1 /* IA-64 support for 64-bit ELF
2 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004
3 Free Software Foundation, Inc.
4 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
26 #include "opcode/ia64.h"
31 /* THE RULES for all the stuff the linker creates --
33 GOT Entries created in response to LTOFF or LTOFF_FPTR
34 relocations. Dynamic relocs created for dynamic
35 symbols in an application; REL relocs for locals
38 FPTR The canonical function descriptor. Created for local
39 symbols in applications. Descriptors for dynamic symbols
40 and local symbols in shared libraries are created by
41 ld.so. Thus there are no dynamic relocs against these
42 objects. The FPTR relocs for such _are_ passed through
43 to the dynamic relocation tables.
45 FULL_PLT Created for a PCREL21B relocation against a dynamic symbol.
46 Requires the creation of a PLTOFF entry. This does not
47 require any dynamic relocations.
49 PLTOFF Created by PLTOFF relocations. For local symbols, this
50 is an alternate function descriptor, and in shared libraries
51 requires two REL relocations. Note that this cannot be
52 transformed into an FPTR relocation, since it must be in
53 range of the GP. For dynamic symbols, this is a function
54 descriptor for a MIN_PLT entry, and requires one IPLT reloc.
56 MIN_PLT Created by PLTOFF entries against dynamic symbols. This
57 does not require dynamic relocations. */
59 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
61 typedef struct bfd_hash_entry
*(*new_hash_entry_func
)
62 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
64 /* In dynamically (linker-) created sections, we generally need to keep track
65 of the place a symbol or expression got allocated to. This is done via hash
66 tables that store entries of the following type. */
68 struct elfNN_ia64_dyn_sym_info
70 /* The addend for which this entry is relevant. */
73 /* Next addend in the list. */
74 struct elfNN_ia64_dyn_sym_info
*next
;
78 bfd_vma pltoff_offset
;
82 bfd_vma dtpmod_offset
;
83 bfd_vma dtprel_offset
;
85 /* The symbol table entry, if any, that this was derived from. */
86 struct elf_link_hash_entry
*h
;
88 /* Used to count non-got, non-plt relocations for delayed sizing
89 of relocation sections. */
90 struct elfNN_ia64_dyn_reloc_entry
92 struct elfNN_ia64_dyn_reloc_entry
*next
;
97 /* Is this reloc against readonly section? */
101 /* TRUE when the section contents have been updated. */
102 unsigned got_done
: 1;
103 unsigned fptr_done
: 1;
104 unsigned pltoff_done
: 1;
105 unsigned tprel_done
: 1;
106 unsigned dtpmod_done
: 1;
107 unsigned dtprel_done
: 1;
109 /* TRUE for the different kinds of linker data we want created. */
110 unsigned want_got
: 1;
111 unsigned want_gotx
: 1;
112 unsigned want_fptr
: 1;
113 unsigned want_ltoff_fptr
: 1;
114 unsigned want_plt
: 1;
115 unsigned want_plt2
: 1;
116 unsigned want_pltoff
: 1;
117 unsigned want_tprel
: 1;
118 unsigned want_dtpmod
: 1;
119 unsigned want_dtprel
: 1;
122 struct elfNN_ia64_local_hash_entry
126 struct elfNN_ia64_dyn_sym_info
*info
;
128 /* TRUE if this hash entry's addends was translated for
129 SHF_MERGE optimization. */
130 unsigned sec_merge_done
: 1;
133 struct elfNN_ia64_link_hash_entry
135 struct elf_link_hash_entry root
;
136 struct elfNN_ia64_dyn_sym_info
*info
;
139 struct elfNN_ia64_link_hash_table
141 /* The main hash table. */
142 struct elf_link_hash_table root
;
144 asection
*got_sec
; /* the linkage table section (or NULL) */
145 asection
*rel_got_sec
; /* dynamic relocation section for same */
146 asection
*fptr_sec
; /* function descriptor table (or NULL) */
147 asection
*rel_fptr_sec
; /* dynamic relocation section for same */
148 asection
*plt_sec
; /* the primary plt section (or NULL) */
149 asection
*pltoff_sec
; /* private descriptors for plt (or NULL) */
150 asection
*rel_pltoff_sec
; /* dynamic relocation section for same */
152 bfd_size_type minplt_entries
; /* number of minplt entries */
153 unsigned reltext
: 1; /* are there relocs against readonly sections? */
154 unsigned self_dtpmod_done
: 1;/* has self DTPMOD entry been finished? */
155 bfd_vma self_dtpmod_offset
; /* .got offset to self DTPMOD entry */
157 htab_t loc_hash_table
;
158 void *loc_hash_memory
;
161 struct elfNN_ia64_allocate_data
163 struct bfd_link_info
*info
;
167 #define elfNN_ia64_hash_table(p) \
168 ((struct elfNN_ia64_link_hash_table *) ((p)->hash))
170 static bfd_reloc_status_type elfNN_ia64_reloc
171 PARAMS ((bfd
*abfd
, arelent
*reloc
, asymbol
*sym
, PTR data
,
172 asection
*input_section
, bfd
*output_bfd
, char **error_message
));
173 static reloc_howto_type
* lookup_howto
174 PARAMS ((unsigned int rtype
));
175 static reloc_howto_type
*elfNN_ia64_reloc_type_lookup
176 PARAMS ((bfd
*abfd
, bfd_reloc_code_real_type bfd_code
));
177 static void elfNN_ia64_info_to_howto
178 PARAMS ((bfd
*abfd
, arelent
*bfd_reloc
, Elf_Internal_Rela
*elf_reloc
));
179 static bfd_boolean elfNN_ia64_relax_section
180 PARAMS((bfd
*abfd
, asection
*sec
, struct bfd_link_info
*link_info
,
181 bfd_boolean
*again
));
182 static void elfNN_ia64_relax_ldxmov
183 PARAMS((bfd
*abfd
, bfd_byte
*contents
, bfd_vma off
));
184 static bfd_boolean is_unwind_section_name
185 PARAMS ((bfd
*abfd
, const char *));
186 static bfd_boolean elfNN_ia64_section_from_shdr
187 PARAMS ((bfd
*, Elf_Internal_Shdr
*, const char *));
188 static bfd_boolean elfNN_ia64_section_flags
189 PARAMS ((flagword
*, Elf_Internal_Shdr
*));
190 static bfd_boolean elfNN_ia64_fake_sections
191 PARAMS ((bfd
*abfd
, Elf_Internal_Shdr
*hdr
, asection
*sec
));
192 static void elfNN_ia64_final_write_processing
193 PARAMS ((bfd
*abfd
, bfd_boolean linker
));
194 static bfd_boolean elfNN_ia64_add_symbol_hook
195 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, Elf_Internal_Sym
*sym
,
196 const char **namep
, flagword
*flagsp
, asection
**secp
,
198 static int elfNN_ia64_additional_program_headers
199 PARAMS ((bfd
*abfd
));
200 static bfd_boolean elfNN_ia64_modify_segment_map
201 PARAMS ((bfd
*, struct bfd_link_info
*));
202 static bfd_boolean elfNN_ia64_is_local_label_name
203 PARAMS ((bfd
*abfd
, const char *name
));
204 static bfd_boolean elfNN_ia64_dynamic_symbol_p
205 PARAMS ((struct elf_link_hash_entry
*h
, struct bfd_link_info
*info
, int));
206 static struct bfd_hash_entry
*elfNN_ia64_new_elf_hash_entry
207 PARAMS ((struct bfd_hash_entry
*entry
, struct bfd_hash_table
*table
,
208 const char *string
));
209 static void elfNN_ia64_hash_copy_indirect
210 PARAMS ((const struct elf_backend_data
*, struct elf_link_hash_entry
*,
211 struct elf_link_hash_entry
*));
212 static void elfNN_ia64_hash_hide_symbol
213 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*, bfd_boolean
));
214 static hashval_t elfNN_ia64_local_htab_hash
PARAMS ((const void *));
215 static int elfNN_ia64_local_htab_eq
PARAMS ((const void *ptr1
,
217 static struct bfd_link_hash_table
*elfNN_ia64_hash_table_create
218 PARAMS ((bfd
*abfd
));
219 static void elfNN_ia64_hash_table_free
220 PARAMS ((struct bfd_link_hash_table
*hash
));
221 static bfd_boolean elfNN_ia64_global_dyn_sym_thunk
222 PARAMS ((struct bfd_hash_entry
*, PTR
));
223 static int elfNN_ia64_local_dyn_sym_thunk
224 PARAMS ((void **, PTR
));
225 static void elfNN_ia64_dyn_sym_traverse
226 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
227 bfd_boolean (*func
) (struct elfNN_ia64_dyn_sym_info
*, PTR
),
229 static bfd_boolean elfNN_ia64_create_dynamic_sections
230 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
231 static struct elfNN_ia64_local_hash_entry
* get_local_sym_hash
232 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
233 bfd
*abfd
, const Elf_Internal_Rela
*rel
, bfd_boolean create
));
234 static struct elfNN_ia64_dyn_sym_info
* get_dyn_sym_info
235 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
236 struct elf_link_hash_entry
*h
,
237 bfd
*abfd
, const Elf_Internal_Rela
*rel
, bfd_boolean create
));
238 static asection
*get_got
239 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
240 struct elfNN_ia64_link_hash_table
*ia64_info
));
241 static asection
*get_fptr
242 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
243 struct elfNN_ia64_link_hash_table
*ia64_info
));
244 static asection
*get_pltoff
245 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
246 struct elfNN_ia64_link_hash_table
*ia64_info
));
247 static asection
*get_reloc_section
248 PARAMS ((bfd
*abfd
, struct elfNN_ia64_link_hash_table
*ia64_info
,
249 asection
*sec
, bfd_boolean create
));
250 static bfd_boolean elfNN_ia64_check_relocs
251 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
252 const Elf_Internal_Rela
*relocs
));
253 static bfd_boolean elfNN_ia64_adjust_dynamic_symbol
254 PARAMS ((struct bfd_link_info
*info
, struct elf_link_hash_entry
*h
));
255 static long global_sym_index
256 PARAMS ((struct elf_link_hash_entry
*h
));
257 static bfd_boolean allocate_fptr
258 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
259 static bfd_boolean allocate_global_data_got
260 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
261 static bfd_boolean allocate_global_fptr_got
262 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
263 static bfd_boolean allocate_local_got
264 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
265 static bfd_boolean allocate_pltoff_entries
266 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
267 static bfd_boolean allocate_plt_entries
268 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
269 static bfd_boolean allocate_plt2_entries
270 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
271 static bfd_boolean allocate_dynrel_entries
272 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
273 static bfd_boolean elfNN_ia64_size_dynamic_sections
274 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
));
275 static bfd_reloc_status_type elfNN_ia64_install_value
276 PARAMS ((bfd
*abfd
, bfd_byte
*hit_addr
, bfd_vma val
, unsigned int r_type
));
277 static void elfNN_ia64_install_dyn_reloc
278 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
279 asection
*srel
, bfd_vma offset
, unsigned int type
,
280 long dynindx
, bfd_vma addend
));
281 static bfd_vma set_got_entry
282 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
283 struct elfNN_ia64_dyn_sym_info
*dyn_i
, long dynindx
,
284 bfd_vma addend
, bfd_vma value
, unsigned int dyn_r_type
));
285 static bfd_vma set_fptr_entry
286 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
287 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
289 static bfd_vma set_pltoff_entry
290 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
291 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
292 bfd_vma value
, bfd_boolean
));
293 static bfd_vma elfNN_ia64_tprel_base
294 PARAMS ((struct bfd_link_info
*info
));
295 static bfd_vma elfNN_ia64_dtprel_base
296 PARAMS ((struct bfd_link_info
*info
));
297 static int elfNN_ia64_unwind_entry_compare
298 PARAMS ((const PTR
, const PTR
));
299 static bfd_boolean elfNN_ia64_choose_gp
300 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
301 static bfd_boolean elfNN_ia64_final_link
302 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
303 static bfd_boolean elfNN_ia64_relocate_section
304 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
, bfd
*input_bfd
,
305 asection
*input_section
, bfd_byte
*contents
,
306 Elf_Internal_Rela
*relocs
, Elf_Internal_Sym
*local_syms
,
307 asection
**local_sections
));
308 static bfd_boolean elfNN_ia64_finish_dynamic_symbol
309 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
,
310 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*sym
));
311 static bfd_boolean elfNN_ia64_finish_dynamic_sections
312 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
313 static bfd_boolean elfNN_ia64_set_private_flags
314 PARAMS ((bfd
*abfd
, flagword flags
));
315 static bfd_boolean elfNN_ia64_merge_private_bfd_data
316 PARAMS ((bfd
*ibfd
, bfd
*obfd
));
317 static bfd_boolean elfNN_ia64_print_private_bfd_data
318 PARAMS ((bfd
*abfd
, PTR ptr
));
319 static enum elf_reloc_type_class elfNN_ia64_reloc_type_class
320 PARAMS ((const Elf_Internal_Rela
*));
321 static bfd_boolean elfNN_ia64_hpux_vec
322 PARAMS ((const bfd_target
*vec
));
323 static void elfNN_hpux_post_process_headers
324 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
325 bfd_boolean elfNN_hpux_backend_section_from_bfd_section
326 PARAMS ((bfd
*abfd
, asection
*sec
, int *retval
));
328 /* ia64-specific relocation. */
330 /* Perform a relocation. Not much to do here as all the hard work is
331 done in elfNN_ia64_final_link_relocate. */
332 static bfd_reloc_status_type
333 elfNN_ia64_reloc (abfd
, reloc
, sym
, data
, input_section
,
334 output_bfd
, error_message
)
335 bfd
*abfd ATTRIBUTE_UNUSED
;
337 asymbol
*sym ATTRIBUTE_UNUSED
;
338 PTR data ATTRIBUTE_UNUSED
;
339 asection
*input_section
;
341 char **error_message
;
345 reloc
->address
+= input_section
->output_offset
;
349 if (input_section
->flags
& SEC_DEBUGGING
)
350 return bfd_reloc_continue
;
352 *error_message
= "Unsupported call to elfNN_ia64_reloc";
353 return bfd_reloc_notsupported
;
356 #define IA64_HOWTO(TYPE, NAME, SIZE, PCREL, IN) \
357 HOWTO (TYPE, 0, SIZE, 0, PCREL, 0, complain_overflow_signed, \
358 elfNN_ia64_reloc, NAME, FALSE, 0, -1, IN)
360 /* This table has to be sorted according to increasing number of the
362 static reloc_howto_type ia64_howto_table
[] =
364 IA64_HOWTO (R_IA64_NONE
, "NONE", 0, FALSE
, TRUE
),
366 IA64_HOWTO (R_IA64_IMM14
, "IMM14", 0, FALSE
, TRUE
),
367 IA64_HOWTO (R_IA64_IMM22
, "IMM22", 0, FALSE
, TRUE
),
368 IA64_HOWTO (R_IA64_IMM64
, "IMM64", 0, FALSE
, TRUE
),
369 IA64_HOWTO (R_IA64_DIR32MSB
, "DIR32MSB", 2, FALSE
, TRUE
),
370 IA64_HOWTO (R_IA64_DIR32LSB
, "DIR32LSB", 2, FALSE
, TRUE
),
371 IA64_HOWTO (R_IA64_DIR64MSB
, "DIR64MSB", 4, FALSE
, TRUE
),
372 IA64_HOWTO (R_IA64_DIR64LSB
, "DIR64LSB", 4, FALSE
, TRUE
),
374 IA64_HOWTO (R_IA64_GPREL22
, "GPREL22", 0, FALSE
, TRUE
),
375 IA64_HOWTO (R_IA64_GPREL64I
, "GPREL64I", 0, FALSE
, TRUE
),
376 IA64_HOWTO (R_IA64_GPREL32MSB
, "GPREL32MSB", 2, FALSE
, TRUE
),
377 IA64_HOWTO (R_IA64_GPREL32LSB
, "GPREL32LSB", 2, FALSE
, TRUE
),
378 IA64_HOWTO (R_IA64_GPREL64MSB
, "GPREL64MSB", 4, FALSE
, TRUE
),
379 IA64_HOWTO (R_IA64_GPREL64LSB
, "GPREL64LSB", 4, FALSE
, TRUE
),
381 IA64_HOWTO (R_IA64_LTOFF22
, "LTOFF22", 0, FALSE
, TRUE
),
382 IA64_HOWTO (R_IA64_LTOFF64I
, "LTOFF64I", 0, FALSE
, TRUE
),
384 IA64_HOWTO (R_IA64_PLTOFF22
, "PLTOFF22", 0, FALSE
, TRUE
),
385 IA64_HOWTO (R_IA64_PLTOFF64I
, "PLTOFF64I", 0, FALSE
, TRUE
),
386 IA64_HOWTO (R_IA64_PLTOFF64MSB
, "PLTOFF64MSB", 4, FALSE
, TRUE
),
387 IA64_HOWTO (R_IA64_PLTOFF64LSB
, "PLTOFF64LSB", 4, FALSE
, TRUE
),
389 IA64_HOWTO (R_IA64_FPTR64I
, "FPTR64I", 0, FALSE
, TRUE
),
390 IA64_HOWTO (R_IA64_FPTR32MSB
, "FPTR32MSB", 2, FALSE
, TRUE
),
391 IA64_HOWTO (R_IA64_FPTR32LSB
, "FPTR32LSB", 2, FALSE
, TRUE
),
392 IA64_HOWTO (R_IA64_FPTR64MSB
, "FPTR64MSB", 4, FALSE
, TRUE
),
393 IA64_HOWTO (R_IA64_FPTR64LSB
, "FPTR64LSB", 4, FALSE
, TRUE
),
395 IA64_HOWTO (R_IA64_PCREL60B
, "PCREL60B", 0, TRUE
, TRUE
),
396 IA64_HOWTO (R_IA64_PCREL21B
, "PCREL21B", 0, TRUE
, TRUE
),
397 IA64_HOWTO (R_IA64_PCREL21M
, "PCREL21M", 0, TRUE
, TRUE
),
398 IA64_HOWTO (R_IA64_PCREL21F
, "PCREL21F", 0, TRUE
, TRUE
),
399 IA64_HOWTO (R_IA64_PCREL32MSB
, "PCREL32MSB", 2, TRUE
, TRUE
),
400 IA64_HOWTO (R_IA64_PCREL32LSB
, "PCREL32LSB", 2, TRUE
, TRUE
),
401 IA64_HOWTO (R_IA64_PCREL64MSB
, "PCREL64MSB", 4, TRUE
, TRUE
),
402 IA64_HOWTO (R_IA64_PCREL64LSB
, "PCREL64LSB", 4, TRUE
, TRUE
),
404 IA64_HOWTO (R_IA64_LTOFF_FPTR22
, "LTOFF_FPTR22", 0, FALSE
, TRUE
),
405 IA64_HOWTO (R_IA64_LTOFF_FPTR64I
, "LTOFF_FPTR64I", 0, FALSE
, TRUE
),
406 IA64_HOWTO (R_IA64_LTOFF_FPTR32MSB
, "LTOFF_FPTR32MSB", 2, FALSE
, TRUE
),
407 IA64_HOWTO (R_IA64_LTOFF_FPTR32LSB
, "LTOFF_FPTR32LSB", 2, FALSE
, TRUE
),
408 IA64_HOWTO (R_IA64_LTOFF_FPTR64MSB
, "LTOFF_FPTR64MSB", 4, FALSE
, TRUE
),
409 IA64_HOWTO (R_IA64_LTOFF_FPTR64LSB
, "LTOFF_FPTR64LSB", 4, FALSE
, TRUE
),
411 IA64_HOWTO (R_IA64_SEGREL32MSB
, "SEGREL32MSB", 2, FALSE
, TRUE
),
412 IA64_HOWTO (R_IA64_SEGREL32LSB
, "SEGREL32LSB", 2, FALSE
, TRUE
),
413 IA64_HOWTO (R_IA64_SEGREL64MSB
, "SEGREL64MSB", 4, FALSE
, TRUE
),
414 IA64_HOWTO (R_IA64_SEGREL64LSB
, "SEGREL64LSB", 4, FALSE
, TRUE
),
416 IA64_HOWTO (R_IA64_SECREL32MSB
, "SECREL32MSB", 2, FALSE
, TRUE
),
417 IA64_HOWTO (R_IA64_SECREL32LSB
, "SECREL32LSB", 2, FALSE
, TRUE
),
418 IA64_HOWTO (R_IA64_SECREL64MSB
