Commit | Line | Data |
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252b5132 | 1 | /* BFD back-end for HP PA-RISC ELF files. |
e5094212 | 2 | Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001, |
22d606e9 | 3 | 2002, 2003, 2004, 2005, 2006 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 | |
3e110533 | 25 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, 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 | 115 | |
875c0872 DA |
116 | |
117 | /* Variable names follow a coding style. | |
118 | Please follow this (Apps Hungarian) style: | |
119 | ||
120 | Structure/Variable Prefix | |
121 | elf_link_hash_table "etab" | |
122 | elf_link_hash_entry "eh" | |
123 | ||
124 | elf32_hppa_link_hash_table "htab" | |
125 | elf32_hppa_link_hash_entry "hh" | |
126 | ||
127 | bfd_hash_table "btab" | |
128 | bfd_hash_entry "bh" | |
129 | ||
130 | bfd_hash_table containing stubs "bstab" | |
131 | elf32_hppa_stub_hash_entry "hsh" | |
132 | ||
133 | elf32_hppa_dyn_reloc_entry "hdh" | |
134 | ||
135 | Always remember to use GNU Coding Style. */ | |
136 | ||
30667bf3 AM |
137 | #define PLT_ENTRY_SIZE 8 |
138 | #define GOT_ENTRY_SIZE 4 | |
139 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
140 | ||
47d89dba AM |
141 | static const bfd_byte plt_stub[] = |
142 | { | |
143 | 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */ | |
144 | 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */ | |
145 | 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */ | |
146 | #define PLT_STUB_ENTRY (3*4) | |
147 | 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */ | |
148 | 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */ | |
149 | 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */ | |
150 | 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */ | |
151 | }; | |
152 | ||
30667bf3 AM |
153 | /* Section name for stubs is the associated section name plus this |
154 | string. */ | |
155 | #define STUB_SUFFIX ".stub" | |
156 | ||
98ceb8ce AM |
157 | /* We don't need to copy certain PC- or GP-relative dynamic relocs |
158 | into a shared object's dynamic section. All the relocs of the | |
159 | limited class we are interested in, are absolute. */ | |
160 | #ifndef RELATIVE_DYNRELOCS | |
161 | #define RELATIVE_DYNRELOCS 0 | |
446f2863 | 162 | #define IS_ABSOLUTE_RELOC(r_type) 1 |
30667bf3 AM |
163 | #endif |
164 | ||
4fc8051d AM |
165 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
166 | copying dynamic variables from a shared lib into an app's dynbss | |
167 | section, and instead use a dynamic relocation to point into the | |
168 | shared lib. */ | |
169 | #define ELIMINATE_COPY_RELOCS 1 | |
170 | ||
30667bf3 AM |
171 | enum elf32_hppa_stub_type { |
172 | hppa_stub_long_branch, | |
173 | hppa_stub_long_branch_shared, | |
174 | hppa_stub_import, | |
175 | hppa_stub_import_shared, | |
176 | hppa_stub_export, | |
177 | hppa_stub_none | |
178 | }; | |
179 | ||
30667bf3 | 180 | struct elf32_hppa_stub_hash_entry { |
252b5132 | 181 | |
edd21aca | 182 | /* Base hash table entry structure. */ |
a63e02c7 | 183 | struct bfd_hash_entry bh_root; |
252b5132 | 184 | |
edd21aca AM |
185 | /* The stub section. */ |
186 | asection *stub_sec; | |
187 | ||
188 | /* Offset within stub_sec of the beginning of this stub. */ | |
30667bf3 | 189 | bfd_vma stub_offset; |
252b5132 RH |
190 | |
191 | /* Given the symbol's value and its section we can determine its final | |
192 | value when building the stubs (so the stub knows where to jump. */ | |
30667bf3 | 193 | bfd_vma target_value; |
252b5132 | 194 | asection *target_section; |
30667bf3 AM |
195 | |
196 | enum elf32_hppa_stub_type stub_type; | |
197 | ||
198 | /* The symbol table entry, if any, that this was derived from. */ | |
a63e02c7 | 199 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 | 200 | |
25f72752 AM |
201 | /* Where this stub is being called from, or, in the case of combined |
202 | stub sections, the first input section in the group. */ | |
203 | asection *id_sec; | |
252b5132 RH |
204 | }; |
205 | ||
30667bf3 AM |
206 | struct elf32_hppa_link_hash_entry { |
207 | ||
a63e02c7 | 208 | struct elf_link_hash_entry eh; |
30667bf3 AM |
209 | |
210 | /* A pointer to the most recently used stub hash entry against this | |
211 | symbol. */ | |
a63e02c7 | 212 | struct elf32_hppa_stub_hash_entry *hsh_cache; |
30667bf3 | 213 | |
30667bf3 AM |
214 | /* Used to count relocations for delayed sizing of relocation |
215 | sections. */ | |
216 | struct elf32_hppa_dyn_reloc_entry { | |
217 | ||
218 | /* Next relocation in the chain. */ | |
a63e02c7 | 219 | struct elf32_hppa_dyn_reloc_entry *hdh_next; |
30667bf3 | 220 | |
98ceb8ce AM |
221 | /* The input section of the reloc. */ |
222 | asection *sec; | |
30667bf3 AM |
223 | |
224 | /* Number of relocs copied in this section. */ | |
225 | bfd_size_type count; | |
98ceb8ce AM |
226 | |
227 | #if RELATIVE_DYNRELOCS | |
228 | /* Number of relative relocs copied for the input section. */ | |
229 | bfd_size_type relative_count; | |
230 | #endif | |
231 | } *dyn_relocs; | |
30667bf3 | 232 | |
74d1c347 AM |
233 | /* Set if this symbol is used by a plabel reloc. */ |
234 | unsigned int plabel:1; | |
30667bf3 AM |
235 | }; |
236 | ||
30667bf3 AM |
237 | struct elf32_hppa_link_hash_table { |
238 | ||
252b5132 | 239 | /* The main hash table. */ |
a63e02c7 | 240 | struct elf_link_hash_table etab; |
252b5132 RH |
241 | |
242 | /* The stub hash table. */ | |
a63e02c7 | 243 | struct bfd_hash_table bstab; |
252b5132 | 244 | |
30667bf3 AM |
245 | /* Linker stub bfd. */ |
246 | bfd *stub_bfd; | |
247 | ||
30667bf3 | 248 | /* Linker call-backs. */ |
c39a58e6 AM |
249 | asection * (*add_stub_section) (const char *, asection *); |
250 | void (*layout_sections_again) (void); | |
30667bf3 | 251 | |
25f72752 AM |
252 | /* Array to keep track of which stub sections have been created, and |
253 | information on stub grouping. */ | |
254 | struct map_stub { | |
255 | /* This is the section to which stubs in the group will be | |
256 | attached. */ | |
257 | asection *link_sec; | |
258 | /* The stub section. */ | |
259 | asection *stub_sec; | |
25f72752 | 260 | } *stub_group; |
30667bf3 | 261 | |
b4655ea9 AM |
262 | /* Assorted information used by elf32_hppa_size_stubs. */ |
263 | unsigned int bfd_count; | |
264 | int top_index; | |
265 | asection **input_list; | |
266 | Elf_Internal_Sym **all_local_syms; | |
267 | ||
30667bf3 AM |
268 | /* Short-cuts to get to dynamic linker sections. */ |
269 | asection *sgot; | |
270 | asection *srelgot; | |
271 | asection *splt; | |
272 | asection *srelplt; | |
273 | asection *sdynbss; | |
274 | asection *srelbss; | |
47d89dba | 275 | |
c46b7515 AM |
276 | /* Used during a final link to store the base of the text and data |
277 | segments so that we can perform SEGREL relocations. */ | |
278 | bfd_vma text_segment_base; | |
279 | bfd_vma data_segment_base; | |
280 | ||
47d89dba AM |
281 | /* Whether we support multiple sub-spaces for shared libs. */ |
282 | unsigned int multi_subspace:1; | |
283 | ||
067fa4a6 | 284 | /* Flags set when various size branches are detected. Used to |
47d89dba AM |
285 | select suitable defaults for the stub group size. */ |
286 | unsigned int has_12bit_branch:1; | |
287 | unsigned int has_17bit_branch:1; | |
067fa4a6 | 288 | unsigned int has_22bit_branch:1; |
47d89dba AM |
289 | |
290 | /* Set if we need a .plt stub to support lazy dynamic linking. */ | |
291 | unsigned int need_plt_stub:1; | |
ec338859 AM |
292 | |
293 | /* Small local sym to section mapping cache. */ | |
294 | struct sym_sec_cache sym_sec; | |
252b5132 RH |
295 | }; |
296 | ||
30667bf3 AM |
297 | /* Various hash macros and functions. */ |
298 | #define hppa_link_hash_table(p) \ | |
edd21aca | 299 | ((struct elf32_hppa_link_hash_table *) ((p)->hash)) |
252b5132 | 300 | |
875c0872 DA |
301 | #define hppa_elf_hash_entry(ent) \ |
302 | ((struct elf32_hppa_link_hash_entry *)(ent)) | |
303 | ||
304 | #define hppa_stub_hash_entry(ent) \ | |
305 | ((struct elf32_hppa_stub_hash_entry *)(ent)) | |
306 | ||
30667bf3 AM |
307 | #define hppa_stub_hash_lookup(table, string, create, copy) \ |
308 | ((struct elf32_hppa_stub_hash_entry *) \ | |
309 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
310 | ||
252b5132 RH |
311 | /* Assorted hash table functions. */ |
312 | ||
313 | /* Initialize an entry in the stub hash table. */ | |
314 | ||
315 | static struct bfd_hash_entry * | |
c39a58e6 AM |
316 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
317 | struct bfd_hash_table *table, | |
318 | const char *string) | |
252b5132 | 319 | { |
252b5132 RH |
320 | /* Allocate the structure if it has not already been allocated by a |
321 | subclass. */ | |
ebe50bae | 322 | if (entry == NULL) |
30667bf3 | 323 | { |
ebe50bae AM |
324 | entry = bfd_hash_allocate (table, |
325 | sizeof (struct elf32_hppa_stub_hash_entry)); | |
326 | if (entry == NULL) | |
327 | return entry; | |
30667bf3 | 328 | } |
252b5132 RH |
329 | |
330 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
331 | entry = bfd_hash_newfunc (entry, table, string); |
332 | if (entry != NULL) | |
252b5132 | 333 | { |
875c0872 | 334 | struct elf32_hppa_stub_hash_entry *hsh; |
ebe50bae | 335 | |
252b5132 | 336 | /* Initialize the local fields. */ |
875c0872 DA |
337 | hsh = hppa_stub_hash_entry (entry); |
338 | hsh->stub_sec = NULL; | |
339 | hsh->stub_offset = 0; | |
340 | hsh->target_value = 0; | |
341 | hsh->target_section = NULL; | |
342 | hsh->stub_type = hppa_stub_long_branch; | |
a63e02c7 | 343 | hsh->hh = NULL; |
875c0872 | 344 | hsh->id_sec = NULL; |
30667bf3 AM |
345 | } |
346 | ||
ebe50bae | 347 | return entry; |
30667bf3 AM |
348 | } |
349 | ||
30667bf3 AM |
350 | /* Initialize an entry in the link hash table. */ |
351 | ||
352 | static struct bfd_hash_entry * | |
c39a58e6 AM |
353 | hppa_link_hash_newfunc (struct bfd_hash_entry *entry, |
354 | struct bfd_hash_table *table, | |
355 | const char *string) | |
30667bf3 | 356 | { |
30667bf3 AM |
357 | /* Allocate the structure if it has not already been allocated by a |
358 | subclass. */ | |
ebe50bae | 359 | if (entry == NULL) |
30667bf3 | 360 | { |
ebe50bae AM |
361 | entry = bfd_hash_allocate (table, |
362 | sizeof (struct elf32_hppa_link_hash_entry)); | |
363 | if (entry == NULL) | |
364 | return entry; | |
30667bf3 AM |
365 | } |
366 | ||
367 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
368 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
369 | if (entry != NULL) | |
30667bf3 | 370 | { |
875c0872 | 371 | struct elf32_hppa_link_hash_entry *hh; |
ebe50bae | 372 | |
30667bf3 | 373 | /* Initialize the local fields. */ |
875c0872 | 374 | hh = hppa_elf_hash_entry (entry); |
a63e02c7 | 375 | hh->hsh_cache = NULL; |
875c0872 DA |
376 | hh->dyn_relocs = NULL; |
377 | hh->plabel = 0; | |
252b5132 RH |
378 | } |
379 | ||
ebe50bae | 380 | return entry; |
252b5132 RH |
381 | } |
382 | ||
252b5132 RH |
383 | /* Create the derived linker hash table. The PA ELF port uses the derived |
384 | hash table to keep information specific to the PA ELF linker (without | |
385 | using static variables). */ | |
386 | ||
387 | static struct bfd_link_hash_table * | |
c39a58e6 | 388 | elf32_hppa_link_hash_table_create (bfd *abfd) |
252b5132 | 389 | { |
875c0872 DA |
390 | struct elf32_hppa_link_hash_table *htab; |
391 | bfd_size_type amt = sizeof (*htab); | |
252b5132 | 392 | |
875c0872 DA |
393 | htab = (struct elf32_hppa_link_hash_table *) bfd_malloc (amt); |
394 | if (htab == NULL) | |
252b5132 | 395 | return NULL; |
edd21aca | 396 | |
66eb6687 AM |
397 | if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc, |
398 | sizeof (struct elf32_hppa_link_hash_entry))) | |
252b5132 | 399 | { |
875c0872 | 400 | free (htab); |
252b5132 RH |
401 | return NULL; |
402 | } | |
edd21aca AM |
403 | |
404 | /* Init the stub hash table too. */ | |
66eb6687 AM |
405 | if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc, |
406 | sizeof (struct elf32_hppa_stub_hash_entry))) | |
edd21aca AM |
407 | return NULL; |
408 | ||
875c0872 DA |
409 | htab->stub_bfd = NULL; |
410 | htab->add_stub_section = NULL; | |
411 | htab->layout_sections_again = NULL; | |
412 | htab->stub_group = NULL; | |
413 | htab->sgot = NULL; | |
414 | htab->srelgot = NULL; | |
415 | htab->splt = NULL; | |
416 | htab->srelplt = NULL; | |
417 | htab->sdynbss = NULL; | |
418 | htab->srelbss = NULL; | |
419 | htab->text_segment_base = (bfd_vma) -1; | |
420 | htab->data_segment_base = (bfd_vma) -1; | |
421 | htab->multi_subspace = 0; | |
422 | htab->has_12bit_branch = 0; | |
423 | htab->has_17bit_branch = 0; | |
424 | htab->has_22bit_branch = 0; | |
425 | htab->need_plt_stub = 0; | |
426 | htab->sym_sec.abfd = NULL; | |
427 | ||
a63e02c7 | 428 | return &htab->etab.root; |
252b5132 RH |
429 | } |
430 | ||
e2d34d7d DJ |
431 | /* Free the derived linker hash table. */ |
432 | ||
433 | static void | |
875c0872 | 434 | elf32_hppa_link_hash_table_free (struct bfd_link_hash_table *btab) |
e2d34d7d | 435 | { |
875c0872 DA |
436 | struct elf32_hppa_link_hash_table *htab |
437 | = (struct elf32_hppa_link_hash_table *) btab; | |
e2d34d7d | 438 | |
a63e02c7 | 439 | bfd_hash_table_free (&htab->bstab); |
875c0872 | 440 | _bfd_generic_link_hash_table_free (btab); |
e2d34d7d DJ |
441 | } |
442 | ||
30667bf3 AM |
443 | /* Build a name for an entry in the stub hash table. */ |
444 | ||
edd21aca | 445 | static char * |
c39a58e6 AM |
446 | hppa_stub_name (const asection *input_section, |
447 | const asection *sym_sec, | |
875c0872 DA |
448 | const struct elf32_hppa_link_hash_entry *hh, |
449 | const Elf_Internal_Rela *rela) | |
edd21aca AM |
450 | { |
451 | char *stub_name; | |
dc810e39 | 452 | bfd_size_type len; |
edd21aca | 453 | |
875c0872 | 454 | if (hh) |
30667bf3 | 455 | { |
a63e02c7 | 456 | len = 8 + 1 + strlen (hh->eh.root.root.string) + 1 + 8 + 1; |
30667bf3 AM |
457 | stub_name = bfd_malloc (len); |
458 | if (stub_name != NULL) | |
459 | { | |
460 | sprintf (stub_name, "%08x_%s+%x", | |
461 | input_section->id & 0xffffffff, | |
a63e02c7 | 462 | hh->eh.root.root.string, |
875c0872 | 463 | (int) rela->r_addend & 0xffffffff); |
30667bf3 AM |
464 | } |
465 | } | |
466 | else | |
edd21aca | 467 | { |
30667bf3 AM |
468 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
469 | stub_name = bfd_malloc (len); | |
470 | if (stub_name != NULL) | |
471 | { | |
472 | sprintf (stub_name, "%08x_%x:%x+%x", | |
473 | input_section->id & 0xffffffff, | |
474 | sym_sec->id & 0xffffffff, | |
875c0872 DA |
475 | (int) ELF32_R_SYM (rela->r_info) & 0xffffffff, |
476 | (int) rela->r_addend & 0xffffffff); | |
30667bf3 | 477 | } |
edd21aca AM |
478 | } |
479 | return stub_name; | |
480 | } | |
252b5132 | 481 | |
30667bf3 AM |
482 | /* Look up an entry in the stub hash. Stub entries are cached because |
483 | creating the stub name takes a bit of time. */ | |
484 | ||
485 | static struct elf32_hppa_stub_hash_entry * | |
c39a58e6 AM |
486 | hppa_get_stub_entry (const asection *input_section, |
487 | const asection *sym_sec, | |
875c0872 DA |
488 | struct elf32_hppa_link_hash_entry *hh, |
489 | const Elf_Internal_Rela *rela, | |
c39a58e6 | 490 | struct elf32_hppa_link_hash_table *htab) |
252b5132 | 491 | { |
a63e02c7 | 492 | struct elf32_hppa_stub_hash_entry *hsh_entry; |
25f72752 AM |
493 | const asection *id_sec; |
494 | ||
495 | /* If this input section is part of a group of sections sharing one | |
496 | stub section, then use the id of the first section in the group. | |
497 | Stub names need to include a section id, as there may well be | |
498 | more than one stub used to reach say, printf, and we need to | |
499 | distinguish between them. */ | |
83c81bfe | 500 | id_sec = htab->stub_group[input_section->id].link_sec; |
edd21aca | 501 | |
a63e02c7 DA |
502 | if (hh != NULL && hh->hsh_cache != NULL |
503 | && hh->hsh_cache->hh == hh | |
504 | && hh->hsh_cache->id_sec == id_sec) | |
edd21aca | 505 | { |
a63e02c7 | 506 | hsh_entry = hh->hsh_cache; |
30667bf3 AM |
507 | } |
508 | else | |
509 | { | |
30667bf3 | 510 | char *stub_name; |
edd21aca | 511 | |
875c0872 | 512 | stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela); |
30667bf3 AM |
513 | if (stub_name == NULL) |
514 | return NULL; | |
edd21aca | 515 | |
a63e02c7 | 516 | hsh_entry = hppa_stub_hash_lookup (&htab->bstab, |
b34976b6 | 517 | stub_name, FALSE, FALSE); |
875c0872 | 518 | if (hh != NULL) |
a63e02c7 | 519 | hh->hsh_cache = hsh_entry; |
30667bf3 AM |
520 | |
521 | free (stub_name); | |
edd21aca | 522 | } |
30667bf3 | 523 | |
a63e02c7 | 524 | return hsh_entry; |
30667bf3 AM |
525 | } |
526 | ||
30667bf3 AM |
527 | /* Add a new stub entry to the stub hash. Not all fields of the new |
528 | stub entry are initialised. */ | |
529 | ||
530 | static struct elf32_hppa_stub_hash_entry * | |
c39a58e6 AM |
531 | hppa_add_stub (const char *stub_name, |
532 | asection *section, | |
533 | struct elf32_hppa_link_hash_table *htab) | |
30667bf3 | 534 | { |
25f72752 | 535 | asection *link_sec; |
30667bf3 | 536 | asection *stub_sec; |
875c0872 | 537 | struct elf32_hppa_stub_hash_entry *hsh; |
edd21aca | 538 | |
83c81bfe AM |
539 | link_sec = htab->stub_group[section->id].link_sec; |
540 | stub_sec = htab->stub_group[section->id].stub_sec; | |
30667bf3 | 541 | if (stub_sec == NULL) |
edd21aca | 542 | { |
83c81bfe | 543 | stub_sec = htab->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
544 | if (stub_sec == NULL) |
545 | { | |
d4c88bbb | 546 | size_t namelen; |
dc810e39 | 547 | bfd_size_type len; |
30667bf3 AM |
548 | char *s_name; |
549 | ||
d4c88bbb AM |
550 | namelen = strlen (link_sec->name); |
551 | len = namelen + sizeof (STUB_SUFFIX); | |
83c81bfe | 552 | s_name = bfd_alloc (htab->stub_bfd, len); |
30667bf3 AM |
553 | if (s_name == NULL) |
554 | return NULL; | |
555 | ||
d4c88bbb AM |
556 | memcpy (s_name, link_sec->name, namelen); |
557 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
83c81bfe | 558 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
559 | if (stub_sec == NULL) |
560 | return NULL; | |
83c81bfe | 561 | htab->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 562 | } |
83c81bfe | 563 | htab->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 564 | } |
252b5132 | 565 | |
30667bf3 | 566 | /* Enter this entry into the linker stub hash table. */ |
a63e02c7 | 567 | hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name, |
b34976b6 | 568 | TRUE, FALSE); |
875c0872 | 569 | if (hsh == NULL) |
30667bf3 | 570 | { |
d003868e AM |
571 | (*_bfd_error_handler) (_("%B: cannot create stub entry %s"), |
572 | section->owner, | |
30667bf3 AM |
573 | stub_name); |
574 | return NULL; | |
edd21aca AM |
575 | } |
576 | ||
875c0872 DA |
577 | hsh->stub_sec = stub_sec; |
578 | hsh->stub_offset = 0; | |
579 | hsh->id_sec = link_sec; | |
580 | return hsh; | |
edd21aca AM |
581 | } |
582 | ||
30667bf3 AM |
583 | /* Determine the type of stub needed, if any, for a call. */ |
584 | ||
585 | static enum elf32_hppa_stub_type | |
c39a58e6 | 586 | hppa_type_of_stub (asection *input_sec, |
875c0872 DA |
587 | const Elf_Internal_Rela *rela, |
588 | struct elf32_hppa_link_hash_entry *hh, | |
a252afa4 DA |
589 | bfd_vma destination, |
590 | struct bfd_link_info *info) | |
edd21aca | 591 | { |
edd21aca | 592 | bfd_vma location; |
30667bf3 AM |
593 | bfd_vma branch_offset; |
594 | bfd_vma max_branch_offset; | |
595 | unsigned int r_type; | |
596 | ||
875c0872 | 597 | if (hh != NULL |
a63e02c7 DA |
598 | && hh->eh.plt.offset != (bfd_vma) -1 |
599 | && hh->eh.dynindx != -1 | |
875c0872 | 600 | && !hh->plabel |
a252afa4 | 601 | && (info->shared |
a63e02c7 DA |
602 | || !hh->eh.def_regular |
603 | || hh->eh.root.type == bfd_link_hash_defweak)) | |
30667bf3 | 604 | { |
067fa4a6 AM |
605 | /* We need an import stub. Decide between hppa_stub_import |
606 | and hppa_stub_import_shared later. */ | |
30667bf3 AM |
607 | return hppa_stub_import; |
608 | } | |
edd21aca | 609 | |
30667bf3 AM |
610 | /* Determine where the call point is. */ |
611 | location = (input_sec->output_offset | |
612 | + input_sec->output_section->vma | |
875c0872 | 613 | + rela->r_offset); |
edd21aca | 614 | |
30667bf3 | 615 | branch_offset = destination - location - 8; |
875c0872 | 616 | r_type = ELF32_R_TYPE (rela->r_info); |
edd21aca | 617 | |
30667bf3 AM |
618 | /* Determine if a long branch stub is needed. parisc branch offsets |
619 | are relative to the second instruction past the branch, ie. +8 | |
620 | bytes on from the branch instruction location. The offset is | |
621 | signed and counts in units of 4 bytes. */ | |
622 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 623 | { |
30667bf3 AM |
624 | max_branch_offset = (1 << (17-1)) << 2; |
625 | } | |
626 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
627 | { | |
628 | max_branch_offset = (1 << (12-1)) << 2; | |
629 | } | |
25f72752 | 630 | else /* R_PARISC_PCREL22F. */ |
30667bf3 AM |
631 | { |
632 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
633 | } |
634 | ||
30667bf3 | 635 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
636 | return hppa_stub_long_branch; |
637 | ||
30667bf3 AM |
638 | return hppa_stub_none; |
639 | } | |
edd21aca | 640 | |
30667bf3 AM |
