gdb:
[deliverable/binutils-gdb.git] / bfd / elf32-hppa.c
CommitLineData
252b5132 1/* BFD back-end for HP PA-RISC ELF files.
e5094212 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001,
7686d77d 3 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
4fbb74a6 4 Free Software Foundation, Inc.
252b5132 5
30667bf3 6 Original code by
252b5132
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7 Center for Software Science
8 Department of Computer Science
9 University of Utah
30667bf3 10 Largely rewritten by Alan Modra <alan@linuxcare.com.au>
9b52905e
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11 Naming cleanup by Carlos O'Donell <carlos@systemhalted.org>
12 TLS support written by Randolph Chung <tausq@debian.org>
13
ae9a127f 14 This file is part of BFD, the Binary File Descriptor library.
252b5132 15
ae9a127f
NC
16 This program is free software; you can redistribute it and/or modify
17 it under the terms of the GNU General Public License as published by
cd123cb7 18 the Free Software Foundation; either version 3 of the License, or
ae9a127f 19 (at your option) any later version.
252b5132 20
ae9a127f
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21 This program is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 GNU General Public License for more details.
252b5132 25
ae9a127f
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26 You should have received a copy of the GNU General Public License
27 along with this program; if not, write to the Free Software
cd123cb7
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28 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
29 MA 02110-1301, USA. */
252b5132 30
252b5132 31#include "sysdep.h"
3db64b00 32#include "bfd.h"
252b5132
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33#include "libbfd.h"
34#include "elf-bfd.h"
9e103c9c
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35#include "elf/hppa.h"
36#include "libhppa.h"
37#include "elf32-hppa.h"
38#define ARCH_SIZE 32
edd21aca 39#include "elf32-hppa.h"
189c6563 40#include "elf-hppa.h"
9e103c9c 41
74d1c347
AM
42/* In order to gain some understanding of code in this file without
43 knowing all the intricate details of the linker, note the
44 following:
45
46 Functions named elf32_hppa_* are called by external routines, other
47 functions are only called locally. elf32_hppa_* functions appear
48 in this file more or less in the order in which they are called
49 from external routines. eg. elf32_hppa_check_relocs is called
50 early in the link process, elf32_hppa_finish_dynamic_sections is
51 one of the last functions. */
52
edd21aca 53/* We use two hash tables to hold information for linking PA ELF objects.
252b5132
RH
54
55 The first is the elf32_hppa_link_hash_table which is derived
56 from the standard ELF linker hash table. We use this as a place to
57 attach other hash tables and static information.
58
59 The second is the stub hash table which is derived from the
60 base BFD hash table. The stub hash table holds the information
30667bf3
AM
61 necessary to build the linker stubs during a link.
62
63 There are a number of different stubs generated by the linker.
64
65 Long branch stub:
66 : ldil LR'X,%r1
67 : be,n RR'X(%sr4,%r1)
68
69 PIC long branch stub:
70 : b,l .+8,%r1
3ee1d854
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71 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
72 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
30667bf3
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73
74 Import stub to call shared library routine from normal object file
75 (single sub-space version)
3ee1d854
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76 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
77 : ldw RR'lt_ptr+ltoff(%r1),%r21
46fe4e66 78 : bv %r0(%r21)
3ee1d854 79 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
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80
81 Import stub to call shared library routine from shared library
82 (single sub-space version)
3ee1d854
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83 : addil LR'ltoff,%r19 ; get procedure entry point
84 : ldw RR'ltoff(%r1),%r21
46fe4e66 85 : bv %r0(%r21)
3ee1d854 86 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
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87
88 Import stub to call shared library routine from normal object file
89 (multiple sub-space support)
3ee1d854
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90 : addil LR'lt_ptr+ltoff,%dp ; get procedure entry point
91 : ldw RR'lt_ptr+ltoff(%r1),%r21
92 : ldw RR'lt_ptr+ltoff+4(%r1),%r19 ; get new dlt value.
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93 : ldsid (%r21),%r1
94 : mtsp %r1,%sr0
95 : be 0(%sr0,%r21) ; branch to target
96 : stw %rp,-24(%sp) ; save rp
97
98 Import stub to call shared library routine from shared library
99 (multiple sub-space support)
3ee1d854
AM
100 : addil LR'ltoff,%r19 ; get procedure entry point
101 : ldw RR'ltoff(%r1),%r21
102 : ldw RR'ltoff+4(%r1),%r19 ; get new dlt value.
30667bf3
AM
103 : ldsid (%r21),%r1
104 : mtsp %r1,%sr0
105 : be 0(%sr0,%r21) ; branch to target
106 : stw %rp,-24(%sp) ; save rp
107
108 Export stub to return from shared lib routine (multiple sub-space support)
109 One of these is created for each exported procedure in a shared
110 library (and stored in the shared lib). Shared lib routines are
111 called via the first instruction in the export stub so that we can
112 do an inter-space return. Not required for single sub-space.
113 : bl,n X,%rp ; trap the return
114 : nop
115 : ldw -24(%sp),%rp ; restore the original rp
116 : ldsid (%rp),%r1
117 : mtsp %r1,%sr0
ae9a127f 118 : be,n 0(%sr0,%rp) ; inter-space return. */
30667bf3 119
875c0872
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120
121/* Variable names follow a coding style.
122 Please follow this (Apps Hungarian) style:
123
124 Structure/Variable Prefix
125 elf_link_hash_table "etab"
126 elf_link_hash_entry "eh"
127
128 elf32_hppa_link_hash_table "htab"
129 elf32_hppa_link_hash_entry "hh"
130
131 bfd_hash_table "btab"
132 bfd_hash_entry "bh"
133
134 bfd_hash_table containing stubs "bstab"
135 elf32_hppa_stub_hash_entry "hsh"
136
137 elf32_hppa_dyn_reloc_entry "hdh"
138
139 Always remember to use GNU Coding Style. */
140
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141#define PLT_ENTRY_SIZE 8
142#define GOT_ENTRY_SIZE 4
143#define ELF_DYNAMIC_INTERPRETER "/lib/ld.so.1"
144
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145static const bfd_byte plt_stub[] =
146{
147 0x0e, 0x80, 0x10, 0x96, /* 1: ldw 0(%r20),%r22 */
148 0xea, 0xc0, 0xc0, 0x00, /* bv %r0(%r22) */
149 0x0e, 0x88, 0x10, 0x95, /* ldw 4(%r20),%r21 */
150#define PLT_STUB_ENTRY (3*4)
151 0xea, 0x9f, 0x1f, 0xdd, /* b,l 1b,%r20 */
152 0xd6, 0x80, 0x1c, 0x1e, /* depi 0,31,2,%r20 */
153 0x00, 0xc0, 0xff, 0xee, /* 9: .word fixup_func */
154 0xde, 0xad, 0xbe, 0xef /* .word fixup_ltp */
155};
156
30667bf3 157/* Section name for stubs is the associated section name plus this
29942be8
NC
158 string. */
159#define STUB_SUFFIX ".stub"
30667bf3 160
98ceb8ce
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161/* We don't need to copy certain PC- or GP-relative dynamic relocs
162 into a shared object's dynamic section. All the relocs of the
163 limited class we are interested in, are absolute. */
164#ifndef RELATIVE_DYNRELOCS
165#define RELATIVE_DYNRELOCS 0
446f2863 166#define IS_ABSOLUTE_RELOC(r_type) 1
30667bf3
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167#endif
168
4fc8051d
AM
169/* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid
170 copying dynamic variables from a shared lib into an app's dynbss
171 section, and instead use a dynamic relocation to point into the
172 shared lib. */
173#define ELIMINATE_COPY_RELOCS 1
174
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175enum elf32_hppa_stub_type
176{
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177 hppa_stub_long_branch,
178 hppa_stub_long_branch_shared,
179 hppa_stub_import,
180 hppa_stub_import_shared,
181 hppa_stub_export,
182 hppa_stub_none
183};
184
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NC
185struct elf32_hppa_stub_hash_entry
186{
edd21aca 187 /* Base hash table entry structure. */
a63e02c7 188 struct bfd_hash_entry bh_root;
252b5132 189
edd21aca
AM
190 /* The stub section. */
191 asection *stub_sec;
192
193 /* Offset within stub_sec of the beginning of this stub. */
30667bf3 194 bfd_vma stub_offset;
252b5132
RH
195
196 /* Given the symbol's value and its section we can determine its final
197 value when building the stubs (so the stub knows where to jump. */
30667bf3 198 bfd_vma target_value;
252b5132 199 asection *target_section;
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AM
200
201 enum elf32_hppa_stub_type stub_type;
202
203 /* The symbol table entry, if any, that this was derived from. */
a63e02c7 204 struct elf32_hppa_link_hash_entry *hh;
30667bf3 205
25f72752
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206 /* Where this stub is being called from, or, in the case of combined
207 stub sections, the first input section in the group. */
208 asection *id_sec;
252b5132
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209};
210
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211struct elf32_hppa_link_hash_entry
212{
a63e02c7 213 struct elf_link_hash_entry eh;
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214
215 /* A pointer to the most recently used stub hash entry against this
216 symbol. */
a63e02c7 217 struct elf32_hppa_stub_hash_entry *hsh_cache;
30667bf3 218
30667bf3
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219 /* Used to count relocations for delayed sizing of relocation
220 sections. */
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221 struct elf32_hppa_dyn_reloc_entry
222 {
30667bf3 223 /* Next relocation in the chain. */
a63e02c7 224 struct elf32_hppa_dyn_reloc_entry *hdh_next;
30667bf3 225
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226 /* The input section of the reloc. */
227 asection *sec;
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228
229 /* Number of relocs copied in this section. */
230 bfd_size_type count;
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231
232#if RELATIVE_DYNRELOCS
233 /* Number of relative relocs copied for the input section. */
234 bfd_size_type relative_count;
235#endif
236 } *dyn_relocs;
30667bf3 237
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NC
238 enum
239 {
240 GOT_UNKNOWN = 0, GOT_NORMAL = 1, GOT_TLS_GD = 2, GOT_TLS_LDM = 4, GOT_TLS_IE = 8
241 } tls_type;
242
74d1c347
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243 /* Set if this symbol is used by a plabel reloc. */
244 unsigned int plabel:1;
30667bf3
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245};
246
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247struct elf32_hppa_link_hash_table
248{
252b5132 249 /* The main hash table. */
a63e02c7 250 struct elf_link_hash_table etab;
252b5132
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251
252 /* The stub hash table. */
a63e02c7 253 struct bfd_hash_table bstab;
252b5132 254
30667bf3
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255 /* Linker stub bfd. */
256 bfd *stub_bfd;
257
30667bf3 258 /* Linker call-backs. */
c39a58e6
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259 asection * (*add_stub_section) (const char *, asection *);
260 void (*layout_sections_again) (void);
30667bf3 261
25f72752
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262 /* Array to keep track of which stub sections have been created, and
263 information on stub grouping. */
9b52905e
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264 struct map_stub
265 {
25f72752
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266 /* This is the section to which stubs in the group will be
267 attached. */
268 asection *link_sec;
269 /* The stub section. */
270 asection *stub_sec;
25f72752 271 } *stub_group;
30667bf3 272
b4655ea9
AM
273 /* Assorted information used by elf32_hppa_size_stubs. */
274 unsigned int bfd_count;
275 int top_index;
276 asection **input_list;
277 Elf_Internal_Sym **all_local_syms;
278
30667bf3
AM
279 /* Short-cuts to get to dynamic linker sections. */
280 asection *sgot;
281 asection *srelgot;
282 asection *splt;
283 asection *srelplt;
284 asection *sdynbss;
285 asection *srelbss;
47d89dba 286
c46b7515
AM
287 /* Used during a final link to store the base of the text and data
288 segments so that we can perform SEGREL relocations. */
289 bfd_vma text_segment_base;
290 bfd_vma data_segment_base;
291
47d89dba
AM
292 /* Whether we support multiple sub-spaces for shared libs. */
293 unsigned int multi_subspace:1;
294
067fa4a6 295 /* Flags set when various size branches are detected. Used to
47d89dba
AM
296 select suitable defaults for the stub group size. */
297 unsigned int has_12bit_branch:1;
298 unsigned int has_17bit_branch:1;
067fa4a6 299 unsigned int has_22bit_branch:1;
47d89dba
AM
300
301 /* Set if we need a .plt stub to support lazy dynamic linking. */
302 unsigned int need_plt_stub:1;
ec338859 303
87d72d41
AM
304 /* Small local sym cache. */
305 struct sym_cache sym_cache;
9b52905e
NC
306
307 /* Data for LDM relocations. */
308 union
309 {
310 bfd_signed_vma refcount;
311 bfd_vma offset;
312 } tls_ldm_got;
252b5132
RH
313};
314
30667bf3
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315/* Various hash macros and functions. */
316#define hppa_link_hash_table(p) \
4dfe6ac6
NC
317 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
318 == HPPA32_ELF_DATA ? ((struct elf32_hppa_link_hash_table *) ((p)->hash)) : NULL)
252b5132 319
875c0872
DA
320#define hppa_elf_hash_entry(ent) \
321 ((struct elf32_hppa_link_hash_entry *)(ent))
322
323#define hppa_stub_hash_entry(ent) \
324 ((struct elf32_hppa_stub_hash_entry *)(ent))
325
30667bf3
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326#define hppa_stub_hash_lookup(table, string, create, copy) \
327 ((struct elf32_hppa_stub_hash_entry *) \
328 bfd_hash_lookup ((table), (string), (create), (copy)))
329
9b52905e
NC
330#define hppa_elf_local_got_tls_type(abfd) \
331 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
332
333#define hh_name(hh) \
334 (hh ? hh->eh.root.root.string : "<undef>")
335
336#define eh_name(eh) \
337 (eh ? eh->root.root.string : "<undef>")
338
252b5132
RH
339/* Assorted hash table functions. */
340
341/* Initialize an entry in the stub hash table. */
342
343static struct bfd_hash_entry *
c39a58e6
AM
344stub_hash_newfunc (struct bfd_hash_entry *entry,
345 struct bfd_hash_table *table,
346 const char *string)
252b5132 347{
252b5132
RH
348 /* Allocate the structure if it has not already been allocated by a
349 subclass. */
ebe50bae 350 if (entry == NULL)
30667bf3 351 {
ebe50bae
AM
352 entry = bfd_hash_allocate (table,
353 sizeof (struct elf32_hppa_stub_hash_entry));
354 if (entry == NULL)
355 return entry;
30667bf3 356 }
252b5132
RH
357
358 /* Call the allocation method of the superclass. */
ebe50bae
AM
359 entry = bfd_hash_newfunc (entry, table, string);
360 if (entry != NULL)
252b5132 361 {
875c0872 362 struct elf32_hppa_stub_hash_entry *hsh;
ebe50bae 363
252b5132 364 /* Initialize the local fields. */
875c0872
DA
365 hsh = hppa_stub_hash_entry (entry);
366 hsh->stub_sec = NULL;
367 hsh->stub_offset = 0;
368 hsh->target_value = 0;
369 hsh->target_section = NULL;
370 hsh->stub_type = hppa_stub_long_branch;
a63e02c7 371 hsh->hh = NULL;
875c0872 372 hsh->id_sec = NULL;
30667bf3
AM
373 }
374
ebe50bae 375 return entry;
30667bf3
AM
376}
377
30667bf3
AM
378/* Initialize an entry in the link hash table. */
379
380static struct bfd_hash_entry *
c39a58e6
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381hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
382 struct bfd_hash_table *table,
383 const char *string)
30667bf3 384{
30667bf3
AM
385 /* Allocate the structure if it has not already been allocated by a
386 subclass. */
ebe50bae 387 if (entry == NULL)
30667bf3 388 {
ebe50bae
AM
389 entry = bfd_hash_allocate (table,
390 sizeof (struct elf32_hppa_link_hash_entry));
391 if (entry == NULL)
392 return entry;
30667bf3
AM
393 }
394
395 /* Call the allocation method of the superclass. */
ebe50bae
AM
396 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
397 if (entry != NULL)
30667bf3 398 {
875c0872 399 struct elf32_hppa_link_hash_entry *hh;
ebe50bae 400
30667bf3 401 /* Initialize the local fields. */
875c0872 402 hh = hppa_elf_hash_entry (entry);
a63e02c7 403 hh->hsh_cache = NULL;
875c0872
DA
404 hh->dyn_relocs = NULL;
405 hh->plabel = 0;
9b52905e 406 hh->tls_type = GOT_UNKNOWN;
252b5132
RH
407 }
408
ebe50bae 409 return entry;
252b5132
RH
410}
411
252b5132
RH
412/* Create the derived linker hash table. The PA ELF port uses the derived
413 hash table to keep information specific to the PA ELF linker (without
414 using static variables). */
415
416static struct bfd_link_hash_table *
c39a58e6 417elf32_hppa_link_hash_table_create (bfd *abfd)
252b5132 418{
875c0872
DA
419 struct elf32_hppa_link_hash_table *htab;
420 bfd_size_type amt = sizeof (*htab);
252b5132 421
9b52905e 422 htab = bfd_malloc (amt);
875c0872 423 if (htab == NULL)
252b5132 424 return NULL;
edd21aca 425
66eb6687 426 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
4dfe6ac6
NC
427 sizeof (struct elf32_hppa_link_hash_entry),
428 HPPA32_ELF_DATA))
252b5132 429 {
875c0872 430 free (htab);
252b5132
RH
431 return NULL;
432 }
edd21aca
AM
433
434 /* Init the stub hash table too. */
66eb6687
AM
435 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
436 sizeof (struct elf32_hppa_stub_hash_entry)))
edd21aca
AM
437 return NULL;
438
875c0872
DA
439 htab->stub_bfd = NULL;
440 htab->add_stub_section = NULL;
441 htab->layout_sections_again = NULL;
442 htab->stub_group = NULL;
443 htab->sgot = NULL;
444 htab->srelgot = NULL;
445 htab->splt = NULL;
446 htab->srelplt = NULL;
447 htab->sdynbss = NULL;
448 htab->srelbss = NULL;
449 htab->text_segment_base = (bfd_vma) -1;
450 htab->data_segment_base = (bfd_vma) -1;
451 htab->multi_subspace = 0;
452 htab->has_12bit_branch = 0;
453 htab->has_17bit_branch = 0;
454 htab->has_22bit_branch = 0;
455 htab->need_plt_stub = 0;
87d72d41 456 htab->sym_cache.abfd = NULL;
9b52905e 457 htab->tls_ldm_got.refcount = 0;
875c0872 458
a63e02c7 459 return &htab->etab.root;
252b5132
RH
460}
461
e2d34d7d
DJ
462/* Free the derived linker hash table. */
463
464static void
875c0872 465elf32_hppa_link_hash_table_free (struct bfd_link_hash_table *btab)
e2d34d7d 466{
875c0872
DA
467 struct elf32_hppa_link_hash_table *htab
468 = (struct elf32_hppa_link_hash_table *) btab;
e2d34d7d 469
a63e02c7 470 bfd_hash_table_free (&htab->bstab);
875c0872 471 _bfd_generic_link_hash_table_free (btab);
e2d34d7d
DJ
472}
473
30667bf3
AM
474/* Build a name for an entry in the stub hash table. */
475
edd21aca 476static char *
c39a58e6
AM
477hppa_stub_name (const asection *input_section,
478 const asection *sym_sec,
875c0872
DA
479 const struct elf32_hppa_link_hash_entry *hh,
480 const Elf_Internal_Rela *rela)
edd21aca
AM
481{
482 char *stub_name;
dc810e39 483 bfd_size_type len;
edd21aca 484
875c0872 485 if (hh)
30667bf3 486 {
9b52905e 487 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
30667bf3
AM
488 stub_name = bfd_malloc (len);
489 if (stub_name != NULL)
9b52905e
NC
490 sprintf (stub_name, "%08x_%s+%x",
491 input_section->id & 0xffffffff,
492 hh_name (hh),
493 (int) rela->r_addend & 0xffffffff);
30667bf3
AM
494 }
495 else
edd21aca 496 {
30667bf3
AM
497 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
498 stub_name = bfd_malloc (len);
499 if (stub_name != NULL)
9b52905e
NC
500 sprintf (stub_name, "%08x_%x:%x+%x",
501 input_section->id & 0xffffffff,
502 sym_sec->id & 0xffffffff,
503 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
504 (int) rela->r_addend & 0xffffffff);
edd21aca
AM
505 }
506 return stub_name;
507}
252b5132 508
30667bf3
AM
509/* Look up an entry in the stub hash. Stub entries are cached because
510 creating the stub name takes a bit of time. */
511
512static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
513hppa_get_stub_entry (const asection *input_section,
514 const asection *sym_sec,
875c0872
DA
515 struct elf32_hppa_link_hash_entry *hh,
516 const Elf_Internal_Rela *rela,
c39a58e6 517 struct elf32_hppa_link_hash_table *htab)
252b5132 518{
a63e02c7 519 struct elf32_hppa_stub_hash_entry *hsh_entry;
25f72752
AM
520 const asection *id_sec;
521
522 /* If this input section is part of a group of sections sharing one
523 stub section, then use the id of the first section in the group.
