Commit | Line | Data |
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252b5132 | 1 | /* BFD back-end for HP PA-RISC ELF files. |
7898deda | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001 |
252b5132 RH |
3 | Free Software Foundation, Inc. |
4 | ||
30667bf3 | 5 | Original code by |
252b5132 RH |
6 | Center for Software Science |
7 | Department of Computer Science | |
8 | University of Utah | |
30667bf3 | 9 | Largely rewritten by Alan Modra <alan@linuxcare.com.au> |
252b5132 RH |
10 | |
11 | This file is part of BFD, the Binary File Descriptor library. | |
12 | ||
13 | This program is free software; you can redistribute it and/or modify | |
14 | it under the terms of the GNU General Public License as published by | |
15 | the Free Software Foundation; either version 2 of the License, or | |
16 | (at your option) any later version. | |
17 | ||
18 | This program is distributed in the hope that it will be useful, | |
19 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | GNU General Public License for more details. | |
22 | ||
23 | You should have received a copy of the GNU General Public License | |
24 | along with this program; if not, write to the Free Software | |
25 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
26 | ||
27 | #include "bfd.h" | |
28 | #include "sysdep.h" | |
252b5132 RH |
29 | #include "libbfd.h" |
30 | #include "elf-bfd.h" | |
9e103c9c JL |
31 | #include "elf/hppa.h" |
32 | #include "libhppa.h" | |
33 | #include "elf32-hppa.h" | |
34 | #define ARCH_SIZE 32 | |
35 | #include "elf-hppa.h" | |
edd21aca | 36 | #include "elf32-hppa.h" |
9e103c9c | 37 | |
74d1c347 AM |
38 | /* In order to gain some understanding of code in this file without |
39 | knowing all the intricate details of the linker, note the | |
40 | following: | |
41 | ||
42 | Functions named elf32_hppa_* are called by external routines, other | |
43 | functions are only called locally. elf32_hppa_* functions appear | |
44 | in this file more or less in the order in which they are called | |
45 | from external routines. eg. elf32_hppa_check_relocs is called | |
46 | early in the link process, elf32_hppa_finish_dynamic_sections is | |
47 | one of the last functions. */ | |
48 | ||
edd21aca | 49 | /* We use two hash tables to hold information for linking PA ELF objects. |
252b5132 RH |
50 | |
51 | The first is the elf32_hppa_link_hash_table which is derived | |
52 | from the standard ELF linker hash table. We use this as a place to | |
53 | attach other hash tables and static information. | |
54 | ||
55 | The second is the stub hash table which is derived from the | |
56 | base BFD hash table. The stub hash table holds the information | |
30667bf3 AM |
57 | necessary to build the linker stubs during a link. |
58 | ||
59 | There are a number of different stubs generated by the linker. | |
60 | ||
61 | Long branch stub: | |
62 | : ldil LR'X,%r1 | |
63 | : be,n RR'X(%sr4,%r1) | |
64 | ||
65 | PIC long branch stub: | |
66 | : b,l .+8,%r1 | |
3ee1d854 AM |
67 | : addil LR'X - ($PIC_pcrel$0 - 4),%r1 |
68 | : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1) | |
30667bf3 AM |
69 | |
70 | Import stub to call shared library routine from normal object file | |
71 | (single sub-space version) | |
3ee1d854 AM |
72 | : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point |
73 | : ldw RR'lt_ptr+ltoff(%r1),%r21 | |
30667bf3 | 74 | : bv %r0(%r21) |
3ee1d854 | 75 | : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. |
30667bf3 AM |
76 | |
77 | Import stub to call shared library routine from shared library | |
78 | (single sub-space version) | |
3ee1d854 AM |
79 | : addil LR'ltoff,%r19 ; get procedure entry point |
80 | : ldw RR'ltoff(%r1),%r21 | |
30667bf3 | 81 | : bv %r0(%r21) |
3ee1d854 | 82 | : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. |
30667bf3 AM |
83 | |
84 | Import stub to call shared library routine from normal object file | |
85 | (multiple sub-space support) | |
3ee1d854 AM |
86 | : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point |
87 | : ldw RR'lt_ptr+ltoff(%r1),%r21 | |
88 | : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. | |
30667bf3 AM |
89 | : ldsid (%r21),%r1 |
90 | : mtsp %r1,%sr0 | |
91 | : be 0(%sr0,%r21) ; branch to target | |
92 | : stw %rp,-24(%sp) ; save rp | |
93 | ||
94 | Import stub to call shared library routine from shared library | |
95 | (multiple sub-space support) | |
3ee1d854 AM |
96 | : addil LR'ltoff,%r19 ; get procedure entry point |
97 | : ldw RR'ltoff(%r1),%r21 | |
98 | : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. | |
30667bf3 AM |
99 | : ldsid (%r21),%r1 |
100 | : mtsp %r1,%sr0 | |
101 | : be 0(%sr0,%r21) ; branch to target | |
102 | : stw %rp,-24(%sp) ; save rp | |
103 | ||
104 | Export stub to return from shared lib routine (multiple sub-space support) | |
105 | One of these is created for each exported procedure in a shared | |
106 | library (and stored in the shared lib). Shared lib routines are | |
107 | called via the first instruction in the export stub so that we can | |
108 | do an inter-space return. Not required for single sub-space. | |
109 | : bl,n X,%rp ; trap the return | |
110 | : nop | |
111 | : ldw -24(%sp),%rp ; restore the original rp | |
112 | : ldsid (%rp),%r1 | |
113 | : mtsp %r1,%sr0 | |
74d1c347 | 114 | : be,n 0(%sr0,%rp) ; inter-space return */ |
30667bf3 AM |
115 | |
116 | #define PLT_ENTRY_SIZE 8 | |
74d1c347 | 117 | #define PLABEL_PLT_ENTRY_SIZE PLT_ENTRY_SIZE |
30667bf3 AM |
118 | #define GOT_ENTRY_SIZE 4 |
119 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
120 | ||
47d89dba AM |
121 | static const bfd_byte plt_stub[] = |
122 | { | |
123 | 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */ | |
124 | 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */ | |
125 | 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */ | |
126 | #define PLT_STUB_ENTRY (3*4) | |
127 | 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */ | |
128 | 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */ | |
129 | 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */ | |
130 | 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */ | |
131 | }; | |
132 | ||
30667bf3 AM |
133 | /* Section name for stubs is the associated section name plus this |
134 | string. */ | |
135 | #define STUB_SUFFIX ".stub" | |
136 | ||
137 | /* Setting the following non-zero makes all long branch stubs | |
138 | generated during a shared link of the PIC variety. This saves on | |
139 | relocs, but costs one extra instruction per stub. */ | |
140 | #ifndef LONG_BRANCH_PIC_IN_SHLIB | |
141 | #define LONG_BRANCH_PIC_IN_SHLIB 1 | |
142 | #endif | |
252b5132 | 143 | |
74d1c347 AM |
144 | /* Set this non-zero to use import stubs instead of long branch stubs |
145 | where a .plt entry exists for the symbol. This is a fairly useless | |
146 | option as import stubs are bigger than PIC long branch stubs. */ | |
147 | #ifndef LONG_BRANCH_VIA_PLT | |
148 | #define LONG_BRANCH_VIA_PLT 0 | |
149 | #endif | |
150 | ||
30667bf3 | 151 | /* We don't need to copy any PC- or GP-relative dynamic relocs into a |
446f2863 AM |
152 | shared object's dynamic section. All the relocs of the limited |
153 | class we are interested in, are absolute. See check_relocs. */ | |
154 | #ifndef IS_ABSOLUTE_RELOC | |
155 | #define IS_ABSOLUTE_RELOC(r_type) 1 | |
30667bf3 AM |
156 | #endif |
157 | ||
30667bf3 AM |
158 | enum elf32_hppa_stub_type { |
159 | hppa_stub_long_branch, | |
160 | hppa_stub_long_branch_shared, | |
161 | hppa_stub_import, | |
162 | hppa_stub_import_shared, | |
163 | hppa_stub_export, | |
164 | hppa_stub_none | |
165 | }; | |
166 | ||
30667bf3 | 167 | struct elf32_hppa_stub_hash_entry { |
252b5132 | 168 | |
edd21aca | 169 | /* Base hash table entry structure. */ |
252b5132 RH |
170 | struct bfd_hash_entry root; |
171 | ||
edd21aca AM |
172 | /* The stub section. */ |
173 | asection *stub_sec; | |
174 | ||
30667bf3 AM |
175 | #if ! LONG_BRANCH_PIC_IN_SHLIB |
176 | /* It's associated reloc section. */ | |
177 | asection *reloc_sec; | |
178 | #endif | |
179 | ||
edd21aca | 180 | /* Offset within stub_sec of the beginning of this stub. */ |
30667bf3 | 181 | bfd_vma stub_offset; |
252b5132 RH |
182 | |
183 | /* Given the symbol's value and its section we can determine its final | |
184 | value when building the stubs (so the stub knows where to jump. */ | |
30667bf3 | 185 | bfd_vma target_value; |
252b5132 | 186 | asection *target_section; |
30667bf3 AM |
187 | |
188 | enum elf32_hppa_stub_type stub_type; | |
189 | ||
190 | /* The symbol table entry, if any, that this was derived from. */ | |
191 | struct elf32_hppa_link_hash_entry *h; | |
192 | ||
25f72752 AM |
193 | /* Where this stub is being called from, or, in the case of combined |
194 | stub sections, the first input section in the group. */ | |
195 | asection *id_sec; | |
252b5132 RH |
196 | }; |
197 | ||
30667bf3 AM |
198 | struct elf32_hppa_link_hash_entry { |
199 | ||
200 | struct elf_link_hash_entry elf; | |
201 | ||
202 | /* A pointer to the most recently used stub hash entry against this | |
203 | symbol. */ | |
204 | struct elf32_hppa_stub_hash_entry *stub_cache; | |
205 | ||
206 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
207 | /* Used to track whether we have allocated space for a long branch | |
208 | stub relocation for this symbol in the given section. */ | |
209 | asection *stub_reloc_sec; | |
210 | #endif | |
211 | ||
30667bf3 AM |
212 | /* Used to count relocations for delayed sizing of relocation |
213 | sections. */ | |
214 | struct elf32_hppa_dyn_reloc_entry { | |
215 | ||
216 | /* Next relocation in the chain. */ | |
217 | struct elf32_hppa_dyn_reloc_entry *next; | |
218 | ||
219 | /* The section in dynobj. */ | |
220 | asection *section; | |
221 | ||
222 | /* Number of relocs copied in this section. */ | |
223 | bfd_size_type count; | |
224 | } *reloc_entries; | |
30667bf3 AM |
225 | |
226 | /* Set during a static link if we detect a function is PIC. */ | |
12cca0d2 AM |
227 | unsigned int maybe_pic_call:1; |
228 | ||
229 | /* Set if the only reason we need a .plt entry is for a non-PIC to | |
230 | PIC function call. */ | |
74d1c347 AM |
231 | unsigned int pic_call:1; |
232 | ||
233 | /* Set if this symbol is used by a plabel reloc. */ | |
234 | unsigned int plabel:1; | |
235 | ||
236 | /* Set if this symbol is an init or fini function and thus should | |
237 | use an absolute reloc. */ | |
238 | unsigned int plt_abs:1; | |
30667bf3 AM |
239 | }; |
240 | ||
30667bf3 AM |
241 | struct elf32_hppa_link_hash_table { |
242 | ||
252b5132 RH |
243 | /* The main hash table. */ |
244 | struct elf_link_hash_table root; | |
245 | ||
246 | /* The stub hash table. */ | |
edd21aca | 247 | struct bfd_hash_table stub_hash_table; |
252b5132 | 248 | |
30667bf3 AM |
249 | /* Linker stub bfd. */ |
250 | bfd *stub_bfd; | |
251 | ||
30667bf3 AM |
252 | /* Linker call-backs. */ |
253 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); | |
254 | void (*layout_sections_again) PARAMS ((void)); | |
255 | ||
25f72752 AM |
256 | /* Array to keep track of which stub sections have been created, and |
257 | information on stub grouping. */ | |
258 | struct map_stub { | |
259 | /* This is the section to which stubs in the group will be | |
260 | attached. */ | |
261 | asection *link_sec; | |
262 | /* The stub section. */ | |
263 | asection *stub_sec; | |
30667bf3 | 264 | #if ! LONG_BRANCH_PIC_IN_SHLIB |
25f72752 AM |
265 | /* The stub section's reloc section. */ |
266 | asection *reloc_sec; | |
30667bf3 | 267 | #endif |
25f72752 | 268 | } *stub_group; |
30667bf3 | 269 | |
30667bf3 AM |
270 | /* Short-cuts to get to dynamic linker sections. */ |
271 | asection *sgot; | |
272 | asection *srelgot; | |
273 | asection *splt; | |
274 | asection *srelplt; | |
275 | asection *sdynbss; | |
276 | asection *srelbss; | |
47d89dba | 277 | |
c46b7515 AM |
278 | /* Used during a final link to store the base of the text and data |
279 | segments so that we can perform SEGREL relocations. */ | |
280 | bfd_vma text_segment_base; | |
281 | bfd_vma data_segment_base; | |
282 | ||
47d89dba AM |
283 | /* Whether we support multiple sub-spaces for shared libs. */ |
284 | unsigned int multi_subspace:1; | |
285 | ||
286 | /* Flags set when PCREL12F and PCREL17F branches detected. Used to | |
287 | select suitable defaults for the stub group size. */ | |
288 | unsigned int has_12bit_branch:1; | |
289 | unsigned int has_17bit_branch:1; | |
290 | ||
291 | /* Set if we need a .plt stub to support lazy dynamic linking. */ | |
292 | unsigned int need_plt_stub:1; | |
252b5132 RH |
293 | }; |
294 | ||
30667bf3 AM |
295 | /* Various hash macros and functions. */ |
296 | #define hppa_link_hash_table(p) \ | |
edd21aca | 297 | ((struct elf32_hppa_link_hash_table *) ((p)->hash)) |
252b5132 | 298 | |
30667bf3 AM |
299 | #define hppa_stub_hash_lookup(table, string, create, copy) \ |
300 | ((struct elf32_hppa_stub_hash_entry *) \ | |
301 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
302 | ||
303 | static struct bfd_hash_entry *stub_hash_newfunc | |
304 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); | |
edd21aca | 305 | |
30667bf3 | 306 | static struct bfd_hash_entry *hppa_link_hash_newfunc |
edd21aca | 307 | PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *)); |
252b5132 RH |
308 | |
309 | static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create | |
310 | PARAMS ((bfd *)); | |
311 | ||
30667bf3 AM |
312 | /* Stub handling functions. */ |
313 | static char *hppa_stub_name | |
314 | PARAMS ((const asection *, const asection *, | |
315 | const struct elf32_hppa_link_hash_entry *, | |
316 | const Elf_Internal_Rela *)); | |
edd21aca | 317 | |
30667bf3 AM |
318 | static struct elf32_hppa_stub_hash_entry *hppa_get_stub_entry |
319 | PARAMS ((const asection *, const asection *, | |
320 | struct elf32_hppa_link_hash_entry *, | |
25f72752 AM |
321 | const Elf_Internal_Rela *, |
322 | struct elf32_hppa_link_hash_table *)); | |
edd21aca | 323 | |
30667bf3 | 324 | static struct elf32_hppa_stub_hash_entry *hppa_add_stub |
25f72752 | 325 | PARAMS ((const char *, asection *, struct elf32_hppa_link_hash_table *)); |
30667bf3 AM |
326 | |
327 | static enum elf32_hppa_stub_type hppa_type_of_stub | |
328 | PARAMS ((asection *, const Elf_Internal_Rela *, | |
329 | struct elf32_hppa_link_hash_entry *, bfd_vma)); | |
330 | ||
331 | static boolean hppa_build_one_stub | |
332 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
333 | ||
334 | static boolean hppa_size_one_stub | |
335 | PARAMS ((struct bfd_hash_entry *, PTR)); | |
336 | ||
30667bf3 AM |
337 | /* BFD and elf backend functions. */ |
338 | static boolean elf32_hppa_object_p PARAMS ((bfd *)); | |
252b5132 | 339 | |
edd21aca AM |
340 | static boolean elf32_hppa_add_symbol_hook |
341 | PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *, | |
342 | const char **, flagword *, asection **, bfd_vma *)); | |
252b5132 | 343 | |
30667bf3 AM |
344 | static boolean elf32_hppa_create_dynamic_sections |
345 | PARAMS ((bfd *, struct bfd_link_info *)); | |
252b5132 | 346 | |
30667bf3 AM |
347 | static boolean elf32_hppa_check_relocs |
348 | PARAMS ((bfd *, struct bfd_link_info *, | |
349 | asection *, const Elf_Internal_Rela *)); | |
350 | ||
351 | static asection *elf32_hppa_gc_mark_hook | |
352 | PARAMS ((bfd *, struct bfd_link_info *, Elf_Internal_Rela *, | |
353 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
354 | ||
355 | static boolean elf32_hppa_gc_sweep_hook | |
356 | PARAMS ((bfd *, struct bfd_link_info *, | |
357 | asection *, const Elf_Internal_Rela *)); | |
358 | ||
74d1c347 AM |
359 | static void elf32_hppa_hide_symbol |
360 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
361 | ||
30667bf3 AM |
362 | static boolean elf32_hppa_adjust_dynamic_symbol |
363 | PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *)); | |
364 | ||
365 | static boolean hppa_handle_PIC_calls | |
366 | PARAMS ((struct elf_link_hash_entry *, PTR)); | |
367 | ||
446f2863 | 368 | static boolean allocate_plt_and_got_and_discard_relocs |
30667bf3 | 369 | PARAMS ((struct elf_link_hash_entry *, PTR)); |
30667bf3 | 370 | |
d5c73c2f AM |
371 | static boolean clobber_millicode_symbols |
372 | PARAMS ((struct elf_link_hash_entry *, struct bfd_link_info *)); | |
373 | ||
30667bf3 AM |
374 | static boolean elf32_hppa_size_dynamic_sections |
375 | PARAMS ((bfd *, struct bfd_link_info *)); | |
376 | ||
c46b7515 AM |
377 | static boolean elf32_hppa_final_link |
378 | PARAMS ((bfd *, struct bfd_link_info *)); | |
379 | ||
380 | static void hppa_record_segment_addr | |
381 | PARAMS ((bfd *, asection *, PTR)); | |
382 | ||
30667bf3 AM |
383 | static bfd_reloc_status_type final_link_relocate |
384 | PARAMS ((asection *, bfd_byte *, const Elf_Internal_Rela *, | |
25f72752 | 385 | bfd_vma, struct elf32_hppa_link_hash_table *, asection *, |
30667bf3 AM |
386 | struct elf32_hppa_link_hash_entry *)); |
387 | ||
388 | static boolean elf32_hppa_relocate_section | |
389 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, | |
390 | bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **)); | |
391 | ||
c46b7515 AM |
392 | static int hppa_unwind_entry_compare |
393 | PARAMS ((const PTR, const PTR)); | |
394 | ||
30667bf3 AM |
395 | static boolean elf32_hppa_finish_dynamic_symbol |
396 | PARAMS ((bfd *, struct bfd_link_info *, | |
397 | struct elf_link_hash_entry *, Elf_Internal_Sym *)); | |
398 | ||
399 | static boolean elf32_hppa_finish_dynamic_sections | |
400 | PARAMS ((bfd *, struct bfd_link_info *)); | |
401 | ||
d952f17a AM |
402 | static void elf32_hppa_post_process_headers |
403 | PARAMS ((bfd *, struct bfd_link_info *)); | |
404 | ||
30667bf3 AM |
405 | static int elf32_hppa_elf_get_symbol_type |
406 | PARAMS ((Elf_Internal_Sym *, int)); | |
252b5132 | 407 | |
252b5132 RH |
408 | /* Assorted hash table functions. */ |
409 | ||
410 | /* Initialize an entry in the stub hash table. */ | |
411 | ||
412 | static struct bfd_hash_entry * | |
30667bf3 | 413 | stub_hash_newfunc (entry, table, string) |
252b5132 RH |
414 | struct bfd_hash_entry *entry; |
415 | struct bfd_hash_table *table; | |
416 | const char *string; | |
417 | { | |
418 | struct elf32_hppa_stub_hash_entry *ret; | |
419 | ||
420 | ret = (struct elf32_hppa_stub_hash_entry *) entry; | |
421 | ||
422 | /* Allocate the structure if it has not already been allocated by a | |
423 | subclass. */ | |
424 | if (ret == NULL) | |
30667bf3 AM |
425 | { |
426 | ret = ((struct elf32_hppa_stub_hash_entry *) | |
427 | bfd_hash_allocate (table, | |
428 | sizeof (struct elf32_hppa_stub_hash_entry))); | |
429 | if (ret == NULL) | |
430 | return NULL; | |
431 | } | |
252b5132 RH |
432 | |
433 | /* Call the allocation method of the superclass. */ | |
434 | ret = ((struct elf32_hppa_stub_hash_entry *) | |
435 | bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string)); | |
436 | ||
437 | if (ret) | |
438 | { | |
439 | /* Initialize the local fields. */ | |
edd21aca | 440 | ret->stub_sec = NULL; |
30667bf3 AM |
441 | #if ! LONG_BRANCH_PIC_IN_SHLIB |
442 | ret->reloc_sec = NULL; | |
443 | #endif | |
444 | ret->stub_offset = 0; | |
252b5132 RH |
445 | ret->target_value = 0; |
446 | ret->target_section = NULL; | |
30667bf3 AM |
447 | ret->stub_type = hppa_stub_long_branch; |
448 | ret->h = NULL; | |
25f72752 | 449 | ret->id_sec = NULL; |
30667bf3 AM |
450 | } |
451 | ||
452 | return (struct bfd_hash_entry *) ret; | |
453 | } | |
454 | ||
30667bf3 AM |
455 | /* Initialize an entry in the link hash table. */ |
456 | ||
457 | static struct bfd_hash_entry * | |
458 | hppa_link_hash_newfunc (entry, table, string) | |
459 | struct bfd_hash_entry *entry; | |
460 | struct bfd_hash_table *table; | |
461 | const char *string; | |
462 | { | |
463 | struct elf32_hppa_link_hash_entry *ret; | |
464 | ||
465 | ret = (struct elf32_hppa_link_hash_entry *) entry; | |
466 | ||
467 | /* Allocate the structure if it has not already been allocated by a | |
468 | subclass. */ | |
469 | if (ret == NULL) | |
470 | { | |
471 | ret = ((struct elf32_hppa_link_hash_entry *) | |
472 | bfd_hash_allocate (table, | |
473 | sizeof (struct elf32_hppa_link_hash_entry))); | |
474 | if (ret == NULL) | |
475 | return NULL; | |
476 | } | |
477 | ||
478 | /* Call the allocation method of the superclass. */ | |
479 | ret = ((struct elf32_hppa_link_hash_entry *) | |
480 | _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret, | |
481 | table, string)); | |
482 | ||
483 | if (ret) | |
484 | { | |
485 | /* Initialize the local fields. */ | |
486 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
487 | ret->stub_reloc_sec = NULL; | |
488 | #endif | |
489 | ret->stub_cache = NULL; | |
30667bf3 | 490 | ret->reloc_entries = NULL; |
12cca0d2 | 491 | ret->maybe_pic_call = 0; |
30667bf3 | 492 | ret->pic_call = 0; |
74d1c347 AM |
493 | ret->plabel = 0; |
494 | ret->plt_abs = 0; | |
252b5132 RH |
495 | } |
496 | ||
497 | return (struct bfd_hash_entry *) ret; | |
498 | } | |
499 | ||
252b5132 RH |
500 | /* Create the derived linker hash table. The PA ELF port uses the derived |
501 | hash table to keep information specific to the PA ELF linker (without | |
502 | using static variables). */ | |
503 | ||
504 | static struct bfd_link_hash_table * | |
505 | elf32_hppa_link_hash_table_create (abfd) | |
506 | bfd *abfd; | |
507 | { | |
508 | struct elf32_hppa_link_hash_table *ret; | |
509 | ||
edd21aca | 510 | ret = ((struct elf32_hppa_link_hash_table *) bfd_alloc (abfd, sizeof (*ret))); |
252b5132 RH |
511 | if (ret == NULL) |
512 | return NULL; | |
edd21aca | 513 | |
30667bf3 | 514 | if (!_bfd_elf_link_hash_table_init (&ret->root, abfd, hppa_link_hash_newfunc)) |
252b5132 RH |
515 | { |
516 | bfd_release (abfd, ret); | |
517 | return NULL; | |
518 | } | |
edd21aca AM |
519 | |
520 | /* Init the stub hash table too. */ | |
30667bf3 | 521 | if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc)) |