, "SECREL64MSB", 4, FALSE
, TRUE
),
419 IA64_HOWTO (R_IA64_SECREL64LSB
, "SECREL64LSB", 4, FALSE
, TRUE
),
421 IA64_HOWTO (R_IA64_REL32MSB
, "REL32MSB", 2, FALSE
, TRUE
),
422 IA64_HOWTO (R_IA64_REL32LSB
, "REL32LSB", 2, FALSE
, TRUE
),
423 IA64_HOWTO (R_IA64_REL64MSB
, "REL64MSB", 4, FALSE
, TRUE
),
424 IA64_HOWTO (R_IA64_REL64LSB
, "REL64LSB", 4, FALSE
, TRUE
),
426 IA64_HOWTO (R_IA64_LTV32MSB
, "LTV32MSB", 2, FALSE
, TRUE
),
427 IA64_HOWTO (R_IA64_LTV32LSB
, "LTV32LSB", 2, FALSE
, TRUE
),
428 IA64_HOWTO (R_IA64_LTV64MSB
, "LTV64MSB", 4, FALSE
, TRUE
),
429 IA64_HOWTO (R_IA64_LTV64LSB
, "LTV64LSB", 4, FALSE
, TRUE
),
431 IA64_HOWTO (R_IA64_PCREL21BI
, "PCREL21BI", 0, TRUE
, TRUE
),
432 IA64_HOWTO (R_IA64_PCREL22
, "PCREL22", 0, TRUE
, TRUE
),
433 IA64_HOWTO (R_IA64_PCREL64I
, "PCREL64I", 0, TRUE
, TRUE
),
435 IA64_HOWTO (R_IA64_IPLTMSB
, "IPLTMSB", 4, FALSE
, TRUE
),
436 IA64_HOWTO (R_IA64_IPLTLSB
, "IPLTLSB", 4, FALSE
, TRUE
),
437 IA64_HOWTO (R_IA64_COPY
, "COPY", 4, FALSE
, TRUE
),
438 IA64_HOWTO (R_IA64_LTOFF22X
, "LTOFF22X", 0, FALSE
, TRUE
),
439 IA64_HOWTO (R_IA64_LDXMOV
, "LDXMOV", 0, FALSE
, TRUE
),
441 IA64_HOWTO (R_IA64_TPREL14
, "TPREL14", 0, FALSE
, FALSE
),
442 IA64_HOWTO (R_IA64_TPREL22
, "TPREL22", 0, FALSE
, FALSE
),
443 IA64_HOWTO (R_IA64_TPREL64I
, "TPREL64I", 0, FALSE
, FALSE
),
444 IA64_HOWTO (R_IA64_TPREL64MSB
, "TPREL64MSB", 4, FALSE
, FALSE
),
445 IA64_HOWTO (R_IA64_TPREL64LSB
, "TPREL64LSB", 4, FALSE
, FALSE
),
446 IA64_HOWTO (R_IA64_LTOFF_TPREL22
, "LTOFF_TPREL22", 0, FALSE
, FALSE
),
448 IA64_HOWTO (R_IA64_DTPMOD64MSB
, "TPREL64MSB", 4, FALSE
, FALSE
),
449 IA64_HOWTO (R_IA64_DTPMOD64LSB
, "TPREL64LSB", 4, FALSE
, FALSE
),
450 IA64_HOWTO (R_IA64_LTOFF_DTPMOD22
, "LTOFF_DTPMOD22", 0, FALSE
, FALSE
),
452 IA64_HOWTO (R_IA64_DTPREL14
, "DTPREL14", 0, FALSE
, FALSE
),
453 IA64_HOWTO (R_IA64_DTPREL22
, "DTPREL22", 0, FALSE
, FALSE
),
454 IA64_HOWTO (R_IA64_DTPREL64I
, "DTPREL64I", 0, FALSE
, FALSE
),
455 IA64_HOWTO (R_IA64_DTPREL32MSB
, "DTPREL32MSB", 2, FALSE
, FALSE
),
456 IA64_HOWTO (R_IA64_DTPREL32LSB
, "DTPREL32LSB", 2, FALSE
, FALSE
),
457 IA64_HOWTO (R_IA64_DTPREL64MSB
, "DTPREL64MSB", 4, FALSE
, FALSE
),
458 IA64_HOWTO (R_IA64_DTPREL64LSB
, "DTPREL64LSB", 4, FALSE
, FALSE
),
459 IA64_HOWTO (R_IA64_LTOFF_DTPREL22
, "LTOFF_DTPREL22", 0, FALSE
, FALSE
),
462 static unsigned char elf_code_to_howto_index
[R_IA64_MAX_RELOC_CODE
+ 1];
464 /* Given a BFD reloc type, return the matching HOWTO structure. */
466 static reloc_howto_type
*
470 static int inited
= 0;
477 memset (elf_code_to_howto_index
, 0xff, sizeof (elf_code_to_howto_index
));
478 for (i
= 0; i
< NELEMS (ia64_howto_table
); ++i
)
479 elf_code_to_howto_index
[ia64_howto_table
[i
].type
] = i
;
482 BFD_ASSERT (rtype
<= R_IA64_MAX_RELOC_CODE
);
483 i
= elf_code_to_howto_index
[rtype
];
484 if (i
>= NELEMS (ia64_howto_table
))
486 return ia64_howto_table
+ i
;
489 static reloc_howto_type
*
490 elfNN_ia64_reloc_type_lookup (abfd
, bfd_code
)
491 bfd
*abfd ATTRIBUTE_UNUSED
;
492 bfd_reloc_code_real_type bfd_code
;
498 case BFD_RELOC_NONE
: rtype
= R_IA64_NONE
; break;
500 case BFD_RELOC_IA64_IMM14
: rtype
= R_IA64_IMM14
; break;
501 case BFD_RELOC_IA64_IMM22
: rtype
= R_IA64_IMM22
; break;
502 case BFD_RELOC_IA64_IMM64
: rtype
= R_IA64_IMM64
; break;
504 case BFD_RELOC_IA64_DIR32MSB
: rtype
= R_IA64_DIR32MSB
; break;
505 case BFD_RELOC_IA64_DIR32LSB
: rtype
= R_IA64_DIR32LSB
; break;
506 case BFD_RELOC_IA64_DIR64MSB
: rtype
= R_IA64_DIR64MSB
; break;
507 case BFD_RELOC_IA64_DIR64LSB
: rtype
= R_IA64_DIR64LSB
; break;
509 case BFD_RELOC_IA64_GPREL22
: rtype
= R_IA64_GPREL22
; break;
510 case BFD_RELOC_IA64_GPREL64I
: rtype
= R_IA64_GPREL64I
; break;
511 case BFD_RELOC_IA64_GPREL32MSB
: rtype
= R_IA64_GPREL32MSB
; break;
512 case BFD_RELOC_IA64_GPREL32LSB
: rtype
= R_IA64_GPREL32LSB
; break;
513 case BFD_RELOC_IA64_GPREL64MSB
: rtype
= R_IA64_GPREL64MSB
; break;
514 case BFD_RELOC_IA64_GPREL64LSB
: rtype
= R_IA64_GPREL64LSB
; break;
516 case BFD_RELOC_IA64_LTOFF22
: rtype
= R_IA64_LTOFF22
; break;
517 case BFD_RELOC_IA64_LTOFF64I
: rtype
= R_IA64_LTOFF64I
; break;
519 case BFD_RELOC_IA64_PLTOFF22
: rtype
= R_IA64_PLTOFF22
; break;
520 case BFD_RELOC_IA64_PLTOFF64I
: rtype
= R_IA64_PLTOFF64I
; break;
521 case BFD_RELOC_IA64_PLTOFF64MSB
: rtype
= R_IA64_PLTOFF64MSB
; break;
522 case BFD_RELOC_IA64_PLTOFF64LSB
: rtype
= R_IA64_PLTOFF64LSB
; break;
523 case BFD_RELOC_IA64_FPTR64I
: rtype
= R_IA64_FPTR64I
; break;
524 case BFD_RELOC_IA64_FPTR32MSB
: rtype
= R_IA64_FPTR32MSB
; break;
525 case BFD_RELOC_IA64_FPTR32LSB
: rtype
= R_IA64_FPTR32LSB
; break;
526 case BFD_RELOC_IA64_FPTR64MSB
: rtype
= R_IA64_FPTR64MSB
; break;
527 case BFD_RELOC_IA64_FPTR64LSB
: rtype
= R_IA64_FPTR64LSB
; break;
529 case BFD_RELOC_IA64_PCREL21B
: rtype
= R_IA64_PCREL21B
; break;
530 case BFD_RELOC_IA64_PCREL21BI
: rtype
= R_IA64_PCREL21BI
; break;
531 case BFD_RELOC_IA64_PCREL21M
: rtype
= R_IA64_PCREL21M
; break;
532 case BFD_RELOC_IA64_PCREL21F
: rtype
= R_IA64_PCREL21F
; break;
533 case BFD_RELOC_IA64_PCREL22
: rtype
= R_IA64_PCREL22
; break;
534 case BFD_RELOC_IA64_PCREL60B
: rtype
= R_IA64_PCREL60B
; break;
535 case BFD_RELOC_IA64_PCREL64I
: rtype
= R_IA64_PCREL64I
; break;
536 case BFD_RELOC_IA64_PCREL32MSB
: rtype
= R_IA64_PCREL32MSB
; break;
537 case BFD_RELOC_IA64_PCREL32LSB
: rtype
= R_IA64_PCREL32LSB
; break;
538 case BFD_RELOC_IA64_PCREL64MSB
: rtype
= R_IA64_PCREL64MSB
; break;
539 case BFD_RELOC_IA64_PCREL64LSB
: rtype
= R_IA64_PCREL64LSB
; break;
541 case BFD_RELOC_IA64_LTOFF_FPTR22
: rtype
= R_IA64_LTOFF_FPTR22
; break;
542 case BFD_RELOC_IA64_LTOFF_FPTR64I
: rtype
= R_IA64_LTOFF_FPTR64I
; break;
543 case BFD_RELOC_IA64_LTOFF_FPTR32MSB
: rtype
= R_IA64_LTOFF_FPTR32MSB
; break;
544 case BFD_RELOC_IA64_LTOFF_FPTR32LSB
: rtype
= R_IA64_LTOFF_FPTR32LSB
; break;
545 case BFD_RELOC_IA64_LTOFF_FPTR64MSB
: rtype
= R_IA64_LTOFF_FPTR64MSB
; break;
546 case BFD_RELOC_IA64_LTOFF_FPTR64LSB
: rtype
= R_IA64_LTOFF_FPTR64LSB
; break;
548 case BFD_RELOC_IA64_SEGREL32MSB
: rtype
= R_IA64_SEGREL32MSB
; break;
549 case BFD_RELOC_IA64_SEGREL32LSB
: rtype
= R_IA64_SEGREL32LSB
; break;
550 case BFD_RELOC_IA64_SEGREL64MSB
: rtype
= R_IA64_SEGREL64MSB
; break;
551 case BFD_RELOC_IA64_SEGREL64LSB
: rtype
= R_IA64_SEGREL64LSB
; break;
553 case BFD_RELOC_IA64_SECREL32MSB
: rtype
= R_IA64_SECREL32MSB
; break;
554 case BFD_RELOC_IA64_SECREL32LSB
: rtype
= R_IA64_SECREL32LSB
; break;
555 case BFD_RELOC_IA64_SECREL64MSB
: rtype
= R_IA64_SECREL64MSB
; break;
556 case BFD_RELOC_IA64_SECREL64LSB
: rtype
= R_IA64_SECREL64LSB
; break;
558 case BFD_RELOC_IA64_REL32MSB
: rtype
= R_IA64_REL32MSB
; break;
559 case BFD_RELOC_IA64_REL32LSB
: rtype
= R_IA64_REL32LSB
; break;
560 case BFD_RELOC_IA64_REL64MSB
: rtype
= R_IA64_REL64MSB
; break;
561 case BFD_RELOC_IA64_REL64LSB
: rtype
= R_IA64_REL64LSB
; break;
563 case BFD_RELOC_IA64_LTV32MSB
: rtype
= R_IA64_LTV32MSB
; break;
564 case BFD_RELOC_IA64_LTV32LSB
: rtype
= R_IA64_LTV32LSB
; break;
565 case BFD_RELOC_IA64_LTV64MSB
: rtype
= R_IA64_LTV64MSB
; break;
566 case BFD_RELOC_IA64_LTV64LSB
: rtype
= R_IA64_LTV64LSB
; break;
568 case BFD_RELOC_IA64_IPLTMSB
: rtype
= R_IA64_IPLTMSB
; break;
569 case BFD_RELOC_IA64_IPLTLSB
: rtype
= R_IA64_IPLTLSB
; break;
570 case BFD_RELOC_IA64_COPY
: rtype
= R_IA64_COPY
; break;
571 case BFD_RELOC_IA64_LTOFF22X
: rtype
= R_IA64_LTOFF22X
; break;
572 case BFD_RELOC_IA64_LDXMOV
: rtype
= R_IA64_LDXMOV
; break;
574 case BFD_RELOC_IA64_TPREL14
: rtype
= R_IA64_TPREL14
; break;
575 case BFD_RELOC_IA64_TPREL22
: rtype
= R_IA64_TPREL22
; break;
576 case BFD_RELOC_IA64_TPREL64I
: rtype
= R_IA64_TPREL64I
; break;
577 case BFD_RELOC_IA64_TPREL64MSB
: rtype
= R_IA64_TPREL64MSB
; break;
578 case BFD_RELOC_IA64_TPREL64LSB
: rtype
= R_IA64_TPREL64LSB
; break;
579 case BFD_RELOC_IA64_LTOFF_TPREL22
: rtype
= R_IA64_LTOFF_TPREL22
; break;
581 case BFD_RELOC_IA64_DTPMOD64MSB
: rtype
= R_IA64_DTPMOD64MSB
; break;
582 case BFD_RELOC_IA64_DTPMOD64LSB
: rtype
= R_IA64_DTPMOD64LSB
; break;
583 case BFD_RELOC_IA64_LTOFF_DTPMOD22
: rtype
= R_IA64_LTOFF_DTPMOD22
; break;
585 case BFD_RELOC_IA64_DTPREL14
: rtype
= R_IA64_DTPREL14
; break;
586 case BFD_RELOC_IA64_DTPREL22
: rtype
= R_IA64_DTPREL22
; break;
587 case BFD_RELOC_IA64_DTPREL64I
: rtype
= R_IA64_DTPREL64I
; break;
588 case BFD_RELOC_IA64_DTPREL32MSB
: rtype
= R_IA64_DTPREL32MSB
; break;
589 case BFD_RELOC_IA64_DTPREL32LSB
: rtype
= R_IA64_DTPREL32LSB
; break;
590 case BFD_RELOC_IA64_DTPREL64MSB
: rtype
= R_IA64_DTPREL64MSB
; break;
591 case BFD_RELOC_IA64_DTPREL64LSB
: rtype
= R_IA64_DTPREL64LSB
; break;
592 case BFD_RELOC_IA64_LTOFF_DTPREL22
: rtype
= R_IA64_LTOFF_DTPREL22
; break;
596 return lookup_howto (rtype
);
599 /* Given a ELF reloc, return the matching HOWTO structure. */
602 elfNN_ia64_info_to_howto (abfd
, bfd_reloc
, elf_reloc
)
603 bfd
*abfd ATTRIBUTE_UNUSED
;
605 Elf_Internal_Rela
*elf_reloc
;
608 = lookup_howto ((unsigned int) ELFNN_R_TYPE (elf_reloc
->r_info
));
611 #define PLT_HEADER_SIZE (3 * 16)
612 #define PLT_MIN_ENTRY_SIZE (1 * 16)
613 #define PLT_FULL_ENTRY_SIZE (2 * 16)
614 #define PLT_RESERVED_WORDS 3
616 static const bfd_byte plt_header
[PLT_HEADER_SIZE
] =
618 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
619 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
620 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
621 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
622 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
623 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
624 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
625 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
626 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
629 static const bfd_byte plt_min_entry
[PLT_MIN_ENTRY_SIZE
] =
631 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
632 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
633 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
636 static const bfd_byte plt_full_entry
[PLT_FULL_ENTRY_SIZE
] =
638 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
639 0x00, 0x41, 0x3c, 0x70, 0x29, 0xc0, /* ld8.acq r16=[r15],8*/
640 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
641 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
642 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
643 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
646 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
648 static const bfd_byte oor_brl
[16] =
650 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
651 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
652 0x00, 0x00, 0x00, 0xc0
655 static const bfd_byte oor_ip
[48] =
657 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
658 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
659 0x01, 0x00, 0x00, 0x60,
660 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
661 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
662 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
663 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
664 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
665 0x60, 0x00, 0x80, 0x00 /* br b6;; */
668 static size_t oor_branch_size
= sizeof (oor_brl
);
671 bfd_elfNN_ia64_after_parse (int itanium
)
673 oor_branch_size
= itanium
? sizeof (oor_ip
) : sizeof (oor_brl
);
677 elfNN_ia64_relax_brl (bfd
*abfd
, bfd_byte
*contents
, bfd_vma off
)
681 bfd_vma t0
, t1
, i0
, i1
, i2
;
683 hit_addr
= (bfd_byte
*) (contents
+ off
);
684 hit_addr
-= (long) hit_addr
& 0x3;
685 t0
= bfd_get_64 (abfd
, hit_addr
);
686 t1
= bfd_get_64 (abfd
, hit_addr
+ 8);
688 /* Keep the instruction in slot 0. */
689 i0
= (t0
>> 5) & 0x1ffffffffffLL
;
690 /* Use nop.b for slot 1. */
692 /* For slot 2, turn brl into br by masking out bit 40. */
693 i2
= (t1
>> 23) & 0x0ffffffffffLL
;
695 /* Turn a MLX bundle into a MBB bundle with the same stop-bit
698 if ((t0
& 0x1fLL
) == 5)
700 t0
= (i1
<< 46) | (i0
<< 5) | template;
701 t1
= (i2
<< 23) | (i1
>> 18);
703 bfd_put_64 (abfd
, t0
, hit_addr
);
704 bfd_put_64 (abfd
, t1
, hit_addr
+ 8);
707 /* These functions do relaxation for IA-64 ELF. */
710 elfNN_ia64_relax_section (abfd
, sec
, link_info
, again
)
713 struct bfd_link_info
*link_info
;
718 struct one_fixup
*next
;
724 Elf_Internal_Shdr
*symtab_hdr
;
725 Elf_Internal_Rela
*internal_relocs
;
726 Elf_Internal_Rela
*irel
, *irelend
;
728 Elf_Internal_Sym
*isymbuf
= NULL
;
729 struct elfNN_ia64_link_hash_table
*ia64_info
;
730 struct one_fixup
*fixups
= NULL
;
731 bfd_boolean changed_contents
= FALSE
;
732 bfd_boolean changed_relocs
= FALSE
;
733 bfd_boolean changed_got
= FALSE
;
736 /* Assume we're not going to change any sizes, and we'll only need
740 /* Don't even try to relax for non-ELF outputs. */
741 if (!is_elf_hash_table (link_info
->hash
))
744 /* Nothing to do if there are no relocations or there is no need for
745 the relax finalize pass. */
746 if ((sec
->flags
& SEC_RELOC
) == 0
747 || sec
->reloc_count
== 0
748 || (!link_info
->need_relax_finalize
749 && sec
->need_finalize_relax
== 0))
752 /* If this is the first time we have been called for this section,
753 initialize the cooked size. */
754 if (sec
->_cooked_size
== 0)
755 sec
->_cooked_size
= sec
->_raw_size
;
757 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
759 /* Load the relocations for this section. */
760 internal_relocs
= (_bfd_elf_link_read_relocs
761 (abfd
, sec
, (PTR
) NULL
, (Elf_Internal_Rela
*) NULL
,
762 link_info
->keep_memory
));
763 if (internal_relocs
== NULL
)
766 ia64_info
= elfNN_ia64_hash_table (link_info
);
767 irelend
= internal_relocs
+ sec
->reloc_count
;
769 /* Get the section contents. */
770 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
771 contents
= elf_section_data (sec
)->this_hdr
.contents
;
774 contents
= (bfd_byte
*) bfd_malloc (sec
->_raw_size
);
775 if (contents
== NULL
)
778 if (! bfd_get_section_contents (abfd
, sec
, contents
,
779 (file_ptr
) 0, sec
->_raw_size
))
783 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
785 unsigned long r_type
= ELFNN_R_TYPE (irel
->r_info
);
786 bfd_vma symaddr
, reladdr
, trampoff
, toff
, roff
;
790 bfd_boolean is_branch
;
791 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
795 case R_IA64_PCREL21B
:
796 case R_IA64_PCREL21BI
:
797 case R_IA64_PCREL21M
:
798 case R_IA64_PCREL21F
:
799 /* In the finalize pass, all br relaxations are done. We can
801 if (!link_info
->need_relax_finalize
)
806 case R_IA64_PCREL60B
:
807 /* We can't optimize brl to br before the finalize pass since
808 br relaxations will increase the code size. Defer it to
809 the finalize pass. */
810 if (link_info
->need_relax_finalize
)
812 sec
->need_finalize_relax
= 1;
818 case R_IA64_LTOFF22X
:
820 /* We can't relax ldx/mov before the finalize pass since
821 br relaxations will increase the code size. Defer it to
822 the finalize pass. */
823 if (link_info
->need_relax_finalize
)
825 sec
->need_finalize_relax
= 1;
835 /* Get the value of the symbol referred to by the reloc. */
836 if (ELFNN_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
838 /* A local symbol. */
839 Elf_Internal_Sym
*isym
;
841 /* Read this BFD's local symbols. */
844 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
846 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
847 symtab_hdr
->sh_info
, 0,
853 isym
= isymbuf
+ ELFNN_R_SYM (irel
->r_info
);
854 if (isym
->st_shndx
== SHN_UNDEF
)
855 continue; /* We can't do anything with undefined symbols. */
856 else if (isym
->st_shndx
== SHN_ABS
)
857 tsec
= bfd_abs_section_ptr
;
858 else if (isym
->st_shndx
== SHN_COMMON
)
859 tsec
= bfd_com_section_ptr
;
860 else if (isym
->st_shndx
== SHN_IA_64_ANSI_COMMON
)
861 tsec
= bfd_com_section_ptr
;
863 tsec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
865 toff
= isym
->st_value
;
866 dyn_i
= get_dyn_sym_info (ia64_info
, NULL
, abfd
, irel
, FALSE
);
871 struct elf_link_hash_entry
*h
;
873 indx
= ELFNN_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
874 h
= elf_sym_hashes (abfd
)[indx
];
875 BFD_ASSERT (h
!= NULL
);
877 while (h
->root
.type
== bfd_link_hash_indirect
878 || h
->root
.type
== bfd_link_hash_warning
)
879 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
881 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, irel
, FALSE
);
883 /* For branches to dynamic symbols, we're interested instead
884 in a branch to the PLT entry. */
885 if (is_branch
&& dyn_i
&& dyn_i
->want_plt2
)
887 /* Internal branches shouldn't be sent to the PLT.
