1 /* IA-64 support for 64-bit ELF
2 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
3 Free Software Foundation, Inc.
4 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
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_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
*, const 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_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
, "DTPMOD64MSB", 4, FALSE
, FALSE
),
449 IA64_HOWTO (R_IA64_DTPMOD64LSB
, "DTPMOD64LSB", 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_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_getl64 (hit_addr
);
686 t1
= bfd_getl64 (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_putl64 (t0
, hit_addr
);
704 bfd_putl64 (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 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
754 /* Load the relocations for this section. */
755 internal_relocs
= (_bfd_elf_link_read_relocs
756 (abfd
, sec
, (PTR
) NULL
, (Elf_Internal_Rela
*) NULL
,
757 link_info
->keep_memory
));
758 if (internal_relocs
== NULL
)
761 ia64_info
= elfNN_ia64_hash_table (link_info
);
762 irelend
= internal_relocs
+ sec
->reloc_count
;
764 /* Get the section contents. */
765 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
766 contents
= elf_section_data (sec
)->this_hdr
.contents
;
769 if (!bfd_malloc_and_get_section (abfd
, sec
, &contents
))
773 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
775 unsigned long r_type
= ELFNN_R_TYPE (irel
->r_info
);
776 bfd_vma symaddr
, reladdr
, trampoff
, toff
, roff
;
780 bfd_boolean is_branch
;
781 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
786 case R_IA64_PCREL21B
:
787 case R_IA64_PCREL21BI
:
788 case R_IA64_PCREL21M
:
789 case R_IA64_PCREL21F
:
790 /* In the finalize pass, all br relaxations are done. We can
792 if (!link_info
->need_relax_finalize
)
797 case R_IA64_PCREL60B
:
798 /* We can't optimize brl to br before the finalize pass since
799 br relaxations will increase the code size. Defer it to
800 the finalize pass. */
801 if (link_info
->need_relax_finalize
)
803 sec
->need_finalize_relax
= 1;
809 case R_IA64_LTOFF22X
:
811 /* We can't relax ldx/mov before the finalize pass since
812 br relaxations will increase the code size. Defer it to
813 the finalize pass. */
814 if (link_info
->need_relax_finalize
)
816 sec
->need_finalize_relax
= 1;
826 /* Get the value of the symbol referred to by the reloc. */
827 if (ELFNN_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
829 /* A local symbol. */
830 Elf_Internal_Sym
*isym
;
832 /* Read this BFD's local symbols. */
835 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
837 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
838 symtab_hdr
->sh_info
, 0,
844 isym
= isymbuf
+ ELFNN_R_SYM (irel
->r_info
);
845 if (isym
->st_shndx
== SHN_UNDEF
)
846 continue; /* We can't do anything with undefined symbols. */
847 else if (isym
->st_shndx
== SHN_ABS
)
848 tsec
= bfd_abs_section_ptr
;
849 else if (isym
->st_shndx
== SHN_COMMON
)
850 tsec
= bfd_com_section_ptr
;
851 else if (isym
->st_shndx
== SHN_IA_64_ANSI_COMMON
)
852 tsec
= bfd_com_section_ptr
;
854 tsec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
856 toff
= isym
->st_value
;
857 dyn_i
= get_dyn_sym_info (ia64_info
, NULL
, abfd
, irel
, FALSE
);
858 symtype
= ELF_ST_TYPE (isym
->st_info
);
863 struct elf_link_hash_entry
*h
;
865 indx
= ELFNN_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
866 h
= elf_sym_hashes (abfd
)[indx
];
867 BFD_ASSERT (h
!= NULL
);
869 while (h
->root
.type
== bfd_link_hash_indirect
870 || h
->root
.type
== bfd_link_hash_warning
)
871 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
873 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, irel
, FALSE
);
875 /* For branches to dynamic symbols, we're interested instead
876 in a branch to the PLT entry. */
877 if (is_branch
&& dyn_i
&& dyn_i
->want_plt2
)
879 /* Internal branches shouldn't be sent to the PLT.
880 Leave this for now and we'll give an error later. */
881 if (r_type
!= R_IA64_PCREL21B
)
884 tsec
= ia64_info
->plt_sec
;
885 toff
= dyn_i
->plt2_offset
;
886 BFD_ASSERT (irel
->r_addend
== 0);
889 /* Can't do anything else with dynamic symbols. */
890 else if (elfNN_ia64_dynamic_symbol_p (h
, link_info
, r_type
))
895 /* We can't do anything with undefined symbols. */
896 if (h
->root
.type
== bfd_link_hash_undefined
897 || h
->root
.type
== bfd_link_hash_undefweak
)
900 tsec
= h
->root
.u
.def
.section
;
901 toff
= h
->root
.u
.def
.value
;
907 if (tsec
->sec_info_type
== ELF_INFO_TYPE_MERGE
)
909 /* At this stage in linking, no SEC_MERGE symbol has been
910 adjusted, so all references to such symbols need to be
911 passed through _bfd_merged_section_offset. (Later, in
912 relocate_section, all SEC_MERGE symbols *except* for
913 section symbols have been adjusted.)
915 gas may reduce relocations against symbols in SEC_MERGE
916 sections to a relocation against the section symbol when
917 the original addend was zero. When the reloc is against
918 a section symbol we should include the addend in the
919 offset passed to _bfd_merged_section_offset, since the
920 location of interest is the original symbol. On the
921 other hand, an access to "sym+addend" where "sym" is not
922 a section symbol should not include the addend; Such an
923 access is presumed to be an offset from "sym"; The
924 location of interest is just "sym". */
925 if (symtype
== STT_SECTION
)
926 toff
+= irel
->r_addend
;
928 toff
= _bfd_merged_section_offset (abfd
, &tsec
,
929 elf_section_data (tsec
)->sec_info
,
932 if (symtype
!= STT_SECTION
)
933 toff
+= irel
->r_addend
;
936 toff
+= irel
->r_addend
;
938 symaddr
= tsec
->output_section
->vma
+ tsec
->output_offset
+ toff
;
940 roff
= irel
->r_offset
;
944 bfd_signed_vma offset
;
946 reladdr
= (sec
->output_section
->vma
948 + roff
) & (bfd_vma
) -4;
950 /* If the branch is in range, no need to do anything. */
951 if ((bfd_signed_vma
) (symaddr
- reladdr
) >= -0x1000000
952 && (bfd_signed_vma
) (symaddr
- reladdr
) <= 0x0FFFFF0)
954 /* If the 60-bit branch is in 21-bit range, optimize it. */
955 if (r_type
== R_IA64_PCREL60B
)
957 elfNN_ia64_relax_brl (contents
, roff
);
960 = ELF64_R_INFO (ELF64_R_SYM (irel
->r_info
),
963 /* If the original relocation offset points to slot
964 1, change it to slot 2. */
965 if ((irel
->r_offset
& 3) == 1)
971 else if (r_type
== R_IA64_PCREL60B
)
974 /* We can't put a trampoline in a .init/.fini section. Issue
976 if (strcmp (sec
->output_section
->name
, ".init") == 0
977 || strcmp (sec
->output_section
->name
, ".fini") == 0)
979 (*_bfd_error_handler
)
980 (_("%B: Can't relax br at 0x%lx in section `%A'. Please use brl or indirect branch."),
981 sec
->owner
, sec
, (unsigned long) roff
);
982 bfd_set_error (bfd_error_bad_value
);
986 /* If the branch and target are in the same section, you've
987 got one honking big section and we can't help you unless
988 you are branching backwards. You'll get an error message
990 if (tsec
== sec
&& toff
> roff
)
993 /* Look for an existing fixup to this address. */
994 for (f
= fixups
; f
; f
= f
->next
)
995 if (f
->tsec
== tsec
&& f
->toff
== toff
)
1000 /* Two alternatives: If it's a branch to a PLT entry, we can
1001 make a copy of the FULL_PLT entry. Otherwise, we'll have
1002 to use a `brl' insn to get where we're going. */
1006 if (tsec
== ia64_info
->plt_sec
)
1007 size
= sizeof (plt_full_entry
);
1009 size
= oor_branch_size
;
1011 /* Resize the current section to make room for the new branch. */
1012 trampoff
= (sec
->size
+ 15) & (bfd_vma
) -16;
1014 /* If trampoline is out of range, there is nothing we
1016 offset
= trampoff
- (roff
& (bfd_vma
) -4);
1017 if (offset
< -0x1000000 || offset
> 0x0FFFFF0)
1020 amt
= trampoff
+ size
;
1021 contents
= (bfd_byte
*) bfd_realloc (contents
, amt
);
1022 if (contents
== NULL
)
1026 if (tsec
== ia64_info
->plt_sec
)
1028 memcpy (contents
+ trampoff
, plt_full_entry
, size
);
1030 /* Hijack the old relocation for use as the PLTOFF reloc. */
1031 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1033 irel
->r_offset
= trampoff
;
1037 if (size
== sizeof (oor_ip
))
1039 memcpy (contents
+ trampoff
, oor_ip
, size
);
1040 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1042 irel
->r_addend
-= 16;
1043 irel
->r_offset
= trampoff
+ 2;
1047 memcpy (contents
+ trampoff
, oor_brl
, size
);
1048 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1050 irel
->r_offset
= trampoff
+ 2;
1055 /* Record the fixup so we don't do it again this section. */
1056 f
= (struct one_fixup
*)
1057 bfd_malloc ((bfd_size_type
) sizeof (*f
));
1061 f
->trampoff
= trampoff
;
1066 /* If trampoline is out of range, there is nothing we
1068 offset
= f
->trampoff
- (roff
& (bfd_vma
) -4);
1069 if (offset
< -0x1000000 || offset
> 0x0FFFFF0)
1072 /* Nop out the reloc, since we're finalizing things here. */
1073 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
1076 /* Fix up the existing branch to hit the trampoline. */
1077 if (elfNN_ia64_install_value (contents
+ roff
, offset
, r_type
)
1081 changed_contents
= TRUE
;
1082 changed_relocs
= TRUE
;
1089 bfd
*obfd
= sec
->output_section
->owner
;
1090 gp
= _bfd_get_gp_value (obfd
);
1093 if (!elfNN_ia64_choose_gp (obfd
, link_info
))
1095 gp
= _bfd_get_gp_value (obfd
);
1099 /* If the data is out of range, do nothing. */
1100 if ((bfd_signed_vma
) (symaddr
- gp
) >= 0x200000
1101 ||(bfd_signed_vma
) (symaddr
- gp
) < -0x200000)
1104 if (r_type
== R_IA64_LTOFF22X
)
1106 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1108 changed_relocs
= TRUE
;
1109 if (dyn_i
->want_gotx
)
1111 dyn_i
->want_gotx
= 0;
1112 changed_got
|= !dyn_i
->want_got
;
1117 elfNN_ia64_relax_ldxmov (contents
, roff
);
1118 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
1119 changed_contents
= TRUE
;
1120 changed_relocs
= TRUE
;
1125 /* ??? If we created fixups, this may push the code segment large
1126 enough that the data segment moves, which will change the GP.
