* elfxx-ia64.c: Include objalloc.h, hashtab.h.
[deliverable/binutils-gdb.git] / bfd / elfxx-ia64.c
1 /* IA-64 support for 64-bit ELF
2 Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
3 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
20
21 #include "bfd.h"
22 #include "sysdep.h"
23 #include "libbfd.h"
24 #include "elf-bfd.h"
25 #include "opcode/ia64.h"
26 #include "elf/ia64.h"
27 #include "objalloc.h"
28 #include "hashtab.h"
29
30 /* THE RULES for all the stuff the linker creates --
31
32 GOT Entries created in response to LTOFF or LTOFF_FPTR
33 relocations. Dynamic relocs created for dynamic
34 symbols in an application; REL relocs for locals
35 in a shared library.
36
37 FPTR The canonical function descriptor. Created for local
38 symbols in applications. Descriptors for dynamic symbols
39 and local symbols in shared libraries are created by
40 ld.so. Thus there are no dynamic relocs against these
41 objects. The FPTR relocs for such _are_ passed through
42 to the dynamic relocation tables.
43
44 FULL_PLT Created for a PCREL21B relocation against a dynamic symbol.
45 Requires the creation of a PLTOFF entry. This does not
46 require any dynamic relocations.
47
48 PLTOFF Created by PLTOFF relocations. For local symbols, this
49 is an alternate function descriptor, and in shared libraries
50 requires two REL relocations. Note that this cannot be
51 transformed into an FPTR relocation, since it must be in
52 range of the GP. For dynamic symbols, this is a function
53 descriptor for a MIN_PLT entry, and requires one IPLT reloc.
54
55 MIN_PLT Created by PLTOFF entries against dynamic symbols. This
56 does not reqire dynamic relocations. */
57
58 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
59
60 typedef struct bfd_hash_entry *(*new_hash_entry_func)
61 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
62
63 /* In dynamically (linker-) created sections, we generally need to keep track
64 of the place a symbol or expression got allocated to. This is done via hash
65 tables that store entries of the following type. */
66
67 struct elfNN_ia64_dyn_sym_info
68 {
69 /* The addend for which this entry is relevant. */
70 bfd_vma addend;
71
72 /* Next addend in the list. */
73 struct elfNN_ia64_dyn_sym_info *next;
74
75 bfd_vma got_offset;
76 bfd_vma fptr_offset;
77 bfd_vma pltoff_offset;
78 bfd_vma plt_offset;
79 bfd_vma plt2_offset;
80 bfd_vma tprel_offset;
81 bfd_vma dtpmod_offset;
82 bfd_vma dtprel_offset;
83
84 /* The symbol table entry, if any, that this was derrived from. */
85 struct elf_link_hash_entry *h;
86
87 /* Used to count non-got, non-plt relocations for delayed sizing
88 of relocation sections. */
89 struct elfNN_ia64_dyn_reloc_entry
90 {
91 struct elfNN_ia64_dyn_reloc_entry *next;
92 asection *srel;
93 int type;
94 int count;
95 } *reloc_entries;
96
97 /* TRUE when the section contents have been updated. */
98 unsigned got_done : 1;
99 unsigned fptr_done : 1;
100 unsigned pltoff_done : 1;
101 unsigned tprel_done : 1;
102 unsigned dtpmod_done : 1;
103 unsigned dtprel_done : 1;
104
105 /* TRUE for the different kinds of linker data we want created. */
106 unsigned want_got : 1;
107 unsigned want_gotx : 1;
108 unsigned want_fptr : 1;
109 unsigned want_ltoff_fptr : 1;
110 unsigned want_plt : 1;
111 unsigned want_plt2 : 1;
112 unsigned want_pltoff : 1;
113 unsigned want_tprel : 1;
114 unsigned want_dtpmod : 1;
115 unsigned want_dtprel : 1;
116 };
117
118 struct elfNN_ia64_local_hash_entry
119 {
120 int id;
121 unsigned int r_sym;
122 struct elfNN_ia64_dyn_sym_info *info;
123
124 /* TRUE if this hash entry's addends was translated for
125 SHF_MERGE optimization. */
126 unsigned sec_merge_done : 1;
127 };
128
129 struct elfNN_ia64_link_hash_entry
130 {
131 struct elf_link_hash_entry root;
132 struct elfNN_ia64_dyn_sym_info *info;
133 };
134
135 struct elfNN_ia64_link_hash_table
136 {
137 /* The main hash table. */
138 struct elf_link_hash_table root;
139
140 asection *got_sec; /* the linkage table section (or NULL) */
141 asection *rel_got_sec; /* dynamic relocation section for same */
142 asection *fptr_sec; /* function descriptor table (or NULL) */
143 asection *rel_fptr_sec; /* dynamic relocation section for same */
144 asection *plt_sec; /* the primary plt section (or NULL) */
145 asection *pltoff_sec; /* private descriptors for plt (or NULL) */
146 asection *rel_pltoff_sec; /* dynamic relocation section for same */
147
148 bfd_size_type minplt_entries; /* number of minplt entries */
149 unsigned reltext : 1; /* are there relocs against readonly sections? */
150 unsigned self_dtpmod_done : 1;/* has self DTPMOD entry been finished? */
151 bfd_vma self_dtpmod_offset; /* .got offset to self DTPMOD entry */
152
153 htab_t loc_hash_table;
154 void *loc_hash_memory;
155 };
156
157 struct elfNN_ia64_allocate_data
158 {
159 struct bfd_link_info *info;
160 bfd_size_type ofs;
161 };
162
163 #define elfNN_ia64_hash_table(p) \
164 ((struct elfNN_ia64_link_hash_table *) ((p)->hash))
165
166 static bfd_reloc_status_type elfNN_ia64_reloc
167 PARAMS ((bfd *abfd, arelent *reloc, asymbol *sym, PTR data,
168 asection *input_section, bfd *output_bfd, char **error_message));
169 static reloc_howto_type * lookup_howto
170 PARAMS ((unsigned int rtype));
171 static reloc_howto_type *elfNN_ia64_reloc_type_lookup
172 PARAMS ((bfd *abfd, bfd_reloc_code_real_type bfd_code));
173 static void elfNN_ia64_info_to_howto
174 PARAMS ((bfd *abfd, arelent *bfd_reloc, Elf_Internal_Rela *elf_reloc));
175 static bfd_boolean elfNN_ia64_relax_section
176 PARAMS((bfd *abfd, asection *sec, struct bfd_link_info *link_info,
177 bfd_boolean *again));
178 static void elfNN_ia64_relax_ldxmov
179 PARAMS((bfd *abfd, bfd_byte *contents, bfd_vma off));
180 static bfd_boolean is_unwind_section_name
181 PARAMS ((bfd *abfd, const char *));
182 static bfd_boolean elfNN_ia64_section_from_shdr
183 PARAMS ((bfd *, Elf_Internal_Shdr *, const char *));
184 static bfd_boolean elfNN_ia64_section_flags
185 PARAMS ((flagword *, Elf_Internal_Shdr *));
186 static bfd_boolean elfNN_ia64_fake_sections
187 PARAMS ((bfd *abfd, Elf_Internal_Shdr *hdr, asection *sec));
188 static void elfNN_ia64_final_write_processing
189 PARAMS ((bfd *abfd, bfd_boolean linker));
190 static bfd_boolean elfNN_ia64_add_symbol_hook
191 PARAMS ((bfd *abfd, struct bfd_link_info *info, const Elf_Internal_Sym *sym,
192 const char **namep, flagword *flagsp, asection **secp,
193 bfd_vma *valp));
194 static int elfNN_ia64_additional_program_headers
195 PARAMS ((bfd *abfd));
196 static bfd_boolean elfNN_ia64_modify_segment_map
197 PARAMS ((bfd *));
198 static bfd_boolean elfNN_ia64_is_local_label_name
199 PARAMS ((bfd *abfd, const char *name));
200 static bfd_boolean elfNN_ia64_dynamic_symbol_p
201 PARAMS ((struct elf_link_hash_entry *h, struct bfd_link_info *info, int));
202 static struct bfd_hash_entry *elfNN_ia64_new_elf_hash_entry
203 PARAMS ((struct bfd_hash_entry *entry, struct bfd_hash_table *table,
204 const char *string));
205 static void elfNN_ia64_hash_copy_indirect
206 PARAMS ((const struct elf_backend_data *, struct elf_link_hash_entry *,
207 struct elf_link_hash_entry *));
208 static void elfNN_ia64_hash_hide_symbol
209 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, bfd_boolean));
210 static hashval_t elfNN_ia64_local_htab_hash PARAMS ((const void *));
211 static int elfNN_ia64_local_htab_eq PARAMS ((const void *ptr1,
212 const void *ptr2));
213 static struct bfd_link_hash_table *elfNN_ia64_hash_table_create
214 PARAMS ((bfd *abfd));
215 static void elfNN_ia64_hash_table_free
216 PARAMS ((struct bfd_link_hash_table *hash));
217 static bfd_boolean elfNN_ia64_global_dyn_sym_thunk
218 PARAMS ((struct bfd_hash_entry *, PTR));
219 static int elfNN_ia64_local_dyn_sym_thunk
220 PARAMS ((void **, PTR));
221 static void elfNN_ia64_dyn_sym_traverse
222 PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
223 bfd_boolean (*func) (struct elfNN_ia64_dyn_sym_info *, PTR),
224 PTR info));
225 static bfd_boolean elfNN_ia64_create_dynamic_sections
226 PARAMS ((bfd *abfd, struct bfd_link_info *info));
227 static struct elfNN_ia64_local_hash_entry * get_local_sym_hash
228 PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
229 bfd *abfd, const Elf_Internal_Rela *rel, bfd_boolean create));
230 static struct elfNN_ia64_dyn_sym_info * get_dyn_sym_info
231 PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
232 struct elf_link_hash_entry *h,
233 bfd *abfd, const Elf_Internal_Rela *rel, bfd_boolean create));
234 static asection *get_got
235 PARAMS ((bfd *abfd, struct bfd_link_info *info,
236 struct elfNN_ia64_link_hash_table *ia64_info));
237 static asection *get_fptr
238 PARAMS ((bfd *abfd, struct bfd_link_info *info,
239 struct elfNN_ia64_link_hash_table *ia64_info));
240 static asection *get_pltoff
241 PARAMS ((bfd *abfd, struct bfd_link_info *info,
242 struct elfNN_ia64_link_hash_table *ia64_info));
243 static asection *get_reloc_section
244 PARAMS ((bfd *abfd, struct elfNN_ia64_link_hash_table *ia64_info,
245 asection *sec, bfd_boolean create));
246 static bfd_boolean count_dyn_reloc
247 PARAMS ((bfd *abfd, struct elfNN_ia64_dyn_sym_info *dyn_i,
248 asection *srel, int type));
249 static bfd_boolean elfNN_ia64_check_relocs
250 PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *sec,
251 const Elf_Internal_Rela *relocs));
252 static bfd_boolean elfNN_ia64_adjust_dynamic_symbol
253 PARAMS ((struct bfd_link_info *info, struct elf_link_hash_entry *h));
254 static long global_sym_index
255 PARAMS ((struct elf_link_hash_entry *h));
256 static bfd_boolean allocate_fptr
257 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
258 static bfd_boolean allocate_global_data_got
259 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
260 static bfd_boolean allocate_global_fptr_got
261 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
262 static bfd_boolean allocate_local_got
263 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
264 static bfd_boolean allocate_pltoff_entries
265 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
266 static bfd_boolean allocate_plt_entries
267 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
268 static bfd_boolean allocate_plt2_entries
269 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
270 static bfd_boolean allocate_dynrel_entries
271 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
272 static bfd_boolean elfNN_ia64_size_dynamic_sections
273 PARAMS ((bfd *output_bfd, struct bfd_link_info *info));
274 static bfd_reloc_status_type elfNN_ia64_install_value
275 PARAMS ((bfd *abfd, bfd_byte *hit_addr, bfd_vma val, unsigned int r_type));
276 static void elfNN_ia64_install_dyn_reloc
277 PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *sec,
278 asection *srel, bfd_vma offset, unsigned int type,
279 long dynindx, bfd_vma addend));
280 static bfd_vma set_got_entry
281 PARAMS ((bfd *abfd, struct bfd_link_info *info,
282 struct elfNN_ia64_dyn_sym_info *dyn_i, long dynindx,
283 bfd_vma addend, bfd_vma value, unsigned int dyn_r_type));
284 static bfd_vma set_fptr_entry
285 PARAMS ((bfd *abfd, struct bfd_link_info *info,
286 struct elfNN_ia64_dyn_sym_info *dyn_i,
287 bfd_vma value));
288 static bfd_vma set_pltoff_entry
289 PARAMS ((bfd *abfd, struct bfd_link_info *info,
290 struct elfNN_ia64_dyn_sym_info *dyn_i,
291 bfd_vma value, bfd_boolean));
292 static bfd_vma elfNN_ia64_tprel_base
293 PARAMS ((struct bfd_link_info *info));
294 static bfd_vma elfNN_ia64_dtprel_base
295 PARAMS ((struct bfd_link_info *info));
296 static int elfNN_ia64_unwind_entry_compare
297 PARAMS ((const PTR, const PTR));
298 static bfd_boolean elfNN_ia64_choose_gp
299 PARAMS ((bfd *abfd, struct bfd_link_info *info));
300 static bfd_boolean elfNN_ia64_final_link
301 PARAMS ((bfd *abfd, struct bfd_link_info *info));
302 static bfd_boolean elfNN_ia64_relocate_section
303 PARAMS ((bfd *output_bfd, struct bfd_link_info *info, bfd *input_bfd,
304 asection *input_section, bfd_byte *contents,
305 Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms,
306 asection **local_sections));
307 static bfd_boolean elfNN_ia64_finish_dynamic_symbol
308 PARAMS ((bfd *output_bfd, struct bfd_link_info *info,
309 struct elf_link_hash_entry *h, Elf_Internal_Sym *sym));
310 static bfd_boolean elfNN_ia64_finish_dynamic_sections
311 PARAMS ((bfd *abfd, struct bfd_link_info *info));
312 static bfd_boolean elfNN_ia64_set_private_flags
313 PARAMS ((bfd *abfd, flagword flags));
314 static bfd_boolean elfNN_ia64_merge_private_bfd_data
315 PARAMS ((bfd *ibfd, bfd *obfd));
316 static bfd_boolean elfNN_ia64_print_private_bfd_data
317 PARAMS ((bfd *abfd, PTR ptr));
318 static enum elf_reloc_type_class elfNN_ia64_reloc_type_class
319 PARAMS ((const Elf_Internal_Rela *));
320 static bfd_boolean elfNN_ia64_hpux_vec
321 PARAMS ((const bfd_target *vec));
322 static void elfNN_hpux_post_process_headers
323 PARAMS ((bfd *abfd, struct bfd_link_info *info));
324 bfd_boolean elfNN_hpux_backend_section_from_bfd_section
325 PARAMS ((bfd *abfd, asection *sec, int *retval));
326 \f
327 /* ia64-specific relocation. */
328
329 /* Perform a relocation. Not much to do here as all the hard work is
330 done in elfNN_ia64_final_link_relocate. */
331 static bfd_reloc_status_type
332 elfNN_ia64_reloc (abfd, reloc, sym, data, input_section,
333 output_bfd, error_message)
334 bfd *abfd ATTRIBUTE_UNUSED;
335 arelent *reloc;
336 asymbol *sym ATTRIBUTE_UNUSED;
337 PTR data ATTRIBUTE_UNUSED;
338 asection *input_section;
339 bfd *output_bfd;
340 char **error_message;
341 {
342 if (output_bfd)
343 {
344 reloc->address += input_section->output_offset;
345 return bfd_reloc_ok;
346 }
347
348 if (input_section->flags & SEC_DEBUGGING)
349 return bfd_reloc_continue;
350
351 *error_message = "Unsupported call to elfNN_ia64_reloc";
352 return bfd_reloc_notsupported;
353 }
354
355 #define IA64_HOWTO(TYPE, NAME, SIZE, PCREL, IN) \
356 HOWTO (TYPE, 0, SIZE, 0, PCREL, 0, complain_overflow_signed, \
357 elfNN_ia64_reloc, NAME, FALSE, 0, -1, IN)
358
359 /* This table has to be sorted according to increasing number of the
360 TYPE field. */
361 static reloc_howto_type ia64_howto_table[] =
362 {
363 IA64_HOWTO (R_IA64_NONE, "NONE", 0, FALSE, TRUE),
364
365 IA64_HOWTO (R_IA64_IMM14, "IMM14", 0, FALSE, TRUE),
366 IA64_HOWTO (R_IA64_IMM22, "IMM22", 0, FALSE, TRUE),
367 IA64_HOWTO (R_IA64_IMM64, "IMM64", 0, FALSE, TRUE),
368 IA64_HOWTO (R_IA64_DIR32MSB, "DIR32MSB", 2, FALSE, TRUE),
369 IA64_HOWTO (R_IA64_DIR32LSB, "DIR32LSB", 2, FALSE, TRUE),
370 IA64_HOWTO (R_IA64_DIR64MSB, "DIR64MSB", 4, FALSE, TRUE),
371 IA64_HOWTO (R_IA64_DIR64LSB, "DIR64LSB", 4, FALSE, TRUE),
372
373 IA64_HOWTO (R_IA64_GPREL22, "GPREL22", 0, FALSE, TRUE),
374 IA64_HOWTO (R_IA64_GPREL64I, "GPREL64I", 0, FALSE, TRUE),
375 IA64_HOWTO (R_IA64_GPREL32MSB, "GPREL32MSB", 2, FALSE, TRUE),
376 IA64_HOWTO (R_IA64_GPREL32LSB, "GPREL32LSB", 2, FALSE, TRUE),
377 IA64_HOWTO (R_IA64_GPREL64MSB, "GPREL64MSB", 4, FALSE, TRUE),
378 IA64_HOWTO (R_IA64_GPREL64LSB, "GPREL64LSB", 4, FALSE, TRUE),
379
380 IA64_HOWTO (R_IA64_LTOFF22, "LTOFF22", 0, FALSE, TRUE),
381 IA64_HOWTO (R_IA64_LTOFF64I, "LTOFF64I", 0, FALSE, TRUE),
382
383 IA64_HOWTO (R_IA64_PLTOFF22, "PLTOFF22", 0, FALSE, TRUE),
384 IA64_HOWTO (R_IA64_PLTOFF64I, "PLTOFF64I", 0, FALSE, TRUE),
385 IA64_HOWTO (R_IA64_PLTOFF64MSB, "PLTOFF64MSB", 4, FALSE, TRUE),
386 IA64_HOWTO (R_IA64_PLTOFF64LSB, "PLTOFF64LSB", 4, FALSE, TRUE),
387
388 IA64_HOWTO (R_IA64_FPTR64I, "FPTR64I", 0, FALSE, TRUE),
389 IA64_HOWTO (R_IA64_FPTR32MSB, "FPTR32MSB", 2, FALSE, TRUE),
390 IA64_HOWTO (R_IA64_FPTR32LSB, "FPTR32LSB", 2, FALSE, TRUE),
391 IA64_HOWTO (R_IA64_FPTR64MSB, "FPTR64MSB", 4, FALSE, TRUE),
392 IA64_HOWTO (R_IA64_FPTR64LSB, "FPTR64LSB", 4, FALSE, TRUE),
393
394 IA64_HOWTO (R_IA64_PCREL60B, "PCREL60B", 0, TRUE, TRUE),
395 IA64_HOWTO (R_IA64_PCREL21B, "PCREL21B", 0, TRUE, TRUE),
396 IA64_HOWTO (R_IA64_PCREL21M, "PCREL21M", 0, TRUE, TRUE),
397 IA64_HOWTO (R_IA64_PCREL21F, "PCREL21F", 0, TRUE, TRUE),
398 IA64_HOWTO (R_IA64_PCREL32MSB, "PCREL32MSB", 2, TRUE, TRUE),
399 IA64_HOWTO (R_IA64_PCREL32LSB, "PCREL32LSB", 2, TRUE, TRUE),
400 IA64_HOWTO (R_IA64_PCREL64MSB, "PCREL64MSB", 4, TRUE, TRUE),
401 IA64_HOWTO (R_IA64_PCREL64LSB, "PCREL64LSB", 4, TRUE, TRUE),
402
403 IA64_HOWTO (R_IA64_LTOFF_FPTR22, "LTOFF_FPTR22", 0, FALSE, TRUE),
404 IA64_HOWTO (R_IA64_LTOFF_FPTR64I, "LTOFF_FPTR64I", 0, FALSE, TRUE),
405 IA64_HOWTO (R_IA64_LTOFF_FPTR32MSB, "LTOFF_FPTR32MSB", 2, FALSE, TRUE),
406 IA64_HOWTO (R_IA64_LTOFF_FPTR32LSB, "LTOFF_FPTR32LSB", 2, FALSE, TRUE),
407 IA64_HOWTO (R_IA64_LTOFF_FPTR64MSB, "LTOFF_FPTR64MSB", 4, FALSE, TRUE),
408 IA64_HOWTO (R_IA64_LTOFF_FPTR64LSB, "LTOFF_FPTR64LSB", 4, FALSE, TRUE),
409
410 IA64_HOWTO (R_IA64_SEGREL32MSB, "SEGREL32MSB", 2, FALSE, TRUE),
411 IA64_HOWTO (R_IA64_SEGREL32LSB, "SEGREL32LSB", 2, FALSE, TRUE),
412 IA64_HOWTO (R_IA64_SEGREL64MSB, "SEGREL64MSB", 4, FALSE, TRUE),
413 IA64_HOWTO (R_IA64_SEGREL64LSB, "SEGREL64LSB", 4, FALSE, TRUE),
414
415 IA64_HOWTO (R_IA64_SECREL32MSB, "SECREL32MSB", 2, FALSE, TRUE),
416 IA64_HOWTO (R_IA64_SECREL32LSB, "SECREL32LSB", 2, FALSE, TRUE),
417 IA64_HOWTO (R_IA64_SECREL64MSB, "SECREL64MSB", 4, FALSE, TRUE),
418 IA64_HOWTO (R_IA64_SECREL64LSB, "SECREL64LSB", 4, FALSE, TRUE),
419
420 IA64_HOWTO (R_IA64_REL32MSB, "REL32MSB", 2, FALSE, TRUE),
421 IA64_HOWTO (R_IA64_REL32LSB, "REL32LSB", 2, FALSE, TRUE),
422 IA64_HOWTO (R_IA64_REL64MSB, "REL64MSB", 4, FALSE, TRUE),
423 IA64_HOWTO (R_IA64_REL64LSB, "REL64LSB", 4, FALSE, TRUE),
424
425 IA64_HOWTO (R_IA64_LTV32MSB, "LTV32MSB", 2, FALSE, TRUE),
426 IA64_HOWTO (R_IA64_LTV32LSB, "LTV32LSB", 2, FALSE, TRUE),
427 IA64_HOWTO (R_IA64_LTV64MSB, "LTV64MSB", 4, FALSE, TRUE),
428 IA64_HOWTO (R_IA64_LTV64LSB, "LTV64LSB", 4, FALSE, TRUE),
429
430 IA64_HOWTO (R_IA64_PCREL21BI, "PCREL21BI", 0, TRUE, TRUE),
431 IA64_HOWTO (R_IA64_PCREL22, "PCREL22", 0, TRUE, TRUE),
432 IA64_HOWTO (R_IA64_PCREL64I, "PCREL64I", 0, TRUE, TRUE),
433
434 IA64_HOWTO (R_IA64_IPLTMSB, "IPLTMSB", 4, FALSE, TRUE),
435 IA64_HOWTO (R_IA64_IPLTLSB, "IPLTLSB", 4, FALSE, TRUE),
436 IA64_HOWTO (R_IA64_COPY, "COPY", 4, FALSE, TRUE),
437 IA64_HOWTO (R_IA64_LTOFF22X, "LTOFF22X", 0, FALSE, TRUE),
438 IA64_HOWTO (R_IA64_LDXMOV, "LDXMOV", 0, FALSE, TRUE),
439
440 IA64_HOWTO (R_IA64_TPREL14, "TPREL14", 0, FALSE, FALSE),
441 IA64_HOWTO (R_IA64_TPREL22, "TPREL22", 0, FALSE, FALSE),
442 IA64_HOWTO (R_IA64_TPREL64I, "TPREL64I", 0, FALSE, FALSE),
443 IA64_HOWTO (R_IA64_TPREL64MSB, "TPREL64MSB", 4, FALSE, FALSE),
444 IA64_HOWTO (R_IA64_TPREL64LSB, "TPREL64LSB", 4, FALSE, FALSE),
445 IA64_HOWTO (R_IA64_LTOFF_TPREL22, "LTOFF_TPREL22", 0, FALSE, FALSE),
446
447 IA64_HOWTO (R_IA64_DTPMOD64MSB, "TPREL64MSB", 4, FALSE, FALSE),
448 IA64_HOWTO (R_IA64_DTPMOD64LSB, "TPREL64LSB", 4, FALSE, FALSE),
449 IA64_HOWTO (R_IA64_LTOFF_DTPMOD22, "LTOFF_DTPMOD22", 0, FALSE, FALSE),
450
451 IA64_HOWTO (R_IA64_DTPREL14, "DTPREL14", 0, FALSE, FALSE),
452 IA64_HOWTO (R_IA64_DTPREL22, "DTPREL22", 0, FALSE, FALSE),
453 IA64_HOWTO (R_IA64_DTPREL64I, "DTPREL64I", 0, FALSE, FALSE),
454 IA64_HOWTO (R_IA64_DTPREL32MSB, "DTPREL32MSB", 2, FALSE, FALSE),
