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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, |
4dfe6ac6 | 3 | 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
4fbb74a6 | 4 | Free Software Foundation, Inc. |
252b5132 | 5 | |
30667bf3 | 6 | Original code by |
252b5132 RH |
7 | Center for Software Science |
8 | Department of Computer Science | |
9 | University of Utah | |
30667bf3 | 10 | Largely rewritten by Alan Modra <[email protected]> |
9b52905e NC |
11 | Naming cleanup by Carlos O'Donell <[email protected]> |
12 | TLS support written by Randolph Chung <[email protected]> | |
13 | ||
ae9a127f | 14 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 15 | |
ae9a127f NC |
16 | This program is free software; you can redistribute it and/or modify |
17 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 18 | the Free Software Foundation; either version 3 of the License, or |
ae9a127f | 19 | (at your option) any later version. |
252b5132 | 20 | |
ae9a127f NC |
21 | This program is distributed in the hope that it will be useful, |
22 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
23 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
24 | GNU General Public License for more details. | |
252b5132 | 25 | |
ae9a127f NC |
26 | You should have received a copy of the GNU General Public License |
27 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
28 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
29 | MA 02110-1301, USA. */ | |
252b5132 | 30 | |
252b5132 | 31 | #include "sysdep.h" |
3db64b00 | 32 | #include "bfd.h" |
252b5132 RH |
33 | #include "libbfd.h" |
34 | #include "elf-bfd.h" | |
9e103c9c JL |
35 | #include "elf/hppa.h" |
36 | #include "libhppa.h" | |
37 | #include "elf32-hppa.h" | |
38 | #define ARCH_SIZE 32 | |
edd21aca | 39 | #include "elf32-hppa.h" |
189c6563 | 40 | #include "elf-hppa.h" |
9e103c9c | 41 | |
74d1c347 AM |
42 | /* In order to gain some understanding of code in this file without |
43 | knowing all the intricate details of the linker, note the | |
44 | following: | |
45 | ||
46 | Functions named elf32_hppa_* are called by external routines, other | |
47 | functions are only called locally. elf32_hppa_* functions appear | |
48 | in this file more or less in the order in which they are called | |
49 | from external routines. eg. elf32_hppa_check_relocs is called | |
50 | early in the link process, elf32_hppa_finish_dynamic_sections is | |
51 | one of the last functions. */ | |
52 | ||
edd21aca | 53 | /* We use two hash tables to hold information for linking PA ELF objects. |
252b5132 RH |
54 | |
55 | The first is the elf32_hppa_link_hash_table which is derived | |
56 | from the standard ELF linker hash table. We use this as a place to | |
57 | attach other hash tables and static information. | |
58 | ||
59 | The second is the stub hash table which is derived from the | |
60 | base BFD hash table. The stub hash table holds the information | |
30667bf3 AM |
61 | necessary to build the linker stubs during a link. |
62 | ||
63 | There are a number of different stubs generated by the linker. | |
64 | ||
65 | Long branch stub: | |
66 | : ldil LR'X,%r1 | |
67 | : be,n RR'X(%sr4,%r1) | |
68 | ||
69 | PIC long branch stub: | |
70 | : b,l .+8,%r1 | |
3ee1d854 AM |
71 | : addil LR'X - ($PIC_pcrel$0 - 4),%r1 |
72 | : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1) | |
30667bf3 AM |
73 | |
74 | Import stub to call shared library routine from normal object file | |
75 | (single sub-space version) | |
3ee1d854 AM |
76 | : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point |
77 | : ldw RR'lt_ptr+ltoff(%r1),%r21 | |
46fe4e66 | 78 | : bv %r0(%r21) |
3ee1d854 | 79 | : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. |
30667bf3 AM |
80 | |
81 | Import stub to call shared library routine from shared library | |
82 | (single sub-space version) | |
3ee1d854 AM |
83 | : addil LR'ltoff,%r19 ; get procedure entry point |
84 | : ldw RR'ltoff(%r1),%r21 | |
46fe4e66 | 85 | : bv %r0(%r21) |
3ee1d854 | 86 | : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. |
30667bf3 AM |
87 | |
88 | Import stub to call shared library routine from normal object file | |
89 | (multiple sub-space support) | |
3ee1d854 AM |
90 | : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point |
91 | : ldw RR'lt_ptr+ltoff(%r1),%r21 | |
92 | : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value. | |
30667bf3 AM |
93 | : ldsid (%r21),%r1 |
94 | : mtsp %r1,%sr0 | |
95 | : be 0(%sr0,%r21) ; branch to target | |
96 | : stw %rp,-24(%sp) ; save rp | |
97 | ||
98 | Import stub to call shared library routine from shared library | |
99 | (multiple sub-space support) | |
3ee1d854 AM |
100 | : addil LR'ltoff,%r19 ; get procedure entry point |
101 | : ldw RR'ltoff(%r1),%r21 | |
102 | : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value. | |
30667bf3 AM |
103 | : ldsid (%r21),%r1 |
104 | : mtsp %r1,%sr0 | |
105 | : be 0(%sr0,%r21) ; branch to target | |
106 | : stw %rp,-24(%sp) ; save rp | |
107 | ||
108 | Export stub to return from shared lib routine (multiple sub-space support) | |
109 | One of these is created for each exported procedure in a shared | |
110 | library (and stored in the shared lib). Shared lib routines are | |
111 | called via the first instruction in the export stub so that we can | |
112 | do an inter-space return. Not required for single sub-space. | |
113 | : bl,n X,%rp ; trap the return | |
114 | : nop | |
115 | : ldw -24(%sp),%rp ; restore the original rp | |
116 | : ldsid (%rp),%r1 | |
117 | : mtsp %r1,%sr0 | |
ae9a127f | 118 | : be,n 0(%sr0,%rp) ; inter-space return. */ |
30667bf3 | 119 | |
875c0872 DA |
120 | |
121 | /* Variable names follow a coding style. | |
122 | Please follow this (Apps Hungarian) style: | |
123 | ||
124 | Structure/Variable Prefix | |
125 | elf_link_hash_table "etab" | |
126 | elf_link_hash_entry "eh" | |
127 | ||
128 | elf32_hppa_link_hash_table "htab" | |
129 | elf32_hppa_link_hash_entry "hh" | |
130 | ||
131 | bfd_hash_table "btab" | |
132 | bfd_hash_entry "bh" | |
133 | ||
134 | bfd_hash_table containing stubs "bstab" | |
135 | elf32_hppa_stub_hash_entry "hsh" | |
136 | ||
137 | elf32_hppa_dyn_reloc_entry "hdh" | |
138 | ||
139 | Always remember to use GNU Coding Style. */ | |
140 | ||
30667bf3 AM |
141 | #define PLT_ENTRY_SIZE 8 |
142 | #define GOT_ENTRY_SIZE 4 | |
143 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" | |
144 | ||
47d89dba AM |
145 | static const bfd_byte plt_stub[] = |
146 | { | |
147 | 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */ | |
148 | 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */ | |
149 | 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */ | |
150 | #define PLT_STUB_ENTRY (3*4) | |
151 | 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */ | |
152 | 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */ | |
153 | 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */ | |
154 | 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */ | |
155 | }; | |
156 | ||
30667bf3 AM |
157 | /* Section name for stubs is the associated section name plus this |
158 | string. */ | |
159 | #define STUB_SUFFIX ".stub" | |
160 | ||
98ceb8ce AM |
161 | /* We don't need to copy certain PC- or GP-relative dynamic relocs |
162 | into a shared object's dynamic section. All the relocs of the | |
163 | limited class we are interested in, are absolute. */ | |
164 | #ifndef RELATIVE_DYNRELOCS | |
165 | #define RELATIVE_DYNRELOCS 0 | |
446f2863 | 166 | #define IS_ABSOLUTE_RELOC(r_type) 1 |
30667bf3 AM |
167 | #endif |
168 | ||
4fc8051d AM |
169 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
170 | copying dynamic variables from a shared lib into an app's dynbss | |
171 | section, and instead use a dynamic relocation to point into the | |
172 | shared lib. */ | |
173 | #define ELIMINATE_COPY_RELOCS 1 | |
174 | ||
9b52905e NC |
175 | enum elf32_hppa_stub_type |
176 | { | |
30667bf3 AM |
177 | hppa_stub_long_branch, |
178 | hppa_stub_long_branch_shared, | |
179 | hppa_stub_import, | |
180 | hppa_stub_import_shared, | |
181 | hppa_stub_export, | |
182 | hppa_stub_none | |
183 | }; | |
184 | ||
9b52905e NC |
185 | struct elf32_hppa_stub_hash_entry |
186 | { | |
edd21aca | 187 | /* Base hash table entry structure. */ |
a63e02c7 | 188 | struct bfd_hash_entry bh_root; |
252b5132 | 189 | |
edd21aca AM |
190 | /* The stub section. */ |
191 | asection *stub_sec; | |
192 | ||
193 | /* Offset within stub_sec of the beginning of this stub. */ | |
30667bf3 | 194 | bfd_vma stub_offset; |
252b5132 RH |
195 | |
196 | /* Given the symbol's value and its section we can determine its final | |
197 | value when building the stubs (so the stub knows where to jump. */ | |
30667bf3 | 198 | bfd_vma target_value; |
252b5132 | 199 | asection *target_section; |
30667bf3 AM |
200 | |
201 | enum elf32_hppa_stub_type stub_type; | |
202 | ||
203 | /* The symbol table entry, if any, that this was derived from. */ | |
a63e02c7 | 204 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 | 205 | |
25f72752 AM |
206 | /* Where this stub is being called from, or, in the case of combined |
207 | stub sections, the first input section in the group. */ | |
208 | asection *id_sec; | |
252b5132 RH |
209 | }; |
210 | ||
9b52905e NC |
211 | struct elf32_hppa_link_hash_entry |
212 | { | |
a63e02c7 | 213 | struct elf_link_hash_entry eh; |
30667bf3 AM |
214 | |
215 | /* A pointer to the most recently used stub hash entry against this | |
216 | symbol. */ | |
a63e02c7 | 217 | struct elf32_hppa_stub_hash_entry *hsh_cache; |
30667bf3 | 218 | |
30667bf3 AM |
219 | /* Used to count relocations for delayed sizing of relocation |
220 | sections. */ | |
9b52905e NC |
221 | struct elf32_hppa_dyn_reloc_entry |
222 | { | |
30667bf3 | 223 | /* Next relocation in the chain. */ |
a63e02c7 | 224 | struct elf32_hppa_dyn_reloc_entry *hdh_next; |
30667bf3 | 225 | |
98ceb8ce AM |
226 | /* The input section of the reloc. */ |
227 | asection *sec; | |
30667bf3 AM |
228 | |
229 | /* Number of relocs copied in this section. */ | |
230 | bfd_size_type count; | |
98ceb8ce AM |
231 | |
232 | #if RELATIVE_DYNRELOCS | |
233 | /* Number of relative relocs copied for the input section. */ | |
234 | bfd_size_type relative_count; | |
235 | #endif | |
236 | } *dyn_relocs; | |
30667bf3 | 237 | |
9b52905e NC |
238 | enum |
239 | { | |
240 | GOT_UNKNOWN = 0, GOT_NORMAL = 1, GOT_TLS_GD = 2, GOT_TLS_LDM = 4, GOT_TLS_IE = 8 | |
241 | } tls_type; | |
242 | ||
74d1c347 AM |
243 | /* Set if this symbol is used by a plabel reloc. */ |
244 | unsigned int plabel:1; | |
30667bf3 AM |
245 | }; |
246 | ||
9b52905e NC |
247 | struct elf32_hppa_link_hash_table |
248 | { | |
252b5132 | 249 | /* The main hash table. */ |
a63e02c7 | 250 | struct elf_link_hash_table etab; |
252b5132 RH |
251 | |
252 | /* The stub hash table. */ | |
a63e02c7 | 253 | struct bfd_hash_table bstab; |
252b5132 | 254 | |
30667bf3 AM |
255 | /* Linker stub bfd. */ |
256 | bfd *stub_bfd; | |
257 | ||
30667bf3 | 258 | /* Linker call-backs. */ |
c39a58e6 AM |
259 | asection * (*add_stub_section) (const char *, asection *); |
260 | void (*layout_sections_again) (void); | |
30667bf3 | 261 | |
25f72752 AM |
262 | /* Array to keep track of which stub sections have been created, and |
263 | information on stub grouping. */ | |
9b52905e NC |
264 | struct map_stub |
265 | { | |
25f72752 AM |
266 | /* This is the section to which stubs in the group will be |
267 | attached. */ | |
268 | asection *link_sec; | |
269 | /* The stub section. */ | |
270 | asection *stub_sec; | |
25f72752 | 271 | } *stub_group; |
30667bf3 | 272 | |
b4655ea9 AM |
273 | /* Assorted information used by elf32_hppa_size_stubs. */ |
274 | unsigned int bfd_count; | |
275 | int top_index; | |
276 | asection **input_list; | |
277 | Elf_Internal_Sym **all_local_syms; | |
278 | ||
30667bf3 AM |
279 | /* Short-cuts to get to dynamic linker sections. */ |
280 | asection *sgot; | |
281 | asection *srelgot; | |
282 | asection *splt; | |
283 | asection *srelplt; | |
284 | asection *sdynbss; | |
285 | asection *srelbss; | |
47d89dba | 286 | |
c46b7515 AM |
287 | /* Used during a final link to store the base of the text and data |
288 | segments so that we can perform SEGREL relocations. */ | |
289 | bfd_vma text_segment_base; | |
290 | bfd_vma data_segment_base; | |
291 | ||
47d89dba AM |
292 | /* Whether we support multiple sub-spaces for shared libs. */ |
293 | unsigned int multi_subspace:1; | |
294 | ||
067fa4a6 | 295 | /* Flags set when various size branches are detected. Used to |
47d89dba AM |
296 | select suitable defaults for the stub group size. */ |
297 | unsigned int has_12bit_branch:1; | |
298 | unsigned int has_17bit_branch:1; | |
067fa4a6 | 299 | unsigned int has_22bit_branch:1; |
47d89dba AM |
300 | |
301 | /* Set if we need a .plt stub to support lazy dynamic linking. */ | |
302 | unsigned int need_plt_stub:1; | |
ec338859 | 303 | |
87d72d41 AM |
304 | /* Small local sym cache. */ |
305 | struct sym_cache sym_cache; | |
9b52905e NC |
306 | |
307 | /* Data for LDM relocations. */ | |
308 | union | |
309 | { | |
310 | bfd_signed_vma refcount; | |
311 | bfd_vma offset; | |
312 | } tls_ldm_got; | |
252b5132 RH |
313 | }; |
314 | ||
30667bf3 AM |
315 | /* Various hash macros and functions. */ |
316 | #define hppa_link_hash_table(p) \ | |
4dfe6ac6 NC |
317 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
318 | == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL) | |
252b5132 | 319 | |
875c0872 DA |
320 | #define hppa_elf_hash_entry(ent) \ |
321 | ((struct elf32_hppa_link_hash_entry *)(ent)) | |
322 | ||
323 | #define hppa_stub_hash_entry(ent) \ | |
324 | ((struct elf32_hppa_stub_hash_entry *)(ent)) | |
325 | ||
30667bf3 AM |
326 | #define hppa_stub_hash_lookup(table, string, create, copy) \ |
327 | ((struct elf32_hppa_stub_hash_entry *) \ | |
328 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
329 | ||
9b52905e NC |
330 | #define hppa_elf_local_got_tls_type(abfd) \ |
331 | ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2))) | |
332 | ||
333 | #define hh_name(hh) \ | |
334 | (hh ? hh->eh.root.root.string : "<undef>") | |
335 | ||
336 | #define eh_name(eh) \ | |
337 | (eh ? eh->root.root.string : "<undef>") | |
338 | ||
0c8d6e5c AM |
339 | /* Override the generic function because we want to mark our BFDs. */ |
340 | ||
341 | static bfd_boolean | |
342 | elf32_hppa_mkobject (bfd *abfd) | |
343 | { | |
344 | return bfd_elf_allocate_object (abfd, sizeof (struct elf_obj_tdata), | |
4dfe6ac6 | 345 | HPPA32_ELF_DATA); |
0c8d6e5c AM |
346 | } |
347 | ||
252b5132 RH |
348 | /* Assorted hash table functions. */ |
349 | ||
350 | /* Initialize an entry in the stub hash table. */ | |
351 | ||
352 | static struct bfd_hash_entry * | |
c39a58e6 AM |
353 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
354 | struct bfd_hash_table *table, | |
355 | const char *string) | |
252b5132 | 356 | { |
252b5132 RH |
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_stub_hash_entry)); | |
363 | if (entry == NULL) | |
364 | return entry; | |
30667bf3 | 365 | } |
252b5132 RH |
366 | |
367 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
368 | entry = bfd_hash_newfunc (entry, table, string); |
369 | if (entry != NULL) | |
252b5132 | 370 | { |
875c0872 | 371 | struct elf32_hppa_stub_hash_entry *hsh; |
ebe50bae | 372 | |
252b5132 | 373 | /* Initialize the local fields. */ |
875c0872 DA |
374 | hsh = hppa_stub_hash_entry (entry); |
375 | hsh->stub_sec = NULL; | |
376 | hsh->stub_offset = 0; | |
377 | hsh->target_value = 0; | |
378 | hsh->target_section = NULL; | |
379 | hsh->stub_type = hppa_stub_long_branch; | |
a63e02c7 | 380 | hsh->hh = NULL; |
875c0872 | 381 | hsh->id_sec = NULL; |
30667bf3 AM |
382 | } |
383 | ||
ebe50bae | 384 | return entry; |
30667bf3 AM |
385 | } |
386 | ||
30667bf3 AM |
387 | /* Initialize an entry in the link hash table. */ |
388 | ||
389 | static struct bfd_hash_entry * | |
c39a58e6 AM |
390 | hppa_link_hash_newfunc (struct bfd_hash_entry *entry, |
391 | struct bfd_hash_table *table, | |
392 | const char *string) | |
30667bf3 | 393 | { |
30667bf3 AM |
394 | /* Allocate the structure if it has not already been allocated by a |
395 | subclass. */ | |
ebe50bae | 396 | if (entry == NULL) |
30667bf3 | 397 | { |
ebe50bae AM |
398 | entry = bfd_hash_allocate (table, |
399 | sizeof (struct elf32_hppa_link_hash_entry)); | |
400 | if (entry == NULL) | |
401 | return entry; | |
30667bf3 AM |
402 | } |
403 | ||
404 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
405 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
406 | if (entry != NULL) | |
30667bf3 | 407 | { |
875c0872 | 408 | struct elf32_hppa_link_hash_entry *hh; |
ebe50bae | 409 | |
30667bf3 | 410 | /* Initialize the local fields. */ |
875c0872 | 411 | hh = hppa_elf_hash_entry (entry); |
a63e02c7 | 412 | hh->hsh_cache = NULL; |
875c0872 DA |
413 | hh->dyn_relocs = NULL; |
414 | hh->plabel = 0; | |
9b52905e | 415 | hh->tls_type = GOT_UNKNOWN; |
252b5132 RH |
416 | } |
417 | ||
ebe50bae | 418 | return entry; |
252b5132 RH |
419 | } |
420 | ||
252b5132 RH |
421 | /* Create the derived linker hash table. The PA ELF port uses the derived |
422 | hash table to keep information specific to the PA ELF linker (without | |
423 | using static variables). */ | |
424 | ||
425 | static struct bfd_link_hash_table * | |
c39a58e6 | 426 | elf32_hppa_link_hash_table_create (bfd *abfd) |
252b5132 | 427 | { |
875c0872 DA |
428 | struct elf32_hppa_link_hash_table *htab; |
429 | bfd_size_type amt = sizeof (*htab); | |
252b5132 | 430 | |
9b52905e | 431 | htab = bfd_malloc (amt); |
875c0872 | 432 | if (htab == NULL) |
252b5132 | 433 | return NULL; |
edd21aca | 434 | |
66eb6687 | 435 | if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc, |
4dfe6ac6 NC |
436 | sizeof (struct elf32_hppa_link_hash_entry), |
437 | HPPA32_ELF_DATA)) | |
252b5132 | 438 | { |
875c0872 | 439 | free (htab); |
252b5132 RH |
440 | return NULL; |
441 | } | |
edd21aca AM |
442 | |
443 | /* Init the stub hash table too. */ | |
66eb6687 AM |
444 | if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc, |
445 | sizeof (struct elf32_hppa_stub_hash_entry))) | |
edd21aca AM |
446 | return NULL; |
447 | ||
875c0872 DA |
448 | htab->stub_bfd = NULL; |
449 | htab->add_stub_section = NULL; | |
450 | htab->layout_sections_again = NULL; | |
451 | htab->stub_group = NULL; | |
452 | htab->sgot = NULL; | |
453 | htab->srelgot = NULL; | |
454 | htab->splt = NULL; | |
455 | htab->srelplt = NULL; | |
456 | htab->sdynbss = NULL; | |
457 | htab->srelbss = NULL; | |
458 | htab->text_segment_base = (bfd_vma) -1; | |
459 | htab->data_segment_base = (bfd_vma) -1; | |
460 | htab->multi_subspace = 0; | |
461 | htab->has_12bit_branch = 0; | |
462 | htab->has_17bit_branch = 0; | |
463 | htab->has_22bit_branch = 0; | |
464 | htab->need_plt_stub = 0; | |
87d72d41 | 465 | htab->sym_cache.abfd = NULL; |
9b52905e | 466 | htab->tls_ldm_got.refcount = 0; |
875c0872 | 467 | |
a63e02c7 | 468 | return &htab->etab.root; |
252b5132 RH |
469 | } |
470 | ||
e2d34d7d DJ |
471 | /* Free the derived linker hash table. */ |
472 | ||
473 | static void | |
875c0872 | 474 | elf32_hppa_link_hash_table_free (struct bfd_link_hash_table *btab) |
e2d34d7d | 475 | { |
875c0872 DA |
476 | struct elf32_hppa_link_hash_table *htab |
477 | = (struct elf32_hppa_link_hash_table *) btab; | |
e2d34d7d | 478 | |
a63e02c7 | 479 | bfd_hash_table_free (&htab->bstab); |
875c0872 | 480 | _bfd_generic_link_hash_table_free (btab); |
e2d34d7d DJ |
481 | } |
482 | ||
30667bf3 AM |
483 | /* Build a name for an entry in the stub hash table. */ |
484 | ||
edd21aca | 485 | static char * |
c39a58e6 AM |
486 | hppa_stub_name (const asection *input_section, |
487 | const asection *sym_sec, | |
875c0872 DA |
488 | const struct elf32_hppa_link_hash_entry *hh, |
489 | const Elf_Internal_Rela *rela) | |
edd21aca AM |
490 | { |
491 | char *stub_name; | |
dc810e39 | 492 | bfd_size_type len; |
edd21aca | 493 | |
875c0872 | 494 | if (hh) |
30667bf3 | 495 | { |
9b52905e | 496 | len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1; |
30667bf3 AM |
497 | stub_name = bfd_malloc (len); |
498 | if (stub_name != NULL) | |
9b52905e NC |
499 | sprintf (stub_name, "%08x_%s+%x", |
500 | input_section->id & 0xffffffff, | |
501 | hh_name (hh), | |
502 | (int) rela->r_addend & 0xffffffff); | |
30667bf3 AM |
503 | } |
504 | else | |
edd21aca | 505 | { |
30667bf3 AM |
506 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
507 | stub_name = bfd_malloc (len); | |
508 | if (stub_name != NULL) | |
9b52905e NC |
509 | sprintf (stub_name, "%08x_%x:%x+%x", |
510 | input_section->id & 0xffffffff, | |
511 | sym_sec->id & 0xffffffff, | |
512 | (int) ELF32_R_SYM (rela->r_info) & 0xffffffff, | |
513 | (int) rela->r_addend & 0xffffffff); | |
edd21aca AM |
514 | } |
515 | return stub_name; | |
516 | } | |
252b5132 | 517 | |
30667bf3 AM |
518 | /* Look up an entry in the stub hash. Stub entries are cached because |
519 | creating the stub name takes a bit of time. */ | |
520 | ||
521 | static struct elf32_hppa_stub_hash_entry * | |
c39a58e6 AM |
522 | hppa_get_stub_entry (const asection *input_section, |
523 | const asection *sym_sec, | |
875c0872 DA |
524 | struct elf32_hppa_link_hash_entry *hh, |
525 | const Elf_Internal_Rela *rela, | |
c39a58e6 | 526 | struct elf32_hppa_link_hash_table *htab) |
252b5132 | 527 | { |
a63e02c7 | 528 | struct elf32_hppa_stub_hash_entry *hsh_entry; |
25f72752 AM |
529 | const asection *id_sec; |
530 | ||
531 | /* If this input section is part of a group of sections sharing one | |
532 | stub section, then use the id of the first section in the group. | |
533 | Stub names need to include a section id, as there may well be | |
534 | more than one stub used to reach say, printf, and we need to | |
535 | distinguish between them. */ | |
83c81bfe | 536 | id_sec = htab->stub_group[input_section->id].link_sec; |
edd21aca | 537 | |
a63e02c7 DA |
538 | if (hh != NULL && hh->hsh_cache != NULL |
539 | && hh->hsh_cache->hh == hh | |
540 | && hh->hsh_cache->id_sec == id_sec) | |
edd21aca | 541 | { |
a63e02c7 | 542 | hsh_entry = hh->hsh_cache; |
30667bf3 AM |
543 | } |
544 | else | |
545 | { | |
30667bf3 | 546 | char *stub_name; |
edd21aca | 547 | |
875c0872 | 548 | stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela); |
30667bf3 AM |
549 | if (stub_name == NULL) |
550 | return NULL; | |
edd21aca | 551 | |
a63e02c7 | 552 | hsh_entry = hppa_stub_hash_lookup (&htab->bstab, |
b34976b6 | 553 | stub_name, FALSE, FALSE); |
875c0872 | 554 | if (hh != NULL) |
a63e02c7 | 555 | hh->hsh_cache = hsh_entry; |
30667bf3 AM |
556 | |
557 | free (stub_name); | |
edd21aca | 558 | } |
30667bf3 | 559 | |
a63e02c7 | 560 | return hsh_entry; |
30667bf3 AM |
561 | } |
562 | ||
30667bf3 AM |
563 | /* Add a new stub entry to the stub hash. Not all fields of the new |
564 | stub entry are initialised. */ | |
565 | ||
566 | static struct elf32_hppa_stub_hash_entry * | |
c39a58e6 AM |
567 | hppa_add_stub (const char *stub_name, |
568 | asection *section, | |
569 | struct elf32_hppa_link_hash_table *htab) | |
30667bf3 | 570 | { |
25f72752 | 571 | asection *link_sec; |
30667bf3 | 572 | asection *stub_sec; |
875c0872 | 573 | struct elf32_hppa_stub_hash_entry *hsh; |
edd21aca | 574 | |
83c81bfe AM |
575 | link_sec = htab->stub_group[section->id].link_sec; |
576 | stub_sec = htab->stub_group[section->id].stub_sec; | |
30667bf3 | 577 | if (stub_sec == NULL) |
edd21aca | 578 | { |
83c81bfe | 579 | stub_sec = htab->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
580 | if (stub_sec == NULL) |
581 | { | |
d4c88bbb | 582 | size_t namelen; |
dc810e39 | 583 | bfd_size_type len; |
