* elfxx-ia64.c (struct elfNN_ia64_allocate_data): Add only_got.
[deliverable/binutils-gdb.git] / bfd / elfxx-ia64.c
1 /* IA-64 support for 64-bit ELF
2 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
3 Free Software Foundation, Inc.
4 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
5
6 This file is part of BFD, the Binary File Descriptor library.
7
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
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
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.
17
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
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
21
22 #include "bfd.h"
23 #include "sysdep.h"
24 #include "libbfd.h"
25 #include "elf-bfd.h"
26 #include "opcode/ia64.h"
27 #include "elf/ia64.h"
28 #include "objalloc.h"
29 #include "hashtab.h"
30
31 #define ARCH_SIZE NN
32
33 #if ARCH_SIZE == 64
34 #define LOG_SECTION_ALIGN 3
35 #endif
36
37 #if ARCH_SIZE == 32
38 #define LOG_SECTION_ALIGN 2
39 #endif
40
41 /* THE RULES for all the stuff the linker creates --
42
43 GOT Entries created in response to LTOFF or LTOFF_FPTR
44 relocations. Dynamic relocs created for dynamic
45 symbols in an application; REL relocs for locals
46 in a shared library.
47
48 FPTR The canonical function descriptor. Created for local
49 symbols in applications. Descriptors for dynamic symbols
50 and local symbols in shared libraries are created by
51 ld.so. Thus there are no dynamic relocs against these
52 objects. The FPTR relocs for such _are_ passed through
53 to the dynamic relocation tables.
54
55 FULL_PLT Created for a PCREL21B relocation against a dynamic symbol.
56 Requires the creation of a PLTOFF entry. This does not
57 require any dynamic relocations.
58
59 PLTOFF Created by PLTOFF relocations. For local symbols, this
60 is an alternate function descriptor, and in shared libraries
61 requires two REL relocations. Note that this cannot be
62 transformed into an FPTR relocation, since it must be in
63 range of the GP. For dynamic symbols, this is a function
64 descriptor for a MIN_PLT entry, and requires one IPLT reloc.
65
66 MIN_PLT Created by PLTOFF entries against dynamic symbols. This
67 does not require dynamic relocations. */
68
69 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
70
71 typedef struct bfd_hash_entry *(*new_hash_entry_func)
72 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
73
74 /* In dynamically (linker-) created sections, we generally need to keep track
75 of the place a symbol or expression got allocated to. This is done via hash
76 tables that store entries of the following type. */
77
78 struct elfNN_ia64_dyn_sym_info
79 {
80 /* The addend for which this entry is relevant. */
81 bfd_vma addend;
82
83 /* Next addend in the list. */
84 struct elfNN_ia64_dyn_sym_info *next;
85
86 bfd_vma got_offset;
87 bfd_vma fptr_offset;
88 bfd_vma pltoff_offset;
89 bfd_vma plt_offset;
90 bfd_vma plt2_offset;
91 bfd_vma tprel_offset;
92 bfd_vma dtpmod_offset;
93 bfd_vma dtprel_offset;
94
95 /* The symbol table entry, if any, that this was derived from. */
96 struct elf_link_hash_entry *h;
97
98 /* Used to count non-got, non-plt relocations for delayed sizing
99 of relocation sections. */
100 struct elfNN_ia64_dyn_reloc_entry
101 {
102 struct elfNN_ia64_dyn_reloc_entry *next;
103 asection *srel;
104 int type;
105 int count;
106
107 /* Is this reloc against readonly section? */
108 bfd_boolean reltext;
109 } *reloc_entries;
110
111 /* TRUE when the section contents have been updated. */
112 unsigned got_done : 1;
113 unsigned fptr_done : 1;
114 unsigned pltoff_done : 1;
115 unsigned tprel_done : 1;
116 unsigned dtpmod_done : 1;
117 unsigned dtprel_done : 1;
118
119 /* TRUE for the different kinds of linker data we want created. */
120 unsigned want_got : 1;
121 unsigned want_gotx : 1;
122 unsigned want_fptr : 1;
123 unsigned want_ltoff_fptr : 1;
124 unsigned want_plt : 1;
125 unsigned want_plt2 : 1;
126 unsigned want_pltoff : 1;
127 unsigned want_tprel : 1;
128 unsigned want_dtpmod : 1;
129 unsigned want_dtprel : 1;
130 };
131
132 struct elfNN_ia64_local_hash_entry
133 {
134 int id;
135 unsigned int r_sym;
136 struct elfNN_ia64_dyn_sym_info *info;
137
138 /* TRUE if this hash entry's addends was translated for
139 SHF_MERGE optimization. */
140 unsigned sec_merge_done : 1;
141 };
142
143 struct elfNN_ia64_link_hash_entry
144 {
145 struct elf_link_hash_entry root;
146 struct elfNN_ia64_dyn_sym_info *info;
147 };
148
149 struct elfNN_ia64_link_hash_table
150 {
151 /* The main hash table. */
152 struct elf_link_hash_table root;
153
154 asection *got_sec; /* the linkage table section (or NULL) */
155 asection *rel_got_sec; /* dynamic relocation section for same */
156 asection *fptr_sec; /* function descriptor table (or NULL) */
157 asection *rel_fptr_sec; /* dynamic relocation section for same */
158 asection *plt_sec; /* the primary plt section (or NULL) */
159 asection *pltoff_sec; /* private descriptors for plt (or NULL) */
160 asection *rel_pltoff_sec; /* dynamic relocation section for same */
161
162 bfd_size_type minplt_entries; /* number of minplt entries */
163 unsigned reltext : 1; /* are there relocs against readonly sections? */
164 unsigned self_dtpmod_done : 1;/* has self DTPMOD entry been finished? */
165 bfd_vma self_dtpmod_offset; /* .got offset to self DTPMOD entry */
166
167 htab_t loc_hash_table;
168 void *loc_hash_memory;
169 };
170
171 struct elfNN_ia64_allocate_data
172 {
173 struct bfd_link_info *info;
174 bfd_size_type ofs;
175 bfd_boolean only_got;
176 };
177
178 #define elfNN_ia64_hash_table(p) \
179 ((struct elfNN_ia64_link_hash_table *) ((p)->hash))
180
181 static bfd_reloc_status_type elfNN_ia64_reloc
182 PARAMS ((bfd *abfd, arelent *reloc, asymbol *sym, PTR data,
183 asection *input_section, bfd *output_bfd, char **error_message));
184 static reloc_howto_type * lookup_howto
185 PARAMS ((unsigned int rtype));
186 static reloc_howto_type *elfNN_ia64_reloc_type_lookup
187 PARAMS ((bfd *abfd, bfd_reloc_code_real_type bfd_code));
188 static void elfNN_ia64_info_to_howto
189 PARAMS ((bfd *abfd, arelent *bfd_reloc, Elf_Internal_Rela *elf_reloc));
190 static bfd_boolean elfNN_ia64_relax_section
191 PARAMS((bfd *abfd, asection *sec, struct bfd_link_info *link_info,
192 bfd_boolean *again));
193 static void elfNN_ia64_relax_ldxmov
194 PARAMS((bfd_byte *contents, bfd_vma off));
195 static bfd_boolean is_unwind_section_name
196 PARAMS ((bfd *abfd, const char *));
197 static bfd_boolean elfNN_ia64_section_flags
198 PARAMS ((flagword *, const Elf_Internal_Shdr *));
199 static bfd_boolean elfNN_ia64_fake_sections
200 PARAMS ((bfd *abfd, Elf_Internal_Shdr *hdr, asection *sec));
201 static void elfNN_ia64_final_write_processing
202 PARAMS ((bfd *abfd, bfd_boolean linker));
203 static bfd_boolean elfNN_ia64_add_symbol_hook
204 PARAMS ((bfd *abfd, struct bfd_link_info *info, Elf_Internal_Sym *sym,
205 const char **namep, flagword *flagsp, asection **secp,
206 bfd_vma *valp));
207 static int elfNN_ia64_additional_program_headers
208 PARAMS ((bfd *abfd));
209 static bfd_boolean elfNN_ia64_modify_segment_map
210 PARAMS ((bfd *, struct bfd_link_info *));
211 static bfd_boolean elfNN_ia64_is_local_label_name
212 PARAMS ((bfd *abfd, const char *name));
213 static bfd_boolean elfNN_ia64_dynamic_symbol_p
214 PARAMS ((struct elf_link_hash_entry *h, struct bfd_link_info *info, int));
215 static struct bfd_hash_entry *elfNN_ia64_new_elf_hash_entry
216 PARAMS ((struct bfd_hash_entry *entry, struct bfd_hash_table *table,
217 const char *string));
218 static void elfNN_ia64_hash_copy_indirect
219 PARAMS ((const struct elf_backend_data *, struct elf_link_hash_entry *,
220 struct elf_link_hash_entry *));
221 static void elfNN_ia64_hash_hide_symbol
222 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean));
223 static hashval_t elfNN_ia64_local_htab_hash PARAMS ((const void *));
224 static int elfNN_ia64_local_htab_eq PARAMS ((const void *ptr1,
225 const void *ptr2));
226 static struct bfd_link_hash_table *elfNN_ia64_hash_table_create
227 PARAMS ((bfd *abfd));
228 static void elfNN_ia64_hash_table_free
229 PARAMS ((struct bfd_link_hash_table *hash));
230 static bfd_boolean elfNN_ia64_global_dyn_sym_thunk
231 PARAMS ((struct bfd_hash_entry *, PTR));
232 static int elfNN_ia64_local_dyn_sym_thunk
233 PARAMS ((void **, PTR));
234 static void elfNN_ia64_dyn_sym_traverse
235 PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
236 bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, PTR),
237 PTR info));
238 static bfd_boolean elfNN_ia64_create_dynamic_sections
239 PARAMS ((bfd *abfd, struct bfd_link_info *info));
240 static struct elfNN_ia64_local_hash_entry * get_local_sym_hash
241 PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
242 bfd *abfd, const Elf_Internal_Rela *rel, bfd_boolean create));
243 static struct elfNN_ia64_dyn_sym_info * get_dyn_sym_info
244 PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
245 struct elf_link_hash_entry *h,
246 bfd *abfd, const Elf_Internal_Rela *rel, bfd_boolean create));
247 static asection *get_got
248 PARAMS ((bfd *abfd, struct bfd_link_info *info,
249 struct elfNN_ia64_link_hash_table *ia64_info));
250 static asection *get_fptr
251 PARAMS ((bfd *abfd, struct bfd_link_info *info,
252 struct elfNN_ia64_link_hash_table *ia64_info));
253 static asection *get_pltoff
254 PARAMS ((bfd *abfd, struct bfd_link_info *info,
255 struct elfNN_ia64_link_hash_table *ia64_info));
256 static asection *get_reloc_section
257 PARAMS ((bfd *abfd, struct elfNN_ia64_link_hash_table *ia64_info,
258 asection *sec, bfd_boolean create));
259 static bfd_boolean elfNN_ia64_check_relocs
260 PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *sec,
261 const Elf_Internal_Rela *relocs));
262 static bfd_boolean elfNN_ia64_adjust_dynamic_symbol
263 PARAMS ((struct bfd_link_info *info, struct elf_link_hash_entry *h));
264 static long global_sym_index
265 PARAMS ((struct elf_link_hash_entry *h));
266 static bfd_boolean allocate_fptr
267 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
268 static bfd_boolean allocate_global_data_got
269 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
270 static bfd_boolean allocate_global_fptr_got
271 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
272 static bfd_boolean allocate_local_got
273 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
274 static bfd_boolean allocate_pltoff_entries
275 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
276 static bfd_boolean allocate_plt_entries
277 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
278 static bfd_boolean allocate_plt2_entries
279 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
280 static bfd_boolean allocate_dynrel_entries
281 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
282 static bfd_boolean elfNN_ia64_size_dynamic_sections
283 PARAMS ((bfd *output_bfd, struct bfd_link_info *info));
284 static bfd_reloc_status_type elfNN_ia64_install_value
285 PARAMS ((bfd_byte *hit_addr, bfd_vma val, unsigned int r_type));
286 static void elfNN_ia64_install_dyn_reloc
287 PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *sec,
288 asection *srel, bfd_vma offset, unsigned int type,
289 long dynindx, bfd_vma addend));
290 static bfd_vma set_got_entry
291 PARAMS ((bfd *abfd, struct bfd_link_info *info,
292 struct elfNN_ia64_dyn_sym_info *dyn_i, long dynindx,
293 bfd_vma addend, bfd_vma value, unsigned int dyn_r_type));
294 static bfd_vma set_fptr_entry
295 PARAMS ((bfd *abfd, struct bfd_link_info *info,
296 struct elfNN_ia64_dyn_sym_info *dyn_i,
297 bfd_vma value));
298 static bfd_vma set_pltoff_entry
299 PARAMS ((bfd *abfd, struct bfd_link_info *info,
300 struct elfNN_ia64_dyn_sym_info *dyn_i,
301 bfd_vma value, bfd_boolean));
302 static bfd_vma elfNN_ia64_tprel_base
303 PARAMS ((struct bfd_link_info *info));
304 static bfd_vma elfNN_ia64_dtprel_base
305 PARAMS ((struct bfd_link_info *info));
306 static int elfNN_ia64_unwind_entry_compare
307 PARAMS ((const PTR, const PTR));
308 static bfd_boolean elfNN_ia64_choose_gp
309 PARAMS ((bfd *abfd, struct bfd_link_info *info));
310 static bfd_boolean elfNN_ia64_final_link
311 PARAMS ((bfd *abfd, struct bfd_link_info *info));
312 static bfd_boolean elfNN_ia64_relocate_section
313 PARAMS ((bfd *output_bfd, struct bfd_link_info *info, bfd *input_bfd,
314 asection *input_section, bfd_byte *contents,
315 Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms,
316 asection **local_sections));
317 static bfd_boolean elfNN_ia64_finish_dynamic_symbol
318 PARAMS ((bfd *output_bfd, struct bfd_link_info *info,
319 struct elf_link_hash_entry *h, Elf_Internal_Sym *sym));
320 static bfd_boolean elfNN_ia64_finish_dynamic_sections
321 PARAMS ((bfd *abfd, struct bfd_link_info *info));
322 static bfd_boolean elfNN_ia64_set_private_flags
323 PARAMS ((bfd *abfd, flagword flags));
324 static bfd_boolean elfNN_ia64_merge_private_bfd_data
325 PARAMS ((bfd *ibfd, bfd *obfd));
326 static bfd_boolean elfNN_ia64_print_private_bfd_data
327 PARAMS ((bfd *abfd, PTR ptr));
328 static enum elf_reloc_type_class elfNN_ia64_reloc_type_class
329 PARAMS ((const Elf_Internal_Rela *));
330 static bfd_boolean elfNN_ia64_hpux_vec
331 PARAMS ((const bfd_target *vec));
332 static void elfNN_hpux_post_process_headers
333 PARAMS ((bfd *abfd, struct bfd_link_info *info));
334 bfd_boolean elfNN_hpux_backend_section_from_bfd_section
335 PARAMS ((bfd *abfd, asection *sec, int *retval));
336 \f
337 /* ia64-specific relocation. */
338
339 /* Perform a relocation. Not much to do here as all the hard work is
340 done in elfNN_ia64_final_link_relocate. */
341 static bfd_reloc_status_type
342 elfNN_ia64_reloc (abfd, reloc, sym, data, input_section,
343 output_bfd, error_message)
344 bfd *abfd ATTRIBUTE_UNUSED;
345 arelent *reloc;
346 asymbol *sym ATTRIBUTE_UNUSED;
347 PTR data ATTRIBUTE_UNUSED;
348 asection *input_section;
349 bfd *output_bfd;
350 char **error_message;
351 {
352 if (output_bfd)
353 {
354 reloc->address += input_section->output_offset;
355 return bfd_reloc_ok;
356 }
357
358 if (input_section->flags & SEC_DEBUGGING)
359 return bfd_reloc_continue;
360
361 *error_message = "Unsupported call to elfNN_ia64_reloc";
362 return bfd_reloc_notsupported;
363 }
364
365 #define IA64_HOWTO(TYPE, NAME, SIZE, PCREL, IN) \
366 HOWTO (TYPE, 0, SIZE, 0, PCREL, 0, complain_overflow_signed, \
367 elfNN_ia64_reloc, NAME, FALSE, 0, -1, IN)
368
369 /* This table has to be sorted according to increasing number of the
370 TYPE field. */
371 static reloc_howto_type ia64_howto_table[] =
372 {
373 IA64_HOWTO (R_IA64_NONE, "NONE", 0, FALSE, TRUE),
374
375 IA64_HOWTO (R_IA64_IMM14, "IMM14", 0, FALSE, TRUE),
376 IA64_HOWTO (R_IA64_IMM22, "IMM22", 0, FALSE, TRUE),
377 IA64_HOWTO (R_IA64_IMM64, "IMM64", 0, FALSE, TRUE),
378 IA64_HOWTO (R_IA64_DIR32MSB, "DIR32MSB", 2, FALSE, TRUE),
379 IA64_HOWTO (R_IA64_DIR32LSB, "DIR32LSB", 2, FALSE, TRUE),
380 IA64_HOWTO (R_IA64_DIR64MSB, "DIR64MSB", 4, FALSE, TRUE),
381 IA64_HOWTO (R_IA64_DIR64LSB, "DIR64LSB", 4, FALSE, TRUE),
382
383 IA64_HOWTO (R_IA64_GPREL22, "GPREL22", 0, FALSE, TRUE),
384 IA64_HOWTO (R_IA64_GPREL64I, "GPREL64I", 0, FALSE, TRUE),
385 IA64_HOWTO (R_IA64_GPREL32MSB, "GPREL32MSB", 2, FALSE, TRUE),
386 IA64_HOWTO (R_IA64_GPREL32LSB, "GPREL32LSB", 2, FALSE, TRUE),
387 IA64_HOWTO (R_IA64_GPREL64MSB, "GPREL64MSB", 4, FALSE, TRUE),
388 IA64_HOWTO (R_IA64_GPREL64LSB, "GPREL64LSB", 4, FALSE, TRUE),
389
390 IA64_HOWTO (R_IA64_LTOFF22, "LTOFF22", 0, FALSE, TRUE),
391 IA64_HOWTO (R_IA64_LTOFF64I, "LTOFF64I", 0, FALSE, TRUE),
392
393 IA64_HOWTO (R_IA64_PLTOFF22, "PLTOFF22", 0, FALSE, TRUE),
394 IA64_HOWTO (R_IA64_PLTOFF64I, "PLTOFF64I", 0, FALSE, TRUE),
395 IA64_HOWTO (R_IA64_PLTOFF64MSB, "PLTOFF64MSB", 4, FALSE, TRUE),
396 IA64_HOWTO (R_IA64_PLTOFF64LSB, "PLTOFF64LSB", 4, FALSE, TRUE),
397
398 IA64_HOWTO (R_IA64_FPTR64I, "FPTR64I", 0, FALSE, TRUE),
399 IA64_HOWTO (R_IA64_FPTR32MSB, "FPTR32MSB", 2, FALSE, TRUE),
400 IA64_HOWTO (R_IA64_FPTR32LSB, "FPTR32LSB", 2, FALSE, TRUE),
401 IA64_HOWTO (R_IA64_FPTR64MSB, "FPTR64MSB", 4, FALSE, TRUE),
402 IA64_HOWTO (R_IA64_FPTR64LSB, "FPTR64LSB", 4, FALSE, TRUE),
403
404 IA64_HOWTO (R_IA64_PCREL60B, "PCREL60B", 0, TRUE, TRUE),
405 IA64_HOWTO (R_IA64_PCREL21B, "PCREL21B", 0, TRUE, TRUE),
406 IA64_HOWTO (R_IA64_PCREL21M, "PCREL21M", 0, TRUE, TRUE),
407 IA64_HOWTO (R_IA64_PCREL21F, "PCREL21F", 0, TRUE, TRUE),
408 IA64_HOWTO (R_IA64_PCREL32MSB, "PCREL32MSB", 2, TRUE, TRUE),
409 IA64_HOWTO (R_IA64_PCREL32LSB, "PCREL32LSB", 2, TRUE, TRUE),
410 IA64_HOWTO (R_IA64_PCREL64MSB, "PCREL64MSB", 4, TRUE, TRUE),
411 IA64_HOWTO (R_IA64_PCREL64LSB, "PCREL64LSB", 4, TRUE, TRUE),
412
413 IA64_HOWTO (R_IA64_LTOFF_FPTR22, "LTOFF_FPTR22", 0, FALSE, TRUE),
414 IA64_HOWTO (R_IA64_LTOFF_FPTR64I, "LTOFF_FPTR64I", 0, FALSE, TRUE),
415 IA64_HOWTO (R_IA64_LTOFF_FPTR32MSB, "LTOFF_FPTR32MSB", 2, FALSE, TRUE),
416 IA64_HOWTO (R_IA64_LTOFF_FPTR32LSB, "LTOFF_FPTR32LSB", 2, FALSE, TRUE),
417 IA64_HOWTO (R_IA64_LTOFF_FPTR64MSB, "LTOFF_FPTR64MSB", 4, FALSE, TRUE),
418 IA64_HOWTO (R_IA64_LTOFF_FPTR64LSB, "LTOFF_FPTR64LSB", 4, FALSE, TRUE),
419
420 IA64_HOWTO (R_IA64_SEGREL32MSB, "SEGREL32MSB", 2, FALSE, TRUE),
421 IA64_HOWTO (R_IA64_SEGREL32LSB, "SEGREL32LSB", 2, FALSE, TRUE),
422 IA64_HOWTO (R_IA64_SEGREL64MSB, "SEGREL64MSB", 4, FALSE, TRUE),
423 IA64_HOWTO (R_IA64_SEGREL64LSB, "SEGREL64LSB", 4, FALSE, TRUE),
424
425 IA64_HOWTO (R_IA64_SECREL32MSB, "SECREL32MSB", 2, FALSE, TRUE),
426 IA64_HOWTO (R_IA64_SECREL32LSB, "SECREL32LSB", 2, FALSE, TRUE),
427 IA64_HOWTO (R_IA64_SECREL64MSB, "SECREL64MSB", 4, FALSE, TRUE),
428 IA64_HOWTO (R_IA64_SECREL64LSB, "SECREL64LSB", 4, FALSE, TRUE),
429
430 IA64_HOWTO (R_IA64_REL32MSB, "REL32MSB", 2, FALSE, TRUE),
431 IA64_HOWTO (R_IA64_REL32LSB, "REL32LSB", 2, FALSE, TRUE),
432 IA64_HOWTO (R_IA64_REL64MSB, "REL64MSB", 4, FALSE, TRUE),
433 IA64_HOWTO (R_IA64_REL64LSB, "REL64LSB", 4, FALSE, TRUE),
434
435 IA64_HOWTO (R_IA64_LTV32MSB, "LTV32MSB", 2, FALSE, TRUE),
436 IA64_HOWTO (R_IA64_LTV32LSB, "LTV32LSB", 2, FALSE, TRUE),
437 IA64_HOWTO (R_IA64_LTV64MSB, "LTV64MSB", 4, FALSE, TRUE),
438 IA64_HOWTO (R_IA64_LTV64LSB, "LTV64LSB", 4, FALSE, TRUE),
439
440 IA64_HOWTO (R_IA64_PCREL21BI, "PCREL21BI", 0, TRUE, TRUE),
441 IA64_HOWTO (R_IA64_PCREL22, "PCREL22", 0, TRUE, TRUE),
442 IA64_HOWTO (R_IA64_PCREL64I, "PCREL64I", 0, TRUE, TRUE),
443
444 IA64_HOWTO (R_IA64_IPLTMSB, "IPLTMSB", 4, FALSE, TRUE),
445 IA64_HOWTO (R_IA64_IPLTLSB, "IPLTLSB", 4, FALSE, TRUE),
446 IA64_HOWTO (R_IA64_COPY, "COPY", 4, FALSE, TRUE),
447 IA64_HOWTO (R_IA64_LTOFF22X, "LTOFF22X", 0, FALSE, TRUE),
448 IA64_HOWTO (R_IA64_LDXMOV, "LDXMOV", 0, FALSE, TRUE),
449
450 IA64_HOWTO (R_IA64_TPREL14, "TPREL14", 0, FALSE, FALSE),
451 IA64_HOWTO (R_IA64_TPREL22, "TPREL22", 0, FALSE, FALSE),
452 IA64_HOWTO (R_IA64_TPREL64I, "TPREL64I", 0, FALSE, FALSE),
453 IA64_HOWTO (R_IA64_TPREL64MSB, "TPREL64MSB", 4, FALSE, FALSE),
454 IA64_HOWTO (R_IA64_TPREL64LSB, "TPREL64LSB", 4, FALSE, FALSE),
455 IA64_HOWTO (R_IA64_LTOFF_TPREL22, "LTOFF_TPREL22", 0, FALSE, FALSE),
456
457 IA64_HOWTO (R_IA64_DTPMOD64MSB, "DTPMOD64MSB", 4, FALSE, FALSE),
458 IA64_HOWTO (R_IA64_DTPMOD64LSB, "DTPMOD64LSB", 4, FALSE, FALSE),
459 IA64_HOWTO (R_IA64_LTOFF_DTPMOD22, "LTOFF_DTPMOD22", 0, FALSE, FALSE),
460
461 IA64_HOWTO (R_IA64_DTPREL14, "DTPREL14", 0, FALSE, FALSE),
462 IA64_HOWTO (R_IA64_DTPREL22, "DTPREL22", 0, FALSE, FALSE),
463 IA64_HOWTO (R_IA64_DTPREL64I, "DTPREL64I", 0, FALSE, FALSE),
464 IA64_HOWTO (R_IA64_DTPREL32MSB, "DTPREL32MSB", 2, FALSE, FALSE),