455 IA64_HOWTO (R_IA64_DTPREL32LSB, "DTPREL32LSB", 2, FALSE, FALSE),
456 IA64_HOWTO (R_IA64_DTPREL64MSB, "DTPREL64MSB", 4, FALSE, FALSE),
457 IA64_HOWTO (R_IA64_DTPREL64LSB, "DTPREL64LSB", 4, FALSE, FALSE),
458 IA64_HOWTO (R_IA64_LTOFF_DTPREL22, "LTOFF_DTPREL22", 0, FALSE, FALSE),
459 };
460
461 static unsigned char elf_code_to_howto_index[R_IA64_MAX_RELOC_CODE + 1];
462
463 /* Given a BFD reloc type, return the matching HOWTO structure. */
464
465 static reloc_howto_type *
466 lookup_howto (rtype)
467 unsigned int rtype;
468 {
469 static int inited = 0;
470 int i;
471
472 if (!inited)
473 {
474 inited = 1;
475
476 memset (elf_code_to_howto_index, 0xff, sizeof (elf_code_to_howto_index));
477 for (i = 0; i < NELEMS (ia64_howto_table); ++i)
478 elf_code_to_howto_index[ia64_howto_table[i].type] = i;
479 }
480
481 BFD_ASSERT (rtype <= R_IA64_MAX_RELOC_CODE);
482 i = elf_code_to_howto_index[rtype];
483 if (i >= NELEMS (ia64_howto_table))
484 return 0;
485 return ia64_howto_table + i;
486 }
487
488 static reloc_howto_type*
489 elfNN_ia64_reloc_type_lookup (abfd, bfd_code)
490 bfd *abfd ATTRIBUTE_UNUSED;
491 bfd_reloc_code_real_type bfd_code;
492 {
493 unsigned int rtype;
494
495 switch (bfd_code)
496 {
497 case BFD_RELOC_NONE: rtype = R_IA64_NONE; break;
498
499 case BFD_RELOC_IA64_IMM14: rtype = R_IA64_IMM14; break;
500 case BFD_RELOC_IA64_IMM22: rtype = R_IA64_IMM22; break;
501 case BFD_RELOC_IA64_IMM64: rtype = R_IA64_IMM64; break;
502
503 case BFD_RELOC_IA64_DIR32MSB: rtype = R_IA64_DIR32MSB; break;
504 case BFD_RELOC_IA64_DIR32LSB: rtype = R_IA64_DIR32LSB; break;
505 case BFD_RELOC_IA64_DIR64MSB: rtype = R_IA64_DIR64MSB; break;
506 case BFD_RELOC_IA64_DIR64LSB: rtype = R_IA64_DIR64LSB; break;
507
508 case BFD_RELOC_IA64_GPREL22: rtype = R_IA64_GPREL22; break;
509 case BFD_RELOC_IA64_GPREL64I: rtype = R_IA64_GPREL64I; break;
510 case BFD_RELOC_IA64_GPREL32MSB: rtype = R_IA64_GPREL32MSB; break;
511 case BFD_RELOC_IA64_GPREL32LSB: rtype = R_IA64_GPREL32LSB; break;
512 case BFD_RELOC_IA64_GPREL64MSB: rtype = R_IA64_GPREL64MSB; break;
513 case BFD_RELOC_IA64_GPREL64LSB: rtype = R_IA64_GPREL64LSB; break;
514
515 case BFD_RELOC_IA64_LTOFF22: rtype = R_IA64_LTOFF22; break;
516 case BFD_RELOC_IA64_LTOFF64I: rtype = R_IA64_LTOFF64I; break;
517
518 case BFD_RELOC_IA64_PLTOFF22: rtype = R_IA64_PLTOFF22; break;
519 case BFD_RELOC_IA64_PLTOFF64I: rtype = R_IA64_PLTOFF64I; break;
520 case BFD_RELOC_IA64_PLTOFF64MSB: rtype = R_IA64_PLTOFF64MSB; break;
521 case BFD_RELOC_IA64_PLTOFF64LSB: rtype = R_IA64_PLTOFF64LSB; break;
522 case BFD_RELOC_IA64_FPTR64I: rtype = R_IA64_FPTR64I; break;
523 case BFD_RELOC_IA64_FPTR32MSB: rtype = R_IA64_FPTR32MSB; break;
524 case BFD_RELOC_IA64_FPTR32LSB: rtype = R_IA64_FPTR32LSB; break;
525 case BFD_RELOC_IA64_FPTR64MSB: rtype = R_IA64_FPTR64MSB; break;
526 case BFD_RELOC_IA64_FPTR64LSB: rtype = R_IA64_FPTR64LSB; break;
527
528 case BFD_RELOC_IA64_PCREL21B: rtype = R_IA64_PCREL21B; break;
529 case BFD_RELOC_IA64_PCREL21BI: rtype = R_IA64_PCREL21BI; break;
530 case BFD_RELOC_IA64_PCREL21M: rtype = R_IA64_PCREL21M; break;
531 case BFD_RELOC_IA64_PCREL21F: rtype = R_IA64_PCREL21F; break;
532 case BFD_RELOC_IA64_PCREL22: rtype = R_IA64_PCREL22; break;
533 case BFD_RELOC_IA64_PCREL60B: rtype = R_IA64_PCREL60B; break;
534 case BFD_RELOC_IA64_PCREL64I: rtype = R_IA64_PCREL64I; break;
535 case BFD_RELOC_IA64_PCREL32MSB: rtype = R_IA64_PCREL32MSB; break;
536 case BFD_RELOC_IA64_PCREL32LSB: rtype = R_IA64_PCREL32LSB; break;
537 case BFD_RELOC_IA64_PCREL64MSB: rtype = R_IA64_PCREL64MSB; break;
538 case BFD_RELOC_IA64_PCREL64LSB: rtype = R_IA64_PCREL64LSB; break;
539
540 case BFD_RELOC_IA64_LTOFF_FPTR22: rtype = R_IA64_LTOFF_FPTR22; break;
541 case BFD_RELOC_IA64_LTOFF_FPTR64I: rtype = R_IA64_LTOFF_FPTR64I; break;
542 case BFD_RELOC_IA64_LTOFF_FPTR32MSB: rtype = R_IA64_LTOFF_FPTR32MSB; break;
543 case BFD_RELOC_IA64_LTOFF_FPTR32LSB: rtype = R_IA64_LTOFF_FPTR32LSB; break;
544 case BFD_RELOC_IA64_LTOFF_FPTR64MSB: rtype = R_IA64_LTOFF_FPTR64MSB; break;
545 case BFD_RELOC_IA64_LTOFF_FPTR64LSB: rtype = R_IA64_LTOFF_FPTR64LSB; break;
546
547 case BFD_RELOC_IA64_SEGREL32MSB: rtype = R_IA64_SEGREL32MSB; break;
548 case BFD_RELOC_IA64_SEGREL32LSB: rtype = R_IA64_SEGREL32LSB; break;
549 case BFD_RELOC_IA64_SEGREL64MSB: rtype = R_IA64_SEGREL64MSB; break;
550 case BFD_RELOC_IA64_SEGREL64LSB: rtype = R_IA64_SEGREL64LSB; break;
551
552 case BFD_RELOC_IA64_SECREL32MSB: rtype = R_IA64_SECREL32MSB; break;
553 case BFD_RELOC_IA64_SECREL32LSB: rtype = R_IA64_SECREL32LSB; break;
554 case BFD_RELOC_IA64_SECREL64MSB: rtype = R_IA64_SECREL64MSB; break;
555 case BFD_RELOC_IA64_SECREL64LSB: rtype = R_IA64_SECREL64LSB; break;
556
557 case BFD_RELOC_IA64_REL32MSB: rtype = R_IA64_REL32MSB; break;
558 case BFD_RELOC_IA64_REL32LSB: rtype = R_IA64_REL32LSB; break;
559 case BFD_RELOC_IA64_REL64MSB: rtype = R_IA64_REL64MSB; break;
560 case BFD_RELOC_IA64_REL64LSB: rtype = R_IA64_REL64LSB; break;
561
562 case BFD_RELOC_IA64_LTV32MSB: rtype = R_IA64_LTV32MSB; break;
563 case BFD_RELOC_IA64_LTV32LSB: rtype = R_IA64_LTV32LSB; break;
564 case BFD_RELOC_IA64_LTV64MSB: rtype = R_IA64_LTV64MSB; break;
565 case BFD_RELOC_IA64_LTV64LSB: rtype = R_IA64_LTV64LSB; break;
566
567 case BFD_RELOC_IA64_IPLTMSB: rtype = R_IA64_IPLTMSB; break;
568 case BFD_RELOC_IA64_IPLTLSB: rtype = R_IA64_IPLTLSB; break;
569 case BFD_RELOC_IA64_COPY: rtype = R_IA64_COPY; break;
570 case BFD_RELOC_IA64_LTOFF22X: rtype = R_IA64_LTOFF22X; break;
571 case BFD_RELOC_IA64_LDXMOV: rtype = R_IA64_LDXMOV; break;
572
573 case BFD_RELOC_IA64_TPREL14: rtype = R_IA64_TPREL14; break;
574 case BFD_RELOC_IA64_TPREL22: rtype = R_IA64_TPREL22; break;
575 case BFD_RELOC_IA64_TPREL64I: rtype = R_IA64_TPREL64I; break;
576 case BFD_RELOC_IA64_TPREL64MSB: rtype = R_IA64_TPREL64MSB; break;
577 case BFD_RELOC_IA64_TPREL64LSB: rtype = R_IA64_TPREL64LSB; break;
578 case BFD_RELOC_IA64_LTOFF_TPREL22: rtype = R_IA64_LTOFF_TPREL22; break;
579
580 case BFD_RELOC_IA64_DTPMOD64MSB: rtype = R_IA64_DTPMOD64MSB; break;
581 case BFD_RELOC_IA64_DTPMOD64LSB: rtype = R_IA64_DTPMOD64LSB; break;
582 case BFD_RELOC_IA64_LTOFF_DTPMOD22: rtype = R_IA64_LTOFF_DTPMOD22; break;
583
584 case BFD_RELOC_IA64_DTPREL14: rtype = R_IA64_DTPREL14; break;
585 case BFD_RELOC_IA64_DTPREL22: rtype = R_IA64_DTPREL22; break;
586 case BFD_RELOC_IA64_DTPREL64I: rtype = R_IA64_DTPREL64I; break;
587 case BFD_RELOC_IA64_DTPREL32MSB: rtype = R_IA64_DTPREL32MSB; break;
588 case BFD_RELOC_IA64_DTPREL32LSB: rtype = R_IA64_DTPREL32LSB; break;
589 case BFD_RELOC_IA64_DTPREL64MSB: rtype = R_IA64_DTPREL64MSB; break;
590 case BFD_RELOC_IA64_DTPREL64LSB: rtype = R_IA64_DTPREL64LSB; break;
591 case BFD_RELOC_IA64_LTOFF_DTPREL22: rtype = R_IA64_LTOFF_DTPREL22; break;
592
593 default: return 0;
594 }
595 return lookup_howto (rtype);
596 }
597
598 /* Given a ELF reloc, return the matching HOWTO structure. */
599
600 static void
601 elfNN_ia64_info_to_howto (abfd, bfd_reloc, elf_reloc)
602 bfd *abfd ATTRIBUTE_UNUSED;
603 arelent *bfd_reloc;
604 Elf_Internal_Rela *elf_reloc;
605 {
606 bfd_reloc->howto
607 = lookup_howto ((unsigned int) ELFNN_R_TYPE (elf_reloc->r_info));
608 }
609 \f
610 #define PLT_HEADER_SIZE (3 * 16)
611 #define PLT_MIN_ENTRY_SIZE (1 * 16)
612 #define PLT_FULL_ENTRY_SIZE (2 * 16)
613 #define PLT_RESERVED_WORDS 3
614
615 static const bfd_byte plt_header[PLT_HEADER_SIZE] =
616 {
617 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
618 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
619 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
620 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
621 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
622 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
623 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
624 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
625 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
626 };
627
628 static const bfd_byte plt_min_entry[PLT_MIN_ENTRY_SIZE] =
629 {
630 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
631 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
632 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
633 };
634
635 static const bfd_byte plt_full_entry[PLT_FULL_ENTRY_SIZE] =
636 {
637 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
638 0x00, 0x41, 0x3c, 0x30, 0x28, 0xc0, /* ld8 r16=[r15],8 */
639 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
640 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
641 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
642 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
643 };
644
645 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
646
647 static const bfd_byte oor_brl[16] =
648 {
649 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
650 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
651 0x00, 0x00, 0x00, 0xc0
652 };
653
654 static const bfd_byte oor_ip[48] =
655 {
656 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
657 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
658 0x01, 0x00, 0x00, 0x60,
659 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
660 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
661 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
662 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
663 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
664 0x60, 0x00, 0x80, 0x00 /* br b6;; */
665 };
666
667 static size_t oor_branch_size = sizeof (oor_brl);
668
669 void
670 bfd_elfNN_ia64_after_parse (int itanium)
671 {
672 oor_branch_size = itanium ? sizeof (oor_ip) : sizeof (oor_brl);
673 }
674
675 \f
676 /* These functions do relaxation for IA-64 ELF. */
677
678 static bfd_boolean
679 elfNN_ia64_relax_section (abfd, sec, link_info, again)
680 bfd *abfd;
681 asection *sec;
682 struct bfd_link_info *link_info;
683 bfd_boolean *again;
684 {
685 struct one_fixup
686 {
687 struct one_fixup *next;
688 asection *tsec;
689 bfd_vma toff;
690 bfd_vma trampoff;
691 };
692
693 Elf_Internal_Shdr *symtab_hdr;
694 Elf_Internal_Rela *internal_relocs;
695 Elf_Internal_Rela *irel, *irelend;
696 bfd_byte *contents;
697 Elf_Internal_Sym *isymbuf = NULL;
698 struct elfNN_ia64_link_hash_table *ia64_info;
699 struct one_fixup *fixups = NULL;
700 bfd_boolean changed_contents = FALSE;
701 bfd_boolean changed_relocs = FALSE;
702 bfd_boolean changed_got = FALSE;
703 bfd_vma gp = 0;
704
705 /* Assume we're not going to change any sizes, and we'll only need
706 one pass. */
707 *again = FALSE;
708
709 /* Don't even try to relax for non-ELF outputs. */
710 if (link_info->hash->creator->flavour != bfd_target_elf_flavour)
711 return FALSE;
712
713 /* Nothing to do if there are no relocations or there is no need for
714 the relax finalize pass. */
715 if ((sec->flags & SEC_RELOC) == 0
716 || sec->reloc_count == 0
717 || (link_info->relax_finalizing
718 && sec->need_finalize_relax == 0))
719 return TRUE;
720
721 /* If this is the first time we have been called for this section,
722 initialize the cooked size. */
723 if (sec->_cooked_size == 0)
724 sec->_cooked_size = sec->_raw_size;
725
726 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
727
728 /* Load the relocations for this section. */
729 internal_relocs = (_bfd_elf_link_read_relocs
730 (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
731 link_info->keep_memory));
732 if (internal_relocs == NULL)
733 return FALSE;
734
735 ia64_info = elfNN_ia64_hash_table (link_info);
736 irelend = internal_relocs + sec->reloc_count;
737
738 /* Get the section contents. */
739 if (elf_section_data (sec)->this_hdr.contents != NULL)
740 contents = elf_section_data (sec)->this_hdr.contents;
741 else
742 {
743 contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
744 if (contents == NULL)
745 goto error_return;
746
747 if (! bfd_get_section_contents (abfd, sec, contents,
748 (file_ptr) 0, sec->_raw_size))
749 goto error_return;
750 }
751
752 for (irel = internal_relocs; irel < irelend; irel++)
753 {
754 unsigned long r_type = ELFNN_R_TYPE (irel->r_info);
755 bfd_vma symaddr, reladdr, trampoff, toff, roff;
756 asection *tsec;
757 struct one_fixup *f;
758 bfd_size_type amt;
759 bfd_boolean is_branch;
760 struct elfNN_ia64_dyn_sym_info *dyn_i;
761
762 switch (r_type)
763 {
764 case R_IA64_PCREL21B:
765 case R_IA64_PCREL21BI:
766 case R_IA64_PCREL21M:
767 case R_IA64_PCREL21F:
768 if (link_info->relax_finalizing)
769 continue;
770 is_branch = TRUE;
771 break;
772
773 case R_IA64_LTOFF22X:
774 case R_IA64_LDXMOV:
775 if (!link_info->relax_finalizing)
776 {
777 sec->need_finalize_relax = 1;
778 continue;
779 }
780 is_branch = FALSE;
781 break;
782
783 default:
784 continue;
785 }
786
787 /* Get the value of the symbol referred to by the reloc. */
788 if (ELFNN_R_SYM (irel->r_info) < symtab_hdr->sh_info)
789 {
790 /* A local symbol. */
791 Elf_Internal_Sym *isym;
792
793 /* Read this BFD's local symbols. */
794 if (isymbuf == NULL)
795 {
796 isymbuf = (Elf_Internal_Sym *) symtab_hdr->contents;
797 if (isymbuf == NULL)
798 isymbuf = bfd_elf_get_elf_syms (abfd, symtab_hdr,
799 symtab_hdr->sh_info, 0,
800 NULL, NULL, NULL);
801 if (isymbuf == 0)
802 goto error_return;
803 }
804
805 isym = isymbuf + ELFNN_R_SYM (irel->r_info);
806 if (isym->st_shndx == SHN_UNDEF)
807 continue; /* We can't do anthing with undefined symbols. */
808 else if (isym->st_shndx == SHN_ABS)
809 tsec = bfd_abs_section_ptr;
810 else if (isym->st_shndx == SHN_COMMON)
811 tsec = bfd_com_section_ptr;
812 else if (isym->st_shndx == SHN_IA_64_ANSI_COMMON)
813 tsec = bfd_com_section_ptr;
814 else
815 tsec = bfd_section_from_elf_index (abfd, isym->st_shndx);
816
817 toff = isym->st_value;
818 dyn_i = get_dyn_sym_info (ia64_info, NULL, abfd, irel, FALSE);
819 }
820 else
821 {
822 unsigned long indx;
823 struct elf_link_hash_entry *h;
824
825 indx = ELFNN_R_SYM (irel->r_info) - symtab_hdr->sh_info;
826 h = elf_sym_hashes (abfd)[indx];
827 BFD_ASSERT (h != NULL);
828
829 while (h->root.type == bfd_link_hash_indirect
830 || h->root.type == bfd_link_hash_warning)
831 h = (struct elf_link_hash_entry *) h->root.u.i.link;
832
833 dyn_i = get_dyn_sym_info (ia64_info, h, abfd, irel, FALSE);
834
835 /* For branches to dynamic symbols, we're interested instead
836 in a branch to the PLT entry. */
837 if (is_branch && dyn_i && dyn_i->want_plt2)
838 {
839 /* Internal branches shouldn't be sent to the PLT.
840 Leave this for now and we'll give an error later. */
841 if (r_type != R_IA64_PCREL21B)
842 continue;
843
844 tsec = ia64_info->plt_sec;
845 toff = dyn_i->plt2_offset;
846 BFD_ASSERT (irel->r_addend == 0);
847 }
848
849 /* Can't do anything else with dynamic symbols. */
850 else if (elfNN_ia64_dynamic_symbol_p (h, link_info, r_type))
851 continue;
852
853 else
854 {
855 /* We can't do anthing with undefined symbols. */
856 if (h->root.type == bfd_link_hash_undefined
857 || h->root.type == bfd_link_hash_undefweak)
858 continue;
859
860 tsec = h->root.u.def.section;
861 toff = h->root.u.def.value;
862 }
863 }
864
865 if (tsec->sec_info_type == ELF_INFO_TYPE_MERGE)
866 toff = _bfd_merged_section_offset (abfd, &tsec,
867 elf_section_data (tsec)->sec_info,
868 toff + irel->r_addend,
869 (bfd_vma) 0);
870 else
871 toff += irel->r_addend;
872
873 symaddr = tsec->output_section->vma + tsec->output_offset + toff;
874
875 roff = irel->r_offset;
876
877 if (is_branch)
878 {
879 reladdr = (sec->output_section->vma
880 + sec->output_offset
881 + roff) & (bfd_vma) -4;
882
883 /* If the branch is in range, no need to do anything. */
884 if ((bfd_signed_vma) (symaddr - reladdr) >= -0x1000000
885 && (bfd_signed_vma) (symaddr - reladdr) <= 0x0FFFFF0)
886 continue;
887
888 /* If the branch and target are in the same section, you've
889 got one honking big section and we can't help you. You'll
890 get an error message later. */
891 if (tsec == sec)
892 continue;
893
894 /* Look for an existing fixup to this address. */
895 for (f = fixups; f ; f = f->next)
896 if (f->tsec == tsec && f->toff == toff)
897 break;
898
899 if (f == NULL)
900 {
901 /* Two alternatives: If it's a branch to a PLT entry, we can
902 make a copy of the FULL_PLT entry. Otherwise, we'll have
903 to use a `brl' insn to get where we're going. */
904
905 size_t size;
906
907 if (tsec == ia64_info->plt_sec)
908 size = sizeof (plt_full_entry);
909 else
910 size = oor_branch_size;
911
912 /* Resize the current section to make room for the new branch. */
913 trampoff = (sec->_cooked_size + 15) & (bfd_vma) -16;
914 amt = trampoff + size;
915 contents = (bfd_byte *) bfd_realloc (contents, amt);
916 if (contents == NULL)
917 goto error_return;
918 sec->_cooked_size = amt;
919
920 if (tsec == ia64_info->plt_sec)
921 {
922 memcpy (contents + trampoff, plt_full_entry, size);
923
924 /* Hijack the old relocation for use as the PLTOFF reloc. */
925 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
926 R_IA64_PLTOFF22);
927 irel->r_offset = trampoff;
928 }
929 else
930 {
931 if (size == sizeof (oor_ip))
932 {
933 memcpy (contents + trampoff, oor_ip, size);
934 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
935 R_IA64_PCREL64I);
936 irel->r_addend -= 16;
937 irel->r_offset = trampoff + 2;
938 }
939 else
940 {
941 memcpy (contents + trampoff, oor_brl, size);
942 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
943 R_IA64_PCREL60B);
944 irel->r_offset = trampoff + 2;
945 }
946
947 }
948
949 /* Record the fixup so we don't do it again this section. */
950 f = (struct one_fixup *)
951 bfd_malloc ((bfd_size_type) sizeof (*f));
952 f->next = fixups;
953 f->tsec = tsec;
954 f->toff = toff;
955 f->trampoff = trampoff;
956 fixups = f;
957 }
958 else
959 {
960 /* Nop out the reloc, since we're finalizing things here. */
961 irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
962 }
963
964 /* Fix up the existing branch to hit the trampoline. Hope like
965 hell this doesn't overflow too. */
966 if (elfNN_ia64_install_value (abfd, contents + roff,
967 f->trampoff - (roff & (bfd_vma) -4),
968 r_type) != bfd_reloc_ok)
969 goto error_return;
970
971 changed_contents = TRUE;
972 changed_relocs = TRUE;
973 }
974 else
975 {
976 /* Fetch the gp. */
977 if (gp == 0)
978 {
979 bfd *obfd = sec->output_section->owner;
980 gp = _bfd_get_gp_value (obfd);
981 if (gp == 0)
982 {
983 if (!elfNN_ia64_choose_gp (obfd, link_info))
984 goto error_return;
985 gp = _bfd_get_gp_value (obfd);
986 }
987 }
988
989 /* If the data is out of range, do nothing. */
990 if ((bfd_signed_vma) (symaddr - gp) >= 0x200000
991 ||(bfd_signed_vma) (symaddr - gp) < -0x200000)
992 continue;
993
994 if (r_type == R_IA64_LTOFF22X)
995 {
996 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
997 R_IA64_GPREL22);
998 changed_relocs = TRUE;
999 if (dyn_i->want_gotx)
1000 {
1001 dyn_i->want_gotx = 0;
1002 changed_got |= !dyn_i->want_got;
1003 }
1004 }
1005 else
1006 {
1007 elfNN_ia64_relax_ldxmov (abfd, contents, roff);
1008 irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
1009 changed_contents = TRUE;
1010 changed_relocs = TRUE;
1011 }
1012 }
1013 }
1014
1015 /* ??? If we created fixups, this may push the code segment large
1016 enough that the data segment moves, which will change the GP.
