Commit | Line | Data |
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252b5132 | 1 | /* BFD back-end for HP PA-RISC ELF files. |
b3adc24a | 2 | Copyright (C) 1990-2020 Free Software Foundation, Inc. |
252b5132 | 3 | |
30667bf3 | 4 | Original code by |
252b5132 RH |
5 | Center for Software Science |
6 | Department of Computer Science | |
7 | University of Utah | |
30667bf3 | 8 | Largely rewritten by Alan Modra <alan@linuxcare.com.au> |
9b52905e NC |
9 | Naming cleanup by Carlos O'Donell <carlos@systemhalted.org> |
10 | TLS support written by Randolph Chung <tausq@debian.org> | |
68ffbac6 | 11 | |
ae9a127f | 12 | This file is part of BFD, the Binary File Descriptor library. |
252b5132 | 13 | |
ae9a127f NC |
14 | This program is free software; you can redistribute it and/or modify |
15 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 16 | the Free Software Foundation; either version 3 of the License, or |
ae9a127f | 17 | (at your option) any later version. |
252b5132 | 18 | |
ae9a127f NC |
19 | This program is distributed in the hope that it will be useful, |
20 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | GNU General Public License for more details. | |
252b5132 | 23 | |
ae9a127f NC |
24 | You should have received a copy of the GNU General Public License |
25 | along with this program; if not, write to the Free Software | |
cd123cb7 NC |
26 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
27 | MA 02110-1301, USA. */ | |
252b5132 | 28 | |
252b5132 | 29 | #include "sysdep.h" |
3db64b00 | 30 | #include "bfd.h" |
252b5132 RH |
31 | #include "libbfd.h" |
32 | #include "elf-bfd.h" | |
9e103c9c JL |
33 | #include "elf/hppa.h" |
34 | #include "libhppa.h" | |
35 | #include "elf32-hppa.h" | |
36 | #define ARCH_SIZE 32 | |
edd21aca | 37 | #include "elf32-hppa.h" |
189c6563 | 38 | #include "elf-hppa.h" |
9e103c9c | 39 | |
74d1c347 AM |
40 | /* In order to gain some understanding of code in this file without |
41 | knowing all the intricate details of the linker, note the | |
42 | following: | |
43 | ||
44 | Functions named elf32_hppa_* are called by external routines, other | |
45 | functions are only called locally. elf32_hppa_* functions appear | |
46 | in this file more or less in the order in which they are called | |
47 | from external routines. eg. elf32_hppa_check_relocs is called | |
48 | early in the link process, elf32_hppa_finish_dynamic_sections is | |
49 | one of the last functions. */ | |
50 | ||
edd21aca | 51 | /* We use two hash tables to hold information for linking PA ELF objects. |
252b5132 RH |
52 | |
53 | The first is the elf32_hppa_link_hash_table which is derived | |
54 | from the standard ELF linker hash table. We use this as a place to | |
55 | attach other hash tables and static information. | |
56 | ||
57 | The second is the stub hash table which is derived from the | |
58 | base BFD hash table. The stub hash table holds the information | |
30667bf3 AM |
59 | necessary to build the linker stubs during a link. |
60 | ||
61 | There are a number of different stubs generated by the linker. | |
62 | ||
63 | Long branch stub: | |
64 | : ldil LR'X,%r1 | |
65 | : be,n RR'X(%sr4,%r1) | |
66 | ||
67 | PIC long branch stub: | |
68 | : b,l .+8,%r1 | |
3ee1d854 AM |
69 | : addil LR'X - ($PIC_pcrel$0 - 4),%r1 |
70 | : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1) | |
30667bf3 AM |
71 | |
72 | Import stub to call shared library routine from normal object file | |
73 | (single sub-space version) | |
18338fce JDA |
74 | : addil LR'lt_ptr+ltoff,%dp ; get PLT address |
75 | : ldo RR'lt_ptr+ltoff(%r1),%r22 ; | |
76 | : ldw 0(%r22),%r21 ; get procedure entry point | |
46fe4e66 | 77 | : bv %r0(%r21) |
18338fce | 78 | : ldw 4(%r22),%r19 ; get new dlt value. |
30667bf3 AM |
79 | |
80 | Import stub to call shared library routine from shared library | |
81 | (single sub-space version) | |
18338fce JDA |
82 | : addil LR'ltoff,%r19 ; get PLT address |
83 | : ldo RR'ltoff(%r1),%r22 | |
84 | : ldw 0(%r22),%r21 ; get procedure entry point | |
46fe4e66 | 85 | : bv %r0(%r21) |
18338fce | 86 | : ldw 4(%r22),%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) | |
18338fce JDA |
90 | : addil LR'lt_ptr+ltoff,%dp ; get PLT address |
91 | : ldo RR'lt_ptr+ltoff(%r1),%r22 ; | |
92 | : ldw 0(%r22),%r21 ; get procedure entry point | |
93 | : ldsid (%r21),%r1 ; get target sid | |
94 | : ldw 4(%r22),%r19 ; get new dlt value. | |
30667bf3 AM |
95 | : mtsp %r1,%sr0 |
96 | : be 0(%sr0,%r21) ; branch to target | |
97 | : stw %rp,-24(%sp) ; save rp | |
98 | ||
99 | Import stub to call shared library routine from shared library | |
100 | (multiple sub-space support) | |
18338fce JDA |
101 | : addil LR'ltoff,%r19 ; get PLT address |
102 | : ldo RR'ltoff(%r1),%r22 | |
103 | : ldw 0(%r22),%r21 ; get procedure entry point | |
104 | : ldsid (%r21),%r1 ; get target sid | |
105 | : ldw 4(%r22),%r19 ; get new dlt value. | |
30667bf3 AM |
106 | : mtsp %r1,%sr0 |
107 | : be 0(%sr0,%r21) ; branch to target | |
108 | : stw %rp,-24(%sp) ; save rp | |
109 | ||
110 | Export stub to return from shared lib routine (multiple sub-space support) | |
111 | One of these is created for each exported procedure in a shared | |
112 | library (and stored in the shared lib). Shared lib routines are | |
113 | called via the first instruction in the export stub so that we can | |
114 | do an inter-space return. Not required for single sub-space. | |
115 | : bl,n X,%rp ; trap the return | |
116 | : nop | |
117 | : ldw -24(%sp),%rp ; restore the original rp | |
118 | : ldsid (%rp),%r1 | |
119 | : mtsp %r1,%sr0 | |
ae9a127f | 120 | : be,n 0(%sr0,%rp) ; inter-space return. */ |
30667bf3 | 121 | |
875c0872 DA |
122 | |
123 | /* Variable names follow a coding style. | |
124 | Please follow this (Apps Hungarian) style: | |
125 | ||
07d6d2b8 | 126 | Structure/Variable Prefix |
875c0872 DA |
127 | elf_link_hash_table "etab" |
128 | elf_link_hash_entry "eh" | |
68ffbac6 | 129 | |
875c0872 DA |
130 | elf32_hppa_link_hash_table "htab" |
131 | elf32_hppa_link_hash_entry "hh" | |
132 | ||
133 | bfd_hash_table "btab" | |
134 | bfd_hash_entry "bh" | |
68ffbac6 | 135 | |
875c0872 DA |
136 | bfd_hash_table containing stubs "bstab" |
137 | elf32_hppa_stub_hash_entry "hsh" | |
138 | ||
875c0872 | 139 | Always remember to use GNU Coding Style. */ |
68ffbac6 | 140 | |
30667bf3 AM |
141 | #define PLT_ENTRY_SIZE 8 |
142 | #define GOT_ENTRY_SIZE 4 | |
18338fce JDA |
143 | #define LONG_BRANCH_STUB_SIZE 8 |
144 | #define LONG_BRANCH_SHARED_STUB_SIZE 12 | |
145 | #define IMPORT_STUB_SIZE 20 | |
146 | #define IMPORT_SHARED_STUB_SIZE 32 | |
147 | #define EXPORT_STUB_SIZE 24 | |
30667bf3 AM |
148 | #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1" |
149 | ||
47d89dba AM |
150 | static const bfd_byte plt_stub[] = |
151 | { | |
18338fce JDA |
152 | 0x0e, 0x80, 0x10, 0x95, /* 1: ldw 0(%r20),%r21 */ |
153 | 0xea, 0xa0, 0xc0, 0x00, /* bv %r0(%r21) */ | |
47d89dba AM |
154 | 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */ |
155 | #define PLT_STUB_ENTRY (3*4) | |
156 | 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */ | |
157 | 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */ | |
158 | 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */ | |
159 | 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */ | |
160 | }; | |
161 | ||
30667bf3 | 162 | /* Section name for stubs is the associated section name plus this |
29942be8 NC |
163 | string. */ |
164 | #define STUB_SUFFIX ".stub" | |
30667bf3 | 165 | |
98ceb8ce AM |
166 | /* We don't need to copy certain PC- or GP-relative dynamic relocs |
167 | into a shared object's dynamic section. All the relocs of the | |
168 | limited class we are interested in, are absolute. */ | |
169 | #ifndef RELATIVE_DYNRELOCS | |
170 | #define RELATIVE_DYNRELOCS 0 | |
446f2863 | 171 | #define IS_ABSOLUTE_RELOC(r_type) 1 |
287c7eaf | 172 | #define pc_dynrelocs(hh) 0 |
30667bf3 AM |
173 | #endif |
174 | ||
4fc8051d AM |
175 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
176 | copying dynamic variables from a shared lib into an app's dynbss | |
177 | section, and instead use a dynamic relocation to point into the | |
178 | shared lib. */ | |
179 | #define ELIMINATE_COPY_RELOCS 1 | |
180 | ||
9b52905e NC |
181 | enum elf32_hppa_stub_type |
182 | { | |
30667bf3 AM |
183 | hppa_stub_long_branch, |
184 | hppa_stub_long_branch_shared, | |
185 | hppa_stub_import, | |
186 | hppa_stub_import_shared, | |
187 | hppa_stub_export, | |
188 | hppa_stub_none | |
189 | }; | |
190 | ||
9b52905e NC |
191 | struct elf32_hppa_stub_hash_entry |
192 | { | |
edd21aca | 193 | /* Base hash table entry structure. */ |
a63e02c7 | 194 | struct bfd_hash_entry bh_root; |
252b5132 | 195 | |
edd21aca AM |
196 | /* The stub section. */ |
197 | asection *stub_sec; | |
198 | ||
199 | /* Offset within stub_sec of the beginning of this stub. */ | |
30667bf3 | 200 | bfd_vma stub_offset; |
252b5132 RH |
201 | |
202 | /* Given the symbol's value and its section we can determine its final | |
203 | value when building the stubs (so the stub knows where to jump. */ | |
30667bf3 | 204 | bfd_vma target_value; |
252b5132 | 205 | asection *target_section; |
30667bf3 AM |
206 | |
207 | enum elf32_hppa_stub_type stub_type; | |
208 | ||
209 | /* The symbol table entry, if any, that this was derived from. */ | |
a63e02c7 | 210 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 | 211 | |
25f72752 AM |
212 | /* Where this stub is being called from, or, in the case of combined |
213 | stub sections, the first input section in the group. */ | |
214 | asection *id_sec; | |
252b5132 RH |
215 | }; |
216 | ||
2e684e75 AM |
217 | enum _tls_type |
218 | { | |
219 | GOT_UNKNOWN = 0, | |
220 | GOT_NORMAL = 1, | |
221 | GOT_TLS_GD = 2, | |
222 | GOT_TLS_LDM = 4, | |
223 | GOT_TLS_IE = 8 | |
224 | }; | |
225 | ||
9b52905e NC |
226 | struct elf32_hppa_link_hash_entry |
227 | { | |
a63e02c7 | 228 | struct elf_link_hash_entry eh; |
30667bf3 AM |
229 | |
230 | /* A pointer to the most recently used stub hash entry against this | |
231 | symbol. */ | |
a63e02c7 | 232 | struct elf32_hppa_stub_hash_entry *hsh_cache; |
30667bf3 | 233 | |
2e684e75 | 234 | ENUM_BITFIELD (_tls_type) tls_type : 8; |
9b52905e | 235 | |
74d1c347 AM |
236 | /* Set if this symbol is used by a plabel reloc. */ |
237 | unsigned int plabel:1; | |
30667bf3 AM |
238 | }; |
239 | ||
9b52905e NC |
240 | struct elf32_hppa_link_hash_table |
241 | { | |
252b5132 | 242 | /* The main hash table. */ |
a63e02c7 | 243 | struct elf_link_hash_table etab; |
252b5132 RH |
244 | |
245 | /* The stub hash table. */ | |
a63e02c7 | 246 | struct bfd_hash_table bstab; |
252b5132 | 247 | |
30667bf3 AM |
248 | /* Linker stub bfd. */ |
249 | bfd *stub_bfd; | |
250 | ||
30667bf3 | 251 | /* Linker call-backs. */ |
c39a58e6 AM |
252 | asection * (*add_stub_section) (const char *, asection *); |
253 | void (*layout_sections_again) (void); | |
30667bf3 | 254 | |
25f72752 AM |
255 | /* Array to keep track of which stub sections have been created, and |
256 | information on stub grouping. */ | |
9b52905e NC |
257 | struct map_stub |
258 | { | |
25f72752 AM |
259 | /* This is the section to which stubs in the group will be |
260 | attached. */ | |
261 | asection *link_sec; | |
262 | /* The stub section. */ | |
263 | asection *stub_sec; | |
25f72752 | 264 | } *stub_group; |
30667bf3 | 265 | |
b4655ea9 AM |
266 | /* Assorted information used by elf32_hppa_size_stubs. */ |
267 | unsigned int bfd_count; | |
7292b3ac | 268 | unsigned int top_index; |
b4655ea9 AM |
269 | asection **input_list; |
270 | Elf_Internal_Sym **all_local_syms; | |
271 | ||
c46b7515 AM |
272 | /* Used during a final link to store the base of the text and data |
273 | segments so that we can perform SEGREL relocations. */ | |
274 | bfd_vma text_segment_base; | |
275 | bfd_vma data_segment_base; | |
276 | ||
47d89dba AM |
277 | /* Whether we support multiple sub-spaces for shared libs. */ |
278 | unsigned int multi_subspace:1; | |
279 | ||
067fa4a6 | 280 | /* Flags set when various size branches are detected. Used to |
47d89dba AM |
281 | select suitable defaults for the stub group size. */ |
282 | unsigned int has_12bit_branch:1; | |
283 | unsigned int has_17bit_branch:1; | |
067fa4a6 | 284 | unsigned int has_22bit_branch:1; |
47d89dba AM |
285 | |
286 | /* Set if we need a .plt stub to support lazy dynamic linking. */ | |
287 | unsigned int need_plt_stub:1; | |
ec338859 | 288 | |
87d72d41 AM |
289 | /* Small local sym cache. */ |
290 | struct sym_cache sym_cache; | |
9b52905e NC |
291 | |
292 | /* Data for LDM relocations. */ | |
293 | union | |
294 | { | |
295 | bfd_signed_vma refcount; | |
296 | bfd_vma offset; | |
297 | } tls_ldm_got; | |
252b5132 RH |
298 | }; |
299 | ||
30667bf3 AM |
300 | /* Various hash macros and functions. */ |
301 | #define hppa_link_hash_table(p) \ | |
4dfe6ac6 NC |
302 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
303 | == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL) | |
252b5132 | 304 | |
875c0872 DA |
305 | #define hppa_elf_hash_entry(ent) \ |
306 | ((struct elf32_hppa_link_hash_entry *)(ent)) | |
307 | ||
308 | #define hppa_stub_hash_entry(ent) \ | |
309 | ((struct elf32_hppa_stub_hash_entry *)(ent)) | |
310 | ||
30667bf3 AM |
311 | #define hppa_stub_hash_lookup(table, string, create, copy) \ |
312 | ((struct elf32_hppa_stub_hash_entry *) \ | |
313 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
314 | ||
9b52905e NC |
315 | #define hppa_elf_local_got_tls_type(abfd) \ |
316 | ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2))) | |
317 | ||
318 | #define hh_name(hh) \ | |
319 | (hh ? hh->eh.root.root.string : "<undef>") | |
320 | ||
321 | #define eh_name(eh) \ | |
322 | (eh ? eh->root.root.string : "<undef>") | |
323 | ||
252b5132 RH |
324 | /* Assorted hash table functions. */ |
325 | ||
326 | /* Initialize an entry in the stub hash table. */ | |
327 | ||
328 | static struct bfd_hash_entry * | |
c39a58e6 AM |
329 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
330 | struct bfd_hash_table *table, | |
331 | const char *string) | |
252b5132 | 332 | { |
252b5132 RH |
333 | /* Allocate the structure if it has not already been allocated by a |
334 | subclass. */ | |
ebe50bae | 335 | if (entry == NULL) |
30667bf3 | 336 | { |
ebe50bae AM |
337 | entry = bfd_hash_allocate (table, |
338 | sizeof (struct elf32_hppa_stub_hash_entry)); | |
339 | if (entry == NULL) | |
340 | return entry; | |
30667bf3 | 341 | } |
252b5132 RH |
342 | |
343 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
344 | entry = bfd_hash_newfunc (entry, table, string); |
345 | if (entry != NULL) | |
252b5132 | 346 | { |
875c0872 | 347 | struct elf32_hppa_stub_hash_entry *hsh; |
ebe50bae | 348 | |
252b5132 | 349 | /* Initialize the local fields. */ |
875c0872 DA |
350 | hsh = hppa_stub_hash_entry (entry); |
351 | hsh->stub_sec = NULL; | |
352 | hsh->stub_offset = 0; | |
353 | hsh->target_value = 0; | |
354 | hsh->target_section = NULL; | |
355 | hsh->stub_type = hppa_stub_long_branch; | |
a63e02c7 | 356 | hsh->hh = NULL; |
875c0872 | 357 | hsh->id_sec = NULL; |
30667bf3 AM |
358 | } |
359 | ||
ebe50bae | 360 | return entry; |
30667bf3 AM |
361 | } |
362 | ||
30667bf3 AM |
363 | /* Initialize an entry in the link hash table. */ |
364 | ||
365 | static struct bfd_hash_entry * | |
c39a58e6 AM |
366 | hppa_link_hash_newfunc (struct bfd_hash_entry *entry, |
367 | struct bfd_hash_table *table, | |
368 | const char *string) | |
30667bf3 | 369 | { |
30667bf3 AM |
370 | /* Allocate the structure if it has not already been allocated by a |
371 | subclass. */ | |
ebe50bae | 372 | if (entry == NULL) |
30667bf3 | 373 | { |
ebe50bae AM |
374 | entry = bfd_hash_allocate (table, |
375 | sizeof (struct elf32_hppa_link_hash_entry)); | |
376 | if (entry == NULL) | |
377 | return entry; | |
30667bf3 AM |
378 | } |
379 | ||
380 | /* Call the allocation method of the superclass. */ | |
ebe50bae AM |
381 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); |
382 | if (entry != NULL) | |
30667bf3 | 383 | { |
875c0872 | 384 | struct elf32_hppa_link_hash_entry *hh; |
ebe50bae | 385 | |
30667bf3 | 386 | /* Initialize the local fields. */ |
875c0872 | 387 | hh = hppa_elf_hash_entry (entry); |
a63e02c7 | 388 | hh->hsh_cache = NULL; |
875c0872 | 389 | hh->plabel = 0; |
9b52905e | 390 | hh->tls_type = GOT_UNKNOWN; |
252b5132 RH |
391 | } |
392 | ||
ebe50bae | 393 | return entry; |
252b5132 RH |
394 | } |
395 | ||
68faa637 AM |
396 | /* Free the derived linker hash table. */ |
397 | ||
398 | static void | |
d495ab0d | 399 | elf32_hppa_link_hash_table_free (bfd *obfd) |
68faa637 AM |
400 | { |
401 | struct elf32_hppa_link_hash_table *htab | |
d495ab0d | 402 | = (struct elf32_hppa_link_hash_table *) obfd->link.hash; |
68faa637 AM |
403 | |
404 | bfd_hash_table_free (&htab->bstab); | |
d495ab0d | 405 | _bfd_elf_link_hash_table_free (obfd); |
68faa637 AM |
406 | } |
407 | ||
252b5132 RH |
408 | /* Create the derived linker hash table. The PA ELF port uses the derived |
409 | hash table to keep information specific to the PA ELF linker (without | |
410 | using static variables). */ | |
411 | ||
412 | static struct bfd_link_hash_table * | |
c39a58e6 | 413 | elf32_hppa_link_hash_table_create (bfd *abfd) |
252b5132 | 414 | { |
875c0872 | 415 | struct elf32_hppa_link_hash_table *htab; |
986f0783 | 416 | size_t amt = sizeof (*htab); |
252b5132 | 417 | |
7bf52ea2 | 418 | htab = bfd_zmalloc (amt); |
875c0872 | 419 | if (htab == NULL) |
252b5132 | 420 | return NULL; |
edd21aca | 421 | |
66eb6687 | 422 | if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc, |
4dfe6ac6 NC |
423 | sizeof (struct elf32_hppa_link_hash_entry), |
424 | HPPA32_ELF_DATA)) | |
252b5132 | 425 | { |
875c0872 | 426 | free (htab); |
252b5132 RH |
427 | return NULL; |
428 | } | |
edd21aca AM |
429 | |
430 | /* Init the stub hash table too. */ | |
66eb6687 AM |
431 | if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc, |
432 | sizeof (struct elf32_hppa_stub_hash_entry))) | |
d495ab0d AM |
433 | { |
434 | _bfd_elf_link_hash_table_free (abfd); | |
435 | return NULL; | |
436 | } | |
437 | htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free; | |
3084d7a2 | 438 | htab->etab.dt_pltgot_required = TRUE; |
edd21aca | 439 | |
875c0872 DA |
440 | htab->text_segment_base = (bfd_vma) -1; |
441 | htab->data_segment_base = (bfd_vma) -1; | |
a63e02c7 | 442 | return &htab->etab.root; |
252b5132 RH |
443 | } |
444 | ||
a464198b AM |
445 | /* Initialize the linker stubs BFD so that we can use it for linker |
446 | created dynamic sections. */ | |
447 | ||
448 | void | |
449 | elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info) | |
450 | { | |
451 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
452 | ||
453 | elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32; | |
454 | htab->etab.dynobj = abfd; | |
455 | } | |
456 | ||
30667bf3 AM |
457 | /* Build a name for an entry in the stub hash table. */ |
458 | ||
edd21aca | 459 | static char * |
c39a58e6 AM |
460 | hppa_stub_name (const asection *input_section, |
461 | const asection *sym_sec, | |
875c0872 DA |
462 | const struct elf32_hppa_link_hash_entry *hh, |
463 | const Elf_Internal_Rela *rela) | |
edd21aca AM |
464 | { |
465 | char *stub_name; | |
dc810e39 | 466 | bfd_size_type len; |
edd21aca | 467 | |
875c0872 | 468 | if (hh) |
30667bf3 | 469 | { |
9b52905e | 470 | len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1; |
30667bf3 AM |
471 | stub_name = bfd_malloc (len); |
472 | if (stub_name != NULL) | |
9b52905e NC |
473 | sprintf (stub_name, "%08x_%s+%x", |
474 | input_section->id & 0xffffffff, | |
475 | hh_name (hh), | |
476 | (int) rela->r_addend & 0xffffffff); | |
30667bf3 AM |
477 | } |
478 | else | |
edd21aca | 479 | { |
30667bf3 AM |
480 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
481 | stub_name = bfd_malloc (len); | |
482 | if (stub_name != NULL) | |
9b52905e NC |
483 | sprintf (stub_name, "%08x_%x:%x+%x", |
484 | input_section->id & 0xffffffff, | |
485 | sym_sec->id & 0xffffffff, | |
486 | (int) ELF32_R_SYM (rela->r_info) & 0xffffffff, | |
487 | (int) rela->r_addend & 0xffffffff); | |
edd21aca AM |
488 | } |
489 | return stub_name; | |
490 | } | |
252b5132 | 491 | |
30667bf3 AM |
492 | /* Look up an entry in the stub hash. Stub entries are cached because |
493 | creating the stub name takes a bit of time. */ | |
494 | ||
495 | static struct elf32_hppa_stub_hash_entry * | |
c39a58e6 AM |
496 | hppa_get_stub_entry (const asection *input_section, |
497 | const asection *sym_sec, | |
875c0872 DA |
498 | struct elf32_hppa_link_hash_entry *hh, |
499 | const Elf_Internal_Rela *rela, | |
c39a58e6 | 500 | struct elf32_hppa_link_hash_table *htab) |
252b5132 | 501 | { |
a63e02c7 | 502 | struct elf32_hppa_stub_hash_entry *hsh_entry; |
25f72752 AM |
503 | const asection *id_sec; |
504 | ||
505 | /* If this input section is part of a group of sections sharing one | |
506 | stub section, then use the id of the first section in the group. | |
507 | Stub names need to include a section id, as there may well be | |
508 | more than one stub used to reach say, printf, and we need to | |
509 | distinguish between them. */ | |
83c81bfe | 510 | id_sec = htab->stub_group[input_section->id].link_sec; |
215f5271 AM |
511 | if (id_sec == NULL) |
512 | return NULL; | |
edd21aca | 513 | |
a63e02c7 DA |
514 | if (hh != NULL && hh->hsh_cache != NULL |
515 | && hh->hsh_cache->hh == hh | |
516 | && hh->hsh_cache->id_sec == id_sec) | |
edd21aca | 517 | { |
a63e02c7 | 518 | hsh_entry = hh->hsh_cache; |
30667bf3 AM |
519 | } |
520 | else | |
521 | { | |
30667bf3 | 522 | char *stub_name; |
edd21aca | 523 | |
875c0872 | 524 | stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela); |
30667bf3 AM |
525 | if (stub_name == NULL) |
526 | return NULL; | |
edd21aca | 527 | |
a63e02c7 | 528 | hsh_entry = hppa_stub_hash_lookup (&htab->bstab, |
b34976b6 | 529 | stub_name, FALSE, FALSE); |
875c0872 | 530 | if (hh != NULL) |
a63e02c7 | 531 | hh->hsh_cache = hsh_entry; |
30667bf3 AM |
532 | |
533 | free (stub_name); | |
edd21aca | 534 | } |
30667bf3 | 535 | |
a63e02c7 | 536 | return hsh_entry; |
30667bf3 AM |
537 | } |
538 | ||
30667bf3 AM |
539 | /* Add a new stub entry to the stub hash. Not all fields of the new |
540 | stub entry are initialised. */ | |
541 | ||
542 | static struct elf32_hppa_stub_hash_entry * | |
c39a58e6 AM |
543 | hppa_add_stub (const char *stub_name, |
544 | asection *section, | |
545 | struct elf32_hppa_link_hash_table *htab) | |
30667bf3 | 546 | { |
25f72752 | 547 | asection *link_sec; |
30667bf3 | 548 | asection *stub_sec; |
875c0872 | 549 | struct elf32_hppa_stub_hash_entry *hsh; |
edd21aca | 550 | |
83c81bfe AM |
551 | link_sec = htab->stub_group[section->id].link_sec; |
552 | stub_sec = htab->stub_group[section->id].stub_sec; | |
30667bf3 | 553 | if (stub_sec == NULL) |
edd21aca | 554 | { |
83c81bfe | 555 | stub_sec = htab->stub_group[link_sec->id].stub_sec; |
30667bf3 AM |
556 | if (stub_sec == NULL) |
557 | { | |
d4c88bbb | 558 | size_t namelen; |
dc810e39 | 559 | bfd_size_type len; |
30667bf3 AM |
560 | char *s_name; |
561 | ||
d4c88bbb AM |
562 | namelen = strlen (link_sec->name); |
563 | len = namelen + sizeof (STUB_SUFFIX); | |