465 IA64_HOWTO (R_IA64_DTPREL32LSB, "DTPREL32LSB", 2, FALSE, FALSE),
466 IA64_HOWTO (R_IA64_DTPREL64MSB, "DTPREL64MSB", 4, FALSE, FALSE),
467 IA64_HOWTO (R_IA64_DTPREL64LSB, "DTPREL64LSB", 4, FALSE, FALSE),
468 IA64_HOWTO (R_IA64_LTOFF_DTPREL22, "LTOFF_DTPREL22", 0, FALSE, FALSE),
469 };
470
471 static unsigned char elf_code_to_howto_index[R_IA64_MAX_RELOC_CODE + 1];
472
473 /* Given a BFD reloc type, return the matching HOWTO structure. */
474
475 static reloc_howto_type *
476 lookup_howto (rtype)
477 unsigned int rtype;
478 {
479 static int inited = 0;
480 int i;
481
482 if (!inited)
483 {
484 inited = 1;
485
486 memset (elf_code_to_howto_index, 0xff, sizeof (elf_code_to_howto_index));
487 for (i = 0; i < NELEMS (ia64_howto_table); ++i)
488 elf_code_to_howto_index[ia64_howto_table[i].type] = i;
489 }
490
491 if (rtype > R_IA64_MAX_RELOC_CODE)
492 return 0;
493 i = elf_code_to_howto_index[rtype];
494 if (i >= NELEMS (ia64_howto_table))
495 return 0;
496 return ia64_howto_table + i;
497 }
498
499 static reloc_howto_type*
500 elfNN_ia64_reloc_type_lookup (abfd, bfd_code)
501 bfd *abfd ATTRIBUTE_UNUSED;
502 bfd_reloc_code_real_type bfd_code;
503 {
504 unsigned int rtype;
505
506 switch (bfd_code)
507 {
508 case BFD_RELOC_NONE: rtype = R_IA64_NONE; break;
509
510 case BFD_RELOC_IA64_IMM14: rtype = R_IA64_IMM14; break;
511 case BFD_RELOC_IA64_IMM22: rtype = R_IA64_IMM22; break;
512 case BFD_RELOC_IA64_IMM64: rtype = R_IA64_IMM64; break;
513
514 case BFD_RELOC_IA64_DIR32MSB: rtype = R_IA64_DIR32MSB; break;
515 case BFD_RELOC_IA64_DIR32LSB: rtype = R_IA64_DIR32LSB; break;
516 case BFD_RELOC_IA64_DIR64MSB: rtype = R_IA64_DIR64MSB; break;
517 case BFD_RELOC_IA64_DIR64LSB: rtype = R_IA64_DIR64LSB; break;
518
519 case BFD_RELOC_IA64_GPREL22: rtype = R_IA64_GPREL22; break;
520 case BFD_RELOC_IA64_GPREL64I: rtype = R_IA64_GPREL64I; break;
521 case BFD_RELOC_IA64_GPREL32MSB: rtype = R_IA64_GPREL32MSB; break;
522 case BFD_RELOC_IA64_GPREL32LSB: rtype = R_IA64_GPREL32LSB; break;
523 case BFD_RELOC_IA64_GPREL64MSB: rtype = R_IA64_GPREL64MSB; break;
524 case BFD_RELOC_IA64_GPREL64LSB: rtype = R_IA64_GPREL64LSB; break;
525
526 case BFD_RELOC_IA64_LTOFF22: rtype = R_IA64_LTOFF22; break;
527 case BFD_RELOC_IA64_LTOFF64I: rtype = R_IA64_LTOFF64I; break;
528
529 case BFD_RELOC_IA64_PLTOFF22: rtype = R_IA64_PLTOFF22; break;
530 case BFD_RELOC_IA64_PLTOFF64I: rtype = R_IA64_PLTOFF64I; break;
531 case BFD_RELOC_IA64_PLTOFF64MSB: rtype = R_IA64_PLTOFF64MSB; break;
532 case BFD_RELOC_IA64_PLTOFF64LSB: rtype = R_IA64_PLTOFF64LSB; break;
533 case BFD_RELOC_IA64_FPTR64I: rtype = R_IA64_FPTR64I; break;
534 case BFD_RELOC_IA64_FPTR32MSB: rtype = R_IA64_FPTR32MSB; break;
535 case BFD_RELOC_IA64_FPTR32LSB: rtype = R_IA64_FPTR32LSB; break;
536 case BFD_RELOC_IA64_FPTR64MSB: rtype = R_IA64_FPTR64MSB; break;
537 case BFD_RELOC_IA64_FPTR64LSB: rtype = R_IA64_FPTR64LSB; break;
538
539 case BFD_RELOC_IA64_PCREL21B: rtype = R_IA64_PCREL21B; break;
540 case BFD_RELOC_IA64_PCREL21BI: rtype = R_IA64_PCREL21BI; break;
541 case BFD_RELOC_IA64_PCREL21M: rtype = R_IA64_PCREL21M; break;
542 case BFD_RELOC_IA64_PCREL21F: rtype = R_IA64_PCREL21F; break;
543 case BFD_RELOC_IA64_PCREL22: rtype = R_IA64_PCREL22; break;
544 case BFD_RELOC_IA64_PCREL60B: rtype = R_IA64_PCREL60B; break;
545 case BFD_RELOC_IA64_PCREL64I: rtype = R_IA64_PCREL64I; break;
546 case BFD_RELOC_IA64_PCREL32MSB: rtype = R_IA64_PCREL32MSB; break;
547 case BFD_RELOC_IA64_PCREL32LSB: rtype = R_IA64_PCREL32LSB; break;
548 case BFD_RELOC_IA64_PCREL64MSB: rtype = R_IA64_PCREL64MSB; break;
549 case BFD_RELOC_IA64_PCREL64LSB: rtype = R_IA64_PCREL64LSB; break;
550
551 case BFD_RELOC_IA64_LTOFF_FPTR22: rtype = R_IA64_LTOFF_FPTR22; break;
552 case BFD_RELOC_IA64_LTOFF_FPTR64I: rtype = R_IA64_LTOFF_FPTR64I; break;
553 case BFD_RELOC_IA64_LTOFF_FPTR32MSB: rtype = R_IA64_LTOFF_FPTR32MSB; break;
554 case BFD_RELOC_IA64_LTOFF_FPTR32LSB: rtype = R_IA64_LTOFF_FPTR32LSB; break;
555 case BFD_RELOC_IA64_LTOFF_FPTR64MSB: rtype = R_IA64_LTOFF_FPTR64MSB; break;
556 case BFD_RELOC_IA64_LTOFF_FPTR64LSB: rtype = R_IA64_LTOFF_FPTR64LSB; break;
557
558 case BFD_RELOC_IA64_SEGREL32MSB: rtype = R_IA64_SEGREL32MSB; break;
559 case BFD_RELOC_IA64_SEGREL32LSB: rtype = R_IA64_SEGREL32LSB; break;
560 case BFD_RELOC_IA64_SEGREL64MSB: rtype = R_IA64_SEGREL64MSB; break;
561 case BFD_RELOC_IA64_SEGREL64LSB: rtype = R_IA64_SEGREL64LSB; break;
562
563 case BFD_RELOC_IA64_SECREL32MSB: rtype = R_IA64_SECREL32MSB; break;
564 case BFD_RELOC_IA64_SECREL32LSB: rtype = R_IA64_SECREL32LSB; break;
565 case BFD_RELOC_IA64_SECREL64MSB: rtype = R_IA64_SECREL64MSB; break;
566 case BFD_RELOC_IA64_SECREL64LSB: rtype = R_IA64_SECREL64LSB; break;
567
568 case BFD_RELOC_IA64_REL32MSB: rtype = R_IA64_REL32MSB; break;
569 case BFD_RELOC_IA64_REL32LSB: rtype = R_IA64_REL32LSB; break;
570 case BFD_RELOC_IA64_REL64MSB: rtype = R_IA64_REL64MSB; break;
571 case BFD_RELOC_IA64_REL64LSB: rtype = R_IA64_REL64LSB; break;
572
573 case BFD_RELOC_IA64_LTV32MSB: rtype = R_IA64_LTV32MSB; break;
574 case BFD_RELOC_IA64_LTV32LSB: rtype = R_IA64_LTV32LSB; break;
575 case BFD_RELOC_IA64_LTV64MSB: rtype = R_IA64_LTV64MSB; break;
576 case BFD_RELOC_IA64_LTV64LSB: rtype = R_IA64_LTV64LSB; break;
577
578 case BFD_RELOC_IA64_IPLTMSB: rtype = R_IA64_IPLTMSB; break;
579 case BFD_RELOC_IA64_IPLTLSB: rtype = R_IA64_IPLTLSB; break;
580 case BFD_RELOC_IA64_COPY: rtype = R_IA64_COPY; break;
581 case BFD_RELOC_IA64_LTOFF22X: rtype = R_IA64_LTOFF22X; break;
582 case BFD_RELOC_IA64_LDXMOV: rtype = R_IA64_LDXMOV; break;
583
584 case BFD_RELOC_IA64_TPREL14: rtype = R_IA64_TPREL14; break;
585 case BFD_RELOC_IA64_TPREL22: rtype = R_IA64_TPREL22; break;
586 case BFD_RELOC_IA64_TPREL64I: rtype = R_IA64_TPREL64I; break;
587 case BFD_RELOC_IA64_TPREL64MSB: rtype = R_IA64_TPREL64MSB; break;
588 case BFD_RELOC_IA64_TPREL64LSB: rtype = R_IA64_TPREL64LSB; break;
589 case BFD_RELOC_IA64_LTOFF_TPREL22: rtype = R_IA64_LTOFF_TPREL22; break;
590
591 case BFD_RELOC_IA64_DTPMOD64MSB: rtype = R_IA64_DTPMOD64MSB; break;
592 case BFD_RELOC_IA64_DTPMOD64LSB: rtype = R_IA64_DTPMOD64LSB; break;
593 case BFD_RELOC_IA64_LTOFF_DTPMOD22: rtype = R_IA64_LTOFF_DTPMOD22; break;
594
595 case BFD_RELOC_IA64_DTPREL14: rtype = R_IA64_DTPREL14; break;
596 case BFD_RELOC_IA64_DTPREL22: rtype = R_IA64_DTPREL22; break;
597 case BFD_RELOC_IA64_DTPREL64I: rtype = R_IA64_DTPREL64I; break;
598 case BFD_RELOC_IA64_DTPREL32MSB: rtype = R_IA64_DTPREL32MSB; break;
599 case BFD_RELOC_IA64_DTPREL32LSB: rtype = R_IA64_DTPREL32LSB; break;
600 case BFD_RELOC_IA64_DTPREL64MSB: rtype = R_IA64_DTPREL64MSB; break;
601 case BFD_RELOC_IA64_DTPREL64LSB: rtype = R_IA64_DTPREL64LSB; break;
602 case BFD_RELOC_IA64_LTOFF_DTPREL22: rtype = R_IA64_LTOFF_DTPREL22; break;
603
604 default: return 0;
605 }
606 return lookup_howto (rtype);
607 }
608
609 /* Given a ELF reloc, return the matching HOWTO structure. */
610
611 static void
612 elfNN_ia64_info_to_howto (abfd, bfd_reloc, elf_reloc)
613 bfd *abfd ATTRIBUTE_UNUSED;
614 arelent *bfd_reloc;
615 Elf_Internal_Rela *elf_reloc;
616 {
617 bfd_reloc->howto
618 = lookup_howto ((unsigned int) ELFNN_R_TYPE (elf_reloc->r_info));
619 }
620 \f
621 #define PLT_HEADER_SIZE (3 * 16)
622 #define PLT_MIN_ENTRY_SIZE (1 * 16)
623 #define PLT_FULL_ENTRY_SIZE (2 * 16)
624 #define PLT_RESERVED_WORDS 3
625
626 static const bfd_byte plt_header[PLT_HEADER_SIZE] =
627 {
628 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
629 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
630 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
631 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
632 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
633 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
634 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
635 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
636 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
637 };
638
639 static const bfd_byte plt_min_entry[PLT_MIN_ENTRY_SIZE] =
640 {
641 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
642 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
643 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
644 };
645
646 static const bfd_byte plt_full_entry[PLT_FULL_ENTRY_SIZE] =
647 {
648 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
649 0x00, 0x41, 0x3c, 0x70, 0x29, 0xc0, /* ld8.acq r16=[r15],8*/
650 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
651 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
652 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
653 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
654 };
655
656 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
657
658 static const bfd_byte oor_brl[16] =
659 {
660 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
661 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
662 0x00, 0x00, 0x00, 0xc0
663 };
664
665 static const bfd_byte oor_ip[48] =
666 {
667 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
668 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
669 0x01, 0x00, 0x00, 0x60,
670 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
671 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
672 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
673 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
674 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
675 0x60, 0x00, 0x80, 0x00 /* br b6;; */
676 };
677
678 static size_t oor_branch_size = sizeof (oor_brl);
679
680 void
681 bfd_elfNN_ia64_after_parse (int itanium)
682 {
683 oor_branch_size = itanium ? sizeof (oor_ip) : sizeof (oor_brl);
684 }
685
686 #define BTYPE_SHIFT 6
687 #define Y_SHIFT 26
688 #define X6_SHIFT 27
689 #define X4_SHIFT 27
690 #define X3_SHIFT 33
691 #define X2_SHIFT 31
692 #define X_SHIFT 33
693 #define OPCODE_SHIFT 37
694
695 #define OPCODE_BITS (0xfLL << OPCODE_SHIFT)
696 #define X6_BITS (0x3fLL << X6_SHIFT)
697 #define X4_BITS (0xfLL << X4_SHIFT)
698 #define X3_BITS (0x7LL << X3_SHIFT)
699 #define X2_BITS (0x3LL << X2_SHIFT)
700 #define X_BITS (0x1LL << X_SHIFT)
701 #define Y_BITS (0x1LL << Y_SHIFT)
702 #define BTYPE_BITS (0x7LL << BTYPE_SHIFT)
703 #define PREDICATE_BITS (0x3fLL)
704
705 #define IS_NOP_B(i) \
706 (((i) & (OPCODE_BITS | X6_BITS)) == (2LL << OPCODE_SHIFT))
707 #define IS_NOP_F(i) \
708 (((i) & (OPCODE_BITS | X_BITS | X6_BITS | Y_BITS)) \
709 == (0x1LL << X6_SHIFT))
710 #define IS_NOP_I(i) \
711 (((i) & (OPCODE_BITS | X3_BITS | X6_BITS | Y_BITS)) \
712 == (0x1LL << X6_SHIFT))
713 #define IS_NOP_M(i) \
714 (((i) & (OPCODE_BITS | X3_BITS | X2_BITS | X4_BITS | Y_BITS)) \
715 == (0x1LL << X4_SHIFT))
716 #define IS_BR_COND(i) \
717 (((i) & (OPCODE_BITS | BTYPE_BITS)) == (0x4LL << OPCODE_SHIFT))
718 #define IS_BR_CALL(i) \
719 (((i) & OPCODE_BITS) == (0x5LL << OPCODE_SHIFT))
720
721 static bfd_boolean
722 elfNN_ia64_relax_br (bfd_byte *contents, bfd_vma off)
723 {
724 unsigned int template, mlx;
725 bfd_vma t0, t1, s0, s1, s2, br_code;
726 long br_slot;
727 bfd_byte *hit_addr;
728
729 hit_addr = (bfd_byte *) (contents + off);
730 br_slot = (long) hit_addr & 0x3;
731 hit_addr -= br_slot;
732 t0 = bfd_getl64 (hit_addr + 0);
733 t1 = bfd_getl64 (hit_addr + 8);
734
735 /* Check if we can turn br into brl. A label is always at the start
736 of the bundle. Even if there are predicates on NOPs, we still
737 perform this optimization. */
738 template = t0 & 0x1e;
739 s0 = (t0 >> 5) & 0x1ffffffffffLL;
740 s1 = ((t0 >> 46) | (t1 << 18)) & 0x1ffffffffffLL;
741 s2 = (t1 >> 23) & 0x1ffffffffffLL;
742 switch (br_slot)
743 {
744 case 0:
745 /* Check if slot 1 and slot 2 are NOPs. Possible template is
746 BBB. We only need to check nop.b. */
747 if (!(IS_NOP_B (s1) && IS_NOP_B (s2)))
748 return FALSE;
749 br_code = s0;
750 break;
751 case 1:
752 /* Check if slot 2 is NOP. Possible templates are MBB and BBB.
753 For BBB, slot 0 also has to be nop.b. */
754 if (!((template == 0x12 /* MBB */
755 && IS_NOP_B (s2))
756 || (template == 0x16 /* BBB */
757 && IS_NOP_B (s0)
758 && IS_NOP_B (s2))))
759 return FALSE;
760 br_code = s1;
761 break;
762 case 2:
763 /* Check if slot 1 is NOP. Possible templates are MIB, MBB, BBB,
764 MMB and MFB. For BBB, slot 0 also has to be nop.b. */
765 if (!((template == 0x10 /* MIB */
766 && IS_NOP_I (s1))
767 || (template == 0x12 /* MBB */
768 && IS_NOP_B (s1))
769 || (template == 0x16 /* BBB */
770 && IS_NOP_B (s0)
771 && IS_NOP_B (s1))
772 || (template == 0x18 /* MMB */
773 && IS_NOP_M (s1))
774 || (template == 0x1c /* MFB */
775 && IS_NOP_F (s1))))
776 return FALSE;
777 br_code = s2;
778 break;
779 default:
780 /* It should never happen. */
781 abort ();
782 }
783
784 /* We can turn br.cond/br.call into brl.cond/brl.call. */
785 if (!(IS_BR_COND (br_code) || IS_BR_CALL (br_code)))
786 return FALSE;
787
788 /* Turn br into brl by setting bit 40. */
789 br_code |= 0x1LL << 40;
790
791 /* Turn the old bundle into a MLX bundle with the same stop-bit
792 variety. */
793 if (t0 & 0x1)
794 mlx = 0x5;
795 else
796 mlx = 0x4;
797
798 if (template == 0x16)
799 {
800 /* For BBB, we need to put nop.m in slot 0. We keep the original
801 predicate only if slot 0 isn't br. */
802 if (br_slot == 0)
803 t0 = 0LL;
804 else
805 t0 &= PREDICATE_BITS << 5;
806 t0 |= 0x1LL << (X4_SHIFT + 5);
807 }
808 else
809 {
810 /* Keep the original instruction in slot 0. */
811 t0 &= 0x1ffffffffffLL << 5;
812 }
813
814 t0 |= mlx;
815
816 /* Put brl in slot 1. */
817 t1 = br_code << 23;
818
819 bfd_putl64 (t0, hit_addr);
820 bfd_putl64 (t1, hit_addr + 8);
821 return TRUE;
822 }
823
824 static void
825 elfNN_ia64_relax_brl (bfd_byte *contents, bfd_vma off)
826 {
827 int template;
828 bfd_byte *hit_addr;
829 bfd_vma t0, t1, i0, i1, i2;
830
831 hit_addr = (bfd_byte *) (contents + off);
832 hit_addr -= (long) hit_addr & 0x3;
833 t0 = bfd_getl64 (hit_addr);
834 t1 = bfd_getl64 (hit_addr + 8);
835
836 /* Keep the instruction in slot 0. */
837 i0 = (t0 >> 5) & 0x1ffffffffffLL;
838 /* Use nop.b for slot 1. */
839 i1 = 0x4000000000LL;
840 /* For slot 2, turn brl into br by masking out bit 40. */
841 i2 = (t1 >> 23) & 0x0ffffffffffLL;
842
843 /* Turn a MLX bundle into a MBB bundle with the same stop-bit
844 variety. */
845 if (t0 & 0x1)
846 template = 0x13;
847 else
848 template = 0x12;
849 t0 = (i1 << 46) | (i0 << 5) | template;
850 t1 = (i2 << 23) | (i1 >> 18);
851
852 bfd_putl64 (t0, hit_addr);
853 bfd_putl64 (t1, hit_addr + 8);
854 }
855 \f
856 /* These functions do relaxation for IA-64 ELF. */
857
858 static bfd_boolean
859 elfNN_ia64_relax_section (abfd, sec, link_info, again)
860 bfd *abfd;
861 asection *sec;
862 struct bfd_link_info *link_info;
863 bfd_boolean *again;
864 {
865 struct one_fixup
866 {
867 struct one_fixup *next;
868 asection *tsec;
869 bfd_vma toff;
870 bfd_vma trampoff;
871 };
872
873 Elf_Internal_Shdr *symtab_hdr;
874 Elf_Internal_Rela *internal_relocs;
875 Elf_Internal_Rela *irel, *irelend;
876 bfd_byte *contents;
877 Elf_Internal_Sym *isymbuf = NULL;
878 struct elfNN_ia64_link_hash_table *ia64_info;
879 struct one_fixup *fixups = NULL;
880 bfd_boolean changed_contents = FALSE;
881 bfd_boolean changed_relocs = FALSE;
882 bfd_boolean changed_got = FALSE;
883 bfd_vma gp = 0;
884
885 /* Assume we're not going to change any sizes, and we'll only need
886 one pass. */
887 *again = FALSE;
888
889 /* Don't even try to relax for non-ELF outputs. */
890 if (!is_elf_hash_table (link_info->hash))
891 return FALSE;
892
893 /* Nothing to do if there are no relocations or there is no need for
894 the relax finalize pass. */
895 if ((sec->flags & SEC_RELOC) == 0
896 || sec->reloc_count == 0
897 || (!link_info->need_relax_finalize
898 && sec->need_finalize_relax == 0))
899 return TRUE;
900
901 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
902
903 /* Load the relocations for this section. */
904 internal_relocs = (_bfd_elf_link_read_relocs
905 (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
906 link_info->keep_memory));
907 if (internal_relocs == NULL)
908 return FALSE;
909
910 ia64_info = elfNN_ia64_hash_table (link_info);
911 irelend = internal_relocs + sec->reloc_count;
912
913 /* Get the section contents. */
914 if (elf_section_data (sec)->this_hdr.contents != NULL)
915 contents = elf_section_data (sec)->this_hdr.contents;
916 else
917 {
918 if (!bfd_malloc_and_get_section (abfd, sec, &contents))
919 goto error_return;
920 }
921
922 for (irel = internal_relocs; irel < irelend; irel++)
923 {
924 unsigned long r_type = ELFNN_R_TYPE (irel->r_info);
925 bfd_vma symaddr, reladdr, trampoff, toff, roff;
926 asection *tsec;
927 struct one_fixup *f;
928 bfd_size_type amt;
929 bfd_boolean is_branch;
930 struct elfNN_ia64_dyn_sym_info *dyn_i;
931 char symtype;
932
933 switch (r_type)
934 {
935 case R_IA64_PCREL21B:
936 case R_IA64_PCREL21BI:
937 case R_IA64_PCREL21M:
938 case R_IA64_PCREL21F:
939 /* In the finalize pass, all br relaxations are done. We can
940 skip it. */
941 if (!link_info->need_relax_finalize)
942 continue;
943 is_branch = TRUE;
944 break;
945
946 case R_IA64_PCREL60B:
947 /* We can't optimize brl to br before the finalize pass since
948 br relaxations will increase the code size. Defer it to
949 the finalize pass. */
950 if (link_info->need_relax_finalize)
951 {
952 sec->need_finalize_relax = 1;
953 continue;
954 }
955 is_branch = TRUE;
956 break;
957
958 case R_IA64_LTOFF22X:
959 case R_IA64_LDXMOV:
960 /* We can't relax ldx/mov before the finalize pass since
961 br relaxations will increase the code size. Defer it to
962 the finalize pass. */
963 if (link_info->need_relax_finalize)
964 {
965 sec->need_finalize_relax = 1;
966 continue;
967 }
968 is_branch = FALSE;
969 break;
970
971 default:
972 continue;
973 }
974
975 /* Get the value of the symbol referred to by the reloc. */
976 if (ELFNN_R_SYM (irel->r_info) < symtab_hdr->sh_info)
977 {
978 /* A local symbol. */
979 Elf_Internal_Sym *isym;
980
981 /* Read this BFD's local symbols. */
982 if (isymbuf == NULL)
983 {
984 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
985 if (isymbuf == NULL)
986 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
987 symtab_hdr->sh_info, 0,
988 NULL, NULL, NULL);
989 if (isymbuf == 0)
990 goto error_return;
991 }
992
993 isym = isymbuf + ELFNN_R_SYM (irel->r_info);
994 if (isym->st_shndx == SHN_UNDEF)
995 continue; /* We can't do anything with undefined symbols. */
996 else if (isym->st_shndx == SHN_ABS)
997 tsec = bfd_abs_section_ptr;
998 else if (isym->st_shndx == SHN_COMMON)
999 tsec = bfd_com_section_ptr;
1000 else if (isym->st_shndx == SHN_IA_64_ANSI_COMMON)
1001 tsec = bfd_com_section_ptr;
1002 else
1003 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
1004
1005 toff = isym->st_value;
1006 dyn_i = get_dyn_sym_info (ia64_info, NULL, abfd, irel, FALSE);
1007 symtype = ELF_ST_TYPE (isym->st_info);
1008 }
1009 else
1010 {
1011 unsigned long indx;
1012 struct elf_link_hash_entry *h;
1013
1014 indx = ELFNN_R_SYM (irel->r_info) - symtab_hdr->sh_info;
1015 h = elf_sym_hashes (abfd)[indx];
1016 BFD_ASSERT (h != NULL);
1017
1018 while (h->root.type == bfd_link_hash_indirect
1019 || h->root.type == bfd_link_hash_warning)
1020 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1021
1022 dyn_i = get_dyn_sym_info (ia64_info, h, abfd, irel, FALSE);
1023
1024 /* For branches to dynamic symbols, we're interested instead
1025 in a branch to the PLT entry. */
1026 if (is_branch && dyn_i && dyn_i->want_plt2)
1027 {
1028 /* Internal branches shouldn't be sent to the PLT.