1017 Reset the GP so that we re-calculate next round. We need to
1018 do this at the _beginning_ of the next round; now will not do. */
1019
1020 /* Clean up and go home. */
1021 while (fixups)
1022 {
1023 struct one_fixup *f = fixups;
1024 fixups = fixups->next;
1025 free (f);
1026 }
1027
1028 if (isymbuf != NULL
1029 && symtab_hdr->contents != (unsigned char *) isymbuf)
1030 {
1031 if (! link_info->keep_memory)
1032 free (isymbuf);
1033 else
1034 {
1035 /* Cache the symbols for elf_link_input_bfd. */
1036 symtab_hdr->contents = (unsigned char *) isymbuf;
1037 }
1038 }
1039
1040 if (contents != NULL
1041 && elf_section_data (sec)->this_hdr.contents != contents)
1042 {
1043 if (!changed_contents && !link_info->keep_memory)
1044 free (contents);
1045 else
1046 {
1047 /* Cache the section contents for elf_link_input_bfd. */
1048 elf_section_data (sec)->this_hdr.contents = contents;
1049 }
1050 }
1051
1052 if (elf_section_data (sec)->relocs != internal_relocs)
1053 {
1054 if (!changed_relocs)
1055 free (internal_relocs);
1056 else
1057 elf_section_data (sec)->relocs = internal_relocs;
1058 }
1059
1060 if (changed_got)
1061 {
1062 struct elfNN_ia64_allocate_data data;
1063 data.info = link_info;
1064 data.ofs = 0;
1065 ia64_info->self_dtpmod_offset = (bfd_vma) -1;
1066
1067 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
1068 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
1069 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
1070 ia64_info->got_sec->_raw_size = data.ofs;
1071 ia64_info->got_sec->_cooked_size = data.ofs;
1072
1073 /* ??? Resize .rela.got too. */
1074 }
1075
1076 if (link_info->relax_finalizing)
1077 sec->need_finalize_relax = 0;
1078
1079 *again = changed_contents || changed_relocs;
1080 return TRUE;
1081
1082 error_return:
1083 if (isymbuf != NULL && (unsigned char *) isymbuf != symtab_hdr->contents)
1084 free (isymbuf);
1085 if (contents != NULL
1086 && elf_section_data (sec)->this_hdr.contents != contents)
1087 free (contents);
1088 if (internal_relocs != NULL
1089 && elf_section_data (sec)->relocs != internal_relocs)
1090 free (internal_relocs);
1091 return FALSE;
1092 }
1093
1094 static void
1095 elfNN_ia64_relax_ldxmov (abfd, contents, off)
1096 bfd *abfd;
1097 bfd_byte *contents;
1098 bfd_vma off;
1099 {
1100 int shift, r1, r3;
1101 bfd_vma dword, insn;
1102
1103 switch ((int)off & 0x3)
1104 {
1105 case 0: shift = 5; break;
1106 case 1: shift = 14; off += 3; break;
1107 case 2: shift = 23; off += 6; break;
1108 default:
1109 abort ();
1110 }
1111
1112 dword = bfd_get_64 (abfd, contents + off);
1113 insn = (dword >> shift) & 0x1ffffffffffLL;
1114
1115 r1 = (insn >> 6) & 127;
1116 r3 = (insn >> 20) & 127;
1117 if (r1 == r3)
1118 insn = 0x8000000; /* nop */
1119 else
1120 insn = (insn & 0x7f01fff) | 0x10800000000LL; /* (qp) mov r1 = r3 */
1121
1122 dword &= ~(0x1ffffffffffLL << shift);
1123 dword |= (insn << shift);
1124 bfd_put_64 (abfd, dword, contents + off);
1125 }
1126 \f
1127 /* Return TRUE if NAME is an unwind table section name. */
1128
1129 static inline bfd_boolean
1130 is_unwind_section_name (abfd, name)
1131 bfd *abfd;
1132 const char *name;
1133 {
1134 size_t len1, len2, len3;
1135
1136 if (elfNN_ia64_hpux_vec (abfd->xvec)
1137 && !strcmp (name, ELF_STRING_ia64_unwind_hdr))
1138 return FALSE;
1139
1140 len1 = sizeof (ELF_STRING_ia64_unwind) - 1;
1141 len2 = sizeof (ELF_STRING_ia64_unwind_info) - 1;
1142 len3 = sizeof (ELF_STRING_ia64_unwind_once) - 1;
1143 return ((strncmp (name, ELF_STRING_ia64_unwind, len1) == 0
1144 && strncmp (name, ELF_STRING_ia64_unwind_info, len2) != 0)
1145 || strncmp (name, ELF_STRING_ia64_unwind_once, len3) == 0);
1146 }
1147
1148 /* Handle an IA-64 specific section when reading an object file. This
1149 is called when elfcode.h finds a section with an unknown type. */
1150
1151 static bfd_boolean
1152 elfNN_ia64_section_from_shdr (abfd, hdr, name)
1153 bfd *abfd;
1154 Elf_Internal_Shdr *hdr;
1155 const char *name;
1156 {
1157 asection *newsect;
1158
1159 /* There ought to be a place to keep ELF backend specific flags, but
1160 at the moment there isn't one. We just keep track of the
1161 sections by their name, instead. Fortunately, the ABI gives
1162 suggested names for all the MIPS specific sections, so we will
1163 probably get away with this. */
1164 switch (hdr->sh_type)
1165 {
1166 case SHT_IA_64_UNWIND:
1167 case SHT_IA_64_HP_OPT_ANOT:
1168 break;
1169
1170 case SHT_IA_64_EXT:
1171 if (strcmp (name, ELF_STRING_ia64_archext) != 0)
1172 return FALSE;
1173 break;
1174
1175 default:
1176 return FALSE;
1177 }
1178
1179 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
1180 return FALSE;
1181 newsect = hdr->bfd_section;
1182
1183 return TRUE;
1184 }
1185
1186 /* Convert IA-64 specific section flags to bfd internal section flags. */
1187
1188 /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
1189 flag. */
1190
1191 static bfd_boolean
1192 elfNN_ia64_section_flags (flags, hdr)
1193 flagword *flags;
1194 Elf_Internal_Shdr *hdr;
1195 {
1196 if (hdr->sh_flags & SHF_IA_64_SHORT)
1197 *flags |= SEC_SMALL_DATA;
1198
1199 return TRUE;
1200 }
1201
1202 /* Set the correct type for an IA-64 ELF section. We do this by the
1203 section name, which is a hack, but ought to work. */
1204
1205 static bfd_boolean
1206 elfNN_ia64_fake_sections (abfd, hdr, sec)
1207 bfd *abfd ATTRIBUTE_UNUSED;
1208 Elf_Internal_Shdr *hdr;
1209 asection *sec;
1210 {
1211 register const char *name;
1212
1213 name = bfd_get_section_name (abfd, sec);
1214
1215 if (is_unwind_section_name (abfd, name))
1216 {
1217 /* We don't have the sections numbered at this point, so sh_info
1218 is set later, in elfNN_ia64_final_write_processing. */
1219 hdr->sh_type = SHT_IA_64_UNWIND;
1220 hdr->sh_flags |= SHF_LINK_ORDER;
1221 }
1222 else if (strcmp (name, ELF_STRING_ia64_archext) == 0)
1223 hdr->sh_type = SHT_IA_64_EXT;
1224 else if (strcmp (name, ".HP.opt_annot") == 0)
1225 hdr->sh_type = SHT_IA_64_HP_OPT_ANOT;
1226 else if (strcmp (name, ".reloc") == 0)
1227 /* This is an ugly, but unfortunately necessary hack that is
1228 needed when producing EFI binaries on IA-64. It tells
1229 elf.c:elf_fake_sections() not to consider ".reloc" as a section
1230 containing ELF relocation info. We need this hack in order to
1231 be able to generate ELF binaries that can be translated into
1232 EFI applications (which are essentially COFF objects). Those
1233 files contain a COFF ".reloc" section inside an ELFNN object,
1234 which would normally cause BFD to segfault because it would
1235 attempt to interpret this section as containing relocation
1236 entries for section "oc". With this hack enabled, ".reloc"
1237 will be treated as a normal data section, which will avoid the
1238 segfault. However, you won't be able to create an ELFNN binary
1239 with a section named "oc" that needs relocations, but that's
1240 the kind of ugly side-effects you get when detecting section
1241 types based on their names... In practice, this limitation is
1242 unlikely to bite. */
1243 hdr->sh_type = SHT_PROGBITS;
1244
1245 if (sec->flags & SEC_SMALL_DATA)
1246 hdr->sh_flags |= SHF_IA_64_SHORT;
1247
1248 return TRUE;
1249 }
1250
1251 /* The final processing done just before writing out an IA-64 ELF
1252 object file. */
1253
1254 static void
1255 elfNN_ia64_final_write_processing (abfd, linker)
1256 bfd *abfd;
1257 bfd_boolean linker ATTRIBUTE_UNUSED;
1258 {
1259 Elf_Internal_Shdr *hdr;
1260 const char *sname;
1261 asection *text_sect, *s;
1262 size_t len;
1263
1264 for (s = abfd->sections; s; s = s->next)
1265 {
1266 hdr = &elf_section_data (s)->this_hdr;
1267 switch (hdr->sh_type)
1268 {
1269 case SHT_IA_64_UNWIND:
1270 /* See comments in gas/config/tc-ia64.c:dot_endp on why we
1271 have to do this. */
1272 sname = bfd_get_section_name (abfd, s);
1273 len = sizeof (ELF_STRING_ia64_unwind) - 1;
1274 if (sname && strncmp (sname, ELF_STRING_ia64_unwind, len) == 0)
1275 {
1276 sname += len;
1277
1278 if (sname[0] == '\0')
1279 /* .IA_64.unwind -> .text */
1280 text_sect = bfd_get_section_by_name (abfd, ".text");
1281 else
1282 /* .IA_64.unwindFOO -> FOO */
1283 text_sect = bfd_get_section_by_name (abfd, sname);
1284 }
1285 else if (sname
1286 && (len = sizeof (ELF_STRING_ia64_unwind_once) - 1,
1287 strncmp (sname, ELF_STRING_ia64_unwind_once, len)) == 0)
1288 {
1289 /* .gnu.linkonce.ia64unw.FOO -> .gnu.linkonce.t.FOO */
1290 size_t len2 = sizeof (".gnu.linkonce.t.") - 1;
1291 char *once_name = bfd_malloc (len2 + strlen (sname + len) + 1);
1292
1293 if (once_name != NULL)
1294 {
1295 memcpy (once_name, ".gnu.linkonce.t.", len2);
1296 strcpy (once_name + len2, sname + len);
1297 text_sect = bfd_get_section_by_name (abfd, once_name);
1298 free (once_name);
1299 }
1300 else
1301 /* Should only happen if we run out of memory, in
1302 which case we're probably toast anyway. Try to
1303 cope by finding the section the slow way. */
1304 for (text_sect = abfd->sections;
1305 text_sect != NULL;
1306 text_sect = text_sect->next)
1307 {
1308 if (strncmp (bfd_section_name (abfd, text_sect),
1309 ".gnu.linkonce.t.", len2) == 0
1310 && strcmp (bfd_section_name (abfd, text_sect) + len2,
1311 sname + len) == 0)
1312 break;
1313 }
1314 }
1315 else
1316 /* last resort: fall back on .text */
1317 text_sect = bfd_get_section_by_name (abfd, ".text");
1318
1319 if (text_sect)
1320 {
1321 /* The IA-64 processor-specific ABI requires setting
1322 sh_link to the unwind section, whereas HP-UX requires
1323 sh_info to do so. For maximum compatibility, we'll
1324 set both for now... */
1325 hdr->sh_link = elf_section_data (text_sect)->this_idx;
1326 hdr->sh_info = elf_section_data (text_sect)->this_idx;
1327 }
1328 break;
1329 }
1330 }
1331
1332 if (! elf_flags_init (abfd))
1333 {
1334 unsigned long flags = 0;
1335
1336 if (abfd->xvec->byteorder == BFD_ENDIAN_BIG)
1337 flags |= EF_IA_64_BE;
1338 if (bfd_get_mach (abfd) == bfd_mach_ia64_elf64)
1339 flags |= EF_IA_64_ABI64;
1340
1341 elf_elfheader(abfd)->e_flags = flags;
1342 elf_flags_init (abfd) = TRUE;
1343 }
1344 }
1345
1346 /* Hook called by the linker routine which adds symbols from an object
1347 file. We use it to put .comm items in .sbss, and not .bss. */
1348
1349 static bfd_boolean
1350 elfNN_ia64_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
1351 bfd *abfd;
1352 struct bfd_link_info *info;
1353 const Elf_Internal_Sym *sym;
1354 const char **namep ATTRIBUTE_UNUSED;
1355 flagword *flagsp ATTRIBUTE_UNUSED;
1356 asection **secp;
1357 bfd_vma *valp;
1358 {
1359 if (sym->st_shndx == SHN_COMMON
1360 && !info->relocatable
1361 && sym->st_size <= elf_gp_size (abfd))
1362 {
1363 /* Common symbols less than or equal to -G nn bytes are
1364 automatically put into .sbss. */
1365
1366 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
1367
1368 if (scomm == NULL)
1369 {
1370 scomm = bfd_make_section (abfd, ".scommon");
1371 if (scomm == NULL
1372 || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC
1373 | SEC_IS_COMMON
1374 | SEC_LINKER_CREATED)))
1375 return FALSE;
1376 }
1377
1378 *secp = scomm;
1379 *valp = sym->st_size;
1380 }
1381
1382 return TRUE;
1383 }
1384
1385 /* Return the number of additional phdrs we will need. */
1386
1387 static int
1388 elfNN_ia64_additional_program_headers (abfd)
1389 bfd *abfd;
1390 {
1391 asection *s;
1392 int ret = 0;
1393
1394 /* See if we need a PT_IA_64_ARCHEXT segment. */
1395 s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1396 if (s && (s->flags & SEC_LOAD))
1397 ++ret;
1398
1399 /* Count how many PT_IA_64_UNWIND segments we need. */
1400 for (s = abfd->sections; s; s = s->next)
1401 if (is_unwind_section_name (abfd, s->name) && (s->flags & SEC_LOAD))
1402 ++ret;
1403
1404 return ret;
1405 }
1406
1407 static bfd_boolean
1408 elfNN_ia64_modify_segment_map (abfd)
1409 bfd *abfd;
1410 {
1411 struct elf_segment_map *m, **pm;
1412 Elf_Internal_Shdr *hdr;
1413 asection *s;
1414
1415 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1416 all PT_LOAD segments. */
1417 s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1418 if (s && (s->flags & SEC_LOAD))
1419 {
1420 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
1421 if (m->p_type == PT_IA_64_ARCHEXT)
1422 break;
1423 if (m == NULL)
1424 {
1425 m = ((struct elf_segment_map *)
1426 bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
1427 if (m == NULL)
1428 return FALSE;
1429
1430 m->p_type = PT_IA_64_ARCHEXT;
1431 m->count = 1;
1432 m->sections[0] = s;
1433
1434 /* We want to put it after the PHDR and INTERP segments. */
1435 pm = &elf_tdata (abfd)->segment_map;
1436 while (*pm != NULL
1437 && ((*pm)->p_type == PT_PHDR
1438 || (*pm)->p_type == PT_INTERP))
1439 pm = &(*pm)->next;
1440
1441 m->next = *pm;
1442 *pm = m;
1443 }
1444 }
1445
1446 /* Install PT_IA_64_UNWIND segments, if needed. */
1447 for (s = abfd->sections; s; s = s->next)
1448 {
1449 hdr = &elf_section_data (s)->this_hdr;
1450 if (hdr->sh_type != SHT_IA_64_UNWIND)
1451 continue;
1452
1453 if (s && (s->flags & SEC_LOAD))
1454 {
1455 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
1456 if (m->p_type == PT_IA_64_UNWIND)
1457 {
1458 int i;
1459
1460 /* Look through all sections in the unwind segment
1461 for a match since there may be multiple sections
1462 to a segment. */
1463 for (i = m->count - 1; i >= 0; --i)
1464 if (m->sections[i] == s)
1465 break;
1466
1467 if (i >= 0)
1468 break;
1469 }
1470
1471 if (m == NULL)
1472 {
1473 m = ((struct elf_segment_map *)
1474 bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
1475 if (m == NULL)
1476 return FALSE;
1477
1478 m->p_type = PT_IA_64_UNWIND;
1479 m->count = 1;
1480 m->sections[0] = s;
1481 m->next = NULL;
1482
1483 /* We want to put it last. */
1484 pm = &elf_tdata (abfd)->segment_map;
1485 while (*pm != NULL)
1486 pm = &(*pm)->next;
1487 *pm = m;
1488 }
1489 }
1490 }
1491
1492 /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1493 the input sections for each output section in the segment and testing
1494 for SHF_IA_64_NORECOV on each. */
1495 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
1496 if (m->p_type == PT_LOAD)
1497 {
1498 int i;
1499 for (i = m->count - 1; i >= 0; --i)
1500 {
1501 struct bfd_link_order *order = m->sections[i]->link_order_head;
1502 while (order)
1503 {
1504 if (order->type == bfd_indirect_link_order)
1505 {
1506 asection *is = order->u.indirect.section;
1507 bfd_vma flags = elf_section_data(is)->this_hdr.sh_flags;
1508 if (flags & SHF_IA_64_NORECOV)
1509 {
1510 m->p_flags |= PF_IA_64_NORECOV;
1511 goto found;
1512 }
1513 }
1514 order = order->next;
1515 }
1516 }
1517 found:;
1518 }
1519
1520 return TRUE;
1521 }
1522
1523 /* According to the Tahoe assembler spec, all labels starting with a
1524 '.' are local. */
1525
1526 static bfd_boolean
1527 elfNN_ia64_is_local_label_name (abfd, name)
1528 bfd *abfd ATTRIBUTE_UNUSED;
1529 const char *name;
1530 {
1531 return name[0] == '.';
1532 }
1533
1534 /* Should we do dynamic things to this symbol? */
1535
1536 static bfd_boolean
1537 elfNN_ia64_dynamic_symbol_p (h, info, r_type)
1538 struct elf_link_hash_entry *h;
1539 struct bfd_link_info *info;
1540 int r_type;
1541 {
1542 bfd_boolean ignore_protected
1543 = ((r_type & 0xf8) == 0x40 /* FPTR relocs */
1544 || (r_type & 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1545
1546 return _bfd_elf_dynamic_symbol_p (h, info, ignore_protected);
1547 }
1548 \f
1549 static struct bfd_hash_entry*
1550 elfNN_ia64_new_elf_hash_entry (entry, table, string)
1551 struct bfd_hash_entry *entry;
1552 struct bfd_hash_table *table;
1553 const char *string;
1554 {
1555 struct elfNN_ia64_link_hash_entry *ret;
1556 ret = (struct elfNN_ia64_link_hash_entry *) entry;
1557
1558 /* Allocate the structure if it has not already been allocated by a
1559 subclass. */
1560 if (!ret)
1561 ret = bfd_hash_allocate (table, sizeof (*ret));
1562
1563 if (!ret)
1564 return 0;
1565
1566 /* Initialize our local data. All zeros, and definitely easier
1567 than setting a handful of bit fields. */
1568 memset (ret, 0, sizeof (*ret));
1569
1570 /* Call the allocation method of the superclass. */
1571 ret = ((struct elfNN_ia64_link_hash_entry *)
1572 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1573 table, string));
1574
1575 return (struct bfd_hash_entry *) ret;
1576 }
1577
1578 static void
1579 elfNN_ia64_hash_copy_indirect (bed, xdir, xind)
1580 const struct elf_backend_data *bed ATTRIBUTE_UNUSED;
1581 struct elf_link_hash_entry *xdir, *xind;
1582 {
1583 struct elfNN_ia64_link_hash_entry *dir, *ind;
1584
1585 dir = (struct elfNN_ia64_link_hash_entry *) xdir;
1586 ind = (struct elfNN_ia64_link_hash_entry *) xind;
1587
1588 /* Copy down any references that we may have already seen to the
1589 symbol which just became indirect. */
1590
1591 dir->root.elf_link_hash_flags |=
1592 (ind->root.elf_link_hash_flags
1593 & (ELF_LINK_HASH_REF_DYNAMIC
1594 | ELF_LINK_HASH_REF_REGULAR
1595 | ELF_LINK_HASH_REF_REGULAR_NONWEAK));
1596
1597 if (ind->root.root.type != bfd_link_hash_indirect)
1598 return;
1599
1600 /* Copy over the got and plt data. This would have been done
1601 by check_relocs. */
1602
1603 if (dir->info == NULL)
1604 {
1605 struct elfNN_ia64_dyn_sym_info *dyn_i;
1606
1607 dir->info = dyn_i = ind->info;
1608 ind->info = NULL;
1609
1610 /* Fix up the dyn_sym_info pointers to the global symbol. */
1611 for (; dyn_i; dyn_i = dyn_i->next)
1612 dyn_i->h = &dir->root;
1613 }
1614 BFD_ASSERT (ind->info == NULL);
1615
1616 /* Copy over the dynindx. */
1617
1618 if (dir->root.dynindx == -1)
1619 {
1620 dir->root.dynindx = ind->root.dynindx;
1621 dir->root.dynstr_index = ind->root.dynstr_index;
1622 ind->root.dynindx = -1;
1623 ind->root.dynstr_index = 0;
1624 }
1625 BFD_ASSERT (ind->root.dynindx == -1);
1626 }
1627
1628 static void
1629 elfNN_ia64_hash_hide_symbol (info, xh, force_local)
1630 struct bfd_link_info *info;
1631 struct elf_link_hash_entry *xh;
1632 bfd_boolean force_local;
1633 {
1634 struct elfNN_ia64_link_hash_entry *h;