edd21aca AM |
522 | return NULL; |
523 | ||
30667bf3 | 524 | ret->stub_bfd = NULL; |
30667bf3 AM |
525 | ret->add_stub_section = NULL; |
526 | ret->layout_sections_again = NULL; | |
25f72752 | 527 | ret->stub_group = NULL; |
30667bf3 AM |
528 | ret->sgot = NULL; |
529 | ret->srelgot = NULL; | |
530 | ret->splt = NULL; | |
531 | ret->srelplt = NULL; | |
532 | ret->sdynbss = NULL; | |
533 | ret->srelbss = NULL; | |
c46b7515 AM |
534 | ret->text_segment_base = (bfd_vma) -1; |
535 | ret->data_segment_base = (bfd_vma) -1; | |
47d89dba AM |
536 | ret->multi_subspace = 0; |
537 | ret->has_12bit_branch = 0; | |
538 | ret->has_17bit_branch = 0; | |
539 | ret->need_plt_stub = 0; | |
252b5132 RH |
540 | |
541 | return &ret->root.root; | |
542 | } | |
543 | ||
30667bf3 AM |
544 | /* Build a name for an entry in the stub hash table. */ |
545 | ||
edd21aca | 546 | static char * |
30667bf3 | 547 | hppa_stub_name (input_section, sym_sec, hash, rel) |
edd21aca | 548 | const asection *input_section; |
30667bf3 AM |
549 | const asection *sym_sec; |
550 | const struct elf32_hppa_link_hash_entry *hash; | |
551 | const Elf_Internal_Rela *rel; | |
edd21aca AM |
552 | { |
553 | char *stub_name; | |
74d1c347 | 554 | size_t len; |
edd21aca | 555 | |
30667bf3 AM |
556 | if (hash) |
557 | { | |
558 | len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1; | |
559 | stub_name = bfd_malloc (len); | |
560 | if (stub_name != NULL) | |
561 | { | |
562 | sprintf (stub_name, "%08x_%s+%x", | |
563 | input_section->id & 0xffffffff, | |
564 | hash->elf.root.root.string, | |
565 | (int) rel->r_addend & 0xffffffff); | |
566 | } | |
567 | } | |
568 | else | |
edd21aca | 569 | { |
30667bf3 AM |
570 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
571 | stub_name = bfd_malloc (len); | |
572 | if (stub_name != NULL) | |
573 | { | |
574 | sprintf (stub_name, "%08x_%x:%x+%x", | |
575 | input_section->id & 0xffffffff, | |
576 | sym_sec->id & 0xffffffff, | |
577 | (int) ELF32_R_SYM (rel->r_info) & 0xffffffff, | |
578 | (int) rel->r_addend & 0xffffffff); | |
579 | } | |
edd21aca AM |
580 | } |
581 | return stub_name; | |
582 | } | |
252b5132 | 583 | |
30667bf3 AM |
584 | /* Look up an entry in the stub hash. Stub entries are cached because |
585 | creating the stub name takes a bit of time. */ | |
586 | ||
587 | static struct elf32_hppa_stub_hash_entry * | |
25f72752 | 588 | hppa_get_stub_entry (input_section, sym_sec, hash, rel, hplink) |
30667bf3 AM |
589 | const asection *input_section; |
590 | const asection *sym_sec; | |
591 | struct elf32_hppa_link_hash_entry *hash; | |
592 | const Elf_Internal_Rela *rel; | |
25f72752 | 593 | struct elf32_hppa_link_hash_table *hplink; |
252b5132 | 594 | { |
30667bf3 | 595 | struct elf32_hppa_stub_hash_entry *stub_entry; |
25f72752 AM |
596 | const asection *id_sec; |
597 | ||
598 | /* If this input section is part of a group of sections sharing one | |
599 | stub section, then use the id of the first section in the group. | |
600 | Stub names need to include a section id, as there may well be | |
601 | more than one stub used to reach say, printf, and we need to | |
602 | distinguish between them. */ | |
603 | id_sec = hplink->stub_group[input_section->id].link_sec; | |
edd21aca | 604 | |
30667bf3 AM |
605 | if (hash != NULL && hash->stub_cache != NULL |
606 | && hash->stub_cache->h == hash | |
25f72752 | 607 | && hash->stub_cache->id_sec == id_sec) |
edd21aca | 608 | { |
30667bf3 AM |
609 | stub_entry = hash->stub_cache; |
610 | } | |
611 | else | |
612 | { | |
30667bf3 | 613 | char *stub_name; |
edd21aca | 614 | |
25f72752 | 615 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, rel); |
30667bf3 AM |
616 | if (stub_name == NULL) |
617 | return NULL; | |
edd21aca | 618 | |
25f72752 AM |
619 | stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table, |
620 | stub_name, false, false); | |
30667bf3 AM |
621 | if (stub_entry == NULL) |
622 | { | |
623 | if (hash == NULL || hash->elf.root.type != bfd_link_hash_undefweak) | |
624 | (*_bfd_error_handler) (_("%s(%s+0x%lx): cannot find stub entry %s"), | |
625 | bfd_get_filename (input_section->owner), | |
626 | input_section->name, | |
627 | (long) rel->r_offset, | |
628 | stub_name); | |
629 | } | |
630 | else | |
631 | { | |
632 | if (hash != NULL) | |
633 | hash->stub_cache = stub_entry; | |
634 | } | |
635 | ||
636 | free (stub_name); | |
edd21aca | 637 | } |
30667bf3 AM |
638 | |
639 | return stub_entry; | |
640 | } | |
641 | ||
30667bf3 AM |
642 | /* Add a new stub entry to the stub hash. Not all fields of the new |
643 | stub entry are initialised. */ | |
644 | ||
645 | static struct elf32_hppa_stub_hash_entry * | |
25f72752 | 646 | hppa_add_stub (stub_name, section, hplink) |
30667bf3 AM |
647 | const char *stub_name; |
648 | asection *section; | |
25f72752 | 649 | struct elf32_hppa_link_hash_table *hplink; |
30667bf3 | 650 | { |
25f72752 | 651 | asection *link_sec; |
30667bf3 | 652 | asection *stub_sec; |
30667bf3 | 653 | struct elf32_hppa_stub_hash_entry *stub_entry; |
edd21aca | 654 | |
25f72752 AM |
655 | link_sec = hplink->stub_group[section->id].link_sec; |
656 | stub_sec = hplink->stub_group[section->id].stub_sec; | |
30667bf3 | 657 | if (stub_sec == NULL) |
edd21aca | 658 | { |
25f72752 | 659 | stub_sec = hplink->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
660 | if (stub_sec == NULL) |
661 | { | |
74d1c347 | 662 | size_t len; |
30667bf3 AM |
663 | char *s_name; |
664 | ||
25f72752 | 665 | len = strlen (link_sec->name) + sizeof (STUB_SUFFIX); |
30667bf3 AM |
666 | s_name = bfd_alloc (hplink->stub_bfd, len); |
667 | if (s_name == NULL) | |
668 | return NULL; | |
669 | ||
25f72752 | 670 | strcpy (s_name, link_sec->name); |
30667bf3 | 671 | strcpy (s_name + len - sizeof (STUB_SUFFIX), STUB_SUFFIX); |
25f72752 | 672 | stub_sec = (*hplink->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
673 | if (stub_sec == NULL) |
674 | return NULL; | |
25f72752 | 675 | hplink->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 676 | } |
25f72752 | 677 | hplink->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 678 | } |
252b5132 | 679 | |
30667bf3 AM |
680 | /* Enter this entry into the linker stub hash table. */ |
681 | stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table, stub_name, | |
682 | true, false); | |
683 | if (stub_entry == NULL) | |
684 | { | |
685 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
686 | bfd_get_filename (section->owner), | |
687 | stub_name); | |
688 | return NULL; | |
edd21aca AM |
689 | } |
690 | ||
30667bf3 AM |
691 | stub_entry->stub_sec = stub_sec; |
692 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
25f72752 | 693 | stub_entry->reloc_sec = hplink->stub_group[section->id].reloc_sec; |
30667bf3 AM |
694 | #endif |
695 | stub_entry->stub_offset = 0; | |
25f72752 | 696 | stub_entry->id_sec = link_sec; |
30667bf3 | 697 | return stub_entry; |
edd21aca AM |
698 | } |
699 | ||
30667bf3 AM |
700 | /* Determine the type of stub needed, if any, for a call. */ |
701 | ||
702 | static enum elf32_hppa_stub_type | |
703 | hppa_type_of_stub (input_sec, rel, hash, destination) | |
704 | asection *input_sec; | |
705 | const Elf_Internal_Rela *rel; | |
706 | struct elf32_hppa_link_hash_entry *hash; | |
707 | bfd_vma destination; | |
edd21aca | 708 | { |
edd21aca | 709 | bfd_vma location; |
30667bf3 AM |
710 | bfd_vma branch_offset; |
711 | bfd_vma max_branch_offset; | |
712 | unsigned int r_type; | |
713 | ||
714 | if (hash != NULL | |
715 | && (((hash->elf.root.type == bfd_link_hash_defined | |
74d1c347 AM |
716 | || hash->elf.root.type == bfd_link_hash_defweak) |
717 | && hash->elf.root.u.def.section->output_section == NULL) | |
718 | || (hash->elf.root.type == bfd_link_hash_defweak | |
719 | && hash->elf.dynindx != -1 | |
720 | && hash->elf.plt.offset != (bfd_vma) -1) | |
30667bf3 AM |
721 | || hash->elf.root.type == bfd_link_hash_undefweak |
722 | || hash->elf.root.type == bfd_link_hash_undefined | |
12cca0d2 | 723 | || (hash->maybe_pic_call && !(input_sec->flags & SEC_HAS_GOT_REF)))) |
30667bf3 AM |
724 | { |
725 | /* If output_section is NULL, then it's a symbol defined in a | |
726 | shared library. We will need an import stub. Decide between | |
74d1c347 AM |
727 | hppa_stub_import and hppa_stub_import_shared later. For |
728 | shared links we need stubs for undefined or weak syms too; | |
729 | They will presumably be resolved by the dynamic linker. */ | |
30667bf3 AM |
730 | return hppa_stub_import; |
731 | } | |
edd21aca | 732 | |
30667bf3 AM |
733 | /* Determine where the call point is. */ |
734 | location = (input_sec->output_offset | |
735 | + input_sec->output_section->vma | |
736 | + rel->r_offset); | |
edd21aca | 737 | |
30667bf3 AM |
738 | branch_offset = destination - location - 8; |
739 | r_type = ELF32_R_TYPE (rel->r_info); | |
edd21aca | 740 | |
30667bf3 AM |
741 | /* Determine if a long branch stub is needed. parisc branch offsets |
742 | are relative to the second instruction past the branch, ie. +8 | |
743 | bytes on from the branch instruction location. The offset is | |
744 | signed and counts in units of 4 bytes. */ | |
745 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 746 | { |
30667bf3 AM |
747 | max_branch_offset = (1 << (17-1)) << 2; |
748 | } | |
749 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
750 | { | |
751 | max_branch_offset = (1 << (12-1)) << 2; | |
752 | } | |
25f72752 | 753 | else /* R_PARISC_PCREL22F. */ |
30667bf3 AM |
754 | { |
755 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
756 | } |
757 | ||
30667bf3 | 758 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
edd21aca | 759 | { |
74d1c347 | 760 | #if LONG_BRANCH_VIA_PLT |
30667bf3 AM |
761 | if (hash != NULL |
762 | && hash->elf.dynindx != -1 | |
4dc86686 AM |
763 | && hash->elf.plt.offset != (bfd_vma) -1 |
764 | && hash->elf.type != STT_PARISC_MILLI) | |
30667bf3 AM |
765 | { |
766 | /* If we are doing a shared link and find we need a long | |
767 | branch stub, then go via the .plt if possible. */ | |
768 | return hppa_stub_import; | |
769 | } | |
770 | else | |
771 | #endif | |
772 | return hppa_stub_long_branch; | |
773 | } | |
774 | return hppa_stub_none; | |
775 | } | |
edd21aca | 776 | |
30667bf3 AM |
777 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
778 | IN_ARG contains the link info pointer. */ | |
edd21aca | 779 | |
30667bf3 AM |
780 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
781 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 782 | |
30667bf3 | 783 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 784 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 785 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 786 | |
3ee1d854 AM |
787 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
788 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 789 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 790 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 791 | |
3ee1d854 AM |
792 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
793 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 794 | |
30667bf3 AM |
795 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
796 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
797 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
798 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 799 | |
30667bf3 AM |
800 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
801 | #define NOP 0x08000240 /* nop */ | |
802 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
803 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
804 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 805 | |
30667bf3 AM |
806 | #ifndef R19_STUBS |
807 | #define R19_STUBS 1 | |
808 | #endif | |
edd21aca | 809 | |
30667bf3 AM |
810 | #if R19_STUBS |
811 | #define LDW_R1_DLT LDW_R1_R19 | |
812 | #else | |
813 | #define LDW_R1_DLT LDW_R1_DP | |
814 | #endif | |
edd21aca | 815 | |
30667bf3 AM |
816 | static boolean |
817 | hppa_build_one_stub (gen_entry, in_arg) | |
818 | struct bfd_hash_entry *gen_entry; | |
819 | PTR in_arg; | |
820 | { | |
821 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
822 | struct bfd_link_info *info; | |
823 | struct elf32_hppa_link_hash_table *hplink; | |
824 | asection *stub_sec; | |
825 | bfd *stub_bfd; | |
826 | bfd_byte *loc; | |
827 | bfd_vma sym_value; | |
74d1c347 | 828 | bfd_vma insn; |
8dea1268 | 829 | bfd_vma off; |
74d1c347 | 830 | int val; |
30667bf3 | 831 | int size; |
edd21aca | 832 | |
30667bf3 AM |
833 | /* Massage our args to the form they really have. */ |
834 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
835 | info = (struct bfd_link_info *) in_arg; | |
836 | ||
837 | hplink = hppa_link_hash_table (info); | |
838 | stub_sec = stub_entry->stub_sec; | |
edd21aca | 839 | |
30667bf3 | 840 | /* Make a note of the offset within the stubs for this entry. */ |
74d1c347 | 841 | stub_entry->stub_offset = stub_sec->_raw_size; |
30667bf3 | 842 | loc = stub_sec->contents + stub_entry->stub_offset; |
252b5132 | 843 | |
30667bf3 AM |
844 | stub_bfd = stub_sec->owner; |
845 | ||
846 | switch (stub_entry->stub_type) | |
847 | { | |
848 | case hppa_stub_long_branch: | |
849 | /* Create the long branch. A long branch is formed with "ldil" | |
850 | loading the upper bits of the target address into a register, | |
851 | then branching with "be" which adds in the lower bits. | |
852 | The "be" has its delay slot nullified. */ | |
853 | sym_value = (stub_entry->target_value | |
854 | + stub_entry->target_section->output_offset | |
855 | + stub_entry->target_section->output_section->vma); | |
856 | ||
74d1c347 AM |
857 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel); |
858 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); | |
30667bf3 AM |
859 | bfd_put_32 (stub_bfd, insn, loc); |
860 | ||
74d1c347 AM |
861 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel) >> 2; |
862 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); | |
30667bf3 AM |
863 | bfd_put_32 (stub_bfd, insn, loc + 4); |
864 | ||
865 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
866 | if (info->shared) | |
867 | { | |
868 | /* Output a dynamic relocation for this stub. We only | |
869 | output one PCREL21L reloc per stub, trusting that the | |
870 | dynamic linker will also fix the implied PCREL17R for the | |
871 | second instruction. PCREL21L dynamic relocs had better | |
872 | never be emitted for some other purpose... */ | |
873 | asection *srel; | |
874 | Elf_Internal_Rela outrel; | |
875 | ||
876 | if (stub_entry->h == NULL) | |
edd21aca AM |
877 | { |
878 | (*_bfd_error_handler) | |
30667bf3 AM |
879 | (_("%s(%s+0x%lx): cannot relocate %s, recompile with -ffunction-sections"), |
880 | bfd_get_filename (stub_entry->target_section->owner), | |
881 | stub_sec->name, | |
882 | (long) stub_entry->stub_offset, | |
883 | stub_entry->root.string); | |
884 | bfd_set_error (bfd_error_bad_value); | |
885 | return false; | |
edd21aca AM |
886 | } |
887 | ||
30667bf3 AM |
888 | srel = stub_entry->reloc_sec; |
889 | if (srel == NULL) | |
edd21aca AM |
890 | { |
891 | (*_bfd_error_handler) | |
30667bf3 AM |
892 | (_("Could not find relocation section for %s"), |
893 | stub_sec->name); | |
894 | bfd_set_error (bfd_error_bad_value); | |
895 | return false; | |
edd21aca | 896 | } |
252b5132 | 897 | |
30667bf3 AM |
898 | outrel.r_offset = (stub_entry->stub_offset |
899 | + stub_sec->output_offset | |
900 | + stub_sec->output_section->vma); | |
901 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_PCREL21L); | |
902 | outrel.r_addend = sym_value; | |
903 | bfd_elf32_swap_reloca_out (stub_sec->output_section->owner, | |
904 | &outrel, | |
905 | ((Elf32_External_Rela *) | |
906 | srel->contents + srel->reloc_count)); | |
907 | ++srel->reloc_count; | |
252b5132 | 908 | } |
30667bf3 AM |
909 | #endif |
910 | size = 8; | |
edd21aca AM |
911 | break; |
912 | ||
30667bf3 AM |
913 | case hppa_stub_long_branch_shared: |
914 | /* Branches are relative. This is where we are going to. */ | |
915 | sym_value = (stub_entry->target_value | |
916 | + stub_entry->target_section->output_offset | |
917 | + stub_entry->target_section->output_section->vma); | |
918 | ||
919 | /* And this is where we are coming from, more or less. */ | |
920 | sym_value -= (stub_entry->stub_offset | |
921 | + stub_sec->output_offset | |
922 | + stub_sec->output_section->vma); | |
923 | ||
74d1c347 | 924 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 925 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 926 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
927 | bfd_put_32 (stub_bfd, insn, loc + 4); |
928 | ||
47d89dba | 929 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 930 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
931 | bfd_put_32 (stub_bfd, insn, loc + 8); |
932 | size = 12; | |
933 | break; | |
edd21aca | 934 | |
30667bf3 AM |
935 | case hppa_stub_import: |
936 | case hppa_stub_import_shared: | |
8dea1268 AM |
937 | off = stub_entry->h->elf.plt.offset; |
938 | if (off >= (bfd_vma) -2) | |
49e9d0d3 | 939 | abort (); |
8dea1268 AM |
940 | |
941 | off &= ~ (bfd_vma) 1; | |
942 | sym_value = (off | |
30667bf3 AM |
943 | + hplink->splt->output_offset |
944 | + hplink->splt->output_section->vma | |
945 | - elf_gp (hplink->splt->output_section->owner)); | |
946 | ||
947 | insn = ADDIL_DP; | |
948 | #if R19_STUBS | |
949 | if (stub_entry->stub_type == hppa_stub_import_shared) | |
950 | insn = ADDIL_R19; | |
951 | #endif | |
47d89dba | 952 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_lrsel), |
74d1c347 | 953 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 954 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 955 | |
47d89dba AM |
956 | /* It is critical to use lrsel/rrsel here because we are using |
957 | two different offsets (+0 and +4) from sym_value. If we use | |
958 | lsel/rsel then with unfortunate sym_values we will round | |
959 | sym_value+4 up to the next 2k block leading to a mis-match | |
960 | between the lsel and rsel value. */ | |
961 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 0, e_rrsel); | |
74d1c347 | 962 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 963 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 964 | |
30667bf3 AM |
965 | if (hplink->multi_subspace) |
966 | { | |
47d89dba | 967 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 968 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 969 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 970 | |
74d1c347 AM |
971 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
972 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
973 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
974 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 975 | |
30667bf3 AM |
976 | size = 28; |
977 | } | |
978 | else | |
979 | { | |
74d1c347 | 980 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 981 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 982 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 983 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 984 | |
30667bf3 AM |
985 | size = 16; |
986 | } | |
252b5132 | 987 | |
30667bf3 AM |
988 | if (!info->shared |
989 | && stub_entry->h != NULL | |
990 | && stub_entry->h->pic_call) | |
252b5132 | 991 | { |
30667bf3 AM |
992 | /* Build the .plt entry needed to call a PIC function from |
993 | statically linked code. We don't need any relocs. */ | |
994 | bfd *dynobj; | |
995 | struct elf32_hppa_link_hash_entry *eh; | |
996 | bfd_vma value; | |
252b5132 | 997 | |
74d1c347 | 998 | dynobj = hplink->root.dynobj; |
30667bf3 | 999 | eh = (struct elf32_hppa_link_hash_entry *) stub_entry->h; |
252b5132 | 1000 | |
49e9d0d3 AM |
1001 | if (eh->elf.root.type != bfd_link_hash_defined |
1002 | && eh->elf.root.type != bfd_link_hash_defweak) | |
1003 | abort (); | |
252b5132 | 1004 | |
30667bf3 AM |
1005 | value = (eh->elf.root.u.def.value |
1006 | + eh->elf.root.u.def.section->output_offset | |
1007 | + eh->elf.root.u.def.section->output_section->vma); | |
252b5132 | 1008 | |
30667bf3 | 1009 | /* Fill in the entry in the procedure linkage table. |
252b5132 | 1010 | |
30667bf3 | 1011 | The format of a plt entry is |
74d1c347 AM |
1012 | <funcaddr> |
1013 | <__gp>. */ | |
252b5132 | 1014 | |
30667bf3 | 1015 | bfd_put_32 (hplink->splt->owner, value, |
8dea1268 | 1016 | hplink->splt->contents + off); |
30667bf3 AM |
1017 | value = elf_gp (hplink->splt->output_section->owner); |
1018 | bfd_put_32 (hplink->splt->owner, value, | |
8dea1268 | 1019 | hplink->splt->contents + off + 4); |
252b5132 | 1020 | } |
30667bf3 | 1021 | break; |
252b5132 | 1022 | |
30667bf3 AM |
1023 | case hppa_stub_export: |
1024 | /* Branches are relative. This is where we are going to. */ | |
1025 | sym_value = (stub_entry->target_value | |
1026 | + stub_entry->target_section->output_offset | |
1027 | + stub_entry->target_section->output_section->vma); | |
252b5132 | 1028 | |
30667bf3 AM |
1029 | /* And this is where we are coming from. */ |
1030 | sym_value -= (stub_entry->stub_offset | |
1031 | + stub_sec->output_offset | |
1032 | + stub_sec->output_section->vma); | |
edd21aca | 1033 | |
30667bf3 AM |
1034 | if (sym_value - 8 + 0x40000 >= 0x80000) |
1035 | { | |
edd21aca | 1036 | (*_bfd_error_handler) |
30667bf3 AM |
1037 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
1038 | bfd_get_filename (stub_entry->target_section->owner), | |
1039 | stub_sec->name, | |
1040 | (long) stub_entry->stub_offset, | |
1041 | stub_entry->root.string); | |
1042 | bfd_set_error (bfd_error_bad_value); | |
edd21aca | 1043 | return false; |
252b5132 | 1044 | } |
30667bf3 | 1045 | |
74d1c347 AM |
1046 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
1047 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
30667bf3 AM |
1048 | bfd_put_32 (stub_bfd, insn, loc); |
1049 | ||
74d1c347 AM |
1050 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
