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[deliverable/binutils-gdb.git] / bfd / elf32-hppa.c
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252b5132 1/* BFD back-end for HP PA-RISC ELF files.
e5094212 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1999, 2000, 2001,
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3 2002, 2003, 2004, 2005, 2006, 2007, 2008
4 Free Software Foundation, Inc.
252b5132 5
30667bf3 6 Original code by
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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>
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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
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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
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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
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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
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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"
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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
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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
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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
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71 : addil LR'X - ($PIC_pcrel$0 - 4),%r1
72 : be,n RR'X - ($PIC_pcrel$0 - 8)(%sr4,%r1)
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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.
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80
81 Import stub to call shared library routine from shared library
82 (single sub-space version)
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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)
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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)
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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.
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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
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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
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157/* Section name for stubs is the associated section name plus this
158 string. */
159#define STUB_SUFFIX ".stub"
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
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167#endif
168
4fc8051d
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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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185struct elf32_hppa_stub_hash_entry
186{
edd21aca 187 /* Base hash table entry structure. */
a63e02c7 188 struct bfd_hash_entry bh_root;
252b5132 189
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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;
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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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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
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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;
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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
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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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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
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243 /* Set if this symbol is used by a plabel reloc. */
244 unsigned int plabel:1;
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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
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255 /* Linker stub bfd. */
256 bfd *stub_bfd;
257
30667bf3 258 /* Linker call-backs. */
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259 asection * (*add_stub_section) (const char *, asection *);
260 void (*layout_sections_again) (void);
30667bf3 261
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262 /* Array to keep track of which stub sections have been created, and
263 information on stub grouping. */
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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
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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
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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
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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
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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;
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300
301 /* Set if we need a .plt stub to support lazy dynamic linking. */
302 unsigned int need_plt_stub:1;
ec338859
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303
304 /* Small local sym to section mapping cache. */
305 struct sym_sec_cache sym_sec;
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306
307 /* Data for LDM relocations. */
308 union
309 {
310 bfd_signed_vma refcount;
311 bfd_vma offset;
312 } tls_ldm_got;
252b5132
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313};
314
30667bf3
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315/* Various hash macros and functions. */
316#define hppa_link_hash_table(p) \
edd21aca 317 ((struct elf32_hppa_link_hash_table *) ((p)->hash))
252b5132 318
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319#define hppa_elf_hash_entry(ent) \
320 ((struct elf32_hppa_link_hash_entry *)(ent))
321
322#define hppa_stub_hash_entry(ent) \
323 ((struct elf32_hppa_stub_hash_entry *)(ent))
324
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325#define hppa_stub_hash_lookup(table, string, create, copy) \
326 ((struct elf32_hppa_stub_hash_entry *) \
327 bfd_hash_lookup ((table), (string), (create), (copy)))
328
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329#define hppa_elf_local_got_tls_type(abfd) \
330 ((char *)(elf_local_got_offsets (abfd) + (elf_tdata (abfd)->symtab_hdr.sh_info * 2)))
331
332#define hh_name(hh) \
333 (hh ? hh->eh.root.root.string : "<undef>")
334
335#define eh_name(eh) \
336 (eh ? eh->root.root.string : "<undef>")
337
0c8d6e5c
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338/* Override the generic function because we want to mark our BFDs. */
339
340static bfd_boolean
341elf32_hppa_mkobject (bfd *abfd)
342{
343 return bfd_elf_allocate_object (abfd, sizeof (struct elf_obj_tdata),
344 HPPA_ELF_TDATA);
345}
346
252b5132
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347/* Assorted hash table functions. */
348
349/* Initialize an entry in the stub hash table. */
350
351static struct bfd_hash_entry *
c39a58e6
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352stub_hash_newfunc (struct bfd_hash_entry *entry,
353 struct bfd_hash_table *table,
354 const char *string)
252b5132 355{
252b5132
RH
356 /* Allocate the structure if it has not already been allocated by a
357 subclass. */
ebe50bae 358 if (entry == NULL)
30667bf3 359 {
ebe50bae
AM
360 entry = bfd_hash_allocate (table,
361 sizeof (struct elf32_hppa_stub_hash_entry));
362 if (entry == NULL)
363 return entry;
30667bf3 364 }
252b5132
RH
365
366 /* Call the allocation method of the superclass. */
ebe50bae
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367 entry = bfd_hash_newfunc (entry, table, string);
368 if (entry != NULL)
252b5132 369 {
875c0872 370 struct elf32_hppa_stub_hash_entry *hsh;
ebe50bae 371
252b5132 372 /* Initialize the local fields. */
875c0872
DA
373 hsh = hppa_stub_hash_entry (entry);
374 hsh->stub_sec = NULL;
375 hsh->stub_offset = 0;
376 hsh->target_value = 0;
377 hsh->target_section = NULL;
378 hsh->stub_type = hppa_stub_long_branch;
a63e02c7 379 hsh->hh = NULL;
875c0872 380 hsh->id_sec = NULL;
30667bf3
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381 }
382
ebe50bae 383 return entry;
30667bf3
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384}
385
30667bf3
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386/* Initialize an entry in the link hash table. */
387
388static struct bfd_hash_entry *
c39a58e6
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389hppa_link_hash_newfunc (struct bfd_hash_entry *entry,
390 struct bfd_hash_table *table,
391 const char *string)
30667bf3 392{
30667bf3
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393 /* Allocate the structure if it has not already been allocated by a
394 subclass. */
ebe50bae 395 if (entry == NULL)
30667bf3 396 {
ebe50bae
AM
397 entry = bfd_hash_allocate (table,
398 sizeof (struct elf32_hppa_link_hash_entry));
399 if (entry == NULL)
400 return entry;
30667bf3
AM
401 }
402
403 /* Call the allocation method of the superclass. */
ebe50bae
AM
404 entry = _bfd_elf_link_hash_newfunc (entry, table, string);
405 if (entry != NULL)
30667bf3 406 {
875c0872 407 struct elf32_hppa_link_hash_entry *hh;
ebe50bae 408
30667bf3 409 /* Initialize the local fields. */
875c0872 410 hh = hppa_elf_hash_entry (entry);
a63e02c7 411 hh->hsh_cache = NULL;
875c0872
DA
412 hh->dyn_relocs = NULL;
413 hh->plabel = 0;
9b52905e 414 hh->tls_type = GOT_UNKNOWN;
252b5132
RH
415 }
416
ebe50bae 417 return entry;
252b5132
RH
418}
419
252b5132
RH
420/* Create the derived linker hash table. The PA ELF port uses the derived
421 hash table to keep information specific to the PA ELF linker (without
422 using static variables). */
423
424static struct bfd_link_hash_table *
c39a58e6 425elf32_hppa_link_hash_table_create (bfd *abfd)
252b5132 426{
875c0872
DA
427 struct elf32_hppa_link_hash_table *htab;
428 bfd_size_type amt = sizeof (*htab);
252b5132 429
9b52905e 430 htab = bfd_malloc (amt);
875c0872 431 if (htab == NULL)
252b5132 432 return NULL;
edd21aca 433
66eb6687
AM
434 if (!_bfd_elf_link_hash_table_init (&htab->etab, abfd, hppa_link_hash_newfunc,
435 sizeof (struct elf32_hppa_link_hash_entry)))
252b5132 436 {
875c0872 437 free (htab);
252b5132
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438 return NULL;
439 }
edd21aca
AM
440
441 /* Init the stub hash table too. */
66eb6687
AM
442 if (!bfd_hash_table_init (&htab->bstab, stub_hash_newfunc,
443 sizeof (struct elf32_hppa_stub_hash_entry)))
edd21aca
AM
444 return NULL;
445
875c0872
DA
446 htab->stub_bfd = NULL;
447 htab->add_stub_section = NULL;
448 htab->layout_sections_again = NULL;
449 htab->stub_group = NULL;
450 htab->sgot = NULL;
451 htab->srelgot = NULL;
452 htab->splt = NULL;
453 htab->srelplt = NULL;
454 htab->sdynbss = NULL;
455 htab->srelbss = NULL;
456 htab->text_segment_base = (bfd_vma) -1;
457 htab->data_segment_base = (bfd_vma) -1;
458 htab->multi_subspace = 0;
459 htab->has_12bit_branch = 0;
460 htab->has_17bit_branch = 0;
461 htab->has_22bit_branch = 0;
462 htab->need_plt_stub = 0;
463 htab->sym_sec.abfd = NULL;
9b52905e 464 htab->tls_ldm_got.refcount = 0;
875c0872 465
a63e02c7 466 return &htab->etab.root;
252b5132
RH
467}
468
e2d34d7d
DJ
469/* Free the derived linker hash table. */
470
471static void
875c0872 472elf32_hppa_link_hash_table_free (struct bfd_link_hash_table *btab)
e2d34d7d 473{
875c0872
DA
474 struct elf32_hppa_link_hash_table *htab
475 = (struct elf32_hppa_link_hash_table *) btab;
e2d34d7d 476
a63e02c7 477 bfd_hash_table_free (&htab->bstab);
875c0872 478 _bfd_generic_link_hash_table_free (btab);
e2d34d7d
DJ
479}
480
30667bf3
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481/* Build a name for an entry in the stub hash table. */
482
edd21aca 483static char *
c39a58e6
AM
484hppa_stub_name (const asection *input_section,
485 const asection *sym_sec,
875c0872
DA
486 const struct elf32_hppa_link_hash_entry *hh,
487 const Elf_Internal_Rela *rela)
edd21aca
AM
488{
489 char *stub_name;
dc810e39 490 bfd_size_type len;
edd21aca 491
875c0872 492 if (hh)
30667bf3 493 {
9b52905e 494 len = 8 + 1 + strlen (hh_name (hh)) + 1 + 8 + 1;
30667bf3
AM
495 stub_name = bfd_malloc (len);
496 if (stub_name != NULL)
9b52905e
NC
497 sprintf (stub_name, "%08x_%s+%x",
498 input_section->id & 0xffffffff,
499 hh_name (hh),
500 (int) rela->r_addend & 0xffffffff);
30667bf3
AM
501 }
502 else
edd21aca 503 {
30667bf3
AM
504 len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1;
505 stub_name = bfd_malloc (len);
506 if (stub_name != NULL)
9b52905e
NC
507 sprintf (stub_name, "%08x_%x:%x+%x",
508 input_section->id & 0xffffffff,
509 sym_sec->id & 0xffffffff,
510 (int) ELF32_R_SYM (rela->r_info) & 0xffffffff,
511 (int) rela->r_addend & 0xffffffff);
edd21aca
AM
512 }
513 return stub_name;
514}
252b5132 515
30667bf3
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516/* Look up an entry in the stub hash. Stub entries are cached because
517 creating the stub name takes a bit of time. */
518
519static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
520hppa_get_stub_entry (const asection *input_section,
521 const asection *sym_sec,
875c0872
DA
522 struct elf32_hppa_link_hash_entry *hh,
523 const Elf_Internal_Rela *rela,
c39a58e6 524 struct elf32_hppa_link_hash_table *htab)
252b5132 525{
a63e02c7 526 struct elf32_hppa_stub_hash_entry *hsh_entry;
25f72752
AM
527 const asection *id_sec;
528
529 /* If this input section is part of a group of sections sharing one
530 stub section, then use the id of the first section in the group.
531 Stub names need to include a section id, as there may well be
532 more than one stub used to reach say, printf, and we need to
533 distinguish between them. */
83c81bfe 534 id_sec = htab->stub_group[input_section->id].link_sec;
edd21aca 535
a63e02c7
DA
536 if (hh != NULL && hh->hsh_cache != NULL
537 && hh->hsh_cache->hh == hh
538 && hh->hsh_cache->id_sec == id_sec)
edd21aca 539 {
a63e02c7 540 hsh_entry = hh->hsh_cache;
30667bf3
AM
541 }
542 else
543 {
30667bf3 544 char *stub_name;
edd21aca 545
875c0872 546 stub_name = hppa_stub_name (id_sec, sym_sec, hh, rela);
30667bf3
AM
547 if (stub_name == NULL)
548 return NULL;
edd21aca 549
a63e02c7 550 hsh_entry = hppa_stub_hash_lookup (&htab->bstab,
b34976b6 551 stub_name, FALSE, FALSE);
875c0872 552 if (hh != NULL)
a63e02c7 553 hh->hsh_cache = hsh_entry;
30667bf3
AM
554
555 free (stub_name);
edd21aca 556 }
30667bf3 557
a63e02c7 558 return hsh_entry;
30667bf3
AM
559}
560
30667bf3
AM
561/* Add a new stub entry to the stub hash. Not all fields of the new
562 stub entry are initialised. */
563
564static struct elf32_hppa_stub_hash_entry *
c39a58e6
AM
565hppa_add_stub (const char *stub_name,
566 asection *section,
567 struct elf32_hppa_link_hash_table *htab)
30667bf3 568{
25f72752 569 asection *link_sec;
30667bf3 570 asection *stub_sec;
875c0872 571 struct elf32_hppa_stub_hash_entry *hsh;
edd21aca 572
83c81bfe
AM
573 link_sec = htab->stub_group[section->id].link_sec;
574 stub_sec = htab->stub_group[section->id].stub_sec;
30667bf3 575 if (stub_sec == NULL)
edd21aca 576 {
83c81bfe 577 stub_sec = htab->stub_group[link_sec->id].stub_sec;
30667bf3
AM
578 if (stub_sec == NULL)
579 {
d4c88bbb 580 size_t namelen;
dc810e39 581 bfd_size_type len;
30667bf3
AM
582 char *s_name;
583
d4c88bbb
AM
584 namelen = strlen (link_sec->name);
585 len = namelen + sizeof (STUB_SUFFIX);
83c81bfe 586 s_name = bfd_alloc (htab->stub_bfd, len);
30667bf3
AM
587 if (s_name == NULL)
588 return NULL;
589
d4c88bbb
AM
590 memcpy (s_name, link_sec->name, namelen);
591 memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX));
83c81bfe 592 stub_sec = (*htab->add_stub_section) (s_name, link_sec);
30667bf3
AM
593 if (stub_sec == NULL)
594 return NULL;
83c81bfe 595 htab->stub_group[link_sec->id].stub_sec = stub_sec;
30667bf3 596 }
83c81bfe 597 htab->stub_group[section->id].stub_sec = stub_sec;
edd21aca 598 }
252b5132 599
30667bf3 600 /* Enter this entry into the linker stub hash table. */
a63e02c7 601 hsh = hppa_stub_hash_lookup (&htab->bstab, stub_name,
b34976b6 602 TRUE, FALSE);
875c0872 603 if (hsh == NULL)
30667bf3 604 {
d003868e
AM
605 (*_bfd_error_handler) (_("%B: cannot create stub entry %s"),
606 section->owner,
30667bf3
AM
607 stub_name);
608 return NULL;
edd21aca
AM
609 }
610
875c0872
DA
611 hsh->stub_sec = stub_sec;
612 hsh->stub_offset = 0;
613 hsh->id_sec = link_sec;
614 return hsh;
edd21aca
AM
615}
616
30667bf3
AM
617/* Determine the type of stub needed, if any, for a call. */
618
619static enum elf32_hppa_stub_type
c39a58e6 620hppa_type_of_stub (asection *input_sec,
875c0872
DA
621 const Elf_Internal_Rela *rela,
622 struct elf32_hppa_link_hash_entry *hh,
a252afa4
DA
623 bfd_vma destination,
624 struct bfd_link_info *info)
edd21aca 625{
edd21aca 626 bfd_vma location;
30667bf3
AM
627 bfd_vma branch_offset;
628 bfd_vma max_branch_offset;
629 unsigned int r_type;
630
875c0872 631 if (hh != NULL
a63e02c7
DA
632 && hh->eh.plt.offset != (bfd_vma) -1
633 && hh->eh.dynindx != -1
875c0872 634 && !hh->plabel
a252afa4 635 && (info->shared
a63e02c7
DA
636 || !hh->eh.def_regular
637 || hh->eh.root.type == bfd_link_hash_defweak))
30667bf3 638 {
067fa4a6
AM
639 /* We need an import stub. Decide between hppa_stub_import
640 and hppa_stub_import_shared later. */
30667bf3
AM
641 return hppa_stub_import;
642 }
edd21aca 643
30667bf3
AM
644 /* Determine where the call point is. */
645 location = (input_sec->output_offset
646 + input_sec->output_section->vma
875c0872 647 + rela->r_offset);
edd21aca 648
30667bf3 649 branch_offset = destination - location - 8;
875c0872 650 r_type = ELF32_R_TYPE (rela->r_info);
edd21aca 651
30667bf3
AM
652 /* Determine if a long branch stub is needed. parisc branch offsets
653 are relative to the second instruction past the branch, ie. +8
654 bytes on from the branch instruction location. The offset is
655 signed and counts in units of 4 bytes. */
656 if (r_type == (unsigned int) R_PARISC_PCREL17F)
9b52905e
NC
657 max_branch_offset = (1 << (17 - 1)) << 2;
658
30667bf3 659 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
9b52905e
NC
660 max_branch_offset = (1 << (12 - 1)) << 2;
661
25f72752 662 else /* R_PARISC_PCREL22F. */
9b52905e 663 max_branch_offset = (1 << (22 - 1)) << 2;
edd21aca 664
30667bf3 665 if (branch_offset + max_branch_offset >= 2*max_branch_offset)
98ceb8ce
AM
666 return hppa_stub_long_branch;
667
30667bf3
AM
668 return hppa_stub_none;
669}
edd21aca 670
30667bf3
AM
671/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
672 IN_ARG contains the link info pointer. */
edd21aca 673
30667bf3
AM
674#define LDIL_R1 0x20200000 /* ldil LR'XXX,%r1 */
675#define BE_SR4_R1 0xe0202002 /* be,n RR'XXX(%sr4,%r1) */
edd21aca 676
30667bf3 677#define BL_R1 0xe8200000 /* b,l .+8,%r1 */
3ee1d854 678#define ADDIL_R1 0x28200000 /* addil LR'XXX,%r1,%r1 */
30667bf3 679#define DEPI_R1 0xd4201c1e /* depi 0,31,2,%r1 */
252b5132 680
3ee1d854
AM
681#define ADDIL_DP 0x2b600000 /* addil LR'XXX,%dp,%r1 */
682#define LDW_R1_R21 0x48350000 /* ldw RR'XXX(%sr0,%r1),%r21 */
30667bf3 683#define BV_R0_R21 0xeaa0c000 /* bv %r0(%r21) */
3ee1d854 684#define LDW_R1_R19 0x48330000 /* ldw RR'XXX(%sr0,%r1),%r19 */
252b5132 685
3ee1d854
AM
686#define ADDIL_R19 0x2a600000 /* addil LR'XXX,%r19,%r1 */
687#define LDW_R1_DP 0x483b0000 /* ldw RR'XXX(%sr0,%r1),%dp */
edd21aca 688
30667bf3
AM
689#define LDSID_R21_R1 0x02a010a1 /* ldsid (%sr0,%r21),%r1 */
690#define MTSP_R1 0x00011820 /* mtsp %r1,%sr0 */
691#define BE_SR0_R21 0xe2a00000 /* be 0(%sr0,%r21) */
692#define STW_RP 0x6bc23fd1 /* stw %rp,-24(%sr0,%sp) */
edd21aca 693
067fa4a6 694#define BL22_RP 0xe800a002 /* b,l,n XXX,%rp */
30667bf3
AM
695#define BL_RP 0xe8400002 /* b,l,n XXX,%rp */
696#define NOP 0x08000240 /* nop */
697#define LDW_RP 0x4bc23fd1 /* ldw -24(%sr0,%sp),%rp */
698#define LDSID_RP_R1 0x004010a1 /* ldsid (%sr0,%rp),%r1 */
699#define BE_SR0_RP 0xe0400002 /* be,n 0(%sr0,%rp) */
edd21aca 700
30667bf3
AM
701#ifndef R19_STUBS
702#define R19_STUBS 1
703#endif
edd21aca 704
30667bf3
AM
705#if R19_STUBS
706#define LDW_R1_DLT LDW_R1_R19
707#else
708#define LDW_R1_DLT LDW_R1_DP
709#endif
edd21aca 710
b34976b6 711static bfd_boolean
875c0872 712hppa_build_one_stub (struct bfd_hash_entry *bh, void *in_arg)
30667bf3 713{
875c0872 714 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 715 struct bfd_link_info *info;
83c81bfe 716 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
717 asection *stub_sec;
718 bfd *stub_bfd;
719 bfd_byte *loc;
720 bfd_vma sym_value;
74d1c347 721 bfd_vma insn;
8dea1268 722 bfd_vma off;
74d1c347 723 int val;
30667bf3 724 int size;
edd21aca 725
30667bf3 726 /* Massage our args to the form they really have. */
875c0872
DA
727 hsh = hppa_stub_hash_entry (bh);
728 info = (struct bfd_link_info *)in_arg;
30667bf3 729
83c81bfe 730 htab = hppa_link_hash_table (info);
875c0872 731 stub_sec = hsh->stub_sec;
edd21aca 732
30667bf3 733 /* Make a note of the offset within the stubs for this entry. */
875c0872
DA
734 hsh->stub_offset = stub_sec->size;
735 loc = stub_sec->contents + hsh->stub_offset;
252b5132 736
30667bf3
AM
737 stub_bfd = stub_sec->owner;
738
875c0872 739 switch (hsh->stub_type)
30667bf3
AM
740 {
741 case hppa_stub_long_branch:
742 /* Create the long branch. A long branch is formed with "ldil"
743 loading the upper bits of the target address into a register,
744 then branching with "be" which adds in the lower bits.
