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* elf-bfd.h (elf_backend_emit_relocs): Change prototype to return
[deliverable/binutils-gdb.git] / bfd / elfxx-ia64.c
CommitLineData
800eeca4 1/* IA-64 support for 64-bit ELF
e5094212 2 Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
800eeca4
JW		 3 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
4
5This file is part of BFD, the Binary File Descriptor library.
6
7This program is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2 of the License, or
10(at your option) any later version.
11
12This program is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with this program; if not, write to the Free Software
19Foundation, 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
28/*
29 * THE RULES for all the stuff the linker creates --
30 *
31 * GOT Entries created in response to LTOFF or LTOFF_FPTR
32 * relocations. Dynamic relocs created for dynamic
33 * symbols in an application; REL relocs for locals
34 * in a shared library.
35 *
36 * FPTR The canonical function descriptor. Created for local
37 * symbols in applications. Descriptors for dynamic symbols
38 * and local symbols in shared libraries are created by
39 * ld.so. Thus there are no dynamic relocs against these
40 * objects. The FPTR relocs for such _are_ passed through
41 * to the dynamic relocation tables.
42 *
43 * FULL_PLT Created for a PCREL21B relocation against a dynamic symbol.
44 * Requires the creation of a PLTOFF entry. This does not
45 * require any dynamic relocations.
46 *
47 * PLTOFF Created by PLTOFF relocations. For local symbols, this
48 * is an alternate function descriptor, and in shared libraries
49 * requires two REL relocations. Note that this cannot be
50 * transformed into an FPTR relocation, since it must be in
51 * range of the GP. For dynamic symbols, this is a function
52 * descriptor for a MIN_PLT entry, and requires one IPLT reloc.
53 *
54 * MIN_PLT Created by PLTOFF entries against dynamic symbols. This
55 * does not reqire dynamic relocations.
56 */
57
58#define USE_RELA /* we want RELA relocs, not REL */
59
60#define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
61
62typedef struct bfd_hash_entry *(*new_hash_entry_func)
63 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
64
65/* In dynamically (linker-) created sections, we generally need to keep track
66 of the place a symbol or expression got allocated to. This is done via hash
67 tables that store entries of the following type. */
68
bbe66d08 69struct elfNN_ia64_dyn_sym_info
800eeca4
JW		 70{
71 /* The addend for which this entry is relevant. */
72 bfd_vma addend;
73
74 /* Next addend in the list. */
bbe66d08 75 struct elfNN_ia64_dyn_sym_info *next;
800eeca4
JW		 76
77 bfd_vma got_offset;
78 bfd_vma fptr_offset;
79 bfd_vma pltoff_offset;
80 bfd_vma plt_offset;
81 bfd_vma plt2_offset;
82
83 /* The symbol table entry, if any, that this was derrived from. */
84 struct elf_link_hash_entry *h;
3e932841 85
800eeca4
JW		 86 /* Used to count non-got, non-plt relocations for delayed sizing
87 of relocation sections. */
bbe66d08 88 struct elfNN_ia64_dyn_reloc_entry
800eeca4 89 {
bbe66d08 90 struct elfNN_ia64_dyn_reloc_entry *next;
800eeca4
JW		 91 asection *srel;
92 int type;
93 int count;
94 } *reloc_entries;
95
96 /* True when the section contents have been updated. */
97 unsigned got_done : 1;
98 unsigned fptr_done : 1;
99 unsigned pltoff_done : 1;
100
101 /* True for the different kinds of linker data we want created. */
102 unsigned want_got : 1;
103 unsigned want_fptr : 1;
104 unsigned want_ltoff_fptr : 1;
105 unsigned want_plt : 1;
106 unsigned want_plt2 : 1;
107 unsigned want_pltoff : 1;
108};
109
bbe66d08 110struct elfNN_ia64_local_hash_entry
800eeca4
JW		 111{
112 struct bfd_hash_entry root;
bbe66d08 113 struct elfNN_ia64_dyn_sym_info *info;
f7460f5f
JJ		 114
115 /* True if this hash entry's addends was translated for
116 SHF_MERGE optimization. */
117 unsigned sec_merge_done : 1;
800eeca4
JW		 118};
119
bbe66d08 120struct elfNN_ia64_local_hash_table
800eeca4
JW		 121{
122 struct bfd_hash_table root;
123 /* No additional fields for now. */
124};
125
bbe66d08 126struct elfNN_ia64_link_hash_entry
800eeca4
JW		 127{
128 struct elf_link_hash_entry root;
bbe66d08 129 struct elfNN_ia64_dyn_sym_info *info;
800eeca4
JW		 130};
131
bbe66d08 132struct elfNN_ia64_link_hash_table
800eeca4
JW		 133{
134 /* The main hash table */
135 struct elf_link_hash_table root;
136
137 asection *got_sec; /* the linkage table section (or NULL) */
138 asection *rel_got_sec; /* dynamic relocation section for same */
139 asection *fptr_sec; /* function descriptor table (or NULL) */
140 asection *plt_sec; /* the primary plt section (or NULL) */
141 asection *pltoff_sec; /* private descriptors for plt (or NULL) */
142 asection *rel_pltoff_sec; /* dynamic relocation section for same */
143
144 bfd_size_type minplt_entries; /* number of minplt entries */
db6751f2 145 unsigned reltext : 1; /* are there relocs against readonly sections? */
800eeca4 146
bbe66d08 147 struct elfNN_ia64_local_hash_table loc_hash_table;
800eeca4
JW		 148};
149
bbe66d08
JW		 150#define elfNN_ia64_hash_table(p) \
151 ((struct elfNN_ia64_link_hash_table *) ((p)->hash))
800eeca4 152
bbe66d08 153static bfd_reloc_status_type elfNN_ia64_reloc
800eeca4
JW		 154 PARAMS ((bfd *abfd, arelent *reloc, asymbol *sym, PTR data,
155 asection *input_section, bfd *output_bfd, char **error_message));
156static reloc_howto_type * lookup_howto
157 PARAMS ((unsigned int rtype));
bbe66d08 158static reloc_howto_type *elfNN_ia64_reloc_type_lookup
800eeca4 159 PARAMS ((bfd *abfd, bfd_reloc_code_real_type bfd_code));
bbe66d08
JW		 160static void elfNN_ia64_info_to_howto
161 PARAMS ((bfd *abfd, arelent *bfd_reloc, ElfNN_Internal_Rela *elf_reloc));
162static boolean elfNN_ia64_relax_section
748abff6
RH		 163 PARAMS((bfd *abfd, asection *sec, struct bfd_link_info *link_info,
164 boolean *again));
81545d45 165static boolean is_unwind_section_name
d9cf1b54 166 PARAMS ((bfd *abfd, const char *));
bbe66d08
JW		 167static boolean elfNN_ia64_section_from_shdr
168 PARAMS ((bfd *, ElfNN_Internal_Shdr *, char *));
cea4409c
AM		 169static boolean elfNN_ia64_section_flags
170 PARAMS ((flagword *, ElfNN_Internal_Shdr *));
bbe66d08
JW		 171static boolean elfNN_ia64_fake_sections
172 PARAMS ((bfd *abfd, ElfNN_Internal_Shdr *hdr, asection *sec));
81545d45
RH		 173static void elfNN_ia64_final_write_processing
174 PARAMS ((bfd *abfd, boolean linker));
bbe66d08 175static boolean elfNN_ia64_add_symbol_hook
800eeca4
JW		 176 PARAMS ((bfd *abfd, struct bfd_link_info *info, const Elf_Internal_Sym *sym,
177 const char **namep, flagword *flagsp, asection **secp,
178 bfd_vma *valp));
dc810e39 179static boolean elfNN_ia64_aix_vec
7b6dab7f
TW		 180 PARAMS ((const bfd_target *vec));
181static boolean elfNN_ia64_aix_add_symbol_hook
182 PARAMS ((bfd *abfd, struct bfd_link_info *info, const Elf_Internal_Sym *sym,
183 const char **namep, flagword *flagsp, asection **secp,
184 bfd_vma *valp));
185static boolean elfNN_ia64_aix_link_add_symbols
186 PARAMS ((bfd *abfd, struct bfd_link_info *info));
bbe66d08 187static int elfNN_ia64_additional_program_headers
800eeca4 188 PARAMS ((bfd *abfd));
cea4409c
AM		 189static boolean elfNN_ia64_modify_segment_map
190 PARAMS ((bfd *));
bbe66d08 191static boolean elfNN_ia64_is_local_label_name
800eeca4 192 PARAMS ((bfd *abfd, const char *name));
bbe66d08 193static boolean elfNN_ia64_dynamic_symbol_p
800eeca4 194 PARAMS ((struct elf_link_hash_entry *h, struct bfd_link_info *info));
bbe66d08
JW		 195static boolean elfNN_ia64_local_hash_table_init
196 PARAMS ((struct elfNN_ia64_local_hash_table *ht, bfd *abfd,
800eeca4 197 new_hash_entry_func new));
bbe66d08 198static struct bfd_hash_entry *elfNN_ia64_new_loc_hash_entry
800eeca4
JW		 199 PARAMS ((struct bfd_hash_entry *entry, struct bfd_hash_table *table,
200 const char *string));
bbe66d08 201static struct bfd_hash_entry *elfNN_ia64_new_elf_hash_entry
800eeca4
JW		 202 PARAMS ((struct bfd_hash_entry *entry, struct bfd_hash_table *table,
203 const char *string));
cea4409c
AM		 204static void elfNN_ia64_hash_copy_indirect
205 PARAMS ((struct elf_link_hash_entry *, struct elf_link_hash_entry *));
206static void elfNN_ia64_hash_hide_symbol
e5094212 207 PARAMS ((struct bfd_link_info *, struct elf_link_hash_entry *, boolean));
bbe66d08 208static struct bfd_link_hash_table *elfNN_ia64_hash_table_create
800eeca4 209 PARAMS ((bfd *abfd));
bbe66d08
JW		 210static struct elfNN_ia64_local_hash_entry *elfNN_ia64_local_hash_lookup
211 PARAMS ((struct elfNN_ia64_local_hash_table *table, const char *string,
800eeca4 212 boolean create, boolean copy));
cea4409c
AM		 213static boolean elfNN_ia64_global_dyn_sym_thunk
214 PARAMS ((struct bfd_hash_entry *, PTR));
215static boolean elfNN_ia64_local_dyn_sym_thunk
216 PARAMS ((struct bfd_hash_entry *, PTR));
bbe66d08
JW		 217static void elfNN_ia64_dyn_sym_traverse
218 PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
3e932841 219 boolean (*func) (struct elfNN_ia64_dyn_sym_info *, PTR),
800eeca4 220 PTR info));
bbe66d08 221static boolean elfNN_ia64_create_dynamic_sections
800eeca4 222 PARAMS ((bfd *abfd, struct bfd_link_info *info));
f7460f5f
JJ		 223static struct elfNN_ia64_local_hash_entry * get_local_sym_hash
224 PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
225 bfd *abfd, const Elf_Internal_Rela *rel, boolean create));
bbe66d08
JW		 226static struct elfNN_ia64_dyn_sym_info * get_dyn_sym_info
227 PARAMS ((struct elfNN_ia64_link_hash_table *ia64_info,
800eeca4
JW		 228 struct elf_link_hash_entry *h,
229 bfd *abfd, const Elf_Internal_Rela *rel, boolean create));
230static asection *get_got
231 PARAMS ((bfd *abfd, struct bfd_link_info *info,
bbe66d08 232 struct elfNN_ia64_link_hash_table *ia64_info));
800eeca4
JW		 233static asection *get_fptr
234 PARAMS ((bfd *abfd, struct bfd_link_info *info,
bbe66d08 235 struct elfNN_ia64_link_hash_table *ia64_info));
800eeca4
JW		 236static asection *get_pltoff
237 PARAMS ((bfd *abfd, struct bfd_link_info *info,
bbe66d08 238 struct elfNN_ia64_link_hash_table *ia64_info));
800eeca4 239static asection *get_reloc_section
bbe66d08 240 PARAMS ((bfd *abfd, struct elfNN_ia64_link_hash_table *ia64_info,
800eeca4
JW		 241 asection *sec, boolean create));
242static boolean count_dyn_reloc
bbe66d08 243 PARAMS ((bfd *abfd, struct elfNN_ia64_dyn_sym_info *dyn_i,
800eeca4 244 asection *srel, int type));
bbe66d08 245static boolean elfNN_ia64_check_relocs
800eeca4
JW		 246 PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *sec,
247 const Elf_Internal_Rela *relocs));
bbe66d08 248static boolean elfNN_ia64_adjust_dynamic_symbol
800eeca4 249 PARAMS ((struct bfd_link_info *info, struct elf_link_hash_entry *h));
dc810e39 250static long global_sym_index
800eeca4
JW		 251 PARAMS ((struct elf_link_hash_entry *h));
252static boolean allocate_fptr
bbe66d08 253 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
800eeca4 254static boolean allocate_global_data_got
bbe66d08 255 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
800eeca4 256static boolean allocate_global_fptr_got
bbe66d08 257 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
800eeca4 258static boolean allocate_local_got
bbe66d08 259 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
800eeca4 260static boolean allocate_pltoff_entries
bbe66d08 261 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
800eeca4 262static boolean allocate_plt_entries
bbe66d08 263 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
800eeca4 264static boolean allocate_plt2_entries
bbe66d08 265 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
800eeca4 266static boolean allocate_dynrel_entries
bbe66d08
JW		 267 PARAMS ((struct elfNN_ia64_dyn_sym_info *dyn_i, PTR data));
268static boolean elfNN_ia64_size_dynamic_sections
800eeca4 269 PARAMS ((bfd *output_bfd, struct bfd_link_info *info));
bbe66d08 270static bfd_reloc_status_type elfNN_ia64_install_value
800eeca4 271 PARAMS ((bfd *abfd, bfd_byte *hit_addr, bfd_vma val, unsigned int r_type));
bbe66d08 272static void elfNN_ia64_install_dyn_reloc
800eeca4
JW		 273 PARAMS ((bfd *abfd, struct bfd_link_info *info, asection *sec,
274 asection *srel, bfd_vma offset, unsigned int type,
275 long dynindx, bfd_vma addend));
276static bfd_vma set_got_entry
277 PARAMS ((bfd *abfd, struct bfd_link_info *info,
bbe66d08 278 struct elfNN_ia64_dyn_sym_info *dyn_i, long dynindx,
800eeca4
JW		 279 bfd_vma addend, bfd_vma value, unsigned int dyn_r_type));
280static bfd_vma set_fptr_entry
281 PARAMS ((bfd *abfd, struct bfd_link_info *info,
bbe66d08 282 struct elfNN_ia64_dyn_sym_info *dyn_i,
800eeca4
JW		 283 bfd_vma value));
284static bfd_vma set_pltoff_entry
285 PARAMS ((bfd *abfd, struct bfd_link_info *info,
bbe66d08 286 struct elfNN_ia64_dyn_sym_info *dyn_i,
800eeca4 287 bfd_vma value, boolean));
cea4409c
AM		 288static int elfNN_ia64_unwind_entry_compare
289 PARAMS ((const PTR, const PTR));
bbe66d08 290static boolean elfNN_ia64_final_link
800eeca4 291 PARAMS ((bfd *abfd, struct bfd_link_info *info));
bbe66d08 292static boolean elfNN_ia64_relocate_section
800eeca4
JW		 293 PARAMS ((bfd *output_bfd, struct bfd_link_info *info, bfd *input_bfd,
294 asection *input_section, bfd_byte *contents,
295 Elf_Internal_Rela *relocs, Elf_Internal_Sym *local_syms,
296 asection **local_sections));
bbe66d08 297static boolean elfNN_ia64_finish_dynamic_symbol
800eeca4
JW		 298 PARAMS ((bfd *output_bfd, struct bfd_link_info *info,
299 struct elf_link_hash_entry *h, Elf_Internal_Sym *sym));
bbe66d08 300static boolean elfNN_ia64_finish_dynamic_sections
800eeca4 301 PARAMS ((bfd *abfd, struct bfd_link_info *info));
bbe66d08 302static boolean elfNN_ia64_set_private_flags
800eeca4 303 PARAMS ((bfd *abfd, flagword flags));
bbe66d08 304static boolean elfNN_ia64_merge_private_bfd_data
800eeca4 305 PARAMS ((bfd *ibfd, bfd *obfd));
bbe66d08 306static boolean elfNN_ia64_print_private_bfd_data
800eeca4 307 PARAMS ((bfd *abfd, PTR ptr));
db6751f2 308static enum elf_reloc_type_class elfNN_ia64_reloc_type_class
f51e552e 309 PARAMS ((const Elf_Internal_Rela *));
d9cf1b54
AM		 310static boolean elfNN_ia64_hpux_vec
311 PARAMS ((const bfd_target *vec));
fcf12726
AM		 312static void elfNN_hpux_post_process_headers
313 PARAMS ((bfd *abfd, struct bfd_link_info *info));
d9cf1b54 314boolean elfNN_hpux_backend_section_from_bfd_section
af746e92 315 PARAMS ((bfd *abfd, asection *sec, int *retval));
800eeca4
JW		 316\f
317/* ia64-specific relocation */
318
319/* Perform a relocation. Not much to do here as all the hard work is
bbe66d08 320 done in elfNN_ia64_final_link_relocate. */
800eeca4 321static bfd_reloc_status_type
bbe66d08 322elfNN_ia64_reloc (abfd, reloc, sym, data, input_section,
800eeca4 323 output_bfd, error_message)
64bf6ae6 324 bfd *abfd ATTRIBUTE_UNUSED;
800eeca4 325 arelent *reloc;
64bf6ae6
JW		 326 asymbol *sym ATTRIBUTE_UNUSED;
327 PTR data ATTRIBUTE_UNUSED;
800eeca4
JW		 328 asection *input_section;
329 bfd *output_bfd;
330 char **error_message;
331{
332 if (output_bfd)
333 {
334 reloc->address += input_section->output_offset;
335 return bfd_reloc_ok;
336 }
bbe66d08 337 *error_message = "Unsupported call to elfNN_ia64_reloc";
800eeca4
JW		 338 return bfd_reloc_notsupported;
339}
340
341#define IA64_HOWTO(TYPE, NAME, SIZE, PCREL, IN) \
342 HOWTO (TYPE, 0, SIZE, 0, PCREL, 0, complain_overflow_signed, \
bbe66d08 343 elfNN_ia64_reloc, NAME, false, 0, 0, IN)
800eeca4
JW		 344
345/* This table has to be sorted according to increasing number of the
346 TYPE field. */
347static reloc_howto_type ia64_howto_table[] =
348 {
349 IA64_HOWTO (R_IA64_NONE, "NONE", 0, false, true),
350
351 IA64_HOWTO (R_IA64_IMM14, "IMM14", 0, false, true),
352 IA64_HOWTO (R_IA64_IMM22, "IMM22", 0, false, true),
353 IA64_HOWTO (R_IA64_IMM64, "IMM64", 0, false, true),
354 IA64_HOWTO (R_IA64_DIR32MSB, "DIR32MSB", 2, false, true),
355 IA64_HOWTO (R_IA64_DIR32LSB, "DIR32LSB", 2, false, true),
356 IA64_HOWTO (R_IA64_DIR64MSB, "DIR64MSB", 4, false, true),
357 IA64_HOWTO (R_IA64_DIR64LSB, "DIR64LSB", 4, false, true),
358
359 IA64_HOWTO (R_IA64_GPREL22, "GPREL22", 0, false, true),
360 IA64_HOWTO (R_IA64_GPREL64I, "GPREL64I", 0, false, true),
361 IA64_HOWTO (R_IA64_GPREL32MSB, "GPREL32MSB", 2, false, true),
362 IA64_HOWTO (R_IA64_GPREL32LSB, "GPREL32LSB", 2, false, true),
363 IA64_HOWTO (R_IA64_GPREL64MSB, "GPREL64MSB", 4, false, true),
364 IA64_HOWTO (R_IA64_GPREL64LSB, "GPREL64LSB", 4, false, true),
365
366 IA64_HOWTO (R_IA64_LTOFF22, "LTOFF22", 0, false, true),
367 IA64_HOWTO (R_IA64_LTOFF64I, "LTOFF64I", 0, false, true),
368
369 IA64_HOWTO (R_IA64_PLTOFF22, "PLTOFF22", 0, false, true),
370 IA64_HOWTO (R_IA64_PLTOFF64I, "PLTOFF64I", 0, false, true),
371 IA64_HOWTO (R_IA64_PLTOFF64MSB, "PLTOFF64MSB", 4, false, true),
372 IA64_HOWTO (R_IA64_PLTOFF64LSB, "PLTOFF64LSB", 4, false, true),
373
748abff6 374 IA64_HOWTO (R_IA64_FPTR64I, "FPTR64I", 0, false, true),
800eeca4
JW		 375 IA64_HOWTO (R_IA64_FPTR32MSB, "FPTR32MSB", 2, false, true),
376 IA64_HOWTO (R_IA64_FPTR32LSB, "FPTR32LSB", 2, false, true),
377 IA64_HOWTO (R_IA64_FPTR64MSB, "FPTR64MSB", 4, false, true),
378 IA64_HOWTO (R_IA64_FPTR64LSB, "FPTR64LSB", 4, false, true),
379
748abff6 380 IA64_HOWTO (R_IA64_PCREL60B, "PCREL60B", 0, true, true),
800eeca4
JW		 381 IA64_HOWTO (R_IA64_PCREL21B, "PCREL21B", 0, true, true),
382 IA64_HOWTO (R_IA64_PCREL21M, "PCREL21M", 0, true, true),
383 IA64_HOWTO (R_IA64_PCREL21F, "PCREL21F", 0, true, true),
384 IA64_HOWTO (R_IA64_PCREL32MSB, "PCREL32MSB", 2, true, true),
385 IA64_HOWTO (R_IA64_PCREL32LSB, "PCREL32LSB", 2, true, true),
386 IA64_HOWTO (R_IA64_PCREL64MSB, "PCREL64MSB", 4, true, true),
387 IA64_HOWTO (R_IA64_PCREL64LSB, "PCREL64LSB", 4, true, true),
388
748abff6
RH		 389 IA64_HOWTO (R_IA64_LTOFF_FPTR22, "LTOFF_FPTR22", 0, false, true),
390 IA64_HOWTO (R_IA64_LTOFF_FPTR64I, "LTOFF_FPTR64I", 0, false, true),
a4bd8390
JW		 391 IA64_HOWTO (R_IA64_LTOFF_FPTR32MSB, "LTOFF_FPTR32MSB", 2, false, true),
392 IA64_HOWTO (R_IA64_LTOFF_FPTR32LSB, "LTOFF_FPTR32LSB", 2, false, true),
800eeca4
JW		 393 IA64_HOWTO (R_IA64_LTOFF_FPTR64MSB, "LTOFF_FPTR64MSB", 4, false, true),
394 IA64_HOWTO (R_IA64_LTOFF_FPTR64LSB, "LTOFF_FPTR64LSB", 4, false, true),
395
800eeca4
JW		 396 IA64_HOWTO (R_IA64_SEGREL32MSB, "SEGREL32MSB", 2, false, true),
397 IA64_HOWTO (R_IA64_SEGREL32LSB, "SEGREL32LSB", 2, false, true),
398 IA64_HOWTO (R_IA64_SEGREL64MSB, "SEGREL64MSB", 4, false, true),
399 IA64_HOWTO (R_IA64_SEGREL64LSB, "SEGREL64LSB", 4, false, true),
400
401 IA64_HOWTO (R_IA64_SECREL32MSB, "SECREL32MSB", 2, false, true),
402 IA64_HOWTO (R_IA64_SECREL32LSB, "SECREL32LSB", 2, false, true),
403 IA64_HOWTO (R_IA64_SECREL64MSB, "SECREL64MSB", 4, false, true),
404 IA64_HOWTO (R_IA64_SECREL64LSB, "SECREL64LSB", 4, false, true),
405
406 IA64_HOWTO (R_IA64_REL32MSB, "REL32MSB", 2, false, true),
407 IA64_HOWTO (R_IA64_REL32LSB, "REL32LSB", 2, false, true),
408 IA64_HOWTO (R_IA64_REL64MSB, "REL64MSB", 4, false, true),
409 IA64_HOWTO (R_IA64_REL64LSB, "REL64LSB", 4, false, true),
410
411 IA64_HOWTO (R_IA64_LTV32MSB, "LTV32MSB", 2, false, true),
412 IA64_HOWTO (R_IA64_LTV32LSB, "LTV32LSB", 2, false, true),
413 IA64_HOWTO (R_IA64_LTV64MSB, "LTV64MSB", 4, false, true),
414 IA64_HOWTO (R_IA64_LTV64LSB, "LTV64LSB", 4, false, true),
415
748abff6
RH		 416 IA64_HOWTO (R_IA64_PCREL21BI, "PCREL21BI", 0, true, true),
417 IA64_HOWTO (R_IA64_PCREL22, "PCREL22", 0, true, true),
418 IA64_HOWTO (R_IA64_PCREL64I, "PCREL64I", 0, true, true),
419
800eeca4
JW		 420 IA64_HOWTO (R_IA64_IPLTMSB, "IPLTMSB", 4, false, true),
421 IA64_HOWTO (R_IA64_IPLTLSB, "IPLTLSB", 4, false, true),
800eeca4
JW		 422 IA64_HOWTO (R_IA64_COPY, "COPY", 4, false, true),
423 IA64_HOWTO (R_IA64_LTOFF22X, "LTOFF22X", 0, false, true),
424 IA64_HOWTO (R_IA64_LDXMOV, "LDXMOV", 0, false, true),
425
748abff6 426 IA64_HOWTO (R_IA64_TPREL22, "TPREL22", 0, false, false),
800eeca4
JW		 427 IA64_HOWTO (R_IA64_TPREL64MSB, "TPREL64MSB", 8, false, false),
428 IA64_HOWTO (R_IA64_TPREL64LSB, "TPREL64LSB", 8, false, false),
748abff6 429 IA64_HOWTO (R_IA64_LTOFF_TP22, "LTOFF_TP22", 0, false, false),
800eeca4
JW		 430 };
431
432static unsigned char elf_code_to_howto_index[R_IA64_MAX_RELOC_CODE + 1];
433
434/* Given a BFD reloc type, return the matching HOWTO structure. */
435
436static reloc_howto_type*
437lookup_howto (rtype)
438 unsigned int rtype;
439{
440 static int inited = 0;
441 int i;
442
443 if (!inited)
444 {
445 inited = 1;
446
447 memset (elf_code_to_howto_index, 0xff, sizeof (elf_code_to_howto_index));
448 for (i = 0; i < NELEMS (ia64_howto_table); ++i)
449 elf_code_to_howto_index[ia64_howto_table[i].type] = i;
450 }
451
452 BFD_ASSERT (rtype <= R_IA64_MAX_RELOC_CODE);
453 i = elf_code_to_howto_index[rtype];
454 if (i >= NELEMS (ia64_howto_table))
455 return 0;
456 return ia64_howto_table + i;
457}
458
459static reloc_howto_type*
bbe66d08 460elfNN_ia64_reloc_type_lookup (abfd, bfd_code)
64bf6ae6 461 bfd *abfd ATTRIBUTE_UNUSED;
800eeca4
JW		 462 bfd_reloc_code_real_type bfd_code;
463{
464 unsigned int rtype;
465
466 switch (bfd_code)
467 {
468 case BFD_RELOC_NONE: rtype = R_IA64_NONE; break;
469
470 case BFD_RELOC_IA64_IMM14: rtype = R_IA64_IMM14; break;
471 case BFD_RELOC_IA64_IMM22: rtype = R_IA64_IMM22; break;
472 case BFD_RELOC_IA64_IMM64: rtype = R_IA64_IMM64; break;
473
474 case BFD_RELOC_IA64_DIR32MSB: rtype = R_IA64_DIR32MSB; break;
475 case BFD_RELOC_IA64_DIR32LSB: rtype = R_IA64_DIR32LSB; break;
476 case BFD_RELOC_IA64_DIR64MSB: rtype = R_IA64_DIR64MSB; break;
477 case BFD_RELOC_IA64_DIR64LSB: rtype = R_IA64_DIR64LSB; break;
478
479 case BFD_RELOC_IA64_GPREL22: rtype = R_IA64_GPREL22; break;
480 case BFD_RELOC_IA64_GPREL64I: rtype = R_IA64_GPREL64I; break;
481 case BFD_RELOC_IA64_GPREL32MSB: rtype = R_IA64_GPREL32MSB; break;
482 case BFD_RELOC_IA64_GPREL32LSB: rtype = R_IA64_GPREL32LSB; break;
483 case BFD_RELOC_IA64_GPREL64MSB: rtype = R_IA64_GPREL64MSB; break;
484 case BFD_RELOC_IA64_GPREL64LSB: rtype = R_IA64_GPREL64LSB; break;
485