1051 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
1052 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
1053 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
1054 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
1055 | |
1056 | /* Point the function symbol at the stub. */ | |
1057 | stub_entry->h->elf.root.u.def.section = stub_sec; | |
74d1c347 | 1058 | stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size; |
30667bf3 AM |
1059 | |
1060 | size = 24; | |
1061 | break; | |
1062 | ||
1063 | default: | |
1064 | BFD_FAIL (); | |
1065 | return false; | |
252b5132 RH |
1066 | } |
1067 | ||
74d1c347 | 1068 | stub_sec->_raw_size += size; |
252b5132 RH |
1069 | return true; |
1070 | } | |
1071 | ||
30667bf3 AM |
1072 | #undef LDIL_R1 |
1073 | #undef BE_SR4_R1 | |
1074 | #undef BL_R1 | |
1075 | #undef ADDIL_R1 | |
1076 | #undef DEPI_R1 | |
1077 | #undef ADDIL_DP | |
1078 | #undef LDW_R1_R21 | |
1079 | #undef LDW_R1_DLT | |
1080 | #undef LDW_R1_R19 | |
1081 | #undef ADDIL_R19 | |
1082 | #undef LDW_R1_DP | |
1083 | #undef LDSID_R21_R1 | |
1084 | #undef MTSP_R1 | |
1085 | #undef BE_SR0_R21 | |
1086 | #undef STW_RP | |
1087 | #undef BV_R0_R21 | |
1088 | #undef BL_RP | |
1089 | #undef NOP | |
1090 | #undef LDW_RP | |
1091 | #undef LDSID_RP_R1 | |
1092 | #undef BE_SR0_RP | |
252b5132 | 1093 | |
30667bf3 AM |
1094 | /* As above, but don't actually build the stub. Just bump offset so |
1095 | we know stub section sizes. */ | |
1096 | ||
1097 | static boolean | |
1098 | hppa_size_one_stub (gen_entry, in_arg) | |
1099 | struct bfd_hash_entry *gen_entry; | |
1100 | PTR in_arg; | |
252b5132 | 1101 | { |
30667bf3 AM |
1102 | struct elf32_hppa_stub_hash_entry *stub_entry; |
1103 | struct elf32_hppa_link_hash_table *hplink; | |
1104 | int size; | |
1105 | ||
1106 | /* Massage our args to the form they really have. */ | |
1107 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
1108 | hplink = (struct elf32_hppa_link_hash_table *) in_arg; | |
1109 | ||
1110 | if (stub_entry->stub_type == hppa_stub_long_branch) | |
74d1c347 AM |
1111 | { |
1112 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
1113 | if (stub_entry->reloc_sec != NULL) | |
1114 | stub_entry->reloc_sec->_raw_size += sizeof (Elf32_External_Rela); | |
1115 | #endif | |
1116 | size = 8; | |
1117 | } | |
30667bf3 AM |
1118 | else if (stub_entry->stub_type == hppa_stub_long_branch_shared) |
1119 | size = 12; | |
1120 | else if (stub_entry->stub_type == hppa_stub_export) | |
1121 | size = 24; | |
74d1c347 | 1122 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 1123 | { |
30667bf3 AM |
1124 | if (hplink->multi_subspace) |
1125 | size = 28; | |
1126 | else | |
1127 | size = 16; | |
1128 | } | |
252b5132 | 1129 | |
74d1c347 | 1130 | stub_entry->stub_sec->_raw_size += size; |
30667bf3 AM |
1131 | return true; |
1132 | } | |
252b5132 | 1133 | |
30667bf3 AM |
1134 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
1135 | Additionally we set the default architecture and machine. */ | |
1136 | ||
1137 | static boolean | |
1138 | elf32_hppa_object_p (abfd) | |
1139 | bfd *abfd; | |
1140 | { | |
24a5e751 L |
1141 | Elf_Internal_Ehdr * i_ehdrp; |
1142 | unsigned int flags; | |
252b5132 | 1143 | |
24a5e751 L |
1144 | i_ehdrp = elf_elfheader (abfd); |
1145 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
1146 | { | |
1147 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX) | |
1148 | return false; | |
1149 | } | |
1150 | else | |
1151 | { | |
1152 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
1153 | return false; | |
1154 | } | |
1155 | ||
1156 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
1157 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
1158 | { | |
1159 | case EFA_PARISC_1_0: | |
1160 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
1161 | case EFA_PARISC_1_1: | |
1162 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
1163 | case EFA_PARISC_2_0: | |
1164 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
1165 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
1166 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
1167 | } | |
1168 | return true; | |
252b5132 RH |
1169 | } |
1170 | ||
252b5132 RH |
1171 | /* Undo the generic ELF code's subtraction of section->vma from the |
1172 | value of each external symbol. */ | |
1173 | ||
1174 | static boolean | |
1175 | elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp) | |
5f771d47 ILT |
1176 | bfd *abfd ATTRIBUTE_UNUSED; |
1177 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1178 | const Elf_Internal_Sym *sym ATTRIBUTE_UNUSED; | |
1179 | const char **namep ATTRIBUTE_UNUSED; | |
1180 | flagword *flagsp ATTRIBUTE_UNUSED; | |
252b5132 RH |
1181 | asection **secp; |
1182 | bfd_vma *valp; | |
1183 | { | |
1184 | *valp += (*secp)->vma; | |
1185 | return true; | |
1186 | } | |
1187 | ||
30667bf3 AM |
1188 | /* Create the .plt and .got sections, and set up our hash table |
1189 | short-cuts to various dynamic sections. */ | |
1190 | ||
1191 | static boolean | |
1192 | elf32_hppa_create_dynamic_sections (abfd, info) | |
1193 | bfd *abfd; | |
1194 | struct bfd_link_info *info; | |
252b5132 | 1195 | { |
30667bf3 | 1196 | struct elf32_hppa_link_hash_table *hplink; |
edd21aca | 1197 | |
30667bf3 AM |
1198 | /* Don't try to create the .plt and .got twice. */ |
1199 | hplink = hppa_link_hash_table (info); | |
1200 | if (hplink->splt != NULL) | |
1201 | return true; | |
edd21aca | 1202 | |
30667bf3 AM |
1203 | /* Call the generic code to do most of the work. */ |
1204 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
1205 | return false; | |
252b5132 | 1206 | |
47d89dba | 1207 | hplink->splt = bfd_get_section_by_name (abfd, ".plt"); |
30667bf3 AM |
1208 | hplink->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
1209 | ||
1210 | hplink->sgot = bfd_get_section_by_name (abfd, ".got"); | |
1211 | hplink->srelgot = bfd_make_section (abfd, ".rela.got"); | |
1212 | if (hplink->srelgot == NULL | |
1213 | || ! bfd_set_section_flags (abfd, hplink->srelgot, | |
1214 | (SEC_ALLOC | |
1215 | | SEC_LOAD | |
1216 | | SEC_HAS_CONTENTS | |
1217 | | SEC_IN_MEMORY | |
1218 | | SEC_LINKER_CREATED | |
1219 | | SEC_READONLY)) | |
1220 | || ! bfd_set_section_alignment (abfd, hplink->srelgot, 2)) | |
1221 | return false; | |
edd21aca | 1222 | |
30667bf3 AM |
1223 | hplink->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
1224 | hplink->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
1225 | ||
1226 | return true; | |
1227 | } | |
1228 | ||
30667bf3 AM |
1229 | /* Look through the relocs for a section during the first phase, and |
1230 | allocate space in the global offset table or procedure linkage | |
1231 | table. At this point we haven't necessarily read all the input | |
1232 | files. */ | |
252b5132 RH |
1233 | |
1234 | static boolean | |
30667bf3 AM |
1235 | elf32_hppa_check_relocs (abfd, info, sec, relocs) |
1236 | bfd *abfd; | |
1237 | struct bfd_link_info *info; | |
1238 | asection *sec; | |
1239 | const Elf_Internal_Rela *relocs; | |
252b5132 | 1240 | { |
30667bf3 AM |
1241 | bfd *dynobj; |
1242 | Elf_Internal_Shdr *symtab_hdr; | |
1243 | struct elf_link_hash_entry **sym_hashes; | |
1244 | bfd_signed_vma *local_got_refcounts; | |
1245 | const Elf_Internal_Rela *rel; | |
1246 | const Elf_Internal_Rela *rel_end; | |
1247 | struct elf32_hppa_link_hash_table *hplink; | |
1248 | asection *sreloc; | |
1249 | asection *stubreloc; | |
1250 | ||
1251 | if (info->relocateable) | |
1252 | return true; | |
1253 | ||
1254 | hplink = hppa_link_hash_table (info); | |
74d1c347 | 1255 | dynobj = hplink->root.dynobj; |
30667bf3 AM |
1256 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1257 | sym_hashes = elf_sym_hashes (abfd); | |
1258 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
1259 | sreloc = NULL; | |
1260 | stubreloc = NULL; | |
1261 | ||
1262 | rel_end = relocs + sec->reloc_count; | |
1263 | for (rel = relocs; rel < rel_end; rel++) | |
1264 | { | |
1265 | enum { | |
1266 | NEED_GOT = 1, | |
1267 | NEED_PLT = 2, | |
1268 | NEED_DYNREL = 4, | |
1269 | #if LONG_BRANCH_PIC_IN_SHLIB | |
74d1c347 | 1270 | NEED_STUBREL = 0, /* We won't be needing them in this case. */ |
30667bf3 | 1271 | #else |
74d1c347 | 1272 | NEED_STUBREL = 8, |
30667bf3 | 1273 | #endif |
74d1c347 | 1274 | PLT_PLABEL = 16 |
30667bf3 | 1275 | }; |
edd21aca | 1276 | |
30667bf3 AM |
1277 | unsigned int r_symndx, r_type; |
1278 | struct elf32_hppa_link_hash_entry *h; | |
1279 | int need_entry; | |
252b5132 | 1280 | |
30667bf3 | 1281 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 | 1282 | |
30667bf3 AM |
1283 | if (r_symndx < symtab_hdr->sh_info) |
1284 | h = NULL; | |
1285 | else | |
1286 | h = ((struct elf32_hppa_link_hash_entry *) | |
1287 | sym_hashes[r_symndx - symtab_hdr->sh_info]); | |
252b5132 | 1288 | |
30667bf3 | 1289 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 | 1290 | |
30667bf3 AM |
1291 | switch (r_type) |
1292 | { | |
1293 | case R_PARISC_DLTIND14F: | |
1294 | case R_PARISC_DLTIND14R: | |
1295 | case R_PARISC_DLTIND21L: | |
1296 | /* This symbol requires a global offset table entry. */ | |
1297 | need_entry = NEED_GOT; | |
1298 | ||
1299 | /* Mark this section as containing PIC code. */ | |
1300 | sec->flags |= SEC_HAS_GOT_REF; | |
1301 | break; | |
1302 | ||
1303 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1304 | case R_PARISC_PLABEL21L: | |
1305 | case R_PARISC_PLABEL32: | |
74d1c347 | 1306 | /* If the addend is non-zero, we break badly. */ |
49e9d0d3 AM |
1307 | if (rel->r_addend != 0) |
1308 | abort (); | |
74d1c347 AM |
1309 | |
1310 | /* If we are creating a shared library, then we need to | |
1311 | create a PLT entry for all PLABELs, because PLABELs with | |
1312 | local symbols may be passed via a pointer to another | |
1313 | object. Additionally, output a dynamic relocation | |
4dc86686 AM |
1314 | pointing to the PLT entry. |
1315 | For executables, the original 32-bit ABI allowed two | |
1316 | different styles of PLABELs (function pointers): For | |
1317 | global functions, the PLABEL word points into the .plt | |
1318 | two bytes past a (function address, gp) pair, and for | |
1319 | local functions the PLABEL points directly at the | |
1320 | function. The magic +2 for the first type allows us to | |
1321 | differentiate between the two. As you can imagine, this | |
1322 | is a real pain when it comes to generating code to call | |
1323 | functions indirectly or to compare function pointers. | |
1324 | We avoid the mess by always pointing a PLABEL into the | |
1325 | .plt, even for local functions. */ | |
74d1c347 | 1326 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1327 | break; |
1328 | ||
1329 | case R_PARISC_PCREL12F: | |
47d89dba AM |
1330 | hplink->has_12bit_branch = 1; |
1331 | /* Fall thru. */ | |
30667bf3 AM |
1332 | case R_PARISC_PCREL17C: |
1333 | case R_PARISC_PCREL17F: | |
47d89dba AM |
1334 | hplink->has_17bit_branch = 1; |
1335 | /* Fall thru. */ | |
30667bf3 | 1336 | case R_PARISC_PCREL22F: |
47d89dba AM |
1337 | /* Function calls might need to go through the .plt, and |
1338 | might require long branch stubs. */ | |
30667bf3 AM |
1339 | if (h == NULL) |
1340 | { | |
1341 | /* We know local syms won't need a .plt entry, and if | |
1342 | they need a long branch stub we can't guarantee that | |
1343 | we can reach the stub. So just flag an error later | |
1344 | if we're doing a shared link and find we need a long | |
1345 | branch stub. */ | |
1346 | continue; | |
1347 | } | |
1348 | else | |
1349 | { | |
1350 | /* Global symbols will need a .plt entry if they remain | |
1351 | global, and in most cases won't need a long branch | |
1352 | stub. Unfortunately, we have to cater for the case | |
1353 | where a symbol is forced local by versioning, or due | |
1354 | to symbolic linking, and we lose the .plt entry. */ | |
1355 | need_entry = NEED_PLT | NEED_STUBREL; | |
4dc86686 AM |
1356 | if (h->elf.type == STT_PARISC_MILLI) |
1357 | need_entry = NEED_STUBREL; | |
30667bf3 AM |
1358 | } |
1359 | break; | |
1360 | ||
1361 | case R_PARISC_SEGBASE: /* Used to set segment base. */ | |
c46b7515 | 1362 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1363 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1364 | case R_PARISC_PCREL14R: | |
1365 | case R_PARISC_PCREL17R: /* External branches. */ | |
1366 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
1367 | /* We don't need to propagate the relocation if linking a | |
1368 | shared object since these are section relative. */ | |
1369 | continue; | |
1370 | ||
1371 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1372 | case R_PARISC_DPREL14R: | |
1373 | case R_PARISC_DPREL21L: | |
1374 | if (info->shared) | |
1375 | { | |
1376 | (*_bfd_error_handler) | |
1377 | (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"), | |
1378 | bfd_get_filename (abfd), | |
1379 | elf_hppa_howto_table[r_type].name); | |
1380 | bfd_set_error (bfd_error_bad_value); | |
1381 | return false; | |
1382 | } | |
1383 | /* Fall through. */ | |
1384 | ||
1385 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1386 | case R_PARISC_DIR17R: | |
47d89dba AM |
1387 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1388 | case R_PARISC_DIR14R: | |
30667bf3 AM |
1389 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
1390 | #if 1 | |
1391 | /* Help debug shared library creation. Any of the above | |
1392 | relocs can be used in shared libs, but they may cause | |
1393 | pages to become unshared. */ | |
1394 | if (info->shared) | |
1395 | { | |
1396 | (*_bfd_error_handler) | |
1397 | (_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"), | |
1398 | bfd_get_filename (abfd), | |
1399 | elf_hppa_howto_table[r_type].name); | |
1400 | } | |
1401 | /* Fall through. */ | |
1402 | #endif | |
1403 | ||
c46b7515 | 1404 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1405 | /* We may want to output a dynamic relocation later. */ |
1406 | need_entry = NEED_DYNREL; | |
1407 | break; | |
1408 | ||
1409 | /* This relocation describes the C++ object vtable hierarchy. | |
1410 | Reconstruct it for later use during GC. */ | |
1411 | case R_PARISC_GNU_VTINHERIT: | |
1412 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, | |
1413 | &h->elf, rel->r_offset)) | |
1414 | return false; | |
1415 | continue; | |
1416 | ||
1417 | /* This relocation describes which C++ vtable entries are actually | |
1418 | used. Record for later use during GC. */ | |
1419 | case R_PARISC_GNU_VTENTRY: | |
1420 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, | |
36605136 | 1421 | &h->elf, rel->r_addend)) |
30667bf3 AM |
1422 | return false; |
1423 | continue; | |
1424 | ||
1425 | default: | |
1426 | continue; | |
1427 | } | |
1428 | ||
1429 | /* Now carry out our orders. */ | |
1430 | if (need_entry & NEED_GOT) | |
1431 | { | |
1432 | /* Allocate space for a GOT entry, as well as a dynamic | |
25f72752 | 1433 | relocation for this entry. */ |
30667bf3 | 1434 | if (dynobj == NULL) |
74d1c347 | 1435 | hplink->root.dynobj = dynobj = abfd; |
30667bf3 AM |
1436 | |
1437 | if (hplink->sgot == NULL) | |
1438 | { | |
1439 | if (! elf32_hppa_create_dynamic_sections (dynobj, info)) | |
1440 | return false; | |
1441 | } | |
1442 | ||
1443 | if (h != NULL) | |
1444 | { | |
1445 | if (h->elf.got.refcount == -1) | |
446f2863 | 1446 | h->elf.got.refcount = 1; |
30667bf3 AM |
1447 | else |
1448 | h->elf.got.refcount += 1; | |
1449 | } | |
1450 | else | |
1451 | { | |
1452 | /* This is a global offset table entry for a local symbol. */ | |
1453 | if (local_got_refcounts == NULL) | |
1454 | { | |
1455 | size_t size; | |
1456 | ||
74d1c347 AM |
1457 | /* Allocate space for local got offsets and local |
1458 | plt offsets. Done this way to save polluting | |
1459 | elf_obj_tdata with another target specific | |
1460 | pointer. */ | |
1461 | size = symtab_hdr->sh_info * 2 * sizeof (bfd_signed_vma); | |
30667bf3 AM |
1462 | local_got_refcounts = ((bfd_signed_vma *) |
1463 | bfd_alloc (abfd, size)); | |
1464 | if (local_got_refcounts == NULL) | |
1465 | return false; | |
1466 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1467 | memset (local_got_refcounts, -1, size); | |
1468 | } | |
1469 | if (local_got_refcounts[r_symndx] == -1) | |
4dc86686 | 1470 | local_got_refcounts[r_symndx] = 1; |
30667bf3 AM |
1471 | else |
1472 | local_got_refcounts[r_symndx] += 1; | |
1473 | } | |
1474 | } | |
1475 | ||
1476 | if (need_entry & NEED_PLT) | |
1477 | { | |
1478 | /* If we are creating a shared library, and this is a reloc | |
1479 | against a weak symbol or a global symbol in a dynamic | |
1480 | object, then we will be creating an import stub and a | |
1481 | .plt entry for the symbol. Similarly, on a normal link | |
1482 | to symbols defined in a dynamic object we'll need the | |
1483 | import stub and a .plt entry. We don't know yet whether | |
1484 | the symbol is defined or not, so make an entry anyway and | |
1485 | clean up later in adjust_dynamic_symbol. */ | |
1486 | if ((sec->flags & SEC_ALLOC) != 0) | |
1487 | { | |
74d1c347 | 1488 | if (h != NULL) |
30667bf3 | 1489 | { |
74d1c347 AM |
1490 | if (h->elf.plt.refcount == -1) |
1491 | { | |
1492 | h->elf.plt.refcount = 1; | |
1493 | h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; | |
1494 | } | |
1495 | else | |
1496 | h->elf.plt.refcount += 1; | |
1497 | ||
36605136 AM |
1498 | /* If this .plt entry is for a plabel, mark it so |
1499 | that adjust_dynamic_symbol will keep the entry | |
1500 | even if it appears to be local. */ | |
74d1c347 AM |
1501 | if (need_entry & PLT_PLABEL) |
1502 | h->plabel = 1; | |
1503 | } | |
1504 | else if (need_entry & PLT_PLABEL) | |
1505 | { | |
68fb2e56 | 1506 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 AM |
1507 | |
1508 | if (local_got_refcounts == NULL) | |
1509 | { | |
1510 | size_t size; | |
1511 | ||
1512 | /* Allocate space for local got offsets and local | |
1513 | plt offsets. */ | |
1514 | size = symtab_hdr->sh_info * 2 * sizeof (bfd_signed_vma); | |
1515 | local_got_refcounts = ((bfd_signed_vma *) | |
1516 | bfd_alloc (abfd, size)); | |
1517 | if (local_got_refcounts == NULL) | |
1518 | return false; | |
1519 | elf_local_got_refcounts (abfd) = local_got_refcounts; | |
1520 | memset (local_got_refcounts, -1, size); | |
1521 | } | |
68fb2e56 AM |
1522 | local_plt_refcounts = (local_got_refcounts |
1523 | + symtab_hdr->sh_info); | |
1524 | if (local_plt_refcounts[r_symndx] == -1) | |
1525 | local_plt_refcounts[r_symndx] = 1; | |
74d1c347 | 1526 | else |
68fb2e56 | 1527 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1528 | } |
30667bf3 AM |
1529 | } |
1530 | } | |
1531 | ||
1532 | if (need_entry & (NEED_DYNREL | NEED_STUBREL)) | |
1533 | { | |
1534 | /* Flag this symbol as having a non-got, non-plt reference | |
1535 | so that we generate copy relocs if it turns out to be | |
1536 | dynamic. */ | |
446f2863 AM |
1537 | if (need_entry == NEED_DYNREL |
1538 | && h != NULL | |
1539 | && !info->shared | |
1540 | && (sec->flags & SEC_READONLY) != 0) | |
30667bf3 AM |
1541 | h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; |
1542 | ||
1543 | /* If we are creating a shared library then we need to copy | |
1544 | the reloc into the shared library. However, if we are | |
1545 | linking with -Bsymbolic, we need only copy absolute | |
1546 | relocs or relocs against symbols that are not defined in | |
1547 | an object we are including in the link. PC- or DP- or | |
1548 | DLT-relative relocs against any local sym or global sym | |
1549 | with DEF_REGULAR set, can be discarded. At this point we | |
1550 | have not seen all the input files, so it is possible that | |
1551 | DEF_REGULAR is not set now but will be set later (it is | |
1552 | never cleared). We account for that possibility below by | |
1553 | storing information in the reloc_entries field of the | |
1554 | hash table entry. | |
1555 | ||
1556 | A similar situation to the -Bsymbolic case occurs when | |
1557 | creating shared libraries and symbol visibility changes | |
1558 | render the symbol local. | |
1559 | ||
1560 | As it turns out, all the relocs we will be creating here | |
1561 | are absolute, so we cannot remove them on -Bsymbolic | |
1562 | links or visibility changes anyway. A STUB_REL reloc | |
1563 | is absolute too, as in that case it is the reloc in the | |
1564 | stub we will be creating, rather than copying the PCREL | |
1565 | reloc in the branch. */ | |
446f2863 AM |
1566 | if ((info->shared |
1567 | && (sec->flags & SEC_ALLOC) != 0 | |
1568 | && (IS_ABSOLUTE_RELOC (r_type) | |
1569 | || (h != NULL | |
1570 | && (!info->symbolic | |
1571 | || h->elf.root.type == bfd_link_hash_defweak | |
1572 | || (h->elf.elf_link_hash_flags | |
1573 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1574 | || (!info->shared | |
1575 | && (sec->flags & SEC_ALLOC) != 0 | |
1576 | && h != NULL | |
1577 | && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
1578 | && (h->elf.root.type == bfd_link_hash_defweak | |
1579 | || (h->elf.elf_link_hash_flags | |
1580 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
30667bf3 AM |
1581 | { |
1582 | boolean doit; | |
1583 | asection *srel; | |
1584 | ||
1585 | srel = sreloc; | |
1586 | if ((need_entry & NEED_STUBREL)) | |
1587 | srel = stubreloc; | |
1588 | ||
1589 | /* Create a reloc section in dynobj and make room for | |
1590 | this reloc. */ | |
1591 | if (srel == NULL) | |
1592 | { | |
1593 | char *name; | |
1594 | ||
1595 | if (dynobj == NULL) | |
74d1c347 | 1596 | hplink->root.dynobj = dynobj = abfd; |
30667bf3 AM |
1597 | |
1598 | name = bfd_elf_string_from_elf_section | |
1599 | (abfd, | |
1600 | elf_elfheader (abfd)->e_shstrndx, | |
1601 | elf_section_data (sec)->rel_hdr.sh_name); | |
1602 | if (name == NULL) | |
1603 | { | |
1604 | (*_bfd_error_handler) | |
1605 | (_("Could not find relocation section for %s"), | |
1606 | sec->name); | |