745 The "be" has its delay slot nullified. */
875c0872
DA
746 sym_value = (hsh->target_value
747 + hsh->target_section->output_offset
748 + hsh->target_section->output_section->vma);
30667bf3 749
c39a58e6 750 val = hppa_field_adjust (sym_value, 0, e_lrsel);
74d1c347 751 insn = hppa_rebuild_insn ((int) LDIL_R1, val, 21);
30667bf3
AM
752 bfd_put_32 (stub_bfd, insn, loc);
753
c39a58e6 754 val = hppa_field_adjust (sym_value, 0, e_rrsel) >> 2;
74d1c347 755 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
756 bfd_put_32 (stub_bfd, insn, loc + 4);
757
30667bf3 758 size = 8;
edd21aca
AM
759 break;
760
30667bf3
AM
761 case hppa_stub_long_branch_shared:
762 /* Branches are relative. This is where we are going to. */
875c0872
DA
763 sym_value = (hsh->target_value
764 + hsh->target_section->output_offset
765 + hsh->target_section->output_section->vma);
30667bf3
AM
766
767 /* And this is where we are coming from, more or less. */
875c0872 768 sym_value -= (hsh->stub_offset
30667bf3
AM
769 + stub_sec->output_offset
770 + stub_sec->output_section->vma);
771
74d1c347 772 bfd_put_32 (stub_bfd, (bfd_vma) BL_R1, loc);
47d89dba 773 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_lrsel);
74d1c347 774 insn = hppa_rebuild_insn ((int) ADDIL_R1, val, 21);
30667bf3
AM
775 bfd_put_32 (stub_bfd, insn, loc + 4);
776
47d89dba 777 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_rrsel) >> 2;
74d1c347 778 insn = hppa_rebuild_insn ((int) BE_SR4_R1, val, 17);
30667bf3
AM
779 bfd_put_32 (stub_bfd, insn, loc + 8);
780 size = 12;
781 break;
edd21aca 782
30667bf3
AM
783 case hppa_stub_import:
784 case hppa_stub_import_shared:
a63e02c7 785 off = hsh->hh->eh.plt.offset;
8dea1268 786 if (off >= (bfd_vma) -2)
49e9d0d3 787 abort ();
8dea1268
AM
788
789 off &= ~ (bfd_vma) 1;
790 sym_value = (off
83c81bfe
AM
791 + htab->splt->output_offset
792 + htab->splt->output_section->vma
793 - elf_gp (htab->splt->output_section->owner));
30667bf3
AM
794
795 insn = ADDIL_DP;
796#if R19_STUBS
875c0872 797 if (hsh->stub_type == hppa_stub_import_shared)
30667bf3
AM
798 insn = ADDIL_R19;
799#endif
c39a58e6 800 val = hppa_field_adjust (sym_value, 0, e_lrsel),
74d1c347 801 insn = hppa_rebuild_insn ((int) insn, val, 21);
30667bf3 802 bfd_put_32 (stub_bfd, insn, loc);
edd21aca 803
47d89dba
AM
804 /* It is critical to use lrsel/rrsel here because we are using
805 two different offsets (+0 and +4) from sym_value. If we use
806 lsel/rsel then with unfortunate sym_values we will round
807 sym_value+4 up to the next 2k block leading to a mis-match
808 between the lsel and rsel value. */
c39a58e6 809 val = hppa_field_adjust (sym_value, 0, e_rrsel);
74d1c347 810 insn = hppa_rebuild_insn ((int) LDW_R1_R21, val, 14);
30667bf3 811 bfd_put_32 (stub_bfd, insn, loc + 4);
252b5132 812
83c81bfe 813 if (htab->multi_subspace)
30667bf3 814 {
47d89dba 815 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 816 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 817 bfd_put_32 (stub_bfd, insn, loc + 8);
252b5132 818
74d1c347
AM
819 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_R21_R1, loc + 12);
820 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
821 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_R21, loc + 20);
822 bfd_put_32 (stub_bfd, (bfd_vma) STW_RP, loc + 24);
252b5132 823
30667bf3
AM
824 size = 28;
825 }
826 else
827 {
74d1c347 828 bfd_put_32 (stub_bfd, (bfd_vma) BV_R0_R21, loc + 8);
47d89dba 829 val = hppa_field_adjust (sym_value, (bfd_signed_vma) 4, e_rrsel);
74d1c347 830 insn = hppa_rebuild_insn ((int) LDW_R1_DLT, val, 14);
30667bf3 831 bfd_put_32 (stub_bfd, insn, loc + 12);
252b5132 832
30667bf3
AM
833 size = 16;
834 }
252b5132 835
30667bf3 836 break;
252b5132 837
30667bf3
AM
838 case hppa_stub_export:
839 /* Branches are relative. This is where we are going to. */
875c0872
DA
840 sym_value = (hsh->target_value
841 + hsh->target_section->output_offset
842 + hsh->target_section->output_section->vma);
252b5132 843
30667bf3 844 /* And this is where we are coming from. */
875c0872 845 sym_value -= (hsh->stub_offset
30667bf3
AM
846 + stub_sec->output_offset
847 + stub_sec->output_section->vma);
edd21aca 848
067fa4a6
AM
849 if (sym_value - 8 + (1 << (17 + 1)) >= (1 << (17 + 2))
850 && (!htab->has_22bit_branch
851 || sym_value - 8 + (1 << (22 + 1)) >= (1 << (22 + 2))))
30667bf3 852 {
edd21aca 853 (*_bfd_error_handler)
d003868e 854 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
875c0872 855 hsh->target_section->owner,
d003868e 856 stub_sec,
875c0872 857 (long) hsh->stub_offset,
a63e02c7 858 hsh->bh_root.string);
30667bf3 859 bfd_set_error (bfd_error_bad_value);
b34976b6 860 return FALSE;
252b5132 861 }
30667bf3 862
74d1c347 863 val = hppa_field_adjust (sym_value, (bfd_signed_vma) -8, e_fsel) >> 2;
067fa4a6
AM
864 if (!htab->has_22bit_branch)
865 insn = hppa_rebuild_insn ((int) BL_RP, val, 17);
866 else
867 insn = hppa_rebuild_insn ((int) BL22_RP, val, 22);
30667bf3
AM
868 bfd_put_32 (stub_bfd, insn, loc);
869
74d1c347
AM
870 bfd_put_32 (stub_bfd, (bfd_vma) NOP, loc + 4);
871 bfd_put_32 (stub_bfd, (bfd_vma) LDW_RP, loc + 8);
872 bfd_put_32 (stub_bfd, (bfd_vma) LDSID_RP_R1, loc + 12);
873 bfd_put_32 (stub_bfd, (bfd_vma) MTSP_R1, loc + 16);
874 bfd_put_32 (stub_bfd, (bfd_vma) BE_SR0_RP, loc + 20);
30667bf3
AM
875
876 /* Point the function symbol at the stub. */
a63e02c7
DA
877 hsh->hh->eh.root.u.def.section = stub_sec;
878 hsh->hh->eh.root.u.def.value = stub_sec->size;
30667bf3
AM
879
880 size = 24;
881 break;
882
883 default:
884 BFD_FAIL ();
b34976b6 885 return FALSE;
252b5132
RH
886 }
887
eea6121a 888 stub_sec->size += size;
b34976b6 889 return TRUE;
252b5132
RH
890}
891
30667bf3
AM
892#undef LDIL_R1
893#undef BE_SR4_R1
894#undef BL_R1
895#undef ADDIL_R1
896#undef DEPI_R1
30667bf3
AM
897#undef LDW_R1_R21
898#undef LDW_R1_DLT
899#undef LDW_R1_R19
900#undef ADDIL_R19
901#undef LDW_R1_DP
902#undef LDSID_R21_R1
903#undef MTSP_R1
904#undef BE_SR0_R21
905#undef STW_RP
906#undef BV_R0_R21
907#undef BL_RP
908#undef NOP
909#undef LDW_RP
910#undef LDSID_RP_R1
911#undef BE_SR0_RP
252b5132 912
30667bf3
AM
913/* As above, but don't actually build the stub. Just bump offset so
914 we know stub section sizes. */
915
b34976b6 916static bfd_boolean
875c0872 917hppa_size_one_stub (struct bfd_hash_entry *bh, void *in_arg)
252b5132 918{
875c0872 919 struct elf32_hppa_stub_hash_entry *hsh;
83c81bfe 920 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
921 int size;
922
923 /* Massage our args to the form they really have. */
875c0872 924 hsh = hppa_stub_hash_entry (bh);
c39a58e6 925 htab = in_arg;
30667bf3 926
875c0872 927 if (hsh->stub_type == hppa_stub_long_branch)
98ceb8ce 928 size = 8;
875c0872 929 else if (hsh->stub_type == hppa_stub_long_branch_shared)
30667bf3 930 size = 12;
875c0872 931 else if (hsh->stub_type == hppa_stub_export)
30667bf3 932 size = 24;
74d1c347 933 else /* hppa_stub_import or hppa_stub_import_shared. */
252b5132 934 {
83c81bfe 935 if (htab->multi_subspace)
30667bf3
AM
936 size = 28;
937 else
938 size = 16;
939 }
252b5132 940
875c0872 941 hsh->stub_sec->size += size;
b34976b6 942 return TRUE;
30667bf3 943}
252b5132 944
30667bf3
AM
945/* Return nonzero if ABFD represents an HPPA ELF32 file.
946 Additionally we set the default architecture and machine. */
947
b34976b6 948static bfd_boolean
c39a58e6 949elf32_hppa_object_p (bfd *abfd)
30667bf3 950{
24a5e751
L
951 Elf_Internal_Ehdr * i_ehdrp;
952 unsigned int flags;
252b5132 953
24a5e751
L
954 i_ehdrp = elf_elfheader (abfd);
955 if (strcmp (bfd_get_target (abfd), "elf32-hppa-linux") == 0)
956 {
6c21aa76
NC
957 /* GCC on hppa-linux produces binaries with OSABI=Linux,
958 but the kernel produces corefiles with OSABI=SysV. */
959 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_LINUX &&
960 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
b34976b6 961 return FALSE;
24a5e751 962 }
225247f0
JT
963 else if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0)
964 {
965 /* GCC on hppa-netbsd produces binaries with OSABI=NetBSD,
966 but the kernel produces corefiles with OSABI=SysV. */
967 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NETBSD &&
968 i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_NONE) /* aka SYSV */
969 return FALSE;
970 }
24a5e751
L
971 else
972 {
973 if (i_ehdrp->e_ident[EI_OSABI] != ELFOSABI_HPUX)
b34976b6 974 return FALSE;
24a5e751
L
975 }
976
977 flags = i_ehdrp->e_flags;
30667bf3
AM
978 switch (flags & (EF_PARISC_ARCH | EF_PARISC_WIDE))
979 {
980 case EFA_PARISC_1_0:
981 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 10);
982 case EFA_PARISC_1_1:
983 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 11);
984 case EFA_PARISC_2_0:
985 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 20);
986 case EFA_PARISC_2_0 | EF_PARISC_WIDE:
987 return bfd_default_set_arch_mach (abfd, bfd_arch_hppa, 25);
988 }
b34976b6 989 return TRUE;
252b5132
RH
990}
991
30667bf3
AM
992/* Create the .plt and .got sections, and set up our hash table
993 short-cuts to various dynamic sections. */
994
b34976b6 995static bfd_boolean
c39a58e6 996elf32_hppa_create_dynamic_sections (bfd *abfd, struct bfd_link_info *info)
252b5132 997{
83c81bfe 998 struct elf32_hppa_link_hash_table *htab;
875c0872 999 struct elf_link_hash_entry *eh;
edd21aca 1000
30667bf3 1001 /* Don't try to create the .plt and .got twice. */
83c81bfe
AM
1002 htab = hppa_link_hash_table (info);
1003 if (htab->splt != NULL)
b34976b6 1004 return TRUE;
edd21aca 1005
30667bf3
AM
1006 /* Call the generic code to do most of the work. */
1007 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 1008 return FALSE;
252b5132 1009
83c81bfe
AM
1010 htab->splt = bfd_get_section_by_name (abfd, ".plt");
1011 htab->srelplt = bfd_get_section_by_name (abfd, ".rela.plt");
30667bf3 1012
83c81bfe 1013 htab->sgot = bfd_get_section_by_name (abfd, ".got");
3496cb2a
L
1014 htab->srelgot = bfd_make_section_with_flags (abfd, ".rela.got",
1015 (SEC_ALLOC
1016 | SEC_LOAD
1017 | SEC_HAS_CONTENTS
1018 | SEC_IN_MEMORY
1019 | SEC_LINKER_CREATED
1020 | SEC_READONLY));
83c81bfe 1021 if (htab->srelgot == NULL
83c81bfe 1022 || ! bfd_set_section_alignment (abfd, htab->srelgot, 2))
b34976b6 1023 return FALSE;
edd21aca 1024
83c81bfe
AM
1025 htab->sdynbss = bfd_get_section_by_name (abfd, ".dynbss");
1026 htab->srelbss = bfd_get_section_by_name (abfd, ".rela.bss");
30667bf3 1027
b18e2ae5
AM
1028 /* hppa-linux needs _GLOBAL_OFFSET_TABLE_ to be visible from the main
1029 application, because __canonicalize_funcptr_for_compare needs it. */
875c0872
DA
1030 eh = elf_hash_table (info)->hgot;
1031 eh->forced_local = 0;
1032 eh->other = STV_DEFAULT;
1033 return bfd_elf_link_record_dynamic_symbol (info, eh);
30667bf3
AM
1034}
1035
ebe50bae
AM
1036/* Copy the extra info we tack onto an elf_link_hash_entry. */
1037
51b64d56 1038static void
fcfa13d2 1039elf32_hppa_copy_indirect_symbol (struct bfd_link_info *info,
875c0872
DA
1040 struct elf_link_hash_entry *eh_dir,
1041 struct elf_link_hash_entry *eh_ind)
ebe50bae 1042{
875c0872 1043 struct elf32_hppa_link_hash_entry *hh_dir, *hh_ind;
ebe50bae 1044
875c0872
DA
1045 hh_dir = hppa_elf_hash_entry (eh_dir);
1046 hh_ind = hppa_elf_hash_entry (eh_ind);
ebe50bae 1047
875c0872 1048 if (hh_ind->dyn_relocs != NULL)
ebe50bae 1049 {
875c0872 1050 if (hh_dir->dyn_relocs != NULL)
bbd7ec4a 1051 {
875c0872
DA
1052 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
1053 struct elf32_hppa_dyn_reloc_entry *hdh_p;
bbd7ec4a 1054
fcfa13d2 1055 /* Add reloc counts against the indirect sym to the direct sym
bbd7ec4a 1056 list. Merge any entries against the same section. */
875c0872 1057 for (hdh_pp = &hh_ind->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
bbd7ec4a 1058 {
875c0872 1059 struct elf32_hppa_dyn_reloc_entry *hdh_q;
bbd7ec4a 1060
fcfa13d2
AM
1061 for (hdh_q = hh_dir->dyn_relocs;
1062 hdh_q != NULL;
1063 hdh_q = hdh_q->hdh_next)
875c0872 1064 if (hdh_q->sec == hdh_p->sec)
bbd7ec4a
AM
1065 {
1066#if RELATIVE_DYNRELOCS
875c0872 1067 hdh_q->relative_count += hdh_p->relative_count;
bbd7ec4a 1068#endif
875c0872 1069 hdh_q->count += hdh_p->count;
a63e02c7 1070 *hdh_pp = hdh_p->hdh_next;
bbd7ec4a
AM
1071 break;
1072 }
875c0872 1073 if (hdh_q == NULL)
a63e02c7 1074 hdh_pp = &hdh_p->hdh_next;
bbd7ec4a 1075 }
875c0872 1076 *hdh_pp = hh_dir->dyn_relocs;
bbd7ec4a
AM
1077 }
1078
875c0872
DA
1079 hh_dir->dyn_relocs = hh_ind->dyn_relocs;
1080 hh_ind->dyn_relocs = NULL;
ebe50bae 1081 }
ebe50bae 1082
4fc8051d 1083 if (ELIMINATE_COPY_RELOCS
875c0872
DA
1084 && eh_ind->root.type != bfd_link_hash_indirect
1085 && eh_dir->dynamic_adjusted)
f5385ebf
AM
1086 {
1087 /* If called to transfer flags for a weakdef during processing
1088 of elf_adjust_dynamic_symbol, don't copy non_got_ref.
1089 We clear it ourselves for ELIMINATE_COPY_RELOCS. */
875c0872
DA
1090 eh_dir->ref_dynamic |= eh_ind->ref_dynamic;
1091 eh_dir->ref_regular |= eh_ind->ref_regular;
1092 eh_dir->ref_regular_nonweak |= eh_ind->ref_regular_nonweak;
1093 eh_dir->needs_plt |= eh_ind->needs_plt;
f5385ebf 1094 }
4fc8051d 1095 else
9b52905e
NC
1096 {
1097 if (eh_ind->root.type == bfd_link_hash_indirect
1098 && eh_dir->got.refcount <= 0)
1099 {
1100 hh_dir->tls_type = hh_ind->tls_type;
1101 hh_ind->tls_type = GOT_UNKNOWN;
1102 }
1103
1104 _bfd_elf_link_hash_copy_indirect (info, eh_dir, eh_ind);
1105 }
1106}
1107
1108static int
1109elf32_hppa_optimized_tls_reloc (struct bfd_link_info *info ATTRIBUTE_UNUSED,
1110 int r_type, int is_local ATTRIBUTE_UNUSED)
1111{
1112 /* For now we don't support linker optimizations. */
1113 return r_type;
ebe50bae
AM
1114}
1115
30667bf3 1116/* Look through the relocs for a section during the first phase, and
3ac8354b
AM
1117 calculate needed space in the global offset table, procedure linkage
1118 table, and dynamic reloc sections. At this point we haven't
1119 necessarily read all the input files. */
252b5132 1120
b34976b6 1121static bfd_boolean
c39a58e6
AM
1122elf32_hppa_check_relocs (bfd *abfd,
1123 struct bfd_link_info *info,
1124 asection *sec,
1125 const Elf_Internal_Rela *relocs)
252b5132 1126{
30667bf3 1127 Elf_Internal_Shdr *symtab_hdr;
875c0872
DA
1128 struct elf_link_hash_entry **eh_syms;
1129 const Elf_Internal_Rela *rela;
1130 const Elf_Internal_Rela *rela_end;
83c81bfe 1131 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
1132 asection *sreloc;
1133 asection *stubreloc;
9b52905e 1134 int tls_type = GOT_UNKNOWN, old_tls_type = GOT_UNKNOWN;
30667bf3 1135
1049f94e 1136 if (info->relocatable)
b34976b6 1137 return TRUE;
30667bf3 1138
83c81bfe 1139 htab = hppa_link_hash_table (info);
30667bf3 1140 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
875c0872 1141 eh_syms = elf_sym_hashes (abfd);
30667bf3
AM
1142 sreloc = NULL;
1143 stubreloc = NULL;
1144
875c0872
DA
1145 rela_end = relocs + sec->reloc_count;
1146 for (rela = relocs; rela < rela_end; rela++)
30667bf3
AM
1147 {
1148 enum {
1149 NEED_GOT = 1,
1150 NEED_PLT = 2,
1151 NEED_DYNREL = 4,
98ceb8ce 1152 PLT_PLABEL = 8
30667bf3 1153 };
edd21aca 1154
30667bf3 1155 unsigned int r_symndx, r_type;
875c0872
DA
1156 struct elf32_hppa_link_hash_entry *hh;
1157 int need_entry = 0;
252b5132 1158
875c0872 1159 r_symndx = ELF32_R_SYM (rela->r_info);
252b5132 1160
30667bf3 1161 if (r_symndx < symtab_hdr->sh_info)
875c0872 1162 hh = NULL;
30667bf3 1163 else
f7c5057a 1164 {
875c0872 1165 hh = hppa_elf_hash_entry (eh_syms[r_symndx - symtab_hdr->sh_info]);
a63e02c7
DA
1166 while (hh->eh.root.type == bfd_link_hash_indirect
1167 || hh->eh.root.type == bfd_link_hash_warning)
1168 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
f7c5057a 1169 }
252b5132 1170
875c0872 1171 r_type = ELF32_R_TYPE (rela->r_info);
9b52905e 1172 r_type = elf32_hppa_optimized_tls_reloc (info, r_type, hh == NULL);
252b5132 1173
30667bf3
AM
1174 switch (r_type)
1175 {
1176 case R_PARISC_DLTIND14F:
1177 case R_PARISC_DLTIND14R:
1178 case R_PARISC_DLTIND21L:
1179 /* This symbol requires a global offset table entry. */
1180 need_entry = NEED_GOT;
30667bf3
AM
1181 break;
1182
1183 case R_PARISC_PLABEL14R: /* "Official" procedure labels. */
1184 case R_PARISC_PLABEL21L:
1185 case R_PARISC_PLABEL32:
74d1c347 1186 /* If the addend is non-zero, we break badly. */
875c0872 1187 if (rela->r_addend != 0)
49e9d0d3 1188 abort ();
74d1c347
AM
1189
1190 /* If we are creating a shared library, then we need to
1191 create a PLT entry for all PLABELs, because PLABELs with
1192 local symbols may be passed via a pointer to another
1193 object. Additionally, output a dynamic relocation
4dc86686 1194 pointing to the PLT entry.
875c0872 1195
4dc86686
AM
1196 For executables, the original 32-bit ABI allowed two
1197 different styles of PLABELs (function pointers): For
1198 global functions, the PLABEL word points into the .plt
1199 two bytes past a (function address, gp) pair, and for
1200 local functions the PLABEL points directly at the
1201 function. The magic +2 for the first type allows us to
1202 differentiate between the two. As you can imagine, this
1203 is a real pain when it comes to generating code to call
1204 functions indirectly or to compare function pointers.
1205 We avoid the mess by always pointing a PLABEL into the
1206 .plt, even for local functions. */
74d1c347 1207 need_entry = PLT_PLABEL | NEED_PLT | NEED_DYNREL;
30667bf3
AM
1208 break;
1209
1210 case R_PARISC_PCREL12F:
83c81bfe 1211 htab->has_12bit_branch = 1;
067fa4a6
AM
1212 goto branch_common;
1213
30667bf3
AM
1214 case R_PARISC_PCREL17C:
1215 case R_PARISC_PCREL17F:
83c81bfe 1216 htab->has_17bit_branch = 1;
067fa4a6
AM
1217 goto branch_common;
1218
30667bf3 1219 case R_PARISC_PCREL22F:
067fa4a6
AM
1220 htab->has_22bit_branch = 1;
1221 branch_common:
47d89dba
AM
1222 /* Function calls might need to go through the .plt, and
1223 might require long branch stubs. */
875c0872 1224 if (hh == NULL)
30667bf3
AM
1225 {
1226 /* We know local syms won't need a .plt entry, and if
1227 they need a long branch stub we can't guarantee that
1228 we can reach the stub. So just flag an error later
1229 if we're doing a shared link and find we need a long
1230 branch stub. */
1231 continue;
1232 }
1233 else
1234 {
1235 /* Global symbols will need a .plt entry if they remain
1236 global, and in most cases won't need a long branch
1237 stub. Unfortunately, we have to cater for the case
1238 where a symbol is forced local by versioning, or due
1239 to symbolic linking, and we lose the .plt entry. */
98ceb8ce 1240 need_entry = NEED_PLT;
a63e02c7 1241 if (hh->eh.type == STT_PARISC_MILLI)
98ceb8ce 1242 need_entry = 0;
30667bf3
AM
1243 }
1244 break;
1245
36751eee 1246 case R_PARISC_SEGBASE: /* Used to set segment base. */
c46b7515 1247 case R_PARISC_SEGREL32: /* Relative reloc, used for unwind. */
30667bf3
AM
1248 case R_PARISC_PCREL14F: /* PC relative load/store. */
1249 case R_PARISC_PCREL14R:
1250 case R_PARISC_PCREL17R: /* External branches. */
1251 case R_PARISC_PCREL21L: /* As above, and for load/store too. */
36751eee 1252 case R_PARISC_PCREL32:
30667bf3
AM
1253 /* We don't need to propagate the relocation if linking a
1254 shared object since these are section relative. */
1255 continue;
1256
1257 case R_PARISC_DPREL14F: /* Used for gp rel data load/store. */
1258 case R_PARISC_DPREL14R:
1259 case R_PARISC_DPREL21L:
1260 if (info->shared)
1261 {
1262 (*_bfd_error_handler)
d003868e
AM
1263 (_("%B: relocation %s can not be used when making a shared object; recompile with -fPIC"),
1264 abfd,
30667bf3
AM
1265 elf_hppa_howto_table[r_type].name);
1266 bfd_set_error (bfd_error_bad_value);
b34976b6 1267 return FALSE;
30667bf3
AM
1268 }
1269 /* Fall through. */
1270
1271 case R_PARISC_DIR17F: /* Used for external branches. */
1272 case R_PARISC_DIR17R:
47d89dba
AM
1273 case R_PARISC_DIR14F: /* Used for load/store from absolute locn. */
1274 case R_PARISC_DIR14R:
30667bf3 1275 case R_PARISC_DIR21L: /* As above, and for ext branches too. */
c46b7515 1276 case R_PARISC_DIR32: /* .word relocs. */
30667bf3
AM
1277 /* We may want to output a dynamic relocation later. */
1278 need_entry = NEED_DYNREL;
1279 break;
1280
1281 /* This relocation describes the C++ object vtable hierarchy.
