1 /* IA-64 support for 64-bit ELF
2 Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
3 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
25 #include "opcode/ia64.h"
30 /* THE RULES for all the stuff the linker creates --
32 GOT Entries created in response to LTOFF or LTOFF_FPTR
33 relocations. Dynamic relocs created for dynamic
34 symbols in an application; REL relocs for locals
37 FPTR The canonical function descriptor. Created for local
38 symbols in applications. Descriptors for dynamic symbols
39 and local symbols in shared libraries are created by
40 ld.so. Thus there are no dynamic relocs against these
41 objects. The FPTR relocs for such _are_ passed through
42 to the dynamic relocation tables.
44 FULL_PLT Created for a PCREL21B relocation against a dynamic symbol.
45 Requires the creation of a PLTOFF entry. This does not
46 require any dynamic relocations.
48 PLTOFF Created by PLTOFF relocations. For local symbols, this
49 is an alternate function descriptor, and in shared libraries
50 requires two REL relocations. Note that this cannot be
51 transformed into an FPTR relocation, since it must be in
52 range of the GP. For dynamic symbols, this is a function
53 descriptor for a MIN_PLT entry, and requires one IPLT reloc.
55 MIN_PLT Created by PLTOFF entries against dynamic symbols. This
56 does not reqire dynamic relocations. */
58 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
60 typedef struct bfd_hash_entry
*(*new_hash_entry_func
)
61 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
63 /* In dynamically (linker-) created sections, we generally need to keep track
64 of the place a symbol or expression got allocated to. This is done via hash
65 tables that store entries of the following type. */
67 struct elfNN_ia64_dyn_sym_info
69 /* The addend for which this entry is relevant. */
72 /* Next addend in the list. */
73 struct elfNN_ia64_dyn_sym_info
*next
;
77 bfd_vma pltoff_offset
;
81 bfd_vma dtpmod_offset
;
82 bfd_vma dtprel_offset
;
84 /* The symbol table entry, if any, that this was derrived from. */
85 struct elf_link_hash_entry
*h
;
87 /* Used to count non-got, non-plt relocations for delayed sizing
88 of relocation sections. */
89 struct elfNN_ia64_dyn_reloc_entry
91 struct elfNN_ia64_dyn_reloc_entry
*next
;
97 /* TRUE when the section contents have been updated. */
98 unsigned got_done
: 1;
99 unsigned fptr_done
: 1;
100 unsigned pltoff_done
: 1;
101 unsigned tprel_done
: 1;
102 unsigned dtpmod_done
: 1;
103 unsigned dtprel_done
: 1;
105 /* TRUE for the different kinds of linker data we want created. */
106 unsigned want_got
: 1;
107 unsigned want_gotx
: 1;
108 unsigned want_fptr
: 1;
109 unsigned want_ltoff_fptr
: 1;
110 unsigned want_plt
: 1;
111 unsigned want_plt2
: 1;
112 unsigned want_pltoff
: 1;
113 unsigned want_tprel
: 1;
114 unsigned want_dtpmod
: 1;
115 unsigned want_dtprel
: 1;
118 struct elfNN_ia64_local_hash_entry
122 struct elfNN_ia64_dyn_sym_info
*info
;
124 /* TRUE if this hash entry's addends was translated for
125 SHF_MERGE optimization. */
126 unsigned sec_merge_done
: 1;
129 struct elfNN_ia64_link_hash_entry
131 struct elf_link_hash_entry root
;
132 struct elfNN_ia64_dyn_sym_info
*info
;
135 struct elfNN_ia64_link_hash_table
137 /* The main hash table. */
138 struct elf_link_hash_table root
;
140 asection
*got_sec
; /* the linkage table section (or NULL) */
141 asection
*rel_got_sec
; /* dynamic relocation section for same */
142 asection
*fptr_sec
; /* function descriptor table (or NULL) */
143 asection
*rel_fptr_sec
; /* dynamic relocation section for same */
144 asection
*plt_sec
; /* the primary plt section (or NULL) */
145 asection
*pltoff_sec
; /* private descriptors for plt (or NULL) */
146 asection
*rel_pltoff_sec
; /* dynamic relocation section for same */
148 bfd_size_type minplt_entries
; /* number of minplt entries */
149 unsigned reltext
: 1; /* are there relocs against readonly sections? */
150 unsigned self_dtpmod_done
: 1;/* has self DTPMOD entry been finished? */
151 bfd_vma self_dtpmod_offset
; /* .got offset to self DTPMOD entry */
153 htab_t loc_hash_table
;
154 void *loc_hash_memory
;
157 struct elfNN_ia64_allocate_data
159 struct bfd_link_info
*info
;
163 #define elfNN_ia64_hash_table(p) \
164 ((struct elfNN_ia64_link_hash_table *) ((p)->hash))
166 static bfd_reloc_status_type elfNN_ia64_reloc
167 PARAMS ((bfd
*abfd
, arelent
*reloc
, asymbol
*sym
, PTR data
,
168 asection
*input_section
, bfd
*output_bfd
, char **error_message
));
169 static reloc_howto_type
* lookup_howto
170 PARAMS ((unsigned int rtype
));
171 static reloc_howto_type
*elfNN_ia64_reloc_type_lookup
172 PARAMS ((bfd
*abfd
, bfd_reloc_code_real_type bfd_code
));
173 static void elfNN_ia64_info_to_howto
174 PARAMS ((bfd
*abfd
, arelent
*bfd_reloc
, Elf_Internal_Rela
*elf_reloc
));
175 static bfd_boolean elfNN_ia64_relax_section
176 PARAMS((bfd
*abfd
, asection
*sec
, struct bfd_link_info
*link_info
,
177 bfd_boolean
*again
));
178 static void elfNN_ia64_relax_ldxmov
179 PARAMS((bfd
*abfd
, bfd_byte
*contents
, bfd_vma off
));
180 static bfd_boolean is_unwind_section_name
181 PARAMS ((bfd
*abfd
, const char *));
182 static bfd_boolean elfNN_ia64_section_from_shdr
183 PARAMS ((bfd
*, Elf_Internal_Shdr
*, const char *));
184 static bfd_boolean elfNN_ia64_section_flags
185 PARAMS ((flagword
*, Elf_Internal_Shdr
*));
186 static bfd_boolean elfNN_ia64_fake_sections
187 PARAMS ((bfd
*abfd
, Elf_Internal_Shdr
*hdr
, asection
*sec
));
188 static void elfNN_ia64_final_write_processing
189 PARAMS ((bfd
*abfd
, bfd_boolean linker
));
190 static bfd_boolean elfNN_ia64_add_symbol_hook
191 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, const Elf_Internal_Sym
*sym
,
192 const char **namep
, flagword
*flagsp
, asection
**secp
,
194 static int elfNN_ia64_additional_program_headers
195 PARAMS ((bfd
*abfd
));
196 static bfd_boolean elfNN_ia64_modify_segment_map
198 static bfd_boolean elfNN_ia64_is_local_label_name
199 PARAMS ((bfd
*abfd
, const char *name
));
200 static bfd_boolean elfNN_ia64_dynamic_symbol_p
201 PARAMS ((struct elf_link_hash_entry
*h
, struct bfd_link_info
*info
, int));
202 static struct bfd_hash_entry
*elfNN_ia64_new_elf_hash_entry
203 PARAMS ((struct bfd_hash_entry
*entry
, struct bfd_hash_table
*table
,
204 const char *string
));
205 static void elfNN_ia64_hash_copy_indirect
206 PARAMS ((const struct elf_backend_data
*, struct elf_link_hash_entry
*,
207 struct elf_link_hash_entry
*));
208 static void elfNN_ia64_hash_hide_symbol
209 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*, bfd_boolean
));
210 static hashval_t elfNN_ia64_local_htab_hash
PARAMS ((const void *));
211 static int elfNN_ia64_local_htab_eq
PARAMS ((const void *ptr1
,
213 static struct bfd_link_hash_table
*elfNN_ia64_hash_table_create
214 PARAMS ((bfd
*abfd
));
215 static void elfNN_ia64_hash_table_free
216 PARAMS ((struct bfd_link_hash_table
*hash
));
217 static bfd_boolean elfNN_ia64_global_dyn_sym_thunk
218 PARAMS ((struct bfd_hash_entry
*, PTR
));
219 static int elfNN_ia64_local_dyn_sym_thunk
220 PARAMS ((void **, PTR
));
221 static void elfNN_ia64_dyn_sym_traverse
222 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
223 bfd_boolean (*func
) (struct elfNN_ia64_dyn_sym_info
*, PTR
),
225 static bfd_boolean elfNN_ia64_create_dynamic_sections
226 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
227 static struct elfNN_ia64_local_hash_entry
* get_local_sym_hash
228 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
229 bfd
*abfd
, const Elf_Internal_Rela
*rel
, bfd_boolean create
));
230 static struct elfNN_ia64_dyn_sym_info
* get_dyn_sym_info
231 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
232 struct elf_link_hash_entry
*h
,
233 bfd
*abfd
, const Elf_Internal_Rela
*rel
, bfd_boolean create
));
234 static asection
*get_got
235 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
236 struct elfNN_ia64_link_hash_table
*ia64_info
));
237 static asection
*get_fptr
238 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
239 struct elfNN_ia64_link_hash_table
*ia64_info
));
240 static asection
*get_pltoff
241 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
242 struct elfNN_ia64_link_hash_table
*ia64_info
));
243 static asection
*get_reloc_section
244 PARAMS ((bfd
*abfd
, struct elfNN_ia64_link_hash_table
*ia64_info
,
245 asection
*sec
, bfd_boolean create
));
246 static bfd_boolean count_dyn_reloc
247 PARAMS ((bfd
*abfd
, struct elfNN_ia64_dyn_sym_info
*dyn_i
,
248 asection
*srel
, int type
));
249 static bfd_boolean elfNN_ia64_check_relocs
250 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
251 const Elf_Internal_Rela
*relocs
));
252 static bfd_boolean elfNN_ia64_adjust_dynamic_symbol
253 PARAMS ((struct bfd_link_info
*info
, struct elf_link_hash_entry
*h
));
254 static long global_sym_index
255 PARAMS ((struct elf_link_hash_entry
*h
));
256 static bfd_boolean allocate_fptr
257 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
258 static bfd_boolean allocate_global_data_got
259 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
260 static bfd_boolean allocate_global_fptr_got
261 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
262 static bfd_boolean allocate_local_got
263 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
264 static bfd_boolean allocate_pltoff_entries
265 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
266 static bfd_boolean allocate_plt_entries
267 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
268 static bfd_boolean allocate_plt2_entries
269 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
270 static bfd_boolean allocate_dynrel_entries
271 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
272 static bfd_boolean elfNN_ia64_size_dynamic_sections
273 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
));
274 static bfd_reloc_status_type elfNN_ia64_install_value
275 PARAMS ((bfd
*abfd
, bfd_byte
*hit_addr
, bfd_vma val
, unsigned int r_type
));
276 static void elfNN_ia64_install_dyn_reloc
277 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
278 asection
*srel
, bfd_vma offset
, unsigned int type
,
279 long dynindx
, bfd_vma addend
));
280 static bfd_vma set_got_entry
281 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
282 struct elfNN_ia64_dyn_sym_info
*dyn_i
, long dynindx
,
283 bfd_vma addend
, bfd_vma value
, unsigned int dyn_r_type
));
284 static bfd_vma set_fptr_entry
285 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
286 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
288 static bfd_vma set_pltoff_entry
289 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
290 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
291 bfd_vma value
, bfd_boolean
));
292 static bfd_vma elfNN_ia64_tprel_base
293 PARAMS ((struct bfd_link_info
*info
));
294 static bfd_vma elfNN_ia64_dtprel_base
295 PARAMS ((struct bfd_link_info
*info
));
296 static int elfNN_ia64_unwind_entry_compare
297 PARAMS ((const PTR
, const PTR
));
298 static bfd_boolean elfNN_ia64_choose_gp
299 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
300 static bfd_boolean elfNN_ia64_final_link
301 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
302 static bfd_boolean elfNN_ia64_relocate_section
303 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
, bfd
*input_bfd
,
304 asection
*input_section
, bfd_byte
*contents
,
305 Elf_Internal_Rela
*relocs
, Elf_Internal_Sym
*local_syms
,
306 asection
**local_sections
));
307 static bfd_boolean elfNN_ia64_finish_dynamic_symbol
308 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
,
309 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*sym
));
310 static bfd_boolean elfNN_ia64_finish_dynamic_sections
311 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
312 static bfd_boolean elfNN_ia64_set_private_flags
313 PARAMS ((bfd
*abfd
, flagword flags
));
314 static bfd_boolean elfNN_ia64_merge_private_bfd_data
315 PARAMS ((bfd
*ibfd
, bfd
*obfd
));
316 static bfd_boolean elfNN_ia64_print_private_bfd_data
317 PARAMS ((bfd
*abfd
, PTR ptr
));
318 static enum elf_reloc_type_class elfNN_ia64_reloc_type_class
319 PARAMS ((const Elf_Internal_Rela
*));
320 static bfd_boolean elfNN_ia64_hpux_vec
321 PARAMS ((const bfd_target
*vec
));
322 static void elfNN_hpux_post_process_headers
323 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
324 bfd_boolean elfNN_hpux_backend_section_from_bfd_section
325 PARAMS ((bfd
*abfd
, asection
*sec
, int *retval
));
327 /* ia64-specific relocation. */
329 /* Perform a relocation. Not much to do here as all the hard work is
330 done in elfNN_ia64_final_link_relocate. */
331 static bfd_reloc_status_type
332 elfNN_ia64_reloc (abfd
, reloc
, sym
, data
, input_section
,
333 output_bfd
, error_message
)
334 bfd
*abfd ATTRIBUTE_UNUSED
;
336 asymbol
*sym ATTRIBUTE_UNUSED
;
337 PTR data ATTRIBUTE_UNUSED
;
338 asection
*input_section
;
340 char **error_message
;
344 reloc
->address
+= input_section
->output_offset
;
348 if (input_section
->flags
& SEC_DEBUGGING
)
349 return bfd_reloc_continue
;
351 *error_message
= "Unsupported call to elfNN_ia64_reloc";
352 return bfd_reloc_notsupported
;
355 #define IA64_HOWTO(TYPE, NAME, SIZE, PCREL, IN) \
356 HOWTO (TYPE, 0, SIZE, 0, PCREL, 0, complain_overflow_signed, \
357 elfNN_ia64_reloc, NAME, FALSE, 0, -1, IN)
359 /* This table has to be sorted according to increasing number of the
361 static reloc_howto_type ia64_howto_table
[] =
363 IA64_HOWTO (R_IA64_NONE
, "NONE", 0, FALSE
, TRUE
),
365 IA64_HOWTO (R_IA64_IMM14
, "IMM14", 0, FALSE
, TRUE
),
366 IA64_HOWTO (R_IA64_IMM22
, "IMM22", 0, FALSE
, TRUE
),
367 IA64_HOWTO (R_IA64_IMM64
, "IMM64", 0, FALSE
, TRUE
),
368 IA64_HOWTO (R_IA64_DIR32MSB
, "DIR32MSB", 2, FALSE
, TRUE
),
369 IA64_HOWTO (R_IA64_DIR32LSB
, "DIR32LSB", 2, FALSE
, TRUE
),
370 IA64_HOWTO (R_IA64_DIR64MSB
, "DIR64MSB", 4, FALSE
, TRUE
),
371 IA64_HOWTO (R_IA64_DIR64LSB
, "DIR64LSB", 4, FALSE
, TRUE
),
373 IA64_HOWTO (R_IA64_GPREL22
, "GPREL22", 0, FALSE
, TRUE
),
374 IA64_HOWTO (R_IA64_GPREL64I
, "GPREL64I", 0, FALSE
, TRUE
),
375 IA64_HOWTO (R_IA64_GPREL32MSB
, "GPREL32MSB", 2, FALSE
, TRUE
),
376 IA64_HOWTO (R_IA64_GPREL32LSB
, "GPREL32LSB", 2, FALSE
, TRUE
),
377 IA64_HOWTO (R_IA64_GPREL64MSB
, "GPREL64MSB", 4, FALSE
, TRUE
),
378 IA64_HOWTO (R_IA64_GPREL64LSB
, "GPREL64LSB", 4, FALSE
, TRUE
),
380 IA64_HOWTO (R_IA64_LTOFF22
, "LTOFF22", 0, FALSE
, TRUE
),
381 IA64_HOWTO (R_IA64_LTOFF64I
, "LTOFF64I", 0, FALSE
, TRUE
),
383 IA64_HOWTO (R_IA64_PLTOFF22
, "PLTOFF22", 0, FALSE
, TRUE
),
384 IA64_HOWTO (R_IA64_PLTOFF64I
, "PLTOFF64I", 0, FALSE
, TRUE
),
385 IA64_HOWTO (R_IA64_PLTOFF64MSB
, "PLTOFF64MSB", 4, FALSE
, TRUE
),
386 IA64_HOWTO (R_IA64_PLTOFF64LSB
, "PLTOFF64LSB", 4, FALSE
, TRUE
),
388 IA64_HOWTO (R_IA64_FPTR64I
, "FPTR64I", 0, FALSE
, TRUE
),
389 IA64_HOWTO (R_IA64_FPTR32MSB
, "FPTR32MSB", 2, FALSE
, TRUE
),
390 IA64_HOWTO (R_IA64_FPTR32LSB
, "FPTR32LSB", 2, FALSE
, TRUE
),
391 IA64_HOWTO (R_IA64_FPTR64MSB
, "FPTR64MSB", 4, FALSE
, TRUE
),
392 IA64_HOWTO (R_IA64_FPTR64LSB
, "FPTR64LSB", 4, FALSE
, TRUE
),
394 IA64_HOWTO (R_IA64_PCREL60B
, "PCREL60B", 0, TRUE
, TRUE
),
395 IA64_HOWTO (R_IA64_PCREL21B
, "PCREL21B", 0, TRUE
, TRUE
),
396 IA64_HOWTO (R_IA64_PCREL21M
, "PCREL21M", 0, TRUE
, TRUE
),
397 IA64_HOWTO (R_IA64_PCREL21F
, "PCREL21F", 0, TRUE
, TRUE
),
398 IA64_HOWTO (R_IA64_PCREL32MSB
, "PCREL32MSB", 2, TRUE
, TRUE
),
399 IA64_HOWTO (R_IA64_PCREL32LSB
, "PCREL32LSB", 2, TRUE
, TRUE
),
400 IA64_HOWTO (R_IA64_PCREL64MSB
, "PCREL64MSB", 4, TRUE
, TRUE
),
401 IA64_HOWTO (R_IA64_PCREL64LSB
, "PCREL64LSB", 4, TRUE
, TRUE
),
403 IA64_HOWTO (R_IA64_LTOFF_FPTR22
, "LTOFF_FPTR22", 0, FALSE
, TRUE
),
404 IA64_HOWTO (R_IA64_LTOFF_FPTR64I
, "LTOFF_FPTR64I", 0, FALSE
, TRUE
),
405 IA64_HOWTO (R_IA64_LTOFF_FPTR32MSB
, "LTOFF_FPTR32MSB", 2, FALSE
, TRUE
),
406 IA64_HOWTO (R_IA64_LTOFF_FPTR32LSB
, "LTOFF_FPTR32LSB", 2, FALSE
, TRUE
),
