Commit | Line | Data |
---|---|---|
252b5132 | 1 | /* BFD back-end for HP PA-RISC ELF files. |
e5094212 | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001, |
acc990f2 | 3 | 2002, 2003 Free Software Foundation, Inc. |
252b5132 | 4 | |
30667bf3 | 5 | Original code by |
252b5132 RH |
6 | Center for Software Science |
7 | Department of Computer Science | |
8 | University of Utah | |
30667bf3 | 9 | Largely rewritten by Alan Modra <alan@linuxcare.com.au> |
252b5132 | 10 | |
ae9a127f | 11 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 12 | |
ae9a127f NC |
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. | |
252b5132 | 17 | |
ae9a127f NC |
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. | |
252b5132 | 22 | |
ae9a127f NC |
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. */ | |
252b5132 RH |
26 | |
27 | #include "bfd.h" | |
28 | #include "sysdep.h" | |
252b5132 RH |
29 | #include "libbfd.h" |
30 | #include "elf-bfd.h" | |
9e103c9c JL |
31 | #include "elf/hppa.h" |
32 | #include "libhppa.h" | |
33 | #include "elf32-hppa.h" | |
34 | #define ARCH_SIZE 32 | |
edd21aca | 35 | #include "elf32-hppa.h" |
189c6563 | 36 | #include "elf-hppa.h" |
9e103c9c | 37 | |
74d1c347 AM |
38 | /* In order to gain some understanding of code in this file without |
39 | knowing all the intricate details of the linker, note the | |
40 | following: | |
41 | ||
42 | Functions named elf32_hppa_* are called by external routines, other | |
43 | functions are only called locally. elf32_hppa_* functions appear | |
44 | in this file more or less in the order in which they are called | |
45 | from external routines. eg. elf32_hppa_check_relocs is called | |
46 | early in the link process, elf32_hppa_finish_dynamic_sections is | |
47 | one of the last functions. */ | |
48 | ||
edd21aca | 49 | /* We use two hash tables to hold information for linking PA ELF objects. |
252b5132 RH |
50 | |
51 | The first is the elf32_hppa_link_hash_table which is derived | |
52 | from the standard ELF linker hash table. We use this as a place to | |
53 | attach other hash tables and static information. | |
54 | ||
55 | The second is the stub hash table which is derived from the | |
56 | base BFD hash table. The stub hash table holds the information | |
30667bf3 AM |
57 | necessary to build the linker stubs during a link. |
58 | ||
59 | There are a number of different stubs generated by the linker. | |
60 | ||
61 | Long branch stub: | |
62 | : ldil LR'X,%r1 | |
63 | : be,n RR'X(%sr4,%r1) | |
64 | ||
65 | PIC long branch stub: | |
66 | : b,l .+8,%r1 | |
3ee1d854 AM |
67 | : addil LR'X - ($PIC_pcrel$0 - 4),%r1 |
68 | : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1) | |
30667bf3 AM |
69 | |
70 | Import stub to call shared library routine from normal object file | |
71 | (single sub-space version) | |
3ee1d854 AM |
72 | : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point |
73 | : ldw RR'lt_ptr+ltoff(%r1),%r21 | |
46fe4e66 | 74 | : bv %r0(%r21) |
3ee1d854 | 75 | : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. |
30667bf3 AM |
76 | |
77 | Import stub to call shared library routine from shared library | |
78 | (single sub-space version) | |
3ee1d854 AM |
79 | : addil LR'ltoff,%r19 ; get procedure entry point |
80 | : ldw RR'ltoff(%r1),%r21 | |
46fe4e66 | 81 | : bv %r0(%r21) |
3ee1d854 | 82 | : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. |
30667bf3 AM |
83 | |
84 | Import stub to call shared library routine from normal object file | |
85 | (multiple sub-space support) | |
3ee1d854 AM |
86 | : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point |
87 | : ldw RR'lt_ptr+ltoff(%r1),%r21 | |
88 | : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. | |
30667bf3 AM |
89 | : ldsid (%r21),%r1 |
90 | : mtsp %r1,%sr0 | |
91 | : be 0(%sr0,%r21) ; branch to target | |
92 | : stw %rp,-24(%sp) ; save rp | |
93 | ||
94 | Import stub to call shared library routine from shared library | |
95 | (multiple sub-space support) | |
3ee1d854 AM |
96 | : addil LR'ltoff,%r19 ; get procedure entry point |
97 | : ldw RR'ltoff(%r1),%r21 | |
98 | : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. | |
30667bf3 AM |
99 | : ldsid (%r21),%r1 |
100 | : mtsp %r1,%sr0 | |
101 | : be 0(%sr0,%r21) ; branch to target | |
102 | : stw %rp,-24(%sp) ; save rp | |
103 | ||
104 | Export stub to return from shared lib routine (multiple sub-space support) | |
105 | One of these is created for each exported procedure in a shared | |
106 | library (and stored in the shared lib). Shared lib routines are | |
107 | called via the first instruction in the export stub so that we can | |
108 | do an inter-space return. Not required for single sub-space. | |
109 | : bl,n X,%rp ; trap the return | |
110 | : nop | |
111 | : ldw -24(%sp),%rp ; restore the original rp | |
112 | : ldsid (%rp),%r1 | |
113 | : mtsp %r1,%sr0 | |
ae9a127f | 114 | : be,n 0(%sr0,%rp) ; inter-space return. */ |
30667bf3 AM |
115 | |
116 | #define PLT_ENTRY_SIZE 8 | |
117 | #define GOT_ENTRY_SIZE 4 | |
118 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
119 | ||
47d89dba AM |
120 | static const bfd_byte plt_stub[] = |
121 | { | |
122 | 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */ | |
123 | 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */ | |
124 | 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */ | |
125 | #define PLT_STUB_ENTRY (3*4) | |
126 | 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */ | |
127 | 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */ | |
128 | 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */ | |
129 | 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */ | |
130 | }; | |
131 | ||
30667bf3 AM |
132 | /* Section name for stubs is the associated section name plus this |
133 | string. */ | |
134 | #define STUB_SUFFIX ".stub" | |
135 | ||
98ceb8ce AM |
136 | /* We don't need to copy certain PC- or GP-relative dynamic relocs |
137 | into a shared object's dynamic section. All the relocs of the | |
138 | limited class we are interested in, are absolute. */ | |
139 | #ifndef RELATIVE_DYNRELOCS | |
140 | #define RELATIVE_DYNRELOCS 0 | |
446f2863 | 141 | #define IS_ABSOLUTE_RELOC(r_type) 1 |
30667bf3 AM |
142 | #endif |
143 | ||
30667bf3 AM |
144 | enum elf32_hppa_stub_type { |
145 | hppa_stub_long_branch, | |
146 | hppa_stub_long_branch_shared, | |
147 | hppa_stub_import, | |
148 | hppa_stub_import_shared, | |
149 | hppa_stub_export, | |
150 | hppa_stub_none | |
151 | }; | |
152 | ||
30667bf3 | 153 | struct elf32_hppa_stub_hash_entry { |
252b5132 | 154 | |
edd21aca | 155 | /* Base hash table entry structure. */ |
252b5132 RH |
156 | struct bfd_hash_entry root; |
157 | ||
edd21aca AM |
158 | /* The stub section. */ |
159 | asection *stub_sec; | |
160 | ||
161 | /* Offset within stub_sec of the beginning of this stub. */ | |
30667bf3 | 162 | bfd_vma stub_offset; |
252b5132 RH |
163 | |
164 | /* Given the symbol's value and its section we can determine its final | |
165 | value when building the stubs (so the stub knows where to jump. */ | |
30667bf3 | 166 | bfd_vma target_value; |
252b5132 | 167 | asection *target_section; |
30667bf3 AM |
168 | |
169 | enum elf32_hppa_stub_type stub_type; | |
170 | ||
171 | /* The symbol table entry, if any, that this was derived from. */ | |
172 | struct elf32_hppa_link_hash_entry *h; | |
173 | ||
25f72752 AM |
174 | /* Where this stub is being called from, or, in the case of combined |
175 | stub sections, the first input section in the group. */ | |
176 | asection *id_sec; | |
252b5132 RH |
177 | }; |
178 | ||
30667bf3 AM |
179 | struct elf32_hppa_link_hash_entry { |
180 | ||
181 | struct elf_link_hash_entry elf; | |
182 | ||
183 | /* A pointer to the most recently used stub hash entry against this | |
184 | symbol. */ | |
185 | struct elf32_hppa_stub_hash_entry *stub_cache; | |
186 | ||
30667bf3 AM |
187 | /* Used to count relocations for delayed sizing of relocation |
188 | sections. */ | |
189 | struct elf32_hppa_dyn_reloc_entry { | |
190 | ||
191 | /* Next relocation in the chain. */ | |
192 | struct elf32_hppa_dyn_reloc_entry *next; | |
193 | ||
98ceb8ce AM |
194 | /* The input section of the reloc. */ |
195 | asection *sec; | |
30667bf3 AM |
196 | |
197 | /* Number of relocs copied in this section. */ | |
198 | bfd_size_type count; | |
98ceb8ce AM |
199 | |
200 | #if RELATIVE_DYNRELOCS | |
201 | /* Number of relative relocs copied for the input section. */ | |
202 | bfd_size_type relative_count; | |
203 | #endif | |
204 | } *dyn_relocs; | |
30667bf3 | 205 | |
74d1c347 AM |
206 | /* Set if this symbol is used by a plabel reloc. */ |
207 | unsigned int plabel:1; | |
30667bf3 AM |
208 | }; |
209 | ||
30667bf3 AM |
210 | struct elf32_hppa_link_hash_table { |
211 | ||
252b5132 | 212 | /* The main hash table. */ |
ebe50bae | 213 | struct elf_link_hash_table elf; |
252b5132 RH |
214 | |
215 | /* The stub hash table. */ | |
edd21aca | 216 | struct bfd_hash_table stub_hash_table; |
252b5132 | 217 | |
30667bf3 AM |
218 | /* Linker stub bfd. */ |
219 | bfd *stub_bfd; | |
220 | ||
30667bf3 | 221 | /* Linker call-backs. */ |
c39a58e6 AM |
222 | asection * (*add_stub_section) (const char *, asection *); |
223 | void (*layout_sections_again) (void); | |
30667bf3 | 224 | |
25f72752 AM |
225 | /* Array to keep track of which stub sections have been created, and |
226 | information on stub grouping. */ | |
227 | struct map_stub { | |
228 | /* This is the section to which stubs in the group will be | |
229 | attached. */ | |
230 | asection *link_sec; | |
231 | /* The stub section. */ | |
232 | asection *stub_sec; | |
25f72752 | 233 | } *stub_group; |
30667bf3 | 234 | |
b4655ea9 AM |
235 | /* Assorted information used by elf32_hppa_size_stubs. */ |
236 | unsigned int bfd_count; | |
237 | int top_index; | |
238 | asection **input_list; | |
239 | Elf_Internal_Sym **all_local_syms; | |
240 | ||
30667bf3 AM |
241 | /* Short-cuts to get to dynamic linker sections. */ |
242 | asection *sgot; | |
243 | asection *srelgot; | |
244 | asection *splt; | |
245 | asection *srelplt; | |
246 | asection *sdynbss; | |
247 | asection *srelbss; | |
47d89dba | 248 | |
c46b7515 AM |
249 | /* Used during a final link to store the base of the text and data |
250 | segments so that we can perform SEGREL relocations. */ | |
251 | bfd_vma text_segment_base; | |
252 | bfd_vma data_segment_base; | |
253 | ||
47d89dba AM |
254 | /* Whether we support multiple sub-spaces for shared libs. */ |
255 | unsigned int multi_subspace:1; | |
256 | ||
067fa4a6 | 257 | /* Flags set when various size branches are detected. Used to |
47d89dba AM |
258 | select suitable defaults for the stub group size. */ |
259 | unsigned int has_12bit_branch:1; | |
260 | unsigned int has_17bit_branch:1; | |
067fa4a6 | 261 | unsigned int has_22bit_branch:1; |
47d89dba AM |
262 | |
263 | /* Set if we need a .plt stub to support lazy dynamic linking. */ | |
264 | unsigned int need_plt_stub:1; | |
ec338859 AM |
265 | |
266 | /* Small local sym to section mapping cache. */ | |
267 | struct sym_sec_cache sym_sec; | |
252b5132 RH |
268 | }; |
269 | ||
30667bf3 AM |
270 | /* Various hash macros and functions. */ |
271 | #define hppa_link_hash_table(p) \ | |
edd21aca | 272 | ((struct elf32_hppa_link_hash_table *) ((p)->hash)) |
252b5132 | 273 | |
30667bf3 AM |
274 | #define hppa_stub_hash_lookup(table, string, create, copy) \ |
275 | ((struct elf32_hppa_stub_hash_entry *) \ | |
276 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
277 | ||
252b5132 RH |
278 | /* Assorted hash table functions. */ |
279 | ||
280 | /* Initialize an entry in the stub hash table. */ | |
281 | ||
282 | static struct bfd_hash_entry * | |
c39a58e6 AM |
283 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
284 | struct bfd_hash_table *table, | |
285 | const char *string) | |
252b5132 | 286 | { |
252b5132 RH |
287 | /* Allocate the structure if it has not already been allocated by a |
288 | subclass. */ | |
ebe50bae | 289 | if (entry == NULL) |
30667bf3 | 290 | { |
ebe50bae AM |
291 | entry = bfd_hash_allocate (table, |
292 | sizeof (struct elf32_hppa_stub_hash_entry)); | |
293 | if (entry == NULL) | |
294 | return entry; | |
30667bf3 | 295 | } |
252b5132 RH |
296 | |
297 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
298 | entry = bfd_hash_newfunc (entry, table, string); |
299 | if (entry != NULL) | |
252b5132 | 300 | { |
ebe50bae AM |
301 | struct elf32_hppa_stub_hash_entry *eh; |
302 | ||
252b5132 | 303 | /* Initialize the local fields. */ |
ebe50bae AM |
304 | eh = (struct elf32_hppa_stub_hash_entry *) entry; |
305 | eh->stub_sec = NULL; | |
306 | eh->stub_offset = 0; | |
307 | eh->target_value = 0; | |
308 | eh->target_section = NULL; | |
309 | eh->stub_type = hppa_stub_long_branch; | |
310 | eh->h = NULL; | |
311 | eh->id_sec = NULL; | |
30667bf3 AM |
312 | } |
313 | ||
ebe50bae | 314 | return entry; |
30667bf3 AM |
315 | } |
316 | ||
30667bf3 AM |
317 | /* Initialize an entry in the link hash table. */ |
318 | ||
319 | static struct bfd_hash_entry * | |
c39a58e6 AM |
320 | hppa_link_hash_newfunc (struct bfd_hash_entry *entry, |
321 | struct bfd_hash_table *table, | |
322 | const char *string) | |
30667bf3 | 323 | { |
30667bf3 AM |
324 | /* Allocate the structure if it has not already been allocated by a |
325 | subclass. */ | |
ebe50bae | 326 | if (entry == NULL) |
30667bf3 | 327 | { |
ebe50bae AM |
328 | entry = bfd_hash_allocate (table, |
329 | sizeof (struct elf32_hppa_link_hash_entry)); | |
330 | if (entry == NULL) | |
331 | return entry; | |
30667bf3 AM |
332 | } |
333 | ||
334 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
335 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
336 | if (entry != NULL) | |
30667bf3 | 337 | { |
ebe50bae AM |
338 | struct elf32_hppa_link_hash_entry *eh; |
339 | ||
30667bf3 | 340 | /* Initialize the local fields. */ |
ebe50bae AM |
341 | eh = (struct elf32_hppa_link_hash_entry *) entry; |
342 | eh->stub_cache = NULL; | |
343 | eh->dyn_relocs = NULL; | |
ebe50bae | 344 | eh->plabel = 0; |
252b5132 RH |
345 | } |
346 | ||
ebe50bae | 347 | return entry; |
252b5132 RH |
348 | } |
349 | ||
252b5132 RH |
350 | /* Create the derived linker hash table. The PA ELF port uses the derived |
351 | hash table to keep information specific to the PA ELF linker (without | |
352 | using static variables). */ | |
353 | ||
354 | static struct bfd_link_hash_table * | |
c39a58e6 | 355 | elf32_hppa_link_hash_table_create (bfd *abfd) |
252b5132 RH |
356 | { |
357 | struct elf32_hppa_link_hash_table *ret; | |
dc810e39 | 358 | bfd_size_type amt = sizeof (*ret); |
252b5132 | 359 | |
c39a58e6 | 360 | ret = bfd_malloc (amt); |
252b5132 RH |
361 | if (ret == NULL) |
362 | return NULL; | |
edd21aca | 363 | |
ebe50bae | 364 | if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, hppa_link_hash_newfunc)) |
252b5132 | 365 | { |
e2d34d7d | 366 | free (ret); |
252b5132 RH |
367 | return NULL; |
368 | } | |
edd21aca AM |
369 | |
370 | /* Init the stub hash table too. */ | |
30667bf3 | 371 | if (!bfd_hash_table_init (&ret->stub_hash_table, stub_hash_newfunc)) |
edd21aca AM |
372 | return NULL; |
373 | ||
30667bf3 | 374 | ret->stub_bfd = NULL; |
30667bf3 AM |
375 | ret->add_stub_section = NULL; |
376 | ret->layout_sections_again = NULL; | |
25f72752 | 377 | ret->stub_group = NULL; |
30667bf3 AM |
378 | ret->sgot = NULL; |
379 | ret->srelgot = NULL; | |
380 | ret->splt = NULL; | |
381 | ret->srelplt = NULL; | |
382 | ret->sdynbss = NULL; | |
383 | ret->srelbss = NULL; | |
c46b7515 AM |
384 | ret->text_segment_base = (bfd_vma) -1; |
385 | ret->data_segment_base = (bfd_vma) -1; | |
47d89dba AM |
386 | ret->multi_subspace = 0; |
387 | ret->has_12bit_branch = 0; | |
388 | ret->has_17bit_branch = 0; | |
067fa4a6 | 389 | ret->has_22bit_branch = 0; |
47d89dba | 390 | ret->need_plt_stub = 0; |
ec338859 | 391 | ret->sym_sec.abfd = NULL; |
252b5132 | 392 | |
ebe50bae | 393 | return &ret->elf.root; |
252b5132 RH |
394 | } |
395 | ||
e2d34d7d DJ |
396 | /* Free the derived linker hash table. */ |
397 | ||
398 | static void | |
c39a58e6 | 399 | elf32_hppa_link_hash_table_free (struct bfd_link_hash_table *hash) |
e2d34d7d DJ |
400 | { |
401 | struct elf32_hppa_link_hash_table *ret | |
402 | = (struct elf32_hppa_link_hash_table *) hash; | |
403 | ||
404 | bfd_hash_table_free (&ret->stub_hash_table); | |
405 | _bfd_generic_link_hash_table_free (hash); | |
406 | } | |
407 | ||
30667bf3 AM |
408 | /* Build a name for an entry in the stub hash table. */ |
409 | ||
edd21aca | 410 | static char * |
c39a58e6 AM |
411 | hppa_stub_name (const asection *input_section, |
412 | const asection *sym_sec, | |
413 | const struct elf32_hppa_link_hash_entry *hash, | |
414 | const Elf_Internal_Rela *rel) | |
edd21aca AM |
415 | { |
416 | char *stub_name; | |
dc810e39 | 417 | bfd_size_type len; |
edd21aca | 418 | |
30667bf3 AM |
419 | if (hash) |
420 | { | |
421 | len = 8 + 1 + strlen (hash->elf.root.root.string) + 1 + 8 + 1; | |
422 | stub_name = bfd_malloc (len); | |
423 | if (stub_name != NULL) | |
424 | { | |
425 | sprintf (stub_name, "%08x_%s+%x", | |
426 | input_section->id & 0xffffffff, | |
427 | hash->elf.root.root.string, | |
428 | (int) rel->r_addend & 0xffffffff); | |
429 | } | |
430 | } | |
431 | else | |
edd21aca | 432 | { |
30667bf3 AM |
433 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
434 | stub_name = bfd_malloc (len); | |
435 | if (stub_name != NULL) | |
436 | { | |
437 | sprintf (stub_name, "%08x_%x:%x+%x", | |
438 | input_section->id & 0xffffffff, | |
439 | sym_sec->id & 0xffffffff, | |
440 | (int) ELF32_R_SYM (rel->r_info) & 0xffffffff, | |
441 | (int) rel->r_addend & 0xffffffff); | |
442 | } | |
edd21aca AM |
443 | } |
444 | return stub_name; | |
445 | } | |
252b5132 | 446 | |
30667bf3 AM |
447 | /* Look up an entry in the stub hash. Stub entries are cached because |
448 | creating the stub name takes a bit of time. */ | |
449 | ||
450 | static struct elf32_hppa_stub_hash_entry * | |
c39a58e6 AM |
451 | hppa_get_stub_entry (const asection *input_section, |
452 | const asection *sym_sec, | |
453 | struct elf32_hppa_link_hash_entry *hash, | |
454 | const Elf_Internal_Rela *rel, | |
455 | struct elf32_hppa_link_hash_table *htab) | |
252b5132 | 456 | { |
30667bf3 | 457 | struct elf32_hppa_stub_hash_entry *stub_entry; |
25f72752 AM |
458 | const asection *id_sec; |
459 | ||
460 | /* If this input section is part of a group of sections sharing one | |
461 | stub section, then use the id of the first section in the group. | |
462 | Stub names need to include a section id, as there may well be | |
463 | more than one stub used to reach say, printf, and we need to | |
464 | distinguish between them. */ | |
83c81bfe | 465 | id_sec = htab->stub_group[input_section->id].link_sec; |
edd21aca | 466 | |
30667bf3 AM |
467 | if (hash != NULL && hash->stub_cache != NULL |
468 | && hash->stub_cache->h == hash | |
25f72752 | 469 | && hash->stub_cache->id_sec == id_sec) |
edd21aca | 470 | { |
30667bf3 AM |
471 | stub_entry = hash->stub_cache; |
472 | } | |
473 | else | |
474 | { | |
30667bf3 | 475 | char *stub_name; |
edd21aca | 476 | |
25f72752 | 477 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, rel); |
30667bf3 AM |
478 | if (stub_name == NULL) |
479 | return NULL; | |
edd21aca | 480 | |
83c81bfe | 481 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
b34976b6 | 482 | stub_name, FALSE, FALSE); |
f09ebc7d AM |
483 | if (hash != NULL) |
484 | hash->stub_cache = stub_entry; | |
30667bf3 AM |
485 | |
486 | free (stub_name); | |
edd21aca | 487 | } |
30667bf3 AM |
488 | |
489 | return stub_entry; | |
490 | } | |
491 | ||
30667bf3 AM |
492 | /* Add a new stub entry to the stub hash. Not all fields of the new |
493 | stub entry are initialised. */ | |
494 | ||
495 | static struct elf32_hppa_stub_hash_entry * | |
c39a58e6 AM |
496 | hppa_add_stub (const char *stub_name, |
497 | asection *section, | |
498 | struct elf32_hppa_link_hash_table *htab) | |
30667bf3 | 499 | { |
25f72752 | 500 | asection *link_sec; |
30667bf3 | 501 | asection *stub_sec; |
30667bf3 | 502 | struct elf32_hppa_stub_hash_entry *stub_entry; |
edd21aca | 503 | |
83c81bfe AM |
504 | link_sec = htab->stub_group[section->id].link_sec; |
505 | stub_sec = htab->stub_group[section->id].stub_sec; | |
30667bf3 | 506 | if (stub_sec == NULL) |
edd21aca | 507 | { |
83c81bfe | 508 | stub_sec = htab->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
509 | if (stub_sec == NULL) |
510 | { | |
d4c88bbb | 511 | size_t namelen; |
dc810e39 | 512 | bfd_size_type len; |
30667bf3 AM |
513 | char *s_name; |
514 | ||
d4c88bbb AM |
515 | namelen = strlen (link_sec->name); |
516 | len = namelen + sizeof (STUB_SUFFIX); | |
83c81bfe | 517 | s_name = bfd_alloc (htab->stub_bfd, len); |
30667bf3 AM |
518 | if (s_name == NULL) |
519 | return NULL; | |
520 | ||
d4c88bbb AM |
521 | memcpy (s_name, link_sec->name, namelen); |
