elf32-hppa.c revision 1.7 1 1.1 christos /* BFD back-end for HP PA-RISC ELF files.
2 1.7 christos Copyright (C) 1990-2017 Free Software Foundation, Inc.
3 1.1 christos
4 1.1 christos Original code by
5 1.1 christos Center for Software Science
6 1.1 christos Department of Computer Science
7 1.1 christos University of Utah
8 1.1 christos Largely rewritten by Alan Modra <alan (at) linuxcare.com.au>
9 1.1 christos Naming cleanup by Carlos O'Donell <carlos (at) systemhalted.org>
10 1.1 christos TLS support written by Randolph Chung <tausq (at) debian.org>
11 1.1 christos
12 1.1 christos This file is part of BFD, the Binary File Descriptor library.
13 1.1 christos
14 1.1 christos This program is free software; you can redistribute it and/or modify
15 1.1 christos it under the terms of the GNU General Public License as published by
16 1.1 christos the Free Software Foundation; either version 3 of the License, or
17 1.1 christos (at your option) any later version.
18 1.1 christos
19 1.1 christos This program is distributed in the hope that it will be useful,
20 1.1 christos but WITHOUT ANY WARRANTY; without even the implied warranty of
21 1.1 christos MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 1.1 christos GNU General Public License for more details.
23 1.1 christos
24 1.1 christos You should have received a copy of the GNU General Public License
25 1.1 christos along with this program; if not, write to the Free Software
26 1.1 christos Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
27 1.1 christos MA 02110-1301, USA. */
28 1.1 christos
29 1.1 christos #include "sysdep.h"
30 1.1 christos #include "bfd.h"
31 1.1 christos #include "libbfd.h"
32 1.1 christos #include "elf-bfd.h"
33 1.1 christos #include "elf/hppa.h"
34 1.1 christos #include "libhppa.h"
35 1.1 christos #include "elf32-hppa.h"
36 1.1 christos #define ARCH_SIZE 32
37 1.1 christos #include "elf32-hppa.h"
38 1.1 christos #include "elf-hppa.h"
39 1.1 christos
40 1.1 christos /* In order to gain some understanding of code in this file without
41 1.1 christos knowing all the intricate details of the linker, note the
42 1.1 christos following:
43 1.1 christos
44 1.1 christos Functions named elf32_hppa_* are called by external routines, other
45 1.1 christos functions are only called locally. elf32_hppa_* functions appear
46 1.1 christos in this file more or less in the order in which they are called
47 1.1 christos from external routines. eg. elf32_hppa_check_relocs is called
48 1.1 christos early in the link process, elf32_hppa_finish_dynamic_sections is
49 1.1 christos one of the last functions. */
50 1.1 christos
51 1.1 christos /* We use two hash tables to hold information for linking PA ELF objects.
52 1.1 christos
53 1.1 christos The first is the elf32_hppa_link_hash_table which is derived
54 1.1 christos from the standard ELF linker hash table. We use this as a place to
55 1.1 christos attach other hash tables and static information.
56 1.1 christos
57 1.1 christos The second is the stub hash table which is derived from the
58 1.1 christos base BFD hash table. The stub hash table holds the information
59 1.1 christos necessary to build the linker stubs during a link.
60 1.1 christos
61 1.1 christos There are a number of different stubs generated by the linker.
62 1.1 christos
63 1.1 christos Long branch stub:
64 1.1 christos : ldil LR'X,%r1
65 1.1 christos : be,n RR'X(%sr4,%r1)
66 1.1 christos
67 1.1 christos PIC long branch stub:
68 1.1 christos : b,l .+8,%r1
69 1.1 christos : addil LR'X - ($PIC_pcrel$0 - 4),%r1
70 1.1 christos : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
71 1.1 christos
72 1.1 christos Import stub to call shared library routine from normal object file
73 1.1 christos (single sub-space version)
74 1.1 christos : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
75 1.1 christos : ldw RR'lt_ptr+ltoff(%r1),%r21
76 1.1 christos : bv %r0(%r21)
77 1.1 christos : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
78 1.1 christos
79 1.1 christos Import stub to call shared library routine from shared library
80 1.1 christos (single sub-space version)
81 1.1 christos : addil LR'ltoff,%r19 ; get procedure entry point
82 1.1 christos : ldw RR'ltoff(%r1),%r21
83 1.1 christos : bv %r0(%r21)
84 1.1 christos : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
85 1.1 christos
86 1.1 christos Import stub to call shared library routine from normal object file
87 1.1 christos (multiple sub-space support)
88 1.1 christos : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
89 1.1 christos : ldw RR'lt_ptr+ltoff(%r1),%r21
90 1.1 christos : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
91 1.1 christos : ldsid (%r21),%r1
92 1.1 christos : mtsp %r1,%sr0
93 1.1 christos : be 0(%sr0,%r21) ; branch to target
94 1.1 christos : stw %rp,-24(%sp) ; save rp
95 1.1 christos
96 1.1 christos Import stub to call shared library routine from shared library
97 1.1 christos (multiple sub-space support)
98 1.1 christos : addil LR'ltoff,%r19 ; get procedure entry point
99 1.1 christos : ldw RR'ltoff(%r1),%r21
100 1.1 christos : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
101 1.1 christos : ldsid (%r21),%r1
102 1.1 christos : mtsp %r1,%sr0
103 1.1 christos : be 0(%sr0,%r21) ; branch to target
104 1.1 christos : stw %rp,-24(%sp) ; save rp
105 1.1 christos
106 1.1 christos Export stub to return from shared lib routine (multiple sub-space support)
107 1.1 christos One of these is created for each exported procedure in a shared
108 1.1 christos library (and stored in the shared lib). Shared lib routines are
109 1.1 christos called via the first instruction in the export stub so that we can
110 1.1 christos do an inter-space return. Not required for single sub-space.
111 1.1 christos : bl,n X,%rp ; trap the return
112 1.1 christos : nop
113 1.1 christos : ldw -24(%sp),%rp ; restore the original rp
114 1.1 christos : ldsid (%rp),%r1
115 1.1 christos : mtsp %r1,%sr0
116 1.1 christos : be,n 0(%sr0,%rp) ; inter-space return. */
117 1.1 christos
118 1.1 christos
119 1.1 christos /* Variable names follow a coding style.
120 1.1 christos Please follow this (Apps Hungarian) style:
121 1.1 christos
122 1.1 christos Structure/Variable Prefix
123 1.1 christos elf_link_hash_table "etab"
124 1.1 christos elf_link_hash_entry "eh"
125 1.1 christos
126 1.1 christos elf32_hppa_link_hash_table "htab"
127 1.1 christos elf32_hppa_link_hash_entry "hh"
128 1.1 christos
129 1.1 christos bfd_hash_table "btab"
130 1.1 christos bfd_hash_entry "bh"
131 1.1 christos
132 1.1 christos bfd_hash_table containing stubs "bstab"
133 1.1 christos elf32_hppa_stub_hash_entry "hsh"
134 1.1 christos
135 1.1 christos elf32_hppa_dyn_reloc_entry "hdh"
136 1.1 christos
137 1.1 christos Always remember to use GNU Coding Style. */
138 1.1 christos
139 1.1 christos #define PLT_ENTRY_SIZE 8
140 1.1 christos #define GOT_ENTRY_SIZE 4
141 1.1 christos #define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
142 1.1 christos
143 1.1 christos static const bfd_byte plt_stub[] =
144 1.1 christos {
145 1.1 christos 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
146 1.1 christos 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
147 1.1 christos 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
148 1.1 christos #define PLT_STUB_ENTRY (3*4)
149 1.1 christos 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
150 1.1 christos 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
151 1.1 christos 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
152 1.1 christos 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
153 1.1 christos };
154 1.1 christos
155 1.1 christos /* Section name for stubs is the associated section name plus this
156 1.1 christos string. */
157 1.1 christos #define STUB_SUFFIX ".stub"
158 1.1 christos
159 1.1 christos /* We don't need to copy certain PC- or GP-relative dynamic relocs
160 1.1 christos into a shared object's dynamic section. All the relocs of the
161 1.1 christos limited class we are interested in, are absolute. */
162 1.1 christos #ifndef RELATIVE_DYNRELOCS
163 1.1 christos #define RELATIVE_DYNRELOCS 0
164 1.1 christos #define IS_ABSOLUTE_RELOC(r_type) 1
165 1.1 christos #endif
166 1.1 christos
167 1.1 christos /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
168 1.1 christos copying dynamic variables from a shared lib into an app's dynbss
169 1.1 christos section, and instead use a dynamic relocation to point into the
170 1.1 christos shared lib. */
171 1.1 christos #define ELIMINATE_COPY_RELOCS 1
172 1.1 christos
173 1.1 christos enum elf32_hppa_stub_type
174 1.1 christos {
175 1.1 christos hppa_stub_long_branch,
176 1.1 christos hppa_stub_long_branch_shared,
177 1.1 christos hppa_stub_import,
178 1.1 christos hppa_stub_import_shared,
179 1.1 christos hppa_stub_export,
180 1.1 christos hppa_stub_none
181 1.1 christos };
182 1.1 christos
183 1.1 christos struct elf32_hppa_stub_hash_entry
184 1.1 christos {
185 1.1 christos /* Base hash table entry structure. */
186 1.1 christos struct bfd_hash_entry bh_root;
187 1.1 christos
188 1.1 christos /* The stub section. */
189 1.1 christos asection *stub_sec;
190 1.1 christos
191 1.1 christos /* Offset within stub_sec of the beginning of this stub. */
192 1.1 christos bfd_vma stub_offset;
193 1.1 christos
194 1.1 christos /* Given the symbol's value and its section we can determine its final
195 1.1 christos value when building the stubs (so the stub knows where to jump. */
196 1.1 christos bfd_vma target_value;
197 1.1 christos asection *target_section;
198 1.1 christos
199 1.1 christos enum elf32_hppa_stub_type stub_type;
200 1.1 christos
201 1.1 christos /* The symbol table entry, if any, that this was derived from. */
202 1.1 christos struct elf32_hppa_link_hash_entry *hh;
203 1.1 christos
204 1.1 christos /* Where this stub is being called from, or, in the case of combined
205 1.1 christos stub sections, the first input section in the group. */
206 1.1 christos asection *id_sec;
207 1.1 christos };
208 1.1 christos
209 1.1 christos struct elf32_hppa_link_hash_entry
210 1.1 christos {
211 1.1 christos struct elf_link_hash_entry eh;
212 1.1 christos
213 1.1 christos /* A pointer to the most recently used stub hash entry against this
214 1.1 christos symbol. */
215 1.1 christos struct elf32_hppa_stub_hash_entry *hsh_cache;
216 1.1 christos
217 1.1 christos /* Used to count relocations for delayed sizing of relocation
218 1.1 christos sections. */
219 1.1 christos struct elf32_hppa_dyn_reloc_entry
220 1.1 christos {
221 1.1 christos /* Next relocation in the chain. */
222 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_next;
223 1.1 christos
224 1.1 christos /* The input section of the reloc. */
225 1.1 christos asection *sec;
226 1.1 christos
227 1.1 christos /* Number of relocs copied in this section. */
228 1.1 christos bfd_size_type count;
229 1.1 christos
230 1.1 christos #if RELATIVE_DYNRELOCS
231 1.1 christos /* Number of relative relocs copied for the input section. */
232 1.1 christos bfd_size_type relative_count;
233 1.1 christos #endif
234 1.1 christos } *dyn_relocs;
235 1.1 christos
236 1.1 christos enum
237 1.1 christos {
238 1.1 christos GOT_UNKNOWN = 0, GOT_NORMAL = 1, GOT_TLS_GD = 2, GOT_TLS_LDM = 4, GOT_TLS_IE = 8
239 1.1 christos } tls_type;
240 1.1 christos
241 1.1 christos /* Set if this symbol is used by a plabel reloc. */
242 1.1 christos unsigned int plabel:1;
243 1.1 christos };
244 1.1 christos
245 1.1 christos struct elf32_hppa_link_hash_table
246 1.1 christos {
247 1.1 christos /* The main hash table. */
248 1.1 christos struct elf_link_hash_table etab;
249 1.1 christos
250 1.1 christos /* The stub hash table. */
251 1.1 christos struct bfd_hash_table bstab;
252 1.1 christos
253 1.1 christos /* Linker stub bfd. */
254 1.1 christos bfd *stub_bfd;
255 1.1 christos
256 1.1 christos /* Linker call-backs. */
257 1.1 christos asection * (*add_stub_section) (const char *, asection *);
258 1.1 christos void (*layout_sections_again) (void);
259 1.1 christos
260 1.1 christos /* Array to keep track of which stub sections have been created, and
261 1.1 christos information on stub grouping. */
262 1.1 christos struct map_stub
263 1.1 christos {
264 1.1 christos /* This is the section to which stubs in the group will be
265 1.1 christos attached. */
266 1.1 christos asection *link_sec;
267 1.1 christos /* The stub section. */
268 1.1 christos asection *stub_sec;
269 1.1 christos } *stub_group;
270 1.1 christos
271 1.1 christos /* Assorted information used by elf32_hppa_size_stubs. */
272 1.1 christos unsigned int bfd_count;
273 1.6 christos unsigned int top_index;
274 1.1 christos asection **input_list;
275 1.1 christos Elf_Internal_Sym **all_local_syms;
276 1.1 christos
277 1.1 christos /* Used during a final link to store the base of the text and data
278 1.1 christos segments so that we can perform SEGREL relocations. */
279 1.1 christos bfd_vma text_segment_base;
280 1.1 christos bfd_vma data_segment_base;
281 1.1 christos
282 1.1 christos /* Whether we support multiple sub-spaces for shared libs. */
283 1.1 christos unsigned int multi_subspace:1;
284 1.1 christos
285 1.1 christos /* Flags set when various size branches are detected. Used to
286 1.1 christos select suitable defaults for the stub group size. */
287 1.1 christos unsigned int has_12bit_branch:1;
288 1.1 christos unsigned int has_17bit_branch:1;
289 1.1 christos unsigned int has_22bit_branch:1;
290 1.1 christos
291 1.1 christos /* Set if we need a .plt stub to support lazy dynamic linking. */
292 1.1 christos unsigned int need_plt_stub:1;
293 1.1 christos
294 1.1 christos /* Small local sym cache. */
295 1.1 christos struct sym_cache sym_cache;
296 1.1 christos
297 1.1 christos /* Data for LDM relocations. */
298 1.1 christos union
299 1.1 christos {
300 1.1 christos bfd_signed_vma refcount;
301 1.1 christos bfd_vma offset;
302 1.1 christos } tls_ldm_got;
303 1.1 christos };
304 1.1 christos
305 1.1 christos /* Various hash macros and functions. */
306 1.1 christos #define hppa_link_hash_table(p) \
307 1.1 christos (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
308 1.1 christos == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
309 1.1 christos
310 1.1 christos #define hppa_elf_hash_entry(ent) \
311 1.1 christos ((struct elf32_hppa_link_hash_entry *)(ent))
312 1.1 christos
313 1.1 christos #define hppa_stub_hash_entry(ent) \
314 1.1 christos ((struct elf32_hppa_stub_hash_entry *)(ent))
315 1.1 christos
316 1.1 christos #define hppa_stub_hash_lookup(table, string, create, copy) \
317 1.1 christos ((struct elf32_hppa_stub_hash_entry *) \
318 1.1 christos bfd_hash_lookup ((table), (string), (create), (copy)))
319 1.1 christos
320 1.1 christos #define hppa_elf_local_got_tls_type(abfd) \
321 1.1 christos ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
322 1.1 christos
323 1.1 christos #define hh_name(hh) \
324 1.1 christos (hh ? hh->eh.root.root.string : "<undef>")
325 1.1 christos
326 1.1 christos #define eh_name(eh) \
327 1.1 christos (eh ? eh->root.root.string : "<undef>")
328 1.1 christos
329 1.1 christos /* Assorted hash table functions. */
330 1.1 christos
331 1.1 christos /* Initialize an entry in the stub hash table. */
332 1.1 christos
333 1.1 christos static struct bfd_hash_entry *
334 1.1 christos stub_hash_newfunc (struct bfd_hash_entry *entry,
335 1.1 christos struct bfd_hash_table *table,
336 1.1 christos const char *string)
337 1.1 christos {
338 1.1 christos /* Allocate the structure if it has not already been allocated by a
339 1.1 christos subclass. */
340 1.1 christos if (entry == NULL)
341 1.1 christos {
342 1.1 christos entry = bfd_hash_allocate (table,
343 1.1 christos sizeof (struct elf32_hppa_stub_hash_entry));
344 1.1 christos if (entry == NULL)
345 1.1 christos return entry;
346 1.1 christos }
347 1.1 christos
348 1.1 christos /* Call the allocation method of the superclass. */
349 1.1 christos entry = bfd_hash_newfunc (entry, table, string);
350 1.1 christos if (entry != NULL)
351 1.1 christos {
352 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
353 1.1 christos
354 1.1 christos /* Initialize the local fields. */
355 1.1 christos hsh = hppa_stub_hash_entry (entry);
356 1.1 christos hsh->stub_sec = NULL;
357 1.1 christos hsh->stub_offset = 0;
358 1.1 christos hsh->target_value = 0;
359 1.1 christos hsh->target_section = NULL;
360 1.1 christos hsh->stub_type = hppa_stub_long_branch;
361 1.1 christos hsh->hh = NULL;
362 1.1 christos hsh->id_sec = NULL;
363 1.1 christos }
364 1.1 christos
365 1.1 christos return entry;
366 1.1 christos }
367 1.1 christos
368 1.1 christos /* Initialize an entry in the link hash table. */
369 1.1 christos
370 1.1 christos static struct bfd_hash_entry *
371 1.1 christos hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
372 1.1 christos struct bfd_hash_table *table,
373 1.1 christos const char *string)
374 1.1 christos {
375 1.1 christos /* Allocate the structure if it has not already been allocated by a
376 1.1 christos subclass. */
377 1.1 christos if (entry == NULL)
378 1.1 christos {
379 1.1 christos entry = bfd_hash_allocate (table,
380 1.1 christos sizeof (struct elf32_hppa_link_hash_entry));
381 1.1 christos if (entry == NULL)
382 1.1 christos return entry;
383 1.1 christos }
384 1.1 christos
385 1.1 christos /* Call the allocation method of the superclass. */
386 1.1 christos entry = _bfd_elf_link_hash_newfunc (entry, table, string);
387 1.1 christos if (entry != NULL)
388 1.1 christos {
389 1.1 christos struct elf32_hppa_link_hash_entry *hh;
390 1.1 christos
391 1.1 christos /* Initialize the local fields. */
392 1.1 christos hh = hppa_elf_hash_entry (entry);
393 1.1 christos hh->hsh_cache = NULL;
394 1.1 christos hh->dyn_relocs = NULL;
395 1.1 christos hh->plabel = 0;
396 1.1 christos hh->tls_type = GOT_UNKNOWN;
397 1.1 christos }
398 1.1 christos
399 1.1 christos return entry;
400 1.1 christos }
401 1.1 christos
402 1.3 christos /* Free the derived linker hash table. */
403 1.3 christos
404 1.3 christos static void
405 1.3 christos elf32_hppa_link_hash_table_free (bfd *obfd)
406 1.3 christos {
407 1.3 christos struct elf32_hppa_link_hash_table *htab
408 1.3 christos = (struct elf32_hppa_link_hash_table *) obfd->link.hash;
409 1.3 christos
410 1.3 christos bfd_hash_table_free (&htab->bstab);
411 1.3 christos _bfd_elf_link_hash_table_free (obfd);
412 1.3 christos }
413 1.3 christos
414 1.1 christos /* Create the derived linker hash table. The PA ELF port uses the derived
415 1.1 christos hash table to keep information specific to the PA ELF linker (without
416 1.1 christos using static variables). */
417 1.1 christos
418 1.1 christos static struct bfd_link_hash_table *
419 1.1 christos elf32_hppa_link_hash_table_create (bfd *abfd)
420 1.1 christos {
421 1.1 christos struct elf32_hppa_link_hash_table *htab;
422 1.1 christos bfd_size_type amt = sizeof (*htab);
423 1.1 christos
424 1.1 christos htab = bfd_zmalloc (amt);
425 1.1 christos if (htab == NULL)
426 1.1 christos return NULL;
427 1.1 christos
428 1.1 christos if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
429 1.1 christos sizeof (struct elf32_hppa_link_hash_entry),
430 1.1 christos HPPA32_ELF_DATA))
431 1.1 christos {
432 1.1 christos free (htab);
433 1.1 christos return NULL;
434 1.1 christos }
435 1.1 christos
436 1.1 christos /* Init the stub hash table too. */
437 1.1 christos if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
438 1.1 christos sizeof (struct elf32_hppa_stub_hash_entry)))
439 1.3 christos {
440 1.3 christos _bfd_elf_link_hash_table_free (abfd);
441 1.3 christos return NULL;
442 1.3 christos }
443 1.3 christos htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free;
444 1.1 christos
445 1.1 christos htab->text_segment_base = (bfd_vma) -1;
446 1.1 christos htab->data_segment_base = (bfd_vma) -1;
447 1.1 christos return &htab->etab.root;
448 1.1 christos }
449 1.1 christos
450 1.6 christos /* Initialize the linker stubs BFD so that we can use it for linker
451 1.6 christos created dynamic sections. */
452 1.6 christos
453 1.6 christos void
454 1.6 christos elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
455 1.6 christos {
456 1.6 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
457 1.6 christos
458 1.6 christos elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32;
459 1.6 christos htab->etab.dynobj = abfd;
460 1.6 christos }
461 1.6 christos
462 1.1 christos /* Build a name for an entry in the stub hash table. */
463 1.1 christos
464 1.1 christos static char *
465 1.1 christos hppa_stub_name (const asection *input_section,
466 1.1 christos const asection *sym_sec,
467 1.1 christos const struct elf32_hppa_link_hash_entry *hh,
468 1.1 christos const Elf_Internal_Rela *rela)
469 1.1 christos {
470 1.1 christos char *stub_name;
471 1.1 christos bfd_size_type len;
472 1.1 christos
473 1.1 christos if (hh)
474 1.1 christos {
475 1.1 christos len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
476 1.1 christos stub_name = bfd_malloc (len);
477 1.1 christos if (stub_name != NULL)
478 1.1 christos sprintf (stub_name, "%08x_%s+%x",
479 1.1 christos input_section->id & 0xffffffff,
480 1.1 christos hh_name (hh),
481 1.1 christos (int) rela->r_addend & 0xffffffff);
482 1.1 christos }
483 1.1 christos else
484 1.1 christos {
485 1.1 christos len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
486 1.1 christos stub_name = bfd_malloc (len);
487 1.1 christos if (stub_name != NULL)
488 1.1 christos sprintf (stub_name, "%08x_%x:%x+%x",
489 1.1 christos input_section->id & 0xffffffff,
490 1.1 christos sym_sec->id & 0xffffffff,
491 1.1 christos (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
492 1.1 christos (int) rela->r_addend & 0xffffffff);
493 1.1 christos }
494 1.1 christos return stub_name;
495 1.1 christos }
496 1.1 christos
497 1.1 christos /* Look up an entry in the stub hash. Stub entries are cached because
498 1.1 christos creating the stub name takes a bit of time. */
499 1.1 christos
500 1.1 christos static struct elf32_hppa_stub_hash_entry *
501 1.1 christos hppa_get_stub_entry (const asection *input_section,
502 1.1 christos const asection *sym_sec,
503 1.1 christos struct elf32_hppa_link_hash_entry *hh,
504 1.1 christos const Elf_Internal_Rela *rela,
505 1.1 christos struct elf32_hppa_link_hash_table *htab)
506 1.1 christos {
507 1.1 christos struct elf32_hppa_stub_hash_entry *hsh_entry;
508 1.1 christos const asection *id_sec;
509 1.1 christos
510 1.1 christos /* If this input section is part of a group of sections sharing one
511 1.1 christos stub section, then use the id of the first section in the group.