1635 struct elfNN_ia64_dyn_sym_info *dyn_i;
1636
1637 h = (struct elfNN_ia64_link_hash_entry *)xh;
1638
1639 _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
1640
1641 for (dyn_i = h->info; dyn_i; dyn_i = dyn_i->next)
1642 {
1643 dyn_i->want_plt2 = 0;
1644 dyn_i->want_plt = 0;
1645 }
1646 }
1647
1648 /* Compute a hash of a local hash entry. */
1649
1650 static hashval_t
1651 elfNN_ia64_local_htab_hash (ptr)
1652 const void *ptr;
1653 {
1654 struct elfNN_ia64_local_hash_entry *entry
1655 = (struct elfNN_ia64_local_hash_entry *) ptr;
1656
1657 return (((entry->id & 0xff) << 24) | ((entry->id & 0xff00) << 8))
1658 ^ entry->r_sym ^ (entry->id >> 16);
1659 }
1660
1661 /* Compare local hash entries. */
1662
1663 static int
1664 elfNN_ia64_local_htab_eq (ptr1, ptr2)
1665 const void *ptr1, *ptr2;
1666 {
1667 struct elfNN_ia64_local_hash_entry *entry1
1668 = (struct elfNN_ia64_local_hash_entry *) ptr1;
1669 struct elfNN_ia64_local_hash_entry *entry2
1670 = (struct elfNN_ia64_local_hash_entry *) ptr2;
1671
1672 return entry1->id == entry2->id && entry1->r_sym == entry2->r_sym;
1673 }
1674
1675 /* Create the derived linker hash table. The IA-64 ELF port uses this
1676 derived hash table to keep information specific to the IA-64 ElF
1677 linker (without using static variables). */
1678
1679 static struct bfd_link_hash_table*
1680 elfNN_ia64_hash_table_create (abfd)
1681 bfd *abfd;
1682 {
1683 struct elfNN_ia64_link_hash_table *ret;
1684
1685 ret = bfd_zmalloc ((bfd_size_type) sizeof (*ret));
1686 if (!ret)
1687 return 0;
1688
1689 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
1690 elfNN_ia64_new_elf_hash_entry))
1691 {
1692 free (ret);
1693 return 0;
1694 }
1695
1696 ret->loc_hash_table = htab_try_create (1024, elfNN_ia64_local_htab_hash,
1697 elfNN_ia64_local_htab_eq, NULL);
1698 ret->loc_hash_memory = objalloc_create ();
1699 if (!ret->loc_hash_table || !ret->loc_hash_memory)
1700 {
1701 free (ret);
1702 return 0;
1703 }
1704
1705 return &ret->root.root;
1706 }
1707
1708 /* Destroy IA-64 linker hash table. */
1709
1710 static void
1711 elfNN_ia64_hash_table_free (hash)
1712 struct bfd_link_hash_table *hash;
1713 {
1714 struct elfNN_ia64_link_hash_table *ia64_info
1715 = (struct elfNN_ia64_link_hash_table *) hash;
1716 if (ia64_info->loc_hash_table)
1717 htab_delete (ia64_info->loc_hash_table);
1718 if (ia64_info->loc_hash_memory)
1719 objalloc_free ((struct objalloc *) ia64_info->loc_hash_memory);
1720 _bfd_generic_link_hash_table_free (hash);
1721 }
1722
1723 /* Traverse both local and global hash tables. */
1724
1725 struct elfNN_ia64_dyn_sym_traverse_data
1726 {
1727 bfd_boolean (*func) PARAMS ((struct elfNN_ia64_dyn_sym_info *, PTR));
1728 PTR data;
1729 };
1730
1731 static bfd_boolean
1732 elfNN_ia64_global_dyn_sym_thunk (xentry, xdata)
1733 struct bfd_hash_entry *xentry;
1734 PTR xdata;
1735 {
1736 struct elfNN_ia64_link_hash_entry *entry
1737 = (struct elfNN_ia64_link_hash_entry *) xentry;
1738 struct elfNN_ia64_dyn_sym_traverse_data *data
1739 = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1740 struct elfNN_ia64_dyn_sym_info *dyn_i;
1741
1742 if (entry->root.root.type == bfd_link_hash_warning)
1743 entry = (struct elfNN_ia64_link_hash_entry *) entry->root.root.u.i.link;
1744
1745 for (dyn_i = entry->info; dyn_i; dyn_i = dyn_i->next)
1746 if (! (*data->func) (dyn_i, data->data))
1747 return FALSE;
1748 return TRUE;
1749 }
1750
1751 static bfd_boolean
1752 elfNN_ia64_local_dyn_sym_thunk (slot, xdata)
1753 void **slot;
1754 PTR xdata;
1755 {
1756 struct elfNN_ia64_local_hash_entry *entry
1757 = (struct elfNN_ia64_local_hash_entry *) *slot;
1758 struct elfNN_ia64_dyn_sym_traverse_data *data
1759 = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1760 struct elfNN_ia64_dyn_sym_info *dyn_i;
1761
1762 for (dyn_i = entry->info; dyn_i; dyn_i = dyn_i->next)
1763 if (! (*data->func) (dyn_i, data->data))
1764 return 0;
1765 return 1;
1766 }
1767
1768 static void
1769 elfNN_ia64_dyn_sym_traverse (ia64_info, func, data)
1770 struct elfNN_ia64_link_hash_table *ia64_info;
1771 bfd_boolean (*func) PARAMS ((struct elfNN_ia64_dyn_sym_info *, PTR));
1772 PTR data;
1773 {
1774 struct elfNN_ia64_dyn_sym_traverse_data xdata;
1775
1776 xdata.func = func;
1777 xdata.data = data;
1778
1779 elf_link_hash_traverse (&ia64_info->root,
1780 elfNN_ia64_global_dyn_sym_thunk, &xdata);
1781 htab_traverse (ia64_info->loc_hash_table,
1782 elfNN_ia64_local_dyn_sym_thunk, &xdata);
1783 }
1784 \f
1785 static bfd_boolean
1786 elfNN_ia64_create_dynamic_sections (abfd, info)
1787 bfd *abfd;
1788 struct bfd_link_info *info;
1789 {
1790 struct elfNN_ia64_link_hash_table *ia64_info;
1791 asection *s;
1792
1793 if (! _bfd_elf_create_dynamic_sections (abfd, info))
1794 return FALSE;
1795
1796 ia64_info = elfNN_ia64_hash_table (info);
1797
1798 ia64_info->plt_sec = bfd_get_section_by_name (abfd, ".plt");
1799 ia64_info->got_sec = bfd_get_section_by_name (abfd, ".got");
1800
1801 {
1802 flagword flags = bfd_get_section_flags (abfd, ia64_info->got_sec);
1803 bfd_set_section_flags (abfd, ia64_info->got_sec, SEC_SMALL_DATA | flags);
1804 /* The .got section is always aligned at 8 bytes. */
1805 bfd_set_section_alignment (abfd, ia64_info->got_sec, 3);
1806 }
1807
1808 if (!get_pltoff (abfd, info, ia64_info))
1809 return FALSE;
1810
1811 s = bfd_make_section(abfd, ".rela.IA_64.pltoff");
1812 if (s == NULL
1813 || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
1814 | SEC_HAS_CONTENTS
1815 | SEC_IN_MEMORY
1816 | SEC_LINKER_CREATED
1817 | SEC_READONLY))
1818 || !bfd_set_section_alignment (abfd, s, 3))
1819 return FALSE;
1820 ia64_info->rel_pltoff_sec = s;
1821
1822 s = bfd_make_section(abfd, ".rela.got");
1823 if (s == NULL
1824 || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
1825 | SEC_HAS_CONTENTS
1826 | SEC_IN_MEMORY
1827 | SEC_LINKER_CREATED
1828 | SEC_READONLY))
1829 || !bfd_set_section_alignment (abfd, s, 3))
1830 return FALSE;
1831 ia64_info->rel_got_sec = s;
1832
1833 return TRUE;
1834 }
1835
1836 /* Find and/or create a hash entry for local symbol. */
1837 static struct elfNN_ia64_local_hash_entry *
1838 get_local_sym_hash (ia64_info, abfd, rel, create)
1839 struct elfNN_ia64_link_hash_table *ia64_info;
1840 bfd *abfd;
1841 const Elf_Internal_Rela *rel;
1842 bfd_boolean create;
1843 {
1844 struct elfNN_ia64_local_hash_entry e, *ret;
1845 asection *sec = abfd->sections;
1846 hashval_t h = (((sec->id & 0xff) << 24) | ((sec->id & 0xff00) << 8))
1847 ^ ELFNN_R_SYM (rel->r_info) ^ (sec->id >> 16);
1848 void **slot;
1849
1850 e.id = sec->id;
1851 e.r_sym = ELFNN_R_SYM (rel->r_info);
1852 slot = htab_find_slot_with_hash (ia64_info->loc_hash_table, &e, h,
1853 create ? INSERT : NO_INSERT);
1854
1855 if (!slot)
1856 return NULL;
1857
1858 if (*slot)
1859 return (struct elfNN_ia64_local_hash_entry *) *slot;
1860
1861 ret = (struct elfNN_ia64_local_hash_entry *)
1862 objalloc_alloc ((struct objalloc *) ia64_info->loc_hash_memory,
1863 sizeof (struct elfNN_ia64_local_hash_entry));
1864 if (ret)
1865 {
1866 memset (ret, 0, sizeof (*ret));
1867 ret->id = sec->id;
1868 ret->r_sym = ELFNN_R_SYM (rel->r_info);
1869 *slot = ret;
1870 }
1871 return ret;
1872 }
1873
1874 /* Find and/or create a descriptor for dynamic symbol info. This will
1875 vary based on global or local symbol, and the addend to the reloc. */
1876
1877 static struct elfNN_ia64_dyn_sym_info *
1878 get_dyn_sym_info (ia64_info, h, abfd, rel, create)
1879 struct elfNN_ia64_link_hash_table *ia64_info;
1880 struct elf_link_hash_entry *h;
1881 bfd *abfd;
1882 const Elf_Internal_Rela *rel;
1883 bfd_boolean create;
1884 {
1885 struct elfNN_ia64_dyn_sym_info **pp;
1886 struct elfNN_ia64_dyn_sym_info *dyn_i;
1887 bfd_vma addend = rel ? rel->r_addend : 0;
1888
1889 if (h)
1890 pp = &((struct elfNN_ia64_link_hash_entry *)h)->info;
1891 else
1892 {
1893 struct elfNN_ia64_local_hash_entry *loc_h;
1894
1895 loc_h = get_local_sym_hash (ia64_info, abfd, rel, create);
1896 if (!loc_h)
1897 {
1898 BFD_ASSERT (!create);
1899 return NULL;
1900 }
1901
1902 pp = &loc_h->info;
1903 }
1904
1905 for (dyn_i = *pp; dyn_i && dyn_i->addend != addend; dyn_i = *pp)
1906 pp = &dyn_i->next;
1907
1908 if (dyn_i == NULL && create)
1909 {
1910 dyn_i = ((struct elfNN_ia64_dyn_sym_info *)
1911 bfd_zalloc (abfd, (bfd_size_type) sizeof *dyn_i));
1912 *pp = dyn_i;
1913 dyn_i->addend = addend;
1914 }
1915
1916 return dyn_i;
1917 }
1918
1919 static asection *
1920 get_got (abfd, info, ia64_info)
1921 bfd *abfd;
1922 struct bfd_link_info *info;
1923 struct elfNN_ia64_link_hash_table *ia64_info;
1924 {
1925 asection *got;
1926 bfd *dynobj;
1927
1928 got = ia64_info->got_sec;
1929 if (!got)
1930 {
1931 flagword flags;
1932
1933 dynobj = ia64_info->root.dynobj;
1934 if (!dynobj)
1935 ia64_info->root.dynobj = dynobj = abfd;
1936 if (!_bfd_elf_create_got_section (dynobj, info))
1937 return 0;
1938
1939 got = bfd_get_section_by_name (dynobj, ".got");
1940 BFD_ASSERT (got);
1941 ia64_info->got_sec = got;
1942
1943 /* The .got section is always aligned at 8 bytes. */
1944 if (!bfd_set_section_alignment (abfd, got, 3))
1945 return 0;
1946
1947 flags = bfd_get_section_flags (abfd, got);
1948 bfd_set_section_flags (abfd, got, SEC_SMALL_DATA | flags);
1949 }
1950
1951 return got;
1952 }
1953
1954 /* Create function descriptor section (.opd). This section is called .opd
1955 because it contains "official prodecure descriptors". The "official"
1956 refers to the fact that these descriptors are used when taking the address
1957 of a procedure, thus ensuring a unique address for each procedure. */
1958
1959 static asection *
1960 get_fptr (abfd, info, ia64_info)
1961 bfd *abfd;
1962 struct bfd_link_info *info;
1963 struct elfNN_ia64_link_hash_table *ia64_info;
1964 {
1965 asection *fptr;
1966 bfd *dynobj;
1967
1968 fptr = ia64_info->fptr_sec;
1969 if (!fptr)
1970 {
1971 dynobj = ia64_info->root.dynobj;
1972 if (!dynobj)
1973 ia64_info->root.dynobj = dynobj = abfd;
1974
1975 fptr = bfd_make_section (dynobj, ".opd");
1976 if (!fptr
1977 || !bfd_set_section_flags (dynobj, fptr,
1978 (SEC_ALLOC
1979 | SEC_LOAD
1980 | SEC_HAS_CONTENTS
1981 | SEC_IN_MEMORY
1982 | (info->pie ? 0 : SEC_READONLY)
1983 | SEC_LINKER_CREATED))
1984 || !bfd_set_section_alignment (abfd, fptr, 4))
1985 {
1986 BFD_ASSERT (0);
1987 return NULL;
1988 }
1989
1990 ia64_info->fptr_sec = fptr;
1991
1992 if (info->pie)
1993 {
1994 asection *fptr_rel;
1995 fptr_rel = bfd_make_section(abfd, ".rela.opd");
1996 if (fptr_rel == NULL
1997 || !bfd_set_section_flags (abfd, fptr_rel,
1998 (SEC_ALLOC | SEC_LOAD
1999 | SEC_HAS_CONTENTS
2000 | SEC_IN_MEMORY
2001 | SEC_LINKER_CREATED
2002 | SEC_READONLY))
2003 || !bfd_set_section_alignment (abfd, fptr_rel, 3))
2004 {
2005 BFD_ASSERT (0);
2006 return NULL;
2007 }
2008
2009 ia64_info->rel_fptr_sec = fptr_rel;
2010 }
2011 }
2012
2013 return fptr;
2014 }
2015
2016 static asection *
2017 get_pltoff (abfd, info, ia64_info)
2018 bfd *abfd;
2019 struct bfd_link_info *info ATTRIBUTE_UNUSED;
2020 struct elfNN_ia64_link_hash_table *ia64_info;
2021 {
2022 asection *pltoff;
2023 bfd *dynobj;
2024
2025 pltoff = ia64_info->pltoff_sec;
2026 if (!pltoff)
2027 {
2028 dynobj = ia64_info->root.dynobj;
2029 if (!dynobj)
2030 ia64_info->root.dynobj = dynobj = abfd;
2031
2032 pltoff = bfd_make_section (dynobj, ELF_STRING_ia64_pltoff);
2033 if (!pltoff
2034 || !bfd_set_section_flags (dynobj, pltoff,
2035 (SEC_ALLOC
2036 | SEC_LOAD
2037 | SEC_HAS_CONTENTS
2038 | SEC_IN_MEMORY
2039 | SEC_SMALL_DATA
2040 | SEC_LINKER_CREATED))
2041 || !bfd_set_section_alignment (abfd, pltoff, 4))
2042 {
2043 BFD_ASSERT (0);
2044 return NULL;
2045 }
2046
2047 ia64_info->pltoff_sec = pltoff;
2048 }
2049
2050 return pltoff;
2051 }
2052
2053 static asection *
2054 get_reloc_section (abfd, ia64_info, sec, create)
2055 bfd *abfd;
2056 struct elfNN_ia64_link_hash_table *ia64_info;
2057 asection *sec;
2058 bfd_boolean create;
2059 {
2060 const char *srel_name;
2061 asection *srel;
2062 bfd *dynobj;
2063
2064 srel_name = (bfd_elf_string_from_elf_section
2065 (abfd, elf_elfheader(abfd)->e_shstrndx,
2066 elf_section_data(sec)->rel_hdr.sh_name));
2067 if (srel_name == NULL)
2068 return NULL;
2069
2070 BFD_ASSERT ((strncmp (srel_name, ".rela", 5) == 0
2071 && strcmp (bfd_get_section_name (abfd, sec),
2072 srel_name+5) == 0)
2073 || (strncmp (srel_name, ".rel", 4) == 0
2074 && strcmp (bfd_get_section_name (abfd, sec),
2075 srel_name+4) == 0));
2076
2077 dynobj = ia64_info->root.dynobj;
2078 if (!dynobj)
2079 ia64_info->root.dynobj = dynobj = abfd;
2080
2081 srel = bfd_get_section_by_name (dynobj, srel_name);
2082 if (srel == NULL && create)
2083 {
2084 srel = bfd_make_section (dynobj, srel_name);
2085 if (srel == NULL
2086 || !bfd_set_section_flags (dynobj, srel,
2087 (SEC_ALLOC
2088 | SEC_LOAD
2089 | SEC_HAS_CONTENTS
2090 | SEC_IN_MEMORY
2091 | SEC_LINKER_CREATED
2092 | SEC_READONLY))
2093 || !bfd_set_section_alignment (dynobj, srel, 3))
2094 return NULL;
2095 }
2096
2097 if (sec->flags & SEC_READONLY)
2098 ia64_info->reltext = 1;
2099
2100 return srel;
2101 }
2102
2103 static bfd_boolean
2104 count_dyn_reloc (abfd, dyn_i, srel, type)
2105 bfd *abfd;
2106 struct elfNN_ia64_dyn_sym_info *dyn_i;
2107 asection *srel;
2108 int type;
2109 {
2110 struct elfNN_ia64_dyn_reloc_entry *rent;
2111
2112 for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2113 if (rent->srel == srel && rent->type == type)
2114 break;
2115
2116 if (!rent)
2117 {
2118 rent = ((struct elfNN_ia64_dyn_reloc_entry *)
2119 bfd_alloc (abfd, (bfd_size_type) sizeof (*rent)));
2120 if (!rent)
2121 return FALSE;
2122
2123 rent->next = dyn_i->reloc_entries;
2124 rent->srel = srel;
2125 rent->type = type;
2126 rent->count = 0;
2127 dyn_i->reloc_entries = rent;
2128 }
2129 rent->count++;
2130
2131 return TRUE;
2132 }
2133
2134 static bfd_boolean
2135 elfNN_ia64_check_relocs (abfd, info, sec, relocs)
2136 bfd *abfd;
2137 struct bfd_link_info *info;
2138 asection *sec;
2139 const Elf_Internal_Rela *relocs;
2140 {
2141 struct elfNN_ia64_link_hash_table *ia64_info;
2142 const Elf_Internal_Rela *relend;
2143 Elf_Internal_Shdr *symtab_hdr;
2144 const Elf_Internal_Rela *rel;
2145 asection *got, *fptr, *srel;
2146
2147 if (info->relocatable)
2148 return TRUE;
2149
2150 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
2151 ia64_info = elfNN_ia64_hash_table (info);
2152
2153 got = fptr = srel = NULL;
2154
2155 relend = relocs + sec->reloc_count;
2156 for (rel = relocs; rel < relend; ++rel)
2157 {
2158 enum {
2159 NEED_GOT = 1,
2160 NEED_GOTX = 2,
2161 NEED_FPTR = 4,
2162 NEED_PLTOFF = 8,
2163 NEED_MIN_PLT = 16,
2164 NEED_FULL_PLT = 32,
2165 NEED_DYNREL = 64,
2166 NEED_LTOFF_FPTR = 128,
2167 NEED_TPREL = 256,
2168 NEED_DTPMOD = 512,
2169 NEED_DTPREL = 1024
2170 };
2171
2172 struct elf_link_hash_entry *h = NULL;
2173 unsigned long r_symndx = ELFNN_R_SYM (rel->r_info);
2174 struct elfNN_ia64_dyn_sym_info *dyn_i;
2175 int need_entry;
2176 bfd_boolean maybe_dynamic;
2177 int dynrel_type = R_IA64_NONE;
2178
2179 if (r_symndx >= symtab_hdr->sh_info)
2180 {
2181 /* We're dealing with a global symbol -- find its hash entry
2182 and mark it as being referenced. */
2183 long indx = r_symndx - symtab_hdr->sh_info;
2184 h = elf_sym_hashes (abfd)[indx];
2185 while (h->root.type == bfd_link_hash_indirect
2186 || h->root.type == bfd_link_hash_warning)
2187 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2188
2189 h->elf_link_hash_flags |= ELF_LINK_HASH_REF_REGULAR;
2190 }
2191
2192 /* We can only get preliminary data on whether a symbol is
2193 locally or externally defined, as not all of the input files
2194 have yet been processed. Do something with what we know, as
2195 this may help reduce memory usage and processing time later. */
2196 maybe_dynamic = FALSE;
2197 if (h && ((!info->executable
2198 && (!info->symbolic || info->unresolved_syms_in_shared_libs == RM_IGNORE))
2199 || ! (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)
2200 || h->root.type == bfd_link_hash_defweak))
2201 maybe_dynamic = TRUE;
2202
2203 need_entry = 0;
2204 switch (ELFNN_R_TYPE (rel->r_info))
2205 {
2206 case R_IA64_TPREL64MSB:
2207 case R_IA64_TPREL64LSB:
2208 if (info->shared || maybe_dynamic)
2209 need_entry = NEED_DYNREL;
2210 dynrel_type = R_IA64_TPREL64LSB;
2211 if (info->shared)
2212 info->flags |= DF_STATIC_TLS;
2213 break;
2214
2215 case R_IA64_LTOFF_TPREL22:
2216 need_entry = NEED_TPREL;
2217 if (info->shared)
2218 info->flags |= DF_STATIC_TLS;
2219 break;
2220
2221 case R_IA64_DTPREL64MSB:
2222 case R_IA64_DTPREL64LSB:
2223 if (info->shared || maybe_dynamic)
2224 need_entry = NEED_DYNREL;
2225 dynrel_type = R_IA64_DTPREL64LSB;
2226 break;
2227
2228 case R_IA64_LTOFF_DTPREL22:
2229 need_entry = NEED_DTPREL;
2230 break;
2231
2232 case R_IA64_DTPMOD64MSB:
2233 case R_IA64_DTPMOD64LSB:
2234 if (info->shared || maybe_dynamic)
2235 need_entry = NEED_DYNREL;
2236 dynrel_type = R_IA64_DTPMOD64LSB;
2237 break;
2238
2239 case R_IA64_LTOFF_DTPMOD22:
2240 need_entry = NEED_DTPMOD;
2241 break;
2242
2243 case R_IA64_LTOFF_FPTR22:
2244 case R_IA64_LTOFF_FPTR64I:
2245 case R_IA64_LTOFF_FPTR32MSB:
2246 case R_IA64_LTOFF_FPTR32LSB:
2247 case R_IA64_LTOFF_FPTR64MSB:
2248 case R_IA64_LTOFF_FPTR64LSB:
2249 need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR;
2250 break;
2251
2252 case R_IA64_FPTR64I:
2253 case R_IA64_FPTR32MSB:
2254 case R_IA64_FPTR32LSB:
2255 case R_IA64_FPTR64MSB:
2256 case R_IA64_FPTR64LSB:
2257 if (info->shared || h)
2258 need_entry = NEED_FPTR | NEED_DYNREL;
2259 else
2260 need_entry = NEED_FPTR;
2261 dynrel_type = R_IA64_FPTR64LSB;
2262 break;
2263
2264 case R_IA64_LTOFF22:
2265 case R_IA64_LTOFF64I:
2266 need_entry = NEED_GOT;
2267 break;
2268
2269 case R_IA64_LTOFF22X:
2270 need_entry = NEED_GOTX;
2271 break;
2272
2273 case R_IA64_PLTOFF22:
2274 case R_IA64_PLTOFF64I:
2275 case R_IA64_PLTOFF64MSB:
2276 case R_IA64_PLTOFF64LSB:
2277 need_entry = NEED_PLTOFF;
2278 if (h)
2279 {
2280 if (maybe_dynamic)
2281 need_entry |= NEED_MIN_PLT;
2282 }
2283 else
2284 {
