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, |
3eb128b2 | 3 | 2002, 2003, 2004, 2005 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 | |
a63e02c7 | 397 | if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc)) |
252b5132 | 398 | { |
875c0872 | 399 | free (htab); |
252b5132 RH |
400 | return NULL; |
401 | } | |
edd21aca AM |
402 | |
403 | /* Init the stub hash table too. */ | |
a63e02c7 | 404 | if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc)) |
edd21aca AM |
405 | return NULL; |
406 | ||
875c0872 DA |
407 | htab->stub_bfd = NULL; |
408 | htab->add_stub_section = NULL; | |
409 | htab->layout_sections_again = NULL; | |
410 | htab->stub_group = NULL; | |
411 | htab->sgot = NULL; | |
412 | htab->srelgot = NULL; | |
413 | htab->splt = NULL; | |
414 | htab->srelplt = NULL; | |
415 | htab->sdynbss = NULL; | |
416 | htab->srelbss = NULL; | |
417 | htab->text_segment_base = (bfd_vma) -1; | |
418 | htab->data_segment_base = (bfd_vma) -1; | |
419 | htab->multi_subspace = 0; | |
420 | htab->has_12bit_branch = 0; | |
421 | htab->has_17bit_branch = 0; | |
422 | htab->has_22bit_branch = 0; | |
423 | htab->need_plt_stub = 0; | |
424 | htab->sym_sec.abfd = NULL; | |
425 | ||
a63e02c7 | 426 | return &htab->etab.root; |
252b5132 RH |
427 | } |
428 | ||
e2d34d7d DJ |
429 | /* Free the derived linker hash table. */ |
430 | ||
431 | static void | |
875c0872 | 432 | elf32_hppa_link_hash_table_free (struct bfd_link_hash_table *btab) |
e2d34d7d | 433 | { |
875c0872 DA |
434 | struct elf32_hppa_link_hash_table *htab |
435 | = (struct elf32_hppa_link_hash_table *) btab; | |
e2d34d7d | 436 | |
a63e02c7 | 437 | bfd_hash_table_free (&htab->bstab); |
875c0872 | 438 | _bfd_generic_link_hash_table_free (btab); |
e2d34d7d DJ |
439 | } |
440 | ||
30667bf3 AM |
441 | /* Build a name for an entry in the stub hash table. */ |
442 | ||
edd21aca | 443 | static char * |
c39a58e6 AM |
444 | hppa_stub_name (const asection *input_section, |
445 | const asection *sym_sec, | |
875c0872 DA |
446 | const struct elf32_hppa_link_hash_entry *hh, |
447 | const Elf_Internal_Rela *rela) | |
edd21aca AM |
448 | { |
449 | char *stub_name; | |
dc810e39 | 450 | bfd_size_type len; |
edd21aca | 451 | |
875c0872 | 452 | if (hh) |
30667bf3 | 453 | { |
a63e02c7 | 454 | len = 8 + 1 + strlen (hh->eh.root.root.string) + 1 + 8 + 1; |
30667bf3 AM |
455 | stub_name = bfd_malloc (len); |
456 | if (stub_name != NULL) | |
457 | { | |
458 | sprintf (stub_name, "%08x_%s+%x", | |
459 | input_section->id & 0xffffffff, | |
a63e02c7 | 460 | hh->eh.root.root.string, |
875c0872 | 461 | (int) rela->r_addend & 0xffffffff); |
30667bf3 AM |
462 | } |
463 | } | |
464 | else | |
edd21aca | 465 | { |
30667bf3 AM |
466 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
467 | stub_name = bfd_malloc (len); | |
468 | if (stub_name != NULL) | |
469 | { | |
470 | sprintf (stub_name, "%08x_%x:%x+%x", | |
471 | input_section->id & 0xffffffff, | |
472 | sym_sec->id & 0xffffffff, | |
875c0872 DA |
473 | (int) ELF32_R_SYM (rela->r_info) & 0xffffffff, |
474 | (int) rela->r_addend & 0xffffffff); | |
30667bf3 | 475 | } |
edd21aca AM |
476 | } |
477 | return stub_name; | |
478 | } | |
252b5132 | 479 | |
30667bf3 AM |
480 | /* Look up an entry in the stub hash. Stub entries are cached because |
481 | creating the stub name takes a bit of time. */ | |
482 | ||
483 | static struct elf32_hppa_stub_hash_entry * | |
c39a58e6 AM |
484 | hppa_get_stub_entry (const asection *input_section, |
485 | const asection *sym_sec, | |
875c0872 DA |
486 | struct elf32_hppa_link_hash_entry *hh, |
487 | const Elf_Internal_Rela *rela, | |
c39a58e6 | 488 | struct elf32_hppa_link_hash_table *htab) |
252b5132 | 489 | { |
a63e02c7 | 490 | struct elf32_hppa_stub_hash_entry *hsh_entry; |
25f72752 AM |
491 | const asection *id_sec; |
492 | ||
493 | /* If this input section is part of a group of sections sharing one | |
494 | stub section, then use the id of the first section in the group. | |
495 | Stub names need to include a section id, as there may well be | |
496 | more than one stub used to reach say, printf, and we need to | |
497 | distinguish between them. */ | |
83c81bfe | 498 | id_sec = htab->stub_group[input_section->id].link_sec; |
edd21aca | 499 | |
a63e02c7 DA |
500 | if (hh != NULL && hh->hsh_cache != NULL |
501 | && hh->hsh_cache->hh == hh | |
502 | && hh->hsh_cache->id_sec == id_sec) | |
edd21aca | 503 | { |
a63e02c7 | 504 | hsh_entry = hh->hsh_cache; |
30667bf3 AM |
505 | } |
506 | else | |
507 | { | |
30667bf3 | 508 | char *stub_name; |
edd21aca | 509 | |
875c0872 | 510 | stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela); |
30667bf3 AM |
511 | if (stub_name == NULL) |
512 | return NULL; | |
edd21aca | 513 | |
a63e02c7 | 514 | hsh_entry = hppa_stub_hash_lookup (&htab->bstab, |
b34976b6 | 515 | stub_name, FALSE, FALSE); |
875c0872 | 516 | if (hh != NULL) |
a63e02c7 | 517 | hh->hsh_cache = hsh_entry; |
30667bf3 AM |
518 | |
519 | free (stub_name); | |
edd21aca | 520 | } |
30667bf3 | 521 | |
a63e02c7 | 522 | return hsh_entry; |
30667bf3 AM |
523 | } |
524 | ||
30667bf3 AM |
525 | /* Add a new stub entry to the stub hash. Not all fields of the new |
526 | stub entry are initialised. */ | |
527 | ||
528 | static struct elf32_hppa_stub_hash_entry * | |
c39a58e6 AM |
529 | hppa_add_stub (const char *stub_name, |
530 | asection *section, | |
531 | struct elf32_hppa_link_hash_table *htab) | |
30667bf3 | 532 | { |
25f72752 | 533 | asection *link_sec; |
30667bf3 | 534 | asection *stub_sec; |
875c0872 | 535 | struct elf32_hppa_stub_hash_entry *hsh; |
edd21aca | 536 | |
83c81bfe AM |
537 | link_sec = htab->stub_group[section->id].link_sec; |
538 | stub_sec = htab->stub_group[section->id].stub_sec; | |
30667bf3 | 539 | if (stub_sec == NULL) |
edd21aca | 540 | { |
83c81bfe | 541 | stub_sec = htab->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
542 | if (stub_sec == NULL) |
543 | { | |
d4c88bbb | 544 | size_t namelen; |
dc810e39 | 545 | bfd_size_type len; |
30667bf3 AM |
546 | char *s_name; |
547 | ||
d4c88bbb AM |
548 | namelen = strlen (link_sec->name); |
549 | len = namelen + sizeof (STUB_SUFFIX); | |
83c81bfe | 550 | s_name = bfd_alloc (htab->stub_bfd, len); |
30667bf3 AM |
551 | if (s_name == NULL) |
552 | return NULL; | |
553 | ||
d4c88bbb AM |
554 | memcpy (s_name, link_sec->name, namelen); |
555 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
83c81bfe | 556 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
557 | if (stub_sec == NULL) |
558 | return NULL; | |
83c81bfe | 559 | htab->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 560 | } |
83c81bfe | 561 | htab->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 562 | } |
252b5132 | 563 | |
30667bf3 | 564 | /* Enter this entry into the linker stub hash table. */ |
a63e02c7 | 565 | hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name, |
b34976b6 | 566 | TRUE, FALSE); |
875c0872 | 567 | if (hsh == NULL) |
30667bf3 | 568 | { |
d003868e AM |
569 | (*_bfd_error_handler) (_("%B: cannot create stub entry %s"), |
570 | section->owner, | |
30667bf3 AM |
571 | stub_name); |
572 | return NULL; | |
edd21aca AM |
573 | } |
574 | ||
875c0872 DA |
575 | hsh->stub_sec = stub_sec; |
576 | hsh->stub_offset = 0; | |
577 | hsh->id_sec = link_sec; | |
578 | return hsh; | |
edd21aca AM |
579 | } |
580 | ||
30667bf3 AM |
581 | /* Determine the type of stub needed, if any, for a call. */ |
582 | ||
583 | static enum elf32_hppa_stub_type | |
c39a58e6 | 584 | hppa_type_of_stub (asection *input_sec, |
875c0872 DA |
585 | const Elf_Internal_Rela *rela, |
586 | struct elf32_hppa_link_hash_entry *hh, | |
a252afa4 DA |
587 | bfd_vma destination, |
588 | struct bfd_link_info *info) | |
edd21aca | 589 | { |
edd21aca | 590 | bfd_vma location; |
30667bf3 AM |
591 | bfd_vma branch_offset; |
592 | bfd_vma max_branch_offset; | |
593 | unsigned int r_type; | |
594 | ||
875c0872 | 595 | if (hh != NULL |
a63e02c7 DA |
596 | && hh->eh.plt.offset != (bfd_vma) -1 |
597 | && hh->eh.dynindx != -1 | |
875c0872 | 598 | && !hh->plabel |
a252afa4 | 599 | && (info->shared |
a63e02c7 DA |
600 | || !hh->eh.def_regular |
601 | || hh->eh.root.type == bfd_link_hash_defweak)) | |
30667bf3 | 602 | { |
067fa4a6 AM |
603 | /* We need an import stub. Decide between hppa_stub_import |
604 | and hppa_stub_import_shared later. */ | |
30667bf3 AM |
605 | return hppa_stub_import; |
606 | } | |
edd21aca | 607 | |
30667bf3 AM |
608 | /* Determine where the call point is. */ |
609 | location = (input_sec->output_offset | |
610 | + input_sec->output_section->vma | |
875c0872 | 611 | + rela->r_offset); |
edd21aca | 612 | |
30667bf3 | 613 | branch_offset = destination - location - 8; |
875c0872 | 614 | r_type = ELF32_R_TYPE (rela->r_info); |
edd21aca | 615 | |
30667bf3 AM |
616 | /* Determine if a long branch stub is needed. parisc branch offsets |
617 | are relative to the second instruction past the branch, ie. +8 | |
618 | bytes on from the branch instruction location. The offset is | |
619 | signed and counts in units of 4 bytes. */ | |
620 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
edd21aca | 621 | { |
30667bf3 AM |
622 | max_branch_offset = (1 << (17-1)) << 2; |
623 | } | |
624 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
625 | { | |
626 | max_branch_offset = (1 << (12-1)) << 2; | |
627 | } | |
25f72752 | 628 | else /* R_PARISC_PCREL22F. */ |
30667bf3 AM |
629 | { |
630 | max_branch_offset = (1 << (22-1)) << 2; | |
edd21aca AM |
631 | } |
632 | ||
30667bf3 | 633 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
634 | return hppa_stub_long_branch; |
635 | ||
30667bf3 AM |
636 | return hppa_stub_none; |
637 | } | |
edd21aca | 638 | |
30667bf3 AM |
639 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
640 | IN_ARG contains the link info pointer. */ | |
edd21aca | 641 | |
30667bf3 AM |
642 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
643 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 644 | |
30667bf3 | 645 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 646 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 647 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 648 | |
3ee1d854 AM |
649 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
650 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 651 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 652 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 653 | |
3ee1d854 AM |
654 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
655 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 656 | |
30667bf3 AM |
657 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
658 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
659 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
660 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 661 | |
067fa4a6 | 662 | #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */ |
30667bf3 AM |
663 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
664 | #define NOP 0x08000240 /* nop */ | |
665 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
666 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
667 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 668 | |
30667bf3 AM |
669 | #ifndef R19_STUBS |
670 | #define R19_STUBS 1 | |
671 | #endif | |
edd21aca | 672 | |
30667bf3 AM |
673 | #if R19_STUBS |
674 | #define LDW_R1_DLT LDW_R1_R19 | |
675 | #else | |
676 | #define LDW_R1_DLT LDW_R1_DP | |
677 | #endif | |
edd21aca | 678 | |
b34976b6 | 679 | static bfd_boolean |
875c0872 | 680 | hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg) |
30667bf3 | 681 | { |
875c0872 | 682 | struct elf32_hppa_stub_hash_entry *hsh; |
30667bf3 | 683 | struct bfd_link_info *info; |
83c81bfe | 684 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
685 | asection *stub_sec; |
686 | bfd *stub_bfd; | |
687 | bfd_byte *loc; | |
688 | bfd_vma sym_value; | |
74d1c347 | 689 | bfd_vma insn; |
8dea1268 | 690 | bfd_vma off; |
74d1c347 | 691 | int val; |
30667bf3 | 692 | int size; |
edd21aca | 693 | |
30667bf3 | 694 | /* Massage our args to the form they really have. */ |
875c0872 DA |
695 | hsh = hppa_stub_hash_entry (bh); |
696 | info = (struct bfd_link_info *)in_arg; | |
30667bf3 | 697 | |
83c81bfe | 698 | htab = hppa_link_hash_table (info); |
875c0872 | 699 | stub_sec = hsh->stub_sec; |
edd21aca | 700 | |
30667bf3 | 701 | /* Make a note of the offset within the stubs for this entry. */ |
875c0872 DA |
702 | hsh->stub_offset = stub_sec->size; |
703 | loc = stub_sec->contents + hsh->stub_offset; | |
252b5132 | 704 | |
30667bf3 AM |
705 | stub_bfd = stub_sec->owner; |
706 | ||
875c0872 | 707 | switch (hsh->stub_type) |
30667bf3 AM |
708 | { |
709 | case hppa_stub_long_branch: | |
710 | /* Create the long branch. A long branch is formed with "ldil" | |
711 | loading the upper bits of the target address into a register, | |
712 | then branching with "be" which adds in the lower bits. | |
713 | The "be" has its delay slot nullified. */ | |
875c0872 DA |
714 | sym_value = (hsh->target_value |
715 | + hsh->target_section->output_offset | |
716 | + hsh->target_section->output_section->vma); | |
30667bf3 | 717 | |
c39a58e6 | 718 | val = hppa_field_adjust (sym_value, 0, e_lrsel); |
74d1c347 | 719 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); |
30667bf3 AM |
720 | bfd_put_32 (stub_bfd, insn, loc); |
721 | ||
c39a58e6 | 722 | val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2; |
74d1c347 | 723 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
724 | bfd_put_32 (stub_bfd, insn, loc + 4); |
725 | ||
30667bf3 | 726 | size = 8; |
edd21aca AM |
727 | break; |
728 | ||
30667bf3 AM |
729 | case hppa_stub_long_branch_shared: |
730 | /* Branches are relative. This is where we are going to. */ | |
875c0872 DA |
731 | sym_value = (hsh->target_value |
732 | + hsh->target_section->output_offset | |
733 | + hsh->target_section->output_section->vma); | |
30667bf3 AM |
734 | |
735 | /* And this is where we are coming from, more or less. */ | |
875c0872 | 736 | sym_value -= (hsh->stub_offset |
30667bf3 AM |
737 | + stub_sec->output_offset |
738 | + stub_sec->output_section->vma); | |
739 | ||
74d1c347 | 740 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 741 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 742 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
743 | bfd_put_32 (stub_bfd, insn, loc + 4); |
744 | ||
47d89dba | 745 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 746 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
747 | bfd_put_32 (stub_bfd, insn, loc + 8); |
748 | size = 12; | |
749 | break; | |
edd21aca | 750 | |
30667bf3 AM |
751 | case hppa_stub_import: |
752 | case hppa_stub_import_shared: | |
a63e02c7 | 753 | off = hsh->hh->eh.plt.offset; |
8dea1268 | 754 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 755 | abort (); |
8dea1268 AM |
756 | |
757 | off &= ~ (bfd_vma) 1; | |
758 | sym_value = (off | |
83c81bfe AM |
759 | + htab->splt->output_offset |
760 | + htab->splt->output_section->vma | |
761 | - elf_gp (htab->splt->output_section->owner)); | |
30667bf3 AM |
762 | |
763 | insn = ADDIL_DP; | |
764 | #if R19_STUBS | |
875c0872 | 765 | if (hsh->stub_type == hppa_stub_import_shared) |
30667bf3 AM |
766 | insn = ADDIL_R19; |
767 | #endif | |
c39a58e6 | 768 | val = hppa_field_adjust (sym_value, 0, e_lrsel), |
74d1c347 | 769 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 770 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 771 | |
47d89dba AM |
772 | /* It is critical to use lrsel/rrsel here because we are using |
773 | two different offsets (+0 and +4) from sym_value. If we use | |
774 | lsel/rsel then with unfortunate sym_values we will round | |
775 | sym_value+4 up to the next 2k block leading to a mis-match | |
776 | between the lsel and rsel value. */ | |
c39a58e6 | 777 | val = hppa_field_adjust (sym_value, 0, e_rrsel); |
74d1c347 | 778 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 779 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 780 | |
83c81bfe | 781 | if (htab->multi_subspace) |
30667bf3 | 782 | { |
47d89dba | 783 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 784 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 785 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 786 | |
74d1c347 AM |
787 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
788 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
789 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
790 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 791 | |
30667bf3 AM |
792 | size = 28; |
793 | } | |
794 | else | |
795 | { | |
74d1c347 | 796 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 797 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 798 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 799 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 800 | |
30667bf3 AM |
801 | size = 16; |
802 | } | |
252b5132 | 803 | |
30667bf3 | 804 | break; |
252b5132 | 805 | |
30667bf3 AM |
806 | case hppa_stub_export: |
807 | /* Branches are relative. This is where we are going to. */ | |
875c0872 DA |
808 | sym_value = (hsh->target_value |
809 | + hsh->target_section->output_offset | |
810 | + hsh->target_section->output_section->vma); | |
252b5132 | 811 | |
30667bf3 | 812 | /* And this is where we are coming from. */ |
875c0872 | 813 | sym_value -= (hsh->stub_offset |
30667bf3 AM |
814 | + stub_sec->output_offset |
815 | + stub_sec->output_section->vma); | |
edd21aca | 816 | |
067fa4a6 AM |
817 | if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2)) |
818 | && (!htab->has_22bit_branch | |
819 | || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2)))) | |
30667bf3 | 820 | { |
edd21aca | 821 | (*_bfd_error_handler) |
d003868e | 822 | (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
875c0872 | 823 | hsh->target_section->owner, |
d003868e | 824 | stub_sec, |
875c0872 | 825 | (long) hsh->stub_offset, |
a63e02c7 | 826 | hsh->bh_root.string); |
30667bf3 | 827 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 828 | return FALSE; |
252b5132 | 829 | } |
30667bf3 | 830 | |
74d1c347 | 831 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
067fa4a6 AM |
832 | if (!htab->has_22bit_branch) |
833 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
834 | else | |
835 | insn = hppa_rebuild_insn ((int) BL22_RP, val, 22); | |
30667bf3 AM |
836 | bfd_put_32 (stub_bfd, insn, loc); |
837 | ||
74d1c347 AM |
838 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
839 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
840 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
841 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
842 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
843 | |
844 | /* Point the function symbol at the stub. */ | |
a63e02c7 DA |
845 | hsh->hh->eh.root.u.def.section = stub_sec; |
846 | hsh->hh->eh.root.u.def.value = stub_sec->size; | |
30667bf3 AM |
847 | |
848 | size = 24; | |
849 | break; | |
850 | ||
851 | default: | |
852 | BFD_FAIL (); | |
b34976b6 | 853 | return FALSE; |
252b5132 RH |
854 | } |
855 | ||
eea6121a | 856 | stub_sec->size += size; |
b34976b6 | 857 | return TRUE; |
252b5132 RH |
858 | } |
859 | ||
30667bf3 AM |
860 | #undef LDIL_R1 |
861 | #undef BE_SR4_R1 | |
862 | #undef BL_R1 | |
863 | #undef ADDIL_R1 | |
864 | #undef DEPI_R1 | |
30667bf3 AM |
865 | #undef LDW_R1_R21 |
866 | #undef LDW_R1_DLT | |
867 | #undef LDW_R1_R19 | |
868 | #undef ADDIL_R19 | |
869 | #undef LDW_R1_DP | |
870 | #undef LDSID_R21_R1 | |
871 | #undef MTSP_R1 | |
872 | #undef BE_SR0_R21 | |
873 | #undef STW_RP | |
874 | #undef BV_R0_R21 | |
875 | #undef BL_RP | |
876 | #undef NOP | |
877 | #undef LDW_RP | |
878 | #undef LDSID_RP_R1 | |
879 | #undef BE_SR0_RP | |
252b5132 | 880 | |
30667bf3 AM |