486 case BFD_RELOC_IA64_LTOFF22: rtype = R_IA64_LTOFF22; break;
487 case BFD_RELOC_IA64_LTOFF64I: rtype = R_IA64_LTOFF64I; break;
488
489 case BFD_RELOC_IA64_PLTOFF22: rtype = R_IA64_PLTOFF22; break;
490 case BFD_RELOC_IA64_PLTOFF64I: rtype = R_IA64_PLTOFF64I; break;
491 case BFD_RELOC_IA64_PLTOFF64MSB: rtype = R_IA64_PLTOFF64MSB; break;
492 case BFD_RELOC_IA64_PLTOFF64LSB: rtype = R_IA64_PLTOFF64LSB; break;
493 case BFD_RELOC_IA64_FPTR64I: rtype = R_IA64_FPTR64I; break;
494 case BFD_RELOC_IA64_FPTR32MSB: rtype = R_IA64_FPTR32MSB; break;
495 case BFD_RELOC_IA64_FPTR32LSB: rtype = R_IA64_FPTR32LSB; break;
496 case BFD_RELOC_IA64_FPTR64MSB: rtype = R_IA64_FPTR64MSB; break;
497 case BFD_RELOC_IA64_FPTR64LSB: rtype = R_IA64_FPTR64LSB; break;
498
499 case BFD_RELOC_IA64_PCREL21B: rtype = R_IA64_PCREL21B; break;
748abff6 500 case BFD_RELOC_IA64_PCREL21BI: rtype = R_IA64_PCREL21BI; break;
800eeca4
JW		 501 case BFD_RELOC_IA64_PCREL21M: rtype = R_IA64_PCREL21M; break;
502 case BFD_RELOC_IA64_PCREL21F: rtype = R_IA64_PCREL21F; break;
748abff6
RH		 503 case BFD_RELOC_IA64_PCREL22: rtype = R_IA64_PCREL22; break;
504 case BFD_RELOC_IA64_PCREL60B: rtype = R_IA64_PCREL60B; break;
505 case BFD_RELOC_IA64_PCREL64I: rtype = R_IA64_PCREL64I; break;
800eeca4
JW		 506 case BFD_RELOC_IA64_PCREL32MSB: rtype = R_IA64_PCREL32MSB; break;
507 case BFD_RELOC_IA64_PCREL32LSB: rtype = R_IA64_PCREL32LSB; break;
508 case BFD_RELOC_IA64_PCREL64MSB: rtype = R_IA64_PCREL64MSB; break;
509 case BFD_RELOC_IA64_PCREL64LSB: rtype = R_IA64_PCREL64LSB; break;
510
511 case BFD_RELOC_IA64_LTOFF_FPTR22: rtype = R_IA64_LTOFF_FPTR22; break;
512 case BFD_RELOC_IA64_LTOFF_FPTR64I: rtype = R_IA64_LTOFF_FPTR64I; break;
a4bd8390
JW		 513 case BFD_RELOC_IA64_LTOFF_FPTR32MSB: rtype = R_IA64_LTOFF_FPTR32MSB; break;
514 case BFD_RELOC_IA64_LTOFF_FPTR32LSB: rtype = R_IA64_LTOFF_FPTR32LSB; break;
800eeca4
JW		 515 case BFD_RELOC_IA64_LTOFF_FPTR64MSB: rtype = R_IA64_LTOFF_FPTR64MSB; break;
516 case BFD_RELOC_IA64_LTOFF_FPTR64LSB: rtype = R_IA64_LTOFF_FPTR64LSB; break;
517
800eeca4
JW		 518 case BFD_RELOC_IA64_SEGREL32MSB: rtype = R_IA64_SEGREL32MSB; break;
519 case BFD_RELOC_IA64_SEGREL32LSB: rtype = R_IA64_SEGREL32LSB; break;
520 case BFD_RELOC_IA64_SEGREL64MSB: rtype = R_IA64_SEGREL64MSB; break;
521 case BFD_RELOC_IA64_SEGREL64LSB: rtype = R_IA64_SEGREL64LSB; break;
522
523 case BFD_RELOC_IA64_SECREL32MSB: rtype = R_IA64_SECREL32MSB; break;
524 case BFD_RELOC_IA64_SECREL32LSB: rtype = R_IA64_SECREL32LSB; break;
525 case BFD_RELOC_IA64_SECREL64MSB: rtype = R_IA64_SECREL64MSB; break;
526 case BFD_RELOC_IA64_SECREL64LSB: rtype = R_IA64_SECREL64LSB; break;
527
528 case BFD_RELOC_IA64_REL32MSB: rtype = R_IA64_REL32MSB; break;
529 case BFD_RELOC_IA64_REL32LSB: rtype = R_IA64_REL32LSB; break;
530 case BFD_RELOC_IA64_REL64MSB: rtype = R_IA64_REL64MSB; break;
531 case BFD_RELOC_IA64_REL64LSB: rtype = R_IA64_REL64LSB; break;
532
533 case BFD_RELOC_IA64_LTV32MSB: rtype = R_IA64_LTV32MSB; break;
534 case BFD_RELOC_IA64_LTV32LSB: rtype = R_IA64_LTV32LSB; break;
535 case BFD_RELOC_IA64_LTV64MSB: rtype = R_IA64_LTV64MSB; break;
536 case BFD_RELOC_IA64_LTV64LSB: rtype = R_IA64_LTV64LSB; break;
537
538 case BFD_RELOC_IA64_IPLTMSB: rtype = R_IA64_IPLTMSB; break;
539 case BFD_RELOC_IA64_IPLTLSB: rtype = R_IA64_IPLTLSB; break;
800eeca4
JW		 540 case BFD_RELOC_IA64_COPY: rtype = R_IA64_COPY; break;
541 case BFD_RELOC_IA64_LTOFF22X: rtype = R_IA64_LTOFF22X; break;
542 case BFD_RELOC_IA64_LDXMOV: rtype = R_IA64_LDXMOV; break;
543
544 case BFD_RELOC_IA64_TPREL22: rtype = R_IA64_TPREL22; break;
545 case BFD_RELOC_IA64_TPREL64MSB: rtype = R_IA64_TPREL64MSB; break;
546 case BFD_RELOC_IA64_TPREL64LSB: rtype = R_IA64_TPREL64LSB; break;
547 case BFD_RELOC_IA64_LTOFF_TP22: rtype = R_IA64_LTOFF_TP22; break;
548
549 default: return 0;
550 }
551 return lookup_howto (rtype);
552}
553
554/* Given a ELF reloc, return the matching HOWTO structure. */
555
556static void
bbe66d08 557elfNN_ia64_info_to_howto (abfd, bfd_reloc, elf_reloc)
64bf6ae6 558 bfd *abfd ATTRIBUTE_UNUSED;
800eeca4 559 arelent *bfd_reloc;
bbe66d08 560 ElfNN_Internal_Rela *elf_reloc;
800eeca4 561{
dc810e39
AM		 562 bfd_reloc->howto
563 = lookup_howto ((unsigned int) ELFNN_R_TYPE (elf_reloc->r_info));
800eeca4
JW		 564}
565\f
566#define PLT_HEADER_SIZE (3 * 16)
567#define PLT_MIN_ENTRY_SIZE (1 * 16)
568#define PLT_FULL_ENTRY_SIZE (2 * 16)
569#define PLT_RESERVED_WORDS 3
570
571static const bfd_byte plt_header[PLT_HEADER_SIZE] =
572{
573 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
574 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
575 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
576 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
577 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
578 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
579 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
580 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
581 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
582};
583
584static const bfd_byte plt_min_entry[PLT_MIN_ENTRY_SIZE] =
585{
586 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
587 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
588 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
589};
590
591static const bfd_byte plt_full_entry[PLT_FULL_ENTRY_SIZE] =
592{
593 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
594 0x00, 0x41, 0x3c, 0x30, 0x28, 0xc0, /* ld8 r16=[r15],8 */
595 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
596 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
597 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
598 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
599};
600
601#define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
7b6dab7f
TW		 602#define AIX_DYNAMIC_INTERPRETER "/usr/lib/ia64l64/libc.so.1"
603#define DYNAMIC_INTERPRETER(abfd) \
604 (elfNN_ia64_aix_vec (abfd->xvec) ? AIX_DYNAMIC_INTERPRETER : ELF_DYNAMIC_INTERPRETER)
748abff6
RH		 605
606/* Select out of range branch fixup type. Note that Itanium does
607 not support brl, and so it gets emulated by the kernel. */
608#undef USE_BRL
609
610static const bfd_byte oor_brl[16] =
611{
612 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
613 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
614 0x00, 0x00, 0x00, 0xc0
615};
616
617static const bfd_byte oor_ip[48] =
618{
619 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
620 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
621 0x01, 0x00, 0x00, 0x60,
622 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
623 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
624 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
625 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
626 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
627 0x60, 0x00, 0x80, 0x00 /* br b6;; */
628};
629\f
630/* These functions do relaxation for IA-64 ELF.
631
632 This is primarily to support branches to targets out of range;
633 relaxation of R_IA64_LTOFF22X and R_IA64_LDXMOV not yet supported. */
634
635static boolean
bbe66d08 636elfNN_ia64_relax_section (abfd, sec, link_info, again)
748abff6
RH		 637 bfd *abfd;
638 asection *sec;
639 struct bfd_link_info *link_info;
640 boolean *again;
641{
642 struct one_fixup
643 {
644 struct one_fixup *next;
645 asection *tsec;
646 bfd_vma toff;
647 bfd_vma trampoff;
648 };
649
650 Elf_Internal_Shdr *symtab_hdr;
9ad5cbcf 651 Elf_Internal_Shdr *shndx_hdr;
748abff6 652 Elf_Internal_Rela *internal_relocs;
64bf6ae6 653 Elf_Internal_Rela *free_relocs = NULL;
748abff6
RH		 654 Elf_Internal_Rela *irel, *irelend;
655 bfd_byte *contents;
64bf6ae6 656 bfd_byte *free_contents = NULL;
bbe66d08 657 ElfNN_External_Sym *extsyms;
64bf6ae6 658 ElfNN_External_Sym *free_extsyms = NULL;
9ad5cbcf 659 Elf_External_Sym_Shndx *shndx_buf = NULL;
bbe66d08 660 struct elfNN_ia64_link_hash_table *ia64_info;
748abff6
RH		 661 struct one_fixup *fixups = NULL;
662 boolean changed_contents = false;
663 boolean changed_relocs = false;
664
46f5aac8
KH		 665 /* Assume we're not going to change any sizes, and we'll only need
666 one pass. */
748abff6
RH		 667 *again = false;
668
669 /* Nothing to do if there are no relocations. */
670 if ((sec->flags & SEC_RELOC) == 0
671 || sec->reloc_count == 0)
672 return true;
673
674 /* If this is the first time we have been called for this section,
675 initialize the cooked size. */
676 if (sec->_cooked_size == 0)
677 sec->_cooked_size = sec->_raw_size;
678
679 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
680
681 /* Load the relocations for this section. */
bbe66d08 682 internal_relocs = (_bfd_elfNN_link_read_relocs
748abff6
RH		 683 (abfd, sec, (PTR) NULL, (Elf_Internal_Rela *) NULL,
684 link_info->keep_memory));
685 if (internal_relocs == NULL)
686 goto error_return;
64bf6ae6 687
748abff6
RH		 688 if (! link_info->keep_memory)
689 free_relocs = internal_relocs;
690
bbe66d08 691 ia64_info = elfNN_ia64_hash_table (link_info);
748abff6
RH		 692 irelend = internal_relocs + sec->reloc_count;
693
694 for (irel = internal_relocs; irel < irelend; irel++)
bbe66d08 695 if (ELFNN_R_TYPE (irel->r_info) == (int) R_IA64_PCREL21B)
748abff6
RH		 696 break;
697
698 /* No branch-type relocations. */
699 if (irel == irelend)
700 {
701 if (free_relocs != NULL)
702 free (free_relocs);
703 return true;
704 }
705
706 /* Get the section contents. */
748abff6
RH		 707 if (elf_section_data (sec)->this_hdr.contents != NULL)
708 contents = elf_section_data (sec)->this_hdr.contents;
709 else
710 {
711 contents = (bfd_byte *) bfd_malloc (sec->_raw_size);
712 if (contents == NULL)
713 goto error_return;
714 free_contents = contents;
715
716 if (! bfd_get_section_contents (abfd, sec, contents,
717 (file_ptr) 0, sec->_raw_size))
718 goto error_return;
719 }
720
9ad5cbcf 721 /* Read this BFD's local symbols. */
748abff6 722 if (symtab_hdr->contents != NULL)
bbe66d08 723 extsyms = (ElfNN_External_Sym *) symtab_hdr->contents;
748abff6
RH		 724 else
725 {
9ad5cbcf
AM		 726 bfd_size_type amt;
727
728 amt = symtab_hdr->sh_info * sizeof (ElfNN_External_Sym);
729 extsyms = (ElfNN_External_Sym *) bfd_malloc (amt);
748abff6
RH		 730 if (extsyms == NULL)
731 goto error_return;
732 free_extsyms = extsyms;
733 if (bfd_seek (abfd, symtab_hdr->sh_offset, SEEK_SET) != 0
9ad5cbcf
AM		 734 || bfd_bread (extsyms, amt, abfd) != amt)
735 goto error_return;
736 }
737
738 shndx_hdr = &elf_tdata (abfd)->symtab_shndx_hdr;
739 if (shndx_hdr->sh_size != 0)
740 {
741 bfd_size_type amt;
742
743 amt = symtab_hdr->sh_info * sizeof (Elf_External_Sym_Shndx);
744 shndx_buf = (Elf_External_Sym_Shndx *) bfd_malloc (amt);
745 if (shndx_buf == NULL)
746 goto error_return;
747 if (bfd_seek (abfd, shndx_hdr->sh_offset, SEEK_SET) != 0
748 || bfd_bread (shndx_buf, amt, abfd) != amt)
748abff6
RH		 749 goto error_return;
750 }
751
752 for (; irel < irelend; irel++)
753 {
754 bfd_vma symaddr, reladdr, trampoff, toff, roff;
755 Elf_Internal_Sym isym;
756 asection *tsec;
757 struct one_fixup *f;
dc810e39 758 bfd_size_type amt;
748abff6 759
bbe66d08 760 if (ELFNN_R_TYPE (irel->r_info) != (int) R_IA64_PCREL21B)
748abff6
RH		 761 continue;
762
763 /* Get the value of the symbol referred to by the reloc. */
bbe66d08 764 if (ELFNN_R_SYM (irel->r_info) < symtab_hdr->sh_info)
748abff6 765 {
9ad5cbcf
AM		 766 ElfNN_External_Sym *esym;
767 Elf_External_Sym_Shndx *shndx;
768
748abff6 769 /* A local symbol. */
9ad5cbcf
AM		 770 esym = extsyms + ELFNN_R_SYM (irel->r_info);
771 shndx = shndx_buf + (shndx_buf ? ELFNN_R_SYM (irel->r_info) : 0);
772 bfd_elfNN_swap_symbol_in (abfd, esym, shndx, &isym);
748abff6
RH		 773 if (isym.st_shndx == SHN_UNDEF)
774 continue; /* We can't do anthing with undefined symbols. */
775 else if (isym.st_shndx == SHN_ABS)
776 tsec = bfd_abs_section_ptr;
777 else if (isym.st_shndx == SHN_COMMON)
778 tsec = bfd_com_section_ptr;
d9cf1b54
AM		 779 else if (isym.st_shndx == SHN_IA_64_ANSI_COMMON)
780 tsec = bfd_com_section_ptr;
3e932841 781 else
9ad5cbcf 782 tsec = bfd_section_from_elf_index (abfd, isym.st_shndx);
748abff6
RH		 783
784 toff = isym.st_value;
785 }
786 else
787 {
788 unsigned long indx;
789 struct elf_link_hash_entry *h;
bbe66d08 790 struct elfNN_ia64_dyn_sym_info *dyn_i;
748abff6 791
bbe66d08 792 indx = ELFNN_R_SYM (irel->r_info) - symtab_hdr->sh_info;
748abff6
RH		 793 h = elf_sym_hashes (abfd)[indx];
794 BFD_ASSERT (h != NULL);
795
796 while (h->root.type == bfd_link_hash_indirect
797 || h->root.type == bfd_link_hash_warning)
798 h = (struct elf_link_hash_entry *) h->root.u.i.link;
799
800 dyn_i = get_dyn_sym_info (ia64_info, h, abfd, irel, false);
801
802 /* For branches to dynamic symbols, we're interested instead
803 in a branch to the PLT entry. */
804 if (dyn_i && dyn_i->want_plt2)
805 {
806 tsec = ia64_info->plt_sec;
807 toff = dyn_i->plt2_offset;
808 }
809 else
810 {
811 /* We can't do anthing with undefined symbols. */
812 if (h->root.type == bfd_link_hash_undefined
813 || h->root.type == bfd_link_hash_undefweak)
814 continue;
815
816 tsec = h->root.u.def.section;
817 toff = h->root.u.def.value;
818 }
819 }
820
821 symaddr = (tsec->output_section->vma
822 + tsec->output_offset
823 + toff
824 + irel->r_addend);
825
826 roff = irel->r_offset;
827 reladdr = (sec->output_section->vma
828 + sec->output_offset
dc810e39 829 + roff) & (bfd_vma) -4;
748abff6
RH		 830
831 /* If the branch is in range, no need to do anything. */
832 if ((bfd_signed_vma) (symaddr - reladdr) >= -0x1000000
833 && (bfd_signed_vma) (symaddr - reladdr) <= 0x0FFFFF0)
834 continue;
835
836 /* If the branch and target are in the same section, you've
837 got one honking big section and we can't help you. You'll
838 get an error message later. */
839 if (tsec == sec)
840 continue;
841
842 /* Look for an existing fixup to this address. */
843 for (f = fixups; f ; f = f->next)
844 if (f->tsec == tsec && f->toff == toff)
845 break;
846
847 if (f == NULL)
848 {
849 /* Two alternatives: If it's a branch to a PLT entry, we can
850 make a copy of the FULL_PLT entry. Otherwise, we'll have
851 to use a `brl' insn to get where we're going. */
852
dc810e39 853 size_t size;
748abff6
RH		 854
855 if (tsec == ia64_info->plt_sec)
856 size = sizeof (plt_full_entry);
857 else
858 {
859#ifdef USE_BRL
860 size = sizeof (oor_brl);
861#else
862 size = sizeof (oor_ip);
863#endif
864 }
865
866 /* Resize the current section to make room for the new branch. */
dc810e39
AM		 867 trampoff = (sec->_cooked_size + 15) & (bfd_vma) -16;
868 amt = trampoff + size;
869 contents = (bfd_byte *) bfd_realloc (contents, amt);
748abff6
RH		 870 if (contents == NULL)
871 goto error_return;
dc810e39 872 sec->_cooked_size = amt;
748abff6
RH		 873
874 if (tsec == ia64_info->plt_sec)
875 {
876 memcpy (contents + trampoff, plt_full_entry, size);
877
878 /* Hijack the old relocation for use as the PLTOFF reloc. */
bbe66d08 879 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
748abff6
RH		 880 R_IA64_PLTOFF22);
881 irel->r_offset = trampoff;
882 }
883 else
884 {
885#ifdef USE_BRL
886 memcpy (contents + trampoff, oor_brl, size);
bbe66d08 887 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
748abff6
RH		 888 R_IA64_PCREL60B);
889 irel->r_offset = trampoff + 2;
890#else
891 memcpy (contents + trampoff, oor_ip, size);
bbe66d08 892 irel->r_info = ELFNN_R_INFO (ELFNN_R_SYM (irel->r_info),
748abff6
RH		 893 R_IA64_PCREL64I);
894 irel->r_addend -= 16;
895 irel->r_offset = trampoff + 2;
896#endif
897 }
898
899 /* Record the fixup so we don't do it again this section. */
dc810e39 900 f = (struct one_fixup *) bfd_malloc ((bfd_size_type) sizeof (*f));
748abff6
RH		 901 f->next = fixups;
902 f->tsec = tsec;
903 f->toff = toff;
904 f->trampoff = trampoff;
905 fixups = f;
906 }
907 else
908 {
909 /* Nop out the reloc, since we're finalizing things here. */
bbe66d08 910 irel->r_info = ELFNN_R_INFO (0, R_IA64_NONE);
748abff6
RH		 911 }
912
913 /* Fix up the existing branch to hit the trampoline. Hope like
914 hell this doesn't overflow too. */
bbe66d08 915 if (elfNN_ia64_install_value (abfd, contents + roff,
dc810e39 916 f->trampoff - (roff & (bfd_vma) -4),
748abff6
RH		 917 R_IA64_PCREL21B) != bfd_reloc_ok)
918 goto error_return;
919
920 changed_contents = true;
921 changed_relocs = true;
922 }
923
924 /* Clean up and go home. */
925 while (fixups)
926 {
927 struct one_fixup *f = fixups;
928 fixups = fixups->next;
929 free (f);
930 }
931
932 if (changed_relocs)
933 elf_section_data (sec)->relocs = internal_relocs;
934 else if (free_relocs != NULL)
935 free (free_relocs);
936
937 if (changed_contents)
938 elf_section_data (sec)->this_hdr.contents = contents;
939 else if (free_contents != NULL)
940 {
941 if (! link_info->keep_memory)
942 free (free_contents);
943 else
944 {
945 /* Cache the section contents for elf_link_input_bfd. */
946 elf_section_data (sec)->this_hdr.contents = contents;
947 }
948 }
949
9ad5cbcf
AM		 950 if (shndx_buf != NULL)
951 free (shndx_buf);
952
748abff6
RH		 953 if (free_extsyms != NULL)
954 {
955 if (! link_info->keep_memory)
956 free (free_extsyms);
957 else
958 {
959 /* Cache the symbols for elf_link_input_bfd. */
973ffd63 960 symtab_hdr->contents = (unsigned char *) extsyms;
748abff6
RH		 961 }
962 }
963
964 *again = changed_contents || changed_relocs;
965 return true;
966
967 error_return:
968 if (free_relocs != NULL)
969 free (free_relocs);
970 if (free_contents != NULL)
971 free (free_contents);
9ad5cbcf
AM		 972 if (shndx_buf != NULL)
973 free (shndx_buf);
748abff6
RH		 974 if (free_extsyms != NULL)
975 free (free_extsyms);
976 return false;
977}
800eeca4 978\f
81545d45
RH		 979/* Return true if NAME is an unwind table section name. */
980
981static inline boolean
d9cf1b54
AM		 982is_unwind_section_name (abfd, name)
983 bfd *abfd;
81545d45
RH		 984 const char *name;
985{
579f31ac 986 size_t len1, len2, len3;
81545d45 987
d9cf1b54
AM		 988 if (elfNN_ia64_hpux_vec (abfd->xvec)
989 && !strcmp (name, ELF_STRING_ia64_unwind_hdr))
990 return false;
991
81545d45
RH		 992 len1 = sizeof (ELF_STRING_ia64_unwind) - 1;
993 len2 = sizeof (ELF_STRING_ia64_unwind_info) - 1;
579f31ac
JJ		 994 len3 = sizeof (ELF_STRING_ia64_unwind_once) - 1;
995 return ((strncmp (name, ELF_STRING_ia64_unwind, len1) == 0
996 && strncmp (name, ELF_STRING_ia64_unwind_info, len2) != 0)
997 || strncmp (name, ELF_STRING_ia64_unwind_once, len3) == 0);
81545d45
RH		 998}
999
800eeca4
JW		 1000/* Handle an IA-64 specific section when reading an object file. This
1001 is called when elfcode.h finds a section with an unknown type. */
1002
1003static boolean
bbe66d08 1004elfNN_ia64_section_from_shdr (abfd, hdr, name)
800eeca4 1005 bfd *abfd;
bbe66d08 1006 ElfNN_Internal_Shdr *hdr;
800eeca4
JW		 1007 char *name;
1008{
1009 asection *newsect;
1010
1011 /* There ought to be a place to keep ELF backend specific flags, but
1012 at the moment there isn't one. We just keep track of the
1013 sections by their name, instead. Fortunately, the ABI gives
1014 suggested names for all the MIPS specific sections, so we will
1015 probably get away with this. */
1016 switch (hdr->sh_type)
1017 {
1018 case SHT_IA_64_UNWIND:
d9cf1b54 1019 case SHT_IA_64_HP_OPT_ANOT:
800eeca4
JW		 1020 break;
1021
1022 case SHT_IA_64_EXT:
1023 if (strcmp (name, ELF_STRING_ia64_archext) != 0)
1024 return false;
1025 break;
1026
1027 default:
1028 return false;
1029 }
1030
1031 if (! _bfd_elf_make_section_from_shdr (abfd, hdr, name))
1032 return false;
1033 newsect = hdr->bfd_section;
1034
fa152c49
JW		 1035 return true;
1036}
1037
1038/* Convert IA-64 specific section flags to bfd internal section flags. */
1039
1040/* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
1041 flag. */
1042
1043static boolean
bbe66d08 1044elfNN_ia64_section_flags (flags, hdr)
fa152c49 1045 flagword *flags;
bbe66d08 1046 ElfNN_Internal_Shdr *hdr;
fa152c49 1047{
800eeca4 1048 if (hdr->sh_flags & SHF_IA_64_SHORT)
fa152c49 1049 *flags |= SEC_SMALL_DATA;
800eeca4
JW		 1050
1051 return true;
1052}
1053
1054/* Set the correct type for an IA-64 ELF section. We do this by the
1055 section name, which is a hack, but ought to work. */
1056
1057static boolean
bbe66d08 1058elfNN_ia64_fake_sections (abfd, hdr, sec)
64bf6ae6 1059 bfd *abfd ATTRIBUTE_UNUSED;
bbe66d08 1060 ElfNN_Internal_Shdr *hdr;
800eeca4
JW		 1061 asection *sec;
1062{
1063 register const char *name;
1064
1065 name = bfd_get_section_name (abfd, sec);
1066
d9cf1b54 1067 if (is_unwind_section_name (abfd, name))
81545d45
RH		 1068 {
1069 /* We don't have the sections numbered at this point, so sh_info
1070 is set later, in elfNN_ia64_final_write_processing. */
1071 hdr->sh_type = SHT_IA_64_UNWIND;
1072 hdr->sh_flags |= SHF_LINK_ORDER;
1073 }
800eeca4
JW		 1074 else if (strcmp (name, ELF_STRING_ia64_archext) == 0)
1075 hdr->sh_type = SHT_IA_64_EXT;
d9cf1b54
AM		 1076 else if (strcmp (name, ".HP.opt_annot") == 0)
1077 hdr->sh_type = SHT_IA_64_HP_OPT_ANOT;
800eeca4
JW		 1078 else if (strcmp (name, ".reloc") == 0)
1079 /*
1080 * This is an ugly, but unfortunately necessary hack that is
1081 * needed when producing EFI binaries on IA-64. It tells
1082 * elf.c:elf_fake_sections() not to consider ".reloc" as a section
1083 * containing ELF relocation info. We need this hack in order to
1084 * be able to generate ELF binaries that can be translated into
1085 * EFI applications (which are essentially COFF objects). Those
bbe66d08 1086 * files contain a COFF ".reloc" section inside an ELFNN object,
800eeca4
JW		 1087 * which would normally cause BFD to segfault because it would
1088 * attempt to interpret this section as containing relocation
1089 * entries for section "oc". With this hack enabled, ".reloc"
1090 * will be treated as a normal data section, which will avoid the
bbe66d08 1091 * segfault. However, you won't be able to create an ELFNN binary
800eeca4
JW		 1092 * with a section named "oc" that needs relocations, but that's
1093 * the kind of ugly side-effects you get when detecting section
1094 * types based on their names... In practice, this limitation is
1095 * unlikely to bite.
