust according to where the | |
3733 | section symbol winds up in the output section. */ | |
3734 | if (r_symndx < symtab_hdr->sh_info) | |
3735 | { | |
3736 | sym = local_syms + r_symndx; | |
3737 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3738 | { | |
3739 | sym_sec = local_sections[r_symndx]; | |
3740 | rel->r_addend += sym_sec->output_offset; | |
3741 | } | |
3742 | } | |
3743 | continue; | |
3744 | } | |
3745 | ||
3746 | /* This is a final link. */ | |
3747 | h = NULL; | |
3748 | sym = NULL; | |
3749 | sym_sec = NULL; | |
f09ebc7d | 3750 | warned_undef = false; |
30667bf3 AM |
3751 | if (r_symndx < symtab_hdr->sh_info) |
3752 | { | |
3753 | /* This is a local symbol, h defaults to NULL. */ | |
3754 | sym = local_syms + r_symndx; | |
3755 | sym_sec = local_sections[r_symndx]; | |
f8df10f4 | 3756 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sym_sec, rel); |
30667bf3 AM |
3757 | } |
3758 | else | |
3759 | { | |
3760 | int indx; | |
3761 | ||
3762 | /* It's a global; Find its entry in the link hash. */ | |
3763 | indx = r_symndx - symtab_hdr->sh_info; | |
3764 | h = ((struct elf32_hppa_link_hash_entry *) | |
3765 | elf_sym_hashes (input_bfd)[indx]); | |
3766 | while (h->elf.root.type == bfd_link_hash_indirect | |
3767 | || h->elf.root.type == bfd_link_hash_warning) | |
3768 | h = (struct elf32_hppa_link_hash_entry *) h->elf.root.u.i.link; | |
3769 | ||
3770 | relocation = 0; | |
3771 | if (h->elf.root.type == bfd_link_hash_defined | |
3772 | || h->elf.root.type == bfd_link_hash_defweak) | |
3773 | { | |
3774 | sym_sec = h->elf.root.u.def.section; | |
3775 | /* If sym_sec->output_section is NULL, then it's a | |
3776 | symbol defined in a shared library. */ | |
3777 | if (sym_sec->output_section != NULL) | |
3778 | relocation = (h->elf.root.u.def.value | |
3779 | + sym_sec->output_offset | |
3780 | + sym_sec->output_section->vma); | |
3781 | } | |
3782 | else if (h->elf.root.type == bfd_link_hash_undefweak) | |
3783 | ; | |
3784 | else if (info->shared && !info->no_undefined | |
49e9d0d3 AM |
3785 | && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
3786 | && h->elf.type != STT_PARISC_MILLI) | |
30667bf3 | 3787 | { |
671bae9c | 3788 | if (info->symbolic && !info->allow_shlib_undefined) |
f09ebc7d AM |
3789 | { |
3790 | if (!((*info->callbacks->undefined_symbol) | |
3791 | (info, h->elf.root.root.string, input_bfd, | |
3792 | input_section, rel->r_offset, false))) | |
3793 | return false; | |
3794 | warned_undef = true; | |
3795 | } | |
30667bf3 AM |
3796 | } |
3797 | else | |
3798 | { | |
3799 | if (!((*info->callbacks->undefined_symbol) | |
3800 | (info, h->elf.root.root.string, input_bfd, | |
3801 | input_section, rel->r_offset, true))) | |
3802 | return false; | |
f09ebc7d | 3803 | warned_undef = true; |
30667bf3 AM |
3804 | } |
3805 | } | |
3806 | ||
3807 | /* Do any required modifications to the relocation value, and | |
25f72752 AM |
3808 | determine what types of dynamic info we need to output, if |
3809 | any. */ | |
74d1c347 | 3810 | plabel = 0; |
30667bf3 AM |
3811 | switch (r_type) |
3812 | { | |
3813 | case R_PARISC_DLTIND14F: | |
3814 | case R_PARISC_DLTIND14R: | |
3815 | case R_PARISC_DLTIND21L: | |
ce757d15 AM |
3816 | { |
3817 | bfd_vma off; | |
3818 | boolean do_got = 0; | |
3819 | ||
3820 | /* Relocation is to the entry for this symbol in the | |
3821 | global offset table. */ | |
3822 | if (h != NULL) | |
3823 | { | |
3824 | boolean dyn; | |
3825 | ||
3826 | off = h->elf.got.offset; | |
3827 | dyn = htab->elf.dynamic_sections_created; | |
3828 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf)) | |
3829 | { | |
3830 | /* If we aren't going to call finish_dynamic_symbol, | |
3831 | then we need to handle initialisation of the .got | |
3832 | entry and create needed relocs here. Since the | |
3833 | offset must always be a multiple of 4, we use the | |
3834 | least significant bit to record whether we have | |
3835 | initialised it already. */ | |
3836 | if ((off & 1) != 0) | |
3837 | off &= ~1; | |
3838 | else | |
3839 | { | |