881 | /* As above, but don't actually build the stub. Just bump offset so |
882 | we know stub section sizes. */ | |
883 | ||
b34976b6 | 884 | static bfd_boolean |
875c0872 | 885 | hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg) |
252b5132 | 886 | { |
875c0872 | 887 | struct elf32_hppa_stub_hash_entry *hsh; |
83c81bfe | 888 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
889 | int size; |
890 | ||
891 | /* Massage our args to the form they really have. */ | |
875c0872 | 892 | hsh = hppa_stub_hash_entry (bh); |
c39a58e6 | 893 | htab = in_arg; |
30667bf3 | 894 | |
875c0872 | 895 | if (hsh->stub_type == hppa_stub_long_branch) |
98ceb8ce | 896 | size = 8; |
875c0872 | 897 | else if (hsh->stub_type == hppa_stub_long_branch_shared) |
30667bf3 | 898 | size = 12; |
875c0872 | 899 | else if (hsh->stub_type == hppa_stub_export) |
30667bf3 | 900 | size = 24; |
74d1c347 | 901 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 902 | { |
83c81bfe | 903 | if (htab->multi_subspace) |
30667bf3 AM |
904 | size = 28; |
905 | else | |
906 | size = 16; | |
907 | } | |
252b5132 | 908 | |
875c0872 | 909 | hsh->stub_sec->size += size; |
b34976b6 | 910 | return TRUE; |
30667bf3 | 911 | } |
252b5132 | 912 | |
30667bf3 AM |
913 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
914 | Additionally we set the default architecture and machine. */ | |
915 | ||
b34976b6 | 916 | static bfd_boolean |
c39a58e6 | 917 | elf32_hppa_object_p (bfd *abfd) |
30667bf3 | 918 | { |
24a5e751 L |
919 | Elf_Internal_Ehdr * i_ehdrp; |
920 | unsigned int flags; | |
252b5132 | 921 | |
24a5e751 L |
922 | i_ehdrp = elf_elfheader (abfd); |
923 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
924 | { | |
6c21aa76 NC |
925 | /* GCC on hppa-linux produces binaries with OSABI=Linux, |
926 | but the kernel produces corefiles with OSABI=SysV. */ | |
927 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX && | |
928 | i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ | |
b34976b6 | 929 | return FALSE; |
24a5e751 | 930 | } |
225247f0 JT |
931 | else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0) |
932 | { | |
933 | /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD, | |
934 | but the kernel produces corefiles with OSABI=SysV. */ | |
935 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD && | |
936 | i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ | |
937 | return FALSE; | |
938 | } | |
24a5e751 L |
939 | else |
940 | { | |
941 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
b34976b6 | 942 | return FALSE; |
24a5e751 L |
943 | } |
944 | ||
945 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
946 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
947 | { | |
948 | case EFA_PARISC_1_0: | |
949 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
950 | case EFA_PARISC_1_1: | |
951 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
952 | case EFA_PARISC_2_0: | |
953 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
954 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
955 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
956 | } | |
b34976b6 | 957 | return TRUE; |
252b5132 RH |
958 | } |
959 | ||
30667bf3 AM |
960 | /* Create the .plt and .got sections, and set up our hash table |
961 | short-cuts to various dynamic sections. */ | |
962 | ||
b34976b6 | 963 | static bfd_boolean |
c39a58e6 | 964 | elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 965 | { |
83c81bfe | 966 | struct elf32_hppa_link_hash_table *htab; |
875c0872 | 967 | struct elf_link_hash_entry *eh; |
edd21aca | 968 | |
30667bf3 | 969 | /* Don't try to create the .plt and .got twice. */ |
83c81bfe AM |
970 | htab = hppa_link_hash_table (info); |
971 | if (htab->splt != NULL) | |
b34976b6 | 972 | return TRUE; |
edd21aca | 973 | |
30667bf3 AM |
974 | /* Call the generic code to do most of the work. */ |
975 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
b34976b6 | 976 | return FALSE; |
252b5132 | 977 | |
83c81bfe AM |
978 | htab->splt = bfd_get_section_by_name (abfd, ".plt"); |
979 | htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
30667bf3 | 980 | |
83c81bfe | 981 | htab->sgot = bfd_get_section_by_name (abfd, ".got"); |
3496cb2a L |
982 | htab->srelgot = bfd_make_section_with_flags (abfd, ".rela.got", |
983 | (SEC_ALLOC | |
984 | | SEC_LOAD | |
985 | | SEC_HAS_CONTENTS | |
986 | | SEC_IN_MEMORY | |
987 | | SEC_LINKER_CREATED | |
988 | | SEC_READONLY)); | |
83c81bfe | 989 | if (htab->srelgot == NULL |
83c81bfe | 990 | || ! bfd_set_section_alignment (abfd, htab->srelgot, 2)) |
b34976b6 | 991 | return FALSE; |
edd21aca | 992 | |
83c81bfe AM |
993 | htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
994 | htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
30667bf3 | 995 | |
b18e2ae5 AM |
996 | /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main |
997 | application, because __canonicalize_funcptr_for_compare needs it. */ | |
875c0872 DA |
998 | eh = elf_hash_table (info)->hgot; |
999 | eh->forced_local = 0; | |
1000 | eh->other = STV_DEFAULT; | |
1001 | return bfd_elf_link_record_dynamic_symbol (info, eh); | |
30667bf3 AM |
1002 | } |
1003 | ||
ebe50bae AM |
1004 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1005 | ||
51b64d56 | 1006 | static void |
fcfa13d2 | 1007 | elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info, |
875c0872 DA |
1008 | struct elf_link_hash_entry *eh_dir, |
1009 | struct elf_link_hash_entry *eh_ind) | |
ebe50bae | 1010 | { |
875c0872 | 1011 | struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind; |
ebe50bae | 1012 | |
875c0872 DA |
1013 | hh_dir = hppa_elf_hash_entry (eh_dir); |
1014 | hh_ind = hppa_elf_hash_entry (eh_ind); | |
ebe50bae | 1015 | |
875c0872 | 1016 | if (hh_ind->dyn_relocs != NULL) |
ebe50bae | 1017 | { |
875c0872 | 1018 | if (hh_dir->dyn_relocs != NULL) |
bbd7ec4a | 1019 | { |
875c0872 DA |
1020 | struct elf32_hppa_dyn_reloc_entry **hdh_pp; |
1021 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
bbd7ec4a | 1022 | |
fcfa13d2 | 1023 | /* Add reloc counts against the indirect sym to the direct sym |
bbd7ec4a | 1024 | list. Merge any entries against the same section. */ |
875c0872 | 1025 | for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; ) |
bbd7ec4a | 1026 | { |
875c0872 | 1027 | struct elf32_hppa_dyn_reloc_entry *hdh_q; |
bbd7ec4a | 1028 | |
fcfa13d2 AM |
1029 | for (hdh_q = hh_dir->dyn_relocs; |
1030 | hdh_q != NULL; | |
1031 | hdh_q = hdh_q->hdh_next) | |
875c0872 | 1032 | if (hdh_q->sec == hdh_p->sec) |
bbd7ec4a AM |
1033 | { |
1034 | #if RELATIVE_DYNRELOCS | |
875c0872 | 1035 | hdh_q->relative_count += hdh_p->relative_count; |
bbd7ec4a | 1036 | #endif |
875c0872 | 1037 | hdh_q->count += hdh_p->count; |
a63e02c7 | 1038 | *hdh_pp = hdh_p->hdh_next; |
bbd7ec4a AM |
1039 | break; |
1040 | } | |
875c0872 | 1041 | if (hdh_q == NULL) |
a63e02c7 | 1042 | hdh_pp = &hdh_p->hdh_next; |
bbd7ec4a | 1043 | } |
875c0872 | 1044 | *hdh_pp = hh_dir->dyn_relocs; |
bbd7ec4a AM |
1045 | } |
1046 | ||
875c0872 DA |
1047 | hh_dir->dyn_relocs = hh_ind->dyn_relocs; |
1048 | hh_ind->dyn_relocs = NULL; | |
ebe50bae | 1049 | } |
ebe50bae | 1050 | |
4fc8051d | 1051 | if (ELIMINATE_COPY_RELOCS |
875c0872 DA |
1052 | && eh_ind->root.type != bfd_link_hash_indirect |
1053 | && eh_dir->dynamic_adjusted) | |
f5385ebf AM |
1054 | { |
1055 | /* If called to transfer flags for a weakdef during processing | |
1056 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
1057 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
875c0872 DA |
1058 | eh_dir->ref_dynamic |= eh_ind->ref_dynamic; |
1059 | eh_dir->ref_regular |= eh_ind->ref_regular; | |
1060 | eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak; | |
1061 | eh_dir->needs_plt |= eh_ind->needs_plt; | |
f5385ebf | 1062 | } |
4fc8051d | 1063 | else |
fcfa13d2 | 1064 | _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind); |
ebe50bae AM |
1065 | } |
1066 | ||
30667bf3 | 1067 | /* Look through the relocs for a section during the first phase, and |
3ac8354b AM |
1068 | calculate needed space in the global offset table, procedure linkage |
1069 | table, and dynamic reloc sections. At this point we haven't | |
1070 | necessarily read all the input files. */ | |
252b5132 | 1071 | |
b34976b6 | 1072 | static bfd_boolean |
c39a58e6 AM |
1073 | elf32_hppa_check_relocs (bfd *abfd, |
1074 | struct bfd_link_info *info, | |
1075 | asection *sec, | |
1076 | const Elf_Internal_Rela *relocs) | |
252b5132 | 1077 | { |
30667bf3 | 1078 | Elf_Internal_Shdr *symtab_hdr; |
875c0872 DA |
1079 | struct elf_link_hash_entry **eh_syms; |
1080 | const Elf_Internal_Rela *rela; | |
1081 | const Elf_Internal_Rela *rela_end; | |
83c81bfe | 1082 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1083 | asection *sreloc; |
1084 | asection *stubreloc; | |
1085 | ||
1049f94e | 1086 | if (info->relocatable) |
b34976b6 | 1087 | return TRUE; |
30667bf3 | 1088 | |
83c81bfe | 1089 | htab = hppa_link_hash_table (info); |
30667bf3 | 1090 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
875c0872 | 1091 | eh_syms = elf_sym_hashes (abfd); |
30667bf3 AM |
1092 | sreloc = NULL; |
1093 | stubreloc = NULL; | |
1094 | ||
875c0872 DA |
1095 | rela_end = relocs + sec->reloc_count; |
1096 | for (rela = relocs; rela < rela_end; rela++) | |
30667bf3 AM |
1097 | { |
1098 | enum { | |
1099 | NEED_GOT = 1, | |
1100 | NEED_PLT = 2, | |
1101 | NEED_DYNREL = 4, | |
98ceb8ce | 1102 | PLT_PLABEL = 8 |
30667bf3 | 1103 | }; |
edd21aca | 1104 | |
30667bf3 | 1105 | unsigned int r_symndx, r_type; |
875c0872 DA |
1106 | struct elf32_hppa_link_hash_entry *hh; |
1107 | int need_entry = 0; | |
252b5132 | 1108 | |
875c0872 | 1109 | r_symndx = ELF32_R_SYM (rela->r_info); |
252b5132 | 1110 | |
30667bf3 | 1111 | if (r_symndx < symtab_hdr->sh_info) |
875c0872 | 1112 | hh = NULL; |
30667bf3 | 1113 | else |
f7c5057a | 1114 | { |
875c0872 | 1115 | hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]); |
a63e02c7 DA |
1116 | while (hh->eh.root.type == bfd_link_hash_indirect |
1117 | || hh->eh.root.type == bfd_link_hash_warning) | |
1118 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
f7c5057a | 1119 | } |
252b5132 | 1120 | |
875c0872 | 1121 | r_type = ELF32_R_TYPE (rela->r_info); |
252b5132 | 1122 | |
30667bf3 AM |
1123 | switch (r_type) |
1124 | { | |
1125 | case R_PARISC_DLTIND14F: | |
1126 | case R_PARISC_DLTIND14R: | |
1127 | case R_PARISC_DLTIND21L: | |
1128 | /* This symbol requires a global offset table entry. */ | |
1129 | need_entry = NEED_GOT; | |
30667bf3 AM |
1130 | break; |
1131 | ||
1132 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1133 | case R_PARISC_PLABEL21L: | |
1134 | case R_PARISC_PLABEL32: | |
74d1c347 | 1135 | /* If the addend is non-zero, we break badly. */ |
875c0872 | 1136 | if (rela->r_addend != 0) |
49e9d0d3 | 1137 | abort (); |
74d1c347 AM |
1138 | |
1139 | /* If we are creating a shared library, then we need to | |
1140 | create a PLT entry for all PLABELs, because PLABELs with | |
1141 | local symbols may be passed via a pointer to another | |
1142 | object. Additionally, output a dynamic relocation | |
4dc86686 | 1143 | pointing to the PLT entry. |
875c0872 | 1144 | |
4dc86686 AM |
1145 | For executables, the original 32-bit ABI allowed two |
1146 | different styles of PLABELs (function pointers): For | |
1147 | global functions, the PLABEL word points into the .plt | |
1148 | two bytes past a (function address, gp) pair, and for | |
1149 | local functions the PLABEL points directly at the | |
1150 | function. The magic +2 for the first type allows us to | |
1151 | differentiate between the two. As you can imagine, this | |
1152 | is a real pain when it comes to generating code to call | |
1153 | functions indirectly or to compare function pointers. | |
1154 | We avoid the mess by always pointing a PLABEL into the | |
1155 | .plt, even for local functions. */ | |
74d1c347 | 1156 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1157 | break; |
1158 | ||
1159 | case R_PARISC_PCREL12F: | |
83c81bfe | 1160 | htab->has_12bit_branch = 1; |
067fa4a6 AM |
1161 | goto branch_common; |
1162 | ||
30667bf3 AM |
1163 | case R_PARISC_PCREL17C: |
1164 | case R_PARISC_PCREL17F: | |
83c81bfe | 1165 | htab->has_17bit_branch = 1; |
067fa4a6 AM |
1166 | goto branch_common; |
1167 | ||
30667bf3 | 1168 | case R_PARISC_PCREL22F: |
067fa4a6 AM |
1169 | htab->has_22bit_branch = 1; |
1170 | branch_common: | |
47d89dba AM |
1171 | /* Function calls might need to go through the .plt, and |
1172 | might require long branch stubs. */ | |
875c0872 | 1173 | if (hh == NULL) |
30667bf3 AM |
1174 | { |
1175 | /* We know local syms won't need a .plt entry, and if | |
1176 | they need a long branch stub we can't guarantee that | |
1177 | we can reach the stub. So just flag an error later | |
1178 | if we're doing a shared link and find we need a long | |
1179 | branch stub. */ | |
1180 | continue; | |
1181 | } | |
1182 | else | |
1183 | { | |
1184 | /* Global symbols will need a .plt entry if they remain | |
1185 | global, and in most cases won't need a long branch | |
1186 | stub. Unfortunately, we have to cater for the case | |
1187 | where a symbol is forced local by versioning, or due | |
1188 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1189 | need_entry = NEED_PLT; |
a63e02c7 | 1190 | if (hh->eh.type == STT_PARISC_MILLI) |
98ceb8ce | 1191 | need_entry = 0; |
30667bf3 AM |
1192 | } |
1193 | break; | |
1194 | ||
36751eee | 1195 | case R_PARISC_SEGBASE: /* Used to set segment base. */ |
c46b7515 | 1196 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1197 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1198 | case R_PARISC_PCREL14R: | |
1199 | case R_PARISC_PCREL17R: /* External branches. */ | |
1200 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
36751eee | 1201 | case R_PARISC_PCREL32: |
30667bf3 AM |
1202 | /* We don't need to propagate the relocation if linking a |
1203 | shared object since these are section relative. */ | |
1204 | continue; | |
1205 | ||
1206 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1207 | case R_PARISC_DPREL14R: | |
1208 | case R_PARISC_DPREL21L: | |
1209 | if (info->shared) | |
1210 | { | |
1211 | (*_bfd_error_handler) | |
d003868e AM |
1212 | (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"), |
1213 | abfd, | |
30667bf3 AM |
1214 | elf_hppa_howto_table[r_type].name); |
1215 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1216 | return FALSE; |
30667bf3 AM |
1217 | } |
1218 | /* Fall through. */ | |
1219 | ||
1220 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1221 | case R_PARISC_DIR17R: | |
47d89dba AM |
1222 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1223 | case R_PARISC_DIR14R: | |
30667bf3 | 1224 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
c46b7515 | 1225 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1226 | /* We may want to output a dynamic relocation later. */ |
1227 | need_entry = NEED_DYNREL; | |
1228 | break; | |
1229 | ||
1230 | /* This relocation describes the C++ object vtable hierarchy. | |
1231 | Reconstruct it for later use during GC. */ | |
1232 | case R_PARISC_GNU_VTINHERIT: | |
a63e02c7 | 1233 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset)) |
b34976b6 | 1234 | return FALSE; |
30667bf3 AM |
1235 | continue; |
1236 | ||
1237 | /* This relocation describes which C++ vtable entries are actually | |
1238 | used. Record for later use during GC. */ | |
1239 | case R_PARISC_GNU_VTENTRY: | |
a63e02c7 | 1240 | if (!bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend)) |
b34976b6 | 1241 | return FALSE; |
30667bf3 AM |
1242 | continue; |
1243 | ||
1244 | default: | |
1245 | continue; | |
1246 | } | |
1247 | ||
1248 | /* Now carry out our orders. */ | |
1249 | if (need_entry & NEED_GOT) | |
1250 | { | |
1251 | /* Allocate space for a GOT entry, as well as a dynamic | |
25f72752 | 1252 | relocation for this entry. */ |
83c81bfe | 1253 | if (htab->sgot == NULL) |
30667bf3 | 1254 | { |
a63e02c7 DA |
1255 | if (htab->etab.dynobj == NULL) |
1256 | htab->etab.dynobj = abfd; | |
1257 | if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info)) | |
b34976b6 | 1258 | return FALSE; |
30667bf3 AM |
1259 | } |
1260 | ||
875c0872 | 1261 | if (hh != NULL) |
30667bf3 | 1262 | { |
a63e02c7 | 1263 | hh->eh.got.refcount += 1; |
30667bf3 AM |
1264 | } |
1265 | else | |
1266 | { | |
3ac8354b | 1267 | bfd_signed_vma *local_got_refcounts; |
875c0872 | 1268 | /* This is a global offset table entry for a local symbol. */ |
3ac8354b | 1269 | local_got_refcounts = elf_local_got_refcounts (abfd); |
30667bf3 AM |
1270 | if (local_got_refcounts == NULL) |
1271 | { | |
dc810e39 | 1272 | bfd_size_type size; |
30667bf3 | 1273 | |
74d1c347 AM |
1274 | /* Allocate space for local got offsets and local |
1275 | plt offsets. Done this way to save polluting | |
1276 | elf_obj_tdata with another target specific | |
1277 | pointer. */ | |
dc810e39 AM |
1278 | size = symtab_hdr->sh_info; |
1279 | size *= 2 * sizeof (bfd_signed_vma); | |
c39a58e6 | 1280 | local_got_refcounts = bfd_zalloc (abfd, size); |
30667bf3 | 1281 | if (local_got_refcounts == NULL) |
b34976b6 | 1282 | return FALSE; |
30667bf3 | 1283 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
30667bf3 | 1284 | } |
ebe50bae | 1285 | local_got_refcounts[r_symndx] += 1; |
30667bf3 AM |
1286 | } |
1287 | } | |
1288 | ||
1289 | if (need_entry & NEED_PLT) | |
1290 | { | |
1291 | /* If we are creating a shared library, and this is a reloc | |
1292 | against a weak symbol or a global symbol in a dynamic | |
1293 | object, then we will be creating an import stub and a | |
1294 | .plt entry for the symbol. Similarly, on a normal link | |
1295 | to symbols defined in a dynamic object we'll need the | |
1296 | import stub and a .plt entry. We don't know yet whether | |
1297 | the symbol is defined or not, so make an entry anyway and | |
1298 | clean up later in adjust_dynamic_symbol. */ | |
1299 | if ((sec->flags & SEC_ALLOC) != 0) | |
1300 | { | |
875c0872 | 1301 | if (hh != NULL) |
30667bf3 | 1302 | { |
a63e02c7 DA |
1303 | hh->eh.needs_plt = 1; |
1304 | hh->eh.plt.refcount += 1; | |
74d1c347 | 1305 | |
36605136 AM |
1306 | /* If this .plt entry is for a plabel, mark it so |
1307 | that adjust_dynamic_symbol will keep the entry | |
1308 | even if it appears to be local. */ | |
74d1c347 | 1309 | if (need_entry & PLT_PLABEL) |
875c0872 | 1310 | hh->plabel = 1; |
74d1c347 AM |
1311 | } |
1312 | else if (need_entry & PLT_PLABEL) | |
1313 | { | |
3ac8354b | 1314 | bfd_signed_vma *local_got_refcounts; |
68fb2e56 | 1315 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 | 1316 | |
3ac8354b | 1317 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1318 | if (local_got_refcounts == NULL) |
1319 | { | |
dc810e39 | 1320 | bfd_size_type size; |
74d1c347 AM |
1321 | |
1322 | /* Allocate space for local got offsets and local | |
1323 | plt offsets. */ | |
dc810e39 AM |
1324 | size = symtab_hdr->sh_info; |
1325 | size *= 2 * sizeof (bfd_signed_vma); | |
c39a58e6 | 1326 | local_got_refcounts = bfd_zalloc (abfd, size); |
74d1c347 | 1327 | if (local_got_refcounts == NULL) |
b34976b6 | 1328 | return FALSE; |
74d1c347 | 1329 | elf_local_got_refcounts (abfd) = local_got_refcounts; |
74d1c347 | 1330 | } |
68fb2e56 AM |
1331 | local_plt_refcounts = (local_got_refcounts |
1332 | + symtab_hdr->sh_info); | |
ebe50bae | 1333 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1334 | } |
30667bf3 AM |
1335 | } |
1336 | } | |
1337 | ||
98ceb8ce | 1338 | if (need_entry & NEED_DYNREL) |
30667bf3 AM |
1339 | { |
1340 | /* Flag this symbol as having a non-got, non-plt reference | |
1341 | so that we generate copy relocs if it turns out to be | |
1342 | dynamic. */ | |