522 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
83c81bfe | 523 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
524 | if (stub_sec == NULL) |
525 | return NULL; | |
83c81bfe | 526 | htab->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 527 | } |
83c81bfe | 528 | htab->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 529 | } |
252b5132 | 530 | |
30667bf3 | 531 | /* Enter this entry into the linker stub hash table. */ |
83c81bfe | 532 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, stub_name, |
b34976b6 | 533 | TRUE, FALSE); |
30667bf3 AM |
534 | if (stub_entry == NULL) |
535 | { | |
536 | (*_bfd_error_handler) (_("%s: cannot create stub entry %s"), | |
8f615d07 | 537 | bfd_archive_filename (section->owner), |
30667bf3 AM |
538 | stub_name); |
539 | return NULL; | |
edd21aca AM |
540 | } |
541 | ||
30667bf3 | 542 | stub_entry->stub_sec = stub_sec; |
30667bf3 | 543 | stub_entry->stub_offset = 0; |
25f72752 | 544 | stub_entry->id_sec = link_sec; |
30667bf3 | 545 | return stub_entry; |
edd21aca AM |
546 | } |
547 | ||
30667bf3 AM |
548 | /* Determine the type of stub needed, if any, for a call. */ |
549 | ||
550 | static enum elf32_hppa_stub_type | |
c39a58e6 AM |
551 | hppa_type_of_stub (asection *input_sec, |
552 | const Elf_Internal_Rela *rel, | |
553 | struct elf32_hppa_link_hash_entry *hash, | |
a252afa4 DA |
554 | bfd_vma destination, |
555 | struct bfd_link_info *info) | |
edd21aca | 556 | { |
edd21aca | 557 | bfd_vma location; |
30667bf3 AM |
558 | bfd_vma branch_offset; |
559 | bfd_vma max_branch_offset; | |
560 | unsigned int r_type; | |
561 | ||
562 | if (hash != NULL | |
067fa4a6 | 563 | && hash->elf.plt.offset != (bfd_vma) -1 |
a252afa4 DA |
564 | && hash->elf.dynindx != -1 |
565 | && !hash->plabel | |
566 | && (info->shared | |
567 | || !(hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
568 | || hash->elf.root.type == bfd_link_hash_defweak)) | |
30667bf3 | 569 | { |
067fa4a6 AM |
570 | /* We need an import stub. Decide between hppa_stub_import |
571 | and hppa_stub_import_shared later. */ | |
30667bf3 AM |
572 | return hppa_stub_import; |
573 | } | |
edd21aca | 574 | |
30667bf3 AM |
575 | /* Determine where the call point is. */ |
576 | location = (input_sec->output_offset | |
577 | + input_sec->output_section->vma | |
578 | + rel->r_offset); | |
edd21aca | 579 | |
30667bf3 AM |
580 | branch_offset = destination - location - 8; |
581 | r_type = ELF32_R_TYPE (rel->r_info); | |
edd21aca | 582 | |
30667bf3 AM |
583 | /* Determine if a long branch stub is needed. parisc branch offsets |
584 | are relative to the second instruction past the branch, ie. +8 | |
585 | bytes on from the branch instruction location. The offset is | |
586 | signed and counts in units of 4 bytes. */ | |
587 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 588 | { |
30667bf3 AM |
589 | max_branch_offset = (1 << (17-1)) << 2; |
590 | } | |
591 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
592 | { | |
593 | max_branch_offset = (1 << (12-1)) << 2; | |
594 | } | |
25f72752 | 595 | else /* R_PARISC_PCREL22F. */ |
30667bf3 AM |
596 | { |
597 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
598 | } |
599 | ||
30667bf3 | 600 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
601 | return hppa_stub_long_branch; |
602 | ||
30667bf3 AM |
603 | return hppa_stub_none; |
604 | } | |
edd21aca | 605 | |
30667bf3 AM |
606 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
607 | IN_ARG contains the link info pointer. */ | |
edd21aca | 608 | |
30667bf3 AM |
609 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
610 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 611 | |
30667bf3 | 612 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 613 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 614 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 615 | |
3ee1d854 AM |
616 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
617 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 618 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 619 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 620 | |
3ee1d854 AM |
621 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
622 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 623 | |
30667bf3 AM |
624 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
625 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
626 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
627 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 628 | |
067fa4a6 | 629 | #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */ |
30667bf3 AM |
630 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
631 | #define NOP 0x08000240 /* nop */ | |
632 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
633 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
634 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 635 | |
30667bf3 AM |
636 | #ifndef R19_STUBS |
637 | #define R19_STUBS 1 | |
638 | #endif | |
edd21aca | 639 | |
30667bf3 AM |
640 | #if R19_STUBS |
641 | #define LDW_R1_DLT LDW_R1_R19 | |
642 | #else | |
643 | #define LDW_R1_DLT LDW_R1_DP | |
644 | #endif | |
edd21aca | 645 | |
b34976b6 | 646 | static bfd_boolean |
c39a58e6 | 647 | hppa_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
30667bf3 AM |
648 | { |
649 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
650 | struct bfd_link_info *info; | |
83c81bfe | 651 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
652 | asection *stub_sec; |
653 | bfd *stub_bfd; | |
654 | bfd_byte *loc; | |
655 | bfd_vma sym_value; | |
74d1c347 | 656 | bfd_vma insn; |
8dea1268 | 657 | bfd_vma off; |
74d1c347 | 658 | int val; |
30667bf3 | 659 | int size; |
edd21aca | 660 | |
30667bf3 AM |
661 | /* Massage our args to the form they really have. */ |
662 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
c39a58e6 | 663 | info = in_arg; |
30667bf3 | 664 | |
83c81bfe | 665 | htab = hppa_link_hash_table (info); |
30667bf3 | 666 | stub_sec = stub_entry->stub_sec; |
edd21aca | 667 | |
30667bf3 | 668 | /* Make a note of the offset within the stubs for this entry. */ |
74d1c347 | 669 | stub_entry->stub_offset = stub_sec->_raw_size; |
30667bf3 | 670 | loc = stub_sec->contents + stub_entry->stub_offset; |
252b5132 | 671 | |
30667bf3 AM |
672 | stub_bfd = stub_sec->owner; |
673 | ||
674 | switch (stub_entry->stub_type) | |
675 | { | |
676 | case hppa_stub_long_branch: | |
677 | /* Create the long branch. A long branch is formed with "ldil" | |
678 | loading the upper bits of the target address into a register, | |
679 | then branching with "be" which adds in the lower bits. | |
680 | The "be" has its delay slot nullified. */ | |
681 | sym_value = (stub_entry->target_value | |
682 | + stub_entry->target_section->output_offset | |
683 | + stub_entry->target_section->output_section->vma); | |
684 | ||
c39a58e6 | 685 | val = hppa_field_adjust (sym_value, 0, e_lrsel); |
74d1c347 | 686 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); |
30667bf3 AM |
687 | bfd_put_32 (stub_bfd, insn, loc); |
688 | ||
c39a58e6 | 689 | val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2; |
74d1c347 | 690 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
691 | bfd_put_32 (stub_bfd, insn, loc + 4); |
692 | ||
30667bf3 | 693 | size = 8; |
edd21aca AM |
694 | break; |
695 | ||
30667bf3 AM |
696 | case hppa_stub_long_branch_shared: |
697 | /* Branches are relative. This is where we are going to. */ | |
698 | sym_value = (stub_entry->target_value | |
699 | + stub_entry->target_section->output_offset | |
700 | + stub_entry->target_section->output_section->vma); | |
701 | ||
702 | /* And this is where we are coming from, more or less. */ | |
703 | sym_value -= (stub_entry->stub_offset | |
704 | + stub_sec->output_offset | |
705 | + stub_sec->output_section->vma); | |
706 | ||
74d1c347 | 707 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 708 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 709 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
710 | bfd_put_32 (stub_bfd, insn, loc + 4); |
711 | ||
47d89dba | 712 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 713 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
714 | bfd_put_32 (stub_bfd, insn, loc + 8); |
715 | size = 12; | |
716 | break; | |
edd21aca | 717 | |
30667bf3 AM |
718 | case hppa_stub_import: |
719 | case hppa_stub_import_shared: | |
8dea1268 AM |
720 | off = stub_entry->h->elf.plt.offset; |
721 | if (off >= (bfd_vma) -2) | |
49e9d0d3 | 722 | abort (); |
8dea1268 AM |
723 | |
724 | off &= ~ (bfd_vma) 1; | |
725 | sym_value = (off | |
83c81bfe AM |
726 | + htab->splt->output_offset |
727 | + htab->splt->output_section->vma | |
728 | - elf_gp (htab->splt->output_section->owner)); | |
30667bf3 AM |
729 | |
730 | insn = ADDIL_DP; | |
731 | #if R19_STUBS | |
732 | if (stub_entry->stub_type == hppa_stub_import_shared) | |
733 | insn = ADDIL_R19; | |
734 | #endif | |
c39a58e6 | 735 | val = hppa_field_adjust (sym_value, 0, e_lrsel), |
74d1c347 | 736 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 737 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 738 | |
47d89dba AM |
739 | /* It is critical to use lrsel/rrsel here because we are using |
740 | two different offsets (+0 and +4) from sym_value. If we use | |
741 | lsel/rsel then with unfortunate sym_values we will round | |
742 | sym_value+4 up to the next 2k block leading to a mis-match | |
743 | between the lsel and rsel value. */ | |
c39a58e6 | 744 | val = hppa_field_adjust (sym_value, 0, e_rrsel); |
74d1c347 | 745 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 746 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 747 | |
83c81bfe | 748 | if (htab->multi_subspace) |
30667bf3 | 749 | { |
47d89dba | 750 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 751 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 752 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 753 | |
74d1c347 AM |
754 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
755 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
756 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
757 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 758 | |
30667bf3 AM |
759 | size = 28; |
760 | } | |
761 | else | |
762 | { | |
74d1c347 | 763 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 764 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 765 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 766 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 767 | |
30667bf3 AM |
768 | size = 16; |
769 | } | |
252b5132 | 770 | |
30667bf3 | 771 | break; |
252b5132 | 772 | |
30667bf3 AM |
773 | case hppa_stub_export: |
774 | /* Branches are relative. This is where we are going to. */ | |
775 | sym_value = (stub_entry->target_value | |
776 | + stub_entry->target_section->output_offset | |
777 | + stub_entry->target_section->output_section->vma); | |
252b5132 | 778 | |
30667bf3 AM |
779 | /* And this is where we are coming from. */ |
780 | sym_value -= (stub_entry->stub_offset | |
781 | + stub_sec->output_offset | |
782 | + stub_sec->output_section->vma); | |
edd21aca | 783 | |
067fa4a6 AM |
784 | if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2)) |
785 | && (!htab->has_22bit_branch | |
786 | || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2)))) | |
30667bf3 | 787 | { |
edd21aca | 788 | (*_bfd_error_handler) |
30667bf3 | 789 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
8f615d07 | 790 | bfd_archive_filename (stub_entry->target_section->owner), |
30667bf3 AM |
791 | stub_sec->name, |
792 | (long) stub_entry->stub_offset, | |
793 | stub_entry->root.string); | |
794 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 795 | return FALSE; |
252b5132 | 796 | } |
30667bf3 | 797 | |
74d1c347 | 798 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
067fa4a6 AM |
799 | if (!htab->has_22bit_branch) |
800 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
801 | else | |
802 | insn = hppa_rebuild_insn ((int) BL22_RP, val, 22); | |
30667bf3 AM |
803 | bfd_put_32 (stub_bfd, insn, loc); |
804 | ||
74d1c347 AM |
805 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
806 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
807 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
808 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
809 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
810 | |
811 | /* Point the function symbol at the stub. */ | |
812 | stub_entry->h->elf.root.u.def.section = stub_sec; | |
74d1c347 | 813 | stub_entry->h->elf.root.u.def.value = stub_sec->_raw_size; |
30667bf3 AM |
814 | |
815 | size = 24; | |
816 | break; | |
817 | ||
818 | default: | |
819 | BFD_FAIL (); | |
b34976b6 | 820 | return FALSE; |
252b5132 RH |
821 | } |
822 | ||
74d1c347 | 823 | stub_sec->_raw_size += size; |
b34976b6 | 824 | return TRUE; |
252b5132 RH |
825 | } |
826 | ||
30667bf3 AM |
827 | #undef LDIL_R1 |
828 | #undef BE_SR4_R1 | |
829 | #undef BL_R1 | |
830 | #undef ADDIL_R1 | |
831 | #undef DEPI_R1 | |
30667bf3 AM |
832 | #undef LDW_R1_R21 |
833 | #undef LDW_R1_DLT | |
834 | #undef LDW_R1_R19 | |
835 | #undef ADDIL_R19 | |
836 | #undef LDW_R1_DP | |
837 | #undef LDSID_R21_R1 | |
838 | #undef MTSP_R1 | |
839 | #undef BE_SR0_R21 | |
840 | #undef STW_RP | |
841 | #undef BV_R0_R21 | |
842 | #undef BL_RP | |
843 | #undef NOP | |
844 | #undef LDW_RP | |
845 | #undef LDSID_RP_R1 | |
846 | #undef BE_SR0_RP | |
252b5132 | 847 | |
30667bf3 AM |
848 | /* As above, but don't actually build the stub. Just bump offset so |
849 | we know stub section sizes. */ | |
850 | ||
b34976b6 | 851 | static bfd_boolean |
c39a58e6 | 852 | hppa_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
252b5132 | 853 | { |
30667bf3 | 854 | struct elf32_hppa_stub_hash_entry *stub_entry; |
83c81bfe | 855 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
856 | int size; |
857 | ||
858 | /* Massage our args to the form they really have. */ | |
859 | stub_entry = (struct elf32_hppa_stub_hash_entry *) gen_entry; | |
c39a58e6 | 860 | htab = in_arg; |
30667bf3 AM |
861 | |
862 | if (stub_entry->stub_type == hppa_stub_long_branch) | |
98ceb8ce | 863 | size = 8; |
30667bf3 AM |
864 | else if (stub_entry->stub_type == hppa_stub_long_branch_shared) |
865 | size = 12; | |
866 | else if (stub_entry->stub_type == hppa_stub_export) | |
867 | size = 24; | |
74d1c347 | 868 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 869 | { |
83c81bfe | 870 | if (htab->multi_subspace) |
30667bf3 AM |
871 | size = 28; |
872 | else | |
873 | size = 16; | |
874 | } | |
252b5132 | 875 | |
74d1c347 | 876 | stub_entry->stub_sec->_raw_size += size; |
b34976b6 | 877 | return TRUE; |
30667bf3 | 878 | } |
252b5132 | 879 | |
30667bf3 AM |
880 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
881 | Additionally we set the default architecture and machine. */ | |
882 | ||
b34976b6 | 883 | static bfd_boolean |
c39a58e6 | 884 | elf32_hppa_object_p (bfd *abfd) |
30667bf3 | 885 | { |
24a5e751 L |
886 | Elf_Internal_Ehdr * i_ehdrp; |
887 | unsigned int flags; | |
252b5132 | 888 | |
24a5e751 L |
889 | i_ehdrp = elf_elfheader (abfd); |
890 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
891 | { | |
6c21aa76 NC |
892 | /* GCC on hppa-linux produces binaries with OSABI=Linux, |
893 | but the kernel produces corefiles with OSABI=SysV. */ | |
894 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX && | |
895 | i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ | |
b34976b6 | 896 | return FALSE; |
24a5e751 L |
897 | } |
898 | else | |
899 | { | |
900 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
b34976b6 | 901 | return FALSE; |
24a5e751 L |
902 | } |
903 | ||
904 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
905 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
906 | { | |
907 | case EFA_PARISC_1_0: | |
908 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
909 | case EFA_PARISC_1_1: | |
910 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
911 | case EFA_PARISC_2_0: | |
912 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
913 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
914 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
915 | } | |
b34976b6 | 916 | return TRUE; |
252b5132 RH |
917 | } |
918 | ||
30667bf3 AM |
919 | /* Create the .plt and .got sections, and set up our hash table |
920 | short-cuts to various dynamic sections. */ | |
921 | ||
b34976b6 | 922 | static bfd_boolean |
c39a58e6 | 923 | elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 924 | { |
83c81bfe | 925 | struct elf32_hppa_link_hash_table *htab; |
edd21aca | 926 | |
30667bf3 | 927 | /* Don't try to create the .plt and .got twice. */ |
83c81bfe AM |
928 | htab = hppa_link_hash_table (info); |
929 | if (htab->splt != NULL) | |
b34976b6 | 930 | return TRUE; |
edd21aca | 931 | |
30667bf3 AM |
932 | /* Call the generic code to do most of the work. */ |
933 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
b34976b6 | 934 | return FALSE; |
252b5132 | 935 | |
83c81bfe AM |
936 | htab->splt = bfd_get_section_by_name (abfd, ".plt"); |
937 | htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
30667bf3 | 938 | |
83c81bfe AM |
939 | htab->sgot = bfd_get_section_by_name (abfd, ".got"); |
940 | htab->srelgot = bfd_make_section (abfd, ".rela.got"); | |
941 | if (htab->srelgot == NULL | |
942 | || ! bfd_set_section_flags (abfd, htab->srelgot, | |
30667bf3 AM |
943 | (SEC_ALLOC |
944 | | SEC_LOAD | |
945 | | SEC_HAS_CONTENTS | |
946 | | SEC_IN_MEMORY | |
947 | | SEC_LINKER_CREATED | |
948 | | SEC_READONLY)) | |
83c81bfe | 949 | || ! bfd_set_section_alignment (abfd, htab->srelgot, 2)) |
b34976b6 | 950 | return FALSE; |
edd21aca | 951 | |
83c81bfe AM |
952 | htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
953 | htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
30667bf3 | 954 | |
b34976b6 | 955 | return TRUE; |
30667bf3 AM |
956 | } |
957 | ||
ebe50bae AM |
958 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
959 | ||
51b64d56 | 960 | static void |
9c5bfbb7 | 961 | elf32_hppa_copy_indirect_symbol (const struct elf_backend_data *bed, |
c39a58e6 AM |
962 | struct elf_link_hash_entry *dir, |
963 | struct elf_link_hash_entry *ind) | |
ebe50bae AM |
964 | { |
965 | struct elf32_hppa_link_hash_entry *edir, *eind; | |
966 | ||
967 | edir = (struct elf32_hppa_link_hash_entry *) dir; | |
968 | eind = (struct elf32_hppa_link_hash_entry *) ind; | |
969 | ||
bbd7ec4a | 970 | if (eind->dyn_relocs != NULL) |
ebe50bae | 971 | { |
bbd7ec4a AM |
972 | if (edir->dyn_relocs != NULL) |
973 | { | |
974 | struct elf32_hppa_dyn_reloc_entry **pp; | |
975 | struct elf32_hppa_dyn_reloc_entry *p; | |
976 | ||
1e370bd2 | 977 | if (ind->root.type == bfd_link_hash_indirect) |
bbd7ec4a AM |
978 | abort (); |
979 | ||
980 | /* Add reloc counts against the weak sym to the strong sym | |
981 | list. Merge any entries against the same section. */ | |
982 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
983 | { | |
984 | struct elf32_hppa_dyn_reloc_entry *q; | |
985 | ||
986 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
987 | if (q->sec == p->sec) | |
988 | { | |
989 | #if RELATIVE_DYNRELOCS | |
990 | q->relative_count += p->relative_count; | |
991 | #endif | |
992 | q->count += p->count; | |
993 | *pp = p->next; | |
994 | break; | |
995 | } | |
996 | if (q == NULL) | |
997 | pp = &p->next; | |
998 | } | |
999 | *pp = edir->dyn_relocs; | |
1000 | } | |
1001 | ||
ebe50bae AM |
1002 | edir->dyn_relocs = eind->dyn_relocs; |
1003 | eind->dyn_relocs = NULL; | |
1004 | } | |
ebe50bae | 1005 | |
b48fa14c | 1006 | _bfd_elf_link_hash_copy_indirect (bed, dir, ind); |
ebe50bae AM |
1007 | } |
1008 | ||
30667bf3 | 1009 | /* Look through the relocs for a section during the first phase, and |
3ac8354b AM |
1010 | calculate needed space in the global offset table, procedure linkage |
1011 | table, and dynamic reloc sections. At this point we haven't | |
1012 | necessarily read all the input files. */ | |
252b5132 | 1013 | |
b34976b6 | 1014 | static bfd_boolean |
c39a58e6 AM |
1015 | elf32_hppa_check_relocs (bfd *abfd, |
1016 | struct bfd_link_info *info, | |
1017 | asection *sec, | |
1018 | const Elf_Internal_Rela *relocs) | |
252b5132 | 1019 | { |
30667bf3 AM |
1020 | Elf_Internal_Shdr *symtab_hdr; |
1021 | struct elf_link_hash_entry **sym_hashes; | |
30667bf3 AM |
1022 | const Elf_Internal_Rela *rel; |
1023 | const Elf_Internal_Rela *rel_end; | |
83c81bfe | 1024 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1025 | asection *sreloc; |
1026 | asection *stubreloc; | |
1027 | ||
1049f94e | 1028 | if (info->relocatable) |
b34976b6 | 1029 | return TRUE; |
30667bf3 | 1030 | |
83c81bfe | 1031 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1032 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1033 | sym_hashes = elf_sym_hashes (abfd); | |
30667bf3 AM |
1034 | sreloc = NULL; |
1035 | stubreloc = NULL; | |