524 Stub names need to include a section id, as there may well be
525 more than one stub used to reach say, printf, and we need to
526 distinguish between them. */
83c81bfe 527 id_sec = htab->stub_group[input_section->id].link_sec;
edd21aca 528
a63e02c7
DA
529 if (hh != NULL && hh->hsh_cache != NULL
530 && hh->hsh_cache->hh == hh
531 && hh->hsh_cache->id_sec == id_sec)
edd21aca 532 {
a63e02c7 533 hsh_entry = hh->hsh_cache;
30667bf3
AM
534 }
535 else
536 {
30667bf3 537 char *stub_name;
edd21aca 538
875c0872 539 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
30667bf3
AM
540 if (stub_name == NULL)
541 return NULL;
edd21aca 542
a63e02c7 543 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
b34976b6 544 stub_name, FALSE, FALSE);
875c0872 545 if (hh != NULL)
a63e02c7 546 hh->hsh_cache = hsh_entry;
30667bf3
AM
547
548 free (stub_name);
edd21aca 549 }
30667bf3 550
a63e02c7 551 return hsh_entry;
30667bf3
AM
552}
553
30667bf3
AM
554/* Add a new stub entry to the stub hash. Not all fields of the new
555 stub entry are initialised. */
556
557static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
558hppa_add_stub (const char *stub_name,
559 asection *section,
560 struct elf32_hppa_link_hash_table *htab)
30667bf3 561{
25f72752 562 asection *link_sec;
30667bf3 563 asection *stub_sec;
875c0872 564 struct elf32_hppa_stub_hash_entry *hsh;
edd21aca 565
83c81bfe
AM
566 link_sec = htab->stub_group[section->id].link_sec;
567 stub_sec = htab->stub_group[section->id].stub_sec;
30667bf3 568 if (stub_sec == NULL)
edd21aca 569 {
83c81bfe 570 stub_sec = htab->stub_group[link_sec->id].stub_sec;
30667bf3
AM
571 if (stub_sec == NULL)
572 {
d4c88bbb 573 size_t namelen;
dc810e39 574 bfd_size_type len;
30667bf3
AM
575 char *s_name;
576
d4c88bbb
AM
577 namelen = strlen (link_sec->name);
578 len = namelen + sizeof (STUB_SUFFIX);
83c81bfe 579 s_name = bfd_alloc (htab->stub_bfd, len);
30667bf3
AM
580 if (s_name == NULL)
581 return NULL;
582
d4c88bbb
AM
583 memcpy (s_name, link_sec->name, namelen);
584 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
83c81bfe 585 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
30667bf3
AM
586 if (stub_sec == NULL)
587 return NULL;
83c81bfe 588 htab->stub_group[link_sec->id].stub_sec = stub_sec;
30667bf3 589 }
83c81bfe 590 htab->stub_group[section->id].stub_sec = stub_sec;
edd21aca 591 }
252b5132 592
30667bf3 593 /* Enter this entry into the linker stub hash table. */
a63e02c7 594 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
b34976b6 595 TRUE, FALSE);
875c0872 596 if (hsh == NULL)
30667bf3 597 {
d003868e
AM
598 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
599 section->owner,
30667bf3
AM
600 stub_name);
601 return NULL;
edd21aca
AM
602 }
603
875c0872
DA
604 hsh->stub_sec = stub_sec;
605 hsh->stub_offset = 0;
606 hsh->id_sec = link_sec;
607 return hsh;
edd21aca
AM
608}
609
30667bf3
AM
610/* Determine the type of stub needed, if any, for a call. */
611
612static enum elf32_hppa_stub_type
c39a58e6 613hppa_type_of_stub (asection *input_sec,
875c0872
DA
614 const Elf_Internal_Rela *rela,
615 struct elf32_hppa_link_hash_entry *hh,
a252afa4
DA
616 bfd_vma destination,
617 struct bfd_link_info *info)
edd21aca 618{
edd21aca 619 bfd_vma location;
30667bf3
AM
620 bfd_vma branch_offset;
621 bfd_vma max_branch_offset;
622 unsigned int r_type;
623
875c0872 624 if (hh != NULL
a63e02c7
DA
625 && hh->eh.plt.offset != (bfd_vma) -1
626 && hh->eh.dynindx != -1
875c0872 627 && !hh->plabel
a252afa4 628 && (info->shared
a63e02c7
DA
629 || !hh->eh.def_regular
630 || hh->eh.root.type == bfd_link_hash_defweak))
30667bf3 631 {
067fa4a6
AM
632 /* We need an import stub. Decide between hppa_stub_import
633 and hppa_stub_import_shared later. */
30667bf3
AM
634 return hppa_stub_import;
635 }
edd21aca 636
30667bf3
AM
637 /* Determine where the call point is. */
638 location = (input_sec->output_offset
639 + input_sec->output_section->vma
875c0872 640 + rela->r_offset);
edd21aca 641
30667bf3 642 branch_offset = destination - location - 8;
875c0872 643 r_type = ELF32_R_TYPE (rela->r_info);
edd21aca 644
30667bf3
AM
645 /* Determine if a long branch stub is needed. parisc branch offsets
646 are relative to the second instruction past the branch, ie. +8
647 bytes on from the branch instruction location. The offset is
648 signed and counts in units of 4 bytes. */
649 if (r_type == (unsigned int) R_PARISC_PCREL17F)
9b52905e
NC
650 max_branch_offset = (1 << (17 - 1)) << 2;
651
30667bf3 652 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
9b52905e
NC
653 max_branch_offset = (1 << (12 - 1)) << 2;
654
25f72752 655 else /* R_PARISC_PCREL22F. */
9b52905e 656 max_branch_offset = (1 << (22 - 1)) << 2;
edd21aca 657
30667bf3 658 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
98ceb8ce
AM
659 return hppa_stub_long_branch;
660
30667bf3
AM
661 return hppa_stub_none;
662}
edd21aca 663
30667bf3
AM
664/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
665 IN_ARG contains the link info pointer. */
edd21aca 666
30667bf3
AM
667#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
668#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
edd21aca 669
30667bf3 670#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
3ee1d854 671#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
30667bf3 672#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
252b5132 673
3ee1d854
AM
674#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
675#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
30667bf3 676#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
3ee1d854 677#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
252b5132 678
3ee1d854
AM
679#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
680#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
edd21aca 681
30667bf3
AM
682#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
683#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
684#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
685#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
edd21aca 686
067fa4a6 687#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
30667bf3
AM
688#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
689#define NOP 0x08000240 /* nop */
690#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
691#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
692#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
edd21aca 693
30667bf3
AM
694#ifndef R19_STUBS
695#define R19_STUBS 1
696#endif
edd21aca 697
30667bf3
AM
698#if R19_STUBS
699#define LDW_R1_DLT LDW_R1_R19
700#else
701#define LDW_R1_DLT LDW_R1_DP
702#endif
edd21aca 703
b34976b6 704static bfd_boolean
875c0872 705hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
30667bf3 706{
875c0872 707 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 708 struct bfd_link_info *info;
83c81bfe 709 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
710 asection *stub_sec;
711 bfd *stub_bfd;
712 bfd_byte *loc;
713 bfd_vma sym_value;
74d1c347 714 bfd_vma insn;
8dea1268 715 bfd_vma off;
74d1c347 716 int val;
30667bf3 717 int size;
edd21aca 718
30667bf3 719 /* Massage our args to the form they really have. */
875c0872
DA
720 hsh = hppa_stub_hash_entry (bh);
721 info = (struct bfd_link_info *)in_arg;
30667bf3 722
83c81bfe 723 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
724 if (htab == NULL)
725 return FALSE;
726
875c0872 727 stub_sec = hsh->stub_sec;
edd21aca 728
30667bf3 729 /* Make a note of the offset within the stubs for this entry. */
875c0872
DA
730 hsh->stub_offset = stub_sec->size;
731 loc = stub_sec->contents + hsh->stub_offset;
252b5132 732
30667bf3
AM
733 stub_bfd = stub_sec->owner;
734
875c0872 735 switch (hsh->stub_type)
30667bf3
AM
736 {
737 case hppa_stub_long_branch:
738 /* Create the long branch. A long branch is formed with "ldil"
739 loading the upper bits of the target address into a register,
740 then branching with "be" which adds in the lower bits.
741 The "be" has its delay slot nullified. */
875c0872
DA
742 sym_value = (hsh->target_value
743 + hsh->target_section->output_offset
744 + hsh->target_section->output_section->vma);
30667bf3 745
c39a58e6 746 val = hppa_field_adjust (sym_value, 0, e_lrsel);
74d1c347 747 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
30667bf3
AM
748 bfd_put_32 (stub_bfd, insn, loc);
749
c39a58e6 750 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
74d1c347 751 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
752 bfd_put_32 (stub_bfd, insn, loc + 4);
753
30667bf3 754 size = 8;
edd21aca
AM
755 break;
756
30667bf3
AM
757 case hppa_stub_long_branch_shared:
758 /* Branches are relative. This is where we are going to. */
875c0872
DA
759 sym_value = (hsh->target_value
760 + hsh->target_section->output_offset
761 + hsh->target_section->output_section->vma);
30667bf3
AM
762
763 /* And this is where we are coming from, more or less. */
875c0872 764 sym_value -= (hsh->stub_offset
30667bf3
AM
765 + stub_sec->output_offset
766 + stub_sec->output_section->vma);
767
74d1c347 768 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
47d89dba 769 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
74d1c347 770 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
30667bf3
AM
771 bfd_put_32 (stub_bfd, insn, loc + 4);
772
47d89dba 773 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
74d1c347 774 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
775 bfd_put_32 (stub_bfd, insn, loc + 8);
776 size = 12;
777 break;
edd21aca 778
30667bf3
AM
779 case hppa_stub_import:
780 case hppa_stub_import_shared:
a63e02c7 781 off = hsh->hh->eh.plt.offset;
8dea1268 782 if (off >= (bfd_vma) -2)
49e9d0d3 783 abort ();
8dea1268
AM
784
785 off &= ~ (bfd_vma) 1;
786 sym_value = (off
83c81bfe
AM
787 + htab->splt->output_offset
788 + htab->splt->output_section->vma
789 - elf_gp (htab->splt->output_section->owner));
30667bf3
AM
790
791 insn = ADDIL_DP;
792#if R19_STUBS
875c0872 793 if (hsh->stub_type == hppa_stub_import_shared)
30667bf3
AM
794 insn = ADDIL_R19;
795#endif
c39a58e6 796 val = hppa_field_adjust (sym_value, 0, e_lrsel),
74d1c347 797 insn = hppa_rebuild_insn ((int) insn, val, 21);
30667bf3 798 bfd_put_32 (stub_bfd, insn, loc);
edd21aca 799
47d89dba
AM
800 /* It is critical to use lrsel/rrsel here because we are using
801 two different offsets (+0 and +4) from sym_value. If we use
802 lsel/rsel then with unfortunate sym_values we will round
803 sym_value+4 up to the next 2k block leading to a mis-match
804 between the lsel and rsel value. */
c39a58e6 805 val = hppa_field_adjust (sym_value, 0, e_rrsel);
74d1c347 806 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
30667bf3 807 bfd_put_32 (stub_bfd, insn, loc + 4);
252b5132 808
83c81bfe 809 if (htab->multi_subspace)
30667bf3 810 {
47d89dba 811 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 812 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 813 bfd_put_32 (stub_bfd, insn, loc + 8);
252b5132 814
74d1c347
AM
815 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
816 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
817 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
818 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
252b5132 819
30667bf3
AM
820 size = 28;
821 }
822 else
823 {
74d1c347 824 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
47d89dba 825 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 826 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 827 bfd_put_32 (stub_bfd, insn, loc + 12);
252b5132 828
30667bf3
AM
829 size = 16;
830 }
252b5132 831
30667bf3 832 break;
252b5132 833
30667bf3
AM
834 case hppa_stub_export:
835 /* Branches are relative. This is where we are going to. */
875c0872
DA
836 sym_value = (hsh->target_value
837 + hsh->target_section->output_offset
838 + hsh->target_section->output_section->vma);
252b5132 839
30667bf3 840 /* And this is where we are coming from. */
875c0872 841 sym_value -= (hsh->stub_offset
30667bf3
AM
842 + stub_sec->output_offset
843 + stub_sec->output_section->vma);
edd21aca 844
067fa4a6
AM
845 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
846 && (!htab->has_22bit_branch
847 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
30667bf3 848 {
edd21aca 849 (*_bfd_error_handler)
d003868e 850 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
875c0872 851 hsh->target_section->owner,
d003868e 852 stub_sec,
875c0872 853 (long) hsh->stub_offset,
a63e02c7 854 hsh->bh_root.string);
30667bf3 855 bfd_set_error (bfd_error_bad_value);
b34976b6 856 return FALSE;
252b5132 857 }
30667bf3 858
74d1c347 859 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
067fa4a6
AM
860 if (!htab->has_22bit_branch)
861 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
862 else
863 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
30667bf3
AM
864 bfd_put_32 (stub_bfd, insn, loc);
865
74d1c347
AM
866 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
867 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
868 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
869 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
870 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
30667bf3
AM
871
872 /* Point the function symbol at the stub. */
a63e02c7
DA
873 hsh->hh->eh.root.u.def.section = stub_sec;
874 hsh->hh->eh.root.u.def.value = stub_sec->size;
30667bf3
AM
875
876 size = 24;
877 break;
878
879 default:
880 BFD_FAIL ();
b34976b6 881 return FALSE;
252b5132
RH
882 }
883
eea6121a 884 stub_sec->size += size;
b34976b6 885 return TRUE;
252b5132
RH
886}
887
30667bf3
AM
888#undef LDIL_R1
889#undef BE_SR4_R1
890#undef BL_R1
891#undef ADDIL_R1
892#undef DEPI_R1
30667bf3
AM
893#undef LDW_R1_R21
894#undef LDW_R1_DLT
895#undef LDW_R1_R19
896#undef ADDIL_R19
897#undef LDW_R1_DP
898#undef LDSID_R21_R1
899#undef MTSP_R1
900#undef BE_SR0_R21
901#undef STW_RP
902#undef BV_R0_R21
903#undef BL_RP
904#undef NOP
905#undef LDW_RP
906#undef LDSID_RP_R1
907#undef BE_SR0_RP
252b5132 908
30667bf3
AM
909/* As above, but don't actually build the stub. Just bump offset so
910 we know stub section sizes. */
911
b34976b6 912static bfd_boolean
875c0872 913hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
252b5132 914{
875c0872 915 struct elf32_hppa_stub_hash_entry *hsh;
83c81bfe 916 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
917 int size;
918
919 /* Massage our args to the form they really have. */
875c0872 920 hsh = hppa_stub_hash_entry (bh);
c39a58e6 921 htab = in_arg;
30667bf3 922
875c0872 923 if (hsh->stub_type == hppa_stub_long_branch)
98ceb8ce 924 size = 8;
875c0872 925 else if (hsh->stub_type == hppa_stub_long_branch_shared)
30667bf3 926 size = 12;
875c0872 927 else if (hsh->stub_type == hppa_stub_export)
30667bf3 928 size = 24;
74d1c347 929 else /* hppa_stub_import or hppa_stub_import_shared. */
252b5132 930 {
83c81bfe 931 if (htab->multi_subspace)
30667bf3
AM
932 size = 28;
933 else
934 size = 16;
935 }
252b5132 936
875c0872 937 hsh->stub_sec->size += size;
b34976b6 938 return TRUE;
30667bf3 939}
252b5132 940
30667bf3
AM
941/* Return nonzero if ABFD represents an HPPA ELF32 file.
942 Additionally we set the default architecture and machine. */
943
b34976b6 944static bfd_boolean
c39a58e6 945elf32_hppa_object_p (bfd *abfd)
30667bf3 946{
24a5e751
L
947 Elf_Internal_Ehdr * i_ehdrp;
948 unsigned int flags;
252b5132 949
24a5e751
L
950 i_ehdrp = elf_elfheader (abfd);
951 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
952 {
9c55345c 953 /* GCC on hppa-linux produces binaries with OSABI=GNU,
6c21aa76 954 but the kernel produces corefiles with OSABI=SysV. */
9c55345c 955 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_GNU &&
6c21aa76 956 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
b34976b6 957 return FALSE;
24a5e751 958 }
225247f0
JT
959 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
960 {
961 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
962 but the kernel produces corefiles with OSABI=SysV. */
963 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
964 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
965 return FALSE;
966 }
24a5e751
L
967 else
968 {
969 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
b34976b6 970 return FALSE;
24a5e751
L
971 }
972
973 flags = i_ehdrp->e_flags;
30667bf3
AM
974 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
975 {
976 case EFA_PARISC_1_0:
977 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
978 case EFA_PARISC_1_1:
979 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
980 case EFA_PARISC_2_0:
981 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
982 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
983 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
984 }
b34976b6 985 return TRUE;
252b5132
RH
986}
987
30667bf3
AM
988/* Create the .plt and .got sections, and set up our hash table
989 short-cuts to various dynamic sections. */
990
b34976b6 991static bfd_boolean
c39a58e6 992elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
252b5132 993{
83c81bfe 994 struct elf32_hppa_link_hash_table *htab;
875c0872 995 struct elf_link_hash_entry *eh;
edd21aca 996
30667bf3 997 /* Don't try to create the .plt and .got twice. */
83c81bfe 998 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
999 if (htab == NULL)
1000 return FALSE;
83c81bfe 1001 if (htab->splt != NULL)
b34976b6 1002 return TRUE;
edd21aca 1003
30667bf3
AM
1004 /* Call the generic code to do most of the work. */
1005 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 1006 return FALSE;
252b5132 1007
83c81bfe
AM
1008 htab->splt = bfd_get_section_by_name (abfd, ".plt");
1009 htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt");
30667bf3 1010
83c81bfe 1011 htab->sgot = bfd_get_section_by_name (abfd, ".got");
64e77c6d 1012 htab->srelgot = bfd_get_section_by_name (abfd, ".rela.got");
edd21aca 1013
83c81bfe
AM
1014 htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss");
1015 htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss");
30667bf3 1016
b18e2ae5
AM
1017 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
1018 application, because __canonicalize_funcptr_for_compare needs it. */
875c0872
DA
1019 eh = elf_hash_table (info)->hgot;
1020 eh->forced_local = 0;
1021 eh->other = STV_DEFAULT;
1022 return bfd_elf_link_record_dynamic_symbol (info, eh);
30667bf3
AM
1023}
1024
ebe50bae
AM
1025/* Copy the extra info we tack onto an elf_link_hash_entry. */
1026
51b64d56 1027static void
fcfa13d2 1028elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
875c0872
DA
1029 struct elf_link_hash_entry *eh_dir,
1030 struct elf_link_hash_entry *eh_ind)
ebe50bae 1031{
875c0872 1032 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
ebe50bae 1033
875c0872
DA
1034 hh_dir = hppa_elf_hash_entry (eh_dir);
1035 hh_ind = hppa_elf_hash_entry (eh_ind);
ebe50bae 1036
875c0872 1037 if (hh_ind->dyn_relocs != NULL)
ebe50bae 1038 {
875c0872 1039 if (hh_dir->dyn_relocs != NULL)
bbd7ec4a 1040 {
875c0872
DA
1041 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1042 struct elf32_hppa_dyn_reloc_entry *hdh_p;
bbd7ec4a 1043
fcfa13d2 1044 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a 1045 list. Merge any entries against the same section. */
875c0872 1046 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
bbd7ec4a 1047 {
875c0872 1048 struct elf32_hppa_dyn_reloc_entry *hdh_q;
bbd7ec4a 1049
fcfa13d2
AM
1050 for (hdh_q = hh_dir->dyn_relocs;
1051 hdh_q != NULL;
1052 hdh_q = hdh_q->hdh_next)
875c0872 1053 if (hdh_q->sec == hdh_p->sec)
bbd7ec4a
AM
1054 {
1055#if RELATIVE_DYNRELOCS
875c0872 1056 hdh_q->relative_count += hdh_p->relative_count;
bbd7ec4a 1057#endif
875c0872 1058 hdh_q->count += hdh_p->count;
a63e02c7 1059 *hdh_pp = hdh_p->hdh_next;
bbd7ec4a
AM
1060 break;
1061 }
875c0872 1062 if (hdh_q == NULL)
a63e02c7 1063 hdh_pp = &hdh_p->hdh_next;
bbd7ec4a 1064 }
875c0872 1065 *hdh_pp = hh_dir->dyn_relocs;
bbd7ec4a
AM
1066 }
1067
875c0872
DA
1068 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1069 hh_ind->dyn_relocs = NULL;
ebe50bae 1070 }
ebe50bae 1071
4fc8051d 1072 if (ELIMINATE_COPY_RELOCS
875c0872
DA
1073 && eh_ind->root.type != bfd_link_hash_indirect
1074 && eh_dir->dynamic_adjusted)
f5385ebf
AM
1075 {
1076 /* If called to transfer flags for a weakdef during processing
1077 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1078 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
875c0872
DA
1079 eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
1080 eh_dir->ref_regular |= eh_ind->ref_regular;
1081 eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1082 eh_dir->needs_plt |= eh_ind->needs_plt;
f5385ebf 1083 }
4fc8051d 1084 else
9b52905e
NC
1085 {
1086 if (eh_ind->root.type == bfd_link_hash_indirect
1087 && eh_dir->got.refcount <= 0)
1088 {
1089 hh_dir->tls_type = hh_ind->tls_type;
1090 hh_ind->tls_type = GOT_UNKNOWN;
1091 }
1092
1093 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1094 }
1095}
1096
1097static int
1098elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1099 int r_type, int is_local ATTRIBUTE_UNUSED)
1100{
1101 /* For now we don't support linker optimizations. */
1102 return r_type;
ebe50bae
AM
1103}
1104
d45b7d74
DA
1105/* Return a pointer to the local GOT, PLT and TLS reference counts
1106 for ABFD. Returns NULL if the storage allocation fails. */
1107
1108static bfd_signed_vma *
1109hppa32_elf_local_refcounts (bfd *abfd)
1110{
1111 Elf_Internal_Shdr *symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
1112 bfd_signed_vma *local_refcounts;
1113
1114 local_refcounts = elf_local_got_refcounts (abfd);
1115 if (local_refcounts == NULL)
1116 {
1117 bfd_size_type size;
1118
1119 /* Allocate space for local GOT and PLT reference
1120 counts. Done this way to save polluting elf_obj_tdata
1121 with another target specific pointer. */
1122 size = symtab_hdr->sh_info;
1123 size *= 2 * sizeof (bfd_signed_vma);
1124 /* Add in space to store the local GOT TLS types. */
1125 size += symtab_hdr->sh_info;
1126 local_refcounts = bfd_zalloc (abfd, size);
1127 if (local_refcounts == NULL)
1128 return NULL;
1129 elf_local_got_refcounts (abfd) = local_refcounts;
1130 memset (hppa_elf_local_got_tls_type (abfd), GOT_UNKNOWN,
1131 symtab_hdr->sh_info);
1132 }
1133 return local_refcounts;
1134}
1135
1136
30667bf3 1137/* Look through the relocs for a section during the first phase, and
3ac8354b
AM
1138 calculate needed space in the global offset table, procedure linkage
1139 table, and dynamic reloc sections. At this point we haven't
1140 necessarily read all the input files. */
252b5132 1141
b34976b6 1142static bfd_boolean
c39a58e6
AM
1143elf32_hppa_check_relocs (bfd *abfd,
1144 struct bfd_link_info *info,
1145 asection *sec,
1146 const Elf_Internal_Rela *relocs)
252b5132 1147{
30667bf3 1148 Elf_Internal_Shdr *symtab_hdr;
875c0872
DA
1149 struct elf_link_hash_entry **eh_syms;
1150 const Elf_Internal_Rela *rela;
1151 const Elf_Internal_Rela *rela_end;
83c81bfe 1152 struct elf32_hppa_link_hash_table *htab;
30667bf3 1153 asection *sreloc;
9b52905e 1154 int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
30667bf3 1155
1049f94e 1156 if (info->relocatable)
b34976b6 1157 return TRUE;
30667bf3 1158
83c81bfe 1159 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1160 if (htab == NULL)
1161 return FALSE;
30667bf3 1162 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1163 eh_syms = elf_sym_hashes (abfd);
30667bf3 1164 sreloc = NULL;
30667bf3 1165
875c0872
DA
1166 rela_end = relocs + sec->reloc_count;
1167 for (rela = relocs; rela < rela_end; rela++)
30667bf3
AM
1168 {
1169 enum {
1170 NEED_GOT = 1,
1171 NEED_PLT = 2,
1172 NEED_DYNREL = 4,
98ceb8ce 1173 PLT_PLABEL = 8
30667bf3 1174 };
edd21aca 1175
30667bf3 1176 unsigned int r_symndx, r_type;
875c0872
DA
1177 struct elf32_hppa_link_hash_entry *hh;
1178 int need_entry = 0;
252b5132 1179
875c0872 1180 r_symndx = ELF32_R_SYM (rela->r_info);
252b5132 1181
30667bf3 1182 if (r_symndx < symtab_hdr->sh_info)
875c0872 1183 hh = NULL;
30667bf3 1184 else
f7c5057a 1185 {
875c0872 1186 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
a63e02c7
DA
1187 while (hh->eh.root.type == bfd_link_hash_indirect
1188 || hh->eh.root.type == bfd_link_hash_warning)
1189 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
f7c5057a 1190 }
252b5132 1191
875c0872 1192 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e 1193 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
252b5132 1194
30667bf3
AM
1195 switch (r_type)
1196 {
1197 case R_PARISC_DLTIND14F:
1198 case R_PARISC_DLTIND14R:
1199 case R_PARISC_DLTIND21L:
1200 /* This symbol requires a global offset table entry. */
1201 need_entry = NEED_GOT;
30667bf3
AM
1202 break;
1203
1204 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1205 case R_PARISC_PLABEL21L:
1206 case R_PARISC_PLABEL32:
74d1c347 1207 /* If the addend is non-zero, we break badly. */
875c0872 1208 if (rela->r_addend != 0)
49e9d0d3 1209 abort ();
74d1c347
AM
1210
1211 /* If we are creating a shared library, then we need to
1212 create a PLT entry for all PLABELs, because PLABELs with
1213 local symbols may be passed via a pointer to another
1214 object. Additionally, output a dynamic relocation
4dc86686 1215 pointing to the PLT entry.