1029 Leave this for now and we'll give an error later. */
1030 if (r_type != R_IA64_PCREL21B)
1031 continue;
1032
1033 tsec = ia64_info->plt_sec;
1034 toff = dyn_i->plt2_offset;
1035 BFD_ASSERT (irel->r_addend == 0);
1036 }
1037
1038 /* Can't do anything else with dynamic symbols. */
1039 else if (elfNN_ia64_dynamic_symbol_p (h, link_info, r_type))
1040 continue;
1041
1042 else
1043 {
1044 /* We can't do anything with undefined symbols. */
1045 if (h->root.type == bfd_link_hash_undefined
1046 || h->root.type == bfd_link_hash_undefweak)
1047 continue;
1048
1049 tsec = h->root.u.def.section;
1050 toff = h->root.u.def.value;
1051 }
1052
1053 symtype = h->type;
1054 }
1055
1056 if (tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
1057 {
1058 /* At this stage in linking, no SEC_MERGE symbol has been
1059 adjusted, so all references to such symbols need to be
1060 passed through _bfd_merged_section_offset. (Later, in
1061 relocate_section, all SEC_MERGE symbols *except* for
1062 section symbols have been adjusted.)
1063
1064 gas may reduce relocations against symbols in SEC_MERGE
1065 sections to a relocation against the section symbol when
1066 the original addend was zero. When the reloc is against
1067 a section symbol we should include the addend in the
1068 offset passed to _bfd_merged_section_offset, since the
1069 location of interest is the original symbol. On the
1070 other hand, an access to "sym+addend" where "sym" is not
1071 a section symbol should not include the addend; Such an
1072 access is presumed to be an offset from "sym"; The
1073 location of interest is just "sym". */
1074 if (symtype == STT_SECTION)
1075 toff += irel->r_addend;
1076
1077 toff = _bfd_merged_section_offset (abfd, &tsec,
1078 elf_section_data (tsec)->sec_info,
1079 toff);
1080
1081 if (symtype != STT_SECTION)
1082 toff += irel->r_addend;
1083 }
1084 else
1085 toff += irel->r_addend;
1086
1087 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
1088
1089 roff = irel->r_offset;
1090
1091 if (is_branch)
1092 {
1093 bfd_signed_vma offset;
1094
1095 reladdr = (sec->output_section->vma
1096 + sec->output_offset
1097 + roff) & (bfd_vma) -4;
1098
1099 /* If the branch is in range, no need to do anything. */
1100 if ((bfd_signed_vma) (symaddr - reladdr) >= -0x1000000
1101 && (bfd_signed_vma) (symaddr - reladdr) <= 0x0FFFFF0)
1102 {
1103 /* If the 60-bit branch is in 21-bit range, optimize it. */
1104 if (r_type == R_IA64_PCREL60B)
1105 {
1106 elfNN_ia64_relax_brl (contents, roff);
1107
1108 irel->r_info
1109 = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
1110 R_IA64_PCREL21B);
1111
1112 /* If the original relocation offset points to slot
1113 1, change it to slot 2. */
1114 if ((irel->r_offset & 3) == 1)
1115 irel->r_offset += 1;
1116 }
1117
1118 continue;
1119 }
1120 else if (r_type == R_IA64_PCREL60B)
1121 continue;
1122 else if (elfNN_ia64_relax_br (contents, roff))
1123 {
1124 irel->r_info
1125 = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
1126 R_IA64_PCREL60B);
1127
1128 /* Make the relocation offset point to slot 1. */
1129 irel->r_offset = (irel->r_offset & ~((bfd_vma) 0x3)) + 1;
1130 continue;
1131 }
1132
1133 /* We can't put a trampoline in a .init/.fini section. Issue
1134 an error. */
1135 if (strcmp (sec->output_section->name, ".init") == 0
1136 || strcmp (sec->output_section->name, ".fini") == 0)
1137 {
1138 (*_bfd_error_handler)
1139 (_("%B: Can't relax br at 0x%lx in section `%A'. Please use brl or indirect branch."),
1140 sec->owner, sec, (unsigned long) roff);
1141 bfd_set_error (bfd_error_bad_value);
1142 goto error_return;
1143 }
1144
1145 /* If the branch and target are in the same section, you've
1146 got one honking big section and we can't help you unless
1147 you are branching backwards. You'll get an error message
1148 later. */
1149 if (tsec == sec && toff > roff)
1150 continue;
1151
1152 /* Look for an existing fixup to this address. */
1153 for (f = fixups; f ; f = f->next)
1154 if (f->tsec == tsec && f->toff == toff)
1155 break;
1156
1157 if (f == NULL)
1158 {
1159 /* Two alternatives: If it's a branch to a PLT entry, we can
1160 make a copy of the FULL_PLT entry. Otherwise, we'll have
1161 to use a `brl' insn to get where we're going. */
1162
1163 size_t size;
1164
1165 if (tsec == ia64_info->plt_sec)
1166 size = sizeof (plt_full_entry);
1167 else
1168 size = oor_branch_size;
1169
1170 /* Resize the current section to make room for the new branch. */
1171 trampoff = (sec->size + 15) & (bfd_vma) -16;
1172
1173 /* If trampoline is out of range, there is nothing we
1174 can do. */
1175 offset = trampoff - (roff & (bfd_vma) -4);
1176 if (offset < -0x1000000 || offset > 0x0FFFFF0)
1177 continue;
1178
1179 amt = trampoff + size;
1180 contents = (bfd_byte *) bfd_realloc (contents, amt);
1181 if (contents == NULL)
1182 goto error_return;
1183 sec->size = amt;
1184
1185 if (tsec == ia64_info->plt_sec)
1186 {
1187 memcpy (contents + trampoff, plt_full_entry, size);
1188
1189 /* Hijack the old relocation for use as the PLTOFF reloc. */
1190 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
1191 R_IA64_PLTOFF22);
1192 irel->r_offset = trampoff;
1193 }
1194 else
1195 {
1196 if (size == sizeof (oor_ip))
1197 {
1198 memcpy (contents + trampoff, oor_ip, size);
1199 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
1200 R_IA64_PCREL64I);
1201 irel->r_addend -= 16;
1202 irel->r_offset = trampoff + 2;
1203 }
1204 else
1205 {
1206 memcpy (contents + trampoff, oor_brl, size);
1207 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
1208 R_IA64_PCREL60B);
1209 irel->r_offset = trampoff + 2;
1210 }
1211
1212 }
1213
1214 /* Record the fixup so we don't do it again this section. */
1215 f = (struct one_fixup *)
1216 bfd_malloc ((bfd_size_type) sizeof (*f));
1217 f->next = fixups;
1218 f->tsec = tsec;
1219 f->toff = toff;
1220 f->trampoff = trampoff;
1221 fixups = f;
1222 }
1223 else
1224 {
1225 /* If trampoline is out of range, there is nothing we
1226 can do. */
1227 offset = f->trampoff - (roff & (bfd_vma) -4);
1228 if (offset < -0x1000000 || offset > 0x0FFFFF0)
1229 continue;
1230
1231 /* Nop out the reloc, since we're finalizing things here. */
1232 irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
1233 }
1234
1235 /* Fix up the existing branch to hit the trampoline. */
1236 if (elfNN_ia64_install_value (contents + roff, offset, r_type)
1237 != bfd_reloc_ok)
1238 goto error_return;
1239
1240 changed_contents = TRUE;
1241 changed_relocs = TRUE;
1242 }
1243 else
1244 {
1245 /* Fetch the gp. */
1246 if (gp == 0)
1247 {
1248 bfd *obfd = sec->output_section->owner;
1249 gp = _bfd_get_gp_value (obfd);
1250 if (gp == 0)
1251 {
1252 if (!elfNN_ia64_choose_gp (obfd, link_info))
1253 goto error_return;
1254 gp = _bfd_get_gp_value (obfd);
1255 }
1256 }
1257
1258 /* If the data is out of range, do nothing. */
1259 if ((bfd_signed_vma) (symaddr - gp) >= 0x200000
1260 ||(bfd_signed_vma) (symaddr - gp) < -0x200000)
1261 continue;
1262
1263 if (r_type == R_IA64_LTOFF22X)
1264 {
1265 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
1266 R_IA64_GPREL22);
1267 changed_relocs = TRUE;
1268 if (dyn_i->want_gotx)
1269 {
1270 dyn_i->want_gotx = 0;
1271 changed_got |= !dyn_i->want_got;
1272 }
1273 }
1274 else
1275 {
1276 elfNN_ia64_relax_ldxmov (contents, roff);
1277 irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
1278 changed_contents = TRUE;
1279 changed_relocs = TRUE;
1280 }
1281 }
1282 }
1283
1284 /* ??? If we created fixups, this may push the code segment large
1285 enough that the data segment moves, which will change the GP.
1286 Reset the GP so that we re-calculate next round. We need to
1287 do this at the _beginning_ of the next round; now will not do. */
1288
1289 /* Clean up and go home. */
1290 while (fixups)
1291 {
1292 struct one_fixup *f = fixups;
1293 fixups = fixups->next;
1294 free (f);
1295 }
1296
1297 if (isymbuf != NULL
1298 && symtab_hdr->contents != (unsigned char *) isymbuf)
1299 {
1300 if (! link_info->keep_memory)
1301 free (isymbuf);
1302 else
1303 {
1304 /* Cache the symbols for elf_link_input_bfd. */
1305 symtab_hdr->contents = (unsigned char *) isymbuf;
1306 }
1307 }
1308
1309 if (contents != NULL
1310 && elf_section_data (sec)->this_hdr.contents != contents)
1311 {
1312 if (!changed_contents && !link_info->keep_memory)
1313 free (contents);
1314 else
1315 {
1316 /* Cache the section contents for elf_link_input_bfd. */
1317 elf_section_data (sec)->this_hdr.contents = contents;
1318 }
1319 }
1320
1321 if (elf_section_data (sec)->relocs != internal_relocs)
1322 {
1323 if (!changed_relocs)
1324 free (internal_relocs);
1325 else
1326 elf_section_data (sec)->relocs = internal_relocs;
1327 }
1328
1329 if (changed_got)
1330 {
1331 struct elfNN_ia64_allocate_data data;
1332 data.info = link_info;
1333 data.ofs = 0;
1334 ia64_info->self_dtpmod_offset = (bfd_vma) -1;
1335
1336 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
1337 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
1338 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
1339 ia64_info->got_sec->size = data.ofs;
1340
1341 if (ia64_info->root.dynamic_sections_created)
1342 {
1343 /* Resize .rela.got. */
1344 ia64_info->rel_got_sec->size = 0;
1345 if (link_info->shared
1346 && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
1347 ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
1348 data.only_got = TRUE;
1349 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries,
1350 &data);
1351 }
1352 }
1353
1354 if (!link_info->need_relax_finalize)
1355 sec->need_finalize_relax = 0;
1356
1357 *again = changed_contents || changed_relocs;
1358 return TRUE;
1359
1360 error_return:
1361 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
1362 free (isymbuf);
1363 if (contents != NULL
1364 && elf_section_data (sec)->this_hdr.contents != contents)
1365 free (contents);
1366 if (internal_relocs != NULL
1367 && elf_section_data (sec)->relocs != internal_relocs)
1368 free (internal_relocs);
1369 return FALSE;
1370 }
1371
1372 static void
1373 elfNN_ia64_relax_ldxmov (contents, off)
1374 bfd_byte *contents;
1375 bfd_vma off;
1376 {
1377 int shift, r1, r3;
1378 bfd_vma dword, insn;
1379
1380 switch ((int)off & 0x3)
1381 {
1382 case 0: shift = 5; break;
1383 case 1: shift = 14; off += 3; break;
1384 case 2: shift = 23; off += 6; break;
1385 default:
1386 abort ();
1387 }
1388
1389 dword = bfd_getl64 (contents + off);
1390 insn = (dword >> shift) & 0x1ffffffffffLL;
1391
1392 r1 = (insn >> 6) & 127;
1393 r3 = (insn >> 20) & 127;
1394 if (r1 == r3)
1395 insn = 0x8000000; /* nop */
1396 else
1397 insn = (insn & 0x7f01fff) | 0x10800000000LL; /* (qp) mov r1 = r3 */
1398
1399 dword &= ~(0x1ffffffffffLL << shift);
1400 dword |= (insn << shift);
1401 bfd_putl64 (dword, contents + off);
1402 }
1403 \f
1404 /* Return TRUE if NAME is an unwind table section name. */
1405
1406 static inline bfd_boolean
1407 is_unwind_section_name (abfd, name)
1408 bfd *abfd;
1409 const char *name;
1410 {
1411 size_t len1, len2, len3;
1412
1413 if (elfNN_ia64_hpux_vec (abfd->xvec)
1414 && !strcmp (name, ELF_STRING_ia64_unwind_hdr))
1415 return FALSE;
1416
1417 len1 = sizeof (ELF_STRING_ia64_unwind) - 1;
1418 len2 = sizeof (ELF_STRING_ia64_unwind_info) - 1;
1419 len3 = sizeof (ELF_STRING_ia64_unwind_once) - 1;
1420 return ((strncmp (name, ELF_STRING_ia64_unwind, len1) == 0
1421 && strncmp (name, ELF_STRING_ia64_unwind_info, len2) != 0)
1422 || strncmp (name, ELF_STRING_ia64_unwind_once, len3) == 0);
1423 }
1424
1425 /* Handle an IA-64 specific section when reading an object file. This
1426 is called when bfd_section_from_shdr finds a section with an unknown
1427 type. */
1428
1429 static bfd_boolean
1430 elfNN_ia64_section_from_shdr (bfd *abfd,
1431 Elf_Internal_Shdr *hdr,
1432 const char *name,
1433 int shindex)
1434 {
1435 asection *newsect;
1436
1437 /* There ought to be a place to keep ELF backend specific flags, but
1438 at the moment there isn't one. We just keep track of the
1439 sections by their name, instead. Fortunately, the ABI gives
1440 suggested names for all the MIPS specific sections, so we will
1441 probably get away with this. */
1442 switch (hdr->sh_type)
1443 {
1444 case SHT_IA_64_UNWIND:
1445 case SHT_IA_64_HP_OPT_ANOT:
1446 break;
1447
1448 case SHT_IA_64_EXT:
1449 if (strcmp (name, ELF_STRING_ia64_archext) != 0)
1450 return FALSE;
1451 break;
1452
1453 default:
1454 return FALSE;
1455 }
1456
1457 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name, shindex))
1458 return FALSE;
1459 newsect = hdr->bfd_section;
1460
1461 return TRUE;
1462 }
1463
1464 /* Convert IA-64 specific section flags to bfd internal section flags. */
1465
1466 /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
1467 flag. */
1468
1469 static bfd_boolean
1470 elfNN_ia64_section_flags (flags, hdr)
1471 flagword *flags;
1472 const Elf_Internal_Shdr *hdr;
1473 {
1474 if (hdr->sh_flags & SHF_IA_64_SHORT)
1475 *flags |= SEC_SMALL_DATA;
1476
1477 return TRUE;
1478 }
1479
1480 /* Set the correct type for an IA-64 ELF section. We do this by the
1481 section name, which is a hack, but ought to work. */
1482
1483 static bfd_boolean
1484 elfNN_ia64_fake_sections (abfd, hdr, sec)
1485 bfd *abfd ATTRIBUTE_UNUSED;
1486 Elf_Internal_Shdr *hdr;
1487 asection *sec;
1488 {
1489 register const char *name;
1490
1491 name = bfd_get_section_name (abfd, sec);
1492
1493 if (is_unwind_section_name (abfd, name))
1494 {
1495 /* We don't have the sections numbered at this point, so sh_info
1496 is set later, in elfNN_ia64_final_write_processing. */
1497 hdr->sh_type = SHT_IA_64_UNWIND;
1498 hdr->sh_flags |= SHF_LINK_ORDER;
1499 }
1500 else if (strcmp (name, ELF_STRING_ia64_archext) == 0)
1501 hdr->sh_type = SHT_IA_64_EXT;
1502 else if (strcmp (name, ".HP.opt_annot") == 0)
1503 hdr->sh_type = SHT_IA_64_HP_OPT_ANOT;
1504 else if (strcmp (name, ".reloc") == 0)
1505 /* This is an ugly, but unfortunately necessary hack that is
1506 needed when producing EFI binaries on IA-64. It tells
1507 elf.c:elf_fake_sections() not to consider ".reloc" as a section
1508 containing ELF relocation info. We need this hack in order to
1509 be able to generate ELF binaries that can be translated into
1510 EFI applications (which are essentially COFF objects). Those
1511 files contain a COFF ".reloc" section inside an ELFNN object,
1512 which would normally cause BFD to segfault because it would
1513 attempt to interpret this section as containing relocation
1514 entries for section "oc". With this hack enabled, ".reloc"
1515 will be treated as a normal data section, which will avoid the
1516 segfault. However, you won't be able to create an ELFNN binary
1517 with a section named "oc" that needs relocations, but that's
1518 the kind of ugly side-effects you get when detecting section
1519 types based on their names... In practice, this limitation is
1520 unlikely to bite. */
1521 hdr->sh_type = SHT_PROGBITS;
1522
1523 if (sec->flags & SEC_SMALL_DATA)
1524 hdr->sh_flags |= SHF_IA_64_SHORT;
1525
1526 return TRUE;
1527 }
1528
1529 /* The final processing done just before writing out an IA-64 ELF
1530 object file. */
1531
1532 static void
1533 elfNN_ia64_final_write_processing (abfd, linker)
1534 bfd *abfd;
1535 bfd_boolean linker ATTRIBUTE_UNUSED;
1536 {
1537 Elf_Internal_Shdr *hdr;
1538 asection *s;
1539
1540 for (s = abfd->sections; s; s = s->next)
1541 {
1542 hdr = &elf_section_data (s)->this_hdr;
1543 switch (hdr->sh_type)
1544 {
1545 case SHT_IA_64_UNWIND:
1546 /* The IA-64 processor-specific ABI requires setting sh_link
1547 to the unwind section, whereas HP-UX requires sh_info to
1548 do so. For maximum compatibility, we'll set both for
1549 now... */
1550 hdr->sh_info = hdr->sh_link;
1551 break;
1552 }
1553 }
1554
1555 if (! elf_flags_init (abfd))
1556 {
1557 unsigned long flags = 0;
1558
1559 if (abfd->xvec->byteorder == BFD_ENDIAN_BIG)
1560 flags |= EF_IA_64_BE;
1561 if (bfd_get_mach (abfd) == bfd_mach_ia64_elf64)
1562 flags |= EF_IA_64_ABI64;
1563
1564 elf_elfheader(abfd)->e_flags = flags;
1565 elf_flags_init (abfd) = TRUE;
1566 }
1567 }
1568
1569 /* Hook called by the linker routine which adds symbols from an object
1570 file. We use it to put .comm items in .sbss, and not .bss. */
1571
1572 static bfd_boolean
1573 elfNN_ia64_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
1574 bfd *abfd;
1575 struct bfd_link_info *info;
1576 Elf_Internal_Sym *sym;
1577 const char **namep ATTRIBUTE_UNUSED;
1578 flagword *flagsp ATTRIBUTE_UNUSED;
1579 asection **secp;
1580 bfd_vma *valp;
1581 {
1582 if (sym->st_shndx == SHN_COMMON
1583 && !info->relocatable
1584 && sym->st_size <= elf_gp_size (abfd))
1585 {
1586 /* Common symbols less than or equal to -G nn bytes are
1587 automatically put into .sbss. */
1588
1589 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
1590
1591 if (scomm == NULL)
1592 {
1593 scomm = bfd_make_section_with_flags (abfd, ".scommon",
1594 (SEC_ALLOC
1595 | SEC_IS_COMMON
1596 | SEC_LINKER_CREATED));
1597 if (scomm == NULL)
1598 return FALSE;
1599 }
1600
1601 *secp = scomm;
1602 *valp = sym->st_size;
1603 }
1604
1605 return TRUE;
1606 }
1607
1608 /* Return the number of additional phdrs we will need. */
1609
1610 static int
1611 elfNN_ia64_additional_program_headers (abfd)
1612 bfd *abfd;
1613 {
1614 asection *s;
1615 int ret = 0;
1616
1617 /* See if we need a PT_IA_64_ARCHEXT segment. */
1618 s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1619 if (s && (s->flags & SEC_LOAD))
1620 ++ret;
1621
1622 /* Count how many PT_IA_64_UNWIND segments we need. */
1623 for (s = abfd->sections; s; s = s->next)
1624 if (is_unwind_section_name (abfd, s->name) && (s->flags & SEC_LOAD))
1625 ++ret;
1626
1627 return ret;
1628 }
1629
1630 static bfd_boolean
1631 elfNN_ia64_modify_segment_map (abfd, info)
1632 bfd *abfd;
1633 struct bfd_link_info *info ATTRIBUTE_UNUSED;
1634 {
1635 struct elf_segment_map *m, **pm;
1636 Elf_Internal_Shdr *hdr;
1637 asection *s;
1638
1639 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1640 all PT_LOAD segments. */
1641 s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1642 if (s && (s->flags & SEC_LOAD))
1643 {
1644 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
1645 if (m->p_type == PT_IA_64_ARCHEXT)
1646 break;
1647 if (m == NULL)
1648 {
1649 m = ((struct elf_segment_map *)
1650 bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
1651 if (m == NULL)
1652 return FALSE;
1653
1654 m->p_type = PT_IA_64_ARCHEXT;
1655 m->count = 1;
1656 m->sections[0] = s;
1657
1658 /* We want to put it after the PHDR and INTERP segments. */
1659 pm = &elf_tdata (abfd)->segment_map;
1660 while (*pm != NULL
1661 && ((*pm)->p_type == PT_PHDR
1662 || (*pm)->p_type == PT_INTERP))
1663 pm = &(*pm)->next;
1664
1665 m->next = *pm;
1666 *pm = m;
1667 }
1668 }
1669
1670 /* Install PT_IA_64_UNWIND segments, if needed. */
1671 for (s = abfd->sections; s; s = s->next)
1672 {
1673 hdr = &elf_section_data (s)->this_hdr;
1674 if (hdr->sh_type != SHT_IA_64_UNWIND)
1675 continue;
1676
1677 if (s && (s->flags & SEC_LOAD))
1678 {
1679 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
1680 if (m->p_type == PT_IA_64_UNWIND)
1681 {
1682 int i;
1683
1684 /* Look through all sections in the unwind segment
1685 for a match since there may be multiple sections
1686 to a segment. */
1687 for (i = m->count - 1; i >= 0; --i)
1688 if (m->sections[i] == s)
1689 break;
1690
1691 if (i >= 0)
1692 break;
1693 }
1694
1695 if (m == NULL)
1696 {
1697 m = ((struct elf_segment_map *)
1698 bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
1699 if (m == NULL)
1700 return FALSE;
1701
1702 m->p_type = PT_IA_64_UNWIND;
1703 m->count = 1;
1704 m->sections[0] = s;
1705 m->next = NULL;
1706
1707 /* We want to put it last. */
1708 pm = &elf_tdata (abfd)->segment_map;
1709 while (*pm != NULL)
1710 pm = &(*pm)->next;
1711 *pm = m;
1712 }
1713 }
1714 }
1715
1716 /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1717 the input sections for each output section in the segment and testing
1718 for SHF_IA_64_NORECOV on each. */
1719 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
