elf32-hppa.c revision 1.1.1.5 1 1.1 christos /* BFD back-end for HP PA-RISC ELF files.
2 1.1.1.5 christos Copyright (C) 1990-2016 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 1.1.1.5 christos unsigned int top_index;
274 1.1 christos asection **input_list;
275 1.1 christos Elf_Internal_Sym **all_local_syms;
276 1.1 christos
277 1.1 christos /* 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 1.1.1.5 christos /* Initialize the linker stubs BFD so that we can use it for linker
459 1.1.1.5 christos created dynamic sections. */
460 1.1.1.5 christos
461 1.1.1.5 christos void
462 1.1.1.5 christos elf32_hppa_init_stub_bfd (bfd *abfd, struct bfd_link_info *info)
463 1.1.1.5 christos {
464 1.1.1.5 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
465 1.1.1.5 christos
466 1.1.1.5 christos elf_elfheader (abfd)->e_ident[EI_CLASS] = ELFCLASS32;
467 1.1.1.5 christos htab->etab.dynobj = abfd;
468 1.1.1.5 christos }
469 1.1.1.5 christos
470 1.1 christos /* Build a name for an entry in the stub hash table. */
471 1.1 christos
472 1.1 christos static char *
473 1.1 christos hppa_stub_name (const asection *input_section,
474 1.1 christos const asection *sym_sec,
475 1.1 christos const struct elf32_hppa_link_hash_entry *hh,
476 1.1 christos const Elf_Internal_Rela *rela)
477 1.1 christos {
478 1.1 christos char *stub_name;
479 1.1 christos bfd_size_type len;
480 1.1 christos
481 1.1 christos if (hh)
482 1.1 christos {
483 1.1 christos len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
484 1.1 christos stub_name = bfd_malloc (len);
485 1.1 christos if (stub_name != NULL)
486 1.1 christos sprintf (stub_name, "%08x_%s+%x",
487 1.1 christos input_section->id & 0xffffffff,
488 1.1 christos hh_name (hh),
489 1.1 christos (int) rela->r_addend & 0xffffffff);
490 1.1 christos }
491 1.1 christos else
492 1.1 christos {
493 1.1 christos len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
494 1.1 christos stub_name = bfd_malloc (len);
495 1.1 christos if (stub_name != NULL)
496 1.1 christos sprintf (stub_name, "%08x_%x:%x+%x",
497 1.1 christos input_section->id & 0xffffffff,
498 1.1 christos sym_sec->id & 0xffffffff,
499 1.1 christos (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
500 1.1 christos (int) rela->r_addend & 0xffffffff);
501 1.1 christos }
502 1.1 christos return stub_name;
503 1.1 christos }
504 1.1 christos
505 1.1 christos /* Look up an entry in the stub hash. Stub entries are cached because
506 1.1 christos creating the stub name takes a bit of time. */
507 1.1 christos
508 1.1 christos static struct elf32_hppa_stub_hash_entry *
509 1.1 christos hppa_get_stub_entry (const asection *input_section,
510 1.1 christos const asection *sym_sec,
511 1.1 christos struct elf32_hppa_link_hash_entry *hh,
512 1.1 christos const Elf_Internal_Rela *rela,
513 1.1 christos struct elf32_hppa_link_hash_table *htab)
514 1.1 christos {
515 1.1 christos struct elf32_hppa_stub_hash_entry *hsh_entry;
516 1.1 christos const asection *id_sec;
517 1.1 christos
518 1.1 christos /* If this input section is part of a group of sections sharing one
519 1.1 christos stub section, then use the id of the first section in the group.
520 1.1 christos Stub names need to include a section id, as there may well be
521 1.1 christos more than one stub used to reach say, printf, and we need to
522 1.1 christos distinguish between them. */
523 1.1 christos id_sec = htab->stub_group[input_section->id].link_sec;
524 1.1 christos
525 1.1 christos if (hh != NULL && hh->hsh_cache != NULL
526 1.1 christos && hh->hsh_cache->hh == hh
527 1.1 christos && hh->hsh_cache->id_sec == id_sec)
528 1.1 christos {
529 1.1 christos hsh_entry = hh->hsh_cache;
530 1.1 christos }
531 1.1 christos else
532 1.1 christos {
533 1.1 christos char *stub_name;
534 1.1 christos
535 1.1 christos stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
536 1.1 christos if (stub_name == NULL)
537 1.1 christos return NULL;
538 1.1 christos
539 1.1 christos hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
540 1.1 christos stub_name, FALSE, FALSE);
541 1.1 christos if (hh != NULL)
542 1.1 christos hh->hsh_cache = hsh_entry;
543 1.1 christos
544 1.1 christos free (stub_name);
545 1.1 christos }
546 1.1 christos
547 1.1 christos return hsh_entry;
548 1.1 christos }
549 1.1 christos
550 1.1 christos /* Add a new stub entry to the stub hash. Not all fields of the new
551 1.1 christos stub entry are initialised. */
552 1.1 christos
553 1.1 christos static struct elf32_hppa_stub_hash_entry *
554 1.1 christos hppa_add_stub (const char *stub_name,
555 1.1 christos asection *section,
556 1.1 christos struct elf32_hppa_link_hash_table *htab)
557 1.1 christos {
558 1.1 christos asection *link_sec;
559 1.1 christos asection *stub_sec;
560 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
561 1.1 christos
562 1.1 christos link_sec = htab->stub_group[section->id].link_sec;
563 1.1 christos stub_sec = htab->stub_group[section->id].stub_sec;
564 1.1 christos if (stub_sec == NULL)
565 1.1 christos {
566 1.1 christos stub_sec = htab->stub_group[link_sec->id].stub_sec;
567 1.1 christos if (stub_sec == NULL)
568 1.1 christos {
569 1.1 christos size_t namelen;
570 1.1 christos bfd_size_type len;
571 1.1 christos char *s_name;
572 1.1 christos
573 1.1 christos namelen = strlen (link_sec->name);
574 1.1 christos len = namelen + sizeof (STUB_SUFFIX);
575 1.1 christos s_name = bfd_alloc (htab->stub_bfd, len);
576 1.1 christos if (s_name == NULL)
577 1.1 christos return NULL;
578 1.1 christos
579 1.1 christos memcpy (s_name, link_sec->name, namelen);
580 1.1 christos memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
581 1.1 christos stub_sec = (*htab->add_stub_section) (s_name, link_sec);
582 1.1 christos if (stub_sec == NULL)
583 1.1 christos return NULL;
584 1.1 christos htab->stub_group[link_sec->id].stub_sec = stub_sec;
585 1.1 christos }
586 1.1 christos htab->stub_group[section->id].stub_sec = stub_sec;
587 1.1 christos }
588 1.1 christos
589 1.1 christos /* Enter this entry into the linker stub hash table. */
590 1.1 christos hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
591 1.1 christos TRUE, FALSE);
592 1.1 christos if (hsh == NULL)
593 1.1 christos {
594 1.1 christos (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
595 1.1 christos section->owner,
596 1.1 christos stub_name);
597 1.1 christos return NULL;
598 1.1 christos }
599 1.1 christos
600 1.1 christos hsh->stub_sec = stub_sec;
601 1.1 christos hsh->stub_offset = 0;
602 1.1 christos hsh->id_sec = link_sec;
603 1.1 christos return hsh;
604 1.1 christos }
605 1.1 christos
606 1.1 christos /* Determine the type of stub needed, if any, for a call. */
607 1.1 christos
608 1.1 christos static enum elf32_hppa_stub_type
609 1.1 christos hppa_type_of_stub (asection *input_sec,
610 1.1 christos const Elf_Internal_Rela *rela,
611 1.1 christos struct elf32_hppa_link_hash_entry *hh,
612 1.1 christos bfd_vma destination,
613 1.1 christos struct bfd_link_info *info)
614 1.1 christos {
615 1.1 christos bfd_vma location;
616 1.1 christos bfd_vma branch_offset;
617 1.1 christos bfd_vma max_branch_offset;
618 1.1 christos unsigned int r_type;
619 1.1 christos
620 1.1 christos if (hh != NULL
621 1.1 christos && hh->eh.plt.offset != (bfd_vma) -1
622 1.1 christos && hh->eh.dynindx != -1
623 1.1 christos && !hh->plabel
624 1.1.1.5 christos && (bfd_link_pic (info)
625 1.1 christos || !hh->eh.def_regular
626 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak))
627 1.1 christos {
628 1.1 christos /* We need an import stub. Decide between hppa_stub_import
629 1.1 christos and hppa_stub_import_shared later. */
630 1.1 christos return hppa_stub_import;
631 1.1 christos }
632 1.1 christos
633 1.1 christos /* Determine where the call point is. */
634 1.1 christos location = (input_sec->output_offset
635 1.1 christos + input_sec->output_section->vma
636 1.1 christos + rela->r_offset);
637 1.1 christos
638 1.1 christos branch_offset = destination - location - 8;
639 1.1 christos r_type = ELF32_R_TYPE (rela->r_info);
640 1.1 christos
641 1.1 christos /* Determine if a long branch stub is needed. parisc branch offsets
642 1.1 christos are relative to the second instruction past the branch, ie. +8
643 1.1 christos bytes on from the branch instruction location. The offset is
644 1.1 christos signed and counts in units of 4 bytes. */
645 1.1 christos if (r_type == (unsigned int) R_PARISC_PCREL17F)
646 1.1 christos max_branch_offset = (1 << (17 - 1)) << 2;
647 1.1 christos
648 1.1 christos else if (r_type == (unsigned int) R_PARISC_PCREL12F)
649 1.1 christos max_branch_offset = (1 << (12 - 1)) << 2;
650 1.1 christos
651 1.1 christos else /* R_PARISC_PCREL22F. */
652 1.1 christos max_branch_offset = (1 << (22 - 1)) << 2;
653 1.1 christos
654 1.1 christos if (branch_offset + max_branch_offset >= 2*max_branch_offset)
655 1.1 christos return hppa_stub_long_branch;
656 1.1 christos
657 1.1 christos return hppa_stub_none;
658 1.1 christos }
659 1.1 christos
660 1.1 christos /* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
661 1.1 christos IN_ARG contains the link info pointer. */
662 1.1 christos
663 1.1 christos #define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
664 1.1 christos #define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
665 1.1 christos
666 1.1 christos #define BL_R1 0xe8200000 /* b,l .+8,%r1 */
667 1.1 christos #define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
668 1.1 christos #define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
669 1.1 christos
670 1.1 christos #define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
671 1.1 christos #define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
672 1.1 christos #define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
673 1.1 christos #define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
674 1.1 christos
675 1.1 christos #define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
676 1.1 christos #define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
677 1.1 christos
678 1.1 christos #define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
679 1.1 christos #define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
680 1.1 christos #define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
681 1.1 christos #define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
682 1.1 christos
683 1.1 christos #define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
684 1.1 christos #define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
685 1.1 christos #define NOP 0x08000240 /* nop */
686 1.1 christos #define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
687 1.1 christos #define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
688 1.1 christos #define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
689 1.1 christos
690 1.1 christos #ifndef R19_STUBS
691 1.1 christos #define R19_STUBS 1
692 1.1 christos #endif
693 1.1 christos
694 1.1 christos #if R19_STUBS
695 1.1 christos #define LDW_R1_DLT LDW_R1_R19
696 1.1 christos #else
697 1.1 christos #define LDW_R1_DLT LDW_R1_DP
698 1.1 christos #endif
699 1.1 christos
700 1.1 christos static bfd_boolean
701 1.1 christos hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
702 1.1 christos {
703 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
704 1.1 christos struct bfd_link_info *info;
705 1.1 christos struct elf32_hppa_link_hash_table *htab;
706 1.1 christos asection *stub_sec;
707 1.1 christos bfd *stub_bfd;
708 1.1 christos bfd_byte *loc;
709 1.1 christos bfd_vma sym_value;
710 1.1 christos bfd_vma insn;
711 1.1 christos bfd_vma off;
712 1.1 christos int val;
713 1.1 christos int size;
714 1.1 christos
715 1.1 christos /* Massage our args to the form they really have. */
716 1.1 christos hsh = hppa_stub_hash_entry (bh);
717 1.1 christos info = (struct bfd_link_info *)in_arg;
718 1.1 christos
719 1.1 christos htab = hppa_link_hash_table (info);
720 1.1 christos if (htab == NULL)
721 1.1 christos return FALSE;
722 1.1 christos
723 1.1 christos stub_sec = hsh->stub_sec;
724 1.1 christos
725 1.1 christos /* Make a note of the offset within the stubs for this entry. */
726 1.1 christos hsh->stub_offset = stub_sec->size;
727 1.1 christos loc = stub_sec->contents + hsh->stub_offset;
728 1.1 christos
729 1.1 christos stub_bfd = stub_sec->owner;
730 1.1 christos
731 1.1 christos switch (hsh->stub_type)
732 1.1 christos {
733 1.1 christos case hppa_stub_long_branch:
734 1.1 christos /* Create the long branch. A long branch is formed with "ldil"
735 1.1 christos loading the upper bits of the target address into a register,
736 1.1 christos then branching with "be" which adds in the lower bits.
737 1.1 christos The "be" has its delay slot nullified. */
738 1.1 christos sym_value = (hsh->target_value
739 1.1 christos + hsh->target_section->output_offset
740 1.1 christos + hsh->target_section->output_section->vma);
741 1.1 christos
742 1.1 christos val = hppa_field_adjust (sym_value, 0, e_lrsel);
743 1.1 christos insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
744 1.1 christos bfd_put_32 (stub_bfd, insn, loc);
745 1.1 christos
746 1.1 christos val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
747 1.1 christos insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
748 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 4);
749 1.1 christos
750 1.1 christos size = 8;
751 1.1 christos break;
752 1.1 christos
753 1.1 christos case hppa_stub_long_branch_shared:
754 1.1 christos /* Branches are relative. This is where we are going to. */
755 1.1 christos sym_value = (hsh->target_value
756 1.1 christos + hsh->target_section->output_offset
757 1.1 christos + hsh->target_section->output_section->vma);
758 1.1 christos
759 1.1 christos /* And this is where we are coming from, more or less. */
760 1.1 christos sym_value -= (hsh->stub_offset
761 1.1 christos + stub_sec->output_offset
762 1.1 christos + stub_sec->output_section->vma);
763 1.1 christos
764 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
765 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
766 1.1 christos insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
767 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 4);
768 1.1 christos
769 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
770 1.1 christos insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
771 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 8);
772 1.1 christos size = 12;
773 1.1 christos break;
774 1.1 christos
775 1.1 christos case hppa_stub_import:
776 1.1 christos case hppa_stub_import_shared:
777 1.1 christos off = hsh->hh->eh.plt.offset;
778 1.1 christos if (off >= (bfd_vma) -2)
779 1.1 christos abort ();
780 1.1 christos
781 1.1 christos off &= ~ (bfd_vma) 1;
782 1.1 christos sym_value = (off
783 1.1 christos + htab->splt->output_offset
784 1.1 christos + htab->splt->output_section->vma
785 1.1 christos - elf_gp (htab->splt->output_section->owner));
786 1.1 christos
787 1.1 christos insn = ADDIL_DP;
788 1.1 christos #if R19_STUBS
789 1.1 christos if (hsh->stub_type == hppa_stub_import_shared)
790 1.1 christos insn = ADDIL_R19;
791 1.1 christos #endif
792 1.1 christos val = hppa_field_adjust (sym_value, 0, e_lrsel),
793 1.1 christos insn = hppa_rebuild_insn ((int) insn, val, 21);
794 1.1 christos bfd_put_32 (stub_bfd, insn, loc);
795 1.1 christos
796 1.1 christos /* It is critical to use lrsel/rrsel here because we are using
797 1.1 christos two different offsets (+0 and +4) from sym_value. If we use
798 1.1 christos lsel/rsel then with unfortunate sym_values we will round
799 1.1 christos sym_value+4 up to the next 2k block leading to a mis-match
800 1.1 christos between the lsel and rsel value. */
801 1.1 christos val = hppa_field_adjust (sym_value, 0, e_rrsel);
802 1.1 christos insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
803 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 4);
804 1.1 christos
805 1.1 christos if (htab->multi_subspace)
806 1.1 christos {
807 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
808 1.1 christos insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
809 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 8);
810 1.1 christos
811 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
812 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
813 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
814 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
815 1.1 christos
816 1.1 christos size = 28;
817 1.1 christos }
818 1.1 christos else
819 1.1 christos {
820 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
821 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
822 1.1 christos insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
823 1.1 christos bfd_put_32 (stub_bfd, insn, loc + 12);
824 1.1 christos
825 1.1 christos size = 16;
826 1.1 christos }
827 1.1 christos
828 1.1 christos break;
829 1.1 christos
830 1.1 christos case hppa_stub_export:
831 1.1 christos /* Branches are relative. This is where we are going to. */
832 1.1 christos sym_value = (hsh->target_value
833 1.1 christos + hsh->target_section->output_offset
834 1.1 christos + hsh->target_section->output_section->vma);
835 1.1 christos
836 1.1 christos /* And this is where we are coming from. */
837 1.1 christos sym_value -= (hsh->stub_offset
838 1.1 christos + stub_sec->output_offset
839 1.1 christos + stub_sec->output_section->vma);
840 1.1 christos
841 1.1 christos if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
842 1.1 christos && (!htab->has_22bit_branch
843 1.1 christos || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
844 1.1 christos {
845 1.1 christos (*_bfd_error_handler)
846 1.1 christos (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
847 1.1 christos hsh->target_section->owner,
848 1.1 christos stub_sec,
849 1.1 christos (long) hsh->stub_offset,
850 1.1 christos hsh->bh_root.string);
851 1.1 christos bfd_set_error (bfd_error_bad_value);
852 1.1 christos return FALSE;
853 1.1 christos }
854 1.1 christos
855 1.1 christos val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
856 1.1 christos if (!htab->has_22bit_branch)
857 1.1 christos insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
858 1.1 christos else
859 1.1 christos insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
860 1.1 christos bfd_put_32 (stub_bfd, insn, loc);
861 1.1 christos
862 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
863 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
864 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
865 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
866 1.1 christos bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
867 1.1 christos
868 1.1 christos /* Point the function symbol at the stub. */
869 1.1 christos hsh->hh->eh.root.u.def.section = stub_sec;
870 1.1 christos hsh->hh->eh.root.u.def.value = stub_sec->size;
871 1.1 christos
872 1.1 christos size = 24;
873 1.1 christos break;
874 1.1 christos
875 1.1 christos default:
876 1.1 christos BFD_FAIL ();
877 1.1 christos return FALSE;
878 1.1 christos }
879 1.1 christos
880 1.1 christos stub_sec->size += size;
881 1.1 christos return TRUE;
882 1.1 christos }
883 1.1 christos
884 1.1 christos #undef LDIL_R1
885 1.1 christos #undef BE_SR4_R1
886 1.1 christos #undef BL_R1
887 1.1 christos #undef ADDIL_R1
888 1.1 christos #undef DEPI_R1
889 1.1 christos #undef LDW_R1_R21
890 1.1 christos #undef LDW_R1_DLT
891 1.1 christos #undef LDW_R1_R19
892 1.1 christos #undef ADDIL_R19
893 1.1 christos #undef LDW_R1_DP
894 1.1 christos #undef LDSID_R21_R1
895 1.1 christos #undef MTSP_R1
896 1.1 christos #undef BE_SR0_R21
897 1.1 christos #undef STW_RP
898 1.1 christos #undef BV_R0_R21
899 1.1 christos #undef BL_RP
900 1.1 christos #undef NOP
901 1.1 christos #undef LDW_RP
902 1.1 christos #undef LDSID_RP_R1
903 1.1 christos #undef BE_SR0_RP
904 1.1 christos
905 1.1 christos /* As above, but don't actually build the stub. Just bump offset so
906 1.1 christos we know stub section sizes. */
907 1.1 christos
908 1.1 christos static bfd_boolean
909 1.1 christos hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
910 1.1 christos {
911 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
912 1.1 christos struct elf32_hppa_link_hash_table *htab;
913 1.1 christos int size;
914 1.1 christos
915 1.1 christos /* Massage our args to the form they really have. */
916 1.1 christos hsh = hppa_stub_hash_entry (bh);
917 1.1 christos htab = in_arg;
918 1.1 christos
919 1.1 christos if (hsh->stub_type == hppa_stub_long_branch)
920 1.1 christos size = 8;
921 1.1 christos else if (hsh->stub_type == hppa_stub_long_branch_shared)
922 1.1 christos size = 12;
923 1.1 christos else if (hsh->stub_type == hppa_stub_export)
924 1.1 christos size = 24;
925 1.1 christos else /* hppa_stub_import or hppa_stub_import_shared. */
926 1.1 christos {
927 1.1 christos if (htab->multi_subspace)
928 1.1 christos size = 28;
929 1.1 christos else
930 1.1 christos size = 16;
931 1.1 christos }
932 1.1 christos
933 1.1 christos hsh->stub_sec->size += size;
934 1.1 christos return TRUE;
935 1.1 christos }
936 1.1 christos
937 1.1 christos /* Return nonzero if ABFD represents an HPPA ELF32 file.