3840 | h->elf.got.offset |= 1; | |
3841 | do_got = 1; | |
3842 | } | |
3843 | } | |
3844 | } | |
3845 | else | |
3846 | { | |
3847 | /* Local symbol case. */ | |
3848 | if (local_got_offsets == NULL) | |
3849 | abort (); | |
3850 | ||
3851 | off = local_got_offsets[r_symndx]; | |
3852 | ||
3853 | /* The offset must always be a multiple of 4. We use | |
3854 | the least significant bit to record whether we have | |
3855 | already generated the necessary reloc. */ | |
3856 | if ((off & 1) != 0) | |
3857 | off &= ~1; | |
3858 | else | |
3859 | { | |
3860 | local_got_offsets[r_symndx] |= 1; | |
3861 | do_got = 1; | |
3862 | } | |
3863 | } | |
68fb2e56 | 3864 | |
ce757d15 AM |
3865 | if (do_got) |
3866 | { | |
3867 | if (info->shared) | |
3868 | { | |
3869 | /* Output a dynamic relocation for this GOT entry. | |
3870 | In this case it is relative to the base of the | |
3871 | object because the symbol index is zero. */ | |
3872 | Elf_Internal_Rela outrel; | |
3873 | asection *srelgot = htab->srelgot; | |
3874 | Elf32_External_Rela *loc; | |
3875 | ||
3876 | outrel.r_offset = (off | |
3877 | + htab->sgot->output_offset | |
3878 | + htab->sgot->output_section->vma); | |
3879 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); | |
3880 | outrel.r_addend = relocation; | |
3881 | loc = (Elf32_External_Rela *) srelgot->contents; | |
3882 | loc += srelgot->reloc_count++; | |
3883 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3884 | } | |
3885 | else | |
30667bf3 | 3886 | bfd_put_32 (output_bfd, relocation, |
83c81bfe | 3887 | htab->sgot->contents + off); |
ce757d15 | 3888 | } |
30667bf3 | 3889 | |
ce757d15 AM |
3890 | if (off >= (bfd_vma) -2) |
3891 | abort (); | |
30667bf3 | 3892 | |
ce757d15 AM |
3893 | /* Add the base of the GOT to the relocation value. */ |
3894 | relocation = (off | |
3895 | + htab->sgot->output_offset | |
3896 | + htab->sgot->output_section->vma); | |
3897 | } | |
30667bf3 | 3898 | break; |
252b5132 | 3899 | |
c46b7515 AM |
3900 | case R_PARISC_SEGREL32: |
3901 | /* If this is the first SEGREL relocation, then initialize | |
3902 | the segment base values. */ | |
83c81bfe AM |
3903 | if (htab->text_segment_base == (bfd_vma) -1) |
3904 | bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); | |
c46b7515 AM |
3905 | break; |
3906 | ||
30667bf3 AM |
3907 | case R_PARISC_PLABEL14R: |
3908 | case R_PARISC_PLABEL21L: | |
3909 | case R_PARISC_PLABEL32: | |
ebe50bae | 3910 | if (htab->elf.dynamic_sections_created) |
252b5132 | 3911 | { |
ce757d15 AM |
3912 | bfd_vma off; |
3913 | boolean do_plt = 0; | |
3914 | ||
74d1c347 AM |
3915 | /* If we have a global symbol with a PLT slot, then |
3916 | redirect this relocation to it. */ | |
3917 | if (h != NULL) | |
3918 | { | |
3919 | off = h->elf.plt.offset; | |
4dc86686 | 3920 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, &h->elf)) |
8dea1268 AM |
3921 | { |
3922 | /* In a non-shared link, adjust_dynamic_symbols | |
3923 | isn't called for symbols forced local. We | |
dc810e39 | 3924 | need to write out the plt entry here. */ |
8dea1268 AM |
3925 | if ((off & 1) != 0) |
3926 | off &= ~1; | |
3927 | else | |
3928 | { | |
8dea1268 | 3929 | h->elf.plt.offset |= 1; |
ce757d15 | 3930 | do_plt = 1; |
8dea1268 AM |
3931 | } |
3932 | } | |
74d1c347 AM |
3933 | } |
3934 | else | |
3935 | { | |
68fb2e56 AM |
3936 | bfd_vma *local_plt_offsets; |
3937 | ||
3938 | if (local_got_offsets == NULL) | |
3939 | abort (); | |
74d1c347 | 3940 | |
68fb2e56 AM |
3941 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3942 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3943 | |
3944 | /* As for the local .got entry case, we use the last | |
3945 | bit to record whether we've already initialised | |
3946 | this local .plt entry. */ | |
3947 | if ((off & 1) != 0) | |
3948 | off &= ~1; | |
ce757d15 AM |
3949 | else |
3950 | { | |
3951 | local_plt_offsets[r_symndx] |= 1; | |
3952 | do_plt = 1; | |
3953 | } | |
3954 | } | |
3955 | ||
3956 | if (do_plt) | |
3957 | { | |
3958 | if (info->shared) | |
3959 | { | |
