1 /* IA-64 support for 64-bit ELF
2 Copyright 1998, 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
3 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
25 #include "opcode/ia64.h"
28 /* THE RULES for all the stuff the linker creates --
30 GOT Entries created in response to LTOFF or LTOFF_FPTR
31 relocations. Dynamic relocs created for dynamic
32 symbols in an application; REL relocs for locals
35 FPTR The canonical function descriptor. Created for local
36 symbols in applications. Descriptors for dynamic symbols
37 and local symbols in shared libraries are created by
38 ld.so. Thus there are no dynamic relocs against these
39 objects. The FPTR relocs for such _are_ passed through
40 to the dynamic relocation tables.
42 FULL_PLT Created for a PCREL21B relocation against a dynamic symbol.
43 Requires the creation of a PLTOFF entry. This does not
44 require any dynamic relocations.
46 PLTOFF Created by PLTOFF relocations. For local symbols, this
47 is an alternate function descriptor, and in shared libraries
48 requires two REL relocations. Note that this cannot be
49 transformed into an FPTR relocation, since it must be in
50 range of the GP. For dynamic symbols, this is a function
51 descriptor for a MIN_PLT entry, and requires one IPLT reloc.
53 MIN_PLT Created by PLTOFF entries against dynamic symbols. This
54 does not reqire dynamic relocations. */
56 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
58 typedef struct bfd_hash_entry
*(*new_hash_entry_func
)
59 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
61 /* In dynamically (linker-) created sections, we generally need to keep track
62 of the place a symbol or expression got allocated to. This is done via hash
63 tables that store entries of the following type. */
65 struct elfNN_ia64_dyn_sym_info
67 /* The addend for which this entry is relevant. */
70 /* Next addend in the list. */
71 struct elfNN_ia64_dyn_sym_info
*next
;
75 bfd_vma pltoff_offset
;
79 bfd_vma dtpmod_offset
;
80 bfd_vma dtprel_offset
;
82 /* The symbol table entry, if any, that this was derrived from. */
83 struct elf_link_hash_entry
*h
;
85 /* Used to count non-got, non-plt relocations for delayed sizing
86 of relocation sections. */
87 struct elfNN_ia64_dyn_reloc_entry
89 struct elfNN_ia64_dyn_reloc_entry
*next
;
95 /* TRUE when the section contents have been updated. */
96 unsigned got_done
: 1;
97 unsigned fptr_done
: 1;
98 unsigned pltoff_done
: 1;
99 unsigned tprel_done
: 1;
100 unsigned dtpmod_done
: 1;
101 unsigned dtprel_done
: 1;
103 /* TRUE for the different kinds of linker data we want created. */
104 unsigned want_got
: 1;
105 unsigned want_gotx
: 1;
106 unsigned want_fptr
: 1;
107 unsigned want_ltoff_fptr
: 1;
108 unsigned want_plt
: 1;
109 unsigned want_plt2
: 1;
110 unsigned want_pltoff
: 1;
111 unsigned want_tprel
: 1;
112 unsigned want_dtpmod
: 1;
113 unsigned want_dtprel
: 1;