30667bf3 AM |
584 | char *s_name; |
585 | ||
d4c88bbb AM |
586 | namelen = strlen (link_sec->name); |
587 | len = namelen + sizeof (STUB_SUFFIX); | |
83c81bfe | 588 | s_name = bfd_alloc (htab->stub_bfd, len); |
30667bf3 AM |
589 | if (s_name == NULL) |
590 | return NULL; | |
591 | ||
d4c88bbb AM |
592 | memcpy (s_name, link_sec->name, namelen); |
593 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
83c81bfe | 594 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
595 | if (stub_sec == NULL) |
596 | return NULL; | |
83c81bfe | 597 | htab->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 598 | } |
83c81bfe | 599 | htab->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 600 | } |
252b5132 | 601 | |
30667bf3 | 602 | /* Enter this entry into the linker stub hash table. */ |
a63e02c7 | 603 | hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name, |
b34976b6 | 604 | TRUE, FALSE); |
875c0872 | 605 | if (hsh == NULL) |
30667bf3 | 606 | { |
d003868e AM |
607 | (*_bfd_error_handler) (_("%B: cannot create stub entry %s"), |
608 | section->owner, | |
30667bf3 AM |
609 | stub_name); |
610 | return NULL; | |
edd21aca AM |
611 | } |
612 | ||
875c0872 DA |
613 | hsh->stub_sec = stub_sec; |
614 | hsh->stub_offset = 0; | |
615 | hsh->id_sec = link_sec; | |
616 | return hsh; | |
edd21aca AM |
617 | } |
618 | ||
30667bf3 AM |
619 | /* Determine the type of stub needed, if any, for a call. */ |
620 | ||
621 | static enum elf32_hppa_stub_type | |
c39a58e6 | 622 | hppa_type_of_stub (asection *input_sec, |
875c0872 DA |
623 | const Elf_Internal_Rela *rela, |
624 | struct elf32_hppa_link_hash_entry *hh, | |
a252afa4 DA |
625 | bfd_vma destination, |
626 | struct bfd_link_info *info) | |
edd21aca | 627 | { |
edd21aca | 628 | bfd_vma location; |
30667bf3 AM |
629 | bfd_vma branch_offset; |
630 | bfd_vma max_branch_offset; | |
631 | unsigned int r_type; | |
632 | ||
875c0872 | 633 | if (hh != NULL |
a63e02c7 DA |
634 | && hh->eh.plt.offset != (bfd_vma) -1 |
635 | && hh->eh.dynindx != -1 | |
875c0872 | 636 | && !hh->plabel |
a252afa4 | 637 | && (info->shared |
a63e02c7 DA |
638 | || !hh->eh.def_regular |
639 | || hh->eh.root.type == bfd_link_hash_defweak)) | |
30667bf3 | 640 | { |
067fa4a6 AM |
641 | /* We need an import stub. Decide between hppa_stub_import |
642 | and hppa_stub_import_shared later. */ | |
30667bf3 AM |
643 | return hppa_stub_import; |
644 | } | |
edd21aca | 645 | |
30667bf3 AM |
646 | /* Determine where the call point is. */ |
647 | location = (input_sec->output_offset | |
648 | + input_sec->output_section->vma | |
875c0872 | 649 | + rela->r_offset); |
edd21aca | 650 | |
30667bf3 | 651 | branch_offset = destination - location - 8; |
875c0872 | 652 | r_type = ELF32_R_TYPE (rela->r_info); |
edd21aca | 653 | |
30667bf3 AM |
654 | /* Determine if a long branch stub is needed. parisc branch offsets |
655 | are relative to the second instruction past the branch, ie. +8 | |
656 | bytes on from the branch instruction location. The offset is | |
657 | signed and counts in units of 4 bytes. */ | |
658 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
9b52905e NC |
659 | max_branch_offset = (1 << (17 - 1)) << 2; |
660 | ||
30667bf3 | 661 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) |
9b52905e NC |
662 | max_branch_offset = (1 << (12 - 1)) << 2; |
663 | ||
25f72752 | 664 | else /* R_PARISC_PCREL22F. */ |
9b52905e | 665 | max_branch_offset = (1 << (22 - 1)) << 2; |
edd21aca | 666 | |
30667bf3 | 667 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
668 | return hppa_stub_long_branch; |
669 | ||
30667bf3 AM |
670 | return hppa_stub_none; |
671 | } | |
edd21aca | 672 | |
30667bf3 AM |
673 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
674 | IN_ARG contains the link info pointer. */ | |
edd21aca | 675 | |
30667bf3 AM |
676 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
677 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 678 | |
30667bf3 | 679 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 680 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 681 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 682 | |
3ee1d854 AM |
683 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
684 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 685 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 686 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 687 | |
3ee1d854 AM |
688 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
689 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 690 | |
30667bf3 AM |
691 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
692 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
693 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
694 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 695 | |
067fa4a6 | 696 | #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */ |
30667bf3 AM |
697 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
698 | #define NOP 0x08000240 /* nop */ | |
699 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
700 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
701 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 702 | |
30667bf3 AM |
703 | #ifndef R19_STUBS |
704 | #define R19_STUBS 1 | |
705 | #endif | |
edd21aca | 706 | |
30667bf3 AM |
707 | #if R19_STUBS |
708 | #define LDW_R1_DLT LDW_R1_R19 | |
709 | #else | |
710 | #define LDW_R1_DLT LDW_R1_DP | |
711 | #endif | |
edd21aca | 712 | |
b34976b6 | 713 | static bfd_boolean |
875c0872 | 714 | hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg) |
30667bf3 | 715 | { |
875c0872 | 716 | struct elf32_hppa_stub_hash_entry *hsh; |
30667bf3 | 717 | struct bfd_link_info *info; |
83c81bfe | 718 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
719 | asection *stub_sec; |
720 | bfd *stub_bfd; | |
721 | bfd_byte *loc; | |
722 | bfd_vma sym_value; | |
74d1c347 | 723 | bfd_vma insn; |
8dea1268 | 724 | bfd_vma off; |
74d1c347 | 725 | int val; |
30667bf3 | 726 | int size; |
edd21aca | 727 | |
30667bf3 | 728 | /* Massage our args to the form they really have. */ |
875c0872 DA |
729 | hsh = hppa_stub_hash_entry (bh); |
730 | info = (struct bfd_link_info *)in_arg; | |
30667bf3 | 731 | |
83c81bfe | 732 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
733 | if (htab == NULL) |
734 | return FALSE; | |
735 | ||
875c0872 | 736 | stub_sec = hsh->stub_sec; |
edd21aca | 737 | |
30667bf3 | 738 | /* Make a note of the offset within the stubs for this entry. */ |
875c0872 DA |
739 | hsh->stub_offset = stub_sec->size; |
740 | loc = stub_sec->contents + hsh->stub_offset; | |
252b5132 | 741 | |
30667bf3 AM |
742 | stub_bfd = stub_sec->owner; |
743 | ||
875c0872 | 744 | switch (hsh->stub_type) |
30667bf3 AM |
745 | { |
746 | case hppa_stub_long_branch: | |
747 | /* Create the long branch. A long branch is formed with "ldil" | |
748 | loading the upper bits of the target address into a register, | |
749 | then branching with "be" which adds in the lower bits. | |
750 | The "be" has its delay slot nullified. */ | |
875c0872 DA |
751 | sym_value = (hsh->target_value |
752 | + hsh->target_section->output_offset | |
753 | + hsh->target_section->output_section->vma); | |
30667bf3 | 754 | |
c39a58e6 | 755 | val = hppa_field_adjust (sym_value, 0, e_lrsel); |
74d1c347 | 756 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); |
30667bf3 AM |
757 | bfd_put_32 (stub_bfd, insn, loc); |
758 | ||
c39a58e6 | 759 | val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2; |
74d1c347 | 760 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
761 | bfd_put_32 (stub_bfd, insn, loc + 4); |
762 | ||
30667bf3 | 763 | size = 8; |
edd21aca AM |
764 | break; |
765 | ||
30667bf3 AM |
766 | case hppa_stub_long_branch_shared: |
767 | /* Branches are relative. This is where we are going to. */ | |
875c0872 DA |
768 | sym_value = (hsh->target_value |
769 | + hsh->target_section->output_offset | |
770 | + hsh->target_section->output_section->vma); | |
30667bf3 AM |
771 | |
772 | /* And this is where we are coming from, more or less. */ | |
875c0872 | 773 | sym_value -= (hsh->stub_offset |
30667bf3 AM |
774 | + stub_sec->output_offset |
775 | + stub_sec->output_section->vma); | |
776 | ||
74d1c347 | 777 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 778 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 779 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
780 | bfd_put_32 (stub_bfd, insn, loc + 4); |
781 | ||
47d89dba | 782 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 783 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
784 | bfd_put_32 (stub_bfd, insn, loc + 8); |
785 | size = 12; | |
786 | break; | |
edd21aca | 787 | |
30667bf3 AM |
788 | case hppa_stub_import: |
789 | case hppa_stub_import_shared: | |
a63e02c7 | 790 | off = hsh->hh->eh.plt.offset; |
8dea1268 | 791 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 792 | abort (); |
8dea1268 AM |
793 | |
794 | off &= ~ (bfd_vma) 1; | |
795 | sym_value = (off | |
83c81bfe AM |
796 | + htab->splt->output_offset |
797 | + htab->splt->output_section->vma | |
798 | - elf_gp (htab->splt->output_section->owner)); | |
30667bf3 AM |
799 | |
800 | insn = ADDIL_DP; | |
801 | #if R19_STUBS | |
875c0872 | 802 | if (hsh->stub_type == hppa_stub_import_shared) |
30667bf3 AM |
803 | insn = ADDIL_R19; |
804 | #endif | |
c39a58e6 | 805 | val = hppa_field_adjust (sym_value, 0, e_lrsel), |
74d1c347 | 806 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 807 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 808 | |
47d89dba AM |
809 | /* It is critical to use lrsel/rrsel here because we are using |
810 | two different offsets (+0 and +4) from sym_value. If we use | |
811 | lsel/rsel then with unfortunate sym_values we will round | |
812 | sym_value+4 up to the next 2k block leading to a mis-match | |
813 | between the lsel and rsel value. */ | |
c39a58e6 | 814 | val = hppa_field_adjust (sym_value, 0, e_rrsel); |
74d1c347 | 815 | insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14); |
30667bf3 | 816 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 817 | |
83c81bfe | 818 | if (htab->multi_subspace) |
30667bf3 | 819 | { |
47d89dba | 820 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 821 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 822 | bfd_put_32 (stub_bfd, insn, loc + 8); |
252b5132 | 823 | |
74d1c347 AM |
824 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
825 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
826 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20); | |
827 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24); | |
252b5132 | 828 | |
30667bf3 AM |
829 | size = 28; |
830 | } | |
831 | else | |
832 | { | |
74d1c347 | 833 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8); |
47d89dba | 834 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel); |
74d1c347 | 835 | insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14); |
30667bf3 | 836 | bfd_put_32 (stub_bfd, insn, loc + 12); |
252b5132 | 837 | |
30667bf3 AM |
838 | size = 16; |
839 | } | |
252b5132 | 840 | |
30667bf3 | 841 | break; |
252b5132 | 842 | |
30667bf3 AM |
843 | case hppa_stub_export: |
844 | /* Branches are relative. This is where we are going to. */ | |
875c0872 DA |
845 | sym_value = (hsh->target_value |
846 | + hsh->target_section->output_offset | |
847 | + hsh->target_section->output_section->vma); | |
252b5132 | 848 | |
30667bf3 | 849 | /* And this is where we are coming from. */ |
875c0872 | 850 | sym_value -= (hsh->stub_offset |
30667bf3 AM |
851 | + stub_sec->output_offset |
852 | + stub_sec->output_section->vma); | |
edd21aca | 853 | |
067fa4a6 AM |
854 | if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2)) |
855 | && (!htab->has_22bit_branch | |
856 | || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2)))) | |
30667bf3 | 857 | { |
edd21aca | 858 | (*_bfd_error_handler) |
d003868e | 859 | (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
875c0872 | 860 | hsh->target_section->owner, |
d003868e | 861 | stub_sec, |
875c0872 | 862 | (long) hsh->stub_offset, |
a63e02c7 | 863 | hsh->bh_root.string); |
30667bf3 | 864 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 865 | return FALSE; |
252b5132 | 866 | } |
30667bf3 | 867 | |
74d1c347 | 868 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
067fa4a6 AM |
869 | if (!htab->has_22bit_branch) |
870 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
871 | else | |
872 | insn = hppa_rebuild_insn ((int) BL22_RP, val, 22); | |
30667bf3 AM |
873 | bfd_put_32 (stub_bfd, insn, loc); |
874 | ||
74d1c347 AM |
875 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
876 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); | |
877 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
878 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
879 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
880 | |
881 | /* Point the function symbol at the stub. */ | |
a63e02c7 DA |
882 | hsh->hh->eh.root.u.def.section = stub_sec; |
883 | hsh->hh->eh.root.u.def.value = stub_sec->size; | |
30667bf3 AM |
884 | |
885 | size = 24; | |
886 | break; | |
887 | ||
888 | default: | |
889 | BFD_FAIL (); | |
b34976b6 | 890 | return FALSE; |
252b5132 RH |
891 | } |
892 | ||
eea6121a | 893 | stub_sec->size += size; |
b34976b6 | 894 | return TRUE; |
252b5132 RH |
895 | } |
896 | ||
30667bf3 AM |
897 | #undef LDIL_R1 |
898 | #undef BE_SR4_R1 | |
899 | #undef BL_R1 | |
900 | #undef ADDIL_R1 | |
901 | #undef DEPI_R1 | |
30667bf3 AM |
902 | #undef LDW_R1_R21 |
903 | #undef LDW_R1_DLT | |
904 | #undef LDW_R1_R19 | |
905 | #undef ADDIL_R19 | |
906 | #undef LDW_R1_DP | |
907 | #undef LDSID_R21_R1 | |
908 | #undef MTSP_R1 | |
909 | #undef BE_SR0_R21 | |
910 | #undef STW_RP | |
911 | #undef BV_R0_R21 | |
912 | #undef BL_RP | |
913 | #undef NOP | |
914 | #undef LDW_RP | |
915 | #undef LDSID_RP_R1 | |
916 | #undef BE_SR0_RP | |
252b5132 | 917 | |
30667bf3 AM |
918 | /* As above, but don't actually build the stub. Just bump offset so |
919 | we know stub section sizes. */ | |
920 | ||
b34976b6 | 921 | static bfd_boolean |
875c0872 | 922 | hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg) |
252b5132 | 923 | { |
875c0872 | 924 | struct elf32_hppa_stub_hash_entry *hsh; |
83c81bfe | 925 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
926 | int size; |
927 | ||
928 | /* Massage our args to the form they really have. */ | |
875c0872 | 929 | hsh = hppa_stub_hash_entry (bh); |
c39a58e6 | 930 | htab = in_arg; |
30667bf3 | 931 | |
875c0872 | 932 | if (hsh->stub_type == hppa_stub_long_branch) |
98ceb8ce | 933 | size = 8; |
875c0872 | 934 | else if (hsh->stub_type == hppa_stub_long_branch_shared) |
30667bf3 | 935 | size = 12; |
875c0872 | 936 | else if (hsh->stub_type == hppa_stub_export) |
30667bf3 | 937 | size = 24; |
74d1c347 | 938 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 939 | { |
83c81bfe | 940 | if (htab->multi_subspace) |
30667bf3 AM |
941 | size = 28; |
942 | else | |
943 | size = 16; | |
944 | } | |
252b5132 | 945 | |
875c0872 | 946 | hsh->stub_sec->size += size; |
b34976b6 | 947 | return TRUE; |
30667bf3 | 948 | } |
252b5132 | 949 | |
30667bf3 AM |
950 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
951 | Additionally we set the default architecture and machine. */ | |
952 | ||
b34976b6 | 953 | static bfd_boolean |
c39a58e6 | 954 | elf32_hppa_object_p (bfd *abfd) |
30667bf3 | 955 | { |
24a5e751 L |
956 | Elf_Internal_Ehdr * i_ehdrp; |
957 | unsigned int flags; | |
252b5132 | 958 | |
24a5e751 L |
959 | i_ehdrp = elf_elfheader (abfd); |
960 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
961 | { | |
6c21aa76 NC |
962 | /* GCC on hppa-linux produces binaries with OSABI=Linux, |
963 | but the kernel produces corefiles with OSABI=SysV. */ | |
964 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX && | |
965 | i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ | |
b34976b6 | 966 | return FALSE; |
24a5e751 | 967 | } |
225247f0 JT |
968 | else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0) |
969 | { | |
970 | /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD, | |
971 | but the kernel produces corefiles with OSABI=SysV. */ | |
972 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD && | |
973 | i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ | |
974 | return FALSE; | |
975 | } | |
24a5e751 L |
976 | else |
977 | { | |
978 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
b34976b6 | 979 | return FALSE; |
24a5e751 L |
980 | } |
981 | ||
982 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
983 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
984 | { | |
985 | case EFA_PARISC_1_0: | |
986 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
987 | case EFA_PARISC_1_1: | |
988 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
989 | case EFA_PARISC_2_0: | |
990 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
991 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
992 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
993 | } | |
b34976b6 | 994 | return TRUE; |
252b5132 RH |
995 | } |
996 | ||
30667bf3 AM |
997 | /* Create the .plt and .got sections, and set up our hash table |
998 | short-cuts to various dynamic sections. */ | |
999 | ||
b34976b6 | 1000 | static bfd_boolean |
c39a58e6 | 1001 | elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 1002 | { |
83c81bfe | 1003 | struct elf32_hppa_link_hash_table *htab; |
875c0872 | 1004 | struct elf_link_hash_entry *eh; |
edd21aca | 1005 | |
30667bf3 | 1006 | /* Don't try to create the .plt and .got twice. */ |
83c81bfe | 1007 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1008 | if (htab == NULL) |
1009 | return FALSE; | |
83c81bfe | 1010 | if (htab->splt != NULL) |
b34976b6 | 1011 | return TRUE; |
edd21aca | 1012 | |
30667bf3 AM |
1013 | /* Call the generic code to do most of the work. */ |
1014 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
b34976b6 | 1015 | return FALSE; |
252b5132 | 1016 | |
83c81bfe AM |
1017 | htab->splt = bfd_get_section_by_name (abfd, ".plt"); |
1018 | htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt"); | |
30667bf3 | 1019 | |
83c81bfe | 1020 | htab->sgot = bfd_get_section_by_name (abfd, ".got"); |
64e77c6d | 1021 | htab->srelgot = bfd_get_section_by_name (abfd, ".rela.got"); |
edd21aca | 1022 | |
83c81bfe AM |
1023 | htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss"); |
1024 | htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss"); | |
30667bf3 | 1025 | |
b18e2ae5 AM |
1026 | /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main |
1027 | application, because __canonicalize_funcptr_for_compare needs it. */ | |
875c0872 DA |
1028 | eh = elf_hash_table (info)->hgot; |
1029 | eh->forced_local = 0; | |
1030 | eh->other = STV_DEFAULT; | |
1031 | return bfd_elf_link_record_dynamic_symbol (info, eh); | |
30667bf3 AM |
1032 | } |
1033 | ||
ebe50bae AM |
1034 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1035 | ||
51b64d56 | 1036 | static void |
fcfa13d2 | 1037 | elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info, |
875c0872 DA |
1038 | struct elf_link_hash_entry *eh_dir, |
1039 | struct elf_link_hash_entry *eh_ind) | |
ebe50bae | 1040 | { |
875c0872 | 1041 | struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind; |
ebe50bae | 1042 | |
875c0872 DA |
1043 | hh_dir = hppa_elf_hash_entry (eh_dir); |
1044 | hh_ind = hppa_elf_hash_entry (eh_ind); | |
ebe50bae | 1045 | |
875c0872 | 1046 | if (hh_ind->dyn_relocs != NULL) |
ebe50bae | 1047 | { |
875c0872 | 1048 | if (hh_dir->dyn_relocs != NULL) |
bbd7ec4a | 1049 | { |
875c0872 DA |
1050 | struct elf32_hppa_dyn_reloc_entry **hdh_pp; |
1051 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
bbd7ec4a | 1052 | |
fcfa13d2 | 1053 | /* Add reloc counts against the indirect sym to the direct sym |
bbd7ec4a | 1054 | list. Merge any entries against the same section. */ |
875c0872 | 1055 | for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; ) |
bbd7ec4a | 1056 | { |
875c0872 | 1057 | struct elf32_hppa_dyn_reloc_entry *hdh_q; |
bbd7ec4a | 1058 | |
fcfa13d2 AM |
1059 | for (hdh_q = hh_dir->dyn_relocs; |
1060 | hdh_q != NULL; | |
1061 | hdh_q = hdh_q->hdh_next) | |
875c0872 | 1062 | if (hdh_q->sec == hdh_p->sec) |
bbd7ec4a AM |
1063 | { |
1064 | #if RELATIVE_DYNRELOCS | |
875c0872 | 1065 | hdh_q->relative_count += hdh_p->relative_count; |
bbd7ec4a | 1066 | #endif |
875c0872 | 1067 | hdh_q->count += hdh_p->count; |
a63e02c7 | 1068 | *hdh_pp = hdh_p->hdh_next; |
bbd7ec4a AM |
1069 | break; |
1070 | } | |
875c0872 | 1071 | if (hdh_q == NULL) |
a63e02c7 | 1072 | hdh_pp = &hdh_p->hdh_next; |
bbd7ec4a | 1073 | } |
875c0872 | 1074 | *hdh_pp = hh_dir->dyn_relocs; |
bbd7ec4a AM |
1075 | } |
1076 | ||
875c0872 DA |
1077 | hh_dir->dyn_relocs = hh_ind->dyn_relocs; |
1078 | hh_ind->dyn_relocs = NULL; | |
ebe50bae | 1079 | } |
ebe50bae | 1080 | |
4fc8051d | 1081 | if (ELIMINATE_COPY_RELOCS |
875c0872 DA |
1082 | && eh_ind->root.type != bfd_link_hash_indirect |
1083 | && eh_dir->dynamic_adjusted) | |
f5385ebf AM |
1084 | { |
1085 | /* If called to transfer flags for a weakdef during processing | |
1086 | of elf_adjust_dynamic_symbol, don't copy non_got_ref. | |
1087 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
875c0872 DA |
1088 | eh_dir->ref_dynamic |= eh_ind->ref_dynamic; |
1089 | eh_dir->ref_regular |= eh_ind->ref_regular; | |
1090 | eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak; | |
1091 | eh_dir->needs_plt |= eh_ind->needs_plt; | |
f5385ebf | 1092 | } |
4fc8051d | 1093 | else |
9b52905e NC |
1094 | { |
1095 | if (eh_ind->root.type == bfd_link_hash_indirect | |
1096 | && eh_dir->got.refcount <= 0) | |
1097 | { | |
1098 | hh_dir->tls_type = hh_ind->tls_type; | |
1099 | hh_ind->tls_type = GOT_UNKNOWN; | |
1100 | } | |
1101 | ||
1102 | _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind); | |
1103 | } | |
1104 | } | |
1105 | ||
1106 | static int | |
1107 | elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1108 | int r_type, int is_local ATTRIBUTE_UNUSED) | |
1109 | { | |
1110 | /* For now we don't support linker optimizations. */ | |
1111 | return r_type; | |
ebe50bae AM |
1112 | } |
1113 | ||
d45b7d74 DA |
1114 | /* Return a pointer to the local GOT, PLT and TLS reference counts |
1115 | for ABFD. Returns NULL if the storage allocation fails. */ | |
1116 | ||
1117 | static bfd_signed_vma * | |
1118 | hppa32_elf_local_refcounts (bfd *abfd) | |
1119 | { | |
1120 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1121 | bfd_signed_vma *local_refcounts; | |
1122 | ||
1123 | local_refcounts = elf_local_got_refcounts (abfd); | |
1124 | if (local_refcounts == NULL) | |
1125 | { | |
1126 | bfd_size_type size; | |
1127 | ||
1128 | /* Allocate space for local GOT and PLT reference | |
1129 | counts. Done this way to save polluting elf_obj_tdata | |
1130 | with another target specific pointer. */ | |
1131 | size = symtab_hdr->sh_info; | |
1132 | size *= 2 * sizeof (bfd_signed_vma); | |
1133 | /* Add in space to store the local GOT TLS types. */ | |
1134 | size += symtab_hdr->sh_info; | |
1135 | local_refcounts = bfd_zalloc (abfd, size); | |
1136 | if (local_refcounts == NULL) | |
1137 | return NULL; | |
1138 | elf_local_got_refcounts (abfd) = local_refcounts; | |
1139 | memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN, | |
1140 | symtab_hdr->sh_info); | |
1141 | } | |
1142 | return local_refcounts; | |
1143 | } | |
1144 | ||
1145 | ||
30667bf3 | 1146 | /* Look through the relocs for a section during the first phase, and |
3ac8354b AM |
1147 | calculate needed space in the global offset table, procedure linkage |
1148 | table, and dynamic reloc sections. At this point we haven't | |