2285 (*info->callbacks->warning)
2286 (info, _("@pltoff reloc against local symbol"), 0,
2287 abfd, 0, (bfd_vma) 0);
2288 }
2289 break;
2290
2291 case R_IA64_PCREL21B:
2292 case R_IA64_PCREL60B:
2293 /* Depending on where this symbol is defined, we may or may not
2294 need a full plt entry. Only skip if we know we'll not need
2295 the entry -- static or symbolic, and the symbol definition
2296 has already been seen. */
2297 if (maybe_dynamic && rel->r_addend == 0)
2298 need_entry = NEED_FULL_PLT;
2299 break;
2300
2301 case R_IA64_IMM14:
2302 case R_IA64_IMM22:
2303 case R_IA64_IMM64:
2304 case R_IA64_DIR32MSB:
2305 case R_IA64_DIR32LSB:
2306 case R_IA64_DIR64MSB:
2307 case R_IA64_DIR64LSB:
2308 /* Shared objects will always need at least a REL relocation. */
2309 if (info->shared || maybe_dynamic)
2310 need_entry = NEED_DYNREL;
2311 dynrel_type = R_IA64_DIR64LSB;
2312 break;
2313
2314 case R_IA64_IPLTMSB:
2315 case R_IA64_IPLTLSB:
2316 /* Shared objects will always need at least a REL relocation. */
2317 if (info->shared || maybe_dynamic)
2318 need_entry = NEED_DYNREL;
2319 dynrel_type = R_IA64_IPLTLSB;
2320 break;
2321
2322 case R_IA64_PCREL22:
2323 case R_IA64_PCREL64I:
2324 case R_IA64_PCREL32MSB:
2325 case R_IA64_PCREL32LSB:
2326 case R_IA64_PCREL64MSB:
2327 case R_IA64_PCREL64LSB:
2328 if (maybe_dynamic)
2329 need_entry = NEED_DYNREL;
2330 dynrel_type = R_IA64_PCREL64LSB;
2331 break;
2332 }
2333
2334 if (!need_entry)
2335 continue;
2336
2337 if ((need_entry & NEED_FPTR) != 0
2338 && rel->r_addend)
2339 {
2340 (*info->callbacks->warning)
2341 (info, _("non-zero addend in @fptr reloc"), 0,
2342 abfd, 0, (bfd_vma) 0);
2343 }
2344
2345 dyn_i = get_dyn_sym_info (ia64_info, h, abfd, rel, TRUE);
2346
2347 /* Record whether or not this is a local symbol. */
2348 dyn_i->h = h;
2349
2350 /* Create what's needed. */
2351 if (need_entry & (NEED_GOT | NEED_GOTX | NEED_TPREL
2352 | NEED_DTPMOD | NEED_DTPREL))
2353 {
2354 if (!got)
2355 {
2356 got = get_got (abfd, info, ia64_info);
2357 if (!got)
2358 return FALSE;
2359 }
2360 if (need_entry & NEED_GOT)
2361 dyn_i->want_got = 1;
2362 if (need_entry & NEED_GOTX)
2363 dyn_i->want_gotx = 1;
2364 if (need_entry & NEED_TPREL)
2365 dyn_i->want_tprel = 1;
2366 if (need_entry & NEED_DTPMOD)
2367 dyn_i->want_dtpmod = 1;
2368 if (need_entry & NEED_DTPREL)
2369 dyn_i->want_dtprel = 1;
2370 }
2371 if (need_entry & NEED_FPTR)
2372 {
2373 if (!fptr)
2374 {
2375 fptr = get_fptr (abfd, info, ia64_info);
2376 if (!fptr)
2377 return FALSE;
2378 }
2379
2380 /* FPTRs for shared libraries are allocated by the dynamic
2381 linker. Make sure this local symbol will appear in the
2382 dynamic symbol table. */
2383 if (!h && info->shared)
2384 {
2385 if (! (_bfd_elfNN_link_record_local_dynamic_symbol
2386 (info, abfd, (long) r_symndx)))
2387 return FALSE;
2388 }
2389
2390 dyn_i->want_fptr = 1;
2391 }
2392 if (need_entry & NEED_LTOFF_FPTR)
2393 dyn_i->want_ltoff_fptr = 1;
2394 if (need_entry & (NEED_MIN_PLT | NEED_FULL_PLT))
2395 {
2396 if (!ia64_info->root.dynobj)
2397 ia64_info->root.dynobj = abfd;
2398 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
2399 dyn_i->want_plt = 1;
2400 }
2401 if (need_entry & NEED_FULL_PLT)
2402 dyn_i->want_plt2 = 1;
2403 if (need_entry & NEED_PLTOFF)
2404 dyn_i->want_pltoff = 1;
2405 if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC))
2406 {
2407 if (!srel)
2408 {
2409 srel = get_reloc_section (abfd, ia64_info, sec, TRUE);
2410 if (!srel)
2411 return FALSE;
2412 }
2413 if (!count_dyn_reloc (abfd, dyn_i, srel, dynrel_type))
2414 return FALSE;
2415 }
2416 }
2417
2418 return TRUE;
2419 }
2420
2421 /* For cleanliness, and potentially faster dynamic loading, allocate
2422 external GOT entries first. */
2423
2424 static bfd_boolean
2425 allocate_global_data_got (dyn_i, data)
2426 struct elfNN_ia64_dyn_sym_info *dyn_i;
2427 PTR data;
2428 {
2429 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2430
2431 if ((dyn_i->want_got || dyn_i->want_gotx)
2432 && ! dyn_i->want_fptr
2433 && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2434 {
2435 dyn_i->got_offset = x->ofs;
2436 x->ofs += 8;
2437 }
2438 if (dyn_i->want_tprel)
2439 {
2440 dyn_i->tprel_offset = x->ofs;
2441 x->ofs += 8;
2442 }
2443 if (dyn_i->want_dtpmod)
2444 {
2445 if (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2446 {
2447 dyn_i->dtpmod_offset = x->ofs;
2448 x->ofs += 8;
2449 }
2450 else
2451 {
2452 struct elfNN_ia64_link_hash_table *ia64_info;
2453
2454 ia64_info = elfNN_ia64_hash_table (x->info);
2455 if (ia64_info->self_dtpmod_offset == (bfd_vma) -1)
2456 {
2457 ia64_info->self_dtpmod_offset = x->ofs;
2458 x->ofs += 8;
2459 }
2460 dyn_i->dtpmod_offset = ia64_info->self_dtpmod_offset;
2461 }
2462 }
2463 if (dyn_i->want_dtprel)
2464 {
2465 dyn_i->dtprel_offset = x->ofs;
2466 x->ofs += 8;
2467 }
2468 return TRUE;
2469 }
2470
2471 /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2472
2473 static bfd_boolean
2474 allocate_global_fptr_got (dyn_i, data)
2475 struct elfNN_ia64_dyn_sym_info *dyn_i;
2476 PTR data;
2477 {
2478 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2479
2480 if (dyn_i->want_got
2481 && dyn_i->want_fptr
2482 && elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, R_IA64_FPTR64LSB))
2483 {
2484 dyn_i->got_offset = x->ofs;
2485 x->ofs += 8;
2486 }
2487 return TRUE;
2488 }
2489
2490 /* Lastly, allocate all the GOT entries for local data. */
2491
2492 static bfd_boolean
2493 allocate_local_got (dyn_i, data)
2494 struct elfNN_ia64_dyn_sym_info *dyn_i;
2495 PTR data;
2496 {
2497 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2498
2499 if ((dyn_i->want_got || dyn_i->want_gotx)
2500 && !elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0))
2501 {
2502 dyn_i->got_offset = x->ofs;
2503 x->ofs += 8;
2504 }
2505 return TRUE;
2506 }
2507
2508 /* Search for the index of a global symbol in it's defining object file. */
2509
2510 static long
2511 global_sym_index (h)
2512 struct elf_link_hash_entry *h;
2513 {
2514 struct elf_link_hash_entry **p;
2515 bfd *obj;
2516
2517 BFD_ASSERT (h->root.type == bfd_link_hash_defined
2518 || h->root.type == bfd_link_hash_defweak);
2519
2520 obj = h->root.u.def.section->owner;
2521 for (p = elf_sym_hashes (obj); *p != h; ++p)
2522 continue;
2523
2524 return p - elf_sym_hashes (obj) + elf_tdata (obj)->symtab_hdr.sh_info;
2525 }
2526
2527 /* Allocate function descriptors. We can do these for every function
2528 in a main executable that is not exported. */
2529
2530 static bfd_boolean
2531 allocate_fptr (dyn_i, data)
2532 struct elfNN_ia64_dyn_sym_info *dyn_i;
2533 PTR data;
2534 {
2535 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2536
2537 if (dyn_i->want_fptr)
2538 {
2539 struct elf_link_hash_entry *h = dyn_i->h;
2540
2541 if (h)
2542 while (h->root.type == bfd_link_hash_indirect
2543 || h->root.type == bfd_link_hash_warning)
2544 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2545
2546 if (!x->info->executable
2547 && (!h
2548 || ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
2549 || h->root.type != bfd_link_hash_undefweak))
2550 {
2551 if (h && h->dynindx == -1)
2552 {
2553 BFD_ASSERT ((h->root.type == bfd_link_hash_defined)
2554 || (h->root.type == bfd_link_hash_defweak));
2555
2556 if (!_bfd_elfNN_link_record_local_dynamic_symbol
2557 (x->info, h->root.u.def.section->owner,
2558 global_sym_index (h)))
2559 return FALSE;
2560 }
2561
2562 dyn_i->want_fptr = 0;
2563 }
2564 else if (h == NULL || h->dynindx == -1)
2565 {
2566 dyn_i->fptr_offset = x->ofs;
2567 x->ofs += 16;
2568 }
2569 else
2570 dyn_i->want_fptr = 0;
2571 }
2572 return TRUE;
2573 }
2574
2575 /* Allocate all the minimal PLT entries. */
2576
2577 static bfd_boolean
2578 allocate_plt_entries (dyn_i, data)
2579 struct elfNN_ia64_dyn_sym_info *dyn_i;
2580 PTR data;
2581 {
2582 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2583
2584 if (dyn_i->want_plt)
2585 {
2586 struct elf_link_hash_entry *h = dyn_i->h;
2587
2588 if (h)
2589 while (h->root.type == bfd_link_hash_indirect
2590 || h->root.type == bfd_link_hash_warning)
2591 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2592
2593 /* ??? Versioned symbols seem to lose ELF_LINK_HASH_NEEDS_PLT. */
2594 if (elfNN_ia64_dynamic_symbol_p (h, x->info, 0))
2595 {
2596 bfd_size_type offset = x->ofs;
2597 if (offset == 0)
2598 offset = PLT_HEADER_SIZE;
2599 dyn_i->plt_offset = offset;
2600 x->ofs = offset + PLT_MIN_ENTRY_SIZE;
2601
2602 dyn_i->want_pltoff = 1;
2603 }
2604 else
2605 {
2606 dyn_i->want_plt = 0;
2607 dyn_i->want_plt2 = 0;
2608 }
2609 }
2610 return TRUE;
2611 }
2612
2613 /* Allocate all the full PLT entries. */
2614
2615 static bfd_boolean
2616 allocate_plt2_entries (dyn_i, data)
2617 struct elfNN_ia64_dyn_sym_info *dyn_i;
2618 PTR data;
2619 {
2620 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2621
2622 if (dyn_i->want_plt2)
2623 {
2624 struct elf_link_hash_entry *h = dyn_i->h;
2625 bfd_size_type ofs = x->ofs;
2626
2627 dyn_i->plt2_offset = ofs;
2628 x->ofs = ofs + PLT_FULL_ENTRY_SIZE;
2629
2630 while (h->root.type == bfd_link_hash_indirect
2631 || h->root.type == bfd_link_hash_warning)
2632 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2633 dyn_i->h->plt.offset = ofs;
2634 }
2635 return TRUE;
2636 }
2637
2638 /* Allocate all the PLTOFF entries requested by relocations and
2639 plt entries. We can't share space with allocated FPTR entries,
2640 because the latter are not necessarily addressable by the GP.
2641 ??? Relaxation might be able to determine that they are. */
2642
2643 static bfd_boolean
2644 allocate_pltoff_entries (dyn_i, data)
2645 struct elfNN_ia64_dyn_sym_info *dyn_i;
2646 PTR data;
2647 {
2648 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2649
2650 if (dyn_i->want_pltoff)
2651 {
2652 dyn_i->pltoff_offset = x->ofs;
2653 x->ofs += 16;
2654 }
2655 return TRUE;
2656 }
2657
2658 /* Allocate dynamic relocations for those symbols that turned out
2659 to be dynamic. */
2660
2661 static bfd_boolean
2662 allocate_dynrel_entries (dyn_i, data)
2663 struct elfNN_ia64_dyn_sym_info *dyn_i;
2664 PTR data;
2665 {
2666 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2667 struct elfNN_ia64_link_hash_table *ia64_info;
2668 struct elfNN_ia64_dyn_reloc_entry *rent;
2669 bfd_boolean dynamic_symbol, shared, resolved_zero;
2670
2671 ia64_info = elfNN_ia64_hash_table (x->info);
2672
2673 /* Note that this can't be used in relation to FPTR relocs below. */
2674 dynamic_symbol = elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info, 0);
2675
2676 shared = x->info->shared;
2677 resolved_zero = (dyn_i->h
2678 && ELF_ST_VISIBILITY (dyn_i->h->other)
2679 && dyn_i->h->root.type == bfd_link_hash_undefweak);
2680
2681 /* Take care of the normal data relocations. */
2682
2683 for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2684 {
2685 int count = rent->count;
2686
2687 switch (rent->type)
2688 {
2689 case R_IA64_FPTR64LSB:
2690 /* Allocate one iff !want_fptr and not PIE, which by this point
2691 will be true only if we're actually allocating one statically
2692 in the main executable. Position independent executables
2693 need a relative reloc. */
2694 if (dyn_i->want_fptr && !x->info->pie)
2695 continue;
2696 break;
2697 case R_IA64_PCREL64LSB:
2698 if (!dynamic_symbol)
2699 continue;
2700 break;
2701 case R_IA64_DIR64LSB:
2702 if (!dynamic_symbol && !shared)
2703 continue;
2704 break;
2705 case R_IA64_IPLTLSB:
2706 if (!dynamic_symbol && !shared)
2707 continue;
2708 /* Use two REL relocations for IPLT relocations
2709 against local symbols. */
2710 if (!dynamic_symbol)
2711 count *= 2;
2712 break;
2713 case R_IA64_TPREL64LSB:
2714 case R_IA64_DTPREL64LSB:
2715 case R_IA64_DTPMOD64LSB:
2716 break;
2717 default:
2718 abort ();
2719 }
2720 rent->srel->_raw_size += sizeof (ElfNN_External_Rela) * count;
2721 }
2722
2723 /* Take care of the GOT and PLT relocations. */
2724
2725 if ((!resolved_zero
2726 && (dynamic_symbol || shared)
2727 && (dyn_i->want_got || dyn_i->want_gotx))
2728 || (dyn_i->want_ltoff_fptr
2729 && dyn_i->h
2730 && dyn_i->h->dynindx != -1))
2731 {
2732 if (!dyn_i->want_ltoff_fptr
2733 || !x->info->pie
2734 || dyn_i->h == NULL
2735 || dyn_i->h->root.type != bfd_link_hash_undefweak)
2736 ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela);
2737 }
2738 if ((dynamic_symbol || shared) && dyn_i->want_tprel)
2739 ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela);
2740 if (dynamic_symbol && dyn_i->want_dtpmod)
2741 ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela);
2742 if (dynamic_symbol && dyn_i->want_dtprel)
2743 ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela);
2744 if (ia64_info->rel_fptr_sec && dyn_i->want_fptr)
2745 {
2746 if (dyn_i->h == NULL || dyn_i->h->root.type != bfd_link_hash_undefweak)
2747 ia64_info->rel_fptr_sec->_raw_size += sizeof (ElfNN_External_Rela);
2748 }
2749
2750 if (!resolved_zero && dyn_i->want_pltoff)
2751 {
2752 bfd_size_type t = 0;
2753
2754 /* Dynamic symbols get one IPLT relocation. Local symbols in
2755 shared libraries get two REL relocations. Local symbols in
2756 main applications get nothing. */
2757 if (dynamic_symbol)
2758 t = sizeof (ElfNN_External_Rela);
2759 else if (shared)
2760 t = 2 * sizeof (ElfNN_External_Rela);
2761
2762 ia64_info->rel_pltoff_sec->_raw_size += t;
2763 }
2764
2765 return TRUE;
2766 }
2767
2768 static bfd_boolean
2769 elfNN_ia64_adjust_dynamic_symbol (info, h)
2770 struct bfd_link_info *info ATTRIBUTE_UNUSED;
2771 struct elf_link_hash_entry *h;
2772 {
2773 /* ??? Undefined symbols with PLT entries should be re-defined
2774 to be the PLT entry. */
2775
2776 /* If this is a weak symbol, and there is a real definition, the
2777 processor independent code will have arranged for us to see the
2778 real definition first, and we can just use the same value. */
2779 if (h->weakdef != NULL)
2780 {
2781 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
2782 || h->weakdef->root.type == bfd_link_hash_defweak);
2783 h->root.u.def.section = h->weakdef->root.u.def.section;
2784 h->root.u.def.value = h->weakdef->root.u.def.value;
2785 return TRUE;
2786 }
2787
2788 /* If this is a reference to a symbol defined by a dynamic object which
2789 is not a function, we might allocate the symbol in our .dynbss section
2790 and allocate a COPY dynamic relocation.
2791
2792 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
2793 of hackery. */
2794
2795 return TRUE;
2796 }
2797
2798 static bfd_boolean
2799 elfNN_ia64_size_dynamic_sections (output_bfd, info)
2800 bfd *output_bfd ATTRIBUTE_UNUSED;
2801 struct bfd_link_info *info;
2802 {
2803 struct elfNN_ia64_allocate_data data;
2804 struct elfNN_ia64_link_hash_table *ia64_info;
2805 asection *sec;
2806 bfd *dynobj;
2807 bfd_boolean relplt = FALSE;
2808
2809 dynobj = elf_hash_table(info)->dynobj;
2810 ia64_info = elfNN_ia64_hash_table (info);
2811 ia64_info->self_dtpmod_offset = (bfd_vma) -1;
2812 BFD_ASSERT(dynobj != NULL);
2813 data.info = info;
2814
2815 /* Set the contents of the .interp section to the interpreter. */
2816 if (ia64_info->root.dynamic_sections_created
2817 && info->executable)
2818 {
2819 sec = bfd_get_section_by_name (dynobj, ".interp");
2820 BFD_ASSERT (sec != NULL);
2821 sec->contents = (bfd_byte *) ELF_DYNAMIC_INTERPRETER;
2822 sec->_raw_size = strlen (ELF_DYNAMIC_INTERPRETER) + 1;
2823 }
2824
2825 /* Allocate the GOT entries. */
2826
2827 if (ia64_info->got_sec)
2828 {
2829 data.ofs = 0;
2830 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
2831 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
2832 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
2833 ia64_info->got_sec->_raw_size = data.ofs;
2834 }
2835
2836 /* Allocate the FPTR entries. */
2837
2838 if (ia64_info->fptr_sec)
2839 {
2840 data.ofs = 0;
2841 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_fptr, &data);
2842 ia64_info->fptr_sec->_raw_size = data.ofs;
2843 }
2844
2845 /* Now that we've seen all of the input files, we can decide which
2846 symbols need plt entries. Allocate the minimal PLT entries first.
2847 We do this even though dynamic_sections_created may be FALSE, because
2848 this has the side-effect of clearing want_plt and want_plt2. */
2849
2850 data.ofs = 0;
2851 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt_entries, &data);
2852
2853 ia64_info->minplt_entries = 0;
2854 if (data.ofs)
2855 {
2856 ia64_info->minplt_entries
2857 = (data.ofs - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
2858 }
2859
2860 /* Align the pointer for the plt2 entries. */
2861 data.ofs = (data.ofs + 31) & (bfd_vma) -32;
2862
2863 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt2_entries, &data);
2864 if (data.ofs != 0)
2865 {
2866 BFD_ASSERT (ia64_info->root.dynamic_sections_created);
2867
2868 ia64_info->plt_sec->_raw_size = data.ofs;
2869
2870 /* If we've got a .plt, we need some extra memory for the dynamic
2871 linker. We stuff these in .got.plt. */
2872 sec = bfd_get_section_by_name (dynobj, ".got.plt");
2873 sec->_raw_size = 8 * PLT_RESERVED_WORDS;
2874 }
2875
2876 /* Allocate the PLTOFF entries. */
2877
2878 if (ia64_info->pltoff_sec)
2879 {
2880 data.ofs = 0;
2881 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_pltoff_entries, &data);
2882 ia64_info->pltoff_sec->_raw_size = data.ofs;
2883 }
2884
2885 if (ia64_info->root.dynamic_sections_created)
2886 {
2887 /* Allocate space for the dynamic relocations that turned out to be
2888 required. */
2889
2890 if (info->shared && ia64_info->self_dtpmod_offset != (bfd_vma) -1)
2891 ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela);
2892 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries, &data);
2893 }
2894
2895 /* We have now determined the sizes of the various dynamic sections.
2896 Allocate memory for them. */
2897 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
2898 {
2899 bfd_boolean strip;
2900
2901 if (!(sec->flags & SEC_LINKER_CREATED))
2902 continue;
2903
2904 /* If we don't need this section, strip it from the output file.