407 IA64_HOWTO (R_IA64_LTOFF_FPTR64MSB
, "LTOFF_FPTR64MSB", 4, FALSE
, TRUE
),
408 IA64_HOWTO (R_IA64_LTOFF_FPTR64LSB
, "LTOFF_FPTR64LSB", 4, FALSE
, TRUE
),
410 IA64_HOWTO (R_IA64_SEGREL32MSB
, "SEGREL32MSB", 2, FALSE
, TRUE
),
411 IA64_HOWTO (R_IA64_SEGREL32LSB
, "SEGREL32LSB", 2, FALSE
, TRUE
),
412 IA64_HOWTO (R_IA64_SEGREL64MSB
, "SEGREL64MSB", 4, FALSE
, TRUE
),
413 IA64_HOWTO (R_IA64_SEGREL64LSB
, "SEGREL64LSB", 4, FALSE
, TRUE
),
415 IA64_HOWTO (R_IA64_SECREL32MSB
, "SECREL32MSB", 2, FALSE
, TRUE
),
416 IA64_HOWTO (R_IA64_SECREL32LSB
, "SECREL32LSB", 2, FALSE
, TRUE
),
417 IA64_HOWTO (R_IA64_SECREL64MSB
, "SECREL64MSB", 4, FALSE
, TRUE
),
418 IA64_HOWTO (R_IA64_SECREL64LSB
, "SECREL64LSB", 4, FALSE
, TRUE
),
420 IA64_HOWTO (R_IA64_REL32MSB
, "REL32MSB", 2, FALSE
, TRUE
),
421 IA64_HOWTO (R_IA64_REL32LSB
, "REL32LSB", 2, FALSE
, TRUE
),
422 IA64_HOWTO (R_IA64_REL64MSB
, "REL64MSB", 4, FALSE
, TRUE
),
423 IA64_HOWTO (R_IA64_REL64LSB
, "REL64LSB", 4, FALSE
, TRUE
),
425 IA64_HOWTO (R_IA64_LTV32MSB
, "LTV32MSB", 2, FALSE
, TRUE
),
426 IA64_HOWTO (R_IA64_LTV32LSB
, "LTV32LSB", 2, FALSE
, TRUE
),
427 IA64_HOWTO (R_IA64_LTV64MSB
, "LTV64MSB", 4, FALSE
, TRUE
),
428 IA64_HOWTO (R_IA64_LTV64LSB
, "LTV64LSB", 4, FALSE
, TRUE
),
430 IA64_HOWTO (R_IA64_PCREL21BI
, "PCREL21BI", 0, TRUE
, TRUE
),
431 IA64_HOWTO (R_IA64_PCREL22
, "PCREL22", 0, TRUE
, TRUE
),
432 IA64_HOWTO (R_IA64_PCREL64I
, "PCREL64I", 0, TRUE
, TRUE
),
434 IA64_HOWTO (R_IA64_IPLTMSB
, "IPLTMSB", 4, FALSE
, TRUE
),
435 IA64_HOWTO (R_IA64_IPLTLSB
, "IPLTLSB", 4, FALSE
, TRUE
),
436 IA64_HOWTO (R_IA64_COPY
, "COPY", 4, FALSE
, TRUE
),
437 IA64_HOWTO (R_IA64_LTOFF22X
, "LTOFF22X", 0, FALSE
, TRUE
),
438 IA64_HOWTO (R_IA64_LDXMOV
, "LDXMOV", 0, FALSE
, TRUE
),
440 IA64_HOWTO (R_IA64_TPREL14
, "TPREL14", 0, FALSE
, FALSE
),
441 IA64_HOWTO (R_IA64_TPREL22
, "TPREL22", 0, FALSE
, FALSE
),
442 IA64_HOWTO (R_IA64_TPREL64I
, "TPREL64I", 0, FALSE
, FALSE
),
443 IA64_HOWTO (R_IA64_TPREL64MSB
, "TPREL64MSB", 4, FALSE
, FALSE
),
444 IA64_HOWTO (R_IA64_TPREL64LSB
, "TPREL64LSB", 4, FALSE
, FALSE
),
445 IA64_HOWTO (R_IA64_LTOFF_TPREL22
, "LTOFF_TPREL22", 0, FALSE
, FALSE
),
447 IA64_HOWTO (R_IA64_DTPMOD64MSB
, "TPREL64MSB", 4, FALSE
, FALSE
),
448 IA64_HOWTO (R_IA64_DTPMOD64LSB
, "TPREL64LSB", 4, FALSE
, FALSE
),
449 IA64_HOWTO (R_IA64_LTOFF_DTPMOD22
, "LTOFF_DTPMOD22", 0, FALSE
, FALSE
),
451 IA64_HOWTO (R_IA64_DTPREL14
, "DTPREL14", 0, FALSE
, FALSE
),
452 IA64_HOWTO (R_IA64_DTPREL22
, "DTPREL22", 0, FALSE
, FALSE
),
453 IA64_HOWTO (R_IA64_DTPREL64I
, "DTPREL64I", 0, FALSE
, FALSE
),
454 IA64_HOWTO (R_IA64_DTPREL32MSB
, "DTPREL32MSB", 2, FALSE
, FALSE
),
455 IA64_HOWTO (R_IA64_DTPREL32LSB
, "DTPREL32LSB", 2, FALSE
, FALSE
),
456 IA64_HOWTO (R_IA64_DTPREL64MSB
, "DTPREL64MSB", 4, FALSE
, FALSE
),
457 IA64_HOWTO (R_IA64_DTPREL64LSB
, "DTPREL64LSB", 4, FALSE
, FALSE
),
458 IA64_HOWTO (R_IA64_LTOFF_DTPREL22
, "LTOFF_DTPREL22", 0, FALSE
, FALSE
),
461 static unsigned char elf_code_to_howto_index
[R_IA64_MAX_RELOC_CODE
+ 1];
463 /* Given a BFD reloc type, return the matching HOWTO structure. */
465 static reloc_howto_type
*
469 static int inited
= 0;
476 memset (elf_code_to_howto_index
, 0xff, sizeof (elf_code_to_howto_index
));
477 for (i
= 0; i
< NELEMS (ia64_howto_table
); ++i
)
478 elf_code_to_howto_index
[ia64_howto_table
[i
].type
] = i
;
481 BFD_ASSERT (rtype
<= R_IA64_MAX_RELOC_CODE
);
482 i
= elf_code_to_howto_index
[rtype
];
483 if (i
>= NELEMS (ia64_howto_table
))
485 return ia64_howto_table
+ i
;
488 static reloc_howto_type
*
489 elfNN_ia64_reloc_type_lookup (abfd
, bfd_code
)
490 bfd
*abfd ATTRIBUTE_UNUSED
;
491 bfd_reloc_code_real_type bfd_code
;
497 case BFD_RELOC_NONE
: rtype
= R_IA64_NONE
; break;
499 case BFD_RELOC_IA64_IMM14
: rtype
= R_IA64_IMM14
; break;
500 case BFD_RELOC_IA64_IMM22
: rtype
= R_IA64_IMM22
; break;
501 case BFD_RELOC_IA64_IMM64
: rtype
= R_IA64_IMM64
; break;
503 case BFD_RELOC_IA64_DIR32MSB
: rtype
= R_IA64_DIR32MSB
; break;
504 case BFD_RELOC_IA64_DIR32LSB
: rtype
= R_IA64_DIR32LSB
; break;
505 case BFD_RELOC_IA64_DIR64MSB
: rtype
= R_IA64_DIR64MSB
; break;
506 case BFD_RELOC_IA64_DIR64LSB
: rtype
= R_IA64_DIR64LSB
; break;
508 case BFD_RELOC_IA64_GPREL22
: rtype
= R_IA64_GPREL22
; break;
509 case BFD_RELOC_IA64_GPREL64I
: rtype
= R_IA64_GPREL64I
; break;
510 case BFD_RELOC_IA64_GPREL32MSB
: rtype
= R_IA64_GPREL32MSB
; break;
511 case BFD_RELOC_IA64_GPREL32LSB
: rtype
= R_IA64_GPREL32LSB
; break;
512 case BFD_RELOC_IA64_GPREL64MSB
: rtype
= R_IA64_GPREL64MSB
; break;
513 case BFD_RELOC_IA64_GPREL64LSB
: rtype
= R_IA64_GPREL64LSB
; break;
515 case BFD_RELOC_IA64_LTOFF22
: rtype
= R_IA64_LTOFF22
; break;
516 case BFD_RELOC_IA64_LTOFF64I
: rtype
= R_IA64_LTOFF64I
; break;
518 case BFD_RELOC_IA64_PLTOFF22
: rtype
= R_IA64_PLTOFF22
; break;
519 case BFD_RELOC_IA64_PLTOFF64I
: rtype
= R_IA64_PLTOFF64I
; break;
520 case BFD_RELOC_IA64_PLTOFF64MSB
: rtype
= R_IA64_PLTOFF64MSB
; break;
521 case BFD_RELOC_IA64_PLTOFF64LSB
: rtype
= R_IA64_PLTOFF64LSB
; break;
522 case BFD_RELOC_IA64_FPTR64I
: rtype
= R_IA64_FPTR64I
; break;
523 case BFD_RELOC_IA64_FPTR32MSB
: rtype
= R_IA64_FPTR32MSB
; break;
524 case BFD_RELOC_IA64_FPTR32LSB
: rtype
= R_IA64_FPTR32LSB
; break;
525 case BFD_RELOC_IA64_FPTR64MSB
: rtype
= R_IA64_FPTR64MSB
; break;
526 case BFD_RELOC_IA64_FPTR64LSB
: rtype
= R_IA64_FPTR64LSB
; break;
528 case BFD_RELOC_IA64_PCREL21B
: rtype
= R_IA64_PCREL21B
; break;
529 case BFD_RELOC_IA64_PCREL21BI
: rtype
= R_IA64_PCREL21BI
; break;
530 case BFD_RELOC_IA64_PCREL21M
: rtype
= R_IA64_PCREL21M
; break;
531 case BFD_RELOC_IA64_PCREL21F
: rtype
= R_IA64_PCREL21F
; break;
532 case BFD_RELOC_IA64_PCREL22
: rtype
= R_IA64_PCREL22
; break;
533 case BFD_RELOC_IA64_PCREL60B
: rtype
= R_IA64_PCREL60B
; break;
534 case BFD_RELOC_IA64_PCREL64I
: rtype
= R_IA64_PCREL64I
; break;
535 case BFD_RELOC_IA64_PCREL32MSB
: rtype
= R_IA64_PCREL32MSB
; break;
536 case BFD_RELOC_IA64_PCREL32LSB
: rtype
= R_IA64_PCREL32LSB
; break;
537 case BFD_RELOC_IA64_PCREL64MSB
: rtype
= R_IA64_PCREL64MSB
; break;
538 case BFD_RELOC_IA64_PCREL64LSB
: rtype
= R_IA64_PCREL64LSB
; break;
540 case BFD_RELOC_IA64_LTOFF_FPTR22
: rtype
= R_IA64_LTOFF_FPTR22
; break;
541 case BFD_RELOC_IA64_LTOFF_FPTR64I
: rtype
= R_IA64_LTOFF_FPTR64I
; break;
542 case BFD_RELOC_IA64_LTOFF_FPTR32MSB
: rtype
= R_IA64_LTOFF_FPTR32MSB
; break;
543 case BFD_RELOC_IA64_LTOFF_FPTR32LSB
: rtype
= R_IA64_LTOFF_FPTR32LSB
; break;
544 case BFD_RELOC_IA64_LTOFF_FPTR64MSB
: rtype
= R_IA64_LTOFF_FPTR64MSB
; break;
545 case BFD_RELOC_IA64_LTOFF_FPTR64LSB
: rtype
= R_IA64_LTOFF_FPTR64LSB
; break;
547 case BFD_RELOC_IA64_SEGREL32MSB
: rtype
= R_IA64_SEGREL32MSB
; break;
548 case BFD_RELOC_IA64_SEGREL32LSB
: rtype
= R_IA64_SEGREL32LSB
; break;
549 case BFD_RELOC_IA64_SEGREL64MSB
: rtype
= R_IA64_SEGREL64MSB
; break;
550 case BFD_RELOC_IA64_SEGREL64LSB
: rtype
= R_IA64_SEGREL64LSB
; break;
552 case BFD_RELOC_IA64_SECREL32MSB
: rtype
= R_IA64_SECREL32MSB
; break;
553 case BFD_RELOC_IA64_SECREL32LSB
: rtype
= R_IA64_SECREL32LSB
; break;
554 case BFD_RELOC_IA64_SECREL64MSB
: rtype
= R_IA64_SECREL64MSB
; break;
555 case BFD_RELOC_IA64_SECREL64LSB
: rtype
= R_IA64_SECREL64LSB
; break;
557 case BFD_RELOC_IA64_REL32MSB
: rtype
= R_IA64_REL32MSB
; break;
558 case BFD_RELOC_IA64_REL32LSB
: rtype
= R_IA64_REL32LSB
; break;
559 case BFD_RELOC_IA64_REL64MSB
: rtype
= R_IA64_REL64MSB
; break;
560 case BFD_RELOC_IA64_REL64LSB
: rtype
= R_IA64_REL64LSB
; break;
562 case BFD_RELOC_IA64_LTV32MSB
: rtype
= R_IA64_LTV32MSB
; break;
563 case BFD_RELOC_IA64_LTV32LSB
: rtype
= R_IA64_LTV32LSB
; break;
564 case BFD_RELOC_IA64_LTV64MSB
: rtype
= R_IA64_LTV64MSB
; break;
565 case BFD_RELOC_IA64_LTV64LSB
: rtype
= R_IA64_LTV64LSB
; break;
567 case BFD_RELOC_IA64_IPLTMSB
: rtype
= R_IA64_IPLTMSB
; break;
568 case BFD_RELOC_IA64_IPLTLSB
: rtype
= R_IA64_IPLTLSB
; break;
569 case BFD_RELOC_IA64_COPY
: rtype
= R_IA64_COPY
; break;
570 case BFD_RELOC_IA64_LTOFF22X
: rtype
= R_IA64_LTOFF22X
; break;
571 case BFD_RELOC_IA64_LDXMOV
: rtype
= R_IA64_LDXMOV
; break;
573 case BFD_RELOC_IA64_TPREL14
: rtype
= R_IA64_TPREL14
; break;
574 case BFD_RELOC_IA64_TPREL22
: rtype
= R_IA64_TPREL22
; break;
575 case BFD_RELOC_IA64_TPREL64I
: rtype
= R_IA64_TPREL64I
; break;
576 case BFD_RELOC_IA64_TPREL64MSB
: rtype
= R_IA64_TPREL64MSB
; break;
577 case BFD_RELOC_IA64_TPREL64LSB
: rtype
= R_IA64_TPREL64LSB
; break;
578 case BFD_RELOC_IA64_LTOFF_TPREL22
: rtype
= R_IA64_LTOFF_TPREL22
; break;
580 case BFD_RELOC_IA64_DTPMOD64MSB
: rtype
= R_IA64_DTPMOD64MSB
; break;
581 case BFD_RELOC_IA64_DTPMOD64LSB
: rtype
= R_IA64_DTPMOD64LSB
; break;
582 case BFD_RELOC_IA64_LTOFF_DTPMOD22
: rtype
= R_IA64_LTOFF_DTPMOD22
; break;
584 case BFD_RELOC_IA64_DTPREL14
: rtype
= R_IA64_DTPREL14
; break;
585 case BFD_RELOC_IA64_DTPREL22
: rtype
= R_IA64_DTPREL22
; break;
586 case BFD_RELOC_IA64_DTPREL64I
: rtype
= R_IA64_DTPREL64I
; break;
587 case BFD_RELOC_IA64_DTPREL32MSB
: rtype
= R_IA64_DTPREL32MSB
; break;
588 case BFD_RELOC_IA64_DTPREL32LSB
: rtype
= R_IA64_DTPREL32LSB
; break;
589 case BFD_RELOC_IA64_DTPREL64MSB
: rtype
= R_IA64_DTPREL64MSB
; break;
590 case BFD_RELOC_IA64_DTPREL64LSB
: rtype
= R_IA64_DTPREL64LSB
; break;
591 case BFD_RELOC_IA64_LTOFF_DTPREL22
: rtype
= R_IA64_LTOFF_DTPREL22
; break;
595 return lookup_howto (rtype
);
598 /* Given a ELF reloc, return the matching HOWTO structure. */
601 elfNN_ia64_info_to_howto (abfd
, bfd_reloc
, elf_reloc
)
602 bfd
*abfd ATTRIBUTE_UNUSED
;
604 Elf_Internal_Rela
*elf_reloc
;
607 = lookup_howto ((unsigned int) ELFNN_R_TYPE (elf_reloc
->r_info
));
610 #define PLT_HEADER_SIZE (3 * 16)
611 #define PLT_MIN_ENTRY_SIZE (1 * 16)
612 #define PLT_FULL_ENTRY_SIZE (2 * 16)
613 #define PLT_RESERVED_WORDS 3
615 static const bfd_byte plt_header
[PLT_HEADER_SIZE
] =
617 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
618 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
619 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
620 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
621 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
622 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
623 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
624 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
625 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
628 static const bfd_byte plt_min_entry
[PLT_MIN_ENTRY_SIZE
] =
630 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
631 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
632 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
635 static const bfd_byte plt_full_entry
[PLT_FULL_ENTRY_SIZE
] =
637 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
638 0x00, 0x41, 0x3c, 0x30, 0x28, 0xc0, /* ld8 r16=[r15],8 */
639 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
640 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
641 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
642 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
645 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
647 static const bfd_byte oor_brl
[16] =
649 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
650 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
651 0x00, 0x00, 0x00, 0xc0
654 static const bfd_byte oor_ip
[48] =
656 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
657 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
658 0x01, 0x00, 0x00, 0x60,
659 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
660 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
661 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
662 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
663 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
664 0x60, 0x00, 0x80, 0x00 /* br b6;; */
667 static size_t oor_branch_size
= sizeof (oor_brl
);
670 bfd_elfNN_ia64_after_parse (int itanium
)
672 oor_branch_size
= itanium
? sizeof (oor_ip
) : sizeof (oor_brl
);
676 /* These functions do relaxation for IA-64 ELF. */
679 elfNN_ia64_relax_section (abfd
, sec
, link_info
, again
)
682 struct bfd_link_info
*link_info
;
687 struct one_fixup
*next
;
693 Elf_Internal_Shdr
*symtab_hdr
;
694 Elf_Internal_Rela
*internal_relocs
;
695 Elf_Internal_Rela
*irel
, *irelend
;
697 Elf_Internal_Sym
*isymbuf
= NULL
;
698 struct elfNN_ia64_link_hash_table
*ia64_info
;
699 struct one_fixup
*fixups
= NULL
;
700 bfd_boolean changed_contents
= FALSE
;
701 bfd_boolean changed_relocs
= FALSE
;
702 bfd_boolean changed_got
= FALSE
;
705 /* Assume we're not going to change any sizes, and we'll only need
709 /* Don't even try to relax for non-ELF outputs. */
710 if (link_info
->hash
->creator
->flavour
!= bfd_target_elf_flavour
)
713 /* Nothing to do if there are no relocations or there is no need for
714 the relax finalize pass. */
715 if ((sec
->flags
& SEC_RELOC
) == 0
716 || sec
->reloc_count
== 0
717 || (link_info
->relax_finalizing
718 && sec
->need_finalize_relax
== 0))
721 /* If this is the first time we have been called for this section,
722 initialize the cooked size. */
723 if (sec
->_cooked_size
== 0)
724 sec
->_cooked_size
= sec
->_raw_size
;
726 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
728 /* Load the relocations for this section. */
729 internal_relocs
= (_bfd_elf_link_read_relocs
730 (abfd
, sec
, (PTR
) NULL
, (Elf_Internal_Rela
*) NULL
,
731 link_info
->keep_memory
));
732 if (internal_relocs
== NULL
)
735 ia64_info
= elfNN_ia64_hash_table (link_info
);
736 irelend
= internal_relocs
+ sec
->reloc_count
;
738 /* Get the section contents. */
739 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
740 contents
= elf_section_data (sec
)->this_hdr
.contents
;
743 contents
= (bfd_byte
*) bfd_malloc (sec
->_raw_size
);
744 if (contents
== NULL
)
747 if (! bfd_get_section_contents (abfd
, sec
, contents
,
748 (file_ptr
) 0, sec
->_raw_size
))
752 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
754 unsigned long r_type
= ELFNN_R_TYPE (irel
->r_info
);
755 bfd_vma symaddr
, reladdr
, trampoff
, toff
, roff
;
759 bfd_boolean is_branch
;
760 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
764 case R_IA64_PCREL21B
:
765 case R_IA64_PCREL21BI
:
766 case R_IA64_PCREL21M
:
767 case R_IA64_PCREL21F
:
768 if (link_info
->relax_finalizing
)
773 case R_IA64_LTOFF22X
:
775 if (!link_info
->relax_finalizing
)
777 sec
->need_finalize_relax
= 1;
787 /* Get the value of the symbol referred to by the reloc. */
788 if (ELFNN_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
790 /* A local symbol. */
791 Elf_Internal_Sym
*isym
;
793 /* Read this BFD's local symbols. */
796 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
798 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
799 symtab_hdr
->sh_info
, 0,
805 isym
= isymbuf
+ ELFNN_R_SYM (irel
->r_info
);
806 if (isym
->st_shndx
== SHN_UNDEF
)
807 continue; /* We can't do anthing with undefined symbols. */
808 else if (isym
->st_shndx
== SHN_ABS
)
809 tsec
= bfd_abs_section_ptr
;
810 else if (isym
->st_shndx
== SHN_COMMON
)
811 tsec
= bfd_com_section_ptr
;
812 else if (isym
->st_shndx
== SHN_IA_64_ANSI_COMMON
)
813 tsec
= bfd_com_section_ptr
;
815 tsec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
817 toff
= isym
->st_value
;
818 dyn_i
= get_dyn_sym_info (ia64_info
, NULL
, abfd
, irel
, FALSE
);
823 struct elf_link_hash_entry
*h
;
825 indx
= ELFNN_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
826 h
= elf_sym_hashes (abfd
)[indx
];
827 BFD_ASSERT (h
!= NULL
);
829 while (h
->root
.type
== bfd_link_hash_indirect
830 || h
->root
.type
== bfd_link_hash_warning
)
831 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
833 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, irel
, FALSE
);
835 /* For branches to dynamic symbols, we're interested instead
836 in a branch to the PLT entry. */
837 if (is_branch
&& dyn_i
&& dyn_i
->want_plt2
)
839 /* Internal branches shouldn't be sent to the PLT.