116 struct elfNN_ia64_local_hash_entry
118 struct bfd_hash_entry root
;
119 struct elfNN_ia64_dyn_sym_info
*info
;
121 /* TRUE if this hash entry's addends was translated for
122 SHF_MERGE optimization. */
123 unsigned sec_merge_done
: 1;
126 struct elfNN_ia64_local_hash_table
128 struct bfd_hash_table root
;
129 /* No additional fields for now. */
132 struct elfNN_ia64_link_hash_entry
134 struct elf_link_hash_entry root
;
135 struct elfNN_ia64_dyn_sym_info
*info
;
138 struct elfNN_ia64_link_hash_table
140 /* The main hash table. */
141 struct elf_link_hash_table root
;
143 asection
*got_sec
; /* the linkage table section (or NULL) */
144 asection
*rel_got_sec
; /* dynamic relocation section for same */
145 asection
*fptr_sec
; /* function descriptor table (or NULL) */
146 asection
*rel_fptr_sec
; /* dynamic relocation section for same */
147 asection
*plt_sec
; /* the primary plt section (or NULL) */
148 asection
*pltoff_sec
; /* private descriptors for plt (or NULL) */
149 asection
*rel_pltoff_sec
; /* dynamic relocation section for same */
151 bfd_size_type minplt_entries
; /* number of minplt entries */
152 unsigned reltext
: 1; /* are there relocs against readonly sections? */
153 unsigned self_dtpmod_done
: 1;/* has self DTPMOD entry been finished? */
154 bfd_vma self_dtpmod_offset
; /* .got offset to self DTPMOD entry */
156 struct elfNN_ia64_local_hash_table loc_hash_table
;
159 struct elfNN_ia64_allocate_data
161 struct bfd_link_info
*info
;
165 #define elfNN_ia64_hash_table(p) \
166 ((struct elfNN_ia64_link_hash_table *) ((p)->hash))
168 static bfd_reloc_status_type elfNN_ia64_reloc
169 PARAMS ((bfd
*abfd
, arelent
*reloc
, asymbol
*sym
, PTR data
,
170 asection
*input_section
, bfd
*output_bfd
, char **error_message
));
171 static reloc_howto_type
* lookup_howto
172 PARAMS ((unsigned int rtype
));
173 static reloc_howto_type
*elfNN_ia64_reloc_type_lookup
174 PARAMS ((bfd
*abfd
, bfd_reloc_code_real_type bfd_code
));
175 static void elfNN_ia64_info_to_howto
176 PARAMS ((bfd
*abfd
, arelent
*bfd_reloc
, Elf_Internal_Rela
*elf_reloc
));
177 static bfd_boolean elfNN_ia64_relax_section
178 PARAMS((bfd
*abfd
, asection
*sec
, struct bfd_link_info
*link_info
,
179 bfd_boolean
*again
));
180 static void elfNN_ia64_relax_ldxmov
181 PARAMS((bfd
*abfd
, bfd_byte
*contents
, bfd_vma off
));
182 static bfd_boolean is_unwind_section_name
183 PARAMS ((bfd
*abfd
, const char *));
184 static bfd_boolean elfNN_ia64_section_from_shdr
185 PARAMS ((bfd
*, Elf_Internal_Shdr
*, const char *));
186 static bfd_boolean elfNN_ia64_section_flags
187 PARAMS ((flagword
*, Elf_Internal_Shdr
*));
188 static bfd_boolean elfNN_ia64_fake_sections
189 PARAMS ((bfd
*abfd
, Elf_Internal_Shdr
*hdr
, asection
*sec
));
190 static void elfNN_ia64_final_write_processing
191 PARAMS ((bfd
*abfd
, bfd_boolean linker
));
192 static bfd_boolean elfNN_ia64_add_symbol_hook