3960 | /* Output a dynamic IPLT relocation for this | |
3961 | PLT entry. */ | |
3962 | Elf_Internal_Rela outrel; | |
3963 | asection *srelplt = htab->srelplt; | |
3964 | Elf32_External_Rela *loc; | |
3965 | ||
3966 | outrel.r_offset = (off | |
3967 | + htab->splt->output_offset | |
3968 | + htab->splt->output_section->vma); | |
3969 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3970 | outrel.r_addend = relocation; | |
3971 | loc = (Elf32_External_Rela *) srelplt->contents; | |
3972 | loc += srelplt->reloc_count++; | |
3973 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3974 | } | |
74d1c347 AM |
3975 | else |
3976 | { | |
3977 | bfd_put_32 (output_bfd, | |
3978 | relocation, | |
83c81bfe | 3979 | htab->splt->contents + off); |
74d1c347 | 3980 | bfd_put_32 (output_bfd, |
83c81bfe AM |
3981 | elf_gp (htab->splt->output_section->owner), |
3982 | htab->splt->contents + off + 4); | |
74d1c347 AM |
3983 | } |
3984 | } | |
3985 | ||
68fb2e56 | 3986 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3987 | abort (); |
74d1c347 AM |
3988 | |
3989 | /* PLABELs contain function pointers. Relocation is to | |
3990 | the entry for the function in the .plt. The magic +2 | |
3991 | offset signals to $$dyncall that the function pointer | |
3992 | is in the .plt and thus has a gp pointer too. | |
3993 | Exception: Undefined PLABELs should have a value of | |
3994 | zero. */ | |
3995 | if (h == NULL | |
3996 | || (h->elf.root.type != bfd_link_hash_undefweak | |
3997 | && h->elf.root.type != bfd_link_hash_undefined)) | |
3998 | { | |
3999 | relocation = (off | |
83c81bfe AM |
4000 | + htab->splt->output_offset |
4001 | + htab->splt->output_section->vma | |
74d1c347 AM |
4002 | + 2); |
4003 | } | |
4004 | plabel = 1; | |
30667bf3 AM |
4005 | } |
4006 | /* Fall through and possibly emit a dynamic relocation. */ | |
4007 | ||
4008 | case R_PARISC_DIR17F: | |
4009 | case R_PARISC_DIR17R: | |
47d89dba | 4010 | case R_PARISC_DIR14F: |
30667bf3 AM |
4011 | case R_PARISC_DIR14R: |
4012 | case R_PARISC_DIR21L: | |
4013 | case R_PARISC_DPREL14F: | |
4014 | case R_PARISC_DPREL14R: | |
4015 | case R_PARISC_DPREL21L: | |
4016 | case R_PARISC_DIR32: | |
ec338859 AM |
4017 | /* r_symndx will be zero only for relocs against symbols |
4018 | from removed linkonce sections, or sections discarded by | |
4019 | a linker script. */ | |
4020 | if (r_symndx == 0 | |
4021 | || (input_section->flags & SEC_ALLOC) == 0) | |
4022 | break; | |
4023 | ||
30667bf3 | 4024 | /* The reloc types handled here and this conditional |
56882138 | 4025 | expression must match the code in ..check_relocs and |
ec338859 | 4026 | allocate_dynrelocs. ie. We need exactly the same condition |
56882138 AM |
4027 | as in ..check_relocs, with some extra conditions (dynindx |
4028 | test in this case) to cater for relocs removed by | |
ec338859 | 4029 | allocate_dynrelocs. If you squint, the non-shared test |
56882138 AM |
4030 | here does indeed match the one in ..check_relocs, the |
4031 | difference being that here we test DEF_DYNAMIC as well as | |
4032 | !DEF_REGULAR. All common syms end up with !DEF_REGULAR, | |
4033 | which is why we can't use just that test here. | |
4034 | Conversely, DEF_DYNAMIC can't be used in check_relocs as | |
4035 | there all files have not been loaded. */ | |
446f2863 | 4036 | if ((info->shared |
446f2863 AM |
4037 | && (IS_ABSOLUTE_RELOC (r_type) |
4038 | || (h != NULL | |
4039 | && h->elf.dynindx != -1 | |
4040 | && (!info->symbolic | |
4041 | || (h->elf.elf_link_hash_flags | |
4042 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
4043 | || (!info->shared | |
446f2863 AM |
4044 | && h != NULL |
4045 | && h->elf.dynindx != -1 | |
4046 | && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
56882138 AM |
4047 | && (((h->elf.elf_link_hash_flags |
4048 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
4049 | && (h->elf.elf_link_hash_flags | |
4050 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
446f2863 AM |
4051 | || h->elf.root.type == bfd_link_hash_undefweak |
