2008-03-14 H.J. Lu <hongjiu.lu@intel.com>
[deliverable/binutils-gdb.git] / bfd / elfxx-ia64.c
CommitLineData
800eeca4 1/* IA-64 support for 64-bit ELF
ab96bf03 2 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
b2a8e766 3 Free Software Foundation, Inc.
800eeca4
JW
4 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
5
5e8d7549 6 This file is part of BFD, the Binary File Descriptor library.
800eeca4 7
5e8d7549
NC
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
cd123cb7 10 the Free Software Foundation; either version 3 of the License, or
5e8d7549 11 (at your option) any later version.
800eeca4 12
5e8d7549
NC
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
800eeca4 17
5e8d7549
NC
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
cd123cb7
NC
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
800eeca4 22
800eeca4 23#include "sysdep.h"
3db64b00 24#include "bfd.h"
800eeca4
JW
25#include "libbfd.h"
26#include "elf-bfd.h"
27#include "opcode/ia64.h"
28#include "elf/ia64.h"
0aa92b58
JJ
29#include "objalloc.h"
30#include "hashtab.h"
800eeca4 31
5a260b66
L
32#define ARCH_SIZE NN
33
34#if ARCH_SIZE == 64
35#define LOG_SECTION_ALIGN 3
36#endif
37
38#if ARCH_SIZE == 32
39#define LOG_SECTION_ALIGN 2
40#endif
41
5e8d7549 42/* THE RULES for all the stuff the linker creates --
b34976b6 43
5e8d7549
NC
44 GOT Entries created in response to LTOFF or LTOFF_FPTR
45 relocations. Dynamic relocs created for dynamic
46 symbols in an application; REL relocs for locals
47 in a shared library.
b34976b6 48
5e8d7549
NC
49 FPTR The canonical function descriptor. Created for local
50 symbols in applications. Descriptors for dynamic symbols
51 and local symbols in shared libraries are created by
52 ld.so. Thus there are no dynamic relocs against these
53 objects. The FPTR relocs for such _are_ passed through
54 to the dynamic relocation tables.
b34976b6 55
5e8d7549
NC
56 FULL_PLT Created for a PCREL21B relocation against a dynamic symbol.
57 Requires the creation of a PLTOFF entry. This does not
58 require any dynamic relocations.
b34976b6 59
5e8d7549
NC
60 PLTOFF Created by PLTOFF relocations. For local symbols, this
61 is an alternate function descriptor, and in shared libraries
62 requires two REL relocations. Note that this cannot be
63 transformed into an FPTR relocation, since it must be in
64 range of the GP. For dynamic symbols, this is a function
65 descriptor for a MIN_PLT entry, and requires one IPLT reloc.
b34976b6 66
5e8d7549 67 MIN_PLT Created by PLTOFF entries against dynamic symbols. This
4cc11e76 68 does not require dynamic relocations. */
800eeca4 69
800eeca4
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70#define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
71
72typedef struct bfd_hash_entry *(*new_hash_entry_func)
73 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
74
75/* In dynamically (linker-) created sections, we generally need to keep track
76 of the place a symbol or expression got allocated to. This is done via hash
77 tables that store entries of the following type. */
78
bbe66d08 79struct elfNN_ia64_dyn_sym_info
800eeca4
JW
80{
81 /* The addend for which this entry is relevant. */
82 bfd_vma addend;
83
800eeca4
JW
84 bfd_vma got_offset;
85 bfd_vma fptr_offset;
86 bfd_vma pltoff_offset;
87 bfd_vma plt_offset;
88 bfd_vma plt2_offset;
13ae64f3
JJ
89 bfd_vma tprel_offset;
90 bfd_vma dtpmod_offset;
91 bfd_vma dtprel_offset;
800eeca4 92
4cc11e76 93 /* The symbol table entry, if any, that this was derived from. */
800eeca4 94 struct elf_link_hash_entry *h;
3e932841 95
800eeca4
JW
96 /* Used to count non-got, non-plt relocations for delayed sizing
97 of relocation sections. */
bbe66d08 98 struct elfNN_ia64_dyn_reloc_entry
800eeca4 99 {
bbe66d08 100 struct elfNN_ia64_dyn_reloc_entry *next;
800eeca4
JW
101 asection *srel;
102 int type;
103 int count;
ac33696c
L
104
105 /* Is this reloc against readonly section? */
106 bfd_boolean reltext;
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107 } *reloc_entries;
108
b34976b6 109 /* TRUE when the section contents have been updated. */
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110 unsigned got_done : 1;
111 unsigned fptr_done : 1;
112 unsigned pltoff_done : 1;
13ae64f3
JJ
113 unsigned tprel_done : 1;
114 unsigned dtpmod_done : 1;
115 unsigned dtprel_done : 1;
800eeca4 116
b34976b6 117 /* TRUE for the different kinds of linker data we want created. */
800eeca4 118 unsigned want_got : 1;
2c4c2bc0 119 unsigned want_gotx : 1;
800eeca4
JW
120 unsigned want_fptr : 1;
121 unsigned want_ltoff_fptr : 1;
122 unsigned want_plt : 1;
123 unsigned want_plt2 : 1;
124 unsigned want_pltoff : 1;
13ae64f3
JJ
125 unsigned want_tprel : 1;
126 unsigned want_dtpmod : 1;
127 unsigned want_dtprel : 1;
800eeca4
JW
128};
129
bbe66d08 130struct elfNN_ia64_local_hash_entry
800eeca4 131{
0aa92b58
JJ
132 int id;
133 unsigned int r_sym;
396a682d
L
134 /* The number of elements in elfNN_ia64_dyn_sym_info array. */
135 unsigned int count;
136 /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
137 unsigned int sorted_count;
138 /* The size of elfNN_ia64_dyn_sym_info array. */
139 unsigned int size;
140 /* The array of elfNN_ia64_dyn_sym_info. */
bbe66d08 141 struct elfNN_ia64_dyn_sym_info *info;
f7460f5f 142
b34976b6 143 /* TRUE if this hash entry's addends was translated for
f7460f5f
JJ
144 SHF_MERGE optimization. */
145 unsigned sec_merge_done : 1;
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JW
146};
147
bbe66d08 148struct elfNN_ia64_link_hash_entry
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149{
150 struct elf_link_hash_entry root;
396a682d
L
151 /* The number of elements in elfNN_ia64_dyn_sym_info array. */
152 unsigned int count;
153 /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
154 unsigned int sorted_count;
155 /* The size of elfNN_ia64_dyn_sym_info array. */
156 unsigned int size;
157 /* The array of elfNN_ia64_dyn_sym_info. */
bbe66d08 158 struct elfNN_ia64_dyn_sym_info *info;
800eeca4
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159};
160
bbe66d08 161struct elfNN_ia64_link_hash_table
800eeca4 162{
5e8d7549 163 /* The main hash table. */
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164 struct elf_link_hash_table root;
165
166 asection *got_sec; /* the linkage table section (or NULL) */
167 asection *rel_got_sec; /* dynamic relocation section for same */
168 asection *fptr_sec; /* function descriptor table (or NULL) */
9203ba99 169 asection *rel_fptr_sec; /* dynamic relocation section for same */
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170 asection *plt_sec; /* the primary plt section (or NULL) */
171 asection *pltoff_sec; /* private descriptors for plt (or NULL) */
172 asection *rel_pltoff_sec; /* dynamic relocation section for same */
173
174 bfd_size_type minplt_entries; /* number of minplt entries */
db6751f2 175 unsigned reltext : 1; /* are there relocs against readonly sections? */
b3dfd7fe
JJ
176 unsigned self_dtpmod_done : 1;/* has self DTPMOD entry been finished? */
177 bfd_vma self_dtpmod_offset; /* .got offset to self DTPMOD entry */
800eeca4 178
0aa92b58
JJ
179 htab_t loc_hash_table;
180 void *loc_hash_memory;
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JW
181};
182
2c4c2bc0
RH
183struct elfNN_ia64_allocate_data
184{
185 struct bfd_link_info *info;
186 bfd_size_type ofs;
4a78a1f4 187 bfd_boolean only_got;
2c4c2bc0
RH
188};
189
bbe66d08
JW
190#define elfNN_ia64_hash_table(p) \
191 ((struct elfNN_ia64_link_hash_table *) ((p)->hash))
800eeca4 192
eae50df2
L
193static struct elfNN_ia64_dyn_sym_info * get_dyn_sym_info
194 (struct elfNN_ia64_link_hash_table *ia64_info,
195 struct elf_link_hash_entry *h,
196 bfd *abfd, const Elf_Internal_Rela *rel, bfd_boolean create);
b34976b6 197static bfd_boolean elfNN_ia64_dynamic_symbol_p
eae50df2
L
198 (struct elf_link_hash_entry *h, struct bfd_link_info *info, int);
199static bfd_reloc_status_type elfNN_ia64_install_value
200 (bfd_byte *hit_addr, bfd_vma val, unsigned int r_type);
201static bfd_boolean elfNN_ia64_choose_gp
202 (bfd *abfd, struct bfd_link_info *info);
203static void elfNN_ia64_relax_ldxmov
204 (bfd_byte *contents, bfd_vma off);
bbe66d08 205static void elfNN_ia64_dyn_sym_traverse
eae50df2
L
206 (struct elfNN_ia64_link_hash_table *ia64_info,
207 bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, PTR),
208 PTR info);
b34976b6 209static bfd_boolean allocate_global_data_got
eae50df2 210 (struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data);
b34976b6 211static bfd_boolean allocate_global_fptr_got
eae50df2 212 (struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data);
b34976b6 213static bfd_boolean allocate_local_got
eae50df2 214 (struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data);
b34976b6 215static bfd_boolean elfNN_ia64_hpux_vec
eae50df2
L
216 (const bfd_target *vec);
217static bfd_boolean allocate_dynrel_entries
218 (struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data);
219static asection *get_pltoff
220 (bfd *abfd, struct bfd_link_info *info,
221 struct elfNN_ia64_link_hash_table *ia64_info);
800eeca4 222\f
5e8d7549 223/* ia64-specific relocation. */
800eeca4
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224
225/* Perform a relocation. Not much to do here as all the hard work is
bbe66d08 226 done in elfNN_ia64_final_link_relocate. */
800eeca4 227static bfd_reloc_status_type
eae50df2
L
228elfNN_ia64_reloc (bfd *abfd ATTRIBUTE_UNUSED, arelent *reloc,
229 asymbol *sym ATTRIBUTE_UNUSED,
230 PTR data ATTRIBUTE_UNUSED, asection *input_section,
231 bfd *output_bfd, char **error_message)
800eeca4
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232{
233 if (output_bfd)
234 {
235 reloc->address += input_section->output_offset;
236 return bfd_reloc_ok;
237 }
6e84a906
DJ
238
239 if (input_section->flags & SEC_DEBUGGING)
240 return bfd_reloc_continue;
241
bbe66d08 242 *error_message = "Unsupported call to elfNN_ia64_reloc";
800eeca4
JW
243 return bfd_reloc_notsupported;
244}
245
246#define IA64_HOWTO(TYPE, NAME, SIZE, PCREL, IN) \
247 HOWTO (TYPE, 0, SIZE, 0, PCREL, 0, complain_overflow_signed, \
eff26f78 248 elfNN_ia64_reloc, NAME, FALSE, 0, -1, IN)
800eeca4
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249
250/* This table has to be sorted according to increasing number of the
251 TYPE field. */
252static reloc_howto_type ia64_howto_table[] =
253 {
b34976b6
AM
254 IA64_HOWTO (R_IA64_NONE, "NONE", 0, FALSE, TRUE),
255
256 IA64_HOWTO (R_IA64_IMM14, "IMM14", 0, FALSE, TRUE),
257 IA64_HOWTO (R_IA64_IMM22, "IMM22", 0, FALSE, TRUE),
258 IA64_HOWTO (R_IA64_IMM64, "IMM64", 0, FALSE, TRUE),
259 IA64_HOWTO (R_IA64_DIR32MSB, "DIR32MSB", 2, FALSE, TRUE),
260 IA64_HOWTO (R_IA64_DIR32LSB, "DIR32LSB", 2, FALSE, TRUE),
261 IA64_HOWTO (R_IA64_DIR64MSB, "DIR64MSB", 4, FALSE, TRUE),
262 IA64_HOWTO (R_IA64_DIR64LSB, "DIR64LSB", 4, FALSE, TRUE),
263
264 IA64_HOWTO (R_IA64_GPREL22, "GPREL22", 0, FALSE, TRUE),
265 IA64_HOWTO (R_IA64_GPREL64I, "GPREL64I", 0, FALSE, TRUE),
266 IA64_HOWTO (R_IA64_GPREL32MSB, "GPREL32MSB", 2, FALSE, TRUE),
267 IA64_HOWTO (R_IA64_GPREL32LSB, "GPREL32LSB", 2, FALSE, TRUE),
268 IA64_HOWTO (R_IA64_GPREL64MSB, "GPREL64MSB", 4, FALSE, TRUE),
269 IA64_HOWTO (R_IA64_GPREL64LSB, "GPREL64LSB", 4, FALSE, TRUE),
270
271 IA64_HOWTO (R_IA64_LTOFF22, "LTOFF22", 0, FALSE, TRUE),
272 IA64_HOWTO (R_IA64_LTOFF64I, "LTOFF64I", 0, FALSE, TRUE),
273
274 IA64_HOWTO (R_IA64_PLTOFF22, "PLTOFF22", 0, FALSE, TRUE),
275 IA64_HOWTO (R_IA64_PLTOFF64I, "PLTOFF64I", 0, FALSE, TRUE),
276 IA64_HOWTO (R_IA64_PLTOFF64MSB, "PLTOFF64MSB", 4, FALSE, TRUE),
277 IA64_HOWTO (R_IA64_PLTOFF64LSB, "PLTOFF64LSB", 4, FALSE, TRUE),
278
279 IA64_HOWTO (R_IA64_FPTR64I, "FPTR64I", 0, FALSE, TRUE),
280 IA64_HOWTO (R_IA64_FPTR32MSB, "FPTR32MSB", 2, FALSE, TRUE),
281 IA64_HOWTO (R_IA64_FPTR32LSB, "FPTR32LSB", 2, FALSE, TRUE),
282 IA64_HOWTO (R_IA64_FPTR64MSB, "FPTR64MSB", 4, FALSE, TRUE),
283 IA64_HOWTO (R_IA64_FPTR64LSB, "FPTR64LSB", 4, FALSE, TRUE),
284
285 IA64_HOWTO (R_IA64_PCREL60B, "PCREL60B", 0, TRUE, TRUE),
286 IA64_HOWTO (R_IA64_PCREL21B, "PCREL21B", 0, TRUE, TRUE),
287 IA64_HOWTO (R_IA64_PCREL21M, "PCREL21M", 0, TRUE, TRUE),
288 IA64_HOWTO (R_IA64_PCREL21F, "PCREL21F", 0, TRUE, TRUE),
289 IA64_HOWTO (R_IA64_PCREL32MSB, "PCREL32MSB", 2, TRUE, TRUE),
290 IA64_HOWTO (R_IA64_PCREL32LSB, "PCREL32LSB", 2, TRUE, TRUE),
291 IA64_HOWTO (R_IA64_PCREL64MSB, "PCREL64MSB", 4, TRUE, TRUE),
292 IA64_HOWTO (R_IA64_PCREL64LSB, "PCREL64LSB", 4, TRUE, TRUE),
293
294 IA64_HOWTO (R_IA64_LTOFF_FPTR22, "LTOFF_FPTR22", 0, FALSE, TRUE),
295 IA64_HOWTO (R_IA64_LTOFF_FPTR64I, "LTOFF_FPTR64I", 0, FALSE, TRUE),
296 IA64_HOWTO (R_IA64_LTOFF_FPTR32MSB, "LTOFF_FPTR32MSB", 2, FALSE, TRUE),
297 IA64_HOWTO (R_IA64_LTOFF_FPTR32LSB, "LTOFF_FPTR32LSB", 2, FALSE, TRUE),
298 IA64_HOWTO (R_IA64_LTOFF_FPTR64MSB, "LTOFF_FPTR64MSB", 4, FALSE, TRUE),
299 IA64_HOWTO (R_IA64_LTOFF_FPTR64LSB, "LTOFF_FPTR64LSB", 4, FALSE, TRUE),
300
301 IA64_HOWTO (R_IA64_SEGREL32MSB, "SEGREL32MSB", 2, FALSE, TRUE),
302 IA64_HOWTO (R_IA64_SEGREL32LSB, "SEGREL32LSB", 2, FALSE, TRUE),
303 IA64_HOWTO (R_IA64_SEGREL64MSB, "SEGREL64MSB", 4, FALSE, TRUE),
304 IA64_HOWTO (R_IA64_SEGREL64LSB, "SEGREL64LSB", 4, FALSE, TRUE),
305
306 IA64_HOWTO (R_IA64_SECREL32MSB, "SECREL32MSB", 2, FALSE, TRUE),
307 IA64_HOWTO (R_IA64_SECREL32LSB, "SECREL32LSB", 2, FALSE, TRUE),
308 IA64_HOWTO (R_IA64_SECREL64MSB, "SECREL64MSB", 4, FALSE, TRUE),
309 IA64_HOWTO (R_IA64_SECREL64LSB, "SECREL64LSB", 4, FALSE, TRUE),
310
311 IA64_HOWTO (R_IA64_REL32MSB, "REL32MSB", 2, FALSE, TRUE),
312 IA64_HOWTO (R_IA64_REL32LSB, "REL32LSB", 2, FALSE, TRUE),
313 IA64_HOWTO (R_IA64_REL64MSB, "REL64MSB", 4, FALSE, TRUE),
314 IA64_HOWTO (R_IA64_REL64LSB, "REL64LSB", 4, FALSE, TRUE),
315
316 IA64_HOWTO (R_IA64_LTV32MSB, "LTV32MSB", 2, FALSE, TRUE),
317 IA64_HOWTO (R_IA64_LTV32LSB, "LTV32LSB", 2, FALSE, TRUE),
318 IA64_HOWTO (R_IA64_LTV64MSB, "LTV64MSB", 4, FALSE, TRUE),
319 IA64_HOWTO (R_IA64_LTV64LSB, "LTV64LSB", 4, FALSE, TRUE),
320
321 IA64_HOWTO (R_IA64_PCREL21BI, "PCREL21BI", 0, TRUE, TRUE),
322 IA64_HOWTO (R_IA64_PCREL22, "PCREL22", 0, TRUE, TRUE),
323 IA64_HOWTO (R_IA64_PCREL64I, "PCREL64I", 0, TRUE, TRUE),
324
325 IA64_HOWTO (R_IA64_IPLTMSB, "IPLTMSB", 4, FALSE, TRUE),
326 IA64_HOWTO (R_IA64_IPLTLSB, "IPLTLSB", 4, FALSE, TRUE),
327 IA64_HOWTO (R_IA64_COPY, "COPY", 4, FALSE, TRUE),
328 IA64_HOWTO (R_IA64_LTOFF22X, "LTOFF22X", 0, FALSE, TRUE),
329 IA64_HOWTO (R_IA64_LDXMOV, "LDXMOV", 0, FALSE, TRUE),
330
331 IA64_HOWTO (R_IA64_TPREL14, "TPREL14", 0, FALSE, FALSE),
332 IA64_HOWTO (R_IA64_TPREL22, "TPREL22", 0, FALSE, FALSE),
333 IA64_HOWTO (R_IA64_TPREL64I, "TPREL64I", 0, FALSE, FALSE),
1fc0d173
JJ
334 IA64_HOWTO (R_IA64_TPREL64MSB, "TPREL64MSB", 4, FALSE, FALSE),
335 IA64_HOWTO (R_IA64_TPREL64LSB, "TPREL64LSB", 4, FALSE, FALSE),
b34976b6
AM
336 IA64_HOWTO (R_IA64_LTOFF_TPREL22, "LTOFF_TPREL22", 0, FALSE, FALSE),
337
0ca3e455
JB
338 IA64_HOWTO (R_IA64_DTPMOD64MSB, "DTPMOD64MSB", 4, FALSE, FALSE),
339 IA64_HOWTO (R_IA64_DTPMOD64LSB, "DTPMOD64LSB", 4, FALSE, FALSE),
b34976b6
AM
340 IA64_HOWTO (R_IA64_LTOFF_DTPMOD22, "LTOFF_DTPMOD22", 0, FALSE, FALSE),
341
342 IA64_HOWTO (R_IA64_DTPREL14, "DTPREL14", 0, FALSE, FALSE),
343 IA64_HOWTO (R_IA64_DTPREL22, "DTPREL22", 0, FALSE, FALSE),
344 IA64_HOWTO (R_IA64_DTPREL64I, "DTPREL64I", 0, FALSE, FALSE),
1fc0d173
JJ
345 IA64_HOWTO (R_IA64_DTPREL32MSB, "DTPREL32MSB", 2, FALSE, FALSE),
346 IA64_HOWTO (R_IA64_DTPREL32LSB, "DTPREL32LSB", 2, FALSE, FALSE),
347 IA64_HOWTO (R_IA64_DTPREL64MSB, "DTPREL64MSB", 4, FALSE, FALSE),
348 IA64_HOWTO (R_IA64_DTPREL64LSB, "DTPREL64LSB", 4, FALSE, FALSE),
b34976b6 349 IA64_HOWTO (R_IA64_LTOFF_DTPREL22, "LTOFF_DTPREL22", 0, FALSE, FALSE),
800eeca4
JW
350 };
351
352static unsigned char elf_code_to_howto_index[R_IA64_MAX_RELOC_CODE + 1];
353
354/* Given a BFD reloc type, return the matching HOWTO structure. */
355
5e8d7549 356static reloc_howto_type *
eae50df2 357lookup_howto (unsigned int rtype)
800eeca4
JW
358{
359 static int inited = 0;
360 int i;
361
362 if (!inited)
363 {
364 inited = 1;
365
366 memset (elf_code_to_howto_index, 0xff, sizeof (elf_code_to_howto_index));
367 for (i = 0; i < NELEMS (ia64_howto_table); ++i)
368 elf_code_to_howto_index[ia64_howto_table[i].type] = i;
369 }
370
d0fb9a8d
JJ
371 if (rtype > R_IA64_MAX_RELOC_CODE)
372 return 0;
800eeca4
JW
373 i = elf_code_to_howto_index[rtype];
374 if (i >= NELEMS (ia64_howto_table))
375 return 0;
376 return ia64_howto_table + i;
377}
378
379static reloc_howto_type*
eae50df2
L
380elfNN_ia64_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
381 bfd_reloc_code_real_type bfd_code)
800eeca4
JW
382{
383 unsigned int rtype;
384
385 switch (bfd_code)
386 {
387 case BFD_RELOC_NONE: rtype = R_IA64_NONE; break;
388
389 case BFD_RELOC_IA64_IMM14: rtype = R_IA64_IMM14; break;
390 case BFD_RELOC_IA64_IMM22: rtype = R_IA64_IMM22; break;
391 case BFD_RELOC_IA64_IMM64: rtype = R_IA64_IMM64; break;
392
393 case BFD_RELOC_IA64_DIR32MSB: rtype = R_IA64_DIR32MSB; break;
394 case BFD_RELOC_IA64_DIR32LSB: rtype = R_IA64_DIR32LSB; break;
395 case BFD_RELOC_IA64_DIR64MSB: rtype = R_IA64_DIR64MSB; break;
396 case BFD_RELOC_IA64_DIR64LSB: rtype = R_IA64_DIR64LSB; break;
397
398 case BFD_RELOC_IA64_GPREL22: rtype = R_IA64_GPREL22; break;
399 case BFD_RELOC_IA64_GPREL64I: rtype = R_IA64_GPREL64I; break;
400 case BFD_RELOC_IA64_GPREL32MSB: rtype = R_IA64_GPREL32MSB; break;
401 case BFD_RELOC_IA64_GPREL32LSB: rtype = R_IA64_GPREL32LSB; break;
402 case BFD_RELOC_IA64_GPREL64MSB: rtype = R_IA64_GPREL64MSB; break;
403 case BFD_RELOC_IA64_GPREL64LSB: rtype = R_IA64_GPREL64LSB; break;
404
405 case BFD_RELOC_IA64_LTOFF22: rtype = R_IA64_LTOFF22; break;
406 case BFD_RELOC_IA64_LTOFF64I: rtype = R_IA64_LTOFF64I; break;
407
408 case BFD_RELOC_IA64_PLTOFF22: rtype = R_IA64_PLTOFF22; break;
409 case BFD_RELOC_IA64_PLTOFF64I: rtype = R_IA64_PLTOFF64I; break;
410 case BFD_RELOC_IA64_PLTOFF64MSB: rtype = R_IA64_PLTOFF64MSB; break;
411 case BFD_RELOC_IA64_PLTOFF64LSB: rtype = R_IA64_PLTOFF64LSB; break;
412 case BFD_RELOC_IA64_FPTR64I: rtype = R_IA64_FPTR64I; break;
413 case BFD_RELOC_IA64_FPTR32MSB: rtype = R_IA64_FPTR32MSB; break;
414 case BFD_RELOC_IA64_FPTR32LSB: rtype = R_IA64_FPTR32LSB; break;
415 case BFD_RELOC_IA64_FPTR64MSB: rtype = R_IA64_FPTR64MSB; break;
416 case BFD_RELOC_IA64_FPTR64LSB: rtype = R_IA64_FPTR64LSB; break;
417
418 case BFD_RELOC_IA64_PCREL21B: rtype = R_IA64_PCREL21B; break;
748abff6 419 case BFD_RELOC_IA64_PCREL21BI: rtype = R_IA64_PCREL21BI; break;
800eeca4
JW
420 case BFD_RELOC_IA64_PCREL21M: rtype = R_IA64_PCREL21M; break;
421 case BFD_RELOC_IA64_PCREL21F: rtype = R_IA64_PCREL21F; break;
748abff6
RH
422 case BFD_RELOC_IA64_PCREL22: rtype = R_IA64_PCREL22; break;
423 case BFD_RELOC_IA64_PCREL60B: rtype = R_IA64_PCREL60B; break;
424 case BFD_RELOC_IA64_PCREL64I: rtype = R_IA64_PCREL64I; break;
800eeca4
JW
425 case BFD_RELOC_IA64_PCREL32MSB: rtype = R_IA64_PCREL32MSB; break;
426 case BFD_RELOC_IA64_PCREL32LSB: rtype = R_IA64_PCREL32LSB; break;
427 case BFD_RELOC_IA64_PCREL64MSB: rtype = R_IA64_PCREL64MSB; break;
428 case BFD_RELOC_IA64_PCREL64LSB: rtype = R_IA64_PCREL64LSB; break;
429
430 case BFD_RELOC_IA64_LTOFF_FPTR22: rtype = R_IA64_LTOFF_FPTR22; break;
431 case BFD_RELOC_IA64_LTOFF_FPTR64I: rtype = R_IA64_LTOFF_FPTR64I; break;
a4bd8390
JW
432 case BFD_RELOC_IA64_LTOFF_FPTR32MSB: rtype = R_IA64_LTOFF_FPTR32MSB; break;
433 case BFD_RELOC_IA64_LTOFF_FPTR32LSB: rtype = R_IA64_LTOFF_FPTR32LSB; break;
800eeca4
JW
434 case BFD_RELOC_IA64_LTOFF_FPTR64MSB: rtype = R_IA64_LTOFF_FPTR64MSB; break;
435 case BFD_RELOC_IA64_LTOFF_FPTR64LSB: rtype = R_IA64_LTOFF_FPTR64LSB; break;
436
800eeca4
JW
437 case BFD_RELOC_IA64_SEGREL32MSB: rtype = R_IA64_SEGREL32MSB; break;
438 case BFD_RELOC_IA64_SEGREL32LSB: rtype = R_IA64_SEGREL32LSB; break;
439 case BFD_RELOC_IA64_SEGREL64MSB: rtype = R_IA64_SEGREL64MSB; break;
440 case BFD_RELOC_IA64_SEGREL64LSB: rtype = R_IA64_SEGREL64LSB; break;
441
442 case BFD_RELOC_IA64_SECREL32MSB: rtype = R_IA64_SECREL32MSB; break;
443 case BFD_RELOC_IA64_SECREL32LSB: rtype = R_IA64_SECREL32LSB; break;
444 case BFD_RELOC_IA64_SECREL64MSB: rtype = R_IA64_SECREL64MSB; break;
445 case BFD_RELOC_IA64_SECREL64LSB: rtype = R_IA64_SECREL64LSB; break;
446
447 case BFD_RELOC_IA64_REL32MSB: rtype = R_IA64_REL32MSB; break;
448 case BFD_RELOC_IA64_REL32LSB: rtype = R_IA64_REL32LSB; break;
449 case BFD_RELOC_IA64_REL64MSB: rtype = R_IA64_REL64MSB; break;
450 case BFD_RELOC_IA64_REL64LSB: rtype = R_IA64_REL64LSB; break;
451
452 case BFD_RELOC_IA64_LTV32MSB: rtype = R_IA64_LTV32MSB; break;
453 case BFD_RELOC_IA64_LTV32LSB: rtype = R_IA64_LTV32LSB; break;
454 case BFD_RELOC_IA64_LTV64MSB: rtype = R_IA64_LTV64MSB; break;
455 case BFD_RELOC_IA64_LTV64LSB: rtype = R_IA64_LTV64LSB; break;
456
457 case BFD_RELOC_IA64_IPLTMSB: rtype = R_IA64_IPLTMSB; break;
458 case BFD_RELOC_IA64_IPLTLSB: rtype = R_IA64_IPLTLSB; break;
800eeca4
JW
459 case BFD_RELOC_IA64_COPY: rtype = R_IA64_COPY; break;
460 case BFD_RELOC_IA64_LTOFF22X: rtype = R_IA64_LTOFF22X; break;
461 case BFD_RELOC_IA64_LDXMOV: rtype = R_IA64_LDXMOV; break;
462
13ae64f3 463 case BFD_RELOC_IA64_TPREL14: rtype = R_IA64_TPREL14; break;
800eeca4 464 case BFD_RELOC_IA64_TPREL22: rtype = R_IA64_TPREL22; break;
13ae64f3 465 case BFD_RELOC_IA64_TPREL64I: rtype = R_IA64_TPREL64I; break;
800eeca4
JW
466 case BFD_RELOC_IA64_TPREL64MSB: rtype = R_IA64_TPREL64MSB; break;
467 case BFD_RELOC_IA64_TPREL64LSB: rtype = R_IA64_TPREL64LSB; break;
13ae64f3
JJ
468 case BFD_RELOC_IA64_LTOFF_TPREL22: rtype = R_IA64_LTOFF_TPREL22; break;
469
470 case BFD_RELOC_IA64_DTPMOD64MSB: rtype = R_IA64_DTPMOD64MSB; break;
471 case BFD_RELOC_IA64_DTPMOD64LSB: rtype = R_IA64_DTPMOD64LSB; break;
472 case BFD_RELOC_IA64_LTOFF_DTPMOD22: rtype = R_IA64_LTOFF_DTPMOD22; break;
473
474 case BFD_RELOC_IA64_DTPREL14: rtype = R_IA64_DTPREL14; break;
475 case BFD_RELOC_IA64_DTPREL22: rtype = R_IA64_DTPREL22; break;
476 case BFD_RELOC_IA64_DTPREL64I: rtype = R_IA64_DTPREL64I; break;
477 case BFD_RELOC_IA64_DTPREL32MSB: rtype = R_IA64_DTPREL32MSB; break;
478 case BFD_RELOC_IA64_DTPREL32LSB: rtype = R_IA64_DTPREL32LSB; break;
479 case BFD_RELOC_IA64_DTPREL64MSB: rtype = R_IA64_DTPREL64MSB; break;
480 case BFD_RELOC_IA64_DTPREL64LSB: rtype = R_IA64_DTPREL64LSB; break;
481 case BFD_RELOC_IA64_LTOFF_DTPREL22: rtype = R_IA64_LTOFF_DTPREL22; break;
800eeca4
JW
482
483 default: return 0;
484 }
485 return lookup_howto (rtype);
486}
487
157090f7
AM
488static reloc_howto_type *
489elfNN_ia64_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
490 const char *r_name)
491{
492 unsigned int i;
493
494 for (i = 0;
495 i < sizeof (ia64_howto_table) / sizeof (ia64_howto_table[0]);
496 i++)
497 if (ia64_howto_table[i].name != NULL
498 && strcasecmp (ia64_howto_table[i].name, r_name) == 0)
499 return &ia64_howto_table[i];
500
501 return NULL;
502}
503
800eeca4
JW
504/* Given a ELF reloc, return the matching HOWTO structure. */
505
506static void
eae50df2
L
507elfNN_ia64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
508 arelent *bfd_reloc,
509 Elf_Internal_Rela *elf_reloc)
800eeca4 510{
dc810e39
AM
511 bfd_reloc->howto
512 = lookup_howto ((unsigned int) ELFNN_R_TYPE (elf_reloc->r_info));
800eeca4
JW
513}
514\f
515#define PLT_HEADER_SIZE (3 * 16)
516#define PLT_MIN_ENTRY_SIZE (1 * 16)
517#define PLT_FULL_ENTRY_SIZE (2 * 16)
518#define PLT_RESERVED_WORDS 3
519
520static const bfd_byte plt_header[PLT_HEADER_SIZE] =
521{
522 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
523 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
524 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
525 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
526 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
527 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
528 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
529 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
530 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
531};
532
533static const bfd_byte plt_min_entry[PLT_MIN_ENTRY_SIZE] =
534{
535 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
536 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
537 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
538};
539
540static const bfd_byte plt_full_entry[PLT_FULL_ENTRY_SIZE] =
541{
542 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
8b6f2683 543 0x00, 0x41, 0x3c, 0x70, 0x29, 0xc0, /* ld8.acq r16=[r15],8*/
800eeca4
JW
544 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
545 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
546 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
547 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
548};
549
550#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
748abff6 551
748abff6
RH
552static const bfd_byte oor_brl[16] =
553{
554 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
555 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
556 0x00, 0x00, 0x00, 0xc0
557};
3f7deb8a
L
558
559static const bfd_byte oor_ip[48] =
560{
561 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
562 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
563 0x01, 0x00, 0x00, 0x60,
564 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
565 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
566 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
567 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
568 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
569 0x60, 0x00, 0x80, 0x00 /* br b6;; */
570};
571
572static size_t oor_branch_size = sizeof (oor_brl);
573
574void
575bfd_elfNN_ia64_after_parse (int itanium)
576{
577 oor_branch_size = itanium ? sizeof (oor_ip) : sizeof (oor_brl);
578}
579
83b6bd86
L
580#define BTYPE_SHIFT 6
581#define Y_SHIFT 26
582#define X6_SHIFT 27
583#define X4_SHIFT 27
584#define X3_SHIFT 33
585#define X2_SHIFT 31
586#define X_SHIFT 33
587#define OPCODE_SHIFT 37
588
589#define OPCODE_BITS (0xfLL << OPCODE_SHIFT)
590#define X6_BITS (0x3fLL << X6_SHIFT)
591#define X4_BITS (0xfLL << X4_SHIFT)
592#define X3_BITS (0x7LL << X3_SHIFT)
593#define X2_BITS (0x3LL << X2_SHIFT)
594#define X_BITS (0x1LL << X_SHIFT)
595#define Y_BITS (0x1LL << Y_SHIFT)
596#define BTYPE_BITS (0x7LL << BTYPE_SHIFT)
597#define PREDICATE_BITS (0x3fLL)
598
599#define IS_NOP_B(i) \
600 (((i) & (OPCODE_BITS | X6_BITS)) == (2LL << OPCODE_SHIFT))
601#define IS_NOP_F(i) \
602 (((i) & (OPCODE_BITS | X_BITS | X6_BITS | Y_BITS)) \
603 == (0x1LL << X6_SHIFT))
604#define IS_NOP_I(i) \
605 (((i) & (OPCODE_BITS | X3_BITS | X6_BITS | Y_BITS)) \
606 == (0x1LL << X6_SHIFT))
607#define IS_NOP_M(i) \
608 (((i) & (OPCODE_BITS | X3_BITS | X2_BITS | X4_BITS | Y_BITS)) \
609 == (0x1LL << X4_SHIFT))
610#define IS_BR_COND(i) \
611 (((i) & (OPCODE_BITS | BTYPE_BITS)) == (0x4LL << OPCODE_SHIFT))
612#define IS_BR_CALL(i) \
613 (((i) & OPCODE_BITS) == (0x5LL << OPCODE_SHIFT))
614
615static bfd_boolean
616elfNN_ia64_relax_br (bfd_byte *contents, bfd_vma off)
617{
618 unsigned int template, mlx;
619 bfd_vma t0, t1, s0, s1, s2, br_code;
620 long br_slot;
621 bfd_byte *hit_addr;
622
623 hit_addr = (bfd_byte *) (contents + off);
624 br_slot = (long) hit_addr & 0x3;
625 hit_addr -= br_slot;
626 t0 = bfd_getl64 (hit_addr + 0);
627 t1 = bfd_getl64 (hit_addr + 8);
628
629 /* Check if we can turn br into brl. A label is always at the start
630 of the bundle. Even if there are predicates on NOPs, we still
631 perform this optimization. */
632 template = t0 & 0x1e;
633 s0 = (t0 >> 5) & 0x1ffffffffffLL;
634 s1 = ((t0 >> 46) | (t1 << 18)) & 0x1ffffffffffLL;
635 s2 = (t1 >> 23) & 0x1ffffffffffLL;
636 switch (br_slot)
637 {
638 case 0:
639 /* Check if slot 1 and slot 2 are NOPs. Possible template is
640 BBB. We only need to check nop.b. */
641 if (!(IS_NOP_B (s1) && IS_NOP_B (s2)))
642 return FALSE;
643 br_code = s0;
644 break;
645 case 1:
646 /* Check if slot 2 is NOP. Possible templates are MBB and BBB.