1036 | ||
1037 | rel_end = relocs + sec->reloc_count; | |
1038 | for (rel = relocs; rel < rel_end; rel++) | |
1039 | { | |
1040 | enum { | |
1041 | NEED_GOT = 1, | |
1042 | NEED_PLT = 2, | |
1043 | NEED_DYNREL = 4, | |
98ceb8ce | 1044 | PLT_PLABEL = 8 |
30667bf3 | 1045 | }; |
edd21aca | 1046 | |
30667bf3 AM |
1047 | unsigned int r_symndx, r_type; |
1048 | struct elf32_hppa_link_hash_entry *h; | |
1049 | int need_entry; | |
252b5132 | 1050 | |
30667bf3 | 1051 | r_symndx = ELF32_R_SYM (rel->r_info); |
252b5132 | 1052 | |
30667bf3 AM |
1053 | if (r_symndx < symtab_hdr->sh_info) |
1054 | h = NULL; | |
1055 | else | |
1056 | h = ((struct elf32_hppa_link_hash_entry *) | |
1057 | sym_hashes[r_symndx - symtab_hdr->sh_info]); | |
252b5132 | 1058 | |
30667bf3 | 1059 | r_type = ELF32_R_TYPE (rel->r_info); |
252b5132 | 1060 | |
30667bf3 AM |
1061 | switch (r_type) |
1062 | { | |
1063 | case R_PARISC_DLTIND14F: | |
1064 | case R_PARISC_DLTIND14R: | |
1065 | case R_PARISC_DLTIND21L: | |
1066 | /* This symbol requires a global offset table entry. */ | |
1067 | need_entry = NEED_GOT; | |
30667bf3 AM |
1068 | break; |
1069 | ||
1070 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1071 | case R_PARISC_PLABEL21L: | |
1072 | case R_PARISC_PLABEL32: | |
74d1c347 | 1073 | /* If the addend is non-zero, we break badly. */ |
49e9d0d3 AM |
1074 | if (rel->r_addend != 0) |
1075 | abort (); | |
74d1c347 AM |
1076 | |
1077 | /* If we are creating a shared library, then we need to | |
1078 | create a PLT entry for all PLABELs, because PLABELs with | |
1079 | local symbols may be passed via a pointer to another | |
1080 | object. Additionally, output a dynamic relocation | |
4dc86686 AM |
1081 | pointing to the PLT entry. |
1082 | For executables, the original 32-bit ABI allowed two | |
1083 | different styles of PLABELs (function pointers): For | |
1084 | global functions, the PLABEL word points into the .plt | |
1085 | two bytes past a (function address, gp) pair, and for | |
1086 | local functions the PLABEL points directly at the | |
1087 | function. The magic +2 for the first type allows us to | |
1088 | differentiate between the two. As you can imagine, this | |
1089 | is a real pain when it comes to generating code to call | |
1090 | functions indirectly or to compare function pointers. | |
1091 | We avoid the mess by always pointing a PLABEL into the | |
1092 | .plt, even for local functions. */ | |
74d1c347 | 1093 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1094 | break; |
1095 | ||
1096 | case R_PARISC_PCREL12F: | |
83c81bfe | 1097 | htab->has_12bit_branch = 1; |
067fa4a6 AM |
1098 | goto branch_common; |
1099 | ||
30667bf3 AM |
1100 | case R_PARISC_PCREL17C: |
1101 | case R_PARISC_PCREL17F: | |
83c81bfe | 1102 | htab->has_17bit_branch = 1; |
067fa4a6 AM |
1103 | goto branch_common; |
1104 | ||
30667bf3 | 1105 | case R_PARISC_PCREL22F: |
067fa4a6 AM |
1106 | htab->has_22bit_branch = 1; |
1107 | branch_common: | |
47d89dba AM |
1108 | /* Function calls might need to go through the .plt, and |
1109 | might require long branch stubs. */ | |
30667bf3 AM |
1110 | if (h == NULL) |
1111 | { | |
1112 | /* We know local syms won't need a .plt entry, and if | |
1113 | they need a long branch stub we can't guarantee that | |
1114 | we can reach the stub. So just flag an error later | |
1115 | if we're doing a shared link and find we need a long | |
1116 | branch stub. */ | |
1117 | continue; | |
1118 | } | |
1119 | else | |
1120 | { | |
1121 | /* Global symbols will need a .plt entry if they remain | |
1122 | global, and in most cases won't need a long branch | |
1123 | stub. Unfortunately, we have to cater for the case | |
1124 | where a symbol is forced local by versioning, or due | |
1125 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1126 | need_entry = NEED_PLT; |
4dc86686 | 1127 | if (h->elf.type == STT_PARISC_MILLI) |
98ceb8ce | 1128 | need_entry = 0; |
30667bf3 AM |
1129 | } |
1130 | break; | |
1131 | ||
1132 | case R_PARISC_SEGBASE: /* Used to set segment base. */ | |
c46b7515 | 1133 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1134 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1135 | case R_PARISC_PCREL14R: | |
1136 | case R_PARISC_PCREL17R: /* External branches. */ | |
1137 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
1138 | /* We don't need to propagate the relocation if linking a | |
1139 | shared object since these are section relative. */ | |
1140 | continue; | |
1141 | ||
1142 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1143 | case R_PARISC_DPREL14R: | |
1144 | case R_PARISC_DPREL21L: | |
1145 | if (info->shared) | |
1146 | { | |
1147 | (*_bfd_error_handler) | |
1148 | (_("%s: relocation %s can not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1149 | bfd_archive_filename (abfd), |
30667bf3 AM |
1150 | elf_hppa_howto_table[r_type].name); |
1151 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1152 | return FALSE; |
30667bf3 AM |
1153 | } |
1154 | /* Fall through. */ | |
1155 | ||
1156 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1157 | case R_PARISC_DIR17R: | |
47d89dba AM |
1158 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1159 | case R_PARISC_DIR14R: | |
30667bf3 | 1160 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
067fa4a6 | 1161 | #if 0 |
30667bf3 AM |
1162 | /* Help debug shared library creation. Any of the above |
1163 | relocs can be used in shared libs, but they may cause | |
1164 | pages to become unshared. */ | |
1165 | if (info->shared) | |
1166 | { | |
1167 | (*_bfd_error_handler) | |
1168 | (_("%s: relocation %s should not be used when making a shared object; recompile with -fPIC"), | |
8f615d07 | 1169 | bfd_archive_filename (abfd), |
30667bf3 AM |
1170 | elf_hppa_howto_table[r_type].name); |
1171 | } | |
1172 | /* Fall through. */ | |
1173 | #endif | |
1174 | ||
c46b7515 | 1175 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1176 | /* We may want to output a dynamic relocation later. */ |
1177 | need_entry = NEED_DYNREL; | |
1178 | break; | |
1179 | ||
1180 | /* This relocation describes the C++ object vtable hierarchy. | |
1181 | Reconstruct it for later use during GC. */ | |
1182 | case R_PARISC_GNU_VTINHERIT: | |
1183 | if (!_bfd_elf32_gc_record_vtinherit (abfd, sec, | |
1184 | &h->elf, rel->r_offset)) | |
b34976b6 | 1185 | return FALSE; |
30667bf3 AM |
1186 | continue; |
1187 | ||
1188 | /* This relocation describes which C++ vtable entries are actually | |
1189 | used. Record for later use during GC. */ | |
1190 | case R_PARISC_GNU_VTENTRY: | |
1191 | if (!_bfd_elf32_gc_record_vtentry (abfd, sec, | |
36605136 | 1192 | &h->elf, rel->r_addend)) |
b34976b6 | 1193 | return FALSE; |
30667bf3 AM |
1194 | continue; |
1195 | ||
1196 | default: | |
1197 | continue; | |
1198 | } | |
1199 | ||
1200 | /* Now carry out our orders. */ | |
1201 | if (need_entry & NEED_GOT) | |
1202 | { | |
1203 | /* Allocate space for a GOT entry, as well as a dynamic | |
25f72752 | 1204 | relocation for this entry. */ |
83c81bfe | 1205 | if (htab->sgot == NULL) |
30667bf3 | 1206 | { |
3ac8354b AM |
1207 | if (htab->elf.dynobj == NULL) |
1208 | htab->elf.dynobj = abfd; | |
1209 | if (!elf32_hppa_create_dynamic_sections (htab->elf.dynobj, info)) | |
b34976b6 | 1210 | return FALSE; |
30667bf3 AM |
1211 | } |
1212 | ||
1213 | if (h != NULL) | |
1214 | { | |
51b64d56 | 1215 | h->elf.got.refcount += 1; |
30667bf3 AM |
1216 | } |
1217 | else | |
1218 | { | |
3ac8354b AM |
1219 | bfd_signed_vma *local_got_refcounts; |
1220 | ||
30667bf3 | 1221 | /* This is a global offset table entry for a local symbol. */ |
3ac8354b | 1222 | local_got_refcounts = elf_local_got_refcounts (abfd); |
30667bf3 AM |
1223 | if (local_got_refcounts == NULL) |
1224 | { | |
dc810e39 | 1225 | bfd_size_type size; |
30667bf3 | 1226 | |
74d1c347 AM |
1227 | /* Allocate space for local got offsets and local |
1228 | plt offsets. Done this way to save polluting | |
1229 | elf_obj_tdata with another target specific | |
1230 | pointer. */ | |
dc810e39 AM |
1231 | size = symtab_hdr->sh_info; |
1232 | size *= 2 * sizeof (bfd_signed_vma); | |
c39a58e6 | 1233 | local_got_refcounts = bfd_zalloc (abfd, size); |
30667bf3 | 1234 | if (local_got_refcounts == NULL) |
b34976b6 | 1235 | return FALSE; |
30667bf3 | 1236 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
30667bf3 | 1237 | } |
ebe50bae | 1238 | local_got_refcounts[r_symndx] += 1; |
30667bf3 AM |
1239 | } |
1240 | } | |
1241 | ||
1242 | if (need_entry & NEED_PLT) | |
1243 | { | |
1244 | /* If we are creating a shared library, and this is a reloc | |
1245 | against a weak symbol or a global symbol in a dynamic | |
1246 | object, then we will be creating an import stub and a | |
1247 | .plt entry for the symbol. Similarly, on a normal link | |
1248 | to symbols defined in a dynamic object we'll need the | |
1249 | import stub and a .plt entry. We don't know yet whether | |
1250 | the symbol is defined or not, so make an entry anyway and | |
1251 | clean up later in adjust_dynamic_symbol. */ | |
1252 | if ((sec->flags & SEC_ALLOC) != 0) | |
1253 | { | |
74d1c347 | 1254 | if (h != NULL) |
30667bf3 | 1255 | { |
51b64d56 AM |
1256 | h->elf.elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT; |
1257 | h->elf.plt.refcount += 1; | |
74d1c347 | 1258 | |
36605136 AM |
1259 | /* If this .plt entry is for a plabel, mark it so |
1260 | that adjust_dynamic_symbol will keep the entry | |
1261 | even if it appears to be local. */ | |
74d1c347 AM |
1262 | if (need_entry & PLT_PLABEL) |
1263 | h->plabel = 1; | |
1264 | } | |
1265 | else if (need_entry & PLT_PLABEL) | |
1266 | { | |
3ac8354b | 1267 | bfd_signed_vma *local_got_refcounts; |
68fb2e56 | 1268 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 | 1269 | |
3ac8354b | 1270 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1271 | if (local_got_refcounts == NULL) |
1272 | { | |
dc810e39 | 1273 | bfd_size_type size; |
74d1c347 AM |
1274 | |
1275 | /* Allocate space for local got offsets and local | |
1276 | plt offsets. */ | |
dc810e39 AM |
1277 | size = symtab_hdr->sh_info; |
1278 | size *= 2 * sizeof (bfd_signed_vma); | |
c39a58e6 | 1279 | local_got_refcounts = bfd_zalloc (abfd, size); |
74d1c347 | 1280 | if (local_got_refcounts == NULL) |
b34976b6 | 1281 | return FALSE; |
74d1c347 | 1282 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
74d1c347 | 1283 | } |
68fb2e56 AM |
1284 | local_plt_refcounts = (local_got_refcounts |
1285 | + symtab_hdr->sh_info); | |
ebe50bae | 1286 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1287 | } |
30667bf3 AM |
1288 | } |
1289 | } | |
1290 | ||
98ceb8ce | 1291 | if (need_entry & NEED_DYNREL) |
30667bf3 AM |
1292 | { |
1293 | /* Flag this symbol as having a non-got, non-plt reference | |
1294 | so that we generate copy relocs if it turns out to be | |
1295 | dynamic. */ | |
ebe50bae | 1296 | if (h != NULL && !info->shared) |
30667bf3 AM |
1297 | h->elf.elf_link_hash_flags |= ELF_LINK_NON_GOT_REF; |
1298 | ||
1299 | /* If we are creating a shared library then we need to copy | |
1300 | the reloc into the shared library. However, if we are | |
1301 | linking with -Bsymbolic, we need only copy absolute | |
1302 | relocs or relocs against symbols that are not defined in | |
1303 | an object we are including in the link. PC- or DP- or | |
1304 | DLT-relative relocs against any local sym or global sym | |
1305 | with DEF_REGULAR set, can be discarded. At this point we | |
1306 | have not seen all the input files, so it is possible that | |
1307 | DEF_REGULAR is not set now but will be set later (it is | |
1308 | never cleared). We account for that possibility below by | |
98ceb8ce | 1309 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1310 | hash table entry. |
1311 | ||
1312 | A similar situation to the -Bsymbolic case occurs when | |
1313 | creating shared libraries and symbol visibility changes | |
1314 | render the symbol local. | |
1315 | ||
1316 | As it turns out, all the relocs we will be creating here | |
1317 | are absolute, so we cannot remove them on -Bsymbolic | |
1318 | links or visibility changes anyway. A STUB_REL reloc | |
1319 | is absolute too, as in that case it is the reloc in the | |
1320 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1321 | reloc in the branch. |
1322 | ||
1323 | If on the other hand, we are creating an executable, we | |
1324 | may need to keep relocations for symbols satisfied by a | |
1325 | dynamic library if we manage to avoid copy relocs for the | |
1326 | symbol. */ | |
446f2863 AM |
1327 | if ((info->shared |
1328 | && (sec->flags & SEC_ALLOC) != 0 | |
1329 | && (IS_ABSOLUTE_RELOC (r_type) | |
1330 | || (h != NULL | |
1331 | && (!info->symbolic | |
1332 | || h->elf.root.type == bfd_link_hash_defweak | |
1333 | || (h->elf.elf_link_hash_flags | |
1334 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
1335 | || (!info->shared | |
1336 | && (sec->flags & SEC_ALLOC) != 0 | |
1337 | && h != NULL | |
446f2863 AM |
1338 | && (h->elf.root.type == bfd_link_hash_defweak |
1339 | || (h->elf.elf_link_hash_flags | |
1340 | & ELF_LINK_HASH_DEF_REGULAR) == 0))) | |
30667bf3 | 1341 | { |
ec338859 AM |
1342 | struct elf32_hppa_dyn_reloc_entry *p; |
1343 | struct elf32_hppa_dyn_reloc_entry **head; | |
1344 | ||
30667bf3 AM |
1345 | /* Create a reloc section in dynobj and make room for |
1346 | this reloc. */ | |
98ceb8ce | 1347 | if (sreloc == NULL) |
30667bf3 AM |
1348 | { |
1349 | char *name; | |
3ac8354b | 1350 | bfd *dynobj; |
30667bf3 | 1351 | |
98ceb8ce AM |
1352 | name = (bfd_elf_string_from_elf_section |
1353 | (abfd, | |
1354 | elf_elfheader (abfd)->e_shstrndx, | |
1355 | elf_section_data (sec)->rel_hdr.sh_name)); | |
30667bf3 AM |
1356 | if (name == NULL) |
1357 | { | |
1358 | (*_bfd_error_handler) | |
1359 | (_("Could not find relocation section for %s"), | |
1360 | sec->name); | |
1361 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1362 | return FALSE; |
30667bf3 AM |
1363 | } |
1364 | ||
3ac8354b AM |
1365 | if (htab->elf.dynobj == NULL) |
1366 | htab->elf.dynobj = abfd; | |
1367 | ||
1368 | dynobj = htab->elf.dynobj; | |
98ceb8ce AM |
1369 | sreloc = bfd_get_section_by_name (dynobj, name); |
1370 | if (sreloc == NULL) | |
30667bf3 AM |
1371 | { |
1372 | flagword flags; | |
1373 | ||
98ceb8ce | 1374 | sreloc = bfd_make_section (dynobj, name); |
30667bf3 AM |
1375 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1376 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1377 | if ((sec->flags & SEC_ALLOC) != 0) | |
1378 | flags |= SEC_ALLOC | SEC_LOAD; | |
98ceb8ce AM |
1379 | if (sreloc == NULL |
1380 | || !bfd_set_section_flags (dynobj, sreloc, flags) | |
1381 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) | |
b34976b6 | 1382 | return FALSE; |
30667bf3 | 1383 | } |
30667bf3 | 1384 | |
98ceb8ce | 1385 | elf_section_data (sec)->sreloc = sreloc; |
30667bf3 AM |
1386 | } |
1387 | ||
98ceb8ce AM |
1388 | /* If this is a global symbol, we count the number of |
1389 | relocations we need for this symbol. */ | |
1390 | if (h != NULL) | |
30667bf3 | 1391 | { |
ec338859 AM |
1392 | head = &h->dyn_relocs; |
1393 | } | |
1394 | else | |
1395 | { | |
1396 | /* Track dynamic relocs needed for local syms too. | |
1397 | We really need local syms available to do this | |
1398 | easily. Oh well. */ | |
1399 | ||
1400 | asection *s; | |
1401 | s = bfd_section_from_r_symndx (abfd, &htab->sym_sec, | |
1402 | sec, r_symndx); | |
1403 | if (s == NULL) | |
b34976b6 | 1404 | return FALSE; |
30667bf3 | 1405 | |
ec338859 AM |
1406 | head = ((struct elf32_hppa_dyn_reloc_entry **) |
1407 | &elf_section_data (s)->local_dynrel); | |
1408 | } | |
1409 | ||
1410 | p = *head; | |
1411 | if (p == NULL || p->sec != sec) | |
1412 | { | |
c39a58e6 | 1413 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); |
ec338859 | 1414 | if (p == NULL) |
b34976b6 | 1415 | return FALSE; |
ec338859 AM |
1416 | p->next = *head; |
1417 | *head = p; | |
1418 | p->sec = sec; | |
1419 | p->count = 0; | |
98ceb8ce | 1420 | #if RELATIVE_DYNRELOCS |
ec338859 | 1421 | p->relative_count = 0; |
98ceb8ce | 1422 | #endif |
ec338859 | 1423 | } |
98ceb8ce | 1424 | |
ec338859 | 1425 | p->count += 1; |
98ceb8ce | 1426 | #if RELATIVE_DYNRELOCS |
ec338859 AM |
1427 | if (!IS_ABSOLUTE_RELOC (rtype)) |
1428 | p->relative_count += 1; | |
98ceb8ce | 1429 | #endif |
30667bf3 AM |
1430 | } |
1431 | } | |
1432 | } | |
edd21aca | 1433 | |
b34976b6 | 1434 | return TRUE; |
edd21aca AM |
1435 | } |
1436 | ||
30667bf3 AM |
1437 | /* Return the section that should be marked against garbage collection |
1438 | for a given relocation. */ | |
1439 | ||
1440 | static asection * | |
c39a58e6 AM |
1441 | elf32_hppa_gc_mark_hook (asection *sec, |
1442 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1443 | Elf_Internal_Rela *rel, | |
1444 | struct elf_link_hash_entry *h, | |
1445 | Elf_Internal_Sym *sym) | |
30667bf3 AM |
1446 | { |
1447 | if (h != NULL) | |
1448 | { | |
1449 | switch ((unsigned int) ELF32_R_TYPE (rel->r_info)) | |
1450 | { | |
1451 | case R_PARISC_GNU_VTINHERIT: | |
1452 | case R_PARISC_GNU_VTENTRY: | |
1453 | break; | |
1454 | ||
1455 | default: | |
1456 | switch (h->root.type) | |
1457 | { | |
1458 | case bfd_link_hash_defined: | |
1459 | case bfd_link_hash_defweak: | |
1460 | return h->root.u.def.section; | |
1461 | ||
1462 | case bfd_link_hash_common: | |
1463 | return h->root.u.c.p->section; | |
1464 | ||
1465 | default: | |
1466 | break; | |
1467 | } | |
1468 | } | |
1469 | } | |
1470 | else | |
1e2f5b6e | 1471 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
30667bf3 AM |
1472 | |
1473 | return NULL; | |
1474 | } | |
1475 | ||
30667bf3 AM |
1476 | /* Update the got and plt entry reference counts for the section being |
1477 | removed. */ | |
edd21aca | 1478 | |
b34976b6 | 1479 | static bfd_boolean |
c39a58e6 AM |
1480 | elf32_hppa_gc_sweep_hook (bfd *abfd, |
1481 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1482 | asection *sec, | |
1483 | const Elf_Internal_Rela *relocs) | |
edd21aca | 1484 | { |
30667bf3 AM |
1485 | Elf_Internal_Shdr *symtab_hdr; |
1486 | struct elf_link_hash_entry **sym_hashes; | |
1487 | bfd_signed_vma *local_got_refcounts; | |
74d1c347 | 1488 | bfd_signed_vma *local_plt_refcounts; |
30667bf3 | 1489 | const Elf_Internal_Rela *rel, *relend; |
30667bf3 | 1490 | |
ec338859 | 1491 | elf_section_data (sec)->local_dynrel = NULL; |
98ceb8ce | 1492 | |
30667bf3 AM |
1493 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
1494 | sym_hashes = elf_sym_hashes (abfd); | |
1495 | local_got_refcounts = elf_local_got_refcounts (abfd); | |
74d1c347 AM |
1496 | local_plt_refcounts = local_got_refcounts; |
1497 | if (local_plt_refcounts != NULL) | |
1498 | local_plt_refcounts += symtab_hdr->sh_info; | |
30667bf3 | 1499 | |
30667bf3 AM |
1500 | relend = relocs + sec->reloc_count; |
1501 | for (rel = relocs; rel < relend; rel++) | |
26e41594 AM |
1502 | { |
1503 | unsigned long r_symndx; | |
1504 | unsigned int r_type; | |
1505 | struct elf_link_hash_entry *h = NULL; | |
1506 | ||
1507 | r_symndx = ELF32_R_SYM (rel->r_info); | |
1508 | if (r_symndx >= symtab_hdr->sh_info) | |
1509 | { | |
1510 | struct elf32_hppa_link_hash_entry *eh; | |
1511 | struct elf32_hppa_dyn_reloc_entry **pp; | |
1512 | struct elf32_hppa_dyn_reloc_entry *p; | |
1513 | ||
1514 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
1515 | eh = (struct elf32_hppa_link_hash_entry *) h; | |
1516 | ||
1517 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
1518 | if (p->sec == sec) | |
1519 | { | |
1520 | /* Everything must go for SEC. */ | |
1521 | *pp = p->next; | |
1522 | break; | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | r_type = ELF32_R_TYPE (rel->r_info); | |
1527 | switch (r_type) | |
1528 | { | |
1529 | case R_PARISC_DLTIND14F: | |
1530 | case R_PARISC_DLTIND14R: | |
1531 | case R_PARISC_DLTIND21L: | |
1532 | if (h != NULL) | |
1533 | { | |
1534 | if (h->got.refcount > 0) | |
1535 | h->got.refcount -= 1; | |
1536 | } | |
1537 | else if (local_got_refcounts != NULL) | |
1538 | { | |
1539 | if (local_got_refcounts[r_symndx] > 0) | |
1540 | local_got_refcounts[r_symndx] -= 1; | |
1541 | } | |
1542 | break; | |
98ceb8ce | 1543 | |
26e41594 AM |
1544 | case R_PARISC_PCREL12F: |
1545 | case R_PARISC_PCREL17C: | |
1546 | case R_PARISC_PCREL17F: | |
1547 | case R_PARISC_PCREL22F: | |
1548 | if (h != NULL) | |
1549 | { | |
1550 | if (h->plt.refcount > 0) | |
1551 | h->plt.refcount -= 1; | |
1552 | } | |
1553 | break; | |
1554 | ||
1555 | case R_PARISC_PLABEL14R: | |
1556 | case R_PARISC_PLABEL21L: | |
1557 | case R_PARISC_PLABEL32: | |
1558 | if (h != NULL) | |
1559 | { | |
1560 | if (h->plt.refcount > 0) | |
1561 | h->plt.refcount -= 1; | |
1562 | } | |
1563 | else if (local_plt_refcounts != NULL) | |
1564 | { | |
1565 | if (local_plt_refcounts[r_symndx] > 0) | |
1566 | local_plt_refcounts[r_symndx] -= 1; | |
1567 | } | |
