elf32-hppa.c revision 1.1.1.4 1 1.1 christos /* BFD back-end for HP PA-RISC ELF files.
2 1.1.1.4 christos Copyright (C) 1990-2015 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 1.1.1.2 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 1.1.1.2 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 1.1.1.2 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 1.1.1.2 christos
137 1.1 christos Always remember to use GNU Coding Style. */
138 1.1.1.2 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 1.1 christos 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 /* Short-cuts to get to dynamic linker sections. */
278 1.1 christos asection *sgot;
279 1.1 christos asection *srelgot;
280 1.1 christos asection *splt;
281 1.1 christos asection *srelplt;
282 1.1 christos asection *sdynbss;
283 1.1 christos asection *srelbss;
284 1.1 christos
285 1.1 christos /* Used during a final link to store the base of the text and data
286 1.1 christos segments so that we can perform SEGREL relocations. */
287 1.1 christos bfd_vma text_segment_base;
288 1.1 christos bfd_vma data_segment_base;
289 1.1 christos
290 1.1 christos /* Whether we support multiple sub-spaces for shared libs. */
291 1.1 christos unsigned int multi_subspace:1;
292 1.1 christos
293 1.1 christos /* Flags set when various size branches are detected. Used to
294 1.1 christos select suitable defaults for the stub group size. */
295 1.1 christos unsigned int has_12bit_branch:1;
296 1.1 christos unsigned int has_17bit_branch:1;
297 1.1 christos unsigned int has_22bit_branch:1;
298 1.1 christos
299 1.1 christos /* Set if we need a .plt stub to support lazy dynamic linking. */
300 1.1 christos unsigned int need_plt_stub:1;
301 1.1 christos
302 1.1 christos /* Small local sym cache. */
303 1.1 christos struct sym_cache sym_cache;
304 1.1 christos
305 1.1 christos /* Data for LDM relocations. */
306 1.1 christos union
307 1.1 christos {
308 1.1 christos bfd_signed_vma refcount;
309 1.1 christos bfd_vma offset;
310 1.1 christos } tls_ldm_got;
311 1.1 christos };
312 1.1 christos
313 1.1 christos /* Various hash macros and functions. */
314 1.1 christos #define hppa_link_hash_table(p) \
315 1.1 christos (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
316 1.1 christos == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
317 1.1 christos
318 1.1 christos #define hppa_elf_hash_entry(ent) \
319 1.1 christos ((struct elf32_hppa_link_hash_entry *)(ent))
320 1.1 christos
321 1.1 christos #define hppa_stub_hash_entry(ent) \
322 1.1 christos ((struct elf32_hppa_stub_hash_entry *)(ent))
323 1.1 christos
324 1.1 christos #define hppa_stub_hash_lookup(table, string, create, copy) \
325 1.1 christos ((struct elf32_hppa_stub_hash_entry *) \
326 1.1 christos bfd_hash_lookup ((table), (string), (create), (copy)))
327 1.1 christos
328 1.1 christos #define hppa_elf_local_got_tls_type(abfd) \
329 1.1 christos ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
330 1.1 christos
331 1.1 christos #define hh_name(hh) \
332 1.1 christos (hh ? hh->eh.root.root.string : "<undef>")
333 1.1 christos
334 1.1 christos #define eh_name(eh) \
335 1.1 christos (eh ? eh->root.root.string : "<undef>")
336 1.1 christos
337 1.1 christos /* Assorted hash table functions. */
338 1.1 christos
339 1.1 christos /* Initialize an entry in the stub hash table. */
340 1.1 christos
341 1.1 christos static struct bfd_hash_entry *
342 1.1 christos stub_hash_newfunc (struct bfd_hash_entry *entry,
343 1.1 christos struct bfd_hash_table *table,
344 1.1 christos const char *string)
345 1.1 christos {
346 1.1 christos /* Allocate the structure if it has not already been allocated by a
347 1.1 christos subclass. */
348 1.1 christos if (entry == NULL)
349 1.1 christos {
350 1.1 christos entry = bfd_hash_allocate (table,
351 1.1 christos sizeof (struct elf32_hppa_stub_hash_entry));
352 1.1 christos if (entry == NULL)
353 1.1 christos return entry;
354 1.1 christos }
355 1.1 christos
356 1.1 christos /* Call the allocation method of the superclass. */
357 1.1 christos entry = bfd_hash_newfunc (entry, table, string);
358 1.1 christos if (entry != NULL)
359 1.1 christos {
360 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
361 1.1 christos
362 1.1 christos /* Initialize the local fields. */
363 1.1 christos hsh = hppa_stub_hash_entry (entry);
364 1.1 christos hsh->stub_sec = NULL;
365 1.1 christos hsh->stub_offset = 0;
366 1.1 christos hsh->target_value = 0;
367 1.1 christos hsh->target_section = NULL;
368 1.1 christos hsh->stub_type = hppa_stub_long_branch;
369 1.1 christos hsh->hh = NULL;
370 1.1 christos hsh->id_sec = NULL;
371 1.1 christos }
372 1.1 christos
373 1.1 christos return entry;
374 1.1 christos }
375 1.1 christos
376 1.1 christos /* Initialize an entry in the link hash table. */
377 1.1 christos
378 1.1 christos static struct bfd_hash_entry *
379 1.1 christos hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
380 1.1 christos struct bfd_hash_table *table,
381 1.1 christos const char *string)
382 1.1 christos {
383 1.1 christos /* Allocate the structure if it has not already been allocated by a
384 1.1 christos subclass. */
385 1.1 christos if (entry == NULL)
386 1.1 christos {
387 1.1 christos entry = bfd_hash_allocate (table,
388 1.1 christos sizeof (struct elf32_hppa_link_hash_entry));
389 1.1 christos if (entry == NULL)
390 1.1 christos return entry;
391 1.1 christos }
392 1.1 christos
393 1.1 christos /* Call the allocation method of the superclass. */
394 1.1 christos entry = _bfd_elf_link_hash_newfunc (entry, table, string);
395 1.1 christos if (entry != NULL)
396 1.1 christos {
397 1.1 christos struct elf32_hppa_link_hash_entry *hh;
398 1.1 christos
399 1.1 christos /* Initialize the local fields. */
400 1.1 christos hh = hppa_elf_hash_entry (entry);
401 1.1 christos hh->hsh_cache = NULL;
402 1.1 christos hh->dyn_relocs = NULL;
403 1.1 christos hh->plabel = 0;
404 1.1 christos hh->tls_type = GOT_UNKNOWN;
405 1.1 christos }
406 1.1 christos
407 1.1 christos return entry;
408 1.1 christos }
409 1.1 christos
410 1.1.1.4 christos /* Free the derived linker hash table. */
411 1.1.1.4 christos
412 1.1.1.4 christos static void
413 1.1.1.4 christos elf32_hppa_link_hash_table_free (bfd *obfd)
414 1.1.1.4 christos {
415 1.1.1.4 christos struct elf32_hppa_link_hash_table *htab
416 1.1.1.4 christos = (struct elf32_hppa_link_hash_table *) obfd->link.hash;
417 1.1.1.4 christos
418 1.1.1.4 christos bfd_hash_table_free (&htab->bstab);
419 1.1.1.4 christos _bfd_elf_link_hash_table_free (obfd);
420 1.1.1.4 christos }
421 1.1.1.4 christos
422 1.1 christos /* Create the derived linker hash table. The PA ELF port uses the derived
423 1.1 christos hash table to keep information specific to the PA ELF linker (without
424 1.1 christos using static variables). */
425 1.1 christos
426 1.1 christos static struct bfd_link_hash_table *
427 1.1 christos elf32_hppa_link_hash_table_create (bfd *abfd)
428 1.1 christos {
429 1.1 christos struct elf32_hppa_link_hash_table *htab;
430 1.1 christos bfd_size_type amt = sizeof (*htab);
431 1.1 christos
432 1.1.1.2 christos htab = bfd_zmalloc (amt);
433 1.1 christos if (htab == NULL)
434 1.1 christos return NULL;
435 1.1 christos
436 1.1 christos if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
437 1.1 christos sizeof (struct elf32_hppa_link_hash_entry),
438 1.1 christos HPPA32_ELF_DATA))
439 1.1 christos {
440 1.1 christos free (htab);
441 1.1 christos return NULL;
442 1.1 christos }
443 1.1 christos
444 1.1 christos /* Init the stub hash table too. */
445 1.1 christos if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
446 1.1 christos sizeof (struct elf32_hppa_stub_hash_entry)))
447 1.1.1.4 christos {
448 1.1.1.4 christos _bfd_elf_link_hash_table_free (abfd);
449 1.1.1.4 christos return NULL;
450 1.1.1.4 christos }
451 1.1.1.4 christos htab->etab.root.hash_table_free = elf32_hppa_link_hash_table_free;
452 1.1 christos
453 1.1 christos htab->text_segment_base = (bfd_vma) -1;
454 1.1 christos htab->data_segment_base = (bfd_vma) -1;
455 1.1 christos return &htab->etab.root;
456 1.1 christos }
457 1.1 christos
458 1.1 christos /* Build a name for an entry in the stub hash table. */
459 1.1 christos
460 1.1 christos static char *
461 1.1 christos hppa_stub_name (const asection *input_section,
462 1.1 christos const asection *sym_sec,
463 1.1 christos const struct elf32_hppa_link_hash_entry *hh,
464 1.1 christos const Elf_Internal_Rela *rela)
465 1.1 christos {
466 1.1 christos char *stub_name;
467 1.1 christos bfd_size_type len;
468 1.1 christos
469 1.1 christos if (hh)
470 1.1 christos {
471 1.1 christos len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
472 1.1 christos stub_name = bfd_malloc (len);
473 1.1 christos if (stub_name != NULL)
474 1.1 christos sprintf (stub_name, "%08x_%s+%x",
475 1.1 christos input_section->id & 0xffffffff,
476 1.1 christos hh_name (hh),
477 1.1 christos (int) rela->r_addend & 0xffffffff);
478 1.1 christos }
479 1.1 christos else
480 1.1 christos {
481 1.1 christos len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
482 1.1 christos stub_name = bfd_malloc (len);
483 1.1 christos if (stub_name != NULL)
484 1.1 christos sprintf (stub_name, "%08x_%x:%x+%x",
485 1.1 christos input_section->id & 0xffffffff,
486 1.1 christos sym_sec->id & 0xffffffff,
487 1.1 christos (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
488 1.1 christos (int) rela->r_addend & 0xffffffff);
489 1.1 christos }
490 1.1 christos return stub_name;
491 1.1 christos }
492 1.1 christos
493 1.1 christos /* Look up an entry in the stub hash. Stub entries are cached because
494 1.1 christos creating the stub name takes a bit of time. */
495 1.1 christos
496 1.1 christos static struct elf32_hppa_stub_hash_entry *
497 1.1 christos hppa_get_stub_entry (const asection *input_section,
498 1.1 christos const asection *sym_sec,
499 1.1 christos struct elf32_hppa_link_hash_entry *hh,
500 1.1 christos const Elf_Internal_Rela *rela,
501 1.1 christos struct elf32_hppa_link_hash_table *htab)
502 1.1 christos {
503 1.1 christos struct elf32_hppa_stub_hash_entry *hsh_entry;
504 1.1 christos const asection *id_sec;
505 1.1 christos
506 1.1 christos /* If this input section is part of a group of sections sharing one
507 1.1 christos stub section, then use the id of the first section in the group.
508 1.1 christos Stub names need to include a section id, as there may well be
509 1.1 christos more than one stub used to reach say, printf, and we need to
510 1.1 christos distinguish between them. */
511 1.1 christos id_sec = htab->stub_group[input_section->id].link_sec;
512 1.1 christos
513 1.1 christos if (hh != NULL && hh->hsh_cache != NULL
514 1.1 christos && hh->hsh_cache->hh == hh
515 1.1 christos && hh->hsh_cache->id_sec == id_sec)
516 1.1 christos {
517 1.1 christos hsh_entry = hh->hsh_cache;
518 1.1 christos }
519 1.1 christos else
520 1.1 christos {
521 1.1 christos char *stub_name;
522 1.1 christos
523 1.1 christos stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
524 1.1 christos if (stub_name == NULL)
525 1.1 christos return NULL;
526 1.1 christos
527 1.1 christos hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
528 1.1 christos stub_name, FALSE, FALSE);
529 1.1 christos if (hh != NULL)
530 1.1 christos hh->hsh_cache = hsh_entry;
531 1.1 christos
532 1.1 christos free (stub_name);
533 1.1 christos }
534 1.1 christos
535 1.1 christos return hsh_entry;
536 1.1 christos }
537 1.1 christos
538 1.1 christos /* Add a new stub entry to the stub hash. Not all fields of the new
539 1.1 christos stub entry are initialised. */
540 1.1 christos
541 1.1 christos static struct elf32_hppa_stub_hash_entry *
542 1.1 christos hppa_add_stub (const char *stub_name,
543 1.1 christos asection *section,
544 1.1 christos struct elf32_hppa_link_hash_table *htab)
545 1.1 christos {
546 1.1 christos asection *link_sec;
547 1.1 christos asection *stub_sec;
548 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
549 1.1 christos
550 1.1 christos link_sec = htab->stub_group[section->id].link_sec;
551 1.1 christos stub_sec = htab->stub_group[section->id].stub_sec;
552 1.1 christos if (stub_sec == NULL)
553 1.1 christos {
554 1.1 christos stub_sec = htab->stub_group[link_sec->id].stub_sec;
555 1.1 christos if (stub_sec == NULL)
556 1.1 christos {
557 1.1 christos size_t namelen;
558 1.1 christos bfd_size_type len;
559 1.1 christos char *s_name;
560 1.1 christos
561 1.1 christos namelen = strlen (link_sec->name);
562 1.1 christos len = namelen + sizeof (STUB_SUFFIX);
563 1.1 christos s_name = bfd_alloc (htab->stub_bfd, len);
564 1.1 christos if (s_name == NULL)
565 1.1 christos return NULL;
566 1.1 christos
567 1.1 christos memcpy (s_name, link_sec->name, namelen);
568 1.1 christos memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
569 1.1 christos stub_sec = (*htab->add_stub_section) (s_name, link_sec);
570 1.1 christos if (stub_sec == NULL)
571 1.1 christos return NULL;
572 1.1 christos htab->stub_group[link_sec->id].stub_sec = stub_sec;
573 1.1 christos }
574 1.1 christos htab->stub_group[section->id].stub_sec = stub_sec;
575 1.1 christos }
576 1.1 christos
577 1.1 christos /* Enter this entry into the linker stub hash table. */
578 1.1 christos hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
579 1.1 christos TRUE, FALSE);
580 1.1 christos if (hsh == NULL)
581 1.1 christos {
582 1.1 christos (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
583 1.1 christos section->owner,
584 1.1 christos stub_name);
585 1.1 christos return NULL;
586 1.1 christos }
587 1.1 christos
588 1.1 christos hsh->stub_sec = stub_sec;
589 1.1 christos hsh->stub_offset = 0;
590 1.1 christos hsh->id_sec = link_sec;
591 1.1 christos return hsh;
592 1.1 christos }
593 1.1 christos
594 1.1 christos /* Determine the type of stub needed, if any, for a call. */
595 1.1 christos
596 1.1 christos static enum elf32_hppa_stub_type
597 1.1 christos hppa_type_of_stub (asection *input_sec,
598 1.1 christos const Elf_Internal_Rela *rela,
599 1.1 christos struct elf32_hppa_link_hash_entry *hh,
600 1.1 christos bfd_vma destination,
601 1.1 christos struct bfd_link_info *info)
602 1.1 christos {
603 1.1 christos bfd_vma location;
604 1.1 christos bfd_vma branch_offset;
605 1.1 christos bfd_vma max_branch_offset;
606 1.1 christos unsigned int r_type;
607 1.1 christos
608 1.1 christos if (hh != NULL
609 1.1 christos && hh->eh.plt.offset != (bfd_vma) -1
610 1.1 christos && hh->eh.dynindx != -1
611 1.1 christos && !hh->plabel
612 1.1 christos && (info->shared
613 1.1 christos || !hh->eh.def_regular
614 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak))
615 1.1 christos {
616 1.1 christos /* We need an import stub. Decide between hppa_stub_import
617 1.1 christos and hppa_stub_import_shared later. */
618 1.1 christos return hppa_stub_import;
619 1.1 christos }
620 1.1 christos
621 1.1 christos /* Determine where the call point is. */
622 1.1 christos location = (input_sec->output_offset
623 1.1 christos + input_sec->output_section->vma
624 1.1 christos + rela->r_offset);
625 1.1 christos
626 1.1 christos branch_offset = destination - location - 8;
627 1.1 christos r_type = ELF32_R_TYPE (rela->r_info);
628 1.1 christos
629 1.1 christos /* Determine if a long branch stub is needed. parisc branch offsets
630 1.1 christos are relative to the second instruction past the branch, ie. +8
631 1.1 christos bytes on from the branch instruction location. The offset is
632 1.1 christos signed and counts in units of 4 bytes. */
633 1.1 christos if (r_type == (unsigned int) R_PARISC_PCREL17F)
634 1.1 christos max_branch_offset = (1 << (17 - 1)) << 2;
635 1.1 christos
636 1.1 christos else if (r_type == (unsigned int) R_PARISC_PCREL12F)
637 1.1 christos max_branch_offset = (1 << (12 - 1)) << 2;
638 1.1 christos
639 1.1 christos else /* R_PARISC_PCREL22F. */
640 1.1 christos max_branch_offset = (1 << (22 - 1)) << 2;
641 1.1 christos
642 1.1 christos if (branch_offset + max_branch_offset >= 2*max_branch_offset)
643 1.1 christos return hppa_stub_long_branch;
644 1.1 christos
645 1.1 christos return hppa_stub_none;
646 1.1 christos }
647 1.1 christos
648 1.1 christos /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
649 1.1 christos IN_ARG contains the link info pointer. */
650 1.1 christos
651 1.1 christos #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
652 1.1 christos #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
653 1.1 christos
654 1.1 christos #define BL_R1 0xe8200000 /* b,l .+8,%r1 */
655 1.1 christos #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
656 1.1 christos #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
657 1.1 christos
658 1.1 christos #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
659 1.1 christos #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
660 1.1 christos #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
661 1.1 christos #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
662 1.1 christos
663 1.1 christos #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
664 1.1 christos #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
665 1.1 christos
666 1.1 christos #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
667 1.1 christos #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
668 1.1 christos #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
669 1.1 christos #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
670 1.1 christos
671 1.1 christos #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
672 1.1 christos #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
673 1.1 christos #define NOP 0x08000240 /* nop */
674 1.1 christos #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
675 1.1 christos #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
676 1.1 christos #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
677 1.1 christos
678 1.1 christos #ifndef R19_STUBS
679 1.1 christos #define R19_STUBS 1
680 1.1 christos #endif
681 1.1 christos
682 1.1 christos #if R19_STUBS
683 1.1 christos #define LDW_R1_DLT LDW_R1_R19
684 1.1 christos #else
685 1.1 christos #define LDW_R1_DLT LDW_R1_DP
686 1.1 christos #endif
687 1.1 christos
688 1.1 christos static bfd_boolean
689 1.1 christos hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
690 1.1 christos {
691 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
692 1.1 christos struct bfd_link_info *info;
693 1.1 christos struct elf32_hppa_link_hash_table *htab;
694 1.1 christos asection *stub_sec;
695 1.1 christos bfd *stub_bfd;
696 1.1 christos bfd_byte *loc;
697 1.1 christos bfd_vma sym_value;
698 1.1 christos bfd_vma insn;
699 1.1 christos bfd_vma off;
700 1.1 christos int val;
701 1.1 christos int size;
702 1.1 christos
703 1.1 christos /* Massage our args to the form they really have. */
704 1.1 christos hsh = hppa_stub_hash_entry (bh);
705 1.1 christos info = (struct bfd_link_info *)in_arg;
706 1.1 christos
707 1.1 christos htab = hppa_link_hash_table (info);
708 1.1 christos if (htab == NULL)
709 1.1 christos return FALSE;
710 1.1 christos
711 1.1 christos stub_sec = hsh->stub_sec;
712 1.1 christos
713 1.1 christos /* Make a note of the offset within the stubs for this entry. */
714 1.1 christos hsh->stub_offset = stub_sec->size;
715 1.1 christos loc = stub_sec->contents + hsh->stub_offset;
716 1.1 christos
717 1.1 christos stub_bfd = stub_sec->owner;
718 1.1 christos
719 1.1 christos switch (hsh->stub_type)
720 1.1 christos {
721 1.1 christos case hppa_stub_long_branch:
722 1.1 christos /* Create the long branch. A long branch is formed with "ldil"
723 1.1 christos loading the upper bits of the target address into a register,
724 1.1 christos then branching with "be" which adds in the lower bits.
725 1.1 christos The "be" has its delay slot nullified. */
726 1.1 christos sym_value = (hsh->target_value
727 1.1 christos + hsh->target_section->output_offset
728 1.1 christos + hsh->target_section->output_section->vma);
729 1.1 christos
730 1.1 christos val = hppa_field_adjust (sym_value, 0, e_lrsel);
731 1.1 christos insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
732 1.1 christos bfd_put_32 (stub_bfd, insn, loc);
733 1.1 christos
734 1.1 christos val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
735 1.1 christos insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
736 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 4);
737 1.1 christos
738 1.1 christos size = 8;
739 1.1 christos break;
740 1.1 christos
741 1.1 christos case hppa_stub_long_branch_shared:
742 1.1 christos /* Branches are relative. This is where we are going to. */
743 1.1 christos sym_value = (hsh->target_value
744 1.1 christos + hsh->target_section->output_offset
745 1.1 christos + hsh->target_section->output_section->vma);
746 1.1 christos
747 1.1 christos /* And this is where we are coming from, more or less. */
748 1.1 christos sym_value -= (hsh->stub_offset
749 1.1 christos + stub_sec->output_offset
750 1.1 christos + stub_sec->output_section->vma);
751 1.1 christos
752 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
753 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
754 1.1 christos insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
755 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 4);
756 1.1 christos
757 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
758 1.1 christos insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
759 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 8);
760 1.1 christos size = 12;
761 1.1 christos break;
762 1.1 christos
763 1.1 christos case hppa_stub_import:
764 1.1 christos case hppa_stub_import_shared:
765 1.1 christos off = hsh->hh->eh.plt.offset;
766 1.1 christos if (off >= (bfd_vma) -2)
767 1.1 christos abort ();
768 1.1 christos
769 1.1 christos off &= ~ (bfd_vma) 1;
770 1.1 christos sym_value = (off
771 1.1 christos + htab->splt->output_offset
772 1.1 christos + htab->splt->output_section->vma
773 1.1 christos - elf_gp (htab->splt->output_section->owner));
774 1.1 christos
775 1.1 christos insn = ADDIL_DP;
776 1.1 christos #if R19_STUBS
777 1.1 christos if (hsh->stub_type == hppa_stub_import_shared)
778 1.1 christos insn = ADDIL_R19;
779 1.1 christos #endif
780 1.1 christos val = hppa_field_adjust (sym_value, 0, e_lrsel),
781 1.1 christos insn = hppa_rebuild_insn ((int) insn, val, 21);
782 1.1 christos bfd_put_32 (stub_bfd, insn, loc);
783 1.1 christos
784 1.1 christos /* It is critical to use lrsel/rrsel here because we are using
785 1.1 christos two different offsets (+0 and +4) from sym_value. If we use
786 1.1 christos lsel/rsel then with unfortunate sym_values we will round
787 1.1 christos sym_value+4 up to the next 2k block leading to a mis-match
788 1.1 christos between the lsel and rsel value. */
789 1.1 christos val = hppa_field_adjust (sym_value, 0, e_rrsel);
790 1.1 christos insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
791 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 4);
792 1.1 christos
793 1.1 christos if (htab->multi_subspace)
794 1.1 christos {
795 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
796 1.1 christos insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
797 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 8);
798 1.1 christos
799 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
800 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
801 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
802 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
803 1.1 christos
804 1.1 christos size = 28;
805 1.1 christos }
806 1.1 christos else
807 1.1 christos {
808 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
809 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
810 1.1 christos insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
811 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 12);
812 1.1 christos
813 1.1 christos size = 16;
814 1.1 christos }
815 1.1 christos
816 1.1 christos break;
817 1.1 christos
818 1.1 christos case hppa_stub_export:
819 1.1 christos /* Branches are relative. This is where we are going to. */
820 1.1 christos sym_value = (hsh->target_value
821 1.1 christos + hsh->target_section->output_offset
822 1.1 christos + hsh->target_section->output_section->vma);
823 1.1 christos
824 1.1 christos /* And this is where we are coming from. */
825 1.1 christos sym_value -= (hsh->stub_offset
826 1.1 christos + stub_sec->output_offset
827 1.1 christos + stub_sec->output_section->vma);
828 1.1 christos
829 1.1 christos if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
830 1.1 christos && (!htab->has_22bit_branch
831 1.1 christos || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
832 1.1 christos {
833 1.1 christos (*_bfd_error_handler)
834 1.1 christos (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
835 1.1 christos hsh->target_section->owner,
836 1.1 christos stub_sec,
837 1.1 christos (long) hsh->stub_offset,
838 1.1 christos hsh->bh_root.string);
839 1.1 christos bfd_set_error (bfd_error_bad_value);
840 1.1 christos return FALSE;
841 1.1 christos }
842 1.1 christos
843 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
844 1.1 christos if (!htab->has_22bit_branch)
845 1.1 christos insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
846 1.1 christos else
847 1.1 christos insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
848 1.1 christos bfd_put_32 (stub_bfd, insn, loc);
849 1.1 christos
850 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
851 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
852 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
853 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
854 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
855 1.1 christos
856 1.1 christos /* Point the function symbol at the stub. */
857 1.1 christos hsh->hh->eh.root.u.def.section = stub_sec;
858 1.1 christos hsh->hh->eh.root.u.def.value = stub_sec->size;
859 1.1 christos
860 1.1 christos size = 24;
861 1.1 christos break;
862 1.1 christos
863 1.1 christos default:
864 1.1 christos BFD_FAIL ();
865 1.1 christos return FALSE;
866 1.1 christos }
867 1.1 christos
868 1.1 christos stub_sec->size += size;
869 1.1 christos return TRUE;
870 1.1 christos }
871 1.1 christos
872 1.1 christos #undef LDIL_R1
873 1.1 christos #undef BE_SR4_R1
874 1.1 christos #undef BL_R1
875 1.1 christos #undef ADDIL_R1
876 1.1 christos #undef DEPI_R1
877 1.1 christos #undef LDW_R1_R21
878 1.1 christos #undef LDW_R1_DLT
879 1.1 christos #undef LDW_R1_R19
880 1.1 christos #undef ADDIL_R19
881 1.1 christos #undef LDW_R1_DP
882 1.1 christos #undef LDSID_R21_R1
883 1.1 christos #undef MTSP_R1
884 1.1 christos #undef BE_SR0_R21
885 1.1 christos #undef STW_RP
886 1.1 christos #undef BV_R0_R21
887 1.1 christos #undef BL_RP
888 1.1 christos #undef NOP
889 1.1 christos #undef LDW_RP
890 1.1 christos #undef LDSID_RP_R1
891 1.1 christos #undef BE_SR0_RP
892 1.1 christos
893 1.1 christos /* As above, but don't actually build the stub. Just bump offset so
894 1.1 christos we know stub section sizes. */
895 1.1 christos
896 1.1 christos static bfd_boolean
897 1.1 christos hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
898 1.1 christos {
899 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
900 1.1 christos struct elf32_hppa_link_hash_table *htab;
901 1.1 christos int size;
902 1.1 christos
903 1.1 christos /* Massage our args to the form they really have. */
904 1.1 christos hsh = hppa_stub_hash_entry (bh);
905 1.1 christos htab = in_arg;
906 1.1 christos
907 1.1 christos if (hsh->stub_type == hppa_stub_long_branch)
908 1.1 christos size = 8;
909 1.1 christos else if (hsh->stub_type == hppa_stub_long_branch_shared)
910 1.1 christos size = 12;
911 1.1 christos else if (hsh->stub_type == hppa_stub_export)
912 1.1 christos size = 24;
913 1.1 christos else /* hppa_stub_import or hppa_stub_import_shared. */
914 1.1 christos {
915 1.1 christos if (htab->multi_subspace)
916 1.1 christos size = 28;
917 1.1 christos else
918 1.1 christos size = 16;
919 1.1 christos }
920 1.1 christos
921 1.1 christos hsh->stub_sec->size += size;
922 1.1 christos return TRUE;
923 1.1 christos }
924 1.1 christos
925 1.1 christos /* Return nonzero if ABFD represents an HPPA ELF32 file.