647 For BBB, slot 0 also has to be nop.b. */
648 if (!((template == 0x12 /* MBB */
649 && IS_NOP_B (s2))
650 || (template == 0x16 /* BBB */
651 && IS_NOP_B (s0)
652 && IS_NOP_B (s2))))
653 return FALSE;
654 br_code = s1;
655 break;
656 case 2:
657 /* Check if slot 1 is NOP. Possible templates are MIB, MBB, BBB,
658 MMB and MFB. For BBB, slot 0 also has to be nop.b. */
659 if (!((template == 0x10 /* MIB */
660 && IS_NOP_I (s1))
661 || (template == 0x12 /* MBB */
662 && IS_NOP_B (s1))
663 || (template == 0x16 /* BBB */
664 && IS_NOP_B (s0)
665 && IS_NOP_B (s1))
666 || (template == 0x18 /* MMB */
667 && IS_NOP_M (s1))
668 || (template == 0x1c /* MFB */
669 && IS_NOP_F (s1))))
670 return FALSE;
671 br_code = s2;
672 break;
673 default:
674 /* It should never happen. */
675 abort ();
676 }
9a2e389a 677
83b6bd86
L
678 /* We can turn br.cond/br.call into brl.cond/brl.call. */
679 if (!(IS_BR_COND (br_code) || IS_BR_CALL (br_code)))
680 return FALSE;
681
682 /* Turn br into brl by setting bit 40. */
683 br_code |= 0x1LL << 40;
684
685 /* Turn the old bundle into a MLX bundle with the same stop-bit
686 variety. */
687 if (t0 & 0x1)
688 mlx = 0x5;
689 else
690 mlx = 0x4;
691
692 if (template == 0x16)
693 {
5e27d427
L
694 /* For BBB, we need to put nop.m in slot 0. We keep the original
695 predicate only if slot 0 isn't br. */
696 if (br_slot == 0)
697 t0 = 0LL;
698 else
699 t0 &= PREDICATE_BITS << 5;
83b6bd86
L
700 t0 |= 0x1LL << (X4_SHIFT + 5);
701 }
702 else
703 {
704 /* Keep the original instruction in slot 0. */
705 t0 &= 0x1ffffffffffLL << 5;
706 }
707
708 t0 |= mlx;
709
710 /* Put brl in slot 1. */
711 t1 = br_code << 23;
712
713 bfd_putl64 (t0, hit_addr);
714 bfd_putl64 (t1, hit_addr + 8);
715 return TRUE;
716}
717
03609792 718static void
bbb268c3 719elfNN_ia64_relax_brl (bfd_byte *contents, bfd_vma off)
03609792 720{
fc3ab699 721 int template;
03609792 722 bfd_byte *hit_addr;
fc3ab699 723 bfd_vma t0, t1, i0, i1, i2;
03609792
L
724
725 hit_addr = (bfd_byte *) (contents + off);
726 hit_addr -= (long) hit_addr & 0x3;
fc3ab699
L
727 t0 = bfd_getl64 (hit_addr);
728 t1 = bfd_getl64 (hit_addr + 8);
03609792 729
7e3102a7 730 /* Keep the instruction in slot 0. */
fc3ab699
L
731 i0 = (t0 >> 5) & 0x1ffffffffffLL;
732 /* Use nop.b for slot 1. */
733 i1 = 0x4000000000LL;
7e3102a7 734 /* For slot 2, turn brl into br by masking out bit 40. */
fc3ab699 735 i2 = (t1 >> 23) & 0x0ffffffffffLL;
7e3102a7 736
fc3ab699
L
737 /* Turn a MLX bundle into a MBB bundle with the same stop-bit
738 variety. */
739 if (t0 & 0x1)
740 template = 0x13;
741 else
742 template = 0x12;
743 t0 = (i1 << 46) | (i0 << 5) | template;
744 t1 = (i2 << 23) | (i1 >> 18);
7e3102a7 745
fc3ab699
L
746 bfd_putl64 (t0, hit_addr);
747 bfd_putl64 (t1, hit_addr + 8);
03609792 748}
fbbc3759
L
749
750/* Rename some of the generic section flags to better document how they
751 are used here. */
752#define skip_relax_pass_0 need_finalize_relax
753#define skip_relax_pass_1 has_gp_reloc
754
748abff6 755\f
2c4c2bc0 756/* These functions do relaxation for IA-64 ELF. */
748abff6 757
b34976b6 758static bfd_boolean
eae50df2
L
759elfNN_ia64_relax_section (bfd *abfd, asection *sec,
760 struct bfd_link_info *link_info,
761 bfd_boolean *again)
748abff6
RH
762{
763 struct one_fixup
764 {
765 struct one_fixup *next;
766 asection *tsec;
767 bfd_vma toff;
768 bfd_vma trampoff;
769 };
770
771 Elf_Internal_Shdr *symtab_hdr;
772 Elf_Internal_Rela *internal_relocs;
748abff6
RH
773 Elf_Internal_Rela *irel, *irelend;
774 bfd_byte *contents;
6cdc0ccc 775 Elf_Internal_Sym *isymbuf = NULL;
bbe66d08 776 struct elfNN_ia64_link_hash_table *ia64_info;
748abff6 777 struct one_fixup *fixups = NULL;
b34976b6
AM
778 bfd_boolean changed_contents = FALSE;
779 bfd_boolean changed_relocs = FALSE;
2c4c2bc0 780 bfd_boolean changed_got = FALSE;
fbbc3759
L
781 bfd_boolean skip_relax_pass_0 = TRUE;
782 bfd_boolean skip_relax_pass_1 = TRUE;
2c4c2bc0 783 bfd_vma gp = 0;
748abff6 784
46f5aac8
KH
785 /* Assume we're not going to change any sizes, and we'll only need
786 one pass. */
b34976b6 787 *again = FALSE;
748abff6 788
04b3329b 789 /* Don't even try to relax for non-ELF outputs. */
0eddce27 790 if (!is_elf_hash_table (link_info->hash))
04b3329b
L
791 return FALSE;
792
c7996ad6 793 /* Nothing to do if there are no relocations or there is no need for
fbbc3759 794 the current pass. */
748abff6 795 if ((sec->flags & SEC_RELOC) == 0
c7996ad6 796 || sec->reloc_count == 0
fbbc3759
L
797 || (link_info->relax_pass == 0 && sec->skip_relax_pass_0)
798 || (link_info->relax_pass == 1 && sec->skip_relax_pass_1))
b34976b6 799 return TRUE;
748abff6 800
748abff6
RH
801 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
802
803 /* Load the relocations for this section. */
45d6a902 804 internal_relocs = (_bfd_elf_link_read_relocs
748abff6
RH
805 (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
806 link_info->keep_memory));
807 if (internal_relocs == NULL)
b34976b6 808 return FALSE;
748abff6 809
bbe66d08 810 ia64_info = elfNN_ia64_hash_table (link_info);
748abff6
RH
811 irelend = internal_relocs + sec->reloc_count;
812
748abff6 813 /* Get the section contents. */
748abff6
RH
814 if (elf_section_data (sec)->this_hdr.contents != NULL)
815 contents = elf_section_data (sec)->this_hdr.contents;
816 else
817 {
eea6121a 818 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
748abff6
RH
819 goto error_return;
820 }
821
2c4c2bc0 822 for (irel = internal_relocs; irel < irelend; irel++)
748abff6 823 {
2f9bd3f6 824 unsigned long r_type = ELFNN_R_TYPE (irel->r_info);
748abff6 825 bfd_vma symaddr, reladdr, trampoff, toff, roff;
748abff6
RH
826 asection *tsec;
827 struct one_fixup *f;
dc810e39 828 bfd_size_type amt;
2c4c2bc0
RH
829 bfd_boolean is_branch;
830 struct elfNN_ia64_dyn_sym_info *dyn_i;
bf8b15af 831 char symtype;
748abff6 832
2c4c2bc0
RH
833 switch (r_type)
834 {
835 case R_IA64_PCREL21B:
836 case R_IA64_PCREL21BI:
837 case R_IA64_PCREL21M:
838 case R_IA64_PCREL21F:
fbbc3759
L
839 /* In pass 1, all br relaxations are done. We can skip it. */
840 if (link_info->relax_pass == 1)
c7996ad6 841 continue;
fbbc3759 842 skip_relax_pass_0 = FALSE;
2c4c2bc0
RH
843 is_branch = TRUE;
844 break;
845
03609792 846 case R_IA64_PCREL60B:
fbbc3759
L
847 /* We can't optimize brl to br in pass 0 since br relaxations
848 will increase the code size. Defer it to pass 1. */
849 if (link_info->relax_pass == 0)
03609792 850 {
fbbc3759 851 skip_relax_pass_1 = FALSE;
03609792
L
852 continue;
853 }
854 is_branch = TRUE;
855 break;
856
2c4c2bc0
RH
857 case R_IA64_LTOFF22X:
858 case R_IA64_LDXMOV:
fbbc3759
L
859 /* We can't relax ldx/mov in pass 0 since br relaxations will
860 increase the code size. Defer it to pass 1. */
861 if (link_info->relax_pass == 0)
c7996ad6 862 {
fbbc3759 863 skip_relax_pass_1 = FALSE;
c7996ad6
L
864 continue;
865 }
2c4c2bc0
RH
866 is_branch = FALSE;
867 break;
868
869 default:
870 continue;
871 }
748abff6
RH
872
873 /* Get the value of the symbol referred to by the reloc. */
bbe66d08 874 if (ELFNN_R_SYM (irel->r_info) < symtab_hdr->sh_info)
748abff6
RH
875 {
876 /* A local symbol. */
6cdc0ccc
AM
877 Elf_Internal_Sym *isym;
878
879 /* Read this BFD's local symbols. */
880 if (isymbuf == NULL)
881 {
882 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
883 if (isymbuf == NULL)
884 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
885 symtab_hdr->sh_info, 0,
886 NULL, NULL, NULL);
887 if (isymbuf == 0)
888 goto error_return;
889 }
890
60d8b524 891 isym = isymbuf + ELFNN_R_SYM (irel->r_info);
6cdc0ccc 892 if (isym->st_shndx == SHN_UNDEF)
4cc11e76 893 continue; /* We can't do anything with undefined symbols. */
6cdc0ccc 894 else if (isym->st_shndx == SHN_ABS)
748abff6 895 tsec = bfd_abs_section_ptr;
6cdc0ccc 896 else if (isym->st_shndx == SHN_COMMON)
748abff6 897 tsec = bfd_com_section_ptr;
6cdc0ccc 898 else if (isym->st_shndx == SHN_IA_64_ANSI_COMMON)
d9cf1b54 899 tsec = bfd_com_section_ptr;
3e932841 900 else
6cdc0ccc 901 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
748abff6 902
6cdc0ccc 903 toff = isym->st_value;
2c4c2bc0 904 dyn_i = get_dyn_sym_info (ia64_info, NULL, abfd, irel, FALSE);
bf8b15af 905 symtype = ELF_ST_TYPE (isym->st_info);
748abff6
RH
906 }
907 else
908 {
909 unsigned long indx;
910 struct elf_link_hash_entry *h;
748abff6 911
bbe66d08 912 indx = ELFNN_R_SYM (irel->r_info) - symtab_hdr->sh_info;
748abff6
RH
913 h = elf_sym_hashes (abfd)[indx];
914 BFD_ASSERT (h != NULL);
915
916 while (h->root.type == bfd_link_hash_indirect
917 || h->root.type == bfd_link_hash_warning)
918 h = (struct elf_link_hash_entry *) h->root.u.i.link;
919
b34976b6 920 dyn_i = get_dyn_sym_info (ia64_info, h, abfd, irel, FALSE);
748abff6
RH
921
922 /* For branches to dynamic symbols, we're interested instead
923 in a branch to the PLT entry. */
2c4c2bc0 924 if (is_branch && dyn_i && dyn_i->want_plt2)
748abff6 925 {
2f9bd3f6
RH
926 /* Internal branches shouldn't be sent to the PLT.
927 Leave this for now and we'll give an error later. */
928 if (r_type != R_IA64_PCREL21B)
929 continue;
930
748abff6
RH
931 tsec = ia64_info->plt_sec;
932 toff = dyn_i->plt2_offset;
3fa1d917 933 BFD_ASSERT (irel->r_addend == 0);
748abff6 934 }
2c4c2bc0
RH
935
936 /* Can't do anything else with dynamic symbols. */
986a241f 937 else if (elfNN_ia64_dynamic_symbol_p (h, link_info, r_type))
2c4c2bc0
RH
938 continue;
939
748abff6
RH
940 else
941 {
4cc11e76 942 /* We can't do anything with undefined symbols. */
748abff6
RH
943 if (h->root.type == bfd_link_hash_undefined
944 || h->root.type == bfd_link_hash_undefweak)
945 continue;
946
947 tsec = h->root.u.def.section;
948 toff = h->root.u.def.value;
949 }
bf8b15af
L
950
951 symtype = h->type;
5dd23ec1 952 }
3fa1d917 953
9f2e92c5 954 if (tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
bf8b15af
L
955 {
956 /* At this stage in linking, no SEC_MERGE symbol has been
957 adjusted, so all references to such symbols need to be
958 passed through _bfd_merged_section_offset. (Later, in
959 relocate_section, all SEC_MERGE symbols *except* for
960 section symbols have been adjusted.)
961
962 gas may reduce relocations against symbols in SEC_MERGE
963 sections to a relocation against the section symbol when
964 the original addend was zero. When the reloc is against
965 a section symbol we should include the addend in the
966 offset passed to _bfd_merged_section_offset, since the
967 location of interest is the original symbol. On the
968 other hand, an access to "sym+addend" where "sym" is not
969 a section symbol should not include the addend; Such an
970 access is presumed to be an offset from "sym"; The
971 location of interest is just "sym". */
972 if (symtype == STT_SECTION)
973 toff += irel->r_addend;
f12123c0 974
bf8b15af
L
975 toff = _bfd_merged_section_offset (abfd, &tsec,
976 elf_section_data (tsec)->sec_info,
977 toff);
978
979 if (symtype != STT_SECTION)
980 toff += irel->r_addend;
981 }
9f2e92c5
L
982 else
983 toff += irel->r_addend;
984
3fa1d917 985 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
748abff6
RH
986
987 roff = irel->r_offset;
748abff6 988
2c4c2bc0
RH
989 if (is_branch)
990 {
de0d9f33
L
991 bfd_signed_vma offset;
992
2c4c2bc0
RH
993 reladdr = (sec->output_section->vma
994 + sec->output_offset
995 + roff) & (bfd_vma) -4;
748abff6 996
2c4c2bc0
RH
997 /* If the branch is in range, no need to do anything. */
998 if ((bfd_signed_vma) (symaddr - reladdr) >= -0x1000000
999 && (bfd_signed_vma) (symaddr - reladdr) <= 0x0FFFFF0)
03609792
L
1000 {
1001 /* If the 60-bit branch is in 21-bit range, optimize it. */
1002 if (r_type == R_IA64_PCREL60B)
1003 {
bbb268c3 1004 elfNN_ia64_relax_brl (contents, roff);
03609792
L
1005
1006 irel->r_info
7e3102a7 1007 = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
03609792
L
1008 R_IA64_PCREL21B);
1009
1010 /* If the original relocation offset points to slot
1011 1, change it to slot 2. */
1012 if ((irel->r_offset & 3) == 1)
1013 irel->r_offset += 1;
1014 }
1015
1016 continue;
1017 }
1018 else if (r_type == R_IA64_PCREL60B)
2c4c2bc0 1019 continue;
83b6bd86
L
1020 else if (elfNN_ia64_relax_br (contents, roff))
1021 {
1022 irel->r_info
1023 = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
1024 R_IA64_PCREL60B);
1025
1026 /* Make the relocation offset point to slot 1. */
1027 irel->r_offset = (irel->r_offset & ~((bfd_vma) 0x3)) + 1;
1028 continue;
1029 }
748abff6 1030
e525914f
L
1031 /* We can't put a trampoline in a .init/.fini section. Issue
1032 an error. */
1033 if (strcmp (sec->output_section->name, ".init") == 0
1034 || strcmp (sec->output_section->name, ".fini") == 0)
1035 {
1036 (*_bfd_error_handler)
d003868e
AM
1037 (_("%B: Can't relax br at 0x%lx in section `%A'. Please use brl or indirect branch."),
1038 sec->owner, sec, (unsigned long) roff);
e525914f
L
1039 bfd_set_error (bfd_error_bad_value);
1040 goto error_return;
1041 }
1042
2c4c2bc0 1043 /* If the branch and target are in the same section, you've
c5509b92
L
1044 got one honking big section and we can't help you unless
1045 you are branching backwards. You'll get an error message
1046 later. */
1047 if (tsec == sec && toff > roff)
2c4c2bc0 1048 continue;
748abff6 1049
2c4c2bc0
RH
1050 /* Look for an existing fixup to this address. */
1051 for (f = fixups; f ; f = f->next)
1052 if (f->tsec == tsec && f->toff == toff)
1053 break;
748abff6 1054
2c4c2bc0 1055 if (f == NULL)
748abff6 1056 {
2c4c2bc0
RH
1057 /* Two alternatives: If it's a branch to a PLT entry, we can
1058 make a copy of the FULL_PLT entry. Otherwise, we'll have
1059 to use a `brl' insn to get where we're going. */
1060
1061 size_t size;
1062
1063 if (tsec == ia64_info->plt_sec)
1064 size = sizeof (plt_full_entry);
1065 else
3f7deb8a 1066 size = oor_branch_size;
748abff6 1067
2c4c2bc0 1068 /* Resize the current section to make room for the new branch. */
eea6121a 1069 trampoff = (sec->size + 15) & (bfd_vma) -16;
de0d9f33
L
1070
1071 /* If trampoline is out of range, there is nothing we
1072 can do. */
1073 offset = trampoff - (roff & (bfd_vma) -4);
1074 if (offset < -0x1000000 || offset > 0x0FFFFF0)
1075 continue;
1076
2c4c2bc0
RH
1077 amt = trampoff + size;
1078 contents = (bfd_byte *) bfd_realloc (contents, amt);
1079 if (contents == NULL)
1080 goto error_return;
eea6121a 1081 sec->size = amt;
748abff6 1082
2c4c2bc0
RH
1083 if (tsec == ia64_info->plt_sec)
1084 {
1085 memcpy (contents + trampoff, plt_full_entry, size);
748abff6 1086
2c4c2bc0
RH
1087 /* Hijack the old relocation for use as the PLTOFF reloc. */
1088 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
1089 R_IA64_PLTOFF22);
1090 irel->r_offset = trampoff;
1091 }
1092 else
1093 {
3f7deb8a
L
1094 if (size == sizeof (oor_ip))
1095 {
1096 memcpy (contents + trampoff, oor_ip, size);
1097 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
1098 R_IA64_PCREL64I);
1099 irel->r_addend -= 16;
1100 irel->r_offset = trampoff + 2;
1101 }
1102 else
1103 {
1104 memcpy (contents + trampoff, oor_brl, size);
1105 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
1106 R_IA64_PCREL60B);
1107 irel->r_offset = trampoff + 2;
1108 }
1109
2c4c2bc0
RH
1110 }
1111
1112 /* Record the fixup so we don't do it again this section. */
1113 f = (struct one_fixup *)
1114 bfd_malloc ((bfd_size_type) sizeof (*f));
1115 f->next = fixups;
1116 f->tsec = tsec;
1117 f->toff = toff;
1118 f->trampoff = trampoff;
1119 fixups = f;
748abff6 1120 }
2c4c2bc0
RH
1121 else
1122 {
de0d9f33
L
1123 /* If trampoline is out of range, there is nothing we
1124 can do. */
1125 offset = f->trampoff - (roff & (bfd_vma) -4);
1126 if (offset < -0x1000000 || offset > 0x0FFFFF0)
1127 continue;
1128
2c4c2bc0
RH
1129 /* Nop out the reloc, since we're finalizing things here. */
1130 irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
1131 }
1132
de0d9f33 1133 /* Fix up the existing branch to hit the trampoline. */
bbb268c3
JW
1134 if (elfNN_ia64_install_value (contents + roff, offset, r_type)
1135 != bfd_reloc_ok)
2c4c2bc0 1136 goto error_return;
748abff6 1137
2c4c2bc0
RH
1138 changed_contents = TRUE;
1139 changed_relocs = TRUE;
748abff6
RH
1140 }
1141 else
1142 {
2c4c2bc0
RH
1143 /* Fetch the gp. */
1144 if (gp == 0)
1145 {
1146 bfd *obfd = sec->output_section->owner;
1147 gp = _bfd_get_gp_value (obfd);
1148 if (gp == 0)
1149 {
1150 if (!elfNN_ia64_choose_gp (obfd, link_info))
1151 goto error_return;
1152 gp = _bfd_get_gp_value (obfd);
1153 }
1154 }
748abff6 1155
2c4c2bc0 1156 /* If the data is out of range, do nothing. */
484a4f9c
RH
1157 if ((bfd_signed_vma) (symaddr - gp) >= 0x200000
1158 ||(bfd_signed_vma) (symaddr - gp) < -0x200000)
2c4c2bc0 1159 continue;
748abff6 1160
2c4c2bc0
RH
1161 if (r_type == R_IA64_LTOFF22X)
1162 {
1163 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
1164 R_IA64_GPREL22);
1165 changed_relocs = TRUE;
1166 if (dyn_i->want_gotx)
1167 {
1168 dyn_i->want_gotx = 0;
1169 changed_got |= !dyn_i->want_got;
1170 }
1171 }
1172 else
1173 {
bbb268c3 1174 elfNN_ia64_relax_ldxmov (contents, roff);
2c4c2bc0
RH
1175 irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
1176 changed_contents = TRUE;
1177 changed_relocs = TRUE;
1178 }
1179 }
748abff6
RH
1180 }
1181
2c4c2bc0
RH
1182 /* ??? If we created fixups, this may push the code segment large
1183 enough that the data segment moves, which will change the GP.