1568 | break; | |
1569 | ||
1570 | default: | |
1571 | break; | |
1572 | } | |
1573 | } | |
252b5132 | 1574 | |
b34976b6 | 1575 | return TRUE; |
252b5132 RH |
1576 | } |
1577 | ||
74d1c347 AM |
1578 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1579 | plabels. */ | |
1580 | ||
1581 | static void | |
c39a58e6 AM |
1582 | elf32_hppa_hide_symbol (struct bfd_link_info *info, |
1583 | struct elf_link_hash_entry *h, | |
1584 | bfd_boolean force_local) | |
74d1c347 | 1585 | { |
e5094212 AM |
1586 | if (force_local) |
1587 | { | |
1588 | h->elf_link_hash_flags |= ELF_LINK_FORCED_LOCAL; | |
1589 | if (h->dynindx != -1) | |
1590 | { | |
1591 | h->dynindx = -1; | |
1592 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
1593 | h->dynstr_index); | |
1594 | } | |
1595 | } | |
1596 | ||
74d1c347 AM |
1597 | if (! ((struct elf32_hppa_link_hash_entry *) h)->plabel) |
1598 | { | |
1599 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1600 | h->plt.offset = (bfd_vma) -1; | |
1601 | } | |
1602 | } | |
1603 | ||
4dc86686 AM |
1604 | /* This is the condition under which elf32_hppa_finish_dynamic_symbol |
1605 | will be called from elflink.h. If elflink.h doesn't call our | |
1606 | finish_dynamic_symbol routine, we'll need to do something about | |
1607 | initializing any .plt and .got entries in elf32_hppa_relocate_section. */ | |
1608 | #define WILL_CALL_FINISH_DYNAMIC_SYMBOL(DYN, INFO, H) \ | |
1609 | ((DYN) \ | |
1610 | && ((INFO)->shared \ | |
1611 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) \ | |
1612 | && ((H)->dynindx != -1 \ | |
1613 | || ((H)->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0)) | |
1614 | ||
30667bf3 AM |
1615 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1616 | regular object. The current definition is in some section of the | |
1617 | dynamic object, but we're not including those sections. We have to | |
1618 | change the definition to something the rest of the link can | |
1619 | understand. */ | |
252b5132 | 1620 | |
b34976b6 | 1621 | static bfd_boolean |
c39a58e6 AM |
1622 | elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info, |
1623 | struct elf_link_hash_entry *h) | |
252b5132 | 1624 | { |
83c81bfe | 1625 | struct elf32_hppa_link_hash_table *htab; |
ebe50bae AM |
1626 | struct elf32_hppa_link_hash_entry *eh; |
1627 | struct elf32_hppa_dyn_reloc_entry *p; | |
30667bf3 | 1628 | asection *s; |
3ac8354b | 1629 | unsigned int power_of_two; |
30667bf3 AM |
1630 | |
1631 | /* If this is a function, put it in the procedure linkage table. We | |
067fa4a6 | 1632 | will fill in the contents of the procedure linkage table later. */ |
30667bf3 AM |
1633 | if (h->type == STT_FUNC |
1634 | || (h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_PLT) != 0) | |
1635 | { | |
1636 | if (h->plt.refcount <= 0 | |
1637 | || ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1638 | && h->root.type != bfd_link_hash_defweak | |
74d1c347 | 1639 | && ! ((struct elf32_hppa_link_hash_entry *) h)->plabel |
30667bf3 AM |
1640 | && (!info->shared || info->symbolic))) |
1641 | { | |
1642 | /* The .plt entry is not needed when: | |
1643 | a) Garbage collection has removed all references to the | |
1644 | symbol, or | |
1645 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1646 | object, and it's not a weak definition, nor is the symbol |
1647 | used by a plabel relocation. Either this object is the | |
1648 | application or we are doing a shared symbolic link. */ | |
1649 | ||
a252afa4 DA |
1650 | h->plt.offset = (bfd_vma) -1; |
1651 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
30667bf3 | 1652 | } |
4dc86686 | 1653 | |
b34976b6 | 1654 | return TRUE; |
30667bf3 | 1655 | } |
bbd7ec4a AM |
1656 | else |
1657 | h->plt.offset = (bfd_vma) -1; | |
edd21aca | 1658 | |
30667bf3 AM |
1659 | /* If this is a weak symbol, and there is a real definition, the |
1660 | processor independent code will have arranged for us to see the | |
1661 | real definition first, and we can just use the same value. */ | |
1662 | if (h->weakdef != NULL) | |
edd21aca | 1663 | { |
49e9d0d3 AM |
1664 | if (h->weakdef->root.type != bfd_link_hash_defined |
1665 | && h->weakdef->root.type != bfd_link_hash_defweak) | |
1666 | abort (); | |
30667bf3 AM |
1667 | h->root.u.def.section = h->weakdef->root.u.def.section; |
1668 | h->root.u.def.value = h->weakdef->root.u.def.value; | |
b34976b6 | 1669 | return TRUE; |
30667bf3 | 1670 | } |
edd21aca | 1671 | |
30667bf3 AM |
1672 | /* This is a reference to a symbol defined by a dynamic object which |
1673 | is not a function. */ | |
1674 | ||
1675 | /* If we are creating a shared library, we must presume that the | |
1676 | only references to the symbol are via the global offset table. | |
1677 | For such cases we need not do anything here; the relocations will | |
1678 | be handled correctly by relocate_section. */ | |
1679 | if (info->shared) | |
b34976b6 | 1680 | return TRUE; |
30667bf3 AM |
1681 | |
1682 | /* If there are no references to this symbol that do not use the | |
1683 | GOT, we don't need to generate a copy reloc. */ | |
1684 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0) | |
b34976b6 | 1685 | return TRUE; |
30667bf3 | 1686 | |
ebe50bae AM |
1687 | eh = (struct elf32_hppa_link_hash_entry *) h; |
1688 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1689 | { | |
1690 | s = p->sec->output_section; | |
1691 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1692 | break; | |
1693 | } | |
1694 | ||
1695 | /* If we didn't find any dynamic relocs in read-only sections, then | |
46fe4e66 | 1696 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
ebe50bae AM |
1697 | if (p == NULL) |
1698 | { | |
1699 | h->elf_link_hash_flags &= ~ELF_LINK_NON_GOT_REF; | |
b34976b6 | 1700 | return TRUE; |
ebe50bae AM |
1701 | } |
1702 | ||
30667bf3 AM |
1703 | /* We must allocate the symbol in our .dynbss section, which will |
1704 | become part of the .bss section of the executable. There will be | |
1705 | an entry for this symbol in the .dynsym section. The dynamic | |
1706 | object will contain position independent code, so all references | |
1707 | from the dynamic object to this symbol will go through the global | |
1708 | offset table. The dynamic linker will use the .dynsym entry to | |
1709 | determine the address it must put in the global offset table, so | |
1710 | both the dynamic object and the regular object will refer to the | |
1711 | same memory location for the variable. */ | |
1712 | ||
3ac8354b | 1713 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1714 | |
1715 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1716 | copy the initial value out of the dynamic object and into the | |
3ac8354b | 1717 | runtime process image. */ |
30667bf3 AM |
1718 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0) |
1719 | { | |
3ac8354b | 1720 | htab->srelbss->_raw_size += sizeof (Elf32_External_Rela); |
30667bf3 | 1721 | h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_COPY; |
edd21aca | 1722 | } |
252b5132 | 1723 | |
3ac8354b AM |
1724 | /* We need to figure out the alignment required for this symbol. I |
1725 | have no idea how other ELF linkers handle this. */ | |
30667bf3 | 1726 | |
3ac8354b AM |
1727 | power_of_two = bfd_log2 (h->size); |
1728 | if (power_of_two > 3) | |
1729 | power_of_two = 3; | |
1730 | ||
1731 | /* Apply the required alignment. */ | |
1732 | s = htab->sdynbss; | |
1733 | s->_raw_size = BFD_ALIGN (s->_raw_size, | |
1734 | (bfd_size_type) (1 << power_of_two)); | |
1735 | if (power_of_two > bfd_get_section_alignment (htab->elf.dynobj, s)) | |
1736 | { | |
1737 | if (! bfd_set_section_alignment (htab->elf.dynobj, s, power_of_two)) | |
b34976b6 | 1738 | return FALSE; |
3ac8354b | 1739 | } |
30667bf3 | 1740 | |
30667bf3 AM |
1741 | /* Define the symbol as being at this point in the section. */ |
1742 | h->root.u.def.section = s; | |
1743 | h->root.u.def.value = s->_raw_size; | |
edd21aca | 1744 | |
30667bf3 AM |
1745 | /* Increment the section size to make room for the symbol. */ |
1746 | s->_raw_size += h->size; | |
252b5132 | 1747 | |
b34976b6 | 1748 | return TRUE; |
252b5132 RH |
1749 | } |
1750 | ||
e5ee5df1 | 1751 | /* Allocate space in the .plt for entries that won't have relocations. |
a252afa4 | 1752 | ie. plabel entries. */ |
a8d02d66 | 1753 | |
b34976b6 | 1754 | static bfd_boolean |
c39a58e6 | 1755 | allocate_plt_static (struct elf_link_hash_entry *h, void *inf) |
a8d02d66 AM |
1756 | { |
1757 | struct bfd_link_info *info; | |
1758 | struct elf32_hppa_link_hash_table *htab; | |
1759 | asection *s; | |
1760 | ||
e92d460e | 1761 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 1762 | return TRUE; |
a8d02d66 | 1763 | |
e92d460e AM |
1764 | if (h->root.type == bfd_link_hash_warning) |
1765 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1766 | ||
c39a58e6 | 1767 | info = inf; |
a8d02d66 | 1768 | htab = hppa_link_hash_table (info); |
a252afa4 | 1769 | if (htab->elf.dynamic_sections_created |
e5ee5df1 AM |
1770 | && h->plt.refcount > 0) |
1771 | { | |
1772 | /* Make sure this symbol is output as a dynamic symbol. | |
1773 | Undefined weak syms won't yet be marked as dynamic. */ | |
1774 | if (h->dynindx == -1 | |
1775 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
1776 | && h->type != STT_PARISC_MILLI) | |
a8d02d66 | 1777 | { |
e5ee5df1 | 1778 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) |
b34976b6 | 1779 | return FALSE; |
e5ee5df1 AM |
1780 | } |
1781 | ||
1782 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, h)) | |
1783 | { | |
067fa4a6 AM |
1784 | /* Allocate these later. From this point on, h->plabel |
1785 | means that the plt entry is only used by a plabel. | |
1786 | We'll be using a normal plt entry for this symbol, so | |
1787 | clear the plabel indicator. */ | |
1788 | ((struct elf32_hppa_link_hash_entry *) h)->plabel = 0; | |
e5ee5df1 AM |
1789 | } |
1790 | else if (((struct elf32_hppa_link_hash_entry *) h)->plabel) | |
1791 | { | |
1792 | /* Make an entry in the .plt section for plabel references | |
1793 | that won't have a .plt entry for other reasons. */ | |
1794 | s = htab->splt; | |
1795 | h->plt.offset = s->_raw_size; | |
1796 | s->_raw_size += PLT_ENTRY_SIZE; | |
a8d02d66 AM |
1797 | } |
1798 | else | |
e5ee5df1 AM |
1799 | { |
1800 | /* No .plt entry needed. */ | |
1801 | h->plt.offset = (bfd_vma) -1; | |
1802 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
1803 | } | |
1804 | } | |
1805 | else | |
1806 | { | |
1807 | h->plt.offset = (bfd_vma) -1; | |
1808 | h->elf_link_hash_flags &= ~ELF_LINK_HASH_NEEDS_PLT; | |
a8d02d66 AM |
1809 | } |
1810 | ||
b34976b6 | 1811 | return TRUE; |
a8d02d66 AM |
1812 | } |
1813 | ||
4dc86686 AM |
1814 | /* Allocate space in .plt, .got and associated reloc sections for |
1815 | global syms. */ | |
1816 | ||
b34976b6 | 1817 | static bfd_boolean |
c39a58e6 | 1818 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
4dc86686 AM |
1819 | { |
1820 | struct bfd_link_info *info; | |
83c81bfe | 1821 | struct elf32_hppa_link_hash_table *htab; |
4dc86686 | 1822 | asection *s; |
446f2863 | 1823 | struct elf32_hppa_link_hash_entry *eh; |
98ceb8ce | 1824 | struct elf32_hppa_dyn_reloc_entry *p; |
4dc86686 | 1825 | |
e92d460e | 1826 | if (h->root.type == bfd_link_hash_indirect) |
b34976b6 | 1827 | return TRUE; |
73a74a62 | 1828 | |
e92d460e AM |
1829 | if (h->root.type == bfd_link_hash_warning) |
1830 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1831 | ||
c39a58e6 | 1832 | info = inf; |
83c81bfe | 1833 | htab = hppa_link_hash_table (info); |
e5ee5df1 AM |
1834 | if (htab->elf.dynamic_sections_created |
1835 | && h->plt.offset != (bfd_vma) -1 | |
067fa4a6 | 1836 | && !((struct elf32_hppa_link_hash_entry *) h)->plabel) |
4dc86686 | 1837 | { |
e5ee5df1 AM |
1838 | /* Make an entry in the .plt section. */ |
1839 | s = htab->splt; | |
1840 | h->plt.offset = s->_raw_size; | |
1841 | s->_raw_size += PLT_ENTRY_SIZE; | |
3ac8354b | 1842 | |
e5ee5df1 AM |
1843 | /* We also need to make an entry in the .rela.plt section. */ |
1844 | htab->srelplt->_raw_size += sizeof (Elf32_External_Rela); | |
1845 | htab->need_plt_stub = 1; | |
4dc86686 | 1846 | } |
edd21aca | 1847 | |
4dc86686 AM |
1848 | if (h->got.refcount > 0) |
1849 | { | |
446f2863 AM |
1850 | /* Make sure this symbol is output as a dynamic symbol. |
1851 | Undefined weak syms won't yet be marked as dynamic. */ | |
1852 | if (h->dynindx == -1 | |
1853 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
1854 | && h->type != STT_PARISC_MILLI) | |
1855 | { | |
1856 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
b34976b6 | 1857 | return FALSE; |
446f2863 AM |
1858 | } |
1859 | ||
83c81bfe | 1860 | s = htab->sgot; |
4dc86686 AM |
1861 | h->got.offset = s->_raw_size; |
1862 | s->_raw_size += GOT_ENTRY_SIZE; | |
ce757d15 AM |
1863 | if (htab->elf.dynamic_sections_created |
1864 | && (info->shared | |
1865 | || (h->dynindx != -1 | |
1866 | && h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0)) | |
1867 | { | |
1868 | htab->srelgot->_raw_size += sizeof (Elf32_External_Rela); | |
1869 | } | |
4dc86686 AM |
1870 | } |
1871 | else | |
1872 | h->got.offset = (bfd_vma) -1; | |
30667bf3 | 1873 | |
446f2863 | 1874 | eh = (struct elf32_hppa_link_hash_entry *) h; |
98ceb8ce | 1875 | if (eh->dyn_relocs == NULL) |
b34976b6 | 1876 | return TRUE; |
30667bf3 | 1877 | |
98ceb8ce AM |
1878 | /* If this is a -Bsymbolic shared link, then we need to discard all |
1879 | space allocated for dynamic pc-relative relocs against symbols | |
1880 | defined in a regular object. For the normal shared case, discard | |
1881 | space for relocs that have become local due to symbol visibility | |
1882 | changes. */ | |
1883 | if (info->shared) | |
446f2863 | 1884 | { |
98ceb8ce AM |
1885 | #if RELATIVE_DYNRELOCS |
1886 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) != 0 | |
1887 | && ((h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) != 0 | |
1888 | || info->symbolic)) | |
446f2863 | 1889 | { |
98ceb8ce | 1890 | struct elf32_hppa_dyn_reloc_entry **pp; |
30667bf3 | 1891 | |
98ceb8ce AM |
1892 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
1893 | { | |
1894 | p->count -= p->relative_count; | |
1895 | p->relative_count = 0; | |
1896 | if (p->count == 0) | |
1897 | *pp = p->next; | |
1898 | else | |
1899 | pp = &p->next; | |
1900 | } | |
1901 | } | |
1902 | #endif | |
446f2863 | 1903 | } |
98ceb8ce | 1904 | else |
30667bf3 | 1905 | { |
98ceb8ce AM |
1906 | /* For the non-shared case, discard space for relocs against |
1907 | symbols which turn out to need copy relocs or are not | |
1908 | dynamic. */ | |
1909 | if ((h->elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
1910 | && (((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
1911 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
ebe50bae | 1912 | || (htab->elf.dynamic_sections_created |
98ceb8ce AM |
1913 | && (h->root.type == bfd_link_hash_undefweak |
1914 | || h->root.type == bfd_link_hash_undefined)))) | |
1915 | { | |
1916 | /* Make sure this symbol is output as a dynamic symbol. | |
1917 | Undefined weak syms won't yet be marked as dynamic. */ | |
1918 | if (h->dynindx == -1 | |
1919 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0 | |
1920 | && h->type != STT_PARISC_MILLI) | |
1921 | { | |
1922 | if (! bfd_elf32_link_record_dynamic_symbol (info, h)) | |
b34976b6 | 1923 | return FALSE; |
98ceb8ce AM |
1924 | } |
1925 | ||
1926 | /* If that succeeded, we know we'll be keeping all the | |
1927 | relocs. */ | |
1928 | if (h->dynindx != -1) | |
1929 | goto keep; | |
1930 | } | |
446f2863 | 1931 | |
98ceb8ce | 1932 | eh->dyn_relocs = NULL; |
b34976b6 | 1933 | return TRUE; |
98ceb8ce | 1934 | |
ec338859 | 1935 | keep: ; |
30667bf3 | 1936 | } |
30667bf3 | 1937 | |
98ceb8ce AM |
1938 | /* Finally, allocate space. */ |
1939 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
30667bf3 | 1940 | { |
98ceb8ce AM |
1941 | asection *sreloc = elf_section_data (p->sec)->sreloc; |
1942 | sreloc->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 1943 | } |
30667bf3 | 1944 | |
b34976b6 | 1945 | return TRUE; |
30667bf3 | 1946 | } |
30667bf3 | 1947 | |
d5c73c2f AM |
1948 | /* This function is called via elf_link_hash_traverse to force |
1949 | millicode symbols local so they do not end up as globals in the | |
1950 | dynamic symbol table. We ought to be able to do this in | |
1951 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
1952 | for all dynamic symbols. Arguably, this is a bug in | |
1953 | elf_adjust_dynamic_symbol. */ | |
1954 | ||
b34976b6 | 1955 | static bfd_boolean |
c39a58e6 AM |
1956 | clobber_millicode_symbols (struct elf_link_hash_entry *h, |
1957 | struct bfd_link_info *info) | |
d5c73c2f | 1958 | { |
e92d460e AM |
1959 | if (h->root.type == bfd_link_hash_warning) |
1960 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1961 | ||
142f8c94 AM |
1962 | if (h->type == STT_PARISC_MILLI |
1963 | && (h->elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) == 0) | |
e0522e89 | 1964 | { |
b34976b6 | 1965 | elf32_hppa_hide_symbol (info, h, TRUE); |
e0522e89 | 1966 | } |
b34976b6 | 1967 | return TRUE; |
d5c73c2f AM |
1968 | } |
1969 | ||
98ceb8ce AM |
1970 | /* Find any dynamic relocs that apply to read-only sections. */ |
1971 | ||
b34976b6 | 1972 | static bfd_boolean |
c39a58e6 | 1973 | readonly_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
98ceb8ce AM |
1974 | { |
1975 | struct elf32_hppa_link_hash_entry *eh; | |
1976 | struct elf32_hppa_dyn_reloc_entry *p; | |
1977 | ||
e92d460e AM |
1978 | if (h->root.type == bfd_link_hash_warning) |
1979 | h = (struct elf_link_hash_entry *) h->root.u.i.link; | |
1980 | ||
98ceb8ce AM |
1981 | eh = (struct elf32_hppa_link_hash_entry *) h; |
1982 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
1983 | { | |
1984 | asection *s = p->sec->output_section; | |
1985 | ||
1986 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
1987 | { | |
c39a58e6 | 1988 | struct bfd_link_info *info = inf; |
98ceb8ce AM |
1989 | |
1990 | info->flags |= DF_TEXTREL; | |
1991 | ||
1992 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 1993 | return FALSE; |
98ceb8ce AM |
1994 | } |
1995 | } | |
b34976b6 | 1996 | return TRUE; |
98ceb8ce AM |
1997 | } |
1998 | ||
30667bf3 AM |
1999 | /* Set the sizes of the dynamic sections. */ |
2000 | ||
b34976b6 | 2001 | static bfd_boolean |
c39a58e6 AM |
2002 | elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
2003 | struct bfd_link_info *info) | |
30667bf3 | 2004 | { |
83c81bfe | 2005 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2006 | bfd *dynobj; |
98ceb8ce | 2007 | bfd *ibfd; |
30667bf3 | 2008 | asection *s; |
b34976b6 | 2009 | bfd_boolean relocs; |
30667bf3 | 2010 | |
83c81bfe | 2011 | htab = hppa_link_hash_table (info); |
ebe50bae | 2012 | dynobj = htab->elf.dynobj; |
49e9d0d3 AM |
2013 | if (dynobj == NULL) |
2014 | abort (); | |
30667bf3 | 2015 | |
ebe50bae | 2016 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2017 | { |
2018 | /* Set the contents of the .interp section to the interpreter. */ | |
2019 | if (! info->shared) | |
2020 | { | |
2021 | s = bfd_get_section_by_name (dynobj, ".interp"); | |
49e9d0d3 AM |
2022 | if (s == NULL) |
2023 | abort (); | |
30667bf3 AM |
2024 | s->_raw_size = sizeof ELF_DYNAMIC_INTERPRETER; |
2025 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
2026 | } | |
74d1c347 | 2027 | |
d5c73c2f | 2028 | /* Force millicode symbols local. */ |
ebe50bae | 2029 | elf_link_hash_traverse (&htab->elf, |
d5c73c2f AM |
2030 | clobber_millicode_symbols, |
2031 | info); | |
68fb2e56 | 2032 | } |
d5c73c2f | 2033 | |
98ceb8ce AM |
2034 | /* Set up .got and .plt offsets for local syms, and space for local |
2035 | dynamic relocs. */ | |
2036 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
68fb2e56 AM |
2037 | { |
2038 | bfd_signed_vma *local_got; | |
2039 | bfd_signed_vma *end_local_got; | |
2040 | bfd_signed_vma *local_plt; | |
2041 | bfd_signed_vma *end_local_plt; | |
2042 | bfd_size_type locsymcount; | |
2043 | Elf_Internal_Shdr *symtab_hdr; | |
2044 | asection *srel; | |
74d1c347 | 2045 | |
98ceb8ce | 2046 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2047 | continue; |
4dc86686 | 2048 | |
98ceb8ce AM |
2049 | for (s = ibfd->sections; s != NULL; s = s->next) |
2050 | { | |
ec338859 | 2051 | struct elf32_hppa_dyn_reloc_entry *p; |
98ceb8ce | 2052 | |
ec338859 AM |
2053 | for (p = ((struct elf32_hppa_dyn_reloc_entry *) |
2054 | elf_section_data (s)->local_dynrel); | |
2055 | p != NULL; | |
2056 | p = p->next) | |
98ceb8ce | 2057 | { |
ec338859 AM |
2058 | if (!bfd_is_abs_section (p->sec) |
2059 | && bfd_is_abs_section (p->sec->output_section)) | |
2060 | { | |
2061 | /* Input section has been discarded, either because | |
2062 | it is a copy of a linkonce section or due to | |
2063 | linker script /DISCARD/, so we'll be discarding | |
2064 | the relocs too. */ | |