875c0872 1216
4dc86686
AM
1217 For executables, the original 32-bit ABI allowed two
1218 different styles of PLABELs (function pointers): For
1219 global functions, the PLABEL word points into the .plt
1220 two bytes past a (function address, gp) pair, and for
1221 local functions the PLABEL points directly at the
1222 function. The magic +2 for the first type allows us to
1223 differentiate between the two. As you can imagine, this
1224 is a real pain when it comes to generating code to call
1225 functions indirectly or to compare function pointers.
1226 We avoid the mess by always pointing a PLABEL into the
1227 .plt, even for local functions. */
74d1c347 1228 need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
30667bf3
AM
1229 break;
1230
1231 case R_PARISC_PCREL12F:
83c81bfe 1232 htab->has_12bit_branch = 1;
067fa4a6
AM
1233 goto branch_common;
1234
30667bf3
AM
1235 case R_PARISC_PCREL17C:
1236 case R_PARISC_PCREL17F:
83c81bfe 1237 htab->has_17bit_branch = 1;
067fa4a6
AM
1238 goto branch_common;
1239
30667bf3 1240 case R_PARISC_PCREL22F:
067fa4a6
AM
1241 htab->has_22bit_branch = 1;
1242 branch_common:
47d89dba
AM
1243 /* Function calls might need to go through the .plt, and
1244 might require long branch stubs. */
875c0872 1245 if (hh == NULL)
30667bf3
AM
1246 {
1247 /* We know local syms won't need a .plt entry, and if
1248 they need a long branch stub we can't guarantee that
1249 we can reach the stub. So just flag an error later
1250 if we're doing a shared link and find we need a long
1251 branch stub. */
1252 continue;
1253 }
1254 else
1255 {
1256 /* Global symbols will need a .plt entry if they remain
1257 global, and in most cases won't need a long branch
1258 stub. Unfortunately, we have to cater for the case
1259 where a symbol is forced local by versioning, or due
1260 to symbolic linking, and we lose the .plt entry. */
98ceb8ce 1261 need_entry = NEED_PLT;
a63e02c7 1262 if (hh->eh.type == STT_PARISC_MILLI)
98ceb8ce 1263 need_entry = 0;
30667bf3
AM
1264 }
1265 break;
1266
36751eee 1267 case R_PARISC_SEGBASE: /* Used to set segment base. */
c46b7515 1268 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
30667bf3
AM
1269 case R_PARISC_PCREL14F: /* PC relative load/store. */
1270 case R_PARISC_PCREL14R:
1271 case R_PARISC_PCREL17R: /* External branches. */
1272 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
36751eee 1273 case R_PARISC_PCREL32:
30667bf3
AM
1274 /* We don't need to propagate the relocation if linking a
1275 shared object since these are section relative. */
1276 continue;
1277
1278 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1279 case R_PARISC_DPREL14R:
1280 case R_PARISC_DPREL21L:
1281 if (info->shared)
1282 {
1283 (*_bfd_error_handler)
d003868e
AM
1284 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1285 abfd,
30667bf3
AM
1286 elf_hppa_howto_table[r_type].name);
1287 bfd_set_error (bfd_error_bad_value);
b34976b6 1288 return FALSE;
30667bf3
AM
1289 }
1290 /* Fall through. */
1291
1292 case R_PARISC_DIR17F: /* Used for external branches. */
1293 case R_PARISC_DIR17R:
47d89dba
AM
1294 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1295 case R_PARISC_DIR14R:
30667bf3 1296 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
c46b7515 1297 case R_PARISC_DIR32: /* .word relocs. */
30667bf3
AM
1298 /* We may want to output a dynamic relocation later. */
1299 need_entry = NEED_DYNREL;
1300 break;
1301
1302 /* This relocation describes the C++ object vtable hierarchy.
1303 Reconstruct it for later use during GC. */
1304 case R_PARISC_GNU_VTINHERIT:
a63e02c7 1305 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
b34976b6 1306 return FALSE;
30667bf3
AM
1307 continue;
1308
1309 /* This relocation describes which C++ vtable entries are actually
1310 used. Record for later use during GC. */
1311 case R_PARISC_GNU_VTENTRY:
d17e0c6e
JB
1312 BFD_ASSERT (hh != NULL);
1313 if (hh != NULL
1314 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
b34976b6 1315 return FALSE;
30667bf3
AM
1316 continue;
1317
9b52905e
NC
1318 case R_PARISC_TLS_GD21L:
1319 case R_PARISC_TLS_GD14R:
1320 case R_PARISC_TLS_LDM21L:
1321 case R_PARISC_TLS_LDM14R:
1322 need_entry = NEED_GOT;
1323 break;
1324
1325 case R_PARISC_TLS_IE21L:
1326 case R_PARISC_TLS_IE14R:
1327 if (info->shared)
1328 info->flags |= DF_STATIC_TLS;
1329 need_entry = NEED_GOT;
1330 break;
1331
30667bf3
AM
1332 default:
1333 continue;
1334 }
1335
1336 /* Now carry out our orders. */
1337 if (need_entry & NEED_GOT)
1338 {
9b52905e
NC
1339 switch (r_type)
1340 {
1341 default:
1342 tls_type = GOT_NORMAL;
1343 break;
1344 case R_PARISC_TLS_GD21L:
1345 case R_PARISC_TLS_GD14R:
1346 tls_type |= GOT_TLS_GD;
1347 break;
1348 case R_PARISC_TLS_LDM21L:
1349 case R_PARISC_TLS_LDM14R:
1350 tls_type |= GOT_TLS_LDM;
1351 break;
1352 case R_PARISC_TLS_IE21L:
1353 case R_PARISC_TLS_IE14R:
1354 tls_type |= GOT_TLS_IE;
1355 break;
1356 }
1357
30667bf3 1358 /* Allocate space for a GOT entry, as well as a dynamic
25f72752 1359 relocation for this entry. */
83c81bfe 1360 if (htab->sgot == NULL)
30667bf3 1361 {
a63e02c7
DA
1362 if (htab->etab.dynobj == NULL)
1363 htab->etab.dynobj = abfd;
1364 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
b34976b6 1365 return FALSE;
30667bf3
AM
1366 }
1367
9b52905e
NC
1368 if (r_type == R_PARISC_TLS_LDM21L
1369 || r_type == R_PARISC_TLS_LDM14R)
4dfe6ac6 1370 htab->tls_ldm_got.refcount += 1;
30667bf3
AM
1371 else
1372 {
9b52905e
NC
1373 if (hh != NULL)
1374 {
1375 hh->eh.got.refcount += 1;
1376 old_tls_type = hh->tls_type;
1377 }
1378 else
1379 {
1380 bfd_signed_vma *local_got_refcounts;
1381
1382 /* This is a global offset table entry for a local symbol. */
d45b7d74 1383 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
9b52905e 1384 if (local_got_refcounts == NULL)
d45b7d74 1385 return FALSE;
9b52905e
NC
1386 local_got_refcounts[r_symndx] += 1;
1387
1388 old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1389 }
1390
1391 tls_type |= old_tls_type;
1392
1393 if (old_tls_type != tls_type)
1394 {
1395 if (hh != NULL)
1396 hh->tls_type = tls_type;
1397 else
1398 hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1399 }
1400
30667bf3
AM
1401 }
1402 }
1403
1404 if (need_entry & NEED_PLT)
1405 {
1406 /* If we are creating a shared library, and this is a reloc
1407 against a weak symbol or a global symbol in a dynamic
1408 object, then we will be creating an import stub and a
1409 .plt entry for the symbol. Similarly, on a normal link
1410 to symbols defined in a dynamic object we'll need the
1411 import stub and a .plt entry. We don't know yet whether
1412 the symbol is defined or not, so make an entry anyway and
1413 clean up later in adjust_dynamic_symbol. */
1414 if ((sec->flags & SEC_ALLOC) != 0)
1415 {
875c0872 1416 if (hh != NULL)
30667bf3 1417 {
a63e02c7
DA
1418 hh->eh.needs_plt = 1;
1419 hh->eh.plt.refcount += 1;
74d1c347 1420
36605136
AM
1421 /* If this .plt entry is for a plabel, mark it so
1422 that adjust_dynamic_symbol will keep the entry
1423 even if it appears to be local. */
74d1c347 1424 if (need_entry & PLT_PLABEL)
875c0872 1425 hh->plabel = 1;
74d1c347
AM
1426 }
1427 else if (need_entry & PLT_PLABEL)
1428 {
3ac8354b 1429 bfd_signed_vma *local_got_refcounts;
68fb2e56 1430 bfd_signed_vma *local_plt_refcounts;
74d1c347 1431
d45b7d74 1432 local_got_refcounts = hppa32_elf_local_refcounts (abfd);
74d1c347 1433 if (local_got_refcounts == NULL)
d45b7d74 1434 return FALSE;
68fb2e56
AM
1435 local_plt_refcounts = (local_got_refcounts
1436 + symtab_hdr->sh_info);
ebe50bae 1437 local_plt_refcounts[r_symndx] += 1;
30667bf3 1438 }
30667bf3
AM
1439 }
1440 }
1441
98ceb8ce 1442 if (need_entry & NEED_DYNREL)
30667bf3
AM
1443 {
1444 /* Flag this symbol as having a non-got, non-plt reference
1445 so that we generate copy relocs if it turns out to be
1446 dynamic. */
875c0872 1447 if (hh != NULL && !info->shared)
a63e02c7 1448 hh->eh.non_got_ref = 1;
30667bf3
AM
1449
1450 /* If we are creating a shared library then we need to copy
1451 the reloc into the shared library. However, if we are
1452 linking with -Bsymbolic, we need only copy absolute
1453 relocs or relocs against symbols that are not defined in
1454 an object we are including in the link. PC- or DP- or
1455 DLT-relative relocs against any local sym or global sym
1456 with DEF_REGULAR set, can be discarded. At this point we
1457 have not seen all the input files, so it is possible that
1458 DEF_REGULAR is not set now but will be set later (it is
1459 never cleared). We account for that possibility below by
98ceb8ce 1460 storing information in the dyn_relocs field of the
30667bf3
AM
1461 hash table entry.
1462
1463 A similar situation to the -Bsymbolic case occurs when
1464 creating shared libraries and symbol visibility changes
1465 render the symbol local.
1466
1467 As it turns out, all the relocs we will be creating here
1468 are absolute, so we cannot remove them on -Bsymbolic
1469 links or visibility changes anyway. A STUB_REL reloc
1470 is absolute too, as in that case it is the reloc in the
1471 stub we will be creating, rather than copying the PCREL
56882138
AM
1472 reloc in the branch.
1473
1474 If on the other hand, we are creating an executable, we
1475 may need to keep relocations for symbols satisfied by a
1476 dynamic library if we manage to avoid copy relocs for the
1477 symbol. */
446f2863
AM
1478 if ((info->shared
1479 && (sec->flags & SEC_ALLOC) != 0
1480 && (IS_ABSOLUTE_RELOC (r_type)
875c0872 1481 || (hh != NULL
446f2863 1482 && (!info->symbolic
a63e02c7
DA
1483 || hh->eh.root.type == bfd_link_hash_defweak
1484 || !hh->eh.def_regular))))
4fc8051d
AM
1485 || (ELIMINATE_COPY_RELOCS
1486 && !info->shared
446f2863 1487 && (sec->flags & SEC_ALLOC) != 0
875c0872 1488 && hh != NULL
a63e02c7
DA
1489 && (hh->eh.root.type == bfd_link_hash_defweak
1490 || !hh->eh.def_regular)))
30667bf3 1491 {
875c0872
DA
1492 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1493 struct elf32_hppa_dyn_reloc_entry **hdh_head;
ec338859 1494
30667bf3
AM
1495 /* Create a reloc section in dynobj and make room for
1496 this reloc. */
98ceb8ce 1497 if (sreloc == NULL)
30667bf3 1498 {
a63e02c7
DA
1499 if (htab->etab.dynobj == NULL)
1500 htab->etab.dynobj = abfd;
3ac8354b 1501
83bac4b0
NC
1502 sreloc = _bfd_elf_make_dynamic_reloc_section
1503 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1504
98ceb8ce 1505 if (sreloc == NULL)
30667bf3 1506 {
83bac4b0
NC
1507 bfd_set_error (bfd_error_bad_value);
1508 return FALSE;
30667bf3 1509 }
30667bf3
AM
1510 }
1511
98ceb8ce
AM
1512 /* If this is a global symbol, we count the number of
1513 relocations we need for this symbol. */
875c0872 1514 if (hh != NULL)
30667bf3 1515 {
875c0872 1516 hdh_head = &hh->dyn_relocs;
ec338859
AM
1517 }
1518 else
1519 {
1520 /* Track dynamic relocs needed for local syms too.