1096 */
1097 hdr->sh_type = SHT_PROGBITS;
1098
1099 if (sec->flags & SEC_SMALL_DATA)
1100 hdr->sh_flags |= SHF_IA_64_SHORT;
1101
1102 return true;
1103}
1104
81545d45
RH		 1105/* The final processing done just before writing out an IA-64 ELF
1106 object file. */
1107
1108static void
1109elfNN_ia64_final_write_processing (abfd, linker)
1110 bfd *abfd;
1111 boolean linker ATTRIBUTE_UNUSED;
1112{
1113 Elf_Internal_Shdr *hdr;
1114 const char *sname;
1115 asection *text_sect, *s;
1116 size_t len;
1117
1118 for (s = abfd->sections; s; s = s->next)
1119 {
1120 hdr = &elf_section_data (s)->this_hdr;
1121 switch (hdr->sh_type)
1122 {
1123 case SHT_IA_64_UNWIND:
1124 /* See comments in gas/config/tc-ia64.c:dot_endp on why we
1125 have to do this. */
1126 sname = bfd_get_section_name (abfd, s);
1127 len = sizeof (ELF_STRING_ia64_unwind) - 1;
1128 if (sname && strncmp (sname, ELF_STRING_ia64_unwind, len) == 0)
1129 {
1130 sname += len;
1131
1132 if (sname[0] == '\0')
1133 /* .IA_64.unwind -> .text */
1134 text_sect = bfd_get_section_by_name (abfd, ".text");
1135 else
1136 /* .IA_64.unwindFOO -> FOO */
1137 text_sect = bfd_get_section_by_name (abfd, sname);
1138 }
579f31ac
JJ		 1139 else if (sname
1140 && (len = sizeof (ELF_STRING_ia64_unwind_once) - 1,
1141 strncmp (sname, ELF_STRING_ia64_unwind_once, len)) == 0)
1142 {
1143 /* .gnu.linkonce.ia64unw.FOO -> .gnu.linkonce.t.FOO */
1144 size_t len2 = sizeof (".gnu.linkonce.t.") - 1;
fcf12726 1145 char *once_name = bfd_malloc (len2 + strlen (sname + len) + 1);
579f31ac 1146
fcf12726
AM		 1147 if (once_name != NULL)
1148 {
1149 memcpy (once_name, ".gnu.linkonce.t.", len2);
1150 strcpy (once_name + len2, sname + len);
1151 text_sect = bfd_get_section_by_name (abfd, once_name);
1152 free (once_name);
1153 }
1154 else
1155 /* Should only happen if we run out of memory, in
1156 which case we're probably toast anyway. Try to
1157 cope by finding the section the slow way. */
1158 for (text_sect = abfd->sections;
1159 text_sect != NULL;
1160 text_sect = text_sect->next)
1161 {
1162 if (strncmp (bfd_section_name (abfd, text_sect),
1163 ".gnu.linkonce.t.", len2) == 0
1164 && strcmp (bfd_section_name (abfd, text_sect) + len2,
1165 sname + len) == 0)
1166 break;
1167 }
579f31ac 1168 }
81545d45
RH		 1169 else
1170 /* last resort: fall back on .text */
1171 text_sect = bfd_get_section_by_name (abfd, ".text");
1172
1173 if (text_sect)
1174 {
1175 /* The IA-64 processor-specific ABI requires setting
1176 sh_link to the unwind section, whereas HP-UX requires
1177 sh_info to do so. For maximum compatibility, we'll
1178 set both for now... */
1179 hdr->sh_link = elf_section_data (text_sect)->this_idx;
1180 hdr->sh_info = elf_section_data (text_sect)->this_idx;
1181 }
1182 break;
1183 }
1184 }
1185}
1186
800eeca4
JW		 1187/* Hook called by the linker routine which adds symbols from an object
1188 file. We use it to put .comm items in .sbss, and not .bss. */
1189
1190static boolean
bbe66d08 1191elfNN_ia64_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
800eeca4
JW		 1192 bfd *abfd;
1193 struct bfd_link_info *info;
1194 const Elf_Internal_Sym *sym;
64bf6ae6
JW		 1195 const char **namep ATTRIBUTE_UNUSED;
1196 flagword *flagsp ATTRIBUTE_UNUSED;
800eeca4
JW		 1197 asection **secp;
1198 bfd_vma *valp;
1199{
1200 if (sym->st_shndx == SHN_COMMON
1201 && !info->relocateable
c0846b23 1202 && sym->st_size <= elf_gp_size (abfd))
800eeca4
JW		 1203 {
1204 /* Common symbols less than or equal to -G nn bytes are
1205 automatically put into .sbss. */
1206
1207 asection *scomm = bfd_get_section_by_name (abfd, ".scommon");
1208
1209 if (scomm == NULL)
1210 {
1211 scomm = bfd_make_section (abfd, ".scommon");
1212 if (scomm == NULL
1213 || !bfd_set_section_flags (abfd, scomm, (SEC_ALLOC
1214 | SEC_IS_COMMON
1215 | SEC_LINKER_CREATED)))
1216 return false;
1217 }
1218
1219 *secp = scomm;
1220 *valp = sym->st_size;
1221 }
1222
1223 return true;
1224}
1225
7b6dab7f
TW		 1226static boolean
1227elfNN_ia64_aix_vec (const bfd_target *vec)
1228{
1229 extern const bfd_target bfd_elfNN_ia64_aix_little_vec;
1230 extern const bfd_target bfd_elfNN_ia64_aix_big_vec;
1231
dc810e39 1232 return (/**/vec == & bfd_elfNN_ia64_aix_little_vec
7b6dab7f
TW		 1233 || vec == & bfd_elfNN_ia64_aix_big_vec);
1234}
1235
1236/* Hook called by the linker routine which adds symbols from an object
1237 file. We use it to handle OS-specific symbols. */
1238
1239static boolean
1240elfNN_ia64_aix_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
1241 bfd *abfd;
1242 struct bfd_link_info *info;
1243 const Elf_Internal_Sym *sym;
1244 const char **namep;
1245 flagword *flagsp;
1246 asection **secp;
1247 bfd_vma *valp;
1248{
1249 if (strcmp (*namep, "__GLOB_DATA_PTR") == 0)
1250 {
64e9ece0
TW		 1251 /* Define __GLOB_DATA_PTR when it is encountered. This is expected to
1252 be a linker-defined symbol by the Aix C runtime startup code. IBM sez
1253 no one else should use it b/c it is undocumented. */
7b6dab7f
TW		 1254 struct elf_link_hash_entry *h;
1255
0a991dfe
AM		 1256 h = elf_link_hash_lookup (elf_hash_table (info), *namep,
1257 false, false, false);
dc810e39 1258 if (h == NULL)
7b6dab7f
TW		 1259 {
1260 struct elf_backend_data *bed;
1261 struct elfNN_ia64_link_hash_table *ia64_info;
1262
1263 bed = get_elf_backend_data (abfd);
1264 ia64_info = elfNN_ia64_hash_table (info);
dc810e39 1265
7b6dab7f 1266 if (!(_bfd_generic_link_add_one_symbol
dc810e39 1267 (info, abfd, *namep, BSF_GLOBAL,
64e9ece0 1268 bfd_get_section_by_name (abfd, ".bss"),
7b6dab7f
TW		 1269 bed->got_symbol_offset, (const char *) NULL, false,
1270 bed->collect, (struct bfd_link_hash_entry **) &h)))
1271 return false;
dc810e39 1272
7b6dab7f
TW		 1273 h->elf_link_hash_flags |= ELF_LINK_HASH_DEF_REGULAR;
1274 h->type = STT_OBJECT;
dc810e39 1275
64e9ece0 1276 if (! _bfd_elf_link_record_dynamic_symbol (info, h))
7b6dab7f
TW		 1277 return false;
1278 }
1279
1280 return true;
1281 }
1282 else if (sym->st_shndx == SHN_LOOS)
1283 {
9ad5cbcf 1284 unsigned int i;
dc810e39 1285
10d1e03a
TW		 1286 /* SHN_AIX_SYSCALL: Treat this as any other symbol. The special symbol
1287 is only relevant when compiling code for extended system calls.
dc810e39 1288 Replace the "special" section with .text, if possible.
64e9ece0 1289 Note that these symbols are always assumed to be in .text. */
9ad5cbcf 1290 for (i = 1; i < elf_numsections (abfd); i++)
7b6dab7f 1291 {
9ad5cbcf 1292 asection * sec = bfd_section_from_elf_index (abfd, i);
dc810e39 1293
7b6dab7f
TW		 1294 if (sec && strcmp (sec->name, ".text") == 0)
1295 {
1296 *secp = sec;
1297 break;
1298 }
1299 }
1300
7b6dab7f
TW		 1301 if (*secp == NULL)
1302 *secp = bfd_abs_section_ptr;
dc810e39 1303
7b6dab7f 1304 *valp = sym->st_size;
dc810e39 1305
7b6dab7f
TW		 1306 return true;
1307 }
dc810e39 1308 else
7b6dab7f 1309 {
dc810e39 1310 return elfNN_ia64_add_symbol_hook (abfd, info, sym,
7b6dab7f
TW		 1311 namep, flagsp, secp, valp);
1312 }
1313}
1314
1315boolean
1316elfNN_ia64_aix_link_add_symbols (abfd, info)
1317 bfd *abfd;
1318 struct bfd_link_info *info;
1319{
1320 /* Make sure dynamic sections are always created. */
1321 if (! elf_hash_table (info)->dynamic_sections_created
1322 && abfd->xvec == info->hash->creator)
1323 {
1324 if (! bfd_elfNN_link_create_dynamic_sections (abfd, info))
1325 return false;
1326 }
1327
1328 /* Now do the standard call. */
1329 return bfd_elfNN_bfd_link_add_symbols (abfd, info);
1330}
1331
800eeca4
JW		 1332/* Return the number of additional phdrs we will need. */
1333
1334static int
bbe66d08 1335elfNN_ia64_additional_program_headers (abfd)
800eeca4
JW		 1336 bfd *abfd;
1337{
1338 asection *s;
1339 int ret = 0;
1340
1341 /* See if we need a PT_IA_64_ARCHEXT segment. */
1342 s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1343 if (s && (s->flags & SEC_LOAD))
1344 ++ret;
1345
81545d45
RH		 1346 /* Count how many PT_IA_64_UNWIND segments we need. */
1347 for (s = abfd->sections; s; s = s->next)
d9cf1b54 1348 if (is_unwind_section_name (abfd, s->name) && (s->flags & SEC_LOAD))
81545d45 1349 ++ret;
800eeca4
JW		 1350
1351 return ret;
1352}
1353
1354static boolean
bbe66d08 1355elfNN_ia64_modify_segment_map (abfd)
800eeca4
JW		 1356 bfd *abfd;
1357{
1358 struct elf_segment_map *m, **pm;
81545d45 1359 Elf_Internal_Shdr *hdr;
800eeca4 1360 asection *s;
d9cf1b54
AM		 1361 boolean unwind_found;
1362 asection *unwind_sec;
800eeca4
JW		 1363
1364 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1365 all PT_LOAD segments. */
1366 s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_archext);
1367 if (s && (s->flags & SEC_LOAD))
1368 {
1369 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
1370 if (m->p_type == PT_IA_64_ARCHEXT)
1371 break;
1372 if (m == NULL)
1373 {
dc810e39
AM		 1374 m = ((struct elf_segment_map *)
1375 bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
800eeca4
JW		 1376 if (m == NULL)
1377 return false;
1378
1379 m->p_type = PT_IA_64_ARCHEXT;
1380 m->count = 1;
1381 m->sections[0] = s;
1382
1383 /* We want to put it after the PHDR and INTERP segments. */
1384 pm = &elf_tdata (abfd)->segment_map;
1385 while (*pm != NULL
1386 && ((*pm)->p_type == PT_PHDR
1387 || (*pm)->p_type == PT_INTERP))
1388 pm = &(*pm)->next;
1389
1390 m->next = *pm;
1391 *pm = m;
1392 }
1393 }
1394
81545d45
RH		 1395 /* Install PT_IA_64_UNWIND segments, if needed. */
1396 for (s = abfd->sections; s; s = s->next)
800eeca4 1397 {
81545d45
RH		 1398 hdr = &elf_section_data (s)->this_hdr;
1399 if (hdr->sh_type != SHT_IA_64_UNWIND)
1400 continue;
1401
1402 if (s && (s->flags & SEC_LOAD))
800eeca4 1403 {
81545d45 1404 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
d9cf1b54
AM		 1405 if (m->p_type == PT_IA_64_UNWIND)
1406 {
1407 /* Look through all sections in the unwind segment
1408 for a match since there may be multiple sections
1409 to a segment. */
1410
1411 unwind_sec = m->sections[0];
1412 unwind_found = false;
1413 while (unwind_sec != NULL && !unwind_found)
1414 {
1415 if (unwind_sec == s)
1416 unwind_found = true;
1417 else
1418 unwind_sec = unwind_sec -> next;
1419 }
1420 if (unwind_found)
1421 break;
1422 }
81545d45 1423
800eeca4 1424 if (m == NULL)
81545d45 1425 {
dc810e39
AM		 1426 m = ((struct elf_segment_map *)
1427 bfd_zalloc (abfd, (bfd_size_type) sizeof *m));
81545d45
RH		 1428 if (m == NULL)
1429 return false;
800eeca4 1430
81545d45
RH		 1431 m->p_type = PT_IA_64_UNWIND;
1432 m->count = 1;
1433 m->sections[0] = s;
1434 m->next = NULL;
800eeca4 1435
81545d45
RH		 1436 /* We want to put it last. */
1437 pm = &elf_tdata (abfd)->segment_map;
1438 while (*pm != NULL)
1439 pm = &(*pm)->next;
1440 *pm = m;
1441 }
800eeca4
JW		 1442 }
1443 }
1444
1445 /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1446 the input sections for each output section in the segment and testing
1447 for SHF_IA_64_NORECOV on each. */
1448 for (m = elf_tdata (abfd)->segment_map; m != NULL; m = m->next)
1449 if (m->p_type == PT_LOAD)
1450 {
1451 int i;
1452 for (i = m->count - 1; i >= 0; --i)
1453 {
1454 struct bfd_link_order *order = m->sections[i]->link_order_head;
1455 while (order)
1456 {
1457 if (order->type == bfd_indirect_link_order)
1458 {
1459 asection *is = order->u.indirect.section;
1460 bfd_vma flags = elf_section_data(is)->this_hdr.sh_flags;
1461 if (flags & SHF_IA_64_NORECOV)
1462 {
1463 m->p_flags |= PF_IA_64_NORECOV;
1464 goto found;
1465 }
1466 }
1467 order = order->next;
1468 }
1469 }
1470 found:;
1471 }
1472
1473 return true;
1474}
1475
800eeca4
JW		 1476/* According to the Tahoe assembler spec, all labels starting with a
1477 '.' are local. */
1478
1479static boolean
bbe66d08 1480elfNN_ia64_is_local_label_name (abfd, name)
64bf6ae6 1481 bfd *abfd ATTRIBUTE_UNUSED;
800eeca4
JW		 1482 const char *name;
1483{
1484 return name[0] == '.';
1485}
1486
1487/* Should we do dynamic things to this symbol? */
1488
1489static boolean
bbe66d08 1490elfNN_ia64_dynamic_symbol_p (h, info)
800eeca4
JW		 1491 struct elf_link_hash_entry *h;
1492 struct bfd_link_info *info;
1493{
1494 if (h == NULL)
1495 return false;
1496
1497 while (h->root.type == bfd_link_hash_indirect
1498 || h->root.type == bfd_link_hash_warning)
1499 h = (struct elf_link_hash_entry *) h->root.u.i.link;
1500
1501 if (h->dynindx == -1)
1502 return false;
2719f880
L		 1503 switch (ELF_ST_VISIBILITY (h->other))
1504 {
1505 case STV_INTERNAL:
1506 case STV_HIDDEN:
1507 return false;
1508 }
800eeca4
JW		 1509
1510 if (h->root.type == bfd_link_hash_undefweak
1511 || h->root.type == bfd_link_hash_defweak)
1512 return true;
1513
671bae9c 1514 if ((info->shared && (!info->symbolic || info->allow_shlib_undefined))
800eeca4
JW		 1515 || ((h->elf_link_hash_flags
1516 & (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR))
1517 == (ELF_LINK_HASH_DEF_DYNAMIC | ELF_LINK_HASH_REF_REGULAR)))
1518 return true;
1519
1520 return false;
1521}
1522\f
1523static boolean
bbe66d08
JW		 1524elfNN_ia64_local_hash_table_init (ht, abfd, new)
1525 struct elfNN_ia64_local_hash_table *ht;
64bf6ae6 1526 bfd *abfd ATTRIBUTE_UNUSED;
800eeca4
JW		 1527 new_hash_entry_func new;
1528{
3e932841 1529 memset (ht, 0, sizeof (*ht));
800eeca4
JW		 1530 return bfd_hash_table_init (&ht->root, new);
1531}
1532
1533static struct bfd_hash_entry*
bbe66d08 1534elfNN_ia64_new_loc_hash_entry (entry, table, string)
800eeca4
JW		 1535 struct bfd_hash_entry *entry;
1536 struct bfd_hash_table *table;
1537 const char *string;
1538{
bbe66d08
JW		 1539 struct elfNN_ia64_local_hash_entry *ret;
1540 ret = (struct elfNN_ia64_local_hash_entry *) entry;
800eeca4
JW		 1541
1542 /* Allocate the structure if it has not already been allocated by a
1543 subclass. */
1544 if (!ret)
1545 ret = bfd_hash_allocate (table, sizeof (*ret));
1546
1547 if (!ret)
1548 return 0;
1549
1550 /* Initialize our local data. All zeros, and definitely easier
1551 than setting a handful of bit fields. */
3e932841 1552 memset (ret, 0, sizeof (*ret));
800eeca4
JW		 1553
1554 /* Call the allocation method of the superclass. */
bbe66d08 1555 ret = ((struct elfNN_ia64_local_hash_entry *)
800eeca4
JW		 1556 bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
1557
1558 return (struct bfd_hash_entry *) ret;
1559}
1560
1561static struct bfd_hash_entry*
bbe66d08 1562elfNN_ia64_new_elf_hash_entry (entry, table, string)
800eeca4
JW		 1563 struct bfd_hash_entry *entry;
1564 struct bfd_hash_table *table;
1565 const char *string;
1566{
bbe66d08
JW		 1567 struct elfNN_ia64_link_hash_entry *ret;
1568 ret = (struct elfNN_ia64_link_hash_entry *) entry;
800eeca4
JW		 1569
1570 /* Allocate the structure if it has not already been allocated by a
1571 subclass. */
1572 if (!ret)
1573 ret = bfd_hash_allocate (table, sizeof (*ret));
1574
1575 if (!ret)
1576 return 0;
1577
1578 /* Initialize our local data. All zeros, and definitely easier
1579 than setting a handful of bit fields. */
3e932841 1580 memset (ret, 0, sizeof (*ret));
800eeca4
JW		 1581
1582 /* Call the allocation method of the superclass. */
bbe66d08 1583 ret = ((struct elfNN_ia64_link_hash_entry *)
800eeca4
JW		 1584 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry *) ret,
1585 table, string));
1586
1587 return (struct bfd_hash_entry *) ret;
1588}
1589
1590static void
bbe66d08 1591elfNN_ia64_hash_copy_indirect (xdir, xind)
800eeca4
JW		 1592 struct elf_link_hash_entry *xdir, *xind;
1593{
bbe66d08 1594 struct elfNN_ia64_link_hash_entry *dir, *ind;
800eeca4 1595
57c7194e
AM		 1596 dir = (struct elfNN_ia64_link_hash_entry *) xdir;
1597 ind = (struct elfNN_ia64_link_hash_entry *) xind;
800eeca4 1598
3e932841 1599 /* Copy down any references that we may have already seen to the
800eeca4
JW		 1600 symbol which just became indirect. */
1601
1602 dir->root.elf_link_hash_flags |=
1603 (ind->root.elf_link_hash_flags
1604 & (ELF_LINK_HASH_REF_DYNAMIC
1605 | ELF_LINK_HASH_REF_REGULAR
1606 | ELF_LINK_HASH_REF_REGULAR_NONWEAK));
1607
1e370bd2 1608 if (ind->root.root.type != bfd_link_hash_indirect)
0a991dfe
AM		 1609 return;
1610
800eeca4
JW		 1611 /* Copy over the got and plt data. This would have been done
1612 by check_relocs. */
1613
1614 if (dir->info == NULL)
1615 {
bbe66d08 1616 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 1617
1618 dir->info = dyn_i = ind->info;
1619 ind->info = NULL;
1620
1621 /* Fix up the dyn_sym_info pointers to the global symbol. */
1622 for (; dyn_i; dyn_i = dyn_i->next)
1623 dyn_i->h = &dir->root;
1624 }
1625 BFD_ASSERT (ind->info == NULL);
1626
1627 /* Copy over the dynindx. */
1628
1629 if (dir->root.dynindx == -1)
1630 {
1631 dir->root.dynindx = ind->root.dynindx;
1632 dir->root.dynstr_index = ind->root.dynstr_index;
1633 ind->root.dynindx = -1;
1634 ind->root.dynstr_index = 0;
1635 }
1636 BFD_ASSERT (ind->root.dynindx == -1);
1637}
1638
1639static void
e5094212
AM		 1640elfNN_ia64_hash_hide_symbol (info, xh, force_local)
1641 struct bfd_link_info *info;
800eeca4 1642 struct elf_link_hash_entry *xh;
e5094212 1643 boolean force_local;
800eeca4 1644{
bbe66d08
JW		 1645 struct elfNN_ia64_link_hash_entry *h;