2905 There were several sections primarily related to dynamic
2906 linking that must be create before the linker maps input
2907 sections to output sections. The linker does that before
2908 bfd_elf_size_dynamic_sections is called, and it is that
2909 function which decides whether anything needs to go into
2910 these sections. */
2911
2912 strip = (sec->_raw_size == 0);
2913
2914 if (sec == ia64_info->got_sec)
2915 strip = FALSE;
2916 else if (sec == ia64_info->rel_got_sec)
2917 {
2918 if (strip)
2919 ia64_info->rel_got_sec = NULL;
2920 else
2921 /* We use the reloc_count field as a counter if we need to
2922 copy relocs into the output file. */
2923 sec->reloc_count = 0;
2924 }
2925 else if (sec == ia64_info->fptr_sec)
2926 {
2927 if (strip)
2928 ia64_info->fptr_sec = NULL;
2929 }
2930 else if (sec == ia64_info->plt_sec)
2931 {
2932 if (strip)
2933 ia64_info->plt_sec = NULL;
2934 }
2935 else if (sec == ia64_info->pltoff_sec)
2936 {
2937 if (strip)
2938 ia64_info->pltoff_sec = NULL;
2939 }
2940 else if (sec == ia64_info->rel_pltoff_sec)
2941 {
2942 if (strip)
2943 ia64_info->rel_pltoff_sec = NULL;
2944 else
2945 {
2946 relplt = TRUE;
2947 /* We use the reloc_count field as a counter if we need to
2948 copy relocs into the output file. */
2949 sec->reloc_count = 0;
2950 }
2951 }
2952 else
2953 {
2954 const char *name;
2955
2956 /* It's OK to base decisions on the section name, because none
2957 of the dynobj section names depend upon the input files. */
2958 name = bfd_get_section_name (dynobj, sec);
2959
2960 if (strcmp (name, ".got.plt") == 0)
2961 strip = FALSE;
2962 else if (strncmp (name, ".rel", 4) == 0)
2963 {
2964 if (!strip)
2965 {
2966 /* We use the reloc_count field as a counter if we need to
2967 copy relocs into the output file. */
2968 sec->reloc_count = 0;
2969 }
2970 }
2971 else
2972 continue;
2973 }
2974
2975 if (strip)
2976 _bfd_strip_section_from_output (info, sec);
2977 else
2978 {
2979 /* Allocate memory for the section contents. */
2980 sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->_raw_size);
2981 if (sec->contents == NULL && sec->_raw_size != 0)
2982 return FALSE;
2983 }
2984 }
2985
2986 if (elf_hash_table (info)->dynamic_sections_created)
2987 {
2988 /* Add some entries to the .dynamic section. We fill in the values
2989 later (in finish_dynamic_sections) but we must add the entries now
2990 so that we get the correct size for the .dynamic section. */
2991
2992 if (info->executable)
2993 {
2994 /* The DT_DEBUG entry is filled in by the dynamic linker and used
2995 by the debugger. */
2996 #define add_dynamic_entry(TAG, VAL) \
2997 bfd_elfNN_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
2998
2999 if (!add_dynamic_entry (DT_DEBUG, 0))
3000 return FALSE;
3001 }
3002
3003 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE, 0))
3004 return FALSE;
3005 if (!add_dynamic_entry (DT_PLTGOT, 0))
3006 return FALSE;
3007
3008 if (relplt)
3009 {
3010 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
3011 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
3012 || !add_dynamic_entry (DT_JMPREL, 0))
3013 return FALSE;
3014 }
3015
3016 if (!add_dynamic_entry (DT_RELA, 0)
3017 || !add_dynamic_entry (DT_RELASZ, 0)
3018 || !add_dynamic_entry (DT_RELAENT, sizeof (ElfNN_External_Rela)))
3019 return FALSE;
3020
3021 if (ia64_info->reltext)
3022 {
3023 if (!add_dynamic_entry (DT_TEXTREL, 0))
3024 return FALSE;
3025 info->flags |= DF_TEXTREL;
3026 }
3027 }
3028
3029 /* ??? Perhaps force __gp local. */
3030
3031 return TRUE;
3032 }
3033
3034 static bfd_reloc_status_type
3035 elfNN_ia64_install_value (abfd, hit_addr, v, r_type)
3036 bfd *abfd;
3037 bfd_byte *hit_addr;
3038 bfd_vma v;
3039 unsigned int r_type;
3040 {
3041 const struct ia64_operand *op;
3042 int bigendian = 0, shift = 0;
3043 bfd_vma t0, t1, insn, dword;
3044 enum ia64_opnd opnd;
3045 const char *err;
3046 size_t size = 8;
3047 #ifdef BFD_HOST_U_64_BIT
3048 BFD_HOST_U_64_BIT val = (BFD_HOST_U_64_BIT) v;
3049 #else
3050 bfd_vma val = v;
3051 #endif
3052
3053 opnd = IA64_OPND_NIL;
3054 switch (r_type)
3055 {
3056 case R_IA64_NONE:
3057 case R_IA64_LDXMOV:
3058 return bfd_reloc_ok;
3059
3060 /* Instruction relocations. */
3061
3062 case R_IA64_IMM14:
3063 case R_IA64_TPREL14:
3064 case R_IA64_DTPREL14:
3065 opnd = IA64_OPND_IMM14;
3066 break;
3067
3068 case R_IA64_PCREL21F: opnd = IA64_OPND_TGT25; break;
3069 case R_IA64_PCREL21M: opnd = IA64_OPND_TGT25b; break;
3070 case R_IA64_PCREL60B: opnd = IA64_OPND_TGT64; break;
3071 case R_IA64_PCREL21B:
3072 case R_IA64_PCREL21BI:
3073 opnd = IA64_OPND_TGT25c;
3074 break;
3075
3076 case R_IA64_IMM22:
3077 case R_IA64_GPREL22:
3078 case R_IA64_LTOFF22:
3079 case R_IA64_LTOFF22X:
3080 case R_IA64_PLTOFF22:
3081 case R_IA64_PCREL22:
3082 case R_IA64_LTOFF_FPTR22:
3083 case R_IA64_TPREL22:
3084 case R_IA64_DTPREL22:
3085 case R_IA64_LTOFF_TPREL22:
3086 case R_IA64_LTOFF_DTPMOD22:
3087 case R_IA64_LTOFF_DTPREL22:
3088 opnd = IA64_OPND_IMM22;
3089 break;
3090
3091 case R_IA64_IMM64:
3092 case R_IA64_GPREL64I:
3093 case R_IA64_LTOFF64I:
3094 case R_IA64_PLTOFF64I:
3095 case R_IA64_PCREL64I:
3096 case R_IA64_FPTR64I:
3097 case R_IA64_LTOFF_FPTR64I:
3098 case R_IA64_TPREL64I:
3099 case R_IA64_DTPREL64I:
3100 opnd = IA64_OPND_IMMU64;
3101 break;
3102
3103 /* Data relocations. */
3104
3105 case R_IA64_DIR32MSB:
3106 case R_IA64_GPREL32MSB:
3107 case R_IA64_FPTR32MSB:
3108 case R_IA64_PCREL32MSB:
3109 case R_IA64_LTOFF_FPTR32MSB:
3110 case R_IA64_SEGREL32MSB:
3111 case R_IA64_SECREL32MSB:
3112 case R_IA64_LTV32MSB:
3113 case R_IA64_DTPREL32MSB:
3114 size = 4; bigendian = 1;
3115 break;
3116
3117 case R_IA64_DIR32LSB:
3118 case R_IA64_GPREL32LSB:
3119 case R_IA64_FPTR32LSB:
3120 case R_IA64_PCREL32LSB:
3121 case R_IA64_LTOFF_FPTR32LSB:
3122 case R_IA64_SEGREL32LSB:
3123 case R_IA64_SECREL32LSB:
3124 case R_IA64_LTV32LSB:
3125 case R_IA64_DTPREL32LSB:
3126 size = 4; bigendian = 0;
3127 break;
3128
3129 case R_IA64_DIR64MSB:
3130 case R_IA64_GPREL64MSB:
3131 case R_IA64_PLTOFF64MSB:
3132 case R_IA64_FPTR64MSB:
3133 case R_IA64_PCREL64MSB:
3134 case R_IA64_LTOFF_FPTR64MSB:
3135 case R_IA64_SEGREL64MSB:
3136 case R_IA64_SECREL64MSB:
3137 case R_IA64_LTV64MSB:
3138 case R_IA64_TPREL64MSB:
3139 case R_IA64_DTPMOD64MSB:
3140 case R_IA64_DTPREL64MSB:
3141 size = 8; bigendian = 1;
3142 break;
3143
3144 case R_IA64_DIR64LSB:
3145 case R_IA64_GPREL64LSB:
3146 case R_IA64_PLTOFF64LSB:
3147 case R_IA64_FPTR64LSB:
3148 case R_IA64_PCREL64LSB:
3149 case R_IA64_LTOFF_FPTR64LSB:
3150 case R_IA64_SEGREL64LSB:
3151 case R_IA64_SECREL64LSB:
3152 case R_IA64_LTV64LSB:
3153 case R_IA64_TPREL64LSB:
3154 case R_IA64_DTPMOD64LSB:
3155 case R_IA64_DTPREL64LSB:
3156 size = 8; bigendian = 0;
3157 break;
3158
3159 /* Unsupported / Dynamic relocations. */
3160 default:
3161 return bfd_reloc_notsupported;
3162 }
3163
3164 switch (opnd)
3165 {
3166 case IA64_OPND_IMMU64:
3167 hit_addr -= (long) hit_addr & 0x3;
3168 t0 = bfd_get_64 (abfd, hit_addr);
3169 t1 = bfd_get_64 (abfd, hit_addr + 8);
3170
3171 /* tmpl/s: bits 0.. 5 in t0
3172 slot 0: bits 5..45 in t0
3173 slot 1: bits 46..63 in t0, bits 0..22 in t1
3174 slot 2: bits 23..63 in t1 */
3175
3176 /* First, clear the bits that form the 64 bit constant. */
3177 t0 &= ~(0x3ffffLL << 46);
3178 t1 &= ~(0x7fffffLL
3179 | (( (0x07fLL << 13) | (0x1ffLL << 27)
3180 | (0x01fLL << 22) | (0x001LL << 21)
3181 | (0x001LL << 36)) << 23));
3182
3183 t0 |= ((val >> 22) & 0x03ffffLL) << 46; /* 18 lsbs of imm41 */
3184 t1 |= ((val >> 40) & 0x7fffffLL) << 0; /* 23 msbs of imm41 */
3185 t1 |= ( (((val >> 0) & 0x07f) << 13) /* imm7b */
3186 | (((val >> 7) & 0x1ff) << 27) /* imm9d */
3187 | (((val >> 16) & 0x01f) << 22) /* imm5c */
3188 | (((val >> 21) & 0x001) << 21) /* ic */
3189 | (((val >> 63) & 0x001) << 36)) << 23; /* i */
3190
3191 bfd_put_64 (abfd, t0, hit_addr);
3192 bfd_put_64 (abfd, t1, hit_addr + 8);
3193 break;
3194
3195 case IA64_OPND_TGT64:
3196 hit_addr -= (long) hit_addr & 0x3;
3197 t0 = bfd_get_64 (abfd, hit_addr);
3198 t1 = bfd_get_64 (abfd, hit_addr + 8);
3199
3200 /* tmpl/s: bits 0.. 5 in t0
3201 slot 0: bits 5..45 in t0
3202 slot 1: bits 46..63 in t0, bits 0..22 in t1
3203 slot 2: bits 23..63 in t1 */
3204
3205 /* First, clear the bits that form the 64 bit constant. */
3206 t0 &= ~(0x3ffffLL << 46);
3207 t1 &= ~(0x7fffffLL
3208 | ((1LL << 36 | 0xfffffLL << 13) << 23));
3209
3210 val >>= 4;
3211 t0 |= ((val >> 20) & 0xffffLL) << 2 << 46; /* 16 lsbs of imm39 */
3212 t1 |= ((val >> 36) & 0x7fffffLL) << 0; /* 23 msbs of imm39 */
3213 t1 |= ((((val >> 0) & 0xfffffLL) << 13) /* imm20b */
3214 | (((val >> 59) & 0x1LL) << 36)) << 23; /* i */
3215
3216 bfd_put_64 (abfd, t0, hit_addr);
3217 bfd_put_64 (abfd, t1, hit_addr + 8);
3218 break;
3219
3220 default:
3221 switch ((long) hit_addr & 0x3)
3222 {
3223 case 0: shift = 5; break;
3224 case 1: shift = 14; hit_addr += 3; break;
3225 case 2: shift = 23; hit_addr += 6; break;
3226 case 3: return bfd_reloc_notsupported; /* shouldn't happen... */
3227 }
3228 dword = bfd_get_64 (abfd, hit_addr);
3229 insn = (dword >> shift) & 0x1ffffffffffLL;
3230
3231 op = elf64_ia64_operands + opnd;
3232 err = (*op->insert) (op, val, (ia64_insn *)& insn);
3233 if (err)
3234 return bfd_reloc_overflow;
3235
3236 dword &= ~(0x1ffffffffffLL << shift);
3237 dword |= (insn << shift);
3238 bfd_put_64 (abfd, dword, hit_addr);
3239 break;
3240
3241 case IA64_OPND_NIL:
3242 /* A data relocation. */
3243 if (bigendian)
3244 if (size == 4)
3245 bfd_putb32 (val, hit_addr);
3246 else
3247 bfd_putb64 (val, hit_addr);
3248 else
3249 if (size == 4)
3250 bfd_putl32 (val, hit_addr);
3251 else
3252 bfd_putl64 (val, hit_addr);
3253 break;
3254 }
3255
3256 return bfd_reloc_ok;
3257 }
3258
3259 static void
3260 elfNN_ia64_install_dyn_reloc (abfd, info, sec, srel, offset, type,
3261 dynindx, addend)
3262 bfd *abfd;
3263 struct bfd_link_info *info;
3264 asection *sec;
3265 asection *srel;
3266 bfd_vma offset;
3267 unsigned int type;
3268 long dynindx;
3269 bfd_vma addend;
3270 {
3271 Elf_Internal_Rela outrel;
3272 bfd_byte *loc;
3273
3274 BFD_ASSERT (dynindx != -1);
3275 outrel.r_info = ELFNN_R_INFO (dynindx, type);
3276 outrel.r_addend = addend;
3277 outrel.r_offset = _bfd_elf_section_offset (abfd, info, sec, offset);
3278 if (outrel.r_offset >= (bfd_vma) -2)
3279 {
3280 /* Run for the hills. We shouldn't be outputting a relocation
3281 for this. So do what everyone else does and output a no-op. */
3282 outrel.r_info = ELFNN_R_INFO (0, R_IA64_NONE);
3283 outrel.r_addend = 0;
3284 outrel.r_offset = 0;
3285 }
3286 else
3287 outrel.r_offset += sec->output_section->vma + sec->output_offset;
3288
3289 loc = srel->contents;
3290 loc += srel->reloc_count++ * sizeof (ElfNN_External_Rela);
3291 bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
3292 BFD_ASSERT (sizeof (ElfNN_External_Rela) * srel->reloc_count
3293 <= srel->_cooked_size);
3294 }
3295
3296 /* Store an entry for target address TARGET_ADDR in the linkage table
3297 and return the gp-relative address of the linkage table entry. */
3298
3299 static bfd_vma
3300 set_got_entry (abfd, info, dyn_i, dynindx, addend, value, dyn_r_type)
3301 bfd *abfd;
3302 struct bfd_link_info *info;
3303 struct elfNN_ia64_dyn_sym_info *dyn_i;
3304 long dynindx;
3305 bfd_vma addend;
3306 bfd_vma value;
3307 unsigned int dyn_r_type;
3308 {
3309 struct elfNN_ia64_link_hash_table *ia64_info;
3310 asection *got_sec;
3311 bfd_boolean done;
3312 bfd_vma got_offset;
3313
3314 ia64_info = elfNN_ia64_hash_table (info);
3315 got_sec = ia64_info->got_sec;
3316
3317 switch (dyn_r_type)
3318 {
3319 case R_IA64_TPREL64LSB:
3320 done = dyn_i->tprel_done;
3321 dyn_i->tprel_done = TRUE;
3322 got_offset = dyn_i->tprel_offset;
3323 break;
3324 case R_IA64_DTPMOD64LSB:
3325 if (dyn_i->dtpmod_offset != ia64_info->self_dtpmod_offset)
3326 {
3327 done = dyn_i->dtpmod_done;
3328 dyn_i->dtpmod_done = TRUE;
3329 }
3330 else
3331 {
3332 done = ia64_info->self_dtpmod_done;
3333 ia64_info->self_dtpmod_done = TRUE;
3334 dynindx = 0;
3335 }
3336 got_offset = dyn_i->dtpmod_offset;
3337 break;
3338 case R_IA64_DTPREL64LSB:
3339 done = dyn_i->dtprel_done;
3340 dyn_i->dtprel_done = TRUE;
3341 got_offset = dyn_i->dtprel_offset;
3342 break;
3343 default:
3344 done = dyn_i->got_done;
3345 dyn_i->got_done = TRUE;
3346 got_offset = dyn_i->got_offset;
3347 break;
3348 }
3349
3350 BFD_ASSERT ((got_offset & 7) == 0);
3351
3352 if (! done)
3353 {
3354 /* Store the target address in the linkage table entry. */
3355 bfd_put_64 (abfd, value, got_sec->contents + got_offset);
3356
3357 /* Install a dynamic relocation if needed. */
3358 if (((info->shared
3359 && (!dyn_i->h
3360 || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
3361 || dyn_i->h->root.type != bfd_link_hash_undefweak)
3362 && dyn_r_type != R_IA64_DTPREL64LSB)
3363 || elfNN_ia64_dynamic_symbol_p (dyn_i->h, info, dyn_r_type)
3364 || (dynindx != -1 && dyn_r_type == R_IA64_FPTR64LSB))
3365 && (!dyn_i->want_ltoff_fptr
3366 || !info->pie
3367 || !dyn_i->h
3368 || dyn_i->h->root.type != bfd_link_hash_undefweak))
3369 {
3370 if (dynindx == -1
3371 && dyn_r_type != R_IA64_TPREL64LSB
3372 && dyn_r_type != R_IA64_DTPMOD64LSB
3373 && dyn_r_type != R_IA64_DTPREL64LSB)
3374 {
3375 dyn_r_type = R_IA64_REL64LSB;
3376 dynindx = 0;
3377 addend = value;
3378 }
3379
3380 if (bfd_big_endian (abfd))
3381 {
3382 switch (dyn_r_type)
3383 {
3384 case R_IA64_REL64LSB:
3385 dyn_r_type = R_IA64_REL64MSB;
3386 break;
3387 case R_IA64_DIR64LSB:
3388 dyn_r_type = R_IA64_DIR64MSB;
3389 break;
3390 case R_IA64_FPTR64LSB:
3391 dyn_r_type = R_IA64_FPTR64MSB;
3392 break;
3393 case R_IA64_TPREL64LSB:
3394 dyn_r_type = R_IA64_TPREL64MSB;
3395 break;
3396 case R_IA64_DTPMOD64LSB:
3397 dyn_r_type = R_IA64_DTPMOD64MSB;
3398 break;
3399 case R_IA64_DTPREL64LSB:
3400 dyn_r_type = R_IA64_DTPREL64MSB;
3401 break;
3402 default:
3403 BFD_ASSERT (FALSE);
3404 break;
3405 }
3406 }
3407
3408 elfNN_ia64_install_dyn_reloc (abfd, NULL, got_sec,
3409 ia64_info->rel_got_sec,
3410 got_offset, dyn_r_type,
3411 dynindx, addend);
3412 }
3413 }
3414
3415 /* Return the address of the linkage table entry. */
3416 value = (got_sec->output_section->vma
3417 + got_sec->output_offset
3418 + got_offset);
3419
3420 return value;
3421 }
3422
3423 /* Fill in a function descriptor consisting of the function's code
3424 address and its global pointer. Return the descriptor's address. */
3425
3426 static bfd_vma
3427 set_fptr_entry (abfd, info, dyn_i, value)
3428 bfd *abfd;
3429 struct bfd_link_info *info;
3430 struct elfNN_ia64_dyn_sym_info *dyn_i;
3431 bfd_vma value;
3432 {
3433 struct elfNN_ia64_link_hash_table *ia64_info;
3434 asection *fptr_sec;
3435
3436 ia64_info = elfNN_ia64_hash_table (info);
3437 fptr_sec = ia64_info->fptr_sec;
3438
3439 if (!dyn_i->fptr_done)
3440 {
3441 dyn_i->fptr_done = 1;
3442
3443 /* Fill in the function descriptor. */
3444 bfd_put_64 (abfd, value, fptr_sec->contents + dyn_i->fptr_offset);
3445 bfd_put_64 (abfd, _bfd_get_gp_value (abfd),
3446 fptr_sec->contents + dyn_i->fptr_offset + 8);
3447 if (ia64_info->rel_fptr_sec)
3448 {
3449 Elf_Internal_Rela outrel;
3450 bfd_byte *loc;
3451
3452 if (bfd_little_endian (abfd))
3453 outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTLSB);
3454 else
3455 outrel.r_info = ELFNN_R_INFO (0, R_IA64_IPLTMSB);
3456 outrel.r_addend = value;
3457 outrel.r_offset = (fptr_sec->output_section->vma
3458 + fptr_sec->output_offset
3459 + dyn_i->fptr_offset);
3460 loc = ia64_info->rel_fptr_sec->contents;
3461 loc += ia64_info->rel_fptr_sec->reloc_count++
3462 * sizeof (ElfNN_External_Rela);
3463 bfd_elfNN_swap_reloca_out (abfd, &outrel, loc);
3464 }
3465 }
3466
3467 /* Return the descriptor's address. */
3468 value = (fptr_sec->output_section->vma
3469 + fptr_sec->output_offset
3470 + dyn_i->fptr_offset);
3471
3472 return value;
3473 }
3474
3475 /* Fill in a PLTOFF entry consisting of the function's code address
3476 and its global pointer. Return the descriptor's address. */
3477
3478 static bfd_vma
3479 set_pltoff_entry (abfd, info, dyn_i, value, is_plt)
3480 bfd *abfd;
3481 struct bfd_link_info *info;
3482 struct elfNN_ia64_dyn_sym_info *dyn_i;
3483 bfd_vma value;
3484 bfd_boolean is_plt;
3485 {
3486 struct elfNN_ia64_link_hash_table *ia64_info;
3487 asection *pltoff_sec;
3488
3489 ia64_info = elfNN_ia64_hash_table (info);
3490 pltoff_sec = ia64_info->pltoff_sec;
3491
3492 /* Don't do anything if this symbol uses a real PLT entry. In
3493 that case, we'll fill this in during finish_dynamic_symbol. */
3494 if ((! dyn_i->want_plt || is_plt)
3495 && !dyn_i->pltoff_done)
3496 {
3497 bfd_vma gp = _bfd_get_gp_value (abfd);
3498
3499 /* Fill in the function descriptor. */
3500 bfd_put_64 (abfd, value, pltoff_sec->contents + dyn_i->pltoff_offset);
3501 bfd_put_64 (abfd, gp, pltoff_sec->contents + dyn_i->pltoff_offset + 8);
3502
3503 /* Install dynamic relocations if needed. */
3504 if (!is_plt
3505 && info->shared
3506 && (!dyn_i->h
3507 || ELF_ST_VISIBILITY (dyn_i->h->other) == STV_DEFAULT
3508 || dyn_i->h->root.type != bfd_link_hash_undefweak))
3509 {
3510 unsigned int dyn_r_type;
3511
3512 if (bfd_big_endian (abfd))
3513 dyn_r_type = R_IA64_REL64MSB;
3514 else
3515 dyn_r_type = R_IA64_REL64LSB;
3516
3517 elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
3518 ia64_info->rel_pltoff_sec,
3519 dyn_i->pltoff_offset,
3520 dyn_r_type, 0, value);
3521 elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
3522 ia64_info->rel_pltoff_sec,
3523 dyn_i->pltoff_offset + 8,
3524 dyn_r_type, 0, gp);
3525 }
3526
3527 dyn_i->pltoff_done = 1;
3528 }
3529
3530 /* Return the descriptor's address. */
3531 value = (pltoff_sec->output_section->vma
3532 + pltoff_sec->output_offset
3533 + dyn_i->pltoff_offset);
3534
3535 return value;
3536 }
3537
3538 /* Return the base VMA address which should be subtracted from real addresses
3539 when resolving @tprel() relocation.
3540 Main program TLS (whose template starts at PT_TLS p_vaddr)
3541 is assigned offset round(16, PT_TLS p_align). */
3542
3543 static bfd_vma
3544 elfNN_ia64_tprel_base (info)
3545 struct bfd_link_info *info;
3546 {
3547 struct elf_link_tls_segment *tls_segment
3548 = elf_hash_table (info)->tls_segment;
3549
3550 BFD_ASSERT (tls_segment != NULL);
3551 return (tls_segment->start
3552 - align_power ((bfd_vma) 16, tls_segment->align));
3553 }
3554
3555 /* Return the base VMA address which should be subtracted from real addresses
3556 when resolving @dtprel() relocation.