1521 We really need local syms available to do this
1522 easily. Oh well. */
875c0872 1523 asection *sr;
6edfbbad 1524 void *vpp;
87d72d41 1525 Elf_Internal_Sym *isym;
6edfbbad 1526
87d72d41
AM
1527 isym = bfd_sym_from_r_symndx (&htab->sym_cache,
1528 abfd, r_symndx);
1529 if (isym == NULL)
b34976b6 1530 return FALSE;
30667bf3 1531
87d72d41
AM
1532 sr = bfd_section_from_elf_index (abfd, isym->st_shndx);
1533 if (sr == NULL)
1534 sr = sec;
1535
6edfbbad
DJ
1536 vpp = &elf_section_data (sr)->local_dynrel;
1537 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
ec338859
AM
1538 }
1539
875c0872
DA
1540 hdh_p = *hdh_head;
1541 if (hdh_p == NULL || hdh_p->sec != sec)
ec338859 1542 {
a63e02c7 1543 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
875c0872 1544 if (hdh_p == NULL)
b34976b6 1545 return FALSE;
a63e02c7 1546 hdh_p->hdh_next = *hdh_head;
875c0872
DA
1547 *hdh_head = hdh_p;
1548 hdh_p->sec = sec;
1549 hdh_p->count = 0;
98ceb8ce 1550#if RELATIVE_DYNRELOCS
875c0872 1551 hdh_p->relative_count = 0;
98ceb8ce 1552#endif
ec338859 1553 }
98ceb8ce 1554
875c0872 1555 hdh_p->count += 1;
98ceb8ce 1556#if RELATIVE_DYNRELOCS
ec338859 1557 if (!IS_ABSOLUTE_RELOC (rtype))
875c0872 1558 hdh_p->relative_count += 1;
98ceb8ce 1559#endif
30667bf3
AM
1560 }
1561 }
1562 }
edd21aca 1563
b34976b6 1564 return TRUE;
edd21aca
AM
1565}
1566
30667bf3
AM
1567/* Return the section that should be marked against garbage collection
1568 for a given relocation. */
1569
1570static asection *
c39a58e6 1571elf32_hppa_gc_mark_hook (asection *sec,
07adf181 1572 struct bfd_link_info *info,
875c0872
DA
1573 Elf_Internal_Rela *rela,
1574 struct elf_link_hash_entry *hh,
c39a58e6 1575 Elf_Internal_Sym *sym)
30667bf3 1576{
875c0872 1577 if (hh != NULL)
07adf181
AM
1578 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1579 {
1580 case R_PARISC_GNU_VTINHERIT:
1581 case R_PARISC_GNU_VTENTRY:
1582 return NULL;
1583 }
30667bf3 1584
07adf181 1585 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
30667bf3
AM
1586}
1587
30667bf3
AM
1588/* Update the got and plt entry reference counts for the section being
1589 removed. */
edd21aca 1590
b34976b6 1591static bfd_boolean
c39a58e6
AM
1592elf32_hppa_gc_sweep_hook (bfd *abfd,
1593 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1594 asection *sec,
1595 const Elf_Internal_Rela *relocs)
edd21aca 1596{
30667bf3 1597 Elf_Internal_Shdr *symtab_hdr;
875c0872 1598 struct elf_link_hash_entry **eh_syms;
30667bf3 1599 bfd_signed_vma *local_got_refcounts;
74d1c347 1600 bfd_signed_vma *local_plt_refcounts;
875c0872 1601 const Elf_Internal_Rela *rela, *relend;
4dfe6ac6 1602 struct elf32_hppa_link_hash_table *htab;
30667bf3 1603
7dda2462
TG
1604 if (info->relocatable)
1605 return TRUE;
1606
4dfe6ac6
NC
1607 htab = hppa_link_hash_table (info);
1608 if (htab == NULL)
1609 return FALSE;
1610
ec338859 1611 elf_section_data (sec)->local_dynrel = NULL;
98ceb8ce 1612
30667bf3 1613 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1614 eh_syms = elf_sym_hashes (abfd);
30667bf3 1615 local_got_refcounts = elf_local_got_refcounts (abfd);
74d1c347
AM
1616 local_plt_refcounts = local_got_refcounts;
1617 if (local_plt_refcounts != NULL)
1618 local_plt_refcounts += symtab_hdr->sh_info;
30667bf3 1619
30667bf3 1620 relend = relocs + sec->reloc_count;
875c0872 1621 for (rela = relocs; rela < relend; rela++)
26e41594
AM
1622 {
1623 unsigned long r_symndx;
1624 unsigned int r_type;
875c0872 1625 struct elf_link_hash_entry *eh = NULL;
26e41594 1626
875c0872 1627 r_symndx = ELF32_R_SYM (rela->r_info);
26e41594
AM
1628 if (r_symndx >= symtab_hdr->sh_info)
1629 {
875c0872
DA
1630 struct elf32_hppa_link_hash_entry *hh;
1631 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1632 struct elf32_hppa_dyn_reloc_entry *hdh_p;
26e41594 1633
875c0872
DA
1634 eh = eh_syms[r_symndx - symtab_hdr->sh_info];
1635 while (eh->root.type == bfd_link_hash_indirect
1636 || eh->root.type == bfd_link_hash_warning)
1637 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
1638 hh = hppa_elf_hash_entry (eh);
26e41594 1639
a63e02c7 1640 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; hdh_pp = &hdh_p->hdh_next)
875c0872 1641 if (hdh_p->sec == sec)
26e41594
AM
1642 {
1643 /* Everything must go for SEC. */
a63e02c7 1644 *hdh_pp = hdh_p->hdh_next;
26e41594
AM
1645 break;
1646 }
1647 }
1648
875c0872 1649 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e
NC
1650 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, eh != NULL);
1651
26e41594
AM
1652 switch (r_type)
1653 {
1654 case R_PARISC_DLTIND14F:
1655 case R_PARISC_DLTIND14R:
1656 case R_PARISC_DLTIND21L:
9b52905e
NC
1657 case R_PARISC_TLS_GD21L:
1658 case R_PARISC_TLS_GD14R:
1659 case R_PARISC_TLS_IE21L:
1660 case R_PARISC_TLS_IE14R:
875c0872 1661 if (eh != NULL)
26e41594 1662 {
875c0872
DA
1663 if (eh->got.refcount > 0)
1664 eh->got.refcount -= 1;
26e41594
AM
1665 }
1666 else if (local_got_refcounts != NULL)
1667 {
1668 if (local_got_refcounts[r_symndx] > 0)
1669 local_got_refcounts[r_symndx] -= 1;
1670 }
1671 break;
98ceb8ce 1672
9b52905e
NC
1673 case R_PARISC_TLS_LDM21L:
1674 case R_PARISC_TLS_LDM14R:
4dfe6ac6 1675 htab->tls_ldm_got.refcount -= 1;
9b52905e
NC
1676 break;
1677
26e41594
AM
1678 case R_PARISC_PCREL12F:
1679 case R_PARISC_PCREL17C:
1680 case R_PARISC_PCREL17F:
1681 case R_PARISC_PCREL22F:
875c0872 1682 if (eh != NULL)
26e41594 1683 {
875c0872
DA
1684 if (eh->plt.refcount > 0)
1685 eh->plt.refcount -= 1;
26e41594
AM
1686 }
1687 break;
1688
1689 case R_PARISC_PLABEL14R:
1690 case R_PARISC_PLABEL21L:
1691 case R_PARISC_PLABEL32:
875c0872 1692 if (eh != NULL)
26e41594 1693 {
875c0872
DA
1694 if (eh->plt.refcount > 0)
1695 eh->plt.refcount -= 1;
26e41594
AM
1696 }
1697 else if (local_plt_refcounts != NULL)
1698 {
1699 if (local_plt_refcounts[r_symndx] > 0)
1700 local_plt_refcounts[r_symndx] -= 1;
1701 }
1702 break;
1703
1704 default:
1705 break;
1706 }
1707 }
252b5132 1708
b34976b6 1709 return TRUE;
252b5132
RH
1710}
1711
edfc032f
AM
1712/* Support for core dump NOTE sections. */
1713
1714static bfd_boolean
1715elf32_hppa_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
1716{
1717 int offset;
1718 size_t size;
1719
1720 switch (note->descsz)
1721 {
1722 default:
1723 return FALSE;
1724
1725 case 396: /* Linux/hppa */
1726 /* pr_cursig */
1727 elf_tdata (abfd)->core_signal = bfd_get_16 (abfd, note->descdata + 12);
1728
1729 /* pr_pid */
261b8d08 1730 elf_tdata (abfd)->core_lwpid = bfd_get_32 (abfd, note->descdata + 24);
edfc032f
AM
1731
1732 /* pr_reg */
1733 offset = 72;
1734 size = 320;
1735
1736 break;
1737 }
1738
1739 /* Make a ".reg/999" section. */
1740 return _bfd_elfcore_make_pseudosection (abfd, ".reg",
1741 size, note->descpos + offset);
1742}
1743
1744static bfd_boolean
1745elf32_hppa_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
1746{
1747 switch (note->descsz)
1748 {
1749 default:
1750 return FALSE;
1751
1752 case 124: /* Linux/hppa elf_prpsinfo. */
1753 elf_tdata (abfd)->core_program
1754 = _bfd_elfcore_strndup (abfd, note->descdata + 28, 16);
1755 elf_tdata (abfd)->core_command
1756 = _bfd_elfcore_strndup (abfd, note->descdata + 44, 80);
1757 }
1758
1759 /* Note that for some reason, a spurious space is tacked
1760 onto the end of the args in some (at least one anyway)
1761 implementations, so strip it off if it exists. */
1762 {
1763 char *command = elf_tdata (abfd)->core_command;
1764 int n = strlen (command);
1765
1766 if (0 < n && command[n - 1] == ' ')
1767 command[n - 1] = '\0';
1768 }
1769
1770 return TRUE;
1771}
1772
74d1c347
AM
1773/* Our own version of hide_symbol, so that we can keep plt entries for
1774 plabels. */
1775
1776static void
c39a58e6 1777elf32_hppa_hide_symbol (struct bfd_link_info *info,
875c0872 1778 struct elf_link_hash_entry *eh,
c39a58e6 1779 bfd_boolean force_local)
74d1c347 1780{
e5094212
AM
1781 if (force_local)
1782 {
875c0872
DA
1783 eh->forced_local = 1;
1784 if (eh->dynindx != -1)
e5094212 1785 {
875c0872 1786 eh->dynindx = -1;
e5094212 1787 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
875c0872 1788 eh->dynstr_index);
e5094212
AM
1789 }
1790 }
1791
4340287b
DA
1792 /* STT_GNU_IFUNC symbol must go through PLT. */
1793 if (! hppa_elf_hash_entry (eh)->plabel
1794 && eh->type != STT_GNU_IFUNC)
74d1c347 1795 {
875c0872 1796 eh->needs_plt = 0;
4340287b 1797 eh->plt = elf_hash_table (info)->init_plt_offset;
74d1c347
AM
1798 }
1799}
1800
30667bf3
AM
1801/* Adjust a symbol defined by a dynamic object and referenced by a
1802 regular object. The current definition is in some section of the
1803 dynamic object, but we're not including those sections. We have to
1804 change the definition to something the rest of the link can
1805 understand. */
252b5132 1806
b34976b6 1807static bfd_boolean
c39a58e6 1808elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1809 struct elf_link_hash_entry *eh)
252b5132 1810{
83c81bfe 1811 struct elf32_hppa_link_hash_table *htab;
875c0872 1812 asection *sec;
30667bf3
AM
1813
1814 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1815 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1816 if (eh->type == STT_FUNC
1817 || eh->needs_plt)
30667bf3 1818 {
4340287b
DA
1819 /* If the symbol is used by a plabel, we must allocate a PLT slot.
1820 The refcounts are not reliable when it has been hidden since
1821 hide_symbol can be called before the plabel flag is set. */
1822 if (hppa_elf_hash_entry (eh)->plabel
1823 && eh->plt.refcount <= 0)
1824 eh->plt.refcount = 1;
1825
875c0872
DA
1826 if (eh->plt.refcount <= 0
1827 || (eh->def_regular
1828 && eh->root.type != bfd_link_hash_defweak
1829 && ! hppa_elf_hash_entry (eh)->plabel
30667bf3
AM
1830 && (!info->shared || info->symbolic)))
1831 {
1832 /* The .plt entry is not needed when:
1833 a) Garbage collection has removed all references to the
1834 symbol, or
1835 b) We know for certain the symbol is defined in this
74d1c347
AM
1836 object, and it's not a weak definition, nor is the symbol
1837 used by a plabel relocation. Either this object is the
1838 application or we are doing a shared symbolic link. */
1839
875c0872
DA
1840 eh->plt.offset = (bfd_vma) -1;
1841 eh->needs_plt = 0;
30667bf3 1842 }
4dc86686 1843
b34976b6 1844 return TRUE;
30667bf3 1845 }
bbd7ec4a 1846 else
875c0872 1847 eh->plt.offset = (bfd_vma) -1;
edd21aca 1848
30667bf3
AM
1849 /* If this is a weak symbol, and there is a real definition, the
1850 processor independent code will have arranged for us to see the
1851 real definition first, and we can just use the same value. */
875c0872 1852 if (eh->u.weakdef != NULL)
edd21aca 1853 {
875c0872
DA
1854 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1855 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
49e9d0d3 1856 abort ();
875c0872
DA
1857 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1858 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
4fc8051d 1859 if (ELIMINATE_COPY_RELOCS)
875c0872 1860 eh->non_got_ref = eh->u.weakdef->non_got_ref;
b34976b6 1861 return TRUE;
30667bf3 1862 }
edd21aca 1863
30667bf3
AM
1864 /* This is a reference to a symbol defined by a dynamic object which
1865 is not a function. */
1866
1867 /* If we are creating a shared library, we must presume that the
1868 only references to the symbol are via the global offset table.
1869 For such cases we need not do anything here; the relocations will
1870 be handled correctly by relocate_section. */
1871 if (info->shared)
b34976b6 1872 return TRUE;
30667bf3
AM
1873
1874 /* If there are no references to this symbol that do not use the
1875 GOT, we don't need to generate a copy reloc. */
875c0872 1876 if (!eh->non_got_ref)
b34976b6 1877 return TRUE;
30667bf3 1878
4fc8051d 1879 if (ELIMINATE_COPY_RELOCS)
ebe50bae 1880 {
875c0872
DA
1881 struct elf32_hppa_link_hash_entry *hh;
1882 struct elf32_hppa_dyn_reloc_entry *hdh_p;
ebe50bae 1883
875c0872 1884 hh = hppa_elf_hash_entry (eh);
a63e02c7 1885 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
4fc8051d 1886 {
875c0872
DA
1887 sec = hdh_p->sec->output_section;
1888 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
4fc8051d
AM
1889 break;
1890 }
1891
1892 /* If we didn't find any dynamic relocs in read-only sections, then
1893 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
875c0872 1894 if (hdh_p == NULL)
4fc8051d 1895 {
875c0872 1896 eh->non_got_ref = 0;
4fc8051d
AM
1897 return TRUE;
1898 }
ebe50bae
AM
1899 }
1900
909272ee
AM
1901 if (eh->size == 0)
1902 {
1903 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1904 eh->root.root.string);
1905 return TRUE;
1906 }
1907
30667bf3
AM
1908 /* We must allocate the symbol in our .dynbss section, which will
1909 become part of the .bss section of the executable. There will be
1910 an entry for this symbol in the .dynsym section. The dynamic
1911 object will contain position independent code, so all references
1912 from the dynamic object to this symbol will go through the global
1913 offset table. The dynamic linker will use the .dynsym entry to
1914 determine the address it must put in the global offset table, so
1915 both the dynamic object and the regular object will refer to the
1916 same memory location for the variable. */
1917
3ac8354b 1918 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1919 if (htab == NULL)
1920 return FALSE;
30667bf3
AM
1921
1922 /* We must generate a COPY reloc to tell the dynamic linker to
1923 copy the initial value out of the dynamic object and into the
3ac8354b 1924 runtime process image. */
875c0872 1925 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0)
30667bf3 1926 {
eea6121a 1927 htab->srelbss->size += sizeof (Elf32_External_Rela);
875c0872 1928 eh->needs_copy = 1;
edd21aca 1929 }
252b5132 1930
875c0872 1931 sec = htab->sdynbss;
edd21aca 1932
027297b7 1933 return _bfd_elf_adjust_dynamic_copy (eh, sec);
252b5132
RH
1934}
1935
e5ee5df1 1936/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1937 ie. plabel entries. */
a8d02d66 1938
b34976b6 1939static bfd_boolean
875c0872 1940allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1941{
1942 struct bfd_link_info *info;
1943 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1944 struct elf32_hppa_link_hash_entry *hh;
1945 asection *sec;
a8d02d66 1946
875c0872 1947 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1948 return TRUE;
a8d02d66 1949
875c0872 1950 info = (struct bfd_link_info *) inf;
9b52905e 1951 hh = hppa_elf_hash_entry (eh);
a8d02d66 1952 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
1953 if (htab == NULL)
1954 return FALSE;
1955
a63e02c7 1956 if (htab->etab.dynamic_sections_created
875c0872 1957 && eh->plt.refcount > 0)
e5ee5df1
AM
1958 {
1959 /* Make sure this symbol is output as a dynamic symbol.
1960 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
1961 if (eh->dynindx == -1
1962 && !eh->forced_local
1963 && eh->type != STT_PARISC_MILLI)
a8d02d66 1964 {
875c0872 1965 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 1966 return FALSE;
e5ee5df1
AM
1967 }
1968
875c0872 1969 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh))
e5ee5df1 1970 {
067fa4a6
AM
1971 /* Allocate these later. From this point on, h->plabel
1972 means that the plt entry is only used by a plabel.
1973 We'll be using a normal plt entry for this symbol, so
1974 clear the plabel indicator. */
875c0872
DA
1975
1976 hh->plabel = 0;
e5ee5df1 1977 }
875c0872 1978 else if (hh->plabel)
e5ee5df1
AM
1979 {
1980 /* Make an entry in the .plt section for plabel references
1981 that won't have a .plt entry for other reasons. */
875c0872
DA
1982 sec = htab->splt;
1983 eh->plt.offset = sec->size;
1984 sec->size += PLT_ENTRY_SIZE;
a8d02d66
AM
1985 }
1986 else
e5ee5df1
AM
1987 {
1988 /* No .plt entry needed. */
875c0872
DA
1989 eh->plt.offset = (bfd_vma) -1;
1990 eh->needs_plt = 0;
e5ee5df1
AM
1991 }
1992 }
1993 else
1994 {
875c0872
DA
1995 eh->plt.offset = (bfd_vma) -1;
1996 eh->needs_plt = 0;
a8d02d66
AM
1997 }
1998
b34976b6 1999 return TRUE;
a8d02d66
AM
2000}
2001
4dc86686
AM
2002/* Allocate space in .plt, .got and associated reloc sections for
2003 global syms. */
2004
b34976b6 2005static bfd_boolean
875c0872 2006allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
2007{
2008 struct bfd_link_info *info;
83c81bfe 2009 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
2010 asection *sec;
2011 struct elf32_hppa_link_hash_entry *hh;
2012 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 2013
875c0872 2014 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 2015 return TRUE;
73a74a62 2016
c39a58e6 2017 info = inf;
83c81bfe 2018 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2019 if (htab == NULL)
2020 return FALSE;
2021
875c0872
DA
2022 hh = hppa_elf_hash_entry (eh);
2023
a63e02c7 2024 if (htab->etab.dynamic_sections_created
875c0872
DA
2025 && eh->plt.offset != (bfd_vma) -1
2026 && !hh->plabel
2027 && eh->plt.refcount > 0)
4dc86686 2028 {
e5ee5df1 2029 /* Make an entry in the .plt section. */
875c0872
DA
2030 sec = htab->splt;
2031 eh->plt.offset = sec->size;
2032 sec->size += PLT_ENTRY_SIZE;
3ac8354b 2033
e5ee5df1 2034 /* We also need to make an entry in the .rela.plt section. */
eea6121a 2035 htab->srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 2036 htab->need_plt_stub = 1;
4dc86686 2037 }
edd21aca 2038
875c0872 2039 if (eh->got.refcount > 0)
4dc86686 2040 {
446f2863
AM
2041 /* Make sure this symbol is output as a dynamic symbol.
2042 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2043 if (eh->dynindx == -1
2044 && !eh->forced_local
2045 && eh->type != STT_PARISC_MILLI)
446f2863 2046 {
875c0872 2047 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2048 return FALSE;
446f2863
AM
2049 }
2050
875c0872
DA
2051 sec = htab->sgot;
2052 eh->got.offset = sec->size;
2053 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2054 /* R_PARISC_TLS_GD* needs two GOT entries */
2055 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2056 sec->size += GOT_ENTRY_SIZE * 2;
2057 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2058 sec->size += GOT_ENTRY_SIZE;
a63e02c7 2059 if (htab->etab.dynamic_sections_created
ce757d15 2060 && (info->shared
875c0872
DA
2061 || (eh->dynindx != -1
2062 && !eh->forced_local)))
ce757d15 2063 {
eea6121a 2064 htab->srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2065 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2066 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2067 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2068 htab->srelgot->size += sizeof (Elf32_External_Rela);
ce757d15 2069 }
4dc86686
AM
2070 }
2071 else
875c0872 2072 eh->got.offset = (bfd_vma) -1;
30667bf3 2073
875c0872 2074 if (hh->dyn_relocs == NULL)
b34976b6 2075 return TRUE;
30667bf3 2076
98ceb8ce
AM
2077 /* If this is a -Bsymbolic shared link, then we need to discard all
2078 space allocated for dynamic pc-relative relocs against symbols
2079 defined in a regular object. For the normal shared case, discard
2080 space for relocs that have become local due to symbol visibility
2081 changes. */
2082 if (info->shared)
446f2863 2083 {
98ceb8ce 2084#if RELATIVE_DYNRELOCS
875c0872 2085 if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2086 {
875c0872 2087 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2088
875c0872 2089 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2090 {
875c0872
DA
2091 hdh_p->count -= hdh_p->relative_count;
2092 hdh_p->relative_count = 0;
2093 if (hdh_p->count == 0)
a63e02c7 2094 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2095 else
a63e02c7 2096 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2097 }
2098 }
2099#endif
4fc8051d
AM
2100
2101 /* Also discard relocs on undefined weak syms with non-default
2102 visibility. */
22d606e9 2103 if (hh->dyn_relocs != NULL
875c0872 2104 && eh->root.type == bfd_link_hash_undefweak)
22d606e9
AM
2105 {
2106 if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2107 hh->dyn_relocs = NULL;
2108
2109 /* Make sure undefined weak symbols are output as a dynamic
2110 symbol in PIEs. */
2111 else if (eh->dynindx == -1
2112 && !eh->forced_local)
2113 {
2114 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2115 return FALSE;
2116 }
2117 }
446f2863 2118 }
98ceb8ce 2119 else
30667bf3 2120 {
98ceb8ce
AM
2121 /* For the non-shared case, discard space for relocs against
2122 symbols which turn out to need copy relocs or are not
2123 dynamic. */
875c0872
DA
2124
2125 if (!eh->non_got_ref
4fc8051d 2126 && ((ELIMINATE_COPY_RELOCS
875c0872
DA
2127 && eh->def_dynamic
2128 && !eh->def_regular)
a63e02c7 2129 || (htab->etab.dynamic_sections_created
875c0872
DA
2130 && (eh->root.type == bfd_link_hash_undefweak
2131 || eh->root.type == bfd_link_hash_undefined))))
98ceb8ce
AM
2132 {
2133 /* Make sure this symbol is output as a dynamic symbol.