1282 Reconstruct it for later use during GC. */
1283 case R_PARISC_GNU_VTINHERIT:
a63e02c7 1284 if (!bfd_elf_gc_record_vtinherit (abfd, sec, &hh->eh, rela->r_offset))
b34976b6 1285 return FALSE;
30667bf3
AM
1286 continue;
1287
1288 /* This relocation describes which C++ vtable entries are actually
1289 used. Record for later use during GC. */
1290 case R_PARISC_GNU_VTENTRY:
d17e0c6e
JB
1291 BFD_ASSERT (hh != NULL);
1292 if (hh != NULL
1293 && !bfd_elf_gc_record_vtentry (abfd, sec, &hh->eh, rela->r_addend))
b34976b6 1294 return FALSE;
30667bf3
AM
1295 continue;
1296
9b52905e
NC
1297 case R_PARISC_TLS_GD21L:
1298 case R_PARISC_TLS_GD14R:
1299 case R_PARISC_TLS_LDM21L:
1300 case R_PARISC_TLS_LDM14R:
1301 need_entry = NEED_GOT;
1302 break;
1303
1304 case R_PARISC_TLS_IE21L:
1305 case R_PARISC_TLS_IE14R:
1306 if (info->shared)
1307 info->flags |= DF_STATIC_TLS;
1308 need_entry = NEED_GOT;
1309 break;
1310
30667bf3
AM
1311 default:
1312 continue;
1313 }
1314
1315 /* Now carry out our orders. */
1316 if (need_entry & NEED_GOT)
1317 {
9b52905e
NC
1318 switch (r_type)
1319 {
1320 default:
1321 tls_type = GOT_NORMAL;
1322 break;
1323 case R_PARISC_TLS_GD21L:
1324 case R_PARISC_TLS_GD14R:
1325 tls_type |= GOT_TLS_GD;
1326 break;
1327 case R_PARISC_TLS_LDM21L:
1328 case R_PARISC_TLS_LDM14R:
1329 tls_type |= GOT_TLS_LDM;
1330 break;
1331 case R_PARISC_TLS_IE21L:
1332 case R_PARISC_TLS_IE14R:
1333 tls_type |= GOT_TLS_IE;
1334 break;
1335 }
1336
30667bf3 1337 /* Allocate space for a GOT entry, as well as a dynamic
25f72752 1338 relocation for this entry. */
83c81bfe 1339 if (htab->sgot == NULL)
30667bf3 1340 {
a63e02c7
DA
1341 if (htab->etab.dynobj == NULL)
1342 htab->etab.dynobj = abfd;
1343 if (!elf32_hppa_create_dynamic_sections (htab->etab.dynobj, info))
b34976b6 1344 return FALSE;
30667bf3
AM
1345 }
1346
9b52905e
NC
1347 if (r_type == R_PARISC_TLS_LDM21L
1348 || r_type == R_PARISC_TLS_LDM14R)
1349 hppa_link_hash_table (info)->tls_ldm_got.refcount += 1;
30667bf3
AM
1350 else
1351 {
9b52905e
NC
1352 if (hh != NULL)
1353 {
1354 hh->eh.got.refcount += 1;
1355 old_tls_type = hh->tls_type;
1356 }
1357 else
1358 {
1359 bfd_signed_vma *local_got_refcounts;
1360
1361 /* This is a global offset table entry for a local symbol. */
1362 local_got_refcounts = elf_local_got_refcounts (abfd);
1363 if (local_got_refcounts == NULL)
1364 {
1365 bfd_size_type size;
1366
1367 /* Allocate space for local got offsets and local
1368 plt offsets. Done this way to save polluting
1369 elf_obj_tdata with another target specific
1370 pointer. */
1371 size = symtab_hdr->sh_info;
1372 size *= 2 * sizeof (bfd_signed_vma);
1373 /* Add in space to store the local GOT TLS types. */
1374 size += symtab_hdr->sh_info;
1375 local_got_refcounts = bfd_zalloc (abfd, size);
1376 if (local_got_refcounts == NULL)
1377 return FALSE;
1378 elf_local_got_refcounts (abfd) = local_got_refcounts;
1379 memset (hppa_elf_local_got_tls_type (abfd),
1380 GOT_UNKNOWN, symtab_hdr->sh_info);
1381 }
1382 local_got_refcounts[r_symndx] += 1;
1383
1384 old_tls_type = hppa_elf_local_got_tls_type (abfd) [r_symndx];
1385 }
1386
1387 tls_type |= old_tls_type;
1388
1389 if (old_tls_type != tls_type)
1390 {
1391 if (hh != NULL)
1392 hh->tls_type = tls_type;
1393 else
1394 hppa_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
1395 }
1396
30667bf3
AM
1397 }
1398 }
1399
1400 if (need_entry & NEED_PLT)
1401 {
1402 /* If we are creating a shared library, and this is a reloc
1403 against a weak symbol or a global symbol in a dynamic
1404 object, then we will be creating an import stub and a
1405 .plt entry for the symbol. Similarly, on a normal link
1406 to symbols defined in a dynamic object we'll need the
1407 import stub and a .plt entry. We don't know yet whether
1408 the symbol is defined or not, so make an entry anyway and
1409 clean up later in adjust_dynamic_symbol. */
1410 if ((sec->flags & SEC_ALLOC) != 0)
1411 {
875c0872 1412 if (hh != NULL)
30667bf3 1413 {
a63e02c7
DA
1414 hh->eh.needs_plt = 1;
1415 hh->eh.plt.refcount += 1;
74d1c347 1416
36605136
AM
1417 /* If this .plt entry is for a plabel, mark it so
1418 that adjust_dynamic_symbol will keep the entry
1419 even if it appears to be local. */
74d1c347 1420 if (need_entry & PLT_PLABEL)
875c0872 1421 hh->plabel = 1;
74d1c347
AM
1422 }
1423 else if (need_entry & PLT_PLABEL)
1424 {
3ac8354b 1425 bfd_signed_vma *local_got_refcounts;
68fb2e56 1426 bfd_signed_vma *local_plt_refcounts;
74d1c347 1427
3ac8354b 1428 local_got_refcounts = elf_local_got_refcounts (abfd);
74d1c347
AM
1429 if (local_got_refcounts == NULL)
1430 {
dc810e39 1431 bfd_size_type size;
74d1c347
AM
1432
1433 /* Allocate space for local got offsets and local
1434 plt offsets. */
dc810e39
AM
1435 size = symtab_hdr->sh_info;
1436 size *= 2 * sizeof (bfd_signed_vma);
9b52905e
NC
1437 /* Add in space to store the local GOT TLS types. */
1438 size += symtab_hdr->sh_info;
c39a58e6 1439 local_got_refcounts = bfd_zalloc (abfd, size);
74d1c347 1440 if (local_got_refcounts == NULL)
b34976b6 1441 return FALSE;
74d1c347 1442 elf_local_got_refcounts (abfd) = local_got_refcounts;
74d1c347 1443 }
68fb2e56
AM
1444 local_plt_refcounts = (local_got_refcounts
1445 + symtab_hdr->sh_info);
ebe50bae 1446 local_plt_refcounts[r_symndx] += 1;
30667bf3 1447 }
30667bf3
AM
1448 }
1449 }
1450
98ceb8ce 1451 if (need_entry & NEED_DYNREL)
30667bf3
AM
1452 {
1453 /* Flag this symbol as having a non-got, non-plt reference
1454 so that we generate copy relocs if it turns out to be
1455 dynamic. */
875c0872 1456 if (hh != NULL && !info->shared)
a63e02c7 1457 hh->eh.non_got_ref = 1;
30667bf3
AM
1458
1459 /* If we are creating a shared library then we need to copy
1460 the reloc into the shared library. However, if we are
1461 linking with -Bsymbolic, we need only copy absolute
1462 relocs or relocs against symbols that are not defined in
1463 an object we are including in the link. PC- or DP- or
1464 DLT-relative relocs against any local sym or global sym
1465 with DEF_REGULAR set, can be discarded. At this point we
1466 have not seen all the input files, so it is possible that
1467 DEF_REGULAR is not set now but will be set later (it is
1468 never cleared). We account for that possibility below by
98ceb8ce 1469 storing information in the dyn_relocs field of the
30667bf3
AM
1470 hash table entry.
1471
1472 A similar situation to the -Bsymbolic case occurs when
1473 creating shared libraries and symbol visibility changes
1474 render the symbol local.
1475
1476 As it turns out, all the relocs we will be creating here
1477 are absolute, so we cannot remove them on -Bsymbolic
1478 links or visibility changes anyway. A STUB_REL reloc
1479 is absolute too, as in that case it is the reloc in the
1480 stub we will be creating, rather than copying the PCREL
56882138
AM
1481 reloc in the branch.
1482
1483 If on the other hand, we are creating an executable, we
1484 may need to keep relocations for symbols satisfied by a
1485 dynamic library if we manage to avoid copy relocs for the
1486 symbol. */
446f2863
AM
1487 if ((info->shared
1488 && (sec->flags & SEC_ALLOC) != 0
1489 && (IS_ABSOLUTE_RELOC (r_type)
875c0872 1490 || (hh != NULL
446f2863 1491 && (!info->symbolic
a63e02c7
DA
1492 || hh->eh.root.type == bfd_link_hash_defweak
1493 || !hh->eh.def_regular))))
4fc8051d
AM
1494 || (ELIMINATE_COPY_RELOCS
1495 && !info->shared
446f2863 1496 && (sec->flags & SEC_ALLOC) != 0
875c0872 1497 && hh != NULL
a63e02c7
DA
1498 && (hh->eh.root.type == bfd_link_hash_defweak
1499 || !hh->eh.def_regular)))
30667bf3 1500 {
875c0872
DA
1501 struct elf32_hppa_dyn_reloc_entry *hdh_p;
1502 struct elf32_hppa_dyn_reloc_entry **hdh_head;
ec338859 1503
30667bf3
AM
1504 /* Create a reloc section in dynobj and make room for
1505 this reloc. */
98ceb8ce 1506 if (sreloc == NULL)
30667bf3 1507 {
a63e02c7
DA
1508 if (htab->etab.dynobj == NULL)
1509 htab->etab.dynobj = abfd;
3ac8354b 1510
83bac4b0
NC
1511 sreloc = _bfd_elf_make_dynamic_reloc_section
1512 (sec, htab->etab.dynobj, 2, abfd, /*rela?*/ TRUE);
1513
98ceb8ce 1514 if (sreloc == NULL)
30667bf3 1515 {
83bac4b0
NC
1516 bfd_set_error (bfd_error_bad_value);
1517 return FALSE;
30667bf3 1518 }
30667bf3
AM
1519 }
1520
98ceb8ce
AM
1521 /* If this is a global symbol, we count the number of
1522 relocations we need for this symbol. */
875c0872 1523 if (hh != NULL)
30667bf3 1524 {
875c0872 1525 hdh_head = &hh->dyn_relocs;
ec338859
AM
1526 }
1527 else
1528 {
1529 /* Track dynamic relocs needed for local syms too.
1530 We really need local syms available to do this
1531 easily. Oh well. */
1532
875c0872 1533 asection *sr;
6edfbbad
DJ
1534 void *vpp;
1535
875c0872
DA
1536 sr = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
1537 sec, r_symndx);
1538 if (sr == NULL)
b34976b6 1539 return FALSE;
30667bf3 1540
6edfbbad
DJ
1541 vpp = &elf_section_data (sr)->local_dynrel;
1542 hdh_head = (struct elf32_hppa_dyn_reloc_entry **) vpp;
ec338859
AM
1543 }
1544
875c0872
DA
1545 hdh_p = *hdh_head;
1546 if (hdh_p == NULL || hdh_p->sec != sec)
ec338859 1547 {
a63e02c7 1548 hdh_p = bfd_alloc (htab->etab.dynobj, sizeof *hdh_p);
875c0872 1549 if (hdh_p == NULL)
b34976b6 1550 return FALSE;
a63e02c7 1551 hdh_p->hdh_next = *hdh_head;
875c0872
DA
1552 *hdh_head = hdh_p;
1553 hdh_p->sec = sec;
1554 hdh_p->count = 0;
98ceb8ce 1555#if RELATIVE_DYNRELOCS
875c0872 1556 hdh_p->relative_count = 0;
98ceb8ce 1557#endif
ec338859 1558 }
98ceb8ce 1559
875c0872 1560 hdh_p->count += 1;
98ceb8ce 1561#if RELATIVE_DYNRELOCS
ec338859 1562 if (!IS_ABSOLUTE_RELOC (rtype))
875c0872 1563 hdh_p->relative_count += 1;
98ceb8ce 1564#endif
30667bf3
AM
1565 }
1566 }
1567 }
edd21aca 1568
b34976b6 1569 return TRUE;
edd21aca
AM
1570}
1571
30667bf3
AM
1572/* Return the section that should be marked against garbage collection
1573 for a given relocation. */
1574
1575static asection *
c39a58e6 1576elf32_hppa_gc_mark_hook (asection *sec,
07adf181 1577 struct bfd_link_info *info,
875c0872
DA
1578 Elf_Internal_Rela *rela,
1579 struct elf_link_hash_entry *hh,
c39a58e6 1580 Elf_Internal_Sym *sym)
30667bf3 1581{
875c0872 1582 if (hh != NULL)
07adf181
AM
1583 switch ((unsigned int) ELF32_R_TYPE (rela->r_info))
1584 {
1585 case R_PARISC_GNU_VTINHERIT:
1586 case R_PARISC_GNU_VTENTRY:
1587 return NULL;
1588 }
30667bf3 1589
07adf181 1590 return _bfd_elf_gc_mark_hook (sec, info, rela, hh, sym);
30667bf3
AM
1591}
1592
30667bf3
AM
1593/* Update the got and plt entry reference counts for the section being
1594 removed. */
edd21aca 1595
b34976b6 1596static bfd_boolean
c39a58e6
AM
1597elf32_hppa_gc_sweep_hook (bfd *abfd,
1598 struct bfd_link_info *info ATTRIBUTE_UNUSED,
1599 asection *sec,
1600 const Elf_Internal_Rela *relocs)
edd21aca 1601{
30667bf3 1602 Elf_Internal_Shdr *symtab_hdr;
875c0872 1603 struct elf_link_hash_entry **eh_syms;
30667bf3 1604 bfd_signed_vma *local_got_refcounts;
74d1c347 1605 bfd_signed_vma *local_plt_refcounts;
875c0872 1606 const Elf_Internal_Rela *rela, *relend;
30667bf3 1607
7dda2462
TG
1608 if (info->relocatable)
1609 return TRUE;
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:
1675 hppa_link_hash_table (info)->tls_ldm_got.refcount -= 1;
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 */
1730 elf_tdata (abfd)->core_pid = bfd_get_32 (abfd, note->descdata + 24);
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
9b52905e 1792 if (! hppa_elf_hash_entry (eh)->plabel)
74d1c347 1793 {
875c0872
DA
1794 eh->needs_plt = 0;
1795 eh->plt = elf_hash_table (info)->init_plt_refcount;
74d1c347
AM
1796 }
1797}
1798
30667bf3
AM
1799/* Adjust a symbol defined by a dynamic object and referenced by a
1800 regular object. The current definition is in some section of the
1801 dynamic object, but we're not including those sections. We have to
1802 change the definition to something the rest of the link can
1803 understand. */
252b5132 1804
b34976b6 1805static bfd_boolean
c39a58e6 1806elf32_hppa_adjust_dynamic_symbol (struct bfd_link_info *info,
875c0872 1807 struct elf_link_hash_entry *eh)
252b5132 1808{
83c81bfe 1809 struct elf32_hppa_link_hash_table *htab;
875c0872 1810 asection *sec;
30667bf3
AM
1811
1812 /* If this is a function, put it in the procedure linkage table. We
067fa4a6 1813 will fill in the contents of the procedure linkage table later. */
875c0872
DA
1814 if (eh->type == STT_FUNC
1815 || eh->needs_plt)
30667bf3 1816 {
875c0872
DA
1817 if (eh->plt.refcount <= 0
1818 || (eh->def_regular
1819 && eh->root.type != bfd_link_hash_defweak
1820 && ! hppa_elf_hash_entry (eh)->plabel
30667bf3
AM
1821 && (!info->shared || info->symbolic)))
1822 {
1823 /* The .plt entry is not needed when:
1824 a) Garbage collection has removed all references to the
1825 symbol, or
1826 b) We know for certain the symbol is defined in this
74d1c347
AM
1827 object, and it's not a weak definition, nor is the symbol
1828 used by a plabel relocation. Either this object is the
1829 application or we are doing a shared symbolic link. */
1830
875c0872
DA
1831 eh->plt.offset = (bfd_vma) -1;
1832 eh->needs_plt = 0;
30667bf3 1833 }
4dc86686 1834
b34976b6 1835 return TRUE;
30667bf3 1836 }
bbd7ec4a 1837 else
875c0872 1838 eh->plt.offset = (bfd_vma) -1;
edd21aca 1839
30667bf3
AM
1840 /* If this is a weak symbol, and there is a real definition, the
1841 processor independent code will have arranged for us to see the
1842 real definition first, and we can just use the same value. */
875c0872 1843 if (eh->u.weakdef != NULL)
edd21aca 1844 {
875c0872
DA
1845 if (eh->u.weakdef->root.type != bfd_link_hash_defined
1846 && eh->u.weakdef->root.type != bfd_link_hash_defweak)
49e9d0d3 1847 abort ();
875c0872
DA
1848 eh->root.u.def.section = eh->u.weakdef->root.u.def.section;
1849 eh->root.u.def.value = eh->u.weakdef->root.u.def.value;
4fc8051d 1850 if (ELIMINATE_COPY_RELOCS)
875c0872 1851 eh->non_got_ref = eh->u.weakdef->non_got_ref;
b34976b6 1852 return TRUE;
30667bf3 1853 }
edd21aca 1854
30667bf3
AM
1855 /* This is a reference to a symbol defined by a dynamic object which
1856 is not a function. */
1857
1858 /* If we are creating a shared library, we must presume that the
1859 only references to the symbol are via the global offset table.
1860 For such cases we need not do anything here; the relocations will
1861 be handled correctly by relocate_section. */
1862 if (info->shared)
b34976b6 1863 return TRUE;
30667bf3
AM
1864
1865 /* If there are no references to this symbol that do not use the
1866 GOT, we don't need to generate a copy reloc. */
875c0872 1867 if (!eh->non_got_ref)
b34976b6 1868 return TRUE;
30667bf3 1869
4fc8051d 1870 if (ELIMINATE_COPY_RELOCS)
ebe50bae 1871 {
875c0872
DA
1872 struct elf32_hppa_link_hash_entry *hh;
1873 struct elf32_hppa_dyn_reloc_entry *hdh_p;
ebe50bae 1874
875c0872 1875 hh = hppa_elf_hash_entry (eh);
a63e02c7 1876 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
4fc8051d 1877 {
875c0872
DA
1878 sec = hdh_p->sec->output_section;
1879 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
4fc8051d
AM
1880 break;
1881 }
1882
1883 /* If we didn't find any dynamic relocs in read-only sections, then
1884 we'll be keeping the dynamic relocs and avoiding the copy reloc. */
875c0872 1885 if (hdh_p == NULL)
4fc8051d 1886 {
875c0872 1887 eh->non_got_ref = 0;
4fc8051d
AM
1888 return TRUE;
1889 }
ebe50bae
AM
1890 }
1891
909272ee
AM
1892 if (eh->size == 0)
1893 {
1894 (*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
1895 eh->root.root.string);
1896 return TRUE;
1897 }
1898
30667bf3
AM
1899 /* We must allocate the symbol in our .dynbss section, which will
1900 become part of the .bss section of the executable. There will be
1901 an entry for this symbol in the .dynsym section. The dynamic
1902 object will contain position independent code, so all references
1903 from the dynamic object to this symbol will go through the global
1904 offset table. The dynamic linker will use the .dynsym entry to
1905 determine the address it must put in the global offset table, so
1906 both the dynamic object and the regular object will refer to the
1907 same memory location for the variable. */
1908
3ac8354b 1909 htab = hppa_link_hash_table (info);
30667bf3
AM
1910
1911 /* We must generate a COPY reloc to tell the dynamic linker to
1912 copy the initial value out of the dynamic object and into the
3ac8354b 1913 runtime process image. */
875c0872 1914 if ((eh->root.u.def.section->flags & SEC_ALLOC) != 0)
30667bf3 1915 {
eea6121a 1916 htab->srelbss->size += sizeof (Elf32_External_Rela);
875c0872 1917 eh->needs_copy = 1;
edd21aca 1918 }
252b5132 1919
875c0872 1920 sec = htab->sdynbss;
edd21aca 1921
027297b7 1922 return _bfd_elf_adjust_dynamic_copy (eh, sec);
252b5132
RH
1923}
1924
e5ee5df1 1925/* Allocate space in the .plt for entries that won't have relocations.
a252afa4 1926 ie. plabel entries. */
a8d02d66 1927
b34976b6 1928static bfd_boolean
875c0872 1929allocate_plt_static (struct elf_link_hash_entry *eh, void *inf)
a8d02d66
AM
1930{
1931 struct bfd_link_info *info;
1932 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1933 struct elf32_hppa_link_hash_entry *hh;
1934 asection *sec;
a8d02d66 1935
875c0872 1936 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 1937 return TRUE;
a8d02d66 1938
875c0872
DA
1939 if (eh->root.type == bfd_link_hash_warning)
1940 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 1941
875c0872 1942 info = (struct bfd_link_info *) inf;
9b52905e 1943 hh = hppa_elf_hash_entry (eh);
a8d02d66 1944 htab = hppa_link_hash_table (info);
a63e02c7 1945 if (htab->etab.dynamic_sections_created
875c0872 1946 && eh->plt.refcount > 0)
e5ee5df1
AM
1947 {
1948 /* Make sure this symbol is output as a dynamic symbol.
1949 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
1950 if (eh->dynindx == -1
1951 && !eh->forced_local
1952 && eh->type != STT_PARISC_MILLI)
a8d02d66 1953 {
875c0872 1954 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 1955 return FALSE;
e5ee5df1
AM
1956 }
1957
875c0872 1958 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, eh))
e5ee5df1 1959 {
067fa4a6
AM
1960 /* Allocate these later. From this point on, h->plabel
1961 means that the plt entry is only used by a plabel.