193 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, const Elf_Internal_Sym
*sym
,
194 const char **namep
, flagword
*flagsp
, asection
**secp
,
196 static int elfNN_ia64_additional_program_headers
197 PARAMS ((bfd
*abfd
));
198 static bfd_boolean elfNN_ia64_modify_segment_map
200 static bfd_boolean elfNN_ia64_is_local_label_name
201 PARAMS ((bfd
*abfd
, const char *name
));
202 static bfd_boolean elfNN_ia64_dynamic_symbol_p
203 PARAMS ((struct elf_link_hash_entry
*h
, struct bfd_link_info
*info
));
204 static bfd_boolean elfNN_ia64_local_hash_table_init
205 PARAMS ((struct elfNN_ia64_local_hash_table
*ht
, bfd
*abfd
,
206 new_hash_entry_func
new));
207 static struct bfd_hash_entry
*elfNN_ia64_new_loc_hash_entry
208 PARAMS ((struct bfd_hash_entry
*entry
, struct bfd_hash_table
*table
,
209 const char *string
));
210 static struct bfd_hash_entry
*elfNN_ia64_new_elf_hash_entry
211 PARAMS ((struct bfd_hash_entry
*entry
, struct bfd_hash_table
*table
,
212 const char *string
));
213 static void elfNN_ia64_hash_copy_indirect
214 PARAMS ((struct elf_backend_data
*, struct elf_link_hash_entry
*,
215 struct elf_link_hash_entry
*));
216 static void elfNN_ia64_hash_hide_symbol
217 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*, bfd_boolean
));
218 static struct bfd_link_hash_table
*elfNN_ia64_hash_table_create
219 PARAMS ((bfd
*abfd
));
220 static struct elfNN_ia64_local_hash_entry
*elfNN_ia64_local_hash_lookup
221 PARAMS ((struct elfNN_ia64_local_hash_table
*table
, const char *string
,
222 bfd_boolean create
, bfd_boolean copy
));
223 static bfd_boolean elfNN_ia64_global_dyn_sym_thunk
224 PARAMS ((struct bfd_hash_entry
*, PTR
));
225 static bfd_boolean elfNN_ia64_local_dyn_sym_thunk
226 PARAMS ((struct bfd_hash_entry
*, PTR
));
227 static void elfNN_ia64_dyn_sym_traverse
228 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
229 bfd_boolean (*func
) (struct elfNN_ia64_dyn_sym_info
*, PTR
),
231 static bfd_boolean elfNN_ia64_create_dynamic_sections
232 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
233 static struct elfNN_ia64_local_hash_entry
* get_local_sym_hash
234 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
235 bfd
*abfd
, const Elf_Internal_Rela
*rel
, bfd_boolean create
));
236 static struct elfNN_ia64_dyn_sym_info
* get_dyn_sym_info
237 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
238 struct elf_link_hash_entry
*h
,
239 bfd
*abfd
, const Elf_Internal_Rela
*rel
, bfd_boolean create
));
240 static asection
*get_got
241 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
242 struct elfNN_ia64_link_hash_table
*ia64_info
));
243 static asection
*get_fptr
244 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
245 struct elfNN_ia64_link_hash_table
*ia64_info
));
246 static asection
*get_pltoff
247 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
248 struct elfNN_ia64_link_hash_table
*ia64_info
));
249 static asection
*get_reloc_section