512 1.1 christos Stub names need to include a section id, as there may well be
513 1.1 christos more than one stub used to reach say, printf, and we need to
514 1.1 christos distinguish between them. */
515 1.1 christos id_sec = htab->stub_group[input_section->id].link_sec;
516 1.1 christos
517 1.1 christos if (hh != NULL && hh->hsh_cache != NULL
518 1.1 christos && hh->hsh_cache->hh == hh
519 1.1 christos && hh->hsh_cache->id_sec == id_sec)
520 1.1 christos {
521 1.1 christos hsh_entry = hh->hsh_cache;
522 1.1 christos }
523 1.1 christos else
524 1.1 christos {
525 1.1 christos char *stub_name;
526 1.1 christos
527 1.1 christos stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
528 1.1 christos if (stub_name == NULL)
529 1.1 christos return NULL;
530 1.1 christos
531 1.1 christos hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
532 1.1 christos stub_name, FALSE, FALSE);
533 1.1 christos if (hh != NULL)
534 1.1 christos hh->hsh_cache = hsh_entry;
535 1.1 christos
536 1.1 christos free (stub_name);
537 1.1 christos }
538 1.1 christos
539 1.1 christos return hsh_entry;
540 1.1 christos }
541 1.1 christos
542 1.1 christos /* Add a new stub entry to the stub hash. Not all fields of the new
543 1.1 christos stub entry are initialised. */
544 1.1 christos
545 1.1 christos static struct elf32_hppa_stub_hash_entry *
546 1.1 christos hppa_add_stub (const char *stub_name,
547 1.1 christos asection *section,
548 1.1 christos struct elf32_hppa_link_hash_table *htab)
549 1.1 christos {
550 1.1 christos asection *link_sec;
551 1.1 christos asection *stub_sec;
552 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
553 1.1 christos
554 1.1 christos link_sec = htab->stub_group[section->id].link_sec;
555 1.1 christos stub_sec = htab->stub_group[section->id].stub_sec;
556 1.1 christos if (stub_sec == NULL)
557 1.1 christos {
558 1.1 christos stub_sec = htab->stub_group[link_sec->id].stub_sec;
559 1.1 christos if (stub_sec == NULL)
560 1.1 christos {
561 1.1 christos size_t namelen;
562 1.1 christos bfd_size_type len;
563 1.1 christos char *s_name;
564 1.1 christos
565 1.1 christos namelen = strlen (link_sec->name);
566 1.1 christos len = namelen + sizeof (STUB_SUFFIX);
567 1.1 christos s_name = bfd_alloc (htab->stub_bfd, len);
568 1.1 christos if (s_name == NULL)
569 1.1 christos return NULL;
570 1.1 christos
571 1.1 christos memcpy (s_name, link_sec->name, namelen);
572 1.1 christos memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
573 1.1 christos stub_sec = (*htab->add_stub_section) (s_name, link_sec);
574 1.1 christos if (stub_sec == NULL)
575 1.1 christos return NULL;
576 1.1 christos htab->stub_group[link_sec->id].stub_sec = stub_sec;
577 1.1 christos }
578 1.1 christos htab->stub_group[section->id].stub_sec = stub_sec;
579 1.1 christos }
580 1.1 christos
581 1.1 christos /* Enter this entry into the linker stub hash table. */
582 1.1 christos hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
583 1.1 christos TRUE, FALSE);
584 1.1 christos if (hsh == NULL)
585 1.1 christos {
586 1.7 christos /* xgettext:c-format */
587 1.7 christos _bfd_error_handler (_("%B: cannot create stub entry %s"),
588 1.7 christos section->owner, stub_name);
589 1.1 christos return NULL;
590 1.1 christos }
591 1.1 christos
592 1.1 christos hsh->stub_sec = stub_sec;
593 1.1 christos hsh->stub_offset = 0;
594 1.1 christos hsh->id_sec = link_sec;
595 1.1 christos return hsh;
596 1.1 christos }
597 1.1 christos
598 1.1 christos /* Determine the type of stub needed, if any, for a call. */
599 1.1 christos
600 1.1 christos static enum elf32_hppa_stub_type
601 1.1 christos hppa_type_of_stub (asection *input_sec,
602 1.1 christos const Elf_Internal_Rela *rela,
603 1.1 christos struct elf32_hppa_link_hash_entry *hh,
604 1.1 christos bfd_vma destination,
605 1.1 christos struct bfd_link_info *info)
606 1.1 christos {
607 1.1 christos bfd_vma location;
608 1.1 christos bfd_vma branch_offset;
609 1.1 christos bfd_vma max_branch_offset;
610 1.1 christos unsigned int r_type;
611 1.1 christos
612 1.1 christos if (hh != NULL
613 1.1 christos && hh->eh.plt.offset != (bfd_vma) -1
614 1.1 christos && hh->eh.dynindx != -1
615 1.1 christos && !hh->plabel
616 1.6 christos && (bfd_link_pic (info)
617 1.1 christos || !hh->eh.def_regular
618 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak))
619 1.1 christos {
620 1.1 christos /* We need an import stub. Decide between hppa_stub_import
621 1.1 christos and hppa_stub_import_shared later. */
622 1.1 christos return hppa_stub_import;
623 1.1 christos }
624 1.1 christos
625 1.1 christos /* Determine where the call point is. */
626 1.1 christos location = (input_sec->output_offset
627 1.1 christos + input_sec->output_section->vma
628 1.1 christos + rela->r_offset);
629 1.1 christos
630 1.1 christos branch_offset = destination - location - 8;
631 1.1 christos r_type = ELF32_R_TYPE (rela->r_info);
632 1.1 christos
633 1.1 christos /* Determine if a long branch stub is needed. parisc branch offsets
634 1.1 christos are relative to the second instruction past the branch, ie. +8
635 1.1 christos bytes on from the branch instruction location. The offset is
636 1.1 christos signed and counts in units of 4 bytes. */
637 1.1 christos if (r_type == (unsigned int) R_PARISC_PCREL17F)
638 1.1 christos max_branch_offset = (1 << (17 - 1)) << 2;
639 1.1 christos
640 1.1 christos else if (r_type == (unsigned int) R_PARISC_PCREL12F)
641 1.1 christos max_branch_offset = (1 << (12 - 1)) << 2;
642 1.1 christos
643 1.1 christos else /* R_PARISC_PCREL22F. */
644 1.1 christos max_branch_offset = (1 << (22 - 1)) << 2;
645 1.1 christos
646 1.1 christos if (branch_offset + max_branch_offset >= 2*max_branch_offset)
647 1.1 christos return hppa_stub_long_branch;
648 1.1 christos
649 1.1 christos return hppa_stub_none;
650 1.1 christos }
651 1.1 christos
652 1.1 christos /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
653 1.1 christos IN_ARG contains the link info pointer. */
654 1.1 christos
655 1.1 christos #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
656 1.1 christos #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
657 1.1 christos
658 1.1 christos #define BL_R1 0xe8200000 /* b,l .+8,%r1 */
659 1.1 christos #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
660 1.1 christos #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
661 1.1 christos
662 1.1 christos #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
663 1.1 christos #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
664 1.1 christos #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
665 1.1 christos #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
666 1.1 christos
667 1.1 christos #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
668 1.1 christos #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
669 1.1 christos
670 1.1 christos #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
671 1.1 christos #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
672 1.1 christos #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
673 1.1 christos #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
674 1.1 christos
675 1.1 christos #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
676 1.1 christos #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
677 1.1 christos #define NOP 0x08000240 /* nop */
678 1.1 christos #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
679 1.1 christos #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
680 1.1 christos #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
681 1.1 christos
682 1.1 christos #ifndef R19_STUBS
683 1.1 christos #define R19_STUBS 1
684 1.1 christos #endif
685 1.1 christos
686 1.1 christos #if R19_STUBS
687 1.1 christos #define LDW_R1_DLT LDW_R1_R19
688 1.1 christos #else
689 1.1 christos #define LDW_R1_DLT LDW_R1_DP
690 1.1 christos #endif
691 1.1 christos
692 1.1 christos static bfd_boolean
693 1.1 christos hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
694 1.1 christos {
695 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
696 1.1 christos struct bfd_link_info *info;
697 1.1 christos struct elf32_hppa_link_hash_table *htab;
698 1.1 christos asection *stub_sec;
699 1.1 christos bfd *stub_bfd;
700 1.1 christos bfd_byte *loc;
701 1.1 christos bfd_vma sym_value;
702 1.1 christos bfd_vma insn;
703 1.1 christos bfd_vma off;
704 1.1 christos int val;
705 1.1 christos int size;
706 1.1 christos
707 1.1 christos /* Massage our args to the form they really have. */
708 1.1 christos hsh = hppa_stub_hash_entry (bh);
709 1.1 christos info = (struct bfd_link_info *)in_arg;
710 1.1 christos
711 1.1 christos htab = hppa_link_hash_table (info);
712 1.1 christos if (htab == NULL)
713 1.1 christos return FALSE;
714 1.1 christos
715 1.1 christos stub_sec = hsh->stub_sec;
716 1.1 christos
717 1.1 christos /* Make a note of the offset within the stubs for this entry. */
718 1.1 christos hsh->stub_offset = stub_sec->size;
719 1.1 christos loc = stub_sec->contents + hsh->stub_offset;
720 1.1 christos
721 1.1 christos stub_bfd = stub_sec->owner;
722 1.1 christos
723 1.1 christos switch (hsh->stub_type)
724 1.1 christos {
725 1.1 christos case hppa_stub_long_branch:
726 1.1 christos /* Create the long branch. A long branch is formed with "ldil"
727 1.1 christos loading the upper bits of the target address into a register,
728 1.1 christos then branching with "be" which adds in the lower bits.
729 1.1 christos The "be" has its delay slot nullified. */
730 1.1 christos sym_value = (hsh->target_value
731 1.1 christos + hsh->target_section->output_offset
732 1.1 christos + hsh->target_section->output_section->vma);
733 1.1 christos
734 1.1 christos val = hppa_field_adjust (sym_value, 0, e_lrsel);
735 1.1 christos insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
736 1.1 christos bfd_put_32 (stub_bfd, insn, loc);
737 1.1 christos
738 1.1 christos val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
739 1.1 christos insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
740 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 4);
741 1.1 christos
742 1.1 christos size = 8;
743 1.1 christos break;
744 1.1 christos
745 1.1 christos case hppa_stub_long_branch_shared:
746 1.1 christos /* Branches are relative. This is where we are going to. */
747 1.1 christos sym_value = (hsh->target_value
748 1.1 christos + hsh->target_section->output_offset
749 1.1 christos + hsh->target_section->output_section->vma);
750 1.1 christos
751 1.1 christos /* And this is where we are coming from, more or less. */
752 1.1 christos sym_value -= (hsh->stub_offset
753 1.1 christos + stub_sec->output_offset
754 1.1 christos + stub_sec->output_section->vma);
755 1.1 christos
756 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
757 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
758 1.1 christos insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
759 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 4);
760 1.1 christos
761 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
762 1.1 christos insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
763 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 8);
764 1.1 christos size = 12;
765 1.1 christos break;
766 1.1 christos
767 1.1 christos case hppa_stub_import:
768 1.1 christos case hppa_stub_import_shared:
769 1.1 christos off = hsh->hh->eh.plt.offset;
770 1.1 christos if (off >= (bfd_vma) -2)
771 1.1 christos abort ();
772 1.1 christos
773 1.1 christos off &= ~ (bfd_vma) 1;
774 1.1 christos sym_value = (off
775 1.7 christos + htab->etab.splt->output_offset
776 1.7 christos + htab->etab.splt->output_section->vma
777 1.7 christos - elf_gp (htab->etab.splt->output_section->owner));
778 1.1 christos
779 1.1 christos insn = ADDIL_DP;
780 1.1 christos #if R19_STUBS
781 1.1 christos if (hsh->stub_type == hppa_stub_import_shared)
782 1.1 christos insn = ADDIL_R19;
783 1.1 christos #endif
784 1.1 christos val = hppa_field_adjust (sym_value, 0, e_lrsel),
785 1.1 christos insn = hppa_rebuild_insn ((int) insn, val, 21);
786 1.1 christos bfd_put_32 (stub_bfd, insn, loc);
787 1.1 christos
788 1.1 christos /* It is critical to use lrsel/rrsel here because we are using
789 1.1 christos two different offsets (+0 and +4) from sym_value. If we use
790 1.1 christos lsel/rsel then with unfortunate sym_values we will round
791 1.1 christos sym_value+4 up to the next 2k block leading to a mis-match
792 1.1 christos between the lsel and rsel value. */
793 1.1 christos val = hppa_field_adjust (sym_value, 0, e_rrsel);
794 1.1 christos insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
795 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 4);
796 1.1 christos
797 1.1 christos if (htab->multi_subspace)
798 1.1 christos {
799 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
800 1.1 christos insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
801 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 8);
802 1.1 christos
803 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
804 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
805 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
806 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
807 1.1 christos
808 1.1 christos size = 28;
809 1.1 christos }
810 1.1 christos else
811 1.1 christos {
812 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
813 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
814 1.1 christos insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
815 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 12);
816 1.1 christos
817 1.1 christos size = 16;
818 1.1 christos }
819 1.1 christos
820 1.1 christos break;
821 1.1 christos
822 1.1 christos case hppa_stub_export:
823 1.1 christos /* Branches are relative. This is where we are going to. */
824 1.1 christos sym_value = (hsh->target_value
825 1.1 christos + hsh->target_section->output_offset
826 1.1 christos + hsh->target_section->output_section->vma);
827 1.1 christos
828 1.1 christos /* And this is where we are coming from. */
829 1.1 christos sym_value -= (hsh->stub_offset
830 1.1 christos + stub_sec->output_offset
831 1.1 christos + stub_sec->output_section->vma);
832 1.1 christos
833 1.1 christos if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
834 1.1 christos && (!htab->has_22bit_branch
835 1.1 christos || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
836 1.1 christos {
837 1.7 christos _bfd_error_handler
838 1.7 christos /* xgettext:c-format */
839 1.1 christos (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
840 1.1 christos hsh->target_section->owner,
841 1.1 christos stub_sec,
842 1.1 christos (long) hsh->stub_offset,
843 1.1 christos hsh->bh_root.string);
844 1.1 christos bfd_set_error (bfd_error_bad_value);
845 1.1 christos return FALSE;
846 1.1 christos }
847 1.1 christos
848 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
849 1.1 christos if (!htab->has_22bit_branch)
850 1.1 christos insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
851 1.1 christos else
852 1.1 christos insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
853 1.1 christos bfd_put_32 (stub_bfd, insn, loc);
854 1.1 christos
855 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
856 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
857 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
858 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
859 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
860 1.1 christos
861 1.1 christos /* Point the function symbol at the stub. */
862 1.1 christos hsh->hh->eh.root.u.def.section = stub_sec;
863 1.1 christos hsh->hh->eh.root.u.def.value = stub_sec->size;
864 1.1 christos
865 1.1 christos size = 24;
866 1.1 christos break;
867 1.1 christos
868 1.1 christos default:
869 1.1 christos BFD_FAIL ();
870 1.1 christos return FALSE;
871 1.1 christos }
872 1.1 christos
873 1.1 christos stub_sec->size += size;
874 1.1 christos return TRUE;
875 1.1 christos }
876 1.1 christos
877 1.1 christos #undef LDIL_R1
878 1.1 christos #undef BE_SR4_R1
879 1.1 christos #undef BL_R1
880 1.1 christos #undef ADDIL_R1
881 1.1 christos #undef DEPI_R1
882 1.1 christos #undef LDW_R1_R21
883 1.1 christos #undef LDW_R1_DLT
884 1.1 christos #undef LDW_R1_R19
885 1.1 christos #undef ADDIL_R19
886 1.1 christos #undef LDW_R1_DP
887 1.1 christos #undef LDSID_R21_R1
888 1.1 christos #undef MTSP_R1
889 1.1 christos #undef BE_SR0_R21
890 1.1 christos #undef STW_RP
891 1.1 christos #undef BV_R0_R21
892 1.1 christos #undef BL_RP
893 1.1 christos #undef NOP
894 1.1 christos #undef LDW_RP
895 1.1 christos #undef LDSID_RP_R1
896 1.1 christos #undef BE_SR0_RP
897 1.1 christos
898 1.1 christos /* As above, but don't actually build the stub. Just bump offset so
899 1.1 christos we know stub section sizes. */
900 1.1 christos
901 1.1 christos static bfd_boolean
902 1.1 christos hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
903 1.1 christos {
904 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
905 1.1 christos struct elf32_hppa_link_hash_table *htab;
906 1.1 christos int size;
907 1.1 christos
908 1.1 christos /* Massage our args to the form they really have. */
909 1.1 christos hsh = hppa_stub_hash_entry (bh);
910 1.1 christos htab = in_arg;
911 1.1 christos
912 1.1 christos if (hsh->stub_type == hppa_stub_long_branch)
913 1.1 christos size = 8;
914 1.1 christos else if (hsh->stub_type == hppa_stub_long_branch_shared)
915 1.1 christos size = 12;
916 1.1 christos else if (hsh->stub_type == hppa_stub_export)
917 1.1 christos size = 24;
918 1.1 christos else /* hppa_stub_import or hppa_stub_import_shared. */
919 1.1 christos {
920 1.1 christos if (htab->multi_subspace)
921 1.1 christos size = 28;
922 1.1 christos else
923 1.1 christos size = 16;
924 1.1 christos }
925 1.1 christos
926 1.1 christos hsh->stub_sec->size += size;
927 1.1 christos return TRUE;
928 1.1 christos }
929 1.1 christos
930 1.1 christos /* Return nonzero if ABFD represents an HPPA ELF32 file.
931 1.1 christos Additionally we set the default architecture and machine. */
932 1.1 christos
933 1.1 christos static bfd_boolean
934 1.1 christos elf32_hppa_object_p (bfd *abfd)
935 1.1 christos {
936 1.1 christos Elf_Internal_Ehdr * i_ehdrp;
937 1.1 christos unsigned int flags;
938 1.1 christos
939 1.1 christos i_ehdrp = elf_elfheader (abfd);
940 1.1 christos if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
941 1.1 christos {
942 1.1 christos /* GCC on hppa-linux produces binaries with OSABI=GNU,
943 1.1 christos but the kernel produces corefiles with OSABI=SysV. */
944 1.1 christos if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
945 1.1 christos i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
946 1.1 christos return FALSE;
947 1.1 christos }
948 1.1 christos else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
949 1.1 christos {
950 1.1 christos /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
951 1.1 christos but the kernel produces corefiles with OSABI=SysV. */
952 1.1 christos if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
953 1.1 christos i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
954 1.1 christos return FALSE;
955 1.1 christos }
956 1.1 christos else
957 1.1 christos {
958 1.1 christos if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
959 1.1 christos return FALSE;
960 1.1 christos }
961 1.1 christos
962 1.1 christos flags = i_ehdrp->e_flags;
963 1.1 christos switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
964 1.1 christos {
965 1.1 christos case EFA_PARISC_1_0:
966 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
967 1.1 christos case EFA_PARISC_1_1:
968 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
969 1.1 christos case EFA_PARISC_2_0:
970 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
971 1.1 christos case EFA_PARISC_2_0 | EF_PARISC_WIDE:
972 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
973 1.1 christos }
974 1.1 christos return TRUE;
975 1.1 christos }
976 1.1 christos
977 1.1 christos /* Create the .plt and .got sections, and set up our hash table
978 1.1 christos short-cuts to various dynamic sections. */
979 1.1 christos
980 1.1 christos static bfd_boolean
981 1.1 christos elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
982 1.1 christos {
983 1.1 christos struct elf32_hppa_link_hash_table *htab;
984 1.1 christos struct elf_link_hash_entry *eh;
985 1.1 christos
986 1.1 christos /* Don't try to create the .plt and .got twice. */
987 1.1 christos htab = hppa_link_hash_table (info);
988 1.1 christos if (htab == NULL)
989 1.1 christos return FALSE;
990 1.7 christos if (htab->etab.splt != NULL)
991 1.1 christos return TRUE;
992 1.1 christos
993 1.1 christos /* Call the generic code to do most of the work. */
994 1.1 christos if (! _bfd_elf_create_dynamic_sections (abfd, info))
995 1.1 christos return FALSE;
996 1.1 christos
997 1.1 christos /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
998 1.1 christos application, because __canonicalize_funcptr_for_compare needs it. */
999 1.1 christos eh = elf_hash_table (info)->hgot;
1000 1.1 christos eh->forced_local = 0;
1001 1.1 christos eh->other = STV_DEFAULT;
1002 1.1 christos return bfd_elf_link_record_dynamic_symbol (info, eh);
1003 1.1 christos }
1004 1.1 christos
1005 1.1 christos /* Copy the extra info we tack onto an elf_link_hash_entry. */
1006 1.1 christos
1007 1.1 christos static void
1008 1.1 christos elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
1009 1.1 christos struct elf_link_hash_entry *eh_dir,
1010 1.1 christos struct elf_link_hash_entry *eh_ind)
1011 1.1 christos {
1012 1.1 christos struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
1013 1.1 christos
1014 1.1 christos hh_dir = hppa_elf_hash_entry (eh_dir);
1015 1.1 christos hh_ind = hppa_elf_hash_entry (eh_ind);
1016 1.1 christos
1017 1.1 christos if (hh_ind->dyn_relocs != NULL)
1018 1.1 christos {
1019 1.1 christos if (hh_dir->dyn_relocs != NULL)
1020 1.1 christos {
1021 1.1 christos struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1022 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
1023 1.1 christos
1024 1.1 christos /* Add reloc counts against the indirect sym to the direct sym
1025 1.1 christos list. Merge any entries against the same section. */
1026 1.1 christos for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
1027 1.1 christos {
1028 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_q;
1029 1.1 christos
1030 1.1 christos for (hdh_q = hh_dir->dyn_relocs;
1031 1.1 christos hdh_q != NULL;
1032 1.1 christos hdh_q = hdh_q->hdh_next)
1033 1.1 christos if (hdh_q->sec == hdh_p->sec)
1034 1.1 christos {
1035 1.1 christos #if RELATIVE_DYNRELOCS
1036 1.1 christos hdh_q->relative_count += hdh_p->relative_count;
1037 1.1 christos #endif
1038 1.1 christos hdh_q->count += hdh_p->count;
1039 1.1 christos *hdh_pp = hdh_p->hdh_next;
1040 1.1 christos break;
1041 1.1 christos }
1042 1.1 christos if (hdh_q == NULL)
1043 1.1 christos hdh_pp = &hdh_p->hdh_next;
1044 1.1 christos }
1045 1.1 christos *hdh_pp = hh_dir->dyn_relocs;
1046 1.1 christos }
1047 1.1 christos
1048 1.1 christos hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1049 1.1 christos hh_ind->dyn_relocs = NULL;
1050 1.1 christos }
1051 1.1 christos
1052 1.1 christos if (ELIMINATE_COPY_RELOCS
1053 1.1 christos && eh_ind->root.type != bfd_link_hash_indirect
1054 1.1 christos && eh_dir->dynamic_adjusted)
1055 1.1 christos {
1056 1.1 christos /* If called to transfer flags for a weakdef during processing
1057 1.1 christos of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1058 1.1 christos We clear it ourselves for ELIMINATE_COPY_RELOCS. */
1059 1.7 christos if (eh_dir->versioned != versioned_hidden)
1060 1.7 christos eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
1061 1.1 christos eh_dir->ref_regular |= eh_ind->ref_regular;
1062 1.1 christos eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1063 1.1 christos eh_dir->needs_plt |= eh_ind->needs_plt;
1064 1.1 christos }
1065 1.1 christos else
1066 1.1 christos {
1067 1.7 christos if (eh_ind->root.type == bfd_link_hash_indirect)
1068 1.7 christos {
1069 1.7 christos hh_dir->plabel |= hh_ind->plabel;
1070 1.7 christos hh_dir->tls_type |= hh_ind->tls_type;
1071 1.7 christos hh_ind->tls_type = GOT_UNKNOWN;
1072 1.7 christos }
1073 1.1 christos
1074 1.1 christos _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1075 1.1 christos }
1076 1.1 christos }
1077 1.1 christos
1078 1.1 christos static int
1079 1.1 christos elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1080 1.1 christos int r_type, int is_local ATTRIBUTE_UNUSED)
1081 1.1 christos {
1082 1.1 christos /* For now we don't support linker optimizations. */
1083 1.1 christos return r_type;
1084 1.1 christos }
1085 1.1 christos
1086 1.1 christos /* Return a pointer to the local GOT, PLT and TLS reference counts
1087 1.1 christos for ABFD. Returns NULL if the storage allocation fails. */
1088 1.1 christos
1089 1.1 christos static bfd_signed_vma *
1090 1.1 christos hppa32_elf_local_refcounts (bfd *abfd)
1091 1.1 christos {
1092 1.1 christos Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1093 1.1 christos bfd_signed_vma *local_refcounts;
1094 1.1 christos
1095 1.1 christos local_refcounts = elf_local_got_refcounts (abfd);
1096 1.1 christos if (local_refcounts == NULL)
1097 1.1 christos {
1098 1.1 christos bfd_size_type size;
1099 1.1 christos
1100 1.1 christos /* Allocate space for local GOT and PLT reference
1101 1.1 christos counts. Done this way to save polluting elf_obj_tdata
1102 1.1 christos with another target specific pointer. */
1103 1.1 christos size = symtab_hdr->sh_info;
1104 1.1 christos size *= 2 * sizeof (bfd_signed_vma);
1105 1.1 christos /* Add in space to store the local GOT TLS types. */
1106 1.1 christos size += symtab_hdr->sh_info;
1107 1.1 christos local_refcounts = bfd_zalloc (abfd, size);
1108 1.1 christos if (local_refcounts == NULL)
1109 1.1 christos return NULL;
1110 1.1 christos elf_local_got_refcounts (abfd) = local_refcounts;
1111 1.1 christos memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1112 1.1 christos symtab_hdr->sh_info);
1113 1.1 christos }
1114 1.1 christos return local_refcounts;
1115 1.1 christos }
1116 1.1 christos
1117 1.1 christos
1118 1.1 christos /* Look through the relocs for a section during the first phase, and
1119 1.1 christos calculate needed space in the global offset table, procedure linkage
1120 1.1 christos table, and dynamic reloc sections. At this point we haven't
1121 1.1 christos necessarily read all the input files. */
1122 1.1 christos
1123 1.1 christos static bfd_boolean
1124 1.1 christos elf32_hppa_check_relocs (bfd *abfd,
1125 1.1 christos struct bfd_link_info *info,
1126 1.1 christos asection *sec,
1127 1.1 christos const Elf_Internal_Rela *relocs)
1128 1.1 christos {
1129 1.1 christos Elf_Internal_Shdr *symtab_hdr;
1130 1.1 christos struct elf_link_hash_entry **eh_syms;
1131 1.1 christos const Elf_Internal_Rela *rela;
1132 1.1 christos const Elf_Internal_Rela *rela_end;
1133 1.1 christos struct elf32_hppa_link_hash_table *htab;
1134 1.1 christos asection *sreloc;
1135 1.1 christos int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
1136 1.1 christos
1137 1.6 christos if (bfd_link_relocatable (info))
1138 1.1 christos return TRUE;
1139 1.1 christos
1140 1.1 christos htab = hppa_link_hash_table (info);
1141 1.1 christos if (htab == NULL)
1142 1.1 christos return FALSE;
1143 1.1 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1144 1.1 christos eh_syms = elf_sym_hashes (abfd);
1145 1.1 christos sreloc = NULL;
1146 1.1 christos
1147 1.1 christos rela_end = relocs + sec->reloc_count;
1148 1.1 christos for (rela = relocs; rela < rela_end; rela++)
1149 1.1 christos {
1150 1.1 christos enum {
1151 1.1 christos NEED_GOT = 1,
1152 1.1 christos NEED_PLT = 2,
1153 1.1 christos NEED_DYNREL = 4,
1154 1.1 christos PLT_PLABEL = 8
1155 1.1 christos };
1156 1.1 christos
1157 1.1 christos unsigned int r_symndx, r_type;
1158 1.1 christos struct elf32_hppa_link_hash_entry *hh;
1159 1.1 christos int need_entry = 0;
1160 1.1 christos
1161 1.1 christos r_symndx = ELF32_R_SYM (rela->r_info);
1162 1.1 christos
1163 1.1 christos if (r_symndx < symtab_hdr->sh_info)
1164 1.1 christos hh = NULL;
1165 1.1 christos else
1166 1.1 christos {
1167 1.1 christos hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
1168 1.1 christos while (hh->eh.root.type == bfd_link_hash_indirect
1169 1.1 christos || hh->eh.root.type == bfd_link_hash_warning)
1170 1.1 christos hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
1171 1.1 christos
1172 1.1 christos /* PR15323, ref flags aren't set for references in the same
1173 1.1 christos object. */
1174 1.1 christos hh->eh.root.non_ir_ref = 1;
1175 1.1 christos }
1176 1.1 christos
1177 1.1 christos r_type = ELF32_R_TYPE (rela->r_info);
1178 1.1 christos r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
1179 1.1 christos
1180 1.1 christos switch (r_type)
1181 1.1 christos {
1182 1.1 christos case R_PARISC_DLTIND14F:
1183 1.1 christos case R_PARISC_DLTIND14R:
1184 1.1 christos case R_PARISC_DLTIND21L:
1185 1.1 christos /* This symbol requires a global offset table entry. */
1186 1.1 christos need_entry = NEED_GOT;
1187 1.1 christos break;
1188 1.1 christos
1189 1.1 christos case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1190 1.1 christos case R_PARISC_PLABEL21L:
1191 1.1 christos case R_PARISC_PLABEL32:
1192 1.1 christos /* If the addend is non-zero, we break badly. */
1193 1.1 christos if (rela->r_addend != 0)
1194 1.1 christos abort ();
1195 1.1 christos
1196 1.1 christos /* If we are creating a shared library, then we need to
1197 1.1 christos create a PLT entry for all PLABELs, because PLABELs with
1198 1.1 christos local symbols may be passed via a pointer to another
1199 1.1 christos object. Additionally, output a dynamic relocation
1200 1.1 christos pointing to the PLT entry.
1201 1.1 christos
1202 1.1 christos For executables, the original 32-bit ABI allowed two
1203 1.1 christos different styles of PLABELs (function pointers): For
1204 1.1 christos global functions, the PLABEL word points into the .plt
1205 1.1 christos two bytes past a (function address, gp) pair, and for
1206 1.1 christos local functions the PLABEL points directly at the
1207 1.1 christos function. The magic +2 for the first type allows us to
1208 1.1 christos differentiate between the two. As you can imagine, this
1209 1.1 christos is a real pain when it comes to generating code to call
1210 1.1 christos functions indirectly or to compare function pointers.