938 1.1 christos Additionally we set the default architecture and machine. */
939 1.1 christos
940 1.1 christos static bfd_boolean
941 1.1 christos elf32_hppa_object_p (bfd *abfd)
942 1.1 christos {
943 1.1 christos Elf_Internal_Ehdr * i_ehdrp;
944 1.1 christos unsigned int flags;
945 1.1 christos
946 1.1 christos i_ehdrp = elf_elfheader (abfd);
947 1.1 christos if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
948 1.1 christos {
949 1.1.1.2 christos /* GCC on hppa-linux produces binaries with OSABI=GNU,
950 1.1 christos but the kernel produces corefiles with OSABI=SysV. */
951 1.1.1.2 christos if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
952 1.1 christos i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
953 1.1 christos return FALSE;
954 1.1 christos }
955 1.1 christos else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
956 1.1 christos {
957 1.1 christos /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
958 1.1 christos but the kernel produces corefiles with OSABI=SysV. */
959 1.1 christos if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
960 1.1 christos i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
961 1.1 christos return FALSE;
962 1.1 christos }
963 1.1 christos else
964 1.1 christos {
965 1.1 christos if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
966 1.1 christos return FALSE;
967 1.1 christos }
968 1.1 christos
969 1.1 christos flags = i_ehdrp->e_flags;
970 1.1 christos switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
971 1.1 christos {
972 1.1 christos case EFA_PARISC_1_0:
973 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
974 1.1 christos case EFA_PARISC_1_1:
975 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
976 1.1 christos case EFA_PARISC_2_0:
977 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
978 1.1 christos case EFA_PARISC_2_0 | EF_PARISC_WIDE:
979 1.1 christos return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
980 1.1 christos }
981 1.1 christos return TRUE;
982 1.1 christos }
983 1.1 christos
984 1.1 christos /* Create the .plt and .got sections, and set up our hash table
985 1.1 christos short-cuts to various dynamic sections. */
986 1.1 christos
987 1.1 christos static bfd_boolean
988 1.1 christos elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
989 1.1 christos {
990 1.1 christos struct elf32_hppa_link_hash_table *htab;
991 1.1 christos struct elf_link_hash_entry *eh;
992 1.1 christos
993 1.1 christos /* Don't try to create the .plt and .got twice. */
994 1.1 christos htab = hppa_link_hash_table (info);
995 1.1 christos if (htab == NULL)
996 1.1 christos return FALSE;
997 1.1 christos if (htab->splt != NULL)
998 1.1 christos return TRUE;
999 1.1 christos
1000 1.1 christos /* Call the generic code to do most of the work. */
1001 1.1 christos if (! _bfd_elf_create_dynamic_sections (abfd, info))
1002 1.1 christos return FALSE;
1003 1.1 christos
1004 1.1.1.2 christos htab->splt = bfd_get_linker_section (abfd, ".plt");
1005 1.1.1.2 christos htab->srelplt = bfd_get_linker_section (abfd, ".rela.plt");
1006 1.1 christos
1007 1.1.1.2 christos htab->sgot = bfd_get_linker_section (abfd, ".got");
1008 1.1.1.2 christos htab->srelgot = bfd_get_linker_section (abfd, ".rela.got");
1009 1.1 christos
1010 1.1.1.2 christos htab->sdynbss = bfd_get_linker_section (abfd, ".dynbss");
1011 1.1.1.2 christos htab->srelbss = bfd_get_linker_section (abfd, ".rela.bss");
1012 1.1 christos
1013 1.1 christos /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
1014 1.1 christos application, because __canonicalize_funcptr_for_compare needs it. */
1015 1.1 christos eh = elf_hash_table (info)->hgot;
1016 1.1 christos eh->forced_local = 0;
1017 1.1 christos eh->other = STV_DEFAULT;
1018 1.1 christos return bfd_elf_link_record_dynamic_symbol (info, eh);
1019 1.1 christos }
1020 1.1 christos
1021 1.1 christos /* Copy the extra info we tack onto an elf_link_hash_entry. */
1022 1.1 christos
1023 1.1 christos static void
1024 1.1 christos elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
1025 1.1 christos struct elf_link_hash_entry *eh_dir,
1026 1.1 christos struct elf_link_hash_entry *eh_ind)
1027 1.1 christos {
1028 1.1 christos struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
1029 1.1 christos
1030 1.1 christos hh_dir = hppa_elf_hash_entry (eh_dir);
1031 1.1 christos hh_ind = hppa_elf_hash_entry (eh_ind);
1032 1.1 christos
1033 1.1 christos if (hh_ind->dyn_relocs != NULL)
1034 1.1 christos {
1035 1.1 christos if (hh_dir->dyn_relocs != NULL)
1036 1.1 christos {
1037 1.1 christos struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1038 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
1039 1.1 christos
1040 1.1 christos /* Add reloc counts against the indirect sym to the direct sym
1041 1.1 christos list. Merge any entries against the same section. */
1042 1.1 christos for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
1043 1.1 christos {
1044 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_q;
1045 1.1 christos
1046 1.1 christos for (hdh_q = hh_dir->dyn_relocs;
1047 1.1 christos hdh_q != NULL;
1048 1.1 christos hdh_q = hdh_q->hdh_next)
1049 1.1 christos if (hdh_q->sec == hdh_p->sec)
1050 1.1 christos {
1051 1.1 christos #if RELATIVE_DYNRELOCS
1052 1.1 christos hdh_q->relative_count += hdh_p->relative_count;
1053 1.1 christos #endif
1054 1.1 christos hdh_q->count += hdh_p->count;
1055 1.1 christos *hdh_pp = hdh_p->hdh_next;
1056 1.1 christos break;
1057 1.1 christos }
1058 1.1 christos if (hdh_q == NULL)
1059 1.1 christos hdh_pp = &hdh_p->hdh_next;
1060 1.1 christos }
1061 1.1 christos *hdh_pp = hh_dir->dyn_relocs;
1062 1.1 christos }
1063 1.1 christos
1064 1.1 christos hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1065 1.1 christos hh_ind->dyn_relocs = NULL;
1066 1.1 christos }
1067 1.1 christos
1068 1.1 christos if (ELIMINATE_COPY_RELOCS
1069 1.1 christos && eh_ind->root.type != bfd_link_hash_indirect
1070 1.1 christos && eh_dir->dynamic_adjusted)
1071 1.1 christos {
1072 1.1 christos /* If called to transfer flags for a weakdef during processing
1073 1.1 christos of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1074 1.1 christos We clear it ourselves for ELIMINATE_COPY_RELOCS. */
1075 1.1 christos eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
1076 1.1 christos eh_dir->ref_regular |= eh_ind->ref_regular;
1077 1.1 christos eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1078 1.1 christos eh_dir->needs_plt |= eh_ind->needs_plt;
1079 1.1 christos }
1080 1.1 christos else
1081 1.1 christos {
1082 1.1 christos if (eh_ind->root.type == bfd_link_hash_indirect
1083 1.1 christos && eh_dir->got.refcount <= 0)
1084 1.1 christos {
1085 1.1 christos hh_dir->tls_type = hh_ind->tls_type;
1086 1.1 christos hh_ind->tls_type = GOT_UNKNOWN;
1087 1.1 christos }
1088 1.1 christos
1089 1.1 christos _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1090 1.1 christos }
1091 1.1 christos }
1092 1.1 christos
1093 1.1 christos static int
1094 1.1 christos elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1095 1.1 christos int r_type, int is_local ATTRIBUTE_UNUSED)
1096 1.1 christos {
1097 1.1 christos /* For now we don't support linker optimizations. */
1098 1.1 christos return r_type;
1099 1.1 christos }
1100 1.1 christos
1101 1.1 christos /* Return a pointer to the local GOT, PLT and TLS reference counts
1102 1.1 christos for ABFD. Returns NULL if the storage allocation fails. */
1103 1.1 christos
1104 1.1 christos static bfd_signed_vma *
1105 1.1 christos hppa32_elf_local_refcounts (bfd *abfd)
1106 1.1 christos {
1107 1.1 christos Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1108 1.1 christos bfd_signed_vma *local_refcounts;
1109 1.1.1.2 christos
1110 1.1 christos local_refcounts = elf_local_got_refcounts (abfd);
1111 1.1 christos if (local_refcounts == NULL)
1112 1.1 christos {
1113 1.1 christos bfd_size_type size;
1114 1.1 christos
1115 1.1 christos /* Allocate space for local GOT and PLT reference
1116 1.1 christos counts. Done this way to save polluting elf_obj_tdata
1117 1.1 christos with another target specific pointer. */
1118 1.1 christos size = symtab_hdr->sh_info;
1119 1.1 christos size *= 2 * sizeof (bfd_signed_vma);
1120 1.1 christos /* Add in space to store the local GOT TLS types. */
1121 1.1 christos size += symtab_hdr->sh_info;
1122 1.1 christos local_refcounts = bfd_zalloc (abfd, size);
1123 1.1 christos if (local_refcounts == NULL)
1124 1.1 christos return NULL;
1125 1.1 christos elf_local_got_refcounts (abfd) = local_refcounts;
1126 1.1 christos memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1127 1.1 christos symtab_hdr->sh_info);
1128 1.1 christos }
1129 1.1 christos return local_refcounts;
1130 1.1 christos }
1131 1.1 christos
1132 1.1 christos
1133 1.1 christos /* Look through the relocs for a section during the first phase, and
1134 1.1 christos calculate needed space in the global offset table, procedure linkage
1135 1.1 christos table, and dynamic reloc sections. At this point we haven't
1136 1.1 christos necessarily read all the input files. */
1137 1.1 christos
1138 1.1 christos static bfd_boolean
1139 1.1 christos elf32_hppa_check_relocs (bfd *abfd,
1140 1.1 christos struct bfd_link_info *info,
1141 1.1 christos asection *sec,
1142 1.1 christos const Elf_Internal_Rela *relocs)
1143 1.1 christos {
1144 1.1 christos Elf_Internal_Shdr *symtab_hdr;
1145 1.1 christos struct elf_link_hash_entry **eh_syms;
1146 1.1 christos const Elf_Internal_Rela *rela;
1147 1.1 christos const Elf_Internal_Rela *rela_end;
1148 1.1 christos struct elf32_hppa_link_hash_table *htab;
1149 1.1 christos asection *sreloc;
1150 1.1 christos int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
1151 1.1 christos
1152 1.1.1.5 christos if (bfd_link_relocatable (info))
1153 1.1 christos return TRUE;
1154 1.1 christos
1155 1.1 christos htab = hppa_link_hash_table (info);
1156 1.1 christos if (htab == NULL)
1157 1.1 christos return FALSE;
1158 1.1 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1159 1.1 christos eh_syms = elf_sym_hashes (abfd);
1160 1.1 christos sreloc = NULL;
1161 1.1 christos
1162 1.1 christos rela_end = relocs + sec->reloc_count;
1163 1.1 christos for (rela = relocs; rela < rela_end; rela++)
1164 1.1 christos {
1165 1.1 christos enum {
1166 1.1 christos NEED_GOT = 1,
1167 1.1 christos NEED_PLT = 2,
1168 1.1 christos NEED_DYNREL = 4,
1169 1.1 christos PLT_PLABEL = 8
1170 1.1 christos };
1171 1.1 christos
1172 1.1 christos unsigned int r_symndx, r_type;
1173 1.1 christos struct elf32_hppa_link_hash_entry *hh;
1174 1.1 christos int need_entry = 0;
1175 1.1 christos
1176 1.1 christos r_symndx = ELF32_R_SYM (rela->r_info);
1177 1.1 christos
1178 1.1 christos if (r_symndx < symtab_hdr->sh_info)
1179 1.1 christos hh = NULL;
1180 1.1 christos else
1181 1.1 christos {
1182 1.1 christos hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
1183 1.1 christos while (hh->eh.root.type == bfd_link_hash_indirect
1184 1.1 christos || hh->eh.root.type == bfd_link_hash_warning)
1185 1.1 christos hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
1186 1.1.1.3 christos
1187 1.1.1.3 christos /* PR15323, ref flags aren't set for references in the same
1188 1.1.1.3 christos object. */
1189 1.1.1.3 christos hh->eh.root.non_ir_ref = 1;
1190 1.1 christos }
1191 1.1 christos
1192 1.1 christos r_type = ELF32_R_TYPE (rela->r_info);
1193 1.1 christos r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
1194 1.1 christos
1195 1.1 christos switch (r_type)
1196 1.1 christos {
1197 1.1 christos case R_PARISC_DLTIND14F:
1198 1.1 christos case R_PARISC_DLTIND14R:
1199 1.1 christos case R_PARISC_DLTIND21L:
1200 1.1 christos /* This symbol requires a global offset table entry. */
1201 1.1 christos need_entry = NEED_GOT;
1202 1.1 christos break;
1203 1.1 christos
1204 1.1 christos case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1205 1.1 christos case R_PARISC_PLABEL21L:
1206 1.1 christos case R_PARISC_PLABEL32:
1207 1.1 christos /* If the addend is non-zero, we break badly. */
1208 1.1 christos if (rela->r_addend != 0)
1209 1.1 christos abort ();
1210 1.1 christos
1211 1.1 christos /* If we are creating a shared library, then we need to
1212 1.1 christos create a PLT entry for all PLABELs, because PLABELs with
1213 1.1 christos local symbols may be passed via a pointer to another
1214 1.1 christos object. Additionally, output a dynamic relocation
1215 1.1 christos pointing to the PLT entry.
1216 1.1 christos
1217 1.1 christos For executables, the original 32-bit ABI allowed two
1218 1.1 christos different styles of PLABELs (function pointers): For
1219 1.1 christos global functions, the PLABEL word points into the .plt
1220 1.1 christos two bytes past a (function address, gp) pair, and for
1221 1.1 christos local functions the PLABEL points directly at the
1222 1.1 christos function. The magic +2 for the first type allows us to
1223 1.1 christos differentiate between the two. As you can imagine, this
1224 1.1 christos is a real pain when it comes to generating code to call
1225 1.1 christos functions indirectly or to compare function pointers.
1226 1.1 christos We avoid the mess by always pointing a PLABEL into the
1227 1.1 christos .plt, even for local functions. */
1228 1.1 christos need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
1229 1.1 christos break;
1230 1.1 christos
1231 1.1 christos case R_PARISC_PCREL12F:
1232 1.1 christos htab->has_12bit_branch = 1;
1233 1.1 christos goto branch_common;
1234 1.1 christos
1235 1.1 christos case R_PARISC_PCREL17C:
1236 1.1 christos case R_PARISC_PCREL17F:
1237 1.1 christos htab->has_17bit_branch = 1;
1238 1.1 christos goto branch_common;
1239 1.1 christos
1240 1.1 christos case R_PARISC_PCREL22F:
1241 1.1 christos htab->has_22bit_branch = 1;
1242 1.1 christos branch_common:
1243 1.1 christos /* Function calls might need to go through the .plt, and
1244 1.1 christos might require long branch stubs. */
1245 1.1 christos if (hh == NULL)
1246 1.1 christos {
1247 1.1 christos /* We know local syms won't need a .plt entry, and if
1248 1.1 christos they need a long branch stub we can't guarantee that
1249 1.1 christos we can reach the stub. So just flag an error later
1250 1.1 christos if we're doing a shared link and find we need a long
1251 1.1 christos branch stub. */
1252 1.1 christos continue;
1253 1.1 christos }
1254 1.1 christos else
1255 1.1 christos {
1256 1.1 christos /* Global symbols will need a .plt entry if they remain
1257 1.1 christos global, and in most cases won't need a long branch
1258 1.1 christos stub. Unfortunately, we have to cater for the case
1259 1.1 christos where a symbol is forced local by versioning, or due
1260 1.1 christos to symbolic linking, and we lose the .plt entry. */
1261 1.1 christos need_entry = NEED_PLT;
1262 1.1 christos if (hh->eh.type == STT_PARISC_MILLI)
1263 1.1 christos need_entry = 0;
1264 1.1 christos }
1265 1.1 christos break;
1266 1.1 christos
1267 1.1 christos case R_PARISC_SEGBASE: /* Used to set segment base. */
1268 1.1 christos case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
1269 1.1 christos case R_PARISC_PCREL14F: /* PC relative load/store. */
1270 1.1 christos case R_PARISC_PCREL14R:
1271 1.1 christos case R_PARISC_PCREL17R: /* External branches. */
1272 1.1 christos case R_PARISC_PCREL21L: /* As above, and for load/store too. */
1273 1.1 christos case R_PARISC_PCREL32:
1274 1.1 christos /* We don't need to propagate the relocation if linking a
1275 1.1 christos shared object since these are section relative. */
1276 1.1 christos continue;
1277 1.1 christos
1278 1.1 christos case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1279 1.1 christos case R_PARISC_DPREL14R:
1280 1.1 christos case R_PARISC_DPREL21L:
1281 1.1.1.5 christos if (bfd_link_pic (info))
1282 1.1 christos {
1283 1.1 christos (*_bfd_error_handler)
1284 1.1 christos (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1285 1.1 christos abfd,
1286 1.1 christos elf_hppa_howto_table[r_type].name);
1287 1.1 christos bfd_set_error (bfd_error_bad_value);
1288 1.1 christos return FALSE;
1289 1.1 christos }
1290 1.1 christos /* Fall through. */
1291 1.1 christos
1292 1.1 christos case R_PARISC_DIR17F: /* Used for external branches. */
1293 1.1 christos case R_PARISC_DIR17R:
1294 1.1 christos case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1295 1.1 christos case R_PARISC_DIR14R:
1296 1.1 christos case R_PARISC_DIR21L: /* As above, and for ext branches too. */
1297 1.1 christos case R_PARISC_DIR32: /* .word relocs. */
1298 1.1 christos /* We may want to output a dynamic relocation later. */
1299 1.1 christos need_entry = NEED_DYNREL;
1300 1.1 christos break;
1301 1.1 christos
1302 1.1 christos /* This relocation describes the C++ object vtable hierarchy.
1303 1.1 christos Reconstruct it for later use during GC. */
1304 1.1 christos case R_PARISC_GNU_VTINHERIT:
1305 1.1 christos if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
1306 1.1 christos return FALSE;
1307 1.1 christos continue;
1308 1.1 christos
1309 1.1 christos /* This relocation describes which C++ vtable entries are actually
1310 1.1 christos used. Record for later use during GC. */
1311 1.1 christos case R_PARISC_GNU_VTENTRY:
1312 1.1 christos BFD_ASSERT (hh != NULL);
1313 1.1 christos if (hh != NULL
1314 1.1 christos && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
1315 1.1 christos return FALSE;
1316 1.1 christos continue;
1317 1.1 christos
1318 1.1 christos case R_PARISC_TLS_GD21L:
1319 1.1 christos case R_PARISC_TLS_GD14R:
1320 1.1 christos case R_PARISC_TLS_LDM21L:
1321 1.1 christos case R_PARISC_TLS_LDM14R:
1322 1.1 christos need_entry = NEED_GOT;
1323 1.1 christos break;
1324 1.1 christos
1325 1.1 christos case R_PARISC_TLS_IE21L:
1326 1.1 christos case R_PARISC_TLS_IE14R:
1327 1.1.1.5 christos if (bfd_link_pic (info))
1328 1.1 christos info->flags |= DF_STATIC_TLS;
1329 1.1 christos need_entry = NEED_GOT;
1330 1.1 christos break;
1331 1.1 christos
1332 1.1 christos default:
1333 1.1 christos continue;
1334 1.1 christos }
1335 1.1 christos
1336 1.1 christos /* Now carry out our orders. */
1337 1.1 christos if (need_entry & NEED_GOT)
1338 1.1 christos {
1339 1.1 christos switch (r_type)
1340 1.1 christos {
1341 1.1 christos default:
1342 1.1 christos tls_type = GOT_NORMAL;
1343 1.1 christos break;
1344 1.1 christos case R_PARISC_TLS_GD21L:
1345 1.1 christos case R_PARISC_TLS_GD14R:
1346 1.1 christos tls_type |= GOT_TLS_GD;
1347 1.1 christos break;
1348 1.1 christos case R_PARISC_TLS_LDM21L:
1349 1.1 christos case R_PARISC_TLS_LDM14R:
1350 1.1 christos tls_type |= GOT_TLS_LDM;
1351 1.1 christos break;
1352 1.1 christos case R_PARISC_TLS_IE21L:
1353 1.1 christos case R_PARISC_TLS_IE14R:
1354 1.1 christos tls_type |= GOT_TLS_IE;
1355 1.1 christos break;
1356 1.1 christos }
1357 1.1 christos
1358 1.1 christos /* Allocate space for a GOT entry, as well as a dynamic
1359 1.1 christos relocation for this entry. */
1360 1.1 christos if (htab->sgot == NULL)
1361 1.1 christos {
1362 1.1 christos if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
1363 1.1 christos return FALSE;
1364 1.1 christos }
1365 1.1 christos
1366 1.1 christos if (r_type == R_PARISC_TLS_LDM21L
1367 1.1 christos || r_type == R_PARISC_TLS_LDM14R)
1368 1.1 christos htab->tls_ldm_got.refcount += 1;
1369 1.1 christos else
1370 1.1 christos {
1371 1.1 christos if (hh != NULL)
1372 1.1 christos {
1373 1.1 christos hh->eh.got.refcount += 1;
1374 1.1 christos old_tls_type = hh->tls_type;
1375 1.1 christos }
1376 1.1 christos else
1377 1.1 christos {
1378 1.1 christos bfd_signed_vma *local_got_refcounts;
1379 1.1.1.2 christos
1380 1.1 christos /* This is a global offset table entry for a local symbol. */
1381 1.1 christos local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1382 1.1 christos if (local_got_refcounts == NULL)
1383 1.1 christos return FALSE;
1384 1.1 christos local_got_refcounts[r_symndx] += 1;
1385 1.1 christos
1386 1.1 christos old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1387 1.1 christos }
1388 1.1 christos
1389 1.1 christos tls_type |= old_tls_type;
1390 1.1 christos
1391 1.1 christos if (old_tls_type != tls_type)
1392 1.1 christos {
1393 1.1 christos if (hh != NULL)
1394 1.1 christos hh->tls_type = tls_type;
1395 1.1 christos else
1396 1.1 christos hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1397 1.1 christos }
1398 1.1 christos
1399 1.1 christos }
1400 1.1 christos }
1401 1.1 christos
1402 1.1 christos if (need_entry & NEED_PLT)
1403 1.1 christos {
1404 1.1 christos /* If we are creating a shared library, and this is a reloc
1405 1.1 christos against a weak symbol or a global symbol in a dynamic
1406 1.1 christos object, then we will be creating an import stub and a
1407 1.1 christos .plt entry for the symbol. Similarly, on a normal link
1408 1.1 christos to symbols defined in a dynamic object we'll need the
1409 1.1 christos import stub and a .plt entry. We don't know yet whether
1410 1.1 christos the symbol is defined or not, so make an entry anyway and
1411 1.1 christos clean up later in adjust_dynamic_symbol. */
1412 1.1 christos if ((sec->flags & SEC_ALLOC) != 0)
1413 1.1 christos {
1414 1.1 christos if (hh != NULL)
1415 1.1 christos {
1416 1.1 christos hh->eh.needs_plt = 1;
1417 1.1 christos hh->eh.plt.refcount += 1;
1418 1.1 christos
1419 1.1 christos /* If this .plt entry is for a plabel, mark it so
1420 1.1 christos that adjust_dynamic_symbol will keep the entry
1421 1.1 christos even if it appears to be local. */
1422 1.1 christos if (need_entry & PLT_PLABEL)
1423 1.1 christos hh->plabel = 1;
1424 1.1 christos }
1425 1.1 christos else if (need_entry & PLT_PLABEL)
1426 1.1 christos {
1427 1.1 christos bfd_signed_vma *local_got_refcounts;
1428 1.1 christos bfd_signed_vma *local_plt_refcounts;
1429 1.1 christos
1430 1.1 christos local_got_refcounts = hppa32_elf_local_refcounts (abfd);
1431 1.1 christos if (local_got_refcounts == NULL)
1432 1.1 christos return FALSE;
1433 1.1 christos local_plt_refcounts = (local_got_refcounts
1434 1.1 christos + symtab_hdr->sh_info);
1435 1.1 christos local_plt_refcounts[r_symndx] += 1;
1436 1.1 christos }
1437 1.1 christos }
1438 1.1 christos }
1439 1.1 christos
1440 1.1 christos if (need_entry & NEED_DYNREL)
1441 1.1 christos {
1442 1.1 christos /* Flag this symbol as having a non-got, non-plt reference
1443 1.1 christos so that we generate copy relocs if it turns out to be
1444 1.1 christos dynamic. */
1445 1.1.1.5 christos if (hh != NULL && !bfd_link_pic (info))
1446 1.1 christos hh->eh.non_got_ref = 1;
1447 1.1 christos
1448 1.1 christos /* If we are creating a shared library then we need to copy
1449 1.1 christos the reloc into the shared library. However, if we are
1450 1.1 christos linking with -Bsymbolic, we need only copy absolute
1451 1.1 christos relocs or relocs against symbols that are not defined in
1452 1.1 christos an object we are including in the link. PC- or DP- or
1453 1.1 christos DLT-relative relocs against any local sym or global sym
1454 1.1 christos with DEF_REGULAR set, can be discarded. At this point we
1455 1.1 christos have not seen all the input files, so it is possible that
1456 1.1 christos DEF_REGULAR is not set now but will be set later (it is
1457 1.1 christos never cleared). We account for that possibility below by
1458 1.1 christos storing information in the dyn_relocs field of the
1459 1.1 christos hash table entry.
1460 1.1 christos
1461 1.1 christos A similar situation to the -Bsymbolic case occurs when
1462 1.1 christos creating shared libraries and symbol visibility changes
1463 1.1 christos render the symbol local.
1464 1.1 christos
1465 1.1 christos As it turns out, all the relocs we will be creating here
1466 1.1 christos are absolute, so we cannot remove them on -Bsymbolic
1467 1.1 christos links or visibility changes anyway. A STUB_REL reloc
1468 1.1 christos is absolute too, as in that case it is the reloc in the
1469 1.1 christos stub we will be creating, rather than copying the PCREL
1470 1.1 christos reloc in the branch.
1471 1.1 christos
1472 1.1 christos If on the other hand, we are creating an executable, we
1473 1.1 christos may need to keep relocations for symbols satisfied by a
1474 1.1 christos dynamic library if we manage to avoid copy relocs for the
1475 1.1 christos symbol. */
1476 1.1.1.5 christos if ((bfd_link_pic (info)
1477 1.1 christos && (sec->flags & SEC_ALLOC) != 0
1478 1.1 christos && (IS_ABSOLUTE_RELOC (r_type)
1479 1.1 christos || (hh != NULL
1480 1.1.1.5 christos && (!SYMBOLIC_BIND (info, &hh->eh)
1481 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak
1482 1.1 christos || !hh->eh.def_regular))))
1483 1.1 christos || (ELIMINATE_COPY_RELOCS
1484 1.1.1.5 christos && !bfd_link_pic (info)
1485 1.1 christos && (sec->flags & SEC_ALLOC) != 0
1486 1.1 christos && hh != NULL
1487 1.1 christos && (hh->eh.root.type == bfd_link_hash_defweak
1488 1.1 christos || !hh->eh.def_regular)))
1489 1.1 christos {
1490 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
1491 1.1 christos struct elf32_hppa_dyn_reloc_entry **hdh_head;
1492 1.1 christos
1493 1.1 christos /* Create a reloc section in dynobj and make room for
1494 1.1 christos this reloc. */
1495 1.1 christos if (sreloc == NULL)
1496 1.1 christos {
1497 1.1 christos sreloc = _bfd_elf_make_dynamic_reloc_section
1498 1.1 christos (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1499 1.1 christos
1500 1.1 christos if (sreloc == NULL)
1501 1.1 christos {
1502 1.1 christos bfd_set_error (bfd_error_bad_value);
1503 1.1 christos return FALSE;
1504 1.1 christos }
1505 1.1 christos }
1506 1.1 christos
1507 1.1 christos /* If this is a global symbol, we count the number of
1508 1.1 christos relocations we need for this symbol. */
1509 1.1 christos if (hh != NULL)
1510 1.1 christos {
1511 1.1 christos hdh_head = &hh->dyn_relocs;
1512 1.1 christos }
1513 1.1 christos else
1514 1.1 christos {
1515 1.1 christos /* Track dynamic relocs needed for local syms too.