1184 Reset the GP so that we re-calculate next round. We need to
1185 do this at the _beginning_ of the next round; now will not do. */
f12123c0 1186
748abff6
RH
1187 /* Clean up and go home. */
1188 while (fixups)
1189 {
1190 struct one_fixup *f = fixups;
1191 fixups = fixups->next;
1192 free (f);
1193 }
1194
6cdc0ccc
AM
1195 if (isymbuf != NULL
1196 && symtab_hdr->contents != (unsigned char *) isymbuf)
748abff6
RH
1197 {
1198 if (! link_info->keep_memory)
6cdc0ccc 1199 free (isymbuf);
748abff6
RH
1200 else
1201 {
6cdc0ccc
AM
1202 /* Cache the symbols for elf_link_input_bfd. */
1203 symtab_hdr->contents = (unsigned char *) isymbuf;
748abff6
RH
1204 }
1205 }
1206
6cdc0ccc
AM
1207 if (contents != NULL
1208 && elf_section_data (sec)->this_hdr.contents != contents)
748abff6 1209 {
6cdc0ccc
AM
1210 if (!changed_contents && !link_info->keep_memory)
1211 free (contents);
748abff6
RH
1212 else
1213 {
6cdc0ccc
AM
1214 /* Cache the section contents for elf_link_input_bfd. */
1215 elf_section_data (sec)->this_hdr.contents = contents;
748abff6
RH
1216 }
1217 }
1218
6cdc0ccc
AM
1219 if (elf_section_data (sec)->relocs != internal_relocs)
1220 {
1221 if (!changed_relocs)
1222 free (internal_relocs);
1223 else
1224 elf_section_data (sec)->relocs = internal_relocs;
1225 }
1226
2c4c2bc0
RH
1227 if (changed_got)
1228 {
1229 struct elfNN_ia64_allocate_data data;
1230 data.info = link_info;
1231 data.ofs = 0;
9d73f260 1232 ia64_info->self_dtpmod_offset = (bfd_vma) -1;
2c4c2bc0
RH
1233
1234 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
1235 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
1236 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
eea6121a 1237 ia64_info->got_sec->size = data.ofs;
2c4c2bc0 1238
90b263f3
L
1239 if (ia64_info->root.dynamic_sections_created
1240 && ia64_info->rel_got_sec != NULL)
4a78a1f4
AS
1241 {
1242 /* Resize .rela.got. */
1243 ia64_info->rel_got_sec->size = 0;
1244 if (link_info->shared
1245 && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
1246 ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
1247 data.only_got = TRUE;
1248 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries,
1249 &data);
1250 }
2c4c2bc0
RH
1251 }
1252
fbbc3759
L
1253 if (link_info->relax_pass == 0)
1254 {
1255 /* Pass 0 is only needed to relax br. */
1256 sec->skip_relax_pass_0 = skip_relax_pass_0;
1257 sec->skip_relax_pass_1 = skip_relax_pass_1;
1258 }
c7996ad6 1259
748abff6 1260 *again = changed_contents || changed_relocs;
b34976b6 1261 return TRUE;
748abff6
RH
1262
1263 error_return:
6cdc0ccc
AM
1264 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
1265 free (isymbuf);
1266 if (contents != NULL
1267 && elf_section_data (sec)->this_hdr.contents != contents)
1268 free (contents);
1269 if (internal_relocs != NULL
1270 && elf_section_data (sec)->relocs != internal_relocs)
1271 free (internal_relocs);
b34976b6 1272 return FALSE;
748abff6 1273}
fbbc3759
L
1274#undef skip_relax_pass_0
1275#undef skip_relax_pass_1
2c4c2bc0
RH
1276
1277static void
eae50df2 1278elfNN_ia64_relax_ldxmov (bfd_byte *contents, bfd_vma off)
2c4c2bc0
RH
1279{
1280 int shift, r1, r3;
1281 bfd_vma dword, insn;
1282
1283 switch ((int)off & 0x3)
1284 {
1285 case 0: shift = 5; break;
1286 case 1: shift = 14; off += 3; break;
1287 case 2: shift = 23; off += 6; break;
60d8b524 1288 default:
2c4c2bc0
RH
1289 abort ();
1290 }
1291
bbb268c3 1292 dword = bfd_getl64 (contents + off);
2c4c2bc0
RH
1293 insn = (dword >> shift) & 0x1ffffffffffLL;
1294
1295 r1 = (insn >> 6) & 127;
1296 r3 = (insn >> 20) & 127;
1297 if (r1 == r3)
1298 insn = 0x8000000; /* nop */
1299 else
1300 insn = (insn & 0x7f01fff) | 0x10800000000LL; /* (qp) mov r1 = r3 */
1301
1302 dword &= ~(0x1ffffffffffLL << shift);
1303 dword |= (insn << shift);
bbb268c3 1304 bfd_putl64 (dword, contents + off);
2c4c2bc0 1305}
800eeca4 1306\f
b34976b6 1307/* Return TRUE if NAME is an unwind table section name. */
81545d45 1308
b34976b6 1309static inline bfd_boolean
0112cd26 1310is_unwind_section_name (bfd *abfd, const char *name)
81545d45 1311{
d9cf1b54
AM
1312 if (elfNN_ia64_hpux_vec (abfd->xvec)
1313 && !strcmp (name, ELF_STRING_ia64_unwind_hdr))
b34976b6 1314 return FALSE;
d9cf1b54 1315
0112cd26
NC
1316 return ((CONST_STRNEQ (name, ELF_STRING_ia64_unwind)
1317 && ! CONST_STRNEQ (name, ELF_STRING_ia64_unwind_info))
1318 || CONST_STRNEQ (name, ELF_STRING_ia64_unwind_once));
81545d45
RH
1319}
1320
800eeca4 1321/* Handle an IA-64 specific section when reading an object file. This
6dc132d9
L
1322 is called when bfd_section_from_shdr finds a section with an unknown
1323 type. */
800eeca4 1324
b34976b6 1325static bfd_boolean
6dc132d9
L
1326elfNN_ia64_section_from_shdr (bfd *abfd,
1327 Elf_Internal_Shdr *hdr,
1328 const char *name,
1329 int shindex)
800eeca4
JW
1330{
1331 asection *newsect;
1332
1333 /* There ought to be a place to keep ELF backend specific flags, but
1334 at the moment there isn't one. We just keep track of the
1335 sections by their name, instead. Fortunately, the ABI gives
1336 suggested names for all the MIPS specific sections, so we will
1337 probably get away with this. */
1338 switch (hdr->sh_type)
1339 {
1340 case SHT_IA_64_UNWIND:
d9cf1b54 1341 case SHT_IA_64_HP_OPT_ANOT:
800eeca4
JW
1342 break;
1343
1344 case SHT_IA_64_EXT:
1345 if (strcmp (name, ELF_STRING_ia64_archext) != 0)
b34976b6 1346 return FALSE;
800eeca4
JW
1347 break;
1348
1349 default:
b34976b6 1350 return FALSE;
800eeca4
JW
1351 }
1352
6dc132d9 1353 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
b34976b6 1354 return FALSE;
800eeca4
JW
1355 newsect = hdr->bfd_section;
1356
b34976b6 1357 return TRUE;
fa152c49
JW
1358}
1359
1360/* Convert IA-64 specific section flags to bfd internal section flags. */
1361
1362/* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
1363 flag. */
1364
b34976b6 1365static bfd_boolean
eae50df2
L
1366elfNN_ia64_section_flags (flagword *flags,
1367 const Elf_Internal_Shdr *hdr)
fa152c49 1368{
800eeca4 1369 if (hdr->sh_flags & SHF_IA_64_SHORT)
fa152c49 1370 *flags |= SEC_SMALL_DATA;
800eeca4 1371
b34976b6 1372 return TRUE;
800eeca4
JW
1373}
1374
1375/* Set the correct type for an IA-64 ELF section. We do this by the
1376 section name, which is a hack, but ought to work. */
1377
b34976b6 1378static bfd_boolean
eae50df2
L
1379elfNN_ia64_fake_sections (bfd *abfd, Elf_Internal_Shdr *hdr,
1380 asection *sec)
800eeca4
JW
1381{
1382 register const char *name;
1383
1384 name = bfd_get_section_name (abfd, sec);
1385
d9cf1b54 1386 if (is_unwind_section_name (abfd, name))
81545d45
RH
1387 {
1388 /* We don't have the sections numbered at this point, so sh_info
1389 is set later, in elfNN_ia64_final_write_processing. */
1390 hdr->sh_type = SHT_IA_64_UNWIND;
1391 hdr->sh_flags |= SHF_LINK_ORDER;
1392 }
800eeca4
JW
1393 else if (strcmp (name, ELF_STRING_ia64_archext) == 0)
1394 hdr->sh_type = SHT_IA_64_EXT;
d9cf1b54
AM
1395 else if (strcmp (name, ".HP.opt_annot") == 0)
1396 hdr->sh_type = SHT_IA_64_HP_OPT_ANOT;
800eeca4 1397 else if (strcmp (name, ".reloc") == 0)
5e8d7549
NC
1398 /* This is an ugly, but unfortunately necessary hack that is
1399 needed when producing EFI binaries on IA-64. It tells
1400 elf.c:elf_fake_sections() not to consider ".reloc" as a section
1401 containing ELF relocation info. We need this hack in order to
1402 be able to generate ELF binaries that can be translated into
1403 EFI applications (which are essentially COFF objects). Those
1404 files contain a COFF ".reloc" section inside an ELFNN object,
1405 which would normally cause BFD to segfault because it would
1406 attempt to interpret this section as containing relocation
1407 entries for section "oc". With this hack enabled, ".reloc"
1408 will be treated as a normal data section, which will avoid the
1409 segfault. However, you won't be able to create an ELFNN binary
1410 with a section named "oc" that needs relocations, but that's
1411 the kind of ugly side-effects you get when detecting section
1412 types based on their names... In practice, this limitation is
1413 unlikely to bite. */
800eeca4
JW
1414 hdr->sh_type = SHT_PROGBITS;
1415
1416 if (sec->flags & SEC_SMALL_DATA)
1417 hdr->sh_flags |= SHF_IA_64_SHORT;
1418
75eb734c
SE
1419 /* Some HP linkers look for the SHF_IA_64_HP_TLS flag instead of SHF_TLS. */
1420
1421 if (elfNN_ia64_hpux_vec (abfd->xvec) && (sec->flags & SHF_TLS))
1422 hdr->sh_flags |= SHF_IA_64_HP_TLS;
1423
b34976b6 1424 return TRUE;
800eeca4
JW
1425}
1426
81545d45
RH
1427/* The final processing done just before writing out an IA-64 ELF
1428 object file. */
1429
1430static void
eae50df2
L
1431elfNN_ia64_final_write_processing (bfd *abfd,
1432 bfd_boolean linker ATTRIBUTE_UNUSED)
81545d45
RH
1433{
1434 Elf_Internal_Shdr *hdr;
38ce5b11 1435 asection *s;
81545d45
RH
1436
1437 for (s = abfd->sections; s; s = s->next)
1438 {
1439 hdr = &elf_section_data (s)->this_hdr;
1440 switch (hdr->sh_type)
1441 {
1442 case SHT_IA_64_UNWIND:
38ce5b11
L
1443 /* The IA-64 processor-specific ABI requires setting sh_link
1444 to the unwind section, whereas HP-UX requires sh_info to
1445 do so. For maximum compatibility, we'll set both for
1446 now... */
1447 hdr->sh_info = hdr->sh_link;
81545d45
RH
1448 break;
1449 }
1450 }
9d46020e
AM
1451
1452 if (! elf_flags_init (abfd))
1453 {
1454 unsigned long flags = 0;
1455
1456 if (abfd->xvec->byteorder == BFD_ENDIAN_BIG)
1457 flags |= EF_IA_64_BE;
1458 if (bfd_get_mach (abfd) == bfd_mach_ia64_elf64)
1459 flags |= EF_IA_64_ABI64;
1460
1461 elf_elfheader(abfd)->e_flags = flags;
b34976b6 1462 elf_flags_init (abfd) = TRUE;
9d46020e 1463 }
81545d45
RH
1464}
1465
800eeca4
JW
1466/* Hook called by the linker routine which adds symbols from an object
1467 file. We use it to put .comm items in .sbss, and not .bss. */
1468
b34976b6 1469static bfd_boolean
a30e5f5f
AM
1470elfNN_ia64_add_symbol_hook (bfd *abfd,
1471 struct bfd_link_info *info,
eae50df2 1472 Elf_Internal_Sym *sym,
a30e5f5f
AM
1473 const char **namep ATTRIBUTE_UNUSED,
1474 flagword *flagsp ATTRIBUTE_UNUSED,
1475 asection **secp,
1476 bfd_vma *valp)
800eeca4
JW
1477{
1478 if (sym->st_shndx == SHN_COMMON
1049f94e 1479 && !info->relocatable
c0846b23 1480 && sym->st_size <= elf_gp_size (abfd))
800eeca4
JW
1481 {
1482 /* Common symbols less than or equal to -G nn bytes are
1483 automatically put into .sbss. */
1484
1485 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
1486
1487 if (scomm == NULL)
1488 {
3496cb2a
L
1489 scomm = bfd_make_section_with_flags (abfd, ".scommon",
1490 (SEC_ALLOC
1491 | SEC_IS_COMMON
1492 | SEC_LINKER_CREATED));
1493 if (scomm == NULL)
b34976b6 1494 return FALSE;
800eeca4
JW
1495 }
1496
1497 *secp = scomm;
1498 *valp = sym->st_size;
1499 }
1500
b34976b6 1501 return TRUE;
800eeca4
JW
1502}
1503
1504/* Return the number of additional phdrs we will need. */
1505
1506static int
a6b96beb
AM
1507elfNN_ia64_additional_program_headers (bfd *abfd,
1508 struct bfd_link_info *info ATTRIBUTE_UNUSED)
800eeca4
JW
1509{
1510 asection *s;
1511 int ret = 0;
1512
1513 /* See if we need a PT_IA_64_ARCHEXT segment. */
1514 s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1515 if (s && (s->flags & SEC_LOAD))
1516 ++ret;
1517
81545d45
RH
1518 /* Count how many PT_IA_64_UNWIND segments we need. */
1519 for (s = abfd->sections; s; s = s->next)
d9cf1b54 1520 if (is_unwind_section_name (abfd, s->name) && (s->flags & SEC_LOAD))
81545d45 1521 ++ret;
800eeca4
JW
1522
1523 return ret;
1524}
1525
b34976b6 1526static bfd_boolean
8ded5a0f
AM
1527elfNN_ia64_modify_segment_map (bfd *abfd,
1528 struct bfd_link_info *info ATTRIBUTE_UNUSED)
800eeca4
JW
1529{
1530 struct elf_segment_map *m, **pm;
81545d45 1531 Elf_Internal_Shdr *hdr;
800eeca4
JW
1532 asection *s;
1533
1534 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1535 all PT_LOAD segments. */
1536 s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1537 if (s && (s->flags & SEC_LOAD))
1538 {
1539 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
1540 if (m->p_type == PT_IA_64_ARCHEXT)
1541 break;
1542 if (m == NULL)
1543 {
dc810e39
AM
1544 m = ((struct elf_segment_map *)
1545 bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
800eeca4 1546 if (m == NULL)
b34976b6 1547 return FALSE;
800eeca4
JW
1548
1549 m->p_type = PT_IA_64_ARCHEXT;
1550 m->count = 1;
1551 m->sections[0] = s;
1552
1553 /* We want to put it after the PHDR and INTERP segments. */
1554 pm = &elf_tdata (abfd)->segment_map;
1555 while (*pm != NULL
1556 && ((*pm)->p_type == PT_PHDR
1557 || (*pm)->p_type == PT_INTERP))
1558 pm = &(*pm)->next;
1559
1560 m->next = *pm;
1561 *pm = m;
1562 }
1563 }
1564
81545d45
RH
1565 /* Install PT_IA_64_UNWIND segments, if needed. */
1566 for (s = abfd->sections; s; s = s->next)
800eeca4 1567 {
81545d45
RH
1568 hdr = &elf_section_data (s)->this_hdr;
1569 if (hdr->sh_type != SHT_IA_64_UNWIND)
1570 continue;
1571
1572 if (s && (s->flags & SEC_LOAD))
800eeca4 1573 {
81545d45 1574 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
d9cf1b54
AM
1575 if (m->p_type == PT_IA_64_UNWIND)
1576 {
40c97fc6
AM
1577 int i;
1578
d9cf1b54
AM
1579 /* Look through all sections in the unwind segment
1580 for a match since there may be multiple sections
1581 to a segment. */
40c97fc6
AM
1582 for (i = m->count - 1; i >= 0; --i)
1583 if (m->sections[i] == s)
1584 break;
d9cf1b54 1585
40c97fc6 1586 if (i >= 0)
d9cf1b54
AM
1587 break;
1588 }
81545d45 1589
800eeca4 1590 if (m == NULL)
81545d45 1591 {
dc810e39
AM
1592 m = ((struct elf_segment_map *)
1593 bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
81545d45 1594 if (m == NULL)
b34976b6 1595 return FALSE;
800eeca4 1596
81545d45
RH
1597 m->p_type = PT_IA_64_UNWIND;
1598 m->count = 1;
1599 m->sections[0] = s;
1600 m->next = NULL;
800eeca4 1601
81545d45
RH
1602 /* We want to put it last. */
1603 pm = &elf_tdata (abfd)->segment_map;
1604 while (*pm != NULL)
1605 pm = &(*pm)->next;
1606 *pm = m;
1607 }
800eeca4
JW
1608 }
1609 }
1610
e36284ab
AM
1611 return TRUE;
1612}
1613
1614/* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1615 the input sections for each output section in the segment and testing
1616 for SHF_IA_64_NORECOV on each. */
1617
1618static bfd_boolean
1619elfNN_ia64_modify_program_headers (bfd *abfd,
1620 struct bfd_link_info *info ATTRIBUTE_UNUSED)
1621{
1622 struct elf_obj_tdata *tdata = elf_tdata (abfd);
1623 struct elf_segment_map *m;
1624 Elf_Internal_Phdr *p;
1625
1626 for (p = tdata->phdr, m = tdata->segment_map; m != NULL; m = m->next, p++)
800eeca4
JW
1627 if (m->p_type == PT_LOAD)
1628 {
1629 int i;
1630 for (i = m->count - 1; i >= 0; --i)
1631 {
8423293d 1632 struct bfd_link_order *order = m->sections[i]->map_head.link_order;
e36284ab
AM
1633
1634 while (order != NULL)
800eeca4
JW
1635 {
1636 if (order->type == bfd_indirect_link_order)
1637 {
1638 asection *is = order->u.indirect.section;
1639 bfd_vma flags = elf_section_data(is)->this_hdr.sh_flags;
1640 if (flags & SHF_IA_64_NORECOV)
1641 {
e36284ab 1642 p->p_flags |= PF_IA_64_NORECOV;
800eeca4
JW
1643 goto found;
1644 }
1645 }
1646 order = order->next;
1647 }
1648 }
1649 found:;
1650 }
1651
b34976b6 1652 return TRUE;
800eeca4
JW
1653}
1654
800eeca4
JW
1655/* According to the Tahoe assembler spec, all labels starting with a
1656 '.' are local. */
1657
b34976b6 1658static bfd_boolean
eae50df2
L
1659elfNN_ia64_is_local_label_name (bfd *abfd ATTRIBUTE_UNUSED,
1660 const char *name)
800eeca4
JW
1661{
1662 return name[0] == '.';
1663}
1664
1665/* Should we do dynamic things to this symbol? */
1666
b34976b6 1667static bfd_boolean
eae50df2
L
1668elfNN_ia64_dynamic_symbol_p (struct elf_link_hash_entry *h,
1669 struct bfd_link_info *info, int r_type)
800eeca4 1670{
986a241f
RH
1671 bfd_boolean ignore_protected
1672 = ((r_type & 0xf8) == 0x40 /* FPTR relocs */
1673 || (r_type & 0xf8) == 0x50); /* LTOFF_FPTR relocs */
800eeca4 1674
986a241f 1675 return _bfd_elf_dynamic_symbol_p (h, info, ignore_protected);
800eeca4
JW
1676}
1677\f
800eeca4 1678static struct bfd_hash_entry*
eae50df2
L
1679elfNN_ia64_new_elf_hash_entry (struct bfd_hash_entry *entry,
1680 struct bfd_hash_table *table,
1681 const char *string)
800eeca4 1682{
bbe66d08
JW
1683 struct elfNN_ia64_link_hash_entry *ret;
1684 ret = (struct elfNN_ia64_link_hash_entry *) entry;
800eeca4
JW
1685
1686 /* Allocate the structure if it has not already been allocated by a
1687 subclass. */
1688 if (!ret)
1689 ret = bfd_hash_allocate (table, sizeof (*ret));
1690
1691 if (!ret)
1692 return 0;
1693
800eeca4 1694 /* Call the allocation method of the superclass. */
bbe66d08 1695 ret = ((struct elfNN_ia64_link_hash_entry *)
800eeca4
JW
1696 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1697 table, string));
1698
4f40114d 1699 ret->info = NULL;
396a682d
L
1700 ret->count = 0;
1701 ret->sorted_count = 0;
1702 ret->size = 0;
800eeca4
JW
1703 return (struct bfd_hash_entry *) ret;
1704}
1705
1706static void
eae50df2
L
1707elfNN_ia64_hash_copy_indirect (struct bfd_link_info *info,
1708 struct elf_link_hash_entry *xdir,
1709 struct elf_link_hash_entry *xind)
800eeca4 1710{
bbe66d08 1711 struct elfNN_ia64_link_hash_entry *dir, *ind;
800eeca4 1712
57c7194e
AM
1713 dir = (struct elfNN_ia64_link_hash_entry *) xdir;
1714 ind = (struct elfNN_ia64_link_hash_entry *) xind;
800eeca4 1715
3e932841 1716 /* Copy down any references that we may have already seen to the
800eeca4
JW
1717 symbol which just became indirect. */
1718
f5385ebf
AM
1719 dir->root.ref_dynamic |= ind->root.ref_dynamic;
1720 dir->root.ref_regular |= ind->root.ref_regular;
1721 dir->root.ref_regular_nonweak |= ind->root.ref_regular_nonweak;
1722 dir->root.needs_plt |= ind->root.needs_plt;
800eeca4 1723
1e370bd2 1724 if (ind->root.root.type != bfd_link_hash_indirect)
0a991dfe
AM
1725 return;
1726
800eeca4
JW
1727 /* Copy over the got and plt data. This would have been done
1728 by check_relocs. */
1729
fcfa13d2 1730 if (ind->info != NULL)
800eeca4 1731 {
bbe66d08 1732 struct elfNN_ia64_dyn_sym_info *dyn_i;
396a682d
L
1733 unsigned int count;
1734
1735 if (dir->info)
1736 free (dir->info);
1737
1738 dir->info = ind->info;
1739 dir->count = ind->count;
1740 dir->sorted_count = ind->sorted_count;
1741 dir->size = ind->size;
800eeca4 1742
800eeca4 1743 ind->info = NULL;
396a682d
L
1744 ind->count = 0;
1745 ind->sorted_count = 0;
1746 ind->size = 0;
800eeca4
JW
1747
1748 /* Fix up the dyn_sym_info pointers to the global symbol. */
396a682d
L
1749 for (count = dir->count, dyn_i = dir->info;
1750 count != 0;
1751 count--, dyn_i++)
800eeca4
JW
1752 dyn_i->h = &dir->root;
1753 }
800eeca4
JW
1754
1755 /* Copy over the dynindx. */
1756
fcfa13d2 1757 if (ind->root.dynindx != -1)
800eeca4 1758 {
fcfa13d2
AM
1759 if (dir->root.dynindx != -1)
1760 _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr,
1761 dir->root.dynstr_index);
800eeca4
JW
1762 dir->root.dynindx = ind->root.dynindx;
1763 dir->root.dynstr_index = ind->root.dynstr_index;
1764 ind->root.dynindx = -1;
1765 ind->root.dynstr_index = 0;
1766 }
800eeca4
JW
1767}
1768
1769static void
eae50df2
L
1770elfNN_ia64_hash_hide_symbol (struct bfd_link_info *info,
1771 struct elf_link_hash_entry *xh,
1772 bfd_boolean force_local)
800eeca4 1773{
bbe66d08
JW
1774 struct elfNN_ia64_link_hash_entry *h;
1775 struct elfNN_ia64_dyn_sym_info *dyn_i;
396a682d 1776 unsigned int count;
800eeca4 1777
bbe66d08 1778 h = (struct elfNN_ia64_link_hash_entry *)xh;
800eeca4 1779
e5094212 1780 _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
800eeca4 1781
396a682d
L
1782 for (count = h->count, dyn_i = h->info;
1783 count != 0;
1784 count--, dyn_i++)
6a32c710
L
1785 {
1786 dyn_i->want_plt2 = 0;
1787 dyn_i->want_plt = 0;
1788 }
800eeca4
JW
1789}
1790
0aa92b58
JJ
1791/* Compute a hash of a local hash entry. */
1792
1793static hashval_t
eae50df2 1794elfNN_ia64_local_htab_hash (const void *ptr)
0aa92b58
JJ
1795{
1796 struct elfNN_ia64_local_hash_entry *entry
1797 = (struct elfNN_ia64_local_hash_entry *) ptr;
1798
1799 return (((entry->id & 0xff) << 24) | ((entry->id & 0xff00) << 8))
1800 ^ entry->r_sym ^ (entry->id >> 16);
1801}
1802
1803/* Compare local hash entries. */
1804
1805static int
eae50df2 1806elfNN_ia64_local_htab_eq (const void *ptr1, const void *ptr2)
0aa92b58
JJ
1807{
1808 struct elfNN_ia64_local_hash_entry *entry1
1809 = (struct elfNN_ia64_local_hash_entry *) ptr1;
1810 struct elfNN_ia64_local_hash_entry *entry2
1811 = (struct elfNN_ia64_local_hash_entry *) ptr2;
1812
1813 return entry1->id == entry2->id && entry1->r_sym == entry2->r_sym;
1814}
1815
800eeca4
JW
1816/* Create the derived linker hash table. The IA-64 ELF port uses this
1817 derived hash table to keep information specific to the IA-64 ElF
1818 linker (without using static variables). */
1819
1820static struct bfd_link_hash_table*
eae50df2 1821elfNN_ia64_hash_table_create (bfd *abfd)
800eeca4 1822{
bbe66d08 1823 struct elfNN_ia64_link_hash_table *ret;
800eeca4 1824
6e84a906 1825 ret = bfd_zmalloc ((bfd_size_type) sizeof (*ret));
800eeca4
JW
1826 if (!ret)
1827 return 0;
6e84a906 1828
800eeca4 1829 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
66eb6687
AM
1830 elfNN_ia64_new_elf_hash_entry,
1831 sizeof (struct elfNN_ia64_link_hash_entry)))
800eeca4 1832 {
6e84a906 1833 free (ret);
800eeca4
JW
1834 return 0;
1835 }
1836
0aa92b58
JJ
1837 ret->loc_hash_table = htab_try_create (1024, elfNN_ia64_local_htab_hash,
1838 elfNN_ia64_local_htab_eq, NULL);
1839 ret->loc_hash_memory = objalloc_create ();
1840 if (!ret->loc_hash_table || !ret->loc_hash_memory)
6e84a906
DJ
1841 {
1842 free (ret);
1843 return 0;
1844 }
1845
800eeca4
JW
1846 return &ret->root.root;
1847}
1848
396a682d
L
1849/* Free the global elfNN_ia64_dyn_sym_info array. */
1850
1851static bfd_boolean
1852elfNN_ia64_global_dyn_info_free (void **xentry,
1853 PTR unused ATTRIBUTE_UNUSED)
1854{
1855 struct elfNN_ia64_link_hash_entry *entry
1856 = (struct elfNN_ia64_link_hash_entry *) xentry;
1857
1858 if (entry->root.root.type == bfd_link_hash_warning)
1859 entry = (struct elfNN_ia64_link_hash_entry *) entry->root.root.u.i.link;
1860
1861 if (entry->info)
1862 {
1863 free (entry->info);
1864 entry->info = NULL;
1865 entry->count = 0;
1866 entry->sorted_count = 0;
1867 entry->size = 0;
1868 }
1869
1870 return TRUE;
1871}
1872
1873/* Free the local elfNN_ia64_dyn_sym_info array. */
1874
1875static bfd_boolean
1876elfNN_ia64_local_dyn_info_free (void **slot,
1877 PTR unused ATTRIBUTE_UNUSED)
1878{
1879 struct elfNN_ia64_local_hash_entry *entry
1880 = (struct elfNN_ia64_local_hash_entry *) *slot;
1881
1882 if (entry->info)
1883 {
1884 free (entry->info);
1885 entry->info = NULL;
1886 entry->count = 0;
1887 entry->sorted_count = 0;
1888 entry->size = 0;
1889 }
1890
1891 return TRUE;
1892}
1893
0aa92b58 1894/* Destroy IA-64 linker hash table. */
800eeca4 1895
0aa92b58 1896static void
eae50df2 1897elfNN_ia64_hash_table_free (struct bfd_link_hash_table *hash)
800eeca4 1898{
0aa92b58
JJ
1899 struct elfNN_ia64_link_hash_table *ia64_info
1900 = (struct elfNN_ia64_link_hash_table *) hash;
1901 if (ia64_info->loc_hash_table)
396a682d
L
1902 {
1903 htab_traverse (ia64_info->loc_hash_table,
1904 elfNN_ia64_local_dyn_info_free, NULL);
1905 htab_delete (ia64_info->loc_hash_table);
1906 }
0aa92b58
JJ
1907 if (ia64_info->loc_hash_memory)
1908 objalloc_free ((struct objalloc *) ia64_info->loc_hash_memory);
396a682d
L
1909 elf_link_hash_traverse (&ia64_info->root,
1910 elfNN_ia64_global_dyn_info_free, NULL);
0aa92b58 1911 _bfd_generic_link_hash_table_free (hash);
800eeca4
JW
1912}
1913
1914/* Traverse both local and global hash tables. */
1915
bbe66d08 1916struct elfNN_ia64_dyn_sym_traverse_data
800eeca4 1917{
eae50df2 1918 bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, PTR);
800eeca4
JW
1919 PTR data;
1920};
1921
b34976b6 1922static bfd_boolean
eae50df2
L
1923elfNN_ia64_global_dyn_sym_thunk (struct bfd_hash_entry *xentry,
1924 PTR xdata)
800eeca4 1925{
bbe66d08
JW
1926 struct elfNN_ia64_link_hash_entry *entry
1927 = (struct elfNN_ia64_link_hash_entry *) xentry;
1928 struct elfNN_ia64_dyn_sym_traverse_data *data
1929 = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1930 struct elfNN_ia64_dyn_sym_info *dyn_i;
396a682d 1931 unsigned int count;
800eeca4 1932
e92d460e
AM
1933 if (entry->root.root.type == bfd_link_hash_warning)
1934 entry = (struct elfNN_ia64_link_hash_entry *) entry->root.root.u.i.link;
1935
396a682d
L
1936 for (count = entry->count, dyn_i = entry->info;
1937 count != 0;
1938 count--, dyn_i++)
800eeca4 1939 if (! (*data->func) (dyn_i, data->data))
b34976b6
AM
1940 return FALSE;
1941 return TRUE;
800eeca4
JW
1942}
1943
b34976b6 1944static bfd_boolean
eae50df2 1945elfNN_ia64_local_dyn_sym_thunk (void **slot, PTR xdata)