1720 if (m->p_type == PT_LOAD)
1721 {
1722 int i;
1723 for (i = m->count - 1; i >= 0; --i)
1724 {
1725 struct bfd_link_order *order = m->sections[i]->map_head.link_order;
1726 while (order)
1727 {
1728 if (order->type == bfd_indirect_link_order)
1729 {
1730 asection *is = order->u.indirect.section;
1731 bfd_vma flags = elf_section_data(is)->this_hdr.sh_flags;
1732 if (flags & SHF_IA_64_NORECOV)
1733 {
1734 m->p_flags |= PF_IA_64_NORECOV;
1735 goto found;
1736 }
1737 }
1738 order = order->next;
1739 }
1740 }
1741 found:;
1742 }
1743
1744 return TRUE;
1745 }
1746
1747 /* According to the Tahoe assembler spec, all labels starting with a
1748 '.' are local. */
1749
1750 static bfd_boolean
1751 elfNN_ia64_is_local_label_name (abfd, name)
1752 bfd *abfd ATTRIBUTE_UNUSED;
1753 const char *name;
1754 {
1755 return name[0] == '.';
1756 }
1757
1758 /* Should we do dynamic things to this symbol? */
1759
1760 static bfd_boolean
1761 elfNN_ia64_dynamic_symbol_p (h, info, r_type)
1762 struct elf_link_hash_entry *h;
1763 struct bfd_link_info *info;
1764 int r_type;
1765 {
1766 bfd_boolean ignore_protected
1767 = ((r_type & 0xf8) == 0x40 /* FPTR relocs */
1768 || (r_type & 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1769
1770 return _bfd_elf_dynamic_symbol_p (h, info, ignore_protected);
1771 }
1772 \f
1773 static struct bfd_hash_entry*
1774 elfNN_ia64_new_elf_hash_entry (entry, table, string)
1775 struct bfd_hash_entry *entry;
1776 struct bfd_hash_table *table;
1777 const char *string;
1778 {
1779 struct elfNN_ia64_link_hash_entry *ret;
1780 ret = (struct elfNN_ia64_link_hash_entry *) entry;
1781
1782 /* Allocate the structure if it has not already been allocated by a
1783 subclass. */
1784 if (!ret)
1785 ret = bfd_hash_allocate (table, sizeof (*ret));
1786
1787 if (!ret)
1788 return 0;
1789
1790 /* Call the allocation method of the superclass. */
1791 ret = ((struct elfNN_ia64_link_hash_entry *)
1792 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1793 table, string));
1794
1795 ret->info = NULL;
1796 return (struct bfd_hash_entry *) ret;
1797 }
1798
1799 static void
1800 elfNN_ia64_hash_copy_indirect (bed, xdir, xind)
1801 const struct elf_backend_data *bed ATTRIBUTE_UNUSED;
1802 struct elf_link_hash_entry *xdir, *xind;
1803 {
1804 struct elfNN_ia64_link_hash_entry *dir, *ind;
1805
1806 dir = (struct elfNN_ia64_link_hash_entry *) xdir;
1807 ind = (struct elfNN_ia64_link_hash_entry *) xind;
1808
1809 /* Copy down any references that we may have already seen to the
1810 symbol which just became indirect. */
1811
1812 dir->root.ref_dynamic |= ind->root.ref_dynamic;
1813 dir->root.ref_regular |= ind->root.ref_regular;
1814 dir->root.ref_regular_nonweak |= ind->root.ref_regular_nonweak;
1815 dir->root.needs_plt |= ind->root.needs_plt;
1816
1817 if (ind->root.root.type != bfd_link_hash_indirect)
1818 return;
1819
1820 /* Copy over the got and plt data. This would have been done
1821 by check_relocs. */
1822
1823 if (dir->info == NULL)
1824 {
1825 struct elfNN_ia64_dyn_sym_info *dyn_i;
1826
1827 dir->info = dyn_i = ind->info;
1828 ind->info = NULL;
1829
1830 /* Fix up the dyn_sym_info pointers to the global symbol. */
1831 for (; dyn_i; dyn_i = dyn_i->next)
1832 dyn_i->h = &dir->root;
1833 }
1834 BFD_ASSERT (ind->info == NULL);
1835
1836 /* Copy over the dynindx. */
1837
1838 if (dir->root.dynindx == -1)
1839 {
1840 dir->root.dynindx = ind->root.dynindx;
1841 dir->root.dynstr_index = ind->root.dynstr_index;
1842 ind->root.dynindx = -1;
1843 ind->root.dynstr_index = 0;
1844 }
1845 BFD_ASSERT (ind->root.dynindx == -1);
1846 }
1847
1848 static void
1849 elfNN_ia64_hash_hide_symbol (info, xh, force_local)
1850 struct bfd_link_info *info;
1851 struct elf_link_hash_entry *xh;
1852 bfd_boolean force_local;
1853 {
1854 struct elfNN_ia64_link_hash_entry *h;
1855 struct elfNN_ia64_dyn_sym_info *dyn_i;
1856
1857 h = (struct elfNN_ia64_link_hash_entry *)xh;
1858
1859 _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
1860
1861 for (dyn_i = h->info; dyn_i; dyn_i = dyn_i->next)
1862 {
1863 dyn_i->want_plt2 = 0;
1864 dyn_i->want_plt = 0;
1865 }
1866 }
1867
1868 /* Compute a hash of a local hash entry. */
1869
1870 static hashval_t
1871 elfNN_ia64_local_htab_hash (ptr)
1872 const void *ptr;
1873 {
1874 struct elfNN_ia64_local_hash_entry *entry
1875 = (struct elfNN_ia64_local_hash_entry *) ptr;
1876
1877 return (((entry->id & 0xff) << 24) | ((entry->id & 0xff00) << 8))
1878 ^ entry->r_sym ^ (entry->id >> 16);
1879 }
1880
1881 /* Compare local hash entries. */
1882
1883 static int
1884 elfNN_ia64_local_htab_eq (ptr1, ptr2)
1885 const void *ptr1, *ptr2;
1886 {
1887 struct elfNN_ia64_local_hash_entry *entry1
1888 = (struct elfNN_ia64_local_hash_entry *) ptr1;
1889 struct elfNN_ia64_local_hash_entry *entry2
1890 = (struct elfNN_ia64_local_hash_entry *) ptr2;
1891
1892 return entry1->id == entry2->id && entry1->r_sym == entry2->r_sym;
1893 }
1894
1895 /* Create the derived linker hash table. The IA-64 ELF port uses this
1896 derived hash table to keep information specific to the IA-64 ElF
1897 linker (without using static variables). */
1898
1899 static struct bfd_link_hash_table*
1900 elfNN_ia64_hash_table_create (abfd)
1901 bfd *abfd;
1902 {
1903 struct elfNN_ia64_link_hash_table *ret;
1904
1905 ret = bfd_zmalloc ((bfd_size_type) sizeof (*ret));
1906 if (!ret)
1907 return 0;
1908
1909 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1910 elfNN_ia64_new_elf_hash_entry))
1911 {
1912 free (ret);
1913 return 0;
1914 }
1915
1916 ret->loc_hash_table = htab_try_create (1024, elfNN_ia64_local_htab_hash,
1917 elfNN_ia64_local_htab_eq, NULL);
1918 ret->loc_hash_memory = objalloc_create ();
1919 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1920 {
1921 free (ret);
1922 return 0;
1923 }
1924
1925 return &ret->root.root;
1926 }
1927
1928 /* Destroy IA-64 linker hash table. */
1929
1930 static void
1931 elfNN_ia64_hash_table_free (hash)
1932 struct bfd_link_hash_table *hash;
1933 {
1934 struct elfNN_ia64_link_hash_table *ia64_info
1935 = (struct elfNN_ia64_link_hash_table *) hash;
1936 if (ia64_info->loc_hash_table)
1937 htab_delete (ia64_info->loc_hash_table);
1938 if (ia64_info->loc_hash_memory)
1939 objalloc_free ((struct objalloc *) ia64_info->loc_hash_memory);
1940 _bfd_generic_link_hash_table_free (hash);
1941 }
1942
1943 /* Traverse both local and global hash tables. */
1944
1945 struct elfNN_ia64_dyn_sym_traverse_data
1946 {
1947 bfd_boolean (*func) PARAMS ((struct elfNN_ia64_dyn_sym_info *, PTR));
1948 PTR data;
1949 };
1950
1951 static bfd_boolean
1952 elfNN_ia64_global_dyn_sym_thunk (xentry, xdata)
1953 struct bfd_hash_entry *xentry;
1954 PTR xdata;
1955 {
1956 struct elfNN_ia64_link_hash_entry *entry
1957 = (struct elfNN_ia64_link_hash_entry *) xentry;
1958 struct elfNN_ia64_dyn_sym_traverse_data *data
1959 = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1960 struct elfNN_ia64_dyn_sym_info *dyn_i;
1961
1962 if (entry->root.root.type == bfd_link_hash_warning)
1963 entry = (struct elfNN_ia64_link_hash_entry *) entry->root.root.u.i.link;
1964
1965 for (dyn_i = entry->info; dyn_i; dyn_i = dyn_i->next)
1966 if (! (*data->func) (dyn_i, data->data))
1967 return FALSE;
1968 return TRUE;
1969 }
1970
1971 static bfd_boolean
1972 elfNN_ia64_local_dyn_sym_thunk (slot, xdata)
1973 void **slot;
1974 PTR xdata;
1975 {
1976 struct elfNN_ia64_local_hash_entry *entry
1977 = (struct elfNN_ia64_local_hash_entry *) *slot;
1978 struct elfNN_ia64_dyn_sym_traverse_data *data
1979 = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1980 struct elfNN_ia64_dyn_sym_info *dyn_i;
1981
1982 for (dyn_i = entry->info; dyn_i; dyn_i = dyn_i->next)
1983 if (! (*data->func) (dyn_i, data->data))
1984 return 0;
1985 return 1;
1986 }
1987
1988 static void
1989 elfNN_ia64_dyn_sym_traverse (ia64_info, func, data)
1990 struct elfNN_ia64_link_hash_table *ia64_info;
1991 bfd_boolean (*func) PARAMS ((struct elfNN_ia64_dyn_sym_info *, PTR));
1992 PTR data;
1993 {
1994 struct elfNN_ia64_dyn_sym_traverse_data xdata;
1995
1996 xdata.func = func;
1997 xdata.data = data;
1998
1999 elf_link_hash_traverse (&ia64_info->root,
2000 elfNN_ia64_global_dyn_sym_thunk, &xdata);
2001 htab_traverse (ia64_info->loc_hash_table,
2002 elfNN_ia64_local_dyn_sym_thunk, &xdata);
2003 }
2004 \f
2005 static bfd_boolean
2006 elfNN_ia64_create_dynamic_sections (abfd, info)
2007 bfd *abfd;
2008 struct bfd_link_info *info;
2009 {
2010 struct elfNN_ia64_link_hash_table *ia64_info;
2011 asection *s;
2012
2013 if (! _bfd_elf_create_dynamic_sections (abfd, info))
2014 return FALSE;
2015
2016 ia64_info = elfNN_ia64_hash_table (info);
2017
2018 ia64_info->plt_sec = bfd_get_section_by_name (abfd, ".plt");
2019 ia64_info->got_sec = bfd_get_section_by_name (abfd, ".got");
2020
2021 {
2022 flagword flags = bfd_get_section_flags (abfd, ia64_info->got_sec);
2023 bfd_set_section_flags (abfd, ia64_info->got_sec, SEC_SMALL_DATA | flags);
2024 /* The .got section is always aligned at 8 bytes. */
2025 bfd_set_section_alignment (abfd, ia64_info->got_sec, 3);
2026 }
2027
2028 if (!get_pltoff (abfd, info, ia64_info))
2029 return FALSE;
2030
2031 s = bfd_make_section_with_flags (abfd, ".rela.IA_64.pltoff",
2032 (SEC_ALLOC | SEC_LOAD
2033 | SEC_HAS_CONTENTS
2034 | SEC_IN_MEMORY
2035 | SEC_LINKER_CREATED
2036 | SEC_READONLY));
2037 if (s == NULL
2038 || !bfd_set_section_alignment (abfd, s, LOG_SECTION_ALIGN))
2039 return FALSE;
2040 ia64_info->rel_pltoff_sec = s;
2041
2042 s = bfd_make_section_with_flags (abfd, ".rela.got",
2043 (SEC_ALLOC | SEC_LOAD
2044 | SEC_HAS_CONTENTS
2045 | SEC_IN_MEMORY
2046 | SEC_LINKER_CREATED
2047 | SEC_READONLY));
2048 if (s == NULL
2049 || !bfd_set_section_alignment (abfd, s, LOG_SECTION_ALIGN))
2050 return FALSE;
2051 ia64_info->rel_got_sec = s;
2052
2053 return TRUE;
2054 }
2055
2056 /* Find and/or create a hash entry for local symbol. */
2057 static struct elfNN_ia64_local_hash_entry *
2058 get_local_sym_hash (ia64_info, abfd, rel, create)
2059 struct elfNN_ia64_link_hash_table *ia64_info;
2060 bfd *abfd;
2061 const Elf_Internal_Rela *rel;
2062 bfd_boolean create;
2063 {
2064 struct elfNN_ia64_local_hash_entry e, *ret;
2065 asection *sec = abfd->sections;
2066 hashval_t h = (((sec->id & 0xff) << 24) | ((sec->id & 0xff00) << 8))
2067 ^ ELFNN_R_SYM (rel->r_info) ^ (sec->id >> 16);
2068 void **slot;
2069
2070 e.id = sec->id;
2071 e.r_sym = ELFNN_R_SYM (rel->r_info);
2072 slot = htab_find_slot_with_hash (ia64_info->loc_hash_table, &e, h,
2073 create ? INSERT : NO_INSERT);
2074
2075 if (!slot)
2076 return NULL;
2077
2078 if (*slot)
2079 return (struct elfNN_ia64_local_hash_entry *) *slot;
2080
2081 ret = (struct elfNN_ia64_local_hash_entry *)
2082 objalloc_alloc ((struct objalloc *) ia64_info->loc_hash_memory,
2083 sizeof (struct elfNN_ia64_local_hash_entry));
2084 if (ret)
2085 {
2086 memset (ret, 0, sizeof (*ret));
2087 ret->id = sec->id;
2088 ret->r_sym = ELFNN_R_SYM (rel->r_info);
2089 *slot = ret;
2090 }
2091 return ret;
2092 }
2093
2094 /* Find and/or create a descriptor for dynamic symbol info. This will
2095 vary based on global or local symbol, and the addend to the reloc. */
2096
2097 static struct elfNN_ia64_dyn_sym_info *
2098 get_dyn_sym_info (ia64_info, h, abfd, rel, create)
2099 struct elfNN_ia64_link_hash_table *ia64_info;
2100 struct elf_link_hash_entry *h;
2101 bfd *abfd;
2102 const Elf_Internal_Rela *rel;
2103 bfd_boolean create;
2104 {
2105 struct elfNN_ia64_dyn_sym_info **pp;
2106 struct elfNN_ia64_dyn_sym_info *dyn_i;
2107 bfd_vma addend = rel ? rel->r_addend : 0;
2108
2109 if (h)
2110 pp = &((struct elfNN_ia64_link_hash_entry *)h)->info;
2111 else
2112 {
2113 struct elfNN_ia64_local_hash_entry *loc_h;
2114
2115 loc_h = get_local_sym_hash (ia64_info, abfd, rel, create);
2116 if (!loc_h)
2117 {
2118 BFD_ASSERT (!create);
2119 return NULL;
2120 }
2121
2122 pp = &loc_h->info;
2123 }
2124
2125 for (dyn_i = *pp; dyn_i && dyn_i->addend != addend; dyn_i = *pp)
2126 pp = &dyn_i->next;
2127
2128 if (dyn_i == NULL && create)
2129 {
2130 dyn_i = ((struct elfNN_ia64_dyn_sym_info *)
2131 bfd_zalloc (abfd, (bfd_size_type) sizeof *dyn_i));
2132 *pp = dyn_i;
2133 dyn_i->addend = addend;
2134 }
2135
2136 return dyn_i;
2137 }
2138
2139 static asection *
2140 get_got (abfd, info, ia64_info)
2141 bfd *abfd;
2142 struct bfd_link_info *info;
2143 struct elfNN_ia64_link_hash_table *ia64_info;
2144 {
2145 asection *got;
2146 bfd *dynobj;
2147
2148 got = ia64_info->got_sec;
2149 if (!got)
2150 {
2151 flagword flags;
2152
2153 dynobj = ia64_info->root.dynobj;
2154 if (!dynobj)
2155 ia64_info->root.dynobj = dynobj = abfd;
2156 if (!_bfd_elf_create_got_section (dynobj, info))
2157 return 0;
2158
2159 got = bfd_get_section_by_name (dynobj, ".got");
2160 BFD_ASSERT (got);
2161 ia64_info->got_sec = got;
2162
2163 /* The .got section is always aligned at 8 bytes. */
2164 if (!bfd_set_section_alignment (abfd, got, 3))
2165 return 0;
2166
2167 flags = bfd_get_section_flags (abfd, got);
2168 bfd_set_section_flags (abfd, got, SEC_SMALL_DATA | flags);
2169 }
2170
2171 return got;
2172 }
2173
2174 /* Create function descriptor section (.opd). This section is called .opd
2175 because it contains "official procedure descriptors". The "official"
2176 refers to the fact that these descriptors are used when taking the address
2177 of a procedure, thus ensuring a unique address for each procedure. */
2178
2179 static asection *
2180 get_fptr (abfd, info, ia64_info)
2181 bfd *abfd;
2182 struct bfd_link_info *info;
2183 struct elfNN_ia64_link_hash_table *ia64_info;
2184 {
2185 asection *fptr;
2186 bfd *dynobj;
2187
2188 fptr = ia64_info->fptr_sec;
2189 if (!fptr)
2190 {
2191 dynobj = ia64_info->root.dynobj;
2192 if (!dynobj)
2193 ia64_info->root.dynobj = dynobj = abfd;
2194
2195 fptr = bfd_make_section_with_flags (dynobj, ".opd",
2196 (SEC_ALLOC
2197 | SEC_LOAD
2198 | SEC_HAS_CONTENTS
2199 | SEC_IN_MEMORY
2200 | (info->pie ? 0 : SEC_READONLY)
2201 | SEC_LINKER_CREATED));
2202 if (!fptr
2203 || !bfd_set_section_alignment (abfd, fptr, 4))
2204 {
2205 BFD_ASSERT (0);
2206 return NULL;
2207 }
2208
2209 ia64_info->fptr_sec = fptr;
2210
2211 if (info->pie)
2212 {
2213 asection *fptr_rel;
2214 fptr_rel = bfd_make_section_with_flags (dynobj, ".rela.opd",
2215 (SEC_ALLOC | SEC_LOAD
2216 | SEC_HAS_CONTENTS
2217 | SEC_IN_MEMORY
2218 | SEC_LINKER_CREATED
2219 | SEC_READONLY));
2220 if (fptr_rel == NULL
2221 || !bfd_set_section_alignment (abfd, fptr_rel,
2222 LOG_SECTION_ALIGN))
2223 {
2224 BFD_ASSERT (0);
2225 return NULL;
2226 }
2227
2228 ia64_info->rel_fptr_sec = fptr_rel;
2229 }
2230 }
2231
2232 return fptr;
2233 }
2234
2235 static asection *
2236 get_pltoff (abfd, info, ia64_info)
2237 bfd *abfd;
2238 struct bfd_link_info *info ATTRIBUTE_UNUSED;
2239 struct elfNN_ia64_link_hash_table *ia64_info;
2240 {
2241 asection *pltoff;
2242 bfd *dynobj;
2243
2244 pltoff = ia64_info->pltoff_sec;
2245 if (!pltoff)
2246 {
2247 dynobj = ia64_info->root.dynobj;
2248 if (!dynobj)
2249 ia64_info->root.dynobj = dynobj = abfd;
2250
2251 pltoff = bfd_make_section_with_flags (dynobj,
2252 ELF_STRING_ia64_pltoff,
2253 (SEC_ALLOC
2254 | SEC_LOAD
2255 | SEC_HAS_CONTENTS
2256 | SEC_IN_MEMORY
2257 | SEC_SMALL_DATA
2258 | SEC_LINKER_CREATED));
2259 if (!pltoff
2260 || !bfd_set_section_alignment (abfd, pltoff, 4))
2261 {
2262 BFD_ASSERT (0);
2263 return NULL;
2264 }
2265
2266 ia64_info->pltoff_sec = pltoff;
2267 }
2268
2269 return pltoff;
2270 }
2271
2272 static asection *
2273 get_reloc_section (abfd, ia64_info, sec, create)
2274 bfd *abfd;
2275 struct elfNN_ia64_link_hash_table *ia64_info;
2276 asection *sec;
2277 bfd_boolean create;
2278 {
2279 const char *srel_name;
2280 asection *srel;
2281 bfd *dynobj;
2282
2283 srel_name = (bfd_elf_string_from_elf_section
2284 (abfd, elf_elfheader(abfd)->e_shstrndx,
2285 elf_section_data(sec)->rel_hdr.sh_name));
2286 if (srel_name == NULL)
2287 return NULL;
2288
2289 BFD_ASSERT ((strncmp (srel_name, ".rela", 5) == 0
2290 && strcmp (bfd_get_section_name (abfd, sec),
2291 srel_name+5) == 0)
2292 || (strncmp (srel_name, ".rel", 4) == 0
2293 && strcmp (bfd_get_section_name (abfd, sec),
2294 srel_name+4) == 0));
2295
2296 dynobj = ia64_info->root.dynobj;
2297 if (!dynobj)
2298 ia64_info->root.dynobj = dynobj = abfd;
2299
2300 srel = bfd_get_section_by_name (dynobj, srel_name);
2301 if (srel == NULL && create)
2302 {
2303 srel = bfd_make_section_with_flags (dynobj, srel_name,
2304 (SEC_ALLOC | SEC_LOAD
2305 | SEC_HAS_CONTENTS
2306 | SEC_IN_MEMORY
2307 | SEC_LINKER_CREATED
2308 | SEC_READONLY));
2309 if (srel == NULL
2310 || !bfd_set_section_alignment (dynobj, srel,
2311 LOG_SECTION_ALIGN))
2312 return NULL;
2313 }
2314
2315 return srel;
2316 }
2317
2318 static bfd_boolean
2319 count_dyn_reloc (bfd *abfd, struct elfNN_ia64_dyn_sym_info *dyn_i,
2320 asection *srel, int type, bfd_boolean reltext)
2321 {
2322 struct elfNN_ia64_dyn_reloc_entry *rent;
2323
2324 for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2325 if (rent->srel == srel && rent->type == type)
2326 break;
2327
2328 if (!rent)
2329 {
2330 rent = ((struct elfNN_ia64_dyn_reloc_entry *)
2331 bfd_alloc (abfd, (bfd_size_type) sizeof (*rent)));
2332 if (!rent)
2333 return FALSE;
2334
2335 rent->next = dyn_i->reloc_entries;
2336 rent->srel = srel;
2337 rent->type = type;
2338 rent->count = 0;
2339 dyn_i->reloc_entries = rent;
2340 }
2341 rent->reltext = reltext;
2342 rent->count++;
2343
2344 return TRUE;
2345 }
2346
2347 static bfd_boolean
2348 elfNN_ia64_check_relocs (abfd, info, sec, relocs)
2349 bfd *abfd;
2350 struct bfd_link_info *info;
2351 asection *sec;
2352 const Elf_Internal_Rela *relocs;
2353 {
2354 struct elfNN_ia64_link_hash_table *ia64_info;
2355 const Elf_Internal_Rela *relend;
2356 Elf_Internal_Shdr *symtab_hdr;
2357 const Elf_Internal_Rela *rel;
2358 asection *got, *fptr, *srel, *pltoff;
2359
2360 if (info->relocatable)
2361 return TRUE;
2362
2363 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2364 ia64_info = elfNN_ia64_hash_table (info);
2365
2366 got = fptr = srel = pltoff = NULL;
2367
2368 relend = relocs + sec->reloc_count;
2369 for (rel = relocs; rel < relend; ++rel)
2370 {
2371 enum {
2372 NEED_GOT = 1,
2373 NEED_GOTX = 2,
2374 NEED_FPTR = 4,
2375 NEED_PLTOFF = 8,
2376 NEED_MIN_PLT = 16,
2377 NEED_FULL_PLT = 32,
2378 NEED_DYNREL = 64,
2379 NEED_LTOFF_FPTR = 128,
2380 NEED_TPREL = 256,
2381 NEED_DTPMOD = 512,
2382 NEED_DTPREL = 1024
2383 };
2384
2385 struct elf_link_hash_entry *h = NULL;
2386 unsigned long r_symndx = ELFNN_R_SYM (rel->r_info);
2387 struct elfNN_ia64_dyn_sym_info *dyn_i;
2388 int need_entry;
2389 bfd_boolean maybe_dynamic;
2390 int dynrel_type = R_IA64_NONE;
2391
2392 if (r_symndx >= symtab_hdr->sh_info)
2393 {
2394 /* We're dealing with a global symbol -- find its hash entry
2395 and mark it as being referenced. */
2396 long indx = r_symndx - symtab_hdr->sh_info;
2397 h = elf_sym_hashes (abfd)[indx];
2398 while (h->root.type == bfd_link_hash_indirect
2399 || h->root.type == bfd_link_hash_warning)
2400 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2401
2402 h->ref_regular = 1;
2403 }
2404
2405 /* We can only get preliminary data on whether a symbol is
2406 locally or externally defined, as not all of the input files
2407 have yet been processed. Do something with what we know, as
2408 this may help reduce memory usage and processing time later. */
2409 maybe_dynamic = FALSE;
2410 if (h && ((!info->executable
2411 && (!info->symbolic
2412 || info->unresolved_syms_in_shared_libs == RM_IGNORE))
2413 || !h->def_regular
2414 || h->root.type == bfd_link_hash_defweak))
2415 maybe_dynamic = TRUE;
2416
2417 need_entry = 0;
2418 switch (ELFNN_R_TYPE (rel->r_info))
2419 {
2420 case R_IA64_TPREL64MSB:
2421 case R_IA64_TPREL64LSB:
2422 if (info->shared || maybe_dynamic)
2423 need_entry = NEED_DYNREL;
2424 dynrel_type = R_IA64_TPREL64LSB;
2425 if (info->shared)
2426 info->flags |= DF_STATIC_TLS;
2427 break;
2428
2429 case R_IA64_LTOFF_TPREL22:
2430 need_entry = NEED_TPREL;
2431 if (info->shared)
2432 info->flags |= DF_STATIC_TLS;
2433 break;
2434
2435 case R_IA64_DTPREL32MSB:
2436 case R_IA64_DTPREL32LSB:
2437 case R_IA64_DTPREL64MSB:
2438 case R_IA64_DTPREL64LSB:
2439 if (info->shared || maybe_dynamic)
2440 need_entry = NEED_DYNREL;
2441 dynrel_type = R_IA64_DTPRELNNLSB;
2442 break;
2443
2444 case R_IA64_LTOFF_DTPREL22:
2445 need_entry = NEED_DTPREL;
2446 break;
2447
2448 case R_IA64_DTPMOD64MSB:
2449 case R_IA64_DTPMOD64LSB:
2450 if (info->shared || maybe_dynamic)
2451 need_entry = NEED_DYNREL;
2452 dynrel_type = R_IA64_DTPMOD64LSB;
2453 break;
2454
2455 case R_IA64_LTOFF_DTPMOD22:
2456 need_entry = NEED_DTPMOD;
2457 break;
2458
2459 case R_IA64_LTOFF_FPTR22:
2460 case R_IA64_LTOFF_FPTR64I:
2461 case R_IA64_LTOFF_FPTR32MSB:
2462 case R_IA64_LTOFF_FPTR32LSB:
2463 case R_IA64_LTOFF_FPTR64MSB:
2464 case R_IA64_LTOFF_FPTR64LSB:
2465 need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR;
2466 break;
2467
2468 case R_IA64_FPTR64I:
2469 case R_IA64_FPTR32MSB:
2470 case R_IA64_FPTR32LSB:
2471 case R_IA64_FPTR64MSB:
2472 case R_IA64_FPTR64LSB:
2473 if (info->shared || h)
2474 need_entry = NEED_FPTR | NEED_DYNREL;
2475 else
2476 need_entry = NEED_FPTR;
2477 dynrel_type = R_IA64_FPTRNNLSB;
2478 break;
2479
2480 case R_IA64_LTOFF22:
2481 case R_IA64_LTOFF64I:
2482 need_entry = NEED_GOT;
2483 break;
2484
2485 case R_IA64_LTOFF22X:
2486 need_entry = NEED_GOTX;
2487 break;
2488
2489 case R_IA64_PLTOFF22:
2490 case R_IA64_PLTOFF64I:
2491 case R_IA64_PLTOFF64MSB:
2492 case R_IA64_PLTOFF64LSB:
2493 need_entry = NEED_PLTOFF;
2494 if (h)
2495 {
2496 if (maybe_dynamic)
2497 need_entry |= NEED_MIN_PLT;
2498 }
2499 else
2500 {
2501 (*info->callbacks->warning)
2502 (info, _("@pltoff reloc against local symbol"), 0,
2503 abfd, 0, (bfd_vma) 0);
2504 }
2505 break;
2506
2507 case R_IA64_PCREL21B:
2508 case R_IA64_PCREL60B:
2509 /* Depending on where this symbol is defined, we may or may not
2510 need a full plt entry. Only skip if we know we'll not need
2511 the entry -- static or symbolic, and the symbol definition
2512 has already been seen. */
2513 if (maybe_dynamic && rel->r_addend == 0)
2514 need_entry = NEED_FULL_PLT;
2515 break;
2516
2517 case R_IA64_IMM14:
2518 case R_IA64_IMM22:
2519 case R_IA64_IMM64:
2520 case R_IA64_DIR32MSB:
2521 case R_IA64_DIR32LSB:
2522 case R_IA64_DIR64MSB:
2523 case R_IA64_DIR64LSB:
2524 /* Shared objects will always need at least a REL relocation. */
2525 if (info->shared || maybe_dynamic)
2526 need_entry = NEED_DYNREL;
2527 dynrel_type = R_IA64_DIRNNLSB;
2528 break;
2529
2530 case R_IA64_IPLTMSB:
2531 case R_IA64_IPLTLSB:
2532 /* Shared objects will always need at least a REL relocation. */
2533 if (info->shared || maybe_dynamic)
2534 need_entry = NEED_DYNREL;
2535 dynrel_type = R_IA64_IPLTLSB;
2536 break;
2537
2538 case R_IA64_PCREL22:
2539 case R_IA64_PCREL64I:
2540 case R_IA64_PCREL32MSB:
2541 case R_IA64_PCREL32LSB:
2542 case R_IA64_PCREL64MSB:
2543 case R_IA64_PCREL64LSB:
2544 if (maybe_dynamic)
2545 need_entry = NEED_DYNREL;
2546 dynrel_type = R_IA64_PCRELNNLSB;
2547 break;
2548 }
2549
2550 if (!need_entry)
2551 continue;
2552
2553 if ((need_entry & NEED_FPTR) != 0
2554 && rel->r_addend)
2555 {
2556 (*info->callbacks->warning)
2557 (info, _("non-zero addend in @fptr reloc"), 0,
2558 abfd, 0, (bfd_vma) 0);
2559 }
2560
2561 dyn_i = get_dyn_sym_info (ia64_info, h, abfd, rel, TRUE);
2562
2563 /* Record whether or not this is a local symbol. */
2564 dyn_i->h = h;
2565
2566 /* Create what's needed. */
2567 if (need_entry & (NEED_GOT | NEED_GOTX | NEED_TPREL
2568 | NEED_DTPMOD | NEED_DTPREL))
2569 {
2570 if (!got)
2571 {
2572 got = get_got (abfd, info, ia64_info);
2573 if (!got)
2574 return FALSE;
2575 }
2576 if (need_entry & NEED_GOT)
2577 dyn_i->want_got = 1;
2578 if (need_entry & NEED_GOTX)
2579 dyn_i->want_gotx = 1;
2580 if (need_entry & NEED_TPREL)
2581 dyn_i->want_tprel = 1;
2582 if (need_entry & NEED_DTPMOD)
2583 dyn_i->want_dtpmod = 1;
2584 if (need_entry & NEED_DTPREL)
2585 dyn_i->want_dtprel = 1;
2586 }
2587 if (need_entry & NEED_FPTR)
2588 {
2589 if (!fptr)
2590 {
2591 fptr = get_fptr (abfd, info, ia64_info);
2592 if (!fptr)
2593 return FALSE;
2594 }
2595
2596 /* FPTRs for shared libraries are allocated by the dynamic
2597 linker. Make sure this local symbol will appear in the
2598 dynamic symbol table. */
2599 if (!h && info->shared)
2600 {
2601 if (! (bfd_elf_link_record_local_dynamic_symbol
2602 (info, abfd, (long) r_symndx)))
2603 return FALSE;
2604 }
2605
2606 dyn_i->want_fptr = 1;
2607 }
2608 if (need_entry & NEED_LTOFF_FPTR)
2609 dyn_i->want_ltoff_fptr = 1;
2610 if (need_entry & (NEED_MIN_PLT | NEED_FULL_PLT))
2611 {
2612 if (!ia64_info->root.dynobj)
2613 ia64_info->root.dynobj = abfd;
2614 h->needs_plt = 1;
2615 dyn_i->want_plt = 1;
2616 }
2617 if (need_entry & NEED_FULL_PLT)
2618 dyn_i->want_plt2 = 1;
2619 if (need_entry & NEED_PLTOFF)
2620 {
2621 /* This is needed here, in case @pltoff is used in a non-shared
2622 link. */
2623 if (!pltoff)
2624 {
2625 pltoff = get_pltoff (abfd, info, ia64_info);
2626 if (!pltoff)
2627 return FALSE;
2628 }
2629
2630 dyn_i->want_pltoff = 1;
2631 }
2632 if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC))
2633 {
2634 if (!srel)
2635 {
2636 srel = get_reloc_section (abfd, ia64_info, sec, TRUE);
2637 if (!srel)
2638 return FALSE;
2639 }
2640 if (!count_dyn_reloc (abfd, dyn_i, srel, dynrel_type,
2641 (sec->flags & SEC_READONLY) != 0))
2642 return FALSE;
2643 }
2644 }
2645
2646 return TRUE;
2647 }
2648
2649 /* For cleanliness, and potentially faster dynamic loading, allocate
2650 external GOT entries first. */
2651
2652 static bfd_boolean
2653 allocate_global_data_got (dyn_i, data)
2654 struct elfNN_ia64_dyn_sym_info *dyn_i;
2655 PTR data;
2656 {
2657 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2658
2659 if ((dyn_i->want_got || dyn_i->want_gotx)
2660 && ! dyn_i->want_fptr
2661 && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2662 {
2663 dyn_i->got_offset = x->ofs;
2664 x->ofs += 8;
2665 }
2666 if (dyn_i->want_tprel)
2667 {
2668 dyn_i->tprel_offset = x->ofs;
2669 x->ofs += 8;
2670 }
2671 if (dyn_i->want_dtpmod)
2672 {
2673 if (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2674 {
2675 dyn_i->dtpmod_offset = x->ofs;
2676 x->ofs += 8;
2677 }
2678 else
2679 {
2680 struct elfNN_ia64_link_hash_table *ia64_info;
2681
2682 ia64_info = elfNN_ia64_hash_table (x->info);
2683 if (ia64_info->self_dtpmod_offset == (bfd_vma) -1)
2684 {
2685 ia64_info->self_dtpmod_offset = x->ofs;
2686 x->ofs += 8;
2687 }
2688 dyn_i->dtpmod_offset = ia64_info->self_dtpmod_offset;
2689 }
2690 }
2691 if (dyn_i->want_dtprel)
2692 {
2693 dyn_i->dtprel_offset = x->ofs;
2694 x->ofs += 8;
2695 }
2696 return TRUE;
2697 }
2698
2699 /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2700
2701 static bfd_boolean
2702 allocate_global_fptr_got (dyn_i, data)
2703 struct elfNN_ia64_dyn_sym_info *dyn_i;
2704 PTR data;
2705 {
2706 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2707
2708 if (dyn_i->want_got
2709 && dyn_i->want_fptr
2710 && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, R_IA64_FPTRNNLSB))
2711 {
2712 dyn_i->got_offset = x->ofs;
2713 x->ofs += 8;
2714 }
2715 return TRUE;
2716 }
2717
2718 /* Lastly, allocate all the GOT entries for local data. */
2719
2720 static bfd_boolean
2721 allocate_local_got (dyn_i, data)
2722 struct elfNN_ia64_dyn_sym_info *dyn_i;
2723 PTR data;
2724 {
2725 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2726
2727 if ((dyn_i->want_got || dyn_i->want_gotx)
2728 && !elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2729 {
2730 dyn_i->got_offset = x->ofs;
2731 x->ofs += 8;
2732 }
2733 return TRUE;
2734 }
2735
2736 /* Search for the index of a global symbol in it's defining object file. */
2737
2738 static long
2739 global_sym_index (h)
2740 struct elf_link_hash_entry *h;
2741 {
2742 struct elf_link_hash_entry **p;
2743 bfd *obj;
2744
2745 BFD_ASSERT (h->root.type == bfd_link_hash_defined
2746 || h->root.type == bfd_link_hash_defweak);
2747
2748 obj = h->root.u.def.section->owner;
2749 for (p = elf_sym_hashes (obj); *p != h; ++p)
2750 continue;
2751
2752 return p - elf_sym_hashes (obj) + elf_tdata (obj)->symtab_hdr.sh_info;
2753 }
2754
2755 /* Allocate function descriptors. We can do these for every function
2756 in a main executable that is not exported. */
2757
2758 static bfd_boolean
2759 allocate_fptr (dyn_i, data)
2760 struct elfNN_ia64_dyn_sym_info *dyn_i;
2761 PTR data;
2762 {
2763 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2764
2765 if (dyn_i->want_fptr)
2766 {
2767 struct elf_link_hash_entry *h = dyn_i->h;
2768
2769 if (h)
2770 while (h->root.type == bfd_link_hash_indirect
2771 || h->root.type == bfd_link_hash_warning)
2772 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2773
2774 if (!x->info->executable
2775 && (!h
2776 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2777 || h->root.type != bfd_link_hash_undefweak))
2778 {
2779 if (h && h->dynindx == -1)
2780 {
2781 BFD_ASSERT ((h->root.type == bfd_link_hash_defined)
2782 || (h->root.type == bfd_link_hash_defweak));
2783
2784 if (!bfd_elf_link_record_local_dynamic_symbol
2785 (x->info, h->root.u.def.section->owner,
2786 global_sym_index (h)))
2787 return FALSE;
2788 }
2789
2790 dyn_i->want_fptr = 0;
2791 }
2792 else if (h == NULL || h->dynindx == -1)
2793 {
2794 dyn_i->fptr_offset = x->ofs;
2795 x->ofs += 16;
2796 }
2797 else
2798 dyn_i->want_fptr = 0;
2799 }
2800 return TRUE;
2801 }
2802
2803 /* Allocate all the minimal PLT entries. */
2804
2805 static bfd_boolean
2806 allocate_plt_entries (dyn_i, data)
2807 struct elfNN_ia64_dyn_sym_info *dyn_i;
2808 PTR data;
2809 {
2810 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2811
2812 if (dyn_i->want_plt)
2813 {
2814 struct elf_link_hash_entry *h = dyn_i->h;
2815
2816 if (h)
2817 while (h->root.type == bfd_link_hash_indirect
2818 || h->root.type == bfd_link_hash_warning)
2819 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2820
2821 /* ??? Versioned symbols seem to lose NEEDS_PLT. */
2822 if (elfNN_ia64_dynamic_symbol_p (h, x->info, 0))
2823 {
2824 bfd_size_type offset = x->ofs;
2825 if (offset == 0)
2826 offset = PLT_HEADER_SIZE;
2827 dyn_i->plt_offset = offset;
2828 x->ofs = offset + PLT_MIN_ENTRY_SIZE;
2829
2830 dyn_i->want_pltoff = 1;
2831 }
2832 else
2833 {
2834 dyn_i->want_plt = 0;
2835 dyn_i->want_plt2 = 0;
2836 }
2837 }
2838 return TRUE;
2839 }
2840
2841 /* Allocate all the full PLT entries. */
2842
2843 static bfd_boolean
2844 allocate_plt2_entries (dyn_i, data)
2845 struct elfNN_ia64_dyn_sym_info *dyn_i;
2846 PTR data;
2847 {
2848 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2849
2850 if (dyn_i->want_plt2)
2851 {
2852 struct elf_link_hash_entry *h = dyn_i->h;
2853 bfd_size_type ofs = x->ofs;
2854
2855 dyn_i->plt2_offset = ofs;
2856 x->ofs = ofs + PLT_FULL_ENTRY_SIZE;
2857
2858 while (h->root.type == bfd_link_hash_indirect
2859 || h->root.type == bfd_link_hash_warning)
2860 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2861 dyn_i->h->plt.offset = ofs;
2862 }
2863 return TRUE;
2864 }
2865
2866 /* Allocate all the PLTOFF entries requested by relocations and
2867 plt entries. We can't share space with allocated FPTR entries,
2868 because the latter are not necessarily addressable by the GP.
2869 ??? Relaxation might be able to determine that they are. */
2870
2871 static bfd_boolean
2872 allocate_pltoff_entries (dyn_i, data)
2873 struct elfNN_ia64_dyn_sym_info *dyn_i;
2874 PTR data;
2875 {
2876 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2877
2878 if (dyn_i->want_pltoff)
2879 {
2880 dyn_i->pltoff_offset = x->ofs;
2881 x->ofs += 16;
2882 }
2883 return TRUE;
2884 }
2885
2886 /* Allocate dynamic relocations for those symbols that turned out
2887 to be dynamic. */
2888
2889 static bfd_boolean
2890 allocate_dynrel_entries (dyn_i, data)
2891 struct elfNN_ia64_dyn_sym_info *dyn_i;
2892 PTR data;
2893 {
2894 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2895 struct elfNN_ia64_link_hash_table *ia64_info;
2896 struct elfNN_ia64_dyn_reloc_entry *rent;
2897 bfd_boolean dynamic_symbol, shared, resolved_zero;
2898
2899 ia64_info = elfNN_ia64_hash_table (x->info);
2900
2901 /* Note that this can't be used in relation to FPTR relocs below. */
2902 dynamic_symbol = elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0);
2903
2904 shared = x->info->shared;
2905 resolved_zero = (dyn_i->h
2906 && ELF_ST_VISIBILITY (dyn_i->h->other)
2907 && dyn_i->h->root.type == bfd_link_hash_undefweak);
2908
2909 /* Take care of the GOT and PLT relocations. */
2910
2911 if ((!resolved_zero
2912 && (dynamic_symbol || shared)
2913 && (dyn_i->want_got || dyn_i->want_gotx))
2914 || (dyn_i->want_ltoff_fptr
2915 && dyn_i->h
2916 && dyn_i->h->dynindx != -1))
2917 {
2918 if (!dyn_i->want_ltoff_fptr
2919 || !x->info->pie
2920 || dyn_i->h == NULL
2921 || dyn_i->h->root.type != bfd_link_hash_undefweak)
2922 ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
2923 }
2924 if ((dynamic_symbol || shared) && dyn_i->want_tprel)
2925 ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
2926 if (dynamic_symbol && dyn_i->want_dtpmod)
2927 ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
2928 if (dynamic_symbol && dyn_i->want_dtprel)
2929 ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
2930
2931 if (x->only_got)
2932 return TRUE;
2933
2934 if (ia64_info->rel_fptr_sec && dyn_i->want_fptr)
2935 {
2936 if (dyn_i->h == NULL || dyn_i->h->root.type != bfd_link_hash_undefweak)
2937 ia64_info->rel_fptr_sec->size += sizeof (ElfNN_External_Rela);
2938 }
2939
2940 if (!resolved_zero && dyn_i->want_pltoff)
2941 {
2942 bfd_size_type t = 0;
2943
2944 /* Dynamic symbols get one IPLT relocation. Local symbols in
2945 shared libraries get two REL relocations. Local symbols in
2946 main applications get nothing. */
2947 if (dynamic_symbol)
2948 t = sizeof (ElfNN_External_Rela);
2949 else if (shared)
2950 t = 2 * sizeof (ElfNN_External_Rela);
2951
2952 ia64_info->rel_pltoff_sec->size += t;
2953 }
2954
2955 /* Take care of the normal data relocations. */
2956
2957 for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2958 {
2959 int count = rent->count;
2960
2961 switch (rent->type)
2962 {
2963 case R_IA64_FPTR32LSB:
2964 case R_IA64_FPTR64LSB:
2965 /* Allocate one iff !want_fptr and not PIE, which by this point
2966 will be true only if we're actually allocating one statically
2967 in the main executable. Position independent executables
2968 need a relative reloc. */
2969 if (dyn_i->want_fptr && !x->info->pie)
2970 continue;
2971 break;
2972 case R_IA64_PCREL32LSB:
2973 case R_IA64_PCREL64LSB:
2974 if (!dynamic_symbol)
2975 continue;
2976 break;
2977 case R_IA64_DIR32LSB:
2978 case R_IA64_DIR64LSB:
2979 if (!dynamic_symbol && !shared)
2980 continue;
2981 break;
2982 case R_IA64_IPLTLSB:
2983 if (!dynamic_symbol && !shared)
2984 continue;
2985 /* Use two REL relocations for IPLT relocations
2986 against local symbols. */
2987 if (!dynamic_symbol)
2988 count *= 2;
2989 break;
2990 case R_IA64_DTPREL32LSB:
2991 case R_IA64_TPREL64LSB:
2992 case R_IA64_DTPREL64LSB:
2993 case R_IA64_DTPMOD64LSB:
2994 break;
2995 default:
2996 abort ();
2997 }
2998 if (rent->reltext)
2999 ia64_info->reltext = 1;
3000 rent->srel->size += sizeof (ElfNN_External_Rela) * count;
3001 }
3002
3003 return TRUE;
3004 }
3005
3006 static bfd_boolean
3007 elfNN_ia64_adjust_dynamic_symbol (info, h)
3008 struct bfd_link_info *info ATTRIBUTE_UNUSED;
3009 struct elf_link_hash_entry *h;
3010 {
3011 /* ??? Undefined symbols with PLT entries should be re-defined
3012 to be the PLT entry. */
3013
3014 /* If this is a weak symbol, and there is a real definition, the
3015 processor independent code will have arranged for us to see the
3016 real definition first, and we can just use the same value. */
3017 if (h->u.weakdef != NULL)
3018 {
3019 BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
3020 || h->u.weakdef->root.type == bfd_link_hash_defweak);
3021 h->root.u.def.section = h->u.weakdef->root.u.def.section;
3022 h->root.u.def.value = h->u.weakdef->root.u.def.value;
3023 return TRUE;
3024 }
3025
3026 /* If this is a reference to a symbol defined by a dynamic object which
3027 is not a function, we might allocate the symbol in our .dynbss section
3028 and allocate a COPY dynamic relocation.
3029
3030 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
3031 of hackery. */
3032
3033 return TRUE;
3034 }
3035
3036 static bfd_boolean
3037 elfNN_ia64_size_dynamic_sections (output_bfd, info)
3038 bfd *output_bfd ATTRIBUTE_UNUSED;
3039 struct bfd_link_info *info;
3040 {
3041 struct elfNN_ia64_allocate_data data;
3042 struct elfNN_ia64_link_hash_table *ia64_info;
3043 asection *sec;
3044 bfd *dynobj;
3045 bfd_boolean relplt = FALSE;
3046
3047 dynobj = elf_hash_table(info)->dynobj;
3048 ia64_info = elfNN_ia64_hash_table (info);
3049 ia64_info->self_dtpmod_offset = (bfd_vma) -1;
3050 BFD_ASSERT(dynobj != NULL);
3051 data.info = info;
3052
3053 /* Set the contents of the .interp section to the interpreter. */
3054 if (ia64_info->root.dynamic_sections_created
3055 && info->executable)
3056 {
3057 sec = bfd_get_section_by_name (dynobj, ".interp");
3058 BFD_ASSERT (sec != NULL);
3059 sec->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
3060 sec->size = strlen (ELF_DYNAMIC_INTERPRETER) + 1;
3061 }
3062
3063 /* Allocate the GOT entries. */
3064
3065 if (ia64_info->got_sec)
3066 {
3067 data.ofs = 0;
3068 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
3069 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
3070 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
3071 ia64_info->got_sec->size = data.ofs;
3072 }
3073
3074 /* Allocate the FPTR entries. */
3075
3076 if (ia64_info->fptr_sec)
3077 {
3078 data.ofs = 0;
3079 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_fptr, &data);
3080 ia64_info->fptr_sec->size = data.ofs;
3081 }
3082
3083 /* Now that we've seen all of the input files, we can decide which
3084 symbols need plt entries. Allocate the minimal PLT entries first.
3085 We do this even though dynamic_sections_created may be FALSE, because
3086 this has the side-effect of clearing want_plt and want_plt2. */
3087
3088 data.ofs = 0;
3089 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt_entries, &data);
3090
3091 ia64_info->minplt_entries = 0;
3092 if (data.ofs)
3093 {
3094 ia64_info->minplt_entries
3095 = (data.ofs - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
3096 }
3097
3098 /* Align the pointer for the plt2 entries. */
3099 data.ofs = (data.ofs + 31) & (bfd_vma) -32;
3100
3101 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt2_entries, &data);
3102 if (data.ofs != 0 || ia64_info->root.dynamic_sections_created)
3103 {
3104 /* FIXME: we always reserve the memory for dynamic linker even if
3105 there are no PLT entries since dynamic linker may assume the
3106 reserved memory always exists. */
3107
3108 BFD_ASSERT (ia64_info->root.dynamic_sections_created);
3109
3110 ia64_info->plt_sec->size = data.ofs;
3111
3112 /* If we've got a .plt, we need some extra memory for the dynamic
3113 linker. We stuff these in .got.plt. */
3114 sec = bfd_get_section_by_name (dynobj, ".got.plt");
3115 sec->size = 8 * PLT_RESERVED_WORDS;
3116 }
3117
3118 /* Allocate the PLTOFF entries. */
3119
3120 if (ia64_info->pltoff_sec)
3121 {
3122 data.ofs = 0;
3123 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_pltoff_entries, &data);
3124 ia64_info->pltoff_sec->size = data.ofs;
3125 }
3126
3127 if (ia64_info->root.dynamic_sections_created)
3128 {
3129 /* Allocate space for the dynamic relocations that turned out to be
3130 required. */
3131
3132 if (info->shared && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
3133 ia64_info->rel_got_sec->size += sizeof (ElfNN_External_Rela);
3134 data.only_got = FALSE;
3135 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries, &data);
3136 }
3137
3138 /* We have now determined the sizes of the various dynamic sections.
3139 Allocate memory for them. */
3140 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
3141 {
3142 bfd_boolean strip;
3143
3144 if (!(sec->flags & SEC_LINKER_CREATED))
3145 continue;
3146
3147 /* If we don't need this section, strip it from the output file.