3557 This is PT_TLS segment p_vaddr. */
3558
3559 static bfd_vma
3560 elfNN_ia64_dtprel_base (info)
3561 struct bfd_link_info *info;
3562 {
3563 BFD_ASSERT (elf_hash_table (info)->tls_segment != NULL);
3564 return elf_hash_table (info)->tls_segment->start;
3565 }
3566
3567 /* Called through qsort to sort the .IA_64.unwind section during a
3568 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3569 to the output bfd so we can do proper endianness frobbing. */
3570
3571 static bfd *elfNN_ia64_unwind_entry_compare_bfd;
3572
3573 static int
3574 elfNN_ia64_unwind_entry_compare (a, b)
3575 const PTR a;
3576 const PTR b;
3577 {
3578 bfd_vma av, bv;
3579
3580 av = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, a);
3581 bv = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, b);
3582
3583 return (av < bv ? -1 : av > bv ? 1 : 0);
3584 }
3585
3586 /* Make sure we've got ourselves a nice fat __gp value. */
3587 static bfd_boolean
3588 elfNN_ia64_choose_gp (abfd, info)
3589 bfd *abfd;
3590 struct bfd_link_info *info;
3591 {
3592 bfd_vma min_vma = (bfd_vma) -1, max_vma = 0;
3593 bfd_vma min_short_vma = min_vma, max_short_vma = 0;
3594 struct elf_link_hash_entry *gp;
3595 bfd_vma gp_val;
3596 asection *os;
3597 struct elfNN_ia64_link_hash_table *ia64_info;
3598
3599 ia64_info = elfNN_ia64_hash_table (info);
3600
3601 /* Find the min and max vma of all sections marked short. Also collect
3602 min and max vma of any type, for use in selecting a nice gp. */
3603 for (os = abfd->sections; os ; os = os->next)
3604 {
3605 bfd_vma lo, hi;
3606
3607 if ((os->flags & SEC_ALLOC) == 0)
3608 continue;
3609
3610 lo = os->vma;
3611 hi = os->vma + os->_raw_size;
3612 if (hi < lo)
3613 hi = (bfd_vma) -1;
3614
3615 if (min_vma > lo)
3616 min_vma = lo;
3617 if (max_vma < hi)
3618 max_vma = hi;
3619 if (os->flags & SEC_SMALL_DATA)
3620 {
3621 if (min_short_vma > lo)
3622 min_short_vma = lo;
3623 if (max_short_vma < hi)
3624 max_short_vma = hi;
3625 }
3626 }
3627
3628 /* See if the user wants to force a value. */
3629 gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
3630 FALSE, FALSE);
3631
3632 if (gp
3633 && (gp->root.type == bfd_link_hash_defined
3634 || gp->root.type == bfd_link_hash_defweak))
3635 {
3636 asection *gp_sec = gp->root.u.def.section;
3637 gp_val = (gp->root.u.def.value
3638 + gp_sec->output_section->vma
3639 + gp_sec->output_offset);
3640 }
3641 else
3642 {
3643 /* Pick a sensible value. */
3644
3645 asection *got_sec = ia64_info->got_sec;
3646
3647 /* Start with just the address of the .got. */
3648 if (got_sec)
3649 gp_val = got_sec->output_section->vma;
3650 else if (max_short_vma != 0)
3651 gp_val = min_short_vma;
3652 else
3653 gp_val = min_vma;
3654
3655 /* If it is possible to address the entire image, but we
3656 don't with the choice above, adjust. */
3657 if (max_vma - min_vma < 0x400000
3658 && max_vma - gp_val <= 0x200000
3659 && gp_val - min_vma > 0x200000)
3660 gp_val = min_vma + 0x200000;
3661 else if (max_short_vma != 0)
3662 {
3663 /* If we don't cover all the short data, adjust. */
3664 if (max_short_vma - gp_val >= 0x200000)
3665 gp_val = min_short_vma + 0x200000;
3666
3667 /* If we're addressing stuff past the end, adjust back. */
3668 if (gp_val > max_vma)
3669 gp_val = max_vma - 0x200000 + 8;
3670 }
3671 }
3672
3673 /* Validate whether all SHF_IA_64_SHORT sections are within
3674 range of the chosen GP. */
3675
3676 if (max_short_vma != 0)
3677 {
3678 if (max_short_vma - min_short_vma >= 0x400000)
3679 {
3680 (*_bfd_error_handler)
3681 (_("%s: short data segment overflowed (0x%lx >= 0x400000)"),
3682 bfd_get_filename (abfd),
3683 (unsigned long) (max_short_vma - min_short_vma));
3684 return FALSE;
3685 }
3686 else if ((gp_val > min_short_vma
3687 && gp_val - min_short_vma > 0x200000)
3688 || (gp_val < max_short_vma
3689 && max_short_vma - gp_val >= 0x200000))
3690 {
3691 (*_bfd_error_handler)
3692 (_("%s: __gp does not cover short data segment"),
3693 bfd_get_filename (abfd));
3694 return FALSE;
3695 }
3696 }
3697
3698 _bfd_set_gp_value (abfd, gp_val);
3699
3700 return TRUE;
3701 }
3702
3703 static bfd_boolean
3704 elfNN_ia64_final_link (abfd, info)
3705 bfd *abfd;
3706 struct bfd_link_info *info;
3707 {
3708 struct elfNN_ia64_link_hash_table *ia64_info;
3709 asection *unwind_output_sec;
3710
3711 ia64_info = elfNN_ia64_hash_table (info);
3712
3713 /* Make sure we've got ourselves a nice fat __gp value. */
3714 if (!info->relocatable)
3715 {
3716 bfd_vma gp_val = _bfd_get_gp_value (abfd);
3717 struct elf_link_hash_entry *gp;
3718
3719 if (gp_val == 0)
3720 {
3721 if (! elfNN_ia64_choose_gp (abfd, info))
3722 return FALSE;
3723 gp_val = _bfd_get_gp_value (abfd);
3724 }
3725
3726 gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", FALSE,
3727 FALSE, FALSE);
3728 if (gp)
3729 {
3730 gp->root.type = bfd_link_hash_defined;
3731 gp->root.u.def.value = gp_val;
3732 gp->root.u.def.section = bfd_abs_section_ptr;
3733 }
3734 }
3735
3736 /* If we're producing a final executable, we need to sort the contents
3737 of the .IA_64.unwind section. Force this section to be relocated
3738 into memory rather than written immediately to the output file. */
3739 unwind_output_sec = NULL;
3740 if (!info->relocatable)
3741 {
3742 asection *s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind);
3743 if (s)
3744 {
3745 unwind_output_sec = s->output_section;
3746 unwind_output_sec->contents
3747 = bfd_malloc (unwind_output_sec->_raw_size);
3748 if (unwind_output_sec->contents == NULL)
3749 return FALSE;
3750 }
3751 }
3752
3753 /* Invoke the regular ELF backend linker to do all the work. */
3754 if (!bfd_elfNN_bfd_final_link (abfd, info))
3755 return FALSE;
3756
3757 if (unwind_output_sec)
3758 {
3759 elfNN_ia64_unwind_entry_compare_bfd = abfd;
3760 qsort (unwind_output_sec->contents,
3761 (size_t) (unwind_output_sec->_raw_size / 24),
3762 24,
3763 elfNN_ia64_unwind_entry_compare);
3764
3765 if (! bfd_set_section_contents (abfd, unwind_output_sec,
3766 unwind_output_sec->contents, (bfd_vma) 0,
3767 unwind_output_sec->_raw_size))
3768 return FALSE;
3769 }
3770
3771 return TRUE;
3772 }
3773
3774 static bfd_boolean
3775 elfNN_ia64_relocate_section (output_bfd, info, input_bfd, input_section,
3776 contents, relocs, local_syms, local_sections)
3777 bfd *output_bfd;
3778 struct bfd_link_info *info;
3779 bfd *input_bfd;
3780 asection *input_section;
3781 bfd_byte *contents;
3782 Elf_Internal_Rela *relocs;
3783 Elf_Internal_Sym *local_syms;
3784 asection **local_sections;
3785 {
3786 struct elfNN_ia64_link_hash_table *ia64_info;
3787 Elf_Internal_Shdr *symtab_hdr;
3788 Elf_Internal_Rela *rel;
3789 Elf_Internal_Rela *relend;
3790 asection *srel;
3791 bfd_boolean ret_val = TRUE; /* for non-fatal errors */
3792 bfd_vma gp_val;
3793
3794 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
3795 ia64_info = elfNN_ia64_hash_table (info);
3796
3797 /* Infect various flags from the input section to the output section. */
3798 if (info->relocatable)
3799 {
3800 bfd_vma flags;
3801
3802 flags = elf_section_data(input_section)->this_hdr.sh_flags;
3803 flags &= SHF_IA_64_NORECOV;
3804
3805 elf_section_data(input_section->output_section)
3806 ->this_hdr.sh_flags |= flags;
3807 return TRUE;
3808 }
3809
3810 gp_val = _bfd_get_gp_value (output_bfd);
3811 srel = get_reloc_section (input_bfd, ia64_info, input_section, FALSE);
3812
3813 rel = relocs;
3814 relend = relocs + input_section->reloc_count;
3815 for (; rel < relend; ++rel)
3816 {
3817 struct elf_link_hash_entry *h;
3818 struct elfNN_ia64_dyn_sym_info *dyn_i;
3819 bfd_reloc_status_type r;
3820 reloc_howto_type *howto;
3821 unsigned long r_symndx;
3822 Elf_Internal_Sym *sym;
3823 unsigned int r_type;
3824 bfd_vma value;
3825 asection *sym_sec;
3826 bfd_byte *hit_addr;
3827 bfd_boolean dynamic_symbol_p;
3828 bfd_boolean undef_weak_ref;
3829
3830 r_type = ELFNN_R_TYPE (rel->r_info);
3831 if (r_type > R_IA64_MAX_RELOC_CODE)
3832 {
3833 (*_bfd_error_handler)
3834 (_("%s: unknown relocation type %d"),
3835 bfd_archive_filename (input_bfd), (int)r_type);
3836 bfd_set_error (bfd_error_bad_value);
3837 ret_val = FALSE;
3838 continue;
3839 }
3840
3841 howto = lookup_howto (r_type);
3842 r_symndx = ELFNN_R_SYM (rel->r_info);
3843 h = NULL;
3844 sym = NULL;
3845 sym_sec = NULL;
3846 undef_weak_ref = FALSE;
3847
3848 if (r_symndx < symtab_hdr->sh_info)
3849 {
3850 /* Reloc against local symbol. */
3851 sym = local_syms + r_symndx;
3852 sym_sec = local_sections[r_symndx];
3853 value = _bfd_elf_rela_local_sym (output_bfd, sym, sym_sec, rel);
3854 if ((sym_sec->flags & SEC_MERGE)
3855 && ELF_ST_TYPE (sym->st_info) == STT_SECTION
3856 && sym_sec->sec_info_type == ELF_INFO_TYPE_MERGE)
3857 {
3858 struct elfNN_ia64_local_hash_entry *loc_h;
3859
3860 loc_h = get_local_sym_hash (ia64_info, input_bfd, rel, FALSE);
3861 if (loc_h && ! loc_h->sec_merge_done)
3862 {
3863 struct elfNN_ia64_dyn_sym_info *dynent;
3864 asection *msec;
3865
3866 for (dynent = loc_h->info; dynent; dynent = dynent->next)
3867 {
3868 msec = sym_sec;
3869 dynent->addend =
3870 _bfd_merged_section_offset (output_bfd, &msec,
3871 elf_section_data (msec)->
3872 sec_info,
3873 sym->st_value
3874 + dynent->addend,
3875 (bfd_vma) 0);
3876 dynent->addend -= sym->st_value;
3877 dynent->addend += msec->output_section->vma
3878 + msec->output_offset
3879 - sym_sec->output_section->vma
3880 - sym_sec->output_offset;
3881 }
3882 loc_h->sec_merge_done = 1;
3883 }
3884 }
3885 }
3886 else
3887 {
3888 bfd_boolean unresolved_reloc;
3889 bfd_boolean warned;
3890
3891 RELOC_FOR_GLOBAL_SYMBOL (h, elf_sym_hashes (input_bfd),
3892 r_symndx,
3893 symtab_hdr, value, sym_sec,
3894 unresolved_reloc, info,
3895 warned);
3896
3897 if (h->root.type == bfd_link_hash_undefweak)
3898 undef_weak_ref = TRUE;
3899 else if (warned)
3900 continue;
3901 }
3902
3903 hit_addr = contents + rel->r_offset;
3904 value += rel->r_addend;
3905 dynamic_symbol_p = elfNN_ia64_dynamic_symbol_p (h, info, r_type);
3906
3907 switch (r_type)
3908 {
3909 case R_IA64_NONE:
3910 case R_IA64_LDXMOV:
3911 continue;
3912
3913 case R_IA64_IMM14:
3914 case R_IA64_IMM22:
3915 case R_IA64_IMM64:
3916 case R_IA64_DIR32MSB:
3917 case R_IA64_DIR32LSB:
3918 case R_IA64_DIR64MSB:
3919 case R_IA64_DIR64LSB:
3920 /* Install a dynamic relocation for this reloc. */
3921 if ((dynamic_symbol_p || info->shared)
3922 && r_symndx != 0
3923 && (input_section->flags & SEC_ALLOC) != 0)
3924 {
3925 unsigned int dyn_r_type;
3926 long dynindx;
3927 bfd_vma addend;
3928
3929 BFD_ASSERT (srel != NULL);
3930
3931 /* If we don't need dynamic symbol lookup, find a
3932 matching RELATIVE relocation. */
3933 dyn_r_type = r_type;
3934 if (dynamic_symbol_p)
3935 {
3936 dynindx = h->dynindx;
3937 addend = rel->r_addend;
3938 value = 0;
3939 }
3940 else
3941 {
3942 switch (r_type)
3943 {
3944 case R_IA64_DIR32MSB:
3945 dyn_r_type = R_IA64_REL32MSB;
3946 break;
3947 case R_IA64_DIR32LSB:
3948 dyn_r_type = R_IA64_REL32LSB;
3949 break;
3950 case R_IA64_DIR64MSB:
3951 dyn_r_type = R_IA64_REL64MSB;
3952 break;
3953 case R_IA64_DIR64LSB:
3954 dyn_r_type = R_IA64_REL64LSB;
3955 break;
3956
3957 default:
3958 /* We can't represent this without a dynamic symbol.
3959 Adjust the relocation to be against an output
3960 section symbol, which are always present in the
3961 dynamic symbol table. */
3962 /* ??? People shouldn't be doing non-pic code in
3963 shared libraries. Hork. */
3964 (*_bfd_error_handler)
3965 (_("%s: linking non-pic code in a shared library"),
3966 bfd_archive_filename (input_bfd));
3967 ret_val = FALSE;
3968 continue;
3969 }
3970 dynindx = 0;
3971 addend = value;
3972 }
3973
3974 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
3975 srel, rel->r_offset, dyn_r_type,
3976 dynindx, addend);
3977 }
3978 /* Fall through. */
3979
3980 case R_IA64_LTV32MSB:
3981 case R_IA64_LTV32LSB:
3982 case R_IA64_LTV64MSB:
3983 case R_IA64_LTV64LSB:
3984 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
3985 break;
3986
3987 case R_IA64_GPREL22:
3988 case R_IA64_GPREL64I:
3989 case R_IA64_GPREL32MSB:
3990 case R_IA64_GPREL32LSB:
3991 case R_IA64_GPREL64MSB:
3992 case R_IA64_GPREL64LSB:
3993 if (dynamic_symbol_p)
3994 {
3995 (*_bfd_error_handler)
3996 (_("%s: @gprel relocation against dynamic symbol %s"),
3997 bfd_archive_filename (input_bfd), h->root.root.string);
3998 ret_val = FALSE;
3999 continue;
4000 }
4001 value -= gp_val;
4002 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
4003 break;
4004
4005 case R_IA64_LTOFF22:
4006 case R_IA64_LTOFF22X:
4007 case R_IA64_LTOFF64I:
4008 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4009 value = set_got_entry (input_bfd, info, dyn_i, (h ? h->dynindx : -1),
4010 rel->r_addend, value, R_IA64_DIR64LSB);
4011 value -= gp_val;
4012 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
4013 break;
4014
4015 case R_IA64_PLTOFF22:
4016 case R_IA64_PLTOFF64I:
4017 case R_IA64_PLTOFF64MSB:
4018 case R_IA64_PLTOFF64LSB:
4019 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4020 value = set_pltoff_entry (output_bfd, info, dyn_i, value, FALSE);
4021 value -= gp_val;
4022 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
4023 break;
4024
4025 case R_IA64_FPTR64I:
4026 case R_IA64_FPTR32MSB:
4027 case R_IA64_FPTR32LSB:
4028 case R_IA64_FPTR64MSB:
4029 case R_IA64_FPTR64LSB:
4030 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4031 if (dyn_i->want_fptr)
4032 {
4033 if (!undef_weak_ref)
4034 value = set_fptr_entry (output_bfd, info, dyn_i, value);
4035 }
4036 if (!dyn_i->want_fptr || info->pie)
4037 {
4038 long dynindx;
4039 unsigned int dyn_r_type = r_type;
4040 bfd_vma addend = rel->r_addend;
4041
4042 /* Otherwise, we expect the dynamic linker to create
4043 the entry. */
4044
4045 if (dyn_i->want_fptr)
4046 {
4047 if (r_type == R_IA64_FPTR64I)
4048 {
4049 /* We can't represent this without a dynamic symbol.
4050 Adjust the relocation to be against an output
4051 section symbol, which are always present in the
4052 dynamic symbol table. */
4053 /* ??? People shouldn't be doing non-pic code in
4054 shared libraries. Hork. */
4055 (*_bfd_error_handler)
4056 (_("%s: linking non-pic code in a position independent executable"),
4057 bfd_archive_filename (input_bfd));
4058 ret_val = FALSE;
4059 continue;
4060 }
4061 dynindx = 0;
4062 addend = value;
4063 dyn_r_type = r_type + R_IA64_REL64LSB - R_IA64_FPTR64LSB;
4064 }
4065 else if (h)
4066 {
4067 if (h->dynindx != -1)
4068 dynindx = h->dynindx;
4069 else
4070 dynindx = (_bfd_elf_link_lookup_local_dynindx
4071 (info, h->root.u.def.section->owner,
4072 global_sym_index (h)));
4073 value = 0;
4074 }
4075 else
4076 {
4077 dynindx = (_bfd_elf_link_lookup_local_dynindx
4078 (info, input_bfd, (long) r_symndx));
4079 value = 0;
4080 }
4081
4082 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4083 srel, rel->r_offset, dyn_r_type,
4084 dynindx, addend);
4085 }
4086
4087 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
4088 break;
4089
4090 case R_IA64_LTOFF_FPTR22:
4091 case R_IA64_LTOFF_FPTR64I:
4092 case R_IA64_LTOFF_FPTR32MSB:
4093 case R_IA64_LTOFF_FPTR32LSB:
4094 case R_IA64_LTOFF_FPTR64MSB:
4095 case R_IA64_LTOFF_FPTR64LSB:
4096 {
4097 long dynindx;
4098
4099 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4100 if (dyn_i->want_fptr)
4101 {
4102 BFD_ASSERT (h == NULL || h->dynindx == -1)
4103 if (!undef_weak_ref)
4104 value = set_fptr_entry (output_bfd, info, dyn_i, value);
4105 dynindx = -1;
4106 }
4107 else
4108 {
4109 /* Otherwise, we expect the dynamic linker to create
4110 the entry. */
4111 if (h)
4112 {
4113 if (h->dynindx != -1)
4114 dynindx = h->dynindx;
4115 else
4116 dynindx = (_bfd_elf_link_lookup_local_dynindx
4117 (info, h->root.u.def.section->owner,
4118 global_sym_index (h)));
4119 }
4120 else
4121 dynindx = (_bfd_elf_link_lookup_local_dynindx
4122 (info, input_bfd, (long) r_symndx));
4123 value = 0;
4124 }
4125
4126 value = set_got_entry (output_bfd, info, dyn_i, dynindx,
4127 rel->r_addend, value, R_IA64_FPTR64LSB);
4128 value -= gp_val;
4129 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
4130 }
4131 break;
4132
4133 case R_IA64_PCREL32MSB:
4134 case R_IA64_PCREL32LSB:
4135 case R_IA64_PCREL64MSB:
4136 case R_IA64_PCREL64LSB:
4137 /* Install a dynamic relocation for this reloc. */
4138 if (dynamic_symbol_p && r_symndx != 0)
4139 {
4140 BFD_ASSERT (srel != NULL);
4141
4142 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4143 srel, rel->r_offset, r_type,
4144 h->dynindx, rel->r_addend);
4145 }
4146 goto finish_pcrel;
4147
4148 case R_IA64_PCREL21B:
4149 case R_IA64_PCREL60B:
4150 /* We should have created a PLT entry for any dynamic symbol. */
4151 dyn_i = NULL;
4152 if (h)
4153 dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
4154
4155 if (dyn_i && dyn_i->want_plt2)
4156 {
4157 /* Should have caught this earlier. */
4158 BFD_ASSERT (rel->r_addend == 0);
4159
4160 value = (ia64_info->plt_sec->output_section->vma
4161 + ia64_info->plt_sec->output_offset
4162 + dyn_i->plt2_offset);
4163 }
4164 else
4165 {
4166 /* Since there's no PLT entry, Validate that this is
4167 locally defined. */
4168 BFD_ASSERT (undef_weak_ref || sym_sec->output_section != NULL);
4169
4170 /* If the symbol is undef_weak, we shouldn't be trying
4171 to call it. There's every chance that we'd wind up
4172 with an out-of-range fixup here. Don't bother setting
4173 any value at all. */
4174 if (undef_weak_ref)
4175 continue;
4176 }
4177 goto finish_pcrel;
4178
4179 case R_IA64_PCREL21BI:
4180 case R_IA64_PCREL21F:
4181 case R_IA64_PCREL21M:
4182 case R_IA64_PCREL22:
4183 case R_IA64_PCREL64I:
4184 /* The PCREL21BI reloc is specifically not intended for use with
4185 dynamic relocs. PCREL21F and PCREL21M are used for speculation
4186 fixup code, and thus probably ought not be dynamic. The
4187 PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4188 if (dynamic_symbol_p)
4189 {
4190 const char *msg;
4191
4192 if (r_type == R_IA64_PCREL21BI)
4193 msg = _("%s: @internal branch to dynamic symbol %s");
4194 else if (r_type == R_IA64_PCREL21F || r_type == R_IA64_PCREL21M)
4195 msg = _("%s: speculation fixup to dynamic symbol %s");
4196 else
4197 msg = _("%s: @pcrel relocation against dynamic symbol %s");
4198 (*_bfd_error_handler) (msg, bfd_archive_filename (input_bfd),
4199 h->root.root.string);
4200 ret_val = FALSE;
4201 continue;
4202 }
4203 goto finish_pcrel;
4204
4205 finish_pcrel:
4206 /* Make pc-relative. */
4207 value -= (input_section->output_section->vma
4208 + input_section->output_offset
4209 + rel->r_offset) & ~ (bfd_vma) 0x3;
4210 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
4211 break;
4212
4213 case R_IA64_SEGREL32MSB:
4214 case R_IA64_SEGREL32LSB:
4215 case R_IA64_SEGREL64MSB:
4216 case R_IA64_SEGREL64LSB:
4217 if (r_symndx == 0)
4218 {
4219 /* If the input section was discarded from the output, then
4220 do nothing. */
4221 r = bfd_reloc_ok;
4222 }
4223 else
4224 {
4225 struct elf_segment_map *m;
4226 Elf_Internal_Phdr *p;
4227
4228 /* Find the segment that contains the output_section. */
4229 for (m = elf_tdata (output_bfd)->segment_map,
4230 p = elf_tdata (output_bfd)->phdr;
4231 m != NULL;
4232 m = m->next, p++)
4233 {
4234 int i;
4235 for (i = m->count - 1; i >= 0; i--)
4236 if (m->sections[i] == input_section->output_section)
4237 break;
4238 if (i >= 0)
4239 break;
4240 }
4241
4242 if (m == NULL)
4243 {
4244 r = bfd_reloc_notsupported;
4245 }
4246 else
4247 {
4248 /* The VMA of the segment is the vaddr of the associated
4249 program header. */
4250 if (value > p->p_vaddr)
4251 value -= p->p_vaddr;
4252 else
4253 value = 0;
4254 r = elfNN_ia64_install_value (output_bfd, hit_addr, value,
4255 r_type);
4256 }
4257 break;
4258 }
4259
4260 case R_IA64_SECREL32MSB:
4261 case R_IA64_SECREL32LSB:
4262 case R_IA64_SECREL64MSB:
4263 case R_IA64_SECREL64LSB:
4264 /* Make output-section relative. */
4265 if (value > input_section->output_section->vma)
4266 value -= input_section->output_section->vma;
4267 else
4268 value = 0;
4269 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
4270 break;
4271
4272 case R_IA64_IPLTMSB:
4273 case R_IA64_IPLTLSB:
4274 /* Install a dynamic relocation for this reloc. */
4275 if ((dynamic_symbol_p || info->shared)
4276 && (input_section->flags & SEC_ALLOC) != 0)
4277 {
4278 BFD_ASSERT (srel != NULL);
4279
4280 /* If we don't need dynamic symbol lookup, install two