2065 | } | |
248866a8 | 2066 | else if (p->count != 0) |
ec338859 AM |
2067 | { |
2068 | srel = elf_section_data (p->sec)->sreloc; | |
2069 | srel->_raw_size += p->count * sizeof (Elf32_External_Rela); | |
248866a8 AM |
2070 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
2071 | info->flags |= DF_TEXTREL; | |
ec338859 | 2072 | } |
98ceb8ce AM |
2073 | } |
2074 | } | |
2075 | ||
2076 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2077 | if (!local_got) |
2078 | continue; | |
74d1c347 | 2079 | |
98ceb8ce | 2080 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2081 | locsymcount = symtab_hdr->sh_info; |
2082 | end_local_got = local_got + locsymcount; | |
83c81bfe AM |
2083 | s = htab->sgot; |
2084 | srel = htab->srelgot; | |
68fb2e56 AM |
2085 | for (; local_got < end_local_got; ++local_got) |
2086 | { | |
2087 | if (*local_got > 0) | |
4dc86686 | 2088 | { |
68fb2e56 AM |
2089 | *local_got = s->_raw_size; |
2090 | s->_raw_size += GOT_ENTRY_SIZE; | |
2091 | if (info->shared) | |
2092 | srel->_raw_size += sizeof (Elf32_External_Rela); | |
4dc86686 | 2093 | } |
68fb2e56 AM |
2094 | else |
2095 | *local_got = (bfd_vma) -1; | |
2096 | } | |
74d1c347 | 2097 | |
68fb2e56 AM |
2098 | local_plt = end_local_got; |
2099 | end_local_plt = local_plt + locsymcount; | |
ebe50bae | 2100 | if (! htab->elf.dynamic_sections_created) |
68fb2e56 AM |
2101 | { |
2102 | /* Won't be used, but be safe. */ | |
2103 | for (; local_plt < end_local_plt; ++local_plt) | |
2104 | *local_plt = (bfd_vma) -1; | |
2105 | } | |
2106 | else | |
2107 | { | |
83c81bfe AM |
2108 | s = htab->splt; |
2109 | srel = htab->srelplt; | |
74d1c347 AM |
2110 | for (; local_plt < end_local_plt; ++local_plt) |
2111 | { | |
2112 | if (*local_plt > 0) | |
2113 | { | |
74d1c347 AM |
2114 | *local_plt = s->_raw_size; |
2115 | s->_raw_size += PLT_ENTRY_SIZE; | |
2116 | if (info->shared) | |
4dc86686 | 2117 | srel->_raw_size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2118 | } |
2119 | else | |
2120 | *local_plt = (bfd_vma) -1; | |
2121 | } | |
2122 | } | |
30667bf3 | 2123 | } |
30667bf3 | 2124 | |
e5ee5df1 AM |
2125 | /* Do all the .plt entries without relocs first. The dynamic linker |
2126 | uses the last .plt reloc to find the end of the .plt (and hence | |
2127 | the start of the .got) for lazy linking. */ | |
c39a58e6 | 2128 | elf_link_hash_traverse (&htab->elf, allocate_plt_static, info); |
a8d02d66 | 2129 | |
98ceb8ce AM |
2130 | /* Allocate global sym .plt and .got entries, and space for global |
2131 | sym dynamic relocs. */ | |
c39a58e6 | 2132 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
30667bf3 AM |
2133 | |
2134 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2135 | determined the sizes of the various dynamic sections. Allocate | |
2136 | memory for them. */ | |
b34976b6 | 2137 | relocs = FALSE; |
30667bf3 AM |
2138 | for (s = dynobj->sections; s != NULL; s = s->next) |
2139 | { | |
30667bf3 AM |
2140 | if ((s->flags & SEC_LINKER_CREATED) == 0) |
2141 | continue; | |
2142 | ||
83c81bfe | 2143 | if (s == htab->splt) |
68fb2e56 | 2144 | { |
83c81bfe | 2145 | if (htab->need_plt_stub) |
68fb2e56 AM |
2146 | { |
2147 | /* Make space for the plt stub at the end of the .plt | |
2148 | section. We want this stub right at the end, up | |
2149 | against the .got section. */ | |
83c81bfe | 2150 | int gotalign = bfd_section_alignment (dynobj, htab->sgot); |
68fb2e56 AM |
2151 | int pltalign = bfd_section_alignment (dynobj, s); |
2152 | bfd_size_type mask; | |
30667bf3 | 2153 | |
68fb2e56 AM |
2154 | if (gotalign > pltalign) |
2155 | bfd_set_section_alignment (dynobj, s, gotalign); | |
2156 | mask = ((bfd_size_type) 1 << gotalign) - 1; | |
2157 | s->_raw_size = (s->_raw_size + sizeof (plt_stub) + mask) & ~mask; | |
2158 | } | |
2159 | } | |
83c81bfe | 2160 | else if (s == htab->sgot) |
68fb2e56 AM |
2161 | ; |
2162 | else if (strncmp (bfd_get_section_name (dynobj, s), ".rela", 5) == 0) | |
30667bf3 AM |
2163 | { |
2164 | if (s->_raw_size != 0) | |
2165 | { | |
4e12ff7f AM |
2166 | /* Remember whether there are any reloc sections other |
2167 | than .rela.plt. */ | |
2168 | if (s != htab->srelplt) | |
b34976b6 | 2169 | relocs = TRUE; |
47d89dba | 2170 | |
30667bf3 AM |
2171 | /* We use the reloc_count field as a counter if we need |
2172 | to copy relocs into the output file. */ | |
2173 | s->reloc_count = 0; | |
2174 | } | |
2175 | } | |
30667bf3 AM |
2176 | else |
2177 | { | |
2178 | /* It's not one of our sections, so don't allocate space. */ | |
2179 | continue; | |
2180 | } | |
2181 | ||
2182 | if (s->_raw_size == 0) | |
2183 | { | |
2184 | /* If we don't need this section, strip it from the | |
2185 | output file. This is mostly to handle .rela.bss and | |
2186 | .rela.plt. We must create both sections in | |
2187 | create_dynamic_sections, because they must be created | |
2188 | before the linker maps input sections to output | |
2189 | sections. The linker does that before | |
2190 | adjust_dynamic_symbol is called, and it is that | |
2191 | function which decides whether anything needs to go | |
2192 | into these sections. */ | |
2193 | _bfd_strip_section_from_output (info, s); | |
2194 | continue; | |
2195 | } | |
2196 | ||
2197 | /* Allocate memory for the section contents. Zero it, because | |
2198 | we may not fill in all the reloc sections. */ | |
c39a58e6 | 2199 | s->contents = bfd_zalloc (dynobj, s->_raw_size); |
30667bf3 | 2200 | if (s->contents == NULL && s->_raw_size != 0) |
b34976b6 | 2201 | return FALSE; |
30667bf3 AM |
2202 | } |
2203 | ||
ebe50bae | 2204 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
2205 | { |
2206 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2207 | actually has nothing to do with the PLT, it is how we | |
2208 | communicate the LTP value of a load module to the dynamic | |
2209 | linker. */ | |
dc810e39 AM |
2210 | #define add_dynamic_entry(TAG, VAL) \ |
2211 | bfd_elf32_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL)) | |
2212 | ||
2213 | if (!add_dynamic_entry (DT_PLTGOT, 0)) | |
b34976b6 | 2214 | return FALSE; |
30667bf3 AM |
2215 | |
2216 | /* Add some entries to the .dynamic section. We fill in the | |
2217 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2218 | must add the entries now so that we get the correct size for | |
2219 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2220 | dynamic linker and used by the debugger. */ | |
dc810e39 | 2221 | if (!info->shared) |
30667bf3 | 2222 | { |
dc810e39 | 2223 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 2224 | return FALSE; |
30667bf3 AM |
2225 | } |
2226 | ||
83c81bfe | 2227 | if (htab->srelplt->_raw_size != 0) |
30667bf3 | 2228 | { |
dc810e39 AM |
2229 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
2230 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2231 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 2232 | return FALSE; |
30667bf3 AM |
2233 | } |
2234 | ||
2235 | if (relocs) | |
2236 | { | |
dc810e39 AM |
2237 | if (!add_dynamic_entry (DT_RELA, 0) |
2238 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2239 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 2240 | return FALSE; |
30667bf3 | 2241 | |
98ceb8ce AM |
2242 | /* If any dynamic relocs apply to a read-only section, |
2243 | then we need a DT_TEXTREL entry. */ | |
248866a8 | 2244 | if ((info->flags & DF_TEXTREL) == 0) |
c39a58e6 | 2245 | elf_link_hash_traverse (&htab->elf, readonly_dynrelocs, info); |
98ceb8ce AM |
2246 | |
2247 | if ((info->flags & DF_TEXTREL) != 0) | |
2248 | { | |
2249 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 2250 | return FALSE; |
98ceb8ce | 2251 | } |
30667bf3 AM |
2252 | } |
2253 | } | |
dc810e39 | 2254 | #undef add_dynamic_entry |
30667bf3 | 2255 | |
b34976b6 | 2256 | return TRUE; |
30667bf3 AM |
2257 | } |
2258 | ||
30667bf3 AM |
2259 | /* External entry points for sizing and building linker stubs. */ |
2260 | ||
b4655ea9 AM |
2261 | /* Set up various things so that we can make a list of input sections |
2262 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 2263 | 0 when no stubs will be needed, and 1 on success. */ |
30667bf3 | 2264 | |
b4655ea9 | 2265 | int |
c39a58e6 | 2266 | elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info) |
30667bf3 AM |
2267 | { |
2268 | bfd *input_bfd; | |
b4655ea9 AM |
2269 | unsigned int bfd_count; |
2270 | int top_id, top_index; | |
30667bf3 | 2271 | asection *section; |
25f72752 | 2272 | asection **input_list, **list; |
dc810e39 | 2273 | bfd_size_type amt; |
b4655ea9 | 2274 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
30667bf3 | 2275 | |
b4655ea9 AM |
2276 | if (htab->elf.root.creator->flavour != bfd_target_elf_flavour) |
2277 | return 0; | |
30667bf3 | 2278 | |
1badb539 AM |
2279 | /* Count the number of input BFDs and find the top input section id. */ |
2280 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2281 | input_bfd != NULL; |
2282 | input_bfd = input_bfd->link_next) | |
2283 | { | |
2284 | bfd_count += 1; | |
25f72752 AM |
2285 | for (section = input_bfd->sections; |
2286 | section != NULL; | |
2287 | section = section->next) | |
2288 | { | |
2289 | if (top_id < section->id) | |
2290 | top_id = section->id; | |
2291 | } | |
30667bf3 | 2292 | } |
b4655ea9 | 2293 | htab->bfd_count = bfd_count; |
30667bf3 | 2294 | |
dc810e39 | 2295 | amt = sizeof (struct map_stub) * (top_id + 1); |
c39a58e6 | 2296 | htab->stub_group = bfd_zmalloc (amt); |
83c81bfe | 2297 | if (htab->stub_group == NULL) |
b4655ea9 | 2298 | return -1; |
1badb539 | 2299 | |
b4655ea9 | 2300 | /* We can't use output_bfd->section_count here to find the top output |
1badb539 AM |
2301 | section index as some sections may have been removed, and |
2302 | _bfd_strip_section_from_output doesn't renumber the indices. */ | |
2303 | for (section = output_bfd->sections, top_index = 0; | |
2304 | section != NULL; | |
2305 | section = section->next) | |
2306 | { | |
2307 | if (top_index < section->index) | |
2308 | top_index = section->index; | |
2309 | } | |
2310 | ||
b4655ea9 | 2311 | htab->top_index = top_index; |
dc810e39 | 2312 | amt = sizeof (asection *) * (top_index + 1); |
c39a58e6 | 2313 | input_list = bfd_malloc (amt); |
b4655ea9 | 2314 | htab->input_list = input_list; |
25f72752 | 2315 | if (input_list == NULL) |
b4655ea9 | 2316 | return -1; |
25f72752 | 2317 | |
1badb539 AM |
2318 | /* For sections we aren't interested in, mark their entries with a |
2319 | value we can check later. */ | |
2320 | list = input_list + top_index; | |
2321 | do | |
2322 | *list = bfd_abs_section_ptr; | |
2323 | while (list-- != input_list); | |
2324 | ||
2325 | for (section = output_bfd->sections; | |
2326 | section != NULL; | |
2327 | section = section->next) | |
2328 | { | |
47d89dba | 2329 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2330 | input_list[section->index] = NULL; |
2331 | } | |
2332 | ||
b4655ea9 AM |
2333 | return 1; |
2334 | } | |
2335 | ||
2336 | /* The linker repeatedly calls this function for each input section, | |
2337 | in the order that input sections are linked into output sections. | |
2338 | Build lists of input sections to determine groupings between which | |
2339 | we may insert linker stubs. */ | |
2340 | ||
2341 | void | |
c39a58e6 | 2342 | elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec) |
b4655ea9 AM |
2343 | { |
2344 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
2345 | ||
2346 | if (isec->output_section->index <= htab->top_index) | |
25f72752 | 2347 | { |
b4655ea9 AM |
2348 | asection **list = htab->input_list + isec->output_section->index; |
2349 | if (*list != bfd_abs_section_ptr) | |
25f72752 | 2350 | { |
b4655ea9 | 2351 | /* Steal the link_sec pointer for our list. */ |
83c81bfe | 2352 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
b4655ea9 AM |
2353 | /* This happens to make the list in reverse order, |
2354 | which is what we want. */ | |
2355 | PREV_SEC (isec) = *list; | |
2356 | *list = isec; | |
25f72752 AM |
2357 | } |
2358 | } | |
b4655ea9 | 2359 | } |
25f72752 | 2360 | |
b4655ea9 AM |
2361 | /* See whether we can group stub sections together. Grouping stub |
2362 | sections may result in fewer stubs. More importantly, we need to | |
2363 | put all .init* and .fini* stubs at the beginning of the .init or | |
2364 | .fini output sections respectively, because glibc splits the | |
2365 | _init and _fini functions into multiple parts. Putting a stub in | |
2366 | the middle of a function is not a good idea. */ | |
2367 | ||
2368 | static void | |
c39a58e6 AM |
2369 | group_sections (struct elf32_hppa_link_hash_table *htab, |
2370 | bfd_size_type stub_group_size, | |
2371 | bfd_boolean stubs_always_before_branch) | |
b4655ea9 AM |
2372 | { |
2373 | asection **list = htab->input_list + htab->top_index; | |
1badb539 | 2374 | do |
25f72752 AM |
2375 | { |
2376 | asection *tail = *list; | |
1badb539 AM |
2377 | if (tail == bfd_abs_section_ptr) |
2378 | continue; | |
25f72752 AM |
2379 | while (tail != NULL) |
2380 | { | |
2381 | asection *curr; | |
2382 | asection *prev; | |
2383 | bfd_size_type total; | |
00b28bb0 | 2384 | bfd_boolean big_sec; |
25f72752 AM |
2385 | |
2386 | curr = tail; | |
2387 | if (tail->_cooked_size) | |
2388 | total = tail->_cooked_size; | |
2389 | else | |
2390 | total = tail->_raw_size; | |
00b28bb0 AM |
2391 | big_sec = total >= stub_group_size; |
2392 | ||
25f72752 AM |
2393 | while ((prev = PREV_SEC (curr)) != NULL |
2394 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2395 | < stub_group_size)) |
25f72752 AM |
2396 | curr = prev; |
2397 | ||
2398 | /* OK, the size from the start of CURR to the end is less | |
a248e267 | 2399 | than 240000 bytes and thus can be handled by one stub |
25f72752 | 2400 | section. (or the tail section is itself larger than |
a248e267 | 2401 | 240000 bytes, in which case we may be toast.) |
25f72752 AM |
2402 | We should really be keeping track of the total size of |
2403 | stubs added here, as stubs contribute to the final output | |
2404 | section size. That's a little tricky, and this way will | |
a248e267 AM |
2405 | only break if stubs added total more than 22144 bytes, or |
2406 | 2768 long branch stubs. It seems unlikely for more than | |
2407 | 2768 different functions to be called, especially from | |
2408 | code only 240000 bytes long. This limit used to be | |
2409 | 250000, but c++ code tends to generate lots of little | |
2410 | functions, and sometimes violated the assumption. */ | |
25f72752 AM |
2411 | do |
2412 | { | |
2413 | prev = PREV_SEC (tail); | |
2414 | /* Set up this stub group. */ | |
83c81bfe | 2415 | htab->stub_group[tail->id].link_sec = curr; |
25f72752 AM |
2416 | } |
2417 | while (tail != curr && (tail = prev) != NULL); | |
2418 | ||
a248e267 | 2419 | /* But wait, there's more! Input sections up to 240000 |
00b28bb0 AM |
2420 | bytes before the stub section can be handled by it too. |
2421 | Don't do this if we have a really large section after the | |
2422 | stubs, as adding more stubs increases the chance that | |
2423 | branches may not reach into the stub section. */ | |
2424 | if (!stubs_always_before_branch && !big_sec) | |
25f72752 | 2425 | { |
47d89dba AM |
2426 | total = 0; |
2427 | while (prev != NULL | |
2428 | && ((total += tail->output_offset - prev->output_offset) | |
2429 | < stub_group_size)) | |
2430 | { | |
2431 | tail = prev; | |
2432 | prev = PREV_SEC (tail); | |
83c81bfe | 2433 | htab->stub_group[tail->id].link_sec = curr; |
47d89dba | 2434 | } |
25f72752 AM |
2435 | } |
2436 | tail = prev; | |
2437 | } | |
2438 | } | |
b4655ea9 AM |
2439 | while (list-- != htab->input_list); |
2440 | free (htab->input_list); | |
1badb539 | 2441 | #undef PREV_SEC |
b4655ea9 AM |
2442 | } |
2443 | ||
2444 | /* Read in all local syms for all input bfds, and create hash entries | |
2445 | for export stubs if we are building a multi-subspace shared lib. | |
2446 | Returns -1 on error, 1 if export stubs created, 0 otherwise. */ | |
2447 | ||
2448 | static int | |
c39a58e6 | 2449 | get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info) |
b4655ea9 AM |
2450 | { |
2451 | unsigned int bfd_indx; | |
2452 | Elf_Internal_Sym *local_syms, **all_local_syms; | |
2453 | int stub_changed = 0; | |
2454 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
30667bf3 AM |
2455 | |
2456 | /* We want to read in symbol extension records only once. To do this | |
2457 | we need to read in the local symbols in parallel and save them for | |
2458 | later use; so hold pointers to the local symbols in an array. */ | |
b4655ea9 | 2459 | bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count; |
c39a58e6 | 2460 | all_local_syms = bfd_zmalloc (amt); |
b4655ea9 | 2461 | htab->all_local_syms = all_local_syms; |
30667bf3 | 2462 | if (all_local_syms == NULL) |
b4655ea9 | 2463 | return -1; |
30667bf3 AM |
2464 | |
2465 | /* Walk over all the input BFDs, swapping in local symbols. | |
2466 | If we are creating a shared library, create hash entries for the | |
2467 | export stubs. */ | |
b4655ea9 | 2468 | for (bfd_indx = 0; |
30667bf3 | 2469 | input_bfd != NULL; |
25f72752 | 2470 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2471 | { |
2472 | Elf_Internal_Shdr *symtab_hdr; | |
edd21aca | 2473 | |
252b5132 RH |
2474 | /* We'll need the symbol table in a second. */ |
2475 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2476 | if (symtab_hdr->sh_info == 0) | |
2477 | continue; | |
2478 | ||
6cdc0ccc AM |
2479 | /* We need an array of the local symbols attached to the input bfd. */ |
2480 | local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
edd21aca | 2481 | if (local_syms == NULL) |
edd21aca | 2482 | { |
6cdc0ccc AM |
2483 | local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, |
2484 | symtab_hdr->sh_info, 0, | |
2485 | NULL, NULL, NULL); | |
2486 | /* Cache them for elf_link_input_bfd. */ | |
2487 | symtab_hdr->contents = (unsigned char *) local_syms; | |
edd21aca | 2488 | } |
6cdc0ccc AM |
2489 | if (local_syms == NULL) |
2490 | return -1; | |
edd21aca | 2491 | |
6cdc0ccc | 2492 | all_local_syms[bfd_indx] = local_syms; |
edd21aca | 2493 | |
83c81bfe | 2494 | if (info->shared && htab->multi_subspace) |
30667bf3 | 2495 | { |
25f72752 AM |
2496 | struct elf_link_hash_entry **sym_hashes; |
2497 | struct elf_link_hash_entry **end_hashes; | |
30667bf3 AM |
2498 | unsigned int symcount; |
2499 | ||
2500 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2501 | - symtab_hdr->sh_info); | |
25f72752 AM |
2502 | sym_hashes = elf_sym_hashes (input_bfd); |
2503 | end_hashes = sym_hashes + symcount; | |
30667bf3 AM |
2504 | |
2505 | /* Look through the global syms for functions; We need to | |
2506 | build export stubs for all globally visible functions. */ | |
25f72752 | 2507 | for (; sym_hashes < end_hashes; sym_hashes++) |
30667bf3 AM |
2508 | { |
2509 | struct elf32_hppa_link_hash_entry *hash; | |
2510 | ||
25f72752 | 2511 | hash = (struct elf32_hppa_link_hash_entry *) *sym_hashes; |
30667bf3 AM |
2512 | |
2513 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2514 | || hash->elf.root.type == bfd_link_hash_warning) | |
2515 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2516 | hash->elf.root.u.i.link); | |
2517 | ||
2518 | /* At this point in the link, undefined syms have been | |
2519 | resolved, so we need to check that the symbol was | |
2520 | defined in this BFD. */ | |
2521 | if ((hash->elf.root.type == bfd_link_hash_defined | |
2522 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2523 | && hash->elf.type == STT_FUNC | |
2524 | && hash->elf.root.u.def.section->output_section != NULL | |
25f72752 AM |
2525 | && (hash->elf.root.u.def.section->output_section->owner |
2526 | == output_bfd) | |
30667bf3 AM |
2527 | && hash->elf.root.u.def.section->owner == input_bfd |
2528 | && (hash->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
2529 | && !(hash->elf.elf_link_hash_flags & ELF_LINK_FORCED_LOCAL) | |
2530 | && ELF_ST_VISIBILITY (hash->elf.other) == STV_DEFAULT) | |
2531 | { | |
2532 | asection *sec; | |
2533 | const char *stub_name; | |
2534 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2535 | ||
2536 | sec = hash->elf.root.u.def.section; | |
2537 | stub_name = hash->elf.root.root.string; | |
83c81bfe | 2538 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 | 2539 | stub_name, |
b34976b6 | 2540 | FALSE, FALSE); |
30667bf3 AM |
2541 | if (stub_entry == NULL) |
2542 | { | |
83c81bfe | 2543 | stub_entry = hppa_add_stub (stub_name, sec, htab); |
30667bf3 | 2544 | if (!stub_entry) |
b4655ea9 | 2545 | return -1; |
30667bf3 AM |
2546 | |
2547 | stub_entry->target_value = hash->elf.root.u.def.value; | |
2548 | stub_entry->target_section = hash->elf.root.u.def.section; | |
2549 | stub_entry->stub_type = hppa_stub_export; | |
2550 | stub_entry->h = hash; | |
2551 | stub_changed = 1; | |
2552 | } | |
2553 | else | |
2554 | { | |