83c81bfe | 564 | s_name = bfd_alloc (htab->stub_bfd, len); |
30667bf3 AM |
565 | if (s_name == NULL) |
566 | return NULL; | |
567 | ||
d4c88bbb AM |
568 | memcpy (s_name, link_sec->name, namelen); |
569 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
83c81bfe | 570 | stub_sec = (*htab->add_stub_section) (s_name, link_sec); |
30667bf3 AM |
571 | if (stub_sec == NULL) |
572 | return NULL; | |
83c81bfe | 573 | htab->stub_group[link_sec->id].stub_sec = stub_sec; |
30667bf3 | 574 | } |
83c81bfe | 575 | htab->stub_group[section->id].stub_sec = stub_sec; |
edd21aca | 576 | } |
252b5132 | 577 | |
30667bf3 | 578 | /* Enter this entry into the linker stub hash table. */ |
a63e02c7 | 579 | hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name, |
b34976b6 | 580 | TRUE, FALSE); |
875c0872 | 581 | if (hsh == NULL) |
30667bf3 | 582 | { |
695344c0 | 583 | /* xgettext:c-format */ |
871b3ab2 | 584 | _bfd_error_handler (_("%pB: cannot create stub entry %s"), |
4eca0228 | 585 | section->owner, stub_name); |
30667bf3 | 586 | return NULL; |
edd21aca AM |
587 | } |
588 | ||
875c0872 DA |
589 | hsh->stub_sec = stub_sec; |
590 | hsh->stub_offset = 0; | |
591 | hsh->id_sec = link_sec; | |
592 | return hsh; | |
edd21aca AM |
593 | } |
594 | ||
30667bf3 AM |
595 | /* Determine the type of stub needed, if any, for a call. */ |
596 | ||
597 | static enum elf32_hppa_stub_type | |
c39a58e6 | 598 | hppa_type_of_stub (asection *input_sec, |
875c0872 DA |
599 | const Elf_Internal_Rela *rela, |
600 | struct elf32_hppa_link_hash_entry *hh, | |
a252afa4 DA |
601 | bfd_vma destination, |
602 | struct bfd_link_info *info) | |
edd21aca | 603 | { |
edd21aca | 604 | bfd_vma location; |
30667bf3 AM |
605 | bfd_vma branch_offset; |
606 | bfd_vma max_branch_offset; | |
607 | unsigned int r_type; | |
608 | ||
875c0872 | 609 | if (hh != NULL |
a63e02c7 DA |
610 | && hh->eh.plt.offset != (bfd_vma) -1 |
611 | && hh->eh.dynindx != -1 | |
875c0872 | 612 | && !hh->plabel |
0e1862bb | 613 | && (bfd_link_pic (info) |
a63e02c7 DA |
614 | || !hh->eh.def_regular |
615 | || hh->eh.root.type == bfd_link_hash_defweak)) | |
30667bf3 | 616 | { |
067fa4a6 AM |
617 | /* We need an import stub. Decide between hppa_stub_import |
618 | and hppa_stub_import_shared later. */ | |
30667bf3 AM |
619 | return hppa_stub_import; |
620 | } | |
edd21aca | 621 | |
f6a8b8c7 AM |
622 | if (destination == (bfd_vma) -1) |
623 | return hppa_stub_none; | |
624 | ||
30667bf3 AM |
625 | /* Determine where the call point is. */ |
626 | location = (input_sec->output_offset | |
627 | + input_sec->output_section->vma | |
875c0872 | 628 | + rela->r_offset); |
edd21aca | 629 | |
30667bf3 | 630 | branch_offset = destination - location - 8; |
875c0872 | 631 | r_type = ELF32_R_TYPE (rela->r_info); |
edd21aca | 632 | |
30667bf3 AM |
633 | /* Determine if a long branch stub is needed. parisc branch offsets |
634 | are relative to the second instruction past the branch, ie. +8 | |
635 | bytes on from the branch instruction location. The offset is | |
636 | signed and counts in units of 4 bytes. */ | |
637 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
9b52905e NC |
638 | max_branch_offset = (1 << (17 - 1)) << 2; |
639 | ||
30667bf3 | 640 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) |
9b52905e NC |
641 | max_branch_offset = (1 << (12 - 1)) << 2; |
642 | ||
25f72752 | 643 | else /* R_PARISC_PCREL22F. */ |
9b52905e | 644 | max_branch_offset = (1 << (22 - 1)) << 2; |
edd21aca | 645 | |
30667bf3 | 646 | if (branch_offset + max_branch_offset >= 2*max_branch_offset) |
98ceb8ce AM |
647 | return hppa_stub_long_branch; |
648 | ||
30667bf3 AM |
649 | return hppa_stub_none; |
650 | } | |
edd21aca | 651 | |
30667bf3 AM |
652 | /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY. |
653 | IN_ARG contains the link info pointer. */ | |
edd21aca | 654 | |
30667bf3 AM |
655 | #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */ |
656 | #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */ | |
edd21aca | 657 | |
30667bf3 | 658 | #define BL_R1 0xe8200000 /* b,l .+8,%r1 */ |
3ee1d854 | 659 | #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */ |
30667bf3 | 660 | #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */ |
252b5132 | 661 | |
3ee1d854 AM |
662 | #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */ |
663 | #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */ | |
30667bf3 | 664 | #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */ |
3ee1d854 | 665 | #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */ |
252b5132 | 666 | |
3ee1d854 AM |
667 | #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */ |
668 | #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */ | |
edd21aca | 669 | |
18338fce JDA |
670 | #define LDO_R1_R22 0x34360000 /* ldo RR'XXX(%r1),%r22 */ |
671 | #define LDW_R22_R21 0x0ec01095 /* ldw 0(%r22),%r21 */ | |
672 | #define LDW_R22_R19 0x0ec81093 /* ldw 4(%r22),%r19 */ | |
673 | ||
30667bf3 AM |
674 | #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */ |
675 | #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */ | |
676 | #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */ | |
677 | #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */ | |
edd21aca | 678 | |
067fa4a6 | 679 | #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */ |
30667bf3 AM |
680 | #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */ |
681 | #define NOP 0x08000240 /* nop */ | |
682 | #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */ | |
683 | #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */ | |
684 | #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */ | |
edd21aca | 685 | |
30667bf3 AM |
686 | #ifndef R19_STUBS |
687 | #define R19_STUBS 1 | |
688 | #endif | |
edd21aca | 689 | |
30667bf3 AM |
690 | #if R19_STUBS |
691 | #define LDW_R1_DLT LDW_R1_R19 | |
692 | #else | |
693 | #define LDW_R1_DLT LDW_R1_DP | |
694 | #endif | |
edd21aca | 695 | |
b34976b6 | 696 | static bfd_boolean |
875c0872 | 697 | hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg) |
30667bf3 | 698 | { |
875c0872 | 699 | struct elf32_hppa_stub_hash_entry *hsh; |
30667bf3 | 700 | struct bfd_link_info *info; |
83c81bfe | 701 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
702 | asection *stub_sec; |
703 | bfd *stub_bfd; | |
704 | bfd_byte *loc; | |
705 | bfd_vma sym_value; | |
74d1c347 | 706 | bfd_vma insn; |
8dea1268 | 707 | bfd_vma off; |
74d1c347 | 708 | int val; |
30667bf3 | 709 | int size; |
edd21aca | 710 | |
30667bf3 | 711 | /* Massage our args to the form they really have. */ |
875c0872 DA |
712 | hsh = hppa_stub_hash_entry (bh); |
713 | info = (struct bfd_link_info *)in_arg; | |
30667bf3 | 714 | |
83c81bfe | 715 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
716 | if (htab == NULL) |
717 | return FALSE; | |
718 | ||
875c0872 | 719 | stub_sec = hsh->stub_sec; |
edd21aca | 720 | |
30667bf3 | 721 | /* Make a note of the offset within the stubs for this entry. */ |
875c0872 DA |
722 | hsh->stub_offset = stub_sec->size; |
723 | loc = stub_sec->contents + hsh->stub_offset; | |
252b5132 | 724 | |
30667bf3 AM |
725 | stub_bfd = stub_sec->owner; |
726 | ||
875c0872 | 727 | switch (hsh->stub_type) |
30667bf3 AM |
728 | { |
729 | case hppa_stub_long_branch: | |
abf874aa CL |
730 | /* Fail if the target section could not be assigned to an output |
731 | section. The user should fix his linker script. */ | |
732 | if (hsh->target_section->output_section == NULL | |
733 | && info->non_contiguous_regions) | |
53215f21 CL |
734 | info->callbacks->einfo (_("%F%P: Could not assign '%pA' to an output " |
735 | "section. Retry without " | |
736 | "--enable-non-contiguous-regions.\n"), | |
737 | hsh->target_section); | |
abf874aa | 738 | |
30667bf3 AM |
739 | /* Create the long branch. A long branch is formed with "ldil" |
740 | loading the upper bits of the target address into a register, | |
741 | then branching with "be" which adds in the lower bits. | |
742 | The "be" has its delay slot nullified. */ | |
875c0872 DA |
743 | sym_value = (hsh->target_value |
744 | + hsh->target_section->output_offset | |
745 | + hsh->target_section->output_section->vma); | |
30667bf3 | 746 | |
c39a58e6 | 747 | val = hppa_field_adjust (sym_value, 0, e_lrsel); |
74d1c347 | 748 | insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21); |
30667bf3 AM |
749 | bfd_put_32 (stub_bfd, insn, loc); |
750 | ||
c39a58e6 | 751 | val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2; |
74d1c347 | 752 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 AM |
753 | bfd_put_32 (stub_bfd, insn, loc + 4); |
754 | ||
18338fce | 755 | size = LONG_BRANCH_STUB_SIZE; |
edd21aca AM |
756 | break; |
757 | ||
30667bf3 | 758 | case hppa_stub_long_branch_shared: |
abf874aa CL |
759 | /* Fail if the target section could not be assigned to an output |
760 | section. The user should fix his linker script. */ | |
761 | if (hsh->target_section->output_section == NULL | |
762 | && info->non_contiguous_regions) | |
53215f21 CL |
763 | info->callbacks->einfo (_("%F%P: Could not assign %pA to an output " |
764 | "section. Retry without " | |
765 | "--enable-non-contiguous-regions.\n"), | |
766 | hsh->target_section); | |
767 | ||
30667bf3 | 768 | /* Branches are relative. This is where we are going to. */ |
875c0872 DA |
769 | sym_value = (hsh->target_value |
770 | + hsh->target_section->output_offset | |
771 | + hsh->target_section->output_section->vma); | |
30667bf3 AM |
772 | |
773 | /* And this is where we are coming from, more or less. */ | |
875c0872 | 774 | sym_value -= (hsh->stub_offset |
30667bf3 AM |
775 | + stub_sec->output_offset |
776 | + stub_sec->output_section->vma); | |
777 | ||
74d1c347 | 778 | bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc); |
47d89dba | 779 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel); |
74d1c347 | 780 | insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21); |
30667bf3 AM |
781 | bfd_put_32 (stub_bfd, insn, loc + 4); |
782 | ||
47d89dba | 783 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2; |
74d1c347 | 784 | insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17); |
30667bf3 | 785 | bfd_put_32 (stub_bfd, insn, loc + 8); |
18338fce | 786 | size = LONG_BRANCH_SHARED_STUB_SIZE; |
30667bf3 | 787 | break; |
edd21aca | 788 | |
30667bf3 AM |
789 | case hppa_stub_import: |
790 | case hppa_stub_import_shared: | |
a63e02c7 | 791 | off = hsh->hh->eh.plt.offset; |
8dea1268 | 792 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 793 | abort (); |
8dea1268 AM |
794 | |
795 | off &= ~ (bfd_vma) 1; | |
796 | sym_value = (off | |
ce558b89 AM |
797 | + htab->etab.splt->output_offset |
798 | + htab->etab.splt->output_section->vma | |
799 | - elf_gp (htab->etab.splt->output_section->owner)); | |
30667bf3 AM |
800 | |
801 | insn = ADDIL_DP; | |
802 | #if R19_STUBS | |
875c0872 | 803 | if (hsh->stub_type == hppa_stub_import_shared) |
30667bf3 AM |
804 | insn = ADDIL_R19; |
805 | #endif | |
18338fce JDA |
806 | |
807 | /* Load function descriptor address into register %r22. It is | |
808 | sometimes needed for lazy binding. */ | |
c39a58e6 | 809 | val = hppa_field_adjust (sym_value, 0, e_lrsel), |
74d1c347 | 810 | insn = hppa_rebuild_insn ((int) insn, val, 21); |
30667bf3 | 811 | bfd_put_32 (stub_bfd, insn, loc); |
edd21aca | 812 | |
c39a58e6 | 813 | val = hppa_field_adjust (sym_value, 0, e_rrsel); |
18338fce | 814 | insn = hppa_rebuild_insn ((int) LDO_R1_R22, val, 14); |
30667bf3 | 815 | bfd_put_32 (stub_bfd, insn, loc + 4); |
252b5132 | 816 | |
18338fce JDA |
817 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_R22_R21, loc + 8); |
818 | ||
83c81bfe | 819 | if (htab->multi_subspace) |
30667bf3 | 820 | { |
74d1c347 | 821 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12); |
18338fce JDA |
822 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_R22_R19, loc + 16); |
823 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 20); | |
824 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 24); | |
825 | bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 28); | |
252b5132 | 826 | |
18338fce | 827 | size = IMPORT_SHARED_STUB_SIZE; |
30667bf3 AM |
828 | } |
829 | else | |
830 | { | |
18338fce JDA |
831 | bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 12); |
832 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_R22_R19, loc + 16); | |
252b5132 | 833 | |
18338fce | 834 | size = IMPORT_STUB_SIZE; |
30667bf3 | 835 | } |
252b5132 | 836 | |
30667bf3 | 837 | break; |
252b5132 | 838 | |
30667bf3 | 839 | case hppa_stub_export: |
abf874aa CL |
840 | /* Fail if the target section could not be assigned to an output |
841 | section. The user should fix his linker script. */ | |
842 | if (hsh->target_section->output_section == NULL | |
843 | && info->non_contiguous_regions) | |
53215f21 CL |
844 | info->callbacks->einfo (_("%F%P: Could not assign %pA to an output " |
845 | "section. Retry without " | |
846 | "--enable-non-contiguous-regions.\n"), | |
847 | hsh->target_section); | |
848 | ||
30667bf3 | 849 | /* Branches are relative. This is where we are going to. */ |
875c0872 DA |
850 | sym_value = (hsh->target_value |
851 | + hsh->target_section->output_offset | |
852 | + hsh->target_section->output_section->vma); | |
252b5132 | 853 | |
30667bf3 | 854 | /* And this is where we are coming from. */ |
875c0872 | 855 | sym_value -= (hsh->stub_offset |
30667bf3 AM |
856 | + stub_sec->output_offset |
857 | + stub_sec->output_section->vma); | |
edd21aca | 858 | |
067fa4a6 AM |
859 | if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2)) |
860 | && (!htab->has_22bit_branch | |
861 | || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2)))) | |
30667bf3 | 862 | { |
4eca0228 | 863 | _bfd_error_handler |
695344c0 | 864 | /* xgettext:c-format */ |
2dcf00ce AM |
865 | (_("%pB(%pA+%#" PRIx64 "): " |
866 | "cannot reach %s, recompile with -ffunction-sections"), | |
875c0872 | 867 | hsh->target_section->owner, |
d003868e | 868 | stub_sec, |
2dcf00ce | 869 | (uint64_t) hsh->stub_offset, |
a63e02c7 | 870 | hsh->bh_root.string); |
30667bf3 | 871 | bfd_set_error (bfd_error_bad_value); |
b34976b6 | 872 | return FALSE; |
252b5132 | 873 | } |
30667bf3 | 874 | |
74d1c347 | 875 | val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2; |
067fa4a6 AM |
876 | if (!htab->has_22bit_branch) |
877 | insn = hppa_rebuild_insn ((int) BL_RP, val, 17); | |
878 | else | |
879 | insn = hppa_rebuild_insn ((int) BL22_RP, val, 22); | |
30667bf3 AM |
880 | bfd_put_32 (stub_bfd, insn, loc); |
881 | ||
07d6d2b8 | 882 | bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4); |
74d1c347 AM |
883 | bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8); |
884 | bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12); | |
885 | bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16); | |
886 | bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20); | |
30667bf3 AM |
887 | |
888 | /* Point the function symbol at the stub. */ | |
a63e02c7 DA |
889 | hsh->hh->eh.root.u.def.section = stub_sec; |
890 | hsh->hh->eh.root.u.def.value = stub_sec->size; | |
30667bf3 | 891 | |
18338fce | 892 | size = EXPORT_STUB_SIZE; |
30667bf3 AM |
893 | break; |
894 | ||
895 | default: | |
896 | BFD_FAIL (); | |
b34976b6 | 897 | return FALSE; |
252b5132 RH |
898 | } |
899 | ||
eea6121a | 900 | stub_sec->size += size; |
b34976b6 | 901 | return TRUE; |
252b5132 RH |
902 | } |
903 | ||
30667bf3 AM |
904 | #undef LDIL_R1 |
905 | #undef BE_SR4_R1 | |
906 | #undef BL_R1 | |
907 | #undef ADDIL_R1 | |
908 | #undef DEPI_R1 | |
30667bf3 AM |
909 | #undef LDW_R1_R21 |
910 | #undef LDW_R1_DLT | |
911 | #undef LDW_R1_R19 | |
912 | #undef ADDIL_R19 | |
913 | #undef LDW_R1_DP | |
914 | #undef LDSID_R21_R1 | |
915 | #undef MTSP_R1 | |
916 | #undef BE_SR0_R21 | |
917 | #undef STW_RP | |
918 | #undef BV_R0_R21 | |
919 | #undef BL_RP | |
920 | #undef NOP | |
921 | #undef LDW_RP | |
922 | #undef LDSID_RP_R1 | |
923 | #undef BE_SR0_RP | |
252b5132 | 924 | |
30667bf3 AM |
925 | /* As above, but don't actually build the stub. Just bump offset so |
926 | we know stub section sizes. */ | |
927 | ||
b34976b6 | 928 | static bfd_boolean |
875c0872 | 929 | hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg) |
252b5132 | 930 | { |
875c0872 | 931 | struct elf32_hppa_stub_hash_entry *hsh; |
83c81bfe | 932 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 AM |
933 | int size; |
934 | ||
935 | /* Massage our args to the form they really have. */ | |
875c0872 | 936 | hsh = hppa_stub_hash_entry (bh); |
c39a58e6 | 937 | htab = in_arg; |
30667bf3 | 938 | |
875c0872 | 939 | if (hsh->stub_type == hppa_stub_long_branch) |
18338fce | 940 | size = LONG_BRANCH_STUB_SIZE; |
875c0872 | 941 | else if (hsh->stub_type == hppa_stub_long_branch_shared) |
18338fce | 942 | size = LONG_BRANCH_SHARED_STUB_SIZE; |
875c0872 | 943 | else if (hsh->stub_type == hppa_stub_export) |
18338fce | 944 | size = EXPORT_STUB_SIZE; |
74d1c347 | 945 | else /* hppa_stub_import or hppa_stub_import_shared. */ |
252b5132 | 946 | { |
83c81bfe | 947 | if (htab->multi_subspace) |
18338fce | 948 | size = IMPORT_SHARED_STUB_SIZE; |
30667bf3 | 949 | else |
18338fce | 950 | size = IMPORT_STUB_SIZE; |
30667bf3 | 951 | } |
252b5132 | 952 | |
875c0872 | 953 | hsh->stub_sec->size += size; |
b34976b6 | 954 | return TRUE; |
30667bf3 | 955 | } |
252b5132 | 956 | |
30667bf3 AM |
957 | /* Return nonzero if ABFD represents an HPPA ELF32 file. |
958 | Additionally we set the default architecture and machine. */ | |
959 | ||
b34976b6 | 960 | static bfd_boolean |
c39a58e6 | 961 | elf32_hppa_object_p (bfd *abfd) |
30667bf3 | 962 | { |
24a5e751 L |
963 | Elf_Internal_Ehdr * i_ehdrp; |
964 | unsigned int flags; | |
252b5132 | 965 | |
24a5e751 L |
966 | i_ehdrp = elf_elfheader (abfd); |
967 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0) | |
968 | { | |
9c55345c | 969 | /* GCC on hppa-linux produces binaries with OSABI=GNU, |
6c21aa76 | 970 | but the kernel produces corefiles with OSABI=SysV. */ |
9c55345c | 971 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU && |
6c21aa76 | 972 | i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ |
b34976b6 | 973 | return FALSE; |
24a5e751 | 974 | } |
225247f0 JT |
975 | else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0) |
976 | { | |
977 | /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD, | |
978 | but the kernel produces corefiles with OSABI=SysV. */ | |
979 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD && | |
980 | i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */ | |
981 | return FALSE; | |
982 | } | |
24a5e751 L |
983 | else |
984 | { | |
985 | if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX) | |
b34976b6 | 986 | return FALSE; |
24a5e751 L |
987 | } |
988 | ||
989 | flags = i_ehdrp->e_flags; | |
30667bf3 AM |
990 | switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE)) |
991 | { | |
992 | case EFA_PARISC_1_0: | |
993 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10); | |
994 | case EFA_PARISC_1_1: | |
995 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11); | |
996 | case EFA_PARISC_2_0: | |
997 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20); | |
998 | case EFA_PARISC_2_0 | EF_PARISC_WIDE: | |
999 | return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25); | |
1000 | } | |
b34976b6 | 1001 | return TRUE; |
252b5132 RH |
1002 | } |
1003 | ||
30667bf3 AM |
1004 | /* Create the .plt and .got sections, and set up our hash table |
1005 | short-cuts to various dynamic sections. */ | |
1006 | ||
b34976b6 | 1007 | static bfd_boolean |
c39a58e6 | 1008 | elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info) |
252b5132 | 1009 | { |
83c81bfe | 1010 | struct elf32_hppa_link_hash_table *htab; |
875c0872 | 1011 | struct elf_link_hash_entry *eh; |
edd21aca | 1012 | |
30667bf3 | 1013 | /* Don't try to create the .plt and .got twice. */ |
83c81bfe | 1014 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1015 | if (htab == NULL) |
1016 | return FALSE; | |
ce558b89 | 1017 | if (htab->etab.splt != NULL) |
b34976b6 | 1018 | return TRUE; |
edd21aca | 1019 | |
30667bf3 AM |
1020 | /* Call the generic code to do most of the work. */ |
1021 | if (! _bfd_elf_create_dynamic_sections (abfd, info)) | |
b34976b6 | 1022 | return FALSE; |
252b5132 | 1023 | |
b18e2ae5 AM |
1024 | /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main |
1025 | application, because __canonicalize_funcptr_for_compare needs it. */ | |
875c0872 DA |
1026 | eh = elf_hash_table (info)->hgot; |
1027 | eh->forced_local = 0; | |
1028 | eh->other = STV_DEFAULT; | |
1029 | return bfd_elf_link_record_dynamic_symbol (info, eh); | |
30667bf3 AM |
1030 | } |
1031 | ||
ebe50bae AM |
1032 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
1033 | ||
51b64d56 | 1034 | static void |
fcfa13d2 | 1035 | elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info, |
875c0872 DA |
1036 | struct elf_link_hash_entry *eh_dir, |
1037 | struct elf_link_hash_entry *eh_ind) | |
ebe50bae | 1038 | { |
875c0872 | 1039 | struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind; |
ebe50bae | 1040 | |
875c0872 DA |
1041 | hh_dir = hppa_elf_hash_entry (eh_dir); |
1042 | hh_ind = hppa_elf_hash_entry (eh_ind); | |
ebe50bae | 1043 | |
4a7e5234 | 1044 | if (eh_ind->root.type == bfd_link_hash_indirect) |
9b52905e | 1045 | { |
4a7e5234 AM |
1046 | hh_dir->plabel |= hh_ind->plabel; |
1047 | hh_dir->tls_type |= hh_ind->tls_type; | |
1048 | hh_ind->tls_type = GOT_UNKNOWN; | |
9b52905e | 1049 | } |
4a7e5234 AM |
1050 | |
1051 | _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind); | |
9b52905e NC |
1052 | } |
1053 | ||
1054 | static int | |
1055 | elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED, | |
1056 | int r_type, int is_local ATTRIBUTE_UNUSED) | |
1057 | { | |
1058 | /* For now we don't support linker optimizations. */ | |
1059 | return r_type; | |
ebe50bae AM |
1060 | } |
1061 | ||
d45b7d74 DA |
1062 | /* Return a pointer to the local GOT, PLT and TLS reference counts |
1063 | for ABFD. Returns NULL if the storage allocation fails. */ | |
1064 | ||
1065 | static bfd_signed_vma * | |
1066 | hppa32_elf_local_refcounts (bfd *abfd) | |
1067 | { | |
1068 | Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr; | |
1069 | bfd_signed_vma *local_refcounts; | |
68ffbac6 | 1070 | |
d45b7d74 DA |
1071 | local_refcounts = elf_local_got_refcounts (abfd); |
1072 | if (local_refcounts == NULL) | |
1073 | { | |
1074 | bfd_size_type size; | |
1075 | ||
1076 | /* Allocate space for local GOT and PLT reference | |
1077 | counts. Done this way to save polluting elf_obj_tdata | |
1078 | with another target specific pointer. */ | |
1079 | size = symtab_hdr->sh_info; | |
1080 | size *= 2 * sizeof (bfd_signed_vma); | |
1081 | /* Add in space to store the local GOT TLS types. */ | |
1082 | size += symtab_hdr->sh_info; | |
1083 | local_refcounts = bfd_zalloc (abfd, size); | |
1084 | if (local_refcounts == NULL) | |
1085 | return NULL; | |
1086 | elf_local_got_refcounts (abfd) = local_refcounts; | |
1087 | memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN, | |
1088 | symtab_hdr->sh_info); | |
1089 | } | |
1090 | return local_refcounts; | |
1091 | } | |
1092 | ||
1093 | ||