1646 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4 1647
bbe66d08 1648 h = (struct elfNN_ia64_link_hash_entry *)xh;
800eeca4 1649
e5094212 1650 _bfd_elf_link_hash_hide_symbol (info, &h->root, force_local);
800eeca4
JW		 1651
1652 for (dyn_i = h->info; dyn_i; dyn_i = dyn_i->next)
1653 dyn_i->want_plt2 = 0;
1654}
1655
1656/* Create the derived linker hash table. The IA-64 ELF port uses this
1657 derived hash table to keep information specific to the IA-64 ElF
1658 linker (without using static variables). */
1659
1660static struct bfd_link_hash_table*
bbe66d08 1661elfNN_ia64_hash_table_create (abfd)
800eeca4
JW		 1662 bfd *abfd;
1663{
bbe66d08 1664 struct elfNN_ia64_link_hash_table *ret;
800eeca4 1665
dc810e39 1666 ret = bfd_zalloc (abfd, (bfd_size_type) sizeof (*ret));
800eeca4
JW		 1667 if (!ret)
1668 return 0;
1669 if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
bbe66d08 1670 elfNN_ia64_new_elf_hash_entry))
800eeca4
JW		 1671 {
1672 bfd_release (abfd, ret);
1673 return 0;
1674 }
1675
bbe66d08
JW		 1676 if (!elfNN_ia64_local_hash_table_init (&ret->loc_hash_table, abfd,
1677 elfNN_ia64_new_loc_hash_entry))
800eeca4
JW		 1678 return 0;
1679 return &ret->root.root;
1680}
1681
1682/* Look up an entry in a Alpha ELF linker hash table. */
1683
bbe66d08
JW		 1684static INLINE struct elfNN_ia64_local_hash_entry *
1685elfNN_ia64_local_hash_lookup(table, string, create, copy)
1686 struct elfNN_ia64_local_hash_table *table;
800eeca4
JW		 1687 const char *string;
1688 boolean create, copy;
1689{
bbe66d08 1690 return ((struct elfNN_ia64_local_hash_entry *)
800eeca4
JW		 1691 bfd_hash_lookup (&table->root, string, create, copy));
1692}
1693
1694/* Traverse both local and global hash tables. */
1695
bbe66d08 1696struct elfNN_ia64_dyn_sym_traverse_data
800eeca4 1697{
bbe66d08 1698 boolean (*func) PARAMS ((struct elfNN_ia64_dyn_sym_info *, PTR));
800eeca4
JW		 1699 PTR data;
1700};
1701
1702static boolean
bbe66d08 1703elfNN_ia64_global_dyn_sym_thunk (xentry, xdata)
800eeca4
JW		 1704 struct bfd_hash_entry *xentry;
1705 PTR xdata;
1706{
bbe66d08
JW		 1707 struct elfNN_ia64_link_hash_entry *entry
1708 = (struct elfNN_ia64_link_hash_entry *) xentry;
1709 struct elfNN_ia64_dyn_sym_traverse_data *data
1710 = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1711 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4 1712
e92d460e
AM		 1713 if (entry->root.root.type == bfd_link_hash_warning)
1714 entry = (struct elfNN_ia64_link_hash_entry *) entry->root.root.u.i.link;
1715
800eeca4
JW		 1716 for (dyn_i = entry->info; dyn_i; dyn_i = dyn_i->next)
1717 if (! (*data->func) (dyn_i, data->data))
1718 return false;
1719 return true;
1720}
1721
1722static boolean
bbe66d08 1723elfNN_ia64_local_dyn_sym_thunk (xentry, xdata)
800eeca4
JW		 1724 struct bfd_hash_entry *xentry;
1725 PTR xdata;
1726{
bbe66d08
JW		 1727 struct elfNN_ia64_local_hash_entry *entry
1728 = (struct elfNN_ia64_local_hash_entry *) xentry;
1729 struct elfNN_ia64_dyn_sym_traverse_data *data
1730 = (struct elfNN_ia64_dyn_sym_traverse_data *) xdata;
1731 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 1732
1733 for (dyn_i = entry->info; dyn_i; dyn_i = dyn_i->next)
1734 if (! (*data->func) (dyn_i, data->data))
1735 return false;
1736 return true;
1737}
1738
1739static void
bbe66d08
JW		 1740elfNN_ia64_dyn_sym_traverse (ia64_info, func, data)
1741 struct elfNN_ia64_link_hash_table *ia64_info;
1742 boolean (*func) PARAMS ((struct elfNN_ia64_dyn_sym_info *, PTR));
800eeca4
JW		 1743 PTR data;
1744{
bbe66d08 1745 struct elfNN_ia64_dyn_sym_traverse_data xdata;
800eeca4
JW		 1746
1747 xdata.func = func;
1748 xdata.data = data;
1749
1750 elf_link_hash_traverse (&ia64_info->root,
bbe66d08 1751 elfNN_ia64_global_dyn_sym_thunk, &xdata);
800eeca4 1752 bfd_hash_traverse (&ia64_info->loc_hash_table.root,
bbe66d08 1753 elfNN_ia64_local_dyn_sym_thunk, &xdata);
800eeca4
JW		 1754}
1755\f
1756static boolean
bbe66d08 1757elfNN_ia64_create_dynamic_sections (abfd, info)
800eeca4
JW		 1758 bfd *abfd;
1759 struct bfd_link_info *info;
1760{
bbe66d08 1761 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW		 1762 asection *s;
1763
1764 if (! _bfd_elf_create_dynamic_sections (abfd, info))
1765 return false;
1766
bbe66d08 1767 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW		 1768
1769 ia64_info->plt_sec = bfd_get_section_by_name (abfd, ".plt");
1770 ia64_info->got_sec = bfd_get_section_by_name (abfd, ".got");
1771
1772 {
1773 flagword flags = bfd_get_section_flags (abfd, ia64_info->got_sec);
1774 bfd_set_section_flags (abfd, ia64_info->got_sec, SEC_SMALL_DATA | flags);
1775 }
1776
1777 if (!get_pltoff (abfd, info, ia64_info))
1778 return false;
1779
1780 s = bfd_make_section(abfd, ".rela.IA_64.pltoff");
1781 if (s == NULL
1782 || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
1783 | SEC_HAS_CONTENTS
1784 | SEC_IN_MEMORY
1785 | SEC_LINKER_CREATED
1786 | SEC_READONLY))
1787 || !bfd_set_section_alignment (abfd, s, 3))
1788 return false;
1789 ia64_info->rel_pltoff_sec = s;
1790
1791 s = bfd_make_section(abfd, ".rela.got");
1792 if (s == NULL
1793 || !bfd_set_section_flags (abfd, s, (SEC_ALLOC | SEC_LOAD
1794 | SEC_HAS_CONTENTS
1795 | SEC_IN_MEMORY
1796 | SEC_LINKER_CREATED
1797 | SEC_READONLY))
1798 || !bfd_set_section_alignment (abfd, s, 3))
1799 return false;
1800 ia64_info->rel_got_sec = s;
1801
1802 return true;
1803}
1804
f7460f5f
JJ		 1805/* Find and/or create a hash entry for local symbol. */
1806static struct elfNN_ia64_local_hash_entry *
1807get_local_sym_hash (ia64_info, abfd, rel, create)
1808 struct elfNN_ia64_link_hash_table *ia64_info;
1809 bfd *abfd;
1810 const Elf_Internal_Rela *rel;
1811 boolean create;
1812{
1813 char *addr_name;
1814 size_t len;
fcf12726 1815 struct elfNN_ia64_local_hash_entry *ret;
f7460f5f
JJ		 1816
1817 /* Construct a string for use in the elfNN_ia64_local_hash_table.
1818 name describes what was once anonymous memory. */
1819
1820 len = sizeof (void*)*2 + 1 + sizeof (bfd_vma)*4 + 1 + 1;
1821 len += 10; /* %p slop */
1822
fcf12726
AM		 1823 addr_name = bfd_malloc (len);
1824 if (addr_name == NULL)
1825 return 0;
f7460f5f
JJ		 1826 sprintf (addr_name, "%p:%lx",
1827 (void *) abfd, (unsigned long) ELFNN_R_SYM (rel->r_info));
1828
1829 /* Collect the canonical entry data for this address. */
fcf12726
AM		 1830 ret = elfNN_ia64_local_hash_lookup (&ia64_info->loc_hash_table,
1831 addr_name, create, create);
1832 free (addr_name);
1833 return ret;
f7460f5f
JJ		 1834}
1835
800eeca4
JW		 1836/* Find and/or create a descriptor for dynamic symbol info. This will
1837 vary based on global or local symbol, and the addend to the reloc. */
1838
bbe66d08 1839static struct elfNN_ia64_dyn_sym_info *
800eeca4 1840get_dyn_sym_info (ia64_info, h, abfd, rel, create)
bbe66d08 1841 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW		 1842 struct elf_link_hash_entry *h;
1843 bfd *abfd;
1844 const Elf_Internal_Rela *rel;
1845 boolean create;
1846{
bbe66d08
JW		 1847 struct elfNN_ia64_dyn_sym_info **pp;
1848 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4 1849 bfd_vma addend = rel ? rel->r_addend : 0;
3e932841 1850
800eeca4 1851 if (h)
bbe66d08 1852 pp = &((struct elfNN_ia64_link_hash_entry *)h)->info;
800eeca4
JW		 1853 else
1854 {
bbe66d08 1855 struct elfNN_ia64_local_hash_entry *loc_h;
800eeca4 1856
f7460f5f 1857 loc_h = get_local_sym_hash (ia64_info, abfd, rel, create);
800eeca4
JW		 1858 BFD_ASSERT (loc_h);
1859
1860 pp = &loc_h->info;
3e932841 1861 }
800eeca4
JW		 1862
1863 for (dyn_i = *pp; dyn_i && dyn_i->addend != addend; dyn_i = *pp)
1864 pp = &dyn_i->next;
1865
1866 if (dyn_i == NULL && create)
1867 {
dc810e39
AM		 1868 dyn_i = ((struct elfNN_ia64_dyn_sym_info *)
1869 bfd_zalloc (abfd, (bfd_size_type) sizeof *dyn_i));
800eeca4
JW		 1870 *pp = dyn_i;
1871 dyn_i->addend = addend;
1872 }
1873
1874 return dyn_i;
1875}
1876
1877static asection *
1878get_got (abfd, info, ia64_info)
1879 bfd *abfd;
1880 struct bfd_link_info *info;
bbe66d08 1881 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4 1882{
64bf6ae6 1883 asection *got;
800eeca4
JW		 1884 bfd *dynobj;
1885
1886 got = ia64_info->got_sec;
1887 if (!got)
1888 {
1889 flagword flags;
1890
1891 dynobj = ia64_info->root.dynobj;
1892 if (!dynobj)
1893 ia64_info->root.dynobj = dynobj = abfd;
1894 if (!_bfd_elf_create_got_section (dynobj, info))
1895 return 0;
1896
1897 got = bfd_get_section_by_name (dynobj, ".got");
1898 BFD_ASSERT (got);
1899 ia64_info->got_sec = got;
1900
1901 flags = bfd_get_section_flags (abfd, got);
1902 bfd_set_section_flags (abfd, got, SEC_SMALL_DATA | flags);
1903 }
1904
1905 return got;
1906}
1907
1908/* Create function descriptor section (.opd). This section is called .opd
1909 because it contains "official prodecure descriptors". The "official"
1910 refers to the fact that these descriptors are used when taking the address
1911 of a procedure, thus ensuring a unique address for each procedure. */
1912
1913static asection *
1914get_fptr (abfd, info, ia64_info)
1915 bfd *abfd;
64bf6ae6 1916 struct bfd_link_info *info ATTRIBUTE_UNUSED;
bbe66d08 1917 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW		 1918{
1919 asection *fptr;
1920 bfd *dynobj;
1921
1922 fptr = ia64_info->fptr_sec;
1923 if (!fptr)
1924 {
1925 dynobj = ia64_info->root.dynobj;
1926 if (!dynobj)
1927 ia64_info->root.dynobj = dynobj = abfd;
1928
1929 fptr = bfd_make_section (dynobj, ".opd");
1930 if (!fptr
1931 || !bfd_set_section_flags (dynobj, fptr,
1932 (SEC_ALLOC
1933 | SEC_LOAD
1934 | SEC_HAS_CONTENTS
1935 | SEC_IN_MEMORY
1936 | SEC_READONLY
1937 | SEC_LINKER_CREATED))
1938 || !bfd_set_section_alignment (abfd, fptr, 4))
1939 {
1940 BFD_ASSERT (0);
1941 return NULL;
1942 }
1943
1944 ia64_info->fptr_sec = fptr;
1945 }
1946
1947 return fptr;
1948}
1949
1950static asection *
1951get_pltoff (abfd, info, ia64_info)
1952 bfd *abfd;
64bf6ae6 1953 struct bfd_link_info *info ATTRIBUTE_UNUSED;
bbe66d08 1954 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW		 1955{
1956 asection *pltoff;
1957 bfd *dynobj;
1958
1959 pltoff = ia64_info->pltoff_sec;
1960 if (!pltoff)
1961 {
1962 dynobj = ia64_info->root.dynobj;
1963 if (!dynobj)
1964 ia64_info->root.dynobj = dynobj = abfd;
1965
1966 pltoff = bfd_make_section (dynobj, ELF_STRING_ia64_pltoff);
1967 if (!pltoff
1968 || !bfd_set_section_flags (dynobj, pltoff,
1969 (SEC_ALLOC
1970 | SEC_LOAD
1971 | SEC_HAS_CONTENTS
1972 | SEC_IN_MEMORY
1973 | SEC_SMALL_DATA
1974 | SEC_LINKER_CREATED))
1975 || !bfd_set_section_alignment (abfd, pltoff, 4))
1976 {
1977 BFD_ASSERT (0);
1978 return NULL;
1979 }
1980
1981 ia64_info->pltoff_sec = pltoff;
1982 }
1983
1984 return pltoff;
1985}
1986
1987static asection *
1988get_reloc_section (abfd, ia64_info, sec, create)
1989 bfd *abfd;
bbe66d08 1990 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW		 1991 asection *sec;
1992 boolean create;
1993{
1994 const char *srel_name;
1995 asection *srel;
1996 bfd *dynobj;
1997
1998 srel_name = (bfd_elf_string_from_elf_section
1999 (abfd, elf_elfheader(abfd)->e_shstrndx,
2000 elf_section_data(sec)->rel_hdr.sh_name));
2001 if (srel_name == NULL)
2002 return NULL;
2003
2004 BFD_ASSERT ((strncmp (srel_name, ".rela", 5) == 0
2005 && strcmp (bfd_get_section_name (abfd, sec),
2006 srel_name+5) == 0)
2007 || (strncmp (srel_name, ".rel", 4) == 0
2008 && strcmp (bfd_get_section_name (abfd, sec),
2009 srel_name+4) == 0));
2010
2011 dynobj = ia64_info->root.dynobj;
2012 if (!dynobj)
2013 ia64_info->root.dynobj = dynobj = abfd;
2014
2015 srel = bfd_get_section_by_name (dynobj, srel_name);
2016 if (srel == NULL && create)
2017 {
2018 srel = bfd_make_section (dynobj, srel_name);
2019 if (srel == NULL
2020 || !bfd_set_section_flags (dynobj, srel,
2021 (SEC_ALLOC
2022 | SEC_LOAD
2023 | SEC_HAS_CONTENTS
2024 | SEC_IN_MEMORY
2025 | SEC_LINKER_CREATED
2026 | SEC_READONLY))
2027 || !bfd_set_section_alignment (dynobj, srel, 3))
2028 return NULL;
2029 }
2030
db6751f2
JJ		 2031 if (sec->flags & SEC_READONLY)
2032 ia64_info->reltext = 1;
2033
800eeca4
JW		 2034 return srel;
2035}
2036
2037static boolean
2038count_dyn_reloc (abfd, dyn_i, srel, type)
2039 bfd *abfd;
bbe66d08 2040 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 2041 asection *srel;
2042 int type;
2043{
bbe66d08 2044 struct elfNN_ia64_dyn_reloc_entry *rent;
800eeca4
JW		 2045
2046 for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2047 if (rent->srel == srel && rent->type == type)
2048 break;
2049
2050 if (!rent)
2051 {
dc810e39
AM		 2052 rent = ((struct elfNN_ia64_dyn_reloc_entry *)
2053 bfd_alloc (abfd, (bfd_size_type) sizeof (*rent)));
800eeca4
JW		 2054 if (!rent)
2055 return false;
2056
2057 rent->next = dyn_i->reloc_entries;
2058 rent->srel = srel;
2059 rent->type = type;
2060 rent->count = 0;
2061 dyn_i->reloc_entries = rent;
2062 }
2063 rent->count++;
2064
2065 return true;
2066}
2067
2068static boolean
bbe66d08 2069elfNN_ia64_check_relocs (abfd, info, sec, relocs)
800eeca4
JW		 2070 bfd *abfd;
2071 struct bfd_link_info *info;
2072 asection *sec;
2073 const Elf_Internal_Rela *relocs;
2074{
bbe66d08 2075 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW		 2076 const Elf_Internal_Rela *relend;
2077 Elf_Internal_Shdr *symtab_hdr;
2078 const Elf_Internal_Rela *rel;
2079 asection *got, *fptr, *srel;
2080
2081 if (info->relocateable)
2082 return true;
2083
2084 symtab_hdr = &elf_tdata (abfd)->symtab_hdr;
bbe66d08 2085 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW		 2086
2087 got = fptr = srel = NULL;
2088
2089 relend = relocs + sec->reloc_count;
2090 for (rel = relocs; rel < relend; ++rel)
2091 {
2092 enum {
2093 NEED_GOT = 1,
2094 NEED_FPTR = 2,
2095 NEED_PLTOFF = 4,
2096 NEED_MIN_PLT = 8,
2097 NEED_FULL_PLT = 16,
2098 NEED_DYNREL = 32,
2099 NEED_LTOFF_FPTR = 64,
2100 };
2101
2102 struct elf_link_hash_entry *h = NULL;
bbe66d08
JW		 2103 unsigned long r_symndx = ELFNN_R_SYM (rel->r_info);
2104 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 2105 int need_entry;
2106 boolean maybe_dynamic;
64bf6ae6 2107 int dynrel_type = R_IA64_NONE;
800eeca4
JW		 2108
2109 if (r_symndx >= symtab_hdr->sh_info)
2110 {
2111 /* We're dealing with a global symbol -- find its hash entry
2112 and mark it as being referenced. */
2113 long indx = r_symndx - symtab_hdr->sh_info;
2114 h = elf_sym_hashes (abfd)[indx];
2115 while (h->root.type == bfd_link_hash_indirect
2116 || h->root.type == bfd_link_hash_warning)
2117 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2118
2119 h->elf_link_hash_flags |= ELF_LINK_HASH_REF_REGULAR;
2120 }
2121
2122 /* We can only get preliminary data on whether a symbol is
2123 locally or externally defined, as not all of the input files
2124 have yet been processed. Do something with what we know, as
2125 this may help reduce memory usage and processing time later. */
2126 maybe_dynamic = false;
671bae9c
NC		 2127 if (h && ((info->shared
2128 && (!info->symbolic || info->allow_shlib_undefined))
800eeca4 2129 || ! (h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR)
7b6dab7f
TW		 2130 || h->root.type == bfd_link_hash_defweak
2131 || elfNN_ia64_aix_vec (abfd->xvec)))
800eeca4
JW		 2132 maybe_dynamic = true;
2133
2134 need_entry = 0;
bbe66d08 2135 switch (ELFNN_R_TYPE (rel->r_info))
800eeca4
JW		 2136 {
2137 case R_IA64_TPREL22:
2138 case R_IA64_TPREL64MSB:
2139 case R_IA64_TPREL64LSB:
2140 case R_IA64_LTOFF_TP22:
2141 return false;
2142
2143 case R_IA64_LTOFF_FPTR22:
2144 case R_IA64_LTOFF_FPTR64I:
a4bd8390
JW		 2145 case R_IA64_LTOFF_FPTR32MSB:
2146 case R_IA64_LTOFF_FPTR32LSB:
800eeca4
JW		 2147 case R_IA64_LTOFF_FPTR64MSB:
2148 case R_IA64_LTOFF_FPTR64LSB:
2149 need_entry = NEED_FPTR | NEED_GOT | NEED_LTOFF_FPTR;
2150 break;
2151
2152 case R_IA64_FPTR64I:
2153 case R_IA64_FPTR32MSB:
2154 case R_IA64_FPTR32LSB:
2155 case R_IA64_FPTR64MSB:
2156 case R_IA64_FPTR64LSB:
64e9ece0 2157 if (info->shared || h || elfNN_ia64_aix_vec (abfd->xvec))
800eeca4
JW		 2158 need_entry = NEED_FPTR | NEED_DYNREL;
2159 else
2160 need_entry = NEED_FPTR;
2161 dynrel_type = R_IA64_FPTR64LSB;
2162 break;
2163
2164 case R_IA64_LTOFF22:
2165 case R_IA64_LTOFF22X:
2166 case R_IA64_LTOFF64I:
2167 need_entry = NEED_GOT;
2168 break;
2169
2170 case R_IA64_PLTOFF22:
2171 case R_IA64_PLTOFF64I:
2172 case R_IA64_PLTOFF64MSB:
2173 case R_IA64_PLTOFF64LSB:
2174 need_entry = NEED_PLTOFF;
2175 if (h)
2176 {
2177 if (maybe_dynamic)
2178 need_entry |= NEED_MIN_PLT;
2179 }
2180 else
2181 {
2182 (*info->callbacks->warning)
2183 (info, _("@pltoff reloc against local symbol"), 0,
dc810e39 2184 abfd, 0, (bfd_vma) 0);
800eeca4
JW		 2185 }
2186 break;
2187
2188 case R_IA64_PCREL21B:
748abff6 2189 case R_IA64_PCREL60B:
800eeca4
JW		 2190 /* Depending on where this symbol is defined, we may or may not
2191 need a full plt entry. Only skip if we know we'll not need
2192 the entry -- static or symbolic, and the symbol definition
2193 has already been seen. */
2194 if (maybe_dynamic && rel->r_addend == 0)
2195 need_entry = NEED_FULL_PLT;
2196 break;
2197
2198 case R_IA64_IMM14:
2199 case R_IA64_IMM22:
2200 case R_IA64_IMM64:
2201 case R_IA64_DIR32MSB:
2202 case R_IA64_DIR32LSB:
2203 case R_IA64_DIR64MSB:
2204 case R_IA64_DIR64LSB:
2205 /* Shared objects will always need at least a REL relocation. */
7b6dab7f 2206 if (info->shared || maybe_dynamic
7b6dab7f 2207 || (elfNN_ia64_aix_vec (abfd->xvec)
64e9ece0 2208 && (!h || strcmp (h->root.root.string,
7b6dab7f 2209 "__GLOB_DATA_PTR") != 0)))
800eeca4
JW		 2210 need_entry = NEED_DYNREL;
2211 dynrel_type = R_IA64_DIR64LSB;
2212 break;
2213
18b27f17
RH		 2214 case R_IA64_IPLTMSB:
2215 case R_IA64_IPLTLSB:
2216 /* Shared objects will always need at least a REL relocation. */
2217 if (info->shared || maybe_dynamic)
2218 need_entry = NEED_DYNREL;
2219 dynrel_type = R_IA64_IPLTLSB;
2220 break;
2221
748abff6
RH		 2222 case R_IA64_PCREL22:
2223 case R_IA64_PCREL64I:
800eeca4
JW		 2224 case R_IA64_PCREL32MSB:
2225 case R_IA64_PCREL32LSB:
2226 case R_IA64_PCREL64MSB:
2227 case R_IA64_PCREL64LSB:
2228 if (maybe_dynamic)
2229 need_entry = NEED_DYNREL;
2230 dynrel_type = R_IA64_PCREL64LSB;
2231 break;
2232 }
2233
2234 if (!need_entry)
2235 continue;
2236
2237 if ((need_entry & NEED_FPTR) != 0
2238 && rel->r_addend)
2239 {
2240 (*info->callbacks->warning)
2241 (info, _("non-zero addend in @fptr reloc"), 0,
dc810e39 2242 abfd, 0, (bfd_vma) 0);
800eeca4
JW		 2243 }
2244
2245 dyn_i = get_dyn_sym_info (ia64_info, h, abfd, rel, true);
2246
2247 /* Record whether or not this is a local symbol. */
2248 dyn_i->h = h;
2249
2250 /* Create what's needed. */
2251 if (need_entry & NEED_GOT)
2252 {
2253 if (!got)
2254 {
2255 got = get_got (abfd, info, ia64_info);
2256 if (!got)
2257 return false;
2258 }
2259 dyn_i->want_got = 1;
2260 }
2261 if (need_entry & NEED_FPTR)
2262 {
2263 if (!fptr)
2264 {
2265 fptr = get_fptr (abfd, info, ia64_info);
2266 if (!fptr)
2267 return false;
2268 }
2269
2270 /* FPTRs for shared libraries are allocated by the dynamic
2271 linker. Make sure this local symbol will appear in the
2272 dynamic symbol table. */
7b6dab7f
TW		 2273 if (!h && (info->shared
2274 /* AIX also needs one */
2275 || elfNN_ia64_aix_vec (abfd->xvec)))
800eeca4 2276 {
bbe66d08 2277 if (! (_bfd_elfNN_link_record_local_dynamic_symbol
dc810e39 2278 (info, abfd, (long) r_symndx)))
800eeca4
JW		 2279 return false;
2280 }
2281
2282 dyn_i->want_fptr = 1;
2283 }
2284 if (need_entry & NEED_LTOFF_FPTR)
2285 dyn_i->want_ltoff_fptr = 1;
2286 if (need_entry & (NEED_MIN_PLT | NEED_FULL_PLT))
2287 {
2288 if (!ia64_info->root.dynobj)
2289 ia64_info->root.dynobj = abfd;
2290 h->elf_link_hash_flags |= ELF_LINK_HASH_NEEDS_PLT;
2291 dyn_i->want_plt = 1;
2292 }
2293 if (need_entry & NEED_FULL_PLT)
2294 dyn_i->want_plt2 = 1;
2295 if (need_entry & NEED_PLTOFF)
2296 dyn_i->want_pltoff = 1;
2297 if ((need_entry & NEED_DYNREL) && (sec->flags & SEC_ALLOC))
2298 {
2299 if (!srel)
2300 {
2301 srel = get_reloc_section (abfd, ia64_info, sec, true);
2302 if (!srel)
2303 return false;
2304 }
2305 if (!count_dyn_reloc (abfd, dyn_i, srel, dynrel_type))
2306 return false;
2307 }
2308 }
2309
2310 return true;
2311}
2312
bbe66d08 2313struct elfNN_ia64_allocate_data
800eeca4
JW		 2314{
2315 struct bfd_link_info *info;
2316 bfd_size_type ofs;
2317};
2318
2319/* For cleanliness, and potentially faster dynamic loading, allocate
2320 external GOT entries first. */
2321
2322static boolean
2323allocate_global_data_got (dyn_i, data)
bbe66d08 2324 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 2325 PTR data;
2326{
bbe66d08 2327 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4
JW		 2328
2329 if (dyn_i->want_got
2330 && ! dyn_i->want_fptr
7b6dab7f 2331 && (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info)
64e9ece0
TW		 2332 || (elfNN_ia64_aix_vec (x->info->hash->creator)
2333 && (!dyn_i->h || strcmp (dyn_i->h->root.root.string,
2334 "__GLOB_DATA_PTR") != 0))))
800eeca4
JW		 2335 {
2336 dyn_i->got_offset = x->ofs;
2337 x->ofs += 8;
2338 }
2339 return true;
2340}
2341
2342/* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2343
2344static boolean
2345allocate_global_fptr_got (dyn_i, data)
bbe66d08 2346 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 2347 PTR data;
2348{
bbe66d08 2349 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4
JW		 2350
2351 if (dyn_i->want_got
2352 && dyn_i->want_fptr
7b6dab7f
TW		 2353 && (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info)
2354 || elfNN_ia64_aix_vec (x->info->hash->creator)))
800eeca4
JW		 2355 {
2356 dyn_i->got_offset = x->ofs;
2357 x->ofs += 8;
2358 }
2359 return true;
2360}
2361
2362/* Lastly, allocate all the GOT entries for local data. */
2363
2364static boolean
2365allocate_local_got (dyn_i, data)
bbe66d08 2366 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 2367 PTR data;
2368{
bbe66d08 2369 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4
JW		 2370
2371 if (dyn_i->want_got
7b6dab7f
TW		 2372 && ! (elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info)
2373 || elfNN_ia64_aix_vec (x->info->hash->creator)))
800eeca4
JW		 2374 {
2375 dyn_i->got_offset = x->ofs;
2376 x->ofs += 8;
2377 }
2378 return true;
2379}
2380
2381/* Search for the index of a global symbol in it's defining object file. */
2382
dc810e39 2383static long
800eeca4
JW		 2384global_sym_index (h)
2385 struct elf_link_hash_entry *h;
2386{
2387 struct elf_link_hash_entry **p;
2388 bfd *obj;
2389
2390 BFD_ASSERT (h->root.type == bfd_link_hash_defined
2391 || h->root.type == bfd_link_hash_defweak);
2392
2393 obj = h->root.u.def.section->owner;
2394 for (p = elf_sym_hashes (obj); *p != h; ++p)
2395 continue;
2396
2397 return p - elf_sym_hashes (obj) + elf_tdata (obj)->symtab_hdr.sh_info;
2398}
2399
2400/* Allocate function descriptors. We can do these for every function
2401 in a main executable that is not exported. */
2402
2403static boolean
2404allocate_fptr (dyn_i, data)
bbe66d08 2405 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 2406 PTR data;
2407{
bbe66d08 2408 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4
JW		 2409
2410 if (dyn_i->want_fptr)
2411 {
2412 struct elf_link_hash_entry *h = dyn_i->h;
3e932841 2413
800eeca4
JW		 2414 if (h)
2415 while (h->root.type == bfd_link_hash_indirect
2416 || h->root.type == bfd_link_hash_warning)
2417 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2418
7b6dab7f
TW		 2419 if (x->info->shared
2420 /* AIX needs an FPTR in this case. */
2421 || (elfNN_ia64_aix_vec (x->info->hash->creator)
2422 && (!h
2423 || h->root.type == bfd_link_hash_defined
2424 || h->root.type == bfd_link_hash_defweak)))
800eeca4
JW		 2425 {
2426 if (h && h->dynindx == -1)
2427 {
2428 BFD_ASSERT ((h->root.type == bfd_link_hash_defined)
2429 || (h->root.type == bfd_link_hash_defweak));
2430
bbe66d08 2431 if (!_bfd_elfNN_link_record_local_dynamic_symbol
800eeca4
JW		 2432 (x->info, h->root.u.def.section->owner,
2433 global_sym_index (h)))
2434 return false;
2435 }
2436
2437 dyn_i->want_fptr = 0;
2438 }
2439 else if (h == NULL || h->dynindx == -1)
2440 {
2441 dyn_i->fptr_offset = x->ofs;
2442 x->ofs += 16;
2443 }
2444 else
2445 dyn_i->want_fptr = 0;
2446 }
2447 return true;
2448}
2449
2450/* Allocate all the minimal PLT entries. */
2451
2452static boolean
2453allocate_plt_entries (dyn_i, data)
bbe66d08 2454 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 2455 PTR data;
2456{
bbe66d08 2457 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4
JW		 2458
2459 if (dyn_i->want_plt)
2460 {
2461 struct elf_link_hash_entry *h = dyn_i->h;
2462
2463 if (h)
2464 while (h->root.type == bfd_link_hash_indirect
2465 || h->root.type == bfd_link_hash_warning)
2466 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2467
2468 /* ??? Versioned symbols seem to lose ELF_LINK_HASH_NEEDS_PLT. */
bbe66d08 2469 if (elfNN_ia64_dynamic_symbol_p (h, x->info))
800eeca4
JW		 2470 {
2471 bfd_size_type offset = x->ofs;
2472 if (offset == 0)
2473 offset = PLT_HEADER_SIZE;
2474 dyn_i->plt_offset = offset;
2475 x->ofs = offset + PLT_MIN_ENTRY_SIZE;
2476
2477 dyn_i->want_pltoff = 1;
2478 }
2479 else
2480 {
2481 dyn_i->want_plt = 0;
2482 dyn_i->want_plt2 = 0;
2483 }
2484 }
2485 return true;
2486}
2487
2488/* Allocate all the full PLT entries. */
2489
2490static boolean
2491allocate_plt2_entries (dyn_i, data)
bbe66d08 2492 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 2493 PTR data;
2494{
bbe66d08 2495 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4
JW		 2496
2497 if (dyn_i->want_plt2)
2498 {
2499 struct elf_link_hash_entry *h = dyn_i->h;
2500 bfd_size_type ofs = x->ofs;
2501
2502 dyn_i->plt2_offset = ofs;
2503 x->ofs = ofs + PLT_FULL_ENTRY_SIZE;
2504
2505 while (h->root.type == bfd_link_hash_indirect
2506 || h->root.type == bfd_link_hash_warning)
2507 h = (struct elf_link_hash_entry *) h->root.u.i.link;
2508 dyn_i->h->plt.offset = ofs;
2509 }
2510 return true;
2511}
2512
2513/* Allocate all the PLTOFF entries requested by relocations and
2514 plt entries. We can't share space with allocated FPTR entries,
2515 because the latter are not necessarily addressable by the GP.
2516 ??? Relaxation might be able to determine that they are. */
2517
2518static boolean
2519allocate_pltoff_entries (dyn_i, data)
bbe66d08 2520 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 2521 PTR data;
2522{
bbe66d08 2523 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
800eeca4
JW		 2524
2525 if (dyn_i->want_pltoff)
2526 {
2527 dyn_i->pltoff_offset = x->ofs;
2528 x->ofs += 16;
2529 }
2530 return true;
2531}
2532
2533/* Allocate dynamic relocations for those symbols that turned out
2534 to be dynamic. */
2535
2536static boolean
2537allocate_dynrel_entries (dyn_i, data)
bbe66d08 2538 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 2539 PTR data;
2540{
bbe66d08
JW		 2541 struct elfNN_ia64_allocate_data *x = (struct elfNN_ia64_allocate_data *)data;
2542 struct elfNN_ia64_link_hash_table *ia64_info;
2543 struct elfNN_ia64_dyn_reloc_entry *rent;
800eeca4
JW		 2544 boolean dynamic_symbol, shared;
2545
bbe66d08 2546 ia64_info = elfNN_ia64_hash_table (x->info);
7b6dab7f 2547 dynamic_symbol = elfNN_ia64_dynamic_symbol_p (dyn_i->h, x->info)
64e9ece0
TW		 2548 || (elfNN_ia64_aix_vec (x->info->hash->creator)
2549 /* Don't allocate an entry for __GLOB_DATA_PTR */
2550 && (!dyn_i->h || strcmp (dyn_i->h->root.root.string,
2551 "__GLOB_DATA_PTR") != 0));
800eeca4
JW		 2552 shared = x->info->shared;
2553
2554 /* Take care of the normal data relocations. */
2555
2556 for (rent = dyn_i->reloc_entries; rent; rent = rent->next)
2557 {
18b27f17
RH		 2558 int count = rent->count;
2559
800eeca4
JW		 2560 switch (rent->type)
2561 {
2562 case R_IA64_FPTR64LSB:
2563 /* Allocate one iff !want_fptr, which by this point will
2564 be true only if we're actually allocating one statically
2565 in the main executable. */
2566 if (dyn_i->want_fptr)
2567 continue;
2568 break;
2569 case R_IA64_PCREL64LSB:
2570 if (!dynamic_symbol)
2571 continue;
2572 break;
2573 case R_IA64_DIR64LSB:
2574 if (!dynamic_symbol && !shared)
2575 continue;
2576 break;
18b27f17
RH		 2577 case R_IA64_IPLTLSB:
2578 if (!dynamic_symbol && !shared)
2579 continue;
2580 /* Use two REL relocations for IPLT relocations
2581 against local symbols. */
2582 if (!dynamic_symbol)
2583 count *= 2;
2584 break;
2585 default:
2586 abort ();
800eeca4 2587 }
18b27f17 2588 rent->srel->_raw_size += sizeof (ElfNN_External_Rela) * count;
800eeca4
JW		 2589 }
2590
2591 /* Take care of the GOT and PLT relocations. */
2592
2593 if (((dynamic_symbol || shared) && dyn_i->want_got)
2594 || (dyn_i->want_ltoff_fptr && dyn_i->h && dyn_i->h->dynindx != -1))
bbe66d08 2595 ia64_info->rel_got_sec->_raw_size += sizeof (ElfNN_External_Rela);
800eeca4
JW		 2596
2597 if (dyn_i->want_pltoff)
2598 {
2599 bfd_size_type t = 0;
2600
2601 /* Dynamic symbols get one IPLT relocation. Local symbols in
2602 shared libraries get two REL relocations. Local symbols in
2603 main applications get nothing. */
2604 if (dynamic_symbol)
bbe66d08 2605 t = sizeof (ElfNN_External_Rela);
800eeca4 2606 else if (shared)
bbe66d08 2607 t = 2 * sizeof (ElfNN_External_Rela);
800eeca4
JW		 2608
2609 ia64_info->rel_pltoff_sec->_raw_size += t;
2610 }
2611
2612 return true;
2613}
2614
2615static boolean
bbe66d08 2616elfNN_ia64_adjust_dynamic_symbol (info, h)
64bf6ae6 2617 struct bfd_link_info *info ATTRIBUTE_UNUSED;
800eeca4
JW		 2618 struct elf_link_hash_entry *h;
2619{
2620 /* ??? Undefined symbols with PLT entries should be re-defined
2621 to be the PLT entry. */
2622
2623 /* If this is a weak symbol, and there is a real definition, the
2624 processor independent code will have arranged for us to see the
2625 real definition first, and we can just use the same value. */
2626 if (h->weakdef != NULL)
2627 {
2628 BFD_ASSERT (h->weakdef->root.type == bfd_link_hash_defined
2629 || h->weakdef->root.type == bfd_link_hash_defweak);
2630 h->root.u.def.section = h->weakdef->root.u.def.section;
2631 h->root.u.def.value = h->weakdef->root.u.def.value;
2632 return true;
2633 }
2634
2635 /* If this is a reference to a symbol defined by a dynamic object which
2636 is not a function, we might allocate the symbol in our .dynbss section
2637 and allocate a COPY dynamic relocation.
2638
2639 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
2640 of hackery. */
2641
2642 return true;
2643}
2644
2645static boolean
bbe66d08 2646elfNN_ia64_size_dynamic_sections (output_bfd, info)
800eeca4
JW		 2647 bfd *output_bfd;
2648 struct bfd_link_info *info;
2649{
bbe66d08
JW		 2650 struct elfNN_ia64_allocate_data data;
2651 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW		 2652 asection *sec;
2653 bfd *dynobj;
800eeca4
JW		 2654 boolean relplt = false;
2655
2656 dynobj = elf_hash_table(info)->dynobj;
bbe66d08 2657 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW		 2658 BFD_ASSERT(dynobj != NULL);
2659 data.info = info;
2660
2661 /* Set the contents of the .interp section to the interpreter. */
2662 if (ia64_info->root.dynamic_sections_created
2663 && !info->shared)
2664 {
2665 sec = bfd_get_section_by_name (dynobj, ".interp");
2666 BFD_ASSERT (sec != NULL);
7b6dab7f
TW		 2667 sec->contents = (bfd_byte *) DYNAMIC_INTERPRETER (output_bfd);
2668 sec->_raw_size = strlen (DYNAMIC_INTERPRETER (output_bfd)) + 1;
800eeca4
JW		 2669 }
2670
800eeca4
JW		 2671 /* Allocate the GOT entries. */
2672
2673 if (ia64_info->got_sec)
2674 {
2675 data.ofs = 0;
bbe66d08
JW		 2676 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_data_got, &data);
2677 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_global_fptr_got, &data);
2678 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_local_got, &data);
800eeca4
JW		 2679 ia64_info->got_sec->_raw_size = data.ofs;
2680 }
2681
2682 /* Allocate the FPTR entries. */
2683
2684 if (ia64_info->fptr_sec)
2685 {
2686 data.ofs = 0;
bbe66d08 2687 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_fptr, &data);
800eeca4
JW		 2688 ia64_info->fptr_sec->_raw_size = data.ofs;
2689 }
2690
2691 /* Now that we've seen all of the input files, we can decide which
2692 symbols need plt entries. Allocate the minimal PLT entries first.
2693 We do this even though dynamic_sections_created may be false, because
2694 this has the side-effect of clearing want_plt and want_plt2. */
2695
2696 data.ofs = 0;
bbe66d08 2697 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt_entries, &data);
800eeca4
JW		 2698
2699 ia64_info->minplt_entries = 0;
2700 if (data.ofs)
2701 {
2702 ia64_info->minplt_entries
2703 = (data.ofs - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
2704 }
2705
2706 /* Align the pointer for the plt2 entries. */
dc810e39 2707 data.ofs = (data.ofs + 31) & (bfd_vma) -32;
800eeca4 2708
bbe66d08 2709 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_plt2_entries, &data);
800eeca4
JW		 2710 if (data.ofs != 0)
2711 {
2712 BFD_ASSERT (ia64_info->root.dynamic_sections_created);
2713
2714 ia64_info->plt_sec->_raw_size = data.ofs;
2715
2716 /* If we've got a .plt, we need some extra memory for the dynamic
2717 linker. We stuff these in .got.plt. */
2718 sec = bfd_get_section_by_name (dynobj, ".got.plt");
2719 sec->_raw_size = 8 * PLT_RESERVED_WORDS;
2720 }
2721
2722 /* Allocate the PLTOFF entries. */
2723
2724 if (ia64_info->pltoff_sec)
2725 {
2726 data.ofs = 0;
bbe66d08 2727 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_pltoff_entries, &data);
800eeca4
JW		 2728 ia64_info->pltoff_sec->_raw_size = data.ofs;
2729 }
2730
2731 if (ia64_info->root.dynamic_sections_created)
2732 {
2733 /* Allocate space for the dynamic relocations that turned out to be
2734 required. */
2735
bbe66d08 2736 elfNN_ia64_dyn_sym_traverse (ia64_info, allocate_dynrel_entries, &data);
800eeca4
JW		 2737 }
2738
2739 /* We have now determined the sizes of the various dynamic sections.
2740 Allocate memory for them. */
2741 for (sec = dynobj->sections; sec != NULL; sec = sec->next)
2742 {
2743 boolean strip;
2744
2745 if (!(sec->flags & SEC_LINKER_CREATED))
2746 continue;
2747
2748 /* If we don't need this section, strip it from the output file.