3148 There were several sections primarily related to dynamic
3149 linking that must be create before the linker maps input
3150 sections to output sections. The linker does that before
3151 bfd_elf_size_dynamic_sections is called, and it is that
3152 function which decides whether anything needs to go into
3153 these sections. */
3154
3155 strip = (sec->size == 0);
3156
3157 if (sec == ia64_info->got_sec)
3158 strip = FALSE;
3159 else if (sec == ia64_info->rel_got_sec)
3160 {
3161 if (strip)
3162 ia64_info->rel_got_sec = NULL;
3163 else
3164 /* We use the reloc_count field as a counter if we need to
3165 copy relocs into the output file. */
3166 sec->reloc_count = 0;
3167 }
3168 else if (sec == ia64_info->fptr_sec)
3169 {
3170 if (strip)
3171 ia64_info->fptr_sec = NULL;
3172 }
3173 else if (sec == ia64_info->rel_fptr_sec)
3174 {
3175 if (strip)
3176 ia64_info->rel_fptr_sec = NULL;
3177 else
3178 /* We use the reloc_count field as a counter if we need to
3179 copy relocs into the output file. */
3180 sec->reloc_count = 0;
3181 }
3182 else if (sec == ia64_info->plt_sec)
3183 {
3184 if (strip)
3185 ia64_info->plt_sec = NULL;
3186 }
3187 else if (sec == ia64_info->pltoff_sec)
3188 {
3189 if (strip)
3190 ia64_info->pltoff_sec = NULL;
3191 }
3192 else if (sec == ia64_info->rel_pltoff_sec)
3193 {
3194 if (strip)
3195 ia64_info->rel_pltoff_sec = NULL;
3196 else
3197 {
3198 relplt = TRUE;
3199 /* We use the reloc_count field as a counter if we need to
3200 copy relocs into the output file. */
3201 sec->reloc_count = 0;
3202 }
3203 }
3204 else
3205 {
3206 const char *name;
3207
3208 /* It's OK to base decisions on the section name, because none
3209 of the dynobj section names depend upon the input files. */
3210 name = bfd_get_section_name (dynobj, sec);
3211
3212 if (strcmp (name, ".got.plt") == 0)
3213 strip = FALSE;
3214 else if (strncmp (name, ".rel", 4) == 0)
3215 {
3216 if (!strip)
3217 {
3218 /* We use the reloc_count field as a counter if we need to
3219 copy relocs into the output file. */
3220 sec->reloc_count = 0;
3221 }
3222 }
3223 else
3224 continue;
3225 }
3226
3227 if (strip)
3228 sec->flags |= SEC_EXCLUDE;
3229 else
3230 {
3231 /* Allocate memory for the section contents. */
3232 sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->size);
3233 if (sec->contents == NULL && sec->size != 0)
3234 return FALSE;
3235 }
3236 }
3237
3238 if (elf_hash_table (info)->dynamic_sections_created)
3239 {
3240 /* Add some entries to the .dynamic section. We fill in the values
3241 later (in finish_dynamic_sections) but we must add the entries now
3242 so that we get the correct size for the .dynamic section. */
3243
3244 if (info->executable)
3245 {
3246 /* The DT_DEBUG entry is filled in by the dynamic linker and used
3247 by the debugger. */
3248 #define add_dynamic_entry(TAG, VAL) \
3249 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3250
3251 if (!add_dynamic_entry (DT_DEBUG, 0))
3252 return FALSE;
3253 }
3254
3255 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE, 0))
3256 return FALSE;
3257 if (!add_dynamic_entry (DT_PLTGOT, 0))
3258 return FALSE;
3259
3260 if (relplt)
3261 {
3262 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
3263 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3264 || !add_dynamic_entry (DT_JMPREL, 0))
3265 return FALSE;
3266 }
3267
3268 if (!add_dynamic_entry (DT_RELA, 0)
3269 || !add_dynamic_entry (DT_RELASZ, 0)
3270 || !add_dynamic_entry (DT_RELAENT, sizeof (ElfNN_External_Rela)))
3271 return FALSE;
3272
3273 if (ia64_info->reltext)
3274 {
3275 if (!add_dynamic_entry (DT_TEXTREL, 0))
3276 return FALSE;
3277 info->flags |= DF_TEXTREL;
3278 }
3279 }
3280
3281 /* ??? Perhaps force __gp local. */
3282
3283 return TRUE;
3284 }
3285
3286 static bfd_reloc_status_type
3287 elfNN_ia64_install_value (hit_addr, v, r_type)
3288 bfd_byte *hit_addr;
3289 bfd_vma v;
3290 unsigned int r_type;
3291 {
3292 const struct ia64_operand *op;
3293 int bigendian = 0, shift = 0;
3294 bfd_vma t0, t1, dword;
3295 ia64_insn insn;
3296 enum ia64_opnd opnd;
3297 const char *err;
3298 size_t size = 8;
3299 #ifdef BFD_HOST_U_64_BIT
3300 BFD_HOST_U_64_BIT val = (BFD_HOST_U_64_BIT) v;
3301 #else
3302 bfd_vma val = v;
3303 #endif
3304
3305 opnd = IA64_OPND_NIL;
3306 switch (r_type)
3307 {
3308 case R_IA64_NONE:
3309 case R_IA64_LDXMOV:
3310 return bfd_reloc_ok;
3311
3312 /* Instruction relocations. */
3313
3314 case R_IA64_IMM14:
3315 case R_IA64_TPREL14:
3316 case R_IA64_DTPREL14:
3317 opnd = IA64_OPND_IMM14;
3318 break;
3319
3320 case R_IA64_PCREL21F: opnd = IA64_OPND_TGT25; break;
3321 case R_IA64_PCREL21M: opnd = IA64_OPND_TGT25b; break;
3322 case R_IA64_PCREL60B: opnd = IA64_OPND_TGT64; break;
3323 case R_IA64_PCREL21B:
3324 case R_IA64_PCREL21BI:
3325 opnd = IA64_OPND_TGT25c;
3326 break;
3327
3328 case R_IA64_IMM22:
3329 case R_IA64_GPREL22:
3330 case R_IA64_LTOFF22:
3331 case R_IA64_LTOFF22X:
3332 case R_IA64_PLTOFF22:
3333 case R_IA64_PCREL22:
3334 case R_IA64_LTOFF_FPTR22:
3335 case R_IA64_TPREL22:
3336 case R_IA64_DTPREL22:
3337 case R_IA64_LTOFF_TPREL22:
3338 case R_IA64_LTOFF_DTPMOD22:
3339 case R_IA64_LTOFF_DTPREL22:
3340 opnd = IA64_OPND_IMM22;
3341 break;
3342
3343 case R_IA64_IMM64:
3344 case R_IA64_GPREL64I:
3345 case R_IA64_LTOFF64I:
3346 case R_IA64_PLTOFF64I:
3347 case R_IA64_PCREL64I:
3348 case R_IA64_FPTR64I:
3349 case R_IA64_LTOFF_FPTR64I:
3350 case R_IA64_TPREL64I:
3351 case R_IA64_DTPREL64I:
3352 opnd = IA64_OPND_IMMU64;
3353 break;
3354
3355 /* Data relocations. */
3356
3357 case R_IA64_DIR32MSB:
3358 case R_IA64_GPREL32MSB:
3359 case R_IA64_FPTR32MSB:
3360 case R_IA64_PCREL32MSB:
3361 case R_IA64_LTOFF_FPTR32MSB:
3362 case R_IA64_SEGREL32MSB:
3363 case R_IA64_SECREL32MSB:
3364 case R_IA64_LTV32MSB:
3365 case R_IA64_DTPREL32MSB:
3366 size = 4; bigendian = 1;
3367 break;
3368
3369 case R_IA64_DIR32LSB:
3370 case R_IA64_GPREL32LSB:
3371 case R_IA64_FPTR32LSB:
3372 case R_IA64_PCREL32LSB:
3373 case R_IA64_LTOFF_FPTR32LSB:
3374 case R_IA64_SEGREL32LSB:
3375 case R_IA64_SECREL32LSB:
3376 case R_IA64_LTV32LSB:
3377 case R_IA64_DTPREL32LSB:
3378 size = 4; bigendian = 0;
3379 break;
3380
3381 case R_IA64_DIR64MSB:
3382 case R_IA64_GPREL64MSB:
3383 case R_IA64_PLTOFF64MSB:
3384 case R_IA64_FPTR64MSB:
3385 case R_IA64_PCREL64MSB:
3386 case R_IA64_LTOFF_FPTR64MSB:
3387 case R_IA64_SEGREL64MSB:
3388 case R_IA64_SECREL64MSB:
3389 case R_IA64_LTV64MSB:
3390 case R_IA64_TPREL64MSB:
3391 case R_IA64_DTPMOD64MSB:
3392 case R_IA64_DTPREL64MSB:
3393 size = 8; bigendian = 1;
3394 break;
3395
3396 case R_IA64_DIR64LSB:
3397 case R_IA64_GPREL64LSB:
3398 case R_IA64_PLTOFF64LSB:
3399 case R_IA64_FPTR64LSB:
3400 case R_IA64_PCREL64LSB:
3401 case R_IA64_LTOFF_FPTR64LSB:
3402 case R_IA64_SEGREL64LSB:
3403 case R_IA64_SECREL64LSB:
3404 case R_IA64_LTV64LSB:
3405 case R_IA64_TPREL64LSB:
3406 case R_IA64_DTPMOD64LSB:
3407 case R_IA64_DTPREL64LSB:
3408 size = 8; bigendian = 0;
3409 break;
3410
3411 /* Unsupported / Dynamic relocations. */
3412 default:
3413 return bfd_reloc_notsupported;
3414 }
3415
3416 switch (opnd)
3417 {
3418 case IA64_OPND_IMMU64:
3419 hit_addr -= (long) hit_addr & 0x3;
3420 t0 = bfd_getl64 (hit_addr);
3421 t1 = bfd_getl64 (hit_addr + 8);
3422
3423 /* tmpl/s: bits 0.. 5 in t0
3424 slot 0: bits 5..45 in t0
3425 slot 1: bits 46..63 in t0, bits 0..22 in t1
3426 slot 2: bits 23..63 in t1 */
3427
3428 /* First, clear the bits that form the 64 bit constant. */
3429 t0 &= ~(0x3ffffLL << 46);
3430 t1 &= ~(0x7fffffLL
3431 | (( (0x07fLL << 13) | (0x1ffLL << 27)
3432 | (0x01fLL << 22) | (0x001LL << 21)
3433 | (0x001LL << 36)) << 23));
3434
3435 t0 |= ((val >> 22) & 0x03ffffLL) << 46; /* 18 lsbs of imm41 */
3436 t1 |= ((val >> 40) & 0x7fffffLL) << 0; /* 23 msbs of imm41 */
3437 t1 |= ( (((val >> 0) & 0x07f) << 13) /* imm7b */
3438 | (((val >> 7) & 0x1ff) << 27) /* imm9d */
3439 | (((val >> 16) & 0x01f) << 22) /* imm5c */
3440 | (((val >> 21) & 0x001) << 21) /* ic */
3441 | (((val >> 63) & 0x001) << 36)) << 23; /* i */
3442
3443 bfd_putl64 (t0, hit_addr);
3444 bfd_putl64 (t1, hit_addr + 8);
3445 break;
3446
3447 case IA64_OPND_TGT64:
3448 hit_addr -= (long) hit_addr & 0x3;
3449 t0 = bfd_getl64 (hit_addr);
3450 t1 = bfd_getl64 (hit_addr + 8);
3451
3452 /* tmpl/s: bits 0.. 5 in t0
3453 slot 0: bits 5..45 in t0
3454 slot 1: bits 46..63 in t0, bits 0..22 in t1
3455 slot 2: bits 23..63 in t1 */
3456
3457 /* First, clear the bits that form the 64 bit constant. */
3458 t0 &= ~(0x3ffffLL << 46);
3459 t1 &= ~(0x7fffffLL
3460 | ((1LL << 36 | 0xfffffLL << 13) << 23));
3461
3462 val >>= 4;
3463 t0 |= ((val >> 20) & 0xffffLL) << 2 << 46; /* 16 lsbs of imm39 */
3464 t1 |= ((val >> 36) & 0x7fffffLL) << 0; /* 23 msbs of imm39 */
3465 t1 |= ((((val >> 0) & 0xfffffLL) << 13) /* imm20b */
3466 | (((val >> 59) & 0x1LL) << 36)) << 23; /* i */
3467
3468 bfd_putl64 (t0, hit_addr);
3469 bfd_putl64 (t1, hit_addr + 8);
3470 break;
3471
3472 default:
3473 switch ((long) hit_addr & 0x3)
3474 {
3475 case 0: shift = 5; break;
3476 case 1: shift = 14; hit_addr += 3; break;
3477 case 2: shift = 23; hit_addr += 6; break;
3478 case 3: return bfd_reloc_notsupported; /* shouldn't happen... */
3479 }
3480 dword = bfd_getl64 (hit_addr);
3481 insn = (dword >> shift) & 0x1ffffffffffLL;
3482
3483 op = elf64_ia64_operands + opnd;
3484 err = (*op->insert) (op, val, &insn);
3485 if (err)
3486 return bfd_reloc_overflow;
3487
3488 dword &= ~(0x1ffffffffffLL << shift);
3489 dword |= (insn << shift);
3490 bfd_putl64 (dword, hit_addr);
3491 break;
3492
3493 case IA64_OPND_NIL:
3494 /* A data relocation. */
3495 if (bigendian)
3496 if (size == 4)
3497 bfd_putb32 (val, hit_addr);
3498 else
3499 bfd_putb64 (val, hit_addr);
3500 else
3501 if (size == 4)
3502 bfd_putl32 (val, hit_addr);
3503 else
3504 bfd_putl64 (val, hit_addr);
3505 break;
3506 }
3507
3508 return bfd_reloc_ok;
3509 }
3510
3511 static void
3512 elfNN_ia64_install_dyn_reloc (abfd, info, sec, srel, offset, type,
3513 dynindx, addend)
3514 bfd *abfd;
3515 struct bfd_link_info *info;
3516 asection *sec;
3517 asection *srel;
3518 bfd_vma offset;
3519 unsigned int type;
3520 long dynindx;
3521 bfd_vma addend;
3522 {
3523 Elf_Internal_Rela outrel;
3524 bfd_byte *loc;
3525
3526 BFD_ASSERT (dynindx != -1);
3527 outrel.r_info = ELFNN_R_INFO (dynindx, type);
3528 outrel.r_addend = addend;
3529 outrel.r_offset = _bfd_elf_section_offset (abfd, info, sec, offset);
3530 if (outrel.r_offset >= (bfd_vma) -2)
3531 {
3532 /* Run for the hills. We shouldn't be outputting a relocation
3533 for this. So do what everyone else does and output a no-op. */
3534 outrel.r_info = ELFNN_R_INFO (0, R_IA64_NONE);
3535 outrel.r_addend = 0;
3536 outrel.r_offset = 0;
3537 }
3538 else
3539 outrel.r_offset += sec->output_section->vma + sec->output_offset;
3540
3541 loc = srel->contents;
3542 loc += srel->reloc_count++ * sizeof (ElfNN_External_Rela);
3543 bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
3544 BFD_ASSERT (sizeof (ElfNN_External_Rela) * srel->reloc_count <= srel->size);
3545 }
3546
3547 /* Store an entry for target address TARGET_ADDR in the linkage table
3548 and return the gp-relative address of the linkage table entry. */
3549
3550 static bfd_vma
3551 set_got_entry (abfd, info, dyn_i, dynindx, addend, value, dyn_r_type)
3552 bfd *abfd;
3553 struct bfd_link_info *info;
3554 struct elfNN_ia64_dyn_sym_info *dyn_i;
3555 long dynindx;
3556 bfd_vma addend;
3557 bfd_vma value;
3558 unsigned int dyn_r_type;
3559 {
3560 struct elfNN_ia64_link_hash_table *ia64_info;
3561 asection *got_sec;
3562 bfd_boolean done;
3563 bfd_vma got_offset;
3564
3565 ia64_info = elfNN_ia64_hash_table (info);
3566 got_sec = ia64_info->got_sec;
3567
3568 switch (dyn_r_type)
3569 {
3570 case R_IA64_TPREL64LSB:
3571 done = dyn_i->tprel_done;
3572 dyn_i->tprel_done = TRUE;
3573 got_offset = dyn_i->tprel_offset;
3574 break;
3575 case R_IA64_DTPMOD64LSB:
3576 if (dyn_i->dtpmod_offset != ia64_info->self_dtpmod_offset)
3577 {
3578 done = dyn_i->dtpmod_done;
3579 dyn_i->dtpmod_done = TRUE;
3580 }
3581 else
3582 {
3583 done = ia64_info->self_dtpmod_done;
3584 ia64_info->self_dtpmod_done = TRUE;
3585 dynindx = 0;
3586 }
3587 got_offset = dyn_i->dtpmod_offset;
3588 break;
3589 case R_IA64_DTPREL32LSB:
3590 case R_IA64_DTPREL64LSB:
3591 done = dyn_i->dtprel_done;
3592 dyn_i->dtprel_done = TRUE;
3593 got_offset = dyn_i->dtprel_offset;
3594 break;
3595 default:
3596 done = dyn_i->got_done;
3597 dyn_i->got_done = TRUE;
3598 got_offset = dyn_i->got_offset;
3599 break;
3600 }
3601
3602 BFD_ASSERT ((got_offset & 7) == 0);
3603
3604 if (! done)
3605 {
3606 /* Store the target address in the linkage table entry. */
3607 bfd_put_64 (abfd, value, got_sec->contents + got_offset);
3608
3609 /* Install a dynamic relocation if needed. */
3610 if (((info->shared
3611 && (!dyn_i->h
3612 || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
3613 || dyn_i->h->root.type != bfd_link_hash_undefweak)
3614 && dyn_r_type != R_IA64_DTPREL32LSB
3615 && dyn_r_type != R_IA64_DTPREL64LSB)
3616 || elfNN_ia64_dynamic_symbol_p (dyn_i->h, info, dyn_r_type)
3617 || (dynindx != -1
3618 && (dyn_r_type == R_IA64_FPTR32LSB
3619 || dyn_r_type == R_IA64_FPTR64LSB)))
3620 && (!dyn_i->want_ltoff_fptr
3621 || !info->pie
3622 || !dyn_i->h
3623 || dyn_i->h->root.type != bfd_link_hash_undefweak))
3624 {
3625 if (dynindx == -1
3626 && dyn_r_type != R_IA64_TPREL64LSB
3627 && dyn_r_type != R_IA64_DTPMOD64LSB
3628 && dyn_r_type != R_IA64_DTPREL32LSB
3629 && dyn_r_type != R_IA64_DTPREL64LSB)
3630 {
3631 dyn_r_type = R_IA64_RELNNLSB;
3632 dynindx = 0;
3633 addend = value;
3634 }
3635
3636 if (bfd_big_endian (abfd))
3637 {
3638 switch (dyn_r_type)
3639 {
3640 case R_IA64_REL32LSB:
3641 dyn_r_type = R_IA64_REL32MSB;
3642 break;
3643 case R_IA64_DIR32LSB:
3644 dyn_r_type = R_IA64_DIR32MSB;
3645 break;
3646 case R_IA64_FPTR32LSB:
3647 dyn_r_type = R_IA64_FPTR32MSB;
3648 break;
3649 case R_IA64_DTPREL32LSB:
3650 dyn_r_type = R_IA64_DTPREL32MSB;
3651 break;
3652 case R_IA64_REL64LSB:
3653 dyn_r_type = R_IA64_REL64MSB;
3654 break;
3655 case R_IA64_DIR64LSB:
3656 dyn_r_type = R_IA64_DIR64MSB;
3657 break;
3658 case R_IA64_FPTR64LSB:
3659 dyn_r_type = R_IA64_FPTR64MSB;
3660 break;
3661 case R_IA64_TPREL64LSB:
3662 dyn_r_type = R_IA64_TPREL64MSB;
3663 break;
3664 case R_IA64_DTPMOD64LSB:
3665 dyn_r_type = R_IA64_DTPMOD64MSB;
3666 break;
3667 case R_IA64_DTPREL64LSB:
3668 dyn_r_type = R_IA64_DTPREL64MSB;
3669 break;
3670 default:
3671 BFD_ASSERT (FALSE);
3672 break;
3673 }
3674 }
3675
3676 elfNN_ia64_install_dyn_reloc (abfd, NULL, got_sec,
3677 ia64_info->rel_got_sec,
3678 got_offset, dyn_r_type,
3679 dynindx, addend);
3680 }
3681 }
3682
3683 /* Return the address of the linkage table entry. */
3684 value = (got_sec->output_section->vma
3685 + got_sec->output_offset
3686 + got_offset);
3687
3688 return value;
3689 }
3690
3691 /* Fill in a function descriptor consisting of the function's code
3692 address and its global pointer. Return the descriptor's address. */
3693
3694 static bfd_vma
3695 set_fptr_entry (abfd, info, dyn_i, value)
3696 bfd *abfd;
3697 struct bfd_link_info *info;
3698 struct elfNN_ia64_dyn_sym_info *dyn_i;
3699 bfd_vma value;
3700 {
3701 struct elfNN_ia64_link_hash_table *ia64_info;
3702 asection *fptr_sec;
3703
3704 ia64_info = elfNN_ia64_hash_table (info);
3705 fptr_sec = ia64_info->fptr_sec;
3706
3707 if (!dyn_i->fptr_done)
3708 {
3709 dyn_i->fptr_done = 1;
3710
3711 /* Fill in the function descriptor. */
3712 bfd_put_64 (abfd, value, fptr_sec->contents + dyn_i->fptr_offset);
3713 bfd_put_64 (abfd, _bfd_get_gp_value (abfd),
3714 fptr_sec->contents + dyn_i->fptr_offset + 8);
3715 if (ia64_info->rel_fptr_sec)
3716 {
3717 Elf_Internal_Rela outrel;
3718 bfd_byte *loc;
3719
3720 if (bfd_little_endian (abfd))
3721 outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTLSB);
3722 else
3723 outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTMSB);
3724 outrel.r_addend = value;
3725 outrel.r_offset = (fptr_sec->output_section->vma
3726 + fptr_sec->output_offset
3727 + dyn_i->fptr_offset);
3728 loc = ia64_info->rel_fptr_sec->contents;
3729 loc += ia64_info->rel_fptr_sec->reloc_count++
3730 * sizeof (ElfNN_External_Rela);
3731 bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
3732 }
3733 }
3734
3735 /* Return the descriptor's address. */
3736 value = (fptr_sec->output_section->vma
3737 + fptr_sec->output_offset
3738 + dyn_i->fptr_offset);
3739
3740 return value;
3741 }
3742
3743 /* Fill in a PLTOFF entry consisting of the function's code address
3744 and its global pointer. Return the descriptor's address. */
3745
3746 static bfd_vma
3747 set_pltoff_entry (abfd, info, dyn_i, value, is_plt)
3748 bfd *abfd;
3749 struct bfd_link_info *info;
3750 struct elfNN_ia64_dyn_sym_info *dyn_i;
3751 bfd_vma value;
3752 bfd_boolean is_plt;
3753 {
3754 struct elfNN_ia64_link_hash_table *ia64_info;
3755 asection *pltoff_sec;
3756
3757 ia64_info = elfNN_ia64_hash_table (info);
3758 pltoff_sec = ia64_info->pltoff_sec;
3759
3760 /* Don't do anything if this symbol uses a real PLT entry. In
3761 that case, we'll fill this in during finish_dynamic_symbol. */
3762 if ((! dyn_i->want_plt || is_plt)
3763 && !dyn_i->pltoff_done)
3764 {
3765 bfd_vma gp = _bfd_get_gp_value (abfd);
3766
3767 /* Fill in the function descriptor. */
3768 bfd_put_64 (abfd, value, pltoff_sec->contents + dyn_i->pltoff_offset);
3769 bfd_put_64 (abfd, gp, pltoff_sec->contents + dyn_i->pltoff_offset + 8);
3770
3771 /* Install dynamic relocations if needed. */
3772 if (!is_plt
3773 && info->shared
3774 && (!dyn_i->h
3775 || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
3776 || dyn_i->h->root.type != bfd_link_hash_undefweak))
3777 {
3778 unsigned int dyn_r_type;
3779
3780 if (bfd_big_endian (abfd))
3781 dyn_r_type = R_IA64_RELNNMSB;
3782 else
3783 dyn_r_type = R_IA64_RELNNLSB;
3784
3785 elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
3786 ia64_info->rel_pltoff_sec,
3787 dyn_i->pltoff_offset,
3788 dyn_r_type, 0, value);
3789 elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
3790 ia64_info->rel_pltoff_sec,
3791 dyn_i->pltoff_offset + ARCH_SIZE / 8,
3792 dyn_r_type, 0, gp);
3793 }
3794
3795 dyn_i->pltoff_done = 1;
3796 }
3797
3798 /* Return the descriptor's address. */
3799 value = (pltoff_sec->output_section->vma
3800 + pltoff_sec->output_offset
3801 + dyn_i->pltoff_offset);
3802
3803 return value;
3804 }
3805
3806 /* Return the base VMA address which should be subtracted from real addresses
3807 when resolving @tprel() relocation.
3808 Main program TLS (whose template starts at PT_TLS p_vaddr)
3809 is assigned offset round(2 * size of pointer, PT_TLS p_align). */
3810
3811 static bfd_vma
3812 elfNN_ia64_tprel_base (info)
3813 struct bfd_link_info *info;
3814 {
3815 asection *tls_sec = elf_hash_table (info)->tls_sec;
3816
3817 BFD_ASSERT (tls_sec != NULL);
3818 return tls_sec->vma - align_power ((bfd_vma) ARCH_SIZE / 4,
3819 tls_sec->alignment_power);
3820 }
3821
3822 /* Return the base VMA address which should be subtracted from real addresses
3823 when resolving @dtprel() relocation.