641 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
642 | IN_ARG contains the link info pointer. */ | |
edd21aca | 643 | |
30667bf3 AM |
644 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
645 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 646 | |
30667bf3 | 647 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 648 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 649 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 650 | |
3ee1d854 AM |
651 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
652 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 653 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 654 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 655 | |
3ee1d854 AM |
656 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
657 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 658 | |
30667bf3 AM |
659 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
660 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
661 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
662 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 663 | |
067fa4a6 | 664 | #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */ |
30667bf3 AM |
665 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
666 | #define NOP 0x08000240 /* nop */ | |
667 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
668 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
669 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 670 | |
30667bf3 AM |
671 | #ifndef R19_STUBS |
672 | #define R19_STUBS 1 | |
673 | #endif | |
edd21aca | 674 | |
30667bf3 AM |
675 | #if R19_STUBS |
676 | #define LDW_R1_DLT LDW_R1_R19 | |
677 | #else | |
678 | #define LDW_R1_DLT LDW_R1_DP | |
679 | #endif | |
edd21aca | 680 | |
b34976b6 | 681 | static bfd_boolean |
875c0872 | 682 | hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg) |
30667bf3 | 683 | { |
875c0872 | 684 | struct elf32_hppa_stub_hash_entry *hsh; |
30667bf3 | 685 | struct bfd_link_info *info; |
83c81bfe | 686 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
687 | asection *stub_sec; |
688 | bfd *stub_bfd; | |
689 | bfd_byte *loc; | |
690 | bfd_vma sym_value; | |
74d1c347 | 691 | bfd_vma insn; |
8dea1268 | 692 | bfd_vma off; |
74d1c347 | 693 | int val; |
30667bf3 | 694 | int size; |
edd21aca | 695 | |
30667bf3 | 696 | /* Massage our args to the form they really have. */ |
875c0872 DA |
697 | hsh = hppa_stub_hash_entry (bh); |
698 | info = (struct bfd_link_info *)in_arg; | |
30667bf3 | 699 | |
83c81bfe | 700 | htab = hppa_link_hash_table (info); |
875c0872 | 701 | stub_sec = hsh->stub_sec; |
edd21aca | 702 | |
30667bf3 | 703 | /* Make a note of the offset within the stubs for this entry. */ |
875c0872 DA |
704 | hsh->stub_offset = stub_sec->size; |
705 | loc = stub_sec->contents + hsh->stub_offset; | |
252b5132 | 706 | |
30667bf3 AM |
707 | stub_bfd = stub_sec->owner; |
708 | ||
875c0872 | 709 | switch (hsh->stub_type) |
30667bf3 AM |
710 | { |
711 | case hppa_stub_long_branch: | |
712 | /* Create the long branch. A long branch is formed with "ldil" | |
713 | loading the upper bits of the target address into a register, | |
714 | then branching with "be" which adds in the lower bits. | |
715 | The "be" has its delay slot nullified. */ | |
875c0872 DA |
716 | sym_value = (hsh->target_value |
717 | + hsh->target_section->output_offset | |
718 | + hsh->target_section->output_section->vma); | |
30667bf3 | 719 | |
c39a58e6 | 720 | val = hppa_field_adjust (sym_value, 0, e_lrsel); |
74d1c347 | 721 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); |
30667bf3 AM |
722 | bfd_put_32 (stub_bfd, insn, loc); |
723 | ||
c39a58e6 | 724 | val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2; |
74d1c347 | 725 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
726 | bfd_put_32 (stub_bfd, insn, loc + 4); |
727 | ||
30667bf3 | 728 | size = 8; |
edd21aca AM |
729 | break; |
730 | ||
30667bf3 AM |
731 | case hppa_stub_long_branch_shared: |
732 | /* Branches are relative. This is where we are going to. */ | |
875c0872 DA |
733 | sym_value = (hsh->target_value |
734 | + hsh->target_section->output_offset | |
735 | + hsh->target_section->output_section->vma); | |
30667bf3 AM |
736 | |
737 | /* And this is where we are coming from, more or less. */ | |
875c0872 | 738 | sym_value -= (hsh->stub_offset |
30667bf3 AM |
739 | + stub_sec->output_offset |
740 | + stub_sec->output_section->vma); | |
741 | ||
74d1c347 | 742 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 743 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 744 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
745 | bfd_put_32 (stub_bfd, insn, loc + 4); |
746 | ||
47d89dba | 747 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 748 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
749 | bfd_put_32 (stub_bfd, insn, loc + 8); |
750 | size = 12; | |
751 | break; | |
edd21aca | 752 | |
30667bf3 AM |
753 | case hppa_stub_import: |
754 | case hppa_stub_import_shared: | |
a63e02c7 | 755 | off = hsh->hh->eh.plt.offset; |
8dea1268 | 756 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 757 | abort (); |
8dea1268 AM |
758 | |
759 | off &= ~ (bfd_vma) 1; | |
760 | sym_value = (off | |
83c81bfe AM |
761 | + htab->splt->output_offset |
762 | + htab->splt->output_section->vma | |
763 | - elf_gp (htab->splt->output_section->owner)); | |
30667bf3 AM |
764 | |
765 | insn = ADDIL_DP; | |
766 | #if R19_STUBS | |
875c0872 | 767 | if (hsh->stub_type == hppa_stub_import_shared) |
30667bf3 AM |
768 | insn = ADDIL_R19; |
769 | #endif | |
c39a58e6 | 770 | val = hppa_field_adjust (sym_value, 0, e_lrsel), |
74d1c347 | 771 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 772 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 773 | |
47d89dba AM |
774 | /* It is critical to use lrsel/rrsel here because we are using |
775 | two different offsets (+0 and +4) from sym_value. If we use | |
776 | lsel/rsel then with unfortunate sym_values we will round | |
777 | sym_value+4 up to the next 2k block leading to a mis-match | |
778 | between the lsel and rsel value. */ | |
c39a58e6 | 779 | val = hppa_field_adjust (sym_value, 0, e_rrsel); |
74d1c347 | 780 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 781 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 782 | |
83c81bfe | 783 | if (htab->multi_subspace) |
30667bf3 | 784 | { |
47d89dba | 785 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 786 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 787 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 788 | |
74d1c347 AM |
789 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
790 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
791 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
792 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 793 | |
30667bf3 AM |
794 | size = 28; |
795 | } | |
796 | else | |
797 | { | |
74d1c347 | 798 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 799 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 800 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 801 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 802 | |
30667bf3 AM |
803 | size = 16; |
804 | } | |
252b5132 | 805 | |
30667bf3 | 806 | break; |
252b5132 | 807 | |
30667bf3 AM |
808 | case hppa_stub_export: |
809 | /* Branches are relative. This is where we are going to. */ | |
875c0872 DA |
810 | sym_value = (hsh->target_value |
811 | + hsh->target_section->output_offset | |
812 | + hsh->target_section->output_section->vma); | |
252b5132 | 813 | |
30667bf3 | 814 | /* And this is where we are coming from. */ |
875c0872 | 815 | sym_value -= (hsh->stub_offset |
30667bf3 AM |
816 | + stub_sec->output_offset |
817 | + stub_sec->output_section->vma); | |
edd21aca | 818 | |
067fa4a6 AM |
819 | if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2)) |
820 | && (!htab->has_22bit_branch | |
821 | || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2)))) | |
30667bf3 | 822 | { |
edd21aca | 823 | (*_bfd_error_handler) |
d003868e | 824 | (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
875c0872 | 825 | hsh->target_section->owner, |
d003868e | 826 | stub_sec, |
875c0872 | 827 | (long) hsh->stub_offset, |
a63e02c7 | 828 | hsh->bh_root.string); |
30667bf3 | 829 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 830 | return FALSE; |
252b5132 | 831 | } |
30667bf3 | 832 | |
74d1c347 | 833 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
067fa4a6 AM |
834 | if (!htab->has_22bit_branch) |
835 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
836 | else | |
837 | insn = hppa_rebuild_insn ((int) BL22_RP, val, 22); | |
30667bf3 AM |
838 | bfd_put_32 (stub_bfd, insn, loc); |
839 | ||
74d1c347 AM |
840 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
841 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
842 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
843 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
844 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
845 | |
846 | /* Point the function symbol at the stub. */ | |
a63e02c7 DA |
847 | hsh->hh->eh.root.u.def.section = stub_sec; |
848 | hsh->hh->eh.root.u.def.value = stub_sec->size; | |
30667bf3 AM |
849 | |
850 | size = 24; | |
851 | break; | |
852 | ||
853 | default: | |
854 | BFD_FAIL (); | |
b34976b6 | 855 | return FALSE; |
252b5132 RH |
856 | } |
857 | ||
eea6121a | 858 | stub_sec->size += size; |
b34976b6 | 859 | return TRUE; |
252b5132 RH |
860 | } |
861 | ||
30667bf3 AM |
862 | #undef LDIL_R1 |
863 | #undef BE_SR4_R1 | |
864 | #undef BL_R1 | |
865 | #undef ADDIL_R1 | |
866 | #undef DEPI_R1 | |
30667bf3 AM |
867 | #undef LDW_R1_R21 |
868 | #undef LDW_R1_DLT | |
869 | #undef LDW_R1_R19 | |
870 | #undef ADDIL_R19 | |
871 | #undef LDW_R1_DP | |
872 | #undef LDSID_R21_R1 | |
873 | #undef MTSP_R1 | |
874 | #undef BE_SR0_R21 | |
875 | #undef STW_RP | |
876 | #undef BV_R0_R21 | |
877 | #undef BL_RP | |
878 | #undef NOP | |
879 | #undef LDW_RP | |
880 | #undef LDSID_RP_R1 | |
881 | #undef BE_SR0_RP | |
252b5132 | 882 | |
30667bf3 AM |
883 | /* As above, but don't actually build the stub. Just bump offset so |
884 | we know stub section sizes. */ | |
885 | ||
b34976b6 | 886 | static bfd_boolean |
875c0872 | 887 | hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg) |
252b5132 | 888 | { |
875c0872 | 889 | struct elf32_hppa_stub_hash_entry *hsh; |
83c81bfe | 890 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
891 | int size; |
892 | ||
893 | /* Massage our args to the form they really have. */ | |
875c0872 | 894 | hsh = hppa_stub_hash_entry (bh); |
c39a58e6 | 895 | htab = in_arg; |
30667bf3 | 896 | |
875c0872 | 897 | if (hsh->stub_type == hppa_stub_long_branch) |
98ceb8ce | 898 | size = 8; |
875c0872 | 899 | else if (hsh->stub_type == hppa_stub_long_branch_shared) |
30667bf3 | 900 | size = 12; |
875c0872 | 901 | else if (hsh->stub_type == hppa_stub_export) |
30667bf3 | 902 | size = 24; |
74d1c347 | 903 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 904 | { |
83c81bfe | 905 | if (htab->multi_subspace) |
30667bf3 AM |
906 | size = 28; |
907 | else | |
908 | size = 16; | |
909 | } | |
252b5132 | 910 | |
875c0872 | 911 | hsh->stub_sec->size += size; |
b34976b6 | 912 | return TRUE; |
30667bf3 | 913 | } |
252b5132 | 914 | |
30667bf3 AM |
915 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
916 | Additionally we set the default architecture and machine. */ | |
917 | ||
b34976b6 | 918 | static bfd_boolean |
c39a58e6 | 919 | elf32_hppa_object_p (bfd *abfd) |
30667bf3 | 920 | { |
24a5e751 L |
921 | Elf_Internal_Ehdr * i_ehdrp; |
922 | unsigned int flags; | |
252b5132 | 923 | |
24a5e751 L |
924 | i_ehdrp = elf_elfheader (abfd); |
925 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
926 | { | |
6c21aa76 NC |
927 | /* GCC on hppa-linux produces binaries with OSABI=Linux, |
928 | but the kernel produces corefiles with OSABI=SysV. */ | |
929 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX && | |
930 | i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ | |
b34976b6 | 931 | return FALSE; |
24a5e751 | 932 | } |
225247f0 JT |
933 | else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0) |
934 | { | |
935 | /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD, | |
936 | but the kernel produces corefiles with OSABI=SysV. */ | |
937 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD && | |
938 | i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ | |
939 | return FALSE; | |
940 | } | |
24a5e751 L |
941 | else |
942 | { | |
943 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
b34976b6 | 944 | return FALSE; |
24a5e751 L |
945 | } |
946 | ||
947 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
948 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
949 | { | |
950 | case EFA_PARISC_1_0: | |
951 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
952 | case EFA_PARISC_1_1: | |
953 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
954 | case EFA_PARISC_2_0: | |
955 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
956 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
957 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
958 | } | |
b34976b6 | 959 | return TRUE; |
252b5132 RH |
960 | } |
961 | ||
30667bf3 AM |
962 | /* Create the .plt and .got sections, and set up our hash table |
963 | short-cuts to various dynamic sections. */ | |
964 | ||
b34976b6 | 965 | static bfd_boolean |
c39a58e6 | 966 | elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 967 | { |
83c81bfe | 968 | struct elf32_hppa_link_hash_table *htab; |
875c0872 | 969 | struct elf_link_hash_entry *eh; |
edd21aca | 970 | |
30667bf3 | 971 | /* Don't try to create the .plt and .got twice. */ |
83c81bfe AM |
972 | htab = hppa_link_hash_table (info); |
973 | if (htab->splt != NULL) | |
b34976b6 | 974 | return TRUE; |
edd21aca | 975 | |
30667bf3 AM |
976 | /* Call the generic code to do most of the work. */ |
977 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
b34976b6 | 978 | return FALSE; |
252b5132 | 979 | |
83c81bfe AM |
980 | htab->splt = bfd_get_section_by_name (abfd, ".plt"); |
981 | htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
30667bf3 | 982 | |
83c81bfe | 983 | htab->sgot = bfd_get_section_by_name (abfd, ".got"); |
3496cb2a L |
984 | htab->srelgot = bfd_make_section_with_flags (abfd, ".rela.got", |
985 | (SEC_ALLOC | |
986 | | SEC_LOAD | |
987 | | SEC_HAS_CONTENTS | |
988 | | SEC_IN_MEMORY | |
989 | | SEC_LINKER_CREATED | |
990 | | SEC_READONLY)); | |
83c81bfe | 991 | if (htab->srelgot == NULL |
83c81bfe | 992 | || ! bfd_set_section_alignment (abfd, htab->srelgot, 2)) |
b34976b6 | 993 | return FALSE; |
edd21aca | 994 | |
83c81bfe AM |
995 | htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
996 | htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
30667bf3 | 997 | |
b18e2ae5 AM |
998 | /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main |
999 | application, because __canonicalize_funcptr_for_compare needs it. */ | |
875c0872 DA |
1000 | eh = elf_hash_table (info)->hgot; |
1001 | eh->forced_local = 0; | |
1002 | eh->other = STV_DEFAULT; | |
1003 | return bfd_elf_link_record_dynamic_symbol (info, eh); | |
30667bf3 AM |
1004 | } |
1005 | ||
ebe50bae AM |
1006 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1007 | ||
51b64d56 | 1008 | static void |
fcfa13d2 | 1009 | elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info, |
875c0872 DA |
1010 | struct elf_link_hash_entry *eh_dir, |
1011 | struct elf_link_hash_entry *eh_ind) | |
ebe50bae | 1012 | { |
875c0872 | 1013 | struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind; |
ebe50bae | 1014 | |
875c0872 DA |
1015 | hh_dir = hppa_elf_hash_entry (eh_dir); |
1016 | hh_ind = hppa_elf_hash_entry (eh_ind); | |
ebe50bae | 1017 | |
875c0872 | 1018 | if (hh_ind->dyn_relocs != NULL) |
ebe50bae | 1019 | { |
875c0872 | 1020 | if (hh_dir->dyn_relocs != NULL) |
bbd7ec4a | 1021 | { |
875c0872 DA |
1022 | struct elf32_hppa_dyn_reloc_entry **hdh_pp; |
1023 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
bbd7ec4a | 1024 | |
fcfa13d2 | 1025 | /* Add reloc counts against the indirect sym to the direct sym |
bbd7ec4a | 1026 | list. Merge any entries against the same section. */ |
875c0872 | 1027 | for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; ) |
bbd7ec4a | 1028 | { |
875c0872 | 1029 | struct elf32_hppa_dyn_reloc_entry *hdh_q; |
bbd7ec4a | 1030 | |
fcfa13d2 AM |
1031 | for (hdh_q = hh_dir->dyn_relocs; |
1032 | hdh_q != NULL; | |
1033 | hdh_q = hdh_q->hdh_next) | |
875c0872 | 1034 | if (hdh_q->sec == hdh_p->sec) |
bbd7ec4a AM |
1035 | { |
1036 | #if RELATIVE_DYNRELOCS | |
875c0872 | 1037 | hdh_q->relative_count += hdh_p->relative_count; |
bbd7ec4a | 1038 | #endif |
875c0872 | 1039 | hdh_q->count += hdh_p->count; |
a63e02c7 | 1040 | *hdh_pp = hdh_p->hdh_next; |
bbd7ec4a AM |
1041 | break; |
1042 | } | |
875c0872 | 1043 | if (hdh_q == NULL) |
a63e02c7 | 1044 | hdh_pp = &hdh_p->hdh_next; |
bbd7ec4a | 1045 | } |
875c0872 | 1046 | *hdh_pp = hh_dir->dyn_relocs; |
bbd7ec4a AM |
1047 | } |
1048 | ||
875c0872 DA |
1049 | hh_dir->dyn_relocs = hh_ind->dyn_relocs; |
1050 | hh_ind->dyn_relocs = NULL; | |
ebe50bae | 1051 | } |
ebe50bae | 1052 | |
4fc8051d | 1053 | if (ELIMINATE_COPY_RELOCS |
875c0872 DA |
1054 | && eh_ind->root.type != bfd_link_hash_indirect |
1055 | && eh_dir->dynamic_adjusted) | |
f5385ebf AM |
1056 | { |
1057 | /* If called to transfer flags for a weakdef during processing | |
1058 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
1059 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
875c0872 DA |
1060 | eh_dir->ref_dynamic |= eh_ind->ref_dynamic; |
1061 | eh_dir->ref_regular |= eh_ind->ref_regular; | |
1062 | eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak; | |
1063 | eh_dir->needs_plt |= eh_ind->needs_plt; | |
f5385ebf | 1064 | } |
4fc8051d | 1065 | else |
fcfa13d2 | 1066 | _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind); |
ebe50bae AM |
1067 | } |
1068 | ||
30667bf3 | 1069 | /* Look through the relocs for a section during the first phase, and |
3ac8354b AM |
1070 | calculate needed space in the global offset table, procedure linkage |
1071 | table, and dynamic reloc sections. At this point we haven't | |
1072 | necessarily read all the input files. */ | |
252b5132 | 1073 | |
b34976b6 | 1074 | static bfd_boolean |
c39a58e6 AM |
1075 | elf32_hppa_check_relocs (bfd *abfd, |
1076 | struct bfd_link_info *info, | |
1077 | asection *sec, | |
1078 | const Elf_Internal_Rela *relocs) | |
252b5132 | 1079 | { |
30667bf3 | 1080 | Elf_Internal_Shdr *symtab_hdr; |
875c0872 DA |
1081 | struct elf_link_hash_entry **eh_syms; |
1082 | const Elf_Internal_Rela *rela; | |
1083 | const Elf_Internal_Rela *rela_end; | |
83c81bfe | 1084 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1085 | asection *sreloc; |
1086 | asection *stubreloc; | |
1087 | ||
1049f94e | 1088 | if (info->relocatable) |
b34976b6 | 1089 | return TRUE; |
30667bf3 | 1090 | |
83c81bfe | 1091 | htab = hppa_link_hash_table (info); |
30667bf3 | 1092 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
875c0872 | 1093 | eh_syms = elf_sym_hashes (abfd); |
30667bf3 AM |
1094 | sreloc = NULL; |
1095 | stubreloc = NULL; | |
1096 | ||
875c0872 DA |
1097 | rela_end = relocs + sec->reloc_count; |
1098 | for (rela = relocs; rela < rela_end; rela++) | |
30667bf3 AM |
1099 | { |
1100 | enum { | |
1101 | NEED_GOT = 1, | |
1102 | NEED_PLT = 2, | |
1103 | NEED_DYNREL = 4, | |
98ceb8ce | 1104 | PLT_PLABEL = 8 |
30667bf3 | 1105 | }; |
edd21aca | 1106 | |
30667bf3 | 1107 | unsigned int r_symndx, r_type; |
875c0872 DA |
1108 | struct elf32_hppa_link_hash_entry *hh; |
1109 | int need_entry = 0; | |
252b5132 | 1110 | |
875c0872 | 1111 | r_symndx = ELF32_R_SYM (rela->r_info); |
252b5132 | 1112 | |
30667bf3 | 1113 | if (r_symndx < symtab_hdr->sh_info) |
875c0872 | 1114 | hh = NULL; |
30667bf3 | 1115 | else |
f7c5057a | 1116 | { |
875c0872 | 1117 | hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]); |
a63e02c7 DA |
1118 | while (hh->eh.root.type == bfd_link_hash_indirect |
1119 | || hh->eh.root.type == bfd_link_hash_warning) | |
1120 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
f7c5057a | 1121 | } |
252b5132 | 1122 | |
875c0872 | 1123 | r_type = ELF32_R_TYPE (rela->r_info); |
252b5132 | 1124 | |
30667bf3 AM |
1125 | switch (r_type) |
1126 | { | |
1127 | case R_PARISC_DLTIND14F: | |
1128 | case R_PARISC_DLTIND14R: | |
1129 | case R_PARISC_DLTIND21L: | |
1130 | /* This symbol requires a global offset table entry. */ | |
1131 | need_entry = NEED_GOT; | |
30667bf3 AM |
1132 | break; |
1133 | ||
1134 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1135 | case R_PARISC_PLABEL21L: | |
1136 | case R_PARISC_PLABEL32: | |
74d1c347 | 1137 | /* If the addend is non-zero, we break badly. */ |
875c0872 | 1138 | if (rela->r_addend != 0) |
49e9d0d3 | 1139 | abort (); |
74d1c347 AM |
1140 | |
1141 | /* If we are creating a shared library, then we need to | |
1142 | create a PLT entry for all PLABELs, because PLABELs with | |
1143 | local symbols may be passed via a pointer to another | |
1144 | object. Additionally, output a dynamic relocation | |
4dc86686 | 1145 | pointing to the PLT entry. |
875c0872 | 1146 | |
4dc86686 AM |