888 Leave this for now and we'll give an error later. */
889 if (r_type
!= R_IA64_PCREL21B
)
892 tsec
= ia64_info
->plt_sec
;
893 toff
= dyn_i
->plt2_offset
;
894 BFD_ASSERT (irel
->r_addend
== 0);
897 /* Can't do anything else with dynamic symbols. */
898 else if (elfNN_ia64_dynamic_symbol_p (h
, link_info
, r_type
))
903 /* We can't do anything with undefined symbols. */
904 if (h
->root
.type
== bfd_link_hash_undefined
905 || h
->root
.type
== bfd_link_hash_undefweak
)
908 tsec
= h
->root
.u
.def
.section
;
909 toff
= h
->root
.u
.def
.value
;
913 if (tsec
->sec_info_type
== ELF_INFO_TYPE_MERGE
)
914 toff
= _bfd_merged_section_offset (abfd
, &tsec
,
915 elf_section_data (tsec
)->sec_info
,
916 toff
+ irel
->r_addend
,
919 toff
+= irel
->r_addend
;
921 symaddr
= tsec
->output_section
->vma
+ tsec
->output_offset
+ toff
;
923 roff
= irel
->r_offset
;
927 bfd_signed_vma offset
;
929 reladdr
= (sec
->output_section
->vma
931 + roff
) & (bfd_vma
) -4;
933 /* If the branch is in range, no need to do anything. */
934 if ((bfd_signed_vma
) (symaddr
- reladdr
) >= -0x1000000
935 && (bfd_signed_vma
) (symaddr
- reladdr
) <= 0x0FFFFF0)
937 /* If the 60-bit branch is in 21-bit range, optimize it. */
938 if (r_type
== R_IA64_PCREL60B
)
940 elfNN_ia64_relax_brl (abfd
, contents
, roff
);
943 = ELF64_R_INFO (ELF64_R_SYM (irel
->r_info
),
946 /* If the original relocation offset points to slot
947 1, change it to slot 2. */
948 if ((irel
->r_offset
& 3) == 1)
954 else if (r_type
== R_IA64_PCREL60B
)
957 /* If the branch and target are in the same section, you've
958 got one honking big section and we can't help you. You'll
959 get an error message later. */
963 /* Look for an existing fixup to this address. */
964 for (f
= fixups
; f
; f
= f
->next
)
965 if (f
->tsec
== tsec
&& f
->toff
== toff
)
970 /* Two alternatives: If it's a branch to a PLT entry, we can
971 make a copy of the FULL_PLT entry. Otherwise, we'll have
972 to use a `brl' insn to get where we're going. */
976 if (tsec
== ia64_info
->plt_sec
)
977 size
= sizeof (plt_full_entry
);
979 size
= oor_branch_size
;
981 /* Resize the current section to make room for the new branch. */
982 trampoff
= (sec
->_cooked_size
+ 15) & (bfd_vma
) -16;
984 /* If trampoline is out of range, there is nothing we
986 offset
= trampoff
- (roff
& (bfd_vma
) -4);
987 if (offset
< -0x1000000 || offset
> 0x0FFFFF0)
990 amt
= trampoff
+ size
;
991 contents
= (bfd_byte
*) bfd_realloc (contents
, amt
);
992 if (contents
== NULL
)
994 sec
->_cooked_size
= amt
;
996 if (tsec
== ia64_info
->plt_sec
)
998 memcpy (contents
+ trampoff
, plt_full_entry
, size
);
1000 /* Hijack the old relocation for use as the PLTOFF reloc. */
1001 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1003 irel
->r_offset
= trampoff
;
1007 if (size
== sizeof (oor_ip
))
1009 memcpy (contents
+ trampoff
, oor_ip
, size
);
1010 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1012 irel
->r_addend
-= 16;
1013 irel
->r_offset
= trampoff
+ 2;
1017 memcpy (contents
+ trampoff
, oor_brl
, size
);
1018 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1020 irel
->r_offset
= trampoff
+ 2;
1025 /* Record the fixup so we don't do it again this section. */
1026 f
= (struct one_fixup
*)
1027 bfd_malloc ((bfd_size_type
) sizeof (*f
));
1031 f
->trampoff
= trampoff
;
1036 /* If trampoline is out of range, there is nothing we
1038 offset
= f
->trampoff
- (roff
& (bfd_vma
) -4);
1039 if (offset
< -0x1000000 || offset
> 0x0FFFFF0)
1042 /* Nop out the reloc, since we're finalizing things here. */
1043 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
1046 /* Fix up the existing branch to hit the trampoline. */
1047 if (elfNN_ia64_install_value (abfd
, contents
+ roff
, offset
,
1048 r_type
) != bfd_reloc_ok
)
1051 changed_contents
= TRUE
;
1052 changed_relocs
= TRUE
;
1059 bfd
*obfd
= sec
->output_section
->owner
;
1060 gp
= _bfd_get_gp_value (obfd
);
1063 if (!elfNN_ia64_choose_gp (obfd
, link_info
))
1065 gp
= _bfd_get_gp_value (obfd
);
1069 /* If the data is out of range, do nothing. */
1070 if ((bfd_signed_vma
) (symaddr
- gp
) >= 0x200000
1071 ||(bfd_signed_vma
) (symaddr
- gp
) < -0x200000)
1074 if (r_type
== R_IA64_LTOFF22X
)
1076 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1078 changed_relocs
= TRUE
;
1079 if (dyn_i
->want_gotx
)
1081 dyn_i
->want_gotx
= 0;
1082 changed_got
|= !dyn_i
->want_got
;
1087 elfNN_ia64_relax_ldxmov (abfd
, contents
, roff
);
1088 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
1089 changed_contents
= TRUE
;
1090 changed_relocs
= TRUE
;
1095 /* ??? If we created fixups, this may push the code segment large
1096 enough that the data segment moves, which will change the GP.
1097 Reset the GP so that we re-calculate next round. We need to
1098 do this at the _beginning_ of the next round; now will not do. */
1100 /* Clean up and go home. */
1103 struct one_fixup
*f
= fixups
;
1104 fixups
= fixups
->next
;
1109 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
1111 if (! link_info
->keep_memory
)
1115 /* Cache the symbols for elf_link_input_bfd. */
1116 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
1120 if (contents
!= NULL
1121 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
1123 if (!changed_contents
&& !link_info
->keep_memory
)
1127 /* Cache the section contents for elf_link_input_bfd. */
1128 elf_section_data (sec
)->this_hdr
.contents
= contents
;
1132 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
1134 if (!changed_relocs
)
1135 free (internal_relocs
);
1137 elf_section_data (sec
)->relocs
= internal_relocs
;
1142 struct elfNN_ia64_allocate_data data
;
1143 data
.info
= link_info
;
1145 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
1147 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
1148 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
1149 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
1150 ia64_info
->got_sec
->_raw_size
= data
.ofs
;
1151 ia64_info
->got_sec
->_cooked_size
= data
.ofs
;
1153 /* ??? Resize .rela.got too. */
1156 if (!link_info
->need_relax_finalize
)
1157 sec
->need_finalize_relax
= 0;
1159 *again
= changed_contents
|| changed_relocs
;
1163 if (isymbuf
!= NULL
&& (unsigned char *) isymbuf
!= symtab_hdr
->contents
)
1165 if (contents
!= NULL
1166 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
1168 if (internal_relocs
!= NULL
1169 && elf_section_data (sec
)->relocs
!= internal_relocs
)
1170 free (internal_relocs
);
1175 elfNN_ia64_relax_ldxmov (abfd
, contents
, off
)
1181 bfd_vma dword
, insn
;
1183 switch ((int)off
& 0x3)
1185 case 0: shift
= 5; break;
1186 case 1: shift
= 14; off
+= 3; break;
1187 case 2: shift
= 23; off
+= 6; break;
1192 dword
= bfd_get_64 (abfd
, contents
+ off
);
1193 insn
= (dword
>> shift
) & 0x1ffffffffffLL
;
1195 r1
= (insn
>> 6) & 127;
1196 r3
= (insn
>> 20) & 127;
1198 insn
= 0x8000000; /* nop */
1200 insn
= (insn
& 0x7f01fff) | 0x10800000000LL
; /* (qp) mov r1 = r3 */
1202 dword
&= ~(0x1ffffffffffLL
<< shift
);
1203 dword
|= (insn
<< shift
);
1204 bfd_put_64 (abfd
, dword
, contents
+ off
);
1207 /* Return TRUE if NAME is an unwind table section name. */
1209 static inline bfd_boolean
1210 is_unwind_section_name (abfd
, name
)
1214 size_t len1
, len2
, len3
;
1216 if (elfNN_ia64_hpux_vec (abfd
->xvec
)
1217 && !strcmp (name
, ELF_STRING_ia64_unwind_hdr
))
1220 len1
= sizeof (ELF_STRING_ia64_unwind
) - 1;
1221 len2
= sizeof (ELF_STRING_ia64_unwind_info
) - 1;
1222 len3
= sizeof (ELF_STRING_ia64_unwind_once
) - 1;
1223 return ((strncmp (name
, ELF_STRING_ia64_unwind
, len1
) == 0
1224 && strncmp (name
, ELF_STRING_ia64_unwind_info
, len2
) != 0)
1225 || strncmp (name
, ELF_STRING_ia64_unwind_once
, len3
) == 0);
1228 /* Handle an IA-64 specific section when reading an object file. This
1229 is called when elfcode.h finds a section with an unknown type. */
1232 elfNN_ia64_section_from_shdr (abfd
, hdr
, name
)
1234 Elf_Internal_Shdr
*hdr
;
1239 /* There ought to be a place to keep ELF backend specific flags, but
1240 at the moment there isn't one. We just keep track of the
1241 sections by their name, instead. Fortunately, the ABI gives
1242 suggested names for all the MIPS specific sections, so we will
1243 probably get away with this. */
1244 switch (hdr
->sh_type
)
1246 case SHT_IA_64_UNWIND
:
1247 case SHT_IA_64_HP_OPT_ANOT
:
1251 if (strcmp (name
, ELF_STRING_ia64_archext
) != 0)
1259 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
))
1261 newsect
= hdr
->bfd_section
;
1266 /* Convert IA-64 specific section flags to bfd internal section flags. */
1268 /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
1272 elfNN_ia64_section_flags (flags
, hdr
)
1274 Elf_Internal_Shdr
*hdr
;
1276 if (hdr
->sh_flags
& SHF_IA_64_SHORT
)
1277 *flags
|= SEC_SMALL_DATA
;
1282 /* Set the correct type for an IA-64 ELF section. We do this by the
1283 section name, which is a hack, but ought to work. */
1286 elfNN_ia64_fake_sections (abfd
, hdr
, sec
)
1287 bfd
*abfd ATTRIBUTE_UNUSED
;
1288 Elf_Internal_Shdr
*hdr
;
1291 register const char *name
;
1293 name
= bfd_get_section_name (abfd
, sec
);
1295 if (is_unwind_section_name (abfd
, name
))
1297 /* We don't have the sections numbered at this point, so sh_info
1298 is set later, in elfNN_ia64_final_write_processing. */
1299 hdr
->sh_type
= SHT_IA_64_UNWIND
;
1300 hdr
->sh_flags
|= SHF_LINK_ORDER
;
1302 else if (strcmp (name
, ELF_STRING_ia64_archext
) == 0)
1303 hdr
->sh_type
= SHT_IA_64_EXT
;
1304 else if (strcmp (name
, ".HP.opt_annot") == 0)
1305 hdr
->sh_type
= SHT_IA_64_HP_OPT_ANOT
;
1306 else if (strcmp (name
, ".reloc") == 0)
1307 /* This is an ugly, but unfortunately necessary hack that is
1308 needed when producing EFI binaries on IA-64. It tells
1309 elf.c:elf_fake_sections() not to consider ".reloc" as a section
1310 containing ELF relocation info. We need this hack in order to
1311 be able to generate ELF binaries that can be translated into
1312 EFI applications (which are essentially COFF objects). Those
1313 files contain a COFF ".reloc" section inside an ELFNN object,
1314 which would normally cause BFD to segfault because it would
1315 attempt to interpret this section as containing relocation
1316 entries for section "oc". With this hack enabled, ".reloc"
1317 will be treated as a normal data section, which will avoid the
1318 segfault. However, you won't be able to create an ELFNN binary
1319 with a section named "oc" that needs relocations, but that's
1320 the kind of ugly side-effects you get when detecting section
1321 types based on their names... In practice, this limitation is
1322 unlikely to bite. */
1323 hdr
->sh_type
= SHT_PROGBITS
;
1325 if (sec
->flags
& SEC_SMALL_DATA
)
1326 hdr
->sh_flags
|= SHF_IA_64_SHORT
;
1331 /* The final processing done just before writing out an IA-64 ELF
1335 elfNN_ia64_final_write_processing (abfd
, linker
)
1337 bfd_boolean linker ATTRIBUTE_UNUSED
;
1339 Elf_Internal_Shdr
*hdr
;
1341 asection
*text_sect
, *s
;
1344 for (s
= abfd
->sections
; s
; s
= s
->next
)
1346 hdr
= &elf_section_data (s
)->this_hdr
;
1347 switch (hdr
->sh_type
)
1349 case SHT_IA_64_UNWIND
:
1350 /* See comments in gas/config/tc-ia64.c:dot_endp on why we
1352 sname
= bfd_get_section_name (abfd
, s
);
1353 len
= sizeof (ELF_STRING_ia64_unwind
) - 1;
1354 if (sname
&& strncmp (sname
, ELF_STRING_ia64_unwind
, len
) == 0)
1358 if (sname
[0] == '\0')
1359 /* .IA_64.unwind -> .text */
1360 text_sect
= bfd_get_section_by_name (abfd
, ".text");
1362 /* .IA_64.unwindFOO -> FOO */
1363 text_sect
= bfd_get_section_by_name (abfd
, sname
);
1366 && (len
= sizeof (ELF_STRING_ia64_unwind_once
) - 1,
1367 strncmp (sname
, ELF_STRING_ia64_unwind_once
, len
)) == 0)
1369 /* .gnu.linkonce.ia64unw.FOO -> .gnu.linkonce.t.FOO */
1370 size_t len2
= sizeof (".gnu.linkonce.t.") - 1;
1371 char *once_name
= bfd_malloc (len2
+ strlen (sname
+ len
) + 1);
1373 if (once_name
!= NULL
)
1375 memcpy (once_name
, ".gnu.linkonce.t.", len2
);
1376 strcpy (once_name
+ len2
, sname
+ len
);
1377 text_sect
= bfd_get_section_by_name (abfd
, once_name
);
1381 /* Should only happen if we run out of memory, in
1382 which case we're probably toast anyway. Try to
1383 cope by finding the section the slow way. */
1384 for (text_sect
= abfd
->sections
;
1386 text_sect
= text_sect
->next
)
1388 if (strncmp (bfd_section_name (abfd
, text_sect
),
1389 ".gnu.linkonce.t.", len2
) == 0
1390 && strcmp (bfd_section_name (abfd
, text_sect
) + len2
,
1396 /* last resort: fall back on .text */
1397 text_sect
= bfd_get_section_by_name (abfd
, ".text");
1401 /* The IA-64 processor-specific ABI requires setting
1402 sh_link to the unwind section, whereas HP-UX requires
1403 sh_info to do so. For maximum compatibility, we'll
1404 set both for now... */
1405 hdr
->sh_link
= elf_section_data (text_sect
)->this_idx
;
1406 hdr
->sh_info
= elf_section_data (text_sect
)->this_idx
;
1412 if (! elf_flags_init (abfd
))
1414 unsigned long flags
= 0;
1416 if (abfd
->xvec
->byteorder
== BFD_ENDIAN_BIG
)
1417 flags
|= EF_IA_64_BE
;
1418 if (bfd_get_mach (abfd
) == bfd_mach_ia64_elf64
)
1419 flags
|= EF_IA_64_ABI64
;
1421 elf_elfheader(abfd
)->e_flags
= flags
;
1422 elf_flags_init (abfd
) = TRUE
;
1426 /* Hook called by the linker routine which adds symbols from an object
1427 file. We use it to put .comm items in .sbss, and not .bss. */
1430 elfNN_ia64_add_symbol_hook (abfd
, info
, sym
, namep
, flagsp
, secp
, valp
)
1432 struct bfd_link_info
*info
;
1433 Elf_Internal_Sym
*sym
;
1434 const char **namep ATTRIBUTE_UNUSED
;
1435 flagword
*flagsp ATTRIBUTE_UNUSED
;
1439 if (sym
->st_shndx
== SHN_COMMON
1440 && !info
->relocatable
1441 && sym
->st_size
<= elf_gp_size (abfd
))
1443 /* Common symbols less than or equal to -G nn bytes are
1444 automatically put into .sbss. */
1446 asection
*scomm
= bfd_get_section_by_name (abfd
, ".scommon");
1450 scomm
= bfd_make_section (abfd
, ".scommon");
1452 || !bfd_set_section_flags (abfd
, scomm
, (SEC_ALLOC
1454 | SEC_LINKER_CREATED
)))
1459 *valp
= sym
->st_size
;
1465 /* Return the number of additional phdrs we will need. */
1468 elfNN_ia64_additional_program_headers (abfd
)
1474 /* See if we need a PT_IA_64_ARCHEXT segment. */
1475 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1476 if (s
&& (s
->flags
& SEC_LOAD
))
1479 /* Count how many PT_IA_64_UNWIND segments we need. */
1480 for (s
= abfd
->sections
; s
; s
= s
->next
)
1481 if (is_unwind_section_name (abfd
, s
->name
) && (s
->flags
& SEC_LOAD
))
1488 elfNN_ia64_modify_segment_map (abfd
, info
)
1490 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
1492 struct elf_segment_map
*m
, **pm
;
1493 Elf_Internal_Shdr
*hdr
;
1496 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1497 all PT_LOAD segments. */
1498 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1499 if (s
&& (s
->flags
& SEC_LOAD
))
1501 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1502 if (m
->p_type
== PT_IA_64_ARCHEXT
)
1506 m
= ((struct elf_segment_map
*)
1507 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1511 m
->p_type
= PT_IA_64_ARCHEXT
;
1515 /* We want to put it after the PHDR and INTERP segments. */
1516 pm
= &elf_tdata (abfd
)->segment_map
;
1518 && ((*pm
)->p_type
== PT_PHDR
1519 || (*pm
)->p_type
== PT_INTERP
))
1527 /* Install PT_IA_64_UNWIND segments, if needed. */
1528 for (s
= abfd
->sections
; s
; s
= s
->next
)
1530 hdr
= &elf_section_data (s
)->this_hdr
;
1531 if (hdr
->sh_type
!= SHT_IA_64_UNWIND
)
1534 if (s
&& (s
->flags
& SEC_LOAD
))
1536 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1537 if (m
->p_type
== PT_IA_64_UNWIND
)
1541 /* Look through all sections in the unwind segment
1542 for a match since there may be multiple sections
1544 for (i
= m
->count
- 1; i
>= 0; --i
)
1545 if (m
->sections
[i
] == s
)
1554 m
= ((struct elf_segment_map
*)
1555 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1559 m
->p_type
= PT_IA_64_UNWIND
;
1564 /* We want to put it last. */
1565 pm
= &elf_tdata (abfd
)->segment_map
;
1573 /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1574 the input sections for each output section in the segment and testing
1575 for SHF_IA_64_NORECOV on each. */
1576 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1577 if (m
->p_type
== PT_LOAD
)
1580 for (i
= m
->count
- 1; i
>= 0; --i
)
1582 struct bfd_link_order
*order
= m
->sections
[i
]->link_order_head
;
1585 if (order
->type
== bfd_indirect_link_order
)
1587 asection
*is
= order
->u
.indirect
.section