1962 We'll be using a normal plt entry for this symbol, so
1963 clear the plabel indicator. */
875c0872
DA
1964
1965 hh->plabel = 0;
e5ee5df1 1966 }
875c0872 1967 else if (hh->plabel)
e5ee5df1
AM
1968 {
1969 /* Make an entry in the .plt section for plabel references
1970 that won't have a .plt entry for other reasons. */
875c0872
DA
1971 sec = htab->splt;
1972 eh->plt.offset = sec->size;
1973 sec->size += PLT_ENTRY_SIZE;
a8d02d66
AM
1974 }
1975 else
e5ee5df1
AM
1976 {
1977 /* No .plt entry needed. */
875c0872
DA
1978 eh->plt.offset = (bfd_vma) -1;
1979 eh->needs_plt = 0;
e5ee5df1
AM
1980 }
1981 }
1982 else
1983 {
875c0872
DA
1984 eh->plt.offset = (bfd_vma) -1;
1985 eh->needs_plt = 0;
a8d02d66
AM
1986 }
1987
b34976b6 1988 return TRUE;
a8d02d66
AM
1989}
1990
4dc86686
AM
1991/* Allocate space in .plt, .got and associated reloc sections for
1992 global syms. */
1993
b34976b6 1994static bfd_boolean
875c0872 1995allocate_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
4dc86686
AM
1996{
1997 struct bfd_link_info *info;
83c81bfe 1998 struct elf32_hppa_link_hash_table *htab;
875c0872
DA
1999 asection *sec;
2000 struct elf32_hppa_link_hash_entry *hh;
2001 struct elf32_hppa_dyn_reloc_entry *hdh_p;
4dc86686 2002
875c0872 2003 if (eh->root.type == bfd_link_hash_indirect)
b34976b6 2004 return TRUE;
73a74a62 2005
875c0872
DA
2006 if (eh->root.type == bfd_link_hash_warning)
2007 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 2008
c39a58e6 2009 info = inf;
83c81bfe 2010 htab = hppa_link_hash_table (info);
875c0872
DA
2011 hh = hppa_elf_hash_entry (eh);
2012
a63e02c7 2013 if (htab->etab.dynamic_sections_created
875c0872
DA
2014 && eh->plt.offset != (bfd_vma) -1
2015 && !hh->plabel
2016 && eh->plt.refcount > 0)
4dc86686 2017 {
e5ee5df1 2018 /* Make an entry in the .plt section. */
875c0872
DA
2019 sec = htab->splt;
2020 eh->plt.offset = sec->size;
2021 sec->size += PLT_ENTRY_SIZE;
3ac8354b 2022
e5ee5df1 2023 /* We also need to make an entry in the .rela.plt section. */
eea6121a 2024 htab->srelplt->size += sizeof (Elf32_External_Rela);
e5ee5df1 2025 htab->need_plt_stub = 1;
4dc86686 2026 }
edd21aca 2027
875c0872 2028 if (eh->got.refcount > 0)
4dc86686 2029 {
446f2863
AM
2030 /* Make sure this symbol is output as a dynamic symbol.
2031 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2032 if (eh->dynindx == -1
2033 && !eh->forced_local
2034 && eh->type != STT_PARISC_MILLI)
446f2863 2035 {
875c0872 2036 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2037 return FALSE;
446f2863
AM
2038 }
2039
875c0872
DA
2040 sec = htab->sgot;
2041 eh->got.offset = sec->size;
2042 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2043 /* R_PARISC_TLS_GD* needs two GOT entries */
2044 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2045 sec->size += GOT_ENTRY_SIZE * 2;
2046 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2047 sec->size += GOT_ENTRY_SIZE;
a63e02c7 2048 if (htab->etab.dynamic_sections_created
ce757d15 2049 && (info->shared
875c0872
DA
2050 || (eh->dynindx != -1
2051 && !eh->forced_local)))
ce757d15 2052 {
eea6121a 2053 htab->srelgot->size += sizeof (Elf32_External_Rela);
9b52905e
NC
2054 if ((hh->tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2055 htab->srelgot->size += 2 * sizeof (Elf32_External_Rela);
2056 else if ((hh->tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2057 htab->srelgot->size += sizeof (Elf32_External_Rela);
ce757d15 2058 }
4dc86686
AM
2059 }
2060 else
875c0872 2061 eh->got.offset = (bfd_vma) -1;
30667bf3 2062
875c0872 2063 if (hh->dyn_relocs == NULL)
b34976b6 2064 return TRUE;
30667bf3 2065
98ceb8ce
AM
2066 /* If this is a -Bsymbolic shared link, then we need to discard all
2067 space allocated for dynamic pc-relative relocs against symbols
2068 defined in a regular object. For the normal shared case, discard
2069 space for relocs that have become local due to symbol visibility
2070 changes. */
2071 if (info->shared)
446f2863 2072 {
98ceb8ce 2073#if RELATIVE_DYNRELOCS
875c0872 2074 if (SYMBOL_CALLS_LOCAL (info, eh))
446f2863 2075 {
875c0872 2076 struct elf32_hppa_dyn_reloc_entry **hdh_pp;
30667bf3 2077
875c0872 2078 for (hdh_pp = &hh->dyn_relocs; (hdh_p = *hdh_pp) != NULL; )
98ceb8ce 2079 {
875c0872
DA
2080 hdh_p->count -= hdh_p->relative_count;
2081 hdh_p->relative_count = 0;
2082 if (hdh_p->count == 0)
a63e02c7 2083 *hdh_pp = hdh_p->hdh_next;
98ceb8ce 2084 else
a63e02c7 2085 hdh_pp = &hdh_p->hdh_next;
98ceb8ce
AM
2086 }
2087 }
2088#endif
4fc8051d
AM
2089
2090 /* Also discard relocs on undefined weak syms with non-default
2091 visibility. */
22d606e9 2092 if (hh->dyn_relocs != NULL
875c0872 2093 && eh->root.type == bfd_link_hash_undefweak)
22d606e9
AM
2094 {
2095 if (ELF_ST_VISIBILITY (eh->other) != STV_DEFAULT)
2096 hh->dyn_relocs = NULL;
2097
2098 /* Make sure undefined weak symbols are output as a dynamic
2099 symbol in PIEs. */
2100 else if (eh->dynindx == -1
2101 && !eh->forced_local)
2102 {
2103 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
2104 return FALSE;
2105 }
2106 }
446f2863 2107 }
98ceb8ce 2108 else
30667bf3 2109 {
98ceb8ce
AM
2110 /* For the non-shared case, discard space for relocs against
2111 symbols which turn out to need copy relocs or are not
2112 dynamic. */
875c0872
DA
2113
2114 if (!eh->non_got_ref
4fc8051d 2115 && ((ELIMINATE_COPY_RELOCS
875c0872
DA
2116 && eh->def_dynamic
2117 && !eh->def_regular)
a63e02c7 2118 || (htab->etab.dynamic_sections_created
875c0872
DA
2119 && (eh->root.type == bfd_link_hash_undefweak
2120 || eh->root.type == bfd_link_hash_undefined))))
98ceb8ce
AM
2121 {
2122 /* Make sure this symbol is output as a dynamic symbol.
2123 Undefined weak syms won't yet be marked as dynamic. */
875c0872
DA
2124 if (eh->dynindx == -1
2125 && !eh->forced_local
2126 && eh->type != STT_PARISC_MILLI)
98ceb8ce 2127 {
875c0872 2128 if (! bfd_elf_link_record_dynamic_symbol (info, eh))
b34976b6 2129 return FALSE;
98ceb8ce
AM
2130 }
2131
2132 /* If that succeeded, we know we'll be keeping all the
2133 relocs. */
875c0872 2134 if (eh->dynindx != -1)
98ceb8ce
AM
2135 goto keep;
2136 }
446f2863 2137
875c0872 2138 hh->dyn_relocs = NULL;
b34976b6 2139 return TRUE;
98ceb8ce 2140
ec338859 2141 keep: ;
30667bf3 2142 }
30667bf3 2143
98ceb8ce 2144 /* Finally, allocate space. */
a63e02c7 2145 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
30667bf3 2146 {
875c0872
DA
2147 asection *sreloc = elf_section_data (hdh_p->sec)->sreloc;
2148 sreloc->size += hdh_p->count * sizeof (Elf32_External_Rela);
30667bf3 2149 }
30667bf3 2150
b34976b6 2151 return TRUE;
30667bf3 2152}
30667bf3 2153
d5c73c2f
AM
2154/* This function is called via elf_link_hash_traverse to force
2155 millicode symbols local so they do not end up as globals in the
2156 dynamic symbol table. We ought to be able to do this in
2157 adjust_dynamic_symbol, but our adjust_dynamic_symbol is not called
2158 for all dynamic symbols. Arguably, this is a bug in
2159 elf_adjust_dynamic_symbol. */
2160
b34976b6 2161static bfd_boolean
875c0872 2162clobber_millicode_symbols (struct elf_link_hash_entry *eh,
c39a58e6 2163 struct bfd_link_info *info)
d5c73c2f 2164{
875c0872
DA
2165 if (eh->root.type == bfd_link_hash_warning)
2166 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 2167
875c0872
DA
2168 if (eh->type == STT_PARISC_MILLI
2169 && !eh->forced_local)
e0522e89 2170 {
875c0872 2171 elf32_hppa_hide_symbol (info, eh, TRUE);
e0522e89 2172 }
b34976b6 2173 return TRUE;
d5c73c2f
AM
2174}
2175
98ceb8ce
AM
2176/* Find any dynamic relocs that apply to read-only sections. */
2177
b34976b6 2178static bfd_boolean
875c0872 2179readonly_dynrelocs (struct elf_link_hash_entry *eh, void *inf)
98ceb8ce 2180{
875c0872
DA
2181 struct elf32_hppa_link_hash_entry *hh;
2182 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2183
875c0872
DA
2184 if (eh->root.type == bfd_link_hash_warning)
2185 eh = (struct elf_link_hash_entry *) eh->root.u.i.link;
e92d460e 2186
875c0872 2187 hh = hppa_elf_hash_entry (eh);
a63e02c7 2188 for (hdh_p = hh->dyn_relocs; hdh_p != NULL; hdh_p = hdh_p->hdh_next)
98ceb8ce 2189 {
875c0872 2190 asection *sec = hdh_p->sec->output_section;
98ceb8ce 2191
875c0872 2192 if (sec != NULL && (sec->flags & SEC_READONLY) != 0)
98ceb8ce 2193 {
c39a58e6 2194 struct bfd_link_info *info = inf;
98ceb8ce
AM
2195
2196 info->flags |= DF_TEXTREL;
2197
2198 /* Not an error, just cut short the traversal. */
b34976b6 2199 return FALSE;
98ceb8ce
AM
2200 }
2201 }
b34976b6 2202 return TRUE;
98ceb8ce
AM
2203}
2204
30667bf3
AM
2205/* Set the sizes of the dynamic sections. */
2206
b34976b6 2207static bfd_boolean
c39a58e6
AM
2208elf32_hppa_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
2209 struct bfd_link_info *info)
30667bf3 2210{
83c81bfe 2211 struct elf32_hppa_link_hash_table *htab;
30667bf3 2212 bfd *dynobj;
98ceb8ce 2213 bfd *ibfd;
875c0872 2214 asection *sec;
b34976b6 2215 bfd_boolean relocs;
30667bf3 2216
83c81bfe 2217 htab = hppa_link_hash_table (info);
a63e02c7 2218 dynobj = htab->etab.dynobj;
49e9d0d3
AM
2219 if (dynobj == NULL)
2220 abort ();
30667bf3 2221
a63e02c7 2222 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2223 {
2224 /* Set the contents of the .interp section to the interpreter. */
893c4fe2 2225 if (info->executable)
30667bf3 2226 {
875c0872
DA
2227 sec = bfd_get_section_by_name (dynobj, ".interp");
2228 if (sec == NULL)
49e9d0d3 2229 abort ();
875c0872
DA
2230 sec->size = sizeof ELF_DYNAMIC_INTERPRETER;
2231 sec->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER;
30667bf3 2232 }
74d1c347 2233
d5c73c2f 2234 /* Force millicode symbols local. */
a63e02c7 2235 elf_link_hash_traverse (&htab->etab,
d5c73c2f
AM
2236 clobber_millicode_symbols,
2237 info);
68fb2e56 2238 }
d5c73c2f 2239
98ceb8ce
AM
2240 /* Set up .got and .plt offsets for local syms, and space for local
2241 dynamic relocs. */
2242 for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
68fb2e56
AM
2243 {
2244 bfd_signed_vma *local_got;
2245 bfd_signed_vma *end_local_got;
2246 bfd_signed_vma *local_plt;
2247 bfd_signed_vma *end_local_plt;
2248 bfd_size_type locsymcount;
2249 Elf_Internal_Shdr *symtab_hdr;
2250 asection *srel;
9b52905e 2251 char *local_tls_type;
74d1c347 2252
98ceb8ce 2253 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour)
68fb2e56 2254 continue;
4dc86686 2255
875c0872 2256 for (sec = ibfd->sections; sec != NULL; sec = sec->next)
98ceb8ce 2257 {
875c0872 2258 struct elf32_hppa_dyn_reloc_entry *hdh_p;
98ceb8ce 2259
875c0872
DA
2260 for (hdh_p = ((struct elf32_hppa_dyn_reloc_entry *)
2261 elf_section_data (sec)->local_dynrel);
2262 hdh_p != NULL;
a63e02c7 2263 hdh_p = hdh_p->hdh_next)
98ceb8ce 2264 {
875c0872
DA
2265 if (!bfd_is_abs_section (hdh_p->sec)
2266 && bfd_is_abs_section (hdh_p->sec->output_section))
ec338859
AM
2267 {
2268 /* Input section has been discarded, either because
2269 it is a copy of a linkonce section or due to
2270 linker script /DISCARD/, so we'll be discarding
2271 the relocs too. */
2272 }
875c0872 2273 else if (hdh_p->count != 0)
ec338859 2274 {
875c0872
DA
2275 srel = elf_section_data (hdh_p->sec)->sreloc;
2276 srel->size += hdh_p->count * sizeof (Elf32_External_Rela);
2277 if ((hdh_p->sec->output_section->flags & SEC_READONLY) != 0)
248866a8 2278 info->flags |= DF_TEXTREL;
ec338859 2279 }
98ceb8ce
AM
2280 }
2281 }
2282
2283 local_got = elf_local_got_refcounts (ibfd);
68fb2e56
AM
2284 if (!local_got)
2285 continue;
74d1c347 2286
98ceb8ce 2287 symtab_hdr = &elf_tdata (ibfd)->symtab_hdr;
68fb2e56
AM
2288 locsymcount = symtab_hdr->sh_info;
2289 end_local_got = local_got + locsymcount;
9b52905e 2290 local_tls_type = hppa_elf_local_got_tls_type (ibfd);
875c0872 2291 sec = htab->sgot;
83c81bfe 2292 srel = htab->srelgot;
68fb2e56
AM
2293 for (; local_got < end_local_got; ++local_got)
2294 {
2295 if (*local_got > 0)
4dc86686 2296 {
875c0872
DA
2297 *local_got = sec->size;
2298 sec->size += GOT_ENTRY_SIZE;
9b52905e
NC
2299 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2300 sec->size += 2 * GOT_ENTRY_SIZE;
2301 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2302 sec->size += GOT_ENTRY_SIZE;
875c0872 2303 if (info->shared)
9b52905e
NC
2304 {
2305 srel->size += sizeof (Elf32_External_Rela);
2306 if ((*local_tls_type & (GOT_TLS_GD | GOT_TLS_IE)) == (GOT_TLS_GD | GOT_TLS_IE))
2307 srel->size += 2 * sizeof (Elf32_External_Rela);
2308 else if ((*local_tls_type & GOT_TLS_GD) == GOT_TLS_GD)
2309 srel->size += sizeof (Elf32_External_Rela);
2310 }
4dc86686 2311 }
68fb2e56
AM
2312 else
2313 *local_got = (bfd_vma) -1;
9b52905e
NC
2314
2315 ++local_tls_type;
68fb2e56 2316 }
74d1c347 2317
68fb2e56
AM
2318 local_plt = end_local_got;
2319 end_local_plt = local_plt + locsymcount;
a63e02c7 2320 if (! htab->etab.dynamic_sections_created)
68fb2e56
AM
2321 {
2322 /* Won't be used, but be safe. */
2323 for (; local_plt < end_local_plt; ++local_plt)
2324 *local_plt = (bfd_vma) -1;
2325 }
2326 else
2327 {
875c0872 2328 sec = htab->splt;
83c81bfe 2329 srel = htab->srelplt;
74d1c347
AM
2330 for (; local_plt < end_local_plt; ++local_plt)
2331 {
2332 if (*local_plt > 0)
2333 {
875c0872
DA
2334 *local_plt = sec->size;
2335 sec->size += PLT_ENTRY_SIZE;
74d1c347 2336 if (info->shared)
eea6121a 2337 srel->size += sizeof (Elf32_External_Rela);
74d1c347
AM
2338 }
2339 else
2340 *local_plt = (bfd_vma) -1;
2341 }
2342 }
30667bf3 2343 }
9b52905e
NC
2344
2345 if (htab->tls_ldm_got.refcount > 0)
2346 {
2347 /* Allocate 2 got entries and 1 dynamic reloc for
2348 R_PARISC_TLS_DTPMOD32 relocs. */
2349 htab->tls_ldm_got.offset = htab->sgot->size;
2350 htab->sgot->size += (GOT_ENTRY_SIZE * 2);
2351 htab->srelgot->size += sizeof (Elf32_External_Rela);
2352 }
2353 else
2354 htab->tls_ldm_got.offset = -1;
30667bf3 2355
e5ee5df1
AM
2356 /* Do all the .plt entries without relocs first. The dynamic linker
2357 uses the last .plt reloc to find the end of the .plt (and hence
2358 the start of the .got) for lazy linking. */
a63e02c7 2359 elf_link_hash_traverse (&htab->etab, allocate_plt_static, info);
a8d02d66 2360
98ceb8ce
AM
2361 /* Allocate global sym .plt and .got entries, and space for global
2362 sym dynamic relocs. */
a63e02c7 2363 elf_link_hash_traverse (&htab->etab, allocate_dynrelocs, info);
30667bf3
AM
2364
2365 /* The check_relocs and adjust_dynamic_symbol entry points have
2366 determined the sizes of the various dynamic sections. Allocate
2367 memory for them. */
b34976b6 2368 relocs = FALSE;
875c0872 2369 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
30667bf3 2370 {
875c0872 2371 if ((sec->flags & SEC_LINKER_CREATED) == 0)
30667bf3
AM
2372 continue;
2373
875c0872 2374 if (sec == htab->splt)
68fb2e56 2375 {
83c81bfe 2376 if (htab->need_plt_stub)
68fb2e56
AM
2377 {
2378 /* Make space for the plt stub at the end of the .plt
2379 section. We want this stub right at the end, up
2380 against the .got section. */
83c81bfe 2381 int gotalign = bfd_section_alignment (dynobj, htab->sgot);
875c0872 2382 int pltalign = bfd_section_alignment (dynobj, sec);
68fb2e56 2383 bfd_size_type mask;
30667bf3 2384
68fb2e56 2385 if (gotalign > pltalign)
875c0872 2386 bfd_set_section_alignment (dynobj, sec, gotalign);
68fb2e56 2387 mask = ((bfd_size_type) 1 << gotalign) - 1;
875c0872 2388 sec->size = (sec->size + sizeof (plt_stub) + mask) & ~mask;
68fb2e56
AM
2389 }
2390 }
c456f082
AM
2391 else if (sec == htab->sgot
2392 || sec == htab->sdynbss)
68fb2e56 2393 ;
0112cd26 2394 else if (CONST_STRNEQ (bfd_get_section_name (dynobj, sec), ".rela"))
30667bf3 2395 {
875c0872 2396 if (sec->size != 0)
30667bf3 2397 {
4e12ff7f
AM
2398 /* Remember whether there are any reloc sections other
2399 than .rela.plt. */
875c0872 2400 if (sec != htab->srelplt)
b34976b6 2401 relocs = TRUE;
47d89dba 2402
30667bf3
AM
2403 /* We use the reloc_count field as a counter if we need
2404 to copy relocs into the output file. */
875c0872 2405 sec->reloc_count = 0;
30667bf3
AM
2406 }
2407 }
30667bf3
AM
2408 else
2409 {
2410 /* It's not one of our sections, so don't allocate space. */
2411 continue;
2412 }
2413
875c0872 2414 if (sec->size == 0)
30667bf3
AM
2415 {
2416 /* If we don't need this section, strip it from the
2417 output file. This is mostly to handle .rela.bss and
2418 .rela.plt. We must create both sections in
2419 create_dynamic_sections, because they must be created
2420 before the linker maps input sections to output
2421 sections. The linker does that before
2422 adjust_dynamic_symbol is called, and it is that
2423 function which decides whether anything needs to go
2424 into these sections. */
875c0872 2425 sec->flags |= SEC_EXCLUDE;
30667bf3
AM
2426 continue;
2427 }
2428
c456f082
AM
2429 if ((sec->flags & SEC_HAS_CONTENTS) == 0)
2430 continue;
2431
30667bf3
AM
2432 /* Allocate memory for the section contents. Zero it, because
2433 we may not fill in all the reloc sections. */
875c0872 2434 sec->contents = bfd_zalloc (dynobj, sec->size);
c456f082 2435 if (sec->contents == NULL)
b34976b6 2436 return FALSE;
30667bf3
AM
2437 }
2438
a63e02c7 2439 if (htab->etab.dynamic_sections_created)
30667bf3
AM
2440 {
2441 /* Like IA-64 and HPPA64, always create a DT_PLTGOT. It
2442 actually has nothing to do with the PLT, it is how we
2443 communicate the LTP value of a load module to the dynamic
2444 linker. */
dc810e39 2445#define add_dynamic_entry(TAG, VAL) \
5a580b3a 2446 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
2447
2448 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 2449 return FALSE;
30667bf3
AM
2450
2451 /* Add some entries to the .dynamic section. We fill in the
2452 values later, in elf32_hppa_finish_dynamic_sections, but we
2453 must add the entries now so that we get the correct size for
2454 the .dynamic section. The DT_DEBUG entry is filled in by the
2455 dynamic linker and used by the debugger. */
3c27d551 2456 if (info->executable)
30667bf3 2457 {
dc810e39 2458 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 2459 return FALSE;
30667bf3
AM
2460 }
2461
eea6121a 2462 if (htab->srelplt->size != 0)
30667bf3 2463 {
dc810e39
AM
2464 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2465 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2466 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 2467 return FALSE;
30667bf3
AM
2468 }
2469
2470 if (relocs)
2471 {
dc810e39
AM
2472 if (!add_dynamic_entry (DT_RELA, 0)
2473 || !add_dynamic_entry (DT_RELASZ, 0)
2474 || !add_dynamic_entry (DT_RELAENT, sizeof (Elf32_External_Rela)))
b34976b6 2475 return FALSE;
30667bf3 2476
98ceb8ce
AM
2477 /* If any dynamic relocs apply to a read-only section,
2478 then we need a DT_TEXTREL entry. */
248866a8 2479 if ((info->flags & DF_TEXTREL) == 0)
a63e02c7 2480 elf_link_hash_traverse (&htab->etab, readonly_dynrelocs, info);
98ceb8ce
AM
2481
2482 if ((info->flags & DF_TEXTREL) != 0)
2483 {
2484 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 2485 return FALSE;
98ceb8ce 2486 }
30667bf3
AM
2487 }
2488 }
dc810e39 2489#undef add_dynamic_entry
30667bf3 2490
b34976b6 2491 return TRUE;
30667bf3
AM
2492}
2493
30667bf3
AM
2494/* External entry points for sizing and building linker stubs. */
2495
b4655ea9
AM
2496/* Set up various things so that we can make a list of input sections
2497 for each output section included in the link. Returns -1 on error,
cedb70c5 2498 0 when no stubs will be needed, and 1 on success. */
30667bf3 2499
b4655ea9 2500int
c39a58e6 2501elf32_hppa_setup_section_lists (bfd *output_bfd, struct bfd_link_info *info)
30667bf3
AM
2502{
2503 bfd *input_bfd;
b4655ea9
AM
2504 unsigned int bfd_count;
2505 int top_id, top_index;
30667bf3 2506 asection *section;
25f72752 2507 asection **input_list, **list;
dc810e39 2508 bfd_size_type amt;
b4655ea9 2509 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3 2510
1badb539
AM
2511 /* Count the number of input BFDs and find the top input section id. */
2512 for (input_bfd = info->input_bfds, bfd_count = 0, top_id = 0;
30667bf3
AM
2513 input_bfd != NULL;
2514 input_bfd = input_bfd->link_next)
2515 {
2516 bfd_count += 1;
25f72752
AM
2517 for (section = input_bfd->sections;
2518 section != NULL;
2519 section = section->next)
2520 {
2521 if (top_id < section->id)
2522 top_id = section->id;
2523 }
30667bf3 2524 }
b4655ea9 2525 htab->bfd_count = bfd_count;
30667bf3 2526
dc810e39 2527 amt = sizeof (struct map_stub) * (top_id + 1);
c39a58e6 2528 htab->stub_group = bfd_zmalloc (amt);
83c81bfe 2529 if (htab->stub_group == NULL)
b4655ea9 2530 return -1;
1badb539 2531
b4655ea9 2532 /* We can't use output_bfd->section_count here to find the top output
1badb539 2533 section index as some sections may have been removed, and
8423293d 2534 strip_excluded_output_sections doesn't renumber the indices. */
1badb539
AM
2535 for (section = output_bfd->sections, top_index = 0;
2536 section != NULL;
2537 section = section->next)
2538 {
2539 if (top_index < section->index)
2540 top_index = section->index;
2541 }
2542
b4655ea9 2543 htab->top_index = top_index;
dc810e39 2544 amt = sizeof (asection *) * (top_index + 1);
c39a58e6 2545 input_list = bfd_malloc (amt);
b4655ea9 2546 htab->input_list = input_list;
25f72752 2547 if (input_list == NULL)
b4655ea9 2548 return -1;
25f72752 2549
1badb539
AM
2550 /* For sections we aren't interested in, mark their entries with a
2551 value we can check later. */
2552 list = input_list + top_index;
2553 do
2554 *list = bfd_abs_section_ptr;
2555 while (list-- != input_list);
2556
2557 for (section = output_bfd->sections;
2558 section != NULL;
2559 section = section->next)
2560 {
47d89dba 2561 if ((section->flags & SEC_CODE) != 0)
1badb539
AM
2562 input_list[section->index] = NULL;
2563 }
2564
b4655ea9
AM
2565 return 1;
2566}
2567
2568/* The linker repeatedly calls this function for each input section,
2569 in the order that input sections are linked into output sections.