2555 | (*_bfd_error_handler) (_("%s: duplicate export stub %s"), | |
8f615d07 AM |
2556 | bfd_archive_filename (input_bfd), |
2557 | stub_name); | |
30667bf3 AM |
2558 | } |
2559 | } | |
2560 | } | |
30667bf3 AM |
2561 | } |
2562 | } | |
edd21aca | 2563 | |
b4655ea9 AM |
2564 | return stub_changed; |
2565 | } | |
2566 | ||
2567 | /* Determine and set the size of the stub section for a final link. | |
2568 | ||
2569 | The basic idea here is to examine all the relocations looking for | |
2570 | PC-relative calls to a target that is unreachable with a "bl" | |
2571 | instruction. */ | |
2572 | ||
b34976b6 | 2573 | bfd_boolean |
c39a58e6 AM |
2574 | elf32_hppa_size_stubs |
2575 | (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info, | |
2576 | bfd_boolean multi_subspace, bfd_signed_vma group_size, | |
2577 | asection * (*add_stub_section) (const char *, asection *), | |
2578 | void (*layout_sections_again) (void)) | |
b4655ea9 AM |
2579 | { |
2580 | bfd_size_type stub_group_size; | |
b34976b6 AM |
2581 | bfd_boolean stubs_always_before_branch; |
2582 | bfd_boolean stub_changed; | |
b4655ea9 AM |
2583 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
2584 | ||
2585 | /* Stash our params away. */ | |
2586 | htab->stub_bfd = stub_bfd; | |
2587 | htab->multi_subspace = multi_subspace; | |
2588 | htab->add_stub_section = add_stub_section; | |
2589 | htab->layout_sections_again = layout_sections_again; | |
2590 | stubs_always_before_branch = group_size < 0; | |
2591 | if (group_size < 0) | |
2592 | stub_group_size = -group_size; | |
2593 | else | |
2594 | stub_group_size = group_size; | |
2595 | if (stub_group_size == 1) | |
2596 | { | |
2597 | /* Default values. */ | |
acc990f2 AM |
2598 | if (stubs_always_before_branch) |
2599 | { | |
2600 | stub_group_size = 7680000; | |
2601 | if (htab->has_17bit_branch || htab->multi_subspace) | |
2602 | stub_group_size = 240000; | |
2603 | if (htab->has_12bit_branch) | |
2604 | stub_group_size = 7500; | |
2605 | } | |
2606 | else | |
2607 | { | |
2608 | stub_group_size = 6971392; | |
2609 | if (htab->has_17bit_branch || htab->multi_subspace) | |
2610 | stub_group_size = 217856; | |
2611 | if (htab->has_12bit_branch) | |
2612 | stub_group_size = 6808; | |
2613 | } | |
b4655ea9 AM |
2614 | } |
2615 | ||
2616 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
2617 | ||
2618 | switch (get_local_syms (output_bfd, info->input_bfds, info)) | |
2619 | { | |
2620 | default: | |
2621 | if (htab->all_local_syms) | |
2622 | goto error_ret_free_local; | |
b34976b6 | 2623 | return FALSE; |
b4655ea9 AM |
2624 | |
2625 | case 0: | |
b34976b6 | 2626 | stub_changed = FALSE; |
b4655ea9 AM |
2627 | break; |
2628 | ||
2629 | case 1: | |
b34976b6 | 2630 | stub_changed = TRUE; |
b4655ea9 AM |
2631 | break; |
2632 | } | |
2633 | ||
edd21aca AM |
2634 | while (1) |
2635 | { | |
b4655ea9 AM |
2636 | bfd *input_bfd; |
2637 | unsigned int bfd_indx; | |
30667bf3 AM |
2638 | asection *stub_sec; |
2639 | ||
25f72752 | 2640 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2641 | input_bfd != NULL; |
25f72752 | 2642 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2643 | { |
2644 | Elf_Internal_Shdr *symtab_hdr; | |
b4655ea9 AM |
2645 | asection *section; |
2646 | Elf_Internal_Sym *local_syms; | |
30667bf3 AM |
2647 | |
2648 | /* We'll need the symbol table in a second. */ | |
2649 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2650 | if (symtab_hdr->sh_info == 0) | |
2651 | continue; | |
2652 | ||
b4655ea9 | 2653 | local_syms = htab->all_local_syms[bfd_indx]; |
30667bf3 AM |
2654 | |
2655 | /* Walk over each section attached to the input bfd. */ | |
2656 | for (section = input_bfd->sections; | |
2657 | section != NULL; | |
25f72752 | 2658 | section = section->next) |
30667bf3 | 2659 | { |
30667bf3 AM |
2660 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
2661 | ||
2662 | /* If there aren't any relocs, then there's nothing more | |
2663 | to do. */ | |
2664 | if ((section->flags & SEC_RELOC) == 0 | |
2665 | || section->reloc_count == 0) | |
2666 | continue; | |
2667 | ||
25f72752 AM |
2668 | /* If this section is a link-once section that will be |
2669 | discarded, then don't create any stubs. */ | |
2670 | if (section->output_section == NULL | |
2671 | || section->output_section->owner != output_bfd) | |
2672 | continue; | |
2673 | ||
1e2f5b6e AM |
2674 | /* Get the relocs. */ |
2675 | internal_relocs | |
c39a58e6 | 2676 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
45d6a902 | 2677 | info->keep_memory); |
30667bf3 | 2678 | if (internal_relocs == NULL) |
1e2f5b6e | 2679 | goto error_ret_free_local; |
30667bf3 AM |
2680 | |
2681 | /* Now examine each relocation. */ | |
2682 | irela = internal_relocs; | |
2683 | irelaend = irela + section->reloc_count; | |
2684 | for (; irela < irelaend; irela++) | |
2685 | { | |
2686 | unsigned int r_type, r_indx; | |
2687 | enum elf32_hppa_stub_type stub_type; | |
2688 | struct elf32_hppa_stub_hash_entry *stub_entry; | |
2689 | asection *sym_sec; | |
2690 | bfd_vma sym_value; | |
2691 | bfd_vma destination; | |
2692 | struct elf32_hppa_link_hash_entry *hash; | |
2693 | char *stub_name; | |
25f72752 | 2694 | const asection *id_sec; |
30667bf3 AM |
2695 | |
2696 | r_type = ELF32_R_TYPE (irela->r_info); | |
2697 | r_indx = ELF32_R_SYM (irela->r_info); | |
2698 | ||
2699 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2700 | { | |
2701 | bfd_set_error (bfd_error_bad_value); | |
1e2f5b6e AM |
2702 | error_ret_free_internal: |
2703 | if (elf_section_data (section)->relocs == NULL) | |
2704 | free (internal_relocs); | |
2705 | goto error_ret_free_local; | |
30667bf3 AM |
2706 | } |
2707 | ||
2708 | /* Only look for stubs on call instructions. */ | |
2709 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
2710 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
2711 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
2712 | continue; | |
2713 | ||
2714 | /* Now determine the call target, its name, value, | |
2715 | section. */ | |
2716 | sym_sec = NULL; | |
2717 | sym_value = 0; | |
2718 | destination = 0; | |
2719 | hash = NULL; | |
2720 | if (r_indx < symtab_hdr->sh_info) | |
2721 | { | |
2722 | /* It's a local symbol. */ | |
2723 | Elf_Internal_Sym *sym; | |
2724 | Elf_Internal_Shdr *hdr; | |
2725 | ||
2726 | sym = local_syms + r_indx; | |
2727 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
2728 | sym_sec = hdr->bfd_section; | |
2729 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
2730 | sym_value = sym->st_value; | |
2731 | destination = (sym_value + irela->r_addend | |
2732 | + sym_sec->output_offset | |
2733 | + sym_sec->output_section->vma); | |
2734 | } | |
2735 | else | |
2736 | { | |
2737 | /* It's an external symbol. */ | |
2738 | int e_indx; | |
2739 | ||
2740 | e_indx = r_indx - symtab_hdr->sh_info; | |
2741 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2742 | elf_sym_hashes (input_bfd)[e_indx]); | |
2743 | ||
2744 | while (hash->elf.root.type == bfd_link_hash_indirect | |
2745 | || hash->elf.root.type == bfd_link_hash_warning) | |
2746 | hash = ((struct elf32_hppa_link_hash_entry *) | |
2747 | hash->elf.root.u.i.link); | |
2748 | ||
2749 | if (hash->elf.root.type == bfd_link_hash_defined | |
2750 | || hash->elf.root.type == bfd_link_hash_defweak) | |
2751 | { | |
2752 | sym_sec = hash->elf.root.u.def.section; | |
2753 | sym_value = hash->elf.root.u.def.value; | |
2754 | if (sym_sec->output_section != NULL) | |
2755 | destination = (sym_value + irela->r_addend | |
2756 | + sym_sec->output_offset | |
2757 | + sym_sec->output_section->vma); | |
2758 | } | |
2759 | else if (hash->elf.root.type == bfd_link_hash_undefweak) | |
c432ba1a AM |
2760 | { |
2761 | if (! info->shared) | |
2762 | continue; | |
2763 | } | |
30667bf3 | 2764 | else if (hash->elf.root.type == bfd_link_hash_undefined) |
c432ba1a AM |
2765 | { |
2766 | if (! (info->shared | |
560e09e9 | 2767 | && info->unresolved_syms_in_objects == RM_IGNORE |
c432ba1a AM |
2768 | && (ELF_ST_VISIBILITY (hash->elf.other) |
2769 | == STV_DEFAULT) | |
2770 | && hash->elf.type != STT_PARISC_MILLI)) | |
2771 | continue; | |
2772 | } | |
30667bf3 AM |
2773 | else |
2774 | { | |
2775 | bfd_set_error (bfd_error_bad_value); | |
2776 | goto error_ret_free_internal; | |
2777 | } | |
2778 | } | |
2779 | ||
2780 | /* Determine what (if any) linker stub is needed. */ | |
2781 | stub_type = hppa_type_of_stub (section, irela, hash, | |
a252afa4 | 2782 | destination, info); |
30667bf3 AM |
2783 | if (stub_type == hppa_stub_none) |
2784 | continue; | |
2785 | ||
25f72752 | 2786 | /* Support for grouping stub sections. */ |
83c81bfe | 2787 | id_sec = htab->stub_group[section->id].link_sec; |
25f72752 | 2788 | |
30667bf3 | 2789 | /* Get the name of this stub. */ |
25f72752 | 2790 | stub_name = hppa_stub_name (id_sec, sym_sec, hash, irela); |
30667bf3 AM |
2791 | if (!stub_name) |
2792 | goto error_ret_free_internal; | |
2793 | ||
83c81bfe | 2794 | stub_entry = hppa_stub_hash_lookup (&htab->stub_hash_table, |
30667bf3 | 2795 | stub_name, |
b34976b6 | 2796 | FALSE, FALSE); |
30667bf3 AM |
2797 | if (stub_entry != NULL) |
2798 | { | |
2799 | /* The proper stub has already been created. */ | |
2800 | free (stub_name); | |
2801 | continue; | |
2802 | } | |
2803 | ||
83c81bfe | 2804 | stub_entry = hppa_add_stub (stub_name, section, htab); |
30667bf3 AM |
2805 | if (stub_entry == NULL) |
2806 | { | |
2807 | free (stub_name); | |
1e2f5b6e | 2808 | goto error_ret_free_internal; |
30667bf3 AM |
2809 | } |
2810 | ||
2811 | stub_entry->target_value = sym_value; | |
2812 | stub_entry->target_section = sym_sec; | |
2813 | stub_entry->stub_type = stub_type; | |
2814 | if (info->shared) | |
2815 | { | |
2816 | if (stub_type == hppa_stub_import) | |
2817 | stub_entry->stub_type = hppa_stub_import_shared; | |
98ceb8ce | 2818 | else if (stub_type == hppa_stub_long_branch) |
30667bf3 AM |
2819 | stub_entry->stub_type = hppa_stub_long_branch_shared; |
2820 | } | |
2821 | stub_entry->h = hash; | |
b34976b6 | 2822 | stub_changed = TRUE; |
30667bf3 AM |
2823 | } |
2824 | ||
2825 | /* We're done with the internal relocs, free them. */ | |
1e2f5b6e AM |
2826 | if (elf_section_data (section)->relocs == NULL) |
2827 | free (internal_relocs); | |
30667bf3 AM |
2828 | } |
2829 | } | |
2830 | ||
2831 | if (!stub_changed) | |
2832 | break; | |
2833 | ||
2834 | /* OK, we've added some stubs. Find out the new size of the | |
2835 | stub sections. */ | |
83c81bfe | 2836 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
2837 | stub_sec != NULL; |
2838 | stub_sec = stub_sec->next) | |
2839 | { | |
74d1c347 AM |
2840 | stub_sec->_raw_size = 0; |
2841 | stub_sec->_cooked_size = 0; | |
2842 | } | |
74d1c347 | 2843 | |
83c81bfe | 2844 | bfd_hash_traverse (&htab->stub_hash_table, hppa_size_one_stub, htab); |
74d1c347 | 2845 | |
30667bf3 | 2846 | /* Ask the linker to do its stuff. */ |
83c81bfe | 2847 | (*htab->layout_sections_again) (); |
b34976b6 | 2848 | stub_changed = FALSE; |
30667bf3 AM |
2849 | } |
2850 | ||
6cdc0ccc | 2851 | free (htab->all_local_syms); |
b34976b6 | 2852 | return TRUE; |
30667bf3 AM |
2853 | |
2854 | error_ret_free_local: | |
b4655ea9 | 2855 | free (htab->all_local_syms); |
b34976b6 | 2856 | return FALSE; |
30667bf3 AM |
2857 | } |
2858 | ||
30667bf3 AM |
2859 | /* For a final link, this function is called after we have sized the |
2860 | stubs to provide a value for __gp. */ | |
2861 | ||
b34976b6 | 2862 | bfd_boolean |
c39a58e6 | 2863 | elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info) |
30667bf3 | 2864 | { |
b4655ea9 AM |
2865 | struct bfd_link_hash_entry *h; |
2866 | asection *sec = NULL; | |
2867 | bfd_vma gp_val = 0; | |
83c81bfe | 2868 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2869 | |
83c81bfe | 2870 | htab = hppa_link_hash_table (info); |
b34976b6 | 2871 | h = bfd_link_hash_lookup (&htab->elf.root, "$global$", FALSE, FALSE, FALSE); |
30667bf3 | 2872 | |
df8634e3 | 2873 | if (h != NULL |
b4655ea9 AM |
2874 | && (h->type == bfd_link_hash_defined |
2875 | || h->type == bfd_link_hash_defweak)) | |
30667bf3 | 2876 | { |
b4655ea9 AM |
2877 | gp_val = h->u.def.value; |
2878 | sec = h->u.def.section; | |
30667bf3 AM |
2879 | } |
2880 | else | |
2881 | { | |
b4655ea9 AM |
2882 | asection *splt; |
2883 | asection *sgot; | |
2884 | ||
2885 | if (htab->elf.root.creator->flavour == bfd_target_elf_flavour) | |
2886 | { | |
2887 | splt = htab->splt; | |
2888 | sgot = htab->sgot; | |
2889 | } | |
2890 | else | |
2891 | { | |
2892 | /* If we're not elf, look up the output sections in the | |
2893 | hope we may actually find them. */ | |
2894 | splt = bfd_get_section_by_name (abfd, ".plt"); | |
2895 | sgot = bfd_get_section_by_name (abfd, ".got"); | |
2896 | } | |
2897 | ||
74d1c347 AM |
2898 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
2899 | or .data, if these sections exist. In the case of choosing | |
2900 | .plt try to make the LTP ideal for addressing anywhere in the | |
2901 | .plt or .got with a 14 bit signed offset. Typically, the end | |
2902 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
2903 | if either the .plt or .got is larger than 0x2000. If both | |
2904 | the .plt and .got are smaller than 0x2000, choose the end of | |
2905 | the .plt section. */ | |
b4655ea9 | 2906 | sec = splt; |
74d1c347 | 2907 | if (sec != NULL) |
30667bf3 | 2908 | { |
74d1c347 | 2909 | gp_val = sec->_raw_size; |
b4655ea9 | 2910 | if (gp_val > 0x2000 || (sgot && sgot->_raw_size > 0x2000)) |
74d1c347 AM |
2911 | { |
2912 | gp_val = 0x2000; | |
2913 | } | |
2914 | } | |
2915 | else | |
2916 | { | |
b4655ea9 | 2917 | sec = sgot; |
74d1c347 AM |
2918 | if (sec != NULL) |
2919 | { | |
2920 | /* We know we don't have a .plt. If .got is large, | |
2921 | offset our LTP. */ | |
2922 | if (sec->_raw_size > 0x2000) | |
2923 | gp_val = 0x2000; | |
2924 | } | |
2925 | else | |
2926 | { | |
2927 | /* No .plt or .got. Who cares what the LTP is? */ | |
2928 | sec = bfd_get_section_by_name (abfd, ".data"); | |
2929 | } | |
30667bf3 | 2930 | } |
df8634e3 AM |
2931 | |
2932 | if (h != NULL) | |
2933 | { | |
b4655ea9 AM |
2934 | h->type = bfd_link_hash_defined; |
2935 | h->u.def.value = gp_val; | |
df8634e3 | 2936 | if (sec != NULL) |
b4655ea9 | 2937 | h->u.def.section = sec; |
df8634e3 | 2938 | else |
b4655ea9 | 2939 | h->u.def.section = bfd_abs_section_ptr; |
df8634e3 | 2940 | } |
30667bf3 AM |
2941 | } |
2942 | ||
b32b5d6e | 2943 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
2944 | gp_val += sec->output_section->vma + sec->output_offset; |
2945 | ||
2946 | elf_gp (abfd) = gp_val; | |
b34976b6 | 2947 | return TRUE; |
30667bf3 AM |
2948 | } |
2949 | ||
30667bf3 AM |
2950 | /* Build all the stubs associated with the current output file. The |
2951 | stubs are kept in a hash table attached to the main linker hash | |
2952 | table. We also set up the .plt entries for statically linked PIC | |
2953 | functions here. This function is called via hppaelf_finish in the | |
2954 | linker. */ | |
2955 | ||
b34976b6 | 2956 | bfd_boolean |
c39a58e6 | 2957 | elf32_hppa_build_stubs (struct bfd_link_info *info) |
30667bf3 AM |
2958 | { |
2959 | asection *stub_sec; | |
2960 | struct bfd_hash_table *table; | |
83c81bfe | 2961 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2962 | |
83c81bfe | 2963 | htab = hppa_link_hash_table (info); |
30667bf3 | 2964 | |
83c81bfe | 2965 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
2966 | stub_sec != NULL; |
2967 | stub_sec = stub_sec->next) | |
2968 | { | |
dc810e39 | 2969 | bfd_size_type size; |
30667bf3 AM |
2970 | |
2971 | /* Allocate memory to hold the linker stubs. */ | |
74d1c347 | 2972 | size = stub_sec->_raw_size; |
c39a58e6 | 2973 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); |
30667bf3 | 2974 | if (stub_sec->contents == NULL && size != 0) |
b34976b6 | 2975 | return FALSE; |
74d1c347 | 2976 | stub_sec->_raw_size = 0; |
30667bf3 AM |
2977 | } |
2978 | ||
2979 | /* Build the stubs as directed by the stub hash table. */ | |
83c81bfe | 2980 | table = &htab->stub_hash_table; |
30667bf3 AM |
2981 | bfd_hash_traverse (table, hppa_build_one_stub, info); |
2982 | ||
b34976b6 | 2983 | return TRUE; |
30667bf3 AM |
2984 | } |
2985 | ||
c46b7515 AM |
2986 | /* Perform a final link. */ |
2987 | ||
b34976b6 | 2988 | static bfd_boolean |
c39a58e6 | 2989 | elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info) |
c46b7515 | 2990 | { |
4dc86686 AM |
2991 | /* Invoke the regular ELF linker to do all the work. */ |
2992 | if (!bfd_elf32_bfd_final_link (abfd, info)) | |
b34976b6 | 2993 | return FALSE; |
c46b7515 AM |
2994 | |
2995 | /* If we're producing a final executable, sort the contents of the | |
985142a4 | 2996 | unwind section. */ |
46fe4e66 | 2997 | return elf_hppa_sort_unwind (abfd); |
c46b7515 AM |
2998 | } |
2999 | ||
3000 | /* Record the lowest address for the data and text segments. */ | |
3001 | ||
3002 | static void | |
c39a58e6 AM |
3003 | hppa_record_segment_addr (bfd *abfd ATTRIBUTE_UNUSED, |
3004 | asection *section, | |
3005 | void *data) | |
c46b7515 | 3006 | { |
83c81bfe | 3007 | struct elf32_hppa_link_hash_table *htab; |
c46b7515 | 3008 | |
83c81bfe | 3009 | htab = (struct elf32_hppa_link_hash_table *) data; |
c46b7515 AM |
3010 | |
3011 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3012 | { | |
3013 | bfd_vma value = section->vma - section->filepos; | |
3014 | ||
3015 | if ((section->flags & SEC_READONLY) != 0) | |
3016 | { | |
83c81bfe AM |
3017 | if (value < htab->text_segment_base) |
3018 | htab->text_segment_base = value; | |
c46b7515 AM |
3019 | } |
3020 | else | |
3021 | { | |
83c81bfe AM |
3022 | if (value < htab->data_segment_base) |
3023 | htab->data_segment_base = value; | |
c46b7515 AM |
3024 | } |
3025 | } | |
3026 | } | |
3027 | ||
30667bf3 AM |
3028 | /* Perform a relocation as part of a final link. */ |
3029 | ||
3030 | static bfd_reloc_status_type | |
c39a58e6 AM |
3031 | final_link_relocate (asection *input_section, |
3032 | bfd_byte *contents, | |
3033 | const Elf_Internal_Rela *rel, | |
3034 | bfd_vma value, | |
3035 | struct elf32_hppa_link_hash_table *htab, | |
3036 | asection *sym_sec, | |
a252afa4 DA |
3037 | struct elf32_hppa_link_hash_entry *h, |
3038 | struct bfd_link_info *info) | |
30667bf3 AM |
3039 | { |
3040 | int insn; | |
3041 | unsigned int r_type = ELF32_R_TYPE (rel->r_info); | |
a252afa4 | 3042 | unsigned int orig_r_type = r_type; |
30667bf3 AM |
3043 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; |
3044 | int r_format = howto->bitsize; | |
3045 | enum hppa_reloc_field_selector_type_alt r_field; | |
3046 | bfd *input_bfd = input_section->owner; | |
3047 | bfd_vma offset = rel->r_offset; | |
3048 | bfd_vma max_branch_offset = 0; | |
3049 | bfd_byte *hit_data = contents + offset; | |
3050 | bfd_signed_vma addend = rel->r_addend; | |
3051 | bfd_vma location; | |
3052 | struct elf32_hppa_stub_hash_entry *stub_entry = NULL; | |
3053 | int val; | |
3054 | ||
3055 | if (r_type == R_PARISC_NONE) | |
3056 | return bfd_reloc_ok; | |
3057 | ||
3058 | insn = bfd_get_32 (input_bfd, hit_data); | |
3059 | ||
3060 | /* Find out where we are and where we're going. */ | |
3061 | location = (offset + | |
3062 | input_section->output_offset + | |
3063 | input_section->output_section->vma); | |
3064 | ||
a252afa4 DA |
3065 | /* If we are not building a shared library, convert DLTIND relocs to |
3066 | DPREL relocs. */ | |
3067 | if (!info->shared) | |
3068 | { | |
3069 | switch (r_type) | |
3070 | { | |
3071 | case R_PARISC_DLTIND21L: | |
3072 | r_type = R_PARISC_DPREL21L; | |
3073 | break; | |
3074 | ||
3075 | case R_PARISC_DLTIND14R: | |
3076 | r_type = R_PARISC_DPREL14R; | |
3077 | break; | |
3078 | ||
3079 | case R_PARISC_DLTIND14F: | |
3080 | r_type = R_PARISC_DPREL14F; | |
3081 | break; | |
3082 | } | |
3083 | } | |
3084 | ||
30667bf3 AM |
3085 | switch (r_type) |
3086 | { | |
3087 | case R_PARISC_PCREL12F: | |
3088 | case R_PARISC_PCREL17F: | |
3089 | case R_PARISC_PCREL22F: | |
067fa4a6 AM |
3090 | /* If this call should go via the plt, find the import stub in |
3091 | the stub hash. */ | |
30667bf3 AM |
3092 | if (sym_sec == NULL |
3093 | || sym_sec->output_section == NULL | |
12cca0d2 | 3094 | || (h != NULL |
067fa4a6 | 3095 | && h->elf.plt.offset != (bfd_vma) -1 |
a252afa4 DA |
3096 | && h->elf.dynindx != -1 |
3097 | && !h->plabel | |
3098 | && (info->shared | |
3099 | || !(h->elf.elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) | |
3100 | || h->elf.root.type == bfd_link_hash_defweak))) | |
30667bf3 AM |
3101 | { |
3102 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3103 | h, rel, htab); |
30667bf3 AM |
3104 | if (stub_entry != NULL) |
3105 | { | |
3106 | value = (stub_entry->stub_offset | |
3107 | + stub_entry->stub_sec->output_offset | |
3108 | + stub_entry->stub_sec->output_section->vma); | |
3109 | addend = 0; | |
3110 | } | |
3111 | else if (sym_sec == NULL && h != NULL | |