800eeca4 1946{
bbe66d08 1947 struct elfNN_ia64_local_hash_entry *entry
0aa92b58 1948 = (struct elfNN_ia64_local_hash_entry *) *slot;
bbe66d08
JW
1949 struct elfNN_ia64_dyn_sym_traverse_data *data
1950 = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1951 struct elfNN_ia64_dyn_sym_info *dyn_i;
396a682d 1952 unsigned int count;
800eeca4 1953
396a682d
L
1954 for (count = entry->count, dyn_i = entry->info;
1955 count != 0;
1956 count--, dyn_i++)
800eeca4 1957 if (! (*data->func) (dyn_i, data->data))
396a682d
L
1958 return FALSE;
1959 return TRUE;
800eeca4
JW
1960}
1961
1962static void
eae50df2
L
1963elfNN_ia64_dyn_sym_traverse (struct elfNN_ia64_link_hash_table *ia64_info,
1964 bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, PTR),
1965 PTR data)
800eeca4 1966{
bbe66d08 1967 struct elfNN_ia64_dyn_sym_traverse_data xdata;
800eeca4
JW
1968
1969 xdata.func = func;
1970 xdata.data = data;
1971
1972 elf_link_hash_traverse (&ia64_info->root,
bbe66d08 1973 elfNN_ia64_global_dyn_sym_thunk, &xdata);
0aa92b58
JJ
1974 htab_traverse (ia64_info->loc_hash_table,
1975 elfNN_ia64_local_dyn_sym_thunk, &xdata);
800eeca4
JW
1976}
1977\f
b34976b6 1978static bfd_boolean
eae50df2
L
1979elfNN_ia64_create_dynamic_sections (bfd *abfd,
1980 struct bfd_link_info *info)
800eeca4 1981{
bbe66d08 1982 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW
1983 asection *s;
1984
1985 if (! _bfd_elf_create_dynamic_sections (abfd, info))
b34976b6 1986 return FALSE;
800eeca4 1987
bbe66d08 1988 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW
1989
1990 ia64_info->plt_sec = bfd_get_section_by_name (abfd, ".plt");
1991 ia64_info->got_sec = bfd_get_section_by_name (abfd, ".got");
1992
1993 {
1994 flagword flags = bfd_get_section_flags (abfd, ia64_info->got_sec);
1995 bfd_set_section_flags (abfd, ia64_info->got_sec, SEC_SMALL_DATA | flags);
69bbc4c0
L
1996 /* The .got section is always aligned at 8 bytes. */
1997 bfd_set_section_alignment (abfd, ia64_info->got_sec, 3);
800eeca4
JW
1998 }
1999
2000 if (!get_pltoff (abfd, info, ia64_info))
b34976b6 2001 return FALSE;
800eeca4 2002
3496cb2a
L
2003 s = bfd_make_section_with_flags (abfd, ".rela.IA_64.pltoff",
2004 (SEC_ALLOC | SEC_LOAD
2005 | SEC_HAS_CONTENTS
2006 | SEC_IN_MEMORY
2007 | SEC_LINKER_CREATED
2008 | SEC_READONLY));
800eeca4 2009 if (s == NULL
5a260b66 2010 || !bfd_set_section_alignment (abfd, s, LOG_SECTION_ALIGN))
b34976b6 2011 return FALSE;
800eeca4
JW
2012 ia64_info->rel_pltoff_sec = s;
2013
3496cb2a
L
2014 s = bfd_make_section_with_flags (abfd, ".rela.got",
2015 (SEC_ALLOC | SEC_LOAD
2016 | SEC_HAS_CONTENTS
2017 | SEC_IN_MEMORY
2018 | SEC_LINKER_CREATED
2019 | SEC_READONLY));
800eeca4 2020 if (s == NULL
5a260b66 2021 || !bfd_set_section_alignment (abfd, s, LOG_SECTION_ALIGN))
b34976b6 2022 return FALSE;
800eeca4
JW
2023 ia64_info->rel_got_sec = s;
2024
b34976b6 2025 return TRUE;
800eeca4
JW
2026}
2027
f7460f5f
JJ
2028/* Find and/or create a hash entry for local symbol. */
2029static struct elfNN_ia64_local_hash_entry *
eae50df2
L
2030get_local_sym_hash (struct elfNN_ia64_link_hash_table *ia64_info,
2031 bfd *abfd, const Elf_Internal_Rela *rel,
2032 bfd_boolean create)
f7460f5f 2033{
0aa92b58 2034 struct elfNN_ia64_local_hash_entry e, *ret;
d48770d4 2035 asection *sec = abfd->sections;
0aa92b58
JJ
2036 hashval_t h = (((sec->id & 0xff) << 24) | ((sec->id & 0xff00) << 8))
2037 ^ ELFNN_R_SYM (rel->r_info) ^ (sec->id >> 16);
2038 void **slot;
d48770d4 2039
0aa92b58
JJ
2040 e.id = sec->id;
2041 e.r_sym = ELFNN_R_SYM (rel->r_info);
2042 slot = htab_find_slot_with_hash (ia64_info->loc_hash_table, &e, h,
2043 create ? INSERT : NO_INSERT);
f7460f5f 2044
0aa92b58
JJ
2045 if (!slot)
2046 return NULL;
f7460f5f 2047
0aa92b58
JJ
2048 if (*slot)
2049 return (struct elfNN_ia64_local_hash_entry *) *slot;
f7460f5f 2050
0aa92b58
JJ
2051 ret = (struct elfNN_ia64_local_hash_entry *)
2052 objalloc_alloc ((struct objalloc *) ia64_info->loc_hash_memory,
2053 sizeof (struct elfNN_ia64_local_hash_entry));
2054 if (ret)
2055 {
2056 memset (ret, 0, sizeof (*ret));
2057 ret->id = sec->id;
2058 ret->r_sym = ELFNN_R_SYM (rel->r_info);
2059 *slot = ret;
2060 }
fcf12726 2061 return ret;
f7460f5f
JJ
2062}
2063
396a682d
L
2064/* Used to sort elfNN_ia64_dyn_sym_info array. */
2065
2066static int
2067addend_compare (const void *xp, const void *yp)
2068{
2069 const struct elfNN_ia64_dyn_sym_info *x
2070 = (const struct elfNN_ia64_dyn_sym_info *) xp;
2071 const struct elfNN_ia64_dyn_sym_info *y
2072 = (const struct elfNN_ia64_dyn_sym_info *) yp;
2073
c26620e3 2074 return x->addend < y->addend ? -1 : x->addend > y->addend ? 1 : 0;
396a682d
L
2075}
2076
2077/* Sort elfNN_ia64_dyn_sym_info array and remove duplicates. */
2078
2079static unsigned int
2080sort_dyn_sym_info (struct elfNN_ia64_dyn_sym_info *info,
2081 unsigned int count)
2082{
293a0124
L
2083 bfd_vma curr, prev, got_offset;
2084 unsigned int i, kept, dup, diff, dest, src, len;
396a682d
L
2085
2086 qsort (info, count, sizeof (*info), addend_compare);
2087
2088 /* Find the first duplicate. */
2089 prev = info [0].addend;
293a0124 2090 got_offset = info [0].got_offset;
396a682d
L
2091 for (i = 1; i < count; i++)
2092 {
2093 curr = info [i].addend;
2094 if (curr == prev)
293a0124
L
2095 {
2096 /* For duplicates, make sure that GOT_OFFSET is valid. */
2097 if (got_offset == (bfd_vma) -1)
2098 got_offset = info [i].got_offset;
2099 break;
2100 }
2101 got_offset = info [i].got_offset;
396a682d
L
2102 prev = curr;
2103 }
2104
293a0124
L
2105 /* We may move a block of elements to here. */
2106 dest = i++;
2107
396a682d
L
2108 /* Remove duplicates. */
2109 if (i < count)
2110 {
396a682d
L
2111 while (i < count)
2112 {
293a0124
L
2113 /* For duplicates, make sure that the kept one has a valid
2114 got_offset. */
2115 kept = dest - 1;
2116 if (got_offset != (bfd_vma) -1)
2117 info [kept].got_offset = got_offset;
2118
396a682d 2119 curr = info [i].addend;
293a0124 2120 got_offset = info [i].got_offset;
396a682d
L
2121
2122 /* Move a block of elements whose first one is different from
2123 the previous. */
2124 if (curr == prev)
2125 {
2126 for (src = i + 1; src < count; src++)
293a0124
L
2127 {
2128 if (info [src].addend != curr)
2129 break;
2130 /* For duplicates, make sure that GOT_OFFSET is
2131 valid. */
2132 if (got_offset == (bfd_vma) -1)
2133 got_offset = info [src].got_offset;
2134 }
2135
2136 /* Make sure that the kept one has a valid got_offset. */
2137 if (got_offset != (bfd_vma) -1)
2138 info [kept].got_offset = got_offset;
396a682d
L
2139 }
2140 else
2141 src = i;
2142
2143 if (src >= count)
2144 break;
2145
293a0124 2146 /* Find the next duplicate. SRC will be kept. */
396a682d 2147 prev = info [src].addend;
293a0124 2148 got_offset = info [src].got_offset;
396a682d
L
2149 for (dup = src + 1; dup < count; dup++)
2150 {
2151 curr = info [dup].addend;
2152 if (curr == prev)
293a0124
L
2153 {
2154 /* Make sure that got_offset is valid. */
2155 if (got_offset == (bfd_vma) -1)
2156 got_offset = info [dup].got_offset;
2157
2158 /* For duplicates, make sure that the kept one has
2159 a valid got_offset. */
2160 if (got_offset != (bfd_vma) -1)
2161 info [dup - 1].got_offset = got_offset;
2162 break;
2163 }
2164 got_offset = info [dup].got_offset;
396a682d
L
2165 prev = curr;
2166 }
2167
2168 /* How much to move. */
2169 len = dup - src;
2170 i = dup + 1;
2171
2172 if (len == 1 && dup < count)
2173 {
2174 /* If we only move 1 element, we combine it with the next
293a0124
L
2175 one. There must be at least a duplicate. Find the
2176 next different one. */
396a682d 2177 for (diff = dup + 1, src++; diff < count; diff++, src++)
293a0124
L
2178 {
2179 if (info [diff].addend != curr)
2180 break;
2181 /* Make sure that got_offset is valid. */
2182 if (got_offset == (bfd_vma) -1)
2183 got_offset = info [diff].got_offset;
2184 }
2185
2186 /* Makre sure that the last duplicated one has an valid
2187 offset. */
2188 BFD_ASSERT (curr == prev);
2189 if (got_offset != (bfd_vma) -1)
2190 info [diff - 1].got_offset = got_offset;
396a682d
L
2191
2192 if (diff < count)
2193 {
293a0124
L
2194 /* Find the next duplicate. Track the current valid
2195 offset. */
396a682d 2196 prev = info [diff].addend;
293a0124 2197 got_offset = info [diff].got_offset;
396a682d
L
2198 for (dup = diff + 1; dup < count; dup++)
2199 {
2200 curr = info [dup].addend;
2201 if (curr == prev)
293a0124
L
2202 {
2203 /* For duplicates, make sure that GOT_OFFSET
2204 is valid. */
2205 if (got_offset == (bfd_vma) -1)
2206 got_offset = info [dup].got_offset;
2207 break;
2208 }
2209 got_offset = info [dup].got_offset;
396a682d
L
2210 prev = curr;
2211 diff++;
2212 }
2213
2214 len = diff - src + 1;
2215 i = diff + 1;
2216 }
2217 }
2218
2219 memmove (&info [dest], &info [src], len * sizeof (*info));
2220
2221 dest += len;
2222 }
2223
2224 count = dest;
2225 }
293a0124
L
2226 else
2227 {
2228 /* When we get here, either there is no duplicate at all or
2229 the only duplicate is the last element. */
2230 if (dest < count)
2231 {
2232 /* If the last element is a duplicate, make sure that the
2233 kept one has a valid got_offset. We also update count. */
2234 if (got_offset != (bfd_vma) -1)
2235 info [dest - 1].got_offset = got_offset;
2236 count = dest;
2237 }
2238 }
396a682d
L
2239
2240 return count;
2241}
2242
800eeca4 2243/* Find and/or create a descriptor for dynamic symbol info. This will
396a682d
L
2244 vary based on global or local symbol, and the addend to the reloc.
2245
2246 We don't sort when inserting. Also, we sort and eliminate
2247 duplicates if there is an unsorted section. Typically, this will
2248 only happen once, because we do all insertions before lookups. We
2249 then use bsearch to do a lookup. This also allows lookups to be
2250 fast. So we have fast insertion (O(log N) due to duplicate check),
2251 fast lookup (O(log N)) and one sort (O(N log N) expected time).
2252 Previously, all lookups were O(N) because of the use of the linked
2253 list and also all insertions were O(N) because of the check for
2254 duplicates. There are some complications here because the array
2255 size grows occasionally, which may add an O(N) factor, but this
2256 should be rare. Also, we free the excess array allocation, which
2257 requires a copy which is O(N), but this only happens once. */
800eeca4 2258
bbe66d08 2259static struct elfNN_ia64_dyn_sym_info *
eae50df2
L
2260get_dyn_sym_info (struct elfNN_ia64_link_hash_table *ia64_info,
2261 struct elf_link_hash_entry *h, bfd *abfd,
2262 const Elf_Internal_Rela *rel, bfd_boolean create)
800eeca4 2263{
396a682d
L
2264 struct elfNN_ia64_dyn_sym_info **info_p, *info, *dyn_i, key;
2265 unsigned int *count_p, *sorted_count_p, *size_p;
2266 unsigned int count, sorted_count, size;
800eeca4 2267 bfd_vma addend = rel ? rel->r_addend : 0;
396a682d 2268 bfd_size_type amt;
3e932841 2269
800eeca4 2270 if (h)
396a682d
L
2271 {
2272 struct elfNN_ia64_link_hash_entry *global_h;
2273
2274 global_h = (struct elfNN_ia64_link_hash_entry *) h;
2275 info_p = &global_h->info;
2276 count_p = &global_h->count;
2277 sorted_count_p = &global_h->sorted_count;
2278 size_p = &global_h->size;
2279 }
800eeca4
JW
2280 else
2281 {
bbe66d08 2282 struct elfNN_ia64_local_hash_entry *loc_h;
800eeca4 2283
f7460f5f 2284 loc_h = get_local_sym_hash (ia64_info, abfd, rel, create);
f86b235a
RH
2285 if (!loc_h)
2286 {
2287 BFD_ASSERT (!create);
2288 return NULL;
2289 }
800eeca4 2290
396a682d
L
2291 info_p = &loc_h->info;
2292 count_p = &loc_h->count;
2293 sorted_count_p = &loc_h->sorted_count;
2294 size_p = &loc_h->size;
3e932841 2295 }
800eeca4 2296
396a682d
L
2297 count = *count_p;
2298 sorted_count = *sorted_count_p;
2299 size = *size_p;
2300 info = *info_p;
2301 if (create)
800eeca4 2302 {
396a682d
L
2303 /* When we create the array, we don't check for duplicates,
2304 except in the previously sorted section if one exists, and
2305 against the last inserted entry. This allows insertions to
2306 be fast. */
2307 if (info)
2308 {
2309 if (sorted_count)
2310 {
2311 /* Try bsearch first on the sorted section. */
2312 key.addend = addend;
2313 dyn_i = bsearch (&key, info, sorted_count,
2314 sizeof (*info), addend_compare);
2315
2316 if (dyn_i)
2317 {
2318 return dyn_i;
2319 }
2320 }
2321
2322 /* Do a quick check for the last inserted entry. */
2323 dyn_i = info + count - 1;
2324 if (dyn_i->addend == addend)
2325 {
2326 return dyn_i;
2327 }
2328 }
2329
2330 if (size == 0)
2331 {
2332 /* It is the very first element. We create the array of size
2333 1. */
2334 size = 1;
2335 amt = size * sizeof (*info);
2336 info = bfd_malloc (amt);
2337 }
2338 else if (size <= count)
2339 {
2340 /* We double the array size every time when we reach the
2341 size limit. */
2342 size += size;
2343 amt = size * sizeof (*info);
2344 info = bfd_realloc (info, amt);
2345 }
2346 else
2347 goto has_space;
2348
2349 if (info == NULL)
2350 return NULL;
2351 *size_p = size;
2352 *info_p = info;
2353
2354has_space:
2355 /* Append the new one to the array. */
2356 dyn_i = info + count;
2357 memset (dyn_i, 0, sizeof (*dyn_i));
293a0124 2358 dyn_i->got_offset = (bfd_vma) -1;
800eeca4 2359 dyn_i->addend = addend;
9a2e389a 2360
396a682d
L
2361 /* We increment count only since the new ones are unsorted and
2362 may have duplicate. */
2363 (*count_p)++;
2364 }
2365 else
2366 {
2367 /* It is a lookup without insertion. Sort array if part of the
2368 array isn't sorted. */
2369 if (count != sorted_count)
2370 {
2371 count = sort_dyn_sym_info (info, count);
2372 *count_p = count;
2373 *sorted_count_p = count;
2374 }
2375
2376 /* Free unused memory. */
2377 if (size != count)
2378 {
2379 amt = count * sizeof (*info);
2380 info = bfd_malloc (amt);
2381 if (info != NULL)
2382 {
2383 memcpy (info, *info_p, amt);
2384 free (*info_p);
2385 *size_p = count;
2386 *info_p = info;
2387 }
2388 }
2389
2390 key.addend = addend;
2391 dyn_i = bsearch (&key, info, count,
2392 sizeof (*info), addend_compare);
800eeca4
JW
2393 }
2394
2395 return dyn_i;
2396}
2397
2398static asection *
eae50df2
L
2399get_got (bfd *abfd, struct bfd_link_info *info,
2400 struct elfNN_ia64_link_hash_table *ia64_info)
800eeca4 2401{
64bf6ae6 2402 asection *got;
800eeca4
JW
2403 bfd *dynobj;
2404
2405 got = ia64_info->got_sec;
2406 if (!got)
2407 {
2408 flagword flags;
2409
2410 dynobj = ia64_info->root.dynobj;
2411 if (!dynobj)
2412 ia64_info->root.dynobj = dynobj = abfd;
2413 if (!_bfd_elf_create_got_section (dynobj, info))
2414 return 0;
2415
2416 got = bfd_get_section_by_name (dynobj, ".got");
2417 BFD_ASSERT (got);
2418 ia64_info->got_sec = got;
2419
8651fcf9
L
2420 /* The .got section is always aligned at 8 bytes. */
2421 if (!bfd_set_section_alignment (abfd, got, 3))
2422 return 0;
2423
800eeca4
JW
2424 flags = bfd_get_section_flags (abfd, got);
2425 bfd_set_section_flags (abfd, got, SEC_SMALL_DATA | flags);
2426 }
2427
2428 return got;
2429}
2430
2431/* Create function descriptor section (.opd). This section is called .opd
4cc11e76 2432 because it contains "official procedure descriptors". The "official"
800eeca4
JW
2433 refers to the fact that these descriptors are used when taking the address
2434 of a procedure, thus ensuring a unique address for each procedure. */
2435
2436static asection *
eae50df2
L
2437get_fptr (bfd *abfd, struct bfd_link_info *info,
2438 struct elfNN_ia64_link_hash_table *ia64_info)
800eeca4
JW
2439{
2440 asection *fptr;
2441 bfd *dynobj;
2442
2443 fptr = ia64_info->fptr_sec;
2444 if (!fptr)
2445 {
2446 dynobj = ia64_info->root.dynobj;
2447 if (!dynobj)
2448 ia64_info->root.dynobj = dynobj = abfd;
2449
3496cb2a
L
2450 fptr = bfd_make_section_with_flags (dynobj, ".opd",
2451 (SEC_ALLOC
2452 | SEC_LOAD
2453 | SEC_HAS_CONTENTS
2454 | SEC_IN_MEMORY
2455 | (info->pie ? 0 : SEC_READONLY)
2456 | SEC_LINKER_CREATED));
800eeca4 2457 if (!fptr
800eeca4
JW
2458 || !bfd_set_section_alignment (abfd, fptr, 4))
2459 {
2460 BFD_ASSERT (0);
2461 return NULL;
2462 }
2463
2464 ia64_info->fptr_sec = fptr;
9203ba99
JJ
2465
2466 if (info->pie)
2467 {
2468 asection *fptr_rel;
3496cb2a
L
2469 fptr_rel = bfd_make_section_with_flags (dynobj, ".rela.opd",
2470 (SEC_ALLOC | SEC_LOAD
2471 | SEC_HAS_CONTENTS
2472 | SEC_IN_MEMORY
2473 | SEC_LINKER_CREATED
2474 | SEC_READONLY));
9203ba99 2475 if (fptr_rel == NULL
5a260b66
L
2476 || !bfd_set_section_alignment (abfd, fptr_rel,
2477 LOG_SECTION_ALIGN))
9203ba99
JJ
2478 {
2479 BFD_ASSERT (0);
2480 return NULL;
2481 }
2482
2483 ia64_info->rel_fptr_sec = fptr_rel;
2484 }
800eeca4
JW
2485 }
2486
2487 return fptr;
2488}
2489
2490static asection *
eae50df2
L
2491get_pltoff (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED,
2492 struct elfNN_ia64_link_hash_table *ia64_info)
800eeca4
JW
2493{
2494 asection *pltoff;
2495 bfd *dynobj;
2496
2497 pltoff = ia64_info->pltoff_sec;
2498 if (!pltoff)
2499 {
2500 dynobj = ia64_info->root.dynobj;
2501 if (!dynobj)
2502 ia64_info->root.dynobj = dynobj = abfd;
2503
3496cb2a
L
2504 pltoff = bfd_make_section_with_flags (dynobj,
2505 ELF_STRING_ia64_pltoff,
2506 (SEC_ALLOC
2507 | SEC_LOAD
2508 | SEC_HAS_CONTENTS
2509 | SEC_IN_MEMORY
2510 | SEC_SMALL_DATA
2511 | SEC_LINKER_CREATED));
800eeca4 2512 if (!pltoff
800eeca4
JW
2513 || !bfd_set_section_alignment (abfd, pltoff, 4))
2514 {
2515 BFD_ASSERT (0);
2516 return NULL;
2517 }
2518
2519 ia64_info->pltoff_sec = pltoff;
2520 }
2521
2522 return pltoff;
2523}
2524
2525static asection *
eae50df2
L
2526get_reloc_section (bfd *abfd,
2527 struct elfNN_ia64_link_hash_table *ia64_info,
2528 asection *sec, bfd_boolean create)
800eeca4
JW
2529{
2530 const char *srel_name;
2531 asection *srel;
2532 bfd *dynobj;
2533
2534 srel_name = (bfd_elf_string_from_elf_section
2535 (abfd, elf_elfheader(abfd)->e_shstrndx,
2536 elf_section_data(sec)->rel_hdr.sh_name));
2537 if (srel_name == NULL)
2538 return NULL;
2539
0112cd26 2540 BFD_ASSERT ((CONST_STRNEQ (srel_name, ".rela")
800eeca4
JW
2541 && strcmp (bfd_get_section_name (abfd, sec),
2542 srel_name+5) == 0)
0112cd26 2543 || (CONST_STRNEQ (srel_name, ".rel")
800eeca4
JW
2544 && strcmp (bfd_get_section_name (abfd, sec),
2545 srel_name+4) == 0));
2546
2547 dynobj = ia64_info->root.dynobj;
2548 if (!dynobj)
2549 ia64_info->root.dynobj = dynobj = abfd;
2550
2551 srel = bfd_get_section_by_name (dynobj, srel_name);
2552 if (srel == NULL && create)
2553 {
3496cb2a
L
2554 srel = bfd_make_section_with_flags (dynobj, srel_name,
2555 (SEC_ALLOC | SEC_LOAD
2556 | SEC_HAS_CONTENTS
2557 | SEC_IN_MEMORY
2558 | SEC_LINKER_CREATED
2559 | SEC_READONLY));
800eeca4 2560 if (srel == NULL
5a260b66
L
2561 || !bfd_set_section_alignment (dynobj, srel,
2562 LOG_SECTION_ALIGN))
800eeca4
JW
2563 return NULL;
2564 }
2565
2566 return srel;
2567}
2568
b34976b6 2569static bfd_boolean
ac33696c
L
2570count_dyn_reloc (bfd *abfd, struct elfNN_ia64_dyn_sym_info *dyn_i,
2571 asection *srel, int type, bfd_boolean reltext)
800eeca4 2572{
bbe66d08 2573 struct elfNN_ia64_dyn_reloc_entry *rent;
800eeca4
JW
2574
2575 for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2576 if (rent->srel == srel && rent->type == type)
2577 break;
2578
2579 if (!rent)
2580 {
dc810e39
AM
2581 rent = ((struct elfNN_ia64_dyn_reloc_entry *)
2582 bfd_alloc (abfd, (bfd_size_type) sizeof (*rent)));
800eeca4 2583 if (!rent)
b34976b6 2584 return FALSE;
800eeca4
JW
2585
2586 rent->next = dyn_i->reloc_entries;
2587 rent->srel = srel;
2588 rent->type = type;
2589 rent->count = 0;
2590 dyn_i->reloc_entries = rent;
2591 }
ac33696c 2592 rent->reltext = reltext;
800eeca4
JW
2593 rent->count++;
2594
b34976b6 2595 return TRUE;
800eeca4
JW
2596}
2597
b34976b6 2598static bfd_boolean
eae50df2
L
2599elfNN_ia64_check_relocs (bfd *abfd, struct bfd_link_info *info,
2600 asection *sec,
2601 const Elf_Internal_Rela *relocs)
800eeca4 2602{
bbe66d08 2603 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW
2604 const Elf_Internal_Rela *relend;
2605 Elf_Internal_Shdr *symtab_hdr;
2606 const Elf_Internal_Rela *rel;
21a8f7fa 2607 asection *got, *fptr, *srel, *pltoff;
396a682d
L
2608 enum {
2609 NEED_GOT = 1,
2610 NEED_GOTX = 2,
2611 NEED_FPTR = 4,
2612 NEED_PLTOFF = 8,
2613 NEED_MIN_PLT = 16,
2614 NEED_FULL_PLT = 32,
2615 NEED_DYNREL = 64,
2616 NEED_LTOFF_FPTR = 128,
2617 NEED_TPREL = 256,
2618 NEED_DTPMOD = 512,
2619 NEED_DTPREL = 1024
2620 };
2621 int need_entry;
2622 struct elf_link_hash_entry *h;
2623 unsigned long r_symndx;
2624 bfd_boolean maybe_dynamic;
800eeca4 2625
1049f94e 2626 if (info->relocatable)
b34976b6 2627 return TRUE;
800eeca4
JW
2628
2629 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
bbe66d08 2630 ia64_info = elfNN_ia64_hash_table (info);
800eeca4 2631
21a8f7fa 2632 got = fptr = srel = pltoff = NULL;
800eeca4
JW
2633
2634 relend = relocs + sec->reloc_count;
396a682d
L
2635
2636 /* We scan relocations first to create dynamic relocation arrays. We
2637 modified get_dyn_sym_info to allow fast insertion and support fast
2638 lookup in the next loop. */
2639 for (rel = relocs; rel < relend; ++rel)
2640 {
2641 r_symndx = ELFNN_R_SYM (rel->r_info);
2642 if (r_symndx >= symtab_hdr->sh_info)
2643 {
2644 long indx = r_symndx - symtab_hdr->sh_info;
2645 h = elf_sym_hashes (abfd)[indx];
2646 while (h->root.type == bfd_link_hash_indirect
2647 || h->root.type == bfd_link_hash_warning)
2648 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2649 }
2650 else
2651 h = NULL;
2652
2653 /* We can only get preliminary data on whether a symbol is
2654 locally or externally defined, as not all of the input files
2655 have yet been processed. Do something with what we know, as
2656 this may help reduce memory usage and processing time later. */
2657 maybe_dynamic = (h && ((!info->executable
55255dae 2658 && (!SYMBOLIC_BIND (info, h)
396a682d
L
2659 || info->unresolved_syms_in_shared_libs == RM_IGNORE))
2660 || !h->def_regular
2661 || h->root.type == bfd_link_hash_defweak));
2662
2663 need_entry = 0;
2664 switch (ELFNN_R_TYPE (rel->r_info))
2665 {
2666 case R_IA64_TPREL64MSB:
2667 case R_IA64_TPREL64LSB:
2668 if (info->shared || maybe_dynamic)
2669 need_entry = NEED_DYNREL;
2670 break;
2671
2672 case R_IA64_LTOFF_TPREL22:
2673 need_entry = NEED_TPREL;
2674 if (info->shared)
2675 info->flags |= DF_STATIC_TLS;
2676 break;
2677
2678 case R_IA64_DTPREL32MSB:
2679 case R_IA64_DTPREL32LSB:
2680 case R_IA64_DTPREL64MSB:
2681 case R_IA64_DTPREL64LSB:
2682 if (info->shared || maybe_dynamic)
2683 need_entry = NEED_DYNREL;
2684 break;
2685
2686 case R_IA64_LTOFF_DTPREL22:
2687 need_entry = NEED_DTPREL;
2688 break;
2689
2690 case R_IA64_DTPMOD64MSB:
2691 case R_IA64_DTPMOD64LSB:
2692 if (info->shared || maybe_dynamic)
2693 need_entry = NEED_DYNREL;
2694 break;
2695
2696 case R_IA64_LTOFF_DTPMOD22:
2697 need_entry = NEED_DTPMOD;
2698 break;
2699
2700 case R_IA64_LTOFF_FPTR22:
2701 case R_IA64_LTOFF_FPTR64I:
2702 case R_IA64_LTOFF_FPTR32MSB:
2703 case R_IA64_LTOFF_FPTR32LSB:
2704 case R_IA64_LTOFF_FPTR64MSB:
2705 case R_IA64_LTOFF_FPTR64LSB:
2706 need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR;
2707 break;
2708
2709 case R_IA64_FPTR64I:
2710 case R_IA64_FPTR32MSB:
2711 case R_IA64_FPTR32LSB:
2712 case R_IA64_FPTR64MSB:
2713 case R_IA64_FPTR64LSB:
2714 if (info->shared || h)
2715 need_entry = NEED_FPTR | NEED_DYNREL;
2716 else
2717 need_entry = NEED_FPTR;
2718 break;
2719
2720 case R_IA64_LTOFF22:
2721 case R_IA64_LTOFF64I:
2722 need_entry = NEED_GOT;
2723 break;
2724
2725 case R_IA64_LTOFF22X:
2726 need_entry = NEED_GOTX;
2727 break;
2728
2729 case R_IA64_PLTOFF22:
2730 case R_IA64_PLTOFF64I:
2731 case R_IA64_PLTOFF64MSB:
2732 case R_IA64_PLTOFF64LSB:
2733 need_entry = NEED_PLTOFF;
2734 if (h)
2735 {
2736 if (maybe_dynamic)
2737 need_entry |= NEED_MIN_PLT;
2738 }
2739 else
2740 {
2741 (*info->callbacks->warning)
2742 (info, _("@pltoff reloc against local symbol"), 0,
2743 abfd, 0, (bfd_vma) 0);
2744 }
2745 break;
2746
2747 case R_IA64_PCREL21B:
2748 case R_IA64_PCREL60B:
2749 /* Depending on where this symbol is defined, we may or may not
2750 need a full plt entry. Only skip if we know we'll not need
2751 the entry -- static or symbolic, and the symbol definition
2752 has already been seen. */
2753 if (maybe_dynamic && rel->r_addend == 0)
2754 need_entry = NEED_FULL_PLT;
2755 break;
2756
2757 case R_IA64_IMM14:
2758 case R_IA64_IMM22:
2759 case R_IA64_IMM64:
2760 case R_IA64_DIR32MSB:
2761 case R_IA64_DIR32LSB:
2762 case R_IA64_DIR64MSB:
2763 case R_IA64_DIR64LSB:
2764 /* Shared objects will always need at least a REL relocation. */
2765 if (info->shared || maybe_dynamic)
2766 need_entry = NEED_DYNREL;
2767 break;
2768
2769 case R_IA64_IPLTMSB:
2770 case R_IA64_IPLTLSB:
2771 /* Shared objects will always need at least a REL relocation. */
2772 if (info->shared || maybe_dynamic)
2773 need_entry = NEED_DYNREL;
2774 break;
2775
2776 case R_IA64_PCREL22:
2777 case R_IA64_PCREL64I:
2778 case R_IA64_PCREL32MSB:
2779 case R_IA64_PCREL32LSB:
2780 case R_IA64_PCREL64MSB:
2781 case R_IA64_PCREL64LSB:
2782 if (maybe_dynamic)
2783 need_entry = NEED_DYNREL;
2784 break;
2785 }
2786
2787 if (!need_entry)
2788 continue;
2789
2790 if ((need_entry & NEED_FPTR) != 0
2791 && rel->r_addend)
2792 {
2793 (*info->callbacks->warning)
2794 (info, _("non-zero addend in @fptr reloc"), 0,
2795 abfd, 0, (bfd_vma) 0);
2796 }
2797
2798 if (get_dyn_sym_info (ia64_info, h, abfd, rel, TRUE) == NULL)
2799 return FALSE;
2800 }
2801
2802 /* Now, we only do lookup without insertion, which is very fast
9a2e389a 2803 with the modified get_dyn_sym_info. */
800eeca4
JW
2804 for (rel = relocs; rel < relend; ++rel)
2805 {
bbe66d08 2806 struct elfNN_ia64_dyn_sym_info *dyn_i;
64bf6ae6 2807 int dynrel_type = R_IA64_NONE;
800eeca4 2808
396a682d 2809 r_symndx = ELFNN_R_SYM (rel->r_info);
800eeca4
JW
2810 if (r_symndx >= symtab_hdr->sh_info)
2811 {
2812 /* We're dealing with a global symbol -- find its hash entry
2813 and mark it as being referenced. */
2814 long indx = r_symndx - symtab_hdr->sh_info;
2815 h = elf_sym_hashes (abfd)[indx];
2816 while (h->root.type == bfd_link_hash_indirect
2817 || h->root.type == bfd_link_hash_warning)
2818 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2819
f5385ebf 2820 h->ref_regular = 1;
800eeca4 2821 }
396a682d
L
2822 else
2823 h = NULL;
800eeca4
JW
2824
2825 /* We can only get preliminary data on whether a symbol is
2826 locally or externally defined, as not all of the input files
2827 have yet been processed. Do something with what we know, as
2828 this may help reduce memory usage and processing time later. */
396a682d 2829 maybe_dynamic = (h && ((!info->executable
55255dae 2830 && (!SYMBOLIC_BIND (info, h)
396a682d
L
2831 || info->unresolved_syms_in_shared_libs == RM_IGNORE))
2832 || !h->def_regular
2833 || h->root.type == bfd_link_hash_defweak));
800eeca4
JW
2834
2835 need_entry = 0;
bbe66d08 2836 switch (ELFNN_R_TYPE (rel->r_info))
800eeca4 2837 {
800eeca4
JW
2838 case R_IA64_TPREL64MSB:
2839 case R_IA64_TPREL64LSB:
13ae64f3
JJ
2840 if (info->shared || maybe_dynamic)
2841 need_entry = NEED_DYNREL;
2842 dynrel_type = R_IA64_TPREL64LSB;
2843 if (info->shared)
2844 info->flags |= DF_STATIC_TLS;
2845 break;
2846
2847 case R_IA64_LTOFF_TPREL22:
2848 need_entry = NEED_TPREL;
2849 if (info->shared)
2850 info->flags |= DF_STATIC_TLS;
2851 break;
2852
5a260b66
L
2853 case R_IA64_DTPREL32MSB:
2854 case R_IA64_DTPREL32LSB:
13ae64f3
JJ
2855 case R_IA64_DTPREL64MSB:
2856 case R_IA64_DTPREL64LSB:
2857 if (info->shared || maybe_dynamic)
2858 need_entry = NEED_DYNREL;
5a260b66 2859 dynrel_type = R_IA64_DTPRELNNLSB;
13ae64f3
JJ
2860 break;
2861
2862 case R_IA64_LTOFF_DTPREL22:
2863 need_entry = NEED_DTPREL;
2864 break;
2865
2866 case R_IA64_DTPMOD64MSB:
2867 case R_IA64_DTPMOD64LSB:
2868 if (info->shared || maybe_dynamic)
2869 need_entry = NEED_DYNREL;
2870 dynrel_type = R_IA64_DTPMOD64LSB;
2871 break;
2872
2873 case R_IA64_LTOFF_DTPMOD22:
2874 need_entry = NEED_DTPMOD;
2875 break;
800eeca4
JW
2876
2877 case R_IA64_LTOFF_FPTR22:
2878 case R_IA64_LTOFF_FPTR64I:
a4bd8390
JW
2879 case R_IA64_LTOFF_FPTR32MSB:
2880 case R_IA64_LTOFF_FPTR32LSB:
800eeca4
JW
2881 case R_IA64_LTOFF_FPTR64MSB:
2882 case R_IA64_LTOFF_FPTR64LSB:
2883 need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR;
2884 break;
2885
2886 case R_IA64_FPTR64I:
2887 case R_IA64_FPTR32MSB:
2888 case R_IA64_FPTR32LSB:
2889 case R_IA64_FPTR64MSB:
2890 case R_IA64_FPTR64LSB:
02e6ad56 2891 if (info->shared || h)
800eeca4
JW
2892 need_entry = NEED_FPTR | NEED_DYNREL;
2893 else
2894 need_entry = NEED_FPTR;
5a260b66 2895 dynrel_type = R_IA64_FPTRNNLSB;
800eeca4
JW
2896 break;
2897
2898 case R_IA64_LTOFF22:
800eeca4
JW
2899 case R_IA64_LTOFF64I:
2900 need_entry = NEED_GOT;
2901 break;
2902
2c4c2bc0
RH
2903 case R_IA64_LTOFF22X:
2904 need_entry = NEED_GOTX;
2905 break;
2906
800eeca4
JW
2907 case R_IA64_PLTOFF22:
2908 case R_IA64_PLTOFF64I:
2909 case R_IA64_PLTOFF64MSB:
2910 case R_IA64_PLTOFF64LSB:
2911 need_entry = NEED_PLTOFF;
2912 if (h)
2913 {
2914 if (maybe_dynamic)
2915 need_entry |= NEED_MIN_PLT;
2916 }
800eeca4
JW
2917 break;
2918
2919 case R_IA64_PCREL21B:
748abff6 2920 case R_IA64_PCREL60B:
800eeca4
JW
2921 /* Depending on where this symbol is defined, we may or may not
2922 need a full plt entry. Only skip if we know we'll not need
2923 the entry -- static or symbolic, and the symbol definition
2924 has already been seen. */
2925 if (maybe_dynamic && rel->r_addend == 0)
2926 need_entry = NEED_FULL_PLT;
2927 break;
2928
2929 case R_IA64_IMM14:
2930 case R_IA64_IMM22:
2931 case R_IA64_IMM64:
2932 case R_IA64_DIR32MSB:
2933 case R_IA64_DIR32LSB:
2934 case R_IA64_DIR64MSB:
2935 case R_IA64_DIR64LSB:
2936 /* Shared objects will always need at least a REL relocation. */
02e6ad56 2937 if (info->shared || maybe_dynamic)
800eeca4 2938 need_entry = NEED_DYNREL;
5a260b66 2939 dynrel_type = R_IA64_DIRNNLSB;
800eeca4
JW
2940 break;
2941
18b27f17
RH
2942 case R_IA64_IPLTMSB:
2943 case R_IA64_IPLTLSB:
2944 /* Shared objects will always need at least a REL relocation. */
2945 if (info->shared || maybe_dynamic)
2946 need_entry = NEED_DYNREL;
2947 dynrel_type = R_IA64_IPLTLSB;
2948 break;
2949
748abff6
RH
2950 case R_IA64_PCREL22:
2951 case R_IA64_PCREL64I:
800eeca4
JW
2952 case R_IA64_PCREL32MSB:
2953 case R_IA64_PCREL32LSB:
2954 case R_IA64_PCREL64MSB:
2955 case R_IA64_PCREL64LSB:
2956 if (maybe_dynamic)
2957 need_entry = NEED_DYNREL;
5a260b66 2958 dynrel_type = R_IA64_PCRELNNLSB;
800eeca4
JW
2959 break;
2960 }
2961
2962 if (!need_entry)
2963 continue;
2964
396a682d 2965 dyn_i = get_dyn_sym_info (ia64_info, h, abfd, rel, FALSE);
800eeca4
JW
2966
2967 /* Record whether or not this is a local symbol. */
2968 dyn_i->h = h;
2969
2970 /* Create what's needed. */
2c4c2bc0
RH
2971 if (need_entry & (NEED_GOT | NEED_GOTX | NEED_TPREL
2972 | NEED_DTPMOD | NEED_DTPREL))
800eeca4
JW
2973 {
2974 if (!got)
2975 {
2976 got = get_got (abfd, info, ia64_info);
2977 if (!got)
b34976b6 2978 return FALSE;
800eeca4 2979 }
13ae64f3
JJ
2980 if (need_entry & NEED_GOT)
2981 dyn_i->want_got = 1;
2c4c2bc0
RH
2982 if (need_entry & NEED_GOTX)
2983 dyn_i->want_gotx = 1;
13ae64f3
JJ
2984 if (need_entry & NEED_TPREL)
2985 dyn_i->want_tprel = 1;
2986 if (need_entry & NEED_DTPMOD)
2987 dyn_i->want_dtpmod = 1;
2988 if (need_entry & NEED_DTPREL)
2989 dyn_i->want_dtprel = 1;
800eeca4
JW
2990 }
2991 if (need_entry & NEED_FPTR)
2992 {
2993 if (!fptr)
2994 {
2995 fptr = get_fptr (abfd, info, ia64_info);
2996 if (!fptr)
b34976b6 2997 return FALSE;
800eeca4
JW
2998 }
2999
3000 /* FPTRs for shared libraries are allocated by the dynamic
3001 linker. Make sure this local symbol will appear in the
3002 dynamic symbol table. */
02e6ad56 3003 if (!h && info->shared)
800eeca4 3004 {
c152c796 3005 if (! (bfd_elf_link_record_local_dynamic_symbol
dc810e39 3006 (info, abfd, (long) r_symndx)))
b34976b6 3007 return FALSE;
800eeca4
JW
3008 }
3009
3010 dyn_i->want_fptr = 1;
3011 }
3012 if (need_entry & NEED_LTOFF_FPTR)
3013 dyn_i->want_ltoff_fptr = 1;
3014 if (need_entry & (NEED_MIN_PLT | NEED_FULL_PLT))
3015 {
3016 if (!ia64_info->root.dynobj)
3017 ia64_info->root.dynobj = abfd;
f5385ebf 3018 h->needs_plt = 1;
800eeca4
JW
3019 dyn_i->want_plt = 1;
3020 }
3021 if (need_entry & NEED_FULL_PLT)
3022 dyn_i->want_plt2 = 1;
3023 if (need_entry & NEED_PLTOFF)
21a8f7fa
JW
3024 {
3025 /* This is needed here, in case @pltoff is used in a non-shared
3026 link. */
3027 if (!pltoff)
3028 {
3029 pltoff = get_pltoff (abfd, info, ia64_info);
3030 if (!pltoff)
3031 return FALSE;
3032 }
f12123c0 3033
21a8f7fa
JW
3034 dyn_i->want_pltoff = 1;
3035 }
800eeca4
JW
3036 if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC))
3037 {
3038 if (!srel)
3039 {
b34976b6 3040 srel = get_reloc_section (abfd, ia64_info, sec, TRUE);
800eeca4 3041 if (!srel)
b34976b6 3042 return FALSE;
800eeca4 3043 }
ac33696c 3044 if (!count_dyn_reloc (abfd, dyn_i, srel, dynrel_type,
de9811af 3045 (sec->flags & SEC_READONLY) != 0))
b34976b6 3046 return FALSE;
800eeca4
JW
3047 }
3048 }
3049
b34976b6 3050 return TRUE;
800eeca4
JW
3051}
3052
800eeca4
JW
3053/* For cleanliness, and potentially faster dynamic loading, allocate
3054 external GOT entries first. */
3055
b34976b6 3056static bfd_boolean
eae50df2
L
3057allocate_global_data_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
3058 PTR data)
800eeca4 3059{
bbe66d08 3060 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4 3061
2c4c2bc0 3062 if ((dyn_i->want_got || dyn_i->want_gotx)
800eeca4 3063 && ! dyn_i->want_fptr
986a241f 3064 && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
800eeca4
JW
3065 {
3066 dyn_i->got_offset = x->ofs;
3067 x->ofs += 8;
3068 }
13ae64f3
JJ
3069 if (dyn_i->want_tprel)
3070 {
3071 dyn_i->tprel_offset = x->ofs;
3072 x->ofs += 8;
3073 }
3074 if (dyn_i->want_dtpmod)
3075 {
986a241f 3076 if (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
b3dfd7fe
JJ
3077 {
3078 dyn_i->dtpmod_offset = x->ofs;
3079 x->ofs += 8;
3080 }
3081 else
3082 {
3083 struct elfNN_ia64_link_hash_table *ia64_info;
3084
3085 ia64_info = elfNN_ia64_hash_table (x->info);
3086 if (ia64_info->self_dtpmod_offset == (bfd_vma) -1)
3087 {
3088 ia64_info->self_dtpmod_offset = x->ofs;
3089 x->ofs += 8;
3090 }
3091 dyn_i->dtpmod_offset = ia64_info->self_dtpmod_offset;
3092 }
13ae64f3
JJ
3093 }
3094 if (dyn_i->want_dtprel)
3095 {
3096 dyn_i->dtprel_offset = x->ofs;
3097 x->ofs += 8;
3098 }
b34976b6 3099 return TRUE;
800eeca4
JW
3100}
3101
3102/* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
3103
b34976b6 3104static bfd_boolean
eae50df2
L
3105allocate_global_fptr_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
3106 PTR data)
800eeca4 3107{
bbe66d08 3108 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4
JW
3109
3110 if (dyn_i->want_got
3111 && dyn_i->want_fptr
5a260b66 3112 && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, R_IA64_FPTRNNLSB))
800eeca4
JW
3113 {
3114 dyn_i->got_offset = x->ofs;
3115 x->ofs += 8;
3116 }
b34976b6 3117 return TRUE;
800eeca4
JW
3118}
3119
3120/* Lastly, allocate all the GOT entries for local data. */
3121
b34976b6 3122static bfd_boolean
eae50df2
L
3123allocate_local_got (struct elfNN_ia64_dyn_sym_info *dyn_i,
3124 PTR data)
800eeca4 3125{
bbe66d08 3126 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4 3127
2c4c2bc0 3128 if ((dyn_i->want_got || dyn_i->want_gotx)
986a241f 3129 && !elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
800eeca4
JW
3130 {
3131 dyn_i->got_offset = x->ofs;
3132 x->ofs += 8;
3133 }
b34976b6 3134 return TRUE;
800eeca4
JW
3135}
3136
3137/* Search for the index of a global symbol in it's defining object file. */
3138
dc810e39 3139static long
eae50df2 3140global_sym_index (struct elf_link_hash_entry *h)
800eeca4
JW
3141{
3142 struct elf_link_hash_entry **p;
3143 bfd *obj;
3144
3145 BFD_ASSERT (h->root.type == bfd_link_hash_defined
3146 || h->root.type == bfd_link_hash_defweak);
3147
3148 obj = h->root.u.def.section->owner;
3149 for (p = elf_sym_hashes (obj); *p != h; ++p)
3150 continue;
3151
3152 return p - elf_sym_hashes (obj) + elf_tdata (obj)->symtab_hdr.sh_info;
3153}
3154
3155/* Allocate function descriptors. We can do these for every function
3156 in a main executable that is not exported. */
3157
b34976b6 3158static bfd_boolean
eae50df2 3159allocate_fptr (struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data)
800eeca4 3160{
bbe66d08 3161 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4
JW
3162
3163 if (dyn_i->want_fptr)
3164 {
3165 struct elf_link_hash_entry *h = dyn_i->h;
3e932841 3166
800eeca4
JW
3167 if (h)
3168 while (h->root.type == bfd_link_hash_indirect
3169 || h->root.type == bfd_link_hash_warning)
3170 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3171
02e6ad56
RH
3172 if (!x->info->executable
3173 && (!h
3174 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
1faab634
L
3175 || (h->root.type != bfd_link_hash_undefweak
3176 && h->root.type != bfd_link_hash_undefined)))
800eeca4
JW
3177 {
3178 if (h && h->dynindx == -1)
3179 {
3180 BFD_ASSERT ((h->root.type == bfd_link_hash_defined)
3181 || (h->root.type == bfd_link_hash_defweak));
3182
c152c796 3183 if (!bfd_elf_link_record_local_dynamic_symbol
800eeca4
JW
3184 (x->info, h->root.u.def.section->owner,
3185 global_sym_index (h)))
b34976b6 3186 return FALSE;
800eeca4
JW
3187 }
3188
3189 dyn_i->want_fptr = 0;
3190 }
3191 else if (h == NULL || h->dynindx == -1)
3192 {
3193 dyn_i->fptr_offset = x->ofs;
3194 x->ofs += 16;
3195 }
3196 else
3197 dyn_i->want_fptr = 0;
3198 }
b34976b6 3199 return TRUE;
800eeca4
JW
3200}
3201
3202/* Allocate all the minimal PLT entries. */
3203
b34976b6 3204static bfd_boolean
eae50df2
L
3205allocate_plt_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
3206 PTR data)
800eeca4 3207{
bbe66d08 3208 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4
JW
3209
3210 if (dyn_i->want_plt)
3211 {
3212 struct elf_link_hash_entry *h = dyn_i->h;
3213
3214 if (h)
3215 while (h->root.type == bfd_link_hash_indirect
3216 || h->root.type == bfd_link_hash_warning)
3217 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3218
f5385ebf 3219 /* ??? Versioned symbols seem to lose NEEDS_PLT. */
986a241f 3220 if (elfNN_ia64_dynamic_symbol_p (h, x->info, 0))
800eeca4
JW
3221 {
3222 bfd_size_type offset = x->ofs;
3223 if (offset == 0)
3224 offset = PLT_HEADER_SIZE;
3225 dyn_i->plt_offset = offset;
3226 x->ofs = offset + PLT_MIN_ENTRY_SIZE;
3227
3228 dyn_i->want_pltoff = 1;
3229 }
3230 else
3231 {
3232 dyn_i->want_plt = 0;
3233 dyn_i->want_plt2 = 0;
3234 }
3235 }
b34976b6 3236 return TRUE;
800eeca4
JW
3237}
3238
3239/* Allocate all the full PLT entries. */
3240
b34976b6 3241static bfd_boolean
eae50df2
L
3242allocate_plt2_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
3243 PTR data)
800eeca4 3244{
bbe66d08 3245 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4
JW
3246
3247 if (dyn_i->want_plt2)
3248 {
3249 struct elf_link_hash_entry *h = dyn_i->h;
3250 bfd_size_type ofs = x->ofs;
3251
3252 dyn_i->plt2_offset = ofs;
3253 x->ofs = ofs + PLT_FULL_ENTRY_SIZE;
3254
3255 while (h->root.type == bfd_link_hash_indirect
3256 || h->root.type == bfd_link_hash_warning)
3257 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3258 dyn_i->h->plt.offset = ofs;
3259 }
b34976b6 3260 return TRUE;
800eeca4
JW
3261}
3262
3263/* Allocate all the PLTOFF entries requested by relocations and
3264 plt entries. We can't share space with allocated FPTR entries,
3265 because the latter are not necessarily addressable by the GP.
3266 ??? Relaxation might be able to determine that they are. */
3267
b34976b6 3268static bfd_boolean
eae50df2
L
3269allocate_pltoff_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
3270 PTR data)
800eeca4 3271{
bbe66d08 3272 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4
JW
3273
3274 if (dyn_i->want_pltoff)
3275 {
3276 dyn_i->pltoff_offset = x->ofs;
3277 x->ofs += 16;
3278 }
b34976b6 3279 return TRUE;
800eeca4
JW
3280}
3281
3282/* Allocate dynamic relocations for those symbols that turned out
3283 to be dynamic. */
3284
b34976b6 3285static bfd_boolean
eae50df2
L
3286allocate_dynrel_entries (struct elfNN_ia64_dyn_sym_info *dyn_i,
3287 PTR data)
800eeca4 3288{
bbe66d08
JW
3289 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
3290 struct elfNN_ia64_link_hash_table *ia64_info;
3291 struct elfNN_ia64_dyn_reloc_entry *rent;
ef5aade5 3292 bfd_boolean dynamic_symbol, shared, resolved_zero;
800eeca4 3293
bbe66d08 3294 ia64_info = elfNN_ia64_hash_table (x->info);
986a241f
RH
3295
3296 /* Note that this can't be used in relation to FPTR relocs below. */
3297 dynamic_symbol = elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0);
3298
800eeca4 3299 shared = x->info->shared;
ef5aade5
L
3300 resolved_zero = (dyn_i->h
3301 && ELF_ST_VISIBILITY (dyn_i->h->other)
3302 && dyn_i->h->root.type == bfd_link_hash_undefweak);
800eeca4 3303
4a78a1f4
AS
3304 /* Take care of the GOT and PLT relocations. */
3305
3306 if ((!resolved_zero
3307 && (dynamic_symbol || shared)
3308 && (dyn_i->want_got || dyn_i->want_gotx))
3309 || (dyn_i->want_ltoff_fptr
3310 && dyn_i->h
3311 && dyn_i->h->dynindx != -1))
3312 {
3313 if (!dyn_i->want_ltoff_fptr
3314 || !x->info->pie
3315 || dyn_i->h == NULL
3316 || dyn_i->h->root.type != bfd_link_hash_undefweak)
3317 ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
3318 }
3319 if ((dynamic_symbol || shared) && dyn_i->want_tprel)
3320 ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
3321 if (dynamic_symbol && dyn_i->want_dtpmod)
3322 ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
3323 if (dynamic_symbol && dyn_i->want_dtprel)
3324 ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
3325
3326 if (x->only_got)
3327 return TRUE;
3328
3329 if (ia64_info->rel_fptr_sec && dyn_i->want_fptr)
3330 {
3331 if (dyn_i->h == NULL || dyn_i->h->root.type != bfd_link_hash_undefweak)
3332 ia64_info->rel_fptr_sec->size += sizeof (ElfNN_External_Rela);
3333 }
3334
3335 if (!resolved_zero && dyn_i->want_pltoff)
3336 {
3337 bfd_size_type t = 0;
3338
3339 /* Dynamic symbols get one IPLT relocation. Local symbols in
3340 shared libraries get two REL relocations. Local symbols in
3341 main applications get nothing. */
3342 if (dynamic_symbol)
3343 t = sizeof (ElfNN_External_Rela);
3344 else if (shared)
3345 t = 2 * sizeof (ElfNN_External_Rela);
3346
3347 ia64_info->rel_pltoff_sec->size += t;
3348 }
3349
800eeca4
JW
3350 /* Take care of the normal data relocations. */
3351
3352 for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
3353 {
18b27f17
RH
3354 int count = rent->count;
3355
800eeca4
JW
3356 switch (rent->type)
3357 {
5a260b66 3358 case R_IA64_FPTR32LSB:
800eeca4 3359 case R_IA64_FPTR64LSB:
9203ba99
JJ
3360 /* Allocate one iff !want_fptr and not PIE, which by this point
3361 will be true only if we're actually allocating one statically
3362 in the main executable. Position independent executables
3363 need a relative reloc. */
3364 if (dyn_i->want_fptr && !x->info->pie)
800eeca4
JW
3365 continue;
3366 break;
5a260b66 3367 case R_IA64_PCREL32LSB:
800eeca4
JW
3368 case R_IA64_PCREL64LSB:
3369 if (!dynamic_symbol)
3370 continue;
3371 break;
5a260b66 3372 case R_IA64_DIR32LSB:
800eeca4
JW
3373 case R_IA64_DIR64LSB:
3374 if (!dynamic_symbol && !shared)
3375 continue;
3376 break;
18b27f17
RH
3377 case R_IA64_IPLTLSB:
3378 if (!dynamic_symbol && !shared)
3379 continue;
3380 /* Use two REL relocations for IPLT relocations
3381 against local symbols. */
3382 if (!dynamic_symbol)
3383 count *= 2;
3384 break;
5a260b66 3385 case R_IA64_DTPREL32LSB:
13ae64f3
JJ
3386 case R_IA64_TPREL64LSB:
3387 case R_IA64_DTPREL64LSB:
3388 case R_IA64_DTPMOD64LSB:
3389 break;
18b27f17
RH
3390 default:
3391 abort ();
800eeca4 3392 }
ac33696c
L
3393 if (rent->reltext)
3394 ia64_info->reltext = 1;
eea6121a 3395 rent->srel->size += sizeof (ElfNN_External_Rela) * count;
800eeca4
JW
3396 }
3397
b34976b6 3398 return TRUE;
800eeca4
JW
3399}
3400
b34976b6 3401static bfd_boolean
eae50df2
L
3402elfNN_ia64_adjust_dynamic_symbol (struct bfd_link_info *info ATTRIBUTE_UNUSED,
3403 struct elf_link_hash_entry *h)
800eeca4
JW
3404{
3405 /* ??? Undefined symbols with PLT entries should be re-defined
3406 to be the PLT entry. */
3407
3408 /* If this is a weak symbol, and there is a real definition, the
3409 processor independent code will have arranged for us to see the
3410 real definition first, and we can just use the same value. */
f6e332e6 3411 if (h->u.weakdef != NULL)
800eeca4 3412 {
f6e332e6
AM
3413 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3414 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3415 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3416 h->root.u.def.value = h->u.weakdef->root.u.def.value;
b34976b6 3417 return TRUE;
800eeca4
JW
3418 }
3419
3420 /* If this is a reference to a symbol defined by a dynamic object which
3421 is not a function, we might allocate the symbol in our .dynbss section
3422 and allocate a COPY dynamic relocation.
3423
3424 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
3425 of hackery. */
3426
b34976b6 3427 return TRUE;
800eeca4
JW
3428}
3429
b34976b6 3430static bfd_boolean
eae50df2
L
3431elfNN_ia64_size_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED,
3432 struct bfd_link_info *info)
800eeca4 3433{
bbe66d08
JW
3434 struct elfNN_ia64_allocate_data data;
3435 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW
3436 asection *sec;
3437 bfd *dynobj;
b34976b6 3438 bfd_boolean relplt = FALSE;
800eeca4
JW
3439
3440 dynobj = elf_hash_table(info)->dynobj;
bbe66d08 3441 ia64_info = elfNN_ia64_hash_table (info);
b3dfd7fe 3442 ia64_info->self_dtpmod_offset = (bfd_vma) -1;
800eeca4
JW
3443 BFD_ASSERT(dynobj != NULL);
3444 data.info = info;
3445
3446 /* Set the contents of the .interp section to the interpreter. */
3447 if (ia64_info->root.dynamic_sections_created
36af4a4e 3448 && info->executable)
800eeca4
JW
3449 {
3450 sec = bfd_get_section_by_name (dynobj, ".interp");
3451 BFD_ASSERT (sec != NULL);
02e6ad56 3452 sec->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
eea6121a 3453 sec->size = strlen (ELF_DYNAMIC_INTERPRETER) + 1;
800eeca4
JW
3454 }
3455
800eeca4
JW
3456 /* Allocate the GOT entries. */
3457
3458 if (ia64_info->got_sec)
3459 {
3460 data.ofs = 0;
bbe66d08
JW
3461 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
3462 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
3463 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
eea6121a 3464 ia64_info->got_sec->size = data.ofs;
800eeca4
JW
3465 }
3466
3467 /* Allocate the FPTR entries. */
3468
3469 if (ia64_info->fptr_sec)
3470 {
3471 data.ofs = 0;
bbe66d08 3472 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_fptr, &data);
eea6121a 3473 ia64_info->fptr_sec->size = data.ofs;
800eeca4
JW
3474 }
3475
3476 /* Now that we've seen all of the input files, we can decide which
3477 symbols need plt entries. Allocate the minimal PLT entries first.
b34976b6 3478 We do this even though dynamic_sections_created may be FALSE, because
800eeca4
JW
3479 this has the side-effect of clearing want_plt and want_plt2. */
3480
3481 data.ofs = 0;
bbe66d08 3482 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt_entries, &data);
800eeca4
JW
3483
3484 ia64_info->minplt_entries = 0;
3485 if (data.ofs)
3486 {
3487 ia64_info->minplt_entries
3488 = (data.ofs - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
3489 }
3490
3491 /* Align the pointer for the plt2 entries. */
dc810e39 3492 data.ofs = (data.ofs + 31) & (bfd_vma) -32;
800eeca4 3493
bbe66d08 3494 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt2_entries, &data);
a5a58ba4 3495 if (data.ofs != 0 || ia64_info->root.dynamic_sections_created)
800eeca4 3496 {
a5a58ba4
L
3497 /* FIXME: we always reserve the memory for dynamic linker even if
3498 there are no PLT entries since dynamic linker may assume the
3499 reserved memory always exists. */
3500
800eeca4
JW
3501 BFD_ASSERT (ia64_info->root.dynamic_sections_created);
3502
eea6121a 3503 ia64_info->plt_sec->size = data.ofs;
800eeca4
JW
3504
3505 /* If we've got a .plt, we need some extra memory for the dynamic
3506 linker. We stuff these in .got.plt. */
3507 sec = bfd_get_section_by_name (dynobj, ".got.plt");
eea6121a 3508 sec->size = 8 * PLT_RESERVED_WORDS;
800eeca4
JW
3509 }
3510
3511 /* Allocate the PLTOFF entries. */
3512
3513 if (ia64_info->pltoff_sec)
3514 {
3515 data.ofs = 0;
bbe66d08 3516 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_pltoff_entries, &data);
eea6121a 3517 ia64_info->pltoff_sec->size = data.ofs;
800eeca4
JW
3518 }
3519
3520 if (ia64_info->root.dynamic_sections_created)
3521 {
3522 /* Allocate space for the dynamic relocations that turned out to be
3523 required. */
3524
b3dfd7fe 3525 if (info->shared && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
eea6121a 3526 ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
4a78a1f4 3527 data.only_got = FALSE;
bbe66d08 3528 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries, &data);
800eeca4
JW
3529 }
3530
3531 /* We have now determined the sizes of the various dynamic sections.
3532 Allocate memory for them. */
3533 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
3534 {
b34976b6 3535 bfd_boolean strip;
800eeca4
JW
3536
3537 if (!(sec->flags & SEC_LINKER_CREATED))
3538 continue;
3539
3540 /* If we don't need this section, strip it from the output file.