875c0872 | 1343 | if (hh != NULL && !info->shared) |
a63e02c7 | 1344 | hh->eh.non_got_ref = 1; |
30667bf3 AM |
1345 | |
1346 | /* If we are creating a shared library then we need to copy | |
1347 | the reloc into the shared library. However, if we are | |
1348 | linking with -Bsymbolic, we need only copy absolute | |
1349 | relocs or relocs against symbols that are not defined in | |
1350 | an object we are including in the link. PC- or DP- or | |
1351 | DLT-relative relocs against any local sym or global sym | |
1352 | with DEF_REGULAR set, can be discarded. At this point we | |
1353 | have not seen all the input files, so it is possible that | |
1354 | DEF_REGULAR is not set now but will be set later (it is | |
1355 | never cleared). We account for that possibility below by | |
98ceb8ce | 1356 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1357 | hash table entry. |
1358 | ||
1359 | A similar situation to the -Bsymbolic case occurs when | |
1360 | creating shared libraries and symbol visibility changes | |
1361 | render the symbol local. | |
1362 | ||
1363 | As it turns out, all the relocs we will be creating here | |
1364 | are absolute, so we cannot remove them on -Bsymbolic | |
1365 | links or visibility changes anyway. A STUB_REL reloc | |
1366 | is absolute too, as in that case it is the reloc in the | |
1367 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1368 | reloc in the branch. |
1369 | ||
1370 | If on the other hand, we are creating an executable, we | |
1371 | may need to keep relocations for symbols satisfied by a | |
1372 | dynamic library if we manage to avoid copy relocs for the | |
1373 | symbol. */ | |
446f2863 AM |
1374 | if ((info->shared |
1375 | && (sec->flags & SEC_ALLOC) != 0 | |
1376 | && (IS_ABSOLUTE_RELOC (r_type) | |
875c0872 | 1377 | || (hh != NULL |
446f2863 | 1378 | && (!info->symbolic |
a63e02c7 DA |
1379 | || hh->eh.root.type == bfd_link_hash_defweak |
1380 | || !hh->eh.def_regular)))) | |
4fc8051d AM |
1381 | || (ELIMINATE_COPY_RELOCS |
1382 | && !info->shared | |
446f2863 | 1383 | && (sec->flags & SEC_ALLOC) != 0 |
875c0872 | 1384 | && hh != NULL |
a63e02c7 DA |
1385 | && (hh->eh.root.type == bfd_link_hash_defweak |
1386 | || !hh->eh.def_regular))) | |
30667bf3 | 1387 | { |
875c0872 DA |
1388 | struct elf32_hppa_dyn_reloc_entry *hdh_p; |
1389 | struct elf32_hppa_dyn_reloc_entry **hdh_head; | |
ec338859 | 1390 | |
30667bf3 AM |
1391 | /* Create a reloc section in dynobj and make room for |
1392 | this reloc. */ | |
98ceb8ce | 1393 | if (sreloc == NULL) |
30667bf3 AM |
1394 | { |
1395 | char *name; | |
3ac8354b | 1396 | bfd *dynobj; |
30667bf3 | 1397 | |
98ceb8ce AM |
1398 | name = (bfd_elf_string_from_elf_section |
1399 | (abfd, | |
1400 | elf_elfheader (abfd)->e_shstrndx, | |
1401 | elf_section_data (sec)->rel_hdr.sh_name)); | |
30667bf3 AM |
1402 | if (name == NULL) |
1403 | { | |
1404 | (*_bfd_error_handler) | |
1405 | (_("Could not find relocation section for %s"), | |
1406 | sec->name); | |
1407 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1408 | return FALSE; |
30667bf3 AM |
1409 | } |
1410 | ||
a63e02c7 DA |
1411 | if (htab->etab.dynobj == NULL) |
1412 | htab->etab.dynobj = abfd; | |
3ac8354b | 1413 | |
a63e02c7 | 1414 | dynobj = htab->etab.dynobj; |
98ceb8ce AM |
1415 | sreloc = bfd_get_section_by_name (dynobj, name); |
1416 | if (sreloc == NULL) | |
30667bf3 AM |
1417 | { |
1418 | flagword flags; | |
1419 | ||
30667bf3 AM |
1420 | flags = (SEC_HAS_CONTENTS | SEC_READONLY |
1421 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
1422 | if ((sec->flags & SEC_ALLOC) != 0) | |
1423 | flags |= SEC_ALLOC | SEC_LOAD; | |
3496cb2a L |
1424 | sreloc = bfd_make_section_with_flags (dynobj, |
1425 | name, | |
1426 | flags); | |
98ceb8ce | 1427 | if (sreloc == NULL |
98ceb8ce | 1428 | || !bfd_set_section_alignment (dynobj, sreloc, 2)) |
b34976b6 | 1429 | return FALSE; |
30667bf3 | 1430 | } |
30667bf3 | 1431 | |
98ceb8ce | 1432 | elf_section_data (sec)->sreloc = sreloc; |
30667bf3 AM |
1433 | } |
1434 | ||
98ceb8ce AM |
1435 | /* If this is a global symbol, we count the number of |
1436 | relocations we need for this symbol. */ | |
875c0872 | 1437 | if (hh != NULL) |
30667bf3 | 1438 | { |
875c0872 | 1439 | hdh_head = &hh->dyn_relocs; |
ec338859 AM |
1440 | } |
1441 | else | |
1442 | { | |
1443 | /* Track dynamic relocs needed for local syms too. | |
1444 | We really need local syms available to do this | |
1445 | easily. Oh well. */ | |
1446 | ||
875c0872 | 1447 | asection *sr; |
6edfbbad DJ |
1448 | void *vpp; |
1449 | ||
875c0872 DA |
1450 | sr = bfd_section_from_r_symndx (abfd, &htab->sym_sec, |
1451 | sec, r_symndx); | |
1452 | if (sr == NULL) | |
b34976b6 | 1453 | return FALSE; |
30667bf3 | 1454 | |
6edfbbad DJ |
1455 | vpp = &elf_section_data (sr)->local_dynrel; |
1456 | hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp; | |
ec338859 AM |
1457 | } |
1458 | ||
875c0872 DA |
1459 | hdh_p = *hdh_head; |
1460 | if (hdh_p == NULL || hdh_p->sec != sec) | |
ec338859 | 1461 | { |
a63e02c7 | 1462 | hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p); |
875c0872 | 1463 | if (hdh_p == NULL) |
b34976b6 | 1464 | return FALSE; |
a63e02c7 | 1465 | hdh_p->hdh_next = *hdh_head; |
875c0872 DA |
1466 | *hdh_head = hdh_p; |
1467 | hdh_p->sec = sec; | |
1468 | hdh_p->count = 0; | |
98ceb8ce | 1469 | #if RELATIVE_DYNRELOCS |
875c0872 | 1470 | hdh_p->relative_count = 0; |
98ceb8ce | 1471 | #endif |
ec338859 | 1472 | } |
98ceb8ce | 1473 | |
875c0872 | 1474 | hdh_p->count += 1; |
98ceb8ce | 1475 | #if RELATIVE_DYNRELOCS |
ec338859 | 1476 | if (!IS_ABSOLUTE_RELOC (rtype)) |
875c0872 | 1477 | hdh_p->relative_count += 1; |
98ceb8ce | 1478 | #endif |
30667bf3 AM |
1479 | } |
1480 | } | |
1481 | } | |
edd21aca | 1482 | |
b34976b6 | 1483 | return TRUE; |
edd21aca AM |
1484 | } |
1485 | ||
30667bf3 AM |
1486 | /* Return the section that should be marked against garbage collection |
1487 | for a given relocation. */ | |
1488 | ||
1489 | static asection * | |
c39a58e6 AM |
1490 | elf32_hppa_gc_mark_hook (asection *sec, |
1491 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
875c0872 DA |
1492 | Elf_Internal_Rela *rela, |
1493 | struct elf_link_hash_entry *hh, | |
c39a58e6 | 1494 | Elf_Internal_Sym *sym) |
30667bf3 | 1495 | { |
875c0872 | 1496 | if (hh != NULL) |
30667bf3 | 1497 | { |
875c0872 | 1498 | switch ((unsigned int) ELF32_R_TYPE (rela->r_info)) |
30667bf3 AM |
1499 | { |
1500 | case R_PARISC_GNU_VTINHERIT: | |
1501 | case R_PARISC_GNU_VTENTRY: | |
1502 | break; | |
1503 | ||
1504 | default: | |
875c0872 | 1505 | switch (hh->root.type) |
30667bf3 AM |
1506 | { |
1507 | case bfd_link_hash_defined: | |
1508 | case bfd_link_hash_defweak: | |
875c0872 | 1509 | return hh->root.u.def.section; |
30667bf3 AM |
1510 | |
1511 | case bfd_link_hash_common: | |
875c0872 | 1512 | return hh->root.u.c.p->section; |
30667bf3 AM |
1513 | |
1514 | default: | |
1515 | break; | |
1516 | } | |
1517 | } | |
1518 | } | |
1519 | else | |
1e2f5b6e | 1520 | return bfd_section_from_elf_index (sec->owner, sym->st_shndx); |
30667bf3 AM |
1521 | |
1522 | return NULL; | |
1523 | } | |
1524 | ||
30667bf3 AM |
1525 | /* Update the got and plt entry reference counts for the section being |
1526 | removed. */ | |
edd21aca | 1527 | |
b34976b6 | 1528 | static bfd_boolean |
c39a58e6 AM |
1529 | elf32_hppa_gc_sweep_hook (bfd *abfd, |
1530 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1531 | asection *sec, | |
1532 | const Elf_Internal_Rela *relocs) | |
edd21aca | 1533 | { |
30667bf3 | 1534 | Elf_Internal_Shdr *symtab_hdr; |
875c0872 | 1535 | struct elf_link_hash_entry **eh_syms; |
30667bf3 | 1536 | bfd_signed_vma *local_got_refcounts; |
74d1c347 | 1537 | bfd_signed_vma *local_plt_refcounts; |
875c0872 | 1538 | const Elf_Internal_Rela *rela, *relend; |
30667bf3 | 1539 | |
ec338859 | 1540 | elf_section_data (sec)->local_dynrel = NULL; |
98ceb8ce | 1541 | |
30667bf3 | 1542 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
875c0872 | 1543 | eh_syms = elf_sym_hashes (abfd); |
30667bf3 | 1544 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1545 | local_plt_refcounts = local_got_refcounts; |
1546 | if (local_plt_refcounts != NULL) | |
1547 | local_plt_refcounts += symtab_hdr->sh_info; | |
30667bf3 | 1548 | |
30667bf3 | 1549 | relend = relocs + sec->reloc_count; |
875c0872 | 1550 | for (rela = relocs; rela < relend; rela++) |
26e41594 AM |
1551 | { |
1552 | unsigned long r_symndx; | |
1553 | unsigned int r_type; | |
875c0872 | 1554 | struct elf_link_hash_entry *eh = NULL; |
26e41594 | 1555 | |
875c0872 | 1556 | r_symndx = ELF32_R_SYM (rela->r_info); |
26e41594 AM |
1557 | if (r_symndx >= symtab_hdr->sh_info) |
1558 | { | |
875c0872 DA |
1559 | struct elf32_hppa_link_hash_entry *hh; |
1560 | struct elf32_hppa_dyn_reloc_entry **hdh_pp; | |
1561 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
26e41594 | 1562 | |
875c0872 DA |
1563 | eh = eh_syms[r_symndx - symtab_hdr->sh_info]; |
1564 | while (eh->root.type == bfd_link_hash_indirect | |
1565 | || eh->root.type == bfd_link_hash_warning) | |
1566 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
1567 | hh = hppa_elf_hash_entry (eh); | |
26e41594 | 1568 | |
a63e02c7 | 1569 | for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next) |
875c0872 | 1570 | if (hdh_p->sec == sec) |
26e41594 AM |
1571 | { |
1572 | /* Everything must go for SEC. */ | |
a63e02c7 | 1573 | *hdh_pp = hdh_p->hdh_next; |
26e41594 AM |
1574 | break; |
1575 | } | |
1576 | } | |
1577 | ||
875c0872 | 1578 | r_type = ELF32_R_TYPE (rela->r_info); |
26e41594 AM |
1579 | switch (r_type) |
1580 | { | |
1581 | case R_PARISC_DLTIND14F: | |
1582 | case R_PARISC_DLTIND14R: | |
1583 | case R_PARISC_DLTIND21L: | |
875c0872 | 1584 | if (eh != NULL) |
26e41594 | 1585 | { |
875c0872 DA |
1586 | if (eh->got.refcount > 0) |
1587 | eh->got.refcount -= 1; | |
26e41594 AM |
1588 | } |
1589 | else if (local_got_refcounts != NULL) | |
1590 | { | |
1591 | if (local_got_refcounts[r_symndx] > 0) | |
1592 | local_got_refcounts[r_symndx] -= 1; | |
1593 | } | |
1594 | break; | |
98ceb8ce | 1595 | |
26e41594 AM |
1596 | case R_PARISC_PCREL12F: |
1597 | case R_PARISC_PCREL17C: | |
1598 | case R_PARISC_PCREL17F: | |
1599 | case R_PARISC_PCREL22F: | |
875c0872 | 1600 | if (eh != NULL) |
26e41594 | 1601 | { |
875c0872 DA |
1602 | if (eh->plt.refcount > 0) |
1603 | eh->plt.refcount -= 1; | |
26e41594 AM |
1604 | } |
1605 | break; | |
1606 | ||
1607 | case R_PARISC_PLABEL14R: | |
1608 | case R_PARISC_PLABEL21L: | |
1609 | case R_PARISC_PLABEL32: | |
875c0872 | 1610 | if (eh != NULL) |
26e41594 | 1611 | { |
875c0872 DA |
1612 | if (eh->plt.refcount > 0) |
1613 | eh->plt.refcount -= 1; | |
26e41594 AM |
1614 | } |
1615 | else if (local_plt_refcounts != NULL) | |
1616 | { | |
1617 | if (local_plt_refcounts[r_symndx] > 0) | |
1618 | local_plt_refcounts[r_symndx] -= 1; | |
1619 | } | |
1620 | break; | |
1621 | ||
1622 | default: | |
1623 | break; | |
1624 | } | |
1625 | } | |
252b5132 | 1626 | |
b34976b6 | 1627 | return TRUE; |
252b5132 RH |
1628 | } |
1629 | ||
edfc032f AM |
1630 | /* Support for core dump NOTE sections. */ |
1631 | ||
1632 | static bfd_boolean | |
1633 | elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
1634 | { | |
1635 | int offset; | |
1636 | size_t size; | |
1637 | ||
1638 | switch (note->descsz) | |
1639 | { | |
1640 | default: | |
1641 | return FALSE; | |
1642 | ||
1643 | case 396: /* Linux/hppa */ | |
1644 | /* pr_cursig */ | |
1645 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
1646 | ||
1647 | /* pr_pid */ | |
1648 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
1649 | ||
1650 | /* pr_reg */ | |
1651 | offset = 72; | |
1652 | size = 320; | |
1653 | ||
1654 | break; | |
1655 | } | |
1656 | ||
1657 | /* Make a ".reg/999" section. */ | |
1658 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
1659 | size, note->descpos + offset); | |
1660 | } | |
1661 | ||
1662 | static bfd_boolean | |
1663 | elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
1664 | { | |
1665 | switch (note->descsz) | |
1666 | { | |
1667 | default: | |
1668 | return FALSE; | |
1669 | ||
1670 | case 124: /* Linux/hppa elf_prpsinfo. */ | |
1671 | elf_tdata (abfd)->core_program | |
1672 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
1673 | elf_tdata (abfd)->core_command | |
1674 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
1675 | } | |
1676 | ||
1677 | /* Note that for some reason, a spurious space is tacked | |
1678 | onto the end of the args in some (at least one anyway) | |
1679 | implementations, so strip it off if it exists. */ | |
1680 | { | |
1681 | char *command = elf_tdata (abfd)->core_command; | |
1682 | int n = strlen (command); | |
1683 | ||
1684 | if (0 < n && command[n - 1] == ' ') | |
1685 | command[n - 1] = '\0'; | |
1686 | } | |
1687 | ||
1688 | return TRUE; | |
1689 | } | |
1690 | ||
74d1c347 AM |
1691 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1692 | plabels. */ | |
1693 | ||
1694 | static void | |
c39a58e6 | 1695 | elf32_hppa_hide_symbol (struct bfd_link_info *info, |
875c0872 | 1696 | struct elf_link_hash_entry *eh, |
c39a58e6 | 1697 | bfd_boolean force_local) |
74d1c347 | 1698 | { |
e5094212 AM |
1699 | if (force_local) |
1700 | { | |
875c0872 DA |
1701 | eh->forced_local = 1; |
1702 | if (eh->dynindx != -1) | |
e5094212 | 1703 | { |
875c0872 | 1704 | eh->dynindx = -1; |
e5094212 | 1705 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, |
875c0872 | 1706 | eh->dynstr_index); |
e5094212 AM |
1707 | } |
1708 | } | |
1709 | ||
875c0872 | 1710 | if (! hppa_elf_hash_entry(eh)->plabel) |
74d1c347 | 1711 | { |
875c0872 DA |
1712 | eh->needs_plt = 0; |
1713 | eh->plt = elf_hash_table (info)->init_plt_refcount; | |
74d1c347 AM |
1714 | } |
1715 | } | |
1716 | ||
30667bf3 AM |
1717 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1718 | regular object. The current definition is in some section of the | |
1719 | dynamic object, but we're not including those sections. We have to | |
1720 | change the definition to something the rest of the link can | |
1721 | understand. */ | |
252b5132 | 1722 | |
b34976b6 | 1723 | static bfd_boolean |
c39a58e6 | 1724 | elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info, |
875c0872 | 1725 | struct elf_link_hash_entry *eh) |
252b5132 | 1726 | { |
83c81bfe | 1727 | struct elf32_hppa_link_hash_table *htab; |
875c0872 | 1728 | asection *sec; |
3ac8354b | 1729 | unsigned int power_of_two; |
30667bf3 AM |
1730 | |
1731 | /* If this is a function, put it in the procedure linkage table. We | |
067fa4a6 | 1732 | will fill in the contents of the procedure linkage table later. */ |
875c0872 DA |
1733 | if (eh->type == STT_FUNC |
1734 | || eh->needs_plt) | |
30667bf3 | 1735 | { |
875c0872 DA |
1736 | if (eh->plt.refcount <= 0 |
1737 | || (eh->def_regular | |
1738 | && eh->root.type != bfd_link_hash_defweak | |
1739 | && ! hppa_elf_hash_entry (eh)->plabel | |
30667bf3 AM |
1740 | && (!info->shared || info->symbolic))) |
1741 | { | |
1742 | /* The .plt entry is not needed when: | |
1743 | a) Garbage collection has removed all references to the | |
1744 | symbol, or | |
1745 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1746 | object, and it's not a weak definition, nor is the symbol |
1747 | used by a plabel relocation. Either this object is the | |
1748 | application or we are doing a shared symbolic link. */ | |
1749 | ||
875c0872 DA |
1750 | eh->plt.offset = (bfd_vma) -1; |
1751 | eh->needs_plt = 0; | |
30667bf3 | 1752 | } |
4dc86686 | 1753 | |
b34976b6 | 1754 | return TRUE; |
30667bf3 | 1755 | } |
bbd7ec4a | 1756 | else |
875c0872 | 1757 | eh->plt.offset = (bfd_vma) -1; |
edd21aca | 1758 | |
30667bf3 AM |
1759 | /* If this is a weak symbol, and there is a real definition, the |
1760 | processor independent code will have arranged for us to see the | |
1761 | real definition first, and we can just use the same value. */ | |
875c0872 | 1762 | if (eh->u.weakdef != NULL) |
edd21aca | 1763 | { |
875c0872 DA |
1764 | if (eh->u.weakdef->root.type != bfd_link_hash_defined |
1765 | && eh->u.weakdef->root.type != bfd_link_hash_defweak) | |
49e9d0d3 | 1766 | abort (); |
875c0872 DA |
1767 | eh->root.u.def.section = eh->u.weakdef->root.u.def.section; |
1768 | eh->root.u.def.value = eh->u.weakdef->root.u.def.value; | |
4fc8051d | 1769 | if (ELIMINATE_COPY_RELOCS) |
875c0872 | 1770 | eh->non_got_ref = eh->u.weakdef->non_got_ref; |
b34976b6 | 1771 | return TRUE; |
30667bf3 | 1772 | } |
edd21aca | 1773 | |
30667bf3 AM |
1774 | /* This is a reference to a symbol defined by a dynamic object which |
1775 | is not a function. */ | |
1776 | ||
1777 | /* If we are creating a shared library, we must presume that the | |
1778 | only references to the symbol are via the global offset table. | |
1779 | For such cases we need not do anything here; the relocations will | |
1780 | be handled correctly by relocate_section. */ | |
1781 | if (info->shared) | |
b34976b6 | 1782 | return TRUE; |
30667bf3 AM |
1783 | |
1784 | /* If there are no references to this symbol that do not use the | |
1785 | GOT, we don't need to generate a copy reloc. */ | |
875c0872 | 1786 | if (!eh->non_got_ref) |
b34976b6 | 1787 | return TRUE; |
30667bf3 | 1788 | |
4fc8051d | 1789 | if (ELIMINATE_COPY_RELOCS) |
ebe50bae | 1790 | { |
875c0872 DA |
1791 | struct elf32_hppa_link_hash_entry *hh; |
1792 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
ebe50bae | 1793 | |
875c0872 | 1794 | hh = hppa_elf_hash_entry (eh); |
a63e02c7 | 1795 | for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next) |
4fc8051d | 1796 | { |
875c0872 DA |
1797 | sec = hdh_p->sec->output_section; |
1798 | if (sec != NULL && (sec->flags & SEC_READONLY) != 0) | |
4fc8051d AM |
1799 | break; |
1800 | } | |
1801 | ||
1802 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1803 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
875c0872 | 1804 | if (hdh_p == NULL) |
4fc8051d | 1805 | { |
875c0872 | 1806 | eh->non_got_ref = 0; |
4fc8051d AM |
1807 | return TRUE; |
1808 | } | |
ebe50bae AM |
1809 | } |
1810 | ||
909272ee AM |
1811 | if (eh->size == 0) |
1812 | { | |
1813 | (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), | |
1814 | eh->root.root.string); | |
1815 | return TRUE; | |
1816 | } | |
1817 | ||
30667bf3 AM |
1818 | /* We must allocate the symbol in our .dynbss section, which will |
1819 | become part of the .bss section of the executable. There will be | |
1820 | an entry for this symbol in the .dynsym section. The dynamic | |
1821 | object will contain position independent code, so all references | |
1822 | from the dynamic object to this symbol will go through the global | |
1823 | offset table. The dynamic linker will use the .dynsym entry to | |
1824 | determine the address it must put in the global offset table, so | |
1825 | both the dynamic object and the regular object will refer to the | |
1826 | same memory location for the variable. */ | |
1827 | ||
3ac8354b | 1828 | htab = hppa_link_hash_table (info); |
30667bf3 AM |
1829 | |
1830 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1831 | copy the initial value out of the dynamic object and into the | |
3ac8354b | 1832 | runtime process image. */ |
875c0872 | 1833 | if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0) |
30667bf3 | 1834 | { |
eea6121a | 1835 | htab->srelbss->size += sizeof (Elf32_External_Rela); |
875c0872 | 1836 | eh->needs_copy = 1; |
edd21aca | 1837 | } |
252b5132 | 1838 | |
3ac8354b AM |
1839 | /* We need to figure out the alignment required for this symbol. I |
1840 | have no idea how other ELF linkers handle this. */ | |
30667bf3 | 1841 | |
875c0872 | 1842 | power_of_two = bfd_log2 (eh->size); |
3ac8354b AM |
1843 | if (power_of_two > 3) |
1844 | power_of_two = 3; | |