1147 | For executables, the original 32-bit ABI allowed two |
1148 | different styles of PLABELs (function pointers): For | |
1149 | global functions, the PLABEL word points into the .plt | |
1150 | two bytes past a (function address, gp) pair, and for | |
1151 | local functions the PLABEL points directly at the | |
1152 | function. The magic +2 for the first type allows us to | |
1153 | differentiate between the two. As you can imagine, this | |
1154 | is a real pain when it comes to generating code to call | |
1155 | functions indirectly or to compare function pointers. | |
1156 | We avoid the mess by always pointing a PLABEL into the | |
1157 | .plt, even for local functions. */ | |
74d1c347 | 1158 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1159 | break; |
1160 | ||
1161 | case R_PARISC_PCREL12F: | |
83c81bfe | 1162 | htab->has_12bit_branch = 1; |
067fa4a6 AM |
1163 | goto branch_common; |
1164 | ||
30667bf3 AM |
1165 | case R_PARISC_PCREL17C: |
1166 | case R_PARISC_PCREL17F: | |
83c81bfe | 1167 | htab->has_17bit_branch = 1; |
067fa4a6 AM |
1168 | goto branch_common; |
1169 | ||
30667bf3 | 1170 | case R_PARISC_PCREL22F: |
067fa4a6 AM |
1171 | htab->has_22bit_branch = 1; |
1172 | branch_common: | |
47d89dba AM |
1173 | /* Function calls might need to go through the .plt, and |
1174 | might require long branch stubs. */ | |
875c0872 | 1175 | if (hh == NULL) |
30667bf3 AM |
1176 | { |
1177 | /* We know local syms won't need a .plt entry, and if | |
1178 | they need a long branch stub we can't guarantee that | |
1179 | we can reach the stub. So just flag an error later | |
1180 | if we're doing a shared link and find we need a long | |
1181 | branch stub. */ | |
1182 | continue; | |
1183 | } | |
1184 | else | |
1185 | { | |
1186 | /* Global symbols will need a .plt entry if they remain | |
1187 | global, and in most cases won't need a long branch | |
1188 | stub. Unfortunately, we have to cater for the case | |
1189 | where a symbol is forced local by versioning, or due | |
1190 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1191 | need_entry = NEED_PLT; |
a63e02c7 | 1192 | if (hh->eh.type == STT_PARISC_MILLI) |
98ceb8ce | 1193 | need_entry = 0; |
30667bf3 AM |
1194 | } |
1195 | break; | |
1196 | ||
36751eee | 1197 | case R_PARISC_SEGBASE: /* Used to set segment base. */ |
c46b7515 | 1198 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1199 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1200 | case R_PARISC_PCREL14R: | |
1201 | case R_PARISC_PCREL17R: /* External branches. */ | |
1202 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
36751eee | 1203 | case R_PARISC_PCREL32: |
30667bf3 AM |
1204 | /* We don't need to propagate the relocation if linking a |
1205 | shared object since these are section relative. */ | |
1206 | continue; | |
1207 | ||
1208 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1209 | case R_PARISC_DPREL14R: | |
1210 | case R_PARISC_DPREL21L: | |
1211 | if (info->shared) | |
1212 | { | |
1213 | (*_bfd_error_handler) | |
d003868e AM |
1214 | (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"), |
1215 | abfd, | |
30667bf3 AM |
1216 | elf_hppa_howto_table[r_type].name); |
1217 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1218 | return FALSE; |
30667bf3 AM |
1219 | } |
1220 | /* Fall through. */ | |
1221 | ||
1222 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1223 | case R_PARISC_DIR17R: | |
47d89dba AM |
1224 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1225 | case R_PARISC_DIR14R: | |
30667bf3 | 1226 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
c46b7515 | 1227 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1228 | /* We may want to output a dynamic relocation later. */ |
1229 | need_entry = NEED_DYNREL; | |
1230 | break; | |
1231 | ||
1232 | /* This relocation describes the C++ object vtable hierarchy. | |
1233 | Reconstruct it for later use during GC. */ | |
1234 | case R_PARISC_GNU_VTINHERIT: | |
a63e02c7 | 1235 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset)) |
b34976b6 | 1236 | return FALSE; |
30667bf3 AM |
1237 | continue; |
1238 | ||
1239 | /* This relocation describes which C++ vtable entries are actually | |
1240 | used. Record for later use during GC. */ | |
1241 | case R_PARISC_GNU_VTENTRY: | |
a63e02c7 | 1242 | if (!bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend)) |
b34976b6 | 1243 | return FALSE; |
30667bf3 AM |
1244 | continue; |
1245 | ||
1246 | default: | |
1247 | continue; | |
1248 | } | |
1249 | ||
1250 | /* Now carry out our orders. */ | |
1251 | if (need_entry & NEED_GOT) | |
1252 | { | |
1253 | /* Allocate space for a GOT entry, as well as a dynamic | |
25f72752 | 1254 | relocation for this entry. */ |
83c81bfe | 1255 | if (htab->sgot == NULL) |
30667bf3 | 1256 | { |
a63e02c7 DA |
1257 | if (htab->etab.dynobj == NULL) |
1258 | htab->etab.dynobj = abfd; | |
1259 | if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info)) | |
b34976b6 | 1260 | return FALSE; |
30667bf3 AM |
1261 | } |
1262 | ||
875c0872 | 1263 | if (hh != NULL) |
30667bf3 | 1264 | { |
a63e02c7 | 1265 | hh->eh.got.refcount += 1; |
30667bf3 AM |
1266 | } |
1267 | else | |
1268 | { | |
3ac8354b | 1269 | bfd_signed_vma *local_got_refcounts; |
875c0872 | 1270 | /* This is a global offset table entry for a local symbol. */ |
3ac8354b | 1271 | local_got_refcounts = elf_local_got_refcounts (abfd); |
30667bf3 AM |
1272 | if (local_got_refcounts == NULL) |
1273 | { | |
dc810e39 | 1274 | bfd_size_type size; |
30667bf3 | 1275 | |
74d1c347 AM |
1276 | /* Allocate space for local got offsets and local |
1277 | plt offsets. Done this way to save polluting | |
1278 | elf_obj_tdata with another target specific | |
1279 | pointer. */ | |
dc810e39 AM |
1280 | size = symtab_hdr->sh_info; |
1281 | size *= 2 * sizeof (bfd_signed_vma); | |
c39a58e6 | 1282 | local_got_refcounts = bfd_zalloc (abfd, size); |
30667bf3 | 1283 | if (local_got_refcounts == NULL) |
b34976b6 | 1284 | return FALSE; |
30667bf3 | 1285 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
30667bf3 | 1286 | } |
ebe50bae | 1287 | local_got_refcounts[r_symndx] += 1; |
30667bf3 AM |
1288 | } |
1289 | } | |
1290 | ||
1291 | if (need_entry & NEED_PLT) | |
1292 | { | |
1293 | /* If we are creating a shared library, and this is a reloc | |
1294 | against a weak symbol or a global symbol in a dynamic | |
1295 | object, then we will be creating an import stub and a | |
1296 | .plt entry for the symbol. Similarly, on a normal link | |
1297 | to symbols defined in a dynamic object we'll need the | |
1298 | import stub and a .plt entry. We don't know yet whether | |
1299 | the symbol is defined or not, so make an entry anyway and | |
1300 | clean up later in adjust_dynamic_symbol. */ | |
1301 | if ((sec->flags & SEC_ALLOC) != 0) | |
1302 | { | |
875c0872 | 1303 | if (hh != NULL) |
30667bf3 | 1304 | { |
a63e02c7 DA |
1305 | hh->eh.needs_plt = 1; |
1306 | hh->eh.plt.refcount += 1; | |
74d1c347 | 1307 | |
36605136 AM |
1308 | /* If this .plt entry is for a plabel, mark it so |
1309 | that adjust_dynamic_symbol will keep the entry | |
1310 | even if it appears to be local. */ | |
74d1c347 | 1311 | if (need_entry & PLT_PLABEL) |
875c0872 | 1312 | hh->plabel = 1; |
74d1c347 AM |
1313 | } |
1314 | else if (need_entry & PLT_PLABEL) | |
1315 | { | |
3ac8354b | 1316 | bfd_signed_vma *local_got_refcounts; |
68fb2e56 | 1317 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 | 1318 | |
3ac8354b | 1319 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1320 | if (local_got_refcounts == NULL) |
1321 | { | |
dc810e39 | 1322 | bfd_size_type size; |
74d1c347 AM |
1323 | |
1324 | /* Allocate space for local got offsets and local | |
1325 | plt offsets. */ | |
dc810e39 AM |
1326 | size = symtab_hdr->sh_info; |
1327 | size *= 2 * sizeof (bfd_signed_vma); | |
c39a58e6 | 1328 | local_got_refcounts = bfd_zalloc (abfd, size); |
74d1c347 | 1329 | if (local_got_refcounts == NULL) |
b34976b6 | 1330 | return FALSE; |
74d1c347 | 1331 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
74d1c347 | 1332 | } |
68fb2e56 AM |
1333 | local_plt_refcounts = (local_got_refcounts |
1334 | + symtab_hdr->sh_info); | |
ebe50bae | 1335 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1336 | } |
30667bf3 AM |
1337 | } |
1338 | } | |
1339 | ||
98ceb8ce | 1340 | if (need_entry & NEED_DYNREL) |
30667bf3 AM |
1341 | { |
1342 | /* Flag this symbol as having a non-got, non-plt reference | |
1343 | so that we generate copy relocs if it turns out to be | |
1344 | dynamic. */ | |
875c0872 | 1345 | if (hh != NULL && !info->shared) |
a63e02c7 | 1346 | hh->eh.non_got_ref = 1; |
30667bf3 AM |
1347 | |
1348 | /* If we are creating a shared library then we need to copy | |
1349 | the reloc into the shared library. However, if we are | |
1350 | linking with -Bsymbolic, we need only copy absolute | |
1351 | relocs or relocs against symbols that are not defined in | |
1352 | an object we are including in the link. PC- or DP- or | |
1353 | DLT-relative relocs against any local sym or global sym | |
1354 | with DEF_REGULAR set, can be discarded. At this point we | |
1355 | have not seen all the input files, so it is possible that | |
1356 | DEF_REGULAR is not set now but will be set later (it is | |
1357 | never cleared). We account for that possibility below by | |
98ceb8ce | 1358 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1359 | hash table entry. |
1360 | ||
1361 | A similar situation to the -Bsymbolic case occurs when | |
1362 | creating shared libraries and symbol visibility changes | |
1363 | render the symbol local. | |
1364 | ||
1365 | As it turns out, all the relocs we will be creating here | |
1366 | are absolute, so we cannot remove them on -Bsymbolic | |
1367 | links or visibility changes anyway. A STUB_REL reloc | |
1368 | is absolute too, as in that case it is the reloc in the | |
1369 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1370 | reloc in the branch. |
1371 | ||
1372 | If on the other hand, we are creating an executable, we | |
1373 | may need to keep relocations for symbols satisfied by a | |
1374 | dynamic library if we manage to avoid copy relocs for the | |
1375 | symbol. */ | |
446f2863 AM |
1376 | if ((info->shared |
1377 | && (sec->flags & SEC_ALLOC) != 0 | |
1378 | && (IS_ABSOLUTE_RELOC (r_type) | |
875c0872 | 1379 | || (hh != NULL |
446f2863 | 1380 | && (!info->symbolic |
a63e02c7 DA |
1381 | || hh->eh.root.type == bfd_link_hash_defweak |
1382 | || !hh->eh.def_regular)))) | |
4fc8051d AM |
1383 | || (ELIMINATE_COPY_RELOCS |
1384 | && !info->shared | |
446f2863 | 1385 | && (sec->flags & SEC_ALLOC) != 0 |
875c0872 | 1386 | && hh != NULL |
a63e02c7 DA |
1387 | && (hh->eh.root.type == bfd_link_hash_defweak |
1388 | || !hh->eh.def_regular))) | |
30667bf3 | 1389 | { |
875c0872 DA |
1390 | struct elf32_hppa_dyn_reloc_entry *hdh_p; |
1391 | struct elf32_hppa_dyn_reloc_entry **hdh_head; | |
ec338859 | 1392 | |
30667bf3 AM |
1393 | /* Create a reloc section in dynobj and make room for |
1394 | this reloc. */ | |
98ceb8ce | 1395 | if (sreloc == NULL) |
30667bf3 AM |
1396 | { |
1397 | char *name; | |
3ac8354b | 1398 | bfd *dynobj; |
30667bf3 | 1399 | |
98ceb8ce AM |
1400 | name = (bfd_elf_string_from_elf_section |
1401 | (abfd, | |
1402 | elf_elfheader (abfd)->e_shstrndx, | |
1403 | elf_section_data (sec)->rel_hdr.sh_name)); | |
30667bf3 AM |
1404 | if (name == NULL) |
1405 | { | |
1406 | (*_bfd_error_handler) | |
1407 | (_("Could not find relocation section for %s"), | |
1408 | sec->name); | |
1409 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1410 | return FALSE; |
30667bf3 AM |
1411 | } |
1412 | ||
a63e02c7 DA |
1413 | if (htab->etab.dynobj == NULL) |
1414 | htab->etab.dynobj = abfd; | |
3ac8354b | 1415 | |
a63e02c7 | 1416 | dynobj = htab->etab.dynobj; |
98ceb8ce AM |
1417 | sreloc = bfd_get_section_by_name (dynobj, name); |
1418 | if (sreloc == NULL) | |
30667bf3 AM |
1419 | { |
1420 | flagword flags; | |
1421 | ||
30667bf3 AM |
1422 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1423 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1424 | if ((sec->flags & SEC_ALLOC) != 0) | |
1425 | flags |= SEC_ALLOC | SEC_LOAD; | |
3496cb2a L |
1426 | sreloc = bfd_make_section_with_flags (dynobj, |
1427 | name, | |
1428 | flags); | |
98ceb8ce | 1429 | if (sreloc == NULL |
98ceb8ce | 1430 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) |
b34976b6 | 1431 | return FALSE; |
30667bf3 | 1432 | } |
30667bf3 | 1433 | |
98ceb8ce | 1434 | elf_section_data (sec)->sreloc = sreloc; |
30667bf3 AM |
1435 | } |
1436 | ||
98ceb8ce AM |
1437 | /* If this is a global symbol, we count the number of |
1438 | relocations we need for this symbol. */ | |
875c0872 | 1439 | if (hh != NULL) |
30667bf3 | 1440 | { |
875c0872 | 1441 | hdh_head = &hh->dyn_relocs; |
ec338859 AM |
1442 | } |
1443 | else | |
1444 | { | |
1445 | /* Track dynamic relocs needed for local syms too. | |
1446 | We really need local syms available to do this | |
1447 | easily. Oh well. */ | |
1448 | ||
875c0872 | 1449 | asection *sr; |
6edfbbad DJ |
1450 | void *vpp; |
1451 | ||
875c0872 DA |
1452 | sr = bfd_section_from_r_symndx (abfd, &htab->sym_sec, |
1453 | sec, r_symndx); | |
1454 | if (sr == NULL) | |
b34976b6 | 1455 | return FALSE; |
30667bf3 | 1456 | |
6edfbbad DJ |
1457 | vpp = &elf_section_data (sr)->local_dynrel; |
1458 | hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp; | |
ec338859 AM |
1459 | } |
1460 | ||
875c0872 DA |
1461 | hdh_p = *hdh_head; |
1462 | if (hdh_p == NULL || hdh_p->sec != sec) | |
ec338859 | 1463 | { |
a63e02c7 | 1464 | hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p); |
875c0872 | 1465 | if (hdh_p == NULL) |
b34976b6 | 1466 | return FALSE; |
a63e02c7 | 1467 | hdh_p->hdh_next = *hdh_head; |
875c0872 DA |
1468 | *hdh_head = hdh_p; |
1469 | hdh_p->sec = sec; | |
1470 | hdh_p->count = 0; | |
98ceb8ce | 1471 | #if RELATIVE_DYNRELOCS |
875c0872 | 1472 | hdh_p->relative_count = 0; |
98ceb8ce | 1473 | #endif |
ec338859 | 1474 | } |
98ceb8ce | 1475 | |
875c0872 | 1476 | hdh_p->count += 1; |
98ceb8ce | 1477 | #if RELATIVE_DYNRELOCS |
ec338859 | 1478 | if (!IS_ABSOLUTE_RELOC (rtype)) |
875c0872 | 1479 | hdh_p->relative_count += 1; |
98ceb8ce | 1480 | #endif |
30667bf3 AM |
1481 | } |
1482 | } | |
1483 | } | |
edd21aca | 1484 | |
b34976b6 | 1485 | return TRUE; |
edd21aca AM |
1486 | } |
1487 | ||
30667bf3 AM |
1488 | /* Return the section that should be marked against garbage collection |
1489 | for a given relocation. */ | |
1490 | ||
1491 | static asection * | |
c39a58e6 AM |
1492 | elf32_hppa_gc_mark_hook (asection *sec, |
1493 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
875c0872 DA |
1494 | Elf_Internal_Rela *rela, |
1495 | struct elf_link_hash_entry *hh, | |
c39a58e6 | 1496 | Elf_Internal_Sym *sym) |
30667bf3 | 1497 | { |
875c0872 | 1498 | if (hh != NULL) |
30667bf3 | 1499 | { |
875c0872 | 1500 | switch ((unsigned int) ELF32_R_TYPE (rela->r_info)) |
30667bf3 AM |
1501 | { |
1502 | case R_PARISC_GNU_VTINHERIT: | |
1503 | case R_PARISC_GNU_VTENTRY: | |
1504 | break; | |
1505 | ||
1506 | default: | |
875c0872 | 1507 | switch (hh->root.type) |
30667bf3 AM |
1508 | { |
1509 | case bfd_link_hash_defined: | |
1510 | case bfd_link_hash_defweak: | |
875c0872 | 1511 | return hh->root.u.def.section; |
30667bf3 AM |
1512 | |
1513 | case bfd_link_hash_common: | |
875c0872 | 1514 | return hh->root.u.c.p->section; |
30667bf3 AM |
1515 | |
1516 | default: | |
1517 | break; | |
1518 | } | |
1519 | } | |
1520 | } | |
1521 | else | |
1e2f5b6e | 1522 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
30667bf3 AM |
1523 | |
1524 | return NULL; | |
1525 | } | |
1526 | ||
30667bf3 AM |
1527 | /* Update the got and plt entry reference counts for the section being |
1528 | removed. */ | |
edd21aca | 1529 | |
b34976b6 | 1530 | static bfd_boolean |
c39a58e6 AM |
1531 | elf32_hppa_gc_sweep_hook (bfd *abfd, |
1532 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1533 | asection *sec, | |
1534 | const Elf_Internal_Rela *relocs) | |
edd21aca | 1535 | { |
30667bf3 | 1536 | Elf_Internal_Shdr *symtab_hdr; |
875c0872 | 1537 | struct elf_link_hash_entry **eh_syms; |
30667bf3 | 1538 | bfd_signed_vma *local_got_refcounts; |
74d1c347 | 1539 | bfd_signed_vma *local_plt_refcounts; |
875c0872 | 1540 | const Elf_Internal_Rela *rela, *relend; |
30667bf3 | 1541 | |
ec338859 | 1542 | elf_section_data (sec)->local_dynrel = NULL; |
98ceb8ce | 1543 | |
30667bf3 | 1544 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
875c0872 | 1545 | eh_syms = elf_sym_hashes (abfd); |
30667bf3 | 1546 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1547 | local_plt_refcounts = local_got_refcounts; |
1548 | if (local_plt_refcounts != NULL) | |
1549 | local_plt_refcounts += symtab_hdr->sh_info; | |
30667bf3 | 1550 | |
30667bf3 | 1551 | relend = relocs + sec->reloc_count; |
875c0872 | 1552 | for (rela = relocs; rela < relend; rela++) |
26e41594 AM |
1553 | { |
1554 | unsigned long r_symndx; | |
1555 | unsigned int r_type; | |
875c0872 | 1556 | struct elf_link_hash_entry *eh = NULL; |
26e41594 | 1557 | |
875c0872 | 1558 | r_symndx = ELF32_R_SYM (rela->r_info); |
26e41594 AM |
1559 | if (r_symndx >= symtab_hdr->sh_info) |
1560 | { | |
875c0872 DA |
1561 | struct elf32_hppa_link_hash_entry *hh; |
1562 | struct elf32_hppa_dyn_reloc_entry **hdh_pp; | |
1563 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
26e41594 | 1564 | |
875c0872 DA |
1565 | eh = eh_syms[r_symndx - symtab_hdr->sh_info]; |
1566 | while (eh->root.type == bfd_link_hash_indirect | |
1567 | || eh->root.type == bfd_link_hash_warning) | |
1568 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
1569 | hh = hppa_elf_hash_entry (eh); | |
26e41594 | 1570 | |
a63e02c7 | 1571 | for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next) |
875c0872 | 1572 | if (hdh_p->sec == sec) |
26e41594 AM |
1573 | { |
1574 | /* Everything must go for SEC. */ | |
a63e02c7 | 1575 | *hdh_pp = hdh_p->hdh_next; |
26e41594 AM |
1576 | break; |
1577 | } | |
1578 | } | |
1579 | ||
875c0872 | 1580 | r_type = ELF32_R_TYPE (rela->r_info); |
26e41594 AM |
1581 | switch (r_type) |
1582 | { | |
1583 | case R_PARISC_DLTIND14F: | |
1584 | case R_PARISC_DLTIND14R: | |
1585 | case R_PARISC_DLTIND21L: | |
875c0872 | 1586 | if (eh != NULL) |
26e41594 | 1587 | { |
875c0872 DA |
1588 | if (eh->got.refcount > 0) |
1589 | eh->got.refcount -= 1; | |
26e41594 AM |
1590 | } |
1591 | else if (local_got_refcounts != NULL) | |
1592 | { | |
1593 | if (local_got_refcounts[r_symndx] > 0) | |
1594 | local_got_refcounts[r_symndx] -= 1; | |
1595 | } | |
1596 | break; | |
98ceb8ce | 1597 | |
26e41594 AM |
1598 | case R_PARISC_PCREL12F: |
1599 | case R_PARISC_PCREL17C: | |
1600 | case R_PARISC_PCREL17F: | |
1601 | case R_PARISC_PCREL22F: | |
875c0872 | 1602 | if (eh != NULL) |
26e41594 | 1603 | { |
875c0872 DA |
1604 | if (eh->plt.refcount > 0) |
1605 | eh->plt.refcount -= 1; | |
26e41594 AM |
1606 | } |
1607 | break; | |
1608 | ||
1609 | case R_PARISC_PLABEL14R: | |
1610 | case R_PARISC_PLABEL21L: | |
1611 | case R_PARISC_PLABEL32: | |
875c0872 | 1612 | if (eh != NULL) |
26e41594 | 1613 | { |
875c0872 DA |
1614 | if (eh->plt.refcount > 0) |
1615 | eh->plt.refcount -= 1; | |
26e41594 AM |
1616 | } |
1617 | else if (local_plt_refcounts != NULL) | |
1618 | { | |
1619 | if (local_plt_refcounts[r_symndx] > 0) | |
1620 | local_plt_refcounts[r_symndx] -= 1; | |
1621 | } | |
1622 | break; | |
1623 | ||
1624 | default: | |
1625 | break; | |
1626 | } | |
1627 | } | |
252b5132 | 1628 | |
b34976b6 | 1629 | return TRUE; |
252b5132 RH |
1630 | } |
1631 | ||
edfc032f AM |
1632 | /* Support for core dump NOTE sections. */ |
1633 | ||
1634 | static bfd_boolean | |
1635 | elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
1636 | { | |
1637 | int offset; | |
1638 | size_t size; | |
1639 | ||
1640 | switch (note->descsz) | |
1641 | { | |
1642 | default: | |
1643 | return FALSE; | |
1644 | ||
1645 | case 396: /* Linux/hppa */ | |
1646 | /* pr_cursig */ | |
1647 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
1648 | ||
1649 | /* pr_pid */ | |
1650 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
1651 | ||
1652 | /* pr_reg */ | |
1653 | offset = 72; | |
1654 | size = 320; | |
1655 | ||
1656 | break; | |
1657 | } | |
1658 | ||
1659 | /* Make a ".reg/999" section. */ | |
1660 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
1661 | size, note->descpos + offset); | |
1662 | } | |
1663 | ||
1664 | static bfd_boolean | |
1665 | elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
1666 | { | |
1667 | switch (note->descsz) | |
1668 | { | |
1669 | default: | |
1670 | return FALSE; | |
1671 | ||
1672 | case 124: /* Linux/hppa elf_prpsinfo. */ | |
1673 | elf_tdata (abfd)->core_program | |
1674 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
1675 | elf_tdata (abfd)->core_command | |
1676 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
1677 | } | |
1678 | ||
1679 | /* Note that for some reason, a spurious space is tacked | |
1680 | onto the end of the args in some (at least one anyway) | |
1681 | implementations, so strip it off if it exists. */ | |
1682 | { | |
1683 | char *command = elf_tdata (abfd)->core_command; | |