1516 1.1 christos We really need local syms available to do this
1517 1.1 christos easily. Oh well. */
1518 1.1 christos asection *sr;
1519 1.1 christos void *vpp;
1520 1.1 christos Elf_Internal_Sym *isym;
1521 1.1 christos
1522 1.1 christos isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1523 1.1 christos abfd, r_symndx);
1524 1.1 christos if (isym == NULL)
1525 1.1 christos return FALSE;
1526 1.1 christos
1527 1.1 christos sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1528 1.1 christos if (sr == NULL)
1529 1.1 christos sr = sec;
1530 1.1 christos
1531 1.1 christos vpp = &elf_section_data (sr)->local_dynrel;
1532 1.1 christos hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
1533 1.1 christos }
1534 1.1 christos
1535 1.1 christos hdh_p = *hdh_head;
1536 1.1 christos if (hdh_p == NULL || hdh_p->sec != sec)
1537 1.1 christos {
1538 1.1 christos hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
1539 1.1 christos if (hdh_p == NULL)
1540 1.1 christos return FALSE;
1541 1.1 christos hdh_p->hdh_next = *hdh_head;
1542 1.1 christos *hdh_head = hdh_p;
1543 1.1 christos hdh_p->sec = sec;
1544 1.1 christos hdh_p->count = 0;
1545 1.1 christos #if RELATIVE_DYNRELOCS
1546 1.1 christos hdh_p->relative_count = 0;
1547 1.1 christos #endif
1548 1.1 christos }
1549 1.1 christos
1550 1.1 christos hdh_p->count += 1;
1551 1.1 christos #if RELATIVE_DYNRELOCS
1552 1.1 christos if (!IS_ABSOLUTE_RELOC (rtype))
1553 1.1 christos hdh_p->relative_count += 1;
1554 1.1 christos #endif
1555 1.1 christos }
1556 1.1 christos }
1557 1.1 christos }
1558 1.1 christos
1559 1.1 christos return TRUE;
1560 1.1 christos }
1561 1.1 christos
1562 1.1 christos /* Return the section that should be marked against garbage collection
1563 1.1 christos for a given relocation. */
1564 1.1 christos
1565 1.1 christos static asection *
1566 1.1 christos elf32_hppa_gc_mark_hook (asection *sec,
1567 1.1 christos struct bfd_link_info *info,
1568 1.1 christos Elf_Internal_Rela *rela,
1569 1.1 christos struct elf_link_hash_entry *hh,
1570 1.1 christos Elf_Internal_Sym *sym)
1571 1.1 christos {
1572 1.1 christos if (hh != NULL)
1573 1.1 christos switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1574 1.1 christos {
1575 1.1 christos case R_PARISC_GNU_VTINHERIT:
1576 1.1 christos case R_PARISC_GNU_VTENTRY:
1577 1.1 christos return NULL;
1578 1.1 christos }
1579 1.1 christos
1580 1.1 christos return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
1581 1.1 christos }
1582 1.1 christos
1583 1.1 christos /* Update the got and plt entry reference counts for the section being
1584 1.1 christos removed. */
1585 1.1 christos
1586 1.1 christos static bfd_boolean
1587 1.1 christos elf32_hppa_gc_sweep_hook (bfd *abfd,
1588 1.1 christos struct bfd_link_info *info ATTRIBUTE_UNUSED,
1589 1.1 christos asection *sec,
1590 1.1 christos const Elf_Internal_Rela *relocs)
1591 1.1 christos {
1592 1.1 christos Elf_Internal_Shdr *symtab_hdr;
1593 1.1 christos struct elf_link_hash_entry **eh_syms;
1594 1.1 christos bfd_signed_vma *local_got_refcounts;
1595 1.1 christos bfd_signed_vma *local_plt_refcounts;
1596 1.1 christos const Elf_Internal_Rela *rela, *relend;
1597 1.1 christos struct elf32_hppa_link_hash_table *htab;
1598 1.1 christos
1599 1.1.1.5 christos if (bfd_link_relocatable (info))
1600 1.1 christos return TRUE;
1601 1.1 christos
1602 1.1 christos htab = hppa_link_hash_table (info);
1603 1.1 christos if (htab == NULL)
1604 1.1 christos return FALSE;
1605 1.1 christos
1606 1.1 christos elf_section_data (sec)->local_dynrel = NULL;
1607 1.1 christos
1608 1.1 christos symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1609 1.1 christos eh_syms = elf_sym_hashes (abfd);
1610 1.1 christos local_got_refcounts = elf_local_got_refcounts (abfd);
1611 1.1 christos local_plt_refcounts = local_got_refcounts;
1612 1.1 christos if (local_plt_refcounts != NULL)
1613 1.1 christos local_plt_refcounts += symtab_hdr->sh_info;
1614 1.1 christos
1615 1.1 christos relend = relocs + sec->reloc_count;
1616 1.1 christos for (rela = relocs; rela < relend; rela++)
1617 1.1 christos {
1618 1.1 christos unsigned long r_symndx;
1619 1.1 christos unsigned int r_type;
1620 1.1 christos struct elf_link_hash_entry *eh = NULL;
1621 1.1 christos
1622 1.1 christos r_symndx = ELF32_R_SYM (rela->r_info);
1623 1.1 christos if (r_symndx >= symtab_hdr->sh_info)
1624 1.1 christos {
1625 1.1 christos struct elf32_hppa_link_hash_entry *hh;
1626 1.1 christos struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1627 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
1628 1.1 christos
1629 1.1 christos eh = eh_syms[r_symndx - symtab_hdr->sh_info];
1630 1.1 christos while (eh->root.type == bfd_link_hash_indirect
1631 1.1 christos || eh->root.type == bfd_link_hash_warning)
1632 1.1 christos eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
1633 1.1 christos hh = hppa_elf_hash_entry (eh);
1634 1.1 christos
1635 1.1 christos for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next)
1636 1.1 christos if (hdh_p->sec == sec)
1637 1.1 christos {
1638 1.1 christos /* Everything must go for SEC. */
1639 1.1 christos *hdh_pp = hdh_p->hdh_next;
1640 1.1 christos break;
1641 1.1 christos }
1642 1.1 christos }
1643 1.1 christos
1644 1.1 christos r_type = ELF32_R_TYPE (rela->r_info);
1645 1.1 christos r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
1646 1.1 christos
1647 1.1 christos switch (r_type)
1648 1.1 christos {
1649 1.1 christos case R_PARISC_DLTIND14F:
1650 1.1 christos case R_PARISC_DLTIND14R:
1651 1.1 christos case R_PARISC_DLTIND21L:
1652 1.1 christos case R_PARISC_TLS_GD21L:
1653 1.1 christos case R_PARISC_TLS_GD14R:
1654 1.1 christos case R_PARISC_TLS_IE21L:
1655 1.1 christos case R_PARISC_TLS_IE14R:
1656 1.1 christos if (eh != NULL)
1657 1.1 christos {
1658 1.1 christos if (eh->got.refcount > 0)
1659 1.1 christos eh->got.refcount -= 1;
1660 1.1 christos }
1661 1.1 christos else if (local_got_refcounts != NULL)
1662 1.1 christos {
1663 1.1 christos if (local_got_refcounts[r_symndx] > 0)
1664 1.1 christos local_got_refcounts[r_symndx] -= 1;
1665 1.1 christos }
1666 1.1 christos break;
1667 1.1 christos
1668 1.1 christos case R_PARISC_TLS_LDM21L:
1669 1.1 christos case R_PARISC_TLS_LDM14R:
1670 1.1 christos htab->tls_ldm_got.refcount -= 1;
1671 1.1 christos break;
1672 1.1 christos
1673 1.1 christos case R_PARISC_PCREL12F:
1674 1.1 christos case R_PARISC_PCREL17C:
1675 1.1 christos case R_PARISC_PCREL17F:
1676 1.1 christos case R_PARISC_PCREL22F:
1677 1.1 christos if (eh != NULL)
1678 1.1 christos {
1679 1.1 christos if (eh->plt.refcount > 0)
1680 1.1 christos eh->plt.refcount -= 1;
1681 1.1 christos }
1682 1.1 christos break;
1683 1.1 christos
1684 1.1 christos case R_PARISC_PLABEL14R:
1685 1.1 christos case R_PARISC_PLABEL21L:
1686 1.1 christos case R_PARISC_PLABEL32:
1687 1.1 christos if (eh != NULL)
1688 1.1 christos {
1689 1.1 christos if (eh->plt.refcount > 0)
1690 1.1 christos eh->plt.refcount -= 1;
1691 1.1 christos }
1692 1.1 christos else if (local_plt_refcounts != NULL)
1693 1.1 christos {
1694 1.1 christos if (local_plt_refcounts[r_symndx] > 0)
1695 1.1 christos local_plt_refcounts[r_symndx] -= 1;
1696 1.1 christos }
1697 1.1 christos break;
1698 1.1 christos
1699 1.1 christos default:
1700 1.1 christos break;
1701 1.1 christos }
1702 1.1 christos }
1703 1.1 christos
1704 1.1 christos return TRUE;
1705 1.1 christos }
1706 1.1 christos
1707 1.1 christos /* Support for core dump NOTE sections. */
1708 1.1 christos
1709 1.1 christos static bfd_boolean
1710 1.1 christos elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1711 1.1 christos {
1712 1.1 christos int offset;
1713 1.1 christos size_t size;
1714 1.1 christos
1715 1.1 christos switch (note->descsz)
1716 1.1 christos {
1717 1.1 christos default:
1718 1.1 christos return FALSE;
1719 1.1 christos
1720 1.1 christos case 396: /* Linux/hppa */
1721 1.1 christos /* pr_cursig */
1722 1.1.1.2 christos elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
1723 1.1 christos
1724 1.1 christos /* pr_pid */
1725 1.1.1.2 christos elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 24);
1726 1.1 christos
1727 1.1 christos /* pr_reg */
1728 1.1 christos offset = 72;
1729 1.1 christos size = 320;
1730 1.1 christos
1731 1.1 christos break;
1732 1.1 christos }
1733 1.1 christos
1734 1.1 christos /* Make a ".reg/999" section. */
1735 1.1 christos return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1736 1.1 christos size, note->descpos + offset);
1737 1.1 christos }
1738 1.1 christos
1739 1.1 christos static bfd_boolean
1740 1.1 christos elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1741 1.1 christos {
1742 1.1 christos switch (note->descsz)
1743 1.1 christos {
1744 1.1 christos default:
1745 1.1 christos return FALSE;
1746 1.1 christos
1747 1.1 christos case 124: /* Linux/hppa elf_prpsinfo. */
1748 1.1.1.2 christos elf_tdata (abfd)->core->program
1749 1.1 christos = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
1750 1.1.1.2 christos elf_tdata (abfd)->core->command
1751 1.1 christos = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1752 1.1 christos }
1753 1.1 christos
1754 1.1 christos /* Note that for some reason, a spurious space is tacked
1755 1.1 christos onto the end of the args in some (at least one anyway)
1756 1.1 christos implementations, so strip it off if it exists. */
1757 1.1 christos {
1758 1.1.1.2 christos char *command = elf_tdata (abfd)->core->command;
1759 1.1 christos int n = strlen (command);
1760 1.1 christos
1761 1.1 christos if (0 < n && command[n - 1] == ' ')
1762 1.1 christos command[n - 1] = '\0';
1763 1.1 christos }
1764 1.1 christos
1765 1.1 christos return TRUE;
1766 1.1 christos }
1767 1.1 christos
1768 1.1 christos /* Our own version of hide_symbol, so that we can keep plt entries for
1769 1.1 christos plabels. */
1770 1.1 christos
1771 1.1 christos static void
1772 1.1 christos elf32_hppa_hide_symbol (struct bfd_link_info *info,
1773 1.1 christos struct elf_link_hash_entry *eh,
1774 1.1 christos bfd_boolean force_local)
1775 1.1 christos {
1776 1.1 christos if (force_local)
1777 1.1 christos {
1778 1.1 christos eh->forced_local = 1;
1779 1.1 christos if (eh->dynindx != -1)
1780 1.1 christos {
1781 1.1 christos eh->dynindx = -1;
1782 1.1 christos _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1783 1.1 christos eh->dynstr_index);
1784 1.1 christos }
1785 1.1.1.3 christos
1786 1.1.1.3 christos /* PR 16082: Remove version information from hidden symbol. */
1787 1.1.1.3 christos eh->verinfo.verdef = NULL;
1788 1.1.1.3 christos eh->verinfo.vertree = NULL;
1789 1.1 christos }
1790 1.1 christos
1791 1.1.1.2 christos /* STT_GNU_IFUNC symbol must go through PLT. */
1792 1.1.1.2 christos if (! hppa_elf_hash_entry (eh)->plabel
1793 1.1.1.2 christos && eh->type != STT_GNU_IFUNC)
1794 1.1 christos {
1795 1.1 christos eh->needs_plt = 0;
1796 1.1.1.2 christos eh->plt = elf_hash_table (info)->init_plt_offset;
1797 1.1 christos }
1798 1.1 christos }
1799 1.1 christos
1800 1.1 christos /* Adjust a symbol defined by a dynamic object and referenced by a
1801 1.1 christos regular object. The current definition is in some section of the
1802 1.1 christos dynamic object, but we're not including those sections. We have to
1803 1.1 christos change the definition to something the rest of the link can
1804 1.1 christos understand. */
1805 1.1 christos
1806 1.1 christos static bfd_boolean
1807 1.1 christos elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
1808 1.1 christos struct elf_link_hash_entry *eh)
1809 1.1 christos {
1810 1.1 christos struct elf32_hppa_link_hash_table *htab;
1811 1.1 christos asection *sec;
1812 1.1 christos
1813 1.1 christos /* If this is a function, put it in the procedure linkage table. We
1814 1.1 christos will fill in the contents of the procedure linkage table later. */
1815 1.1 christos if (eh->type == STT_FUNC
1816 1.1 christos || eh->needs_plt)
1817 1.1 christos {
1818 1.1.1.2 christos /* If the symbol is used by a plabel, we must allocate a PLT slot.
1819 1.1.1.2 christos The refcounts are not reliable when it has been hidden since
1820 1.1.1.2 christos hide_symbol can be called before the plabel flag is set. */
1821 1.1.1.2 christos if (hppa_elf_hash_entry (eh)->plabel
1822 1.1.1.2 christos && eh->plt.refcount <= 0)
1823 1.1.1.2 christos eh->plt.refcount = 1;
1824 1.1.1.2 christos
1825 1.1 christos if (eh->plt.refcount <= 0
1826 1.1 christos || (eh->def_regular
1827 1.1 christos && eh->root.type != bfd_link_hash_defweak
1828 1.1 christos && ! hppa_elf_hash_entry (eh)->plabel
1829 1.1.1.5 christos && (!bfd_link_pic (info) || SYMBOLIC_BIND (info, eh))))
1830 1.1 christos {
1831 1.1 christos /* The .plt entry is not needed when:
1832 1.1 christos a) Garbage collection has removed all references to the
1833 1.1 christos symbol, or
1834 1.1 christos b) We know for certain the symbol is defined in this
1835 1.1 christos object, and it's not a weak definition, nor is the symbol
1836 1.1 christos used by a plabel relocation. Either this object is the
1837 1.1 christos application or we are doing a shared symbolic link. */
1838 1.1 christos
1839 1.1 christos eh->plt.offset = (bfd_vma) -1;
1840 1.1 christos eh->needs_plt = 0;
1841 1.1 christos }
1842 1.1 christos
1843 1.1 christos return TRUE;
1844 1.1 christos }
1845 1.1 christos else
1846 1.1 christos eh->plt.offset = (bfd_vma) -1;
1847 1.1 christos
1848 1.1 christos /* If this is a weak symbol, and there is a real definition, the
1849 1.1 christos processor independent code will have arranged for us to see the
1850 1.1 christos real definition first, and we can just use the same value. */
1851 1.1 christos if (eh->u.weakdef != NULL)
1852 1.1 christos {
1853 1.1 christos if (eh->u.weakdef->root.type != bfd_link_hash_defined
1854 1.1 christos && eh->u.weakdef->root.type != bfd_link_hash_defweak)
1855 1.1 christos abort ();
1856 1.1 christos eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1857 1.1 christos eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
1858 1.1 christos if (ELIMINATE_COPY_RELOCS)
1859 1.1 christos eh->non_got_ref = eh->u.weakdef->non_got_ref;
1860 1.1 christos return TRUE;
1861 1.1 christos }
1862 1.1 christos
1863 1.1 christos /* This is a reference to a symbol defined by a dynamic object which
1864 1.1 christos is not a function. */
1865 1.1 christos
1866 1.1 christos /* If we are creating a shared library, we must presume that the
1867 1.1 christos only references to the symbol are via the global offset table.
1868 1.1 christos For such cases we need not do anything here; the relocations will
1869 1.1 christos be handled correctly by relocate_section. */
1870 1.1.1.5 christos if (bfd_link_pic (info))
1871 1.1 christos return TRUE;
1872 1.1 christos
1873 1.1 christos /* If there are no references to this symbol that do not use the
1874 1.1 christos GOT, we don't need to generate a copy reloc. */
1875 1.1 christos if (!eh->non_got_ref)
1876 1.1 christos return TRUE;
1877 1.1 christos
1878 1.1 christos if (ELIMINATE_COPY_RELOCS)
1879 1.1 christos {
1880 1.1 christos struct elf32_hppa_link_hash_entry *hh;
1881 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
1882 1.1 christos
1883 1.1 christos hh = hppa_elf_hash_entry (eh);
1884 1.1 christos for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
1885 1.1 christos {
1886 1.1 christos sec = hdh_p->sec->output_section;
1887 1.1 christos if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
1888 1.1 christos break;
1889 1.1 christos }
1890 1.1 christos
1891 1.1 christos /* If we didn't find any dynamic relocs in read-only sections, then
1892 1.1 christos we'll be keeping the dynamic relocs and avoiding the copy reloc. */
1893 1.1 christos if (hdh_p == NULL)
1894 1.1 christos {
1895 1.1 christos eh->non_got_ref = 0;
1896 1.1 christos return TRUE;
1897 1.1 christos }
1898 1.1 christos }
1899 1.1 christos
1900 1.1 christos /* We must allocate the symbol in our .dynbss section, which will
1901 1.1 christos become part of the .bss section of the executable. There will be
1902 1.1 christos an entry for this symbol in the .dynsym section. The dynamic
1903 1.1 christos object will contain position independent code, so all references
1904 1.1 christos from the dynamic object to this symbol will go through the global
1905 1.1 christos offset table. The dynamic linker will use the .dynsym entry to
1906 1.1 christos determine the address it must put in the global offset table, so
1907 1.1 christos both the dynamic object and the regular object will refer to the
1908 1.1 christos same memory location for the variable. */
1909 1.1 christos
1910 1.1 christos htab = hppa_link_hash_table (info);
1911 1.1 christos if (htab == NULL)
1912 1.1 christos return FALSE;
1913 1.1 christos
1914 1.1 christos /* We must generate a COPY reloc to tell the dynamic linker to
1915 1.1 christos copy the initial value out of the dynamic object and into the
1916 1.1 christos runtime process image. */
1917 1.1.1.2 christos if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0 && eh->size != 0)
1918 1.1 christos {
1919 1.1 christos htab->srelbss->size += sizeof (Elf32_External_Rela);
1920 1.1 christos eh->needs_copy = 1;
1921 1.1 christos }
1922 1.1 christos
1923 1.1 christos sec = htab->sdynbss;
1924 1.1 christos
1925 1.1.1.4 christos return _bfd_elf_adjust_dynamic_copy (info, eh, sec);
1926 1.1 christos }
1927 1.1 christos
1928 1.1 christos /* Allocate space in the .plt for entries that won't have relocations.
1929 1.1 christos ie. plabel entries. */
1930 1.1 christos
1931 1.1 christos static bfd_boolean
1932 1.1 christos allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
1933 1.1 christos {
1934 1.1 christos struct bfd_link_info *info;
1935 1.1 christos struct elf32_hppa_link_hash_table *htab;
1936 1.1 christos struct elf32_hppa_link_hash_entry *hh;
1937 1.1 christos asection *sec;
1938 1.1 christos
1939 1.1 christos if (eh->root.type == bfd_link_hash_indirect)
1940 1.1 christos return TRUE;
1941 1.1 christos
1942 1.1 christos info = (struct bfd_link_info *) inf;
1943 1.1 christos hh = hppa_elf_hash_entry (eh);
1944 1.1 christos htab = hppa_link_hash_table (info);
1945 1.1 christos if (htab == NULL)
1946 1.1 christos return FALSE;
1947 1.1 christos
1948 1.1 christos if (htab->etab.dynamic_sections_created
1949 1.1 christos && eh->plt.refcount > 0)
1950 1.1 christos {
1951 1.1 christos /* Make sure this symbol is output as a dynamic symbol.
1952 1.1 christos Undefined weak syms won't yet be marked as dynamic. */
1953 1.1 christos if (eh->dynindx == -1
1954 1.1 christos && !eh->forced_local
1955 1.1 christos && eh->type != STT_PARISC_MILLI)
1956 1.1 christos {
1957 1.1 christos if (! bfd_elf_link_record_dynamic_symbol (info, eh))
1958 1.1 christos return FALSE;
1959 1.1 christos }
1960 1.1 christos
1961 1.1.1.5 christos if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), eh))
1962 1.1 christos {
1963 1.1 christos /* Allocate these later. From this point on, h->plabel
1964 1.1 christos means that the plt entry is only used by a plabel.
1965 1.1 christos We'll be using a normal plt entry for this symbol, so
1966 1.1 christos clear the plabel indicator. */
1967 1.1.1.2 christos
1968 1.1 christos hh->plabel = 0;
1969 1.1 christos }
1970 1.1 christos else if (hh->plabel)
1971 1.1 christos {
1972 1.1 christos /* Make an entry in the .plt section for plabel references
1973 1.1 christos that won't have a .plt entry for other reasons. */
1974 1.1 christos sec = htab->splt;
1975 1.1 christos eh->plt.offset = sec->size;
1976 1.1 christos sec->size += PLT_ENTRY_SIZE;
1977 1.1 christos }
1978 1.1 christos else
1979 1.1 christos {
1980 1.1 christos /* No .plt entry needed. */
1981 1.1 christos eh->plt.offset = (bfd_vma) -1;
1982 1.1 christos eh->needs_plt = 0;
1983 1.1 christos }
1984 1.1 christos }
1985 1.1 christos else
1986 1.1 christos {
1987 1.1 christos eh->plt.offset = (bfd_vma) -1;
1988 1.1 christos eh->needs_plt = 0;
1989 1.1 christos }
1990 1.1 christos
1991 1.1 christos return TRUE;
1992 1.1 christos }
1993 1.1 christos
1994 1.1 christos /* Allocate space in .plt, .got and associated reloc sections for
1995 1.1 christos global syms. */
1996 1.1 christos
1997 1.1 christos static bfd_boolean
1998 1.1 christos allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
1999 1.1 christos {
2000 1.1 christos struct bfd_link_info *info;
2001 1.1 christos struct elf32_hppa_link_hash_table *htab;
2002 1.1 christos asection *sec;
2003 1.1 christos struct elf32_hppa_link_hash_entry *hh;
2004 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
2005 1.1 christos
2006 1.1 christos if (eh->root.type == bfd_link_hash_indirect)
2007 1.1 christos return TRUE;
2008 1.1 christos
2009 1.1 christos info = inf;
2010 1.1 christos htab = hppa_link_hash_table (info);
2011 1.1 christos if (htab == NULL)
2012 1.1 christos return FALSE;
2013 1.1 christos
2014 1.1 christos hh = hppa_elf_hash_entry (eh);
2015 1.1.1.2 christos
2016 1.1 christos if (htab->etab.dynamic_sections_created
2017 1.1 christos && eh->plt.offset != (bfd_vma) -1
2018 1.1 christos && !hh->plabel
2019 1.1 christos && eh->plt.refcount > 0)
2020 1.1 christos {
2021 1.1 christos /* Make an entry in the .plt section. */
2022 1.1 christos sec = htab->splt;
2023 1.1 christos eh->plt.offset = sec->size;
2024 1.1 christos sec->size += PLT_ENTRY_SIZE;
2025 1.1 christos
2026 1.1 christos /* We also need to make an entry in the .rela.plt section. */
2027 1.1 christos htab->srelplt->size += sizeof (Elf32_External_Rela);
2028 1.1 christos htab->need_plt_stub = 1;
2029 1.1 christos }
2030 1.1 christos
2031 1.1 christos if (eh->got.refcount > 0)
2032 1.1 christos {
2033 1.1 christos /* Make sure this symbol is output as a dynamic symbol.