2134 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2135 if (eh->dynindx == -1
2136 && !eh->forced_local
2137 && eh->type != STT_PARISC_MILLI)
98ceb8ce 2138 {
875c0872 2139 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2140 return FALSE;
98ceb8ce
AM
2141 }
2142
2143 /* If that succeeded, we know we'll be keeping all the
2144 relocs. */
875c0872 2145 if (eh->dynindx != -1)
98ceb8ce
AM
2146 goto keep;
2147 }
446f2863 2148
875c0872 2149 hh->dyn_relocs = NULL;
b34976b6 2150 return TRUE;
98ceb8ce 2151
ec338859 2152 keep: ;
30667bf3 2153 }
30667bf3 2154
98ceb8ce 2155 /* Finally, allocate space. */
a63e02c7 2156 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2157 {
875c0872
DA
2158 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2159 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2160 }
30667bf3 2161
b34976b6 2162 return TRUE;
30667bf3 2163}
30667bf3 2164
d5c73c2f
AM
2165/* This function is called via elf_link_hash_traverse to force
2166 millicode symbols local so they do not end up as globals in the
2167 dynamic symbol table. We ought to be able to do this in
2168 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2169 for all dynamic symbols. Arguably, this is a bug in
2170 elf_adjust_dynamic_symbol. */
2171
b34976b6 2172static bfd_boolean
875c0872 2173clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2174 struct bfd_link_info *info)
d5c73c2f 2175{
875c0872
DA
2176 if (eh->type == STT_PARISC_MILLI
2177 && !eh->forced_local)
e0522e89 2178 {
875c0872 2179 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2180 }
b34976b6 2181 return TRUE;
d5c73c2f
AM
2182}
2183
98ceb8ce
AM
2184/* Find any dynamic relocs that apply to read-only sections. */
2185
b34976b6 2186static bfd_boolean
875c0872 2187readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2188{
875c0872
DA
2189 struct elf32_hppa_link_hash_entry *hh;
2190 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2191
875c0872 2192 hh = hppa_elf_hash_entry (eh);
a63e02c7 2193 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
98ceb8ce 2194 {
875c0872 2195 asection *sec = hdh_p->sec->output_section;
98ceb8ce 2196
875c0872 2197 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
98ceb8ce 2198 {
c39a58e6 2199 struct bfd_link_info *info = inf;
98ceb8ce
AM
2200
2201 info->flags |= DF_TEXTREL;
2202
2203 /* Not an error, just cut short the traversal. */
b34976b6 2204 return FALSE;
98ceb8ce
AM
2205 }
2206 }
b34976b6 2207 return TRUE;
98ceb8ce
AM
2208}
2209
30667bf3
AM
2210/* Set the sizes of the dynamic sections. */
2211
b34976b6 2212static bfd_boolean
c39a58e6
AM
2213elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2214 struct bfd_link_info *info)
30667bf3 2215{
83c81bfe 2216 struct elf32_hppa_link_hash_table *htab;
30667bf3 2217 bfd *dynobj;
98ceb8ce 2218 bfd *ibfd;
875c0872 2219 asection *sec;
b34976b6 2220 bfd_boolean relocs;
30667bf3 2221
83c81bfe 2222 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
2223 if (htab == NULL)
2224 return FALSE;
2225
a63e02c7 2226 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2227 if (dynobj == NULL)
2228 abort ();
30667bf3 2229
a63e02c7 2230 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2231 {
2232 /* Set the contents of the .interp section to the interpreter. */
893c4fe2 2233 if (info->executable)
30667bf3 2234 {
875c0872
DA
2235 sec = bfd_get_section_by_name (dynobj, ".interp");
2236 if (sec == NULL)
49e9d0d3 2237 abort ();
875c0872
DA
2238 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2239 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2240 }
74d1c347 2241
d5c73c2f 2242 /* Force millicode symbols local. */
a63e02c7 2243 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2244 clobber_millicode_symbols,
2245 info);
68fb2e56 2246 }
d5c73c2f 2247
98ceb8ce
AM
2248 /* Set up .got and .plt offsets for local syms, and space for local
2249 dynamic relocs. */
2250 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
68fb2e56
AM
2251 {
2252 bfd_signed_vma *local_got;
2253 bfd_signed_vma *end_local_got;
2254 bfd_signed_vma *local_plt;
2255 bfd_signed_vma *end_local_plt;
2256 bfd_size_type locsymcount;
2257 Elf_Internal_Shdr *symtab_hdr;
2258 asection *srel;
9b52905e 2259 char *local_tls_type;
74d1c347 2260
98ceb8ce 2261 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2262 continue;
4dc86686 2263
875c0872 2264 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2265 {
875c0872 2266 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2267
875c0872
DA
2268 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2269 elf_section_data (sec)->local_dynrel);
2270 hdh_p != NULL;
a63e02c7 2271 hdh_p = hdh_p->hdh_next)
98ceb8ce 2272 {
875c0872
DA
2273 if (!bfd_is_abs_section (hdh_p->sec)
2274 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2275 {
2276 /* Input section has been discarded, either because
2277 it is a copy of a linkonce section or due to
2278 linker script /DISCARD/, so we'll be discarding
2279 the relocs too. */
2280 }
875c0872 2281 else if (hdh_p->count != 0)
ec338859 2282 {
875c0872
DA
2283 srel = elf_section_data (hdh_p->sec)->sreloc;
2284 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2285 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2286 info->flags |= DF_TEXTREL;
ec338859 2287 }
98ceb8ce
AM
2288 }
2289 }
2290
2291 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2292 if (!local_got)
2293 continue;
74d1c347 2294
98ceb8ce 2295 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2296 locsymcount = symtab_hdr->sh_info;
2297 end_local_got = local_got + locsymcount;
9b52905e 2298 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
875c0872 2299 sec = htab->sgot;
83c81bfe 2300 srel = htab->srelgot;
68fb2e56
AM
2301 for (; local_got < end_local_got; ++local_got)
2302 {
2303 if (*local_got > 0)
4dc86686 2304 {
875c0872
DA
2305 *local_got = sec->size;
2306 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2307 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2308 sec->size += 2 * GOT_ENTRY_SIZE;
2309 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2310 sec->size += GOT_ENTRY_SIZE;
875c0872 2311 if (info->shared)
9b52905e
NC
2312 {
2313 srel->size += sizeof (Elf32_External_Rela);
2314 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2315 srel->size += 2 * sizeof (Elf32_External_Rela);
2316 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2317 srel->size += sizeof (Elf32_External_Rela);
2318 }
4dc86686 2319 }
68fb2e56
AM
2320 else
2321 *local_got = (bfd_vma) -1;
9b52905e
NC
2322
2323 ++local_tls_type;
68fb2e56 2324 }
74d1c347 2325
68fb2e56
AM
2326 local_plt = end_local_got;
2327 end_local_plt = local_plt + locsymcount;
a63e02c7 2328 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2329 {
2330 /* Won't be used, but be safe. */
2331 for (; local_plt < end_local_plt; ++local_plt)
2332 *local_plt = (bfd_vma) -1;
2333 }
2334 else
2335 {
875c0872 2336 sec = htab->splt;
83c81bfe 2337 srel = htab->srelplt;
74d1c347
AM
2338 for (; local_plt < end_local_plt; ++local_plt)
2339 {
2340 if (*local_plt > 0)
2341 {
875c0872
DA
2342 *local_plt = sec->size;
2343 sec->size += PLT_ENTRY_SIZE;
74d1c347 2344 if (info->shared)
eea6121a 2345 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2346 }
2347 else
2348 *local_plt = (bfd_vma) -1;
2349 }
2350 }
30667bf3 2351 }
9b52905e
NC
2352
2353 if (htab->tls_ldm_got.refcount > 0)
2354 {
2355 /* Allocate 2 got entries and 1 dynamic reloc for
2356 R_PARISC_TLS_DTPMOD32 relocs. */
2357 htab->tls_ldm_got.offset = htab->sgot->size;
2358 htab->sgot->size += (GOT_ENTRY_SIZE * 2);
2359 htab->srelgot->size += sizeof (Elf32_External_Rela);
2360 }
2361 else
2362 htab->tls_ldm_got.offset = -1;
30667bf3 2363
e5ee5df1
AM
2364 /* Do all the .plt entries without relocs first. The dynamic linker
2365 uses the last .plt reloc to find the end of the .plt (and hence
2366 the start of the .got) for lazy linking. */
a63e02c7 2367 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2368
98ceb8ce
AM
2369 /* Allocate global sym .plt and .got entries, and space for global
2370 sym dynamic relocs. */
a63e02c7 2371 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2372
2373 /* The check_relocs and adjust_dynamic_symbol entry points have
2374 determined the sizes of the various dynamic sections. Allocate
2375 memory for them. */
b34976b6 2376 relocs = FALSE;
875c0872 2377 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2378 {
875c0872 2379 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2380 continue;
2381
875c0872 2382 if (sec == htab->splt)
68fb2e56 2383 {
83c81bfe 2384 if (htab->need_plt_stub)
68fb2e56
AM
2385 {
2386 /* Make space for the plt stub at the end of the .plt
2387 section. We want this stub right at the end, up
2388 against the .got section. */
83c81bfe 2389 int gotalign = bfd_section_alignment (dynobj, htab->sgot);
875c0872 2390 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2391 bfd_size_type mask;
30667bf3 2392
68fb2e56 2393 if (gotalign > pltalign)
875c0872 2394 bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2395 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2396 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2397 }
2398 }
c456f082
AM
2399 else if (sec == htab->sgot
2400 || sec == htab->sdynbss)
68fb2e56 2401 ;
0112cd26 2402 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2403 {
875c0872 2404 if (sec->size != 0)
30667bf3 2405 {
4e12ff7f
AM
2406 /* Remember whether there are any reloc sections other
2407 than .rela.plt. */
875c0872 2408 if (sec != htab->srelplt)
b34976b6 2409 relocs = TRUE;
47d89dba 2410
30667bf3
AM
2411 /* We use the reloc_count field as a counter if we need
2412 to copy relocs into the output file. */
875c0872 2413 sec->reloc_count = 0;
30667bf3
AM
2414 }
2415 }
30667bf3
AM
2416 else
2417 {
2418 /* It's not one of our sections, so don't allocate space. */
2419 continue;
2420 }
2421
875c0872 2422 if (sec->size == 0)
30667bf3
AM
2423 {
2424 /* If we don't need this section, strip it from the
2425 output file. This is mostly to handle .rela.bss and
2426 .rela.plt. We must create both sections in
2427 create_dynamic_sections, because they must be created
2428 before the linker maps input sections to output
2429 sections. The linker does that before
2430 adjust_dynamic_symbol is called, and it is that
2431 function which decides whether anything needs to go
2432 into these sections. */
875c0872 2433 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2434 continue;
2435 }
2436
c456f082
AM
2437 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2438 continue;
2439
30667bf3
AM
2440 /* Allocate memory for the section contents. Zero it, because
2441 we may not fill in all the reloc sections. */
875c0872 2442 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2443 if (sec->contents == NULL)
b34976b6 2444 return FALSE;
30667bf3
AM
2445 }
2446
a63e02c7 2447 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2448 {
2449 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2450 actually has nothing to do with the PLT, it is how we
2451 communicate the LTP value of a load module to the dynamic
2452 linker. */
dc810e39 2453#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2454 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2455
2456 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2457 return FALSE;
30667bf3
AM
2458
2459 /* Add some entries to the .dynamic section. We fill in the
2460 values later, in elf32_hppa_finish_dynamic_sections, but we
2461 must add the entries now so that we get the correct size for
2462 the .dynamic section. The DT_DEBUG entry is filled in by the
2463 dynamic linker and used by the debugger. */
3c27d551 2464 if (info->executable)
30667bf3 2465 {
dc810e39 2466 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2467 return FALSE;
30667bf3
AM
2468 }
2469
eea6121a 2470 if (htab->srelplt->size != 0)
30667bf3 2471 {
dc810e39
AM
2472 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2473 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2474 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2475 return FALSE;
30667bf3
AM
2476 }
2477
2478 if (relocs)
2479 {
dc810e39
AM
2480 if (!add_dynamic_entry (DT_RELA, 0)
2481 || !add_dynamic_entry (DT_RELASZ, 0)
2482 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2483 return FALSE;
30667bf3 2484
98ceb8ce
AM
2485 /* If any dynamic relocs apply to a read-only section,
2486 then we need a DT_TEXTREL entry. */
248866a8 2487 if ((info->flags & DF_TEXTREL) == 0)
a63e02c7 2488 elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
98ceb8ce
AM
2489
2490 if ((info->flags & DF_TEXTREL) != 0)
2491 {
2492 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2493 return FALSE;
98ceb8ce 2494 }
30667bf3
AM
2495 }
2496 }
dc810e39 2497#undef add_dynamic_entry
30667bf3 2498
b34976b6 2499 return TRUE;
30667bf3
AM
2500}
2501
30667bf3
AM
2502/* External entry points for sizing and building linker stubs. */
2503
b4655ea9
AM
2504/* Set up various things so that we can make a list of input sections
2505 for each output section included in the link. Returns -1 on error,
cedb70c5 2506 0 when no stubs will be needed, and 1 on success. */
30667bf3 2507
b4655ea9 2508int
c39a58e6 2509elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2510{
2511 bfd *input_bfd;
b4655ea9
AM
2512 unsigned int bfd_count;
2513 int top_id, top_index;
30667bf3 2514 asection *section;
25f72752 2515 asection **input_list, **list;
dc810e39 2516 bfd_size_type amt;
b4655ea9 2517 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2518
4dfe6ac6
NC
2519 if (htab == NULL)
2520 return -1;
2521
1badb539
AM
2522 /* Count the number of input BFDs and find the top input section id. */
2523 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3
AM
2524 input_bfd != NULL;
2525 input_bfd = input_bfd->link_next)
2526 {
2527 bfd_count += 1;
25f72752
AM
2528 for (section = input_bfd->sections;
2529 section != NULL;
2530 section = section->next)
2531 {
2532 if (top_id < section->id)
2533 top_id = section->id;
2534 }
30667bf3 2535 }
b4655ea9 2536 htab->bfd_count = bfd_count;
30667bf3 2537
dc810e39 2538 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2539 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2540 if (htab->stub_group == NULL)
b4655ea9 2541 return -1;
1badb539 2542
b4655ea9 2543 /* We can't use output_bfd->section_count here to find the top output
1badb539 2544 section index as some sections may have been removed, and
8423293d 2545 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2546 for (section = output_bfd->sections, top_index = 0;
2547 section != NULL;
2548 section = section->next)
2549 {
2550 if (top_index < section->index)
2551 top_index = section->index;
2552 }
2553
b4655ea9 2554 htab->top_index = top_index;
dc810e39 2555 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2556 input_list = bfd_malloc (amt);
b4655ea9 2557 htab->input_list = input_list;
25f72752 2558 if (input_list == NULL)
b4655ea9 2559 return -1;
25f72752 2560
1badb539
AM
2561 /* For sections we aren't interested in, mark their entries with a
2562 value we can check later. */
2563 list = input_list + top_index;
2564 do
2565 *list = bfd_abs_section_ptr;
2566 while (list-- != input_list);
2567
2568 for (section = output_bfd->sections;
2569 section != NULL;
2570 section = section->next)
2571 {
47d89dba 2572 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2573 input_list[section->index] = NULL;
2574 }
2575
b4655ea9
AM
2576 return 1;
2577}
2578
2579/* The linker repeatedly calls this function for each input section,
2580 in the order that input sections are linked into output sections.
2581 Build lists of input sections to determine groupings between which
2582 we may insert linker stubs. */
2583
2584void
c39a58e6 2585elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2586{
2587 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2588
4dfe6ac6
NC
2589 if (htab == NULL)
2590 return;
2591
b4655ea9 2592 if (isec->output_section->index <= htab->top_index)
25f72752 2593 {
b4655ea9
AM
2594 asection **list = htab->input_list + isec->output_section->index;
2595 if (*list != bfd_abs_section_ptr)
25f72752 2596 {
b4655ea9 2597 /* Steal the link_sec pointer for our list. */
83c81bfe 2598#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2599 /* This happens to make the list in reverse order,
2600 which is what we want. */
2601 PREV_SEC (isec) = *list;
2602 *list = isec;
25f72752
AM
2603 }
2604 }
b4655ea9 2605}
25f72752 2606
b4655ea9
AM
2607/* See whether we can group stub sections together. Grouping stub
2608 sections may result in fewer stubs. More importantly, we need to
2609 put all .init* and .fini* stubs at the beginning of the .init or
2610 .fini output sections respectively, because glibc splits the
2611 _init and _fini functions into multiple parts. Putting a stub in
2612 the middle of a function is not a good idea. */
2613
2614static void
c39a58e6
AM
2615group_sections (struct elf32_hppa_link_hash_table *htab,
2616 bfd_size_type stub_group_size,
2617 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2618{
2619 asection **list = htab->input_list + htab->top_index;
1badb539 2620 do
25f72752
AM
2621 {
2622 asection *tail = *list;
1badb539
AM
2623 if (tail == bfd_abs_section_ptr)
2624 continue;
25f72752
AM
2625 while (tail != NULL)
2626 {
2627 asection *curr;
2628 asection *prev;
2629 bfd_size_type total;
00b28bb0 2630 bfd_boolean big_sec;
25f72752
AM
2631
2632 curr = tail;
eea6121a 2633 total = tail->size;
00b28bb0
AM
2634 big_sec = total >= stub_group_size;
2635
25f72752
AM
2636 while ((prev = PREV_SEC (curr)) != NULL
2637 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2638 < stub_group_size))
25f72752
AM
2639 curr = prev;
2640
2641 /* OK, the size from the start of CURR to the end is less
a248e267 2642 than 240000 bytes and thus can be handled by one stub
25f72752 2643 section. (or the tail section is itself larger than
a248e267 2644 240000 bytes, in which case we may be toast.)
25f72752
AM
2645 We should really be keeping track of the total size of
2646 stubs added here, as stubs contribute to the final output
2647 section size. That's a little tricky, and this way will
a248e267
AM
2648 only break if stubs added total more than 22144 bytes, or
2649 2768 long branch stubs. It seems unlikely for more than
2650 2768 different functions to be called, especially from
2651 code only 240000 bytes long. This limit used to be
2652 250000, but c++ code tends to generate lots of little
2653 functions, and sometimes violated the assumption. */
25f72752
AM
2654 do
2655 {
2656 prev = PREV_SEC (tail);
2657 /* Set up this stub group. */
83c81bfe 2658 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2659 }
2660 while (tail != curr && (tail = prev) != NULL);
2661
a248e267 2662 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2663 bytes before the stub section can be handled by it too.
2664 Don't do this if we have a really large section after the
2665 stubs, as adding more stubs increases the chance that
2666 branches may not reach into the stub section. */
2667 if (!stubs_always_before_branch && !big_sec)
25f72752 2668 {
47d89dba
AM
2669 total = 0;
2670 while (prev != NULL
2671 && ((total += tail->output_offset - prev->output_offset)
2672 < stub_group_size))
2673 {
2674 tail = prev;
2675 prev = PREV_SEC (tail);
83c81bfe 2676 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2677 }
25f72752
AM
2678 }
2679 tail = prev;
2680 }
2681 }
b4655ea9
AM
2682 while (list-- != htab->input_list);
2683 free (htab->input_list);
1badb539 2684#undef PREV_SEC
b4655ea9
AM
2685}
2686
2687/* Read in all local syms for all input bfds, and create hash entries
2688 for export stubs if we are building a multi-subspace shared lib.
2689 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2690
2691static int
c39a58e6 2692get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2693{
2694 unsigned int bfd_indx;
2695 Elf_Internal_Sym *local_syms, **all_local_syms;
2696 int stub_changed = 0;
2697 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2698
4dfe6ac6
NC
2699 if (htab == NULL)
2700 return -1;
2701
30667bf3
AM
2702 /* We want to read in symbol extension records only once. To do this
2703 we need to read in the local symbols in parallel and save them for
2704 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2705 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2706 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2707 htab->all_local_syms = all_local_syms;
30667bf3 2708 if (all_local_syms == NULL)
b4655ea9 2709 return -1;
30667bf3
AM
2710
2711 /* Walk over all the input BFDs, swapping in local symbols.
2712 If we are creating a shared library, create hash entries for the
2713 export stubs. */
b4655ea9 2714 for (bfd_indx = 0;
30667bf3 2715 input_bfd != NULL;
25f72752 2716 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2717 {
2718 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2719
252b5132
RH
2720 /* We'll need the symbol table in a second. */
2721 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2722 if (symtab_hdr->sh_info == 0)
2723 continue;
2724
6cdc0ccc
AM
2725 /* We need an array of the local symbols attached to the input bfd. */
2726 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2727 if (local_syms == NULL)
edd21aca 2728 {
6cdc0ccc
AM
2729 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2730 symtab_hdr->sh_info, 0,
2731 NULL, NULL, NULL);
2732 /* Cache them for elf_link_input_bfd. */
2733 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2734 }
6cdc0ccc
AM
2735 if (local_syms == NULL)
2736 return -1;
edd21aca 2737
6cdc0ccc 2738 all_local_syms[bfd_indx] = local_syms;
edd21aca 2739
83c81bfe 2740 if (info->shared && htab->multi_subspace)
30667bf3 2741 {
875c0872
DA
2742 struct elf_link_hash_entry **eh_syms;
2743 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2744 unsigned int symcount;
2745
2746 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2747 - symtab_hdr->sh_info);
875c0872
DA
2748 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2749 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2750
2751 /* Look through the global syms for functions; We need to
2752 build export stubs for all globally visible functions. */
875c0872 2753 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2754 {
875c0872 2755 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2756
875c0872 2757 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2758
a63e02c7
DA
2759 while (hh->eh.root.type == bfd_link_hash_indirect
2760 || hh->eh.root.type == bfd_link_hash_warning)
2761 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2762
2763 /* At this point in the link, undefined syms have been
2764 resolved, so we need to check that the symbol was
2765 defined in this BFD. */
a63e02c7
DA
2766 if ((hh->eh.root.type == bfd_link_hash_defined
2767 || hh->eh.root.type == bfd_link_hash_defweak)
2768 && hh->eh.type == STT_FUNC
2769 && hh->eh.root.u.def.section->output_section != NULL
2770 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2771 == output_bfd)
a63e02c7
DA
2772 && hh->eh.root.u.def.section->owner == input_bfd
2773 && hh->eh.def_regular
2774 && !hh->eh.forced_local
2775 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2776 {
2777 asection *sec;
2778 const char *stub_name;
875c0872 2779 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2780
a63e02c7 2781 sec = hh->eh.root.u.def.section;
9b52905e 2782 stub_name = hh_name (hh);
a63e02c7 2783 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2784 stub_name,
b34976b6 2785 FALSE, FALSE);
875c0872 2786 if (hsh == NULL)
30667bf3 2787 {
875c0872
DA
2788 hsh = hppa_add_stub (stub_name, sec, htab);
2789 if (!hsh)
b4655ea9 2790 return -1;
30667bf3 2791
a63e02c7
DA
2792 hsh->target_value = hh->eh.root.u.def.value;
2793 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2794 hsh->stub_type = hppa_stub_export;
a63e02c7 2795 hsh->hh = hh;
30667bf3
AM
2796 stub_changed = 1;
2797 }
2798 else
2799 {
d003868e
AM
2800 (*_bfd_error_handler) (_("%B: duplicate export stub %s"),
2801 input_bfd,
8f615d07 2802 stub_name);
30667bf3
AM
2803 }
2804 }
2805 }
30667bf3
AM
2806 }
2807 }
edd21aca 2808
b4655ea9
AM
2809 return stub_changed;
2810}
2811
2812/* Determine and set the size of the stub section for a final link.