1211 1.1 christos We avoid the mess by always pointing a PLABEL into the
1212 1.1 christos .plt, even for local functions. */
1213 1.1 christos need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
1214 1.1 christos break;
1215 1.1 christos
1216 1.1 christos case R_PARISC_PCREL12F:
1217 1.1 christos htab->has_12bit_branch = 1;
1218 1.1 christos goto branch_common;
1219 1.1 christos
1220 1.1 christos case R_PARISC_PCREL17C:
1221 1.1 christos case R_PARISC_PCREL17F:
1222 1.1 christos htab->has_17bit_branch = 1;
1223 1.1 christos goto branch_common;
1224 1.1 christos
1225 1.1 christos case R_PARISC_PCREL22F:
1226 1.1 christos htab->has_22bit_branch = 1;
1227 1.1 christos branch_common:
1228 1.1 christos /* Function calls might need to go through the .plt, and
1229 1.1 christos might require long branch stubs. */
1230 1.1 christos if (hh == NULL)
1231 1.1 christos {
1232 1.1 christos /* We know local syms won't need a .plt entry, and if
1233 1.1 christos they need a long branch stub we can't guarantee that
1234 1.1 christos we can reach the stub. So just flag an error later
1235 1.1 christos if we're doing a shared link and find we need a long
1236 1.1 christos branch stub. */
1237 1.1 christos continue;
1238 1.1 christos }
1239 1.1 christos else
1240 1.1 christos {
1241 1.1 christos /* Global symbols will need a .plt entry if they remain
1242 1.1 christos global, and in most cases won't need a long branch
1243 1.1 christos stub. Unfortunately, we have to cater for the case
1244 1.1 christos where a symbol is forced local by versioning, or due
1245 1.1 christos to symbolic linking, and we lose the .plt entry. */
1246 1.1 christos need_entry = NEED_PLT;
1247 1.1 christos if (hh->eh.type == STT_PARISC_MILLI)
1248 1.1 christos need_entry = 0;
1249 1.1 christos }
1250 1.1 christos break;
1251 1.1 christos
1252 1.1 christos case R_PARISC_SEGBASE: /* Used to set segment base. */
1253 1.1 christos case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
1254 1.1 christos case R_PARISC_PCREL14F: /* PC relative load/store. */
1255 1.1 christos case R_PARISC_PCREL14R:
1256 1.1 christos case R_PARISC_PCREL17R: /* External branches. */
1257 1.1 christos case R_PARISC_PCREL21L: /* As above, and for load/store too. */
1258 1.1 christos case R_PARISC_PCREL32:
1259 1.1 christos /* We don't need to propagate the relocation if linking a
1260 1.1 christos shared object since these are section relative. */
1261 1.1 christos continue;
1262 1.1 christos
1263 1.1 christos case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1264 1.1 christos case R_PARISC_DPREL14R:
1265 1.1 christos case R_PARISC_DPREL21L:
1266 1.6 christos if (bfd_link_pic (info))
1267 1.1 christos {
1268 1.7 christos _bfd_error_handler
1269 1.7 christos /* xgettext:c-format */
1270 1.1 christos (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1271 1.1 christos abfd,
1272 1.1 christos elf_hppa_howto_table[r_type].name);
1273 1.1 christos bfd_set_error (bfd_error_bad_value);
1274 1.1 christos return FALSE;
1275 1.1 christos }
1276 1.1 christos /* Fall through. */
1277 1.1 christos
1278 1.1 christos case R_PARISC_DIR17F: /* Used for external branches. */
1279 1.1 christos case R_PARISC_DIR17R:
1280 1.1 christos case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1281 1.1 christos case R_PARISC_DIR14R:
1282 1.1 christos case R_PARISC_DIR21L: /* As above, and for ext branches too. */
1283 1.1 christos case R_PARISC_DIR32: /* .word relocs. */
1284 1.1 christos /* We may want to output a dynamic relocation later. */
1285 1.1 christos need_entry = NEED_DYNREL;
1286 1.1 christos break;
1287 1.1 christos
1288 1.1 christos /* This relocation describes the C++ object vtable hierarchy.
1289 1.1 christos Reconstruct it for later use during GC. */
1290 1.1 christos case R_PARISC_GNU_VTINHERIT:
1291 1.1 christos if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
1292 1.1 christos return FALSE;
1293 1.1 christos continue;
1294 1.1 christos
1295 1.1 christos /* This relocation describes which C++ vtable entries are actually
1296 1.1 christos used. Record for later use during GC. */
1297 1.1 christos case R_PARISC_GNU_VTENTRY:
1298 1.1 christos BFD_ASSERT (hh != NULL);
1299 1.1 christos if (hh != NULL
1300 1.1 christos && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
1301 1.1 christos return FALSE;
1302 1.1 christos continue;
1303 1.1 christos
1304 1.1 christos case R_PARISC_TLS_GD21L:
1305 1.1 christos case R_PARISC_TLS_GD14R:
1306 1.1 christos case R_PARISC_TLS_LDM21L:
1307 1.1 christos case R_PARISC_TLS_LDM14R:
1308 1.1 christos need_entry = NEED_GOT;
1309 1.1 christos break;
1310 1.1 christos
1311 1.1 christos case R_PARISC_TLS_IE21L:
1312 1.1 christos case R_PARISC_TLS_IE14R:
1313 1.6 christos if (bfd_link_pic (info))
1314 1.1 christos info->flags |= DF_STATIC_TLS;
1315 1.1 christos need_entry = NEED_GOT;
1316 1.1 christos break;
1317 1.1 christos
1318 1.1 christos default:
1319 1.1 christos continue;
1320 1.1 christos }
1321 1.1 christos
1322 1.1 christos /* Now carry out our orders. */
1323 1.1 christos if (need_entry & NEED_GOT)
1324 1.1 christos {
1325 1.1 christos switch (r_type)
1326 1.1 christos {
1327 1.1 christos default:
1328 1.1 christos tls_type = GOT_NORMAL;
1329 1.1 christos break;
1330 1.1 christos case R_PARISC_TLS_GD21L:
1331 1.1 christos case R_PARISC_TLS_GD14R:
1332 1.1 christos tls_type |= GOT_TLS_GD;
1333 1.1 christos break;
1334 1.1 christos case R_PARISC_TLS_LDM21L:
1335 1.1 christos case R_PARISC_TLS_LDM14R:
1336 1.1 christos tls_type |= GOT_TLS_LDM;
1337 1.1 christos break;
1338 1.1 christos case R_PARISC_TLS_IE21L:
1339 1.1 christos case R_PARISC_TLS_IE14R:
1340 1.1 christos tls_type |= GOT_TLS_IE;
1341 1.1 christos break;
1342 1.1 christos }
1343 1.1 christos
1344 1.1 christos /* Allocate space for a GOT entry, as well as a dynamic
1345 1.1 christos relocation for this entry. */
1346 1.7 christos if (htab->etab.sgot == NULL)
1347 1.1 christos {
1348 1.1 christos if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
1349 1.1 christos return FALSE;
1350 1.1 christos }
1351 1.1 christos
1352 1.1 christos if (r_type == R_PARISC_TLS_LDM21L
1353 1.1 christos || r_type == R_PARISC_TLS_LDM14R)
1354 1.1 christos htab->tls_ldm_got.refcount += 1;
1355 1.1 christos else
1356 1.1 christos {
1357 1.1 christos if (hh != NULL)
1358 1.1 christos {
1359 1.1 christos hh->eh.got.refcount += 1;
1360 1.1 christos old_tls_type = hh->tls_type;
1361 1.1 christos }
1362 1.1 christos else
1363 1.1 christos {
1364 1.1 christos bfd_signed_vma *local_got_refcounts;
1365 1.1 christos
1366 1.1 christos /* This is a global offset table entry for a local symbol. */
1367 1.1 christos local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1368 1.1 christos if (local_got_refcounts == NULL)
1369 1.1 christos return FALSE;
1370 1.1 christos local_got_refcounts[r_symndx] += 1;
1371 1.1 christos
1372 1.1 christos old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1373 1.1 christos }
1374 1.1 christos
1375 1.1 christos tls_type |= old_tls_type;
1376 1.1 christos
1377 1.1 christos if (old_tls_type != tls_type)
1378 1.1 christos {
1379 1.1 christos if (hh != NULL)
1380 1.1 christos hh->tls_type = tls_type;
1381 1.1 christos else
1382 1.1 christos hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1383 1.1 christos }
1384 1.1 christos
1385 1.1 christos }
1386 1.1 christos }
1387 1.1 christos
1388 1.1 christos if (need_entry & NEED_PLT)
1389 1.1 christos {
1390 1.1 christos /* If we are creating a shared library, and this is a reloc
1391 1.1 christos against a weak symbol or a global symbol in a dynamic
1392 1.1 christos object, then we will be creating an import stub and a
1393 1.1 christos .plt entry for the symbol. Similarly, on a normal link
1394 1.1 christos to symbols defined in a dynamic object we'll need the
1395 1.1 christos import stub and a .plt entry. We don't know yet whether
1396 1.1 christos the symbol is defined or not, so make an entry anyway and
1397 1.1 christos clean up later in adjust_dynamic_symbol. */
1398 1.1 christos if ((sec->flags & SEC_ALLOC) != 0)
1399 1.1 christos {
1400 1.1 christos if (hh != NULL)
1401 1.1 christos {
1402 1.1 christos hh->eh.needs_plt = 1;
1403 1.1 christos hh->eh.plt.refcount += 1;
1404 1.1 christos
1405 1.1 christos /* If this .plt entry is for a plabel, mark it so
1406 1.1 christos that adjust_dynamic_symbol will keep the entry
1407 1.1 christos even if it appears to be local. */
1408 1.1 christos if (need_entry & PLT_PLABEL)
1409 1.1 christos hh->plabel = 1;
1410 1.1 christos }
1411 1.1 christos else if (need_entry & PLT_PLABEL)
1412 1.1 christos {
1413 1.1 christos bfd_signed_vma *local_got_refcounts;
1414 1.1 christos bfd_signed_vma *local_plt_refcounts;
1415 1.1 christos
1416 1.1 christos local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1417 1.1 christos if (local_got_refcounts == NULL)
1418 1.1 christos return FALSE;
1419 1.1 christos local_plt_refcounts = (local_got_refcounts
1420 1.1 christos + symtab_hdr->sh_info);
1421 1.1 christos local_plt_refcounts[r_symndx] += 1;
1422 1.1 christos }
1423 1.1 christos }
1424 1.1 christos }
1425 1.1 christos
1426 1.1 christos if (need_entry & NEED_DYNREL)
1427 1.1 christos {
1428 1.1 christos /* Flag this symbol as having a non-got, non-plt reference
1429 1.1 christos so that we generate copy relocs if it turns out to be
1430 1.1 christos dynamic. */
1431 1.6 christos if (hh != NULL && !bfd_link_pic (info))
1432 1.1 christos hh->eh.non_got_ref = 1;
1433 1.1 christos
1434 1.1 christos /* If we are creating a shared library then we need to copy
1435 1.1 christos the reloc into the shared library. However, if we are
1436 1.1 christos linking with -Bsymbolic, we need only copy absolute
1437 1.1 christos relocs or relocs against symbols that are not defined in
1438 1.1 christos an object we are including in the link. PC- or DP- or
1439 1.1 christos DLT-relative relocs against any local sym or global sym
1440 1.1 christos with DEF_REGULAR set, can be discarded. At this point we
1441 1.1 christos have not seen all the input files, so it is possible that
1442 1.1 christos DEF_REGULAR is not set now but will be set later (it is
1443 1.1 christos never cleared). We account for that possibility below by
1444 1.1 christos storing information in the dyn_relocs field of the
1445 1.1 christos hash table entry.
1446 1.1 christos
1447 1.1 christos A similar situation to the -Bsymbolic case occurs when
1448 1.1 christos creating shared libraries and symbol visibility changes
1449 1.1 christos render the symbol local.
1450 1.1 christos
1451 1.1 christos As it turns out, all the relocs we will be creating here
1452 1.1 christos are absolute, so we cannot remove them on -Bsymbolic
1453 1.1 christos links or visibility changes anyway. A STUB_REL reloc
1454 1.1 christos is absolute too, as in that case it is the reloc in the
1455 1.1 christos stub we will be creating, rather than copying the PCREL
1456 1.1 christos reloc in the branch.
1457 1.1 christos
1458 1.1 christos If on the other hand, we are creating an executable, we
1459 1.1 christos may need to keep relocations for symbols satisfied by a
1460 1.1 christos dynamic library if we manage to avoid copy relocs for the
1461 1.1 christos symbol. */
1462 1.6 christos if ((bfd_link_pic (info)
1463 1.1 christos && (sec->flags & SEC_ALLOC) != 0
1464 1.1 christos && (IS_ABSOLUTE_RELOC (r_type)
1465 1.1 christos || (hh != NULL
1466 1.6 christos && (!SYMBOLIC_BIND (info, &hh->eh)
1467 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak
1468 1.1 christos || !hh->eh.def_regular))))
1469 1.1 christos || (ELIMINATE_COPY_RELOCS
1470 1.6 christos && !bfd_link_pic (info)
1471 1.1 christos && (sec->flags & SEC_ALLOC) != 0
1472 1.1 christos && hh != NULL
1473 1.1 christos && (hh->eh.root.type == bfd_link_hash_defweak
1474 1.1 christos || !hh->eh.def_regular)))
1475 1.1 christos {
1476 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
1477 1.1 christos struct elf32_hppa_dyn_reloc_entry **hdh_head;
1478 1.1 christos
1479 1.1 christos /* Create a reloc section in dynobj and make room for
1480 1.1 christos this reloc. */
1481 1.1 christos if (sreloc == NULL)
1482 1.1 christos {
1483 1.1 christos sreloc = _bfd_elf_make_dynamic_reloc_section
1484 1.1 christos (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1485 1.1 christos
1486 1.1 christos if (sreloc == NULL)
1487 1.1 christos {
1488 1.1 christos bfd_set_error (bfd_error_bad_value);
1489 1.1 christos return FALSE;
1490 1.1 christos }
1491 1.1 christos }
1492 1.1 christos
1493 1.1 christos /* If this is a global symbol, we count the number of
1494 1.1 christos relocations we need for this symbol. */
1495 1.1 christos if (hh != NULL)
1496 1.1 christos {
1497 1.1 christos hdh_head = &hh->dyn_relocs;
1498 1.1 christos }
1499 1.1 christos else
1500 1.1 christos {
1501 1.1 christos /* Track dynamic relocs needed for local syms too.
1502 1.1 christos We really need local syms available to do this
1503 1.1 christos easily. Oh well. */
1504 1.1 christos asection *sr;
1505 1.1 christos void *vpp;
1506 1.1 christos Elf_Internal_Sym *isym;
1507 1.1 christos
1508 1.1 christos isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1509 1.1 christos abfd, r_symndx);
1510 1.1 christos if (isym == NULL)
1511 1.1 christos return FALSE;
1512 1.1 christos
1513 1.1 christos sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1514 1.1 christos if (sr == NULL)
1515 1.1 christos sr = sec;
1516 1.1 christos
1517 1.1 christos vpp = &elf_section_data (sr)->local_dynrel;
1518 1.1 christos hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
1519 1.1 christos }
1520 1.1 christos
1521 1.1 christos hdh_p = *hdh_head;
1522 1.1 christos if (hdh_p == NULL || hdh_p->sec != sec)
1523 1.1 christos {
1524 1.1 christos hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
1525 1.1 christos if (hdh_p == NULL)
1526 1.1 christos return FALSE;
1527 1.1 christos hdh_p->hdh_next = *hdh_head;
1528 1.1 christos *hdh_head = hdh_p;
1529 1.1 christos hdh_p->sec = sec;
1530 1.1 christos hdh_p->count = 0;
1531 1.1 christos #if RELATIVE_DYNRELOCS
1532 1.1 christos hdh_p->relative_count = 0;
1533 1.1 christos #endif
1534 1.1 christos }
1535 1.1 christos
1536 1.1 christos hdh_p->count += 1;
1537 1.1 christos #if RELATIVE_DYNRELOCS
1538 1.1 christos if (!IS_ABSOLUTE_RELOC (rtype))
1539 1.1 christos hdh_p->relative_count += 1;
1540 1.1 christos #endif
1541 1.1 christos }
1542 1.1 christos }
1543 1.1 christos }
1544 1.1 christos
1545 1.1 christos return TRUE;
1546 1.1 christos }
1547 1.1 christos
1548 1.1 christos /* Return the section that should be marked against garbage collection
1549 1.1 christos for a given relocation. */
1550 1.1 christos
1551 1.1 christos static asection *
1552 1.1 christos elf32_hppa_gc_mark_hook (asection *sec,
1553 1.1 christos struct bfd_link_info *info,
1554 1.1 christos Elf_Internal_Rela *rela,
1555 1.1 christos struct elf_link_hash_entry *hh,
1556 1.1 christos Elf_Internal_Sym *sym)
1557 1.1 christos {
1558 1.1 christos if (hh != NULL)
1559 1.1 christos switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1560 1.1 christos {
1561 1.1 christos case R_PARISC_GNU_VTINHERIT:
1562 1.1 christos case R_PARISC_GNU_VTENTRY:
1563 1.1 christos return NULL;
1564 1.1 christos }
1565 1.1 christos
1566 1.1 christos return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
1567 1.1 christos }
1568 1.1 christos
1569 1.1 christos /* Update the got and plt entry reference counts for the section being
1570 1.1 christos removed. */
1571 1.1 christos
1572 1.1 christos static bfd_boolean
1573 1.1 christos elf32_hppa_gc_sweep_hook (bfd *abfd,
1574 1.1 christos struct bfd_link_info *info ATTRIBUTE_UNUSED,
1575 1.1 christos asection *sec,
1576 1.1 christos const Elf_Internal_Rela *relocs)
1577 1.1 christos {
1578 1.1 christos Elf_Internal_Shdr *symtab_hdr;
1579 1.1 christos struct elf_link_hash_entry **eh_syms;
1580 1.1 christos bfd_signed_vma *local_got_refcounts;
1581 1.1 christos bfd_signed_vma *local_plt_refcounts;
1582 1.1 christos const Elf_Internal_Rela *rela, *relend;
1583 1.1 christos struct elf32_hppa_link_hash_table *htab;
1584 1.1 christos
1585 1.6 christos if (bfd_link_relocatable (info))
1586 1.1 christos return TRUE;
1587 1.1 christos
1588 1.1 christos htab = hppa_link_hash_table (info);
1589 1.1 christos if (htab == NULL)
1590 1.1 christos return FALSE;
1591 1.1 christos
1592 1.1 christos elf_section_data (sec)->local_dynrel = NULL;
1593 1.1 christos
1594 1.1 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1595 1.1 christos eh_syms = elf_sym_hashes (abfd);
1596 1.1 christos local_got_refcounts = elf_local_got_refcounts (abfd);
1597 1.1 christos local_plt_refcounts = local_got_refcounts;
1598 1.1 christos if (local_plt_refcounts != NULL)
1599 1.1 christos local_plt_refcounts += symtab_hdr->sh_info;
1600 1.1 christos
1601 1.1 christos relend = relocs + sec->reloc_count;
1602 1.1 christos for (rela = relocs; rela < relend; rela++)
1603 1.1 christos {
1604 1.1 christos unsigned long r_symndx;
1605 1.1 christos unsigned int r_type;
1606 1.1 christos struct elf_link_hash_entry *eh = NULL;
1607 1.1 christos
1608 1.1 christos r_symndx = ELF32_R_SYM (rela->r_info);
1609 1.1 christos if (r_symndx >= symtab_hdr->sh_info)
1610 1.1 christos {
1611 1.1 christos struct elf32_hppa_link_hash_entry *hh;
1612 1.1 christos struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1613 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
1614 1.1 christos
1615 1.1 christos eh = eh_syms[r_symndx - symtab_hdr->sh_info];
1616 1.1 christos while (eh->root.type == bfd_link_hash_indirect
1617 1.1 christos || eh->root.type == bfd_link_hash_warning)
1618 1.1 christos eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
1619 1.1 christos hh = hppa_elf_hash_entry (eh);
1620 1.1 christos
1621 1.1 christos for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next)
1622 1.1 christos if (hdh_p->sec == sec)
1623 1.1 christos {
1624 1.1 christos /* Everything must go for SEC. */
1625 1.1 christos *hdh_pp = hdh_p->hdh_next;
1626 1.1 christos break;
1627 1.1 christos }
1628 1.1 christos }
1629 1.1 christos
1630 1.1 christos r_type = ELF32_R_TYPE (rela->r_info);
1631 1.1 christos r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
1632 1.1 christos
1633 1.1 christos switch (r_type)
1634 1.1 christos {
1635 1.1 christos case R_PARISC_DLTIND14F:
1636 1.1 christos case R_PARISC_DLTIND14R:
1637 1.1 christos case R_PARISC_DLTIND21L:
1638 1.1 christos case R_PARISC_TLS_GD21L:
1639 1.1 christos case R_PARISC_TLS_GD14R:
1640 1.1 christos case R_PARISC_TLS_IE21L:
1641 1.1 christos case R_PARISC_TLS_IE14R:
1642 1.1 christos if (eh != NULL)
1643 1.1 christos {
1644 1.1 christos if (eh->got.refcount > 0)
1645 1.1 christos eh->got.refcount -= 1;
1646 1.1 christos }
1647 1.1 christos else if (local_got_refcounts != NULL)
1648 1.1 christos {
1649 1.1 christos if (local_got_refcounts[r_symndx] > 0)
1650 1.1 christos local_got_refcounts[r_symndx] -= 1;
1651 1.1 christos }
1652 1.1 christos break;
1653 1.1 christos
1654 1.1 christos case R_PARISC_TLS_LDM21L:
1655 1.1 christos case R_PARISC_TLS_LDM14R:
1656 1.1 christos htab->tls_ldm_got.refcount -= 1;
1657 1.1 christos break;
1658 1.1 christos
1659 1.1 christos case R_PARISC_PCREL12F:
1660 1.1 christos case R_PARISC_PCREL17C:
1661 1.1 christos case R_PARISC_PCREL17F:
1662 1.1 christos case R_PARISC_PCREL22F:
1663 1.1 christos if (eh != NULL)
1664 1.1 christos {
1665 1.1 christos if (eh->plt.refcount > 0)
1666 1.1 christos eh->plt.refcount -= 1;
1667 1.1 christos }
1668 1.1 christos break;
1669 1.1 christos
1670 1.1 christos case R_PARISC_PLABEL14R:
1671 1.1 christos case R_PARISC_PLABEL21L:
1672 1.1 christos case R_PARISC_PLABEL32:
1673 1.1 christos if (eh != NULL)
1674 1.1 christos {
1675 1.1 christos if (eh->plt.refcount > 0)
1676 1.1 christos eh->plt.refcount -= 1;
1677 1.1 christos }
1678 1.1 christos else if (local_plt_refcounts != NULL)
1679 1.1 christos {
1680 1.1 christos if (local_plt_refcounts[r_symndx] > 0)
1681 1.1 christos local_plt_refcounts[r_symndx] -= 1;
1682 1.1 christos }
1683 1.1 christos break;
1684 1.1 christos
1685 1.1 christos default:
1686 1.1 christos break;
1687 1.1 christos }
1688 1.1 christos }
1689 1.1 christos
1690 1.1 christos return TRUE;
1691 1.1 christos }
1692 1.1 christos
1693 1.1 christos /* Support for core dump NOTE sections. */
1694 1.1 christos
1695 1.1 christos static bfd_boolean
1696 1.1 christos elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1697 1.1 christos {
1698 1.1 christos int offset;
1699 1.1 christos size_t size;
1700 1.1 christos
1701 1.1 christos switch (note->descsz)
1702 1.1 christos {
1703 1.1 christos default:
1704 1.1 christos return FALSE;
1705 1.1 christos
1706 1.1 christos case 396: /* Linux/hppa */
1707 1.1 christos /* pr_cursig */
1708 1.1 christos elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
1709 1.1 christos
1710 1.1 christos /* pr_pid */
1711 1.1 christos elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
1712 1.1 christos
1713 1.1 christos /* pr_reg */
1714 1.1 christos offset = 72;
1715 1.1 christos size = 320;
1716 1.1 christos
1717 1.1 christos break;
1718 1.1 christos }
1719 1.1 christos
1720 1.1 christos /* Make a ".reg/999" section. */
1721 1.1 christos return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1722 1.1 christos size, note->descpos + offset);
1723 1.1 christos }
1724 1.1 christos
1725 1.1 christos static bfd_boolean
1726 1.1 christos elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1727 1.1 christos {
1728 1.1 christos switch (note->descsz)
1729 1.1 christos {
1730 1.1 christos default:
1731 1.1 christos return FALSE;
1732 1.1 christos
1733 1.1 christos case 124: /* Linux/hppa elf_prpsinfo. */
1734 1.1 christos elf_tdata (abfd)->core->program
1735 1.1 christos = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
1736 1.1 christos elf_tdata (abfd)->core->command
1737 1.1 christos = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1738 1.1 christos }
1739 1.1 christos
1740 1.1 christos /* Note that for some reason, a spurious space is tacked
1741 1.1 christos onto the end of the args in some (at least one anyway)
1742 1.1 christos implementations, so strip it off if it exists. */
1743 1.1 christos {
1744 1.1 christos char *command = elf_tdata (abfd)->core->command;
1745 1.1 christos int n = strlen (command);
1746 1.1 christos
1747 1.1 christos if (0 < n && command[n - 1] == ' ')
1748 1.1 christos command[n - 1] = '\0';
1749 1.1 christos }
1750 1.1 christos
1751 1.1 christos return TRUE;
1752 1.1 christos }
1753 1.1 christos
1754 1.1 christos /* Our own version of hide_symbol, so that we can keep plt entries for
1755 1.1 christos plabels. */
1756 1.1 christos
1757 1.1 christos static void
1758 1.1 christos elf32_hppa_hide_symbol (struct bfd_link_info *info,
1759 1.1 christos struct elf_link_hash_entry *eh,
1760 1.1 christos bfd_boolean force_local)
1761 1.1 christos {
1762 1.1 christos if (force_local)
1763 1.1 christos {
1764 1.1 christos eh->forced_local = 1;
1765 1.1 christos if (eh->dynindx != -1)
1766 1.1 christos {
1767 1.1 christos eh->dynindx = -1;
1768 1.1 christos _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1769 1.1 christos eh->dynstr_index);
1770 1.1 christos }
1771 1.1 christos
1772 1.1 christos /* PR 16082: Remove version information from hidden symbol. */
1773 1.1 christos eh->verinfo.verdef = NULL;
1774 1.1 christos eh->verinfo.vertree = NULL;
1775 1.1 christos }
1776 1.1 christos
1777 1.1 christos /* STT_GNU_IFUNC symbol must go through PLT. */
1778 1.1 christos if (! hppa_elf_hash_entry (eh)->plabel
1779 1.1 christos && eh->type != STT_GNU_IFUNC)
1780 1.1 christos {
1781 1.1 christos eh->needs_plt = 0;
1782 1.1 christos eh->plt = elf_hash_table (info)->init_plt_offset;
1783 1.1 christos }
1784 1.1 christos }
1785 1.1 christos
1786 1.1 christos /* Adjust a symbol defined by a dynamic object and referenced by a
1787 1.1 christos regular object. The current definition is in some section of the
1788 1.1 christos dynamic object, but we're not including those sections. We have to
1789 1.1 christos change the definition to something the rest of the link can
1790 1.1 christos understand. */
1791 1.1 christos
1792 1.1 christos static bfd_boolean
1793 1.1 christos elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
1794 1.1 christos struct elf_link_hash_entry *eh)
1795 1.1 christos {
1796 1.1 christos struct elf32_hppa_link_hash_table *htab;
1797 1.7 christos asection *sec, *srel;
1798 1.1 christos
1799 1.1 christos /* If this is a function, put it in the procedure linkage table. We
1800 1.1 christos will fill in the contents of the procedure linkage table later. */
1801 1.1 christos if (eh->type == STT_FUNC
1802 1.1 christos || eh->needs_plt)
1803 1.1 christos {
1804 1.1 christos /* If the symbol is used by a plabel, we must allocate a PLT slot.