1149 | necessarily read all the input files. */ | |
252b5132 | 1150 | |
b34976b6 | 1151 | static bfd_boolean |
c39a58e6 AM |
1152 | elf32_hppa_check_relocs (bfd *abfd, |
1153 | struct bfd_link_info *info, | |
1154 | asection *sec, | |
1155 | const Elf_Internal_Rela *relocs) | |
252b5132 | 1156 | { |
30667bf3 | 1157 | Elf_Internal_Shdr *symtab_hdr; |
875c0872 DA |
1158 | struct elf_link_hash_entry **eh_syms; |
1159 | const Elf_Internal_Rela *rela; | |
1160 | const Elf_Internal_Rela *rela_end; | |
83c81bfe | 1161 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
1162 | asection *sreloc; |
1163 | asection *stubreloc; | |
9b52905e | 1164 | int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN; |
30667bf3 | 1165 | |
1049f94e | 1166 | if (info->relocatable) |
b34976b6 | 1167 | return TRUE; |
30667bf3 | 1168 | |
83c81bfe | 1169 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1170 | if (htab == NULL) |
1171 | return FALSE; | |
30667bf3 | 1172 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
875c0872 | 1173 | eh_syms = elf_sym_hashes (abfd); |
30667bf3 AM |
1174 | sreloc = NULL; |
1175 | stubreloc = NULL; | |
1176 | ||
875c0872 DA |
1177 | rela_end = relocs + sec->reloc_count; |
1178 | for (rela = relocs; rela < rela_end; rela++) | |
30667bf3 AM |
1179 | { |
1180 | enum { | |
1181 | NEED_GOT = 1, | |
1182 | NEED_PLT = 2, | |
1183 | NEED_DYNREL = 4, | |
98ceb8ce | 1184 | PLT_PLABEL = 8 |
30667bf3 | 1185 | }; |
edd21aca | 1186 | |
30667bf3 | 1187 | unsigned int r_symndx, r_type; |
875c0872 DA |
1188 | struct elf32_hppa_link_hash_entry *hh; |
1189 | int need_entry = 0; | |
252b5132 | 1190 | |
875c0872 | 1191 | r_symndx = ELF32_R_SYM (rela->r_info); |
252b5132 | 1192 | |
30667bf3 | 1193 | if (r_symndx < symtab_hdr->sh_info) |
875c0872 | 1194 | hh = NULL; |
30667bf3 | 1195 | else |
f7c5057a | 1196 | { |
875c0872 | 1197 | hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]); |
a63e02c7 DA |
1198 | while (hh->eh.root.type == bfd_link_hash_indirect |
1199 | || hh->eh.root.type == bfd_link_hash_warning) | |
1200 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
f7c5057a | 1201 | } |
252b5132 | 1202 | |
875c0872 | 1203 | r_type = ELF32_R_TYPE (rela->r_info); |
9b52905e | 1204 | r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL); |
252b5132 | 1205 | |
30667bf3 AM |
1206 | switch (r_type) |
1207 | { | |
1208 | case R_PARISC_DLTIND14F: | |
1209 | case R_PARISC_DLTIND14R: | |
1210 | case R_PARISC_DLTIND21L: | |
1211 | /* This symbol requires a global offset table entry. */ | |
1212 | need_entry = NEED_GOT; | |
30667bf3 AM |
1213 | break; |
1214 | ||
1215 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1216 | case R_PARISC_PLABEL21L: | |
1217 | case R_PARISC_PLABEL32: | |
74d1c347 | 1218 | /* If the addend is non-zero, we break badly. */ |
875c0872 | 1219 | if (rela->r_addend != 0) |
49e9d0d3 | 1220 | abort (); |
74d1c347 AM |
1221 | |
1222 | /* If we are creating a shared library, then we need to | |
1223 | create a PLT entry for all PLABELs, because PLABELs with | |
1224 | local symbols may be passed via a pointer to another | |
1225 | object. Additionally, output a dynamic relocation | |
4dc86686 | 1226 | pointing to the PLT entry. |
875c0872 | 1227 | |
4dc86686 AM |
1228 | For executables, the original 32-bit ABI allowed two |
1229 | different styles of PLABELs (function pointers): For | |
1230 | global functions, the PLABEL word points into the .plt | |
1231 | two bytes past a (function address, gp) pair, and for | |
1232 | local functions the PLABEL points directly at the | |
1233 | function. The magic +2 for the first type allows us to | |
1234 | differentiate between the two. As you can imagine, this | |
1235 | is a real pain when it comes to generating code to call | |
1236 | functions indirectly or to compare function pointers. | |
1237 | We avoid the mess by always pointing a PLABEL into the | |
1238 | .plt, even for local functions. */ | |
74d1c347 | 1239 | need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL; |
30667bf3 AM |
1240 | break; |
1241 | ||
1242 | case R_PARISC_PCREL12F: | |
83c81bfe | 1243 | htab->has_12bit_branch = 1; |
067fa4a6 AM |
1244 | goto branch_common; |
1245 | ||
30667bf3 AM |
1246 | case R_PARISC_PCREL17C: |
1247 | case R_PARISC_PCREL17F: | |
83c81bfe | 1248 | htab->has_17bit_branch = 1; |
067fa4a6 AM |
1249 | goto branch_common; |
1250 | ||
30667bf3 | 1251 | case R_PARISC_PCREL22F: |
067fa4a6 AM |
1252 | htab->has_22bit_branch = 1; |
1253 | branch_common: | |
47d89dba AM |
1254 | /* Function calls might need to go through the .plt, and |
1255 | might require long branch stubs. */ | |
875c0872 | 1256 | if (hh == NULL) |
30667bf3 AM |
1257 | { |
1258 | /* We know local syms won't need a .plt entry, and if | |
1259 | they need a long branch stub we can't guarantee that | |
1260 | we can reach the stub. So just flag an error later | |
1261 | if we're doing a shared link and find we need a long | |
1262 | branch stub. */ | |
1263 | continue; | |
1264 | } | |
1265 | else | |
1266 | { | |
1267 | /* Global symbols will need a .plt entry if they remain | |
1268 | global, and in most cases won't need a long branch | |
1269 | stub. Unfortunately, we have to cater for the case | |
1270 | where a symbol is forced local by versioning, or due | |
1271 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1272 | need_entry = NEED_PLT; |
a63e02c7 | 1273 | if (hh->eh.type == STT_PARISC_MILLI) |
98ceb8ce | 1274 | need_entry = 0; |
30667bf3 AM |
1275 | } |
1276 | break; | |
1277 | ||
36751eee | 1278 | case R_PARISC_SEGBASE: /* Used to set segment base. */ |
c46b7515 | 1279 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1280 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1281 | case R_PARISC_PCREL14R: | |
1282 | case R_PARISC_PCREL17R: /* External branches. */ | |
1283 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
36751eee | 1284 | case R_PARISC_PCREL32: |
30667bf3 AM |
1285 | /* We don't need to propagate the relocation if linking a |
1286 | shared object since these are section relative. */ | |
1287 | continue; | |
1288 | ||
1289 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1290 | case R_PARISC_DPREL14R: | |
1291 | case R_PARISC_DPREL21L: | |
1292 | if (info->shared) | |
1293 | { | |
1294 | (*_bfd_error_handler) | |
d003868e AM |
1295 | (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"), |
1296 | abfd, | |
30667bf3 AM |
1297 | elf_hppa_howto_table[r_type].name); |
1298 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1299 | return FALSE; |
30667bf3 AM |
1300 | } |
1301 | /* Fall through. */ | |
1302 | ||
1303 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1304 | case R_PARISC_DIR17R: | |
47d89dba AM |
1305 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1306 | case R_PARISC_DIR14R: | |
30667bf3 | 1307 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
c46b7515 | 1308 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1309 | /* We may want to output a dynamic relocation later. */ |
1310 | need_entry = NEED_DYNREL; | |
1311 | break; | |
1312 | ||
1313 | /* This relocation describes the C++ object vtable hierarchy. | |
1314 | Reconstruct it for later use during GC. */ | |
1315 | case R_PARISC_GNU_VTINHERIT: | |
a63e02c7 | 1316 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset)) |
b34976b6 | 1317 | return FALSE; |
30667bf3 AM |
1318 | continue; |
1319 | ||
1320 | /* This relocation describes which C++ vtable entries are actually | |
1321 | used. Record for later use during GC. */ | |
1322 | case R_PARISC_GNU_VTENTRY: | |
d17e0c6e JB |
1323 | BFD_ASSERT (hh != NULL); |
1324 | if (hh != NULL | |
1325 | && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend)) | |
b34976b6 | 1326 | return FALSE; |
30667bf3 AM |
1327 | continue; |
1328 | ||
9b52905e NC |
1329 | case R_PARISC_TLS_GD21L: |
1330 | case R_PARISC_TLS_GD14R: | |
1331 | case R_PARISC_TLS_LDM21L: | |
1332 | case R_PARISC_TLS_LDM14R: | |
1333 | need_entry = NEED_GOT; | |
1334 | break; | |
1335 | ||
1336 | case R_PARISC_TLS_IE21L: | |
1337 | case R_PARISC_TLS_IE14R: | |
1338 | if (info->shared) | |
1339 | info->flags |= DF_STATIC_TLS; | |
1340 | need_entry = NEED_GOT; | |
1341 | break; | |
1342 | ||
30667bf3 AM |
1343 | default: |
1344 | continue; | |
1345 | } | |
1346 | ||
1347 | /* Now carry out our orders. */ | |
1348 | if (need_entry & NEED_GOT) | |
1349 | { | |
9b52905e NC |
1350 | switch (r_type) |
1351 | { | |
1352 | default: | |
1353 | tls_type = GOT_NORMAL; | |
1354 | break; | |
1355 | case R_PARISC_TLS_GD21L: | |
1356 | case R_PARISC_TLS_GD14R: | |
1357 | tls_type |= GOT_TLS_GD; | |
1358 | break; | |
1359 | case R_PARISC_TLS_LDM21L: | |
1360 | case R_PARISC_TLS_LDM14R: | |
1361 | tls_type |= GOT_TLS_LDM; | |
1362 | break; | |
1363 | case R_PARISC_TLS_IE21L: | |
1364 | case R_PARISC_TLS_IE14R: | |
1365 | tls_type |= GOT_TLS_IE; | |
1366 | break; | |
1367 | } | |
1368 | ||
30667bf3 | 1369 | /* Allocate space for a GOT entry, as well as a dynamic |
25f72752 | 1370 | relocation for this entry. */ |
83c81bfe | 1371 | if (htab->sgot == NULL) |
30667bf3 | 1372 | { |
a63e02c7 DA |
1373 | if (htab->etab.dynobj == NULL) |
1374 | htab->etab.dynobj = abfd; | |
1375 | if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info)) | |
b34976b6 | 1376 | return FALSE; |
30667bf3 AM |
1377 | } |
1378 | ||
9b52905e NC |
1379 | if (r_type == R_PARISC_TLS_LDM21L |
1380 | || r_type == R_PARISC_TLS_LDM14R) | |
4dfe6ac6 | 1381 | htab->tls_ldm_got.refcount += 1; |
30667bf3 AM |
1382 | else |
1383 | { | |
9b52905e NC |
1384 | if (hh != NULL) |
1385 | { | |
1386 | hh->eh.got.refcount += 1; | |
1387 | old_tls_type = hh->tls_type; | |
1388 | } | |
1389 | else | |
1390 | { | |
1391 | bfd_signed_vma *local_got_refcounts; | |
1392 | ||
1393 | /* This is a global offset table entry for a local symbol. */ | |
d45b7d74 | 1394 | local_got_refcounts = hppa32_elf_local_refcounts (abfd); |
9b52905e | 1395 | if (local_got_refcounts == NULL) |
d45b7d74 | 1396 | return FALSE; |
9b52905e NC |
1397 | local_got_refcounts[r_symndx] += 1; |
1398 | ||
1399 | old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx]; | |
1400 | } | |
1401 | ||
1402 | tls_type |= old_tls_type; | |
1403 | ||
1404 | if (old_tls_type != tls_type) | |
1405 | { | |
1406 | if (hh != NULL) | |
1407 | hh->tls_type = tls_type; | |
1408 | else | |
1409 | hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type; | |
1410 | } | |
1411 | ||
30667bf3 AM |
1412 | } |
1413 | } | |
1414 | ||
1415 | if (need_entry & NEED_PLT) | |
1416 | { | |
1417 | /* If we are creating a shared library, and this is a reloc | |
1418 | against a weak symbol or a global symbol in a dynamic | |
1419 | object, then we will be creating an import stub and a | |
1420 | .plt entry for the symbol. Similarly, on a normal link | |
1421 | to symbols defined in a dynamic object we'll need the | |
1422 | import stub and a .plt entry. We don't know yet whether | |
1423 | the symbol is defined or not, so make an entry anyway and | |
1424 | clean up later in adjust_dynamic_symbol. */ | |
1425 | if ((sec->flags & SEC_ALLOC) != 0) | |
1426 | { | |
875c0872 | 1427 | if (hh != NULL) |
30667bf3 | 1428 | { |
a63e02c7 DA |
1429 | hh->eh.needs_plt = 1; |
1430 | hh->eh.plt.refcount += 1; | |
74d1c347 | 1431 | |
36605136 AM |
1432 | /* If this .plt entry is for a plabel, mark it so |
1433 | that adjust_dynamic_symbol will keep the entry | |
1434 | even if it appears to be local. */ | |
74d1c347 | 1435 | if (need_entry & PLT_PLABEL) |
875c0872 | 1436 | hh->plabel = 1; |
74d1c347 AM |
1437 | } |
1438 | else if (need_entry & PLT_PLABEL) | |
1439 | { | |
3ac8354b | 1440 | bfd_signed_vma *local_got_refcounts; |
68fb2e56 | 1441 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 | 1442 | |
d45b7d74 | 1443 | local_got_refcounts = hppa32_elf_local_refcounts (abfd); |
74d1c347 | 1444 | if (local_got_refcounts == NULL) |
d45b7d74 | 1445 | return FALSE; |
68fb2e56 AM |
1446 | local_plt_refcounts = (local_got_refcounts |
1447 | + symtab_hdr->sh_info); | |
ebe50bae | 1448 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1449 | } |
30667bf3 AM |
1450 | } |
1451 | } | |
1452 | ||
98ceb8ce | 1453 | if (need_entry & NEED_DYNREL) |
30667bf3 AM |
1454 | { |
1455 | /* Flag this symbol as having a non-got, non-plt reference | |
1456 | so that we generate copy relocs if it turns out to be | |
1457 | dynamic. */ | |
875c0872 | 1458 | if (hh != NULL && !info->shared) |
a63e02c7 | 1459 | hh->eh.non_got_ref = 1; |
30667bf3 AM |
1460 | |
1461 | /* If we are creating a shared library then we need to copy | |
1462 | the reloc into the shared library. However, if we are | |
1463 | linking with -Bsymbolic, we need only copy absolute | |
1464 | relocs or relocs against symbols that are not defined in | |
1465 | an object we are including in the link. PC- or DP- or | |
1466 | DLT-relative relocs against any local sym or global sym | |
1467 | with DEF_REGULAR set, can be discarded. At this point we | |
1468 | have not seen all the input files, so it is possible that | |
1469 | DEF_REGULAR is not set now but will be set later (it is | |
1470 | never cleared). We account for that possibility below by | |
98ceb8ce | 1471 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1472 | hash table entry. |
1473 | ||
1474 | A similar situation to the -Bsymbolic case occurs when | |
1475 | creating shared libraries and symbol visibility changes | |
1476 | render the symbol local. | |
1477 | ||
1478 | As it turns out, all the relocs we will be creating here | |
1479 | are absolute, so we cannot remove them on -Bsymbolic | |
1480 | links or visibility changes anyway. A STUB_REL reloc | |
1481 | is absolute too, as in that case it is the reloc in the | |
1482 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1483 | reloc in the branch. |
1484 | ||
1485 | If on the other hand, we are creating an executable, we | |
1486 | may need to keep relocations for symbols satisfied by a | |
1487 | dynamic library if we manage to avoid copy relocs for the | |
1488 | symbol. */ | |
446f2863 AM |
1489 | if ((info->shared |
1490 | && (sec->flags & SEC_ALLOC) != 0 | |
1491 | && (IS_ABSOLUTE_RELOC (r_type) | |
875c0872 | 1492 | || (hh != NULL |
446f2863 | 1493 | && (!info->symbolic |
a63e02c7 DA |
1494 | || hh->eh.root.type == bfd_link_hash_defweak |
1495 | || !hh->eh.def_regular)))) | |
4fc8051d AM |
1496 | || (ELIMINATE_COPY_RELOCS |
1497 | && !info->shared | |
446f2863 | 1498 | && (sec->flags & SEC_ALLOC) != 0 |
875c0872 | 1499 | && hh != NULL |
a63e02c7 DA |
1500 | && (hh->eh.root.type == bfd_link_hash_defweak |
1501 | || !hh->eh.def_regular))) | |
30667bf3 | 1502 | { |
875c0872 DA |
1503 | struct elf32_hppa_dyn_reloc_entry *hdh_p; |
1504 | struct elf32_hppa_dyn_reloc_entry **hdh_head; | |
ec338859 | 1505 | |
30667bf3 AM |
1506 | /* Create a reloc section in dynobj and make room for |
1507 | this reloc. */ | |
98ceb8ce | 1508 | if (sreloc == NULL) |
30667bf3 | 1509 | { |
a63e02c7 DA |
1510 | if (htab->etab.dynobj == NULL) |
1511 | htab->etab.dynobj = abfd; | |
3ac8354b | 1512 | |
83bac4b0 NC |
1513 | sreloc = _bfd_elf_make_dynamic_reloc_section |
1514 | (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE); | |
1515 | ||
98ceb8ce | 1516 | if (sreloc == NULL) |
30667bf3 | 1517 | { |
83bac4b0 NC |
1518 | bfd_set_error (bfd_error_bad_value); |
1519 | return FALSE; | |
30667bf3 | 1520 | } |
30667bf3 AM |
1521 | } |
1522 | ||
98ceb8ce AM |
1523 | /* If this is a global symbol, we count the number of |
1524 | relocations we need for this symbol. */ | |
875c0872 | 1525 | if (hh != NULL) |
30667bf3 | 1526 | { |
875c0872 | 1527 | hdh_head = &hh->dyn_relocs; |
ec338859 AM |
1528 | } |
1529 | else | |
1530 | { | |
1531 | /* Track dynamic relocs needed for local syms too. | |
1532 | We really need local syms available to do this | |
1533 | easily. Oh well. */ | |
875c0872 | 1534 | asection *sr; |
6edfbbad | 1535 | void *vpp; |
87d72d41 | 1536 | Elf_Internal_Sym *isym; |
6edfbbad | 1537 | |
87d72d41 AM |
1538 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
1539 | abfd, r_symndx); | |
1540 | if (isym == NULL) | |
b34976b6 | 1541 | return FALSE; |
30667bf3 | 1542 | |
87d72d41 AM |
1543 | sr = bfd_section_from_elf_index (abfd, isym->st_shndx); |
1544 | if (sr == NULL) | |
1545 | sr = sec; | |
1546 | ||
6edfbbad DJ |
1547 | vpp = &elf_section_data (sr)->local_dynrel; |
1548 | hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp; | |
ec338859 AM |
1549 | } |
1550 | ||
875c0872 DA |
1551 | hdh_p = *hdh_head; |
1552 | if (hdh_p == NULL || hdh_p->sec != sec) | |
ec338859 | 1553 | { |
a63e02c7 | 1554 | hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p); |
875c0872 | 1555 | if (hdh_p == NULL) |
b34976b6 | 1556 | return FALSE; |
a63e02c7 | 1557 | hdh_p->hdh_next = *hdh_head; |
875c0872 DA |
1558 | *hdh_head = hdh_p; |
1559 | hdh_p->sec = sec; | |
1560 | hdh_p->count = 0; | |
98ceb8ce | 1561 | #if RELATIVE_DYNRELOCS |
875c0872 | 1562 | hdh_p->relative_count = 0; |
98ceb8ce | 1563 | #endif |
ec338859 | 1564 | } |
98ceb8ce | 1565 | |
875c0872 | 1566 | hdh_p->count += 1; |
98ceb8ce | 1567 | #if RELATIVE_DYNRELOCS |
ec338859 | 1568 | if (!IS_ABSOLUTE_RELOC (rtype)) |
875c0872 | 1569 | hdh_p->relative_count += 1; |
98ceb8ce | 1570 | #endif |
30667bf3 AM |
1571 | } |
1572 | } | |
1573 | } | |
edd21aca | 1574 | |
b34976b6 | 1575 | return TRUE; |
edd21aca AM |
1576 | } |
1577 | ||
30667bf3 AM |
1578 | /* Return the section that should be marked against garbage collection |
1579 | for a given relocation. */ | |
1580 | ||
1581 | static asection * | |
c39a58e6 | 1582 | elf32_hppa_gc_mark_hook (asection *sec, |
07adf181 | 1583 | struct bfd_link_info *info, |
875c0872 DA |
1584 | Elf_Internal_Rela *rela, |
1585 | struct elf_link_hash_entry *hh, | |
c39a58e6 | 1586 | Elf_Internal_Sym *sym) |
30667bf3 | 1587 | { |
875c0872 | 1588 | if (hh != NULL) |
07adf181 AM |
1589 | switch ((unsigned int) ELF32_R_TYPE (rela->r_info)) |
1590 | { | |
1591 | case R_PARISC_GNU_VTINHERIT: | |
1592 | case R_PARISC_GNU_VTENTRY: | |
1593 | return NULL; | |
1594 | } | |
30667bf3 | 1595 | |
07adf181 | 1596 | return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym); |
30667bf3 AM |
1597 | } |
1598 | ||
30667bf3 AM |
1599 | /* Update the got and plt entry reference counts for the section being |
1600 | removed. */ | |
edd21aca | 1601 | |
b34976b6 | 1602 | static bfd_boolean |
c39a58e6 AM |
1603 | elf32_hppa_gc_sweep_hook (bfd *abfd, |
1604 | struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1605 | asection *sec, | |
1606 | const Elf_Internal_Rela *relocs) | |
edd21aca | 1607 | { |
30667bf3 | 1608 | Elf_Internal_Shdr *symtab_hdr; |
875c0872 | 1609 | struct elf_link_hash_entry **eh_syms; |
30667bf3 | 1610 | bfd_signed_vma *local_got_refcounts; |
74d1c347 | 1611 | bfd_signed_vma *local_plt_refcounts; |
875c0872 | 1612 | const Elf_Internal_Rela *rela, *relend; |
4dfe6ac6 | 1613 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 1614 | |
7dda2462 TG |
1615 | if (info->relocatable) |
1616 | return TRUE; | |
1617 | ||
4dfe6ac6 NC |
1618 | htab = hppa_link_hash_table (info); |
1619 | if (htab == NULL) | |
1620 | return FALSE; | |
1621 | ||
ec338859 | 1622 | elf_section_data (sec)->local_dynrel = NULL; |
98ceb8ce | 1623 | |
30667bf3 | 1624 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
875c0872 | 1625 | eh_syms = elf_sym_hashes (abfd); |
30667bf3 | 1626 | local_got_refcounts = elf_local_got_refcounts (abfd); |
74d1c347 AM |
1627 | local_plt_refcounts = local_got_refcounts; |
1628 | if (local_plt_refcounts != NULL) | |
1629 | local_plt_refcounts += symtab_hdr->sh_info; | |
30667bf3 | 1630 | |
30667bf3 | 1631 | relend = relocs + sec->reloc_count; |
875c0872 | 1632 | for (rela = relocs; rela < relend; rela++) |
26e41594 AM |
1633 | { |
1634 | unsigned long r_symndx; | |
1635 | unsigned int r_type; | |
875c0872 | 1636 | struct elf_link_hash_entry *eh = NULL; |
26e41594 | 1637 | |
875c0872 | 1638 | r_symndx = ELF32_R_SYM (rela->r_info); |
26e41594 AM |
1639 | if (r_symndx >= symtab_hdr->sh_info) |
1640 | { | |
875c0872 DA |
1641 | struct elf32_hppa_link_hash_entry *hh; |
1642 | struct elf32_hppa_dyn_reloc_entry **hdh_pp; | |
1643 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
26e41594 | 1644 | |
875c0872 DA |
1645 | eh = eh_syms[r_symndx - symtab_hdr->sh_info]; |
1646 | while (eh->root.type == bfd_link_hash_indirect | |
1647 | || eh->root.type == bfd_link_hash_warning) | |
1648 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
1649 | hh = hppa_elf_hash_entry (eh); | |
26e41594 | 1650 | |
a63e02c7 | 1651 | for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next) |
875c0872 | 1652 | if (hdh_p->sec == sec) |
26e41594 AM |
1653 | { |
1654 | /* Everything must go for SEC. */ | |
a63e02c7 | 1655 | *hdh_pp = hdh_p->hdh_next; |
26e41594 AM |
1656 | break; |
1657 | } | |
1658 | } | |
1659 | ||
875c0872 | 1660 | r_type = ELF32_R_TYPE (rela->r_info); |
9b52905e NC |
1661 | r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL); |
1662 | ||
26e41594 AM |
1663 | switch (r_type) |
1664 | { | |
1665 | case R_PARISC_DLTIND14F: | |
1666 | case R_PARISC_DLTIND14R: | |
1667 | case R_PARISC_DLTIND21L: | |
9b52905e NC |
1668 | case R_PARISC_TLS_GD21L: |
1669 | case R_PARISC_TLS_GD14R: | |
1670 | case R_PARISC_TLS_IE21L: | |
1671 | case R_PARISC_TLS_IE14R: | |
875c0872 | 1672 | if (eh != NULL) |
26e41594 | 1673 | { |
875c0872 DA |
1674 | if (eh->got.refcount > 0) |
1675 | eh->got.refcount -= 1; | |
26e41594 AM |
1676 | } |
1677 | else if (local_got_refcounts != NULL) | |
1678 | { | |
1679 | if (local_got_refcounts[r_symndx] > 0) | |
1680 | local_got_refcounts[r_symndx] -= 1; | |
1681 | } | |
1682 | break; | |
98ceb8ce | 1683 | |
9b52905e NC |
1684 | case R_PARISC_TLS_LDM21L: |
1685 | case R_PARISC_TLS_LDM14R: | |
4dfe6ac6 | 1686 | htab->tls_ldm_got.refcount -= 1; |
9b52905e NC |
1687 | break; |
1688 | ||
26e41594 AM |
1689 | case R_PARISC_PCREL12F: |
1690 | case R_PARISC_PCREL17C: | |
1691 | case R_PARISC_PCREL17F: | |
1692 | case R_PARISC_PCREL22F: | |
875c0872 | 1693 | if (eh != NULL) |
26e41594 | 1694 | { |
875c0872 DA |
1695 | if (eh->plt.refcount > 0) |
1696 | eh->plt.refcount -= 1; | |
26e41594 AM |
1697 | } |
1698 | break; | |
1699 | ||
1700 | case R_PARISC_PLABEL14R: | |
1701 | case R_PARISC_PLABEL21L: | |
1702 | case R_PARISC_PLABEL32: | |
875c0872 | 1703 | if (eh != NULL) |
26e41594 | 1704 | { |
875c0872 DA |
1705 | if (eh->plt.refcount > 0) |
1706 | eh->plt.refcount -= 1; | |
26e41594 AM |
1707 | } |
1708 | else if (local_plt_refcounts != NULL) | |
1709 | { | |
1710 | if (local_plt_refcounts[r_symndx] > 0) | |
1711 | local_plt_refcounts[r_symndx] -= 1; | |
1712 | } | |
1713 | break; | |
1714 | ||
1715 | default: | |
1716 | break; | |
1717 | } | |
1718 | } | |
252b5132 | 1719 | |
b34976b6 | 1720 | return TRUE; |
252b5132 RH |
1721 | } |
1722 | ||
edfc032f AM |
1723 | /* Support for core dump NOTE sections. */ |
1724 | ||
1725 | static bfd_boolean | |
1726 | elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
1727 | { | |
1728 | int offset; | |
1729 | size_t size; | |
1730 | ||
1731 | switch (note->descsz) | |
1732 | { | |
1733 | default: | |
1734 | return FALSE; | |
1735 | ||
1736 | case 396: /* Linux/hppa */ | |
1737 | /* pr_cursig */ | |
1738 | elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12); | |
1739 | ||
1740 | /* pr_pid */ | |
1741 | elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24); | |
1742 | ||
1743 | /* pr_reg */ | |
1744 | offset = 72; | |
1745 | size = 320; | |
1746 | ||
1747 | break; | |
1748 | } | |
1749 | ||
1750 | /* Make a ".reg/999" section. */ | |
1751 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
1752 | size, note->descpos + offset); | |