30667bf3 | 1094 | /* Look through the relocs for a section during the first phase, and |
3ac8354b AM |
1095 | calculate needed space in the global offset table, procedure linkage |
1096 | table, and dynamic reloc sections. At this point we haven't | |
1097 | necessarily read all the input files. */ | |
252b5132 | 1098 | |
b34976b6 | 1099 | static bfd_boolean |
c39a58e6 AM |
1100 | elf32_hppa_check_relocs (bfd *abfd, |
1101 | struct bfd_link_info *info, | |
1102 | asection *sec, | |
1103 | const Elf_Internal_Rela *relocs) | |
252b5132 | 1104 | { |
30667bf3 | 1105 | Elf_Internal_Shdr *symtab_hdr; |
875c0872 DA |
1106 | struct elf_link_hash_entry **eh_syms; |
1107 | const Elf_Internal_Rela *rela; | |
1108 | const Elf_Internal_Rela *rela_end; | |
83c81bfe | 1109 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 1110 | asection *sreloc; |
30667bf3 | 1111 | |
0e1862bb | 1112 | if (bfd_link_relocatable (info)) |
b34976b6 | 1113 | return TRUE; |
30667bf3 | 1114 | |
83c81bfe | 1115 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1116 | if (htab == NULL) |
1117 | return FALSE; | |
30667bf3 | 1118 | symtab_hdr = &elf_tdata (abfd)->symtab_hdr; |
875c0872 | 1119 | eh_syms = elf_sym_hashes (abfd); |
30667bf3 | 1120 | sreloc = NULL; |
30667bf3 | 1121 | |
875c0872 DA |
1122 | rela_end = relocs + sec->reloc_count; |
1123 | for (rela = relocs; rela < rela_end; rela++) | |
30667bf3 AM |
1124 | { |
1125 | enum { | |
1126 | NEED_GOT = 1, | |
1127 | NEED_PLT = 2, | |
1128 | NEED_DYNREL = 4, | |
98ceb8ce | 1129 | PLT_PLABEL = 8 |
30667bf3 | 1130 | }; |
edd21aca | 1131 | |
30667bf3 | 1132 | unsigned int r_symndx, r_type; |
875c0872 DA |
1133 | struct elf32_hppa_link_hash_entry *hh; |
1134 | int need_entry = 0; | |
252b5132 | 1135 | |
875c0872 | 1136 | r_symndx = ELF32_R_SYM (rela->r_info); |
252b5132 | 1137 | |
30667bf3 | 1138 | if (r_symndx < symtab_hdr->sh_info) |
875c0872 | 1139 | hh = NULL; |
30667bf3 | 1140 | else |
f7c5057a | 1141 | { |
875c0872 | 1142 | hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]); |
a63e02c7 DA |
1143 | while (hh->eh.root.type == bfd_link_hash_indirect |
1144 | || hh->eh.root.type == bfd_link_hash_warning) | |
1145 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
f7c5057a | 1146 | } |
252b5132 | 1147 | |
875c0872 | 1148 | r_type = ELF32_R_TYPE (rela->r_info); |
9b52905e | 1149 | r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL); |
252b5132 | 1150 | |
30667bf3 AM |
1151 | switch (r_type) |
1152 | { | |
1153 | case R_PARISC_DLTIND14F: | |
1154 | case R_PARISC_DLTIND14R: | |
1155 | case R_PARISC_DLTIND21L: | |
1156 | /* This symbol requires a global offset table entry. */ | |
1157 | need_entry = NEED_GOT; | |
30667bf3 AM |
1158 | break; |
1159 | ||
1160 | case R_PARISC_PLABEL14R: /* "Official" procedure labels. */ | |
1161 | case R_PARISC_PLABEL21L: | |
1162 | case R_PARISC_PLABEL32: | |
74d1c347 | 1163 | /* If the addend is non-zero, we break badly. */ |
875c0872 | 1164 | if (rela->r_addend != 0) |
49e9d0d3 | 1165 | abort (); |
74d1c347 AM |
1166 | |
1167 | /* If we are creating a shared library, then we need to | |
1168 | create a PLT entry for all PLABELs, because PLABELs with | |
1169 | local symbols may be passed via a pointer to another | |
1170 | object. Additionally, output a dynamic relocation | |
4dc86686 | 1171 | pointing to the PLT entry. |
875c0872 | 1172 | |
4dc86686 AM |
1173 | For executables, the original 32-bit ABI allowed two |
1174 | different styles of PLABELs (function pointers): For | |
1175 | global functions, the PLABEL word points into the .plt | |
1176 | two bytes past a (function address, gp) pair, and for | |
1177 | local functions the PLABEL points directly at the | |
1178 | function. The magic +2 for the first type allows us to | |
1179 | differentiate between the two. As you can imagine, this | |
1180 | is a real pain when it comes to generating code to call | |
1181 | functions indirectly or to compare function pointers. | |
1182 | We avoid the mess by always pointing a PLABEL into the | |
1183 | .plt, even for local functions. */ | |
127e8e9f AM |
1184 | need_entry = PLT_PLABEL | NEED_PLT; |
1185 | if (bfd_link_pic (info)) | |
1186 | need_entry |= NEED_DYNREL; | |
30667bf3 AM |
1187 | break; |
1188 | ||
1189 | case R_PARISC_PCREL12F: | |
83c81bfe | 1190 | htab->has_12bit_branch = 1; |
067fa4a6 AM |
1191 | goto branch_common; |
1192 | ||
30667bf3 AM |
1193 | case R_PARISC_PCREL17C: |
1194 | case R_PARISC_PCREL17F: | |
83c81bfe | 1195 | htab->has_17bit_branch = 1; |
067fa4a6 AM |
1196 | goto branch_common; |
1197 | ||
30667bf3 | 1198 | case R_PARISC_PCREL22F: |
067fa4a6 AM |
1199 | htab->has_22bit_branch = 1; |
1200 | branch_common: | |
47d89dba AM |
1201 | /* Function calls might need to go through the .plt, and |
1202 | might require long branch stubs. */ | |
875c0872 | 1203 | if (hh == NULL) |
30667bf3 AM |
1204 | { |
1205 | /* We know local syms won't need a .plt entry, and if | |
1206 | they need a long branch stub we can't guarantee that | |
1207 | we can reach the stub. So just flag an error later | |
1208 | if we're doing a shared link and find we need a long | |
1209 | branch stub. */ | |
1210 | continue; | |
1211 | } | |
1212 | else | |
1213 | { | |
1214 | /* Global symbols will need a .plt entry if they remain | |
1215 | global, and in most cases won't need a long branch | |
1216 | stub. Unfortunately, we have to cater for the case | |
1217 | where a symbol is forced local by versioning, or due | |
1218 | to symbolic linking, and we lose the .plt entry. */ | |
98ceb8ce | 1219 | need_entry = NEED_PLT; |
a63e02c7 | 1220 | if (hh->eh.type == STT_PARISC_MILLI) |
98ceb8ce | 1221 | need_entry = 0; |
30667bf3 AM |
1222 | } |
1223 | break; | |
1224 | ||
36751eee | 1225 | case R_PARISC_SEGBASE: /* Used to set segment base. */ |
c46b7515 | 1226 | case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */ |
30667bf3 AM |
1227 | case R_PARISC_PCREL14F: /* PC relative load/store. */ |
1228 | case R_PARISC_PCREL14R: | |
1229 | case R_PARISC_PCREL17R: /* External branches. */ | |
1230 | case R_PARISC_PCREL21L: /* As above, and for load/store too. */ | |
36751eee | 1231 | case R_PARISC_PCREL32: |
30667bf3 AM |
1232 | /* We don't need to propagate the relocation if linking a |
1233 | shared object since these are section relative. */ | |
1234 | continue; | |
1235 | ||
1236 | case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */ | |
1237 | case R_PARISC_DPREL14R: | |
1238 | case R_PARISC_DPREL21L: | |
0e1862bb | 1239 | if (bfd_link_pic (info)) |
30667bf3 | 1240 | { |
4eca0228 | 1241 | _bfd_error_handler |
695344c0 | 1242 | /* xgettext:c-format */ |
871b3ab2 | 1243 | (_("%pB: relocation %s can not be used when making a shared object; recompile with -fPIC"), |
d003868e | 1244 | abfd, |
30667bf3 AM |
1245 | elf_hppa_howto_table[r_type].name); |
1246 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 1247 | return FALSE; |
30667bf3 AM |
1248 | } |
1249 | /* Fall through. */ | |
1250 | ||
1251 | case R_PARISC_DIR17F: /* Used for external branches. */ | |
1252 | case R_PARISC_DIR17R: | |
47d89dba AM |
1253 | case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */ |
1254 | case R_PARISC_DIR14R: | |
30667bf3 | 1255 | case R_PARISC_DIR21L: /* As above, and for ext branches too. */ |
c46b7515 | 1256 | case R_PARISC_DIR32: /* .word relocs. */ |
30667bf3 AM |
1257 | /* We may want to output a dynamic relocation later. */ |
1258 | need_entry = NEED_DYNREL; | |
1259 | break; | |
1260 | ||
1261 | /* This relocation describes the C++ object vtable hierarchy. | |
1262 | Reconstruct it for later use during GC. */ | |
1263 | case R_PARISC_GNU_VTINHERIT: | |
a63e02c7 | 1264 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset)) |
b34976b6 | 1265 | return FALSE; |
30667bf3 AM |
1266 | continue; |
1267 | ||
1268 | /* This relocation describes which C++ vtable entries are actually | |
1269 | used. Record for later use during GC. */ | |
1270 | case R_PARISC_GNU_VTENTRY: | |
a0ea3a14 | 1271 | if (!bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend)) |
b34976b6 | 1272 | return FALSE; |
30667bf3 AM |
1273 | continue; |
1274 | ||
9b52905e NC |
1275 | case R_PARISC_TLS_GD21L: |
1276 | case R_PARISC_TLS_GD14R: | |
1277 | case R_PARISC_TLS_LDM21L: | |
1278 | case R_PARISC_TLS_LDM14R: | |
1279 | need_entry = NEED_GOT; | |
1280 | break; | |
1281 | ||
1282 | case R_PARISC_TLS_IE21L: | |
1283 | case R_PARISC_TLS_IE14R: | |
2e684e75 | 1284 | if (bfd_link_dll (info)) |
07d6d2b8 | 1285 | info->flags |= DF_STATIC_TLS; |
9b52905e NC |
1286 | need_entry = NEED_GOT; |
1287 | break; | |
1288 | ||
30667bf3 AM |
1289 | default: |
1290 | continue; | |
1291 | } | |
1292 | ||
1293 | /* Now carry out our orders. */ | |
1294 | if (need_entry & NEED_GOT) | |
1295 | { | |
2e684e75 AM |
1296 | int tls_type = GOT_NORMAL; |
1297 | ||
9b52905e NC |
1298 | switch (r_type) |
1299 | { | |
1300 | default: | |
9b52905e NC |
1301 | break; |
1302 | case R_PARISC_TLS_GD21L: | |
1303 | case R_PARISC_TLS_GD14R: | |
2e684e75 | 1304 | tls_type = GOT_TLS_GD; |
9b52905e NC |
1305 | break; |
1306 | case R_PARISC_TLS_LDM21L: | |
1307 | case R_PARISC_TLS_LDM14R: | |
2e684e75 | 1308 | tls_type = GOT_TLS_LDM; |
9b52905e NC |
1309 | break; |
1310 | case R_PARISC_TLS_IE21L: | |
1311 | case R_PARISC_TLS_IE14R: | |
2e684e75 | 1312 | tls_type = GOT_TLS_IE; |
9b52905e NC |
1313 | break; |
1314 | } | |
1315 | ||
30667bf3 | 1316 | /* Allocate space for a GOT entry, as well as a dynamic |
25f72752 | 1317 | relocation for this entry. */ |
ce558b89 | 1318 | if (htab->etab.sgot == NULL) |
30667bf3 | 1319 | { |
a63e02c7 | 1320 | if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info)) |
b34976b6 | 1321 | return FALSE; |
30667bf3 AM |
1322 | } |
1323 | ||
2e684e75 | 1324 | if (hh != NULL) |
30667bf3 | 1325 | { |
2e684e75 AM |
1326 | if (tls_type == GOT_TLS_LDM) |
1327 | htab->tls_ldm_got.refcount += 1; | |
9b52905e | 1328 | else |
2e684e75 AM |
1329 | hh->eh.got.refcount += 1; |
1330 | hh->tls_type |= tls_type; | |
1331 | } | |
1332 | else | |
1333 | { | |
1334 | bfd_signed_vma *local_got_refcounts; | |
9b52905e | 1335 | |
2e684e75 AM |
1336 | /* This is a global offset table entry for a local symbol. */ |
1337 | local_got_refcounts = hppa32_elf_local_refcounts (abfd); | |
1338 | if (local_got_refcounts == NULL) | |
1339 | return FALSE; | |
1340 | if (tls_type == GOT_TLS_LDM) | |
1341 | htab->tls_ldm_got.refcount += 1; | |
1342 | else | |
1343 | local_got_refcounts[r_symndx] += 1; | |
9b52905e | 1344 | |
2e684e75 | 1345 | hppa_elf_local_got_tls_type (abfd) [r_symndx] |= tls_type; |
30667bf3 AM |
1346 | } |
1347 | } | |
1348 | ||
1349 | if (need_entry & NEED_PLT) | |
1350 | { | |
1351 | /* If we are creating a shared library, and this is a reloc | |
1352 | against a weak symbol or a global symbol in a dynamic | |
1353 | object, then we will be creating an import stub and a | |
1354 | .plt entry for the symbol. Similarly, on a normal link | |
1355 | to symbols defined in a dynamic object we'll need the | |
1356 | import stub and a .plt entry. We don't know yet whether | |
1357 | the symbol is defined or not, so make an entry anyway and | |
1358 | clean up later in adjust_dynamic_symbol. */ | |
1359 | if ((sec->flags & SEC_ALLOC) != 0) | |
1360 | { | |
875c0872 | 1361 | if (hh != NULL) |
30667bf3 | 1362 | { |
a63e02c7 DA |
1363 | hh->eh.needs_plt = 1; |
1364 | hh->eh.plt.refcount += 1; | |
74d1c347 | 1365 | |
36605136 AM |
1366 | /* If this .plt entry is for a plabel, mark it so |
1367 | that adjust_dynamic_symbol will keep the entry | |
1368 | even if it appears to be local. */ | |
74d1c347 | 1369 | if (need_entry & PLT_PLABEL) |
875c0872 | 1370 | hh->plabel = 1; |
74d1c347 AM |
1371 | } |
1372 | else if (need_entry & PLT_PLABEL) | |
1373 | { | |
3ac8354b | 1374 | bfd_signed_vma *local_got_refcounts; |
68fb2e56 | 1375 | bfd_signed_vma *local_plt_refcounts; |
74d1c347 | 1376 | |
d45b7d74 | 1377 | local_got_refcounts = hppa32_elf_local_refcounts (abfd); |
74d1c347 | 1378 | if (local_got_refcounts == NULL) |
d45b7d74 | 1379 | return FALSE; |
68fb2e56 AM |
1380 | local_plt_refcounts = (local_got_refcounts |
1381 | + symtab_hdr->sh_info); | |
ebe50bae | 1382 | local_plt_refcounts[r_symndx] += 1; |
30667bf3 | 1383 | } |
30667bf3 AM |
1384 | } |
1385 | } | |
1386 | ||
d336fa6d AM |
1387 | if ((need_entry & NEED_DYNREL) != 0 |
1388 | && (sec->flags & SEC_ALLOC) != 0) | |
30667bf3 AM |
1389 | { |
1390 | /* Flag this symbol as having a non-got, non-plt reference | |
1391 | so that we generate copy relocs if it turns out to be | |
1392 | dynamic. */ | |
4a7e5234 | 1393 | if (hh != NULL) |
a63e02c7 | 1394 | hh->eh.non_got_ref = 1; |
30667bf3 AM |
1395 | |
1396 | /* If we are creating a shared library then we need to copy | |
1397 | the reloc into the shared library. However, if we are | |
1398 | linking with -Bsymbolic, we need only copy absolute | |
1399 | relocs or relocs against symbols that are not defined in | |
1400 | an object we are including in the link. PC- or DP- or | |
1401 | DLT-relative relocs against any local sym or global sym | |
1402 | with DEF_REGULAR set, can be discarded. At this point we | |
1403 | have not seen all the input files, so it is possible that | |
1404 | DEF_REGULAR is not set now but will be set later (it is | |
1405 | never cleared). We account for that possibility below by | |
98ceb8ce | 1406 | storing information in the dyn_relocs field of the |
30667bf3 AM |
1407 | hash table entry. |
1408 | ||
1409 | A similar situation to the -Bsymbolic case occurs when | |
1410 | creating shared libraries and symbol visibility changes | |
1411 | render the symbol local. | |
1412 | ||
1413 | As it turns out, all the relocs we will be creating here | |
1414 | are absolute, so we cannot remove them on -Bsymbolic | |
1415 | links or visibility changes anyway. A STUB_REL reloc | |
1416 | is absolute too, as in that case it is the reloc in the | |
1417 | stub we will be creating, rather than copying the PCREL | |
56882138 AM |
1418 | reloc in the branch. |
1419 | ||
1420 | If on the other hand, we are creating an executable, we | |
1421 | may need to keep relocations for symbols satisfied by a | |
1422 | dynamic library if we manage to avoid copy relocs for the | |
1423 | symbol. */ | |
0e1862bb | 1424 | if ((bfd_link_pic (info) |
446f2863 | 1425 | && (IS_ABSOLUTE_RELOC (r_type) |
875c0872 | 1426 | || (hh != NULL |
a496fbc8 | 1427 | && (!SYMBOLIC_BIND (info, &hh->eh) |
a63e02c7 DA |
1428 | || hh->eh.root.type == bfd_link_hash_defweak |
1429 | || !hh->eh.def_regular)))) | |
4fc8051d | 1430 | || (ELIMINATE_COPY_RELOCS |
0e1862bb | 1431 | && !bfd_link_pic (info) |
875c0872 | 1432 | && hh != NULL |
a63e02c7 DA |
1433 | && (hh->eh.root.type == bfd_link_hash_defweak |
1434 | || !hh->eh.def_regular))) | |
30667bf3 | 1435 | { |
3bf083ed AM |
1436 | struct elf_dyn_relocs *hdh_p; |
1437 | struct elf_dyn_relocs **hdh_head; | |
ec338859 | 1438 | |
30667bf3 AM |
1439 | /* Create a reloc section in dynobj and make room for |
1440 | this reloc. */ | |
98ceb8ce | 1441 | if (sreloc == NULL) |
30667bf3 | 1442 | { |
83bac4b0 NC |
1443 | sreloc = _bfd_elf_make_dynamic_reloc_section |
1444 | (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE); | |
1445 | ||
98ceb8ce | 1446 | if (sreloc == NULL) |
30667bf3 | 1447 | { |
83bac4b0 NC |
1448 | bfd_set_error (bfd_error_bad_value); |
1449 | return FALSE; | |
30667bf3 | 1450 | } |
30667bf3 AM |
1451 | } |
1452 | ||
98ceb8ce AM |
1453 | /* If this is a global symbol, we count the number of |
1454 | relocations we need for this symbol. */ | |
875c0872 | 1455 | if (hh != NULL) |
30667bf3 | 1456 | { |
190eb1dd | 1457 | hdh_head = &hh->eh.dyn_relocs; |
ec338859 AM |
1458 | } |
1459 | else | |
1460 | { | |
1461 | /* Track dynamic relocs needed for local syms too. | |
1462 | We really need local syms available to do this | |
1463 | easily. Oh well. */ | |
875c0872 | 1464 | asection *sr; |
6edfbbad | 1465 | void *vpp; |
87d72d41 | 1466 | Elf_Internal_Sym *isym; |
6edfbbad | 1467 | |
87d72d41 AM |
1468 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
1469 | abfd, r_symndx); | |
1470 | if (isym == NULL) | |
b34976b6 | 1471 | return FALSE; |
30667bf3 | 1472 | |
87d72d41 AM |
1473 | sr = bfd_section_from_elf_index (abfd, isym->st_shndx); |
1474 | if (sr == NULL) | |
1475 | sr = sec; | |
1476 | ||
6edfbbad | 1477 | vpp = &elf_section_data (sr)->local_dynrel; |
3bf083ed | 1478 | hdh_head = (struct elf_dyn_relocs **) vpp; |
ec338859 AM |
1479 | } |
1480 | ||
875c0872 DA |
1481 | hdh_p = *hdh_head; |
1482 | if (hdh_p == NULL || hdh_p->sec != sec) | |
ec338859 | 1483 | { |
a63e02c7 | 1484 | hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p); |
875c0872 | 1485 | if (hdh_p == NULL) |
b34976b6 | 1486 | return FALSE; |
3bf083ed | 1487 | hdh_p->next = *hdh_head; |
875c0872 DA |
1488 | *hdh_head = hdh_p; |
1489 | hdh_p->sec = sec; | |
1490 | hdh_p->count = 0; | |
98ceb8ce | 1491 | #if RELATIVE_DYNRELOCS |
3bf083ed | 1492 | hdh_p->pc_count = 0; |
98ceb8ce | 1493 | #endif |
ec338859 | 1494 | } |
98ceb8ce | 1495 | |
875c0872 | 1496 | hdh_p->count += 1; |
98ceb8ce | 1497 | #if RELATIVE_DYNRELOCS |
ec338859 | 1498 | if (!IS_ABSOLUTE_RELOC (rtype)) |
3bf083ed | 1499 | hdh_p->pc_count += 1; |
98ceb8ce | 1500 | #endif |
30667bf3 AM |
1501 | } |
1502 | } | |
1503 | } | |
edd21aca | 1504 | |
b34976b6 | 1505 | return TRUE; |
edd21aca AM |
1506 | } |
1507 | ||
30667bf3 AM |
1508 | /* Return the section that should be marked against garbage collection |
1509 | for a given relocation. */ | |
1510 | ||
1511 | static asection * | |
c39a58e6 | 1512 | elf32_hppa_gc_mark_hook (asection *sec, |
07adf181 | 1513 | struct bfd_link_info *info, |
875c0872 DA |
1514 | Elf_Internal_Rela *rela, |
1515 | struct elf_link_hash_entry *hh, | |
c39a58e6 | 1516 | Elf_Internal_Sym *sym) |
30667bf3 | 1517 | { |
875c0872 | 1518 | if (hh != NULL) |
07adf181 AM |
1519 | switch ((unsigned int) ELF32_R_TYPE (rela->r_info)) |
1520 | { | |
1521 | case R_PARISC_GNU_VTINHERIT: | |
1522 | case R_PARISC_GNU_VTENTRY: | |
1523 | return NULL; | |
1524 | } | |
30667bf3 | 1525 | |
07adf181 | 1526 | return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym); |
30667bf3 AM |
1527 | } |
1528 | ||
edfc032f AM |
1529 | /* Support for core dump NOTE sections. */ |
1530 | ||
1531 | static bfd_boolean | |
1532 | elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
1533 | { | |
1534 | int offset; | |
1535 | size_t size; | |
1536 | ||
1537 | switch (note->descsz) | |
1538 | { | |
1539 | default: | |
1540 | return FALSE; | |
1541 | ||
1542 | case 396: /* Linux/hppa */ | |
1543 | /* pr_cursig */ | |
228e534f | 1544 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
edfc032f AM |
1545 | |
1546 | /* pr_pid */ | |
228e534f | 1547 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24); |
edfc032f AM |
1548 | |
1549 | /* pr_reg */ | |
1550 | offset = 72; | |
1551 | size = 320; | |
1552 | ||
1553 | break; | |
1554 | } | |
1555 | ||
1556 | /* Make a ".reg/999" section. */ | |
1557 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
1558 | size, note->descpos + offset); | |
1559 | } | |
1560 | ||
1561 | static bfd_boolean | |
1562 | elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
1563 | { | |
1564 | switch (note->descsz) | |
1565 | { | |
1566 | default: | |
1567 | return FALSE; | |
1568 | ||
1569 | case 124: /* Linux/hppa elf_prpsinfo. */ | |
228e534f | 1570 | elf_tdata (abfd)->core->program |
edfc032f | 1571 | = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16); |
228e534f | 1572 | elf_tdata (abfd)->core->command |
edfc032f AM |
1573 | = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80); |
1574 | } | |
1575 | ||
1576 | /* Note that for some reason, a spurious space is tacked | |
1577 | onto the end of the args in some (at least one anyway) | |
1578 | implementations, so strip it off if it exists. */ | |
1579 | { | |
228e534f | 1580 | char *command = elf_tdata (abfd)->core->command; |
edfc032f AM |
1581 | int n = strlen (command); |
1582 | ||
1583 | if (0 < n && command[n - 1] == ' ') | |
1584 | command[n - 1] = '\0'; | |
1585 | } | |
1586 | ||
1587 | return TRUE; | |
1588 | } | |
1589 | ||
74d1c347 AM |
1590 | /* Our own version of hide_symbol, so that we can keep plt entries for |
1591 | plabels. */ | |
1592 | ||
1593 | static void | |
c39a58e6 | 1594 | elf32_hppa_hide_symbol (struct bfd_link_info *info, |
875c0872 | 1595 | struct elf_link_hash_entry *eh, |
c39a58e6 | 1596 | bfd_boolean force_local) |
74d1c347 | 1597 | { |
e5094212 AM |
1598 | if (force_local) |
1599 | { | |
875c0872 DA |
1600 | eh->forced_local = 1; |
1601 | if (eh->dynindx != -1) | |
e5094212 | 1602 | { |
875c0872 | 1603 | eh->dynindx = -1; |
e5094212 | 1604 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, |
875c0872 | 1605 | eh->dynstr_index); |
e5094212 | 1606 | } |
31fc8a0b NC |
1607 | |
1608 | /* PR 16082: Remove version information from hidden symbol. */ | |
1609 | eh->verinfo.verdef = NULL; | |
1610 | eh->verinfo.vertree = NULL; | |
e5094212 AM |
1611 | } |
1612 | ||
4340287b DA |
1613 | /* STT_GNU_IFUNC symbol must go through PLT. */ |
1614 | if (! hppa_elf_hash_entry (eh)->plabel | |
1615 | && eh->type != STT_GNU_IFUNC) | |
74d1c347 | 1616 | { |
875c0872 | 1617 | eh->needs_plt = 0; |
4340287b | 1618 | eh->plt = elf_hash_table (info)->init_plt_offset; |
74d1c347 AM |
1619 | } |
1620 | } | |
1621 | ||
287c7eaf AM |
1622 | /* Return true if we have dynamic relocs against H or any of its weak |
1623 | aliases, that apply to read-only sections. Cannot be used after | |
1624 | size_dynamic_sections. */ | |
1625 | ||
1626 | static bfd_boolean | |
1627 | alias_readonly_dynrelocs (struct elf_link_hash_entry *eh) | |
1628 | { | |
1629 | struct elf32_hppa_link_hash_entry *hh = hppa_elf_hash_entry (eh); | |
1630 | do | |
1631 | { | |
5dbc8b37 | 1632 | if (_bfd_elf_readonly_dynrelocs (&hh->eh)) |
287c7eaf AM |
1633 | return TRUE; |
1634 | hh = hppa_elf_hash_entry (hh->eh.u.alias); | |
1635 | } while (hh != NULL && &hh->eh != eh); | |
1636 | ||
1637 | return FALSE; | |
1638 | } | |
1639 | ||
30667bf3 AM |
1640 | /* Adjust a symbol defined by a dynamic object and referenced by a |
1641 | regular object. The current definition is in some section of the | |
1642 | dynamic object, but we're not including those sections. We have to | |
1643 | change the definition to something the rest of the link can | |
1644 | understand. */ | |
252b5132 | 1645 | |
b34976b6 | 1646 | static bfd_boolean |
c39a58e6 | 1647 | elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info, |
875c0872 | 1648 | struct elf_link_hash_entry *eh) |
252b5132 | 1649 | { |
83c81bfe | 1650 | struct elf32_hppa_link_hash_table *htab; |
5474d94f | 1651 | asection *sec, *srel; |
30667bf3 AM |
1652 | |
1653 | /* If this is a function, put it in the procedure linkage table. We | |
067fa4a6 | 1654 | will fill in the contents of the procedure linkage table later. */ |
875c0872 DA |
1655 | if (eh->type == STT_FUNC |
1656 | || eh->needs_plt) | |
30667bf3 | 1657 | { |
127e8e9f AM |
1658 | bfd_boolean local = (SYMBOL_CALLS_LOCAL (info, eh) |
1659 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)); | |
287c7eaf | 1660 | /* Discard dyn_relocs when non-pic if we've decided that a |
529fe20e | 1661 | function symbol is local. */ |