4281 RELATIVE relocations. */
4282 if (!dynamic_symbol_p)
4283 {
4284 unsigned int dyn_r_type;
4285
4286 if (r_type == R_IA64_IPLTMSB)
4287 dyn_r_type = R_IA64_REL64MSB;
4288 else
4289 dyn_r_type = R_IA64_REL64LSB;
4290
4291 elfNN_ia64_install_dyn_reloc (output_bfd, info,
4292 input_section,
4293 srel, rel->r_offset,
4294 dyn_r_type, 0, value);
4295 elfNN_ia64_install_dyn_reloc (output_bfd, info,
4296 input_section,
4297 srel, rel->r_offset + 8,
4298 dyn_r_type, 0, gp_val);
4299 }
4300 else
4301 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4302 srel, rel->r_offset, r_type,
4303 h->dynindx, rel->r_addend);
4304 }
4305
4306 if (r_type == R_IA64_IPLTMSB)
4307 r_type = R_IA64_DIR64MSB;
4308 else
4309 r_type = R_IA64_DIR64LSB;
4310 elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
4311 r = elfNN_ia64_install_value (output_bfd, hit_addr + 8, gp_val,
4312 r_type);
4313 break;
4314
4315 case R_IA64_TPREL14:
4316 case R_IA64_TPREL22:
4317 case R_IA64_TPREL64I:
4318 value -= elfNN_ia64_tprel_base (info);
4319 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
4320 break;
4321
4322 case R_IA64_DTPREL14:
4323 case R_IA64_DTPREL22:
4324 case R_IA64_DTPREL64I:
4325 case R_IA64_DTPREL64LSB:
4326 case R_IA64_DTPREL64MSB:
4327 value -= elfNN_ia64_dtprel_base (info);
4328 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
4329 break;
4330
4331 case R_IA64_LTOFF_TPREL22:
4332 case R_IA64_LTOFF_DTPMOD22:
4333 case R_IA64_LTOFF_DTPREL22:
4334 {
4335 int got_r_type;
4336 long dynindx = h ? h->dynindx : -1;
4337 bfd_vma r_addend = rel->r_addend;
4338
4339 switch (r_type)
4340 {
4341 default:
4342 case R_IA64_LTOFF_TPREL22:
4343 if (!dynamic_symbol_p)
4344 {
4345 if (!info->shared)
4346 value -= elfNN_ia64_tprel_base (info);
4347 else
4348 {
4349 r_addend += value - elfNN_ia64_dtprel_base (info);
4350 dynindx = 0;
4351 }
4352 }
4353 got_r_type = R_IA64_TPREL64LSB;
4354 break;
4355 case R_IA64_LTOFF_DTPMOD22:
4356 if (!dynamic_symbol_p && !info->shared)
4357 value = 1;
4358 got_r_type = R_IA64_DTPMOD64LSB;
4359 break;
4360 case R_IA64_LTOFF_DTPREL22:
4361 if (!dynamic_symbol_p)
4362 value -= elfNN_ia64_dtprel_base (info);
4363 got_r_type = R_IA64_DTPREL64LSB;
4364 break;
4365 }
4366 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, FALSE);
4367 value = set_got_entry (input_bfd, info, dyn_i, dynindx, r_addend,
4368 value, got_r_type);
4369 value -= gp_val;
4370 r = elfNN_ia64_install_value (output_bfd, hit_addr, value,
4371 r_type);
4372 }
4373 break;
4374
4375 default:
4376 r = bfd_reloc_notsupported;
4377 break;
4378 }
4379
4380 switch (r)
4381 {
4382 case bfd_reloc_ok:
4383 break;
4384
4385 case bfd_reloc_undefined:
4386 /* This can happen for global table relative relocs if
4387 __gp is undefined. This is a panic situation so we
4388 don't try to continue. */
4389 (*info->callbacks->undefined_symbol)
4390 (info, "__gp", input_bfd, input_section, rel->r_offset, 1);
4391 return FALSE;
4392
4393 case bfd_reloc_notsupported:
4394 {
4395 const char *name;
4396
4397 if (h)
4398 name = h->root.root.string;
4399 else
4400 {
4401 name = bfd_elf_string_from_elf_section (input_bfd,
4402 symtab_hdr->sh_link,
4403 sym->st_name);
4404 if (name == NULL)
4405 return FALSE;
4406 if (*name == '\0')
4407 name = bfd_section_name (input_bfd, input_section);
4408 }
4409 if (!(*info->callbacks->warning) (info, _("unsupported reloc"),
4410 name, input_bfd,
4411 input_section, rel->r_offset))
4412 return FALSE;
4413 ret_val = FALSE;
4414 }
4415 break;
4416
4417 case bfd_reloc_dangerous:
4418 case bfd_reloc_outofrange:
4419 case bfd_reloc_overflow:
4420 default:
4421 {
4422 const char *name;
4423
4424 if (h)
4425 name = h->root.root.string;
4426 else
4427 {
4428 name = bfd_elf_string_from_elf_section (input_bfd,
4429 symtab_hdr->sh_link,
4430 sym->st_name);
4431 if (name == NULL)
4432 return FALSE;
4433 if (*name == '\0')
4434 name = bfd_section_name (input_bfd, input_section);
4435 }
4436 if (!(*info->callbacks->reloc_overflow) (info, name,
4437 howto->name,
4438 (bfd_vma) 0,
4439 input_bfd,
4440 input_section,
4441 rel->r_offset))
4442 return FALSE;
4443 ret_val = FALSE;
4444 }
4445 break;
4446 }
4447 }
4448
4449 return ret_val;
4450 }
4451
4452 static bfd_boolean
4453 elfNN_ia64_finish_dynamic_symbol (output_bfd, info, h, sym)
4454 bfd *output_bfd;
4455 struct bfd_link_info *info;
4456 struct elf_link_hash_entry *h;
4457 Elf_Internal_Sym *sym;
4458 {
4459 struct elfNN_ia64_link_hash_table *ia64_info;
4460 struct elfNN_ia64_dyn_sym_info *dyn_i;
4461
4462 ia64_info = elfNN_ia64_hash_table (info);
4463 dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, FALSE);
4464
4465 /* Fill in the PLT data, if required. */
4466 if (dyn_i && dyn_i->want_plt)
4467 {
4468 Elf_Internal_Rela outrel;
4469 bfd_byte *loc;
4470 asection *plt_sec;
4471 bfd_vma plt_addr, pltoff_addr, gp_val, index;
4472
4473 gp_val = _bfd_get_gp_value (output_bfd);
4474
4475 /* Initialize the minimal PLT entry. */
4476
4477 index = (dyn_i->plt_offset - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
4478 plt_sec = ia64_info->plt_sec;
4479 loc = plt_sec->contents + dyn_i->plt_offset;
4480
4481 memcpy (loc, plt_min_entry, PLT_MIN_ENTRY_SIZE);
4482 elfNN_ia64_install_value (output_bfd, loc, index, R_IA64_IMM22);
4483 elfNN_ia64_install_value (output_bfd, loc+2, -dyn_i->plt_offset,
4484 R_IA64_PCREL21B);
4485
4486 plt_addr = (plt_sec->output_section->vma
4487 + plt_sec->output_offset
4488 + dyn_i->plt_offset);
4489 pltoff_addr = set_pltoff_entry (output_bfd, info, dyn_i, plt_addr, TRUE);
4490
4491 /* Initialize the FULL PLT entry, if needed. */
4492 if (dyn_i->want_plt2)
4493 {
4494 loc = plt_sec->contents + dyn_i->plt2_offset;
4495
4496 memcpy (loc, plt_full_entry, PLT_FULL_ENTRY_SIZE);
4497 elfNN_ia64_install_value (output_bfd, loc, pltoff_addr - gp_val,
4498 R_IA64_IMM22);
4499
4500 /* Mark the symbol as undefined, rather than as defined in the
4501 plt section. Leave the value alone. */
4502 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4503 first place. But perhaps elflink.h did some for us. */
4504 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
4505 sym->st_shndx = SHN_UNDEF;
4506 }
4507
4508 /* Create the dynamic relocation. */
4509 outrel.r_offset = pltoff_addr;
4510 if (bfd_little_endian (output_bfd))
4511 outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTLSB);
4512 else
4513 outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTMSB);
4514 outrel.r_addend = 0;
4515
4516 /* This is fun. In the .IA_64.pltoff section, we've got entries
4517 that correspond both to real PLT entries, and those that
4518 happened to resolve to local symbols but need to be created
4519 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4520 relocations for the real PLT should come at the end of the
4521 section, so that they can be indexed by plt entry at runtime.
4522
4523 We emitted all of the relocations for the non-PLT @pltoff
4524 entries during relocate_section. So we can consider the
4525 existing sec->reloc_count to be the base of the array of
4526 PLT relocations. */
4527
4528 loc = ia64_info->rel_pltoff_sec->contents;
4529 loc += ((ia64_info->rel_pltoff_sec->reloc_count + index)
4530 * sizeof (ElfNN_External_Rela));
4531 bfd_elfNN_swap_reloca_out (output_bfd, &outrel, loc);
4532 }
4533
4534 /* Mark some specially defined symbols as absolute. */
4535 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
4536 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
4537 || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
4538 sym->st_shndx = SHN_ABS;
4539
4540 return TRUE;
4541 }
4542
4543 static bfd_boolean
4544 elfNN_ia64_finish_dynamic_sections (abfd, info)
4545 bfd *abfd;
4546 struct bfd_link_info *info;
4547 {
4548 struct elfNN_ia64_link_hash_table *ia64_info;
4549 bfd *dynobj;
4550
4551 ia64_info = elfNN_ia64_hash_table (info);
4552 dynobj = ia64_info->root.dynobj;
4553
4554 if (elf_hash_table (info)->dynamic_sections_created)
4555 {
4556 ElfNN_External_Dyn *dyncon, *dynconend;
4557 asection *sdyn, *sgotplt;
4558 bfd_vma gp_val;
4559
4560 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4561 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
4562 BFD_ASSERT (sdyn != NULL);
4563 dyncon = (ElfNN_External_Dyn *) sdyn->contents;
4564 dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
4565
4566 gp_val = _bfd_get_gp_value (abfd);
4567
4568 for (; dyncon < dynconend; dyncon++)
4569 {
4570 Elf_Internal_Dyn dyn;
4571
4572 bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn);
4573
4574 switch (dyn.d_tag)
4575 {
4576 case DT_PLTGOT:
4577 dyn.d_un.d_ptr = gp_val;
4578 break;
4579
4580 case DT_PLTRELSZ:
4581 dyn.d_un.d_val = (ia64_info->minplt_entries
4582 * sizeof (ElfNN_External_Rela));
4583 break;
4584
4585 case DT_JMPREL:
4586 /* See the comment above in finish_dynamic_symbol. */
4587 dyn.d_un.d_ptr = (ia64_info->rel_pltoff_sec->output_section->vma
4588 + ia64_info->rel_pltoff_sec->output_offset
4589 + (ia64_info->rel_pltoff_sec->reloc_count
4590 * sizeof (ElfNN_External_Rela)));
4591 break;
4592
4593 case DT_IA_64_PLT_RESERVE:
4594 dyn.d_un.d_ptr = (sgotplt->output_section->vma
4595 + sgotplt->output_offset);
4596 break;
4597
4598 case DT_RELASZ:
4599 /* Do not have RELASZ include JMPREL. This makes things
4600 easier on ld.so. This is not what the rest of BFD set up. */
4601 dyn.d_un.d_val -= (ia64_info->minplt_entries
4602 * sizeof (ElfNN_External_Rela));
4603 break;
4604 }
4605
4606 bfd_elfNN_swap_dyn_out (abfd, &dyn, dyncon);
4607 }
4608
4609 /* Initialize the PLT0 entry. */
4610 if (ia64_info->plt_sec)
4611 {
4612 bfd_byte *loc = ia64_info->plt_sec->contents;
4613 bfd_vma pltres;
4614
4615 memcpy (loc, plt_header, PLT_HEADER_SIZE);
4616
4617 pltres = (sgotplt->output_section->vma
4618 + sgotplt->output_offset
4619 - gp_val);
4620
4621 elfNN_ia64_install_value (abfd, loc+1, pltres, R_IA64_GPREL22);
4622 }
4623 }
4624
4625 return TRUE;
4626 }
4627 \f
4628 /* ELF file flag handling: */
4629
4630 /* Function to keep IA-64 specific file flags. */
4631 static bfd_boolean
4632 elfNN_ia64_set_private_flags (abfd, flags)
4633 bfd *abfd;
4634 flagword flags;
4635 {
4636 BFD_ASSERT (!elf_flags_init (abfd)
4637 || elf_elfheader (abfd)->e_flags == flags);
4638
4639 elf_elfheader (abfd)->e_flags = flags;
4640 elf_flags_init (abfd) = TRUE;
4641 return TRUE;
4642 }
4643
4644 /* Merge backend specific data from an object file to the output
4645 object file when linking. */
4646 static bfd_boolean
4647 elfNN_ia64_merge_private_bfd_data (ibfd, obfd)
4648 bfd *ibfd, *obfd;
4649 {
4650 flagword out_flags;
4651 flagword in_flags;
4652 bfd_boolean ok = TRUE;
4653
4654 /* Don't even pretend to support mixed-format linking. */
4655 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4656 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4657 return FALSE;
4658
4659 in_flags = elf_elfheader (ibfd)->e_flags;
4660 out_flags = elf_elfheader (obfd)->e_flags;
4661
4662 if (! elf_flags_init (obfd))
4663 {
4664 elf_flags_init (obfd) = TRUE;
4665 elf_elfheader (obfd)->e_flags = in_flags;
4666
4667 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
4668 && bfd_get_arch_info (obfd)->the_default)
4669 {
4670 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
4671 bfd_get_mach (ibfd));
4672 }
4673
4674 return TRUE;
4675 }
4676
4677 /* Check flag compatibility. */
4678 if (in_flags == out_flags)
4679 return TRUE;
4680
4681 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4682 if (!(in_flags & EF_IA_64_REDUCEDFP) && (out_flags & EF_IA_64_REDUCEDFP))
4683 elf_elfheader (obfd)->e_flags &= ~EF_IA_64_REDUCEDFP;
4684
4685 if ((in_flags & EF_IA_64_TRAPNIL) != (out_flags & EF_IA_64_TRAPNIL))
4686 {
4687 (*_bfd_error_handler)
4688 (_("%s: linking trap-on-NULL-dereference with non-trapping files"),
4689 bfd_archive_filename (ibfd));
4690
4691 bfd_set_error (bfd_error_bad_value);
4692 ok = FALSE;
4693 }
4694 if ((in_flags & EF_IA_64_BE) != (out_flags & EF_IA_64_BE))
4695 {
4696 (*_bfd_error_handler)
4697 (_("%s: linking big-endian files with little-endian files"),
4698 bfd_archive_filename (ibfd));
4699
4700 bfd_set_error (bfd_error_bad_value);
4701 ok = FALSE;
4702 }
4703 if ((in_flags & EF_IA_64_ABI64) != (out_flags & EF_IA_64_ABI64))
4704 {
4705 (*_bfd_error_handler)
4706 (_("%s: linking 64-bit files with 32-bit files"),
4707 bfd_archive_filename (ibfd));
4708
4709 bfd_set_error (bfd_error_bad_value);
4710 ok = FALSE;
4711 }
4712 if ((in_flags & EF_IA_64_CONS_GP) != (out_flags & EF_IA_64_CONS_GP))
4713 {
4714 (*_bfd_error_handler)
4715 (_("%s: linking constant-gp files with non-constant-gp files"),
4716 bfd_archive_filename (ibfd));
4717
4718 bfd_set_error (bfd_error_bad_value);
4719 ok = FALSE;
4720 }
4721 if ((in_flags & EF_IA_64_NOFUNCDESC_CONS_GP)
4722 != (out_flags & EF_IA_64_NOFUNCDESC_CONS_GP))
4723 {
4724 (*_bfd_error_handler)
4725 (_("%s: linking auto-pic files with non-auto-pic files"),
4726 bfd_archive_filename (ibfd));
4727
4728 bfd_set_error (bfd_error_bad_value);
4729 ok = FALSE;
4730 }
4731
4732 return ok;
4733 }
4734
4735 static bfd_boolean
4736 elfNN_ia64_print_private_bfd_data (abfd, ptr)
4737 bfd *abfd;
4738 PTR ptr;
4739 {
4740 FILE *file = (FILE *) ptr;
4741 flagword flags = elf_elfheader (abfd)->e_flags;
4742
4743 BFD_ASSERT (abfd != NULL && ptr != NULL);
4744
4745 fprintf (file, "private flags = %s%s%s%s%s%s%s%s\n",
4746 (flags & EF_IA_64_TRAPNIL) ? "TRAPNIL, " : "",
4747 (flags & EF_IA_64_EXT) ? "EXT, " : "",
4748 (flags & EF_IA_64_BE) ? "BE, " : "LE, ",
4749 (flags & EF_IA_64_REDUCEDFP) ? "REDUCEDFP, " : "",
4750 (flags & EF_IA_64_CONS_GP) ? "CONS_GP, " : "",
4751 (flags & EF_IA_64_NOFUNCDESC_CONS_GP) ? "NOFUNCDESC_CONS_GP, " : "",
4752 (flags & EF_IA_64_ABSOLUTE) ? "ABSOLUTE, " : "",
4753 (flags & EF_IA_64_ABI64) ? "ABI64" : "ABI32");
4754
4755 _bfd_elf_print_private_bfd_data (abfd, ptr);
4756 return TRUE;
4757 }
4758
4759 static enum elf_reloc_type_class
4760 elfNN_ia64_reloc_type_class (rela)
4761 const Elf_Internal_Rela *rela;
4762 {
4763 switch ((int) ELFNN_R_TYPE (rela->r_info))
4764 {
4765 case R_IA64_REL32MSB:
4766 case R_IA64_REL32LSB:
4767 case R_IA64_REL64MSB:
4768 case R_IA64_REL64LSB:
4769 return reloc_class_relative;
4770 case R_IA64_IPLTMSB:
4771 case R_IA64_IPLTLSB:
4772 return reloc_class_plt;
4773 case R_IA64_COPY:
4774 return reloc_class_copy;
4775 default:
4776 return reloc_class_normal;
4777 }
4778 }
4779
4780 static struct bfd_elf_special_section const elfNN_ia64_special_sections[]=
4781 {
4782 { ".sbss", 5, -1, SHT_NOBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
4783 { ".sdata", 6, -1, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE + SHF_IA_64_SHORT },
4784 { NULL, 0, 0, 0, 0 }
4785 };
4786
4787 static bfd_boolean
4788 elfNN_ia64_hpux_vec (const bfd_target *vec)
4789 {
4790 extern const bfd_target bfd_elfNN_ia64_hpux_big_vec;
4791 return (vec == & bfd_elfNN_ia64_hpux_big_vec);
4792 }
4793
4794 static void
4795 elfNN_hpux_post_process_headers (abfd, info)
4796 bfd *abfd;
4797 struct bfd_link_info *info ATTRIBUTE_UNUSED;
4798 {
4799 Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd);
4800
4801 i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX;
4802 i_ehdrp->e_ident[EI_ABIVERSION] = 1;
4803 }
4804
4805 bfd_boolean
4806 elfNN_hpux_backend_section_from_bfd_section (abfd, sec, retval)
4807 bfd *abfd ATTRIBUTE_UNUSED;
4808 asection *sec;
4809 int *retval;
4810 {
4811 if (bfd_is_com_section (sec))
4812 {
4813 *retval = SHN_IA_64_ANSI_COMMON;
4814 return TRUE;
4815 }
4816 return FALSE;
4817 }
4818
4819 static void
4820 elfNN_hpux_backend_symbol_processing (bfd *abfd ATTRIBUTE_UNUSED,
4821 asymbol *asym)
4822 {
4823 elf_symbol_type *elfsym = (elf_symbol_type *) asym;;
4824
4825 switch (elfsym->internal_elf_sym.st_shndx)
4826 {
4827 case SHN_IA_64_ANSI_COMMON:
4828 asym->section = bfd_com_section_ptr;
4829 asym->value = elfsym->internal_elf_sym.st_size;
4830 asym->flags &= ~BSF_GLOBAL;
4831 break;
4832 }
4833 }
4834
4835 \f
4836 #define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
4837 #define TARGET_LITTLE_NAME "elfNN-ia64-little"
4838 #define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec
4839 #define TARGET_BIG_NAME "elfNN-ia64-big"
4840 #define ELF_ARCH bfd_arch_ia64
4841 #define ELF_MACHINE_CODE EM_IA_64
4842 #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
4843 #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
4844 #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
4845
4846 #define elf_backend_section_from_shdr \
4847 elfNN_ia64_section_from_shdr
4848 #define elf_backend_section_flags \
4849 elfNN_ia64_section_flags
4850 #define elf_backend_fake_sections \
4851 elfNN_ia64_fake_sections
4852 #define elf_backend_final_write_processing \
4853 elfNN_ia64_final_write_processing
4854 #define elf_backend_add_symbol_hook \
4855 elfNN_ia64_add_symbol_hook
4856 #define elf_backend_additional_program_headers \
4857 elfNN_ia64_additional_program_headers
4858 #define elf_backend_modify_segment_map \
4859 elfNN_ia64_modify_segment_map
4860 #define elf_info_to_howto \
4861 elfNN_ia64_info_to_howto
4862
4863 #define bfd_elfNN_bfd_reloc_type_lookup \
4864 elfNN_ia64_reloc_type_lookup
4865 #define bfd_elfNN_bfd_is_local_label_name \
4866 elfNN_ia64_is_local_label_name
4867 #define bfd_elfNN_bfd_relax_section \
4868 elfNN_ia64_relax_section
4869
4870 /* Stuff for the BFD linker: */
4871 #define bfd_elfNN_bfd_link_hash_table_create \
4872 elfNN_ia64_hash_table_create
4873 #define bfd_elfNN_bfd_link_hash_table_free \
4874 elfNN_ia64_hash_table_free
4875 #define elf_backend_create_dynamic_sections \
4876 elfNN_ia64_create_dynamic_sections
4877 #define elf_backend_check_relocs \
4878 elfNN_ia64_check_relocs
4879 #define elf_backend_adjust_dynamic_symbol \
4880 elfNN_ia64_adjust_dynamic_symbol
4881 #define elf_backend_size_dynamic_sections \
4882 elfNN_ia64_size_dynamic_sections
4883 #define elf_backend_relocate_section \
4884 elfNN_ia64_relocate_section
4885 #define elf_backend_finish_dynamic_symbol \
4886 elfNN_ia64_finish_dynamic_symbol
4887 #define elf_backend_finish_dynamic_sections \
4888 elfNN_ia64_finish_dynamic_sections
4889 #define bfd_elfNN_bfd_final_link \
4890 elfNN_ia64_final_link
4891
4892 #define bfd_elfNN_bfd_merge_private_bfd_data \
4893 elfNN_ia64_merge_private_bfd_data
4894 #define bfd_elfNN_bfd_set_private_flags \
4895 elfNN_ia64_set_private_flags
4896 #define bfd_elfNN_bfd_print_private_bfd_data \
4897 elfNN_ia64_print_private_bfd_data
4898
4899 #define elf_backend_plt_readonly 1
4900 #define elf_backend_want_plt_sym 0
4901 #define elf_backend_plt_alignment 5
4902 #define elf_backend_got_header_size 0
4903 #define elf_backend_plt_header_size PLT_HEADER_SIZE
4904 #define elf_backend_want_got_plt 1
4905 #define elf_backend_may_use_rel_p 1
4906 #define elf_backend_may_use_rela_p 1
4907 #define elf_backend_default_use_rela_p 1
4908 #define elf_backend_want_dynbss 0
4909 #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
4910 #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
4911 #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
4912 #define elf_backend_rela_normal 1
4913 #define elf_backend_special_sections elfNN_ia64_special_sections
4914
4915 #include "elfNN-target.h"
4916
4917 /* HPUX-specific vectors. */
4918
4919 #undef TARGET_LITTLE_SYM
4920 #undef TARGET_LITTLE_NAME
4921 #undef TARGET_BIG_SYM
4922 #define TARGET_BIG_SYM bfd_elfNN_ia64_hpux_big_vec
4923 #undef TARGET_BIG_NAME
4924 #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
4925
4926 /* These are HP-UX specific functions. */
4927
4928 #undef elf_backend_post_process_headers
4929 #define elf_backend_post_process_headers elfNN_hpux_post_process_headers
4930
4931 #undef elf_backend_section_from_bfd_section
4932 #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
4933
4934 #undef elf_backend_symbol_processing
4935 #define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
4936
4937 #undef elf_backend_want_p_paddr_set_to_zero
4938 #define elf_backend_want_p_paddr_set_to_zero 1
4939
4940 #undef ELF_MAXPAGESIZE
4941 #define ELF_MAXPAGESIZE 0x1000 /* 1K */
4942
4943 #undef elfNN_bed
4944 #define elfNN_bed elfNN_ia64_hpux_bed
4945
4946 #include "elfNN-target.h"
4947
4948 #undef elf_backend_want_p_paddr_set_to_zero
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