1805 1.1 christos The refcounts are not reliable when it has been hidden since
1806 1.1 christos hide_symbol can be called before the plabel flag is set. */
1807 1.1 christos if (hppa_elf_hash_entry (eh)->plabel
1808 1.1 christos && eh->plt.refcount <= 0)
1809 1.1 christos eh->plt.refcount = 1;
1810 1.1 christos
1811 1.1 christos if (eh->plt.refcount <= 0
1812 1.1 christos || (eh->def_regular
1813 1.1 christos && eh->root.type != bfd_link_hash_defweak
1814 1.1 christos && ! hppa_elf_hash_entry (eh)->plabel
1815 1.6 christos && (!bfd_link_pic (info) || SYMBOLIC_BIND (info, eh))))
1816 1.1 christos {
1817 1.1 christos /* The .plt entry is not needed when:
1818 1.1 christos a) Garbage collection has removed all references to the
1819 1.1 christos symbol, or
1820 1.1 christos b) We know for certain the symbol is defined in this
1821 1.1 christos object, and it's not a weak definition, nor is the symbol
1822 1.1 christos used by a plabel relocation. Either this object is the
1823 1.1 christos application or we are doing a shared symbolic link. */
1824 1.1 christos
1825 1.1 christos eh->plt.offset = (bfd_vma) -1;
1826 1.1 christos eh->needs_plt = 0;
1827 1.1 christos }
1828 1.1 christos
1829 1.1 christos return TRUE;
1830 1.1 christos }
1831 1.1 christos else
1832 1.1 christos eh->plt.offset = (bfd_vma) -1;
1833 1.1 christos
1834 1.1 christos /* If this is a weak symbol, and there is a real definition, the
1835 1.1 christos processor independent code will have arranged for us to see the
1836 1.1 christos real definition first, and we can just use the same value. */
1837 1.1 christos if (eh->u.weakdef != NULL)
1838 1.1 christos {
1839 1.1 christos if (eh->u.weakdef->root.type != bfd_link_hash_defined
1840 1.1 christos && eh->u.weakdef->root.type != bfd_link_hash_defweak)
1841 1.1 christos abort ();
1842 1.1 christos eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1843 1.1 christos eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
1844 1.1 christos if (ELIMINATE_COPY_RELOCS)
1845 1.1 christos eh->non_got_ref = eh->u.weakdef->non_got_ref;
1846 1.1 christos return TRUE;
1847 1.1 christos }
1848 1.1 christos
1849 1.1 christos /* This is a reference to a symbol defined by a dynamic object which
1850 1.1 christos is not a function. */
1851 1.1 christos
1852 1.1 christos /* If we are creating a shared library, we must presume that the
1853 1.1 christos only references to the symbol are via the global offset table.
1854 1.1 christos For such cases we need not do anything here; the relocations will
1855 1.1 christos be handled correctly by relocate_section. */
1856 1.6 christos if (bfd_link_pic (info))
1857 1.1 christos return TRUE;
1858 1.1 christos
1859 1.1 christos /* If there are no references to this symbol that do not use the
1860 1.1 christos GOT, we don't need to generate a copy reloc. */
1861 1.1 christos if (!eh->non_got_ref)
1862 1.1 christos return TRUE;
1863 1.1 christos
1864 1.1 christos if (ELIMINATE_COPY_RELOCS)
1865 1.1 christos {
1866 1.1 christos struct elf32_hppa_link_hash_entry *hh;
1867 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
1868 1.1 christos
1869 1.1 christos hh = hppa_elf_hash_entry (eh);
1870 1.1 christos for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
1871 1.1 christos {
1872 1.1 christos sec = hdh_p->sec->output_section;
1873 1.1 christos if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
1874 1.1 christos break;
1875 1.1 christos }
1876 1.1 christos
1877 1.1 christos /* If we didn't find any dynamic relocs in read-only sections, then
1878 1.1 christos we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1879 1.1 christos if (hdh_p == NULL)
1880 1.1 christos {
1881 1.1 christos eh->non_got_ref = 0;
1882 1.1 christos return TRUE;
1883 1.1 christos }
1884 1.1 christos }
1885 1.1 christos
1886 1.1 christos /* We must allocate the symbol in our .dynbss section, which will
1887 1.1 christos become part of the .bss section of the executable. There will be
1888 1.1 christos an entry for this symbol in the .dynsym section. The dynamic
1889 1.1 christos object will contain position independent code, so all references
1890 1.1 christos from the dynamic object to this symbol will go through the global
1891 1.1 christos offset table. The dynamic linker will use the .dynsym entry to
1892 1.1 christos determine the address it must put in the global offset table, so
1893 1.1 christos both the dynamic object and the regular object will refer to the
1894 1.1 christos same memory location for the variable. */
1895 1.1 christos
1896 1.1 christos htab = hppa_link_hash_table (info);
1897 1.1 christos if (htab == NULL)
1898 1.1 christos return FALSE;
1899 1.1 christos
1900 1.1 christos /* We must generate a COPY reloc to tell the dynamic linker to
1901 1.1 christos copy the initial value out of the dynamic object and into the
1902 1.1 christos runtime process image. */
1903 1.7 christos if ((eh->root.u.def.section->flags & SEC_READONLY) != 0)
1904 1.7 christos {
1905 1.7 christos sec = htab->etab.sdynrelro;
1906 1.7 christos srel = htab->etab.sreldynrelro;
1907 1.7 christos }
1908 1.7 christos else
1909 1.7 christos {
1910 1.7 christos sec = htab->etab.sdynbss;
1911 1.7 christos srel = htab->etab.srelbss;
1912 1.7 christos }
1913 1.1 christos if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
1914 1.1 christos {
1915 1.7 christos srel->size += sizeof (Elf32_External_Rela);
1916 1.1 christos eh->needs_copy = 1;
1917 1.1 christos }
1918 1.1 christos
1919 1.7 christos return _bfd_elf_adjust_dynamic_copy (info, eh, sec);
1920 1.7 christos }
1921 1.7 christos
1922 1.7 christos /* Make an undefined weak symbol dynamic. */
1923 1.1 christos
1924 1.7 christos static bfd_boolean
1925 1.7 christos ensure_undef_weak_dynamic (struct bfd_link_info *info,
1926 1.7 christos struct elf_link_hash_entry *eh)
1927 1.7 christos {
1928 1.7 christos if (eh->dynindx == -1
1929 1.7 christos && !eh->forced_local
1930 1.7 christos && eh->type != STT_PARISC_MILLI
1931 1.7 christos && eh->root.type == bfd_link_hash_undefweak
1932 1.7 christos && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT)
1933 1.7 christos return bfd_elf_link_record_dynamic_symbol (info, eh);
1934 1.7 christos return TRUE;
1935 1.1 christos }
1936 1.1 christos
1937 1.1 christos /* Allocate space in the .plt for entries that won't have relocations.
1938 1.1 christos ie. plabel entries. */
1939 1.1 christos
1940 1.1 christos static bfd_boolean
1941 1.1 christos allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
1942 1.1 christos {
1943 1.1 christos struct bfd_link_info *info;
1944 1.1 christos struct elf32_hppa_link_hash_table *htab;
1945 1.1 christos struct elf32_hppa_link_hash_entry *hh;
1946 1.1 christos asection *sec;
1947 1.1 christos
1948 1.1 christos if (eh->root.type == bfd_link_hash_indirect)
1949 1.1 christos return TRUE;
1950 1.1 christos
1951 1.1 christos info = (struct bfd_link_info *) inf;
1952 1.1 christos hh = hppa_elf_hash_entry (eh);
1953 1.1 christos htab = hppa_link_hash_table (info);
1954 1.1 christos if (htab == NULL)
1955 1.1 christos return FALSE;
1956 1.1 christos
1957 1.1 christos if (htab->etab.dynamic_sections_created
1958 1.1 christos && eh->plt.refcount > 0)
1959 1.1 christos {
1960 1.7 christos if (!ensure_undef_weak_dynamic (info, eh))
1961 1.7 christos return FALSE;
1962 1.1 christos
1963 1.6 christos if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
1964 1.1 christos {
1965 1.1 christos /* Allocate these later. From this point on, h->plabel
1966 1.1 christos means that the plt entry is only used by a plabel.
1967 1.1 christos We'll be using a normal plt entry for this symbol, so
1968 1.1 christos clear the plabel indicator. */
1969 1.1 christos
1970 1.1 christos hh->plabel = 0;
1971 1.1 christos }
1972 1.1 christos else if (hh->plabel)
1973 1.1 christos {
1974 1.1 christos /* Make an entry in the .plt section for plabel references
1975 1.1 christos that won't have a .plt entry for other reasons. */
1976 1.7 christos sec = htab->etab.splt;
1977 1.1 christos eh->plt.offset = sec->size;
1978 1.1 christos sec->size += PLT_ENTRY_SIZE;
1979 1.7 christos if (bfd_link_pic (info))
1980 1.7 christos htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
1981 1.1 christos }
1982 1.1 christos else
1983 1.1 christos {
1984 1.1 christos /* No .plt entry needed. */
1985 1.1 christos eh->plt.offset = (bfd_vma) -1;
1986 1.1 christos eh->needs_plt = 0;
1987 1.1 christos }
1988 1.1 christos }
1989 1.1 christos else
1990 1.1 christos {
1991 1.1 christos eh->plt.offset = (bfd_vma) -1;
1992 1.1 christos eh->needs_plt = 0;
1993 1.1 christos }
1994 1.1 christos
1995 1.1 christos return TRUE;
1996 1.1 christos }
1997 1.1 christos
1998 1.1 christos /* Allocate space in .plt, .got and associated reloc sections for
1999 1.1 christos global syms. */
2000 1.1 christos
2001 1.1 christos static bfd_boolean
2002 1.1 christos allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
2003 1.1 christos {
2004 1.1 christos struct bfd_link_info *info;
2005 1.1 christos struct elf32_hppa_link_hash_table *htab;
2006 1.1 christos asection *sec;
2007 1.1 christos struct elf32_hppa_link_hash_entry *hh;
2008 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
2009 1.1 christos
2010 1.1 christos if (eh->root.type == bfd_link_hash_indirect)
2011 1.1 christos return TRUE;
2012 1.1 christos
2013 1.1 christos info = inf;
2014 1.1 christos htab = hppa_link_hash_table (info);
2015 1.1 christos if (htab == NULL)
2016 1.1 christos return FALSE;
2017 1.1 christos
2018 1.1 christos hh = hppa_elf_hash_entry (eh);
2019 1.1 christos
2020 1.1 christos if (htab->etab.dynamic_sections_created
2021 1.1 christos && eh->plt.offset != (bfd_vma) -1
2022 1.1 christos && !hh->plabel
2023 1.1 christos && eh->plt.refcount > 0)
2024 1.1 christos {
2025 1.1 christos /* Make an entry in the .plt section. */
2026 1.7 christos sec = htab->etab.splt;
2027 1.1 christos eh->plt.offset = sec->size;
2028 1.1 christos sec->size += PLT_ENTRY_SIZE;
2029 1.1 christos
2030 1.1 christos /* We also need to make an entry in the .rela.plt section. */
2031 1.7 christos htab->etab.srelplt->size += sizeof (Elf32_External_Rela);
2032 1.1 christos htab->need_plt_stub = 1;
2033 1.1 christos }
2034 1.1 christos
2035 1.1 christos if (eh->got.refcount > 0)
2036 1.1 christos {
2037 1.7 christos if (!ensure_undef_weak_dynamic (info, eh))
2038 1.7 christos return FALSE;
2039 1.1 christos
2040 1.7 christos sec = htab->etab.sgot;
2041 1.1 christos eh->got.offset = sec->size;
2042 1.1 christos sec->size += GOT_ENTRY_SIZE;
2043 1.1 christos /* R_PARISC_TLS_GD* needs two GOT entries */
2044 1.1 christos if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2045 1.1 christos sec->size += GOT_ENTRY_SIZE * 2;
2046 1.1 christos else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2047 1.1 christos sec->size += GOT_ENTRY_SIZE;
2048 1.1 christos if (htab->etab.dynamic_sections_created
2049 1.6 christos && (bfd_link_pic (info)
2050 1.1 christos || (eh->dynindx != -1
2051 1.1 christos && !eh->forced_local)))
2052 1.1 christos {
2053 1.7 christos htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
2054 1.1 christos if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2055 1.7 christos htab->etab.srelgot->size += 2 * sizeof (Elf32_External_Rela);
2056 1.1 christos else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2057 1.7 christos htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
2058 1.1 christos }
2059 1.1 christos }
2060 1.1 christos else
2061 1.1 christos eh->got.offset = (bfd_vma) -1;
2062 1.1 christos
2063 1.1 christos if (hh->dyn_relocs == NULL)
2064 1.1 christos return TRUE;
2065 1.1 christos
2066 1.1 christos /* If this is a -Bsymbolic shared link, then we need to discard all
2067 1.1 christos space allocated for dynamic pc-relative relocs against symbols
2068 1.1 christos defined in a regular object. For the normal shared case, discard
2069 1.1 christos space for relocs that have become local due to symbol visibility
2070 1.1 christos changes. */
2071 1.6 christos if (bfd_link_pic (info))
2072 1.1 christos {
2073 1.1 christos #if RELATIVE_DYNRELOCS
2074 1.1 christos if (SYMBOL_CALLS_LOCAL (info, eh))
2075 1.1 christos {
2076 1.1 christos struct elf32_hppa_dyn_reloc_entry **hdh_pp;
2077 1.1 christos
2078 1.1 christos for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
2079 1.1 christos {
2080 1.1 christos hdh_p->count -= hdh_p->relative_count;
2081 1.1 christos hdh_p->relative_count = 0;
2082 1.1 christos if (hdh_p->count == 0)
2083 1.1 christos *hdh_pp = hdh_p->hdh_next;
2084 1.1 christos else
2085 1.1 christos hdh_pp = &hdh_p->hdh_next;
2086 1.1 christos }
2087 1.1 christos }
2088 1.1 christos #endif
2089 1.1 christos
2090 1.1 christos /* Also discard relocs on undefined weak syms with non-default
2091 1.1 christos visibility. */
2092 1.1 christos if (hh->dyn_relocs != NULL
2093 1.1 christos && eh->root.type == bfd_link_hash_undefweak)
2094 1.1 christos {
2095 1.1 christos if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2096 1.1 christos hh->dyn_relocs = NULL;
2097 1.1 christos
2098 1.7 christos else if (!ensure_undef_weak_dynamic (info, eh))
2099 1.7 christos return FALSE;
2100 1.1 christos }
2101 1.1 christos }
2102 1.1 christos else
2103 1.1 christos {
2104 1.1 christos /* For the non-shared case, discard space for relocs against
2105 1.1 christos symbols which turn out to need copy relocs or are not
2106 1.1 christos dynamic. */
2107 1.1 christos
2108 1.1 christos if (!eh->non_got_ref
2109 1.1 christos && ((ELIMINATE_COPY_RELOCS
2110 1.1 christos && eh->def_dynamic
2111 1.1 christos && !eh->def_regular)
2112 1.1 christos || (htab->etab.dynamic_sections_created
2113 1.1 christos && (eh->root.type == bfd_link_hash_undefweak
2114 1.1 christos || eh->root.type == bfd_link_hash_undefined))))
2115 1.1 christos {
2116 1.7 christos if (!ensure_undef_weak_dynamic (info, eh))
2117 1.7 christos return FALSE;
2118 1.1 christos
2119 1.1 christos /* If that succeeded, we know we'll be keeping all the
2120 1.1 christos relocs. */
2121 1.1 christos if (eh->dynindx != -1)
2122 1.1 christos goto keep;
2123 1.1 christos }
2124 1.1 christos
2125 1.1 christos hh->dyn_relocs = NULL;
2126 1.1 christos return TRUE;
2127 1.1 christos
2128 1.1 christos keep: ;
2129 1.1 christos }
2130 1.1 christos
2131 1.1 christos /* Finally, allocate space. */
2132 1.1 christos for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
2133 1.1 christos {
2134 1.1 christos asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2135 1.1 christos sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
2136 1.1 christos }
2137 1.1 christos
2138 1.1 christos return TRUE;
2139 1.1 christos }
2140 1.1 christos
2141 1.1 christos /* This function is called via elf_link_hash_traverse to force
2142 1.1 christos millicode symbols local so they do not end up as globals in the
2143 1.1 christos dynamic symbol table. We ought to be able to do this in
2144 1.1 christos adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2145 1.1 christos for all dynamic symbols. Arguably, this is a bug in
2146 1.1 christos elf_adjust_dynamic_symbol. */
2147 1.1 christos
2148 1.1 christos static bfd_boolean
2149 1.1 christos clobber_millicode_symbols (struct elf_link_hash_entry *eh,
2150 1.1 christos struct bfd_link_info *info)
2151 1.1 christos {
2152 1.1 christos if (eh->type == STT_PARISC_MILLI
2153 1.1 christos && !eh->forced_local)
2154 1.1 christos {
2155 1.1 christos elf32_hppa_hide_symbol (info, eh, TRUE);
2156 1.1 christos }
2157 1.1 christos return TRUE;
2158 1.1 christos }
2159 1.1 christos
2160 1.1 christos /* Find any dynamic relocs that apply to read-only sections. */
2161 1.1 christos
2162 1.1 christos static bfd_boolean
2163 1.1 christos readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
2164 1.1 christos {
2165 1.1 christos struct elf32_hppa_link_hash_entry *hh;
2166 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
2167 1.1 christos
2168 1.1 christos hh = hppa_elf_hash_entry (eh);
2169 1.1 christos for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
2170 1.1 christos {
2171 1.1 christos asection *sec = hdh_p->sec->output_section;
2172 1.1 christos
2173 1.1 christos if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
2174 1.1 christos {
2175 1.1 christos struct bfd_link_info *info = inf;
2176 1.1 christos
2177 1.1 christos info->flags |= DF_TEXTREL;
2178 1.1 christos
2179 1.1 christos /* Not an error, just cut short the traversal. */
2180 1.1 christos return FALSE;
2181 1.1 christos }
2182 1.1 christos }
2183 1.1 christos return TRUE;
2184 1.1 christos }
2185 1.1 christos
2186 1.1 christos /* Set the sizes of the dynamic sections. */
2187 1.1 christos
2188 1.1 christos static bfd_boolean
2189 1.1 christos elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2190 1.1 christos struct bfd_link_info *info)
2191 1.1 christos {
2192 1.1 christos struct elf32_hppa_link_hash_table *htab;
2193 1.1 christos bfd *dynobj;
2194 1.1 christos bfd *ibfd;
2195 1.1 christos asection *sec;
2196 1.1 christos bfd_boolean relocs;
2197 1.1 christos
2198 1.1 christos htab = hppa_link_hash_table (info);
2199 1.1 christos if (htab == NULL)
2200 1.1 christos return FALSE;
2201 1.1 christos
2202 1.1 christos dynobj = htab->etab.dynobj;
2203 1.1 christos if (dynobj == NULL)
2204 1.1 christos abort ();
2205 1.1 christos
2206 1.1 christos if (htab->etab.dynamic_sections_created)
2207 1.1 christos {
2208 1.1 christos /* Set the contents of the .interp section to the interpreter. */
2209 1.6 christos if (bfd_link_executable (info) && !info->nointerp)
2210 1.1 christos {
2211 1.1 christos sec = bfd_get_linker_section (dynobj, ".interp");
2212 1.1 christos if (sec == NULL)
2213 1.1 christos abort ();
2214 1.1 christos sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2215 1.1 christos sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2216 1.1 christos }
2217 1.1 christos
2218 1.1 christos /* Force millicode symbols local. */
2219 1.1 christos elf_link_hash_traverse (&htab->etab,
2220 1.1 christos clobber_millicode_symbols,
2221 1.1 christos info);
2222 1.1 christos }
2223 1.1 christos
2224 1.1 christos /* Set up .got and .plt offsets for local syms, and space for local
2225 1.1 christos dynamic relocs. */
2226 1.3 christos for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2227 1.1 christos {
2228 1.1 christos bfd_signed_vma *local_got;
2229 1.1 christos bfd_signed_vma *end_local_got;
2230 1.1 christos bfd_signed_vma *local_plt;
2231 1.1 christos bfd_signed_vma *end_local_plt;
2232 1.1 christos bfd_size_type locsymcount;
2233 1.1 christos Elf_Internal_Shdr *symtab_hdr;
2234 1.1 christos asection *srel;
2235 1.1 christos char *local_tls_type;
2236 1.1 christos
2237 1.1 christos if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2238 1.1 christos continue;
2239 1.1 christos
2240 1.1 christos for (sec = ibfd->sections; sec != NULL; sec = sec->next)
2241 1.1 christos {
2242 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
2243 1.1 christos
2244 1.1 christos for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2245 1.1 christos elf_section_data (sec)->local_dynrel);
2246 1.1 christos hdh_p != NULL;
2247 1.1 christos hdh_p = hdh_p->hdh_next)
2248 1.1 christos {
2249 1.1 christos if (!bfd_is_abs_section (hdh_p->sec)
2250 1.1 christos && bfd_is_abs_section (hdh_p->sec->output_section))
2251 1.1 christos {
2252 1.1 christos /* Input section has been discarded, either because
2253 1.1 christos it is a copy of a linkonce section or due to
2254 1.1 christos linker script /DISCARD/, so we'll be discarding
2255 1.1 christos the relocs too. */
2256 1.1 christos }
2257 1.1 christos else if (hdh_p->count != 0)
2258 1.1 christos {
2259 1.1 christos srel = elf_section_data (hdh_p->sec)->sreloc;
2260 1.1 christos srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2261 1.1 christos if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
2262 1.1 christos info->flags |= DF_TEXTREL;
2263 1.1 christos }
2264 1.1 christos }
2265 1.1 christos }
2266 1.1 christos
2267 1.1 christos local_got = elf_local_got_refcounts (ibfd);
2268 1.1 christos if (!local_got)
2269 1.1 christos continue;
2270 1.1 christos
2271 1.1 christos symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2272 1.1 christos locsymcount = symtab_hdr->sh_info;
2273 1.1 christos end_local_got = local_got + locsymcount;
2274 1.1 christos local_tls_type = hppa_elf_local_got_tls_type (ibfd);
2275 1.7 christos sec = htab->etab.sgot;
2276 1.7 christos srel = htab->etab.srelgot;
2277 1.1 christos for (; local_got < end_local_got; ++local_got)
2278 1.1 christos {
2279 1.1 christos if (*local_got > 0)
2280 1.1 christos {
2281 1.1 christos *local_got = sec->size;
2282 1.1 christos sec->size += GOT_ENTRY_SIZE;
2283 1.1 christos if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2284 1.1 christos sec->size += 2 * GOT_ENTRY_SIZE;
2285 1.1 christos else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2286 1.1 christos sec->size += GOT_ENTRY_SIZE;
2287 1.6 christos if (bfd_link_pic (info))
2288 1.1 christos {
2289 1.1 christos srel->size += sizeof (Elf32_External_Rela);
2290 1.1 christos if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2291 1.1 christos srel->size += 2 * sizeof (Elf32_External_Rela);
2292 1.1 christos else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2293 1.1 christos srel->size += sizeof (Elf32_External_Rela);
2294 1.1 christos }
2295 1.1 christos }
2296 1.1 christos else
2297 1.1 christos *local_got = (bfd_vma) -1;
2298 1.1 christos
2299 1.1 christos ++local_tls_type;
2300 1.1 christos }
2301 1.1 christos
2302 1.1 christos local_plt = end_local_got;
2303 1.1 christos end_local_plt = local_plt + locsymcount;
2304 1.1 christos if (! htab->etab.dynamic_sections_created)
2305 1.1 christos {