840 Leave this for now and we'll give an error later. */
841 if (r_type
!= R_IA64_PCREL21B
)
844 tsec
= ia64_info
->plt_sec
;
845 toff
= dyn_i
->plt2_offset
;
846 BFD_ASSERT (irel
->r_addend
== 0);
849 /* Can't do anything else with dynamic symbols. */
850 else if (elfNN_ia64_dynamic_symbol_p (h
, link_info
, r_type
))
855 /* We can't do anthing with undefined symbols. */
856 if (h
->root
.type
== bfd_link_hash_undefined
857 || h
->root
.type
== bfd_link_hash_undefweak
)
860 tsec
= h
->root
.u
.def
.section
;
861 toff
= h
->root
.u
.def
.value
;
865 if (tsec
->sec_info_type
== ELF_INFO_TYPE_MERGE
)
866 toff
= _bfd_merged_section_offset (abfd
, &tsec
,
867 elf_section_data (tsec
)->sec_info
,
868 toff
+ irel
->r_addend
,
871 toff
+= irel
->r_addend
;
873 symaddr
= tsec
->output_section
->vma
+ tsec
->output_offset
+ toff
;
875 roff
= irel
->r_offset
;
879 reladdr
= (sec
->output_section
->vma
881 + roff
) & (bfd_vma
) -4;
883 /* If the branch is in range, no need to do anything. */
884 if ((bfd_signed_vma
) (symaddr
- reladdr
) >= -0x1000000
885 && (bfd_signed_vma
) (symaddr
- reladdr
) <= 0x0FFFFF0)
888 /* If the branch and target are in the same section, you've
889 got one honking big section and we can't help you. You'll
890 get an error message later. */
894 /* Look for an existing fixup to this address. */
895 for (f
= fixups
; f
; f
= f
->next
)
896 if (f
->tsec
== tsec
&& f
->toff
== toff
)
901 /* Two alternatives: If it's a branch to a PLT entry, we can
902 make a copy of the FULL_PLT entry. Otherwise, we'll have
903 to use a `brl' insn to get where we're going. */
907 if (tsec
== ia64_info
->plt_sec
)
908 size
= sizeof (plt_full_entry
);
910 size
= oor_branch_size
;
912 /* Resize the current section to make room for the new branch. */
913 trampoff
= (sec
->_cooked_size
+ 15) & (bfd_vma
) -16;
914 amt
= trampoff
+ size
;
915 contents
= (bfd_byte
*) bfd_realloc (contents
, amt
);
916 if (contents
== NULL
)
918 sec
->_cooked_size
= amt
;
920 if (tsec
== ia64_info
->plt_sec
)
922 memcpy (contents
+ trampoff
, plt_full_entry
, size
);
924 /* Hijack the old relocation for use as the PLTOFF reloc. */
925 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
927 irel
->r_offset
= trampoff
;
931 if (size
== sizeof (oor_ip
))
933 memcpy (contents
+ trampoff
, oor_ip
, size
);
934 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
936 irel
->r_addend
-= 16;
937 irel
->r_offset
= trampoff
+ 2;
941 memcpy (contents
+ trampoff
, oor_brl
, size
);
942 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
944 irel
->r_offset
= trampoff
+ 2;
949 /* Record the fixup so we don't do it again this section. */
950 f
= (struct one_fixup
*)
951 bfd_malloc ((bfd_size_type
) sizeof (*f
));
955 f
->trampoff
= trampoff
;
960 /* Nop out the reloc, since we're finalizing things here. */
961 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
964 /* Fix up the existing branch to hit the trampoline. Hope like
965 hell this doesn't overflow too. */
966 if (elfNN_ia64_install_value (abfd
, contents
+ roff
,
967 f
->trampoff
- (roff
& (bfd_vma
) -4),
968 r_type
) != bfd_reloc_ok
)
971 changed_contents
= TRUE
;
972 changed_relocs
= TRUE
;
979 bfd
*obfd
= sec
->output_section
->owner
;
980 gp
= _bfd_get_gp_value (obfd
);
983 if (!elfNN_ia64_choose_gp (obfd
, link_info
))
985 gp
= _bfd_get_gp_value (obfd
);
989 /* If the data is out of range, do nothing. */
990 if ((bfd_signed_vma
) (symaddr
- gp
) >= 0x200000
991 ||(bfd_signed_vma
) (symaddr
- gp
) < -0x200000)
994 if (r_type
== R_IA64_LTOFF22X
)
996 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
998 changed_relocs
= TRUE
;
999 if (dyn_i
->want_gotx
)
1001 dyn_i
->want_gotx
= 0;
1002 changed_got
|= !dyn_i
->want_got
;
1007 elfNN_ia64_relax_ldxmov (abfd
, contents
, roff
);
1008 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
1009 changed_contents
= TRUE
;
1010 changed_relocs
= TRUE
;
1015 /* ??? If we created fixups, this may push the code segment large
1016 enough that the data segment moves, which will change the GP.
1017 Reset the GP so that we re-calculate next round. We need to
1018 do this at the _beginning_ of the next round; now will not do. */
1020 /* Clean up and go home. */
1023 struct one_fixup
*f
= fixups
;
1024 fixups
= fixups
->next
;
1029 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
1031 if (! link_info
->keep_memory
)
1035 /* Cache the symbols for elf_link_input_bfd. */
1036 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
1040 if (contents
!= NULL
1041 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
1043 if (!changed_contents
&& !link_info
->keep_memory
)
1047 /* Cache the section contents for elf_link_input_bfd. */
1048 elf_section_data (sec
)->this_hdr
.contents
= contents
;
1052 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
1054 if (!changed_relocs
)
1055 free (internal_relocs
);
1057 elf_section_data (sec
)->relocs
= internal_relocs
;
1062 struct elfNN_ia64_allocate_data data
;
1063 data
.info
= link_info
;
1065 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
1067 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
1068 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
1069 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
1070 ia64_info
->got_sec
->_raw_size
= data
.ofs
;
1071 ia64_info
->got_sec
->_cooked_size
= data
.ofs
;
1073 /* ??? Resize .rela.got too. */
1076 if (link_info
->relax_finalizing
)
1077 sec
->need_finalize_relax
= 0;
1079 *again
= changed_contents
|| changed_relocs
;
1083 if (isymbuf
!= NULL
&& (unsigned char *) isymbuf
!= symtab_hdr
->contents
)
1085 if (contents
!= NULL
1086 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
1088 if (internal_relocs
!= NULL
1089 && elf_section_data (sec
)->relocs
!= internal_relocs
)
1090 free (internal_relocs
);
1095 elfNN_ia64_relax_ldxmov (abfd
, contents
, off
)
1101 bfd_vma dword
, insn
;
1103 switch ((int)off
& 0x3)
1105 case 0: shift
= 5; break;
1106 case 1: shift
= 14; off
+= 3; break;
1107 case 2: shift
= 23; off
+= 6; break;
1112 dword
= bfd_get_64 (abfd
, contents
+ off
);
1113 insn
= (dword
>> shift
) & 0x1ffffffffffLL
;
1115 r1
= (insn
>> 6) & 127;
1116 r3
= (insn
>> 20) & 127;
1118 insn
= 0x8000000; /* nop */
1120 insn
= (insn
& 0x7f01fff) | 0x10800000000LL
; /* (qp) mov r1 = r3 */
1122 dword
&= ~(0x1ffffffffffLL
<< shift
);
1123 dword
|= (insn
<< shift
);
1124 bfd_put_64 (abfd
, dword
, contents
+ off
);
1127 /* Return TRUE if NAME is an unwind table section name. */
1129 static inline bfd_boolean
1130 is_unwind_section_name (abfd
, name
)
1134 size_t len1
, len2
, len3
;
1136 if (elfNN_ia64_hpux_vec (abfd
->xvec
)
1137 && !strcmp (name
, ELF_STRING_ia64_unwind_hdr
))
1140 len1
= sizeof (ELF_STRING_ia64_unwind
) - 1;
1141 len2
= sizeof (ELF_STRING_ia64_unwind_info
) - 1;
1142 len3
= sizeof (ELF_STRING_ia64_unwind_once
) - 1;
1143 return ((strncmp (name
, ELF_STRING_ia64_unwind
, len1
) == 0
1144 && strncmp (name
, ELF_STRING_ia64_unwind_info
, len2
) != 0)
1145 || strncmp (name
, ELF_STRING_ia64_unwind_once
, len3
) == 0);
1148 /* Handle an IA-64 specific section when reading an object file. This
1149 is called when elfcode.h finds a section with an unknown type. */
1152 elfNN_ia64_section_from_shdr (abfd
, hdr
, name
)
1154 Elf_Internal_Shdr
*hdr
;
1159 /* There ought to be a place to keep ELF backend specific flags, but
1160 at the moment there isn't one. We just keep track of the
1161 sections by their name, instead. Fortunately, the ABI gives
1162 suggested names for all the MIPS specific sections, so we will
1163 probably get away with this. */
1164 switch (hdr
->sh_type
)
1166 case SHT_IA_64_UNWIND
:
1167 case SHT_IA_64_HP_OPT_ANOT
:
1171 if (strcmp (name
, ELF_STRING_ia64_archext
) != 0)
1179 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
))
1181 newsect
= hdr
->bfd_section
;
1186 /* Convert IA-64 specific section flags to bfd internal section flags. */
1188 /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
1192 elfNN_ia64_section_flags (flags
, hdr
)
1194 Elf_Internal_Shdr
*hdr
;
1196 if (hdr
->sh_flags
& SHF_IA_64_SHORT
)
1197 *flags
|= SEC_SMALL_DATA
;
1202 /* Set the correct type for an IA-64 ELF section. We do this by the
1203 section name, which is a hack, but ought to work. */
1206 elfNN_ia64_fake_sections (abfd
, hdr
, sec
)
1207 bfd
*abfd ATTRIBUTE_UNUSED
;
1208 Elf_Internal_Shdr
*hdr
;
1211 register const char *name
;
1213 name
= bfd_get_section_name (abfd
, sec
);
1215 if (is_unwind_section_name (abfd
, name
))
1217 /* We don't have the sections numbered at this point, so sh_info
1218 is set later, in elfNN_ia64_final_write_processing. */
1219 hdr
->sh_type
= SHT_IA_64_UNWIND
;
1220 hdr
->sh_flags
|= SHF_LINK_ORDER
;
1222 else if (strcmp (name
, ELF_STRING_ia64_archext
) == 0)
1223 hdr
->sh_type
= SHT_IA_64_EXT
;
1224 else if (strcmp (name
, ".HP.opt_annot") == 0)
1225 hdr
->sh_type
= SHT_IA_64_HP_OPT_ANOT
;
1226 else if (strcmp (name
, ".reloc") == 0)
1227 /* This is an ugly, but unfortunately necessary hack that is
1228 needed when producing EFI binaries on IA-64. It tells
1229 elf.c:elf_fake_sections() not to consider ".reloc" as a section
1230 containing ELF relocation info. We need this hack in order to
1231 be able to generate ELF binaries that can be translated into
1232 EFI applications (which are essentially COFF objects). Those
1233 files contain a COFF ".reloc" section inside an ELFNN object,
1234 which would normally cause BFD to segfault because it would
1235 attempt to interpret this section as containing relocation
1236 entries for section "oc". With this hack enabled, ".reloc"
1237 will be treated as a normal data section, which will avoid the
1238 segfault. However, you won't be able to create an ELFNN binary
1239 with a section named "oc" that needs relocations, but that's
1240 the kind of ugly side-effects you get when detecting section
1241 types based on their names... In practice, this limitation is
1242 unlikely to bite. */
1243 hdr
->sh_type
= SHT_PROGBITS
;
1245 if (sec
->flags
& SEC_SMALL_DATA
)
1246 hdr
->sh_flags
|= SHF_IA_64_SHORT
;
1251 /* The final processing done just before writing out an IA-64 ELF
1255 elfNN_ia64_final_write_processing (abfd
, linker
)
1257 bfd_boolean linker ATTRIBUTE_UNUSED
;
1259 Elf_Internal_Shdr
*hdr
;
1261 asection
*text_sect
, *s
;
1264 for (s
= abfd
->sections
; s
; s
= s
->next
)
1266 hdr
= &elf_section_data (s
)->this_hdr
;
1267 switch (hdr
->sh_type
)
1269 case SHT_IA_64_UNWIND
:
1270 /* See comments in gas/config/tc-ia64.c:dot_endp on why we
1272 sname
= bfd_get_section_name (abfd
, s
);
1273 len
= sizeof (ELF_STRING_ia64_unwind
) - 1;
1274 if (sname
&& strncmp (sname
, ELF_STRING_ia64_unwind
, len
) == 0)
1278 if (sname
[0] == '\0')
1279 /* .IA_64.unwind -> .text */
1280 text_sect
= bfd_get_section_by_name (abfd
, ".text");
1282 /* .IA_64.unwindFOO -> FOO */
1283 text_sect
= bfd_get_section_by_name (abfd
, sname
);
1286 && (len
= sizeof (ELF_STRING_ia64_unwind_once
) - 1,
1287 strncmp (sname
, ELF_STRING_ia64_unwind_once
, len
)) == 0)
1289 /* .gnu.linkonce.ia64unw.FOO -> .gnu.linkonce.t.FOO */
1290 size_t len2
= sizeof (".gnu.linkonce.t.") - 1;
1291 char *once_name
= bfd_malloc (len2
+ strlen (sname
+ len
) + 1);
1293 if (once_name
!= NULL
)
1295 memcpy (once_name
, ".gnu.linkonce.t.", len2
);
1296 strcpy (once_name
+ len2
, sname
+ len
);
1297 text_sect
= bfd_get_section_by_name (abfd
, once_name
);
1301 /* Should only happen if we run out of memory, in
1302 which case we're probably toast anyway. Try to
1303 cope by finding the section the slow way. */
1304 for (text_sect
= abfd
->sections
;
1306 text_sect
= text_sect
->next
)
1308 if (strncmp (bfd_section_name (abfd
, text_sect
),
1309 ".gnu.linkonce.t.", len2
) == 0
1310 && strcmp (bfd_section_name (abfd
, text_sect
) + len2
,
1316 /* last resort: fall back on .text */
1317 text_sect
= bfd_get_section_by_name (abfd
, ".text");
1321 /* The IA-64 processor-specific ABI requires setting
1322 sh_link to the unwind section, whereas HP-UX requires
1323 sh_info to do so. For maximum compatibility, we'll
1324 set both for now... */
1325 hdr
->sh_link
= elf_section_data (text_sect
)->this_idx
;
1326 hdr
->sh_info
= elf_section_data (text_sect
)->this_idx
;
1332 if (! elf_flags_init (abfd
))
1334 unsigned long flags
= 0;
1336 if (abfd
->xvec
->byteorder
== BFD_ENDIAN_BIG
)
1337 flags
|= EF_IA_64_BE
;
1338 if (bfd_get_mach (abfd
) == bfd_mach_ia64_elf64
)
1339 flags
|= EF_IA_64_ABI64
;
1341 elf_elfheader(abfd
)->e_flags
= flags
;
1342 elf_flags_init (abfd
) = TRUE
;
1346 /* Hook called by the linker routine which adds symbols from an object
1347 file. We use it to put .comm items in .sbss, and not .bss. */
1350 elfNN_ia64_add_symbol_hook (abfd
, info
, sym
, namep
, flagsp
, secp
, valp
)
1352 struct bfd_link_info
*info
;
1353 const Elf_Internal_Sym
*sym
;
1354 const char **namep ATTRIBUTE_UNUSED
;
1355 flagword
*flagsp ATTRIBUTE_UNUSED
;
1359 if (sym
->st_shndx
== SHN_COMMON
1360 && !info
->relocatable
1361 && sym
->st_size
<= elf_gp_size (abfd
))
1363 /* Common symbols less than or equal to -G nn bytes are
1364 automatically put into .sbss. */
1366 asection
*scomm
= bfd_get_section_by_name (abfd
, ".scommon");
1370 scomm
= bfd_make_section (abfd
, ".scommon");
1372 || !bfd_set_section_flags (abfd
, scomm
, (SEC_ALLOC
1374 | SEC_LINKER_CREATED
)))
1379 *valp
= sym
->st_size
;
1385 /* Return the number of additional phdrs we will need. */
1388 elfNN_ia64_additional_program_headers (abfd
)
1394 /* See if we need a PT_IA_64_ARCHEXT segment. */
1395 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1396 if (s
&& (s
->flags
& SEC_LOAD
))
1399 /* Count how many PT_IA_64_UNWIND segments we need. */
1400 for (s
= abfd
->sections
; s
; s
= s
->next
)
1401 if (is_unwind_section_name (abfd
, s
->name
) && (s
->flags
& SEC_LOAD
))
1408 elfNN_ia64_modify_segment_map (abfd
)
1411 struct elf_segment_map
*m
, **pm
;
1412 Elf_Internal_Shdr
*hdr
;
1415 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1416 all PT_LOAD segments. */
1417 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1418 if (s
&& (s
->flags
& SEC_LOAD
))
1420 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1421 if (m
->p_type
== PT_IA_64_ARCHEXT
)
1425 m
= ((struct elf_segment_map
*)
1426 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1430 m
->p_type
= PT_IA_64_ARCHEXT
;
1434 /* We want to put it after the PHDR and INTERP segments. */
1435 pm
= &elf_tdata (abfd
)->segment_map
;
1437 && ((*pm
)->p_type
== PT_PHDR
1438 || (*pm
)->p_type
== PT_INTERP
))
1446 /* Install PT_IA_64_UNWIND segments, if needed. */
1447 for (s
= abfd
->sections
; s
; s
= s
->next
)
1449 hdr
= &elf_section_data (s
)->this_hdr
;
1450 if (hdr
->sh_type
!= SHT_IA_64_UNWIND
)
1453 if (s
&& (s
->flags
& SEC_LOAD
))
1455 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1456 if (m
->p_type
== PT_IA_64_UNWIND
)
1460 /* Look through all sections in the unwind segment
1461 for a match since there may be multiple sections
1463 for (i
= m
->count
- 1; i
>= 0; --i
)
1464 if (m
->sections
[i
] == s
)
1473 m
= ((struct elf_segment_map
*)
1474 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1478 m
->p_type
= PT_IA_64_UNWIND
;
1483 /* We want to put it last. */
1484 pm
= &elf_tdata (abfd
)->segment_map
;
1492 /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1493 the input sections for each output section in the segment and testing
1494 for SHF_IA_64_NORECOV on each. */
1495 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1496 if (m
->p_type
== PT_LOAD
)
1499 for (i
= m
->count
- 1; i
>= 0; --i
)
1501 struct bfd_link_order
*order
= m
->sections
[i
]->link_order_head
;
1504 if (order
->type
== bfd_indirect_link_order
)
1506 asection
*is
= order
->u
.indirect
.section
;
1507 bfd_vma flags
= elf_section_data(is
)->this_hdr
.sh_flags
;
1508 if (flags
& SHF_IA_64_NORECOV
)
1510 m
->p_flags
|= PF_IA_64_NORECOV
;
1514 order
= order
->next
;
1523 /* According to the Tahoe assembler spec, all labels starting with a
1527 elfNN_ia64_is_local_label_name (abfd
, name
)
1528 bfd
*abfd ATTRIBUTE_UNUSED
;
1531 return name
[0] == '.';
1534 /* Should we do dynamic things to this symbol? */
1537 elfNN_ia64_dynamic_symbol_p (h