2813
2814 The basic idea here is to examine all the relocations looking for
2815 PC-relative calls to a target that is unreachable with a "bl"
2816 instruction. */
2817
b34976b6 2818bfd_boolean
c39a58e6
AM
2819elf32_hppa_size_stubs
2820 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2821 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2822 asection * (*add_stub_section) (const char *, asection *),
2823 void (*layout_sections_again) (void))
b4655ea9
AM
2824{
2825 bfd_size_type stub_group_size;
b34976b6
AM
2826 bfd_boolean stubs_always_before_branch;
2827 bfd_boolean stub_changed;
b4655ea9
AM
2828 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2829
4dfe6ac6
NC
2830 if (htab == NULL)
2831 return FALSE;
2832
b4655ea9
AM
2833 /* Stash our params away. */
2834 htab->stub_bfd = stub_bfd;
2835 htab->multi_subspace = multi_subspace;
2836 htab->add_stub_section = add_stub_section;
2837 htab->layout_sections_again = layout_sections_again;
2838 stubs_always_before_branch = group_size < 0;
2839 if (group_size < 0)
2840 stub_group_size = -group_size;
2841 else
2842 stub_group_size = group_size;
2843 if (stub_group_size == 1)
2844 {
2845 /* Default values. */
acc990f2
AM
2846 if (stubs_always_before_branch)
2847 {
2848 stub_group_size = 7680000;
2849 if (htab->has_17bit_branch || htab->multi_subspace)
2850 stub_group_size = 240000;
2851 if (htab->has_12bit_branch)
2852 stub_group_size = 7500;
2853 }
2854 else
2855 {
2856 stub_group_size = 6971392;
2857 if (htab->has_17bit_branch || htab->multi_subspace)
2858 stub_group_size = 217856;
2859 if (htab->has_12bit_branch)
2860 stub_group_size = 6808;
2861 }
b4655ea9
AM
2862 }
2863
2864 group_sections (htab, stub_group_size, stubs_always_before_branch);
2865
2866 switch (get_local_syms (output_bfd, info->input_bfds, info))
2867 {
2868 default:
2869 if (htab->all_local_syms)
2870 goto error_ret_free_local;
b34976b6 2871 return FALSE;
b4655ea9
AM
2872
2873 case 0:
b34976b6 2874 stub_changed = FALSE;
b4655ea9
AM
2875 break;
2876
2877 case 1:
b34976b6 2878 stub_changed = TRUE;
b4655ea9
AM
2879 break;
2880 }
2881
edd21aca
AM
2882 while (1)
2883 {
b4655ea9
AM
2884 bfd *input_bfd;
2885 unsigned int bfd_indx;
30667bf3
AM
2886 asection *stub_sec;
2887
25f72752 2888 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2889 input_bfd != NULL;
25f72752 2890 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2891 {
2892 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2893 asection *section;
2894 Elf_Internal_Sym *local_syms;
30667bf3
AM
2895
2896 /* We'll need the symbol table in a second. */
2897 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2898 if (symtab_hdr->sh_info == 0)
2899 continue;
2900
b4655ea9 2901 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2902
2903 /* Walk over each section attached to the input bfd. */
2904 for (section = input_bfd->sections;
2905 section != NULL;
25f72752 2906 section = section->next)
30667bf3 2907 {
30667bf3
AM
2908 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2909
2910 /* If there aren't any relocs, then there's nothing more
2911 to do. */
2912 if ((section->flags & SEC_RELOC) == 0
2913 || section->reloc_count == 0)
2914 continue;
2915
25f72752
AM
2916 /* If this section is a link-once section that will be
2917 discarded, then don't create any stubs. */
2918 if (section->output_section == NULL
2919 || section->output_section->owner != output_bfd)
2920 continue;
2921
1e2f5b6e
AM
2922 /* Get the relocs. */
2923 internal_relocs
c39a58e6 2924 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2925 info->keep_memory);
30667bf3 2926 if (internal_relocs == NULL)
1e2f5b6e 2927 goto error_ret_free_local;
30667bf3
AM
2928
2929 /* Now examine each relocation. */
2930 irela = internal_relocs;
2931 irelaend = irela + section->reloc_count;
2932 for (; irela < irelaend; irela++)
2933 {
2934 unsigned int r_type, r_indx;
2935 enum elf32_hppa_stub_type stub_type;
875c0872 2936 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2937 asection *sym_sec;
2938 bfd_vma sym_value;
2939 bfd_vma destination;
875c0872 2940 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2941 char *stub_name;
25f72752 2942 const asection *id_sec;
30667bf3
AM
2943
2944 r_type = ELF32_R_TYPE (irela->r_info);
2945 r_indx = ELF32_R_SYM (irela->r_info);
2946
2947 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2948 {
2949 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2950 error_ret_free_internal:
2951 if (elf_section_data (section)->relocs == NULL)
2952 free (internal_relocs);
2953 goto error_ret_free_local;
30667bf3
AM
2954 }
2955
2956 /* Only look for stubs on call instructions. */
2957 if (r_type != (unsigned int) R_PARISC_PCREL12F
2958 && r_type != (unsigned int) R_PARISC_PCREL17F
2959 && r_type != (unsigned int) R_PARISC_PCREL22F)
2960 continue;
2961
2962 /* Now determine the call target, its name, value,
2963 section. */
2964 sym_sec = NULL;
2965 sym_value = 0;
2966 destination = 0;
875c0872 2967 hh = NULL;
30667bf3
AM
2968 if (r_indx < symtab_hdr->sh_info)
2969 {
2970 /* It's a local symbol. */
2971 Elf_Internal_Sym *sym;
2972 Elf_Internal_Shdr *hdr;
4fbb74a6 2973 unsigned int shndx;
30667bf3
AM
2974
2975 sym = local_syms + r_indx;
30667bf3
AM
2976 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2977 sym_value = sym->st_value;
4fbb74a6
AM
2978 shndx = sym->st_shndx;
2979 if (shndx < elf_numsections (input_bfd))
2980 {
2981 hdr = elf_elfsections (input_bfd)[shndx];
2982 sym_sec = hdr->bfd_section;
2983 destination = (sym_value + irela->r_addend
2984 + sym_sec->output_offset
2985 + sym_sec->output_section->vma);
2986 }
30667bf3
AM
2987 }
2988 else
2989 {
2990 /* It's an external symbol. */
2991 int e_indx;
2992
2993 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2994 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2995
a63e02c7
DA
2996 while (hh->eh.root.type == bfd_link_hash_indirect
2997 || hh->eh.root.type == bfd_link_hash_warning)
2998 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2999
a63e02c7
DA
3000 if (hh->eh.root.type == bfd_link_hash_defined
3001 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 3002 {
a63e02c7
DA
3003 sym_sec = hh->eh.root.u.def.section;
3004 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
3005 if (sym_sec->output_section != NULL)
3006 destination = (sym_value + irela->r_addend
3007 + sym_sec->output_offset
3008 + sym_sec->output_section->vma);
3009 }
a63e02c7 3010 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a
AM
3011 {
3012 if (! info->shared)
3013 continue;
3014 }
a63e02c7 3015 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 3016 {
59c2e50f 3017 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 3018 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 3019 == STV_DEFAULT)
a63e02c7 3020 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
3021 continue;
3022 }
30667bf3
AM
3023 else
3024 {
3025 bfd_set_error (bfd_error_bad_value);
3026 goto error_ret_free_internal;
3027 }
3028 }
3029
3030 /* Determine what (if any) linker stub is needed. */
875c0872 3031 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 3032 destination, info);
30667bf3
AM
3033 if (stub_type == hppa_stub_none)
3034 continue;
3035
25f72752 3036 /* Support for grouping stub sections. */
83c81bfe 3037 id_sec = htab->stub_group[section->id].link_sec;
25f72752 3038
30667bf3 3039 /* Get the name of this stub. */
875c0872 3040 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
3041 if (!stub_name)
3042 goto error_ret_free_internal;
3043
a63e02c7 3044 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 3045 stub_name,
b34976b6 3046 FALSE, FALSE);
875c0872 3047 if (hsh != NULL)
30667bf3
AM
3048 {
3049 /* The proper stub has already been created. */
3050 free (stub_name);
3051 continue;
3052 }
3053
875c0872
DA
3054 hsh = hppa_add_stub (stub_name, section, htab);
3055 if (hsh == NULL)
30667bf3
AM
3056 {
3057 free (stub_name);
1e2f5b6e 3058 goto error_ret_free_internal;
30667bf3
AM
3059 }
3060
875c0872
DA
3061 hsh->target_value = sym_value;
3062 hsh->target_section = sym_sec;
3063 hsh->stub_type = stub_type;
30667bf3
AM
3064 if (info->shared)
3065 {
3066 if (stub_type == hppa_stub_import)
875c0872 3067 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 3068 else if (stub_type == hppa_stub_long_branch)
875c0872 3069 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 3070 }
a63e02c7 3071 hsh->hh = hh;
b34976b6 3072 stub_changed = TRUE;
30667bf3
AM
3073 }
3074
3075 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
3076 if (elf_section_data (section)->relocs == NULL)
3077 free (internal_relocs);
30667bf3
AM
3078 }
3079 }
3080
3081 if (!stub_changed)
3082 break;
3083
3084 /* OK, we've added some stubs. Find out the new size of the
3085 stub sections. */
83c81bfe 3086 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3087 stub_sec != NULL;
3088 stub_sec = stub_sec->next)
eea6121a 3089 stub_sec->size = 0;
74d1c347 3090
a63e02c7 3091 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3092
30667bf3 3093 /* Ask the linker to do its stuff. */
83c81bfe 3094 (*htab->layout_sections_again) ();
b34976b6 3095 stub_changed = FALSE;
30667bf3
AM
3096 }
3097
6cdc0ccc 3098 free (htab->all_local_syms);
b34976b6 3099 return TRUE;
30667bf3
AM
3100
3101 error_ret_free_local:
b4655ea9 3102 free (htab->all_local_syms);
b34976b6 3103 return FALSE;
30667bf3
AM
3104}
3105
30667bf3
AM
3106/* For a final link, this function is called after we have sized the
3107 stubs to provide a value for __gp. */
3108
b34976b6 3109bfd_boolean
c39a58e6 3110elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3111{
b4655ea9
AM
3112 struct bfd_link_hash_entry *h;
3113 asection *sec = NULL;
3114 bfd_vma gp_val = 0;
83c81bfe 3115 struct elf32_hppa_link_hash_table *htab;
30667bf3 3116
83c81bfe 3117 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3118 if (htab == NULL)
3119 return FALSE;
3120
a63e02c7 3121 h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
30667bf3 3122
df8634e3 3123 if (h != NULL
b4655ea9
AM
3124 && (h->type == bfd_link_hash_defined
3125 || h->type == bfd_link_hash_defweak))
30667bf3 3126 {
b4655ea9
AM
3127 gp_val = h->u.def.value;
3128 sec = h->u.def.section;
30667bf3
AM
3129 }
3130 else
3131 {
0eddce27
AM
3132 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3133 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3134
74d1c347
AM
3135 /* Choose to point our LTP at, in this order, one of .plt, .got,
3136 or .data, if these sections exist. In the case of choosing
3137 .plt try to make the LTP ideal for addressing anywhere in the
3138 .plt or .got with a 14 bit signed offset. Typically, the end
3139 of the .plt is the start of the .got, so choose .plt + 0x2000
3140 if either the .plt or .got is larger than 0x2000. If both
3141 the .plt and .got are smaller than 0x2000, choose the end of
3142 the .plt section. */
225247f0
JT
3143 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3144 ? NULL : splt;
74d1c347 3145 if (sec != NULL)
30667bf3 3146 {
eea6121a
AM
3147 gp_val = sec->size;
3148 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3149 {
3150 gp_val = 0x2000;
3151 }
3152 }
3153 else
3154 {
b4655ea9 3155 sec = sgot;
74d1c347
AM
3156 if (sec != NULL)
3157 {
225247f0
JT
3158 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3159 {
3160 /* We know we don't have a .plt. If .got is large,
3161 offset our LTP. */
3162 if (sec->size > 0x2000)
3163 gp_val = 0x2000;
3164 }
74d1c347
AM
3165 }
3166 else
3167 {
3168 /* No .plt or .got. Who cares what the LTP is? */
3169 sec = bfd_get_section_by_name (abfd, ".data");
3170 }
30667bf3 3171 }
df8634e3
AM
3172
3173 if (h != NULL)
3174 {
b4655ea9
AM
3175 h->type = bfd_link_hash_defined;
3176 h->u.def.value = gp_val;
df8634e3 3177 if (sec != NULL)
b4655ea9 3178 h->u.def.section = sec;
df8634e3 3179 else
b4655ea9 3180 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3181 }
30667bf3
AM
3182 }
3183
b32b5d6e 3184 if (sec != NULL && sec->output_section != NULL)
74d1c347
AM
3185 gp_val += sec->output_section->vma + sec->output_offset;
3186
3187 elf_gp (abfd) = gp_val;
b34976b6 3188 return TRUE;
30667bf3
AM
3189}
3190
30667bf3
AM
3191/* Build all the stubs associated with the current output file. The
3192 stubs are kept in a hash table attached to the main linker hash
3193 table. We also set up the .plt entries for statically linked PIC
3194 functions here. This function is called via hppaelf_finish in the
3195 linker. */
3196
b34976b6 3197bfd_boolean
c39a58e6 3198elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3199{
3200 asection *stub_sec;
3201 struct bfd_hash_table *table;
83c81bfe 3202 struct elf32_hppa_link_hash_table *htab;
30667bf3 3203
83c81bfe 3204 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3205 if (htab == NULL)
3206 return FALSE;
30667bf3 3207
83c81bfe 3208 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3209 stub_sec != NULL;
3210 stub_sec = stub_sec->next)
3211 {
dc810e39 3212 bfd_size_type size;
30667bf3
AM
3213
3214 /* Allocate memory to hold the linker stubs. */
eea6121a 3215 size = stub_sec->size;
c39a58e6 3216 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
30667bf3 3217 if (stub_sec->contents == NULL && size != 0)
b34976b6 3218 return FALSE;
eea6121a 3219 stub_sec->size = 0;
30667bf3
AM
3220 }
3221
3222 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3223 table = &htab->bstab;
30667bf3
AM
3224 bfd_hash_traverse (table, hppa_build_one_stub, info);
3225
b34976b6 3226 return TRUE;
30667bf3
AM
3227}
3228
9b52905e
NC
3229/* Return the base vma address which should be subtracted from the real
3230 address when resolving a dtpoff relocation.
3231 This is PT_TLS segment p_vaddr. */
3232
3233static bfd_vma
3234dtpoff_base (struct bfd_link_info *info)
3235{
3236 /* If tls_sec is NULL, we should have signalled an error already. */
3237 if (elf_hash_table (info)->tls_sec == NULL)
3238 return 0;
3239 return elf_hash_table (info)->tls_sec->vma;
3240}
3241
3242/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3243
3244static bfd_vma
3245tpoff (struct bfd_link_info *info, bfd_vma address)
3246{
3247 struct elf_link_hash_table *htab = elf_hash_table (info);
3248
3249 /* If tls_sec is NULL, we should have signalled an error already. */
3250 if (htab->tls_sec == NULL)
3251 return 0;
3252 /* hppa TLS ABI is variant I and static TLS block start just after
3253 tcbhead structure which has 2 pointer fields. */
3254 return (address - htab->tls_sec->vma
3255 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3256}
3257
c46b7515
AM
3258/* Perform a final link. */
3259
b34976b6 3260static bfd_boolean
c39a58e6 3261elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3262{
4dc86686 3263 /* Invoke the regular ELF linker to do all the work. */
c152c796 3264 if (!bfd_elf_final_link (abfd, info))
b34976b6 3265 return FALSE;
c46b7515
AM
3266
3267 /* If we're producing a final executable, sort the contents of the
985142a4 3268 unwind section. */
d9f40817
DA
3269 if (info->relocatable)
3270 return TRUE;
3271
46fe4e66 3272 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3273}
3274
3275/* Record the lowest address for the data and text segments. */
3276
3277static void
2ea37f1c 3278hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3279{
83c81bfe 3280 struct elf32_hppa_link_hash_table *htab;
c46b7515 3281
875c0872 3282 htab = (struct elf32_hppa_link_hash_table*) data;
4dfe6ac6
NC
3283 if (htab == NULL)
3284 return;
c46b7515
AM
3285
3286 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3287 {
2ea37f1c
NC
3288 bfd_vma value;
3289 Elf_Internal_Phdr *p;
3290
3291 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3292 BFD_ASSERT (p != NULL);
3293 value = p->p_vaddr;
c46b7515
AM
3294
3295 if ((section->flags & SEC_READONLY) != 0)
3296 {
83c81bfe
AM
3297 if (value < htab->text_segment_base)
3298 htab->text_segment_base = value;
c46b7515
AM
3299 }
3300 else
3301 {
83c81bfe
AM
3302 if (value < htab->data_segment_base)
3303 htab->data_segment_base = value;
c46b7515
AM
3304 }
3305 }
3306}
3307
30667bf3
AM
3308/* Perform a relocation as part of a final link. */
3309
3310static bfd_reloc_status_type
c39a58e6
AM
3311final_link_relocate (asection *input_section,
3312 bfd_byte *contents,
875c0872 3313 const Elf_Internal_Rela *rela,
c39a58e6
AM
3314 bfd_vma value,
3315 struct elf32_hppa_link_hash_table *htab,
3316 asection *sym_sec,
875c0872 3317 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3318 struct bfd_link_info *info)
30667bf3
AM
3319{
3320 int insn;
875c0872 3321 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3322 unsigned int orig_r_type = r_type;
30667bf3
AM
3323 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3324 int r_format = howto->bitsize;
3325 enum hppa_reloc_field_selector_type_alt r_field;
3326 bfd *input_bfd = input_section->owner;
875c0872 3327 bfd_vma offset = rela->r_offset;
30667bf3
AM
3328 bfd_vma max_branch_offset = 0;
3329 bfd_byte *hit_data = contents + offset;
875c0872 3330 bfd_signed_vma addend = rela->r_addend;
30667bf3 3331 bfd_vma location;
875c0872
DA
3332 struct elf32_hppa_stub_hash_entry *hsh = NULL;
3333 int val;
30667bf3
AM
3334
3335 if (r_type == R_PARISC_NONE)
3336 return bfd_reloc_ok;
3337
3338 insn = bfd_get_32 (input_bfd, hit_data);
3339
3340 /* Find out where we are and where we're going. */
3341 location = (offset +
3342 input_section->output_offset +
3343 input_section->output_section->vma);
3344
a252afa4
DA
3345 /* If we are not building a shared library, convert DLTIND relocs to
3346 DPREL relocs. */
3347 if (!info->shared)
3348 {
3349 switch (r_type)
4fc8051d
AM
3350 {
3351 case R_PARISC_DLTIND21L:
143bb599
DA
3352 case R_PARISC_TLS_GD21L:
3353 case R_PARISC_TLS_LDM21L:
3354 case R_PARISC_TLS_IE21L:
4fc8051d 3355 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3356 break;
3357
4fc8051d 3358 case R_PARISC_DLTIND14R:
143bb599
DA
3359 case R_PARISC_TLS_GD14R:
3360 case R_PARISC_TLS_LDM14R:
3361 case R_PARISC_TLS_IE14R:
4fc8051d 3362 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3363 break;
3364
4fc8051d
AM
3365 case R_PARISC_DLTIND14F:
3366 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3367 break;
3368 }
3369 }
3370
30667bf3
AM
3371 switch (r_type)
3372 {
3373 case R_PARISC_PCREL12F:
3374 case R_PARISC_PCREL17F:
3375 case R_PARISC_PCREL22F:
067fa4a6
AM
3376 /* If this call should go via the plt, find the import stub in
3377 the stub hash. */
30667bf3
AM
3378 if (sym_sec == NULL
3379 || sym_sec->output_section == NULL
875c0872 3380 || (hh != NULL
a63e02c7
DA
3381 && hh->eh.plt.offset != (bfd_vma) -1
3382 && hh->eh.dynindx != -1
875c0872 3383 && !hh->plabel
a252afa4 3384 && (info->shared
a63e02c7
DA
3385 || !hh->eh.def_regular
3386 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3387 {
875c0872
DA
3388 hsh = hppa_get_stub_entry (input_section, sym_sec,
3389 hh, rela, htab);
3390 if (hsh != NULL)
30667bf3 3391 {
875c0872
DA
3392 value = (hsh->stub_offset
3393 + hsh->stub_sec->output_offset
3394 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3395 addend = 0;
3396 }
875c0872 3397 else if (sym_sec == NULL && hh != NULL
a63e02c7 3398 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3399 {
db20fd76
AM
3400 /* It's OK if undefined weak. Calls to undefined weak
3401 symbols behave as if the "called" function
3402 immediately returns. We can thus call to a weak
3403 function without first checking whether the function
3404 is defined. */
30667bf3 3405 value = location;
db20fd76 3406 addend = 8;
30667bf3
AM
3407 }
3408 else
f09ebc7d 3409 return bfd_reloc_undefined;
30667bf3
AM
3410 }
3411 /* Fall thru. */
3412
3413 case R_PARISC_PCREL21L:
3414 case R_PARISC_PCREL17C:
3415 case R_PARISC_PCREL17R:
3416 case R_PARISC_PCREL14R:
3417 case R_PARISC_PCREL14F:
36751eee 3418 case R_PARISC_PCREL32:
30667bf3
AM
3419 /* Make it a pc relative offset. */
3420 value -= location;
3421 addend -= 8;
3422 break;
3423
3424 case R_PARISC_DPREL21L:
3425 case R_PARISC_DPREL14R:
3426 case R_PARISC_DPREL14F:
a252afa4
DA
3427 /* Convert instructions that use the linkage table pointer (r19) to
3428 instructions that use the global data pointer (dp). This is the
3429 most efficient way of using PIC code in an incomplete executable,
3430 but the user must follow the standard runtime conventions for
3431 accessing data for this to work. */
143bb599 3432 if (orig_r_type != r_type)
a252afa4 3433 {
143bb599
DA
3434 if (r_type == R_PARISC_DPREL21L)
3435 {
3436 /* GCC sometimes uses a register other than r19 for the
3437 operation, so we must convert any addil instruction
3438 that uses this relocation. */
3439 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3440 insn = ADDIL_DP;
3441 else
3442 /* We must have a ldil instruction. It's too hard to find
3443 and convert the associated add instruction, so issue an
3444 error. */
3445 (*_bfd_error_handler)
3446 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3447 input_bfd,
3448 input_section,
3449 (long) offset,
3450 howto->name,
3451 insn);
3452 }
3453 else if (r_type == R_PARISC_DPREL14F)
3454 {
3455 /* This must be a format 1 load/store. Change the base
3456 register to dp. */
3457 insn = (insn & 0xfc1ffff) | (27 << 21);
3458 }
a252afa4
DA
3459 }
3460
143bb599
DA
3461 /* For all the DP relative relocations, we need to examine the symbol's
3462 section. If it has no section or if it's a code section, then
3463 "data pointer relative" makes no sense. In that case we don't
3464 adjust the "value", and for 21 bit addil instructions, we change the
3465 source addend register from %dp to %r0. This situation commonly
3466 arises for undefined weak symbols and when a variable's "constness"
3467 is declared differently from the way the variable is defined. For
3468 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3469 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3470 {
3471 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3472 == (((int) OP_ADDIL << 26) | (27 << 21)))
3473 {
3474 insn &= ~ (0x1f << 21);
30667bf3
AM
3475 }
3476 /* Now try to make things easy for the dynamic linker. */
3477
3478 break;
3479 }
74d1c347 3480 /* Fall thru. */
30667bf3
AM
3481
3482 case R_PARISC_DLTIND21L:
3483 case R_PARISC_DLTIND14R:
3484 case R_PARISC_DLTIND14F:
143bb599
DA
3485 case R_PARISC_TLS_GD21L:
3486 case R_PARISC_TLS_LDM21L:
3487 case R_PARISC_TLS_IE21L:
9b52905e 3488 case R_PARISC_TLS_GD14R:
9b52905e 3489 case R_PARISC_TLS_LDM14R:
9b52905e 3490 case R_PARISC_TLS_IE14R:
30667bf3
AM
3491 value -= elf_gp (input_section->output_section->owner);
3492 break;
3493
c46b7515
AM
3494 case R_PARISC_SEGREL32:
3495 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3496 value -= htab->text_segment_base;
c46b7515 3497 else
83c81bfe 3498 value -= htab->data_segment_base;
c46b7515
AM
3499 break;
3500
30667bf3
AM
3501 default:
3502 break;
3503 }
3504
3505 switch (r_type)
3506 {
3507 case R_PARISC_DIR32:
47d89dba 3508 case R_PARISC_DIR14F:
30667bf3
AM
3509 case R_PARISC_DIR17F:
3510 case R_PARISC_PCREL17C:
3511 case R_PARISC_PCREL14F:
36751eee 3512 case R_PARISC_PCREL32:
30667bf3
AM
3513 case R_PARISC_DPREL14F:
3514 case R_PARISC_PLABEL32:
3515 case R_PARISC_DLTIND14F:
3516 case R_PARISC_SEGBASE:
3517 case R_PARISC_SEGREL32:
9b52905e
NC
3518 case R_PARISC_TLS_DTPMOD32:
3519 case R_PARISC_TLS_DTPOFF32:
3520 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3521 r_field = e_fsel;
3522 break;
3523
1bf42538 3524 case R_PARISC_DLTIND21L:
30667bf3 3525 case R_PARISC_PCREL21L:
30667bf3 3526 case R_PARISC_PLABEL21L:
1bf42538
JL
3527 r_field = e_lsel;
3528 break;
3529
3530 case R_PARISC_DIR21L:
3531 case R_PARISC_DPREL21L:
9b52905e
NC
3532 case R_PARISC_TLS_GD21L:
3533 case R_PARISC_TLS_LDM21L:
3534 case R_PARISC_TLS_LDO21L:
3535 case R_PARISC_TLS_IE21L:
3536 case R_PARISC_TLS_LE21L:
30667bf3
AM
3537 r_field = e_lrsel;
3538 break;
3539
30667bf3 3540 case R_PARISC_PCREL17R:
30667bf3 3541 case R_PARISC_PCREL14R:
30667bf3
AM
3542 case R_PARISC_PLABEL14R:
3543 case R_PARISC_DLTIND14R:
1bf42538
JL
3544 r_field = e_rsel;
3545 break;
3546
3547 case R_PARISC_DIR17R:
3548 case R_PARISC_DIR14R:
3549 case R_PARISC_DPREL14R:
9b52905e
NC
3550 case R_PARISC_TLS_GD14R:
3551 case R_PARISC_TLS_LDM14R:
3552 case R_PARISC_TLS_LDO14R:
3553 case R_PARISC_TLS_IE14R:
3554 case R_PARISC_TLS_LE14R:
30667bf3
AM
3555 r_field = e_rrsel;
3556 break;
3557
3558 case R_PARISC_PCREL12F:
3559 case R_PARISC_PCREL17F:
3560 case R_PARISC_PCREL22F:
3561 r_field = e_fsel;
3562
3563 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3564 {
3565 max_branch_offset = (1 << (17-1)) << 2;
3566 }
3567 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3568 {
3569 max_branch_offset = (1 << (12-1)) << 2;
3570 }
3571 else
3572 {
3573 max_branch_offset = (1 << (22-1)) << 2;
3574 }
3575
3576 /* sym_sec is NULL on undefined weak syms or when shared on
3577 undefined syms. We've already checked for a stub for the
3578 shared undefined case. */
3579 if (sym_sec == NULL)
3580 break;
3581
3582 /* If the branch is out of reach, then redirect the
3583 call to the local stub for this function. */
3584 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3585 {
875c0872
DA
3586 hsh = hppa_get_stub_entry (input_section, sym_sec,
3587 hh, rela, htab);
3588 if (hsh == NULL)
f09ebc7d 3589 return bfd_reloc_undefined;
30667bf3
AM
3590
3591 /* Munge up the value and addend so that we call the stub
3592 rather than the procedure directly. */
875c0872
DA
3593 value = (hsh->stub_offset
3594 + hsh->stub_sec->output_offset
3595 + hsh->stub_sec->output_section->vma
30667bf3
AM
3596 - location);
3597 addend = -8;
3598 }
3599 break;
3600
3601 /* Something we don't know how to handle. */
3602 default:
3603 return bfd_reloc_notsupported;
3604 }
3605
3606 /* Make sure we can reach the stub. */
3607 if (max_branch_offset != 0
3608 && value + addend + max_branch_offset >= 2*max_branch_offset)
3609 {
3610 (*_bfd_error_handler)
d003868e
AM
3611 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3612 input_bfd,
3613 input_section,
d1fa68d3 3614 (long) offset,
a63e02c7 3615 hsh->bh_root.string);
ce757d15 3616 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3617 return bfd_reloc_notsupported;
3618 }
3619
3620 val = hppa_field_adjust (value, addend, r_field);
3621
3622 switch (r_type)
3623 {
3624 case R_PARISC_PCREL12F:
3625 case R_PARISC_PCREL17C:
3626 case R_PARISC_PCREL17F:
3627 case R_PARISC_PCREL17R:
3628 case R_PARISC_PCREL22F:
3629 case R_PARISC_DIR17F:
3630 case R_PARISC_DIR17R:
3631 /* This is a branch. Divide the offset by four.