4052 | || h->elf.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
4053 | { |
4054 | Elf_Internal_Rela outrel; | |
4055 | boolean skip; | |
98ceb8ce AM |
4056 | asection *sreloc; |
4057 | Elf32_External_Rela *loc; | |
252b5132 | 4058 | |
30667bf3 AM |
4059 | /* When generating a shared object, these relocations |
4060 | are copied into the output file to be resolved at run | |
4061 | time. */ | |
252b5132 | 4062 | |
30667bf3 | 4063 | outrel.r_addend = rel->r_addend; |
c629eae0 JJ |
4064 | outrel.r_offset = |
4065 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
4066 | rel->r_offset); | |
0bb2d96a JJ |
4067 | skip = (outrel.r_offset == (bfd_vma) -1 |
4068 | || outrel.r_offset == (bfd_vma) -2); | |
30667bf3 AM |
4069 | outrel.r_offset += (input_section->output_offset |
4070 | + input_section->output_section->vma); | |
4071 | ||
4072 | if (skip) | |
252b5132 | 4073 | { |
30667bf3 | 4074 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 4075 | } |
74d1c347 AM |
4076 | else if (h != NULL |
4077 | && h->elf.dynindx != -1 | |
4078 | && (plabel | |
446f2863 AM |
4079 | || !IS_ABSOLUTE_RELOC (r_type) |
4080 | || !info->shared | |
74d1c347 | 4081 | || !info->symbolic |
30667bf3 AM |
4082 | || (h->elf.elf_link_hash_flags |
4083 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
252b5132 | 4084 | { |
30667bf3 AM |
4085 | outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type); |
4086 | } | |
4087 | else /* It's a local symbol, or one marked to become local. */ | |
4088 | { | |
4089 | int indx = 0; | |
edd21aca | 4090 | |
30667bf3 AM |
4091 | /* Add the absolute offset of the symbol. */ |
4092 | outrel.r_addend += relocation; | |
edd21aca | 4093 | |
74d1c347 AM |
4094 | /* Global plabels need to be processed by the |
4095 | dynamic linker so that functions have at most one | |
4096 | fptr. For this reason, we need to differentiate | |
4097 | between global and local plabels, which we do by | |
4098 | providing the function symbol for a global plabel | |
4099 | reloc, and no symbol for local plabels. */ | |
4100 | if (! plabel | |
4101 | && sym_sec != NULL | |
30667bf3 AM |
4102 | && sym_sec->output_section != NULL |
4103 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 4104 | { |
30667bf3 AM |
4105 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
4106 | /* We are turning this relocation into one | |
4107 | against a section symbol, so subtract out the | |
4108 | output section's address but not the offset | |
4109 | of the input section in the output section. */ | |
4110 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 4111 | } |
252b5132 | 4112 | |
30667bf3 AM |
4113 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
4114 | } | |
68fb2e56 AM |
4115 | #if 0 |
4116 | /* EH info can cause unaligned DIR32 relocs. | |
4117 | Tweak the reloc type for the dynamic linker. */ | |
4118 | if (r_type == R_PARISC_DIR32 && (outrel.r_offset & 3) != 0) | |
4119 | outrel.r_info = ELF32_R_INFO (ELF32_R_SYM (outrel.r_info), | |
4120 | R_PARISC_DIR32U); | |
4121 | #endif | |
98ceb8ce AM |
4122 | sreloc = elf_section_data (input_section)->sreloc; |
4123 | if (sreloc == NULL) | |
4124 | abort (); | |
4125 | ||
3ac8354b AM |
4126 | loc = (Elf32_External_Rela *) sreloc->contents; |
4127 | loc += sreloc->reloc_count++; | |
98ceb8ce | 4128 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
30667bf3 AM |
4129 | } |
4130 | break; | |
edd21aca | 4131 | |
30667bf3 AM |
4132 | default: |
4133 | break; | |
4134 | } | |
252b5132 | 4135 | |
30667bf3 | 4136 | r = final_link_relocate (input_section, contents, rel, relocation, |
83c81bfe | 4137 | htab, sym_sec, h); |
252b5132 | 4138 | |
30667bf3 AM |
4139 | if (r == bfd_reloc_ok) |
4140 | continue; | |
252b5132 | 4141 | |
30667bf3 AM |
4142 | if (h != NULL) |
4143 | sym_name = h->elf.root.root.string; | |
4144 | else | |
4145 | { | |
4146 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
4147 | symtab_hdr->sh_link, | |
4148 | sym->st_name); | |
4149 | if (sym_name == NULL) | |
4150 | return false; | |
4151 | if (*sym_name == '\0') | |