1607 | bfd_set_error (bfd_error_bad_value); | |
1608 | return false; | |
1609 | } | |
1610 | ||
1611 | if ((need_entry & NEED_STUBREL)) | |
1612 | { | |
74d1c347 | 1613 | size_t len = strlen (name) + sizeof (STUB_SUFFIX); |
30667bf3 AM |
1614 | char *newname = bfd_malloc (len); |
1615 | ||
1616 | if (newname == NULL) | |
1617 | return false; | |
1618 | strcpy (newname, name); | |
1619 | strcpy (newname + len - sizeof (STUB_SUFFIX), | |
1620 | STUB_SUFFIX); | |
1621 | name = newname; | |
1622 | } | |
1623 | ||
1624 | srel = bfd_get_section_by_name (dynobj, name); | |
1625 | if (srel == NULL) | |
1626 | { | |
1627 | flagword flags; | |
1628 | ||
1629 | srel = bfd_make_section (dynobj, name); | |
1630 | flags = (SEC_HAS_CONTENTS | SEC_READONLY | |
1631 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1632 | if ((sec->flags & SEC_ALLOC) != 0) | |
1633 | flags |= SEC_ALLOC | SEC_LOAD; | |
1634 | if (srel == NULL | |
1635 | || !bfd_set_section_flags (dynobj, srel, flags) | |
1636 | || !bfd_set_section_alignment (dynobj, srel, 2)) | |
1637 | return false; | |
1638 | } | |
1639 | else if ((need_entry & NEED_STUBREL)) | |
1640 | free (name); | |
1641 | ||
1642 | if ((need_entry & NEED_STUBREL)) | |
1643 | stubreloc = srel; | |
1644 | else | |
1645 | sreloc = srel; | |
1646 | } | |
1647 | ||
1648 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
1649 | /* If this is a function call, we only need one dynamic | |
1650 | reloc for the stub as all calls to a particular | |
1651 | function will go through the same stub. Actually, a | |
1652 | long branch stub needs two relocations, but we count | |
1653 | on some intelligence on the part of the dynamic | |
1654 | linker. */ | |
1655 | if ((need_entry & NEED_STUBREL)) | |
1656 | { | |
1657 | doit = h->stub_reloc_sec != stubreloc; | |
1658 | h->stub_reloc_sec = stubreloc; | |
1659 | } | |
1660 | else | |
1661 | #endif | |
1662 | doit = 1; | |
1663 | ||
1664 | if (doit) | |
1665 | { | |
1666 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
1667 | ||
30667bf3 AM |
1668 | /* Keep track of relocations we have entered for |
1669 | this global symbol, so that we can discard them | |
1670 | later if necessary. */ | |
446f2863 AM |
1671 | if (!info->shared |
1672 | || (h != NULL | |
1673 | && (! IS_ABSOLUTE_RELOC (rtype) | |
1674 | || (need_entry & NEED_STUBREL)))) | |
30667bf3 AM |
1675 | { |
1676 | struct elf32_hppa_dyn_reloc_entry *p; | |
252b5132 | 1677 | |
30667bf3 AM |
1678 | for (p = h->reloc_entries; p != NULL; p = p->next) |
1679 | if (p->section == srel) | |
1680 | break; | |
edd21aca | 1681 | |
30667bf3 AM |
1682 | if (p == NULL) |
1683 | { | |
1684 | p = ((struct elf32_hppa_dyn_reloc_entry *) | |
1685 | bfd_alloc (dynobj, sizeof *p)); | |
1686 | if (p == NULL) | |
1687 | return false; | |
1688 | p->next = h->reloc_entries; | |
1689 | h->reloc_entries = p; | |
1690 | p->section = srel; | |
1691 | p->count = 0; | |
1692 | } | |
edd21aca | 1693 | |
30667bf3 AM |
1694 | /* NEED_STUBREL and NEED_DYNREL are never both |
1695 | set. Leave the count at zero for the | |
1696 | NEED_STUBREL case as we only ever have one | |
1697 | stub reloc per section per symbol, and this | |
446f2863 | 1698 | simplifies code to discard unneeded relocs. */ |
30667bf3 AM |
1699 | if (! (need_entry & NEED_STUBREL)) |
1700 | ++p->count; | |
1701 | } | |
30667bf3 AM |
1702 | } |
1703 | } | |
1704 | } | |
1705 | } | |
edd21aca AM |
1706 | |
1707 | return true; | |
1708 | } | |
1709 | ||
30667bf3 AM |
1710 | /* Return the section that should be marked against garbage collection |
1711 | for a given relocation. */ | |
1712 | ||
1713 | static asection * | |
1714 | elf32_hppa_gc_mark_hook (abfd, info, rel, h, sym) | |
1715 | bfd *abfd; | |
1716 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1717 | Elf_Internal_Rela *rel; | |
1718 | struct elf_link_hash_entry *h; | |
1719 | Elf_Internal_Sym *sym; | |
1720 | { | |
1721 | if (h != NULL) | |
1722 | { | |
1723 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1724 | { | |
1725 | case R_PARISC_GNU_VTINHERIT: | |
1726 | case R_PARISC_GNU_VTENTRY: | |
1727 | break; | |
1728 | ||
1729 | default: | |
1730 | switch (h->root.type) | |
1731 | { | |
1732 | case bfd_link_hash_defined: | |
1733 | case bfd_link_hash_defweak: | |
1734 | return h->root.u.def.section; | |
1735 | ||
1736 | case bfd_link_hash_common: | |
1737 | return h->root.u.c.p->section; | |
1738 | ||
1739 | default: | |
1740 | break; | |
1741 | } | |
1742 | } | |
1743 | } | |
1744 | else | |
1745 | { | |
1746 | if (!(elf_bad_symtab (abfd) | |
1747 | && ELF_ST_BIND (sym->st_info) != STB_LOCAL) | |
1748 | && ! ((sym->st_shndx <= 0 || sym->st_shndx >= SHN_LORESERVE) | |
1749 | && sym->st_shndx != SHN_COMMON)) | |
1750 | { | |
1751 | return bfd_section_from_elf_index (abfd, sym->st_shndx); | |
1752 | } | |
1753 | } | |
1754 | ||
1755 | return NULL; | |
1756 | } | |
1757 | ||
30667bf3 AM |
1758 | /* Update the got and plt entry reference counts for the section being |
1759 | removed. */ | |
edd21aca AM |
1760 | |
1761 | static boolean | |
30667bf3 AM |
1762 | elf32_hppa_gc_sweep_hook (abfd, info, sec, relocs) |
1763 | bfd *abfd; | |
1764 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1765 | asection *sec; | |
1766 | const Elf_Internal_Rela *relocs; | |
edd21aca | 1767 | { |
30667bf3 AM |
1768 | Elf_Internal_Shdr *symtab_hdr; |
1769 | struct elf_link_hash_entry **sym_hashes; | |
1770 | bfd_signed_vma *local_got_refcounts; | |
74d1c347 | 1771 | bfd_signed_vma *local_plt_refcounts; |
30667bf3 AM |
1772 | const Elf_Internal_Rela *rel, *relend; |
1773 | unsigned long r_symndx; | |
1774 | struct elf_link_hash_entry *h; | |
74d1c347 | 1775 | struct elf32_hppa_link_hash_table *hplink; |
30667bf3 | 1776 | bfd *dynobj; |
30667bf3 AM |
1777 | |
1778 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1779 | sym_hashes = elf_sym_hashes (abfd); | |
1780 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
74d1c347 AM |
1781 | local_plt_refcounts = local_got_refcounts; |
1782 | if (local_plt_refcounts != NULL) | |
1783 | local_plt_refcounts += symtab_hdr->sh_info; | |
1784 | hplink = hppa_link_hash_table (info); | |
1785 | dynobj = hplink->root.dynobj; | |
30667bf3 AM |
1786 | if (dynobj == NULL) |
1787 | return true; | |
1788 | ||
30667bf3 AM |
1789 | relend = relocs + sec->reloc_count; |
1790 | for (rel = relocs; rel < relend; rel++) | |
1791 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1792 | { | |
1793 | case R_PARISC_DLTIND14F: | |
1794 | case R_PARISC_DLTIND14R: | |
1795 | case R_PARISC_DLTIND21L: | |
1796 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1797 | if (r_symndx >= symtab_hdr->sh_info) | |
1798 | { | |
1799 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1800 | if (h->got.refcount > 0) | |
4dc86686 | 1801 | h->got.refcount -= 1; |
30667bf3 AM |
1802 | } |
1803 | else if (local_got_refcounts != NULL) | |
1804 | { | |
1805 | if (local_got_refcounts[r_symndx] > 0) | |
4dc86686 | 1806 | local_got_refcounts[r_symndx] -= 1; |
30667bf3 AM |
1807 | } |
1808 | break; | |
edd21aca | 1809 | |
30667bf3 AM |
1810 | case R_PARISC_PCREL12F: |
1811 | case R_PARISC_PCREL17C: | |
1812 | case R_PARISC_PCREL17F: | |
1813 | case R_PARISC_PCREL22F: | |
1814 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1815 | if (r_symndx >= symtab_hdr->sh_info) | |
1816 | { | |
1817 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1818 | if (h->plt.refcount > 0) | |
1819 | h->plt.refcount -= 1; | |
1820 | } | |
1821 | break; | |
edd21aca | 1822 | |
74d1c347 AM |
1823 | case R_PARISC_PLABEL14R: |
1824 | case R_PARISC_PLABEL21L: | |
1825 | case R_PARISC_PLABEL32: | |
1826 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1827 | if (r_symndx >= symtab_hdr->sh_info) | |
1828 | { | |
1829 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1830 | if (h->plt.refcount > 0) | |
1831 | h->plt.refcount -= 1; | |
1832 | } | |
1833 | else if (local_plt_refcounts != NULL) | |
1834 | { | |
1835 | if (local_plt_refcounts[r_symndx] > 0) | |
1836 | local_plt_refcounts[r_symndx] -= 1; | |
1837 | } | |
1838 | break; | |
1839 | ||
30667bf3 AM |
1840 | default: |
1841 | break; | |
1842 | } | |
252b5132 | 1843 | |
252b5132 RH |
1844 | return true; |
1845 | } | |
1846 | ||
74d1c347 AM |
1847 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1848 | plabels. */ | |
1849 | ||
1850 | static void | |
1851 | elf32_hppa_hide_symbol (info, h) | |
1852 | struct bfd_link_info *info ATTRIBUTE_UNUSED; | |
1853 | struct elf_link_hash_entry *h; | |
1854 | { | |
5fba655a L |
1855 | if ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0) |
1856 | h->dynindx = -1; | |
74d1c347 AM |
1857 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel) |
1858 | { | |
1859 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1860 | h->plt.offset = (bfd_vma) -1; | |
1861 | } | |
1862 | } | |
1863 | ||
4dc86686 AM |
1864 | /* This is the condition under which elf32_hppa_finish_dynamic_symbol |
1865 | will be called from elflink.h. If elflink.h doesn't call our | |
1866 | finish_dynamic_symbol routine, we'll need to do something about | |
1867 | initializing any .plt and .got entries in elf32_hppa_relocate_section. */ | |
1868 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
1869 | ((DYN) \ | |
1870 | && ((INFO)->shared \ | |
1871 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
1872 | && ((H)->dynindx != -1 \ | |
1873 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
1874 | ||
30667bf3 AM |
1875 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1876 | regular object. The current definition is in some section of the | |
1877 | dynamic object, but we're not including those sections. We have to | |
1878 | change the definition to something the rest of the link can | |
1879 | understand. */ | |
252b5132 | 1880 | |
30667bf3 AM |
1881 | static boolean |
1882 | elf32_hppa_adjust_dynamic_symbol (info, h) | |
1883 | struct bfd_link_info *info; | |
1884 | struct elf_link_hash_entry *h; | |
252b5132 | 1885 | { |
30667bf3 AM |
1886 | bfd *dynobj; |
1887 | struct elf32_hppa_link_hash_table *hplink; | |
1888 | asection *s; | |
1889 | ||
30667bf3 | 1890 | hplink = hppa_link_hash_table (info); |
74d1c347 | 1891 | dynobj = hplink->root.dynobj; |
30667bf3 AM |
1892 | |
1893 | /* If this is a function, put it in the procedure linkage table. We | |
1894 | will fill in the contents of the procedure linkage table later, | |
1895 | when we know the address of the .got section. */ | |
1896 | if (h->type == STT_FUNC | |
1897 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1898 | { | |
12cca0d2 AM |
1899 | if (!info->shared |
1900 | && h->plt.refcount > 0 | |
1901 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1902 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0) | |
1903 | { | |
1904 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; | |
1905 | } | |
1906 | ||
30667bf3 AM |
1907 | if (h->plt.refcount <= 0 |
1908 | || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1909 | && h->root.type != bfd_link_hash_defweak | |
74d1c347 | 1910 | && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel |
30667bf3 AM |
1911 | && (!info->shared || info->symbolic))) |
1912 | { | |
1913 | /* The .plt entry is not needed when: | |
1914 | a) Garbage collection has removed all references to the | |
1915 | symbol, or | |
1916 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1917 | object, and it's not a weak definition, nor is the symbol |
1918 | used by a plabel relocation. Either this object is the | |
1919 | application or we are doing a shared symbolic link. */ | |
1920 | ||
1921 | /* As a special sop to the hppa ABI, we keep a .plt entry | |
1922 | for functions in sections containing PIC code. */ | |
12cca0d2 AM |
1923 | if (((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call) |
1924 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; | |
30667bf3 AM |
1925 | else |
1926 | { | |
1927 | h->plt.offset = (bfd_vma) -1; | |
1928 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
30667bf3 | 1929 | } |
30667bf3 | 1930 | } |
4dc86686 | 1931 | |
30667bf3 AM |
1932 | return true; |
1933 | } | |
edd21aca | 1934 | |
30667bf3 AM |
1935 | /* If this is a weak symbol, and there is a real definition, the |
1936 | processor independent code will have arranged for us to see the | |
1937 | real definition first, and we can just use the same value. */ | |
1938 | if (h->weakdef != NULL) | |
edd21aca | 1939 | { |
49e9d0d3 AM |
1940 | if (h->weakdef->root.type != bfd_link_hash_defined |
1941 | && h->weakdef->root.type != bfd_link_hash_defweak) | |
1942 | abort (); | |
30667bf3 AM |
1943 | h->root.u.def.section = h->weakdef->root.u.def.section; |
1944 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
1945 | return true; | |
1946 | } | |
edd21aca | 1947 | |
30667bf3 AM |
1948 | /* This is a reference to a symbol defined by a dynamic object which |
1949 | is not a function. */ | |
1950 | ||
1951 | /* If we are creating a shared library, we must presume that the | |
1952 | only references to the symbol are via the global offset table. | |
1953 | For such cases we need not do anything here; the relocations will | |
1954 | be handled correctly by relocate_section. */ | |
1955 | if (info->shared) | |
1956 | return true; | |
1957 | ||
1958 | /* If there are no references to this symbol that do not use the | |
1959 | GOT, we don't need to generate a copy reloc. */ | |
1960 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
1961 | return true; | |
1962 | ||
1963 | /* We must allocate the symbol in our .dynbss section, which will | |
1964 | become part of the .bss section of the executable. There will be | |
1965 | an entry for this symbol in the .dynsym section. The dynamic | |
1966 | object will contain position independent code, so all references | |
1967 | from the dynamic object to this symbol will go through the global | |
1968 | offset table. The dynamic linker will use the .dynsym entry to | |
1969 | determine the address it must put in the global offset table, so | |
1970 | both the dynamic object and the regular object will refer to the | |
1971 | same memory location for the variable. */ | |
1972 | ||
1973 | s = hplink->sdynbss; | |
1974 | ||
1975 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1976 | copy the initial value out of the dynamic object and into the | |
1977 | runtime process image. We need to remember the offset into the | |
1978 | .rela.bss section we are going to use. */ | |
1979 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) | |
1980 | { | |
1981 | asection *srel; | |
1982 | ||
1983 | srel = hplink->srelbss; | |
1984 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
1985 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; | |
edd21aca | 1986 | } |
252b5132 | 1987 | |
30667bf3 AM |
1988 | { |
1989 | /* We need to figure out the alignment required for this symbol. I | |
1990 | have no idea how other ELF linkers handle this. */ | |
1991 | unsigned int power_of_two; | |
1992 | ||
1993 | power_of_two = bfd_log2 (h->size); | |
1994 | if (power_of_two > 3) | |
1995 | power_of_two = 3; | |
1996 | ||
1997 | /* Apply the required alignment. */ | |
1998 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1999 | (bfd_size_type) (1 << power_of_two)); | |
2000 | if (power_of_two > bfd_get_section_alignment (dynobj, s)) | |
2001 | { | |
2002 | if (! bfd_set_section_alignment (dynobj, s, power_of_two)) | |
2003 | return false; | |
2004 | } | |
2005 | } | |
2006 | /* Define the symbol as being at this point in the section. */ | |
2007 | h->root.u.def.section = s; | |
2008 | h->root.u.def.value = s->_raw_size; | |
edd21aca | 2009 | |
30667bf3 AM |
2010 | /* Increment the section size to make room for the symbol. */ |
2011 | s->_raw_size += h->size; | |
252b5132 RH |
2012 | |
2013 | return true; | |
2014 | } | |
2015 | ||
30667bf3 AM |
2016 | /* Called via elf_link_hash_traverse to create .plt entries for an |
2017 | application that uses statically linked PIC functions. Similar to | |
2018 | the first part of elf32_hppa_adjust_dynamic_symbol. */ | |
252b5132 | 2019 | |
30667bf3 AM |
2020 | static boolean |
2021 | hppa_handle_PIC_calls (h, inf) | |
2022 | struct elf_link_hash_entry *h; | |
4dc86686 | 2023 | PTR inf ATTRIBUTE_UNUSED; |
252b5132 | 2024 | { |
30667bf3 AM |
2025 | if (! (h->plt.refcount > 0 |
2026 | && (h->root.type == bfd_link_hash_defined | |
2027 | || h->root.type == bfd_link_hash_defweak) | |
2028 | && (h->root.u.def.section->flags & SEC_HAS_GOT_REF) != 0)) | |
252b5132 | 2029 | { |
30667bf3 AM |
2030 | h->plt.offset = (bfd_vma) -1; |
2031 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2032 | return true; | |
252b5132 RH |
2033 | } |
2034 | ||
74d1c347 | 2035 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
12cca0d2 | 2036 | ((struct elf32_hppa_link_hash_entry *) h)->maybe_pic_call = 1; |
30667bf3 | 2037 | ((struct elf32_hppa_link_hash_entry *) h)->pic_call = 1; |
edd21aca | 2038 | |
4dc86686 AM |
2039 | return true; |
2040 | } | |
2041 | ||
2042 | /* Allocate space in .plt, .got and associated reloc sections for | |
2043 | global syms. */ | |
2044 | ||
2045 | static boolean | |
446f2863 | 2046 | allocate_plt_and_got_and_discard_relocs (h, inf) |
4dc86686 AM |
2047 | struct elf_link_hash_entry *h; |
2048 | PTR inf; | |
2049 | { | |
2050 | struct bfd_link_info *info; | |
2051 | struct elf32_hppa_link_hash_table *hplink; | |
2052 | asection *s; | |
446f2863 | 2053 | struct elf32_hppa_link_hash_entry *eh; |
4dc86686 | 2054 | |
73a74a62 AM |
2055 | if (h->root.type == bfd_link_hash_indirect |
2056 | || h->root.type == bfd_link_hash_warning) | |
2057 | return true; | |
2058 | ||
30667bf3 | 2059 | info = (struct bfd_link_info *) inf; |
30667bf3 | 2060 | hplink = hppa_link_hash_table (info); |
4dc86686 AM |
2061 | if ((hplink->root.dynamic_sections_created |
2062 | && h->plt.refcount > 0) | |
2063 | || ((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2064 | { | |
446f2863 AM |
2065 | /* Make sure this symbol is output as a dynamic symbol. |
2066 | Undefined weak syms won't yet be marked as dynamic. */ | |
2067 | if (h->dynindx == -1 | |
2068 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2069 | && h->type != STT_PARISC_MILLI | |
2070 | && !((struct elf32_hppa_link_hash_entry *) h)->pic_call) | |
2071 | { | |
2072 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2073 | return false; | |
2074 | } | |
2075 | ||
4dc86686 AM |
2076 | /* Make an entry in the .plt section. */ |
2077 | s = hplink->splt; | |
2078 | h->plt.offset = s->_raw_size; | |
2079 | if (PLABEL_PLT_ENTRY_SIZE != PLT_ENTRY_SIZE | |
2080 | && ((struct elf32_hppa_link_hash_entry *) h)->plabel | |
2081 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
2082 | { | |
2083 | /* Add some extra space for the dynamic linker to use. */ | |
2084 | s->_raw_size += PLABEL_PLT_ENTRY_SIZE; | |
2085 | } | |
2086 | else | |
2087 | s->_raw_size += PLT_ENTRY_SIZE; | |
2088 | ||
2089 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call | |
2090 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
2091 | { | |
2092 | /* We also need to make an entry in the .rela.plt section. */ | |
2093 | hplink->srelplt->_raw_size += sizeof (Elf32_External_Rela); | |
2094 | hplink->need_plt_stub = 1; | |
2095 | } | |
2096 | } | |
2097 | else | |
2098 | { | |
2099 | h->plt.offset = (bfd_vma) -1; | |
2100 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
2101 | } | |
edd21aca | 2102 | |
4dc86686 AM |
2103 | if (h->got.refcount > 0) |
2104 | { | |
2105 | boolean dyn; | |
2106 | ||
446f2863 AM |
2107 | /* Make sure this symbol is output as a dynamic symbol. |
2108 | Undefined weak syms won't yet be marked as dynamic. */ | |
2109 | if (h->dynindx == -1 | |
2110 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2111 | && h->type != STT_PARISC_MILLI) | |
2112 | { | |
2113 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2114 | return false; | |
2115 | } | |
2116 | ||
4dc86686 AM |
2117 | s = hplink->sgot; |
2118 | h->got.offset = s->_raw_size; | |
2119 | s->_raw_size += GOT_ENTRY_SIZE; | |
2120 | dyn = hplink->root.dynamic_sections_created; | |
2121 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, h)) | |
2122 | hplink->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
2123 | } | |
2124 | else | |
2125 | h->got.offset = (bfd_vma) -1; | |
30667bf3 | 2126 | |
446f2863 AM |
2127 | /* If this is a -Bsymbolic shared link, then we need to discard all |
2128 | space allocated for dynamic relocs against symbols defined in a | |
2129 | regular object. For the normal shared case, discard space for | |
2130 | relocs that have become local due to symbol visibility changes. | |
2131 | For the non-shared case, discard space for symbols which turn out | |
2132 | to need copy relocs or are not dynamic. We also need to lose | |
2133 | relocs we've allocated for long branch stubs if we know we won't | |
2134 | be generating a stub. */ | |
30667bf3 | 2135 | |
446f2863 AM |
2136 | eh = (struct elf32_hppa_link_hash_entry *) h; |
2137 | if (eh->reloc_entries == NULL) | |
2138 | return true; | |
30667bf3 | 2139 | |
446f2863 AM |
2140 | /* First handle the non-shared case. */ |
2141 | if (!info->shared | |
2142 | && (h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
2143 | && ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
2144 | || h->root.type == bfd_link_hash_undefweak | |
2145 | || h->root.type == bfd_link_hash_undefined)) | |
2146 | { | |
2147 | /* Make sure this symbol is output as a dynamic symbol. | |
2148 | Undefined weak syms won't yet be marked as dynamic. */ | |
2149 | if (h->dynindx == -1 | |
2150 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
2151 | && h->type != STT_PARISC_MILLI) | |
2152 | { | |
2153 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
2154 | return false; | |
2155 | } | |
30667bf3 | 2156 | |
446f2863 AM |
2157 | /* If that succeeded, we know we'll be keeping all the relocs. */ |