2034 1.1 christos Undefined weak syms won't yet be marked as dynamic. */
2035 1.1 christos if (eh->dynindx == -1
2036 1.1 christos && !eh->forced_local
2037 1.1 christos && eh->type != STT_PARISC_MILLI)
2038 1.1 christos {
2039 1.1 christos if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2040 1.1 christos return FALSE;
2041 1.1 christos }
2042 1.1 christos
2043 1.1 christos sec = htab->sgot;
2044 1.1 christos eh->got.offset = sec->size;
2045 1.1 christos sec->size += GOT_ENTRY_SIZE;
2046 1.1 christos /* R_PARISC_TLS_GD* needs two GOT entries */
2047 1.1 christos if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2048 1.1 christos sec->size += GOT_ENTRY_SIZE * 2;
2049 1.1 christos else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2050 1.1 christos sec->size += GOT_ENTRY_SIZE;
2051 1.1 christos if (htab->etab.dynamic_sections_created
2052 1.1.1.5 christos && (bfd_link_pic (info)
2053 1.1 christos || (eh->dynindx != -1
2054 1.1 christos && !eh->forced_local)))
2055 1.1 christos {
2056 1.1 christos htab->srelgot->size += sizeof (Elf32_External_Rela);
2057 1.1 christos if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2058 1.1 christos htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2059 1.1 christos else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2060 1.1 christos htab->srelgot->size += sizeof (Elf32_External_Rela);
2061 1.1 christos }
2062 1.1 christos }
2063 1.1 christos else
2064 1.1 christos eh->got.offset = (bfd_vma) -1;
2065 1.1 christos
2066 1.1 christos if (hh->dyn_relocs == NULL)
2067 1.1 christos return TRUE;
2068 1.1 christos
2069 1.1 christos /* If this is a -Bsymbolic shared link, then we need to discard all
2070 1.1 christos space allocated for dynamic pc-relative relocs against symbols
2071 1.1 christos defined in a regular object. For the normal shared case, discard
2072 1.1 christos space for relocs that have become local due to symbol visibility
2073 1.1 christos changes. */
2074 1.1.1.5 christos if (bfd_link_pic (info))
2075 1.1 christos {
2076 1.1 christos #if RELATIVE_DYNRELOCS
2077 1.1 christos if (SYMBOL_CALLS_LOCAL (info, eh))
2078 1.1 christos {
2079 1.1 christos struct elf32_hppa_dyn_reloc_entry **hdh_pp;
2080 1.1 christos
2081 1.1 christos for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
2082 1.1 christos {
2083 1.1 christos hdh_p->count -= hdh_p->relative_count;
2084 1.1 christos hdh_p->relative_count = 0;
2085 1.1 christos if (hdh_p->count == 0)
2086 1.1 christos *hdh_pp = hdh_p->hdh_next;
2087 1.1 christos else
2088 1.1 christos hdh_pp = &hdh_p->hdh_next;
2089 1.1 christos }
2090 1.1 christos }
2091 1.1 christos #endif
2092 1.1 christos
2093 1.1 christos /* Also discard relocs on undefined weak syms with non-default
2094 1.1 christos visibility. */
2095 1.1 christos if (hh->dyn_relocs != NULL
2096 1.1 christos && eh->root.type == bfd_link_hash_undefweak)
2097 1.1 christos {
2098 1.1 christos if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2099 1.1 christos hh->dyn_relocs = NULL;
2100 1.1 christos
2101 1.1 christos /* Make sure undefined weak symbols are output as a dynamic
2102 1.1 christos symbol in PIEs. */
2103 1.1 christos else if (eh->dynindx == -1
2104 1.1 christos && !eh->forced_local)
2105 1.1 christos {
2106 1.1 christos if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2107 1.1 christos return FALSE;
2108 1.1 christos }
2109 1.1 christos }
2110 1.1 christos }
2111 1.1 christos else
2112 1.1 christos {
2113 1.1 christos /* For the non-shared case, discard space for relocs against
2114 1.1 christos symbols which turn out to need copy relocs or are not
2115 1.1 christos dynamic. */
2116 1.1.1.2 christos
2117 1.1 christos if (!eh->non_got_ref
2118 1.1 christos && ((ELIMINATE_COPY_RELOCS
2119 1.1 christos && eh->def_dynamic
2120 1.1 christos && !eh->def_regular)
2121 1.1 christos || (htab->etab.dynamic_sections_created
2122 1.1 christos && (eh->root.type == bfd_link_hash_undefweak
2123 1.1 christos || eh->root.type == bfd_link_hash_undefined))))
2124 1.1 christos {
2125 1.1 christos /* Make sure this symbol is output as a dynamic symbol.
2126 1.1 christos Undefined weak syms won't yet be marked as dynamic. */
2127 1.1 christos if (eh->dynindx == -1
2128 1.1 christos && !eh->forced_local
2129 1.1 christos && eh->type != STT_PARISC_MILLI)
2130 1.1 christos {
2131 1.1 christos if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2132 1.1 christos return FALSE;
2133 1.1 christos }
2134 1.1 christos
2135 1.1 christos /* If that succeeded, we know we'll be keeping all the
2136 1.1 christos relocs. */
2137 1.1 christos if (eh->dynindx != -1)
2138 1.1 christos goto keep;
2139 1.1 christos }
2140 1.1 christos
2141 1.1 christos hh->dyn_relocs = NULL;
2142 1.1 christos return TRUE;
2143 1.1 christos
2144 1.1 christos keep: ;
2145 1.1 christos }
2146 1.1 christos
2147 1.1 christos /* Finally, allocate space. */
2148 1.1 christos for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
2149 1.1 christos {
2150 1.1 christos asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2151 1.1 christos sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
2152 1.1 christos }
2153 1.1 christos
2154 1.1 christos return TRUE;
2155 1.1 christos }
2156 1.1 christos
2157 1.1 christos /* This function is called via elf_link_hash_traverse to force
2158 1.1 christos millicode symbols local so they do not end up as globals in the
2159 1.1 christos dynamic symbol table. We ought to be able to do this in
2160 1.1 christos adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2161 1.1 christos for all dynamic symbols. Arguably, this is a bug in
2162 1.1 christos elf_adjust_dynamic_symbol. */
2163 1.1 christos
2164 1.1 christos static bfd_boolean
2165 1.1 christos clobber_millicode_symbols (struct elf_link_hash_entry *eh,
2166 1.1 christos struct bfd_link_info *info)
2167 1.1 christos {
2168 1.1 christos if (eh->type == STT_PARISC_MILLI
2169 1.1 christos && !eh->forced_local)
2170 1.1 christos {
2171 1.1 christos elf32_hppa_hide_symbol (info, eh, TRUE);
2172 1.1 christos }
2173 1.1 christos return TRUE;
2174 1.1 christos }
2175 1.1 christos
2176 1.1 christos /* Find any dynamic relocs that apply to read-only sections. */
2177 1.1 christos
2178 1.1 christos static bfd_boolean
2179 1.1 christos readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
2180 1.1 christos {
2181 1.1 christos struct elf32_hppa_link_hash_entry *hh;
2182 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
2183 1.1 christos
2184 1.1 christos hh = hppa_elf_hash_entry (eh);
2185 1.1 christos for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
2186 1.1 christos {
2187 1.1 christos asection *sec = hdh_p->sec->output_section;
2188 1.1 christos
2189 1.1 christos if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
2190 1.1 christos {
2191 1.1 christos struct bfd_link_info *info = inf;
2192 1.1 christos
2193 1.1 christos info->flags |= DF_TEXTREL;
2194 1.1 christos
2195 1.1 christos /* Not an error, just cut short the traversal. */
2196 1.1 christos return FALSE;
2197 1.1 christos }
2198 1.1 christos }
2199 1.1 christos return TRUE;
2200 1.1 christos }
2201 1.1 christos
2202 1.1 christos /* Set the sizes of the dynamic sections. */
2203 1.1 christos
2204 1.1 christos static bfd_boolean
2205 1.1 christos elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2206 1.1 christos struct bfd_link_info *info)
2207 1.1 christos {
2208 1.1 christos struct elf32_hppa_link_hash_table *htab;
2209 1.1 christos bfd *dynobj;
2210 1.1 christos bfd *ibfd;
2211 1.1 christos asection *sec;
2212 1.1 christos bfd_boolean relocs;
2213 1.1 christos
2214 1.1 christos htab = hppa_link_hash_table (info);
2215 1.1 christos if (htab == NULL)
2216 1.1 christos return FALSE;
2217 1.1 christos
2218 1.1 christos dynobj = htab->etab.dynobj;
2219 1.1 christos if (dynobj == NULL)
2220 1.1 christos abort ();
2221 1.1 christos
2222 1.1 christos if (htab->etab.dynamic_sections_created)
2223 1.1 christos {
2224 1.1 christos /* Set the contents of the .interp section to the interpreter. */
2225 1.1.1.5 christos if (bfd_link_executable (info) && !info->nointerp)
2226 1.1 christos {
2227 1.1.1.2 christos sec = bfd_get_linker_section (dynobj, ".interp");
2228 1.1 christos if (sec == NULL)
2229 1.1 christos abort ();
2230 1.1 christos sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2231 1.1 christos sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
2232 1.1 christos }
2233 1.1 christos
2234 1.1 christos /* Force millicode symbols local. */
2235 1.1 christos elf_link_hash_traverse (&htab->etab,
2236 1.1 christos clobber_millicode_symbols,
2237 1.1 christos info);
2238 1.1 christos }
2239 1.1 christos
2240 1.1 christos /* Set up .got and .plt offsets for local syms, and space for local
2241 1.1 christos dynamic relocs. */
2242 1.1.1.4 christos for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next)
2243 1.1 christos {
2244 1.1 christos bfd_signed_vma *local_got;
2245 1.1 christos bfd_signed_vma *end_local_got;
2246 1.1 christos bfd_signed_vma *local_plt;
2247 1.1 christos bfd_signed_vma *end_local_plt;
2248 1.1 christos bfd_size_type locsymcount;
2249 1.1 christos Elf_Internal_Shdr *symtab_hdr;
2250 1.1 christos asection *srel;
2251 1.1 christos char *local_tls_type;
2252 1.1 christos
2253 1.1 christos if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
2254 1.1 christos continue;
2255 1.1 christos
2256 1.1 christos for (sec = ibfd->sections; sec != NULL; sec = sec->next)
2257 1.1 christos {
2258 1.1 christos struct elf32_hppa_dyn_reloc_entry *hdh_p;
2259 1.1 christos
2260 1.1 christos for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2261 1.1 christos elf_section_data (sec)->local_dynrel);
2262 1.1 christos hdh_p != NULL;
2263 1.1 christos hdh_p = hdh_p->hdh_next)
2264 1.1 christos {
2265 1.1 christos if (!bfd_is_abs_section (hdh_p->sec)
2266 1.1 christos && bfd_is_abs_section (hdh_p->sec->output_section))
2267 1.1 christos {
2268 1.1 christos /* Input section has been discarded, either because
2269 1.1 christos it is a copy of a linkonce section or due to
2270 1.1 christos linker script /DISCARD/, so we'll be discarding
2271 1.1 christos the relocs too. */
2272 1.1 christos }
2273 1.1 christos else if (hdh_p->count != 0)
2274 1.1 christos {
2275 1.1 christos srel = elf_section_data (hdh_p->sec)->sreloc;
2276 1.1 christos srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2277 1.1 christos if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
2278 1.1 christos info->flags |= DF_TEXTREL;
2279 1.1 christos }
2280 1.1 christos }
2281 1.1 christos }
2282 1.1 christos
2283 1.1 christos local_got = elf_local_got_refcounts (ibfd);
2284 1.1 christos if (!local_got)
2285 1.1 christos continue;
2286 1.1 christos
2287 1.1 christos symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
2288 1.1 christos locsymcount = symtab_hdr->sh_info;
2289 1.1 christos end_local_got = local_got + locsymcount;
2290 1.1 christos local_tls_type = hppa_elf_local_got_tls_type (ibfd);
2291 1.1 christos sec = htab->sgot;
2292 1.1 christos srel = htab->srelgot;
2293 1.1 christos for (; local_got < end_local_got; ++local_got)
2294 1.1 christos {
2295 1.1 christos if (*local_got > 0)
2296 1.1 christos {
2297 1.1 christos *local_got = sec->size;
2298 1.1 christos sec->size += GOT_ENTRY_SIZE;
2299 1.1 christos if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2300 1.1 christos sec->size += 2 * GOT_ENTRY_SIZE;
2301 1.1 christos else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2302 1.1 christos sec->size += GOT_ENTRY_SIZE;
2303 1.1.1.5 christos if (bfd_link_pic (info))
2304 1.1 christos {
2305 1.1 christos srel->size += sizeof (Elf32_External_Rela);
2306 1.1 christos if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2307 1.1 christos srel->size += 2 * sizeof (Elf32_External_Rela);
2308 1.1 christos else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2309 1.1 christos srel->size += sizeof (Elf32_External_Rela);
2310 1.1 christos }
2311 1.1 christos }
2312 1.1 christos else
2313 1.1 christos *local_got = (bfd_vma) -1;
2314 1.1 christos
2315 1.1 christos ++local_tls_type;
2316 1.1 christos }
2317 1.1 christos
2318 1.1 christos local_plt = end_local_got;
2319 1.1 christos end_local_plt = local_plt + locsymcount;
2320 1.1 christos if (! htab->etab.dynamic_sections_created)
2321 1.1 christos {
2322 1.1 christos /* Won't be used, but be safe. */
2323 1.1 christos for (; local_plt < end_local_plt; ++local_plt)
2324 1.1 christos *local_plt = (bfd_vma) -1;
2325 1.1 christos }
2326 1.1 christos else
2327 1.1 christos {
2328 1.1 christos sec = htab->splt;
2329 1.1 christos srel = htab->srelplt;
2330 1.1 christos for (; local_plt < end_local_plt; ++local_plt)
2331 1.1 christos {
2332 1.1 christos if (*local_plt > 0)
2333 1.1 christos {
2334 1.1 christos *local_plt = sec->size;
2335 1.1 christos sec->size += PLT_ENTRY_SIZE;
2336 1.1.1.5 christos if (bfd_link_pic (info))
2337 1.1 christos srel->size += sizeof (Elf32_External_Rela);
2338 1.1 christos }
2339 1.1 christos else
2340 1.1 christos *local_plt = (bfd_vma) -1;
2341 1.1 christos }
2342 1.1 christos }
2343 1.1 christos }
2344 1.1.1.2 christos
2345 1.1 christos if (htab->tls_ldm_got.refcount > 0)
2346 1.1 christos {
2347 1.1.1.2 christos /* Allocate 2 got entries and 1 dynamic reloc for
2348 1.1 christos R_PARISC_TLS_DTPMOD32 relocs. */
2349 1.1 christos htab->tls_ldm_got.offset = htab->sgot->size;
2350 1.1 christos htab->sgot->size += (GOT_ENTRY_SIZE * 2);
2351 1.1 christos htab->srelgot->size += sizeof (Elf32_External_Rela);
2352 1.1 christos }
2353 1.1 christos else
2354 1.1 christos htab->tls_ldm_got.offset = -1;
2355 1.1 christos
2356 1.1 christos /* Do all the .plt entries without relocs first. The dynamic linker
2357 1.1 christos uses the last .plt reloc to find the end of the .plt (and hence
2358 1.1 christos the start of the .got) for lazy linking. */
2359 1.1 christos elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
2360 1.1 christos
2361 1.1 christos /* Allocate global sym .plt and .got entries, and space for global
2362 1.1 christos sym dynamic relocs. */
2363 1.1 christos elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
2364 1.1 christos
2365 1.1 christos /* The check_relocs and adjust_dynamic_symbol entry points have
2366 1.1 christos determined the sizes of the various dynamic sections. Allocate
2367 1.1 christos memory for them. */
2368 1.1 christos relocs = FALSE;
2369 1.1 christos for (sec = dynobj->sections; sec != NULL; sec = sec->next)
2370 1.1 christos {
2371 1.1 christos if ((sec->flags & SEC_LINKER_CREATED) == 0)
2372 1.1 christos continue;
2373 1.1 christos
2374 1.1 christos if (sec == htab->splt)
2375 1.1 christos {
2376 1.1 christos if (htab->need_plt_stub)
2377 1.1 christos {
2378 1.1 christos /* Make space for the plt stub at the end of the .plt
2379 1.1 christos section. We want this stub right at the end, up
2380 1.1 christos against the .got section. */
2381 1.1 christos int gotalign = bfd_section_alignment (dynobj, htab->sgot);
2382 1.1 christos int pltalign = bfd_section_alignment (dynobj, sec);
2383 1.1 christos bfd_size_type mask;
2384 1.1 christos
2385 1.1 christos if (gotalign > pltalign)
2386 1.1.1.3 christos (void) bfd_set_section_alignment (dynobj, sec, gotalign);
2387 1.1 christos mask = ((bfd_size_type) 1 << gotalign) - 1;
2388 1.1 christos sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
2389 1.1 christos }
2390 1.1 christos }
2391 1.1 christos else if (sec == htab->sgot
2392 1.1 christos || sec == htab->sdynbss)
2393 1.1 christos ;
2394 1.1 christos else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
2395 1.1 christos {
2396 1.1 christos if (sec->size != 0)
2397 1.1 christos {
2398 1.1 christos /* Remember whether there are any reloc sections other
2399 1.1 christos than .rela.plt. */
2400 1.1 christos if (sec != htab->srelplt)
2401 1.1 christos relocs = TRUE;
2402 1.1 christos
2403 1.1 christos /* We use the reloc_count field as a counter if we need
2404 1.1 christos to copy relocs into the output file. */
2405 1.1 christos sec->reloc_count = 0;
2406 1.1 christos }
2407 1.1 christos }
2408 1.1 christos else
2409 1.1 christos {
2410 1.1 christos /* It's not one of our sections, so don't allocate space. */
2411 1.1 christos continue;
2412 1.1 christos }
2413 1.1 christos
2414 1.1 christos if (sec->size == 0)
2415 1.1 christos {
2416 1.1 christos /* If we don't need this section, strip it from the
2417 1.1 christos output file. This is mostly to handle .rela.bss and
2418 1.1 christos .rela.plt. We must create both sections in
2419 1.1 christos create_dynamic_sections, because they must be created
2420 1.1 christos before the linker maps input sections to output
2421 1.1 christos sections. The linker does that before
2422 1.1 christos adjust_dynamic_symbol is called, and it is that
2423 1.1 christos function which decides whether anything needs to go
2424 1.1 christos into these sections. */
2425 1.1 christos sec->flags |= SEC_EXCLUDE;
2426 1.1 christos continue;
2427 1.1 christos }
2428 1.1 christos
2429 1.1 christos if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2430 1.1 christos continue;
2431 1.1 christos
2432 1.1 christos /* Allocate memory for the section contents. Zero it, because
2433 1.1 christos we may not fill in all the reloc sections. */
2434 1.1 christos sec->contents = bfd_zalloc (dynobj, sec->size);
2435 1.1 christos if (sec->contents == NULL)
2436 1.1 christos return FALSE;
2437 1.1 christos }
2438 1.1 christos
2439 1.1 christos if (htab->etab.dynamic_sections_created)
2440 1.1 christos {
2441 1.1 christos /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2442 1.1 christos actually has nothing to do with the PLT, it is how we
2443 1.1 christos communicate the LTP value of a load module to the dynamic
2444 1.1 christos linker. */
2445 1.1 christos #define add_dynamic_entry(TAG, VAL) \
2446 1.1 christos _bfd_elf_add_dynamic_entry (info, TAG, VAL)
2447 1.1 christos
2448 1.1 christos if (!add_dynamic_entry (DT_PLTGOT, 0))
2449 1.1 christos return FALSE;
2450 1.1 christos
2451 1.1 christos /* Add some entries to the .dynamic section. We fill in the
2452 1.1 christos values later, in elf32_hppa_finish_dynamic_sections, but we
2453 1.1 christos must add the entries now so that we get the correct size for
2454 1.1 christos the .dynamic section. The DT_DEBUG entry is filled in by the
2455 1.1 christos dynamic linker and used by the debugger. */
2456 1.1.1.5 christos if (bfd_link_executable (info))
2457 1.1 christos {
2458 1.1 christos if (!add_dynamic_entry (DT_DEBUG, 0))
2459 1.1 christos return FALSE;
2460 1.1 christos }
2461 1.1 christos
2462 1.1 christos if (htab->srelplt->size != 0)
2463 1.1 christos {
2464 1.1 christos if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2465 1.1 christos || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2466 1.1 christos || !add_dynamic_entry (DT_JMPREL, 0))
2467 1.1 christos return FALSE;
2468 1.1 christos }
2469 1.1 christos
2470 1.1 christos if (relocs)
2471 1.1 christos {
2472 1.1 christos if (!add_dynamic_entry (DT_RELA, 0)
2473 1.1 christos || !add_dynamic_entry (DT_RELASZ, 0)
2474 1.1 christos || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
2475 1.1 christos return FALSE;
2476 1.1 christos
2477 1.1 christos /* If any dynamic relocs apply to a read-only section,
2478 1.1 christos then we need a DT_TEXTREL entry. */
2479 1.1 christos if ((info->flags & DF_TEXTREL) == 0)
2480 1.1 christos elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
2481 1.1 christos
2482 1.1 christos if ((info->flags & DF_TEXTREL) != 0)
2483 1.1 christos {
2484 1.1 christos if (!add_dynamic_entry (DT_TEXTREL, 0))
2485 1.1 christos return FALSE;
2486 1.1 christos }
2487 1.1 christos }
2488 1.1 christos }
2489 1.1 christos #undef add_dynamic_entry
2490 1.1 christos
2491 1.1 christos return TRUE;
2492 1.1 christos }
2493 1.1 christos
2494 1.1 christos /* External entry points for sizing and building linker stubs. */
2495 1.1 christos
2496 1.1 christos /* Set up various things so that we can make a list of input sections
2497 1.1 christos for each output section included in the link. Returns -1 on error,
2498 1.1 christos 0 when no stubs will be needed, and 1 on success. */
2499 1.1 christos
2500 1.1 christos int
2501 1.1 christos elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
2502 1.1 christos {
2503 1.1 christos bfd *input_bfd;
2504 1.1 christos unsigned int bfd_count;
2505 1.1.1.5 christos unsigned int top_id, top_index;
2506 1.1 christos asection *section;
2507 1.1 christos asection **input_list, **list;
2508 1.1 christos bfd_size_type amt;
2509 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2510 1.1 christos
2511 1.1 christos if (htab == NULL)
2512 1.1 christos return -1;
2513 1.1 christos
2514 1.1 christos /* Count the number of input BFDs and find the top input section id. */
2515 1.1 christos for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
2516 1.1 christos input_bfd != NULL;
2517 1.1.1.4 christos input_bfd = input_bfd->link.next)
2518 1.1 christos {
2519 1.1 christos bfd_count += 1;
2520 1.1 christos for (section = input_bfd->sections;
2521 1.1 christos section != NULL;
2522 1.1 christos section = section->next)
2523 1.1 christos {
2524 1.1 christos if (top_id < section->id)
2525 1.1 christos top_id = section->id;
2526 1.1 christos }
2527 1.1 christos }
2528 1.1 christos htab->bfd_count = bfd_count;
2529 1.1 christos
2530 1.1 christos amt = sizeof (struct map_stub) * (top_id + 1);
2531 1.1 christos htab->stub_group = bfd_zmalloc (amt);
2532 1.1 christos if (htab->stub_group == NULL)
2533 1.1 christos return -1;
2534 1.1 christos
2535 1.1 christos /* We can't use output_bfd->section_count here to find the top output
2536 1.1 christos section index as some sections may have been removed, and
2537 1.1 christos strip_excluded_output_sections doesn't renumber the indices. */
2538 1.1 christos for (section = output_bfd->sections, top_index = 0;
2539 1.1 christos section != NULL;
2540 1.1 christos section = section->next)
2541 1.1 christos {
2542 1.1 christos if (top_index < section->index)
2543 1.1 christos top_index = section->index;
2544 1.1 christos }
2545 1.1 christos
2546 1.1 christos htab->top_index = top_index;
2547 1.1 christos amt = sizeof (asection *) * (top_index + 1);
2548 1.1 christos input_list = bfd_malloc (amt);
2549 1.1 christos htab->input_list = input_list;
2550 1.1 christos if (input_list == NULL)
2551 1.1 christos return -1;
2552 1.1 christos
2553 1.1 christos /* For sections we aren't interested in, mark their entries with a
2554 1.1 christos value we can check later. */
2555 1.1 christos list = input_list + top_index;
2556 1.1 christos do
2557 1.1 christos *list = bfd_abs_section_ptr;
2558 1.1 christos while (list-- != input_list);
2559 1.1 christos
2560 1.1 christos for (section = output_bfd->sections;
2561 1.1 christos section != NULL;
2562 1.1 christos section = section->next)
2563 1.1 christos {
2564 1.1 christos if ((section->flags & SEC_CODE) != 0)
2565 1.1 christos input_list[section->index] = NULL;
2566 1.1 christos }
2567 1.1 christos
2568 1.1 christos return 1;
2569 1.1 christos }
2570 1.1 christos
2571 1.1 christos /* The linker repeatedly calls this function for each input section,
2572 1.1 christos in the order that input sections are linked into output sections.
2573 1.1 christos Build lists of input sections to determine groupings between which
2574 1.1 christos we may insert linker stubs. */
2575 1.1 christos
2576 1.1 christos void
2577 1.1 christos elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
2578 1.1 christos {
2579 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2580 1.1 christos
2581 1.1 christos if (htab == NULL)
2582 1.1 christos return;
2583 1.1 christos
2584 1.1 christos if (isec->output_section->index <= htab->top_index)
2585 1.1 christos {
2586 1.1 christos asection **list = htab->input_list + isec->output_section->index;
2587 1.1 christos if (*list != bfd_abs_section_ptr)
2588 1.1 christos {
2589 1.1 christos /* Steal the link_sec pointer for our list. */
2590 1.1 christos #define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
2591 1.1 christos /* This happens to make the list in reverse order,
2592 1.1 christos which is what we want. */
2593 1.1 christos PREV_SEC (isec) = *list;
2594 1.1 christos *list = isec;
2595 1.1 christos }
2596 1.1 christos }
2597 1.1 christos }
2598 1.1 christos
2599 1.1 christos /* See whether we can group stub sections together. Grouping stub
2600 1.1 christos sections may result in fewer stubs. More importantly, we need to
2601 1.1 christos put all .init* and .fini* stubs at the beginning of the .init or
2602 1.1 christos .fini output sections respectively, because glibc splits the
2603 1.1 christos _init and _fini functions into multiple parts. Putting a stub in
2604 1.1 christos the middle of a function is not a good idea. */
2605 1.1 christos
2606 1.1 christos static void
2607 1.1 christos group_sections (struct elf32_hppa_link_hash_table *htab,
2608 1.1 christos bfd_size_type stub_group_size,
2609 1.1 christos bfd_boolean stubs_always_before_branch)
2610 1.1 christos {
2611 1.1 christos asection **list = htab->input_list + htab->top_index;
2612 1.1 christos do
2613 1.1 christos {
2614 1.1 christos asection *tail = *list;
2615 1.1 christos if (tail == bfd_abs_section_ptr)
2616 1.1 christos continue;
2617 1.1 christos while (tail != NULL)
2618 1.1 christos {
2619 1.1 christos asection *curr;
2620 1.1 christos asection *prev;
2621 1.1 christos bfd_size_type total;
2622 1.1 christos bfd_boolean big_sec;
2623 1.1 christos
2624 1.1 christos curr = tail;
2625 1.1 christos total = tail->size;
2626 1.1 christos big_sec = total >= stub_group_size;
2627 1.1 christos
2628 1.1 christos while ((prev = PREV_SEC (curr)) != NULL
2629 1.1 christos && ((total += curr->output_offset - prev->output_offset)
2630 1.1 christos < stub_group_size))
2631 1.1 christos curr = prev;
2632 1.1 christos
2633 1.1 christos /* OK, the size from the start of CURR to the end is less
2634 1.1 christos than 240000 bytes and thus can be handled by one stub
2635 1.1 christos section. (or the tail section is itself larger than
2636 1.1 christos 240000 bytes, in which case we may be toast.)