1127 Reset the GP so that we re-calculate next round. We need to
1128 do this at the _beginning_ of the next round; now will not do. */
1130 /* Clean up and go home. */
1133 struct one_fixup
*f
= fixups
;
1134 fixups
= fixups
->next
;
1139 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
1141 if (! link_info
->keep_memory
)
1145 /* Cache the symbols for elf_link_input_bfd. */
1146 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
1150 if (contents
!= NULL
1151 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
1153 if (!changed_contents
&& !link_info
->keep_memory
)
1157 /* Cache the section contents for elf_link_input_bfd. */
1158 elf_section_data (sec
)->this_hdr
.contents
= contents
;
1162 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
1164 if (!changed_relocs
)
1165 free (internal_relocs
);
1167 elf_section_data (sec
)->relocs
= internal_relocs
;
1172 struct elfNN_ia64_allocate_data data
;
1173 data
.info
= link_info
;
1175 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
1177 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
1178 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
1179 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
1180 ia64_info
->got_sec
->size
= data
.ofs
;
1182 /* ??? Resize .rela.got too. */
1185 if (!link_info
->need_relax_finalize
)
1186 sec
->need_finalize_relax
= 0;
1188 *again
= changed_contents
|| changed_relocs
;
1192 if (isymbuf
!= NULL
&& (unsigned char *) isymbuf
!= symtab_hdr
->contents
)
1194 if (contents
!= NULL
1195 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
1197 if (internal_relocs
!= NULL
1198 && elf_section_data (sec
)->relocs
!= internal_relocs
)
1199 free (internal_relocs
);
1204 elfNN_ia64_relax_ldxmov (contents
, off
)
1209 bfd_vma dword
, insn
;
1211 switch ((int)off
& 0x3)
1213 case 0: shift
= 5; break;
1214 case 1: shift
= 14; off
+= 3; break;
1215 case 2: shift
= 23; off
+= 6; break;
1220 dword
= bfd_getl64 (contents
+ off
);
1221 insn
= (dword
>> shift
) & 0x1ffffffffffLL
;
1223 r1
= (insn
>> 6) & 127;
1224 r3
= (insn
>> 20) & 127;
1226 insn
= 0x8000000; /* nop */
1228 insn
= (insn
& 0x7f01fff) | 0x10800000000LL
; /* (qp) mov r1 = r3 */
1230 dword
&= ~(0x1ffffffffffLL
<< shift
);
1231 dword
|= (insn
<< shift
);
1232 bfd_putl64 (dword
, contents
+ off
);
1235 /* Return TRUE if NAME is an unwind table section name. */
1237 static inline bfd_boolean
1238 is_unwind_section_name (abfd
, name
)
1242 size_t len1
, len2
, len3
;
1244 if (elfNN_ia64_hpux_vec (abfd
->xvec
)
1245 && !strcmp (name
, ELF_STRING_ia64_unwind_hdr
))
1248 len1
= sizeof (ELF_STRING_ia64_unwind
) - 1;
1249 len2
= sizeof (ELF_STRING_ia64_unwind_info
) - 1;
1250 len3
= sizeof (ELF_STRING_ia64_unwind_once
) - 1;
1251 return ((strncmp (name
, ELF_STRING_ia64_unwind
, len1
) == 0
1252 && strncmp (name
, ELF_STRING_ia64_unwind_info
, len2
) != 0)
1253 || strncmp (name
, ELF_STRING_ia64_unwind_once
, len3
) == 0);
1256 /* Handle an IA-64 specific section when reading an object file. This
1257 is called when elfcode.h finds a section with an unknown type. */
1260 elfNN_ia64_section_from_shdr (abfd
, hdr
, name
)
1262 Elf_Internal_Shdr
*hdr
;
1267 /* There ought to be a place to keep ELF backend specific flags, but
1268 at the moment there isn't one. We just keep track of the
1269 sections by their name, instead. Fortunately, the ABI gives
1270 suggested names for all the MIPS specific sections, so we will
1271 probably get away with this. */
1272 switch (hdr
->sh_type
)
1274 case SHT_IA_64_UNWIND
:
1275 case SHT_IA_64_HP_OPT_ANOT
:
1279 if (strcmp (name
, ELF_STRING_ia64_archext
) != 0)
1287 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
))
1289 newsect
= hdr
->bfd_section
;
1294 /* Convert IA-64 specific section flags to bfd internal section flags. */
1296 /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
1300 elfNN_ia64_section_flags (flags
, hdr
)
1302 const Elf_Internal_Shdr
*hdr
;
1304 if (hdr
->sh_flags
& SHF_IA_64_SHORT
)
1305 *flags
|= SEC_SMALL_DATA
;
1310 /* Set the correct type for an IA-64 ELF section. We do this by the
1311 section name, which is a hack, but ought to work. */
1314 elfNN_ia64_fake_sections (abfd
, hdr
, sec
)
1315 bfd
*abfd ATTRIBUTE_UNUSED
;
1316 Elf_Internal_Shdr
*hdr
;
1319 register const char *name
;
1321 name
= bfd_get_section_name (abfd
, sec
);
1323 if (is_unwind_section_name (abfd
, name
))
1325 /* We don't have the sections numbered at this point, so sh_info
1326 is set later, in elfNN_ia64_final_write_processing. */
1327 hdr
->sh_type
= SHT_IA_64_UNWIND
;
1328 hdr
->sh_flags
|= SHF_LINK_ORDER
;
1330 else if (strcmp (name
, ELF_STRING_ia64_archext
) == 0)
1331 hdr
->sh_type
= SHT_IA_64_EXT
;
1332 else if (strcmp (name
, ".HP.opt_annot") == 0)
1333 hdr
->sh_type
= SHT_IA_64_HP_OPT_ANOT
;
1334 else if (strcmp (name
, ".reloc") == 0)
1335 /* This is an ugly, but unfortunately necessary hack that is
1336 needed when producing EFI binaries on IA-64. It tells
1337 elf.c:elf_fake_sections() not to consider ".reloc" as a section
1338 containing ELF relocation info. We need this hack in order to
1339 be able to generate ELF binaries that can be translated into
1340 EFI applications (which are essentially COFF objects). Those
1341 files contain a COFF ".reloc" section inside an ELFNN object,
1342 which would normally cause BFD to segfault because it would
1343 attempt to interpret this section as containing relocation
1344 entries for section "oc". With this hack enabled, ".reloc"
1345 will be treated as a normal data section, which will avoid the
1346 segfault. However, you won't be able to create an ELFNN binary
1347 with a section named "oc" that needs relocations, but that's
1348 the kind of ugly side-effects you get when detecting section
1349 types based on their names... In practice, this limitation is
1350 unlikely to bite. */
1351 hdr
->sh_type
= SHT_PROGBITS
;
1353 if (sec
->flags
& SEC_SMALL_DATA
)
1354 hdr
->sh_flags
|= SHF_IA_64_SHORT
;
1359 /* The final processing done just before writing out an IA-64 ELF
1363 elfNN_ia64_final_write_processing (abfd
, linker
)
1365 bfd_boolean linker ATTRIBUTE_UNUSED
;
1367 Elf_Internal_Shdr
*hdr
;
1370 for (s
= abfd
->sections
; s
; s
= s
->next
)
1372 hdr
= &elf_section_data (s
)->this_hdr
;
1373 switch (hdr
->sh_type
)
1375 case SHT_IA_64_UNWIND
:
1376 /* The IA-64 processor-specific ABI requires setting sh_link
1377 to the unwind section, whereas HP-UX requires sh_info to
1378 do so. For maximum compatibility, we'll set both for
1380 hdr
->sh_info
= hdr
->sh_link
;
1385 if (! elf_flags_init (abfd
))
1387 unsigned long flags
= 0;
1389 if (abfd
->xvec
->byteorder
== BFD_ENDIAN_BIG
)
1390 flags
|= EF_IA_64_BE
;
1391 if (bfd_get_mach (abfd
) == bfd_mach_ia64_elf64
)
1392 flags
|= EF_IA_64_ABI64
;
1394 elf_elfheader(abfd
)->e_flags
= flags
;
1395 elf_flags_init (abfd
) = TRUE
;
1399 /* Hook called by the linker routine which adds symbols from an object
1400 file. We use it to put .comm items in .sbss, and not .bss. */
1403 elfNN_ia64_add_symbol_hook (abfd
, info
, sym
, namep
, flagsp
, secp
, valp
)
1405 struct bfd_link_info
*info
;
1406 Elf_Internal_Sym
*sym
;
1407 const char **namep ATTRIBUTE_UNUSED
;
1408 flagword
*flagsp ATTRIBUTE_UNUSED
;
1412 if (sym
->st_shndx
== SHN_COMMON
1413 && !info
->relocatable
1414 && sym
->st_size
<= elf_gp_size (abfd
))
1416 /* Common symbols less than or equal to -G nn bytes are
1417 automatically put into .sbss. */
1419 asection
*scomm
= bfd_get_section_by_name (abfd
, ".scommon");
1423 scomm
= bfd_make_section (abfd
, ".scommon");
1425 || !bfd_set_section_flags (abfd
, scomm
, (SEC_ALLOC
1427 | SEC_LINKER_CREATED
)))
1432 *valp
= sym
->st_size
;
1438 /* Return the number of additional phdrs we will need. */
1441 elfNN_ia64_additional_program_headers (abfd
)
1447 /* See if we need a PT_IA_64_ARCHEXT segment. */
1448 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1449 if (s
&& (s
->flags
& SEC_LOAD
))
1452 /* Count how many PT_IA_64_UNWIND segments we need. */
1453 for (s
= abfd
->sections
; s
; s
= s
->next
)
1454 if (is_unwind_section_name (abfd
, s
->name
) && (s
->flags
& SEC_LOAD
))
1461 elfNN_ia64_modify_segment_map (abfd
, info
)
1463 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
1465 struct elf_segment_map
*m
, **pm
;
1466 Elf_Internal_Shdr
*hdr
;
1469 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1470 all PT_LOAD segments. */
1471 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1472 if (s
&& (s
->flags
& SEC_LOAD
))
1474 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1475 if (m
->p_type
== PT_IA_64_ARCHEXT
)
1479 m
= ((struct elf_segment_map
*)
1480 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1484 m
->p_type
= PT_IA_64_ARCHEXT
;
1488 /* We want to put it after the PHDR and INTERP segments. */
1489 pm
= &elf_tdata (abfd
)->segment_map
;
1491 && ((*pm
)->p_type
== PT_PHDR
1492 || (*pm
)->p_type
== PT_INTERP
))
1500 /* Install PT_IA_64_UNWIND segments, if needed. */
1501 for (s
= abfd
->sections
; s
; s
= s
->next
)
1503 hdr
= &elf_section_data (s
)->this_hdr
;
1504 if (hdr
->sh_type
!= SHT_IA_64_UNWIND
)
1507 if (s
&& (s
->flags
& SEC_LOAD
))
1509 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1510 if (m
->p_type
== PT_IA_64_UNWIND
)
1514 /* Look through all sections in the unwind segment
1515 for a match since there may be multiple sections
1517 for (i
= m
->count
- 1; i
>= 0; --i
)
1518 if (m
->sections
[i
] == s
)
1527 m
= ((struct elf_segment_map
*)
1528 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1532 m
->p_type
= PT_IA_64_UNWIND
;
1537 /* We want to put it last. */
1538 pm
= &elf_tdata (abfd
)->segment_map
;
1546 /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1547 the input sections for each output section in the segment and testing
1548 for SHF_IA_64_NORECOV on each. */
1549 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1550 if (m
->p_type
== PT_LOAD
)
1553 for (i
= m
->count
- 1; i
>= 0; --i
)
1555 struct bfd_link_order
*order
= m
->sections
[i
]->link_order_head
;
1558 if (order
->type
== bfd_indirect_link_order
)
1560 asection
*is
= order
->u
.indirect
.section
;
1561 bfd_vma flags
= elf_section_data(is
)->this_hdr
.sh_flags
;
1562 if (flags
& SHF_IA_64_NORECOV
)
1564 m
->p_flags
|= PF_IA_64_NORECOV
;
1568 order
= order
->next
;
1577 /* According to the Tahoe assembler spec, all labels starting with a
1581 elfNN_ia64_is_local_label_name (abfd
, name
)
1582 bfd
*abfd ATTRIBUTE_UNUSED
;
1585 return name
[0] == '.';
1588 /* Should we do dynamic things to this symbol? */
1591 elfNN_ia64_dynamic_symbol_p (h
, info
, r_type
)
1592 struct elf_link_hash_entry
*h
;
1593 struct bfd_link_info
*info
;
1596 bfd_boolean ignore_protected
1597 = ((r_type
& 0xf8) == 0x40 /* FPTR relocs */
1598 || (r_type
& 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1600 return _bfd_elf_dynamic_symbol_p (h
, info
, ignore_protected
);
1603 static struct bfd_hash_entry
*
1604 elfNN_ia64_new_elf_hash_entry (entry
, table
, string
)
1605 struct bfd_hash_entry
*entry
;
1606 struct bfd_hash_table
*table
;
1609 struct elfNN_ia64_link_hash_entry
*ret
;
1610 ret
= (struct elfNN_ia64_link_hash_entry
*) entry
;
1612 /* Allocate the structure if it has not already been allocated by a
1615 ret
= bfd_hash_allocate (table
, sizeof (*ret
));
1620 /* Call the allocation method of the superclass. */
1621 ret
= ((struct elfNN_ia64_link_hash_entry
*)
1622 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
1626 return (struct bfd_hash_entry
*) ret
;
1630 elfNN_ia64_hash_copy_indirect (bed
, xdir
, xind
)
1631 const struct elf_backend_data
*bed ATTRIBUTE_UNUSED
;
1632 struct elf_link_hash_entry
*xdir
, *xind
;
1634 struct elfNN_ia64_link_hash_entry
*dir
, *ind
;
1636 dir
= (struct elfNN_ia64_link_hash_entry
*) xdir
;
1637 ind
= (struct elfNN_ia64_link_hash_entry
*) xind
;
1639 /* Copy down any references that we may have already seen to the
1640 symbol which just became indirect. */
1642 dir
->root
.ref_dynamic
|= ind
->root
.ref_dynamic
;
1643 dir
->root
.ref_regular
|= ind
->root
.ref_regular
;
1644 dir
->root
.ref_regular_nonweak
|= ind
->root
.ref_regular_nonweak
;
1645 dir
->root
.needs_plt
|= ind
->root
.needs_plt
;
1647 if (ind
->root
.root
.type
!= bfd_link_hash_indirect
)
1650 /* Copy over the got and plt data. This would have been done
1653 if (dir
->info
== NULL
)
1655 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1657 dir
->info
= dyn_i
= ind
->info
;
1660 /* Fix up the dyn_sym_info pointers to the global symbol. */
1661 for (; dyn_i
; dyn_i
= dyn_i
->next
)
1662 dyn_i
->h
= &dir
->root
;
1664 BFD_ASSERT (ind
->info
== NULL
);
1666 /* Copy over the dynindx. */
1668 if (dir
->root
.dynindx
== -1)
1670 dir
->root
.dynindx
= ind
->root
.dynindx
;
1671 dir
->root
.dynstr_index
= ind
->root
.dynstr_index
;
1672 ind
->root
.dynindx
= -1;
1673 ind
->root
.dynstr_index
= 0;
1675 BFD_ASSERT (ind
->root
.dynindx
== -1);
1679 elfNN_ia64_hash_hide_symbol (info
, xh
, force_local
)
1680 struct bfd_link_info
*info
;
1681 struct elf_link_hash_entry
*xh
;
1682 bfd_boolean force_local
;
1684 struct elfNN_ia64_link_hash_entry
*h
;
1685 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1687 h
= (struct elfNN_ia64_link_hash_entry
*)xh
;
1689 _bfd_elf_link_hash_hide_symbol (info
, &h
->root
, force_local
);
1691 for (dyn_i
= h
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1693 dyn_i
->want_plt2
= 0;
1694 dyn_i
->want_plt
= 0;
1698 /* Compute a hash of a local hash entry. */
1701 elfNN_ia64_local_htab_hash (ptr
)
1704 struct elfNN_ia64_local_hash_entry
*entry
1705 = (struct elfNN_ia64_local_hash_entry
*) ptr
;
1707 return (((entry
->id
& 0xff) << 24) | ((entry
->id
& 0xff00) << 8))
1708 ^ entry
->r_sym
^ (entry
->id
>> 16);
1711 /* Compare local hash entries. */
1714 elfNN_ia64_local_htab_eq (ptr1
, ptr2
)
1715 const void *ptr1
, *ptr2
;
1717 struct elfNN_ia64_local_hash_entry
*entry1
1718 = (struct elfNN_ia64_local_hash_entry
*) ptr1
;
1719 struct elfNN_ia64_local_hash_entry
*entry2
1720 = (struct elfNN_ia64_local_hash_entry
*) ptr2
;
1722 return entry1
->id
== entry2
->id
&& entry1
->r_sym
== entry2
->r_sym
;
1725 /* Create the derived linker hash table. The IA-64 ELF port uses this
1726 derived hash table to keep information specific to the IA-64 ElF
1727 linker (without using static variables). */