1684 | int n = strlen (command); | |
1685 | ||
1686 | if (0 < n && command[n - 1] == ' ') | |
1687 | command[n - 1] = '\0'; | |
1688 | } | |
1689 | ||
1690 | return TRUE; | |
1691 | } | |
1692 | ||
74d1c347 AM |
1693 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1694 | plabels. */ | |
1695 | ||
1696 | static void | |
c39a58e6 | 1697 | elf32_hppa_hide_symbol (struct bfd_link_info *info, |
875c0872 | 1698 | struct elf_link_hash_entry *eh, |
c39a58e6 | 1699 | bfd_boolean force_local) |
74d1c347 | 1700 | { |
e5094212 AM |
1701 | if (force_local) |
1702 | { | |
875c0872 DA |
1703 | eh->forced_local = 1; |
1704 | if (eh->dynindx != -1) | |
e5094212 | 1705 | { |
875c0872 | 1706 | eh->dynindx = -1; |
e5094212 | 1707 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, |
875c0872 | 1708 | eh->dynstr_index); |
e5094212 AM |
1709 | } |
1710 | } | |
1711 | ||
875c0872 | 1712 | if (! hppa_elf_hash_entry(eh)->plabel) |
74d1c347 | 1713 | { |
875c0872 DA |
1714 | eh->needs_plt = 0; |
1715 | eh->plt = elf_hash_table (info)->init_plt_refcount; | |
74d1c347 AM |
1716 | } |
1717 | } | |
1718 | ||
30667bf3 AM |
1719 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1720 | regular object. The current definition is in some section of the | |
1721 | dynamic object, but we're not including those sections. We have to | |
1722 | change the definition to something the rest of the link can | |
1723 | understand. */ | |
252b5132 | 1724 | |
b34976b6 | 1725 | static bfd_boolean |
c39a58e6 | 1726 | elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info, |
875c0872 | 1727 | struct elf_link_hash_entry *eh) |
252b5132 | 1728 | { |
83c81bfe | 1729 | struct elf32_hppa_link_hash_table *htab; |
875c0872 | 1730 | asection *sec; |
3ac8354b | 1731 | unsigned int power_of_two; |
30667bf3 AM |
1732 | |
1733 | /* If this is a function, put it in the procedure linkage table. We | |
067fa4a6 | 1734 | will fill in the contents of the procedure linkage table later. */ |
875c0872 DA |
1735 | if (eh->type == STT_FUNC |
1736 | || eh->needs_plt) | |
30667bf3 | 1737 | { |
875c0872 DA |
1738 | if (eh->plt.refcount <= 0 |
1739 | || (eh->def_regular | |
1740 | && eh->root.type != bfd_link_hash_defweak | |
1741 | && ! hppa_elf_hash_entry (eh)->plabel | |
30667bf3 AM |
1742 | && (!info->shared || info->symbolic))) |
1743 | { | |
1744 | /* The .plt entry is not needed when: | |
1745 | a) Garbage collection has removed all references to the | |
1746 | symbol, or | |
1747 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1748 | object, and it's not a weak definition, nor is the symbol |
1749 | used by a plabel relocation. Either this object is the | |
1750 | application or we are doing a shared symbolic link. */ | |
1751 | ||
875c0872 DA |
1752 | eh->plt.offset = (bfd_vma) -1; |
1753 | eh->needs_plt = 0; | |
30667bf3 | 1754 | } |
4dc86686 | 1755 | |
b34976b6 | 1756 | return TRUE; |
30667bf3 | 1757 | } |
bbd7ec4a | 1758 | else |
875c0872 | 1759 | eh->plt.offset = (bfd_vma) -1; |
edd21aca | 1760 | |
30667bf3 AM |
1761 | /* If this is a weak symbol, and there is a real definition, the |
1762 | processor independent code will have arranged for us to see the | |
1763 | real definition first, and we can just use the same value. */ | |
875c0872 | 1764 | if (eh->u.weakdef != NULL) |
edd21aca | 1765 | { |
875c0872 DA |
1766 | if (eh->u.weakdef->root.type != bfd_link_hash_defined |
1767 | && eh->u.weakdef->root.type != bfd_link_hash_defweak) | |
49e9d0d3 | 1768 | abort (); |
875c0872 DA |
1769 | eh->root.u.def.section = eh->u.weakdef->root.u.def.section; |
1770 | eh->root.u.def.value = eh->u.weakdef->root.u.def.value; | |
4fc8051d | 1771 | if (ELIMINATE_COPY_RELOCS) |
875c0872 | 1772 | eh->non_got_ref = eh->u.weakdef->non_got_ref; |
b34976b6 | 1773 | return TRUE; |
30667bf3 | 1774 | } |
edd21aca | 1775 | |
30667bf3 AM |
1776 | /* This is a reference to a symbol defined by a dynamic object which |
1777 | is not a function. */ | |
1778 | ||
1779 | /* If we are creating a shared library, we must presume that the | |
1780 | only references to the symbol are via the global offset table. | |
1781 | For such cases we need not do anything here; the relocations will | |
1782 | be handled correctly by relocate_section. */ | |
1783 | if (info->shared) | |
b34976b6 | 1784 | return TRUE; |
30667bf3 AM |
1785 | |
1786 | /* If there are no references to this symbol that do not use the | |
1787 | GOT, we don't need to generate a copy reloc. */ | |
875c0872 | 1788 | if (!eh->non_got_ref) |
b34976b6 | 1789 | return TRUE; |
30667bf3 | 1790 | |
4fc8051d | 1791 | if (ELIMINATE_COPY_RELOCS) |
ebe50bae | 1792 | { |
875c0872 DA |
1793 | struct elf32_hppa_link_hash_entry *hh; |
1794 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
ebe50bae | 1795 | |
875c0872 | 1796 | hh = hppa_elf_hash_entry (eh); |
a63e02c7 | 1797 | for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next) |
4fc8051d | 1798 | { |
875c0872 DA |
1799 | sec = hdh_p->sec->output_section; |
1800 | if (sec != NULL && (sec->flags & SEC_READONLY) != 0) | |
4fc8051d AM |
1801 | break; |
1802 | } | |
1803 | ||
1804 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1805 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
875c0872 | 1806 | if (hdh_p == NULL) |
4fc8051d | 1807 | { |
875c0872 | 1808 | eh->non_got_ref = 0; |
4fc8051d AM |
1809 | return TRUE; |
1810 | } | |
ebe50bae AM |
1811 | } |
1812 | ||
909272ee AM |
1813 | if (eh->size == 0) |
1814 | { | |
1815 | (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), | |
1816 | eh->root.root.string); | |
1817 | return TRUE; | |
1818 | } | |
1819 | ||
30667bf3 AM |
1820 | /* We must allocate the symbol in our .dynbss section, which will |
1821 | become part of the .bss section of the executable. There will be | |
1822 | an entry for this symbol in the .dynsym section. The dynamic | |
1823 | object will contain position independent code, so all references | |
1824 | from the dynamic object to this symbol will go through the global | |
1825 | offset table. The dynamic linker will use the .dynsym entry to | |
1826 | determine the address it must put in the global offset table, so | |
1827 | both the dynamic object and the regular object will refer to the | |
1828 | same memory location for the variable. */ | |
1829 | ||
3ac8354b | 1830 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1831 | |
1832 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1833 | copy the initial value out of the dynamic object and into the | |
3ac8354b | 1834 | runtime process image. */ |
875c0872 | 1835 | if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0) |
30667bf3 | 1836 | { |
eea6121a | 1837 | htab->srelbss->size += sizeof (Elf32_External_Rela); |
875c0872 | 1838 | eh->needs_copy = 1; |
edd21aca | 1839 | } |
252b5132 | 1840 | |
3ac8354b AM |
1841 | /* We need to figure out the alignment required for this symbol. I |
1842 | have no idea how other ELF linkers handle this. */ | |
30667bf3 | 1843 | |
875c0872 | 1844 | power_of_two = bfd_log2 (eh->size); |
3ac8354b AM |
1845 | if (power_of_two > 3) |
1846 | power_of_two = 3; | |
1847 | ||
1848 | /* Apply the required alignment. */ | |
875c0872 DA |
1849 | sec = htab->sdynbss; |
1850 | sec->size = BFD_ALIGN (sec->size, (bfd_size_type) (1 << power_of_two)); | |
a63e02c7 | 1851 | if (power_of_two > bfd_get_section_alignment (htab->etab.dynobj, sec)) |
3ac8354b | 1852 | { |
a63e02c7 | 1853 | if (! bfd_set_section_alignment (htab->etab.dynobj, sec, power_of_two)) |
b34976b6 | 1854 | return FALSE; |
3ac8354b | 1855 | } |
30667bf3 | 1856 | |
30667bf3 | 1857 | /* Define the symbol as being at this point in the section. */ |
875c0872 DA |
1858 | eh->root.u.def.section = sec; |
1859 | eh->root.u.def.value = sec->size; | |
edd21aca | 1860 | |
30667bf3 | 1861 | /* Increment the section size to make room for the symbol. */ |
875c0872 | 1862 | sec->size += eh->size; |
252b5132 | 1863 | |
b34976b6 | 1864 | return TRUE; |
252b5132 RH |
1865 | } |
1866 | ||
e5ee5df1 | 1867 | /* Allocate space in the .plt for entries that won't have relocations. |
a252afa4 | 1868 | ie. plabel entries. */ |
a8d02d66 | 1869 | |
b34976b6 | 1870 | static bfd_boolean |
875c0872 | 1871 | allocate_plt_static (struct elf_link_hash_entry *eh, void *inf) |
a8d02d66 AM |
1872 | { |
1873 | struct bfd_link_info *info; | |
1874 | struct elf32_hppa_link_hash_table *htab; | |
875c0872 DA |
1875 | struct elf32_hppa_link_hash_entry *hh; |
1876 | asection *sec; | |
a8d02d66 | 1877 | |
875c0872 | 1878 | if (eh->root.type == bfd_link_hash_indirect) |
b34976b6 | 1879 | return TRUE; |
a8d02d66 | 1880 | |
875c0872 DA |
1881 | if (eh->root.type == bfd_link_hash_warning) |
1882 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
e92d460e | 1883 | |
875c0872 DA |
1884 | info = (struct bfd_link_info *) inf; |
1885 | hh = hppa_elf_hash_entry(eh); | |
a8d02d66 | 1886 | htab = hppa_link_hash_table (info); |
a63e02c7 | 1887 | if (htab->etab.dynamic_sections_created |
875c0872 | 1888 | && eh->plt.refcount > 0) |
e5ee5df1 AM |
1889 | { |
1890 | /* Make sure this symbol is output as a dynamic symbol. | |
1891 | Undefined weak syms won't yet be marked as dynamic. */ | |
875c0872 DA |
1892 | if (eh->dynindx == -1 |
1893 | && !eh->forced_local | |
1894 | && eh->type != STT_PARISC_MILLI) | |
a8d02d66 | 1895 | { |
875c0872 | 1896 | if (! bfd_elf_link_record_dynamic_symbol (info, eh)) |
b34976b6 | 1897 | return FALSE; |
e5ee5df1 AM |
1898 | } |
1899 | ||
875c0872 | 1900 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh)) |
e5ee5df1 | 1901 | { |
067fa4a6 AM |
1902 | /* Allocate these later. From this point on, h->plabel |
1903 | means that the plt entry is only used by a plabel. | |
1904 | We'll be using a normal plt entry for this symbol, so | |
1905 | clear the plabel indicator. */ | |
875c0872 DA |
1906 | |
1907 | hh->plabel = 0; | |
e5ee5df1 | 1908 | } |
875c0872 | 1909 | else if (hh->plabel) |
e5ee5df1 AM |
1910 | { |
1911 | /* Make an entry in the .plt section for plabel references | |
1912 | that won't have a .plt entry for other reasons. */ | |
875c0872 DA |
1913 | sec = htab->splt; |
1914 | eh->plt.offset = sec->size; | |
1915 | sec->size += PLT_ENTRY_SIZE; | |
a8d02d66 AM |
1916 | } |
1917 | else | |
e5ee5df1 AM |
1918 | { |
1919 | /* No .plt entry needed. */ | |
875c0872 DA |
1920 | eh->plt.offset = (bfd_vma) -1; |
1921 | eh->needs_plt = 0; | |
e5ee5df1 AM |
1922 | } |
1923 | } | |
1924 | else | |
1925 | { | |
875c0872 DA |
1926 | eh->plt.offset = (bfd_vma) -1; |
1927 | eh->needs_plt = 0; | |
a8d02d66 AM |
1928 | } |
1929 | ||
b34976b6 | 1930 | return TRUE; |
a8d02d66 AM |
1931 | } |
1932 | ||
4dc86686 AM |
1933 | /* Allocate space in .plt, .got and associated reloc sections for |
1934 | global syms. */ | |
1935 | ||
b34976b6 | 1936 | static bfd_boolean |
875c0872 | 1937 | allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf) |
4dc86686 AM |
1938 | { |
1939 | struct bfd_link_info *info; | |
83c81bfe | 1940 | struct elf32_hppa_link_hash_table *htab; |
875c0872 DA |
1941 | asection *sec; |
1942 | struct elf32_hppa_link_hash_entry *hh; | |
1943 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
4dc86686 | 1944 | |
875c0872 | 1945 | if (eh->root.type == bfd_link_hash_indirect) |
b34976b6 | 1946 | return TRUE; |
73a74a62 | 1947 | |
875c0872 DA |
1948 | if (eh->root.type == bfd_link_hash_warning) |
1949 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
e92d460e | 1950 | |
c39a58e6 | 1951 | info = inf; |
83c81bfe | 1952 | htab = hppa_link_hash_table (info); |
875c0872 DA |
1953 | hh = hppa_elf_hash_entry (eh); |
1954 | ||
a63e02c7 | 1955 | if (htab->etab.dynamic_sections_created |
875c0872 DA |
1956 | && eh->plt.offset != (bfd_vma) -1 |
1957 | && !hh->plabel | |
1958 | && eh->plt.refcount > 0) | |
4dc86686 | 1959 | { |
e5ee5df1 | 1960 | /* Make an entry in the .plt section. */ |
875c0872 DA |
1961 | sec = htab->splt; |
1962 | eh->plt.offset = sec->size; | |
1963 | sec->size += PLT_ENTRY_SIZE; | |
3ac8354b | 1964 | |
e5ee5df1 | 1965 | /* We also need to make an entry in the .rela.plt section. */ |
eea6121a | 1966 | htab->srelplt->size += sizeof (Elf32_External_Rela); |
e5ee5df1 | 1967 | htab->need_plt_stub = 1; |
4dc86686 | 1968 | } |
edd21aca | 1969 | |
875c0872 | 1970 | if (eh->got.refcount > 0) |
4dc86686 | 1971 | { |
446f2863 AM |
1972 | /* Make sure this symbol is output as a dynamic symbol. |
1973 | Undefined weak syms won't yet be marked as dynamic. */ | |
875c0872 DA |
1974 | if (eh->dynindx == -1 |
1975 | && !eh->forced_local | |
1976 | && eh->type != STT_PARISC_MILLI) | |
446f2863 | 1977 | { |
875c0872 | 1978 | if (! bfd_elf_link_record_dynamic_symbol (info, eh)) |
b34976b6 | 1979 | return FALSE; |
446f2863 AM |
1980 | } |
1981 | ||
875c0872 DA |
1982 | sec = htab->sgot; |
1983 | eh->got.offset = sec->size; | |
1984 | sec->size += GOT_ENTRY_SIZE; | |
a63e02c7 | 1985 | if (htab->etab.dynamic_sections_created |
ce757d15 | 1986 | && (info->shared |
875c0872 DA |
1987 | || (eh->dynindx != -1 |
1988 | && !eh->forced_local))) | |
ce757d15 | 1989 | { |
eea6121a | 1990 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
ce757d15 | 1991 | } |
4dc86686 AM |
1992 | } |
1993 | else | |
875c0872 | 1994 | eh->got.offset = (bfd_vma) -1; |
30667bf3 | 1995 | |
875c0872 | 1996 | if (hh->dyn_relocs == NULL) |
b34976b6 | 1997 | return TRUE; |
30667bf3 | 1998 | |
98ceb8ce AM |
1999 | /* If this is a -Bsymbolic shared link, then we need to discard all |
2000 | space allocated for dynamic pc-relative relocs against symbols | |
2001 | defined in a regular object. For the normal shared case, discard | |
2002 | space for relocs that have become local due to symbol visibility | |
2003 | changes. */ | |
2004 | if (info->shared) | |
446f2863 | 2005 | { |
98ceb8ce | 2006 | #if RELATIVE_DYNRELOCS |
875c0872 | 2007 | if (SYMBOL_CALLS_LOCAL (info, eh)) |
446f2863 | 2008 | { |
875c0872 | 2009 | struct elf32_hppa_dyn_reloc_entry **hdh_pp; |
30667bf3 | 2010 | |
875c0872 | 2011 | for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; ) |
98ceb8ce | 2012 | { |
875c0872 DA |
2013 | hdh_p->count -= hdh_p->relative_count; |
2014 | hdh_p->relative_count = 0; | |
2015 | if (hdh_p->count == 0) | |
a63e02c7 | 2016 | *hdh_pp = hdh_p->hdh_next; |
98ceb8ce | 2017 | else |
a63e02c7 | 2018 | hdh_pp = &hdh_p->hdh_next; |
98ceb8ce AM |
2019 | } |
2020 | } | |
2021 | #endif | |
4fc8051d AM |
2022 | |
2023 | /* Also discard relocs on undefined weak syms with non-default | |
2024 | visibility. */ | |
22d606e9 | 2025 | if (hh->dyn_relocs != NULL |
875c0872 | 2026 | && eh->root.type == bfd_link_hash_undefweak) |
22d606e9 AM |
2027 | { |
2028 | if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT) | |
2029 | hh->dyn_relocs = NULL; | |
2030 | ||
2031 | /* Make sure undefined weak symbols are output as a dynamic | |
2032 | symbol in PIEs. */ | |
2033 | else if (eh->dynindx == -1 | |
2034 | && !eh->forced_local) | |
2035 | { | |
2036 | if (! bfd_elf_link_record_dynamic_symbol (info, eh)) | |
2037 | return FALSE; | |
2038 | } | |
2039 | } | |
446f2863 | 2040 | } |
98ceb8ce | 2041 | else |
30667bf3 | 2042 | { |
98ceb8ce AM |
2043 | /* For the non-shared case, discard space for relocs against |
2044 | symbols which turn out to need copy relocs or are not | |
2045 | dynamic. */ | |
875c0872 DA |
2046 | |
2047 | if (!eh->non_got_ref | |
4fc8051d | 2048 | && ((ELIMINATE_COPY_RELOCS |
875c0872 DA |
2049 | && eh->def_dynamic |
2050 | && !eh->def_regular) | |
a63e02c7 | 2051 | || (htab->etab.dynamic_sections_created |
875c0872 DA |
2052 | && (eh->root.type == bfd_link_hash_undefweak |
2053 | || eh->root.type == bfd_link_hash_undefined)))) | |
98ceb8ce AM |
2054 | { |
2055 | /* Make sure this symbol is output as a dynamic symbol. | |
2056 | Undefined weak syms won't yet be marked as dynamic. */ | |
875c0872 DA |
2057 | if (eh->dynindx == -1 |
2058 | && !eh->forced_local | |
2059 | && eh->type != STT_PARISC_MILLI) | |
98ceb8ce | 2060 | { |
875c0872 | 2061 | if (! bfd_elf_link_record_dynamic_symbol (info, eh)) |
b34976b6 | 2062 | return FALSE; |
98ceb8ce AM |
2063 | } |
2064 | ||
2065 | /* If that succeeded, we know we'll be keeping all the | |
2066 | relocs. */ | |
875c0872 | 2067 | if (eh->dynindx != -1) |
98ceb8ce AM |
2068 | goto keep; |
2069 | } | |
446f2863 | 2070 | |
875c0872 | 2071 | hh->dyn_relocs = NULL; |
b34976b6 | 2072 | return TRUE; |
98ceb8ce | 2073 | |
ec338859 | 2074 | keep: ; |
30667bf3 | 2075 | } |
30667bf3 | 2076 | |
98ceb8ce | 2077 | /* Finally, allocate space. */ |
a63e02c7 | 2078 | for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next) |
30667bf3 | 2079 | { |
875c0872 DA |
2080 | asection *sreloc = elf_section_data (hdh_p->sec)->sreloc; |
2081 | sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2082 | } |
30667bf3 | 2083 | |
b34976b6 | 2084 | return TRUE; |
30667bf3 | 2085 | } |
30667bf3 | 2086 | |
d5c73c2f AM |
2087 | /* This function is called via elf_link_hash_traverse to force |
2088 | millicode symbols local so they do not end up as globals in the | |
2089 | dynamic symbol table. We ought to be able to do this in | |
2090 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2091 | for all dynamic symbols. Arguably, this is a bug in | |
2092 | elf_adjust_dynamic_symbol. */ | |
2093 | ||
b34976b6 | 2094 | static bfd_boolean |
875c0872 | 2095 | clobber_millicode_symbols (struct elf_link_hash_entry *eh, |
c39a58e6 | 2096 | struct bfd_link_info *info) |
d5c73c2f | 2097 | { |
875c0872 DA |
2098 | if (eh->root.type == bfd_link_hash_warning) |
2099 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
e92d460e | 2100 | |
875c0872 DA |
2101 | if (eh->type == STT_PARISC_MILLI |
2102 | && !eh->forced_local) | |
e0522e89 | 2103 | { |
875c0872 | 2104 | elf32_hppa_hide_symbol (info, eh, TRUE); |
e0522e89 | 2105 | } |
b34976b6 | 2106 | return TRUE; |
d5c73c2f AM |
2107 | } |
2108 | ||
98ceb8ce AM |
2109 | /* Find any dynamic relocs that apply to read-only sections. */ |
2110 | ||
b34976b6 | 2111 | static bfd_boolean |
875c0872 | 2112 | readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf) |
98ceb8ce | 2113 | { |
875c0872 DA |
2114 | struct elf32_hppa_link_hash_entry *hh; |
2115 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
98ceb8ce | 2116 | |
875c0872 DA |
2117 | if (eh->root.type == bfd_link_hash_warning) |
2118 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
e92d460e | 2119 | |
875c0872 | 2120 | hh = hppa_elf_hash_entry (eh); |
a63e02c7 | 2121 | for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next) |
98ceb8ce | 2122 | { |
875c0872 | 2123 | asection *sec = hdh_p->sec->output_section; |
98ceb8ce | 2124 | |
875c0872 | 2125 | if (sec != NULL && (sec->flags & SEC_READONLY) != 0) |
98ceb8ce | 2126 | { |
c39a58e6 | 2127 | struct bfd_link_info *info = inf; |
98ceb8ce AM |
2128 | |
2129 | info->flags |= DF_TEXTREL; | |
2130 | ||
2131 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 2132 | return FALSE; |
98ceb8ce AM |
2133 | } |
2134 | } | |
b34976b6 | 2135 | return TRUE; |
98ceb8ce AM |
2136 | } |
2137 | ||
30667bf3 AM |
2138 | /* Set the sizes of the dynamic sections. */ |
2139 | ||
b34976b6 | 2140 | static bfd_boolean |
c39a58e6 AM |
2141 | elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
2142 | struct bfd_link_info *info) | |
30667bf3 | 2143 | { |
83c81bfe | 2144 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2145 | bfd *dynobj; |
98ceb8ce | 2146 | bfd *ibfd; |
875c0872 | 2147 | asection *sec; |
b34976b6 | 2148 | bfd_boolean relocs; |
30667bf3 | 2149 | |
83c81bfe | 2150 | htab = hppa_link_hash_table (info); |
a63e02c7 | 2151 | dynobj = htab->etab.dynobj; |
49e9d0d3 AM |
2152 | if (dynobj == NULL) |
2153 | abort (); | |
30667bf3 | 2154 | |
a63e02c7 | 2155 | if (htab->etab.dynamic_sections_created) |
30667bf3 AM |
2156 | { |
2157 | /* Set the contents of the .interp section to the interpreter. */ | |
893c4fe2 | 2158 | if (info->executable) |
30667bf3 | 2159 | { |
875c0872 DA |
2160 | sec = bfd_get_section_by_name (dynobj, ".interp"); |
2161 | if (sec == NULL) | |
49e9d0d3 | 2162 | abort (); |
875c0872 DA |
2163 | sec->size = sizeof ELF_DYNAMIC_INTERPRETER; |
2164 | sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
30667bf3 | 2165 | } |
74d1c347 | 2166 | |
d5c73c2f | 2167 | /* Force millicode symbols local. */ |
a63e02c7 | 2168 | elf_link_hash_traverse (&htab->etab, |
d5c73c2f AM |
2169 | clobber_millicode_symbols, |
2170 | info); | |
68fb2e56 | 2171 | } |
d5c73c2f | 2172 | |
98ceb8ce AM |
2173 | /* Set up .got and .plt offsets for local syms, and space for local |
2174 | dynamic relocs. */ | |
2175 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
68fb2e56 AM |
2176 | { |
2177 | bfd_signed_vma *local_got; | |
2178 | bfd_signed_vma *end_local_got; | |
2179 | bfd_signed_vma *local_plt; | |
2180 | bfd_signed_vma *end_local_plt; | |
2181 | bfd_size_type locsymcount; | |
2182 | Elf_Internal_Shdr *symtab_hdr; | |
2183 | asection *srel; | |
74d1c347 | 2184 | |
98ceb8ce | 2185 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2186 | continue; |
4dc86686 | 2187 | |
875c0872 | 2188 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
98ceb8ce | 2189 | { |
875c0872 | 2190 | struct elf32_hppa_dyn_reloc_entry *hdh_p; |
98ceb8ce | 2191 | |
875c0872 DA |