2306 1.1 christos /* Won't be used, but be safe. */
2307 1.1 christos for (; local_plt < end_local_plt; ++local_plt)
2308 1.1 christos *local_plt = (bfd_vma) -1;
2309 1.1 christos }
2310 1.1 christos else
2311 1.1 christos {
2312 1.7 christos sec = htab->etab.splt;
2313 1.7 christos srel = htab->etab.srelplt;
2314 1.1 christos for (; local_plt < end_local_plt; ++local_plt)
2315 1.1 christos {
2316 1.1 christos if (*local_plt > 0)
2317 1.1 christos {
2318 1.1 christos *local_plt = sec->size;
2319 1.1 christos sec->size += PLT_ENTRY_SIZE;
2320 1.6 christos if (bfd_link_pic (info))
2321 1.1 christos srel->size += sizeof (Elf32_External_Rela);
2322 1.1 christos }
2323 1.1 christos else
2324 1.1 christos *local_plt = (bfd_vma) -1;
2325 1.1 christos }
2326 1.1 christos }
2327 1.1 christos }
2328 1.1 christos
2329 1.1 christos if (htab->tls_ldm_got.refcount > 0)
2330 1.1 christos {
2331 1.1 christos /* Allocate 2 got entries and 1 dynamic reloc for
2332 1.1 christos R_PARISC_TLS_DTPMOD32 relocs. */
2333 1.7 christos htab->tls_ldm_got.offset = htab->etab.sgot->size;
2334 1.7 christos htab->etab.sgot->size += (GOT_ENTRY_SIZE * 2);
2335 1.7 christos htab->etab.srelgot->size += sizeof (Elf32_External_Rela);
2336 1.1 christos }
2337 1.1 christos else
2338 1.1 christos htab->tls_ldm_got.offset = -1;
2339 1.1 christos
2340 1.1 christos /* Do all the .plt entries without relocs first. The dynamic linker
2341 1.1 christos uses the last .plt reloc to find the end of the .plt (and hence
2342 1.1 christos the start of the .got) for lazy linking. */
2343 1.1 christos elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
2344 1.1 christos
2345 1.1 christos /* Allocate global sym .plt and .got entries, and space for global
2346 1.1 christos sym dynamic relocs. */
2347 1.1 christos elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
2348 1.1 christos
2349 1.1 christos /* The check_relocs and adjust_dynamic_symbol entry points have
2350 1.1 christos determined the sizes of the various dynamic sections. Allocate
2351 1.1 christos memory for them. */
2352 1.1 christos relocs = FALSE;
2353 1.1 christos for (sec = dynobj->sections; sec != NULL; sec = sec->next)
2354 1.1 christos {
2355 1.1 christos if ((sec->flags & SEC_LINKER_CREATED) == 0)
2356 1.1 christos continue;
2357 1.1 christos
2358 1.7 christos if (sec == htab->etab.splt)
2359 1.1 christos {
2360 1.1 christos if (htab->need_plt_stub)
2361 1.1 christos {
2362 1.1 christos /* Make space for the plt stub at the end of the .plt
2363 1.1 christos section. We want this stub right at the end, up
2364 1.1 christos against the .got section. */
2365 1.7 christos int gotalign = bfd_section_alignment (dynobj, htab->etab.sgot);
2366 1.1 christos int pltalign = bfd_section_alignment (dynobj, sec);
2367 1.1 christos bfd_size_type mask;
2368 1.1 christos
2369 1.1 christos if (gotalign > pltalign)
2370 1.1 christos (void) bfd_set_section_alignment (dynobj, sec, gotalign);
2371 1.1 christos mask = ((bfd_size_type) 1 << gotalign) - 1;
2372 1.1 christos sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
2373 1.1 christos }
2374 1.1 christos }
2375 1.7 christos else if (sec == htab->etab.sgot
2376 1.7 christos || sec == htab->etab.sdynbss
2377 1.7 christos || sec == htab->etab.sdynrelro)
2378 1.1 christos ;
2379 1.1 christos else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
2380 1.1 christos {
2381 1.1 christos if (sec->size != 0)
2382 1.1 christos {
2383 1.1 christos /* Remember whether there are any reloc sections other
2384 1.1 christos than .rela.plt. */
2385 1.7 christos if (sec != htab->etab.srelplt)
2386 1.1 christos relocs = TRUE;
2387 1.1 christos
2388 1.1 christos /* We use the reloc_count field as a counter if we need
2389 1.1 christos to copy relocs into the output file. */
2390 1.1 christos sec->reloc_count = 0;
2391 1.1 christos }
2392 1.1 christos }
2393 1.1 christos else
2394 1.1 christos {
2395 1.1 christos /* It's not one of our sections, so don't allocate space. */
2396 1.1 christos continue;
2397 1.1 christos }
2398 1.1 christos
2399 1.1 christos if (sec->size == 0)
2400 1.1 christos {
2401 1.1 christos /* If we don't need this section, strip it from the
2402 1.1 christos output file. This is mostly to handle .rela.bss and
2403 1.1 christos .rela.plt. We must create both sections in
2404 1.1 christos create_dynamic_sections, because they must be created
2405 1.1 christos before the linker maps input sections to output
2406 1.1 christos sections. The linker does that before
2407 1.1 christos adjust_dynamic_symbol is called, and it is that
2408 1.1 christos function which decides whether anything needs to go
2409 1.1 christos into these sections. */
2410 1.1 christos sec->flags |= SEC_EXCLUDE;
2411 1.1 christos continue;
2412 1.1 christos }
2413 1.1 christos
2414 1.1 christos if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2415 1.1 christos continue;
2416 1.1 christos
2417 1.1 christos /* Allocate memory for the section contents. Zero it, because
2418 1.1 christos we may not fill in all the reloc sections. */
2419 1.1 christos sec->contents = bfd_zalloc (dynobj, sec->size);
2420 1.1 christos if (sec->contents == NULL)
2421 1.1 christos return FALSE;
2422 1.1 christos }
2423 1.1 christos
2424 1.1 christos if (htab->etab.dynamic_sections_created)
2425 1.1 christos {
2426 1.1 christos /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2427 1.1 christos actually has nothing to do with the PLT, it is how we
2428 1.1 christos communicate the LTP value of a load module to the dynamic
2429 1.1 christos linker. */
2430 1.1 christos #define add_dynamic_entry(TAG, VAL) \
2431 1.1 christos _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2432 1.1 christos
2433 1.1 christos if (!add_dynamic_entry (DT_PLTGOT, 0))
2434 1.1 christos return FALSE;
2435 1.1 christos
2436 1.1 christos /* Add some entries to the .dynamic section. We fill in the
2437 1.1 christos values later, in elf32_hppa_finish_dynamic_sections, but we
2438 1.1 christos must add the entries now so that we get the correct size for
2439 1.1 christos the .dynamic section. The DT_DEBUG entry is filled in by the
2440 1.1 christos dynamic linker and used by the debugger. */
2441 1.6 christos if (bfd_link_executable (info))
2442 1.1 christos {
2443 1.1 christos if (!add_dynamic_entry (DT_DEBUG, 0))
2444 1.1 christos return FALSE;
2445 1.1 christos }
2446 1.1 christos
2447 1.7 christos if (htab->etab.srelplt->size != 0)
2448 1.1 christos {
2449 1.1 christos if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2450 1.1 christos || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2451 1.1 christos || !add_dynamic_entry (DT_JMPREL, 0))
2452 1.1 christos return FALSE;
2453 1.1 christos }
2454 1.1 christos
2455 1.1 christos if (relocs)
2456 1.1 christos {
2457 1.1 christos if (!add_dynamic_entry (DT_RELA, 0)
2458 1.1 christos || !add_dynamic_entry (DT_RELASZ, 0)
2459 1.1 christos || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
2460 1.1 christos return FALSE;
2461 1.1 christos
2462 1.1 christos /* If any dynamic relocs apply to a read-only section,
2463 1.1 christos then we need a DT_TEXTREL entry. */
2464 1.1 christos if ((info->flags & DF_TEXTREL) == 0)
2465 1.1 christos elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
2466 1.1 christos
2467 1.1 christos if ((info->flags & DF_TEXTREL) != 0)
2468 1.1 christos {
2469 1.1 christos if (!add_dynamic_entry (DT_TEXTREL, 0))
2470 1.1 christos return FALSE;
2471 1.1 christos }
2472 1.1 christos }
2473 1.1 christos }
2474 1.1 christos #undef add_dynamic_entry
2475 1.1 christos
2476 1.1 christos return TRUE;
2477 1.1 christos }
2478 1.1 christos
2479 1.1 christos /* External entry points for sizing and building linker stubs. */
2480 1.1 christos
2481 1.1 christos /* Set up various things so that we can make a list of input sections
2482 1.1 christos for each output section included in the link. Returns -1 on error,
2483 1.1 christos 0 when no stubs will be needed, and 1 on success. */
2484 1.1 christos
2485 1.1 christos int
2486 1.1 christos elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
2487 1.1 christos {
2488 1.1 christos bfd *input_bfd;
2489 1.1 christos unsigned int bfd_count;
2490 1.6 christos unsigned int top_id, top_index;
2491 1.1 christos asection *section;
2492 1.1 christos asection **input_list, **list;
2493 1.1 christos bfd_size_type amt;
2494 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2495 1.1 christos
2496 1.1 christos if (htab == NULL)
2497 1.1 christos return -1;
2498 1.1 christos
2499 1.1 christos /* Count the number of input BFDs and find the top input section id. */
2500 1.1 christos for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
2501 1.1 christos input_bfd != NULL;
2502 1.3 christos input_bfd = input_bfd->link.next)
2503 1.1 christos {
2504 1.1 christos bfd_count += 1;
2505 1.1 christos for (section = input_bfd->sections;
2506 1.1 christos section != NULL;
2507 1.1 christos section = section->next)
2508 1.1 christos {
2509 1.1 christos if (top_id < section->id)
2510 1.1 christos top_id = section->id;
2511 1.1 christos }
2512 1.1 christos }
2513 1.1 christos htab->bfd_count = bfd_count;
2514 1.1 christos
2515 1.1 christos amt = sizeof (struct map_stub) * (top_id + 1);
2516 1.1 christos htab->stub_group = bfd_zmalloc (amt);
2517 1.1 christos if (htab->stub_group == NULL)
2518 1.1 christos return -1;
2519 1.1 christos
2520 1.1 christos /* We can't use output_bfd->section_count here to find the top output
2521 1.1 christos section index as some sections may have been removed, and
2522 1.1 christos strip_excluded_output_sections doesn't renumber the indices. */
2523 1.1 christos for (section = output_bfd->sections, top_index = 0;
2524 1.1 christos section != NULL;
2525 1.1 christos section = section->next)
2526 1.1 christos {
2527 1.1 christos if (top_index < section->index)
2528 1.1 christos top_index = section->index;
2529 1.1 christos }
2530 1.1 christos
2531 1.1 christos htab->top_index = top_index;
2532 1.1 christos amt = sizeof (asection *) * (top_index + 1);
2533 1.1 christos input_list = bfd_malloc (amt);
2534 1.1 christos htab->input_list = input_list;
2535 1.1 christos if (input_list == NULL)
2536 1.1 christos return -1;
2537 1.1 christos
2538 1.1 christos /* For sections we aren't interested in, mark their entries with a
2539 1.1 christos value we can check later. */
2540 1.1 christos list = input_list + top_index;
2541 1.1 christos do
2542 1.1 christos *list = bfd_abs_section_ptr;
2543 1.1 christos while (list-- != input_list);
2544 1.1 christos
2545 1.1 christos for (section = output_bfd->sections;
2546 1.1 christos section != NULL;
2547 1.1 christos section = section->next)
2548 1.1 christos {
2549 1.1 christos if ((section->flags & SEC_CODE) != 0)
2550 1.1 christos input_list[section->index] = NULL;
2551 1.1 christos }
2552 1.1 christos
2553 1.1 christos return 1;
2554 1.1 christos }
2555 1.1 christos
2556 1.1 christos /* The linker repeatedly calls this function for each input section,
2557 1.1 christos in the order that input sections are linked into output sections.
2558 1.1 christos Build lists of input sections to determine groupings between which
2559 1.1 christos we may insert linker stubs. */
2560 1.1 christos
2561 1.1 christos void
2562 1.1 christos elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
2563 1.1 christos {
2564 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2565 1.1 christos
2566 1.1 christos if (htab == NULL)
2567 1.1 christos return;
2568 1.1 christos
2569 1.1 christos if (isec->output_section->index <= htab->top_index)
2570 1.1 christos {
2571 1.1 christos asection **list = htab->input_list + isec->output_section->index;
2572 1.1 christos if (*list != bfd_abs_section_ptr)
2573 1.1 christos {
2574 1.1 christos /* Steal the link_sec pointer for our list. */
2575 1.1 christos #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2576 1.1 christos /* This happens to make the list in reverse order,
2577 1.1 christos which is what we want. */
2578 1.1 christos PREV_SEC (isec) = *list;
2579 1.1 christos *list = isec;
2580 1.1 christos }
2581 1.1 christos }
2582 1.1 christos }
2583 1.1 christos
2584 1.1 christos /* See whether we can group stub sections together. Grouping stub
2585 1.1 christos sections may result in fewer stubs. More importantly, we need to
2586 1.1 christos put all .init* and .fini* stubs at the beginning of the .init or
2587 1.1 christos .fini output sections respectively, because glibc splits the
2588 1.1 christos _init and _fini functions into multiple parts. Putting a stub in
2589 1.1 christos the middle of a function is not a good idea. */
2590 1.1 christos
2591 1.1 christos static void
2592 1.1 christos group_sections (struct elf32_hppa_link_hash_table *htab,
2593 1.1 christos bfd_size_type stub_group_size,
2594 1.1 christos bfd_boolean stubs_always_before_branch)
2595 1.1 christos {
2596 1.1 christos asection **list = htab->input_list + htab->top_index;
2597 1.1 christos do
2598 1.1 christos {
2599 1.1 christos asection *tail = *list;
2600 1.1 christos if (tail == bfd_abs_section_ptr)
2601 1.1 christos continue;
2602 1.1 christos while (tail != NULL)
2603 1.1 christos {
2604 1.1 christos asection *curr;
2605 1.1 christos asection *prev;
2606 1.1 christos bfd_size_type total;
2607 1.1 christos bfd_boolean big_sec;
2608 1.1 christos
2609 1.1 christos curr = tail;
2610 1.1 christos total = tail->size;
2611 1.1 christos big_sec = total >= stub_group_size;
2612 1.1 christos
2613 1.1 christos while ((prev = PREV_SEC (curr)) != NULL
2614 1.1 christos && ((total += curr->output_offset - prev->output_offset)
2615 1.1 christos < stub_group_size))
2616 1.1 christos curr = prev;
2617 1.1 christos
2618 1.1 christos /* OK, the size from the start of CURR to the end is less
2619 1.1 christos than 240000 bytes and thus can be handled by one stub
2620 1.1 christos section. (or the tail section is itself larger than
2621 1.1 christos 240000 bytes, in which case we may be toast.)
2622 1.1 christos We should really be keeping track of the total size of
2623 1.1 christos stubs added here, as stubs contribute to the final output
2624 1.1 christos section size. That's a little tricky, and this way will
2625 1.1 christos only break if stubs added total more than 22144 bytes, or
2626 1.1 christos 2768 long branch stubs. It seems unlikely for more than
2627 1.1 christos 2768 different functions to be called, especially from
2628 1.1 christos code only 240000 bytes long. This limit used to be
2629 1.1 christos 250000, but c++ code tends to generate lots of little
2630 1.1 christos functions, and sometimes violated the assumption. */
2631 1.1 christos do
2632 1.1 christos {
2633 1.1 christos prev = PREV_SEC (tail);
2634 1.1 christos /* Set up this stub group. */
2635 1.1 christos htab->stub_group[tail->id].link_sec = curr;
2636 1.1 christos }
2637 1.1 christos while (tail != curr && (tail = prev) != NULL);
2638 1.1 christos
2639 1.1 christos /* But wait, there's more! Input sections up to 240000
2640 1.1 christos bytes before the stub section can be handled by it too.
2641 1.1 christos Don't do this if we have a really large section after the
2642 1.1 christos stubs, as adding more stubs increases the chance that
2643 1.1 christos branches may not reach into the stub section. */
2644 1.1 christos if (!stubs_always_before_branch && !big_sec)
2645 1.1 christos {
2646 1.1 christos total = 0;
2647 1.1 christos while (prev != NULL
2648 1.1 christos && ((total += tail->output_offset - prev->output_offset)
2649 1.1 christos < stub_group_size))
2650 1.1 christos {
2651 1.1 christos tail = prev;
2652 1.1 christos prev = PREV_SEC (tail);
2653 1.1 christos htab->stub_group[tail->id].link_sec = curr;
2654 1.1 christos }
2655 1.1 christos }
2656 1.1 christos tail = prev;
2657 1.1 christos }
2658 1.1 christos }
2659 1.1 christos while (list-- != htab->input_list);
2660 1.1 christos free (htab->input_list);
2661 1.1 christos #undef PREV_SEC
2662 1.1 christos }
2663 1.1 christos
2664 1.1 christos /* Read in all local syms for all input bfds, and create hash entries
2665 1.1 christos for export stubs if we are building a multi-subspace shared lib.
2666 1.1 christos Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2667 1.1 christos
2668 1.1 christos static int
2669 1.1 christos get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
2670 1.1 christos {
2671 1.1 christos unsigned int bfd_indx;
2672 1.1 christos Elf_Internal_Sym *local_syms, **all_local_syms;
2673 1.1 christos int stub_changed = 0;
2674 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2675 1.1 christos
2676 1.1 christos if (htab == NULL)
2677 1.1 christos return -1;
2678 1.1 christos
2679 1.1 christos /* We want to read in symbol extension records only once. To do this
2680 1.1 christos we need to read in the local symbols in parallel and save them for
2681 1.1 christos later use; so hold pointers to the local symbols in an array. */
2682 1.1 christos bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
2683 1.1 christos all_local_syms = bfd_zmalloc (amt);
2684 1.1 christos htab->all_local_syms = all_local_syms;
2685 1.1 christos if (all_local_syms == NULL)
2686 1.1 christos return -1;
2687 1.1 christos
2688 1.1 christos /* Walk over all the input BFDs, swapping in local symbols.
2689 1.1 christos If we are creating a shared library, create hash entries for the
2690 1.1 christos export stubs. */
2691 1.1 christos for (bfd_indx = 0;
2692 1.1 christos input_bfd != NULL;
2693 1.3 christos input_bfd = input_bfd->link.next, bfd_indx++)
2694 1.1 christos {
2695 1.1 christos Elf_Internal_Shdr *symtab_hdr;
2696 1.1 christos
2697 1.1 christos /* We'll need the symbol table in a second. */
2698 1.1 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2699 1.1 christos if (symtab_hdr->sh_info == 0)
2700 1.1 christos continue;
2701 1.1 christos
2702 1.1 christos /* We need an array of the local symbols attached to the input bfd. */
2703 1.1 christos local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
2704 1.1 christos if (local_syms == NULL)
2705 1.1 christos {
2706 1.1 christos local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2707 1.1 christos symtab_hdr->sh_info, 0,
2708 1.1 christos NULL, NULL, NULL);
2709 1.1 christos /* Cache them for elf_link_input_bfd. */
2710 1.1 christos symtab_hdr->contents = (unsigned char *) local_syms;
2711 1.1 christos }
2712 1.1 christos if (local_syms == NULL)
2713 1.1 christos return -1;
2714 1.1 christos
2715 1.1 christos all_local_syms[bfd_indx] = local_syms;
2716 1.1 christos
2717 1.6 christos if (bfd_link_pic (info) && htab->multi_subspace)
2718 1.1 christos {
2719 1.1 christos struct elf_link_hash_entry **eh_syms;
2720 1.1 christos struct elf_link_hash_entry **eh_symend;
2721 1.1 christos unsigned int symcount;
2722 1.1 christos
2723 1.1 christos symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2724 1.1 christos - symtab_hdr->sh_info);
2725 1.1 christos eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2726 1.1 christos eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
2727 1.1 christos
2728 1.1 christos /* Look through the global syms for functions; We need to
2729 1.1 christos build export stubs for all globally visible functions. */
2730 1.1 christos for (; eh_syms < eh_symend; eh_syms++)
2731 1.1 christos {
2732 1.1 christos struct elf32_hppa_link_hash_entry *hh;
2733 1.1 christos
2734 1.1 christos hh = hppa_elf_hash_entry (*eh_syms);
2735 1.1 christos
2736 1.1 christos while (hh->eh.root.type == bfd_link_hash_indirect
2737 1.1 christos || hh->eh.root.type == bfd_link_hash_warning)
2738 1.1 christos hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2739 1.1 christos
2740 1.1 christos /* At this point in the link, undefined syms have been
2741 1.1 christos resolved, so we need to check that the symbol was
2742 1.1 christos defined in this BFD. */
2743 1.1 christos if ((hh->eh.root.type == bfd_link_hash_defined
2744 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak)
2745 1.1 christos && hh->eh.type == STT_FUNC
2746 1.1 christos && hh->eh.root.u.def.section->output_section != NULL
2747 1.1 christos && (hh->eh.root.u.def.section->output_section->owner
2748 1.1 christos == output_bfd)
2749 1.1 christos && hh->eh.root.u.def.section->owner == input_bfd
2750 1.1 christos && hh->eh.def_regular
2751 1.1 christos && !hh->eh.forced_local
2752 1.1 christos && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
2753 1.1 christos {
2754 1.1 christos asection *sec;
2755 1.1 christos const char *stub_name;
2756 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
2757 1.1 christos
2758 1.1 christos sec = hh->eh.root.u.def.section;
2759 1.1 christos stub_name = hh_name (hh);
2760 1.1 christos hsh = hppa_stub_hash_lookup (&htab->bstab,
2761 1.1 christos stub_name,
2762 1.1 christos FALSE, FALSE);
2763 1.1 christos if (hsh == NULL)
2764 1.1 christos {
2765 1.1 christos hsh = hppa_add_stub (stub_name, sec, htab);
2766 1.1 christos if (!hsh)
2767 1.1 christos return -1;
2768 1.1 christos
2769 1.1 christos hsh->target_value = hh->eh.root.u.def.value;
2770 1.1 christos hsh->target_section = hh->eh.root.u.def.section;
2771 1.1 christos hsh->stub_type = hppa_stub_export;
2772 1.1 christos hsh->hh = hh;
2773 1.1 christos stub_changed = 1;
2774 1.1 christos }
2775 1.1 christos else
2776 1.1 christos {
2777 1.7 christos /* xgettext:c-format */
2778 1.7 christos _bfd_error_handler (_("%B: duplicate export stub %s"),
2779 1.7 christos input_bfd, stub_name);
2780 1.1 christos }
2781 1.1 christos }
2782 1.1 christos }
2783 1.1 christos }
2784 1.1 christos }
2785 1.1 christos
2786 1.1 christos return stub_changed;
2787 1.1 christos }
2788 1.1 christos
2789 1.1 christos /* Determine and set the size of the stub section for a final link.