3112 | && h->elf.root.type == bfd_link_hash_undefweak) | |
3113 | { | |
db20fd76 AM |
3114 | /* It's OK if undefined weak. Calls to undefined weak |
3115 | symbols behave as if the "called" function | |
3116 | immediately returns. We can thus call to a weak | |
3117 | function without first checking whether the function | |
3118 | is defined. */ | |
30667bf3 | 3119 | value = location; |
db20fd76 | 3120 | addend = 8; |
30667bf3 AM |
3121 | } |
3122 | else | |
f09ebc7d | 3123 | return bfd_reloc_undefined; |
30667bf3 AM |
3124 | } |
3125 | /* Fall thru. */ | |
3126 | ||
3127 | case R_PARISC_PCREL21L: | |
3128 | case R_PARISC_PCREL17C: | |
3129 | case R_PARISC_PCREL17R: | |
3130 | case R_PARISC_PCREL14R: | |
3131 | case R_PARISC_PCREL14F: | |
3132 | /* Make it a pc relative offset. */ | |
3133 | value -= location; | |
3134 | addend -= 8; | |
3135 | break; | |
3136 | ||
3137 | case R_PARISC_DPREL21L: | |
3138 | case R_PARISC_DPREL14R: | |
3139 | case R_PARISC_DPREL14F: | |
a252afa4 DA |
3140 | /* Convert instructions that use the linkage table pointer (r19) to |
3141 | instructions that use the global data pointer (dp). This is the | |
3142 | most efficient way of using PIC code in an incomplete executable, | |
3143 | but the user must follow the standard runtime conventions for | |
3144 | accessing data for this to work. */ | |
3145 | if (orig_r_type == R_PARISC_DLTIND21L) | |
3146 | { | |
3147 | /* Convert addil instructions if the original reloc was a | |
3148 | DLTIND21L. GCC sometimes uses a register other than r19 for | |
3149 | the operation, so we must convert any addil instruction | |
3150 | that uses this relocation. */ | |
3151 | if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26)) | |
3152 | insn = ADDIL_DP; | |
3153 | else | |
3154 | /* We must have a ldil instruction. It's too hard to find | |
3155 | and convert the associated add instruction, so issue an | |
3156 | error. */ | |
3157 | (*_bfd_error_handler) | |
3158 | (_("%s(%s+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"), | |
3159 | bfd_archive_filename (input_bfd), | |
3160 | input_section->name, | |
3161 | (long) rel->r_offset, | |
3162 | howto->name, | |
3163 | insn); | |
3164 | } | |
3165 | else if (orig_r_type == R_PARISC_DLTIND14F) | |
3166 | { | |
3167 | /* This must be a format 1 load/store. Change the base | |
3168 | register to dp. */ | |
3169 | insn = (insn & 0xfc1ffff) | (27 << 21); | |
3170 | } | |
3171 | ||
30667bf3 | 3172 | /* For all the DP relative relocations, we need to examine the symbol's |
95d0f04a DA |
3173 | section. If it has no section or if it's a code section, then |
3174 | "data pointer relative" makes no sense. In that case we don't | |
3175 | adjust the "value", and for 21 bit addil instructions, we change the | |
3176 | source addend register from %dp to %r0. This situation commonly | |
3177 | arises for undefined weak symbols and when a variable's "constness" | |
30667bf3 AM |
3178 | is declared differently from the way the variable is defined. For |
3179 | instance: "extern int foo" with foo defined as "const int foo". */ | |
95d0f04a | 3180 | if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0) |
30667bf3 AM |
3181 | { |
3182 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3183 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3184 | { | |
3185 | insn &= ~ (0x1f << 21); | |
067fa4a6 | 3186 | #if 0 /* debug them. */ |
30667bf3 AM |
3187 | (*_bfd_error_handler) |
3188 | (_("%s(%s+0x%lx): fixing %s"), | |
8f615d07 | 3189 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3190 | input_section->name, |
3191 | (long) rel->r_offset, | |
3192 | howto->name); | |
3193 | #endif | |
3194 | } | |
3195 | /* Now try to make things easy for the dynamic linker. */ | |
3196 | ||
3197 | break; | |
3198 | } | |
74d1c347 | 3199 | /* Fall thru. */ |
30667bf3 AM |
3200 | |
3201 | case R_PARISC_DLTIND21L: | |
3202 | case R_PARISC_DLTIND14R: | |
3203 | case R_PARISC_DLTIND14F: | |
3204 | value -= elf_gp (input_section->output_section->owner); | |
3205 | break; | |
3206 | ||
c46b7515 AM |
3207 | case R_PARISC_SEGREL32: |
3208 | if ((sym_sec->flags & SEC_CODE) != 0) | |
83c81bfe | 3209 | value -= htab->text_segment_base; |
c46b7515 | 3210 | else |
83c81bfe | 3211 | value -= htab->data_segment_base; |
c46b7515 AM |
3212 | break; |
3213 | ||
30667bf3 AM |
3214 | default: |
3215 | break; | |
3216 | } | |
3217 | ||
3218 | switch (r_type) | |
3219 | { | |
3220 | case R_PARISC_DIR32: | |
47d89dba | 3221 | case R_PARISC_DIR14F: |
30667bf3 AM |
3222 | case R_PARISC_DIR17F: |
3223 | case R_PARISC_PCREL17C: | |
3224 | case R_PARISC_PCREL14F: | |
3225 | case R_PARISC_DPREL14F: | |
3226 | case R_PARISC_PLABEL32: | |
3227 | case R_PARISC_DLTIND14F: | |
3228 | case R_PARISC_SEGBASE: | |
3229 | case R_PARISC_SEGREL32: | |
3230 | r_field = e_fsel; | |
3231 | break; | |
3232 | ||
1bf42538 | 3233 | case R_PARISC_DLTIND21L: |
30667bf3 | 3234 | case R_PARISC_PCREL21L: |
30667bf3 | 3235 | case R_PARISC_PLABEL21L: |
1bf42538 JL |
3236 | r_field = e_lsel; |
3237 | break; | |
3238 | ||
3239 | case R_PARISC_DIR21L: | |
3240 | case R_PARISC_DPREL21L: | |
30667bf3 AM |
3241 | r_field = e_lrsel; |
3242 | break; | |
3243 | ||
30667bf3 | 3244 | case R_PARISC_PCREL17R: |
30667bf3 | 3245 | case R_PARISC_PCREL14R: |
30667bf3 AM |
3246 | case R_PARISC_PLABEL14R: |
3247 | case R_PARISC_DLTIND14R: | |
1bf42538 JL |
3248 | r_field = e_rsel; |
3249 | break; | |
3250 | ||
3251 | case R_PARISC_DIR17R: | |
3252 | case R_PARISC_DIR14R: | |
3253 | case R_PARISC_DPREL14R: | |
30667bf3 AM |
3254 | r_field = e_rrsel; |
3255 | break; | |
3256 | ||
3257 | case R_PARISC_PCREL12F: | |
3258 | case R_PARISC_PCREL17F: | |
3259 | case R_PARISC_PCREL22F: | |
3260 | r_field = e_fsel; | |
3261 | ||
3262 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3263 | { | |
3264 | max_branch_offset = (1 << (17-1)) << 2; | |
3265 | } | |
3266 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3267 | { | |
3268 | max_branch_offset = (1 << (12-1)) << 2; | |
3269 | } | |
3270 | else | |
3271 | { | |
3272 | max_branch_offset = (1 << (22-1)) << 2; | |
3273 | } | |
3274 | ||
3275 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3276 | undefined syms. We've already checked for a stub for the | |
3277 | shared undefined case. */ | |
3278 | if (sym_sec == NULL) | |
3279 | break; | |
3280 | ||
3281 | /* If the branch is out of reach, then redirect the | |
3282 | call to the local stub for this function. */ | |
3283 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3284 | { | |
3285 | stub_entry = hppa_get_stub_entry (input_section, sym_sec, | |
83c81bfe | 3286 | h, rel, htab); |
30667bf3 | 3287 | if (stub_entry == NULL) |
f09ebc7d | 3288 | return bfd_reloc_undefined; |
30667bf3 AM |
3289 | |
3290 | /* Munge up the value and addend so that we call the stub | |
3291 | rather than the procedure directly. */ | |
3292 | value = (stub_entry->stub_offset | |
3293 | + stub_entry->stub_sec->output_offset | |
3294 | + stub_entry->stub_sec->output_section->vma | |
3295 | - location); | |
3296 | addend = -8; | |
3297 | } | |
3298 | break; | |
3299 | ||
3300 | /* Something we don't know how to handle. */ | |
3301 | default: | |
3302 | return bfd_reloc_notsupported; | |
3303 | } | |
3304 | ||
3305 | /* Make sure we can reach the stub. */ | |
3306 | if (max_branch_offset != 0 | |
3307 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3308 | { | |
3309 | (*_bfd_error_handler) | |
3310 | (_("%s(%s+0x%lx): cannot reach %s, recompile with -ffunction-sections"), | |
8f615d07 | 3311 | bfd_archive_filename (input_bfd), |
30667bf3 AM |
3312 | input_section->name, |
3313 | (long) rel->r_offset, | |
3314 | stub_entry->root.string); | |
ce757d15 | 3315 | bfd_set_error (bfd_error_bad_value); |
30667bf3 AM |
3316 | return bfd_reloc_notsupported; |
3317 | } | |
3318 | ||
3319 | val = hppa_field_adjust (value, addend, r_field); | |
3320 | ||
3321 | switch (r_type) | |
3322 | { | |
3323 | case R_PARISC_PCREL12F: | |
3324 | case R_PARISC_PCREL17C: | |
3325 | case R_PARISC_PCREL17F: | |
3326 | case R_PARISC_PCREL17R: | |
3327 | case R_PARISC_PCREL22F: | |
3328 | case R_PARISC_DIR17F: | |
3329 | case R_PARISC_DIR17R: | |
3330 | /* This is a branch. Divide the offset by four. | |
3331 | Note that we need to decide whether it's a branch or | |
3332 | otherwise by inspecting the reloc. Inspecting insn won't | |
3333 | work as insn might be from a .word directive. */ | |
3334 | val >>= 2; | |
3335 | break; | |
3336 | ||
3337 | default: | |
3338 | break; | |
3339 | } | |
3340 | ||
3341 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3342 | ||
3343 | /* Update the instruction word. */ | |
74d1c347 | 3344 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3345 | return bfd_reloc_ok; |
3346 | } | |
3347 | ||
30667bf3 AM |
3348 | /* Relocate an HPPA ELF section. */ |
3349 | ||
b34976b6 | 3350 | static bfd_boolean |
c39a58e6 AM |
3351 | elf32_hppa_relocate_section (bfd *output_bfd, |
3352 | struct bfd_link_info *info, | |
3353 | bfd *input_bfd, | |
3354 | asection *input_section, | |
3355 | bfd_byte *contents, | |
3356 | Elf_Internal_Rela *relocs, | |
3357 | Elf_Internal_Sym *local_syms, | |
3358 | asection **local_sections) | |
30667bf3 | 3359 | { |
30667bf3 | 3360 | bfd_vma *local_got_offsets; |
83c81bfe | 3361 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3362 | Elf_Internal_Shdr *symtab_hdr; |
3363 | Elf_Internal_Rela *rel; | |
3364 | Elf_Internal_Rela *relend; | |
30667bf3 | 3365 | |
1049f94e | 3366 | if (info->relocatable) |
b34976b6 | 3367 | return TRUE; |
f0fe0e16 | 3368 | |
30667bf3 AM |
3369 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
3370 | ||
83c81bfe | 3371 | htab = hppa_link_hash_table (info); |
74d1c347 | 3372 | local_got_offsets = elf_local_got_offsets (input_bfd); |
30667bf3 AM |
3373 | |
3374 | rel = relocs; | |
3375 | relend = relocs + input_section->reloc_count; | |
3376 | for (; rel < relend; rel++) | |
3377 | { | |
3378 | unsigned int r_type; | |
3379 | reloc_howto_type *howto; | |
3380 | unsigned int r_symndx; | |
3381 | struct elf32_hppa_link_hash_entry *h; | |
3382 | Elf_Internal_Sym *sym; | |
3383 | asection *sym_sec; | |
3384 | bfd_vma relocation; | |
3385 | bfd_reloc_status_type r; | |
3386 | const char *sym_name; | |
b34976b6 AM |
3387 | bfd_boolean plabel; |
3388 | bfd_boolean warned_undef; | |
30667bf3 AM |
3389 | |
3390 | r_type = ELF32_R_TYPE (rel->r_info); | |
3391 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
3392 | { | |
3393 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3394 | return FALSE; |
30667bf3 AM |
3395 | } |
3396 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3397 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3398 | continue; | |
3399 | ||
30667bf3 | 3400 | /* This is a final link. */ |
f0fe0e16 | 3401 | r_symndx = ELF32_R_SYM (rel->r_info); |
30667bf3 AM |
3402 | h = NULL; |
3403 | sym = NULL; | |
3404 | sym_sec = NULL; | |
b34976b6 | 3405 | warned_undef = FALSE; |
30667bf3 AM |
3406 | if (r_symndx < symtab_hdr->sh_info) |
3407 | { | |
3408 | /* This is a local symbol, h defaults to NULL. */ | |
3409 | sym = local_syms + r_symndx; | |
3410 | sym_sec = local_sections[r_symndx]; | |
f8df10f4 | 3411 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, sym_sec, rel); |
30667bf3 AM |
3412 | } |
3413 | else | |
3414 | { | |
560e09e9 NC |
3415 | struct elf_link_hash_entry *hh; |
3416 | bfd_boolean unresolved_reloc; | |
3417 | ||
3418 | RELOC_FOR_GLOBAL_SYMBOL (hh, elf_sym_hashes (input_bfd), r_symndx, symtab_hdr, | |
3419 | relocation, sym_sec, unresolved_reloc, info, | |
3420 | warned_undef); | |
3421 | ||
3422 | if (relocation == 0 | |
3423 | && hh->root.type != bfd_link_hash_defined | |
3424 | && hh->root.type != bfd_link_hash_defweak | |
3425 | && hh->root.type != bfd_link_hash_undefweak) | |
3426 | { | |
3427 | if (!info->executable | |
3428 | && info->unresolved_syms_in_objects == RM_IGNORE | |
3429 | && ELF_ST_VISIBILITY (hh->other) == STV_DEFAULT | |
3430 | && hh->type == STT_PARISC_MILLI) | |
3431 | { | |
3432 | if (! info->callbacks->undefined_symbol | |
3433 | (info, hh->root.root.string, input_bfd, | |
3434 | input_section, rel->r_offset, | |
3435 | ((info->shared && info->unresolved_syms_in_shared_libs == RM_GENERATE_ERROR) | |
3436 | || (!info->shared && info->unresolved_syms_in_objects == RM_GENERATE_ERROR)))) | |
3437 | return FALSE; | |
3438 | warned_undef = TRUE; | |
3439 | } | |
30667bf3 | 3440 | } |
560e09e9 | 3441 | h = (struct elf32_hppa_link_hash_entry *) hh; |
30667bf3 AM |
3442 | } |
3443 | ||
3444 | /* Do any required modifications to the relocation value, and | |
25f72752 AM |
3445 | determine what types of dynamic info we need to output, if |
3446 | any. */ | |
74d1c347 | 3447 | plabel = 0; |
30667bf3 AM |
3448 | switch (r_type) |
3449 | { | |
3450 | case R_PARISC_DLTIND14F: | |
3451 | case R_PARISC_DLTIND14R: | |
3452 | case R_PARISC_DLTIND21L: | |
ce757d15 AM |
3453 | { |
3454 | bfd_vma off; | |
b34976b6 | 3455 | bfd_boolean do_got = 0; |
ce757d15 AM |
3456 | |
3457 | /* Relocation is to the entry for this symbol in the | |
3458 | global offset table. */ | |
3459 | if (h != NULL) | |
3460 | { | |
b34976b6 | 3461 | bfd_boolean dyn; |
ce757d15 AM |
3462 | |
3463 | off = h->elf.got.offset; | |
3464 | dyn = htab->elf.dynamic_sections_created; | |
3465 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info, &h->elf)) | |
3466 | { | |
3467 | /* If we aren't going to call finish_dynamic_symbol, | |
3468 | then we need to handle initialisation of the .got | |
3469 | entry and create needed relocs here. Since the | |
3470 | offset must always be a multiple of 4, we use the | |
3471 | least significant bit to record whether we have | |
3472 | initialised it already. */ | |
3473 | if ((off & 1) != 0) | |
3474 | off &= ~1; | |
3475 | else | |
3476 | { | |
3477 | h->elf.got.offset |= 1; | |
3478 | do_got = 1; | |
3479 | } | |
3480 | } | |
3481 | } | |
3482 | else | |
3483 | { | |
3484 | /* Local symbol case. */ | |
3485 | if (local_got_offsets == NULL) | |
3486 | abort (); | |
3487 | ||
3488 | off = local_got_offsets[r_symndx]; | |
3489 | ||
3490 | /* The offset must always be a multiple of 4. We use | |
3491 | the least significant bit to record whether we have | |
3492 | already generated the necessary reloc. */ | |
3493 | if ((off & 1) != 0) | |
3494 | off &= ~1; | |
3495 | else | |
3496 | { | |
3497 | local_got_offsets[r_symndx] |= 1; | |
3498 | do_got = 1; | |
3499 | } | |
3500 | } | |
68fb2e56 | 3501 | |
ce757d15 AM |
3502 | if (do_got) |
3503 | { | |
3504 | if (info->shared) | |
3505 | { | |
3506 | /* Output a dynamic relocation for this GOT entry. | |
3507 | In this case it is relative to the base of the | |
3508 | object because the symbol index is zero. */ | |
3509 | Elf_Internal_Rela outrel; | |
947216bf AM |
3510 | bfd_byte *loc; |
3511 | asection *s = htab->srelgot; | |
ce757d15 AM |
3512 | |
3513 | outrel.r_offset = (off | |
3514 | + htab->sgot->output_offset | |
3515 | + htab->sgot->output_section->vma); | |
3516 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); | |
3517 | outrel.r_addend = relocation; | |
947216bf AM |
3518 | loc = s->contents; |
3519 | loc += s->reloc_count++ * sizeof (Elf32_External_Rela); | |
ce757d15 AM |
3520 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
3521 | } | |
3522 | else | |
30667bf3 | 3523 | bfd_put_32 (output_bfd, relocation, |
83c81bfe | 3524 | htab->sgot->contents + off); |
ce757d15 | 3525 | } |
30667bf3 | 3526 | |
ce757d15 AM |
3527 | if (off >= (bfd_vma) -2) |
3528 | abort (); | |
30667bf3 | 3529 | |
ce757d15 AM |
3530 | /* Add the base of the GOT to the relocation value. */ |
3531 | relocation = (off | |
3532 | + htab->sgot->output_offset | |
3533 | + htab->sgot->output_section->vma); | |
3534 | } | |
30667bf3 | 3535 | break; |
252b5132 | 3536 | |
c46b7515 AM |
3537 | case R_PARISC_SEGREL32: |
3538 | /* If this is the first SEGREL relocation, then initialize | |
3539 | the segment base values. */ | |
83c81bfe AM |
3540 | if (htab->text_segment_base == (bfd_vma) -1) |
3541 | bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); | |
c46b7515 AM |
3542 | break; |
3543 | ||
30667bf3 AM |
3544 | case R_PARISC_PLABEL14R: |
3545 | case R_PARISC_PLABEL21L: | |
3546 | case R_PARISC_PLABEL32: | |
ebe50bae | 3547 | if (htab->elf.dynamic_sections_created) |
252b5132 | 3548 | { |
ce757d15 | 3549 | bfd_vma off; |
b34976b6 | 3550 | bfd_boolean do_plt = 0; |
ce757d15 | 3551 | |
74d1c347 AM |
3552 | /* If we have a global symbol with a PLT slot, then |
3553 | redirect this relocation to it. */ | |
3554 | if (h != NULL) | |
3555 | { | |
3556 | off = h->elf.plt.offset; | |
4dc86686 | 3557 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info, &h->elf)) |
8dea1268 AM |
3558 | { |
3559 | /* In a non-shared link, adjust_dynamic_symbols | |
3560 | isn't called for symbols forced local. We | |
dc810e39 | 3561 | need to write out the plt entry here. */ |
8dea1268 AM |
3562 | if ((off & 1) != 0) |
3563 | off &= ~1; | |
3564 | else | |
3565 | { | |
8dea1268 | 3566 | h->elf.plt.offset |= 1; |
ce757d15 | 3567 | do_plt = 1; |
8dea1268 AM |
3568 | } |
3569 | } | |
74d1c347 AM |
3570 | } |
3571 | else | |
3572 | { | |
68fb2e56 AM |
3573 | bfd_vma *local_plt_offsets; |
3574 | ||
3575 | if (local_got_offsets == NULL) | |
3576 | abort (); | |
74d1c347 | 3577 | |
68fb2e56 AM |
3578 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3579 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3580 | |
3581 | /* As for the local .got entry case, we use the last | |
3582 | bit to record whether we've already initialised | |
3583 | this local .plt entry. */ | |
3584 | if ((off & 1) != 0) | |
3585 | off &= ~1; | |
ce757d15 AM |
3586 | else |
3587 | { | |
3588 | local_plt_offsets[r_symndx] |= 1; | |
3589 | do_plt = 1; | |
3590 | } | |
3591 | } | |
3592 | ||
3593 | if (do_plt) | |
3594 | { | |
3595 | if (info->shared) | |
3596 | { | |
3597 | /* Output a dynamic IPLT relocation for this | |
3598 | PLT entry. */ | |
3599 | Elf_Internal_Rela outrel; | |
947216bf AM |
3600 | bfd_byte *loc; |
3601 | asection *s = htab->srelplt; | |
ce757d15 AM |
3602 | |
3603 | outrel.r_offset = (off | |
3604 | + htab->splt->output_offset | |
3605 | + htab->splt->output_section->vma); | |
3606 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3607 | outrel.r_addend = relocation; | |
947216bf AM |
3608 | loc = s->contents; |
3609 | loc += s->reloc_count++ * sizeof (Elf32_External_Rela); | |
ce757d15 AM |
3610 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
3611 | } | |
74d1c347 AM |
3612 | else |
3613 | { | |
3614 | bfd_put_32 (output_bfd, | |
3615 | relocation, | |
83c81bfe | 3616 | htab->splt->contents + off); |
74d1c347 | 3617 | bfd_put_32 (output_bfd, |
83c81bfe AM |
3618 | elf_gp (htab->splt->output_section->owner), |
3619 | htab->splt->contents + off + 4); | |
74d1c347 AM |
3620 | } |
3621 | } | |
3622 | ||
68fb2e56 | 3623 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3624 | abort (); |
74d1c347 AM |
3625 | |
3626 | /* PLABELs contain function pointers. Relocation is to | |
3627 | the entry for the function in the .plt. The magic +2 | |
3628 | offset signals to $$dyncall that the function pointer | |
3629 | is in the .plt and thus has a gp pointer too. | |
3630 | Exception: Undefined PLABELs should have a value of | |
3631 | zero. */ | |
3632 | if (h == NULL | |
3633 | || (h->elf.root.type != bfd_link_hash_undefweak | |
3634 | && h->elf.root.type != bfd_link_hash_undefined)) | |
3635 | { | |
3636 | relocation = (off | |
83c81bfe AM |
3637 | + htab->splt->output_offset |
3638 | + htab->splt->output_section->vma | |
74d1c347 AM |
3639 | + 2); |
3640 | } | |
3641 | plabel = 1; | |
30667bf3 AM |
3642 | } |
3643 | /* Fall through and possibly emit a dynamic relocation. */ | |
3644 | ||
3645 | case R_PARISC_DIR17F: | |
3646 | case R_PARISC_DIR17R: | |
47d89dba | 3647 | case R_PARISC_DIR14F: |
30667bf3 AM |
3648 | case R_PARISC_DIR14R: |
3649 | case R_PARISC_DIR21L: | |
3650 | case R_PARISC_DPREL14F: | |
3651 | case R_PARISC_DPREL14R: | |
3652 | case R_PARISC_DPREL21L: | |
3653 | case R_PARISC_DIR32: | |
ec338859 AM |
3654 | /* r_symndx will be zero only for relocs against symbols |
3655 | from removed linkonce sections, or sections discarded by | |
3656 | a linker script. */ | |
3657 | if (r_symndx == 0 | |
3658 | || (input_section->flags & SEC_ALLOC) == 0) | |
3659 | break; | |
3660 | ||
30667bf3 | 3661 | /* The reloc types handled here and this conditional |
56882138 | 3662 | expression must match the code in ..check_relocs and |
ec338859 | 3663 | allocate_dynrelocs. ie. We need exactly the same condition |
56882138 AM |
3664 | as in ..check_relocs, with some extra conditions (dynindx |
3665 | test in this case) to cater for relocs removed by | |
ec338859 | 3666 | allocate_dynrelocs. If you squint, the non-shared test |
56882138 AM |