2570 Build lists of input sections to determine groupings between which
2571 we may insert linker stubs. */
2572
2573void
c39a58e6 2574elf32_hppa_next_input_section (struct bfd_link_info *info, asection *isec)
b4655ea9
AM
2575{
2576 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2577
2578 if (isec->output_section->index <= htab->top_index)
25f72752 2579 {
b4655ea9
AM
2580 asection **list = htab->input_list + isec->output_section->index;
2581 if (*list != bfd_abs_section_ptr)
25f72752 2582 {
b4655ea9 2583 /* Steal the link_sec pointer for our list. */
83c81bfe 2584#define PREV_SEC(sec) (htab->stub_group[(sec)->id].link_sec)
b4655ea9
AM
2585 /* This happens to make the list in reverse order,
2586 which is what we want. */
2587 PREV_SEC (isec) = *list;
2588 *list = isec;
25f72752
AM
2589 }
2590 }
b4655ea9 2591}
25f72752 2592
b4655ea9
AM
2593/* See whether we can group stub sections together. Grouping stub
2594 sections may result in fewer stubs. More importantly, we need to
2595 put all .init* and .fini* stubs at the beginning of the .init or
2596 .fini output sections respectively, because glibc splits the
2597 _init and _fini functions into multiple parts. Putting a stub in
2598 the middle of a function is not a good idea. */
2599
2600static void
c39a58e6
AM
2601group_sections (struct elf32_hppa_link_hash_table *htab,
2602 bfd_size_type stub_group_size,
2603 bfd_boolean stubs_always_before_branch)
b4655ea9
AM
2604{
2605 asection **list = htab->input_list + htab->top_index;
1badb539 2606 do
25f72752
AM
2607 {
2608 asection *tail = *list;
1badb539
AM
2609 if (tail == bfd_abs_section_ptr)
2610 continue;
25f72752
AM
2611 while (tail != NULL)
2612 {
2613 asection *curr;
2614 asection *prev;
2615 bfd_size_type total;
00b28bb0 2616 bfd_boolean big_sec;
25f72752
AM
2617
2618 curr = tail;
eea6121a 2619 total = tail->size;
00b28bb0
AM
2620 big_sec = total >= stub_group_size;
2621
25f72752
AM
2622 while ((prev = PREV_SEC (curr)) != NULL
2623 && ((total += curr->output_offset - prev->output_offset)
47d89dba 2624 < stub_group_size))
25f72752
AM
2625 curr = prev;
2626
2627 /* OK, the size from the start of CURR to the end is less
a248e267 2628 than 240000 bytes and thus can be handled by one stub
25f72752 2629 section. (or the tail section is itself larger than
a248e267 2630 240000 bytes, in which case we may be toast.)
25f72752
AM
2631 We should really be keeping track of the total size of
2632 stubs added here, as stubs contribute to the final output
2633 section size. That's a little tricky, and this way will
a248e267
AM
2634 only break if stubs added total more than 22144 bytes, or
2635 2768 long branch stubs. It seems unlikely for more than
2636 2768 different functions to be called, especially from
2637 code only 240000 bytes long. This limit used to be
2638 250000, but c++ code tends to generate lots of little
2639 functions, and sometimes violated the assumption. */
25f72752
AM
2640 do
2641 {
2642 prev = PREV_SEC (tail);
2643 /* Set up this stub group. */
83c81bfe 2644 htab->stub_group[tail->id].link_sec = curr;
25f72752
AM
2645 }
2646 while (tail != curr && (tail = prev) != NULL);
2647
a248e267 2648 /* But wait, there's more! Input sections up to 240000
00b28bb0
AM
2649 bytes before the stub section can be handled by it too.
2650 Don't do this if we have a really large section after the
2651 stubs, as adding more stubs increases the chance that
2652 branches may not reach into the stub section. */
2653 if (!stubs_always_before_branch && !big_sec)
25f72752 2654 {
47d89dba
AM
2655 total = 0;
2656 while (prev != NULL
2657 && ((total += tail->output_offset - prev->output_offset)
2658 < stub_group_size))
2659 {
2660 tail = prev;
2661 prev = PREV_SEC (tail);
83c81bfe 2662 htab->stub_group[tail->id].link_sec = curr;
47d89dba 2663 }
25f72752
AM
2664 }
2665 tail = prev;
2666 }
2667 }
b4655ea9
AM
2668 while (list-- != htab->input_list);
2669 free (htab->input_list);
1badb539 2670#undef PREV_SEC
b4655ea9
AM
2671}
2672
2673/* Read in all local syms for all input bfds, and create hash entries
2674 for export stubs if we are building a multi-subspace shared lib.
2675 Returns -1 on error, 1 if export stubs created, 0 otherwise. */
2676
2677static int
c39a58e6 2678get_local_syms (bfd *output_bfd, bfd *input_bfd, struct bfd_link_info *info)
b4655ea9
AM
2679{
2680 unsigned int bfd_indx;
2681 Elf_Internal_Sym *local_syms, **all_local_syms;
2682 int stub_changed = 0;
2683 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
30667bf3
AM
2684
2685 /* We want to read in symbol extension records only once. To do this
2686 we need to read in the local symbols in parallel and save them for
2687 later use; so hold pointers to the local symbols in an array. */
b4655ea9 2688 bfd_size_type amt = sizeof (Elf_Internal_Sym *) * htab->bfd_count;
c39a58e6 2689 all_local_syms = bfd_zmalloc (amt);
b4655ea9 2690 htab->all_local_syms = all_local_syms;
30667bf3 2691 if (all_local_syms == NULL)
b4655ea9 2692 return -1;
30667bf3
AM
2693
2694 /* Walk over all the input BFDs, swapping in local symbols.
2695 If we are creating a shared library, create hash entries for the
2696 export stubs. */
b4655ea9 2697 for (bfd_indx = 0;
30667bf3 2698 input_bfd != NULL;
25f72752 2699 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2700 {
2701 Elf_Internal_Shdr *symtab_hdr;
edd21aca 2702
252b5132
RH
2703 /* We'll need the symbol table in a second. */
2704 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2705 if (symtab_hdr->sh_info == 0)
2706 continue;
2707
6cdc0ccc
AM
2708 /* We need an array of the local symbols attached to the input bfd. */
2709 local_syms = (Elf_Internal_Sym *) symtab_hdr->contents;
edd21aca 2710 if (local_syms == NULL)
edd21aca 2711 {
6cdc0ccc
AM
2712 local_syms = bfd_elf_get_elf_syms (input_bfd, symtab_hdr,
2713 symtab_hdr->sh_info, 0,
2714 NULL, NULL, NULL);
2715 /* Cache them for elf_link_input_bfd. */
2716 symtab_hdr->contents = (unsigned char *) local_syms;
edd21aca 2717 }
6cdc0ccc
AM
2718 if (local_syms == NULL)
2719 return -1;
edd21aca 2720
6cdc0ccc 2721 all_local_syms[bfd_indx] = local_syms;
edd21aca 2722
83c81bfe 2723 if (info->shared && htab->multi_subspace)
30667bf3 2724 {
875c0872
DA
2725 struct elf_link_hash_entry **eh_syms;
2726 struct elf_link_hash_entry **eh_symend;
30667bf3
AM
2727 unsigned int symcount;
2728
2729 symcount = (symtab_hdr->sh_size / sizeof (Elf32_External_Sym)
2730 - symtab_hdr->sh_info);
875c0872
DA
2731 eh_syms = (struct elf_link_hash_entry **) elf_sym_hashes (input_bfd);
2732 eh_symend = (struct elf_link_hash_entry **) (eh_syms + symcount);
30667bf3
AM
2733
2734 /* Look through the global syms for functions; We need to
2735 build export stubs for all globally visible functions. */
875c0872 2736 for (; eh_syms < eh_symend; eh_syms++)
30667bf3 2737 {
875c0872 2738 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2739
875c0872 2740 hh = hppa_elf_hash_entry (*eh_syms);
30667bf3 2741
a63e02c7
DA
2742 while (hh->eh.root.type == bfd_link_hash_indirect
2743 || hh->eh.root.type == bfd_link_hash_warning)
2744 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3
AM
2745
2746 /* At this point in the link, undefined syms have been
2747 resolved, so we need to check that the symbol was
2748 defined in this BFD. */
a63e02c7
DA
2749 if ((hh->eh.root.type == bfd_link_hash_defined
2750 || hh->eh.root.type == bfd_link_hash_defweak)
2751 && hh->eh.type == STT_FUNC
2752 && hh->eh.root.u.def.section->output_section != NULL
2753 && (hh->eh.root.u.def.section->output_section->owner
25f72752 2754 == output_bfd)
a63e02c7
DA
2755 && hh->eh.root.u.def.section->owner == input_bfd
2756 && hh->eh.def_regular
2757 && !hh->eh.forced_local
2758 && ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT)
30667bf3
AM
2759 {
2760 asection *sec;
2761 const char *stub_name;
875c0872 2762 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3 2763
a63e02c7 2764 sec = hh->eh.root.u.def.section;
9b52905e 2765 stub_name = hh_name (hh);
a63e02c7 2766 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 2767 stub_name,
b34976b6 2768 FALSE, FALSE);
875c0872 2769 if (hsh == NULL)
30667bf3 2770 {
875c0872
DA
2771 hsh = hppa_add_stub (stub_name, sec, htab);
2772 if (!hsh)
b4655ea9 2773 return -1;
30667bf3 2774
a63e02c7
DA
2775 hsh->target_value = hh->eh.root.u.def.value;
2776 hsh->target_section = hh->eh.root.u.def.section;
875c0872 2777 hsh->stub_type = hppa_stub_export;
a63e02c7 2778 hsh->hh = hh;
30667bf3
AM
2779 stub_changed = 1;
2780 }
2781 else
2782 {
d003868e
AM
2783 (*_bfd_error_handler) (_("%B: duplicate export stub %s"),
2784 input_bfd,
8f615d07 2785 stub_name);
30667bf3
AM
2786 }
2787 }
2788 }
30667bf3
AM
2789 }
2790 }
edd21aca 2791
b4655ea9
AM
2792 return stub_changed;
2793}
2794
2795/* Determine and set the size of the stub section for a final link.
2796
2797 The basic idea here is to examine all the relocations looking for
2798 PC-relative calls to a target that is unreachable with a "bl"
2799 instruction. */
2800
b34976b6 2801bfd_boolean
c39a58e6
AM
2802elf32_hppa_size_stubs
2803 (bfd *output_bfd, bfd *stub_bfd, struct bfd_link_info *info,
2804 bfd_boolean multi_subspace, bfd_signed_vma group_size,
2805 asection * (*add_stub_section) (const char *, asection *),
2806 void (*layout_sections_again) (void))
b4655ea9
AM
2807{
2808 bfd_size_type stub_group_size;
b34976b6
AM
2809 bfd_boolean stubs_always_before_branch;
2810 bfd_boolean stub_changed;
b4655ea9
AM
2811 struct elf32_hppa_link_hash_table *htab = hppa_link_hash_table (info);
2812
2813 /* Stash our params away. */
2814 htab->stub_bfd = stub_bfd;
2815 htab->multi_subspace = multi_subspace;
2816 htab->add_stub_section = add_stub_section;
2817 htab->layout_sections_again = layout_sections_again;
2818 stubs_always_before_branch = group_size < 0;
2819 if (group_size < 0)
2820 stub_group_size = -group_size;
2821 else
2822 stub_group_size = group_size;
2823 if (stub_group_size == 1)
2824 {
2825 /* Default values. */
acc990f2
AM
2826 if (stubs_always_before_branch)
2827 {
2828 stub_group_size = 7680000;
2829 if (htab->has_17bit_branch || htab->multi_subspace)
2830 stub_group_size = 240000;
2831 if (htab->has_12bit_branch)
2832 stub_group_size = 7500;
2833 }
2834 else
2835 {
2836 stub_group_size = 6971392;
2837 if (htab->has_17bit_branch || htab->multi_subspace)
2838 stub_group_size = 217856;
2839 if (htab->has_12bit_branch)
2840 stub_group_size = 6808;
2841 }
b4655ea9
AM
2842 }
2843
2844 group_sections (htab, stub_group_size, stubs_always_before_branch);
2845
2846 switch (get_local_syms (output_bfd, info->input_bfds, info))
2847 {
2848 default:
2849 if (htab->all_local_syms)
2850 goto error_ret_free_local;
b34976b6 2851 return FALSE;
b4655ea9
AM
2852
2853 case 0:
b34976b6 2854 stub_changed = FALSE;
b4655ea9
AM
2855 break;
2856
2857 case 1:
b34976b6 2858 stub_changed = TRUE;
b4655ea9
AM
2859 break;
2860 }
2861
edd21aca
AM
2862 while (1)
2863 {
b4655ea9
AM
2864 bfd *input_bfd;
2865 unsigned int bfd_indx;
30667bf3
AM
2866 asection *stub_sec;
2867
25f72752 2868 for (input_bfd = info->input_bfds, bfd_indx = 0;
30667bf3 2869 input_bfd != NULL;
25f72752 2870 input_bfd = input_bfd->link_next, bfd_indx++)
30667bf3
AM
2871 {
2872 Elf_Internal_Shdr *symtab_hdr;
b4655ea9
AM
2873 asection *section;
2874 Elf_Internal_Sym *local_syms;
30667bf3
AM
2875
2876 /* We'll need the symbol table in a second. */
2877 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
2878 if (symtab_hdr->sh_info == 0)
2879 continue;
2880
b4655ea9 2881 local_syms = htab->all_local_syms[bfd_indx];
30667bf3
AM
2882
2883 /* Walk over each section attached to the input bfd. */
2884 for (section = input_bfd->sections;
2885 section != NULL;
25f72752 2886 section = section->next)
30667bf3 2887 {
30667bf3
AM
2888 Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
2889
2890 /* If there aren't any relocs, then there's nothing more
2891 to do. */
2892 if ((section->flags & SEC_RELOC) == 0
2893 || section->reloc_count == 0)
2894 continue;
2895
25f72752
AM
2896 /* If this section is a link-once section that will be
2897 discarded, then don't create any stubs. */
2898 if (section->output_section == NULL
2899 || section->output_section->owner != output_bfd)
2900 continue;
2901
1e2f5b6e
AM
2902 /* Get the relocs. */
2903 internal_relocs
c39a58e6 2904 = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL,
45d6a902 2905 info->keep_memory);
30667bf3 2906 if (internal_relocs == NULL)
1e2f5b6e 2907 goto error_ret_free_local;
30667bf3
AM
2908
2909 /* Now examine each relocation. */
2910 irela = internal_relocs;
2911 irelaend = irela + section->reloc_count;
2912 for (; irela < irelaend; irela++)
2913 {
2914 unsigned int r_type, r_indx;
2915 enum elf32_hppa_stub_type stub_type;
875c0872 2916 struct elf32_hppa_stub_hash_entry *hsh;
30667bf3
AM
2917 asection *sym_sec;
2918 bfd_vma sym_value;
2919 bfd_vma destination;
875c0872 2920 struct elf32_hppa_link_hash_entry *hh;
30667bf3 2921 char *stub_name;
25f72752 2922 const asection *id_sec;
30667bf3
AM
2923
2924 r_type = ELF32_R_TYPE (irela->r_info);
2925 r_indx = ELF32_R_SYM (irela->r_info);
2926
2927 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
2928 {
2929 bfd_set_error (bfd_error_bad_value);
1e2f5b6e
AM
2930 error_ret_free_internal:
2931 if (elf_section_data (section)->relocs == NULL)
2932 free (internal_relocs);
2933 goto error_ret_free_local;
30667bf3
AM
2934 }
2935
2936 /* Only look for stubs on call instructions. */
2937 if (r_type != (unsigned int) R_PARISC_PCREL12F
2938 && r_type != (unsigned int) R_PARISC_PCREL17F
2939 && r_type != (unsigned int) R_PARISC_PCREL22F)
2940 continue;
2941
2942 /* Now determine the call target, its name, value,
2943 section. */
2944 sym_sec = NULL;
2945 sym_value = 0;
2946 destination = 0;
875c0872 2947 hh = NULL;
30667bf3
AM
2948 if (r_indx < symtab_hdr->sh_info)
2949 {
2950 /* It's a local symbol. */
2951 Elf_Internal_Sym *sym;
2952 Elf_Internal_Shdr *hdr;
4fbb74a6 2953 unsigned int shndx;
30667bf3
AM
2954
2955 sym = local_syms + r_indx;
30667bf3
AM
2956 if (ELF_ST_TYPE (sym->st_info) != STT_SECTION)
2957 sym_value = sym->st_value;
4fbb74a6
AM
2958 shndx = sym->st_shndx;
2959 if (shndx < elf_numsections (input_bfd))
2960 {
2961 hdr = elf_elfsections (input_bfd)[shndx];
2962 sym_sec = hdr->bfd_section;
2963 destination = (sym_value + irela->r_addend
2964 + sym_sec->output_offset
2965 + sym_sec->output_section->vma);
2966 }
30667bf3
AM
2967 }
2968 else
2969 {
2970 /* It's an external symbol. */
2971 int e_indx;
2972
2973 e_indx = r_indx - symtab_hdr->sh_info;
875c0872 2974 hh = hppa_elf_hash_entry (elf_sym_hashes (input_bfd)[e_indx]);
30667bf3 2975
a63e02c7
DA
2976 while (hh->eh.root.type == bfd_link_hash_indirect
2977 || hh->eh.root.type == bfd_link_hash_warning)
2978 hh = hppa_elf_hash_entry (hh->eh.root.u.i.link);
30667bf3 2979
a63e02c7
DA
2980 if (hh->eh.root.type == bfd_link_hash_defined
2981 || hh->eh.root.type == bfd_link_hash_defweak)
30667bf3 2982 {
a63e02c7
DA
2983 sym_sec = hh->eh.root.u.def.section;
2984 sym_value = hh->eh.root.u.def.value;
30667bf3
AM
2985 if (sym_sec->output_section != NULL)
2986 destination = (sym_value + irela->r_addend
2987 + sym_sec->output_offset
2988 + sym_sec->output_section->vma);
2989 }
a63e02c7 2990 else if (hh->eh.root.type == bfd_link_hash_undefweak)
c432ba1a
AM
2991 {
2992 if (! info->shared)
2993 continue;
2994 }
a63e02c7 2995 else if (hh->eh.root.type == bfd_link_hash_undefined)
c432ba1a 2996 {
59c2e50f 2997 if (! (info->unresolved_syms_in_objects == RM_IGNORE
a63e02c7 2998 && (ELF_ST_VISIBILITY (hh->eh.other)
c432ba1a 2999 == STV_DEFAULT)
a63e02c7 3000 && hh->eh.type != STT_PARISC_MILLI))
c432ba1a
AM
3001 continue;
3002 }
30667bf3
AM
3003 else
3004 {
3005 bfd_set_error (bfd_error_bad_value);
3006 goto error_ret_free_internal;
3007 }
3008 }
3009
3010 /* Determine what (if any) linker stub is needed. */
875c0872 3011 stub_type = hppa_type_of_stub (section, irela, hh,
a252afa4 3012 destination, info);
30667bf3
AM
3013 if (stub_type == hppa_stub_none)
3014 continue;
3015
25f72752 3016 /* Support for grouping stub sections. */
83c81bfe 3017 id_sec = htab->stub_group[section->id].link_sec;
25f72752 3018
30667bf3 3019 /* Get the name of this stub. */
875c0872 3020 stub_name = hppa_stub_name (id_sec, sym_sec, hh, irela);
30667bf3
AM
3021 if (!stub_name)
3022 goto error_ret_free_internal;
3023
a63e02c7 3024 hsh = hppa_stub_hash_lookup (&htab->bstab,
30667bf3 3025 stub_name,
b34976b6 3026 FALSE, FALSE);
875c0872 3027 if (hsh != NULL)
30667bf3
AM
3028 {
3029 /* The proper stub has already been created. */
3030 free (stub_name);
3031 continue;
3032 }
3033
875c0872
DA
3034 hsh = hppa_add_stub (stub_name, section, htab);
3035 if (hsh == NULL)
30667bf3
AM
3036 {
3037 free (stub_name);
1e2f5b6e 3038 goto error_ret_free_internal;
30667bf3
AM
3039 }
3040
875c0872
DA
3041 hsh->target_value = sym_value;
3042 hsh->target_section = sym_sec;
3043 hsh->stub_type = stub_type;
30667bf3
AM
3044 if (info->shared)
3045 {
3046 if (stub_type == hppa_stub_import)
875c0872 3047 hsh->stub_type = hppa_stub_import_shared;
98ceb8ce 3048 else if (stub_type == hppa_stub_long_branch)
875c0872 3049 hsh->stub_type = hppa_stub_long_branch_shared;
30667bf3 3050 }
a63e02c7 3051 hsh->hh = hh;
b34976b6 3052 stub_changed = TRUE;
30667bf3
AM
3053 }
3054
3055 /* We're done with the internal relocs, free them. */
1e2f5b6e
AM
3056 if (elf_section_data (section)->relocs == NULL)
3057 free (internal_relocs);
30667bf3
AM
3058 }
3059 }
3060
3061 if (!stub_changed)
3062 break;
3063
3064 /* OK, we've added some stubs. Find out the new size of the