2790 1.1 christos
2791 1.1 christos The basic idea here is to examine all the relocations looking for
2792 1.1 christos PC-relative calls to a target that is unreachable with a "bl"
2793 1.1 christos instruction. */
2794 1.1 christos
2795 1.1 christos bfd_boolean
2796 1.1 christos elf32_hppa_size_stubs
2797 1.1 christos (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2798 1.1 christos bfd_boolean multi_subspace, bfd_signed_vma group_size,
2799 1.1 christos asection * (*add_stub_section) (const char *, asection *),
2800 1.1 christos void (*layout_sections_again) (void))
2801 1.1 christos {
2802 1.1 christos bfd_size_type stub_group_size;
2803 1.1 christos bfd_boolean stubs_always_before_branch;
2804 1.1 christos bfd_boolean stub_changed;
2805 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2806 1.1 christos
2807 1.1 christos if (htab == NULL)
2808 1.1 christos return FALSE;
2809 1.1 christos
2810 1.1 christos /* Stash our params away. */
2811 1.1 christos htab->stub_bfd = stub_bfd;
2812 1.1 christos htab->multi_subspace = multi_subspace;
2813 1.1 christos htab->add_stub_section = add_stub_section;
2814 1.1 christos htab->layout_sections_again = layout_sections_again;
2815 1.1 christos stubs_always_before_branch = group_size < 0;
2816 1.1 christos if (group_size < 0)
2817 1.1 christos stub_group_size = -group_size;
2818 1.1 christos else
2819 1.1 christos stub_group_size = group_size;
2820 1.1 christos if (stub_group_size == 1)
2821 1.1 christos {
2822 1.1 christos /* Default values. */
2823 1.1 christos if (stubs_always_before_branch)
2824 1.1 christos {
2825 1.1 christos stub_group_size = 7680000;
2826 1.1 christos if (htab->has_17bit_branch || htab->multi_subspace)
2827 1.1 christos stub_group_size = 240000;
2828 1.1 christos if (htab->has_12bit_branch)
2829 1.1 christos stub_group_size = 7500;
2830 1.1 christos }
2831 1.1 christos else
2832 1.1 christos {
2833 1.1 christos stub_group_size = 6971392;
2834 1.1 christos if (htab->has_17bit_branch || htab->multi_subspace)
2835 1.1 christos stub_group_size = 217856;
2836 1.1 christos if (htab->has_12bit_branch)
2837 1.1 christos stub_group_size = 6808;
2838 1.1 christos }
2839 1.1 christos }
2840 1.1 christos
2841 1.1 christos group_sections (htab, stub_group_size, stubs_always_before_branch);
2842 1.1 christos
2843 1.1 christos switch (get_local_syms (output_bfd, info->input_bfds, info))
2844 1.1 christos {
2845 1.1 christos default:
2846 1.1 christos if (htab->all_local_syms)
2847 1.1 christos goto error_ret_free_local;
2848 1.1 christos return FALSE;
2849 1.1 christos
2850 1.1 christos case 0:
2851 1.1 christos stub_changed = FALSE;
2852 1.1 christos break;
2853 1.1 christos
2854 1.1 christos case 1:
2855 1.1 christos stub_changed = TRUE;
2856 1.1 christos break;
2857 1.1 christos }
2858 1.1 christos
2859 1.1 christos while (1)
2860 1.1 christos {
2861 1.1 christos bfd *input_bfd;
2862 1.1 christos unsigned int bfd_indx;
2863 1.1 christos asection *stub_sec;
2864 1.1 christos
2865 1.1 christos for (input_bfd = info->input_bfds, bfd_indx = 0;
2866 1.1 christos input_bfd != NULL;
2867 1.3 christos input_bfd = input_bfd->link.next, bfd_indx++)
2868 1.1 christos {
2869 1.1 christos Elf_Internal_Shdr *symtab_hdr;
2870 1.1 christos asection *section;
2871 1.1 christos Elf_Internal_Sym *local_syms;
2872 1.1 christos
2873 1.1 christos /* We'll need the symbol table in a second. */
2874 1.1 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2875 1.1 christos if (symtab_hdr->sh_info == 0)
2876 1.1 christos continue;
2877 1.1 christos
2878 1.1 christos local_syms = htab->all_local_syms[bfd_indx];
2879 1.1 christos
2880 1.1 christos /* Walk over each section attached to the input bfd. */
2881 1.1 christos for (section = input_bfd->sections;
2882 1.1 christos section != NULL;
2883 1.1 christos section = section->next)
2884 1.1 christos {
2885 1.1 christos Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2886 1.1 christos
2887 1.1 christos /* If there aren't any relocs, then there's nothing more
2888 1.1 christos to do. */
2889 1.1 christos if ((section->flags & SEC_RELOC) == 0
2890 1.1 christos || section->reloc_count == 0)
2891 1.1 christos continue;
2892 1.1 christos
2893 1.1 christos /* If this section is a link-once section that will be
2894 1.1 christos discarded, then don't create any stubs. */
2895 1.1 christos if (section->output_section == NULL
2896 1.1 christos || section->output_section->owner != output_bfd)
2897 1.1 christos continue;
2898 1.1 christos
2899 1.1 christos /* Get the relocs. */
2900 1.1 christos internal_relocs
2901 1.1 christos = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
2902 1.1 christos info->keep_memory);
2903 1.1 christos if (internal_relocs == NULL)
2904 1.1 christos goto error_ret_free_local;
2905 1.1 christos
2906 1.1 christos /* Now examine each relocation. */
2907 1.1 christos irela = internal_relocs;
2908 1.1 christos irelaend = irela + section->reloc_count;
2909 1.1 christos for (; irela < irelaend; irela++)
2910 1.1 christos {
2911 1.1 christos unsigned int r_type, r_indx;
2912 1.1 christos enum elf32_hppa_stub_type stub_type;
2913 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
2914 1.1 christos asection *sym_sec;
2915 1.1 christos bfd_vma sym_value;
2916 1.1 christos bfd_vma destination;
2917 1.1 christos struct elf32_hppa_link_hash_entry *hh;
2918 1.1 christos char *stub_name;
2919 1.1 christos const asection *id_sec;
2920 1.1 christos
2921 1.1 christos r_type = ELF32_R_TYPE (irela->r_info);
2922 1.1 christos r_indx = ELF32_R_SYM (irela->r_info);
2923 1.1 christos
2924 1.1 christos if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2925 1.1 christos {
2926 1.1 christos bfd_set_error (bfd_error_bad_value);
2927 1.1 christos error_ret_free_internal:
2928 1.1 christos if (elf_section_data (section)->relocs == NULL)
2929 1.1 christos free (internal_relocs);
2930 1.1 christos goto error_ret_free_local;
2931 1.1 christos }
2932 1.1 christos
2933 1.1 christos /* Only look for stubs on call instructions. */
2934 1.1 christos if (r_type != (unsigned int) R_PARISC_PCREL12F
2935 1.1 christos && r_type != (unsigned int) R_PARISC_PCREL17F
2936 1.1 christos && r_type != (unsigned int) R_PARISC_PCREL22F)
2937 1.1 christos continue;
2938 1.1 christos
2939 1.1 christos /* Now determine the call target, its name, value,
2940 1.1 christos section. */
2941 1.1 christos sym_sec = NULL;
2942 1.1 christos sym_value = 0;
2943 1.1 christos destination = 0;
2944 1.1 christos hh = NULL;
2945 1.1 christos if (r_indx < symtab_hdr->sh_info)
2946 1.1 christos {
2947 1.1 christos /* It's a local symbol. */
2948 1.1 christos Elf_Internal_Sym *sym;
2949 1.1 christos Elf_Internal_Shdr *hdr;
2950 1.1 christos unsigned int shndx;
2951 1.1 christos
2952 1.1 christos sym = local_syms + r_indx;
2953 1.1 christos if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2954 1.1 christos sym_value = sym->st_value;
2955 1.1 christos shndx = sym->st_shndx;
2956 1.1 christos if (shndx < elf_numsections (input_bfd))
2957 1.1 christos {
2958 1.1 christos hdr = elf_elfsections (input_bfd)[shndx];
2959 1.1 christos sym_sec = hdr->bfd_section;
2960 1.1 christos destination = (sym_value + irela->r_addend
2961 1.1 christos + sym_sec->output_offset
2962 1.1 christos + sym_sec->output_section->vma);
2963 1.1 christos }
2964 1.1 christos }
2965 1.1 christos else
2966 1.1 christos {
2967 1.1 christos /* It's an external symbol. */
2968 1.1 christos int e_indx;
2969 1.1 christos
2970 1.1 christos e_indx = r_indx - symtab_hdr->sh_info;
2971 1.1 christos hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
2972 1.1 christos
2973 1.1 christos while (hh->eh.root.type == bfd_link_hash_indirect
2974 1.1 christos || hh->eh.root.type == bfd_link_hash_warning)
2975 1.1 christos hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2976 1.1 christos
2977 1.1 christos if (hh->eh.root.type == bfd_link_hash_defined
2978 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak)
2979 1.1 christos {
2980 1.1 christos sym_sec = hh->eh.root.u.def.section;
2981 1.1 christos sym_value = hh->eh.root.u.def.value;
2982 1.1 christos if (sym_sec->output_section != NULL)
2983 1.1 christos destination = (sym_value + irela->r_addend
2984 1.1 christos + sym_sec->output_offset
2985 1.1 christos + sym_sec->output_section->vma);
2986 1.1 christos }
2987 1.1 christos else if (hh->eh.root.type == bfd_link_hash_undefweak)
2988 1.1 christos {
2989 1.6 christos if (! bfd_link_pic (info))
2990 1.1 christos continue;
2991 1.1 christos }
2992 1.1 christos else if (hh->eh.root.type == bfd_link_hash_undefined)
2993 1.1 christos {
2994 1.1 christos if (! (info->unresolved_syms_in_objects == RM_IGNORE
2995 1.1 christos && (ELF_ST_VISIBILITY (hh->eh.other)
2996 1.1 christos == STV_DEFAULT)
2997 1.1 christos && hh->eh.type != STT_PARISC_MILLI))
2998 1.1 christos continue;
2999 1.1 christos }
3000 1.1 christos else
3001 1.1 christos {
3002 1.1 christos bfd_set_error (bfd_error_bad_value);
3003 1.1 christos goto error_ret_free_internal;
3004 1.1 christos }
3005 1.1 christos }
3006 1.1 christos
3007 1.1 christos /* Determine what (if any) linker stub is needed. */
3008 1.1 christos stub_type = hppa_type_of_stub (section, irela, hh,
3009 1.1 christos destination, info);
3010 1.1 christos if (stub_type == hppa_stub_none)
3011 1.1 christos continue;
3012 1.1 christos
3013 1.1 christos /* Support for grouping stub sections. */
3014 1.1 christos id_sec = htab->stub_group[section->id].link_sec;
3015 1.1 christos
3016 1.1 christos /* Get the name of this stub. */
3017 1.1 christos stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
3018 1.1 christos if (!stub_name)
3019 1.1 christos goto error_ret_free_internal;
3020 1.1 christos
3021 1.1 christos hsh = hppa_stub_hash_lookup (&htab->bstab,
3022 1.1 christos stub_name,
3023 1.1 christos FALSE, FALSE);
3024 1.1 christos if (hsh != NULL)
3025 1.1 christos {
3026 1.1 christos /* The proper stub has already been created. */
3027 1.1 christos free (stub_name);
3028 1.1 christos continue;
3029 1.1 christos }
3030 1.1 christos
3031 1.1 christos hsh = hppa_add_stub (stub_name, section, htab);
3032 1.1 christos if (hsh == NULL)
3033 1.1 christos {
3034 1.1 christos free (stub_name);
3035 1.1 christos goto error_ret_free_internal;
3036 1.1 christos }
3037 1.1 christos
3038 1.1 christos hsh->target_value = sym_value;
3039 1.1 christos hsh->target_section = sym_sec;
3040 1.1 christos hsh->stub_type = stub_type;
3041 1.6 christos if (bfd_link_pic (info))
3042 1.1 christos {
3043 1.1 christos if (stub_type == hppa_stub_import)
3044 1.1 christos hsh->stub_type = hppa_stub_import_shared;
3045 1.1 christos else if (stub_type == hppa_stub_long_branch)
3046 1.1 christos hsh->stub_type = hppa_stub_long_branch_shared;
3047 1.1 christos }
3048 1.1 christos hsh->hh = hh;
3049 1.1 christos stub_changed = TRUE;
3050 1.1 christos }
3051 1.1 christos
3052 1.1 christos /* We're done with the internal relocs, free them. */
3053 1.1 christos if (elf_section_data (section)->relocs == NULL)
3054 1.1 christos free (internal_relocs);
3055 1.1 christos }
3056 1.1 christos }
3057 1.1 christos
3058 1.1 christos if (!stub_changed)
3059 1.1 christos break;
3060 1.1 christos
3061 1.1 christos /* OK, we've added some stubs. Find out the new size of the
3062 1.1 christos stub sections. */
3063 1.1 christos for (stub_sec = htab->stub_bfd->sections;
3064 1.1 christos stub_sec != NULL;
3065 1.1 christos stub_sec = stub_sec->next)
3066 1.6 christos if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
3067 1.6 christos stub_sec->size = 0;
3068 1.1 christos
3069 1.1 christos bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
3070 1.1 christos
3071 1.1 christos /* Ask the linker to do its stuff. */
3072 1.1 christos (*htab->layout_sections_again) ();
3073 1.1 christos stub_changed = FALSE;
3074 1.1 christos }
3075 1.1 christos
3076 1.1 christos free (htab->all_local_syms);
3077 1.1 christos return TRUE;
3078 1.1 christos
3079 1.1 christos error_ret_free_local:
3080 1.1 christos free (htab->all_local_syms);
3081 1.1 christos return FALSE;
3082 1.1 christos }
3083 1.1 christos
3084 1.1 christos /* For a final link, this function is called after we have sized the
3085 1.1 christos stubs to provide a value for __gp. */
3086 1.1 christos
3087 1.1 christos bfd_boolean
3088 1.1 christos elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
3089 1.1 christos {
3090 1.1 christos struct bfd_link_hash_entry *h;
3091 1.1 christos asection *sec = NULL;
3092 1.1 christos bfd_vma gp_val = 0;
3093 1.1 christos struct elf32_hppa_link_hash_table *htab;
3094 1.1 christos
3095 1.1 christos htab = hppa_link_hash_table (info);
3096 1.1 christos if (htab == NULL)
3097 1.1 christos return FALSE;
3098 1.1 christos
3099 1.1 christos h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
3100 1.1 christos
3101 1.1 christos if (h != NULL
3102 1.1 christos && (h->type == bfd_link_hash_defined
3103 1.1 christos || h->type == bfd_link_hash_defweak))
3104 1.1 christos {
3105 1.1 christos gp_val = h->u.def.value;
3106 1.1 christos sec = h->u.def.section;
3107 1.1 christos }
3108 1.1 christos else
3109 1.1 christos {
3110 1.1 christos asection *splt = bfd_get_section_by_name (abfd, ".plt");
3111 1.1 christos asection *sgot = bfd_get_section_by_name (abfd, ".got");
3112 1.1 christos
3113 1.1 christos /* Choose to point our LTP at, in this order, one of .plt, .got,
3114 1.1 christos or .data, if these sections exist. In the case of choosing
3115 1.1 christos .plt try to make the LTP ideal for addressing anywhere in the
3116 1.1 christos .plt or .got with a 14 bit signed offset. Typically, the end
3117 1.1 christos of the .plt is the start of the .got, so choose .plt + 0x2000
3118 1.1 christos if either the .plt or .got is larger than 0x2000. If both
3119 1.1 christos the .plt and .got are smaller than 0x2000, choose the end of
3120 1.1 christos the .plt section. */
3121 1.1 christos sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3122 1.1 christos ? NULL : splt;
3123 1.1 christos if (sec != NULL)
3124 1.1 christos {
3125 1.1 christos gp_val = sec->size;
3126 1.1 christos if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
3127 1.1 christos {
3128 1.1 christos gp_val = 0x2000;
3129 1.1 christos }
3130 1.1 christos }
3131 1.1 christos else
3132 1.1 christos {
3133 1.1 christos sec = sgot;
3134 1.1 christos if (sec != NULL)
3135 1.1 christos {
3136 1.1 christos if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3137 1.1 christos {
3138 1.1 christos /* We know we don't have a .plt. If .got is large,
3139 1.1 christos offset our LTP. */
3140 1.1 christos if (sec->size > 0x2000)
3141 1.1 christos gp_val = 0x2000;
3142 1.1 christos }
3143 1.1 christos }
3144 1.1 christos else
3145 1.1 christos {
3146 1.1 christos /* No .plt or .got. Who cares what the LTP is? */
3147 1.1 christos sec = bfd_get_section_by_name (abfd, ".data");
3148 1.1 christos }
3149 1.1 christos }
3150 1.1 christos
3151 1.1 christos if (h != NULL)
3152 1.1 christos {
3153 1.1 christos h->type = bfd_link_hash_defined;
3154 1.1 christos h->u.def.value = gp_val;
3155 1.1 christos if (sec != NULL)
3156 1.1 christos h->u.def.section = sec;
3157 1.1 christos else
3158 1.1 christos h->u.def.section = bfd_abs_section_ptr;
3159 1.1 christos }
3160 1.1 christos }
3161 1.1 christos
3162 1.1 christos if (sec != NULL && sec->output_section != NULL)
3163 1.1 christos gp_val += sec->output_section->vma + sec->output_offset;
3164 1.1 christos
3165 1.1 christos elf_gp (abfd) = gp_val;
3166 1.1 christos return TRUE;
3167 1.1 christos }
3168 1.1 christos
3169 1.1 christos /* Build all the stubs associated with the current output file. The
3170 1.1 christos stubs are kept in a hash table attached to the main linker hash
3171 1.1 christos table. We also set up the .plt entries for statically linked PIC
3172 1.1 christos functions here. This function is called via hppaelf_finish in the
3173 1.1 christos linker. */
3174 1.1 christos
3175 1.1 christos bfd_boolean
3176 1.1 christos elf32_hppa_build_stubs (struct bfd_link_info *info)
3177 1.1 christos {
3178 1.1 christos asection *stub_sec;
3179 1.1 christos struct bfd_hash_table *table;
3180 1.1 christos struct elf32_hppa_link_hash_table *htab;
3181 1.1 christos
3182 1.1 christos htab = hppa_link_hash_table (info);
3183 1.1 christos if (htab == NULL)
3184 1.1 christos return FALSE;
3185 1.1 christos
3186 1.1 christos for (stub_sec = htab->stub_bfd->sections;
3187 1.1 christos stub_sec != NULL;
3188 1.1 christos stub_sec = stub_sec->next)
3189 1.6 christos if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3190 1.6 christos && stub_sec->size != 0)
3191 1.6 christos {
3192 1.6 christos /* Allocate memory to hold the linker stubs. */
3193 1.6 christos stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3194 1.6 christos if (stub_sec->contents == NULL)
3195 1.6 christos return FALSE;
3196 1.6 christos stub_sec->size = 0;
3197 1.6 christos }
3198 1.1 christos
3199 1.1 christos /* Build the stubs as directed by the stub hash table. */
3200 1.1 christos table = &htab->bstab;
3201 1.1 christos bfd_hash_traverse (table, hppa_build_one_stub, info);
3202 1.1 christos
3203 1.1 christos return TRUE;
3204 1.1 christos }
3205 1.1 christos
3206 1.1 christos /* Return the base vma address which should be subtracted from the real
3207 1.1 christos address when resolving a dtpoff relocation.
3208 1.1 christos This is PT_TLS segment p_vaddr. */
3209 1.1 christos
3210 1.1 christos static bfd_vma
3211 1.1 christos dtpoff_base (struct bfd_link_info *info)
3212 1.1 christos {
3213 1.1 christos /* If tls_sec is NULL, we should have signalled an error already. */
3214 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
3215 1.1 christos return 0;
3216 1.1 christos return elf_hash_table (info)->tls_sec->vma;
3217 1.1 christos }
3218 1.1 christos
3219 1.1 christos /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3220 1.1 christos
3221 1.1 christos static bfd_vma
3222 1.1 christos tpoff (struct bfd_link_info *info, bfd_vma address)
3223 1.1 christos {
3224 1.1 christos struct elf_link_hash_table *htab = elf_hash_table (info);
3225 1.1 christos
3226 1.1 christos /* If tls_sec is NULL, we should have signalled an error already. */
3227 1.1 christos if (htab->tls_sec == NULL)
3228 1.1 christos return 0;
3229 1.1 christos /* hppa TLS ABI is variant I and static TLS block start just after
3230 1.1 christos tcbhead structure which has 2 pointer fields. */
3231 1.1 christos return (address - htab->tls_sec->vma
3232 1.1 christos + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3233 1.1 christos }
3234 1.1 christos
3235 1.1 christos /* Perform a final link. */
3236 1.1 christos
3237 1.1 christos static bfd_boolean
3238 1.1 christos elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
3239 1.1 christos {
3240 1.6 christos struct stat buf;
3241 1.6 christos
3242 1.1 christos /* Invoke the regular ELF linker to do all the work. */
3243 1.1 christos if (!bfd_elf_final_link (abfd, info))
3244 1.1 christos return FALSE;
3245 1.1 christos
3246 1.1 christos /* If we're producing a final executable, sort the contents of the
3247 1.1 christos unwind section. */
3248 1.6 christos if (bfd_link_relocatable (info))
3249 1.6 christos return TRUE;
3250 1.6 christos
3251 1.6 christos /* Do not attempt to sort non-regular files. This is here
3252 1.6 christos especially for configure scripts and kernel builds which run
3253 1.6 christos tests with "ld [...] -o /dev/null". */
3254 1.6 christos if (stat (abfd->filename, &buf) != 0
3255 1.6 christos || !S_ISREG(buf.st_mode))
3256 1.1 christos return TRUE;
3257 1.1 christos
3258 1.1 christos return elf_hppa_sort_unwind (abfd);
3259 1.1 christos }
3260 1.1 christos
3261 1.1 christos /* Record the lowest address for the data and text segments. */
3262 1.1 christos
3263 1.1 christos static void
3264 1.1 christos hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
3265 1.1 christos {
3266 1.1 christos struct elf32_hppa_link_hash_table *htab;
3267 1.1 christos
3268 1.1 christos htab = (struct elf32_hppa_link_hash_table*) data;
3269 1.1 christos if (htab == NULL)
3270 1.1 christos return;
3271 1.1 christos
3272 1.1 christos if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3273 1.1 christos {
3274 1.1 christos bfd_vma value;
3275 1.1 christos Elf_Internal_Phdr *p;
3276 1.1 christos
3277 1.1 christos p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3278 1.1 christos BFD_ASSERT (p != NULL);
3279 1.1 christos value = p->p_vaddr;
3280 1.1 christos
3281 1.1 christos if ((section->flags & SEC_READONLY) != 0)
3282 1.1 christos {
3283 1.1 christos if (value < htab->text_segment_base)
3284 1.1 christos htab->text_segment_base = value;
3285 1.1 christos }
3286 1.1 christos else
3287 1.1 christos {
3288 1.1 christos if (value < htab->data_segment_base)
3289 1.1 christos htab->data_segment_base = value;
3290 1.1 christos }
3291 1.1 christos }
3292 1.1 christos }
3293 1.1 christos
3294 1.1 christos /* Perform a relocation as part of a final link. */
3295 1.1 christos
3296 1.1 christos static bfd_reloc_status_type
3297 1.1 christos final_link_relocate (asection *input_section,
3298 1.1 christos bfd_byte *contents,
3299 1.1 christos const Elf_Internal_Rela *rela,
3300 1.1 christos bfd_vma value,
3301 1.1 christos struct elf32_hppa_link_hash_table *htab,
3302 1.1 christos asection *sym_sec,
3303 1.1 christos struct elf32_hppa_link_hash_entry *hh,
3304 1.1 christos struct bfd_link_info *info)
3305 1.1 christos {
3306 1.1 christos int insn;
3307 1.1 christos unsigned int r_type = ELF32_R_TYPE (rela->r_info);
3308 1.1 christos unsigned int orig_r_type = r_type;
3309 1.1 christos reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3310 1.1 christos int r_format = howto->bitsize;
3311 1.1 christos enum hppa_reloc_field_selector_type_alt r_field;
3312 1.1 christos bfd *input_bfd = input_section->owner;
3313 1.1 christos bfd_vma offset = rela->r_offset;
3314 1.1 christos bfd_vma max_branch_offset = 0;
3315 1.1 christos bfd_byte *hit_data = contents + offset;
3316 1.1 christos bfd_signed_vma addend = rela->r_addend;
3317 1.1 christos bfd_vma location;
3318 1.1 christos struct elf32_hppa_stub_hash_entry *hsh = NULL;
3319 1.1 christos int val;
3320 1.1 christos
3321 1.1 christos if (r_type == R_PARISC_NONE)
3322 1.1 christos return bfd_reloc_ok;
3323 1.1 christos
3324 1.1 christos insn = bfd_get_32 (input_bfd, hit_data);
3325 1.1 christos
3326 1.1 christos /* Find out where we are and where we're going. */
3327 1.1 christos location = (offset +
3328 1.1 christos input_section->output_offset +
3329 1.1 christos input_section->output_section->vma);
3330 1.1 christos
3331 1.1 christos /* If we are not building a shared library, convert DLTIND relocs to
3332 1.1 christos DPREL relocs. */
3333 1.6 christos if (!bfd_link_pic (info))
3334 1.1 christos {
3335 1.1 christos switch (r_type)
3336 1.1 christos {
3337 1.1 christos case R_PARISC_DLTIND21L:
3338 1.1 christos case R_PARISC_TLS_GD21L:
3339 1.1 christos case R_PARISC_TLS_LDM21L:
3340 1.1 christos case R_PARISC_TLS_IE21L:
3341 1.1 christos r_type = R_PARISC_DPREL21L;
3342 1.1 christos break;
3343 1.1 christos
3344 1.1 christos case R_PARISC_DLTIND14R:
3345 1.1 christos case R_PARISC_TLS_GD14R:
3346 1.1 christos case R_PARISC_TLS_LDM14R:
3347 1.1 christos case R_PARISC_TLS_IE14R:
3348 1.1 christos r_type = R_PARISC_DPREL14R;
3349 1.1 christos break;
3350 1.1 christos
3351 1.1 christos case R_PARISC_DLTIND14F:
3352 1.1 christos r_type = R_PARISC_DPREL14F;
3353 1.1 christos break;
3354 1.1 christos }
3355 1.1 christos }
3356 1.1 christos
3357 1.1 christos switch (r_type)
3358 1.1 christos {
3359 1.1 christos case R_PARISC_PCREL12F:
3360 1.1 christos case R_PARISC_PCREL17F:
3361 1.1 christos case R_PARISC_PCREL22F:
3362 1.1 christos /* If this call should go via the plt, find the import stub in
3363 1.1 christos the stub hash. */
3364 1.1 christos if (sym_sec == NULL
3365 1.1 christos || sym_sec->output_section == NULL
3366 1.1 christos || (hh != NULL
3367 1.1 christos && hh->eh.plt.offset != (bfd_vma) -1
3368 1.1 christos && hh->eh.dynindx != -1
3369 1.1 christos && !hh->plabel
3370 1.6 christos && (bfd_link_pic (info)
3371 1.1 christos || !hh->eh.def_regular
3372 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak)))
3373 1.1 christos {
3374 1.1 christos hsh = hppa_get_stub_entry (input_section, sym_sec,
3375 1.1 christos hh, rela, htab);
3376 1.1 christos if (hsh != NULL)
3377 1.1 christos {
3378 1.1 christos value = (hsh->stub_offset
3379 1.1 christos + hsh->stub_sec->output_offset
3380 1.1 christos + hsh->stub_sec->output_section->vma);
3381 1.1 christos addend = 0;
3382 1.1 christos }
3383 1.1 christos else if (sym_sec == NULL && hh != NULL
3384 1.1 christos && hh->eh.root.type == bfd_link_hash_undefweak)
3385 1.1 christos {
3386 1.1 christos /* It's OK if undefined weak. Calls to undefined weak
3387 1.1 christos symbols behave as if the "called" function
3388 1.1 christos immediately returns. We can thus call to a weak
3389 1.1 christos function without first checking whether the function
3390 1.1 christos is defined. */
3391 1.1 christos value = location;
3392 1.1 christos addend = 8;
3393 1.1 christos }
3394 1.1 christos else
3395 1.1 christos return bfd_reloc_undefined;
3396 1.1 christos }
3397 1.1 christos /* Fall thru. */
3398 1.1 christos
3399 1.1 christos case R_PARISC_PCREL21L:
3400 1.1 christos case R_PARISC_PCREL17C:
3401 1.1 christos case R_PARISC_PCREL17R:
3402 1.1 christos case R_PARISC_PCREL14R:
3403 1.1 christos case R_PARISC_PCREL14F:
3404 1.1 christos case R_PARISC_PCREL32:
3405 1.1 christos /* Make it a pc relative offset. */
3406 1.1 christos value -= location;
3407 1.1 christos addend -= 8;
3408 1.1 christos break;
3409 1.1 christos
3410 1.1 christos case R_PARISC_DPREL21L:
3411 1.1 christos case R_PARISC_DPREL14R:
3412 1.1 christos case R_PARISC_DPREL14F:
3413 1.1 christos /* Convert instructions that use the linkage table pointer (r19) to
3414 1.1 christos instructions that use the global data pointer (dp). This is the
3415 1.1 christos most efficient way of using PIC code in an incomplete executable,
3416 1.1 christos but the user must follow the standard runtime conventions for
3417 1.1 christos accessing data for this to work. */
3418 1.1 christos if (orig_r_type != r_type)
3419 1.1 christos {
3420 1.1 christos if (r_type == R_PARISC_DPREL21L)
3421 1.1 christos {
3422 1.1 christos /* GCC sometimes uses a register other than r19 for the
3423 1.1 christos operation, so we must convert any addil instruction
3424 1.1 christos that uses this relocation. */
3425 1.1 christos if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3426 1.1 christos insn = ADDIL_DP;
3427 1.1 christos else
3428 1.1 christos /* We must have a ldil instruction. It's too hard to find
3429 1.1 christos and convert the associated add instruction, so issue an
3430 1.1 christos error. */
3431 1.7 christos _bfd_error_handler
3432 1.7 christos /* xgettext:c-format */
3433 1.1 christos (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3434 1.1 christos input_bfd,
3435 1.1 christos input_section,
3436 1.1 christos (long) offset,
3437 1.1 christos howto->name,
3438 1.1 christos insn);
3439 1.1 christos }
3440 1.1 christos else if (r_type == R_PARISC_DPREL14F)
3441 1.1 christos {
3442 1.1 christos /* This must be a format 1 load/store. Change the base
3443 1.1 christos register to dp. */
3444 1.1 christos insn = (insn & 0xfc1ffff) | (27 << 21);
3445 1.1 christos }
3446 1.1 christos }
3447 1.1 christos
3448 1.1 christos /* For all the DP relative relocations, we need to examine the symbol's
3449 1.1 christos section. If it has no section or if it's a code section, then
3450 1.1 christos "data pointer relative" makes no sense. In that case we don't
3451 1.1 christos adjust the "value", and for 21 bit addil instructions, we change the
3452 1.1 christos source addend register from %dp to %r0. This situation commonly
3453 1.1 christos arises for undefined weak symbols and when a variable's "constness"
3454 1.1 christos is declared differently from the way the variable is defined. For
3455 1.1 christos instance: "extern int foo" with foo defined as "const int foo". */
3456 1.1 christos if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
3457 1.1 christos {
3458 1.1 christos if ((insn & ((0x3f << 26) | (0x1f << 21)))
3459 1.1 christos == (((int) OP_ADDIL << 26) | (27 << 21)))
3460 1.1 christos {
3461 1.1 christos insn &= ~ (0x1f << 21);
3462 1.1 christos }
3463 1.1 christos /* Now try to make things easy for the dynamic linker. */
3464 1.1 christos
3465 1.1 christos break;
3466 1.1 christos }
3467 1.1 christos /* Fall thru. */
3468 1.1 christos
3469 1.1 christos case R_PARISC_DLTIND21L:
3470 1.1 christos case R_PARISC_DLTIND14R:
3471 1.1 christos case R_PARISC_DLTIND14F:
3472 1.1 christos case R_PARISC_TLS_GD21L:
3473 1.1 christos case R_PARISC_TLS_LDM21L:
3474 1.1 christos case R_PARISC_TLS_IE21L:
3475 1.1 christos case R_PARISC_TLS_GD14R:
3476 1.1 christos case R_PARISC_TLS_LDM14R:
3477 1.1 christos case R_PARISC_TLS_IE14R:
3478 1.1 christos value -= elf_gp (input_section->output_section->owner);
3479 1.1 christos break;
3480 1.1 christos
3481 1.1 christos case R_PARISC_SEGREL32:
3482 1.1 christos if ((sym_sec->flags & SEC_CODE) != 0)
3483 1.1 christos value -= htab->text_segment_base;
3484 1.1 christos else
3485 1.1 christos value -= htab->data_segment_base;
3486 1.1 christos break;
3487 1.1 christos
3488 1.1 christos default:
3489 1.1 christos break;
3490 1.1 christos }
3491 1.1 christos
3492 1.1 christos switch (r_type)
3493 1.1 christos {
3494 1.1 christos case R_PARISC_DIR32:
3495 1.1 christos case R_PARISC_DIR14F:
3496 1.1 christos case R_PARISC_DIR17F:
3497 1.1 christos case R_PARISC_PCREL17C:
3498 1.1 christos case R_PARISC_PCREL14F:
3499 1.1 christos case R_PARISC_PCREL32:
3500 1.1 christos case R_PARISC_DPREL14F:
3501 1.1 christos case R_PARISC_PLABEL32:
3502 1.1 christos case R_PARISC_DLTIND14F:
3503 1.1 christos case R_PARISC_SEGBASE:
3504 1.1 christos case R_PARISC_SEGREL32:
3505 1.1 christos case R_PARISC_TLS_DTPMOD32:
3506 1.1 christos case R_PARISC_TLS_DTPOFF32:
3507 1.1 christos case R_PARISC_TLS_TPREL32:
3508 1.1 christos r_field = e_fsel;
3509 1.1 christos break;
3510 1.1 christos
3511 1.1 christos case R_PARISC_DLTIND21L:
3512 1.1 christos case R_PARISC_PCREL21L:
3513 1.1 christos case R_PARISC_PLABEL21L:
3514 1.1 christos r_field = e_lsel;
3515 1.1 christos break;
3516 1.1 christos
3517 1.1 christos case R_PARISC_DIR21L:
3518 1.1 christos case R_PARISC_DPREL21L:
3519 1.1 christos case R_PARISC_TLS_GD21L:
3520 1.1 christos case R_PARISC_TLS_LDM21L:
3521 1.1 christos case R_PARISC_TLS_LDO21L:
3522 1.1 christos case R_PARISC_TLS_IE21L:
3523 1.1 christos case R_PARISC_TLS_LE21L:
3524 1.1 christos r_field = e_lrsel;
3525 1.1 christos break;
3526 1.1 christos
3527 1.1 christos case R_PARISC_PCREL17R:
3528 1.1 christos case R_PARISC_PCREL14R:
3529 1.1 christos case R_PARISC_PLABEL14R:
3530 1.1 christos case R_PARISC_DLTIND14R:
3531 1.1 christos r_field = e_rsel;
3532 1.1 christos break;
3533 1.1 christos
3534 1.1 christos case R_PARISC_DIR17R:
3535 1.1 christos case R_PARISC_DIR14R:
3536 1.1 christos case R_PARISC_DPREL14R:
3537 1.1 christos case R_PARISC_TLS_GD14R:
3538 1.1 christos case R_PARISC_TLS_LDM14R:
3539 1.1 christos case R_PARISC_TLS_LDO14R:
3540 1.1 christos case R_PARISC_TLS_IE14R:
3541 1.1 christos case R_PARISC_TLS_LE14R:
3542 1.1 christos r_field = e_rrsel;
3543 1.1 christos break;
3544 1.1 christos
3545 1.1 christos case R_PARISC_PCREL12F:
3546 1.1 christos case R_PARISC_PCREL17F:
3547 1.1 christos case R_PARISC_PCREL22F:
3548 1.1 christos r_field = e_fsel;
3549 1.1 christos
3550 1.1 christos if (r_type == (unsigned int) R_PARISC_PCREL17F)
3551 1.1 christos {
3552 1.1 christos max_branch_offset = (1 << (17-1)) << 2;
3553 1.1 christos }
3554 1.1 christos else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3555 1.1 christos {
3556 1.1 christos max_branch_offset = (1 << (12-1)) << 2;
3557 1.1 christos }
3558 1.1 christos else
3559 1.1 christos {
3560 1.1 christos max_branch_offset = (1 << (22-1)) << 2;
3561 1.1 christos }
3562 1.1 christos
3563 1.1 christos /* sym_sec is NULL on undefined weak syms or when shared on
3564 1.1 christos undefined syms. We've already checked for a stub for the
3565 1.1 christos shared undefined case. */
3566 1.1 christos if (sym_sec == NULL)
3567 1.1 christos break;
3568 1.1 christos
3569 1.1 christos /* If the branch is out of reach, then redirect the
3570 1.1 christos call to the local stub for this function. */
3571 1.1 christos if (value + addend + max_branch_offset >= 2*max_branch_offset)
3572 1.1 christos {
3573 1.1 christos hsh = hppa_get_stub_entry (input_section, sym_sec,
3574 1.1 christos hh, rela, htab);
3575 1.1 christos if (hsh == NULL)
3576 1.1 christos return bfd_reloc_undefined;
3577 1.1 christos
3578 1.1 christos /* Munge up the value and addend so that we call the stub
3579 1.1 christos rather than the procedure directly. */
3580 1.1 christos value = (hsh->stub_offset
3581 1.1 christos + hsh->stub_sec->output_offset
3582 1.1 christos + hsh->stub_sec->output_section->vma
3583 1.1 christos - location);
3584 1.1 christos addend = -8;
3585 1.1 christos }
3586 1.1 christos break;
3587 1.1 christos
3588 1.1 christos /* Something we don't know how to handle. */
3589 1.1 christos default:
3590 1.1 christos return bfd_reloc_notsupported;
3591 1.1 christos }
3592 1.1 christos
3593 1.1 christos /* Make sure we can reach the stub. */
3594 1.1 christos if (max_branch_offset != 0
3595 1.1 christos && value + addend + max_branch_offset >= 2*max_branch_offset)
3596 1.1 christos {
3597 1.7 christos _bfd_error_handler
3598 1.7 christos /* xgettext:c-format */
3599 1.1 christos (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3600 1.1 christos input_bfd,
3601 1.1 christos input_section,
3602 1.1 christos (long) offset,
3603 1.1 christos hsh->bh_root.string);
3604 1.1 christos bfd_set_error (bfd_error_bad_value);
3605 1.1 christos return bfd_reloc_notsupported;
3606 1.1 christos }
3607 1.1 christos
3608 1.1 christos val = hppa_field_adjust (value, addend, r_field);
3609 1.1 christos
3610 1.1 christos switch (r_type)
3611 1.1 christos {
3612 1.1 christos case R_PARISC_PCREL12F:
3613 1.1 christos case R_PARISC_PCREL17C:
3614 1.1 christos case R_PARISC_PCREL17F:
3615 1.1 christos case R_PARISC_PCREL17R:
3616 1.1 christos case R_PARISC_PCREL22F:
3617 1.1 christos case R_PARISC_DIR17F:
3618 1.1 christos case R_PARISC_DIR17R:
3619 1.1 christos /* This is a branch. Divide the offset by four.