2749 There were several sections primarily related to dynamic
2750 linking that must be create before the linker maps input
2751 sections to output sections. The linker does that before
2752 bfd_elf_size_dynamic_sections is called, and it is that
2753 function which decides whether anything needs to go into
2754 these sections. */
2755
2756 strip = (sec->_raw_size == 0);
2757
2758 if (sec == ia64_info->got_sec)
2759 strip = false;
2760 else if (sec == ia64_info->rel_got_sec)
2761 {
2762 if (strip)
2763 ia64_info->rel_got_sec = NULL;
2764 else
2765 /* We use the reloc_count field as a counter if we need to
2766 copy relocs into the output file. */
2767 sec->reloc_count = 0;
2768 }
2769 else if (sec == ia64_info->fptr_sec)
2770 {
2771 if (strip)
2772 ia64_info->fptr_sec = NULL;
2773 }
2774 else if (sec == ia64_info->plt_sec)
2775 {
2776 if (strip)
2777 ia64_info->plt_sec = NULL;
2778 }
2779 else if (sec == ia64_info->pltoff_sec)
2780 {
2781 if (strip)
2782 ia64_info->pltoff_sec = NULL;
2783 }
2784 else if (sec == ia64_info->rel_pltoff_sec)
2785 {
2786 if (strip)
2787 ia64_info->rel_pltoff_sec = NULL;
2788 else
2789 {
2790 relplt = true;
2791 /* We use the reloc_count field as a counter if we need to
2792 copy relocs into the output file. */
2793 sec->reloc_count = 0;
2794 }
2795 }
2796 else
2797 {
2798 const char *name;
2799
2800 /* It's OK to base decisions on the section name, because none
2801 of the dynobj section names depend upon the input files. */
2802 name = bfd_get_section_name (dynobj, sec);
2803
2804 if (strcmp (name, ".got.plt") == 0)
2805 strip = false;
2806 else if (strncmp (name, ".rel", 4) == 0)
2807 {
2808 if (!strip)
2809 {
800eeca4
JW		 2810 /* We use the reloc_count field as a counter if we need to
2811 copy relocs into the output file. */
2812 sec->reloc_count = 0;
2813 }
2814 }
2815 else
2816 continue;
2817 }
2818
2819 if (strip)
2820 _bfd_strip_section_from_output (info, sec);
2821 else
2822 {
2823 /* Allocate memory for the section contents. */
dc810e39 2824 sec->contents = (bfd_byte *) bfd_zalloc (dynobj, sec->_raw_size);
800eeca4
JW		 2825 if (sec->contents == NULL && sec->_raw_size != 0)
2826 return false;
2827 }
2828 }
2829
2830 if (elf_hash_table (info)->dynamic_sections_created)
2831 {
2832 /* Add some entries to the .dynamic section. We fill in the values
2833 later (in finish_dynamic_sections) but we must add the entries now
2834 so that we get the correct size for the .dynamic section. */
2835
2836 if (!info->shared)
2837 {
2838 /* The DT_DEBUG entry is filled in by the dynamic linker and used
2839 by the debugger. */
dc810e39
AM		 2840#define add_dynamic_entry(TAG, VAL) \
2841 bfd_elfNN_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
2842
2843 if (!add_dynamic_entry (DT_DEBUG, 0))
800eeca4
JW		 2844 return false;
2845 }
2846
dc810e39 2847 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE, 0))
800eeca4 2848 return false;
dc810e39 2849 if (!add_dynamic_entry (DT_PLTGOT, 0))
800eeca4
JW		 2850 return false;
2851
2852 if (relplt)
2853 {
dc810e39
AM		 2854 if (!add_dynamic_entry (DT_PLTRELSZ, 0)
2855 || !add_dynamic_entry (DT_PLTREL, DT_RELA)
2856 || !add_dynamic_entry (DT_JMPREL, 0))
800eeca4
JW		 2857 return false;
2858 }
2859
dc810e39
AM		 2860 if (!add_dynamic_entry (DT_RELA, 0)
2861 || !add_dynamic_entry (DT_RELASZ, 0)
2862 || !add_dynamic_entry (DT_RELAENT, sizeof (ElfNN_External_Rela)))
800eeca4
JW		 2863 return false;
2864
db6751f2 2865 if (ia64_info->reltext)
800eeca4 2866 {
dc810e39 2867 if (!add_dynamic_entry (DT_TEXTREL, 0))
800eeca4 2868 return false;
d6cf2879 2869 info->flags |= DF_TEXTREL;
800eeca4
JW		 2870 }
2871 }
2872
2873 /* ??? Perhaps force __gp local. */
2874
2875 return true;
2876}
2877
2878static bfd_reloc_status_type
1e738b87 2879elfNN_ia64_install_value (abfd, hit_addr, v, r_type)
800eeca4
JW		 2880 bfd *abfd;
2881 bfd_byte *hit_addr;
1e738b87 2882 bfd_vma v;
800eeca4
JW		 2883 unsigned int r_type;
2884{
2885 const struct ia64_operand *op;
2886 int bigendian = 0, shift = 0;
2887 bfd_vma t0, t1, insn, dword;
2888 enum ia64_opnd opnd;
2889 const char *err;
2890 size_t size = 8;
1e738b87
NC		 2891#ifdef BFD_HOST_U_64_BIT
2892 BFD_HOST_U_64_BIT val = (BFD_HOST_U_64_BIT) v;
2893#else
2894 bfd_vma val = v;
2895#endif
800eeca4
JW		 2896
2897 opnd = IA64_OPND_NIL;
2898 switch (r_type)
2899 {
2900 case R_IA64_NONE:
2901 case R_IA64_LDXMOV:
2902 return bfd_reloc_ok;
2903
3e932841 2904 /* Instruction relocations. */
800eeca4
JW		 2905
2906 case R_IA64_IMM14: opnd = IA64_OPND_IMM14; break;
748abff6 2907
800eeca4
JW		 2908 case R_IA64_PCREL21F: opnd = IA64_OPND_TGT25; break;
2909 case R_IA64_PCREL21M: opnd = IA64_OPND_TGT25b; break;
748abff6
RH		 2910 case R_IA64_PCREL60B: opnd = IA64_OPND_TGT64; break;
2911 case R_IA64_PCREL21B:
2912 case R_IA64_PCREL21BI:
2913 opnd = IA64_OPND_TGT25c;
2914 break;
800eeca4
JW		 2915
2916 case R_IA64_IMM22:
2917 case R_IA64_GPREL22:
2918 case R_IA64_LTOFF22:
2919 case R_IA64_LTOFF22X:
2920 case R_IA64_PLTOFF22:
748abff6 2921 case R_IA64_PCREL22:
800eeca4
JW		 2922 case R_IA64_LTOFF_FPTR22:
2923 opnd = IA64_OPND_IMM22;
2924 break;
2925
2926 case R_IA64_IMM64:
2927 case R_IA64_GPREL64I:
2928 case R_IA64_LTOFF64I:
2929 case R_IA64_PLTOFF64I:
748abff6 2930 case R_IA64_PCREL64I:
800eeca4
JW		 2931 case R_IA64_FPTR64I:
2932 case R_IA64_LTOFF_FPTR64I:
2933 opnd = IA64_OPND_IMMU64;
2934 break;
2935
2936 /* Data relocations. */
2937
2938 case R_IA64_DIR32MSB:
2939 case R_IA64_GPREL32MSB:
2940 case R_IA64_FPTR32MSB:
2941 case R_IA64_PCREL32MSB:
a4bd8390 2942 case R_IA64_LTOFF_FPTR32MSB:
800eeca4
JW		 2943 case R_IA64_SEGREL32MSB:
2944 case R_IA64_SECREL32MSB:
2945 case R_IA64_LTV32MSB:
2946 size = 4; bigendian = 1;
2947 break;
2948
2949 case R_IA64_DIR32LSB:
2950 case R_IA64_GPREL32LSB:
2951 case R_IA64_FPTR32LSB:
2952 case R_IA64_PCREL32LSB:
a4bd8390 2953 case R_IA64_LTOFF_FPTR32LSB:
800eeca4
JW		 2954 case R_IA64_SEGREL32LSB:
2955 case R_IA64_SECREL32LSB:
2956 case R_IA64_LTV32LSB:
2957 size = 4; bigendian = 0;
2958 break;
2959
2960 case R_IA64_DIR64MSB:
2961 case R_IA64_GPREL64MSB:
2962 case R_IA64_PLTOFF64MSB:
2963 case R_IA64_FPTR64MSB:
2964 case R_IA64_PCREL64MSB:
2965 case R_IA64_LTOFF_FPTR64MSB:
2966 case R_IA64_SEGREL64MSB:
2967 case R_IA64_SECREL64MSB:
2968 case R_IA64_LTV64MSB:
2969 size = 8; bigendian = 1;
2970 break;
2971
2972 case R_IA64_DIR64LSB:
2973 case R_IA64_GPREL64LSB:
2974 case R_IA64_PLTOFF64LSB:
2975 case R_IA64_FPTR64LSB:
2976 case R_IA64_PCREL64LSB:
2977 case R_IA64_LTOFF_FPTR64LSB:
2978 case R_IA64_SEGREL64LSB:
2979 case R_IA64_SECREL64LSB:
2980 case R_IA64_LTV64LSB:
2981 size = 8; bigendian = 0;
2982 break;
2983
2984 /* Unsupported / Dynamic relocations. */
800eeca4
JW		 2985 default:
2986 return bfd_reloc_notsupported;
2987 }
2988
2989 switch (opnd)
2990 {
2991 case IA64_OPND_IMMU64:
2992 hit_addr -= (long) hit_addr & 0x3;
2993 t0 = bfd_get_64 (abfd, hit_addr);
2994 t1 = bfd_get_64 (abfd, hit_addr + 8);
2995
2996 /* tmpl/s: bits 0.. 5 in t0
2997 slot 0: bits 5..45 in t0
2998 slot 1: bits 46..63 in t0, bits 0..22 in t1
2999 slot 2: bits 23..63 in t1 */
3000
3001 /* First, clear the bits that form the 64 bit constant. */
3002 t0 &= ~(0x3ffffLL << 46);
3003 t1 &= ~(0x7fffffLL
3004 | (( (0x07fLL << 13) | (0x1ffLL << 27)
3005 | (0x01fLL << 22) | (0x001LL << 21)
3006 | (0x001LL << 36)) << 23));
3007
3008 t0 |= ((val >> 22) & 0x03ffffLL) << 46; /* 18 lsbs of imm41 */
3009 t1 |= ((val >> 40) & 0x7fffffLL) << 0; /* 23 msbs of imm41 */
3010 t1 |= ( (((val >> 0) & 0x07f) << 13) /* imm7b */
3011 | (((val >> 7) & 0x1ff) << 27) /* imm9d */
3012 | (((val >> 16) & 0x01f) << 22) /* imm5c */
3013 | (((val >> 21) & 0x001) << 21) /* ic */
3014 | (((val >> 63) & 0x001) << 36)) << 23; /* i */
3015
3016 bfd_put_64 (abfd, t0, hit_addr);
3017 bfd_put_64 (abfd, t1, hit_addr + 8);
3018 break;
3019
748abff6
RH		 3020 case IA64_OPND_TGT64:
3021 hit_addr -= (long) hit_addr & 0x3;
3022 t0 = bfd_get_64 (abfd, hit_addr);
3023 t1 = bfd_get_64 (abfd, hit_addr + 8);
3024
3025 /* tmpl/s: bits 0.. 5 in t0
3026 slot 0: bits 5..45 in t0
3027 slot 1: bits 46..63 in t0, bits 0..22 in t1
3028 slot 2: bits 23..63 in t1 */
3029
3030 /* First, clear the bits that form the 64 bit constant. */
3031 t0 &= ~(0x3ffffLL << 46);
3032 t1 &= ~(0x7fffffLL
3033 | ((1LL << 36 | 0xfffffLL << 13) << 23));
3034
3035 val >>= 4;
3036 t0 |= ((val >> 20) & 0xffffLL) << 2 << 46; /* 16 lsbs of imm39 */
3037 t1 |= ((val >> 36) & 0x7fffffLL) << 0; /* 23 msbs of imm39 */
3038 t1 |= ((((val >> 0) & 0xfffffLL) << 13) /* imm20b */
3039 | (((val >> 59) & 0x1LL) << 36)) << 23; /* i */
3040
3041 bfd_put_64 (abfd, t0, hit_addr);
3042 bfd_put_64 (abfd, t1, hit_addr + 8);
3043 break;
3044
800eeca4
JW		 3045 default:
3046 switch ((long) hit_addr & 0x3)
3047 {
3048 case 0: shift = 5; break;
3049 case 1: shift = 14; hit_addr += 3; break;
3050 case 2: shift = 23; hit_addr += 6; break;
3e932841 3051 case 3: return bfd_reloc_notsupported; /* shouldn't happen... */
800eeca4
JW		 3052 }
3053 dword = bfd_get_64 (abfd, hit_addr);
3054 insn = (dword >> shift) & 0x1ffffffffffLL;
3055
3056 op = elf64_ia64_operands + opnd;
1e738b87 3057 err = (*op->insert) (op, val, (ia64_insn *)& insn);
800eeca4
JW		 3058 if (err)
3059 return bfd_reloc_overflow;
3060
3061 dword &= ~(0x1ffffffffffLL << shift);
3062 dword |= (insn << shift);
3063 bfd_put_64 (abfd, dword, hit_addr);
3064 break;
3065
3066 case IA64_OPND_NIL:
3067 /* A data relocation. */
3068 if (bigendian)
3069 if (size == 4)
3070 bfd_putb32 (val, hit_addr);
3071 else
3072 bfd_putb64 (val, hit_addr);
3073 else
3074 if (size == 4)
3075 bfd_putl32 (val, hit_addr);
3076 else
3077 bfd_putl64 (val, hit_addr);
3078 break;
3079 }
3080
3081 return bfd_reloc_ok;
3082}
3083
3084static void
bbe66d08 3085elfNN_ia64_install_dyn_reloc (abfd, info, sec, srel, offset, type,
800eeca4
JW		 3086 dynindx, addend)
3087 bfd *abfd;
3088 struct bfd_link_info *info;
3089 asection *sec;
3090 asection *srel;
3091 bfd_vma offset;
3092 unsigned int type;
3093 long dynindx;
3094 bfd_vma addend;
3095{
3096 Elf_Internal_Rela outrel;
3097
c629eae0 3098 offset += sec->output_section->vma + sec->output_offset;
800eeca4
JW		 3099
3100 BFD_ASSERT (dynindx != -1);
bbe66d08 3101 outrel.r_info = ELFNN_R_INFO (dynindx, type);
800eeca4 3102 outrel.r_addend = addend;
c629eae0 3103 outrel.r_offset = _bfd_elf_section_offset (abfd, info, sec, offset);
0bb2d96a 3104 if ((outrel.r_offset | 1) == (bfd_vma) -1)
800eeca4 3105 {
c629eae0
JJ		 3106 /* Run for the hills. We shouldn't be outputting a relocation
3107 for this. So do what everyone else does and output a no-op. */
3108 outrel.r_info = ELFNN_R_INFO (0, R_IA64_NONE);
3109 outrel.r_addend = 0;
3110 outrel.r_offset = 0;
800eeca4
JW		 3111 }
3112
bbe66d08
JW		 3113 bfd_elfNN_swap_reloca_out (abfd, &outrel,
3114 ((ElfNN_External_Rela *) srel->contents
800eeca4 3115 + srel->reloc_count++));
3e932841 3116 BFD_ASSERT (sizeof (ElfNN_External_Rela) * srel->reloc_count
800eeca4
JW		 3117 <= srel->_cooked_size);
3118}
3119
3120/* Store an entry for target address TARGET_ADDR in the linkage table
3121 and return the gp-relative address of the linkage table entry. */
3122
3123static bfd_vma
3124set_got_entry (abfd, info, dyn_i, dynindx, addend, value, dyn_r_type)
3125 bfd *abfd;
3126 struct bfd_link_info *info;
bbe66d08 3127 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 3128 long dynindx;
3129 bfd_vma addend;
3130 bfd_vma value;
3131 unsigned int dyn_r_type;
3132{
bbe66d08 3133 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW		 3134 asection *got_sec;
3135
bbe66d08 3136 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW		 3137 got_sec = ia64_info->got_sec;
3138
3139 BFD_ASSERT ((dyn_i->got_offset & 7) == 0);
3140
3141 if (! dyn_i->got_done)
3142 {
3143 dyn_i->got_done = true;
3144
3145 /* Store the target address in the linkage table entry. */
3146 bfd_put_64 (abfd, value, got_sec->contents + dyn_i->got_offset);
3147
3148 /* Install a dynamic relocation if needed. */
3149 if (info->shared
bbe66d08 3150 || elfNN_ia64_dynamic_symbol_p (dyn_i->h, info)
7b6dab7f 3151 || elfNN_ia64_aix_vec (abfd->xvec)
800eeca4
JW		 3152 || (dynindx != -1 && dyn_r_type == R_IA64_FPTR64LSB))
3153 {
3154 if (dynindx == -1)
3155 {
3156 dyn_r_type = R_IA64_REL64LSB;
3157 dynindx = 0;
3158 addend = value;
3159 }
3160
3161 if (bfd_big_endian (abfd))
3162 {
3163 switch (dyn_r_type)
3164 {
3165 case R_IA64_REL64LSB:
3166 dyn_r_type = R_IA64_REL64MSB;
3167 break;
3168 case R_IA64_DIR64LSB:
3169 dyn_r_type = R_IA64_DIR64MSB;
3170 break;
3171 case R_IA64_FPTR64LSB:
3172 dyn_r_type = R_IA64_FPTR64MSB;
3173 break;
3174 default:
3175 BFD_ASSERT (false);
3176 break;
3177 }
3178 }
3179
bbe66d08 3180 elfNN_ia64_install_dyn_reloc (abfd, NULL, got_sec,
800eeca4
JW		 3181 ia64_info->rel_got_sec,
3182 dyn_i->got_offset, dyn_r_type,
3183 dynindx, addend);
3184 }
3185 }
3186
3187 /* Return the address of the linkage table entry. */
3188 value = (got_sec->output_section->vma
3189 + got_sec->output_offset
3190 + dyn_i->got_offset);
3191
3192 return value;
3193}
3194
3195/* Fill in a function descriptor consisting of the function's code
3196 address and its global pointer. Return the descriptor's address. */
3197
3198static bfd_vma
3199set_fptr_entry (abfd, info, dyn_i, value)
3200 bfd *abfd;
3201 struct bfd_link_info *info;
bbe66d08 3202 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 3203 bfd_vma value;
3204{
bbe66d08 3205 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW		 3206 asection *fptr_sec;
3207
bbe66d08 3208 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW		 3209 fptr_sec = ia64_info->fptr_sec;
3210
3211 if (!dyn_i->fptr_done)
3212 {
3213 dyn_i->fptr_done = 1;
3214
3215 /* Fill in the function descriptor. */
3216 bfd_put_64 (abfd, value, fptr_sec->contents + dyn_i->fptr_offset);
3217 bfd_put_64 (abfd, _bfd_get_gp_value (abfd),
3218 fptr_sec->contents + dyn_i->fptr_offset + 8);
3219 }
3220
3221 /* Return the descriptor's address. */
3222 value = (fptr_sec->output_section->vma
3223 + fptr_sec->output_offset
3224 + dyn_i->fptr_offset);
3225
3226 return value;
3227}
3228
3229/* Fill in a PLTOFF entry consisting of the function's code address
3230 and its global pointer. Return the descriptor's address. */
3231
3232static bfd_vma
3233set_pltoff_entry (abfd, info, dyn_i, value, is_plt)
3234 bfd *abfd;
3235 struct bfd_link_info *info;
bbe66d08 3236 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 3237 bfd_vma value;
3238 boolean is_plt;
3239{
bbe66d08 3240 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW		 3241 asection *pltoff_sec;
3242
bbe66d08 3243 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW		 3244 pltoff_sec = ia64_info->pltoff_sec;
3245
3246 /* Don't do anything if this symbol uses a real PLT entry. In
3247 that case, we'll fill this in during finish_dynamic_symbol. */
3248 if ((! dyn_i->want_plt || is_plt)
3249 && !dyn_i->pltoff_done)
3250 {
18b27f17
RH		 3251 bfd_vma gp = _bfd_get_gp_value (abfd);
3252
800eeca4
JW		 3253 /* Fill in the function descriptor. */
3254 bfd_put_64 (abfd, value, pltoff_sec->contents + dyn_i->pltoff_offset);
18b27f17 3255 bfd_put_64 (abfd, gp, pltoff_sec->contents + dyn_i->pltoff_offset + 8);
800eeca4
JW		 3256
3257 /* Install dynamic relocations if needed. */
3258 if (!is_plt && info->shared)
3259 {
3260 unsigned int dyn_r_type;
3261
3262 if (bfd_big_endian (abfd))
3263 dyn_r_type = R_IA64_REL64MSB;
3264 else
3265 dyn_r_type = R_IA64_REL64LSB;
3266
bbe66d08 3267 elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
800eeca4
JW		 3268 ia64_info->rel_pltoff_sec,
3269 dyn_i->pltoff_offset,
18b27f17 3270 dyn_r_type, 0, value);
bbe66d08 3271 elfNN_ia64_install_dyn_reloc (abfd, NULL, pltoff_sec,
800eeca4
JW		 3272 ia64_info->rel_pltoff_sec,
3273 dyn_i->pltoff_offset + 8,
18b27f17 3274 dyn_r_type, 0, gp);
800eeca4
JW		 3275 }
3276
3277 dyn_i->pltoff_done = 1;
3278 }
3279
3280 /* Return the descriptor's address. */
3281 value = (pltoff_sec->output_section->vma
3282 + pltoff_sec->output_offset
3283 + dyn_i->pltoff_offset);
3284
3285 return value;
3286}
3287
f3b6f7c3 3288/* Called through qsort to sort the .IA_64.unwind section during a
bbe66d08 3289 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
f3b6f7c3
RH		 3290 to the output bfd so we can do proper endianness frobbing. */
3291
bbe66d08 3292static bfd *elfNN_ia64_unwind_entry_compare_bfd;
f3b6f7c3
RH		 3293
3294static int
bbe66d08 3295elfNN_ia64_unwind_entry_compare (a, b)
cea4409c
AM		 3296 const PTR a;
3297 const PTR b;
f3b6f7c3
RH		 3298{
3299 bfd_vma av, bv;
3300
bbe66d08
JW		 3301 av = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, a);
3302 bv = bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd, b);
f3b6f7c3
RH		 3303
3304 return (av < bv ? -1 : av > bv ? 1 : 0);
3305}
3306
800eeca4 3307static boolean
bbe66d08 3308elfNN_ia64_final_link (abfd, info)
800eeca4
JW		 3309 bfd *abfd;
3310 struct bfd_link_info *info;
3311{
bbe66d08 3312 struct elfNN_ia64_link_hash_table *ia64_info;
9a951beb
RH		 3313 asection *unwind_output_sec;
3314
bbe66d08 3315 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW		 3316
3317 /* Make sure we've got ourselves a nice fat __gp value. */
3318 if (!info->relocateable)
3319 {
3320 bfd_vma min_vma = (bfd_vma) -1, max_vma = 0;
3321 bfd_vma min_short_vma = min_vma, max_short_vma = 0;
3322 struct elf_link_hash_entry *gp;
3323 bfd_vma gp_val;
3324 asection *os;
3325
3326 /* Find the min and max vma of all sections marked short. Also
3327 collect min and max vma of any type, for use in selecting a
3328 nice gp. */
3329 for (os = abfd->sections; os ; os = os->next)
3330 {
3331 bfd_vma lo, hi;
3332
3333 if ((os->flags & SEC_ALLOC) == 0)
3334 continue;
3335
3336 lo = os->vma;
3337 hi = os->vma + os->_raw_size;
3338 if (hi < lo)
3339 hi = (bfd_vma) -1;
3340
3341 if (min_vma > lo)
3342 min_vma = lo;
3343 if (max_vma < hi)
3344 max_vma = hi;
3345 if (os->flags & SEC_SMALL_DATA)
3346 {
3347 if (min_short_vma > lo)
3348 min_short_vma = lo;
3349 if (max_short_vma < hi)
3350 max_short_vma = hi;
3351 }
3352 }
3353
3354 /* See if the user wants to force a value. */
3355 gp = elf_link_hash_lookup (elf_hash_table (info), "__gp", false,
3356 false, false);
3357
3358 if (gp
3359 && (gp->root.type == bfd_link_hash_defined
3360 || gp->root.type == bfd_link_hash_defweak))
3361 {
3362 asection *gp_sec = gp->root.u.def.section;
3363 gp_val = (gp->root.u.def.value
3364 + gp_sec->output_section->vma
3365 + gp_sec->output_offset);
3366 }
3367 else
3368 {
3369 /* Pick a sensible value. */
3370
3371 asection *got_sec = ia64_info->got_sec;
3372
3373 /* Start with just the address of the .got. */
3374 if (got_sec)
3375 gp_val = got_sec->output_section->vma;
3376 else if (max_short_vma != 0)
3377 gp_val = min_short_vma;
3378 else
3379 gp_val = min_vma;
3380
3381 /* If it is possible to address the entire image, but we
3382 don't with the choice above, adjust. */
3383 if (max_vma - min_vma < 0x400000
3384 && max_vma - gp_val <= 0x200000
3385 && gp_val - min_vma > 0x200000)
3386 gp_val = min_vma + 0x200000;
3387 else if (max_short_vma != 0)
3388 {
3389 /* If we don't cover all the short data, adjust. */
3390 if (max_short_vma - gp_val >= 0x200000)
3391 gp_val = min_short_vma + 0x200000;
3392
3393 /* If we're addressing stuff past the end, adjust back. */
3394 if (gp_val > max_vma)
3395 gp_val = max_vma - 0x200000 + 8;
3396 }
3397 }
3398
3399 /* Validate whether all SHF_IA_64_SHORT sections are within
3400 range of the chosen GP. */
3401
3402 if (max_short_vma != 0)
3403 {
3404 if (max_short_vma - min_short_vma >= 0x400000)
3405 {
3406 (*_bfd_error_handler)
3407 (_("%s: short data segment overflowed (0x%lx >= 0x400000)"),
3408 bfd_get_filename (abfd),
3e932841 3409 (unsigned long) (max_short_vma - min_short_vma));
800eeca4
JW		 3410 return false;
3411 }
3412 else if ((gp_val > min_short_vma
3413 && gp_val - min_short_vma > 0x200000)
3414 || (gp_val < max_short_vma
3415 && max_short_vma - gp_val >= 0x200000))
3416 {
3417 (*_bfd_error_handler)
3418 (_("%s: __gp does not cover short data segment"),
3419 bfd_get_filename (abfd));
3420 return false;
3421 }
3422 }
3423
3424 _bfd_set_gp_value (abfd, gp_val);
b4adccfd
RH		 3425
3426 if (gp)
3427 {
3428 gp->root.type = bfd_link_hash_defined;
3429 gp->root.u.def.value = gp_val;
3430 gp->root.u.def.section = bfd_abs_section_ptr;
3431 }
800eeca4
JW		 3432 }
3433
f3b6f7c3 3434 /* If we're producing a final executable, we need to sort the contents
9a951beb
RH		 3435 of the .IA_64.unwind section. Force this section to be relocated
3436 into memory rather than written immediately to the output file. */
3437 unwind_output_sec = NULL;
f3b6f7c3
RH		 3438 if (!info->relocateable)
3439 {
3440 asection *s = bfd_get_section_by_name (abfd, ELF_STRING_ia64_unwind);
3441 if (s)
3442 {
9a951beb
RH		 3443 unwind_output_sec = s->output_section;
3444 unwind_output_sec->contents
3445 = bfd_malloc (unwind_output_sec->_raw_size);
3446 if (unwind_output_sec->contents == NULL)
f3b6f7c3 3447 return false;
9a951beb
RH		 3448 }
3449 }
f3b6f7c3 3450
9a951beb
RH		 3451 /* Invoke the regular ELF backend linker to do all the work. */
3452 if (!bfd_elfNN_bfd_final_link (abfd, info))
3453 return false;
f3b6f7c3 3454
9a951beb
RH		 3455 if (unwind_output_sec)
3456 {
3457 elfNN_ia64_unwind_entry_compare_bfd = abfd;
dc810e39
AM		 3458 qsort (unwind_output_sec->contents,
3459 (size_t) (unwind_output_sec->_raw_size / 24),
3460 24,
3461 elfNN_ia64_unwind_entry_compare);
9a951beb
RH		 3462
3463 if (! bfd_set_section_contents (abfd, unwind_output_sec,
dc810e39 3464 unwind_output_sec->contents, (bfd_vma) 0,
9a951beb
RH		 3465 unwind_output_sec->_raw_size))