3065 stub sections. */
83c81bfe 3066 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3067 stub_sec != NULL;
3068 stub_sec = stub_sec->next)
eea6121a 3069 stub_sec->size = 0;
74d1c347 3070
a63e02c7 3071 bfd_hash_traverse (&htab->bstab, hppa_size_one_stub, htab);
74d1c347 3072
30667bf3 3073 /* Ask the linker to do its stuff. */
83c81bfe 3074 (*htab->layout_sections_again) ();
b34976b6 3075 stub_changed = FALSE;
30667bf3
AM
3076 }
3077
6cdc0ccc 3078 free (htab->all_local_syms);
b34976b6 3079 return TRUE;
30667bf3
AM
3080
3081 error_ret_free_local:
b4655ea9 3082 free (htab->all_local_syms);
b34976b6 3083 return FALSE;
30667bf3
AM
3084}
3085
30667bf3
AM
3086/* For a final link, this function is called after we have sized the
3087 stubs to provide a value for __gp. */
3088
b34976b6 3089bfd_boolean
c39a58e6 3090elf32_hppa_set_gp (bfd *abfd, struct bfd_link_info *info)
30667bf3 3091{
b4655ea9
AM
3092 struct bfd_link_hash_entry *h;
3093 asection *sec = NULL;
3094 bfd_vma gp_val = 0;
83c81bfe 3095 struct elf32_hppa_link_hash_table *htab;
30667bf3 3096
83c81bfe 3097 htab = hppa_link_hash_table (info);
a63e02c7 3098 h = bfd_link_hash_lookup (&htab->etab.root, "$global$", FALSE, FALSE, FALSE);
30667bf3 3099
df8634e3 3100 if (h != NULL
b4655ea9
AM
3101 && (h->type == bfd_link_hash_defined
3102 || h->type == bfd_link_hash_defweak))
30667bf3 3103 {
b4655ea9
AM
3104 gp_val = h->u.def.value;
3105 sec = h->u.def.section;
30667bf3
AM
3106 }
3107 else
3108 {
0eddce27
AM
3109 asection *splt = bfd_get_section_by_name (abfd, ".plt");
3110 asection *sgot = bfd_get_section_by_name (abfd, ".got");
b4655ea9 3111
74d1c347
AM
3112 /* Choose to point our LTP at, in this order, one of .plt, .got,
3113 or .data, if these sections exist. In the case of choosing
3114 .plt try to make the LTP ideal for addressing anywhere in the
3115 .plt or .got with a 14 bit signed offset. Typically, the end
3116 of the .plt is the start of the .got, so choose .plt + 0x2000
3117 if either the .plt or .got is larger than 0x2000. If both
3118 the .plt and .got are smaller than 0x2000, choose the end of
3119 the .plt section. */
225247f0
JT
3120 sec = strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") == 0
3121 ? NULL : splt;
74d1c347 3122 if (sec != NULL)
30667bf3 3123 {
eea6121a
AM
3124 gp_val = sec->size;
3125 if (gp_val > 0x2000 || (sgot && sgot->size > 0x2000))
74d1c347
AM
3126 {
3127 gp_val = 0x2000;
3128 }
3129 }
3130 else
3131 {
b4655ea9 3132 sec = sgot;
74d1c347
AM
3133 if (sec != NULL)
3134 {
225247f0
JT
3135 if (strcmp (bfd_get_target (abfd), "elf32-hppa-netbsd") != 0)
3136 {
3137 /* We know we don't have a .plt. If .got is large,
3138 offset our LTP. */
3139 if (sec->size > 0x2000)
3140 gp_val = 0x2000;
3141 }
74d1c347
AM
3142 }
3143 else
3144 {
3145 /* No .plt or .got. Who cares what the LTP is? */
3146 sec = bfd_get_section_by_name (abfd, ".data");
3147 }
30667bf3 3148 }
df8634e3
AM
3149
3150 if (h != NULL)
3151 {
b4655ea9
AM
3152 h->type = bfd_link_hash_defined;
3153 h->u.def.value = gp_val;
df8634e3 3154 if (sec != NULL)
b4655ea9 3155 h->u.def.section = sec;
df8634e3 3156 else
b4655ea9 3157 h->u.def.section = bfd_abs_section_ptr;
df8634e3 3158 }
30667bf3
AM
3159 }
3160
b32b5d6e 3161 if (sec != NULL && sec->output_section != NULL)
74d1c347
AM
3162 gp_val += sec->output_section->vma + sec->output_offset;
3163
3164 elf_gp (abfd) = gp_val;
b34976b6 3165 return TRUE;
30667bf3
AM
3166}
3167
30667bf3
AM
3168/* Build all the stubs associated with the current output file. The
3169 stubs are kept in a hash table attached to the main linker hash
3170 table. We also set up the .plt entries for statically linked PIC
3171 functions here. This function is called via hppaelf_finish in the
3172 linker. */
3173
b34976b6 3174bfd_boolean
c39a58e6 3175elf32_hppa_build_stubs (struct bfd_link_info *info)
30667bf3
AM
3176{
3177 asection *stub_sec;
3178 struct bfd_hash_table *table;
83c81bfe 3179 struct elf32_hppa_link_hash_table *htab;
30667bf3 3180
83c81bfe 3181 htab = hppa_link_hash_table (info);
30667bf3 3182
83c81bfe 3183 for (stub_sec = htab->stub_bfd->sections;
30667bf3
AM
3184 stub_sec != NULL;
3185 stub_sec = stub_sec->next)
3186 {
dc810e39 3187 bfd_size_type size;
30667bf3
AM
3188
3189 /* Allocate memory to hold the linker stubs. */
eea6121a 3190 size = stub_sec->size;
c39a58e6 3191 stub_sec->contents = bfd_zalloc (htab->stub_bfd, size);
30667bf3 3192 if (stub_sec->contents == NULL && size != 0)
b34976b6 3193 return FALSE;
eea6121a 3194 stub_sec->size = 0;
30667bf3
AM
3195 }
3196
3197 /* Build the stubs as directed by the stub hash table. */
a63e02c7 3198 table = &htab->bstab;
30667bf3
AM
3199 bfd_hash_traverse (table, hppa_build_one_stub, info);
3200
b34976b6 3201 return TRUE;
30667bf3
AM
3202}
3203
9b52905e
NC
3204/* Return the base vma address which should be subtracted from the real
3205 address when resolving a dtpoff relocation.
3206 This is PT_TLS segment p_vaddr. */
3207
3208static bfd_vma
3209dtpoff_base (struct bfd_link_info *info)
3210{
3211 /* If tls_sec is NULL, we should have signalled an error already. */
3212 if (elf_hash_table (info)->tls_sec == NULL)
3213 return 0;
3214 return elf_hash_table (info)->tls_sec->vma;
3215}
3216
3217/* Return the relocation value for R_PARISC_TLS_TPOFF*.. */
3218
3219static bfd_vma
3220tpoff (struct bfd_link_info *info, bfd_vma address)
3221{
3222 struct elf_link_hash_table *htab = elf_hash_table (info);
3223
3224 /* If tls_sec is NULL, we should have signalled an error already. */
3225 if (htab->tls_sec == NULL)
3226 return 0;
3227 /* hppa TLS ABI is variant I and static TLS block start just after
3228 tcbhead structure which has 2 pointer fields. */
3229 return (address - htab->tls_sec->vma
3230 + align_power ((bfd_vma) 8, htab->tls_sec->alignment_power));
3231}
3232
c46b7515
AM
3233/* Perform a final link. */
3234
b34976b6 3235static bfd_boolean
c39a58e6 3236elf32_hppa_final_link (bfd *abfd, struct bfd_link_info *info)
c46b7515 3237{
4dc86686 3238 /* Invoke the regular ELF linker to do all the work. */
c152c796 3239 if (!bfd_elf_final_link (abfd, info))
b34976b6 3240 return FALSE;
c46b7515
AM
3241
3242 /* If we're producing a final executable, sort the contents of the
985142a4 3243 unwind section. */
46fe4e66 3244 return elf_hppa_sort_unwind (abfd);
c46b7515
AM
3245}
3246
3247/* Record the lowest address for the data and text segments. */
3248
3249static void
2ea37f1c 3250hppa_record_segment_addr (bfd *abfd, asection *section, void *data)
c46b7515 3251{
83c81bfe 3252 struct elf32_hppa_link_hash_table *htab;
c46b7515 3253
875c0872 3254 htab = (struct elf32_hppa_link_hash_table*) data;
c46b7515
AM
3255
3256 if ((section->flags & (SEC_ALLOC | SEC_LOAD)) == (SEC_ALLOC | SEC_LOAD))
3257 {
2ea37f1c
NC
3258 bfd_vma value;
3259 Elf_Internal_Phdr *p;
3260
3261 p = _bfd_elf_find_segment_containing_section (abfd, section->output_section);
3262 BFD_ASSERT (p != NULL);
3263 value = p->p_vaddr;
c46b7515
AM
3264
3265 if ((section->flags & SEC_READONLY) != 0)
3266 {
83c81bfe
AM
3267 if (value < htab->text_segment_base)
3268 htab->text_segment_base = value;
c46b7515
AM
3269 }
3270 else
3271 {
83c81bfe
AM
3272 if (value < htab->data_segment_base)
3273 htab->data_segment_base = value;
c46b7515
AM
3274 }
3275 }
3276}
3277
30667bf3
AM
3278/* Perform a relocation as part of a final link. */
3279
3280static bfd_reloc_status_type
c39a58e6
AM
3281final_link_relocate (asection *input_section,
3282 bfd_byte *contents,
875c0872 3283 const Elf_Internal_Rela *rela,
c39a58e6
AM
3284 bfd_vma value,
3285 struct elf32_hppa_link_hash_table *htab,
3286 asection *sym_sec,
875c0872 3287 struct elf32_hppa_link_hash_entry *hh,
a252afa4 3288 struct bfd_link_info *info)
30667bf3
AM
3289{
3290 int insn;
875c0872 3291 unsigned int r_type = ELF32_R_TYPE (rela->r_info);
a252afa4 3292 unsigned int orig_r_type = r_type;
30667bf3
AM
3293 reloc_howto_type *howto = elf_hppa_howto_table + r_type;
3294 int r_format = howto->bitsize;
3295 enum hppa_reloc_field_selector_type_alt r_field;
3296 bfd *input_bfd = input_section->owner;
875c0872 3297 bfd_vma offset = rela->r_offset;
30667bf3
AM
3298 bfd_vma max_branch_offset = 0;
3299 bfd_byte *hit_data = contents + offset;
875c0872 3300 bfd_signed_vma addend = rela->r_addend;
30667bf3 3301 bfd_vma location;
875c0872
DA
3302 struct elf32_hppa_stub_hash_entry *hsh = NULL;
3303 int val;
30667bf3
AM
3304
3305 if (r_type == R_PARISC_NONE)
3306 return bfd_reloc_ok;
3307
3308 insn = bfd_get_32 (input_bfd, hit_data);
3309
3310 /* Find out where we are and where we're going. */
3311 location = (offset +
3312 input_section->output_offset +
3313 input_section->output_section->vma);
3314
a252afa4
DA
3315 /* If we are not building a shared library, convert DLTIND relocs to
3316 DPREL relocs. */
3317 if (!info->shared)
3318 {
3319 switch (r_type)
4fc8051d
AM
3320 {
3321 case R_PARISC_DLTIND21L:
3322 r_type = R_PARISC_DPREL21L;
a252afa4
DA
3323 break;
3324
4fc8051d
AM
3325 case R_PARISC_DLTIND14R:
3326 r_type = R_PARISC_DPREL14R;
a252afa4
DA
3327 break;
3328
4fc8051d
AM
3329 case R_PARISC_DLTIND14F:
3330 r_type = R_PARISC_DPREL14F;
a252afa4
DA
3331 break;
3332 }
3333 }
3334
30667bf3
AM
3335 switch (r_type)
3336 {
3337 case R_PARISC_PCREL12F:
3338 case R_PARISC_PCREL17F:
3339 case R_PARISC_PCREL22F:
067fa4a6
AM
3340 /* If this call should go via the plt, find the import stub in
3341 the stub hash. */
30667bf3
AM
3342 if (sym_sec == NULL
3343 || sym_sec->output_section == NULL
875c0872 3344 || (hh != NULL
a63e02c7
DA
3345 && hh->eh.plt.offset != (bfd_vma) -1
3346 && hh->eh.dynindx != -1
875c0872 3347 && !hh->plabel
a252afa4 3348 && (info->shared
a63e02c7
DA
3349 || !hh->eh.def_regular
3350 || hh->eh.root.type == bfd_link_hash_defweak)))
30667bf3 3351 {
875c0872
DA
3352 hsh = hppa_get_stub_entry (input_section, sym_sec,
3353 hh, rela, htab);
3354 if (hsh != NULL)
30667bf3 3355 {
875c0872
DA
3356 value = (hsh->stub_offset
3357 + hsh->stub_sec->output_offset
3358 + hsh->stub_sec->output_section->vma);
30667bf3
AM
3359 addend = 0;
3360 }
875c0872 3361 else if (sym_sec == NULL && hh != NULL
a63e02c7 3362 && hh->eh.root.type == bfd_link_hash_undefweak)
30667bf3 3363 {
db20fd76
AM
3364 /* It's OK if undefined weak. Calls to undefined weak
3365 symbols behave as if the "called" function
3366 immediately returns. We can thus call to a weak
3367 function without first checking whether the function
3368 is defined. */
30667bf3 3369 value = location;
db20fd76 3370 addend = 8;
30667bf3
AM
3371 }
3372 else
f09ebc7d 3373 return bfd_reloc_undefined;
30667bf3
AM
3374 }
3375 /* Fall thru. */
3376
3377 case R_PARISC_PCREL21L:
3378 case R_PARISC_PCREL17C:
3379 case R_PARISC_PCREL17R:
3380 case R_PARISC_PCREL14R:
3381 case R_PARISC_PCREL14F:
36751eee 3382 case R_PARISC_PCREL32:
30667bf3
AM
3383 /* Make it a pc relative offset. */
3384 value -= location;
3385 addend -= 8;
3386 break;
3387
3388 case R_PARISC_DPREL21L:
3389 case R_PARISC_DPREL14R:
3390 case R_PARISC_DPREL14F:
a252afa4
DA
3391 /* Convert instructions that use the linkage table pointer (r19) to
3392 instructions that use the global data pointer (dp). This is the
3393 most efficient way of using PIC code in an incomplete executable,
3394 but the user must follow the standard runtime conventions for
3395 accessing data for this to work. */
3396 if (orig_r_type == R_PARISC_DLTIND21L)
3397 {
3398 /* Convert addil instructions if the original reloc was a
3399 DLTIND21L. GCC sometimes uses a register other than r19 for
3400 the operation, so we must convert any addil instruction
3401 that uses this relocation. */
3402 if ((insn & 0xfc000000) == ((int) OP_ADDIL << 26))
3403 insn = ADDIL_DP;
3404 else
3405 /* We must have a ldil instruction. It's too hard to find
3406 and convert the associated add instruction, so issue an
3407 error. */
3408 (*_bfd_error_handler)
d003868e
AM
3409 (_("%B(%A+0x%lx): %s fixup for insn 0x%x is not supported in a non-shared link"),
3410 input_bfd,
3411 input_section,
875c0872 3412 offset,
a252afa4
DA
3413 howto->name,
3414 insn);
3415 }
3416 else if (orig_r_type == R_PARISC_DLTIND14F)
3417 {
3418 /* This must be a format 1 load/store. Change the base
3419 register to dp. */
3420 insn = (insn & 0xfc1ffff) | (27 << 21);
3421 }
3422
30667bf3 3423 /* For all the DP relative relocations, we need to examine the symbol's
95d0f04a
DA
3424 section. If it has no section or if it's a code section, then
3425 "data pointer relative" makes no sense. In that case we don't
3426 adjust the "value", and for 21 bit addil instructions, we change the
3427 source addend register from %dp to %r0. This situation commonly
3428 arises for undefined weak symbols and when a variable's "constness"
30667bf3
AM
3429 is declared differently from the way the variable is defined. For
3430 instance: "extern int foo" with foo defined as "const int foo". */
95d0f04a 3431 if (sym_sec == NULL || (sym_sec->flags & SEC_CODE) != 0)
30667bf3
AM
3432 {
3433 if ((insn & ((0x3f << 26) | (0x1f << 21)))
3434 == (((int) OP_ADDIL << 26) | (27 << 21)))
3435 {
3436 insn &= ~ (0x1f << 21);
30667bf3
AM
3437 }
3438 /* Now try to make things easy for the dynamic linker. */
3439
3440 break;
3441 }
74d1c347 3442 /* Fall thru. */
30667bf3
AM
3443
3444 case R_PARISC_DLTIND21L:
3445 case R_PARISC_DLTIND14R:
3446 case R_PARISC_DLTIND14F:
9b52905e
NC
3447 case R_PARISC_TLS_GD21L:
3448 case R_PARISC_TLS_GD14R:
3449 case R_PARISC_TLS_LDM21L:
3450 case R_PARISC_TLS_LDM14R:
3451 case R_PARISC_TLS_IE21L:
3452 case R_PARISC_TLS_IE14R:
30667bf3
AM
3453 value -= elf_gp (input_section->output_section->owner);
3454 break;
3455
c46b7515
AM
3456 case R_PARISC_SEGREL32:
3457 if ((sym_sec->flags & SEC_CODE) != 0)
83c81bfe 3458 value -= htab->text_segment_base;
c46b7515 3459 else
83c81bfe 3460 value -= htab->data_segment_base;
c46b7515
AM
3461 break;
3462
30667bf3
AM
3463 default:
3464 break;
3465 }
3466
3467 switch (r_type)
3468 {
3469 case R_PARISC_DIR32:
47d89dba 3470 case R_PARISC_DIR14F:
30667bf3
AM
3471 case R_PARISC_DIR17F:
3472 case R_PARISC_PCREL17C:
3473 case R_PARISC_PCREL14F:
36751eee 3474 case R_PARISC_PCREL32:
30667bf3
AM
3475 case R_PARISC_DPREL14F:
3476 case R_PARISC_PLABEL32:
3477 case R_PARISC_DLTIND14F:
3478 case R_PARISC_SEGBASE:
3479 case R_PARISC_SEGREL32:
9b52905e
NC
3480 case R_PARISC_TLS_DTPMOD32:
3481 case R_PARISC_TLS_DTPOFF32:
3482 case R_PARISC_TLS_TPREL32:
30667bf3
AM
3483 r_field = e_fsel;
3484 break;
3485
1bf42538 3486 case R_PARISC_DLTIND21L:
30667bf3 3487 case R_PARISC_PCREL21L:
30667bf3 3488 case R_PARISC_PLABEL21L:
1bf42538
JL
3489 r_field = e_lsel;
3490 break;
3491
3492 case R_PARISC_DIR21L:
3493 case R_PARISC_DPREL21L:
9b52905e
NC
3494 case R_PARISC_TLS_GD21L:
3495 case R_PARISC_TLS_LDM21L:
3496 case R_PARISC_TLS_LDO21L:
3497 case R_PARISC_TLS_IE21L:
3498 case R_PARISC_TLS_LE21L:
30667bf3
AM
3499 r_field = e_lrsel;
3500 break;
3501
30667bf3 3502 case R_PARISC_PCREL17R:
30667bf3 3503 case R_PARISC_PCREL14R:
30667bf3
AM
3504 case R_PARISC_PLABEL14R:
3505 case R_PARISC_DLTIND14R:
1bf42538
JL
3506 r_field = e_rsel;
3507 break;
3508
3509 case R_PARISC_DIR17R:
3510 case R_PARISC_DIR14R:
3511 case R_PARISC_DPREL14R:
9b52905e
NC
3512 case R_PARISC_TLS_GD14R:
3513 case R_PARISC_TLS_LDM14R:
3514 case R_PARISC_TLS_LDO14R:
3515 case R_PARISC_TLS_IE14R:
3516 case R_PARISC_TLS_LE14R:
30667bf3
AM
3517 r_field = e_rrsel;
3518 break;
3519
3520 case R_PARISC_PCREL12F:
3521 case R_PARISC_PCREL17F:
3522 case R_PARISC_PCREL22F:
3523 r_field = e_fsel;
3524
3525 if (r_type == (unsigned int) R_PARISC_PCREL17F)
3526 {
3527 max_branch_offset = (1 << (17-1)) << 2;
3528 }
3529 else if (r_type == (unsigned int) R_PARISC_PCREL12F)
3530 {
3531 max_branch_offset = (1 << (12-1)) << 2;
3532 }
3533 else
3534 {
3535 max_branch_offset = (1 << (22-1)) << 2;
3536 }
3537
3538 /* sym_sec is NULL on undefined weak syms or when shared on
3539 undefined syms. We've already checked for a stub for the
3540 shared undefined case. */
3541 if (sym_sec == NULL)
3542 break;
3543
3544 /* If the branch is out of reach, then redirect the
3545 call to the local stub for this function. */
3546 if (value + addend + max_branch_offset >= 2*max_branch_offset)
3547 {
875c0872
DA
3548 hsh = hppa_get_stub_entry (input_section, sym_sec,
3549 hh, rela, htab);
3550 if (hsh == NULL)
f09ebc7d 3551 return bfd_reloc_undefined;
30667bf3
AM
3552
3553 /* Munge up the value and addend so that we call the stub
3554 rather than the procedure directly. */
875c0872
DA
3555 value = (hsh->stub_offset
3556 + hsh->stub_sec->output_offset
3557 + hsh->stub_sec->output_section->vma
30667bf3
AM
3558 - location);
3559 addend = -8;
3560 }
3561 break;
3562
3563 /* Something we don't know how to handle. */
3564 default:
3565 return bfd_reloc_notsupported;
3566 }
3567
3568 /* Make sure we can reach the stub. */
3569 if (max_branch_offset != 0
3570 && value + addend + max_branch_offset >= 2*max_branch_offset)
3571 {
3572 (*_bfd_error_handler)
d003868e
AM
3573 (_("%B(%A+0x%lx): cannot reach %s, recompile with -ffunction-sections"),
3574 input_bfd,
3575 input_section,
875c0872 3576 offset,
a63e02c7 3577 hsh->bh_root.string);
ce757d15 3578 bfd_set_error (bfd_error_bad_value);
30667bf3
AM
3579 return bfd_reloc_notsupported;
3580 }
3581
3582 val = hppa_field_adjust (value, addend, r_field);
3583
3584 switch (r_type)
3585 {
3586 case R_PARISC_PCREL12F:
3587 case R_PARISC_PCREL17C:
3588 case R_PARISC_PCREL17F:
3589 case R_PARISC_PCREL17R:
3590 case R_PARISC_PCREL22F:
3591 case R_PARISC_DIR17F:
3592 case R_PARISC_DIR17R:
3593 /* This is a branch. Divide the offset by four.