2158 | if (h->dynindx != -1) | |
2159 | return true; | |
2160 | } | |
30667bf3 | 2161 | |
74d1c347 | 2162 | #if ! LONG_BRANCH_PIC_IN_SHLIB && LONG_BRANCH_VIA_PLT |
30667bf3 | 2163 | /* Handle the stub reloc case. If we have a plt entry for the |
446f2863 | 2164 | function, we won't be needing long branch stubs. c->count will |
30667bf3 AM |
2165 | only be zero for stub relocs, which provides a handy way of |
2166 | flagging these relocs, and means we need do nothing special for | |
2167 | the forced local and symbolic link case. */ | |
2168 | if (eh->stub_reloc_sec != NULL | |
2169 | && eh->elf.plt.offset != (bfd_vma) -1) | |
2170 | { | |
446f2863 AM |
2171 | struct elf32_hppa_dyn_reloc_entry *c; |
2172 | ||
2173 | for (c = eh->reloc_entries; c != NULL; c = c->next) | |
2174 | if (c->count == 0) | |
2175 | c->section->_raw_size -= sizeof (Elf32_External_Rela); | |
30667bf3 AM |
2176 | } |
2177 | #endif | |
2178 | ||
446f2863 AM |
2179 | /* Discard any relocs in the non-shared case. For the shared case, |
2180 | if a symbol has been forced local or we have found a regular | |
30667bf3 AM |
2181 | definition for the symbolic link case, then we won't be needing |
2182 | any relocs. */ | |
446f2863 | 2183 | if (!info->shared |
30667bf3 | 2184 | || ((eh->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 |
446f2863 AM |
2185 | && ((eh->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 |
2186 | || info->symbolic))) | |
30667bf3 | 2187 | { |
446f2863 AM |
2188 | struct elf32_hppa_dyn_reloc_entry *c; |
2189 | ||
2190 | for (c = eh->reloc_entries; c != NULL; c = c->next) | |
2191 | c->section->_raw_size -= c->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2192 | } |
30667bf3 AM |
2193 | |
2194 | return true; | |
2195 | } | |
30667bf3 | 2196 | |
d5c73c2f AM |
2197 | /* This function is called via elf_link_hash_traverse to force |
2198 | millicode symbols local so they do not end up as globals in the | |
2199 | dynamic symbol table. We ought to be able to do this in | |
2200 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2201 | for all dynamic symbols. Arguably, this is a bug in | |
2202 | elf_adjust_dynamic_symbol. */ | |
2203 | ||
2204 | static boolean | |
2205 | clobber_millicode_symbols (h, info) | |
2206 | struct elf_link_hash_entry *h; | |
2207 | struct bfd_link_info *info; | |
2208 | { | |
8dea1268 AM |
2209 | /* We only want to remove these from the dynamic symbol table. |
2210 | Therefore we do not leave ELF_LINK_FORCED_LOCAL set. */ | |
d5c73c2f | 2211 | if (h->type == STT_PARISC_MILLI) |
e0522e89 AM |
2212 | { |
2213 | unsigned short oldflags = h->elf_link_hash_flags; | |
2214 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL; | |
2215 | elf32_hppa_hide_symbol (info, h); | |
2216 | h->elf_link_hash_flags &= ~ELF_LINK_FORCED_LOCAL; | |
2217 | h->elf_link_hash_flags |= oldflags & ELF_LINK_FORCED_LOCAL; | |
2218 | } | |
d5c73c2f AM |
2219 | return true; |
2220 | } | |
2221 | ||
30667bf3 AM |
2222 | /* Set the sizes of the dynamic sections. */ |
2223 | ||
2224 | static boolean | |
2225 | elf32_hppa_size_dynamic_sections (output_bfd, info) | |
2226 | bfd *output_bfd; | |
2227 | struct bfd_link_info *info; | |
2228 | { | |
2229 | struct elf32_hppa_link_hash_table *hplink; | |
2230 | bfd *dynobj; | |
68fb2e56 | 2231 | bfd *i; |
30667bf3 AM |
2232 | asection *s; |
2233 | boolean relocs; | |
2234 | boolean reltext; | |
2235 | ||
2236 | hplink = hppa_link_hash_table (info); | |
74d1c347 | 2237 | dynobj = hplink->root.dynobj; |
49e9d0d3 AM |
2238 | if (dynobj == NULL) |
2239 | abort (); | |
30667bf3 | 2240 | |
74d1c347 | 2241 | if (hplink->root.dynamic_sections_created) |
30667bf3 AM |
2242 | { |
2243 | /* Set the contents of the .interp section to the interpreter. */ | |
2244 | if (! info->shared) | |
2245 | { | |
2246 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
49e9d0d3 AM |
2247 | if (s == NULL) |
2248 | abort (); | |
30667bf3 AM |
2249 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; |
2250 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2251 | } | |
74d1c347 | 2252 | |
d5c73c2f AM |
2253 | /* Force millicode symbols local. */ |
2254 | elf_link_hash_traverse (&hplink->root, | |
2255 | clobber_millicode_symbols, | |
2256 | info); | |
68fb2e56 AM |
2257 | } |
2258 | else | |
2259 | { | |
2260 | /* Run through the function symbols, looking for any that are | |
2261 | PIC, and allocate space for the necessary .plt entries so | |
2262 | that %r19 will be set up. */ | |
2263 | if (! info->shared) | |
2264 | elf_link_hash_traverse (&hplink->root, | |
2265 | hppa_handle_PIC_calls, | |
2266 | info); | |
2267 | } | |
d5c73c2f | 2268 | |
68fb2e56 AM |
2269 | /* Set up .got and .plt offsets for local syms. */ |
2270 | for (i = info->input_bfds; i; i = i->link_next) | |
2271 | { | |
2272 | bfd_signed_vma *local_got; | |
2273 | bfd_signed_vma *end_local_got; | |
2274 | bfd_signed_vma *local_plt; | |
2275 | bfd_signed_vma *end_local_plt; | |
2276 | bfd_size_type locsymcount; | |
2277 | Elf_Internal_Shdr *symtab_hdr; | |
2278 | asection *srel; | |
74d1c347 | 2279 | |
68fb2e56 AM |
2280 | if (bfd_get_flavour (i) != bfd_target_elf_flavour) |
2281 | continue; | |
4dc86686 | 2282 | |
68fb2e56 AM |
2283 | local_got = elf_local_got_refcounts (i); |
2284 | if (!local_got) | |
2285 | continue; | |
74d1c347 | 2286 | |
68fb2e56 AM |
2287 | symtab_hdr = &elf_tdata (i)->symtab_hdr; |
2288 | locsymcount = symtab_hdr->sh_info; | |
2289 | end_local_got = local_got + locsymcount; | |
2290 | s = hplink->sgot; | |
2291 | srel = hplink->srelgot; | |
2292 | for (; local_got < end_local_got; ++local_got) | |
2293 | { | |
2294 | if (*local_got > 0) | |
4dc86686 | 2295 | { |
68fb2e56 AM |
2296 | *local_got = s->_raw_size; |
2297 | s->_raw_size += GOT_ENTRY_SIZE; | |
2298 | if (info->shared) | |
2299 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
4dc86686 | 2300 | } |
68fb2e56 AM |
2301 | else |
2302 | *local_got = (bfd_vma) -1; | |
2303 | } | |
74d1c347 | 2304 | |
68fb2e56 AM |
2305 | local_plt = end_local_got; |
2306 | end_local_plt = local_plt + locsymcount; | |
2307 | if (! hplink->root.dynamic_sections_created) | |
2308 | { | |
2309 | /* Won't be used, but be safe. */ | |
2310 | for (; local_plt < end_local_plt; ++local_plt) | |
2311 | *local_plt = (bfd_vma) -1; | |
2312 | } | |
2313 | else | |
2314 | { | |
4dc86686 AM |
2315 | s = hplink->splt; |
2316 | srel = hplink->srelplt; | |
74d1c347 AM |
2317 | for (; local_plt < end_local_plt; ++local_plt) |
2318 | { | |
2319 | if (*local_plt > 0) | |
2320 | { | |
74d1c347 AM |
2321 | *local_plt = s->_raw_size; |
2322 | s->_raw_size += PLT_ENTRY_SIZE; | |
2323 | if (info->shared) | |
4dc86686 | 2324 | srel->_raw_size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2325 | } |
2326 | else | |
2327 | *local_plt = (bfd_vma) -1; | |
2328 | } | |
2329 | } | |
30667bf3 | 2330 | } |
30667bf3 | 2331 | |
446f2863 AM |
2332 | /* Allocate global sym .plt and .got entries. Also discard all |
2333 | unneeded relocs. */ | |
4dc86686 | 2334 | elf_link_hash_traverse (&hplink->root, |
446f2863 AM |
2335 | allocate_plt_and_got_and_discard_relocs, |
2336 | (PTR) info); | |
30667bf3 AM |
2337 | |
2338 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2339 | determined the sizes of the various dynamic sections. Allocate | |
2340 | memory for them. */ | |
2341 | relocs = false; | |
2342 | reltext = false; | |
2343 | for (s = dynobj->sections; s != NULL; s = s->next) | |
2344 | { | |
30667bf3 AM |
2345 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2346 | continue; | |
2347 | ||
68fb2e56 AM |
2348 | if (s == hplink->splt) |
2349 | { | |
2350 | if (hplink->need_plt_stub) | |
2351 | { | |
2352 | /* Make space for the plt stub at the end of the .plt | |
2353 | section. We want this stub right at the end, up | |
2354 | against the .got section. */ | |
2355 | int gotalign = bfd_section_alignment (dynobj, hplink->sgot); | |
2356 | int pltalign = bfd_section_alignment (dynobj, s); | |
2357 | bfd_size_type mask; | |
30667bf3 | 2358 | |
68fb2e56 AM |
2359 | if (gotalign > pltalign) |
2360 | bfd_set_section_alignment (dynobj, s, gotalign); | |
2361 | mask = ((bfd_size_type) 1 << gotalign) - 1; | |
2362 | s->_raw_size = (s->_raw_size + sizeof (plt_stub) + mask) & ~mask; | |
2363 | } | |
2364 | } | |
2365 | else if (s == hplink->sgot) | |
2366 | ; | |
2367 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) | |
30667bf3 AM |
2368 | { |
2369 | if (s->_raw_size != 0) | |
2370 | { | |
2371 | asection *target; | |
47d89dba | 2372 | const char *outname; |
30667bf3 AM |
2373 | |
2374 | /* Remember whether there are any reloc sections other | |
2375 | than .rela.plt. */ | |
68fb2e56 | 2376 | if (s != hplink->srelplt) |
47d89dba AM |
2377 | relocs = true; |
2378 | ||
2379 | /* If this relocation section applies to a read only | |
2380 | section, then we probably need a DT_TEXTREL entry. */ | |
2381 | outname = bfd_get_section_name (output_bfd, | |
2382 | s->output_section); | |
2383 | target = bfd_get_section_by_name (output_bfd, outname + 5); | |
2384 | if (target != NULL | |
2385 | && (target->flags & SEC_READONLY) != 0 | |
2386 | && (target->flags & SEC_ALLOC) != 0) | |
2387 | reltext = true; | |
30667bf3 AM |
2388 | |
2389 | /* We use the reloc_count field as a counter if we need | |
2390 | to copy relocs into the output file. */ | |
2391 | s->reloc_count = 0; | |
2392 | } | |
2393 | } | |
30667bf3 AM |
2394 | else |
2395 | { | |
2396 | /* It's not one of our sections, so don't allocate space. */ | |
2397 | continue; | |
2398 | } | |
2399 | ||
2400 | if (s->_raw_size == 0) | |
2401 | { | |
2402 | /* If we don't need this section, strip it from the | |
2403 | output file. This is mostly to handle .rela.bss and | |
2404 | .rela.plt. We must create both sections in | |
2405 | create_dynamic_sections, because they must be created | |
2406 | before the linker maps input sections to output | |
2407 | sections. The linker does that before | |
2408 | adjust_dynamic_symbol is called, and it is that | |
2409 | function which decides whether anything needs to go | |
2410 | into these sections. */ | |
2411 | _bfd_strip_section_from_output (info, s); | |
2412 | continue; | |
2413 | } | |
2414 | ||
2415 | /* Allocate memory for the section contents. Zero it, because | |
2416 | we may not fill in all the reloc sections. */ | |
2417 | s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->_raw_size); | |
2418 | if (s->contents == NULL && s->_raw_size != 0) | |
2419 | return false; | |
2420 | } | |
2421 | ||
74d1c347 | 2422 | if (hplink->root.dynamic_sections_created) |
30667bf3 AM |
2423 | { |
2424 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2425 | actually has nothing to do with the PLT, it is how we | |
2426 | communicate the LTP value of a load module to the dynamic | |
2427 | linker. */ | |
2428 | if (! bfd_elf32_add_dynamic_entry (info, DT_PLTGOT, 0)) | |
2429 | return false; | |
2430 | ||
2431 | /* Add some entries to the .dynamic section. We fill in the | |
2432 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2433 | must add the entries now so that we get the correct size for | |
2434 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2435 | dynamic linker and used by the debugger. */ | |
2436 | if (! info->shared) | |
2437 | { | |
2438 | if (! bfd_elf32_add_dynamic_entry (info, DT_DEBUG, 0)) | |
2439 | return false; | |
2440 | } | |
2441 | ||
2442 | if (hplink->srelplt->_raw_size != 0) | |
2443 | { | |
2444 | if (! bfd_elf32_add_dynamic_entry (info, DT_PLTRELSZ, 0) | |
2445 | || ! bfd_elf32_add_dynamic_entry (info, DT_PLTREL, DT_RELA) | |
2446 | || ! bfd_elf32_add_dynamic_entry (info, DT_JMPREL, 0)) | |
2447 | return false; | |
2448 | } | |
2449 | ||
2450 | if (relocs) | |
2451 | { | |
2452 | if (! bfd_elf32_add_dynamic_entry (info, DT_RELA, 0) | |
2453 | || ! bfd_elf32_add_dynamic_entry (info, DT_RELASZ, 0) | |
2454 | || ! bfd_elf32_add_dynamic_entry (info, DT_RELAENT, | |
2455 | sizeof (Elf32_External_Rela))) | |
2456 | return false; | |
2457 | } | |
2458 | ||
2459 | if (reltext) | |
2460 | { | |
2461 | if (! bfd_elf32_add_dynamic_entry (info, DT_TEXTREL, 0)) | |
2462 | return false; | |
2463 | info->flags |= DF_TEXTREL; | |
2464 | } | |
2465 | } | |
2466 | ||
2467 | return true; | |
2468 | } | |
2469 | ||
30667bf3 AM |
2470 | /* External entry points for sizing and building linker stubs. */ |
2471 | ||
2472 | /* Determine and set the size of the stub section for a final link. | |
2473 | ||
2474 | The basic idea here is to examine all the relocations looking for | |
2475 | PC-relative calls to a target that is unreachable with a "bl" | |
2476 | instruction. */ | |
2477 | ||
2478 | boolean | |
47d89dba | 2479 | elf32_hppa_size_stubs (output_bfd, stub_bfd, info, multi_subspace, group_size, |
30667bf3 | 2480 | add_stub_section, layout_sections_again) |
25f72752 | 2481 | bfd *output_bfd; |
30667bf3 | 2482 | bfd *stub_bfd; |
30667bf3 | 2483 | struct bfd_link_info *info; |
25f72752 | 2484 | boolean multi_subspace; |
47d89dba | 2485 | bfd_signed_vma group_size; |
30667bf3 AM |
2486 | asection * (*add_stub_section) PARAMS ((const char *, asection *)); |
2487 | void (*layout_sections_again) PARAMS ((void)); | |
2488 | { | |
2489 | bfd *input_bfd; | |
2490 | asection *section; | |
25f72752 | 2491 | asection **input_list, **list; |
30667bf3 | 2492 | Elf_Internal_Sym *local_syms, **all_local_syms; |
25f72752 AM |
2493 | unsigned int bfd_indx, bfd_count; |
2494 | int top_id, top_index; | |
30667bf3 | 2495 | struct elf32_hppa_link_hash_table *hplink; |
47d89dba AM |
2496 | bfd_size_type stub_group_size; |
2497 | boolean stubs_always_before_branch; | |
30667bf3 | 2498 | boolean stub_changed = 0; |
25f72752 | 2499 | boolean ret = 0; |
30667bf3 AM |
2500 | |
2501 | hplink = hppa_link_hash_table (info); | |
2502 | ||
2503 | /* Stash our params away. */ | |
2504 | hplink->stub_bfd = stub_bfd; | |
2505 | hplink->multi_subspace = multi_subspace; | |
2506 | hplink->add_stub_section = add_stub_section; | |
2507 | hplink->layout_sections_again = layout_sections_again; | |
47d89dba AM |
2508 | stubs_always_before_branch = group_size < 0; |
2509 | if (group_size < 0) | |
2510 | stub_group_size = -group_size; | |
2511 | else | |
2512 | stub_group_size = group_size; | |
2513 | if (stub_group_size == 1) | |
2514 | { | |
2515 | /* Default values. */ | |
2516 | stub_group_size = 8000000; | |
2517 | if (hplink->has_17bit_branch || hplink->multi_subspace) | |
2518 | stub_group_size = 250000; | |
2519 | if (hplink->has_12bit_branch) | |
2520 | stub_group_size = 7812; | |
2521 | } | |
30667bf3 | 2522 | |
1badb539 AM |
2523 | /* Count the number of input BFDs and find the top input section id. */ |
2524 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2525 | input_bfd != NULL; |
2526 | input_bfd = input_bfd->link_next) | |
2527 | { | |
2528 | bfd_count += 1; | |
25f72752 AM |
2529 | for (section = input_bfd->sections; |
2530 | section != NULL; | |
2531 | section = section->next) | |
2532 | { | |
2533 | if (top_id < section->id) | |
2534 | top_id = section->id; | |
2535 | } | |
30667bf3 AM |
2536 | } |
2537 | ||
25f72752 AM |
2538 | hplink->stub_group |
2539 | = (struct map_stub *) bfd_zmalloc (sizeof (struct map_stub) * (top_id + 1)); | |
2540 | if (hplink->stub_group == NULL) | |
30667bf3 AM |
2541 | return false; |
2542 | ||
1badb539 AM |
2543 | /* Make a list of input sections for each output section included in |
2544 | the link. | |
2545 | ||
2546 | We can't use output_bfd->section_count here to find the top output | |
2547 | section index as some sections may have been removed, and | |
2548 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
2549 | for (section = output_bfd->sections, top_index = 0; | |
2550 | section != NULL; | |
2551 | section = section->next) | |
2552 | { | |
2553 | if (top_index < section->index) | |
2554 | top_index = section->index; | |
2555 | } | |
2556 | ||
25f72752 | 2557 | input_list |
1badb539 | 2558 | = (asection **) bfd_malloc (sizeof (asection *) * (top_index + 1)); |
25f72752 AM |
2559 | if (input_list == NULL) |
2560 | return false; | |
2561 | ||
1badb539 AM |
2562 | /* For sections we aren't interested in, mark their entries with a |
2563 | value we can check later. */ | |
2564 | list = input_list + top_index; | |
2565 | do | |
2566 | *list = bfd_abs_section_ptr; | |
2567 | while (list-- != input_list); | |
2568 | ||
2569 | for (section = output_bfd->sections; | |
2570 | section != NULL; | |
2571 | section = section->next) | |
2572 | { | |
47d89dba | 2573 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2574 | input_list[section->index] = NULL; |
2575 | } | |
2576 | ||
2577 | /* Now actually build the lists. */ | |
25f72752 AM |
2578 | for (input_bfd = info->input_bfds; |
2579 | input_bfd != NULL; | |
2580 | input_bfd = input_bfd->link_next) | |
2581 | { | |
2582 | for (section = input_bfd->sections; | |
2583 | section != NULL; | |
2584 | section = section->next) | |
2585 | { | |
2586 | if (section->output_section != NULL | |
1badb539 AM |
2587 | && section->output_section->owner == output_bfd |
2588 | && section->output_section->index <= top_index) | |
25f72752 AM |
2589 | { |
2590 | list = input_list + section->output_section->index; | |
1badb539 AM |
2591 | if (*list != bfd_abs_section_ptr) |
2592 | { | |
2593 | /* Steal the link_sec pointer for our list. */ | |
25f72752 | 2594 | #define PREV_SEC(sec) (hplink->stub_group[(sec)->id].link_sec) |
1badb539 AM |
2595 | /* This happens to make the list in reverse order, |
2596 | which is what we want. */ | |
2597 | PREV_SEC (section) = *list; | |
2598 | *list = section; | |
2599 | } | |
25f72752 AM |
2600 | } |
2601 | } | |
2602 | } | |
2603 | ||
2604 | /* See whether we can group stub sections together. Grouping stub | |
2605 | sections may result in fewer stubs. More importantly, we need to | |
2606 | put all .init* and .fini* stubs at the beginning of the .init or | |
2607 | .fini output sections respectively, because glibc splits the | |
2608 | _init and _fini functions into multiple parts. Putting a stub in | |
2609 | the middle of a function is not a good idea. */ | |
a017a724 | 2610 | list = input_list + top_index; |
1badb539 | 2611 | do |
25f72752 AM |
2612 | { |
2613 | asection *tail = *list; | |
1badb539 AM |
2614 | if (tail == bfd_abs_section_ptr) |
2615 | continue; | |
25f72752 AM |
2616 | while (tail != NULL) |
2617 | { | |
2618 | asection *curr; | |
2619 | asection *prev; | |
2620 | bfd_size_type total; | |
2621 | ||
2622 | curr = tail; | |
2623 | if (tail->_cooked_size) | |
2624 | total = tail->_cooked_size; | |
2625 | else | |
2626 | total = tail->_raw_size; | |
2627 | while ((prev = PREV_SEC (curr)) != NULL | |
2628 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2629 | < stub_group_size)) |
25f72752 AM |
2630 | curr = prev; |
2631 | ||
2632 | /* OK, the size from the start of CURR to the end is less | |
2633 | than 250000 bytes and thus can be handled by one stub | |
2634 | section. (or the tail section is itself larger than | |
2635 | 250000 bytes, in which case we may be toast.) | |
2636 | We should really be keeping track of the total size of | |
2637 | stubs added here, as stubs contribute to the final output | |
2638 | section size. That's a little tricky, and this way will | |
2639 | only break if stubs added total more than 12144 bytes, or | |
2640 | 1518 long branch stubs. It seems unlikely for more than | |
2641 | 1518 different functions to be called, especially from | |
2642 | code only 250000 bytes long. */ | |
2643 | do | |
2644 | { | |
2645 | prev = PREV_SEC (tail); | |
2646 | /* Set up this stub group. */ | |
2647 | hplink->stub_group[tail->id].link_sec = curr; | |
2648 | } | |
2649 | while (tail != curr && (tail = prev) != NULL); | |
2650 | ||
2651 | /* But wait, there's more! Input sections up to 250000 | |
2652 | bytes before the stub section can be handled by it too. */ | |
47d89dba | 2653 | if (!stubs_always_before_branch) |
25f72752 | 2654 | { |
47d89dba AM |
2655 | total = 0; |
2656 | while (prev != NULL | |
2657 | && ((total += tail->output_offset - prev->output_offset) | |
2658 | < stub_group_size)) | |
2659 | { | |
2660 | tail = prev; | |
2661 | prev = PREV_SEC (tail); | |
2662 | hplink->stub_group[tail->id].link_sec = curr; | |
2663 | } | |
25f72752 AM |
2664 | } |
2665 | tail = prev; | |
2666 | } | |
2667 | } | |
1badb539 | 2668 | while (list-- != input_list); |
25f72752 | 2669 | free (input_list); |
1badb539 | 2670 | #undef PREV_SEC |
30667bf3 AM |
2671 | |
2672 | /* We want to read in symbol extension records only once. To do this | |
2673 | we need to read in the local symbols in parallel and save them for | |
2674 | later use; so hold pointers to the local symbols in an array. */ | |
2675 | all_local_syms | |
2676 | = (Elf_Internal_Sym **) bfd_zmalloc (sizeof (Elf_Internal_Sym *) | |
2677 | * bfd_count); | |
2678 | if (all_local_syms == NULL) | |
25f72752 | 2679 | return false; |
30667bf3 AM |
2680 | |
2681 | /* Walk over all the input BFDs, swapping in local symbols. | |
2682 | If we are creating a shared library, create hash entries for the | |
2683 | export stubs. */ | |
25f72752 | 2684 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2685 | input_bfd != NULL; |
25f72752 | 2686 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2687 | { |
2688 | Elf_Internal_Shdr *symtab_hdr; | |
2689 | Elf_Internal_Sym *isym; | |
25f72752 | 2690 | Elf32_External_Sym *ext_syms, *esym, *end_sy; |
edd21aca | 2691 | |
252b5132 RH |
2692 | /* We'll need the symbol table in a second. */ |
2693 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2694 | if (symtab_hdr->sh_info == 0) | |
2695 | continue; | |
2696 | ||
edd21aca AM |
2697 | /* We need an array of the local symbols attached to the input bfd. |
2698 | Unfortunately, we're going to have to read & swap them in. */ | |
2699 | local_syms = (Elf_Internal_Sym *) | |