;
1588 bfd_vma flags
= elf_section_data(is
)->this_hdr
.sh_flags
;
1589 if (flags
& SHF_IA_64_NORECOV
)
1591 m
->p_flags
|= PF_IA_64_NORECOV
;
1595 order
= order
->next
;
1604 /* According to the Tahoe assembler spec, all labels starting with a
1608 elfNN_ia64_is_local_label_name (abfd
, name
)
1609 bfd
*abfd ATTRIBUTE_UNUSED
;
1612 return name
[0] == '.';
1615 /* Should we do dynamic things to this symbol? */
1618 elfNN_ia64_dynamic_symbol_p (h
, info
, r_type
)
1619 struct elf_link_hash_entry
*h
;
1620 struct bfd_link_info
*info
;
1623 bfd_boolean ignore_protected
1624 = ((r_type
& 0xf8) == 0x40 /* FPTR relocs */
1625 || (r_type
& 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1627 return _bfd_elf_dynamic_symbol_p (h
, info
, ignore_protected
);
1630 static struct bfd_hash_entry
*
1631 elfNN_ia64_new_elf_hash_entry (entry
, table
, string
)
1632 struct bfd_hash_entry
*entry
;
1633 struct bfd_hash_table
*table
;
1636 struct elfNN_ia64_link_hash_entry
*ret
;
1637 ret
= (struct elfNN_ia64_link_hash_entry
*) entry
;
1639 /* Allocate the structure if it has not already been allocated by a
1642 ret
= bfd_hash_allocate (table
, sizeof (*ret
));
1647 /* Initialize our local data. All zeros, and definitely easier
1648 than setting a handful of bit fields. */
1649 memset (ret
, 0, sizeof (*ret
));
1651 /* Call the allocation method of the superclass. */
1652 ret
= ((struct elfNN_ia64_link_hash_entry
*)
1653 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
1656 return (struct bfd_hash_entry
*) ret
;
1660 elfNN_ia64_hash_copy_indirect (bed
, xdir
, xind
)
1661 const struct elf_backend_data
*bed ATTRIBUTE_UNUSED
;
1662 struct elf_link_hash_entry
*xdir
, *xind
;
1664 struct elfNN_ia64_link_hash_entry
*dir
, *ind
;
1666 dir
= (struct elfNN_ia64_link_hash_entry
*) xdir
;
1667 ind
= (struct elfNN_ia64_link_hash_entry
*) xind
;
1669 /* Copy down any references that we may have already seen to the
1670 symbol which just became indirect. */
1672 dir
->root
.elf_link_hash_flags
|=
1673 (ind
->root
.elf_link_hash_flags
1674 & (ELF_LINK_HASH_REF_DYNAMIC
1675 | ELF_LINK_HASH_REF_REGULAR
1676 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
1677 | ELF_LINK_HASH_NEEDS_PLT
));
1679 if (ind
->root
.root
.type
!= bfd_link_hash_indirect
)
1682 /* Copy over the got and plt data. This would have been done
1685 if (dir
->info
== NULL
)
1687 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1689 dir
->info
= dyn_i
= ind
->info
;
1692 /* Fix up the dyn_sym_info pointers to the global symbol. */
1693 for (; dyn_i
; dyn_i
= dyn_i
->next
)
1694 dyn_i
->h
= &dir
->root
;
1696 BFD_ASSERT (ind
->info
== NULL
);
1698 /* Copy over the dynindx. */
1700 if (dir
->root
.dynindx
== -1)
1702 dir
->root
.dynindx
= ind
->root
.dynindx
;
1703 dir
->root
.dynstr_index
= ind
->root
.dynstr_index
;
1704 ind
->root
.dynindx
= -1;
1705 ind
->root
.dynstr_index
= 0;
1707 BFD_ASSERT (ind
->root
.dynindx
== -1);
1711 elfNN_ia64_hash_hide_symbol (info
, xh
, force_local
)
1712 struct bfd_link_info
*info
;
1713 struct elf_link_hash_entry
*xh
;
1714 bfd_boolean force_local
;
1716 struct elfNN_ia64_link_hash_entry
*h
;
1717 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1719 h
= (struct elfNN_ia64_link_hash_entry
*)xh
;
1721 _bfd_elf_link_hash_hide_symbol (info
, &h
->root
, force_local
);
1723 for (dyn_i
= h
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1725 dyn_i
->want_plt2
= 0;
1726 dyn_i
->want_plt
= 0;
1730 /* Compute a hash of a local hash entry. */
1733 elfNN_ia64_local_htab_hash (ptr
)
1736 struct elfNN_ia64_local_hash_entry
*entry
1737 = (struct elfNN_ia64_local_hash_entry
*) ptr
;
1739 return (((entry
->id
& 0xff) << 24) | ((entry
->id
& 0xff00) << 8))
1740 ^ entry
->r_sym
^ (entry
->id
>> 16);
1743 /* Compare local hash entries. */
1746 elfNN_ia64_local_htab_eq (ptr1
, ptr2
)
1747 const void *ptr1
, *ptr2
;
1749 struct elfNN_ia64_local_hash_entry
*entry1
1750 = (struct elfNN_ia64_local_hash_entry
*) ptr1
;
1751 struct elfNN_ia64_local_hash_entry
*entry2
1752 = (struct elfNN_ia64_local_hash_entry
*) ptr2
;
1754 return entry1
->id
== entry2
->id
&& entry1
->r_sym
== entry2
->r_sym
;
1757 /* Create the derived linker hash table. The IA-64 ELF port uses this
1758 derived hash table to keep information specific to the IA-64 ElF
1759 linker (without using static variables). */
1761 static struct bfd_link_hash_table
*
1762 elfNN_ia64_hash_table_create (abfd
)
1765 struct elfNN_ia64_link_hash_table
*ret
;
1767 ret
= bfd_zmalloc ((bfd_size_type
) sizeof (*ret
));
1771 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
1772 elfNN_ia64_new_elf_hash_entry
))
1778 ret
->loc_hash_table
= htab_try_create (1024, elfNN_ia64_local_htab_hash
,
1779 elfNN_ia64_local_htab_eq
, NULL
);
1780 ret
->loc_hash_memory
= objalloc_create ();
1781 if (!ret
->loc_hash_table
|| !ret
->loc_hash_memory
)
1787 return &ret
->root
.root
;
1790 /* Destroy IA-64 linker hash table. */
1793 elfNN_ia64_hash_table_free (hash
)
1794 struct bfd_link_hash_table
*hash
;
1796 struct elfNN_ia64_link_hash_table
*ia64_info
1797 = (struct elfNN_ia64_link_hash_table
*) hash
;
1798 if (ia64_info
->loc_hash_table
)
1799 htab_delete (ia64_info
->loc_hash_table
);
1800 if (ia64_info
->loc_hash_memory
)
1801 objalloc_free ((struct objalloc
*) ia64_info
->loc_hash_memory
);
1802 _bfd_generic_link_hash_table_free (hash
);
1805 /* Traverse both local and global hash tables. */
1807 struct elfNN_ia64_dyn_sym_traverse_data
1809 bfd_boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1814 elfNN_ia64_global_dyn_sym_thunk (xentry
, xdata
)
1815 struct bfd_hash_entry
*xentry
;
1818 struct elfNN_ia64_link_hash_entry
*entry
1819 = (struct elfNN_ia64_link_hash_entry
*) xentry
;
1820 struct elfNN_ia64_dyn_sym_traverse_data
*data
1821 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1822 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1824 if (entry
->root
.root
.type
== bfd_link_hash_warning
)
1825 entry
= (struct elfNN_ia64_link_hash_entry
*) entry
->root
.root
.u
.i
.link
;
1827 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1828 if (! (*data
->func
) (dyn_i
, data
->data
))
1834 elfNN_ia64_local_dyn_sym_thunk (slot
, xdata
)
1838 struct elfNN_ia64_local_hash_entry
*entry
1839 = (struct elfNN_ia64_local_hash_entry
*) *slot
;
1840 struct elfNN_ia64_dyn_sym_traverse_data
*data
1841 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1842 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1844 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1845 if (! (*data
->func
) (dyn_i
, data
->data
))
1851 elfNN_ia64_dyn_sym_traverse (ia64_info
, func
, data
)
1852 struct elfNN_ia64_link_hash_table
*ia64_info
;
1853 bfd_boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1856 struct elfNN_ia64_dyn_sym_traverse_data xdata
;
1861 elf_link_hash_traverse (&ia64_info
->root
,
1862 elfNN_ia64_global_dyn_sym_thunk
, &xdata
);
1863 htab_traverse (ia64_info
->loc_hash_table
,
1864 elfNN_ia64_local_dyn_sym_thunk
, &xdata
);
1868 elfNN_ia64_create_dynamic_sections (abfd
, info
)
1870 struct bfd_link_info
*info
;
1872 struct elfNN_ia64_link_hash_table
*ia64_info
;
1875 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
1878 ia64_info
= elfNN_ia64_hash_table (info
);
1880 ia64_info
->plt_sec
= bfd_get_section_by_name (abfd
, ".plt");
1881 ia64_info
->got_sec
= bfd_get_section_by_name (abfd
, ".got");
1884 flagword flags
= bfd_get_section_flags (abfd
, ia64_info
->got_sec
);
1885 bfd_set_section_flags (abfd
, ia64_info
->got_sec
, SEC_SMALL_DATA
| flags
);
1886 /* The .got section is always aligned at 8 bytes. */
1887 bfd_set_section_alignment (abfd
, ia64_info
->got_sec
, 3);
1890 if (!get_pltoff (abfd
, info
, ia64_info
))
1893 s
= bfd_make_section(abfd
, ".rela.IA_64.pltoff");
1895 || !bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1898 | SEC_LINKER_CREATED
1900 || !bfd_set_section_alignment (abfd
, s
, 3))
1902 ia64_info
->rel_pltoff_sec
= s
;
1904 s
= bfd_make_section(abfd
, ".rela.got");
1906 || !bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1909 | SEC_LINKER_CREATED
1911 || !bfd_set_section_alignment (abfd
, s
, 3))
1913 ia64_info
->rel_got_sec
= s
;
1918 /* Find and/or create a hash entry for local symbol. */
1919 static struct elfNN_ia64_local_hash_entry
*
1920 get_local_sym_hash (ia64_info
, abfd
, rel
, create
)
1921 struct elfNN_ia64_link_hash_table
*ia64_info
;
1923 const Elf_Internal_Rela
*rel
;
1926 struct elfNN_ia64_local_hash_entry e
, *ret
;
1927 asection
*sec
= abfd
->sections
;
1928 hashval_t h
= (((sec
->id
& 0xff) << 24) | ((sec
->id
& 0xff00) << 8))
1929 ^ ELFNN_R_SYM (rel
->r_info
) ^ (sec
->id
>> 16);
1933 e
.r_sym
= ELFNN_R_SYM (rel
->r_info
);
1934 slot
= htab_find_slot_with_hash (ia64_info
->loc_hash_table
, &e
, h
,
1935 create
? INSERT
: NO_INSERT
);
1941 return (struct elfNN_ia64_local_hash_entry
*) *slot
;
1943 ret
= (struct elfNN_ia64_local_hash_entry
*)
1944 objalloc_alloc ((struct objalloc
*) ia64_info
->loc_hash_memory
,
1945 sizeof (struct elfNN_ia64_local_hash_entry
));
1948 memset (ret
, 0, sizeof (*ret
));
1950 ret
->r_sym
= ELFNN_R_SYM (rel
->r_info
);
1956 /* Find and/or create a descriptor for dynamic symbol info. This will
1957 vary based on global or local symbol, and the addend to the reloc. */
1959 static struct elfNN_ia64_dyn_sym_info
*
1960 get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, create
)
1961 struct elfNN_ia64_link_hash_table
*ia64_info
;
1962 struct elf_link_hash_entry
*h
;
1964 const Elf_Internal_Rela
*rel
;
1967 struct elfNN_ia64_dyn_sym_info
**pp
;
1968 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1969 bfd_vma addend
= rel
? rel
->r_addend
: 0;
1972 pp
= &((struct elfNN_ia64_link_hash_entry
*)h
)->info
;
1975 struct elfNN_ia64_local_hash_entry
*loc_h
;
1977 loc_h
= get_local_sym_hash (ia64_info
, abfd
, rel
, create
);
1980 BFD_ASSERT (!create
);
1987 for (dyn_i
= *pp
; dyn_i
&& dyn_i
->addend
!= addend
; dyn_i
= *pp
)
1990 if (dyn_i
== NULL
&& create
)
1992 dyn_i
= ((struct elfNN_ia64_dyn_sym_info
*)
1993 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *dyn_i
));
1995 dyn_i
->addend
= addend
;
2002 get_got (abfd
, info
, ia64_info
)
2004 struct bfd_link_info
*info
;
2005 struct elfNN_ia64_link_hash_table
*ia64_info
;
2010 got
= ia64_info
->got_sec
;
2015 dynobj
= ia64_info
->root
.dynobj
;
2017 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2018 if (!_bfd_elf_create_got_section (dynobj
, info
))
2021 got
= bfd_get_section_by_name (dynobj
, ".got");
2023 ia64_info
->got_sec
= got
;
2025 /* The .got section is always aligned at 8 bytes. */
2026 if (!bfd_set_section_alignment (abfd
, got
, 3))
2029 flags
= bfd_get_section_flags (abfd
, got
);
2030 bfd_set_section_flags (abfd
, got
, SEC_SMALL_DATA
| flags
);
2036 /* Create function descriptor section (.opd). This section is called .opd
2037 because it contains "official procedure descriptors". The "official"
2038 refers to the fact that these descriptors are used when taking the address
2039 of a procedure, thus ensuring a unique address for each procedure. */
2042 get_fptr (abfd
, info
, ia64_info
)
2044 struct bfd_link_info
*info
;
2045 struct elfNN_ia64_link_hash_table
*ia64_info
;
2050 fptr
= ia64_info
->fptr_sec
;
2053 dynobj
= ia64_info
->root
.dynobj
;
2055 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2057 fptr
= bfd_make_section (dynobj
, ".opd");
2059 || !bfd_set_section_flags (dynobj
, fptr
,
2064 | (info
->pie
? 0 : SEC_READONLY
)
2065 | SEC_LINKER_CREATED
))
2066 || !bfd_set_section_alignment (abfd
, fptr
, 4))
2072 ia64_info
->fptr_sec
= fptr
;
2077 fptr_rel
= bfd_make_section(dynobj
, ".rela.opd");
2078 if (fptr_rel
== NULL
2079 || !bfd_set_section_flags (dynobj
, fptr_rel
,
2080 (SEC_ALLOC
| SEC_LOAD
2083 | SEC_LINKER_CREATED
2085 || !bfd_set_section_alignment (abfd
, fptr_rel
, 3))
2091 ia64_info
->rel_fptr_sec
= fptr_rel
;
2099 get_pltoff (abfd
, info
, ia64_info
)
2101 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
2102 struct elfNN_ia64_link_hash_table
*ia64_info
;
2107 pltoff
= ia64_info
->pltoff_sec
;
2110 dynobj
= ia64_info
->root
.dynobj
;
2112 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2114 pltoff
= bfd_make_section (dynobj
, ELF_STRING_ia64_pltoff
);
2116 || !bfd_set_section_flags (dynobj
, pltoff
,
2122 | SEC_LINKER_CREATED
))
2123 || !bfd_set_section_alignment (abfd
, pltoff
, 4))
2129 ia64_info
->pltoff_sec
= pltoff
;
2136 get_reloc_section (abfd
, ia64_info
, sec
, create
)
2138 struct elfNN_ia64_link_hash_table
*ia64_info
;
2142 const char *srel_name
;
2146 srel_name
= (bfd_elf_string_from_elf_section
2147 (abfd
, elf_elfheader(abfd
)->e_shstrndx
,
2148 elf_section_data(sec
)->rel_hdr
.sh_name
));
2149 if (srel_name
== NULL
)
2152 BFD_ASSERT ((strncmp (srel_name
, ".rela", 5) == 0
2153 && strcmp (bfd_get_section_name (abfd
, sec
),
2155 || (strncmp (srel_name
, ".rel", 4) == 0
2156 && strcmp (bfd_get_section_name (abfd
, sec
),
2157 srel_name
+4) == 0));
2159 dynobj
= ia64_info
->root
.dynobj
;
2161 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2163 srel
= bfd_get_section_by_name (dynobj
, srel_name
);
2164 if (srel
== NULL
&& create
)
2166 srel
= bfd_make_section (dynobj
, srel_name
);
2168 || !bfd_set_section_flags (dynobj
, srel
,
2173 | SEC_LINKER_CREATED
2175 || !bfd_set_section_alignment (dynobj
, srel
, 3))
2183 count_dyn_reloc (bfd
*abfd
, struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2184 asection
*srel
, int type
, bfd_boolean reltext
)
2186 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2188 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2189 if (rent
->srel
== srel
&& rent
->type
== type
)
2194 rent
= ((struct elfNN_ia64_dyn_reloc_entry
*)
2195 bfd_alloc (abfd
, (bfd_size_type
) sizeof (*rent
)));
2199 rent
->next
= dyn_i
->reloc_entries
;
2203 dyn_i
->reloc_entries
= rent
;
2205 rent
->reltext
= reltext
;
2212 elfNN_ia64_check_relocs (abfd
, info
, sec
, relocs
)
2214 struct bfd_link_info
*info
;
2216 const Elf_Internal_Rela
*relocs
;
2218 struct elfNN_ia64_link_hash_table
*ia64_info
;
2219 const Elf_Internal_Rela
*relend
;
2220 Elf_Internal_Shdr
*symtab_hdr
;
2221 const Elf_Internal_Rela
*rel
;
2222 asection
*got
, *fptr
, *srel
;
2224 if (info
->relocatable
)
2227 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
2228 ia64_info
= elfNN_ia64_hash_table (info
);
2230 got
= fptr
= srel
= NULL
;
2232 relend
= relocs
+ sec
->reloc_count
;
2233 for (rel
= relocs
; rel
< relend
; ++rel
)
2243 NEED_LTOFF_FPTR
= 128,
2249 struct elf_link_hash_entry
*h
= NULL
;
2250 unsigned long r_symndx
= ELFNN_R_SYM (rel
->r_info
);
2251 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2253 bfd_boolean maybe_dynamic
;
2254 int dynrel_type
= R_IA64_NONE
;
2256 if (r_symndx
>= symtab_hdr
->sh_info
)
2258 /* We're dealing with a global symbol -- find its hash entry
2259 and mark it as being referenced. */
2260 long indx
= r_symndx
- symtab_hdr
->sh_info
;
2261 h
= elf_sym_hashes (abfd
)[indx
];
2262 while (h
->root
.type
== bfd_link_hash_indirect
2263 || h
->root
.type
== bfd_link_hash_warning
)
2264 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2266 h
->elf_link_hash_flags
|= ELF_LINK_HASH_REF_REGULAR
;
2269 /* We can only get preliminary data on whether a symbol is
2270 locally or externally defined, as not all of the input files
2271 have yet been processed. Do something with what we know, as
2272 this may help reduce memory usage and processing time later. */
2273 maybe_dynamic
= FALSE
;
2274 if (h
&& ((!info
->executable
2275 && (!info
->symbolic
|| info
->unresolved_syms_in_shared_libs
== RM_IGNORE
))
2276 || ! (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
)
2277 || h
->root
.type
== bfd_link_hash_defweak
))
2278 maybe_dynamic
= TRUE
;
2281 switch (ELFNN_R_TYPE (rel
->r_info
))
2283 case R_IA64_TPREL64MSB
:
2284 case R_IA64_TPREL64LSB
:
2285 if (info
->shared
|| maybe_dynamic
)
2286 need_entry
= NEED_DYNREL
;
2287 dynrel_type
= R_IA64_TPREL64LSB
;
2289 info
->flags
|= DF_STATIC_TLS
;
2292 case R_IA64_LTOFF_TPREL22
:
2293 need_entry
= NEED_TPREL
;
2295 info
->flags
|= DF_STATIC_TLS
;
2298 case R_IA64_DTPREL64MSB
:
2299 case R_IA64_DTPREL64LSB
:
2300 if (info
->shared
|| maybe_dynamic
)
2301 need_entry
= NEED_DYNREL
;
2302 dynrel_type
= R_IA64_DTPREL64LSB
;
2305 case R_IA64_LTOFF_DTPREL22
:
2306 need_entry
= NEED_DTPREL
;
2309 case R_IA64_DTPMOD64MSB
:
2310 case R_IA64_DTPMOD64LSB
:
2311 if (info
->shared
|| maybe_dynamic
)
2312 need_entry
= NEED_DYNREL
;