1729 static struct bfd_link_hash_table
*
1730 elfNN_ia64_hash_table_create (abfd
)
1733 struct elfNN_ia64_link_hash_table
*ret
;
1735 ret
= bfd_zmalloc ((bfd_size_type
) sizeof (*ret
));
1739 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
1740 elfNN_ia64_new_elf_hash_entry
))
1746 ret
->loc_hash_table
= htab_try_create (1024, elfNN_ia64_local_htab_hash
,
1747 elfNN_ia64_local_htab_eq
, NULL
);
1748 ret
->loc_hash_memory
= objalloc_create ();
1749 if (!ret
->loc_hash_table
|| !ret
->loc_hash_memory
)
1755 return &ret
->root
.root
;
1758 /* Destroy IA-64 linker hash table. */
1761 elfNN_ia64_hash_table_free (hash
)
1762 struct bfd_link_hash_table
*hash
;
1764 struct elfNN_ia64_link_hash_table
*ia64_info
1765 = (struct elfNN_ia64_link_hash_table
*) hash
;
1766 if (ia64_info
->loc_hash_table
)
1767 htab_delete (ia64_info
->loc_hash_table
);
1768 if (ia64_info
->loc_hash_memory
)
1769 objalloc_free ((struct objalloc
*) ia64_info
->loc_hash_memory
);
1770 _bfd_generic_link_hash_table_free (hash
);
1773 /* Traverse both local and global hash tables. */
1775 struct elfNN_ia64_dyn_sym_traverse_data
1777 bfd_boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1782 elfNN_ia64_global_dyn_sym_thunk (xentry
, xdata
)
1783 struct bfd_hash_entry
*xentry
;
1786 struct elfNN_ia64_link_hash_entry
*entry
1787 = (struct elfNN_ia64_link_hash_entry
*) xentry
;
1788 struct elfNN_ia64_dyn_sym_traverse_data
*data
1789 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1790 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1792 if (entry
->root
.root
.type
== bfd_link_hash_warning
)
1793 entry
= (struct elfNN_ia64_link_hash_entry
*) entry
->root
.root
.u
.i
.link
;
1795 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1796 if (! (*data
->func
) (dyn_i
, data
->data
))
1802 elfNN_ia64_local_dyn_sym_thunk (slot
, xdata
)
1806 struct elfNN_ia64_local_hash_entry
*entry
1807 = (struct elfNN_ia64_local_hash_entry
*) *slot
;
1808 struct elfNN_ia64_dyn_sym_traverse_data
*data
1809 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1810 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1812 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1813 if (! (*data
->func
) (dyn_i
, data
->data
))
1819 elfNN_ia64_dyn_sym_traverse (ia64_info
, func
, data
)
1820 struct elfNN_ia64_link_hash_table
*ia64_info
;
1821 bfd_boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1824 struct elfNN_ia64_dyn_sym_traverse_data xdata
;
1829 elf_link_hash_traverse (&ia64_info
->root
,
1830 elfNN_ia64_global_dyn_sym_thunk
, &xdata
);
1831 htab_traverse (ia64_info
->loc_hash_table
,
1832 elfNN_ia64_local_dyn_sym_thunk
, &xdata
);
1836 elfNN_ia64_create_dynamic_sections (abfd
, info
)
1838 struct bfd_link_info
*info
;
1840 struct elfNN_ia64_link_hash_table
*ia64_info
;
1843 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
1846 ia64_info
= elfNN_ia64_hash_table (info
);
1848 ia64_info
->plt_sec
= bfd_get_section_by_name (abfd
, ".plt");
1849 ia64_info
->got_sec
= bfd_get_section_by_name (abfd
, ".got");
1852 flagword flags
= bfd_get_section_flags (abfd
, ia64_info
->got_sec
);
1853 bfd_set_section_flags (abfd
, ia64_info
->got_sec
, SEC_SMALL_DATA
| flags
);
1854 /* The .got section is always aligned at 8 bytes. */
1855 bfd_set_section_alignment (abfd
, ia64_info
->got_sec
, 3);
1858 if (!get_pltoff (abfd
, info
, ia64_info
))
1861 s
= bfd_make_section(abfd
, ".rela.IA_64.pltoff");
1863 || !bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1866 | SEC_LINKER_CREATED
1868 || !bfd_set_section_alignment (abfd
, s
, 3))
1870 ia64_info
->rel_pltoff_sec
= s
;
1872 s
= bfd_make_section(abfd
, ".rela.got");
1874 || !bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1877 | SEC_LINKER_CREATED
1879 || !bfd_set_section_alignment (abfd
, s
, 3))
1881 ia64_info
->rel_got_sec
= s
;
1886 /* Find and/or create a hash entry for local symbol. */
1887 static struct elfNN_ia64_local_hash_entry
*
1888 get_local_sym_hash (ia64_info
, abfd
, rel
, create
)
1889 struct elfNN_ia64_link_hash_table
*ia64_info
;
1891 const Elf_Internal_Rela
*rel
;
1894 struct elfNN_ia64_local_hash_entry e
, *ret
;
1895 asection
*sec
= abfd
->sections
;
1896 hashval_t h
= (((sec
->id
& 0xff) << 24) | ((sec
->id
& 0xff00) << 8))
1897 ^ ELFNN_R_SYM (rel
->r_info
) ^ (sec
->id
>> 16);
1901 e
.r_sym
= ELFNN_R_SYM (rel
->r_info
);
1902 slot
= htab_find_slot_with_hash (ia64_info
->loc_hash_table
, &e
, h
,
1903 create
? INSERT
: NO_INSERT
);
1909 return (struct elfNN_ia64_local_hash_entry
*) *slot
;
1911 ret
= (struct elfNN_ia64_local_hash_entry
*)
1912 objalloc_alloc ((struct objalloc
*) ia64_info
->loc_hash_memory
,
1913 sizeof (struct elfNN_ia64_local_hash_entry
));
1916 memset (ret
, 0, sizeof (*ret
));
1918 ret
->r_sym
= ELFNN_R_SYM (rel
->r_info
);
1924 /* Find and/or create a descriptor for dynamic symbol info. This will
1925 vary based on global or local symbol, and the addend to the reloc. */
1927 static struct elfNN_ia64_dyn_sym_info
*
1928 get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, create
)
1929 struct elfNN_ia64_link_hash_table
*ia64_info
;
1930 struct elf_link_hash_entry
*h
;
1932 const Elf_Internal_Rela
*rel
;
1935 struct elfNN_ia64_dyn_sym_info
**pp
;
1936 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1937 bfd_vma addend
= rel
? rel
->r_addend
: 0;
1940 pp
= &((struct elfNN_ia64_link_hash_entry
*)h
)->info
;
1943 struct elfNN_ia64_local_hash_entry
*loc_h
;
1945 loc_h
= get_local_sym_hash (ia64_info
, abfd
, rel
, create
);
1948 BFD_ASSERT (!create
);
1955 for (dyn_i
= *pp
; dyn_i
&& dyn_i
->addend
!= addend
; dyn_i
= *pp
)
1958 if (dyn_i
== NULL
&& create
)
1960 dyn_i
= ((struct elfNN_ia64_dyn_sym_info
*)
1961 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *dyn_i
));
1963 dyn_i
->addend
= addend
;
1970 get_got (abfd
, info
, ia64_info
)
1972 struct bfd_link_info
*info
;
1973 struct elfNN_ia64_link_hash_table
*ia64_info
;
1978 got
= ia64_info
->got_sec
;
1983 dynobj
= ia64_info
->root
.dynobj
;
1985 ia64_info
->root
.dynobj
= dynobj
= abfd
;
1986 if (!_bfd_elf_create_got_section (dynobj
, info
))
1989 got
= bfd_get_section_by_name (dynobj
, ".got");
1991 ia64_info
->got_sec
= got
;
1993 /* The .got section is always aligned at 8 bytes. */
1994 if (!bfd_set_section_alignment (abfd
, got
, 3))
1997 flags
= bfd_get_section_flags (abfd
, got
);
1998 bfd_set_section_flags (abfd
, got
, SEC_SMALL_DATA
| flags
);
2004 /* Create function descriptor section (.opd). This section is called .opd
2005 because it contains "official procedure descriptors". The "official"
2006 refers to the fact that these descriptors are used when taking the address
2007 of a procedure, thus ensuring a unique address for each procedure. */
2010 get_fptr (abfd
, info
, ia64_info
)
2012 struct bfd_link_info
*info
;
2013 struct elfNN_ia64_link_hash_table
*ia64_info
;
2018 fptr
= ia64_info
->fptr_sec
;
2021 dynobj
= ia64_info
->root
.dynobj
;
2023 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2025 fptr
= bfd_make_section (dynobj
, ".opd");
2027 || !bfd_set_section_flags (dynobj
, fptr
,
2032 | (info
->pie
? 0 : SEC_READONLY
)
2033 | SEC_LINKER_CREATED
))
2034 || !bfd_set_section_alignment (abfd
, fptr
, 4))
2040 ia64_info
->fptr_sec
= fptr
;
2045 fptr_rel
= bfd_make_section(dynobj
, ".rela.opd");
2046 if (fptr_rel
== NULL
2047 || !bfd_set_section_flags (dynobj
, fptr_rel
,
2048 (SEC_ALLOC
| SEC_LOAD
2051 | SEC_LINKER_CREATED
2053 || !bfd_set_section_alignment (abfd
, fptr_rel
, 3))
2059 ia64_info
->rel_fptr_sec
= fptr_rel
;
2067 get_pltoff (abfd
, info
, ia64_info
)
2069 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
2070 struct elfNN_ia64_link_hash_table
*ia64_info
;
2075 pltoff
= ia64_info
->pltoff_sec
;
2078 dynobj
= ia64_info
->root
.dynobj
;
2080 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2082 pltoff
= bfd_make_section (dynobj
, ELF_STRING_ia64_pltoff
);
2084 || !bfd_set_section_flags (dynobj
, pltoff
,
2090 | SEC_LINKER_CREATED
))
2091 || !bfd_set_section_alignment (abfd
, pltoff
, 4))
2097 ia64_info
->pltoff_sec
= pltoff
;
2104 get_reloc_section (abfd
, ia64_info
, sec
, create
)
2106 struct elfNN_ia64_link_hash_table
*ia64_info
;
2110 const char *srel_name
;
2114 srel_name
= (bfd_elf_string_from_elf_section
2115 (abfd
, elf_elfheader(abfd
)->e_shstrndx
,
2116 elf_section_data(sec
)->rel_hdr
.sh_name
));
2117 if (srel_name
== NULL
)
2120 BFD_ASSERT ((strncmp (srel_name
, ".rela", 5) == 0
2121 && strcmp (bfd_get_section_name (abfd
, sec
),
2123 || (strncmp (srel_name
, ".rel", 4) == 0
2124 && strcmp (bfd_get_section_name (abfd
, sec
),
2125 srel_name
+4) == 0));
2127 dynobj
= ia64_info
->root
.dynobj
;
2129 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2131 srel
= bfd_get_section_by_name (dynobj
, srel_name
);
2132 if (srel
== NULL
&& create
)
2134 srel
= bfd_make_section (dynobj
, srel_name
);
2136 || !bfd_set_section_flags (dynobj
, srel
,
2141 | SEC_LINKER_CREATED
2143 || !bfd_set_section_alignment (dynobj
, srel
, 3))
2151 count_dyn_reloc (bfd
*abfd
, struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2152 asection
*srel
, int type
, bfd_boolean reltext
)
2154 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2156 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2157 if (rent
->srel
== srel
&& rent
->type
== type
)
2162 rent
= ((struct elfNN_ia64_dyn_reloc_entry
*)
2163 bfd_alloc (abfd
, (bfd_size_type
) sizeof (*rent
)));
2167 rent
->next
= dyn_i
->reloc_entries
;
2171 dyn_i
->reloc_entries
= rent
;
2173 rent
->reltext
= reltext
;
2180 elfNN_ia64_check_relocs (abfd
, info
, sec
, relocs
)
2182 struct bfd_link_info
*info
;
2184 const Elf_Internal_Rela
*relocs
;
2186 struct elfNN_ia64_link_hash_table
*ia64_info
;
2187 const Elf_Internal_Rela
*relend
;
2188 Elf_Internal_Shdr
*symtab_hdr
;
2189 const Elf_Internal_Rela
*rel
;
2190 asection
*got
, *fptr
, *srel
, *pltoff
;
2192 if (info
->relocatable
)
2195 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
2196 ia64_info
= elfNN_ia64_hash_table (info
);
2198 got
= fptr
= srel
= pltoff
= NULL
;
2200 relend
= relocs
+ sec
->reloc_count
;
2201 for (rel
= relocs
; rel
< relend
; ++rel
)
2211 NEED_LTOFF_FPTR
= 128,
2217 struct elf_link_hash_entry
*h
= NULL
;
2218 unsigned long r_symndx
= ELFNN_R_SYM (rel
->r_info
);
2219 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2221 bfd_boolean maybe_dynamic
;
2222 int dynrel_type
= R_IA64_NONE
;
2224 if (r_symndx
>= symtab_hdr
->sh_info
)
2226 /* We're dealing with a global symbol -- find its hash entry
2227 and mark it as being referenced. */
2228 long indx
= r_symndx
- symtab_hdr
->sh_info
;
2229 h
= elf_sym_hashes (abfd
)[indx
];
2230 while (h
->root
.type
== bfd_link_hash_indirect
2231 || h
->root
.type
== bfd_link_hash_warning
)
2232 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2237 /* We can only get preliminary data on whether a symbol is
2238 locally or externally defined, as not all of the input files
2239 have yet been processed. Do something with what we know, as
2240 this may help reduce memory usage and processing time later. */
2241 maybe_dynamic
= FALSE
;
2242 if (h
&& ((!info
->executable
2244 || info
->unresolved_syms_in_shared_libs
== RM_IGNORE
))
2246 || h
->root
.type
== bfd_link_hash_defweak
))
2247 maybe_dynamic
= TRUE
;
2250 switch (ELFNN_R_TYPE (rel
->r_info
))
2252 case R_IA64_TPREL64MSB
:
2253 case R_IA64_TPREL64LSB
:
2254 if (info
->shared
|| maybe_dynamic
)
2255 need_entry
= NEED_DYNREL
;
2256 dynrel_type
= R_IA64_TPREL64LSB
;
2258 info
->flags
|= DF_STATIC_TLS
;
2261 case R_IA64_LTOFF_TPREL22
:
2262 need_entry
= NEED_TPREL
;
2264 info
->flags
|= DF_STATIC_TLS
;
2267 case R_IA64_DTPREL64MSB
:
2268 case R_IA64_DTPREL64LSB
:
2269 if (info
->shared
|| maybe_dynamic
)
2270 need_entry
= NEED_DYNREL
;
2271 dynrel_type
= R_IA64_DTPREL64LSB
;
2274 case R_IA64_LTOFF_DTPREL22
:
2275 need_entry
= NEED_DTPREL
;
2278 case R_IA64_DTPMOD64MSB
:
2279 case R_IA64_DTPMOD64LSB
:
2280 if (info
->shared
|| maybe_dynamic
)
2281 need_entry
= NEED_DYNREL
;
2282 dynrel_type
= R_IA64_DTPMOD64LSB
;
2285 case R_IA64_LTOFF_DTPMOD22
:
2286 need_entry
= NEED_DTPMOD
;
2289 case R_IA64_LTOFF_FPTR22
:
2290 case R_IA64_LTOFF_FPTR64I
:
2291 case R_IA64_LTOFF_FPTR32MSB
:
2292 case R_IA64_LTOFF_FPTR32LSB
:
2293 case R_IA64_LTOFF_FPTR64MSB
:
2294 case R_IA64_LTOFF_FPTR64LSB
:
2295 need_entry
= NEED_FPTR
| NEED_GOT
| NEED_LTOFF_FPTR
;
2298 case R_IA64_FPTR64I
:
2299 case R_IA64_FPTR32MSB
:
2300 case R_IA64_FPTR32LSB
:
2301 case R_IA64_FPTR64MSB
:
2302 case R_IA64_FPTR64LSB
:
2303 if (info
->shared
|| h
)
2304 need_entry
= NEED_FPTR
| NEED_DYNREL
;
2306 need_entry
= NEED_FPTR
;
2307 dynrel_type
= R_IA64_FPTR64LSB
;
2310 case R_IA64_LTOFF22
:
2311 case R_IA64_LTOFF64I
:
2312 need_entry
= NEED_GOT
;
2315 case R_IA64_LTOFF22X
:
2316 need_entry
= NEED_GOTX
;
2319 case R_IA64_PLTOFF22
:
2320 case R_IA64_PLTOFF64I
:
2321 case R_IA64_PLTOFF64MSB
:
2322 case R_IA64_PLTOFF64LSB
:
2323 need_entry
= NEED_PLTOFF
;
2327 need_entry
|= NEED_MIN_PLT
;
2331 (*info
->callbacks
->warning
)
2332 (info
, _("@pltoff reloc against local symbol"), 0,
2333 abfd
, 0, (bfd_vma
) 0);
2337 case R_IA64_PCREL21B
:
2338 case R_IA64_PCREL60B
:
2339 /* Depending on where this symbol is defined, we may or may not
2340 need a full plt entry. Only skip if we know we'll not need
2341 the entry -- static or symbolic, and the symbol definition
2342 has already been seen. */
2343 if (maybe_dynamic
&& rel
->r_addend
== 0)
2344 need_entry
= NEED_FULL_PLT
;
2350 case R_IA64_DIR32MSB
:
2351 case R_IA64_DIR32LSB
:
2352 case R_IA64_DIR64MSB
:
2353 case R_IA64_DIR64LSB
:
2354 /* Shared objects will always need at least a REL relocation. */
2355 if (info
->shared
|| maybe_dynamic
)
2356 need_entry
= NEED_DYNREL
;
2357 dynrel_type
= R_IA64_DIR64LSB
;
2360 case R_IA64_IPLTMSB
:
2361 case R_IA64_IPLTLSB
:
2362 /* Shared objects will always need at least a REL relocation. */
2363 if (info
->shared
|| maybe_dynamic
)
2364 need_entry
= NEED_DYNREL
;
2365 dynrel_type
= R_IA64_IPLTLSB
;
2368 case R_IA64_PCREL22
:
2369 case R_IA64_PCREL64I
:
2370 case R_IA64_PCREL32MSB
:
2371 case R_IA64_PCREL32LSB
:
2372 case R_IA64_PCREL64MSB
:
2373 case R_IA64_PCREL64LSB
:
2375 need_entry
= NEED_DYNREL
;
2376 dynrel_type
= R_IA64_PCREL64LSB
;
2383 if ((need_entry
& NEED_FPTR
) != 0
2386 (*info
->callbacks
->warning
)
2387 (info
, _("non-zero addend in @fptr reloc"), 0,