1753 | } | |
1754 | ||
1755 | static bfd_boolean | |
1756 | elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
1757 | { | |
1758 | switch (note->descsz) | |
1759 | { | |
1760 | default: | |
1761 | return FALSE; | |
1762 | ||
1763 | case 124: /* Linux/hppa elf_prpsinfo. */ | |
1764 | elf_tdata (abfd)->core_program | |
1765 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); | |
1766 | elf_tdata (abfd)->core_command | |
1767 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); | |
1768 | } | |
1769 | ||
1770 | /* Note that for some reason, a spurious space is tacked | |
1771 | onto the end of the args in some (at least one anyway) | |
1772 | implementations, so strip it off if it exists. */ | |
1773 | { | |
1774 | char *command = elf_tdata (abfd)->core_command; | |
1775 | int n = strlen (command); | |
1776 | ||
1777 | if (0 < n && command[n - 1] == ' ') | |
1778 | command[n - 1] = '\0'; | |
1779 | } | |
1780 | ||
1781 | return TRUE; | |
1782 | } | |
1783 | ||
74d1c347 AM |
1784 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1785 | plabels. */ | |
1786 | ||
1787 | static void | |
c39a58e6 | 1788 | elf32_hppa_hide_symbol (struct bfd_link_info *info, |
875c0872 | 1789 | struct elf_link_hash_entry *eh, |
c39a58e6 | 1790 | bfd_boolean force_local) |
74d1c347 | 1791 | { |
e5094212 AM |
1792 | if (force_local) |
1793 | { | |
875c0872 DA |
1794 | eh->forced_local = 1; |
1795 | if (eh->dynindx != -1) | |
e5094212 | 1796 | { |
875c0872 | 1797 | eh->dynindx = -1; |
e5094212 | 1798 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, |
875c0872 | 1799 | eh->dynstr_index); |
e5094212 AM |
1800 | } |
1801 | } | |
1802 | ||
9b52905e | 1803 | if (! hppa_elf_hash_entry (eh)->plabel) |
74d1c347 | 1804 | { |
875c0872 DA |
1805 | eh->needs_plt = 0; |
1806 | eh->plt = elf_hash_table (info)->init_plt_refcount; | |
74d1c347 AM |
1807 | } |
1808 | } | |
1809 | ||
30667bf3 AM |
1810 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1811 | regular object. The current definition is in some section of the | |
1812 | dynamic object, but we're not including those sections. We have to | |
1813 | change the definition to something the rest of the link can | |
1814 | understand. */ | |
252b5132 | 1815 | |
b34976b6 | 1816 | static bfd_boolean |
c39a58e6 | 1817 | elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info, |
875c0872 | 1818 | struct elf_link_hash_entry *eh) |
252b5132 | 1819 | { |
83c81bfe | 1820 | struct elf32_hppa_link_hash_table *htab; |
875c0872 | 1821 | asection *sec; |
30667bf3 AM |
1822 | |
1823 | /* If this is a function, put it in the procedure linkage table. We | |
067fa4a6 | 1824 | will fill in the contents of the procedure linkage table later. */ |
875c0872 DA |
1825 | if (eh->type == STT_FUNC |
1826 | || eh->needs_plt) | |
30667bf3 | 1827 | { |
875c0872 DA |
1828 | if (eh->plt.refcount <= 0 |
1829 | || (eh->def_regular | |
1830 | && eh->root.type != bfd_link_hash_defweak | |
1831 | && ! hppa_elf_hash_entry (eh)->plabel | |
30667bf3 AM |
1832 | && (!info->shared || info->symbolic))) |
1833 | { | |
1834 | /* The .plt entry is not needed when: | |
1835 | a) Garbage collection has removed all references to the | |
1836 | symbol, or | |
1837 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1838 | object, and it's not a weak definition, nor is the symbol |
1839 | used by a plabel relocation. Either this object is the | |
1840 | application or we are doing a shared symbolic link. */ | |
1841 | ||
875c0872 DA |
1842 | eh->plt.offset = (bfd_vma) -1; |
1843 | eh->needs_plt = 0; | |
30667bf3 | 1844 | } |
4dc86686 | 1845 | |
b34976b6 | 1846 | return TRUE; |
30667bf3 | 1847 | } |
bbd7ec4a | 1848 | else |
875c0872 | 1849 | eh->plt.offset = (bfd_vma) -1; |
edd21aca | 1850 | |
30667bf3 AM |
1851 | /* If this is a weak symbol, and there is a real definition, the |
1852 | processor independent code will have arranged for us to see the | |
1853 | real definition first, and we can just use the same value. */ | |
875c0872 | 1854 | if (eh->u.weakdef != NULL) |
edd21aca | 1855 | { |
875c0872 DA |
1856 | if (eh->u.weakdef->root.type != bfd_link_hash_defined |
1857 | && eh->u.weakdef->root.type != bfd_link_hash_defweak) | |
49e9d0d3 | 1858 | abort (); |
875c0872 DA |
1859 | eh->root.u.def.section = eh->u.weakdef->root.u.def.section; |
1860 | eh->root.u.def.value = eh->u.weakdef->root.u.def.value; | |
4fc8051d | 1861 | if (ELIMINATE_COPY_RELOCS) |
875c0872 | 1862 | eh->non_got_ref = eh->u.weakdef->non_got_ref; |
b34976b6 | 1863 | return TRUE; |
30667bf3 | 1864 | } |
edd21aca | 1865 | |
30667bf3 AM |
1866 | /* This is a reference to a symbol defined by a dynamic object which |
1867 | is not a function. */ | |
1868 | ||
1869 | /* If we are creating a shared library, we must presume that the | |
1870 | only references to the symbol are via the global offset table. | |
1871 | For such cases we need not do anything here; the relocations will | |
1872 | be handled correctly by relocate_section. */ | |
1873 | if (info->shared) | |
b34976b6 | 1874 | return TRUE; |
30667bf3 AM |
1875 | |
1876 | /* If there are no references to this symbol that do not use the | |
1877 | GOT, we don't need to generate a copy reloc. */ | |
875c0872 | 1878 | if (!eh->non_got_ref) |
b34976b6 | 1879 | return TRUE; |
30667bf3 | 1880 | |
4fc8051d | 1881 | if (ELIMINATE_COPY_RELOCS) |
ebe50bae | 1882 | { |
875c0872 DA |
1883 | struct elf32_hppa_link_hash_entry *hh; |
1884 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
ebe50bae | 1885 | |
875c0872 | 1886 | hh = hppa_elf_hash_entry (eh); |
a63e02c7 | 1887 | for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next) |
4fc8051d | 1888 | { |
875c0872 DA |
1889 | sec = hdh_p->sec->output_section; |
1890 | if (sec != NULL && (sec->flags & SEC_READONLY) != 0) | |
4fc8051d AM |
1891 | break; |
1892 | } | |
1893 | ||
1894 | /* If we didn't find any dynamic relocs in read-only sections, then | |
1895 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
875c0872 | 1896 | if (hdh_p == NULL) |
4fc8051d | 1897 | { |
875c0872 | 1898 | eh->non_got_ref = 0; |
4fc8051d AM |
1899 | return TRUE; |
1900 | } | |
ebe50bae AM |
1901 | } |
1902 | ||
909272ee AM |
1903 | if (eh->size == 0) |
1904 | { | |
1905 | (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"), | |
1906 | eh->root.root.string); | |
1907 | return TRUE; | |
1908 | } | |
1909 | ||
30667bf3 AM |
1910 | /* We must allocate the symbol in our .dynbss section, which will |
1911 | become part of the .bss section of the executable. There will be | |
1912 | an entry for this symbol in the .dynsym section. The dynamic | |
1913 | object will contain position independent code, so all references | |
1914 | from the dynamic object to this symbol will go through the global | |
1915 | offset table. The dynamic linker will use the .dynsym entry to | |
1916 | determine the address it must put in the global offset table, so | |
1917 | both the dynamic object and the regular object will refer to the | |
1918 | same memory location for the variable. */ | |
1919 | ||
3ac8354b | 1920 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1921 | if (htab == NULL) |
1922 | return FALSE; | |
30667bf3 AM |
1923 | |
1924 | /* We must generate a COPY reloc to tell the dynamic linker to | |
1925 | copy the initial value out of the dynamic object and into the | |
3ac8354b | 1926 | runtime process image. */ |
875c0872 | 1927 | if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0) |
30667bf3 | 1928 | { |
eea6121a | 1929 | htab->srelbss->size += sizeof (Elf32_External_Rela); |
875c0872 | 1930 | eh->needs_copy = 1; |
edd21aca | 1931 | } |
252b5132 | 1932 | |
875c0872 | 1933 | sec = htab->sdynbss; |
edd21aca | 1934 | |
027297b7 | 1935 | return _bfd_elf_adjust_dynamic_copy (eh, sec); |
252b5132 RH |
1936 | } |
1937 | ||
e5ee5df1 | 1938 | /* Allocate space in the .plt for entries that won't have relocations. |
a252afa4 | 1939 | ie. plabel entries. */ |
a8d02d66 | 1940 | |
b34976b6 | 1941 | static bfd_boolean |
875c0872 | 1942 | allocate_plt_static (struct elf_link_hash_entry *eh, void *inf) |
a8d02d66 AM |
1943 | { |
1944 | struct bfd_link_info *info; | |
1945 | struct elf32_hppa_link_hash_table *htab; | |
875c0872 DA |
1946 | struct elf32_hppa_link_hash_entry *hh; |
1947 | asection *sec; | |
a8d02d66 | 1948 | |
875c0872 | 1949 | if (eh->root.type == bfd_link_hash_indirect) |
b34976b6 | 1950 | return TRUE; |
a8d02d66 | 1951 | |
875c0872 DA |
1952 | if (eh->root.type == bfd_link_hash_warning) |
1953 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
e92d460e | 1954 | |
875c0872 | 1955 | info = (struct bfd_link_info *) inf; |
9b52905e | 1956 | hh = hppa_elf_hash_entry (eh); |
a8d02d66 | 1957 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1958 | if (htab == NULL) |
1959 | return FALSE; | |
1960 | ||
a63e02c7 | 1961 | if (htab->etab.dynamic_sections_created |
875c0872 | 1962 | && eh->plt.refcount > 0) |
e5ee5df1 AM |
1963 | { |
1964 | /* Make sure this symbol is output as a dynamic symbol. | |
1965 | Undefined weak syms won't yet be marked as dynamic. */ | |
875c0872 DA |
1966 | if (eh->dynindx == -1 |
1967 | && !eh->forced_local | |
1968 | && eh->type != STT_PARISC_MILLI) | |
a8d02d66 | 1969 | { |
875c0872 | 1970 | if (! bfd_elf_link_record_dynamic_symbol (info, eh)) |
b34976b6 | 1971 | return FALSE; |
e5ee5df1 AM |
1972 | } |
1973 | ||
875c0872 | 1974 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh)) |
e5ee5df1 | 1975 | { |
067fa4a6 AM |
1976 | /* Allocate these later. From this point on, h->plabel |
1977 | means that the plt entry is only used by a plabel. | |
1978 | We'll be using a normal plt entry for this symbol, so | |
1979 | clear the plabel indicator. */ | |
875c0872 DA |
1980 | |
1981 | hh->plabel = 0; | |
e5ee5df1 | 1982 | } |
875c0872 | 1983 | else if (hh->plabel) |
e5ee5df1 AM |
1984 | { |
1985 | /* Make an entry in the .plt section for plabel references | |
1986 | that won't have a .plt entry for other reasons. */ | |
875c0872 DA |
1987 | sec = htab->splt; |
1988 | eh->plt.offset = sec->size; | |
1989 | sec->size += PLT_ENTRY_SIZE; | |
a8d02d66 AM |
1990 | } |
1991 | else | |
e5ee5df1 AM |
1992 | { |
1993 | /* No .plt entry needed. */ | |
875c0872 DA |
1994 | eh->plt.offset = (bfd_vma) -1; |
1995 | eh->needs_plt = 0; | |
e5ee5df1 AM |
1996 | } |
1997 | } | |
1998 | else | |
1999 | { | |
875c0872 DA |
2000 | eh->plt.offset = (bfd_vma) -1; |
2001 | eh->needs_plt = 0; | |
a8d02d66 AM |
2002 | } |
2003 | ||
b34976b6 | 2004 | return TRUE; |
a8d02d66 AM |
2005 | } |
2006 | ||
4dc86686 AM |
2007 | /* Allocate space in .plt, .got and associated reloc sections for |
2008 | global syms. */ | |
2009 | ||
b34976b6 | 2010 | static bfd_boolean |
875c0872 | 2011 | allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf) |
4dc86686 AM |
2012 | { |
2013 | struct bfd_link_info *info; | |
83c81bfe | 2014 | struct elf32_hppa_link_hash_table *htab; |
875c0872 DA |
2015 | asection *sec; |
2016 | struct elf32_hppa_link_hash_entry *hh; | |
2017 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
4dc86686 | 2018 | |
875c0872 | 2019 | if (eh->root.type == bfd_link_hash_indirect) |
b34976b6 | 2020 | return TRUE; |
73a74a62 | 2021 | |
875c0872 DA |
2022 | if (eh->root.type == bfd_link_hash_warning) |
2023 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
e92d460e | 2024 | |
c39a58e6 | 2025 | info = inf; |
83c81bfe | 2026 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2027 | if (htab == NULL) |
2028 | return FALSE; | |
2029 | ||
875c0872 DA |
2030 | hh = hppa_elf_hash_entry (eh); |
2031 | ||
a63e02c7 | 2032 | if (htab->etab.dynamic_sections_created |
875c0872 DA |
2033 | && eh->plt.offset != (bfd_vma) -1 |
2034 | && !hh->plabel | |
2035 | && eh->plt.refcount > 0) | |
4dc86686 | 2036 | { |
e5ee5df1 | 2037 | /* Make an entry in the .plt section. */ |
875c0872 DA |
2038 | sec = htab->splt; |
2039 | eh->plt.offset = sec->size; | |
2040 | sec->size += PLT_ENTRY_SIZE; | |
3ac8354b | 2041 | |
e5ee5df1 | 2042 | /* We also need to make an entry in the .rela.plt section. */ |
eea6121a | 2043 | htab->srelplt->size += sizeof (Elf32_External_Rela); |
e5ee5df1 | 2044 | htab->need_plt_stub = 1; |
4dc86686 | 2045 | } |
edd21aca | 2046 | |
875c0872 | 2047 | if (eh->got.refcount > 0) |
4dc86686 | 2048 | { |
446f2863 AM |
2049 | /* Make sure this symbol is output as a dynamic symbol. |
2050 | Undefined weak syms won't yet be marked as dynamic. */ | |
875c0872 DA |
2051 | if (eh->dynindx == -1 |
2052 | && !eh->forced_local | |
2053 | && eh->type != STT_PARISC_MILLI) | |
446f2863 | 2054 | { |
875c0872 | 2055 | if (! bfd_elf_link_record_dynamic_symbol (info, eh)) |
b34976b6 | 2056 | return FALSE; |
446f2863 AM |
2057 | } |
2058 | ||
875c0872 DA |
2059 | sec = htab->sgot; |
2060 | eh->got.offset = sec->size; | |
2061 | sec->size += GOT_ENTRY_SIZE; | |
9b52905e NC |
2062 | /* R_PARISC_TLS_GD* needs two GOT entries */ |
2063 | if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE)) | |
2064 | sec->size += GOT_ENTRY_SIZE * 2; | |
2065 | else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD) | |
2066 | sec->size += GOT_ENTRY_SIZE; | |
a63e02c7 | 2067 | if (htab->etab.dynamic_sections_created |
ce757d15 | 2068 | && (info->shared |
875c0872 DA |
2069 | || (eh->dynindx != -1 |
2070 | && !eh->forced_local))) | |
ce757d15 | 2071 | { |
eea6121a | 2072 | htab->srelgot->size += sizeof (Elf32_External_Rela); |
9b52905e NC |
2073 | if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE)) |
2074 | htab->srelgot->size += 2 * sizeof (Elf32_External_Rela); | |
2075 | else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD) | |
2076 | htab->srelgot->size += sizeof (Elf32_External_Rela); | |
ce757d15 | 2077 | } |
4dc86686 AM |
2078 | } |
2079 | else | |
875c0872 | 2080 | eh->got.offset = (bfd_vma) -1; |
30667bf3 | 2081 | |
875c0872 | 2082 | if (hh->dyn_relocs == NULL) |
b34976b6 | 2083 | return TRUE; |
30667bf3 | 2084 | |
98ceb8ce AM |
2085 | /* If this is a -Bsymbolic shared link, then we need to discard all |
2086 | space allocated for dynamic pc-relative relocs against symbols | |
2087 | defined in a regular object. For the normal shared case, discard | |
2088 | space for relocs that have become local due to symbol visibility | |
2089 | changes. */ | |
2090 | if (info->shared) | |
446f2863 | 2091 | { |
98ceb8ce | 2092 | #if RELATIVE_DYNRELOCS |
875c0872 | 2093 | if (SYMBOL_CALLS_LOCAL (info, eh)) |
446f2863 | 2094 | { |
875c0872 | 2095 | struct elf32_hppa_dyn_reloc_entry **hdh_pp; |
30667bf3 | 2096 | |
875c0872 | 2097 | for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; ) |
98ceb8ce | 2098 | { |
875c0872 DA |
2099 | hdh_p->count -= hdh_p->relative_count; |
2100 | hdh_p->relative_count = 0; | |
2101 | if (hdh_p->count == 0) | |
a63e02c7 | 2102 | *hdh_pp = hdh_p->hdh_next; |
98ceb8ce | 2103 | else |
a63e02c7 | 2104 | hdh_pp = &hdh_p->hdh_next; |
98ceb8ce AM |
2105 | } |
2106 | } | |
2107 | #endif | |
4fc8051d AM |
2108 | |
2109 | /* Also discard relocs on undefined weak syms with non-default | |
2110 | visibility. */ | |
22d606e9 | 2111 | if (hh->dyn_relocs != NULL |
875c0872 | 2112 | && eh->root.type == bfd_link_hash_undefweak) |
22d606e9 AM |
2113 | { |
2114 | if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT) | |
2115 | hh->dyn_relocs = NULL; | |
2116 | ||
2117 | /* Make sure undefined weak symbols are output as a dynamic | |
2118 | symbol in PIEs. */ | |
2119 | else if (eh->dynindx == -1 | |
2120 | && !eh->forced_local) | |
2121 | { | |
2122 | if (! bfd_elf_link_record_dynamic_symbol (info, eh)) | |
2123 | return FALSE; | |
2124 | } | |
2125 | } | |
446f2863 | 2126 | } |
98ceb8ce | 2127 | else |
30667bf3 | 2128 | { |
98ceb8ce AM |
2129 | /* For the non-shared case, discard space for relocs against |
2130 | symbols which turn out to need copy relocs or are not | |
2131 | dynamic. */ | |
875c0872 DA |
2132 | |
2133 | if (!eh->non_got_ref | |
4fc8051d | 2134 | && ((ELIMINATE_COPY_RELOCS |
875c0872 DA |
2135 | && eh->def_dynamic |
2136 | && !eh->def_regular) | |
a63e02c7 | 2137 | || (htab->etab.dynamic_sections_created |
875c0872 DA |
2138 | && (eh->root.type == bfd_link_hash_undefweak |
2139 | || eh->root.type == bfd_link_hash_undefined)))) | |
98ceb8ce AM |
2140 | { |
2141 | /* Make sure this symbol is output as a dynamic symbol. | |
2142 | Undefined weak syms won't yet be marked as dynamic. */ | |
875c0872 DA |
2143 | if (eh->dynindx == -1 |
2144 | && !eh->forced_local | |
2145 | && eh->type != STT_PARISC_MILLI) | |
98ceb8ce | 2146 | { |
875c0872 | 2147 | if (! bfd_elf_link_record_dynamic_symbol (info, eh)) |
b34976b6 | 2148 | return FALSE; |
98ceb8ce AM |
2149 | } |
2150 | ||
2151 | /* If that succeeded, we know we'll be keeping all the | |
2152 | relocs. */ | |
875c0872 | 2153 | if (eh->dynindx != -1) |
98ceb8ce AM |
2154 | goto keep; |
2155 | } | |
446f2863 | 2156 | |
875c0872 | 2157 | hh->dyn_relocs = NULL; |
b34976b6 | 2158 | return TRUE; |
98ceb8ce | 2159 | |
ec338859 | 2160 | keep: ; |
30667bf3 | 2161 | } |
30667bf3 | 2162 | |
98ceb8ce | 2163 | /* Finally, allocate space. */ |
a63e02c7 | 2164 | for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next) |
30667bf3 | 2165 | { |
875c0872 DA |
2166 | asection *sreloc = elf_section_data (hdh_p->sec)->sreloc; |
2167 | sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2168 | } |
30667bf3 | 2169 | |
b34976b6 | 2170 | return TRUE; |
30667bf3 | 2171 | } |
30667bf3 | 2172 | |
d5c73c2f AM |
2173 | /* This function is called via elf_link_hash_traverse to force |
2174 | millicode symbols local so they do not end up as globals in the | |
2175 | dynamic symbol table. We ought to be able to do this in | |
2176 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2177 | for all dynamic symbols. Arguably, this is a bug in | |
2178 | elf_adjust_dynamic_symbol. */ | |
2179 | ||
b34976b6 | 2180 | static bfd_boolean |
875c0872 | 2181 | clobber_millicode_symbols (struct elf_link_hash_entry *eh, |
c39a58e6 | 2182 | struct bfd_link_info *info) |
d5c73c2f | 2183 | { |
875c0872 DA |
2184 | if (eh->root.type == bfd_link_hash_warning) |
2185 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
e92d460e | 2186 | |
875c0872 DA |
2187 | if (eh->type == STT_PARISC_MILLI |
2188 | && !eh->forced_local) | |
e0522e89 | 2189 | { |
875c0872 | 2190 | elf32_hppa_hide_symbol (info, eh, TRUE); |
e0522e89 | 2191 | } |
b34976b6 | 2192 | return TRUE; |
d5c73c2f AM |
2193 | } |
2194 | ||
98ceb8ce AM |
2195 | /* Find any dynamic relocs that apply to read-only sections. */ |
2196 | ||
b34976b6 | 2197 | static bfd_boolean |
875c0872 | 2198 | readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf) |
98ceb8ce | 2199 | { |
875c0872 DA |
2200 | struct elf32_hppa_link_hash_entry *hh; |
2201 | struct elf32_hppa_dyn_reloc_entry *hdh_p; | |
98ceb8ce | 2202 | |
875c0872 DA |
2203 | if (eh->root.type == bfd_link_hash_warning) |
2204 | eh = (struct elf_link_hash_entry *) eh->root.u.i.link; | |
e92d460e | 2205 | |
875c0872 | 2206 | hh = hppa_elf_hash_entry (eh); |
a63e02c7 | 2207 | for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next) |
98ceb8ce | 2208 | { |
875c0872 | 2209 | asection *sec = hdh_p->sec->output_section; |
98ceb8ce | 2210 | |
875c0872 | 2211 | if (sec != NULL && (sec->flags & SEC_READONLY) != 0) |
98ceb8ce | 2212 | { |
c39a58e6 | 2213 | struct bfd_link_info *info = inf; |
98ceb8ce AM |
2214 | |
2215 | info->flags |= DF_TEXTREL; | |
2216 | ||
2217 | /* Not an error, just cut short the traversal. */ | |
b34976b6 | 2218 | return FALSE; |
98ceb8ce AM |
2219 | } |
2220 | } | |
b34976b6 | 2221 | return TRUE; |
98ceb8ce AM |
2222 | } |
2223 | ||
30667bf3 AM |
2224 | /* Set the sizes of the dynamic sections. */ |
2225 | ||
b34976b6 | 2226 | static bfd_boolean |
c39a58e6 AM |
2227 | elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
2228 | struct bfd_link_info *info) | |
30667bf3 | 2229 | { |
83c81bfe | 2230 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2231 | bfd *dynobj; |
98ceb8ce | 2232 | bfd *ibfd; |
875c0872 | 2233 | asection *sec; |
b34976b6 | 2234 | bfd_boolean relocs; |
30667bf3 | 2235 | |
83c81bfe | 2236 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2237 | if (htab == NULL) |
2238 | return FALSE; | |
2239 | ||
a63e02c7 | 2240 | dynobj = htab->etab.dynobj; |
49e9d0d3 AM |
2241 | if (dynobj == NULL) |
2242 | abort (); | |
30667bf3 | 2243 | |
a63e02c7 | 2244 | if (htab->etab.dynamic_sections_created) |
30667bf3 AM |
2245 | { |
2246 | /* Set the contents of the .interp section to the interpreter. */ | |
893c4fe2 | 2247 | if (info->executable) |
30667bf3 | 2248 | { |
875c0872 DA |
2249 | sec = bfd_get_section_by_name (dynobj, ".interp"); |
2250 | if (sec == NULL) | |
49e9d0d3 | 2251 | abort (); |
875c0872 DA |
2252 | sec->size = sizeof ELF_DYNAMIC_INTERPRETER; |
2253 | sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
30667bf3 | 2254 | } |
74d1c347 | 2255 | |
d5c73c2f | 2256 | /* Force millicode symbols local. */ |
a63e02c7 | 2257 | elf_link_hash_traverse (&htab->etab, |
d5c73c2f AM |
2258 | clobber_millicode_symbols, |
2259 | info); | |
68fb2e56 | 2260 | } |
d5c73c2f | 2261 | |
98ceb8ce AM |
2262 | /* Set up .got and .plt offsets for local syms, and space for local |
2263 | dynamic relocs. */ | |
2264 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next) | |
68fb2e56 AM |
2265 | { |
2266 | bfd_signed_vma *local_got; | |
2267 | bfd_signed_vma *end_local_got; | |
2268 | bfd_signed_vma *local_plt; | |
2269 | bfd_signed_vma *end_local_plt; | |
2270 | bfd_size_type locsymcount; | |
2271 | Elf_Internal_Shdr *symtab_hdr; | |
2272 | asection *srel; | |
9b52905e | 2273 | char *local_tls_type; |
74d1c347 | 2274 | |
98ceb8ce | 2275 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2276 | continue; |
4dc86686 | 2277 | |
875c0872 | 2278 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
98ceb8ce | 2279 | { |
875c0872 | 2280 | struct elf32_hppa_dyn_reloc_entry *hdh_p; |
98ceb8ce | 2281 | |
875c0872 DA |
2282 | for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *) |
2283 | elf_section_data (sec)->local_dynrel); | |
2284 | hdh_p != NULL; | |
a63e02c7 | 2285 | hdh_p = hdh_p->hdh_next) |
98ceb8ce | 2286 | { |
875c0872 DA |
2287 | if (!bfd_is_abs_section (hdh_p->sec) |
2288 | && bfd_is_abs_section (hdh_p->sec->output_section)) | |
ec338859 AM |
2289 | { |
2290 | /* Input section has been discarded, either because | |
2291 | it is a copy of a linkonce section or due to | |
2292 | linker script /DISCARD/, so we'll be discarding | |
2293 | the relocs too. */ | |
2294 | } | |
875c0872 | 2295 | else if (hdh_p->count != 0) |
ec338859 | 2296 | { |
875c0872 DA |
2297 | srel = elf_section_data (hdh_p->sec)->sreloc; |
2298 | srel->size += hdh_p->count * sizeof (Elf32_External_Rela); | |
2299 | if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0) | |
248866a8 | 2300 | info->flags |= DF_TEXTREL; |
ec338859 | 2301 | } |
98ceb8ce AM |
2302 | } |
2303 | } | |
2304 | ||
2305 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2306 | if (!local_got) |
2307 | continue; | |
74d1c347 | 2308 | |
98ceb8ce | 2309 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2310 | locsymcount = symtab_hdr->sh_info; |
2311 | end_local_got = local_got + locsymcount; | |
9b52905e | 2312 | local_tls_type = hppa_elf_local_got_tls_type (ibfd); |
875c0872 | 2313 | sec = htab->sgot; |
83c81bfe | 2314 | srel = htab->srelgot; |
68fb2e56 AM |
2315 | for (; local_got < end_local_got; ++local_got) |
2316 | { | |
2317 | if (*local_got > 0) | |
4dc86686 | 2318 | { |
875c0872 DA |
2319 | *local_got = sec->size; |
2320 | sec->size += GOT_ENTRY_SIZE; | |
9b52905e NC |
2321 | if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE)) |
2322 | sec->size += 2 * GOT_ENTRY_SIZE; | |