4152 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
4153 | } | |
edd21aca | 4154 | |
30667bf3 | 4155 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 4156 | |
30667bf3 AM |
4157 | if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported) |
4158 | { | |
f09ebc7d AM |
4159 | if (r == bfd_reloc_notsupported || !warned_undef) |
4160 | { | |
4161 | (*_bfd_error_handler) | |
4162 | (_("%s(%s+0x%lx): cannot handle %s for %s"), | |
4163 | bfd_archive_filename (input_bfd), | |
4164 | input_section->name, | |
4165 | (long) rel->r_offset, | |
4166 | howto->name, | |
4167 | sym_name); | |
4168 | bfd_set_error (bfd_error_bad_value); | |
4169 | return false; | |
4170 | } | |
30667bf3 AM |
4171 | } |
4172 | else | |
4173 | { | |
4174 | if (!((*info->callbacks->reloc_overflow) | |
4175 | (info, sym_name, howto->name, (bfd_vma) 0, | |
4176 | input_bfd, input_section, rel->r_offset))) | |
4177 | return false; | |
4178 | } | |
4179 | } | |
edd21aca | 4180 | |
30667bf3 AM |
4181 | return true; |
4182 | } | |
252b5132 | 4183 | |
30667bf3 AM |
4184 | /* Finish up dynamic symbol handling. We set the contents of various |
4185 | dynamic sections here. */ | |
252b5132 | 4186 | |
30667bf3 AM |
4187 | static boolean |
4188 | elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym) | |
4189 | bfd *output_bfd; | |
4190 | struct bfd_link_info *info; | |
4191 | struct elf_link_hash_entry *h; | |
4192 | Elf_Internal_Sym *sym; | |
4193 | { | |
83c81bfe | 4194 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 4195 | |
83c81bfe | 4196 | htab = hppa_link_hash_table (info); |
30667bf3 | 4197 | |
30667bf3 AM |
4198 | if (h->plt.offset != (bfd_vma) -1) |
4199 | { | |
4200 | bfd_vma value; | |
30667bf3 | 4201 | |
8dea1268 AM |
4202 | if (h->plt.offset & 1) |
4203 | abort (); | |
4204 | ||
30667bf3 AM |
4205 | /* This symbol has an entry in the procedure linkage table. Set |
4206 | it up. | |
4207 | ||
4208 | The format of a plt entry is | |
74d1c347 AM |
4209 | <funcaddr> |
4210 | <__gp> | |
47d89dba | 4211 | */ |
30667bf3 AM |
4212 | value = 0; |
4213 | if (h->root.type == bfd_link_hash_defined | |
4214 | || h->root.type == bfd_link_hash_defweak) | |
4215 | { | |
4216 | value = h->root.u.def.value; | |
4217 | if (h->root.u.def.section->output_section != NULL) | |
4218 | value += (h->root.u.def.section->output_offset | |
4219 | + h->root.u.def.section->output_section->vma); | |
252b5132 | 4220 | } |
edd21aca | 4221 | |
74d1c347 | 4222 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call) |
30667bf3 | 4223 | { |
47d89dba | 4224 | Elf_Internal_Rela rel; |
3ac8354b | 4225 | Elf32_External_Rela *loc; |
47d89dba | 4226 | |
30667bf3 AM |
4227 | /* Create a dynamic IPLT relocation for this entry. */ |
4228 | rel.r_offset = (h->plt.offset | |
83c81bfe AM |
4229 | + htab->splt->output_offset |
4230 | + htab->splt->output_section->vma); | |
ce757d15 | 4231 | if (h->dynindx != -1) |
74d1c347 AM |
4232 | { |
4233 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT); | |
4234 | rel.r_addend = 0; | |
4235 | } | |
4236 | else | |
4237 | { | |
4238 | /* This symbol has been marked to become local, and is | |
4239 | used by a plabel so must be kept in the .plt. */ | |
4240 | rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
4241 | rel.r_addend = value; | |
4242 | } | |
30667bf3 | 4243 | |
3ac8354b AM |
4244 | loc = (Elf32_External_Rela *) htab->srelplt->contents; |
4245 | loc += htab->srelplt->reloc_count++; | |
83c81bfe | 4246 | bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, |
3ac8354b | 4247 | &rel, loc); |
30667bf3 | 4248 | } |
ce757d15 | 4249 | else |
47d89dba | 4250 | { |
ce757d15 AM |
4251 | bfd_put_32 (htab->splt->owner, |
4252 | value, | |
4253 | htab->splt->contents + h->plt.offset); | |
4254 | bfd_put_32 (htab->splt->owner, | |
4255 | elf_gp (htab->splt->output_section->owner), | |
4256 | htab->splt->contents + h->plt.offset + 4); | |
47d89dba AM |
4257 | } |
4258 | ||
30667bf3 AM |
4259 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
4260 | { | |