2192 | for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *) |
2193 | elf_section_data (sec)->local_dynrel); | |
2194 | hdh_p != NULL; | |
a63e02c7 | 2195 | hdh_p = hdh_p->hdh_next) |
98ceb8ce | 2196 | { |
875c0872 DA |
2197 | if (!bfd_is_abs_section (hdh_p->sec) |
2198 | && bfd_is_abs_section (hdh_p->sec->output_section)) | |
ec338859 AM |
2199 | { |
2200 | /* Input section has been discarded, either because | |
2201 | it is a copy of a linkonce section or due to | |
2202 | linker script /DISCARD/, so we'll be discarding | |
2203 | the relocs too. */ | |
2204 | } | |
875c0872 | 2205 | else if (hdh_p->count != 0) |
ec338859 | 2206 | { |
875c0872 DA |
2207 | srel = elf_section_data (hdh_p->sec)->sreloc; |
2208 | srel->size += hdh_p->count * sizeof (Elf32_External_Rela); | |
2209 | if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0) | |
248866a8 | 2210 | info->flags |= DF_TEXTREL; |
ec338859 | 2211 | } |
98ceb8ce AM |
2212 | } |
2213 | } | |
2214 | ||
2215 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2216 | if (!local_got) |
2217 | continue; | |
74d1c347 | 2218 | |
98ceb8ce | 2219 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2220 | locsymcount = symtab_hdr->sh_info; |
2221 | end_local_got = local_got + locsymcount; | |
875c0872 | 2222 | sec = htab->sgot; |
83c81bfe | 2223 | srel = htab->srelgot; |
68fb2e56 AM |
2224 | for (; local_got < end_local_got; ++local_got) |
2225 | { | |
2226 | if (*local_got > 0) | |
4dc86686 | 2227 | { |
875c0872 DA |
2228 | *local_got = sec->size; |
2229 | sec->size += GOT_ENTRY_SIZE; | |
2230 | if (info->shared) | |
eea6121a | 2231 | srel->size += sizeof (Elf32_External_Rela); |
4dc86686 | 2232 | } |
68fb2e56 AM |
2233 | else |
2234 | *local_got = (bfd_vma) -1; | |
2235 | } | |
74d1c347 | 2236 | |
68fb2e56 AM |
2237 | local_plt = end_local_got; |
2238 | end_local_plt = local_plt + locsymcount; | |
a63e02c7 | 2239 | if (! htab->etab.dynamic_sections_created) |
68fb2e56 AM |
2240 | { |
2241 | /* Won't be used, but be safe. */ | |
2242 | for (; local_plt < end_local_plt; ++local_plt) | |
2243 | *local_plt = (bfd_vma) -1; | |
2244 | } | |
2245 | else | |
2246 | { | |
875c0872 | 2247 | sec = htab->splt; |
83c81bfe | 2248 | srel = htab->srelplt; |
74d1c347 AM |
2249 | for (; local_plt < end_local_plt; ++local_plt) |
2250 | { | |
2251 | if (*local_plt > 0) | |
2252 | { | |
875c0872 DA |
2253 | *local_plt = sec->size; |
2254 | sec->size += PLT_ENTRY_SIZE; | |
74d1c347 | 2255 | if (info->shared) |
eea6121a | 2256 | srel->size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2257 | } |
2258 | else | |
2259 | *local_plt = (bfd_vma) -1; | |
2260 | } | |
2261 | } | |
30667bf3 | 2262 | } |
30667bf3 | 2263 | |
e5ee5df1 AM |
2264 | /* Do all the .plt entries without relocs first. The dynamic linker |
2265 | uses the last .plt reloc to find the end of the .plt (and hence | |
2266 | the start of the .got) for lazy linking. */ | |
a63e02c7 | 2267 | elf_link_hash_traverse (&htab->etab, allocate_plt_static, info); |
a8d02d66 | 2268 | |
98ceb8ce AM |
2269 | /* Allocate global sym .plt and .got entries, and space for global |
2270 | sym dynamic relocs. */ | |
a63e02c7 | 2271 | elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info); |
30667bf3 AM |
2272 | |
2273 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2274 | determined the sizes of the various dynamic sections. Allocate | |
2275 | memory for them. */ | |
b34976b6 | 2276 | relocs = FALSE; |
875c0872 | 2277 | for (sec = dynobj->sections; sec != NULL; sec = sec->next) |
30667bf3 | 2278 | { |
875c0872 | 2279 | if ((sec->flags & SEC_LINKER_CREATED) == 0) |
30667bf3 AM |
2280 | continue; |
2281 | ||
875c0872 | 2282 | if (sec == htab->splt) |
68fb2e56 | 2283 | { |
83c81bfe | 2284 | if (htab->need_plt_stub) |
68fb2e56 AM |
2285 | { |
2286 | /* Make space for the plt stub at the end of the .plt | |
2287 | section. We want this stub right at the end, up | |
2288 | against the .got section. */ | |
83c81bfe | 2289 | int gotalign = bfd_section_alignment (dynobj, htab->sgot); |
875c0872 | 2290 | int pltalign = bfd_section_alignment (dynobj, sec); |
68fb2e56 | 2291 | bfd_size_type mask; |
30667bf3 | 2292 | |
68fb2e56 | 2293 | if (gotalign > pltalign) |
875c0872 | 2294 | bfd_set_section_alignment (dynobj, sec, gotalign); |
68fb2e56 | 2295 | mask = ((bfd_size_type) 1 << gotalign) - 1; |
875c0872 | 2296 | sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask; |
68fb2e56 AM |
2297 | } |
2298 | } | |
c456f082 AM |
2299 | else if (sec == htab->sgot |
2300 | || sec == htab->sdynbss) | |
68fb2e56 | 2301 | ; |
875c0872 | 2302 | else if (strncmp (bfd_get_section_name (dynobj, sec), ".rela", 5) == 0) |
30667bf3 | 2303 | { |
875c0872 | 2304 | if (sec->size != 0) |
30667bf3 | 2305 | { |
4e12ff7f AM |
2306 | /* Remember whether there are any reloc sections other |
2307 | than .rela.plt. */ | |
875c0872 | 2308 | if (sec != htab->srelplt) |
b34976b6 | 2309 | relocs = TRUE; |
47d89dba | 2310 | |
30667bf3 AM |
2311 | /* We use the reloc_count field as a counter if we need |
2312 | to copy relocs into the output file. */ | |
875c0872 | 2313 | sec->reloc_count = 0; |
30667bf3 AM |
2314 | } |
2315 | } | |
30667bf3 AM |
2316 | else |
2317 | { | |
2318 | /* It's not one of our sections, so don't allocate space. */ | |
2319 | continue; | |
2320 | } | |
2321 | ||
875c0872 | 2322 | if (sec->size == 0) |
30667bf3 AM |
2323 | { |
2324 | /* If we don't need this section, strip it from the | |
2325 | output file. This is mostly to handle .rela.bss and | |
2326 | .rela.plt. We must create both sections in | |
2327 | create_dynamic_sections, because they must be created | |
2328 | before the linker maps input sections to output | |
2329 | sections. The linker does that before | |
2330 | adjust_dynamic_symbol is called, and it is that | |
2331 | function which decides whether anything needs to go | |
2332 | into these sections. */ | |
875c0872 | 2333 | sec->flags |= SEC_EXCLUDE; |
30667bf3 AM |
2334 | continue; |
2335 | } | |
2336 | ||
c456f082 AM |
2337 | if ((sec->flags & SEC_HAS_CONTENTS) == 0) |
2338 | continue; | |
2339 | ||
30667bf3 AM |
2340 | /* Allocate memory for the section contents. Zero it, because |
2341 | we may not fill in all the reloc sections. */ | |
875c0872 | 2342 | sec->contents = bfd_zalloc (dynobj, sec->size); |
c456f082 | 2343 | if (sec->contents == NULL) |
b34976b6 | 2344 | return FALSE; |
30667bf3 AM |
2345 | } |
2346 | ||
a63e02c7 | 2347 | if (htab->etab.dynamic_sections_created) |
30667bf3 AM |
2348 | { |
2349 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2350 | actually has nothing to do with the PLT, it is how we | |
2351 | communicate the LTP value of a load module to the dynamic | |
2352 | linker. */ | |
dc810e39 | 2353 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 2354 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 AM |
2355 | |
2356 | if (!add_dynamic_entry (DT_PLTGOT, 0)) | |
b34976b6 | 2357 | return FALSE; |
30667bf3 AM |
2358 | |
2359 | /* Add some entries to the .dynamic section. We fill in the | |
2360 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2361 | must add the entries now so that we get the correct size for | |
2362 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2363 | dynamic linker and used by the debugger. */ | |
3c27d551 | 2364 | if (info->executable) |
30667bf3 | 2365 | { |
dc810e39 | 2366 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 2367 | return FALSE; |
30667bf3 AM |
2368 | } |
2369 | ||
eea6121a | 2370 | if (htab->srelplt->size != 0) |
30667bf3 | 2371 | { |
dc810e39 AM |
2372 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
2373 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2374 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 2375 | return FALSE; |
30667bf3 AM |
2376 | } |
2377 | ||
2378 | if (relocs) | |
2379 | { | |
dc810e39 AM |
2380 | if (!add_dynamic_entry (DT_RELA, 0) |
2381 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2382 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 2383 | return FALSE; |
30667bf3 | 2384 | |
98ceb8ce AM |
2385 | /* If any dynamic relocs apply to a read-only section, |
2386 | then we need a DT_TEXTREL entry. */ | |
248866a8 | 2387 | if ((info->flags & DF_TEXTREL) == 0) |
a63e02c7 | 2388 | elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info); |
98ceb8ce AM |
2389 | |
2390 | if ((info->flags & DF_TEXTREL) != 0) | |
2391 | { | |
2392 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 2393 | return FALSE; |
98ceb8ce | 2394 | } |
30667bf3 AM |
2395 | } |
2396 | } | |
dc810e39 | 2397 | #undef add_dynamic_entry |
30667bf3 | 2398 | |
b34976b6 | 2399 | return TRUE; |
30667bf3 AM |
2400 | } |
2401 | ||
30667bf3 AM |
2402 | /* External entry points for sizing and building linker stubs. */ |
2403 | ||
b4655ea9 AM |
2404 | /* Set up various things so that we can make a list of input sections |
2405 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 2406 | 0 when no stubs will be needed, and 1 on success. */ |
30667bf3 | 2407 | |
b4655ea9 | 2408 | int |
c39a58e6 | 2409 | elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info) |
30667bf3 AM |
2410 | { |
2411 | bfd *input_bfd; | |
b4655ea9 AM |
2412 | unsigned int bfd_count; |
2413 | int top_id, top_index; | |
30667bf3 | 2414 | asection *section; |
25f72752 | 2415 | asection **input_list, **list; |
dc810e39 | 2416 | bfd_size_type amt; |
b4655ea9 | 2417 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
30667bf3 | 2418 | |
1badb539 AM |
2419 | /* Count the number of input BFDs and find the top input section id. */ |
2420 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2421 | input_bfd != NULL; |
2422 | input_bfd = input_bfd->link_next) | |
2423 | { | |
2424 | bfd_count += 1; | |
25f72752 AM |
2425 | for (section = input_bfd->sections; |
2426 | section != NULL; | |
2427 | section = section->next) | |
2428 | { | |
2429 | if (top_id < section->id) | |
2430 | top_id = section->id; | |
2431 | } | |
30667bf3 | 2432 | } |
b4655ea9 | 2433 | htab->bfd_count = bfd_count; |
30667bf3 | 2434 | |
dc810e39 | 2435 | amt = sizeof (struct map_stub) * (top_id + 1); |
c39a58e6 | 2436 | htab->stub_group = bfd_zmalloc (amt); |
83c81bfe | 2437 | if (htab->stub_group == NULL) |
b4655ea9 | 2438 | return -1; |
1badb539 | 2439 | |
b4655ea9 | 2440 | /* We can't use output_bfd->section_count here to find the top output |
1badb539 | 2441 | section index as some sections may have been removed, and |
8423293d | 2442 | strip_excluded_output_sections doesn't renumber the indices. */ |
1badb539 AM |
2443 | for (section = output_bfd->sections, top_index = 0; |
2444 | section != NULL; | |
2445 | section = section->next) | |
2446 | { | |
2447 | if (top_index < section->index) | |
2448 | top_index = section->index; | |
2449 | } | |
2450 | ||
b4655ea9 | 2451 | htab->top_index = top_index; |
dc810e39 | 2452 | amt = sizeof (asection *) * (top_index + 1); |
c39a58e6 | 2453 | input_list = bfd_malloc (amt); |
b4655ea9 | 2454 | htab->input_list = input_list; |
25f72752 | 2455 | if (input_list == NULL) |
b4655ea9 | 2456 | return -1; |
25f72752 | 2457 | |
1badb539 AM |
2458 | /* For sections we aren't interested in, mark their entries with a |
2459 | value we can check later. */ | |
2460 | list = input_list + top_index; | |
2461 | do | |
2462 | *list = bfd_abs_section_ptr; | |
2463 | while (list-- != input_list); | |
2464 | ||
2465 | for (section = output_bfd->sections; | |
2466 | section != NULL; | |
2467 | section = section->next) | |
2468 | { | |
47d89dba | 2469 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2470 | input_list[section->index] = NULL; |
2471 | } | |
2472 | ||
b4655ea9 AM |
2473 | return 1; |
2474 | } | |
2475 | ||
2476 | /* The linker repeatedly calls this function for each input section, | |
2477 | in the order that input sections are linked into output sections. | |
2478 | Build lists of input sections to determine groupings between which | |
2479 | we may insert linker stubs. */ | |
2480 | ||
2481 | void | |
c39a58e6 | 2482 | elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec) |
b4655ea9 AM |
2483 | { |
2484 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
2485 | ||
2486 | if (isec->output_section->index <= htab->top_index) | |
25f72752 | 2487 | { |
b4655ea9 AM |
2488 | asection **list = htab->input_list + isec->output_section->index; |
2489 | if (*list != bfd_abs_section_ptr) | |
25f72752 | 2490 | { |
b4655ea9 | 2491 | /* Steal the link_sec pointer for our list. */ |
83c81bfe | 2492 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
b4655ea9 AM |
2493 | /* This happens to make the list in reverse order, |
2494 | which is what we want. */ | |
2495 | PREV_SEC (isec) = *list; | |
2496 | *list = isec; | |
25f72752 AM |
2497 | } |
2498 | } | |
b4655ea9 | 2499 | } |
25f72752 | 2500 | |
b4655ea9 AM |
2501 | /* See whether we can group stub sections together. Grouping stub |
2502 | sections may result in fewer stubs. More importantly, we need to | |
2503 | put all .init* and .fini* stubs at the beginning of the .init or | |
2504 | .fini output sections respectively, because glibc splits the | |
2505 | _init and _fini functions into multiple parts. Putting a stub in | |
2506 | the middle of a function is not a good idea. */ | |
2507 | ||
2508 | static void | |
c39a58e6 AM |
2509 | group_sections (struct elf32_hppa_link_hash_table *htab, |
2510 | bfd_size_type stub_group_size, | |
2511 | bfd_boolean stubs_always_before_branch) | |
b4655ea9 AM |
2512 | { |
2513 | asection **list = htab->input_list + htab->top_index; | |
1badb539 | 2514 | do |
25f72752 AM |
2515 | { |
2516 | asection *tail = *list; | |
1badb539 AM |
2517 | if (tail == bfd_abs_section_ptr) |
2518 | continue; | |
25f72752 AM |
2519 | while (tail != NULL) |
2520 | { | |
2521 | asection *curr; | |
2522 | asection *prev; | |
2523 | bfd_size_type total; | |
00b28bb0 | 2524 | bfd_boolean big_sec; |
25f72752 AM |
2525 | |
2526 | curr = tail; | |
eea6121a | 2527 | total = tail->size; |
00b28bb0 AM |
2528 | big_sec = total >= stub_group_size; |
2529 | ||
25f72752 AM |
2530 | while ((prev = PREV_SEC (curr)) != NULL |
2531 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2532 | < stub_group_size)) |
25f72752 AM |
2533 | curr = prev; |
2534 | ||
2535 | /* OK, the size from the start of CURR to the end is less | |
a248e267 | 2536 | than 240000 bytes and thus can be handled by one stub |
25f72752 | 2537 | section. (or the tail section is itself larger than |
a248e267 | 2538 | 240000 bytes, in which case we may be toast.) |
25f72752 AM |
2539 | We should really be keeping track of the total size of |
2540 | stubs added here, as stubs contribute to the final output | |
2541 | section size. That's a little tricky, and this way will | |
a248e267 AM |
2542 | only break if stubs added total more than 22144 bytes, or |
2543 | 2768 long branch stubs. It seems unlikely for more than | |
2544 | 2768 different functions to be called, especially from | |
2545 | code only 240000 bytes long. This limit used to be | |
2546 | 250000, but c++ code tends to generate lots of little | |
2547 | functions, and sometimes violated the assumption. */ | |
25f72752 AM |
2548 | do |
2549 | { | |
2550 | prev = PREV_SEC (tail); | |
2551 | /* Set up this stub group. */ | |
83c81bfe | 2552 | htab->stub_group[tail->id].link_sec = curr; |
25f72752 AM |
2553 | } |
2554 | while (tail != curr && (tail = prev) != NULL); | |
2555 | ||
a248e267 | 2556 | /* But wait, there's more! Input sections up to 240000 |
00b28bb0 AM |
2557 | bytes before the stub section can be handled by it too. |
2558 | Don't do this if we have a really large section after the | |
2559 | stubs, as adding more stubs increases the chance that | |
2560 | branches may not reach into the stub section. */ | |
2561 | if (!stubs_always_before_branch && !big_sec) | |
25f72752 | 2562 | { |
47d89dba AM |
2563 | total = 0; |
2564 | while (prev != NULL | |
2565 | && ((total += tail->output_offset - prev->output_offset) | |
2566 | < stub_group_size)) | |
2567 | { | |
2568 | tail = prev; | |
2569 | prev = PREV_SEC (tail); | |
83c81bfe | 2570 | htab->stub_group[tail->id].link_sec = curr; |
47d89dba | 2571 | } |
25f72752 AM |
2572 | } |
2573 | tail = prev; | |
2574 | } | |
2575 | } | |
b4655ea9 AM |
2576 | while (list-- != htab->input_list); |
2577 | free (htab->input_list); | |
1badb539 | 2578 | #undef PREV_SEC |
b4655ea9 AM |
2579 | } |
2580 | ||
2581 | /* Read in all local syms for all input bfds, and create hash entries | |
2582 | for export stubs if we are building a multi-subspace shared lib. | |
2583 | Returns -1 on error, 1 if export stubs created, 0 otherwise. */ | |
2584 | ||
2585 | static int | |
c39a58e6 | 2586 | get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info) |
b4655ea9 AM |
2587 | { |
2588 | unsigned int bfd_indx; | |
2589 | Elf_Internal_Sym *local_syms, **all_local_syms; | |
2590 | int stub_changed = 0; | |
2591 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
30667bf3 AM |
2592 | |
2593 | /* We want to read in symbol extension records only once. To do this | |
2594 | we need to read in the local symbols in parallel and save them for | |
2595 | later use; so hold pointers to the local symbols in an array. */ | |
b4655ea9 | 2596 | bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count; |
c39a58e6 | 2597 | all_local_syms = bfd_zmalloc (amt); |
b4655ea9 | 2598 | htab->all_local_syms = all_local_syms; |
30667bf3 | 2599 | if (all_local_syms == NULL) |
b4655ea9 | 2600 | return -1; |
30667bf3 AM |
2601 | |
2602 | /* Walk over all the input BFDs, swapping in local symbols. | |
2603 | If we are creating a shared library, create hash entries for the | |
2604 | export stubs. */ | |
b4655ea9 | 2605 | for (bfd_indx = 0; |
30667bf3 | 2606 | input_bfd != NULL; |
25f72752 | 2607 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2608 | { |
2609 | Elf_Internal_Shdr *symtab_hdr; | |
edd21aca | 2610 | |
252b5132 RH |
2611 | /* We'll need the symbol table in a second. */ |
2612 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2613 | if (symtab_hdr->sh_info == 0) | |
2614 | continue; | |
2615 | ||
6cdc0ccc AM |
2616 | /* We need an array of the local symbols attached to the input bfd. */ |
2617 | local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
edd21aca | 2618 | if (local_syms == NULL) |
edd21aca | 2619 | { |
6cdc0ccc AM |
2620 | local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, |
2621 | symtab_hdr->sh_info, 0, | |
2622 | NULL, NULL, NULL); | |
2623 | /* Cache them for elf_link_input_bfd. */ | |
2624 | symtab_hdr->contents = (unsigned char *) local_syms; | |
edd21aca | 2625 | } |
6cdc0ccc AM |
2626 | if (local_syms == NULL) |
2627 | return -1; | |
edd21aca | 2628 | |
6cdc0ccc | 2629 | all_local_syms[bfd_indx] = local_syms; |
edd21aca | 2630 | |
83c81bfe | 2631 | if (info->shared && htab->multi_subspace) |
30667bf3 | 2632 | { |
875c0872 DA |
2633 | struct elf_link_hash_entry **eh_syms; |
2634 | struct elf_link_hash_entry **eh_symend; | |
30667bf3 AM |
2635 | unsigned int symcount; |
2636 | ||
2637 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2638 | - symtab_hdr->sh_info); | |
875c0872 DA |
2639 | eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd); |
2640 | eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount); | |
30667bf3 AM |
2641 | |
2642 | /* Look through the global syms for functions; We need to | |
2643 | build export stubs for all globally visible functions. */ | |
875c0872 | 2644 | for (; eh_syms < eh_symend; eh_syms++) |
30667bf3 | 2645 | { |
875c0872 | 2646 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 | 2647 | |
875c0872 | 2648 | hh = hppa_elf_hash_entry (*eh_syms); |
30667bf3 | 2649 | |
a63e02c7 DA |
2650 | while (hh->eh.root.type == bfd_link_hash_indirect |
2651 | || hh->eh.root.type == bfd_link_hash_warning) | |
2652 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
30667bf3 AM |
2653 | |
2654 | /* At this point in the link, undefined syms have been | |
2655 | resolved, so we need to check that the symbol was | |
2656 | defined in this BFD. */ | |
a63e02c7 DA |
2657 | if ((hh->eh.root.type == bfd_link_hash_defined |
2658 | || hh->eh.root.type == bfd_link_hash_defweak) | |
2659 | && hh->eh.type == STT_FUNC | |
2660 | && hh->eh.root.u.def.section->output_section != NULL | |
2661 | && (hh->eh.root.u.def.section->output_section->owner | |
25f72752 | 2662 | == output_bfd) |
a63e02c7 DA |
2663 | && hh->eh.root.u.def.section->owner == input_bfd |
2664 | && hh->eh.def_regular | |
2665 | && !hh->eh.forced_local | |
2666 | && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT) | |
30667bf3 AM |
2667 | { |
2668 | asection *sec; | |
2669 | const char *stub_name; | |
875c0872 | 2670 | struct elf32_hppa_stub_hash_entry *hsh; |
30667bf3 | 2671 | |
a63e02c7 DA |
2672 | sec = hh->eh.root.u.def.section; |
2673 | stub_name = hh->eh.root.root.string; | |
2674 | hsh = hppa_stub_hash_lookup (&htab->bstab, | |
30667bf3 | 2675 | stub_name, |
b34976b6 | 2676 | FALSE, FALSE); |
875c0872 | 2677 | if (hsh == NULL) |
30667bf3 | 2678 | { |
875c0872 DA |
2679 | hsh = hppa_add_stub (stub_name, sec, htab); |
2680 | if (!hsh) | |
b4655ea9 | 2681 | return -1; |
30667bf3 | 2682 | |
a63e02c7 DA |
2683 | hsh->target_value = hh->eh.root.u.def.value; |