1845 | ||
1846 | /* Apply the required alignment. */ | |
875c0872 DA |
1847 | sec = htab->sdynbss; |
1848 | sec->size = BFD_ALIGN (sec->size, (bfd_size_type) (1 << power_of_two)); | |
a63e02c7 | 1849 | if (power_of_two > bfd_get_section_alignment (htab->etab.dynobj, sec)) |
3ac8354b | 1850 | { |
a63e02c7 | 1851 | if (! bfd_set_section_alignment (htab->etab.dynobj, sec, power_of_two)) |
b34976b6 | 1852 | return FALSE; |
3ac8354b | 1853 | } |
30667bf3 | 1854 | |
30667bf3 | 1855 | /* Define the symbol as being at this point in the section. */ |
875c0872 DA |
1856 | eh->root.u.def.section = sec; |
1857 | eh->root.u.def.value = sec->size; | |
edd21aca | 1858 | |
30667bf3 | 1859 | /* Increment the section size to make room for the symbol. */ |
875c0872 | 1860 | sec->size += eh->size; |
252b5132 | 1861 | |
b34976b6 | 1862 | return TRUE; |
252b5132 RH |
1863 | } |
1864 | ||
e5ee5df1 | 1865 | /* Allocate space in the .plt for entries that won't have relocations. |
a252afa4 | 1866 | ie. plabel entries. */ |
a8d02d66 | 1867 | |
b34976b6 | 1868 | static bfd_boolean |
875c0872 | 1869 | allocate_plt_static (struct elf_link_hash_entry *eh, void *inf) |
a8d02d66 AM |
1870 | { |
1871 | struct bfd_link_info *info; | |
1872 | struct elf32_hppa_link_hash_table *htab; | |
875c0872 DA |
1873 | struct elf32_hppa_link_hash_entry *hh; |
1874 | asection *sec; | |
a8d02d66 | 1875 | |
875c0872 | 1876 | if (eh->root.type == bfd_link_hash_indirect) |
b34976b6 | 1877 | return TRUE; |
a8d02d66 | 1878 | |
875c0872 DA |
1879 | if (eh->root.type == bfd_link_hash_warning) |
1880 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
e92d460e | 1881 | |
875c0872 DA |
1882 | info = (struct bfd_link_info *) inf; |
1883 | hh = hppa_elf_hash_entry(eh); | |
a8d02d66 | 1884 | htab = hppa_link_hash_table (info); |
a63e02c7 | 1885 | if (htab->etab.dynamic_sections_created |
875c0872 | 1886 | && eh->plt.refcount > 0) |
e5ee5df1 AM |
1887 | { |
1888 | /* Make sure this symbol is output as a dynamic symbol. | |
1889 | Undefined weak syms won't yet be marked as dynamic. */ | |
875c0872 DA |
1890 | if (eh->dynindx == -1 |
1891 | && !eh->forced_local | |
1892 | && eh->type != STT_PARISC_MILLI) | |
a8d02d66 | 1893 | { |
875c0872 | 1894 | if (! bfd_elf_link_record_dynamic_symbol (info, eh)) |
b34976b6 | 1895 | return FALSE; |
e5ee5df1 AM |
1896 | } |
1897 | ||
875c0872 | 1898 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh)) |
e5ee5df1 | 1899 | { |
067fa4a6 AM |
1900 | /* Allocate these later. From this point on, h->plabel |
1901 | means that the plt entry is only used by a plabel. | |
1902 | We'll be using a normal plt entry for this symbol, so | |
1903 | clear the plabel indicator. */ | |
875c0872 DA |
1904 | |
1905 | hh->plabel = 0; | |
e5ee5df1 | 1906 | } |
875c0872 | 1907 | else if (hh->plabel) |
e5ee5df1 AM |
1908 | { |
1909 | /* Make an entry in the .plt section for plabel references | |
1910 | that won't have a .plt entry for other reasons. */ | |
875c0872 DA |
1911 | sec = htab->splt; |
1912 | eh->plt.offset = sec->size; | |
1913 | sec->size += PLT_ENTRY_SIZE; | |
a8d02d66 AM |
1914 | } |
1915 | else | |
e5ee5df1 AM |
1916 | { |
1917 | /* No .plt entry needed. */ | |
875c0872 DA |
1918 | eh->plt.offset = (bfd_vma) -1; |
1919 | eh->needs_plt = 0; | |
e5ee5df1 AM |
1920 | } |
1921 | } | |
1922 | else | |
1923 | { | |
875c0872 DA |
1924 | eh->plt.offset = (bfd_vma) -1; |
1925 | eh->needs_plt = 0; | |
a8d02d66 AM |
1926 | } |
1927 | ||
b34976b6 | 1928 | return TRUE; |
a8d02d66 AM |
1929 | } |
1930 | ||
4dc86686 AM |
1931 | /* Allocate space in .plt, .got and associated reloc sections for |
1932 | global syms. */ | |
1933 | ||
b34976b6 | 1934 | static bfd_boolean |
875c0872 | 1935 | allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf) |
4dc86686 AM |
1936 | { |
1937 | struct bfd_link_info *info; | |
83c81bfe | 1938 | struct elf32_hppa_link_hash_table *htab; |
875c0872 DA |
1939 | asection *sec; |
1940 | struct elf32_hppa_link_hash_entry *hh; | |
1941 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
4dc86686 | 1942 | |
875c0872 | 1943 | if (eh->root.type == bfd_link_hash_indirect) |
b34976b6 | 1944 | return TRUE; |
73a74a62 | 1945 | |
875c0872 DA |
1946 | if (eh->root.type == bfd_link_hash_warning) |
1947 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
e92d460e | 1948 | |
c39a58e6 | 1949 | info = inf; |
83c81bfe | 1950 | htab = hppa_link_hash_table (info); |
875c0872 DA |
1951 | hh = hppa_elf_hash_entry (eh); |
1952 | ||
a63e02c7 | 1953 | if (htab->etab.dynamic_sections_created |
875c0872 DA |
1954 | && eh->plt.offset != (bfd_vma) -1 |
1955 | && !hh->plabel | |
1956 | && eh->plt.refcount > 0) | |
4dc86686 | 1957 | { |
e5ee5df1 | 1958 | /* Make an entry in the .plt section. */ |
875c0872 DA |
1959 | sec = htab->splt; |
1960 | eh->plt.offset = sec->size; | |
1961 | sec->size += PLT_ENTRY_SIZE; | |
3ac8354b | 1962 | |
e5ee5df1 | 1963 | /* We also need to make an entry in the .rela.plt section. */ |
eea6121a | 1964 | htab->srelplt->size += sizeof (Elf32_External_Rela); |
e5ee5df1 | 1965 | htab->need_plt_stub = 1; |
4dc86686 | 1966 | } |
edd21aca | 1967 | |
875c0872 | 1968 | if (eh->got.refcount > 0) |
4dc86686 | 1969 | { |
446f2863 AM |
1970 | /* Make sure this symbol is output as a dynamic symbol. |
1971 | Undefined weak syms won't yet be marked as dynamic. */ | |
875c0872 DA |
1972 | if (eh->dynindx == -1 |
1973 | && !eh->forced_local | |
1974 | && eh->type != STT_PARISC_MILLI) | |
446f2863 | 1975 | { |
875c0872 | 1976 | if (! bfd_elf_link_record_dynamic_symbol (info, eh)) |
b34976b6 | 1977 | return FALSE; |
446f2863 AM |
1978 | } |
1979 | ||
875c0872 DA |
1980 | sec = htab->sgot; |
1981 | eh->got.offset = sec->size; | |
1982 | sec->size += GOT_ENTRY_SIZE; | |
a63e02c7 | 1983 | if (htab->etab.dynamic_sections_created |
ce757d15 | 1984 | && (info->shared |
875c0872 DA |
1985 | || (eh->dynindx != -1 |
1986 | && !eh->forced_local))) | |
ce757d15 | 1987 | { |
eea6121a | 1988 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
ce757d15 | 1989 | } |
4dc86686 AM |
1990 | } |
1991 | else | |
875c0872 | 1992 | eh->got.offset = (bfd_vma) -1; |
30667bf3 | 1993 | |
875c0872 | 1994 | if (hh->dyn_relocs == NULL) |
b34976b6 | 1995 | return TRUE; |
30667bf3 | 1996 | |
98ceb8ce AM |
1997 | /* If this is a -Bsymbolic shared link, then we need to discard all |
1998 | space allocated for dynamic pc-relative relocs against symbols | |
1999 | defined in a regular object. For the normal shared case, discard | |
2000 | space for relocs that have become local due to symbol visibility | |
2001 | changes. */ | |
2002 | if (info->shared) | |
446f2863 | 2003 | { |
98ceb8ce | 2004 | #if RELATIVE_DYNRELOCS |
875c0872 | 2005 | if (SYMBOL_CALLS_LOCAL (info, eh)) |
446f2863 | 2006 | { |
875c0872 | 2007 | struct elf32_hppa_dyn_reloc_entry **hdh_pp; |
30667bf3 | 2008 | |
875c0872 | 2009 | for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; ) |
98ceb8ce | 2010 | { |
875c0872 DA |
2011 | hdh_p->count -= hdh_p->relative_count; |
2012 | hdh_p->relative_count = 0; | |
2013 | if (hdh_p->count == 0) | |
a63e02c7 | 2014 | *hdh_pp = hdh_p->hdh_next; |
98ceb8ce | 2015 | else |
a63e02c7 | 2016 | hdh_pp = &hdh_p->hdh_next; |
98ceb8ce AM |
2017 | } |
2018 | } | |
2019 | #endif | |
4fc8051d AM |
2020 | |
2021 | /* Also discard relocs on undefined weak syms with non-default | |
2022 | visibility. */ | |
875c0872 DA |
2023 | if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT |
2024 | && eh->root.type == bfd_link_hash_undefweak) | |
2025 | hh->dyn_relocs = NULL; | |
446f2863 | 2026 | } |
98ceb8ce | 2027 | else |
30667bf3 | 2028 | { |
98ceb8ce AM |
2029 | /* For the non-shared case, discard space for relocs against |
2030 | symbols which turn out to need copy relocs or are not | |
2031 | dynamic. */ | |
875c0872 DA |
2032 | |
2033 | if (!eh->non_got_ref | |
4fc8051d | 2034 | && ((ELIMINATE_COPY_RELOCS |
875c0872 DA |
2035 | && eh->def_dynamic |
2036 | && !eh->def_regular) | |
a63e02c7 | 2037 | || (htab->etab.dynamic_sections_created |
875c0872 DA |
2038 | && (eh->root.type == bfd_link_hash_undefweak |
2039 | || eh->root.type == bfd_link_hash_undefined)))) | |
98ceb8ce AM |
2040 | { |
2041 | /* Make sure this symbol is output as a dynamic symbol. | |
2042 | Undefined weak syms won't yet be marked as dynamic. */ | |
875c0872 DA |
2043 | if (eh->dynindx == -1 |
2044 | && !eh->forced_local | |
2045 | && eh->type != STT_PARISC_MILLI) | |
98ceb8ce | 2046 | { |
875c0872 | 2047 | if (! bfd_elf_link_record_dynamic_symbol (info, eh)) |
b34976b6 | 2048 | return FALSE; |
98ceb8ce AM |
2049 | } |
2050 | ||
2051 | /* If that succeeded, we know we'll be keeping all the | |
2052 | relocs. */ | |
875c0872 | 2053 | if (eh->dynindx != -1) |
98ceb8ce AM |
2054 | goto keep; |
2055 | } | |
446f2863 | 2056 | |
875c0872 | 2057 | hh->dyn_relocs = NULL; |
b34976b6 | 2058 | return TRUE; |
98ceb8ce | 2059 | |
ec338859 | 2060 | keep: ; |
30667bf3 | 2061 | } |
30667bf3 | 2062 | |
98ceb8ce | 2063 | /* Finally, allocate space. */ |
a63e02c7 | 2064 | for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next) |
30667bf3 | 2065 | { |
875c0872 DA |
2066 | asection *sreloc = elf_section_data (hdh_p->sec)->sreloc; |
2067 | sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2068 | } |
30667bf3 | 2069 | |
b34976b6 | 2070 | return TRUE; |
30667bf3 | 2071 | } |
30667bf3 | 2072 | |
d5c73c2f AM |
2073 | /* This function is called via elf_link_hash_traverse to force |
2074 | millicode symbols local so they do not end up as globals in the | |
2075 | dynamic symbol table. We ought to be able to do this in | |
2076 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2077 | for all dynamic symbols. Arguably, this is a bug in | |
2078 | elf_adjust_dynamic_symbol. */ | |
2079 | ||
b34976b6 | 2080 | static bfd_boolean |
875c0872 | 2081 | clobber_millicode_symbols (struct elf_link_hash_entry *eh, |
c39a58e6 | 2082 | struct bfd_link_info *info) |
d5c73c2f | 2083 | { |
875c0872 DA |
2084 | if (eh->root.type == bfd_link_hash_warning) |
2085 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
e92d460e | 2086 | |
875c0872 DA |
2087 | if (eh->type == STT_PARISC_MILLI |
2088 | && !eh->forced_local) | |
e0522e89 | 2089 | { |
875c0872 | 2090 | elf32_hppa_hide_symbol (info, eh, TRUE); |
e0522e89 | 2091 | } |
b34976b6 | 2092 | return TRUE; |
d5c73c2f AM |
2093 | } |
2094 | ||
98ceb8ce AM |
2095 | /* Find any dynamic relocs that apply to read-only sections. */ |
2096 | ||
b34976b6 | 2097 | static bfd_boolean |
875c0872 | 2098 | readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf) |
98ceb8ce | 2099 | { |
875c0872 DA |
2100 | struct elf32_hppa_link_hash_entry *hh; |
2101 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
98ceb8ce | 2102 | |
875c0872 DA |
2103 | if (eh->root.type == bfd_link_hash_warning) |
2104 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
e92d460e | 2105 | |
875c0872 | 2106 | hh = hppa_elf_hash_entry (eh); |
a63e02c7 | 2107 | for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next) |
98ceb8ce | 2108 | { |
875c0872 | 2109 | asection *sec = hdh_p->sec->output_section; |
98ceb8ce | 2110 | |
875c0872 | 2111 | if (sec != NULL && (sec->flags & SEC_READONLY) != 0) |
98ceb8ce | 2112 | { |
c39a58e6 | 2113 | struct bfd_link_info *info = inf; |
98ceb8ce AM |
2114 | |
2115 | info->flags |= DF_TEXTREL; | |
2116 | ||
2117 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 2118 | return FALSE; |
98ceb8ce AM |
2119 | } |
2120 | } | |
b34976b6 | 2121 | return TRUE; |
98ceb8ce AM |
2122 | } |
2123 | ||
30667bf3 AM |
2124 | /* Set the sizes of the dynamic sections. */ |
2125 | ||
b34976b6 | 2126 | static bfd_boolean |
c39a58e6 AM |
2127 | elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
2128 | struct bfd_link_info *info) | |
30667bf3 | 2129 | { |
83c81bfe | 2130 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2131 | bfd *dynobj; |
98ceb8ce | 2132 | bfd *ibfd; |
875c0872 | 2133 | asection *sec; |
b34976b6 | 2134 | bfd_boolean relocs; |
30667bf3 | 2135 | |
83c81bfe | 2136 | htab = hppa_link_hash_table (info); |
a63e02c7 | 2137 | dynobj = htab->etab.dynobj; |
49e9d0d3 AM |
2138 | if (dynobj == NULL) |
2139 | abort (); | |
30667bf3 | 2140 | |
a63e02c7 | 2141 | if (htab->etab.dynamic_sections_created) |
30667bf3 AM |
2142 | { |
2143 | /* Set the contents of the .interp section to the interpreter. */ | |
893c4fe2 | 2144 | if (info->executable) |
30667bf3 | 2145 | { |
875c0872 DA |
2146 | sec = bfd_get_section_by_name (dynobj, ".interp"); |
2147 | if (sec == NULL) | |
49e9d0d3 | 2148 | abort (); |
875c0872 DA |
2149 | sec->size = sizeof ELF_DYNAMIC_INTERPRETER; |
2150 | sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
30667bf3 | 2151 | } |
74d1c347 | 2152 | |
d5c73c2f | 2153 | /* Force millicode symbols local. */ |
a63e02c7 | 2154 | elf_link_hash_traverse (&htab->etab, |
d5c73c2f AM |
2155 | clobber_millicode_symbols, |
2156 | info); | |
68fb2e56 | 2157 | } |
d5c73c2f | 2158 | |
98ceb8ce AM |
2159 | /* Set up .got and .plt offsets for local syms, and space for local |
2160 | dynamic relocs. */ | |
2161 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
68fb2e56 AM |
2162 | { |
2163 | bfd_signed_vma *local_got; | |
2164 | bfd_signed_vma *end_local_got; | |
2165 | bfd_signed_vma *local_plt; | |
2166 | bfd_signed_vma *end_local_plt; | |
2167 | bfd_size_type locsymcount; | |
2168 | Elf_Internal_Shdr *symtab_hdr; | |
2169 | asection *srel; | |
74d1c347 | 2170 | |
98ceb8ce | 2171 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2172 | continue; |
4dc86686 | 2173 | |
875c0872 | 2174 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
98ceb8ce | 2175 | { |
875c0872 | 2176 | struct elf32_hppa_dyn_reloc_entry *hdh_p; |
98ceb8ce | 2177 | |
875c0872 DA |
2178 | for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *) |
2179 | elf_section_data (sec)->local_dynrel); | |
2180 | hdh_p != NULL; | |
a63e02c7 | 2181 | hdh_p = hdh_p->hdh_next) |
98ceb8ce | 2182 | { |
875c0872 DA |
2183 | if (!bfd_is_abs_section (hdh_p->sec) |
2184 | && bfd_is_abs_section (hdh_p->sec->output_section)) | |
ec338859 AM |
2185 | { |
2186 | /* Input section has been discarded, either because | |
2187 | it is a copy of a linkonce section or due to | |
2188 | linker script /DISCARD/, so we'll be discarding | |
2189 | the relocs too. */ | |
2190 | } | |
875c0872 | 2191 | else if (hdh_p->count != 0) |
ec338859 | 2192 | { |
875c0872 DA |
2193 | srel = elf_section_data (hdh_p->sec)->sreloc; |
2194 | srel->size += hdh_p->count * sizeof (Elf32_External_Rela); | |
2195 | if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0) | |
248866a8 | 2196 | info->flags |= DF_TEXTREL; |
ec338859 | 2197 | } |
98ceb8ce AM |
2198 | } |
2199 | } | |
2200 | ||
2201 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2202 | if (!local_got) |
2203 | continue; | |
74d1c347 | 2204 | |
98ceb8ce | 2205 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2206 | locsymcount = symtab_hdr->sh_info; |
2207 | end_local_got = local_got + locsymcount; | |
875c0872 | 2208 | sec = htab->sgot; |
83c81bfe | 2209 | srel = htab->srelgot; |
68fb2e56 AM |
2210 | for (; local_got < end_local_got; ++local_got) |
2211 | { | |
2212 | if (*local_got > 0) | |
4dc86686 | 2213 | { |
875c0872 DA |
2214 | *local_got = sec->size; |
2215 | sec->size += GOT_ENTRY_SIZE; | |
2216 | if (info->shared) | |
eea6121a | 2217 | srel->size += sizeof (Elf32_External_Rela); |
4dc86686 | 2218 | } |
68fb2e56 AM |
2219 | else |
2220 | *local_got = (bfd_vma) -1; | |
2221 | } | |
74d1c347 | 2222 | |
68fb2e56 AM |
2223 | local_plt = end_local_got; |
2224 | end_local_plt = local_plt + locsymcount; | |
a63e02c7 | 2225 | if (! htab->etab.dynamic_sections_created) |
68fb2e56 AM |
2226 | { |
2227 | /* Won't be used, but be safe. */ | |
2228 | for (; local_plt < end_local_plt; ++local_plt) | |
2229 | *local_plt = (bfd_vma) -1; | |
2230 | } | |
2231 | else | |
2232 | { | |
875c0872 | 2233 | sec = htab->splt; |
83c81bfe | 2234 | srel = htab->srelplt; |
74d1c347 AM |
2235 | for (; local_plt < end_local_plt; ++local_plt) |
2236 | { | |
2237 | if (*local_plt > 0) | |
2238 | { | |
875c0872 DA |
2239 | *local_plt = sec->size; |
2240 | sec->size += PLT_ENTRY_SIZE; | |
74d1c347 | 2241 | if (info->shared) |
eea6121a | 2242 | srel->size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2243 | } |
2244 | else | |
2245 | *local_plt = (bfd_vma) -1; | |
2246 | } | |
2247 | } | |
30667bf3 | 2248 | } |
30667bf3 | 2249 | |
e5ee5df1 AM |
2250 | /* Do all the .plt entries without relocs first. The dynamic linker |
2251 | uses the last .plt reloc to find the end of the .plt (and hence | |
2252 | the start of the .got) for lazy linking. */ | |
a63e02c7 | 2253 | elf_link_hash_traverse (&htab->etab, allocate_plt_static, info); |
a8d02d66 | 2254 | |
98ceb8ce AM |
2255 | /* Allocate global sym .plt and .got entries, and space for global |
2256 | sym dynamic relocs. */ | |
a63e02c7 | 2257 | elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info); |
30667bf3 AM |
2258 | |
2259 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2260 | determined the sizes of the various dynamic sections. Allocate | |
2261 | memory for them. */ | |
b34976b6 | 2262 | relocs = FALSE; |
875c0872 | 2263 | for (sec = dynobj->sections; sec != NULL; sec = sec->next) |
30667bf3 | 2264 | { |
875c0872 | 2265 | if ((sec->flags & SEC_LINKER_CREATED) == 0) |
30667bf3 AM |
2266 | continue; |
2267 | ||
875c0872 | 2268 | if (sec == htab->splt) |
68fb2e56 | 2269 | { |
83c81bfe | 2270 | if (htab->need_plt_stub) |
68fb2e56 AM |
2271 | { |
2272 | /* Make space for the plt stub at the end of the .plt | |
2273 | section. We want this stub right at the end, up | |
2274 | against the .got section. */ | |
83c81bfe | 2275 | int gotalign = bfd_section_alignment (dynobj, htab->sgot); |
875c0872 | 2276 | int pltalign = bfd_section_alignment (dynobj, sec); |
68fb2e56 | 2277 | bfd_size_type mask; |
30667bf3 | 2278 | |
68fb2e56 | 2279 | if (gotalign > pltalign) |
875c0872 | 2280 | bfd_set_section_alignment (dynobj, sec, gotalign); |
68fb2e56 | 2281 | mask = ((bfd_size_type) 1 << gotalign) - 1; |
875c0872 | 2282 | sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask; |
68fb2e56 AM |
2283 | } |
2284 | } | |
c456f082 AM |
2285 | else if (sec == htab->sgot |
2286 | || sec == htab->sdynbss) | |
68fb2e56 | 2287 | ; |
875c0872 | 2288 | else if (strncmp (bfd_get_section_name (dynobj, sec), ".rela", 5) == 0) |
30667bf3 | 2289 | { |
875c0872 | 2290 | if (sec->size != 0) |
30667bf3 | 2291 | { |
4e12ff7f AM |
2292 | /* Remember whether there are any reloc sections other |
2293 | than .rela.plt. */ | |
875c0872 | 2294 | if (sec != htab->srelplt) |
b34976b6 | 2295 | relocs = TRUE; |
47d89dba | 2296 | |
30667bf3 AM |
2297 | /* We use the reloc_count field as a counter if we need |
2298 | to copy relocs into the output file. */ | |
875c0872 | 2299 | sec->reloc_count = 0; |
30667bf3 AM |
2300 | } |
2301 | } | |
30667bf3 AM |
2302 | else |
2303 | { | |
2304 | /* It's not one of our sections, so don't allocate space. */ | |
2305 | continue; | |
2306 | } | |
2307 | ||
875c0872 | 2308 | if (sec->size == 0) |
30667bf3 AM |
2309 | { |
2310 | /* If we don't need this section, strip it from the | |
2311 | output file. This is mostly to handle .rela.bss and | |
2312 | .rela.plt. We must create both sections in | |
2313 | create_dynamic_sections, because they must be created | |
2314 | before the linker maps input sections to output | |
2315 | sections. The linker does that before | |
2316 | adjust_dynamic_symbol is called, and it is that | |
2317 | function which decides whether anything needs to go | |
2318 | into these sections. */ | |
875c0872 | 2319 | sec->flags |= SEC_EXCLUDE; |
30667bf3 AM |
2320 | continue; |
2321 | } | |