4261 | /* Mark the symbol as undefined, rather than as defined in | |
4262 | the .plt section. Leave the value alone. */ | |
4263 | sym->st_shndx = SHN_UNDEF; | |
4264 | } | |
4265 | } | |
edd21aca | 4266 | |
30667bf3 AM |
4267 | if (h->got.offset != (bfd_vma) -1) |
4268 | { | |
4269 | Elf_Internal_Rela rel; | |
3ac8354b | 4270 | Elf32_External_Rela *loc; |
30667bf3 AM |
4271 | |
4272 | /* This symbol has an entry in the global offset table. Set it | |
4273 | up. */ | |
4274 | ||
4275 | rel.r_offset = ((h->got.offset &~ (bfd_vma) 1) | |
83c81bfe AM |
4276 | + htab->sgot->output_offset |
4277 | + htab->sgot->output_section->vma); | |
30667bf3 | 4278 | |
4dc86686 AM |
4279 | /* If this is a -Bsymbolic link and the symbol is defined |
4280 | locally or was forced to be local because of a version file, | |
4281 | we just want to emit a RELATIVE reloc. The entry in the | |
4282 | global offset table will already have been initialized in the | |
4283 | relocate_section function. */ | |
4284 | if (info->shared | |
4285 | && (info->symbolic || h->dynindx == -1) | |
4286 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
30667bf3 | 4287 | { |
74d1c347 | 4288 | rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
4289 | rel.r_addend = (h->root.u.def.value |
4290 | + h->root.u.def.section->output_offset | |
4291 | + h->root.u.def.section->output_section->vma); | |
4292 | } | |
4293 | else | |
4294 | { | |
49e9d0d3 AM |
4295 | if ((h->got.offset & 1) != 0) |
4296 | abort (); | |
30667bf3 | 4297 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
83c81bfe | 4298 | htab->sgot->contents + h->got.offset); |
30667bf3 AM |
4299 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32); |
4300 | rel.r_addend = 0; | |
4301 | } | |
edd21aca | 4302 | |
3ac8354b AM |
4303 | loc = (Elf32_External_Rela *) htab->srelgot->contents; |
4304 | loc += htab->srelgot->reloc_count++; | |
4305 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 | 4306 | } |
edd21aca | 4307 | |
30667bf3 AM |
4308 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
4309 | { | |
4310 | asection *s; | |
4311 | Elf_Internal_Rela rel; | |
3ac8354b | 4312 | Elf32_External_Rela *loc; |
30667bf3 AM |
4313 | |
4314 | /* This symbol needs a copy reloc. Set it up. */ | |
4315 | ||
49e9d0d3 AM |
4316 | if (! (h->dynindx != -1 |
4317 | && (h->root.type == bfd_link_hash_defined | |
4318 | || h->root.type == bfd_link_hash_defweak))) | |
4319 | abort (); | |
30667bf3 | 4320 | |
83c81bfe | 4321 | s = htab->srelbss; |
30667bf3 AM |
4322 | |
4323 | rel.r_offset = (h->root.u.def.value | |
4324 | + h->root.u.def.section->output_offset | |
4325 | + h->root.u.def.section->output_section->vma); | |
4326 | rel.r_addend = 0; | |
4327 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY); | |
3ac8354b AM |
4328 | loc = (Elf32_External_Rela *) s->contents + s->reloc_count++; |
4329 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); | |
30667bf3 AM |
4330 | } |
4331 | ||
4332 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
4333 | if (h->root.root.string[0] == '_' | |
4334 | && (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4335 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)) | |
4336 | { | |
4337 | sym->st_shndx = SHN_ABS; | |
4338 | } | |
4339 | ||
4340 | return true; | |
4341 | } | |
4342 | ||
98ceb8ce AM |
4343 | /* Used to decide how to sort relocs in an optimal manner for the |
4344 | dynamic linker, before writing them out. */ | |
4345 | ||
4346 | static enum elf_reloc_type_class | |
4347 | elf32_hppa_reloc_type_class (rela) | |
4348 | const Elf_Internal_Rela *rela; | |
4349 | { | |
4350 | if (ELF32_R_SYM (rela->r_info) == 0) | |
4351 | return reloc_class_relative; | |
4352 | ||
4353 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4354 | { | |
4355 | case R_PARISC_IPLT: | |
4356 | return reloc_class_plt; | |
4357 | case R_PARISC_COPY: | |
4358 | return reloc_class_copy; | |
4359 | default: | |
4360 | return reloc_class_normal; | |
4361 | } | |
4362 | } | |
4363 | ||
30667bf3 AM |
4364 | /* Finish up the dynamic sections. */ |