2684 | hsh->target_section = hh->eh.root.u.def.section; | |
875c0872 | 2685 | hsh->stub_type = hppa_stub_export; |
a63e02c7 | 2686 | hsh->hh = hh; |
30667bf3 AM |
2687 | stub_changed = 1; |
2688 | } | |
2689 | else | |
2690 | { | |
d003868e AM |
2691 | (*_bfd_error_handler) (_("%B: duplicate export stub %s"), |
2692 | input_bfd, | |
8f615d07 | 2693 | stub_name); |
30667bf3 AM |
2694 | } |
2695 | } | |
2696 | } | |
30667bf3 AM |
2697 | } |
2698 | } | |
edd21aca | 2699 | |
b4655ea9 AM |
2700 | return stub_changed; |
2701 | } | |
2702 | ||
2703 | /* Determine and set the size of the stub section for a final link. | |
2704 | ||
2705 | The basic idea here is to examine all the relocations looking for | |
2706 | PC-relative calls to a target that is unreachable with a "bl" | |
2707 | instruction. */ | |
2708 | ||
b34976b6 | 2709 | bfd_boolean |
c39a58e6 AM |
2710 | elf32_hppa_size_stubs |
2711 | (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info, | |
2712 | bfd_boolean multi_subspace, bfd_signed_vma group_size, | |
2713 | asection * (*add_stub_section) (const char *, asection *), | |
2714 | void (*layout_sections_again) (void)) | |
b4655ea9 AM |
2715 | { |
2716 | bfd_size_type stub_group_size; | |
b34976b6 AM |
2717 | bfd_boolean stubs_always_before_branch; |
2718 | bfd_boolean stub_changed; | |
b4655ea9 AM |
2719 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
2720 | ||
2721 | /* Stash our params away. */ | |
2722 | htab->stub_bfd = stub_bfd; | |
2723 | htab->multi_subspace = multi_subspace; | |
2724 | htab->add_stub_section = add_stub_section; | |
2725 | htab->layout_sections_again = layout_sections_again; | |
2726 | stubs_always_before_branch = group_size < 0; | |
2727 | if (group_size < 0) | |
2728 | stub_group_size = -group_size; | |
2729 | else | |
2730 | stub_group_size = group_size; | |
2731 | if (stub_group_size == 1) | |
2732 | { | |
2733 | /* Default values. */ | |
acc990f2 AM |
2734 | if (stubs_always_before_branch) |
2735 | { | |
2736 | stub_group_size = 7680000; | |
2737 | if (htab->has_17bit_branch || htab->multi_subspace) | |
2738 | stub_group_size = 240000; | |
2739 | if (htab->has_12bit_branch) | |
2740 | stub_group_size = 7500; | |
2741 | } | |
2742 | else | |
2743 | { | |
2744 | stub_group_size = 6971392; | |
2745 | if (htab->has_17bit_branch || htab->multi_subspace) | |
2746 | stub_group_size = 217856; | |
2747 | if (htab->has_12bit_branch) | |
2748 | stub_group_size = 6808; | |
2749 | } | |
b4655ea9 AM |
2750 | } |
2751 | ||
2752 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
2753 | ||
2754 | switch (get_local_syms (output_bfd, info->input_bfds, info)) | |
2755 | { | |
2756 | default: | |
2757 | if (htab->all_local_syms) | |
2758 | goto error_ret_free_local; | |
b34976b6 | 2759 | return FALSE; |
b4655ea9 AM |
2760 | |
2761 | case 0: | |
b34976b6 | 2762 | stub_changed = FALSE; |
b4655ea9 AM |
2763 | break; |
2764 | ||
2765 | case 1: | |
b34976b6 | 2766 | stub_changed = TRUE; |
b4655ea9 AM |
2767 | break; |
2768 | } | |
2769 | ||
edd21aca AM |
2770 | while (1) |
2771 | { | |
b4655ea9 AM |
2772 | bfd *input_bfd; |
2773 | unsigned int bfd_indx; | |
30667bf3 AM |
2774 | asection *stub_sec; |
2775 | ||
25f72752 | 2776 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2777 | input_bfd != NULL; |
25f72752 | 2778 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2779 | { |
2780 | Elf_Internal_Shdr *symtab_hdr; | |
b4655ea9 AM |
2781 | asection *section; |
2782 | Elf_Internal_Sym *local_syms; | |
30667bf3 AM |
2783 | |
2784 | /* We'll need the symbol table in a second. */ | |
2785 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2786 | if (symtab_hdr->sh_info == 0) | |
2787 | continue; | |
2788 | ||
b4655ea9 | 2789 | local_syms = htab->all_local_syms[bfd_indx]; |
30667bf3 AM |
2790 | |
2791 | /* Walk over each section attached to the input bfd. */ | |
2792 | for (section = input_bfd->sections; | |
2793 | section != NULL; | |
25f72752 | 2794 | section = section->next) |
30667bf3 | 2795 | { |
30667bf3 AM |
2796 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
2797 | ||
2798 | /* If there aren't any relocs, then there's nothing more | |
2799 | to do. */ | |
2800 | if ((section->flags & SEC_RELOC) == 0 | |
2801 | || section->reloc_count == 0) | |
2802 | continue; | |
2803 | ||
25f72752 AM |
2804 | /* If this section is a link-once section that will be |
2805 | discarded, then don't create any stubs. */ | |
2806 | if (section->output_section == NULL | |
2807 | || section->output_section->owner != output_bfd) | |
2808 | continue; | |
2809 | ||
1e2f5b6e AM |
2810 | /* Get the relocs. */ |
2811 | internal_relocs | |
c39a58e6 | 2812 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
45d6a902 | 2813 | info->keep_memory); |
30667bf3 | 2814 | if (internal_relocs == NULL) |
1e2f5b6e | 2815 | goto error_ret_free_local; |
30667bf3 AM |
2816 | |
2817 | /* Now examine each relocation. */ | |
2818 | irela = internal_relocs; | |
2819 | irelaend = irela + section->reloc_count; | |
2820 | for (; irela < irelaend; irela++) | |
2821 | { | |
2822 | unsigned int r_type, r_indx; | |
2823 | enum elf32_hppa_stub_type stub_type; | |
875c0872 | 2824 | struct elf32_hppa_stub_hash_entry *hsh; |
30667bf3 AM |
2825 | asection *sym_sec; |
2826 | bfd_vma sym_value; | |
2827 | bfd_vma destination; | |
875c0872 | 2828 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 | 2829 | char *stub_name; |
25f72752 | 2830 | const asection *id_sec; |
30667bf3 AM |
2831 | |
2832 | r_type = ELF32_R_TYPE (irela->r_info); | |
2833 | r_indx = ELF32_R_SYM (irela->r_info); | |
2834 | ||
2835 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2836 | { | |
2837 | bfd_set_error (bfd_error_bad_value); | |
1e2f5b6e AM |
2838 | error_ret_free_internal: |
2839 | if (elf_section_data (section)->relocs == NULL) | |
2840 | free (internal_relocs); | |
2841 | goto error_ret_free_local; | |
30667bf3 AM |
2842 | } |
2843 | ||
2844 | /* Only look for stubs on call instructions. */ | |
2845 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
2846 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
2847 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
2848 | continue; | |
2849 | ||
2850 | /* Now determine the call target, its name, value, | |
2851 | section. */ | |
2852 | sym_sec = NULL; | |
2853 | sym_value = 0; | |
2854 | destination = 0; | |
875c0872 | 2855 | hh = NULL; |
30667bf3 AM |
2856 | if (r_indx < symtab_hdr->sh_info) |
2857 | { | |
2858 | /* It's a local symbol. */ | |
2859 | Elf_Internal_Sym *sym; | |
2860 | Elf_Internal_Shdr *hdr; | |
2861 | ||
2862 | sym = local_syms + r_indx; | |
2863 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
2864 | sym_sec = hdr->bfd_section; | |
2865 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
2866 | sym_value = sym->st_value; | |
2867 | destination = (sym_value + irela->r_addend | |
2868 | + sym_sec->output_offset | |
2869 | + sym_sec->output_section->vma); | |
2870 | } | |
2871 | else | |
2872 | { | |
2873 | /* It's an external symbol. */ | |
2874 | int e_indx; | |
2875 | ||
2876 | e_indx = r_indx - symtab_hdr->sh_info; | |
875c0872 | 2877 | hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]); |
30667bf3 | 2878 | |
a63e02c7 DA |
2879 | while (hh->eh.root.type == bfd_link_hash_indirect |
2880 | || hh->eh.root.type == bfd_link_hash_warning) | |
2881 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
30667bf3 | 2882 | |
a63e02c7 DA |
2883 | if (hh->eh.root.type == bfd_link_hash_defined |
2884 | || hh->eh.root.type == bfd_link_hash_defweak) | |
30667bf3 | 2885 | { |
a63e02c7 DA |
2886 | sym_sec = hh->eh.root.u.def.section; |
2887 | sym_value = hh->eh.root.u.def.value; | |
30667bf3 AM |
2888 | if (sym_sec->output_section != NULL) |
2889 | destination = (sym_value + irela->r_addend | |
2890 | + sym_sec->output_offset | |
2891 | + sym_sec->output_section->vma); | |
2892 | } | |
a63e02c7 | 2893 | else if (hh->eh.root.type == bfd_link_hash_undefweak) |
c432ba1a AM |
2894 | { |
2895 | if (! info->shared) | |
2896 | continue; | |
2897 | } | |
a63e02c7 | 2898 | else if (hh->eh.root.type == bfd_link_hash_undefined) |
c432ba1a | 2899 | { |
59c2e50f | 2900 | if (! (info->unresolved_syms_in_objects == RM_IGNORE |
a63e02c7 | 2901 | && (ELF_ST_VISIBILITY (hh->eh.other) |
c432ba1a | 2902 | == STV_DEFAULT) |
a63e02c7 | 2903 | && hh->eh.type != STT_PARISC_MILLI)) |
c432ba1a AM |
2904 | continue; |
2905 | } | |
30667bf3 AM |
2906 | else |
2907 | { | |
2908 | bfd_set_error (bfd_error_bad_value); | |
2909 | goto error_ret_free_internal; | |
2910 | } | |
2911 | } | |
2912 | ||
2913 | /* Determine what (if any) linker stub is needed. */ | |
875c0872 | 2914 | stub_type = hppa_type_of_stub (section, irela, hh, |
a252afa4 | 2915 | destination, info); |
30667bf3 AM |
2916 | if (stub_type == hppa_stub_none) |
2917 | continue; | |
2918 | ||
25f72752 | 2919 | /* Support for grouping stub sections. */ |
83c81bfe | 2920 | id_sec = htab->stub_group[section->id].link_sec; |
25f72752 | 2921 | |
30667bf3 | 2922 | /* Get the name of this stub. */ |
875c0872 | 2923 | stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela); |
30667bf3 AM |
2924 | if (!stub_name) |
2925 | goto error_ret_free_internal; | |
2926 | ||
a63e02c7 | 2927 | hsh = hppa_stub_hash_lookup (&htab->bstab, |
30667bf3 | 2928 | stub_name, |
b34976b6 | 2929 | FALSE, FALSE); |
875c0872 | 2930 | if (hsh != NULL) |
30667bf3 AM |
2931 | { |
2932 | /* The proper stub has already been created. */ | |
2933 | free (stub_name); | |
2934 | continue; | |
2935 | } | |
2936 | ||
875c0872 DA |
2937 | hsh = hppa_add_stub (stub_name, section, htab); |
2938 | if (hsh == NULL) | |
30667bf3 AM |
2939 | { |
2940 | free (stub_name); | |
1e2f5b6e | 2941 | goto error_ret_free_internal; |
30667bf3 AM |
2942 | } |
2943 | ||
875c0872 DA |
2944 | hsh->target_value = sym_value; |
2945 | hsh->target_section = sym_sec; | |
2946 | hsh->stub_type = stub_type; | |
30667bf3 AM |
2947 | if (info->shared) |
2948 | { | |
2949 | if (stub_type == hppa_stub_import) | |
875c0872 | 2950 | hsh->stub_type = hppa_stub_import_shared; |
98ceb8ce | 2951 | else if (stub_type == hppa_stub_long_branch) |
875c0872 | 2952 | hsh->stub_type = hppa_stub_long_branch_shared; |
30667bf3 | 2953 | } |
a63e02c7 | 2954 | hsh->hh = hh; |
b34976b6 | 2955 | stub_changed = TRUE; |
30667bf3 AM |
2956 | } |
2957 | ||
2958 | /* We're done with the internal relocs, free them. */ | |
1e2f5b6e AM |
2959 | if (elf_section_data (section)->relocs == NULL) |
2960 | free (internal_relocs); | |
30667bf3 AM |
2961 | } |
2962 | } | |
2963 | ||
2964 | if (!stub_changed) | |
2965 | break; | |
2966 | ||
2967 | /* OK, we've added some stubs. Find out the new size of the | |
2968 | stub sections. */ | |
83c81bfe | 2969 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
2970 | stub_sec != NULL; |
2971 | stub_sec = stub_sec->next) | |
eea6121a | 2972 | stub_sec->size = 0; |
74d1c347 | 2973 | |
a63e02c7 | 2974 | bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab); |
74d1c347 | 2975 | |
30667bf3 | 2976 | /* Ask the linker to do its stuff. */ |
83c81bfe | 2977 | (*htab->layout_sections_again) (); |
b34976b6 | 2978 | stub_changed = FALSE; |
30667bf3 AM |
2979 | } |
2980 | ||
6cdc0ccc | 2981 | free (htab->all_local_syms); |
b34976b6 | 2982 | return TRUE; |
30667bf3 AM |
2983 | |
2984 | error_ret_free_local: | |
b4655ea9 | 2985 | free (htab->all_local_syms); |
b34976b6 | 2986 | return FALSE; |
30667bf3 AM |
2987 | } |
2988 | ||
30667bf3 AM |
2989 | /* For a final link, this function is called after we have sized the |
2990 | stubs to provide a value for __gp. */ | |
2991 | ||
b34976b6 | 2992 | bfd_boolean |
c39a58e6 | 2993 | elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info) |
30667bf3 | 2994 | { |
b4655ea9 AM |
2995 | struct bfd_link_hash_entry *h; |
2996 | asection *sec = NULL; | |
2997 | bfd_vma gp_val = 0; | |
83c81bfe | 2998 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2999 | |
83c81bfe | 3000 | htab = hppa_link_hash_table (info); |
a63e02c7 | 3001 | h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE); |
30667bf3 | 3002 | |
df8634e3 | 3003 | if (h != NULL |
b4655ea9 AM |
3004 | && (h->type == bfd_link_hash_defined |
3005 | || h->type == bfd_link_hash_defweak)) | |
30667bf3 | 3006 | { |
b4655ea9 AM |
3007 | gp_val = h->u.def.value; |
3008 | sec = h->u.def.section; | |
30667bf3 AM |
3009 | } |
3010 | else | |
3011 | { | |
0eddce27 AM |
3012 | asection *splt = bfd_get_section_by_name (abfd, ".plt"); |
3013 | asection *sgot = bfd_get_section_by_name (abfd, ".got"); | |
b4655ea9 | 3014 | |
74d1c347 AM |
3015 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
3016 | or .data, if these sections exist. In the case of choosing | |
3017 | .plt try to make the LTP ideal for addressing anywhere in the | |
3018 | .plt or .got with a 14 bit signed offset. Typically, the end | |
3019 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
3020 | if either the .plt or .got is larger than 0x2000. If both | |
3021 | the .plt and .got are smaller than 0x2000, choose the end of | |
3022 | the .plt section. */ | |
225247f0 JT |
3023 | sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0 |
3024 | ? NULL : splt; | |
74d1c347 | 3025 | if (sec != NULL) |
30667bf3 | 3026 | { |
eea6121a AM |
3027 | gp_val = sec->size; |
3028 | if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000)) | |
74d1c347 AM |
3029 | { |
3030 | gp_val = 0x2000; | |
3031 | } | |
3032 | } | |
3033 | else | |
3034 | { | |
b4655ea9 | 3035 | sec = sgot; |
74d1c347 AM |
3036 | if (sec != NULL) |
3037 | { | |
225247f0 JT |
3038 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0) |
3039 | { | |
3040 | /* We know we don't have a .plt. If .got is large, | |
3041 | offset our LTP. */ | |
3042 | if (sec->size > 0x2000) | |
3043 | gp_val = 0x2000; | |
3044 | } | |
74d1c347 AM |
3045 | } |
3046 | else | |
3047 | { | |
3048 | /* No .plt or .got. Who cares what the LTP is? */ | |
3049 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3050 | } | |
30667bf3 | 3051 | } |
df8634e3 AM |
3052 | |
3053 | if (h != NULL) | |
3054 | { | |
b4655ea9 AM |
3055 | h->type = bfd_link_hash_defined; |
3056 | h->u.def.value = gp_val; | |
df8634e3 | 3057 | if (sec != NULL) |
b4655ea9 | 3058 | h->u.def.section = sec; |
df8634e3 | 3059 | else |
b4655ea9 | 3060 | h->u.def.section = bfd_abs_section_ptr; |
df8634e3 | 3061 | } |
30667bf3 AM |
3062 | } |
3063 | ||
b32b5d6e | 3064 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
3065 | gp_val += sec->output_section->vma + sec->output_offset; |
3066 | ||
3067 | elf_gp (abfd) = gp_val; | |
b34976b6 | 3068 | return TRUE; |
30667bf3 AM |
3069 | } |
3070 | ||
30667bf3 AM |
3071 | /* Build all the stubs associated with the current output file. The |
3072 | stubs are kept in a hash table attached to the main linker hash | |
3073 | table. We also set up the .plt entries for statically linked PIC | |
3074 | functions here. This function is called via hppaelf_finish in the | |
3075 | linker. */ | |
3076 | ||
b34976b6 | 3077 | bfd_boolean |
c39a58e6 | 3078 | elf32_hppa_build_stubs (struct bfd_link_info *info) |
30667bf3 AM |
3079 | { |
3080 | asection *stub_sec; | |
3081 | struct bfd_hash_table *table; | |
83c81bfe | 3082 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3083 | |
83c81bfe | 3084 | htab = hppa_link_hash_table (info); |
30667bf3 | 3085 | |
83c81bfe | 3086 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3087 | stub_sec != NULL; |
3088 | stub_sec = stub_sec->next) | |
3089 | { | |
dc810e39 | 3090 | bfd_size_type size; |
30667bf3 AM |
3091 | |
3092 | /* Allocate memory to hold the linker stubs. */ | |
eea6121a | 3093 | size = stub_sec->size; |
c39a58e6 | 3094 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); |
30667bf3 | 3095 | if (stub_sec->contents == NULL && size != 0) |
b34976b6 | 3096 | return FALSE; |
eea6121a | 3097 | stub_sec->size = 0; |
30667bf3 AM |
3098 | } |
3099 | ||
3100 | /* Build the stubs as directed by the stub hash table. */ | |
a63e02c7 | 3101 | table = &htab->bstab; |
30667bf3 AM |
3102 | bfd_hash_traverse (table, hppa_build_one_stub, info); |
3103 | ||
b34976b6 | 3104 | return TRUE; |
30667bf3 AM |
3105 | } |
3106 | ||
c46b7515 AM |
3107 | /* Perform a final link. */ |
3108 | ||
b34976b6 | 3109 | static bfd_boolean |
c39a58e6 | 3110 | elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info) |
c46b7515 | 3111 | { |
4dc86686 | 3112 | /* Invoke the regular ELF linker to do all the work. */ |
c152c796 | 3113 | if (!bfd_elf_final_link (abfd, info)) |
b34976b6 | 3114 | return FALSE; |
c46b7515 AM |
3115 | |
3116 | /* If we're producing a final executable, sort the contents of the | |
985142a4 | 3117 | unwind section. */ |
46fe4e66 | 3118 | return elf_hppa_sort_unwind (abfd); |
c46b7515 AM |
3119 | } |
3120 | ||
3121 | /* Record the lowest address for the data and text segments. */ | |
3122 | ||
3123 | static void | |
c39a58e6 AM |
3124 | hppa_record_segment_addr (bfd *abfd ATTRIBUTE_UNUSED, |
3125 | asection *section, | |
3126 | void *data) | |
c46b7515 | 3127 | { |
83c81bfe | 3128 | struct elf32_hppa_link_hash_table *htab; |
c46b7515 | 3129 | |
875c0872 | 3130 | htab = (struct elf32_hppa_link_hash_table*) data; |
c46b7515 AM |
3131 | |
3132 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3133 | { | |
3134 | bfd_vma value = section->vma - section->filepos; | |
3135 | ||
3136 | if ((section->flags & SEC_READONLY) != 0) | |
3137 | { | |
83c81bfe AM |
3138 | if (value < htab->text_segment_base) |
3139 | htab->text_segment_base = value; | |
c46b7515 AM |
3140 | } |
3141 | else | |
3142 | { | |
83c81bfe AM |
3143 | if (value < htab->data_segment_base) |
3144 | htab->data_segment_base = value; | |
c46b7515 AM |
3145 | } |
3146 | } | |
3147 | } | |
3148 | ||
30667bf3 AM |
3149 | /* Perform a relocation as part of a final link. */ |
3150 | ||
3151 | static bfd_reloc_status_type | |
c39a58e6 AM |
3152 | final_link_relocate (asection *input_section, |
3153 | bfd_byte *contents, | |
875c0872 | 3154 | const Elf_Internal_Rela *rela, |
c39a58e6 AM |
3155 | bfd_vma value, |
3156 | struct elf32_hppa_link_hash_table *htab, | |
3157 | asection *sym_sec, | |
875c0872 | 3158 | struct elf32_hppa_link_hash_entry *hh, |
a252afa4 | 3159 | struct bfd_link_info *info) |
30667bf3 AM |
3160 | { |
3161 | int insn; | |
875c0872 | 3162 | unsigned int r_type = ELF32_R_TYPE (rela->r_info); |
a252afa4 | 3163 | unsigned int orig_r_type = r_type; |
30667bf3 AM |
3164 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; |
3165 | int r_format = howto->bitsize; | |
3166 | enum hppa_reloc_field_selector_type_alt r_field; | |
3167 | bfd *input_bfd = input_section->owner; | |
875c0872 | 3168 | bfd_vma offset = rela->r_offset; |
30667bf3 AM |
3169 | bfd_vma max_branch_offset = 0; |
3170 | bfd_byte *hit_data = contents + offset; | |
875c0872 | 3171 | bfd_signed_vma addend = rela->r_addend; |
30667bf3 | 3172 | bfd_vma location; |
875c0872 DA |
3173 | struct elf32_hppa_stub_hash_entry *hsh = NULL; |
3174 | int val; | |
30667bf3 AM |
3175 | |
3176 | if (r_type == R_PARISC_NONE) | |
3177 | return bfd_reloc_ok; | |
3178 | ||
3179 | insn = bfd_get_32 (input_bfd, hit_data); | |
3180 | ||
3181 | /* Find out where we are and where we're going. */ | |
3182 | location = (offset + | |
3183 | input_section->output_offset + | |
3184 | input_section->output_section->vma); | |
3185 | ||
a252afa4 DA |
3186 | /* If we are not building a shared library, convert DLTIND relocs to |
3187 | DPREL relocs. */ | |
3188 | if (!info->shared) | |
3189 | { | |
3190 | switch (r_type) | |
4fc8051d AM |
3191 | { |
3192 | case R_PARISC_DLTIND21L: | |
3193 | r_type = R_PARISC_DPREL21L; | |
a252afa4 DA |
3194 | break; |
3195 | ||
4fc8051d AM |
3196 | case R_PARISC_DLTIND14R: |
3197 | r_type = R_PARISC_DPREL14R; | |
a252afa4 DA |
3198 | break; |
3199 | ||
4fc8051d AM |
3200 | case R_PARISC_DLTIND14F: |
3201 | r_type = R_PARISC_DPREL14F; | |
a252afa4 DA |
3202 | break; |
3203 | } | |
3204 | } | |
3205 | ||
30667bf3 AM |
3206 | switch (r_type) |
3207 | { | |
3208 | case R_PARISC_PCREL12F: | |
3209 | case R_PARISC_PCREL17F: | |
3210 | case R_PARISC_PCREL22F: | |
067fa4a6 AM |
3211 | /* If this call should go via the plt, find the import stub in |
3212 | the stub hash. */ | |
30667bf3 AM |
3213 | if (sym_sec == NULL |
3214 | || sym_sec->output_section == NULL | |
875c0872 | 3215 | || (hh != NULL |
a63e02c7 DA |
3216 | && hh->eh.plt.offset != (bfd_vma) -1 |
3217 | && hh->eh.dynindx != -1 | |
875c0872 | 3218 | && !hh->plabel |
a252afa4 | 3219 | && (info->shared |
a63e02c7 DA |
3220 | || !hh->eh.def_regular |
3221 | || hh->eh.root.type == bfd_link_hash_defweak))) | |
30667bf3 | 3222 | { |
875c0872 DA |
3223 | hsh = hppa_get_stub_entry (input_section, sym_sec, |
3224 | hh, rela, htab); | |
3225 | if (hsh != NULL) | |
30667bf3 | 3226 | { |
875c0872 DA |
3227 | value = (hsh->stub_offset |
3228 | + hsh->stub_sec->output_offset | |
3229 | + hsh->stub_sec->output_section->vma); | |
30667bf3 AM |
3230 | addend = 0; |
3231 | } | |
875c0872 | 3232 | else if (sym_sec == NULL && hh != NULL |
a63e02c7 | 3233 | && hh->eh.root.type == bfd_link_hash_undefweak) |
30667bf3 | 3234 | { |
db20fd76 AM |
3235 | /* It's OK if undefined weak. Calls to undefined weak |