2637 1.1 christos We should really be keeping track of the total size of
2638 1.1 christos stubs added here, as stubs contribute to the final output
2639 1.1 christos section size. That's a little tricky, and this way will
2640 1.1 christos only break if stubs added total more than 22144 bytes, or
2641 1.1 christos 2768 long branch stubs. It seems unlikely for more than
2642 1.1 christos 2768 different functions to be called, especially from
2643 1.1 christos code only 240000 bytes long. This limit used to be
2644 1.1 christos 250000, but c++ code tends to generate lots of little
2645 1.1 christos functions, and sometimes violated the assumption. */
2646 1.1 christos do
2647 1.1 christos {
2648 1.1 christos prev = PREV_SEC (tail);
2649 1.1 christos /* Set up this stub group. */
2650 1.1 christos htab->stub_group[tail->id].link_sec = curr;
2651 1.1 christos }
2652 1.1 christos while (tail != curr && (tail = prev) != NULL);
2653 1.1 christos
2654 1.1 christos /* But wait, there's more! Input sections up to 240000
2655 1.1 christos bytes before the stub section can be handled by it too.
2656 1.1 christos Don't do this if we have a really large section after the
2657 1.1 christos stubs, as adding more stubs increases the chance that
2658 1.1 christos branches may not reach into the stub section. */
2659 1.1 christos if (!stubs_always_before_branch && !big_sec)
2660 1.1 christos {
2661 1.1 christos total = 0;
2662 1.1 christos while (prev != NULL
2663 1.1 christos && ((total += tail->output_offset - prev->output_offset)
2664 1.1 christos < stub_group_size))
2665 1.1 christos {
2666 1.1 christos tail = prev;
2667 1.1 christos prev = PREV_SEC (tail);
2668 1.1 christos htab->stub_group[tail->id].link_sec = curr;
2669 1.1 christos }
2670 1.1 christos }
2671 1.1 christos tail = prev;
2672 1.1 christos }
2673 1.1 christos }
2674 1.1 christos while (list-- != htab->input_list);
2675 1.1 christos free (htab->input_list);
2676 1.1 christos #undef PREV_SEC
2677 1.1 christos }
2678 1.1 christos
2679 1.1 christos /* Read in all local syms for all input bfds, and create hash entries
2680 1.1 christos for export stubs if we are building a multi-subspace shared lib.
2681 1.1 christos Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2682 1.1 christos
2683 1.1 christos static int
2684 1.1 christos get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
2685 1.1 christos {
2686 1.1 christos unsigned int bfd_indx;
2687 1.1 christos Elf_Internal_Sym *local_syms, **all_local_syms;
2688 1.1 christos int stub_changed = 0;
2689 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2690 1.1 christos
2691 1.1 christos if (htab == NULL)
2692 1.1 christos return -1;
2693 1.1 christos
2694 1.1 christos /* We want to read in symbol extension records only once. To do this
2695 1.1 christos we need to read in the local symbols in parallel and save them for
2696 1.1 christos later use; so hold pointers to the local symbols in an array. */
2697 1.1 christos bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
2698 1.1 christos all_local_syms = bfd_zmalloc (amt);
2699 1.1 christos htab->all_local_syms = all_local_syms;
2700 1.1 christos if (all_local_syms == NULL)
2701 1.1 christos return -1;
2702 1.1 christos
2703 1.1 christos /* Walk over all the input BFDs, swapping in local symbols.
2704 1.1 christos If we are creating a shared library, create hash entries for the
2705 1.1 christos export stubs. */
2706 1.1 christos for (bfd_indx = 0;
2707 1.1 christos input_bfd != NULL;
2708 1.1.1.4 christos input_bfd = input_bfd->link.next, bfd_indx++)
2709 1.1 christos {
2710 1.1 christos Elf_Internal_Shdr *symtab_hdr;
2711 1.1 christos
2712 1.1 christos /* We'll need the symbol table in a second. */
2713 1.1 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2714 1.1 christos if (symtab_hdr->sh_info == 0)
2715 1.1 christos continue;
2716 1.1 christos
2717 1.1 christos /* We need an array of the local symbols attached to the input bfd. */
2718 1.1 christos local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
2719 1.1 christos if (local_syms == NULL)
2720 1.1 christos {
2721 1.1 christos local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2722 1.1 christos symtab_hdr->sh_info, 0,
2723 1.1 christos NULL, NULL, NULL);
2724 1.1 christos /* Cache them for elf_link_input_bfd. */
2725 1.1 christos symtab_hdr->contents = (unsigned char *) local_syms;
2726 1.1 christos }
2727 1.1 christos if (local_syms == NULL)
2728 1.1 christos return -1;
2729 1.1 christos
2730 1.1 christos all_local_syms[bfd_indx] = local_syms;
2731 1.1 christos
2732 1.1.1.5 christos if (bfd_link_pic (info) && htab->multi_subspace)
2733 1.1 christos {
2734 1.1 christos struct elf_link_hash_entry **eh_syms;
2735 1.1 christos struct elf_link_hash_entry **eh_symend;
2736 1.1 christos unsigned int symcount;
2737 1.1 christos
2738 1.1 christos symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2739 1.1 christos - symtab_hdr->sh_info);
2740 1.1 christos eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2741 1.1 christos eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
2742 1.1 christos
2743 1.1 christos /* Look through the global syms for functions; We need to
2744 1.1 christos build export stubs for all globally visible functions. */
2745 1.1 christos for (; eh_syms < eh_symend; eh_syms++)
2746 1.1 christos {
2747 1.1 christos struct elf32_hppa_link_hash_entry *hh;
2748 1.1 christos
2749 1.1 christos hh = hppa_elf_hash_entry (*eh_syms);
2750 1.1 christos
2751 1.1 christos while (hh->eh.root.type == bfd_link_hash_indirect
2752 1.1 christos || hh->eh.root.type == bfd_link_hash_warning)
2753 1.1 christos hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2754 1.1 christos
2755 1.1 christos /* At this point in the link, undefined syms have been
2756 1.1 christos resolved, so we need to check that the symbol was
2757 1.1 christos defined in this BFD. */
2758 1.1 christos if ((hh->eh.root.type == bfd_link_hash_defined
2759 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak)
2760 1.1 christos && hh->eh.type == STT_FUNC
2761 1.1 christos && hh->eh.root.u.def.section->output_section != NULL
2762 1.1 christos && (hh->eh.root.u.def.section->output_section->owner
2763 1.1 christos == output_bfd)
2764 1.1 christos && hh->eh.root.u.def.section->owner == input_bfd
2765 1.1 christos && hh->eh.def_regular
2766 1.1 christos && !hh->eh.forced_local
2767 1.1 christos && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
2768 1.1 christos {
2769 1.1 christos asection *sec;
2770 1.1 christos const char *stub_name;
2771 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
2772 1.1 christos
2773 1.1 christos sec = hh->eh.root.u.def.section;
2774 1.1 christos stub_name = hh_name (hh);
2775 1.1 christos hsh = hppa_stub_hash_lookup (&htab->bstab,
2776 1.1 christos stub_name,
2777 1.1 christos FALSE, FALSE);
2778 1.1 christos if (hsh == NULL)
2779 1.1 christos {
2780 1.1 christos hsh = hppa_add_stub (stub_name, sec, htab);
2781 1.1 christos if (!hsh)
2782 1.1 christos return -1;
2783 1.1 christos
2784 1.1 christos hsh->target_value = hh->eh.root.u.def.value;
2785 1.1 christos hsh->target_section = hh->eh.root.u.def.section;
2786 1.1 christos hsh->stub_type = hppa_stub_export;
2787 1.1 christos hsh->hh = hh;
2788 1.1 christos stub_changed = 1;
2789 1.1 christos }
2790 1.1 christos else
2791 1.1 christos {
2792 1.1 christos (*_bfd_error_handler) (_("%B: duplicate export stub %s"),
2793 1.1 christos input_bfd,
2794 1.1 christos stub_name);
2795 1.1 christos }
2796 1.1 christos }
2797 1.1 christos }
2798 1.1 christos }
2799 1.1 christos }
2800 1.1 christos
2801 1.1 christos return stub_changed;
2802 1.1 christos }
2803 1.1 christos
2804 1.1 christos /* Determine and set the size of the stub section for a final link.
2805 1.1 christos
2806 1.1 christos The basic idea here is to examine all the relocations looking for
2807 1.1 christos PC-relative calls to a target that is unreachable with a "bl"
2808 1.1 christos instruction. */
2809 1.1 christos
2810 1.1 christos bfd_boolean
2811 1.1 christos elf32_hppa_size_stubs
2812 1.1 christos (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2813 1.1 christos bfd_boolean multi_subspace, bfd_signed_vma group_size,
2814 1.1 christos asection * (*add_stub_section) (const char *, asection *),
2815 1.1 christos void (*layout_sections_again) (void))
2816 1.1 christos {
2817 1.1 christos bfd_size_type stub_group_size;
2818 1.1 christos bfd_boolean stubs_always_before_branch;
2819 1.1 christos bfd_boolean stub_changed;
2820 1.1 christos struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2821 1.1 christos
2822 1.1 christos if (htab == NULL)
2823 1.1 christos return FALSE;
2824 1.1 christos
2825 1.1 christos /* Stash our params away. */
2826 1.1 christos htab->stub_bfd = stub_bfd;
2827 1.1 christos htab->multi_subspace = multi_subspace;
2828 1.1 christos htab->add_stub_section = add_stub_section;
2829 1.1 christos htab->layout_sections_again = layout_sections_again;
2830 1.1 christos stubs_always_before_branch = group_size < 0;
2831 1.1 christos if (group_size < 0)
2832 1.1 christos stub_group_size = -group_size;
2833 1.1 christos else
2834 1.1 christos stub_group_size = group_size;
2835 1.1 christos if (stub_group_size == 1)
2836 1.1 christos {
2837 1.1 christos /* Default values. */
2838 1.1 christos if (stubs_always_before_branch)
2839 1.1 christos {
2840 1.1 christos stub_group_size = 7680000;
2841 1.1 christos if (htab->has_17bit_branch || htab->multi_subspace)
2842 1.1 christos stub_group_size = 240000;
2843 1.1 christos if (htab->has_12bit_branch)
2844 1.1 christos stub_group_size = 7500;
2845 1.1 christos }
2846 1.1 christos else
2847 1.1 christos {
2848 1.1 christos stub_group_size = 6971392;
2849 1.1 christos if (htab->has_17bit_branch || htab->multi_subspace)
2850 1.1 christos stub_group_size = 217856;
2851 1.1 christos if (htab->has_12bit_branch)
2852 1.1 christos stub_group_size = 6808;
2853 1.1 christos }
2854 1.1 christos }
2855 1.1 christos
2856 1.1 christos group_sections (htab, stub_group_size, stubs_always_before_branch);
2857 1.1 christos
2858 1.1 christos switch (get_local_syms (output_bfd, info->input_bfds, info))
2859 1.1 christos {
2860 1.1 christos default:
2861 1.1 christos if (htab->all_local_syms)
2862 1.1 christos goto error_ret_free_local;
2863 1.1 christos return FALSE;
2864 1.1 christos
2865 1.1 christos case 0:
2866 1.1 christos stub_changed = FALSE;
2867 1.1 christos break;
2868 1.1 christos
2869 1.1 christos case 1:
2870 1.1 christos stub_changed = TRUE;
2871 1.1 christos break;
2872 1.1 christos }
2873 1.1 christos
2874 1.1 christos while (1)
2875 1.1 christos {
2876 1.1 christos bfd *input_bfd;
2877 1.1 christos unsigned int bfd_indx;
2878 1.1 christos asection *stub_sec;
2879 1.1 christos
2880 1.1 christos for (input_bfd = info->input_bfds, bfd_indx = 0;
2881 1.1 christos input_bfd != NULL;
2882 1.1.1.4 christos input_bfd = input_bfd->link.next, bfd_indx++)
2883 1.1 christos {
2884 1.1 christos Elf_Internal_Shdr *symtab_hdr;
2885 1.1 christos asection *section;
2886 1.1 christos Elf_Internal_Sym *local_syms;
2887 1.1 christos
2888 1.1 christos /* We'll need the symbol table in a second. */
2889 1.1 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2890 1.1 christos if (symtab_hdr->sh_info == 0)
2891 1.1 christos continue;
2892 1.1 christos
2893 1.1 christos local_syms = htab->all_local_syms[bfd_indx];
2894 1.1 christos
2895 1.1 christos /* Walk over each section attached to the input bfd. */
2896 1.1 christos for (section = input_bfd->sections;
2897 1.1 christos section != NULL;
2898 1.1 christos section = section->next)
2899 1.1 christos {
2900 1.1 christos Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2901 1.1 christos
2902 1.1 christos /* If there aren't any relocs, then there's nothing more
2903 1.1 christos to do. */
2904 1.1 christos if ((section->flags & SEC_RELOC) == 0
2905 1.1 christos || section->reloc_count == 0)
2906 1.1 christos continue;
2907 1.1 christos
2908 1.1 christos /* If this section is a link-once section that will be
2909 1.1 christos discarded, then don't create any stubs. */
2910 1.1 christos if (section->output_section == NULL
2911 1.1 christos || section->output_section->owner != output_bfd)
2912 1.1 christos continue;
2913 1.1 christos
2914 1.1 christos /* Get the relocs. */
2915 1.1 christos internal_relocs
2916 1.1 christos = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
2917 1.1 christos info->keep_memory);
2918 1.1 christos if (internal_relocs == NULL)
2919 1.1 christos goto error_ret_free_local;
2920 1.1 christos
2921 1.1 christos /* Now examine each relocation. */
2922 1.1 christos irela = internal_relocs;
2923 1.1 christos irelaend = irela + section->reloc_count;
2924 1.1 christos for (; irela < irelaend; irela++)
2925 1.1 christos {
2926 1.1 christos unsigned int r_type, r_indx;
2927 1.1 christos enum elf32_hppa_stub_type stub_type;
2928 1.1 christos struct elf32_hppa_stub_hash_entry *hsh;
2929 1.1 christos asection *sym_sec;
2930 1.1 christos bfd_vma sym_value;
2931 1.1 christos bfd_vma destination;
2932 1.1 christos struct elf32_hppa_link_hash_entry *hh;
2933 1.1 christos char *stub_name;
2934 1.1 christos const asection *id_sec;
2935 1.1 christos
2936 1.1 christos r_type = ELF32_R_TYPE (irela->r_info);
2937 1.1 christos r_indx = ELF32_R_SYM (irela->r_info);
2938 1.1 christos
2939 1.1 christos if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2940 1.1 christos {
2941 1.1 christos bfd_set_error (bfd_error_bad_value);
2942 1.1 christos error_ret_free_internal:
2943 1.1 christos if (elf_section_data (section)->relocs == NULL)
2944 1.1 christos free (internal_relocs);
2945 1.1 christos goto error_ret_free_local;
2946 1.1 christos }
2947 1.1 christos
2948 1.1 christos /* Only look for stubs on call instructions. */
2949 1.1 christos if (r_type != (unsigned int) R_PARISC_PCREL12F
2950 1.1 christos && r_type != (unsigned int) R_PARISC_PCREL17F
2951 1.1 christos && r_type != (unsigned int) R_PARISC_PCREL22F)
2952 1.1 christos continue;
2953 1.1 christos
2954 1.1 christos /* Now determine the call target, its name, value,
2955 1.1 christos section. */
2956 1.1 christos sym_sec = NULL;
2957 1.1 christos sym_value = 0;
2958 1.1 christos destination = 0;
2959 1.1 christos hh = NULL;
2960 1.1 christos if (r_indx < symtab_hdr->sh_info)
2961 1.1 christos {
2962 1.1 christos /* It's a local symbol. */
2963 1.1 christos Elf_Internal_Sym *sym;
2964 1.1 christos Elf_Internal_Shdr *hdr;
2965 1.1 christos unsigned int shndx;
2966 1.1 christos
2967 1.1 christos sym = local_syms + r_indx;
2968 1.1 christos if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2969 1.1 christos sym_value = sym->st_value;
2970 1.1 christos shndx = sym->st_shndx;
2971 1.1 christos if (shndx < elf_numsections (input_bfd))
2972 1.1 christos {
2973 1.1 christos hdr = elf_elfsections (input_bfd)[shndx];
2974 1.1 christos sym_sec = hdr->bfd_section;
2975 1.1 christos destination = (sym_value + irela->r_addend
2976 1.1 christos + sym_sec->output_offset
2977 1.1 christos + sym_sec->output_section->vma);
2978 1.1 christos }
2979 1.1 christos }
2980 1.1 christos else
2981 1.1 christos {
2982 1.1 christos /* It's an external symbol. */
2983 1.1 christos int e_indx;
2984 1.1 christos
2985 1.1 christos e_indx = r_indx - symtab_hdr->sh_info;
2986 1.1 christos hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
2987 1.1 christos
2988 1.1 christos while (hh->eh.root.type == bfd_link_hash_indirect
2989 1.1 christos || hh->eh.root.type == bfd_link_hash_warning)
2990 1.1 christos hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
2991 1.1 christos
2992 1.1 christos if (hh->eh.root.type == bfd_link_hash_defined
2993 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak)
2994 1.1 christos {
2995 1.1 christos sym_sec = hh->eh.root.u.def.section;
2996 1.1 christos sym_value = hh->eh.root.u.def.value;
2997 1.1 christos if (sym_sec->output_section != NULL)
2998 1.1 christos destination = (sym_value + irela->r_addend
2999 1.1 christos + sym_sec->output_offset
3000 1.1 christos + sym_sec->output_section->vma);
3001 1.1 christos }
3002 1.1 christos else if (hh->eh.root.type == bfd_link_hash_undefweak)
3003 1.1 christos {
3004 1.1.1.5 christos if (! bfd_link_pic (info))
3005 1.1 christos continue;
3006 1.1 christos }
3007 1.1 christos else if (hh->eh.root.type == bfd_link_hash_undefined)
3008 1.1 christos {
3009 1.1 christos if (! (info->unresolved_syms_in_objects == RM_IGNORE
3010 1.1 christos && (ELF_ST_VISIBILITY (hh->eh.other)
3011 1.1 christos == STV_DEFAULT)
3012 1.1 christos && hh->eh.type != STT_PARISC_MILLI))
3013 1.1 christos continue;
3014 1.1 christos }
3015 1.1 christos else
3016 1.1 christos {
3017 1.1 christos bfd_set_error (bfd_error_bad_value);
3018 1.1 christos goto error_ret_free_internal;
3019 1.1 christos }
3020 1.1 christos }
3021 1.1 christos
3022 1.1 christos /* Determine what (if any) linker stub is needed. */
3023 1.1 christos stub_type = hppa_type_of_stub (section, irela, hh,
3024 1.1 christos destination, info);
3025 1.1 christos if (stub_type == hppa_stub_none)
3026 1.1 christos continue;
3027 1.1 christos
3028 1.1 christos /* Support for grouping stub sections. */
3029 1.1 christos id_sec = htab->stub_group[section->id].link_sec;
3030 1.1 christos
3031 1.1 christos /* Get the name of this stub. */
3032 1.1 christos stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
3033 1.1 christos if (!stub_name)
3034 1.1 christos goto error_ret_free_internal;
3035 1.1 christos
3036 1.1 christos hsh = hppa_stub_hash_lookup (&htab->bstab,
3037 1.1 christos stub_name,
3038 1.1 christos FALSE, FALSE);
3039 1.1 christos if (hsh != NULL)
3040 1.1 christos {
3041 1.1 christos /* The proper stub has already been created. */
3042 1.1 christos free (stub_name);
3043 1.1 christos continue;
3044 1.1 christos }
3045 1.1 christos
3046 1.1 christos hsh = hppa_add_stub (stub_name, section, htab);
3047 1.1 christos if (hsh == NULL)
3048 1.1 christos {
3049 1.1 christos free (stub_name);
3050 1.1 christos goto error_ret_free_internal;
3051 1.1 christos }
3052 1.1 christos
3053 1.1 christos hsh->target_value = sym_value;
3054 1.1 christos hsh->target_section = sym_sec;
3055 1.1 christos hsh->stub_type = stub_type;
3056 1.1.1.5 christos if (bfd_link_pic (info))
3057 1.1 christos {
3058 1.1 christos if (stub_type == hppa_stub_import)
3059 1.1 christos hsh->stub_type = hppa_stub_import_shared;
3060 1.1 christos else if (stub_type == hppa_stub_long_branch)
3061 1.1 christos hsh->stub_type = hppa_stub_long_branch_shared;
3062 1.1 christos }
3063 1.1 christos hsh->hh = hh;
3064 1.1 christos stub_changed = TRUE;
3065 1.1 christos }
3066 1.1 christos
3067 1.1 christos /* We're done with the internal relocs, free them. */
3068 1.1 christos if (elf_section_data (section)->relocs == NULL)
3069 1.1 christos free (internal_relocs);
3070 1.1 christos }
3071 1.1 christos }
3072 1.1 christos
3073 1.1 christos if (!stub_changed)
3074 1.1 christos break;
3075 1.1 christos
3076 1.1 christos /* OK, we've added some stubs. Find out the new size of the
3077 1.1 christos stub sections. */
3078 1.1 christos for (stub_sec = htab->stub_bfd->sections;
3079 1.1 christos stub_sec != NULL;
3080 1.1 christos stub_sec = stub_sec->next)
3081 1.1.1.5 christos if ((stub_sec->flags & SEC_LINKER_CREATED) == 0)
3082 1.1.1.5 christos stub_sec->size = 0;
3083 1.1 christos
3084 1.1 christos bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
3085 1.1 christos
3086 1.1 christos /* Ask the linker to do its stuff. */
3087 1.1 christos (*htab->layout_sections_again) ();
3088 1.1 christos stub_changed = FALSE;
3089 1.1 christos }
3090 1.1 christos
3091 1.1 christos free (htab->all_local_syms);
3092 1.1 christos return TRUE;
3093 1.1 christos
3094 1.1 christos error_ret_free_local:
3095 1.1 christos free (htab->all_local_syms);
3096 1.1 christos return FALSE;
3097 1.1 christos }
3098 1.1 christos
3099 1.1 christos /* For a final link, this function is called after we have sized the
3100 1.1 christos stubs to provide a value for __gp. */
3101 1.1 christos
3102 1.1 christos bfd_boolean
3103 1.1 christos elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
3104 1.1 christos {
3105 1.1 christos struct bfd_link_hash_entry *h;
3106 1.1 christos asection *sec = NULL;
3107 1.1 christos bfd_vma gp_val = 0;
3108 1.1 christos struct elf32_hppa_link_hash_table *htab;
3109 1.1 christos
3110 1.1 christos htab = hppa_link_hash_table (info);
3111 1.1 christos if (htab == NULL)
3112 1.1 christos return FALSE;
3113 1.1 christos
3114 1.1 christos h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
3115 1.1 christos
3116 1.1 christos if (h != NULL
3117 1.1 christos && (h->type == bfd_link_hash_defined
3118 1.1 christos || h->type == bfd_link_hash_defweak))
3119 1.1 christos {
3120 1.1 christos gp_val = h->u.def.value;
3121 1.1 christos sec = h->u.def.section;
3122 1.1 christos }
3123 1.1 christos else
3124 1.1 christos {
3125 1.1 christos asection *splt = bfd_get_section_by_name (abfd, ".plt");
3126 1.1 christos asection *sgot = bfd_get_section_by_name (abfd, ".got");
3127 1.1 christos
3128 1.1 christos /* Choose to point our LTP at, in this order, one of .plt, .got,
3129 1.1 christos or .data, if these sections exist. In the case of choosing
3130 1.1 christos .plt try to make the LTP ideal for addressing anywhere in the
3131 1.1 christos .plt or .got with a 14 bit signed offset. Typically, the end
3132 1.1 christos of the .plt is the start of the .got, so choose .plt + 0x2000
3133 1.1 christos if either the .plt or .got is larger than 0x2000. If both
3134 1.1 christos the .plt and .got are smaller than 0x2000, choose the end of
3135 1.1 christos the .plt section. */
3136 1.1 christos sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3137 1.1 christos ? NULL : splt;
3138 1.1 christos if (sec != NULL)
3139 1.1 christos {
3140 1.1 christos gp_val = sec->size;
3141 1.1 christos if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
3142 1.1 christos {
3143 1.1 christos gp_val = 0x2000;
3144 1.1 christos }
3145 1.1 christos }
3146 1.1 christos else
3147 1.1 christos {
3148 1.1 christos sec = sgot;
3149 1.1 christos if (sec != NULL)
3150 1.1 christos {
3151 1.1 christos if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3152 1.1 christos {
3153 1.1 christos /* We know we don't have a .plt. If .got is large,
3154 1.1 christos offset our LTP. */
3155 1.1 christos if (sec->size > 0x2000)
3156 1.1 christos gp_val = 0x2000;
3157 1.1 christos }
3158 1.1 christos }
3159 1.1 christos else
3160 1.1 christos {
3161 1.1 christos /* No .plt or .got. Who cares what the LTP is? */
3162 1.1 christos sec = bfd_get_section_by_name (abfd, ".data");
3163 1.1 christos }
3164 1.1 christos }
3165 1.1 christos
3166 1.1 christos if (h != NULL)
3167 1.1 christos {
3168 1.1 christos h->type = bfd_link_hash_defined;
3169 1.1 christos h->u.def.value = gp_val;
3170 1.1 christos if (sec != NULL)
3171 1.1 christos h->u.def.section = sec;
3172 1.1 christos else
3173 1.1 christos h->u.def.section = bfd_abs_section_ptr;
3174 1.1 christos }
3175 1.1 christos }
3176 1.1 christos
3177 1.1 christos if (sec != NULL && sec->output_section != NULL)
3178 1.1 christos gp_val += sec->output_section->vma + sec->output_offset;
3179 1.1 christos
3180 1.1 christos elf_gp (abfd) = gp_val;
3181 1.1 christos return TRUE;
3182 1.1 christos }
3183 1.1 christos
3184 1.1 christos /* Build all the stubs associated with the current output file. The
3185 1.1 christos stubs are kept in a hash table attached to the main linker hash
3186 1.1 christos table. We also set up the .plt entries for statically linked PIC
3187 1.1 christos functions here. This function is called via hppaelf_finish in the
3188 1.1 christos linker. */
3189 1.1 christos
3190 1.1 christos bfd_boolean
3191 1.1 christos elf32_hppa_build_stubs (struct bfd_link_info *info)
3192 1.1 christos {
3193 1.1 christos asection *stub_sec;
3194 1.1 christos struct bfd_hash_table *table;
3195 1.1 christos struct elf32_hppa_link_hash_table *htab;
3196 1.1 christos
3197 1.1 christos htab = hppa_link_hash_table (info);
3198 1.1 christos if (htab == NULL)
3199 1.1 christos return FALSE;
3200 1.1 christos
3201 1.1 christos for (stub_sec = htab->stub_bfd->sections;
3202 1.1 christos stub_sec != NULL;
3203 1.1 christos stub_sec = stub_sec->next)
3204 1.1.1.5 christos if ((stub_sec->flags & SEC_LINKER_CREATED) == 0
3205 1.1.1.5 christos && stub_sec->size != 0)
3206 1.1.1.5 christos {
3207 1.1.1.5 christos /* Allocate memory to hold the linker stubs. */
3208 1.1.1.5 christos stub_sec->contents = bfd_zalloc (htab->stub_bfd, stub_sec->size);
3209 1.1.1.5 christos if (stub_sec->contents == NULL)
3210 1.1.1.5 christos return FALSE;
3211 1.1.1.5 christos stub_sec->size = 0;
3212 1.1.1.5 christos }
3213 1.1 christos
3214 1.1 christos /* Build the stubs as directed by the stub hash table. */
3215 1.1 christos table = &htab->bstab;
3216 1.1 christos bfd_hash_traverse (table, hppa_build_one_stub, info);
3217 1.1 christos
3218 1.1 christos return TRUE;
3219 1.1 christos }
3220 1.1 christos
3221 1.1 christos /* Return the base vma address which should be subtracted from the real
3222 1.1.1.2 christos address when resolving a dtpoff relocation.