4365 | ||
4366 | static boolean | |
4367 | elf32_hppa_finish_dynamic_sections (output_bfd, info) | |
4368 | bfd *output_bfd; | |
4369 | struct bfd_link_info *info; | |
4370 | { | |
4371 | bfd *dynobj; | |
83c81bfe | 4372 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
4373 | asection *sdyn; |
4374 | ||
83c81bfe | 4375 | htab = hppa_link_hash_table (info); |
ebe50bae | 4376 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
4377 | |
4378 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4379 | ||
ebe50bae | 4380 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
4381 | { |
4382 | Elf32_External_Dyn *dyncon, *dynconend; | |
4383 | ||
49e9d0d3 AM |
4384 | if (sdyn == NULL) |
4385 | abort (); | |
30667bf3 AM |
4386 | |
4387 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
4388 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4389 | for (; dyncon < dynconend; dyncon++) | |
edd21aca | 4390 | { |
30667bf3 AM |
4391 | Elf_Internal_Dyn dyn; |
4392 | asection *s; | |
4393 | ||
4394 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4395 | ||
4396 | switch (dyn.d_tag) | |
4397 | { | |
4398 | default: | |
3ac8354b | 4399 | continue; |
30667bf3 AM |
4400 | |
4401 | case DT_PLTGOT: | |
4402 | /* Use PLTGOT to set the GOT register. */ | |
4403 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
30667bf3 AM |
4404 | break; |
4405 | ||
4406 | case DT_JMPREL: | |
83c81bfe | 4407 | s = htab->srelplt; |
30667bf3 | 4408 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
30667bf3 AM |
4409 | break; |
4410 | ||
4411 | case DT_PLTRELSZ: | |
83c81bfe | 4412 | s = htab->srelplt; |
30667bf3 AM |
4413 | if (s->_cooked_size != 0) |
4414 | dyn.d_un.d_val = s->_cooked_size; | |
4415 | else | |
4416 | dyn.d_un.d_val = s->_raw_size; | |
30667bf3 | 4417 | break; |
4e12ff7f AM |
4418 | |
4419 | case DT_RELASZ: | |
4420 | /* Don't count procedure linkage table relocs in the | |
4421 | overall reloc count. */ | |
4422 | if (htab->srelplt != NULL) | |
4423 | { | |
4424 | s = htab->srelplt->output_section; | |
4425 | if (s->_cooked_size != 0) | |
4426 | dyn.d_un.d_val -= s->_cooked_size; | |
4427 | else | |
4428 | dyn.d_un.d_val -= s->_raw_size; | |
4429 | } | |
4430 | break; | |
30667bf3 | 4431 | } |
3ac8354b AM |
4432 | |
4433 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
edd21aca | 4434 | } |
252b5132 | 4435 | } |
edd21aca | 4436 | |
83c81bfe | 4437 | if (htab->sgot != NULL && htab->sgot->_raw_size != 0) |
30667bf3 | 4438 | { |
74d1c347 AM |
4439 | /* Fill in the first entry in the global offset table. |
4440 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 AM |
4441 | bfd_put_32 (output_bfd, |
4442 | (sdyn != NULL | |
4443 | ? sdyn->output_section->vma + sdyn->output_offset | |
4444 | : (bfd_vma) 0), | |
83c81bfe | 4445 | htab->sgot->contents); |
30667bf3 | 4446 | |
74d1c347 | 4447 | /* The second entry is reserved for use by the dynamic linker. */ |
83c81bfe | 4448 | memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4449 | |
30667bf3 | 4450 | /* Set .got entry size. */ |
83c81bfe | 4451 | elf_section_data (htab->sgot->output_section) |
74d1c347 | 4452 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; |
30667bf3 AM |
4453 | } |
4454 | ||
83c81bfe | 4455 | if (htab->splt != NULL && htab->splt->_raw_size != 0) |
47d89dba AM |
4456 | { |
4457 | /* Set plt entry size. */ | |
83c81bfe | 4458 | elf_section_data (htab->splt->output_section) |
47d89dba AM |
4459 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; |
4460 | ||
83c81bfe | 4461 | if (htab->need_plt_stub) |
47d89dba AM |
4462 | { |
4463 | /* Set up the .plt stub. */ | |
83c81bfe AM |
4464 | memcpy (htab->splt->contents |
4465 | + htab->splt->_raw_size - sizeof (plt_stub), | |
47d89dba AM |
4466 | plt_stub, sizeof (plt_stub)); |
4467 | ||
83c81bfe AM |
4468 | if ((htab->splt->output_offset |
4469 | + htab->splt->output_section->vma | |
4470 | + htab->splt->_raw_size) | |
4471 | != (htab->sgot->output_offset | |
4472 | + htab->sgot->output_section->vma)) | |
47d89dba AM |
4473 | { |