287c7eaf | 1662 | if (!bfd_link_pic (info) && local) |
190eb1dd | 1663 | eh->dyn_relocs = NULL; |
127e8e9f | 1664 | |
4340287b DA |
1665 | /* If the symbol is used by a plabel, we must allocate a PLT slot. |
1666 | The refcounts are not reliable when it has been hidden since | |
1667 | hide_symbol can be called before the plabel flag is set. */ | |
d336fa6d | 1668 | if (hppa_elf_hash_entry (eh)->plabel) |
4340287b DA |
1669 | eh->plt.refcount = 1; |
1670 | ||
127e8e9f AM |
1671 | /* Note that unlike some other backends, the refcount is not |
1672 | incremented for a non-call (and non-plabel) function reference. */ | |
d336fa6d | 1673 | else if (eh->plt.refcount <= 0 |
127e8e9f | 1674 | || local) |
30667bf3 AM |
1675 | { |
1676 | /* The .plt entry is not needed when: | |
1677 | a) Garbage collection has removed all references to the | |
1678 | symbol, or | |
1679 | b) We know for certain the symbol is defined in this | |
74d1c347 AM |
1680 | object, and it's not a weak definition, nor is the symbol |
1681 | used by a plabel relocation. Either this object is the | |
1682 | application or we are doing a shared symbolic link. */ | |
875c0872 DA |
1683 | eh->plt.offset = (bfd_vma) -1; |
1684 | eh->needs_plt = 0; | |
30667bf3 | 1685 | } |
4dc86686 | 1686 | |
287c7eaf AM |
1687 | /* Unlike other targets, elf32-hppa.c does not define a function |
1688 | symbol in a non-pic executable on PLT stub code, so we don't | |
1689 | have a local definition in that case. ie. dyn_relocs can't | |
1690 | be discarded. */ | |
1691 | ||
127e8e9f | 1692 | /* Function symbols can't have copy relocs. */ |
b34976b6 | 1693 | return TRUE; |
30667bf3 | 1694 | } |
bbd7ec4a | 1695 | else |
875c0872 | 1696 | eh->plt.offset = (bfd_vma) -1; |
edd21aca | 1697 | |
4a7e5234 AM |
1698 | htab = hppa_link_hash_table (info); |
1699 | if (htab == NULL) | |
1700 | return FALSE; | |
1701 | ||
30667bf3 AM |
1702 | /* If this is a weak symbol, and there is a real definition, the |
1703 | processor independent code will have arranged for us to see the | |
1704 | real definition first, and we can just use the same value. */ | |
60d67dc8 | 1705 | if (eh->is_weakalias) |
edd21aca | 1706 | { |
60d67dc8 AM |
1707 | struct elf_link_hash_entry *def = weakdef (eh); |
1708 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
1709 | eh->root.u.def.section = def->root.u.def.section; | |
1710 | eh->root.u.def.value = def->root.u.def.value; | |
4a7e5234 AM |
1711 | if (def->root.u.def.section == htab->etab.sdynbss |
1712 | || def->root.u.def.section == htab->etab.sdynrelro) | |
190eb1dd | 1713 | eh->dyn_relocs = NULL; |
b34976b6 | 1714 | return TRUE; |
30667bf3 | 1715 | } |
edd21aca | 1716 | |
30667bf3 AM |
1717 | /* This is a reference to a symbol defined by a dynamic object which |
1718 | is not a function. */ | |
1719 | ||
1720 | /* If we are creating a shared library, we must presume that the | |
1721 | only references to the symbol are via the global offset table. | |
1722 | For such cases we need not do anything here; the relocations will | |
1723 | be handled correctly by relocate_section. */ | |
0e1862bb | 1724 | if (bfd_link_pic (info)) |
b34976b6 | 1725 | return TRUE; |
30667bf3 AM |
1726 | |
1727 | /* If there are no references to this symbol that do not use the | |
1728 | GOT, we don't need to generate a copy reloc. */ | |
875c0872 | 1729 | if (!eh->non_got_ref) |
529fe20e | 1730 | return TRUE; |
ebe50bae | 1731 | |
127e8e9f AM |
1732 | /* If -z nocopyreloc was given, we won't generate them either. */ |
1733 | if (info->nocopyreloc) | |
529fe20e | 1734 | return TRUE; |
4fc8051d | 1735 | |
3bf083ed AM |
1736 | /* If we don't find any dynamic relocs in read-only sections, then |
1737 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
127e8e9f | 1738 | if (ELIMINATE_COPY_RELOCS |
287c7eaf | 1739 | && !alias_readonly_dynrelocs (eh)) |
3bf083ed | 1740 | return TRUE; |
ebe50bae | 1741 | |
30667bf3 AM |
1742 | /* We must allocate the symbol in our .dynbss section, which will |
1743 | become part of the .bss section of the executable. There will be | |
1744 | an entry for this symbol in the .dynsym section. The dynamic | |
1745 | object will contain position independent code, so all references | |
1746 | from the dynamic object to this symbol will go through the global | |
1747 | offset table. The dynamic linker will use the .dynsym entry to | |
1748 | determine the address it must put in the global offset table, so | |
1749 | both the dynamic object and the regular object will refer to the | |
1750 | same memory location for the variable. */ | |
5474d94f AM |
1751 | if ((eh->root.u.def.section->flags & SEC_READONLY) != 0) |
1752 | { | |
1753 | sec = htab->etab.sdynrelro; | |
1754 | srel = htab->etab.sreldynrelro; | |
1755 | } | |
1756 | else | |
1757 | { | |
1758 | sec = htab->etab.sdynbss; | |
1759 | srel = htab->etab.srelbss; | |
1760 | } | |
1d7e9d18 | 1761 | if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0) |
30667bf3 | 1762 | { |
4a7e5234 AM |
1763 | /* We must generate a COPY reloc to tell the dynamic linker to |
1764 | copy the initial value out of the dynamic object and into the | |
1765 | runtime process image. */ | |
5474d94f | 1766 | srel->size += sizeof (Elf32_External_Rela); |
875c0872 | 1767 | eh->needs_copy = 1; |
edd21aca | 1768 | } |
252b5132 | 1769 | |
529fe20e | 1770 | /* We no longer want dyn_relocs. */ |
190eb1dd | 1771 | eh->dyn_relocs = NULL; |
6cabe1ea | 1772 | return _bfd_elf_adjust_dynamic_copy (info, eh, sec); |
252b5132 RH |
1773 | } |
1774 | ||
46434633 | 1775 | /* If EH is undefined, make it dynamic if that makes sense. */ |
595e0a47 AM |
1776 | |
1777 | static bfd_boolean | |
46434633 AM |
1778 | ensure_undef_dynamic (struct bfd_link_info *info, |
1779 | struct elf_link_hash_entry *eh) | |
595e0a47 | 1780 | { |
46434633 AM |
1781 | struct elf_link_hash_table *htab = elf_hash_table (info); |
1782 | ||
1783 | if (htab->dynamic_sections_created | |
1784 | && (eh->root.type == bfd_link_hash_undefweak | |
1785 | || eh->root.type == bfd_link_hash_undefined) | |
1786 | && eh->dynindx == -1 | |
595e0a47 AM |
1787 | && !eh->forced_local |
1788 | && eh->type != STT_PARISC_MILLI | |
60c1b909 | 1789 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh) |
595e0a47 AM |
1790 | && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT) |
1791 | return bfd_elf_link_record_dynamic_symbol (info, eh); | |
1792 | return TRUE; | |
1793 | } | |
1794 | ||
e5ee5df1 | 1795 | /* Allocate space in the .plt for entries that won't have relocations. |
a252afa4 | 1796 | ie. plabel entries. */ |
a8d02d66 | 1797 | |
b34976b6 | 1798 | static bfd_boolean |
875c0872 | 1799 | allocate_plt_static (struct elf_link_hash_entry *eh, void *inf) |
a8d02d66 AM |
1800 | { |
1801 | struct bfd_link_info *info; | |
1802 | struct elf32_hppa_link_hash_table *htab; | |
875c0872 DA |
1803 | struct elf32_hppa_link_hash_entry *hh; |
1804 | asection *sec; | |
a8d02d66 | 1805 | |
875c0872 | 1806 | if (eh->root.type == bfd_link_hash_indirect) |
b34976b6 | 1807 | return TRUE; |
a8d02d66 | 1808 | |
875c0872 | 1809 | info = (struct bfd_link_info *) inf; |
9b52905e | 1810 | hh = hppa_elf_hash_entry (eh); |
a8d02d66 | 1811 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1812 | if (htab == NULL) |
1813 | return FALSE; | |
1814 | ||
a63e02c7 | 1815 | if (htab->etab.dynamic_sections_created |
875c0872 | 1816 | && eh->plt.refcount > 0) |
e5ee5df1 | 1817 | { |
46434633 | 1818 | if (!ensure_undef_dynamic (info, eh)) |
595e0a47 | 1819 | return FALSE; |
e5ee5df1 | 1820 | |
0e1862bb | 1821 | if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh)) |
e5ee5df1 | 1822 | { |
067fa4a6 AM |
1823 | /* Allocate these later. From this point on, h->plabel |
1824 | means that the plt entry is only used by a plabel. | |
1825 | We'll be using a normal plt entry for this symbol, so | |
1826 | clear the plabel indicator. */ | |
68ffbac6 | 1827 | |
875c0872 | 1828 | hh->plabel = 0; |
e5ee5df1 | 1829 | } |
875c0872 | 1830 | else if (hh->plabel) |
e5ee5df1 AM |
1831 | { |
1832 | /* Make an entry in the .plt section for plabel references | |
1833 | that won't have a .plt entry for other reasons. */ | |
ce558b89 | 1834 | sec = htab->etab.splt; |
875c0872 DA |
1835 | eh->plt.offset = sec->size; |
1836 | sec->size += PLT_ENTRY_SIZE; | |
247d6c4c AM |
1837 | if (bfd_link_pic (info)) |
1838 | htab->etab.srelplt->size += sizeof (Elf32_External_Rela); | |
a8d02d66 AM |
1839 | } |
1840 | else | |
e5ee5df1 AM |
1841 | { |
1842 | /* No .plt entry needed. */ | |
875c0872 DA |
1843 | eh->plt.offset = (bfd_vma) -1; |
1844 | eh->needs_plt = 0; | |
e5ee5df1 AM |
1845 | } |
1846 | } | |
1847 | else | |
1848 | { | |
875c0872 DA |
1849 | eh->plt.offset = (bfd_vma) -1; |
1850 | eh->needs_plt = 0; | |
a8d02d66 AM |
1851 | } |
1852 | ||
b34976b6 | 1853 | return TRUE; |
a8d02d66 AM |
1854 | } |
1855 | ||
2e684e75 AM |
1856 | /* Calculate size of GOT entries for symbol given its TLS_TYPE. */ |
1857 | ||
1858 | static inline unsigned int | |
1859 | got_entries_needed (int tls_type) | |
1860 | { | |
1861 | unsigned int need = 0; | |
1862 | ||
1863 | if ((tls_type & GOT_NORMAL) != 0) | |
1864 | need += GOT_ENTRY_SIZE; | |
1865 | if ((tls_type & GOT_TLS_GD) != 0) | |
1866 | need += GOT_ENTRY_SIZE * 2; | |
1867 | if ((tls_type & GOT_TLS_IE) != 0) | |
1868 | need += GOT_ENTRY_SIZE; | |
1869 | return need; | |
1870 | } | |
1871 | ||
1872 | /* Calculate size of relocs needed for symbol given its TLS_TYPE and | |
4352556b AM |
1873 | NEEDed GOT entries. TPREL_KNOWN says a TPREL offset can be |
1874 | calculated at link time. DTPREL_KNOWN says the same for a DTPREL | |
1875 | offset. */ | |
2e684e75 AM |
1876 | |
1877 | static inline unsigned int | |
4352556b AM |
1878 | got_relocs_needed (int tls_type, unsigned int need, |
1879 | bfd_boolean dtprel_known, bfd_boolean tprel_known) | |
2e684e75 AM |
1880 | { |
1881 | /* All the entries we allocated need relocs. | |
4352556b AM |
1882 | Except for GD and IE with local symbols. */ |
1883 | if ((tls_type & GOT_TLS_GD) != 0 && dtprel_known) | |
1884 | need -= GOT_ENTRY_SIZE; | |
1885 | if ((tls_type & GOT_TLS_IE) != 0 && tprel_known) | |
2e684e75 AM |
1886 | need -= GOT_ENTRY_SIZE; |
1887 | return need * sizeof (Elf32_External_Rela) / GOT_ENTRY_SIZE; | |
1888 | } | |
1889 | ||
4dc86686 AM |
1890 | /* Allocate space in .plt, .got and associated reloc sections for |
1891 | global syms. */ | |
1892 | ||
b34976b6 | 1893 | static bfd_boolean |
875c0872 | 1894 | allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf) |
4dc86686 AM |
1895 | { |
1896 | struct bfd_link_info *info; | |
83c81bfe | 1897 | struct elf32_hppa_link_hash_table *htab; |
875c0872 DA |
1898 | asection *sec; |
1899 | struct elf32_hppa_link_hash_entry *hh; | |
3bf083ed | 1900 | struct elf_dyn_relocs *hdh_p; |
4dc86686 | 1901 | |
875c0872 | 1902 | if (eh->root.type == bfd_link_hash_indirect) |
b34976b6 | 1903 | return TRUE; |
73a74a62 | 1904 | |
c39a58e6 | 1905 | info = inf; |
83c81bfe | 1906 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
1907 | if (htab == NULL) |
1908 | return FALSE; | |
1909 | ||
875c0872 | 1910 | hh = hppa_elf_hash_entry (eh); |
68ffbac6 | 1911 | |
a63e02c7 | 1912 | if (htab->etab.dynamic_sections_created |
875c0872 DA |
1913 | && eh->plt.offset != (bfd_vma) -1 |
1914 | && !hh->plabel | |
1915 | && eh->plt.refcount > 0) | |
4dc86686 | 1916 | { |
e5ee5df1 | 1917 | /* Make an entry in the .plt section. */ |
ce558b89 | 1918 | sec = htab->etab.splt; |
875c0872 DA |
1919 | eh->plt.offset = sec->size; |
1920 | sec->size += PLT_ENTRY_SIZE; | |
3ac8354b | 1921 | |
e5ee5df1 | 1922 | /* We also need to make an entry in the .rela.plt section. */ |
ce558b89 | 1923 | htab->etab.srelplt->size += sizeof (Elf32_External_Rela); |
e5ee5df1 | 1924 | htab->need_plt_stub = 1; |
4dc86686 | 1925 | } |
edd21aca | 1926 | |
875c0872 | 1927 | if (eh->got.refcount > 0) |
4dc86686 | 1928 | { |
2e684e75 AM |
1929 | unsigned int need; |
1930 | ||
46434633 | 1931 | if (!ensure_undef_dynamic (info, eh)) |
595e0a47 | 1932 | return FALSE; |
446f2863 | 1933 | |
ce558b89 | 1934 | sec = htab->etab.sgot; |
875c0872 | 1935 | eh->got.offset = sec->size; |
2e684e75 AM |
1936 | need = got_entries_needed (hh->tls_type); |
1937 | sec->size += need; | |
a63e02c7 | 1938 | if (htab->etab.dynamic_sections_created |
4352556b AM |
1939 | && (bfd_link_dll (info) |
1940 | || (bfd_link_pic (info) && (hh->tls_type & GOT_NORMAL) != 0) | |
875c0872 | 1941 | || (eh->dynindx != -1 |
d336fa6d AM |
1942 | && !SYMBOL_REFERENCES_LOCAL (info, eh))) |
1943 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)) | |
ce757d15 | 1944 | { |
4352556b | 1945 | bfd_boolean local = SYMBOL_REFERENCES_LOCAL (info, eh); |
2e684e75 | 1946 | htab->etab.srelgot->size |
4352556b AM |
1947 | += got_relocs_needed (hh->tls_type, need, local, |
1948 | local && bfd_link_executable (info)); | |
ce757d15 | 1949 | } |
4dc86686 AM |
1950 | } |
1951 | else | |
875c0872 | 1952 | eh->got.offset = (bfd_vma) -1; |
30667bf3 | 1953 | |
d336fa6d AM |
1954 | /* If no dynamic sections we can't have dynamic relocs. */ |
1955 | if (!htab->etab.dynamic_sections_created) | |
190eb1dd | 1956 | eh->dyn_relocs = NULL; |
d336fa6d | 1957 | |
529fe20e AM |
1958 | /* Discard relocs on undefined syms with non-default visibility. */ |
1959 | else if ((eh->root.type == bfd_link_hash_undefined | |
1960 | && ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT) | |
1961 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)) | |
190eb1dd | 1962 | eh->dyn_relocs = NULL; |
529fe20e | 1963 | |
190eb1dd | 1964 | if (eh->dyn_relocs == NULL) |
287c7eaf | 1965 | return TRUE; |
30667bf3 | 1966 | |
98ceb8ce AM |
1967 | /* If this is a -Bsymbolic shared link, then we need to discard all |
1968 | space allocated for dynamic pc-relative relocs against symbols | |
1969 | defined in a regular object. For the normal shared case, discard | |
1970 | space for relocs that have become local due to symbol visibility | |
1971 | changes. */ | |
0e1862bb | 1972 | if (bfd_link_pic (info)) |
446f2863 | 1973 | { |
98ceb8ce | 1974 | #if RELATIVE_DYNRELOCS |
529fe20e | 1975 | if (SYMBOL_CALLS_LOCAL (info, eh)) |
446f2863 | 1976 | { |
3bf083ed | 1977 | struct elf_dyn_relocs **hdh_pp; |
30667bf3 | 1978 | |
190eb1dd | 1979 | for (hdh_pp = &eh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; ) |
98ceb8ce | 1980 | { |
3bf083ed AM |
1981 | hdh_p->count -= hdh_p->pc_count; |
1982 | hdh_p->pc_count = 0; | |
875c0872 | 1983 | if (hdh_p->count == 0) |
3bf083ed | 1984 | *hdh_pp = hdh_p->next; |
98ceb8ce | 1985 | else |
3bf083ed | 1986 | hdh_pp = &hdh_p->next; |
98ceb8ce AM |
1987 | } |
1988 | } | |
1989 | #endif | |
4fc8051d | 1990 | |
190eb1dd | 1991 | if (eh->dyn_relocs != NULL) |
22d606e9 | 1992 | { |
46434633 | 1993 | if (!ensure_undef_dynamic (info, eh)) |
595e0a47 | 1994 | return FALSE; |
22d606e9 | 1995 | } |
446f2863 | 1996 | } |
d336fa6d | 1997 | else if (ELIMINATE_COPY_RELOCS) |
30667bf3 | 1998 | { |
98ceb8ce AM |
1999 | /* For the non-shared case, discard space for relocs against |
2000 | symbols which turn out to need copy relocs or are not | |
2001 | dynamic. */ | |
68ffbac6 | 2002 | |
529fe20e | 2003 | if (eh->dynamic_adjusted |
529fe20e AM |
2004 | && !eh->def_regular |
2005 | && !ELF_COMMON_DEF_P (eh)) | |
98ceb8ce | 2006 | { |
46434633 | 2007 | if (!ensure_undef_dynamic (info, eh)) |
595e0a47 | 2008 | return FALSE; |
98ceb8ce | 2009 | |
46434633 | 2010 | if (eh->dynindx == -1) |
190eb1dd | 2011 | eh->dyn_relocs = NULL; |
98ceb8ce | 2012 | } |
46434633 | 2013 | else |
190eb1dd | 2014 | eh->dyn_relocs = NULL; |
30667bf3 | 2015 | } |
30667bf3 | 2016 | |
98ceb8ce | 2017 | /* Finally, allocate space. */ |
190eb1dd | 2018 | for (hdh_p = eh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->next) |
30667bf3 | 2019 | { |
875c0872 DA |
2020 | asection *sreloc = elf_section_data (hdh_p->sec)->sreloc; |
2021 | sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela); | |
30667bf3 | 2022 | } |
30667bf3 | 2023 | |
b34976b6 | 2024 | return TRUE; |
30667bf3 | 2025 | } |
30667bf3 | 2026 | |
d5c73c2f AM |
2027 | /* This function is called via elf_link_hash_traverse to force |
2028 | millicode symbols local so they do not end up as globals in the | |
2029 | dynamic symbol table. We ought to be able to do this in | |
2030 | adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called | |
2031 | for all dynamic symbols. Arguably, this is a bug in | |
2032 | elf_adjust_dynamic_symbol. */ | |
2033 | ||
b34976b6 | 2034 | static bfd_boolean |
875c0872 | 2035 | clobber_millicode_symbols (struct elf_link_hash_entry *eh, |
c39a58e6 | 2036 | struct bfd_link_info *info) |
d5c73c2f | 2037 | { |
875c0872 DA |
2038 | if (eh->type == STT_PARISC_MILLI |
2039 | && !eh->forced_local) | |
e0522e89 | 2040 | { |
875c0872 | 2041 | elf32_hppa_hide_symbol (info, eh, TRUE); |
e0522e89 | 2042 | } |
b34976b6 | 2043 | return TRUE; |
d5c73c2f AM |
2044 | } |
2045 | ||
30667bf3 AM |
2046 | /* Set the sizes of the dynamic sections. */ |
2047 | ||
b34976b6 | 2048 | static bfd_boolean |
c39a58e6 AM |
2049 | elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, |
2050 | struct bfd_link_info *info) | |
30667bf3 | 2051 | { |
83c81bfe | 2052 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2053 | bfd *dynobj; |
98ceb8ce | 2054 | bfd *ibfd; |
875c0872 | 2055 | asection *sec; |
b34976b6 | 2056 | bfd_boolean relocs; |
30667bf3 | 2057 | |
83c81bfe | 2058 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2059 | if (htab == NULL) |
2060 | return FALSE; | |
2061 | ||
a63e02c7 | 2062 | dynobj = htab->etab.dynobj; |
49e9d0d3 AM |
2063 | if (dynobj == NULL) |
2064 | abort (); | |
30667bf3 | 2065 | |
a63e02c7 | 2066 | if (htab->etab.dynamic_sections_created) |
30667bf3 AM |
2067 | { |
2068 | /* Set the contents of the .interp section to the interpreter. */ | |
9b8b325a | 2069 | if (bfd_link_executable (info) && !info->nointerp) |
30667bf3 | 2070 | { |
3d4d4302 | 2071 | sec = bfd_get_linker_section (dynobj, ".interp"); |
875c0872 | 2072 | if (sec == NULL) |
49e9d0d3 | 2073 | abort (); |
875c0872 DA |
2074 | sec->size = sizeof ELF_DYNAMIC_INTERPRETER; |
2075 | sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; | |
30667bf3 | 2076 | } |
74d1c347 | 2077 | |
d5c73c2f | 2078 | /* Force millicode symbols local. */ |
a63e02c7 | 2079 | elf_link_hash_traverse (&htab->etab, |
d5c73c2f AM |
2080 | clobber_millicode_symbols, |
2081 | info); | |
68fb2e56 | 2082 | } |
d5c73c2f | 2083 | |
98ceb8ce AM |
2084 | /* Set up .got and .plt offsets for local syms, and space for local |
2085 | dynamic relocs. */ | |
c72f2fb2 | 2086 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
68fb2e56 AM |
2087 | { |
2088 | bfd_signed_vma *local_got; | |
2089 | bfd_signed_vma *end_local_got; | |
2090 | bfd_signed_vma *local_plt; | |
2091 | bfd_signed_vma *end_local_plt; | |
2092 | bfd_size_type locsymcount; | |
2093 | Elf_Internal_Shdr *symtab_hdr; | |
2094 | asection *srel; | |
9b52905e | 2095 | char *local_tls_type; |
74d1c347 | 2096 | |
98ceb8ce | 2097 | if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour) |
68fb2e56 | 2098 | continue; |
4dc86686 | 2099 | |
875c0872 | 2100 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
98ceb8ce | 2101 | { |
3bf083ed | 2102 | struct elf_dyn_relocs *hdh_p; |
98ceb8ce | 2103 | |
3bf083ed | 2104 | for (hdh_p = ((struct elf_dyn_relocs *) |
875c0872 DA |
2105 | elf_section_data (sec)->local_dynrel); |
2106 | hdh_p != NULL; | |
3bf083ed | 2107 | hdh_p = hdh_p->next) |
98ceb8ce | 2108 | { |
875c0872 DA |
2109 | if (!bfd_is_abs_section (hdh_p->sec) |
2110 | && bfd_is_abs_section (hdh_p->sec->output_section)) | |
ec338859 AM |
2111 | { |
2112 | /* Input section has been discarded, either because | |
2113 | it is a copy of a linkonce section or due to | |
2114 | linker script /DISCARD/, so we'll be discarding | |
2115 | the relocs too. */ | |
2116 | } | |
875c0872 | 2117 | else if (hdh_p->count != 0) |
ec338859 | 2118 | { |
875c0872 DA |
2119 | srel = elf_section_data (hdh_p->sec)->sreloc; |
2120 | srel->size += hdh_p->count * sizeof (Elf32_External_Rela); | |
2121 | if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0) | |
248866a8 | 2122 | info->flags |= DF_TEXTREL; |
ec338859 | 2123 | } |
98ceb8ce AM |
2124 | } |
2125 | } | |
2126 | ||
2127 | local_got = elf_local_got_refcounts (ibfd); | |
68fb2e56 AM |
2128 | if (!local_got) |
2129 | continue; | |
74d1c347 | 2130 | |
98ceb8ce | 2131 | symtab_hdr = &elf_tdata (ibfd)->symtab_hdr; |
68fb2e56 AM |
2132 | locsymcount = symtab_hdr->sh_info; |
2133 | end_local_got = local_got + locsymcount; | |
9b52905e | 2134 | local_tls_type = hppa_elf_local_got_tls_type (ibfd); |
ce558b89 AM |
2135 | sec = htab->etab.sgot; |
2136 | srel = htab->etab.srelgot; | |
68fb2e56 AM |
2137 | for (; local_got < end_local_got; ++local_got) |
2138 | { | |
2139 | if (*local_got > 0) | |
4dc86686 | 2140 | { |
2e684e75 AM |
2141 | unsigned int need; |
2142 | ||
875c0872 | 2143 | *local_got = sec->size; |
2e684e75 AM |
2144 | need = got_entries_needed (*local_tls_type); |
2145 | sec->size += need; | |
4352556b AM |
2146 | if (bfd_link_dll (info) |
2147 | || (bfd_link_pic (info) | |
2148 | && (*local_tls_type & GOT_NORMAL) != 0)) | |
2149 | htab->etab.srelgot->size | |
2150 | += got_relocs_needed (*local_tls_type, need, TRUE, | |
2151 | bfd_link_executable (info)); | |
4dc86686 | 2152 | } |
68fb2e56 AM |
2153 | else |
2154 | *local_got = (bfd_vma) -1; | |
9b52905e NC |
2155 | |
2156 | ++local_tls_type; | |
68fb2e56 | 2157 | } |
74d1c347 | 2158 | |
68fb2e56 AM |
2159 | local_plt = end_local_got; |
2160 | end_local_plt = local_plt + locsymcount; | |
a63e02c7 | 2161 | if (! htab->etab.dynamic_sections_created) |
68fb2e56 AM |
2162 | { |
2163 | /* Won't be used, but be safe. */ | |
2164 | for (; local_plt < end_local_plt; ++local_plt) | |
2165 | *local_plt = (bfd_vma) -1; | |
2166 | } | |
2167 | else | |
2168 | { | |
ce558b89 AM |
2169 | sec = htab->etab.splt; |
2170 | srel = htab->etab.srelplt; | |
74d1c347 AM |
2171 | for (; local_plt < end_local_plt; ++local_plt) |
2172 | { | |
2173 | if (*local_plt > 0) | |
2174 | { | |
875c0872 DA |
2175 | *local_plt = sec->size; |
2176 | sec->size += PLT_ENTRY_SIZE; | |
0e1862bb | 2177 | if (bfd_link_pic (info)) |
eea6121a | 2178 | srel->size += sizeof (Elf32_External_Rela); |
74d1c347 AM |
2179 | } |
2180 | else | |
2181 | *local_plt = (bfd_vma) -1; | |
2182 | } | |
2183 | } | |
30667bf3 | 2184 | } |
68ffbac6 | 2185 | |
9b52905e NC |
2186 | if (htab->tls_ldm_got.refcount > 0) |
2187 | { | |
68ffbac6 | 2188 | /* Allocate 2 got entries and 1 dynamic reloc for |
07d6d2b8 | 2189 | R_PARISC_TLS_DTPMOD32 relocs. */ |
ce558b89 AM |
2190 | htab->tls_ldm_got.offset = htab->etab.sgot->size; |
2191 | htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2); | |
2192 | htab->etab.srelgot->size += sizeof (Elf32_External_Rela); | |
9b52905e NC |
2193 | } |
2194 | else | |
2195 | htab->tls_ldm_got.offset = -1; | |
30667bf3 | 2196 | |
e5ee5df1 AM |
2197 | /* Do all the .plt entries without relocs first. The dynamic linker |
2198 | uses the last .plt reloc to find the end of the .plt (and hence | |
2199 | the start of the .got) for lazy linking. */ | |
a63e02c7 | 2200 | elf_link_hash_traverse (&htab->etab, allocate_plt_static, info); |