3541 There were several sections primarily related to dynamic
3542 linking that must be create before the linker maps input
3543 sections to output sections. The linker does that before
3544 bfd_elf_size_dynamic_sections is called, and it is that
3545 function which decides whether anything needs to go into
3546 these sections. */
3547
eea6121a 3548 strip = (sec->size == 0);
800eeca4
JW
3549
3550 if (sec == ia64_info->got_sec)
b34976b6 3551 strip = FALSE;
800eeca4
JW
3552 else if (sec == ia64_info->rel_got_sec)
3553 {
3554 if (strip)
3555 ia64_info->rel_got_sec = NULL;
3556 else
3557 /* We use the reloc_count field as a counter if we need to
3558 copy relocs into the output file. */
3559 sec->reloc_count = 0;
3560 }
3561 else if (sec == ia64_info->fptr_sec)
3562 {
3563 if (strip)
3564 ia64_info->fptr_sec = NULL;
3565 }
55936540
JW
3566 else if (sec == ia64_info->rel_fptr_sec)
3567 {
3568 if (strip)
3569 ia64_info->rel_fptr_sec = NULL;
3570 else
3571 /* We use the reloc_count field as a counter if we need to
3572 copy relocs into the output file. */
3573 sec->reloc_count = 0;
3574 }
800eeca4
JW
3575 else if (sec == ia64_info->plt_sec)
3576 {
3577 if (strip)
3578 ia64_info->plt_sec = NULL;
3579 }
3580 else if (sec == ia64_info->pltoff_sec)
3581 {
3582 if (strip)
3583 ia64_info->pltoff_sec = NULL;
3584 }
3585 else if (sec == ia64_info->rel_pltoff_sec)
3586 {
3587 if (strip)
3588 ia64_info->rel_pltoff_sec = NULL;
3589 else
3590 {
b34976b6 3591 relplt = TRUE;
800eeca4
JW
3592 /* We use the reloc_count field as a counter if we need to
3593 copy relocs into the output file. */
3594 sec->reloc_count = 0;
3595 }
3596 }
3597 else
3598 {
3599 const char *name;
3600
3601 /* It's OK to base decisions on the section name, because none
3602 of the dynobj section names depend upon the input files. */
3603 name = bfd_get_section_name (dynobj, sec);
3604
3605 if (strcmp (name, ".got.plt") == 0)
b34976b6 3606 strip = FALSE;
0112cd26 3607 else if (CONST_STRNEQ (name, ".rel"))
800eeca4
JW
3608 {
3609 if (!strip)
3610 {
800eeca4
JW
3611 /* We use the reloc_count field as a counter if we need to
3612 copy relocs into the output file. */
3613 sec->reloc_count = 0;
3614 }
3615 }
3616 else
3617 continue;
3618 }
3619
3620 if (strip)
8423293d 3621 sec->flags |= SEC_EXCLUDE;
800eeca4
JW
3622 else
3623 {
3624 /* Allocate memory for the section contents. */
eea6121a
AM
3625 sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->size);
3626 if (sec->contents == NULL && sec->size != 0)
b34976b6 3627 return FALSE;
800eeca4
JW
3628 }
3629 }
3630
3631 if (elf_hash_table (info)->dynamic_sections_created)
3632 {
3633 /* Add some entries to the .dynamic section. We fill in the values
3634 later (in finish_dynamic_sections) but we must add the entries now
3635 so that we get the correct size for the .dynamic section. */
3636
36af4a4e 3637 if (info->executable)
800eeca4
JW
3638 {
3639 /* The DT_DEBUG entry is filled in by the dynamic linker and used
3640 by the debugger. */
dc810e39 3641#define add_dynamic_entry(TAG, VAL) \
5a580b3a 3642 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
dc810e39
AM
3643
3644 if (!add_dynamic_entry (DT_DEBUG, 0))
b34976b6 3645 return FALSE;
800eeca4
JW
3646 }
3647
dc810e39 3648 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE, 0))
b34976b6 3649 return FALSE;
dc810e39 3650 if (!add_dynamic_entry (DT_PLTGOT, 0))
b34976b6 3651 return FALSE;
800eeca4
JW
3652
3653 if (relplt)
3654 {
dc810e39
AM
3655 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
3656 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3657 || !add_dynamic_entry (DT_JMPREL, 0))
b34976b6 3658 return FALSE;
800eeca4
JW
3659 }
3660
dc810e39
AM
3661 if (!add_dynamic_entry (DT_RELA, 0)
3662 || !add_dynamic_entry (DT_RELASZ, 0)
3663 || !add_dynamic_entry (DT_RELAENT, sizeof (ElfNN_External_Rela)))
b34976b6 3664 return FALSE;
800eeca4 3665
db6751f2 3666 if (ia64_info->reltext)
800eeca4 3667 {
dc810e39 3668 if (!add_dynamic_entry (DT_TEXTREL, 0))
b34976b6 3669 return FALSE;
d6cf2879 3670 info->flags |= DF_TEXTREL;
800eeca4
JW
3671 }
3672 }
3673
3674 /* ??? Perhaps force __gp local. */
3675
b34976b6 3676 return TRUE;
800eeca4
JW
3677}
3678
3679static bfd_reloc_status_type
eae50df2
L
3680elfNN_ia64_install_value (bfd_byte *hit_addr, bfd_vma v,
3681 unsigned int r_type)
800eeca4
JW
3682{
3683 const struct ia64_operand *op;
3684 int bigendian = 0, shift = 0;
b4677f03
AS
3685 bfd_vma t0, t1, dword;
3686 ia64_insn insn;
800eeca4
JW
3687 enum ia64_opnd opnd;
3688 const char *err;
3689 size_t size = 8;
1e738b87
NC
3690#ifdef BFD_HOST_U_64_BIT
3691 BFD_HOST_U_64_BIT val = (BFD_HOST_U_64_BIT) v;
3692#else
3693 bfd_vma val = v;
3694#endif
800eeca4
JW
3695
3696 opnd = IA64_OPND_NIL;
3697 switch (r_type)
3698 {
3699 case R_IA64_NONE:
3700 case R_IA64_LDXMOV:
3701 return bfd_reloc_ok;
3702
3e932841 3703 /* Instruction relocations. */
800eeca4 3704
13ae64f3
JJ
3705 case R_IA64_IMM14:
3706 case R_IA64_TPREL14:
3707 case R_IA64_DTPREL14:
3708 opnd = IA64_OPND_IMM14;
3709 break;
748abff6 3710
800eeca4
JW
3711 case R_IA64_PCREL21F: opnd = IA64_OPND_TGT25; break;
3712 case R_IA64_PCREL21M: opnd = IA64_OPND_TGT25b; break;
748abff6
RH
3713 case R_IA64_PCREL60B: opnd = IA64_OPND_TGT64; break;
3714 case R_IA64_PCREL21B:
3715 case R_IA64_PCREL21BI:
3716 opnd = IA64_OPND_TGT25c;
3717 break;
800eeca4
JW
3718
3719 case R_IA64_IMM22:
3720 case R_IA64_GPREL22:
3721 case R_IA64_LTOFF22:
3722 case R_IA64_LTOFF22X:
3723 case R_IA64_PLTOFF22:
748abff6 3724 case R_IA64_PCREL22:
800eeca4 3725 case R_IA64_LTOFF_FPTR22:
13ae64f3
JJ
3726 case R_IA64_TPREL22:
3727 case R_IA64_DTPREL22:
3728 case R_IA64_LTOFF_TPREL22:
3729 case R_IA64_LTOFF_DTPMOD22:
3730 case R_IA64_LTOFF_DTPREL22:
800eeca4
JW
3731 opnd = IA64_OPND_IMM22;
3732 break;
3733
3734 case R_IA64_IMM64:
3735 case R_IA64_GPREL64I:
3736 case R_IA64_LTOFF64I:
3737 case R_IA64_PLTOFF64I:
748abff6 3738 case R_IA64_PCREL64I:
800eeca4
JW
3739 case R_IA64_FPTR64I:
3740 case R_IA64_LTOFF_FPTR64I:
13ae64f3
JJ
3741 case R_IA64_TPREL64I:
3742 case R_IA64_DTPREL64I:
800eeca4
JW
3743 opnd = IA64_OPND_IMMU64;
3744 break;
3745
3746 /* Data relocations. */
3747
3748 case R_IA64_DIR32MSB:
3749 case R_IA64_GPREL32MSB:
3750 case R_IA64_FPTR32MSB:
3751 case R_IA64_PCREL32MSB:
a4bd8390 3752 case R_IA64_LTOFF_FPTR32MSB:
800eeca4
JW
3753 case R_IA64_SEGREL32MSB:
3754 case R_IA64_SECREL32MSB:
3755 case R_IA64_LTV32MSB:
13ae64f3 3756 case R_IA64_DTPREL32MSB:
800eeca4
JW
3757 size = 4; bigendian = 1;
3758 break;
3759
3760 case R_IA64_DIR32LSB:
3761 case R_IA64_GPREL32LSB:
3762 case R_IA64_FPTR32LSB:
3763 case R_IA64_PCREL32LSB:
a4bd8390 3764 case R_IA64_LTOFF_FPTR32LSB:
800eeca4
JW
3765 case R_IA64_SEGREL32LSB:
3766 case R_IA64_SECREL32LSB:
3767 case R_IA64_LTV32LSB:
13ae64f3 3768 case R_IA64_DTPREL32LSB:
800eeca4
JW
3769 size = 4; bigendian = 0;
3770 break;
3771
3772 case R_IA64_DIR64MSB:
3773 case R_IA64_GPREL64MSB:
3774 case R_IA64_PLTOFF64MSB:
3775 case R_IA64_FPTR64MSB:
3776 case R_IA64_PCREL64MSB:
3777 case R_IA64_LTOFF_FPTR64MSB:
3778 case R_IA64_SEGREL64MSB:
3779 case R_IA64_SECREL64MSB:
3780 case R_IA64_LTV64MSB:
13ae64f3
JJ
3781 case R_IA64_TPREL64MSB:
3782 case R_IA64_DTPMOD64MSB:
3783 case R_IA64_DTPREL64MSB:
800eeca4
JW
3784 size = 8; bigendian = 1;
3785 break;
3786
3787 case R_IA64_DIR64LSB:
3788 case R_IA64_GPREL64LSB:
3789 case R_IA64_PLTOFF64LSB:
3790 case R_IA64_FPTR64LSB:
3791 case R_IA64_PCREL64LSB:
3792 case R_IA64_LTOFF_FPTR64LSB:
3793 case R_IA64_SEGREL64LSB:
3794 case R_IA64_SECREL64LSB:
3795 case R_IA64_LTV64LSB:
13ae64f3
JJ
3796 case R_IA64_TPREL64LSB:
3797 case R_IA64_DTPMOD64LSB:
3798 case R_IA64_DTPREL64LSB:
800eeca4
JW
3799 size = 8; bigendian = 0;
3800 break;
3801
3802 /* Unsupported / Dynamic relocations. */
800eeca4
JW
3803 default:
3804 return bfd_reloc_notsupported;
3805 }
3806
3807 switch (opnd)
3808 {
3809 case IA64_OPND_IMMU64:
3810 hit_addr -= (long) hit_addr & 0x3;
bbb268c3
JW
3811 t0 = bfd_getl64 (hit_addr);
3812 t1 = bfd_getl64 (hit_addr + 8);
800eeca4
JW
3813
3814 /* tmpl/s: bits 0.. 5 in t0
3815 slot 0: bits 5..45 in t0
3816 slot 1: bits 46..63 in t0, bits 0..22 in t1
3817 slot 2: bits 23..63 in t1 */
3818
3819 /* First, clear the bits that form the 64 bit constant. */
3820 t0 &= ~(0x3ffffLL << 46);
3821 t1 &= ~(0x7fffffLL
3822 | (( (0x07fLL << 13) | (0x1ffLL << 27)
3823 | (0x01fLL << 22) | (0x001LL << 21)
3824 | (0x001LL << 36)) << 23));
3825
3826 t0 |= ((val >> 22) & 0x03ffffLL) << 46; /* 18 lsbs of imm41 */
3827 t1 |= ((val >> 40) & 0x7fffffLL) << 0; /* 23 msbs of imm41 */
3828 t1 |= ( (((val >> 0) & 0x07f) << 13) /* imm7b */
3829 | (((val >> 7) & 0x1ff) << 27) /* imm9d */
3830 | (((val >> 16) & 0x01f) << 22) /* imm5c */
3831 | (((val >> 21) & 0x001) << 21) /* ic */
3832 | (((val >> 63) & 0x001) << 36)) << 23; /* i */
3833
bbb268c3
JW
3834 bfd_putl64 (t0, hit_addr);
3835 bfd_putl64 (t1, hit_addr + 8);
800eeca4
JW
3836 break;
3837
748abff6
RH
3838 case IA64_OPND_TGT64:
3839 hit_addr -= (long) hit_addr & 0x3;
bbb268c3
JW
3840 t0 = bfd_getl64 (hit_addr);
3841 t1 = bfd_getl64 (hit_addr + 8);
748abff6
RH
3842
3843 /* tmpl/s: bits 0.. 5 in t0
3844 slot 0: bits 5..45 in t0
3845 slot 1: bits 46..63 in t0, bits 0..22 in t1
3846 slot 2: bits 23..63 in t1 */
3847
3848 /* First, clear the bits that form the 64 bit constant. */
3849 t0 &= ~(0x3ffffLL << 46);
3850 t1 &= ~(0x7fffffLL
3851 | ((1LL << 36 | 0xfffffLL << 13) << 23));
3852
3853 val >>= 4;
3854 t0 |= ((val >> 20) & 0xffffLL) << 2 << 46; /* 16 lsbs of imm39 */
3855 t1 |= ((val >> 36) & 0x7fffffLL) << 0; /* 23 msbs of imm39 */
3856 t1 |= ((((val >> 0) & 0xfffffLL) << 13) /* imm20b */
3857 | (((val >> 59) & 0x1LL) << 36)) << 23; /* i */
3858
bbb268c3
JW
3859 bfd_putl64 (t0, hit_addr);
3860 bfd_putl64 (t1, hit_addr + 8);
748abff6
RH
3861 break;
3862
800eeca4
JW
3863 default:
3864 switch ((long) hit_addr & 0x3)
3865 {
3866 case 0: shift = 5; break;
3867 case 1: shift = 14; hit_addr += 3; break;
3868 case 2: shift = 23; hit_addr += 6; break;
3e932841 3869 case 3: return bfd_reloc_notsupported; /* shouldn't happen... */
800eeca4 3870 }
bbb268c3 3871 dword = bfd_getl64 (hit_addr);
800eeca4
JW
3872 insn = (dword >> shift) & 0x1ffffffffffLL;
3873
3874 op = elf64_ia64_operands + opnd;
b4677f03 3875 err = (*op->insert) (op, val, &insn);
800eeca4
JW
3876 if (err)
3877 return bfd_reloc_overflow;
3878
3879 dword &= ~(0x1ffffffffffLL << shift);
3880 dword |= (insn << shift);
bbb268c3 3881 bfd_putl64 (dword, hit_addr);
800eeca4
JW
3882 break;
3883
3884 case IA64_OPND_NIL:
3885 /* A data relocation. */
3886 if (bigendian)
3887 if (size == 4)
3888 bfd_putb32 (val, hit_addr);
3889 else
3890 bfd_putb64 (val, hit_addr);
3891 else
3892 if (size == 4)
3893 bfd_putl32 (val, hit_addr);
3894 else
3895 bfd_putl64 (val, hit_addr);
3896 break;
3897 }
3898
3899 return bfd_reloc_ok;
3900}
3901
3902static void
eae50df2
L
3903elfNN_ia64_install_dyn_reloc (bfd *abfd, struct bfd_link_info *info,
3904 asection *sec, asection *srel,
3905 bfd_vma offset, unsigned int type,
3906 long dynindx, bfd_vma addend)
800eeca4
JW
3907{
3908 Elf_Internal_Rela outrel;
947216bf 3909 bfd_byte *loc;
800eeca4 3910
800eeca4 3911 BFD_ASSERT (dynindx != -1);
bbe66d08 3912 outrel.r_info = ELFNN_R_INFO (dynindx, type);
800eeca4 3913 outrel.r_addend = addend;
c629eae0 3914 outrel.r_offset = _bfd_elf_section_offset (abfd, info, sec, offset);
99eb2ac8 3915 if (outrel.r_offset >= (bfd_vma) -2)
800eeca4 3916 {
c629eae0
JJ
3917 /* Run for the hills. We shouldn't be outputting a relocation
3918 for this. So do what everyone else does and output a no-op. */
3919 outrel.r_info = ELFNN_R_INFO (0, R_IA64_NONE);
3920 outrel.r_addend = 0;
3921 outrel.r_offset = 0;
800eeca4 3922 }
99eb2ac8
AM
3923 else
3924 outrel.r_offset += sec->output_section->vma + sec->output_offset;
800eeca4 3925
947216bf
AM
3926 loc = srel->contents;
3927 loc += srel->reloc_count++ * sizeof (ElfNN_External_Rela);
3928 bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
eea6121a 3929 BFD_ASSERT (sizeof (ElfNN_External_Rela) * srel->reloc_count <= srel->size);
800eeca4
JW
3930}
3931
3932/* Store an entry for target address TARGET_ADDR in the linkage table
3933 and return the gp-relative address of the linkage table entry. */
3934
3935static bfd_vma
eae50df2
L
3936set_got_entry (bfd *abfd, struct bfd_link_info *info,
3937 struct elfNN_ia64_dyn_sym_info *dyn_i,
3938 long dynindx, bfd_vma addend, bfd_vma value,
3939 unsigned int dyn_r_type)
800eeca4 3940{
bbe66d08 3941 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4 3942 asection *got_sec;
b34976b6 3943 bfd_boolean done;
13ae64f3 3944 bfd_vma got_offset;
800eeca4 3945
bbe66d08 3946 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW
3947 got_sec = ia64_info->got_sec;
3948
13ae64f3 3949 switch (dyn_r_type)
800eeca4 3950 {
13ae64f3
JJ
3951 case R_IA64_TPREL64LSB:
3952 done = dyn_i->tprel_done;
b34976b6 3953 dyn_i->tprel_done = TRUE;
13ae64f3
JJ
3954 got_offset = dyn_i->tprel_offset;
3955 break;
3956 case R_IA64_DTPMOD64LSB:
b3dfd7fe
JJ
3957 if (dyn_i->dtpmod_offset != ia64_info->self_dtpmod_offset)
3958 {
3959 done = dyn_i->dtpmod_done;
3960 dyn_i->dtpmod_done = TRUE;
3961 }
3962 else
3963 {
3964 done = ia64_info->self_dtpmod_done;
3965 ia64_info->self_dtpmod_done = TRUE;
3966 dynindx = 0;
3967 }
13ae64f3
JJ
3968 got_offset = dyn_i->dtpmod_offset;
3969 break;
5a260b66 3970 case R_IA64_DTPREL32LSB:
13ae64f3
JJ
3971 case R_IA64_DTPREL64LSB:
3972 done = dyn_i->dtprel_done;
b34976b6 3973 dyn_i->dtprel_done = TRUE;
13ae64f3
JJ
3974 got_offset = dyn_i->dtprel_offset;
3975 break;
3976 default:
3977 done = dyn_i->got_done;
b34976b6 3978 dyn_i->got_done = TRUE;
13ae64f3
JJ
3979 got_offset = dyn_i->got_offset;
3980 break;
3981 }
800eeca4 3982
13ae64f3
JJ
3983 BFD_ASSERT ((got_offset & 7) == 0);
3984
3985 if (! done)
3986 {
800eeca4 3987 /* Store the target address in the linkage table entry. */
13ae64f3 3988 bfd_put_64 (abfd, value, got_sec->contents + got_offset);
800eeca4
JW
3989
3990 /* Install a dynamic relocation if needed. */
9203ba99
JJ
3991 if (((info->shared
3992 && (!dyn_i->h
3993 || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
3994 || dyn_i->h->root.type != bfd_link_hash_undefweak)
5a260b66 3995 && dyn_r_type != R_IA64_DTPREL32LSB
9203ba99 3996 && dyn_r_type != R_IA64_DTPREL64LSB)
986a241f 3997 || elfNN_ia64_dynamic_symbol_p (dyn_i->h, info, dyn_r_type)
5a260b66
L
3998 || (dynindx != -1
3999 && (dyn_r_type == R_IA64_FPTR32LSB
4000 || dyn_r_type == R_IA64_FPTR64LSB)))
9203ba99
JJ
4001 && (!dyn_i->want_ltoff_fptr
4002 || !info->pie
4003 || !dyn_i->h
4004 || dyn_i->h->root.type != bfd_link_hash_undefweak))
800eeca4 4005 {
13ae64f3
JJ
4006 if (dynindx == -1
4007 && dyn_r_type != R_IA64_TPREL64LSB
4008 && dyn_r_type != R_IA64_DTPMOD64LSB
5a260b66 4009 && dyn_r_type != R_IA64_DTPREL32LSB
13ae64f3 4010 && dyn_r_type != R_IA64_DTPREL64LSB)
800eeca4 4011 {
5a260b66 4012 dyn_r_type = R_IA64_RELNNLSB;
800eeca4
JW
4013 dynindx = 0;
4014 addend = value;
4015 }
4016
4017 if (bfd_big_endian (abfd))
4018 {
4019 switch (dyn_r_type)
4020 {
5a260b66
L
4021 case R_IA64_REL32LSB:
4022 dyn_r_type = R_IA64_REL32MSB;
4023 break;
4024 case R_IA64_DIR32LSB:
4025 dyn_r_type = R_IA64_DIR32MSB;
4026 break;
4027 case R_IA64_FPTR32LSB:
4028 dyn_r_type = R_IA64_FPTR32MSB;
4029 break;
4030 case R_IA64_DTPREL32LSB:
4031 dyn_r_type = R_IA64_DTPREL32MSB;
4032 break;
800eeca4
JW
4033 case R_IA64_REL64LSB:
4034 dyn_r_type = R_IA64_REL64MSB;
4035 break;
4036 case R_IA64_DIR64LSB:
4037 dyn_r_type = R_IA64_DIR64MSB;
4038 break;
4039 case R_IA64_FPTR64LSB:
4040 dyn_r_type = R_IA64_FPTR64MSB;
4041 break;
13ae64f3
JJ
4042 case R_IA64_TPREL64LSB:
4043 dyn_r_type = R_IA64_TPREL64MSB;
4044 break;
4045 case R_IA64_DTPMOD64LSB:
4046 dyn_r_type = R_IA64_DTPMOD64MSB;
4047 break;
4048 case R_IA64_DTPREL64LSB:
4049 dyn_r_type = R_IA64_DTPREL64MSB;
4050 break;
800eeca4 4051 default:
b34976b6 4052 BFD_ASSERT (FALSE);
800eeca4
JW
4053 break;
4054 }
4055 }
4056
bbe66d08 4057 elfNN_ia64_install_dyn_reloc (abfd, NULL, got_sec,
800eeca4 4058 ia64_info->rel_got_sec,
13ae64f3 4059 got_offset, dyn_r_type,
800eeca4
JW
4060 dynindx, addend);
4061 }
4062 }
4063
4064 /* Return the address of the linkage table entry. */
4065 value = (got_sec->output_section->vma
4066 + got_sec->output_offset
13ae64f3 4067 + got_offset);
800eeca4
JW
4068
4069 return value;
4070}
4071
4072/* Fill in a function descriptor consisting of the function's code
4073 address and its global pointer. Return the descriptor's address. */
4074
4075static bfd_vma
eae50df2
L
4076set_fptr_entry (bfd *abfd, struct bfd_link_info *info,
4077 struct elfNN_ia64_dyn_sym_info *dyn_i,
4078 bfd_vma value)
800eeca4 4079{
bbe66d08 4080 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW
4081 asection *fptr_sec;
4082
bbe66d08 4083 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW
4084 fptr_sec = ia64_info->fptr_sec;
4085
4086 if (!dyn_i->fptr_done)
4087 {
4088 dyn_i->fptr_done = 1;
4089
4090 /* Fill in the function descriptor. */
4091 bfd_put_64 (abfd, value, fptr_sec->contents + dyn_i->fptr_offset);
4092 bfd_put_64 (abfd, _bfd_get_gp_value (abfd),
4093 fptr_sec->contents + dyn_i->fptr_offset + 8);
9203ba99
JJ
4094 if (ia64_info->rel_fptr_sec)
4095 {
4096 Elf_Internal_Rela outrel;
4097 bfd_byte *loc;
4098
4099 if (bfd_little_endian (abfd))
4100 outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTLSB);
4101 else
4102 outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTMSB);
4103 outrel.r_addend = value;
4104 outrel.r_offset = (fptr_sec->output_section->vma
4105 + fptr_sec->output_offset
4106 + dyn_i->fptr_offset);
4107 loc = ia64_info->rel_fptr_sec->contents;
4108 loc += ia64_info->rel_fptr_sec->reloc_count++
4109 * sizeof (ElfNN_External_Rela);
4110 bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
4111 }
800eeca4
JW
4112 }
4113
4114 /* Return the descriptor's address. */
4115 value = (fptr_sec->output_section->vma
4116 + fptr_sec->output_offset
4117 + dyn_i->fptr_offset);
4118
4119 return value;
4120}
4121
4122/* Fill in a PLTOFF entry consisting of the function's code address
4123 and its global pointer. Return the descriptor's address. */
4124
4125static bfd_vma
eae50df2
L
4126set_pltoff_entry (bfd *abfd, struct bfd_link_info *info,
4127 struct elfNN_ia64_dyn_sym_info *dyn_i,
4128 bfd_vma value, bfd_boolean is_plt)
800eeca4 4129{
bbe66d08 4130 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW
4131 asection *pltoff_sec;
4132
bbe66d08 4133 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW
4134 pltoff_sec = ia64_info->pltoff_sec;
4135
4136 /* Don't do anything if this symbol uses a real PLT entry. In
4137 that case, we'll fill this in during finish_dynamic_symbol. */
4138 if ((! dyn_i->want_plt || is_plt)
4139 && !dyn_i->pltoff_done)
4140 {
18b27f17
RH
4141 bfd_vma gp = _bfd_get_gp_value (abfd);
4142
800eeca4
JW
4143 /* Fill in the function descriptor. */
4144 bfd_put_64 (abfd, value, pltoff_sec->contents + dyn_i->pltoff_offset);
18b27f17 4145 bfd_put_64 (abfd, gp, pltoff_sec->contents + dyn_i->pltoff_offset + 8);
800eeca4
JW
4146
4147 /* Install dynamic relocations if needed. */
ef5aade5
L
4148 if (!is_plt
4149 && info->shared
4150 && (!dyn_i->h
4151 || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
4152 || dyn_i->h->root.type != bfd_link_hash_undefweak))
800eeca4
JW
4153 {
4154 unsigned int dyn_r_type;
4155
4156 if (bfd_big_endian (abfd))
5a260b66 4157 dyn_r_type = R_IA64_RELNNMSB;
800eeca4 4158 else
5a260b66 4159 dyn_r_type = R_IA64_RELNNLSB;
800eeca4 4160
bbe66d08 4161 elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
800eeca4
JW
4162 ia64_info->rel_pltoff_sec,
4163 dyn_i->pltoff_offset,
18b27f17 4164 dyn_r_type, 0, value);
bbe66d08 4165 elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
800eeca4 4166 ia64_info->rel_pltoff_sec,
5a260b66 4167 dyn_i->pltoff_offset + ARCH_SIZE / 8,
18b27f17 4168 dyn_r_type, 0, gp);
800eeca4
JW
4169 }
4170
4171 dyn_i->pltoff_done = 1;
4172 }
4173
4174 /* Return the descriptor's address. */
4175 value = (pltoff_sec->output_section->vma
4176 + pltoff_sec->output_offset
4177 + dyn_i->pltoff_offset);
4178
4179 return value;
4180}
4181
13ae64f3
JJ
4182/* Return the base VMA address which should be subtracted from real addresses
4183 when resolving @tprel() relocation.
4184 Main program TLS (whose template starts at PT_TLS p_vaddr)
5a260b66 4185 is assigned offset round(2 * size of pointer, PT_TLS p_align). */
13ae64f3
JJ
4186
4187static bfd_vma
eae50df2 4188elfNN_ia64_tprel_base (struct bfd_link_info *info)
13ae64f3 4189{
e1918d23 4190 asection *tls_sec = elf_hash_table (info)->tls_sec;
5a260b66
L
4191 return tls_sec->vma - align_power ((bfd_vma) ARCH_SIZE / 4,
4192 tls_sec->alignment_power);
13ae64f3
JJ
4193}
4194
4195/* Return the base VMA address which should be subtracted from real addresses
4196 when resolving @dtprel() relocation.