2323 | else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD) | |
2324 | sec->size += GOT_ENTRY_SIZE; | |
875c0872 | 2325 | if (info->shared) |
9b52905e NC |
2326 | { |
2327 | srel->size += sizeof (Elf32_External_Rela); | |
2328 | if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE)) | |
2329 | srel->size += 2 * sizeof (Elf32_External_Rela); | |
2330 | else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD) | |
2331 | srel->size += sizeof (Elf32_External_Rela); | |
2332 | } | |
4dc86686 | 2333 | } |
68fb2e56 AM |
2334 | else |
2335 | *local_got = (bfd_vma) -1; | |
9b52905e NC |
2336 | |
2337 | ++local_tls_type; | |
68fb2e56 | 2338 | } |
74d1c347 | 2339 | |
68fb2e56 AM |
2340 | local_plt = end_local_got; |
2341 | end_local_plt = local_plt + locsymcount; | |
a63e02c7 | 2342 | if (! htab->etab.dynamic_sections_created) |
68fb2e56 AM |
2343 | { |
2344 | /* Won't be used, but be safe. */ | |
2345 | for (; local_plt < end_local_plt; ++local_plt) | |
2346 | *local_plt = (bfd_vma) -1; | |
2347 | } | |
2348 | else | |
2349 | { | |
875c0872 | 2350 | sec = htab->splt; |
83c81bfe | 2351 | srel = htab->srelplt; |
74d1c347 AM |
2352 | for (; local_plt < end_local_plt; ++local_plt) |
2353 | { | |
2354 | if (*local_plt > 0) | |
2355 | { | |
875c0872 DA |
2356 | *local_plt = sec->size; |
2357 | sec->size += PLT_ENTRY_SIZE; | |
74d1c347 | 2358 | if (info->shared) |
eea6121a | 2359 | srel->size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2360 | } |
2361 | else | |
2362 | *local_plt = (bfd_vma) -1; | |
2363 | } | |
2364 | } | |
30667bf3 | 2365 | } |
9b52905e NC |
2366 | |
2367 | if (htab->tls_ldm_got.refcount > 0) | |
2368 | { | |
2369 | /* Allocate 2 got entries and 1 dynamic reloc for | |
2370 | R_PARISC_TLS_DTPMOD32 relocs. */ | |
2371 | htab->tls_ldm_got.offset = htab->sgot->size; | |
2372 | htab->sgot->size += (GOT_ENTRY_SIZE * 2); | |
2373 | htab->srelgot->size += sizeof (Elf32_External_Rela); | |
2374 | } | |
2375 | else | |
2376 | htab->tls_ldm_got.offset = -1; | |
30667bf3 | 2377 | |
e5ee5df1 AM |
2378 | /* Do all the .plt entries without relocs first. The dynamic linker |
2379 | uses the last .plt reloc to find the end of the .plt (and hence | |
2380 | the start of the .got) for lazy linking. */ | |
a63e02c7 | 2381 | elf_link_hash_traverse (&htab->etab, allocate_plt_static, info); |
a8d02d66 | 2382 | |
98ceb8ce AM |
2383 | /* Allocate global sym .plt and .got entries, and space for global |
2384 | sym dynamic relocs. */ | |
a63e02c7 | 2385 | elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info); |
30667bf3 AM |
2386 | |
2387 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2388 | determined the sizes of the various dynamic sections. Allocate | |
2389 | memory for them. */ | |
b34976b6 | 2390 | relocs = FALSE; |
875c0872 | 2391 | for (sec = dynobj->sections; sec != NULL; sec = sec->next) |
30667bf3 | 2392 | { |
875c0872 | 2393 | if ((sec->flags & SEC_LINKER_CREATED) == 0) |
30667bf3 AM |
2394 | continue; |
2395 | ||
875c0872 | 2396 | if (sec == htab->splt) |
68fb2e56 | 2397 | { |
83c81bfe | 2398 | if (htab->need_plt_stub) |
68fb2e56 AM |
2399 | { |
2400 | /* Make space for the plt stub at the end of the .plt | |
2401 | section. We want this stub right at the end, up | |
2402 | against the .got section. */ | |
83c81bfe | 2403 | int gotalign = bfd_section_alignment (dynobj, htab->sgot); |
875c0872 | 2404 | int pltalign = bfd_section_alignment (dynobj, sec); |
68fb2e56 | 2405 | bfd_size_type mask; |
30667bf3 | 2406 | |
68fb2e56 | 2407 | if (gotalign > pltalign) |
875c0872 | 2408 | bfd_set_section_alignment (dynobj, sec, gotalign); |
68fb2e56 | 2409 | mask = ((bfd_size_type) 1 << gotalign) - 1; |
875c0872 | 2410 | sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask; |
68fb2e56 AM |
2411 | } |
2412 | } | |
c456f082 AM |
2413 | else if (sec == htab->sgot |
2414 | || sec == htab->sdynbss) | |
68fb2e56 | 2415 | ; |
0112cd26 | 2416 | else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela")) |
30667bf3 | 2417 | { |
875c0872 | 2418 | if (sec->size != 0) |
30667bf3 | 2419 | { |
4e12ff7f AM |
2420 | /* Remember whether there are any reloc sections other |
2421 | than .rela.plt. */ | |
875c0872 | 2422 | if (sec != htab->srelplt) |
b34976b6 | 2423 | relocs = TRUE; |
47d89dba | 2424 | |
30667bf3 AM |
2425 | /* We use the reloc_count field as a counter if we need |
2426 | to copy relocs into the output file. */ | |
875c0872 | 2427 | sec->reloc_count = 0; |
30667bf3 AM |
2428 | } |
2429 | } | |
30667bf3 AM |
2430 | else |
2431 | { | |
2432 | /* It's not one of our sections, so don't allocate space. */ | |
2433 | continue; | |
2434 | } | |
2435 | ||
875c0872 | 2436 | if (sec->size == 0) |
30667bf3 AM |
2437 | { |
2438 | /* If we don't need this section, strip it from the | |
2439 | output file. This is mostly to handle .rela.bss and | |
2440 | .rela.plt. We must create both sections in | |
2441 | create_dynamic_sections, because they must be created | |
2442 | before the linker maps input sections to output | |
2443 | sections. The linker does that before | |
2444 | adjust_dynamic_symbol is called, and it is that | |
2445 | function which decides whether anything needs to go | |
2446 | into these sections. */ | |
875c0872 | 2447 | sec->flags |= SEC_EXCLUDE; |
30667bf3 AM |
2448 | continue; |
2449 | } | |
2450 | ||
c456f082 AM |
2451 | if ((sec->flags & SEC_HAS_CONTENTS) == 0) |
2452 | continue; | |
2453 | ||
30667bf3 AM |
2454 | /* Allocate memory for the section contents. Zero it, because |
2455 | we may not fill in all the reloc sections. */ | |
875c0872 | 2456 | sec->contents = bfd_zalloc (dynobj, sec->size); |
c456f082 | 2457 | if (sec->contents == NULL) |
b34976b6 | 2458 | return FALSE; |
30667bf3 AM |
2459 | } |
2460 | ||
a63e02c7 | 2461 | if (htab->etab.dynamic_sections_created) |
30667bf3 AM |
2462 | { |
2463 | /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It | |
2464 | actually has nothing to do with the PLT, it is how we | |
2465 | communicate the LTP value of a load module to the dynamic | |
2466 | linker. */ | |
dc810e39 | 2467 | #define add_dynamic_entry(TAG, VAL) \ |
5a580b3a | 2468 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
dc810e39 AM |
2469 | |
2470 | if (!add_dynamic_entry (DT_PLTGOT, 0)) | |
b34976b6 | 2471 | return FALSE; |
30667bf3 AM |
2472 | |
2473 | /* Add some entries to the .dynamic section. We fill in the | |
2474 | values later, in elf32_hppa_finish_dynamic_sections, but we | |
2475 | must add the entries now so that we get the correct size for | |
2476 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
2477 | dynamic linker and used by the debugger. */ | |
3c27d551 | 2478 | if (info->executable) |
30667bf3 | 2479 | { |
dc810e39 | 2480 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
b34976b6 | 2481 | return FALSE; |
30667bf3 AM |
2482 | } |
2483 | ||
eea6121a | 2484 | if (htab->srelplt->size != 0) |
30667bf3 | 2485 | { |
dc810e39 AM |
2486 | if (!add_dynamic_entry (DT_PLTRELSZ, 0) |
2487 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
2488 | || !add_dynamic_entry (DT_JMPREL, 0)) | |
b34976b6 | 2489 | return FALSE; |
30667bf3 AM |
2490 | } |
2491 | ||
2492 | if (relocs) | |
2493 | { | |
dc810e39 AM |
2494 | if (!add_dynamic_entry (DT_RELA, 0) |
2495 | || !add_dynamic_entry (DT_RELASZ, 0) | |
2496 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela))) | |
b34976b6 | 2497 | return FALSE; |
30667bf3 | 2498 | |
98ceb8ce AM |
2499 | /* If any dynamic relocs apply to a read-only section, |
2500 | then we need a DT_TEXTREL entry. */ | |
248866a8 | 2501 | if ((info->flags & DF_TEXTREL) == 0) |
a63e02c7 | 2502 | elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info); |
98ceb8ce AM |
2503 | |
2504 | if ((info->flags & DF_TEXTREL) != 0) | |
2505 | { | |
2506 | if (!add_dynamic_entry (DT_TEXTREL, 0)) | |
b34976b6 | 2507 | return FALSE; |
98ceb8ce | 2508 | } |
30667bf3 AM |
2509 | } |
2510 | } | |
dc810e39 | 2511 | #undef add_dynamic_entry |
30667bf3 | 2512 | |
b34976b6 | 2513 | return TRUE; |
30667bf3 AM |
2514 | } |
2515 | ||
30667bf3 AM |
2516 | /* External entry points for sizing and building linker stubs. */ |
2517 | ||
b4655ea9 AM |
2518 | /* Set up various things so that we can make a list of input sections |
2519 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 2520 | 0 when no stubs will be needed, and 1 on success. */ |
30667bf3 | 2521 | |
b4655ea9 | 2522 | int |
c39a58e6 | 2523 | elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info) |
30667bf3 AM |
2524 | { |
2525 | bfd *input_bfd; | |
b4655ea9 AM |
2526 | unsigned int bfd_count; |
2527 | int top_id, top_index; | |
30667bf3 | 2528 | asection *section; |
25f72752 | 2529 | asection **input_list, **list; |
dc810e39 | 2530 | bfd_size_type amt; |
b4655ea9 | 2531 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
30667bf3 | 2532 | |
4dfe6ac6 NC |
2533 | if (htab == NULL) |
2534 | return -1; | |
2535 | ||
1badb539 AM |
2536 | /* Count the number of input BFDs and find the top input section id. */ |
2537 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 AM |
2538 | input_bfd != NULL; |
2539 | input_bfd = input_bfd->link_next) | |
2540 | { | |
2541 | bfd_count += 1; | |
25f72752 AM |
2542 | for (section = input_bfd->sections; |
2543 | section != NULL; | |
2544 | section = section->next) | |
2545 | { | |
2546 | if (top_id < section->id) | |
2547 | top_id = section->id; | |
2548 | } | |
30667bf3 | 2549 | } |
b4655ea9 | 2550 | htab->bfd_count = bfd_count; |
30667bf3 | 2551 | |
dc810e39 | 2552 | amt = sizeof (struct map_stub) * (top_id + 1); |
c39a58e6 | 2553 | htab->stub_group = bfd_zmalloc (amt); |
83c81bfe | 2554 | if (htab->stub_group == NULL) |
b4655ea9 | 2555 | return -1; |
1badb539 | 2556 | |
b4655ea9 | 2557 | /* We can't use output_bfd->section_count here to find the top output |
1badb539 | 2558 | section index as some sections may have been removed, and |
8423293d | 2559 | strip_excluded_output_sections doesn't renumber the indices. */ |
1badb539 AM |
2560 | for (section = output_bfd->sections, top_index = 0; |
2561 | section != NULL; | |
2562 | section = section->next) | |
2563 | { | |
2564 | if (top_index < section->index) | |
2565 | top_index = section->index; | |
2566 | } | |
2567 | ||
b4655ea9 | 2568 | htab->top_index = top_index; |
dc810e39 | 2569 | amt = sizeof (asection *) * (top_index + 1); |
c39a58e6 | 2570 | input_list = bfd_malloc (amt); |
b4655ea9 | 2571 | htab->input_list = input_list; |
25f72752 | 2572 | if (input_list == NULL) |
b4655ea9 | 2573 | return -1; |
25f72752 | 2574 | |
1badb539 AM |
2575 | /* For sections we aren't interested in, mark their entries with a |
2576 | value we can check later. */ | |
2577 | list = input_list + top_index; | |
2578 | do | |
2579 | *list = bfd_abs_section_ptr; | |
2580 | while (list-- != input_list); | |
2581 | ||
2582 | for (section = output_bfd->sections; | |
2583 | section != NULL; | |
2584 | section = section->next) | |
2585 | { | |
47d89dba | 2586 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2587 | input_list[section->index] = NULL; |
2588 | } | |
2589 | ||
b4655ea9 AM |
2590 | return 1; |
2591 | } | |
2592 | ||
2593 | /* The linker repeatedly calls this function for each input section, | |
2594 | in the order that input sections are linked into output sections. | |
2595 | Build lists of input sections to determine groupings between which | |
2596 | we may insert linker stubs. */ | |
2597 | ||
2598 | void | |
c39a58e6 | 2599 | elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec) |
b4655ea9 AM |
2600 | { |
2601 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
2602 | ||
4dfe6ac6 NC |
2603 | if (htab == NULL) |
2604 | return; | |
2605 | ||
b4655ea9 | 2606 | if (isec->output_section->index <= htab->top_index) |
25f72752 | 2607 | { |
b4655ea9 AM |
2608 | asection **list = htab->input_list + isec->output_section->index; |
2609 | if (*list != bfd_abs_section_ptr) | |
25f72752 | 2610 | { |
b4655ea9 | 2611 | /* Steal the link_sec pointer for our list. */ |
83c81bfe | 2612 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
b4655ea9 AM |
2613 | /* This happens to make the list in reverse order, |
2614 | which is what we want. */ | |
2615 | PREV_SEC (isec) = *list; | |
2616 | *list = isec; | |
25f72752 AM |
2617 | } |
2618 | } | |
b4655ea9 | 2619 | } |
25f72752 | 2620 | |
b4655ea9 AM |
2621 | /* See whether we can group stub sections together. Grouping stub |
2622 | sections may result in fewer stubs. More importantly, we need to | |
2623 | put all .init* and .fini* stubs at the beginning of the .init or | |
2624 | .fini output sections respectively, because glibc splits the | |
2625 | _init and _fini functions into multiple parts. Putting a stub in | |
2626 | the middle of a function is not a good idea. */ | |
2627 | ||
2628 | static void | |
c39a58e6 AM |
2629 | group_sections (struct elf32_hppa_link_hash_table *htab, |
2630 | bfd_size_type stub_group_size, | |
2631 | bfd_boolean stubs_always_before_branch) | |
b4655ea9 AM |
2632 | { |
2633 | asection **list = htab->input_list + htab->top_index; | |
1badb539 | 2634 | do |
25f72752 AM |
2635 | { |
2636 | asection *tail = *list; | |
1badb539 AM |
2637 | if (tail == bfd_abs_section_ptr) |
2638 | continue; | |
25f72752 AM |
2639 | while (tail != NULL) |
2640 | { | |
2641 | asection *curr; | |
2642 | asection *prev; | |
2643 | bfd_size_type total; | |
00b28bb0 | 2644 | bfd_boolean big_sec; |
25f72752 AM |
2645 | |
2646 | curr = tail; | |
eea6121a | 2647 | total = tail->size; |
00b28bb0 AM |
2648 | big_sec = total >= stub_group_size; |
2649 | ||
25f72752 AM |
2650 | while ((prev = PREV_SEC (curr)) != NULL |
2651 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2652 | < stub_group_size)) |
25f72752 AM |
2653 | curr = prev; |
2654 | ||
2655 | /* OK, the size from the start of CURR to the end is less | |
a248e267 | 2656 | than 240000 bytes and thus can be handled by one stub |
25f72752 | 2657 | section. (or the tail section is itself larger than |
a248e267 | 2658 | 240000 bytes, in which case we may be toast.) |
25f72752 AM |
2659 | We should really be keeping track of the total size of |
2660 | stubs added here, as stubs contribute to the final output | |
2661 | section size. That's a little tricky, and this way will | |
a248e267 AM |
2662 | only break if stubs added total more than 22144 bytes, or |
2663 | 2768 long branch stubs. It seems unlikely for more than | |
2664 | 2768 different functions to be called, especially from | |
2665 | code only 240000 bytes long. This limit used to be | |
2666 | 250000, but c++ code tends to generate lots of little | |
2667 | functions, and sometimes violated the assumption. */ | |
25f72752 AM |
2668 | do |
2669 | { | |
2670 | prev = PREV_SEC (tail); | |
2671 | /* Set up this stub group. */ | |
83c81bfe | 2672 | htab->stub_group[tail->id].link_sec = curr; |
25f72752 AM |
2673 | } |
2674 | while (tail != curr && (tail = prev) != NULL); | |
2675 | ||
a248e267 | 2676 | /* But wait, there's more! Input sections up to 240000 |
00b28bb0 AM |
2677 | bytes before the stub section can be handled by it too. |
2678 | Don't do this if we have a really large section after the | |
2679 | stubs, as adding more stubs increases the chance that | |
2680 | branches may not reach into the stub section. */ | |
2681 | if (!stubs_always_before_branch && !big_sec) | |
25f72752 | 2682 | { |
47d89dba AM |
2683 | total = 0; |
2684 | while (prev != NULL | |
2685 | && ((total += tail->output_offset - prev->output_offset) | |
2686 | < stub_group_size)) | |
2687 | { | |
2688 | tail = prev; | |
2689 | prev = PREV_SEC (tail); | |
83c81bfe | 2690 | htab->stub_group[tail->id].link_sec = curr; |
47d89dba | 2691 | } |
25f72752 AM |
2692 | } |
2693 | tail = prev; | |
2694 | } | |
2695 | } | |
b4655ea9 AM |
2696 | while (list-- != htab->input_list); |
2697 | free (htab->input_list); | |
1badb539 | 2698 | #undef PREV_SEC |
b4655ea9 AM |
2699 | } |
2700 | ||
2701 | /* Read in all local syms for all input bfds, and create hash entries | |
2702 | for export stubs if we are building a multi-subspace shared lib. | |
2703 | Returns -1 on error, 1 if export stubs created, 0 otherwise. */ | |
2704 | ||
2705 | static int | |
c39a58e6 | 2706 | get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info) |
b4655ea9 AM |
2707 | { |
2708 | unsigned int bfd_indx; | |
2709 | Elf_Internal_Sym *local_syms, **all_local_syms; | |
2710 | int stub_changed = 0; | |
2711 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
30667bf3 | 2712 | |
4dfe6ac6 NC |
2713 | if (htab == NULL) |
2714 | return -1; | |
2715 | ||
30667bf3 AM |
2716 | /* We want to read in symbol extension records only once. To do this |
2717 | we need to read in the local symbols in parallel and save them for | |
2718 | later use; so hold pointers to the local symbols in an array. */ | |
b4655ea9 | 2719 | bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count; |
c39a58e6 | 2720 | all_local_syms = bfd_zmalloc (amt); |
b4655ea9 | 2721 | htab->all_local_syms = all_local_syms; |
30667bf3 | 2722 | if (all_local_syms == NULL) |
b4655ea9 | 2723 | return -1; |
30667bf3 AM |
2724 | |
2725 | /* Walk over all the input BFDs, swapping in local symbols. | |
2726 | If we are creating a shared library, create hash entries for the | |
2727 | export stubs. */ | |
b4655ea9 | 2728 | for (bfd_indx = 0; |
30667bf3 | 2729 | input_bfd != NULL; |
25f72752 | 2730 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2731 | { |
2732 | Elf_Internal_Shdr *symtab_hdr; | |
edd21aca | 2733 | |
252b5132 RH |
2734 | /* We'll need the symbol table in a second. */ |
2735 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2736 | if (symtab_hdr->sh_info == 0) | |
2737 | continue; | |
2738 | ||
6cdc0ccc AM |
2739 | /* We need an array of the local symbols attached to the input bfd. */ |
2740 | local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
edd21aca | 2741 | if (local_syms == NULL) |
edd21aca | 2742 | { |
6cdc0ccc AM |
2743 | local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, |
2744 | symtab_hdr->sh_info, 0, | |
2745 | NULL, NULL, NULL); | |
2746 | /* Cache them for elf_link_input_bfd. */ | |
2747 | symtab_hdr->contents = (unsigned char *) local_syms; | |
edd21aca | 2748 | } |
6cdc0ccc AM |
2749 | if (local_syms == NULL) |
2750 | return -1; | |
edd21aca | 2751 | |
6cdc0ccc | 2752 | all_local_syms[bfd_indx] = local_syms; |
edd21aca | 2753 | |
83c81bfe | 2754 | if (info->shared && htab->multi_subspace) |
30667bf3 | 2755 | { |
875c0872 DA |
2756 | struct elf_link_hash_entry **eh_syms; |
2757 | struct elf_link_hash_entry **eh_symend; | |
30667bf3 AM |
2758 | unsigned int symcount; |
2759 | ||
2760 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2761 | - symtab_hdr->sh_info); | |
875c0872 DA |
2762 | eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd); |
2763 | eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount); | |
30667bf3 AM |
2764 | |
2765 | /* Look through the global syms for functions; We need to | |
2766 | build export stubs for all globally visible functions. */ | |
875c0872 | 2767 | for (; eh_syms < eh_symend; eh_syms++) |
30667bf3 | 2768 | { |
875c0872 | 2769 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 | 2770 | |
875c0872 | 2771 | hh = hppa_elf_hash_entry (*eh_syms); |
30667bf3 | 2772 | |
a63e02c7 DA |
2773 | while (hh->eh.root.type == bfd_link_hash_indirect |
2774 | || hh->eh.root.type == bfd_link_hash_warning) | |
2775 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
30667bf3 AM |
2776 | |
2777 | /* At this point in the link, undefined syms have been | |
2778 | resolved, so we need to check that the symbol was | |
2779 | defined in this BFD. */ | |
a63e02c7 DA |
2780 | if ((hh->eh.root.type == bfd_link_hash_defined |
2781 | || hh->eh.root.type == bfd_link_hash_defweak) | |
2782 | && hh->eh.type == STT_FUNC | |
2783 | && hh->eh.root.u.def.section->output_section != NULL | |
2784 | && (hh->eh.root.u.def.section->output_section->owner | |
25f72752 | 2785 | == output_bfd) |
a63e02c7 DA |
2786 | && hh->eh.root.u.def.section->owner == input_bfd |
2787 | && hh->eh.def_regular | |
2788 | && !hh->eh.forced_local | |
2789 | && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT) | |
30667bf3 AM |
2790 | { |
2791 | asection *sec; | |
2792 | const char *stub_name; | |
875c0872 | 2793 | struct elf32_hppa_stub_hash_entry *hsh; |
30667bf3 | 2794 | |
a63e02c7 | 2795 | sec = hh->eh.root.u.def.section; |
9b52905e | 2796 | stub_name = hh_name (hh); |
a63e02c7 | 2797 | hsh = hppa_stub_hash_lookup (&htab->bstab, |
30667bf3 | 2798 | stub_name, |
b34976b6 | 2799 | FALSE, FALSE); |
875c0872 | 2800 | if (hsh == NULL) |
30667bf3 | 2801 | { |
875c0872 DA |
2802 | hsh = hppa_add_stub (stub_name, sec, htab); |
2803 | if (!hsh) | |
b4655ea9 | 2804 | return -1; |
30667bf3 | 2805 | |
a63e02c7 DA |
2806 | hsh->target_value = hh->eh.root.u.def.value; |
2807 | hsh->target_section = hh->eh.root.u.def.section; | |
875c0872 | 2808 | hsh->stub_type = hppa_stub_export; |
a63e02c7 | 2809 | hsh->hh = hh; |
30667bf3 AM |
2810 | stub_changed = 1; |
2811 | } | |
2812 | else | |
2813 | { | |
d003868e AM |
2814 | (*_bfd_error_handler) (_("%B: duplicate export stub %s"), |
2815 | input_bfd, | |
8f615d07 | 2816 | stub_name); |
30667bf3 AM |
2817 | } |
2818 | } | |
2819 | } | |
30667bf3 AM |
2820 | } |
2821 | } | |
edd21aca | 2822 | |
b4655ea9 AM |
2823 | return stub_changed; |
2824 | } | |
2825 | ||
2826 | /* Determine and set the size of the stub section for a final link. | |
2827 | ||
2828 | The basic idea here is to examine all the relocations looking for | |
2829 | PC-relative calls to a target that is unreachable with a "bl" | |
2830 | instruction. */ | |
2831 | ||
b34976b6 | 2832 | bfd_boolean |
c39a58e6 AM |
2833 | elf32_hppa_size_stubs |
2834 | (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info, | |
2835 | bfd_boolean multi_subspace, bfd_signed_vma group_size, | |
2836 | asection * (*add_stub_section) (const char *, asection *), | |
2837 | void (*layout_sections_again) (void)) | |
b4655ea9 AM |
2838 | { |
2839 | bfd_size_type stub_group_size; | |
b34976b6 AM |
2840 | bfd_boolean stubs_always_before_branch; |
2841 | bfd_boolean stub_changed; | |
b4655ea9 AM |
2842 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
2843 | ||
4dfe6ac6 NC |
2844 | if (htab == NULL) |
2845 | return FALSE; | |
2846 | ||
b4655ea9 AM |
2847 | /* Stash our params away. */ |
2848 | htab->stub_bfd = stub_bfd; | |
2849 | htab->multi_subspace = multi_subspace; | |
2850 | htab->add_stub_section = add_stub_section; | |
2851 | htab->layout_sections_again = layout_sections_again; | |
2852 | stubs_always_before_branch = group_size < 0; | |
2853 | if (group_size < 0) | |
2854 | stub_group_size = -group_size; | |
2855 | else | |
2856 | stub_group_size = group_size; | |
2857 | if (stub_group_size == 1) | |
2858 | { | |
2859 | /* Default values. */ | |
acc990f2 AM |
2860 | if (stubs_always_before_branch) |
2861 | { | |
2862 | stub_group_size = 7680000; | |
2863 | if (htab->has_17bit_branch || htab->multi_subspace) | |
2864 | stub_group_size = 240000; | |
2865 | if (htab->has_12bit_branch) | |
2866 | stub_group_size = 7500; | |
2867 | } | |
2868 | else | |
2869 | { | |
2870 | stub_group_size = 6971392; | |
2871 | if (htab->has_17bit_branch || htab->multi_subspace) | |
2872 | stub_group_size = 217856; | |
2873 | if (htab->has_12bit_branch) | |
2874 | stub_group_size = 6808; | |
2875 | } | |
b4655ea9 AM |
2876 | } |
2877 | ||
2878 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
2879 | ||
2880 | switch (get_local_syms (output_bfd, info->input_bfds, info)) | |
2881 | { | |
2882 | default: | |
2883 | if (htab->all_local_syms) | |