2388 abfd
, 0, (bfd_vma
) 0);
2391 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, TRUE
);
2393 /* Record whether or not this is a local symbol. */
2396 /* Create what's needed. */
2397 if (need_entry
& (NEED_GOT
| NEED_GOTX
| NEED_TPREL
2398 | NEED_DTPMOD
| NEED_DTPREL
))
2402 got
= get_got (abfd
, info
, ia64_info
);
2406 if (need_entry
& NEED_GOT
)
2407 dyn_i
->want_got
= 1;
2408 if (need_entry
& NEED_GOTX
)
2409 dyn_i
->want_gotx
= 1;
2410 if (need_entry
& NEED_TPREL
)
2411 dyn_i
->want_tprel
= 1;
2412 if (need_entry
& NEED_DTPMOD
)
2413 dyn_i
->want_dtpmod
= 1;
2414 if (need_entry
& NEED_DTPREL
)
2415 dyn_i
->want_dtprel
= 1;
2417 if (need_entry
& NEED_FPTR
)
2421 fptr
= get_fptr (abfd
, info
, ia64_info
);
2426 /* FPTRs for shared libraries are allocated by the dynamic
2427 linker. Make sure this local symbol will appear in the
2428 dynamic symbol table. */
2429 if (!h
&& info
->shared
)
2431 if (! (bfd_elf_link_record_local_dynamic_symbol
2432 (info
, abfd
, (long) r_symndx
)))
2436 dyn_i
->want_fptr
= 1;
2438 if (need_entry
& NEED_LTOFF_FPTR
)
2439 dyn_i
->want_ltoff_fptr
= 1;
2440 if (need_entry
& (NEED_MIN_PLT
| NEED_FULL_PLT
))
2442 if (!ia64_info
->root
.dynobj
)
2443 ia64_info
->root
.dynobj
= abfd
;
2445 dyn_i
->want_plt
= 1;
2447 if (need_entry
& NEED_FULL_PLT
)
2448 dyn_i
->want_plt2
= 1;
2449 if (need_entry
& NEED_PLTOFF
)
2451 /* This is needed here, in case @pltoff is used in a non-shared
2455 pltoff
= get_pltoff (abfd
, info
, ia64_info
);
2460 dyn_i
->want_pltoff
= 1;
2462 if ((need_entry
& NEED_DYNREL
) && (sec
->flags
& SEC_ALLOC
))
2466 srel
= get_reloc_section (abfd
, ia64_info
, sec
, TRUE
);
2470 if (!count_dyn_reloc (abfd
, dyn_i
, srel
, dynrel_type
,
2471 (sec
->flags
& SEC_READONLY
) != 0))
2479 /* For cleanliness, and potentially faster dynamic loading, allocate
2480 external GOT entries first. */
2483 allocate_global_data_got (dyn_i
, data
)
2484 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2487 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2489 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2490 && ! dyn_i
->want_fptr
2491 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2493 dyn_i
->got_offset
= x
->ofs
;
2496 if (dyn_i
->want_tprel
)
2498 dyn_i
->tprel_offset
= x
->ofs
;
2501 if (dyn_i
->want_dtpmod
)
2503 if (elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2505 dyn_i
->dtpmod_offset
= x
->ofs
;
2510 struct elfNN_ia64_link_hash_table
*ia64_info
;
2512 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2513 if (ia64_info
->self_dtpmod_offset
== (bfd_vma
) -1)
2515 ia64_info
->self_dtpmod_offset
= x
->ofs
;
2518 dyn_i
->dtpmod_offset
= ia64_info
->self_dtpmod_offset
;
2521 if (dyn_i
->want_dtprel
)
2523 dyn_i
->dtprel_offset
= x
->ofs
;
2529 /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2532 allocate_global_fptr_got (dyn_i
, data
)
2533 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2536 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2540 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, R_IA64_FPTR64LSB
))
2542 dyn_i
->got_offset
= x
->ofs
;
2548 /* Lastly, allocate all the GOT entries for local data. */
2551 allocate_local_got (dyn_i
, data
)
2552 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2555 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2557 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2558 && !elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2560 dyn_i
->got_offset
= x
->ofs
;
2566 /* Search for the index of a global symbol in it's defining object file. */
2569 global_sym_index (h
)
2570 struct elf_link_hash_entry
*h
;
2572 struct elf_link_hash_entry
**p
;
2575 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
2576 || h
->root
.type
== bfd_link_hash_defweak
);
2578 obj
= h
->root
.u
.def
.section
->owner
;
2579 for (p
= elf_sym_hashes (obj
); *p
!= h
; ++p
)
2582 return p
- elf_sym_hashes (obj
) + elf_tdata (obj
)->symtab_hdr
.sh_info
;
2585 /* Allocate function descriptors. We can do these for every function
2586 in a main executable that is not exported. */
2589 allocate_fptr (dyn_i
, data
)
2590 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2593 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2595 if (dyn_i
->want_fptr
)
2597 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2600 while (h
->root
.type
== bfd_link_hash_indirect
2601 || h
->root
.type
== bfd_link_hash_warning
)
2602 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2604 if (!x
->info
->executable
2606 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2607 || h
->root
.type
!= bfd_link_hash_undefweak
))
2609 if (h
&& h
->dynindx
== -1)
2611 BFD_ASSERT ((h
->root
.type
== bfd_link_hash_defined
)
2612 || (h
->root
.type
== bfd_link_hash_defweak
));
2614 if (!bfd_elf_link_record_local_dynamic_symbol
2615 (x
->info
, h
->root
.u
.def
.section
->owner
,
2616 global_sym_index (h
)))
2620 dyn_i
->want_fptr
= 0;
2622 else if (h
== NULL
|| h
->dynindx
== -1)
2624 dyn_i
->fptr_offset
= x
->ofs
;
2628 dyn_i
->want_fptr
= 0;
2633 /* Allocate all the minimal PLT entries. */
2636 allocate_plt_entries (dyn_i
, data
)
2637 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2640 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2642 if (dyn_i
->want_plt
)
2644 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2647 while (h
->root
.type
== bfd_link_hash_indirect
2648 || h
->root
.type
== bfd_link_hash_warning
)
2649 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2651 /* ??? Versioned symbols seem to lose NEEDS_PLT. */
2652 if (elfNN_ia64_dynamic_symbol_p (h
, x
->info
, 0))
2654 bfd_size_type offset
= x
->ofs
;
2656 offset
= PLT_HEADER_SIZE
;
2657 dyn_i
->plt_offset
= offset
;
2658 x
->ofs
= offset
+ PLT_MIN_ENTRY_SIZE
;
2660 dyn_i
->want_pltoff
= 1;
2664 dyn_i
->want_plt
= 0;
2665 dyn_i
->want_plt2
= 0;
2671 /* Allocate all the full PLT entries. */
2674 allocate_plt2_entries (dyn_i
, data
)
2675 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2678 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2680 if (dyn_i
->want_plt2
)
2682 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2683 bfd_size_type ofs
= x
->ofs
;
2685 dyn_i
->plt2_offset
= ofs
;
2686 x
->ofs
= ofs
+ PLT_FULL_ENTRY_SIZE
;
2688 while (h
->root
.type
== bfd_link_hash_indirect
2689 || h
->root
.type
== bfd_link_hash_warning
)
2690 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2691 dyn_i
->h
->plt
.offset
= ofs
;
2696 /* Allocate all the PLTOFF entries requested by relocations and
2697 plt entries. We can't share space with allocated FPTR entries,
2698 because the latter are not necessarily addressable by the GP.
2699 ??? Relaxation might be able to determine that they are. */
2702 allocate_pltoff_entries (dyn_i
, data
)
2703 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2706 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2708 if (dyn_i
->want_pltoff
)
2710 dyn_i
->pltoff_offset
= x
->ofs
;
2716 /* Allocate dynamic relocations for those symbols that turned out
2720 allocate_dynrel_entries (dyn_i
, data
)
2721 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2724 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2725 struct elfNN_ia64_link_hash_table
*ia64_info
;
2726 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2727 bfd_boolean dynamic_symbol
, shared
, resolved_zero
;
2729 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2731 /* Note that this can't be used in relation to FPTR relocs below. */
2732 dynamic_symbol
= elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0);
2734 shared
= x
->info
->shared
;
2735 resolved_zero
= (dyn_i
->h
2736 && ELF_ST_VISIBILITY (dyn_i
->h
->other
)
2737 && dyn_i
->h
->root
.type
== bfd_link_hash_undefweak
);
2739 /* Take care of the normal data relocations. */
2741 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2743 int count
= rent
->count
;
2747 case R_IA64_FPTR64LSB
:
2748 /* Allocate one iff !want_fptr and not PIE, which by this point
2749 will be true only if we're actually allocating one statically
2750 in the main executable. Position independent executables
2751 need a relative reloc. */
2752 if (dyn_i
->want_fptr
&& !x
->info
->pie
)
2755 case R_IA64_PCREL64LSB
:
2756 if (!dynamic_symbol
)
2759 case R_IA64_DIR64LSB
:
2760 if (!dynamic_symbol
&& !shared
)
2763 case R_IA64_IPLTLSB
:
2764 if (!dynamic_symbol
&& !shared
)
2766 /* Use two REL relocations for IPLT relocations
2767 against local symbols. */
2768 if (!dynamic_symbol
)
2771 case R_IA64_TPREL64LSB
:
2772 case R_IA64_DTPREL64LSB
:
2773 case R_IA64_DTPMOD64LSB
:
2779 ia64_info
->reltext
= 1;
2780 rent
->srel
->size
+= sizeof (ElfNN_External_Rela
) * count
;
2783 /* Take care of the GOT and PLT relocations. */
2786 && (dynamic_symbol
|| shared
)
2787 && (dyn_i
->want_got
|| dyn_i
->want_gotx
))
2788 || (dyn_i
->want_ltoff_fptr
2790 && dyn_i
->h
->dynindx
!= -1))
2792 if (!dyn_i
->want_ltoff_fptr
2795 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2796 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2798 if ((dynamic_symbol
|| shared
) && dyn_i
->want_tprel
)
2799 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2800 if (dynamic_symbol
&& dyn_i
->want_dtpmod
)
2801 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2802 if (dynamic_symbol
&& dyn_i
->want_dtprel
)
2803 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2804 if (ia64_info
->rel_fptr_sec
&& dyn_i
->want_fptr
)
2806 if (dyn_i
->h
== NULL
|| dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2807 ia64_info
->rel_fptr_sec
->size
+= sizeof (ElfNN_External_Rela
);
2810 if (!resolved_zero
&& dyn_i
->want_pltoff
)
2812 bfd_size_type t
= 0;
2814 /* Dynamic symbols get one IPLT relocation. Local symbols in
2815 shared libraries get two REL relocations. Local symbols in
2816 main applications get nothing. */
2818 t
= sizeof (ElfNN_External_Rela
);
2820 t
= 2 * sizeof (ElfNN_External_Rela
);
2822 ia64_info
->rel_pltoff_sec
->size
+= t
;
2829 elfNN_ia64_adjust_dynamic_symbol (info
, h
)
2830 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
2831 struct elf_link_hash_entry
*h
;
2833 /* ??? Undefined symbols with PLT entries should be re-defined
2834 to be the PLT entry. */
2836 /* If this is a weak symbol, and there is a real definition, the
2837 processor independent code will have arranged for us to see the
2838 real definition first, and we can just use the same value. */
2839 if (h
->u
.weakdef
!= NULL
)
2841 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
2842 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
2843 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
2844 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
2848 /* If this is a reference to a symbol defined by a dynamic object which
2849 is not a function, we might allocate the symbol in our .dynbss section
2850 and allocate a COPY dynamic relocation.
2852 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
2859 elfNN_ia64_size_dynamic_sections (output_bfd
, info
)
2860 bfd
*output_bfd ATTRIBUTE_UNUSED
;
2861 struct bfd_link_info
*info
;
2863 struct elfNN_ia64_allocate_data data
;
2864 struct elfNN_ia64_link_hash_table
*ia64_info
;
2867 bfd_boolean relplt
= FALSE
;
2869 dynobj
= elf_hash_table(info
)->dynobj
;
2870 ia64_info
= elfNN_ia64_hash_table (info
);
2871 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
2872 BFD_ASSERT(dynobj
!= NULL
);
2875 /* Set the contents of the .interp section to the interpreter. */
2876 if (ia64_info
->root
.dynamic_sections_created
2877 && info
->executable
)
2879 sec
= bfd_get_section_by_name (dynobj
, ".interp");
2880 BFD_ASSERT (sec
!= NULL
);
2881 sec
->contents
= (bfd_byte
*) ELF_DYNAMIC_INTERPRETER
;
2882 sec
->size
= strlen (ELF_DYNAMIC_INTERPRETER
) + 1;
2885 /* Allocate the GOT entries. */
2887 if (ia64_info
->got_sec
)
2890 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
2891 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
2892 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
2893 ia64_info
->got_sec
->size
= data
.ofs
;
2896 /* Allocate the FPTR entries. */
2898 if (ia64_info
->fptr_sec
)
2901 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_fptr
, &data
);
2902 ia64_info
->fptr_sec
->size
= data
.ofs
;
2905 /* Now that we've seen all of the input files, we can decide which
2906 symbols need plt entries. Allocate the minimal PLT entries first.
2907 We do this even though dynamic_sections_created may be FALSE, because
2908 this has the side-effect of clearing want_plt and want_plt2. */
2911 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt_entries
, &data
);
2913 ia64_info
->minplt_entries
= 0;
2916 ia64_info
->minplt_entries
2917 = (data
.ofs
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
2920 /* Align the pointer for the plt2 entries. */
2921 data
.ofs
= (data
.ofs
+ 31) & (bfd_vma
) -32;
2923 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt2_entries
, &data
);
2924 if (data
.ofs
!= 0 || ia64_info
->root
.dynamic_sections_created
)
2926 /* FIXME: we always reserve the memory for dynamic linker even if
2927 there are no PLT entries since dynamic linker may assume the
2928 reserved memory always exists. */
2930 BFD_ASSERT (ia64_info
->root
.dynamic_sections_created
);
2932 ia64_info
->plt_sec
->size
= data
.ofs
;
2934 /* If we've got a .plt, we need some extra memory for the dynamic
2935 linker. We stuff these in .got.plt. */
2936 sec
= bfd_get_section_by_name (dynobj
, ".got.plt");
2937 sec
->size
= 8 * PLT_RESERVED_WORDS
;
2940 /* Allocate the PLTOFF entries. */
2942 if (ia64_info
->pltoff_sec
)
2945 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_pltoff_entries
, &data
);
2946 ia64_info
->pltoff_sec
->size
= data
.ofs
;
2949 if (ia64_info
->root
.dynamic_sections_created
)
2951 /* Allocate space for the dynamic relocations that turned out to be
2954 if (info
->shared
&& ia64_info
->self_dtpmod_offset
!= (bfd_vma
) -1)
2955 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2956 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_dynrel_entries
, &data
);
2959 /* We have now determined the sizes of the various dynamic sections.
2960 Allocate memory for them. */
2961 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
2965 if (!(sec
->flags
& SEC_LINKER_CREATED
))
2968 /* If we don't need this section, strip it from the output file.