a8d02d66 | 2201 | |
98ceb8ce AM |
2202 | /* Allocate global sym .plt and .got entries, and space for global |
2203 | sym dynamic relocs. */ | |
a63e02c7 | 2204 | elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info); |
30667bf3 AM |
2205 | |
2206 | /* The check_relocs and adjust_dynamic_symbol entry points have | |
2207 | determined the sizes of the various dynamic sections. Allocate | |
2208 | memory for them. */ | |
b34976b6 | 2209 | relocs = FALSE; |
875c0872 | 2210 | for (sec = dynobj->sections; sec != NULL; sec = sec->next) |
30667bf3 | 2211 | { |
875c0872 | 2212 | if ((sec->flags & SEC_LINKER_CREATED) == 0) |
30667bf3 AM |
2213 | continue; |
2214 | ||
ce558b89 | 2215 | if (sec == htab->etab.splt) |
68fb2e56 | 2216 | { |
83c81bfe | 2217 | if (htab->need_plt_stub) |
68fb2e56 AM |
2218 | { |
2219 | /* Make space for the plt stub at the end of the .plt | |
2220 | section. We want this stub right at the end, up | |
2221 | against the .got section. */ | |
fd361982 AM |
2222 | int gotalign = bfd_section_alignment (htab->etab.sgot); |
2223 | int pltalign = bfd_section_alignment (sec); | |
2c9e9550 | 2224 | int align = gotalign > 3 ? gotalign : 3; |
68fb2e56 | 2225 | bfd_size_type mask; |
30667bf3 | 2226 | |
2c9e9550 JDA |
2227 | if (align > pltalign) |
2228 | bfd_set_section_alignment (sec, align); | |
68fb2e56 | 2229 | mask = ((bfd_size_type) 1 << gotalign) - 1; |
875c0872 | 2230 | sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask; |
68fb2e56 AM |
2231 | } |
2232 | } | |
ce558b89 | 2233 | else if (sec == htab->etab.sgot |
5474d94f AM |
2234 | || sec == htab->etab.sdynbss |
2235 | || sec == htab->etab.sdynrelro) | |
68fb2e56 | 2236 | ; |
fd361982 | 2237 | else if (CONST_STRNEQ (bfd_section_name (sec), ".rela")) |
30667bf3 | 2238 | { |
875c0872 | 2239 | if (sec->size != 0) |
30667bf3 | 2240 | { |
4e12ff7f AM |
2241 | /* Remember whether there are any reloc sections other |
2242 | than .rela.plt. */ | |
ce558b89 | 2243 | if (sec != htab->etab.srelplt) |
b34976b6 | 2244 | relocs = TRUE; |
47d89dba | 2245 | |
30667bf3 AM |
2246 | /* We use the reloc_count field as a counter if we need |
2247 | to copy relocs into the output file. */ | |
875c0872 | 2248 | sec->reloc_count = 0; |
30667bf3 AM |
2249 | } |
2250 | } | |
30667bf3 AM |
2251 | else |
2252 | { | |
2253 | /* It's not one of our sections, so don't allocate space. */ | |
2254 | continue; | |
2255 | } | |
2256 | ||
875c0872 | 2257 | if (sec->size == 0) |
30667bf3 AM |
2258 | { |
2259 | /* If we don't need this section, strip it from the | |
2260 | output file. This is mostly to handle .rela.bss and | |
2261 | .rela.plt. We must create both sections in | |
2262 | create_dynamic_sections, because they must be created | |
2263 | before the linker maps input sections to output | |
2264 | sections. The linker does that before | |
2265 | adjust_dynamic_symbol is called, and it is that | |
2266 | function which decides whether anything needs to go | |
2267 | into these sections. */ | |
875c0872 | 2268 | sec->flags |= SEC_EXCLUDE; |
30667bf3 AM |
2269 | continue; |
2270 | } | |
2271 | ||
c456f082 AM |
2272 | if ((sec->flags & SEC_HAS_CONTENTS) == 0) |
2273 | continue; | |
2274 | ||
30667bf3 AM |
2275 | /* Allocate memory for the section contents. Zero it, because |
2276 | we may not fill in all the reloc sections. */ | |
875c0872 | 2277 | sec->contents = bfd_zalloc (dynobj, sec->size); |
c456f082 | 2278 | if (sec->contents == NULL) |
b34976b6 | 2279 | return FALSE; |
30667bf3 AM |
2280 | } |
2281 | ||
3084d7a2 | 2282 | return _bfd_elf_add_dynamic_tags (output_bfd, info, relocs); |
30667bf3 AM |
2283 | } |
2284 | ||
30667bf3 AM |
2285 | /* External entry points for sizing and building linker stubs. */ |
2286 | ||
b4655ea9 AM |
2287 | /* Set up various things so that we can make a list of input sections |
2288 | for each output section included in the link. Returns -1 on error, | |
cedb70c5 | 2289 | 0 when no stubs will be needed, and 1 on success. */ |
30667bf3 | 2290 | |
b4655ea9 | 2291 | int |
c39a58e6 | 2292 | elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info) |
30667bf3 AM |
2293 | { |
2294 | bfd *input_bfd; | |
b4655ea9 | 2295 | unsigned int bfd_count; |
7292b3ac | 2296 | unsigned int top_id, top_index; |
30667bf3 | 2297 | asection *section; |
25f72752 | 2298 | asection **input_list, **list; |
986f0783 | 2299 | size_t amt; |
b4655ea9 | 2300 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
30667bf3 | 2301 | |
4dfe6ac6 NC |
2302 | if (htab == NULL) |
2303 | return -1; | |
2304 | ||
1badb539 AM |
2305 | /* Count the number of input BFDs and find the top input section id. */ |
2306 | for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0; | |
30667bf3 | 2307 | input_bfd != NULL; |
c72f2fb2 | 2308 | input_bfd = input_bfd->link.next) |
30667bf3 AM |
2309 | { |
2310 | bfd_count += 1; | |
25f72752 AM |
2311 | for (section = input_bfd->sections; |
2312 | section != NULL; | |
2313 | section = section->next) | |
2314 | { | |
2315 | if (top_id < section->id) | |
2316 | top_id = section->id; | |
2317 | } | |
30667bf3 | 2318 | } |
b4655ea9 | 2319 | htab->bfd_count = bfd_count; |
30667bf3 | 2320 | |
dc810e39 | 2321 | amt = sizeof (struct map_stub) * (top_id + 1); |
c39a58e6 | 2322 | htab->stub_group = bfd_zmalloc (amt); |
83c81bfe | 2323 | if (htab->stub_group == NULL) |
b4655ea9 | 2324 | return -1; |
1badb539 | 2325 | |
b4655ea9 | 2326 | /* We can't use output_bfd->section_count here to find the top output |
1badb539 | 2327 | section index as some sections may have been removed, and |
8423293d | 2328 | strip_excluded_output_sections doesn't renumber the indices. */ |
1badb539 AM |
2329 | for (section = output_bfd->sections, top_index = 0; |
2330 | section != NULL; | |
2331 | section = section->next) | |
2332 | { | |
2333 | if (top_index < section->index) | |
2334 | top_index = section->index; | |
2335 | } | |
2336 | ||
b4655ea9 | 2337 | htab->top_index = top_index; |
dc810e39 | 2338 | amt = sizeof (asection *) * (top_index + 1); |
c39a58e6 | 2339 | input_list = bfd_malloc (amt); |
b4655ea9 | 2340 | htab->input_list = input_list; |
25f72752 | 2341 | if (input_list == NULL) |
b4655ea9 | 2342 | return -1; |
25f72752 | 2343 | |
1badb539 AM |
2344 | /* For sections we aren't interested in, mark their entries with a |
2345 | value we can check later. */ | |
2346 | list = input_list + top_index; | |
2347 | do | |
2348 | *list = bfd_abs_section_ptr; | |
2349 | while (list-- != input_list); | |
2350 | ||
2351 | for (section = output_bfd->sections; | |
2352 | section != NULL; | |
2353 | section = section->next) | |
2354 | { | |
47d89dba | 2355 | if ((section->flags & SEC_CODE) != 0) |
1badb539 AM |
2356 | input_list[section->index] = NULL; |
2357 | } | |
2358 | ||
b4655ea9 AM |
2359 | return 1; |
2360 | } | |
2361 | ||
2362 | /* The linker repeatedly calls this function for each input section, | |
2363 | in the order that input sections are linked into output sections. | |
2364 | Build lists of input sections to determine groupings between which | |
2365 | we may insert linker stubs. */ | |
2366 | ||
2367 | void | |
c39a58e6 | 2368 | elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec) |
b4655ea9 AM |
2369 | { |
2370 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
2371 | ||
4dfe6ac6 NC |
2372 | if (htab == NULL) |
2373 | return; | |
2374 | ||
b4655ea9 | 2375 | if (isec->output_section->index <= htab->top_index) |
25f72752 | 2376 | { |
b4655ea9 AM |
2377 | asection **list = htab->input_list + isec->output_section->index; |
2378 | if (*list != bfd_abs_section_ptr) | |
25f72752 | 2379 | { |
b4655ea9 | 2380 | /* Steal the link_sec pointer for our list. */ |
83c81bfe | 2381 | #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec) |
b4655ea9 AM |
2382 | /* This happens to make the list in reverse order, |
2383 | which is what we want. */ | |
2384 | PREV_SEC (isec) = *list; | |
2385 | *list = isec; | |
25f72752 AM |
2386 | } |
2387 | } | |
b4655ea9 | 2388 | } |
25f72752 | 2389 | |
b4655ea9 AM |
2390 | /* See whether we can group stub sections together. Grouping stub |
2391 | sections may result in fewer stubs. More importantly, we need to | |
2392 | put all .init* and .fini* stubs at the beginning of the .init or | |
2393 | .fini output sections respectively, because glibc splits the | |
2394 | _init and _fini functions into multiple parts. Putting a stub in | |
2395 | the middle of a function is not a good idea. */ | |
2396 | ||
2397 | static void | |
c39a58e6 AM |
2398 | group_sections (struct elf32_hppa_link_hash_table *htab, |
2399 | bfd_size_type stub_group_size, | |
2400 | bfd_boolean stubs_always_before_branch) | |
b4655ea9 AM |
2401 | { |
2402 | asection **list = htab->input_list + htab->top_index; | |
1badb539 | 2403 | do |
25f72752 AM |
2404 | { |
2405 | asection *tail = *list; | |
1badb539 AM |
2406 | if (tail == bfd_abs_section_ptr) |
2407 | continue; | |
25f72752 AM |
2408 | while (tail != NULL) |
2409 | { | |
2410 | asection *curr; | |
2411 | asection *prev; | |
2412 | bfd_size_type total; | |
00b28bb0 | 2413 | bfd_boolean big_sec; |
25f72752 AM |
2414 | |
2415 | curr = tail; | |
eea6121a | 2416 | total = tail->size; |
00b28bb0 AM |
2417 | big_sec = total >= stub_group_size; |
2418 | ||
25f72752 AM |
2419 | while ((prev = PREV_SEC (curr)) != NULL |
2420 | && ((total += curr->output_offset - prev->output_offset) | |
47d89dba | 2421 | < stub_group_size)) |
25f72752 AM |
2422 | curr = prev; |
2423 | ||
2424 | /* OK, the size from the start of CURR to the end is less | |
a248e267 | 2425 | than 240000 bytes and thus can be handled by one stub |
25f72752 | 2426 | section. (or the tail section is itself larger than |
a248e267 | 2427 | 240000 bytes, in which case we may be toast.) |
25f72752 AM |
2428 | We should really be keeping track of the total size of |
2429 | stubs added here, as stubs contribute to the final output | |
2430 | section size. That's a little tricky, and this way will | |
a248e267 AM |
2431 | only break if stubs added total more than 22144 bytes, or |
2432 | 2768 long branch stubs. It seems unlikely for more than | |
2433 | 2768 different functions to be called, especially from | |
2434 | code only 240000 bytes long. This limit used to be | |
2435 | 250000, but c++ code tends to generate lots of little | |
2436 | functions, and sometimes violated the assumption. */ | |
25f72752 AM |
2437 | do |
2438 | { | |
2439 | prev = PREV_SEC (tail); | |
2440 | /* Set up this stub group. */ | |
83c81bfe | 2441 | htab->stub_group[tail->id].link_sec = curr; |
25f72752 AM |
2442 | } |
2443 | while (tail != curr && (tail = prev) != NULL); | |
2444 | ||
a248e267 | 2445 | /* But wait, there's more! Input sections up to 240000 |
00b28bb0 AM |
2446 | bytes before the stub section can be handled by it too. |
2447 | Don't do this if we have a really large section after the | |
2448 | stubs, as adding more stubs increases the chance that | |
2449 | branches may not reach into the stub section. */ | |
2450 | if (!stubs_always_before_branch && !big_sec) | |
25f72752 | 2451 | { |
47d89dba AM |
2452 | total = 0; |
2453 | while (prev != NULL | |
2454 | && ((total += tail->output_offset - prev->output_offset) | |
2455 | < stub_group_size)) | |
2456 | { | |
2457 | tail = prev; | |
2458 | prev = PREV_SEC (tail); | |
83c81bfe | 2459 | htab->stub_group[tail->id].link_sec = curr; |
47d89dba | 2460 | } |
25f72752 AM |
2461 | } |
2462 | tail = prev; | |
2463 | } | |
2464 | } | |
b4655ea9 AM |
2465 | while (list-- != htab->input_list); |
2466 | free (htab->input_list); | |
1badb539 | 2467 | #undef PREV_SEC |
b4655ea9 AM |
2468 | } |
2469 | ||
2470 | /* Read in all local syms for all input bfds, and create hash entries | |
2471 | for export stubs if we are building a multi-subspace shared lib. | |
2472 | Returns -1 on error, 1 if export stubs created, 0 otherwise. */ | |
2473 | ||
2474 | static int | |
c39a58e6 | 2475 | get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info) |
b4655ea9 AM |
2476 | { |
2477 | unsigned int bfd_indx; | |
2478 | Elf_Internal_Sym *local_syms, **all_local_syms; | |
2479 | int stub_changed = 0; | |
2480 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); | |
30667bf3 | 2481 | |
4dfe6ac6 NC |
2482 | if (htab == NULL) |
2483 | return -1; | |
2484 | ||
30667bf3 AM |
2485 | /* We want to read in symbol extension records only once. To do this |
2486 | we need to read in the local symbols in parallel and save them for | |
2487 | later use; so hold pointers to the local symbols in an array. */ | |
986f0783 | 2488 | size_t amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count; |
c39a58e6 | 2489 | all_local_syms = bfd_zmalloc (amt); |
b4655ea9 | 2490 | htab->all_local_syms = all_local_syms; |
30667bf3 | 2491 | if (all_local_syms == NULL) |
b4655ea9 | 2492 | return -1; |
30667bf3 AM |
2493 | |
2494 | /* Walk over all the input BFDs, swapping in local symbols. | |
2495 | If we are creating a shared library, create hash entries for the | |
2496 | export stubs. */ | |
b4655ea9 | 2497 | for (bfd_indx = 0; |
30667bf3 | 2498 | input_bfd != NULL; |
c72f2fb2 | 2499 | input_bfd = input_bfd->link.next, bfd_indx++) |
30667bf3 AM |
2500 | { |
2501 | Elf_Internal_Shdr *symtab_hdr; | |
edd21aca | 2502 | |
252b5132 RH |
2503 | /* We'll need the symbol table in a second. */ |
2504 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2505 | if (symtab_hdr->sh_info == 0) | |
2506 | continue; | |
2507 | ||
6cdc0ccc AM |
2508 | /* We need an array of the local symbols attached to the input bfd. */ |
2509 | local_syms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
edd21aca | 2510 | if (local_syms == NULL) |
edd21aca | 2511 | { |
6cdc0ccc AM |
2512 | local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr, |
2513 | symtab_hdr->sh_info, 0, | |
2514 | NULL, NULL, NULL); | |
2515 | /* Cache them for elf_link_input_bfd. */ | |
2516 | symtab_hdr->contents = (unsigned char *) local_syms; | |
edd21aca | 2517 | } |
6cdc0ccc AM |
2518 | if (local_syms == NULL) |
2519 | return -1; | |
edd21aca | 2520 | |
6cdc0ccc | 2521 | all_local_syms[bfd_indx] = local_syms; |
edd21aca | 2522 | |
0e1862bb | 2523 | if (bfd_link_pic (info) && htab->multi_subspace) |
30667bf3 | 2524 | { |
875c0872 DA |
2525 | struct elf_link_hash_entry **eh_syms; |
2526 | struct elf_link_hash_entry **eh_symend; | |
30667bf3 AM |
2527 | unsigned int symcount; |
2528 | ||
2529 | symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym) | |
2530 | - symtab_hdr->sh_info); | |
875c0872 DA |
2531 | eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd); |
2532 | eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount); | |
30667bf3 AM |
2533 | |
2534 | /* Look through the global syms for functions; We need to | |
2535 | build export stubs for all globally visible functions. */ | |
875c0872 | 2536 | for (; eh_syms < eh_symend; eh_syms++) |
30667bf3 | 2537 | { |
875c0872 | 2538 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 | 2539 | |
875c0872 | 2540 | hh = hppa_elf_hash_entry (*eh_syms); |
30667bf3 | 2541 | |
a63e02c7 DA |
2542 | while (hh->eh.root.type == bfd_link_hash_indirect |
2543 | || hh->eh.root.type == bfd_link_hash_warning) | |
2544 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
30667bf3 AM |
2545 | |
2546 | /* At this point in the link, undefined syms have been | |
2547 | resolved, so we need to check that the symbol was | |
2548 | defined in this BFD. */ | |
a63e02c7 DA |
2549 | if ((hh->eh.root.type == bfd_link_hash_defined |
2550 | || hh->eh.root.type == bfd_link_hash_defweak) | |
2551 | && hh->eh.type == STT_FUNC | |
2552 | && hh->eh.root.u.def.section->output_section != NULL | |
2553 | && (hh->eh.root.u.def.section->output_section->owner | |
25f72752 | 2554 | == output_bfd) |
a63e02c7 DA |
2555 | && hh->eh.root.u.def.section->owner == input_bfd |
2556 | && hh->eh.def_regular | |
2557 | && !hh->eh.forced_local | |
2558 | && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT) | |
30667bf3 AM |
2559 | { |
2560 | asection *sec; | |
2561 | const char *stub_name; | |
875c0872 | 2562 | struct elf32_hppa_stub_hash_entry *hsh; |
30667bf3 | 2563 | |
a63e02c7 | 2564 | sec = hh->eh.root.u.def.section; |
9b52905e | 2565 | stub_name = hh_name (hh); |
a63e02c7 | 2566 | hsh = hppa_stub_hash_lookup (&htab->bstab, |
30667bf3 | 2567 | stub_name, |
b34976b6 | 2568 | FALSE, FALSE); |
875c0872 | 2569 | if (hsh == NULL) |
30667bf3 | 2570 | { |
875c0872 DA |
2571 | hsh = hppa_add_stub (stub_name, sec, htab); |
2572 | if (!hsh) | |
b4655ea9 | 2573 | return -1; |
30667bf3 | 2574 | |
a63e02c7 DA |
2575 | hsh->target_value = hh->eh.root.u.def.value; |
2576 | hsh->target_section = hh->eh.root.u.def.section; | |
875c0872 | 2577 | hsh->stub_type = hppa_stub_export; |
a63e02c7 | 2578 | hsh->hh = hh; |
30667bf3 AM |
2579 | stub_changed = 1; |
2580 | } | |
2581 | else | |
2582 | { | |
695344c0 | 2583 | /* xgettext:c-format */ |
871b3ab2 | 2584 | _bfd_error_handler (_("%pB: duplicate export stub %s"), |
4eca0228 | 2585 | input_bfd, stub_name); |
30667bf3 AM |
2586 | } |
2587 | } | |
2588 | } | |
30667bf3 AM |
2589 | } |
2590 | } | |
edd21aca | 2591 | |
b4655ea9 AM |
2592 | return stub_changed; |
2593 | } | |
2594 | ||
2595 | /* Determine and set the size of the stub section for a final link. | |
2596 | ||
2597 | The basic idea here is to examine all the relocations looking for | |
2598 | PC-relative calls to a target that is unreachable with a "bl" | |
2599 | instruction. */ | |
2600 | ||
b34976b6 | 2601 | bfd_boolean |
c39a58e6 AM |
2602 | elf32_hppa_size_stubs |
2603 | (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info, | |
2604 | bfd_boolean multi_subspace, bfd_signed_vma group_size, | |
2605 | asection * (*add_stub_section) (const char *, asection *), | |
2606 | void (*layout_sections_again) (void)) | |
b4655ea9 AM |
2607 | { |
2608 | bfd_size_type stub_group_size; | |
b34976b6 AM |
2609 | bfd_boolean stubs_always_before_branch; |
2610 | bfd_boolean stub_changed; | |
b4655ea9 AM |
2611 | struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info); |
2612 | ||
4dfe6ac6 NC |
2613 | if (htab == NULL) |
2614 | return FALSE; | |
2615 | ||
b4655ea9 AM |
2616 | /* Stash our params away. */ |
2617 | htab->stub_bfd = stub_bfd; | |
2618 | htab->multi_subspace = multi_subspace; | |
2619 | htab->add_stub_section = add_stub_section; | |
2620 | htab->layout_sections_again = layout_sections_again; | |
2621 | stubs_always_before_branch = group_size < 0; | |
2622 | if (group_size < 0) | |
2623 | stub_group_size = -group_size; | |
2624 | else | |
2625 | stub_group_size = group_size; | |
2626 | if (stub_group_size == 1) | |
2627 | { | |
2628 | /* Default values. */ | |
acc990f2 AM |
2629 | if (stubs_always_before_branch) |
2630 | { | |
2631 | stub_group_size = 7680000; | |
2632 | if (htab->has_17bit_branch || htab->multi_subspace) | |
2633 | stub_group_size = 240000; | |
2634 | if (htab->has_12bit_branch) | |
2635 | stub_group_size = 7500; | |
2636 | } | |
2637 | else | |
2638 | { | |
2639 | stub_group_size = 6971392; | |
2640 | if (htab->has_17bit_branch || htab->multi_subspace) | |
2641 | stub_group_size = 217856; | |
2642 | if (htab->has_12bit_branch) | |
2643 | stub_group_size = 6808; | |
2644 | } | |
b4655ea9 AM |
2645 | } |
2646 | ||
2647 | group_sections (htab, stub_group_size, stubs_always_before_branch); | |
2648 | ||
2649 | switch (get_local_syms (output_bfd, info->input_bfds, info)) | |
2650 | { | |
2651 | default: | |
2652 | if (htab->all_local_syms) | |
2653 | goto error_ret_free_local; | |
b34976b6 | 2654 | return FALSE; |
b4655ea9 AM |
2655 | |
2656 | case 0: | |
b34976b6 | 2657 | stub_changed = FALSE; |
b4655ea9 AM |
2658 | break; |
2659 | ||
2660 | case 1: | |
b34976b6 | 2661 | stub_changed = TRUE; |
b4655ea9 AM |
2662 | break; |
2663 | } | |
2664 | ||
edd21aca AM |
2665 | while (1) |
2666 | { | |
b4655ea9 AM |
2667 | bfd *input_bfd; |
2668 | unsigned int bfd_indx; | |
30667bf3 AM |
2669 | asection *stub_sec; |
2670 | ||
25f72752 | 2671 | for (input_bfd = info->input_bfds, bfd_indx = 0; |
30667bf3 | 2672 | input_bfd != NULL; |
c72f2fb2 | 2673 | input_bfd = input_bfd->link.next, bfd_indx++) |
30667bf3 AM |
2674 | { |
2675 | Elf_Internal_Shdr *symtab_hdr; | |
b4655ea9 AM |
2676 | asection *section; |
2677 | Elf_Internal_Sym *local_syms; | |
30667bf3 AM |
2678 | |
2679 | /* We'll need the symbol table in a second. */ | |
2680 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
2681 | if (symtab_hdr->sh_info == 0) | |
2682 | continue; | |
2683 | ||
b4655ea9 | 2684 | local_syms = htab->all_local_syms[bfd_indx]; |
30667bf3 AM |
2685 | |
2686 | /* Walk over each section attached to the input bfd. */ | |
2687 | for (section = input_bfd->sections; | |
2688 | section != NULL; | |
25f72752 | 2689 | section = section->next) |
30667bf3 | 2690 | { |
30667bf3 AM |
2691 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
2692 | ||
2693 | /* If there aren't any relocs, then there's nothing more | |
2694 | to do. */ | |
2695 | if ((section->flags & SEC_RELOC) == 0 | |
215f5271 AM |
2696 | || (section->flags & SEC_ALLOC) == 0 |
2697 | || (section->flags & SEC_LOAD) == 0 | |
2698 | || (section->flags & SEC_CODE) == 0 | |
30667bf3 AM |
2699 | || section->reloc_count == 0) |
2700 | continue; | |
2701 | ||
25f72752 AM |
2702 | /* If this section is a link-once section that will be |
2703 | discarded, then don't create any stubs. */ | |
2704 | if (section->output_section == NULL | |
2705 | || section->output_section->owner != output_bfd) | |
2706 | continue; | |
2707 | ||
1e2f5b6e AM |
2708 | /* Get the relocs. */ |
2709 | internal_relocs | |
c39a58e6 | 2710 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
45d6a902 | 2711 | info->keep_memory); |
30667bf3 | 2712 | if (internal_relocs == NULL) |
1e2f5b6e | 2713 | goto error_ret_free_local; |
30667bf3 AM |
2714 | |
2715 | /* Now examine each relocation. */ | |
2716 | irela = internal_relocs; | |
2717 | irelaend = irela + section->reloc_count; | |
2718 | for (; irela < irelaend; irela++) | |
2719 | { | |
2720 | unsigned int r_type, r_indx; | |
2721 | enum elf32_hppa_stub_type stub_type; | |
875c0872 | 2722 | struct elf32_hppa_stub_hash_entry *hsh; |
30667bf3 AM |
2723 | asection *sym_sec; |
2724 | bfd_vma sym_value; | |
2725 | bfd_vma destination; | |
875c0872 | 2726 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 | 2727 | char *stub_name; |
25f72752 | 2728 | const asection *id_sec; |
30667bf3 AM |
2729 | |
2730 | r_type = ELF32_R_TYPE (irela->r_info); | |
2731 | r_indx = ELF32_R_SYM (irela->r_info); | |
2732 | ||
2733 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) | |
2734 | { | |
2735 | bfd_set_error (bfd_error_bad_value); | |
1e2f5b6e AM |
2736 | error_ret_free_internal: |
2737 | if (elf_section_data (section)->relocs == NULL) | |
2738 | free (internal_relocs); | |
2739 | goto error_ret_free_local; | |
30667bf3 AM |
2740 | } |
2741 | ||
2742 | /* Only look for stubs on call instructions. */ | |
2743 | if (r_type != (unsigned int) R_PARISC_PCREL12F | |
2744 | && r_type != (unsigned int) R_PARISC_PCREL17F | |
2745 | && r_type != (unsigned int) R_PARISC_PCREL22F) | |
2746 | continue; | |
2747 | ||
2748 | /* Now determine the call target, its name, value, | |
2749 | section. */ | |
2750 | sym_sec = NULL; | |