3594 Note that we need to decide whether it's a branch or
3595 otherwise by inspecting the reloc. Inspecting insn won't
3596 work as insn might be from a .word directive. */
3597 val >>= 2;
3598 break;
3599
3600 default:
3601 break;
3602 }
3603
3604 insn = hppa_rebuild_insn (insn, val, r_format);
3605
3606 /* Update the instruction word. */
74d1c347 3607 bfd_put_32 (input_bfd, (bfd_vma) insn, hit_data);
30667bf3
AM
3608 return bfd_reloc_ok;
3609}
3610
30667bf3
AM
3611/* Relocate an HPPA ELF section. */
3612
b34976b6 3613static bfd_boolean
c39a58e6
AM
3614elf32_hppa_relocate_section (bfd *output_bfd,
3615 struct bfd_link_info *info,
3616 bfd *input_bfd,
3617 asection *input_section,
3618 bfd_byte *contents,
3619 Elf_Internal_Rela *relocs,
3620 Elf_Internal_Sym *local_syms,
3621 asection **local_sections)
30667bf3 3622{
30667bf3 3623 bfd_vma *local_got_offsets;
83c81bfe 3624 struct elf32_hppa_link_hash_table *htab;
30667bf3 3625 Elf_Internal_Shdr *symtab_hdr;
875c0872 3626 Elf_Internal_Rela *rela;
30667bf3 3627 Elf_Internal_Rela *relend;
30667bf3
AM
3628
3629 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3630
83c81bfe 3631 htab = hppa_link_hash_table (info);
74d1c347 3632 local_got_offsets = elf_local_got_offsets (input_bfd);
30667bf3 3633
875c0872 3634 rela = relocs;
30667bf3 3635 relend = relocs + input_section->reloc_count;
875c0872 3636 for (; rela < relend; rela++)
30667bf3
AM
3637 {
3638 unsigned int r_type;
3639 reloc_howto_type *howto;
3640 unsigned int r_symndx;
875c0872 3641 struct elf32_hppa_link_hash_entry *hh;
30667bf3
AM
3642 Elf_Internal_Sym *sym;
3643 asection *sym_sec;
3644 bfd_vma relocation;
875c0872 3645 bfd_reloc_status_type rstatus;
30667bf3 3646 const char *sym_name;
b34976b6
AM
3647 bfd_boolean plabel;
3648 bfd_boolean warned_undef;
30667bf3 3649
875c0872 3650 r_type = ELF32_R_TYPE (rela->r_info);
30667bf3
AM
3651 if (r_type >= (unsigned int) R_PARISC_UNIMPLEMENTED)
3652 {
3653 bfd_set_error (bfd_error_bad_value);
b34976b6 3654 return FALSE;
30667bf3
AM
3655 }
3656 if (r_type == (unsigned int) R_PARISC_GNU_VTENTRY
3657 || r_type == (unsigned int) R_PARISC_GNU_VTINHERIT)
3658 continue;
3659
875c0872
DA
3660 r_symndx = ELF32_R_SYM (rela->r_info);
3661 hh = NULL;
30667bf3
AM
3662 sym = NULL;
3663 sym_sec = NULL;
b34976b6 3664 warned_undef = FALSE;
30667bf3
AM
3665 if (r_symndx < symtab_hdr->sh_info)
3666 {
3667 /* This is a local symbol, h defaults to NULL. */
3668 sym = local_syms + r_symndx;
3669 sym_sec = local_sections[r_symndx];
875c0872 3670 relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sym_sec, rela);
30667bf3
AM
3671 }
3672 else
3673 {
875c0872 3674 struct elf_link_hash_entry *eh;
560e09e9 3675 bfd_boolean unresolved_reloc;
b2a8e766 3676 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
560e09e9 3677
875c0872 3678 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rela,
b2a8e766 3679 r_symndx, symtab_hdr, sym_hashes,
875c0872 3680 eh, sym_sec, relocation,
b2a8e766 3681 unresolved_reloc, warned_undef);
560e09e9 3682
ab96bf03
AM
3683 if (!info->relocatable
3684 && relocation == 0
875c0872
DA
3685 && eh->root.type != bfd_link_hash_defined
3686 && eh->root.type != bfd_link_hash_defweak
3687 && eh->root.type != bfd_link_hash_undefweak)
4fc8051d 3688 {
59c2e50f 3689 if (info->unresolved_syms_in_objects == RM_IGNORE
875c0872
DA
3690 && ELF_ST_VISIBILITY (eh->other) == STV_DEFAULT
3691 && eh->type == STT_PARISC_MILLI)
560e09e9
NC
3692 {
3693 if (! info->callbacks->undefined_symbol
9b52905e 3694 (info, eh_name (eh), input_bfd,
875c0872 3695 input_section, rela->r_offset, FALSE))
560e09e9
NC
3696 return FALSE;
3697 warned_undef = TRUE;
3698 }
30667bf3 3699 }
875c0872 3700 hh = hppa_elf_hash_entry (eh);
30667bf3
AM
3701 }
3702
ab96bf03
AM
3703 if (sym_sec != NULL && elf_discarded_section (sym_sec))
3704 {
3705 /* For relocs against symbols from removed linkonce
3706 sections, or sections discarded by a linker script,
3707 we just want the section contents zeroed. Avoid any
3708 special processing. */
3709 _bfd_clear_contents (elf_hppa_howto_table + r_type, input_bfd,
3710 contents + rela->r_offset);
3711 rela->r_info = 0;
3712 rela->r_addend = 0;
3713 continue;
3714 }
3715
3716 if (info->relocatable)
3717 continue;
3718
30667bf3 3719 /* Do any required modifications to the relocation value, and
25f72752
AM
3720 determine what types of dynamic info we need to output, if
3721 any. */
74d1c347 3722 plabel = 0;
30667bf3
AM
3723 switch (r_type)
3724 {
3725 case R_PARISC_DLTIND14F:
3726 case R_PARISC_DLTIND14R:
3727 case R_PARISC_DLTIND21L:
ce757d15
AM
3728 {
3729 bfd_vma off;
b34976b6 3730 bfd_boolean do_got = 0;
ce757d15
AM
3731
3732 /* Relocation is to the entry for this symbol in the
3733 global offset table. */
875c0872 3734 if (hh != NULL)
ce757d15 3735 {
b34976b6 3736 bfd_boolean dyn;
ce757d15 3737
a63e02c7
DA
3738 off = hh->eh.got.offset;
3739 dyn = htab->etab.dynamic_sections_created;
c152c796 3740 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared,
a63e02c7 3741 &hh->eh))
ce757d15
AM
3742 {
3743 /* If we aren't going to call finish_dynamic_symbol,
3744 then we need to handle initialisation of the .got
3745 entry and create needed relocs here. Since the
3746 offset must always be a multiple of 4, we use the
3747 least significant bit to record whether we have
3748 initialised it already. */
3749 if ((off & 1) != 0)
3750 off &= ~1;
3751 else
3752 {
a63e02c7 3753 hh->eh.got.offset |= 1;
ce757d15
AM
3754 do_got = 1;
3755 }
3756 }
3757 }
3758 else
3759 {
3760 /* Local symbol case. */
3761 if (local_got_offsets == NULL)
3762 abort ();
3763
3764 off = local_got_offsets[r_symndx];
3765
3766 /* The offset must always be a multiple of 4. We use
3767 the least significant bit to record whether we have
3768 already generated the necessary reloc. */
3769 if ((off & 1) != 0)
3770 off &= ~1;
3771 else
3772 {
3773 local_got_offsets[r_symndx] |= 1;
3774 do_got = 1;
3775 }
3776 }
68fb2e56 3777
ce757d15
AM
3778 if (do_got)
3779 {
3780 if (info->shared)
3781 {
3782 /* Output a dynamic relocation for this GOT entry.
3783 In this case it is relative to the base of the
3784 object because the symbol index is zero. */
3785 Elf_Internal_Rela outrel;
947216bf 3786 bfd_byte *loc;
875c0872 3787 asection *sec = htab->srelgot;
ce757d15
AM
3788
3789 outrel.r_offset = (off
3790 + htab->sgot->output_offset
3791 + htab->sgot->output_section->vma);
3792 outrel.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
3793 outrel.r_addend = relocation;
875c0872
DA
3794 loc = sec->contents;
3795 loc += sec->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3796 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3797 }
3798 else
30667bf3 3799 bfd_put_32 (output_bfd, relocation,
83c81bfe 3800 htab->sgot->contents + off);
ce757d15 3801 }
30667bf3 3802
ce757d15
AM
3803 if (off >= (bfd_vma) -2)
3804 abort ();
30667bf3 3805
ce757d15
AM
3806 /* Add the base of the GOT to the relocation value. */
3807 relocation = (off
3808 + htab->sgot->output_offset
3809 + htab->sgot->output_section->vma);
3810 }
30667bf3 3811 break;
252b5132 3812
c46b7515
AM
3813 case R_PARISC_SEGREL32:
3814 /* If this is the first SEGREL relocation, then initialize
3815 the segment base values. */
83c81bfe
AM
3816 if (htab->text_segment_base == (bfd_vma) -1)
3817 bfd_map_over_sections (output_bfd, hppa_record_segment_addr, htab);
c46b7515
AM
3818 break;
3819
30667bf3
AM
3820 case R_PARISC_PLABEL14R:
3821 case R_PARISC_PLABEL21L:
3822 case R_PARISC_PLABEL32:
a63e02c7 3823 if (htab->etab.dynamic_sections_created)
252b5132 3824 {
ce757d15 3825 bfd_vma off;
b34976b6 3826 bfd_boolean do_plt = 0;
74d1c347
AM
3827 /* If we have a global symbol with a PLT slot, then
3828 redirect this relocation to it. */
875c0872 3829 if (hh != NULL)
74d1c347 3830 {
a63e02c7 3831 off = hh->eh.plt.offset;
c152c796 3832 if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared,
a63e02c7 3833 &hh->eh))
8dea1268
AM
3834 {
3835 /* In a non-shared link, adjust_dynamic_symbols
3836 isn't called for symbols forced local. We
dc810e39 3837 need to write out the plt entry here. */
8dea1268
AM
3838 if ((off & 1) != 0)
3839 off &= ~1;
3840 else
3841 {
a63e02c7 3842 hh->eh.plt.offset |= 1;
ce757d15 3843 do_plt = 1;
8dea1268
AM
3844 }
3845 }
74d1c347
AM
3846 }
3847 else
3848 {
68fb2e56
AM
3849 bfd_vma *local_plt_offsets;
3850
3851 if (local_got_offsets == NULL)
3852 abort ();
74d1c347 3853
68fb2e56
AM
3854 local_plt_offsets = local_got_offsets + symtab_hdr->sh_info;
3855 off = local_plt_offsets[r_symndx];
74d1c347
AM
3856
3857 /* As for the local .got entry case, we use the last
3858 bit to record whether we've already initialised
3859 this local .plt entry. */
3860 if ((off & 1) != 0)
3861 off &= ~1;
ce757d15
AM
3862 else
3863 {
3864 local_plt_offsets[r_symndx] |= 1;
3865 do_plt = 1;
3866 }
3867 }
3868
3869 if (do_plt)
3870 {
3871 if (info->shared)
3872 {
3873 /* Output a dynamic IPLT relocation for this
3874 PLT entry. */
3875 Elf_Internal_Rela outrel;
947216bf
AM
3876 bfd_byte *loc;
3877 asection *s = htab->srelplt;
ce757d15
AM
3878
3879 outrel.r_offset = (off
3880 + htab->splt->output_offset
3881 + htab->splt->output_section->vma);
3882 outrel.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
3883 outrel.r_addend = relocation;
947216bf
AM
3884 loc = s->contents;
3885 loc += s->reloc_count++ * sizeof (Elf32_External_Rela);
ce757d15
AM
3886 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
3887 }
74d1c347
AM
3888 else
3889 {
3890 bfd_put_32 (output_bfd,
3891 relocation,
83c81bfe 3892 htab->splt->contents + off);
74d1c347 3893 bfd_put_32 (output_bfd,
83c81bfe
AM
3894 elf_gp (htab->splt->output_section->owner),
3895 htab->splt->contents + off + 4);
74d1c347
AM
3896 }
3897 }
3898
68fb2e56 3899 if (off >= (bfd_vma) -2)
49e9d0d3 3900 abort ();
74d1c347
AM
3901
3902 /* PLABELs contain function pointers. Relocation is to
3903 the entry for the function in the .plt. The magic +2
3904 offset signals to $$dyncall that the function pointer
3905 is in the .plt and thus has a gp pointer too.
3906 Exception: Undefined PLABELs should have a value of
3907 zero. */
875c0872 3908 if (hh == NULL
a63e02c7
DA
3909 || (hh->eh.root.type != bfd_link_hash_undefweak
3910 && hh->eh.root.type != bfd_link_hash_undefined))
74d1c347
AM
3911 {
3912 relocation = (off
83c81bfe
AM
3913 + htab->splt->output_offset
3914 + htab->splt->output_section->vma
74d1c347
AM
3915 + 2);
3916 }
3917 plabel = 1;
30667bf3
AM
3918 }
3919 /* Fall through and possibly emit a dynamic relocation. */
3920
3921 case R_PARISC_DIR17F:
3922 case R_PARISC_DIR17R:
47d89dba 3923 case R_PARISC_DIR14F:
30667bf3
AM
3924 case R_PARISC_DIR14R:
3925 case R_PARISC_DIR21L:
3926 case R_PARISC_DPREL14F:
3927 case R_PARISC_DPREL14R:
3928 case R_PARISC_DPREL21L:
3929 case R_PARISC_DIR32:
b1e24c02 3930 if ((input_section->flags & SEC_ALLOC) == 0)
ec338859
AM
3931 break;
3932
30667bf3 3933 /* The reloc types handled here and this conditional
56882138 3934 expression must match the code in ..check_relocs and
ec338859 3935 allocate_dynrelocs. ie. We need exactly the same condition
56882138
AM
3936 as in ..check_relocs, with some extra conditions (dynindx
3937 test in this case) to cater for relocs removed by
ec338859 3938 allocate_dynrelocs. If you squint, the non-shared test
56882138
AM
3939 here does indeed match the one in ..check_relocs, the
3940 difference being that here we test DEF_DYNAMIC as well as
3941 !DEF_REGULAR. All common syms end up with !DEF_REGULAR,
3942 which is why we can't use just that test here.
3943 Conversely, DEF_DYNAMIC can't be used in check_relocs as
3944 there all files have not been loaded. */
446f2863 3945 if ((info->shared
875c0872 3946 && (hh == NULL
a63e02c7
DA
3947 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
3948 || hh->eh.root.type != bfd_link_hash_undefweak)
446f2863 3949 && (IS_ABSOLUTE_RELOC (r_type)
a63e02c7 3950 || !SYMBOL_CALLS_LOCAL (info, &hh->eh)))
446f2863 3951 || (!info->shared
875c0872 3952 && hh != NULL
a63e02c7
DA
3953 && hh->eh.dynindx != -1
3954 && !hh->eh.non_got_ref
4fc8051d 3955 && ((ELIMINATE_COPY_RELOCS
a63e02c7
DA
3956 && hh->eh.def_dynamic
3957 && !hh->eh.def_regular)
3958 || hh->eh.root.type == bfd_link_hash_undefweak
3959 || hh->eh.root.type == bfd_link_hash_undefined)))
30667bf3
AM
3960 {
3961 Elf_Internal_Rela outrel;
b34976b6 3962 bfd_boolean skip;
98ceb8ce 3963 asection *sreloc;
947216bf 3964 bfd_byte *loc;
252b5132 3965
30667bf3
AM
3966 /* When generating a shared object, these relocations
3967 are copied into the output file to be resolved at run
3968 time. */
252b5132 3969
875c0872 3970 outrel.r_addend = rela->r_addend;
c629eae0
JJ
3971 outrel.r_offset =
3972 _bfd_elf_section_offset (output_bfd, info, input_section,
875c0872 3973 rela->r_offset);
0bb2d96a
JJ
3974 skip = (outrel.r_offset == (bfd_vma) -1
3975 || outrel.r_offset == (bfd_vma) -2);
30667bf3
AM
3976 outrel.r_offset += (input_section->output_offset
3977 + input_section->output_section->vma);
875c0872 3978
30667bf3 3979 if (skip)
252b5132 3980 {
30667bf3 3981 memset (&outrel, 0, sizeof (outrel));
252b5132 3982 }
875c0872 3983 else if (hh != NULL
a63e02c7 3984 && hh->eh.dynindx != -1
74d1c347 3985 && (plabel
446f2863
AM
3986 || !IS_ABSOLUTE_RELOC (r_type)
3987 || !info->shared
74d1c347 3988 || !info->symbolic
a63e02c7 3989 || !hh->eh.def_regular))
252b5132 3990 {
a63e02c7 3991 outrel.r_info = ELF32_R_INFO (hh->eh.dynindx, r_type);
30667bf3
AM
3992 }
3993 else /* It's a local symbol, or one marked to become local. */
3994 {
3995 int indx = 0;
edd21aca 3996
30667bf3
AM
3997 /* Add the absolute offset of the symbol. */
3998 outrel.r_addend += relocation;
edd21aca 3999
74d1c347
AM
4000 /* Global plabels need to be processed by the
4001 dynamic linker so that functions have at most one
4002 fptr. For this reason, we need to differentiate
4003 between global and local plabels, which we do by
4004 providing the function symbol for a global plabel
4005 reloc, and no symbol for local plabels. */
4006 if (! plabel
4007 && sym_sec != NULL
30667bf3
AM
4008 && sym_sec->output_section != NULL
4009 && ! bfd_is_abs_section (sym_sec))
252b5132 4010 {
74541ad4
AM
4011 asection *osec;
4012
4013 osec = sym_sec->output_section;
4014 indx = elf_section_data (osec)->dynindx;
4015 if (indx == 0)
4016 {
4017 osec = htab->etab.text_index_section;
4018 indx = elf_section_data (osec)->dynindx;
4019 }
4020 BFD_ASSERT (indx != 0);
4b71bec0 4021
30667bf3
AM
4022 /* We are turning this relocation into one
4023 against a section symbol, so subtract out the
4024 output section's address but not the offset
4025 of the input section in the output section. */
74541ad4 4026 outrel.r_addend -= osec->vma;
252b5132 4027 }
252b5132 4028
30667bf3
AM
4029 outrel.r_info = ELF32_R_INFO (indx, r_type);
4030 }
98ceb8ce
AM
4031 sreloc = elf_section_data (input_section)->sreloc;
4032 if (sreloc == NULL)
4033 abort ();
4034
947216bf
AM
4035 loc = sreloc->contents;
4036 loc += sreloc->reloc_count++ * sizeof (Elf32_External_Rela);
98ceb8ce 4037 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
30667bf3
AM
4038 }
4039 break;
9b52905e
NC
4040
4041 case R_PARISC_TLS_LDM21L:
4042 case R_PARISC_TLS_LDM14R:
4043 {
4044 bfd_vma off;
4045
4046 off = htab->tls_ldm_got.offset;
4047 if (off & 1)
4048 off &= ~1;
4049 else
4050 {
4051 Elf_Internal_Rela outrel;
4052 bfd_byte *loc;
4053
4054 outrel.r_offset = (off
4055 + htab->sgot->output_section->vma
4056 + htab->sgot->output_offset);
4057 outrel.r_addend = 0;
4058 outrel.r_info = ELF32_R_INFO (0, R_PARISC_TLS_DTPMOD32);
4059 loc = htab->srelgot->contents;
4060 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
4061
4062 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4063 htab->tls_ldm_got.offset |= 1;
4064 }
4065
4066 /* Add the base of the GOT to the relocation value. */
4067 relocation = (off
4068 + htab->sgot->output_offset
4069 + htab->sgot->output_section->vma);
4070
4071 break;
4072 }
4073
4074 case R_PARISC_TLS_LDO21L:
4075 case R_PARISC_TLS_LDO14R:
4076 relocation -= dtpoff_base (info);
4077 break;
4078
4079 case R_PARISC_TLS_GD21L:
4080 case R_PARISC_TLS_GD14R:
4081 case R_PARISC_TLS_IE21L:
4082 case R_PARISC_TLS_IE14R:
4083 {
4084 bfd_vma off;
4085 int indx;
4086 char tls_type;
4087
4088 indx = 0;
4089 if (hh != NULL)
4090 {
4091 bfd_boolean dyn;
4092 dyn = htab->etab.dynamic_sections_created;
4093
4094 if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, &hh->eh)
4095 && (!info->shared
4096 || !SYMBOL_REFERENCES_LOCAL (info, &hh->eh)))
4097 {
4098 indx = hh->eh.dynindx;
4099 }
4100 off = hh->eh.got.offset;
4101 tls_type = hh->tls_type;
4102 }
4103 else
4104 {
4105 off = local_got_offsets[r_symndx];
4106 tls_type = hppa_elf_local_got_tls_type (input_bfd)[r_symndx];
4107 }
4108
4109 if (tls_type == GOT_UNKNOWN)
4110 abort ();
4111
4112 if ((off & 1) != 0)
4113 off &= ~1;
4114 else
4115 {
4116 bfd_boolean need_relocs = FALSE;
4117 Elf_Internal_Rela outrel;
4118 bfd_byte *loc = NULL;
4119 int cur_off = off;
4120
4121 /* The GOT entries have not been initialized yet. Do it
4122 now, and emit any relocations. If both an IE GOT and a
4123 GD GOT are necessary, we emit the GD first. */
4124
4125 if ((info->shared || indx != 0)
4126 && (hh == NULL
4127 || ELF_ST_VISIBILITY (hh->eh.other) == STV_DEFAULT
4128 || hh->eh.root.type != bfd_link_hash_undefweak))
4129 {
4130 need_relocs = TRUE;
4131 loc = htab->srelgot->contents;
4132 /* FIXME (CAO): Should this be reloc_count++ ? */
4133 loc += htab->srelgot->reloc_count * sizeof (Elf32_External_Rela);
4134 }
4135
4136 if (tls_type & GOT_TLS_GD)
4137 {
4138 if (need_relocs)
4139 {
4140 outrel.r_offset = (cur_off
4141 + htab->sgot->output_section->vma
4142 + htab->sgot->output_offset);
4143 outrel.r_info = ELF32_R_INFO (indx,R_PARISC_TLS_DTPMOD32);
4144 outrel.r_addend = 0;
4145 bfd_put_32 (output_bfd, 0, htab->sgot->contents + cur_off);
4146 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4147 htab->srelgot->reloc_count++;
4148 loc += sizeof (Elf32_External_Rela);
4149
4150 if (indx == 0)
4151 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4152 htab->sgot->contents + cur_off + 4);
4153 else
4154 {
4155 bfd_put_32 (output_bfd, 0,
4156 htab->sgot->contents + cur_off + 4);
4157 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_DTPOFF32);
4158 outrel.r_offset += 4;
4159 bfd_elf32_swap_reloca_out (output_bfd, &outrel,loc);
4160 htab->srelgot->reloc_count++;
4161 loc += sizeof (Elf32_External_Rela);
4162 }
4163 }
4164 else
4165 {
4166 /* If we are not emitting relocations for a
4167 general dynamic reference, then we must be in a
4168 static link or an executable link with the
4169 symbol binding locally. Mark it as belonging
4170 to module 1, the executable. */
4171 bfd_put_32 (output_bfd, 1,
4172 htab->sgot->contents + cur_off);
4173 bfd_put_32 (output_bfd, relocation - dtpoff_base (info),
4174 htab->sgot->contents + cur_off + 4);
4175 }
4176
4177
4178 cur_off += 8;
4179 }
4180
4181 if (tls_type & GOT_TLS_IE)
4182 {
4183 if (need_relocs)
4184 {
4185 outrel.r_offset = (cur_off
4186 + htab->sgot->output_section->vma
4187 + htab->sgot->output_offset);
4188 outrel.r_info = ELF32_R_INFO (indx, R_PARISC_TLS_TPREL32);
4189
4190 if (indx == 0)
4191 outrel.r_addend = relocation - dtpoff_base (info);
4192 else
4193 outrel.r_addend = 0;
4194
4195 bfd_elf32_swap_reloca_out (output_bfd, &outrel, loc);
4196 htab->srelgot->reloc_count++;
4197 loc += sizeof (Elf32_External_Rela);
4198 }
4199 else
4200 bfd_put_32 (output_bfd, tpoff (info, relocation),
4201 htab->sgot->contents + cur_off);
4202
4203 cur_off += 4;
4204 }
4205
4206 if (hh != NULL)
4207 hh->eh.got.offset |= 1;
4208 else
4209 local_got_offsets[r_symndx] |= 1;
4210 }
4211
4212 if ((tls_type & GOT_TLS_GD)
4213 && r_type != R_PARISC_TLS_GD21L
4214 && r_type != R_PARISC_TLS_GD14R)
4215 off += 2 * GOT_ENTRY_SIZE;
4216
4217 /* Add the base of the GOT to the relocation value. */
4218 relocation = (off
4219 + htab->sgot->output_offset
4220 + htab->sgot->output_section->vma);
4221
4222 break;
4223 }
4224
4225 case R_PARISC_TLS_LE21L:
4226 case R_PARISC_TLS_LE14R:
4227 {
4228 relocation = tpoff (info, relocation);
4229 break;
4230 }
4231 break;
edd21aca 4232
30667bf3
AM
4233 default:
4234 break;
4235 }
252b5132 4236
875c0872
DA
4237 rstatus = final_link_relocate (input_section, contents, rela, relocation,
4238 htab, sym_sec, hh, info);
252b5132 4239
875c0872 4240 if (rstatus == bfd_reloc_ok)
30667bf3 4241 continue;
252b5132 4242
875c0872 4243 if (hh != NULL)
9b52905e 4244 sym_name = hh_name (hh);
30667bf3
AM
4245 else
4246 {
4247 sym_name = bfd_elf_string_from_elf_section (input_bfd,
4248 symtab_hdr->sh_link,
4249 sym->st_name);
4250 if (sym_name == NULL)
b34976b6 4251 return FALSE;
30667bf3
AM
4252 if (*sym_name == '\0')
4253 sym_name = bfd_section_name (input_bfd, sym_sec);
4254 }
edd21aca 4255
30667bf3 4256 howto = elf_hppa_howto_table + r_type;
252b5132 4257
875c0872 4258 if (rstatus == bfd_reloc_undefined || rstatus == bfd_reloc_notsupported)
30667bf3 4259 {
875c0872 4260 if (rstatus == bfd_reloc_notsupported || !warned_undef)
f09ebc7d
AM
4261 {
4262 (*_bfd_error_handler)
d003868e
AM
4263 (_("%B(%A+0x%lx): cannot handle %s for %s"),
4264 input_bfd,
4265 input_section,
875c0872 4266 (long) rela->r_offset,
f09ebc7d
AM
4267 howto->name,
4268 sym_name);
4269 bfd_set_error (bfd_error_bad_value);
b34976b6 4270 return FALSE;
f09ebc7d 4271 }
30667bf3
AM
4272 }
4273 else
4274 {
4275 if (!((*info->callbacks->reloc_overflow)
a63e02c7 4276 (info, (hh ? &hh->eh.root : NULL), sym_name, howto->name,
875c0872 4277 (bfd_vma) 0, input_bfd, input_section, rela->r_offset)))
b34976b6 4278 return FALSE;
30667bf3
AM
4279 }
4280 }
edd21aca 4281
b34976b6 4282 return TRUE;
30667bf3 4283}
252b5132 4284
30667bf3
AM
4285/* Finish up dynamic symbol handling. We set the contents of various
4286 dynamic sections here. */
252b5132 4287
b34976b6 4288static bfd_boolean
c39a58e6
AM
4289elf32_hppa_finish_dynamic_symbol (bfd *output_bfd,
4290 struct bfd_link_info *info,
875c0872 4291 struct elf_link_hash_entry *eh,
c39a58e6 4292 Elf_Internal_Sym *sym)
30667bf3 4293{
83c81bfe 4294 struct elf32_hppa_link_hash_table *htab;
875c0872 4295 Elf_Internal_Rela rela;
a252afa4 4296 bfd_byte *loc;
edd21aca 4297
83c81bfe 4298 htab = hppa_link_hash_table (info);
30667bf3 4299
875c0872 4300 if (eh->plt.offset != (bfd_vma) -1)
30667bf3
AM
4301 {
4302 bfd_vma value;
30667bf3 4303
875c0872 4304 if (eh->plt.offset & 1)
8dea1268
AM
4305 abort ();
4306
30667bf3
AM
4307 /* This symbol has an entry in the procedure linkage table. Set
4308 it up.