2884 | goto error_ret_free_local; | |
b34976b6 | 2885 | return FALSE; |
b4655ea9 AM |
2886 | |
2887 | case 0: | |
b34976b6 | 2888 | stub_changed = FALSE; |
b4655ea9 AM |
2889 | break; |
2890 | ||
2891 | case 1: | |
b34976b6 | 2892 | stub_changed = TRUE; |
b4655ea9 AM |
2893 | break; |
2894 | } | |
2895 | ||
edd21aca AM |
2896 | while (1) |
2897 | { | |
b4655ea9 AM |
2898 | bfd *input_bfd; |
2899 | unsigned int bfd_indx; | |
30667bf3 AM |
2900 | asection *stub_sec; |
2901 | ||
25f72752 | 2902 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2903 | input_bfd != NULL; |
25f72752 | 2904 | input_bfd = input_bfd->link_next, bfd_indx++) |
30667bf3 AM |
2905 | { |
2906 | Elf_Internal_Shdr *symtab_hdr; | |
b4655ea9 AM |
2907 | asection *section; |
2908 | Elf_Internal_Sym *local_syms; | |
30667bf3 AM |
2909 | |
2910 | /* We'll need the symbol table in a second. */ | |
2911 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2912 | if (symtab_hdr->sh_info == 0) | |
2913 | continue; | |
2914 | ||
b4655ea9 | 2915 | local_syms = htab->all_local_syms[bfd_indx]; |
30667bf3 AM |
2916 | |
2917 | /* Walk over each section attached to the input bfd. */ | |
2918 | for (section = input_bfd->sections; | |
2919 | section != NULL; | |
25f72752 | 2920 | section = section->next) |
30667bf3 | 2921 | { |
30667bf3 AM |
2922 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
2923 | ||
2924 | /* If there aren't any relocs, then there's nothing more | |
2925 | to do. */ | |
2926 | if ((section->flags & SEC_RELOC) == 0 | |
2927 | || section->reloc_count == 0) | |
2928 | continue; | |
2929 | ||
25f72752 AM |
2930 | /* If this section is a link-once section that will be |
2931 | discarded, then don't create any stubs. */ | |
2932 | if (section->output_section == NULL | |
2933 | || section->output_section->owner != output_bfd) | |
2934 | continue; | |
2935 | ||
1e2f5b6e AM |
2936 | /* Get the relocs. */ |
2937 | internal_relocs | |
c39a58e6 | 2938 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
45d6a902 | 2939 | info->keep_memory); |
30667bf3 | 2940 | if (internal_relocs == NULL) |
1e2f5b6e | 2941 | goto error_ret_free_local; |
30667bf3 AM |
2942 | |
2943 | /* Now examine each relocation. */ | |
2944 | irela = internal_relocs; | |
2945 | irelaend = irela + section->reloc_count; | |
2946 | for (; irela < irelaend; irela++) | |
2947 | { | |
2948 | unsigned int r_type, r_indx; | |
2949 | enum elf32_hppa_stub_type stub_type; | |
875c0872 | 2950 | struct elf32_hppa_stub_hash_entry *hsh; |
30667bf3 AM |
2951 | asection *sym_sec; |
2952 | bfd_vma sym_value; | |
2953 | bfd_vma destination; | |
875c0872 | 2954 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 | 2955 | char *stub_name; |
25f72752 | 2956 | const asection *id_sec; |
30667bf3 AM |
2957 | |
2958 | r_type = ELF32_R_TYPE (irela->r_info); | |
2959 | r_indx = ELF32_R_SYM (irela->r_info); | |
2960 | ||
2961 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2962 | { | |
2963 | bfd_set_error (bfd_error_bad_value); | |
1e2f5b6e AM |
2964 | error_ret_free_internal: |
2965 | if (elf_section_data (section)->relocs == NULL) | |
2966 | free (internal_relocs); | |
2967 | goto error_ret_free_local; | |
30667bf3 AM |
2968 | } |
2969 | ||
2970 | /* Only look for stubs on call instructions. */ | |
2971 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
2972 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
2973 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
2974 | continue; | |
2975 | ||
2976 | /* Now determine the call target, its name, value, | |
2977 | section. */ | |
2978 | sym_sec = NULL; | |
2979 | sym_value = 0; | |
2980 | destination = 0; | |
875c0872 | 2981 | hh = NULL; |
30667bf3 AM |
2982 | if (r_indx < symtab_hdr->sh_info) |
2983 | { | |
2984 | /* It's a local symbol. */ | |
2985 | Elf_Internal_Sym *sym; | |
2986 | Elf_Internal_Shdr *hdr; | |
4fbb74a6 | 2987 | unsigned int shndx; |
30667bf3 AM |
2988 | |
2989 | sym = local_syms + r_indx; | |
30667bf3 AM |
2990 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) |
2991 | sym_value = sym->st_value; | |
4fbb74a6 AM |
2992 | shndx = sym->st_shndx; |
2993 | if (shndx < elf_numsections (input_bfd)) | |
2994 | { | |
2995 | hdr = elf_elfsections (input_bfd)[shndx]; | |
2996 | sym_sec = hdr->bfd_section; | |
2997 | destination = (sym_value + irela->r_addend | |
2998 | + sym_sec->output_offset | |
2999 | + sym_sec->output_section->vma); | |
3000 | } | |
30667bf3 AM |
3001 | } |
3002 | else | |
3003 | { | |
3004 | /* It's an external symbol. */ | |
3005 | int e_indx; | |
3006 | ||
3007 | e_indx = r_indx - symtab_hdr->sh_info; | |
875c0872 | 3008 | hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]); |
30667bf3 | 3009 | |
a63e02c7 DA |
3010 | while (hh->eh.root.type == bfd_link_hash_indirect |
3011 | || hh->eh.root.type == bfd_link_hash_warning) | |
3012 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
30667bf3 | 3013 | |
a63e02c7 DA |
3014 | if (hh->eh.root.type == bfd_link_hash_defined |
3015 | || hh->eh.root.type == bfd_link_hash_defweak) | |
30667bf3 | 3016 | { |
a63e02c7 DA |
3017 | sym_sec = hh->eh.root.u.def.section; |
3018 | sym_value = hh->eh.root.u.def.value; | |
30667bf3 AM |
3019 | if (sym_sec->output_section != NULL) |
3020 | destination = (sym_value + irela->r_addend | |
3021 | + sym_sec->output_offset | |
3022 | + sym_sec->output_section->vma); | |
3023 | } | |
a63e02c7 | 3024 | else if (hh->eh.root.type == bfd_link_hash_undefweak) |
c432ba1a AM |
3025 | { |
3026 | if (! info->shared) | |
3027 | continue; | |
3028 | } | |
a63e02c7 | 3029 | else if (hh->eh.root.type == bfd_link_hash_undefined) |
c432ba1a | 3030 | { |
59c2e50f | 3031 | if (! (info->unresolved_syms_in_objects == RM_IGNORE |
a63e02c7 | 3032 | && (ELF_ST_VISIBILITY (hh->eh.other) |
c432ba1a | 3033 | == STV_DEFAULT) |
a63e02c7 | 3034 | && hh->eh.type != STT_PARISC_MILLI)) |
c432ba1a AM |
3035 | continue; |
3036 | } | |
30667bf3 AM |
3037 | else |
3038 | { | |
3039 | bfd_set_error (bfd_error_bad_value); | |
3040 | goto error_ret_free_internal; | |
3041 | } | |
3042 | } | |
3043 | ||
3044 | /* Determine what (if any) linker stub is needed. */ | |
875c0872 | 3045 | stub_type = hppa_type_of_stub (section, irela, hh, |
a252afa4 | 3046 | destination, info); |
30667bf3 AM |
3047 | if (stub_type == hppa_stub_none) |
3048 | continue; | |
3049 | ||
25f72752 | 3050 | /* Support for grouping stub sections. */ |
83c81bfe | 3051 | id_sec = htab->stub_group[section->id].link_sec; |
25f72752 | 3052 | |
30667bf3 | 3053 | /* Get the name of this stub. */ |
875c0872 | 3054 | stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela); |
30667bf3 AM |
3055 | if (!stub_name) |
3056 | goto error_ret_free_internal; | |
3057 | ||
a63e02c7 | 3058 | hsh = hppa_stub_hash_lookup (&htab->bstab, |
30667bf3 | 3059 | stub_name, |
b34976b6 | 3060 | FALSE, FALSE); |
875c0872 | 3061 | if (hsh != NULL) |
30667bf3 AM |
3062 | { |
3063 | /* The proper stub has already been created. */ | |
3064 | free (stub_name); | |
3065 | continue; | |
3066 | } | |
3067 | ||
875c0872 DA |
3068 | hsh = hppa_add_stub (stub_name, section, htab); |
3069 | if (hsh == NULL) | |
30667bf3 AM |
3070 | { |
3071 | free (stub_name); | |
1e2f5b6e | 3072 | goto error_ret_free_internal; |
30667bf3 AM |
3073 | } |
3074 | ||
875c0872 DA |
3075 | hsh->target_value = sym_value; |
3076 | hsh->target_section = sym_sec; | |
3077 | hsh->stub_type = stub_type; | |
30667bf3 AM |
3078 | if (info->shared) |
3079 | { | |
3080 | if (stub_type == hppa_stub_import) | |
875c0872 | 3081 | hsh->stub_type = hppa_stub_import_shared; |
98ceb8ce | 3082 | else if (stub_type == hppa_stub_long_branch) |
875c0872 | 3083 | hsh->stub_type = hppa_stub_long_branch_shared; |
30667bf3 | 3084 | } |
a63e02c7 | 3085 | hsh->hh = hh; |
b34976b6 | 3086 | stub_changed = TRUE; |
30667bf3 AM |
3087 | } |
3088 | ||
3089 | /* We're done with the internal relocs, free them. */ | |
1e2f5b6e AM |
3090 | if (elf_section_data (section)->relocs == NULL) |
3091 | free (internal_relocs); | |
30667bf3 AM |
3092 | } |
3093 | } | |
3094 | ||
3095 | if (!stub_changed) | |
3096 | break; | |
3097 | ||
3098 | /* OK, we've added some stubs. Find out the new size of the | |
3099 | stub sections. */ | |
83c81bfe | 3100 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3101 | stub_sec != NULL; |
3102 | stub_sec = stub_sec->next) | |
eea6121a | 3103 | stub_sec->size = 0; |
74d1c347 | 3104 | |
a63e02c7 | 3105 | bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab); |
74d1c347 | 3106 | |
30667bf3 | 3107 | /* Ask the linker to do its stuff. */ |
83c81bfe | 3108 | (*htab->layout_sections_again) (); |
b34976b6 | 3109 | stub_changed = FALSE; |
30667bf3 AM |
3110 | } |
3111 | ||
6cdc0ccc | 3112 | free (htab->all_local_syms); |
b34976b6 | 3113 | return TRUE; |
30667bf3 AM |
3114 | |
3115 | error_ret_free_local: | |
b4655ea9 | 3116 | free (htab->all_local_syms); |
b34976b6 | 3117 | return FALSE; |
30667bf3 AM |
3118 | } |
3119 | ||
30667bf3 AM |
3120 | /* For a final link, this function is called after we have sized the |
3121 | stubs to provide a value for __gp. */ | |
3122 | ||
b34976b6 | 3123 | bfd_boolean |
c39a58e6 | 3124 | elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info) |
30667bf3 | 3125 | { |
b4655ea9 AM |
3126 | struct bfd_link_hash_entry *h; |
3127 | asection *sec = NULL; | |
3128 | bfd_vma gp_val = 0; | |
83c81bfe | 3129 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3130 | |
83c81bfe | 3131 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
3132 | if (htab == NULL) |
3133 | return FALSE; | |
3134 | ||
a63e02c7 | 3135 | h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE); |
30667bf3 | 3136 | |
df8634e3 | 3137 | if (h != NULL |
b4655ea9 AM |
3138 | && (h->type == bfd_link_hash_defined |
3139 | || h->type == bfd_link_hash_defweak)) | |
30667bf3 | 3140 | { |
b4655ea9 AM |
3141 | gp_val = h->u.def.value; |
3142 | sec = h->u.def.section; | |
30667bf3 AM |
3143 | } |
3144 | else | |
3145 | { | |
0eddce27 AM |
3146 | asection *splt = bfd_get_section_by_name (abfd, ".plt"); |
3147 | asection *sgot = bfd_get_section_by_name (abfd, ".got"); | |
b4655ea9 | 3148 | |
74d1c347 AM |
3149 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
3150 | or .data, if these sections exist. In the case of choosing | |
3151 | .plt try to make the LTP ideal for addressing anywhere in the | |
3152 | .plt or .got with a 14 bit signed offset. Typically, the end | |
3153 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
3154 | if either the .plt or .got is larger than 0x2000. If both | |
3155 | the .plt and .got are smaller than 0x2000, choose the end of | |
3156 | the .plt section. */ | |
225247f0 JT |
3157 | sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0 |
3158 | ? NULL : splt; | |
74d1c347 | 3159 | if (sec != NULL) |
30667bf3 | 3160 | { |
eea6121a AM |
3161 | gp_val = sec->size; |
3162 | if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000)) | |
74d1c347 AM |
3163 | { |
3164 | gp_val = 0x2000; | |
3165 | } | |
3166 | } | |
3167 | else | |
3168 | { | |
b4655ea9 | 3169 | sec = sgot; |
74d1c347 AM |
3170 | if (sec != NULL) |
3171 | { | |
225247f0 JT |
3172 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0) |
3173 | { | |
3174 | /* We know we don't have a .plt. If .got is large, | |
3175 | offset our LTP. */ | |
3176 | if (sec->size > 0x2000) | |
3177 | gp_val = 0x2000; | |
3178 | } | |
74d1c347 AM |
3179 | } |
3180 | else | |
3181 | { | |
3182 | /* No .plt or .got. Who cares what the LTP is? */ | |
3183 | sec = bfd_get_section_by_name (abfd, ".data"); | |
3184 | } | |
30667bf3 | 3185 | } |
df8634e3 AM |
3186 | |
3187 | if (h != NULL) | |
3188 | { | |
b4655ea9 AM |
3189 | h->type = bfd_link_hash_defined; |
3190 | h->u.def.value = gp_val; | |
df8634e3 | 3191 | if (sec != NULL) |
b4655ea9 | 3192 | h->u.def.section = sec; |
df8634e3 | 3193 | else |
b4655ea9 | 3194 | h->u.def.section = bfd_abs_section_ptr; |
df8634e3 | 3195 | } |
30667bf3 AM |
3196 | } |
3197 | ||
b32b5d6e | 3198 | if (sec != NULL && sec->output_section != NULL) |
74d1c347 AM |
3199 | gp_val += sec->output_section->vma + sec->output_offset; |
3200 | ||
3201 | elf_gp (abfd) = gp_val; | |
b34976b6 | 3202 | return TRUE; |
30667bf3 AM |
3203 | } |
3204 | ||
30667bf3 AM |
3205 | /* Build all the stubs associated with the current output file. The |
3206 | stubs are kept in a hash table attached to the main linker hash | |
3207 | table. We also set up the .plt entries for statically linked PIC | |
3208 | functions here. This function is called via hppaelf_finish in the | |
3209 | linker. */ | |
3210 | ||
b34976b6 | 3211 | bfd_boolean |
c39a58e6 | 3212 | elf32_hppa_build_stubs (struct bfd_link_info *info) |
30667bf3 AM |
3213 | { |
3214 | asection *stub_sec; | |
3215 | struct bfd_hash_table *table; | |
83c81bfe | 3216 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3217 | |
83c81bfe | 3218 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
3219 | if (htab == NULL) |
3220 | return FALSE; | |
30667bf3 | 3221 | |
83c81bfe | 3222 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
3223 | stub_sec != NULL; |
3224 | stub_sec = stub_sec->next) | |
3225 | { | |
dc810e39 | 3226 | bfd_size_type size; |
30667bf3 AM |
3227 | |
3228 | /* Allocate memory to hold the linker stubs. */ | |
eea6121a | 3229 | size = stub_sec->size; |
c39a58e6 | 3230 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, size); |
30667bf3 | 3231 | if (stub_sec->contents == NULL && size != 0) |
b34976b6 | 3232 | return FALSE; |
eea6121a | 3233 | stub_sec->size = 0; |
30667bf3 AM |
3234 | } |
3235 | ||
3236 | /* Build the stubs as directed by the stub hash table. */ | |
a63e02c7 | 3237 | table = &htab->bstab; |
30667bf3 AM |
3238 | bfd_hash_traverse (table, hppa_build_one_stub, info); |
3239 | ||
b34976b6 | 3240 | return TRUE; |
30667bf3 AM |
3241 | } |
3242 | ||
9b52905e NC |
3243 | /* Return the base vma address which should be subtracted from the real |
3244 | address when resolving a dtpoff relocation. | |
3245 | This is PT_TLS segment p_vaddr. */ | |
3246 | ||
3247 | static bfd_vma | |
3248 | dtpoff_base (struct bfd_link_info *info) | |
3249 | { | |
3250 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
3251 | if (elf_hash_table (info)->tls_sec == NULL) | |
3252 | return 0; | |
3253 | return elf_hash_table (info)->tls_sec->vma; | |
3254 | } | |
3255 | ||
3256 | /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */ | |
3257 | ||
3258 | static bfd_vma | |
3259 | tpoff (struct bfd_link_info *info, bfd_vma address) | |
3260 | { | |
3261 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
3262 | ||
3263 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
3264 | if (htab->tls_sec == NULL) | |
3265 | return 0; | |
3266 | /* hppa TLS ABI is variant I and static TLS block start just after | |
3267 | tcbhead structure which has 2 pointer fields. */ | |
3268 | return (address - htab->tls_sec->vma | |
3269 | + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power)); | |
3270 | } | |
3271 | ||
c46b7515 AM |
3272 | /* Perform a final link. */ |
3273 | ||
b34976b6 | 3274 | static bfd_boolean |
c39a58e6 | 3275 | elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info) |
c46b7515 | 3276 | { |
4dc86686 | 3277 | /* Invoke the regular ELF linker to do all the work. */ |
c152c796 | 3278 | if (!bfd_elf_final_link (abfd, info)) |
b34976b6 | 3279 | return FALSE; |
c46b7515 AM |
3280 | |
3281 | /* If we're producing a final executable, sort the contents of the | |
985142a4 | 3282 | unwind section. */ |
d9f40817 DA |
3283 | if (info->relocatable) |
3284 | return TRUE; | |
3285 | ||
46fe4e66 | 3286 | return elf_hppa_sort_unwind (abfd); |
c46b7515 AM |
3287 | } |
3288 | ||
3289 | /* Record the lowest address for the data and text segments. */ | |
3290 | ||
3291 | static void | |
2ea37f1c | 3292 | hppa_record_segment_addr (bfd *abfd, asection *section, void *data) |
c46b7515 | 3293 | { |
83c81bfe | 3294 | struct elf32_hppa_link_hash_table *htab; |
c46b7515 | 3295 | |
875c0872 | 3296 | htab = (struct elf32_hppa_link_hash_table*) data; |
4dfe6ac6 NC |
3297 | if (htab == NULL) |
3298 | return; | |
c46b7515 AM |
3299 | |
3300 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3301 | { | |
2ea37f1c NC |
3302 | bfd_vma value; |
3303 | Elf_Internal_Phdr *p; | |
3304 | ||
3305 | p = _bfd_elf_find_segment_containing_section (abfd, section->output_section); | |
3306 | BFD_ASSERT (p != NULL); | |
3307 | value = p->p_vaddr; | |
c46b7515 AM |
3308 | |
3309 | if ((section->flags & SEC_READONLY) != 0) | |
3310 | { | |
83c81bfe AM |
3311 | if (value < htab->text_segment_base) |
3312 | htab->text_segment_base = value; | |
c46b7515 AM |
3313 | } |
3314 | else | |
3315 | { | |
83c81bfe AM |
3316 | if (value < htab->data_segment_base) |
3317 | htab->data_segment_base = value; | |
c46b7515 AM |
3318 | } |
3319 | } | |
3320 | } | |
3321 | ||
30667bf3 AM |
3322 | /* Perform a relocation as part of a final link. */ |
3323 | ||
3324 | static bfd_reloc_status_type | |
c39a58e6 AM |
3325 | final_link_relocate (asection *input_section, |
3326 | bfd_byte *contents, | |
875c0872 | 3327 | const Elf_Internal_Rela *rela, |
c39a58e6 AM |
3328 | bfd_vma value, |
3329 | struct elf32_hppa_link_hash_table *htab, | |
3330 | asection *sym_sec, | |
875c0872 | 3331 | struct elf32_hppa_link_hash_entry *hh, |
a252afa4 | 3332 | struct bfd_link_info *info) |
30667bf3 AM |
3333 | { |
3334 | int insn; | |
875c0872 | 3335 | unsigned int r_type = ELF32_R_TYPE (rela->r_info); |
a252afa4 | 3336 | unsigned int orig_r_type = r_type; |
30667bf3 AM |
3337 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; |
3338 | int r_format = howto->bitsize; | |
3339 | enum hppa_reloc_field_selector_type_alt r_field; | |
3340 | bfd *input_bfd = input_section->owner; | |
875c0872 | 3341 | bfd_vma offset = rela->r_offset; |
30667bf3 AM |
3342 | bfd_vma max_branch_offset = 0; |
3343 | bfd_byte *hit_data = contents + offset; | |
875c0872 | 3344 | bfd_signed_vma addend = rela->r_addend; |
30667bf3 | 3345 | bfd_vma location; |
875c0872 DA |
3346 | struct elf32_hppa_stub_hash_entry *hsh = NULL; |
3347 | int val; | |
30667bf3 AM |
3348 | |
3349 | if (r_type == R_PARISC_NONE) | |
3350 | return bfd_reloc_ok; | |
3351 | ||
3352 | insn = bfd_get_32 (input_bfd, hit_data); | |
3353 | ||
3354 | /* Find out where we are and where we're going. */ | |
3355 | location = (offset + | |
3356 | input_section->output_offset + | |
3357 | input_section->output_section->vma); | |
3358 | ||
a252afa4 DA |
3359 | /* If we are not building a shared library, convert DLTIND relocs to |
3360 | DPREL relocs. */ | |
3361 | if (!info->shared) | |
3362 | { | |
3363 | switch (r_type) | |
4fc8051d AM |
3364 | { |
3365 | case R_PARISC_DLTIND21L: | |
3366 | r_type = R_PARISC_DPREL21L; | |
a252afa4 DA |
3367 | break; |
3368 | ||
4fc8051d AM |
3369 | case R_PARISC_DLTIND14R: |
3370 | r_type = R_PARISC_DPREL14R; | |
a252afa4 DA |
3371 | break; |
3372 | ||
4fc8051d AM |
3373 | case R_PARISC_DLTIND14F: |
3374 | r_type = R_PARISC_DPREL14F; | |
a252afa4 DA |
3375 | break; |
3376 | } | |
3377 | } | |
3378 | ||
30667bf3 AM |
3379 | switch (r_type) |
3380 | { | |
3381 | case R_PARISC_PCREL12F: | |
3382 | case R_PARISC_PCREL17F: | |
3383 | case R_PARISC_PCREL22F: | |
067fa4a6 AM |
3384 | /* If this call should go via the plt, find the import stub in |
3385 | the stub hash. */ | |
30667bf3 AM |
3386 | if (sym_sec == NULL |
3387 | || sym_sec->output_section == NULL | |
875c0872 | 3388 | || (hh != NULL |
a63e02c7 DA |
3389 | && hh->eh.plt.offset != (bfd_vma) -1 |
3390 | && hh->eh.dynindx != -1 | |
875c0872 | 3391 | && !hh->plabel |
a252afa4 | 3392 | && (info->shared |
a63e02c7 DA |
3393 | || !hh->eh.def_regular |
3394 | || hh->eh.root.type == bfd_link_hash_defweak))) | |
30667bf3 | 3395 | { |
875c0872 DA |
3396 | hsh = hppa_get_stub_entry (input_section, sym_sec, |
3397 | hh, rela, htab); | |
3398 | if (hsh != NULL) | |
30667bf3 | 3399 | { |
875c0872 DA |
3400 | value = (hsh->stub_offset |
3401 | + hsh->stub_sec->output_offset | |
3402 | + hsh->stub_sec->output_section->vma); | |
30667bf3 AM |
3403 | addend = 0; |
3404 | } | |
875c0872 | 3405 | else if (sym_sec == NULL && hh != NULL |
a63e02c7 | 3406 | && hh->eh.root.type == bfd_link_hash_undefweak) |
30667bf3 | 3407 | { |
db20fd76 AM |
3408 | /* It's OK if undefined weak. Calls to undefined weak |
3409 | symbols behave as if the "called" function | |
3410 | immediately returns. We can thus call to a weak | |
3411 | function without first checking whether the function | |
3412 | is defined. */ | |
30667bf3 | 3413 | value = location; |
db20fd76 | 3414 | addend = 8; |
30667bf3 AM |
3415 | } |
3416 | else | |
f09ebc7d | 3417 | return bfd_reloc_undefined; |
30667bf3 AM |
3418 | } |
3419 | /* Fall thru. */ | |
3420 | ||
3421 | case R_PARISC_PCREL21L: | |
3422 | case R_PARISC_PCREL17C: | |
3423 | case R_PARISC_PCREL17R: | |
3424 | case R_PARISC_PCREL14R: | |
3425 | case R_PARISC_PCREL14F: | |
36751eee | 3426 | case R_PARISC_PCREL32: |
30667bf3 AM |
3427 | /* Make it a pc relative offset. */ |
3428 | value -= location; | |
3429 | addend -= 8; | |
3430 | break; | |
3431 | ||
3432 | case R_PARISC_DPREL21L: | |
3433 | case R_PARISC_DPREL14R: | |
3434 | case R_PARISC_DPREL14F: | |
f6fd0237 DA |
3435 | case R_PARISC_TLS_GD21L: |
3436 | case R_PARISC_TLS_LDM21L: | |
3437 | case R_PARISC_TLS_IE21L: | |
a252afa4 DA |
3438 | /* Convert instructions that use the linkage table pointer (r19) to |
3439 | instructions that use the global data pointer (dp). This is the | |
3440 | most efficient way of using PIC code in an incomplete executable, | |
3441 | but the user must follow the standard runtime conventions for | |
3442 | accessing data for this to work. */ | |
f6fd0237 DA |
3443 | if (orig_r_type == R_PARISC_DLTIND21L |
3444 | || (!info->shared | |
3445 | && (r_type == R_PARISC_TLS_GD21L | |
3446 | || r_type == R_PARISC_TLS_LDM21L | |
3447 | || r_type == R_PARISC_TLS_IE21L))) | |
a252afa4 DA |
3448 | { |
3449 | /* Convert addil instructions if the original reloc was a | |
3450 | DLTIND21L. GCC sometimes uses a register other than r19 for | |
3451 | the operation, so we must convert any addil instruction | |
3452 | that uses this relocation. */ | |
3453 | if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26)) | |
3454 | insn = ADDIL_DP; | |
3455 | else | |
3456 | /* We must have a ldil instruction. It's too hard to find | |
3457 | and convert the associated add instruction, so issue an | |
3458 | error. */ | |
3459 | (*_bfd_error_handler) | |
d003868e AM |
3460 | (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"), |
3461 | input_bfd, | |
3462 | input_section, | |
d1fa68d3 | 3463 | (long) offset, |
a252afa4 DA |
3464 | howto->name, |
3465 | insn); | |
3466 | } | |
3467 | else if (orig_r_type == R_PARISC_DLTIND14F) | |
3468 | { | |
3469 | /* This must be a format 1 load/store. Change the base | |
3470 | register to dp. */ | |
3471 | insn = (insn & 0xfc1ffff) | (27 << 21); | |
3472 | } | |
3473 | ||
30667bf3 | 3474 | /* For all the DP relative relocations, we need to examine the symbol's |
95d0f04a DA |
3475 | section. If it has no section or if it's a code section, then |
3476 | "data pointer relative" makes no sense. In that case we don't | |
3477 | adjust the "value", and for 21 bit addil instructions, we change the | |
3478 | source addend register from %dp to %r0. This situation commonly | |
3479 | arises for undefined weak symbols and when a variable's "constness" | |
30667bf3 AM |
3480 | is declared differently from the way the variable is defined. For |
3481 | instance: "extern int foo" with foo defined as "const int foo". */ | |
95d0f04a | 3482 | if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0) |