, info
, r_type
)
1538 struct elf_link_hash_entry
*h
;
1539 struct bfd_link_info
*info
;
1542 bfd_boolean ignore_protected
1543 = ((r_type
& 0xf8) == 0x40 /* FPTR relocs */
1544 || (r_type
& 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1546 return _bfd_elf_dynamic_symbol_p (h
, info
, ignore_protected
);
1549 static struct bfd_hash_entry
*
1550 elfNN_ia64_new_elf_hash_entry (entry
, table
, string
)
1551 struct bfd_hash_entry
*entry
;
1552 struct bfd_hash_table
*table
;
1555 struct elfNN_ia64_link_hash_entry
*ret
;
1556 ret
= (struct elfNN_ia64_link_hash_entry
*) entry
;
1558 /* Allocate the structure if it has not already been allocated by a
1561 ret
= bfd_hash_allocate (table
, sizeof (*ret
));
1566 /* Initialize our local data. All zeros, and definitely easier
1567 than setting a handful of bit fields. */
1568 memset (ret
, 0, sizeof (*ret
));
1570 /* Call the allocation method of the superclass. */
1571 ret
= ((struct elfNN_ia64_link_hash_entry
*)
1572 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
1575 return (struct bfd_hash_entry
*) ret
;
1579 elfNN_ia64_hash_copy_indirect (bed
, xdir
, xind
)
1580 const struct elf_backend_data
*bed ATTRIBUTE_UNUSED
;
1581 struct elf_link_hash_entry
*xdir
, *xind
;
1583 struct elfNN_ia64_link_hash_entry
*dir
, *ind
;
1585 dir
= (struct elfNN_ia64_link_hash_entry
*) xdir
;
1586 ind
= (struct elfNN_ia64_link_hash_entry
*) xind
;
1588 /* Copy down any references that we may have already seen to the
1589 symbol which just became indirect. */
1591 dir
->root
.elf_link_hash_flags
|=
1592 (ind
->root
.elf_link_hash_flags
1593 & (ELF_LINK_HASH_REF_DYNAMIC
1594 | ELF_LINK_HASH_REF_REGULAR
1595 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
));
1597 if (ind
->root
.root
.type
!= bfd_link_hash_indirect
)
1600 /* Copy over the got and plt data. This would have been done
1603 if (dir
->info
== NULL
)
1605 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1607 dir
->info
= dyn_i
= ind
->info
;
1610 /* Fix up the dyn_sym_info pointers to the global symbol. */
1611 for (; dyn_i
; dyn_i
= dyn_i
->next
)
1612 dyn_i
->h
= &dir
->root
;
1614 BFD_ASSERT (ind
->info
== NULL
);
1616 /* Copy over the dynindx. */
1618 if (dir
->root
.dynindx
== -1)
1620 dir
->root
.dynindx
= ind
->root
.dynindx
;
1621 dir
->root
.dynstr_index
= ind
->root
.dynstr_index
;
1622 ind
->root
.dynindx
= -1;
1623 ind
->root
.dynstr_index
= 0;
1625 BFD_ASSERT (ind
->root
.dynindx
== -1);
1629 elfNN_ia64_hash_hide_symbol (info
, xh
, force_local
)
1630 struct bfd_link_info
*info
;
1631 struct elf_link_hash_entry
*xh
;
1632 bfd_boolean force_local
;
1634 struct elfNN_ia64_link_hash_entry
*h
;
1635 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1637 h
= (struct elfNN_ia64_link_hash_entry
*)xh
;
1639 _bfd_elf_link_hash_hide_symbol (info
, &h
->root
, force_local
);
1641 for (dyn_i
= h
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1643 dyn_i
->want_plt2
= 0;
1644 dyn_i
->want_plt
= 0;
1648 /* Compute a hash of a local hash entry. */
1651 elfNN_ia64_local_htab_hash (ptr
)
1654 struct elfNN_ia64_local_hash_entry
*entry
1655 = (struct elfNN_ia64_local_hash_entry
*) ptr
;
1657 return (((entry
->id
& 0xff) << 24) | ((entry
->id
& 0xff00) << 8))
1658 ^ entry
->r_sym
^ (entry
->id
>> 16);
1661 /* Compare local hash entries. */
1664 elfNN_ia64_local_htab_eq (ptr1
, ptr2
)
1665 const void *ptr1
, *ptr2
;
1667 struct elfNN_ia64_local_hash_entry
*entry1
1668 = (struct elfNN_ia64_local_hash_entry
*) ptr1
;
1669 struct elfNN_ia64_local_hash_entry
*entry2
1670 = (struct elfNN_ia64_local_hash_entry
*) ptr2
;
1672 return entry1
->id
== entry2
->id
&& entry1
->r_sym
== entry2
->r_sym
;
1675 /* Create the derived linker hash table. The IA-64 ELF port uses this
1676 derived hash table to keep information specific to the IA-64 ElF
1677 linker (without using static variables). */
1679 static struct bfd_link_hash_table
*
1680 elfNN_ia64_hash_table_create (abfd
)
1683 struct elfNN_ia64_link_hash_table
*ret
;
1685 ret
= bfd_zmalloc ((bfd_size_type
) sizeof (*ret
));
1689 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
1690 elfNN_ia64_new_elf_hash_entry
))
1696 ret
->loc_hash_table
= htab_try_create (1024, elfNN_ia64_local_htab_hash
,
1697 elfNN_ia64_local_htab_eq
, NULL
);
1698 ret
->loc_hash_memory
= objalloc_create ();
1699 if (!ret
->loc_hash_table
|| !ret
->loc_hash_memory
)
1705 return &ret
->root
.root
;
1708 /* Destroy IA-64 linker hash table. */
1711 elfNN_ia64_hash_table_free (hash
)
1712 struct bfd_link_hash_table
*hash
;
1714 struct elfNN_ia64_link_hash_table
*ia64_info
1715 = (struct elfNN_ia64_link_hash_table
*) hash
;
1716 if (ia64_info
->loc_hash_table
)
1717 htab_delete (ia64_info
->loc_hash_table
);
1718 if (ia64_info
->loc_hash_memory
)
1719 objalloc_free ((struct objalloc
*) ia64_info
->loc_hash_memory
);
1720 _bfd_generic_link_hash_table_free (hash
);
1723 /* Traverse both local and global hash tables. */
1725 struct elfNN_ia64_dyn_sym_traverse_data
1727 bfd_boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1732 elfNN_ia64_global_dyn_sym_thunk (xentry
, xdata
)
1733 struct bfd_hash_entry
*xentry
;
1736 struct elfNN_ia64_link_hash_entry
*entry
1737 = (struct elfNN_ia64_link_hash_entry
*) xentry
;
1738 struct elfNN_ia64_dyn_sym_traverse_data
*data
1739 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1740 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1742 if (entry
->root
.root
.type
== bfd_link_hash_warning
)
1743 entry
= (struct elfNN_ia64_link_hash_entry
*) entry
->root
.root
.u
.i
.link
;
1745 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1746 if (! (*data
->func
) (dyn_i
, data
->data
))
1752 elfNN_ia64_local_dyn_sym_thunk (slot
, xdata
)
1756 struct elfNN_ia64_local_hash_entry
*entry
1757 = (struct elfNN_ia64_local_hash_entry
*) *slot
;
1758 struct elfNN_ia64_dyn_sym_traverse_data
*data
1759 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1760 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1762 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1763 if (! (*data
->func
) (dyn_i
, data
->data
))
1769 elfNN_ia64_dyn_sym_traverse (ia64_info
, func
, data
)
1770 struct elfNN_ia64_link_hash_table
*ia64_info
;
1771 bfd_boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1774 struct elfNN_ia64_dyn_sym_traverse_data xdata
;
1779 elf_link_hash_traverse (&ia64_info
->root
,
1780 elfNN_ia64_global_dyn_sym_thunk
, &xdata
);
1781 htab_traverse (ia64_info
->loc_hash_table
,
1782 elfNN_ia64_local_dyn_sym_thunk
, &xdata
);
1786 elfNN_ia64_create_dynamic_sections (abfd
, info
)
1788 struct bfd_link_info
*info
;
1790 struct elfNN_ia64_link_hash_table
*ia64_info
;
1793 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
1796 ia64_info
= elfNN_ia64_hash_table (info
);
1798 ia64_info
->plt_sec
= bfd_get_section_by_name (abfd
, ".plt");
1799 ia64_info
->got_sec
= bfd_get_section_by_name (abfd
, ".got");
1802 flagword flags
= bfd_get_section_flags (abfd
, ia64_info
->got_sec
);
1803 bfd_set_section_flags (abfd
, ia64_info
->got_sec
, SEC_SMALL_DATA
| flags
);
1804 /* The .got section is always aligned at 8 bytes. */
1805 bfd_set_section_alignment (abfd
, ia64_info
->got_sec
, 3);
1808 if (!get_pltoff (abfd
, info
, ia64_info
))
1811 s
= bfd_make_section(abfd
, ".rela.IA_64.pltoff");
1813 || !bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1816 | SEC_LINKER_CREATED
1818 || !bfd_set_section_alignment (abfd
, s
, 3))
1820 ia64_info
->rel_pltoff_sec
= s
;
1822 s
= bfd_make_section(abfd
, ".rela.got");
1824 || !bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1827 | SEC_LINKER_CREATED
1829 || !bfd_set_section_alignment (abfd
, s
, 3))
1831 ia64_info
->rel_got_sec
= s
;
1836 /* Find and/or create a hash entry for local symbol. */
1837 static struct elfNN_ia64_local_hash_entry
*
1838 get_local_sym_hash (ia64_info
, abfd
, rel
, create
)
1839 struct elfNN_ia64_link_hash_table
*ia64_info
;
1841 const Elf_Internal_Rela
*rel
;
1844 struct elfNN_ia64_local_hash_entry e
, *ret
;
1845 asection
*sec
= abfd
->sections
;
1846 hashval_t h
= (((sec
->id
& 0xff) << 24) | ((sec
->id
& 0xff00) << 8))
1847 ^ ELFNN_R_SYM (rel
->r_info
) ^ (sec
->id
>> 16);
1851 e
.r_sym
= ELFNN_R_SYM (rel
->r_info
);
1852 slot
= htab_find_slot_with_hash (ia64_info
->loc_hash_table
, &e
, h
,
1853 create
? INSERT
: NO_INSERT
);
1859 return (struct elfNN_ia64_local_hash_entry
*) *slot
;
1861 ret
= (struct elfNN_ia64_local_hash_entry
*)
1862 objalloc_alloc ((struct objalloc
*) ia64_info
->loc_hash_memory
,
1863 sizeof (struct elfNN_ia64_local_hash_entry
));
1866 memset (ret
, 0, sizeof (*ret
));
1868 ret
->r_sym
= ELFNN_R_SYM (rel
->r_info
);
1874 /* Find and/or create a descriptor for dynamic symbol info. This will
1875 vary based on global or local symbol, and the addend to the reloc. */
1877 static struct elfNN_ia64_dyn_sym_info
*
1878 get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, create
)
1879 struct elfNN_ia64_link_hash_table
*ia64_info
;
1880 struct elf_link_hash_entry
*h
;
1882 const Elf_Internal_Rela
*rel
;
1885 struct elfNN_ia64_dyn_sym_info
**pp
;
1886 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1887 bfd_vma addend
= rel
? rel
->r_addend
: 0;
1890 pp
= &((struct elfNN_ia64_link_hash_entry
*)h
)->info
;
1893 struct elfNN_ia64_local_hash_entry
*loc_h
;
1895 loc_h
= get_local_sym_hash (ia64_info
, abfd
, rel
, create
);
1898 BFD_ASSERT (!create
);
1905 for (dyn_i
= *pp
; dyn_i
&& dyn_i
->addend
!= addend
; dyn_i
= *pp
)
1908 if (dyn_i
== NULL
&& create
)
1910 dyn_i
= ((struct elfNN_ia64_dyn_sym_info
*)
1911 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *dyn_i
));
1913 dyn_i
->addend
= addend
;
1920 get_got (abfd
, info
, ia64_info
)
1922 struct bfd_link_info
*info
;
1923 struct elfNN_ia64_link_hash_table
*ia64_info
;
1928 got
= ia64_info
->got_sec
;
1933 dynobj
= ia64_info
->root
.dynobj
;
1935 ia64_info
->root
.dynobj
= dynobj
= abfd
;
1936 if (!_bfd_elf_create_got_section (dynobj
, info
))
1939 got
= bfd_get_section_by_name (dynobj
, ".got");
1941 ia64_info
->got_sec
= got
;
1943 /* The .got section is always aligned at 8 bytes. */
1944 if (!bfd_set_section_alignment (abfd
, got
, 3))
1947 flags
= bfd_get_section_flags (abfd
, got
);
1948 bfd_set_section_flags (abfd
, got
, SEC_SMALL_DATA
| flags
);
1954 /* Create function descriptor section (.opd). This section is called .opd
1955 because it contains "official prodecure descriptors". The "official"
1956 refers to the fact that these descriptors are used when taking the address
1957 of a procedure, thus ensuring a unique address for each procedure. */
1960 get_fptr (abfd
, info
, ia64_info
)
1962 struct bfd_link_info
*info
;
1963 struct elfNN_ia64_link_hash_table
*ia64_info
;
1968 fptr
= ia64_info
->fptr_sec
;
1971 dynobj
= ia64_info
->root
.dynobj
;
1973 ia64_info
->root
.dynobj
= dynobj
= abfd
;
1975 fptr
= bfd_make_section (dynobj
, ".opd");
1977 || !bfd_set_section_flags (dynobj
, fptr
,
1982 | (info
->pie
? 0 : SEC_READONLY
)
1983 | SEC_LINKER_CREATED
))
1984 || !bfd_set_section_alignment (abfd
, fptr
, 4))
1990 ia64_info
->fptr_sec
= fptr
;
1995 fptr_rel
= bfd_make_section(abfd
, ".rela.opd");
1996 if (fptr_rel
== NULL
1997 || !bfd_set_section_flags (abfd
, fptr_rel
,
1998 (SEC_ALLOC
| SEC_LOAD
2001 | SEC_LINKER_CREATED
2003 || !bfd_set_section_alignment (abfd
, fptr_rel
, 3))
2009 ia64_info
->rel_fptr_sec
= fptr_rel
;
2017 get_pltoff (abfd
, info
, ia64_info
)
2019 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
2020 struct elfNN_ia64_link_hash_table
*ia64_info
;
2025 pltoff
= ia64_info
->pltoff_sec
;
2028 dynobj
= ia64_info
->root
.dynobj
;
2030 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2032 pltoff
= bfd_make_section (dynobj
, ELF_STRING_ia64_pltoff
);
2034 || !bfd_set_section_flags (dynobj
, pltoff
,
2040 | SEC_LINKER_CREATED
))
2041 || !bfd_set_section_alignment (abfd
, pltoff
, 4))
2047 ia64_info
->pltoff_sec
= pltoff
;
2054 get_reloc_section (abfd
, ia64_info
, sec
, create
)
2056 struct elfNN_ia64_link_hash_table
*ia64_info
;
2060 const char *srel_name
;
2064 srel_name
= (bfd_elf_string_from_elf_section
2065 (abfd
, elf_elfheader(abfd
)->e_shstrndx
,
2066 elf_section_data(sec
)->rel_hdr
.sh_name
));
2067 if (srel_name
== NULL
)
2070 BFD_ASSERT ((strncmp (srel_name
, ".rela", 5) == 0
2071 && strcmp (bfd_get_section_name (abfd
, sec
),
2073 || (strncmp (srel_name
, ".rel", 4) == 0
2074 && strcmp (bfd_get_section_name (abfd
, sec
),
2075 srel_name
+4) == 0));
2077 dynobj
= ia64_info
->root
.dynobj
;
2079 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2081 srel
= bfd_get_section_by_name (dynobj
, srel_name
);
2082 if (srel
== NULL
&& create
)
2084 srel
= bfd_make_section (dynobj
, srel_name
);
2086 || !bfd_set_section_flags (dynobj
, srel
,
2091 | SEC_LINKER_CREATED
2093 || !bfd_set_section_alignment (dynobj
, srel
, 3))
2097 if (sec
->flags
& SEC_READONLY
)
2098 ia64_info
->reltext
= 1;
2104 count_dyn_reloc (abfd
, dyn_i
, srel
, type
)
2106 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2110 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2112 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2113 if (rent
->srel
== srel
&& rent
->type
== type
)
2118 rent
= ((struct elfNN_ia64_dyn_reloc_entry
*)
2119 bfd_alloc (abfd
, (bfd_size_type
) sizeof (*rent
)));
2123 rent
->next
= dyn_i
->reloc_entries
;
2127 dyn_i
->reloc_entries
= rent
;
2135 elfNN_ia64_check_relocs (abfd
, info
, sec
, relocs
)
2137 struct bfd_link_info
*info
;
2139 const Elf_Internal_Rela
*relocs
;
2141 struct elfNN_ia64_link_hash_table
*ia64_info
;
2142 const Elf_Internal_Rela
*relend
;
2143 Elf_Internal_Shdr
*symtab_hdr
;
2144 const Elf_Internal_Rela
*rel
;
2145 asection
*got
, *fptr
, *srel
;
2147 if (info
->relocatable
)
2150 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
2151 ia64_info
= elfNN_ia64_hash_table (info
);
2153 got
= fptr
= srel
= NULL
;
2155 relend
= relocs
+ sec
->reloc_count
;
2156 for (rel
= relocs
; rel
< relend
; ++rel
)
2166 NEED_LTOFF_FPTR
= 128,
2172 struct elf_link_hash_entry
*h
= NULL
;
2173 unsigned long r_symndx
= ELFNN_R_SYM (rel
->r_info
);
2174 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2176 bfd_boolean maybe_dynamic
;
2177 int dynrel_type
= R_IA64_NONE
;
2179 if (r_symndx
>= symtab_hdr
->sh_info
)
2181 /* We're dealing with a global symbol -- find its hash entry
2182 and mark it as being referenced. */
2183 long indx
= r_symndx
- symtab_hdr
->sh_info
;
2184 h
= elf_sym_hashes (abfd
)[indx
];
2185 while (h
->root
.type
== bfd_link_hash_indirect
2186 || h
->root
.type
== bfd_link_hash_warning
)
2187 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2189 h
->elf_link_hash_flags
|= ELF_LINK_HASH_REF_REGULAR
;
2192 /* We can only get preliminary data on whether a symbol is
2193 locally or externally defined, as not all of the input files
2194 have yet been processed. Do something with what we know, as
2195 this may help reduce memory usage and processing time later. */
2196 maybe_dynamic
= FALSE
;
2197 if (h
&& ((!info
->executable
2198 && (!info
->symbolic
|| info
->unresolved_syms_in_shared_libs
== RM_IGNORE
))
2199 || ! (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
)
2200 || h
->root
.type
== bfd_link_hash_defweak
))
2201 maybe_dynamic
= TRUE
;
2204 switch (ELFNN_R_TYPE (rel
->r_info
))
2206 case R_IA64_TPREL64MSB
:
2207 case R_IA64_TPREL64LSB
:
2208 if (info
->shared
|| maybe_dynamic
)
2209 need_entry
= NEED_DYNREL
;
2210 dynrel_type
= R_IA64_TPREL64LSB
;
2212 info
->flags
|= DF_STATIC_TLS
;
2215 case R_IA64_LTOFF_TPREL22
:
2216 need_entry
= NEED_TPREL
;
2218 info
->flags
|= DF_STATIC_TLS
;
2221 case R_IA64_DTPREL64MSB
:
2222 case R_IA64_DTPREL64LSB
:
2223 if (info
->shared
|| maybe_dynamic
)
2224 need_entry
= NEED_DYNREL
;
2225 dynrel_type
= R_IA64_DTPREL64LSB
;
2228 case R_IA64_LTOFF_DTPREL22
:
2229 need_entry
= NEED_DTPREL
;
2232 case R_IA64_DTPMOD64MSB
:
2233 case R_IA64_DTPMOD64LSB
:
2234 if (info
->shared
|| maybe_dynamic
)
2235 need_entry
= NEED_DYNREL
;
2236 dynrel_type
= R_IA64_DTPMOD64LSB
;
2239 case R_IA64_LTOFF_DTPMOD22
:
2240 need_entry
= NEED_DTPMOD
;
2243 case R_IA64_LTOFF_FPTR22
:
2244 case R_IA64_LTOFF_FPTR64I
:
2245 case R_IA64_LTOFF_FPTR32MSB
:
2246 case R_IA64_LTOFF_FPTR32LSB
:
2247 case R_IA64_LTOFF_FPTR64MSB
:
2248 case R_IA64_LTOFF_FPTR64LSB
:
2249 need_entry
= NEED_FPTR
| NEED_GOT
| NEED_LTOFF_FPTR
;
2252 case R_IA64_FPTR64I
:
2253 case R_IA64_FPTR32MSB
:
2254 case R_IA64_FPTR32LSB
:
2255 case R_IA64_FPTR64MSB
:
2256 case R_IA64_FPTR64LSB
:
2257 if (info
->shared
|| h
)
2258 need_entry
= NEED_FPTR
| NEED_DYNREL
;
2260 need_entry
= NEED_FPTR
;
2261 dynrel_type
= R_IA64_FPTR64LSB
;
2264 case R_IA64_LTOFF22
:
2265 case R_IA64_LTOFF64I
:
2266 need_entry
= NEED_GOT
;
2269 case R_IA64_LTOFF22X
:
2270 need_entry
= NEED_GOTX
;
2273 case R_IA64_PLTOFF22
:
2274 case R_IA64_PLTOFF64I
:
2275 case R_IA64_PLTOFF64MSB
:
2276 case R_IA64_PLTOFF64LSB
:
2277 need_entry
= NEED_PLTOFF
;
2281 need_entry
|= NEED_MIN_PLT
;
2285 (*info
->callbacks
->warning
)
2286 (info
, _("@pltoff reloc against local symbol"), 0,
2287 abfd
, 0, (bfd_vma
) 0);
2291 case R_IA64_PCREL21B
:
2292 case R_IA64_PCREL60B
:
2293 /* Depending on where this symbol is defined, we may or may not
2294 need a full plt entry. Only skip if we know we'll not need
2295 the entry -- static or symbolic, and the symbol definition
2296 has already been seen. */
2297 if (maybe_dynamic
&& rel
->r_addend
== 0)
2298 need_entry
= NEED_FULL_PLT
;
2304 case R_IA64_DIR32MSB
:
2305 case R_IA64_DIR32LSB
:
2306 case R_IA64_DIR64MSB
:
2307 case R_IA64_DIR64LSB
:
2308 /* Shared objects will always need at least a REL relocation. */
2309 if (info
->shared
|| maybe_dynamic
)
2310 need_entry
= NEED_DYNREL
;
2311 dynrel_type
= R_IA64_DIR64LSB
;
2314 case R_IA64_IPLTMSB
:
2315 case R_IA64_IPLTLSB
:
2316 /* Shared objects will always need at least a REL relocation. */
2317 if (info
->shared
|| maybe_dynamic
)
2318 need_entry
= NEED_DYNREL
;
2319 dynrel_type
= R_IA64_IPLTLSB
;
2322 case R_IA64_PCREL22
:
2323 case R_IA64_PCREL64I
:
2324 case R_IA64_PCREL32MSB
:
2325 case R_IA64_PCREL32LSB
:
2326 case R_IA64_PCREL64MSB
:
2327 case R_IA64_PCREL64LSB
:
2329 need_entry
= NEED_DYNREL
;
2330 dynrel_type
= R_IA64_PCREL64LSB
;
2337 if ((need_entry
& NEED_FPTR
) != 0
2340 (*info
->callbacks
->warning
)
2341 (info
, _("non-zero addend in @fptr reloc"), 0,
2342 abfd
, 0, (bfd_vma
) 0);
2345 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, TRUE
);
2347 /* Record whether or not this is a local symbol. */
2350 /* Create what's needed. */
2351 if (need_entry
& (NEED_GOT
| NEED_GOTX
| NEED_TPREL
2352 | NEED_DTPMOD
| NEED_DTPREL
))
2356 got
= get_got (abfd
, info
, ia64_info
);
2360 if (need_entry
& NEED_GOT
)
2361 dyn_i
->want_got
= 1;
2362 if (need_entry
& NEED_GOTX
)
2363 dyn_i
->want_gotx
= 1;
2364 if (need_entry
& NEED_TPREL
)
2365 dyn_i
->want_tprel
= 1;
2366 if (need_entry
& NEED_DTPMOD
)
2367 dyn_i
->want_dtpmod
= 1;
2368 if (need_entry
& NEED_DTPREL
)
2369 dyn_i
->want_dtprel
= 1;
2371 if (need_entry
& NEED_FPTR
)
2375 fptr
= get_fptr (abfd
, info
, ia64_info
);
2380 /* FPTRs for shared libraries are allocated by the dynamic
2381 linker. Make sure this local symbol will appear in the
2382 dynamic symbol table. */
2383 if (!h
&& info
->shared
)
2385 if (! (_bfd_elfNN_link_record_local_dynamic_symbol
2386 (info
, abfd
, (long) r_symndx
)))
2390 dyn_i
->want_fptr
= 1;
2392 if (need_entry
& NEED_LTOFF_FPTR
)
2393 dyn_i
->want_ltoff_fptr
= 1;
2394 if (need_entry
& (NEED_MIN_PLT
| NEED_FULL_PLT
))
2396 if (!ia64_info
->root
.dynobj
)
2397 ia64_info
->root
.dynobj
= abfd
;
2398 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
2399 dyn_i
->want_plt
= 1;
2401 if (need_entry
& NEED_FULL_PLT
)
2402 dyn_i
->want_plt2
= 1;
2403 if (need_entry
& NEED_PLTOFF
)
2404 dyn_i
->want_pltoff
= 1;
2405 if ((need_entry
& NEED_DYNREL
) && (sec
->flags
& SEC_ALLOC
))
2409 srel
= get_reloc_section (abfd
, ia64_info
, sec
, TRUE
);
2413 if (!count_dyn_reloc (abfd
, dyn_i
, srel
, dynrel_type
))
2421 /* For cleanliness, and potentially faster dynamic loading, allocate
2422 external GOT entries first. */
2425 allocate_global_data_got (dyn_i
, data
)
2426 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2429 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2431 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2432 && ! dyn_i
->want_fptr
2433 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2435 dyn_i
->got_offset
= x
->ofs
;
2438 if (dyn_i
->want_tprel
)
2440 dyn_i
->tprel_offset
= x
->ofs
;
2443 if (dyn_i
->want_dtpmod
)
2445 if (elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2447 dyn_i
->dtpmod_offset
= x
->ofs
;
2452 struct elfNN_ia64_link_hash_table
*ia64_info
;
2454 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2455 if (ia64_info
->self_dtpmod_offset
== (bfd_vma
) -1)
2457 ia64_info
->self_dtpmod_offset
= x
->ofs
;
2460 dyn_i
->dtpmod_offset
= ia64_info
->self_dtpmod_offset
;
2463 if (dyn_i
->want_dtprel
)
2465 dyn_i
->dtprel_offset
= x
->ofs
;
2471 /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2474 allocate_global_fptr_got (dyn_i
, data
)
2475 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2478 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2482 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, R_IA64_FPTR64LSB
))
2484 dyn_i
->got_offset
= x
->ofs
;
2490 /* Lastly, allocate all the GOT entries for local data. */
2493 allocate_local_got (dyn_i
, data
)
2494 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2497 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2499 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2500 && !elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2502 dyn_i
->got_offset
= x
->ofs
;
2508 /* Search for the index of a global symbol in it's defining object file. */
2511 global_sym_index (h
)
2512 struct elf_link_hash_entry
*h
;
2514 struct elf_link_hash_entry
**p
;
2517 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
2518 || h
->root
.type
== bfd_link_hash_defweak
);
2520 obj
= h
->root
.u
.def
.section
->owner
;
2521 for (p
= elf_sym_hashes (obj
); *p
!= h
; ++p
)
2524 return p
- elf_sym_hashes (obj
) + elf_tdata (obj
)->symtab_hdr
.sh_info
;
2527 /* Allocate function descriptors. We can do these for every function
2528 in a main executable that is not exported. */
2531 allocate_fptr (dyn_i
, data
)
2532 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2535 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2537 if (dyn_i
->want_fptr
)
2539 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2542 while (h
->root
.type
== bfd_link_hash_indirect
2543 || h
->root
.type
== bfd_link_hash_warning
)
2544 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2546 if (!x
->info
->executable
2548 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2549 || h
->root
.type
!= bfd_link_hash_undefweak
))
2551 if (h
&& h
->dynindx
== -1)
2553 BFD_ASSERT ((h
->root
.type
== bfd_link_hash_defined
)
2554 || (h
->root
.type
== bfd_link_hash_defweak
));
2556 if (!_bfd_elfNN_link_record_local_dynamic_symbol
2557 (x
->info
, h
->root
.u
.def
.section
->owner
,
2558 global_sym_index (h
)))
2562 dyn_i
->want_fptr
= 0;
2564 else if (h
== NULL
|| h
->dynindx
== -1)
2566 dyn_i
->fptr_offset
= x
->ofs
;
2570 dyn_i
->want_fptr
= 0;
2575 /* Allocate all the minimal PLT entries. */
2578 allocate_plt_entries (dyn_i
, data
)
2579 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2582 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2584 if (dyn_i
->want_plt
)
2586 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2589 while (h
->root
.type
== bfd_link_hash_indirect
2590 || h
->root
.type
== bfd_link_hash_warning
)
2591 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2593 /* ??? Versioned symbols seem to lose ELF_LINK_HASH_NEEDS_PLT. */
2594 if (elfNN_ia64_dynamic_symbol_p (h
, x
->info
, 0))
2596 bfd_size_type offset
= x
->ofs
;
2598 offset
= PLT_HEADER_SIZE
;
2599 dyn_i
->plt_offset
= offset
;
2600 x
->ofs
= offset
+ PLT_MIN_ENTRY_SIZE
;
2602 dyn_i
->want_pltoff
= 1;
2606 dyn_i
->want_plt
= 0;
2607 dyn_i
->want_plt2
= 0;
2613 /* Allocate all the full PLT entries. */
2616 allocate_plt2_entries (dyn_i
, data
)
2617 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2620 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2622 if (dyn_i
->want_plt2
)
2624 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2625 bfd_size_type ofs
= x
->ofs
;
2627 dyn_i
->plt2_offset
= ofs
;
2628 x
->ofs
= ofs
+ PLT_FULL_ENTRY_SIZE
;
2630 while (h
->root
.type
== bfd_link_hash_indirect
2631 || h
->root
.type
== bfd_link_hash_warning
)
2632 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2633 dyn_i
->h
->plt
.offset
= ofs
;
2638 /* Allocate all the PLTOFF entries requested by relocations and
2639 plt entries. We can't share space with allocated FPTR entries,
2640 because the latter are not necessarily addressable by the GP.
2641 ??? Relaxation might be able to determine that they are. */
2644 allocate_pltoff_entries (dyn_i
, data
)
2645 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2648 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2650 if (dyn_i
->want_pltoff
)
2652 dyn_i
->pltoff_offset
= x
->ofs
;
2658 /* Allocate dynamic relocations for those symbols that turned out
2662 allocate_dynrel_entries (dyn_i
, data
)
2663 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2666 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2667 struct elfNN_ia64_link_hash_table
*ia64_info
;
2668 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2669 bfd_boolean dynamic_symbol
, shared
, resolved_zero
;
2671 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2673 /* Note that this can't be used in relation to FPTR relocs below. */
2674 dynamic_symbol
= elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0);
2676 shared
= x
->info
->shared
;
2677 resolved_zero
= (dyn_i
->h
2678 && ELF_ST_VISIBILITY (dyn_i
->h
->other
)
2679 && dyn_i
->h
->root
.type
== bfd_link_hash_undefweak
);
2681 /* Take care of the normal data relocations. */
2683 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2685 int count
= rent
->count
;
2689 case R_IA64_FPTR64LSB
:
2690 /* Allocate one iff !want_fptr and not PIE, which by this point
2691 will be true only if we're actually allocating one statically
2692 in the main executable. Position independent executables
2693 need a relative reloc. */
2694 if (dyn_i
->want_fptr
&& !x
->info
->pie
)
2697 case R_IA64_PCREL64LSB
:
2698 if (!dynamic_symbol
)
2701 case R_IA64_DIR64LSB
:
2702 if (!dynamic_symbol
&& !shared
)
2705 case R_IA64_IPLTLSB
:
2706 if (!dynamic_symbol
&& !shared
)
2708 /* Use two REL relocations for IPLT relocations
2709 against local symbols. */
2710 if (!dynamic_symbol
)
2713 case R_IA64_TPREL64LSB
:
2714 case R_IA64_DTPREL64LSB
:
2715 case R_IA64_DTPMOD64LSB
:
2720 rent
->srel
->_raw_size
+= sizeof (ElfNN_External_Rela
) * count
;
2723 /* Take care of the GOT and PLT relocations. */
2726 && (dynamic_symbol
|| shared
)
2727 && (dyn_i
->want_got
|| dyn_i
->want_gotx
))
2728 || (dyn_i
->want_ltoff_fptr
2730 && dyn_i
->h
->dynindx
!= -1))
2732 if (!dyn_i
->want_ltoff_fptr
2735 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2736 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2738 if ((dynamic_symbol
|| shared
) && dyn_i
->want_tprel
)
2739 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2740 if (dynamic_symbol
&& dyn_i
->want_dtpmod
)
2741 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2742 if (dynamic_symbol
&& dyn_i
->want_dtprel
)
2743 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2744 if (ia64_info
->rel_fptr_sec
&& dyn_i
->want_fptr
)
2746 if (dyn_i
->h
== NULL
|| dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2747 ia64_info
->rel_fptr_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2750 if (!resolved_zero
&& dyn_i
->want_pltoff
)
2752 bfd_size_type t
= 0;
2754 /* Dynamic symbols get one IPLT relocation. Local symbols in
2755 shared libraries get two REL relocations. Local symbols in
2756 main applications get nothing. */
2758 t
= sizeof (ElfNN_External_Rela
);
2760 t
= 2 * sizeof (ElfNN_External_Rela
);
2762 ia64_info
->rel_pltoff_sec
->_raw_size
+= t
;
2769 elfNN_ia64_adjust_dynamic_symbol (info
, h
)
2770 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
2771 struct elf_link_hash_entry
*h
;
2773 /* ??? Undefined symbols with PLT entries should be re-defined
2774 to be the PLT entry. */
2776 /* If this is a weak symbol, and there is a real definition, the
2777 processor independent code will have arranged for us to see the
2778 real definition first, and we can just use the same value. */
2779 if (h
->weakdef
!= NULL
)
2781 BFD_ASSERT (h
->weakdef
->root
.type
== bfd_link_hash_defined
2782 || h
->weakdef
->root
.type
== bfd_link_hash_defweak
);
2783 h
->root
.u
.def
.section
= h
->weakdef
->root
.u
.def
.section
;
2784 h
->root
.u
.def
.value
= h
->weakdef
->root
.u
.def
.value
;
2788 /* If this is a reference to a symbol defined by a dynamic object which
2789 is not a function, we might allocate the symbol in our .dynbss section
2790 and allocate a COPY dynamic relocation.
2792 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
2799 elfNN_ia64_size_dynamic_sections (output_bfd
, info
)
2800 bfd
*output_bfd ATTRIBUTE_UNUSED
;
2801 struct bfd_link_info
*info
;
2803 struct elfNN_ia64_allocate_data data
;
2804 struct elfNN_ia64_link_hash_table
*ia64_info
;
2807 bfd_boolean relplt
= FALSE
;
2809 dynobj
= elf_hash_table(info
)->dynobj
;
2810 ia64_info
= elfNN_ia64_hash_table (info
);
2811 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
2812 BFD_ASSERT(dynobj
!= NULL
);
2815 /* Set the contents of the .interp section to the interpreter. */
2816 if (ia64_info
->root
.dynamic_sections_created
2817 && info
->executable
)
2819 sec
= bfd_get_section_by_name (dynobj
, ".interp");
2820 BFD_ASSERT (sec
!= NULL
);
2821 sec
->contents
= (bfd_byte
*) ELF_DYNAMIC_INTERPRETER
;
2822 sec
->_raw_size
= strlen (ELF_DYNAMIC_INTERPRETER
) + 1;
2825 /* Allocate the GOT entries. */
2827 if (ia64_info
->got_sec
)
2830 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
2831 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
2832 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
2833 ia64_info
->got_sec
->_raw_size
= data
.ofs
;
2836 /* Allocate the FPTR entries. */
2838 if (ia64_info
->fptr_sec
)
2841 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_fptr
, &data
);
2842 ia64_info
->fptr_sec
->_raw_size
= data
.ofs
;
2845 /* Now that we've seen all of the input files, we can decide which
2846 symbols need plt entries. Allocate the minimal PLT entries first.
2847 We do this even though dynamic_sections_created may be FALSE, because
2848 this has the side-effect of clearing want_plt and want_plt2. */
2851 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt_entries
, &data
);
2853 ia64_info
->minplt_entries
= 0;
2856 ia64_info
->minplt_entries
2857 = (data
.ofs
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
2860 /* Align the pointer for the plt2 entries. */
2861 data
.ofs
= (data
.ofs
+ 31) & (bfd_vma
) -32;
2863 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt2_entries
, &data
);
2866 BFD_ASSERT (ia64_info
->root
.dynamic_sections_created
);
2868 ia64_info
->plt_sec
->_raw_size
= data
.ofs
;
2870 /* If we've got a .plt, we need some extra memory for the dynamic
2871 linker. We stuff these in .got.plt. */
2872 sec
= bfd_get_section_by_name (dynobj
, ".got.plt");
2873 sec
->_raw_size
= 8 * PLT_RESERVED_WORDS
;
2876 /* Allocate the PLTOFF entries. */
2878 if (ia64_info
->pltoff_sec
)
2881 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_pltoff_entries
, &data
);
2882 ia64_info
->pltoff_sec
->_raw_size
= data
.ofs
;
2885 if (ia64_info
->root
.dynamic_sections_created
)
2887 /* Allocate space for the dynamic relocations that turned out to be
2890 if (info
->shared
&& ia64_info
->self_dtpmod_offset
!= (bfd_vma
) -1)
2891 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2892 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_dynrel_entries
, &data
);
2895 /* We have now determined the sizes of the various dynamic sections.
2896 Allocate memory for them. */
2897 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
2901 if (!(sec
->flags
& SEC_LINKER_CREATED
))
2904 /* If we don't need this section, strip it from the output file.