926 1.1 christos Additionally we set the default architecture and machine. */
927 1.1 christos
928 1.1 christos static bfd_boolean
929 1.1 christos elf32_hppa_object_p (bfd *abfd)
930 1.1 christos {
931 1.1 christos Elf_Internal_Ehdr * i_ehdrp;
932 1.1 christos unsigned int flags;
933 1.1 christos
934 1.1 christos i_ehdrp = elf_elfheader (abfd);
935 1.1 christos if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
936 1.1 christos {
937 1.1.1.2 christos /* GCC on hppa-linux produces binaries with OSABI=GNU,
938 1.1 christos but the kernel produces corefiles with OSABI=SysV. */
939 1.1.1.2 christos if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
940 1.1 christos i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
941 1.1 christos return FALSE;
942 1.1 christos }
943 1.1 christos else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
944 1.1 christos {
945 1.1 christos /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
946 1.1 christos but the kernel produces corefiles with OSABI=SysV. */
947 1.1 christos if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
948 1.1 christos i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
949 1.1 christos return FALSE;
950 1.1 christos }
951 1.1 christos else
952 1.1 christos {
953 1.1 christos if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
954 1.1 christos return FALSE;
955 1.1 christos }
956 1.1 christos
957 1.1 christos flags = i_ehdrp->e_flags;
958 1.1 christos switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
959 1.1 christos {
960 1.1 christos case EFA_PARISC_1_0:
961 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
962 1.1 christos case EFA_PARISC_1_1:
963 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
964 1.1 christos case EFA_PARISC_2_0:
965 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
966 1.1 christos case EFA_PARISC_2_0 | EF_PARISC_WIDE:
967 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
968 1.1 christos }
969 1.1 christos return TRUE;
970 1.1 christos }
971 1.1 christos
972 1.1 christos /* Create the .plt and .got sections, and set up our hash table
973 1.1 christos short-cuts to various dynamic sections. */
974 1.1 christos
975 1.1 christos static bfd_boolean
976 1.1 christos elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
977 1.1 christos {
978 1.1 christos struct elf32_hppa_link_hash_table *htab;
979 1.1 christos struct elf_link_hash_entry *eh;
980 1.1 christos
981 1.1 christos /* Don't try to create the .plt and .got twice. */
982 1.1 christos htab = hppa_link_hash_table (info);
983 1.1 christos if (htab == NULL)
984 1.1 christos return FALSE;
985 1.1 christos if (htab->splt != NULL)
986 1.1 christos return TRUE;
987 1.1 christos
988 1.1 christos /* Call the generic code to do most of the work. */
989 1.1 christos if (! _bfd_elf_create_dynamic_sections (abfd, info))
990 1.1 christos return FALSE;
991 1.1 christos
992 1.1.1.2 christos htab->splt = bfd_get_linker_section (abfd, ".plt");
993 1.1.1.2 christos htab->srelplt = bfd_get_linker_section (abfd, ".rela.plt");
994 1.1 christos
995 1.1.1.2 christos htab->sgot = bfd_get_linker_section (abfd, ".got");
996 1.1.1.2 christos htab->srelgot = bfd_get_linker_section (abfd, ".rela.got");
997 1.1 christos
998 1.1.1.2 christos htab->sdynbss = bfd_get_linker_section (abfd, ".dynbss");
999 1.1.1.2 christos htab->srelbss = bfd_get_linker_section (abfd, ".rela.bss");
1000 1.1 christos
1001 1.1 christos /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
1002 1.1 christos application, because __canonicalize_funcptr_for_compare needs it. */
1003 1.1 christos eh = elf_hash_table (info)->hgot;
1004 1.1 christos eh->forced_local = 0;
1005 1.1 christos eh->other = STV_DEFAULT;
1006 1.1 christos return bfd_elf_link_record_dynamic_symbol (info, eh);
1007 1.1 christos }
1008 1.1 christos
1009 1.1 christos /* Copy the extra info we tack onto an elf_link_hash_entry. */
1010 1.1 christos
1011 1.1 christos static void
1012 1.1 christos elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
1013 1.1 christos struct elf_link_hash_entry *eh_dir,
1014 1.1 christos struct elf_link_hash_entry *eh_ind)
1015 1.1 christos {
1016 1.1 christos struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
1017 1.1 christos
1018 1.1 christos hh_dir = hppa_elf_hash_entry (eh_dir);
1019 1.1 christos hh_ind = hppa_elf_hash_entry (eh_ind);
1020 1.1 christos
1021 1.1 christos if (hh_ind->dyn_relocs != NULL)
1022 1.1 christos {
1023 1.1 christos if (hh_dir->dyn_relocs != NULL)
1024 1.1 christos {
1025 1.1 christos struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1026 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
1027 1.1 christos
1028 1.1 christos /* Add reloc counts against the indirect sym to the direct sym
1029 1.1 christos list. Merge any entries against the same section. */
1030 1.1 christos for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
1031 1.1 christos {
1032 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_q;
1033 1.1 christos
1034 1.1 christos for (hdh_q = hh_dir->dyn_relocs;
1035 1.1 christos hdh_q != NULL;
1036 1.1 christos hdh_q = hdh_q->hdh_next)
1037 1.1 christos if (hdh_q->sec == hdh_p->sec)
1038 1.1 christos {
1039 1.1 christos #if RELATIVE_DYNRELOCS
1040 1.1 christos hdh_q->relative_count += hdh_p->relative_count;
1041 1.1 christos #endif
1042 1.1 christos hdh_q->count += hdh_p->count;
1043 1.1 christos *hdh_pp = hdh_p->hdh_next;
1044 1.1 christos break;
1045 1.1 christos }
1046 1.1 christos if (hdh_q == NULL)
1047 1.1 christos hdh_pp = &hdh_p->hdh_next;
1048 1.1 christos }
1049 1.1 christos *hdh_pp = hh_dir->dyn_relocs;
1050 1.1 christos }
1051 1.1 christos
1052 1.1 christos hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1053 1.1 christos hh_ind->dyn_relocs = NULL;
1054 1.1 christos }
1055 1.1 christos
1056 1.1 christos if (ELIMINATE_COPY_RELOCS
1057 1.1 christos && eh_ind->root.type != bfd_link_hash_indirect
1058 1.1 christos && eh_dir->dynamic_adjusted)
1059 1.1 christos {
1060 1.1 christos /* If called to transfer flags for a weakdef during processing
1061 1.1 christos of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1062 1.1 christos We clear it ourselves for ELIMINATE_COPY_RELOCS. */
1063 1.1 christos eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
1064 1.1 christos eh_dir->ref_regular |= eh_ind->ref_regular;
1065 1.1 christos eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1066 1.1 christos eh_dir->needs_plt |= eh_ind->needs_plt;
1067 1.1 christos }
1068 1.1 christos else
1069 1.1 christos {
1070 1.1 christos if (eh_ind->root.type == bfd_link_hash_indirect
1071 1.1 christos && eh_dir->got.refcount <= 0)
1072 1.1 christos {
1073 1.1 christos hh_dir->tls_type = hh_ind->tls_type;
1074 1.1 christos hh_ind->tls_type = GOT_UNKNOWN;
1075 1.1 christos }
1076 1.1 christos
1077 1.1 christos _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1078 1.1 christos }
1079 1.1 christos }
1080 1.1 christos
1081 1.1 christos static int
1082 1.1 christos elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1083 1.1 christos int r_type, int is_local ATTRIBUTE_UNUSED)
1084 1.1 christos {
1085 1.1 christos /* For now we don't support linker optimizations. */
1086 1.1 christos return r_type;
1087 1.1 christos }
1088 1.1 christos
1089 1.1 christos /* Return a pointer to the local GOT, PLT and TLS reference counts
1090 1.1 christos for ABFD. Returns NULL if the storage allocation fails. */
1091 1.1 christos
1092 1.1 christos static bfd_signed_vma *
1093 1.1 christos hppa32_elf_local_refcounts (bfd *abfd)
1094 1.1 christos {
1095 1.1 christos Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1096 1.1 christos bfd_signed_vma *local_refcounts;
1097 1.1.1.2 christos
1098 1.1 christos local_refcounts = elf_local_got_refcounts (abfd);
1099 1.1 christos if (local_refcounts == NULL)
1100 1.1 christos {
1101 1.1 christos bfd_size_type size;
1102 1.1 christos
1103 1.1 christos /* Allocate space for local GOT and PLT reference
1104 1.1 christos counts. Done this way to save polluting elf_obj_tdata
1105 1.1 christos with another target specific pointer. */
1106 1.1 christos size = symtab_hdr->sh_info;
1107 1.1 christos size *= 2 * sizeof (bfd_signed_vma);
1108 1.1 christos /* Add in space to store the local GOT TLS types. */
1109 1.1 christos size += symtab_hdr->sh_info;
1110 1.1 christos local_refcounts = bfd_zalloc (abfd, size);
1111 1.1 christos if (local_refcounts == NULL)
1112 1.1 christos return NULL;
1113 1.1 christos elf_local_got_refcounts (abfd) = local_refcounts;
1114 1.1 christos memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1115 1.1 christos symtab_hdr->sh_info);
1116 1.1 christos }
1117 1.1 christos return local_refcounts;
1118 1.1 christos }
1119 1.1 christos
1120 1.1 christos
1121 1.1 christos /* Look through the relocs for a section during the first phase, and
1122 1.1 christos calculate needed space in the global offset table, procedure linkage
1123 1.1 christos table, and dynamic reloc sections. At this point we haven't
1124 1.1 christos necessarily read all the input files. */
1125 1.1 christos
1126 1.1 christos static bfd_boolean
1127 1.1 christos elf32_hppa_check_relocs (bfd *abfd,
1128 1.1 christos struct bfd_link_info *info,
1129 1.1 christos asection *sec,
1130 1.1 christos const Elf_Internal_Rela *relocs)
1131 1.1 christos {
1132 1.1 christos Elf_Internal_Shdr *symtab_hdr;
1133 1.1 christos struct elf_link_hash_entry **eh_syms;
1134 1.1 christos const Elf_Internal_Rela *rela;
1135 1.1 christos const Elf_Internal_Rela *rela_end;
1136 1.1 christos struct elf32_hppa_link_hash_table *htab;
1137 1.1 christos asection *sreloc;
1138 1.1 christos int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
1139 1.1 christos
1140 1.1 christos if (info->relocatable)
1141 1.1 christos return TRUE;
1142 1.1 christos
1143 1.1 christos htab = hppa_link_hash_table (info);
1144 1.1 christos if (htab == NULL)
1145 1.1 christos return FALSE;
1146 1.1 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1147 1.1 christos eh_syms = elf_sym_hashes (abfd);
1148 1.1 christos sreloc = NULL;
1149 1.1 christos
1150 1.1 christos rela_end = relocs + sec->reloc_count;
1151 1.1 christos for (rela = relocs; rela < rela_end; rela++)
1152 1.1 christos {
1153 1.1 christos enum {
1154 1.1 christos NEED_GOT = 1,
1155 1.1 christos NEED_PLT = 2,
1156 1.1 christos NEED_DYNREL = 4,
1157 1.1 christos PLT_PLABEL = 8
1158 1.1 christos };
1159 1.1 christos
1160 1.1 christos unsigned int r_symndx, r_type;
1161 1.1 christos struct elf32_hppa_link_hash_entry *hh;
1162 1.1 christos int need_entry = 0;
1163 1.1 christos
1164 1.1 christos r_symndx = ELF32_R_SYM (rela->r_info);
1165 1.1 christos
1166 1.1 christos if (r_symndx < symtab_hdr->sh_info)
1167 1.1 christos hh = NULL;
1168 1.1 christos else
1169 1.1 christos {
1170 1.1 christos hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
1171 1.1 christos while (hh->eh.root.type == bfd_link_hash_indirect
1172 1.1 christos || hh->eh.root.type == bfd_link_hash_warning)
1173 1.1 christos hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
1174 1.1.1.3 christos
1175 1.1.1.3 christos /* PR15323, ref flags aren't set for references in the same
1176 1.1.1.3 christos object. */
1177 1.1.1.3 christos hh->eh.root.non_ir_ref = 1;
1178 1.1 christos }
1179 1.1 christos
1180 1.1 christos r_type = ELF32_R_TYPE (rela->r_info);
1181 1.1 christos r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
1182 1.1 christos
1183 1.1 christos switch (r_type)
1184 1.1 christos {
1185 1.1 christos case R_PARISC_DLTIND14F:
1186 1.1 christos case R_PARISC_DLTIND14R:
1187 1.1 christos case R_PARISC_DLTIND21L:
1188 1.1 christos /* This symbol requires a global offset table entry. */
1189 1.1 christos need_entry = NEED_GOT;
1190 1.1 christos break;
1191 1.1 christos
1192 1.1 christos case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1193 1.1 christos case R_PARISC_PLABEL21L:
1194 1.1 christos case R_PARISC_PLABEL32:
1195 1.1 christos /* If the addend is non-zero, we break badly. */
1196 1.1 christos if (rela->r_addend != 0)
1197 1.1 christos abort ();
1198 1.1 christos
1199 1.1 christos /* If we are creating a shared library, then we need to
1200 1.1 christos create a PLT entry for all PLABELs, because PLABELs with
1201 1.1 christos local symbols may be passed via a pointer to another
1202 1.1 christos object. Additionally, output a dynamic relocation
1203 1.1 christos pointing to the PLT entry.
1204 1.1 christos
1205 1.1 christos For executables, the original 32-bit ABI allowed two
1206 1.1 christos different styles of PLABELs (function pointers): For
1207 1.1 christos global functions, the PLABEL word points into the .plt
1208 1.1 christos two bytes past a (function address, gp) pair, and for
1209 1.1 christos local functions the PLABEL points directly at the
1210 1.1 christos function. The magic +2 for the first type allows us to
1211 1.1 christos differentiate between the two. As you can imagine, this
1212 1.1 christos is a real pain when it comes to generating code to call
1213 1.1 christos functions indirectly or to compare function pointers.
1214 1.1 christos We avoid the mess by always pointing a PLABEL into the
1215 1.1 christos .plt, even for local functions. */
1216 1.1 christos need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
1217 1.1 christos break;
1218 1.1 christos
1219 1.1 christos case R_PARISC_PCREL12F:
1220 1.1 christos htab->has_12bit_branch = 1;
1221 1.1 christos goto branch_common;
1222 1.1 christos
1223 1.1 christos case R_PARISC_PCREL17C:
1224 1.1 christos case R_PARISC_PCREL17F:
1225 1.1 christos htab->has_17bit_branch = 1;
1226 1.1 christos goto branch_common;
1227 1.1 christos
1228 1.1 christos case R_PARISC_PCREL22F:
1229 1.1 christos htab->has_22bit_branch = 1;
1230 1.1 christos branch_common:
1231 1.1 christos /* Function calls might need to go through the .plt, and
1232 1.1 christos might require long branch stubs. */
1233 1.1 christos if (hh == NULL)
1234 1.1 christos {
1235 1.1 christos /* We know local syms won't need a .plt entry, and if
1236 1.1 christos they need a long branch stub we can't guarantee that
1237 1.1 christos we can reach the stub. So just flag an error later
1238 1.1 christos if we're doing a shared link and find we need a long
1239 1.1 christos branch stub. */
1240 1.1 christos continue;
1241 1.1 christos }
1242 1.1 christos else
1243 1.1 christos {
1244 1.1 christos /* Global symbols will need a .plt entry if they remain
1245 1.1 christos global, and in most cases won't need a long branch
1246 1.1 christos stub. Unfortunately, we have to cater for the case
1247 1.1 christos where a symbol is forced local by versioning, or due
1248 1.1 christos to symbolic linking, and we lose the .plt entry. */
1249 1.1 christos need_entry = NEED_PLT;
1250 1.1 christos if (hh->eh.type == STT_PARISC_MILLI)
1251 1.1 christos need_entry = 0;
1252 1.1 christos }
1253 1.1 christos break;
1254 1.1 christos
1255 1.1 christos case R_PARISC_SEGBASE: /* Used to set segment base. */
1256 1.1 christos case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
1257 1.1 christos case R_PARISC_PCREL14F: /* PC relative load/store. */
1258 1.1 christos case R_PARISC_PCREL14R:
1259 1.1 christos case R_PARISC_PCREL17R: /* External branches. */
1260 1.1 christos case R_PARISC_PCREL21L: /* As above, and for load/store too. */
1261 1.1 christos case R_PARISC_PCREL32:
1262 1.1 christos /* We don't need to propagate the relocation if linking a
1263 1.1 christos shared object since these are section relative. */
1264 1.1 christos continue;
1265 1.1 christos
1266 1.1 christos case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1267 1.1 christos case R_PARISC_DPREL14R:
1268 1.1 christos case R_PARISC_DPREL21L:
1269 1.1 christos if (info->shared)
1270 1.1 christos {
1271 1.1 christos (*_bfd_error_handler)
1272 1.1 christos (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1273 1.1 christos abfd,
1274 1.1 christos elf_hppa_howto_table[r_type].name);
1275 1.1 christos bfd_set_error (bfd_error_bad_value);
1276 1.1 christos return FALSE;
1277 1.1 christos }
1278 1.1 christos /* Fall through. */
1279 1.1 christos
1280 1.1 christos case R_PARISC_DIR17F: /* Used for external branches. */
1281 1.1 christos case R_PARISC_DIR17R:
1282 1.1 christos case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1283 1.1 christos case R_PARISC_DIR14R:
1284 1.1 christos case R_PARISC_DIR21L: /* As above, and for ext branches too. */
1285 1.1 christos case R_PARISC_DIR32: /* .word relocs. */
1286 1.1 christos /* We may want to output a dynamic relocation later. */
1287 1.1 christos need_entry = NEED_DYNREL;
1288 1.1 christos break;
1289 1.1 christos
1290 1.1 christos /* This relocation describes the C++ object vtable hierarchy.
1291 1.1 christos Reconstruct it for later use during GC. */
1292 1.1 christos case R_PARISC_GNU_VTINHERIT:
1293 1.1 christos if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
1294 1.1 christos return FALSE;
1295 1.1 christos continue;
1296 1.1 christos
1297 1.1 christos /* This relocation describes which C++ vtable entries are actually
1298 1.1 christos used. Record for later use during GC. */
1299 1.1 christos case R_PARISC_GNU_VTENTRY:
1300 1.1 christos BFD_ASSERT (hh != NULL);
1301 1.1 christos if (hh != NULL
1302 1.1 christos && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
1303 1.1 christos return FALSE;
1304 1.1 christos continue;
1305 1.1 christos
1306 1.1 christos case R_PARISC_TLS_GD21L:
1307 1.1 christos case R_PARISC_TLS_GD14R:
1308 1.1 christos case R_PARISC_TLS_LDM21L:
1309 1.1 christos case R_PARISC_TLS_LDM14R:
1310 1.1 christos need_entry = NEED_GOT;
1311 1.1 christos break;
1312 1.1 christos
1313 1.1 christos case R_PARISC_TLS_IE21L:
1314 1.1 christos case R_PARISC_TLS_IE14R:
1315 1.1 christos if (info->shared)
1316 1.1 christos info->flags |= DF_STATIC_TLS;
1317 1.1 christos need_entry = NEED_GOT;
1318 1.1 christos break;
1319 1.1 christos
1320 1.1 christos default:
1321 1.1 christos continue;
1322 1.1 christos }
1323 1.1 christos
1324 1.1 christos /* Now carry out our orders. */
1325 1.1 christos if (need_entry & NEED_GOT)
1326 1.1 christos {
1327 1.1 christos switch (r_type)
1328 1.1 christos {
1329 1.1 christos default:
1330 1.1 christos tls_type = GOT_NORMAL;
1331 1.1 christos break;
1332 1.1 christos case R_PARISC_TLS_GD21L:
1333 1.1 christos case R_PARISC_TLS_GD14R:
1334 1.1 christos tls_type |= GOT_TLS_GD;
1335 1.1 christos break;
1336 1.1 christos case R_PARISC_TLS_LDM21L:
1337 1.1 christos case R_PARISC_TLS_LDM14R:
1338 1.1 christos tls_type |= GOT_TLS_LDM;
1339 1.1 christos break;
1340 1.1 christos case R_PARISC_TLS_IE21L:
1341 1.1 christos case R_PARISC_TLS_IE14R:
1342 1.1 christos tls_type |= GOT_TLS_IE;
1343 1.1 christos break;
1344 1.1 christos }
1345 1.1 christos
1346 1.1 christos /* Allocate space for a GOT entry, as well as a dynamic
1347 1.1 christos relocation for this entry. */
1348 1.1 christos if (htab->sgot == NULL)
1349 1.1 christos {
1350 1.1 christos if (htab->etab.dynobj == NULL)
1351 1.1 christos htab->etab.dynobj = abfd;
1352 1.1 christos if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
1353 1.1 christos return FALSE;
1354 1.1 christos }
1355 1.1 christos
1356 1.1 christos if (r_type == R_PARISC_TLS_LDM21L
1357 1.1 christos || r_type == R_PARISC_TLS_LDM14R)
1358 1.1 christos htab->tls_ldm_got.refcount += 1;
1359 1.1 christos else
1360 1.1 christos {
1361 1.1 christos if (hh != NULL)
1362 1.1 christos {
1363 1.1 christos hh->eh.got.refcount += 1;
1364 1.1 christos old_tls_type = hh->tls_type;
1365 1.1 christos }
1366 1.1 christos else
1367 1.1 christos {
1368 1.1 christos bfd_signed_vma *local_got_refcounts;
1369 1.1.1.2 christos
1370 1.1 christos /* This is a global offset table entry for a local symbol. */
1371 1.1 christos local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1372 1.1 christos if (local_got_refcounts == NULL)
1373 1.1 christos return FALSE;
1374 1.1 christos local_got_refcounts[r_symndx] += 1;
1375 1.1 christos
1376 1.1 christos old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1377 1.1 christos }
1378 1.1 christos
1379 1.1 christos tls_type |= old_tls_type;
1380 1.1 christos
1381 1.1 christos if (old_tls_type != tls_type)
1382 1.1 christos {
1383 1.1 christos if (hh != NULL)
1384 1.1 christos hh->tls_type = tls_type;
1385 1.1 christos else
1386 1.1 christos hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1387 1.1 christos }
1388 1.1 christos
1389 1.1 christos }
1390 1.1 christos }
1391 1.1 christos
1392 1.1 christos if (need_entry & NEED_PLT)
1393 1.1 christos {
1394 1.1 christos /* If we are creating a shared library, and this is a reloc
1395 1.1 christos against a weak symbol or a global symbol in a dynamic
1396 1.1 christos object, then we will be creating an import stub and a
1397 1.1 christos .plt entry for the symbol. Similarly, on a normal link
1398 1.1 christos to symbols defined in a dynamic object we'll need the
1399 1.1 christos import stub and a .plt entry. We don't know yet whether
1400 1.1 christos the symbol is defined or not, so make an entry anyway and
1401 1.1 christos clean up later in adjust_dynamic_symbol. */
1402 1.1 christos if ((sec->flags & SEC_ALLOC) != 0)
1403 1.1 christos {
1404 1.1 christos if (hh != NULL)
1405 1.1 christos {
1406 1.1 christos hh->eh.needs_plt = 1;
1407 1.1 christos hh->eh.plt.refcount += 1;
1408 1.1 christos
1409 1.1 christos /* If this .plt entry is for a plabel, mark it so
1410 1.1 christos that adjust_dynamic_symbol will keep the entry
1411 1.1 christos even if it appears to be local. */
1412 1.1 christos if (need_entry & PLT_PLABEL)
1413 1.1 christos hh->plabel = 1;
1414 1.1 christos }
1415 1.1 christos else if (need_entry & PLT_PLABEL)
1416 1.1 christos {
1417 1.1 christos bfd_signed_vma *local_got_refcounts;
1418 1.1 christos bfd_signed_vma *local_plt_refcounts;
1419 1.1 christos
1420 1.1 christos local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1421 1.1 christos if (local_got_refcounts == NULL)
1422 1.1 christos return FALSE;
1423 1.1 christos local_plt_refcounts = (local_got_refcounts
1424 1.1 christos + symtab_hdr->sh_info);
1425 1.1 christos local_plt_refcounts[r_symndx] += 1;
1426 1.1 christos }
1427 1.1 christos }
1428 1.1 christos }
1429 1.1 christos
1430 1.1 christos if (need_entry & NEED_DYNREL)
1431 1.1 christos {
1432 1.1 christos /* Flag this symbol as having a non-got, non-plt reference
1433 1.1 christos so that we generate copy relocs if it turns out to be
1434 1.1 christos dynamic. */
1435 1.1 christos if (hh != NULL && !info->shared)
1436 1.1 christos hh->eh.non_got_ref = 1;
1437 1.1 christos
1438 1.1 christos /* If we are creating a shared library then we need to copy
1439 1.1 christos the reloc into the shared library. However, if we are
1440 1.1 christos linking with -Bsymbolic, we need only copy absolute
1441 1.1 christos relocs or relocs against symbols that are not defined in
1442 1.1 christos an object we are including in the link. PC- or DP- or
1443 1.1 christos DLT-relative relocs against any local sym or global sym
1444 1.1 christos with DEF_REGULAR set, can be discarded. At this point we
1445 1.1 christos have not seen all the input files, so it is possible that
1446 1.1 christos DEF_REGULAR is not set now but will be set later (it is
1447 1.1 christos never cleared). We account for that possibility below by
1448 1.1 christos storing information in the dyn_relocs field of the
1449 1.1 christos hash table entry.