2969 There were several sections primarily related to dynamic
2970 linking that must be create before the linker maps input
2971 sections to output sections. The linker does that before
2972 bfd_elf_size_dynamic_sections is called, and it is that
2973 function which decides whether anything needs to go into
2976 strip
= (sec
->size
== 0);
2978 if (sec
== ia64_info
->got_sec
)
2980 else if (sec
== ia64_info
->rel_got_sec
)
2983 ia64_info
->rel_got_sec
= NULL
;
2985 /* We use the reloc_count field as a counter if we need to
2986 copy relocs into the output file. */
2987 sec
->reloc_count
= 0;
2989 else if (sec
== ia64_info
->fptr_sec
)
2992 ia64_info
->fptr_sec
= NULL
;
2994 else if (sec
== ia64_info
->rel_fptr_sec
)
2997 ia64_info
->rel_fptr_sec
= NULL
;
2999 /* We use the reloc_count field as a counter if we need to
3000 copy relocs into the output file. */
3001 sec
->reloc_count
= 0;
3003 else if (sec
== ia64_info
->plt_sec
)
3006 ia64_info
->plt_sec
= NULL
;
3008 else if (sec
== ia64_info
->pltoff_sec
)
3011 ia64_info
->pltoff_sec
= NULL
;
3013 else if (sec
== ia64_info
->rel_pltoff_sec
)
3016 ia64_info
->rel_pltoff_sec
= NULL
;
3020 /* We use the reloc_count field as a counter if we need to
3021 copy relocs into the output file. */
3022 sec
->reloc_count
= 0;
3029 /* It's OK to base decisions on the section name, because none
3030 of the dynobj section names depend upon the input files. */
3031 name
= bfd_get_section_name (dynobj
, sec
);
3033 if (strcmp (name
, ".got.plt") == 0)
3035 else if (strncmp (name
, ".rel", 4) == 0)
3039 /* We use the reloc_count field as a counter if we need to
3040 copy relocs into the output file. */
3041 sec
->reloc_count
= 0;
3049 _bfd_strip_section_from_output (info
, sec
);
3052 /* Allocate memory for the section contents. */
3053 sec
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, sec
->size
);
3054 if (sec
->contents
== NULL
&& sec
->size
!= 0)
3059 if (elf_hash_table (info
)->dynamic_sections_created
)
3061 /* Add some entries to the .dynamic section. We fill in the values
3062 later (in finish_dynamic_sections) but we must add the entries now
3063 so that we get the correct size for the .dynamic section. */
3065 if (info
->executable
)
3067 /* The DT_DEBUG entry is filled in by the dynamic linker and used
3069 #define add_dynamic_entry(TAG, VAL) \
3070 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3072 if (!add_dynamic_entry (DT_DEBUG
, 0))
3076 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE
, 0))
3078 if (!add_dynamic_entry (DT_PLTGOT
, 0))
3083 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
3084 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3085 || !add_dynamic_entry (DT_JMPREL
, 0))
3089 if (!add_dynamic_entry (DT_RELA
, 0)
3090 || !add_dynamic_entry (DT_RELASZ
, 0)
3091 || !add_dynamic_entry (DT_RELAENT
, sizeof (ElfNN_External_Rela
)))
3094 if (ia64_info
->reltext
)
3096 if (!add_dynamic_entry (DT_TEXTREL
, 0))
3098 info
->flags
|= DF_TEXTREL
;
3102 /* ??? Perhaps force __gp local. */
3107 static bfd_reloc_status_type
3108 elfNN_ia64_install_value (hit_addr
, v
, r_type
)
3111 unsigned int r_type
;
3113 const struct ia64_operand
*op
;
3114 int bigendian
= 0, shift
= 0;
3115 bfd_vma t0
, t1
, insn
, dword
;
3116 enum ia64_opnd opnd
;
3119 #ifdef BFD_HOST_U_64_BIT
3120 BFD_HOST_U_64_BIT val
= (BFD_HOST_U_64_BIT
) v
;
3125 opnd
= IA64_OPND_NIL
;
3130 return bfd_reloc_ok
;
3132 /* Instruction relocations. */
3135 case R_IA64_TPREL14
:
3136 case R_IA64_DTPREL14
:
3137 opnd
= IA64_OPND_IMM14
;
3140 case R_IA64_PCREL21F
: opnd
= IA64_OPND_TGT25
; break;
3141 case R_IA64_PCREL21M
: opnd
= IA64_OPND_TGT25b
; break;
3142 case R_IA64_PCREL60B
: opnd
= IA64_OPND_TGT64
; break;
3143 case R_IA64_PCREL21B
:
3144 case R_IA64_PCREL21BI
:
3145 opnd
= IA64_OPND_TGT25c
;
3149 case R_IA64_GPREL22
:
3150 case R_IA64_LTOFF22
:
3151 case R_IA64_LTOFF22X
:
3152 case R_IA64_PLTOFF22
:
3153 case R_IA64_PCREL22
:
3154 case R_IA64_LTOFF_FPTR22
:
3155 case R_IA64_TPREL22
:
3156 case R_IA64_DTPREL22
:
3157 case R_IA64_LTOFF_TPREL22
:
3158 case R_IA64_LTOFF_DTPMOD22
:
3159 case R_IA64_LTOFF_DTPREL22
:
3160 opnd
= IA64_OPND_IMM22
;
3164 case R_IA64_GPREL64I
:
3165 case R_IA64_LTOFF64I
:
3166 case R_IA64_PLTOFF64I
:
3167 case R_IA64_PCREL64I
:
3168 case R_IA64_FPTR64I
:
3169 case R_IA64_LTOFF_FPTR64I
:
3170 case R_IA64_TPREL64I
:
3171 case R_IA64_DTPREL64I
:
3172 opnd
= IA64_OPND_IMMU64
;
3175 /* Data relocations. */
3177 case R_IA64_DIR32MSB
:
3178 case R_IA64_GPREL32MSB
:
3179 case R_IA64_FPTR32MSB
:
3180 case R_IA64_PCREL32MSB
:
3181 case R_IA64_LTOFF_FPTR32MSB
:
3182 case R_IA64_SEGREL32MSB
:
3183 case R_IA64_SECREL32MSB
:
3184 case R_IA64_LTV32MSB
:
3185 case R_IA64_DTPREL32MSB
:
3186 size
= 4; bigendian
= 1;
3189 case R_IA64_DIR32LSB
:
3190 case R_IA64_GPREL32LSB
:
3191 case R_IA64_FPTR32LSB
:
3192 case R_IA64_PCREL32LSB
:
3193 case R_IA64_LTOFF_FPTR32LSB
:
3194 case R_IA64_SEGREL32LSB
:
3195 case R_IA64_SECREL32LSB
:
3196 case R_IA64_LTV32LSB
:
3197 case R_IA64_DTPREL32LSB
:
3198 size
= 4; bigendian
= 0;
3201 case R_IA64_DIR64MSB
:
3202 case R_IA64_GPREL64MSB
:
3203 case R_IA64_PLTOFF64MSB
:
3204 case R_IA64_FPTR64MSB
:
3205 case R_IA64_PCREL64MSB
:
3206 case R_IA64_LTOFF_FPTR64MSB
:
3207 case R_IA64_SEGREL64MSB
:
3208 case R_IA64_SECREL64MSB
:
3209 case R_IA64_LTV64MSB
:
3210 case R_IA64_TPREL64MSB
:
3211 case R_IA64_DTPMOD64MSB
:
3212 case R_IA64_DTPREL64MSB
:
3213 size
= 8; bigendian
= 1;
3216 case R_IA64_DIR64LSB
:
3217 case R_IA64_GPREL64LSB
:
3218 case R_IA64_PLTOFF64LSB
:
3219 case R_IA64_FPTR64LSB
:
3220 case R_IA64_PCREL64LSB
:
3221 case R_IA64_LTOFF_FPTR64LSB
:
3222 case R_IA64_SEGREL64LSB
:
3223 case R_IA64_SECREL64LSB
:
3224 case R_IA64_LTV64LSB
:
3225 case R_IA64_TPREL64LSB
:
3226 case R_IA64_DTPMOD64LSB
:
3227 case R_IA64_DTPREL64LSB
:
3228 size
= 8; bigendian
= 0;
3231 /* Unsupported / Dynamic relocations. */
3233 return bfd_reloc_notsupported
;
3238 case IA64_OPND_IMMU64
:
3239 hit_addr
-= (long) hit_addr
& 0x3;
3240 t0
= bfd_getl64 (hit_addr
);
3241 t1
= bfd_getl64 (hit_addr
+ 8);
3243 /* tmpl/s: bits 0.. 5 in t0
3244 slot 0: bits 5..45 in t0
3245 slot 1: bits 46..63 in t0, bits 0..22 in t1
3246 slot 2: bits 23..63 in t1 */
3248 /* First, clear the bits that form the 64 bit constant. */
3249 t0
&= ~(0x3ffffLL
<< 46);
3251 | (( (0x07fLL
<< 13) | (0x1ffLL
<< 27)
3252 | (0x01fLL
<< 22) | (0x001LL
<< 21)
3253 | (0x001LL
<< 36)) << 23));
3255 t0
|= ((val
>> 22) & 0x03ffffLL
) << 46; /* 18 lsbs of imm41 */
3256 t1
|= ((val
>> 40) & 0x7fffffLL
) << 0; /* 23 msbs of imm41 */
3257 t1
|= ( (((val
>> 0) & 0x07f) << 13) /* imm7b */
3258 | (((val
>> 7) & 0x1ff) << 27) /* imm9d */
3259 | (((val
>> 16) & 0x01f) << 22) /* imm5c */
3260 | (((val
>> 21) & 0x001) << 21) /* ic */
3261 | (((val
>> 63) & 0x001) << 36)) << 23; /* i */
3263 bfd_putl64 (t0
, hit_addr
);
3264 bfd_putl64 (t1
, hit_addr
+ 8);
3267 case IA64_OPND_TGT64
:
3268 hit_addr
-= (long) hit_addr
& 0x3;
3269 t0
= bfd_getl64 (hit_addr
);
3270 t1
= bfd_getl64 (hit_addr
+ 8);
3272 /* tmpl/s: bits 0.. 5 in t0
3273 slot 0: bits 5..45 in t0
3274 slot 1: bits 46..63 in t0, bits 0..22 in t1
3275 slot 2: bits 23..63 in t1 */
3277 /* First, clear the bits that form the 64 bit constant. */
3278 t0
&= ~(0x3ffffLL
<< 46);
3280 | ((1LL << 36 | 0xfffffLL
<< 13) << 23));
3283 t0
|= ((val
>> 20) & 0xffffLL
) << 2 << 46; /* 16 lsbs of imm39 */
3284 t1
|= ((val
>> 36) & 0x7fffffLL
) << 0; /* 23 msbs of imm39 */
3285 t1
|= ((((val
>> 0) & 0xfffffLL
) << 13) /* imm20b */
3286 | (((val
>> 59) & 0x1LL
) << 36)) << 23; /* i */
3288 bfd_putl64 (t0
, hit_addr
);
3289 bfd_putl64 (t1
, hit_addr
+ 8);
3293 switch ((long) hit_addr
& 0x3)
3295 case 0: shift
= 5; break;
3296 case 1: shift
= 14; hit_addr
+= 3; break;
3297 case 2: shift
= 23; hit_addr
+= 6; break;
3298 case 3: return bfd_reloc_notsupported
; /* shouldn't happen... */
3300 dword
= bfd_getl64 (hit_addr
);
3301 insn
= (dword
>> shift
) & 0x1ffffffffffLL
;
3303 op
= elf64_ia64_operands
+ opnd
;
3304 err
= (*op
->insert
) (op
, val
, (ia64_insn
*)& insn
);
3306 return bfd_reloc_overflow
;
3308 dword
&= ~(0x1ffffffffffLL
<< shift
);
3309 dword
|= (insn
<< shift
);
3310 bfd_putl64 (dword
, hit_addr
);
3314 /* A data relocation. */
3317 bfd_putb32 (val
, hit_addr
);
3319 bfd_putb64 (val
, hit_addr
);
3322 bfd_putl32 (val
, hit_addr
);
3324 bfd_putl64 (val
, hit_addr
);
3328 return bfd_reloc_ok
;
3332 elfNN_ia64_install_dyn_reloc (abfd
, info
, sec
, srel
, offset
, type
,
3335 struct bfd_link_info
*info
;
3343 Elf_Internal_Rela outrel
;
3346 BFD_ASSERT (dynindx
!= -1);
3347 outrel
.r_info
= ELFNN_R_INFO (dynindx
, type
);
3348 outrel
.r_addend
= addend
;
3349 outrel
.r_offset
= _bfd_elf_section_offset (abfd
, info
, sec
, offset
);
3350 if (outrel
.r_offset
>= (bfd_vma
) -2)
3352 /* Run for the hills. We shouldn't be outputting a relocation
3353 for this. So do what everyone else does and output a no-op. */
3354 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
3355 outrel
.r_addend
= 0;
3356 outrel
.r_offset
= 0;
3359 outrel
.r_offset
+= sec
->output_section
->vma
+ sec
->output_offset
;
3361 loc
= srel
->contents
;
3362 loc
+= srel
->reloc_count
++ * sizeof (ElfNN_External_Rela
);
3363 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3364 BFD_ASSERT (sizeof (ElfNN_External_Rela
) * srel
->reloc_count
<= srel
->size
);
3367 /* Store an entry for target address TARGET_ADDR in the linkage table
3368 and return the gp-relative address of the linkage table entry. */
3371 set_got_entry (abfd
, info
, dyn_i
, dynindx
, addend
, value
, dyn_r_type
)
3373 struct bfd_link_info
*info
;
3374 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3378 unsigned int dyn_r_type
;
3380 struct elfNN_ia64_link_hash_table
*ia64_info
;
3385 ia64_info
= elfNN_ia64_hash_table (info
);
3386 got_sec
= ia64_info
->got_sec
;
3390 case R_IA64_TPREL64LSB
:
3391 done
= dyn_i
->tprel_done
;
3392 dyn_i
->tprel_done
= TRUE
;
3393 got_offset
= dyn_i
->tprel_offset
;
3395 case R_IA64_DTPMOD64LSB
:
3396 if (dyn_i
->dtpmod_offset
!= ia64_info
->self_dtpmod_offset
)
3398 done
= dyn_i
->dtpmod_done
;
3399 dyn_i
->dtpmod_done
= TRUE
;
3403 done
= ia64_info
->self_dtpmod_done
;
3404 ia64_info
->self_dtpmod_done
= TRUE
;
3407 got_offset
= dyn_i
->dtpmod_offset
;
3409 case R_IA64_DTPREL64LSB
:
3410 done
= dyn_i
->dtprel_done
;
3411 dyn_i
->dtprel_done
= TRUE
;
3412 got_offset
= dyn_i
->dtprel_offset
;
3415 done
= dyn_i
->got_done
;
3416 dyn_i
->got_done
= TRUE
;
3417 got_offset
= dyn_i
->got_offset
;
3421 BFD_ASSERT ((got_offset
& 7) == 0);
3425 /* Store the target address in the linkage table entry. */
3426 bfd_put_64 (abfd
, value
, got_sec
->contents
+ got_offset
);
3428 /* Install a dynamic relocation if needed. */
3431 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3432 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
3433 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3434 || elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, info
, dyn_r_type
)
3435 || (dynindx
!= -1 && dyn_r_type
== R_IA64_FPTR64LSB
))
3436 && (!dyn_i
->want_ltoff_fptr
3439 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3442 && dyn_r_type
!= R_IA64_TPREL64LSB
3443 && dyn_r_type
!= R_IA64_DTPMOD64LSB
3444 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3446 dyn_r_type
= R_IA64_REL64LSB
;
3451 if (bfd_big_endian (abfd
))
3455 case R_IA64_REL64LSB
:
3456 dyn_r_type
= R_IA64_REL64MSB
;
3458 case R_IA64_DIR64LSB
:
3459 dyn_r_type
= R_IA64_DIR64MSB
;
3461 case R_IA64_FPTR64LSB
:
3462 dyn_r_type
= R_IA64_FPTR64MSB
;
3464 case R_IA64_TPREL64LSB
:
3465 dyn_r_type
= R_IA64_TPREL64MSB
;
3467 case R_IA64_DTPMOD64LSB
:
3468 dyn_r_type
= R_IA64_DTPMOD64MSB
;
3470 case R_IA64_DTPREL64LSB
:
3471 dyn_r_type
= R_IA64_DTPREL64MSB
;
3479 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, got_sec
,
3480 ia64_info
->rel_got_sec
,
3481 got_offset
, dyn_r_type
,
3486 /* Return the address of the linkage table entry. */
3487 value
= (got_sec
->output_section
->vma
3488 + got_sec
->output_offset
3494 /* Fill in a function descriptor consisting of the function's code
3495 address and its global pointer. Return the descriptor's address. */
3498 set_fptr_entry (abfd
, info
, dyn_i
, value
)
3500 struct bfd_link_info
*info
;
3501 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3504 struct elfNN_ia64_link_hash_table
*ia64_info
;
3507 ia64_info
= elfNN_ia64_hash_table (info
);
3508 fptr_sec
= ia64_info
->fptr_sec
;
3510 if (!dyn_i
->fptr_done
)
3512 dyn_i
->fptr_done
= 1;
3514 /* Fill in the function descriptor. */
3515 bfd_put_64 (abfd
, value
, fptr_sec
->contents
+ dyn_i
->fptr_offset
);
3516 bfd_put_64 (abfd
, _bfd_get_gp_value (abfd
),
3517 fptr_sec
->contents
+ dyn_i
->fptr_offset
+ 8);
3518 if (ia64_info
->rel_fptr_sec
)
3520 Elf_Internal_Rela outrel
;
3523 if (bfd_little_endian (abfd
))
3524 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTLSB
);
3526 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTMSB
);
3527 outrel
.r_addend
= value
;
3528 outrel
.r_offset
= (fptr_sec
->output_section
->vma
3529 + fptr_sec
->output_offset
3530 + dyn_i
->fptr_offset
);
3531 loc
= ia64_info
->rel_fptr_sec
->contents
;
3532 loc
+= ia64_info
->rel_fptr_sec
->reloc_count
++
3533 * sizeof (ElfNN_External_Rela
);
3534 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3538 /* Return the descriptor's address. */
3539 value
= (fptr_sec
->output_section
->vma
3540 + fptr_sec
->output_offset
3541 + dyn_i
->fptr_offset
);