250 PARAMS ((bfd
*abfd
, struct elfNN_ia64_link_hash_table
*ia64_info
,
251 asection
*sec
, bfd_boolean create
));
252 static bfd_boolean count_dyn_reloc
253 PARAMS ((bfd
*abfd
, struct elfNN_ia64_dyn_sym_info
*dyn_i
,
254 asection
*srel
, int type
));
255 static bfd_boolean elfNN_ia64_check_relocs
256 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
257 const Elf_Internal_Rela
*relocs
));
258 static bfd_boolean elfNN_ia64_adjust_dynamic_symbol
259 PARAMS ((struct bfd_link_info
*info
, struct elf_link_hash_entry
*h
));
260 static long global_sym_index
261 PARAMS ((struct elf_link_hash_entry
*h
));
262 static bfd_boolean allocate_fptr
263 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
264 static bfd_boolean allocate_global_data_got
265 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
266 static bfd_boolean allocate_global_fptr_got
267 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
268 static bfd_boolean allocate_local_got
269 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
270 static bfd_boolean allocate_pltoff_entries
271 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
272 static bfd_boolean allocate_plt_entries
273 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
274 static bfd_boolean allocate_plt2_entries
275 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
276 static bfd_boolean allocate_dynrel_entries
277 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
278 static bfd_boolean elfNN_ia64_size_dynamic_sections
279 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
));
280 static bfd_reloc_status_type elfNN_ia64_install_value
281 PARAMS ((bfd
*abfd
, bfd_byte
*hit_addr
, bfd_vma val
, unsigned int r_type
));
282 static void elfNN_ia64_install_dyn_reloc
283 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
284 asection
*srel
, bfd_vma offset
, unsigned int type
,
285 long dynindx
, bfd_vma addend
));
286 static bfd_vma set_got_entry
287 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
288 struct elfNN_ia64_dyn_sym_info
*dyn_i
, long dynindx
,
289 bfd_vma addend
, bfd_vma value
, unsigned int dyn_r_type
));
290 static bfd_vma set_fptr_entry
291 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
292 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
294 static bfd_vma set_pltoff_entry
295 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
296 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
297 bfd_vma value
, bfd_boolean
));
298 static bfd_vma elfNN_ia64_tprel_base
299 PARAMS ((struct bfd_link_info
*info
));
300 static bfd_vma elfNN_ia64_dtprel_base
301 PARAMS ((struct bfd_link_info
*info
));
302 static int elfNN_ia64_unwind_entry_compare
303 PARAMS ((const PTR
, const PTR
));
304 static bfd_boolean elfNN_ia64_choose_gp
305 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
306 static bfd_boolean elfNN_ia64_final_link
307 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