2751 | sym_value = 0; | |
f6a8b8c7 | 2752 | destination = -1; |
875c0872 | 2753 | hh = NULL; |
30667bf3 AM |
2754 | if (r_indx < symtab_hdr->sh_info) |
2755 | { | |
2756 | /* It's a local symbol. */ | |
2757 | Elf_Internal_Sym *sym; | |
2758 | Elf_Internal_Shdr *hdr; | |
4fbb74a6 | 2759 | unsigned int shndx; |
30667bf3 AM |
2760 | |
2761 | sym = local_syms + r_indx; | |
30667bf3 AM |
2762 | if (ELF_ST_TYPE (sym->st_info) != STT_SECTION) |
2763 | sym_value = sym->st_value; | |
4fbb74a6 AM |
2764 | shndx = sym->st_shndx; |
2765 | if (shndx < elf_numsections (input_bfd)) | |
2766 | { | |
2767 | hdr = elf_elfsections (input_bfd)[shndx]; | |
2768 | sym_sec = hdr->bfd_section; | |
2769 | destination = (sym_value + irela->r_addend | |
2770 | + sym_sec->output_offset | |
2771 | + sym_sec->output_section->vma); | |
2772 | } | |
30667bf3 AM |
2773 | } |
2774 | else | |
2775 | { | |
2776 | /* It's an external symbol. */ | |
2777 | int e_indx; | |
2778 | ||
2779 | e_indx = r_indx - symtab_hdr->sh_info; | |
875c0872 | 2780 | hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]); |
30667bf3 | 2781 | |
a63e02c7 DA |
2782 | while (hh->eh.root.type == bfd_link_hash_indirect |
2783 | || hh->eh.root.type == bfd_link_hash_warning) | |
2784 | hh = hppa_elf_hash_entry (hh->eh.root.u.i.link); | |
30667bf3 | 2785 | |
a63e02c7 DA |
2786 | if (hh->eh.root.type == bfd_link_hash_defined |
2787 | || hh->eh.root.type == bfd_link_hash_defweak) | |
30667bf3 | 2788 | { |
a63e02c7 DA |
2789 | sym_sec = hh->eh.root.u.def.section; |
2790 | sym_value = hh->eh.root.u.def.value; | |
30667bf3 AM |
2791 | if (sym_sec->output_section != NULL) |
2792 | destination = (sym_value + irela->r_addend | |
2793 | + sym_sec->output_offset | |
2794 | + sym_sec->output_section->vma); | |
2795 | } | |
a63e02c7 | 2796 | else if (hh->eh.root.type == bfd_link_hash_undefweak) |
c432ba1a | 2797 | { |
0e1862bb | 2798 | if (! bfd_link_pic (info)) |
c432ba1a AM |
2799 | continue; |
2800 | } | |
a63e02c7 | 2801 | else if (hh->eh.root.type == bfd_link_hash_undefined) |
c432ba1a | 2802 | { |
59c2e50f | 2803 | if (! (info->unresolved_syms_in_objects == RM_IGNORE |
a63e02c7 | 2804 | && (ELF_ST_VISIBILITY (hh->eh.other) |
c432ba1a | 2805 | == STV_DEFAULT) |
a63e02c7 | 2806 | && hh->eh.type != STT_PARISC_MILLI)) |
c432ba1a AM |
2807 | continue; |
2808 | } | |
30667bf3 AM |
2809 | else |
2810 | { | |
2811 | bfd_set_error (bfd_error_bad_value); | |
2812 | goto error_ret_free_internal; | |
2813 | } | |
2814 | } | |
2815 | ||
2816 | /* Determine what (if any) linker stub is needed. */ | |
875c0872 | 2817 | stub_type = hppa_type_of_stub (section, irela, hh, |
a252afa4 | 2818 | destination, info); |
30667bf3 AM |
2819 | if (stub_type == hppa_stub_none) |
2820 | continue; | |
2821 | ||
25f72752 | 2822 | /* Support for grouping stub sections. */ |
83c81bfe | 2823 | id_sec = htab->stub_group[section->id].link_sec; |
25f72752 | 2824 | |
30667bf3 | 2825 | /* Get the name of this stub. */ |
875c0872 | 2826 | stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela); |
30667bf3 AM |
2827 | if (!stub_name) |
2828 | goto error_ret_free_internal; | |
2829 | ||
a63e02c7 | 2830 | hsh = hppa_stub_hash_lookup (&htab->bstab, |
30667bf3 | 2831 | stub_name, |
b34976b6 | 2832 | FALSE, FALSE); |
875c0872 | 2833 | if (hsh != NULL) |
30667bf3 AM |
2834 | { |
2835 | /* The proper stub has already been created. */ | |
2836 | free (stub_name); | |
2837 | continue; | |
2838 | } | |
2839 | ||
875c0872 DA |
2840 | hsh = hppa_add_stub (stub_name, section, htab); |
2841 | if (hsh == NULL) | |
30667bf3 AM |
2842 | { |
2843 | free (stub_name); | |
1e2f5b6e | 2844 | goto error_ret_free_internal; |
30667bf3 AM |
2845 | } |
2846 | ||
875c0872 DA |
2847 | hsh->target_value = sym_value; |
2848 | hsh->target_section = sym_sec; | |
2849 | hsh->stub_type = stub_type; | |
0e1862bb | 2850 | if (bfd_link_pic (info)) |
30667bf3 AM |
2851 | { |
2852 | if (stub_type == hppa_stub_import) | |
875c0872 | 2853 | hsh->stub_type = hppa_stub_import_shared; |
98ceb8ce | 2854 | else if (stub_type == hppa_stub_long_branch) |
875c0872 | 2855 | hsh->stub_type = hppa_stub_long_branch_shared; |
30667bf3 | 2856 | } |
a63e02c7 | 2857 | hsh->hh = hh; |
b34976b6 | 2858 | stub_changed = TRUE; |
30667bf3 AM |
2859 | } |
2860 | ||
2861 | /* We're done with the internal relocs, free them. */ | |
1e2f5b6e AM |
2862 | if (elf_section_data (section)->relocs == NULL) |
2863 | free (internal_relocs); | |
30667bf3 AM |
2864 | } |
2865 | } | |
2866 | ||
2867 | if (!stub_changed) | |
2868 | break; | |
2869 | ||
2870 | /* OK, we've added some stubs. Find out the new size of the | |
2871 | stub sections. */ | |
83c81bfe | 2872 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
2873 | stub_sec != NULL; |
2874 | stub_sec = stub_sec->next) | |
a464198b AM |
2875 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
2876 | stub_sec->size = 0; | |
74d1c347 | 2877 | |
a63e02c7 | 2878 | bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab); |
74d1c347 | 2879 | |
30667bf3 | 2880 | /* Ask the linker to do its stuff. */ |
83c81bfe | 2881 | (*htab->layout_sections_again) (); |
b34976b6 | 2882 | stub_changed = FALSE; |
30667bf3 AM |
2883 | } |
2884 | ||
6cdc0ccc | 2885 | free (htab->all_local_syms); |
b34976b6 | 2886 | return TRUE; |
30667bf3 AM |
2887 | |
2888 | error_ret_free_local: | |
b4655ea9 | 2889 | free (htab->all_local_syms); |
b34976b6 | 2890 | return FALSE; |
30667bf3 AM |
2891 | } |
2892 | ||
30667bf3 AM |
2893 | /* For a final link, this function is called after we have sized the |
2894 | stubs to provide a value for __gp. */ | |
2895 | ||
b34976b6 | 2896 | bfd_boolean |
c39a58e6 | 2897 | elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info) |
30667bf3 | 2898 | { |
b4655ea9 AM |
2899 | struct bfd_link_hash_entry *h; |
2900 | asection *sec = NULL; | |
2901 | bfd_vma gp_val = 0; | |
30667bf3 | 2902 | |
55ef6584 | 2903 | h = bfd_link_hash_lookup (info->hash, "$global$", FALSE, FALSE, FALSE); |
30667bf3 | 2904 | |
df8634e3 | 2905 | if (h != NULL |
b4655ea9 AM |
2906 | && (h->type == bfd_link_hash_defined |
2907 | || h->type == bfd_link_hash_defweak)) | |
30667bf3 | 2908 | { |
b4655ea9 AM |
2909 | gp_val = h->u.def.value; |
2910 | sec = h->u.def.section; | |
30667bf3 AM |
2911 | } |
2912 | else | |
2913 | { | |
0eddce27 AM |
2914 | asection *splt = bfd_get_section_by_name (abfd, ".plt"); |
2915 | asection *sgot = bfd_get_section_by_name (abfd, ".got"); | |
b4655ea9 | 2916 | |
74d1c347 AM |
2917 | /* Choose to point our LTP at, in this order, one of .plt, .got, |
2918 | or .data, if these sections exist. In the case of choosing | |
2919 | .plt try to make the LTP ideal for addressing anywhere in the | |
2920 | .plt or .got with a 14 bit signed offset. Typically, the end | |
2921 | of the .plt is the start of the .got, so choose .plt + 0x2000 | |
2922 | if either the .plt or .got is larger than 0x2000. If both | |
2923 | the .plt and .got are smaller than 0x2000, choose the end of | |
2924 | the .plt section. */ | |
225247f0 JT |
2925 | sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0 |
2926 | ? NULL : splt; | |
74d1c347 | 2927 | if (sec != NULL) |
30667bf3 | 2928 | { |
eea6121a AM |
2929 | gp_val = sec->size; |
2930 | if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000)) | |
74d1c347 AM |
2931 | { |
2932 | gp_val = 0x2000; | |
2933 | } | |
2934 | } | |
2935 | else | |
2936 | { | |
b4655ea9 | 2937 | sec = sgot; |
74d1c347 AM |
2938 | if (sec != NULL) |
2939 | { | |
225247f0 JT |
2940 | if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0) |
2941 | { | |
07d6d2b8 | 2942 | /* We know we don't have a .plt. If .got is large, |
225247f0 | 2943 | offset our LTP. */ |
07d6d2b8 | 2944 | if (sec->size > 0x2000) |
225247f0 JT |
2945 | gp_val = 0x2000; |
2946 | } | |
74d1c347 AM |
2947 | } |
2948 | else | |
2949 | { | |
2950 | /* No .plt or .got. Who cares what the LTP is? */ | |
2951 | sec = bfd_get_section_by_name (abfd, ".data"); | |
2952 | } | |
30667bf3 | 2953 | } |
df8634e3 AM |
2954 | |
2955 | if (h != NULL) | |
2956 | { | |
b4655ea9 AM |
2957 | h->type = bfd_link_hash_defined; |
2958 | h->u.def.value = gp_val; | |
df8634e3 | 2959 | if (sec != NULL) |
b4655ea9 | 2960 | h->u.def.section = sec; |
df8634e3 | 2961 | else |
b4655ea9 | 2962 | h->u.def.section = bfd_abs_section_ptr; |
df8634e3 | 2963 | } |
30667bf3 AM |
2964 | } |
2965 | ||
55ef6584 AM |
2966 | if (bfd_get_flavour (abfd) == bfd_target_elf_flavour) |
2967 | { | |
2968 | if (sec != NULL && sec->output_section != NULL) | |
2969 | gp_val += sec->output_section->vma + sec->output_offset; | |
74d1c347 | 2970 | |
55ef6584 AM |
2971 | elf_gp (abfd) = gp_val; |
2972 | } | |
b34976b6 | 2973 | return TRUE; |
30667bf3 AM |
2974 | } |
2975 | ||
30667bf3 AM |
2976 | /* Build all the stubs associated with the current output file. The |
2977 | stubs are kept in a hash table attached to the main linker hash | |
2978 | table. We also set up the .plt entries for statically linked PIC | |
2979 | functions here. This function is called via hppaelf_finish in the | |
2980 | linker. */ | |
2981 | ||
b34976b6 | 2982 | bfd_boolean |
c39a58e6 | 2983 | elf32_hppa_build_stubs (struct bfd_link_info *info) |
30667bf3 AM |
2984 | { |
2985 | asection *stub_sec; | |
2986 | struct bfd_hash_table *table; | |
83c81bfe | 2987 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 2988 | |
83c81bfe | 2989 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
2990 | if (htab == NULL) |
2991 | return FALSE; | |
30667bf3 | 2992 | |
83c81bfe | 2993 | for (stub_sec = htab->stub_bfd->sections; |
30667bf3 AM |
2994 | stub_sec != NULL; |
2995 | stub_sec = stub_sec->next) | |
a464198b AM |
2996 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 |
2997 | && stub_sec->size != 0) | |
2998 | { | |
2999 | /* Allocate memory to hold the linker stubs. */ | |
3000 | stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size); | |
3001 | if (stub_sec->contents == NULL) | |
3002 | return FALSE; | |
3003 | stub_sec->size = 0; | |
3004 | } | |
30667bf3 AM |
3005 | |
3006 | /* Build the stubs as directed by the stub hash table. */ | |
a63e02c7 | 3007 | table = &htab->bstab; |
30667bf3 AM |
3008 | bfd_hash_traverse (table, hppa_build_one_stub, info); |
3009 | ||
b34976b6 | 3010 | return TRUE; |
30667bf3 AM |
3011 | } |
3012 | ||
9b52905e | 3013 | /* Return the base vma address which should be subtracted from the real |
68ffbac6 | 3014 | address when resolving a dtpoff relocation. |
9b52905e NC |
3015 | This is PT_TLS segment p_vaddr. */ |
3016 | ||
3017 | static bfd_vma | |
3018 | dtpoff_base (struct bfd_link_info *info) | |
3019 | { | |
3020 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
3021 | if (elf_hash_table (info)->tls_sec == NULL) | |
3022 | return 0; | |
3023 | return elf_hash_table (info)->tls_sec->vma; | |
3024 | } | |
3025 | ||
3026 | /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */ | |
3027 | ||
3028 | static bfd_vma | |
3029 | tpoff (struct bfd_link_info *info, bfd_vma address) | |
3030 | { | |
3031 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
3032 | ||
3033 | /* If tls_sec is NULL, we should have signalled an error already. */ | |
3034 | if (htab->tls_sec == NULL) | |
3035 | return 0; | |
68ffbac6 | 3036 | /* hppa TLS ABI is variant I and static TLS block start just after |
9b52905e | 3037 | tcbhead structure which has 2 pointer fields. */ |
68ffbac6 | 3038 | return (address - htab->tls_sec->vma |
9b52905e NC |
3039 | + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power)); |
3040 | } | |
3041 | ||
c46b7515 AM |
3042 | /* Perform a final link. */ |
3043 | ||
b34976b6 | 3044 | static bfd_boolean |
c39a58e6 | 3045 | elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info) |
c46b7515 | 3046 | { |
6d4b2867 JDA |
3047 | struct stat buf; |
3048 | ||
4dc86686 | 3049 | /* Invoke the regular ELF linker to do all the work. */ |
c152c796 | 3050 | if (!bfd_elf_final_link (abfd, info)) |
b34976b6 | 3051 | return FALSE; |
c46b7515 AM |
3052 | |
3053 | /* If we're producing a final executable, sort the contents of the | |
985142a4 | 3054 | unwind section. */ |
0e1862bb | 3055 | if (bfd_link_relocatable (info)) |
d9f40817 DA |
3056 | return TRUE; |
3057 | ||
6d4b2867 JDA |
3058 | /* Do not attempt to sort non-regular files. This is here |
3059 | especially for configure scripts and kernel builds which run | |
3060 | tests with "ld [...] -o /dev/null". */ | |
765cf5f6 | 3061 | if (stat (bfd_get_filename (abfd), &buf) != 0 |
6d4b2867 JDA |
3062 | || !S_ISREG(buf.st_mode)) |
3063 | return TRUE; | |
3064 | ||
46fe4e66 | 3065 | return elf_hppa_sort_unwind (abfd); |
c46b7515 AM |
3066 | } |
3067 | ||
3068 | /* Record the lowest address for the data and text segments. */ | |
3069 | ||
3070 | static void | |
2ea37f1c | 3071 | hppa_record_segment_addr (bfd *abfd, asection *section, void *data) |
c46b7515 | 3072 | { |
83c81bfe | 3073 | struct elf32_hppa_link_hash_table *htab; |
c46b7515 | 3074 | |
875c0872 | 3075 | htab = (struct elf32_hppa_link_hash_table*) data; |
4dfe6ac6 NC |
3076 | if (htab == NULL) |
3077 | return; | |
c46b7515 AM |
3078 | |
3079 | if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD)) | |
3080 | { | |
2ea37f1c NC |
3081 | bfd_vma value; |
3082 | Elf_Internal_Phdr *p; | |
3083 | ||
3084 | p = _bfd_elf_find_segment_containing_section (abfd, section->output_section); | |
3085 | BFD_ASSERT (p != NULL); | |
3086 | value = p->p_vaddr; | |
c46b7515 AM |
3087 | |
3088 | if ((section->flags & SEC_READONLY) != 0) | |
3089 | { | |
83c81bfe AM |
3090 | if (value < htab->text_segment_base) |
3091 | htab->text_segment_base = value; | |
c46b7515 AM |
3092 | } |
3093 | else | |
3094 | { | |
83c81bfe AM |
3095 | if (value < htab->data_segment_base) |
3096 | htab->data_segment_base = value; | |
c46b7515 AM |
3097 | } |
3098 | } | |
3099 | } | |
3100 | ||
30667bf3 AM |
3101 | /* Perform a relocation as part of a final link. */ |
3102 | ||
3103 | static bfd_reloc_status_type | |
c39a58e6 AM |
3104 | final_link_relocate (asection *input_section, |
3105 | bfd_byte *contents, | |
875c0872 | 3106 | const Elf_Internal_Rela *rela, |
c39a58e6 AM |
3107 | bfd_vma value, |
3108 | struct elf32_hppa_link_hash_table *htab, | |
3109 | asection *sym_sec, | |
875c0872 | 3110 | struct elf32_hppa_link_hash_entry *hh, |
a252afa4 | 3111 | struct bfd_link_info *info) |
30667bf3 | 3112 | { |
2365f8d7 | 3113 | unsigned int insn; |
875c0872 | 3114 | unsigned int r_type = ELF32_R_TYPE (rela->r_info); |
a252afa4 | 3115 | unsigned int orig_r_type = r_type; |
30667bf3 AM |
3116 | reloc_howto_type *howto = elf_hppa_howto_table + r_type; |
3117 | int r_format = howto->bitsize; | |
3118 | enum hppa_reloc_field_selector_type_alt r_field; | |
3119 | bfd *input_bfd = input_section->owner; | |
875c0872 | 3120 | bfd_vma offset = rela->r_offset; |
30667bf3 AM |
3121 | bfd_vma max_branch_offset = 0; |
3122 | bfd_byte *hit_data = contents + offset; | |
875c0872 | 3123 | bfd_signed_vma addend = rela->r_addend; |
30667bf3 | 3124 | bfd_vma location; |
875c0872 | 3125 | struct elf32_hppa_stub_hash_entry *hsh = NULL; |
68ffbac6 | 3126 | int val; |
30667bf3 AM |
3127 | |
3128 | if (r_type == R_PARISC_NONE) | |
3129 | return bfd_reloc_ok; | |
3130 | ||
3131 | insn = bfd_get_32 (input_bfd, hit_data); | |
3132 | ||
3133 | /* Find out where we are and where we're going. */ | |
3134 | location = (offset + | |
3135 | input_section->output_offset + | |
3136 | input_section->output_section->vma); | |
3137 | ||
a252afa4 DA |
3138 | /* If we are not building a shared library, convert DLTIND relocs to |
3139 | DPREL relocs. */ | |
0e1862bb | 3140 | if (!bfd_link_pic (info)) |
a252afa4 DA |
3141 | { |
3142 | switch (r_type) | |
4fc8051d AM |
3143 | { |
3144 | case R_PARISC_DLTIND21L: | |
143bb599 DA |
3145 | case R_PARISC_TLS_GD21L: |
3146 | case R_PARISC_TLS_LDM21L: | |
3147 | case R_PARISC_TLS_IE21L: | |
4fc8051d | 3148 | r_type = R_PARISC_DPREL21L; |
a252afa4 DA |
3149 | break; |
3150 | ||
4fc8051d | 3151 | case R_PARISC_DLTIND14R: |
143bb599 DA |
3152 | case R_PARISC_TLS_GD14R: |
3153 | case R_PARISC_TLS_LDM14R: | |
3154 | case R_PARISC_TLS_IE14R: | |
4fc8051d | 3155 | r_type = R_PARISC_DPREL14R; |
a252afa4 DA |
3156 | break; |
3157 | ||
4fc8051d AM |
3158 | case R_PARISC_DLTIND14F: |
3159 | r_type = R_PARISC_DPREL14F; | |
a252afa4 DA |
3160 | break; |
3161 | } | |
3162 | } | |
3163 | ||
30667bf3 AM |
3164 | switch (r_type) |
3165 | { | |
3166 | case R_PARISC_PCREL12F: | |
3167 | case R_PARISC_PCREL17F: | |
3168 | case R_PARISC_PCREL22F: | |
067fa4a6 AM |
3169 | /* If this call should go via the plt, find the import stub in |
3170 | the stub hash. */ | |
215f5271 AM |
3171 | if (sym_sec == NULL |
3172 | || sym_sec->output_section == NULL | |
3173 | || (hh != NULL | |
3174 | && hh->eh.plt.offset != (bfd_vma) -1 | |
3175 | && hh->eh.dynindx != -1 | |
3176 | && !hh->plabel | |
3177 | && (bfd_link_pic (info) | |
3178 | || !hh->eh.def_regular | |
3179 | || hh->eh.root.type == bfd_link_hash_defweak))) | |
30667bf3 | 3180 | { |
875c0872 | 3181 | hsh = hppa_get_stub_entry (input_section, sym_sec, |
7455c018 | 3182 | hh, rela, htab); |
875c0872 | 3183 | if (hsh != NULL) |
30667bf3 | 3184 | { |
875c0872 DA |
3185 | value = (hsh->stub_offset |
3186 | + hsh->stub_sec->output_offset | |
3187 | + hsh->stub_sec->output_section->vma); | |
30667bf3 AM |
3188 | addend = 0; |
3189 | } | |
875c0872 | 3190 | else if (sym_sec == NULL && hh != NULL |
a63e02c7 | 3191 | && hh->eh.root.type == bfd_link_hash_undefweak) |
30667bf3 | 3192 | { |
db20fd76 AM |
3193 | /* It's OK if undefined weak. Calls to undefined weak |
3194 | symbols behave as if the "called" function | |
3195 | immediately returns. We can thus call to a weak | |
3196 | function without first checking whether the function | |
3197 | is defined. */ | |
30667bf3 | 3198 | value = location; |
db20fd76 | 3199 | addend = 8; |
30667bf3 AM |
3200 | } |
3201 | else | |
f09ebc7d | 3202 | return bfd_reloc_undefined; |
30667bf3 AM |
3203 | } |
3204 | /* Fall thru. */ | |
3205 | ||
3206 | case R_PARISC_PCREL21L: | |
3207 | case R_PARISC_PCREL17C: | |
3208 | case R_PARISC_PCREL17R: | |
3209 | case R_PARISC_PCREL14R: | |
3210 | case R_PARISC_PCREL14F: | |
36751eee | 3211 | case R_PARISC_PCREL32: |
30667bf3 AM |
3212 | /* Make it a pc relative offset. */ |
3213 | value -= location; | |
3214 | addend -= 8; | |
3215 | break; | |
3216 | ||
3217 | case R_PARISC_DPREL21L: | |
3218 | case R_PARISC_DPREL14R: | |
3219 | case R_PARISC_DPREL14F: | |
a252afa4 DA |
3220 | /* Convert instructions that use the linkage table pointer (r19) to |
3221 | instructions that use the global data pointer (dp). This is the | |
3222 | most efficient way of using PIC code in an incomplete executable, | |
3223 | but the user must follow the standard runtime conventions for | |
3224 | accessing data for this to work. */ | |
143bb599 | 3225 | if (orig_r_type != r_type) |
a252afa4 | 3226 | { |
143bb599 DA |
3227 | if (r_type == R_PARISC_DPREL21L) |
3228 | { | |
3229 | /* GCC sometimes uses a register other than r19 for the | |
3230 | operation, so we must convert any addil instruction | |
3231 | that uses this relocation. */ | |
2365f8d7 | 3232 | if ((insn & 0xfc000000) == OP_ADDIL << 26) |
143bb599 DA |
3233 | insn = ADDIL_DP; |
3234 | else | |
3235 | /* We must have a ldil instruction. It's too hard to find | |
3236 | and convert the associated add instruction, so issue an | |
3237 | error. */ | |
4eca0228 | 3238 | _bfd_error_handler |
695344c0 | 3239 | /* xgettext:c-format */ |
2dcf00ce AM |
3240 | (_("%pB(%pA+%#" PRIx64 "): %s fixup for insn %#x " |
3241 | "is not supported in a non-shared link"), | |
143bb599 DA |
3242 | input_bfd, |
3243 | input_section, | |
2dcf00ce | 3244 | (uint64_t) offset, |
143bb599 DA |
3245 | howto->name, |
3246 | insn); | |
3247 | } | |
3248 | else if (r_type == R_PARISC_DPREL14F) | |
3249 | { | |
3250 | /* This must be a format 1 load/store. Change the base | |
3251 | register to dp. */ | |
3252 | insn = (insn & 0xfc1ffff) | (27 << 21); | |
3253 | } | |
a252afa4 DA |
3254 | } |
3255 | ||
143bb599 DA |
3256 | /* For all the DP relative relocations, we need to examine the symbol's |
3257 | section. If it has no section or if it's a code section, then | |
3258 | "data pointer relative" makes no sense. In that case we don't | |
3259 | adjust the "value", and for 21 bit addil instructions, we change the | |
3260 | source addend register from %dp to %r0. This situation commonly | |
3261 | arises for undefined weak symbols and when a variable's "constness" | |
3262 | is declared differently from the way the variable is defined. For | |
3263 | instance: "extern int foo" with foo defined as "const int foo". */ | |
95d0f04a | 3264 | if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0) |
30667bf3 | 3265 | { |
2365f8d7 AM |
3266 | if ((insn & ((0x3fu << 26) | (0x1f << 21))) |
3267 | == ((OP_ADDIL << 26) | (27 << 21))) | |
30667bf3 AM |
3268 | { |
3269 | insn &= ~ (0x1f << 21); | |
30667bf3 AM |
3270 | } |
3271 | /* Now try to make things easy for the dynamic linker. */ | |
3272 | ||
3273 | break; | |
3274 | } | |
74d1c347 | 3275 | /* Fall thru. */ |
30667bf3 AM |
3276 | |
3277 | case R_PARISC_DLTIND21L: | |
3278 | case R_PARISC_DLTIND14R: | |
3279 | case R_PARISC_DLTIND14F: | |
143bb599 DA |
3280 | case R_PARISC_TLS_GD21L: |
3281 | case R_PARISC_TLS_LDM21L: | |
3282 | case R_PARISC_TLS_IE21L: | |
9b52905e | 3283 | case R_PARISC_TLS_GD14R: |
9b52905e | 3284 | case R_PARISC_TLS_LDM14R: |
9b52905e | 3285 | case R_PARISC_TLS_IE14R: |
30667bf3 AM |
3286 | value -= elf_gp (input_section->output_section->owner); |
3287 | break; | |
3288 | ||
c46b7515 AM |
3289 | case R_PARISC_SEGREL32: |
3290 | if ((sym_sec->flags & SEC_CODE) != 0) | |
83c81bfe | 3291 | value -= htab->text_segment_base; |
c46b7515 | 3292 | else |
83c81bfe | 3293 | value -= htab->data_segment_base; |
c46b7515 AM |
3294 | break; |
3295 | ||
30667bf3 AM |
3296 | default: |
3297 | break; | |
3298 | } | |
3299 | ||
3300 | switch (r_type) | |
3301 | { | |
3302 | case R_PARISC_DIR32: | |
47d89dba | 3303 | case R_PARISC_DIR14F: |
30667bf3 AM |
3304 | case R_PARISC_DIR17F: |
3305 | case R_PARISC_PCREL17C: | |
3306 | case R_PARISC_PCREL14F: | |
36751eee | 3307 | case R_PARISC_PCREL32: |
30667bf3 AM |
3308 | case R_PARISC_DPREL14F: |
3309 | case R_PARISC_PLABEL32: | |
3310 | case R_PARISC_DLTIND14F: | |
3311 | case R_PARISC_SEGBASE: | |
3312 | case R_PARISC_SEGREL32: | |
9b52905e NC |
3313 | case R_PARISC_TLS_DTPMOD32: |
3314 | case R_PARISC_TLS_DTPOFF32: | |
3315 | case R_PARISC_TLS_TPREL32: | |
30667bf3 AM |
3316 | r_field = e_fsel; |
3317 | break; | |
3318 | ||
1bf42538 | 3319 | case R_PARISC_DLTIND21L: |
30667bf3 | 3320 | case R_PARISC_PCREL21L: |
30667bf3 | 3321 | case R_PARISC_PLABEL21L: |
1bf42538 JL |
3322 | r_field = e_lsel; |
3323 | break; | |
3324 | ||
3325 | case R_PARISC_DIR21L: | |
3326 | case R_PARISC_DPREL21L: | |
9b52905e NC |
3327 | case R_PARISC_TLS_GD21L: |
3328 | case R_PARISC_TLS_LDM21L: | |
3329 | case R_PARISC_TLS_LDO21L: | |
3330 | case R_PARISC_TLS_IE21L: | |
3331 | case R_PARISC_TLS_LE21L: | |
30667bf3 AM |
3332 | r_field = e_lrsel; |
3333 | break; | |
3334 | ||
30667bf3 | 3335 | case R_PARISC_PCREL17R: |
30667bf3 | 3336 | case R_PARISC_PCREL14R: |