3546 /* Fill in a PLTOFF entry consisting of the function's code address
3547 and its global pointer. Return the descriptor's address. */
3550 set_pltoff_entry (abfd
, info
, dyn_i
, value
, is_plt
)
3552 struct bfd_link_info
*info
;
3553 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3557 struct elfNN_ia64_link_hash_table
*ia64_info
;
3558 asection
*pltoff_sec
;
3560 ia64_info
= elfNN_ia64_hash_table (info
);
3561 pltoff_sec
= ia64_info
->pltoff_sec
;
3563 /* Don't do anything if this symbol uses a real PLT entry. In
3564 that case, we'll fill this in during finish_dynamic_symbol. */
3565 if ((! dyn_i
->want_plt
|| is_plt
)
3566 && !dyn_i
->pltoff_done
)
3568 bfd_vma gp
= _bfd_get_gp_value (abfd
);
3570 /* Fill in the function descriptor. */
3571 bfd_put_64 (abfd
, value
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
);
3572 bfd_put_64 (abfd
, gp
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
+ 8);
3574 /* Install dynamic relocations if needed. */
3578 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3579 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3581 unsigned int dyn_r_type
;
3583 if (bfd_big_endian (abfd
))
3584 dyn_r_type
= R_IA64_REL64MSB
;
3586 dyn_r_type
= R_IA64_REL64LSB
;
3588 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3589 ia64_info
->rel_pltoff_sec
,
3590 dyn_i
->pltoff_offset
,
3591 dyn_r_type
, 0, value
);
3592 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3593 ia64_info
->rel_pltoff_sec
,
3594 dyn_i
->pltoff_offset
+ 8,
3598 dyn_i
->pltoff_done
= 1;
3601 /* Return the descriptor's address. */
3602 value
= (pltoff_sec
->output_section
->vma
3603 + pltoff_sec
->output_offset
3604 + dyn_i
->pltoff_offset
);
3609 /* Return the base VMA address which should be subtracted from real addresses
3610 when resolving @tprel() relocation.
3611 Main program TLS (whose template starts at PT_TLS p_vaddr)
3612 is assigned offset round(16, PT_TLS p_align). */
3615 elfNN_ia64_tprel_base (info
)
3616 struct bfd_link_info
*info
;
3618 asection
*tls_sec
= elf_hash_table (info
)->tls_sec
;
3620 BFD_ASSERT (tls_sec
!= NULL
);
3621 return tls_sec
->vma
- align_power ((bfd_vma
) 16, tls_sec
->alignment_power
);
3624 /* Return the base VMA address which should be subtracted from real addresses
3625 when resolving @dtprel() relocation.
3626 This is PT_TLS segment p_vaddr. */
3629 elfNN_ia64_dtprel_base (info
)
3630 struct bfd_link_info
*info
;
3632 BFD_ASSERT (elf_hash_table (info
)->tls_sec
!= NULL
);
3633 return elf_hash_table (info
)->tls_sec
->vma
;
3636 /* Called through qsort to sort the .IA_64.unwind section during a
3637 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3638 to the output bfd so we can do proper endianness frobbing. */
3640 static bfd
*elfNN_ia64_unwind_entry_compare_bfd
;
3643 elfNN_ia64_unwind_entry_compare (a
, b
)
3649 av
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, a
);
3650 bv
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, b
);
3652 return (av
< bv
? -1 : av
> bv
? 1 : 0);
3655 /* Make sure we've got ourselves a nice fat __gp value. */
3657 elfNN_ia64_choose_gp (abfd
, info
)
3659 struct bfd_link_info
*info
;
3661 bfd_vma min_vma
= (bfd_vma
) -1, max_vma
= 0;
3662 bfd_vma min_short_vma
= min_vma
, max_short_vma
= 0;
3663 struct elf_link_hash_entry
*gp
;
3666 struct elfNN_ia64_link_hash_table
*ia64_info
;
3668 ia64_info
= elfNN_ia64_hash_table (info
);
3670 /* Find the min and max vma of all sections marked short. Also collect
3671 min and max vma of any type, for use in selecting a nice gp. */
3672 for (os
= abfd
->sections
; os
; os
= os
->next
)
3676 if ((os
->flags
& SEC_ALLOC
) == 0)
3680 hi
= os
->vma
+ os
->size
;
3688 if (os
->flags
& SEC_SMALL_DATA
)
3690 if (min_short_vma
> lo
)
3692 if (max_short_vma
< hi
)
3697 /* See if the user wants to force a value. */
3698 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3702 && (gp
->root
.type
== bfd_link_hash_defined
3703 || gp
->root
.type
== bfd_link_hash_defweak
))
3705 asection
*gp_sec
= gp
->root
.u
.def
.section
;
3706 gp_val
= (gp
->root
.u
.def
.value
3707 + gp_sec
->output_section
->vma
3708 + gp_sec
->output_offset
);
3712 /* Pick a sensible value. */
3714 asection
*got_sec
= ia64_info
->got_sec
;
3716 /* Start with just the address of the .got. */
3718 gp_val
= got_sec
->output_section
->vma
;
3719 else if (max_short_vma
!= 0)
3720 gp_val
= min_short_vma
;
3724 /* If it is possible to address the entire image, but we
3725 don't with the choice above, adjust. */
3726 if (max_vma
- min_vma
< 0x400000
3727 && max_vma
- gp_val
<= 0x200000
3728 && gp_val
- min_vma
> 0x200000)
3729 gp_val
= min_vma
+ 0x200000;
3730 else if (max_short_vma
!= 0)
3732 /* If we don't cover all the short data, adjust. */
3733 if (max_short_vma
- gp_val
>= 0x200000)
3734 gp_val
= min_short_vma
+ 0x200000;
3736 /* If we're addressing stuff past the end, adjust back. */
3737 if (gp_val
> max_vma
)
3738 gp_val
= max_vma
- 0x200000 + 8;
3742 /* Validate whether all SHF_IA_64_SHORT sections are within
3743 range of the chosen GP. */
3745 if (max_short_vma
!= 0)
3747 if (max_short_vma
- min_short_vma
>= 0x400000)
3749 (*_bfd_error_handler
)
3750 (_("%s: short data segment overflowed (0x%lx >= 0x400000)"),
3751 bfd_get_filename (abfd
),
3752 (unsigned long) (max_short_vma
- min_short_vma
));
3755 else if ((gp_val
> min_short_vma
3756 && gp_val
- min_short_vma
> 0x200000)
3757 || (gp_val
< max_short_vma
3758 && max_short_vma
- gp_val
>= 0x200000))
3760 (*_bfd_error_handler
)
3761 (_("%s: __gp does not cover short data segment"),
3762 bfd_get_filename (abfd
));
3767 _bfd_set_gp_value (abfd
, gp_val
);
3773 elfNN_ia64_final_link (abfd
, info
)
3775 struct bfd_link_info
*info
;
3777 struct elfNN_ia64_link_hash_table
*ia64_info
;
3778 asection
*unwind_output_sec
;
3780 ia64_info
= elfNN_ia64_hash_table (info
);
3782 /* Make sure we've got ourselves a nice fat __gp value. */
3783 if (!info
->relocatable
)
3785 bfd_vma gp_val
= _bfd_get_gp_value (abfd
);
3786 struct elf_link_hash_entry
*gp
;
3790 if (! elfNN_ia64_choose_gp (abfd
, info
))
3792 gp_val
= _bfd_get_gp_value (abfd
);
3795 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3799 gp
->root
.type
= bfd_link_hash_defined
;
3800 gp
->root
.u
.def
.value
= gp_val
;
3801 gp
->root
.u
.def
.section
= bfd_abs_section_ptr
;
3805 /* If we're producing a final executable, we need to sort the contents
3806 of the .IA_64.unwind section. Force this section to be relocated
3807 into memory rather than written immediately to the output file. */
3808 unwind_output_sec
= NULL
;
3809 if (!info
->relocatable
)
3811 asection
*s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_unwind
);
3814 unwind_output_sec
= s
->output_section
;
3815 unwind_output_sec
->contents
3816 = bfd_malloc (unwind_output_sec
->size
);
3817 if (unwind_output_sec
->contents
== NULL
)
3822 /* Invoke the regular ELF backend linker to do all the work. */
3823 if (!bfd_elf_final_link (abfd
, info
))
3826 if (unwind_output_sec
)
3828 elfNN_ia64_unwind_entry_compare_bfd
= abfd
;
3829 qsort (unwind_output_sec
->contents
,
3830 (size_t) (unwind_output_sec
->size
/ 24),
3832 elfNN_ia64_unwind_entry_compare
);
3834 if (! bfd_set_section_contents (abfd
, unwind_output_sec
,
3835 unwind_output_sec
->contents
, (bfd_vma
) 0,
3836 unwind_output_sec
->size
))
3844 elfNN_ia64_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
3845 contents
, relocs
, local_syms
, local_sections
)
3847 struct bfd_link_info
*info
;
3849 asection
*input_section
;
3851 Elf_Internal_Rela
*relocs
;
3852 Elf_Internal_Sym
*local_syms
;
3853 asection
**local_sections
;
3855 struct elfNN_ia64_link_hash_table
*ia64_info
;
3856 Elf_Internal_Shdr
*symtab_hdr
;
3857 Elf_Internal_Rela
*rel
;
3858 Elf_Internal_Rela
*relend
;
3860 bfd_boolean ret_val
= TRUE
; /* for non-fatal errors */
3863 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3864 ia64_info
= elfNN_ia64_hash_table (info
);
3866 /* Infect various flags from the input section to the output section. */
3867 if (info
->relocatable
)
3871 flags
= elf_section_data(input_section
)->this_hdr
.sh_flags
;
3872 flags
&= SHF_IA_64_NORECOV
;
3874 elf_section_data(input_section
->output_section
)
3875 ->this_hdr
.sh_flags
|= flags
;
3879 gp_val
= _bfd_get_gp_value (output_bfd
);
3880 srel
= get_reloc_section (input_bfd
, ia64_info
, input_section
, FALSE
);
3883 relend
= relocs
+ input_section
->reloc_count
;
3884 for (; rel
< relend
; ++rel
)
3886 struct elf_link_hash_entry
*h
;
3887 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3888 bfd_reloc_status_type r
;
3889 reloc_howto_type
*howto
;
3890 unsigned long r_symndx
;
3891 Elf_Internal_Sym
*sym
;
3892 unsigned int r_type
;
3896 bfd_boolean dynamic_symbol_p
;
3897 bfd_boolean undef_weak_ref
;
3899 r_type
= ELFNN_R_TYPE (rel
->r_info
);
3900 if (r_type
> R_IA64_MAX_RELOC_CODE
)
3902 (*_bfd_error_handler
)
3903 (_("%B: unknown relocation type %d"),
3904 input_bfd
, (int) r_type
);
3905 bfd_set_error (bfd_error_bad_value
);
3910 howto
= lookup_howto (r_type
);
3911 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
3915 undef_weak_ref
= FALSE
;
3917 if (r_symndx
< symtab_hdr
->sh_info
)
3919 /* Reloc against local symbol. */
3921 sym
= local_syms
+ r_symndx
;
3922 sym_sec
= local_sections
[r_symndx
];
3924 value
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &msec
, rel
);
3925 if ((sym_sec
->flags
& SEC_MERGE
)
3926 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
3927 && sym_sec
->sec_info_type
== ELF_INFO_TYPE_MERGE
)
3929 struct elfNN_ia64_local_hash_entry
*loc_h
;
3931 loc_h
= get_local_sym_hash (ia64_info
, input_bfd
, rel
, FALSE
);
3932 if (loc_h
&& ! loc_h
->sec_merge_done
)
3934 struct elfNN_ia64_dyn_sym_info
*dynent
;
3936 for (dynent
= loc_h
->info
; dynent
; dynent
= dynent
->next
)
3940 _bfd_merged_section_offset (output_bfd
, &msec
,
3941 elf_section_data (msec
)->
3945 dynent
->addend
-= sym
->st_value
;
3946 dynent
->addend
+= msec
->output_section
->vma
3947 + msec
->output_offset
3948 - sym_sec
->output_section
->vma
3949 - sym_sec
->output_offset
;
3951 loc_h
->sec_merge_done
= 1;
3957 bfd_boolean unresolved_reloc
;
3959 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
3961 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
3962 r_symndx
, symtab_hdr
, sym_hashes
,
3964 unresolved_reloc
, warned
);
3966 if (h
->root
.type
== bfd_link_hash_undefweak
)
3967 undef_weak_ref
= TRUE
;
3972 hit_addr
= contents
+ rel
->r_offset
;
3973 value
+= rel
->r_addend
;
3974 dynamic_symbol_p
= elfNN_ia64_dynamic_symbol_p (h
, info
, r_type
);
3985 case R_IA64_DIR32MSB
:
3986 case R_IA64_DIR32LSB
:
3987 case R_IA64_DIR64MSB
:
3988 case R_IA64_DIR64LSB
:
3989 /* Install a dynamic relocation for this reloc. */
3990 if ((dynamic_symbol_p
|| info
->shared
)
3992 && (input_section
->flags
& SEC_ALLOC
) != 0)
3994 unsigned int dyn_r_type
;
3998 BFD_ASSERT (srel
!= NULL
);
4005 /* ??? People shouldn't be doing non-pic code in
4006 shared libraries nor dynamic executables. */
4007 (*_bfd_error_handler
)
4008 (_("%B: non-pic code with imm relocation against dynamic symbol `%s'"),
4010 h
->root
.root
.string
);
4018 /* If we don't need dynamic symbol lookup, find a
4019 matching RELATIVE relocation. */
4020 dyn_r_type
= r_type
;
4021 if (dynamic_symbol_p
)
4023 dynindx
= h
->dynindx
;
4024 addend
= rel
->r_addend
;
4031 case R_IA64_DIR32MSB
:
4032 dyn_r_type
= R_IA64_REL32MSB
;
4034 case R_IA64_DIR32LSB
:
4035 dyn_r_type
= R_IA64_REL32LSB
;
4037 case R_IA64_DIR64MSB
:
4038 dyn_r_type
= R_IA64_REL64MSB
;
4040 case R_IA64_DIR64LSB
:
4041 dyn_r_type
= R_IA64_REL64LSB
;
4051 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4052 srel
, rel
->r_offset
, dyn_r_type
,
4057 case R_IA64_LTV32MSB
:
4058 case R_IA64_LTV32LSB
:
4059 case R_IA64_LTV64MSB
:
4060 case R_IA64_LTV64LSB
:
4061 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4064 case R_IA64_GPREL22
:
4065 case R_IA64_GPREL64I
:
4066 case R_IA64_GPREL32MSB
:
4067 case R_IA64_GPREL32LSB
:
4068 case R_IA64_GPREL64MSB
:
4069 case R_IA64_GPREL64LSB
:
4070 if (dynamic_symbol_p
)
4072 (*_bfd_error_handler
)
4073 (_("%B: @gprel relocation against dynamic symbol %s"),
4074 input_bfd
, h
->root
.root
.string
);
4079 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4082 case R_IA64_LTOFF22
:
4083 case R_IA64_LTOFF22X
:
4084 case R_IA64_LTOFF64I
:
4085 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4086 value
= set_got_entry (input_bfd
, info
, dyn_i
, (h
? h
->dynindx
: -1),
4087 rel
->r_addend
, value
, R_IA64_DIR64LSB
);
4089 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4092 case R_IA64_PLTOFF22
:
4093 case R_IA64_PLTOFF64I
:
4094 case R_IA64_PLTOFF64MSB
:
4095 case R_IA64_PLTOFF64LSB
:
4096 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4097 value
= set_pltoff_entry (output_bfd
, info
, dyn_i
, value
, FALSE
);
4099 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4102 case R_IA64_FPTR64I
:
4103 case R_IA64_FPTR32MSB
:
4104 case R_IA64_FPTR32LSB
:
4105 case R_IA64_FPTR64MSB
:
4106 case R_IA64_FPTR64LSB
:
4107 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4108 if (dyn_i
->want_fptr
)
4110 if (!undef_weak_ref
)
4111 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4113 if (!dyn_i
->want_fptr
|| info
->pie
)
4116 unsigned int dyn_r_type
= r_type
;
4117 bfd_vma addend
= rel
->r_addend
;
4119 /* Otherwise, we expect the dynamic linker to create
4122 if (dyn_i
->want_fptr
)
4124 if (r_type
== R_IA64_FPTR64I
)
4126 /* We can't represent this without a dynamic symbol.