3620 1.1 christos Note that we need to decide whether it's a branch or
3621 1.1 christos otherwise by inspecting the reloc. Inspecting insn won't
3622 1.1 christos work as insn might be from a .word directive. */
3623 1.1 christos val >>= 2;
3624 1.1 christos break;
3625 1.1 christos
3626 1.1 christos default:
3627 1.1 christos break;
3628 1.1 christos }
3629 1.1 christos
3630 1.1 christos insn = hppa_rebuild_insn (insn, val, r_format);
3631 1.1 christos
3632 1.1 christos /* Update the instruction word. */
3633 1.1 christos bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
3634 1.1 christos return bfd_reloc_ok;
3635 1.1 christos }
3636 1.1 christos
3637 1.1 christos /* Relocate an HPPA ELF section. */
3638 1.1 christos
3639 1.1 christos static bfd_boolean
3640 1.1 christos elf32_hppa_relocate_section (bfd *output_bfd,
3641 1.1 christos struct bfd_link_info *info,
3642 1.1 christos bfd *input_bfd,
3643 1.1 christos asection *input_section,
3644 1.1 christos bfd_byte *contents,
3645 1.1 christos Elf_Internal_Rela *relocs,
3646 1.1 christos Elf_Internal_Sym *local_syms,
3647 1.1 christos asection **local_sections)
3648 1.1 christos {
3649 1.1 christos bfd_vma *local_got_offsets;
3650 1.1 christos struct elf32_hppa_link_hash_table *htab;
3651 1.1 christos Elf_Internal_Shdr *symtab_hdr;
3652 1.1 christos Elf_Internal_Rela *rela;
3653 1.1 christos Elf_Internal_Rela *relend;
3654 1.1 christos
3655 1.1 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3656 1.1 christos
3657 1.1 christos htab = hppa_link_hash_table (info);
3658 1.1 christos if (htab == NULL)
3659 1.1 christos return FALSE;
3660 1.1 christos
3661 1.1 christos local_got_offsets = elf_local_got_offsets (input_bfd);
3662 1.1 christos
3663 1.1 christos rela = relocs;
3664 1.1 christos relend = relocs + input_section->reloc_count;
3665 1.1 christos for (; rela < relend; rela++)
3666 1.1 christos {
3667 1.1 christos unsigned int r_type;
3668 1.1 christos reloc_howto_type *howto;
3669 1.1 christos unsigned int r_symndx;
3670 1.1 christos struct elf32_hppa_link_hash_entry *hh;
3671 1.1 christos Elf_Internal_Sym *sym;
3672 1.1 christos asection *sym_sec;
3673 1.1 christos bfd_vma relocation;
3674 1.1 christos bfd_reloc_status_type rstatus;
3675 1.1 christos const char *sym_name;
3676 1.1 christos bfd_boolean plabel;
3677 1.1 christos bfd_boolean warned_undef;
3678 1.1 christos
3679 1.1 christos r_type = ELF32_R_TYPE (rela->r_info);
3680 1.1 christos if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3681 1.1 christos {
3682 1.1 christos bfd_set_error (bfd_error_bad_value);
3683 1.1 christos return FALSE;
3684 1.1 christos }
3685 1.1 christos if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3686 1.1 christos || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3687 1.1 christos continue;
3688 1.1 christos
3689 1.1 christos r_symndx = ELF32_R_SYM (rela->r_info);
3690 1.1 christos hh = NULL;
3691 1.1 christos sym = NULL;
3692 1.1 christos sym_sec = NULL;
3693 1.1 christos warned_undef = FALSE;
3694 1.1 christos if (r_symndx < symtab_hdr->sh_info)
3695 1.1 christos {
3696 1.1 christos /* This is a local symbol, h defaults to NULL. */
3697 1.1 christos sym = local_syms + r_symndx;
3698 1.1 christos sym_sec = local_sections[r_symndx];
3699 1.1 christos relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
3700 1.1 christos }
3701 1.1 christos else
3702 1.1 christos {
3703 1.1 christos struct elf_link_hash_entry *eh;
3704 1.1 christos bfd_boolean unresolved_reloc, ignored;
3705 1.1 christos struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3706 1.1 christos
3707 1.1 christos RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
3708 1.1 christos r_symndx, symtab_hdr, sym_hashes,
3709 1.1 christos eh, sym_sec, relocation,
3710 1.1 christos unresolved_reloc, warned_undef,
3711 1.1 christos ignored);
3712 1.1 christos
3713 1.6 christos if (!bfd_link_relocatable (info)
3714 1.1 christos && relocation == 0
3715 1.1 christos && eh->root.type != bfd_link_hash_defined
3716 1.1 christos && eh->root.type != bfd_link_hash_defweak
3717 1.1 christos && eh->root.type != bfd_link_hash_undefweak)
3718 1.1 christos {
3719 1.1 christos if (info->unresolved_syms_in_objects == RM_IGNORE
3720 1.1 christos && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3721 1.1 christos && eh->type == STT_PARISC_MILLI)
3722 1.1 christos {
3723 1.6 christos (*info->callbacks->undefined_symbol)
3724 1.6 christos (info, eh_name (eh), input_bfd,
3725 1.6 christos input_section, rela->r_offset, FALSE);
3726 1.1 christos warned_undef = TRUE;
3727 1.1 christos }
3728 1.1 christos }
3729 1.1 christos hh = hppa_elf_hash_entry (eh);
3730 1.1 christos }
3731 1.1 christos
3732 1.1 christos if (sym_sec != NULL && discarded_section (sym_sec))
3733 1.1 christos RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3734 1.1 christos rela, 1, relend,
3735 1.1 christos elf_hppa_howto_table + r_type, 0,
3736 1.1 christos contents);
3737 1.1 christos
3738 1.6 christos if (bfd_link_relocatable (info))
3739 1.1 christos continue;
3740 1.1 christos
3741 1.1 christos /* Do any required modifications to the relocation value, and
3742 1.1 christos determine what types of dynamic info we need to output, if
3743 1.1 christos any. */
3744 1.1 christos plabel = 0;
3745 1.1 christos switch (r_type)
3746 1.1 christos {
3747 1.1 christos case R_PARISC_DLTIND14F:
3748 1.1 christos case R_PARISC_DLTIND14R:
3749 1.1 christos case R_PARISC_DLTIND21L:
3750 1.1 christos {
3751 1.1 christos bfd_vma off;
3752 1.1 christos bfd_boolean do_got = 0;
3753 1.1 christos
3754 1.1 christos /* Relocation is to the entry for this symbol in the
3755 1.1 christos global offset table. */
3756 1.1 christos if (hh != NULL)
3757 1.1 christos {
3758 1.1 christos bfd_boolean dyn;
3759 1.1 christos
3760 1.1 christos off = hh->eh.got.offset;
3761 1.1 christos dyn = htab->etab.dynamic_sections_created;
3762 1.6 christos if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3763 1.6 christos bfd_link_pic (info),
3764 1.1 christos &hh->eh))
3765 1.1 christos {
3766 1.1 christos /* If we aren't going to call finish_dynamic_symbol,
3767 1.1 christos then we need to handle initialisation of the .got
3768 1.1 christos entry and create needed relocs here. Since the
3769 1.1 christos offset must always be a multiple of 4, we use the
3770 1.1 christos least significant bit to record whether we have
3771 1.1 christos initialised it already. */
3772 1.1 christos if ((off & 1) != 0)
3773 1.1 christos off &= ~1;
3774 1.1 christos else
3775 1.1 christos {
3776 1.1 christos hh->eh.got.offset |= 1;
3777 1.1 christos do_got = 1;
3778 1.1 christos }
3779 1.1 christos }
3780 1.1 christos }
3781 1.1 christos else
3782 1.1 christos {
3783 1.1 christos /* Local symbol case. */
3784 1.1 christos if (local_got_offsets == NULL)
3785 1.1 christos abort ();
3786 1.1 christos
3787 1.1 christos off = local_got_offsets[r_symndx];
3788 1.1 christos
3789 1.1 christos /* The offset must always be a multiple of 4. We use
3790 1.1 christos the least significant bit to record whether we have
3791 1.1 christos already generated the necessary reloc. */
3792 1.1 christos if ((off & 1) != 0)
3793 1.1 christos off &= ~1;
3794 1.1 christos else
3795 1.1 christos {
3796 1.1 christos local_got_offsets[r_symndx] |= 1;
3797 1.1 christos do_got = 1;
3798 1.1 christos }
3799 1.1 christos }
3800 1.1 christos
3801 1.1 christos if (do_got)
3802 1.1 christos {
3803 1.6 christos if (bfd_link_pic (info))
3804 1.1 christos {
3805 1.1 christos /* Output a dynamic relocation for this GOT entry.
3806 1.1 christos In this case it is relative to the base of the
3807 1.1 christos object because the symbol index is zero. */
3808 1.1 christos Elf_Internal_Rela outrel;
3809 1.1 christos bfd_byte *loc;
3810 1.7 christos asection *sec = htab->etab.srelgot;
3811 1.1 christos
3812 1.1 christos outrel.r_offset = (off
3813 1.7 christos + htab->etab.sgot->output_offset
3814 1.7 christos + htab->etab.sgot->output_section->vma);
3815 1.1 christos outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3816 1.1 christos outrel.r_addend = relocation;
3817 1.1 christos loc = sec->contents;
3818 1.1 christos loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
3819 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3820 1.1 christos }
3821 1.1 christos else
3822 1.1 christos bfd_put_32 (output_bfd, relocation,
3823 1.7 christos htab->etab.sgot->contents + off);
3824 1.1 christos }
3825 1.1 christos
3826 1.1 christos if (off >= (bfd_vma) -2)
3827 1.1 christos abort ();
3828 1.1 christos
3829 1.1 christos /* Add the base of the GOT to the relocation value. */
3830 1.1 christos relocation = (off
3831 1.7 christos + htab->etab.sgot->output_offset
3832 1.7 christos + htab->etab.sgot->output_section->vma);
3833 1.1 christos }
3834 1.1 christos break;
3835 1.1 christos
3836 1.1 christos case R_PARISC_SEGREL32:
3837 1.1 christos /* If this is the first SEGREL relocation, then initialize
3838 1.1 christos the segment base values. */
3839 1.1 christos if (htab->text_segment_base == (bfd_vma) -1)
3840 1.1 christos bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
3841 1.1 christos break;
3842 1.1 christos
3843 1.1 christos case R_PARISC_PLABEL14R:
3844 1.1 christos case R_PARISC_PLABEL21L:
3845 1.1 christos case R_PARISC_PLABEL32:
3846 1.1 christos if (htab->etab.dynamic_sections_created)
3847 1.1 christos {
3848 1.1 christos bfd_vma off;
3849 1.1 christos bfd_boolean do_plt = 0;
3850 1.1 christos /* If we have a global symbol with a PLT slot, then
3851 1.1 christos redirect this relocation to it. */
3852 1.1 christos if (hh != NULL)
3853 1.1 christos {
3854 1.1 christos off = hh->eh.plt.offset;
3855 1.6 christos if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3856 1.6 christos bfd_link_pic (info),
3857 1.1 christos &hh->eh))
3858 1.1 christos {
3859 1.1 christos /* In a non-shared link, adjust_dynamic_symbols
3860 1.1 christos isn't called for symbols forced local. We
3861 1.1 christos need to write out the plt entry here. */
3862 1.1 christos if ((off & 1) != 0)
3863 1.1 christos off &= ~1;
3864 1.1 christos else
3865 1.1 christos {
3866 1.1 christos hh->eh.plt.offset |= 1;
3867 1.1 christos do_plt = 1;
3868 1.1 christos }
3869 1.1 christos }
3870 1.1 christos }
3871 1.1 christos else
3872 1.1 christos {
3873 1.1 christos bfd_vma *local_plt_offsets;
3874 1.1 christos
3875 1.1 christos if (local_got_offsets == NULL)
3876 1.1 christos abort ();
3877 1.1 christos
3878 1.1 christos local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3879 1.1 christos off = local_plt_offsets[r_symndx];
3880 1.1 christos
3881 1.1 christos /* As for the local .got entry case, we use the last
3882 1.1 christos bit to record whether we've already initialised
3883 1.1 christos this local .plt entry. */
3884 1.1 christos if ((off & 1) != 0)
3885 1.1 christos off &= ~1;
3886 1.1 christos else
3887 1.1 christos {
3888 1.1 christos local_plt_offsets[r_symndx] |= 1;
3889 1.1 christos do_plt = 1;
3890 1.1 christos }
3891 1.1 christos }
3892 1.1 christos
3893 1.1 christos if (do_plt)
3894 1.1 christos {
3895 1.6 christos if (bfd_link_pic (info))
3896 1.1 christos {
3897 1.1 christos /* Output a dynamic IPLT relocation for this
3898 1.1 christos PLT entry. */
3899 1.1 christos Elf_Internal_Rela outrel;
3900 1.1 christos bfd_byte *loc;
3901 1.7 christos asection *s = htab->etab.srelplt;
3902 1.1 christos
3903 1.1 christos outrel.r_offset = (off
3904 1.7 christos + htab->etab.splt->output_offset
3905 1.7 christos + htab->etab.splt->output_section->vma);
3906 1.1 christos outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3907 1.1 christos outrel.r_addend = relocation;
3908 1.1 christos loc = s->contents;
3909 1.1 christos loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
3910 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3911 1.1 christos }
3912 1.1 christos else
3913 1.1 christos {
3914 1.1 christos bfd_put_32 (output_bfd,
3915 1.1 christos relocation,
3916 1.7 christos htab->etab.splt->contents + off);
3917 1.1 christos bfd_put_32 (output_bfd,
3918 1.7 christos elf_gp (htab->etab.splt->output_section->owner),
3919 1.7 christos htab->etab.splt->contents + off + 4);
3920 1.1 christos }
3921 1.1 christos }
3922 1.1 christos
3923 1.1 christos if (off >= (bfd_vma) -2)
3924 1.1 christos abort ();
3925 1.1 christos
3926 1.1 christos /* PLABELs contain function pointers. Relocation is to
3927 1.1 christos the entry for the function in the .plt. The magic +2
3928 1.1 christos offset signals to $$dyncall that the function pointer
3929 1.1 christos is in the .plt and thus has a gp pointer too.
3930 1.1 christos Exception: Undefined PLABELs should have a value of
3931 1.1 christos zero. */
3932 1.1 christos if (hh == NULL
3933 1.1 christos || (hh->eh.root.type != bfd_link_hash_undefweak
3934 1.1 christos && hh->eh.root.type != bfd_link_hash_undefined))
3935 1.1 christos {
3936 1.1 christos relocation = (off
3937 1.7 christos + htab->etab.splt->output_offset
3938 1.7 christos + htab->etab.splt->output_section->vma
3939 1.1 christos + 2);
3940 1.1 christos }
3941 1.1 christos plabel = 1;
3942 1.1 christos }
3943 1.7 christos /* Fall through. */
3944 1.1 christos
3945 1.1 christos case R_PARISC_DIR17F:
3946 1.1 christos case R_PARISC_DIR17R:
3947 1.1 christos case R_PARISC_DIR14F:
3948 1.1 christos case R_PARISC_DIR14R:
3949 1.1 christos case R_PARISC_DIR21L:
3950 1.1 christos case R_PARISC_DPREL14F:
3951 1.1 christos case R_PARISC_DPREL14R:
3952 1.1 christos case R_PARISC_DPREL21L:
3953 1.1 christos case R_PARISC_DIR32:
3954 1.1 christos if ((input_section->flags & SEC_ALLOC) == 0)
3955 1.1 christos break;
3956 1.1 christos
3957 1.1 christos /* The reloc types handled here and this conditional
3958 1.1 christos expression must match the code in ..check_relocs and
3959 1.1 christos allocate_dynrelocs. ie. We need exactly the same condition
3960 1.1 christos as in ..check_relocs, with some extra conditions (dynindx
3961 1.1 christos test in this case) to cater for relocs removed by
3962 1.1 christos allocate_dynrelocs. If you squint, the non-shared test
3963 1.1 christos here does indeed match the one in ..check_relocs, the
3964 1.1 christos difference being that here we test DEF_DYNAMIC as well as
3965 1.1 christos !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3966 1.1 christos which is why we can't use just that test here.