1450 1.1 christos
1451 1.1 christos A similar situation to the -Bsymbolic case occurs when
1452 1.1 christos creating shared libraries and symbol visibility changes
1453 1.1 christos render the symbol local.
1454 1.1 christos
1455 1.1 christos As it turns out, all the relocs we will be creating here
1456 1.1 christos are absolute, so we cannot remove them on -Bsymbolic
1457 1.1 christos links or visibility changes anyway. A STUB_REL reloc
1458 1.1 christos is absolute too, as in that case it is the reloc in the
1459 1.1 christos stub we will be creating, rather than copying the PCREL
1460 1.1 christos reloc in the branch.
1461 1.1 christos
1462 1.1 christos If on the other hand, we are creating an executable, we
1463 1.1 christos may need to keep relocations for symbols satisfied by a
1464 1.1 christos dynamic library if we manage to avoid copy relocs for the
1465 1.1 christos symbol. */
1466 1.1 christos if ((info->shared
1467 1.1 christos && (sec->flags & SEC_ALLOC) != 0
1468 1.1 christos && (IS_ABSOLUTE_RELOC (r_type)
1469 1.1 christos || (hh != NULL
1470 1.1 christos && (!info->symbolic
1471 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak
1472 1.1 christos || !hh->eh.def_regular))))
1473 1.1 christos || (ELIMINATE_COPY_RELOCS
1474 1.1 christos && !info->shared
1475 1.1 christos && (sec->flags & SEC_ALLOC) != 0
1476 1.1 christos && hh != NULL
1477 1.1 christos && (hh->eh.root.type == bfd_link_hash_defweak
1478 1.1 christos || !hh->eh.def_regular)))
1479 1.1 christos {
1480 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
1481 1.1 christos struct elf32_hppa_dyn_reloc_entry **hdh_head;
1482 1.1 christos
1483 1.1 christos /* Create a reloc section in dynobj and make room for
1484 1.1 christos this reloc. */
1485 1.1 christos if (sreloc == NULL)
1486 1.1 christos {
1487 1.1 christos if (htab->etab.dynobj == NULL)
1488 1.1 christos htab->etab.dynobj = abfd;
1489 1.1 christos
1490 1.1 christos sreloc = _bfd_elf_make_dynamic_reloc_section
1491 1.1 christos (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1492 1.1 christos
1493 1.1 christos if (sreloc == NULL)
1494 1.1 christos {
1495 1.1 christos bfd_set_error (bfd_error_bad_value);
1496 1.1 christos return FALSE;
1497 1.1 christos }
1498 1.1 christos }
1499 1.1 christos
1500 1.1 christos /* If this is a global symbol, we count the number of
1501 1.1 christos relocations we need for this symbol. */
1502 1.1 christos if (hh != NULL)
1503 1.1 christos {
1504 1.1 christos hdh_head = &hh->dyn_relocs;
1505 1.1 christos }
1506 1.1 christos else
1507 1.1 christos {
1508 1.1 christos /* Track dynamic relocs needed for local syms too.
1509 1.1 christos We really need local syms available to do this
1510 1.1 christos easily. Oh well. */
1511 1.1 christos asection *sr;
1512 1.1 christos void *vpp;
1513 1.1 christos Elf_Internal_Sym *isym;
1514 1.1 christos
1515 1.1 christos isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1516 1.1 christos abfd, r_symndx);
1517 1.1 christos if (isym == NULL)
1518 1.1 christos return FALSE;
1519 1.1 christos
1520 1.1 christos sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1521 1.1 christos if (sr == NULL)
1522 1.1 christos sr = sec;
1523 1.1 christos
1524 1.1 christos vpp = &elf_section_data (sr)->local_dynrel;
1525 1.1 christos hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
1526 1.1 christos }
1527 1.1 christos
1528 1.1 christos hdh_p = *hdh_head;
1529 1.1 christos if (hdh_p == NULL || hdh_p->sec != sec)
1530 1.1 christos {
1531 1.1 christos hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
1532 1.1 christos if (hdh_p == NULL)
1533 1.1 christos return FALSE;
1534 1.1 christos hdh_p->hdh_next = *hdh_head;
1535 1.1 christos *hdh_head = hdh_p;
1536 1.1 christos hdh_p->sec = sec;
1537 1.1 christos hdh_p->count = 0;
1538 1.1 christos #if RELATIVE_DYNRELOCS
1539 1.1 christos hdh_p->relative_count = 0;
1540 1.1 christos #endif
1541 1.1 christos }
1542 1.1 christos
1543 1.1 christos hdh_p->count += 1;
1544 1.1 christos #if RELATIVE_DYNRELOCS
1545 1.1 christos if (!IS_ABSOLUTE_RELOC (rtype))
1546 1.1 christos hdh_p->relative_count += 1;
1547 1.1 christos #endif
1548 1.1 christos }
1549 1.1 christos }
1550 1.1 christos }
1551 1.1 christos
1552 1.1 christos return TRUE;
1553 1.1 christos }
1554 1.1 christos
1555 1.1 christos /* Return the section that should be marked against garbage collection
1556 1.1 christos for a given relocation. */
1557 1.1 christos
1558 1.1 christos static asection *
1559 1.1 christos elf32_hppa_gc_mark_hook (asection *sec,
1560 1.1 christos struct bfd_link_info *info,
1561 1.1 christos Elf_Internal_Rela *rela,
1562 1.1 christos struct elf_link_hash_entry *hh,
1563 1.1 christos Elf_Internal_Sym *sym)
1564 1.1 christos {
1565 1.1 christos if (hh != NULL)
1566 1.1 christos switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1567 1.1 christos {
1568 1.1 christos case R_PARISC_GNU_VTINHERIT:
1569 1.1 christos case R_PARISC_GNU_VTENTRY:
1570 1.1 christos return NULL;
1571 1.1 christos }
1572 1.1 christos
1573 1.1 christos return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
1574 1.1 christos }
1575 1.1 christos
1576 1.1 christos /* Update the got and plt entry reference counts for the section being
1577 1.1 christos removed. */
1578 1.1 christos
1579 1.1 christos static bfd_boolean
1580 1.1 christos elf32_hppa_gc_sweep_hook (bfd *abfd,
1581 1.1 christos struct bfd_link_info *info ATTRIBUTE_UNUSED,
1582 1.1 christos asection *sec,
1583 1.1 christos const Elf_Internal_Rela *relocs)
1584 1.1 christos {
1585 1.1 christos Elf_Internal_Shdr *symtab_hdr;
1586 1.1 christos struct elf_link_hash_entry **eh_syms;
1587 1.1 christos bfd_signed_vma *local_got_refcounts;
1588 1.1 christos bfd_signed_vma *local_plt_refcounts;
1589 1.1 christos const Elf_Internal_Rela *rela, *relend;
1590 1.1 christos struct elf32_hppa_link_hash_table *htab;
1591 1.1 christos
1592 1.1 christos if (info->relocatable)
1593 1.1 christos return TRUE;
1594 1.1 christos
1595 1.1 christos htab = hppa_link_hash_table (info);
1596 1.1 christos if (htab == NULL)
1597 1.1 christos return FALSE;
1598 1.1 christos
1599 1.1 christos elf_section_data (sec)->local_dynrel = NULL;
1600 1.1 christos
1601 1.1 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1602 1.1 christos eh_syms = elf_sym_hashes (abfd);
1603 1.1 christos local_got_refcounts = elf_local_got_refcounts (abfd);
1604 1.1 christos local_plt_refcounts = local_got_refcounts;
1605 1.1 christos if (local_plt_refcounts != NULL)
1606 1.1 christos local_plt_refcounts += symtab_hdr->sh_info;
1607 1.1 christos
1608 1.1 christos relend = relocs + sec->reloc_count;
1609 1.1 christos for (rela = relocs; rela < relend; rela++)
1610 1.1 christos {
1611 1.1 christos unsigned long r_symndx;
1612 1.1 christos unsigned int r_type;
1613 1.1 christos struct elf_link_hash_entry *eh = NULL;
1614 1.1 christos
1615 1.1 christos r_symndx = ELF32_R_SYM (rela->r_info);
1616 1.1 christos if (r_symndx >= symtab_hdr->sh_info)
1617 1.1 christos {
1618 1.1 christos struct elf32_hppa_link_hash_entry *hh;
1619 1.1 christos struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1620 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
1621 1.1 christos
1622 1.1 christos eh = eh_syms[r_symndx - symtab_hdr->sh_info];
1623 1.1 christos while (eh->root.type == bfd_link_hash_indirect
1624 1.1 christos || eh->root.type == bfd_link_hash_warning)
1625 1.1 christos eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
1626 1.1 christos hh = hppa_elf_hash_entry (eh);
1627 1.1 christos
1628 1.1 christos for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next)
1629 1.1 christos if (hdh_p->sec == sec)
1630 1.1 christos {
1631 1.1 christos /* Everything must go for SEC. */
1632 1.1 christos *hdh_pp = hdh_p->hdh_next;
1633 1.1 christos break;
1634 1.1 christos }
1635 1.1 christos }
1636 1.1 christos
1637 1.1 christos r_type = ELF32_R_TYPE (rela->r_info);
1638 1.1 christos r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
1639 1.1 christos
1640 1.1 christos switch (r_type)
1641 1.1 christos {
1642 1.1 christos case R_PARISC_DLTIND14F:
1643 1.1 christos case R_PARISC_DLTIND14R:
1644 1.1 christos case R_PARISC_DLTIND21L:
1645 1.1 christos case R_PARISC_TLS_GD21L:
1646 1.1 christos case R_PARISC_TLS_GD14R:
1647 1.1 christos case R_PARISC_TLS_IE21L:
1648 1.1 christos case R_PARISC_TLS_IE14R:
1649 1.1 christos if (eh != NULL)
1650 1.1 christos {
1651 1.1 christos if (eh->got.refcount > 0)
1652 1.1 christos eh->got.refcount -= 1;
1653 1.1 christos }
1654 1.1 christos else if (local_got_refcounts != NULL)
1655 1.1 christos {
1656 1.1 christos if (local_got_refcounts[r_symndx] > 0)
1657 1.1 christos local_got_refcounts[r_symndx] -= 1;
1658 1.1 christos }
1659 1.1 christos break;
1660 1.1 christos
1661 1.1 christos case R_PARISC_TLS_LDM21L:
1662 1.1 christos case R_PARISC_TLS_LDM14R:
1663 1.1 christos htab->tls_ldm_got.refcount -= 1;
1664 1.1 christos break;
1665 1.1 christos
1666 1.1 christos case R_PARISC_PCREL12F:
1667 1.1 christos case R_PARISC_PCREL17C:
1668 1.1 christos case R_PARISC_PCREL17F:
1669 1.1 christos case R_PARISC_PCREL22F:
1670 1.1 christos if (eh != NULL)
1671 1.1 christos {
1672 1.1 christos if (eh->plt.refcount > 0)
1673 1.1 christos eh->plt.refcount -= 1;
1674 1.1 christos }
1675 1.1 christos break;
1676 1.1 christos
1677 1.1 christos case R_PARISC_PLABEL14R:
1678 1.1 christos case R_PARISC_PLABEL21L:
1679 1.1 christos case R_PARISC_PLABEL32:
1680 1.1 christos if (eh != NULL)
1681 1.1 christos {
1682 1.1 christos if (eh->plt.refcount > 0)
1683 1.1 christos eh->plt.refcount -= 1;
1684 1.1 christos }
1685 1.1 christos else if (local_plt_refcounts != NULL)
1686 1.1 christos {
1687 1.1 christos if (local_plt_refcounts[r_symndx] > 0)
1688 1.1 christos local_plt_refcounts[r_symndx] -= 1;
1689 1.1 christos }
1690 1.1 christos break;
1691 1.1 christos
1692 1.1 christos default:
1693 1.1 christos break;
1694 1.1 christos }
1695 1.1 christos }
1696 1.1 christos
1697 1.1 christos return TRUE;
1698 1.1 christos }
1699 1.1 christos
1700 1.1 christos /* Support for core dump NOTE sections. */
1701 1.1 christos
1702 1.1 christos static bfd_boolean
1703 1.1 christos elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1704 1.1 christos {
1705 1.1 christos int offset;
1706 1.1 christos size_t size;
1707 1.1 christos
1708 1.1 christos switch (note->descsz)
1709 1.1 christos {
1710 1.1 christos default:
1711 1.1 christos return FALSE;
1712 1.1 christos
1713 1.1 christos case 396: /* Linux/hppa */
1714 1.1 christos /* pr_cursig */
1715 1.1.1.2 christos elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
1716 1.1 christos
1717 1.1 christos /* pr_pid */
1718 1.1.1.2 christos elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
1719 1.1 christos
1720 1.1 christos /* pr_reg */
1721 1.1 christos offset = 72;
1722 1.1 christos size = 320;
1723 1.1 christos
1724 1.1 christos break;
1725 1.1 christos }
1726 1.1 christos
1727 1.1 christos /* Make a ".reg/999" section. */
1728 1.1 christos return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1729 1.1 christos size, note->descpos + offset);
1730 1.1 christos }
1731 1.1 christos
1732 1.1 christos static bfd_boolean
1733 1.1 christos elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1734 1.1 christos {
1735 1.1 christos switch (note->descsz)
1736 1.1 christos {
1737 1.1 christos default:
1738 1.1 christos return FALSE;
1739 1.1 christos
1740 1.1 christos case 124: /* Linux/hppa elf_prpsinfo. */
1741 1.1.1.2 christos elf_tdata (abfd)->core->program
1742 1.1 christos = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
1743 1.1.1.2 christos elf_tdata (abfd)->core->command
1744 1.1 christos = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1745 1.1 christos }
1746 1.1 christos
1747 1.1 christos /* Note that for some reason, a spurious space is tacked
1748 1.1 christos onto the end of the args in some (at least one anyway)
1749 1.1 christos implementations, so strip it off if it exists. */
1750 1.1 christos {
1751 1.1.1.2 christos char *command = elf_tdata (abfd)->core->command;
1752 1.1 christos int n = strlen (command);
1753 1.1 christos
1754 1.1 christos if (0 < n && command[n - 1] == ' ')
1755 1.1 christos command[n - 1] = '\0';
1756 1.1 christos }
1757 1.1 christos
1758 1.1 christos return TRUE;
1759 1.1 christos }
1760 1.1 christos
1761 1.1 christos /* Our own version of hide_symbol, so that we can keep plt entries for
1762 1.1 christos plabels. */
1763 1.1 christos
1764 1.1 christos static void
1765 1.1 christos elf32_hppa_hide_symbol (struct bfd_link_info *info,
1766 1.1 christos struct elf_link_hash_entry *eh,
1767 1.1 christos bfd_boolean force_local)
1768 1.1 christos {
1769 1.1 christos if (force_local)
1770 1.1 christos {
1771 1.1 christos eh->forced_local = 1;
1772 1.1 christos if (eh->dynindx != -1)
1773 1.1 christos {
1774 1.1 christos eh->dynindx = -1;
1775 1.1 christos _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1776 1.1 christos eh->dynstr_index);
1777 1.1 christos }
1778 1.1.1.3 christos
1779 1.1.1.3 christos /* PR 16082: Remove version information from hidden symbol. */
1780 1.1.1.3 christos eh->verinfo.verdef = NULL;
1781 1.1.1.3 christos eh->verinfo.vertree = NULL;
1782 1.1 christos }
1783 1.1 christos
1784 1.1.1.2 christos /* STT_GNU_IFUNC symbol must go through PLT. */
1785 1.1.1.2 christos if (! hppa_elf_hash_entry (eh)->plabel
1786 1.1.1.2 christos && eh->type != STT_GNU_IFUNC)
1787 1.1 christos {
1788 1.1 christos eh->needs_plt = 0;
1789 1.1.1.2 christos eh->plt = elf_hash_table (info)->init_plt_offset;
1790 1.1 christos }
1791 1.1 christos }
1792 1.1 christos
1793 1.1 christos /* Adjust a symbol defined by a dynamic object and referenced by a
1794 1.1 christos regular object. The current definition is in some section of the
1795 1.1 christos dynamic object, but we're not including those sections. We have to
1796 1.1 christos change the definition to something the rest of the link can
1797 1.1 christos understand. */
1798 1.1 christos
1799 1.1 christos static bfd_boolean
1800 1.1 christos elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
1801 1.1 christos struct elf_link_hash_entry *eh)
1802 1.1 christos {
1803 1.1 christos struct elf32_hppa_link_hash_table *htab;
1804 1.1 christos asection *sec;
1805 1.1 christos
1806 1.1 christos /* If this is a function, put it in the procedure linkage table. We
1807 1.1 christos will fill in the contents of the procedure linkage table later. */
1808 1.1 christos if (eh->type == STT_FUNC
1809 1.1 christos || eh->needs_plt)
1810 1.1 christos {
1811 1.1.1.2 christos /* If the symbol is used by a plabel, we must allocate a PLT slot.
1812 1.1.1.2 christos The refcounts are not reliable when it has been hidden since
1813 1.1.1.2 christos hide_symbol can be called before the plabel flag is set. */
1814 1.1.1.2 christos if (hppa_elf_hash_entry (eh)->plabel
1815 1.1.1.2 christos && eh->plt.refcount <= 0)
1816 1.1.1.2 christos eh->plt.refcount = 1;
1817 1.1.1.2 christos
1818 1.1 christos if (eh->plt.refcount <= 0
1819 1.1 christos || (eh->def_regular
1820 1.1 christos && eh->root.type != bfd_link_hash_defweak
1821 1.1 christos && ! hppa_elf_hash_entry (eh)->plabel
1822 1.1 christos && (!info->shared || info->symbolic)))
1823 1.1 christos {
1824 1.1 christos /* The .plt entry is not needed when:
1825 1.1 christos a) Garbage collection has removed all references to the
1826 1.1 christos symbol, or
1827 1.1 christos b) We know for certain the symbol is defined in this
1828 1.1 christos object, and it's not a weak definition, nor is the symbol
1829 1.1 christos used by a plabel relocation. Either this object is the
1830 1.1 christos application or we are doing a shared symbolic link. */
1831 1.1 christos
1832 1.1 christos eh->plt.offset = (bfd_vma) -1;
1833 1.1 christos eh->needs_plt = 0;
1834 1.1 christos }
1835 1.1 christos
1836 1.1 christos return TRUE;
1837 1.1 christos }
1838 1.1 christos else
1839 1.1 christos eh->plt.offset = (bfd_vma) -1;
1840 1.1 christos
1841 1.1 christos /* If this is a weak symbol, and there is a real definition, the
1842 1.1 christos processor independent code will have arranged for us to see the
1843 1.1 christos real definition first, and we can just use the same value. */
1844 1.1 christos if (eh->u.weakdef != NULL)
1845 1.1 christos {
1846 1.1 christos if (eh->u.weakdef->root.type != bfd_link_hash_defined
1847 1.1 christos && eh->u.weakdef->root.type != bfd_link_hash_defweak)
1848 1.1 christos abort ();
1849 1.1 christos eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1850 1.1 christos eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
1851 1.1 christos if (ELIMINATE_COPY_RELOCS)
1852 1.1 christos eh->non_got_ref = eh->u.weakdef->non_got_ref;
1853 1.1 christos return TRUE;
1854 1.1 christos }
1855 1.1 christos
1856 1.1 christos /* This is a reference to a symbol defined by a dynamic object which
1857 1.1 christos is not a function. */
1858 1.1 christos
1859 1.1 christos /* If we are creating a shared library, we must presume that the
1860 1.1 christos only references to the symbol are via the global offset table.
1861 1.1 christos For such cases we need not do anything here; the relocations will
1862 1.1 christos be handled correctly by relocate_section. */
1863 1.1 christos if (info->shared)
1864 1.1 christos return TRUE;
1865 1.1 christos
1866 1.1 christos /* If there are no references to this symbol that do not use the
1867 1.1 christos GOT, we don't need to generate a copy reloc. */
1868 1.1 christos if (!eh->non_got_ref)
1869 1.1 christos return TRUE;
1870 1.1 christos
1871 1.1 christos if (ELIMINATE_COPY_RELOCS)
1872 1.1 christos {
1873 1.1 christos struct elf32_hppa_link_hash_entry *hh;
1874 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
1875 1.1 christos
1876 1.1 christos hh = hppa_elf_hash_entry (eh);
1877 1.1 christos for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
1878 1.1 christos {
1879 1.1 christos sec = hdh_p->sec->output_section;
1880 1.1 christos if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
1881 1.1 christos break;
1882 1.1 christos }
1883 1.1 christos
1884 1.1 christos /* If we didn't find any dynamic relocs in read-only sections, then
1885 1.1 christos we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1886 1.1 christos if (hdh_p == NULL)
1887 1.1 christos {
1888 1.1 christos eh->non_got_ref = 0;
1889 1.1 christos return TRUE;
1890 1.1 christos }
1891 1.1 christos }
1892 1.1 christos
1893 1.1 christos /* We must allocate the symbol in our .dynbss section, which will
1894 1.1 christos become part of the .bss section of the executable. There will be
1895 1.1 christos an entry for this symbol in the .dynsym section. The dynamic
1896 1.1 christos object will contain position independent code, so all references
1897 1.1 christos from the dynamic object to this symbol will go through the global
1898 1.1 christos offset table. The dynamic linker will use the .dynsym entry to
1899 1.1 christos determine the address it must put in the global offset table, so
1900 1.1 christos both the dynamic object and the regular object will refer to the
1901 1.1 christos same memory location for the variable. */
1902 1.1 christos
1903 1.1 christos htab = hppa_link_hash_table (info);
1904 1.1 christos if (htab == NULL)
1905 1.1 christos return FALSE;
1906 1.1 christos
1907 1.1 christos /* We must generate a COPY reloc to tell the dynamic linker to
1908 1.1 christos copy the initial value out of the dynamic object and into the
1909 1.1 christos runtime process image. */
1910 1.1.1.2 christos if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
1911 1.1 christos {
1912 1.1 christos htab->srelbss->size += sizeof (Elf32_External_Rela);
1913 1.1 christos eh->needs_copy = 1;
1914 1.1 christos }
1915 1.1 christos
1916 1.1 christos sec = htab->sdynbss;
1917 1.1 christos
1918 1.1.1.4 christos return _bfd_elf_adjust_dynamic_copy (info, eh, sec);
1919 1.1 christos }
1920 1.1 christos
1921 1.1 christos /* Allocate space in the .plt for entries that won't have relocations.
1922 1.1 christos ie. plabel entries. */
1923 1.1 christos
1924 1.1 christos static bfd_boolean
1925 1.1 christos allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
1926 1.1 christos {
1927 1.1 christos struct bfd_link_info *info;
1928 1.1 christos struct elf32_hppa_link_hash_table *htab;
1929 1.1 christos struct elf32_hppa_link_hash_entry *hh;
1930 1.1 christos asection *sec;
1931 1.1 christos
1932 1.1 christos if (eh->root.type == bfd_link_hash_indirect)
1933 1.1 christos return TRUE;
1934 1.1 christos
1935 1.1 christos info = (struct bfd_link_info *) inf;
1936 1.1 christos hh = hppa_elf_hash_entry (eh);
1937 1.1 christos htab = hppa_link_hash_table (info);
1938 1.1 christos if (htab == NULL)
1939 1.1 christos return FALSE;
1940 1.1 christos
1941 1.1 christos if (htab->etab.dynamic_sections_created
1942 1.1 christos && eh->plt.refcount > 0)
1943 1.1 christos {
1944 1.1 christos /* Make sure this symbol is output as a dynamic symbol.