2700 | bfd_malloc (symtab_hdr->sh_info * sizeof (Elf_Internal_Sym)); | |
2701 | if (local_syms == NULL) | |
2702 | { | |
2703 | goto error_ret_free_local; | |
2704 | } | |
25f72752 | 2705 | all_local_syms[bfd_indx] = local_syms; |
edd21aca AM |
2706 | ext_syms = (Elf32_External_Sym *) |
2707 | bfd_malloc (symtab_hdr->sh_info * sizeof (Elf32_External_Sym)); | |
2708 | if (ext_syms == NULL) | |
2709 | { | |
2710 | goto error_ret_free_local; | |
2711 | } | |
2712 | ||
2713 | if (bfd_seek (input_bfd, symtab_hdr->sh_offset, SEEK_SET) != 0 | |
30667bf3 | 2714 | || (bfd_read (ext_syms, 1, |
edd21aca AM |
2715 | (symtab_hdr->sh_info * sizeof (Elf32_External_Sym)), |
2716 | input_bfd) | |
2717 | != (symtab_hdr->sh_info * sizeof (Elf32_External_Sym)))) | |
2718 | { | |
2719 | free (ext_syms); | |
2720 | goto error_ret_free_local; | |
2721 | } | |
2722 | ||
2723 | /* Swap the local symbols in. */ | |
2724 | isym = local_syms; | |
2725 | esym = ext_syms; | |
25f72752 | 2726 | for (end_sy = esym + symtab_hdr->sh_info; esym < end_sy; esym++, isym++) |
edd21aca AM |
2727 | bfd_elf32_swap_symbol_in (input_bfd, esym, isym); |
2728 | ||
2729 | /* Now we can free the external symbols. */ | |
2730 | free (ext_syms); | |
edd21aca | 2731 | |
d5c73c2f | 2732 | #if ! LONG_BRANCH_PIC_IN_SHLIB |
25f72752 AM |
2733 | /* If this is a shared link, find all the stub reloc sections. */ |
2734 | if (info->shared) | |
2735 | for (section = input_bfd->sections; | |
2736 | section != NULL; | |
2737 | section = section->next) | |
2738 | { | |
2739 | char *name; | |
2740 | asection *reloc_sec; | |
d5c73c2f | 2741 | |
25f72752 AM |
2742 | name = bfd_malloc (strlen (section->name) |
2743 | + sizeof STUB_SUFFIX | |
2744 | + 5); | |
2745 | if (name == NULL) | |
2746 | return false; | |
2747 | sprintf (name, ".rela%s%s", section->name, STUB_SUFFIX); | |
2748 | reloc_sec = bfd_get_section_by_name (hplink->root.dynobj, name); | |
2749 | hplink->stub_group[section->id].reloc_sec = reloc_sec; | |
2750 | free (name); | |
2751 | } | |
d5c73c2f | 2752 | #endif |
d5c73c2f | 2753 | |
30667bf3 AM |
2754 | if (info->shared && hplink->multi_subspace) |
2755 | { | |
25f72752 AM |
2756 | struct elf_link_hash_entry **sym_hashes; |
2757 | struct elf_link_hash_entry **end_hashes; | |
30667bf3 AM |
2758 | unsigned int symcount; |
2759 | ||
2760 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2761 | - symtab_hdr->sh_info); | |
25f72752 AM |
2762 | sym_hashes = elf_sym_hashes (input_bfd); |
2763 | end_hashes = sym_hashes + symcount; | |
30667bf3 AM |
2764 | |
2765 | /* Look through the global syms for functions; We need to | |
2766 | build export stubs for all globally visible functions. */ | |
25f72752 | 2767 | for (; sym_hashes < end_hashes; sym_hashes++) |
30667bf3 AM |
2768 | { |
2769 | struct elf32_hppa_link_hash_entry *hash; | |
2770 | ||
25f72752 | 2771 | hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes; |
30667bf3 AM |
2772 | |
2773 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2774 | || hash->elf.root.type == bfd_link_hash_warning) | |
2775 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2776 | hash->elf.root.u.i.link); | |
2777 | ||
2778 | /* At this point in the link, undefined syms have been | |
2779 | resolved, so we need to check that the symbol was | |
2780 | defined in this BFD. */ | |
2781 | if ((hash->elf.root.type == bfd_link_hash_defined | |
2782 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2783 | && hash->elf.type == STT_FUNC | |
2784 | && hash->elf.root.u.def.section->output_section != NULL | |
25f72752 AM |
2785 | && (hash->elf.root.u.def.section->output_section->owner |
2786 | == output_bfd) | |
30667bf3 AM |
2787 | && hash->elf.root.u.def.section->owner == input_bfd |
2788 | && (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
2789 | && !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) | |
2790 | && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT) | |
2791 | { | |
2792 | asection *sec; | |
2793 | const char *stub_name; | |
2794 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2795 | ||
2796 | sec = hash->elf.root.u.def.section; | |
2797 | stub_name = hash->elf.root.root.string; | |
2798 | stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table, | |
2799 | stub_name, | |
2800 | false, false); | |
2801 | if (stub_entry == NULL) | |
2802 | { | |
25f72752 | 2803 | stub_entry = hppa_add_stub (stub_name, sec, hplink); |
30667bf3 AM |
2804 | if (!stub_entry) |
2805 | goto error_ret_free_local; | |
2806 | ||
2807 | stub_entry->target_value = hash->elf.root.u.def.value; | |
2808 | stub_entry->target_section = hash->elf.root.u.def.section; | |
2809 | stub_entry->stub_type = hppa_stub_export; | |
2810 | stub_entry->h = hash; | |
2811 | stub_changed = 1; | |
2812 | } | |
2813 | else | |
2814 | { | |
2815 | (*_bfd_error_handler) (_("%s: duplicate export stub %s"), | |
2816 | bfd_get_filename (input_bfd), | |
2817 | stub_name); | |
2818 | } | |
2819 | } | |
2820 | } | |
30667bf3 AM |
2821 | } |
2822 | } | |
edd21aca AM |
2823 | |
2824 | while (1) | |
2825 | { | |
30667bf3 AM |
2826 | asection *stub_sec; |
2827 | ||
25f72752 | 2828 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2829 | input_bfd != NULL; |
25f72752 | 2830 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2831 | { |
2832 | Elf_Internal_Shdr *symtab_hdr; | |
2833 | ||
2834 | /* We'll need the symbol table in a second. */ | |
2835 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2836 | if (symtab_hdr->sh_info == 0) | |
2837 | continue; | |
2838 | ||
25f72752 | 2839 | local_syms = all_local_syms[bfd_indx]; |
30667bf3 AM |
2840 | |
2841 | /* Walk over each section attached to the input bfd. */ | |
2842 | for (section = input_bfd->sections; | |
2843 | section != NULL; | |
25f72752 | 2844 | section = section->next) |
30667bf3 AM |
2845 | { |
2846 | Elf_Internal_Shdr *input_rel_hdr; | |
2847 | Elf32_External_Rela *external_relocs, *erelaend, *erela; | |
2848 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; | |
2849 | ||
2850 | /* If there aren't any relocs, then there's nothing more | |
2851 | to do. */ | |
2852 | if ((section->flags & SEC_RELOC) == 0 | |
2853 | || section->reloc_count == 0) | |
2854 | continue; | |
2855 | ||
25f72752 AM |
2856 | /* If this section is a link-once section that will be |
2857 | discarded, then don't create any stubs. */ | |
2858 | if (section->output_section == NULL | |
2859 | || section->output_section->owner != output_bfd) | |
2860 | continue; | |
2861 | ||
30667bf3 AM |
2862 | /* Allocate space for the external relocations. */ |
2863 | external_relocs | |
2864 | = ((Elf32_External_Rela *) | |
2865 | bfd_malloc (section->reloc_count | |
2866 | * sizeof (Elf32_External_Rela))); | |
2867 | if (external_relocs == NULL) | |
2868 | { | |
2869 | goto error_ret_free_local; | |
2870 | } | |
2871 | ||
2872 | /* Likewise for the internal relocations. */ | |
2873 | internal_relocs = ((Elf_Internal_Rela *) | |
2874 | bfd_malloc (section->reloc_count | |
2875 | * sizeof (Elf_Internal_Rela))); | |
2876 | if (internal_relocs == NULL) | |
2877 | { | |
2878 | free (external_relocs); | |
2879 | goto error_ret_free_local; | |
2880 | } | |
2881 | ||
2882 | /* Read in the external relocs. */ | |
2883 | input_rel_hdr = &elf_section_data (section)->rel_hdr; | |
2884 | if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0 | |
2885 | || bfd_read (external_relocs, 1, | |
2886 | input_rel_hdr->sh_size, | |
2887 | input_bfd) != input_rel_hdr->sh_size) | |
2888 | { | |
2889 | free (external_relocs); | |
2890 | error_ret_free_internal: | |
2891 | free (internal_relocs); | |
2892 | goto error_ret_free_local; | |
2893 | } | |
2894 | ||
2895 | /* Swap in the relocs. */ | |
2896 | erela = external_relocs; | |
2897 | erelaend = erela + section->reloc_count; | |
2898 | irela = internal_relocs; | |
2899 | for (; erela < erelaend; erela++, irela++) | |
2900 | bfd_elf32_swap_reloca_in (input_bfd, erela, irela); | |
2901 | ||
2902 | /* We're done with the external relocs, free them. */ | |
2903 | free (external_relocs); | |
2904 | ||
2905 | /* Now examine each relocation. */ | |
2906 | irela = internal_relocs; | |
2907 | irelaend = irela + section->reloc_count; | |
2908 | for (; irela < irelaend; irela++) | |
2909 | { | |
2910 | unsigned int r_type, r_indx; | |
2911 | enum elf32_hppa_stub_type stub_type; | |
2912 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2913 | asection *sym_sec; | |
2914 | bfd_vma sym_value; | |
2915 | bfd_vma destination; | |
2916 | struct elf32_hppa_link_hash_entry *hash; | |
2917 | char *stub_name; | |
25f72752 | 2918 | const asection *id_sec; |
30667bf3 AM |
2919 | |
2920 | r_type = ELF32_R_TYPE (irela->r_info); | |
2921 | r_indx = ELF32_R_SYM (irela->r_info); | |
2922 | ||
2923 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2924 | { | |
2925 | bfd_set_error (bfd_error_bad_value); | |
2926 | goto error_ret_free_internal; | |
2927 | } | |
2928 | ||
2929 | /* Only look for stubs on call instructions. */ | |
2930 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
2931 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
2932 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
2933 | continue; | |
2934 | ||
2935 | /* Now determine the call target, its name, value, | |
2936 | section. */ | |
2937 | sym_sec = NULL; | |
2938 | sym_value = 0; | |
2939 | destination = 0; | |
2940 | hash = NULL; | |
2941 | if (r_indx < symtab_hdr->sh_info) | |
2942 | { | |
2943 | /* It's a local symbol. */ | |
2944 | Elf_Internal_Sym *sym; | |
2945 | Elf_Internal_Shdr *hdr; | |
2946 | ||
2947 | sym = local_syms + r_indx; | |
2948 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
2949 | sym_sec = hdr->bfd_section; | |
2950 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
2951 | sym_value = sym->st_value; | |
2952 | destination = (sym_value + irela->r_addend | |
2953 | + sym_sec->output_offset | |
2954 | + sym_sec->output_section->vma); | |
2955 | } | |
2956 | else | |
2957 | { | |
2958 | /* It's an external symbol. */ | |
2959 | int e_indx; | |
2960 | ||
2961 | e_indx = r_indx - symtab_hdr->sh_info; | |
2962 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2963 | elf_sym_hashes (input_bfd)[e_indx]); | |
2964 | ||
2965 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2966 | || hash->elf.root.type == bfd_link_hash_warning) | |
2967 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2968 | hash->elf.root.u.i.link); | |
2969 | ||
2970 | if (hash->elf.root.type == bfd_link_hash_defined | |
2971 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2972 | { | |
2973 | sym_sec = hash->elf.root.u.def.section; | |
2974 | sym_value = hash->elf.root.u.def.value; | |
2975 | if (sym_sec->output_section != NULL) | |
2976 | destination = (sym_value + irela->r_addend | |
2977 | + sym_sec->output_offset | |
2978 | + sym_sec->output_section->vma); | |
2979 | } | |
2980 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
2981 | { | |
2982 | if (! info->shared) | |
2983 | continue; | |
2984 | } | |
2985 | else if (hash->elf.root.type == bfd_link_hash_undefined) | |
2986 | { | |
2987 | if (! (info->shared | |
2988 | && !info->no_undefined | |
2989 | && (ELF_ST_VISIBILITY (hash->elf.other) | |
2990 | == STV_DEFAULT))) | |
2991 | continue; | |
2992 | } | |
2993 | else | |
2994 | { | |
2995 | bfd_set_error (bfd_error_bad_value); | |
2996 | goto error_ret_free_internal; | |
2997 | } | |
2998 | } | |
2999 | ||
3000 | /* Determine what (if any) linker stub is needed. */ | |
3001 | stub_type = hppa_type_of_stub (section, irela, hash, | |
3002 | destination); | |
3003 | if (stub_type == hppa_stub_none) | |
3004 | continue; | |
3005 | ||
25f72752 AM |
3006 | /* Support for grouping stub sections. */ |
3007 | id_sec = hplink->stub_group[section->id].link_sec; | |
3008 | ||
30667bf3 | 3009 | /* Get the name of this stub. */ |
25f72752 | 3010 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela); |
30667bf3 AM |
3011 | if (!stub_name) |
3012 | goto error_ret_free_internal; | |
3013 | ||
3014 | stub_entry = hppa_stub_hash_lookup (&hplink->stub_hash_table, | |
3015 | stub_name, | |
3016 | false, false); | |
3017 | if (stub_entry != NULL) | |
3018 | { | |
3019 | /* The proper stub has already been created. */ | |
3020 | free (stub_name); | |
3021 | continue; | |
3022 | } | |
3023 | ||
25f72752 | 3024 | stub_entry = hppa_add_stub (stub_name, section, hplink); |
30667bf3 AM |
3025 | if (stub_entry == NULL) |
3026 | { | |
3027 | free (stub_name); | |
3028 | goto error_ret_free_local; | |
3029 | } | |
3030 | ||
3031 | stub_entry->target_value = sym_value; | |
3032 | stub_entry->target_section = sym_sec; | |
3033 | stub_entry->stub_type = stub_type; | |
3034 | if (info->shared) | |
3035 | { | |
3036 | if (stub_type == hppa_stub_import) | |
3037 | stub_entry->stub_type = hppa_stub_import_shared; | |
3038 | else if (stub_type == hppa_stub_long_branch | |
3039 | && (LONG_BRANCH_PIC_IN_SHLIB || hash == NULL)) | |
3040 | stub_entry->stub_type = hppa_stub_long_branch_shared; | |
3041 | } | |
3042 | stub_entry->h = hash; | |
3043 | stub_changed = 1; | |
3044 | } | |
3045 | ||
3046 | /* We're done with the internal relocs, free them. */ | |
3047 | free (internal_relocs); | |
3048 | } | |
3049 | } | |
3050 | ||
3051 | if (!stub_changed) | |
3052 | break; | |
3053 | ||
3054 | /* OK, we've added some stubs. Find out the new size of the | |
3055 | stub sections. */ | |
30667bf3 AM |
3056 | for (stub_sec = hplink->stub_bfd->sections; |
3057 | stub_sec != NULL; | |
3058 | stub_sec = stub_sec->next) | |
3059 | { | |
74d1c347 AM |
3060 | stub_sec->_raw_size = 0; |
3061 | stub_sec->_cooked_size = 0; | |
3062 | } | |
3063 | #if ! LONG_BRANCH_PIC_IN_SHLIB | |
25f72752 AM |
3064 | { |
3065 | int i; | |
3066 | ||
3067 | for (i = top_id; i >= 0; --i) | |
3068 | { | |
3069 | /* This will probably hit the same section many times.. */ | |
3070 | stub_sec = hplink->stub_group[i].reloc_sec; | |
3071 | if (stub_sec != NULL) | |
3072 | { | |
3073 | stub_sec->_raw_size = 0; | |
3074 | stub_sec->_cooked_size = 0; | |
3075 | } | |
3076 | } | |
3077 | } | |
74d1c347 AM |
3078 | #endif |
3079 | ||
3080 | bfd_hash_traverse (&hplink->stub_hash_table, | |
3081 | hppa_size_one_stub, | |
3082 | hplink); | |
3083 | ||
30667bf3 AM |
3084 | /* Ask the linker to do its stuff. */ |
3085 | (*hplink->layout_sections_again) (); | |
3086 | stub_changed = 0; | |
3087 | } | |
3088 | ||
25f72752 | 3089 | ret = 1; |
30667bf3 AM |
3090 | |
3091 | error_ret_free_local: | |
25f72752 AM |
3092 | while (bfd_count-- > 0) |
3093 | if (all_local_syms[bfd_count]) | |
3094 | free (all_local_syms[bfd_count]); | |
30667bf3 AM |
3095 | free (all_local_syms); |
3096 | ||
25f72752 | 3097 | return ret; |
30667bf3 AM |
3098 | } |
3099 | ||
30667bf3 AM |
3100 | /* For a final link, this function is called after we have sized the |
3101 | stubs to provide a value for __gp. */ | |
3102 | ||
3103 | boolean | |
3104 | elf32_hppa_set_gp (abfd, info) | |
3105 | bfd *abfd; | |
3106 | struct bfd_link_info *info; | |
3107 | { | |
74d1c347 | 3108 | struct elf32_hppa_link_hash_table *hplink; |
30667bf3 AM |
3109 | struct elf_link_hash_entry *h; |
3110 | asection *sec; | |
3111 | bfd_vma gp_val; | |
3112 | ||
74d1c347 AM |
3113 | hplink = hppa_link_hash_table (info); |
3114 | h = elf_link_hash_lookup (&hplink->root, "$global$", | |
30667bf3 AM |
3115 | false, false, false); |
3116 | ||
df8634e3 AM |
3117 | if (h != NULL |
3118 | && (h->root.type == bfd_link_hash_defined | |
3119 | || h->root.type == bfd_link_hash_defweak)) | |
30667bf3 AM |
3120 | { |
3121 | gp_val = h->root.u.def.value; | |
3122 | sec = h->root.u.def.section; | |
3123 | } | |
3124 | else | |
3125 | { | |
74d1c347 AM |
3126 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
3127 | or .data, if these sections exist. In the case of choosing | |
3128 | .plt try to make the LTP ideal for addressing anywhere in the | |
3129 | .plt or .got with a 14 bit signed offset. Typically, the end | |
3130 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
3131 | if either the .plt or .got is larger than 0x2000. If both | |
3132 | the .plt and .got are smaller than 0x2000, choose the end of | |
3133 | the .plt section. */ | |
3134 | ||
3135 | sec = hplink->splt; | |
3136 | if (sec != NULL) | |
30667bf3 | 3137 | { |
74d1c347 AM |
3138 | gp_val = sec->_raw_size; |
3139 | if (gp_val > 0x2000 | |
3140 | || (hplink->sgot && hplink->sgot->_raw_size > 0x2000)) | |
3141 | { | |
3142 | gp_val = 0x2000; | |
3143 | } | |
3144 | } | |
3145 | else | |
3146 | { | |
3147 | gp_val = 0; | |
3148 | sec = hplink->sgot; | |
3149 | if (sec != NULL) | |
3150 | { | |
3151 | /* We know we don't have a .plt. If .got is large, | |
3152 | offset our LTP. */ | |
3153 | if (sec->_raw_size > 0x2000) | |
3154 | gp_val = 0x2000; | |
3155 | } | |
3156 | else | |
3157 | { | |
3158 | /* No .plt or .got. Who cares what the LTP is? */ | |
3159 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3160 | } | |
30667bf3 | 3161 | } |
df8634e3 AM |
3162 | |
3163 | if (h != NULL) | |
3164 | { | |
3165 | h->root.type = bfd_link_hash_defined; | |
3166 | h->root.u.def.value = gp_val; | |
3167 | if (sec != NULL) | |
3168 | h->root.u.def.section = sec; | |
3169 | else | |
3170 | h->root.u.def.section = bfd_abs_section_ptr; | |
3171 | } | |
30667bf3 AM |
3172 | } |
3173 | ||
b32b5d6e | 3174 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
3175 | gp_val += sec->output_section->vma + sec->output_offset; |
3176 | ||
3177 | elf_gp (abfd) = gp_val; | |
30667bf3 AM |
3178 | return true; |
3179 | } | |
3180 | ||
30667bf3 AM |
3181 | /* Build all the stubs associated with the current output file. The |
3182 | stubs are kept in a hash table attached to the main linker hash | |
3183 | table. We also set up the .plt entries for statically linked PIC | |
3184 | functions here. This function is called via hppaelf_finish in the | |
3185 | linker. */ | |
3186 | ||
3187 | boolean | |
3188 | elf32_hppa_build_stubs (info) | |
3189 | struct bfd_link_info *info; | |
3190 | { | |
3191 | asection *stub_sec; | |
3192 | struct bfd_hash_table *table; | |
3193 | struct elf32_hppa_link_hash_table *hplink; | |
3194 | ||
3195 | hplink = hppa_link_hash_table (info); | |
3196 | ||
3197 | for (stub_sec = hplink->stub_bfd->sections; | |
3198 | stub_sec != NULL; | |
3199 | stub_sec = stub_sec->next) | |
3200 | { | |
74d1c347 | 3201 | size_t size; |
30667bf3 AM |
3202 | |
3203 | /* Allocate memory to hold the linker stubs. */ | |
74d1c347 | 3204 | size = stub_sec->_raw_size; |
30667bf3 AM |
3205 | stub_sec->contents = (unsigned char *) bfd_zalloc (hplink->stub_bfd, |
3206 | size); | |
3207 | if (stub_sec->contents == NULL && size != 0) | |
3208 | return false; | |
74d1c347 | 3209 | stub_sec->_raw_size = 0; |
30667bf3 AM |
3210 | } |
3211 | ||
3212 | /* Build the stubs as directed by the stub hash table. */ | |
30667bf3 AM |
3213 | table = &hplink->stub_hash_table; |
3214 | bfd_hash_traverse (table, hppa_build_one_stub, info); | |
3215 | ||
3216 | return true; | |
3217 | } | |
3218 | ||
c46b7515 AM |
3219 | /* Perform a final link. */ |
3220 | ||
3221 | static boolean | |
3222 | elf32_hppa_final_link (abfd, info) | |
3223 | bfd *abfd; | |
3224 | struct bfd_link_info *info; | |
3225 | { | |
3226 | asection *s; | |
3227 | ||
4dc86686 AM |
3228 | /* Invoke the regular ELF linker to do all the work. */ |
3229 | if (!bfd_elf32_bfd_final_link (abfd, info)) | |
c46b7515 AM |
3230 | return false; |
3231 | ||
3232 | /* If we're producing a final executable, sort the contents of the | |
3233 | unwind section. Magic section names, but this is much safer than | |
3234 | having elf32_hppa_relocate_section remember where SEGREL32 relocs | |
3235 | occurred. Consider what happens if someone inept creates a | |
3236 | linker script that puts unwind information in .text. */ | |
3237 | s = bfd_get_section_by_name (abfd, ".PARISC.unwind"); | |
3238 | if (s != NULL) | |
3239 | { | |
3240 | bfd_size_type size; | |
3241 | char *contents; | |
3242 | ||
3243 | size = s->_raw_size; | |
3244 | contents = bfd_malloc (size); | |
3245 | if (contents == NULL) | |
3246 | return false; | |
3247 | ||
3248 | if (! bfd_get_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3249 | return false; | |
3250 | ||
3251 | qsort (contents, size / 16, 16, hppa_unwind_entry_compare); | |
3252 | ||
3253 | if (! bfd_set_section_contents (abfd, s, contents, (file_ptr) 0, size)) | |
3254 | return false; | |
3255 | } | |
3256 | return true; | |
3257 | } | |
3258 | ||
3259 | /* Record the lowest address for the data and text segments. */ | |
3260 | ||
3261 | static void | |
3262 | hppa_record_segment_addr (abfd, section, data) | |
3263 | bfd *abfd ATTRIBUTE_UNUSED; | |
3264 | asection *section; | |
3265 | PTR data; | |
3266 | { | |
3267 | struct elf32_hppa_link_hash_table *hplink; | |
3268 | ||
3269 | hplink = (struct elf32_hppa_link_hash_table *) data; | |
3270 | ||
3271 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3272 | { | |
3273 | bfd_vma value = section->vma - section->filepos; | |
3274 | ||
3275 | if ((section->flags & SEC_READONLY) != 0) | |
3276 | { | |
3277 | if (value < hplink->text_segment_base) | |
3278 | hplink->text_segment_base = value; | |
3279 | } | |
3280 | else | |
3281 | { | |
3282 | if (value < hplink->data_segment_base) | |
3283 | hplink->data_segment_base = value; | |
3284 | } | |
3285 | } | |
3286 | } | |
3287 | ||
30667bf3 AM |
3288 | /* Perform a relocation as part of a final link. */ |
3289 | ||
3290 | static bfd_reloc_status_type | |
25f72752 | 3291 | final_link_relocate (input_section, contents, rel, value, hplink, sym_sec, h) |
30667bf3 AM |
3292 | asection *input_section; |
3293 | bfd_byte *contents; | |
3294 | const Elf_Internal_Rela *rel; | |
3295 | bfd_vma value; | |
25f72752 | 3296 | struct elf32_hppa_link_hash_table *hplink; |
30667bf3 AM |
3297 | asection *sym_sec; |
3298 | struct elf32_hppa_link_hash_entry *h; | |
3299 | { | |