3466 return false;
f3b6f7c3
RH		 3467 }
3468
3469 return true;
800eeca4
JW		 3470}
3471
3472static boolean
bbe66d08 3473elfNN_ia64_relocate_section (output_bfd, info, input_bfd, input_section,
800eeca4
JW		 3474 contents, relocs, local_syms, local_sections)
3475 bfd *output_bfd;
3476 struct bfd_link_info *info;
3477 bfd *input_bfd;
3478 asection *input_section;
3479 bfd_byte *contents;
3480 Elf_Internal_Rela *relocs;
3481 Elf_Internal_Sym *local_syms;
3482 asection **local_sections;
3483{
bbe66d08 3484 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW		 3485 Elf_Internal_Shdr *symtab_hdr;
3486 Elf_Internal_Rela *rel;
3487 Elf_Internal_Rela *relend;
3488 asection *srel;
3489 boolean ret_val = true; /* for non-fatal errors */
3490 bfd_vma gp_val;
3491
3492 symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
bbe66d08 3493 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW		 3494
3495 /* Infect various flags from the input section to the output section. */
3496 if (info->relocateable)
3497 {
3498 bfd_vma flags;
3499
3500 flags = elf_section_data(input_section)->this_hdr.sh_flags;
3501 flags &= SHF_IA_64_NORECOV;
3502
3503 elf_section_data(input_section->output_section)
3504 ->this_hdr.sh_flags |= flags;
b491616a 3505 return true;
800eeca4
JW		 3506 }
3507
3508 gp_val = _bfd_get_gp_value (output_bfd);
3509 srel = get_reloc_section (input_bfd, ia64_info, input_section, false);
3510
3511 rel = relocs;
3512 relend = relocs + input_section->reloc_count;
3513 for (; rel < relend; ++rel)
3514 {
3515 struct elf_link_hash_entry *h;
bbe66d08 3516 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4
JW		 3517 bfd_reloc_status_type r;
3518 reloc_howto_type *howto;
3519 unsigned long r_symndx;
3520 Elf_Internal_Sym *sym;
3521 unsigned int r_type;
3522 bfd_vma value;
3523 asection *sym_sec;
3524 bfd_byte *hit_addr;
3525 boolean dynamic_symbol_p;
3526 boolean undef_weak_ref;
3527
bbe66d08 3528 r_type = ELFNN_R_TYPE (rel->r_info);
800eeca4
JW		 3529 if (r_type > R_IA64_MAX_RELOC_CODE)
3530 {
3531 (*_bfd_error_handler)
3532 (_("%s: unknown relocation type %d"),
8f615d07 3533 bfd_archive_filename (input_bfd), (int)r_type);
800eeca4
JW		 3534 bfd_set_error (bfd_error_bad_value);
3535 ret_val = false;
3536 continue;
3537 }
b491616a 3538
800eeca4 3539 howto = lookup_howto (r_type);
bbe66d08 3540 r_symndx = ELFNN_R_SYM (rel->r_info);
800eeca4
JW		 3541 h = NULL;
3542 sym = NULL;
3543 sym_sec = NULL;
3544 undef_weak_ref = false;
3545
3546 if (r_symndx < symtab_hdr->sh_info)
3547 {
3548 /* Reloc against local symbol. */
3549 sym = local_syms + r_symndx;
3550 sym_sec = local_sections[r_symndx];
f8df10f4 3551 value = _bfd_elf_rela_local_sym (output_bfd, sym, sym_sec, rel);
f7460f5f
JJ		 3552 if ((sym_sec->flags & SEC_MERGE)
3553 && ELF_ST_TYPE (sym->st_info) == STT_SECTION
65765700
JJ		 3554 && (elf_section_data (sym_sec)->sec_info_type
3555 == ELF_INFO_TYPE_MERGE))
f7460f5f
JJ		 3556 {
3557 struct elfNN_ia64_local_hash_entry *loc_h;
3558
3559 loc_h = get_local_sym_hash (ia64_info, input_bfd, rel, false);
3560 if (loc_h && ! loc_h->sec_merge_done)
3561 {
3562 struct elfNN_ia64_dyn_sym_info *dynent;
3563 asection *msec;
3564
3565 for (dynent = loc_h->info; dynent; dynent = dynent->next)
3566 {
3567 msec = sym_sec;
3568 dynent->addend =
3569 _bfd_merged_section_offset (output_bfd, &msec,
3570 elf_section_data (msec)->
65765700 3571 sec_info,
f7460f5f
JJ		 3572 sym->st_value
3573 + dynent->addend,
3574 (bfd_vma) 0);
3575 dynent->addend -= sym->st_value;
3576 dynent->addend += msec->output_section->vma
3577 + msec->output_offset
3578 - sym_sec->output_section->vma
3579 - sym_sec->output_offset;
3580 }
3581 loc_h->sec_merge_done = 1;
3582 }
3583 }
800eeca4
JW		 3584 }
3585 else
3586 {
3587 long indx;
3588
3589 /* Reloc against global symbol. */
3590 indx = r_symndx - symtab_hdr->sh_info;
3591 h = elf_sym_hashes (input_bfd)[indx];
3592 while (h->root.type == bfd_link_hash_indirect
3593 || h->root.type == bfd_link_hash_warning)
3594 h = (struct elf_link_hash_entry *) h->root.u.i.link;
3595
3596 value = 0;
3597 if (h->root.type == bfd_link_hash_defined
3598 || h->root.type == bfd_link_hash_defweak)
3599 {
3600 sym_sec = h->root.u.def.section;
3601
3602 /* Detect the cases that sym_sec->output_section is
3603 expected to be NULL -- all cases in which the symbol
3604 is defined in another shared module. This includes
3605 PLT relocs for which we've created a PLT entry and
3606 other relocs for which we're prepared to create
3607 dynamic relocations. */
3608 /* ??? Just accept it NULL and continue. */
3609
3610 if (sym_sec->output_section != NULL)
3611 {
3612 value = (h->root.u.def.value
3613 + sym_sec->output_section->vma
3614 + sym_sec->output_offset);
3615 }
3616 }
3617 else if (h->root.type == bfd_link_hash_undefweak)
3618 undef_weak_ref = true;
671bae9c
NC		 3619 else if (info->shared
3620 && (!info->symbolic || info->allow_shlib_undefined)
3a27a730
L		 3621 && !info->no_undefined
3622 && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT)
800eeca4
JW		 3623 ;
3624 else
3625 {
3626 if (! ((*info->callbacks->undefined_symbol)
3627 (info, h->root.root.string, input_bfd,
3628 input_section, rel->r_offset,
3a27a730
L		 3629 (!info->shared || info->no_undefined
3630 || ELF_ST_VISIBILITY (h->other)))))
800eeca4
JW		 3631 return false;
3632 ret_val = false;
3633 continue;
3634 }
3635 }
3636
3637 hit_addr = contents + rel->r_offset;
3638 value += rel->r_addend;
bbe66d08 3639 dynamic_symbol_p = elfNN_ia64_dynamic_symbol_p (h, info);
800eeca4
JW		 3640
3641 switch (r_type)
3642 {
3643 case R_IA64_NONE:
3644 case R_IA64_LDXMOV:
3645 continue;
3646
3647 case R_IA64_IMM14:
3648 case R_IA64_IMM22:
3649 case R_IA64_IMM64:
3650 case R_IA64_DIR32MSB:
3651 case R_IA64_DIR32LSB:
3652 case R_IA64_DIR64MSB:
3653 case R_IA64_DIR64LSB:
3654 /* Install a dynamic relocation for this reloc. */
7b6dab7f
TW		 3655 if ((dynamic_symbol_p || info->shared
3656 || (elfNN_ia64_aix_vec (info->hash->creator)
64e9ece0 3657 /* Don't emit relocs for __GLOB_DATA_PTR on AIX. */
dc810e39 3658 && (!h || strcmp (h->root.root.string,
64e9ece0 3659 "__GLOB_DATA_PTR") != 0)))
ec338859 3660 && r_symndx != 0
800eeca4
JW		 3661 && (input_section->flags & SEC_ALLOC) != 0)
3662 {
3663 unsigned int dyn_r_type;
3664 long dynindx;
18b27f17 3665 bfd_vma addend;
800eeca4
JW		 3666
3667 BFD_ASSERT (srel != NULL);
3668
3669 /* If we don't need dynamic symbol lookup, find a
3670 matching RELATIVE relocation. */
3671 dyn_r_type = r_type;
3672 if (dynamic_symbol_p)
18b27f17
RH		 3673 {
3674 dynindx = h->dynindx;
3675 addend = rel->r_addend;
3676 value = 0;
3677 }
800eeca4
JW		 3678 else
3679 {
3680 switch (r_type)
3681 {
3682 case R_IA64_DIR32MSB:
3683 dyn_r_type = R_IA64_REL32MSB;
3684 break;
3685 case R_IA64_DIR32LSB:
3686 dyn_r_type = R_IA64_REL32LSB;
3687 break;
3688 case R_IA64_DIR64MSB:
3689 dyn_r_type = R_IA64_REL64MSB;
3690 break;
3691 case R_IA64_DIR64LSB:
3692 dyn_r_type = R_IA64_REL64LSB;
3693 break;
3694
3695 default:
3696 /* We can't represent this without a dynamic symbol.
3697 Adjust the relocation to be against an output
3698 section symbol, which are always present in the
3699 dynamic symbol table. */
3700 /* ??? People shouldn't be doing non-pic code in
3701 shared libraries. Hork. */
3702 (*_bfd_error_handler)
3703 (_("%s: linking non-pic code in a shared library"),
8f615d07 3704 bfd_archive_filename (input_bfd));
800eeca4
JW		 3705 ret_val = false;
3706 continue;
3707 }
3708 dynindx = 0;
18b27f17 3709 addend = value;
800eeca4
JW		 3710 }
3711
7b6dab7f
TW		 3712 if (elfNN_ia64_aix_vec (info->hash->creator))
3713 rel->r_addend = value;
bbe66d08 3714 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
800eeca4 3715 srel, rel->r_offset, dyn_r_type,
18b27f17 3716 dynindx, addend);
800eeca4
JW		 3717 }
3718 /* FALLTHRU */
3719
3720 case R_IA64_LTV32MSB:
3721 case R_IA64_LTV32LSB:
3722 case R_IA64_LTV64MSB:
3723 case R_IA64_LTV64LSB:
bbe66d08 3724 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
800eeca4
JW		 3725 break;
3726
3727 case R_IA64_GPREL22:
3728 case R_IA64_GPREL64I:
3729 case R_IA64_GPREL32MSB:
3730 case R_IA64_GPREL32LSB:
3731 case R_IA64_GPREL64MSB:
3732 case R_IA64_GPREL64LSB:
3733 if (dynamic_symbol_p)
3734 {
3735 (*_bfd_error_handler)
3736 (_("%s: @gprel relocation against dynamic symbol %s"),
8f615d07 3737 bfd_archive_filename (input_bfd), h->root.root.string);
800eeca4
JW		 3738 ret_val = false;
3739 continue;
3740 }
3741 value -= gp_val;
bbe66d08 3742 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
800eeca4
JW		 3743 break;
3744
3745 case R_IA64_LTOFF22:
3746 case R_IA64_LTOFF22X:
3747 case R_IA64_LTOFF64I:
3748 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, false);
3749 value = set_got_entry (input_bfd, info, dyn_i, (h ? h->dynindx : -1),
3750 rel->r_addend, value, R_IA64_DIR64LSB);
3751 value -= gp_val;
bbe66d08 3752 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
800eeca4
JW		 3753 break;
3754
3755 case R_IA64_PLTOFF22:
3756 case R_IA64_PLTOFF64I:
3757 case R_IA64_PLTOFF64MSB:
3758 case R_IA64_PLTOFF64LSB:
3759 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, false);
3760 value = set_pltoff_entry (output_bfd, info, dyn_i, value, false);
3761 value -= gp_val;
bbe66d08 3762 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
800eeca4
JW		 3763 break;
3764
3765 case R_IA64_FPTR64I:
3766 case R_IA64_FPTR32MSB:
3767 case R_IA64_FPTR32LSB:
3768 case R_IA64_FPTR64MSB:
3769 case R_IA64_FPTR64LSB:
3770 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, false);
3771 if (dyn_i->want_fptr)
3772 {
3773 if (!undef_weak_ref)
3774 value = set_fptr_entry (output_bfd, info, dyn_i, value);
3775 }
3776 else
3777 {
3778 long dynindx;
3779
3780 /* Otherwise, we expect the dynamic linker to create
3781 the entry. */
3782
3783 if (h)
3784 {
3785 if (h->dynindx != -1)
3786 dynindx = h->dynindx;
3787 else
3788 dynindx = (_bfd_elf_link_lookup_local_dynindx
3789 (info, h->root.u.def.section->owner,
3790 global_sym_index (h)));
3791 }
3792 else
3793 {
3794 dynindx = (_bfd_elf_link_lookup_local_dynindx
dc810e39 3795 (info, input_bfd, (long) r_symndx));
800eeca4
JW		 3796 }
3797
bbe66d08 3798 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
800eeca4
JW		 3799 srel, rel->r_offset, r_type,
3800 dynindx, rel->r_addend);
3801 value = 0;
3802 }
3803
bbe66d08 3804 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
800eeca4
JW		 3805 break;
3806
3807 case R_IA64_LTOFF_FPTR22:
3808 case R_IA64_LTOFF_FPTR64I:
a4bd8390
JW		 3809 case R_IA64_LTOFF_FPTR32MSB:
3810 case R_IA64_LTOFF_FPTR32LSB:
800eeca4
JW		 3811 case R_IA64_LTOFF_FPTR64MSB:
3812 case R_IA64_LTOFF_FPTR64LSB:
3813 {
3814 long dynindx;
3815
3816 dyn_i = get_dyn_sym_info (ia64_info, h, input_bfd, rel, false);
3817 if (dyn_i->want_fptr)
3818 {
3819 BFD_ASSERT (h == NULL || h->dynindx == -1)
3820 if (!undef_weak_ref)
3821 value = set_fptr_entry (output_bfd, info, dyn_i, value);
3822 dynindx = -1;
3823 }
3824 else
3825 {
3826 /* Otherwise, we expect the dynamic linker to create
3827 the entry. */
3828 if (h)
3829 {
3830 if (h->dynindx != -1)
3831 dynindx = h->dynindx;
3832 else
3833 dynindx = (_bfd_elf_link_lookup_local_dynindx
3834 (info, h->root.u.def.section->owner,
3835 global_sym_index (h)));
3836 }
3837 else
3838 dynindx = (_bfd_elf_link_lookup_local_dynindx
dc810e39 3839 (info, input_bfd, (long) r_symndx));
800eeca4
JW		 3840 value = 0;
3841 }
3842
3843 value = set_got_entry (output_bfd, info, dyn_i, dynindx,
3844 rel->r_addend, value, R_IA64_FPTR64LSB);
3845 value -= gp_val;
bbe66d08 3846 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
800eeca4
JW		 3847 }
3848 break;
3849
3850 case R_IA64_PCREL32MSB:
3851 case R_IA64_PCREL32LSB:
3852 case R_IA64_PCREL64MSB:
3853 case R_IA64_PCREL64LSB:
3854 /* Install a dynamic relocation for this reloc. */
ec338859
AM		 3855 if ((dynamic_symbol_p
3856 || elfNN_ia64_aix_vec (info->hash->creator))
3857 && r_symndx != 0)
800eeca4
JW		 3858 {
3859 BFD_ASSERT (srel != NULL);
3860
bbe66d08 3861 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
800eeca4
JW		 3862 srel, rel->r_offset, r_type,
3863 h->dynindx, rel->r_addend);
3864 }
3865 goto finish_pcrel;
3866
748abff6 3867 case R_IA64_PCREL21BI:
800eeca4
JW		 3868 case R_IA64_PCREL21F:
3869 case R_IA64_PCREL21M:
3870 /* ??? These two are only used for speculation fixup code.
3871 They should never be dynamic. */
3872 if (dynamic_symbol_p)
3873 {
3874 (*_bfd_error_handler)
3875 (_("%s: dynamic relocation against speculation fixup"),
8f615d07 3876 bfd_archive_filename (input_bfd));
800eeca4
JW		 3877 ret_val = false;
3878 continue;
3879 }
3880 if (undef_weak_ref)
3881 {
3882 (*_bfd_error_handler)
3883 (_("%s: speculation fixup against undefined weak symbol"),
8f615d07 3884 bfd_archive_filename (input_bfd));
800eeca4
JW		 3885 ret_val = false;
3886 continue;
3887 }
3888 goto finish_pcrel;
3889
3890 case R_IA64_PCREL21B:
748abff6 3891 case R_IA64_PCREL60B:
800eeca4 3892 /* We should have created a PLT entry for any dynamic symbol. */
800eeca4
JW		 3893 dyn_i = NULL;
3894 if (h)
3895 dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, false);
3896
3897 if (dyn_i && dyn_i->want_plt2)
3898 {
3899 /* Should have caught this earlier. */
3900 BFD_ASSERT (rel->r_addend == 0);
3901
3902 value = (ia64_info->plt_sec->output_section->vma
3903 + ia64_info->plt_sec->output_offset
3904 + dyn_i->plt2_offset);
3905 }
3906 else
3907 {
3908 /* Since there's no PLT entry, Validate that this is
3909 locally defined. */
3910 BFD_ASSERT (undef_weak_ref || sym_sec->output_section != NULL);
3911
3912 /* If the symbol is undef_weak, we shouldn't be trying
3913 to call it. There's every chance that we'd wind up
3914 with an out-of-range fixup here. Don't bother setting
3915 any value at all. */
3916 if (undef_weak_ref)
3917 continue;
3918 }
3919 goto finish_pcrel;
3920
748abff6
RH		 3921 case R_IA64_PCREL22:
3922 case R_IA64_PCREL64I:
800eeca4
JW		 3923 finish_pcrel:
3924 /* Make pc-relative. */
3925 value -= (input_section->output_section->vma
3926 + input_section->output_offset
3927 + rel->r_offset) & ~ (bfd_vma) 0x3;
bbe66d08 3928 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
800eeca4
JW		 3929 break;
3930
3931 case R_IA64_SEGREL32MSB:
3932 case R_IA64_SEGREL32LSB:
3933 case R_IA64_SEGREL64MSB:
3934 case R_IA64_SEGREL64LSB:
d7458677
AM		 3935 if (r_symndx == 0)
3936 {
3937 /* If the input section was discarded from the output, then
3938 do nothing. */
3939 r = bfd_reloc_ok;
3940 }
3941 else
3942 {
3943 struct elf_segment_map *m;
3944 Elf_Internal_Phdr *p;
3945
3946 /* Find the segment that contains the output_section. */
3947 for (m = elf_tdata (output_bfd)->segment_map,
3948 p = elf_tdata (output_bfd)->phdr;
3949 m != NULL;
3950 m = m->next, p++)
3951 {
3952 int i;
3953 for (i = m->count - 1; i >= 0; i--)
3954 if (m->sections[i] == sym_sec->output_section)
3955 break;
3956 if (i >= 0)
800eeca4 3957 break;
d7458677 3958 }
800eeca4 3959
d7458677
AM		 3960 if (m == NULL)
3961 {
800eeca4 3962 r = bfd_reloc_notsupported;
d7458677
AM		 3963 }
3964 else
3965 {
3966 /* The VMA of the segment is the vaddr of the associated
3967 program header. */
3968 if (value > p->p_vaddr)
3969 value -= p->p_vaddr;
3970 else
3971 value = 0;
3972 r = elfNN_ia64_install_value (output_bfd, hit_addr, value,
3973 r_type);
3974 }
3975 break;
3976 }
800eeca4
JW		 3977
3978 case R_IA64_SECREL32MSB:
3979 case R_IA64_SECREL32LSB:
3980 case R_IA64_SECREL64MSB:
3981 case R_IA64_SECREL64LSB:
3982 /* Make output-section relative. */
3983 if (value > input_section->output_section->vma)
3984 value -= input_section->output_section->vma;
3985 else
3986 value = 0;
bbe66d08 3987 r = elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
800eeca4
JW		 3988 break;
3989
800eeca4
JW		 3990 case R_IA64_IPLTMSB:
3991 case R_IA64_IPLTLSB:
18b27f17
RH		 3992 /* Install a dynamic relocation for this reloc. */
3993 if ((dynamic_symbol_p || info->shared)
3994 && (input_section->flags & SEC_ALLOC) != 0)
3995 {
18b27f17
RH		 3996 BFD_ASSERT (srel != NULL);
3997
3998 /* If we don't need dynamic symbol lookup, install two
3999 RELATIVE relocations. */
4000 if (! dynamic_symbol_p)
4001 {
4002 unsigned int dyn_r_type;
3e932841 4003
18b27f17
RH		 4004 if (r_type == R_IA64_IPLTMSB)
4005 dyn_r_type = R_IA64_REL64MSB;
4006 else
4007 dyn_r_type = R_IA64_REL64LSB;
4008
4009 elfNN_ia64_install_dyn_reloc (output_bfd, info,
4010 input_section,
4011 srel, rel->r_offset,
4012 dyn_r_type, 0, value);
4013 elfNN_ia64_install_dyn_reloc (output_bfd, info,
4014 input_section,
4015 srel, rel->r_offset + 8,
4016 dyn_r_type, 0, gp_val);
4017 }
4018 else
4019 elfNN_ia64_install_dyn_reloc (output_bfd, info, input_section,
4020 srel, rel->r_offset, r_type,
4021 h->dynindx, rel->r_addend);
4022 }
4023
4024 if (r_type == R_IA64_IPLTMSB)
4025 r_type = R_IA64_DIR64MSB;
4026 else
4027 r_type = R_IA64_DIR64LSB;
4028 elfNN_ia64_install_value (output_bfd, hit_addr, value, r_type);
4029 r = elfNN_ia64_install_value (output_bfd, hit_addr + 8, gp_val,
4030 r_type);
4031 break;
800eeca4 4032
800eeca4
JW		 4033 default:
4034 r = bfd_reloc_notsupported;
4035 break;
4036 }
4037
4038 switch (r)
4039 {
4040 case bfd_reloc_ok:
4041 break;
4042
4043 case bfd_reloc_undefined:
4044 /* This can happen for global table relative relocs if
4045 __gp is undefined. This is a panic situation so we
4046 don't try to continue. */
4047 (*info->callbacks->undefined_symbol)
4048 (info, "__gp", input_bfd, input_section, rel->r_offset, 1);
4049 return false;
4050
4051 case bfd_reloc_notsupported:
4052 {
4053 const char *name;
4054
4055 if (h)
4056 name = h->root.root.string;
4057 else
4058 {
4059 name = bfd_elf_string_from_elf_section (input_bfd,
4060 symtab_hdr->sh_link,
4061 sym->st_name);
4062 if (name == NULL)
4063 return false;
4064 if (*name == '\0')
4065 name = bfd_section_name (input_bfd, input_section);
4066 }
4067 if (!(*info->callbacks->warning) (info, _("unsupported reloc"),
4068 name, input_bfd,
4069 input_section, rel->r_offset))
4070 return false;
4071 ret_val = false;
4072 }
4073 break;
4074
4075 case bfd_reloc_dangerous:
4076 case bfd_reloc_outofrange:
4077 case bfd_reloc_overflow:
4078 default:
4079 {
4080 const char *name;
4081
4082 if (h)
4083 name = h->root.root.string;
4084 else
4085 {
4086 name = bfd_elf_string_from_elf_section (input_bfd,
4087 symtab_hdr->sh_link,
4088 sym->st_name);
4089 if (name == NULL)
4090 return false;
4091 if (*name == '\0')
4092 name = bfd_section_name (input_bfd, input_section);
4093 }
4094 if (!(*info->callbacks->reloc_overflow) (info, name,
dc810e39
AM		 4095 howto->name,
4096 (bfd_vma) 0,
800eeca4
JW		 4097 input_bfd,
4098 input_section,
4099 rel->r_offset))
4100 return false;
4101 ret_val = false;
4102 }
4103 break;
4104 }
4105 }
4106
4107 return ret_val;
4108}
4109
4110static boolean
bbe66d08 4111elfNN_ia64_finish_dynamic_symbol (output_bfd, info, h, sym)
800eeca4
JW		 4112 bfd *output_bfd;
4113 struct bfd_link_info *info;
4114 struct elf_link_hash_entry *h;
4115 Elf_Internal_Sym *sym;
4116{
bbe66d08
JW		 4117 struct elfNN_ia64_link_hash_table *ia64_info;
4118 struct elfNN_ia64_dyn_sym_info *dyn_i;
800eeca4 4119
bbe66d08 4120 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW		 4121 dyn_i = get_dyn_sym_info (ia64_info, h, NULL, NULL, false);
4122
4123 /* Fill in the PLT data, if required. */
4124 if (dyn_i && dyn_i->want_plt)
4125 {
4126 Elf_Internal_Rela outrel;
4127 bfd_byte *loc;
4128 asection *plt_sec;
4129 bfd_vma plt_addr, pltoff_addr, gp_val, index;
bbe66d08 4130 ElfNN_External_Rela *rel;
800eeca4
JW		 4131
4132 gp_val = _bfd_get_gp_value (output_bfd);
4133
4134 /* Initialize the minimal PLT entry. */
4135
4136 index = (dyn_i->plt_offset - PLT_HEADER_SIZE) / PLT_MIN_ENTRY_SIZE;
4137 plt_sec = ia64_info->plt_sec;
4138 loc = plt_sec->contents + dyn_i->plt_offset;
4139
4140 memcpy (loc, plt_min_entry, PLT_MIN_ENTRY_SIZE);
bbe66d08
JW		 4141 elfNN_ia64_install_value (output_bfd, loc, index, R_IA64_IMM22);
4142 elfNN_ia64_install_value (output_bfd, loc+2, -dyn_i->plt_offset,
800eeca4
JW		 4143 R_IA64_PCREL21B);
4144
4145 plt_addr = (plt_sec->output_section->vma
4146 + plt_sec->output_offset
4147 + dyn_i->plt_offset);
4148 pltoff_addr = set_pltoff_entry (output_bfd, info, dyn_i, plt_addr, true);
4149
4150 /* Initialize the FULL PLT entry, if needed. */
4151 if (dyn_i->want_plt2)
4152 {
4153 loc = plt_sec->contents + dyn_i->plt2_offset;
4154
4155 memcpy (loc, plt_full_entry, PLT_FULL_ENTRY_SIZE);
bbe66d08 4156 elfNN_ia64_install_value (output_bfd, loc, pltoff_addr - gp_val,
800eeca4
JW		 4157 R_IA64_IMM22);
4158
4159 /* Mark the symbol as undefined, rather than as defined in the
4160 plt section. Leave the value alone. */
4161 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4162 first place. But perhaps elflink.h did some for us. */
4163 if ((h->elf_link_hash_flags & ELF_LINK_HASH_DEF_REGULAR) == 0)
4164 sym->st_shndx = SHN_UNDEF;
4165 }
4166
4167 /* Create the dynamic relocation. */
4168 outrel.r_offset = pltoff_addr;
4169 if (bfd_little_endian (output_bfd))
bbe66d08 4170 outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTLSB);
800eeca4 4171 else
bbe66d08 4172 outrel.r_info = ELFNN_R_INFO (h->dynindx, R_IA64_IPLTMSB);
800eeca4
JW		 4173 outrel.r_addend = 0;
4174
4175 /* This is fun. In the .IA_64.pltoff section, we've got entries
4176 that correspond both to real PLT entries, and those that
4177 happened to resolve to local symbols but need to be created
4178 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4179 relocations for the real PLT should come at the end of the
4180 section, so that they can be indexed by plt entry at runtime.