2313 dynrel_type
= R_IA64_DTPMOD64LSB
;
2316 case R_IA64_LTOFF_DTPMOD22
:
2317 need_entry
= NEED_DTPMOD
;
2320 case R_IA64_LTOFF_FPTR22
:
2321 case R_IA64_LTOFF_FPTR64I
:
2322 case R_IA64_LTOFF_FPTR32MSB
:
2323 case R_IA64_LTOFF_FPTR32LSB
:
2324 case R_IA64_LTOFF_FPTR64MSB
:
2325 case R_IA64_LTOFF_FPTR64LSB
:
2326 need_entry
= NEED_FPTR
| NEED_GOT
| NEED_LTOFF_FPTR
;
2329 case R_IA64_FPTR64I
:
2330 case R_IA64_FPTR32MSB
:
2331 case R_IA64_FPTR32LSB
:
2332 case R_IA64_FPTR64MSB
:
2333 case R_IA64_FPTR64LSB
:
2334 if (info
->shared
|| h
)
2335 need_entry
= NEED_FPTR
| NEED_DYNREL
;
2337 need_entry
= NEED_FPTR
;
2338 dynrel_type
= R_IA64_FPTR64LSB
;
2341 case R_IA64_LTOFF22
:
2342 case R_IA64_LTOFF64I
:
2343 need_entry
= NEED_GOT
;
2346 case R_IA64_LTOFF22X
:
2347 need_entry
= NEED_GOTX
;
2350 case R_IA64_PLTOFF22
:
2351 case R_IA64_PLTOFF64I
:
2352 case R_IA64_PLTOFF64MSB
:
2353 case R_IA64_PLTOFF64LSB
:
2354 need_entry
= NEED_PLTOFF
;
2358 need_entry
|= NEED_MIN_PLT
;
2362 (*info
->callbacks
->warning
)
2363 (info
, _("@pltoff reloc against local symbol"), 0,
2364 abfd
, 0, (bfd_vma
) 0);
2368 case R_IA64_PCREL21B
:
2369 case R_IA64_PCREL60B
:
2370 /* Depending on where this symbol is defined, we may or may not
2371 need a full plt entry. Only skip if we know we'll not need
2372 the entry -- static or symbolic, and the symbol definition
2373 has already been seen. */
2374 if (maybe_dynamic
&& rel
->r_addend
== 0)
2375 need_entry
= NEED_FULL_PLT
;
2381 case R_IA64_DIR32MSB
:
2382 case R_IA64_DIR32LSB
:
2383 case R_IA64_DIR64MSB
:
2384 case R_IA64_DIR64LSB
:
2385 /* Shared objects will always need at least a REL relocation. */
2386 if (info
->shared
|| maybe_dynamic
)
2387 need_entry
= NEED_DYNREL
;
2388 dynrel_type
= R_IA64_DIR64LSB
;
2391 case R_IA64_IPLTMSB
:
2392 case R_IA64_IPLTLSB
:
2393 /* Shared objects will always need at least a REL relocation. */
2394 if (info
->shared
|| maybe_dynamic
)
2395 need_entry
= NEED_DYNREL
;
2396 dynrel_type
= R_IA64_IPLTLSB
;
2399 case R_IA64_PCREL22
:
2400 case R_IA64_PCREL64I
:
2401 case R_IA64_PCREL32MSB
:
2402 case R_IA64_PCREL32LSB
:
2403 case R_IA64_PCREL64MSB
:
2404 case R_IA64_PCREL64LSB
:
2406 need_entry
= NEED_DYNREL
;
2407 dynrel_type
= R_IA64_PCREL64LSB
;
2414 if ((need_entry
& NEED_FPTR
) != 0
2417 (*info
->callbacks
->warning
)
2418 (info
, _("non-zero addend in @fptr reloc"), 0,
2419 abfd
, 0, (bfd_vma
) 0);
2422 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, TRUE
);
2424 /* Record whether or not this is a local symbol. */
2427 /* Create what's needed. */
2428 if (need_entry
& (NEED_GOT
| NEED_GOTX
| NEED_TPREL
2429 | NEED_DTPMOD
| NEED_DTPREL
))
2433 got
= get_got (abfd
, info
, ia64_info
);
2437 if (need_entry
& NEED_GOT
)
2438 dyn_i
->want_got
= 1;
2439 if (need_entry
& NEED_GOTX
)
2440 dyn_i
->want_gotx
= 1;
2441 if (need_entry
& NEED_TPREL
)
2442 dyn_i
->want_tprel
= 1;
2443 if (need_entry
& NEED_DTPMOD
)
2444 dyn_i
->want_dtpmod
= 1;
2445 if (need_entry
& NEED_DTPREL
)
2446 dyn_i
->want_dtprel
= 1;
2448 if (need_entry
& NEED_FPTR
)
2452 fptr
= get_fptr (abfd
, info
, ia64_info
);
2457 /* FPTRs for shared libraries are allocated by the dynamic
2458 linker. Make sure this local symbol will appear in the
2459 dynamic symbol table. */
2460 if (!h
&& info
->shared
)
2462 if (! (_bfd_elfNN_link_record_local_dynamic_symbol
2463 (info
, abfd
, (long) r_symndx
)))
2467 dyn_i
->want_fptr
= 1;
2469 if (need_entry
& NEED_LTOFF_FPTR
)
2470 dyn_i
->want_ltoff_fptr
= 1;
2471 if (need_entry
& (NEED_MIN_PLT
| NEED_FULL_PLT
))
2473 if (!ia64_info
->root
.dynobj
)
2474 ia64_info
->root
.dynobj
= abfd
;
2475 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
2476 dyn_i
->want_plt
= 1;
2478 if (need_entry
& NEED_FULL_PLT
)
2479 dyn_i
->want_plt2
= 1;
2480 if (need_entry
& NEED_PLTOFF
)
2481 dyn_i
->want_pltoff
= 1;
2482 if ((need_entry
& NEED_DYNREL
) && (sec
->flags
& SEC_ALLOC
))
2486 srel
= get_reloc_section (abfd
, ia64_info
, sec
, TRUE
);
2490 if (!count_dyn_reloc (abfd
, dyn_i
, srel
, dynrel_type
,
2491 (sec
->flags
& SEC_READONLY
) != 0))
2499 /* For cleanliness, and potentially faster dynamic loading, allocate
2500 external GOT entries first. */
2503 allocate_global_data_got (dyn_i
, data
)
2504 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2507 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2509 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2510 && ! dyn_i
->want_fptr
2511 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2513 dyn_i
->got_offset
= x
->ofs
;
2516 if (dyn_i
->want_tprel
)
2518 dyn_i
->tprel_offset
= x
->ofs
;
2521 if (dyn_i
->want_dtpmod
)
2523 if (elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2525 dyn_i
->dtpmod_offset
= x
->ofs
;
2530 struct elfNN_ia64_link_hash_table
*ia64_info
;
2532 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2533 if (ia64_info
->self_dtpmod_offset
== (bfd_vma
) -1)
2535 ia64_info
->self_dtpmod_offset
= x
->ofs
;
2538 dyn_i
->dtpmod_offset
= ia64_info
->self_dtpmod_offset
;
2541 if (dyn_i
->want_dtprel
)
2543 dyn_i
->dtprel_offset
= x
->ofs
;
2549 /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2552 allocate_global_fptr_got (dyn_i
, data
)
2553 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2556 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2560 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, R_IA64_FPTR64LSB
))
2562 dyn_i
->got_offset
= x
->ofs
;
2568 /* Lastly, allocate all the GOT entries for local data. */
2571 allocate_local_got (dyn_i
, data
)
2572 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2575 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2577 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2578 && !elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2580 dyn_i
->got_offset
= x
->ofs
;
2586 /* Search for the index of a global symbol in it's defining object file. */
2589 global_sym_index (h
)
2590 struct elf_link_hash_entry
*h
;
2592 struct elf_link_hash_entry
**p
;
2595 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
2596 || h
->root
.type
== bfd_link_hash_defweak
);
2598 obj
= h
->root
.u
.def
.section
->owner
;
2599 for (p
= elf_sym_hashes (obj
); *p
!= h
; ++p
)
2602 return p
- elf_sym_hashes (obj
) + elf_tdata (obj
)->symtab_hdr
.sh_info
;
2605 /* Allocate function descriptors. We can do these for every function
2606 in a main executable that is not exported. */
2609 allocate_fptr (dyn_i
, data
)
2610 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2613 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2615 if (dyn_i
->want_fptr
)
2617 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2620 while (h
->root
.type
== bfd_link_hash_indirect
2621 || h
->root
.type
== bfd_link_hash_warning
)
2622 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2624 if (!x
->info
->executable
2626 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2627 || h
->root
.type
!= bfd_link_hash_undefweak
))
2629 if (h
&& h
->dynindx
== -1)
2631 BFD_ASSERT ((h
->root
.type
== bfd_link_hash_defined
)
2632 || (h
->root
.type
== bfd_link_hash_defweak
));
2634 if (!_bfd_elfNN_link_record_local_dynamic_symbol
2635 (x
->info
, h
->root
.u
.def
.section
->owner
,
2636 global_sym_index (h
)))
2640 dyn_i
->want_fptr
= 0;
2642 else if (h
== NULL
|| h
->dynindx
== -1)
2644 dyn_i
->fptr_offset
= x
->ofs
;
2648 dyn_i
->want_fptr
= 0;
2653 /* Allocate all the minimal PLT entries. */
2656 allocate_plt_entries (dyn_i
, data
)
2657 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2660 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2662 if (dyn_i
->want_plt
)
2664 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2667 while (h
->root
.type
== bfd_link_hash_indirect
2668 || h
->root
.type
== bfd_link_hash_warning
)
2669 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2671 /* ??? Versioned symbols seem to lose ELF_LINK_HASH_NEEDS_PLT. */
2672 if (elfNN_ia64_dynamic_symbol_p (h
, x
->info
, 0))
2674 bfd_size_type offset
= x
->ofs
;
2676 offset
= PLT_HEADER_SIZE
;
2677 dyn_i
->plt_offset
= offset
;
2678 x
->ofs
= offset
+ PLT_MIN_ENTRY_SIZE
;
2680 dyn_i
->want_pltoff
= 1;
2684 dyn_i
->want_plt
= 0;
2685 dyn_i
->want_plt2
= 0;
2691 /* Allocate all the full PLT entries. */
2694 allocate_plt2_entries (dyn_i
, data
)
2695 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2698 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2700 if (dyn_i
->want_plt2
)
2702 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2703 bfd_size_type ofs
= x
->ofs
;
2705 dyn_i
->plt2_offset
= ofs
;
2706 x
->ofs
= ofs
+ PLT_FULL_ENTRY_SIZE
;
2708 while (h
->root
.type
== bfd_link_hash_indirect
2709 || h
->root
.type
== bfd_link_hash_warning
)
2710 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2711 dyn_i
->h
->plt
.offset
= ofs
;
2716 /* Allocate all the PLTOFF entries requested by relocations and
2717 plt entries. We can't share space with allocated FPTR entries,
2718 because the latter are not necessarily addressable by the GP.
2719 ??? Relaxation might be able to determine that they are. */
2722 allocate_pltoff_entries (dyn_i
, data
)
2723 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2726 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2728 if (dyn_i
->want_pltoff
)
2730 dyn_i
->pltoff_offset
= x
->ofs
;
2736 /* Allocate dynamic relocations for those symbols that turned out
2740 allocate_dynrel_entries (dyn_i
, data
)
2741 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2744 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2745 struct elfNN_ia64_link_hash_table
*ia64_info
;
2746 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2747 bfd_boolean dynamic_symbol
, shared
, resolved_zero
;
2749 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2751 /* Note that this can't be used in relation to FPTR relocs below. */
2752 dynamic_symbol
= elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0);
2754 shared
= x
->info
->shared
;
2755 resolved_zero
= (dyn_i
->h
2756 && ELF_ST_VISIBILITY (dyn_i
->h
->other
)
2757 && dyn_i
->h
->root
.type
== bfd_link_hash_undefweak
);
2759 /* Take care of the normal data relocations. */
2761 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2763 int count
= rent
->count
;
2767 case R_IA64_FPTR64LSB
:
2768 /* Allocate one iff !want_fptr and not PIE, which by this point
2769 will be true only if we're actually allocating one statically
2770 in the main executable. Position independent executables
2771 need a relative reloc. */
2772 if (dyn_i
->want_fptr
&& !x
->info
->pie
)
2775 case R_IA64_PCREL64LSB
:
2776 if (!dynamic_symbol
)
2779 case R_IA64_DIR64LSB
:
2780 if (!dynamic_symbol
&& !shared
)
2783 case R_IA64_IPLTLSB
:
2784 if (!dynamic_symbol
&& !shared
)
2786 /* Use two REL relocations for IPLT relocations
2787 against local symbols. */
2788 if (!dynamic_symbol
)
2791 case R_IA64_TPREL64LSB
:
2792 case R_IA64_DTPREL64LSB
:
2793 case R_IA64_DTPMOD64LSB
:
2799 ia64_info
->reltext
= 1;
2800 rent
->srel
->_raw_size
+= sizeof (ElfNN_External_Rela
) * count
;
2803 /* Take care of the GOT and PLT relocations. */
2806 && (dynamic_symbol
|| shared
)
2807 && (dyn_i
->want_got
|| dyn_i
->want_gotx
))
2808 || (dyn_i
->want_ltoff_fptr
2810 && dyn_i
->h
->dynindx
!= -1))
2812 if (!dyn_i
->want_ltoff_fptr
2815 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2816 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2818 if ((dynamic_symbol
|| shared
) && dyn_i
->want_tprel
)
2819 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2820 if (dynamic_symbol
&& dyn_i
->want_dtpmod
)
2821 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2822 if (dynamic_symbol
&& dyn_i
->want_dtprel
)
2823 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2824 if (ia64_info
->rel_fptr_sec
&& dyn_i
->want_fptr
)
2826 if (dyn_i
->h
== NULL
|| dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2827 ia64_info
->rel_fptr_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2830 if (!resolved_zero
&& dyn_i
->want_pltoff
)
2832 bfd_size_type t
= 0;
2834 /* Dynamic symbols get one IPLT relocation. Local symbols in
2835 shared libraries get two REL relocations. Local symbols in
2836 main applications get nothing. */
2838 t
= sizeof (ElfNN_External_Rela
);
2840 t
= 2 * sizeof (ElfNN_External_Rela
);
2842 ia64_info
->rel_pltoff_sec
->_raw_size
+= t
;
2849 elfNN_ia64_adjust_dynamic_symbol (info
, h
)
2850 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
2851 struct elf_link_hash_entry
*h
;
2853 /* ??? Undefined symbols with PLT entries should be re-defined
2854 to be the PLT entry. */
2856 /* If this is a weak symbol, and there is a real definition, the
2857 processor independent code will have arranged for us to see the
2858 real definition first, and we can just use the same value. */
2859 if (h
->weakdef
!= NULL
)
2861 BFD_ASSERT (h
->weakdef
->root
.type
== bfd_link_hash_defined
2862 || h
->weakdef
->root
.type
== bfd_link_hash_defweak
);
2863 h
->root
.u
.def
.section
= h
->weakdef
->root
.u
.def
.section
;
2864 h
->root
.u
.def
.value
= h
->weakdef
->root
.u
.def
.value
;
2868 /* If this is a reference to a symbol defined by a dynamic object which
2869 is not a function, we might allocate the symbol in our .dynbss section
2870 and allocate a COPY dynamic relocation.
2872 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
2879 elfNN_ia64_size_dynamic_sections (output_bfd
, info
)
2880 bfd
*output_bfd ATTRIBUTE_UNUSED
;
2881 struct bfd_link_info
*info
;
2883 struct elfNN_ia64_allocate_data data
;
2884 struct elfNN_ia64_link_hash_table
*ia64_info
;
2887 bfd_boolean relplt
= FALSE
;
2889 dynobj
= elf_hash_table(info
)->dynobj
;
2890 ia64_info
= elfNN_ia64_hash_table (info
);
2891 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
2892 BFD_ASSERT(dynobj
!= NULL
);
2895 /* Set the contents of the .interp section to the interpreter. */
2896 if (ia64_info
->root
.dynamic_sections_created
2897 && info
->executable
)
2899 sec
= bfd_get_section_by_name (dynobj
, ".interp");
2900 BFD_ASSERT (sec
!= NULL
);
2901 sec
->contents
= (bfd_byte
*) ELF_DYNAMIC_INTERPRETER
;
2902 sec
->_raw_size
= strlen (ELF_DYNAMIC_INTERPRETER
) + 1;
2905 /* Allocate the GOT entries. */
2907 if (ia64_info
->got_sec
)
2910 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
2911 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
2912 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
2913 ia64_info
->got_sec
->_raw_size
= data
.ofs
;
2916 /* Allocate the FPTR entries. */
2918 if (ia64_info
->fptr_sec
)
2921 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_fptr
, &data
);
2922 ia64_info
->fptr_sec
->_raw_size
= data
.ofs
;
2925 /* Now that we've seen all of the input files, we can decide which
2926 symbols need plt entries. Allocate the minimal PLT entries first.
2927 We do this even though dynamic_sections_created may be FALSE, because
2928 this has the side-effect of clearing want_plt and want_plt2. */
2931 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt_entries
, &data
);
2933 ia64_info
->minplt_entries
= 0;
2936 ia64_info
->minplt_entries
2937 = (data
.ofs
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
2940 /* Align the pointer for the plt2 entries. */
2941 data
.ofs
= (data
.ofs
+ 31) & (bfd_vma
) -32;
2943 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt2_entries
, &data
);
2946 BFD_ASSERT (ia64_info
->root
.dynamic_sections_created
);
2948 ia64_info
->plt_sec
->_raw_size
= data
.ofs
;
2950 /* If we've got a .plt, we need some extra memory for the dynamic
2951 linker. We stuff these in .got.plt. */
2952 sec
= bfd_get_section_by_name (dynobj
, ".got.plt");
2953 sec
->_raw_size
= 8 * PLT_RESERVED_WORDS
;
2956 /* Allocate the PLTOFF entries. */
2958 if (ia64_info
->pltoff_sec
)
2961 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_pltoff_entries
, &data
);
2962 ia64_info
->pltoff_sec
->_raw_size
= data
.ofs
;
2965 if (ia64_info
->root
.dynamic_sections_created
)
2967 /* Allocate space for the dynamic relocations that turned out to be
2970 if (info
->shared
&& ia64_info
->self_dtpmod_offset
!= (bfd_vma
) -1)
2971 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2972 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_dynrel_entries
, &data
);
2975 /* We have now determined the sizes of the various dynamic sections.
2976 Allocate memory for them. */
2977 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
2981 if (!(sec
->flags
& SEC_LINKER_CREATED
))
2984 /* If we don't need this section, strip it from the output file.