3824 This is PT_TLS segment p_vaddr. */
3825
3826 static bfd_vma
3827 elfNN_ia64_dtprel_base (info)
3828 struct bfd_link_info *info;
3829 {
3830 BFD_ASSERT (elf_hash_table (info)->tls_sec != NULL);
3831 return elf_hash_table (info)->tls_sec->vma;
3832 }
3833
3834 /* Called through qsort to sort the .IA_64.unwind section during a
3835 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3836 to the output bfd so we can do proper endianness frobbing. */
3837
3838 static bfd *elfNN_ia64_unwind_entry_compare_bfd;
3839
3840 static int
3841 elfNN_ia64_unwind_entry_compare (a, b)
3842 const PTR a;
3843 const PTR b;
3844 {
3845 bfd_vma av, bv;
3846
3847 av = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, a);
3848 bv = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, b);
3849
3850 return (av < bv ? -1 : av > bv ? 1 : 0);
3851 }
3852
3853 /* Make sure we've got ourselves a nice fat __gp value. */
3854 static bfd_boolean
3855 elfNN_ia64_choose_gp (abfd, info)
3856 bfd *abfd;
3857 struct bfd_link_info *info;
3858 {
3859 bfd_vma min_vma = (bfd_vma) -1, max_vma = 0;
3860 bfd_vma min_short_vma = min_vma, max_short_vma = 0;
3861 struct elf_link_hash_entry *gp;
3862 bfd_vma gp_val;
3863 asection *os;
3864 struct elfNN_ia64_link_hash_table *ia64_info;
3865
3866 ia64_info = elfNN_ia64_hash_table (info);
3867
3868 /* Find the min and max vma of all sections marked short. Also collect
3869 min and max vma of any type, for use in selecting a nice gp. */
3870 for (os = abfd->sections; os ; os = os->next)
3871 {
3872 bfd_vma lo, hi;
3873
3874 if ((os->flags & SEC_ALLOC) == 0)
3875 continue;
3876
3877 lo = os->vma;
3878 hi = os->vma + os->size;
3879 if (hi < lo)
3880 hi = (bfd_vma) -1;
3881
3882 if (min_vma > lo)
3883 min_vma = lo;
3884 if (max_vma < hi)
3885 max_vma = hi;
3886 if (os->flags & SEC_SMALL_DATA)
3887 {
3888 if (min_short_vma > lo)
3889 min_short_vma = lo;
3890 if (max_short_vma < hi)
3891 max_short_vma = hi;
3892 }
3893 }
3894
3895 /* See if the user wants to force a value. */
3896 gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
3897 FALSE, FALSE);
3898
3899 if (gp
3900 && (gp->root.type == bfd_link_hash_defined
3901 || gp->root.type == bfd_link_hash_defweak))
3902 {
3903 asection *gp_sec = gp->root.u.def.section;
3904 gp_val = (gp->root.u.def.value
3905 + gp_sec->output_section->vma
3906 + gp_sec->output_offset);
3907 }
3908 else
3909 {
3910 /* Pick a sensible value. */
3911
3912 asection *got_sec = ia64_info->got_sec;
3913
3914 /* Start with just the address of the .got. */
3915 if (got_sec)
3916 gp_val = got_sec->output_section->vma;
3917 else if (max_short_vma != 0)
3918 gp_val = min_short_vma;
3919 else
3920 gp_val = min_vma;
3921
3922 /* If it is possible to address the entire image, but we
3923 don't with the choice above, adjust. */
3924 if (max_vma - min_vma < 0x400000
3925 && max_vma - gp_val <= 0x200000
3926 && gp_val - min_vma > 0x200000)
3927 gp_val = min_vma + 0x200000;
3928 else if (max_short_vma != 0)
3929 {
3930 /* If we don't cover all the short data, adjust. */
3931 if (max_short_vma - gp_val >= 0x200000)
3932 gp_val = min_short_vma + 0x200000;
3933
3934 /* If we're addressing stuff past the end, adjust back. */
3935 if (gp_val > max_vma)
3936 gp_val = max_vma - 0x200000 + 8;
3937 }
3938 }
3939
3940 /* Validate whether all SHF_IA_64_SHORT sections are within
3941 range of the chosen GP. */
3942
3943 if (max_short_vma != 0)
3944 {
3945 if (max_short_vma - min_short_vma >= 0x400000)
3946 {
3947 (*_bfd_error_handler)
3948 (_("%s: short data segment overflowed (0x%lx >= 0x400000)"),
3949 bfd_get_filename (abfd),
3950 (unsigned long) (max_short_vma - min_short_vma));
3951 return FALSE;
3952 }
3953 else if ((gp_val > min_short_vma
3954 && gp_val - min_short_vma > 0x200000)
3955 || (gp_val < max_short_vma
3956 && max_short_vma - gp_val >= 0x200000))
3957 {
3958 (*_bfd_error_handler)
3959 (_("%s: __gp does not cover short data segment"),
3960 bfd_get_filename (abfd));
3961 return FALSE;
3962 }
3963 }
3964
3965 _bfd_set_gp_value (abfd, gp_val);
3966
3967 return TRUE;
3968 }
3969
3970 static bfd_boolean
3971 elfNN_ia64_final_link (abfd, info)
3972 bfd *abfd;
3973 struct bfd_link_info *info;
3974 {
3975 struct elfNN_ia64_link_hash_table *ia64_info;
3976 asection *unwind_output_sec;
3977
3978 ia64_info = elfNN_ia64_hash_table (info);
3979
3980 /* Make sure we've got ourselves a nice fat __gp value. */
3981 if (!info->relocatable)
3982 {
3983 bfd_vma gp_val = _bfd_get_gp_value (abfd);
3984 struct elf_link_hash_entry *gp;
3985
3986 if (gp_val == 0)
3987 {
3988 if (! elfNN_ia64_choose_gp (abfd, info))
3989 return FALSE;
3990 gp_val = _bfd_get_gp_value (abfd);
3991 }
3992
3993 gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
3994 FALSE, FALSE);
3995 if (gp)
3996 {
3997 gp->root.type = bfd_link_hash_defined;
3998 gp->root.u.def.value = gp_val;
3999 gp->root.u.def.section = bfd_abs_section_ptr;
4000 }
4001 }
4002
4003 /* If we're producing a final executable, we need to sort the contents
4004 of the .IA_64.unwind section. Force this section to be relocated
4005 into memory rather than written immediately to the output file. */
4006 unwind_output_sec = NULL;
4007 if (!info->relocatable)
4008 {
4009 asection *s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind);
4010 if (s)
4011 {
4012 unwind_output_sec = s->output_section;
4013 unwind_output_sec->contents
4014 = bfd_malloc (unwind_output_sec->size);
4015 if (unwind_output_sec->contents == NULL)
4016 return FALSE;
4017 }
4018 }
4019
4020 /* Invoke the regular ELF backend linker to do all the work. */
4021 if (!bfd_elf_final_link (abfd, info))
4022 return FALSE;
4023
4024 if (unwind_output_sec)
4025 {
4026 elfNN_ia64_unwind_entry_compare_bfd = abfd;
4027 qsort (unwind_output_sec->contents,
4028 (size_t) (unwind_output_sec->size / 24),
4029 24,
4030 elfNN_ia64_unwind_entry_compare);
4031
4032 if (! bfd_set_section_contents (abfd, unwind_output_sec,
4033 unwind_output_sec->contents, (bfd_vma) 0,
4034 unwind_output_sec->size))
4035 return FALSE;
4036 }
4037
4038 return TRUE;
4039 }
4040
4041 static bfd_boolean
4042 elfNN_ia64_relocate_section (output_bfd, info, input_bfd, input_section,
4043 contents, relocs, local_syms, local_sections)
4044 bfd *output_bfd;
4045 struct bfd_link_info *info;
4046 bfd *input_bfd;
4047 asection *input_section;
4048 bfd_byte *contents;
4049 Elf_Internal_Rela *relocs;
4050 Elf_Internal_Sym *local_syms;
4051 asection **local_sections;
4052 {
4053 struct elfNN_ia64_link_hash_table *ia64_info;
4054 Elf_Internal_Shdr *symtab_hdr;
4055 Elf_Internal_Rela *rel;
4056 Elf_Internal_Rela *relend;
4057 asection *srel;
4058 bfd_boolean ret_val = TRUE; /* for non-fatal errors */
4059 bfd_vma gp_val;
4060
4061 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
4062 ia64_info = elfNN_ia64_hash_table (info);
4063
4064 /* Infect various flags from the input section to the output section. */
4065 if (info->relocatable)
4066 {
4067 bfd_vma flags;
4068
4069 flags = elf_section_data(input_section)->this_hdr.sh_flags;
4070 flags &= SHF_IA_64_NORECOV;
4071
4072 elf_section_data(input_section->output_section)
4073 ->this_hdr.sh_flags |= flags;
4074 return TRUE;
4075 }
4076
4077 gp_val = _bfd_get_gp_value (output_bfd);
4078 srel = get_reloc_section (input_bfd, ia64_info, input_section, FALSE);
4079
4080 rel = relocs;
4081 relend = relocs + input_section->reloc_count;
4082 for (; rel < relend; ++rel)
4083 {
4084 struct elf_link_hash_entry *h;
4085 struct elfNN_ia64_dyn_sym_info *dyn_i;
4086 bfd_reloc_status_type r;
4087 reloc_howto_type *howto;
4088 unsigned long r_symndx;
4089 Elf_Internal_Sym *sym;
4090 unsigned int r_type;
4091 bfd_vma value;
4092 asection *sym_sec;
4093 bfd_byte *hit_addr;
4094 bfd_boolean dynamic_symbol_p;
4095 bfd_boolean undef_weak_ref;
4096
4097 r_type = ELFNN_R_TYPE (rel->r_info);
4098 if (r_type > R_IA64_MAX_RELOC_CODE)
4099 {
4100 (*_bfd_error_handler)
4101 (_("%B: unknown relocation type %d"),
4102 input_bfd, (int) r_type);
4103 bfd_set_error (bfd_error_bad_value);
4104 ret_val = FALSE;
4105 continue;
4106 }
4107
4108 howto = lookup_howto (r_type);
4109 r_symndx = ELFNN_R_SYM (rel->r_info);
4110 h = NULL;
4111 sym = NULL;
4112 sym_sec = NULL;
4113 undef_weak_ref = FALSE;
4114
4115 if (r_symndx < symtab_hdr->sh_info)
4116 {
4117 /* Reloc against local symbol. */
4118 asection *msec;
4119 sym = local_syms + r_symndx;
4120 sym_sec = local_sections[r_symndx];
4121 msec = sym_sec;
4122 value = _bfd_elf_rela_local_sym (output_bfd, sym, &msec, rel);
4123 if ((sym_sec->flags & SEC_MERGE)
4124 && ELF_ST_TYPE (sym->st_info) == STT_SECTION
4125 && sym_sec->sec_info_type == ELF_INFO_TYPE_MERGE)
4126 {
4127 struct elfNN_ia64_local_hash_entry *loc_h;
4128
4129 loc_h = get_local_sym_hash (ia64_info, input_bfd, rel, FALSE);
4130 if (loc_h && ! loc_h->sec_merge_done)
4131 {
4132 struct elfNN_ia64_dyn_sym_info *dynent;
4133
4134 for (dynent = loc_h->info; dynent; dynent = dynent->next)
4135 {
4136 msec = sym_sec;
4137 dynent->addend =
4138 _bfd_merged_section_offset (output_bfd, &msec,
4139 elf_section_data (msec)->
4140 sec_info,
4141 sym->st_value
4142 + dynent->addend);
4143 dynent->addend -= sym->st_value;
4144 dynent->addend += msec->output_section->vma
4145 + msec->output_offset
4146 - sym_sec->output_section->vma
4147 - sym_sec->output_offset;
4148 }
4149 loc_h->sec_merge_done = 1;
4150 }
4151 }
4152 }
4153 else
4154 {
4155 bfd_boolean unresolved_reloc;
4156 bfd_boolean warned;
4157 struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (input_bfd);
4158
4159 RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
4160 r_symndx, symtab_hdr, sym_hashes,
4161 h, sym_sec, value,
4162 unresolved_reloc, warned);
4163
4164 if (h->root.type == bfd_link_hash_undefweak)
4165 undef_weak_ref = TRUE;
4166 else if (warned)
4167 continue;
4168 }
4169
4170 hit_addr = contents + rel->r_offset;
4171 value += rel->r_addend;
4172 dynamic_symbol_p = elfNN_ia64_dynamic_symbol_p (h, info, r_type);
4173
4174 switch (r_type)
4175 {
4176 case R_IA64_NONE:
4177 case R_IA64_LDXMOV:
4178 continue;
4179
4180 case R_IA64_IMM14:
4181 case R_IA64_IMM22:
4182 case R_IA64_IMM64:
4183 case R_IA64_DIR32MSB:
4184 case R_IA64_DIR32LSB:
4185 case R_IA64_DIR64MSB:
4186 case R_IA64_DIR64LSB:
4187 /* Install a dynamic relocation for this reloc. */
4188 if ((dynamic_symbol_p || info->shared)
4189 && r_symndx != 0
4190 && (input_section->flags & SEC_ALLOC) != 0)
4191 {
4192 unsigned int dyn_r_type;
4193 long dynindx;
4194 bfd_vma addend;
4195
4196 BFD_ASSERT (srel != NULL);
4197
4198 switch (r_type)
4199 {
4200 case R_IA64_IMM14:
4201 case R_IA64_IMM22:
4202 case R_IA64_IMM64:
4203 /* ??? People shouldn't be doing non-pic code in
4204 shared libraries nor dynamic executables. */
4205 (*_bfd_error_handler)
4206 (_("%B: non-pic code with imm relocation against dynamic symbol `%s'"),
4207 input_bfd,
4208 h ? h->root.root.string
4209 : bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4210 sym_sec));
4211 ret_val = FALSE;
4212 continue;
4213
4214 default:
4215 break;
4216 }
4217
4218 /* If we don't need dynamic symbol lookup, find a
4219 matching RELATIVE relocation. */
4220 dyn_r_type = r_type;
4221 if (dynamic_symbol_p)
4222 {
4223 dynindx = h->dynindx;
4224 addend = rel->r_addend;
4225 value = 0;
4226 }
4227 else
4228 {
4229 switch (r_type)
4230 {
4231 case R_IA64_DIR32MSB:
4232 dyn_r_type = R_IA64_REL32MSB;
4233 break;
4234 case R_IA64_DIR32LSB:
4235 dyn_r_type = R_IA64_REL32LSB;
4236 break;
4237 case R_IA64_DIR64MSB:
4238 dyn_r_type = R_IA64_REL64MSB;
4239 break;
4240 case R_IA64_DIR64LSB:
4241 dyn_r_type = R_IA64_REL64LSB;
4242 break;
4243
4244 default:
4245 break;
4246 }
4247 dynindx = 0;
4248 addend = value;
4249 }
4250
4251 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4252 srel, rel->r_offset, dyn_r_type,
4253 dynindx, addend);
4254 }
4255 /* Fall through. */
4256
4257 case R_IA64_LTV32MSB:
4258 case R_IA64_LTV32LSB:
4259 case R_IA64_LTV64MSB:
4260 case R_IA64_LTV64LSB:
4261 r = elfNN_ia64_install_value (hit_addr, value, r_type);
4262 break;
4263
4264 case R_IA64_GPREL22:
4265 case R_IA64_GPREL64I:
4266 case R_IA64_GPREL32MSB:
4267 case R_IA64_GPREL32LSB:
4268 case R_IA64_GPREL64MSB:
4269 case R_IA64_GPREL64LSB:
4270 if (dynamic_symbol_p)
4271 {
4272 (*_bfd_error_handler)
4273 (_("%B: @gprel relocation against dynamic symbol %s"),
4274 input_bfd,
4275 h ? h->root.root.string
4276 : bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4277 sym_sec));
4278 ret_val = FALSE;
4279 continue;
4280 }
4281 value -= gp_val;
4282 r = elfNN_ia64_install_value (hit_addr, value, r_type);
4283 break;
4284
4285 case R_IA64_LTOFF22:
4286 case R_IA64_LTOFF22X:
4287 case R_IA64_LTOFF64I:
4288 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4289 value = set_got_entry (input_bfd, info, dyn_i, (h ? h->dynindx : -1),
4290 rel->r_addend, value, R_IA64_DIRNNLSB);
4291 value -= gp_val;
4292 r = elfNN_ia64_install_value (hit_addr, value, r_type);
4293 break;
4294
4295 case R_IA64_PLTOFF22:
4296 case R_IA64_PLTOFF64I:
4297 case R_IA64_PLTOFF64MSB:
4298 case R_IA64_PLTOFF64LSB:
4299 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4300 value = set_pltoff_entry (output_bfd, info, dyn_i, value, FALSE);
4301 value -= gp_val;
4302 r = elfNN_ia64_install_value (hit_addr, value, r_type);
4303 break;
4304
4305 case R_IA64_FPTR64I:
4306 case R_IA64_FPTR32MSB:
4307 case R_IA64_FPTR32LSB:
4308 case R_IA64_FPTR64MSB:
4309 case R_IA64_FPTR64LSB:
4310 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4311 if (dyn_i->want_fptr)
4312 {
4313 if (!undef_weak_ref)
4314 value = set_fptr_entry (output_bfd, info, dyn_i, value);
4315 }
4316 if (!dyn_i->want_fptr || info->pie)
4317 {
4318 long dynindx;
4319 unsigned int dyn_r_type = r_type;
4320 bfd_vma addend = rel->r_addend;
4321
4322 /* Otherwise, we expect the dynamic linker to create
4323 the entry. */
4324
4325 if (dyn_i->want_fptr)
4326 {
4327 if (r_type == R_IA64_FPTR64I)
4328 {
4329 /* We can't represent this without a dynamic symbol.
4330 Adjust the relocation to be against an output
4331 section symbol, which are always present in the
4332 dynamic symbol table. */
4333 /* ??? People shouldn't be doing non-pic code in
4334 shared libraries. Hork. */
4335 (*_bfd_error_handler)
4336 (_("%B: linking non-pic code in a position independent executable"),
4337 input_bfd);
4338 ret_val = FALSE;
4339 continue;
4340 }
4341 dynindx = 0;
4342 addend = value;
4343 dyn_r_type = r_type + R_IA64_RELNNLSB - R_IA64_FPTRNNLSB;
4344 }
4345 else if (h)
4346 {
4347 if (h->dynindx != -1)
4348 dynindx = h->dynindx;
4349 else
4350 dynindx = (_bfd_elf_link_lookup_local_dynindx
4351 (info, h->root.u.def.section->owner,
4352 global_sym_index (h)));
4353 value = 0;
4354 }
4355 else
4356 {
4357 dynindx = (_bfd_elf_link_lookup_local_dynindx
4358 (info, input_bfd, (long) r_symndx));
4359 value = 0;
4360 }
4361
4362 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4363 srel, rel->r_offset, dyn_r_type,
4364 dynindx, addend);
4365 }
4366
4367 r = elfNN_ia64_install_value (hit_addr, value, r_type);
4368 break;
4369
4370 case R_IA64_LTOFF_FPTR22:
4371 case R_IA64_LTOFF_FPTR64I:
4372 case R_IA64_LTOFF_FPTR32MSB:
4373 case R_IA64_LTOFF_FPTR32LSB:
4374 case R_IA64_LTOFF_FPTR64MSB:
4375 case R_IA64_LTOFF_FPTR64LSB:
4376 {
4377 long dynindx;
4378
4379 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4380 if (dyn_i->want_fptr)
4381 {
4382 BFD_ASSERT (h == NULL || h->dynindx == -1);
4383 if (!undef_weak_ref)
4384 value = set_fptr_entry (output_bfd, info, dyn_i, value);
4385 dynindx = -1;
4386 }
4387 else
4388 {
4389 /* Otherwise, we expect the dynamic linker to create
4390 the entry. */
4391 if (h)
4392 {
4393 if (h->dynindx != -1)
4394 dynindx = h->dynindx;
4395 else
4396 dynindx = (_bfd_elf_link_lookup_local_dynindx
4397 (info, h->root.u.def.section->owner,
4398 global_sym_index (h)));
4399 }
4400 else
4401 dynindx = (_bfd_elf_link_lookup_local_dynindx
4402 (info, input_bfd, (long) r_symndx));
4403 value = 0;
4404 }
4405
4406 value = set_got_entry (output_bfd, info, dyn_i, dynindx,
4407 rel->r_addend, value, R_IA64_FPTRNNLSB);
4408 value -= gp_val;
4409 r = elfNN_ia64_install_value (hit_addr, value, r_type);
4410 }
4411 break;
4412
4413 case R_IA64_PCREL32MSB:
4414 case R_IA64_PCREL32LSB:
4415 case R_IA64_PCREL64MSB:
4416 case R_IA64_PCREL64LSB:
4417 /* Install a dynamic relocation for this reloc. */
4418 if (dynamic_symbol_p && r_symndx != 0)
4419 {
4420 BFD_ASSERT (srel != NULL);
4421
4422 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4423 srel, rel->r_offset, r_type,
4424 h->dynindx, rel->r_addend);
4425 }
4426 goto finish_pcrel;
4427
4428 case R_IA64_PCREL21B:
4429 case R_IA64_PCREL60B:
4430 /* We should have created a PLT entry for any dynamic symbol. */
4431 dyn_i = NULL;
4432 if (h)
4433 dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
4434
4435 if (dyn_i && dyn_i->want_plt2)
4436 {
4437 /* Should have caught this earlier. */
4438 BFD_ASSERT (rel->r_addend == 0);
4439
4440 value = (ia64_info->plt_sec->output_section->vma
4441 + ia64_info->plt_sec->output_offset
4442 + dyn_i->plt2_offset);
4443 }
4444 else
4445 {
4446 /* Since there's no PLT entry, Validate that this is
4447 locally defined. */
4448 BFD_ASSERT (undef_weak_ref || sym_sec->output_section != NULL);
4449
4450 /* If the symbol is undef_weak, we shouldn't be trying
4451 to call it. There's every chance that we'd wind up
4452 with an out-of-range fixup here. Don't bother setting
4453 any value at all. */
4454 if (undef_weak_ref)
4455 continue;
4456 }
4457 goto finish_pcrel;
4458
4459 case R_IA64_PCREL21BI:
4460 case R_IA64_PCREL21F:
4461 case R_IA64_PCREL21M:
4462 case R_IA64_PCREL22:
4463 case R_IA64_PCREL64I:
4464 /* The PCREL21BI reloc is specifically not intended for use with
4465 dynamic relocs. PCREL21F and PCREL21M are used for speculation
4466 fixup code, and thus probably ought not be dynamic. The
4467 PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4468 if (dynamic_symbol_p)
4469 {
4470 const char *msg;
4471
4472 if (r_type == R_IA64_PCREL21BI)
4473 msg = _("%B: @internal branch to dynamic symbol %s");
4474 else if (r_type == R_IA64_PCREL21F || r_type == R_IA64_PCREL21M)
4475 msg = _("%B: speculation fixup to dynamic symbol %s");
4476 else
4477 msg = _("%B: @pcrel relocation against dynamic symbol %s");
4478 (*_bfd_error_handler) (msg, input_bfd,
4479 h ? h->root.root.string
4480 : bfd_elf_sym_name (input_bfd,
4481 symtab_hdr,
4482 sym,
4483 sym_sec));
4484 ret_val = FALSE;
4485 continue;
4486 }
4487 goto finish_pcrel;
4488
4489 finish_pcrel:
4490 /* Make pc-relative. */
4491 value -= (input_section->output_section->vma
4492 + input_section->output_offset
4493 + rel->r_offset) & ~ (bfd_vma) 0x3;
4494 r = elfNN_ia64_install_value (hit_addr, value, r_type);
4495 break;
4496
4497 case R_IA64_SEGREL32MSB:
4498 case R_IA64_SEGREL32LSB:
4499 case R_IA64_SEGREL64MSB:
4500 case R_IA64_SEGREL64LSB:
4501 if (r_symndx == 0)
4502 {
4503 /* If the input section was discarded from the output, then
4504 do nothing. */
4505 r = bfd_reloc_ok;
4506 }
4507 else
4508 {
4509 struct elf_segment_map *m;
4510 Elf_Internal_Phdr *p;
4511
4512 /* Find the segment that contains the output_section. */
4513 for (m = elf_tdata (output_bfd)->segment_map,
4514 p = elf_tdata (output_bfd)->phdr;
4515 m != NULL;
4516 m = m->next, p++)
4517 {
4518 int i;
4519 for (i = m->count - 1; i >= 0; i--)
4520 if (m->sections[i] == input_section->output_section)
4521 break;
4522 if (i >= 0)
4523 break;
4524 }
4525
4526 if (m == NULL)
4527 {
4528 r = bfd_reloc_notsupported;
4529 }
4530 else
4531 {
4532 /* The VMA of the segment is the vaddr of the associated
4533 program header. */
4534 if (value > p->p_vaddr)
4535 value -= p->p_vaddr;
4536 else
4537 value = 0;
4538 r = elfNN_ia64_install_value (hit_addr, value, r_type);
4539 }
4540 break;
4541 }
4542
4543 case R_IA64_SECREL32MSB:
4544 case R_IA64_SECREL32LSB:
4545 case R_IA64_SECREL64MSB:
4546 case R_IA64_SECREL64LSB:
4547 /* Make output-section relative to section where the symbol
4548 is defined. PR 475 */
4549 if (sym_sec)
4550 value -= sym_sec->output_section->vma;
4551 r = elfNN_ia64_install_value (hit_addr, value, r_type);
4552 break;
4553
4554 case R_IA64_IPLTMSB:
4555 case R_IA64_IPLTLSB:
4556 /* Install a dynamic relocation for this reloc. */
4557 if ((dynamic_symbol_p || info->shared)
4558 && (input_section->flags & SEC_ALLOC) != 0)
4559 {
4560 BFD_ASSERT (srel != NULL);
4561
4562 /* If we don't need dynamic symbol lookup, install two
4563 RELATIVE relocations. */
4564 if (!dynamic_symbol_p)
4565 {
4566 unsigned int dyn_r_type;
4567
4568 if (r_type == R_IA64_IPLTMSB)
4569 dyn_r_type = R_IA64_REL64MSB;
4570 else
4571 dyn_r_type = R_IA64_REL64LSB;
4572
4573 elfNN_ia64_install_dyn_reloc (output_bfd, info,
4574 input_section,
4575 srel, rel->r_offset,
4576 dyn_r_type, 0, value);
4577 elfNN_ia64_install_dyn_reloc (output_bfd, info,
4578 input_section,
4579 srel, rel->r_offset + 8,
4580 dyn_r_type, 0, gp_val);
4581 }
4582 else
4583 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4584 srel, rel->r_offset, r_type,
4585 h->dynindx, rel->r_addend);
4586 }
4587
4588 if (r_type == R_IA64_IPLTMSB)
4589 r_type = R_IA64_DIR64MSB;
4590 else
4591 r_type = R_IA64_DIR64LSB;
4592 elfNN_ia64_install_value (hit_addr, value, r_type);
4593 r = elfNN_ia64_install_value (hit_addr + 8, gp_val, r_type);
4594 break;
4595
4596 case R_IA64_TPREL14:
4597 case R_IA64_TPREL22:
4598 case R_IA64_TPREL64I:
4599 value -= elfNN_ia64_tprel_base (info);
4600 r = elfNN_ia64_install_value (hit_addr, value, r_type);
4601 break;
4602
4603 case R_IA64_DTPREL14:
4604 case R_IA64_DTPREL22:
4605 case R_IA64_DTPREL64I:
4606 case R_IA64_DTPREL32LSB:
4607 case R_IA64_DTPREL32MSB:
4608 case R_IA64_DTPREL64LSB:
4609 case R_IA64_DTPREL64MSB:
4610 value -= elfNN_ia64_dtprel_base (info);
4611 r = elfNN_ia64_install_value (hit_addr, value, r_type);
4612 break;
4613
4614 case R_IA64_LTOFF_TPREL22:
4615 case R_IA64_LTOFF_DTPMOD22:
4616 case R_IA64_LTOFF_DTPREL22:
4617 {
4618 int got_r_type;
4619 long dynindx = h ? h->dynindx : -1;
4620 bfd_vma r_addend = rel->r_addend;
4621
4622 switch (r_type)
4623 {
4624 default:
4625 case R_IA64_LTOFF_TPREL22:
4626 if (!dynamic_symbol_p)
4627 {
4628 if (!info->shared)
4629 value -= elfNN_ia64_tprel_base (info);
4630 else
4631 {
4632 r_addend += value - elfNN_ia64_dtprel_base (info);
4633 dynindx = 0;
4634 }
4635 }
4636 got_r_type = R_IA64_TPREL64LSB;
4637 break;
4638 case R_IA64_LTOFF_DTPMOD22:
4639 if (!dynamic_symbol_p && !info->shared)
4640 value = 1;
4641 got_r_type = R_IA64_DTPMOD64LSB;
4642 break;
4643 case R_IA64_LTOFF_DTPREL22:
4644 if (!dynamic_symbol_p)
4645 value -= elfNN_ia64_dtprel_base (info);
4646 got_r_type = R_IA64_DTPRELNNLSB;
4647 break;
4648 }
4649 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4650 value = set_got_entry (input_bfd, info, dyn_i, dynindx, r_addend,
4651 value, got_r_type);
4652 value -= gp_val;
4653 r = elfNN_ia64_install_value (hit_addr, value, r_type);
4654 }
4655 break;
4656
4657 default:
4658 r = bfd_reloc_notsupported;
4659 break;
4660 }
4661
4662 switch (r)
4663 {
4664 case bfd_reloc_ok:
4665 break;
4666
4667 case bfd_reloc_undefined:
4668 /* This can happen for global table relative relocs if
4669 __gp is undefined. This is a panic situation so we
4670 don't try to continue. */
4671 (*info->callbacks->undefined_symbol)
4672 (info, "__gp", input_bfd, input_section, rel->r_offset, 1);
4673 return FALSE;
4674
4675 case bfd_reloc_notsupported:
4676 {
4677 const char *name;
4678
4679 if (h)
4680 name = h->root.root.string;
4681 else
4682 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4683 sym_sec);
4684 if (!(*info->callbacks->warning) (info, _("unsupported reloc"),
4685 name, input_bfd,
4686 input_section, rel->r_offset))
4687 return FALSE;
4688 ret_val = FALSE;
4689 }
4690 break;
4691
4692 case bfd_reloc_dangerous:
4693 case bfd_reloc_outofrange:
4694 case bfd_reloc_overflow:
4695 default:
4696 {
4697 const char *name;
4698
4699 if (h)
4700 name = h->root.root.string;
4701 else
4702 name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym,
4703 sym_sec);
4704
4705 switch (r_type)
4706 {
4707 case R_IA64_PCREL21B:
4708 case R_IA64_PCREL21BI:
4709 case R_IA64_PCREL21M:
4710 case R_IA64_PCREL21F:
4711 if (is_elf_hash_table (info->hash))
4712 {
4713 /* Relaxtion is always performed for ELF output.