308 static bfd_boolean elfNN_ia64_relocate_section
309 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
, bfd
*input_bfd
,
310 asection
*input_section
, bfd_byte
*contents
,
311 Elf_Internal_Rela
*relocs
, Elf_Internal_Sym
*local_syms
,
312 asection
**local_sections
));
313 static bfd_boolean elfNN_ia64_finish_dynamic_symbol
314 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
,
315 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*sym
));
316 static bfd_boolean elfNN_ia64_finish_dynamic_sections
317 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
318 static bfd_boolean elfNN_ia64_set_private_flags
319 PARAMS ((bfd
*abfd
, flagword flags
));
320 static bfd_boolean elfNN_ia64_merge_private_bfd_data
321 PARAMS ((bfd
*ibfd
, bfd
*obfd
));
322 static bfd_boolean elfNN_ia64_print_private_bfd_data
323 PARAMS ((bfd
*abfd
, PTR ptr
));
324 static enum elf_reloc_type_class elfNN_ia64_reloc_type_class
325 PARAMS ((const Elf_Internal_Rela
*));
326 static bfd_boolean elfNN_ia64_hpux_vec
327 PARAMS ((const bfd_target
*vec
));
328 static void elfNN_hpux_post_process_headers
329 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
330 bfd_boolean elfNN_hpux_backend_section_from_bfd_section
331 PARAMS ((bfd
*abfd
, asection
*sec
, int *retval
));
333 /* ia64-specific relocation. */
335 /* Perform a relocation. Not much to do here as all the hard work is
336 done in elfNN_ia64_final_link_relocate. */
337 static bfd_reloc_status_type
338 elfNN_ia64_reloc (abfd
, reloc
, sym
, data
, input_section
,
339 output_bfd
, error_message
)
340 bfd
*abfd ATTRIBUTE_UNUSED
;
342 asymbol
*sym ATTRIBUTE_UNUSED
;
343 PTR data ATTRIBUTE_UNUSED
;
344 asection
*input_section
;
346 char **error_message
;
350 reloc
->address
+= input_section
->output_offset
;
354 if (input_section
->flags
& SEC_DEBUGGING
)
355 return bfd_reloc_continue
;
357 *error_message
= "Unsupported call to elfNN_ia64_reloc";
358 return bfd_reloc_notsupported
;
361 #define IA64_HOWTO(TYPE, NAME, SIZE, PCREL, IN) \
362 HOWTO (TYPE, 0, SIZE, 0, PCREL, 0, complain_overflow_signed, \
363 elfNN_ia64_reloc, NAME, FALSE, 0, -1, IN)
365 /* This table has to be sorted according to increasing number of the
367 static reloc_howto_type ia64_howto_table
[] =
369 IA64_HOWTO (R_IA64_NONE
, "NONE", 0, FALSE
, TRUE
),
371 IA64_HOWTO (R_IA64_IMM14
, "IMM14", 0, FALSE
, TRUE
),
372 IA64_HOWTO (R_IA64_IMM22
, "IMM22", 0, FALSE
, TRUE
),
373 IA64_HOWTO (R_IA64_IMM64
, "IMM64", 0, FALSE
, TRUE
),
374 IA64_HOWTO (R_IA64_DIR32MSB
, "DIR32MSB", 2, FALSE
, TRUE
),
375 IA64_HOWTO (R_IA64_DIR32LSB
, "DIR32LSB", 2, FALSE
, TRUE
),
376 IA64_HOWTO (R_IA64_DIR64MSB
, "DIR64MSB", 4, FALSE
, TRUE
),
377 IA64_HOWTO (R_IA64_DIR64LSB
, "DIR64LSB", 4, FALSE
, TRUE
),
379 IA64_HOWTO (R_IA64_GPREL22
, "GPREL22", 0, FALSE
, TRUE
),
380 IA64_HOWTO (R_IA64_GPREL64I
, "GPREL64I", 0, FALSE
, TRUE
),
381 IA64_HOWTO (R_IA64_GPREL32MSB
, "GPREL32MSB", 2, FALSE