4181
4182 We emitted all of the relocations for the non-PLT @pltoff
4183 entries during relocate_section. So we can consider the
4184 existing sec->reloc_count to be the base of the array of
4185 PLT relocations. */
4186
bbe66d08 4187 rel = (ElfNN_External_Rela *)ia64_info->rel_pltoff_sec->contents;
800eeca4
JW		 4188 rel += ia64_info->rel_pltoff_sec->reloc_count;
4189
bbe66d08 4190 bfd_elfNN_swap_reloca_out (output_bfd, &outrel, rel + index);
800eeca4
JW		 4191 }
4192
4193 /* Mark some specially defined symbols as absolute. */
4194 if (strcmp (h->root.root.string, "_DYNAMIC") == 0
4195 || strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0
4196 || strcmp (h->root.root.string, "_PROCEDURE_LINKAGE_TABLE_") == 0)
4197 sym->st_shndx = SHN_ABS;
4198
4199 return true;
4200}
4201
4202static boolean
bbe66d08 4203elfNN_ia64_finish_dynamic_sections (abfd, info)
800eeca4
JW		 4204 bfd *abfd;
4205 struct bfd_link_info *info;
4206{
bbe66d08 4207 struct elfNN_ia64_link_hash_table *ia64_info;
800eeca4
JW		 4208 bfd *dynobj;
4209
bbe66d08 4210 ia64_info = elfNN_ia64_hash_table (info);
800eeca4
JW		 4211 dynobj = ia64_info->root.dynobj;
4212
4213 if (elf_hash_table (info)->dynamic_sections_created)
4214 {
bbe66d08 4215 ElfNN_External_Dyn *dyncon, *dynconend;
800eeca4
JW		 4216 asection *sdyn, *sgotplt;
4217 bfd_vma gp_val;
4218
4219 sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
4220 sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
4221 BFD_ASSERT (sdyn != NULL);
bbe66d08
JW		 4222 dyncon = (ElfNN_External_Dyn *) sdyn->contents;
4223 dynconend = (ElfNN_External_Dyn *) (sdyn->contents + sdyn->_raw_size);
800eeca4
JW		 4224
4225 gp_val = _bfd_get_gp_value (abfd);
4226
4227 for (; dyncon < dynconend; dyncon++)
4228 {
4229 Elf_Internal_Dyn dyn;
800eeca4 4230
bbe66d08 4231 bfd_elfNN_swap_dyn_in (dynobj, dyncon, &dyn);
800eeca4
JW		 4232
4233 switch (dyn.d_tag)
4234 {
4235 case DT_PLTGOT:
4236 dyn.d_un.d_ptr = gp_val;
4237 break;
4238
4239 case DT_PLTRELSZ:
4240 dyn.d_un.d_val = (ia64_info->minplt_entries
bbe66d08 4241 * sizeof (ElfNN_External_Rela));
800eeca4
JW		 4242 break;
4243
4244 case DT_JMPREL:
4245 /* See the comment above in finish_dynamic_symbol. */
4246 dyn.d_un.d_ptr = (ia64_info->rel_pltoff_sec->output_section->vma
4247 + ia64_info->rel_pltoff_sec->output_offset
4248 + (ia64_info->rel_pltoff_sec->reloc_count
bbe66d08 4249 * sizeof (ElfNN_External_Rela)));
800eeca4
JW		 4250 break;
4251
4252 case DT_IA_64_PLT_RESERVE:
4253 dyn.d_un.d_ptr = (sgotplt->output_section->vma
4254 + sgotplt->output_offset);
4255 break;
4256
4257 case DT_RELASZ:
4258 /* Do not have RELASZ include JMPREL. This makes things
3e932841 4259 easier on ld.so. This is not what the rest of BFD set up. */
800eeca4 4260 dyn.d_un.d_val -= (ia64_info->minplt_entries
bbe66d08 4261 * sizeof (ElfNN_External_Rela));
800eeca4 4262 break;
800eeca4
JW		 4263 }
4264
bbe66d08 4265 bfd_elfNN_swap_dyn_out (abfd, &dyn, dyncon);
800eeca4
JW		 4266 }
4267
4268 /* Initialize the PLT0 entry */
4269 if (ia64_info->plt_sec)
4270 {
4271 bfd_byte *loc = ia64_info->plt_sec->contents;
4272 bfd_vma pltres;
4273
4274 memcpy (loc, plt_header, PLT_HEADER_SIZE);
4275
4276 pltres = (sgotplt->output_section->vma
4277 + sgotplt->output_offset
4278 - gp_val);
4279
bbe66d08 4280 elfNN_ia64_install_value (abfd, loc+1, pltres, R_IA64_GPREL22);
800eeca4
JW		 4281 }
4282 }
4283
4284 return true;
4285}
4286\f
4287/* ELF file flag handling: */
4288
3e932841 4289/* Function to keep IA-64 specific file flags. */
800eeca4 4290static boolean
bbe66d08 4291elfNN_ia64_set_private_flags (abfd, flags)
800eeca4
JW		 4292 bfd *abfd;
4293 flagword flags;
4294{
4295 BFD_ASSERT (!elf_flags_init (abfd)
4296 || elf_elfheader (abfd)->e_flags == flags);
4297
4298 elf_elfheader (abfd)->e_flags = flags;
4299 elf_flags_init (abfd) = true;
4300 return true;
4301}
4302
800eeca4
JW		 4303/* Merge backend specific data from an object file to the output
4304 object file when linking. */
4305static boolean
bbe66d08 4306elfNN_ia64_merge_private_bfd_data (ibfd, obfd)
800eeca4
JW		 4307 bfd *ibfd, *obfd;
4308{
4309 flagword out_flags;
4310 flagword in_flags;
4311 boolean ok = true;
4312
4313 /* Don't even pretend to support mixed-format linking. */
4314 if (bfd_get_flavour (ibfd) != bfd_target_elf_flavour
4315 || bfd_get_flavour (obfd) != bfd_target_elf_flavour)
4316 return false;
4317
4318 in_flags = elf_elfheader (ibfd)->e_flags;
4319 out_flags = elf_elfheader (obfd)->e_flags;
4320
4321 if (! elf_flags_init (obfd))
4322 {
4323 elf_flags_init (obfd) = true;
4324 elf_elfheader (obfd)->e_flags = in_flags;
4325
4326 if (bfd_get_arch (obfd) == bfd_get_arch (ibfd)
4327 && bfd_get_arch_info (obfd)->the_default)
4328 {
4329 return bfd_set_arch_mach (obfd, bfd_get_arch (ibfd),
4330 bfd_get_mach (ibfd));
4331 }
4332
4333 return true;
4334 }
4335
4336 /* Check flag compatibility. */
4337 if (in_flags == out_flags)
4338 return true;
4339
c43c2cc5
JW		 4340 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4341 if (!(in_flags & EF_IA_64_REDUCEDFP) && (out_flags & EF_IA_64_REDUCEDFP))
4342 elf_elfheader (obfd)->e_flags &= ~EF_IA_64_REDUCEDFP;
4343
800eeca4
JW		 4344 if ((in_flags & EF_IA_64_TRAPNIL) != (out_flags & EF_IA_64_TRAPNIL))
4345 {
4346 (*_bfd_error_handler)
4347 (_("%s: linking trap-on-NULL-dereference with non-trapping files"),
8f615d07 4348 bfd_archive_filename (ibfd));
800eeca4
JW		 4349
4350 bfd_set_error (bfd_error_bad_value);
4351 ok = false;
4352 }
4353 if ((in_flags & EF_IA_64_BE) != (out_flags & EF_IA_64_BE))
4354 {
4355 (*_bfd_error_handler)
4356 (_("%s: linking big-endian files with little-endian files"),
8f615d07 4357 bfd_archive_filename (ibfd));
800eeca4
JW		 4358
4359 bfd_set_error (bfd_error_bad_value);
4360 ok = false;
4361 }
4362 if ((in_flags & EF_IA_64_ABI64) != (out_flags & EF_IA_64_ABI64))
4363 {
4364 (*_bfd_error_handler)
4365 (_("%s: linking 64-bit files with 32-bit files"),
8f615d07 4366 bfd_archive_filename (ibfd));
800eeca4
JW		 4367
4368 bfd_set_error (bfd_error_bad_value);
4369 ok = false;
4370 }
c43c2cc5
JW		 4371 if ((in_flags & EF_IA_64_CONS_GP) != (out_flags & EF_IA_64_CONS_GP))
4372 {
4373 (*_bfd_error_handler)
4374 (_("%s: linking constant-gp files with non-constant-gp files"),
8f615d07 4375 bfd_archive_filename (ibfd));
c43c2cc5
JW		 4376
4377 bfd_set_error (bfd_error_bad_value);
4378 ok = false;
4379 }
4380 if ((in_flags & EF_IA_64_NOFUNCDESC_CONS_GP)
4381 != (out_flags & EF_IA_64_NOFUNCDESC_CONS_GP))
4382 {
4383 (*_bfd_error_handler)
4384 (_("%s: linking auto-pic files with non-auto-pic files"),
8f615d07 4385 bfd_archive_filename (ibfd));
c43c2cc5
JW		 4386
4387 bfd_set_error (bfd_error_bad_value);
4388 ok = false;
4389 }
800eeca4
JW		 4390
4391 return ok;
4392}
4393
4394static boolean
bbe66d08 4395elfNN_ia64_print_private_bfd_data (abfd, ptr)
800eeca4
JW		 4396 bfd *abfd;
4397 PTR ptr;
4398{
4399 FILE *file = (FILE *) ptr;
4400 flagword flags = elf_elfheader (abfd)->e_flags;
4401
4402 BFD_ASSERT (abfd != NULL && ptr != NULL);
4403
c43c2cc5 4404 fprintf (file, "private flags = %s%s%s%s%s%s%s%s\n",
800eeca4
JW		 4405 (flags & EF_IA_64_TRAPNIL) ? "TRAPNIL, " : "",
4406 (flags & EF_IA_64_EXT) ? "EXT, " : "",
4407 (flags & EF_IA_64_BE) ? "BE, " : "LE, ",
c43c2cc5
JW		 4408 (flags & EF_IA_64_REDUCEDFP) ? "REDUCEDFP, " : "",
4409 (flags & EF_IA_64_CONS_GP) ? "CONS_GP, " : "",
4410 (flags & EF_IA_64_NOFUNCDESC_CONS_GP) ? "NOFUNCDESC_CONS_GP, " : "",
4411 (flags & EF_IA_64_ABSOLUTE) ? "ABSOLUTE, " : "",
800eeca4 4412 (flags & EF_IA_64_ABI64) ? "ABI64" : "ABI32");
3e932841 4413
800eeca4
JW		 4414 _bfd_elf_print_private_bfd_data (abfd, ptr);
4415 return true;
4416}
db6751f2
JJ		 4417
4418static enum elf_reloc_type_class
f51e552e
AM		 4419elfNN_ia64_reloc_type_class (rela)
4420 const Elf_Internal_Rela *rela;
db6751f2 4421{
f51e552e 4422 switch ((int) ELFNN_R_TYPE (rela->r_info))
db6751f2
JJ		 4423 {
4424 case R_IA64_REL32MSB:
4425 case R_IA64_REL32LSB:
4426 case R_IA64_REL64MSB:
4427 case R_IA64_REL64LSB:
4428 return reloc_class_relative;
4429 case R_IA64_IPLTMSB:
4430 case R_IA64_IPLTLSB:
4431 return reloc_class_plt;
4432 case R_IA64_COPY:
4433 return reloc_class_copy;
4434 default:
4435 return reloc_class_normal;
4436 }
4437}
fcf12726 4438
d9cf1b54
AM		 4439static boolean
4440elfNN_ia64_hpux_vec (const bfd_target *vec)
4441{
4442 extern const bfd_target bfd_elfNN_ia64_hpux_big_vec;
4443 return (vec == & bfd_elfNN_ia64_hpux_big_vec);
4444}
4445
fcf12726
AM		 4446static void
4447elfNN_hpux_post_process_headers (abfd, info)
4448 bfd *abfd;
4449 struct bfd_link_info *info ATTRIBUTE_UNUSED;
4450{
4451 Elf_Internal_Ehdr *i_ehdrp = elf_elfheader (abfd);
4452
4453 i_ehdrp->e_ident[EI_OSABI] = ELFOSABI_HPUX;
4454 i_ehdrp->e_ident[EI_ABIVERSION] = 1;
4455}
d9cf1b54
AM		 4456
4457boolean
af746e92 4458elfNN_hpux_backend_section_from_bfd_section (abfd, sec, retval)
d9cf1b54 4459 bfd *abfd ATTRIBUTE_UNUSED;
d9cf1b54
AM		 4460 asection *sec;
4461 int *retval;
4462{
4463 if (bfd_is_com_section (sec))
4464 {
4465 *retval = SHN_IA_64_ANSI_COMMON;
4466 return true;
4467 }
4468 return false;
4469}
800eeca4 4470\f
bbe66d08
JW		 4471#define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
4472#define TARGET_LITTLE_NAME "elfNN-ia64-little"
4473#define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec
4474#define TARGET_BIG_NAME "elfNN-ia64-big"
800eeca4
JW		 4475#define ELF_ARCH bfd_arch_ia64
4476#define ELF_MACHINE_CODE EM_IA_64
4477#define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
4478#define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
4479#define ELF_MAXPAGESIZE 0x10000 /* 64KB */
4480
4481#define elf_backend_section_from_shdr \
bbe66d08 4482 elfNN_ia64_section_from_shdr
fa152c49 4483#define elf_backend_section_flags \
bbe66d08 4484 elfNN_ia64_section_flags
800eeca4 4485#define elf_backend_fake_sections \
bbe66d08 4486 elfNN_ia64_fake_sections
81545d45
RH		 4487#define elf_backend_final_write_processing \
4488 elfNN_ia64_final_write_processing
800eeca4 4489#define elf_backend_add_symbol_hook \
bbe66d08 4490 elfNN_ia64_add_symbol_hook
800eeca4 4491#define elf_backend_additional_program_headers \
bbe66d08 4492 elfNN_ia64_additional_program_headers
800eeca4 4493#define elf_backend_modify_segment_map \
bbe66d08 4494 elfNN_ia64_modify_segment_map
800eeca4 4495#define elf_info_to_howto \
bbe66d08 4496 elfNN_ia64_info_to_howto
800eeca4 4497
bbe66d08
JW		 4498#define bfd_elfNN_bfd_reloc_type_lookup \
4499 elfNN_ia64_reloc_type_lookup
4500#define bfd_elfNN_bfd_is_local_label_name \
4501 elfNN_ia64_is_local_label_name
4502#define bfd_elfNN_bfd_relax_section \
4503 elfNN_ia64_relax_section
800eeca4
JW		 4504
4505/* Stuff for the BFD linker: */
bbe66d08
JW		 4506#define bfd_elfNN_bfd_link_hash_table_create \
4507 elfNN_ia64_hash_table_create
800eeca4 4508#define elf_backend_create_dynamic_sections \
bbe66d08 4509 elfNN_ia64_create_dynamic_sections
800eeca4 4510#define elf_backend_check_relocs \
bbe66d08 4511 elfNN_ia64_check_relocs
800eeca4 4512#define elf_backend_adjust_dynamic_symbol \
bbe66d08 4513 elfNN_ia64_adjust_dynamic_symbol
800eeca4 4514#define elf_backend_size_dynamic_sections \
bbe66d08 4515 elfNN_ia64_size_dynamic_sections
800eeca4 4516#define elf_backend_relocate_section \
bbe66d08 4517 elfNN_ia64_relocate_section
800eeca4 4518#define elf_backend_finish_dynamic_symbol \
bbe66d08 4519 elfNN_ia64_finish_dynamic_symbol
800eeca4 4520#define elf_backend_finish_dynamic_sections \
bbe66d08
JW		 4521 elfNN_ia64_finish_dynamic_sections
4522#define bfd_elfNN_bfd_final_link \
4523 elfNN_ia64_final_link
4524
bbe66d08
JW		 4525#define bfd_elfNN_bfd_merge_private_bfd_data \
4526 elfNN_ia64_merge_private_bfd_data
4527#define bfd_elfNN_bfd_set_private_flags \
4528 elfNN_ia64_set_private_flags
4529#define bfd_elfNN_bfd_print_private_bfd_data \
4530 elfNN_ia64_print_private_bfd_data
800eeca4
JW		 4531
4532#define elf_backend_plt_readonly 1
4533#define elf_backend_want_plt_sym 0
4534#define elf_backend_plt_alignment 5
4535#define elf_backend_got_header_size 0
4536#define elf_backend_plt_header_size PLT_HEADER_SIZE
4537#define elf_backend_want_got_plt 1
4538#define elf_backend_may_use_rel_p 1
4539#define elf_backend_may_use_rela_p 1
4540#define elf_backend_default_use_rela_p 1
4541#define elf_backend_want_dynbss 0
bbe66d08
JW		 4542#define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
4543#define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
db6751f2 4544#define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
b491616a 4545#define elf_backend_rela_normal 1
800eeca4 4546
bbe66d08 4547#include "elfNN-target.h"
7b6dab7f
TW		 4548
4549/* AIX-specific vectors. */
4550
4551#undef TARGET_LITTLE_SYM
4552#define TARGET_LITTLE_SYM bfd_elfNN_ia64_aix_little_vec
4553#undef TARGET_LITTLE_NAME
4554#define TARGET_LITTLE_NAME "elfNN-ia64-aix-little"
4555#undef TARGET_BIG_SYM
4556#define TARGET_BIG_SYM bfd_elfNN_ia64_aix_big_vec
4557#undef TARGET_BIG_NAME
4558#define TARGET_BIG_NAME "elfNN-ia64-aix-big"
4559
4560#undef elf_backend_add_symbol_hook
4561#define elf_backend_add_symbol_hook elfNN_ia64_aix_add_symbol_hook
4562
4563#undef bfd_elfNN_bfd_link_add_symbols
4564#define bfd_elfNN_bfd_link_add_symbols elfNN_ia64_aix_link_add_symbols
4565
4566#define elfNN_bed elfNN_ia64_aix_bed
4567
4568#include "elfNN-target.h"
fcf12726
AM		 4569
4570/* HPUX-specific vectors. */
4571
4572#undef TARGET_LITTLE_SYM
4573#undef TARGET_LITTLE_NAME
4574#undef TARGET_BIG_SYM
4575#define TARGET_BIG_SYM bfd_elfNN_ia64_hpux_big_vec
4576#undef TARGET_BIG_NAME
4577#define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
4578
254ed743
NC		 4579/* We need to undo the AIX specific functions. */
4580
4581#undef elf_backend_add_symbol_hook
4582#define elf_backend_add_symbol_hook elfNN_ia64_add_symbol_hook
4583
4584#undef bfd_elfNN_bfd_link_add_symbols
4585#define bfd_elfNN_bfd_link_add_symbols _bfd_generic_link_add_symbols
4586
4587/* These are HP-UX specific functions. */
4588
fcf12726
AM		 4589#undef elf_backend_post_process_headers
4590#define elf_backend_post_process_headers elfNN_hpux_post_process_headers
4591
d9cf1b54
AM		 4592#undef elf_backend_section_from_bfd_section
4593#define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
4594
fcf12726
AM		 4595#undef ELF_MAXPAGESIZE
4596#define ELF_MAXPAGESIZE 0x1000 /* 1K */
4597
4598#undef elfNN_bed
4599#define elfNN_bed elfNN_ia64_hpux_bed
4600
4601#include "elfNN-target.h"
GDB Binutils - Deliverables
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