30667bf3 AM |
3483 | { |
3484 | if ((insn & ((0x3f << 26) | (0x1f << 21))) | |
3485 | == (((int) OP_ADDIL << 26) | (27 << 21))) | |
3486 | { | |
3487 | insn &= ~ (0x1f << 21); | |
30667bf3 AM |
3488 | } |
3489 | /* Now try to make things easy for the dynamic linker. */ | |
3490 | ||
3491 | break; | |
3492 | } | |
74d1c347 | 3493 | /* Fall thru. */ |
30667bf3 AM |
3494 | |
3495 | case R_PARISC_DLTIND21L: | |
3496 | case R_PARISC_DLTIND14R: | |
3497 | case R_PARISC_DLTIND14F: | |
9b52905e | 3498 | case R_PARISC_TLS_GD14R: |
9b52905e | 3499 | case R_PARISC_TLS_LDM14R: |
9b52905e | 3500 | case R_PARISC_TLS_IE14R: |
30667bf3 AM |
3501 | value -= elf_gp (input_section->output_section->owner); |
3502 | break; | |
3503 | ||
c46b7515 AM |
3504 | case R_PARISC_SEGREL32: |
3505 | if ((sym_sec->flags & SEC_CODE) != 0) | |
83c81bfe | 3506 | value -= htab->text_segment_base; |
c46b7515 | 3507 | else |
83c81bfe | 3508 | value -= htab->data_segment_base; |
c46b7515 AM |
3509 | break; |
3510 | ||
30667bf3 AM |
3511 | default: |
3512 | break; | |
3513 | } | |
3514 | ||
3515 | switch (r_type) | |
3516 | { | |
3517 | case R_PARISC_DIR32: | |
47d89dba | 3518 | case R_PARISC_DIR14F: |
30667bf3 AM |
3519 | case R_PARISC_DIR17F: |
3520 | case R_PARISC_PCREL17C: | |
3521 | case R_PARISC_PCREL14F: | |
36751eee | 3522 | case R_PARISC_PCREL32: |
30667bf3 AM |
3523 | case R_PARISC_DPREL14F: |
3524 | case R_PARISC_PLABEL32: | |
3525 | case R_PARISC_DLTIND14F: | |
3526 | case R_PARISC_SEGBASE: | |
3527 | case R_PARISC_SEGREL32: | |
9b52905e NC |
3528 | case R_PARISC_TLS_DTPMOD32: |
3529 | case R_PARISC_TLS_DTPOFF32: | |
3530 | case R_PARISC_TLS_TPREL32: | |
30667bf3 AM |
3531 | r_field = e_fsel; |
3532 | break; | |
3533 | ||
1bf42538 | 3534 | case R_PARISC_DLTIND21L: |
30667bf3 | 3535 | case R_PARISC_PCREL21L: |
30667bf3 | 3536 | case R_PARISC_PLABEL21L: |
1bf42538 JL |
3537 | r_field = e_lsel; |
3538 | break; | |
3539 | ||
3540 | case R_PARISC_DIR21L: | |
3541 | case R_PARISC_DPREL21L: | |
9b52905e NC |
3542 | case R_PARISC_TLS_GD21L: |
3543 | case R_PARISC_TLS_LDM21L: | |
3544 | case R_PARISC_TLS_LDO21L: | |
3545 | case R_PARISC_TLS_IE21L: | |
3546 | case R_PARISC_TLS_LE21L: | |
30667bf3 AM |
3547 | r_field = e_lrsel; |
3548 | break; | |
3549 | ||
30667bf3 | 3550 | case R_PARISC_PCREL17R: |
30667bf3 | 3551 | case R_PARISC_PCREL14R: |
30667bf3 AM |
3552 | case R_PARISC_PLABEL14R: |
3553 | case R_PARISC_DLTIND14R: | |
1bf42538 JL |
3554 | r_field = e_rsel; |
3555 | break; | |
3556 | ||
3557 | case R_PARISC_DIR17R: | |
3558 | case R_PARISC_DIR14R: | |
3559 | case R_PARISC_DPREL14R: | |
9b52905e NC |
3560 | case R_PARISC_TLS_GD14R: |
3561 | case R_PARISC_TLS_LDM14R: | |
3562 | case R_PARISC_TLS_LDO14R: | |
3563 | case R_PARISC_TLS_IE14R: | |
3564 | case R_PARISC_TLS_LE14R: | |
30667bf3 AM |
3565 | r_field = e_rrsel; |
3566 | break; | |
3567 | ||
3568 | case R_PARISC_PCREL12F: | |
3569 | case R_PARISC_PCREL17F: | |
3570 | case R_PARISC_PCREL22F: | |
3571 | r_field = e_fsel; | |
3572 | ||
3573 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3574 | { | |
3575 | max_branch_offset = (1 << (17-1)) << 2; | |
3576 | } | |
3577 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3578 | { | |
3579 | max_branch_offset = (1 << (12-1)) << 2; | |
3580 | } | |
3581 | else | |
3582 | { | |
3583 | max_branch_offset = (1 << (22-1)) << 2; | |
3584 | } | |
3585 | ||
3586 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3587 | undefined syms. We've already checked for a stub for the | |
3588 | shared undefined case. */ | |
3589 | if (sym_sec == NULL) | |
3590 | break; | |
3591 | ||
3592 | /* If the branch is out of reach, then redirect the | |
3593 | call to the local stub for this function. */ | |
3594 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3595 | { | |
875c0872 DA |
3596 | hsh = hppa_get_stub_entry (input_section, sym_sec, |
3597 | hh, rela, htab); | |
3598 | if (hsh == NULL) | |
f09ebc7d | 3599 | return bfd_reloc_undefined; |
30667bf3 AM |
3600 | |
3601 | /* Munge up the value and addend so that we call the stub | |
3602 | rather than the procedure directly. */ | |
875c0872 DA |
3603 | value = (hsh->stub_offset |
3604 | + hsh->stub_sec->output_offset | |
3605 | + hsh->stub_sec->output_section->vma | |
30667bf3 AM |
3606 | - location); |
3607 | addend = -8; | |
3608 | } | |
3609 | break; | |
3610 | ||
3611 | /* Something we don't know how to handle. */ | |
3612 | default: | |
3613 | return bfd_reloc_notsupported; | |
3614 | } | |
3615 | ||
3616 | /* Make sure we can reach the stub. */ | |
3617 | if (max_branch_offset != 0 | |
3618 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3619 | { | |
3620 | (*_bfd_error_handler) | |
d003868e AM |
3621 | (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"), |
3622 | input_bfd, | |
3623 | input_section, | |
d1fa68d3 | 3624 | (long) offset, |
a63e02c7 | 3625 | hsh->bh_root.string); |
ce757d15 | 3626 | bfd_set_error (bfd_error_bad_value); |
30667bf3 AM |
3627 | return bfd_reloc_notsupported; |
3628 | } | |
3629 | ||
3630 | val = hppa_field_adjust (value, addend, r_field); | |
3631 | ||
3632 | switch (r_type) | |
3633 | { | |
3634 | case R_PARISC_PCREL12F: | |
3635 | case R_PARISC_PCREL17C: | |
3636 | case R_PARISC_PCREL17F: | |
3637 | case R_PARISC_PCREL17R: | |
3638 | case R_PARISC_PCREL22F: | |
3639 | case R_PARISC_DIR17F: | |
3640 | case R_PARISC_DIR17R: | |
3641 | /* This is a branch. Divide the offset by four. | |
3642 | Note that we need to decide whether it's a branch or | |
3643 | otherwise by inspecting the reloc. Inspecting insn won't | |
3644 | work as insn might be from a .word directive. */ | |
3645 | val >>= 2; | |
3646 | break; | |
3647 | ||
3648 | default: | |
3649 | break; | |
3650 | } | |
3651 | ||
3652 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3653 | ||
3654 | /* Update the instruction word. */ | |
74d1c347 | 3655 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3656 | return bfd_reloc_ok; |
3657 | } | |
3658 | ||
30667bf3 AM |
3659 | /* Relocate an HPPA ELF section. */ |
3660 | ||
b34976b6 | 3661 | static bfd_boolean |
c39a58e6 AM |
3662 | elf32_hppa_relocate_section (bfd *output_bfd, |
3663 | struct bfd_link_info *info, | |
3664 | bfd *input_bfd, | |
3665 | asection *input_section, | |
3666 | bfd_byte *contents, | |
3667 | Elf_Internal_Rela *relocs, | |
3668 | Elf_Internal_Sym *local_syms, | |
3669 | asection **local_sections) | |
30667bf3 | 3670 | { |
30667bf3 | 3671 | bfd_vma *local_got_offsets; |
83c81bfe | 3672 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3673 | Elf_Internal_Shdr *symtab_hdr; |
875c0872 | 3674 | Elf_Internal_Rela *rela; |
30667bf3 | 3675 | Elf_Internal_Rela *relend; |
30667bf3 AM |
3676 | |
3677 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3678 | ||
83c81bfe | 3679 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
3680 | if (htab == NULL) |
3681 | return FALSE; | |
3682 | ||
74d1c347 | 3683 | local_got_offsets = elf_local_got_offsets (input_bfd); |
30667bf3 | 3684 | |
875c0872 | 3685 | rela = relocs; |
30667bf3 | 3686 | relend = relocs + input_section->reloc_count; |
875c0872 | 3687 | for (; rela < relend; rela++) |
30667bf3 AM |
3688 | { |
3689 | unsigned int r_type; | |
3690 | reloc_howto_type *howto; | |
3691 | unsigned int r_symndx; | |
875c0872 | 3692 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 AM |
3693 | Elf_Internal_Sym *sym; |
3694 | asection *sym_sec; | |
3695 | bfd_vma relocation; | |
875c0872 | 3696 | bfd_reloc_status_type rstatus; |
30667bf3 | 3697 | const char *sym_name; |
b34976b6 AM |
3698 | bfd_boolean plabel; |
3699 | bfd_boolean warned_undef; | |
30667bf3 | 3700 | |
875c0872 | 3701 | r_type = ELF32_R_TYPE (rela->r_info); |
30667bf3 AM |
3702 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) |
3703 | { | |
3704 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3705 | return FALSE; |
30667bf3 AM |
3706 | } |
3707 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3708 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3709 | continue; | |
3710 | ||
875c0872 DA |
3711 | r_symndx = ELF32_R_SYM (rela->r_info); |
3712 | hh = NULL; | |
30667bf3 AM |
3713 | sym = NULL; |
3714 | sym_sec = NULL; | |
b34976b6 | 3715 | warned_undef = FALSE; |
30667bf3 AM |
3716 | if (r_symndx < symtab_hdr->sh_info) |
3717 | { | |
3718 | /* This is a local symbol, h defaults to NULL. */ | |
3719 | sym = local_syms + r_symndx; | |
3720 | sym_sec = local_sections[r_symndx]; | |
875c0872 | 3721 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela); |
30667bf3 AM |
3722 | } |
3723 | else | |
3724 | { | |
875c0872 | 3725 | struct elf_link_hash_entry *eh; |
560e09e9 | 3726 | bfd_boolean unresolved_reloc; |
b2a8e766 | 3727 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); |
560e09e9 | 3728 | |
875c0872 | 3729 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela, |
b2a8e766 | 3730 | r_symndx, symtab_hdr, sym_hashes, |
875c0872 | 3731 | eh, sym_sec, relocation, |
b2a8e766 | 3732 | unresolved_reloc, warned_undef); |
560e09e9 | 3733 | |
ab96bf03 AM |
3734 | if (!info->relocatable |
3735 | && relocation == 0 | |
875c0872 DA |
3736 | && eh->root.type != bfd_link_hash_defined |
3737 | && eh->root.type != bfd_link_hash_defweak | |
3738 | && eh->root.type != bfd_link_hash_undefweak) | |
4fc8051d | 3739 | { |
59c2e50f | 3740 | if (info->unresolved_syms_in_objects == RM_IGNORE |
875c0872 DA |
3741 | && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT |
3742 | && eh->type == STT_PARISC_MILLI) | |
560e09e9 NC |
3743 | { |
3744 | if (! info->callbacks->undefined_symbol | |
9b52905e | 3745 | (info, eh_name (eh), input_bfd, |
875c0872 | 3746 | input_section, rela->r_offset, FALSE)) |
560e09e9 NC |
3747 | return FALSE; |
3748 | warned_undef = TRUE; | |
3749 | } | |
30667bf3 | 3750 | } |
875c0872 | 3751 | hh = hppa_elf_hash_entry (eh); |
30667bf3 AM |
3752 | } |
3753 | ||
ab96bf03 AM |
3754 | if (sym_sec != NULL && elf_discarded_section (sym_sec)) |
3755 | { | |
3756 | /* For relocs against symbols from removed linkonce | |
3757 | sections, or sections discarded by a linker script, | |
3758 | we just want the section contents zeroed. Avoid any | |
3759 | special processing. */ | |
3760 | _bfd_clear_contents (elf_hppa_howto_table + r_type, input_bfd, | |
3761 | contents + rela->r_offset); | |
3762 | rela->r_info = 0; | |
3763 | rela->r_addend = 0; | |
3764 | continue; | |
3765 | } | |
3766 | ||
3767 | if (info->relocatable) | |
3768 | continue; | |
3769 | ||
30667bf3 | 3770 | /* Do any required modifications to the relocation value, and |
25f72752 AM |
3771 | determine what types of dynamic info we need to output, if |
3772 | any. */ | |
74d1c347 | 3773 | plabel = 0; |
30667bf3 AM |
3774 | switch (r_type) |
3775 | { | |
3776 | case R_PARISC_DLTIND14F: | |
3777 | case R_PARISC_DLTIND14R: | |
3778 | case R_PARISC_DLTIND21L: | |
ce757d15 AM |
3779 | { |
3780 | bfd_vma off; | |
b34976b6 | 3781 | bfd_boolean do_got = 0; |
ce757d15 AM |
3782 | |
3783 | /* Relocation is to the entry for this symbol in the | |
3784 | global offset table. */ | |
875c0872 | 3785 | if (hh != NULL) |
ce757d15 | 3786 | { |
b34976b6 | 3787 | bfd_boolean dyn; |
ce757d15 | 3788 | |
a63e02c7 DA |
3789 | off = hh->eh.got.offset; |
3790 | dyn = htab->etab.dynamic_sections_created; | |
c152c796 | 3791 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, |
a63e02c7 | 3792 | &hh->eh)) |
ce757d15 AM |
3793 | { |
3794 | /* If we aren't going to call finish_dynamic_symbol, | |
3795 | then we need to handle initialisation of the .got | |
3796 | entry and create needed relocs here. Since the | |
3797 | offset must always be a multiple of 4, we use the | |
3798 | least significant bit to record whether we have | |
3799 | initialised it already. */ | |
3800 | if ((off & 1) != 0) | |
3801 | off &= ~1; | |
3802 | else | |
3803 | { | |
a63e02c7 | 3804 | hh->eh.got.offset |= 1; |
ce757d15 AM |
3805 | do_got = 1; |
3806 | } | |
3807 | } | |
3808 | } | |
3809 | else | |
3810 | { | |
3811 | /* Local symbol case. */ | |
3812 | if (local_got_offsets == NULL) | |
3813 | abort (); | |
3814 | ||
3815 | off = local_got_offsets[r_symndx]; | |
3816 | ||
3817 | /* The offset must always be a multiple of 4. We use | |
3818 | the least significant bit to record whether we have | |
3819 | already generated the necessary reloc. */ | |
3820 | if ((off & 1) != 0) | |
3821 | off &= ~1; | |
3822 | else | |
3823 | { | |
3824 | local_got_offsets[r_symndx] |= 1; | |
3825 | do_got = 1; | |
3826 | } | |
3827 | } | |
68fb2e56 | 3828 | |
ce757d15 AM |
3829 | if (do_got) |
3830 | { | |
3831 | if (info->shared) | |
3832 | { | |
3833 | /* Output a dynamic relocation for this GOT entry. | |
3834 | In this case it is relative to the base of the | |
3835 | object because the symbol index is zero. */ | |
3836 | Elf_Internal_Rela outrel; | |
947216bf | 3837 | bfd_byte *loc; |
875c0872 | 3838 | asection *sec = htab->srelgot; |
ce757d15 AM |
3839 | |
3840 | outrel.r_offset = (off | |
3841 | + htab->sgot->output_offset | |
3842 | + htab->sgot->output_section->vma); | |
3843 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); | |
3844 | outrel.r_addend = relocation; | |
875c0872 DA |
3845 | loc = sec->contents; |
3846 | loc += sec->reloc_count++ * sizeof (Elf32_External_Rela); | |
ce757d15 AM |
3847 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
3848 | } | |
3849 | else | |
30667bf3 | 3850 | bfd_put_32 (output_bfd, relocation, |
83c81bfe | 3851 | htab->sgot->contents + off); |
ce757d15 | 3852 | } |
30667bf3 | 3853 | |
ce757d15 AM |
3854 | if (off >= (bfd_vma) -2) |
3855 | abort (); | |
30667bf3 | 3856 | |
ce757d15 AM |
3857 | /* Add the base of the GOT to the relocation value. */ |
3858 | relocation = (off | |
3859 | + htab->sgot->output_offset | |
3860 | + htab->sgot->output_section->vma); | |
3861 | } | |
30667bf3 | 3862 | break; |
252b5132 | 3863 | |
c46b7515 AM |
3864 | case R_PARISC_SEGREL32: |
3865 | /* If this is the first SEGREL relocation, then initialize | |
3866 | the segment base values. */ | |
83c81bfe AM |
3867 | if (htab->text_segment_base == (bfd_vma) -1) |
3868 | bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); | |
c46b7515 AM |
3869 | break; |
3870 | ||
30667bf3 AM |
3871 | case R_PARISC_PLABEL14R: |
3872 | case R_PARISC_PLABEL21L: | |
3873 | case R_PARISC_PLABEL32: | |
a63e02c7 | 3874 | if (htab->etab.dynamic_sections_created) |
252b5132 | 3875 | { |
ce757d15 | 3876 | bfd_vma off; |
b34976b6 | 3877 | bfd_boolean do_plt = 0; |
74d1c347 AM |
3878 | /* If we have a global symbol with a PLT slot, then |
3879 | redirect this relocation to it. */ | |
875c0872 | 3880 | if (hh != NULL) |
74d1c347 | 3881 | { |
a63e02c7 | 3882 | off = hh->eh.plt.offset; |
c152c796 | 3883 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, |
a63e02c7 | 3884 | &hh->eh)) |
8dea1268 AM |
3885 | { |
3886 | /* In a non-shared link, adjust_dynamic_symbols | |
3887 | isn't called for symbols forced local. We | |
dc810e39 | 3888 | need to write out the plt entry here. */ |
8dea1268 AM |
3889 | if ((off & 1) != 0) |
3890 | off &= ~1; | |
3891 | else | |
3892 | { | |
a63e02c7 | 3893 | hh->eh.plt.offset |= 1; |
ce757d15 | 3894 | do_plt = 1; |
8dea1268 AM |
3895 | } |
3896 | } | |
74d1c347 AM |
3897 | } |
3898 | else | |
3899 | { | |
68fb2e56 AM |
3900 | bfd_vma *local_plt_offsets; |
3901 | ||
3902 | if (local_got_offsets == NULL) | |
3903 | abort (); | |
74d1c347 | 3904 | |
68fb2e56 AM |
3905 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3906 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3907 | |
3908 | /* As for the local .got entry case, we use the last | |
3909 | bit to record whether we've already initialised | |
3910 | this local .plt entry. */ | |
3911 | if ((off & 1) != 0) | |
3912 | off &= ~1; | |
ce757d15 AM |
3913 | else |
3914 | { | |
3915 | local_plt_offsets[r_symndx] |= 1; | |
3916 | do_plt = 1; | |
3917 | } | |
3918 | } | |
3919 | ||
3920 | if (do_plt) | |
3921 | { | |
3922 | if (info->shared) | |
3923 | { | |
3924 | /* Output a dynamic IPLT relocation for this | |
3925 | PLT entry. */ | |
3926 | Elf_Internal_Rela outrel; | |
947216bf AM |
3927 | bfd_byte *loc; |
3928 | asection *s = htab->srelplt; | |
ce757d15 AM |
3929 | |
3930 | outrel.r_offset = (off | |
3931 | + htab->splt->output_offset | |
3932 | + htab->splt->output_section->vma); | |
3933 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); | |
3934 | outrel.r_addend = relocation; | |
947216bf AM |
3935 | loc = s->contents; |
3936 | loc += s->reloc_count++ * sizeof (Elf32_External_Rela); | |
ce757d15 AM |
3937 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
3938 | } | |
74d1c347 AM |
3939 | else |
3940 | { | |
3941 | bfd_put_32 (output_bfd, | |
3942 | relocation, | |
83c81bfe | 3943 | htab->splt->contents + off); |
74d1c347 | 3944 | bfd_put_32 (output_bfd, |
83c81bfe AM |
3945 | elf_gp (htab->splt->output_section->owner), |
3946 | htab->splt->contents + off + 4); | |
74d1c347 AM |
3947 | } |
3948 | } | |
3949 | ||
68fb2e56 | 3950 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3951 | abort (); |
74d1c347 AM |
3952 | |
3953 | /* PLABELs contain function pointers. Relocation is to | |
3954 | the entry for the function in the .plt. The magic +2 | |
3955 | offset signals to $$dyncall that the function pointer | |
3956 | is in the .plt and thus has a gp pointer too. | |
3957 | Exception: Undefined PLABELs should have a value of | |
3958 | zero. */ | |
875c0872 | 3959 | if (hh == NULL |
a63e02c7 DA |
3960 | || (hh->eh.root.type != bfd_link_hash_undefweak |
3961 | && hh->eh.root.type != bfd_link_hash_undefined)) | |
74d1c347 AM |
3962 | { |
3963 | relocation = (off | |
83c81bfe AM |
3964 | + htab->splt->output_offset |
3965 | + htab->splt->output_section->vma | |
74d1c347 AM |
3966 | + 2); |
3967 | } | |
3968 | plabel = 1; | |
30667bf3 AM |
3969 | } |
3970 | /* Fall through and possibly emit a dynamic relocation. */ | |
3971 | ||
3972 | case R_PARISC_DIR17F: | |
3973 | case R_PARISC_DIR17R: | |
47d89dba | 3974 | case R_PARISC_DIR14F: |
30667bf3 AM |
3975 | case R_PARISC_DIR14R: |
3976 | case R_PARISC_DIR21L: | |
3977 | case R_PARISC_DPREL14F: | |
3978 | case R_PARISC_DPREL14R: | |
3979 | case R_PARISC_DPREL21L: | |
3980 | case R_PARISC_DIR32: | |
b1e24c02 | 3981 | if ((input_section->flags & SEC_ALLOC) == 0) |
ec338859 AM |
3982 | break; |
3983 | ||
30667bf3 | 3984 | /* The reloc types handled here and this conditional |
56882138 | 3985 | expression must match the code in ..check_relocs and |
ec338859 | 3986 | allocate_dynrelocs. ie. We need exactly the same condition |
56882138 AM |
3987 | as in ..check_relocs, with some extra conditions (dynindx |
3988 | test in this case) to cater for relocs removed by | |
ec338859 | 3989 | allocate_dynrelocs. If you squint, the non-shared test |
56882138 AM |
3990 | here does indeed match the one in ..check_relocs, the |
3991 | difference being that here we test DEF_DYNAMIC as well as | |
3992 | !DEF_REGULAR. All common syms end up with !DEF_REGULAR, | |
3993 | which is why we can't use just that test here. | |
3994 | Conversely, DEF_DYNAMIC can't be used in check_relocs as | |
3995 | there all files have not been loaded. */ | |
446f2863 | 3996 | if ((info->shared |
875c0872 | 3997 | && (hh == NULL |
a63e02c7 DA |
3998 | || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT |
3999 | || hh->eh.root.type != bfd_link_hash_undefweak) | |
446f2863 | 4000 | && (IS_ABSOLUTE_RELOC (r_type) |
a63e02c7 | 4001 | || !SYMBOL_CALLS_LOCAL (info, &hh->eh))) |
446f2863 | 4002 | || (!info->shared |
875c0872 | 4003 | && hh != NULL |
a63e02c7 DA |
4004 | && hh->eh.dynindx != -1 |
4005 | && !hh->eh.non_got_ref | |
4fc8051d | 4006 | && ((ELIMINATE_COPY_RELOCS |
a63e02c7 DA |
4007 | && hh->eh.def_dynamic |
4008 | && !hh->eh.def_regular) | |
4009 | || hh->eh.root.type == bfd_link_hash_undefweak | |
4010 | || hh->eh.root.type == bfd_link_hash_undefined))) | |
30667bf3 AM |
4011 | { |
4012 | Elf_Internal_Rela outrel; | |
b34976b6 | 4013 | bfd_boolean skip; |
98ceb8ce | 4014 | asection *sreloc; |
947216bf | 4015 | bfd_byte *loc; |
252b5132 | 4016 | |
30667bf3 AM |
4017 | /* When generating a shared object, these relocations |
4018 | are copied into the output file to be resolved at run | |
4019 | time. */ | |
252b5132 | 4020 | |
875c0872 | 4021 | outrel.r_addend = rela->r_addend; |
c629eae0 JJ |
4022 | outrel.r_offset = |
4023 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
875c0872 | 4024 | rela->r_offset); |
0bb2d96a JJ |
4025 | skip = (outrel.r_offset == (bfd_vma) -1 |
4026 | || outrel.r_offset == (bfd_vma) -2); | |
30667bf3 AM |
4027 | outrel.r_offset += (input_section->output_offset |
4028 | + input_section->output_section->vma); | |
875c0872 | 4029 | |
30667bf3 | 4030 | if (skip) |
252b5132 | 4031 | { |
30667bf3 | 4032 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 4033 | } |
875c0872 | 4034 | else if (hh != NULL |
a63e02c7 | 4035 | && hh->eh.dynindx != -1 |
74d1c347 | 4036 | && (plabel |
446f2863 AM |
4037 | || !IS_ABSOLUTE_RELOC (r_type) |
4038 | || !info->shared | |
74d1c347 | 4039 | || !info->symbolic |
a63e02c7 | 4040 | || !hh->eh.def_regular)) |
252b5132 | 4041 | { |
a63e02c7 | 4042 | outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type); |
30667bf3 AM |
4043 | } |
4044 | else /* It's a local symbol, or one marked to become local. */ | |
4045 | { | |
4046 | int indx = 0; | |
edd21aca | 4047 | |
30667bf3 AM |
4048 | /* Add the absolute offset of the symbol. */ |
4049 | outrel.r_addend += relocation; | |
edd21aca | 4050 | |
74d1c347 AM |
4051 | /* Global plabels need to be processed by the |
4052 | dynamic linker so that functions have at most one | |
4053 | fptr. For this reason, we need to differentiate | |
4054 | between global and local plabels, which we do by | |
4055 | providing the function symbol for a global plabel | |
4056 | reloc, and no symbol for local plabels. */ | |
4057 | if (! plabel | |
4058 | && sym_sec != NULL | |
30667bf3 AM |
4059 | && sym_sec->output_section != NULL |
4060 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 4061 | { |
74541ad4 AM |
4062 | asection *osec; |
4063 | ||
4064 | osec = sym_sec->output_section; | |
4065 | indx = elf_section_data (osec)->dynindx; | |
4066 | if (indx == 0) | |
4067 | { | |
4068 | osec = htab->etab.text_index_section; | |
4069 | indx = elf_section_data (osec)->dynindx; | |
4070 | } | |
4071 | BFD_ASSERT (indx != 0); | |
4b71bec0 | 4072 | |
30667bf3 AM |
4073 | /* We are turning this relocation into one |
4074 | against a section symbol, so subtract out the | |
4075 | output section's address but not the offset | |
4076 | of the input section in the output section. */ | |
74541ad4 | 4077 | outrel.r_addend -= osec->vma; |
252b5132 | 4078 | } |
252b5132 | 4079 | |
30667bf3 AM |
4080 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
4081 | } | |
98ceb8ce AM |
4082 | sreloc = elf_section_data (input_section)->sreloc; |
4083 | if (sreloc == NULL) | |
4084 | abort (); | |
4085 | ||
947216bf AM |
4086 | loc = sreloc->contents; |
4087 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
98ceb8ce | 4088 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
30667bf3 AM |
4089 | } |
4090 | break; | |
9b52905e NC |
4091 | |
4092 | case R_PARISC_TLS_LDM21L: | |
4093 | case R_PARISC_TLS_LDM14R: | |
4094 | { | |
4095 | bfd_vma off; | |
4096 | ||
4097 | off = htab->tls_ldm_got.offset; | |
4098 | if (off & 1) | |
4099 | off &= ~1; | |
4100 | else | |
4101 | { | |
4102 | Elf_Internal_Rela outrel; | |
4103 | bfd_byte *loc; | |
4104 | ||
4105 | outrel.r_offset = (off | |
4106 | + htab->sgot->output_section->vma | |
4107 | + htab->sgot->output_offset); | |
4108 | outrel.r_addend = 0; | |
4109 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32); | |