4714 Overflow failures for those relocations mean
4715 that the section is too big to relax. */
4716 (*_bfd_error_handler)
4717 (_("%B: Can't relax br (%s) to `%s' at 0x%lx in section `%A' with size 0x%lx (> 0x1000000)."),
4718 input_bfd, input_section, howto->name, name,
4719 rel->r_offset, input_section->size);
4720 break;
4721 }
4722 default:
4723 if (!(*info->callbacks->reloc_overflow) (info,
4724 &h->root,
4725 name,
4726 howto->name,
4727 (bfd_vma) 0,
4728 input_bfd,
4729 input_section,
4730 rel->r_offset))
4731 return FALSE;
4732 break;
4733 }
4734
4735 ret_val = FALSE;
4736 }
4737 break;
4738 }
4739 }
4740
4741 return ret_val;
4742 }
4743
4744 static bfd_boolean
4745 elfNN_ia64_finish_dynamic_symbol (output_bfd, info, h, sym)
4746 bfd *output_bfd;
4747 struct bfd_link_info *info;
4748 struct elf_link_hash_entry *h;
4749 Elf_Internal_Sym *sym;
4750 {
4751 struct elfNN_ia64_link_hash_table *ia64_info;
4752 struct elfNN_ia64_dyn_sym_info *dyn_i;
4753
4754 ia64_info = elfNN_ia64_hash_table (info);
4755 dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
4756
4757 /* Fill in the PLT data, if required. */
4758 if (dyn_i && dyn_i->want_plt)
4759 {
4760 Elf_Internal_Rela outrel;
4761 bfd_byte *loc;
4762 asection *plt_sec;
4763 bfd_vma plt_addr, pltoff_addr, gp_val, index;
4764
4765 gp_val = _bfd_get_gp_value (output_bfd);
4766
4767 /* Initialize the minimal PLT entry. */
4768
4769 index = (dyn_i->plt_offset - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
4770 plt_sec = ia64_info->plt_sec;
4771 loc = plt_sec->contents + dyn_i->plt_offset;
4772
4773 memcpy (loc, plt_min_entry, PLT_MIN_ENTRY_SIZE);
4774 elfNN_ia64_install_value (loc, index, R_IA64_IMM22);
4775 elfNN_ia64_install_value (loc+2, -dyn_i->plt_offset, R_IA64_PCREL21B);
4776
4777 plt_addr = (plt_sec->output_section->vma
4778 + plt_sec->output_offset
4779 + dyn_i->plt_offset);
4780 pltoff_addr = set_pltoff_entry (output_bfd, info, dyn_i, plt_addr, TRUE);
4781
4782 /* Initialize the FULL PLT entry, if needed. */
4783 if (dyn_i->want_plt2)
4784 {
4785 loc = plt_sec->contents + dyn_i->plt2_offset;
4786
4787 memcpy (loc, plt_full_entry, PLT_FULL_ENTRY_SIZE);
4788 elfNN_ia64_install_value (loc, pltoff_addr - gp_val, R_IA64_IMM22);
4789
4790 /* Mark the symbol as undefined, rather than as defined in the
4791 plt section. Leave the value alone. */
4792 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4793 first place. But perhaps elflink.c did some for us. */
4794 if (!h->def_regular)
4795 sym->st_shndx = SHN_UNDEF;
4796 }
4797
4798 /* Create the dynamic relocation. */
4799 outrel.r_offset = pltoff_addr;
4800 if (bfd_little_endian (output_bfd))
4801 outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTLSB);
4802 else
4803 outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTMSB);
4804 outrel.r_addend = 0;
4805
4806 /* This is fun. In the .IA_64.pltoff section, we've got entries
4807 that correspond both to real PLT entries, and those that
4808 happened to resolve to local symbols but need to be created
4809 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4810 relocations for the real PLT should come at the end of the
4811 section, so that they can be indexed by plt entry at runtime.
4812
4813 We emitted all of the relocations for the non-PLT @pltoff
4814 entries during relocate_section. So we can consider the
4815 existing sec->reloc_count to be the base of the array of
4816 PLT relocations. */
4817
4818 loc = ia64_info->rel_pltoff_sec->contents;
4819 loc += ((ia64_info->rel_pltoff_sec->reloc_count + index)
4820 * sizeof (ElfNN_External_Rela));
4821 bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc);
4822 }
4823
4824 /* Mark some specially defined symbols as absolute. */
4825 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
4826 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
4827 || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
4828 sym->st_shndx = SHN_ABS;
4829
4830 return TRUE;
4831 }
4832
4833 static bfd_boolean
4834 elfNN_ia64_finish_dynamic_sections (abfd, info)
4835 bfd *abfd;
4836 struct bfd_link_info *info;
4837 {
4838 struct elfNN_ia64_link_hash_table *ia64_info;
4839 bfd *dynobj;
4840
4841 ia64_info = elfNN_ia64_hash_table (info);
4842 dynobj = ia64_info->root.dynobj;
4843
4844 if (elf_hash_table (info)->dynamic_sections_created)
4845 {
4846 ElfNN_External_Dyn *dyncon, *dynconend;
4847 asection *sdyn, *sgotplt;
4848 bfd_vma gp_val;
4849
4850 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4851 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
4852 BFD_ASSERT (sdyn != NULL);
4853 dyncon = (ElfNN_External_Dyn *) sdyn->contents;
4854 dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->size);
4855
4856 gp_val = _bfd_get_gp_value (abfd);
4857
4858 for (; dyncon < dynconend; dyncon++)
4859 {
4860 Elf_Internal_Dyn dyn;
4861
4862 bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn);
4863
4864 switch (dyn.d_tag)
4865 {
4866 case DT_PLTGOT:
4867 dyn.d_un.d_ptr = gp_val;
4868 break;
4869
4870 case DT_PLTRELSZ:
4871 dyn.d_un.d_val = (ia64_info->minplt_entries
4872 * sizeof (ElfNN_External_Rela));
4873 break;
4874
4875 case DT_JMPREL:
4876 /* See the comment above in finish_dynamic_symbol. */
4877 dyn.d_un.d_ptr = (ia64_info->rel_pltoff_sec->output_section->vma
4878 + ia64_info->rel_pltoff_sec->output_offset
4879 + (ia64_info->rel_pltoff_sec->reloc_count
4880 * sizeof (ElfNN_External_Rela)));
4881 break;
4882
4883 case DT_IA_64_PLT_RESERVE:
4884 dyn.d_un.d_ptr = (sgotplt->output_section->vma
4885 + sgotplt->output_offset);
4886 break;
4887
4888 case DT_RELASZ:
4889 /* Do not have RELASZ include JMPREL. This makes things
4890 easier on ld.so. This is not what the rest of BFD set up. */
4891 dyn.d_un.d_val -= (ia64_info->minplt_entries
4892 * sizeof (ElfNN_External_Rela));
4893 break;
4894 }
4895
4896 bfd_elfNN_swap_dyn_out (abfd, &dyn, dyncon);
4897 }
4898
4899 /* Initialize the PLT0 entry. */
4900 if (ia64_info->plt_sec)
4901 {
4902 bfd_byte *loc = ia64_info->plt_sec->contents;
4903 bfd_vma pltres;
4904
4905 memcpy (loc, plt_header, PLT_HEADER_SIZE);
4906
4907 pltres = (sgotplt->output_section->vma
4908 + sgotplt->output_offset
4909 - gp_val);
4910
4911 elfNN_ia64_install_value (loc+1, pltres, R_IA64_GPREL22);
4912 }
4913 }
4914
4915 return TRUE;
4916 }
4917 \f
4918 /* ELF file flag handling: */
4919
4920 /* Function to keep IA-64 specific file flags. */
4921 static bfd_boolean
4922 elfNN_ia64_set_private_flags (abfd, flags)
4923 bfd *abfd;
4924 flagword flags;
4925 {
4926 BFD_ASSERT (!elf_flags_init (abfd)
4927 || elf_elfheader (abfd)->e_flags == flags);
4928
4929 elf_elfheader (abfd)->e_flags = flags;
4930 elf_flags_init (abfd) = TRUE;
4931 return TRUE;
4932 }
4933
4934 /* Merge backend specific data from an object file to the output
4935 object file when linking. */
4936 static bfd_boolean
4937 elfNN_ia64_merge_private_bfd_data (ibfd, obfd)
4938 bfd *ibfd, *obfd;
4939 {
4940 flagword out_flags;
4941 flagword in_flags;
4942 bfd_boolean ok = TRUE;
4943
4944 /* Don't even pretend to support mixed-format linking. */
4945 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4946 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4947 return FALSE;
4948
4949 in_flags = elf_elfheader (ibfd)->e_flags;
4950 out_flags = elf_elfheader (obfd)->e_flags;
4951
4952 if (! elf_flags_init (obfd))
4953 {
4954 elf_flags_init (obfd) = TRUE;
4955 elf_elfheader (obfd)->e_flags = in_flags;
4956
4957 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
4958 && bfd_get_arch_info (obfd)->the_default)
4959 {
4960 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
4961 bfd_get_mach (ibfd));
4962 }
4963
4964 return TRUE;
4965 }
4966
4967 /* Check flag compatibility. */
4968 if (in_flags == out_flags)
4969 return TRUE;
4970
4971 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4972 if (!(in_flags & EF_IA_64_REDUCEDFP) && (out_flags & EF_IA_64_REDUCEDFP))
4973 elf_elfheader (obfd)->e_flags &= ~EF_IA_64_REDUCEDFP;
4974
4975 if ((in_flags & EF_IA_64_TRAPNIL) != (out_flags & EF_IA_64_TRAPNIL))
4976 {
4977 (*_bfd_error_handler)
4978 (_("%B: linking trap-on-NULL-dereference with non-trapping files"),
4979 ibfd);
4980
4981 bfd_set_error (bfd_error_bad_value);
4982 ok = FALSE;
4983 }
4984 if ((in_flags & EF_IA_64_BE) != (out_flags & EF_IA_64_BE))
4985 {
4986 (*_bfd_error_handler)
4987 (_("%B: linking big-endian files with little-endian files"),
4988 ibfd);
4989
4990 bfd_set_error (bfd_error_bad_value);
4991 ok = FALSE;
4992 }
4993 if ((in_flags & EF_IA_64_ABI64) != (out_flags & EF_IA_64_ABI64))
4994 {
4995 (*_bfd_error_handler)
4996 (_("%B: linking 64-bit files with 32-bit files"),
4997 ibfd);
4998
4999 bfd_set_error (bfd_error_bad_value);
5000 ok = FALSE;
5001 }
5002 if ((in_flags & EF_IA_64_CONS_GP) != (out_flags & EF_IA_64_CONS_GP))
5003 {
5004 (*_bfd_error_handler)
5005 (_("%B: linking constant-gp files with non-constant-gp files"),
5006 ibfd);
5007
5008 bfd_set_error (bfd_error_bad_value);
5009 ok = FALSE;
5010 }
5011 if ((in_flags & EF_IA_64_NOFUNCDESC_CONS_GP)
5012 != (out_flags & EF_IA_64_NOFUNCDESC_CONS_GP))
5013 {
5014 (*_bfd_error_handler)
5015 (_("%B: linking auto-pic files with non-auto-pic files"),
5016 ibfd);
5017
5018 bfd_set_error (bfd_error_bad_value);
5019 ok = FALSE;
5020 }
5021
5022 return ok;
5023 }
5024
5025 static bfd_boolean
5026 elfNN_ia64_print_private_bfd_data (abfd, ptr)
5027 bfd *abfd;
5028 PTR ptr;
5029 {
5030 FILE *file = (FILE *) ptr;
5031 flagword flags = elf_elfheader (abfd)->e_flags;
5032
5033 BFD_ASSERT (abfd != NULL && ptr != NULL);
5034
5035 fprintf (file, "private flags = %s%s%s%s%s%s%s%s\n",
5036 (flags & EF_IA_64_TRAPNIL) ? "TRAPNIL, " : "",
5037 (flags & EF_IA_64_EXT) ? "EXT, " : "",
5038 (flags & EF_IA_64_BE) ? "BE, " : "LE, ",
5039 (flags & EF_IA_64_REDUCEDFP) ? "REDUCEDFP, " : "",
5040 (flags & EF_IA_64_CONS_GP) ? "CONS_GP, " : "",
5041 (flags & EF_IA_64_NOFUNCDESC_CONS_GP) ? "NOFUNCDESC_CONS_GP, " : "",
5042 (flags & EF_IA_64_ABSOLUTE) ? "ABSOLUTE, " : "",
5043 (flags & EF_IA_64_ABI64) ? "ABI64" : "ABI32");
5044
5045 _bfd_elf_print_private_bfd_data (abfd, ptr);
5046 return TRUE;
5047 }
5048
5049 static enum elf_reloc_type_class
5050 elfNN_ia64_reloc_type_class (rela)
5051 const Elf_Internal_Rela *rela;
5052 {
5053 switch ((int) ELFNN_R_TYPE (rela->r_info))
5054 {
5055 case R_IA64_REL32MSB:
5056 case R_IA64_REL32LSB:
5057 case R_IA64_REL64MSB:
5058 case R_IA64_REL64LSB:
5059 return reloc_class_relative;
5060 case R_IA64_IPLTMSB:
5061 case R_IA64_IPLTLSB:
5062 return reloc_class_plt;
5063 case R_IA64_COPY:
5064 return reloc_class_copy;
5065 default:
5066 return reloc_class_normal;
5067 }
5068 }
5069
5070 static const struct bfd_elf_special_section elfNN_ia64_special_sections[] =
5071 {
5072 { ".sbss", 5, -1, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
5073 { ".sdata", 6, -1, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
5074 { NULL, 0, 0, 0, 0 }
5075 };
5076
5077 static bfd_boolean
5078 elfNN_ia64_object_p (bfd *abfd)
5079 {
5080 asection *sec;
5081 asection *group, *unwi, *unw;
5082 flagword flags;
5083 const char *name;
5084 char *unwi_name, *unw_name;
5085 bfd_size_type amt;
5086
5087 if (abfd->flags & DYNAMIC)
5088 return TRUE;
5089
5090 /* Flags for fake group section. */
5091 flags = (SEC_LINKER_CREATED | SEC_GROUP | SEC_LINK_ONCE
5092 | SEC_EXCLUDE);
5093
5094 /* We add a fake section group for each .gnu.linkonce.t.* section,
5095 which isn't in a section group, and its unwind sections. */
5096 for (sec = abfd->sections; sec != NULL; sec = sec->next)
5097 {
5098 if (elf_sec_group (sec) == NULL
5099 && ((sec->flags & (SEC_LINK_ONCE | SEC_CODE | SEC_GROUP))
5100 == (SEC_LINK_ONCE | SEC_CODE))
5101 && strncmp (sec->name, ".gnu.linkonce.t.", 16) == 0)
5102 {
5103 name = sec->name + 16;
5104
5105 amt = strlen (name) + sizeof (".gnu.linkonce.ia64unwi.");
5106 unwi_name = bfd_alloc (abfd, amt);
5107 if (!unwi_name)
5108 return FALSE;
5109
5110 strcpy (stpcpy (unwi_name, ".gnu.linkonce.ia64unwi."), name);
5111 unwi = bfd_get_section_by_name (abfd, unwi_name);
5112
5113 amt = strlen (name) + sizeof (".gnu.linkonce.ia64unw.");
5114 unw_name = bfd_alloc (abfd, amt);
5115 if (!unw_name)
5116 return FALSE;
5117
5118 strcpy (stpcpy (unw_name, ".gnu.linkonce.ia64unw."), name);
5119 unw = bfd_get_section_by_name (abfd, unw_name);
5120
5121 /* We need to create a fake group section for it and its
5122 unwind sections. */
5123 group = bfd_make_section_anyway_with_flags (abfd, name,
5124 flags);
5125 if (group == NULL)
5126 return FALSE;
5127
5128 /* Move the fake group section to the beginning. */
5129 bfd_section_list_remove (abfd, group);
5130 bfd_section_list_prepend (abfd, group);
5131
5132 elf_next_in_group (group) = sec;
5133
5134 elf_group_name (sec) = name;
5135 elf_next_in_group (sec) = sec;
5136 elf_sec_group (sec) = group;
5137
5138 if (unwi)
5139 {
5140 elf_group_name (unwi) = name;
5141 elf_next_in_group (unwi) = sec;
5142 elf_next_in_group (sec) = unwi;
5143 elf_sec_group (unwi) = group;
5144 }
5145
5146 if (unw)
5147 {
5148 elf_group_name (unw) = name;
5149 if (unwi)
5150 {
5151 elf_next_in_group (unw) = elf_next_in_group (unwi);
5152 elf_next_in_group (unwi) = unw;
5153 }
5154 else
5155 {
5156 elf_next_in_group (unw) = sec;
5157 elf_next_in_group (sec) = unw;
5158 }
5159 elf_sec_group (unw) = group;
5160 }
5161
5162 /* Fake SHT_GROUP section header. */
5163 elf_section_data (group)->this_hdr.bfd_section = group;
5164 elf_section_data (group)->this_hdr.sh_type = SHT_GROUP;
5165 }
5166 }
5167 return TRUE;
5168 }
5169
5170 static bfd_boolean
5171 elfNN_ia64_hpux_vec (const bfd_target *vec)
5172 {
5173 extern const bfd_target bfd_elfNN_ia64_hpux_big_vec;
5174 return (vec == & bfd_elfNN_ia64_hpux_big_vec);
5175 }
5176
5177 static void
5178 elfNN_hpux_post_process_headers (abfd, info)
5179 bfd *abfd;
5180 struct bfd_link_info *info ATTRIBUTE_UNUSED;
5181 {
5182 Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd);
5183
5184 i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX;
5185 i_ehdrp->e_ident[EI_ABIVERSION] = 1;
5186 }
5187
5188 bfd_boolean
5189 elfNN_hpux_backend_section_from_bfd_section (abfd, sec, retval)
5190 bfd *abfd ATTRIBUTE_UNUSED;
5191 asection *sec;
5192 int *retval;
5193 {
5194 if (bfd_is_com_section (sec))
5195 {
5196 *retval = SHN_IA_64_ANSI_COMMON;
5197 return TRUE;
5198 }
5199 return FALSE;
5200 }
5201
5202 static void
5203 elfNN_hpux_backend_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED,
5204 asymbol *asym)
5205 {
5206 elf_symbol_type *elfsym = (elf_symbol_type *) asym;
5207
5208 switch (elfsym->internal_elf_sym.st_shndx)
5209 {
5210 case SHN_IA_64_ANSI_COMMON:
5211 asym->section = bfd_com_section_ptr;
5212 asym->value = elfsym->internal_elf_sym.st_size;
5213 asym->flags &= ~BSF_GLOBAL;
5214 break;
5215 }
5216 }
5217
5218 \f
5219 #define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
5220 #define TARGET_LITTLE_NAME "elfNN-ia64-little"
5221 #define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec
5222 #define TARGET_BIG_NAME "elfNN-ia64-big"
5223 #define ELF_ARCH bfd_arch_ia64
5224 #define ELF_MACHINE_CODE EM_IA_64
5225 #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
5226 #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
5227 #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
5228
5229 #define elf_backend_section_from_shdr \
5230 elfNN_ia64_section_from_shdr
5231 #define elf_backend_section_flags \
5232 elfNN_ia64_section_flags
5233 #define elf_backend_fake_sections \
5234 elfNN_ia64_fake_sections
5235 #define elf_backend_final_write_processing \
5236 elfNN_ia64_final_write_processing
5237 #define elf_backend_add_symbol_hook \
5238 elfNN_ia64_add_symbol_hook
5239 #define elf_backend_additional_program_headers \
5240 elfNN_ia64_additional_program_headers
5241 #define elf_backend_modify_segment_map \
5242 elfNN_ia64_modify_segment_map
5243 #define elf_info_to_howto \
5244 elfNN_ia64_info_to_howto
5245
5246 #define bfd_elfNN_bfd_reloc_type_lookup \
5247 elfNN_ia64_reloc_type_lookup
5248 #define bfd_elfNN_bfd_is_local_label_name \
5249 elfNN_ia64_is_local_label_name
5250 #define bfd_elfNN_bfd_relax_section \
5251 elfNN_ia64_relax_section
5252
5253 #define elf_backend_object_p \
5254 elfNN_ia64_object_p
5255
5256 /* Stuff for the BFD linker: */
5257 #define bfd_elfNN_bfd_link_hash_table_create \
5258 elfNN_ia64_hash_table_create
5259 #define bfd_elfNN_bfd_link_hash_table_free \
5260 elfNN_ia64_hash_table_free
5261 #define elf_backend_create_dynamic_sections \
5262 elfNN_ia64_create_dynamic_sections
5263 #define elf_backend_check_relocs \
5264 elfNN_ia64_check_relocs
5265 #define elf_backend_adjust_dynamic_symbol \
5266 elfNN_ia64_adjust_dynamic_symbol
5267 #define elf_backend_size_dynamic_sections \
5268 elfNN_ia64_size_dynamic_sections
5269 #define elf_backend_relocate_section \
5270 elfNN_ia64_relocate_section
5271 #define elf_backend_finish_dynamic_symbol \
5272 elfNN_ia64_finish_dynamic_symbol
5273 #define elf_backend_finish_dynamic_sections \
5274 elfNN_ia64_finish_dynamic_sections
5275 #define bfd_elfNN_bfd_final_link \
5276 elfNN_ia64_final_link
5277
5278 #define bfd_elfNN_bfd_merge_private_bfd_data \
5279 elfNN_ia64_merge_private_bfd_data
5280 #define bfd_elfNN_bfd_set_private_flags \
5281 elfNN_ia64_set_private_flags
5282 #define bfd_elfNN_bfd_print_private_bfd_data \
5283 elfNN_ia64_print_private_bfd_data
5284
5285 #define elf_backend_plt_readonly 1
5286 #define elf_backend_want_plt_sym 0
5287 #define elf_backend_plt_alignment 5
5288 #define elf_backend_got_header_size 0
5289 #define elf_backend_want_got_plt 1
5290 #define elf_backend_may_use_rel_p 1
5291 #define elf_backend_may_use_rela_p 1
5292 #define elf_backend_default_use_rela_p 1
5293 #define elf_backend_want_dynbss 0
5294 #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
5295 #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
5296 #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
5297 #define elf_backend_rela_normal 1
5298 #define elf_backend_special_sections elfNN_ia64_special_sections
5299
5300 /* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with
5301 SHF_LINK_ORDER. But it doesn't set theh sh_link or sh_info fields.
5302 We don't want to flood users with so many error messages. We turn
5303 off the warning for now. It will be turned on later when the Intel
5304 compiler is fixed. */
5305 #define elf_backend_link_order_error_handler NULL
5306
5307 #include "elfNN-target.h"
5308
5309 /* HPUX-specific vectors. */
5310
5311 #undef TARGET_LITTLE_SYM
5312 #undef TARGET_LITTLE_NAME
5313 #undef TARGET_BIG_SYM
5314 #define TARGET_BIG_SYM bfd_elfNN_ia64_hpux_big_vec
5315 #undef TARGET_BIG_NAME
5316 #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
5317
5318 /* These are HP-UX specific functions. */
5319
5320 #undef elf_backend_post_process_headers
5321 #define elf_backend_post_process_headers elfNN_hpux_post_process_headers
5322
5323 #undef elf_backend_section_from_bfd_section
5324 #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
5325
5326 #undef elf_backend_symbol_processing
5327 #define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
5328
5329 #undef elf_backend_want_p_paddr_set_to_zero
5330 #define elf_backend_want_p_paddr_set_to_zero 1
5331
5332 #undef ELF_MAXPAGESIZE
5333 #define ELF_MAXPAGESIZE 0x1000 /* 1K */
5334
5335 #undef elfNN_bed
5336 #define elfNN_bed elfNN_ia64_hpux_bed
5337
5338 #include "elfNN-target.h"
5339
5340 #undef elf_backend_want_p_paddr_set_to_zero
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