3967 1.1 christos Conversely, DEF_DYNAMIC can't be used in check_relocs as
3968 1.1 christos there all files have not been loaded. */
3969 1.6 christos if ((bfd_link_pic (info)
3970 1.1 christos && (hh == NULL
3971 1.1 christos || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3972 1.1 christos || hh->eh.root.type != bfd_link_hash_undefweak)
3973 1.1 christos && (IS_ABSOLUTE_RELOC (r_type)
3974 1.1 christos || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
3975 1.6 christos || (!bfd_link_pic (info)
3976 1.1 christos && hh != NULL
3977 1.1 christos && hh->eh.dynindx != -1
3978 1.1 christos && !hh->eh.non_got_ref
3979 1.1 christos && ((ELIMINATE_COPY_RELOCS
3980 1.1 christos && hh->eh.def_dynamic
3981 1.1 christos && !hh->eh.def_regular)
3982 1.1 christos || hh->eh.root.type == bfd_link_hash_undefweak
3983 1.1 christos || hh->eh.root.type == bfd_link_hash_undefined)))
3984 1.1 christos {
3985 1.1 christos Elf_Internal_Rela outrel;
3986 1.1 christos bfd_boolean skip;
3987 1.1 christos asection *sreloc;
3988 1.1 christos bfd_byte *loc;
3989 1.1 christos
3990 1.1 christos /* When generating a shared object, these relocations
3991 1.1 christos are copied into the output file to be resolved at run
3992 1.1 christos time. */
3993 1.1 christos
3994 1.1 christos outrel.r_addend = rela->r_addend;
3995 1.1 christos outrel.r_offset =
3996 1.1 christos _bfd_elf_section_offset (output_bfd, info, input_section,
3997 1.1 christos rela->r_offset);
3998 1.1 christos skip = (outrel.r_offset == (bfd_vma) -1
3999 1.1 christos || outrel.r_offset == (bfd_vma) -2);
4000 1.1 christos outrel.r_offset += (input_section->output_offset
4001 1.1 christos + input_section->output_section->vma);
4002 1.1 christos
4003 1.1 christos if (skip)
4004 1.1 christos {
4005 1.1 christos memset (&outrel, 0, sizeof (outrel));
4006 1.1 christos }
4007 1.1 christos else if (hh != NULL
4008 1.1 christos && hh->eh.dynindx != -1
4009 1.1 christos && (plabel
4010 1.1 christos || !IS_ABSOLUTE_RELOC (r_type)
4011 1.6 christos || !bfd_link_pic (info)
4012 1.6 christos || !SYMBOLIC_BIND (info, &hh->eh)
4013 1.1 christos || !hh->eh.def_regular))
4014 1.1 christos {
4015 1.1 christos outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
4016 1.1 christos }
4017 1.1 christos else /* It's a local symbol, or one marked to become local. */
4018 1.1 christos {
4019 1.1 christos int indx = 0;
4020 1.1 christos
4021 1.1 christos /* Add the absolute offset of the symbol. */
4022 1.1 christos outrel.r_addend += relocation;
4023 1.1 christos
4024 1.1 christos /* Global plabels need to be processed by the
4025 1.1 christos dynamic linker so that functions have at most one
4026 1.1 christos fptr. For this reason, we need to differentiate
4027 1.1 christos between global and local plabels, which we do by
4028 1.1 christos providing the function symbol for a global plabel
4029 1.1 christos reloc, and no symbol for local plabels. */
4030 1.1 christos if (! plabel
4031 1.1 christos && sym_sec != NULL
4032 1.1 christos && sym_sec->output_section != NULL
4033 1.1 christos && ! bfd_is_abs_section (sym_sec))
4034 1.1 christos {
4035 1.1 christos asection *osec;
4036 1.1 christos
4037 1.1 christos osec = sym_sec->output_section;
4038 1.1 christos indx = elf_section_data (osec)->dynindx;
4039 1.1 christos if (indx == 0)
4040 1.1 christos {
4041 1.1 christos osec = htab->etab.text_index_section;
4042 1.1 christos indx = elf_section_data (osec)->dynindx;
4043 1.1 christos }
4044 1.1 christos BFD_ASSERT (indx != 0);
4045 1.1 christos
4046 1.1 christos /* We are turning this relocation into one
4047 1.1 christos against a section symbol, so subtract out the
4048 1.1 christos output section's address but not the offset
4049 1.1 christos of the input section in the output section. */
4050 1.1 christos outrel.r_addend -= osec->vma;
4051 1.1 christos }
4052 1.1 christos
4053 1.1 christos outrel.r_info = ELF32_R_INFO (indx, r_type);
4054 1.1 christos }
4055 1.1 christos sreloc = elf_section_data (input_section)->sreloc;
4056 1.1 christos if (sreloc == NULL)
4057 1.1 christos abort ();
4058 1.1 christos
4059 1.1 christos loc = sreloc->contents;
4060 1.1 christos loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
4061 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4062 1.1 christos }
4063 1.1 christos break;
4064 1.1 christos
4065 1.1 christos case R_PARISC_TLS_LDM21L:
4066 1.1 christos case R_PARISC_TLS_LDM14R:
4067 1.1 christos {
4068 1.1 christos bfd_vma off;
4069 1.1 christos
4070 1.1 christos off = htab->tls_ldm_got.offset;
4071 1.1 christos if (off & 1)
4072 1.1 christos off &= ~1;
4073 1.1 christos else
4074 1.1 christos {
4075 1.1 christos Elf_Internal_Rela outrel;
4076 1.1 christos bfd_byte *loc;
4077 1.1 christos
4078 1.1 christos outrel.r_offset = (off
4079 1.7 christos + htab->etab.sgot->output_section->vma
4080 1.7 christos + htab->etab.sgot->output_offset);
4081 1.1 christos outrel.r_addend = 0;
4082 1.1 christos outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
4083 1.7 christos loc = htab->etab.srelgot->contents;
4084 1.7 christos loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4085 1.1 christos
4086 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4087 1.1 christos htab->tls_ldm_got.offset |= 1;
4088 1.1 christos }
4089 1.1 christos
4090 1.1 christos /* Add the base of the GOT to the relocation value. */
4091 1.1 christos relocation = (off
4092 1.7 christos + htab->etab.sgot->output_offset
4093 1.7 christos + htab->etab.sgot->output_section->vma);
4094 1.1 christos
4095 1.1 christos break;
4096 1.1 christos }
4097 1.1 christos
4098 1.1 christos case R_PARISC_TLS_LDO21L:
4099 1.1 christos case R_PARISC_TLS_LDO14R:
4100 1.1 christos relocation -= dtpoff_base (info);
4101 1.1 christos break;
4102 1.1 christos
4103 1.1 christos case R_PARISC_TLS_GD21L:
4104 1.1 christos case R_PARISC_TLS_GD14R:
4105 1.1 christos case R_PARISC_TLS_IE21L:
4106 1.1 christos case R_PARISC_TLS_IE14R:
4107 1.1 christos {
4108 1.1 christos bfd_vma off;
4109 1.1 christos int indx;
4110 1.1 christos char tls_type;
4111 1.1 christos
4112 1.1 christos indx = 0;
4113 1.1 christos if (hh != NULL)
4114 1.1 christos {
4115 1.1 christos bfd_boolean dyn;
4116 1.1 christos dyn = htab->etab.dynamic_sections_created;
4117 1.1 christos
4118 1.6 christos if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4119 1.6 christos bfd_link_pic (info),
4120 1.6 christos &hh->eh)
4121 1.6 christos && (!bfd_link_pic (info)
4122 1.1 christos || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4123 1.1 christos {
4124 1.1 christos indx = hh->eh.dynindx;
4125 1.1 christos }
4126 1.1 christos off = hh->eh.got.offset;
4127 1.1 christos tls_type = hh->tls_type;
4128 1.1 christos }
4129 1.1 christos else
4130 1.1 christos {
4131 1.1 christos off = local_got_offsets[r_symndx];
4132 1.1 christos tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4133 1.1 christos }
4134 1.1 christos
4135 1.1 christos if (tls_type == GOT_UNKNOWN)
4136 1.1 christos abort ();
4137 1.1 christos
4138 1.1 christos if ((off & 1) != 0)
4139 1.1 christos off &= ~1;
4140 1.1 christos else
4141 1.1 christos {
4142 1.1 christos bfd_boolean need_relocs = FALSE;
4143 1.1 christos Elf_Internal_Rela outrel;
4144 1.1 christos bfd_byte *loc = NULL;
4145 1.1 christos int cur_off = off;
4146 1.1 christos
4147 1.1 christos /* The GOT entries have not been initialized yet. Do it
4148 1.1 christos now, and emit any relocations. If both an IE GOT and a
4149 1.1 christos GD GOT are necessary, we emit the GD first. */
4150 1.1 christos
4151 1.6 christos if ((bfd_link_pic (info) || indx != 0)
4152 1.1 christos && (hh == NULL
4153 1.1 christos || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4154 1.1 christos || hh->eh.root.type != bfd_link_hash_undefweak))
4155 1.1 christos {
4156 1.1 christos need_relocs = TRUE;
4157 1.7 christos loc = htab->etab.srelgot->contents;
4158 1.1 christos /* FIXME (CAO): Should this be reloc_count++ ? */
4159 1.7 christos loc += htab->etab.srelgot->reloc_count * sizeof (Elf32_External_Rela);
4160 1.1 christos }
4161 1.1 christos
4162 1.1 christos if (tls_type & GOT_TLS_GD)
4163 1.1 christos {
4164 1.1 christos if (need_relocs)
4165 1.1 christos {
4166 1.1 christos outrel.r_offset = (cur_off
4167 1.7 christos + htab->etab.sgot->output_section->vma
4168 1.7 christos + htab->etab.sgot->output_offset);
4169 1.1 christos outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4170 1.1 christos outrel.r_addend = 0;
4171 1.7 christos bfd_put_32 (output_bfd, 0, htab->etab.sgot->contents + cur_off);
4172 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4173 1.7 christos htab->etab.srelgot->reloc_count++;
4174 1.1 christos loc += sizeof (Elf32_External_Rela);
4175 1.1 christos
4176 1.1 christos if (indx == 0)
4177 1.1 christos bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4178 1.7 christos htab->etab.sgot->contents + cur_off + 4);
4179 1.1 christos else
4180 1.1 christos {
4181 1.1 christos bfd_put_32 (output_bfd, 0,
4182 1.7 christos htab->etab.sgot->contents + cur_off + 4);
4183 1.1 christos outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4184 1.1 christos outrel.r_offset += 4;
4185 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4186 1.7 christos htab->etab.srelgot->reloc_count++;
4187 1.1 christos loc += sizeof (Elf32_External_Rela);
4188 1.1 christos }
4189 1.1 christos }
4190 1.1 christos else
4191 1.1 christos {
4192 1.1 christos /* If we are not emitting relocations for a
4193 1.1 christos general dynamic reference, then we must be in a
4194 1.1 christos static link or an executable link with the
4195 1.1 christos symbol binding locally. Mark it as belonging
4196 1.1 christos to module 1, the executable. */
4197 1.1 christos bfd_put_32 (output_bfd, 1,
4198 1.7 christos htab->etab.sgot->contents + cur_off);
4199 1.1 christos bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4200 1.7 christos htab->etab.sgot->contents + cur_off + 4);
4201 1.1 christos }
4202 1.1 christos
4203 1.1 christos
4204 1.1 christos cur_off += 8;
4205 1.1 christos }
4206 1.1 christos
4207 1.1 christos if (tls_type & GOT_TLS_IE)
4208 1.1 christos {
4209 1.1 christos if (need_relocs)
4210 1.1 christos {
4211 1.1 christos outrel.r_offset = (cur_off
4212 1.7 christos + htab->etab.sgot->output_section->vma
4213 1.7 christos + htab->etab.sgot->output_offset);
4214 1.1 christos outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4215 1.1 christos
4216 1.1 christos if (indx == 0)
4217 1.1 christos outrel.r_addend = relocation - dtpoff_base (info);
4218 1.1 christos else
4219 1.1 christos outrel.r_addend = 0;
4220 1.1 christos
4221 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4222 1.7 christos htab->etab.srelgot->reloc_count++;
4223 1.1 christos loc += sizeof (Elf32_External_Rela);
4224 1.1 christos }
4225 1.1 christos else
4226 1.1 christos bfd_put_32 (output_bfd, tpoff (info, relocation),
4227 1.7 christos htab->etab.sgot->contents + cur_off);
4228 1.1 christos
4229 1.1 christos cur_off += 4;
4230 1.1 christos }
4231 1.1 christos
4232 1.1 christos if (hh != NULL)
4233 1.1 christos hh->eh.got.offset |= 1;
4234 1.1 christos else
4235 1.1 christos local_got_offsets[r_symndx] |= 1;
4236 1.1 christos }
4237 1.1 christos
4238 1.1 christos if ((tls_type & GOT_TLS_GD)
4239 1.1 christos && r_type != R_PARISC_TLS_GD21L
4240 1.1 christos && r_type != R_PARISC_TLS_GD14R)
4241 1.1 christos off += 2 * GOT_ENTRY_SIZE;
4242 1.1 christos
4243 1.1 christos /* Add the base of the GOT to the relocation value. */
4244 1.1 christos relocation = (off
4245 1.7 christos + htab->etab.sgot->output_offset
4246 1.7 christos + htab->etab.sgot->output_section->vma);
4247 1.1 christos
4248 1.1 christos break;
4249 1.1 christos }
4250 1.1 christos
4251 1.1 christos case R_PARISC_TLS_LE21L:
4252 1.1 christos case R_PARISC_TLS_LE14R:
4253 1.1 christos {
4254 1.1 christos relocation = tpoff (info, relocation);
4255 1.1 christos break;
4256 1.1 christos }
4257 1.1 christos break;
4258 1.1 christos
4259 1.1 christos default:
4260 1.1 christos break;
4261 1.1 christos }
4262 1.1 christos
4263 1.1 christos rstatus = final_link_relocate (input_section, contents, rela, relocation,
4264 1.1 christos htab, sym_sec, hh, info);
4265 1.1 christos
4266 1.1 christos if (rstatus == bfd_reloc_ok)
4267 1.1 christos continue;
4268 1.1 christos
4269 1.1 christos if (hh != NULL)
4270 1.1 christos sym_name = hh_name (hh);
4271 1.1 christos else
4272 1.1 christos {
4273 1.1 christos sym_name = bfd_elf_string_from_elf_section (input_bfd,
4274 1.1 christos symtab_hdr->sh_link,
4275 1.1 christos sym->st_name);
4276 1.1 christos if (sym_name == NULL)
4277 1.1 christos return FALSE;
4278 1.1 christos if (*sym_name == '\0')
4279 1.1 christos sym_name = bfd_section_name (input_bfd, sym_sec);
4280 1.1 christos }
4281 1.1 christos
4282 1.1 christos howto = elf_hppa_howto_table + r_type;
4283 1.1 christos
4284 1.1 christos if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
4285 1.1 christos {
4286 1.1 christos if (rstatus == bfd_reloc_notsupported || !warned_undef)
4287 1.1 christos {
4288 1.7 christos _bfd_error_handler
4289 1.7 christos /* xgettext:c-format */
4290 1.1 christos (_("%B(%A+0x%lx): cannot handle %s for %s"),
4291 1.1 christos input_bfd,
4292 1.1 christos input_section,
4293 1.1 christos (long) rela->r_offset,
4294 1.1 christos howto->name,
4295 1.1 christos sym_name);
4296 1.1 christos bfd_set_error (bfd_error_bad_value);
4297 1.1 christos return FALSE;
4298 1.1 christos }
4299 1.1 christos }
4300 1.1 christos else
4301 1.6 christos (*info->callbacks->reloc_overflow)
4302 1.6 christos (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4303 1.6 christos (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
4304 1.1 christos }
4305 1.1 christos
4306 1.1 christos return TRUE;
4307 1.1 christos }
4308 1.1 christos
4309 1.1 christos /* Finish up dynamic symbol handling. We set the contents of various
4310 1.1 christos dynamic sections here. */
4311 1.1 christos
4312 1.1 christos static bfd_boolean
4313 1.1 christos elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4314 1.1 christos struct bfd_link_info *info,
4315 1.1 christos struct elf_link_hash_entry *eh,
4316 1.1 christos Elf_Internal_Sym *sym)
4317 1.1 christos {
4318 1.1 christos struct elf32_hppa_link_hash_table *htab;
4319 1.1 christos Elf_Internal_Rela rela;
4320 1.1 christos bfd_byte *loc;
4321 1.1 christos
4322 1.1 christos htab = hppa_link_hash_table (info);
4323 1.1 christos if (htab == NULL)
4324 1.1 christos return FALSE;
4325 1.1 christos
4326 1.1 christos if (eh->plt.offset != (bfd_vma) -1)
4327 1.1 christos {
4328 1.1 christos bfd_vma value;
4329 1.1 christos
4330 1.1 christos if (eh->plt.offset & 1)
4331 1.1 christos abort ();
4332 1.1 christos
4333 1.1 christos /* This symbol has an entry in the procedure linkage table. Set
4334 1.1 christos it up.
4335 1.1 christos
4336 1.1 christos The format of a plt entry is
4337 1.1 christos <funcaddr>
4338 1.1 christos <__gp>
4339 1.1 christos */
4340 1.1 christos value = 0;
4341 1.1 christos if (eh->root.type == bfd_link_hash_defined
4342 1.1 christos || eh->root.type == bfd_link_hash_defweak)
4343 1.1 christos {
4344 1.1 christos value = eh->root.u.def.value;
4345 1.1 christos if (eh->root.u.def.section->output_section != NULL)
4346 1.1 christos value += (eh->root.u.def.section->output_offset
4347 1.1 christos + eh->root.u.def.section->output_section->vma);
4348 1.1 christos }
4349 1.1 christos
4350 1.1 christos /* Create a dynamic IPLT relocation for this entry. */
4351 1.1 christos rela.r_offset = (eh->plt.offset
4352 1.7 christos + htab->etab.splt->output_offset
4353 1.7 christos + htab->etab.splt->output_section->vma);
4354 1.1 christos if (eh->dynindx != -1)
4355 1.1 christos {
4356 1.1 christos rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4357 1.1 christos rela.r_addend = 0;
4358 1.1 christos }
4359 1.1 christos else
4360 1.1 christos {
4361 1.1 christos /* This symbol has been marked to become local, and is
4362 1.1 christos used by a plabel so must be kept in the .plt. */
4363 1.1 christos rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4364 1.1 christos rela.r_addend = value;
4365 1.1 christos }
4366 1.1 christos
4367 1.7 christos loc = htab->etab.srelplt->contents;
4368 1.7 christos loc += htab->etab.srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4369 1.7 christos bfd_elf32_swap_reloca_out (htab->etab.splt->output_section->owner, &rela, loc);
4370 1.1 christos
4371 1.1 christos if (!eh->def_regular)
4372 1.1 christos {
4373 1.1 christos /* Mark the symbol as undefined, rather than as defined in
4374 1.1 christos the .plt section. Leave the value alone. */
4375 1.1 christos sym->st_shndx = SHN_UNDEF;
4376 1.1 christos }
4377 1.1 christos }
4378 1.1 christos
4379 1.1 christos if (eh->got.offset != (bfd_vma) -1
4380 1.1 christos && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4381 1.1 christos && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
4382 1.1 christos {
4383 1.1 christos /* This symbol has an entry in the global offset table. Set it
4384 1.1 christos up. */
4385 1.1 christos
4386 1.1 christos rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
4387 1.7 christos + htab->etab.sgot->output_offset
4388 1.7 christos + htab->etab.sgot->output_section->vma);
4389 1.1 christos
4390 1.1 christos /* If this is a -Bsymbolic link and the symbol is defined
4391 1.1 christos locally or was forced to be local because of a version file,
4392 1.1 christos we just want to emit a RELATIVE reloc. The entry in the
4393 1.1 christos global offset table will already have been initialized in the
4394 1.1 christos relocate_section function. */
4395 1.6 christos if (bfd_link_pic (info)
4396 1.6 christos && (SYMBOLIC_BIND (info, eh) || eh->dynindx == -1)
4397 1.1 christos && eh->def_regular)
4398 1.1 christos {
4399 1.1 christos rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4400 1.1 christos rela.r_addend = (eh->root.u.def.value
4401 1.1 christos + eh->root.u.def.section->output_offset
4402 1.1 christos + eh->root.u.def.section->output_section->vma);
4403 1.1 christos }
4404 1.1 christos else
4405 1.1 christos {
4406 1.1 christos if ((eh->got.offset & 1) != 0)
4407 1.1 christos abort ();
4408 1.1 christos
4409 1.7 christos bfd_put_32 (output_bfd, 0, htab->etab.sgot->contents + (eh->got.offset & ~1));
4410 1.1 christos rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4411 1.1 christos rela.r_addend = 0;
4412 1.1 christos }
4413 1.1 christos
4414 1.7 christos loc = htab->etab.srelgot->contents;
4415 1.7 christos loc += htab->etab.srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4416 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4417 1.1 christos }
4418 1.1 christos
4419 1.1 christos if (eh->needs_copy)
4420 1.1 christos {
4421 1.1 christos asection *sec;
4422 1.1 christos
4423 1.1 christos /* This symbol needs a copy reloc. Set it up. */
4424 1.1 christos
4425 1.1 christos if (! (eh->dynindx != -1
4426 1.1 christos && (eh->root.type == bfd_link_hash_defined
4427 1.1 christos || eh->root.type == bfd_link_hash_defweak)))
4428 1.1 christos abort ();
4429 1.1 christos
4430 1.1 christos rela.r_offset = (eh->root.u.def.value
4431 1.1 christos + eh->root.u.def.section->output_offset
4432 1.1 christos + eh->root.u.def.section->output_section->vma);
4433 1.1 christos rela.r_addend = 0;
4434 1.1 christos rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4435 1.7 christos if (eh->root.u.def.section == htab->etab.sdynrelro)
4436 1.7 christos sec = htab->etab.sreldynrelro;
4437 1.7 christos else
4438 1.7 christos sec = htab->etab.srelbss;
4439 1.1 christos loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4440 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4441 1.1 christos }
4442 1.1 christos
4443 1.1 christos /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4444 1.1 christos if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
4445 1.1 christos {
4446 1.1 christos sym->st_shndx = SHN_ABS;
4447 1.1 christos }
4448 1.1 christos
4449 1.1 christos return TRUE;
4450 1.1 christos }
4451 1.1 christos
4452 1.1 christos /* Used to decide how to sort relocs in an optimal manner for the
4453 1.1 christos dynamic linker, before writing them out. */
4454 1.1 christos
4455 1.1 christos static enum elf_reloc_type_class
4456 1.1 christos elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4457 1.1 christos const asection *rel_sec ATTRIBUTE_UNUSED,
4458 1.1 christos const Elf_Internal_Rela *rela)
4459 1.1 christos {
4460 1.1 christos /* Handle TLS relocs first; we don't want them to be marked
4461 1.1 christos relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
4462 1.1 christos check below. */
4463 1.1 christos switch ((int) ELF32_R_TYPE (rela->r_info))
4464 1.1 christos {
4465 1.1 christos case R_PARISC_TLS_DTPMOD32:
4466 1.1 christos case R_PARISC_TLS_DTPOFF32:
4467 1.1 christos case R_PARISC_TLS_TPREL32:
4468 1.1 christos return reloc_class_normal;
4469 1.1 christos }
4470 1.1 christos
4471 1.1 christos if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
4472 1.1 christos return reloc_class_relative;
4473 1.1 christos
4474 1.1 christos switch ((int) ELF32_R_TYPE (rela->r_info))
4475 1.1 christos {
4476 1.1 christos case R_PARISC_IPLT:
4477 1.1 christos return reloc_class_plt;
4478 1.1 christos case R_PARISC_COPY:
4479 1.1 christos return reloc_class_copy;
4480 1.1 christos default:
4481 1.1 christos return reloc_class_normal;
4482 1.1 christos }
4483 1.1 christos }
4484 1.1 christos
4485 1.1 christos /* Finish up the dynamic sections. */
4486 1.1 christos
4487 1.1 christos static bfd_boolean
4488 1.1 christos elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4489 1.1 christos struct bfd_link_info *info)
4490 1.1 christos {
4491 1.1 christos bfd *dynobj;
4492 1.1 christos struct elf32_hppa_link_hash_table *htab;
4493 1.1 christos asection *sdyn;
4494 1.1 christos asection * sgot;
4495 1.1 christos
4496 1.1 christos htab = hppa_link_hash_table (info);
4497 1.1 christos if (htab == NULL)
4498 1.1 christos return FALSE;
4499 1.1 christos
4500 1.1 christos dynobj = htab->etab.dynobj;
4501 1.1 christos
4502 1.7 christos sgot = htab->etab.sgot;
4503 1.1 christos /* A broken linker script might have discarded the dynamic sections.
4504 1.1 christos Catch this here so that we do not seg-fault later on. */
4505 1.1 christos if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4506 1.1 christos return FALSE;
4507 1.1 christos
4508 1.1 christos sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4509 1.1 christos
4510 1.1 christos if (htab->etab.dynamic_sections_created)
4511 1.1 christos {
4512 1.1 christos Elf32_External_Dyn *dyncon, *dynconend;
4513 1.1 christos
4514 1.1 christos if (sdyn == NULL)
4515 1.1 christos abort ();
4516 1.1 christos
4517 1.1 christos dyncon = (Elf32_External_Dyn *) sdyn->contents;
4518 1.1 christos dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4519 1.1 christos for (; dyncon < dynconend; dyncon++)
4520 1.1 christos {
4521 1.1 christos Elf_Internal_Dyn dyn;
4522 1.1 christos asection *s;
4523 1.1 christos
4524 1.1 christos bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4525 1.1 christos
4526 1.1 christos switch (dyn.d_tag)
4527 1.1 christos {
4528 1.1 christos default:
4529 1.1 christos continue;
4530 1.1 christos
4531 1.1 christos case DT_PLTGOT:
4532 1.1 christos /* Use PLTGOT to set the GOT register. */
4533 1.1 christos dyn.d_un.d_ptr = elf_gp (output_bfd);
4534 1.1 christos break;
4535 1.1 christos
4536 1.1 christos case DT_JMPREL:
4537 1.7 christos s = htab->etab.srelplt;
4538 1.1 christos dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4539 1.1 christos break;
4540 1.1 christos
4541 1.1 christos case DT_PLTRELSZ:
4542 1.7 christos s = htab->etab.srelplt;
4543 1.1 christos dyn.d_un.d_val = s->size;
4544 1.1 christos break;
4545 1.1 christos }
4546 1.1 christos
4547 1.1 christos bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4548 1.1 christos }
4549 1.1 christos }
4550 1.1 christos
4551 1.1 christos if (sgot != NULL && sgot->size != 0)
4552 1.1 christos {
4553 1.1 christos /* Fill in the first entry in the global offset table.
4554 1.1 christos We use it to point to our dynamic section, if we have one. */
4555 1.1 christos bfd_put_32 (output_bfd,
4556 1.1 christos sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
4557 1.1 christos sgot->contents);
4558 1.1 christos
4559 1.1 christos /* The second entry is reserved for use by the dynamic linker. */
4560 1.1 christos memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
4561 1.1 christos
4562 1.1 christos /* Set .got entry size. */
4563 1.1 christos elf_section_data (sgot->output_section)
4564 1.1 christos ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
4565 1.1 christos }
4566 1.1 christos
4567 1.7 christos if (htab->etab.splt != NULL && htab->etab.splt->size != 0)
4568 1.1 christos {
4569 1.6 christos /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4570 1.6 christos plt stubs and as such the section does not hold a table of fixed-size
4571 1.6 christos entries. */
4572 1.7 christos elf_section_data (htab->etab.splt->output_section)->this_hdr.sh_entsize = 0;
4573 1.1 christos
4574 1.1 christos if (htab->need_plt_stub)
4575 1.1 christos {
4576 1.1 christos /* Set up the .plt stub. */
4577 1.7 christos memcpy (htab->etab.splt->contents
4578 1.7 christos + htab->etab.splt->size - sizeof (plt_stub),
4579 1.1 christos plt_stub, sizeof (plt_stub));
4580 1.1 christos
4581 1.7 christos if ((htab->etab.splt->output_offset
4582 1.7 christos + htab->etab.splt->output_section->vma
4583 1.7 christos + htab->etab.splt->size)
4584 1.1 christos != (sgot->output_offset
4585 1.1 christos + sgot->output_section->vma))
4586 1.1 christos {
4587 1.7 christos _bfd_error_handler
4588 1.1 christos (_(".got section not immediately after .plt section"));
4589 1.1 christos return FALSE;
4590 1.1 christos }
4591 1.1 christos }
4592 1.1 christos }
4593 1.1 christos
4594 1.1 christos return TRUE;
4595 1.1 christos }
4596 1.1 christos
4597 1.1 christos /* Called when writing out an object file to decide the type of a
4598 1.1 christos symbol. */
4599 1.1 christos static int
4600 1.1 christos elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
4601 1.1 christos {
4602 1.1 christos if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4603 1.1 christos return STT_PARISC_MILLI;
4604 1.1 christos else
4605 1.1 christos return type;
4606 1.1 christos }
4607 1.1 christos
4608 1.1 christos /* Misc BFD support code. */
4609 1.1 christos #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4610 1.1 christos #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4611 1.1 christos #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4612 1.1 christos #define elf_info_to_howto elf_hppa_info_to_howto
4613 1.1 christos #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4614 1.1 christos
4615 1.1 christos /* Stuff for the BFD linker. */
4616 1.1 christos #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4617 1.1 christos #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4618 1.1 christos #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4619 1.1 christos #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4620 1.1 christos #define elf_backend_check_relocs elf32_hppa_check_relocs
4621 1.1 christos #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4622 1.1 christos #define elf_backend_fake_sections elf_hppa_fake_sections
4623 1.1 christos #define elf_backend_relocate_section elf32_hppa_relocate_section
4624 1.1 christos #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4625 1.1 christos #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4626 1.1 christos #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4627 1.1 christos #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4628 1.1 christos #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4629 1.1 christos #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4630 1.1 christos #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
4631 1.1 christos #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4632 1.1 christos #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4633 1.1 christos #define elf_backend_object_p elf32_hppa_object_p
4634 1.1 christos #define elf_backend_final_write_processing elf_hppa_final_write_processing
4635 1.1 christos #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4636 1.1 christos #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4637 1.1 christos #define elf_backend_action_discarded elf_hppa_action_discarded
4638 1.1 christos
4639 1.1 christos #define elf_backend_can_gc_sections 1
4640 1.1 christos #define elf_backend_can_refcount 1
4641 1.1 christos #define elf_backend_plt_alignment 2
4642 1.1 christos #define elf_backend_want_got_plt 0
4643 1.1 christos #define elf_backend_plt_readonly 0
4644 1.1 christos #define elf_backend_want_plt_sym 0
4645 1.1 christos #define elf_backend_got_header_size 8
4646 1.7 christos #define elf_backend_want_dynrelro 1
4647 1.1 christos #define elf_backend_rela_normal 1
4648 1.7 christos #define elf_backend_dtrel_excludes_plt 1
4649 1.7 christos #define elf_backend_no_page_alias 1
4650 1.1 christos
4651 1.3 christos #define TARGET_BIG_SYM hppa_elf32_vec
4652 1.1 christos #define TARGET_BIG_NAME "elf32-hppa"
4653 1.1 christos #define ELF_ARCH bfd_arch_hppa
4654 1.1 christos #define ELF_TARGET_ID HPPA32_ELF_DATA
4655 1.1 christos #define ELF_MACHINE_CODE EM_PARISC
4656 1.1 christos #define ELF_MAXPAGESIZE 0x1000
4657 1.1 christos #define ELF_OSABI ELFOSABI_HPUX
4658 1.1 christos #define elf32_bed elf32_hppa_hpux_bed
4659 1.1 christos
4660 1.1 christos #include "elf32-target.h"
4661 1.1 christos
4662 1.1 christos #undef TARGET_BIG_SYM
4663 1.3 christos #define TARGET_BIG_SYM hppa_elf32_linux_vec
4664 1.1 christos #undef TARGET_BIG_NAME
4665 1.1 christos #define TARGET_BIG_NAME "elf32-hppa-linux"
4666 1.1 christos #undef ELF_OSABI
4667 1.1 christos #define ELF_OSABI ELFOSABI_GNU
4668 1.1 christos #undef elf32_bed
4669 1.1 christos #define elf32_bed elf32_hppa_linux_bed
4670 1.1 christos
4671 1.1 christos #include "elf32-target.h"
4672 1.1 christos
4673 1.1 christos #undef TARGET_BIG_SYM
4674 1.3 christos #define TARGET_BIG_SYM hppa_elf32_nbsd_vec
4675 1.1 christos #undef TARGET_BIG_NAME
4676 1.1 christos #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4677 1.1 christos #undef ELF_OSABI
4678 1.1 christos #define ELF_OSABI ELFOSABI_NETBSD
4679 1.1 christos #undef elf32_bed
4680 1.1 christos #define elf32_bed elf32_hppa_netbsd_bed
4681 1.1 christos
4682 1.1 christos #include "elf32-target.h"
4683