2322 | ||
c456f082 AM |
2323 | if ((sec->flags & SEC_HAS_CONTENTS) == 0) |
2324 | continue; | |
2325 | ||
30667bf3 AM |
2326 | /* Allocate memory for the section contents. Zero it, because |
2327 | we may not fill in all the reloc sections. */ | |
875c0872 | 2328 | sec->contents = bfd_zalloc (dynobj, sec->size); |
c456f082 | 2329 | if (sec->contents == NULL) |
b34976b6 | 2330 | return FALSE; |
30667bf3 AM |
2331 | } |
2332 | ||
a63e02c7 | 2333 | if (htab->etab.dynamic_sections_created) |
30667bf3 AM |
2334 | { |
2335 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2336 | actually has nothing to do with the PLT, it is how we | |
2337 | communicate the LTP value of a load module to the dynamic | |
2338 | linker. */ | |
dc810e39 | 2339 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 2340 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 AM |
2341 | |
2342 | if (!add_dynamic_entry (DT_PLTGOT, 0)) | |
b34976b6 | 2343 | return FALSE; |
30667bf3 AM |
2344 | |
2345 | /* Add some entries to the .dynamic section. We fill in the | |
2346 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2347 | must add the entries now so that we get the correct size for | |
2348 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2349 | dynamic linker and used by the debugger. */ | |
3c27d551 | 2350 | if (info->executable) |
30667bf3 | 2351 | { |
dc810e39 | 2352 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 2353 | return FALSE; |
30667bf3 AM |
2354 | } |
2355 | ||
eea6121a | 2356 | if (htab->srelplt->size != 0) |
30667bf3 | 2357 | { |
dc810e39 AM |
2358 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
2359 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2360 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 2361 | return FALSE; |
30667bf3 AM |
2362 | } |
2363 | ||
2364 | if (relocs) | |
2365 | { | |
dc810e39 AM |
2366 | if (!add_dynamic_entry (DT_RELA, 0) |
2367 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2368 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 2369 | return FALSE; |
30667bf3 | 2370 | |
98ceb8ce AM |
2371 | /* If any dynamic relocs apply to a read-only section, |
2372 | then we need a DT_TEXTREL entry. */ | |
248866a8 | 2373 | if ((info->flags & DF_TEXTREL) == 0) |
a63e02c7 | 2374 | elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info); |
98ceb8ce AM |
2375 | |
2376 | if ((info->flags & DF_TEXTREL) != 0) | |
2377 | { | |
2378 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 2379 | return FALSE; |
98ceb8ce | 2380 | } |
30667bf3 AM |
2381 | } |
2382 | } | |
dc810e39 | 2383 | #undef add_dynamic_entry |
30667bf3 | 2384 | |
b34976b6 | 2385 | return TRUE; |
30667bf3 AM |
2386 | } |
2387 | ||
30667bf3 AM |
2388 | /* External entry points for sizing and building linker stubs. */ |
2389 | ||
b4655ea9 AM |
2390 | /* Set up various things so that we can make a list of input sections |
2391 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 2392 | 0 when no stubs will be needed, and 1 on success. */ |
30667bf3 | 2393 | |
b4655ea9 | 2394 | int |
c39a58e6 | 2395 | elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info) |
30667bf3 AM |
2396 | { |
2397 | bfd *input_bfd; | |
b4655ea9 AM |
2398 | unsigned int bfd_count; |
2399 | int top_id, top_index; | |
30667bf3 | 2400 | asection *section; |
25f72752 | 2401 | asection **input_list, **list; |
dc810e39 | 2402 | bfd_size_type amt; |
b4655ea9 | 2403 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
30667bf3 | 2404 | |
1badb539 AM |
2405 | /* Count the number of input BFDs and find the top input section id. */ |
2406 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2407 | input_bfd != NULL; |
2408 | input_bfd = input_bfd->link_next) | |
2409 | { | |
2410 | bfd_count += 1; | |
25f72752 AM |
2411 | for (section = input_bfd->sections; |
2412 | section != NULL; | |
2413 | section = section->next) | |
2414 | { | |
2415 | if (top_id < section->id) | |
2416 | top_id = section->id; | |
2417 | } | |
30667bf3 | 2418 | } |
b4655ea9 | 2419 | htab->bfd_count = bfd_count; |
30667bf3 | 2420 | |
dc810e39 | 2421 | amt = sizeof (struct map_stub) * (top_id + 1); |
c39a58e6 | 2422 | htab->stub_group = bfd_zmalloc (amt); |
83c81bfe | 2423 | if (htab->stub_group == NULL) |
b4655ea9 | 2424 | return -1; |
1badb539 | 2425 | |
b4655ea9 | 2426 | /* We can't use output_bfd->section_count here to find the top output |
1badb539 | 2427 | section index as some sections may have been removed, and |
8423293d | 2428 | strip_excluded_output_sections doesn't renumber the indices. */ |
1badb539 AM |
2429 | for (section = output_bfd->sections, top_index = 0; |
2430 | section != NULL; | |
2431 | section = section->next) | |
2432 | { | |
2433 | if (top_index < section->index) | |
2434 | top_index = section->index; | |
2435 | } | |
2436 | ||
b4655ea9 | 2437 | htab->top_index = top_index; |
dc810e39 | 2438 | amt = sizeof (asection *) * (top_index + 1); |
c39a58e6 | 2439 | input_list = bfd_malloc (amt); |
b4655ea9 | 2440 | htab->input_list = input_list; |
25f72752 | 2441 | if (input_list == NULL) |
b4655ea9 | 2442 | return -1; |
25f72752 | 2443 | |
1badb539 AM |
2444 | /* For sections we aren't interested in, mark their entries with a |
2445 | value we can check later. */ | |
2446 | list = input_list + top_index; | |
2447 | do | |
2448 | *list = bfd_abs_section_ptr; | |
2449 | while (list-- != input_list); | |
2450 | ||
2451 | for (section = output_bfd->sections; | |
2452 | section != NULL; | |
2453 | section = section->next) | |
2454 | { | |
47d89dba | 2455 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2456 | input_list[section->index] = NULL; |
2457 | } | |
2458 | ||
b4655ea9 AM |
2459 | return 1; |
2460 | } | |
2461 | ||
2462 | /* The linker repeatedly calls this function for each input section, | |
2463 | in the order that input sections are linked into output sections. | |
2464 | Build lists of input sections to determine groupings between which | |
2465 | we may insert linker stubs. */ | |
2466 | ||
2467 | void | |
c39a58e6 | 2468 | elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec) |
b4655ea9 AM |
2469 | { |
2470 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
2471 | ||
2472 | if (isec->output_section->index <= htab->top_index) | |
25f72752 | 2473 | { |
b4655ea9 AM |
2474 | asection **list = htab->input_list + isec->output_section->index; |
2475 | if (*list != bfd_abs_section_ptr) | |
25f72752 | 2476 | { |
b4655ea9 | 2477 | /* Steal the link_sec pointer for our list. */ |
83c81bfe | 2478 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
b4655ea9 AM |
2479 | /* This happens to make the list in reverse order, |
2480 | which is what we want. */ | |
2481 | PREV_SEC (isec) = *list; | |
2482 | *list = isec; | |
25f72752 AM |
2483 | } |
2484 | } | |
b4655ea9 | 2485 | } |
25f72752 | 2486 | |
b4655ea9 AM |
2487 | /* See whether we can group stub sections together. Grouping stub |
2488 | sections may result in fewer stubs. More importantly, we need to | |
2489 | put all .init* and .fini* stubs at the beginning of the .init or | |
2490 | .fini output sections respectively, because glibc splits the | |
2491 | _init and _fini functions into multiple parts. Putting a stub in | |
2492 | the middle of a function is not a good idea. */ | |
2493 | ||
2494 | static void | |
c39a58e6 AM |
2495 | group_sections (struct elf32_hppa_link_hash_table *htab, |
2496 | bfd_size_type stub_group_size, | |
2497 | bfd_boolean stubs_always_before_branch) | |
b4655ea9 AM |
2498 | { |
2499 | asection **list = htab->input_list + htab->top_index; | |
1badb539 | 2500 | do |
25f72752 AM |
2501 | { |
2502 | asection *tail = *list; | |
1badb539 AM |
2503 | if (tail == bfd_abs_section_ptr) |
2504 | continue; | |
25f72752 AM |
2505 | while (tail != NULL) |
2506 | { | |
2507 | asection *curr; | |
2508 | asection *prev; | |
2509 | bfd_size_type total; | |
00b28bb0 | 2510 | bfd_boolean big_sec; |
25f72752 AM |
2511 | |
2512 | curr = tail; | |
eea6121a | 2513 | total = tail->size; |
00b28bb0 AM |
2514 | big_sec = total >= stub_group_size; |
2515 | ||
25f72752 AM |
2516 | while ((prev = PREV_SEC (curr)) != NULL |
2517 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2518 | < stub_group_size)) |
25f72752 AM |
2519 | curr = prev; |
2520 | ||
2521 | /* OK, the size from the start of CURR to the end is less | |
a248e267 | 2522 | than 240000 bytes and thus can be handled by one stub |
25f72752 | 2523 | section. (or the tail section is itself larger than |
a248e267 | 2524 | 240000 bytes, in which case we may be toast.) |
25f72752 AM |
2525 | We should really be keeping track of the total size of |
2526 | stubs added here, as stubs contribute to the final output | |
2527 | section size. That's a little tricky, and this way will | |
a248e267 AM |
2528 | only break if stubs added total more than 22144 bytes, or |
2529 | 2768 long branch stubs. It seems unlikely for more than | |
2530 | 2768 different functions to be called, especially from | |
2531 | code only 240000 bytes long. This limit used to be | |
2532 | 250000, but c++ code tends to generate lots of little | |
2533 | functions, and sometimes violated the assumption. */ | |
25f72752 AM |
2534 | do |
2535 | { | |
2536 | prev = PREV_SEC (tail); | |
2537 | /* Set up this stub group. */ | |
83c81bfe | 2538 | htab->stub_group[tail->id].link_sec = curr; |
25f72752 AM |
2539 | } |
2540 | while (tail != curr && (tail = prev) != NULL); | |
2541 | ||
a248e267 | 2542 | /* But wait, there's more! Input sections up to 240000 |
00b28bb0 AM |
2543 | bytes before the stub section can be handled by it too. |
2544 | Don't do this if we have a really large section after the | |
2545 | stubs, as adding more stubs increases the chance that | |
2546 | branches may not reach into the stub section. */ | |
2547 | if (!stubs_always_before_branch && !big_sec) | |
25f72752 | 2548 | { |
47d89dba AM |
2549 | total = 0; |
2550 | while (prev != NULL | |
2551 | && ((total += tail->output_offset - prev->output_offset) | |
2552 | < stub_group_size)) | |
2553 | { | |
2554 | tail = prev; | |
2555 | prev = PREV_SEC (tail); | |
83c81bfe | 2556 | htab->stub_group[tail->id].link_sec = curr; |
47d89dba | 2557 | } |
25f72752 AM |
2558 | } |
2559 | tail = prev; | |
2560 | } | |
2561 | } | |
b4655ea9 AM |
2562 | while (list-- != htab->input_list); |
2563 | free (htab->input_list); | |
1badb539 | 2564 | #undef PREV_SEC |
b4655ea9 AM |
2565 | } |
2566 | ||
2567 | /* Read in all local syms for all input bfds, and create hash entries | |
2568 | for export stubs if we are building a multi-subspace shared lib. | |
2569 | Returns -1 on error, 1 if export stubs created, 0 otherwise. */ | |
2570 | ||
2571 | static int | |
c39a58e6 | 2572 | get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info) |
b4655ea9 AM |
2573 | { |
2574 | unsigned int bfd_indx; | |
2575 | Elf_Internal_Sym *local_syms, **all_local_syms; | |
2576 | int stub_changed = 0; | |
2577 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
30667bf3 AM |
2578 | |
2579 | /* We want to read in symbol extension records only once. To do this | |
2580 | we need to read in the local symbols in parallel and save them for | |
2581 | later use; so hold pointers to the local symbols in an array. */ | |
b4655ea9 | 2582 | bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count; |
c39a58e6 | 2583 | all_local_syms = bfd_zmalloc (amt); |
b4655ea9 | 2584 | htab->all_local_syms = all_local_syms; |
30667bf3 | 2585 | if (all_local_syms == NULL) |
b4655ea9 | 2586 | return -1; |
30667bf3 AM |
2587 | |
2588 | /* Walk over all the input BFDs, swapping in local symbols. | |
2589 | If we are creating a shared library, create hash entries for the | |
2590 | export stubs. */ | |
b4655ea9 | 2591 | for (bfd_indx = 0; |
30667bf3 | 2592 | input_bfd != NULL; |
25f72752 | 2593 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2594 | { |
2595 | Elf_Internal_Shdr *symtab_hdr; | |
edd21aca | 2596 | |
252b5132 RH |
2597 | /* We'll need the symbol table in a second. */ |
2598 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2599 | if (symtab_hdr->sh_info == 0) | |
2600 | continue; | |
2601 | ||
6cdc0ccc AM |
2602 | /* We need an array of the local symbols attached to the input bfd. */ |
2603 | local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
edd21aca | 2604 | if (local_syms == NULL) |
edd21aca | 2605 | { |
6cdc0ccc AM |
2606 | local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, |
2607 | symtab_hdr->sh_info, 0, | |
2608 | NULL, NULL, NULL); | |
2609 | /* Cache them for elf_link_input_bfd. */ | |
2610 | symtab_hdr->contents = (unsigned char *) local_syms; | |
edd21aca | 2611 | } |
6cdc0ccc AM |
2612 | if (local_syms == NULL) |
2613 | return -1; | |
edd21aca | 2614 | |
6cdc0ccc | 2615 | all_local_syms[bfd_indx] = local_syms; |
edd21aca | 2616 | |
83c81bfe | 2617 | if (info->shared && htab->multi_subspace) |
30667bf3 | 2618 | { |
875c0872 DA |
2619 | struct elf_link_hash_entry **eh_syms; |
2620 | struct elf_link_hash_entry **eh_symend; | |
30667bf3 AM |
2621 | unsigned int symcount; |
2622 | ||
2623 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2624 | - symtab_hdr->sh_info); | |
875c0872 DA |
2625 | eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd); |
2626 | eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount); | |
30667bf3 AM |
2627 | |
2628 | /* Look through the global syms for functions; We need to | |
2629 | build export stubs for all globally visible functions. */ | |
875c0872 | 2630 | for (; eh_syms < eh_symend; eh_syms++) |
30667bf3 | 2631 | { |
875c0872 | 2632 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 | 2633 | |
875c0872 | 2634 | hh = hppa_elf_hash_entry (*eh_syms); |
30667bf3 | 2635 | |
a63e02c7 DA |
2636 | while (hh->eh.root.type == bfd_link_hash_indirect |
2637 | || hh->eh.root.type == bfd_link_hash_warning) | |
2638 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
30667bf3 AM |
2639 | |
2640 | /* At this point in the link, undefined syms have been | |
2641 | resolved, so we need to check that the symbol was | |
2642 | defined in this BFD. */ | |
a63e02c7 DA |
2643 | if ((hh->eh.root.type == bfd_link_hash_defined |
2644 | || hh->eh.root.type == bfd_link_hash_defweak) | |
2645 | && hh->eh.type == STT_FUNC | |
2646 | && hh->eh.root.u.def.section->output_section != NULL | |
2647 | && (hh->eh.root.u.def.section->output_section->owner | |
25f72752 | 2648 | == output_bfd) |
a63e02c7 DA |
2649 | && hh->eh.root.u.def.section->owner == input_bfd |
2650 | && hh->eh.def_regular | |
2651 | && !hh->eh.forced_local | |
2652 | && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT) | |
30667bf3 AM |
2653 | { |
2654 | asection *sec; | |
2655 | const char *stub_name; | |
875c0872 | 2656 | struct elf32_hppa_stub_hash_entry *hsh; |
30667bf3 | 2657 | |
a63e02c7 DA |
2658 | sec = hh->eh.root.u.def.section; |
2659 | stub_name = hh->eh.root.root.string; | |
2660 | hsh = hppa_stub_hash_lookup (&htab->bstab, | |
30667bf3 | 2661 | stub_name, |
b34976b6 | 2662 | FALSE, FALSE); |
875c0872 | 2663 | if (hsh == NULL) |
30667bf3 | 2664 | { |
875c0872 DA |
2665 | hsh = hppa_add_stub (stub_name, sec, htab); |
2666 | if (!hsh) | |
b4655ea9 | 2667 | return -1; |
30667bf3 | 2668 | |
a63e02c7 DA |
2669 | hsh->target_value = hh->eh.root.u.def.value; |
2670 | hsh->target_section = hh->eh.root.u.def.section; | |
875c0872 | 2671 | hsh->stub_type = hppa_stub_export; |
a63e02c7 | 2672 | hsh->hh = hh; |
30667bf3 AM |
2673 | stub_changed = 1; |
2674 | } | |
2675 | else | |
2676 | { | |
d003868e AM |
2677 | (*_bfd_error_handler) (_("%B: duplicate export stub %s"), |
2678 | input_bfd, | |
8f615d07 | 2679 | stub_name); |
30667bf3 AM |
2680 | } |
2681 | } | |
2682 | } | |
30667bf3 AM |
2683 | } |
2684 | } | |
edd21aca | 2685 | |
b4655ea9 AM |
2686 | return stub_changed; |
2687 | } | |
2688 | ||
2689 | /* Determine and set the size of the stub section for a final link. | |
2690 | ||
2691 | The basic idea here is to examine all the relocations looking for | |
2692 | PC-relative calls to a target that is unreachable with a "bl" | |
2693 | instruction. */ | |
2694 | ||
b34976b6 | 2695 | bfd_boolean |
c39a58e6 AM |
2696 | elf32_hppa_size_stubs |
2697 | (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info, | |
2698 | bfd_boolean multi_subspace, bfd_signed_vma group_size, | |
2699 | asection * (*add_stub_section) (const char *, asection *), | |
2700 | void (*layout_sections_again) (void)) | |
b4655ea9 AM |
2701 | { |
2702 | bfd_size_type stub_group_size; | |
b34976b6 AM |
2703 | bfd_boolean stubs_always_before_branch; |
2704 | bfd_boolean stub_changed; | |
b4655ea9 AM |
2705 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
2706 | ||
2707 | /* Stash our params away. */ | |
2708 | htab->stub_bfd = stub_bfd; | |
2709 | htab->multi_subspace = multi_subspace; | |
2710 | htab->add_stub_section = add_stub_section; | |
2711 | htab->layout_sections_again = layout_sections_again; | |
2712 | stubs_always_before_branch = group_size < 0; | |
2713 | if (group_size < 0) | |
2714 | stub_group_size = -group_size; | |
2715 | else | |
2716 | stub_group_size = group_size; | |
2717 | if (stub_group_size == 1) | |
2718 | { | |
2719 | /* Default values. */ | |
acc990f2 AM |
2720 | if (stubs_always_before_branch) |
2721 | { | |
2722 | stub_group_size = 7680000; | |
2723 | if (htab->has_17bit_branch || htab->multi_subspace) | |
2724 | stub_group_size = 240000; | |
2725 | if (htab->has_12bit_branch) | |
2726 | stub_group_size = 7500; | |
2727 | } | |
2728 | else | |
2729 | { | |
2730 | stub_group_size = 6971392; | |
2731 | if (htab->has_17bit_branch || htab->multi_subspace) | |
2732 | stub_group_size = 217856; | |
2733 | if (htab->has_12bit_branch) | |
2734 | stub_group_size = 6808; | |
2735 | } | |
b4655ea9 AM |
2736 | } |
2737 | ||
2738 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
2739 | ||
2740 | switch (get_local_syms (output_bfd, info->input_bfds, info)) | |
2741 | { | |
2742 | default: | |
2743 | if (htab->all_local_syms) | |
2744 | goto error_ret_free_local; | |
b34976b6 | 2745 | return FALSE; |
b4655ea9 AM |
2746 | |
2747 | case 0: | |
b34976b6 | 2748 | stub_changed = FALSE; |
b4655ea9 AM |
2749 | break; |
2750 | ||
2751 | case 1: | |
b34976b6 | 2752 | stub_changed = TRUE; |
b4655ea9 AM |
2753 | break; |
2754 | } | |
2755 | ||
edd21aca AM |
2756 | while (1) |
2757 | { | |
b4655ea9 AM |
2758 | bfd *input_bfd; |
2759 | unsigned int bfd_indx; | |
30667bf3 AM |
2760 | asection *stub_sec; |
2761 | ||
25f72752 | 2762 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2763 | input_bfd != NULL; |
25f72752 | 2764 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2765 | { |
2766 | Elf_Internal_Shdr *symtab_hdr; | |
b4655ea9 AM |
2767 | asection *section; |
2768 | Elf_Internal_Sym *local_syms; | |
30667bf3 AM |
2769 | |
2770 | /* We'll need the symbol table in a second. */ | |
2771 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2772 | if (symtab_hdr->sh_info == 0) | |
2773 | continue; | |
2774 | ||
b4655ea9 | 2775 | local_syms = htab->all_local_syms[bfd_indx]; |
30667bf3 AM |
2776 | |
2777 | /* Walk over each section attached to the input bfd. */ | |
2778 | for (section = input_bfd->sections; | |
2779 | section != NULL; | |
25f72752 | 2780 | section = section->next) |
30667bf3 | 2781 | { |
30667bf3 AM |
2782 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
2783 | ||
2784 | /* If there aren't any relocs, then there's nothing more | |
2785 | to do. */ | |
2786 | if ((section->flags & SEC_RELOC) == 0 | |
2787 | || section->reloc_count == 0) | |
2788 | continue; | |
2789 | ||
25f72752 AM |
2790 | /* If this section is a link-once section that will be |
2791 | discarded, then don't create any stubs. */ | |
2792 | if (section->output_section == NULL | |