1945 1.1 christos Undefined weak syms won't yet be marked as dynamic. */
1946 1.1 christos if (eh->dynindx == -1
1947 1.1 christos && !eh->forced_local
1948 1.1 christos && eh->type != STT_PARISC_MILLI)
1949 1.1 christos {
1950 1.1 christos if (! bfd_elf_link_record_dynamic_symbol (info, eh))
1951 1.1 christos return FALSE;
1952 1.1 christos }
1953 1.1 christos
1954 1.1 christos if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh))
1955 1.1 christos {
1956 1.1 christos /* Allocate these later. From this point on, h->plabel
1957 1.1 christos means that the plt entry is only used by a plabel.
1958 1.1 christos We'll be using a normal plt entry for this symbol, so
1959 1.1 christos clear the plabel indicator. */
1960 1.1.1.2 christos
1961 1.1 christos hh->plabel = 0;
1962 1.1 christos }
1963 1.1 christos else if (hh->plabel)
1964 1.1 christos {
1965 1.1 christos /* Make an entry in the .plt section for plabel references
1966 1.1 christos that won't have a .plt entry for other reasons. */
1967 1.1 christos sec = htab->splt;
1968 1.1 christos eh->plt.offset = sec->size;
1969 1.1 christos sec->size += PLT_ENTRY_SIZE;
1970 1.1 christos }
1971 1.1 christos else
1972 1.1 christos {
1973 1.1 christos /* No .plt entry needed. */
1974 1.1 christos eh->plt.offset = (bfd_vma) -1;
1975 1.1 christos eh->needs_plt = 0;
1976 1.1 christos }
1977 1.1 christos }
1978 1.1 christos else
1979 1.1 christos {
1980 1.1 christos eh->plt.offset = (bfd_vma) -1;
1981 1.1 christos eh->needs_plt = 0;
1982 1.1 christos }
1983 1.1 christos
1984 1.1 christos return TRUE;
1985 1.1 christos }
1986 1.1 christos
1987 1.1 christos /* Allocate space in .plt, .got and associated reloc sections for
1988 1.1 christos global syms. */
1989 1.1 christos
1990 1.1 christos static bfd_boolean
1991 1.1 christos allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
1992 1.1 christos {
1993 1.1 christos struct bfd_link_info *info;
1994 1.1 christos struct elf32_hppa_link_hash_table *htab;
1995 1.1 christos asection *sec;
1996 1.1 christos struct elf32_hppa_link_hash_entry *hh;
1997 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
1998 1.1 christos
1999 1.1 christos if (eh->root.type == bfd_link_hash_indirect)
2000 1.1 christos return TRUE;
2001 1.1 christos
2002 1.1 christos info = inf;
2003 1.1 christos htab = hppa_link_hash_table (info);
2004 1.1 christos if (htab == NULL)
2005 1.1 christos return FALSE;
2006 1.1 christos
2007 1.1 christos hh = hppa_elf_hash_entry (eh);
2008 1.1.1.2 christos
2009 1.1 christos if (htab->etab.dynamic_sections_created
2010 1.1 christos && eh->plt.offset != (bfd_vma) -1
2011 1.1 christos && !hh->plabel
2012 1.1 christos && eh->plt.refcount > 0)
2013 1.1 christos {
2014 1.1 christos /* Make an entry in the .plt section. */
2015 1.1 christos sec = htab->splt;
2016 1.1 christos eh->plt.offset = sec->size;
2017 1.1 christos sec->size += PLT_ENTRY_SIZE;
2018 1.1 christos
2019 1.1 christos /* We also need to make an entry in the .rela.plt section. */
2020 1.1 christos htab->srelplt->size += sizeof (Elf32_External_Rela);
2021 1.1 christos htab->need_plt_stub = 1;
2022 1.1 christos }
2023 1.1 christos
2024 1.1 christos if (eh->got.refcount > 0)
2025 1.1 christos {
2026 1.1 christos /* Make sure this symbol is output as a dynamic symbol.
2027 1.1 christos Undefined weak syms won't yet be marked as dynamic. */
2028 1.1 christos if (eh->dynindx == -1
2029 1.1 christos && !eh->forced_local
2030 1.1 christos && eh->type != STT_PARISC_MILLI)
2031 1.1 christos {
2032 1.1 christos if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2033 1.1 christos return FALSE;
2034 1.1 christos }
2035 1.1 christos
2036 1.1 christos sec = htab->sgot;
2037 1.1 christos eh->got.offset = sec->size;
2038 1.1 christos sec->size += GOT_ENTRY_SIZE;
2039 1.1 christos /* R_PARISC_TLS_GD* needs two GOT entries */
2040 1.1 christos if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2041 1.1 christos sec->size += GOT_ENTRY_SIZE * 2;
2042 1.1 christos else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2043 1.1 christos sec->size += GOT_ENTRY_SIZE;
2044 1.1 christos if (htab->etab.dynamic_sections_created
2045 1.1 christos && (info->shared
2046 1.1 christos || (eh->dynindx != -1
2047 1.1 christos && !eh->forced_local)))
2048 1.1 christos {
2049 1.1 christos htab->srelgot->size += sizeof (Elf32_External_Rela);
2050 1.1 christos if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2051 1.1 christos htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2052 1.1 christos else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2053 1.1 christos htab->srelgot->size += sizeof (Elf32_External_Rela);
2054 1.1 christos }
2055 1.1 christos }
2056 1.1 christos else
2057 1.1 christos eh->got.offset = (bfd_vma) -1;
2058 1.1 christos
2059 1.1 christos if (hh->dyn_relocs == NULL)
2060 1.1 christos return TRUE;
2061 1.1 christos
2062 1.1 christos /* If this is a -Bsymbolic shared link, then we need to discard all
2063 1.1 christos space allocated for dynamic pc-relative relocs against symbols
2064 1.1 christos defined in a regular object. For the normal shared case, discard
2065 1.1 christos space for relocs that have become local due to symbol visibility
2066 1.1 christos changes. */
2067 1.1 christos if (info->shared)
2068 1.1 christos {
2069 1.1 christos #if RELATIVE_DYNRELOCS
2070 1.1 christos if (SYMBOL_CALLS_LOCAL (info, eh))
2071 1.1 christos {
2072 1.1 christos struct elf32_hppa_dyn_reloc_entry **hdh_pp;
2073 1.1 christos
2074 1.1 christos for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
2075 1.1 christos {
2076 1.1 christos hdh_p->count -= hdh_p->relative_count;
2077 1.1 christos hdh_p->relative_count = 0;
2078 1.1 christos if (hdh_p->count == 0)
2079 1.1 christos *hdh_pp = hdh_p->hdh_next;
2080 1.1 christos else
2081 1.1 christos hdh_pp = &hdh_p->hdh_next;
2082 1.1 christos }
2083 1.1 christos }
2084 1.1 christos #endif
2085 1.1 christos
2086 1.1 christos /* Also discard relocs on undefined weak syms with non-default
2087 1.1 christos visibility. */
2088 1.1 christos if (hh->dyn_relocs != NULL
2089 1.1 christos && eh->root.type == bfd_link_hash_undefweak)
2090 1.1 christos {
2091 1.1 christos if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2092 1.1 christos hh->dyn_relocs = NULL;
2093 1.1 christos
2094 1.1 christos /* Make sure undefined weak symbols are output as a dynamic
2095 1.1 christos symbol in PIEs. */
2096 1.1 christos else if (eh->dynindx == -1
2097 1.1 christos && !eh->forced_local)
2098 1.1 christos {
2099 1.1 christos if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2100 1.1 christos return FALSE;
2101 1.1 christos }
2102 1.1 christos }
2103 1.1 christos }
2104 1.1 christos else
2105 1.1 christos {
2106 1.1 christos /* For the non-shared case, discard space for relocs against
2107 1.1 christos symbols which turn out to need copy relocs or are not
2108 1.1 christos dynamic. */
2109 1.1.1.2 christos
2110 1.1 christos if (!eh->non_got_ref
2111 1.1 christos && ((ELIMINATE_COPY_RELOCS
2112 1.1 christos && eh->def_dynamic
2113 1.1 christos && !eh->def_regular)
2114 1.1 christos || (htab->etab.dynamic_sections_created
2115 1.1 christos && (eh->root.type == bfd_link_hash_undefweak
2116 1.1 christos || eh->root.type == bfd_link_hash_undefined))))
2117 1.1 christos {
2118 1.1 christos /* Make sure this symbol is output as a dynamic symbol.
2119 1.1 christos Undefined weak syms won't yet be marked as dynamic. */
2120 1.1 christos if (eh->dynindx == -1
2121 1.1 christos && !eh->forced_local
2122 1.1 christos && eh->type != STT_PARISC_MILLI)
2123 1.1 christos {
2124 1.1 christos if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2125 1.1 christos return FALSE;
2126 1.1 christos }
2127 1.1 christos
2128 1.1 christos /* If that succeeded, we know we'll be keeping all the
2129 1.1 christos relocs. */
2130 1.1 christos if (eh->dynindx != -1)
2131 1.1 christos goto keep;
2132 1.1 christos }
2133 1.1 christos
2134 1.1 christos hh->dyn_relocs = NULL;
2135 1.1 christos return TRUE;
2136 1.1 christos
2137 1.1 christos keep: ;
2138 1.1 christos }
2139 1.1 christos
2140 1.1 christos /* Finally, allocate space. */
2141 1.1 christos for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
2142 1.1 christos {
2143 1.1 christos asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2144 1.1 christos sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
2145 1.1 christos }
2146 1.1 christos
2147 1.1 christos return TRUE;
2148 1.1 christos }
2149 1.1 christos
2150 1.1 christos /* This function is called via elf_link_hash_traverse to force
2151 1.1 christos millicode symbols local so they do not end up as globals in the
2152 1.1 christos dynamic symbol table. We ought to be able to do this in
2153 1.1 christos adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2154 1.1 christos for all dynamic symbols. Arguably, this is a bug in
2155 1.1 christos elf_adjust_dynamic_symbol. */
2156 1.1 christos
2157 1.1 christos static bfd_boolean
2158 1.1 christos clobber_millicode_symbols (struct elf_link_hash_entry *eh,
2159 1.1 christos struct bfd_link_info *info)
2160 1.1 christos {
2161 1.1 christos if (eh->type == STT_PARISC_MILLI
2162 1.1 christos && !eh->forced_local)
2163 1.1 christos {
2164 1.1 christos elf32_hppa_hide_symbol (info, eh, TRUE);
2165 1.1 christos }
2166 1.1 christos return TRUE;
2167 1.1 christos }
2168 1.1 christos
2169 1.1 christos /* Find any dynamic relocs that apply to read-only sections. */
2170 1.1 christos
2171 1.1 christos static bfd_boolean
2172 1.1 christos readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
2173 1.1 christos {
2174 1.1 christos struct elf32_hppa_link_hash_entry *hh;
2175 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
2176 1.1 christos
2177 1.1 christos hh = hppa_elf_hash_entry (eh);
2178 1.1 christos for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
2179 1.1 christos {
2180 1.1 christos asection *sec = hdh_p->sec->output_section;
2181 1.1 christos
2182 1.1 christos if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
2183 1.1 christos {
2184 1.1 christos struct bfd_link_info *info = inf;
2185 1.1 christos
2186 1.1 christos info->flags |= DF_TEXTREL;
2187 1.1 christos
2188 1.1 christos /* Not an error, just cut short the traversal. */
2189 1.1 christos return FALSE;
2190 1.1 christos }
2191 1.1 christos }
2192 1.1 christos return TRUE;
2193 1.1 christos }
2194 1.1 christos
2195 1.1 christos /* Set the sizes of the dynamic sections. */
2196 1.1 christos
2197 1.1 christos static bfd_boolean
2198 1.1 christos elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2199 1.1 christos struct bfd_link_info *info)
2200 1.1 christos {
2201 1.1 christos struct elf32_hppa_link_hash_table *htab;
2202 1.1 christos bfd *dynobj;
2203 1.1 christos bfd *ibfd;
2204 1.1 christos asection *sec;
2205 1.1 christos bfd_boolean relocs;
2206 1.1 christos
2207 1.1 christos htab = hppa_link_hash_table (info);
2208 1.1 christos if (htab == NULL)
2209 1.1 christos return FALSE;
2210 1.1 christos
2211 1.1 christos dynobj = htab->etab.dynobj;
2212 1.1 christos if (dynobj == NULL)
2213 1.1 christos abort ();
2214 1.1 christos
2215 1.1 christos if (htab->etab.dynamic_sections_created)
2216 1.1 christos {
2217 1.1 christos /* Set the contents of the .interp section to the interpreter. */
2218 1.1 christos if (info->executable)
2219 1.1 christos {
2220 1.1.1.2 christos sec = bfd_get_linker_section (dynobj, ".interp");
2221 1.1 christos if (sec == NULL)
2222 1.1 christos abort ();
2223 1.1 christos sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2224 1.1 christos sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2225 1.1 christos }
2226 1.1 christos
2227 1.1 christos /* Force millicode symbols local. */
2228 1.1 christos elf_link_hash_traverse (&htab->etab,
2229 1.1 christos clobber_millicode_symbols,
2230 1.1 christos info);
2231 1.1 christos }
2232 1.1 christos
2233 1.1 christos /* Set up .got and .plt offsets for local syms, and space for local
2234 1.1 christos dynamic relocs. */
2235 1.1.1.4 christos for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2236 1.1 christos {
2237 1.1 christos bfd_signed_vma *local_got;
2238 1.1 christos bfd_signed_vma *end_local_got;
2239 1.1 christos bfd_signed_vma *local_plt;
2240 1.1 christos bfd_signed_vma *end_local_plt;
2241 1.1 christos bfd_size_type locsymcount;
2242 1.1 christos Elf_Internal_Shdr *symtab_hdr;
2243 1.1 christos asection *srel;
2244 1.1 christos char *local_tls_type;
2245 1.1 christos
2246 1.1 christos if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2247 1.1 christos continue;
2248 1.1 christos
2249 1.1 christos for (sec = ibfd->sections; sec != NULL; sec = sec->next)
2250 1.1 christos {
2251 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
2252 1.1 christos
2253 1.1 christos for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2254 1.1 christos elf_section_data (sec)->local_dynrel);
2255 1.1 christos hdh_p != NULL;
2256 1.1 christos hdh_p = hdh_p->hdh_next)
2257 1.1 christos {
2258 1.1 christos if (!bfd_is_abs_section (hdh_p->sec)
2259 1.1 christos && bfd_is_abs_section (hdh_p->sec->output_section))
2260 1.1 christos {
2261 1.1 christos /* Input section has been discarded, either because
2262 1.1 christos it is a copy of a linkonce section or due to
2263 1.1 christos linker script /DISCARD/, so we'll be discarding
2264 1.1 christos the relocs too. */
2265 1.1 christos }
2266 1.1 christos else if (hdh_p->count != 0)
2267 1.1 christos {
2268 1.1 christos srel = elf_section_data (hdh_p->sec)->sreloc;
2269 1.1 christos srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2270 1.1 christos if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
2271 1.1 christos info->flags |= DF_TEXTREL;
2272 1.1 christos }
2273 1.1 christos }
2274 1.1 christos }
2275 1.1 christos
2276 1.1 christos local_got = elf_local_got_refcounts (ibfd);
2277 1.1 christos if (!local_got)
2278 1.1 christos continue;
2279 1.1 christos
2280 1.1 christos symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2281 1.1 christos locsymcount = symtab_hdr->sh_info;
2282 1.1 christos end_local_got = local_got + locsymcount;
2283 1.1 christos local_tls_type = hppa_elf_local_got_tls_type (ibfd);
2284 1.1 christos sec = htab->sgot;
2285 1.1 christos srel = htab->srelgot;
2286 1.1 christos for (; local_got < end_local_got; ++local_got)
2287 1.1 christos {
2288 1.1 christos if (*local_got > 0)
2289 1.1 christos {
2290 1.1 christos *local_got = sec->size;
2291 1.1 christos sec->size += GOT_ENTRY_SIZE;
2292 1.1 christos if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2293 1.1 christos sec->size += 2 * GOT_ENTRY_SIZE;
2294 1.1 christos else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2295 1.1 christos sec->size += GOT_ENTRY_SIZE;
2296 1.1.1.2 christos if (info->shared)
2297 1.1 christos {
2298 1.1 christos srel->size += sizeof (Elf32_External_Rela);
2299 1.1 christos if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2300 1.1 christos srel->size += 2 * sizeof (Elf32_External_Rela);
2301 1.1 christos else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2302 1.1 christos srel->size += sizeof (Elf32_External_Rela);
2303 1.1 christos }
2304 1.1 christos }
2305 1.1 christos else
2306 1.1 christos *local_got = (bfd_vma) -1;
2307 1.1 christos
2308 1.1 christos ++local_tls_type;
2309 1.1 christos }
2310 1.1 christos
2311 1.1 christos local_plt = end_local_got;
2312 1.1 christos end_local_plt = local_plt + locsymcount;
2313 1.1 christos if (! htab->etab.dynamic_sections_created)
2314 1.1 christos {
2315 1.1 christos /* Won't be used, but be safe. */
2316 1.1 christos for (; local_plt < end_local_plt; ++local_plt)
2317 1.1 christos *local_plt = (bfd_vma) -1;
2318 1.1 christos }
2319 1.1 christos else
2320 1.1 christos {
2321 1.1 christos sec = htab->splt;
2322 1.1 christos srel = htab->srelplt;
2323 1.1 christos for (; local_plt < end_local_plt; ++local_plt)
2324 1.1 christos {
2325 1.1 christos if (*local_plt > 0)
2326 1.1 christos {
2327 1.1 christos *local_plt = sec->size;
2328 1.1 christos sec->size += PLT_ENTRY_SIZE;
2329 1.1 christos if (info->shared)
2330 1.1 christos srel->size += sizeof (Elf32_External_Rela);
2331 1.1 christos }
2332 1.1 christos else
2333 1.1 christos *local_plt = (bfd_vma) -1;
2334 1.1 christos }
2335 1.1 christos }
2336 1.1 christos }
2337 1.1.1.2 christos
2338 1.1 christos if (htab->tls_ldm_got.refcount > 0)
2339 1.1 christos {
2340 1.1.1.2 christos /* Allocate 2 got entries and 1 dynamic reloc for
2341 1.1 christos R_PARISC_TLS_DTPMOD32 relocs. */
2342 1.1 christos htab->tls_ldm_got.offset = htab->sgot->size;
2343 1.1 christos htab->sgot->size += (GOT_ENTRY_SIZE * 2);
2344 1.1 christos htab->srelgot->size += sizeof (Elf32_External_Rela);
2345 1.1 christos }
2346 1.1 christos else
2347 1.1 christos htab->tls_ldm_got.offset = -1;
2348 1.1 christos
2349 1.1 christos /* Do all the .plt entries without relocs first. The dynamic linker
2350 1.1 christos uses the last .plt reloc to find the end of the .plt (and hence
2351 1.1 christos the start of the .got) for lazy linking. */
2352 1.1 christos elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
2353 1.1 christos
2354 1.1 christos /* Allocate global sym .plt and .got entries, and space for global
2355 1.1 christos sym dynamic relocs. */
2356 1.1 christos elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
2357 1.1 christos
2358 1.1 christos /* The check_relocs and adjust_dynamic_symbol entry points have
2359 1.1 christos determined the sizes of the various dynamic sections. Allocate
2360 1.1 christos memory for them. */
2361 1.1 christos relocs = FALSE;
2362 1.1 christos for (sec = dynobj->sections; sec != NULL; sec = sec->next)
2363 1.1 christos {
2364 1.1 christos if ((sec->flags & SEC_LINKER_CREATED) == 0)
2365 1.1 christos continue;
2366 1.1 christos
2367 1.1 christos if (sec == htab->splt)
2368 1.1 christos {
2369 1.1 christos if (htab->need_plt_stub)
2370 1.1 christos {
2371 1.1 christos /* Make space for the plt stub at the end of the .plt
2372 1.1 christos section. We want this stub right at the end, up
2373 1.1 christos against the .got section. */
2374 1.1 christos int gotalign = bfd_section_alignment (dynobj, htab->sgot);
2375 1.1 christos int pltalign = bfd_section_alignment (dynobj, sec);
2376 1.1 christos bfd_size_type mask;
2377 1.1 christos
2378 1.1 christos if (gotalign > pltalign)
2379 1.1.1.3 christos (void) bfd_set_section_alignment (dynobj, sec, gotalign);
2380 1.1 christos mask = ((bfd_size_type) 1 << gotalign) - 1;
2381 1.1 christos sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
2382 1.1 christos }
2383 1.1 christos }
2384 1.1 christos else if (sec == htab->sgot
2385 1.1 christos || sec == htab->sdynbss)
2386 1.1 christos ;
2387 1.1 christos else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
2388 1.1 christos {
2389 1.1 christos if (sec->size != 0)
2390 1.1 christos {
2391 1.1 christos /* Remember whether there are any reloc sections other
2392 1.1 christos than .rela.plt. */
2393 1.1 christos if (sec != htab->srelplt)
2394 1.1 christos relocs = TRUE;
2395 1.1 christos
2396 1.1 christos /* We use the reloc_count field as a counter if we need
2397 1.1 christos to copy relocs into the output file. */
2398 1.1 christos sec->reloc_count = 0;
2399 1.1 christos }
2400 1.1 christos }
2401 1.1 christos else
2402 1.1 christos {
2403 1.1 christos /* It's not one of our sections, so don't allocate space. */
2404 1.1 christos continue;
2405 1.1 christos }
2406 1.1 christos
2407 1.1 christos if (sec->size == 0)
2408 1.1 christos {
2409 1.1 christos /* If we don't need this section, strip it from the
2410 1.1 christos output file. This is mostly to handle .rela.bss and
2411 1.1 christos .rela.plt. We must create both sections in
2412 1.1 christos create_dynamic_sections, because they must be created
2413 1.1 christos before the linker maps input sections to output
2414 1.1 christos sections. The linker does that before
2415 1.1 christos adjust_dynamic_symbol is called, and it is that
2416 1.1 christos function which decides whether anything needs to go
2417 1.1 christos into these sections. */
2418 1.1 christos sec->flags |= SEC_EXCLUDE;
2419 1.1 christos continue;
2420 1.1 christos }
2421 1.1 christos
2422 1.1 christos if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2423 1.1 christos continue;
2424 1.1 christos
2425 1.1 christos /* Allocate memory for the section contents. Zero it, because
2426 1.1 christos we may not fill in all the reloc sections. */
2427 1.1 christos sec->contents = bfd_zalloc (dynobj, sec->size);
2428 1.1 christos if (sec->contents == NULL)
2429 1.1 christos return FALSE;
2430 1.1 christos }
2431 1.1 christos
2432 1.1 christos if (htab->etab.dynamic_sections_created)
2433 1.1 christos {
2434 1.1 christos /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2435 1.1 christos actually has nothing to do with the PLT, it is how we
2436 1.1 christos communicate the LTP value of a load module to the dynamic
2437 1.1 christos linker. */
2438 1.1 christos #define add_dynamic_entry(TAG, VAL) \
2439 1.1 christos _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2440 1.1 christos
2441 1.1 christos if (!add_dynamic_entry (DT_PLTGOT, 0))
2442 1.1 christos return FALSE;
2443 1.1 christos
2444 1.1 christos /* Add some entries to the .dynamic section. We fill in the
2445 1.1 christos values later, in elf32_hppa_finish_dynamic_sections, but we
2446 1.1 christos must add the entries now so that we get the correct size for
2447 1.1 christos the .dynamic section. The DT_DEBUG entry is filled in by the
2448 1.1 christos dynamic linker and used by the debugger. */
2449 1.1 christos if (info->executable)
2450 1.1 christos {
2451 1.1 christos if (!add_dynamic_entry (DT_DEBUG, 0))
2452 1.1 christos return FALSE;
2453 1.1 christos }
2454 1.1 christos
2455 1.1 christos if (htab->srelplt->size != 0)
2456 1.1 christos {
2457 1.1 christos if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2458 1.1 christos || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2459 1.1 christos || !add_dynamic_entry (DT_JMPREL, 0))
2460 1.1 christos return FALSE;
2461 1.1 christos }
2462 1.1 christos
2463 1.1 christos if (relocs)
2464 1.1 christos {
2465 1.1 christos if (!add_dynamic_entry (DT_RELA, 0)
2466 1.1 christos || !add_dynamic_entry (DT_RELASZ, 0)
2467 1.1 christos || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
2468 1.1 christos return FALSE;
2469 1.1 christos
2470 1.1 christos /* If any dynamic relocs apply to a read-only section,
2471 1.1 christos then we need a DT_TEXTREL entry. */
2472 1.1 christos if ((info->flags & DF_TEXTREL) == 0)
2473 1.1 christos elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
2474 1.1 christos
2475 1.1 christos if ((info->flags & DF_TEXTREL) != 0)
2476 1.1 christos {
2477 1.1 christos if (!add_dynamic_entry (DT_TEXTREL, 0))
2478 1.1 christos return FALSE;
2479 1.1 christos }
2480 1.1 christos }
2481 1.1 christos }
2482 1.1 christos #undef add_dynamic_entry
2483 1.1 christos
2484 1.1 christos return TRUE;
2485 1.1 christos }
2486 1.1 christos
2487 1.1 christos /* External entry points for sizing and building linker stubs. */
2488 1.1 christos
2489 1.1 christos /* Set up various things so that we can make a list of input sections
2490 1.1 christos for each output section included in the link. Returns -1 on error,
2491 1.1 christos 0 when no stubs will be needed, and 1 on success. */
2492 1.1 christos
2493 1.1 christos int
2494 1.1 christos elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
2495 1.1 christos {
2496 1.1 christos bfd *input_bfd;
2497 1.1 christos unsigned int bfd_count;
2498 1.1 christos int top_id, top_index;
2499 1.1 christos asection *section;
2500 1.1 christos asection **input_list, **list;
2501 1.1 christos bfd_size_type amt;
2502 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2503 1.1 christos
2504 1.1 christos if (htab == NULL)
2505 1.1 christos return -1;
2506 1.1 christos
2507 1.1 christos /* Count the number of input BFDs and find the top input section id. */
2508 1.1 christos for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
2509 1.1 christos input_bfd != NULL;
2510 1.1.1.4 christos input_bfd = input_bfd->link.next)
2511 1.1 christos {
2512 1.1 christos bfd_count += 1;
2513 1.1 christos for (section = input_bfd->sections;
2514 1.1 christos section != NULL;
2515 1.1 christos section = section->next)
2516 1.1 christos {
2517 1.1 christos if (top_id < section->id)
2518 1.1 christos top_id = section->id;
2519 1.1 christos }
2520 1.1 christos }
2521 1.1 christos htab->bfd_count = bfd_count;
2522 1.1 christos
2523 1.1 christos amt = sizeof (struct map_stub) * (top_id + 1);
2524 1.1 christos htab->stub_group = bfd_zmalloc (amt);
2525 1.1 christos if (htab->stub_group == NULL)
2526 1.1 christos return -1;
2527 1.1 christos
2528 1.1 christos /* We can't use output_bfd->section_count here to find the top output
2529 1.1 christos section index as some sections may have been removed, and
2530 1.1 christos strip_excluded_output_sections doesn't renumber the indices. */
2531 1.1 christos for (section = output_bfd->sections, top_index = 0;
2532 1.1 christos section != NULL;
2533 1.1 christos section = section->next)
2534 1.1 christos {
2535 1.1 christos if (top_index < section->index)
2536 1.1 christos top_index = section->index;
2537 1.1 christos }
2538 1.1 christos
2539 1.1 christos htab->top_index = top_index;
2540 1.1 christos amt = sizeof (asection *) * (top_index + 1);
2541 1.1 christos input_list = bfd_malloc (amt);
2542 1.1 christos htab->input_list = input_list;
2543 1.1 christos if (input_list == NULL)
2544 1.1 christos return -1;
2545 1.1 christos
2546 1.1 christos /* For sections we aren't interested in, mark their entries with a
2547 1.1 christos value we can check later. */
2548 1.1 christos list = input_list + top_index;
2549 1.1 christos do
2550 1.1 christos *list = bfd_abs_section_ptr;
2551 1.1 christos while (list-- != input_list);
2552 1.1 christos
2553 1.1 christos for (section = output_bfd->sections;
2554 1.1 christos section != NULL;
2555 1.1 christos section = section->next)
2556 1.1 christos {
2557 1.1 christos if ((section->flags & SEC_CODE) != 0)
2558 1.1 christos input_list[section->index] = NULL;
2559 1.1 christos }
2560 1.1 christos
2561 1.1 christos return 1;
2562 1.1 christos }
2563 1.1 christos
2564 1.1 christos /* The linker repeatedly calls this function for each input section,
2565 1.1 christos in the order that input sections are linked into output sections.