3223 1.1 christos This is PT_TLS segment p_vaddr. */
3224 1.1 christos
3225 1.1 christos static bfd_vma
3226 1.1 christos dtpoff_base (struct bfd_link_info *info)
3227 1.1 christos {
3228 1.1 christos /* If tls_sec is NULL, we should have signalled an error already. */
3229 1.1 christos if (elf_hash_table (info)->tls_sec == NULL)
3230 1.1 christos return 0;
3231 1.1 christos return elf_hash_table (info)->tls_sec->vma;
3232 1.1 christos }
3233 1.1 christos
3234 1.1 christos /* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3235 1.1 christos
3236 1.1 christos static bfd_vma
3237 1.1 christos tpoff (struct bfd_link_info *info, bfd_vma address)
3238 1.1 christos {
3239 1.1 christos struct elf_link_hash_table *htab = elf_hash_table (info);
3240 1.1 christos
3241 1.1 christos /* If tls_sec is NULL, we should have signalled an error already. */
3242 1.1 christos if (htab->tls_sec == NULL)
3243 1.1 christos return 0;
3244 1.1.1.2 christos /* hppa TLS ABI is variant I and static TLS block start just after
3245 1.1 christos tcbhead structure which has 2 pointer fields. */
3246 1.1.1.2 christos return (address - htab->tls_sec->vma
3247 1.1 christos + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3248 1.1 christos }
3249 1.1 christos
3250 1.1 christos /* Perform a final link. */
3251 1.1 christos
3252 1.1 christos static bfd_boolean
3253 1.1 christos elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
3254 1.1 christos {
3255 1.1.1.5 christos struct stat buf;
3256 1.1.1.5 christos
3257 1.1 christos /* Invoke the regular ELF linker to do all the work. */
3258 1.1 christos if (!bfd_elf_final_link (abfd, info))
3259 1.1 christos return FALSE;
3260 1.1 christos
3261 1.1 christos /* If we're producing a final executable, sort the contents of the
3262 1.1 christos unwind section. */
3263 1.1.1.5 christos if (bfd_link_relocatable (info))
3264 1.1.1.5 christos return TRUE;
3265 1.1.1.5 christos
3266 1.1.1.5 christos /* Do not attempt to sort non-regular files. This is here
3267 1.1.1.5 christos especially for configure scripts and kernel builds which run
3268 1.1.1.5 christos tests with "ld [...] -o /dev/null". */
3269 1.1.1.5 christos if (stat (abfd->filename, &buf) != 0
3270 1.1.1.5 christos || !S_ISREG(buf.st_mode))
3271 1.1 christos return TRUE;
3272 1.1 christos
3273 1.1 christos return elf_hppa_sort_unwind (abfd);
3274 1.1 christos }
3275 1.1 christos
3276 1.1 christos /* Record the lowest address for the data and text segments. */
3277 1.1 christos
3278 1.1 christos static void
3279 1.1 christos hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
3280 1.1 christos {
3281 1.1 christos struct elf32_hppa_link_hash_table *htab;
3282 1.1 christos
3283 1.1 christos htab = (struct elf32_hppa_link_hash_table*) data;
3284 1.1 christos if (htab == NULL)
3285 1.1 christos return;
3286 1.1 christos
3287 1.1 christos if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3288 1.1 christos {
3289 1.1 christos bfd_vma value;
3290 1.1 christos Elf_Internal_Phdr *p;
3291 1.1 christos
3292 1.1 christos p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3293 1.1 christos BFD_ASSERT (p != NULL);
3294 1.1 christos value = p->p_vaddr;
3295 1.1 christos
3296 1.1 christos if ((section->flags & SEC_READONLY) != 0)
3297 1.1 christos {
3298 1.1 christos if (value < htab->text_segment_base)
3299 1.1 christos htab->text_segment_base = value;
3300 1.1 christos }
3301 1.1 christos else
3302 1.1 christos {
3303 1.1 christos if (value < htab->data_segment_base)
3304 1.1 christos htab->data_segment_base = value;
3305 1.1 christos }
3306 1.1 christos }
3307 1.1 christos }
3308 1.1 christos
3309 1.1 christos /* Perform a relocation as part of a final link. */
3310 1.1 christos
3311 1.1 christos static bfd_reloc_status_type
3312 1.1 christos final_link_relocate (asection *input_section,
3313 1.1 christos bfd_byte *contents,
3314 1.1 christos const Elf_Internal_Rela *rela,
3315 1.1 christos bfd_vma value,
3316 1.1 christos struct elf32_hppa_link_hash_table *htab,
3317 1.1 christos asection *sym_sec,
3318 1.1 christos struct elf32_hppa_link_hash_entry *hh,
3319 1.1 christos struct bfd_link_info *info)
3320 1.1 christos {
3321 1.1 christos int insn;
3322 1.1 christos unsigned int r_type = ELF32_R_TYPE (rela->r_info);
3323 1.1 christos unsigned int orig_r_type = r_type;
3324 1.1 christos reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3325 1.1 christos int r_format = howto->bitsize;
3326 1.1 christos enum hppa_reloc_field_selector_type_alt r_field;
3327 1.1 christos bfd *input_bfd = input_section->owner;
3328 1.1 christos bfd_vma offset = rela->r_offset;
3329 1.1 christos bfd_vma max_branch_offset = 0;
3330 1.1 christos bfd_byte *hit_data = contents + offset;
3331 1.1 christos bfd_signed_vma addend = rela->r_addend;
3332 1.1 christos bfd_vma location;
3333 1.1 christos struct elf32_hppa_stub_hash_entry *hsh = NULL;
3334 1.1.1.2 christos int val;
3335 1.1 christos
3336 1.1 christos if (r_type == R_PARISC_NONE)
3337 1.1 christos return bfd_reloc_ok;
3338 1.1 christos
3339 1.1 christos insn = bfd_get_32 (input_bfd, hit_data);
3340 1.1 christos
3341 1.1 christos /* Find out where we are and where we're going. */
3342 1.1 christos location = (offset +
3343 1.1 christos input_section->output_offset +
3344 1.1 christos input_section->output_section->vma);
3345 1.1 christos
3346 1.1 christos /* If we are not building a shared library, convert DLTIND relocs to
3347 1.1 christos DPREL relocs. */
3348 1.1.1.5 christos if (!bfd_link_pic (info))
3349 1.1 christos {
3350 1.1 christos switch (r_type)
3351 1.1 christos {
3352 1.1 christos case R_PARISC_DLTIND21L:
3353 1.1.1.2 christos case R_PARISC_TLS_GD21L:
3354 1.1.1.2 christos case R_PARISC_TLS_LDM21L:
3355 1.1.1.2 christos case R_PARISC_TLS_IE21L:
3356 1.1 christos r_type = R_PARISC_DPREL21L;
3357 1.1 christos break;
3358 1.1 christos
3359 1.1 christos case R_PARISC_DLTIND14R:
3360 1.1.1.2 christos case R_PARISC_TLS_GD14R:
3361 1.1.1.2 christos case R_PARISC_TLS_LDM14R:
3362 1.1.1.2 christos case R_PARISC_TLS_IE14R:
3363 1.1 christos r_type = R_PARISC_DPREL14R;
3364 1.1 christos break;
3365 1.1 christos
3366 1.1 christos case R_PARISC_DLTIND14F:
3367 1.1 christos r_type = R_PARISC_DPREL14F;
3368 1.1 christos break;
3369 1.1 christos }
3370 1.1 christos }
3371 1.1 christos
3372 1.1 christos switch (r_type)
3373 1.1 christos {
3374 1.1 christos case R_PARISC_PCREL12F:
3375 1.1 christos case R_PARISC_PCREL17F:
3376 1.1 christos case R_PARISC_PCREL22F:
3377 1.1 christos /* If this call should go via the plt, find the import stub in
3378 1.1 christos the stub hash. */
3379 1.1 christos if (sym_sec == NULL
3380 1.1 christos || sym_sec->output_section == NULL
3381 1.1 christos || (hh != NULL
3382 1.1 christos && hh->eh.plt.offset != (bfd_vma) -1
3383 1.1 christos && hh->eh.dynindx != -1
3384 1.1 christos && !hh->plabel
3385 1.1.1.5 christos && (bfd_link_pic (info)
3386 1.1 christos || !hh->eh.def_regular
3387 1.1 christos || hh->eh.root.type == bfd_link_hash_defweak)))
3388 1.1 christos {
3389 1.1 christos hsh = hppa_get_stub_entry (input_section, sym_sec,
3390 1.1 christos hh, rela, htab);
3391 1.1 christos if (hsh != NULL)
3392 1.1 christos {
3393 1.1 christos value = (hsh->stub_offset
3394 1.1 christos + hsh->stub_sec->output_offset
3395 1.1 christos + hsh->stub_sec->output_section->vma);
3396 1.1 christos addend = 0;
3397 1.1 christos }
3398 1.1 christos else if (sym_sec == NULL && hh != NULL
3399 1.1 christos && hh->eh.root.type == bfd_link_hash_undefweak)
3400 1.1 christos {
3401 1.1 christos /* It's OK if undefined weak. Calls to undefined weak
3402 1.1 christos symbols behave as if the "called" function
3403 1.1 christos immediately returns. We can thus call to a weak
3404 1.1 christos function without first checking whether the function
3405 1.1 christos is defined. */
3406 1.1 christos value = location;
3407 1.1 christos addend = 8;
3408 1.1 christos }
3409 1.1 christos else
3410 1.1 christos return bfd_reloc_undefined;
3411 1.1 christos }
3412 1.1 christos /* Fall thru. */
3413 1.1 christos
3414 1.1 christos case R_PARISC_PCREL21L:
3415 1.1 christos case R_PARISC_PCREL17C:
3416 1.1 christos case R_PARISC_PCREL17R:
3417 1.1 christos case R_PARISC_PCREL14R:
3418 1.1 christos case R_PARISC_PCREL14F:
3419 1.1 christos case R_PARISC_PCREL32:
3420 1.1 christos /* Make it a pc relative offset. */
3421 1.1 christos value -= location;
3422 1.1 christos addend -= 8;
3423 1.1 christos break;
3424 1.1 christos
3425 1.1 christos case R_PARISC_DPREL21L:
3426 1.1 christos case R_PARISC_DPREL14R:
3427 1.1 christos case R_PARISC_DPREL14F:
3428 1.1 christos /* Convert instructions that use the linkage table pointer (r19) to
3429 1.1 christos instructions that use the global data pointer (dp). This is the
3430 1.1 christos most efficient way of using PIC code in an incomplete executable,
3431 1.1 christos but the user must follow the standard runtime conventions for
3432 1.1 christos accessing data for this to work. */
3433 1.1.1.2 christos if (orig_r_type != r_type)
3434 1.1.1.2 christos {
3435 1.1.1.2 christos if (r_type == R_PARISC_DPREL21L)
3436 1.1.1.2 christos {
3437 1.1.1.2 christos /* GCC sometimes uses a register other than r19 for the
3438 1.1.1.2 christos operation, so we must convert any addil instruction
3439 1.1.1.2 christos that uses this relocation. */
3440 1.1.1.2 christos if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3441 1.1.1.2 christos insn = ADDIL_DP;
3442 1.1.1.2 christos else
3443 1.1.1.2 christos /* We must have a ldil instruction. It's too hard to find
3444 1.1.1.2 christos and convert the associated add instruction, so issue an
3445 1.1.1.2 christos error. */
3446 1.1.1.2 christos (*_bfd_error_handler)
3447 1.1.1.2 christos (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3448 1.1.1.2 christos input_bfd,
3449 1.1.1.2 christos input_section,
3450 1.1.1.2 christos (long) offset,
3451 1.1.1.2 christos howto->name,
3452 1.1.1.2 christos insn);
3453 1.1.1.2 christos }
3454 1.1.1.2 christos else if (r_type == R_PARISC_DPREL14F)
3455 1.1.1.2 christos {
3456 1.1.1.2 christos /* This must be a format 1 load/store. Change the base
3457 1.1.1.2 christos register to dp. */
3458 1.1.1.2 christos insn = (insn & 0xfc1ffff) | (27 << 21);
3459 1.1.1.2 christos }
3460 1.1.1.2 christos }
3461 1.1.1.2 christos
3462 1.1.1.2 christos /* For all the DP relative relocations, we need to examine the symbol's
3463 1.1.1.2 christos section. If it has no section or if it's a code section, then
3464 1.1.1.2 christos "data pointer relative" makes no sense. In that case we don't
3465 1.1.1.2 christos adjust the "value", and for 21 bit addil instructions, we change the
3466 1.1.1.2 christos source addend register from %dp to %r0. This situation commonly
3467 1.1.1.2 christos arises for undefined weak symbols and when a variable's "constness"
3468 1.1.1.2 christos is declared differently from the way the variable is defined. For
3469 1.1.1.2 christos instance: "extern int foo" with foo defined as "const int foo". */
3470 1.1 christos if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
3471 1.1 christos {
3472 1.1 christos if ((insn & ((0x3f << 26) | (0x1f << 21)))
3473 1.1 christos == (((int) OP_ADDIL << 26) | (27 << 21)))
3474 1.1 christos {
3475 1.1 christos insn &= ~ (0x1f << 21);
3476 1.1 christos }
3477 1.1 christos /* Now try to make things easy for the dynamic linker. */
3478 1.1 christos
3479 1.1 christos break;
3480 1.1 christos }
3481 1.1 christos /* Fall thru. */
3482 1.1 christos
3483 1.1 christos case R_PARISC_DLTIND21L:
3484 1.1 christos case R_PARISC_DLTIND14R:
3485 1.1 christos case R_PARISC_DLTIND14F:
3486 1.1.1.2 christos case R_PARISC_TLS_GD21L:
3487 1.1.1.2 christos case R_PARISC_TLS_LDM21L:
3488 1.1.1.2 christos case R_PARISC_TLS_IE21L:
3489 1.1 christos case R_PARISC_TLS_GD14R:
3490 1.1 christos case R_PARISC_TLS_LDM14R:
3491 1.1 christos case R_PARISC_TLS_IE14R:
3492 1.1 christos value -= elf_gp (input_section->output_section->owner);
3493 1.1 christos break;
3494 1.1 christos
3495 1.1 christos case R_PARISC_SEGREL32:
3496 1.1 christos if ((sym_sec->flags & SEC_CODE) != 0)
3497 1.1 christos value -= htab->text_segment_base;
3498 1.1 christos else
3499 1.1 christos value -= htab->data_segment_base;
3500 1.1 christos break;
3501 1.1 christos
3502 1.1 christos default:
3503 1.1 christos break;
3504 1.1 christos }
3505 1.1 christos
3506 1.1 christos switch (r_type)
3507 1.1 christos {
3508 1.1 christos case R_PARISC_DIR32:
3509 1.1 christos case R_PARISC_DIR14F:
3510 1.1 christos case R_PARISC_DIR17F:
3511 1.1 christos case R_PARISC_PCREL17C:
3512 1.1 christos case R_PARISC_PCREL14F:
3513 1.1 christos case R_PARISC_PCREL32:
3514 1.1 christos case R_PARISC_DPREL14F:
3515 1.1 christos case R_PARISC_PLABEL32:
3516 1.1 christos case R_PARISC_DLTIND14F:
3517 1.1 christos case R_PARISC_SEGBASE:
3518 1.1 christos case R_PARISC_SEGREL32:
3519 1.1 christos case R_PARISC_TLS_DTPMOD32:
3520 1.1 christos case R_PARISC_TLS_DTPOFF32:
3521 1.1 christos case R_PARISC_TLS_TPREL32:
3522 1.1 christos r_field = e_fsel;
3523 1.1 christos break;
3524 1.1 christos
3525 1.1 christos case R_PARISC_DLTIND21L:
3526 1.1 christos case R_PARISC_PCREL21L:
3527 1.1 christos case R_PARISC_PLABEL21L:
3528 1.1 christos r_field = e_lsel;
3529 1.1 christos break;
3530 1.1 christos
3531 1.1 christos case R_PARISC_DIR21L:
3532 1.1 christos case R_PARISC_DPREL21L:
3533 1.1 christos case R_PARISC_TLS_GD21L:
3534 1.1 christos case R_PARISC_TLS_LDM21L:
3535 1.1 christos case R_PARISC_TLS_LDO21L:
3536 1.1 christos case R_PARISC_TLS_IE21L:
3537 1.1 christos case R_PARISC_TLS_LE21L:
3538 1.1 christos r_field = e_lrsel;
3539 1.1 christos break;
3540 1.1 christos
3541 1.1 christos case R_PARISC_PCREL17R:
3542 1.1 christos case R_PARISC_PCREL14R:
3543 1.1 christos case R_PARISC_PLABEL14R:
3544 1.1 christos case R_PARISC_DLTIND14R:
3545 1.1 christos r_field = e_rsel;
3546 1.1 christos break;
3547 1.1 christos
3548 1.1 christos case R_PARISC_DIR17R:
3549 1.1 christos case R_PARISC_DIR14R:
3550 1.1 christos case R_PARISC_DPREL14R:
3551 1.1 christos case R_PARISC_TLS_GD14R:
3552 1.1 christos case R_PARISC_TLS_LDM14R:
3553 1.1 christos case R_PARISC_TLS_LDO14R:
3554 1.1 christos case R_PARISC_TLS_IE14R:
3555 1.1 christos case R_PARISC_TLS_LE14R:
3556 1.1 christos r_field = e_rrsel;
3557 1.1 christos break;
3558 1.1 christos
3559 1.1 christos case R_PARISC_PCREL12F:
3560 1.1 christos case R_PARISC_PCREL17F:
3561 1.1 christos case R_PARISC_PCREL22F:
3562 1.1 christos r_field = e_fsel;
3563 1.1 christos
3564 1.1 christos if (r_type == (unsigned int) R_PARISC_PCREL17F)
3565 1.1 christos {
3566 1.1 christos max_branch_offset = (1 << (17-1)) << 2;
3567 1.1 christos }
3568 1.1 christos else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3569 1.1 christos {
3570 1.1 christos max_branch_offset = (1 << (12-1)) << 2;
3571 1.1 christos }
3572 1.1 christos else
3573 1.1 christos {
3574 1.1 christos max_branch_offset = (1 << (22-1)) << 2;
3575 1.1 christos }
3576 1.1 christos
3577 1.1 christos /* sym_sec is NULL on undefined weak syms or when shared on
3578 1.1 christos undefined syms. We've already checked for a stub for the
3579 1.1 christos shared undefined case. */
3580 1.1 christos if (sym_sec == NULL)
3581 1.1 christos break;
3582 1.1 christos
3583 1.1 christos /* If the branch is out of reach, then redirect the
3584 1.1 christos call to the local stub for this function. */
3585 1.1 christos if (value + addend + max_branch_offset >= 2*max_branch_offset)
3586 1.1 christos {
3587 1.1 christos hsh = hppa_get_stub_entry (input_section, sym_sec,
3588 1.1 christos hh, rela, htab);
3589 1.1 christos if (hsh == NULL)
3590 1.1 christos return bfd_reloc_undefined;
3591 1.1 christos
3592 1.1 christos /* Munge up the value and addend so that we call the stub
3593 1.1 christos rather than the procedure directly. */
3594 1.1 christos value = (hsh->stub_offset
3595 1.1 christos + hsh->stub_sec->output_offset
3596 1.1 christos + hsh->stub_sec->output_section->vma
3597 1.1 christos - location);
3598 1.1 christos addend = -8;
3599 1.1 christos }
3600 1.1 christos break;
3601 1.1 christos
3602 1.1 christos /* Something we don't know how to handle. */
3603 1.1 christos default:
3604 1.1 christos return bfd_reloc_notsupported;
3605 1.1 christos }
3606 1.1 christos
3607 1.1 christos /* Make sure we can reach the stub. */
3608 1.1 christos if (max_branch_offset != 0
3609 1.1 christos && value + addend + max_branch_offset >= 2*max_branch_offset)
3610 1.1 christos {
3611 1.1 christos (*_bfd_error_handler)
3612 1.1 christos (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3613 1.1 christos input_bfd,
3614 1.1 christos input_section,
3615 1.1 christos (long) offset,
3616 1.1 christos hsh->bh_root.string);
3617 1.1 christos bfd_set_error (bfd_error_bad_value);
3618 1.1 christos return bfd_reloc_notsupported;
3619 1.1 christos }
3620 1.1 christos
3621 1.1 christos val = hppa_field_adjust (value, addend, r_field);
3622 1.1 christos
3623 1.1 christos switch (r_type)
3624 1.1 christos {
3625 1.1 christos case R_PARISC_PCREL12F:
3626 1.1 christos case R_PARISC_PCREL17C:
3627 1.1 christos case R_PARISC_PCREL17F:
3628 1.1 christos case R_PARISC_PCREL17R:
3629 1.1 christos case R_PARISC_PCREL22F:
3630 1.1 christos case R_PARISC_DIR17F:
3631 1.1 christos case R_PARISC_DIR17R:
3632 1.1 christos /* This is a branch. Divide the offset by four.