3300 | int insn; | |
3301 | unsigned int r_type = ELF32_R_TYPE (rel->r_info); | |
3302 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; | |
3303 | int r_format = howto->bitsize; | |
3304 | enum hppa_reloc_field_selector_type_alt r_field; | |
3305 | bfd *input_bfd = input_section->owner; | |
3306 | bfd_vma offset = rel->r_offset; | |
3307 | bfd_vma max_branch_offset = 0; | |
3308 | bfd_byte *hit_data = contents + offset; | |
3309 | bfd_signed_vma addend = rel->r_addend; | |
3310 | bfd_vma location; | |
3311 | struct elf32_hppa_stub_hash_entry *stub_entry = NULL; | |
3312 | int val; | |
3313 | ||
3314 | if (r_type == R_PARISC_NONE) | |
3315 | return bfd_reloc_ok; | |
3316 | ||
3317 | insn = bfd_get_32 (input_bfd, hit_data); | |
3318 | ||
3319 | /* Find out where we are and where we're going. */ | |
3320 | location = (offset + | |
3321 | input_section->output_offset + | |
3322 | input_section->output_section->vma); | |
3323 | ||
3324 | switch (r_type) | |
3325 | { | |
3326 | case R_PARISC_PCREL12F: | |
3327 | case R_PARISC_PCREL17F: | |
3328 | case R_PARISC_PCREL22F: | |
3329 | /* If this is a call to a function defined in another dynamic | |
3330 | library, or if it is a call to a PIC function in the same | |
74d1c347 AM |
3331 | object, or if this is a shared link and it is a call to a |
3332 | weak symbol which may or may not be in the same object, then | |
3333 | find the import stub in the stub hash. */ | |
30667bf3 AM |
3334 | if (sym_sec == NULL |
3335 | || sym_sec->output_section == NULL | |
12cca0d2 AM |
3336 | || (h != NULL |
3337 | && ((h->maybe_pic_call | |
3338 | && !(input_section->flags & SEC_HAS_GOT_REF)) | |
3339 | || (h->elf.root.type == bfd_link_hash_defweak | |
3340 | && h->elf.dynindx != -1 | |
3341 | && h->elf.plt.offset != (bfd_vma) -1)))) | |
30667bf3 AM |
3342 | { |
3343 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
25f72752 | 3344 | h, rel, hplink); |
30667bf3 AM |
3345 | if (stub_entry != NULL) |
3346 | { | |
3347 | value = (stub_entry->stub_offset | |
3348 | + stub_entry->stub_sec->output_offset | |
3349 | + stub_entry->stub_sec->output_section->vma); | |
3350 | addend = 0; | |
3351 | } | |
3352 | else if (sym_sec == NULL && h != NULL | |
3353 | && h->elf.root.type == bfd_link_hash_undefweak) | |
3354 | { | |
db20fd76 AM |
3355 | /* It's OK if undefined weak. Calls to undefined weak |
3356 | symbols behave as if the "called" function | |
3357 | immediately returns. We can thus call to a weak | |
3358 | function without first checking whether the function | |
3359 | is defined. */ | |
30667bf3 | 3360 | value = location; |
db20fd76 | 3361 | addend = 8; |
30667bf3 AM |
3362 | } |
3363 | else | |
3364 | return bfd_reloc_notsupported; | |
3365 | } | |
3366 | /* Fall thru. */ | |
3367 | ||
3368 | case R_PARISC_PCREL21L: | |
3369 | case R_PARISC_PCREL17C: | |
3370 | case R_PARISC_PCREL17R: | |
3371 | case R_PARISC_PCREL14R: | |
3372 | case R_PARISC_PCREL14F: | |
3373 | /* Make it a pc relative offset. */ | |
3374 | value -= location; | |
3375 | addend -= 8; | |
3376 | break; | |
3377 | ||
3378 | case R_PARISC_DPREL21L: | |
3379 | case R_PARISC_DPREL14R: | |
3380 | case R_PARISC_DPREL14F: | |
3381 | /* For all the DP relative relocations, we need to examine the symbol's | |
3382 | section. If it's a code section, then "data pointer relative" makes | |
3383 | no sense. In that case we don't adjust the "value", and for 21 bit | |
3384 | addil instructions, we change the source addend register from %dp to | |
3385 | %r0. This situation commonly arises when a variable's "constness" | |
3386 | is declared differently from the way the variable is defined. For | |
3387 | instance: "extern int foo" with foo defined as "const int foo". */ | |
3388 | if (sym_sec == NULL) | |
3389 | break; | |
3390 | if ((sym_sec->flags & SEC_CODE) != 0) | |
3391 | { | |
3392 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3393 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3394 | { | |
3395 | insn &= ~ (0x1f << 21); | |
74d1c347 | 3396 | #if 1 /* debug them. */ |
30667bf3 AM |
3397 | (*_bfd_error_handler) |
3398 | (_("%s(%s+0x%lx): fixing %s"), | |
3399 | bfd_get_filename (input_bfd), | |
3400 | input_section->name, | |
3401 | (long) rel->r_offset, | |
3402 | howto->name); | |
3403 | #endif | |
3404 | } | |
3405 | /* Now try to make things easy for the dynamic linker. */ | |
3406 | ||
3407 | break; | |
3408 | } | |
74d1c347 | 3409 | /* Fall thru. */ |
30667bf3 AM |
3410 | |
3411 | case R_PARISC_DLTIND21L: | |
3412 | case R_PARISC_DLTIND14R: | |
3413 | case R_PARISC_DLTIND14F: | |
3414 | value -= elf_gp (input_section->output_section->owner); | |
3415 | break; | |
3416 | ||
c46b7515 AM |
3417 | case R_PARISC_SEGREL32: |
3418 | if ((sym_sec->flags & SEC_CODE) != 0) | |
3419 | value -= hplink->text_segment_base; | |
3420 | else | |
3421 | value -= hplink->data_segment_base; | |
3422 | break; | |
3423 | ||
30667bf3 AM |
3424 | default: |
3425 | break; | |
3426 | } | |
3427 | ||
3428 | switch (r_type) | |
3429 | { | |
3430 | case R_PARISC_DIR32: | |
47d89dba | 3431 | case R_PARISC_DIR14F: |
30667bf3 AM |
3432 | case R_PARISC_DIR17F: |
3433 | case R_PARISC_PCREL17C: | |
3434 | case R_PARISC_PCREL14F: | |
3435 | case R_PARISC_DPREL14F: | |
3436 | case R_PARISC_PLABEL32: | |
3437 | case R_PARISC_DLTIND14F: | |
3438 | case R_PARISC_SEGBASE: | |
3439 | case R_PARISC_SEGREL32: | |
3440 | r_field = e_fsel; | |
3441 | break; | |
3442 | ||
3443 | case R_PARISC_DIR21L: | |
3444 | case R_PARISC_PCREL21L: | |
3445 | case R_PARISC_DPREL21L: | |
3446 | case R_PARISC_PLABEL21L: | |
3447 | case R_PARISC_DLTIND21L: | |
3448 | r_field = e_lrsel; | |
3449 | break; | |
3450 | ||
3451 | case R_PARISC_DIR17R: | |
3452 | case R_PARISC_PCREL17R: | |
3453 | case R_PARISC_DIR14R: | |
3454 | case R_PARISC_PCREL14R: | |
3455 | case R_PARISC_DPREL14R: | |
3456 | case R_PARISC_PLABEL14R: | |
3457 | case R_PARISC_DLTIND14R: | |
3458 | r_field = e_rrsel; | |
3459 | break; | |
3460 | ||
3461 | case R_PARISC_PCREL12F: | |
3462 | case R_PARISC_PCREL17F: | |
3463 | case R_PARISC_PCREL22F: | |
3464 | r_field = e_fsel; | |
3465 | ||
3466 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3467 | { | |
3468 | max_branch_offset = (1 << (17-1)) << 2; | |
3469 | } | |
3470 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3471 | { | |
3472 | max_branch_offset = (1 << (12-1)) << 2; | |
3473 | } | |
3474 | else | |
3475 | { | |
3476 | max_branch_offset = (1 << (22-1)) << 2; | |
3477 | } | |
3478 | ||
3479 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3480 | undefined syms. We've already checked for a stub for the | |
3481 | shared undefined case. */ | |
3482 | if (sym_sec == NULL) | |
3483 | break; | |
3484 | ||
3485 | /* If the branch is out of reach, then redirect the | |
3486 | call to the local stub for this function. */ | |
3487 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3488 | { | |
3489 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
25f72752 | 3490 | h, rel, hplink); |
30667bf3 AM |
3491 | if (stub_entry == NULL) |
3492 | return bfd_reloc_notsupported; | |
3493 | ||
3494 | /* Munge up the value and addend so that we call the stub | |
3495 | rather than the procedure directly. */ | |
3496 | value = (stub_entry->stub_offset | |
3497 | + stub_entry->stub_sec->output_offset | |
3498 | + stub_entry->stub_sec->output_section->vma | |
3499 | - location); | |
3500 | addend = -8; | |
3501 | } | |
3502 | break; | |
3503 | ||
3504 | /* Something we don't know how to handle. */ | |
3505 | default: | |
3506 | return bfd_reloc_notsupported; | |
3507 | } | |
3508 | ||
3509 | /* Make sure we can reach the stub. */ | |
3510 | if (max_branch_offset != 0 | |
3511 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3512 | { | |
3513 | (*_bfd_error_handler) | |
3514 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), | |
3515 | bfd_get_filename (input_bfd), | |
3516 | input_section->name, | |
3517 | (long) rel->r_offset, | |
3518 | stub_entry->root.string); | |
3519 | return bfd_reloc_notsupported; | |
3520 | } | |
3521 | ||
3522 | val = hppa_field_adjust (value, addend, r_field); | |
3523 | ||
3524 | switch (r_type) | |
3525 | { | |
3526 | case R_PARISC_PCREL12F: | |
3527 | case R_PARISC_PCREL17C: | |
3528 | case R_PARISC_PCREL17F: | |
3529 | case R_PARISC_PCREL17R: | |
3530 | case R_PARISC_PCREL22F: | |
3531 | case R_PARISC_DIR17F: | |
3532 | case R_PARISC_DIR17R: | |
3533 | /* This is a branch. Divide the offset by four. | |
3534 | Note that we need to decide whether it's a branch or | |
3535 | otherwise by inspecting the reloc. Inspecting insn won't | |
3536 | work as insn might be from a .word directive. */ | |
3537 | val >>= 2; | |
3538 | break; | |
3539 | ||
3540 | default: | |
3541 | break; | |
3542 | } | |
3543 | ||
3544 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3545 | ||
3546 | /* Update the instruction word. */ | |
74d1c347 | 3547 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3548 | return bfd_reloc_ok; |
3549 | } | |
3550 | ||
30667bf3 AM |
3551 | /* Relocate an HPPA ELF section. */ |
3552 | ||
3553 | static boolean | |
3554 | elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section, | |
3555 | contents, relocs, local_syms, local_sections) | |
3556 | bfd *output_bfd; | |
3557 | struct bfd_link_info *info; | |
3558 | bfd *input_bfd; | |
3559 | asection *input_section; | |
3560 | bfd_byte *contents; | |
3561 | Elf_Internal_Rela *relocs; | |
3562 | Elf_Internal_Sym *local_syms; | |
3563 | asection **local_sections; | |
3564 | { | |
3565 | bfd *dynobj; | |
3566 | bfd_vma *local_got_offsets; | |
3567 | struct elf32_hppa_link_hash_table *hplink; | |
3568 | Elf_Internal_Shdr *symtab_hdr; | |
3569 | Elf_Internal_Rela *rel; | |
3570 | Elf_Internal_Rela *relend; | |
3571 | asection *sreloc; | |
3572 | ||
3573 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3574 | ||
30667bf3 | 3575 | hplink = hppa_link_hash_table (info); |
74d1c347 AM |
3576 | dynobj = hplink->root.dynobj; |
3577 | local_got_offsets = elf_local_got_offsets (input_bfd); | |
30667bf3 AM |
3578 | sreloc = NULL; |
3579 | ||
3580 | rel = relocs; | |
3581 | relend = relocs + input_section->reloc_count; | |
3582 | for (; rel < relend; rel++) | |
3583 | { | |
3584 | unsigned int r_type; | |
3585 | reloc_howto_type *howto; | |
3586 | unsigned int r_symndx; | |
3587 | struct elf32_hppa_link_hash_entry *h; | |
3588 | Elf_Internal_Sym *sym; | |
3589 | asection *sym_sec; | |
3590 | bfd_vma relocation; | |
3591 | bfd_reloc_status_type r; | |
3592 | const char *sym_name; | |
74d1c347 | 3593 | boolean plabel; |
68fb2e56 | 3594 | bfd_vma off; |
30667bf3 AM |
3595 | |
3596 | r_type = ELF32_R_TYPE (rel->r_info); | |
3597 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3598 | { | |
3599 | bfd_set_error (bfd_error_bad_value); | |
3600 | return false; | |
3601 | } | |
3602 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3603 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3604 | continue; | |
3605 | ||
3606 | r_symndx = ELF32_R_SYM (rel->r_info); | |
3607 | ||
3608 | if (info->relocateable) | |
3609 | { | |
3610 | /* This is a relocateable link. We don't have to change | |
3611 | anything, unless the reloc is against a section symbol, | |
3612 | in which case we have to adjust according to where the | |
3613 | section symbol winds up in the output section. */ | |
3614 | if (r_symndx < symtab_hdr->sh_info) | |
3615 | { | |
3616 | sym = local_syms + r_symndx; | |
3617 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
3618 | { | |
3619 | sym_sec = local_sections[r_symndx]; | |
3620 | rel->r_addend += sym_sec->output_offset; | |
3621 | } | |
3622 | } | |
3623 | continue; | |
3624 | } | |
3625 | ||
3626 | /* This is a final link. */ | |
3627 | h = NULL; | |
3628 | sym = NULL; | |
3629 | sym_sec = NULL; | |
3630 | if (r_symndx < symtab_hdr->sh_info) | |
3631 | { | |
3632 | /* This is a local symbol, h defaults to NULL. */ | |
3633 | sym = local_syms + r_symndx; | |
3634 | sym_sec = local_sections[r_symndx]; | |
3635 | relocation = ((ELF_ST_TYPE (sym->st_info) == STT_SECTION | |
3636 | ? 0 : sym->st_value) | |
3637 | + sym_sec->output_offset | |
3638 | + sym_sec->output_section->vma); | |
3639 | } | |
3640 | else | |
3641 | { | |
3642 | int indx; | |
3643 | ||
3644 | /* It's a global; Find its entry in the link hash. */ | |
3645 | indx = r_symndx - symtab_hdr->sh_info; | |
3646 | h = ((struct elf32_hppa_link_hash_entry *) | |
3647 | elf_sym_hashes (input_bfd)[indx]); | |
3648 | while (h->elf.root.type == bfd_link_hash_indirect | |
3649 | || h->elf.root.type == bfd_link_hash_warning) | |
3650 | h = (struct elf32_hppa_link_hash_entry *) h->elf.root.u.i.link; | |
3651 | ||
3652 | relocation = 0; | |
3653 | if (h->elf.root.type == bfd_link_hash_defined | |
3654 | || h->elf.root.type == bfd_link_hash_defweak) | |
3655 | { | |
3656 | sym_sec = h->elf.root.u.def.section; | |
3657 | /* If sym_sec->output_section is NULL, then it's a | |
3658 | symbol defined in a shared library. */ | |
3659 | if (sym_sec->output_section != NULL) | |
3660 | relocation = (h->elf.root.u.def.value | |
3661 | + sym_sec->output_offset | |
3662 | + sym_sec->output_section->vma); | |
3663 | } | |
3664 | else if (h->elf.root.type == bfd_link_hash_undefweak) | |
3665 | ; | |
3666 | else if (info->shared && !info->no_undefined | |
49e9d0d3 AM |
3667 | && ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
3668 | && h->elf.type != STT_PARISC_MILLI) | |
30667bf3 AM |
3669 | { |
3670 | if (info->symbolic) | |
3671 | if (!((*info->callbacks->undefined_symbol) | |
3672 | (info, h->elf.root.root.string, input_bfd, | |
3673 | input_section, rel->r_offset, false))) | |
3674 | return false; | |
3675 | } | |
3676 | else | |
3677 | { | |
3678 | if (!((*info->callbacks->undefined_symbol) | |
3679 | (info, h->elf.root.root.string, input_bfd, | |
3680 | input_section, rel->r_offset, true))) | |
3681 | return false; | |
3682 | } | |
3683 | } | |
3684 | ||
3685 | /* Do any required modifications to the relocation value, and | |
25f72752 AM |
3686 | determine what types of dynamic info we need to output, if |
3687 | any. */ | |
74d1c347 | 3688 | plabel = 0; |
30667bf3 AM |
3689 | switch (r_type) |
3690 | { | |
3691 | case R_PARISC_DLTIND14F: | |
3692 | case R_PARISC_DLTIND14R: | |
3693 | case R_PARISC_DLTIND21L: | |
3694 | /* Relocation is to the entry for this symbol in the global | |
3695 | offset table. */ | |
3696 | if (h != NULL) | |
3697 | { | |
4dc86686 | 3698 | boolean dyn; |
30667bf3 AM |
3699 | |
3700 | off = h->elf.got.offset; | |
4dc86686 AM |
3701 | dyn = hplink->root.dynamic_sections_created; |
3702 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf)) | |
30667bf3 AM |
3703 | { |
3704 | /* This is actually a static link, or it is a | |
3705 | -Bsymbolic link and the symbol is defined | |
3706 | locally, or the symbol was forced to be local | |
3707 | because of a version file. We must initialize | |
3708 | this entry in the global offset table. Since the | |
3709 | offset must always be a multiple of 4, we use the | |
3710 | least significant bit to record whether we have | |
3711 | initialized it already. | |
3712 | ||
3713 | When doing a dynamic link, we create a .rela.got | |
3714 | relocation entry to initialize the value. This | |
3715 | is done in the finish_dynamic_symbol routine. */ | |
3716 | if ((off & 1) != 0) | |
3717 | off &= ~1; | |
3718 | else | |
3719 | { | |
3720 | bfd_put_32 (output_bfd, relocation, | |
3721 | hplink->sgot->contents + off); | |
3722 | h->elf.got.offset |= 1; | |
3723 | } | |
3724 | } | |
30667bf3 AM |
3725 | } |
3726 | else | |
3727 | { | |
3728 | /* Local symbol case. */ | |
68fb2e56 | 3729 | if (local_got_offsets == NULL) |
49e9d0d3 | 3730 | abort (); |
30667bf3 | 3731 | |
68fb2e56 AM |
3732 | off = local_got_offsets[r_symndx]; |
3733 | ||
30667bf3 AM |
3734 | /* The offset must always be a multiple of 4. We use |
3735 | the least significant bit to record whether we have | |
3736 | already generated the necessary reloc. */ | |
3737 | if ((off & 1) != 0) | |
3738 | off &= ~1; | |
3739 | else | |
3740 | { | |
3741 | bfd_put_32 (output_bfd, relocation, | |
3742 | hplink->sgot->contents + off); | |
3743 | ||
3744 | if (info->shared) | |
3745 | { | |
8dea1268 AM |
3746 | /* Output a dynamic relocation for this GOT |
3747 | entry. In this case it is relative to the | |
3748 | base of the object because the symbol index | |
3749 | is zero. */ | |
30667bf3 AM |
3750 | Elf_Internal_Rela outrel; |
3751 | asection *srelgot = hplink->srelgot; | |
3752 | ||
3753 | outrel.r_offset = (off | |
3754 | + hplink->sgot->output_offset | |
3755 | + hplink->sgot->output_section->vma); | |
74d1c347 | 3756 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
3757 | outrel.r_addend = relocation; |
3758 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
3759 | ((Elf32_External_Rela *) | |
3760 | srelgot->contents | |
3761 | + srelgot->reloc_count)); | |
3762 | ++srelgot->reloc_count; | |
3763 | } | |
252b5132 | 3764 | |
30667bf3 AM |
3765 | local_got_offsets[r_symndx] |= 1; |
3766 | } | |
30667bf3 | 3767 | } |
252b5132 | 3768 | |
68fb2e56 AM |
3769 | if (off >= (bfd_vma) -2) |
3770 | abort (); | |
3771 | ||
30667bf3 | 3772 | /* Add the base of the GOT to the relocation value. */ |
68fb2e56 AM |
3773 | relocation = (off |
3774 | + hplink->sgot->output_offset | |
3775 | + hplink->sgot->output_section->vma); | |
30667bf3 | 3776 | break; |
252b5132 | 3777 | |
c46b7515 AM |
3778 | case R_PARISC_SEGREL32: |
3779 | /* If this is the first SEGREL relocation, then initialize | |
3780 | the segment base values. */ | |
3781 | if (hplink->text_segment_base == (bfd_vma) -1) | |
3782 | bfd_map_over_sections (output_bfd, | |
3783 | hppa_record_segment_addr, | |
3784 | hplink); | |
3785 | break; | |
3786 | ||
30667bf3 AM |
3787 | case R_PARISC_PLABEL14R: |
3788 | case R_PARISC_PLABEL21L: | |
3789 | case R_PARISC_PLABEL32: | |
74d1c347 | 3790 | if (hplink->root.dynamic_sections_created) |
252b5132 | 3791 | { |
74d1c347 AM |
3792 | /* If we have a global symbol with a PLT slot, then |
3793 | redirect this relocation to it. */ | |
3794 | if (h != NULL) | |
3795 | { | |
3796 | off = h->elf.plt.offset; | |
4dc86686 | 3797 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, &h->elf)) |
8dea1268 AM |
3798 | { |
3799 | /* In a non-shared link, adjust_dynamic_symbols | |
3800 | isn't called for symbols forced local. We | |
3801 | need to write out the plt entry here. */ | |
3802 | if ((off & 1) != 0) | |
3803 | off &= ~1; | |
3804 | else | |
3805 | { | |
3806 | bfd_put_32 (output_bfd, | |
3807 | relocation, | |
3808 | hplink->splt->contents + off); | |
3809 | bfd_put_32 (output_bfd, | |
3810 | elf_gp (hplink->splt->output_section->owner), | |
3811 | hplink->splt->contents + off + 4); | |
3812 | h->elf.plt.offset |= 1; | |
3813 | } | |
3814 | } | |
74d1c347 AM |
3815 | } |
3816 | else | |
3817 | { | |
68fb2e56 AM |
3818 | bfd_vma *local_plt_offsets; |
3819 | ||
3820 | if (local_got_offsets == NULL) | |
3821 | abort (); | |
74d1c347 | 3822 | |
68fb2e56 AM |
3823 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3824 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3825 | |
3826 | /* As for the local .got entry case, we use the last | |
3827 | bit to record whether we've already initialised | |
3828 | this local .plt entry. */ | |
3829 | if ((off & 1) != 0) | |
3830 | off &= ~1; | |
3831 | else | |
3832 | { | |
3833 | bfd_put_32 (output_bfd, | |
3834 | relocation, | |
3835 | hplink->splt->contents + off); | |
3836 | bfd_put_32 (output_bfd, | |
3837 | elf_gp (hplink->splt->output_section->owner), | |
3838 | hplink->splt->contents + off + 4); | |
3839 | ||
3840 | if (info->shared) | |
3841 | { | |
3842 | /* Output a dynamic IPLT relocation for this | |
3843 | PLT entry. */ | |
3844 | Elf_Internal_Rela outrel; | |
3845 | asection *srelplt = hplink->srelplt; | |
3846 | ||
3847 | outrel.r_offset = (off | |
3848 | + hplink->splt->output_offset | |
3849 | + hplink->splt->output_section->vma); | |
3850 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3851 | outrel.r_addend = relocation; | |
3852 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, | |
3853 | ((Elf32_External_Rela *) | |
3854 | srelplt->contents | |
3855 | + srelplt->reloc_count)); | |
3856 | ++srelplt->reloc_count; | |
3857 | } | |
3858 | ||
68fb2e56 | 3859 | local_plt_offsets[r_symndx] |= 1; |
74d1c347 AM |
3860 | } |
3861 | } | |
3862 | ||
68fb2e56 | 3863 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3864 | abort (); |
74d1c347 AM |
3865 | |
3866 | /* PLABELs contain function pointers. Relocation is to | |
3867 | the entry for the function in the .plt. The magic +2 | |
3868 | offset signals to $$dyncall that the function pointer | |
3869 | is in the .plt and thus has a gp pointer too. | |
3870 | Exception: Undefined PLABELs should have a value of | |
3871 | zero. */ | |
3872 | if (h == NULL | |
3873 | || (h->elf.root.type != bfd_link_hash_undefweak | |
3874 | && h->elf.root.type != bfd_link_hash_undefined)) | |
3875 | { | |
3876 | relocation = (off | |
3877 | + hplink->splt->output_offset | |
3878 | + hplink->splt->output_section->vma | |
3879 | + 2); | |
3880 | } | |
3881 | plabel = 1; | |
30667bf3 AM |
3882 | } |
3883 | /* Fall through and possibly emit a dynamic relocation. */ | |
3884 | ||
3885 | case R_PARISC_DIR17F: | |
3886 | case R_PARISC_DIR17R: | |
47d89dba | 3887 | case R_PARISC_DIR14F: |
30667bf3 AM |
3888 | case R_PARISC_DIR14R: |
3889 | case R_PARISC_DIR21L: | |
3890 | case R_PARISC_DPREL14F: | |
3891 | case R_PARISC_DPREL14R: | |
3892 | case R_PARISC_DPREL21L: | |
3893 | case R_PARISC_DIR32: | |
3894 | /* The reloc types handled here and this conditional | |
3895 | expression must match the code in check_relocs and | |
3896 | hppa_discard_copies. ie. We need exactly the same | |
3897 | condition as in check_relocs, with some extra conditions | |