3236 | symbols behave as if the "called" function | |
3237 | immediately returns. We can thus call to a weak | |
3238 | function without first checking whether the function | |
3239 | is defined. */ | |
30667bf3 | 3240 | value = location; |
db20fd76 | 3241 | addend = 8; |
30667bf3 AM |
3242 | } |
3243 | else | |
f09ebc7d | 3244 | return bfd_reloc_undefined; |
30667bf3 AM |
3245 | } |
3246 | /* Fall thru. */ | |
3247 | ||
3248 | case R_PARISC_PCREL21L: | |
3249 | case R_PARISC_PCREL17C: | |
3250 | case R_PARISC_PCREL17R: | |
3251 | case R_PARISC_PCREL14R: | |
3252 | case R_PARISC_PCREL14F: | |
36751eee | 3253 | case R_PARISC_PCREL32: |
30667bf3 AM |
3254 | /* Make it a pc relative offset. */ |
3255 | value -= location; | |
3256 | addend -= 8; | |
3257 | break; | |
3258 | ||
3259 | case R_PARISC_DPREL21L: | |
3260 | case R_PARISC_DPREL14R: | |
3261 | case R_PARISC_DPREL14F: | |
a252afa4 DA |
3262 | /* Convert instructions that use the linkage table pointer (r19) to |
3263 | instructions that use the global data pointer (dp). This is the | |
3264 | most efficient way of using PIC code in an incomplete executable, | |
3265 | but the user must follow the standard runtime conventions for | |
3266 | accessing data for this to work. */ | |
3267 | if (orig_r_type == R_PARISC_DLTIND21L) | |
3268 | { | |
3269 | /* Convert addil instructions if the original reloc was a | |
3270 | DLTIND21L. GCC sometimes uses a register other than r19 for | |
3271 | the operation, so we must convert any addil instruction | |
3272 | that uses this relocation. */ | |
3273 | if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26)) | |
3274 | insn = ADDIL_DP; | |
3275 | else | |
3276 | /* We must have a ldil instruction. It's too hard to find | |
3277 | and convert the associated add instruction, so issue an | |
3278 | error. */ | |
3279 | (*_bfd_error_handler) | |
d003868e AM |
3280 | (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"), |
3281 | input_bfd, | |
3282 | input_section, | |
875c0872 | 3283 | offset, |
a252afa4 DA |
3284 | howto->name, |
3285 | insn); | |
3286 | } | |
3287 | else if (orig_r_type == R_PARISC_DLTIND14F) | |
3288 | { | |
3289 | /* This must be a format 1 load/store. Change the base | |
3290 | register to dp. */ | |
3291 | insn = (insn & 0xfc1ffff) | (27 << 21); | |
3292 | } | |
3293 | ||
30667bf3 | 3294 | /* For all the DP relative relocations, we need to examine the symbol's |
95d0f04a DA |
3295 | section. If it has no section or if it's a code section, then |
3296 | "data pointer relative" makes no sense. In that case we don't | |
3297 | adjust the "value", and for 21 bit addil instructions, we change the | |
3298 | source addend register from %dp to %r0. This situation commonly | |
3299 | arises for undefined weak symbols and when a variable's "constness" | |
30667bf3 AM |
3300 | is declared differently from the way the variable is defined. For |
3301 | instance: "extern int foo" with foo defined as "const int foo". */ | |
95d0f04a | 3302 | if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0) |
30667bf3 AM |
3303 | { |
3304 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3305 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3306 | { | |
3307 | insn &= ~ (0x1f << 21); | |
30667bf3 AM |
3308 | } |
3309 | /* Now try to make things easy for the dynamic linker. */ | |
3310 | ||
3311 | break; | |
3312 | } | |
74d1c347 | 3313 | /* Fall thru. */ |
30667bf3 AM |
3314 | |
3315 | case R_PARISC_DLTIND21L: | |
3316 | case R_PARISC_DLTIND14R: | |
3317 | case R_PARISC_DLTIND14F: | |
3318 | value -= elf_gp (input_section->output_section->owner); | |
3319 | break; | |
3320 | ||
c46b7515 AM |
3321 | case R_PARISC_SEGREL32: |
3322 | if ((sym_sec->flags & SEC_CODE) != 0) | |
83c81bfe | 3323 | value -= htab->text_segment_base; |
c46b7515 | 3324 | else |
83c81bfe | 3325 | value -= htab->data_segment_base; |
c46b7515 AM |
3326 | break; |
3327 | ||
30667bf3 AM |
3328 | default: |
3329 | break; | |
3330 | } | |
3331 | ||
3332 | switch (r_type) | |
3333 | { | |
3334 | case R_PARISC_DIR32: | |
47d89dba | 3335 | case R_PARISC_DIR14F: |
30667bf3 AM |
3336 | case R_PARISC_DIR17F: |
3337 | case R_PARISC_PCREL17C: | |
3338 | case R_PARISC_PCREL14F: | |
36751eee | 3339 | case R_PARISC_PCREL32: |
30667bf3 AM |
3340 | case R_PARISC_DPREL14F: |
3341 | case R_PARISC_PLABEL32: | |
3342 | case R_PARISC_DLTIND14F: | |
3343 | case R_PARISC_SEGBASE: | |
3344 | case R_PARISC_SEGREL32: | |
3345 | r_field = e_fsel; | |
3346 | break; | |
3347 | ||
1bf42538 | 3348 | case R_PARISC_DLTIND21L: |
30667bf3 | 3349 | case R_PARISC_PCREL21L: |
30667bf3 | 3350 | case R_PARISC_PLABEL21L: |
1bf42538 JL |
3351 | r_field = e_lsel; |
3352 | break; | |
3353 | ||
3354 | case R_PARISC_DIR21L: | |
3355 | case R_PARISC_DPREL21L: | |
30667bf3 AM |
3356 | r_field = e_lrsel; |
3357 | break; | |
3358 | ||
30667bf3 | 3359 | case R_PARISC_PCREL17R: |
30667bf3 | 3360 | case R_PARISC_PCREL14R: |
30667bf3 AM |
3361 | case R_PARISC_PLABEL14R: |
3362 | case R_PARISC_DLTIND14R: | |
1bf42538 JL |
3363 | r_field = e_rsel; |
3364 | break; | |
3365 | ||
3366 | case R_PARISC_DIR17R: | |
3367 | case R_PARISC_DIR14R: | |
3368 | case R_PARISC_DPREL14R: | |
30667bf3 AM |
3369 | r_field = e_rrsel; |
3370 | break; | |
3371 | ||
3372 | case R_PARISC_PCREL12F: | |
3373 | case R_PARISC_PCREL17F: | |
3374 | case R_PARISC_PCREL22F: | |
3375 | r_field = e_fsel; | |
3376 | ||
3377 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3378 | { | |
3379 | max_branch_offset = (1 << (17-1)) << 2; | |
3380 | } | |
3381 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3382 | { | |
3383 | max_branch_offset = (1 << (12-1)) << 2; | |
3384 | } | |
3385 | else | |
3386 | { | |
3387 | max_branch_offset = (1 << (22-1)) << 2; | |
3388 | } | |
3389 | ||
3390 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3391 | undefined syms. We've already checked for a stub for the | |
3392 | shared undefined case. */ | |
3393 | if (sym_sec == NULL) | |
3394 | break; | |
3395 | ||
3396 | /* If the branch is out of reach, then redirect the | |
3397 | call to the local stub for this function. */ | |
3398 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3399 | { | |
875c0872 DA |
3400 | hsh = hppa_get_stub_entry (input_section, sym_sec, |
3401 | hh, rela, htab); | |
3402 | if (hsh == NULL) | |
f09ebc7d | 3403 | return bfd_reloc_undefined; |
30667bf3 AM |
3404 | |
3405 | /* Munge up the value and addend so that we call the stub | |
3406 | rather than the procedure directly. */ | |
875c0872 DA |
3407 | value = (hsh->stub_offset |
3408 | + hsh->stub_sec->output_offset | |
3409 | + hsh->stub_sec->output_section->vma | |
30667bf3 AM |
3410 | - location); |
3411 | addend = -8; | |
3412 | } | |
3413 | break; | |
3414 | ||
3415 | /* Something we don't know how to handle. */ | |
3416 | default: | |
3417 | return bfd_reloc_notsupported; | |
3418 | } | |
3419 | ||
3420 | /* Make sure we can reach the stub. */ | |
3421 | if (max_branch_offset != 0 | |
3422 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3423 | { | |
3424 | (*_bfd_error_handler) | |
d003868e AM |
3425 | (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
3426 | input_bfd, | |
3427 | input_section, | |
875c0872 | 3428 | offset, |
a63e02c7 | 3429 | hsh->bh_root.string); |
ce757d15 | 3430 | bfd_set_error (bfd_error_bad_value); |
30667bf3 AM |
3431 | return bfd_reloc_notsupported; |
3432 | } | |
3433 | ||
3434 | val = hppa_field_adjust (value, addend, r_field); | |
3435 | ||
3436 | switch (r_type) | |
3437 | { | |
3438 | case R_PARISC_PCREL12F: | |
3439 | case R_PARISC_PCREL17C: | |
3440 | case R_PARISC_PCREL17F: | |
3441 | case R_PARISC_PCREL17R: | |
3442 | case R_PARISC_PCREL22F: | |
3443 | case R_PARISC_DIR17F: | |
3444 | case R_PARISC_DIR17R: | |
3445 | /* This is a branch. Divide the offset by four. | |
3446 | Note that we need to decide whether it's a branch or | |
3447 | otherwise by inspecting the reloc. Inspecting insn won't | |
3448 | work as insn might be from a .word directive. */ | |
3449 | val >>= 2; | |
3450 | break; | |
3451 | ||
3452 | default: | |
3453 | break; | |
3454 | } | |
3455 | ||
3456 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3457 | ||
3458 | /* Update the instruction word. */ | |
74d1c347 | 3459 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3460 | return bfd_reloc_ok; |
3461 | } | |
3462 | ||
30667bf3 AM |
3463 | /* Relocate an HPPA ELF section. */ |
3464 | ||
b34976b6 | 3465 | static bfd_boolean |
c39a58e6 AM |
3466 | elf32_hppa_relocate_section (bfd *output_bfd, |
3467 | struct bfd_link_info *info, | |
3468 | bfd *input_bfd, | |
3469 | asection *input_section, | |
3470 | bfd_byte *contents, | |
3471 | Elf_Internal_Rela *relocs, | |
3472 | Elf_Internal_Sym *local_syms, | |
3473 | asection **local_sections) | |
30667bf3 | 3474 | { |
30667bf3 | 3475 | bfd_vma *local_got_offsets; |
83c81bfe | 3476 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3477 | Elf_Internal_Shdr *symtab_hdr; |
875c0872 | 3478 | Elf_Internal_Rela *rela; |
30667bf3 | 3479 | Elf_Internal_Rela *relend; |
30667bf3 | 3480 | |
1049f94e | 3481 | if (info->relocatable) |
b34976b6 | 3482 | return TRUE; |
f0fe0e16 | 3483 | |
30667bf3 AM |
3484 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
3485 | ||
83c81bfe | 3486 | htab = hppa_link_hash_table (info); |
74d1c347 | 3487 | local_got_offsets = elf_local_got_offsets (input_bfd); |
30667bf3 | 3488 | |
875c0872 | 3489 | rela = relocs; |
30667bf3 | 3490 | relend = relocs + input_section->reloc_count; |
875c0872 | 3491 | for (; rela < relend; rela++) |
30667bf3 AM |
3492 | { |
3493 | unsigned int r_type; | |
3494 | reloc_howto_type *howto; | |
3495 | unsigned int r_symndx; | |
875c0872 | 3496 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 AM |
3497 | Elf_Internal_Sym *sym; |
3498 | asection *sym_sec; | |
3499 | bfd_vma relocation; | |
875c0872 | 3500 | bfd_reloc_status_type rstatus; |
30667bf3 | 3501 | const char *sym_name; |
b34976b6 AM |
3502 | bfd_boolean plabel; |
3503 | bfd_boolean warned_undef; | |
30667bf3 | 3504 | |
875c0872 | 3505 | r_type = ELF32_R_TYPE (rela->r_info); |
30667bf3 AM |
3506 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) |
3507 | { | |
3508 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3509 | return FALSE; |
30667bf3 AM |
3510 | } |
3511 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3512 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3513 | continue; | |
3514 | ||
30667bf3 | 3515 | /* This is a final link. */ |
875c0872 DA |
3516 | r_symndx = ELF32_R_SYM (rela->r_info); |
3517 | hh = NULL; | |
30667bf3 AM |
3518 | sym = NULL; |
3519 | sym_sec = NULL; | |
b34976b6 | 3520 | warned_undef = FALSE; |
30667bf3 AM |
3521 | if (r_symndx < symtab_hdr->sh_info) |
3522 | { | |
3523 | /* This is a local symbol, h defaults to NULL. */ | |
3524 | sym = local_syms + r_symndx; | |
3525 | sym_sec = local_sections[r_symndx]; | |
875c0872 | 3526 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela); |
30667bf3 AM |
3527 | } |
3528 | else | |
3529 | { | |
875c0872 | 3530 | struct elf_link_hash_entry *eh; |
560e09e9 | 3531 | bfd_boolean unresolved_reloc; |
b2a8e766 | 3532 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); |
560e09e9 | 3533 | |
875c0872 | 3534 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela, |
b2a8e766 | 3535 | r_symndx, symtab_hdr, sym_hashes, |
875c0872 | 3536 | eh, sym_sec, relocation, |
b2a8e766 | 3537 | unresolved_reloc, warned_undef); |
560e09e9 NC |
3538 | |
3539 | if (relocation == 0 | |
875c0872 DA |
3540 | && eh->root.type != bfd_link_hash_defined |
3541 | && eh->root.type != bfd_link_hash_defweak | |
3542 | && eh->root.type != bfd_link_hash_undefweak) | |
4fc8051d | 3543 | { |
59c2e50f | 3544 | if (info->unresolved_syms_in_objects == RM_IGNORE |
875c0872 DA |
3545 | && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT |
3546 | && eh->type == STT_PARISC_MILLI) | |
560e09e9 NC |
3547 | { |
3548 | if (! info->callbacks->undefined_symbol | |
875c0872 DA |
3549 | (info, eh->root.root.string, input_bfd, |
3550 | input_section, rela->r_offset, FALSE)) | |
560e09e9 NC |
3551 | return FALSE; |
3552 | warned_undef = TRUE; | |
3553 | } | |
30667bf3 | 3554 | } |
875c0872 | 3555 | hh = hppa_elf_hash_entry (eh); |
30667bf3 AM |
3556 | } |
3557 | ||
3558 | /* Do any required modifications to the relocation value, and | |
25f72752 AM |
3559 | determine what types of dynamic info we need to output, if |
3560 | any. */ | |
74d1c347 | 3561 | plabel = 0; |
30667bf3 AM |
3562 | switch (r_type) |
3563 | { | |
3564 | case R_PARISC_DLTIND14F: | |
3565 | case R_PARISC_DLTIND14R: | |
3566 | case R_PARISC_DLTIND21L: | |
ce757d15 AM |
3567 | { |
3568 | bfd_vma off; | |
b34976b6 | 3569 | bfd_boolean do_got = 0; |
ce757d15 AM |
3570 | |
3571 | /* Relocation is to the entry for this symbol in the | |
3572 | global offset table. */ | |
875c0872 | 3573 | if (hh != NULL) |
ce757d15 | 3574 | { |
b34976b6 | 3575 | bfd_boolean dyn; |
ce757d15 | 3576 | |
a63e02c7 DA |
3577 | off = hh->eh.got.offset; |
3578 | dyn = htab->etab.dynamic_sections_created; | |
c152c796 | 3579 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, |
a63e02c7 | 3580 | &hh->eh)) |
ce757d15 AM |
3581 | { |
3582 | /* If we aren't going to call finish_dynamic_symbol, | |
3583 | then we need to handle initialisation of the .got | |
3584 | entry and create needed relocs here. Since the | |
3585 | offset must always be a multiple of 4, we use the | |
3586 | least significant bit to record whether we have | |
3587 | initialised it already. */ | |
3588 | if ((off & 1) != 0) | |
3589 | off &= ~1; | |
3590 | else | |
3591 | { | |
a63e02c7 | 3592 | hh->eh.got.offset |= 1; |
ce757d15 AM |
3593 | do_got = 1; |
3594 | } | |
3595 | } | |
3596 | } | |
3597 | else | |
3598 | { | |
3599 | /* Local symbol case. */ | |
3600 | if (local_got_offsets == NULL) | |
3601 | abort (); | |
3602 | ||
3603 | off = local_got_offsets[r_symndx]; | |
3604 | ||
3605 | /* The offset must always be a multiple of 4. We use | |
3606 | the least significant bit to record whether we have | |
3607 | already generated the necessary reloc. */ | |
3608 | if ((off & 1) != 0) | |
3609 | off &= ~1; | |
3610 | else | |
3611 | { | |
3612 | local_got_offsets[r_symndx] |= 1; | |
3613 | do_got = 1; | |
3614 | } | |
3615 | } | |
68fb2e56 | 3616 | |
ce757d15 AM |
3617 | if (do_got) |
3618 | { | |
3619 | if (info->shared) | |
3620 | { | |
3621 | /* Output a dynamic relocation for this GOT entry. | |
3622 | In this case it is relative to the base of the | |
3623 | object because the symbol index is zero. */ | |
3624 | Elf_Internal_Rela outrel; | |
947216bf | 3625 | bfd_byte *loc; |
875c0872 | 3626 | asection *sec = htab->srelgot; |
ce757d15 AM |
3627 | |
3628 | outrel.r_offset = (off | |
3629 | + htab->sgot->output_offset | |
3630 | + htab->sgot->output_section->vma); | |
3631 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); | |
3632 | outrel.r_addend = relocation; | |
875c0872 DA |
3633 | loc = sec->contents; |
3634 | loc += sec->reloc_count++ * sizeof (Elf32_External_Rela); | |
ce757d15 AM |
3635 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
3636 | } | |
3637 | else | |
30667bf3 | 3638 | bfd_put_32 (output_bfd, relocation, |
83c81bfe | 3639 | htab->sgot->contents + off); |
ce757d15 | 3640 | } |
30667bf3 | 3641 | |
ce757d15 AM |
3642 | if (off >= (bfd_vma) -2) |
3643 | abort (); | |
30667bf3 | 3644 | |
ce757d15 AM |
3645 | /* Add the base of the GOT to the relocation value. */ |
3646 | relocation = (off | |
3647 | + htab->sgot->output_offset | |
3648 | + htab->sgot->output_section->vma); | |
3649 | } | |
30667bf3 | 3650 | break; |
252b5132 | 3651 | |
c46b7515 AM |
3652 | case R_PARISC_SEGREL32: |
3653 | /* If this is the first SEGREL relocation, then initialize | |
3654 | the segment base values. */ | |
83c81bfe AM |
3655 | if (htab->text_segment_base == (bfd_vma) -1) |
3656 | bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); | |
c46b7515 AM |
3657 | break; |
3658 | ||
30667bf3 AM |
3659 | case R_PARISC_PLABEL14R: |
3660 | case R_PARISC_PLABEL21L: | |
3661 | case R_PARISC_PLABEL32: | |
a63e02c7 | 3662 | if (htab->etab.dynamic_sections_created) |
252b5132 | 3663 | { |
ce757d15 | 3664 | bfd_vma off; |
b34976b6 | 3665 | bfd_boolean do_plt = 0; |
74d1c347 AM |
3666 | /* If we have a global symbol with a PLT slot, then |
3667 | redirect this relocation to it. */ | |
875c0872 | 3668 | if (hh != NULL) |
74d1c347 | 3669 | { |
a63e02c7 | 3670 | off = hh->eh.plt.offset; |
c152c796 | 3671 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, |
a63e02c7 | 3672 | &hh->eh)) |
8dea1268 AM |
3673 | { |
3674 | /* In a non-shared link, adjust_dynamic_symbols | |
3675 | isn't called for symbols forced local. We | |
dc810e39 | 3676 | need to write out the plt entry here. */ |
8dea1268 AM |
3677 | if ((off & 1) != 0) |
3678 | off &= ~1; | |
3679 | else | |
3680 | { | |
a63e02c7 | 3681 | hh->eh.plt.offset |= 1; |
ce757d15 | 3682 | do_plt = 1; |
8dea1268 AM |
3683 | } |
3684 | } | |
74d1c347 AM |
3685 | } |
3686 | else | |
3687 | { | |
68fb2e56 AM |
3688 | bfd_vma *local_plt_offsets; |
3689 | ||
3690 | if (local_got_offsets == NULL) | |
3691 | abort (); | |
74d1c347 | 3692 | |
68fb2e56 AM |
3693 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3694 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3695 | |
3696 | /* As for the local .got entry case, we use the last | |
3697 | bit to record whether we've already initialised | |
3698 | this local .plt entry. */ | |
3699 | if ((off & 1) != 0) | |
3700 | off &= ~1; | |
ce757d15 AM |
3701 | else |
3702 | { | |
3703 | local_plt_offsets[r_symndx] |= 1; | |
3704 | do_plt = 1; | |
3705 | } | |
3706 | } | |
3707 | ||
3708 | if (do_plt) | |
3709 | { | |
3710 | if (info->shared) | |
3711 | { | |
3712 | /* Output a dynamic IPLT relocation for this | |
3713 | PLT entry. */ | |
3714 | Elf_Internal_Rela outrel; | |
947216bf AM |
3715 | bfd_byte *loc; |
3716 | asection *s = htab->srelplt; | |
ce757d15 AM |
3717 | |
3718 | outrel.r_offset = (off | |
3719 | + htab->splt->output_offset | |
3720 | + htab->splt->output_section->vma); | |
3721 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3722 | outrel.r_addend = relocation; | |
947216bf AM |
3723 | loc = s->contents; |
3724 | loc += s->reloc_count++ * sizeof (Elf32_External_Rela); | |
ce757d15 AM |
3725 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
3726 | } | |
74d1c347 AM |
3727 | else |
3728 | { | |
3729 | bfd_put_32 (output_bfd, | |
3730 | relocation, | |
83c81bfe | 3731 | htab->splt->contents + off); |
74d1c347 | 3732 | bfd_put_32 (output_bfd, |
83c81bfe AM |
3733 | elf_gp (htab->splt->output_section->owner), |
3734 | htab->splt->contents + off + 4); | |
74d1c347 AM |
3735 | } |
3736 | } | |
3737 | ||
68fb2e56 | 3738 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3739 | abort (); |
74d1c347 AM |
3740 | |
3741 | /* PLABELs contain function pointers. Relocation is to | |
3742 | the entry for the function in the .plt. The magic +2 | |
3743 | offset signals to $$dyncall that the function pointer | |
3744 | is in the .plt and thus has a gp pointer too. | |
3745 | Exception: Undefined PLABELs should have a value of | |
3746 | zero. */ | |
875c0872 | 3747 | if (hh == NULL |
a63e02c7 DA |
3748 | || (hh->eh.root.type != bfd_link_hash_undefweak |
3749 | && hh->eh.root.type != bfd_link_hash_undefined)) | |
74d1c347 AM |
3750 | { |
3751 | relocation = (off | |
83c81bfe AM |
3752 | + htab->splt->output_offset |
3753 | + htab->splt->output_section->vma | |
74d1c347 AM |
3754 | + 2); |
3755 | } | |
3756 | plabel = 1; | |
30667bf3 AM |
3757 | } |
3758 | /* Fall through and possibly emit a dynamic relocation. */ | |
3759 | ||
3760 | case R_PARISC_DIR17F: | |
3761 | case R_PARISC_DIR17R: | |
47d89dba | 3762 | case R_PARISC_DIR14F: |
30667bf3 AM |
3763 | case R_PARISC_DIR14R: |
3764 | case R_PARISC_DIR21L: | |
3765 | case R_PARISC_DPREL14F: | |
3766 | case R_PARISC_DPREL14R: | |
3767 | case R_PARISC_DPREL21L: | |
3768 | case R_PARISC_DIR32: | |
ec338859 AM |
3769 | /* r_symndx will be zero only for relocs against symbols |
3770 | from removed linkonce sections, or sections discarded by | |
3771 | a linker script. */ | |
3772 | if (r_symndx == 0 | |
3773 | || (input_section->flags & SEC_ALLOC) == 0) | |
3774 | break; | |
3775 | ||
30667bf3 | 3776 | /* The reloc types handled here and this conditional |
56882138 | 3777 | expression must match the code in ..check_relocs and |
ec338859 | 3778 | allocate_dynrelocs. ie. We need exactly the same condition |
56882138 AM |
3779 | as in ..check_relocs, with some extra conditions (dynindx |
3780 | test in this case) to cater for relocs removed by | |
ec338859 | 3781 | allocate_dynrelocs. If you squint, the non-shared test |
56882138 AM |
3782 | here does indeed match the one in ..check_relocs, the |
3783 | difference being that here we test DEF_DYNAMIC as well as | |
3784 | !DEF_REGULAR. All common syms end up with !DEF_REGULAR, | |
3785 | which is why we can't use just that test here. | |
3786 | Conversely, DEF_DYNAMIC can't be used in check_relocs as | |
3787 | there all files have not been loaded. */ | |
446f2863 | 3788 | if ((info->shared |
875c0872 | 3789 | && (hh == NULL |