2793 | || section->output_section->owner != output_bfd) | |
2794 | continue; | |
2795 | ||
1e2f5b6e AM |
2796 | /* Get the relocs. */ |
2797 | internal_relocs | |
c39a58e6 | 2798 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
45d6a902 | 2799 | info->keep_memory); |
30667bf3 | 2800 | if (internal_relocs == NULL) |
1e2f5b6e | 2801 | goto error_ret_free_local; |
30667bf3 AM |
2802 | |
2803 | /* Now examine each relocation. */ | |
2804 | irela = internal_relocs; | |
2805 | irelaend = irela + section->reloc_count; | |
2806 | for (; irela < irelaend; irela++) | |
2807 | { | |
2808 | unsigned int r_type, r_indx; | |
2809 | enum elf32_hppa_stub_type stub_type; | |
875c0872 | 2810 | struct elf32_hppa_stub_hash_entry *hsh; |
30667bf3 AM |
2811 | asection *sym_sec; |
2812 | bfd_vma sym_value; | |
2813 | bfd_vma destination; | |
875c0872 | 2814 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 | 2815 | char *stub_name; |
25f72752 | 2816 | const asection *id_sec; |
30667bf3 AM |
2817 | |
2818 | r_type = ELF32_R_TYPE (irela->r_info); | |
2819 | r_indx = ELF32_R_SYM (irela->r_info); | |
2820 | ||
2821 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2822 | { | |
2823 | bfd_set_error (bfd_error_bad_value); | |
1e2f5b6e AM |
2824 | error_ret_free_internal: |
2825 | if (elf_section_data (section)->relocs == NULL) | |
2826 | free (internal_relocs); | |
2827 | goto error_ret_free_local; | |
30667bf3 AM |
2828 | } |
2829 | ||
2830 | /* Only look for stubs on call instructions. */ | |
2831 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
2832 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
2833 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
2834 | continue; | |
2835 | ||
2836 | /* Now determine the call target, its name, value, | |
2837 | section. */ | |
2838 | sym_sec = NULL; | |
2839 | sym_value = 0; | |
2840 | destination = 0; | |
875c0872 | 2841 | hh = NULL; |
30667bf3 AM |
2842 | if (r_indx < symtab_hdr->sh_info) |
2843 | { | |
2844 | /* It's a local symbol. */ | |
2845 | Elf_Internal_Sym *sym; | |
2846 | Elf_Internal_Shdr *hdr; | |
2847 | ||
2848 | sym = local_syms + r_indx; | |
2849 | hdr = elf_elfsections (input_bfd)[sym->st_shndx]; | |
2850 | sym_sec = hdr->bfd_section; | |
2851 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) | |
2852 | sym_value = sym->st_value; | |
2853 | destination = (sym_value + irela->r_addend | |
2854 | + sym_sec->output_offset | |
2855 | + sym_sec->output_section->vma); | |
2856 | } | |
2857 | else | |
2858 | { | |
2859 | /* It's an external symbol. */ | |
2860 | int e_indx; | |
2861 | ||
2862 | e_indx = r_indx - symtab_hdr->sh_info; | |
875c0872 | 2863 | hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]); |
30667bf3 | 2864 | |
a63e02c7 DA |
2865 | while (hh->eh.root.type == bfd_link_hash_indirect |
2866 | || hh->eh.root.type == bfd_link_hash_warning) | |
2867 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
30667bf3 | 2868 | |
a63e02c7 DA |
2869 | if (hh->eh.root.type == bfd_link_hash_defined |
2870 | || hh->eh.root.type == bfd_link_hash_defweak) | |
30667bf3 | 2871 | { |
a63e02c7 DA |
2872 | sym_sec = hh->eh.root.u.def.section; |
2873 | sym_value = hh->eh.root.u.def.value; | |
30667bf3 AM |
2874 | if (sym_sec->output_section != NULL) |
2875 | destination = (sym_value + irela->r_addend | |
2876 | + sym_sec->output_offset | |
2877 | + sym_sec->output_section->vma); | |
2878 | } | |
a63e02c7 | 2879 | else if (hh->eh.root.type == bfd_link_hash_undefweak) |
c432ba1a AM |
2880 | { |
2881 | if (! info->shared) | |
2882 | continue; | |
2883 | } | |
a63e02c7 | 2884 | else if (hh->eh.root.type == bfd_link_hash_undefined) |
c432ba1a | 2885 | { |
59c2e50f | 2886 | if (! (info->unresolved_syms_in_objects == RM_IGNORE |
a63e02c7 | 2887 | && (ELF_ST_VISIBILITY (hh->eh.other) |
c432ba1a | 2888 | == STV_DEFAULT) |
a63e02c7 | 2889 | && hh->eh.type != STT_PARISC_MILLI)) |
c432ba1a AM |
2890 | continue; |
2891 | } | |
30667bf3 AM |
2892 | else |
2893 | { | |
2894 | bfd_set_error (bfd_error_bad_value); | |
2895 | goto error_ret_free_internal; | |
2896 | } | |
2897 | } | |
2898 | ||
2899 | /* Determine what (if any) linker stub is needed. */ | |
875c0872 | 2900 | stub_type = hppa_type_of_stub (section, irela, hh, |
a252afa4 | 2901 | destination, info); |
30667bf3 AM |
2902 | if (stub_type == hppa_stub_none) |
2903 | continue; | |
2904 | ||
25f72752 | 2905 | /* Support for grouping stub sections. */ |
83c81bfe | 2906 | id_sec = htab->stub_group[section->id].link_sec; |
25f72752 | 2907 | |
30667bf3 | 2908 | /* Get the name of this stub. */ |
875c0872 | 2909 | stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela); |
30667bf3 AM |
2910 | if (!stub_name) |
2911 | goto error_ret_free_internal; | |
2912 | ||
a63e02c7 | 2913 | hsh = hppa_stub_hash_lookup (&htab->bstab, |
30667bf3 | 2914 | stub_name, |
b34976b6 | 2915 | FALSE, FALSE); |
875c0872 | 2916 | if (hsh != NULL) |
30667bf3 AM |
2917 | { |
2918 | /* The proper stub has already been created. */ | |
2919 | free (stub_name); | |
2920 | continue; | |
2921 | } | |
2922 | ||
875c0872 DA |
2923 | hsh = hppa_add_stub (stub_name, section, htab); |
2924 | if (hsh == NULL) | |
30667bf3 AM |
2925 | { |
2926 | free (stub_name); | |
1e2f5b6e | 2927 | goto error_ret_free_internal; |
30667bf3 AM |
2928 | } |
2929 | ||
875c0872 DA |
2930 | hsh->target_value = sym_value; |
2931 | hsh->target_section = sym_sec; | |
2932 | hsh->stub_type = stub_type; | |
30667bf3 AM |
2933 | if (info->shared) |
2934 | { | |
2935 | if (stub_type == hppa_stub_import) | |
875c0872 | 2936 | hsh->stub_type = hppa_stub_import_shared; |
98ceb8ce | 2937 | else if (stub_type == hppa_stub_long_branch) |
875c0872 | 2938 | hsh->stub_type = hppa_stub_long_branch_shared; |
30667bf3 | 2939 | } |
a63e02c7 | 2940 | hsh->hh = hh; |
b34976b6 | 2941 | stub_changed = TRUE; |
30667bf3 AM |
2942 | } |
2943 | ||
2944 | /* We're done with the internal relocs, free them. */ | |
1e2f5b6e AM |
2945 | if (elf_section_data (section)->relocs == NULL) |
2946 | free (internal_relocs); | |
30667bf3 AM |
2947 | } |
2948 | } | |
2949 | ||
2950 | if (!stub_changed) | |
2951 | break; | |
2952 | ||
2953 | /* OK, we've added some stubs. Find out the new size of the | |
2954 | stub sections. */ | |
83c81bfe | 2955 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
2956 | stub_sec != NULL; |
2957 | stub_sec = stub_sec->next) | |
eea6121a | 2958 | stub_sec->size = 0; |
74d1c347 | 2959 | |
a63e02c7 | 2960 | bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab); |
74d1c347 | 2961 | |
30667bf3 | 2962 | /* Ask the linker to do its stuff. */ |
83c81bfe | 2963 | (*htab->layout_sections_again) (); |
b34976b6 | 2964 | stub_changed = FALSE; |
30667bf3 AM |
2965 | } |
2966 | ||
6cdc0ccc | 2967 | free (htab->all_local_syms); |
b34976b6 | 2968 | return TRUE; |
30667bf3 AM |
2969 | |
2970 | error_ret_free_local: | |
b4655ea9 | 2971 | free (htab->all_local_syms); |
b34976b6 | 2972 | return FALSE; |
30667bf3 AM |
2973 | } |
2974 | ||
30667bf3 AM |
2975 | /* For a final link, this function is called after we have sized the |
2976 | stubs to provide a value for __gp. */ | |
2977 | ||
b34976b6 | 2978 | bfd_boolean |
c39a58e6 | 2979 | elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info) |
30667bf3 | 2980 | { |
b4655ea9 AM |
2981 | struct bfd_link_hash_entry *h; |
2982 | asection *sec = NULL; | |
2983 | bfd_vma gp_val = 0; | |
83c81bfe | 2984 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2985 | |
83c81bfe | 2986 | htab = hppa_link_hash_table (info); |
a63e02c7 | 2987 | h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE); |
30667bf3 | 2988 | |
df8634e3 | 2989 | if (h != NULL |
b4655ea9 AM |
2990 | && (h->type == bfd_link_hash_defined |
2991 | || h->type == bfd_link_hash_defweak)) | |
30667bf3 | 2992 | { |
b4655ea9 AM |
2993 | gp_val = h->u.def.value; |
2994 | sec = h->u.def.section; | |
30667bf3 AM |
2995 | } |
2996 | else | |
2997 | { | |
0eddce27 AM |
2998 | asection *splt = bfd_get_section_by_name (abfd, ".plt"); |
2999 | asection *sgot = bfd_get_section_by_name (abfd, ".got"); | |
b4655ea9 | 3000 | |
74d1c347 AM |
3001 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
3002 | or .data, if these sections exist. In the case of choosing | |
3003 | .plt try to make the LTP ideal for addressing anywhere in the | |
3004 | .plt or .got with a 14 bit signed offset. Typically, the end | |
3005 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
3006 | if either the .plt or .got is larger than 0x2000. If both | |
3007 | the .plt and .got are smaller than 0x2000, choose the end of | |
3008 | the .plt section. */ | |
225247f0 JT |
3009 | sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0 |
3010 | ? NULL : splt; | |
74d1c347 | 3011 | if (sec != NULL) |
30667bf3 | 3012 | { |
eea6121a AM |
3013 | gp_val = sec->size; |
3014 | if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000)) | |
74d1c347 AM |
3015 | { |
3016 | gp_val = 0x2000; | |
3017 | } | |
3018 | } | |
3019 | else | |
3020 | { | |
b4655ea9 | 3021 | sec = sgot; |
74d1c347 AM |
3022 | if (sec != NULL) |
3023 | { | |
225247f0 JT |
3024 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0) |
3025 | { | |
3026 | /* We know we don't have a .plt. If .got is large, | |
3027 | offset our LTP. */ | |
3028 | if (sec->size > 0x2000) | |
3029 | gp_val = 0x2000; | |
3030 | } | |
74d1c347 AM |
3031 | } |
3032 | else | |
3033 | { | |
3034 | /* No .plt or .got. Who cares what the LTP is? */ | |
3035 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3036 | } | |
30667bf3 | 3037 | } |
df8634e3 AM |
3038 | |
3039 | if (h != NULL) | |
3040 | { | |
b4655ea9 AM |
3041 | h->type = bfd_link_hash_defined; |
3042 | h->u.def.value = gp_val; | |
df8634e3 | 3043 | if (sec != NULL) |
b4655ea9 | 3044 | h->u.def.section = sec; |
df8634e3 | 3045 | else |
b4655ea9 | 3046 | h->u.def.section = bfd_abs_section_ptr; |
df8634e3 | 3047 | } |
30667bf3 AM |
3048 | } |
3049 | ||
b32b5d6e | 3050 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
3051 | gp_val += sec->output_section->vma + sec->output_offset; |
3052 | ||
3053 | elf_gp (abfd) = gp_val; | |
b34976b6 | 3054 | return TRUE; |
30667bf3 AM |
3055 | } |
3056 | ||
30667bf3 AM |
3057 | /* Build all the stubs associated with the current output file. The |
3058 | stubs are kept in a hash table attached to the main linker hash | |
3059 | table. We also set up the .plt entries for statically linked PIC | |
3060 | functions here. This function is called via hppaelf_finish in the | |
3061 | linker. */ | |
3062 | ||
b34976b6 | 3063 | bfd_boolean |
c39a58e6 | 3064 | elf32_hppa_build_stubs (struct bfd_link_info *info) |
30667bf3 AM |
3065 | { |
3066 | asection *stub_sec; | |
3067 | struct bfd_hash_table *table; | |
83c81bfe | 3068 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3069 | |
83c81bfe | 3070 | htab = hppa_link_hash_table (info); |
30667bf3 | 3071 | |
83c81bfe | 3072 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3073 | stub_sec != NULL; |
3074 | stub_sec = stub_sec->next) | |
3075 | { | |
dc810e39 | 3076 | bfd_size_type size; |
30667bf3 AM |
3077 | |
3078 | /* Allocate memory to hold the linker stubs. */ | |
eea6121a | 3079 | size = stub_sec->size; |
c39a58e6 | 3080 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); |
30667bf3 | 3081 | if (stub_sec->contents == NULL && size != 0) |
b34976b6 | 3082 | return FALSE; |
eea6121a | 3083 | stub_sec->size = 0; |
30667bf3 AM |
3084 | } |
3085 | ||
3086 | /* Build the stubs as directed by the stub hash table. */ | |
a63e02c7 | 3087 | table = &htab->bstab; |
30667bf3 AM |
3088 | bfd_hash_traverse (table, hppa_build_one_stub, info); |
3089 | ||
b34976b6 | 3090 | return TRUE; |
30667bf3 AM |
3091 | } |
3092 | ||
c46b7515 AM |
3093 | /* Perform a final link. */ |
3094 | ||
b34976b6 | 3095 | static bfd_boolean |
c39a58e6 | 3096 | elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info) |
c46b7515 | 3097 | { |
4dc86686 | 3098 | /* Invoke the regular ELF linker to do all the work. */ |
c152c796 | 3099 | if (!bfd_elf_final_link (abfd, info)) |
b34976b6 | 3100 | return FALSE; |
c46b7515 AM |
3101 | |
3102 | /* If we're producing a final executable, sort the contents of the | |
985142a4 | 3103 | unwind section. */ |
46fe4e66 | 3104 | return elf_hppa_sort_unwind (abfd); |
c46b7515 AM |
3105 | } |
3106 | ||
3107 | /* Record the lowest address for the data and text segments. */ | |
3108 | ||
3109 | static void | |
c39a58e6 AM |
3110 | hppa_record_segment_addr (bfd *abfd ATTRIBUTE_UNUSED, |
3111 | asection *section, | |
3112 | void *data) | |
c46b7515 | 3113 | { |
83c81bfe | 3114 | struct elf32_hppa_link_hash_table *htab; |
c46b7515 | 3115 | |
875c0872 | 3116 | htab = (struct elf32_hppa_link_hash_table*) data; |
c46b7515 AM |
3117 | |
3118 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3119 | { | |
3120 | bfd_vma value = section->vma - section->filepos; | |
3121 | ||
3122 | if ((section->flags & SEC_READONLY) != 0) | |
3123 | { | |
83c81bfe AM |
3124 | if (value < htab->text_segment_base) |
3125 | htab->text_segment_base = value; | |
c46b7515 AM |
3126 | } |
3127 | else | |
3128 | { | |
83c81bfe AM |
3129 | if (value < htab->data_segment_base) |
3130 | htab->data_segment_base = value; | |
c46b7515 AM |
3131 | } |
3132 | } | |
3133 | } | |
3134 | ||
30667bf3 AM |
3135 | /* Perform a relocation as part of a final link. */ |
3136 | ||
3137 | static bfd_reloc_status_type | |
c39a58e6 AM |
3138 | final_link_relocate (asection *input_section, |
3139 | bfd_byte *contents, | |
875c0872 | 3140 | const Elf_Internal_Rela *rela, |
c39a58e6 AM |
3141 | bfd_vma value, |
3142 | struct elf32_hppa_link_hash_table *htab, | |
3143 | asection *sym_sec, | |
875c0872 | 3144 | struct elf32_hppa_link_hash_entry *hh, |
a252afa4 | 3145 | struct bfd_link_info *info) |
30667bf3 AM |
3146 | { |
3147 | int insn; | |
875c0872 | 3148 | unsigned int r_type = ELF32_R_TYPE (rela->r_info); |
a252afa4 | 3149 | unsigned int orig_r_type = r_type; |
30667bf3 AM |
3150 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; |
3151 | int r_format = howto->bitsize; | |
3152 | enum hppa_reloc_field_selector_type_alt r_field; | |
3153 | bfd *input_bfd = input_section->owner; | |
875c0872 | 3154 | bfd_vma offset = rela->r_offset; |
30667bf3 AM |
3155 | bfd_vma max_branch_offset = 0; |
3156 | bfd_byte *hit_data = contents + offset; | |
875c0872 | 3157 | bfd_signed_vma addend = rela->r_addend; |
30667bf3 | 3158 | bfd_vma location; |
875c0872 DA |
3159 | struct elf32_hppa_stub_hash_entry *hsh = NULL; |
3160 | int val; | |
30667bf3 AM |
3161 | |
3162 | if (r_type == R_PARISC_NONE) | |
3163 | return bfd_reloc_ok; | |
3164 | ||
3165 | insn = bfd_get_32 (input_bfd, hit_data); | |
3166 | ||
3167 | /* Find out where we are and where we're going. */ | |
3168 | location = (offset + | |
3169 | input_section->output_offset + | |
3170 | input_section->output_section->vma); | |
3171 | ||
a252afa4 DA |
3172 | /* If we are not building a shared library, convert DLTIND relocs to |
3173 | DPREL relocs. */ | |
3174 | if (!info->shared) | |
3175 | { | |
3176 | switch (r_type) | |
4fc8051d AM |
3177 | { |
3178 | case R_PARISC_DLTIND21L: | |
3179 | r_type = R_PARISC_DPREL21L; | |
a252afa4 DA |
3180 | break; |
3181 | ||
4fc8051d AM |
3182 | case R_PARISC_DLTIND14R: |
3183 | r_type = R_PARISC_DPREL14R; | |
a252afa4 DA |
3184 | break; |
3185 | ||
4fc8051d AM |
3186 | case R_PARISC_DLTIND14F: |
3187 | r_type = R_PARISC_DPREL14F; | |
a252afa4 DA |
3188 | break; |
3189 | } | |
3190 | } | |
3191 | ||
30667bf3 AM |
3192 | switch (r_type) |
3193 | { | |
3194 | case R_PARISC_PCREL12F: | |
3195 | case R_PARISC_PCREL17F: | |
3196 | case R_PARISC_PCREL22F: | |
067fa4a6 AM |
3197 | /* If this call should go via the plt, find the import stub in |
3198 | the stub hash. */ | |
30667bf3 AM |
3199 | if (sym_sec == NULL |
3200 | || sym_sec->output_section == NULL | |
875c0872 | 3201 | || (hh != NULL |
a63e02c7 DA |
3202 | && hh->eh.plt.offset != (bfd_vma) -1 |
3203 | && hh->eh.dynindx != -1 | |
875c0872 | 3204 | && !hh->plabel |
a252afa4 | 3205 | && (info->shared |
a63e02c7 DA |
3206 | || !hh->eh.def_regular |
3207 | || hh->eh.root.type == bfd_link_hash_defweak))) | |
30667bf3 | 3208 | { |
875c0872 DA |
3209 | hsh = hppa_get_stub_entry (input_section, sym_sec, |
3210 | hh, rela, htab); | |
3211 | if (hsh != NULL) | |
30667bf3 | 3212 | { |
875c0872 DA |
3213 | value = (hsh->stub_offset |
3214 | + hsh->stub_sec->output_offset | |
3215 | + hsh->stub_sec->output_section->vma); | |
30667bf3 AM |
3216 | addend = 0; |
3217 | } | |
875c0872 | 3218 | else if (sym_sec == NULL && hh != NULL |
a63e02c7 | 3219 | && hh->eh.root.type == bfd_link_hash_undefweak) |
30667bf3 | 3220 | { |
db20fd76 AM |
3221 | /* It's OK if undefined weak. Calls to undefined weak |
3222 | symbols behave as if the "called" function | |
3223 | immediately returns. We can thus call to a weak | |
3224 | function without first checking whether the function | |
3225 | is defined. */ | |
30667bf3 | 3226 | value = location; |
db20fd76 | 3227 | addend = 8; |
30667bf3 AM |
3228 | } |
3229 | else | |
f09ebc7d | 3230 | return bfd_reloc_undefined; |
30667bf3 AM |
3231 | } |
3232 | /* Fall thru. */ | |
3233 | ||
3234 | case R_PARISC_PCREL21L: | |
3235 | case R_PARISC_PCREL17C: | |
3236 | case R_PARISC_PCREL17R: | |
3237 | case R_PARISC_PCREL14R: | |
3238 | case R_PARISC_PCREL14F: | |
36751eee | 3239 | case R_PARISC_PCREL32: |
30667bf3 AM |
3240 | /* Make it a pc relative offset. */ |
3241 | value -= location; | |
3242 | addend -= 8; | |
3243 | break; | |
3244 | ||
3245 | case R_PARISC_DPREL21L: | |
3246 | case R_PARISC_DPREL14R: | |
3247 | case R_PARISC_DPREL14F: | |
a252afa4 DA |
3248 | /* Convert instructions that use the linkage table pointer (r19) to |
3249 | instructions that use the global data pointer (dp). This is the | |
3250 | most efficient way of using PIC code in an incomplete executable, | |
3251 | but the user must follow the standard runtime conventions for | |
3252 | accessing data for this to work. */ | |
3253 | if (orig_r_type == R_PARISC_DLTIND21L) | |
3254 | { | |
3255 | /* Convert addil instructions if the original reloc was a | |
3256 | DLTIND21L. GCC sometimes uses a register other than r19 for | |
3257 | the operation, so we must convert any addil instruction | |
3258 | that uses this relocation. */ | |
3259 | if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26)) | |
3260 | insn = ADDIL_DP; | |
3261 | else | |
3262 | /* We must have a ldil instruction. It's too hard to find | |
3263 | and convert the associated add instruction, so issue an | |
3264 | error. */ | |
3265 | (*_bfd_error_handler) | |
d003868e AM |
3266 | (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"), |
3267 | input_bfd, | |
3268 | input_section, | |
875c0872 | 3269 | offset, |
a252afa4 DA |
3270 | howto->name, |
3271 | insn); | |
3272 | } | |
3273 | else if (orig_r_type == R_PARISC_DLTIND14F) | |
3274 | { | |
3275 | /* This must be a format 1 load/store. Change the base | |
3276 | register to dp. */ | |
3277 | insn = (insn & 0xfc1ffff) | (27 << 21); | |
3278 | } | |
3279 | ||
30667bf3 | 3280 | /* For all the DP relative relocations, we need to examine the symbol's |
95d0f04a DA |
3281 | section. If it has no section or if it's a code section, then |
3282 | "data pointer relative" makes no sense. In that case we don't | |
3283 | adjust the "value", and for 21 bit addil instructions, we change the | |
3284 | source addend register from %dp to %r0. This situation commonly | |
3285 | arises for undefined weak symbols and when a variable's "constness" | |
30667bf3 AM |
3286 | is declared differently from the way the variable is defined. For |
3287 | instance: "extern int foo" with foo defined as "const int foo". */ | |
95d0f04a | 3288 | if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0) |