2566 1.1 christos Build lists of input sections to determine groupings between which
2567 1.1 christos we may insert linker stubs. */
2568 1.1 christos
2569 1.1 christos void
2570 1.1 christos elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
2571 1.1 christos {
2572 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2573 1.1 christos
2574 1.1 christos if (htab == NULL)
2575 1.1 christos return;
2576 1.1 christos
2577 1.1 christos if (isec->output_section->index <= htab->top_index)
2578 1.1 christos {
2579 1.1 christos asection **list = htab->input_list + isec->output_section->index;
2580 1.1 christos if (*list != bfd_abs_section_ptr)
2581 1.1 christos {
2582 1.1 christos /* Steal the link_sec pointer for our list. */
2583 1.1 christos #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2584 1.1 christos /* This happens to make the list in reverse order,
2585 1.1 christos which is what we want. */
2586 1.1 christos PREV_SEC (isec) = *list;
2587 1.1 christos *list = isec;
2588 1.1 christos }
2589 1.1 christos }
2590 1.1 christos }
2591 1.1 christos
2592 1.1 christos /* See whether we can group stub sections together. Grouping stub
2593 1.1 christos sections may result in fewer stubs. More importantly, we need to
2594 1.1 christos put all .init* and .fini* stubs at the beginning of the .init or
2595 1.1 christos .fini output sections respectively, because glibc splits the
2596 1.1 christos _init and _fini functions into multiple parts. Putting a stub in
2597 1.1 christos the middle of a function is not a good idea. */
2598 1.1 christos
2599 1.1 christos static void
2600 1.1 christos group_sections (struct elf32_hppa_link_hash_table *htab,
2601 1.1 christos bfd_size_type stub_group_size,
2602 1.1 christos bfd_boolean stubs_always_before_branch)
2603 1.1 christos {
2604 1.1 christos asection **list = htab->input_list + htab->top_index;
2605 1.1 christos do
2606 1.1 christos {
2607 1.1 christos asection *tail = *list;
2608 1.1 christos if (tail == bfd_abs_section_ptr)
2609 1.1 christos continue;
2610 1.1 christos while (tail != NULL)
2611 1.1 christos {
2612 1.1 christos asection *curr;
2613 1.1 christos asection *prev;
2614 1.1 christos bfd_size_type total;
2615 1.1 christos bfd_boolean big_sec;
2616 1.1 christos
2617 1.1 christos curr = tail;
2618 1.1 christos total = tail->size;
2619 1.1 christos big_sec = total >= stub_group_size;
2620 1.1 christos
2621 1.1 christos while ((prev = PREV_SEC (curr)) != NULL
2622 1.1 christos && ((total += curr->output_offset - prev->output_offset)
2623 1.1 christos < stub_group_size))
2624 1.1 christos curr = prev;
2625 1.1 christos
2626 1.1 christos /* OK, the size from the start of CURR to the end is less
2627 1.1 christos than 240000 bytes and thus can be handled by one stub
2628 1.1 christos section. (or the tail section is itself larger than
2629 1.1 christos 240000 bytes, in which case we may be toast.)
2630 1.1 christos We should really be keeping track of the total size of
2631 1.1 christos stubs added here, as stubs contribute to the final output
2632 1.1 christos section size. That's a little tricky, and this way will
2633 1.1 christos only break if stubs added total more than 22144 bytes, or
2634 1.1 christos 2768 long branch stubs. It seems unlikely for more than
2635 1.1 christos 2768 different functions to be called, especially from
2636 1.1 christos code only 240000 bytes long. This limit used to be
2637 1.1 christos 250000, but c++ code tends to generate lots of little
2638 1.1 christos functions, and sometimes violated the assumption. */
2639 1.1 christos do
2640 1.1 christos {
2641 1.1 christos prev = PREV_SEC (tail);
2642 1.1 christos /* Set up this stub group. */
2643 1.1 christos htab->stub_group[tail->id].link_sec = curr;
2644 1.1 christos }
2645 1.1 christos while (tail != curr && (tail = prev) != NULL);
2646 1.1 christos
2647 1.1 christos /* But wait, there's more! Input sections up to 240000
2648 1.1 christos bytes before the stub section can be handled by it too.
2649 1.1 christos Don't do this if we have a really large section after the
2650 1.1 christos stubs, as adding more stubs increases the chance that
2651 1.1 christos branches may not reach into the stub section. */
2652 1.1 christos if (!stubs_always_before_branch && !big_sec)
2653 1.1 christos {
2654 1.1 christos total = 0;
2655 1.1 christos while (prev != NULL
2656 1.1 christos && ((total += tail->output_offset - prev->output_offset)
2657 1.1 christos < stub_group_size))
2658 1.1 christos {
2659 1.1 christos tail = prev;
2660 1.1 christos prev = PREV_SEC (tail);
2661 1.1 christos htab->stub_group[tail->id].link_sec = curr;
2662 1.1 christos }
2663 1.1 christos }
2664 1.1 christos tail = prev;
2665 1.1 christos }
2666 1.1 christos }
2667 1.1 christos while (list-- != htab->input_list);
2668 1.1 christos free (htab->input_list);
2669 1.1 christos #undef PREV_SEC
2670 1.1 christos }
2671 1.1 christos
2672 1.1 christos /* Read in all local syms for all input bfds, and create hash entries
2673 1.1 christos for export stubs if we are building a multi-subspace shared lib.
2674 1.1 christos Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2675 1.1 christos
2676 1.1 christos static int
2677 1.1 christos get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
2678 1.1 christos {
2679 1.1 christos unsigned int bfd_indx;
2680 1.1 christos Elf_Internal_Sym *local_syms, **all_local_syms;
2681 1.1 christos int stub_changed = 0;
2682 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2683 1.1 christos
2684 1.1 christos if (htab == NULL)
2685 1.1 christos return -1;
2686 1.1 christos
2687 1.1 christos /* We want to read in symbol extension records only once. To do this
2688 1.1 christos we need to read in the local symbols in parallel and save them for
2689 1.1 christos later use; so hold pointers to the local symbols in an array. */
2690 1.1 christos bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
2691 1.1 christos all_local_syms = bfd_zmalloc (amt);
2692 1.1 christos htab->all_local_syms = all_local_syms;
2693 1.1 christos if (all_local_syms == NULL)
2694 1.1 christos return -1;
2695 1.1 christos
2696 1.1 christos /* Walk over all the input BFDs, swapping in local symbols.
2697 1.1 christos If we are creating a shared library, create hash entries for the
2698 1.1 christos export stubs. */
2699 1.1 christos for (bfd_indx = 0;
2700 1.1 christos input_bfd != NULL;
2701 1.1.1.4 christos input_bfd = input_bfd->link.next, bfd_indx++)
2702 1.1 christos {
2703 1.1 christos Elf_Internal_Shdr *symtab_hdr;
2704 1.1 christos
2705 1.1 christos /* We'll need the symbol table in a second. */
2706 1.1 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2707 1.1 christos if (symtab_hdr->sh_info == 0)
2708 1.1 christos continue;
2709 1.1 christos
2710 1.1 christos /* We need an array of the local symbols attached to the input bfd. */
2711 1.1 christos local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
2712 1.1 christos if (local_syms == NULL)
2713 1.1 christos {
2714 1.1 christos local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2715 1.1 christos symtab_hdr->sh_info, 0,
2716 1.1 christos NULL, NULL, NULL);
2717 1.1 christos /* Cache them for elf_link_input_bfd. */
2718 1.1 christos symtab_hdr->contents = (unsigned char *) local_syms;
2719 1.1 christos }
2720 1.1 christos if (local_syms == NULL)
2721 1.1 christos return -1;
2722 1.1 christos
2723 1.1 christos all_local_syms[bfd_indx] = local_syms;
2724 1.1 christos
2725 1.1 christos if (info->shared && htab->multi_subspace)
2726 1.1 christos {
2727 1.1 christos struct elf_link_hash_entry **eh_syms;
2728 1.1 christos struct elf_link_hash_entry **eh_symend;
2729 1.1 christos unsigned int symcount;
2730 1.1 christos
2731 1.1 christos symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2732 1.1 christos - symtab_hdr->sh_info);
2733 1.1 christos eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2734 1.1 christos eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
2735 1.1 christos
2736 1.1 christos /* Look through the global syms for functions; We need to
2737 1.1 christos build export stubs for all globally visible functions. */
2738 1.1 christos for (; eh_syms < eh_symend; eh_syms++)
2739 1.1 christos {
2740 1.1 christos struct elf32_hppa_link_hash_entry *hh;
2741 1.1 christos
2742 1.1 christos hh = hppa_elf_hash_entry (*eh_syms);
2743 1.1 christos
2744 1.1 christos while (hh->eh.root.type == bfd_link_hash_indirect
2745 1.1 christos || hh->eh.root.type == bfd_link_hash_warning)
2746 1.1 christos hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2747 1.1 christos
2748 1.1 christos /* At this point in the link, undefined syms have been
2749 1.1 christos resolved, so we need to check that the symbol was
2750 1.1 christos defined in this BFD. */
2751 1.1 christos if ((hh->eh.root.type == bfd_link_hash_defined
2752 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak)
2753 1.1 christos && hh->eh.type == STT_FUNC
2754 1.1 christos && hh->eh.root.u.def.section->output_section != NULL
2755 1.1 christos && (hh->eh.root.u.def.section->output_section->owner
2756 1.1 christos == output_bfd)
2757 1.1 christos && hh->eh.root.u.def.section->owner == input_bfd
2758 1.1 christos && hh->eh.def_regular
2759 1.1 christos && !hh->eh.forced_local
2760 1.1 christos && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
2761 1.1 christos {
2762 1.1 christos asection *sec;
2763 1.1 christos const char *stub_name;
2764 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
2765 1.1 christos
2766 1.1 christos sec = hh->eh.root.u.def.section;
2767 1.1 christos stub_name = hh_name (hh);
2768 1.1 christos hsh = hppa_stub_hash_lookup (&htab->bstab,
2769 1.1 christos stub_name,
2770 1.1 christos FALSE, FALSE);
2771 1.1 christos if (hsh == NULL)
2772 1.1 christos {
2773 1.1 christos hsh = hppa_add_stub (stub_name, sec, htab);
2774 1.1 christos if (!hsh)
2775 1.1 christos return -1;
2776 1.1 christos
2777 1.1 christos hsh->target_value = hh->eh.root.u.def.value;
2778 1.1 christos hsh->target_section = hh->eh.root.u.def.section;
2779 1.1 christos hsh->stub_type = hppa_stub_export;
2780 1.1 christos hsh->hh = hh;
2781 1.1 christos stub_changed = 1;
2782 1.1 christos }
2783 1.1 christos else
2784 1.1 christos {
2785 1.1 christos (*_bfd_error_handler) (_("%B: duplicate export stub %s"),
2786 1.1 christos input_bfd,
2787 1.1 christos stub_name);
2788 1.1 christos }
2789 1.1 christos }
2790 1.1 christos }
2791 1.1 christos }
2792 1.1 christos }
2793 1.1 christos
2794 1.1 christos return stub_changed;
2795 1.1 christos }
2796 1.1 christos
2797 1.1 christos /* Determine and set the size of the stub section for a final link.
2798 1.1 christos
2799 1.1 christos The basic idea here is to examine all the relocations looking for
2800 1.1 christos PC-relative calls to a target that is unreachable with a "bl"
2801 1.1 christos instruction. */
2802 1.1 christos
2803 1.1 christos bfd_boolean
2804 1.1 christos elf32_hppa_size_stubs
2805 1.1 christos (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2806 1.1 christos bfd_boolean multi_subspace, bfd_signed_vma group_size,
2807 1.1 christos asection * (*add_stub_section) (const char *, asection *),
2808 1.1 christos void (*layout_sections_again) (void))
2809 1.1 christos {
2810 1.1 christos bfd_size_type stub_group_size;
2811 1.1 christos bfd_boolean stubs_always_before_branch;
2812 1.1 christos bfd_boolean stub_changed;
2813 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2814 1.1 christos
2815 1.1 christos if (htab == NULL)
2816 1.1 christos return FALSE;
2817 1.1 christos
2818 1.1 christos /* Stash our params away. */
2819 1.1 christos htab->stub_bfd = stub_bfd;
2820 1.1 christos htab->multi_subspace = multi_subspace;
2821 1.1 christos htab->add_stub_section = add_stub_section;
2822 1.1 christos htab->layout_sections_again = layout_sections_again;
2823 1.1 christos stubs_always_before_branch = group_size < 0;
2824 1.1 christos if (group_size < 0)
2825 1.1 christos stub_group_size = -group_size;
2826 1.1 christos else
2827 1.1 christos stub_group_size = group_size;
2828 1.1 christos if (stub_group_size == 1)
2829 1.1 christos {
2830 1.1 christos /* Default values. */
2831 1.1 christos if (stubs_always_before_branch)
2832 1.1 christos {
2833 1.1 christos stub_group_size = 7680000;
2834 1.1 christos if (htab->has_17bit_branch || htab->multi_subspace)
2835 1.1 christos stub_group_size = 240000;
2836 1.1 christos if (htab->has_12bit_branch)
2837 1.1 christos stub_group_size = 7500;
2838 1.1 christos }
2839 1.1 christos else
2840 1.1 christos {
2841 1.1 christos stub_group_size = 6971392;
2842 1.1 christos if (htab->has_17bit_branch || htab->multi_subspace)
2843 1.1 christos stub_group_size = 217856;
2844 1.1 christos if (htab->has_12bit_branch)
2845 1.1 christos stub_group_size = 6808;
2846 1.1 christos }
2847 1.1 christos }
2848 1.1 christos
2849 1.1 christos group_sections (htab, stub_group_size, stubs_always_before_branch);
2850 1.1 christos
2851 1.1 christos switch (get_local_syms (output_bfd, info->input_bfds, info))
2852 1.1 christos {
2853 1.1 christos default:
2854 1.1 christos if (htab->all_local_syms)
2855 1.1 christos goto error_ret_free_local;
2856 1.1 christos return FALSE;
2857 1.1 christos
2858 1.1 christos case 0:
2859 1.1 christos stub_changed = FALSE;
2860 1.1 christos break;
2861 1.1 christos
2862 1.1 christos case 1:
2863 1.1 christos stub_changed = TRUE;
2864 1.1 christos break;
2865 1.1 christos }
2866 1.1 christos
2867 1.1 christos while (1)
2868 1.1 christos {
2869 1.1 christos bfd *input_bfd;
2870 1.1 christos unsigned int bfd_indx;
2871 1.1 christos asection *stub_sec;
2872 1.1 christos
2873 1.1 christos for (input_bfd = info->input_bfds, bfd_indx = 0;
2874 1.1 christos input_bfd != NULL;
2875 1.1.1.4 christos input_bfd = input_bfd->link.next, bfd_indx++)
2876 1.1 christos {
2877 1.1 christos Elf_Internal_Shdr *symtab_hdr;
2878 1.1 christos asection *section;
2879 1.1 christos Elf_Internal_Sym *local_syms;
2880 1.1 christos
2881 1.1 christos /* We'll need the symbol table in a second. */
2882 1.1 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2883 1.1 christos if (symtab_hdr->sh_info == 0)
2884 1.1 christos continue;
2885 1.1 christos
2886 1.1 christos local_syms = htab->all_local_syms[bfd_indx];
2887 1.1 christos
2888 1.1 christos /* Walk over each section attached to the input bfd. */
2889 1.1 christos for (section = input_bfd->sections;
2890 1.1 christos section != NULL;
2891 1.1 christos section = section->next)
2892 1.1 christos {
2893 1.1 christos Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2894 1.1 christos
2895 1.1 christos /* If there aren't any relocs, then there's nothing more
2896 1.1 christos to do. */
2897 1.1 christos if ((section->flags & SEC_RELOC) == 0
2898 1.1 christos || section->reloc_count == 0)
2899 1.1 christos continue;
2900 1.1 christos
2901 1.1 christos /* If this section is a link-once section that will be
2902 1.1 christos discarded, then don't create any stubs. */
2903 1.1 christos if (section->output_section == NULL
2904 1.1 christos || section->output_section->owner != output_bfd)
2905 1.1 christos continue;
2906 1.1 christos
2907 1.1 christos /* Get the relocs. */
2908 1.1 christos internal_relocs
2909 1.1 christos = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
2910 1.1 christos info->keep_memory);
2911 1.1 christos if (internal_relocs == NULL)
2912 1.1 christos goto error_ret_free_local;
2913 1.1 christos
2914 1.1 christos /* Now examine each relocation. */
2915 1.1 christos irela = internal_relocs;
2916 1.1 christos irelaend = irela + section->reloc_count;
2917 1.1 christos for (; irela < irelaend; irela++)
2918 1.1 christos {
2919 1.1 christos unsigned int r_type, r_indx;
2920 1.1 christos enum elf32_hppa_stub_type stub_type;
2921 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
2922 1.1 christos asection *sym_sec;
2923 1.1 christos bfd_vma sym_value;
2924 1.1 christos bfd_vma destination;
2925 1.1 christos struct elf32_hppa_link_hash_entry *hh;
2926 1.1 christos char *stub_name;
2927 1.1 christos const asection *id_sec;
2928 1.1 christos
2929 1.1 christos r_type = ELF32_R_TYPE (irela->r_info);
2930 1.1 christos r_indx = ELF32_R_SYM (irela->r_info);
2931 1.1 christos
2932 1.1 christos if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2933 1.1 christos {
2934 1.1 christos bfd_set_error (bfd_error_bad_value);
2935 1.1 christos error_ret_free_internal:
2936 1.1 christos if (elf_section_data (section)->relocs == NULL)
2937 1.1 christos free (internal_relocs);
2938 1.1 christos goto error_ret_free_local;
2939 1.1 christos }
2940 1.1 christos
2941 1.1 christos /* Only look for stubs on call instructions. */
2942 1.1 christos if (r_type != (unsigned int) R_PARISC_PCREL12F
2943 1.1 christos && r_type != (unsigned int) R_PARISC_PCREL17F
2944 1.1 christos && r_type != (unsigned int) R_PARISC_PCREL22F)
2945 1.1 christos continue;
2946 1.1 christos
2947 1.1 christos /* Now determine the call target, its name, value,
2948 1.1 christos section. */
2949 1.1 christos sym_sec = NULL;
2950 1.1 christos sym_value = 0;
2951 1.1 christos destination = 0;
2952 1.1 christos hh = NULL;
2953 1.1 christos if (r_indx < symtab_hdr->sh_info)
2954 1.1 christos {
2955 1.1 christos /* It's a local symbol. */
2956 1.1 christos Elf_Internal_Sym *sym;
2957 1.1 christos Elf_Internal_Shdr *hdr;
2958 1.1 christos unsigned int shndx;
2959 1.1 christos
2960 1.1 christos sym = local_syms + r_indx;
2961 1.1 christos if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2962 1.1 christos sym_value = sym->st_value;
2963 1.1 christos shndx = sym->st_shndx;
2964 1.1 christos if (shndx < elf_numsections (input_bfd))
2965 1.1 christos {
2966 1.1 christos hdr = elf_elfsections (input_bfd)[shndx];
2967 1.1 christos sym_sec = hdr->bfd_section;
2968 1.1 christos destination = (sym_value + irela->r_addend
2969 1.1 christos + sym_sec->output_offset
2970 1.1 christos + sym_sec->output_section->vma);
2971 1.1 christos }
2972 1.1 christos }
2973 1.1 christos else
2974 1.1 christos {
2975 1.1 christos /* It's an external symbol. */
2976 1.1 christos int e_indx;
2977 1.1 christos
2978 1.1 christos e_indx = r_indx - symtab_hdr->sh_info;
2979 1.1 christos hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
2980 1.1 christos
2981 1.1 christos while (hh->eh.root.type == bfd_link_hash_indirect
2982 1.1 christos || hh->eh.root.type == bfd_link_hash_warning)
2983 1.1 christos hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2984 1.1 christos
2985 1.1 christos if (hh->eh.root.type == bfd_link_hash_defined
2986 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak)
2987 1.1 christos {
2988 1.1 christos sym_sec = hh->eh.root.u.def.section;
2989 1.1 christos sym_value = hh->eh.root.u.def.value;
2990 1.1 christos if (sym_sec->output_section != NULL)
2991 1.1 christos destination = (sym_value + irela->r_addend
2992 1.1 christos + sym_sec->output_offset
2993 1.1 christos + sym_sec->output_section->vma);
2994 1.1 christos }
2995 1.1 christos else if (hh->eh.root.type == bfd_link_hash_undefweak)
2996 1.1 christos {
2997 1.1 christos if (! info->shared)
2998 1.1 christos continue;
2999 1.1 christos }
3000 1.1 christos else if (hh->eh.root.type == bfd_link_hash_undefined)
3001 1.1 christos {
3002 1.1 christos if (! (info->unresolved_syms_in_objects == RM_IGNORE
3003 1.1 christos && (ELF_ST_VISIBILITY (hh->eh.other)
3004 1.1 christos == STV_DEFAULT)
3005 1.1 christos && hh->eh.type != STT_PARISC_MILLI))
3006 1.1 christos continue;
3007 1.1 christos }
3008 1.1 christos else
3009 1.1 christos {
3010 1.1 christos bfd_set_error (bfd_error_bad_value);
3011 1.1 christos goto error_ret_free_internal;
3012 1.1 christos }
3013 1.1 christos }
3014 1.1 christos
3015 1.1 christos /* Determine what (if any) linker stub is needed. */
3016 1.1 christos stub_type = hppa_type_of_stub (section, irela, hh,
3017 1.1 christos destination, info);
3018 1.1 christos if (stub_type == hppa_stub_none)
3019 1.1 christos continue;
3020 1.1 christos
3021 1.1 christos /* Support for grouping stub sections. */
3022 1.1 christos id_sec = htab->stub_group[section->id].link_sec;
3023 1.1 christos
3024 1.1 christos /* Get the name of this stub. */
3025 1.1 christos stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
3026 1.1 christos if (!stub_name)
3027 1.1 christos goto error_ret_free_internal;
3028 1.1 christos
3029 1.1 christos hsh = hppa_stub_hash_lookup (&htab->bstab,
3030 1.1 christos stub_name,
3031 1.1 christos FALSE, FALSE);
3032 1.1 christos if (hsh != NULL)
3033 1.1 christos {
3034 1.1 christos /* The proper stub has already been created. */
3035 1.1 christos free (stub_name);
3036 1.1 christos continue;
3037 1.1 christos }
3038 1.1 christos
3039 1.1 christos hsh = hppa_add_stub (stub_name, section, htab);
3040 1.1 christos if (hsh == NULL)
3041 1.1 christos {
3042 1.1 christos free (stub_name);
3043 1.1 christos goto error_ret_free_internal;
3044 1.1 christos }
3045 1.1 christos
3046 1.1 christos hsh->target_value = sym_value;
3047 1.1 christos hsh->target_section = sym_sec;
3048 1.1 christos hsh->stub_type = stub_type;
3049 1.1 christos if (info->shared)
3050 1.1 christos {
3051 1.1 christos if (stub_type == hppa_stub_import)
3052 1.1 christos hsh->stub_type = hppa_stub_import_shared;
3053 1.1 christos else if (stub_type == hppa_stub_long_branch)
3054 1.1 christos hsh->stub_type = hppa_stub_long_branch_shared;
3055 1.1 christos }
3056 1.1 christos hsh->hh = hh;
3057 1.1 christos stub_changed = TRUE;
3058 1.1 christos }
3059 1.1 christos
3060 1.1 christos /* We're done with the internal relocs, free them. */
3061 1.1 christos if (elf_section_data (section)->relocs == NULL)
3062 1.1 christos free (internal_relocs);
3063 1.1 christos }
3064 1.1 christos }
3065 1.1 christos
3066 1.1 christos if (!stub_changed)
3067 1.1 christos break;
3068 1.1 christos
3069 1.1 christos /* OK, we've added some stubs. Find out the new size of the
3070 1.1 christos stub sections. */
3071 1.1 christos for (stub_sec = htab->stub_bfd->sections;
3072 1.1 christos stub_sec != NULL;
3073 1.1 christos stub_sec = stub_sec->next)
3074 1.1 christos stub_sec->size = 0;
3075 1.1 christos
3076 1.1 christos bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
3077 1.1 christos
3078 1.1 christos /* Ask the linker to do its stuff. */
3079 1.1 christos (*htab->layout_sections_again) ();
3080 1.1 christos stub_changed = FALSE;
3081 1.1 christos }
3082 1.1 christos