3633 1.1 christos Note that we need to decide whether it's a branch or
3634 1.1 christos otherwise by inspecting the reloc. Inspecting insn won't
3635 1.1 christos work as insn might be from a .word directive. */
3636 1.1 christos val >>= 2;
3637 1.1 christos break;
3638 1.1 christos
3639 1.1 christos default:
3640 1.1 christos break;
3641 1.1 christos }
3642 1.1 christos
3643 1.1 christos insn = hppa_rebuild_insn (insn, val, r_format);
3644 1.1 christos
3645 1.1 christos /* Update the instruction word. */
3646 1.1 christos bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
3647 1.1 christos return bfd_reloc_ok;
3648 1.1 christos }
3649 1.1 christos
3650 1.1 christos /* Relocate an HPPA ELF section. */
3651 1.1 christos
3652 1.1 christos static bfd_boolean
3653 1.1 christos elf32_hppa_relocate_section (bfd *output_bfd,
3654 1.1 christos struct bfd_link_info *info,
3655 1.1 christos bfd *input_bfd,
3656 1.1 christos asection *input_section,
3657 1.1 christos bfd_byte *contents,
3658 1.1 christos Elf_Internal_Rela *relocs,
3659 1.1 christos Elf_Internal_Sym *local_syms,
3660 1.1 christos asection **local_sections)
3661 1.1 christos {
3662 1.1 christos bfd_vma *local_got_offsets;
3663 1.1 christos struct elf32_hppa_link_hash_table *htab;
3664 1.1 christos Elf_Internal_Shdr *symtab_hdr;
3665 1.1 christos Elf_Internal_Rela *rela;
3666 1.1 christos Elf_Internal_Rela *relend;
3667 1.1 christos
3668 1.1 christos symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3669 1.1 christos
3670 1.1 christos htab = hppa_link_hash_table (info);
3671 1.1 christos if (htab == NULL)
3672 1.1 christos return FALSE;
3673 1.1 christos
3674 1.1 christos local_got_offsets = elf_local_got_offsets (input_bfd);
3675 1.1 christos
3676 1.1 christos rela = relocs;
3677 1.1 christos relend = relocs + input_section->reloc_count;
3678 1.1 christos for (; rela < relend; rela++)
3679 1.1 christos {
3680 1.1 christos unsigned int r_type;
3681 1.1 christos reloc_howto_type *howto;
3682 1.1 christos unsigned int r_symndx;
3683 1.1 christos struct elf32_hppa_link_hash_entry *hh;
3684 1.1 christos Elf_Internal_Sym *sym;
3685 1.1 christos asection *sym_sec;
3686 1.1 christos bfd_vma relocation;
3687 1.1 christos bfd_reloc_status_type rstatus;
3688 1.1 christos const char *sym_name;
3689 1.1 christos bfd_boolean plabel;
3690 1.1 christos bfd_boolean warned_undef;
3691 1.1 christos
3692 1.1 christos r_type = ELF32_R_TYPE (rela->r_info);
3693 1.1 christos if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3694 1.1 christos {
3695 1.1 christos bfd_set_error (bfd_error_bad_value);
3696 1.1 christos return FALSE;
3697 1.1 christos }
3698 1.1 christos if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3699 1.1 christos || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3700 1.1 christos continue;
3701 1.1 christos
3702 1.1 christos r_symndx = ELF32_R_SYM (rela->r_info);
3703 1.1 christos hh = NULL;
3704 1.1 christos sym = NULL;
3705 1.1 christos sym_sec = NULL;
3706 1.1 christos warned_undef = FALSE;
3707 1.1 christos if (r_symndx < symtab_hdr->sh_info)
3708 1.1 christos {
3709 1.1 christos /* This is a local symbol, h defaults to NULL. */
3710 1.1 christos sym = local_syms + r_symndx;
3711 1.1 christos sym_sec = local_sections[r_symndx];
3712 1.1 christos relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
3713 1.1 christos }
3714 1.1 christos else
3715 1.1 christos {
3716 1.1 christos struct elf_link_hash_entry *eh;
3717 1.1.1.3 christos bfd_boolean unresolved_reloc, ignored;
3718 1.1 christos struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
3719 1.1 christos
3720 1.1 christos RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
3721 1.1 christos r_symndx, symtab_hdr, sym_hashes,
3722 1.1 christos eh, sym_sec, relocation,
3723 1.1.1.3 christos unresolved_reloc, warned_undef,
3724 1.1.1.3 christos ignored);
3725 1.1 christos
3726 1.1.1.5 christos if (!bfd_link_relocatable (info)
3727 1.1 christos && relocation == 0
3728 1.1 christos && eh->root.type != bfd_link_hash_defined
3729 1.1 christos && eh->root.type != bfd_link_hash_defweak
3730 1.1 christos && eh->root.type != bfd_link_hash_undefweak)
3731 1.1 christos {
3732 1.1 christos if (info->unresolved_syms_in_objects == RM_IGNORE
3733 1.1 christos && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3734 1.1 christos && eh->type == STT_PARISC_MILLI)
3735 1.1 christos {
3736 1.1.1.5 christos (*info->callbacks->undefined_symbol)
3737 1.1.1.5 christos (info, eh_name (eh), input_bfd,
3738 1.1.1.5 christos input_section, rela->r_offset, FALSE);
3739 1.1 christos warned_undef = TRUE;
3740 1.1 christos }
3741 1.1 christos }
3742 1.1 christos hh = hppa_elf_hash_entry (eh);
3743 1.1 christos }
3744 1.1 christos
3745 1.1.1.2 christos if (sym_sec != NULL && discarded_section (sym_sec))
3746 1.1 christos RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3747 1.1.1.2 christos rela, 1, relend,
3748 1.1.1.2 christos elf_hppa_howto_table + r_type, 0,
3749 1.1 christos contents);
3750 1.1 christos
3751 1.1.1.5 christos if (bfd_link_relocatable (info))
3752 1.1 christos continue;
3753 1.1 christos
3754 1.1 christos /* Do any required modifications to the relocation value, and
3755 1.1 christos determine what types of dynamic info we need to output, if
3756 1.1 christos any. */
3757 1.1 christos plabel = 0;
3758 1.1 christos switch (r_type)
3759 1.1 christos {
3760 1.1 christos case R_PARISC_DLTIND14F:
3761 1.1 christos case R_PARISC_DLTIND14R:
3762 1.1 christos case R_PARISC_DLTIND21L:
3763 1.1 christos {
3764 1.1 christos bfd_vma off;
3765 1.1 christos bfd_boolean do_got = 0;
3766 1.1 christos
3767 1.1 christos /* Relocation is to the entry for this symbol in the
3768 1.1 christos global offset table. */
3769 1.1 christos if (hh != NULL)
3770 1.1 christos {
3771 1.1 christos bfd_boolean dyn;
3772 1.1 christos
3773 1.1 christos off = hh->eh.got.offset;
3774 1.1 christos dyn = htab->etab.dynamic_sections_created;
3775 1.1.1.5 christos if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
3776 1.1.1.5 christos bfd_link_pic (info),
3777 1.1 christos &hh->eh))
3778 1.1 christos {
3779 1.1 christos /* If we aren't going to call finish_dynamic_symbol,
3780 1.1 christos then we need to handle initialisation of the .got
3781 1.1 christos entry and create needed relocs here. Since the
3782 1.1 christos offset must always be a multiple of 4, we use the
3783 1.1 christos least significant bit to record whether we have
3784 1.1 christos initialised it already. */
3785 1.1 christos if ((off & 1) != 0)
3786 1.1 christos off &= ~1;
3787 1.1 christos else
3788 1.1 christos {
3789 1.1 christos hh->eh.got.offset |= 1;
3790 1.1 christos do_got = 1;
3791 1.1 christos }
3792 1.1 christos }
3793 1.1 christos }
3794 1.1 christos else
3795 1.1 christos {
3796 1.1 christos /* Local symbol case. */
3797 1.1 christos if (local_got_offsets == NULL)
3798 1.1 christos abort ();
3799 1.1 christos
3800 1.1 christos off = local_got_offsets[r_symndx];
3801 1.1 christos
3802 1.1 christos /* The offset must always be a multiple of 4. We use
3803 1.1 christos the least significant bit to record whether we have
3804 1.1 christos already generated the necessary reloc. */
3805 1.1 christos if ((off & 1) != 0)
3806 1.1 christos off &= ~1;
3807 1.1 christos else
3808 1.1 christos {
3809 1.1 christos local_got_offsets[r_symndx] |= 1;
3810 1.1 christos do_got = 1;
3811 1.1 christos }
3812 1.1 christos }
3813 1.1 christos
3814 1.1 christos if (do_got)
3815 1.1 christos {
3816 1.1.1.5 christos if (bfd_link_pic (info))
3817 1.1 christos {
3818 1.1 christos /* Output a dynamic relocation for this GOT entry.
3819 1.1 christos In this case it is relative to the base of the
3820 1.1 christos object because the symbol index is zero. */
3821 1.1 christos Elf_Internal_Rela outrel;
3822 1.1 christos bfd_byte *loc;
3823 1.1 christos asection *sec = htab->srelgot;
3824 1.1 christos
3825 1.1 christos outrel.r_offset = (off
3826 1.1 christos + htab->sgot->output_offset
3827 1.1 christos + htab->sgot->output_section->vma);
3828 1.1 christos outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3829 1.1 christos outrel.r_addend = relocation;
3830 1.1 christos loc = sec->contents;
3831 1.1 christos loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
3832 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3833 1.1 christos }
3834 1.1 christos else
3835 1.1 christos bfd_put_32 (output_bfd, relocation,
3836 1.1 christos htab->sgot->contents + off);
3837 1.1 christos }
3838 1.1 christos
3839 1.1 christos if (off >= (bfd_vma) -2)
3840 1.1 christos abort ();
3841 1.1 christos
3842 1.1 christos /* Add the base of the GOT to the relocation value. */
3843 1.1 christos relocation = (off
3844 1.1 christos + htab->sgot->output_offset
3845 1.1 christos + htab->sgot->output_section->vma);
3846 1.1 christos }
3847 1.1 christos break;
3848 1.1 christos
3849 1.1 christos case R_PARISC_SEGREL32:
3850 1.1 christos /* If this is the first SEGREL relocation, then initialize
3851 1.1 christos the segment base values. */
3852 1.1 christos if (htab->text_segment_base == (bfd_vma) -1)
3853 1.1 christos bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
3854 1.1 christos break;
3855 1.1 christos
3856 1.1 christos case R_PARISC_PLABEL14R:
3857 1.1 christos case R_PARISC_PLABEL21L:
3858 1.1 christos case R_PARISC_PLABEL32:
3859 1.1 christos if (htab->etab.dynamic_sections_created)
3860 1.1 christos {
3861 1.1 christos bfd_vma off;
3862 1.1 christos bfd_boolean do_plt = 0;
3863 1.1 christos /* If we have a global symbol with a PLT slot, then
3864 1.1 christos redirect this relocation to it. */
3865 1.1 christos if (hh != NULL)
3866 1.1 christos {
3867 1.1 christos off = hh->eh.plt.offset;
3868 1.1.1.5 christos if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1,
3869 1.1.1.5 christos bfd_link_pic (info),
3870 1.1 christos &hh->eh))
3871 1.1 christos {
3872 1.1 christos /* In a non-shared link, adjust_dynamic_symbols
3873 1.1 christos isn't called for symbols forced local. We
3874 1.1 christos need to write out the plt entry here. */
3875 1.1 christos if ((off & 1) != 0)
3876 1.1 christos off &= ~1;
3877 1.1 christos else
3878 1.1 christos {
3879 1.1 christos hh->eh.plt.offset |= 1;
3880 1.1 christos do_plt = 1;
3881 1.1 christos }
3882 1.1 christos }
3883 1.1 christos }
3884 1.1 christos else
3885 1.1 christos {
3886 1.1 christos bfd_vma *local_plt_offsets;
3887 1.1 christos
3888 1.1 christos if (local_got_offsets == NULL)
3889 1.1 christos abort ();
3890 1.1 christos
3891 1.1 christos local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3892 1.1 christos off = local_plt_offsets[r_symndx];
3893 1.1 christos
3894 1.1 christos /* As for the local .got entry case, we use the last
3895 1.1 christos bit to record whether we've already initialised
3896 1.1 christos this local .plt entry. */
3897 1.1 christos if ((off & 1) != 0)
3898 1.1 christos off &= ~1;
3899 1.1 christos else
3900 1.1 christos {
3901 1.1 christos local_plt_offsets[r_symndx] |= 1;
3902 1.1 christos do_plt = 1;
3903 1.1 christos }
3904 1.1 christos }
3905 1.1 christos
3906 1.1 christos if (do_plt)
3907 1.1 christos {
3908 1.1.1.5 christos if (bfd_link_pic (info))
3909 1.1 christos {
3910 1.1 christos /* Output a dynamic IPLT relocation for this
3911 1.1 christos PLT entry. */
3912 1.1 christos Elf_Internal_Rela outrel;
3913 1.1 christos bfd_byte *loc;
3914 1.1 christos asection *s = htab->srelplt;
3915 1.1 christos
3916 1.1 christos outrel.r_offset = (off
3917 1.1 christos + htab->splt->output_offset
3918 1.1 christos + htab->splt->output_section->vma);
3919 1.1 christos outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3920 1.1 christos outrel.r_addend = relocation;
3921 1.1 christos loc = s->contents;
3922 1.1 christos loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
3923 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3924 1.1 christos }
3925 1.1 christos else
3926 1.1 christos {
3927 1.1 christos bfd_put_32 (output_bfd,
3928 1.1 christos relocation,
3929 1.1 christos htab->splt->contents + off);
3930 1.1 christos bfd_put_32 (output_bfd,
3931 1.1 christos elf_gp (htab->splt->output_section->owner),
3932 1.1 christos htab->splt->contents + off + 4);
3933 1.1 christos }
3934 1.1 christos }
3935 1.1 christos
3936 1.1 christos if (off >= (bfd_vma) -2)
3937 1.1 christos abort ();
3938 1.1 christos
3939 1.1 christos /* PLABELs contain function pointers. Relocation is to
3940 1.1 christos the entry for the function in the .plt. The magic +2
3941 1.1 christos offset signals to $$dyncall that the function pointer
3942 1.1 christos is in the .plt and thus has a gp pointer too.
3943 1.1 christos Exception: Undefined PLABELs should have a value of
3944 1.1 christos zero. */
3945 1.1 christos if (hh == NULL
3946 1.1 christos || (hh->eh.root.type != bfd_link_hash_undefweak
3947 1.1 christos && hh->eh.root.type != bfd_link_hash_undefined))
3948 1.1 christos {
3949 1.1 christos relocation = (off
3950 1.1 christos + htab->splt->output_offset
3951 1.1 christos + htab->splt->output_section->vma
3952 1.1 christos + 2);
3953 1.1 christos }
3954 1.1 christos plabel = 1;
3955 1.1 christos }
3956 1.1 christos /* Fall through and possibly emit a dynamic relocation. */
3957 1.1 christos
3958 1.1 christos case R_PARISC_DIR17F:
3959 1.1 christos case R_PARISC_DIR17R:
3960 1.1 christos case R_PARISC_DIR14F:
3961 1.1 christos case R_PARISC_DIR14R:
3962 1.1 christos case R_PARISC_DIR21L:
3963 1.1 christos case R_PARISC_DPREL14F:
3964 1.1 christos case R_PARISC_DPREL14R:
3965 1.1 christos case R_PARISC_DPREL21L:
3966 1.1 christos case R_PARISC_DIR32:
3967 1.1 christos if ((input_section->flags & SEC_ALLOC) == 0)
3968 1.1 christos break;
3969 1.1 christos
3970 1.1 christos /* The reloc types handled here and this conditional
3971 1.1 christos expression must match the code in ..check_relocs and
3972 1.1 christos allocate_dynrelocs. ie. We need exactly the same condition
3973 1.1 christos as in ..check_relocs, with some extra conditions (dynindx
3974 1.1 christos test in this case) to cater for relocs removed by
3975 1.1 christos allocate_dynrelocs. If you squint, the non-shared test
3976 1.1 christos here does indeed match the one in ..check_relocs, the
3977 1.1 christos difference being that here we test DEF_DYNAMIC as well as
3978 1.1 christos !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3979 1.1 christos which is why we can't use just that test here.
3980 1.1 christos Conversely, DEF_DYNAMIC can't be used in check_relocs as
3981 1.1 christos there all files have not been loaded. */
3982 1.1.1.5 christos if ((bfd_link_pic (info)
3983 1.1 christos && (hh == NULL
3984 1.1 christos || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3985 1.1 christos || hh->eh.root.type != bfd_link_hash_undefweak)
3986 1.1 christos && (IS_ABSOLUTE_RELOC (r_type)
3987 1.1 christos || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
3988 1.1.1.5 christos || (!bfd_link_pic (info)
3989 1.1 christos && hh != NULL
3990 1.1 christos && hh->eh.dynindx != -1
3991 1.1 christos && !hh->eh.non_got_ref
3992 1.1 christos && ((ELIMINATE_COPY_RELOCS
3993 1.1 christos && hh->eh.def_dynamic
3994 1.1 christos && !hh->eh.def_regular)
3995 1.1 christos || hh->eh.root.type == bfd_link_hash_undefweak
3996 1.1 christos || hh->eh.root.type == bfd_link_hash_undefined)))
3997 1.1 christos {
3998 1.1 christos Elf_Internal_Rela outrel;
3999 1.1 christos bfd_boolean skip;
4000 1.1 christos asection *sreloc;
4001 1.1 christos bfd_byte *loc;
4002 1.1 christos
4003 1.1 christos /* When generating a shared object, these relocations
4004 1.1 christos are copied into the output file to be resolved at run
4005 1.1 christos time. */
4006 1.1 christos
4007 1.1 christos outrel.r_addend = rela->r_addend;
4008 1.1 christos outrel.r_offset =
4009 1.1 christos _bfd_elf_section_offset (output_bfd, info, input_section,
4010 1.1 christos rela->r_offset);
4011 1.1 christos skip = (outrel.r_offset == (bfd_vma) -1
4012 1.1 christos || outrel.r_offset == (bfd_vma) -2);
4013 1.1 christos outrel.r_offset += (input_section->output_offset
4014 1.1 christos + input_section->output_section->vma);
4015 1.1.1.2 christos
4016 1.1 christos if (skip)
4017 1.1 christos {
4018 1.1 christos memset (&outrel, 0, sizeof (outrel));
4019 1.1 christos }
4020 1.1 christos else if (hh != NULL
4021 1.1 christos && hh->eh.dynindx != -1
4022 1.1 christos && (plabel
4023 1.1 christos || !IS_ABSOLUTE_RELOC (r_type)
4024 1.1.1.5 christos || !bfd_link_pic (info)
4025 1.1.1.5 christos || !SYMBOLIC_BIND (info, &hh->eh)
4026 1.1 christos || !hh->eh.def_regular))
4027 1.1 christos {
4028 1.1 christos outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
4029 1.1 christos }
4030 1.1 christos else /* It's a local symbol, or one marked to become local. */
4031 1.1 christos {
4032 1.1 christos int indx = 0;
4033 1.1 christos
4034 1.1 christos /* Add the absolute offset of the symbol. */
4035 1.1 christos outrel.r_addend += relocation;
4036 1.1 christos
4037 1.1 christos /* Global plabels need to be processed by the
4038 1.1 christos dynamic linker so that functions have at most one
4039 1.1 christos fptr. For this reason, we need to differentiate
4040 1.1 christos between global and local plabels, which we do by
4041 1.1 christos providing the function symbol for a global plabel
4042 1.1 christos reloc, and no symbol for local plabels. */
4043 1.1 christos if (! plabel
4044 1.1 christos && sym_sec != NULL
4045 1.1 christos && sym_sec->output_section != NULL
4046 1.1 christos && ! bfd_is_abs_section (sym_sec))
4047 1.1 christos {
4048 1.1 christos asection *osec;
4049 1.1 christos
4050 1.1 christos osec = sym_sec->output_section;
4051 1.1 christos indx = elf_section_data (osec)->dynindx;
4052 1.1 christos if (indx == 0)
4053 1.1 christos {
4054 1.1 christos osec = htab->etab.text_index_section;
4055 1.1 christos indx = elf_section_data (osec)->dynindx;
4056 1.1 christos }
4057 1.1 christos BFD_ASSERT (indx != 0);
4058 1.1 christos
4059 1.1 christos /* We are turning this relocation into one
4060 1.1 christos against a section symbol, so subtract out the
4061 1.1 christos output section's address but not the offset
4062 1.1 christos of the input section in the output section. */
4063 1.1 christos outrel.r_addend -= osec->vma;
4064 1.1 christos }
4065 1.1 christos
4066 1.1 christos outrel.r_info = ELF32_R_INFO (indx, r_type);
4067 1.1 christos }
4068 1.1 christos sreloc = elf_section_data (input_section)->sreloc;
4069 1.1 christos if (sreloc == NULL)
4070 1.1 christos abort ();
4071 1.1 christos
4072 1.1 christos loc = sreloc->contents;
4073 1.1 christos loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
4074 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4075 1.1 christos }
4076 1.1 christos break;
4077 1.1.1.2 christos
4078 1.1 christos case R_PARISC_TLS_LDM21L:
4079 1.1 christos case R_PARISC_TLS_LDM14R:
4080 1.1 christos {
4081 1.1 christos bfd_vma off;
4082 1.1.1.2 christos
4083 1.1 christos off = htab->tls_ldm_got.offset;
4084 1.1 christos if (off & 1)
4085 1.1 christos off &= ~1;
4086 1.1 christos else
4087 1.1 christos {
4088 1.1 christos Elf_Internal_Rela outrel;
4089 1.1 christos bfd_byte *loc;
4090 1.1 christos
4091 1.1.1.2 christos outrel.r_offset = (off
4092 1.1 christos + htab->sgot->output_section->vma
4093 1.1 christos + htab->sgot->output_offset);
4094 1.1 christos outrel.r_addend = 0;
4095 1.1 christos outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
4096 1.1.1.2 christos loc = htab->srelgot->contents;
4097 1.1 christos loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4098 1.1 christos
4099 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4100 1.1 christos htab->tls_ldm_got.offset |= 1;
4101 1.1 christos }
4102 1.1 christos
4103 1.1 christos /* Add the base of the GOT to the relocation value. */
4104 1.1 christos relocation = (off
4105 1.1 christos + htab->sgot->output_offset
4106 1.1 christos + htab->sgot->output_section->vma);
4107 1.1 christos
4108 1.1 christos break;
4109 1.1 christos }
4110 1.1 christos
4111 1.1 christos case R_PARISC_TLS_LDO21L:
4112 1.1 christos case R_PARISC_TLS_LDO14R:
4113 1.1 christos relocation -= dtpoff_base (info);
4114 1.1 christos break;
4115 1.1 christos
4116 1.1 christos case R_PARISC_TLS_GD21L:
4117 1.1 christos case R_PARISC_TLS_GD14R:
4118 1.1 christos case R_PARISC_TLS_IE21L:
4119 1.1 christos case R_PARISC_TLS_IE14R:
4120 1.1 christos {
4121 1.1 christos bfd_vma off;
4122 1.1 christos int indx;
4123 1.1 christos char tls_type;
4124 1.1 christos
4125 1.1 christos indx = 0;
4126 1.1 christos if (hh != NULL)
4127 1.1 christos {
4128 1.1 christos bfd_boolean dyn;
4129 1.1 christos dyn = htab->etab.dynamic_sections_created;
4130 1.1 christos
4131 1.1.1.5 christos if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn,
4132 1.1.1.5 christos bfd_link_pic (info),
4133 1.1.1.5 christos &hh->eh)
4134 1.1.1.5 christos && (!bfd_link_pic (info)
4135 1.1 christos || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4136 1.1 christos {
4137 1.1 christos indx = hh->eh.dynindx;
4138 1.1 christos }
4139 1.1 christos off = hh->eh.got.offset;
4140 1.1 christos tls_type = hh->tls_type;
4141 1.1 christos }
4142 1.1 christos else
4143 1.1 christos {
4144 1.1 christos off = local_got_offsets[r_symndx];
4145 1.1 christos tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4146 1.1 christos }
4147 1.1 christos
4148 1.1 christos if (tls_type == GOT_UNKNOWN)
4149 1.1 christos abort ();
4150 1.1 christos
4151 1.1 christos if ((off & 1) != 0)
4152 1.1 christos off &= ~1;
4153 1.1 christos else
4154 1.1 christos {
4155 1.1 christos bfd_boolean need_relocs = FALSE;
4156 1.1 christos Elf_Internal_Rela outrel;
4157 1.1 christos bfd_byte *loc = NULL;
4158 1.1 christos int cur_off = off;
4159 1.1 christos
4160 1.1 christos /* The GOT entries have not been initialized yet. Do it
4161 1.1 christos now, and emit any relocations. If both an IE GOT and a
4162 1.1 christos GD GOT are necessary, we emit the GD first. */
4163 1.1 christos
4164 1.1.1.5 christos if ((bfd_link_pic (info) || indx != 0)
4165 1.1 christos && (hh == NULL
4166 1.1 christos || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4167 1.1 christos || hh->eh.root.type != bfd_link_hash_undefweak))
4168 1.1 christos {
4169 1.1 christos need_relocs = TRUE;
4170 1.1.1.2 christos loc = htab->srelgot->contents;
4171 1.1 christos /* FIXME (CAO): Should this be reloc_count++ ? */
4172 1.1 christos loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
4173 1.1 christos }
4174 1.1 christos
4175 1.1 christos if (tls_type & GOT_TLS_GD)
4176 1.1 christos {
4177 1.1 christos if (need_relocs)
4178 1.1 christos {
4179 1.1 christos outrel.r_offset = (cur_off
4180 1.1 christos + htab->sgot->output_section->vma
4181 1.1 christos + htab->sgot->output_offset);