4474 | (*_bfd_error_handler) | |
4475 | (_(".got section not immediately after .plt section")); | |
4476 | return false; | |
4477 | } | |
4478 | } | |
4479 | } | |
30667bf3 | 4480 | |
252b5132 | 4481 | return true; |
30667bf3 | 4482 | } |
252b5132 | 4483 | |
d952f17a AM |
4484 | /* Tweak the OSABI field of the elf header. */ |
4485 | ||
4486 | static void | |
4487 | elf32_hppa_post_process_headers (abfd, link_info) | |
4488 | bfd *abfd; | |
4489 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
4490 | { | |
4491 | Elf_Internal_Ehdr * i_ehdrp; | |
4492 | ||
4493 | i_ehdrp = elf_elfheader (abfd); | |
4494 | ||
4495 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
4496 | { | |
4497 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
4498 | } | |
4499 | else | |
4500 | { | |
4501 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; | |
4502 | } | |
4503 | } | |
4504 | ||
30667bf3 AM |
4505 | /* Called when writing out an object file to decide the type of a |
4506 | symbol. */ | |
4507 | static int | |
4508 | elf32_hppa_elf_get_symbol_type (elf_sym, type) | |
4509 | Elf_Internal_Sym *elf_sym; | |
4510 | int type; | |
4511 | { | |
4512 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4513 | return STT_PARISC_MILLI; | |
4514 | else | |
4515 | return type; | |
252b5132 RH |
4516 | } |
4517 | ||
4518 | /* Misc BFD support code. */ | |
30667bf3 AM |
4519 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4520 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4521 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4522 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4523 | |
252b5132 | 4524 | /* Stuff for the BFD linker. */ |
c46b7515 | 4525 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 | 4526 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
e2d34d7d | 4527 | #define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free |
30667bf3 AM |
4528 | #define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook |
4529 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol | |
ebe50bae | 4530 | #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol |
30667bf3 AM |
4531 | #define elf_backend_check_relocs elf32_hppa_check_relocs |
4532 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4533 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4534 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4535 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4536 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4537 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4538 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4539 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4540 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
4541 | #define elf_backend_object_p elf32_hppa_object_p | |
4542 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d952f17a | 4543 | #define elf_backend_post_process_headers elf32_hppa_post_process_headers |
30667bf3 | 4544 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
98ceb8ce | 4545 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
30667bf3 AM |
4546 | |
4547 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4548 | #define elf_backend_can_refcount 1 |
30667bf3 AM |
4549 | #define elf_backend_plt_alignment 2 |
4550 | #define elf_backend_want_got_plt 0 | |
4551 | #define elf_backend_plt_readonly 0 | |
4552 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4553 | #define elf_backend_got_header_size 8 |
252b5132 RH |
4554 | |
4555 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4556 | #define TARGET_BIG_NAME "elf32-hppa" | |
4557 | #define ELF_ARCH bfd_arch_hppa | |
4558 | #define ELF_MACHINE_CODE EM_PARISC | |
4559 | #define ELF_MAXPAGESIZE 0x1000 | |
4560 | ||
4561 | #include "elf32-target.h" | |
d952f17a AM |
4562 | |
4563 | #undef TARGET_BIG_SYM | |
4564 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec | |
4565 | #undef TARGET_BIG_NAME | |
4566 | #define TARGET_BIG_NAME "elf32-hppa-linux" | |
4567 | ||
4568 | #define INCLUDED_TARGET_FILE 1 | |
4569 | #include "elf32-target.h" |