3632 Note that we need to decide whether it's a branch or
3633 otherwise by inspecting the reloc. Inspecting insn won't
3634 work as insn might be from a .word directive. */
3635 val >>= 2;
3636 break;
3637
3638 default:
3639 break;
3640 }
3641
3642 insn = hppa_rebuild_insn (insn, val, r_format);
3643
3644 /* Update the instruction word. */
74d1c347 3645 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3646 return bfd_reloc_ok;
3647}
3648
30667bf3
AM
3649/* Relocate an HPPA ELF section. */
3650
b34976b6 3651static bfd_boolean
c39a58e6
AM
3652elf32_hppa_relocate_section (bfd *output_bfd,
3653 struct bfd_link_info *info,
3654 bfd *input_bfd,
3655 asection *input_section,
3656 bfd_byte *contents,
3657 Elf_Internal_Rela *relocs,
3658 Elf_Internal_Sym *local_syms,
3659 asection **local_sections)
30667bf3 3660{
30667bf3 3661 bfd_vma *local_got_offsets;
83c81bfe 3662 struct elf32_hppa_link_hash_table *htab;
30667bf3 3663 Elf_Internal_Shdr *symtab_hdr;
875c0872 3664 Elf_Internal_Rela *rela;
30667bf3 3665 Elf_Internal_Rela *relend;
30667bf3
AM
3666
3667 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3668
83c81bfe 3669 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
3670 if (htab == NULL)
3671 return FALSE;
3672
74d1c347 3673 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3674
875c0872 3675 rela = relocs;
30667bf3 3676 relend = relocs + input_section->reloc_count;
875c0872 3677 for (; rela < relend; rela++)
30667bf3
AM
3678 {
3679 unsigned int r_type;
3680 reloc_howto_type *howto;
3681 unsigned int r_symndx;
875c0872 3682 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3683 Elf_Internal_Sym *sym;
3684 asection *sym_sec;
3685 bfd_vma relocation;
875c0872 3686 bfd_reloc_status_type rstatus;
30667bf3 3687 const char *sym_name;
b34976b6
AM
3688 bfd_boolean plabel;
3689 bfd_boolean warned_undef;
30667bf3 3690
875c0872 3691 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3692 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3693 {
3694 bfd_set_error (bfd_error_bad_value);
b34976b6 3695 return FALSE;
30667bf3
AM
3696 }
3697 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3698 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3699 continue;
3700
875c0872
DA
3701 r_symndx = ELF32_R_SYM (rela->r_info);
3702 hh = NULL;
30667bf3
AM
3703 sym = NULL;
3704 sym_sec = NULL;
b34976b6 3705 warned_undef = FALSE;
30667bf3
AM
3706 if (r_symndx < symtab_hdr->sh_info)
3707 {
3708 /* This is a local symbol, h defaults to NULL. */
3709 sym = local_syms + r_symndx;
3710 sym_sec = local_sections[r_symndx];
875c0872 3711 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3712 }
3713 else
3714 {
875c0872 3715 struct elf_link_hash_entry *eh;
560e09e9 3716 bfd_boolean unresolved_reloc;
b2a8e766 3717 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3718
875c0872 3719 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3720 r_symndx, symtab_hdr, sym_hashes,
875c0872 3721 eh, sym_sec, relocation,
b2a8e766 3722 unresolved_reloc, warned_undef);
560e09e9 3723
ab96bf03
AM
3724 if (!info->relocatable
3725 && relocation == 0
875c0872
DA
3726 && eh->root.type != bfd_link_hash_defined
3727 && eh->root.type != bfd_link_hash_defweak
3728 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3729 {
59c2e50f 3730 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3731 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3732 && eh->type == STT_PARISC_MILLI)
560e09e9
NC
3733 {
3734 if (! info->callbacks->undefined_symbol
9b52905e 3735 (info, eh_name (eh), input_bfd,
875c0872 3736 input_section, rela->r_offset, FALSE))
560e09e9
NC
3737 return FALSE;
3738 warned_undef = TRUE;
3739 }
30667bf3 3740 }
875c0872 3741 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3742 }
3743
ab96bf03 3744 if (sym_sec != NULL && elf_discarded_section (sym_sec))
e4067dbb
DJ
3745 RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section,
3746 rela, relend,
3747 elf_hppa_howto_table + r_type,
3748 contents);
ab96bf03
AM
3749
3750 if (info->relocatable)
3751 continue;
3752
30667bf3 3753 /* Do any required modifications to the relocation value, and
25f72752
AM
3754 determine what types of dynamic info we need to output, if
3755 any. */
74d1c347 3756 plabel = 0;
30667bf3
AM
3757 switch (r_type)
3758 {
3759 case R_PARISC_DLTIND14F:
3760 case R_PARISC_DLTIND14R:
3761 case R_PARISC_DLTIND21L:
ce757d15
AM
3762 {
3763 bfd_vma off;
b34976b6 3764 bfd_boolean do_got = 0;
ce757d15
AM
3765
3766 /* Relocation is to the entry for this symbol in the
3767 global offset table. */
875c0872 3768 if (hh != NULL)
ce757d15 3769 {
b34976b6 3770 bfd_boolean dyn;
ce757d15 3771
a63e02c7
DA
3772 off = hh->eh.got.offset;
3773 dyn = htab->etab.dynamic_sections_created;
c152c796 3774 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
a63e02c7 3775 &hh->eh))
ce757d15
AM
3776 {
3777 /* If we aren't going to call finish_dynamic_symbol,
3778 then we need to handle initialisation of the .got
3779 entry and create needed relocs here. Since the
3780 offset must always be a multiple of 4, we use the
3781 least significant bit to record whether we have
3782 initialised it already. */
3783 if ((off & 1) != 0)
3784 off &= ~1;
3785 else
3786 {
a63e02c7 3787 hh->eh.got.offset |= 1;
ce757d15
AM
3788 do_got = 1;
3789 }
3790 }
3791 }
3792 else
3793 {
3794 /* Local symbol case. */
3795 if (local_got_offsets == NULL)
3796 abort ();
3797
3798 off = local_got_offsets[r_symndx];
3799
3800 /* The offset must always be a multiple of 4. We use
3801 the least significant bit to record whether we have
3802 already generated the necessary reloc. */
3803 if ((off & 1) != 0)
3804 off &= ~1;
3805 else
3806 {
3807 local_got_offsets[r_symndx] |= 1;
3808 do_got = 1;
3809 }
3810 }
68fb2e56 3811
ce757d15
AM
3812 if (do_got)
3813 {
3814 if (info->shared)
3815 {
3816 /* Output a dynamic relocation for this GOT entry.
3817 In this case it is relative to the base of the
3818 object because the symbol index is zero. */
3819 Elf_Internal_Rela outrel;
947216bf 3820 bfd_byte *loc;
875c0872 3821 asection *sec = htab->srelgot;
ce757d15
AM
3822
3823 outrel.r_offset = (off
3824 + htab->sgot->output_offset
3825 + htab->sgot->output_section->vma);
3826 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3827 outrel.r_addend = relocation;
875c0872
DA
3828 loc = sec->contents;
3829 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3830 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3831 }
3832 else
30667bf3 3833 bfd_put_32 (output_bfd, relocation,
83c81bfe 3834 htab->sgot->contents + off);
ce757d15 3835 }
30667bf3 3836
ce757d15
AM
3837 if (off >= (bfd_vma) -2)
3838 abort ();
30667bf3 3839
ce757d15
AM
3840 /* Add the base of the GOT to the relocation value. */
3841 relocation = (off
3842 + htab->sgot->output_offset
3843 + htab->sgot->output_section->vma);
3844 }
30667bf3 3845 break;
252b5132 3846
c46b7515
AM
3847 case R_PARISC_SEGREL32:
3848 /* If this is the first SEGREL relocation, then initialize
3849 the segment base values. */
83c81bfe
AM
3850 if (htab->text_segment_base == (bfd_vma) -1)
3851 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3852 break;
3853
30667bf3
AM
3854 case R_PARISC_PLABEL14R:
3855 case R_PARISC_PLABEL21L:
3856 case R_PARISC_PLABEL32:
a63e02c7 3857 if (htab->etab.dynamic_sections_created)
252b5132 3858 {
ce757d15 3859 bfd_vma off;
b34976b6 3860 bfd_boolean do_plt = 0;
74d1c347
AM
3861 /* If we have a global symbol with a PLT slot, then
3862 redirect this relocation to it. */
875c0872 3863 if (hh != NULL)
74d1c347 3864 {
a63e02c7 3865 off = hh->eh.plt.offset;
c152c796 3866 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared,
a63e02c7 3867 &hh->eh))
8dea1268
AM
3868 {
3869 /* In a non-shared link, adjust_dynamic_symbols
3870 isn't called for symbols forced local. We
dc810e39 3871 need to write out the plt entry here. */
8dea1268
AM
3872 if ((off & 1) != 0)
3873 off &= ~1;
3874 else
3875 {
a63e02c7 3876 hh->eh.plt.offset |= 1;
ce757d15 3877 do_plt = 1;
8dea1268
AM
3878 }
3879 }
74d1c347
AM
3880 }
3881 else
3882 {
68fb2e56
AM
3883 bfd_vma *local_plt_offsets;
3884
3885 if (local_got_offsets == NULL)
3886 abort ();
74d1c347 3887
68fb2e56
AM
3888 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3889 off = local_plt_offsets[r_symndx];
74d1c347
AM
3890
3891 /* As for the local .got entry case, we use the last
3892 bit to record whether we've already initialised
3893 this local .plt entry. */
3894 if ((off & 1) != 0)
3895 off &= ~1;
ce757d15
AM
3896 else
3897 {
3898 local_plt_offsets[r_symndx] |= 1;
3899 do_plt = 1;
3900 }
3901 }
3902
3903 if (do_plt)
3904 {
3905 if (info->shared)
3906 {
3907 /* Output a dynamic IPLT relocation for this
3908 PLT entry. */
3909 Elf_Internal_Rela outrel;
947216bf
AM
3910 bfd_byte *loc;
3911 asection *s = htab->srelplt;
ce757d15
AM
3912
3913 outrel.r_offset = (off
3914 + htab->splt->output_offset
3915 + htab->splt->output_section->vma);
3916 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3917 outrel.r_addend = relocation;
947216bf
AM
3918 loc = s->contents;
3919 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3920 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3921 }
74d1c347
AM
3922 else
3923 {
3924 bfd_put_32 (output_bfd,
3925 relocation,
83c81bfe 3926 htab->splt->contents + off);
74d1c347 3927 bfd_put_32 (output_bfd,
83c81bfe
AM
3928 elf_gp (htab->splt->output_section->owner),
3929 htab->splt->contents + off + 4);
74d1c347
AM
3930 }
3931 }
3932
68fb2e56 3933 if (off >= (bfd_vma) -2)
49e9d0d3 3934 abort ();
74d1c347
AM
3935
3936 /* PLABELs contain function pointers. Relocation is to
3937 the entry for the function in the .plt. The magic +2
3938 offset signals to $$dyncall that the function pointer
3939 is in the .plt and thus has a gp pointer too.
3940 Exception: Undefined PLABELs should have a value of
3941 zero. */
875c0872 3942 if (hh == NULL
a63e02c7
DA
3943 || (hh->eh.root.type != bfd_link_hash_undefweak
3944 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3945 {
3946 relocation = (off
83c81bfe
AM
3947 + htab->splt->output_offset
3948 + htab->splt->output_section->vma
74d1c347
AM
3949 + 2);
3950 }
3951 plabel = 1;
30667bf3
AM
3952 }
3953 /* Fall through and possibly emit a dynamic relocation. */
3954
3955 case R_PARISC_DIR17F:
3956 case R_PARISC_DIR17R:
47d89dba 3957 case R_PARISC_DIR14F:
30667bf3
AM
3958 case R_PARISC_DIR14R:
3959 case R_PARISC_DIR21L:
3960 case R_PARISC_DPREL14F:
3961 case R_PARISC_DPREL14R:
3962 case R_PARISC_DPREL21L:
3963 case R_PARISC_DIR32:
b1e24c02 3964 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3965 break;
3966
30667bf3 3967 /* The reloc types handled here and this conditional
56882138 3968 expression must match the code in ..check_relocs and
ec338859 3969 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3970 as in ..check_relocs, with some extra conditions (dynindx
3971 test in this case) to cater for relocs removed by
ec338859 3972 allocate_dynrelocs. If you squint, the non-shared test
56882138
AM
3973 here does indeed match the one in ..check_relocs, the
3974 difference being that here we test DEF_DYNAMIC as well as
3975 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3976 which is why we can't use just that test here.