4127 Adjust the relocation to be against an output
4128 section symbol, which are always present in the
4129 dynamic symbol table. */
4130 /* ??? People shouldn't be doing non-pic code in
4131 shared libraries. Hork. */
4132 (*_bfd_error_handler
)
4133 (_("%B: linking non-pic code in a position independent executable"),
4140 dyn_r_type
= r_type
+ R_IA64_REL64LSB
- R_IA64_FPTR64LSB
;
4144 if (h
->dynindx
!= -1)
4145 dynindx
= h
->dynindx
;
4147 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4148 (info
, h
->root
.u
.def
.section
->owner
,
4149 global_sym_index (h
)));
4154 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4155 (info
, input_bfd
, (long) r_symndx
));
4159 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4160 srel
, rel
->r_offset
, dyn_r_type
,
4164 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4167 case R_IA64_LTOFF_FPTR22
:
4168 case R_IA64_LTOFF_FPTR64I
:
4169 case R_IA64_LTOFF_FPTR32MSB
:
4170 case R_IA64_LTOFF_FPTR32LSB
:
4171 case R_IA64_LTOFF_FPTR64MSB
:
4172 case R_IA64_LTOFF_FPTR64LSB
:
4176 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4177 if (dyn_i
->want_fptr
)
4179 BFD_ASSERT (h
== NULL
|| h
->dynindx
== -1);
4180 if (!undef_weak_ref
)
4181 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4186 /* Otherwise, we expect the dynamic linker to create
4190 if (h
->dynindx
!= -1)
4191 dynindx
= h
->dynindx
;
4193 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4194 (info
, h
->root
.u
.def
.section
->owner
,
4195 global_sym_index (h
)));
4198 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4199 (info
, input_bfd
, (long) r_symndx
));
4203 value
= set_got_entry (output_bfd
, info
, dyn_i
, dynindx
,
4204 rel
->r_addend
, value
, R_IA64_FPTR64LSB
);
4206 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4210 case R_IA64_PCREL32MSB
:
4211 case R_IA64_PCREL32LSB
:
4212 case R_IA64_PCREL64MSB
:
4213 case R_IA64_PCREL64LSB
:
4214 /* Install a dynamic relocation for this reloc. */
4215 if (dynamic_symbol_p
&& r_symndx
!= 0)
4217 BFD_ASSERT (srel
!= NULL
);
4219 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4220 srel
, rel
->r_offset
, r_type
,
4221 h
->dynindx
, rel
->r_addend
);
4225 case R_IA64_PCREL21B
:
4226 case R_IA64_PCREL60B
:
4227 /* We should have created a PLT entry for any dynamic symbol. */
4230 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4232 if (dyn_i
&& dyn_i
->want_plt2
)
4234 /* Should have caught this earlier. */
4235 BFD_ASSERT (rel
->r_addend
== 0);
4237 value
= (ia64_info
->plt_sec
->output_section
->vma
4238 + ia64_info
->plt_sec
->output_offset
4239 + dyn_i
->plt2_offset
);
4243 /* Since there's no PLT entry, Validate that this is
4245 BFD_ASSERT (undef_weak_ref
|| sym_sec
->output_section
!= NULL
);
4247 /* If the symbol is undef_weak, we shouldn't be trying
4248 to call it. There's every chance that we'd wind up
4249 with an out-of-range fixup here. Don't bother setting
4250 any value at all. */
4256 case R_IA64_PCREL21BI
:
4257 case R_IA64_PCREL21F
:
4258 case R_IA64_PCREL21M
:
4259 case R_IA64_PCREL22
:
4260 case R_IA64_PCREL64I
:
4261 /* The PCREL21BI reloc is specifically not intended for use with
4262 dynamic relocs. PCREL21F and PCREL21M are used for speculation
4263 fixup code, and thus probably ought not be dynamic. The
4264 PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4265 if (dynamic_symbol_p
)
4269 if (r_type
== R_IA64_PCREL21BI
)
4270 msg
= _("%B: @internal branch to dynamic symbol %s");
4271 else if (r_type
== R_IA64_PCREL21F
|| r_type
== R_IA64_PCREL21M
)
4272 msg
= _("%B: speculation fixup to dynamic symbol %s");
4274 msg
= _("%B: @pcrel relocation against dynamic symbol %s");
4275 (*_bfd_error_handler
) (msg
, input_bfd
, h
->root
.root
.string
);
4282 /* Make pc-relative. */
4283 value
-= (input_section
->output_section
->vma
4284 + input_section
->output_offset
4285 + rel
->r_offset
) & ~ (bfd_vma
) 0x3;
4286 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4289 case R_IA64_SEGREL32MSB
:
4290 case R_IA64_SEGREL32LSB
:
4291 case R_IA64_SEGREL64MSB
:
4292 case R_IA64_SEGREL64LSB
:
4295 /* If the input section was discarded from the output, then
4301 struct elf_segment_map
*m
;
4302 Elf_Internal_Phdr
*p
;
4304 /* Find the segment that contains the output_section. */
4305 for (m
= elf_tdata (output_bfd
)->segment_map
,
4306 p
= elf_tdata (output_bfd
)->phdr
;
4311 for (i
= m
->count
- 1; i
>= 0; i
--)
4312 if (m
->sections
[i
] == input_section
->output_section
)
4320 r
= bfd_reloc_notsupported
;
4324 /* The VMA of the segment is the vaddr of the associated
4326 if (value
> p
->p_vaddr
)
4327 value
-= p
->p_vaddr
;
4330 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4335 case R_IA64_SECREL32MSB
:
4336 case R_IA64_SECREL32LSB
:
4337 case R_IA64_SECREL64MSB
:
4338 case R_IA64_SECREL64LSB
:
4339 /* Make output-section relative to section where the symbol
4340 is defined. PR 475 */
4342 value
-= sym_sec
->output_section
->vma
;
4343 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4346 case R_IA64_IPLTMSB
:
4347 case R_IA64_IPLTLSB
:
4348 /* Install a dynamic relocation for this reloc. */
4349 if ((dynamic_symbol_p
|| info
->shared
)
4350 && (input_section
->flags
& SEC_ALLOC
) != 0)
4352 BFD_ASSERT (srel
!= NULL
);
4354 /* If we don't need dynamic symbol lookup, install two
4355 RELATIVE relocations. */
4356 if (!dynamic_symbol_p
)
4358 unsigned int dyn_r_type
;
4360 if (r_type
== R_IA64_IPLTMSB
)
4361 dyn_r_type
= R_IA64_REL64MSB
;
4363 dyn_r_type
= R_IA64_REL64LSB
;
4365 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4367 srel
, rel
->r_offset
,
4368 dyn_r_type
, 0, value
);
4369 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4371 srel
, rel
->r_offset
+ 8,
4372 dyn_r_type
, 0, gp_val
);
4375 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4376 srel
, rel
->r_offset
, r_type
,
4377 h
->dynindx
, rel
->r_addend
);
4380 if (r_type
== R_IA64_IPLTMSB
)
4381 r_type
= R_IA64_DIR64MSB
;
4383 r_type
= R_IA64_DIR64LSB
;
4384 elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4385 r
= elfNN_ia64_install_value (hit_addr
+ 8, gp_val
, r_type
);
4388 case R_IA64_TPREL14
:
4389 case R_IA64_TPREL22
:
4390 case R_IA64_TPREL64I
:
4391 value
-= elfNN_ia64_tprel_base (info
);
4392 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4395 case R_IA64_DTPREL14
:
4396 case R_IA64_DTPREL22
:
4397 case R_IA64_DTPREL64I
:
4398 case R_IA64_DTPREL64LSB
:
4399 case R_IA64_DTPREL64MSB
:
4400 value
-= elfNN_ia64_dtprel_base (info
);
4401 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4404 case R_IA64_LTOFF_TPREL22
:
4405 case R_IA64_LTOFF_DTPMOD22
:
4406 case R_IA64_LTOFF_DTPREL22
:
4409 long dynindx
= h
? h
->dynindx
: -1;
4410 bfd_vma r_addend
= rel
->r_addend
;
4415 case R_IA64_LTOFF_TPREL22
:
4416 if (!dynamic_symbol_p
)
4419 value
-= elfNN_ia64_tprel_base (info
);
4422 r_addend
+= value
- elfNN_ia64_dtprel_base (info
);
4426 got_r_type
= R_IA64_TPREL64LSB
;
4428 case R_IA64_LTOFF_DTPMOD22
:
4429 if (!dynamic_symbol_p
&& !info
->shared
)
4431 got_r_type
= R_IA64_DTPMOD64LSB
;
4433 case R_IA64_LTOFF_DTPREL22
:
4434 if (!dynamic_symbol_p
)
4435 value
-= elfNN_ia64_dtprel_base (info
);
4436 got_r_type
= R_IA64_DTPREL64LSB
;
4439 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4440 value
= set_got_entry (input_bfd
, info
, dyn_i
, dynindx
, r_addend
,
4443 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4448 r
= bfd_reloc_notsupported
;
4457 case bfd_reloc_undefined
:
4458 /* This can happen for global table relative relocs if
4459 __gp is undefined. This is a panic situation so we
4460 don't try to continue. */
4461 (*info
->callbacks
->undefined_symbol
)
4462 (info
, "__gp", input_bfd
, input_section
, rel
->r_offset
, 1);
4465 case bfd_reloc_notsupported
:
4470 name
= h
->root
.root
.string
;
4473 name
= bfd_elf_string_from_elf_section (input_bfd
,
4474 symtab_hdr
->sh_link
,
4479 name
= bfd_section_name (input_bfd
, input_section
);
4481 if (!(*info
->callbacks
->warning
) (info
, _("unsupported reloc"),
4483 input_section
, rel
->r_offset
))
4489 case bfd_reloc_dangerous
:
4490 case bfd_reloc_outofrange
:
4491 case bfd_reloc_overflow
:
4500 name
= bfd_elf_string_from_elf_section (input_bfd
,
4501 symtab_hdr
->sh_link
,
4506 name
= bfd_section_name (input_bfd
, sym_sec
);
4511 case R_IA64_PCREL21B
:
4512 case R_IA64_PCREL21BI
:
4513 case R_IA64_PCREL21M
:
4514 case R_IA64_PCREL21F
:
4515 if (is_elf_hash_table (info
->hash
))
4517 /* Relaxtion is always performed for ELF output.
4518 Overflow failures for those relocations mean
4519 that the section is too big to relax. */
4520 (*_bfd_error_handler
)
4521 (_("%B: Can't relax br (%s) to `%s' at 0x%lx in section `%A' with size 0x%lx (> 0x1000000)."),
4522 input_bfd
, input_section
, howto
->name
, name
,
4523 rel
->r_offset
, input_section
->size
);
4527 if (!(*info
->callbacks
->reloc_overflow
) (info
,
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 (loc
, index
, R_IA64_IMM22
);
4579 elfNN_ia64_install_value (loc
+2, -dyn_i
->plt_offset
, R_IA64_PCREL21B
);
4581 plt_addr
= (plt_sec
->output_section
->vma
4582 + plt_sec
->output_offset
4583 + dyn_i
->plt_offset
);
4584 pltoff_addr
= set_pltoff_entry (output_bfd
, info
, dyn_i
, plt_addr
, TRUE
);
4586 /* Initialize the FULL PLT entry, if needed. */
4587 if (dyn_i
->want_plt2
)
4589 loc
= plt_sec
->contents
+ dyn_i
->plt2_offset
;
4591 memcpy (loc
, plt_full_entry
, PLT_FULL_ENTRY_SIZE
);
4592 elfNN_ia64_install_value (loc
, pltoff_addr
- gp_val
, R_IA64_IMM22
);
4594 /* Mark the symbol as undefined, rather than as defined in the
4595 plt section. Leave the value alone. */
4596 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4597 first place. But perhaps elflink.c did some for us. */
4598 if (!h
->def_regular
)
4599 sym
->st_shndx
= SHN_UNDEF
;
4602 /* Create the dynamic relocation. */
4603 outrel
.r_offset
= pltoff_addr
;
4604 if (bfd_little_endian (output_bfd
))
4605 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTLSB
);
4607 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTMSB
);
4608 outrel
.r_addend
= 0;
4610 /* This is fun. In the .IA_64.pltoff section, we've got entries
4611 that correspond both to real PLT entries, and those that
4612 happened to resolve to local symbols but need to be created
4613 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4614 relocations for the real PLT should come at the end of the
4615 section, so that they can be indexed by plt entry at runtime.