3898 | (dynindx test in this case) to cater for relocs removed | |
446f2863 AM |
3899 | by hppa_discard_copies. If you squint, the non-shared |
3900 | test here does indeed match the one in check_relocs, the | |
3901 | difference being that here we test DEF_DYNAMIC rather | |
3902 | than a maybe-DEF_DYNAMIC via !DEF_REGULAR. Common syms | |
3903 | end up with !DEF_REGULAR, which is why we can't use that | |
3904 | here. Conversely, DEF_DYNAMIC can't be used in | |
3905 | check_relocs as there all files have not been loaded. */ | |
3906 | if ((info->shared | |
3907 | && (input_section->flags & SEC_ALLOC) != 0 | |
3908 | && (IS_ABSOLUTE_RELOC (r_type) | |
3909 | || (h != NULL | |
3910 | && h->elf.dynindx != -1 | |
3911 | && (!info->symbolic | |
3912 | || (h->elf.elf_link_hash_flags | |
3913 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
3914 | || (!info->shared | |
3915 | && (input_section->flags & SEC_ALLOC) != 0 | |
3916 | && h != NULL | |
3917 | && h->elf.dynindx != -1 | |
3918 | && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
3919 | && ((h->elf.elf_link_hash_flags | |
3920 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
3921 | || h->elf.root.type == bfd_link_hash_undefweak | |
3922 | || h->elf.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
3923 | { |
3924 | Elf_Internal_Rela outrel; | |
3925 | boolean skip; | |
252b5132 | 3926 | |
30667bf3 AM |
3927 | /* When generating a shared object, these relocations |
3928 | are copied into the output file to be resolved at run | |
3929 | time. */ | |
252b5132 | 3930 | |
30667bf3 | 3931 | if (sreloc == NULL) |
edd21aca | 3932 | { |
30667bf3 AM |
3933 | const char *name; |
3934 | ||
3935 | name = (bfd_elf_string_from_elf_section | |
3936 | (input_bfd, | |
3937 | elf_elfheader (input_bfd)->e_shstrndx, | |
3938 | elf_section_data (input_section)->rel_hdr.sh_name)); | |
3939 | if (name == NULL) | |
3940 | return false; | |
3941 | sreloc = bfd_get_section_by_name (dynobj, name); | |
49e9d0d3 AM |
3942 | if (sreloc == NULL) |
3943 | abort (); | |
edd21aca | 3944 | } |
252b5132 | 3945 | |
30667bf3 AM |
3946 | outrel.r_offset = rel->r_offset; |
3947 | outrel.r_addend = rel->r_addend; | |
3948 | skip = false; | |
3949 | if (elf_section_data (input_section)->stab_info != NULL) | |
edd21aca | 3950 | { |
30667bf3 AM |
3951 | bfd_vma off; |
3952 | ||
3953 | off = (_bfd_stab_section_offset | |
74d1c347 | 3954 | (output_bfd, &hplink->root.stab_info, |
30667bf3 AM |
3955 | input_section, |
3956 | &elf_section_data (input_section)->stab_info, | |
3957 | rel->r_offset)); | |
3958 | if (off == (bfd_vma) -1) | |
3959 | skip = true; | |
3960 | outrel.r_offset = off; | |
edd21aca | 3961 | } |
252b5132 | 3962 | |
30667bf3 AM |
3963 | outrel.r_offset += (input_section->output_offset |
3964 | + input_section->output_section->vma); | |
3965 | ||
3966 | if (skip) | |
252b5132 | 3967 | { |
30667bf3 | 3968 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 3969 | } |
74d1c347 AM |
3970 | else if (h != NULL |
3971 | && h->elf.dynindx != -1 | |
3972 | && (plabel | |
446f2863 AM |
3973 | || !IS_ABSOLUTE_RELOC (r_type) |
3974 | || !info->shared | |
74d1c347 | 3975 | || !info->symbolic |
30667bf3 AM |
3976 | || (h->elf.elf_link_hash_flags |
3977 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
252b5132 | 3978 | { |
30667bf3 AM |
3979 | outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type); |
3980 | } | |
3981 | else /* It's a local symbol, or one marked to become local. */ | |
3982 | { | |
3983 | int indx = 0; | |
edd21aca | 3984 | |
30667bf3 AM |
3985 | /* Add the absolute offset of the symbol. */ |
3986 | outrel.r_addend += relocation; | |
edd21aca | 3987 | |
74d1c347 AM |
3988 | /* Global plabels need to be processed by the |
3989 | dynamic linker so that functions have at most one | |
3990 | fptr. For this reason, we need to differentiate | |
3991 | between global and local plabels, which we do by | |
3992 | providing the function symbol for a global plabel | |
3993 | reloc, and no symbol for local plabels. */ | |
3994 | if (! plabel | |
3995 | && sym_sec != NULL | |
30667bf3 AM |
3996 | && sym_sec->output_section != NULL |
3997 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 3998 | { |
30667bf3 AM |
3999 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
4000 | /* We are turning this relocation into one | |
4001 | against a section symbol, so subtract out the | |
4002 | output section's address but not the offset | |
4003 | of the input section in the output section. */ | |
4004 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 4005 | } |
252b5132 | 4006 | |
30667bf3 AM |
4007 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
4008 | } | |
68fb2e56 AM |
4009 | #if 0 |
4010 | /* EH info can cause unaligned DIR32 relocs. | |
4011 | Tweak the reloc type for the dynamic linker. */ | |
4012 | if (r_type == R_PARISC_DIR32 && (outrel.r_offset & 3) != 0) | |
4013 | outrel.r_info = ELF32_R_INFO (ELF32_R_SYM (outrel.r_info), | |
4014 | R_PARISC_DIR32U); | |
4015 | #endif | |
30667bf3 AM |
4016 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, |
4017 | ((Elf32_External_Rela *) | |
4018 | sreloc->contents | |
4019 | + sreloc->reloc_count)); | |
4020 | ++sreloc->reloc_count; | |
4021 | } | |
4022 | break; | |
edd21aca | 4023 | |
30667bf3 AM |
4024 | default: |
4025 | break; | |
4026 | } | |
252b5132 | 4027 | |
30667bf3 | 4028 | r = final_link_relocate (input_section, contents, rel, relocation, |
25f72752 | 4029 | hplink, sym_sec, h); |
252b5132 | 4030 | |
30667bf3 AM |
4031 | if (r == bfd_reloc_ok) |
4032 | continue; | |
252b5132 | 4033 | |
30667bf3 AM |
4034 | if (h != NULL) |
4035 | sym_name = h->elf.root.root.string; | |
4036 | else | |
4037 | { | |
4038 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
4039 | symtab_hdr->sh_link, | |
4040 | sym->st_name); | |
4041 | if (sym_name == NULL) | |
4042 | return false; | |
4043 | if (*sym_name == '\0') | |
4044 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
4045 | } | |
edd21aca | 4046 | |
30667bf3 | 4047 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 4048 | |
30667bf3 AM |
4049 | if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported) |
4050 | { | |
4051 | (*_bfd_error_handler) | |
4052 | (_("%s(%s+0x%lx): cannot handle %s for %s"), | |
4053 | bfd_get_filename (input_bfd), | |
4054 | input_section->name, | |
4055 | (long) rel->r_offset, | |
4056 | howto->name, | |
4057 | sym_name); | |
4058 | } | |
4059 | else | |
4060 | { | |
4061 | if (!((*info->callbacks->reloc_overflow) | |
4062 | (info, sym_name, howto->name, (bfd_vma) 0, | |
4063 | input_bfd, input_section, rel->r_offset))) | |
4064 | return false; | |
4065 | } | |
4066 | } | |
edd21aca | 4067 | |
30667bf3 AM |
4068 | return true; |
4069 | } | |
252b5132 | 4070 | |
c46b7515 AM |
4071 | /* Comparison function for qsort to sort unwind section during a |
4072 | final link. */ | |
4073 | ||
4074 | static int | |
4075 | hppa_unwind_entry_compare (a, b) | |
4076 | const PTR a; | |
4077 | const PTR b; | |
4078 | { | |
4079 | const bfd_byte *ap, *bp; | |
4080 | unsigned long av, bv; | |
4081 | ||
4082 | ap = (const bfd_byte *) a; | |
4083 | av = (unsigned long) ap[0] << 24; | |
4084 | av |= (unsigned long) ap[1] << 16; | |
4085 | av |= (unsigned long) ap[2] << 8; | |
4086 | av |= (unsigned long) ap[3]; | |
4087 | ||
4088 | bp = (const bfd_byte *) b; | |
4089 | bv = (unsigned long) bp[0] << 24; | |
4090 | bv |= (unsigned long) bp[1] << 16; | |
4091 | bv |= (unsigned long) bp[2] << 8; | |
4092 | bv |= (unsigned long) bp[3]; | |
4093 | ||
4094 | return av < bv ? -1 : av > bv ? 1 : 0; | |
4095 | } | |
4096 | ||
30667bf3 AM |
4097 | /* Finish up dynamic symbol handling. We set the contents of various |
4098 | dynamic sections here. */ | |
252b5132 | 4099 | |
30667bf3 AM |
4100 | static boolean |
4101 | elf32_hppa_finish_dynamic_symbol (output_bfd, info, h, sym) | |
4102 | bfd *output_bfd; | |
4103 | struct bfd_link_info *info; | |
4104 | struct elf_link_hash_entry *h; | |
4105 | Elf_Internal_Sym *sym; | |
4106 | { | |
4107 | struct elf32_hppa_link_hash_table *hplink; | |
4108 | bfd *dynobj; | |
edd21aca | 4109 | |
30667bf3 | 4110 | hplink = hppa_link_hash_table (info); |
74d1c347 | 4111 | dynobj = hplink->root.dynobj; |
30667bf3 | 4112 | |
30667bf3 AM |
4113 | if (h->plt.offset != (bfd_vma) -1) |
4114 | { | |
4115 | bfd_vma value; | |
30667bf3 | 4116 | |
8dea1268 AM |
4117 | if (h->plt.offset & 1) |
4118 | abort (); | |
4119 | ||
30667bf3 AM |
4120 | /* This symbol has an entry in the procedure linkage table. Set |
4121 | it up. | |
4122 | ||
4123 | The format of a plt entry is | |
74d1c347 AM |
4124 | <funcaddr> |
4125 | <__gp> | |
47d89dba | 4126 | */ |
30667bf3 AM |
4127 | value = 0; |
4128 | if (h->root.type == bfd_link_hash_defined | |
4129 | || h->root.type == bfd_link_hash_defweak) | |
4130 | { | |
4131 | value = h->root.u.def.value; | |
4132 | if (h->root.u.def.section->output_section != NULL) | |
4133 | value += (h->root.u.def.section->output_offset | |
4134 | + h->root.u.def.section->output_section->vma); | |
252b5132 | 4135 | } |
edd21aca | 4136 | |
74d1c347 | 4137 | if (! ((struct elf32_hppa_link_hash_entry *) h)->pic_call) |
30667bf3 | 4138 | { |
47d89dba AM |
4139 | Elf_Internal_Rela rel; |
4140 | ||
30667bf3 AM |
4141 | /* Create a dynamic IPLT relocation for this entry. */ |
4142 | rel.r_offset = (h->plt.offset | |
4143 | + hplink->splt->output_offset | |
4144 | + hplink->splt->output_section->vma); | |
74d1c347 AM |
4145 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plt_abs |
4146 | && h->dynindx != -1) | |
4147 | { | |
47d89dba AM |
4148 | /* To support lazy linking, the function pointer is |
4149 | initialised to point to a special stub stored at the | |
8dea1268 AM |
4150 | end of the .plt. This is not done for plt entries |
4151 | with a base-relative dynamic relocation. */ | |
47d89dba AM |
4152 | value = (hplink->splt->output_offset |
4153 | + hplink->splt->output_section->vma | |
4154 | + hplink->splt->_raw_size | |
4155 | - sizeof (plt_stub) | |
4156 | + PLT_STUB_ENTRY); | |
74d1c347 AM |
4157 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT); |
4158 | rel.r_addend = 0; | |
4159 | } | |
4160 | else | |
4161 | { | |
4162 | /* This symbol has been marked to become local, and is | |
4163 | used by a plabel so must be kept in the .plt. */ | |
4164 | rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
4165 | rel.r_addend = value; | |
4166 | } | |
30667bf3 AM |
4167 | |
4168 | bfd_elf32_swap_reloca_out (hplink->splt->output_section->owner, | |
4169 | &rel, | |
4170 | ((Elf32_External_Rela *) | |
4171 | hplink->srelplt->contents | |
4172 | + hplink->srelplt->reloc_count)); | |
4173 | hplink->srelplt->reloc_count++; | |
4174 | } | |
4175 | ||
47d89dba AM |
4176 | bfd_put_32 (hplink->splt->owner, |
4177 | value, | |
4178 | hplink->splt->contents + h->plt.offset); | |
4179 | bfd_put_32 (hplink->splt->owner, | |
4180 | elf_gp (hplink->splt->output_section->owner), | |
4181 | hplink->splt->contents + h->plt.offset + 4); | |
4182 | if (PLABEL_PLT_ENTRY_SIZE != PLT_ENTRY_SIZE | |
4183 | && ((struct elf32_hppa_link_hash_entry *) h)->plabel | |
4184 | && h->dynindx != -1) | |
4185 | { | |
4186 | memset (hplink->splt->contents + h->plt.offset + 8, | |
4187 | 0, PLABEL_PLT_ENTRY_SIZE - PLT_ENTRY_SIZE); | |
4188 | } | |
4189 | ||
30667bf3 AM |
4190 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
4191 | { | |
4192 | /* Mark the symbol as undefined, rather than as defined in | |
4193 | the .plt section. Leave the value alone. */ | |
4194 | sym->st_shndx = SHN_UNDEF; | |
4195 | } | |
4196 | } | |
edd21aca | 4197 | |
30667bf3 AM |
4198 | if (h->got.offset != (bfd_vma) -1) |
4199 | { | |
4200 | Elf_Internal_Rela rel; | |
4201 | ||
4202 | /* This symbol has an entry in the global offset table. Set it | |
4203 | up. */ | |
4204 | ||
4205 | rel.r_offset = ((h->got.offset &~ (bfd_vma) 1) | |
4206 | + hplink->sgot->output_offset | |
4207 | + hplink->sgot->output_section->vma); | |
4208 | ||
4dc86686 AM |
4209 | /* If this is a -Bsymbolic link and the symbol is defined |
4210 | locally or was forced to be local because of a version file, | |
4211 | we just want to emit a RELATIVE reloc. The entry in the | |
4212 | global offset table will already have been initialized in the | |
4213 | relocate_section function. */ | |
4214 | if (info->shared | |
4215 | && (info->symbolic || h->dynindx == -1) | |
4216 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
30667bf3 | 4217 | { |
74d1c347 | 4218 | rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
4219 | rel.r_addend = (h->root.u.def.value |
4220 | + h->root.u.def.section->output_offset | |
4221 | + h->root.u.def.section->output_section->vma); | |
4222 | } | |
4223 | else | |
4224 | { | |
49e9d0d3 AM |
4225 | if ((h->got.offset & 1) != 0) |
4226 | abort (); | |
30667bf3 AM |
4227 | bfd_put_32 (output_bfd, (bfd_vma) 0, |
4228 | hplink->sgot->contents + h->got.offset); | |
4229 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32); | |
4230 | rel.r_addend = 0; | |
4231 | } | |
edd21aca | 4232 | |
30667bf3 AM |
4233 | bfd_elf32_swap_reloca_out (output_bfd, &rel, |
4234 | ((Elf32_External_Rela *) | |
4235 | hplink->srelgot->contents | |
4236 | + hplink->srelgot->reloc_count)); | |
4237 | ++hplink->srelgot->reloc_count; | |
4238 | } | |
edd21aca | 4239 | |
30667bf3 AM |
4240 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
4241 | { | |
4242 | asection *s; | |
4243 | Elf_Internal_Rela rel; | |
4244 | ||
4245 | /* This symbol needs a copy reloc. Set it up. */ | |
4246 | ||
49e9d0d3 AM |
4247 | if (! (h->dynindx != -1 |
4248 | && (h->root.type == bfd_link_hash_defined | |
4249 | || h->root.type == bfd_link_hash_defweak))) | |
4250 | abort (); | |
30667bf3 AM |
4251 | |
4252 | s = hplink->srelbss; | |
4253 | ||
4254 | rel.r_offset = (h->root.u.def.value | |
4255 | + h->root.u.def.section->output_offset | |
4256 | + h->root.u.def.section->output_section->vma); | |
4257 | rel.r_addend = 0; | |
4258 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY); | |
4259 | bfd_elf32_swap_reloca_out (output_bfd, &rel, | |
4260 | ((Elf32_External_Rela *) s->contents | |
4261 | + s->reloc_count)); | |
4262 | ++s->reloc_count; | |
4263 | } | |
4264 | ||
4265 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
4266 | if (h->root.root.string[0] == '_' | |
4267 | && (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
4268 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)) | |
4269 | { | |
4270 | sym->st_shndx = SHN_ABS; | |
4271 | } | |
4272 | ||
4273 | return true; | |
4274 | } | |
4275 | ||
30667bf3 AM |
4276 | /* Finish up the dynamic sections. */ |
4277 | ||
4278 | static boolean | |
4279 | elf32_hppa_finish_dynamic_sections (output_bfd, info) | |
4280 | bfd *output_bfd; | |
4281 | struct bfd_link_info *info; | |
4282 | { | |
4283 | bfd *dynobj; | |
4284 | struct elf32_hppa_link_hash_table *hplink; | |
4285 | asection *sdyn; | |
4286 | ||
30667bf3 | 4287 | hplink = hppa_link_hash_table (info); |
74d1c347 | 4288 | dynobj = hplink->root.dynobj; |
30667bf3 AM |
4289 | |
4290 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4291 | ||
74d1c347 | 4292 | if (hplink->root.dynamic_sections_created) |
30667bf3 AM |
4293 | { |
4294 | Elf32_External_Dyn *dyncon, *dynconend; | |
4295 | ||
49e9d0d3 AM |
4296 | if (sdyn == NULL) |
4297 | abort (); | |
30667bf3 AM |
4298 | |
4299 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
4300 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4301 | for (; dyncon < dynconend; dyncon++) | |
edd21aca | 4302 | { |
30667bf3 AM |
4303 | Elf_Internal_Dyn dyn; |
4304 | asection *s; | |
4305 | ||
4306 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4307 | ||
4308 | switch (dyn.d_tag) | |
4309 | { | |
4310 | default: | |
4311 | break; | |
4312 | ||
4313 | case DT_PLTGOT: | |
4314 | /* Use PLTGOT to set the GOT register. */ | |
4315 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
4316 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
4317 | break; | |
4318 | ||
4319 | case DT_JMPREL: | |
4320 | s = hplink->srelplt; | |
4321 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; | |
4322 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
4323 | break; | |
4324 | ||
4325 | case DT_PLTRELSZ: | |
4326 | s = hplink->srelplt; | |
4327 | if (s->_cooked_size != 0) | |
4328 | dyn.d_un.d_val = s->_cooked_size; | |
4329 | else | |
4330 | dyn.d_un.d_val = s->_raw_size; | |
4331 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
4332 | break; | |
4333 | } | |
edd21aca | 4334 | } |
252b5132 | 4335 | } |
edd21aca | 4336 | |
b64977c5 | 4337 | if (hplink->sgot != NULL && hplink->sgot->_raw_size != 0) |
30667bf3 | 4338 | { |
74d1c347 AM |
4339 | /* Fill in the first entry in the global offset table. |
4340 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 AM |
4341 | bfd_put_32 (output_bfd, |
4342 | (sdyn != NULL | |
4343 | ? sdyn->output_section->vma + sdyn->output_offset | |
4344 | : (bfd_vma) 0), | |
4345 | hplink->sgot->contents); | |
4346 | ||
74d1c347 | 4347 | /* The second entry is reserved for use by the dynamic linker. */ |
47d89dba | 4348 | memset (hplink->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4349 | |
30667bf3 | 4350 | /* Set .got entry size. */ |
74d1c347 AM |
4351 | elf_section_data (hplink->sgot->output_section) |
4352 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; | |
30667bf3 AM |
4353 | } |
4354 | ||
b64977c5 | 4355 | if (hplink->splt != NULL && hplink->splt->_raw_size != 0) |
47d89dba AM |
4356 | { |
4357 | /* Set plt entry size. */ | |
4358 | elf_section_data (hplink->splt->output_section) | |
4359 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; | |
4360 | ||
4361 | if (hplink->need_plt_stub) | |
4362 | { | |
4363 | /* Set up the .plt stub. */ | |
4364 | memcpy (hplink->splt->contents | |
4365 | + hplink->splt->_raw_size - sizeof (plt_stub), | |
4366 | plt_stub, sizeof (plt_stub)); | |
4367 | ||
4368 | if ((hplink->splt->output_offset | |
4369 | + hplink->splt->output_section->vma | |
4370 | + hplink->splt->_raw_size) | |
4371 | != (hplink->sgot->output_offset | |
4372 | + hplink->sgot->output_section->vma)) | |
4373 | { | |
4374 | (*_bfd_error_handler) | |
4375 | (_(".got section not immediately after .plt section")); | |
4376 | return false; | |
4377 | } | |
4378 | } | |
4379 | } | |
30667bf3 | 4380 | |
252b5132 | 4381 | return true; |
30667bf3 | 4382 | } |
252b5132 | 4383 | |
d952f17a AM |
4384 | /* Tweak the OSABI field of the elf header. */ |
4385 | ||
4386 | static void | |
4387 | elf32_hppa_post_process_headers (abfd, link_info) | |
4388 | bfd *abfd; | |
4389 | struct bfd_link_info *link_info ATTRIBUTE_UNUSED; | |
4390 | { | |
4391 | Elf_Internal_Ehdr * i_ehdrp; | |
4392 | ||
4393 | i_ehdrp = elf_elfheader (abfd); | |
4394 | ||
4395 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
4396 | { | |
4397 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
4398 | } | |
4399 | else | |
4400 | { | |
4401 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; | |
4402 | } | |
4403 | } | |
4404 | ||
30667bf3 AM |
4405 | /* Called when writing out an object file to decide the type of a |
4406 | symbol. */ | |
4407 | static int | |
4408 | elf32_hppa_elf_get_symbol_type (elf_sym, type) | |
4409 | Elf_Internal_Sym *elf_sym; | |
4410 | int type; | |
4411 | { | |
4412 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4413 | return STT_PARISC_MILLI; | |
4414 | else | |
4415 | return type; | |
252b5132 RH |
4416 | } |
4417 | ||
4418 | /* Misc BFD support code. */ | |
30667bf3 AM |
4419 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4420 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4421 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4422 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4423 | |
252b5132 | 4424 | /* Stuff for the BFD linker. */ |
c46b7515 | 4425 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 AM |
4426 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
4427 | #define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook | |
4428 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol | |
4429 | #define elf_backend_check_relocs elf32_hppa_check_relocs | |
4430 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4431 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4432 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4433 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4434 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4435 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4436 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4437 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4438 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
4439 | #define elf_backend_object_p elf32_hppa_object_p | |
4440 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d952f17a | 4441 | #define elf_backend_post_process_headers elf32_hppa_post_process_headers |
30667bf3 AM |
4442 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
4443 | ||
4444 | #define elf_backend_can_gc_sections 1 | |
4445 | #define elf_backend_plt_alignment 2 | |
4446 | #define elf_backend_want_got_plt 0 | |
4447 | #define elf_backend_plt_readonly 0 | |
4448 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4449 | #define elf_backend_got_header_size 8 |
252b5132 RH |
4450 | |
4451 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4452 | #define TARGET_BIG_NAME "elf32-hppa" | |
4453 | #define ELF_ARCH bfd_arch_hppa | |
4454 | #define ELF_MACHINE_CODE EM_PARISC | |
4455 | #define ELF_MAXPAGESIZE 0x1000 | |
4456 | ||
4457 | #include "elf32-target.h" | |
d952f17a AM |
4458 | |
4459 | #undef TARGET_BIG_SYM | |
4460 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec | |
4461 | #undef TARGET_BIG_NAME | |
4462 | #define TARGET_BIG_NAME "elf32-hppa-linux" | |
4463 | ||
4464 | #define INCLUDED_TARGET_FILE 1 | |
4465 | #include "elf32-target.h" |