3977 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3978 there all files have not been loaded. */
446f2863 3979 if ((info->shared
875c0872 3980 && (hh == NULL
a63e02c7
DA
3981 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3982 || hh->eh.root.type != bfd_link_hash_undefweak)
446f2863 3983 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3984 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
446f2863 3985 || (!info->shared
875c0872 3986 && hh != NULL
a63e02c7
DA
3987 && hh->eh.dynindx != -1
3988 && !hh->eh.non_got_ref
4fc8051d 3989 && ((ELIMINATE_COPY_RELOCS
a63e02c7
DA
3990 && hh->eh.def_dynamic
3991 && !hh->eh.def_regular)
3992 || hh->eh.root.type == bfd_link_hash_undefweak
3993 || hh->eh.root.type == bfd_link_hash_undefined)))
30667bf3
AM
3994 {
3995 Elf_Internal_Rela outrel;
b34976b6 3996 bfd_boolean skip;
98ceb8ce 3997 asection *sreloc;
947216bf 3998 bfd_byte *loc;
252b5132 3999
30667bf3
AM
4000 /* When generating a shared object, these relocations
4001 are copied into the output file to be resolved at run
4002 time. */
252b5132 4003
875c0872 4004 outrel.r_addend = rela->r_addend;
c629eae0
JJ
4005 outrel.r_offset =
4006 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 4007 rela->r_offset);
0bb2d96a
JJ
4008 skip = (outrel.r_offset == (bfd_vma) -1
4009 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
4010 outrel.r_offset += (input_section->output_offset
4011 + input_section->output_section->vma);
875c0872 4012
30667bf3 4013 if (skip)
252b5132 4014 {
30667bf3 4015 memset (&outrel, 0, sizeof (outrel));
252b5132 4016 }
875c0872 4017 else if (hh != NULL
a63e02c7 4018 && hh->eh.dynindx != -1
74d1c347 4019 && (plabel
446f2863
AM
4020 || !IS_ABSOLUTE_RELOC (r_type)
4021 || !info->shared
74d1c347 4022 || !info->symbolic
a63e02c7 4023 || !hh->eh.def_regular))
252b5132 4024 {
a63e02c7 4025 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
4026 }
4027 else /* It's a local symbol, or one marked to become local. */
4028 {
4029 int indx = 0;
edd21aca 4030
30667bf3
AM
4031 /* Add the absolute offset of the symbol. */
4032 outrel.r_addend += relocation;
edd21aca 4033
74d1c347
AM
4034 /* Global plabels need to be processed by the
4035 dynamic linker so that functions have at most one
4036 fptr. For this reason, we need to differentiate
4037 between global and local plabels, which we do by
4038 providing the function symbol for a global plabel
4039 reloc, and no symbol for local plabels. */
4040 if (! plabel
4041 && sym_sec != NULL
30667bf3
AM
4042 && sym_sec->output_section != NULL
4043 && ! bfd_is_abs_section (sym_sec))
252b5132 4044 {
74541ad4
AM
4045 asection *osec;
4046
4047 osec = sym_sec->output_section;
4048 indx = elf_section_data (osec)->dynindx;
4049 if (indx == 0)
4050 {
4051 osec = htab->etab.text_index_section;
4052 indx = elf_section_data (osec)->dynindx;
4053 }
4054 BFD_ASSERT (indx != 0);
4b71bec0 4055
30667bf3
AM
4056 /* We are turning this relocation into one
4057 against a section symbol, so subtract out the
4058 output section's address but not the offset
4059 of the input section in the output section. */
74541ad4 4060 outrel.r_addend -= osec->vma;
252b5132 4061 }
252b5132 4062
30667bf3
AM
4063 outrel.r_info = ELF32_R_INFO (indx, r_type);
4064 }
98ceb8ce
AM
4065 sreloc = elf_section_data (input_section)->sreloc;
4066 if (sreloc == NULL)
4067 abort ();
4068
947216bf
AM
4069 loc = sreloc->contents;
4070 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 4071 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
4072 }
4073 break;
9b52905e
NC
4074
4075 case R_PARISC_TLS_LDM21L:
4076 case R_PARISC_TLS_LDM14R:
4077 {
4078 bfd_vma off;
4079
4080 off = htab->tls_ldm_got.offset;
4081 if (off & 1)
4082 off &= ~1;
4083 else
4084 {
4085 Elf_Internal_Rela outrel;
4086 bfd_byte *loc;
4087
4088 outrel.r_offset = (off
4089 + htab->sgot->output_section->vma
4090 + htab->sgot->output_offset);
4091 outrel.r_addend = 0;
4092 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
4093 loc = htab->srelgot->contents;
4094 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4095
4096 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4097 htab->tls_ldm_got.offset |= 1;
4098 }
4099
4100 /* Add the base of the GOT to the relocation value. */
4101 relocation = (off
4102 + htab->sgot->output_offset
4103 + htab->sgot->output_section->vma);
4104
4105 break;
4106 }
4107
4108 case R_PARISC_TLS_LDO21L:
4109 case R_PARISC_TLS_LDO14R:
4110 relocation -= dtpoff_base (info);
4111 break;
4112
4113 case R_PARISC_TLS_GD21L:
4114 case R_PARISC_TLS_GD14R:
4115 case R_PARISC_TLS_IE21L:
4116 case R_PARISC_TLS_IE14R:
4117 {
4118 bfd_vma off;
4119 int indx;
4120 char tls_type;
4121
4122 indx = 0;
4123 if (hh != NULL)
4124 {
4125 bfd_boolean dyn;
4126 dyn = htab->etab.dynamic_sections_created;
4127
4128 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh)
4129 && (!info->shared
4130 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4131 {
4132 indx = hh->eh.dynindx;
4133 }
4134 off = hh->eh.got.offset;
4135 tls_type = hh->tls_type;
4136 }
4137 else
4138 {
4139 off = local_got_offsets[r_symndx];
4140 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4141 }
4142
4143 if (tls_type == GOT_UNKNOWN)
4144 abort ();
4145
4146 if ((off & 1) != 0)
4147 off &= ~1;
4148 else
4149 {
4150 bfd_boolean need_relocs = FALSE;
4151 Elf_Internal_Rela outrel;
4152 bfd_byte *loc = NULL;
4153 int cur_off = off;
4154
4155 /* The GOT entries have not been initialized yet. Do it
4156 now, and emit any relocations. If both an IE GOT and a
4157 GD GOT are necessary, we emit the GD first. */
4158
4159 if ((info->shared || indx != 0)
4160 && (hh == NULL
4161 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4162 || hh->eh.root.type != bfd_link_hash_undefweak))
4163 {
4164 need_relocs = TRUE;
4165 loc = htab->srelgot->contents;
4166 /* FIXME (CAO): Should this be reloc_count++ ? */
4167 loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
4168 }
4169
4170 if (tls_type & GOT_TLS_GD)
4171 {
4172 if (need_relocs)
4173 {
4174 outrel.r_offset = (cur_off
4175 + htab->sgot->output_section->vma
4176 + htab->sgot->output_offset);
4177 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4178 outrel.r_addend = 0;
4179 bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
4180 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4181 htab->srelgot->reloc_count++;
4182 loc += sizeof (Elf32_External_Rela);
4183
4184 if (indx == 0)
4185 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4186 htab->sgot->contents + cur_off + 4);
4187 else
4188 {
4189 bfd_put_32 (output_bfd, 0,
4190 htab->sgot->contents + cur_off + 4);
4191 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4192 outrel.r_offset += 4;
4193 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4194 htab->srelgot->reloc_count++;
4195 loc += sizeof (Elf32_External_Rela);
4196 }
4197 }
4198 else
4199 {
4200 /* If we are not emitting relocations for a
4201 general dynamic reference, then we must be in a
4202 static link or an executable link with the
4203 symbol binding locally. Mark it as belonging
4204 to module 1, the executable. */
4205 bfd_put_32 (output_bfd, 1,
4206 htab->sgot->contents + cur_off);
4207 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4208 htab->sgot->contents + cur_off + 4);
4209 }
4210
4211
4212 cur_off += 8;
4213 }
4214
4215 if (tls_type & GOT_TLS_IE)
4216 {
4217 if (need_relocs)
4218 {
4219 outrel.r_offset = (cur_off
4220 + htab->sgot->output_section->vma
4221 + htab->sgot->output_offset);
4222 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4223
4224 if (indx == 0)
4225 outrel.r_addend = relocation - dtpoff_base (info);
4226 else
4227 outrel.r_addend = 0;
4228
4229 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4230 htab->srelgot->reloc_count++;
4231 loc += sizeof (Elf32_External_Rela);
4232 }
4233 else
4234 bfd_put_32 (output_bfd, tpoff (info, relocation),
4235 htab->sgot->contents + cur_off);
4236
4237 cur_off += 4;
4238 }
4239
4240 if (hh != NULL)
4241 hh->eh.got.offset |= 1;
4242 else
4243 local_got_offsets[r_symndx] |= 1;
4244 }
4245
4246 if ((tls_type & GOT_TLS_GD)
4247 && r_type != R_PARISC_TLS_GD21L
4248 && r_type != R_PARISC_TLS_GD14R)
4249 off += 2 * GOT_ENTRY_SIZE;
4250
4251 /* Add the base of the GOT to the relocation value. */
4252 relocation = (off
4253 + htab->sgot->output_offset
4254 + htab->sgot->output_section->vma);
4255
4256 break;
4257 }
4258
4259 case R_PARISC_TLS_LE21L:
4260 case R_PARISC_TLS_LE14R:
4261 {
4262 relocation = tpoff (info, relocation);
4263 break;
4264 }
4265 break;
edd21aca 4266
30667bf3
AM
4267 default:
4268 break;
4269 }
252b5132 4270
875c0872
DA
4271 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4272 htab, sym_sec, hh, info);
252b5132 4273
875c0872 4274 if (rstatus == bfd_reloc_ok)
30667bf3 4275 continue;
252b5132 4276
875c0872 4277 if (hh != NULL)
9b52905e 4278 sym_name = hh_name (hh);
30667bf3
AM
4279 else
4280 {
4281 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4282 symtab_hdr->sh_link,
4283 sym->st_name);
4284 if (sym_name == NULL)
b34976b6 4285 return FALSE;
30667bf3
AM
4286 if (*sym_name == '\0')
4287 sym_name = bfd_section_name (input_bfd, sym_sec);
4288 }
edd21aca 4289
30667bf3 4290 howto = elf_hppa_howto_table + r_type;
252b5132 4291
875c0872 4292 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4293 {
875c0872 4294 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d
AM
4295 {
4296 (*_bfd_error_handler)
d003868e
AM
4297 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4298 input_bfd,
4299 input_section,
875c0872 4300 (long) rela->r_offset,
f09ebc7d
AM
4301 howto->name,
4302 sym_name);
4303 bfd_set_error (bfd_error_bad_value);
b34976b6 4304 return FALSE;
f09ebc7d 4305 }
30667bf3
AM
4306 }
4307 else
4308 {
4309 if (!((*info->callbacks->reloc_overflow)
a63e02c7 4310 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
875c0872 4311 (bfd_vma) 0, input_bfd, input_section, rela->r_offset)))
b34976b6 4312 return FALSE;
30667bf3
AM
4313 }
4314 }
edd21aca 4315
b34976b6 4316 return TRUE;
30667bf3 4317}
252b5132 4318
30667bf3
AM
4319/* Finish up dynamic symbol handling. We set the contents of various
4320 dynamic sections here. */
252b5132 4321
b34976b6 4322static bfd_boolean
c39a58e6
AM
4323elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4324 struct bfd_link_info *info,
875c0872 4325 struct elf_link_hash_entry *eh,
c39a58e6 4326 Elf_Internal_Sym *sym)
30667bf3 4327{
83c81bfe 4328 struct elf32_hppa_link_hash_table *htab;
875c0872 4329 Elf_Internal_Rela rela;
a252afa4 4330 bfd_byte *loc;
edd21aca 4331
83c81bfe 4332 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4333 if (htab == NULL)
4334 return FALSE;
30667bf3 4335
875c0872 4336 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4337 {
4338 bfd_vma value;
30667bf3 4339
875c0872 4340 if (eh->plt.offset & 1)
8dea1268
AM
4341 abort ();
4342
30667bf3
AM
4343 /* This symbol has an entry in the procedure linkage table. Set
4344 it up.
4345
4346 The format of a plt entry is
74d1c347
AM
4347 <funcaddr>
4348 <__gp>
47d89dba 4349 */
30667bf3 4350 value = 0;
875c0872
DA
4351 if (eh->root.type == bfd_link_hash_defined
4352 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4353 {
875c0872
DA
4354 value = eh->root.u.def.value;
4355 if (eh->root.u.def.section->output_section != NULL)
4356 value += (eh->root.u.def.section->output_offset
4357 + eh->root.u.def.section->output_section->vma);
252b5132 4358 }
edd21aca 4359
a252afa4 4360 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4361 rela.r_offset = (eh->plt.offset
a252afa4
DA
4362 + htab->splt->output_offset
4363 + htab->splt->output_section->vma);
875c0872 4364 if (eh->dynindx != -1)
30667bf3 4365 {
875c0872
DA
4366 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4367 rela.r_addend = 0;
30667bf3 4368 }
ce757d15 4369 else
47d89dba 4370 {
a252afa4
DA
4371 /* This symbol has been marked to become local, and is
4372 used by a plabel so must be kept in the .plt. */
875c0872
DA
4373 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4374 rela.r_addend = value;
47d89dba
AM
4375 }
4376
a252afa4
DA
4377 loc = htab->srelplt->contents;
4378 loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4379 bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc);
a252afa4 4380
875c0872 4381 if (!eh->def_regular)
30667bf3
AM
4382 {
4383 /* Mark the symbol as undefined, rather than as defined in
4384 the .plt section. Leave the value alone. */
4385 sym->st_shndx = SHN_UNDEF;
4386 }
4387 }
edd21aca 4388
9b52905e
NC
4389 if (eh->got.offset != (bfd_vma) -1
4390 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4391 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
30667bf3 4392 {
30667bf3
AM
4393 /* This symbol has an entry in the global offset table. Set it
4394 up. */
4395
875c0872 4396 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
83c81bfe
AM
4397 + htab->sgot->output_offset
4398 + htab->sgot->output_section->vma);
30667bf3 4399
4dc86686
AM
4400 /* If this is a -Bsymbolic link and the symbol is defined
4401 locally or was forced to be local because of a version file,
4402 we just want to emit a RELATIVE reloc. The entry in the
4403 global offset table will already have been initialized in the
4404 relocate_section function. */
4405 if (info->shared
875c0872
DA
4406 && (info->symbolic || eh->dynindx == -1)
4407 && eh->def_regular)
30667bf3 4408 {
875c0872
DA
4409 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4410 rela.r_addend = (eh->root.u.def.value
4411 + eh->root.u.def.section->output_offset
4412 + eh->root.u.def.section->output_section->vma);
30667bf3
AM
4413 }
4414 else
4415 {
875c0872 4416 if ((eh->got.offset & 1) != 0)
49e9d0d3 4417 abort ();
875c0872
DA
4418
4419 bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1));
4420 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4421 rela.r_addend = 0;
30667bf3 4422 }
edd21aca 4423
947216bf
AM
4424 loc = htab->srelgot->contents;
4425 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4426 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3 4427 }
edd21aca 4428
875c0872 4429 if (eh->needs_copy)
30667bf3 4430 {
875c0872 4431 asection *sec;
30667bf3
AM
4432
4433 /* This symbol needs a copy reloc. Set it up. */
4434
875c0872
DA
4435 if (! (eh->dynindx != -1
4436 && (eh->root.type == bfd_link_hash_defined
4437 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4438 abort ();
30667bf3 4439
875c0872 4440 sec = htab->srelbss;
30667bf3 4441
875c0872
DA
4442 rela.r_offset = (eh->root.u.def.value
4443 + eh->root.u.def.section->output_offset
4444 + eh->root.u.def.section->output_section->vma);
4445 rela.r_addend = 0;
4446 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4447 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4448 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4449 }
4450
4451 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9b52905e
NC
4452 if (eh_name (eh)[0] == '_'
4453 && (strcmp (eh_name (eh), "_DYNAMIC") == 0
22edb2f1 4454 || eh == htab->etab.hgot))
30667bf3
AM
4455 {
4456 sym->st_shndx = SHN_ABS;
4457 }
4458
b34976b6 4459 return TRUE;
30667bf3
AM
4460}
4461
98ceb8ce
AM
4462/* Used to decide how to sort relocs in an optimal manner for the
4463 dynamic linker, before writing them out. */
4464
4465static enum elf_reloc_type_class
c39a58e6 4466elf32_hppa_reloc_type_class (const Elf_Internal_Rela *rela)
98ceb8ce 4467{
9b52905e 4468 /* Handle TLS relocs first; we don't want them to be marked
cf35638d 4469 relative by the "if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)"
9b52905e
NC
4470 check below. */
4471 switch ((int) ELF32_R_TYPE (rela->r_info))
4472 {
4473 case R_PARISC_TLS_DTPMOD32:
4474 case R_PARISC_TLS_DTPOFF32:
4475 case R_PARISC_TLS_TPREL32:
4476 return reloc_class_normal;
4477 }
4478
cf35638d 4479 if (ELF32_R_SYM (rela->r_info) == STN_UNDEF)
98ceb8ce
AM
4480 return reloc_class_relative;
4481
4482 switch ((int) ELF32_R_TYPE (rela->r_info))
4483 {
4484 case R_PARISC_IPLT:
4485 return reloc_class_plt;
4486 case R_PARISC_COPY:
4487 return reloc_class_copy;
4488 default:
4489 return reloc_class_normal;
4490 }
4491}
4492
30667bf3
AM
4493/* Finish up the dynamic sections. */
4494
b34976b6 4495static bfd_boolean
c39a58e6
AM
4496elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4497 struct bfd_link_info *info)
30667bf3
AM
4498{
4499 bfd *dynobj;
83c81bfe 4500 struct elf32_hppa_link_hash_table *htab;
30667bf3 4501 asection *sdyn;
894891db 4502 asection * sgot;
30667bf3 4503
83c81bfe 4504 htab = hppa_link_hash_table (info);
4dfe6ac6
NC
4505 if (htab == NULL)
4506 return FALSE;
4507
a63e02c7 4508 dynobj = htab->etab.dynobj;
30667bf3 4509
894891db
NC
4510 sgot = htab->sgot;
4511 /* A broken linker script might have discarded the dynamic sections.
4512 Catch this here so that we do not seg-fault later on. */
4513 if (sgot != NULL && bfd_is_abs_section (sgot->output_section))
4514 return FALSE;
4515
30667bf3
AM
4516 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4517
a63e02c7 4518 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4519 {
4520 Elf32_External_Dyn *dyncon, *dynconend;
4521
49e9d0d3
AM
4522 if (sdyn == NULL)
4523 abort ();
30667bf3
AM
4524
4525 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4526 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4527 for (; dyncon < dynconend; dyncon++)
edd21aca 4528 {
30667bf3
AM
4529 Elf_Internal_Dyn dyn;
4530 asection *s;
4531
4532 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4533
4534 switch (dyn.d_tag)
4535 {
4536 default:
3ac8354b 4537 continue;
30667bf3
AM
4538
4539 case DT_PLTGOT:
4540 /* Use PLTGOT to set the GOT register. */
4541 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4542 break;
4543
4544 case DT_JMPREL:
83c81bfe 4545 s = htab->srelplt;
30667bf3 4546 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4547 break;
4548
4549 case DT_PLTRELSZ:
83c81bfe 4550 s = htab->srelplt;
eea6121a 4551 dyn.d_un.d_val = s->size;
30667bf3 4552 break;
4e12ff7f
AM
4553
4554 case DT_RELASZ:
4555 /* Don't count procedure linkage table relocs in the
4556 overall reloc count. */
6348e046
AM
4557 s = htab->srelplt;
4558 if (s == NULL)
4559 continue;
eea6121a 4560 dyn.d_un.d_val -= s->size;
6348e046
AM
4561 break;
4562
4563 case DT_RELA:
4564 /* We may not be using the standard ELF linker script.
4565 If .rela.plt is the first .rela section, we adjust
4566 DT_RELA to not include it. */
4567 s = htab->srelplt;
4568 if (s == NULL)
4569 continue;
4570 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
4571 continue;
eea6121a 4572 dyn.d_un.d_ptr += s->size;
4e12ff7f 4573 break;
30667bf3 4574 }
3ac8354b
AM
4575
4576 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4577 }
252b5132 4578 }
edd21aca 4579
894891db 4580 if (sgot != NULL && sgot->size != 0)
30667bf3 4581 {
74d1c347
AM
4582 /* Fill in the first entry in the global offset table.
4583 We use it to point to our dynamic section, if we have one. */
30667bf3 4584 bfd_put_32 (output_bfd,
c39a58e6 4585 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
894891db 4586 sgot->contents);
30667bf3 4587
74d1c347 4588 /* The second entry is reserved for use by the dynamic linker. */
894891db 4589 memset (sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4590
30667bf3 4591 /* Set .got entry size. */
894891db 4592 elf_section_data (sgot->output_section)
74d1c347 4593 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4594 }
4595
eea6121a 4596 if (htab->splt != NULL && htab->splt->size != 0)
47d89dba
AM
4597 {
4598 /* Set plt entry size. */
83c81bfe 4599 elf_section_data (htab->splt->output_section)
47d89dba
AM
4600 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
4601
83c81bfe 4602 if (htab->need_plt_stub)
47d89dba
AM
4603 {
4604 /* Set up the .plt stub. */
83c81bfe 4605 memcpy (htab->splt->contents
eea6121a 4606 + htab->splt->size - sizeof (plt_stub),
47d89dba
AM
4607 plt_stub, sizeof (plt_stub));
4608
83c81bfe
AM
4609 if ((htab->splt->output_offset
4610 + htab->splt->output_section->vma
eea6121a 4611 + htab->splt->size)
894891db
NC
4612 != (sgot->output_offset
4613 + sgot->output_section->vma))
47d89dba
AM
4614 {
4615 (*_bfd_error_handler)
4616 (_(".got section not immediately after .plt section"));
b34976b6 4617 return FALSE;
47d89dba
AM
4618 }
4619 }
4620 }
30667bf3 4621
b34976b6 4622 return TRUE;
30667bf3 4623}
252b5132 4624
30667bf3
AM
4625/* Called when writing out an object file to decide the type of a
4626 symbol. */
4627static int
c39a58e6 4628elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4629{
4630 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4631 return STT_PARISC_MILLI;
4632 else
4633 return type;
252b5132
RH
4634}
4635
4636/* Misc BFD support code. */
30667bf3
AM
4637#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4638#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4639#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4640#define elf_info_to_howto elf_hppa_info_to_howto
4641#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4642
252b5132 4643/* Stuff for the BFD linker. */
c46b7515 4644#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4645#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
e2d34d7d 4646#define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
30667bf3 4647#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4648#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3
AM
4649#define elf_backend_check_relocs elf32_hppa_check_relocs
4650#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4651#define elf_backend_fake_sections elf_hppa_fake_sections
4652#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4653#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4654#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4655#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4656#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4657#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3
AM
4658#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4659#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
edfc032f
AM
4660#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4661#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4662#define elf_backend_object_p elf32_hppa_object_p
4663#define elf_backend_final_write_processing elf_hppa_final_write_processing
d1036acb 4664#define elf_backend_post_process_headers _bfd_elf_set_osabi
30667bf3 4665#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4666#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4667#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4668
4669#define elf_backend_can_gc_sections 1
51b64d56 4670#define elf_backend_can_refcount 1
30667bf3
AM
4671#define elf_backend_plt_alignment 2
4672#define elf_backend_want_got_plt 0
4673#define elf_backend_plt_readonly 0
4674#define elf_backend_want_plt_sym 0
74d1c347 4675#define elf_backend_got_header_size 8
f0fe0e16 4676#define elf_backend_rela_normal 1
252b5132
RH
4677
4678#define TARGET_BIG_SYM bfd_elf32_hppa_vec
4679#define TARGET_BIG_NAME "elf32-hppa"
4680#define ELF_ARCH bfd_arch_hppa
ae95ffa6 4681#define ELF_TARGET_ID HPPA32_ELF_DATA
252b5132
RH
4682#define ELF_MACHINE_CODE EM_PARISC
4683#define ELF_MAXPAGESIZE 0x1000
d1036acb 4684#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4685#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4686
4687#include "elf32-target.h"
d952f17a
AM
4688
4689#undef TARGET_BIG_SYM
914dfb0f 4690#define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
d952f17a 4691#undef TARGET_BIG_NAME
914dfb0f 4692#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb 4693#undef ELF_OSABI
9c55345c 4694#define ELF_OSABI ELFOSABI_GNU
914dfb0f
DA
4695#undef elf32_bed
4696#define elf32_bed elf32_hppa_linux_bed
d952f17a 4697
d952f17a 4698#include "elf32-target.h"
225247f0
JT
4699
4700#undef TARGET_BIG_SYM
914dfb0f 4701#define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec
225247f0 4702#undef TARGET_BIG_NAME
914dfb0f 4703#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4704#undef ELF_OSABI
4705#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4706#undef elf32_bed
4707#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4708
4709#include "elf32-target.h"
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