3083 1.1 christos free (htab->all_local_syms);
3084 1.1 christos return TRUE;
3085 1.1 christos
3086 1.1 christos error_ret_free_local:
3087 1.1 christos free (htab->all_local_syms);
3088 1.1 christos return FALSE;
3089 1.1 christos }
3090 1.1 christos
3091 1.1 christos /* For a final link, this function is called after we have sized the
3092 1.1 christos stubs to provide a value for __gp. */
3093 1.1 christos
3094 1.1 christos bfd_boolean
3095 1.1 christos elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
3096 1.1 christos {
3097 1.1 christos struct bfd_link_hash_entry *h;
3098 1.1 christos asection *sec = NULL;
3099 1.1 christos bfd_vma gp_val = 0;
3100 1.1 christos struct elf32_hppa_link_hash_table *htab;
3101 1.1 christos
3102 1.1 christos htab = hppa_link_hash_table (info);
3103 1.1 christos if (htab == NULL)
3104 1.1 christos return FALSE;
3105 1.1 christos
3106 1.1 christos h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
3107 1.1 christos
3108 1.1 christos if (h != NULL
3109 1.1 christos && (h->type == bfd_link_hash_defined
3110 1.1 christos || h->type == bfd_link_hash_defweak))
3111 1.1 christos {
3112 1.1 christos gp_val = h->u.def.value;
3113 1.1 christos sec = h->u.def.section;
3114 1.1 christos }
3115 1.1 christos else
3116 1.1 christos {
3117 1.1 christos asection *splt = bfd_get_section_by_name (abfd, ".plt");
3118 1.1 christos asection *sgot = bfd_get_section_by_name (abfd, ".got");
3119 1.1 christos
3120 1.1 christos /* Choose to point our LTP at, in this order, one of .plt, .got,
3121 1.1 christos or .data, if these sections exist. In the case of choosing
3122 1.1 christos .plt try to make the LTP ideal for addressing anywhere in the
3123 1.1 christos .plt or .got with a 14 bit signed offset. Typically, the end
3124 1.1 christos of the .plt is the start of the .got, so choose .plt + 0x2000
3125 1.1 christos if either the .plt or .got is larger than 0x2000. If both
3126 1.1 christos the .plt and .got are smaller than 0x2000, choose the end of
3127 1.1 christos the .plt section. */
3128 1.1 christos sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3129 1.1 christos ? NULL : splt;
3130 1.1 christos if (sec != NULL)
3131 1.1 christos {
3132 1.1 christos gp_val = sec->size;
3133 1.1 christos if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
3134 1.1 christos {
3135 1.1 christos gp_val = 0x2000;
3136 1.1 christos }
3137 1.1 christos }
3138 1.1 christos else
3139 1.1 christos {
3140 1.1 christos sec = sgot;
3141 1.1 christos if (sec != NULL)
3142 1.1 christos {
3143 1.1 christos if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3144 1.1 christos {
3145 1.1 christos /* We know we don't have a .plt. If .got is large,
3146 1.1 christos offset our LTP. */
3147 1.1 christos if (sec->size > 0x2000)
3148 1.1 christos gp_val = 0x2000;
3149 1.1 christos }
3150 1.1 christos }
3151 1.1 christos else
3152 1.1 christos {
3153 1.1 christos /* No .plt or .got. Who cares what the LTP is? */
3154 1.1 christos sec = bfd_get_section_by_name (abfd, ".data");
3155 1.1 christos }
3156 1.1 christos }
3157 1.1 christos
3158 1.1 christos if (h != NULL)
3159 1.1 christos {
3160 1.1 christos h->type = bfd_link_hash_defined;
3161 1.1 christos h->u.def.value = gp_val;
3162 1.1 christos if (sec != NULL)
3163 1.1 christos h->u.def.section = sec;
3164 1.1 christos else
3165 1.1 christos h->u.def.section = bfd_abs_section_ptr;
3166 1.1 christos }
3167 1.1 christos }
3168 1.1 christos
3169 1.1 christos if (sec != NULL && sec->output_section != NULL)
3170 1.1 christos gp_val += sec->output_section->vma + sec->output_offset;
3171 1.1 christos
3172 1.1 christos elf_gp (abfd) = gp_val;
3173 1.1 christos return TRUE;
3174 1.1 christos }
3175 1.1 christos
3176 1.1 christos /* Build all the stubs associated with the current output file. The
3177 1.1 christos stubs are kept in a hash table attached to the main linker hash
3178 1.1 christos table. We also set up the .plt entries for statically linked PIC
3179 1.1 christos functions here. This function is called via hppaelf_finish in the
3180 1.1 christos linker. */
3181 1.1 christos
3182 1.1 christos bfd_boolean
3183 1.1 christos elf32_hppa_build_stubs (struct bfd_link_info *info)
3184 1.1 christos {
3185 1.1 christos asection *stub_sec;
3186 1.1 christos struct bfd_hash_table *table;
3187 1.1 christos struct elf32_hppa_link_hash_table *htab;
3188 1.1 christos
3189 1.1 christos htab = hppa_link_hash_table (info);
3190 1.1 christos if (htab == NULL)
3191 1.1 christos return FALSE;
3192 1.1 christos
3193 1.1 christos for (stub_sec = htab->stub_bfd->sections;
3194 1.1 christos stub_sec != NULL;
3195 1.1 christos stub_sec = stub_sec->next)
3196 1.1 christos {
3197 1.1 christos bfd_size_type size;
3198 1.1 christos
3199 1.1 christos /* Allocate memory to hold the linker stubs. */
3200 1.1 christos size = stub_sec->size;
3201 1.1 christos stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
3202 1.1 christos if (stub_sec->contents == NULL && size != 0)
3203 1.1 christos return FALSE;
3204 1.1 christos stub_sec->size = 0;
3205 1.1 christos }
3206 1.1 christos
3207 1.1 christos /* Build the stubs as directed by the stub hash table. */
3208 1.1 christos table = &htab->bstab;
3209 1.1 christos bfd_hash_traverse (table, hppa_build_one_stub, info);
3210 1.1 christos
3211 1.1 christos return TRUE;
3212 1.1 christos }
3213 1.1 christos
3214 1.1 christos /* Return the base vma address which should be subtracted from the real
3215 1.1.1.2 christos address when resolving a dtpoff relocation.
3216 1.1 christos This is PT_TLS segment p_vaddr. */
3217 1.1 christos
3218 1.1 christos static bfd_vma
3219 1.1 christos dtpoff_base (struct bfd_link_info *info)
3220 1.1 christos {
3221 1.1 christos /* If tls_sec is NULL, we should have signalled an error already. */
3222 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
3223 1.1 christos return 0;
3224 1.1 christos return elf_hash_table (info)->tls_sec->vma;
3225 1.1 christos }
3226 1.1 christos
3227 1.1 christos /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3228 1.1 christos
3229 1.1 christos static bfd_vma
3230 1.1 christos tpoff (struct bfd_link_info *info, bfd_vma address)
3231 1.1 christos {
3232 1.1 christos struct elf_link_hash_table *htab = elf_hash_table (info);
3233 1.1 christos
3234 1.1 christos /* If tls_sec is NULL, we should have signalled an error already. */
3235 1.1 christos if (htab->tls_sec == NULL)
3236 1.1 christos return 0;
3237 1.1.1.2 christos /* hppa TLS ABI is variant I and static TLS block start just after
3238 1.1 christos tcbhead structure which has 2 pointer fields. */
3239 1.1.1.2 christos return (address - htab->tls_sec->vma
3240 1.1 christos + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3241 1.1 christos }
3242 1.1 christos
3243 1.1 christos /* Perform a final link. */
3244 1.1 christos
3245 1.1 christos static bfd_boolean
3246 1.1 christos elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
3247 1.1 christos {
3248 1.1 christos /* Invoke the regular ELF linker to do all the work. */
3249 1.1 christos if (!bfd_elf_final_link (abfd, info))
3250 1.1 christos return FALSE;
3251 1.1 christos
3252 1.1 christos /* If we're producing a final executable, sort the contents of the
3253 1.1 christos unwind section. */
3254 1.1 christos if (info->relocatable)
3255 1.1 christos return TRUE;
3256 1.1 christos
3257 1.1 christos return elf_hppa_sort_unwind (abfd);
3258 1.1 christos }
3259 1.1 christos
3260 1.1 christos /* Record the lowest address for the data and text segments. */
3261 1.1 christos
3262 1.1 christos static void
3263 1.1 christos hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
3264 1.1 christos {
3265 1.1 christos struct elf32_hppa_link_hash_table *htab;
3266 1.1 christos
3267 1.1 christos htab = (struct elf32_hppa_link_hash_table*) data;
3268 1.1 christos if (htab == NULL)
3269 1.1 christos return;
3270 1.1 christos
3271 1.1 christos if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3272 1.1 christos {
3273 1.1 christos bfd_vma value;
3274 1.1 christos Elf_Internal_Phdr *p;
3275 1.1 christos
3276 1.1 christos p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3277 1.1 christos BFD_ASSERT (p != NULL);
3278 1.1 christos value = p->p_vaddr;
3279 1.1 christos
3280 1.1 christos if ((section->flags & SEC_READONLY) != 0)
3281 1.1 christos {
3282 1.1 christos if (value < htab->text_segment_base)
3283 1.1 christos htab->text_segment_base = value;
3284 1.1 christos }
3285 1.1 christos else
3286 1.1 christos {
3287 1.1 christos if (value < htab->data_segment_base)
3288 1.1 christos htab->data_segment_base = value;
3289 1.1 christos }
3290 1.1 christos }
3291 1.1 christos }
3292 1.1 christos
3293 1.1 christos /* Perform a relocation as part of a final link. */
3294 1.1 christos
3295 1.1 christos static bfd_reloc_status_type
3296 1.1 christos final_link_relocate (asection *input_section,
3297 1.1 christos bfd_byte *contents,
3298 1.1 christos const Elf_Internal_Rela *rela,
3299 1.1 christos bfd_vma value,
3300 1.1 christos struct elf32_hppa_link_hash_table *htab,
3301 1.1 christos asection *sym_sec,
3302 1.1 christos struct elf32_hppa_link_hash_entry *hh,
3303 1.1 christos struct bfd_link_info *info)
3304 1.1 christos {
3305 1.1 christos int insn;
3306 1.1 christos unsigned int r_type = ELF32_R_TYPE (rela->r_info);
3307 1.1 christos unsigned int orig_r_type = r_type;
3308 1.1 christos reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3309 1.1 christos int r_format = howto->bitsize;
3310 1.1 christos enum hppa_reloc_field_selector_type_alt r_field;
3311 1.1 christos bfd *input_bfd = input_section->owner;
3312 1.1 christos bfd_vma offset = rela->r_offset;
3313 1.1 christos bfd_vma max_branch_offset = 0;
3314 1.1 christos bfd_byte *hit_data = contents + offset;
3315 1.1 christos bfd_signed_vma addend = rela->r_addend;
3316 1.1 christos bfd_vma location;
3317 1.1 christos struct elf32_hppa_stub_hash_entry *hsh = NULL;
3318 1.1.1.2 christos int val;
3319 1.1 christos
3320 1.1 christos if (r_type == R_PARISC_NONE)
3321 1.1 christos return bfd_reloc_ok;
3322 1.1 christos
3323 1.1 christos insn = bfd_get_32 (input_bfd, hit_data);
3324 1.1 christos
3325 1.1 christos /* Find out where we are and where we're going. */
3326 1.1 christos location = (offset +
3327 1.1 christos input_section->output_offset +
3328 1.1 christos input_section->output_section->vma);
3329 1.1 christos
3330 1.1 christos /* If we are not building a shared library, convert DLTIND relocs to
3331 1.1 christos DPREL relocs. */
3332 1.1 christos if (!info->shared)
3333 1.1 christos {
3334 1.1 christos switch (r_type)
3335 1.1 christos {
3336 1.1 christos case R_PARISC_DLTIND21L:
3337 1.1.1.2 christos case R_PARISC_TLS_GD21L:
3338 1.1.1.2 christos case R_PARISC_TLS_LDM21L:
3339 1.1.1.2 christos case R_PARISC_TLS_IE21L:
3340 1.1 christos r_type = R_PARISC_DPREL21L;
3341 1.1 christos break;
3342 1.1 christos
3343 1.1 christos case R_PARISC_DLTIND14R:
3344 1.1.1.2 christos case R_PARISC_TLS_GD14R:
3345 1.1.1.2 christos case R_PARISC_TLS_LDM14R:
3346 1.1.1.2 christos case R_PARISC_TLS_IE14R:
3347 1.1 christos r_type = R_PARISC_DPREL14R;
3348 1.1 christos break;
3349 1.1 christos
3350 1.1 christos case R_PARISC_DLTIND14F:
3351 1.1 christos r_type = R_PARISC_DPREL14F;
3352 1.1 christos break;
3353 1.1 christos }
3354 1.1 christos }
3355 1.1 christos
3356 1.1 christos switch (r_type)
3357 1.1 christos {
3358 1.1 christos case R_PARISC_PCREL12F:
3359 1.1 christos case R_PARISC_PCREL17F:
3360 1.1 christos case R_PARISC_PCREL22F:
3361 1.1 christos /* If this call should go via the plt, find the import stub in
3362 1.1 christos the stub hash. */
3363 1.1 christos if (sym_sec == NULL
3364 1.1 christos || sym_sec->output_section == NULL
3365 1.1 christos || (hh != NULL
3366 1.1 christos && hh->eh.plt.offset != (bfd_vma) -1
3367 1.1 christos && hh->eh.dynindx != -1
3368 1.1 christos && !hh->plabel
3369 1.1 christos && (info->shared
3370 1.1 christos || !hh->eh.def_regular
3371 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak)))
3372 1.1 christos {
3373 1.1 christos hsh = hppa_get_stub_entry (input_section, sym_sec,
3374 1.1 christos hh, rela, htab);
3375 1.1 christos if (hsh != NULL)
3376 1.1 christos {
3377 1.1 christos value = (hsh->stub_offset
3378 1.1 christos + hsh->stub_sec->output_offset
3379 1.1 christos + hsh->stub_sec->output_section->vma);
3380 1.1 christos addend = 0;
3381 1.1 christos }
3382 1.1 christos else if (sym_sec == NULL && hh != NULL
3383 1.1 christos && hh->eh.root.type == bfd_link_hash_undefweak)
3384 1.1 christos {
3385 1.1 christos /* It's OK if undefined weak. Calls to undefined weak
3386 1.1 christos symbols behave as if the "called" function
3387 1.1 christos immediately returns. We can thus call to a weak
3388 1.1 christos function without first checking whether the function
3389 1.1 christos is defined. */
3390 1.1 christos value = location;
3391 1.1 christos addend = 8;
3392 1.1 christos }
3393 1.1 christos else
3394 1.1 christos return bfd_reloc_undefined;
3395 1.1 christos }
3396 1.1 christos /* Fall thru. */
3397 1.1 christos
3398 1.1 christos case R_PARISC_PCREL21L:
3399 1.1 christos case R_PARISC_PCREL17C:
3400 1.1 christos case R_PARISC_PCREL17R:
3401 1.1 christos case R_PARISC_PCREL14R:
3402 1.1 christos case R_PARISC_PCREL14F:
3403 1.1 christos case R_PARISC_PCREL32:
3404 1.1 christos /* Make it a pc relative offset. */
3405 1.1 christos value -= location;
3406 1.1 christos addend -= 8;
3407 1.1 christos break;
3408 1.1 christos
3409 1.1 christos case R_PARISC_DPREL21L:
3410 1.1 christos case R_PARISC_DPREL14R:
3411 1.1 christos case R_PARISC_DPREL14F:
3412 1.1 christos /* Convert instructions that use the linkage table pointer (r19) to
3413 1.1 christos instructions that use the global data pointer (dp). This is the
3414 1.1 christos most efficient way of using PIC code in an incomplete executable,
3415 1.1 christos but the user must follow the standard runtime conventions for
3416 1.1 christos accessing data for this to work. */
3417 1.1.1.2 christos if (orig_r_type != r_type)
3418 1.1.1.2 christos {
3419 1.1.1.2 christos if (r_type == R_PARISC_DPREL21L)
3420 1.1.1.2 christos {
3421 1.1.1.2 christos /* GCC sometimes uses a register other than r19 for the
3422 1.1.1.2 christos operation, so we must convert any addil instruction
3423 1.1.1.2 christos that uses this relocation. */
3424 1.1.1.2 christos if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3425 1.1.1.2 christos insn = ADDIL_DP;
3426 1.1.1.2 christos else
3427 1.1.1.2 christos /* We must have a ldil instruction. It's too hard to find
3428 1.1.1.2 christos and convert the associated add instruction, so issue an
3429 1.1.1.2 christos error. */
3430 1.1.1.2 christos (*_bfd_error_handler)
3431 1.1.1.2 christos (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3432 1.1.1.2 christos input_bfd,
3433 1.1.1.2 christos input_section,
3434 1.1.1.2 christos (long) offset,
3435 1.1.1.2 christos howto->name,
3436 1.1.1.2 christos insn);
3437 1.1.1.2 christos }
3438 1.1.1.2 christos else if (r_type == R_PARISC_DPREL14F)
3439 1.1.1.2 christos {
3440 1.1.1.2 christos /* This must be a format 1 load/store. Change the base
3441 1.1.1.2 christos register to dp. */
3442 1.1.1.2 christos insn = (insn & 0xfc1ffff) | (27 << 21);
3443 1.1.1.2 christos }
3444 1.1.1.2 christos }
3445 1.1.1.2 christos
3446 1.1.1.2 christos /* For all the DP relative relocations, we need to examine the symbol's
3447 1.1.1.2 christos section. If it has no section or if it's a code section, then
3448 1.1.1.2 christos "data pointer relative" makes no sense. In that case we don't
3449 1.1.1.2 christos adjust the "value", and for 21 bit addil instructions, we change the
3450 1.1.1.2 christos source addend register from %dp to %r0. This situation commonly
3451 1.1.1.2 christos arises for undefined weak symbols and when a variable's "constness"
3452 1.1.1.2 christos is declared differently from the way the variable is defined. For
3453 1.1.1.2 christos instance: "extern int foo" with foo defined as "const int foo". */
3454 1.1 christos if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
3455 1.1 christos {
3456 1.1 christos if ((insn & ((0x3f << 26) | (0x1f << 21)))
3457 1.1 christos == (((int) OP_ADDIL << 26) | (27 << 21)))
3458 1.1 christos {
3459 1.1 christos insn &= ~ (0x1f << 21);
3460 1.1 christos }
3461 1.1 christos /* Now try to make things easy for the dynamic linker. */
3462 1.1 christos
3463 1.1 christos break;
3464 1.1 christos }
3465 1.1 christos /* Fall thru. */
3466 1.1 christos
3467 1.1 christos case R_PARISC_DLTIND21L:
3468 1.1 christos case R_PARISC_DLTIND14R:
3469 1.1 christos case R_PARISC_DLTIND14F:
3470 1.1.1.2 christos case R_PARISC_TLS_GD21L:
3471 1.1.1.2 christos case R_PARISC_TLS_LDM21L:
3472 1.1.1.2 christos case R_PARISC_TLS_IE21L:
3473 1.1 christos case R_PARISC_TLS_GD14R:
3474 1.1 christos case R_PARISC_TLS_LDM14R:
3475 1.1 christos case R_PARISC_TLS_IE14R:
3476 1.1 christos value -= elf_gp (input_section->output_section->owner);
3477 1.1 christos break;
3478 1.1 christos
3479 1.1 christos case R_PARISC_SEGREL32:
3480 1.1 christos if ((sym_sec->flags & SEC_CODE) != 0)
3481 1.1 christos value -= htab->text_segment_base;
3482 1.1 christos else
3483 1.1 christos value -= htab->data_segment_base;
3484 1.1 christos break;
3485 1.1 christos
3486 1.1 christos default:
3487 1.1 christos break;
3488 1.1 christos }
3489 1.1 christos
3490 1.1 christos switch (r_type)
3491 1.1 christos {
3492 1.1 christos case R_PARISC_DIR32:
3493 1.1 christos case R_PARISC_DIR14F:
3494 1.1 christos case R_PARISC_DIR17F:
3495 1.1 christos case R_PARISC_PCREL17C:
3496 1.1 christos case R_PARISC_PCREL14F:
3497 1.1 christos case R_PARISC_PCREL32:
3498 1.1 christos case R_PARISC_DPREL14F:
3499 1.1 christos case R_PARISC_PLABEL32:
3500 1.1 christos case R_PARISC_DLTIND14F:
3501 1.1 christos case R_PARISC_SEGBASE:
3502 1.1 christos case R_PARISC_SEGREL32:
3503 1.1 christos case R_PARISC_TLS_DTPMOD32:
3504 1.1 christos case R_PARISC_TLS_DTPOFF32:
3505 1.1 christos case R_PARISC_TLS_TPREL32:
3506 1.1 christos r_field = e_fsel;
3507 1.1 christos break;
3508 1.1 christos
3509 1.1 christos case R_PARISC_DLTIND21L:
3510 1.1 christos case R_PARISC_PCREL21L:
3511 1.1 christos case R_PARISC_PLABEL21L:
3512 1.1 christos r_field = e_lsel;
3513 1.1 christos break;
3514 1.1 christos
3515 1.1 christos case R_PARISC_DIR21L:
3516 1.1 christos case R_PARISC_DPREL21L:
3517 1.1 christos case R_PARISC_TLS_GD21L:
3518 1.1 christos case R_PARISC_TLS_LDM21L:
3519 1.1 christos case R_PARISC_TLS_LDO21L:
3520 1.1 christos case R_PARISC_TLS_IE21L:
3521 1.1 christos case R_PARISC_TLS_LE21L:
3522 1.1 christos r_field = e_lrsel;
3523 1.1 christos break;
3524 1.1 christos
3525 1.1 christos case R_PARISC_PCREL17R:
3526 1.1 christos case R_PARISC_PCREL14R:
3527 1.1 christos case R_PARISC_PLABEL14R:
3528 1.1 christos case R_PARISC_DLTIND14R:
3529 1.1 christos r_field = e_rsel;
3530 1.1 christos break;
3531 1.1 christos
3532 1.1 christos case R_PARISC_DIR17R:
3533 1.1 christos case R_PARISC_DIR14R:
3534 1.1 christos case R_PARISC_DPREL14R:
3535 1.1 christos case R_PARISC_TLS_GD14R:
3536 1.1 christos case R_PARISC_TLS_LDM14R:
3537 1.1 christos case R_PARISC_TLS_LDO14R:
3538 1.1 christos case R_PARISC_TLS_IE14R:
3539 1.1 christos case R_PARISC_TLS_LE14R:
3540 1.1 christos r_field = e_rrsel;
3541 1.1 christos break;
3542 1.1 christos
3543 1.1 christos case R_PARISC_PCREL12F:
3544 1.1 christos case R_PARISC_PCREL17F:
3545 1.1 christos case R_PARISC_PCREL22F:
3546 1.1 christos r_field = e_fsel;
3547 1.1 christos
3548 1.1 christos if (r_type == (unsigned int) R_PARISC_PCREL17F)
3549 1.1 christos {
3550 1.1 christos max_branch_offset = (1 << (17-1)) << 2;
3551 1.1 christos }
3552 1.1 christos else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3553 1.1 christos {
3554 1.1 christos max_branch_offset = (1 << (12-1)) << 2;
3555 1.1 christos }
3556 1.1 christos else
3557 1.1 christos {
3558 1.1 christos max_branch_offset = (1 << (22-1)) << 2;
3559 1.1 christos }
3560 1.1 christos
3561 1.1 christos /* sym_sec is NULL on undefined weak syms or when shared on
3562 1.1 christos undefined syms. We've already checked for a stub for the
3563 1.1 christos shared undefined case. */
3564 1.1 christos if (sym_sec == NULL)
3565 1.1 christos break;
3566 1.1 christos
3567 1.1 christos /* If the branch is out of reach, then redirect the
3568 1.1 christos call to the local stub for this function. */
3569 1.1 christos if (value + addend + max_branch_offset >= 2*max_branch_offset)
3570 1.1 christos {
3571 1.1 christos hsh = hppa_get_stub_entry (input_section, sym_sec,
3572 1.1 christos hh, rela, htab);
3573 1.1 christos if (hsh == NULL)
3574 1.1 christos return bfd_reloc_undefined;
3575 1.1 christos
3576 1.1 christos /* Munge up the value and addend so that we call the stub
3577 1.1 christos rather than the procedure directly. */
3578 1.1 christos value = (hsh->stub_offset
3579 1.1 christos + hsh->stub_sec->output_offset
3580 1.1 christos + hsh->stub_sec->output_section->vma
3581 1.1 christos - location);
3582 1.1 christos addend = -8;
3583 1.1 christos }
3584 1.1 christos break;
3585 1.1 christos
3586 1.1 christos /* Something we don't know how to handle. */
3587 1.1 christos default:
3588 1.1 christos return bfd_reloc_notsupported;
3589 1.1 christos }
3590 1.1 christos
3591 1.1 christos /* Make sure we can reach the stub. */
3592 1.1 christos if (max_branch_offset != 0
3593 1.1 christos && value + addend + max_branch_offset >= 2*max_branch_offset)
3594 1.1 christos {
3595 1.1 christos (*_bfd_error_handler)
3596 1.1 christos (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3597 1.1 christos input_bfd,
3598 1.1 christos input_section,
3599 1.1 christos (long) offset,
3600 1.1 christos hsh->bh_root.string);
3601 1.1 christos bfd_set_error (bfd_error_bad_value);
3602 1.1 christos return bfd_reloc_notsupported;
3603 1.1 christos }
3604 1.1 christos
3605 1.1 christos val = hppa_field_adjust (value, addend, r_field);
3606 1.1 christos
3607 1.1 christos switch (r_type)
3608 1.1 christos {
3609 1.1 christos case R_PARISC_PCREL12F:
3610 1.1 christos case R_PARISC_PCREL17C:
3611 1.1 christos case R_PARISC_PCREL17F:
3612 1.1 christos case R_PARISC_PCREL17R:
3613 1.1 christos case R_PARISC_PCREL22F:
3614 1.1 christos case R_PARISC_DIR17F:
3615 1.1 christos case R_PARISC_DIR17R:
3616 1.1 christos /* This is a branch. Divide the offset by four.