4197 This is PT_TLS segment p_vaddr. */
4198
4199static bfd_vma
eae50df2 4200elfNN_ia64_dtprel_base (struct bfd_link_info *info)
13ae64f3 4201{
e1918d23 4202 return elf_hash_table (info)->tls_sec->vma;
13ae64f3
JJ
4203}
4204
f3b6f7c3 4205/* Called through qsort to sort the .IA_64.unwind section during a
bbe66d08 4206 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
f3b6f7c3
RH
4207 to the output bfd so we can do proper endianness frobbing. */
4208
bbe66d08 4209static bfd *elfNN_ia64_unwind_entry_compare_bfd;
f3b6f7c3
RH
4210
4211static int
eae50df2 4212elfNN_ia64_unwind_entry_compare (const PTR a, const PTR b)
f3b6f7c3
RH
4213{
4214 bfd_vma av, bv;
4215
bbe66d08
JW
4216 av = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, a);
4217 bv = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, b);
f3b6f7c3
RH
4218
4219 return (av < bv ? -1 : av > bv ? 1 : 0);
4220}
4221
2c4c2bc0 4222/* Make sure we've got ourselves a nice fat __gp value. */
b34976b6 4223static bfd_boolean
eae50df2 4224elfNN_ia64_choose_gp (bfd *abfd, struct bfd_link_info *info)
800eeca4 4225{
2c4c2bc0
RH
4226 bfd_vma min_vma = (bfd_vma) -1, max_vma = 0;
4227 bfd_vma min_short_vma = min_vma, max_short_vma = 0;
4228 struct elf_link_hash_entry *gp;
4229 bfd_vma gp_val;
4230 asection *os;
bbe66d08 4231 struct elfNN_ia64_link_hash_table *ia64_info;
9a951beb 4232
bbe66d08 4233 ia64_info = elfNN_ia64_hash_table (info);
800eeca4 4234
2c4c2bc0
RH
4235 /* Find the min and max vma of all sections marked short. Also collect
4236 min and max vma of any type, for use in selecting a nice gp. */
4237 for (os = abfd->sections; os ; os = os->next)
800eeca4 4238 {
2c4c2bc0 4239 bfd_vma lo, hi;
800eeca4 4240
2c4c2bc0
RH
4241 if ((os->flags & SEC_ALLOC) == 0)
4242 continue;
4243
4244 lo = os->vma;
f72c3e6b 4245 hi = os->vma + (os->rawsize ? os->rawsize : os->size);
2c4c2bc0
RH
4246 if (hi < lo)
4247 hi = (bfd_vma) -1;
4248
4249 if (min_vma > lo)
4250 min_vma = lo;
4251 if (max_vma < hi)
4252 max_vma = hi;
4253 if (os->flags & SEC_SMALL_DATA)
800eeca4 4254 {
2c4c2bc0
RH
4255 if (min_short_vma > lo)
4256 min_short_vma = lo;
4257 if (max_short_vma < hi)
4258 max_short_vma = hi;
4259 }
4260 }
800eeca4 4261
2c4c2bc0
RH
4262 /* See if the user wants to force a value. */
4263 gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
4264 FALSE, FALSE);
800eeca4 4265
2c4c2bc0
RH
4266 if (gp
4267 && (gp->root.type == bfd_link_hash_defined
4268 || gp->root.type == bfd_link_hash_defweak))
4269 {
4270 asection *gp_sec = gp->root.u.def.section;
4271 gp_val = (gp->root.u.def.value
4272 + gp_sec->output_section->vma
4273 + gp_sec->output_offset);
4274 }
4275 else
4276 {
4277 /* Pick a sensible value. */
800eeca4 4278
2c4c2bc0
RH
4279 asection *got_sec = ia64_info->got_sec;
4280
4281 /* Start with just the address of the .got. */
4282 if (got_sec)
4283 gp_val = got_sec->output_section->vma;
4284 else if (max_short_vma != 0)
4285 gp_val = min_short_vma;
6d2cf7d8 4286 else if (max_vma - min_vma < 0x200000)
2c4c2bc0 4287 gp_val = min_vma;
6d2cf7d8
L
4288 else
4289 gp_val = max_vma - 0x200000 + 8;
2c4c2bc0
RH
4290
4291 /* If it is possible to address the entire image, but we
4292 don't with the choice above, adjust. */
4293 if (max_vma - min_vma < 0x400000
6d2cf7d8
L
4294 && (max_vma - gp_val >= 0x200000
4295 || gp_val - min_vma > 0x200000))
2c4c2bc0
RH
4296 gp_val = min_vma + 0x200000;
4297 else if (max_short_vma != 0)
4298 {
4299 /* If we don't cover all the short data, adjust. */
4300 if (max_short_vma - gp_val >= 0x200000)
4301 gp_val = min_short_vma + 0x200000;
4302
4303 /* If we're addressing stuff past the end, adjust back. */
4304 if (gp_val > max_vma)
4305 gp_val = max_vma - 0x200000 + 8;
800eeca4 4306 }
2c4c2bc0 4307 }
800eeca4 4308
2c4c2bc0
RH
4309 /* Validate whether all SHF_IA_64_SHORT sections are within
4310 range of the chosen GP. */
800eeca4 4311
2c4c2bc0
RH
4312 if (max_short_vma != 0)
4313 {
4314 if (max_short_vma - min_short_vma >= 0x400000)
800eeca4 4315 {
2c4c2bc0
RH
4316 (*_bfd_error_handler)
4317 (_("%s: short data segment overflowed (0x%lx >= 0x400000)"),
4318 bfd_get_filename (abfd),
4319 (unsigned long) (max_short_vma - min_short_vma));
4320 return FALSE;
800eeca4 4321 }
2c4c2bc0
RH
4322 else if ((gp_val > min_short_vma
4323 && gp_val - min_short_vma > 0x200000)
4324 || (gp_val < max_short_vma
4325 && max_short_vma - gp_val >= 0x200000))
800eeca4 4326 {
2c4c2bc0
RH
4327 (*_bfd_error_handler)
4328 (_("%s: __gp does not cover short data segment"),
4329 bfd_get_filename (abfd));
4330 return FALSE;
4331 }
4332 }
800eeca4 4333
2c4c2bc0 4334 _bfd_set_gp_value (abfd, gp_val);
800eeca4 4335
2c4c2bc0
RH
4336 return TRUE;
4337}
800eeca4 4338
2c4c2bc0 4339static bfd_boolean
eae50df2 4340elfNN_ia64_final_link (bfd *abfd, struct bfd_link_info *info)
2c4c2bc0
RH
4341{
4342 struct elfNN_ia64_link_hash_table *ia64_info;
4343 asection *unwind_output_sec;
800eeca4 4344
2c4c2bc0 4345 ia64_info = elfNN_ia64_hash_table (info);
800eeca4 4346
2c4c2bc0 4347 /* Make sure we've got ourselves a nice fat __gp value. */
1049f94e 4348 if (!info->relocatable)
2c4c2bc0 4349 {
a38a2e96 4350 bfd_vma gp_val;
2c4c2bc0
RH
4351 struct elf_link_hash_entry *gp;
4352
a38a2e96
L
4353 /* We assume after gp is set, section size will only decrease. We
4354 need to adjust gp for it. */
4355 _bfd_set_gp_value (abfd, 0);
4356 if (! elfNN_ia64_choose_gp (abfd, info))
4357 return FALSE;
4358 gp_val = _bfd_get_gp_value (abfd);
800eeca4 4359
2c4c2bc0
RH
4360 gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
4361 FALSE, FALSE);
b4adccfd
RH
4362 if (gp)
4363 {
4364 gp->root.type = bfd_link_hash_defined;
4365 gp->root.u.def.value = gp_val;
4366 gp->root.u.def.section = bfd_abs_section_ptr;
4367 }
800eeca4
JW
4368 }
4369
f3b6f7c3 4370 /* If we're producing a final executable, we need to sort the contents
9a951beb
RH
4371 of the .IA_64.unwind section. Force this section to be relocated
4372 into memory rather than written immediately to the output file. */
4373 unwind_output_sec = NULL;
1049f94e 4374 if (!info->relocatable)
f3b6f7c3
RH
4375 {
4376 asection *s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind);
4377 if (s)
4378 {
9a951beb
RH
4379 unwind_output_sec = s->output_section;
4380 unwind_output_sec->contents
eea6121a 4381 = bfd_malloc (unwind_output_sec->size);
9a951beb 4382 if (unwind_output_sec->contents == NULL)
b34976b6 4383 return FALSE;
9a951beb
RH
4384 }
4385 }
f3b6f7c3 4386
9a951beb 4387 /* Invoke the regular ELF backend linker to do all the work. */
c152c796 4388 if (!bfd_elf_final_link (abfd, info))
b34976b6 4389 return FALSE;
f3b6f7c3 4390
9a951beb
RH
4391 if (unwind_output_sec)
4392 {
4393 elfNN_ia64_unwind_entry_compare_bfd = abfd;
dc810e39 4394 qsort (unwind_output_sec->contents,
eea6121a 4395 (size_t) (unwind_output_sec->size / 24),
dc810e39
AM
4396 24,
4397 elfNN_ia64_unwind_entry_compare);
9a951beb
RH
4398
4399 if (! bfd_set_section_contents (abfd, unwind_output_sec,
dc810e39 4400 unwind_output_sec->contents, (bfd_vma) 0,
eea6121a 4401 unwind_output_sec->size))
b34976b6 4402 return FALSE;
f3b6f7c3
RH
4403 }
4404
b34976b6 4405 return TRUE;
800eeca4
JW
4406}
4407
b34976b6 4408static bfd_boolean
eae50df2
L
4409elfNN_ia64_relocate_section (bfd *output_bfd,
4410 struct bfd_link_info *info,
4411 bfd *input_bfd,
4412 asection *input_section,
4413 bfd_byte *contents,
4414 Elf_Internal_Rela *relocs,
4415 Elf_Internal_Sym *local_syms,
4416 asection **local_sections)
800eeca4 4417{
bbe66d08 4418 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW
4419 Elf_Internal_Shdr *symtab_hdr;
4420 Elf_Internal_Rela *rel;
4421 Elf_Internal_Rela *relend;
4422 asection *srel;
b34976b6 4423 bfd_boolean ret_val = TRUE; /* for non-fatal errors */
800eeca4
JW
4424 bfd_vma gp_val;
4425
4426 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
bbe66d08 4427 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW
4428
4429 /* Infect various flags from the input section to the output section. */
1049f94e 4430 if (info->relocatable)
800eeca4
JW
4431 {
4432 bfd_vma flags;
4433
4434 flags = elf_section_data(input_section)->this_hdr.sh_flags;
4435 flags &= SHF_IA_64_NORECOV;
4436
4437 elf_section_data(input_section->output_section)
4438 ->this_hdr.sh_flags |= flags;
4439 }
4440
4441 gp_val = _bfd_get_gp_value (output_bfd);
b34976b6 4442 srel = get_reloc_section (input_bfd, ia64_info, input_section, FALSE);
800eeca4
JW
4443
4444 rel = relocs;
4445 relend = relocs + input_section->reloc_count;
4446 for (; rel < relend; ++rel)
4447 {
4448 struct elf_link_hash_entry *h;
bbe66d08 4449 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW
4450 bfd_reloc_status_type r;
4451 reloc_howto_type *howto;
4452 unsigned long r_symndx;
4453 Elf_Internal_Sym *sym;
4454 unsigned int r_type;
4455 bfd_vma value;
4456 asection *sym_sec;
4457 bfd_byte *hit_addr;
b34976b6
AM
4458 bfd_boolean dynamic_symbol_p;
4459 bfd_boolean undef_weak_ref;
800eeca4 4460
bbe66d08 4461 r_type = ELFNN_R_TYPE (rel->r_info);
800eeca4
JW
4462 if (r_type > R_IA64_MAX_RELOC_CODE)
4463 {
4464 (*_bfd_error_handler)
d003868e
AM
4465 (_("%B: unknown relocation type %d"),
4466 input_bfd, (int) r_type);
800eeca4 4467 bfd_set_error (bfd_error_bad_value);
b34976b6 4468 ret_val = FALSE;
800eeca4
JW
4469 continue;
4470 }
b491616a 4471
800eeca4 4472 howto = lookup_howto (r_type);
bbe66d08 4473 r_symndx = ELFNN_R_SYM (rel->r_info);
800eeca4
JW
4474 h = NULL;
4475 sym = NULL;
4476 sym_sec = NULL;
b34976b6 4477 undef_weak_ref = FALSE;
800eeca4
JW
4478
4479 if (r_symndx < symtab_hdr->sh_info)
4480 {
4481 /* Reloc against local symbol. */
8517fae7 4482 asection *msec;
800eeca4
JW
4483 sym = local_syms + r_symndx;
4484 sym_sec = local_sections[r_symndx];
8517fae7
AM
4485 msec = sym_sec;
4486 value = _bfd_elf_rela_local_sym (output_bfd, sym, &msec, rel);
ab96bf03
AM
4487 if (!info->relocatable
4488 && (sym_sec->flags & SEC_MERGE) != 0
f7460f5f 4489 && ELF_ST_TYPE (sym->st_info) == STT_SECTION
68bfbfcc 4490 && sym_sec->sec_info_type == ELF_INFO_TYPE_MERGE)
f7460f5f
JJ
4491 {
4492 struct elfNN_ia64_local_hash_entry *loc_h;
b34976b6
AM
4493
4494 loc_h = get_local_sym_hash (ia64_info, input_bfd, rel, FALSE);
f7460f5f
JJ
4495 if (loc_h && ! loc_h->sec_merge_done)
4496 {
4497 struct elfNN_ia64_dyn_sym_info *dynent;
396a682d 4498 unsigned int count;
f7460f5f 4499
396a682d
L
4500 for (count = loc_h->count, dynent = loc_h->info;
4501 count != 0;
4502 count--, dynent++)
f7460f5f
JJ
4503 {
4504 msec = sym_sec;
4505 dynent->addend =
4506 _bfd_merged_section_offset (output_bfd, &msec,
4507 elf_section_data (msec)->
65765700 4508 sec_info,
f7460f5f 4509 sym->st_value
753731ee 4510 + dynent->addend);
f7460f5f
JJ
4511 dynent->addend -= sym->st_value;
4512 dynent->addend += msec->output_section->vma
4513 + msec->output_offset
4514 - sym_sec->output_section->vma
4515 - sym_sec->output_offset;
4516 }
293a0124
L
4517
4518 /* We may have introduced duplicated entries. We need
4519 to remove them properly. */
4520 count = sort_dyn_sym_info (loc_h->info, loc_h->count);
4521 if (count != loc_h->count)
4522 {
4523 loc_h->count = count;
4524 loc_h->sorted_count = count;
4525 }
396a682d 4526
f7460f5f
JJ
4527 loc_h->sec_merge_done = 1;
4528 }
4529 }
800eeca4
JW
4530 }
4531 else
4532 {
560e09e9
NC
4533 bfd_boolean unresolved_reloc;
4534 bfd_boolean warned;
b2a8e766 4535 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
800eeca4 4536
b2a8e766
AM
4537 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
4538 r_symndx, symtab_hdr, sym_hashes,
4539 h, sym_sec, value,
4540 unresolved_reloc, warned);
800eeca4 4541
560e09e9 4542 if (h->root.type == bfd_link_hash_undefweak)
b34976b6 4543 undef_weak_ref = TRUE;
560e09e9
NC
4544 else if (warned)
4545 continue;
800eeca4
JW
4546 }
4547
ab96bf03
AM
4548 /* For relocs against symbols from removed linkonce sections,
4549 or sections discarded by a linker script, we just want the
4550 section contents zeroed. Avoid any special processing. */
4551 if (sym_sec != NULL && elf_discarded_section (sym_sec))
4552 {
4553 _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
4554 rel->r_info = 0;
4555 rel->r_addend = 0;
4556 continue;
4557 }
4558
4559 if (info->relocatable)
4560 continue;
4561
800eeca4
JW
4562 hit_addr = contents + rel->r_offset;
4563 value += rel->r_addend;
986a241f 4564 dynamic_symbol_p = elfNN_ia64_dynamic_symbol_p (h, info, r_type);
800eeca4
JW
4565
4566 switch (r_type)
4567 {
4568 case R_IA64_NONE:
4569 case R_IA64_LDXMOV:
4570 continue;
4571
4572 case R_IA64_IMM14:
4573 case R_IA64_IMM22:
4574 case R_IA64_IMM64:
4575 case R_IA64_DIR32MSB:
4576 case R_IA64_DIR32LSB:
4577 case R_IA64_DIR64MSB:
4578 case R_IA64_DIR64LSB:
4579 /* Install a dynamic relocation for this reloc. */
02e6ad56 4580 if ((dynamic_symbol_p || info->shared)
ec338859 4581 && r_symndx != 0
800eeca4
JW
4582 && (input_section->flags & SEC_ALLOC) != 0)
4583 {
4584 unsigned int dyn_r_type;
4585 long dynindx;
18b27f17 4586 bfd_vma addend;
800eeca4
JW
4587
4588 BFD_ASSERT (srel != NULL);
4589
838e70c5
L
4590 switch (r_type)
4591 {
4592 case R_IA64_IMM14:
4593 case R_IA64_IMM22:
4594 case R_IA64_IMM64:
4595 /* ??? People shouldn't be doing non-pic code in
4596 shared libraries nor dynamic executables. */
4597 (*_bfd_error_handler)
d003868e
AM
4598 (_("%B: non-pic code with imm relocation against dynamic symbol `%s'"),
4599 input_bfd,
26c61ae5
L
4600 h ? h->root.root.string
4601 : bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4602 sym_sec));
838e70c5
L
4603 ret_val = FALSE;
4604 continue;
4605
4606 default:
4607 break;
4608 }
4609
800eeca4
JW
4610 /* If we don't need dynamic symbol lookup, find a
4611 matching RELATIVE relocation. */
4612 dyn_r_type = r_type;
986a241f 4613 if (dynamic_symbol_p)
18b27f17
RH
4614 {
4615 dynindx = h->dynindx;
4616 addend = rel->r_addend;
4617 value = 0;
4618 }
800eeca4
JW
4619 else
4620 {
4621 switch (r_type)
4622 {
4623 case R_IA64_DIR32MSB:
4624 dyn_r_type = R_IA64_REL32MSB;
4625 break;
4626 case R_IA64_DIR32LSB:
4627 dyn_r_type = R_IA64_REL32LSB;
4628 break;
4629 case R_IA64_DIR64MSB:
4630 dyn_r_type = R_IA64_REL64MSB;
4631 break;
4632 case R_IA64_DIR64LSB:
4633 dyn_r_type = R_IA64_REL64LSB;
4634 break;
4635
4636 default:
838e70c5 4637 break;
800eeca4
JW
4638 }
4639 dynindx = 0;
18b27f17 4640 addend = value;
800eeca4
JW
4641 }
4642
bbe66d08 4643 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
800eeca4 4644 srel, rel->r_offset, dyn_r_type,
18b27f17 4645 dynindx, addend);
800eeca4 4646 }
ae9a127f 4647 /* Fall through. */
800eeca4
JW
4648
4649 case R_IA64_LTV32MSB:
4650 case R_IA64_LTV32LSB:
4651 case R_IA64_LTV64MSB:
4652 case R_IA64_LTV64LSB:
bbb268c3 4653 r = elfNN_ia64_install_value (hit_addr, value, r_type);
800eeca4
JW
4654 break;
4655
4656 case R_IA64_GPREL22:
4657 case R_IA64_GPREL64I:
4658 case R_IA64_GPREL32MSB:
4659 case R_IA64_GPREL32LSB:
4660 case R_IA64_GPREL64MSB:
4661 case R_IA64_GPREL64LSB:
4662 if (dynamic_symbol_p)
4663 {
4664 (*_bfd_error_handler)
d003868e 4665 (_("%B: @gprel relocation against dynamic symbol %s"),
26c61ae5
L
4666 input_bfd,
4667 h ? h->root.root.string
4668 : bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4669 sym_sec));
b34976b6 4670 ret_val = FALSE;
800eeca4
JW
4671 continue;
4672 }
4673 value -= gp_val;
bbb268c3 4674 r = elfNN_ia64_install_value (hit_addr, value, r_type);
800eeca4
JW
4675 break;
4676
4677 case R_IA64_LTOFF22:
4678 case R_IA64_LTOFF22X:
4679 case R_IA64_LTOFF64I:
b34976b6 4680 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
800eeca4 4681 value = set_got_entry (input_bfd, info, dyn_i, (h ? h->dynindx : -1),
5a260b66 4682 rel->r_addend, value, R_IA64_DIRNNLSB);
800eeca4 4683 value -= gp_val;
bbb268c3 4684 r = elfNN_ia64_install_value (hit_addr, value, r_type);
800eeca4
JW
4685 break;
4686
4687 case R_IA64_PLTOFF22:
4688 case R_IA64_PLTOFF64I:
4689 case R_IA64_PLTOFF64MSB:
4690 case R_IA64_PLTOFF64LSB:
b34976b6
AM
4691 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4692 value = set_pltoff_entry (output_bfd, info, dyn_i, value, FALSE);
800eeca4 4693 value -= gp_val;
bbb268c3 4694 r = elfNN_ia64_install_value (hit_addr, value, r_type);
800eeca4
JW
4695 break;
4696
4697 case R_IA64_FPTR64I:
4698 case R_IA64_FPTR32MSB:
4699 case R_IA64_FPTR32LSB:
4700 case R_IA64_FPTR64MSB:
4701 case R_IA64_FPTR64LSB:
b34976b6 4702 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
800eeca4
JW
4703 if (dyn_i->want_fptr)
4704 {
4705 if (!undef_weak_ref)
4706 value = set_fptr_entry (output_bfd, info, dyn_i, value);
4707 }
9203ba99 4708 if (!dyn_i->want_fptr || info->pie)
800eeca4
JW
4709 {
4710 long dynindx;
9203ba99
JJ
4711 unsigned int dyn_r_type = r_type;
4712 bfd_vma addend = rel->r_addend;
800eeca4
JW
4713
4714 /* Otherwise, we expect the dynamic linker to create
4715 the entry. */
4716
9203ba99
JJ
4717 if (dyn_i->want_fptr)
4718 {
4719 if (r_type == R_IA64_FPTR64I)
4720 {
4721 /* We can't represent this without a dynamic symbol.
4722 Adjust the relocation to be against an output
4723 section symbol, which are always present in the
4724 dynamic symbol table. */
4725 /* ??? People shouldn't be doing non-pic code in
4726 shared libraries. Hork. */
4727 (*_bfd_error_handler)
d003868e
AM
4728 (_("%B: linking non-pic code in a position independent executable"),
4729 input_bfd);
9203ba99
JJ
4730 ret_val = FALSE;
4731 continue;
4732 }
4733 dynindx = 0;
4734 addend = value;
5a260b66 4735 dyn_r_type = r_type + R_IA64_RELNNLSB - R_IA64_FPTRNNLSB;
9203ba99
JJ
4736 }
4737 else if (h)
800eeca4
JW
4738 {
4739 if (h->dynindx != -1)
4740 dynindx = h->dynindx;
4741 else
4742 dynindx = (_bfd_elf_link_lookup_local_dynindx
4743 (info, h->root.u.def.section->owner,
4744 global_sym_index (h)));
9203ba99 4745 value = 0;
800eeca4
JW
4746 }
4747 else
4748 {
4749 dynindx = (_bfd_elf_link_lookup_local_dynindx
dc810e39 4750 (info, input_bfd, (long) r_symndx));
9203ba99 4751 value = 0;
800eeca4
JW
4752 }
4753
bbe66d08 4754 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
9203ba99
JJ
4755 srel, rel->r_offset, dyn_r_type,
4756 dynindx, addend);
800eeca4
JW
4757 }
4758
bbb268c3 4759 r = elfNN_ia64_install_value (hit_addr, value, r_type);
800eeca4
JW
4760 break;
4761
4762 case R_IA64_LTOFF_FPTR22:
4763 case R_IA64_LTOFF_FPTR64I:
a4bd8390
JW
4764 case R_IA64_LTOFF_FPTR32MSB:
4765 case R_IA64_LTOFF_FPTR32LSB:
800eeca4
JW
4766 case R_IA64_LTOFF_FPTR64MSB:
4767 case R_IA64_LTOFF_FPTR64LSB:
4768 {
4769 long dynindx;
4770
b34976b6 4771 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
800eeca4
JW
4772 if (dyn_i->want_fptr)
4773 {
f12123c0 4774 BFD_ASSERT (h == NULL || h->dynindx == -1);
800eeca4
JW
4775 if (!undef_weak_ref)
4776 value = set_fptr_entry (output_bfd, info, dyn_i, value);
4777 dynindx = -1;
4778 }
4779 else
4780 {
4781 /* Otherwise, we expect the dynamic linker to create
4782 the entry. */
4783 if (h)
4784 {
4785 if (h->dynindx != -1)
4786 dynindx = h->dynindx;
4787 else
4788 dynindx = (_bfd_elf_link_lookup_local_dynindx
4789 (info, h->root.u.def.section->owner,
4790 global_sym_index (h)));
4791 }
4792 else
4793 dynindx = (_bfd_elf_link_lookup_local_dynindx
dc810e39 4794 (info, input_bfd, (long) r_symndx));
800eeca4
JW
4795 value = 0;
4796 }
4797
4798 value = set_got_entry (output_bfd, info, dyn_i, dynindx,
5a260b66 4799 rel->r_addend, value, R_IA64_FPTRNNLSB);
800eeca4 4800 value -= gp_val;
bbb268c3 4801 r = elfNN_ia64_install_value (hit_addr, value, r_type);
800eeca4
JW
4802 }
4803 break;
4804
4805 case R_IA64_PCREL32MSB:
4806 case R_IA64_PCREL32LSB:
4807 case R_IA64_PCREL64MSB:
4808 case R_IA64_PCREL64LSB:
4809 /* Install a dynamic relocation for this reloc. */
02e6ad56 4810 if (dynamic_symbol_p && r_symndx != 0)
800eeca4
JW
4811 {
4812 BFD_ASSERT (srel != NULL);
4813
bbe66d08 4814 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
800eeca4
JW
4815 srel, rel->r_offset, r_type,
4816 h->dynindx, rel->r_addend);
4817 }
4818 goto finish_pcrel;
4819
800eeca4 4820 case R_IA64_PCREL21B:
748abff6 4821 case R_IA64_PCREL60B:
800eeca4 4822 /* We should have created a PLT entry for any dynamic symbol. */
800eeca4
JW
4823 dyn_i = NULL;
4824 if (h)
b34976b6 4825 dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
800eeca4
JW
4826
4827 if (dyn_i && dyn_i->want_plt2)
4828 {
4829 /* Should have caught this earlier. */
4830 BFD_ASSERT (rel->r_addend == 0);
4831
4832 value = (ia64_info->plt_sec->output_section->vma
4833 + ia64_info->plt_sec->output_offset
4834 + dyn_i->plt2_offset);
4835 }
4836 else
4837 {
4838 /* Since there's no PLT entry, Validate that this is
4839 locally defined. */
4840 BFD_ASSERT (undef_weak_ref || sym_sec->output_section != NULL);
4841
4842 /* If the symbol is undef_weak, we shouldn't be trying
4843 to call it. There's every chance that we'd wind up
4844 with an out-of-range fixup here. Don't bother setting
4845 any value at all. */
4846 if (undef_weak_ref)
4847 continue;
4848 }
4849 goto finish_pcrel;
4850
2f9bd3f6
RH
4851 case R_IA64_PCREL21BI:
4852 case R_IA64_PCREL21F:
4853 case R_IA64_PCREL21M:
748abff6
RH
4854 case R_IA64_PCREL22:
4855 case R_IA64_PCREL64I:
2f9bd3f6
RH
4856 /* The PCREL21BI reloc is specifically not intended for use with
4857 dynamic relocs. PCREL21F and PCREL21M are used for speculation
f12123c0 4858 fixup code, and thus probably ought not be dynamic. The
2f9bd3f6
RH
4859 PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4860 if (dynamic_symbol_p)
4861 {
4862 const char *msg;
4863
4864 if (r_type == R_IA64_PCREL21BI)
d003868e 4865 msg = _("%B: @internal branch to dynamic symbol %s");
2f9bd3f6 4866 else if (r_type == R_IA64_PCREL21F || r_type == R_IA64_PCREL21M)
d003868e 4867 msg = _("%B: speculation fixup to dynamic symbol %s");
2f9bd3f6 4868 else
d003868e 4869 msg = _("%B: @pcrel relocation against dynamic symbol %s");
26c61ae5
L
4870 (*_bfd_error_handler) (msg, input_bfd,
4871 h ? h->root.root.string
4872 : bfd_elf_sym_name (input_bfd,
4873 symtab_hdr,
4874 sym,
4875 sym_sec));
2f9bd3f6
RH
4876 ret_val = FALSE;
4877 continue;
4878 }
4879 goto finish_pcrel;
4880
800eeca4
JW
4881 finish_pcrel:
4882 /* Make pc-relative. */
4883 value -= (input_section->output_section->vma
4884 + input_section->output_offset
4885 + rel->r_offset) & ~ (bfd_vma) 0x3;
bbb268c3 4886 r = elfNN_ia64_install_value (hit_addr, value, r_type);
800eeca4
JW
4887 break;
4888
4889 case R_IA64_SEGREL32MSB:
4890 case R_IA64_SEGREL32LSB:
4891 case R_IA64_SEGREL64MSB:
4892 case R_IA64_SEGREL64LSB:
d7458677 4893 {
d7458677 4894 /* Find the segment that contains the output_section. */
2ea37f1c 4895 Elf_Internal_Phdr *p = _bfd_elf_find_segment_containing_section
992824d5 4896 (output_bfd, input_section->output_section);
800eeca4 4897
2ea37f1c 4898 if (p == NULL)
d7458677 4899 {
800eeca4 4900 r = bfd_reloc_notsupported;
d7458677
AM
4901 }
4902 else
4903 {
4904 /* The VMA of the segment is the vaddr of the associated
4905 program header. */
4906 if (value > p->p_vaddr)
4907 value -= p->p_vaddr;
4908 else
4909 value = 0;
bbb268c3 4910 r = elfNN_ia64_install_value (hit_addr, value, r_type);
d7458677
AM
4911 }
4912 break;
4913 }
800eeca4
JW
4914
4915 case R_IA64_SECREL32MSB:
4916 case R_IA64_SECREL32LSB:
4917 case R_IA64_SECREL64MSB:
4918 case R_IA64_SECREL64LSB:
97ecf322
L
4919 /* Make output-section relative to section where the symbol
4920 is defined. PR 475 */
bf718458
L
4921 if (sym_sec)
4922 value -= sym_sec->output_section->vma;
bbb268c3 4923 r = elfNN_ia64_install_value (hit_addr, value, r_type);
800eeca4
JW
4924 break;
4925
800eeca4
JW
4926 case R_IA64_IPLTMSB:
4927 case R_IA64_IPLTLSB:
18b27f17
RH
4928 /* Install a dynamic relocation for this reloc. */
4929 if ((dynamic_symbol_p || info->shared)
4930 && (input_section->flags & SEC_ALLOC) != 0)
4931 {
18b27f17
RH
4932 BFD_ASSERT (srel != NULL);
4933
4934 /* If we don't need dynamic symbol lookup, install two
4935 RELATIVE relocations. */
986a241f 4936 if (!dynamic_symbol_p)
18b27f17
RH
4937 {
4938 unsigned int dyn_r_type;
3e932841 4939
18b27f17
RH
4940 if (r_type == R_IA64_IPLTMSB)
4941 dyn_r_type = R_IA64_REL64MSB;
4942 else
4943 dyn_r_type = R_IA64_REL64LSB;
4944
4945 elfNN_ia64_install_dyn_reloc (output_bfd, info,
4946 input_section,
4947 srel, rel->r_offset,
4948 dyn_r_type, 0, value);
4949 elfNN_ia64_install_dyn_reloc (output_bfd, info,
4950 input_section,
4951 srel, rel->r_offset + 8,
4952 dyn_r_type, 0, gp_val);
4953 }
4954 else
4955 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4956 srel, rel->r_offset, r_type,
4957 h->dynindx, rel->r_addend);
4958 }
4959
4960 if (r_type == R_IA64_IPLTMSB)
4961 r_type = R_IA64_DIR64MSB;
4962 else
4963 r_type = R_IA64_DIR64LSB;
bbb268c3
JW
4964 elfNN_ia64_install_value (hit_addr, value, r_type);
4965 r = elfNN_ia64_install_value (hit_addr + 8, gp_val, r_type);
18b27f17 4966 break;
800eeca4 4967
13ae64f3
JJ
4968 case R_IA64_TPREL14:
4969 case R_IA64_TPREL22:
4970 case R_IA64_TPREL64I:
0f2830ff
L
4971 if (elf_hash_table (info)->tls_sec == NULL)
4972 goto missing_tls_sec;
13ae64f3 4973 value -= elfNN_ia64_tprel_base (info);
bbb268c3 4974 r = elfNN_ia64_install_value (hit_addr, value, r_type);
13ae64f3
JJ
4975 break;
4976
4977 case R_IA64_DTPREL14:
4978 case R_IA64_DTPREL22:
4979 case R_IA64_DTPREL64I:
5a260b66
L
4980 case R_IA64_DTPREL32LSB:
4981 case R_IA64_DTPREL32MSB:
b3dfd7fe
JJ
4982 case R_IA64_DTPREL64LSB:
4983 case R_IA64_DTPREL64MSB:
0f2830ff
L
4984 if (elf_hash_table (info)->tls_sec == NULL)
4985 goto missing_tls_sec;
13ae64f3 4986 value -= elfNN_ia64_dtprel_base (info);
bbb268c3 4987 r = elfNN_ia64_install_value (hit_addr, value, r_type);
13ae64f3
JJ
4988 break;
4989
4990 case R_IA64_LTOFF_TPREL22:
4991 case R_IA64_LTOFF_DTPMOD22:
4992 case R_IA64_LTOFF_DTPREL22:
4993 {
4994 int got_r_type;
a823975a
JJ
4995 long dynindx = h ? h->dynindx : -1;
4996 bfd_vma r_addend = rel->r_addend;
13ae64f3
JJ
4997
4998 switch (r_type)
4999 {
5000 default:
5001 case R_IA64_LTOFF_TPREL22:
a823975a
JJ
5002 if (!dynamic_symbol_p)
5003 {
0f2830ff
L
5004 if (elf_hash_table (info)->tls_sec == NULL)
5005 goto missing_tls_sec;
a823975a
JJ
5006 if (!info->shared)
5007 value -= elfNN_ia64_tprel_base (info);
5008 else
5009 {
5010 r_addend += value - elfNN_ia64_dtprel_base (info);
5011 dynindx = 0;
5012 }
5013 }
13ae64f3
JJ
5014 got_r_type = R_IA64_TPREL64LSB;
5015 break;
5016 case R_IA64_LTOFF_DTPMOD22:
5017 if (!dynamic_symbol_p && !info->shared)
5018 value = 1;
5019 got_r_type = R_IA64_DTPMOD64LSB;
5020 break;
5021 case R_IA64_LTOFF_DTPREL22:
5022 if (!dynamic_symbol_p)
0f2830ff
L
5023 {
5024 if (elf_hash_table (info)->tls_sec == NULL)
5025 goto missing_tls_sec;
5026 value -= elfNN_ia64_dtprel_base (info);
5027 }
5a260b66 5028 got_r_type = R_IA64_DTPRELNNLSB;
13ae64f3
JJ
5029 break;
5030 }
b34976b6 5031 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
a823975a 5032 value = set_got_entry (input_bfd, info, dyn_i, dynindx, r_addend,
13ae64f3
JJ
5033 value, got_r_type);
5034 value -= gp_val;
bbb268c3 5035 r = elfNN_ia64_install_value (hit_addr, value, r_type);
13ae64f3
JJ
5036 }
5037 break;
5038
800eeca4
JW
5039 default:
5040 r = bfd_reloc_notsupported;
5041 break;
5042 }
5043
5044 switch (r)
5045 {
5046 case bfd_reloc_ok:
5047 break;
5048
5049 case bfd_reloc_undefined:
5050 /* This can happen for global table relative relocs if
5051 __gp is undefined. This is a panic situation so we
5052 don't try to continue. */
5053 (*info->callbacks->undefined_symbol)
5054 (info, "__gp", input_bfd, input_section, rel->r_offset, 1);
b34976b6 5055 return FALSE;
800eeca4
JW
5056
5057 case bfd_reloc_notsupported:
5058 {
5059 const char *name;
5060
5061 if (h)
5062 name = h->root.root.string;
5063 else
26c61ae5
L
5064 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
5065 sym_sec);
800eeca4
JW
5066 if (!(*info->callbacks->warning) (info, _("unsupported reloc"),
5067 name, input_bfd,
5068 input_section, rel->r_offset))
b34976b6
AM
5069 return FALSE;
5070 ret_val = FALSE;
800eeca4
JW
5071 }
5072 break;
5073
5074 case bfd_reloc_dangerous:
5075 case bfd_reloc_outofrange:
5076 case bfd_reloc_overflow:
5077 default:
0f2830ff 5078missing_tls_sec:
800eeca4
JW
5079 {
5080 const char *name;
5081
5082 if (h)
f0581930 5083 name = h->root.root.string;
800eeca4 5084 else
26c61ae5
L
5085 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
5086 sym_sec);
c5509b92
L
5087
5088 switch (r_type)
5089 {
0f2830ff
L
5090 case R_IA64_TPREL14:
5091 case R_IA64_TPREL22:
5092 case R_IA64_TPREL64I:
5093 case R_IA64_DTPREL14:
5094 case R_IA64_DTPREL22:
5095 case R_IA64_DTPREL64I:
5096 case R_IA64_DTPREL32LSB:
5097 case R_IA64_DTPREL32MSB:
5098 case R_IA64_DTPREL64LSB:
5099 case R_IA64_DTPREL64MSB:
5100 case R_IA64_LTOFF_TPREL22:
5101 case R_IA64_LTOFF_DTPMOD22:
5102 case R_IA64_LTOFF_DTPREL22:
5103 (*_bfd_error_handler)
5104 (_("%B: missing TLS section for relocation %s against `%s' at 0x%lx in section `%A'."),
5105 input_bfd, input_section, howto->name, name,
5106 rel->r_offset);
5107 break;
5108
c5509b92
L
5109 case R_IA64_PCREL21B:
5110 case R_IA64_PCREL21BI:
5111 case R_IA64_PCREL21M:
5112 case R_IA64_PCREL21F:
5113 if (is_elf_hash_table (info->hash))
5114 {
5115 /* Relaxtion is always performed for ELF output.