30667bf3 AM |
3289 | { |
3290 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3291 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3292 | { | |
3293 | insn &= ~ (0x1f << 21); | |
30667bf3 AM |
3294 | } |
3295 | /* Now try to make things easy for the dynamic linker. */ | |
3296 | ||
3297 | break; | |
3298 | } | |
74d1c347 | 3299 | /* Fall thru. */ |
30667bf3 AM |
3300 | |
3301 | case R_PARISC_DLTIND21L: | |
3302 | case R_PARISC_DLTIND14R: | |
3303 | case R_PARISC_DLTIND14F: | |
3304 | value -= elf_gp (input_section->output_section->owner); | |
3305 | break; | |
3306 | ||
c46b7515 AM |
3307 | case R_PARISC_SEGREL32: |
3308 | if ((sym_sec->flags & SEC_CODE) != 0) | |
83c81bfe | 3309 | value -= htab->text_segment_base; |
c46b7515 | 3310 | else |
83c81bfe | 3311 | value -= htab->data_segment_base; |
c46b7515 AM |
3312 | break; |
3313 | ||
30667bf3 AM |
3314 | default: |
3315 | break; | |
3316 | } | |
3317 | ||
3318 | switch (r_type) | |
3319 | { | |
3320 | case R_PARISC_DIR32: | |
47d89dba | 3321 | case R_PARISC_DIR14F: |
30667bf3 AM |
3322 | case R_PARISC_DIR17F: |
3323 | case R_PARISC_PCREL17C: | |
3324 | case R_PARISC_PCREL14F: | |
36751eee | 3325 | case R_PARISC_PCREL32: |
30667bf3 AM |
3326 | case R_PARISC_DPREL14F: |
3327 | case R_PARISC_PLABEL32: | |
3328 | case R_PARISC_DLTIND14F: | |
3329 | case R_PARISC_SEGBASE: | |
3330 | case R_PARISC_SEGREL32: | |
3331 | r_field = e_fsel; | |
3332 | break; | |
3333 | ||
1bf42538 | 3334 | case R_PARISC_DLTIND21L: |
30667bf3 | 3335 | case R_PARISC_PCREL21L: |
30667bf3 | 3336 | case R_PARISC_PLABEL21L: |
1bf42538 JL |
3337 | r_field = e_lsel; |
3338 | break; | |
3339 | ||
3340 | case R_PARISC_DIR21L: | |
3341 | case R_PARISC_DPREL21L: | |
30667bf3 AM |
3342 | r_field = e_lrsel; |
3343 | break; | |
3344 | ||
30667bf3 | 3345 | case R_PARISC_PCREL17R: |
30667bf3 | 3346 | case R_PARISC_PCREL14R: |
30667bf3 AM |
3347 | case R_PARISC_PLABEL14R: |
3348 | case R_PARISC_DLTIND14R: | |
1bf42538 JL |
3349 | r_field = e_rsel; |
3350 | break; | |
3351 | ||
3352 | case R_PARISC_DIR17R: | |
3353 | case R_PARISC_DIR14R: | |
3354 | case R_PARISC_DPREL14R: | |
30667bf3 AM |
3355 | r_field = e_rrsel; |
3356 | break; | |
3357 | ||
3358 | case R_PARISC_PCREL12F: | |
3359 | case R_PARISC_PCREL17F: | |
3360 | case R_PARISC_PCREL22F: | |
3361 | r_field = e_fsel; | |
3362 | ||
3363 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3364 | { | |
3365 | max_branch_offset = (1 << (17-1)) << 2; | |
3366 | } | |
3367 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3368 | { | |
3369 | max_branch_offset = (1 << (12-1)) << 2; | |
3370 | } | |
3371 | else | |
3372 | { | |
3373 | max_branch_offset = (1 << (22-1)) << 2; | |
3374 | } | |
3375 | ||
3376 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3377 | undefined syms. We've already checked for a stub for the | |
3378 | shared undefined case. */ | |
3379 | if (sym_sec == NULL) | |
3380 | break; | |
3381 | ||
3382 | /* If the branch is out of reach, then redirect the | |
3383 | call to the local stub for this function. */ | |
3384 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3385 | { | |
875c0872 DA |
3386 | hsh = hppa_get_stub_entry (input_section, sym_sec, |
3387 | hh, rela, htab); | |
3388 | if (hsh == NULL) | |
f09ebc7d | 3389 | return bfd_reloc_undefined; |
30667bf3 AM |
3390 | |
3391 | /* Munge up the value and addend so that we call the stub | |
3392 | rather than the procedure directly. */ | |
875c0872 DA |
3393 | value = (hsh->stub_offset |
3394 | + hsh->stub_sec->output_offset | |
3395 | + hsh->stub_sec->output_section->vma | |
30667bf3 AM |
3396 | - location); |
3397 | addend = -8; | |
3398 | } | |
3399 | break; | |
3400 | ||
3401 | /* Something we don't know how to handle. */ | |
3402 | default: | |
3403 | return bfd_reloc_notsupported; | |
3404 | } | |
3405 | ||
3406 | /* Make sure we can reach the stub. */ | |
3407 | if (max_branch_offset != 0 | |
3408 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3409 | { | |
3410 | (*_bfd_error_handler) | |
d003868e AM |
3411 | (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
3412 | input_bfd, | |
3413 | input_section, | |
875c0872 | 3414 | offset, |
a63e02c7 | 3415 | hsh->bh_root.string); |
ce757d15 | 3416 | bfd_set_error (bfd_error_bad_value); |
30667bf3 AM |
3417 | return bfd_reloc_notsupported; |
3418 | } | |
3419 | ||
3420 | val = hppa_field_adjust (value, addend, r_field); | |
3421 | ||
3422 | switch (r_type) | |
3423 | { | |
3424 | case R_PARISC_PCREL12F: | |
3425 | case R_PARISC_PCREL17C: | |
3426 | case R_PARISC_PCREL17F: | |
3427 | case R_PARISC_PCREL17R: | |
3428 | case R_PARISC_PCREL22F: | |
3429 | case R_PARISC_DIR17F: | |
3430 | case R_PARISC_DIR17R: | |
3431 | /* This is a branch. Divide the offset by four. | |
3432 | Note that we need to decide whether it's a branch or | |
3433 | otherwise by inspecting the reloc. Inspecting insn won't | |
3434 | work as insn might be from a .word directive. */ | |
3435 | val >>= 2; | |
3436 | break; | |
3437 | ||
3438 | default: | |
3439 | break; | |
3440 | } | |
3441 | ||
3442 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3443 | ||
3444 | /* Update the instruction word. */ | |
74d1c347 | 3445 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3446 | return bfd_reloc_ok; |
3447 | } | |
3448 | ||
30667bf3 AM |
3449 | /* Relocate an HPPA ELF section. */ |
3450 | ||
b34976b6 | 3451 | static bfd_boolean |
c39a58e6 AM |
3452 | elf32_hppa_relocate_section (bfd *output_bfd, |
3453 | struct bfd_link_info *info, | |
3454 | bfd *input_bfd, | |
3455 | asection *input_section, | |
3456 | bfd_byte *contents, | |
3457 | Elf_Internal_Rela *relocs, | |
3458 | Elf_Internal_Sym *local_syms, | |
3459 | asection **local_sections) | |
30667bf3 | 3460 | { |
30667bf3 | 3461 | bfd_vma *local_got_offsets; |
83c81bfe | 3462 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3463 | Elf_Internal_Shdr *symtab_hdr; |
875c0872 | 3464 | Elf_Internal_Rela *rela; |
30667bf3 | 3465 | Elf_Internal_Rela *relend; |
30667bf3 | 3466 | |
1049f94e | 3467 | if (info->relocatable) |
b34976b6 | 3468 | return TRUE; |
f0fe0e16 | 3469 | |
30667bf3 AM |
3470 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; |
3471 | ||
83c81bfe | 3472 | htab = hppa_link_hash_table (info); |
74d1c347 | 3473 | local_got_offsets = elf_local_got_offsets (input_bfd); |
30667bf3 | 3474 | |
875c0872 | 3475 | rela = relocs; |
30667bf3 | 3476 | relend = relocs + input_section->reloc_count; |
875c0872 | 3477 | for (; rela < relend; rela++) |
30667bf3 AM |
3478 | { |
3479 | unsigned int r_type; | |
3480 | reloc_howto_type *howto; | |
3481 | unsigned int r_symndx; | |
875c0872 | 3482 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 AM |
3483 | Elf_Internal_Sym *sym; |
3484 | asection *sym_sec; | |
3485 | bfd_vma relocation; | |
875c0872 | 3486 | bfd_reloc_status_type rstatus; |
30667bf3 | 3487 | const char *sym_name; |
b34976b6 AM |
3488 | bfd_boolean plabel; |
3489 | bfd_boolean warned_undef; | |
30667bf3 | 3490 | |
875c0872 | 3491 | r_type = ELF32_R_TYPE (rela->r_info); |
30667bf3 AM |
3492 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) |
3493 | { | |
3494 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3495 | return FALSE; |
30667bf3 AM |
3496 | } |
3497 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3498 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3499 | continue; | |
3500 | ||
30667bf3 | 3501 | /* This is a final link. */ |
875c0872 DA |
3502 | r_symndx = ELF32_R_SYM (rela->r_info); |
3503 | hh = NULL; | |
30667bf3 AM |
3504 | sym = NULL; |
3505 | sym_sec = NULL; | |
b34976b6 | 3506 | warned_undef = FALSE; |
30667bf3 AM |
3507 | if (r_symndx < symtab_hdr->sh_info) |
3508 | { | |
3509 | /* This is a local symbol, h defaults to NULL. */ | |
3510 | sym = local_syms + r_symndx; | |
3511 | sym_sec = local_sections[r_symndx]; | |
875c0872 | 3512 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela); |
30667bf3 AM |
3513 | } |
3514 | else | |
3515 | { | |
875c0872 | 3516 | struct elf_link_hash_entry *eh; |
560e09e9 | 3517 | bfd_boolean unresolved_reloc; |
b2a8e766 | 3518 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); |
560e09e9 | 3519 | |
875c0872 | 3520 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela, |
b2a8e766 | 3521 | r_symndx, symtab_hdr, sym_hashes, |
875c0872 | 3522 | eh, sym_sec, relocation, |
b2a8e766 | 3523 | unresolved_reloc, warned_undef); |
560e09e9 NC |
3524 | |
3525 | if (relocation == 0 | |
875c0872 DA |
3526 | && eh->root.type != bfd_link_hash_defined |
3527 | && eh->root.type != bfd_link_hash_defweak | |
3528 | && eh->root.type != bfd_link_hash_undefweak) | |
4fc8051d | 3529 | { |
59c2e50f | 3530 | if (info->unresolved_syms_in_objects == RM_IGNORE |
875c0872 DA |
3531 | && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT |
3532 | && eh->type == STT_PARISC_MILLI) | |
560e09e9 NC |
3533 | { |
3534 | if (! info->callbacks->undefined_symbol | |
875c0872 DA |
3535 | (info, eh->root.root.string, input_bfd, |
3536 | input_section, rela->r_offset, FALSE)) | |
560e09e9 NC |
3537 | return FALSE; |
3538 | warned_undef = TRUE; | |
3539 | } | |
30667bf3 | 3540 | } |
875c0872 | 3541 | hh = hppa_elf_hash_entry (eh); |
30667bf3 AM |
3542 | } |
3543 | ||
3544 | /* Do any required modifications to the relocation value, and | |
25f72752 AM |
3545 | determine what types of dynamic info we need to output, if |
3546 | any. */ | |
74d1c347 | 3547 | plabel = 0; |
30667bf3 AM |
3548 | switch (r_type) |
3549 | { | |
3550 | case R_PARISC_DLTIND14F: | |
3551 | case R_PARISC_DLTIND14R: | |
3552 | case R_PARISC_DLTIND21L: | |
ce757d15 AM |
3553 | { |
3554 | bfd_vma off; | |
b34976b6 | 3555 | bfd_boolean do_got = 0; |
ce757d15 AM |
3556 | |
3557 | /* Relocation is to the entry for this symbol in the | |
3558 | global offset table. */ | |
875c0872 | 3559 | if (hh != NULL) |
ce757d15 | 3560 | { |
b34976b6 | 3561 | bfd_boolean dyn; |
ce757d15 | 3562 | |
a63e02c7 DA |
3563 | off = hh->eh.got.offset; |
3564 | dyn = htab->etab.dynamic_sections_created; | |
c152c796 | 3565 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, |
a63e02c7 | 3566 | &hh->eh)) |
ce757d15 AM |
3567 | { |
3568 | /* If we aren't going to call finish_dynamic_symbol, | |
3569 | then we need to handle initialisation of the .got | |
3570 | entry and create needed relocs here. Since the | |
3571 | offset must always be a multiple of 4, we use the | |
3572 | least significant bit to record whether we have | |
3573 | initialised it already. */ | |
3574 | if ((off & 1) != 0) | |
3575 | off &= ~1; | |
3576 | else | |
3577 | { | |
a63e02c7 | 3578 | hh->eh.got.offset |= 1; |
ce757d15 AM |
3579 | do_got = 1; |
3580 | } | |
3581 | } | |
3582 | } | |
3583 | else | |
3584 | { | |
3585 | /* Local symbol case. */ | |
3586 | if (local_got_offsets == NULL) | |
3587 | abort (); | |
3588 | ||
3589 | off = local_got_offsets[r_symndx]; | |
3590 | ||
3591 | /* The offset must always be a multiple of 4. We use | |
3592 | the least significant bit to record whether we have | |
3593 | already generated the necessary reloc. */ | |
3594 | if ((off & 1) != 0) | |
3595 | off &= ~1; | |
3596 | else | |
3597 | { | |
3598 | local_got_offsets[r_symndx] |= 1; | |
3599 | do_got = 1; | |
3600 | } | |
3601 | } | |
68fb2e56 | 3602 | |
ce757d15 AM |
3603 | if (do_got) |
3604 | { | |
3605 | if (info->shared) | |
3606 | { | |
3607 | /* Output a dynamic relocation for this GOT entry. | |
3608 | In this case it is relative to the base of the | |
3609 | object because the symbol index is zero. */ | |
3610 | Elf_Internal_Rela outrel; | |
947216bf | 3611 | bfd_byte *loc; |
875c0872 | 3612 | asection *sec = htab->srelgot; |
ce757d15 AM |
3613 | |
3614 | outrel.r_offset = (off | |
3615 | + htab->sgot->output_offset | |
3616 | + htab->sgot->output_section->vma); | |
3617 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); | |
3618 | outrel.r_addend = relocation; | |
875c0872 DA |
3619 | loc = sec->contents; |
3620 | loc += sec->reloc_count++ * sizeof (Elf32_External_Rela); | |
ce757d15 AM |
3621 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
3622 | } | |
3623 | else | |
30667bf3 | 3624 | bfd_put_32 (output_bfd, relocation, |
83c81bfe | 3625 | htab->sgot->contents + off); |
ce757d15 | 3626 | } |
30667bf3 | 3627 | |
ce757d15 AM |
3628 | if (off >= (bfd_vma) -2) |
3629 | abort (); | |
30667bf3 | 3630 | |
ce757d15 AM |
3631 | /* Add the base of the GOT to the relocation value. */ |
3632 | relocation = (off | |
3633 | + htab->sgot->output_offset | |
3634 | + htab->sgot->output_section->vma); | |
3635 | } | |
30667bf3 | 3636 | break; |
252b5132 | 3637 | |
c46b7515 AM |
3638 | case R_PARISC_SEGREL32: |
3639 | /* If this is the first SEGREL relocation, then initialize | |
3640 | the segment base values. */ | |
83c81bfe AM |
3641 | if (htab->text_segment_base == (bfd_vma) -1) |
3642 | bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); | |
c46b7515 AM |
3643 | break; |
3644 | ||
30667bf3 AM |
3645 | case R_PARISC_PLABEL14R: |
3646 | case R_PARISC_PLABEL21L: | |
3647 | case R_PARISC_PLABEL32: | |
a63e02c7 | 3648 | if (htab->etab.dynamic_sections_created) |
252b5132 | 3649 | { |
ce757d15 | 3650 | bfd_vma off; |
b34976b6 | 3651 | bfd_boolean do_plt = 0; |
74d1c347 AM |
3652 | /* If we have a global symbol with a PLT slot, then |
3653 | redirect this relocation to it. */ | |
875c0872 | 3654 | if (hh != NULL) |
74d1c347 | 3655 | { |
a63e02c7 | 3656 | off = hh->eh.plt.offset; |
c152c796 | 3657 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, |
a63e02c7 | 3658 | &hh->eh)) |
8dea1268 AM |
3659 | { |
3660 | /* In a non-shared link, adjust_dynamic_symbols | |
3661 | isn't called for symbols forced local. We | |
dc810e39 | 3662 | need to write out the plt entry here. */ |
8dea1268 AM |
3663 | if ((off & 1) != 0) |
3664 | off &= ~1; | |
3665 | else | |
3666 | { | |
a63e02c7 | 3667 | hh->eh.plt.offset |= 1; |
ce757d15 | 3668 | do_plt = 1; |
8dea1268 AM |
3669 | } |
3670 | } | |
74d1c347 AM |
3671 | } |
3672 | else | |
3673 | { | |
68fb2e56 AM |
3674 | bfd_vma *local_plt_offsets; |
3675 | ||
3676 | if (local_got_offsets == NULL) | |
3677 | abort (); | |
74d1c347 | 3678 | |
68fb2e56 AM |
3679 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3680 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3681 | |
3682 | /* As for the local .got entry case, we use the last | |
3683 | bit to record whether we've already initialised | |
3684 | this local .plt entry. */ | |
3685 | if ((off & 1) != 0) | |
3686 | off &= ~1; | |
ce757d15 AM |
3687 | else |
3688 | { | |
3689 | local_plt_offsets[r_symndx] |= 1; | |
3690 | do_plt = 1; | |
3691 | } | |
3692 | } | |
3693 | ||
3694 | if (do_plt) | |
3695 | { | |
3696 | if (info->shared) | |
3697 | { | |
3698 | /* Output a dynamic IPLT relocation for this | |
3699 | PLT entry. */ | |
3700 | Elf_Internal_Rela outrel; | |
947216bf AM |
3701 | bfd_byte *loc; |
3702 | asection *s = htab->srelplt; | |
ce757d15 AM |
3703 | |
3704 | outrel.r_offset = (off | |
3705 | + htab->splt->output_offset | |
3706 | + htab->splt->output_section->vma); | |
3707 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3708 | outrel.r_addend = relocation; | |
947216bf AM |
3709 | loc = s->contents; |
3710 | loc += s->reloc_count++ * sizeof (Elf32_External_Rela); | |
ce757d15 AM |
3711 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
3712 | } | |
74d1c347 AM |
3713 | else |
3714 | { | |
3715 | bfd_put_32 (output_bfd, | |
3716 | relocation, | |
83c81bfe | 3717 | htab->splt->contents + off); |
74d1c347 | 3718 | bfd_put_32 (output_bfd, |
83c81bfe AM |
3719 | elf_gp (htab->splt->output_section->owner), |
3720 | htab->splt->contents + off + 4); | |
74d1c347 AM |
3721 | } |
3722 | } | |
3723 | ||
68fb2e56 | 3724 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3725 | abort (); |
74d1c347 AM |
3726 | |
3727 | /* PLABELs contain function pointers. Relocation is to | |
3728 | the entry for the function in the .plt. The magic +2 | |
3729 | offset signals to $$dyncall that the function pointer | |
3730 | is in the .plt and thus has a gp pointer too. | |
3731 | Exception: Undefined PLABELs should have a value of | |
3732 | zero. */ | |
875c0872 | 3733 | if (hh == NULL |
a63e02c7 DA |
3734 | || (hh->eh.root.type != bfd_link_hash_undefweak |
3735 | && hh->eh.root.type != bfd_link_hash_undefined)) | |
74d1c347 AM |
3736 | { |
3737 | relocation = (off | |
83c81bfe AM |
3738 | + htab->splt->output_offset |
3739 | + htab->splt->output_section->vma | |
74d1c347 AM |
3740 | + 2); |
3741 | } | |
3742 | plabel = 1; | |
30667bf3 AM |
3743 | } |
3744 | /* Fall through and possibly emit a dynamic relocation. */ | |
3745 | ||
3746 | case R_PARISC_DIR17F: | |
3747 | case R_PARISC_DIR17R: | |
47d89dba | 3748 | case R_PARISC_DIR14F: |
30667bf3 AM |
3749 | case R_PARISC_DIR14R: |
3750 | case R_PARISC_DIR21L: | |
3751 | case R_PARISC_DPREL14F: | |
3752 | case R_PARISC_DPREL14R: | |
3753 | case R_PARISC_DPREL21L: | |
3754 | case R_PARISC_DIR32: | |
ec338859 AM |
3755 | /* r_symndx will be zero only for relocs against symbols |
3756 | from removed linkonce sections, or sections discarded by | |
3757 | a linker script. */ | |
3758 | if (r_symndx == 0 | |
3759 | || (input_section->flags & SEC_ALLOC) == 0) | |
3760 | break; | |
3761 | ||
30667bf3 | 3762 | /* The reloc types handled here and this conditional |
56882138 | 3763 | expression must match the code in ..check_relocs and |
ec338859 | 3764 | allocate_dynrelocs. ie. We need exactly the same condition |
56882138 AM |
3765 | as in ..check_relocs, with some extra conditions (dynindx |
3766 | test in this case) to cater for relocs removed by | |
ec338859 | 3767 | allocate_dynrelocs. If you squint, the non-shared test |
56882138 AM |
3768 | here does indeed match the one in ..check_relocs, the |
3769 | difference being that here we test DEF_DYNAMIC as well as | |
3770 | !DEF_REGULAR. All common syms end up with !DEF_REGULAR, | |
3771 | which is why we can't use just that test here. | |
3772 | Conversely, DEF_DYNAMIC can't be used in check_relocs as | |
3773 | there all files have not been loaded. */ | |
446f2863 | 3774 | if ((info->shared |
875c0872 | 3775 | && (hh == NULL |
a63e02c7 DA |
3776 | || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT |
3777 | || hh->eh.root.type != bfd_link_hash_undefweak) | |
446f2863 | 3778 | && (IS_ABSOLUTE_RELOC (r_type) |
a63e02c7 | 3779 | || !SYMBOL_CALLS_LOCAL (info, &hh->eh))) |
446f2863 | 3780 | || (!info->shared |
875c0872 | 3781 | && hh != NULL |
a63e02c7 DA |
3782 | && hh->eh.dynindx != -1 |
3783 | && !hh->eh.non_got_ref | |
4fc8051d | 3784 | && ((ELIMINATE_COPY_RELOCS |
a63e02c7 DA |
3785 | && hh->eh.def_dynamic |
3786 | && !hh->eh.def_regular) | |
3787 | || hh->eh.root.type == bfd_link_hash_undefweak | |
3788 | || hh->eh.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
3789 | { |
3790 | Elf_Internal_Rela outrel; | |
b34976b6 | 3791 | bfd_boolean skip; |
98ceb8ce | 3792 | asection *sreloc; |
947216bf | 3793 | bfd_byte *loc; |
252b5132 | 3794 | |
30667bf3 AM |
3795 | /* When generating a shared object, these relocations |
3796 | are copied into the output file to be resolved at run | |
3797 | time. */ | |
252b5132 | 3798 | |
875c0872 | 3799 | outrel.r_addend = rela->r_addend; |
c629eae0 JJ |
3800 | outrel.r_offset = |
3801 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
875c0872 | 3802 | rela->r_offset); |
0bb2d96a JJ |
3803 | skip = (outrel.r_offset == (bfd_vma) -1 |
3804 | || outrel.r_offset == (bfd_vma) -2); | |
30667bf3 AM |
3805 | outrel.r_offset += (input_section->output_offset |
3806 | + input_section->output_section->vma); | |
875c0872 | 3807 | |
30667bf3 | 3808 | if (skip) |
252b5132 | 3809 | { |