2905 There were several sections primarily related to dynamic
2906 linking that must be create before the linker maps input
2907 sections to output sections. The linker does that before
2908 bfd_elf_size_dynamic_sections is called, and it is that
2909 function which decides whether anything needs to go into
2912 strip
= (sec
->_raw_size
== 0);
2914 if (sec
== ia64_info
->got_sec
)
2916 else if (sec
== ia64_info
->rel_got_sec
)
2919 ia64_info
->rel_got_sec
= NULL
;
2921 /* We use the reloc_count field as a counter if we need to
2922 copy relocs into the output file. */
2923 sec
->reloc_count
= 0;
2925 else if (sec
== ia64_info
->fptr_sec
)
2928 ia64_info
->fptr_sec
= NULL
;
2930 else if (sec
== ia64_info
->plt_sec
)
2933 ia64_info
->plt_sec
= NULL
;
2935 else if (sec
== ia64_info
->pltoff_sec
)
2938 ia64_info
->pltoff_sec
= NULL
;
2940 else if (sec
== ia64_info
->rel_pltoff_sec
)
2943 ia64_info
->rel_pltoff_sec
= NULL
;
2947 /* We use the reloc_count field as a counter if we need to
2948 copy relocs into the output file. */
2949 sec
->reloc_count
= 0;
2956 /* It's OK to base decisions on the section name, because none
2957 of the dynobj section names depend upon the input files. */
2958 name
= bfd_get_section_name (dynobj
, sec
);
2960 if (strcmp (name
, ".got.plt") == 0)
2962 else if (strncmp (name
, ".rel", 4) == 0)
2966 /* We use the reloc_count field as a counter if we need to
2967 copy relocs into the output file. */
2968 sec
->reloc_count
= 0;
2976 _bfd_strip_section_from_output (info
, sec
);
2979 /* Allocate memory for the section contents. */
2980 sec
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, sec
->_raw_size
);
2981 if (sec
->contents
== NULL
&& sec
->_raw_size
!= 0)
2986 if (elf_hash_table (info
)->dynamic_sections_created
)
2988 /* Add some entries to the .dynamic section. We fill in the values
2989 later (in finish_dynamic_sections) but we must add the entries now
2990 so that we get the correct size for the .dynamic section. */
2992 if (info
->executable
)
2994 /* The DT_DEBUG entry is filled in by the dynamic linker and used
2996 #define add_dynamic_entry(TAG, VAL) \
2997 bfd_elfNN_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
2999 if (!add_dynamic_entry (DT_DEBUG
, 0))
3003 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE
, 0))
3005 if (!add_dynamic_entry (DT_PLTGOT
, 0))
3010 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
3011 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3012 || !add_dynamic_entry (DT_JMPREL
, 0))
3016 if (!add_dynamic_entry (DT_RELA
, 0)
3017 || !add_dynamic_entry (DT_RELASZ
, 0)
3018 || !add_dynamic_entry (DT_RELAENT
, sizeof (ElfNN_External_Rela
)))
3021 if (ia64_info
->reltext
)
3023 if (!add_dynamic_entry (DT_TEXTREL
, 0))
3025 info
->flags
|= DF_TEXTREL
;
3029 /* ??? Perhaps force __gp local. */
3034 static bfd_reloc_status_type
3035 elfNN_ia64_install_value (abfd
, hit_addr
, v
, r_type
)
3039 unsigned int r_type
;
3041 const struct ia64_operand
*op
;
3042 int bigendian
= 0, shift
= 0;
3043 bfd_vma t0
, t1
, insn
, dword
;
3044 enum ia64_opnd opnd
;
3047 #ifdef BFD_HOST_U_64_BIT
3048 BFD_HOST_U_64_BIT val
= (BFD_HOST_U_64_BIT
) v
;
3053 opnd
= IA64_OPND_NIL
;
3058 return bfd_reloc_ok
;
3060 /* Instruction relocations. */
3063 case R_IA64_TPREL14
:
3064 case R_IA64_DTPREL14
:
3065 opnd
= IA64_OPND_IMM14
;
3068 case R_IA64_PCREL21F
: opnd
= IA64_OPND_TGT25
; break;
3069 case R_IA64_PCREL21M
: opnd
= IA64_OPND_TGT25b
; break;
3070 case R_IA64_PCREL60B
: opnd
= IA64_OPND_TGT64
; break;
3071 case R_IA64_PCREL21B
:
3072 case R_IA64_PCREL21BI
:
3073 opnd
= IA64_OPND_TGT25c
;
3077 case R_IA64_GPREL22
:
3078 case R_IA64_LTOFF22
:
3079 case R_IA64_LTOFF22X
:
3080 case R_IA64_PLTOFF22
:
3081 case R_IA64_PCREL22
:
3082 case R_IA64_LTOFF_FPTR22
:
3083 case R_IA64_TPREL22
:
3084 case R_IA64_DTPREL22
:
3085 case R_IA64_LTOFF_TPREL22
:
3086 case R_IA64_LTOFF_DTPMOD22
:
3087 case R_IA64_LTOFF_DTPREL22
:
3088 opnd
= IA64_OPND_IMM22
;
3092 case R_IA64_GPREL64I
:
3093 case R_IA64_LTOFF64I
:
3094 case R_IA64_PLTOFF64I
:
3095 case R_IA64_PCREL64I
:
3096 case R_IA64_FPTR64I
:
3097 case R_IA64_LTOFF_FPTR64I
:
3098 case R_IA64_TPREL64I
:
3099 case R_IA64_DTPREL64I
:
3100 opnd
= IA64_OPND_IMMU64
;
3103 /* Data relocations. */
3105 case R_IA64_DIR32MSB
:
3106 case R_IA64_GPREL32MSB
:
3107 case R_IA64_FPTR32MSB
:
3108 case R_IA64_PCREL32MSB
:
3109 case R_IA64_LTOFF_FPTR32MSB
:
3110 case R_IA64_SEGREL32MSB
:
3111 case R_IA64_SECREL32MSB
:
3112 case R_IA64_LTV32MSB
:
3113 case R_IA64_DTPREL32MSB
:
3114 size
= 4; bigendian
= 1;
3117 case R_IA64_DIR32LSB
:
3118 case R_IA64_GPREL32LSB
:
3119 case R_IA64_FPTR32LSB
:
3120 case R_IA64_PCREL32LSB
:
3121 case R_IA64_LTOFF_FPTR32LSB
:
3122 case R_IA64_SEGREL32LSB
:
3123 case R_IA64_SECREL32LSB
:
3124 case R_IA64_LTV32LSB
:
3125 case R_IA64_DTPREL32LSB
:
3126 size
= 4; bigendian
= 0;
3129 case R_IA64_DIR64MSB
:
3130 case R_IA64_GPREL64MSB
:
3131 case R_IA64_PLTOFF64MSB
:
3132 case R_IA64_FPTR64MSB
:
3133 case R_IA64_PCREL64MSB
:
3134 case R_IA64_LTOFF_FPTR64MSB
:
3135 case R_IA64_SEGREL64MSB
:
3136 case R_IA64_SECREL64MSB
:
3137 case R_IA64_LTV64MSB
:
3138 case R_IA64_TPREL64MSB
:
3139 case R_IA64_DTPMOD64MSB
:
3140 case R_IA64_DTPREL64MSB
:
3141 size
= 8; bigendian
= 1;
3144 case R_IA64_DIR64LSB
:
3145 case R_IA64_GPREL64LSB
:
3146 case R_IA64_PLTOFF64LSB
:
3147 case R_IA64_FPTR64LSB
:
3148 case R_IA64_PCREL64LSB
:
3149 case R_IA64_LTOFF_FPTR64LSB
:
3150 case R_IA64_SEGREL64LSB
:
3151 case R_IA64_SECREL64LSB
:
3152 case R_IA64_LTV64LSB
:
3153 case R_IA64_TPREL64LSB
:
3154 case R_IA64_DTPMOD64LSB
:
3155 case R_IA64_DTPREL64LSB
:
3156 size
= 8; bigendian
= 0;
3159 /* Unsupported / Dynamic relocations. */
3161 return bfd_reloc_notsupported
;
3166 case IA64_OPND_IMMU64
:
3167 hit_addr
-= (long) hit_addr
& 0x3;
3168 t0
= bfd_get_64 (abfd
, hit_addr
);
3169 t1
= bfd_get_64 (abfd
, hit_addr
+ 8);
3171 /* tmpl/s: bits 0.. 5 in t0
3172 slot 0: bits 5..45 in t0
3173 slot 1: bits 46..63 in t0, bits 0..22 in t1
3174 slot 2: bits 23..63 in t1 */
3176 /* First, clear the bits that form the 64 bit constant. */
3177 t0
&= ~(0x3ffffLL
<< 46);
3179 | (( (0x07fLL
<< 13) | (0x1ffLL
<< 27)
3180 | (0x01fLL
<< 22) | (0x001LL
<< 21)
3181 | (0x001LL
<< 36)) << 23));
3183 t0
|= ((val
>> 22) & 0x03ffffLL
) << 46; /* 18 lsbs of imm41 */
3184 t1
|= ((val
>> 40) & 0x7fffffLL
) << 0; /* 23 msbs of imm41 */
3185 t1
|= ( (((val
>> 0) & 0x07f) << 13) /* imm7b */
3186 | (((val
>> 7) & 0x1ff) << 27) /* imm9d */
3187 | (((val
>> 16) & 0x01f) << 22) /* imm5c */
3188 | (((val
>> 21) & 0x001) << 21) /* ic */
3189 | (((val
>> 63) & 0x001) << 36)) << 23; /* i */
3191 bfd_put_64 (abfd
, t0
, hit_addr
);
3192 bfd_put_64 (abfd
, t1
, hit_addr
+ 8);
3195 case IA64_OPND_TGT64
:
3196 hit_addr
-= (long) hit_addr
& 0x3;
3197 t0
= bfd_get_64 (abfd
, hit_addr
);
3198 t1
= bfd_get_64 (abfd
, hit_addr
+ 8);
3200 /* tmpl/s: bits 0.. 5 in t0
3201 slot 0: bits 5..45 in t0
3202 slot 1: bits 46..63 in t0, bits 0..22 in t1
3203 slot 2: bits 23..63 in t1 */
3205 /* First, clear the bits that form the 64 bit constant. */
3206 t0
&= ~(0x3ffffLL
<< 46);
3208 | ((1LL << 36 | 0xfffffLL
<< 13) << 23));
3211 t0
|= ((val
>> 20) & 0xffffLL
) << 2 << 46; /* 16 lsbs of imm39 */
3212 t1
|= ((val
>> 36) & 0x7fffffLL
) << 0; /* 23 msbs of imm39 */
3213 t1
|= ((((val
>> 0) & 0xfffffLL
) << 13) /* imm20b */
3214 | (((val
>> 59) & 0x1LL
) << 36)) << 23; /* i */
3216 bfd_put_64 (abfd
, t0
, hit_addr
);
3217 bfd_put_64 (abfd
, t1
, hit_addr
+ 8);
3221 switch ((long) hit_addr
& 0x3)
3223 case 0: shift
= 5; break;
3224 case 1: shift
= 14; hit_addr
+= 3; break;
3225 case 2: shift
= 23; hit_addr
+= 6; break;
3226 case 3: return bfd_reloc_notsupported
; /* shouldn't happen... */
3228 dword
= bfd_get_64 (abfd
, hit_addr
);
3229 insn
= (dword
>> shift
) & 0x1ffffffffffLL
;
3231 op
= elf64_ia64_operands
+ opnd
;
3232 err
= (*op
->insert
) (op
, val
, (ia64_insn
*)& insn
);
3234 return bfd_reloc_overflow
;
3236 dword
&= ~(0x1ffffffffffLL
<< shift
);
3237 dword
|= (insn
<< shift
);
3238 bfd_put_64 (abfd
, dword
, hit_addr
);
3242 /* A data relocation. */
3245 bfd_putb32 (val
, hit_addr
);
3247 bfd_putb64 (val
, hit_addr
);
3250 bfd_putl32 (val
, hit_addr
);
3252 bfd_putl64 (val
, hit_addr
);
3256 return bfd_reloc_ok
;
3260 elfNN_ia64_install_dyn_reloc (abfd
, info
, sec
, srel
, offset
, type
,
3263 struct bfd_link_info
*info
;
3271 Elf_Internal_Rela outrel
;
3274 BFD_ASSERT (dynindx
!= -1);
3275 outrel
.r_info
= ELFNN_R_INFO (dynindx
, type
);
3276 outrel
.r_addend
= addend
;
3277 outrel
.r_offset
= _bfd_elf_section_offset (abfd
, info
, sec
, offset
);
3278 if (outrel
.r_offset
>= (bfd_vma
) -2)
3280 /* Run for the hills. We shouldn't be outputting a relocation
3281 for this. So do what everyone else does and output a no-op. */
3282 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
3283 outrel
.r_addend
= 0;
3284 outrel
.r_offset
= 0;
3287 outrel
.r_offset
+= sec
->output_section
->vma
+ sec
->output_offset
;
3289 loc
= srel
->contents
;
3290 loc
+= srel
->reloc_count
++ * sizeof (ElfNN_External_Rela
);
3291 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3292 BFD_ASSERT (sizeof (ElfNN_External_Rela
) * srel
->reloc_count
3293 <= srel
->_cooked_size
);
3296 /* Store an entry for target address TARGET_ADDR in the linkage table
3297 and return the gp-relative address of the linkage table entry. */
3300 set_got_entry (abfd
, info
, dyn_i
, dynindx
, addend
, value
, dyn_r_type
)
3302 struct bfd_link_info
*info
;
3303 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3307 unsigned int dyn_r_type
;
3309 struct elfNN_ia64_link_hash_table
*ia64_info
;
3314 ia64_info
= elfNN_ia64_hash_table (info
);
3315 got_sec
= ia64_info
->got_sec
;
3319 case R_IA64_TPREL64LSB
:
3320 done
= dyn_i
->tprel_done
;
3321 dyn_i
->tprel_done
= TRUE
;
3322 got_offset
= dyn_i
->tprel_offset
;
3324 case R_IA64_DTPMOD64LSB
:
3325 if (dyn_i
->dtpmod_offset
!= ia64_info
->self_dtpmod_offset
)
3327 done
= dyn_i
->dtpmod_done
;
3328 dyn_i
->dtpmod_done
= TRUE
;
3332 done
= ia64_info
->self_dtpmod_done
;
3333 ia64_info
->self_dtpmod_done
= TRUE
;
3336 got_offset
= dyn_i
->dtpmod_offset
;
3338 case R_IA64_DTPREL64LSB
:
3339 done
= dyn_i
->dtprel_done
;
3340 dyn_i
->dtprel_done
= TRUE
;
3341 got_offset
= dyn_i
->dtprel_offset
;
3344 done
= dyn_i
->got_done
;
3345 dyn_i
->got_done
= TRUE
;
3346 got_offset
= dyn_i
->got_offset
;
3350 BFD_ASSERT ((got_offset
& 7) == 0);
3354 /* Store the target address in the linkage table entry. */
3355 bfd_put_64 (abfd
, value
, got_sec
->contents
+ got_offset
);
3357 /* Install a dynamic relocation if needed. */
3360 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3361 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
3362 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3363 || elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, info
, dyn_r_type
)
3364 || (dynindx
!= -1 && dyn_r_type
== R_IA64_FPTR64LSB
))
3365 && (!dyn_i
->want_ltoff_fptr
3368 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3371 && dyn_r_type
!= R_IA64_TPREL64LSB
3372 && dyn_r_type
!= R_IA64_DTPMOD64LSB
3373 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3375 dyn_r_type
= R_IA64_REL64LSB
;
3380 if (bfd_big_endian (abfd
))
3384 case R_IA64_REL64LSB
:
3385 dyn_r_type
= R_IA64_REL64MSB
;
3387 case R_IA64_DIR64LSB
:
3388 dyn_r_type
= R_IA64_DIR64MSB
;
3390 case R_IA64_FPTR64LSB
:
3391 dyn_r_type
= R_IA64_FPTR64MSB
;
3393 case R_IA64_TPREL64LSB
:
3394 dyn_r_type
= R_IA64_TPREL64MSB
;
3396 case R_IA64_DTPMOD64LSB
:
3397 dyn_r_type
= R_IA64_DTPMOD64MSB
;
3399 case R_IA64_DTPREL64LSB
:
3400 dyn_r_type
= R_IA64_DTPREL64MSB
;
3408 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, got_sec
,
3409 ia64_info
->rel_got_sec
,
3410 got_offset
, dyn_r_type
,
3415 /* Return the address of the linkage table entry. */
3416 value
= (got_sec
->output_section
->vma
3417 + got_sec
->output_offset
3423 /* Fill in a function descriptor consisting of the function's code
3424 address and its global pointer. Return the descriptor's address. */
3427 set_fptr_entry (abfd
, info
, dyn_i
, value
)
3429 struct bfd_link_info
*info
;
3430 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3433 struct elfNN_ia64_link_hash_table
*ia64_info
;
3436 ia64_info
= elfNN_ia64_hash_table (info
);
3437 fptr_sec
= ia64_info
->fptr_sec
;
3439 if (!dyn_i
->fptr_done
)
3441 dyn_i
->fptr_done
= 1;
3443 /* Fill in the function descriptor. */
3444 bfd_put_64 (abfd
, value
, fptr_sec
->contents
+ dyn_i
->fptr_offset
);
3445 bfd_put_64 (abfd
, _bfd_get_gp_value (abfd
),
3446 fptr_sec
->contents
+ dyn_i
->fptr_offset
+ 8);
3447 if (ia64_info
->rel_fptr_sec
)
3449 Elf_Internal_Rela outrel
;
3452 if (bfd_little_endian (abfd
))
3453 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTLSB
);
3455 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTMSB
);
3456 outrel
.r_addend
= value
;
3457 outrel
.r_offset
= (fptr_sec
->output_section
->vma
3458 + fptr_sec
->output_offset
3459 + dyn_i
->fptr_offset
);
3460 loc
= ia64_info
->rel_fptr_sec
->contents
;
3461 loc
+= ia64_info
->rel_fptr_sec
->reloc_count
++
3462 * sizeof (ElfNN_External_Rela
);
3463 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3467 /* Return the descriptor's address. */
3468 value
= (fptr_sec
->output_section
->vma
3469 + fptr_sec
->output_offset
3470 + dyn_i
->fptr_offset
);
3475 /* Fill in a PLTOFF entry consisting of the function's code address
3476 and its global pointer. Return the descriptor's address. */
3479 set_pltoff_entry (abfd
, info
, dyn_i
, value
, is_plt
)
3481 struct bfd_link_info
*info
;
3482 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3486 struct elfNN_ia64_link_hash_table
*ia64_info
;
3487 asection
*pltoff_sec
;
3489 ia64_info
= elfNN_ia64_hash_table (info
);
3490 pltoff_sec
= ia64_info
->pltoff_sec
;
3492 /* Don't do anything if this symbol uses a real PLT entry. In
3493 that case, we'll fill this in during finish_dynamic_symbol. */
3494 if ((! dyn_i
->want_plt
|| is_plt
)
3495 && !dyn_i
->pltoff_done
)
3497 bfd_vma gp
= _bfd_get_gp_value (abfd
);
3499 /* Fill in the function descriptor. */
3500 bfd_put_64 (abfd
, value
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
);
3501 bfd_put_64 (abfd
, gp
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
+ 8);
3503 /* Install dynamic relocations if needed. */
3507 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3508 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3510 unsigned int dyn_r_type
;
3512 if (bfd_big_endian (abfd
))
3513 dyn_r_type
= R_IA64_REL64MSB
;
3515 dyn_r_type
= R_IA64_REL64LSB
;
3517 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3518 ia64_info
->rel_pltoff_sec
,
3519 dyn_i
->pltoff_offset
,
3520 dyn_r_type
, 0, value
);
3521 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3522 ia64_info
->rel_pltoff_sec
,
3523 dyn_i
->pltoff_offset
+ 8,
3527 dyn_i
->pltoff_done
= 1;
3530 /* Return the descriptor's address. */
3531 value
= (pltoff_sec
->output_section
->vma
3532 + pltoff_sec
->output_offset
3533 + dyn_i
->pltoff_offset
);
3538 /* Return the base VMA address which should be subtracted from real addresses
3539 when resolving @tprel() relocation.
3540 Main program TLS (whose template starts at PT_TLS p_vaddr)
3541 is assigned offset round(16, PT_TLS p_align). */
3544 elfNN_ia64_tprel_base (info
)
3545 struct bfd_link_info
*info
;
3547 asection
*tls_sec
= elf_hash_table (info
)->tls_sec
;
3549 BFD_ASSERT (tls_sec
!= NULL
);
3550 return tls_sec
->vma
- align_power ((bfd_vma
) 16, tls_sec
->alignment_power
);
3553 /* Return the base VMA address which should be subtracted from real addresses
3554 when resolving @dtprel() relocation.