3617 1.1 christos Note that we need to decide whether it's a branch or
3618 1.1 christos otherwise by inspecting the reloc. Inspecting insn won't
3619 1.1 christos work as insn might be from a .word directive. */
3620 1.1 christos val >>= 2;
3621 1.1 christos break;
3622 1.1 christos
3623 1.1 christos default:
3624 1.1 christos break;
3625 1.1 christos }
3626 1.1 christos
3627 1.1 christos insn = hppa_rebuild_insn (insn, val, r_format);
3628 1.1 christos
3629 1.1 christos /* Update the instruction word. */
3630 1.1 christos bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
3631 1.1 christos return bfd_reloc_ok;
3632 1.1 christos }
3633 1.1 christos
3634 1.1 christos /* Relocate an HPPA ELF section. */
3635 1.1 christos
3636 1.1 christos static bfd_boolean
3637 1.1 christos elf32_hppa_relocate_section (bfd *output_bfd,
3638 1.1 christos struct bfd_link_info *info,
3639 1.1 christos bfd *input_bfd,
3640 1.1 christos asection *input_section,
3641 1.1 christos bfd_byte *contents,
3642 1.1 christos Elf_Internal_Rela *relocs,
3643 1.1 christos Elf_Internal_Sym *local_syms,
3644 1.1 christos asection **local_sections)
3645 1.1 christos {
3646 1.1 christos bfd_vma *local_got_offsets;
3647 1.1 christos struct elf32_hppa_link_hash_table *htab;
3648 1.1 christos Elf_Internal_Shdr *symtab_hdr;
3649 1.1 christos Elf_Internal_Rela *rela;
3650 1.1 christos Elf_Internal_Rela *relend;
3651 1.1 christos
3652 1.1 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3653 1.1 christos
3654 1.1 christos htab = hppa_link_hash_table (info);
3655 1.1 christos if (htab == NULL)
3656 1.1 christos return FALSE;
3657 1.1 christos
3658 1.1 christos local_got_offsets = elf_local_got_offsets (input_bfd);
3659 1.1 christos
3660 1.1 christos rela = relocs;
3661 1.1 christos relend = relocs + input_section->reloc_count;
3662 1.1 christos for (; rela < relend; rela++)
3663 1.1 christos {
3664 1.1 christos unsigned int r_type;
3665 1.1 christos reloc_howto_type *howto;
3666 1.1 christos unsigned int r_symndx;
3667 1.1 christos struct elf32_hppa_link_hash_entry *hh;
3668 1.1 christos Elf_Internal_Sym *sym;
3669 1.1 christos asection *sym_sec;
3670 1.1 christos bfd_vma relocation;
3671 1.1 christos bfd_reloc_status_type rstatus;
3672 1.1 christos const char *sym_name;
3673 1.1 christos bfd_boolean plabel;
3674 1.1 christos bfd_boolean warned_undef;
3675 1.1 christos
3676 1.1 christos r_type = ELF32_R_TYPE (rela->r_info);
3677 1.1 christos if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3678 1.1 christos {
3679 1.1 christos bfd_set_error (bfd_error_bad_value);
3680 1.1 christos return FALSE;
3681 1.1 christos }
3682 1.1 christos if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3683 1.1 christos || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3684 1.1 christos continue;
3685 1.1 christos
3686 1.1 christos r_symndx = ELF32_R_SYM (rela->r_info);
3687 1.1 christos hh = NULL;
3688 1.1 christos sym = NULL;
3689 1.1 christos sym_sec = NULL;
3690 1.1 christos warned_undef = FALSE;
3691 1.1 christos if (r_symndx < symtab_hdr->sh_info)
3692 1.1 christos {
3693 1.1 christos /* This is a local symbol, h defaults to NULL. */
3694 1.1 christos sym = local_syms + r_symndx;
3695 1.1 christos sym_sec = local_sections[r_symndx];
3696 1.1 christos relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
3697 1.1 christos }
3698 1.1 christos else
3699 1.1 christos {
3700 1.1 christos struct elf_link_hash_entry *eh;
3701 1.1.1.3 christos bfd_boolean unresolved_reloc, ignored;
3702 1.1 christos struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3703 1.1 christos
3704 1.1 christos RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
3705 1.1 christos r_symndx, symtab_hdr, sym_hashes,
3706 1.1 christos eh, sym_sec, relocation,
3707 1.1.1.3 christos unresolved_reloc, warned_undef,
3708 1.1.1.3 christos ignored);
3709 1.1 christos
3710 1.1 christos if (!info->relocatable
3711 1.1 christos && relocation == 0
3712 1.1 christos && eh->root.type != bfd_link_hash_defined
3713 1.1 christos && eh->root.type != bfd_link_hash_defweak
3714 1.1 christos && eh->root.type != bfd_link_hash_undefweak)
3715 1.1 christos {
3716 1.1 christos if (info->unresolved_syms_in_objects == RM_IGNORE
3717 1.1 christos && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3718 1.1 christos && eh->type == STT_PARISC_MILLI)
3719 1.1 christos {
3720 1.1 christos if (! info->callbacks->undefined_symbol
3721 1.1 christos (info, eh_name (eh), input_bfd,
3722 1.1 christos input_section, rela->r_offset, FALSE))
3723 1.1 christos return FALSE;
3724 1.1 christos warned_undef = TRUE;
3725 1.1 christos }
3726 1.1 christos }
3727 1.1 christos hh = hppa_elf_hash_entry (eh);
3728 1.1 christos }
3729 1.1 christos
3730 1.1.1.2 christos if (sym_sec != NULL && discarded_section (sym_sec))
3731 1.1 christos RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3732 1.1.1.2 christos rela, 1, relend,
3733 1.1.1.2 christos elf_hppa_howto_table + r_type, 0,
3734 1.1 christos contents);
3735 1.1 christos
3736 1.1 christos if (info->relocatable)
3737 1.1 christos continue;
3738 1.1 christos
3739 1.1 christos /* Do any required modifications to the relocation value, and
3740 1.1 christos determine what types of dynamic info we need to output, if
3741 1.1 christos any. */
3742 1.1 christos plabel = 0;
3743 1.1 christos switch (r_type)
3744 1.1 christos {
3745 1.1 christos case R_PARISC_DLTIND14F:
3746 1.1 christos case R_PARISC_DLTIND14R:
3747 1.1 christos case R_PARISC_DLTIND21L:
3748 1.1 christos {
3749 1.1 christos bfd_vma off;
3750 1.1 christos bfd_boolean do_got = 0;
3751 1.1 christos
3752 1.1 christos /* Relocation is to the entry for this symbol in the
3753 1.1 christos global offset table. */
3754 1.1 christos if (hh != NULL)
3755 1.1 christos {
3756 1.1 christos bfd_boolean dyn;
3757 1.1 christos
3758 1.1 christos off = hh->eh.got.offset;
3759 1.1 christos dyn = htab->etab.dynamic_sections_created;
3760 1.1 christos if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
3761 1.1 christos &hh->eh))
3762 1.1 christos {
3763 1.1 christos /* If we aren't going to call finish_dynamic_symbol,
3764 1.1 christos then we need to handle initialisation of the .got
3765 1.1 christos entry and create needed relocs here. Since the
3766 1.1 christos offset must always be a multiple of 4, we use the
3767 1.1 christos least significant bit to record whether we have
3768 1.1 christos initialised it already. */
3769 1.1 christos if ((off & 1) != 0)
3770 1.1 christos off &= ~1;
3771 1.1 christos else
3772 1.1 christos {
3773 1.1 christos hh->eh.got.offset |= 1;
3774 1.1 christos do_got = 1;
3775 1.1 christos }
3776 1.1 christos }
3777 1.1 christos }
3778 1.1 christos else
3779 1.1 christos {
3780 1.1 christos /* Local symbol case. */
3781 1.1 christos if (local_got_offsets == NULL)
3782 1.1 christos abort ();
3783 1.1 christos
3784 1.1 christos off = local_got_offsets[r_symndx];
3785 1.1 christos
3786 1.1 christos /* The offset must always be a multiple of 4. We use
3787 1.1 christos the least significant bit to record whether we have
3788 1.1 christos already generated the necessary reloc. */
3789 1.1 christos if ((off & 1) != 0)
3790 1.1 christos off &= ~1;
3791 1.1 christos else
3792 1.1 christos {
3793 1.1 christos local_got_offsets[r_symndx] |= 1;
3794 1.1 christos do_got = 1;
3795 1.1 christos }
3796 1.1 christos }
3797 1.1 christos
3798 1.1 christos if (do_got)
3799 1.1 christos {
3800 1.1 christos if (info->shared)
3801 1.1 christos {
3802 1.1 christos /* Output a dynamic relocation for this GOT entry.
3803 1.1 christos In this case it is relative to the base of the
3804 1.1 christos object because the symbol index is zero. */
3805 1.1 christos Elf_Internal_Rela outrel;
3806 1.1 christos bfd_byte *loc;
3807 1.1 christos asection *sec = htab->srelgot;
3808 1.1 christos
3809 1.1 christos outrel.r_offset = (off
3810 1.1 christos + htab->sgot->output_offset
3811 1.1 christos + htab->sgot->output_section->vma);
3812 1.1 christos outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3813 1.1 christos outrel.r_addend = relocation;
3814 1.1 christos loc = sec->contents;
3815 1.1 christos loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
3816 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3817 1.1 christos }
3818 1.1 christos else
3819 1.1 christos bfd_put_32 (output_bfd, relocation,
3820 1.1 christos htab->sgot->contents + off);
3821 1.1 christos }
3822 1.1 christos
3823 1.1 christos if (off >= (bfd_vma) -2)
3824 1.1 christos abort ();
3825 1.1 christos
3826 1.1 christos /* Add the base of the GOT to the relocation value. */
3827 1.1 christos relocation = (off
3828 1.1 christos + htab->sgot->output_offset
3829 1.1 christos + htab->sgot->output_section->vma);
3830 1.1 christos }
3831 1.1 christos break;
3832 1.1 christos
3833 1.1 christos case R_PARISC_SEGREL32:
3834 1.1 christos /* If this is the first SEGREL relocation, then initialize
3835 1.1 christos the segment base values. */
3836 1.1 christos if (htab->text_segment_base == (bfd_vma) -1)
3837 1.1 christos bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
3838 1.1 christos break;
3839 1.1 christos
3840 1.1 christos case R_PARISC_PLABEL14R:
3841 1.1 christos case R_PARISC_PLABEL21L:
3842 1.1 christos case R_PARISC_PLABEL32:
3843 1.1 christos if (htab->etab.dynamic_sections_created)
3844 1.1 christos {
3845 1.1 christos bfd_vma off;
3846 1.1 christos bfd_boolean do_plt = 0;
3847 1.1 christos /* If we have a global symbol with a PLT slot, then
3848 1.1 christos redirect this relocation to it. */
3849 1.1 christos if (hh != NULL)
3850 1.1 christos {
3851 1.1 christos off = hh->eh.plt.offset;
3852 1.1 christos if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared,
3853 1.1 christos &hh->eh))
3854 1.1 christos {
3855 1.1 christos /* In a non-shared link, adjust_dynamic_symbols
3856 1.1 christos isn't called for symbols forced local. We
3857 1.1 christos need to write out the plt entry here. */
3858 1.1 christos if ((off & 1) != 0)
3859 1.1 christos off &= ~1;
3860 1.1 christos else
3861 1.1 christos {
3862 1.1 christos hh->eh.plt.offset |= 1;
3863 1.1 christos do_plt = 1;
3864 1.1 christos }
3865 1.1 christos }
3866 1.1 christos }
3867 1.1 christos else
3868 1.1 christos {
3869 1.1 christos bfd_vma *local_plt_offsets;
3870 1.1 christos
3871 1.1 christos if (local_got_offsets == NULL)
3872 1.1 christos abort ();
3873 1.1 christos
3874 1.1 christos local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3875 1.1 christos off = local_plt_offsets[r_symndx];
3876 1.1 christos
3877 1.1 christos /* As for the local .got entry case, we use the last
3878 1.1 christos bit to record whether we've already initialised
3879 1.1 christos this local .plt entry. */
3880 1.1 christos if ((off & 1) != 0)
3881 1.1 christos off &= ~1;
3882 1.1 christos else
3883 1.1 christos {
3884 1.1 christos local_plt_offsets[r_symndx] |= 1;
3885 1.1 christos do_plt = 1;
3886 1.1 christos }
3887 1.1 christos }
3888 1.1 christos
3889 1.1 christos if (do_plt)
3890 1.1 christos {
3891 1.1 christos if (info->shared)
3892 1.1 christos {
3893 1.1 christos /* Output a dynamic IPLT relocation for this
3894 1.1 christos PLT entry. */
3895 1.1 christos Elf_Internal_Rela outrel;
3896 1.1 christos bfd_byte *loc;
3897 1.1 christos asection *s = htab->srelplt;
3898 1.1 christos
3899 1.1 christos outrel.r_offset = (off
3900 1.1 christos + htab->splt->output_offset
3901 1.1 christos + htab->splt->output_section->vma);
3902 1.1 christos outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3903 1.1 christos outrel.r_addend = relocation;
3904 1.1 christos loc = s->contents;
3905 1.1 christos loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
3906 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3907 1.1 christos }
3908 1.1 christos else
3909 1.1 christos {
3910 1.1 christos bfd_put_32 (output_bfd,
3911 1.1 christos relocation,
3912 1.1 christos htab->splt->contents + off);
3913 1.1 christos bfd_put_32 (output_bfd,
3914 1.1 christos elf_gp (htab->splt->output_section->owner),
3915 1.1 christos htab->splt->contents + off + 4);
3916 1.1 christos }
3917 1.1 christos }
3918 1.1 christos
3919 1.1 christos if (off >= (bfd_vma) -2)
3920 1.1 christos abort ();
3921 1.1 christos
3922 1.1 christos /* PLABELs contain function pointers. Relocation is to
3923 1.1 christos the entry for the function in the .plt. The magic +2
3924 1.1 christos offset signals to $$dyncall that the function pointer
3925 1.1 christos is in the .plt and thus has a gp pointer too.
3926 1.1 christos Exception: Undefined PLABELs should have a value of
3927 1.1 christos zero. */
3928 1.1 christos if (hh == NULL
3929 1.1 christos || (hh->eh.root.type != bfd_link_hash_undefweak
3930 1.1 christos && hh->eh.root.type != bfd_link_hash_undefined))
3931 1.1 christos {
3932 1.1 christos relocation = (off
3933 1.1 christos + htab->splt->output_offset
3934 1.1 christos + htab->splt->output_section->vma
3935 1.1 christos + 2);
3936 1.1 christos }
3937 1.1 christos plabel = 1;
3938 1.1 christos }
3939 1.1 christos /* Fall through and possibly emit a dynamic relocation. */
3940 1.1 christos
3941 1.1 christos case R_PARISC_DIR17F:
3942 1.1 christos case R_PARISC_DIR17R:
3943 1.1 christos case R_PARISC_DIR14F:
3944 1.1 christos case R_PARISC_DIR14R:
3945 1.1 christos case R_PARISC_DIR21L:
3946 1.1 christos case R_PARISC_DPREL14F:
3947 1.1 christos case R_PARISC_DPREL14R:
3948 1.1 christos case R_PARISC_DPREL21L:
3949 1.1 christos case R_PARISC_DIR32:
3950 1.1 christos if ((input_section->flags & SEC_ALLOC) == 0)
3951 1.1 christos break;
3952 1.1 christos
3953 1.1 christos /* The reloc types handled here and this conditional
3954 1.1 christos expression must match the code in ..check_relocs and
3955 1.1 christos allocate_dynrelocs. ie. We need exactly the same condition
3956 1.1 christos as in ..check_relocs, with some extra conditions (dynindx
3957 1.1 christos test in this case) to cater for relocs removed by
3958 1.1 christos allocate_dynrelocs. If you squint, the non-shared test
3959 1.1 christos here does indeed match the one in ..check_relocs, the
3960 1.1 christos difference being that here we test DEF_DYNAMIC as well as
3961 1.1 christos !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3962 1.1 christos which is why we can't use just that test here.