5116 Overflow failures for those relocations mean
5117 that the section is too big to relax. */
5118 (*_bfd_error_handler)
5119 (_("%B: Can't relax br (%s) to `%s' at 0x%lx in section `%A' with size 0x%lx (> 0x1000000)."),
5120 input_bfd, input_section, howto->name, name,
5121 rel->r_offset, input_section->size);
5122 break;
5123 }
5124 default:
5125 if (!(*info->callbacks->reloc_overflow) (info,
5126 &h->root,
5127 name,
5128 howto->name,
5129 (bfd_vma) 0,
5130 input_bfd,
5131 input_section,
5132 rel->r_offset))
5133 return FALSE;
5134 break;
5135 }
5136
b34976b6 5137 ret_val = FALSE;
800eeca4
JW
5138 }
5139 break;
5140 }
5141 }
5142
5143 return ret_val;
5144}
5145
b34976b6 5146static bfd_boolean
eae50df2
L
5147elfNN_ia64_finish_dynamic_symbol (bfd *output_bfd,
5148 struct bfd_link_info *info,
5149 struct elf_link_hash_entry *h,
5150 Elf_Internal_Sym *sym)
800eeca4 5151{
bbe66d08
JW
5152 struct elfNN_ia64_link_hash_table *ia64_info;
5153 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4 5154
bbe66d08 5155 ia64_info = elfNN_ia64_hash_table (info);
b34976b6 5156 dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
800eeca4
JW
5157
5158 /* Fill in the PLT data, if required. */
5159 if (dyn_i && dyn_i->want_plt)
5160 {
5161 Elf_Internal_Rela outrel;
5162 bfd_byte *loc;
5163 asection *plt_sec;
5164 bfd_vma plt_addr, pltoff_addr, gp_val, index;
800eeca4
JW
5165
5166 gp_val = _bfd_get_gp_value (output_bfd);
5167
5168 /* Initialize the minimal PLT entry. */
5169
5170 index = (dyn_i->plt_offset - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
5171 plt_sec = ia64_info->plt_sec;
5172 loc = plt_sec->contents + dyn_i->plt_offset;
5173
5174 memcpy (loc, plt_min_entry, PLT_MIN_ENTRY_SIZE);
bbb268c3
JW
5175 elfNN_ia64_install_value (loc, index, R_IA64_IMM22);
5176 elfNN_ia64_install_value (loc+2, -dyn_i->plt_offset, R_IA64_PCREL21B);
800eeca4
JW
5177
5178 plt_addr = (plt_sec->output_section->vma
5179 + plt_sec->output_offset
5180 + dyn_i->plt_offset);
b34976b6 5181 pltoff_addr = set_pltoff_entry (output_bfd, info, dyn_i, plt_addr, TRUE);
800eeca4
JW
5182
5183 /* Initialize the FULL PLT entry, if needed. */
5184 if (dyn_i->want_plt2)
5185 {
5186 loc = plt_sec->contents + dyn_i->plt2_offset;
5187
5188 memcpy (loc, plt_full_entry, PLT_FULL_ENTRY_SIZE);
bbb268c3 5189 elfNN_ia64_install_value (loc, pltoff_addr - gp_val, R_IA64_IMM22);
800eeca4
JW
5190
5191 /* Mark the symbol as undefined, rather than as defined in the
5192 plt section. Leave the value alone. */
5193 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
c152c796 5194 first place. But perhaps elflink.c did some for us. */
f5385ebf 5195 if (!h->def_regular)
800eeca4
JW
5196 sym->st_shndx = SHN_UNDEF;
5197 }
5198
5199 /* Create the dynamic relocation. */
5200 outrel.r_offset = pltoff_addr;
5201 if (bfd_little_endian (output_bfd))
bbe66d08 5202 outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTLSB);
800eeca4 5203 else
bbe66d08 5204 outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTMSB);
800eeca4
JW
5205 outrel.r_addend = 0;
5206
5207 /* This is fun. In the .IA_64.pltoff section, we've got entries
5208 that correspond both to real PLT entries, and those that
5209 happened to resolve to local symbols but need to be created
5210 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
5211 relocations for the real PLT should come at the end of the
5212 section, so that they can be indexed by plt entry at runtime.
5213
5214 We emitted all of the relocations for the non-PLT @pltoff
5215 entries during relocate_section. So we can consider the
5216 existing sec->reloc_count to be the base of the array of
5217 PLT relocations. */
5218
947216bf
AM
5219 loc = ia64_info->rel_pltoff_sec->contents;
5220 loc += ((ia64_info->rel_pltoff_sec->reloc_count + index)
37cd2629 5221 * sizeof (ElfNN_External_Rela));
947216bf 5222 bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc);
800eeca4
JW
5223 }
5224
5225 /* Mark some specially defined symbols as absolute. */
5226 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
22edb2f1
RS
5227 || h == ia64_info->root.hgot
5228 || h == ia64_info->root.hplt)
800eeca4
JW
5229 sym->st_shndx = SHN_ABS;
5230
b34976b6 5231 return TRUE;
800eeca4
JW
5232}
5233
b34976b6 5234static bfd_boolean
eae50df2
L
5235elfNN_ia64_finish_dynamic_sections (bfd *abfd,
5236 struct bfd_link_info *info)
800eeca4 5237{
bbe66d08 5238 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW
5239 bfd *dynobj;
5240
bbe66d08 5241 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW
5242 dynobj = ia64_info->root.dynobj;
5243
5244 if (elf_hash_table (info)->dynamic_sections_created)
5245 {
bbe66d08 5246 ElfNN_External_Dyn *dyncon, *dynconend;
800eeca4
JW
5247 asection *sdyn, *sgotplt;
5248 bfd_vma gp_val;
5249
5250 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
5251 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
5252 BFD_ASSERT (sdyn != NULL);
bbe66d08 5253 dyncon = (ElfNN_External_Dyn *) sdyn->contents;
eea6121a 5254 dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->size);
800eeca4
JW
5255
5256 gp_val = _bfd_get_gp_value (abfd);
5257
5258 for (; dyncon < dynconend; dyncon++)
5259 {
5260 Elf_Internal_Dyn dyn;
800eeca4 5261
bbe66d08 5262 bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn);
800eeca4
JW
5263
5264 switch (dyn.d_tag)
5265 {
5266 case DT_PLTGOT:
5267 dyn.d_un.d_ptr = gp_val;
5268 break;
5269
5270 case DT_PLTRELSZ:
5271 dyn.d_un.d_val = (ia64_info->minplt_entries
bbe66d08 5272 * sizeof (ElfNN_External_Rela));
800eeca4
JW
5273 break;
5274
5275 case DT_JMPREL:
5276 /* See the comment above in finish_dynamic_symbol. */
5277 dyn.d_un.d_ptr = (ia64_info->rel_pltoff_sec->output_section->vma
5278 + ia64_info->rel_pltoff_sec->output_offset
5279 + (ia64_info->rel_pltoff_sec->reloc_count
bbe66d08 5280 * sizeof (ElfNN_External_Rela)));
800eeca4
JW
5281 break;
5282
5283 case DT_IA_64_PLT_RESERVE:
5284 dyn.d_un.d_ptr = (sgotplt->output_section->vma
5285 + sgotplt->output_offset);
5286 break;
5287
5288 case DT_RELASZ:
5289 /* Do not have RELASZ include JMPREL. This makes things
3e932841 5290 easier on ld.so. This is not what the rest of BFD set up. */
800eeca4 5291 dyn.d_un.d_val -= (ia64_info->minplt_entries
bbe66d08 5292 * sizeof (ElfNN_External_Rela));
800eeca4 5293 break;
800eeca4
JW
5294 }
5295
bbe66d08 5296 bfd_elfNN_swap_dyn_out (abfd, &dyn, dyncon);
800eeca4
JW
5297 }
5298
ae9a127f 5299 /* Initialize the PLT0 entry. */
800eeca4
JW
5300 if (ia64_info->plt_sec)
5301 {
5302 bfd_byte *loc = ia64_info->plt_sec->contents;
5303 bfd_vma pltres;
5304
5305 memcpy (loc, plt_header, PLT_HEADER_SIZE);
5306
5307 pltres = (sgotplt->output_section->vma
5308 + sgotplt->output_offset
5309 - gp_val);
5310
bbb268c3 5311 elfNN_ia64_install_value (loc+1, pltres, R_IA64_GPREL22);
800eeca4
JW
5312 }
5313 }
5314
b34976b6 5315 return TRUE;
800eeca4
JW
5316}
5317\f
ae9a127f 5318/* ELF file flag handling: */
800eeca4 5319
3e932841 5320/* Function to keep IA-64 specific file flags. */
b34976b6 5321static bfd_boolean
eae50df2 5322elfNN_ia64_set_private_flags (bfd *abfd, flagword flags)
800eeca4
JW
5323{
5324 BFD_ASSERT (!elf_flags_init (abfd)
5325 || elf_elfheader (abfd)->e_flags == flags);
5326
5327 elf_elfheader (abfd)->e_flags = flags;
b34976b6
AM
5328 elf_flags_init (abfd) = TRUE;
5329 return TRUE;
800eeca4
JW
5330}
5331
800eeca4
JW
5332/* Merge backend specific data from an object file to the output
5333 object file when linking. */
b34976b6 5334static bfd_boolean
eae50df2 5335elfNN_ia64_merge_private_bfd_data (bfd *ibfd, bfd *obfd)
800eeca4
JW
5336{
5337 flagword out_flags;
5338 flagword in_flags;
b34976b6 5339 bfd_boolean ok = TRUE;
800eeca4
JW
5340
5341 /* Don't even pretend to support mixed-format linking. */
5342 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
5343 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
b34976b6 5344 return FALSE;
800eeca4
JW
5345
5346 in_flags = elf_elfheader (ibfd)->e_flags;
5347 out_flags = elf_elfheader (obfd)->e_flags;
5348
5349 if (! elf_flags_init (obfd))
5350 {
b34976b6 5351 elf_flags_init (obfd) = TRUE;
800eeca4
JW
5352 elf_elfheader (obfd)->e_flags = in_flags;
5353
5354 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
5355 && bfd_get_arch_info (obfd)->the_default)
5356 {
5357 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
5358 bfd_get_mach (ibfd));
5359 }
5360
b34976b6 5361 return TRUE;
800eeca4
JW
5362 }
5363
5364 /* Check flag compatibility. */
5365 if (in_flags == out_flags)
b34976b6 5366 return TRUE;
800eeca4 5367
c43c2cc5
JW
5368 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
5369 if (!(in_flags & EF_IA_64_REDUCEDFP) && (out_flags & EF_IA_64_REDUCEDFP))
5370 elf_elfheader (obfd)->e_flags &= ~EF_IA_64_REDUCEDFP;
5371
800eeca4
JW
5372 if ((in_flags & EF_IA_64_TRAPNIL) != (out_flags & EF_IA_64_TRAPNIL))
5373 {
5374 (*_bfd_error_handler)
d003868e
AM
5375 (_("%B: linking trap-on-NULL-dereference with non-trapping files"),
5376 ibfd);
800eeca4
JW
5377
5378 bfd_set_error (bfd_error_bad_value);
b34976b6 5379 ok = FALSE;
800eeca4
JW
5380 }
5381 if ((in_flags & EF_IA_64_BE) != (out_flags & EF_IA_64_BE))
5382 {
5383 (*_bfd_error_handler)
d003868e
AM
5384 (_("%B: linking big-endian files with little-endian files"),
5385 ibfd);
800eeca4
JW
5386
5387 bfd_set_error (bfd_error_bad_value);
b34976b6 5388 ok = FALSE;
800eeca4
JW
5389 }
5390 if ((in_flags & EF_IA_64_ABI64) != (out_flags & EF_IA_64_ABI64))
5391 {
5392 (*_bfd_error_handler)
d003868e
AM
5393 (_("%B: linking 64-bit files with 32-bit files"),
5394 ibfd);
800eeca4
JW
5395
5396 bfd_set_error (bfd_error_bad_value);
b34976b6 5397 ok = FALSE;
800eeca4 5398 }
c43c2cc5
JW
5399 if ((in_flags & EF_IA_64_CONS_GP) != (out_flags & EF_IA_64_CONS_GP))
5400 {
5401 (*_bfd_error_handler)
d003868e
AM
5402 (_("%B: linking constant-gp files with non-constant-gp files"),
5403 ibfd);
c43c2cc5
JW
5404
5405 bfd_set_error (bfd_error_bad_value);
b34976b6 5406 ok = FALSE;
c43c2cc5
JW
5407 }
5408 if ((in_flags & EF_IA_64_NOFUNCDESC_CONS_GP)
5409 != (out_flags & EF_IA_64_NOFUNCDESC_CONS_GP))
5410 {
5411 (*_bfd_error_handler)
d003868e
AM
5412 (_("%B: linking auto-pic files with non-auto-pic files"),
5413 ibfd);
c43c2cc5
JW
5414
5415 bfd_set_error (bfd_error_bad_value);
b34976b6 5416 ok = FALSE;
c43c2cc5 5417 }
800eeca4
JW
5418
5419 return ok;
5420}
5421
b34976b6 5422static bfd_boolean
eae50df2 5423elfNN_ia64_print_private_bfd_data (bfd *abfd, PTR ptr)
800eeca4
JW
5424{
5425 FILE *file = (FILE *) ptr;
5426 flagword flags = elf_elfheader (abfd)->e_flags;
5427
5428 BFD_ASSERT (abfd != NULL && ptr != NULL);
5429
c43c2cc5 5430 fprintf (file, "private flags = %s%s%s%s%s%s%s%s\n",
800eeca4
JW
5431 (flags & EF_IA_64_TRAPNIL) ? "TRAPNIL, " : "",
5432 (flags & EF_IA_64_EXT) ? "EXT, " : "",
5433 (flags & EF_IA_64_BE) ? "BE, " : "LE, ",
c43c2cc5
JW
5434 (flags & EF_IA_64_REDUCEDFP) ? "REDUCEDFP, " : "",
5435 (flags & EF_IA_64_CONS_GP) ? "CONS_GP, " : "",
5436 (flags & EF_IA_64_NOFUNCDESC_CONS_GP) ? "NOFUNCDESC_CONS_GP, " : "",
5437 (flags & EF_IA_64_ABSOLUTE) ? "ABSOLUTE, " : "",
800eeca4 5438 (flags & EF_IA_64_ABI64) ? "ABI64" : "ABI32");
3e932841 5439
800eeca4 5440 _bfd_elf_print_private_bfd_data (abfd, ptr);
b34976b6 5441 return TRUE;
800eeca4 5442}
db6751f2
JJ
5443
5444static enum elf_reloc_type_class
eae50df2 5445elfNN_ia64_reloc_type_class (const Elf_Internal_Rela *rela)
db6751f2 5446{
f51e552e 5447 switch ((int) ELFNN_R_TYPE (rela->r_info))
db6751f2
JJ
5448 {
5449 case R_IA64_REL32MSB:
5450 case R_IA64_REL32LSB:
5451 case R_IA64_REL64MSB:
5452 case R_IA64_REL64LSB:
5453 return reloc_class_relative;
5454 case R_IA64_IPLTMSB:
5455 case R_IA64_IPLTLSB:
5456 return reloc_class_plt;
5457 case R_IA64_COPY:
5458 return reloc_class_copy;
5459 default:
5460 return reloc_class_normal;
5461 }
5462}
fcf12726 5463
b35d266b 5464static const struct bfd_elf_special_section elfNN_ia64_special_sections[] =
2f89ff8d 5465{
0112cd26
NC
5466 { STRING_COMMA_LEN (".sbss"), -1, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
5467 { STRING_COMMA_LEN (".sdata"), -1, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
5468 { NULL, 0, 0, 0, 0 }
7f4d3958
L
5469};
5470
da9f89d4
L
5471static bfd_boolean
5472elfNN_ia64_object_p (bfd *abfd)
5473{
5474 asection *sec;
da9f89d4
L
5475 asection *group, *unwi, *unw;
5476 flagword flags;
5477 const char *name;
5478 char *unwi_name, *unw_name;
5479 bfd_size_type amt;
5480
5481 if (abfd->flags & DYNAMIC)
5482 return TRUE;
5483
5484 /* Flags for fake group section. */
5485 flags = (SEC_LINKER_CREATED | SEC_GROUP | SEC_LINK_ONCE
5486 | SEC_EXCLUDE);
5487
5488 /* We add a fake section group for each .gnu.linkonce.t.* section,
5489 which isn't in a section group, and its unwind sections. */
5490 for (sec = abfd->sections; sec != NULL; sec = sec->next)
5491 {
5492 if (elf_sec_group (sec) == NULL
5493 && ((sec->flags & (SEC_LINK_ONCE | SEC_CODE | SEC_GROUP))
5494 == (SEC_LINK_ONCE | SEC_CODE))
0112cd26 5495 && CONST_STRNEQ (sec->name, ".gnu.linkonce.t."))
da9f89d4
L
5496 {
5497 name = sec->name + 16;
5498
5499 amt = strlen (name) + sizeof (".gnu.linkonce.ia64unwi.");
5500 unwi_name = bfd_alloc (abfd, amt);
5501 if (!unwi_name)
5502 return FALSE;
5503
5504 strcpy (stpcpy (unwi_name, ".gnu.linkonce.ia64unwi."), name);
5505 unwi = bfd_get_section_by_name (abfd, unwi_name);
5506
5507 amt = strlen (name) + sizeof (".gnu.linkonce.ia64unw.");
5508 unw_name = bfd_alloc (abfd, amt);
5509 if (!unw_name)
5510 return FALSE;
5511
5512 strcpy (stpcpy (unw_name, ".gnu.linkonce.ia64unw."), name);
5513 unw = bfd_get_section_by_name (abfd, unw_name);
5514
da9f89d4
L
5515 /* We need to create a fake group section for it and its
5516 unwind sections. */
3496cb2a
L
5517 group = bfd_make_section_anyway_with_flags (abfd, name,
5518 flags);
5519 if (group == NULL)
da9f89d4
L
5520 return FALSE;
5521
5522 /* Move the fake group section to the beginning. */
5daa8fe7 5523 bfd_section_list_remove (abfd, group);
04dd1667 5524 bfd_section_list_prepend (abfd, group);
da9f89d4
L
5525
5526 elf_next_in_group (group) = sec;
5527
5528 elf_group_name (sec) = name;
5529 elf_next_in_group (sec) = sec;
5530 elf_sec_group (sec) = group;
5531
5532 if (unwi)
5533 {
5534 elf_group_name (unwi) = name;
5535 elf_next_in_group (unwi) = sec;
5536 elf_next_in_group (sec) = unwi;
5537 elf_sec_group (unwi) = group;
5538 }
5539
5540 if (unw)
5541 {
5542 elf_group_name (unw) = name;
5543 if (unwi)
5544 {
5545 elf_next_in_group (unw) = elf_next_in_group (unwi);
5546 elf_next_in_group (unwi) = unw;
5547 }
5548 else
5549 {
5550 elf_next_in_group (unw) = sec;
5551 elf_next_in_group (sec) = unw;
5552 }
5553 elf_sec_group (unw) = group;
5554 }
5555
5556 /* Fake SHT_GROUP section header. */
5557 elf_section_data (group)->this_hdr.bfd_section = group;
5558 elf_section_data (group)->this_hdr.sh_type = SHT_GROUP;
5559 }
5560 }
5561 return TRUE;
5562}
5563
b34976b6 5564static bfd_boolean
d9cf1b54
AM
5565elfNN_ia64_hpux_vec (const bfd_target *vec)
5566{
5567 extern const bfd_target bfd_elfNN_ia64_hpux_big_vec;
5568 return (vec == & bfd_elfNN_ia64_hpux_big_vec);
5569}
5570
fcf12726 5571static void
eae50df2
L
5572elfNN_hpux_post_process_headers (bfd *abfd,
5573 struct bfd_link_info *info ATTRIBUTE_UNUSED)
fcf12726
AM
5574{
5575 Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd);
5576
d1036acb 5577 i_ehdrp->e_ident[EI_OSABI] = get_elf_backend_data (abfd)->elf_osabi;
fcf12726
AM
5578 i_ehdrp->e_ident[EI_ABIVERSION] = 1;
5579}
d9cf1b54 5580
eae50df2
L
5581static bfd_boolean
5582elfNN_hpux_backend_section_from_bfd_section (bfd *abfd ATTRIBUTE_UNUSED,
5583 asection *sec, int *retval)
d9cf1b54
AM
5584{
5585 if (bfd_is_com_section (sec))
5586 {
5587 *retval = SHN_IA_64_ANSI_COMMON;
b34976b6 5588 return TRUE;
d9cf1b54 5589 }
b34976b6 5590 return FALSE;
d9cf1b54 5591}
b59dd4a5
L
5592
5593static void
5594elfNN_hpux_backend_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED,
5595 asymbol *asym)
5596{
5f1cb353 5597 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
b59dd4a5
L
5598
5599 switch (elfsym->internal_elf_sym.st_shndx)
5600 {
5601 case SHN_IA_64_ANSI_COMMON:
5602 asym->section = bfd_com_section_ptr;
5603 asym->value = elfsym->internal_elf_sym.st_size;
5604 asym->flags &= ~BSF_GLOBAL;
5605 break;
5606 }
5607}
5608
800eeca4 5609\f
bbe66d08
JW
5610#define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
5611#define TARGET_LITTLE_NAME "elfNN-ia64-little"
5612#define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec
5613#define TARGET_BIG_NAME "elfNN-ia64-big"
800eeca4
JW
5614#define ELF_ARCH bfd_arch_ia64
5615#define ELF_MACHINE_CODE EM_IA_64
5616#define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
5617#define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
5618#define ELF_MAXPAGESIZE 0x10000 /* 64KB */
24718e3b 5619#define ELF_COMMONPAGESIZE 0x4000 /* 16KB */
800eeca4
JW
5620
5621#define elf_backend_section_from_shdr \
bbe66d08 5622 elfNN_ia64_section_from_shdr
fa152c49 5623#define elf_backend_section_flags \
bbe66d08 5624 elfNN_ia64_section_flags
800eeca4 5625#define elf_backend_fake_sections \
bbe66d08 5626 elfNN_ia64_fake_sections
81545d45
RH
5627#define elf_backend_final_write_processing \
5628 elfNN_ia64_final_write_processing
800eeca4 5629#define elf_backend_add_symbol_hook \
bbe66d08 5630 elfNN_ia64_add_symbol_hook
800eeca4 5631#define elf_backend_additional_program_headers \
bbe66d08 5632 elfNN_ia64_additional_program_headers
800eeca4 5633#define elf_backend_modify_segment_map \
bbe66d08 5634 elfNN_ia64_modify_segment_map
e36284ab
AM
5635#define elf_backend_modify_program_headers \
5636 elfNN_ia64_modify_program_headers
800eeca4 5637#define elf_info_to_howto \
bbe66d08 5638 elfNN_ia64_info_to_howto
800eeca4 5639
bbe66d08
JW
5640#define bfd_elfNN_bfd_reloc_type_lookup \
5641 elfNN_ia64_reloc_type_lookup
157090f7
AM
5642#define bfd_elfNN_bfd_reloc_name_lookup \
5643 elfNN_ia64_reloc_name_lookup
bbe66d08
JW
5644#define bfd_elfNN_bfd_is_local_label_name \
5645 elfNN_ia64_is_local_label_name
5646#define bfd_elfNN_bfd_relax_section \
5647 elfNN_ia64_relax_section
800eeca4 5648
da9f89d4
L
5649#define elf_backend_object_p \
5650 elfNN_ia64_object_p
5651
800eeca4 5652/* Stuff for the BFD linker: */
bbe66d08
JW
5653#define bfd_elfNN_bfd_link_hash_table_create \
5654 elfNN_ia64_hash_table_create
0aa92b58
JJ
5655#define bfd_elfNN_bfd_link_hash_table_free \
5656 elfNN_ia64_hash_table_free
800eeca4 5657#define elf_backend_create_dynamic_sections \
bbe66d08 5658 elfNN_ia64_create_dynamic_sections
800eeca4 5659#define elf_backend_check_relocs \
bbe66d08 5660 elfNN_ia64_check_relocs
800eeca4 5661#define elf_backend_adjust_dynamic_symbol \
bbe66d08 5662 elfNN_ia64_adjust_dynamic_symbol
800eeca4 5663#define elf_backend_size_dynamic_sections \
bbe66d08 5664 elfNN_ia64_size_dynamic_sections
74541ad4
AM
5665#define elf_backend_omit_section_dynsym \
5666 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
800eeca4 5667#define elf_backend_relocate_section \
bbe66d08 5668 elfNN_ia64_relocate_section
800eeca4 5669#define elf_backend_finish_dynamic_symbol \
bbe66d08 5670 elfNN_ia64_finish_dynamic_symbol
800eeca4 5671#define elf_backend_finish_dynamic_sections \
bbe66d08
JW
5672 elfNN_ia64_finish_dynamic_sections
5673#define bfd_elfNN_bfd_final_link \
5674 elfNN_ia64_final_link
5675
bbe66d08
JW
5676#define bfd_elfNN_bfd_merge_private_bfd_data \
5677 elfNN_ia64_merge_private_bfd_data
5678#define bfd_elfNN_bfd_set_private_flags \
5679 elfNN_ia64_set_private_flags
5680#define bfd_elfNN_bfd_print_private_bfd_data \
5681 elfNN_ia64_print_private_bfd_data
800eeca4
JW
5682
5683#define elf_backend_plt_readonly 1
5684#define elf_backend_want_plt_sym 0
5685#define elf_backend_plt_alignment 5
5686#define elf_backend_got_header_size 0
800eeca4
JW
5687#define elf_backend_want_got_plt 1
5688#define elf_backend_may_use_rel_p 1
5689#define elf_backend_may_use_rela_p 1
5690#define elf_backend_default_use_rela_p 1
5691#define elf_backend_want_dynbss 0
bbe66d08
JW
5692#define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
5693#define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
508c3946 5694#define elf_backend_fixup_symbol _bfd_elf_link_hash_fixup_symbol
db6751f2 5695#define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
b491616a 5696#define elf_backend_rela_normal 1
29ef7005 5697#define elf_backend_special_sections elfNN_ia64_special_sections
d4d2b80b 5698#define elf_backend_default_execstack 0
800eeca4 5699
185d09ad 5700/* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with
e04bcc6d 5701 SHF_LINK_ORDER. But it doesn't set the sh_link or sh_info fields.
185d09ad
L
5702 We don't want to flood users with so many error messages. We turn
5703 off the warning for now. It will be turned on later when the Intel
5704 compiler is fixed. */
5705#define elf_backend_link_order_error_handler NULL
5706
bbe66d08 5707#include "elfNN-target.h"
7b6dab7f 5708
fcf12726
AM
5709/* HPUX-specific vectors. */
5710
5711#undef TARGET_LITTLE_SYM
5712#undef TARGET_LITTLE_NAME
5713#undef TARGET_BIG_SYM
5714#define TARGET_BIG_SYM bfd_elfNN_ia64_hpux_big_vec
5715#undef TARGET_BIG_NAME
5716#define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
5717
254ed743
NC
5718/* These are HP-UX specific functions. */
5719
fcf12726
AM
5720#undef elf_backend_post_process_headers
5721#define elf_backend_post_process_headers elfNN_hpux_post_process_headers
5722
d9cf1b54
AM
5723#undef elf_backend_section_from_bfd_section
5724#define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
5725
b59dd4a5
L
5726#undef elf_backend_symbol_processing
5727#define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
5728
5e8d7549
NC
5729#undef elf_backend_want_p_paddr_set_to_zero
5730#define elf_backend_want_p_paddr_set_to_zero 1
5731
24718e3b 5732#undef ELF_COMMONPAGESIZE
d1036acb
L
5733#undef ELF_OSABI
5734#define ELF_OSABI ELFOSABI_HPUX
fcf12726
AM
5735
5736#undef elfNN_bed
5737#define elfNN_bed elfNN_ia64_hpux_bed
5738
5739#include "elfNN-target.h"
5e8d7549
NC
5740
5741#undef elf_backend_want_p_paddr_set_to_zero
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