4309
4310 The format of a plt entry is
74d1c347
AM
4311 <funcaddr>
4312 <__gp>
47d89dba 4313 */
30667bf3 4314 value = 0;
875c0872
DA
4315 if (eh->root.type == bfd_link_hash_defined
4316 || eh->root.type == bfd_link_hash_defweak)
30667bf3 4317 {
875c0872
DA
4318 value = eh->root.u.def.value;
4319 if (eh->root.u.def.section->output_section != NULL)
4320 value += (eh->root.u.def.section->output_offset
4321 + eh->root.u.def.section->output_section->vma);
252b5132 4322 }
edd21aca 4323
a252afa4 4324 /* Create a dynamic IPLT relocation for this entry. */
875c0872 4325 rela.r_offset = (eh->plt.offset
a252afa4
DA
4326 + htab->splt->output_offset
4327 + htab->splt->output_section->vma);
875c0872 4328 if (eh->dynindx != -1)
30667bf3 4329 {
875c0872
DA
4330 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_IPLT);
4331 rela.r_addend = 0;
30667bf3 4332 }
ce757d15 4333 else
47d89dba 4334 {
a252afa4
DA
4335 /* This symbol has been marked to become local, and is
4336 used by a plabel so must be kept in the .plt. */
875c0872
DA
4337 rela.r_info = ELF32_R_INFO (0, R_PARISC_IPLT);
4338 rela.r_addend = value;
47d89dba
AM
4339 }
4340
a252afa4
DA
4341 loc = htab->srelplt->contents;
4342 loc += htab->srelplt->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4343 bfd_elf32_swap_reloca_out (htab->splt->output_section->owner, &rela, loc);
a252afa4 4344
875c0872 4345 if (!eh->def_regular)
30667bf3
AM
4346 {
4347 /* Mark the symbol as undefined, rather than as defined in
4348 the .plt section. Leave the value alone. */
4349 sym->st_shndx = SHN_UNDEF;
4350 }
4351 }
edd21aca 4352
9b52905e
NC
4353 if (eh->got.offset != (bfd_vma) -1
4354 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_GD) == 0
4355 && (hppa_elf_hash_entry (eh)->tls_type & GOT_TLS_IE) == 0)
30667bf3 4356 {
30667bf3
AM
4357 /* This symbol has an entry in the global offset table. Set it
4358 up. */
4359
875c0872 4360 rela.r_offset = ((eh->got.offset &~ (bfd_vma) 1)
83c81bfe
AM
4361 + htab->sgot->output_offset
4362 + htab->sgot->output_section->vma);
30667bf3 4363
4dc86686
AM
4364 /* If this is a -Bsymbolic link and the symbol is defined
4365 locally or was forced to be local because of a version file,
4366 we just want to emit a RELATIVE reloc. The entry in the
4367 global offset table will already have been initialized in the
4368 relocate_section function. */
4369 if (info->shared
875c0872
DA
4370 && (info->symbolic || eh->dynindx == -1)
4371 && eh->def_regular)
30667bf3 4372 {
875c0872
DA
4373 rela.r_info = ELF32_R_INFO (0, R_PARISC_DIR32);
4374 rela.r_addend = (eh->root.u.def.value
4375 + eh->root.u.def.section->output_offset
4376 + eh->root.u.def.section->output_section->vma);
30667bf3
AM
4377 }
4378 else
4379 {
875c0872 4380 if ((eh->got.offset & 1) != 0)
49e9d0d3 4381 abort ();
875c0872
DA
4382
4383 bfd_put_32 (output_bfd, 0, htab->sgot->contents + (eh->got.offset & ~1));
4384 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_DIR32);
4385 rela.r_addend = 0;
30667bf3 4386 }
edd21aca 4387
947216bf
AM
4388 loc = htab->srelgot->contents;
4389 loc += htab->srelgot->reloc_count++ * sizeof (Elf32_External_Rela);
875c0872 4390 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3 4391 }
edd21aca 4392
875c0872 4393 if (eh->needs_copy)
30667bf3 4394 {
875c0872 4395 asection *sec;
30667bf3
AM
4396
4397 /* This symbol needs a copy reloc. Set it up. */
4398
875c0872
DA
4399 if (! (eh->dynindx != -1
4400 && (eh->root.type == bfd_link_hash_defined
4401 || eh->root.type == bfd_link_hash_defweak)))
49e9d0d3 4402 abort ();
30667bf3 4403
875c0872 4404 sec = htab->srelbss;
30667bf3 4405
875c0872
DA
4406 rela.r_offset = (eh->root.u.def.value
4407 + eh->root.u.def.section->output_offset
4408 + eh->root.u.def.section->output_section->vma);
4409 rela.r_addend = 0;
4410 rela.r_info = ELF32_R_INFO (eh->dynindx, R_PARISC_COPY);
4411 loc = sec->contents + sec->reloc_count++ * sizeof (Elf32_External_Rela);
4412 bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
30667bf3
AM
4413 }
4414
4415 /* Mark _DYNAMIC and _GLOBAL_OFFSET_TABLE_ as absolute. */
9b52905e
NC
4416 if (eh_name (eh)[0] == '_'
4417 && (strcmp (eh_name (eh), "_DYNAMIC") == 0
22edb2f1 4418 || eh == htab->etab.hgot))
30667bf3
AM
4419 {
4420 sym->st_shndx = SHN_ABS;
4421 }
4422
b34976b6 4423 return TRUE;
30667bf3
AM
4424}
4425
98ceb8ce
AM
4426/* Used to decide how to sort relocs in an optimal manner for the
4427 dynamic linker, before writing them out. */
4428
4429static enum elf_reloc_type_class
c39a58e6 4430elf32_hppa_reloc_type_class (const Elf_Internal_Rela *rela)
98ceb8ce 4431{
9b52905e
NC
4432 /* Handle TLS relocs first; we don't want them to be marked
4433 relative by the "if (ELF32_R_SYM (rela->r_info) == 0)"
4434 check below. */
4435 switch ((int) ELF32_R_TYPE (rela->r_info))
4436 {
4437 case R_PARISC_TLS_DTPMOD32:
4438 case R_PARISC_TLS_DTPOFF32:
4439 case R_PARISC_TLS_TPREL32:
4440 return reloc_class_normal;
4441 }
4442
98ceb8ce
AM
4443 if (ELF32_R_SYM (rela->r_info) == 0)
4444 return reloc_class_relative;
4445
4446 switch ((int) ELF32_R_TYPE (rela->r_info))
4447 {
4448 case R_PARISC_IPLT:
4449 return reloc_class_plt;
4450 case R_PARISC_COPY:
4451 return reloc_class_copy;
4452 default:
4453 return reloc_class_normal;
4454 }
4455}
4456
30667bf3
AM
4457/* Finish up the dynamic sections. */
4458
b34976b6 4459static bfd_boolean
c39a58e6
AM
4460elf32_hppa_finish_dynamic_sections (bfd *output_bfd,
4461 struct bfd_link_info *info)
30667bf3
AM
4462{
4463 bfd *dynobj;
83c81bfe 4464 struct elf32_hppa_link_hash_table *htab;
30667bf3
AM
4465 asection *sdyn;
4466
83c81bfe 4467 htab = hppa_link_hash_table (info);
a63e02c7 4468 dynobj = htab->etab.dynobj;
30667bf3
AM
4469
4470 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4471
a63e02c7 4472 if (htab->etab.dynamic_sections_created)
30667bf3
AM
4473 {
4474 Elf32_External_Dyn *dyncon, *dynconend;
4475
49e9d0d3
AM
4476 if (sdyn == NULL)
4477 abort ();
30667bf3
AM
4478
4479 dyncon = (Elf32_External_Dyn *) sdyn->contents;
eea6121a 4480 dynconend = (Elf32_External_Dyn *) (sdyn->contents + sdyn->size);
30667bf3 4481 for (; dyncon < dynconend; dyncon++)
edd21aca 4482 {
30667bf3
AM
4483 Elf_Internal_Dyn dyn;
4484 asection *s;
4485
4486 bfd_elf32_swap_dyn_in (dynobj, dyncon, &dyn);
4487
4488 switch (dyn.d_tag)
4489 {
4490 default:
3ac8354b 4491 continue;
30667bf3
AM
4492
4493 case DT_PLTGOT:
4494 /* Use PLTGOT to set the GOT register. */
4495 dyn.d_un.d_ptr = elf_gp (output_bfd);
30667bf3
AM
4496 break;
4497
4498 case DT_JMPREL:
83c81bfe 4499 s = htab->srelplt;
30667bf3 4500 dyn.d_un.d_ptr = s->output_section->vma + s->output_offset;
30667bf3
AM
4501 break;
4502
4503 case DT_PLTRELSZ:
83c81bfe 4504 s = htab->srelplt;
eea6121a 4505 dyn.d_un.d_val = s->size;
30667bf3 4506 break;
4e12ff7f
AM
4507
4508 case DT_RELASZ:
4509 /* Don't count procedure linkage table relocs in the
4510 overall reloc count. */
6348e046
AM
4511 s = htab->srelplt;
4512 if (s == NULL)
4513 continue;
eea6121a 4514 dyn.d_un.d_val -= s->size;
6348e046
AM
4515 break;
4516
4517 case DT_RELA:
4518 /* We may not be using the standard ELF linker script.
4519 If .rela.plt is the first .rela section, we adjust
4520 DT_RELA to not include it. */
4521 s = htab->srelplt;
4522 if (s == NULL)
4523 continue;
4524 if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset)
4525 continue;
eea6121a 4526 dyn.d_un.d_ptr += s->size;
4e12ff7f 4527 break;
30667bf3 4528 }
3ac8354b
AM
4529
4530 bfd_elf32_swap_dyn_out (output_bfd, &dyn, dyncon);
edd21aca 4531 }
252b5132 4532 }
edd21aca 4533
eea6121a 4534 if (htab->sgot != NULL && htab->sgot->size != 0)
30667bf3 4535 {
74d1c347
AM
4536 /* Fill in the first entry in the global offset table.
4537 We use it to point to our dynamic section, if we have one. */
30667bf3 4538 bfd_put_32 (output_bfd,
c39a58e6 4539 sdyn ? sdyn->output_section->vma + sdyn->output_offset : 0,
83c81bfe 4540 htab->sgot->contents);
30667bf3 4541
74d1c347 4542 /* The second entry is reserved for use by the dynamic linker. */
83c81bfe 4543 memset (htab->sgot->contents + GOT_ENTRY_SIZE, 0, GOT_ENTRY_SIZE);
74d1c347 4544
30667bf3 4545 /* Set .got entry size. */
83c81bfe 4546 elf_section_data (htab->sgot->output_section)
74d1c347 4547 ->this_hdr.sh_entsize = GOT_ENTRY_SIZE;
30667bf3
AM
4548 }
4549
eea6121a 4550 if (htab->splt != NULL && htab->splt->size != 0)
47d89dba
AM
4551 {
4552 /* Set plt entry size. */
83c81bfe 4553 elf_section_data (htab->splt->output_section)
47d89dba
AM
4554 ->this_hdr.sh_entsize = PLT_ENTRY_SIZE;
4555
83c81bfe 4556 if (htab->need_plt_stub)
47d89dba
AM
4557 {
4558 /* Set up the .plt stub. */
83c81bfe 4559 memcpy (htab->splt->contents
eea6121a 4560 + htab->splt->size - sizeof (plt_stub),
47d89dba
AM
4561 plt_stub, sizeof (plt_stub));
4562
83c81bfe
AM
4563 if ((htab->splt->output_offset
4564 + htab->splt->output_section->vma
eea6121a 4565 + htab->splt->size)
83c81bfe
AM
4566 != (htab->sgot->output_offset
4567 + htab->sgot->output_section->vma))
47d89dba
AM
4568 {
4569 (*_bfd_error_handler)
4570 (_(".got section not immediately after .plt section"));
b34976b6 4571 return FALSE;
47d89dba
AM
4572 }
4573 }
4574 }
30667bf3 4575
b34976b6 4576 return TRUE;
30667bf3 4577}
252b5132 4578
30667bf3
AM
4579/* Called when writing out an object file to decide the type of a
4580 symbol. */
4581static int
c39a58e6 4582elf32_hppa_elf_get_symbol_type (Elf_Internal_Sym *elf_sym, int type)
30667bf3
AM
4583{
4584 if (ELF_ST_TYPE (elf_sym->st_info) == STT_PARISC_MILLI)
4585 return STT_PARISC_MILLI;
4586 else
4587 return type;
252b5132
RH
4588}
4589
4590/* Misc BFD support code. */
30667bf3
AM
4591#define bfd_elf32_bfd_is_local_label_name elf_hppa_is_local_label_name
4592#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
0c8d6e5c 4593#define bfd_elf32_bfd_reloc_name_lookup elf_hppa_reloc_name_lookup
30667bf3
AM
4594#define elf_info_to_howto elf_hppa_info_to_howto
4595#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
252b5132 4596
252b5132 4597/* Stuff for the BFD linker. */
0c8d6e5c 4598#define bfd_elf32_mkobject elf32_hppa_mkobject
c46b7515 4599#define bfd_elf32_bfd_final_link elf32_hppa_final_link
30667bf3 4600#define bfd_elf32_bfd_link_hash_table_create elf32_hppa_link_hash_table_create
e2d34d7d 4601#define bfd_elf32_bfd_link_hash_table_free elf32_hppa_link_hash_table_free
30667bf3 4602#define elf_backend_adjust_dynamic_symbol elf32_hppa_adjust_dynamic_symbol
ebe50bae 4603#define elf_backend_copy_indirect_symbol elf32_hppa_copy_indirect_symbol
30667bf3
AM
4604#define elf_backend_check_relocs elf32_hppa_check_relocs
4605#define elf_backend_create_dynamic_sections elf32_hppa_create_dynamic_sections
4606#define elf_backend_fake_sections elf_hppa_fake_sections
4607#define elf_backend_relocate_section elf32_hppa_relocate_section
74d1c347 4608#define elf_backend_hide_symbol elf32_hppa_hide_symbol
30667bf3
AM
4609#define elf_backend_finish_dynamic_symbol elf32_hppa_finish_dynamic_symbol
4610#define elf_backend_finish_dynamic_sections elf32_hppa_finish_dynamic_sections
4611#define elf_backend_size_dynamic_sections elf32_hppa_size_dynamic_sections
74541ad4 4612#define elf_backend_init_index_section _bfd_elf_init_1_index_section
30667bf3
AM
4613#define elf_backend_gc_mark_hook elf32_hppa_gc_mark_hook
4614#define elf_backend_gc_sweep_hook elf32_hppa_gc_sweep_hook
edfc032f
AM
4615#define elf_backend_grok_prstatus elf32_hppa_grok_prstatus
4616#define elf_backend_grok_psinfo elf32_hppa_grok_psinfo
30667bf3
AM
4617#define elf_backend_object_p elf32_hppa_object_p
4618#define elf_backend_final_write_processing elf_hppa_final_write_processing
d1036acb 4619#define elf_backend_post_process_headers _bfd_elf_set_osabi
30667bf3 4620#define elf_backend_get_symbol_type elf32_hppa_elf_get_symbol_type
98ceb8ce 4621#define elf_backend_reloc_type_class elf32_hppa_reloc_type_class
8a696751 4622#define elf_backend_action_discarded elf_hppa_action_discarded
30667bf3
AM
4623
4624#define elf_backend_can_gc_sections 1
51b64d56 4625#define elf_backend_can_refcount 1
30667bf3
AM
4626#define elf_backend_plt_alignment 2
4627#define elf_backend_want_got_plt 0
4628#define elf_backend_plt_readonly 0
4629#define elf_backend_want_plt_sym 0
74d1c347 4630#define elf_backend_got_header_size 8
f0fe0e16 4631#define elf_backend_rela_normal 1
252b5132
RH
4632
4633#define TARGET_BIG_SYM bfd_elf32_hppa_vec
4634#define TARGET_BIG_NAME "elf32-hppa"
4635#define ELF_ARCH bfd_arch_hppa
4636#define ELF_MACHINE_CODE EM_PARISC
4637#define ELF_MAXPAGESIZE 0x1000
d1036acb 4638#define ELF_OSABI ELFOSABI_HPUX
914dfb0f 4639#define elf32_bed elf32_hppa_hpux_bed
252b5132
RH
4640
4641#include "elf32-target.h"
d952f17a
AM
4642
4643#undef TARGET_BIG_SYM
914dfb0f 4644#define TARGET_BIG_SYM bfd_elf32_hppa_linux_vec
d952f17a 4645#undef TARGET_BIG_NAME
914dfb0f 4646#define TARGET_BIG_NAME "elf32-hppa-linux"
d1036acb
L
4647#undef ELF_OSABI
4648#define ELF_OSABI ELFOSABI_LINUX
914dfb0f
DA
4649#undef elf32_bed
4650#define elf32_bed elf32_hppa_linux_bed
d952f17a 4651
d952f17a 4652#include "elf32-target.h"
225247f0
JT
4653
4654#undef TARGET_BIG_SYM
914dfb0f 4655#define TARGET_BIG_SYM bfd_elf32_hppa_nbsd_vec
225247f0 4656#undef TARGET_BIG_NAME
914dfb0f 4657#define TARGET_BIG_NAME "elf32-hppa-netbsd"
d1036acb
L
4658#undef ELF_OSABI
4659#define ELF_OSABI ELFOSABI_NETBSD
914dfb0f
DA
4660#undef elf32_bed
4661#define elf32_bed elf32_hppa_netbsd_bed
225247f0
JT
4662
4663#include "elf32-target.h"
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