30667bf3 AM |
3337 | case R_PARISC_PLABEL14R: |
3338 | case R_PARISC_DLTIND14R: | |
1bf42538 JL |
3339 | r_field = e_rsel; |
3340 | break; | |
3341 | ||
3342 | case R_PARISC_DIR17R: | |
3343 | case R_PARISC_DIR14R: | |
3344 | case R_PARISC_DPREL14R: | |
9b52905e NC |
3345 | case R_PARISC_TLS_GD14R: |
3346 | case R_PARISC_TLS_LDM14R: | |
3347 | case R_PARISC_TLS_LDO14R: | |
3348 | case R_PARISC_TLS_IE14R: | |
3349 | case R_PARISC_TLS_LE14R: | |
30667bf3 AM |
3350 | r_field = e_rrsel; |
3351 | break; | |
3352 | ||
3353 | case R_PARISC_PCREL12F: | |
3354 | case R_PARISC_PCREL17F: | |
3355 | case R_PARISC_PCREL22F: | |
3356 | r_field = e_fsel; | |
3357 | ||
3358 | if (r_type == (unsigned int) R_PARISC_PCREL17F) | |
3359 | { | |
3360 | max_branch_offset = (1 << (17-1)) << 2; | |
3361 | } | |
3362 | else if (r_type == (unsigned int) R_PARISC_PCREL12F) | |
3363 | { | |
3364 | max_branch_offset = (1 << (12-1)) << 2; | |
3365 | } | |
3366 | else | |
3367 | { | |
3368 | max_branch_offset = (1 << (22-1)) << 2; | |
3369 | } | |
3370 | ||
3371 | /* sym_sec is NULL on undefined weak syms or when shared on | |
3372 | undefined syms. We've already checked for a stub for the | |
3373 | shared undefined case. */ | |
3374 | if (sym_sec == NULL) | |
3375 | break; | |
3376 | ||
3377 | /* If the branch is out of reach, then redirect the | |
3378 | call to the local stub for this function. */ | |
3379 | if (value + addend + max_branch_offset >= 2*max_branch_offset) | |
3380 | { | |
875c0872 | 3381 | hsh = hppa_get_stub_entry (input_section, sym_sec, |
7455c018 | 3382 | hh, rela, htab); |
875c0872 | 3383 | if (hsh == NULL) |
f09ebc7d | 3384 | return bfd_reloc_undefined; |
30667bf3 AM |
3385 | |
3386 | /* Munge up the value and addend so that we call the stub | |
3387 | rather than the procedure directly. */ | |
875c0872 DA |
3388 | value = (hsh->stub_offset |
3389 | + hsh->stub_sec->output_offset | |
3390 | + hsh->stub_sec->output_section->vma | |
30667bf3 AM |
3391 | - location); |
3392 | addend = -8; | |
3393 | } | |
3394 | break; | |
3395 | ||
3396 | /* Something we don't know how to handle. */ | |
3397 | default: | |
3398 | return bfd_reloc_notsupported; | |
3399 | } | |
3400 | ||
3401 | /* Make sure we can reach the stub. */ | |
3402 | if (max_branch_offset != 0 | |
3403 | && value + addend + max_branch_offset >= 2*max_branch_offset) | |
3404 | { | |
4eca0228 | 3405 | _bfd_error_handler |
695344c0 | 3406 | /* xgettext:c-format */ |
2dcf00ce AM |
3407 | (_("%pB(%pA+%#" PRIx64 "): cannot reach %s, " |
3408 | "recompile with -ffunction-sections"), | |
d003868e AM |
3409 | input_bfd, |
3410 | input_section, | |
2dcf00ce | 3411 | (uint64_t) offset, |
a63e02c7 | 3412 | hsh->bh_root.string); |
ce757d15 | 3413 | bfd_set_error (bfd_error_bad_value); |
30667bf3 AM |
3414 | return bfd_reloc_notsupported; |
3415 | } | |
3416 | ||
3417 | val = hppa_field_adjust (value, addend, r_field); | |
3418 | ||
3419 | switch (r_type) | |
3420 | { | |
3421 | case R_PARISC_PCREL12F: | |
3422 | case R_PARISC_PCREL17C: | |
3423 | case R_PARISC_PCREL17F: | |
3424 | case R_PARISC_PCREL17R: | |
3425 | case R_PARISC_PCREL22F: | |
3426 | case R_PARISC_DIR17F: | |
3427 | case R_PARISC_DIR17R: | |
3428 | /* This is a branch. Divide the offset by four. | |
3429 | Note that we need to decide whether it's a branch or | |
3430 | otherwise by inspecting the reloc. Inspecting insn won't | |
3431 | work as insn might be from a .word directive. */ | |
3432 | val >>= 2; | |
3433 | break; | |
3434 | ||
3435 | default: | |
3436 | break; | |
3437 | } | |
3438 | ||
3439 | insn = hppa_rebuild_insn (insn, val, r_format); | |
3440 | ||
3441 | /* Update the instruction word. */ | |
74d1c347 | 3442 | bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data); |
30667bf3 AM |
3443 | return bfd_reloc_ok; |
3444 | } | |
3445 | ||
30667bf3 AM |
3446 | /* Relocate an HPPA ELF section. */ |
3447 | ||
b34976b6 | 3448 | static bfd_boolean |
c39a58e6 AM |
3449 | elf32_hppa_relocate_section (bfd *output_bfd, |
3450 | struct bfd_link_info *info, | |
3451 | bfd *input_bfd, | |
3452 | asection *input_section, | |
3453 | bfd_byte *contents, | |
3454 | Elf_Internal_Rela *relocs, | |
3455 | Elf_Internal_Sym *local_syms, | |
3456 | asection **local_sections) | |
30667bf3 | 3457 | { |
30667bf3 | 3458 | bfd_vma *local_got_offsets; |
83c81bfe | 3459 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 3460 | Elf_Internal_Shdr *symtab_hdr; |
875c0872 | 3461 | Elf_Internal_Rela *rela; |
30667bf3 | 3462 | Elf_Internal_Rela *relend; |
30667bf3 AM |
3463 | |
3464 | symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr; | |
3465 | ||
83c81bfe | 3466 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
3467 | if (htab == NULL) |
3468 | return FALSE; | |
3469 | ||
74d1c347 | 3470 | local_got_offsets = elf_local_got_offsets (input_bfd); |
30667bf3 | 3471 | |
875c0872 | 3472 | rela = relocs; |
30667bf3 | 3473 | relend = relocs + input_section->reloc_count; |
875c0872 | 3474 | for (; rela < relend; rela++) |
30667bf3 AM |
3475 | { |
3476 | unsigned int r_type; | |
3477 | reloc_howto_type *howto; | |
3478 | unsigned int r_symndx; | |
875c0872 | 3479 | struct elf32_hppa_link_hash_entry *hh; |
30667bf3 AM |
3480 | Elf_Internal_Sym *sym; |
3481 | asection *sym_sec; | |
3482 | bfd_vma relocation; | |
875c0872 | 3483 | bfd_reloc_status_type rstatus; |
30667bf3 | 3484 | const char *sym_name; |
b34976b6 AM |
3485 | bfd_boolean plabel; |
3486 | bfd_boolean warned_undef; | |
30667bf3 | 3487 | |
875c0872 | 3488 | r_type = ELF32_R_TYPE (rela->r_info); |
30667bf3 AM |
3489 | if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED) |
3490 | { | |
3491 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 3492 | return FALSE; |
30667bf3 AM |
3493 | } |
3494 | if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY | |
3495 | || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT) | |
3496 | continue; | |
3497 | ||
875c0872 DA |
3498 | r_symndx = ELF32_R_SYM (rela->r_info); |
3499 | hh = NULL; | |
30667bf3 AM |
3500 | sym = NULL; |
3501 | sym_sec = NULL; | |
b34976b6 | 3502 | warned_undef = FALSE; |
30667bf3 AM |
3503 | if (r_symndx < symtab_hdr->sh_info) |
3504 | { | |
3505 | /* This is a local symbol, h defaults to NULL. */ | |
3506 | sym = local_syms + r_symndx; | |
3507 | sym_sec = local_sections[r_symndx]; | |
875c0872 | 3508 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela); |
30667bf3 AM |
3509 | } |
3510 | else | |
3511 | { | |
875c0872 | 3512 | struct elf_link_hash_entry *eh; |
62d887d4 | 3513 | bfd_boolean unresolved_reloc, ignored; |
b2a8e766 | 3514 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd); |
560e09e9 | 3515 | |
875c0872 | 3516 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela, |
b2a8e766 | 3517 | r_symndx, symtab_hdr, sym_hashes, |
875c0872 | 3518 | eh, sym_sec, relocation, |
62d887d4 L |
3519 | unresolved_reloc, warned_undef, |
3520 | ignored); | |
560e09e9 | 3521 | |
0e1862bb | 3522 | if (!bfd_link_relocatable (info) |
ab96bf03 | 3523 | && relocation == 0 |
875c0872 DA |
3524 | && eh->root.type != bfd_link_hash_defined |
3525 | && eh->root.type != bfd_link_hash_defweak | |
3526 | && eh->root.type != bfd_link_hash_undefweak) | |
4fc8051d | 3527 | { |
59c2e50f | 3528 | if (info->unresolved_syms_in_objects == RM_IGNORE |
875c0872 DA |
3529 | && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT |
3530 | && eh->type == STT_PARISC_MILLI) | |
560e09e9 | 3531 | { |
1a72702b AM |
3532 | (*info->callbacks->undefined_symbol) |
3533 | (info, eh_name (eh), input_bfd, | |
3534 | input_section, rela->r_offset, FALSE); | |
560e09e9 NC |
3535 | warned_undef = TRUE; |
3536 | } | |
30667bf3 | 3537 | } |
875c0872 | 3538 | hh = hppa_elf_hash_entry (eh); |
30667bf3 AM |
3539 | } |
3540 | ||
dbaa2011 | 3541 | if (sym_sec != NULL && discarded_section (sym_sec)) |
e4067dbb | 3542 | RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, |
545fd46b MR |
3543 | rela, 1, relend, |
3544 | elf_hppa_howto_table + r_type, 0, | |
e4067dbb | 3545 | contents); |
ab96bf03 | 3546 | |
0e1862bb | 3547 | if (bfd_link_relocatable (info)) |
ab96bf03 AM |
3548 | continue; |
3549 | ||
30667bf3 | 3550 | /* Do any required modifications to the relocation value, and |
25f72752 AM |
3551 | determine what types of dynamic info we need to output, if |
3552 | any. */ | |
74d1c347 | 3553 | plabel = 0; |
30667bf3 AM |
3554 | switch (r_type) |
3555 | { | |
3556 | case R_PARISC_DLTIND14F: | |
3557 | case R_PARISC_DLTIND14R: | |
3558 | case R_PARISC_DLTIND21L: | |
ce757d15 AM |
3559 | { |
3560 | bfd_vma off; | |
d336fa6d AM |
3561 | bfd_boolean do_got = FALSE; |
3562 | bfd_boolean reloc = bfd_link_pic (info); | |
ce757d15 AM |
3563 | |
3564 | /* Relocation is to the entry for this symbol in the | |
3565 | global offset table. */ | |
875c0872 | 3566 | if (hh != NULL) |
ce757d15 | 3567 | { |
b34976b6 | 3568 | bfd_boolean dyn; |
ce757d15 | 3569 | |
a63e02c7 DA |
3570 | off = hh->eh.got.offset; |
3571 | dyn = htab->etab.dynamic_sections_created; | |
d336fa6d AM |
3572 | reloc = (!UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh) |
3573 | && (reloc | |
3574 | || (hh->eh.dynindx != -1 | |
3575 | && !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))); | |
3576 | if (!reloc | |
3577 | || !WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, | |
3578 | bfd_link_pic (info), | |
3579 | &hh->eh)) | |
ce757d15 AM |
3580 | { |
3581 | /* If we aren't going to call finish_dynamic_symbol, | |
3582 | then we need to handle initialisation of the .got | |
3583 | entry and create needed relocs here. Since the | |
3584 | offset must always be a multiple of 4, we use the | |
3585 | least significant bit to record whether we have | |
3586 | initialised it already. */ | |
3587 | if ((off & 1) != 0) | |
3588 | off &= ~1; | |
3589 | else | |
3590 | { | |
a63e02c7 | 3591 | hh->eh.got.offset |= 1; |
d336fa6d | 3592 | do_got = TRUE; |
ce757d15 AM |
3593 | } |
3594 | } | |
3595 | } | |
3596 | else | |
3597 | { | |
3598 | /* Local symbol case. */ | |
3599 | if (local_got_offsets == NULL) | |
3600 | abort (); | |
3601 | ||
3602 | off = local_got_offsets[r_symndx]; | |
3603 | ||
3604 | /* The offset must always be a multiple of 4. We use | |
3605 | the least significant bit to record whether we have | |
3606 | already generated the necessary reloc. */ | |
3607 | if ((off & 1) != 0) | |
3608 | off &= ~1; | |
3609 | else | |
3610 | { | |
3611 | local_got_offsets[r_symndx] |= 1; | |
d336fa6d | 3612 | do_got = TRUE; |
ce757d15 AM |
3613 | } |
3614 | } | |
68fb2e56 | 3615 | |
ce757d15 AM |
3616 | if (do_got) |
3617 | { | |
d336fa6d | 3618 | if (reloc) |
ce757d15 AM |
3619 | { |
3620 | /* Output a dynamic relocation for this GOT entry. | |
3621 | In this case it is relative to the base of the | |
3622 | object because the symbol index is zero. */ | |
3623 | Elf_Internal_Rela outrel; | |
947216bf | 3624 | bfd_byte *loc; |
ce558b89 | 3625 | asection *sec = htab->etab.srelgot; |
ce757d15 AM |
3626 | |
3627 | outrel.r_offset = (off | |
ce558b89 AM |
3628 | + htab->etab.sgot->output_offset |
3629 | + htab->etab.sgot->output_section->vma); | |
ce757d15 AM |
3630 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); |
3631 | outrel.r_addend = relocation; | |
875c0872 DA |
3632 | loc = sec->contents; |
3633 | loc += sec->reloc_count++ * sizeof (Elf32_External_Rela); | |
ce757d15 AM |
3634 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
3635 | } | |
3636 | else | |
30667bf3 | 3637 | bfd_put_32 (output_bfd, relocation, |
ce558b89 | 3638 | htab->etab.sgot->contents + off); |
ce757d15 | 3639 | } |
30667bf3 | 3640 | |
ce757d15 AM |
3641 | if (off >= (bfd_vma) -2) |
3642 | abort (); | |
30667bf3 | 3643 | |
ce757d15 AM |
3644 | /* Add the base of the GOT to the relocation value. */ |
3645 | relocation = (off | |
ce558b89 AM |
3646 | + htab->etab.sgot->output_offset |
3647 | + htab->etab.sgot->output_section->vma); | |
ce757d15 | 3648 | } |
30667bf3 | 3649 | break; |
252b5132 | 3650 | |
c46b7515 AM |
3651 | case R_PARISC_SEGREL32: |
3652 | /* If this is the first SEGREL relocation, then initialize | |
3653 | the segment base values. */ | |
83c81bfe AM |
3654 | if (htab->text_segment_base == (bfd_vma) -1) |
3655 | bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab); | |
c46b7515 AM |
3656 | break; |
3657 | ||
30667bf3 AM |
3658 | case R_PARISC_PLABEL14R: |
3659 | case R_PARISC_PLABEL21L: | |
3660 | case R_PARISC_PLABEL32: | |
a63e02c7 | 3661 | if (htab->etab.dynamic_sections_created) |
252b5132 | 3662 | { |
ce757d15 | 3663 | bfd_vma off; |
b34976b6 | 3664 | bfd_boolean do_plt = 0; |
74d1c347 AM |
3665 | /* If we have a global symbol with a PLT slot, then |
3666 | redirect this relocation to it. */ | |
875c0872 | 3667 | if (hh != NULL) |
74d1c347 | 3668 | { |
a63e02c7 | 3669 | off = hh->eh.plt.offset; |
0e1862bb L |
3670 | if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, |
3671 | bfd_link_pic (info), | |
a63e02c7 | 3672 | &hh->eh)) |
8dea1268 | 3673 | { |
4a7e5234 | 3674 | /* In a non-shared link, adjust_dynamic_symbol |
8dea1268 | 3675 | isn't called for symbols forced local. We |
dc810e39 | 3676 | need to write out the plt entry here. */ |
8dea1268 AM |
3677 | if ((off & 1) != 0) |
3678 | off &= ~1; | |
3679 | else | |
3680 | { | |
a63e02c7 | 3681 | hh->eh.plt.offset |= 1; |
ce757d15 | 3682 | do_plt = 1; |
8dea1268 AM |
3683 | } |
3684 | } | |
74d1c347 AM |
3685 | } |
3686 | else | |
3687 | { | |
68fb2e56 AM |
3688 | bfd_vma *local_plt_offsets; |
3689 | ||
3690 | if (local_got_offsets == NULL) | |
3691 | abort (); | |
74d1c347 | 3692 | |
68fb2e56 AM |
3693 | local_plt_offsets = local_got_offsets + symtab_hdr->sh_info; |
3694 | off = local_plt_offsets[r_symndx]; | |
74d1c347 AM |
3695 | |
3696 | /* As for the local .got entry case, we use the last | |
3697 | bit to record whether we've already initialised | |
3698 | this local .plt entry. */ | |
3699 | if ((off & 1) != 0) | |
3700 | off &= ~1; | |
ce757d15 AM |
3701 | else |
3702 | { | |
3703 | local_plt_offsets[r_symndx] |= 1; | |
3704 | do_plt = 1; | |
3705 | } | |
3706 | } | |
3707 | ||
3708 | if (do_plt) | |
3709 | { | |
0e1862bb | 3710 | if (bfd_link_pic (info)) |
ce757d15 AM |
3711 | { |
3712 | /* Output a dynamic IPLT relocation for this | |
3713 | PLT entry. */ | |
3714 | Elf_Internal_Rela outrel; | |
947216bf | 3715 | bfd_byte *loc; |
ce558b89 | 3716 | asection *s = htab->etab.srelplt; |
ce757d15 AM |
3717 | |
3718 | outrel.r_offset = (off | |
ce558b89 AM |
3719 | + htab->etab.splt->output_offset |
3720 | + htab->etab.splt->output_section->vma); | |
ce757d15 AM |
3721 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); |
3722 | outrel.r_addend = relocation; | |
947216bf AM |
3723 | loc = s->contents; |
3724 | loc += s->reloc_count++ * sizeof (Elf32_External_Rela); | |
ce757d15 AM |
3725 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
3726 | } | |
74d1c347 AM |
3727 | else |
3728 | { | |
3729 | bfd_put_32 (output_bfd, | |
3730 | relocation, | |
ce558b89 | 3731 | htab->etab.splt->contents + off); |
74d1c347 | 3732 | bfd_put_32 (output_bfd, |
ce558b89 AM |
3733 | elf_gp (htab->etab.splt->output_section->owner), |
3734 | htab->etab.splt->contents + off + 4); | |
74d1c347 AM |
3735 | } |
3736 | } | |
3737 | ||
68fb2e56 | 3738 | if (off >= (bfd_vma) -2) |
49e9d0d3 | 3739 | abort (); |
74d1c347 AM |
3740 | |
3741 | /* PLABELs contain function pointers. Relocation is to | |
3742 | the entry for the function in the .plt. The magic +2 | |
3743 | offset signals to $$dyncall that the function pointer | |
3744 | is in the .plt and thus has a gp pointer too. | |
3745 | Exception: Undefined PLABELs should have a value of | |
3746 | zero. */ | |
875c0872 | 3747 | if (hh == NULL |
a63e02c7 DA |
3748 | || (hh->eh.root.type != bfd_link_hash_undefweak |
3749 | && hh->eh.root.type != bfd_link_hash_undefined)) | |
74d1c347 AM |
3750 | { |
3751 | relocation = (off | |
ce558b89 AM |
3752 | + htab->etab.splt->output_offset |
3753 | + htab->etab.splt->output_section->vma | |
74d1c347 AM |
3754 | + 2); |
3755 | } | |
3756 | plabel = 1; | |
30667bf3 | 3757 | } |
1a0670f3 | 3758 | /* Fall through. */ |
30667bf3 AM |
3759 | |
3760 | case R_PARISC_DIR17F: | |
3761 | case R_PARISC_DIR17R: | |
47d89dba | 3762 | case R_PARISC_DIR14F: |
30667bf3 AM |
3763 | case R_PARISC_DIR14R: |
3764 | case R_PARISC_DIR21L: | |
3765 | case R_PARISC_DPREL14F: | |
3766 | case R_PARISC_DPREL14R: | |
3767 | case R_PARISC_DPREL21L: | |
3768 | case R_PARISC_DIR32: | |
b1e24c02 | 3769 | if ((input_section->flags & SEC_ALLOC) == 0) |
ec338859 AM |
3770 | break; |
3771 | ||
287c7eaf AM |
3772 | if (bfd_link_pic (info) |
3773 | ? ((hh == NULL | |
190eb1dd | 3774 | || hh->eh.dyn_relocs != NULL) |
287c7eaf AM |
3775 | && ((hh != NULL && pc_dynrelocs (hh)) |
3776 | || IS_ABSOLUTE_RELOC (r_type))) | |
3777 | : (hh != NULL | |
190eb1dd | 3778 | && hh->eh.dyn_relocs != NULL)) |
30667bf3 AM |
3779 | { |
3780 | Elf_Internal_Rela outrel; | |
b34976b6 | 3781 | bfd_boolean skip; |
98ceb8ce | 3782 | asection *sreloc; |
947216bf | 3783 | bfd_byte *loc; |
252b5132 | 3784 | |
30667bf3 AM |
3785 | /* When generating a shared object, these relocations |
3786 | are copied into the output file to be resolved at run | |
3787 | time. */ | |
252b5132 | 3788 | |
875c0872 | 3789 | outrel.r_addend = rela->r_addend; |
c629eae0 JJ |
3790 | outrel.r_offset = |
3791 | _bfd_elf_section_offset (output_bfd, info, input_section, | |
875c0872 | 3792 | rela->r_offset); |
0bb2d96a JJ |
3793 | skip = (outrel.r_offset == (bfd_vma) -1 |
3794 | || outrel.r_offset == (bfd_vma) -2); | |
30667bf3 AM |
3795 | outrel.r_offset += (input_section->output_offset |
3796 | + input_section->output_section->vma); | |
68ffbac6 | 3797 | |
30667bf3 | 3798 | if (skip) |
252b5132 | 3799 | { |
30667bf3 | 3800 | memset (&outrel, 0, sizeof (outrel)); |
252b5132 | 3801 | } |
875c0872 | 3802 | else if (hh != NULL |
a63e02c7 | 3803 | && hh->eh.dynindx != -1 |
74d1c347 | 3804 | && (plabel |
446f2863 | 3805 | || !IS_ABSOLUTE_RELOC (r_type) |
0e1862bb | 3806 | || !bfd_link_pic (info) |
a496fbc8 | 3807 | || !SYMBOLIC_BIND (info, &hh->eh) |
a63e02c7 | 3808 | || !hh->eh.def_regular)) |
252b5132 | 3809 | { |
a63e02c7 | 3810 | outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type); |
30667bf3 AM |
3811 | } |
3812 | else /* It's a local symbol, or one marked to become local. */ | |
3813 | { | |
3814 | int indx = 0; | |
edd21aca | 3815 | |
30667bf3 AM |
3816 | /* Add the absolute offset of the symbol. */ |
3817 | outrel.r_addend += relocation; | |
edd21aca | 3818 | |
74d1c347 AM |
3819 | /* Global plabels need to be processed by the |
3820 | dynamic linker so that functions have at most one | |
3821 | fptr. For this reason, we need to differentiate | |
3822 | between global and local plabels, which we do by | |
3823 | providing the function symbol for a global plabel | |
3824 | reloc, and no symbol for local plabels. */ | |
3825 | if (! plabel | |
3826 | && sym_sec != NULL | |
30667bf3 AM |
3827 | && sym_sec->output_section != NULL |
3828 | && ! bfd_is_abs_section (sym_sec)) | |
252b5132 | 3829 | { |
74541ad4 AM |
3830 | asection *osec; |
3831 | ||
3832 | osec = sym_sec->output_section; | |
3833 | indx = elf_section_data (osec)->dynindx; | |
3834 | if (indx == 0) | |
3835 | { | |
3836 | osec = htab->etab.text_index_section; | |
3837 | indx = elf_section_data (osec)->dynindx; | |
3838 | } | |
3839 | BFD_ASSERT (indx != 0); | |
4b71bec0 | 3840 | |
30667bf3 AM |
3841 | /* We are turning this relocation into one |
3842 | against a section symbol, so subtract out the | |
3843 | output section's address but not the offset | |
3844 | of the input section in the output section. */ | |
74541ad4 | 3845 | outrel.r_addend -= osec->vma; |
252b5132 | 3846 | } |
252b5132 | 3847 | |
30667bf3 AM |
3848 | outrel.r_info = ELF32_R_INFO (indx, r_type); |
3849 | } | |
98ceb8ce AM |
3850 | sreloc = elf_section_data (input_section)->sreloc; |
3851 | if (sreloc == NULL) | |
3852 | abort (); | |
3853 | ||
947216bf AM |
3854 | loc = sreloc->contents; |
3855 | loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela); | |
98ceb8ce | 3856 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
30667bf3 AM |
3857 | } |
3858 | break; | |
68ffbac6 | 3859 | |
9b52905e NC |
3860 | case R_PARISC_TLS_LDM21L: |
3861 | case R_PARISC_TLS_LDM14R: | |
3862 | { | |
3863 | bfd_vma off; | |
68ffbac6 | 3864 | |
9b52905e NC |
3865 | off = htab->tls_ldm_got.offset; |
3866 | if (off & 1) | |
3867 | off &= ~1; | |
3868 | else | |
3869 | { | |
3870 | Elf_Internal_Rela outrel; | |
3871 | bfd_byte *loc; | |
3872 | ||
68ffbac6 | 3873 | outrel.r_offset = (off |
ce558b89 AM |
3874 | + htab->etab.sgot->output_section->vma |
3875 | + htab->etab.sgot->output_offset); | |
9b52905e NC |
3876 | outrel.r_addend = 0; |
3877 | outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32); | |
ce558b89 AM |
3878 | loc = htab->etab.srelgot->contents; |
3879 | loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela); | |
9b52905e NC |
3880 | |
3881 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3882 | htab->tls_ldm_got.offset |= 1; | |
3883 | } | |
3884 | ||
3885 | /* Add the base of the GOT to the relocation value. */ | |
3886 | relocation = (off | |
ce558b89 AM |
3887 | + htab->etab.sgot->output_offset |
3888 | + htab->etab.sgot->output_section->vma); | |
9b52905e NC |
3889 | |
3890 | break; | |
3891 | } | |
3892 | ||
3893 | case R_PARISC_TLS_LDO21L: | |
3894 | case R_PARISC_TLS_LDO14R: | |
3895 | relocation -= dtpoff_base (info); | |
3896 | break; | |
3897 | ||
3898 | case R_PARISC_TLS_GD21L: | |
3899 | case R_PARISC_TLS_GD14R: | |
3900 | case R_PARISC_TLS_IE21L: | |
3901 | case R_PARISC_TLS_IE14R: | |
3902 | { | |
3903 | bfd_vma off; | |
3904 | int indx; | |
3905 | char tls_type; | |
3906 | ||
3907 | indx = 0; | |
3908 | if (hh != NULL) | |
3909 | { | |
2e684e75 AM |
3910 | if (!htab->etab.dynamic_sections_created |
3911 | || hh->eh.dynindx == -1 | |
3912 | || SYMBOL_REFERENCES_LOCAL (info, &hh->eh) | |
3913 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh)) | |
3914 | /* This is actually a static link, or it is a | |
3915 | -Bsymbolic link and the symbol is defined | |
3916 | locally, or the symbol was forced to be local | |
3917 | because of a version file. */ | |
3918 | ; | |
3919 | else | |
3920 | indx = hh->eh.dynindx; | |
9b52905e NC |
3921 | off = hh->eh.got.offset; |
3922 | tls_type = hh->tls_type; | |
3923 | } | |
3924 | else | |
3925 | { | |
3926 | off = local_got_offsets[r_symndx]; | |
3927 | tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx]; | |
3928 | } | |
3929 | ||
3930 | if (tls_type == GOT_UNKNOWN) | |
3931 | abort (); | |
3932 | ||
3933 | if ((off & 1) != 0) | |
3934 | off &= ~1; | |
3935 | else | |
3936 | { | |
3937 | bfd_boolean need_relocs = FALSE; | |
3938 | Elf_Internal_Rela outrel; | |
3939 | bfd_byte *loc = NULL; | |
3940 | int cur_off = off; | |
3941 | ||
07d6d2b8 AM |
3942 | /* The GOT entries have not been initialized yet. Do it |
3943 | now, and emit any relocations. If both an IE GOT and a | |
3944 | GD GOT are necessary, we emit the GD first. */ | |
9b52905e | 3945 | |
2e684e75 | 3946 | if (indx != 0 |
4352556b | 3947 | || (bfd_link_dll (info) |
2e684e75 AM |
3948 | && (hh == NULL |