3667 | here does indeed match the one in ..check_relocs, the |
3668 | difference being that here we test DEF_DYNAMIC as well as | |
3669 | !DEF_REGULAR. All common syms end up with !DEF_REGULAR, | |
3670 | which is why we can't use just that test here. | |
3671 | Conversely, DEF_DYNAMIC can't be used in check_relocs as | |
3672 | there all files have not been loaded. */ | |
446f2863 | 3673 | if ((info->shared |
446f2863 AM |
3674 | && (IS_ABSOLUTE_RELOC (r_type) |
3675 | || (h != NULL | |
3676 | && h->elf.dynindx != -1 | |
3677 | && (!info->symbolic | |
3678 | || (h->elf.elf_link_hash_flags | |
3679 | & ELF_LINK_HASH_DEF_REGULAR) == 0)))) | |
3680 | || (!info->shared | |
446f2863 AM |
3681 | && h != NULL |
3682 | && h->elf.dynindx != -1 | |
3683 | && (h->elf.elf_link_hash_flags & ELF_LINK_NON_GOT_REF) == 0 | |
56882138 AM |
3684 | && (((h->elf.elf_link_hash_flags |
3685 | & ELF_LINK_HASH_DEF_DYNAMIC) != 0 | |
3686 | && (h->elf.elf_link_hash_flags | |
3687 | & ELF_LINK_HASH_DEF_REGULAR) == 0) | |
446f2863 AM |
3688 | || h->elf.root.type == bfd_link_hash_undefweak |
3689 | || h->elf.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
3690 | { |
3691 | Elf_Internal_Rela outrel; | |
b34976b6 | 3692 | bfd_boolean skip; |
98ceb8ce | 3693 | asection *sreloc; |
947216bf | 3694 | bfd_byte *loc; |
252b5132 | 3695 | |
30667bf3 AM |
3696 | /* When generating a shared object, these relocations |
3697 | are copied into the output file to be resolved at run | |
3698 | time. */ | |
252b5132 | 3699 | |
30667bf3 | 3700 | outrel.r_addend = rel->r_addend; |
c629eae0 JJ |
3701 | outrel.r_offset = |
3702 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
3703 | rel->r_offset); | |
0bb2d96a JJ |
3704 | skip = (outrel.r_offset == (bfd_vma) -1 |
3705 | || outrel.r_offset == (bfd_vma) -2); | |
30667bf3 AM |
3706 | outrel.r_offset += (input_section->output_offset |
3707 | + input_section->output_section->vma); | |
3708 | ||
3709 | if (skip) | |
252b5132 | 3710 | { |
30667bf3 | 3711 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 3712 | } |
74d1c347 AM |
3713 | else if (h != NULL |
3714 | && h->elf.dynindx != -1 | |
3715 | && (plabel | |
446f2863 AM |
3716 | || !IS_ABSOLUTE_RELOC (r_type) |
3717 | || !info->shared | |
74d1c347 | 3718 | || !info->symbolic |
30667bf3 AM |
3719 | || (h->elf.elf_link_hash_flags |
3720 | & ELF_LINK_HASH_DEF_REGULAR) == 0)) | |
252b5132 | 3721 | { |
30667bf3 AM |
3722 | outrel.r_info = ELF32_R_INFO (h->elf.dynindx, r_type); |
3723 | } | |
3724 | else /* It's a local symbol, or one marked to become local. */ | |
3725 | { | |
3726 | int indx = 0; | |
edd21aca | 3727 | |
30667bf3 AM |
3728 | /* Add the absolute offset of the symbol. */ |
3729 | outrel.r_addend += relocation; | |
edd21aca | 3730 | |
74d1c347 AM |
3731 | /* Global plabels need to be processed by the |
3732 | dynamic linker so that functions have at most one | |
3733 | fptr. For this reason, we need to differentiate | |
3734 | between global and local plabels, which we do by | |
3735 | providing the function symbol for a global plabel | |
3736 | reloc, and no symbol for local plabels. */ | |
3737 | if (! plabel | |
3738 | && sym_sec != NULL | |
30667bf3 AM |
3739 | && sym_sec->output_section != NULL |
3740 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 3741 | { |
30667bf3 AM |
3742 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
3743 | /* We are turning this relocation into one | |
3744 | against a section symbol, so subtract out the | |
3745 | output section's address but not the offset | |
3746 | of the input section in the output section. */ | |
3747 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 3748 | } |
252b5132 | 3749 | |
30667bf3 AM |
3750 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
3751 | } | |
68fb2e56 AM |
3752 | #if 0 |
3753 | /* EH info can cause unaligned DIR32 relocs. | |
3754 | Tweak the reloc type for the dynamic linker. */ | |
3755 | if (r_type == R_PARISC_DIR32 && (outrel.r_offset & 3) != 0) | |
3756 | outrel.r_info = ELF32_R_INFO (ELF32_R_SYM (outrel.r_info), | |
3757 | R_PARISC_DIR32U); | |
3758 | #endif | |
98ceb8ce AM |
3759 | sreloc = elf_section_data (input_section)->sreloc; |
3760 | if (sreloc == NULL) | |
3761 | abort (); | |
3762 | ||
947216bf AM |
3763 | loc = sreloc->contents; |
3764 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
98ceb8ce | 3765 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
30667bf3 AM |
3766 | } |
3767 | break; | |
edd21aca | 3768 | |
30667bf3 AM |
3769 | default: |
3770 | break; | |
3771 | } | |
252b5132 | 3772 | |
30667bf3 | 3773 | r = final_link_relocate (input_section, contents, rel, relocation, |
a252afa4 | 3774 | htab, sym_sec, h, info); |
252b5132 | 3775 | |
30667bf3 AM |
3776 | if (r == bfd_reloc_ok) |
3777 | continue; | |
252b5132 | 3778 | |
30667bf3 AM |
3779 | if (h != NULL) |
3780 | sym_name = h->elf.root.root.string; | |
3781 | else | |
3782 | { | |
3783 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
3784 | symtab_hdr->sh_link, | |
3785 | sym->st_name); | |
3786 | if (sym_name == NULL) | |
b34976b6 | 3787 | return FALSE; |
30667bf3 AM |
3788 | if (*sym_name == '\0') |
3789 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
3790 | } | |
edd21aca | 3791 | |
30667bf3 | 3792 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 3793 | |
30667bf3 AM |
3794 | if (r == bfd_reloc_undefined || r == bfd_reloc_notsupported) |
3795 | { | |
f09ebc7d AM |
3796 | if (r == bfd_reloc_notsupported || !warned_undef) |
3797 | { | |
3798 | (*_bfd_error_handler) | |
3799 | (_("%s(%s+0x%lx): cannot handle %s for %s"), | |
3800 | bfd_archive_filename (input_bfd), | |
3801 | input_section->name, | |
3802 | (long) rel->r_offset, | |
3803 | howto->name, | |
3804 | sym_name); | |
3805 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3806 | return FALSE; |
f09ebc7d | 3807 | } |
30667bf3 AM |
3808 | } |
3809 | else | |
3810 | { | |
3811 | if (!((*info->callbacks->reloc_overflow) | |
c39a58e6 AM |
3812 | (info, sym_name, howto->name, 0, input_bfd, input_section, |
3813 | rel->r_offset))) | |
b34976b6 | 3814 | return FALSE; |
30667bf3 AM |
3815 | } |
3816 | } | |
edd21aca | 3817 | |
b34976b6 | 3818 | return TRUE; |
30667bf3 | 3819 | } |
252b5132 | 3820 | |
30667bf3 AM |
3821 | /* Finish up dynamic symbol handling. We set the contents of various |
3822 | dynamic sections here. */ | |
252b5132 | 3823 | |
b34976b6 | 3824 | static bfd_boolean |
c39a58e6 AM |
3825 | elf32_hppa_finish_dynamic_symbol (bfd *output_bfd, |
3826 | struct bfd_link_info *info, | |
3827 | struct elf_link_hash_entry *h, | |
3828 | Elf_Internal_Sym *sym) | |
30667bf3 | 3829 | { |
83c81bfe | 3830 | struct elf32_hppa_link_hash_table *htab; |
a252afa4 DA |
3831 | Elf_Internal_Rela rel; |
3832 | bfd_byte *loc; | |
edd21aca | 3833 | |
83c81bfe | 3834 | htab = hppa_link_hash_table (info); |
30667bf3 | 3835 | |
30667bf3 AM |
3836 | if (h->plt.offset != (bfd_vma) -1) |
3837 | { | |
3838 | bfd_vma value; | |
30667bf3 | 3839 | |
8dea1268 AM |
3840 | if (h->plt.offset & 1) |
3841 | abort (); | |
3842 | ||
30667bf3 AM |
3843 | /* This symbol has an entry in the procedure linkage table. Set |
3844 | it up. | |
3845 | ||
3846 | The format of a plt entry is | |
74d1c347 AM |
3847 | <funcaddr> |
3848 | <__gp> | |
47d89dba | 3849 | */ |
30667bf3 AM |
3850 | value = 0; |
3851 | if (h->root.type == bfd_link_hash_defined | |
3852 | || h->root.type == bfd_link_hash_defweak) | |
3853 | { | |
3854 | value = h->root.u.def.value; | |
3855 | if (h->root.u.def.section->output_section != NULL) | |
3856 | value += (h->root.u.def.section->output_offset | |
3857 | + h->root.u.def.section->output_section->vma); | |
252b5132 | 3858 | } |
edd21aca | 3859 | |
a252afa4 DA |
3860 | /* Create a dynamic IPLT relocation for this entry. */ |
3861 | rel.r_offset = (h->plt.offset | |
3862 | + htab->splt->output_offset | |
3863 | + htab->splt->output_section->vma); | |
3864 | if (h->dynindx != -1) | |
30667bf3 | 3865 | { |
a252afa4 DA |
3866 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_IPLT); |
3867 | rel.r_addend = 0; | |
30667bf3 | 3868 | } |
ce757d15 | 3869 | else |
47d89dba | 3870 | { |
a252afa4 DA |
3871 | /* This symbol has been marked to become local, and is |
3872 | used by a plabel so must be kept in the .plt. */ | |
3873 | rel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3874 | rel.r_addend = value; | |
47d89dba AM |
3875 | } |
3876 | ||
a252afa4 DA |
3877 | loc = htab->srelplt->contents; |
3878 | loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela); | |
3879 | bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rel, loc); | |
3880 | ||
30667bf3 AM |
3881 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0) |
3882 | { | |
3883 | /* Mark the symbol as undefined, rather than as defined in | |
3884 | the .plt section. Leave the value alone. */ | |
3885 | sym->st_shndx = SHN_UNDEF; | |
3886 | } | |
3887 | } | |
edd21aca | 3888 | |
30667bf3 AM |
3889 | if (h->got.offset != (bfd_vma) -1) |
3890 | { | |
30667bf3 AM |
3891 | /* This symbol has an entry in the global offset table. Set it |
3892 | up. */ | |
3893 | ||
3894 | rel.r_offset = ((h->got.offset &~ (bfd_vma) 1) | |
83c81bfe AM |
3895 | + htab->sgot->output_offset |
3896 | + htab->sgot->output_section->vma); | |
30667bf3 | 3897 | |
4dc86686 AM |
3898 | /* If this is a -Bsymbolic link and the symbol is defined |
3899 | locally or was forced to be local because of a version file, | |
3900 | we just want to emit a RELATIVE reloc. The entry in the | |
3901 | global offset table will already have been initialized in the | |
3902 | relocate_section function. */ | |
3903 | if (info->shared | |
3904 | && (info->symbolic || h->dynindx == -1) | |
3905 | && (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)) | |
30667bf3 | 3906 | { |
74d1c347 | 3907 | rel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
30667bf3 AM |
3908 | rel.r_addend = (h->root.u.def.value |
3909 | + h->root.u.def.section->output_offset | |
3910 | + h->root.u.def.section->output_section->vma); | |
3911 | } | |
3912 | else | |
3913 | { | |
49e9d0d3 AM |
3914 | if ((h->got.offset & 1) != 0) |
3915 | abort (); | |
c39a58e6 | 3916 | bfd_put_32 (output_bfd, 0, htab->sgot->contents + h->got.offset); |
30667bf3 AM |
3917 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_DIR32); |
3918 | rel.r_addend = 0; | |
3919 | } | |
edd21aca | 3920 | |
947216bf AM |
3921 | loc = htab->srelgot->contents; |
3922 | loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
3ac8354b | 3923 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); |
30667bf3 | 3924 | } |
edd21aca | 3925 | |
30667bf3 AM |
3926 | if ((h->elf_link_hash_flags & ELF_LINK_HASH_NEEDS_COPY) != 0) |
3927 | { | |
3928 | asection *s; | |
30667bf3 AM |
3929 | |
3930 | /* This symbol needs a copy reloc. Set it up. */ | |
3931 | ||
49e9d0d3 AM |
3932 | if (! (h->dynindx != -1 |
3933 | && (h->root.type == bfd_link_hash_defined | |
3934 | || h->root.type == bfd_link_hash_defweak))) | |
3935 | abort (); | |
30667bf3 | 3936 | |
83c81bfe | 3937 | s = htab->srelbss; |
30667bf3 AM |
3938 | |
3939 | rel.r_offset = (h->root.u.def.value | |
3940 | + h->root.u.def.section->output_offset | |
3941 | + h->root.u.def.section->output_section->vma); | |
3942 | rel.r_addend = 0; | |
3943 | rel.r_info = ELF32_R_INFO (h->dynindx, R_PARISC_COPY); | |
947216bf | 3944 | loc = s->contents + s->reloc_count++ * sizeof (Elf32_External_Rela); |
3ac8354b | 3945 | bfd_elf32_swap_reloca_out (output_bfd, &rel, loc); |
30667bf3 AM |
3946 | } |
3947 | ||
3948 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
3949 | if (h->root.root.string[0] == '_' | |
3950 | && (strcmp (h->root.root.string, "_DYNAMIC") == 0 | |
3951 | || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)) | |
3952 | { | |
3953 | sym->st_shndx = SHN_ABS; | |
3954 | } | |
3955 | ||
b34976b6 | 3956 | return TRUE; |
30667bf3 AM |
3957 | } |
3958 | ||
98ceb8ce AM |
3959 | /* Used to decide how to sort relocs in an optimal manner for the |
3960 | dynamic linker, before writing them out. */ | |
3961 | ||
3962 | static enum elf_reloc_type_class | |
c39a58e6 | 3963 | elf32_hppa_reloc_type_class (const Elf_Internal_Rela *rela) |
98ceb8ce AM |
3964 | { |
3965 | if (ELF32_R_SYM (rela->r_info) == 0) | |
3966 | return reloc_class_relative; | |
3967 | ||
3968 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
3969 | { | |
3970 | case R_PARISC_IPLT: | |
3971 | return reloc_class_plt; | |
3972 | case R_PARISC_COPY: | |
3973 | return reloc_class_copy; | |
3974 | default: | |
3975 | return reloc_class_normal; | |
3976 | } | |
3977 | } | |
3978 | ||
30667bf3 AM |
3979 | /* Finish up the dynamic sections. */ |
3980 | ||
b34976b6 | 3981 | static bfd_boolean |
c39a58e6 AM |
3982 | elf32_hppa_finish_dynamic_sections (bfd *output_bfd, |
3983 | struct bfd_link_info *info) | |
30667bf3 AM |
3984 | { |
3985 | bfd *dynobj; | |
83c81bfe | 3986 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
3987 | asection *sdyn; |
3988 | ||
83c81bfe | 3989 | htab = hppa_link_hash_table (info); |
ebe50bae | 3990 | dynobj = htab->elf.dynobj; |
30667bf3 AM |
3991 | |
3992 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
3993 | ||
ebe50bae | 3994 | if (htab->elf.dynamic_sections_created) |
30667bf3 AM |
3995 | { |
3996 | Elf32_External_Dyn *dyncon, *dynconend; | |
3997 | ||
49e9d0d3 AM |
3998 | if (sdyn == NULL) |
3999 | abort (); | |
30667bf3 AM |
4000 | |
4001 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
4002 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->_raw_size); | |
4003 | for (; dyncon < dynconend; dyncon++) | |
edd21aca | 4004 | { |
30667bf3 AM |
4005 | Elf_Internal_Dyn dyn; |
4006 | asection *s; | |
4007 | ||
4008 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4009 | ||
4010 | switch (dyn.d_tag) | |
4011 | { | |
4012 | default: | |
3ac8354b | 4013 | continue; |
30667bf3 AM |
4014 | |
4015 | case DT_PLTGOT: | |
4016 | /* Use PLTGOT to set the GOT register. */ | |
4017 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
30667bf3 AM |
4018 | break; |
4019 | ||
4020 | case DT_JMPREL: | |
83c81bfe | 4021 | s = htab->srelplt; |
30667bf3 | 4022 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
30667bf3 AM |
4023 | break; |
4024 | ||
4025 | case DT_PLTRELSZ: | |
83c81bfe | 4026 | s = htab->srelplt; |
6348e046 | 4027 | dyn.d_un.d_val = s->_raw_size; |
30667bf3 | 4028 | break; |
4e12ff7f AM |
4029 | |
4030 | case DT_RELASZ: | |
4031 | /* Don't count procedure linkage table relocs in the | |
4032 | overall reloc count. */ | |
6348e046 AM |
4033 | s = htab->srelplt; |
4034 | if (s == NULL) | |
4035 | continue; | |
4036 | dyn.d_un.d_val -= s->_raw_size; | |
4037 | break; | |
4038 | ||
4039 | case DT_RELA: | |
4040 | /* We may not be using the standard ELF linker script. | |
4041 | If .rela.plt is the first .rela section, we adjust | |
4042 | DT_RELA to not include it. */ | |
4043 | s = htab->srelplt; | |
4044 | if (s == NULL) | |
4045 | continue; | |
4046 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
4047 | continue; | |
4048 | dyn.d_un.d_ptr += s->_raw_size; | |
4e12ff7f | 4049 | break; |
30667bf3 | 4050 | } |
3ac8354b AM |
4051 | |
4052 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
edd21aca | 4053 | } |
252b5132 | 4054 | } |
edd21aca | 4055 | |
83c81bfe | 4056 | if (htab->sgot != NULL && htab->sgot->_raw_size != 0) |
30667bf3 | 4057 | { |
74d1c347 AM |
4058 | /* Fill in the first entry in the global offset table. |
4059 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 | 4060 | bfd_put_32 (output_bfd, |
c39a58e6 | 4061 | sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0, |
83c81bfe | 4062 | htab->sgot->contents); |
30667bf3 | 4063 | |
74d1c347 | 4064 | /* The second entry is reserved for use by the dynamic linker. */ |
83c81bfe | 4065 | memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4066 | |
30667bf3 | 4067 | /* Set .got entry size. */ |
83c81bfe | 4068 | elf_section_data (htab->sgot->output_section) |
74d1c347 | 4069 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; |
30667bf3 AM |
4070 | } |
4071 | ||
83c81bfe | 4072 | if (htab->splt != NULL && htab->splt->_raw_size != 0) |
47d89dba AM |
4073 | { |
4074 | /* Set plt entry size. */ | |
83c81bfe | 4075 | elf_section_data (htab->splt->output_section) |
47d89dba AM |
4076 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; |
4077 | ||
83c81bfe | 4078 | if (htab->need_plt_stub) |
47d89dba AM |
4079 | { |
4080 | /* Set up the .plt stub. */ | |
83c81bfe AM |
4081 | memcpy (htab->splt->contents |
4082 | + htab->splt->_raw_size - sizeof (plt_stub), | |
47d89dba AM |
4083 | plt_stub, sizeof (plt_stub)); |
4084 | ||
83c81bfe AM |
4085 | if ((htab->splt->output_offset |
4086 | + htab->splt->output_section->vma | |
4087 | + htab->splt->_raw_size) | |
4088 | != (htab->sgot->output_offset | |
4089 | + htab->sgot->output_section->vma)) | |
47d89dba AM |
4090 | { |
4091 | (*_bfd_error_handler) | |
4092 | (_(".got section not immediately after .plt section")); | |
b34976b6 | 4093 | return FALSE; |
47d89dba AM |
4094 | } |
4095 | } | |
4096 | } | |
30667bf3 | 4097 | |
b34976b6 | 4098 | return TRUE; |
30667bf3 | 4099 | } |
252b5132 | 4100 | |
d952f17a AM |
4101 | /* Tweak the OSABI field of the elf header. */ |
4102 | ||
4103 | static void | |
c39a58e6 AM |
4104 | elf32_hppa_post_process_headers (bfd *abfd, |
4105 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
d952f17a AM |
4106 | { |
4107 | Elf_Internal_Ehdr * i_ehdrp; | |
4108 | ||
4109 | i_ehdrp = elf_elfheader (abfd); | |
4110 | ||
4111 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
4112 | { | |
4113 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
4114 | } | |
4115 | else | |
4116 | { | |
4117 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; | |
4118 | } | |
4119 | } | |
4120 | ||
30667bf3 AM |
4121 | /* Called when writing out an object file to decide the type of a |
4122 | symbol. */ | |
4123 | static int | |
c39a58e6 | 4124 | elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type) |
30667bf3 AM |
4125 | { |
4126 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4127 | return STT_PARISC_MILLI; | |
4128 | else | |
4129 | return type; | |
252b5132 RH |
4130 | } |
4131 | ||
4132 | /* Misc BFD support code. */ | |
30667bf3 AM |
4133 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4134 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4135 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4136 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4137 | |
252b5132 | 4138 | /* Stuff for the BFD linker. */ |
c46b7515 | 4139 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 | 4140 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
e2d34d7d | 4141 | #define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free |
30667bf3 | 4142 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol |
ebe50bae | 4143 | #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol |
30667bf3 AM |
4144 | #define elf_backend_check_relocs elf32_hppa_check_relocs |
4145 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4146 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4147 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4148 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4149 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4150 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4151 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4152 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4153 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
4154 | #define elf_backend_object_p elf32_hppa_object_p | |
4155 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d952f17a | 4156 | #define elf_backend_post_process_headers elf32_hppa_post_process_headers |
30667bf3 | 4157 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
98ceb8ce | 4158 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
30667bf3 AM |
4159 | |
4160 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4161 | #define elf_backend_can_refcount 1 |
30667bf3 AM |
4162 | #define elf_backend_plt_alignment 2 |
4163 | #define elf_backend_want_got_plt 0 | |
4164 | #define elf_backend_plt_readonly 0 | |
4165 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4166 | #define elf_backend_got_header_size 8 |
f0fe0e16 | 4167 | #define elf_backend_rela_normal 1 |
252b5132 RH |
4168 | |
4169 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4170 | #define TARGET_BIG_NAME "elf32-hppa" | |
4171 | #define ELF_ARCH bfd_arch_hppa | |
4172 | #define ELF_MACHINE_CODE EM_PARISC | |
4173 | #define ELF_MAXPAGESIZE 0x1000 | |
4174 | ||
4175 | #include "elf32-target.h" | |
d952f17a AM |
4176 | |
4177 | #undef TARGET_BIG_SYM | |
4178 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec | |
4179 | #undef TARGET_BIG_NAME | |
4180 | #define TARGET_BIG_NAME "elf32-hppa-linux" | |
4181 | ||
4182 | #define INCLUDED_TARGET_FILE 1 | |
4183 | #include "elf32-target.h" |