2985 There were several sections primarily related to dynamic
2986 linking that must be create before the linker maps input
2987 sections to output sections. The linker does that before
2988 bfd_elf_size_dynamic_sections is called, and it is that
2989 function which decides whether anything needs to go into
2992 strip
= (sec
->_raw_size
== 0);
2994 if (sec
== ia64_info
->got_sec
)
2996 else if (sec
== ia64_info
->rel_got_sec
)
2999 ia64_info
->rel_got_sec
= NULL
;
3001 /* We use the reloc_count field as a counter if we need to
3002 copy relocs into the output file. */
3003 sec
->reloc_count
= 0;
3005 else if (sec
== ia64_info
->fptr_sec
)
3008 ia64_info
->fptr_sec
= NULL
;
3010 else if (sec
== ia64_info
->rel_fptr_sec
)
3013 ia64_info
->rel_fptr_sec
= NULL
;
3015 /* We use the reloc_count field as a counter if we need to
3016 copy relocs into the output file. */
3017 sec
->reloc_count
= 0;
3019 else if (sec
== ia64_info
->plt_sec
)
3022 ia64_info
->plt_sec
= NULL
;
3024 else if (sec
== ia64_info
->pltoff_sec
)
3027 ia64_info
->pltoff_sec
= NULL
;
3029 else if (sec
== ia64_info
->rel_pltoff_sec
)
3032 ia64_info
->rel_pltoff_sec
= NULL
;
3036 /* We use the reloc_count field as a counter if we need to
3037 copy relocs into the output file. */
3038 sec
->reloc_count
= 0;
3045 /* It's OK to base decisions on the section name, because none
3046 of the dynobj section names depend upon the input files. */
3047 name
= bfd_get_section_name (dynobj
, sec
);
3049 if (strcmp (name
, ".got.plt") == 0)
3051 else if (strncmp (name
, ".rel", 4) == 0)
3055 /* We use the reloc_count field as a counter if we need to
3056 copy relocs into the output file. */
3057 sec
->reloc_count
= 0;
3065 _bfd_strip_section_from_output (info
, sec
);
3068 /* Allocate memory for the section contents. */
3069 sec
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, sec
->_raw_size
);
3070 if (sec
->contents
== NULL
&& sec
->_raw_size
!= 0)
3075 if (elf_hash_table (info
)->dynamic_sections_created
)
3077 /* Add some entries to the .dynamic section. We fill in the values
3078 later (in finish_dynamic_sections) but we must add the entries now
3079 so that we get the correct size for the .dynamic section. */
3081 if (info
->executable
)
3083 /* The DT_DEBUG entry is filled in by the dynamic linker and used
3085 #define add_dynamic_entry(TAG, VAL) \
3086 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3088 if (!add_dynamic_entry (DT_DEBUG
, 0))
3092 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE
, 0))
3094 if (!add_dynamic_entry (DT_PLTGOT
, 0))
3099 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
3100 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3101 || !add_dynamic_entry (DT_JMPREL
, 0))
3105 if (!add_dynamic_entry (DT_RELA
, 0)
3106 || !add_dynamic_entry (DT_RELASZ
, 0)
3107 || !add_dynamic_entry (DT_RELAENT
, sizeof (ElfNN_External_Rela
)))
3110 if (ia64_info
->reltext
)
3112 if (!add_dynamic_entry (DT_TEXTREL
, 0))
3114 info
->flags
|= DF_TEXTREL
;
3118 /* ??? Perhaps force __gp local. */
3123 static bfd_reloc_status_type
3124 elfNN_ia64_install_value (abfd
, hit_addr
, v
, r_type
)
3128 unsigned int r_type
;
3130 const struct ia64_operand
*op
;
3131 int bigendian
= 0, shift
= 0;
3132 bfd_vma t0
, t1
, insn
, dword
;
3133 enum ia64_opnd opnd
;
3136 #ifdef BFD_HOST_U_64_BIT
3137 BFD_HOST_U_64_BIT val
= (BFD_HOST_U_64_BIT
) v
;
3142 opnd
= IA64_OPND_NIL
;
3147 return bfd_reloc_ok
;
3149 /* Instruction relocations. */
3152 case R_IA64_TPREL14
:
3153 case R_IA64_DTPREL14
:
3154 opnd
= IA64_OPND_IMM14
;
3157 case R_IA64_PCREL21F
: opnd
= IA64_OPND_TGT25
; break;
3158 case R_IA64_PCREL21M
: opnd
= IA64_OPND_TGT25b
; break;
3159 case R_IA64_PCREL60B
: opnd
= IA64_OPND_TGT64
; break;
3160 case R_IA64_PCREL21B
:
3161 case R_IA64_PCREL21BI
:
3162 opnd
= IA64_OPND_TGT25c
;
3166 case R_IA64_GPREL22
:
3167 case R_IA64_LTOFF22
:
3168 case R_IA64_LTOFF22X
:
3169 case R_IA64_PLTOFF22
:
3170 case R_IA64_PCREL22
:
3171 case R_IA64_LTOFF_FPTR22
:
3172 case R_IA64_TPREL22
:
3173 case R_IA64_DTPREL22
:
3174 case R_IA64_LTOFF_TPREL22
:
3175 case R_IA64_LTOFF_DTPMOD22
:
3176 case R_IA64_LTOFF_DTPREL22
:
3177 opnd
= IA64_OPND_IMM22
;
3181 case R_IA64_GPREL64I
:
3182 case R_IA64_LTOFF64I
:
3183 case R_IA64_PLTOFF64I
:
3184 case R_IA64_PCREL64I
:
3185 case R_IA64_FPTR64I
:
3186 case R_IA64_LTOFF_FPTR64I
:
3187 case R_IA64_TPREL64I
:
3188 case R_IA64_DTPREL64I
:
3189 opnd
= IA64_OPND_IMMU64
;
3192 /* Data relocations. */
3194 case R_IA64_DIR32MSB
:
3195 case R_IA64_GPREL32MSB
:
3196 case R_IA64_FPTR32MSB
:
3197 case R_IA64_PCREL32MSB
:
3198 case R_IA64_LTOFF_FPTR32MSB
:
3199 case R_IA64_SEGREL32MSB
:
3200 case R_IA64_SECREL32MSB
:
3201 case R_IA64_LTV32MSB
:
3202 case R_IA64_DTPREL32MSB
:
3203 size
= 4; bigendian
= 1;
3206 case R_IA64_DIR32LSB
:
3207 case R_IA64_GPREL32LSB
:
3208 case R_IA64_FPTR32LSB
:
3209 case R_IA64_PCREL32LSB
:
3210 case R_IA64_LTOFF_FPTR32LSB
:
3211 case R_IA64_SEGREL32LSB
:
3212 case R_IA64_SECREL32LSB
:
3213 case R_IA64_LTV32LSB
:
3214 case R_IA64_DTPREL32LSB
:
3215 size
= 4; bigendian
= 0;
3218 case R_IA64_DIR64MSB
:
3219 case R_IA64_GPREL64MSB
:
3220 case R_IA64_PLTOFF64MSB
:
3221 case R_IA64_FPTR64MSB
:
3222 case R_IA64_PCREL64MSB
:
3223 case R_IA64_LTOFF_FPTR64MSB
:
3224 case R_IA64_SEGREL64MSB
:
3225 case R_IA64_SECREL64MSB
:
3226 case R_IA64_LTV64MSB
:
3227 case R_IA64_TPREL64MSB
:
3228 case R_IA64_DTPMOD64MSB
:
3229 case R_IA64_DTPREL64MSB
:
3230 size
= 8; bigendian
= 1;
3233 case R_IA64_DIR64LSB
:
3234 case R_IA64_GPREL64LSB
:
3235 case R_IA64_PLTOFF64LSB
:
3236 case R_IA64_FPTR64LSB
:
3237 case R_IA64_PCREL64LSB
:
3238 case R_IA64_LTOFF_FPTR64LSB
:
3239 case R_IA64_SEGREL64LSB
:
3240 case R_IA64_SECREL64LSB
:
3241 case R_IA64_LTV64LSB
:
3242 case R_IA64_TPREL64LSB
:
3243 case R_IA64_DTPMOD64LSB
:
3244 case R_IA64_DTPREL64LSB
:
3245 size
= 8; bigendian
= 0;
3248 /* Unsupported / Dynamic relocations. */
3250 return bfd_reloc_notsupported
;
3255 case IA64_OPND_IMMU64
:
3256 hit_addr
-= (long) hit_addr
& 0x3;
3257 t0
= bfd_get_64 (abfd
, hit_addr
);
3258 t1
= bfd_get_64 (abfd
, hit_addr
+ 8);
3260 /* tmpl/s: bits 0.. 5 in t0
3261 slot 0: bits 5..45 in t0
3262 slot 1: bits 46..63 in t0, bits 0..22 in t1
3263 slot 2: bits 23..63 in t1 */
3265 /* First, clear the bits that form the 64 bit constant. */
3266 t0
&= ~(0x3ffffLL
<< 46);
3268 | (( (0x07fLL
<< 13) | (0x1ffLL
<< 27)
3269 | (0x01fLL
<< 22) | (0x001LL
<< 21)
3270 | (0x001LL
<< 36)) << 23));
3272 t0
|= ((val
>> 22) & 0x03ffffLL
) << 46; /* 18 lsbs of imm41 */
3273 t1
|= ((val
>> 40) & 0x7fffffLL
) << 0; /* 23 msbs of imm41 */
3274 t1
|= ( (((val
>> 0) & 0x07f) << 13) /* imm7b */
3275 | (((val
>> 7) & 0x1ff) << 27) /* imm9d */
3276 | (((val
>> 16) & 0x01f) << 22) /* imm5c */
3277 | (((val
>> 21) & 0x001) << 21) /* ic */
3278 | (((val
>> 63) & 0x001) << 36)) << 23; /* i */
3280 bfd_put_64 (abfd
, t0
, hit_addr
);
3281 bfd_put_64 (abfd
, t1
, hit_addr
+ 8);
3284 case IA64_OPND_TGT64
:
3285 hit_addr
-= (long) hit_addr
& 0x3;
3286 t0
= bfd_get_64 (abfd
, hit_addr
);
3287 t1
= bfd_get_64 (abfd
, hit_addr
+ 8);
3289 /* tmpl/s: bits 0.. 5 in t0
3290 slot 0: bits 5..45 in t0
3291 slot 1: bits 46..63 in t0, bits 0..22 in t1
3292 slot 2: bits 23..63 in t1 */
3294 /* First, clear the bits that form the 64 bit constant. */
3295 t0
&= ~(0x3ffffLL
<< 46);
3297 | ((1LL << 36 | 0xfffffLL
<< 13) << 23));
3300 t0
|= ((val
>> 20) & 0xffffLL
) << 2 << 46; /* 16 lsbs of imm39 */
3301 t1
|= ((val
>> 36) & 0x7fffffLL
) << 0; /* 23 msbs of imm39 */
3302 t1
|= ((((val
>> 0) & 0xfffffLL
) << 13) /* imm20b */
3303 | (((val
>> 59) & 0x1LL
) << 36)) << 23; /* i */
3305 bfd_put_64 (abfd
, t0
, hit_addr
);
3306 bfd_put_64 (abfd
, t1
, hit_addr
+ 8);
3310 switch ((long) hit_addr
& 0x3)
3312 case 0: shift
= 5; break;
3313 case 1: shift
= 14; hit_addr
+= 3; break;
3314 case 2: shift
= 23; hit_addr
+= 6; break;
3315 case 3: return bfd_reloc_notsupported
; /* shouldn't happen... */
3317 dword
= bfd_get_64 (abfd
, hit_addr
);
3318 insn
= (dword
>> shift
) & 0x1ffffffffffLL
;
3320 op
= elf64_ia64_operands
+ opnd
;
3321 err
= (*op
->insert
) (op
, val
, (ia64_insn
*)& insn
);
3323 return bfd_reloc_overflow
;
3325 dword
&= ~(0x1ffffffffffLL
<< shift
);
3326 dword
|= (insn
<< shift
);
3327 bfd_put_64 (abfd
, dword
, hit_addr
);
3331 /* A data relocation. */
3334 bfd_putb32 (val
, hit_addr
);
3336 bfd_putb64 (val
, hit_addr
);
3339 bfd_putl32 (val
, hit_addr
);
3341 bfd_putl64 (val
, hit_addr
);
3345 return bfd_reloc_ok
;
3349 elfNN_ia64_install_dyn_reloc (abfd
, info
, sec
, srel
, offset
, type
,
3352 struct bfd_link_info
*info
;
3360 Elf_Internal_Rela outrel
;
3363 BFD_ASSERT (dynindx
!= -1);
3364 outrel
.r_info
= ELFNN_R_INFO (dynindx
, type
);
3365 outrel
.r_addend
= addend
;
3366 outrel
.r_offset
= _bfd_elf_section_offset (abfd
, info
, sec
, offset
);
3367 if (outrel
.r_offset
>= (bfd_vma
) -2)
3369 /* Run for the hills. We shouldn't be outputting a relocation
3370 for this. So do what everyone else does and output a no-op. */
3371 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
3372 outrel
.r_addend
= 0;
3373 outrel
.r_offset
= 0;
3376 outrel
.r_offset
+= sec
->output_section
->vma
+ sec
->output_offset
;
3378 loc
= srel
->contents
;
3379 loc
+= srel
->reloc_count
++ * sizeof (ElfNN_External_Rela
);
3380 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3381 BFD_ASSERT (sizeof (ElfNN_External_Rela
) * srel
->reloc_count
3382 <= srel
->_cooked_size
);
3385 /* Store an entry for target address TARGET_ADDR in the linkage table
3386 and return the gp-relative address of the linkage table entry. */
3389 set_got_entry (abfd
, info
, dyn_i
, dynindx
, addend
, value
, dyn_r_type
)
3391 struct bfd_link_info
*info
;
3392 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3396 unsigned int dyn_r_type
;
3398 struct elfNN_ia64_link_hash_table
*ia64_info
;
3403 ia64_info
= elfNN_ia64_hash_table (info
);
3404 got_sec
= ia64_info
->got_sec
;
3408 case R_IA64_TPREL64LSB
:
3409 done
= dyn_i
->tprel_done
;
3410 dyn_i
->tprel_done
= TRUE
;
3411 got_offset
= dyn_i
->tprel_offset
;
3413 case R_IA64_DTPMOD64LSB
:
3414 if (dyn_i
->dtpmod_offset
!= ia64_info
->self_dtpmod_offset
)
3416 done
= dyn_i
->dtpmod_done
;
3417 dyn_i
->dtpmod_done
= TRUE
;
3421 done
= ia64_info
->self_dtpmod_done
;
3422 ia64_info
->self_dtpmod_done
= TRUE
;
3425 got_offset
= dyn_i
->dtpmod_offset
;
3427 case R_IA64_DTPREL64LSB
:
3428 done
= dyn_i
->dtprel_done
;
3429 dyn_i
->dtprel_done
= TRUE
;
3430 got_offset
= dyn_i
->dtprel_offset
;
3433 done
= dyn_i
->got_done
;
3434 dyn_i
->got_done
= TRUE
;
3435 got_offset
= dyn_i
->got_offset
;
3439 BFD_ASSERT ((got_offset
& 7) == 0);
3443 /* Store the target address in the linkage table entry. */
3444 bfd_put_64 (abfd
, value
, got_sec
->contents
+ got_offset
);
3446 /* Install a dynamic relocation if needed. */
3449 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3450 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
3451 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3452 || elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, info
, dyn_r_type
)
3453 || (dynindx
!= -1 && dyn_r_type
== R_IA64_FPTR64LSB
))
3454 && (!dyn_i
->want_ltoff_fptr
3457 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3460 && dyn_r_type
!= R_IA64_TPREL64LSB
3461 && dyn_r_type
!= R_IA64_DTPMOD64LSB
3462 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3464 dyn_r_type
= R_IA64_REL64LSB
;
3469 if (bfd_big_endian (abfd
))
3473 case R_IA64_REL64LSB
:
3474 dyn_r_type
= R_IA64_REL64MSB
;
3476 case R_IA64_DIR64LSB
:
3477 dyn_r_type
= R_IA64_DIR64MSB
;
3479 case R_IA64_FPTR64LSB
:
3480 dyn_r_type
= R_IA64_FPTR64MSB
;
3482 case R_IA64_TPREL64LSB
:
3483 dyn_r_type
= R_IA64_TPREL64MSB
;
3485 case R_IA64_DTPMOD64LSB
:
3486 dyn_r_type
= R_IA64_DTPMOD64MSB
;
3488 case R_IA64_DTPREL64LSB
:
3489 dyn_r_type
= R_IA64_DTPREL64MSB
;
3497 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, got_sec
,
3498 ia64_info
->rel_got_sec
,
3499 got_offset
, dyn_r_type
,
3504 /* Return the address of the linkage table entry. */
3505 value
= (got_sec
->output_section
->vma
3506 + got_sec
->output_offset
3512 /* Fill in a function descriptor consisting of the function's code
3513 address and its global pointer. Return the descriptor's address. */
3516 set_fptr_entry (abfd
, info
, dyn_i
, value
)
3518 struct bfd_link_info
*info
;
3519 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3522 struct elfNN_ia64_link_hash_table
*ia64_info
;
3525 ia64_info
= elfNN_ia64_hash_table (info
);
3526 fptr_sec
= ia64_info
->fptr_sec
;
3528 if (!dyn_i
->fptr_done
)
3530 dyn_i
->fptr_done
= 1;
3532 /* Fill in the function descriptor. */
3533 bfd_put_64 (abfd
, value
, fptr_sec
->contents
+ dyn_i
->fptr_offset
);
3534 bfd_put_64 (abfd
, _bfd_get_gp_value (abfd
),
3535 fptr_sec
->contents
+ dyn_i
->fptr_offset
+ 8);
3536 if (ia64_info
->rel_fptr_sec
)
3538 Elf_Internal_Rela outrel
;
3541 if (bfd_little_endian (abfd
))
3542 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTLSB
);
3544 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTMSB
);
3545 outrel
.r_addend
= value
;
3546 outrel
.r_offset
= (fptr_sec
->output_section
->vma
3547 + fptr_sec
->output_offset
3548 + dyn_i
->fptr_offset
);
3549 loc
= ia64_info
->rel_fptr_sec
->contents
;
3550 loc
+= ia64_info
->rel_fptr_sec
->reloc_count
++
3551 * sizeof (ElfNN_External_Rela
);
3552 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3556 /* Return the descriptor's address. */
3557 value
= (fptr_sec
->output_section
->vma
3558 + fptr_sec
->output_offset
3559 + dyn_i
->fptr_offset
);
3564 /* Fill in a PLTOFF entry consisting of the function's code address
3565 and its global pointer. Return the descriptor's address. */
3568 set_pltoff_entry (abfd
, info
, dyn_i
, value
, is_plt
)
3570 struct bfd_link_info
*info
;
3571 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3575 struct elfNN_ia64_link_hash_table
*ia64_info
;
3576 asection
*pltoff_sec
;
3578 ia64_info
= elfNN_ia64_hash_table (info
);
3579 pltoff_sec
= ia64_info
->pltoff_sec
;
3581 /* Don't do anything if this symbol uses a real PLT entry. In
3582 that case, we'll fill this in during finish_dynamic_symbol. */
3583 if ((! dyn_i
->want_plt
|| is_plt
)
3584 && !dyn_i
->pltoff_done
)
3586 bfd_vma gp
= _bfd_get_gp_value (abfd
);
3588 /* Fill in the function descriptor. */
3589 bfd_put_64 (abfd
, value
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
);
3590 bfd_put_64 (abfd
, gp
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
+ 8);
3592 /* Install dynamic relocations if needed. */
3596 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3597 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3599 unsigned int dyn_r_type
;
3601 if (bfd_big_endian (abfd
))
3602 dyn_r_type
= R_IA64_REL64MSB
;
3604 dyn_r_type
= R_IA64_REL64LSB
;
3606 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3607 ia64_info
->rel_pltoff_sec
,
3608 dyn_i
->pltoff_offset
,
3609 dyn_r_type
, 0, value
);
3610 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3611 ia64_info
->rel_pltoff_sec
,
3612 dyn_i
->pltoff_offset
+ 8,
3616 dyn_i
->pltoff_done
= 1;
3619 /* Return the descriptor's address. */
3620 value
= (pltoff_sec
->output_section
->vma
3621 + pltoff_sec
->output_offset
3622 + dyn_i
->pltoff_offset
);
3627 /* Return the base VMA address which should be subtracted from real addresses
3628 when resolving @tprel() relocation.
3629 Main program TLS (whose template starts at PT_TLS p_vaddr)
3630 is assigned offset round(16, PT_TLS p_align). */
3633 elfNN_ia64_tprel_base (info
)
3634 struct bfd_link_info
*info
;
3636 asection
*tls_sec
= elf_hash_table (info
)->tls_sec
;
3638 BFD_ASSERT (tls_sec
!= NULL
);
3639 return tls_sec
->vma
- align_power ((bfd_vma
) 16, tls_sec
->alignment_power
);
3642 /* Return the base VMA address which should be subtracted from real addresses
3643 when resolving @dtprel() relocation.