4110 | loc = htab->srelgot->contents; | |
4111 | loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
4112 | ||
4113 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
4114 | htab->tls_ldm_got.offset |= 1; | |
4115 | } | |
4116 | ||
4117 | /* Add the base of the GOT to the relocation value. */ | |
4118 | relocation = (off | |
4119 | + htab->sgot->output_offset | |
4120 | + htab->sgot->output_section->vma); | |
4121 | ||
4122 | break; | |
4123 | } | |
4124 | ||
4125 | case R_PARISC_TLS_LDO21L: | |
4126 | case R_PARISC_TLS_LDO14R: | |
4127 | relocation -= dtpoff_base (info); | |
4128 | break; | |
4129 | ||
4130 | case R_PARISC_TLS_GD21L: | |
4131 | case R_PARISC_TLS_GD14R: | |
4132 | case R_PARISC_TLS_IE21L: | |
4133 | case R_PARISC_TLS_IE14R: | |
4134 | { | |
4135 | bfd_vma off; | |
4136 | int indx; | |
4137 | char tls_type; | |
4138 | ||
4139 | indx = 0; | |
4140 | if (hh != NULL) | |
4141 | { | |
4142 | bfd_boolean dyn; | |
4143 | dyn = htab->etab.dynamic_sections_created; | |
4144 | ||
4145 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh) | |
4146 | && (!info->shared | |
4147 | || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh))) | |
4148 | { | |
4149 | indx = hh->eh.dynindx; | |
4150 | } | |
4151 | off = hh->eh.got.offset; | |
4152 | tls_type = hh->tls_type; | |
4153 | } | |
4154 | else | |
4155 | { | |
4156 | off = local_got_offsets[r_symndx]; | |
4157 | tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx]; | |
4158 | } | |
4159 | ||
4160 | if (tls_type == GOT_UNKNOWN) | |
4161 | abort (); | |
4162 | ||
4163 | if ((off & 1) != 0) | |
4164 | off &= ~1; | |
4165 | else | |
4166 | { | |
4167 | bfd_boolean need_relocs = FALSE; | |
4168 | Elf_Internal_Rela outrel; | |
4169 | bfd_byte *loc = NULL; | |
4170 | int cur_off = off; | |
4171 | ||
4172 | /* The GOT entries have not been initialized yet. Do it | |
4173 | now, and emit any relocations. If both an IE GOT and a | |
4174 | GD GOT are necessary, we emit the GD first. */ | |
4175 | ||
4176 | if ((info->shared || indx != 0) | |
4177 | && (hh == NULL | |
4178 | || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT | |
4179 | || hh->eh.root.type != bfd_link_hash_undefweak)) | |
4180 | { | |
4181 | need_relocs = TRUE; | |
4182 | loc = htab->srelgot->contents; | |
4183 | /* FIXME (CAO): Should this be reloc_count++ ? */ | |
4184 | loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela); | |
4185 | } | |
4186 | ||
4187 | if (tls_type & GOT_TLS_GD) | |
4188 | { | |
4189 | if (need_relocs) | |
4190 | { | |
4191 | outrel.r_offset = (cur_off | |
4192 | + htab->sgot->output_section->vma | |
4193 | + htab->sgot->output_offset); | |
4194 | outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32); | |
4195 | outrel.r_addend = 0; | |
4196 | bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off); | |
4197 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
4198 | htab->srelgot->reloc_count++; | |
4199 | loc += sizeof (Elf32_External_Rela); | |
4200 | ||
4201 | if (indx == 0) | |
4202 | bfd_put_32 (output_bfd, relocation - dtpoff_base (info), | |
4203 | htab->sgot->contents + cur_off + 4); | |
4204 | else | |
4205 | { | |
4206 | bfd_put_32 (output_bfd, 0, | |
4207 | htab->sgot->contents + cur_off + 4); | |
4208 | outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32); | |
4209 | outrel.r_offset += 4; | |
4210 | bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc); | |
4211 | htab->srelgot->reloc_count++; | |
4212 | loc += sizeof (Elf32_External_Rela); | |
4213 | } | |
4214 | } | |
4215 | else | |
4216 | { | |
4217 | /* If we are not emitting relocations for a | |
4218 | general dynamic reference, then we must be in a | |
4219 | static link or an executable link with the | |
4220 | symbol binding locally. Mark it as belonging | |
4221 | to module 1, the executable. */ | |
4222 | bfd_put_32 (output_bfd, 1, | |
4223 | htab->sgot->contents + cur_off); | |
4224 | bfd_put_32 (output_bfd, relocation - dtpoff_base (info), | |
4225 | htab->sgot->contents + cur_off + 4); | |
4226 | } | |
4227 | ||
4228 | ||
4229 | cur_off += 8; | |
4230 | } | |
4231 | ||
4232 | if (tls_type & GOT_TLS_IE) | |
4233 | { | |
4234 | if (need_relocs) | |
4235 | { | |
4236 | outrel.r_offset = (cur_off | |
4237 | + htab->sgot->output_section->vma | |
4238 | + htab->sgot->output_offset); | |
4239 | outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32); | |
4240 | ||
4241 | if (indx == 0) | |
4242 | outrel.r_addend = relocation - dtpoff_base (info); | |
4243 | else | |
4244 | outrel.r_addend = 0; | |
4245 | ||
4246 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
4247 | htab->srelgot->reloc_count++; | |
4248 | loc += sizeof (Elf32_External_Rela); | |
4249 | } | |
4250 | else | |
4251 | bfd_put_32 (output_bfd, tpoff (info, relocation), | |
4252 | htab->sgot->contents + cur_off); | |
4253 | ||
4254 | cur_off += 4; | |
4255 | } | |
4256 | ||
4257 | if (hh != NULL) | |
4258 | hh->eh.got.offset |= 1; | |
4259 | else | |
4260 | local_got_offsets[r_symndx] |= 1; | |
4261 | } | |
4262 | ||
4263 | if ((tls_type & GOT_TLS_GD) | |
4264 | && r_type != R_PARISC_TLS_GD21L | |
4265 | && r_type != R_PARISC_TLS_GD14R) | |
4266 | off += 2 * GOT_ENTRY_SIZE; | |
4267 | ||
4268 | /* Add the base of the GOT to the relocation value. */ | |
4269 | relocation = (off | |
4270 | + htab->sgot->output_offset | |
4271 | + htab->sgot->output_section->vma); | |
4272 | ||
4273 | break; | |
4274 | } | |
4275 | ||
4276 | case R_PARISC_TLS_LE21L: | |
4277 | case R_PARISC_TLS_LE14R: | |
4278 | { | |
4279 | relocation = tpoff (info, relocation); | |
4280 | break; | |
4281 | } | |
4282 | break; | |
edd21aca | 4283 | |
30667bf3 AM |
4284 | default: |
4285 | break; | |
4286 | } | |
252b5132 | 4287 | |
875c0872 DA |
4288 | rstatus = final_link_relocate (input_section, contents, rela, relocation, |
4289 | htab, sym_sec, hh, info); | |
252b5132 | 4290 | |
875c0872 | 4291 | if (rstatus == bfd_reloc_ok) |
30667bf3 | 4292 | continue; |
252b5132 | 4293 | |
875c0872 | 4294 | if (hh != NULL) |
9b52905e | 4295 | sym_name = hh_name (hh); |
30667bf3 AM |
4296 | else |
4297 | { | |
4298 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
4299 | symtab_hdr->sh_link, | |
4300 | sym->st_name); | |
4301 | if (sym_name == NULL) | |
b34976b6 | 4302 | return FALSE; |
30667bf3 AM |
4303 | if (*sym_name == '\0') |
4304 | sym_name = bfd_section_name (input_bfd, sym_sec); | |
4305 | } | |
edd21aca | 4306 | |
30667bf3 | 4307 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 4308 | |
875c0872 | 4309 | if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported) |
30667bf3 | 4310 | { |
875c0872 | 4311 | if (rstatus == bfd_reloc_notsupported || !warned_undef) |
f09ebc7d AM |
4312 | { |
4313 | (*_bfd_error_handler) | |
d003868e AM |
4314 | (_("%B(%A+0x%lx): cannot handle %s for %s"), |
4315 | input_bfd, | |
4316 | input_section, | |
875c0872 | 4317 | (long) rela->r_offset, |
f09ebc7d AM |
4318 | howto->name, |
4319 | sym_name); | |
4320 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 4321 | return FALSE; |
f09ebc7d | 4322 | } |
30667bf3 AM |
4323 | } |
4324 | else | |
4325 | { | |
4326 | if (!((*info->callbacks->reloc_overflow) | |
a63e02c7 | 4327 | (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name, |
875c0872 | 4328 | (bfd_vma) 0, input_bfd, input_section, rela->r_offset))) |
b34976b6 | 4329 | return FALSE; |
30667bf3 AM |
4330 | } |
4331 | } | |
edd21aca | 4332 | |
b34976b6 | 4333 | return TRUE; |
30667bf3 | 4334 | } |
252b5132 | 4335 | |
30667bf3 AM |
4336 | /* Finish up dynamic symbol handling. We set the contents of various |
4337 | dynamic sections here. */ | |
252b5132 | 4338 | |
b34976b6 | 4339 | static bfd_boolean |
c39a58e6 AM |
4340 | elf32_hppa_finish_dynamic_symbol (bfd *output_bfd, |
4341 | struct bfd_link_info *info, | |
875c0872 | 4342 | struct elf_link_hash_entry *eh, |
c39a58e6 | 4343 | Elf_Internal_Sym *sym) |
30667bf3 | 4344 | { |
83c81bfe | 4345 | struct elf32_hppa_link_hash_table *htab; |
875c0872 | 4346 | Elf_Internal_Rela rela; |
a252afa4 | 4347 | bfd_byte *loc; |
edd21aca | 4348 | |
83c81bfe | 4349 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
4350 | if (htab == NULL) |
4351 | return FALSE; | |
30667bf3 | 4352 | |
875c0872 | 4353 | if (eh->plt.offset != (bfd_vma) -1) |
30667bf3 AM |
4354 | { |
4355 | bfd_vma value; | |
30667bf3 | 4356 | |
875c0872 | 4357 | if (eh->plt.offset & 1) |
8dea1268 AM |
4358 | abort (); |
4359 | ||
30667bf3 AM |
4360 | /* This symbol has an entry in the procedure linkage table. Set |
4361 | it up. | |
4362 | ||
4363 | The format of a plt entry is | |
74d1c347 AM |
4364 | <funcaddr> |
4365 | <__gp> | |
47d89dba | 4366 | */ |
30667bf3 | 4367 | value = 0; |
875c0872 DA |
4368 | if (eh->root.type == bfd_link_hash_defined |
4369 | || eh->root.type == bfd_link_hash_defweak) | |
30667bf3 | 4370 | { |
875c0872 DA |
4371 | value = eh->root.u.def.value; |
4372 | if (eh->root.u.def.section->output_section != NULL) | |
4373 | value += (eh->root.u.def.section->output_offset | |
4374 | + eh->root.u.def.section->output_section->vma); | |
252b5132 | 4375 | } |
edd21aca | 4376 | |
a252afa4 | 4377 | /* Create a dynamic IPLT relocation for this entry. */ |
875c0872 | 4378 | rela.r_offset = (eh->plt.offset |
a252afa4 DA |
4379 | + htab->splt->output_offset |
4380 | + htab->splt->output_section->vma); | |
875c0872 | 4381 | if (eh->dynindx != -1) |
30667bf3 | 4382 | { |
875c0872 DA |
4383 | rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT); |
4384 | rela.r_addend = 0; | |
30667bf3 | 4385 | } |
ce757d15 | 4386 | else |
47d89dba | 4387 | { |
a252afa4 DA |
4388 | /* This symbol has been marked to become local, and is |
4389 | used by a plabel so must be kept in the .plt. */ | |
875c0872 DA |
4390 | rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); |
4391 | rela.r_addend = value; | |
47d89dba AM |
4392 | } |
4393 | ||
a252afa4 DA |
4394 | loc = htab->srelplt->contents; |
4395 | loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela); | |
875c0872 | 4396 | bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc); |
a252afa4 | 4397 | |
875c0872 | 4398 | if (!eh->def_regular) |
30667bf3 AM |
4399 | { |
4400 | /* Mark the symbol as undefined, rather than as defined in | |
4401 | the .plt section. Leave the value alone. */ | |
4402 | sym->st_shndx = SHN_UNDEF; | |
4403 | } | |
4404 | } | |
edd21aca | 4405 | |
9b52905e NC |
4406 | if (eh->got.offset != (bfd_vma) -1 |
4407 | && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0 | |
4408 | && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0) | |
30667bf3 | 4409 | { |
30667bf3 AM |
4410 | /* This symbol has an entry in the global offset table. Set it |
4411 | up. */ | |
4412 | ||
875c0872 | 4413 | rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1) |
83c81bfe AM |
4414 | + htab->sgot->output_offset |
4415 | + htab->sgot->output_section->vma); | |
30667bf3 | 4416 | |
4dc86686 AM |
4417 | /* If this is a -Bsymbolic link and the symbol is defined |
4418 | locally or was forced to be local because of a version file, | |
4419 | we just want to emit a RELATIVE reloc. The entry in the | |
4420 | global offset table will already have been initialized in the | |
4421 | relocate_section function. */ | |
4422 | if (info->shared | |
875c0872 DA |
4423 | && (info->symbolic || eh->dynindx == -1) |
4424 | && eh->def_regular) | |
30667bf3 | 4425 | { |
875c0872 DA |
4426 | rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
4427 | rela.r_addend = (eh->root.u.def.value | |
4428 | + eh->root.u.def.section->output_offset | |
4429 | + eh->root.u.def.section->output_section->vma); | |
30667bf3 AM |
4430 | } |
4431 | else | |
4432 | { | |
875c0872 | 4433 | if ((eh->got.offset & 1) != 0) |
49e9d0d3 | 4434 | abort (); |
875c0872 DA |
4435 | |
4436 | bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1)); | |
4437 | rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32); | |
4438 | rela.r_addend = 0; | |
30667bf3 | 4439 | } |
edd21aca | 4440 | |
947216bf AM |
4441 | loc = htab->srelgot->contents; |
4442 | loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
875c0872 | 4443 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); |
30667bf3 | 4444 | } |
edd21aca | 4445 | |
875c0872 | 4446 | if (eh->needs_copy) |
30667bf3 | 4447 | { |
875c0872 | 4448 | asection *sec; |
30667bf3 AM |
4449 | |
4450 | /* This symbol needs a copy reloc. Set it up. */ | |
4451 | ||
875c0872 DA |
4452 | if (! (eh->dynindx != -1 |
4453 | && (eh->root.type == bfd_link_hash_defined | |
4454 | || eh->root.type == bfd_link_hash_defweak))) | |
49e9d0d3 | 4455 | abort (); |
30667bf3 | 4456 | |
875c0872 | 4457 | sec = htab->srelbss; |
30667bf3 | 4458 | |
875c0872 DA |
4459 | rela.r_offset = (eh->root.u.def.value |
4460 | + eh->root.u.def.section->output_offset | |
4461 | + eh->root.u.def.section->output_section->vma); | |
4462 | rela.r_addend = 0; | |
4463 | rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY); | |
4464 | loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela); | |
4465 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
30667bf3 AM |
4466 | } |
4467 | ||
4468 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
9b52905e NC |
4469 | if (eh_name (eh)[0] == '_' |
4470 | && (strcmp (eh_name (eh), "_DYNAMIC") == 0 | |
22edb2f1 | 4471 | || eh == htab->etab.hgot)) |
30667bf3 AM |
4472 | { |
4473 | sym->st_shndx = SHN_ABS; | |
4474 | } | |
4475 | ||
b34976b6 | 4476 | return TRUE; |
30667bf3 AM |
4477 | } |
4478 | ||
98ceb8ce AM |
4479 | /* Used to decide how to sort relocs in an optimal manner for the |
4480 | dynamic linker, before writing them out. */ | |
4481 | ||
4482 | static enum elf_reloc_type_class | |
c39a58e6 | 4483 | elf32_hppa_reloc_type_class (const Elf_Internal_Rela *rela) |
98ceb8ce | 4484 | { |
9b52905e NC |
4485 | /* Handle TLS relocs first; we don't want them to be marked |
4486 | relative by the "if (ELF32_R_SYM (rela->r_info) == 0)" | |
4487 | check below. */ | |
4488 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4489 | { | |
4490 | case R_PARISC_TLS_DTPMOD32: | |
4491 | case R_PARISC_TLS_DTPOFF32: | |
4492 | case R_PARISC_TLS_TPREL32: | |
4493 | return reloc_class_normal; | |
4494 | } | |
4495 | ||
98ceb8ce AM |
4496 | if (ELF32_R_SYM (rela->r_info) == 0) |
4497 | return reloc_class_relative; | |
4498 | ||
4499 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4500 | { | |
4501 | case R_PARISC_IPLT: | |
4502 | return reloc_class_plt; | |
4503 | case R_PARISC_COPY: | |
4504 | return reloc_class_copy; | |
4505 | default: | |
4506 | return reloc_class_normal; | |
4507 | } | |
4508 | } | |
4509 | ||
30667bf3 AM |
4510 | /* Finish up the dynamic sections. */ |
4511 | ||
b34976b6 | 4512 | static bfd_boolean |
c39a58e6 AM |
4513 | elf32_hppa_finish_dynamic_sections (bfd *output_bfd, |
4514 | struct bfd_link_info *info) | |
30667bf3 AM |
4515 | { |
4516 | bfd *dynobj; | |
83c81bfe | 4517 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
4518 | asection *sdyn; |
4519 | ||
83c81bfe | 4520 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
4521 | if (htab == NULL) |
4522 | return FALSE; | |
4523 | ||
a63e02c7 | 4524 | dynobj = htab->etab.dynobj; |
30667bf3 AM |
4525 | |
4526 | sdyn = bfd_get_section_by_name (dynobj, ".dynamic"); | |
4527 | ||
a63e02c7 | 4528 | if (htab->etab.dynamic_sections_created) |
30667bf3 AM |
4529 | { |
4530 | Elf32_External_Dyn *dyncon, *dynconend; | |
4531 | ||
49e9d0d3 AM |
4532 | if (sdyn == NULL) |
4533 | abort (); | |
30667bf3 AM |
4534 | |
4535 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 4536 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
30667bf3 | 4537 | for (; dyncon < dynconend; dyncon++) |
edd21aca | 4538 | { |
30667bf3 AM |
4539 | Elf_Internal_Dyn dyn; |
4540 | asection *s; | |
4541 | ||
4542 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4543 | ||
4544 | switch (dyn.d_tag) | |
4545 | { | |
4546 | default: | |
3ac8354b | 4547 | continue; |
30667bf3 AM |
4548 | |
4549 | case DT_PLTGOT: | |
4550 | /* Use PLTGOT to set the GOT register. */ | |
4551 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
30667bf3 AM |
4552 | break; |
4553 | ||
4554 | case DT_JMPREL: | |
83c81bfe | 4555 | s = htab->srelplt; |
30667bf3 | 4556 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
30667bf3 AM |
4557 | break; |
4558 | ||
4559 | case DT_PLTRELSZ: | |
83c81bfe | 4560 | s = htab->srelplt; |
eea6121a | 4561 | dyn.d_un.d_val = s->size; |
30667bf3 | 4562 | break; |
4e12ff7f AM |
4563 | |
4564 | case DT_RELASZ: | |
4565 | /* Don't count procedure linkage table relocs in the | |
4566 | overall reloc count. */ | |
6348e046 AM |
4567 | s = htab->srelplt; |
4568 | if (s == NULL) | |
4569 | continue; | |
eea6121a | 4570 | dyn.d_un.d_val -= s->size; |
6348e046 AM |
4571 | break; |
4572 | ||
4573 | case DT_RELA: | |
4574 | /* We may not be using the standard ELF linker script. | |
4575 | If .rela.plt is the first .rela section, we adjust | |
4576 | DT_RELA to not include it. */ | |
4577 | s = htab->srelplt; | |
4578 | if (s == NULL) | |
4579 | continue; | |
4580 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
4581 | continue; | |
eea6121a | 4582 | dyn.d_un.d_ptr += s->size; |
4e12ff7f | 4583 | break; |
30667bf3 | 4584 | } |
3ac8354b AM |
4585 | |
4586 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
edd21aca | 4587 | } |
252b5132 | 4588 | } |
edd21aca | 4589 | |
eea6121a | 4590 | if (htab->sgot != NULL && htab->sgot->size != 0) |
30667bf3 | 4591 | { |
74d1c347 AM |
4592 | /* Fill in the first entry in the global offset table. |
4593 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 | 4594 | bfd_put_32 (output_bfd, |
c39a58e6 | 4595 | sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0, |
83c81bfe | 4596 | htab->sgot->contents); |
30667bf3 | 4597 | |
74d1c347 | 4598 | /* The second entry is reserved for use by the dynamic linker. */ |
83c81bfe | 4599 | memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4600 | |
30667bf3 | 4601 | /* Set .got entry size. */ |
83c81bfe | 4602 | elf_section_data (htab->sgot->output_section) |
74d1c347 | 4603 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; |
30667bf3 AM |
4604 | } |
4605 | ||
eea6121a | 4606 | if (htab->splt != NULL && htab->splt->size != 0) |
47d89dba AM |
4607 | { |
4608 | /* Set plt entry size. */ | |
83c81bfe | 4609 | elf_section_data (htab->splt->output_section) |
47d89dba AM |
4610 | ->this_hdr.sh_entsize = PLT_ENTRY_SIZE; |
4611 | ||
83c81bfe | 4612 | if (htab->need_plt_stub) |
47d89dba AM |
4613 | { |
4614 | /* Set up the .plt stub. */ | |
83c81bfe | 4615 | memcpy (htab->splt->contents |
eea6121a | 4616 | + htab->splt->size - sizeof (plt_stub), |
47d89dba AM |
4617 | plt_stub, sizeof (plt_stub)); |
4618 | ||
83c81bfe AM |
4619 | if ((htab->splt->output_offset |
4620 | + htab->splt->output_section->vma | |
eea6121a | 4621 | + htab->splt->size) |
83c81bfe AM |
4622 | != (htab->sgot->output_offset |
4623 | + htab->sgot->output_section->vma)) | |
47d89dba AM |
4624 | { |
4625 | (*_bfd_error_handler) | |
4626 | (_(".got section not immediately after .plt section")); | |
b34976b6 | 4627 | return FALSE; |
47d89dba AM |
4628 | } |
4629 | } | |
4630 | } | |
30667bf3 | 4631 | |
b34976b6 | 4632 | return TRUE; |
30667bf3 | 4633 | } |
252b5132 | 4634 | |
30667bf3 AM |
4635 | /* Called when writing out an object file to decide the type of a |
4636 | symbol. */ | |
4637 | static int | |
c39a58e6 | 4638 | elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type) |
30667bf3 AM |
4639 | { |
4640 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4641 | return STT_PARISC_MILLI; | |
4642 | else | |
4643 | return type; | |
252b5132 RH |
4644 | } |
4645 | ||
4646 | /* Misc BFD support code. */ | |
30667bf3 AM |
4647 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4648 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
0c8d6e5c | 4649 | #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup |
30667bf3 AM |
4650 | #define elf_info_to_howto elf_hppa_info_to_howto |
4651 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4652 | |
252b5132 | 4653 | /* Stuff for the BFD linker. */ |
0c8d6e5c | 4654 | #define bfd_elf32_mkobject elf32_hppa_mkobject |
c46b7515 | 4655 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 | 4656 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
e2d34d7d | 4657 | #define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free |
30667bf3 | 4658 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol |
ebe50bae | 4659 | #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol |
30667bf3 AM |
4660 | #define elf_backend_check_relocs elf32_hppa_check_relocs |
4661 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections | |
4662 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4663 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4664 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4665 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4666 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4667 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
74541ad4 | 4668 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
30667bf3 AM |
4669 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook |
4670 | #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook | |
edfc032f AM |
4671 | #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus |
4672 | #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo | |
30667bf3 AM |
4673 | #define elf_backend_object_p elf32_hppa_object_p |
4674 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
d1036acb | 4675 | #define elf_backend_post_process_headers _bfd_elf_set_osabi |
30667bf3 | 4676 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type |
98ceb8ce | 4677 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
8a696751 | 4678 | #define elf_backend_action_discarded elf_hppa_action_discarded |
30667bf3 AM |
4679 | |
4680 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4681 | #define elf_backend_can_refcount 1 |
30667bf3 AM |
4682 | #define elf_backend_plt_alignment 2 |
4683 | #define elf_backend_want_got_plt 0 | |
4684 | #define elf_backend_plt_readonly 0 | |
4685 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4686 | #define elf_backend_got_header_size 8 |
f0fe0e16 | 4687 | #define elf_backend_rela_normal 1 |
252b5132 RH |
4688 | |
4689 | #define TARGET_BIG_SYM bfd_elf32_hppa_vec | |
4690 | #define TARGET_BIG_NAME "elf32-hppa" | |
4691 | #define ELF_ARCH bfd_arch_hppa | |
4692 | #define ELF_MACHINE_CODE EM_PARISC | |
4693 | #define ELF_MAXPAGESIZE 0x1000 | |
d1036acb | 4694 | #define ELF_OSABI ELFOSABI_HPUX |
914dfb0f | 4695 | #define elf32_bed elf32_hppa_hpux_bed |
252b5132 RH |
4696 | |
4697 | #include "elf32-target.h" | |
d952f17a AM |
4698 | |
4699 | #undef TARGET_BIG_SYM | |
914dfb0f | 4700 | #define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec |
d952f17a | 4701 | #undef TARGET_BIG_NAME |
914dfb0f | 4702 | #define TARGET_BIG_NAME "elf32-hppa-linux" |
d1036acb L |
4703 | #undef ELF_OSABI |
4704 | #define ELF_OSABI ELFOSABI_LINUX | |
914dfb0f DA |
4705 | #undef elf32_bed |
4706 | #define elf32_bed elf32_hppa_linux_bed | |
d952f17a | 4707 | |
d952f17a | 4708 | #include "elf32-target.h" |
225247f0 JT |
4709 | |
4710 | #undef TARGET_BIG_SYM | |
914dfb0f | 4711 | #define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec |
225247f0 | 4712 | #undef TARGET_BIG_NAME |
914dfb0f | 4713 | #define TARGET_BIG_NAME "elf32-hppa-netbsd" |
d1036acb L |
4714 | #undef ELF_OSABI |
4715 | #define ELF_OSABI ELFOSABI_NETBSD | |
914dfb0f DA |
4716 | #undef elf32_bed |
4717 | #define elf32_bed elf32_hppa_netbsd_bed | |
225247f0 JT |
4718 | |
4719 | #include "elf32-target.h" |