3555 This is PT_TLS segment p_vaddr. */
3558 elfNN_ia64_dtprel_base (info
)
3559 struct bfd_link_info
*info
;
3561 BFD_ASSERT (elf_hash_table (info
)->tls_sec
!= NULL
);
3562 return elf_hash_table (info
)->tls_sec
->vma
;
3565 /* Called through qsort to sort the .IA_64.unwind section during a
3566 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3567 to the output bfd so we can do proper endianness frobbing. */
3569 static bfd
*elfNN_ia64_unwind_entry_compare_bfd
;
3572 elfNN_ia64_unwind_entry_compare (a
, b
)
3578 av
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, a
);
3579 bv
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, b
);
3581 return (av
< bv
? -1 : av
> bv
? 1 : 0);
3584 /* Make sure we've got ourselves a nice fat __gp value. */
3586 elfNN_ia64_choose_gp (abfd
, info
)
3588 struct bfd_link_info
*info
;
3590 bfd_vma min_vma
= (bfd_vma
) -1, max_vma
= 0;
3591 bfd_vma min_short_vma
= min_vma
, max_short_vma
= 0;
3592 struct elf_link_hash_entry
*gp
;
3595 struct elfNN_ia64_link_hash_table
*ia64_info
;
3597 ia64_info
= elfNN_ia64_hash_table (info
);
3599 /* Find the min and max vma of all sections marked short. Also collect
3600 min and max vma of any type, for use in selecting a nice gp. */
3601 for (os
= abfd
->sections
; os
; os
= os
->next
)
3605 if ((os
->flags
& SEC_ALLOC
) == 0)
3609 hi
= os
->vma
+ os
->_raw_size
;
3617 if (os
->flags
& SEC_SMALL_DATA
)
3619 if (min_short_vma
> lo
)
3621 if (max_short_vma
< hi
)
3626 /* See if the user wants to force a value. */
3627 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3631 && (gp
->root
.type
== bfd_link_hash_defined
3632 || gp
->root
.type
== bfd_link_hash_defweak
))
3634 asection
*gp_sec
= gp
->root
.u
.def
.section
;
3635 gp_val
= (gp
->root
.u
.def
.value
3636 + gp_sec
->output_section
->vma
3637 + gp_sec
->output_offset
);
3641 /* Pick a sensible value. */
3643 asection
*got_sec
= ia64_info
->got_sec
;
3645 /* Start with just the address of the .got. */
3647 gp_val
= got_sec
->output_section
->vma
;
3648 else if (max_short_vma
!= 0)
3649 gp_val
= min_short_vma
;
3653 /* If it is possible to address the entire image, but we
3654 don't with the choice above, adjust. */
3655 if (max_vma
- min_vma
< 0x400000
3656 && max_vma
- gp_val
<= 0x200000
3657 && gp_val
- min_vma
> 0x200000)
3658 gp_val
= min_vma
+ 0x200000;
3659 else if (max_short_vma
!= 0)
3661 /* If we don't cover all the short data, adjust. */
3662 if (max_short_vma
- gp_val
>= 0x200000)
3663 gp_val
= min_short_vma
+ 0x200000;
3665 /* If we're addressing stuff past the end, adjust back. */
3666 if (gp_val
> max_vma
)
3667 gp_val
= max_vma
- 0x200000 + 8;
3671 /* Validate whether all SHF_IA_64_SHORT sections are within
3672 range of the chosen GP. */
3674 if (max_short_vma
!= 0)
3676 if (max_short_vma
- min_short_vma
>= 0x400000)
3678 (*_bfd_error_handler
)
3679 (_("%s: short data segment overflowed (0x%lx >= 0x400000)"),
3680 bfd_get_filename (abfd
),
3681 (unsigned long) (max_short_vma
- min_short_vma
));
3684 else if ((gp_val
> min_short_vma
3685 && gp_val
- min_short_vma
> 0x200000)
3686 || (gp_val
< max_short_vma
3687 && max_short_vma
- gp_val
>= 0x200000))
3689 (*_bfd_error_handler
)
3690 (_("%s: __gp does not cover short data segment"),
3691 bfd_get_filename (abfd
));
3696 _bfd_set_gp_value (abfd
, gp_val
);
3702 elfNN_ia64_final_link (abfd
, info
)
3704 struct bfd_link_info
*info
;
3706 struct elfNN_ia64_link_hash_table
*ia64_info
;
3707 asection
*unwind_output_sec
;
3709 ia64_info
= elfNN_ia64_hash_table (info
);
3711 /* Make sure we've got ourselves a nice fat __gp value. */
3712 if (!info
->relocatable
)
3714 bfd_vma gp_val
= _bfd_get_gp_value (abfd
);
3715 struct elf_link_hash_entry
*gp
;
3719 if (! elfNN_ia64_choose_gp (abfd
, info
))
3721 gp_val
= _bfd_get_gp_value (abfd
);
3724 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3728 gp
->root
.type
= bfd_link_hash_defined
;
3729 gp
->root
.u
.def
.value
= gp_val
;
3730 gp
->root
.u
.def
.section
= bfd_abs_section_ptr
;
3734 /* If we're producing a final executable, we need to sort the contents
3735 of the .IA_64.unwind section. Force this section to be relocated
3736 into memory rather than written immediately to the output file. */
3737 unwind_output_sec
= NULL
;
3738 if (!info
->relocatable
)
3740 asection
*s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_unwind
);
3743 unwind_output_sec
= s
->output_section
;
3744 unwind_output_sec
->contents
3745 = bfd_malloc (unwind_output_sec
->_raw_size
);
3746 if (unwind_output_sec
->contents
== NULL
)
3751 /* Invoke the regular ELF backend linker to do all the work. */
3752 if (!bfd_elfNN_bfd_final_link (abfd
, info
))
3755 if (unwind_output_sec
)
3757 elfNN_ia64_unwind_entry_compare_bfd
= abfd
;
3758 qsort (unwind_output_sec
->contents
,
3759 (size_t) (unwind_output_sec
->_raw_size
/ 24),
3761 elfNN_ia64_unwind_entry_compare
);
3763 if (! bfd_set_section_contents (abfd
, unwind_output_sec
,
3764 unwind_output_sec
->contents
, (bfd_vma
) 0,
3765 unwind_output_sec
->_raw_size
))
3773 elfNN_ia64_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
3774 contents
, relocs
, local_syms
, local_sections
)
3776 struct bfd_link_info
*info
;
3778 asection
*input_section
;
3780 Elf_Internal_Rela
*relocs
;
3781 Elf_Internal_Sym
*local_syms
;
3782 asection
**local_sections
;
3784 struct elfNN_ia64_link_hash_table
*ia64_info
;
3785 Elf_Internal_Shdr
*symtab_hdr
;
3786 Elf_Internal_Rela
*rel
;
3787 Elf_Internal_Rela
*relend
;
3789 bfd_boolean ret_val
= TRUE
; /* for non-fatal errors */
3792 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3793 ia64_info
= elfNN_ia64_hash_table (info
);
3795 /* Infect various flags from the input section to the output section. */
3796 if (info
->relocatable
)
3800 flags
= elf_section_data(input_section
)->this_hdr
.sh_flags
;
3801 flags
&= SHF_IA_64_NORECOV
;
3803 elf_section_data(input_section
->output_section
)
3804 ->this_hdr
.sh_flags
|= flags
;
3808 gp_val
= _bfd_get_gp_value (output_bfd
);
3809 srel
= get_reloc_section (input_bfd
, ia64_info
, input_section
, FALSE
);
3812 relend
= relocs
+ input_section
->reloc_count
;
3813 for (; rel
< relend
; ++rel
)
3815 struct elf_link_hash_entry
*h
;
3816 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3817 bfd_reloc_status_type r
;
3818 reloc_howto_type
*howto
;
3819 unsigned long r_symndx
;
3820 Elf_Internal_Sym
*sym
;
3821 unsigned int r_type
;
3825 bfd_boolean dynamic_symbol_p
;
3826 bfd_boolean undef_weak_ref
;
3828 r_type
= ELFNN_R_TYPE (rel
->r_info
);
3829 if (r_type
> R_IA64_MAX_RELOC_CODE
)
3831 (*_bfd_error_handler
)
3832 (_("%s: unknown relocation type %d"),
3833 bfd_archive_filename (input_bfd
), (int)r_type
);
3834 bfd_set_error (bfd_error_bad_value
);
3839 howto
= lookup_howto (r_type
);
3840 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
3844 undef_weak_ref
= FALSE
;
3846 if (r_symndx
< symtab_hdr
->sh_info
)
3848 /* Reloc against local symbol. */
3849 sym
= local_syms
+ r_symndx
;
3850 sym_sec
= local_sections
[r_symndx
];
3851 value
= _bfd_elf_rela_local_sym (output_bfd
, sym
, sym_sec
, rel
);
3852 if ((sym_sec
->flags
& SEC_MERGE
)
3853 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
3854 && sym_sec
->sec_info_type
== ELF_INFO_TYPE_MERGE
)
3856 struct elfNN_ia64_local_hash_entry
*loc_h
;
3858 loc_h
= get_local_sym_hash (ia64_info
, input_bfd
, rel
, FALSE
);
3859 if (loc_h
&& ! loc_h
->sec_merge_done
)
3861 struct elfNN_ia64_dyn_sym_info
*dynent
;
3864 for (dynent
= loc_h
->info
; dynent
; dynent
= dynent
->next
)
3868 _bfd_merged_section_offset (output_bfd
, &msec
,
3869 elf_section_data (msec
)->
3874 dynent
->addend
-= sym
->st_value
;
3875 dynent
->addend
+= msec
->output_section
->vma
3876 + msec
->output_offset
3877 - sym_sec
->output_section
->vma
3878 - sym_sec
->output_offset
;
3880 loc_h
->sec_merge_done
= 1;
3886 bfd_boolean unresolved_reloc
;
3889 RELOC_FOR_GLOBAL_SYMBOL (h
, elf_sym_hashes (input_bfd
),
3891 symtab_hdr
, value
, sym_sec
,
3892 unresolved_reloc
, info
,
3895 if (h
->root
.type
== bfd_link_hash_undefweak
)
3896 undef_weak_ref
= TRUE
;
3901 hit_addr
= contents
+ rel
->r_offset
;
3902 value
+= rel
->r_addend
;
3903 dynamic_symbol_p
= elfNN_ia64_dynamic_symbol_p (h
, info
, r_type
);
3914 case R_IA64_DIR32MSB
:
3915 case R_IA64_DIR32LSB
:
3916 case R_IA64_DIR64MSB
:
3917 case R_IA64_DIR64LSB
:
3918 /* Install a dynamic relocation for this reloc. */
3919 if ((dynamic_symbol_p
|| info
->shared
)
3921 && (input_section
->flags
& SEC_ALLOC
) != 0)
3923 unsigned int dyn_r_type
;
3927 BFD_ASSERT (srel
!= NULL
);
3929 /* If we don't need dynamic symbol lookup, find a
3930 matching RELATIVE relocation. */
3931 dyn_r_type
= r_type
;
3932 if (dynamic_symbol_p
)
3934 dynindx
= h
->dynindx
;
3935 addend
= rel
->r_addend
;
3942 case R_IA64_DIR32MSB
:
3943 dyn_r_type
= R_IA64_REL32MSB
;
3945 case R_IA64_DIR32LSB
:
3946 dyn_r_type
= R_IA64_REL32LSB
;
3948 case R_IA64_DIR64MSB
:
3949 dyn_r_type
= R_IA64_REL64MSB
;
3951 case R_IA64_DIR64LSB
:
3952 dyn_r_type
= R_IA64_REL64LSB
;
3956 /* We can't represent this without a dynamic symbol.
3957 Adjust the relocation to be against an output
3958 section symbol, which are always present in the
3959 dynamic symbol table. */
3960 /* ??? People shouldn't be doing non-pic code in
3961 shared libraries. Hork. */
3962 (*_bfd_error_handler
)
3963 (_("%s: linking non-pic code in a shared library"),
3964 bfd_archive_filename (input_bfd
));
3972 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
3973 srel
, rel
->r_offset
, dyn_r_type
,
3978 case R_IA64_LTV32MSB
:
3979 case R_IA64_LTV32LSB
:
3980 case R_IA64_LTV64MSB
:
3981 case R_IA64_LTV64LSB
:
3982 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
3985 case R_IA64_GPREL22
:
3986 case R_IA64_GPREL64I
:
3987 case R_IA64_GPREL32MSB
:
3988 case R_IA64_GPREL32LSB
:
3989 case R_IA64_GPREL64MSB
:
3990 case R_IA64_GPREL64LSB
:
3991 if (dynamic_symbol_p
)
3993 (*_bfd_error_handler
)
3994 (_("%s: @gprel relocation against dynamic symbol %s"),
3995 bfd_archive_filename (input_bfd
), h
->root
.root
.string
);
4000 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4003 case R_IA64_LTOFF22
:
4004 case R_IA64_LTOFF22X
:
4005 case R_IA64_LTOFF64I
:
4006 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4007 value
= set_got_entry (input_bfd
, info
, dyn_i
, (h
? h
->dynindx
: -1),
4008 rel
->r_addend
, value
, R_IA64_DIR64LSB
);
4010 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4013 case R_IA64_PLTOFF22
:
4014 case R_IA64_PLTOFF64I
:
4015 case R_IA64_PLTOFF64MSB
:
4016 case R_IA64_PLTOFF64LSB
:
4017 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4018 value
= set_pltoff_entry (output_bfd
, info
, dyn_i
, value
, FALSE
);
4020 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4023 case R_IA64_FPTR64I
:
4024 case R_IA64_FPTR32MSB
:
4025 case R_IA64_FPTR32LSB
:
4026 case R_IA64_FPTR64MSB
:
4027 case R_IA64_FPTR64LSB
:
4028 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4029 if (dyn_i
->want_fptr
)
4031 if (!undef_weak_ref
)
4032 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4034 if (!dyn_i
->want_fptr
|| info
->pie
)
4037 unsigned int dyn_r_type
= r_type
;
4038 bfd_vma addend
= rel
->r_addend
;
4040 /* Otherwise, we expect the dynamic linker to create
4043 if (dyn_i
->want_fptr
)
4045 if (r_type
== R_IA64_FPTR64I
)
4047 /* We can't represent this without a dynamic symbol.
4048 Adjust the relocation to be against an output
4049 section symbol, which are always present in the
4050 dynamic symbol table. */
4051 /* ??? People shouldn't be doing non-pic code in
4052 shared libraries. Hork. */
4053 (*_bfd_error_handler
)
4054 (_("%s: linking non-pic code in a position independent executable"),
4055 bfd_archive_filename (input_bfd
));
4061 dyn_r_type
= r_type
+ R_IA64_REL64LSB
- R_IA64_FPTR64LSB
;
4065 if (h
->dynindx
!= -1)
4066 dynindx
= h
->dynindx
;
4068 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4069 (info
, h
->root
.u
.def
.section
->owner
,
4070 global_sym_index (h
)));
4075 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4076 (info
, input_bfd
, (long) r_symndx
));
4080 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4081 srel
, rel
->r_offset
, dyn_r_type
,
4085 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4088 case R_IA64_LTOFF_FPTR22
:
4089 case R_IA64_LTOFF_FPTR64I
:
4090 case R_IA64_LTOFF_FPTR32MSB
:
4091 case R_IA64_LTOFF_FPTR32LSB
:
4092 case R_IA64_LTOFF_FPTR64MSB
:
4093 case R_IA64_LTOFF_FPTR64LSB
:
4097 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4098 if (dyn_i
->want_fptr
)
4100 BFD_ASSERT (h
== NULL
|| h
->dynindx
== -1)
4101 if (!undef_weak_ref
)
4102 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4107 /* Otherwise, we expect the dynamic linker to create
4111 if (h
->dynindx
!= -1)
4112 dynindx
= h
->dynindx
;
4114 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4115 (info
, h
->root
.u
.def
.section
->owner
,
4116 global_sym_index (h
)));
4119 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4120 (info
, input_bfd
, (long) r_symndx
));
4124 value
= set_got_entry (output_bfd
, info
, dyn_i
, dynindx
,
4125 rel
->r_addend
, value
, R_IA64_FPTR64LSB
);
4127 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4131 case R_IA64_PCREL32MSB
:
4132 case R_IA64_PCREL32LSB
:
4133 case R_IA64_PCREL64MSB
:
4134 case R_IA64_PCREL64LSB
:
4135 /* Install a dynamic relocation for this reloc. */
4136 if (dynamic_symbol_p
&& r_symndx
!= 0)
4138 BFD_ASSERT (srel
!= NULL
);
4140 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4141 srel
, rel
->r_offset
, r_type
,
4142 h
->dynindx
, rel
->r_addend
);
4146 case R_IA64_PCREL21B
:
4147 case R_IA64_PCREL60B
:
4148 /* We should have created a PLT entry for any dynamic symbol. */
4151 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4153 if (dyn_i
&& dyn_i
->want_plt2
)
4155 /* Should have caught this earlier. */
4156 BFD_ASSERT (rel
->r_addend
== 0);
4158 value
= (ia64_info
->plt_sec
->output_section
->vma
4159 + ia64_info
->plt_sec
->output_offset
4160 + dyn_i
->plt2_offset
);
4164 /* Since there's no PLT entry, Validate that this is
4166 BFD_ASSERT (undef_weak_ref
|| sym_sec
->output_section
!= NULL
);
4168 /* If the symbol is undef_weak, we shouldn't be trying
4169 to call it. There's every chance that we'd wind up
4170 with an out-of-range fixup here. Don't bother setting
4171 any value at all. */
4177 case R_IA64_PCREL21BI
:
4178 case R_IA64_PCREL21F
:
4179 case R_IA64_PCREL21M
:
4180 case R_IA64_PCREL22
:
4181 case R_IA64_PCREL64I
:
4182 /* The PCREL21BI reloc is specifically not intended for use with
4183 dynamic relocs. PCREL21F and PCREL21M are used for speculation
4184 fixup code, and thus probably ought not be dynamic. The
4185 PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4186 if (dynamic_symbol_p
)
4190 if (r_type
== R_IA64_PCREL21BI
)
4191 msg
= _("%s: @internal branch to dynamic symbol %s");
4192 else if (r_type
== R_IA64_PCREL21F
|| r_type
== R_IA64_PCREL21M
)
4193 msg
= _("%s: speculation fixup to dynamic symbol %s");
4195 msg
= _("%s: @pcrel relocation against dynamic symbol %s");
4196 (*_bfd_error_handler
) (msg
, bfd_archive_filename (input_bfd
),
4197 h
->root
.root
.string
);
4204 /* Make pc-relative. */
4205 value
-= (input_section
->output_section
->vma
4206 + input_section
->output_offset
4207 + rel
->r_offset
) & ~ (bfd_vma
) 0x3;
4208 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4211 case R_IA64_SEGREL32MSB
:
4212 case R_IA64_SEGREL32LSB
:
4213 case R_IA64_SEGREL64MSB
:
4214 case R_IA64_SEGREL64LSB
:
4217 /* If the input section was discarded from the output, then
4223 struct elf_segment_map
*m
;
4224 Elf_Internal_Phdr
*p
;
4226 /* Find the segment that contains the output_section. */
4227 for (m
= elf_tdata (output_bfd
)->segment_map
,
4228 p
= elf_tdata (output_bfd
)->phdr
;
4233 for (i
= m
->count
- 1; i
>= 0; i
--)
4234 if (m
->sections
[i
] == input_section
->output_section
)
4242 r
= bfd_reloc_notsupported
;
4246 /* The VMA of the segment is the vaddr of the associated
4248 if (value
> p
->p_vaddr
)
4249 value
-= p
->p_vaddr
;
4252 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
,
4258 case R_IA64_SECREL32MSB
:
4259 case R_IA64_SECREL32LSB
:
4260 case R_IA64_SECREL64MSB
:
4261 case R_IA64_SECREL64LSB
:
4262 /* Make output-section relative. */
4263 if (value
> input_section
->output_section
->vma
)
4264 value
-= input_section
->output_section
->vma
;
4267 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4270 case R_IA64_IPLTMSB
:
4271 case R_IA64_IPLTLSB
:
4272 /* Install a dynamic relocation for this reloc. */
4273 if ((dynamic_symbol_p
|| info
->shared
)
4274 && (input_section
->flags
& SEC_ALLOC
) != 0)
4276 BFD_ASSERT (srel
!= NULL
);
4278 /* If we don't need dynamic symbol lookup, install two
4279 RELATIVE relocations. */
4280 if (!dynamic_symbol_p
)
4282 unsigned int dyn_r_type
;
4284 if (r_type
== R_IA64_IPLTMSB
)
4285 dyn_r_type
= R_IA64_REL64MSB
;
4287 dyn_r_type
= R_IA64_REL64LSB
;
4289 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4291 srel
, rel
->r_offset
,
4292 dyn_r_type
, 0, value
);
4293 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4295 srel
, rel
->r_offset
+ 8,
4296 dyn_r_type
, 0, gp_val
);
4299 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4300 srel
, rel
->r_offset
, r_type
,
4301 h
->dynindx
, rel
->r_addend
);
4304 if (r_type
== R_IA64_IPLTMSB
)
4305 r_type
= R_IA64_DIR64MSB
;
4307 r_type
= R_IA64_DIR64LSB
;
4308 elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4309 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
+ 8, gp_val
,
4313 case R_IA64_TPREL14
:
4314 case R_IA64_TPREL22
:
4315 case R_IA64_TPREL64I
:
4316 value
-= elfNN_ia64_tprel_base (info
);
4317 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4320 case R_IA64_DTPREL14
:
4321 case R_IA64_DTPREL22
:
4322 case R_IA64_DTPREL64I
:
4323 case R_IA64_DTPREL64LSB
:
4324 case R_IA64_DTPREL64MSB
:
4325 value
-= elfNN_ia64_dtprel_base (info
);
4326 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4329 case R_IA64_LTOFF_TPREL22
:
4330 case R_IA64_LTOFF_DTPMOD22
:
4331 case R_IA64_LTOFF_DTPREL22
:
4334 long dynindx
= h
? h
->dynindx
: -1;
4335 bfd_vma r_addend
= rel
->r_addend
;
4340 case R_IA64_LTOFF_TPREL22
:
4341 if (!dynamic_symbol_p
)
4344 value
-= elfNN_ia64_tprel_base (info
);
4347 r_addend
+= value
- elfNN_ia64_dtprel_base (info
);
4351 got_r_type
= R_IA64_TPREL64LSB
;
4353 case R_IA64_LTOFF_DTPMOD22
:
4354 if (!dynamic_symbol_p
&& !info
->shared
)
4356 got_r_type
= R_IA64_DTPMOD64LSB
;
4358 case R_IA64_LTOFF_DTPREL22
:
4359 if (!dynamic_symbol_p
)
4360 value
-= elfNN_ia64_dtprel_base (info
);
4361 got_r_type
= R_IA64_DTPREL64LSB
;
4364 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4365 value
= set_got_entry (input_bfd
, info
, dyn_i
, dynindx
, r_addend
,
4368 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
,
4374 r
= bfd_reloc_notsupported
;
4383 case bfd_reloc_undefined
:
4384 /* This can happen for global table relative relocs if
4385 __gp is undefined. This is a panic situation so we
4386 don't try to continue. */
4387 (*info
->callbacks
->undefined_symbol
)
4388 (info
, "__gp", input_bfd
, input_section
, rel
->r_offset
, 1);
4391 case bfd_reloc_notsupported
:
4396 name
= h
->root
.root
.string
;
4399 name
= bfd_elf_string_from_elf_section (input_bfd
,
4400 symtab_hdr
->sh_link
,
4405 name
= bfd_section_name (input_bfd
, input_section
);
4407 if (!(*info
->callbacks
->warning
) (info
, _("unsupported reloc"),
4409 input_section
, rel
->r_offset
))
4415 case bfd_reloc_dangerous
:
4416 case bfd_reloc_outofrange
:
4417 case bfd_reloc_overflow
:
4423 name
= h
->root
.root
.string
;
4426 name
= bfd_elf_string_from_elf_section (input_bfd
,
4427 symtab_hdr
->sh_link
,
4432 name
= bfd_section_name (input_bfd
, input_section
);
4434 if (!(*info
->callbacks
->reloc_overflow
) (info
, name
,
4451 elfNN_ia64_finish_dynamic_symbol (output_bfd
, info
, h
, sym
)
4453 struct bfd_link_info
*info
;
4454 struct elf_link_hash_entry
*h
;
4455 Elf_Internal_Sym
*sym
;
4457 struct elfNN_ia64_link_hash_table
*ia64_info
;
4458 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
4460 ia64_info
= elfNN_ia64_hash_table (info
);
4461 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4463 /* Fill in the PLT data, if required. */
4464 if (dyn_i
&& dyn_i
->want_plt
)
4466 Elf_Internal_Rela outrel
;
4469 bfd_vma plt_addr
, pltoff_addr
, gp_val
, index
;
4471 gp_val
= _bfd_get_gp_value (output_bfd
);
4473 /* Initialize the minimal PLT entry. */
4475 index
= (dyn_i
->plt_offset
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
4476 plt_sec
= ia64_info
->plt_sec
;
4477 loc
= plt_sec
->contents
+ dyn_i
->plt_offset
;
4479 memcpy (loc
, plt_min_entry
, PLT_MIN_ENTRY_SIZE
);
4480 elfNN_ia64_install_value (output_bfd
, loc
, index
, R_IA64_IMM22
);
4481 elfNN_ia64_install_value (output_bfd
, loc
+2, -dyn_i
->plt_offset
,
4484 plt_addr
= (plt_sec
->output_section
->vma
4485 + plt_sec
->output_offset
4486 + dyn_i
->plt_offset
);
4487 pltoff_addr
= set_pltoff_entry (output_bfd
, info
, dyn_i
, plt_addr
, TRUE
);
4489 /* Initialize the FULL PLT entry, if needed. */
4490 if (dyn_i
->want_plt2
)
4492 loc
= plt_sec
->contents
+ dyn_i
->plt2_offset
;
4494 memcpy (loc
, plt_full_entry
, PLT_FULL_ENTRY_SIZE
);
4495 elfNN_ia64_install_value (output_bfd
, loc
, pltoff_addr
- gp_val
,
4498 /* Mark the symbol as undefined, rather than as defined in the
4499 plt section. Leave the value alone. */
4500 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4501 first place. But perhaps elflink.h did some for us. */
4502 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
4503 sym
->st_shndx
= SHN_UNDEF
;
4506 /* Create the dynamic relocation. */
4507 outrel
.r_offset
= pltoff_addr
;
4508 if (bfd_little_endian (output_bfd
))
4509 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTLSB
);
4511 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTMSB
);
4512 outrel
.r_addend
= 0;
4514 /* This is fun. In the .IA_64.pltoff section, we've got entries
4515 that correspond both to real PLT entries, and those that
4516 happened to resolve to local symbols but need to be created
4517 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4518 relocations for the real PLT should come at the end of the
4519 section, so that they can be indexed by plt entry at runtime.