3644 This is PT_TLS segment p_vaddr. */
3647 elfNN_ia64_dtprel_base (info
)
3648 struct bfd_link_info
*info
;
3650 BFD_ASSERT (elf_hash_table (info
)->tls_sec
!= NULL
);
3651 return elf_hash_table (info
)->tls_sec
->vma
;
3654 /* Called through qsort to sort the .IA_64.unwind section during a
3655 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3656 to the output bfd so we can do proper endianness frobbing. */
3658 static bfd
*elfNN_ia64_unwind_entry_compare_bfd
;
3661 elfNN_ia64_unwind_entry_compare (a
, b
)
3667 av
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, a
);
3668 bv
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, b
);
3670 return (av
< bv
? -1 : av
> bv
? 1 : 0);
3673 /* Make sure we've got ourselves a nice fat __gp value. */
3675 elfNN_ia64_choose_gp (abfd
, info
)
3677 struct bfd_link_info
*info
;
3679 bfd_vma min_vma
= (bfd_vma
) -1, max_vma
= 0;
3680 bfd_vma min_short_vma
= min_vma
, max_short_vma
= 0;
3681 struct elf_link_hash_entry
*gp
;
3684 struct elfNN_ia64_link_hash_table
*ia64_info
;
3686 ia64_info
= elfNN_ia64_hash_table (info
);
3688 /* Find the min and max vma of all sections marked short. Also collect
3689 min and max vma of any type, for use in selecting a nice gp. */
3690 for (os
= abfd
->sections
; os
; os
= os
->next
)
3694 if ((os
->flags
& SEC_ALLOC
) == 0)
3698 hi
= os
->vma
+ os
->_raw_size
;
3706 if (os
->flags
& SEC_SMALL_DATA
)
3708 if (min_short_vma
> lo
)
3710 if (max_short_vma
< hi
)
3715 /* See if the user wants to force a value. */
3716 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3720 && (gp
->root
.type
== bfd_link_hash_defined
3721 || gp
->root
.type
== bfd_link_hash_defweak
))
3723 asection
*gp_sec
= gp
->root
.u
.def
.section
;
3724 gp_val
= (gp
->root
.u
.def
.value
3725 + gp_sec
->output_section
->vma
3726 + gp_sec
->output_offset
);
3730 /* Pick a sensible value. */
3732 asection
*got_sec
= ia64_info
->got_sec
;
3734 /* Start with just the address of the .got. */
3736 gp_val
= got_sec
->output_section
->vma
;
3737 else if (max_short_vma
!= 0)
3738 gp_val
= min_short_vma
;
3742 /* If it is possible to address the entire image, but we
3743 don't with the choice above, adjust. */
3744 if (max_vma
- min_vma
< 0x400000
3745 && max_vma
- gp_val
<= 0x200000
3746 && gp_val
- min_vma
> 0x200000)
3747 gp_val
= min_vma
+ 0x200000;
3748 else if (max_short_vma
!= 0)
3750 /* If we don't cover all the short data, adjust. */
3751 if (max_short_vma
- gp_val
>= 0x200000)
3752 gp_val
= min_short_vma
+ 0x200000;
3754 /* If we're addressing stuff past the end, adjust back. */
3755 if (gp_val
> max_vma
)
3756 gp_val
= max_vma
- 0x200000 + 8;
3760 /* Validate whether all SHF_IA_64_SHORT sections are within
3761 range of the chosen GP. */
3763 if (max_short_vma
!= 0)
3765 if (max_short_vma
- min_short_vma
>= 0x400000)
3767 (*_bfd_error_handler
)
3768 (_("%s: short data segment overflowed (0x%lx >= 0x400000)"),
3769 bfd_get_filename (abfd
),
3770 (unsigned long) (max_short_vma
- min_short_vma
));
3773 else if ((gp_val
> min_short_vma
3774 && gp_val
- min_short_vma
> 0x200000)
3775 || (gp_val
< max_short_vma
3776 && max_short_vma
- gp_val
>= 0x200000))
3778 (*_bfd_error_handler
)
3779 (_("%s: __gp does not cover short data segment"),
3780 bfd_get_filename (abfd
));
3785 _bfd_set_gp_value (abfd
, gp_val
);
3791 elfNN_ia64_final_link (abfd
, info
)
3793 struct bfd_link_info
*info
;
3795 struct elfNN_ia64_link_hash_table
*ia64_info
;
3796 asection
*unwind_output_sec
;
3798 ia64_info
= elfNN_ia64_hash_table (info
);
3800 /* Make sure we've got ourselves a nice fat __gp value. */
3801 if (!info
->relocatable
)
3803 bfd_vma gp_val
= _bfd_get_gp_value (abfd
);
3804 struct elf_link_hash_entry
*gp
;
3808 if (! elfNN_ia64_choose_gp (abfd
, info
))
3810 gp_val
= _bfd_get_gp_value (abfd
);
3813 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3817 gp
->root
.type
= bfd_link_hash_defined
;
3818 gp
->root
.u
.def
.value
= gp_val
;
3819 gp
->root
.u
.def
.section
= bfd_abs_section_ptr
;
3823 /* If we're producing a final executable, we need to sort the contents
3824 of the .IA_64.unwind section. Force this section to be relocated
3825 into memory rather than written immediately to the output file. */
3826 unwind_output_sec
= NULL
;
3827 if (!info
->relocatable
)
3829 asection
*s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_unwind
);
3832 unwind_output_sec
= s
->output_section
;
3833 unwind_output_sec
->contents
3834 = bfd_malloc (unwind_output_sec
->_raw_size
);
3835 if (unwind_output_sec
->contents
== NULL
)
3840 /* Invoke the regular ELF backend linker to do all the work. */
3841 if (!bfd_elfNN_bfd_final_link (abfd
, info
))
3844 if (unwind_output_sec
)
3846 elfNN_ia64_unwind_entry_compare_bfd
= abfd
;
3847 qsort (unwind_output_sec
->contents
,
3848 (size_t) (unwind_output_sec
->_raw_size
/ 24),
3850 elfNN_ia64_unwind_entry_compare
);
3852 if (! bfd_set_section_contents (abfd
, unwind_output_sec
,
3853 unwind_output_sec
->contents
, (bfd_vma
) 0,
3854 unwind_output_sec
->_raw_size
))
3862 elfNN_ia64_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
3863 contents
, relocs
, local_syms
, local_sections
)
3865 struct bfd_link_info
*info
;
3867 asection
*input_section
;
3869 Elf_Internal_Rela
*relocs
;
3870 Elf_Internal_Sym
*local_syms
;
3871 asection
**local_sections
;
3873 struct elfNN_ia64_link_hash_table
*ia64_info
;
3874 Elf_Internal_Shdr
*symtab_hdr
;
3875 Elf_Internal_Rela
*rel
;
3876 Elf_Internal_Rela
*relend
;
3878 bfd_boolean ret_val
= TRUE
; /* for non-fatal errors */
3881 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3882 ia64_info
= elfNN_ia64_hash_table (info
);
3884 /* Infect various flags from the input section to the output section. */
3885 if (info
->relocatable
)
3889 flags
= elf_section_data(input_section
)->this_hdr
.sh_flags
;
3890 flags
&= SHF_IA_64_NORECOV
;
3892 elf_section_data(input_section
->output_section
)
3893 ->this_hdr
.sh_flags
|= flags
;
3897 gp_val
= _bfd_get_gp_value (output_bfd
);
3898 srel
= get_reloc_section (input_bfd
, ia64_info
, input_section
, FALSE
);
3901 relend
= relocs
+ input_section
->reloc_count
;
3902 for (; rel
< relend
; ++rel
)
3904 struct elf_link_hash_entry
*h
;
3905 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3906 bfd_reloc_status_type r
;
3907 reloc_howto_type
*howto
;
3908 unsigned long r_symndx
;
3909 Elf_Internal_Sym
*sym
;
3910 unsigned int r_type
;
3914 bfd_boolean dynamic_symbol_p
;
3915 bfd_boolean undef_weak_ref
;
3917 r_type
= ELFNN_R_TYPE (rel
->r_info
);
3918 if (r_type
> R_IA64_MAX_RELOC_CODE
)
3920 (*_bfd_error_handler
)
3921 (_("%s: unknown relocation type %d"),
3922 bfd_archive_filename (input_bfd
), (int)r_type
);
3923 bfd_set_error (bfd_error_bad_value
);
3928 howto
= lookup_howto (r_type
);
3929 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
3933 undef_weak_ref
= FALSE
;
3935 if (r_symndx
< symtab_hdr
->sh_info
)
3937 /* Reloc against local symbol. */
3939 sym
= local_syms
+ r_symndx
;
3940 sym_sec
= local_sections
[r_symndx
];
3942 value
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &msec
, rel
);
3943 if ((sym_sec
->flags
& SEC_MERGE
)
3944 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
3945 && sym_sec
->sec_info_type
== ELF_INFO_TYPE_MERGE
)
3947 struct elfNN_ia64_local_hash_entry
*loc_h
;
3949 loc_h
= get_local_sym_hash (ia64_info
, input_bfd
, rel
, FALSE
);
3950 if (loc_h
&& ! loc_h
->sec_merge_done
)
3952 struct elfNN_ia64_dyn_sym_info
*dynent
;
3954 for (dynent
= loc_h
->info
; dynent
; dynent
= dynent
->next
)
3958 _bfd_merged_section_offset (output_bfd
, &msec
,
3959 elf_section_data (msec
)->
3964 dynent
->addend
-= sym
->st_value
;
3965 dynent
->addend
+= msec
->output_section
->vma
3966 + msec
->output_offset
3967 - sym_sec
->output_section
->vma
3968 - sym_sec
->output_offset
;
3970 loc_h
->sec_merge_done
= 1;
3976 bfd_boolean unresolved_reloc
;
3978 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
3980 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
3981 r_symndx
, symtab_hdr
, sym_hashes
,
3983 unresolved_reloc
, warned
);
3985 if (h
->root
.type
== bfd_link_hash_undefweak
)
3986 undef_weak_ref
= TRUE
;
3991 hit_addr
= contents
+ rel
->r_offset
;
3992 value
+= rel
->r_addend
;
3993 dynamic_symbol_p
= elfNN_ia64_dynamic_symbol_p (h
, info
, r_type
);
4004 case R_IA64_DIR32MSB
:
4005 case R_IA64_DIR32LSB
:
4006 case R_IA64_DIR64MSB
:
4007 case R_IA64_DIR64LSB
:
4008 /* Install a dynamic relocation for this reloc. */
4009 if ((dynamic_symbol_p
|| info
->shared
)
4011 && (input_section
->flags
& SEC_ALLOC
) != 0)
4013 unsigned int dyn_r_type
;
4017 BFD_ASSERT (srel
!= NULL
);
4024 /* ??? People shouldn't be doing non-pic code in
4025 shared libraries nor dynamic executables. */
4026 (*_bfd_error_handler
)
4027 (_("%s: non-pic code with imm relocation against dynamic symbol `%s'"),
4028 bfd_archive_filename (input_bfd
),
4029 h
->root
.root
.string
);
4037 /* If we don't need dynamic symbol lookup, find a
4038 matching RELATIVE relocation. */
4039 dyn_r_type
= r_type
;
4040 if (dynamic_symbol_p
)
4042 dynindx
= h
->dynindx
;
4043 addend
= rel
->r_addend
;
4050 case R_IA64_DIR32MSB
:
4051 dyn_r_type
= R_IA64_REL32MSB
;
4053 case R_IA64_DIR32LSB
:
4054 dyn_r_type
= R_IA64_REL32LSB
;
4056 case R_IA64_DIR64MSB
:
4057 dyn_r_type
= R_IA64_REL64MSB
;
4059 case R_IA64_DIR64LSB
:
4060 dyn_r_type
= R_IA64_REL64LSB
;
4070 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4071 srel
, rel
->r_offset
, dyn_r_type
,
4076 case R_IA64_LTV32MSB
:
4077 case R_IA64_LTV32LSB
:
4078 case R_IA64_LTV64MSB
:
4079 case R_IA64_LTV64LSB
:
4080 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4083 case R_IA64_GPREL22
:
4084 case R_IA64_GPREL64I
:
4085 case R_IA64_GPREL32MSB
:
4086 case R_IA64_GPREL32LSB
:
4087 case R_IA64_GPREL64MSB
:
4088 case R_IA64_GPREL64LSB
:
4089 if (dynamic_symbol_p
)
4091 (*_bfd_error_handler
)
4092 (_("%s: @gprel relocation against dynamic symbol %s"),
4093 bfd_archive_filename (input_bfd
), h
->root
.root
.string
);
4098 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4101 case R_IA64_LTOFF22
:
4102 case R_IA64_LTOFF22X
:
4103 case R_IA64_LTOFF64I
:
4104 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4105 value
= set_got_entry (input_bfd
, info
, dyn_i
, (h
? h
->dynindx
: -1),
4106 rel
->r_addend
, value
, R_IA64_DIR64LSB
);
4108 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4111 case R_IA64_PLTOFF22
:
4112 case R_IA64_PLTOFF64I
:
4113 case R_IA64_PLTOFF64MSB
:
4114 case R_IA64_PLTOFF64LSB
:
4115 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4116 value
= set_pltoff_entry (output_bfd
, info
, dyn_i
, value
, FALSE
);
4118 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4121 case R_IA64_FPTR64I
:
4122 case R_IA64_FPTR32MSB
:
4123 case R_IA64_FPTR32LSB
:
4124 case R_IA64_FPTR64MSB
:
4125 case R_IA64_FPTR64LSB
:
4126 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4127 if (dyn_i
->want_fptr
)
4129 if (!undef_weak_ref
)
4130 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4132 if (!dyn_i
->want_fptr
|| info
->pie
)
4135 unsigned int dyn_r_type
= r_type
;
4136 bfd_vma addend
= rel
->r_addend
;
4138 /* Otherwise, we expect the dynamic linker to create
4141 if (dyn_i
->want_fptr
)
4143 if (r_type
== R_IA64_FPTR64I
)
4145 /* We can't represent this without a dynamic symbol.
4146 Adjust the relocation to be against an output
4147 section symbol, which are always present in the
4148 dynamic symbol table. */
4149 /* ??? People shouldn't be doing non-pic code in
4150 shared libraries. Hork. */
4151 (*_bfd_error_handler
)
4152 (_("%s: linking non-pic code in a position independent executable"),
4153 bfd_archive_filename (input_bfd
));
4159 dyn_r_type
= r_type
+ R_IA64_REL64LSB
- R_IA64_FPTR64LSB
;
4163 if (h
->dynindx
!= -1)
4164 dynindx
= h
->dynindx
;
4166 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4167 (info
, h
->root
.u
.def
.section
->owner
,
4168 global_sym_index (h
)));
4173 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4174 (info
, input_bfd
, (long) r_symndx
));
4178 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4179 srel
, rel
->r_offset
, dyn_r_type
,
4183 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4186 case R_IA64_LTOFF_FPTR22
:
4187 case R_IA64_LTOFF_FPTR64I
:
4188 case R_IA64_LTOFF_FPTR32MSB
:
4189 case R_IA64_LTOFF_FPTR32LSB
:
4190 case R_IA64_LTOFF_FPTR64MSB
:
4191 case R_IA64_LTOFF_FPTR64LSB
:
4195 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4196 if (dyn_i
->want_fptr
)
4198 BFD_ASSERT (h
== NULL
|| h
->dynindx
== -1)
4199 if (!undef_weak_ref
)
4200 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4205 /* Otherwise, we expect the dynamic linker to create
4209 if (h
->dynindx
!= -1)
4210 dynindx
= h
->dynindx
;
4212 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4213 (info
, h
->root
.u
.def
.section
->owner
,
4214 global_sym_index (h
)));
4217 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4218 (info
, input_bfd
, (long) r_symndx
));
4222 value
= set_got_entry (output_bfd
, info
, dyn_i
, dynindx
,
4223 rel
->r_addend
, value
, R_IA64_FPTR64LSB
);
4225 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4229 case R_IA64_PCREL32MSB
:
4230 case R_IA64_PCREL32LSB
:
4231 case R_IA64_PCREL64MSB
:
4232 case R_IA64_PCREL64LSB
:
4233 /* Install a dynamic relocation for this reloc. */
4234 if (dynamic_symbol_p
&& r_symndx
!= 0)
4236 BFD_ASSERT (srel
!= NULL
);
4238 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4239 srel
, rel
->r_offset
, r_type
,
4240 h
->dynindx
, rel
->r_addend
);
4244 case R_IA64_PCREL21B
:
4245 case R_IA64_PCREL60B
:
4246 /* We should have created a PLT entry for any dynamic symbol. */
4249 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4251 if (dyn_i
&& dyn_i
->want_plt2
)
4253 /* Should have caught this earlier. */
4254 BFD_ASSERT (rel
->r_addend
== 0);
4256 value
= (ia64_info
->plt_sec
->output_section
->vma
4257 + ia64_info
->plt_sec
->output_offset
4258 + dyn_i
->plt2_offset
);
4262 /* Since there's no PLT entry, Validate that this is
4264 BFD_ASSERT (undef_weak_ref
|| sym_sec
->output_section
!= NULL
);
4266 /* If the symbol is undef_weak, we shouldn't be trying
4267 to call it. There's every chance that we'd wind up
4268 with an out-of-range fixup here. Don't bother setting
4269 any value at all. */
4275 case R_IA64_PCREL21BI
:
4276 case R_IA64_PCREL21F
:
4277 case R_IA64_PCREL21M
:
4278 case R_IA64_PCREL22
:
4279 case R_IA64_PCREL64I
:
4280 /* The PCREL21BI reloc is specifically not intended for use with
4281 dynamic relocs. PCREL21F and PCREL21M are used for speculation
4282 fixup code, and thus probably ought not be dynamic. The
4283 PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4284 if (dynamic_symbol_p
)
4288 if (r_type
== R_IA64_PCREL21BI
)
4289 msg
= _("%s: @internal branch to dynamic symbol %s");
4290 else if (r_type
== R_IA64_PCREL21F
|| r_type
== R_IA64_PCREL21M
)
4291 msg
= _("%s: speculation fixup to dynamic symbol %s");
4293 msg
= _("%s: @pcrel relocation against dynamic symbol %s");
4294 (*_bfd_error_handler
) (msg
, bfd_archive_filename (input_bfd
),
4295 h
->root
.root
.string
);
4302 /* Make pc-relative. */
4303 value
-= (input_section
->output_section
->vma
4304 + input_section
->output_offset
4305 + rel
->r_offset
) & ~ (bfd_vma
) 0x3;
4306 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4309 case R_IA64_SEGREL32MSB
:
4310 case R_IA64_SEGREL32LSB
:
4311 case R_IA64_SEGREL64MSB
:
4312 case R_IA64_SEGREL64LSB
:
4315 /* If the input section was discarded from the output, then
4321 struct elf_segment_map
*m
;
4322 Elf_Internal_Phdr
*p
;
4324 /* Find the segment that contains the output_section. */
4325 for (m
= elf_tdata (output_bfd
)->segment_map
,
4326 p
= elf_tdata (output_bfd
)->phdr
;
4331 for (i
= m
->count
- 1; i
>= 0; i
--)
4332 if (m
->sections
[i
] == input_section
->output_section
)
4340 r
= bfd_reloc_notsupported
;
4344 /* The VMA of the segment is the vaddr of the associated
4346 if (value
> p
->p_vaddr
)
4347 value
-= p
->p_vaddr
;
4350 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
,
4356 case R_IA64_SECREL32MSB
:
4357 case R_IA64_SECREL32LSB
:
4358 case R_IA64_SECREL64MSB
:
4359 case R_IA64_SECREL64LSB
:
4360 /* Make output-section relative. */
4361 if (value
> input_section
->output_section
->vma
)
4362 value
-= input_section
->output_section
->vma
;
4365 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4368 case R_IA64_IPLTMSB
:
4369 case R_IA64_IPLTLSB
:
4370 /* Install a dynamic relocation for this reloc. */
4371 if ((dynamic_symbol_p
|| info
->shared
)
4372 && (input_section
->flags
& SEC_ALLOC
) != 0)
4374 BFD_ASSERT (srel
!= NULL
);
4376 /* If we don't need dynamic symbol lookup, install two
4377 RELATIVE relocations. */
4378 if (!dynamic_symbol_p
)
4380 unsigned int dyn_r_type
;
4382 if (r_type
== R_IA64_IPLTMSB
)
4383 dyn_r_type
= R_IA64_REL64MSB
;
4385 dyn_r_type
= R_IA64_REL64LSB
;
4387 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4389 srel
, rel
->r_offset
,
4390 dyn_r_type
, 0, value
);
4391 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4393 srel
, rel
->r_offset
+ 8,
4394 dyn_r_type
, 0, gp_val
);
4397 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4398 srel
, rel
->r_offset
, r_type
,
4399 h
->dynindx
, rel
->r_addend
);
4402 if (r_type
== R_IA64_IPLTMSB
)
4403 r_type
= R_IA64_DIR64MSB
;
4405 r_type
= R_IA64_DIR64LSB
;
4406 elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4407 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
+ 8, gp_val
,
4411 case R_IA64_TPREL14
:
4412 case R_IA64_TPREL22
:
4413 case R_IA64_TPREL64I
:
4414 value
-= elfNN_ia64_tprel_base (info
);
4415 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4418 case R_IA64_DTPREL14
:
4419 case R_IA64_DTPREL22
:
4420 case R_IA64_DTPREL64I
:
4421 case R_IA64_DTPREL64LSB
:
4422 case R_IA64_DTPREL64MSB
:
4423 value
-= elfNN_ia64_dtprel_base (info
);
4424 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4427 case R_IA64_LTOFF_TPREL22
:
4428 case R_IA64_LTOFF_DTPMOD22
:
4429 case R_IA64_LTOFF_DTPREL22
:
4432 long dynindx
= h
? h
->dynindx
: -1;
4433 bfd_vma r_addend
= rel
->r_addend
;
4438 case R_IA64_LTOFF_TPREL22
:
4439 if (!dynamic_symbol_p
)
4442 value
-= elfNN_ia64_tprel_base (info
);
4445 r_addend
+= value
- elfNN_ia64_dtprel_base (info
);
4449 got_r_type
= R_IA64_TPREL64LSB
;
4451 case R_IA64_LTOFF_DTPMOD22
:
4452 if (!dynamic_symbol_p
&& !info
->shared
)
4454 got_r_type
= R_IA64_DTPMOD64LSB
;
4456 case R_IA64_LTOFF_DTPREL22
:
4457 if (!dynamic_symbol_p
)
4458 value
-= elfNN_ia64_dtprel_base (info
);
4459 got_r_type
= R_IA64_DTPREL64LSB
;
4462 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4463 value
= set_got_entry (input_bfd
, info
, dyn_i
, dynindx
, r_addend
,
4466 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
,
4472 r
= bfd_reloc_notsupported
;
4481 case bfd_reloc_undefined
:
4482 /* This can happen for global table relative relocs if
4483 __gp is undefined. This is a panic situation so we
4484 don't try to continue. */
4485 (*info
->callbacks
->undefined_symbol
)
4486 (info
, "__gp", input_bfd
, input_section
, rel
->r_offset
, 1);
4489 case bfd_reloc_notsupported
:
4494 name
= h
->root
.root
.string
;
4497 name
= bfd_elf_string_from_elf_section (input_bfd
,
4498 symtab_hdr
->sh_link
,
4503 name
= bfd_section_name (input_bfd
, input_section
);
4505 if (!(*info
->callbacks
->warning
) (info
, _("unsupported reloc"),
4507 input_section
, rel
->r_offset
))
4513 case bfd_reloc_dangerous
:
4514 case bfd_reloc_outofrange
:
4515 case bfd_reloc_overflow
:
4521 name
= h
->root
.root
.string
;
4524 name
= bfd_elf_string_from_elf_section (input_bfd
,
4525 symtab_hdr
->sh_link
,
4530 name
= bfd_section_name (input_bfd
, input_section
);
4532 if (!(*info
->callbacks
->reloc_overflow
) (info
, name
,
4549 elfNN_ia64_finish_dynamic_symbol (output_bfd
, info
, h
, sym
)
4551 struct bfd_link_info
*info
;
4552 struct elf_link_hash_entry
*h
;
4553 Elf_Internal_Sym
*sym
;
4555 struct elfNN_ia64_link_hash_table
*ia64_info
;
4556 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
4558 ia64_info
= elfNN_ia64_hash_table (info
);
4559 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4561 /* Fill in the PLT data, if required. */
4562 if (dyn_i
&& dyn_i
->want_plt
)
4564 Elf_Internal_Rela outrel
;
4567 bfd_vma plt_addr
, pltoff_addr
, gp_val
, index
;
4569 gp_val
= _bfd_get_gp_value (output_bfd
);
4571 /* Initialize the minimal PLT entry. */
4573 index
= (dyn_i
->plt_offset
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
4574 plt_sec
= ia64_info
->plt_sec
;
4575 loc
= plt_sec
->contents
+ dyn_i
->plt_offset
;
4577 memcpy (loc
, plt_min_entry
, PLT_MIN_ENTRY_SIZE
);
4578 elfNN_ia64_install_value (output_bfd
, loc
, index
, R_IA64_IMM22
);
4579 elfNN_ia64_install_value (output_bfd
, loc
+2, -dyn_i
->plt_offset
,
4582 plt_addr
= (plt_sec
->output_section
->vma
4583 + plt_sec
->output_offset
4584 + dyn_i
->plt_offset
);
4585 pltoff_addr
= set_pltoff_entry (output_bfd
, info
, dyn_i
, plt_addr
, TRUE
);
4587 /* Initialize the FULL PLT entry, if needed. */
4588 if (dyn_i
->want_plt2
)
4590 loc
= plt_sec
->contents
+ dyn_i
->plt2_offset
;
4592 memcpy (loc
, plt_full_entry
, PLT_FULL_ENTRY_SIZE
);
4593 elfNN_ia64_install_value (output_bfd
, loc
, pltoff_addr
- gp_val
,
4596 /* Mark the symbol as undefined, rather than as defined in the
4597 plt section. Leave the value alone. */
4598 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4599 first place. But perhaps elflink.h did some for us. */
4600 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
4601 sym
->st_shndx
= SHN_UNDEF
;
4604 /* Create the dynamic relocation. */
4605 outrel
.r_offset
= pltoff_addr
;
4606 if (bfd_little_endian (output_bfd
))
4607 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTLSB
);
4609 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTMSB
);
4610 outrel
.r_addend
= 0;
4612 /* This is fun. In the .IA_64.pltoff section, we've got entries
4613 that correspond both to real PLT entries, and those that
4614 happened to resolve to local symbols but need to be created
4615 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4616 relocations for the real PLT should come at the end of the
4617 section, so that they can be indexed by plt entry at runtime.