3963 1.1 christos Conversely, DEF_DYNAMIC can't be used in check_relocs as
3964 1.1 christos there all files have not been loaded. */
3965 1.1 christos if ((info->shared
3966 1.1 christos && (hh == NULL
3967 1.1 christos || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3968 1.1 christos || hh->eh.root.type != bfd_link_hash_undefweak)
3969 1.1 christos && (IS_ABSOLUTE_RELOC (r_type)
3970 1.1 christos || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
3971 1.1 christos || (!info->shared
3972 1.1 christos && hh != NULL
3973 1.1 christos && hh->eh.dynindx != -1
3974 1.1 christos && !hh->eh.non_got_ref
3975 1.1 christos && ((ELIMINATE_COPY_RELOCS
3976 1.1 christos && hh->eh.def_dynamic
3977 1.1 christos && !hh->eh.def_regular)
3978 1.1 christos || hh->eh.root.type == bfd_link_hash_undefweak
3979 1.1 christos || hh->eh.root.type == bfd_link_hash_undefined)))
3980 1.1 christos {
3981 1.1 christos Elf_Internal_Rela outrel;
3982 1.1 christos bfd_boolean skip;
3983 1.1 christos asection *sreloc;
3984 1.1 christos bfd_byte *loc;
3985 1.1 christos
3986 1.1 christos /* When generating a shared object, these relocations
3987 1.1 christos are copied into the output file to be resolved at run
3988 1.1 christos time. */
3989 1.1 christos
3990 1.1 christos outrel.r_addend = rela->r_addend;
3991 1.1 christos outrel.r_offset =
3992 1.1 christos _bfd_elf_section_offset (output_bfd, info, input_section,
3993 1.1 christos rela->r_offset);
3994 1.1 christos skip = (outrel.r_offset == (bfd_vma) -1
3995 1.1 christos || outrel.r_offset == (bfd_vma) -2);
3996 1.1 christos outrel.r_offset += (input_section->output_offset
3997 1.1 christos + input_section->output_section->vma);
3998 1.1.1.2 christos
3999 1.1 christos if (skip)
4000 1.1 christos {
4001 1.1 christos memset (&outrel, 0, sizeof (outrel));
4002 1.1 christos }
4003 1.1 christos else if (hh != NULL
4004 1.1 christos && hh->eh.dynindx != -1
4005 1.1 christos && (plabel
4006 1.1 christos || !IS_ABSOLUTE_RELOC (r_type)
4007 1.1 christos || !info->shared
4008 1.1 christos || !info->symbolic
4009 1.1 christos || !hh->eh.def_regular))
4010 1.1 christos {
4011 1.1 christos outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
4012 1.1 christos }
4013 1.1 christos else /* It's a local symbol, or one marked to become local. */
4014 1.1 christos {
4015 1.1 christos int indx = 0;
4016 1.1 christos
4017 1.1 christos /* Add the absolute offset of the symbol. */
4018 1.1 christos outrel.r_addend += relocation;
4019 1.1 christos
4020 1.1 christos /* Global plabels need to be processed by the
4021 1.1 christos dynamic linker so that functions have at most one
4022 1.1 christos fptr. For this reason, we need to differentiate
4023 1.1 christos between global and local plabels, which we do by
4024 1.1 christos providing the function symbol for a global plabel
4025 1.1 christos reloc, and no symbol for local plabels. */
4026 1.1 christos if (! plabel
4027 1.1 christos && sym_sec != NULL
4028 1.1 christos && sym_sec->output_section != NULL
4029 1.1 christos && ! bfd_is_abs_section (sym_sec))
4030 1.1 christos {
4031 1.1 christos asection *osec;
4032 1.1 christos
4033 1.1 christos osec = sym_sec->output_section;
4034 1.1 christos indx = elf_section_data (osec)->dynindx;
4035 1.1 christos if (indx == 0)
4036 1.1 christos {
4037 1.1 christos osec = htab->etab.text_index_section;
4038 1.1 christos indx = elf_section_data (osec)->dynindx;
4039 1.1 christos }
4040 1.1 christos BFD_ASSERT (indx != 0);
4041 1.1 christos
4042 1.1 christos /* We are turning this relocation into one
4043 1.1 christos against a section symbol, so subtract out the
4044 1.1 christos output section's address but not the offset
4045 1.1 christos of the input section in the output section. */
4046 1.1 christos outrel.r_addend -= osec->vma;
4047 1.1 christos }
4048 1.1 christos
4049 1.1 christos outrel.r_info = ELF32_R_INFO (indx, r_type);
4050 1.1 christos }
4051 1.1 christos sreloc = elf_section_data (input_section)->sreloc;
4052 1.1 christos if (sreloc == NULL)
4053 1.1 christos abort ();
4054 1.1 christos
4055 1.1 christos loc = sreloc->contents;
4056 1.1 christos loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
4057 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4058 1.1 christos }
4059 1.1 christos break;
4060 1.1.1.2 christos
4061 1.1 christos case R_PARISC_TLS_LDM21L:
4062 1.1 christos case R_PARISC_TLS_LDM14R:
4063 1.1 christos {
4064 1.1 christos bfd_vma off;
4065 1.1.1.2 christos
4066 1.1 christos off = htab->tls_ldm_got.offset;
4067 1.1 christos if (off & 1)
4068 1.1 christos off &= ~1;
4069 1.1 christos else
4070 1.1 christos {
4071 1.1 christos Elf_Internal_Rela outrel;
4072 1.1 christos bfd_byte *loc;
4073 1.1 christos
4074 1.1.1.2 christos outrel.r_offset = (off
4075 1.1 christos + htab->sgot->output_section->vma
4076 1.1 christos + htab->sgot->output_offset);
4077 1.1 christos outrel.r_addend = 0;
4078 1.1 christos outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
4079 1.1.1.2 christos loc = htab->srelgot->contents;
4080 1.1 christos loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4081 1.1 christos
4082 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4083 1.1 christos htab->tls_ldm_got.offset |= 1;
4084 1.1 christos }
4085 1.1 christos
4086 1.1 christos /* Add the base of the GOT to the relocation value. */
4087 1.1 christos relocation = (off
4088 1.1 christos + htab->sgot->output_offset
4089 1.1 christos + htab->sgot->output_section->vma);
4090 1.1 christos
4091 1.1 christos break;
4092 1.1 christos }
4093 1.1 christos
4094 1.1 christos case R_PARISC_TLS_LDO21L:
4095 1.1 christos case R_PARISC_TLS_LDO14R:
4096 1.1 christos relocation -= dtpoff_base (info);
4097 1.1 christos break;
4098 1.1 christos
4099 1.1 christos case R_PARISC_TLS_GD21L:
4100 1.1 christos case R_PARISC_TLS_GD14R:
4101 1.1 christos case R_PARISC_TLS_IE21L:
4102 1.1 christos case R_PARISC_TLS_IE14R:
4103 1.1 christos {
4104 1.1 christos bfd_vma off;
4105 1.1 christos int indx;
4106 1.1 christos char tls_type;
4107 1.1 christos
4108 1.1 christos indx = 0;
4109 1.1 christos if (hh != NULL)
4110 1.1 christos {
4111 1.1 christos bfd_boolean dyn;
4112 1.1 christos dyn = htab->etab.dynamic_sections_created;
4113 1.1 christos
4114 1.1 christos if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh)
4115 1.1 christos && (!info->shared
4116 1.1 christos || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4117 1.1 christos {
4118 1.1 christos indx = hh->eh.dynindx;
4119 1.1 christos }
4120 1.1 christos off = hh->eh.got.offset;
4121 1.1 christos tls_type = hh->tls_type;
4122 1.1 christos }
4123 1.1 christos else
4124 1.1 christos {
4125 1.1 christos off = local_got_offsets[r_symndx];
4126 1.1 christos tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4127 1.1 christos }
4128 1.1 christos
4129 1.1 christos if (tls_type == GOT_UNKNOWN)
4130 1.1 christos abort ();
4131 1.1 christos
4132 1.1 christos if ((off & 1) != 0)
4133 1.1 christos off &= ~1;
4134 1.1 christos else
4135 1.1 christos {
4136 1.1 christos bfd_boolean need_relocs = FALSE;
4137 1.1 christos Elf_Internal_Rela outrel;
4138 1.1 christos bfd_byte *loc = NULL;
4139 1.1 christos int cur_off = off;
4140 1.1 christos
4141 1.1 christos /* The GOT entries have not been initialized yet. Do it
4142 1.1 christos now, and emit any relocations. If both an IE GOT and a
4143 1.1 christos GD GOT are necessary, we emit the GD first. */
4144 1.1 christos
4145 1.1 christos if ((info->shared || indx != 0)
4146 1.1 christos && (hh == NULL
4147 1.1 christos || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4148 1.1 christos || hh->eh.root.type != bfd_link_hash_undefweak))
4149 1.1 christos {
4150 1.1 christos need_relocs = TRUE;
4151 1.1.1.2 christos loc = htab->srelgot->contents;
4152 1.1 christos /* FIXME (CAO): Should this be reloc_count++ ? */
4153 1.1 christos loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
4154 1.1 christos }
4155 1.1 christos
4156 1.1 christos if (tls_type & GOT_TLS_GD)
4157 1.1 christos {
4158 1.1 christos if (need_relocs)
4159 1.1 christos {
4160 1.1 christos outrel.r_offset = (cur_off
4161 1.1 christos + htab->sgot->output_section->vma
4162 1.1 christos + htab->sgot->output_offset);
4163 1.1 christos outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4164 1.1 christos outrel.r_addend = 0;
4165 1.1 christos bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
4166 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4167 1.1 christos htab->srelgot->reloc_count++;
4168 1.1 christos loc += sizeof (Elf32_External_Rela);
4169 1.1 christos
4170 1.1 christos if (indx == 0)
4171 1.1 christos bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4172 1.1 christos htab->sgot->contents + cur_off + 4);
4173 1.1 christos else
4174 1.1 christos {
4175 1.1 christos bfd_put_32 (output_bfd, 0,
4176 1.1 christos htab->sgot->contents + cur_off + 4);
4177 1.1 christos outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4178 1.1 christos outrel.r_offset += 4;
4179 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4180 1.1 christos htab->srelgot->reloc_count++;
4181 1.1 christos loc += sizeof (Elf32_External_Rela);
4182 1.1 christos }
4183 1.1 christos }
4184 1.1 christos else
4185 1.1 christos {
4186 1.1 christos /* If we are not emitting relocations for a
4187 1.1 christos general dynamic reference, then we must be in a
4188 1.1 christos static link or an executable link with the
4189 1.1 christos symbol binding locally. Mark it as belonging
4190 1.1 christos to module 1, the executable. */
4191 1.1 christos bfd_put_32 (output_bfd, 1,
4192 1.1 christos htab->sgot->contents + cur_off);
4193 1.1 christos bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4194 1.1 christos htab->sgot->contents + cur_off + 4);
4195 1.1 christos }
4196 1.1 christos
4197 1.1 christos
4198 1.1 christos cur_off += 8;
4199 1.1 christos }
4200 1.1 christos
4201 1.1 christos if (tls_type & GOT_TLS_IE)
4202 1.1 christos {
4203 1.1 christos if (need_relocs)
4204 1.1 christos {
4205 1.1 christos outrel.r_offset = (cur_off
4206 1.1 christos + htab->sgot->output_section->vma
4207 1.1 christos + htab->sgot->output_offset);
4208 1.1 christos outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4209 1.1 christos
4210 1.1 christos if (indx == 0)
4211 1.1 christos outrel.r_addend = relocation - dtpoff_base (info);
4212 1.1 christos else
4213 1.1 christos outrel.r_addend = 0;
4214 1.1 christos
4215 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4216 1.1 christos htab->srelgot->reloc_count++;
4217 1.1 christos loc += sizeof (Elf32_External_Rela);
4218 1.1 christos }
4219 1.1 christos else
4220 1.1 christos bfd_put_32 (output_bfd, tpoff (info, relocation),
4221 1.1 christos htab->sgot->contents + cur_off);
4222 1.1 christos
4223 1.1 christos cur_off += 4;
4224 1.1 christos }
4225 1.1 christos
4226 1.1 christos if (hh != NULL)
4227 1.1 christos hh->eh.got.offset |= 1;
4228 1.1 christos else
4229 1.1 christos local_got_offsets[r_symndx] |= 1;
4230 1.1 christos }
4231 1.1 christos
4232 1.1 christos if ((tls_type & GOT_TLS_GD)
4233 1.1 christos && r_type != R_PARISC_TLS_GD21L
4234 1.1 christos && r_type != R_PARISC_TLS_GD14R)
4235 1.1 christos off += 2 * GOT_ENTRY_SIZE;
4236 1.1 christos
4237 1.1 christos /* Add the base of the GOT to the relocation value. */
4238 1.1 christos relocation = (off
4239 1.1 christos + htab->sgot->output_offset
4240 1.1 christos + htab->sgot->output_section->vma);
4241 1.1 christos
4242 1.1 christos break;
4243 1.1 christos }
4244 1.1 christos
4245 1.1 christos case R_PARISC_TLS_LE21L:
4246 1.1 christos case R_PARISC_TLS_LE14R:
4247 1.1 christos {
4248 1.1 christos relocation = tpoff (info, relocation);
4249 1.1 christos break;
4250 1.1 christos }
4251 1.1 christos break;
4252 1.1 christos
4253 1.1 christos default:
4254 1.1 christos break;
4255 1.1 christos }
4256 1.1 christos
4257 1.1 christos rstatus = final_link_relocate (input_section, contents, rela, relocation,
4258 1.1 christos htab, sym_sec, hh, info);
4259 1.1 christos
4260 1.1 christos if (rstatus == bfd_reloc_ok)
4261 1.1 christos continue;
4262 1.1 christos
4263 1.1 christos if (hh != NULL)
4264 1.1 christos sym_name = hh_name (hh);
4265 1.1 christos else
4266 1.1 christos {
4267 1.1 christos sym_name = bfd_elf_string_from_elf_section (input_bfd,
4268 1.1 christos symtab_hdr->sh_link,
4269 1.1 christos sym->st_name);
4270 1.1 christos if (sym_name == NULL)
4271 1.1 christos return FALSE;
4272 1.1 christos if (*sym_name == '\0')
4273 1.1 christos sym_name = bfd_section_name (input_bfd, sym_sec);
4274 1.1 christos }
4275 1.1 christos
4276 1.1 christos howto = elf_hppa_howto_table + r_type;
4277 1.1 christos
4278 1.1 christos if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
4279 1.1 christos {
4280 1.1 christos if (rstatus == bfd_reloc_notsupported || !warned_undef)
4281 1.1 christos {
4282 1.1 christos (*_bfd_error_handler)
4283 1.1 christos (_("%B(%A+0x%lx): cannot handle %s for %s"),
4284 1.1 christos input_bfd,
4285 1.1 christos input_section,
4286 1.1 christos (long) rela->r_offset,
4287 1.1 christos howto->name,
4288 1.1 christos sym_name);
4289 1.1 christos bfd_set_error (bfd_error_bad_value);
4290 1.1 christos return FALSE;
4291 1.1 christos }
4292 1.1 christos }
4293 1.1 christos else
4294 1.1 christos {
4295 1.1 christos if (!((*info->callbacks->reloc_overflow)
4296 1.1 christos (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4297 1.1 christos (bfd_vma) 0, input_bfd, input_section, rela->r_offset)))
4298 1.1 christos return FALSE;
4299 1.1 christos }
4300 1.1 christos }
4301 1.1 christos
4302 1.1 christos return TRUE;
4303 1.1 christos }
4304 1.1 christos
4305 1.1 christos /* Finish up dynamic symbol handling. We set the contents of various
4306 1.1 christos dynamic sections here. */
4307 1.1 christos
4308 1.1 christos static bfd_boolean
4309 1.1 christos elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4310 1.1 christos struct bfd_link_info *info,
4311 1.1 christos struct elf_link_hash_entry *eh,
4312 1.1 christos Elf_Internal_Sym *sym)
4313 1.1 christos {
4314 1.1 christos struct elf32_hppa_link_hash_table *htab;
4315 1.1 christos Elf_Internal_Rela rela;
4316 1.1 christos bfd_byte *loc;
4317 1.1 christos
4318 1.1 christos htab = hppa_link_hash_table (info);
4319 1.1 christos if (htab == NULL)
4320 1.1 christos return FALSE;
4321 1.1 christos
4322 1.1 christos if (eh->plt.offset != (bfd_vma) -1)
4323 1.1 christos {
4324 1.1 christos bfd_vma value;
4325 1.1 christos
4326 1.1 christos if (eh->plt.offset & 1)
4327 1.1 christos abort ();
4328 1.1 christos
4329 1.1 christos /* This symbol has an entry in the procedure linkage table. Set
4330 1.1 christos it up.
4331 1.1 christos
4332 1.1 christos The format of a plt entry is
4333 1.1 christos <funcaddr>
4334 1.1 christos <__gp>
4335 1.1 christos */
4336 1.1 christos value = 0;
4337 1.1 christos if (eh->root.type == bfd_link_hash_defined
4338 1.1 christos || eh->root.type == bfd_link_hash_defweak)
4339 1.1 christos {
4340 1.1 christos value = eh->root.u.def.value;
4341 1.1 christos if (eh->root.u.def.section->output_section != NULL)
4342 1.1 christos value += (eh->root.u.def.section->output_offset
4343 1.1 christos + eh->root.u.def.section->output_section->vma);
4344 1.1 christos }
4345 1.1 christos
4346 1.1 christos /* Create a dynamic IPLT relocation for this entry. */
4347 1.1 christos rela.r_offset = (eh->plt.offset
4348 1.1 christos + htab->splt->output_offset
4349 1.1 christos + htab->splt->output_section->vma);
4350 1.1 christos if (eh->dynindx != -1)
4351 1.1 christos {
4352 1.1 christos rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4353 1.1 christos rela.r_addend = 0;
4354 1.1 christos }
4355 1.1 christos else
4356 1.1 christos {
4357 1.1 christos /* This symbol has been marked to become local, and is
4358 1.1 christos used by a plabel so must be kept in the .plt. */
4359 1.1 christos rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4360 1.1 christos rela.r_addend = value;
4361 1.1 christos }
4362 1.1 christos
4363 1.1 christos loc = htab->srelplt->contents;
4364 1.1 christos loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4365 1.1 christos bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc);
4366 1.1 christos
4367 1.1 christos if (!eh->def_regular)
4368 1.1 christos {
4369 1.1 christos /* Mark the symbol as undefined, rather than as defined in
4370 1.1 christos the .plt section. Leave the value alone. */
4371 1.1 christos sym->st_shndx = SHN_UNDEF;
4372 1.1 christos }
4373 1.1 christos }
4374 1.1 christos
4375 1.1 christos if (eh->got.offset != (bfd_vma) -1
4376 1.1 christos && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4377 1.1 christos && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
4378 1.1 christos {
4379 1.1 christos /* This symbol has an entry in the global offset table. Set it
4380 1.1 christos up. */
4381 1.1 christos
4382 1.1 christos rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
4383 1.1 christos + htab->sgot->output_offset
4384 1.1 christos + htab->sgot->output_section->vma);
4385 1.1 christos
4386 1.1 christos /* If this is a -Bsymbolic link and the symbol is defined
4387 1.1 christos locally or was forced to be local because of a version file,
4388 1.1 christos we just want to emit a RELATIVE reloc. The entry in the
4389 1.1 christos global offset table will already have been initialized in the
4390 1.1 christos relocate_section function. */
4391 1.1 christos if (info->shared
4392 1.1 christos && (info->symbolic || eh->dynindx == -1)
4393 1.1 christos && eh->def_regular)
4394 1.1 christos {
4395 1.1 christos rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4396 1.1 christos rela.r_addend = (eh->root.u.def.value
4397 1.1 christos + eh->root.u.def.section->output_offset
4398 1.1 christos + eh->root.u.def.section->output_section->vma);
4399 1.1 christos }
4400 1.1 christos else
4401 1.1 christos {
4402 1.1 christos if ((eh->got.offset & 1) != 0)
4403 1.1 christos abort ();
4404 1.1 christos
4405 1.1 christos bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1));
4406 1.1 christos rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4407 1.1 christos rela.r_addend = 0;
4408 1.1 christos }
4409 1.1 christos
4410 1.1 christos loc = htab->srelgot->contents;
4411 1.1 christos loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4412 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4413 1.1 christos }
4414 1.1 christos
4415 1.1 christos if (eh->needs_copy)
4416 1.1 christos {
4417 1.1 christos asection *sec;
4418 1.1 christos
4419 1.1 christos /* This symbol needs a copy reloc. Set it up. */
4420 1.1 christos
4421 1.1 christos if (! (eh->dynindx != -1
4422 1.1 christos && (eh->root.type == bfd_link_hash_defined
4423 1.1 christos || eh->root.type == bfd_link_hash_defweak)))
4424 1.1 christos abort ();
4425 1.1 christos
4426 1.1 christos sec = htab->srelbss;
4427 1.1 christos
4428 1.1 christos rela.r_offset = (eh->root.u.def.value
4429 1.1 christos + eh->root.u.def.section->output_offset
4430 1.1 christos + eh->root.u.def.section->output_section->vma);
4431 1.1 christos rela.r_addend = 0;
4432 1.1 christos rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4433 1.1 christos loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4434 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4435 1.1 christos }
4436 1.1 christos
4437 1.1 christos /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4438 1.1.1.2 christos if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
4439 1.1 christos {
4440 1.1 christos sym->st_shndx = SHN_ABS;
4441 1.1 christos }
4442 1.1 christos
4443 1.1 christos return TRUE;
4444 1.1 christos }
4445 1.1 christos
4446 1.1 christos /* Used to decide how to sort relocs in an optimal manner for the
4447 1.1 christos dynamic linker, before writing them out. */
4448 1.1 christos
4449 1.1 christos static enum elf_reloc_type_class
4450 1.1.1.3 christos elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4451 1.1.1.3 christos const asection *rel_sec ATTRIBUTE_UNUSED,
4452 1.1.1.3 christos const Elf_Internal_Rela *rela)
4453 1.1 christos {
4454 1.1 christos /* Handle TLS relocs first; we don't want them to be marked
4455 1.1 christos relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
4456 1.1 christos check below. */
4457 1.1 christos switch ((int) ELF32_R_TYPE (rela->r_info))
4458 1.1 christos {
4459 1.1 christos case R_PARISC_TLS_DTPMOD32:
4460 1.1 christos case R_PARISC_TLS_DTPOFF32:
4461 1.1 christos case R_PARISC_TLS_TPREL32:
4462 1.1 christos return reloc_class_normal;
4463 1.1 christos }
4464 1.1 christos
4465 1.1 christos if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
4466 1.1 christos return reloc_class_relative;
4467 1.1 christos
4468 1.1 christos switch ((int) ELF32_R_TYPE (rela->r_info))
4469 1.1 christos {
4470 1.1 christos case R_PARISC_IPLT:
4471 1.1 christos return reloc_class_plt;
4472 1.1 christos case R_PARISC_COPY:
4473 1.1 christos return reloc_class_copy;
4474 1.1 christos default:
4475 1.1 christos return reloc_class_normal;
4476 1.1 christos }
4477 1.1 christos }
4478 1.1 christos
4479 1.1 christos /* Finish up the dynamic sections. */
4480 1.1 christos
4481 1.1 christos static bfd_boolean
4482 1.1 christos elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4483 1.1 christos struct bfd_link_info *info)
4484 1.1 christos {
4485 1.1 christos bfd *dynobj;
4486 1.1 christos struct elf32_hppa_link_hash_table *htab;
4487 1.1 christos asection *sdyn;
4488 1.1.1.2 christos asection * sgot;
4489 1.1 christos
4490 1.1 christos htab = hppa_link_hash_table (info);
4491 1.1 christos if (htab == NULL)
4492 1.1 christos return FALSE;
4493 1.1 christos
4494 1.1 christos dynobj = htab->etab.dynobj;
4495 1.1 christos
4496 1.1.1.2 christos sgot = htab->sgot;
4497 1.1.1.2 christos /* A broken linker script might have discarded the dynamic sections.
4498 1.1.1.2 christos Catch this here so that we do not seg-fault later on. */
4499 1.1.1.2 christos if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4500 1.1.1.2 christos return FALSE;
4501 1.1.1.2 christos
4502 1.1.1.2 christos sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4503 1.1 christos
4504 1.1 christos if (htab->etab.dynamic_sections_created)
4505 1.1 christos {
4506 1.1 christos Elf32_External_Dyn *dyncon, *dynconend;
4507 1.1 christos
4508 1.1 christos if (sdyn == NULL)
4509 1.1 christos abort ();
4510 1.1 christos
4511 1.1 christos dyncon = (Elf32_External_Dyn *) sdyn->contents;
4512 1.1 christos dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4513 1.1 christos for (; dyncon < dynconend; dyncon++)
4514 1.1 christos {
4515 1.1 christos Elf_Internal_Dyn dyn;
4516 1.1 christos asection *s;
4517 1.1 christos
4518 1.1 christos bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4519 1.1 christos
4520 1.1 christos switch (dyn.d_tag)
4521 1.1 christos {
4522 1.1 christos default:
4523 1.1 christos continue;
4524 1.1 christos
4525 1.1 christos case DT_PLTGOT:
4526 1.1 christos /* Use PLTGOT to set the GOT register. */
4527 1.1 christos dyn.d_un.d_ptr = elf_gp (output_bfd);
4528 1.1 christos break;
4529 1.1 christos
4530 1.1 christos case DT_JMPREL:
4531 1.1 christos s = htab->srelplt;
4532 1.1 christos dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4533 1.1 christos break;
4534 1.1 christos
4535 1.1 christos case DT_PLTRELSZ:
4536 1.1 christos s = htab->srelplt;
4537 1.1 christos dyn.d_un.d_val = s->size;
4538 1.1 christos break;
4539 1.1 christos
4540 1.1 christos case DT_RELASZ:
4541 1.1 christos /* Don't count procedure linkage table relocs in the
4542 1.1 christos overall reloc count. */
4543 1.1 christos s = htab->srelplt;
4544 1.1 christos if (s == NULL)
4545 1.1 christos continue;
4546 1.1 christos dyn.d_un.d_val -= s->size;
4547 1.1 christos break;
4548 1.1 christos
4549 1.1 christos case DT_RELA:
4550 1.1 christos /* We may not be using the standard ELF linker script.
4551 1.1 christos If .rela.plt is the first .rela section, we adjust
4552 1.1 christos DT_RELA to not include it. */
4553 1.1 christos s = htab->srelplt;
4554 1.1 christos if (s == NULL)
4555 1.1 christos continue;
4556 1.1 christos if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
4557 1.1 christos continue;
4558 1.1 christos dyn.d_un.d_ptr += s->size;
4559 1.1 christos break;
4560 1.1 christos }
4561 1.1 christos
4562 1.1 christos bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4563 1.1 christos }
4564 1.1 christos }
4565 1.1 christos
4566 1.1.1.2 christos if (sgot != NULL && sgot->size != 0)
4567 1.1 christos {
4568 1.1 christos /* Fill in the first entry in the global offset table.
4569 1.1 christos We use it to point to our dynamic section, if we have one. */
4570 1.1 christos bfd_put_32 (output_bfd,
4571 1.1 christos sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
4572 1.1.1.2 christos sgot->contents);
4573 1.1 christos
4574 1.1 christos /* The second entry is reserved for use by the dynamic linker. */
4575 1.1.1.2 christos memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
4576 1.1 christos
4577 1.1 christos /* Set .got entry size. */
4578 1.1.1.2 christos elf_section_data (sgot->output_section)
4579 1.1 christos ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
4580 1.1 christos }
4581 1.1 christos
4582 1.1 christos if (htab->splt != NULL && htab->splt->size != 0)
4583 1.1 christos {
4584 1.1 christos /* Set plt entry size. */
4585 1.1 christos elf_section_data (htab->splt->output_section)
4586 1.1 christos ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
4587 1.1 christos
4588 1.1 christos if (htab->need_plt_stub)
4589 1.1 christos {
4590 1.1 christos /* Set up the .plt stub. */
4591 1.1 christos memcpy (htab->splt->contents
4592 1.1 christos + htab->splt->size - sizeof (plt_stub),
4593 1.1 christos plt_stub, sizeof (plt_stub));
4594 1.1 christos
4595 1.1 christos if ((htab->splt->output_offset
4596 1.1 christos + htab->splt->output_section->vma
4597 1.1 christos + htab->splt->size)
4598 1.1.1.2 christos != (sgot->output_offset
4599 1.1.1.2 christos + sgot->output_section->vma))
4600 1.1 christos {
4601 1.1 christos (*_bfd_error_handler)
4602 1.1 christos (_(".got section not immediately after .plt section"));
4603 1.1 christos return FALSE;
4604 1.1 christos }
4605 1.1 christos }
4606 1.1 christos }
4607 1.1 christos
4608 1.1 christos return TRUE;
4609 1.1 christos }
4610 1.1 christos
4611 1.1 christos /* Called when writing out an object file to decide the type of a
4612 1.1 christos symbol. */
4613 1.1 christos static int
4614 1.1 christos elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
4615 1.1 christos {
4616 1.1 christos if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4617 1.1 christos return STT_PARISC_MILLI;
4618 1.1 christos else
4619 1.1 christos return type;
4620 1.1 christos }
4621 1.1 christos
4622 1.1 christos /* Misc BFD support code. */
4623 1.1 christos #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4624 1.1 christos #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4625 1.1 christos #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4626 1.1 christos #define elf_info_to_howto elf_hppa_info_to_howto
4627 1.1 christos #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4628 1.1 christos
4629 1.1 christos /* Stuff for the BFD linker. */
4630 1.1 christos #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4631 1.1 christos #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4632 1.1 christos #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4633 1.1 christos #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4634 1.1 christos #define elf_backend_check_relocs elf32_hppa_check_relocs
4635 1.1 christos #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4636 1.1 christos #define elf_backend_fake_sections elf_hppa_fake_sections
4637 1.1 christos #define elf_backend_relocate_section elf32_hppa_relocate_section
4638 1.1 christos #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4639 1.1 christos #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4640 1.1 christos #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4641 1.1 christos #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4642 1.1 christos #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4643 1.1 christos #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4644 1.1 christos #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
4645 1.1 christos #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4646 1.1 christos #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4647 1.1 christos #define elf_backend_object_p elf32_hppa_object_p
4648 1.1 christos #define elf_backend_final_write_processing elf_hppa_final_write_processing
4649 1.1 christos #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4650 1.1 christos #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4651 1.1 christos #define elf_backend_action_discarded elf_hppa_action_discarded
4652 1.1 christos
4653 1.1 christos #define elf_backend_can_gc_sections 1
4654 1.1 christos #define elf_backend_can_refcount 1
4655 1.1 christos #define elf_backend_plt_alignment 2
4656 1.1 christos #define elf_backend_want_got_plt 0
4657 1.1 christos #define elf_backend_plt_readonly 0
4658 1.1 christos #define elf_backend_want_plt_sym 0
4659 1.1 christos #define elf_backend_got_header_size 8
4660 1.1 christos #define elf_backend_rela_normal 1
4661 1.1 christos
4662 1.1.1.4 christos #define TARGET_BIG_SYM hppa_elf32_vec
4663 1.1 christos #define TARGET_BIG_NAME "elf32-hppa"
4664 1.1 christos #define ELF_ARCH bfd_arch_hppa
4665 1.1 christos #define ELF_TARGET_ID HPPA32_ELF_DATA
4666 1.1 christos #define ELF_MACHINE_CODE EM_PARISC
4667 1.1 christos #define ELF_MAXPAGESIZE 0x1000
4668 1.1 christos #define ELF_OSABI ELFOSABI_HPUX
4669 1.1 christos #define elf32_bed elf32_hppa_hpux_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 1.1.1.4 christos #define TARGET_BIG_SYM hppa_elf32_linux_vec
4675 1.1 christos #undef TARGET_BIG_NAME
4676 1.1 christos #define TARGET_BIG_NAME "elf32-hppa-linux"
4677 1.1 christos #undef ELF_OSABI
4678 1.1.1.2 christos #define ELF_OSABI ELFOSABI_GNU
4679 1.1 christos #undef elf32_bed
4680 1.1 christos #define elf32_bed elf32_hppa_linux_bed
4681 1.1 christos
4682 1.1 christos #include "elf32-target.h"
4683 1.1 christos
4684 1.1 christos #undef TARGET_BIG_SYM
4685 1.1.1.4 christos #define TARGET_BIG_SYM hppa_elf32_nbsd_vec
4686 1.1 christos #undef TARGET_BIG_NAME
4687 1.1 christos #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4688 1.1 christos #undef ELF_OSABI
4689 1.1 christos #define ELF_OSABI ELFOSABI_NETBSD
4690 1.1 christos #undef elf32_bed
4691 1.1 christos #define elf32_bed elf32_hppa_netbsd_bed
4692 1.1 christos
4693 1.1 christos #include "elf32-target.h"
4694