4521 We emitted all of the relocations for the non-PLT @pltoff
4522 entries during relocate_section. So we can consider the
4523 existing sec->reloc_count to be the base of the array of
4526 loc
= ia64_info
->rel_pltoff_sec
->contents
;
4527 loc
+= ((ia64_info
->rel_pltoff_sec
->reloc_count
+ index
)
4528 * sizeof (ElfNN_External_Rela
));
4529 bfd_elfNN_swap_reloca_out (output_bfd
, &outrel
, loc
);
4532 /* Mark some specially defined symbols as absolute. */
4533 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
4534 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0
4535 || strcmp (h
->root
.root
.string
, "_PROCEDURE_LINKAGE_TABLE_") == 0)
4536 sym
->st_shndx
= SHN_ABS
;
4542 elfNN_ia64_finish_dynamic_sections (abfd
, info
)
4544 struct bfd_link_info
*info
;
4546 struct elfNN_ia64_link_hash_table
*ia64_info
;
4549 ia64_info
= elfNN_ia64_hash_table (info
);
4550 dynobj
= ia64_info
->root
.dynobj
;
4552 if (elf_hash_table (info
)->dynamic_sections_created
)
4554 ElfNN_External_Dyn
*dyncon
, *dynconend
;
4555 asection
*sdyn
, *sgotplt
;
4558 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
4559 sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
4560 BFD_ASSERT (sdyn
!= NULL
);
4561 dyncon
= (ElfNN_External_Dyn
*) sdyn
->contents
;
4562 dynconend
= (ElfNN_External_Dyn
*) (sdyn
->contents
+ sdyn
->_raw_size
);
4564 gp_val
= _bfd_get_gp_value (abfd
);
4566 for (; dyncon
< dynconend
; dyncon
++)
4568 Elf_Internal_Dyn dyn
;
4570 bfd_elfNN_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4575 dyn
.d_un
.d_ptr
= gp_val
;
4579 dyn
.d_un
.d_val
= (ia64_info
->minplt_entries
4580 * sizeof (ElfNN_External_Rela
));
4584 /* See the comment above in finish_dynamic_symbol. */
4585 dyn
.d_un
.d_ptr
= (ia64_info
->rel_pltoff_sec
->output_section
->vma
4586 + ia64_info
->rel_pltoff_sec
->output_offset
4587 + (ia64_info
->rel_pltoff_sec
->reloc_count
4588 * sizeof (ElfNN_External_Rela
)));
4591 case DT_IA_64_PLT_RESERVE
:
4592 dyn
.d_un
.d_ptr
= (sgotplt
->output_section
->vma
4593 + sgotplt
->output_offset
);
4597 /* Do not have RELASZ include JMPREL. This makes things
4598 easier on ld.so. This is not what the rest of BFD set up. */
4599 dyn
.d_un
.d_val
-= (ia64_info
->minplt_entries
4600 * sizeof (ElfNN_External_Rela
));
4604 bfd_elfNN_swap_dyn_out (abfd
, &dyn
, dyncon
);
4607 /* Initialize the PLT0 entry. */
4608 if (ia64_info
->plt_sec
)
4610 bfd_byte
*loc
= ia64_info
->plt_sec
->contents
;
4613 memcpy (loc
, plt_header
, PLT_HEADER_SIZE
);
4615 pltres
= (sgotplt
->output_section
->vma
4616 + sgotplt
->output_offset
4619 elfNN_ia64_install_value (abfd
, loc
+1, pltres
, R_IA64_GPREL22
);
4626 /* ELF file flag handling: */
4628 /* Function to keep IA-64 specific file flags. */
4630 elfNN_ia64_set_private_flags (abfd
, flags
)
4634 BFD_ASSERT (!elf_flags_init (abfd
)
4635 || elf_elfheader (abfd
)->e_flags
== flags
);
4637 elf_elfheader (abfd
)->e_flags
= flags
;
4638 elf_flags_init (abfd
) = TRUE
;
4642 /* Merge backend specific data from an object file to the output
4643 object file when linking. */
4645 elfNN_ia64_merge_private_bfd_data (ibfd
, obfd
)
4650 bfd_boolean ok
= TRUE
;
4652 /* Don't even pretend to support mixed-format linking. */
4653 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
4654 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
4657 in_flags
= elf_elfheader (ibfd
)->e_flags
;
4658 out_flags
= elf_elfheader (obfd
)->e_flags
;
4660 if (! elf_flags_init (obfd
))
4662 elf_flags_init (obfd
) = TRUE
;
4663 elf_elfheader (obfd
)->e_flags
= in_flags
;
4665 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
4666 && bfd_get_arch_info (obfd
)->the_default
)
4668 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
4669 bfd_get_mach (ibfd
));
4675 /* Check flag compatibility. */
4676 if (in_flags
== out_flags
)
4679 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4680 if (!(in_flags
& EF_IA_64_REDUCEDFP
) && (out_flags
& EF_IA_64_REDUCEDFP
))
4681 elf_elfheader (obfd
)->e_flags
&= ~EF_IA_64_REDUCEDFP
;
4683 if ((in_flags
& EF_IA_64_TRAPNIL
) != (out_flags
& EF_IA_64_TRAPNIL
))
4685 (*_bfd_error_handler
)
4686 (_("%s: linking trap-on-NULL-dereference with non-trapping files"),
4687 bfd_archive_filename (ibfd
));
4689 bfd_set_error (bfd_error_bad_value
);
4692 if ((in_flags
& EF_IA_64_BE
) != (out_flags
& EF_IA_64_BE
))
4694 (*_bfd_error_handler
)
4695 (_("%s: linking big-endian files with little-endian files"),
4696 bfd_archive_filename (ibfd
));
4698 bfd_set_error (bfd_error_bad_value
);
4701 if ((in_flags
& EF_IA_64_ABI64
) != (out_flags
& EF_IA_64_ABI64
))
4703 (*_bfd_error_handler
)
4704 (_("%s: linking 64-bit files with 32-bit files"),
4705 bfd_archive_filename (ibfd
));
4707 bfd_set_error (bfd_error_bad_value
);
4710 if ((in_flags
& EF_IA_64_CONS_GP
) != (out_flags
& EF_IA_64_CONS_GP
))
4712 (*_bfd_error_handler
)
4713 (_("%s: linking constant-gp files with non-constant-gp files"),
4714 bfd_archive_filename (ibfd
));
4716 bfd_set_error (bfd_error_bad_value
);
4719 if ((in_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
)
4720 != (out_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
))
4722 (*_bfd_error_handler
)
4723 (_("%s: linking auto-pic files with non-auto-pic files"),
4724 bfd_archive_filename (ibfd
));
4726 bfd_set_error (bfd_error_bad_value
);
4734 elfNN_ia64_print_private_bfd_data (abfd
, ptr
)
4738 FILE *file
= (FILE *) ptr
;
4739 flagword flags
= elf_elfheader (abfd
)->e_flags
;
4741 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
4743 fprintf (file
, "private flags = %s%s%s%s%s%s%s%s\n",
4744 (flags
& EF_IA_64_TRAPNIL
) ? "TRAPNIL, " : "",
4745 (flags
& EF_IA_64_EXT
) ? "EXT, " : "",
4746 (flags
& EF_IA_64_BE
) ? "BE, " : "LE, ",
4747 (flags
& EF_IA_64_REDUCEDFP
) ? "REDUCEDFP, " : "",
4748 (flags
& EF_IA_64_CONS_GP
) ? "CONS_GP, " : "",
4749 (flags
& EF_IA_64_NOFUNCDESC_CONS_GP
) ? "NOFUNCDESC_CONS_GP, " : "",
4750 (flags
& EF_IA_64_ABSOLUTE
) ? "ABSOLUTE, " : "",
4751 (flags
& EF_IA_64_ABI64
) ? "ABI64" : "ABI32");
4753 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
4757 static enum elf_reloc_type_class
4758 elfNN_ia64_reloc_type_class (rela
)
4759 const Elf_Internal_Rela
*rela
;
4761 switch ((int) ELFNN_R_TYPE (rela
->r_info
))
4763 case R_IA64_REL32MSB
:
4764 case R_IA64_REL32LSB
:
4765 case R_IA64_REL64MSB
:
4766 case R_IA64_REL64LSB
:
4767 return reloc_class_relative
;
4768 case R_IA64_IPLTMSB
:
4769 case R_IA64_IPLTLSB
:
4770 return reloc_class_plt
;
4772 return reloc_class_copy
;
4774 return reloc_class_normal
;
4778 static struct bfd_elf_special_section
const elfNN_ia64_special_sections
[]=
4780 { ".sbss", 5, -1, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4781 { ".sdata", 6, -1, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4782 { NULL
, 0, 0, 0, 0 }
4786 elfNN_ia64_hpux_vec (const bfd_target
*vec
)
4788 extern const bfd_target bfd_elfNN_ia64_hpux_big_vec
;
4789 return (vec
== & bfd_elfNN_ia64_hpux_big_vec
);
4793 elfNN_hpux_post_process_headers (abfd
, info
)
4795 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
4797 Elf_Internal_Ehdr
*i_ehdrp
= elf_elfheader (abfd
);
4799 i_ehdrp
->e_ident
[EI_OSABI
] = ELFOSABI_HPUX
;
4800 i_ehdrp
->e_ident
[EI_ABIVERSION
] = 1;
4804 elfNN_hpux_backend_section_from_bfd_section (abfd
, sec
, retval
)
4805 bfd
*abfd ATTRIBUTE_UNUSED
;
4809 if (bfd_is_com_section (sec
))
4811 *retval
= SHN_IA_64_ANSI_COMMON
;
4818 elfNN_hpux_backend_symbol_processing (bfd
*abfd ATTRIBUTE_UNUSED
,
4821 elf_symbol_type
*elfsym
= (elf_symbol_type
*) asym
;;
4823 switch (elfsym
->internal_elf_sym
.st_shndx
)
4825 case SHN_IA_64_ANSI_COMMON
:
4826 asym
->section
= bfd_com_section_ptr
;
4827 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
4828 asym
->flags
&= ~BSF_GLOBAL
;
4834 #define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
4835 #define TARGET_LITTLE_NAME "elfNN-ia64-little"
4836 #define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec
4837 #define TARGET_BIG_NAME "elfNN-ia64-big"
4838 #define ELF_ARCH bfd_arch_ia64
4839 #define ELF_MACHINE_CODE EM_IA_64
4840 #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
4841 #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
4842 #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
4844 #define elf_backend_section_from_shdr \
4845 elfNN_ia64_section_from_shdr
4846 #define elf_backend_section_flags \
4847 elfNN_ia64_section_flags
4848 #define elf_backend_fake_sections \
4849 elfNN_ia64_fake_sections
4850 #define elf_backend_final_write_processing \
4851 elfNN_ia64_final_write_processing
4852 #define elf_backend_add_symbol_hook \
4853 elfNN_ia64_add_symbol_hook
4854 #define elf_backend_additional_program_headers \
4855 elfNN_ia64_additional_program_headers
4856 #define elf_backend_modify_segment_map \
4857 elfNN_ia64_modify_segment_map
4858 #define elf_info_to_howto \
4859 elfNN_ia64_info_to_howto
4861 #define bfd_elfNN_bfd_reloc_type_lookup \
4862 elfNN_ia64_reloc_type_lookup
4863 #define bfd_elfNN_bfd_is_local_label_name \
4864 elfNN_ia64_is_local_label_name
4865 #define bfd_elfNN_bfd_relax_section \
4866 elfNN_ia64_relax_section
4868 /* Stuff for the BFD linker: */
4869 #define bfd_elfNN_bfd_link_hash_table_create \
4870 elfNN_ia64_hash_table_create
4871 #define bfd_elfNN_bfd_link_hash_table_free \
4872 elfNN_ia64_hash_table_free
4873 #define elf_backend_create_dynamic_sections \
4874 elfNN_ia64_create_dynamic_sections
4875 #define elf_backend_check_relocs \
4876 elfNN_ia64_check_relocs
4877 #define elf_backend_adjust_dynamic_symbol \
4878 elfNN_ia64_adjust_dynamic_symbol
4879 #define elf_backend_size_dynamic_sections \
4880 elfNN_ia64_size_dynamic_sections
4881 #define elf_backend_relocate_section \
4882 elfNN_ia64_relocate_section
4883 #define elf_backend_finish_dynamic_symbol \
4884 elfNN_ia64_finish_dynamic_symbol
4885 #define elf_backend_finish_dynamic_sections \
4886 elfNN_ia64_finish_dynamic_sections
4887 #define bfd_elfNN_bfd_final_link \
4888 elfNN_ia64_final_link
4890 #define bfd_elfNN_bfd_merge_private_bfd_data \
4891 elfNN_ia64_merge_private_bfd_data
4892 #define bfd_elfNN_bfd_set_private_flags \
4893 elfNN_ia64_set_private_flags
4894 #define bfd_elfNN_bfd_print_private_bfd_data \
4895 elfNN_ia64_print_private_bfd_data
4897 #define elf_backend_plt_readonly 1
4898 #define elf_backend_want_plt_sym 0
4899 #define elf_backend_plt_alignment 5
4900 #define elf_backend_got_header_size 0
4901 #define elf_backend_want_got_plt 1
4902 #define elf_backend_may_use_rel_p 1
4903 #define elf_backend_may_use_rela_p 1
4904 #define elf_backend_default_use_rela_p 1
4905 #define elf_backend_want_dynbss 0
4906 #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
4907 #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
4908 #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
4909 #define elf_backend_rela_normal 1
4910 #define elf_backend_special_sections elfNN_ia64_special_sections
4912 #include "elfNN-target.h"
4914 /* HPUX-specific vectors. */
4916 #undef TARGET_LITTLE_SYM
4917 #undef TARGET_LITTLE_NAME
4918 #undef TARGET_BIG_SYM
4919 #define TARGET_BIG_SYM bfd_elfNN_ia64_hpux_big_vec
4920 #undef TARGET_BIG_NAME
4921 #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
4923 /* These are HP-UX specific functions. */
4925 #undef elf_backend_post_process_headers
4926 #define elf_backend_post_process_headers elfNN_hpux_post_process_headers
4928 #undef elf_backend_section_from_bfd_section
4929 #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
4931 #undef elf_backend_symbol_processing
4932 #define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
4934 #undef elf_backend_want_p_paddr_set_to_zero
4935 #define elf_backend_want_p_paddr_set_to_zero 1
4937 #undef ELF_MAXPAGESIZE
4938 #define ELF_MAXPAGESIZE 0x1000 /* 1K */
4941 #define elfNN_bed elfNN_ia64_hpux_bed
4943 #include "elfNN-target.h"
4945 #undef elf_backend_want_p_paddr_set_to_zero