a63e02c7 DA |
3790 | || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT |
3791 | || hh->eh.root.type != bfd_link_hash_undefweak) | |
446f2863 | 3792 | && (IS_ABSOLUTE_RELOC (r_type) |
a63e02c7 | 3793 | || !SYMBOL_CALLS_LOCAL (info, &hh->eh))) |
446f2863 | 3794 | || (!info->shared |
875c0872 | 3795 | && hh != NULL |
a63e02c7 DA |
3796 | && hh->eh.dynindx != -1 |
3797 | && !hh->eh.non_got_ref | |
4fc8051d | 3798 | && ((ELIMINATE_COPY_RELOCS |
a63e02c7 DA |
3799 | && hh->eh.def_dynamic |
3800 | && !hh->eh.def_regular) | |
3801 | || hh->eh.root.type == bfd_link_hash_undefweak | |
3802 | || hh->eh.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
3803 | { |
3804 | Elf_Internal_Rela outrel; | |
b34976b6 | 3805 | bfd_boolean skip; |
98ceb8ce | 3806 | asection *sreloc; |
947216bf | 3807 | bfd_byte *loc; |
252b5132 | 3808 | |
30667bf3 AM |
3809 | /* When generating a shared object, these relocations |
3810 | are copied into the output file to be resolved at run | |
3811 | time. */ | |
252b5132 | 3812 | |
875c0872 | 3813 | outrel.r_addend = rela->r_addend; |
c629eae0 JJ |
3814 | outrel.r_offset = |
3815 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
875c0872 | 3816 | rela->r_offset); |
0bb2d96a JJ |
3817 | skip = (outrel.r_offset == (bfd_vma) -1 |
3818 | || outrel.r_offset == (bfd_vma) -2); | |
30667bf3 AM |
3819 | outrel.r_offset += (input_section->output_offset |
3820 | + input_section->output_section->vma); | |
875c0872 | 3821 | |
30667bf3 | 3822 | if (skip) |
252b5132 | 3823 | { |
30667bf3 | 3824 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 3825 | } |
875c0872 | 3826 | else if (hh != NULL |
a63e02c7 | 3827 | && hh->eh.dynindx != -1 |
74d1c347 | 3828 | && (plabel |
446f2863 AM |
3829 | || !IS_ABSOLUTE_RELOC (r_type) |
3830 | || !info->shared | |
74d1c347 | 3831 | || !info->symbolic |
a63e02c7 | 3832 | || !hh->eh.def_regular)) |
252b5132 | 3833 | { |
a63e02c7 | 3834 | outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type); |
30667bf3 AM |
3835 | } |
3836 | else /* It's a local symbol, or one marked to become local. */ | |
3837 | { | |
3838 | int indx = 0; | |
edd21aca | 3839 | |
30667bf3 AM |
3840 | /* Add the absolute offset of the symbol. */ |
3841 | outrel.r_addend += relocation; | |
edd21aca | 3842 | |
74d1c347 AM |
3843 | /* Global plabels need to be processed by the |
3844 | dynamic linker so that functions have at most one | |
3845 | fptr. For this reason, we need to differentiate | |
3846 | between global and local plabels, which we do by | |
3847 | providing the function symbol for a global plabel | |
3848 | reloc, and no symbol for local plabels. */ | |
3849 | if (! plabel | |
3850 | && sym_sec != NULL | |
30667bf3 AM |
3851 | && sym_sec->output_section != NULL |
3852 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 3853 | { |
4b71bec0 DA |
3854 | /* Skip this relocation if the output section has |
3855 | been discarded. */ | |
3856 | if (bfd_is_abs_section (sym_sec->output_section)) | |
3857 | break; | |
3858 | ||
30667bf3 AM |
3859 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
3860 | /* We are turning this relocation into one | |
3861 | against a section symbol, so subtract out the | |
3862 | output section's address but not the offset | |
3863 | of the input section in the output section. */ | |
3864 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 3865 | } |
252b5132 | 3866 | |
30667bf3 AM |
3867 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
3868 | } | |
98ceb8ce AM |
3869 | sreloc = elf_section_data (input_section)->sreloc; |
3870 | if (sreloc == NULL) | |
3871 | abort (); | |
3872 | ||
947216bf AM |
3873 | loc = sreloc->contents; |
3874 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
98ceb8ce | 3875 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
30667bf3 AM |
3876 | } |
3877 | break; | |
edd21aca | 3878 | |
30667bf3 AM |
3879 | default: |
3880 | break; | |
3881 | } | |
252b5132 | 3882 | |
875c0872 DA |
3883 | rstatus = final_link_relocate (input_section, contents, rela, relocation, |
3884 | htab, sym_sec, hh, info); | |
252b5132 | 3885 | |
875c0872 | 3886 | if (rstatus == bfd_reloc_ok) |
30667bf3 | 3887 | continue; |
252b5132 | 3888 | |
875c0872 | 3889 | if (hh != NULL) |
a63e02c7 | 3890 | sym_name = hh->eh.root.root.string; |
30667bf3 AM |
3891 | else |
3892 | { | |
3893 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
3894 | symtab_hdr->sh_link, | |
3895 | sym->st_name); | |
3896 | if (sym_name == NULL) | |
b34976b6 | 3897 | return FALSE; |
30667bf3 AM |
3898 | if (*sym_name == '\0') |
3899 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
3900 | } | |
edd21aca | 3901 | |
30667bf3 | 3902 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 3903 | |
875c0872 | 3904 | if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported) |
30667bf3 | 3905 | { |
875c0872 | 3906 | if (rstatus == bfd_reloc_notsupported || !warned_undef) |
f09ebc7d AM |
3907 | { |
3908 | (*_bfd_error_handler) | |
d003868e AM |
3909 | (_("%B(%A+0x%lx): cannot handle %s for %s"), |
3910 | input_bfd, | |
3911 | input_section, | |
875c0872 | 3912 | (long) rela->r_offset, |
f09ebc7d AM |
3913 | howto->name, |
3914 | sym_name); | |
3915 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3916 | return FALSE; |
f09ebc7d | 3917 | } |
30667bf3 AM |
3918 | } |
3919 | else | |
3920 | { | |
3921 | if (!((*info->callbacks->reloc_overflow) | |
a63e02c7 | 3922 | (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name, |
875c0872 | 3923 | (bfd_vma) 0, input_bfd, input_section, rela->r_offset))) |
b34976b6 | 3924 | return FALSE; |
30667bf3 AM |
3925 | } |
3926 | } | |
edd21aca | 3927 | |
b34976b6 | 3928 | return TRUE; |
30667bf3 | 3929 | } |
252b5132 | 3930 | |
30667bf3 AM |
3931 | /* Finish up dynamic symbol handling. We set the contents of various |
3932 | dynamic sections here. */ | |
252b5132 | 3933 | |
b34976b6 | 3934 | static bfd_boolean |
c39a58e6 AM |
3935 | elf32_hppa_finish_dynamic_symbol (bfd *output_bfd, |
3936 | struct bfd_link_info *info, | |
875c0872 | 3937 | struct elf_link_hash_entry *eh, |
c39a58e6 | 3938 | Elf_Internal_Sym *sym) |
30667bf3 | 3939 | { |
83c81bfe | 3940 | struct elf32_hppa_link_hash_table *htab; |
875c0872 | 3941 | Elf_Internal_Rela rela; |
a252afa4 | 3942 | bfd_byte *loc; |
edd21aca | 3943 | |
83c81bfe | 3944 | htab = hppa_link_hash_table (info); |
30667bf3 | 3945 | |
875c0872 | 3946 | if (eh->plt.offset != (bfd_vma) -1) |
30667bf3 AM |
3947 | { |
3948 | bfd_vma value; | |
30667bf3 | 3949 | |
875c0872 | 3950 | if (eh->plt.offset & 1) |
8dea1268 AM |
3951 | abort (); |
3952 | ||
30667bf3 AM |
3953 | /* This symbol has an entry in the procedure linkage table. Set |
3954 | it up. | |
3955 | ||
3956 | The format of a plt entry is | |
74d1c347 AM |
3957 | <funcaddr> |
3958 | <__gp> | |
47d89dba | 3959 | */ |
30667bf3 | 3960 | value = 0; |
875c0872 DA |
3961 | if (eh->root.type == bfd_link_hash_defined |
3962 | || eh->root.type == bfd_link_hash_defweak) | |
30667bf3 | 3963 | { |
875c0872 DA |
3964 | value = eh->root.u.def.value; |
3965 | if (eh->root.u.def.section->output_section != NULL) | |
3966 | value += (eh->root.u.def.section->output_offset | |
3967 | + eh->root.u.def.section->output_section->vma); | |
252b5132 | 3968 | } |
edd21aca | 3969 | |
a252afa4 | 3970 | /* Create a dynamic IPLT relocation for this entry. */ |
875c0872 | 3971 | rela.r_offset = (eh->plt.offset |
a252afa4 DA |
3972 | + htab->splt->output_offset |
3973 | + htab->splt->output_section->vma); | |
875c0872 | 3974 | if (eh->dynindx != -1) |
30667bf3 | 3975 | { |
875c0872 DA |
3976 | rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT); |
3977 | rela.r_addend = 0; | |
30667bf3 | 3978 | } |
ce757d15 | 3979 | else |
47d89dba | 3980 | { |
a252afa4 DA |
3981 | /* This symbol has been marked to become local, and is |
3982 | used by a plabel so must be kept in the .plt. */ | |
875c0872 DA |
3983 | rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); |
3984 | rela.r_addend = value; | |
47d89dba AM |
3985 | } |
3986 | ||
a252afa4 DA |
3987 | loc = htab->srelplt->contents; |
3988 | loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela); | |
875c0872 | 3989 | bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc); |
a252afa4 | 3990 | |
875c0872 | 3991 | if (!eh->def_regular) |
30667bf3 AM |
3992 | { |
3993 | /* Mark the symbol as undefined, rather than as defined in | |
3994 | the .plt section. Leave the value alone. */ | |
3995 | sym->st_shndx = SHN_UNDEF; | |
3996 | } | |
3997 | } | |
edd21aca | 3998 | |
875c0872 | 3999 | if (eh->got.offset != (bfd_vma) -1) |
30667bf3 | 4000 | { |
30667bf3 AM |
4001 | /* This symbol has an entry in the global offset table. Set it |
4002 | up. */ | |
4003 | ||
875c0872 | 4004 | rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1) |
83c81bfe AM |
4005 | + htab->sgot->output_offset |
4006 | + htab->sgot->output_section->vma); | |
30667bf3 | 4007 | |
4dc86686 AM |
4008 | /* If this is a -Bsymbolic link and the symbol is defined |
4009 | locally or was forced to be local because of a version file, | |
4010 | we just want to emit a RELATIVE reloc. The entry in the | |
4011 | global offset table will already have been initialized in the | |
4012 | relocate_section function. */ | |
4013 | if (info->shared | |
875c0872 DA |
4014 | && (info->symbolic || eh->dynindx == -1) |
4015 | && eh->def_regular) | |
30667bf3 | 4016 | { |
875c0872 DA |
4017 | rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
4018 | rela.r_addend = (eh->root.u.def.value | |
4019 | + eh->root.u.def.section->output_offset | |
4020 | + eh->root.u.def.section->output_section->vma); | |
30667bf3 AM |
4021 | } |
4022 | else | |
4023 | { | |
875c0872 | 4024 | if ((eh->got.offset & 1) != 0) |
49e9d0d3 | 4025 | abort (); |
875c0872 DA |
4026 | |
4027 | bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1)); | |
4028 | rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32); | |
4029 | rela.r_addend = 0; | |
30667bf3 | 4030 | } |
edd21aca | 4031 | |
947216bf AM |
4032 | loc = htab->srelgot->contents; |
4033 | loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
875c0872 | 4034 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
30667bf3 | 4035 | } |
edd21aca | 4036 | |
875c0872 | 4037 | if (eh->needs_copy) |
30667bf3 | 4038 | { |
875c0872 | 4039 | asection *sec; |
30667bf3 AM |
4040 | |
4041 | /* This symbol needs a copy reloc. Set it up. */ | |
4042 | ||
875c0872 DA |
4043 | if (! (eh->dynindx != -1 |
4044 | && (eh->root.type == bfd_link_hash_defined | |
4045 | || eh->root.type == bfd_link_hash_defweak))) | |
49e9d0d3 | 4046 | abort (); |
30667bf3 | 4047 | |
875c0872 | 4048 | sec = htab->srelbss; |
30667bf3 | 4049 | |
875c0872 DA |
4050 | rela.r_offset = (eh->root.u.def.value |
4051 | + eh->root.u.def.section->output_offset | |
4052 | + eh->root.u.def.section->output_section->vma); | |
4053 | rela.r_addend = 0; | |
4054 | rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY); | |
4055 | loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela); | |
4056 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
30667bf3 AM |
4057 | } |
4058 | ||
4059 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
875c0872 DA |
4060 | if (eh->root.root.string[0] == '_' |
4061 | && (strcmp (eh->root.root.string, "_DYNAMIC") == 0 | |
22edb2f1 | 4062 | || eh == htab->etab.hgot)) |
30667bf3 AM |
4063 | { |
4064 | sym->st_shndx = SHN_ABS; | |
4065 | } | |
4066 | ||
b34976b6 | 4067 | return TRUE; |
30667bf3 AM |
4068 | } |
4069 | ||
98ceb8ce AM |
4070 | /* Used to decide how to sort relocs in an optimal manner for the |
4071 | dynamic linker, before writing them out. */ | |
4072 | ||
4073 | static enum elf_reloc_type_class | |
c39a58e6 | 4074 | elf32_hppa_reloc_type_class (const Elf_Internal_Rela *rela) |
98ceb8ce AM |
4075 | { |
4076 | if (ELF32_R_SYM (rela->r_info) == 0) | |
4077 | return reloc_class_relative; | |
4078 | ||
4079 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4080 | { | |
4081 | case R_PARISC_IPLT: | |
4082 | return reloc_class_plt; | |
4083 | case R_PARISC_COPY: | |
4084 | return reloc_class_copy; | |
4085 | default: | |
4086 | return reloc_class_normal; | |
4087 | } | |
4088 | } | |
4089 | ||
30667bf3 AM |
4090 | /* Finish up the dynamic sections. */ |
4091 | ||
b34976b6 | 4092 | static bfd_boolean |
c39a58e6 AM |
4093 | elf32_hppa_finish_dynamic_sections (bfd *output_bfd, |
4094 | struct bfd_link_info *info) | |
30667bf3 AM |
4095 | { |
4096 | bfd *dynobj; | |
83c81bfe | 4097 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
4098 | asection *sdyn; |
4099 | ||
83c81bfe | 4100 | htab = hppa_link_hash_table (info); |
a63e02c7 | 4101 | dynobj = htab->etab.dynobj; |
30667bf3 AM |
4102 | |
4103 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4104 | ||
a63e02c7 | 4105 | if (htab->etab.dynamic_sections_created) |
30667bf3 AM |
4106 | { |
4107 | Elf32_External_Dyn *dyncon, *dynconend; | |
4108 | ||
49e9d0d3 AM |
4109 | if (sdyn == NULL) |
4110 | abort (); | |
30667bf3 AM |
4111 | |
4112 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 4113 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
30667bf3 | 4114 | for (; dyncon < dynconend; dyncon++) |
edd21aca | 4115 | { |
30667bf3 AM |
4116 | Elf_Internal_Dyn dyn; |
4117 | asection *s; | |
4118 | ||
4119 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4120 | ||
4121 | switch (dyn.d_tag) | |
4122 | { | |
4123 | default: | |
3ac8354b | 4124 | continue; |
30667bf3 AM |
4125 | |
4126 | case DT_PLTGOT: | |
4127 | /* Use PLTGOT to set the GOT register. */ | |
4128 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
30667bf3 AM |
4129 | break; |
4130 | ||
4131 | case DT_JMPREL: | |
83c81bfe | 4132 | s = htab->srelplt; |
30667bf3 | 4133 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
30667bf3 AM |
4134 | break; |
4135 | ||
4136 | case DT_PLTRELSZ: | |
83c81bfe | 4137 | s = htab->srelplt; |
eea6121a | 4138 | dyn.d_un.d_val = s->size; |
30667bf3 | 4139 | break; |
4e12ff7f AM |
4140 | |
4141 | case DT_RELASZ: | |
4142 | /* Don't count procedure linkage table relocs in the | |
4143 | overall reloc count. */ | |
6348e046 AM |
4144 | s = htab->srelplt; |
4145 | if (s == NULL) | |
4146 | continue; | |
eea6121a | 4147 | dyn.d_un.d_val -= s->size; |
6348e046 AM |
4148 | break; |
4149 | ||
4150 | case DT_RELA: | |
4151 | /* We may not be using the standard ELF linker script. | |
4152 | If .rela.plt is the first .rela section, we adjust | |
4153 | DT_RELA to not include it. */ | |
4154 | s = htab->srelplt; | |
4155 | if (s == NULL) | |
4156 | continue; | |
4157 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
4158 | continue; | |
eea6121a | 4159 | dyn.d_un.d_ptr += s->size; |
4e12ff7f | 4160 | break; |
30667bf3 | 4161 | } |
3ac8354b AM |
4162 | |
4163 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
edd21aca | 4164 | } |
252b5132 | 4165 | } |
edd21aca | 4166 | |
eea6121a | 4167 | if (htab->sgot != NULL && htab->sgot->size != 0) |
30667bf3 | 4168 | { |
74d1c347 AM |
4169 | /* Fill in the first entry in the global offset table. |
4170 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 | 4171 | bfd_put_32 (output_bfd, |
c39a58e6 | 4172 | sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0, |
83c81bfe | 4173 | htab->sgot->contents); |
30667bf3 | 4174 | |
74d1c347 | 4175 | /* The second entry is reserved for use by the dynamic linker. */ |
83c81bfe | 4176 | memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4177 | |
30667bf3 | 4178 | /* Set .got entry size. */ |
83c81bfe | 4179 | elf_section_data (htab->sgot->output_section) |
74d1c347 | 4180 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; |
30667bf3 AM |
4181 | } |
4182 | ||
eea6121a | 4183 | if (htab->splt != NULL && htab->splt->size != 0) |
47d89dba AM |
4184 | { |
4185 | /* Set plt entry size. */ | |
83c81bfe | 4186 | elf_section_data (htab->splt->output_section) |
47d89dba AM |
4187 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; |
4188 | ||
83c81bfe | 4189 | if (htab->need_plt_stub) |
47d89dba AM |
4190 | { |
4191 | /* Set up the .plt stub. */ | |
83c81bfe | 4192 | memcpy (htab->splt->contents |
eea6121a | 4193 | + htab->splt->size - sizeof (plt_stub), |
47d89dba AM |
4194 | plt_stub, sizeof (plt_stub)); |
4195 | ||
83c81bfe AM |
4196 | if ((htab->splt->output_offset |
4197 | + htab->splt->output_section->vma | |
eea6121a | 4198 | + htab->splt->size) |
83c81bfe AM |
4199 | != (htab->sgot->output_offset |
4200 | + htab->sgot->output_section->vma)) | |
47d89dba AM |
4201 | { |
4202 | (*_bfd_error_handler) | |
4203 | (_(".got section not immediately after .plt section")); | |
b34976b6 | 4204 | return FALSE; |
47d89dba AM |
4205 | } |
4206 | } | |
4207 | } | |
30667bf3 | 4208 | |
b34976b6 | 4209 | return TRUE; |
30667bf3 | 4210 | } |
252b5132 | 4211 | |
d952f17a AM |
4212 | /* Tweak the OSABI field of the elf header. */ |
4213 | ||
4214 | static void | |
c39a58e6 AM |
4215 | elf32_hppa_post_process_headers (bfd *abfd, |
4216 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
d952f17a AM |
4217 | { |
4218 | Elf_Internal_Ehdr * i_ehdrp; | |
4219 | ||
4220 | i_ehdrp = elf_elfheader (abfd); | |
4221 | ||
4222 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
4223 | { | |
4224 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
4225 | } | |
225247f0 JT |
4226 | else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0) |
4227 | { | |
4228 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_NETBSD; | |
4229 | } | |
d952f17a AM |
4230 | else |
4231 | { | |
4232 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; | |
4233 | } | |
4234 | } | |
4235 | ||
30667bf3 AM |
4236 | /* Called when writing out an object file to decide the type of a |
4237 | symbol. */ | |
4238 | static int | |
c39a58e6 | 4239 | elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type) |
30667bf3 AM |
4240 | { |
4241 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4242 | return STT_PARISC_MILLI; | |
4243 | else | |
4244 | return type; | |
252b5132 RH |
4245 | } |
4246 | ||
4247 | /* Misc BFD support code. */ | |
30667bf3 AM |
4248 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4249 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4250 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4251 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4252 | |
252b5132 | 4253 | /* Stuff for the BFD linker. */ |
c46b7515 | 4254 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 | 4255 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
e2d34d7d | 4256 | #define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free |
30667bf3 | 4257 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol |
ebe50bae | 4258 | #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol |
30667bf3 AM |
4259 | #define elf_backend_check_relocs elf32_hppa_check_relocs |
4260 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4261 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4262 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4263 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4264 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4265 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4266 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4267 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4268 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
edfc032f AM |
4269 | #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus |
4270 | #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo | |
30667bf3 AM |
4271 | #define elf_backend_object_p elf32_hppa_object_p |
4272 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d952f17a | 4273 | #define elf_backend_post_process_headers elf32_hppa_post_process_headers |
30667bf3 | 4274 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
98ceb8ce | 4275 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
8a696751 | 4276 | #define elf_backend_action_discarded elf_hppa_action_discarded |
30667bf3 AM |
4277 | |
4278 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4279 | #define elf_backend_can_refcount 1 |
30667bf3 AM |
4280 | #define elf_backend_plt_alignment 2 |
4281 | #define elf_backend_want_got_plt 0 | |
4282 | #define elf_backend_plt_readonly 0 | |
4283 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4284 | #define elf_backend_got_header_size 8 |
f0fe0e16 | 4285 | #define elf_backend_rela_normal 1 |
252b5132 RH |
4286 | |
4287 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4288 | #define TARGET_BIG_NAME "elf32-hppa" | |
4289 | #define ELF_ARCH bfd_arch_hppa | |
4290 | #define ELF_MACHINE_CODE EM_PARISC | |
4291 | #define ELF_MAXPAGESIZE 0x1000 | |
4292 | ||
4293 | #include "elf32-target.h" | |
d952f17a AM |
4294 | |
4295 | #undef TARGET_BIG_SYM | |
4296 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec | |
4297 | #undef TARGET_BIG_NAME | |
4298 | #define TARGET_BIG_NAME "elf32-hppa-linux" | |
4299 | ||
4300 | #define INCLUDED_TARGET_FILE 1 | |
4301 | #include "elf32-target.h" | |
225247f0 JT |
4302 | |
4303 | #undef TARGET_BIG_SYM | |
4304 | #define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec | |
4305 | #undef TARGET_BIG_NAME | |
4306 | #define TARGET_BIG_NAME "elf32-hppa-netbsd" | |
4307 | ||
4308 | #include "elf32-target.h" |