4617 We emitted all of the relocations for the non-PLT @pltoff
4618 entries during relocate_section. So we can consider the
4619 existing sec->reloc_count to be the base of the array of
4622 loc
= ia64_info
->rel_pltoff_sec
->contents
;
4623 loc
+= ((ia64_info
->rel_pltoff_sec
->reloc_count
+ index
)
4624 * sizeof (ElfNN_External_Rela
));
4625 bfd_elfNN_swap_reloca_out (output_bfd
, &outrel
, loc
);
4628 /* Mark some specially defined symbols as absolute. */
4629 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
4630 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0
4631 || strcmp (h
->root
.root
.string
, "_PROCEDURE_LINKAGE_TABLE_") == 0)
4632 sym
->st_shndx
= SHN_ABS
;
4638 elfNN_ia64_finish_dynamic_sections (abfd
, info
)
4640 struct bfd_link_info
*info
;
4642 struct elfNN_ia64_link_hash_table
*ia64_info
;
4645 ia64_info
= elfNN_ia64_hash_table (info
);
4646 dynobj
= ia64_info
->root
.dynobj
;
4648 if (elf_hash_table (info
)->dynamic_sections_created
)
4650 ElfNN_External_Dyn
*dyncon
, *dynconend
;
4651 asection
*sdyn
, *sgotplt
;
4654 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
4655 sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
4656 BFD_ASSERT (sdyn
!= NULL
);
4657 dyncon
= (ElfNN_External_Dyn
*) sdyn
->contents
;
4658 dynconend
= (ElfNN_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
4660 gp_val
= _bfd_get_gp_value (abfd
);
4662 for (; dyncon
< dynconend
; dyncon
++)
4664 Elf_Internal_Dyn dyn
;
4666 bfd_elfNN_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4671 dyn
.d_un
.d_ptr
= gp_val
;
4675 dyn
.d_un
.d_val
= (ia64_info
->minplt_entries
4676 * sizeof (ElfNN_External_Rela
));
4680 /* See the comment above in finish_dynamic_symbol. */
4681 dyn
.d_un
.d_ptr
= (ia64_info
->rel_pltoff_sec
->output_section
->vma
4682 + ia64_info
->rel_pltoff_sec
->output_offset
4683 + (ia64_info
->rel_pltoff_sec
->reloc_count
4684 * sizeof (ElfNN_External_Rela
)));
4687 case DT_IA_64_PLT_RESERVE
:
4688 dyn
.d_un
.d_ptr
= (sgotplt
->output_section
->vma
4689 + sgotplt
->output_offset
);
4693 /* Do not have RELASZ include JMPREL. This makes things
4694 easier on ld.so. This is not what the rest of BFD set up. */
4695 dyn
.d_un
.d_val
-= (ia64_info
->minplt_entries
4696 * sizeof (ElfNN_External_Rela
));
4700 bfd_elfNN_swap_dyn_out (abfd
, &dyn
, dyncon
);
4703 /* Initialize the PLT0 entry. */
4704 if (ia64_info
->plt_sec
)
4706 bfd_byte
*loc
= ia64_info
->plt_sec
->contents
;
4709 memcpy (loc
, plt_header
, PLT_HEADER_SIZE
);
4711 pltres
= (sgotplt
->output_section
->vma
4712 + sgotplt
->output_offset
4715 elfNN_ia64_install_value (loc
+1, pltres
, R_IA64_GPREL22
);
4722 /* ELF file flag handling: */
4724 /* Function to keep IA-64 specific file flags. */
4726 elfNN_ia64_set_private_flags (abfd
, flags
)
4730 BFD_ASSERT (!elf_flags_init (abfd
)
4731 || elf_elfheader (abfd
)->e_flags
== flags
);
4733 elf_elfheader (abfd
)->e_flags
= flags
;
4734 elf_flags_init (abfd
) = TRUE
;
4738 /* Merge backend specific data from an object file to the output
4739 object file when linking. */
4741 elfNN_ia64_merge_private_bfd_data (ibfd
, obfd
)
4746 bfd_boolean ok
= TRUE
;
4748 /* Don't even pretend to support mixed-format linking. */
4749 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
4750 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
4753 in_flags
= elf_elfheader (ibfd
)->e_flags
;
4754 out_flags
= elf_elfheader (obfd
)->e_flags
;
4756 if (! elf_flags_init (obfd
))
4758 elf_flags_init (obfd
) = TRUE
;
4759 elf_elfheader (obfd
)->e_flags
= in_flags
;
4761 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
4762 && bfd_get_arch_info (obfd
)->the_default
)
4764 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
4765 bfd_get_mach (ibfd
));
4771 /* Check flag compatibility. */
4772 if (in_flags
== out_flags
)
4775 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4776 if (!(in_flags
& EF_IA_64_REDUCEDFP
) && (out_flags
& EF_IA_64_REDUCEDFP
))
4777 elf_elfheader (obfd
)->e_flags
&= ~EF_IA_64_REDUCEDFP
;
4779 if ((in_flags
& EF_IA_64_TRAPNIL
) != (out_flags
& EF_IA_64_TRAPNIL
))
4781 (*_bfd_error_handler
)
4782 (_("%B: linking trap-on-NULL-dereference with non-trapping files"),
4785 bfd_set_error (bfd_error_bad_value
);
4788 if ((in_flags
& EF_IA_64_BE
) != (out_flags
& EF_IA_64_BE
))
4790 (*_bfd_error_handler
)
4791 (_("%B: linking big-endian files with little-endian files"),
4794 bfd_set_error (bfd_error_bad_value
);
4797 if ((in_flags
& EF_IA_64_ABI64
) != (out_flags
& EF_IA_64_ABI64
))
4799 (*_bfd_error_handler
)
4800 (_("%B: linking 64-bit files with 32-bit files"),
4803 bfd_set_error (bfd_error_bad_value
);
4806 if ((in_flags
& EF_IA_64_CONS_GP
) != (out_flags
& EF_IA_64_CONS_GP
))
4808 (*_bfd_error_handler
)
4809 (_("%B: linking constant-gp files with non-constant-gp files"),
4812 bfd_set_error (bfd_error_bad_value
);
4815 if ((in_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
)
4816 != (out_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
))
4818 (*_bfd_error_handler
)
4819 (_("%B: linking auto-pic files with non-auto-pic files"),
4822 bfd_set_error (bfd_error_bad_value
);
4830 elfNN_ia64_print_private_bfd_data (abfd
, ptr
)
4834 FILE *file
= (FILE *) ptr
;
4835 flagword flags
= elf_elfheader (abfd
)->e_flags
;
4837 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
4839 fprintf (file
, "private flags = %s%s%s%s%s%s%s%s\n",
4840 (flags
& EF_IA_64_TRAPNIL
) ? "TRAPNIL, " : "",
4841 (flags
& EF_IA_64_EXT
) ? "EXT, " : "",
4842 (flags
& EF_IA_64_BE
) ? "BE, " : "LE, ",
4843 (flags
& EF_IA_64_REDUCEDFP
) ? "REDUCEDFP, " : "",
4844 (flags
& EF_IA_64_CONS_GP
) ? "CONS_GP, " : "",
4845 (flags
& EF_IA_64_NOFUNCDESC_CONS_GP
) ? "NOFUNCDESC_CONS_GP, " : "",
4846 (flags
& EF_IA_64_ABSOLUTE
) ? "ABSOLUTE, " : "",
4847 (flags
& EF_IA_64_ABI64
) ? "ABI64" : "ABI32");
4849 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
4853 static enum elf_reloc_type_class
4854 elfNN_ia64_reloc_type_class (rela
)
4855 const Elf_Internal_Rela
*rela
;
4857 switch ((int) ELFNN_R_TYPE (rela
->r_info
))
4859 case R_IA64_REL32MSB
:
4860 case R_IA64_REL32LSB
:
4861 case R_IA64_REL64MSB
:
4862 case R_IA64_REL64LSB
:
4863 return reloc_class_relative
;
4864 case R_IA64_IPLTMSB
:
4865 case R_IA64_IPLTLSB
:
4866 return reloc_class_plt
;
4868 return reloc_class_copy
;
4870 return reloc_class_normal
;
4874 static struct bfd_elf_special_section
const elfNN_ia64_special_sections
[]=
4876 { ".sbss", 5, -1, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4877 { ".sdata", 6, -1, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4878 { NULL
, 0, 0, 0, 0 }
4882 elfNN_ia64_hpux_vec (const bfd_target
*vec
)
4884 extern const bfd_target bfd_elfNN_ia64_hpux_big_vec
;
4885 return (vec
== & bfd_elfNN_ia64_hpux_big_vec
);
4889 elfNN_hpux_post_process_headers (abfd
, info
)
4891 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
4893 Elf_Internal_Ehdr
*i_ehdrp
= elf_elfheader (abfd
);
4895 i_ehdrp
->e_ident
[EI_OSABI
] = ELFOSABI_HPUX
;
4896 i_ehdrp
->e_ident
[EI_ABIVERSION
] = 1;
4900 elfNN_hpux_backend_section_from_bfd_section (abfd
, sec
, retval
)
4901 bfd
*abfd ATTRIBUTE_UNUSED
;
4905 if (bfd_is_com_section (sec
))
4907 *retval
= SHN_IA_64_ANSI_COMMON
;
4914 elfNN_hpux_backend_symbol_processing (bfd
*abfd ATTRIBUTE_UNUSED
,
4917 elf_symbol_type
*elfsym
= (elf_symbol_type
*) asym
;;
4919 switch (elfsym
->internal_elf_sym
.st_shndx
)
4921 case SHN_IA_64_ANSI_COMMON
:
4922 asym
->section
= bfd_com_section_ptr
;
4923 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
4924 asym
->flags
&= ~BSF_GLOBAL
;
4930 #define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
4931 #define TARGET_LITTLE_NAME "elfNN-ia64-little"
4932 #define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec
4933 #define TARGET_BIG_NAME "elfNN-ia64-big"
4934 #define ELF_ARCH bfd_arch_ia64
4935 #define ELF_MACHINE_CODE EM_IA_64
4936 #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
4937 #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
4938 #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
4940 #define elf_backend_section_from_shdr \
4941 elfNN_ia64_section_from_shdr
4942 #define elf_backend_section_flags \
4943 elfNN_ia64_section_flags
4944 #define elf_backend_fake_sections \
4945 elfNN_ia64_fake_sections
4946 #define elf_backend_final_write_processing \
4947 elfNN_ia64_final_write_processing
4948 #define elf_backend_add_symbol_hook \
4949 elfNN_ia64_add_symbol_hook
4950 #define elf_backend_additional_program_headers \
4951 elfNN_ia64_additional_program_headers
4952 #define elf_backend_modify_segment_map \
4953 elfNN_ia64_modify_segment_map
4954 #define elf_info_to_howto \
4955 elfNN_ia64_info_to_howto
4957 #define bfd_elfNN_bfd_reloc_type_lookup \
4958 elfNN_ia64_reloc_type_lookup
4959 #define bfd_elfNN_bfd_is_local_label_name \
4960 elfNN_ia64_is_local_label_name
4961 #define bfd_elfNN_bfd_relax_section \
4962 elfNN_ia64_relax_section
4964 /* Stuff for the BFD linker: */
4965 #define bfd_elfNN_bfd_link_hash_table_create \
4966 elfNN_ia64_hash_table_create
4967 #define bfd_elfNN_bfd_link_hash_table_free \
4968 elfNN_ia64_hash_table_free
4969 #define elf_backend_create_dynamic_sections \
4970 elfNN_ia64_create_dynamic_sections
4971 #define elf_backend_check_relocs \
4972 elfNN_ia64_check_relocs
4973 #define elf_backend_adjust_dynamic_symbol \
4974 elfNN_ia64_adjust_dynamic_symbol
4975 #define elf_backend_size_dynamic_sections \
4976 elfNN_ia64_size_dynamic_sections
4977 #define elf_backend_relocate_section \
4978 elfNN_ia64_relocate_section
4979 #define elf_backend_finish_dynamic_symbol \
4980 elfNN_ia64_finish_dynamic_symbol
4981 #define elf_backend_finish_dynamic_sections \
4982 elfNN_ia64_finish_dynamic_sections
4983 #define bfd_elfNN_bfd_final_link \
4984 elfNN_ia64_final_link
4986 #define bfd_elfNN_bfd_merge_private_bfd_data \
4987 elfNN_ia64_merge_private_bfd_data
4988 #define bfd_elfNN_bfd_set_private_flags \
4989 elfNN_ia64_set_private_flags
4990 #define bfd_elfNN_bfd_print_private_bfd_data \
4991 elfNN_ia64_print_private_bfd_data
4993 #define elf_backend_plt_readonly 1
4994 #define elf_backend_want_plt_sym 0
4995 #define elf_backend_plt_alignment 5
4996 #define elf_backend_got_header_size 0
4997 #define elf_backend_want_got_plt 1
4998 #define elf_backend_may_use_rel_p 1
4999 #define elf_backend_may_use_rela_p 1
5000 #define elf_backend_default_use_rela_p 1
5001 #define elf_backend_want_dynbss 0
5002 #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
5003 #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
5004 #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
5005 #define elf_backend_rela_normal 1
5006 #define elf_backend_special_sections elfNN_ia64_special_sections
5008 /* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with
5009 SHF_LINK_ORDER. But it doesn't set theh sh_link or sh_info fields.
5010 We don't want to flood users with so many error messages. We turn
5011 off the warning for now. It will be turned on later when the Intel
5012 compiler is fixed. */
5013 #define elf_backend_link_order_error_handler NULL
5015 #include "elfNN-target.h"
5017 /* HPUX-specific vectors. */
5019 #undef TARGET_LITTLE_SYM
5020 #undef TARGET_LITTLE_NAME
5021 #undef TARGET_BIG_SYM
5022 #define TARGET_BIG_SYM bfd_elfNN_ia64_hpux_big_vec
5023 #undef TARGET_BIG_NAME
5024 #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
5026 /* These are HP-UX specific functions. */
5028 #undef elf_backend_post_process_headers
5029 #define elf_backend_post_process_headers elfNN_hpux_post_process_headers
5031 #undef elf_backend_section_from_bfd_section
5032 #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
5034 #undef elf_backend_symbol_processing
5035 #define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
5037 #undef elf_backend_want_p_paddr_set_to_zero
5038 #define elf_backend_want_p_paddr_set_to_zero 1
5040 #undef ELF_MAXPAGESIZE
5041 #define ELF_MAXPAGESIZE 0x1000 /* 1K */
5044 #define elfNN_bed elfNN_ia64_hpux_bed
5046 #include "elfNN-target.h"
5048 #undef elf_backend_want_p_paddr_set_to_zero