, TRUE
),
382 IA64_HOWTO (R_IA64_GPREL32LSB
, "GPREL32LSB", 2, FALSE
, TRUE
),
383 IA64_HOWTO (R_IA64_GPREL64MSB
, "GPREL64MSB", 4, FALSE
, TRUE
),
384 IA64_HOWTO (R_IA64_GPREL64LSB
, "GPREL64LSB", 4, FALSE
, TRUE
),
386 IA64_HOWTO (R_IA64_LTOFF22
, "LTOFF22", 0, FALSE
, TRUE
),
387 IA64_HOWTO (R_IA64_LTOFF64I
, "LTOFF64I", 0, FALSE
, TRUE
),
389 IA64_HOWTO (R_IA64_PLTOFF22
, "PLTOFF22", 0, FALSE
, TRUE
),
390 IA64_HOWTO (R_IA64_PLTOFF64I
, "PLTOFF64I", 0, FALSE
, TRUE
),
391 IA64_HOWTO (R_IA64_PLTOFF64MSB
, "PLTOFF64MSB", 4, FALSE
, TRUE
),
392 IA64_HOWTO (R_IA64_PLTOFF64LSB
, "PLTOFF64LSB", 4, FALSE
, TRUE
),
394 IA64_HOWTO (R_IA64_FPTR64I
, "FPTR64I", 0, FALSE
, TRUE
),
395 IA64_HOWTO (R_IA64_FPTR32MSB
, "FPTR32MSB", 2, FALSE
, TRUE
),
396 IA64_HOWTO (R_IA64_FPTR32LSB
, "FPTR32LSB", 2, FALSE
, TRUE
),
397 IA64_HOWTO (R_IA64_FPTR64MSB
, "FPTR64MSB", 4, FALSE
, TRUE
),
398 IA64_HOWTO (R_IA64_FPTR64LSB
, "FPTR64LSB", 4, FALSE
, TRUE
),
400 IA64_HOWTO (R_IA64_PCREL60B
, "PCREL60B", 0, TRUE
, TRUE
),
401 IA64_HOWTO (R_IA64_PCREL21B
, "PCREL21B", 0, TRUE
, TRUE
),
402 IA64_HOWTO (R_IA64_PCREL21M
, "PCREL21M", 0, TRUE
, TRUE
),
403 IA64_HOWTO (R_IA64_PCREL21F
, "PCREL21F", 0, TRUE
, TRUE
),
404 IA64_HOWTO (R_IA64_PCREL32MSB
, "PCREL32MSB", 2, TRUE
, TRUE
),
405 IA64_HOWTO (R_IA64_PCREL32LSB
, "PCREL32LSB", 2, TRUE
, TRUE
),
406 IA64_HOWTO (R_IA64_PCREL64MSB
, "PCREL64MSB", 4, TRUE
, TRUE
),
407 IA64_HOWTO (R_IA64_PCREL64LSB
, "PCREL64LSB", 4, TRUE
, TRUE
),
409 IA64_HOWTO (R_IA64_LTOFF_FPTR22
, "LTOFF_FPTR22", 0, FALSE
, TRUE
),
410 IA64_HOWTO (R_IA64_LTOFF_FPTR64I
, "LTOFF_FPTR64I", 0, FALSE
, TRUE
),
411 IA64_HOWTO (R_IA64_LTOFF_FPTR32MSB
, "LTOFF_FPTR32MSB", 2, FALSE
, TRUE
),
412 IA64_HOWTO (R_IA64_LTOFF_FPTR32LSB
, "LTOFF_FPTR32LSB", 2, FALSE
, TRUE
),
413 IA64_HOWTO (R_IA64_LTOFF_FPTR64MSB
, "LTOFF_FPTR64MSB", 4, FALSE
, TRUE
),
414 IA64_HOWTO (R_IA64_LTOFF_FPTR64LSB
, "LTOFF_FPTR64LSB", 4, FALSE
, TRUE
),
416 IA64_HOWTO (R_IA64_SEGREL32MSB
, "SEGREL32MSB", 2, FALSE
, TRUE
),
417 IA64_HOWTO (R_IA64_SEGREL32LSB
, "SEGREL32LSB", 2, FALSE
, TRUE
),
418 IA64_HOWTO (R_IA64_SEGREL64MSB
, "SEGREL64MSB", 4, FALSE
, TRUE
),
419 IA64_HOWTO (R_IA64_SEGREL64LSB
, "SEGREL64LSB", 4, FALSE
, TRUE
),
421 IA64_HOWTO (R_IA64_SECREL32MSB
, "SECREL32MSB", 2, FALSE
, TRUE
),
422 IA64_HOWTO (R_IA64_SECREL32LSB
, "SECREL32LSB", 2, FALSE
, TRUE
),
423 IA64_HOWTO (R_IA64_SECREL64MSB
, "SECREL64MSB", 4, FALSE
, TRUE
),
424 IA64_HOWTO (R_IA64_SECREL64LSB
, "SECREL64LSB", 4, FALSE
, TRUE
),
426 IA64_HOWTO (R_IA64_REL32MSB
, "REL32MSB", 2, FALSE
, TRUE
),
427 IA64_HOWTO (R_IA64_REL32LSB
, "REL32LSB", 2, FALSE
, TRUE
),
428 IA64_HOWTO (R_IA64_REL64MSB
, "REL64MSB", 4, FALSE
, TRUE
),
429 IA64_HOWTO (R_IA64_REL64LSB
, "REL64LSB", 4, FALSE
, TRUE
),
431 IA64_HOWTO (R_IA64_LTV32MSB
, "LTV32MSB", 2, FALSE
, TRUE
),
432 IA64_HOWTO (R_IA64_LTV32LSB
, "LTV32LSB", 2, FALSE
, TRUE
),