4182 1.1 christos outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4183 1.1 christos outrel.r_addend = 0;
4184 1.1 christos bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
4185 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4186 1.1 christos htab->srelgot->reloc_count++;
4187 1.1 christos loc += sizeof (Elf32_External_Rela);
4188 1.1 christos
4189 1.1 christos if (indx == 0)
4190 1.1 christos bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4191 1.1 christos htab->sgot->contents + cur_off + 4);
4192 1.1 christos else
4193 1.1 christos {
4194 1.1 christos bfd_put_32 (output_bfd, 0,
4195 1.1 christos htab->sgot->contents + cur_off + 4);
4196 1.1 christos outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4197 1.1 christos outrel.r_offset += 4;
4198 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4199 1.1 christos htab->srelgot->reloc_count++;
4200 1.1 christos loc += sizeof (Elf32_External_Rela);
4201 1.1 christos }
4202 1.1 christos }
4203 1.1 christos else
4204 1.1 christos {
4205 1.1 christos /* If we are not emitting relocations for a
4206 1.1 christos general dynamic reference, then we must be in a
4207 1.1 christos static link or an executable link with the
4208 1.1 christos symbol binding locally. Mark it as belonging
4209 1.1 christos to module 1, the executable. */
4210 1.1 christos bfd_put_32 (output_bfd, 1,
4211 1.1 christos htab->sgot->contents + cur_off);
4212 1.1 christos bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4213 1.1 christos htab->sgot->contents + cur_off + 4);
4214 1.1 christos }
4215 1.1 christos
4216 1.1 christos
4217 1.1 christos cur_off += 8;
4218 1.1 christos }
4219 1.1 christos
4220 1.1 christos if (tls_type & GOT_TLS_IE)
4221 1.1 christos {
4222 1.1 christos if (need_relocs)
4223 1.1 christos {
4224 1.1 christos outrel.r_offset = (cur_off
4225 1.1 christos + htab->sgot->output_section->vma
4226 1.1 christos + htab->sgot->output_offset);
4227 1.1 christos outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4228 1.1 christos
4229 1.1 christos if (indx == 0)
4230 1.1 christos outrel.r_addend = relocation - dtpoff_base (info);
4231 1.1 christos else
4232 1.1 christos outrel.r_addend = 0;
4233 1.1 christos
4234 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4235 1.1 christos htab->srelgot->reloc_count++;
4236 1.1 christos loc += sizeof (Elf32_External_Rela);
4237 1.1 christos }
4238 1.1 christos else
4239 1.1 christos bfd_put_32 (output_bfd, tpoff (info, relocation),
4240 1.1 christos htab->sgot->contents + cur_off);
4241 1.1 christos
4242 1.1 christos cur_off += 4;
4243 1.1 christos }
4244 1.1 christos
4245 1.1 christos if (hh != NULL)
4246 1.1 christos hh->eh.got.offset |= 1;
4247 1.1 christos else
4248 1.1 christos local_got_offsets[r_symndx] |= 1;
4249 1.1 christos }
4250 1.1 christos
4251 1.1 christos if ((tls_type & GOT_TLS_GD)
4252 1.1 christos && r_type != R_PARISC_TLS_GD21L
4253 1.1 christos && r_type != R_PARISC_TLS_GD14R)
4254 1.1 christos off += 2 * GOT_ENTRY_SIZE;
4255 1.1 christos
4256 1.1 christos /* Add the base of the GOT to the relocation value. */
4257 1.1 christos relocation = (off
4258 1.1 christos + htab->sgot->output_offset
4259 1.1 christos + htab->sgot->output_section->vma);
4260 1.1 christos
4261 1.1 christos break;
4262 1.1 christos }
4263 1.1 christos
4264 1.1 christos case R_PARISC_TLS_LE21L:
4265 1.1 christos case R_PARISC_TLS_LE14R:
4266 1.1 christos {
4267 1.1 christos relocation = tpoff (info, relocation);
4268 1.1 christos break;
4269 1.1 christos }
4270 1.1 christos break;
4271 1.1 christos
4272 1.1 christos default:
4273 1.1 christos break;
4274 1.1 christos }
4275 1.1 christos
4276 1.1 christos rstatus = final_link_relocate (input_section, contents, rela, relocation,
4277 1.1 christos htab, sym_sec, hh, info);
4278 1.1 christos
4279 1.1 christos if (rstatus == bfd_reloc_ok)
4280 1.1 christos continue;
4281 1.1 christos
4282 1.1 christos if (hh != NULL)
4283 1.1 christos sym_name = hh_name (hh);
4284 1.1 christos else
4285 1.1 christos {
4286 1.1 christos sym_name = bfd_elf_string_from_elf_section (input_bfd,
4287 1.1 christos symtab_hdr->sh_link,
4288 1.1 christos sym->st_name);
4289 1.1 christos if (sym_name == NULL)
4290 1.1 christos return FALSE;
4291 1.1 christos if (*sym_name == '\0')
4292 1.1 christos sym_name = bfd_section_name (input_bfd, sym_sec);
4293 1.1 christos }
4294 1.1 christos
4295 1.1 christos howto = elf_hppa_howto_table + r_type;
4296 1.1 christos
4297 1.1 christos if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
4298 1.1 christos {
4299 1.1 christos if (rstatus == bfd_reloc_notsupported || !warned_undef)
4300 1.1 christos {
4301 1.1 christos (*_bfd_error_handler)
4302 1.1 christos (_("%B(%A+0x%lx): cannot handle %s for %s"),
4303 1.1 christos input_bfd,
4304 1.1 christos input_section,
4305 1.1 christos (long) rela->r_offset,
4306 1.1 christos howto->name,
4307 1.1 christos sym_name);
4308 1.1 christos bfd_set_error (bfd_error_bad_value);
4309 1.1 christos return FALSE;
4310 1.1 christos }
4311 1.1 christos }
4312 1.1 christos else
4313 1.1.1.5 christos (*info->callbacks->reloc_overflow)
4314 1.1.1.5 christos (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
4315 1.1.1.5 christos (bfd_vma) 0, input_bfd, input_section, rela->r_offset);
4316 1.1 christos }
4317 1.1 christos
4318 1.1 christos return TRUE;
4319 1.1 christos }
4320 1.1 christos
4321 1.1 christos /* Finish up dynamic symbol handling. We set the contents of various
4322 1.1 christos dynamic sections here. */
4323 1.1 christos
4324 1.1 christos static bfd_boolean
4325 1.1 christos elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4326 1.1 christos struct bfd_link_info *info,
4327 1.1 christos struct elf_link_hash_entry *eh,
4328 1.1 christos Elf_Internal_Sym *sym)
4329 1.1 christos {
4330 1.1 christos struct elf32_hppa_link_hash_table *htab;
4331 1.1 christos Elf_Internal_Rela rela;
4332 1.1 christos bfd_byte *loc;
4333 1.1 christos
4334 1.1 christos htab = hppa_link_hash_table (info);
4335 1.1 christos if (htab == NULL)
4336 1.1 christos return FALSE;
4337 1.1 christos
4338 1.1 christos if (eh->plt.offset != (bfd_vma) -1)
4339 1.1 christos {
4340 1.1 christos bfd_vma value;
4341 1.1 christos
4342 1.1 christos if (eh->plt.offset & 1)
4343 1.1 christos abort ();
4344 1.1 christos
4345 1.1 christos /* This symbol has an entry in the procedure linkage table. Set
4346 1.1 christos it up.
4347 1.1 christos
4348 1.1 christos The format of a plt entry is
4349 1.1 christos <funcaddr>
4350 1.1 christos <__gp>
4351 1.1 christos */
4352 1.1 christos value = 0;
4353 1.1 christos if (eh->root.type == bfd_link_hash_defined
4354 1.1 christos || eh->root.type == bfd_link_hash_defweak)
4355 1.1 christos {
4356 1.1 christos value = eh->root.u.def.value;
4357 1.1 christos if (eh->root.u.def.section->output_section != NULL)
4358 1.1 christos value += (eh->root.u.def.section->output_offset
4359 1.1 christos + eh->root.u.def.section->output_section->vma);
4360 1.1 christos }
4361 1.1 christos
4362 1.1 christos /* Create a dynamic IPLT relocation for this entry. */
4363 1.1 christos rela.r_offset = (eh->plt.offset
4364 1.1 christos + htab->splt->output_offset
4365 1.1 christos + htab->splt->output_section->vma);
4366 1.1 christos if (eh->dynindx != -1)
4367 1.1 christos {
4368 1.1 christos rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4369 1.1 christos rela.r_addend = 0;
4370 1.1 christos }
4371 1.1 christos else
4372 1.1 christos {
4373 1.1 christos /* This symbol has been marked to become local, and is
4374 1.1 christos used by a plabel so must be kept in the .plt. */
4375 1.1 christos rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4376 1.1 christos rela.r_addend = value;
4377 1.1 christos }
4378 1.1 christos
4379 1.1 christos loc = htab->srelplt->contents;
4380 1.1 christos loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
4381 1.1 christos bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc);
4382 1.1 christos
4383 1.1 christos if (!eh->def_regular)
4384 1.1 christos {
4385 1.1 christos /* Mark the symbol as undefined, rather than as defined in
4386 1.1 christos the .plt section. Leave the value alone. */
4387 1.1 christos sym->st_shndx = SHN_UNDEF;
4388 1.1 christos }
4389 1.1 christos }
4390 1.1 christos
4391 1.1 christos if (eh->got.offset != (bfd_vma) -1
4392 1.1 christos && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4393 1.1 christos && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
4394 1.1 christos {
4395 1.1 christos /* This symbol has an entry in the global offset table. Set it
4396 1.1 christos up. */
4397 1.1 christos
4398 1.1 christos rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
4399 1.1 christos + htab->sgot->output_offset
4400 1.1 christos + htab->sgot->output_section->vma);
4401 1.1 christos
4402 1.1 christos /* If this is a -Bsymbolic link and the symbol is defined
4403 1.1 christos locally or was forced to be local because of a version file,
4404 1.1 christos we just want to emit a RELATIVE reloc. The entry in the
4405 1.1 christos global offset table will already have been initialized in the
4406 1.1 christos relocate_section function. */
4407 1.1.1.5 christos if (bfd_link_pic (info)
4408 1.1.1.5 christos && (SYMBOLIC_BIND (info, eh) || eh->dynindx == -1)
4409 1.1 christos && eh->def_regular)
4410 1.1 christos {
4411 1.1 christos rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4412 1.1 christos rela.r_addend = (eh->root.u.def.value
4413 1.1 christos + eh->root.u.def.section->output_offset
4414 1.1 christos + eh->root.u.def.section->output_section->vma);
4415 1.1 christos }
4416 1.1 christos else
4417 1.1 christos {
4418 1.1 christos if ((eh->got.offset & 1) != 0)
4419 1.1 christos abort ();
4420 1.1 christos
4421 1.1 christos bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1));
4422 1.1 christos rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4423 1.1 christos rela.r_addend = 0;
4424 1.1 christos }
4425 1.1 christos
4426 1.1 christos loc = htab->srelgot->contents;
4427 1.1 christos loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4428 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4429 1.1 christos }
4430 1.1 christos
4431 1.1 christos if (eh->needs_copy)
4432 1.1 christos {
4433 1.1 christos asection *sec;
4434 1.1 christos
4435 1.1 christos /* This symbol needs a copy reloc. Set it up. */
4436 1.1 christos
4437 1.1 christos if (! (eh->dynindx != -1
4438 1.1 christos && (eh->root.type == bfd_link_hash_defined
4439 1.1 christos || eh->root.type == bfd_link_hash_defweak)))
4440 1.1 christos abort ();
4441 1.1 christos
4442 1.1 christos sec = htab->srelbss;
4443 1.1 christos
4444 1.1 christos rela.r_offset = (eh->root.u.def.value
4445 1.1 christos + eh->root.u.def.section->output_offset
4446 1.1 christos + eh->root.u.def.section->output_section->vma);
4447 1.1 christos rela.r_addend = 0;
4448 1.1 christos rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4449 1.1 christos loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4450 1.1 christos bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
4451 1.1 christos }
4452 1.1 christos
4453 1.1 christos /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
4454 1.1.1.2 christos if (eh == htab->etab.hdynamic || eh == htab->etab.hgot)
4455 1.1 christos {
4456 1.1 christos sym->st_shndx = SHN_ABS;
4457 1.1 christos }
4458 1.1 christos
4459 1.1 christos return TRUE;
4460 1.1 christos }
4461 1.1 christos
4462 1.1 christos /* Used to decide how to sort relocs in an optimal manner for the
4463 1.1 christos dynamic linker, before writing them out. */
4464 1.1 christos
4465 1.1 christos static enum elf_reloc_type_class
4466 1.1.1.3 christos elf32_hppa_reloc_type_class (const struct bfd_link_info *info ATTRIBUTE_UNUSED,
4467 1.1.1.3 christos const asection *rel_sec ATTRIBUTE_UNUSED,
4468 1.1.1.3 christos const Elf_Internal_Rela *rela)
4469 1.1 christos {
4470 1.1 christos /* Handle TLS relocs first; we don't want them to be marked
4471 1.1 christos relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
4472 1.1 christos check below. */
4473 1.1 christos switch ((int) ELF32_R_TYPE (rela->r_info))
4474 1.1 christos {
4475 1.1 christos case R_PARISC_TLS_DTPMOD32:
4476 1.1 christos case R_PARISC_TLS_DTPOFF32:
4477 1.1 christos case R_PARISC_TLS_TPREL32:
4478 1.1 christos return reloc_class_normal;
4479 1.1 christos }
4480 1.1 christos
4481 1.1 christos if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
4482 1.1 christos return reloc_class_relative;
4483 1.1 christos
4484 1.1 christos switch ((int) ELF32_R_TYPE (rela->r_info))
4485 1.1 christos {
4486 1.1 christos case R_PARISC_IPLT:
4487 1.1 christos return reloc_class_plt;
4488 1.1 christos case R_PARISC_COPY:
4489 1.1 christos return reloc_class_copy;
4490 1.1 christos default:
4491 1.1 christos return reloc_class_normal;
4492 1.1 christos }
4493 1.1 christos }
4494 1.1 christos
4495 1.1 christos /* Finish up the dynamic sections. */
4496 1.1 christos
4497 1.1 christos static bfd_boolean
4498 1.1 christos elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4499 1.1 christos struct bfd_link_info *info)
4500 1.1 christos {
4501 1.1 christos bfd *dynobj;
4502 1.1 christos struct elf32_hppa_link_hash_table *htab;
4503 1.1 christos asection *sdyn;
4504 1.1.1.2 christos asection * sgot;
4505 1.1 christos
4506 1.1 christos htab = hppa_link_hash_table (info);
4507 1.1 christos if (htab == NULL)
4508 1.1 christos return FALSE;
4509 1.1 christos
4510 1.1 christos dynobj = htab->etab.dynobj;
4511 1.1 christos
4512 1.1.1.2 christos sgot = htab->sgot;
4513 1.1.1.2 christos /* A broken linker script might have discarded the dynamic sections.
4514 1.1.1.2 christos Catch this here so that we do not seg-fault later on. */
4515 1.1.1.2 christos if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4516 1.1.1.2 christos return FALSE;
4517 1.1.1.2 christos
4518 1.1.1.2 christos sdyn = bfd_get_linker_section (dynobj, ".dynamic");
4519 1.1 christos
4520 1.1 christos if (htab->etab.dynamic_sections_created)
4521 1.1 christos {
4522 1.1 christos Elf32_External_Dyn *dyncon, *dynconend;
4523 1.1 christos
4524 1.1 christos if (sdyn == NULL)
4525 1.1 christos abort ();
4526 1.1 christos
4527 1.1 christos dyncon = (Elf32_External_Dyn *) sdyn->contents;
4528 1.1 christos dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
4529 1.1 christos for (; dyncon < dynconend; dyncon++)
4530 1.1 christos {
4531 1.1 christos Elf_Internal_Dyn dyn;
4532 1.1 christos asection *s;
4533 1.1 christos
4534 1.1 christos bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4535 1.1 christos
4536 1.1 christos switch (dyn.d_tag)
4537 1.1 christos {
4538 1.1 christos default:
4539 1.1 christos continue;
4540 1.1 christos
4541 1.1 christos case DT_PLTGOT:
4542 1.1 christos /* Use PLTGOT to set the GOT register. */
4543 1.1 christos dyn.d_un.d_ptr = elf_gp (output_bfd);
4544 1.1 christos break;
4545 1.1 christos
4546 1.1 christos case DT_JMPREL:
4547 1.1 christos s = htab->srelplt;
4548 1.1 christos dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
4549 1.1 christos break;
4550 1.1 christos
4551 1.1 christos case DT_PLTRELSZ:
4552 1.1 christos s = htab->srelplt;
4553 1.1 christos dyn.d_un.d_val = s->size;
4554 1.1 christos break;
4555 1.1 christos
4556 1.1 christos case DT_RELASZ:
4557 1.1 christos /* Don't count procedure linkage table relocs in the
4558 1.1 christos overall reloc count. */
4559 1.1 christos s = htab->srelplt;
4560 1.1 christos if (s == NULL)
4561 1.1 christos continue;
4562 1.1 christos dyn.d_un.d_val -= s->size;
4563 1.1 christos break;
4564 1.1 christos
4565 1.1 christos case DT_RELA:
4566 1.1 christos /* We may not be using the standard ELF linker script.
4567 1.1 christos If .rela.plt is the first .rela section, we adjust
4568 1.1 christos DT_RELA to not include it. */
4569 1.1 christos s = htab->srelplt;
4570 1.1 christos if (s == NULL)
4571 1.1 christos continue;
4572 1.1 christos if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
4573 1.1 christos continue;
4574 1.1 christos dyn.d_un.d_ptr += s->size;
4575 1.1 christos break;
4576 1.1 christos }
4577 1.1 christos
4578 1.1 christos bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
4579 1.1 christos }
4580 1.1 christos }
4581 1.1 christos
4582 1.1.1.2 christos if (sgot != NULL && sgot->size != 0)
4583 1.1 christos {
4584 1.1 christos /* Fill in the first entry in the global offset table.
4585 1.1 christos We use it to point to our dynamic section, if we have one. */
4586 1.1 christos bfd_put_32 (output_bfd,
4587 1.1 christos sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
4588 1.1.1.2 christos sgot->contents);
4589 1.1 christos
4590 1.1 christos /* The second entry is reserved for use by the dynamic linker. */
4591 1.1.1.2 christos memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
4592 1.1 christos
4593 1.1 christos /* Set .got entry size. */
4594 1.1.1.2 christos elf_section_data (sgot->output_section)
4595 1.1 christos ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
4596 1.1 christos }
4597 1.1 christos
4598 1.1 christos if (htab->splt != NULL && htab->splt->size != 0)
4599 1.1 christos {
4600 1.1.1.5 christos /* Set plt entry size to 0 instead of PLT_ENTRY_SIZE, since we add the
4601 1.1.1.5 christos plt stubs and as such the section does not hold a table of fixed-size
4602 1.1.1.5 christos entries. */
4603 1.1.1.5 christos elf_section_data (htab->splt->output_section)->this_hdr.sh_entsize = 0;
4604 1.1 christos
4605 1.1 christos if (htab->need_plt_stub)
4606 1.1 christos {
4607 1.1 christos /* Set up the .plt stub. */
4608 1.1 christos memcpy (htab->splt->contents
4609 1.1 christos + htab->splt->size - sizeof (plt_stub),
4610 1.1 christos plt_stub, sizeof (plt_stub));
4611 1.1 christos
4612 1.1 christos if ((htab->splt->output_offset
4613 1.1 christos + htab->splt->output_section->vma
4614 1.1 christos + htab->splt->size)
4615 1.1.1.2 christos != (sgot->output_offset
4616 1.1.1.2 christos + sgot->output_section->vma))
4617 1.1 christos {
4618 1.1 christos (*_bfd_error_handler)
4619 1.1 christos (_(".got section not immediately after .plt section"));
4620 1.1 christos return FALSE;
4621 1.1 christos }
4622 1.1 christos }
4623 1.1 christos }
4624 1.1 christos
4625 1.1 christos return TRUE;
4626 1.1 christos }
4627 1.1 christos
4628 1.1 christos /* Called when writing out an object file to decide the type of a
4629 1.1 christos symbol. */
4630 1.1 christos static int
4631 1.1 christos elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
4632 1.1 christos {
4633 1.1 christos if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4634 1.1 christos return STT_PARISC_MILLI;
4635 1.1 christos else
4636 1.1 christos return type;
4637 1.1 christos }
4638 1.1 christos
4639 1.1 christos /* Misc BFD support code. */
4640 1.1 christos #define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4641 1.1 christos #define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
4642 1.1 christos #define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
4643 1.1 christos #define elf_info_to_howto elf_hppa_info_to_howto
4644 1.1 christos #define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
4645 1.1 christos
4646 1.1 christos /* Stuff for the BFD linker. */
4647 1.1 christos #define bfd_elf32_bfd_final_link elf32_hppa_final_link
4648 1.1 christos #define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
4649 1.1 christos #define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
4650 1.1 christos #define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
4651 1.1 christos #define elf_backend_check_relocs elf32_hppa_check_relocs
4652 1.1 christos #define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4653 1.1 christos #define elf_backend_fake_sections elf_hppa_fake_sections
4654 1.1 christos #define elf_backend_relocate_section elf32_hppa_relocate_section
4655 1.1 christos #define elf_backend_hide_symbol elf32_hppa_hide_symbol
4656 1.1 christos #define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4657 1.1 christos #define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4658 1.1 christos #define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
4659 1.1 christos #define elf_backend_init_index_section _bfd_elf_init_1_index_section
4660 1.1 christos #define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4661 1.1 christos #define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
4662 1.1 christos #define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4663 1.1 christos #define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
4664 1.1 christos #define elf_backend_object_p elf32_hppa_object_p
4665 1.1 christos #define elf_backend_final_write_processing elf_hppa_final_write_processing
4666 1.1 christos #define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
4667 1.1 christos #define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
4668 1.1 christos #define elf_backend_action_discarded elf_hppa_action_discarded
4669 1.1 christos
4670 1.1 christos #define elf_backend_can_gc_sections 1
4671 1.1 christos #define elf_backend_can_refcount 1
4672 1.1 christos #define elf_backend_plt_alignment 2
4673 1.1 christos #define elf_backend_want_got_plt 0
4674 1.1 christos #define elf_backend_plt_readonly 0
4675 1.1 christos #define elf_backend_want_plt_sym 0
4676 1.1 christos #define elf_backend_got_header_size 8
4677 1.1 christos #define elf_backend_rela_normal 1
4678 1.1 christos
4679 1.1.1.4 christos #define TARGET_BIG_SYM hppa_elf32_vec
4680 1.1 christos #define TARGET_BIG_NAME "elf32-hppa"
4681 1.1 christos #define ELF_ARCH bfd_arch_hppa
4682 1.1 christos #define ELF_TARGET_ID HPPA32_ELF_DATA
4683 1.1 christos #define ELF_MACHINE_CODE EM_PARISC
4684 1.1 christos #define ELF_MAXPAGESIZE 0x1000
4685 1.1 christos #define ELF_OSABI ELFOSABI_HPUX
4686 1.1 christos #define elf32_bed elf32_hppa_hpux_bed
4687 1.1 christos
4688 1.1 christos #include "elf32-target.h"
4689 1.1 christos
4690 1.1 christos #undef TARGET_BIG_SYM
4691 1.1.1.4 christos #define TARGET_BIG_SYM hppa_elf32_linux_vec
4692 1.1 christos #undef TARGET_BIG_NAME
4693 1.1 christos #define TARGET_BIG_NAME "elf32-hppa-linux"
4694 1.1 christos #undef ELF_OSABI
4695 1.1.1.2 christos #define ELF_OSABI ELFOSABI_GNU
4696 1.1 christos #undef elf32_bed
4697 1.1 christos #define elf32_bed elf32_hppa_linux_bed
4698 1.1 christos
4699 1.1 christos #include "elf32-target.h"
4700 1.1 christos
4701 1.1 christos #undef TARGET_BIG_SYM
4702 1.1.1.4 christos #define TARGET_BIG_SYM hppa_elf32_nbsd_vec
4703 1.1 christos #undef TARGET_BIG_NAME
4704 1.1 christos #define TARGET_BIG_NAME "elf32-hppa-netbsd"
4705 1.1 christos #undef ELF_OSABI
4706 1.1 christos #define ELF_OSABI ELFOSABI_NETBSD
4707 1.1 christos #undef elf32_bed
4708 1.1 christos #define elf32_bed elf32_hppa_netbsd_bed
4709 1.1 christos
4710 1.1 christos #include "elf32-target.h"
4711