4619 We emitted all of the relocations for the non-PLT @pltoff
4620 entries during relocate_section. So we can consider the
4621 existing sec->reloc_count to be the base of the array of
4624 loc
= ia64_info
->rel_pltoff_sec
->contents
;
4625 loc
+= ((ia64_info
->rel_pltoff_sec
->reloc_count
+ index
)
4626 * sizeof (ElfNN_External_Rela
));
4627 bfd_elfNN_swap_reloca_out (output_bfd
, &outrel
, loc
);
4630 /* Mark some specially defined symbols as absolute. */
4631 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
4632 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0
4633 || strcmp (h
->root
.root
.string
, "_PROCEDURE_LINKAGE_TABLE_") == 0)
4634 sym
->st_shndx
= SHN_ABS
;
4640 elfNN_ia64_finish_dynamic_sections (abfd
, info
)
4642 struct bfd_link_info
*info
;
4644 struct elfNN_ia64_link_hash_table
*ia64_info
;
4647 ia64_info
= elfNN_ia64_hash_table (info
);
4648 dynobj
= ia64_info
->root
.dynobj
;
4650 if (elf_hash_table (info
)->dynamic_sections_created
)
4652 ElfNN_External_Dyn
*dyncon
, *dynconend
;
4653 asection
*sdyn
, *sgotplt
;
4656 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
4657 sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
4658 BFD_ASSERT (sdyn
!= NULL
);
4659 dyncon
= (ElfNN_External_Dyn
*) sdyn
->contents
;
4660 dynconend
= (ElfNN_External_Dyn
*) (sdyn
->contents
+ sdyn
->_raw_size
);
4662 gp_val
= _bfd_get_gp_value (abfd
);
4664 for (; dyncon
< dynconend
; dyncon
++)
4666 Elf_Internal_Dyn dyn
;
4668 bfd_elfNN_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4673 dyn
.d_un
.d_ptr
= gp_val
;
4677 dyn
.d_un
.d_val
= (ia64_info
->minplt_entries
4678 * sizeof (ElfNN_External_Rela
));
4682 /* See the comment above in finish_dynamic_symbol. */
4683 dyn
.d_un
.d_ptr
= (ia64_info
->rel_pltoff_sec
->output_section
->vma
4684 + ia64_info
->rel_pltoff_sec
->output_offset
4685 + (ia64_info
->rel_pltoff_sec
->reloc_count
4686 * sizeof (ElfNN_External_Rela
)));
4689 case DT_IA_64_PLT_RESERVE
:
4690 dyn
.d_un
.d_ptr
= (sgotplt
->output_section
->vma
4691 + sgotplt
->output_offset
);
4695 /* Do not have RELASZ include JMPREL. This makes things
4696 easier on ld.so. This is not what the rest of BFD set up. */
4697 dyn
.d_un
.d_val
-= (ia64_info
->minplt_entries
4698 * sizeof (ElfNN_External_Rela
));
4702 bfd_elfNN_swap_dyn_out (abfd
, &dyn
, dyncon
);
4705 /* Initialize the PLT0 entry. */
4706 if (ia64_info
->plt_sec
)
4708 bfd_byte
*loc
= ia64_info
->plt_sec
->contents
;
4711 memcpy (loc
, plt_header
, PLT_HEADER_SIZE
);
4713 pltres
= (sgotplt
->output_section
->vma
4714 + sgotplt
->output_offset
4717 elfNN_ia64_install_value (abfd
, loc
+1, pltres
, R_IA64_GPREL22
);
4724 /* ELF file flag handling: */
4726 /* Function to keep IA-64 specific file flags. */
4728 elfNN_ia64_set_private_flags (abfd
, flags
)
4732 BFD_ASSERT (!elf_flags_init (abfd
)
4733 || elf_elfheader (abfd
)->e_flags
== flags
);
4735 elf_elfheader (abfd
)->e_flags
= flags
;
4736 elf_flags_init (abfd
) = TRUE
;
4740 /* Merge backend specific data from an object file to the output
4741 object file when linking. */
4743 elfNN_ia64_merge_private_bfd_data (ibfd
, obfd
)
4748 bfd_boolean ok
= TRUE
;
4750 /* Don't even pretend to support mixed-format linking. */
4751 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
4752 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
4755 in_flags
= elf_elfheader (ibfd
)->e_flags
;
4756 out_flags
= elf_elfheader (obfd
)->e_flags
;
4758 if (! elf_flags_init (obfd
))
4760 elf_flags_init (obfd
) = TRUE
;
4761 elf_elfheader (obfd
)->e_flags
= in_flags
;
4763 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
4764 && bfd_get_arch_info (obfd
)->the_default
)
4766 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
4767 bfd_get_mach (ibfd
));
4773 /* Check flag compatibility. */
4774 if (in_flags
== out_flags
)
4777 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4778 if (!(in_flags
& EF_IA_64_REDUCEDFP
) && (out_flags
& EF_IA_64_REDUCEDFP
))
4779 elf_elfheader (obfd
)->e_flags
&= ~EF_IA_64_REDUCEDFP
;
4781 if ((in_flags
& EF_IA_64_TRAPNIL
) != (out_flags
& EF_IA_64_TRAPNIL
))
4783 (*_bfd_error_handler
)
4784 (_("%s: linking trap-on-NULL-dereference with non-trapping files"),
4785 bfd_archive_filename (ibfd
));
4787 bfd_set_error (bfd_error_bad_value
);
4790 if ((in_flags
& EF_IA_64_BE
) != (out_flags
& EF_IA_64_BE
))
4792 (*_bfd_error_handler
)
4793 (_("%s: linking big-endian files with little-endian files"),
4794 bfd_archive_filename (ibfd
));
4796 bfd_set_error (bfd_error_bad_value
);
4799 if ((in_flags
& EF_IA_64_ABI64
) != (out_flags
& EF_IA_64_ABI64
))
4801 (*_bfd_error_handler
)
4802 (_("%s: linking 64-bit files with 32-bit files"),
4803 bfd_archive_filename (ibfd
));
4805 bfd_set_error (bfd_error_bad_value
);
4808 if ((in_flags
& EF_IA_64_CONS_GP
) != (out_flags
& EF_IA_64_CONS_GP
))
4810 (*_bfd_error_handler
)
4811 (_("%s: linking constant-gp files with non-constant-gp files"),
4812 bfd_archive_filename (ibfd
));
4814 bfd_set_error (bfd_error_bad_value
);
4817 if ((in_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
)
4818 != (out_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
))
4820 (*_bfd_error_handler
)
4821 (_("%s: linking auto-pic files with non-auto-pic files"),
4822 bfd_archive_filename (ibfd
));
4824 bfd_set_error (bfd_error_bad_value
);
4832 elfNN_ia64_print_private_bfd_data (abfd
, ptr
)
4836 FILE *file
= (FILE *) ptr
;
4837 flagword flags
= elf_elfheader (abfd
)->e_flags
;
4839 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
4841 fprintf (file
, "private flags = %s%s%s%s%s%s%s%s\n",
4842 (flags
& EF_IA_64_TRAPNIL
) ? "TRAPNIL, " : "",
4843 (flags
& EF_IA_64_EXT
) ? "EXT, " : "",
4844 (flags
& EF_IA_64_BE
) ? "BE, " : "LE, ",
4845 (flags
& EF_IA_64_REDUCEDFP
) ? "REDUCEDFP, " : "",
4846 (flags
& EF_IA_64_CONS_GP
) ? "CONS_GP, " : "",
4847 (flags
& EF_IA_64_NOFUNCDESC_CONS_GP
) ? "NOFUNCDESC_CONS_GP, " : "",
4848 (flags
& EF_IA_64_ABSOLUTE
) ? "ABSOLUTE, " : "",
4849 (flags
& EF_IA_64_ABI64
) ? "ABI64" : "ABI32");
4851 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
4855 static enum elf_reloc_type_class
4856 elfNN_ia64_reloc_type_class (rela
)
4857 const Elf_Internal_Rela
*rela
;
4859 switch ((int) ELFNN_R_TYPE (rela
->r_info
))
4861 case R_IA64_REL32MSB
:
4862 case R_IA64_REL32LSB
:
4863 case R_IA64_REL64MSB
:
4864 case R_IA64_REL64LSB
:
4865 return reloc_class_relative
;
4866 case R_IA64_IPLTMSB
:
4867 case R_IA64_IPLTLSB
:
4868 return reloc_class_plt
;
4870 return reloc_class_copy
;
4872 return reloc_class_normal
;
4876 static struct bfd_elf_special_section
const elfNN_ia64_special_sections
[]=
4878 { ".sbss", 5, -1, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4879 { ".sdata", 6, -1, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4880 { NULL
, 0, 0, 0, 0 }
4884 elfNN_ia64_hpux_vec (const bfd_target
*vec
)
4886 extern const bfd_target bfd_elfNN_ia64_hpux_big_vec
;
4887 return (vec
== & bfd_elfNN_ia64_hpux_big_vec
);
4891 elfNN_hpux_post_process_headers (abfd
, info
)
4893 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
4895 Elf_Internal_Ehdr
*i_ehdrp
= elf_elfheader (abfd
);
4897 i_ehdrp
->e_ident
[EI_OSABI
] = ELFOSABI_HPUX
;
4898 i_ehdrp
->e_ident
[EI_ABIVERSION
] = 1;
4902 elfNN_hpux_backend_section_from_bfd_section (abfd
, sec
, retval
)
4903 bfd
*abfd ATTRIBUTE_UNUSED
;
4907 if (bfd_is_com_section (sec
))
4909 *retval
= SHN_IA_64_ANSI_COMMON
;
4916 elfNN_hpux_backend_symbol_processing (bfd
*abfd ATTRIBUTE_UNUSED
,
4919 elf_symbol_type
*elfsym
= (elf_symbol_type
*) asym
;;
4921 switch (elfsym
->internal_elf_sym
.st_shndx
)
4923 case SHN_IA_64_ANSI_COMMON
:
4924 asym
->section
= bfd_com_section_ptr
;
4925 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
4926 asym
->flags
&= ~BSF_GLOBAL
;
4932 #define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
4933 #define TARGET_LITTLE_NAME "elfNN-ia64-little"
4934 #define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec
4935 #define TARGET_BIG_NAME "elfNN-ia64-big"
4936 #define ELF_ARCH bfd_arch_ia64
4937 #define ELF_MACHINE_CODE EM_IA_64
4938 #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
4939 #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
4940 #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
4942 #define elf_backend_section_from_shdr \
4943 elfNN_ia64_section_from_shdr
4944 #define elf_backend_section_flags \
4945 elfNN_ia64_section_flags
4946 #define elf_backend_fake_sections \
4947 elfNN_ia64_fake_sections
4948 #define elf_backend_final_write_processing \
4949 elfNN_ia64_final_write_processing
4950 #define elf_backend_add_symbol_hook \
4951 elfNN_ia64_add_symbol_hook
4952 #define elf_backend_additional_program_headers \
4953 elfNN_ia64_additional_program_headers
4954 #define elf_backend_modify_segment_map \
4955 elfNN_ia64_modify_segment_map
4956 #define elf_info_to_howto \
4957 elfNN_ia64_info_to_howto
4959 #define bfd_elfNN_bfd_reloc_type_lookup \
4960 elfNN_ia64_reloc_type_lookup
4961 #define bfd_elfNN_bfd_is_local_label_name \
4962 elfNN_ia64_is_local_label_name
4963 #define bfd_elfNN_bfd_relax_section \
4964 elfNN_ia64_relax_section
4966 /* Stuff for the BFD linker: */
4967 #define bfd_elfNN_bfd_link_hash_table_create \
4968 elfNN_ia64_hash_table_create
4969 #define bfd_elfNN_bfd_link_hash_table_free \
4970 elfNN_ia64_hash_table_free
4971 #define elf_backend_create_dynamic_sections \
4972 elfNN_ia64_create_dynamic_sections
4973 #define elf_backend_check_relocs \
4974 elfNN_ia64_check_relocs
4975 #define elf_backend_adjust_dynamic_symbol \
4976 elfNN_ia64_adjust_dynamic_symbol
4977 #define elf_backend_size_dynamic_sections \
4978 elfNN_ia64_size_dynamic_sections
4979 #define elf_backend_relocate_section \
4980 elfNN_ia64_relocate_section
4981 #define elf_backend_finish_dynamic_symbol \
4982 elfNN_ia64_finish_dynamic_symbol
4983 #define elf_backend_finish_dynamic_sections \
4984 elfNN_ia64_finish_dynamic_sections
4985 #define bfd_elfNN_bfd_final_link \
4986 elfNN_ia64_final_link
4988 #define bfd_elfNN_bfd_merge_private_bfd_data \
4989 elfNN_ia64_merge_private_bfd_data
4990 #define bfd_elfNN_bfd_set_private_flags \
4991 elfNN_ia64_set_private_flags
4992 #define bfd_elfNN_bfd_print_private_bfd_data \
4993 elfNN_ia64_print_private_bfd_data
4995 #define elf_backend_plt_readonly 1
4996 #define elf_backend_want_plt_sym 0
4997 #define elf_backend_plt_alignment 5
4998 #define elf_backend_got_header_size 0
4999 #define elf_backend_want_got_plt 1
5000 #define elf_backend_may_use_rel_p 1
5001 #define elf_backend_may_use_rela_p 1
5002 #define elf_backend_default_use_rela_p 1
5003 #define elf_backend_want_dynbss 0
5004 #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
5005 #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
5006 #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
5007 #define elf_backend_rela_normal 1
5008 #define elf_backend_special_sections elfNN_ia64_special_sections
5010 #include "elfNN-target.h"
5012 /* HPUX-specific vectors. */
5014 #undef TARGET_LITTLE_SYM
5015 #undef TARGET_LITTLE_NAME
5016 #undef TARGET_BIG_SYM
5017 #define TARGET_BIG_SYM bfd_elfNN_ia64_hpux_big_vec
5018 #undef TARGET_BIG_NAME
5019 #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
5021 /* These are HP-UX specific functions. */
5023 #undef elf_backend_post_process_headers
5024 #define elf_backend_post_process_headers elfNN_hpux_post_process_headers
5026 #undef elf_backend_section_from_bfd_section
5027 #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
5029 #undef elf_backend_symbol_processing
5030 #define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
5032 #undef elf_backend_want_p_paddr_set_to_zero
5033 #define elf_backend_want_p_paddr_set_to_zero 1
5035 #undef ELF_MAXPAGESIZE
5036 #define ELF_MAXPAGESIZE 0x1000 /* 1K */
5039 #define elfNN_bed elfNN_ia64_hpux_bed
5041 #include "elfNN-target.h"
5043 #undef elf_backend_want_p_paddr_set_to_zero