3949 | || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &hh->eh)))) | |
9b52905e NC |
3950 | { |
3951 | need_relocs = TRUE; | |
ce558b89 | 3952 | loc = htab->etab.srelgot->contents; |
2e684e75 AM |
3953 | loc += (htab->etab.srelgot->reloc_count |
3954 | * sizeof (Elf32_External_Rela)); | |
9b52905e NC |
3955 | } |
3956 | ||
3957 | if (tls_type & GOT_TLS_GD) | |
3958 | { | |
3959 | if (need_relocs) | |
3960 | { | |
2e684e75 AM |
3961 | outrel.r_offset |
3962 | = (cur_off | |
3963 | + htab->etab.sgot->output_section->vma | |
3964 | + htab->etab.sgot->output_offset); | |
3965 | outrel.r_info | |
3966 | = ELF32_R_INFO (indx, R_PARISC_TLS_DTPMOD32); | |
9b52905e | 3967 | outrel.r_addend = 0; |
9b52905e | 3968 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
ce558b89 | 3969 | htab->etab.srelgot->reloc_count++; |
9b52905e | 3970 | loc += sizeof (Elf32_External_Rela); |
4352556b AM |
3971 | bfd_put_32 (output_bfd, 0, |
3972 | htab->etab.sgot->contents + cur_off); | |
3973 | } | |
3974 | else | |
3975 | /* If we are not emitting relocations for a | |
3976 | general dynamic reference, then we must be in a | |
3977 | static link or an executable link with the | |
3978 | symbol binding locally. Mark it as belonging | |
3979 | to module 1, the executable. */ | |
3980 | bfd_put_32 (output_bfd, 1, | |
3981 | htab->etab.sgot->contents + cur_off); | |
3982 | ||
3983 | if (indx != 0) | |
3984 | { | |
2e684e75 AM |
3985 | outrel.r_info |
3986 | = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32); | |
3987 | outrel.r_offset += 4; | |
3988 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); | |
3989 | htab->etab.srelgot->reloc_count++; | |
3990 | loc += sizeof (Elf32_External_Rela); | |
2e684e75 AM |
3991 | bfd_put_32 (output_bfd, 0, |
3992 | htab->etab.sgot->contents + cur_off + 4); | |
9b52905e NC |
3993 | } |
3994 | else | |
4352556b AM |
3995 | bfd_put_32 (output_bfd, relocation - dtpoff_base (info), |
3996 | htab->etab.sgot->contents + cur_off + 4); | |
9b52905e NC |
3997 | cur_off += 8; |
3998 | } | |
3999 | ||
4000 | if (tls_type & GOT_TLS_IE) | |
4001 | { | |
2e684e75 AM |
4002 | if (need_relocs |
4003 | && !(bfd_link_executable (info) | |
4004 | && SYMBOL_REFERENCES_LOCAL (info, &hh->eh))) | |
9b52905e | 4005 | { |
2e684e75 AM |
4006 | outrel.r_offset |
4007 | = (cur_off | |
4008 | + htab->etab.sgot->output_section->vma | |
4009 | + htab->etab.sgot->output_offset); | |
4010 | outrel.r_info = ELF32_R_INFO (indx, | |
4011 | R_PARISC_TLS_TPREL32); | |
9b52905e NC |
4012 | if (indx == 0) |
4013 | outrel.r_addend = relocation - dtpoff_base (info); | |
4014 | else | |
4015 | outrel.r_addend = 0; | |
9b52905e | 4016 | bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc); |
ce558b89 | 4017 | htab->etab.srelgot->reloc_count++; |
9b52905e NC |
4018 | loc += sizeof (Elf32_External_Rela); |
4019 | } | |
4020 | else | |
4021 | bfd_put_32 (output_bfd, tpoff (info, relocation), | |
ce558b89 | 4022 | htab->etab.sgot->contents + cur_off); |
9b52905e NC |
4023 | cur_off += 4; |
4024 | } | |
4025 | ||
4026 | if (hh != NULL) | |
4027 | hh->eh.got.offset |= 1; | |
4028 | else | |
4029 | local_got_offsets[r_symndx] |= 1; | |
4030 | } | |
4031 | ||
2e684e75 AM |
4032 | if ((tls_type & GOT_NORMAL) != 0 |
4033 | && (tls_type & (GOT_TLS_GD | GOT_TLS_LDM | GOT_TLS_IE)) != 0) | |
4034 | { | |
4035 | if (hh != NULL) | |
4036 | _bfd_error_handler (_("%s has both normal and TLS relocs"), | |
4037 | hh_name (hh)); | |
4038 | else | |
4039 | { | |
4040 | Elf_Internal_Sym *isym | |
4041 | = bfd_sym_from_r_symndx (&htab->sym_cache, | |
4042 | input_bfd, r_symndx); | |
4043 | if (isym == NULL) | |
4044 | return FALSE; | |
4045 | sym_name | |
4046 | = bfd_elf_string_from_elf_section (input_bfd, | |
4047 | symtab_hdr->sh_link, | |
4048 | isym->st_name); | |
4049 | if (sym_name == NULL) | |
4050 | return FALSE; | |
4051 | if (*sym_name == '\0') | |
fd361982 | 4052 | sym_name = bfd_section_name (sym_sec); |
2e684e75 | 4053 | _bfd_error_handler |
871b3ab2 | 4054 | (_("%pB:%s has both normal and TLS relocs"), |
2e684e75 AM |
4055 | input_bfd, sym_name); |
4056 | } | |
4057 | bfd_set_error (bfd_error_bad_value); | |
4058 | return FALSE; | |
4059 | } | |
4060 | ||
9b52905e | 4061 | if ((tls_type & GOT_TLS_GD) |
07d6d2b8 AM |
4062 | && r_type != R_PARISC_TLS_GD21L |
4063 | && r_type != R_PARISC_TLS_GD14R) | |
9b52905e NC |
4064 | off += 2 * GOT_ENTRY_SIZE; |
4065 | ||
4066 | /* Add the base of the GOT to the relocation value. */ | |
4067 | relocation = (off | |
ce558b89 AM |
4068 | + htab->etab.sgot->output_offset |
4069 | + htab->etab.sgot->output_section->vma); | |
9b52905e NC |
4070 | |
4071 | break; | |
4072 | } | |
4073 | ||
4074 | case R_PARISC_TLS_LE21L: | |
4075 | case R_PARISC_TLS_LE14R: | |
4076 | { | |
4077 | relocation = tpoff (info, relocation); | |
4078 | break; | |
4079 | } | |
4080 | break; | |
edd21aca | 4081 | |
30667bf3 AM |
4082 | default: |
4083 | break; | |
4084 | } | |
252b5132 | 4085 | |
875c0872 DA |
4086 | rstatus = final_link_relocate (input_section, contents, rela, relocation, |
4087 | htab, sym_sec, hh, info); | |
252b5132 | 4088 | |
875c0872 | 4089 | if (rstatus == bfd_reloc_ok) |
30667bf3 | 4090 | continue; |
252b5132 | 4091 | |
875c0872 | 4092 | if (hh != NULL) |
9b52905e | 4093 | sym_name = hh_name (hh); |
30667bf3 AM |
4094 | else |
4095 | { | |
4096 | sym_name = bfd_elf_string_from_elf_section (input_bfd, | |
4097 | symtab_hdr->sh_link, | |
4098 | sym->st_name); | |
4099 | if (sym_name == NULL) | |
b34976b6 | 4100 | return FALSE; |
30667bf3 | 4101 | if (*sym_name == '\0') |
fd361982 | 4102 | sym_name = bfd_section_name (sym_sec); |
30667bf3 | 4103 | } |
edd21aca | 4104 | |
30667bf3 | 4105 | howto = elf_hppa_howto_table + r_type; |
252b5132 | 4106 | |
875c0872 | 4107 | if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported) |
30667bf3 | 4108 | { |
875c0872 | 4109 | if (rstatus == bfd_reloc_notsupported || !warned_undef) |
f09ebc7d | 4110 | { |
4eca0228 | 4111 | _bfd_error_handler |
695344c0 | 4112 | /* xgettext:c-format */ |
2dcf00ce | 4113 | (_("%pB(%pA+%#" PRIx64 "): cannot handle %s for %s"), |
d003868e AM |
4114 | input_bfd, |
4115 | input_section, | |
2dcf00ce | 4116 | (uint64_t) rela->r_offset, |
f09ebc7d AM |
4117 | howto->name, |
4118 | sym_name); | |
4119 | bfd_set_error (bfd_error_bad_value); | |
b34976b6 | 4120 | return FALSE; |
f09ebc7d | 4121 | } |
30667bf3 AM |
4122 | } |
4123 | else | |
1a72702b AM |
4124 | (*info->callbacks->reloc_overflow) |
4125 | (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name, | |
4126 | (bfd_vma) 0, input_bfd, input_section, rela->r_offset); | |
30667bf3 | 4127 | } |
edd21aca | 4128 | |
b34976b6 | 4129 | return TRUE; |
30667bf3 | 4130 | } |
252b5132 | 4131 | |
30667bf3 AM |
4132 | /* Finish up dynamic symbol handling. We set the contents of various |
4133 | dynamic sections here. */ | |
252b5132 | 4134 | |
b34976b6 | 4135 | static bfd_boolean |
c39a58e6 AM |
4136 | elf32_hppa_finish_dynamic_symbol (bfd *output_bfd, |
4137 | struct bfd_link_info *info, | |
875c0872 | 4138 | struct elf_link_hash_entry *eh, |
c39a58e6 | 4139 | Elf_Internal_Sym *sym) |
30667bf3 | 4140 | { |
83c81bfe | 4141 | struct elf32_hppa_link_hash_table *htab; |
875c0872 | 4142 | Elf_Internal_Rela rela; |
a252afa4 | 4143 | bfd_byte *loc; |
edd21aca | 4144 | |
83c81bfe | 4145 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
4146 | if (htab == NULL) |
4147 | return FALSE; | |
30667bf3 | 4148 | |
875c0872 | 4149 | if (eh->plt.offset != (bfd_vma) -1) |
30667bf3 AM |
4150 | { |
4151 | bfd_vma value; | |
30667bf3 | 4152 | |
875c0872 | 4153 | if (eh->plt.offset & 1) |
8dea1268 AM |
4154 | abort (); |
4155 | ||
30667bf3 AM |
4156 | /* This symbol has an entry in the procedure linkage table. Set |
4157 | it up. | |
4158 | ||
4159 | The format of a plt entry is | |
74d1c347 AM |
4160 | <funcaddr> |
4161 | <__gp> | |
47d89dba | 4162 | */ |
30667bf3 | 4163 | value = 0; |
875c0872 DA |
4164 | if (eh->root.type == bfd_link_hash_defined |
4165 | || eh->root.type == bfd_link_hash_defweak) | |
30667bf3 | 4166 | { |
875c0872 DA |
4167 | value = eh->root.u.def.value; |
4168 | if (eh->root.u.def.section->output_section != NULL) | |
4169 | value += (eh->root.u.def.section->output_offset | |
4170 | + eh->root.u.def.section->output_section->vma); | |
252b5132 | 4171 | } |
edd21aca | 4172 | |
a252afa4 | 4173 | /* Create a dynamic IPLT relocation for this entry. */ |
875c0872 | 4174 | rela.r_offset = (eh->plt.offset |
ce558b89 AM |
4175 | + htab->etab.splt->output_offset |
4176 | + htab->etab.splt->output_section->vma); | |
875c0872 | 4177 | if (eh->dynindx != -1) |
30667bf3 | 4178 | { |
875c0872 DA |
4179 | rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT); |
4180 | rela.r_addend = 0; | |
30667bf3 | 4181 | } |
ce757d15 | 4182 | else |
47d89dba | 4183 | { |
a252afa4 DA |
4184 | /* This symbol has been marked to become local, and is |
4185 | used by a plabel so must be kept in the .plt. */ | |
875c0872 DA |
4186 | rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT); |
4187 | rela.r_addend = value; | |
47d89dba AM |
4188 | } |
4189 | ||
ce558b89 AM |
4190 | loc = htab->etab.srelplt->contents; |
4191 | loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela); | |
4192 | bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc); | |
a252afa4 | 4193 | |
875c0872 | 4194 | if (!eh->def_regular) |
30667bf3 AM |
4195 | { |
4196 | /* Mark the symbol as undefined, rather than as defined in | |
4197 | the .plt section. Leave the value alone. */ | |
4198 | sym->st_shndx = SHN_UNDEF; | |
4199 | } | |
4200 | } | |
edd21aca | 4201 | |
9b52905e | 4202 | if (eh->got.offset != (bfd_vma) -1 |
2e684e75 | 4203 | && (hppa_elf_hash_entry (eh)->tls_type & GOT_NORMAL) != 0 |
d336fa6d | 4204 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, eh)) |
30667bf3 | 4205 | { |
d336fa6d AM |
4206 | bfd_boolean is_dyn = (eh->dynindx != -1 |
4207 | && !SYMBOL_REFERENCES_LOCAL (info, eh)); | |
4208 | ||
4209 | if (is_dyn || bfd_link_pic (info)) | |
30667bf3 | 4210 | { |
d336fa6d AM |
4211 | /* This symbol has an entry in the global offset table. Set |
4212 | it up. */ | |
4213 | ||
4214 | rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1) | |
4215 | + htab->etab.sgot->output_offset | |
4216 | + htab->etab.sgot->output_section->vma); | |
4217 | ||
4218 | /* If this is a -Bsymbolic link and the symbol is defined | |
4219 | locally or was forced to be local because of a version | |
4220 | file, we just want to emit a RELATIVE reloc. The entry | |
4221 | in the global offset table will already have been | |
4222 | initialized in the relocate_section function. */ | |
4223 | if (!is_dyn) | |
4224 | { | |
4225 | rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32); | |
4226 | rela.r_addend = (eh->root.u.def.value | |
4227 | + eh->root.u.def.section->output_offset | |
4228 | + eh->root.u.def.section->output_section->vma); | |
4229 | } | |
4230 | else | |
4231 | { | |
4232 | if ((eh->got.offset & 1) != 0) | |
4233 | abort (); | |
875c0872 | 4234 | |
d336fa6d AM |
4235 | bfd_put_32 (output_bfd, 0, |
4236 | htab->etab.sgot->contents + (eh->got.offset & ~1)); | |
4237 | rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32); | |
4238 | rela.r_addend = 0; | |
4239 | } | |
edd21aca | 4240 | |
d336fa6d AM |
4241 | loc = htab->etab.srelgot->contents; |
4242 | loc += (htab->etab.srelgot->reloc_count++ | |
4243 | * sizeof (Elf32_External_Rela)); | |
4244 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
4245 | } | |
30667bf3 | 4246 | } |
edd21aca | 4247 | |
875c0872 | 4248 | if (eh->needs_copy) |
30667bf3 | 4249 | { |
875c0872 | 4250 | asection *sec; |
30667bf3 AM |
4251 | |
4252 | /* This symbol needs a copy reloc. Set it up. */ | |
4253 | ||
875c0872 DA |
4254 | if (! (eh->dynindx != -1 |
4255 | && (eh->root.type == bfd_link_hash_defined | |
4256 | || eh->root.type == bfd_link_hash_defweak))) | |
49e9d0d3 | 4257 | abort (); |
30667bf3 | 4258 | |
875c0872 DA |
4259 | rela.r_offset = (eh->root.u.def.value |
4260 | + eh->root.u.def.section->output_offset | |
4261 | + eh->root.u.def.section->output_section->vma); | |
4262 | rela.r_addend = 0; | |
4263 | rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY); | |
afbf7e8e | 4264 | if (eh->root.u.def.section == htab->etab.sdynrelro) |
5474d94f AM |
4265 | sec = htab->etab.sreldynrelro; |
4266 | else | |
4267 | sec = htab->etab.srelbss; | |
875c0872 DA |
4268 | loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela); |
4269 | bfd_elf32_swap_reloca_out (output_bfd, &rela, loc); | |
30667bf3 AM |
4270 | } |
4271 | ||
4272 | /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */ | |
9637f6ef | 4273 | if (eh == htab->etab.hdynamic || eh == htab->etab.hgot) |
30667bf3 AM |
4274 | { |
4275 | sym->st_shndx = SHN_ABS; | |
4276 | } | |
4277 | ||
b34976b6 | 4278 | return TRUE; |
30667bf3 AM |
4279 | } |
4280 | ||
98ceb8ce AM |
4281 | /* Used to decide how to sort relocs in an optimal manner for the |
4282 | dynamic linker, before writing them out. */ | |
4283 | ||
4284 | static enum elf_reloc_type_class | |
7e612e98 AM |
4285 | elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED, |
4286 | const asection *rel_sec ATTRIBUTE_UNUSED, | |
4287 | const Elf_Internal_Rela *rela) | |
98ceb8ce | 4288 | { |
9b52905e | 4289 | /* Handle TLS relocs first; we don't want them to be marked |
cf35638d | 4290 | relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)" |
9b52905e NC |
4291 | check below. */ |
4292 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4293 | { | |
4294 | case R_PARISC_TLS_DTPMOD32: | |
4295 | case R_PARISC_TLS_DTPOFF32: | |
4296 | case R_PARISC_TLS_TPREL32: | |
07d6d2b8 | 4297 | return reloc_class_normal; |
9b52905e NC |
4298 | } |
4299 | ||
cf35638d | 4300 | if (ELF32_R_SYM (rela->r_info) == STN_UNDEF) |
98ceb8ce AM |
4301 | return reloc_class_relative; |
4302 | ||
4303 | switch ((int) ELF32_R_TYPE (rela->r_info)) | |
4304 | { | |
4305 | case R_PARISC_IPLT: | |
4306 | return reloc_class_plt; | |
4307 | case R_PARISC_COPY: | |
4308 | return reloc_class_copy; | |
4309 | default: | |
4310 | return reloc_class_normal; | |
4311 | } | |
4312 | } | |
4313 | ||
30667bf3 AM |
4314 | /* Finish up the dynamic sections. */ |
4315 | ||
b34976b6 | 4316 | static bfd_boolean |
c39a58e6 AM |
4317 | elf32_hppa_finish_dynamic_sections (bfd *output_bfd, |
4318 | struct bfd_link_info *info) | |
30667bf3 AM |
4319 | { |
4320 | bfd *dynobj; | |
83c81bfe | 4321 | struct elf32_hppa_link_hash_table *htab; |
30667bf3 | 4322 | asection *sdyn; |
894891db | 4323 | asection * sgot; |
30667bf3 | 4324 | |
83c81bfe | 4325 | htab = hppa_link_hash_table (info); |
4dfe6ac6 NC |
4326 | if (htab == NULL) |
4327 | return FALSE; | |
4328 | ||
a63e02c7 | 4329 | dynobj = htab->etab.dynobj; |
30667bf3 | 4330 | |
ce558b89 | 4331 | sgot = htab->etab.sgot; |
894891db NC |
4332 | /* A broken linker script might have discarded the dynamic sections. |
4333 | Catch this here so that we do not seg-fault later on. */ | |
4334 | if (sgot != NULL && bfd_is_abs_section (sgot->output_section)) | |
4335 | return FALSE; | |
4336 | ||
3d4d4302 | 4337 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
30667bf3 | 4338 | |
a63e02c7 | 4339 | if (htab->etab.dynamic_sections_created) |
30667bf3 AM |
4340 | { |
4341 | Elf32_External_Dyn *dyncon, *dynconend; | |
4342 | ||
49e9d0d3 AM |
4343 | if (sdyn == NULL) |
4344 | abort (); | |
30667bf3 AM |
4345 | |
4346 | dyncon = (Elf32_External_Dyn *) sdyn->contents; | |
eea6121a | 4347 | dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size); |
30667bf3 | 4348 | for (; dyncon < dynconend; dyncon++) |
edd21aca | 4349 | { |
30667bf3 AM |
4350 | Elf_Internal_Dyn dyn; |
4351 | asection *s; | |
4352 | ||
4353 | bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn); | |
4354 | ||
4355 | switch (dyn.d_tag) | |
4356 | { | |
4357 | default: | |
3ac8354b | 4358 | continue; |
30667bf3 AM |
4359 | |
4360 | case DT_PLTGOT: | |
4361 | /* Use PLTGOT to set the GOT register. */ | |
4362 | dyn.d_un.d_ptr = elf_gp (output_bfd); | |
30667bf3 AM |
4363 | break; |
4364 | ||
4365 | case DT_JMPREL: | |
ce558b89 | 4366 | s = htab->etab.srelplt; |
30667bf3 | 4367 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
30667bf3 AM |
4368 | break; |
4369 | ||
4370 | case DT_PLTRELSZ: | |
ce558b89 | 4371 | s = htab->etab.srelplt; |
eea6121a | 4372 | dyn.d_un.d_val = s->size; |
30667bf3 AM |
4373 | break; |
4374 | } | |
3ac8354b AM |
4375 | |
4376 | bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon); | |
edd21aca | 4377 | } |
252b5132 | 4378 | } |
edd21aca | 4379 | |
894891db | 4380 | if (sgot != NULL && sgot->size != 0) |
30667bf3 | 4381 | { |
74d1c347 AM |
4382 | /* Fill in the first entry in the global offset table. |
4383 | We use it to point to our dynamic section, if we have one. */ | |
30667bf3 | 4384 | bfd_put_32 (output_bfd, |
c39a58e6 | 4385 | sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0, |
894891db | 4386 | sgot->contents); |
30667bf3 | 4387 | |
74d1c347 | 4388 | /* The second entry is reserved for use by the dynamic linker. */ |
894891db | 4389 | memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE); |
74d1c347 | 4390 | |
30667bf3 | 4391 | /* Set .got entry size. */ |
894891db | 4392 | elf_section_data (sgot->output_section) |
74d1c347 | 4393 | ->this_hdr.sh_entsize = GOT_ENTRY_SIZE; |
30667bf3 AM |
4394 | } |
4395 | ||
ce558b89 | 4396 | if (htab->etab.splt != NULL && htab->etab.splt->size != 0) |
47d89dba | 4397 | { |
f3c3938c JDA |
4398 | /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the |
4399 | plt stubs and as such the section does not hold a table of fixed-size | |
4400 | entries. */ | |
ce558b89 | 4401 | elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0; |
47d89dba | 4402 | |
83c81bfe | 4403 | if (htab->need_plt_stub) |
47d89dba AM |
4404 | { |
4405 | /* Set up the .plt stub. */ | |
ce558b89 AM |
4406 | memcpy (htab->etab.splt->contents |
4407 | + htab->etab.splt->size - sizeof (plt_stub), | |
47d89dba AM |
4408 | plt_stub, sizeof (plt_stub)); |
4409 | ||
ce558b89 AM |
4410 | if ((htab->etab.splt->output_offset |
4411 | + htab->etab.splt->output_section->vma | |
4412 | + htab->etab.splt->size) | |
894891db NC |
4413 | != (sgot->output_offset |
4414 | + sgot->output_section->vma)) | |
47d89dba | 4415 | { |
4eca0228 | 4416 | _bfd_error_handler |
47d89dba | 4417 | (_(".got section not immediately after .plt section")); |
b34976b6 | 4418 | return FALSE; |
47d89dba AM |
4419 | } |
4420 | } | |
4421 | } | |
30667bf3 | 4422 | |
b34976b6 | 4423 | return TRUE; |
30667bf3 | 4424 | } |
252b5132 | 4425 | |
30667bf3 AM |
4426 | /* Called when writing out an object file to decide the type of a |
4427 | symbol. */ | |
4428 | static int | |
c39a58e6 | 4429 | elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type) |
30667bf3 AM |
4430 | { |
4431 | if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI) | |
4432 | return STT_PARISC_MILLI; | |
4433 | else | |
4434 | return type; | |
252b5132 RH |
4435 | } |
4436 | ||
4437 | /* Misc BFD support code. */ | |
30667bf3 AM |
4438 | #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name |
4439 | #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup | |
0c8d6e5c | 4440 | #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup |
30667bf3 AM |
4441 | #define elf_info_to_howto elf_hppa_info_to_howto |
4442 | #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel | |
252b5132 | 4443 | |
252b5132 | 4444 | /* Stuff for the BFD linker. */ |
c46b7515 | 4445 | #define bfd_elf32_bfd_final_link elf32_hppa_final_link |
30667bf3 | 4446 | #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create |
30667bf3 | 4447 | #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol |
ebe50bae | 4448 | #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol |
30667bf3 | 4449 | #define elf_backend_check_relocs elf32_hppa_check_relocs |
c0e331c7 | 4450 | #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible |
30667bf3 AM |
4451 | #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections |
4452 | #define elf_backend_fake_sections elf_hppa_fake_sections | |
4453 | #define elf_backend_relocate_section elf32_hppa_relocate_section | |
74d1c347 | 4454 | #define elf_backend_hide_symbol elf32_hppa_hide_symbol |
30667bf3 AM |
4455 | #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol |
4456 | #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections | |
4457 | #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections | |
74541ad4 | 4458 | #define elf_backend_init_index_section _bfd_elf_init_1_index_section |
30667bf3 | 4459 | #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook |
edfc032f AM |
4460 | #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus |
4461 | #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo | |
30667bf3 AM |
4462 | #define elf_backend_object_p elf32_hppa_object_p |
4463 | #define elf_backend_final_write_processing elf_hppa_final_write_processing | |
4464 | #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type | |
98ceb8ce | 4465 | #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class |
8a696751 | 4466 | #define elf_backend_action_discarded elf_hppa_action_discarded |
30667bf3 AM |
4467 | |
4468 | #define elf_backend_can_gc_sections 1 | |
51b64d56 | 4469 | #define elf_backend_can_refcount 1 |
30667bf3 AM |
4470 | #define elf_backend_plt_alignment 2 |
4471 | #define elf_backend_want_got_plt 0 | |
4472 | #define elf_backend_plt_readonly 0 | |
4473 | #define elf_backend_want_plt_sym 0 | |
74d1c347 | 4474 | #define elf_backend_got_header_size 8 |
5474d94f | 4475 | #define elf_backend_want_dynrelro 1 |
f0fe0e16 | 4476 | #define elf_backend_rela_normal 1 |
64f52338 | 4477 | #define elf_backend_dtrel_excludes_plt 1 |
a8c75b76 | 4478 | #define elf_backend_no_page_alias 1 |
252b5132 | 4479 | |
6d00b590 | 4480 | #define TARGET_BIG_SYM hppa_elf32_vec |
252b5132 RH |
4481 | #define TARGET_BIG_NAME "elf32-hppa" |
4482 | #define ELF_ARCH bfd_arch_hppa | |
ae95ffa6 | 4483 | #define ELF_TARGET_ID HPPA32_ELF_DATA |
252b5132 RH |
4484 | #define ELF_MACHINE_CODE EM_PARISC |
4485 | #define ELF_MAXPAGESIZE 0x1000 | |
d1036acb | 4486 | #define ELF_OSABI ELFOSABI_HPUX |
914dfb0f | 4487 | #define elf32_bed elf32_hppa_hpux_bed |
252b5132 RH |
4488 | |
4489 | #include "elf32-target.h" | |
d952f17a AM |
4490 | |
4491 | #undef TARGET_BIG_SYM | |
6d00b590 | 4492 | #define TARGET_BIG_SYM hppa_elf32_linux_vec |
d952f17a | 4493 | #undef TARGET_BIG_NAME |
914dfb0f | 4494 | #define TARGET_BIG_NAME "elf32-hppa-linux" |
d1036acb | 4495 | #undef ELF_OSABI |
9c55345c | 4496 | #define ELF_OSABI ELFOSABI_GNU |
914dfb0f DA |
4497 | #undef elf32_bed |
4498 | #define elf32_bed elf32_hppa_linux_bed | |
d952f17a | 4499 | |
d952f17a | 4500 | #include "elf32-target.h" |
225247f0 JT |
4501 | |
4502 | #undef TARGET_BIG_SYM | |
6d00b590 | 4503 | #define TARGET_BIG_SYM hppa_elf32_nbsd_vec |
225247f0 | 4504 | #undef TARGET_BIG_NAME |
914dfb0f | 4505 | #define TARGET_BIG_NAME "elf32-hppa-netbsd" |
d1036acb L |
4506 | #undef ELF_OSABI |
4507 | #define ELF_OSABI ELFOSABI_NETBSD | |
914dfb0f DA |
4508 | #undef elf32_bed |
4509 | #define elf32_bed elf32_hppa_netbsd_bed | |
225247f0 JT |
4510 | |
4511 | #include "elf32-target.h" |