30667bf3 | 3810 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 3811 | } |
875c0872 | 3812 | else if (hh != NULL |
a63e02c7 | 3813 | && hh->eh.dynindx != -1 |
74d1c347 | 3814 | && (plabel |
446f2863 AM |
3815 | || !IS_ABSOLUTE_RELOC (r_type) |
3816 | || !info->shared | |
74d1c347 | 3817 | || !info->symbolic |
a63e02c7 | 3818 | || !hh->eh.def_regular)) |
252b5132 | 3819 | { |
a63e02c7 | 3820 | outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type); |
30667bf3 AM |
3821 | } |
3822 | else /* It's a local symbol, or one marked to become local. */ | |
3823 | { | |
3824 | int indx = 0; | |
edd21aca | 3825 | |
30667bf3 AM |
3826 | /* Add the absolute offset of the symbol. */ |
3827 | outrel.r_addend += relocation; | |
edd21aca | 3828 | |
74d1c347 AM |
3829 | /* Global plabels need to be processed by the |
3830 | dynamic linker so that functions have at most one | |
3831 | fptr. For this reason, we need to differentiate | |
3832 | between global and local plabels, which we do by | |
3833 | providing the function symbol for a global plabel | |
3834 | reloc, and no symbol for local plabels. */ | |
3835 | if (! plabel | |
3836 | && sym_sec != NULL | |
30667bf3 AM |
3837 | && sym_sec->output_section != NULL |
3838 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 3839 | { |
4b71bec0 DA |
3840 | /* Skip this relocation if the output section has |
3841 | been discarded. */ | |
3842 | if (bfd_is_abs_section (sym_sec->output_section)) | |
3843 | break; | |
3844 | ||
30667bf3 AM |
3845 | indx = elf_section_data (sym_sec->output_section)->dynindx; |
3846 | /* We are turning this relocation into one | |
3847 | against a section symbol, so subtract out the | |
3848 | output section's address but not the offset | |
3849 | of the input section in the output section. */ | |
3850 | outrel.r_addend -= sym_sec->output_section->vma; | |
252b5132 | 3851 | } |
252b5132 | 3852 | |
30667bf3 AM |
3853 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
3854 | } | |
98ceb8ce AM |
3855 | sreloc = elf_section_data (input_section)->sreloc; |
3856 | if (sreloc == NULL) | |
3857 | abort (); | |
3858 | ||
947216bf AM |
3859 | loc = sreloc->contents; |
3860 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
98ceb8ce | 3861 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
30667bf3 AM |
3862 | } |
3863 | break; | |
edd21aca | 3864 | |
30667bf3 AM |
3865 | default: |
3866 | break; | |
3867 | } | |
252b5132 | 3868 | |
875c0872 DA |
3869 | rstatus = final_link_relocate (input_section, contents, rela, relocation, |
3870 | htab, sym_sec, hh, info); | |
252b5132 | 3871 | |
875c0872 | 3872 | if (rstatus == bfd_reloc_ok) |
30667bf3 | 3873 | continue; |
252b5132 | 3874 | |
875c0872 | 3875 | if (hh != NULL) |
a63e02c7 | 3876 | sym_name = hh->eh.root.root.string; |
30667bf3 AM |
3877 | else |
3878 | { | |
3879 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
3880 | symtab_hdr->sh_link, | |
3881 | sym->st_name); | |
3882 | if (sym_name == NULL) | |
b34976b6 | 3883 | return FALSE; |
30667bf3 AM |
3884 | if (*sym_name == '\0') |
3885 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
3886 | } | |
edd21aca | 3887 | |
30667bf3 | 3888 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 3889 | |
875c0872 | 3890 | if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported) |
30667bf3 | 3891 | { |
875c0872 | 3892 | if (rstatus == bfd_reloc_notsupported || !warned_undef) |
f09ebc7d AM |
3893 | { |
3894 | (*_bfd_error_handler) | |
d003868e AM |
3895 | (_("%B(%A+0x%lx): cannot handle %s for %s"), |
3896 | input_bfd, | |
3897 | input_section, | |
875c0872 | 3898 | (long) rela->r_offset, |
f09ebc7d AM |
3899 | howto->name, |
3900 | sym_name); | |
3901 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3902 | return FALSE; |
f09ebc7d | 3903 | } |
30667bf3 AM |
3904 | } |
3905 | else | |
3906 | { | |
3907 | if (!((*info->callbacks->reloc_overflow) | |
a63e02c7 | 3908 | (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name, |
875c0872 | 3909 | (bfd_vma) 0, input_bfd, input_section, rela->r_offset))) |
b34976b6 | 3910 | return FALSE; |
30667bf3 AM |
3911 | } |
3912 | } | |
edd21aca | 3913 | |
b34976b6 | 3914 | return TRUE; |
30667bf3 | 3915 | } |
252b5132 | 3916 | |
30667bf3 AM |
3917 | /* Finish up dynamic symbol handling. We set the contents of various |
3918 | dynamic sections here. */ | |
252b5132 | 3919 | |
b34976b6 | 3920 | static bfd_boolean |
c39a58e6 AM |
3921 | elf32_hppa_finish_dynamic_symbol (bfd *output_bfd, |
3922 | struct bfd_link_info *info, | |
875c0872 | 3923 | struct elf_link_hash_entry *eh, |
c39a58e6 | 3924 | Elf_Internal_Sym *sym) |
30667bf3 | 3925 | { |
83c81bfe | 3926 | struct elf32_hppa_link_hash_table *htab; |
875c0872 | 3927 | Elf_Internal_Rela rela; |
a252afa4 | 3928 | bfd_byte *loc; |
edd21aca | 3929 | |
83c81bfe | 3930 | htab = hppa_link_hash_table (info); |
30667bf3 | 3931 | |
875c0872 | 3932 | if (eh->plt.offset != (bfd_vma) -1) |
30667bf3 AM |
3933 | { |
3934 | bfd_vma value; | |
30667bf3 | 3935 | |
875c0872 | 3936 | if (eh->plt.offset & 1) |
8dea1268 AM |
3937 | abort (); |
3938 | ||
30667bf3 AM |
3939 | /* This symbol has an entry in the procedure linkage table. Set |
3940 | it up. | |
3941 | ||
3942 | The format of a plt entry is | |
74d1c347 AM |
3943 | <funcaddr> |
3944 | <__gp> | |
47d89dba | 3945 | */ |
30667bf3 | 3946 | value = 0; |
875c0872 DA |
3947 | if (eh->root.type == bfd_link_hash_defined |
3948 | || eh->root.type == bfd_link_hash_defweak) | |
30667bf3 | 3949 | { |
875c0872 DA |
3950 | value = eh->root.u.def.value; |
3951 | if (eh->root.u.def.section->output_section != NULL) | |
3952 | value += (eh->root.u.def.section->output_offset | |
3953 | + eh->root.u.def.section->output_section->vma); | |
252b5132 | 3954 | } |
edd21aca | 3955 | |
a252afa4 | 3956 | /* Create a dynamic IPLT relocation for this entry. */ |
875c0872 | 3957 | rela.r_offset = (eh->plt.offset |
a252afa4 DA |
3958 | + htab->splt->output_offset |
3959 | + htab->splt->output_section->vma); | |
875c0872 | 3960 | if (eh->dynindx != -1) |
30667bf3 | 3961 | { |
875c0872 DA |
3962 | rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT); |
3963 | rela.r_addend = 0; | |
30667bf3 | 3964 | } |
ce757d15 | 3965 | else |
47d89dba | 3966 | { |
a252afa4 DA |
3967 | /* This symbol has been marked to become local, and is |
3968 | used by a plabel so must be kept in the .plt. */ | |
875c0872 DA |
3969 | rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); |
3970 | rela.r_addend = value; | |
47d89dba AM |
3971 | } |
3972 | ||
a252afa4 DA |
3973 | loc = htab->srelplt->contents; |
3974 | loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela); | |
875c0872 | 3975 | bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc); |
a252afa4 | 3976 | |
875c0872 | 3977 | if (!eh->def_regular) |
30667bf3 AM |
3978 | { |
3979 | /* Mark the symbol as undefined, rather than as defined in | |
3980 | the .plt section. Leave the value alone. */ | |
3981 | sym->st_shndx = SHN_UNDEF; | |
3982 | } | |
3983 | } | |
edd21aca | 3984 | |
875c0872 | 3985 | if (eh->got.offset != (bfd_vma) -1) |
30667bf3 | 3986 | { |
30667bf3 AM |
3987 | /* This symbol has an entry in the global offset table. Set it |
3988 | up. */ | |
3989 | ||
875c0872 | 3990 | rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1) |
83c81bfe AM |
3991 | + htab->sgot->output_offset |
3992 | + htab->sgot->output_section->vma); | |
30667bf3 | 3993 | |
4dc86686 AM |
3994 | /* If this is a -Bsymbolic link and the symbol is defined |
3995 | locally or was forced to be local because of a version file, | |
3996 | we just want to emit a RELATIVE reloc. The entry in the | |
3997 | global offset table will already have been initialized in the | |
3998 | relocate_section function. */ | |
3999 | if (info->shared | |
875c0872 DA |
4000 | && (info->symbolic || eh->dynindx == -1) |
4001 | && eh->def_regular) | |
30667bf3 | 4002 | { |
875c0872 DA |
4003 | rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
4004 | rela.r_addend = (eh->root.u.def.value | |
4005 | + eh->root.u.def.section->output_offset | |
4006 | + eh->root.u.def.section->output_section->vma); | |
30667bf3 AM |
4007 | } |
4008 | else | |
4009 | { | |
875c0872 | 4010 | if ((eh->got.offset & 1) != 0) |
49e9d0d3 | 4011 | abort (); |
875c0872 DA |
4012 | |
4013 | bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1)); | |
4014 | rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32); | |
4015 | rela.r_addend = 0; | |
30667bf3 | 4016 | } |
edd21aca | 4017 | |
947216bf AM |
4018 | loc = htab->srelgot->contents; |
4019 | loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
875c0872 | 4020 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
30667bf3 | 4021 | } |
edd21aca | 4022 | |
875c0872 | 4023 | if (eh->needs_copy) |
30667bf3 | 4024 | { |
875c0872 | 4025 | asection *sec; |
30667bf3 AM |
4026 | |
4027 | /* This symbol needs a copy reloc. Set it up. */ | |
4028 | ||
875c0872 DA |
4029 | if (! (eh->dynindx != -1 |
4030 | && (eh->root.type == bfd_link_hash_defined | |
4031 | || eh->root.type == bfd_link_hash_defweak))) | |
49e9d0d3 | 4032 | abort (); |
30667bf3 | 4033 | |
875c0872 | 4034 | sec = htab->srelbss; |
30667bf3 | 4035 | |
875c0872 DA |
4036 | rela.r_offset = (eh->root.u.def.value |
4037 | + eh->root.u.def.section->output_offset | |
4038 | + eh->root.u.def.section->output_section->vma); | |
4039 | rela.r_addend = 0; | |
4040 | rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY); | |
4041 | loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela); | |
4042 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
30667bf3 AM |
4043 | } |
4044 | ||
4045 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
875c0872 DA |
4046 | if (eh->root.root.string[0] == '_' |
4047 | && (strcmp (eh->root.root.string, "_DYNAMIC") == 0 | |
4048 | || strcmp (eh->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)) | |
30667bf3 AM |
4049 | { |
4050 | sym->st_shndx = SHN_ABS; | |
4051 | } | |
4052 | ||
b34976b6 | 4053 | return TRUE; |
30667bf3 AM |
4054 | } |
4055 | ||
98ceb8ce AM |
4056 | /* Used to decide how to sort relocs in an optimal manner for the |
4057 | dynamic linker, before writing them out. */ | |
4058 | ||
4059 | static enum elf_reloc_type_class | |
c39a58e6 | 4060 | elf32_hppa_reloc_type_class (const Elf_Internal_Rela *rela) |
98ceb8ce AM |
4061 | { |
4062 | if (ELF32_R_SYM (rela->r_info) == 0) | |
4063 | return reloc_class_relative; | |
4064 | ||
4065 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4066 | { | |
4067 | case R_PARISC_IPLT: | |
4068 | return reloc_class_plt; | |
4069 | case R_PARISC_COPY: | |
4070 | return reloc_class_copy; | |
4071 | default: | |
4072 | return reloc_class_normal; | |
4073 | } | |
4074 | } | |
4075 | ||
30667bf3 AM |
4076 | /* Finish up the dynamic sections. */ |
4077 | ||
b34976b6 | 4078 | static bfd_boolean |
c39a58e6 AM |
4079 | elf32_hppa_finish_dynamic_sections (bfd *output_bfd, |
4080 | struct bfd_link_info *info) | |
30667bf3 AM |
4081 | { |
4082 | bfd *dynobj; | |
83c81bfe | 4083 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
4084 | asection *sdyn; |
4085 | ||
83c81bfe | 4086 | htab = hppa_link_hash_table (info); |
a63e02c7 | 4087 | dynobj = htab->etab.dynobj; |
30667bf3 AM |
4088 | |
4089 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4090 | ||
a63e02c7 | 4091 | if (htab->etab.dynamic_sections_created) |
30667bf3 AM |
4092 | { |
4093 | Elf32_External_Dyn *dyncon, *dynconend; | |
4094 | ||
49e9d0d3 AM |
4095 | if (sdyn == NULL) |
4096 | abort (); | |
30667bf3 AM |
4097 | |
4098 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 4099 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
30667bf3 | 4100 | for (; dyncon < dynconend; dyncon++) |
edd21aca | 4101 | { |
30667bf3 AM |
4102 | Elf_Internal_Dyn dyn; |
4103 | asection *s; | |
4104 | ||
4105 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4106 | ||
4107 | switch (dyn.d_tag) | |
4108 | { | |
4109 | default: | |
3ac8354b | 4110 | continue; |
30667bf3 AM |
4111 | |
4112 | case DT_PLTGOT: | |
4113 | /* Use PLTGOT to set the GOT register. */ | |
4114 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
30667bf3 AM |
4115 | break; |
4116 | ||
4117 | case DT_JMPREL: | |
83c81bfe | 4118 | s = htab->srelplt; |
30667bf3 | 4119 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
30667bf3 AM |
4120 | break; |
4121 | ||
4122 | case DT_PLTRELSZ: | |
83c81bfe | 4123 | s = htab->srelplt; |
eea6121a | 4124 | dyn.d_un.d_val = s->size; |
30667bf3 | 4125 | break; |
4e12ff7f AM |
4126 | |
4127 | case DT_RELASZ: | |
4128 | /* Don't count procedure linkage table relocs in the | |
4129 | overall reloc count. */ | |
6348e046 AM |
4130 | s = htab->srelplt; |
4131 | if (s == NULL) | |
4132 | continue; | |
eea6121a | 4133 | dyn.d_un.d_val -= s->size; |
6348e046 AM |
4134 | break; |
4135 | ||
4136 | case DT_RELA: | |
4137 | /* We may not be using the standard ELF linker script. | |
4138 | If .rela.plt is the first .rela section, we adjust | |
4139 | DT_RELA to not include it. */ | |
4140 | s = htab->srelplt; | |
4141 | if (s == NULL) | |
4142 | continue; | |
4143 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
4144 | continue; | |
eea6121a | 4145 | dyn.d_un.d_ptr += s->size; |
4e12ff7f | 4146 | break; |
30667bf3 | 4147 | } |
3ac8354b AM |
4148 | |
4149 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
edd21aca | 4150 | } |
252b5132 | 4151 | } |
edd21aca | 4152 | |
eea6121a | 4153 | if (htab->sgot != NULL && htab->sgot->size != 0) |
30667bf3 | 4154 | { |
74d1c347 AM |
4155 | /* Fill in the first entry in the global offset table. |
4156 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 | 4157 | bfd_put_32 (output_bfd, |
c39a58e6 | 4158 | sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0, |
83c81bfe | 4159 | htab->sgot->contents); |
30667bf3 | 4160 | |
74d1c347 | 4161 | /* The second entry is reserved for use by the dynamic linker. */ |
83c81bfe | 4162 | memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4163 | |
30667bf3 | 4164 | /* Set .got entry size. */ |
83c81bfe | 4165 | elf_section_data (htab->sgot->output_section) |
74d1c347 | 4166 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; |
30667bf3 AM |
4167 | } |
4168 | ||
eea6121a | 4169 | if (htab->splt != NULL && htab->splt->size != 0) |
47d89dba AM |
4170 | { |
4171 | /* Set plt entry size. */ | |
83c81bfe | 4172 | elf_section_data (htab->splt->output_section) |
47d89dba AM |
4173 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; |
4174 | ||
83c81bfe | 4175 | if (htab->need_plt_stub) |
47d89dba AM |
4176 | { |
4177 | /* Set up the .plt stub. */ | |
83c81bfe | 4178 | memcpy (htab->splt->contents |
eea6121a | 4179 | + htab->splt->size - sizeof (plt_stub), |
47d89dba AM |
4180 | plt_stub, sizeof (plt_stub)); |
4181 | ||
83c81bfe AM |
4182 | if ((htab->splt->output_offset |
4183 | + htab->splt->output_section->vma | |
eea6121a | 4184 | + htab->splt->size) |
83c81bfe AM |
4185 | != (htab->sgot->output_offset |
4186 | + htab->sgot->output_section->vma)) | |
47d89dba AM |
4187 | { |
4188 | (*_bfd_error_handler) | |
4189 | (_(".got section not immediately after .plt section")); | |
b34976b6 | 4190 | return FALSE; |
47d89dba AM |
4191 | } |
4192 | } | |
4193 | } | |
30667bf3 | 4194 | |
b34976b6 | 4195 | return TRUE; |
30667bf3 | 4196 | } |
252b5132 | 4197 | |
d952f17a AM |
4198 | /* Tweak the OSABI field of the elf header. */ |
4199 | ||
4200 | static void | |
c39a58e6 AM |
4201 | elf32_hppa_post_process_headers (bfd *abfd, |
4202 | struct bfd_link_info *info ATTRIBUTE_UNUSED) | |
d952f17a AM |
4203 | { |
4204 | Elf_Internal_Ehdr * i_ehdrp; | |
4205 | ||
4206 | i_ehdrp = elf_elfheader (abfd); | |
4207 | ||
4208 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
4209 | { | |
4210 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_LINUX; | |
4211 | } | |
225247f0 JT |
4212 | else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0) |
4213 | { | |
4214 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_NETBSD; | |
4215 | } | |
d952f17a AM |
4216 | else |
4217 | { | |
4218 | i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX; | |
4219 | } | |
4220 | } | |
4221 | ||
30667bf3 AM |
4222 | /* Called when writing out an object file to decide the type of a |
4223 | symbol. */ | |
4224 | static int | |
c39a58e6 | 4225 | elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type) |
30667bf3 AM |
4226 | { |
4227 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4228 | return STT_PARISC_MILLI; | |
4229 | else | |
4230 | return type; | |
252b5132 RH |
4231 | } |
4232 | ||
4233 | /* Misc BFD support code. */ | |
30667bf3 AM |
4234 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4235 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
4236 | #define elf_info_to_howto elf_hppa_info_to_howto | |
4237 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4238 | |
252b5132 | 4239 | /* Stuff for the BFD linker. */ |
c46b7515 | 4240 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 | 4241 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
e2d34d7d | 4242 | #define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free |
30667bf3 | 4243 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol |
ebe50bae | 4244 | #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol |
30667bf3 AM |
4245 | #define elf_backend_check_relocs elf32_hppa_check_relocs |
4246 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4247 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4248 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4249 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4250 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4251 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4252 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
4253 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook | |
4254 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
edfc032f AM |
4255 | #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus |
4256 | #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo | |
30667bf3 AM |
4257 | #define elf_backend_object_p elf32_hppa_object_p |
4258 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d952f17a | 4259 | #define elf_backend_post_process_headers elf32_hppa_post_process_headers |
30667bf3 | 4260 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
98ceb8ce | 4261 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
8a696751 | 4262 | #define elf_backend_action_discarded elf_hppa_action_discarded |
30667bf3 AM |
4263 | |
4264 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4265 | #define elf_backend_can_refcount 1 |
30667bf3 AM |
4266 | #define elf_backend_plt_alignment 2 |
4267 | #define elf_backend_want_got_plt 0 | |
4268 | #define elf_backend_plt_readonly 0 | |
4269 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4270 | #define elf_backend_got_header_size 8 |
f0fe0e16 | 4271 | #define elf_backend_rela_normal 1 |
252b5132 RH |
4272 | |
4273 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4274 | #define TARGET_BIG_NAME "elf32-hppa" | |
4275 | #define ELF_ARCH bfd_arch_hppa | |
4276 | #define ELF_MACHINE_CODE EM_PARISC | |
4277 | #define ELF_MAXPAGESIZE 0x1000 | |
4278 | ||
4279 | #include "elf32-target.h" | |
d952f17a AM |
4280 | |
4281 | #undef TARGET_BIG_SYM | |
4282 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec | |
4283 | #undef TARGET_BIG_NAME | |
4284 | #define TARGET_BIG_NAME "elf32-hppa-linux" | |
4285 | ||
4286 | #define INCLUDED_TARGET_FILE 1 | |
4287 | #include "elf32-target.h" | |
225247f0 JT |
4288 | |
4289 | #undef TARGET_BIG_SYM | |
4290 | #define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec | |
4291 | #undef TARGET_BIG_NAME | |
4292 | #define TARGET_BIG_NAME "elf32-hppa-netbsd" | |
4293 | ||
4294 | #include "elf32-target.h" |