433 IA64_HOWTO (R_IA64_LTV64MSB
, "LTV64MSB", 4, FALSE
, TRUE
),
434 IA64_HOWTO (R_IA64_LTV64LSB
, "LTV64LSB", 4, FALSE
, TRUE
),
436 IA64_HOWTO (R_IA64_PCREL21BI
, "PCREL21BI", 0, TRUE
, TRUE
),
437 IA64_HOWTO (R_IA64_PCREL22
, "PCREL22", 0, TRUE
, TRUE
),
438 IA64_HOWTO (R_IA64_PCREL64I
, "PCREL64I", 0, TRUE
, TRUE
),
440 IA64_HOWTO (R_IA64_IPLTMSB
, "IPLTMSB", 4, FALSE
, TRUE
),
441 IA64_HOWTO (R_IA64_IPLTLSB
, "IPLTLSB", 4, FALSE
, TRUE
),
442 IA64_HOWTO (R_IA64_COPY
, "COPY", 4, FALSE
, TRUE
),
443 IA64_HOWTO (R_IA64_LTOFF22X
, "LTOFF22X", 0, FALSE
, TRUE
),
444 IA64_HOWTO (R_IA64_LDXMOV
, "LDXMOV", 0, FALSE
, TRUE
),
446 IA64_HOWTO (R_IA64_TPREL14
, "TPREL14", 0, FALSE
, FALSE
),
447 IA64_HOWTO (R_IA64_TPREL22
, "TPREL22", 0, FALSE
, FALSE
),
448 IA64_HOWTO (R_IA64_TPREL64I
, "TPREL64I", 0, FALSE
, FALSE
),
449 IA64_HOWTO (R_IA64_TPREL64MSB
, "TPREL64MSB", 8, FALSE
, FALSE
),
450 IA64_HOWTO (R_IA64_TPREL64LSB
, "TPREL64LSB", 8, FALSE
, FALSE
),
451 IA64_HOWTO (R_IA64_LTOFF_TPREL22
, "LTOFF_TPREL22", 0, FALSE
, FALSE
),
453 IA64_HOWTO (R_IA64_DTPMOD64MSB
, "TPREL64MSB", 8, FALSE
, FALSE
),
454 IA64_HOWTO (R_IA64_DTPMOD64LSB
, "TPREL64LSB", 8, FALSE
, FALSE
),
455 IA64_HOWTO (R_IA64_LTOFF_DTPMOD22
, "LTOFF_DTPMOD22", 0, FALSE
, FALSE
),
457 IA64_HOWTO (R_IA64_DTPREL14
, "DTPREL14", 0, FALSE
, FALSE
),
458 IA64_HOWTO (R_IA64_DTPREL22
, "DTPREL22", 0, FALSE
, FALSE
),
459 IA64_HOWTO (R_IA64_DTPREL64I
, "DTPREL64I", 0, FALSE
, FALSE
),
460 IA64_HOWTO (R_IA64_DTPREL32MSB
, "DTPREL32MSB", 4, FALSE
, FALSE
),
461 IA64_HOWTO (R_IA64_DTPREL32LSB
, "DTPREL32LSB", 4, FALSE
, FALSE
),
462 IA64_HOWTO (R_IA64_DTPREL64MSB
, "DTPREL64MSB", 8, FALSE
, FALSE
),
463 IA64_HOWTO (R_IA64_DTPREL64LSB
, "DTPREL64LSB", 8, FALSE
, FALSE
),
464 IA64_HOWTO (R_IA64_LTOFF_DTPREL22
, "LTOFF_DTPREL22", 0, FALSE
, FALSE
),
467 static unsigned char elf_code_to_howto_index
[R_IA64_MAX_RELOC_CODE
+ 1];
469 /* Given a BFD reloc type, return the matching HOWTO structure. */
471 static reloc_howto_type
*
475 static int inited
= 0;
482 memset (elf_code_to_howto_index
, 0xff, sizeof (elf_code_to_howto_index
));
483 for (i
= 0; i
< NELEMS (ia64_howto_table
); ++i
)
484 elf_code_to_howto_index
[ia64_howto_table
[i
].type
] = i
;
487 BFD_ASSERT (rtype
<= R_IA64_MAX_RELOC_CODE
);
488 i
= elf_code_to_howto_index
[rtype
];
489 if (i
>= NELEMS (ia64_howto_table
))
491 return ia64_howto_table
+ i
;
494 static reloc_howto_type
*
495 elfNN_ia64_reloc_type_lookup (abfd
, bfd_code
)
496 bfd
*abfd ATTRIBUTE_UNUSED
;
497 bfd_reloc_code_real_type bfd_code
;
503 case BFD_RELOC_NONE
: rtype
= R_IA64_NONE
; break;
505 case BFD_RELOC_IA64_IMM14
: rtype
= R_IA64_IMM14
; break;
506 case BFD_RELOC_IA64_IMM22
: rtype
= R_IA64_IMM22
; break;
507 case BFD_RELOC_IA64_IMM64
: rtype
= R_IA64_IMM64
; break;
509 case BFD_RELOC_IA64_DIR32MSB
: rtype
= R_IA64_DIR32MSB
; break;
510 case BFD_RELOC_IA64_DIR32LSB
: rtype
= R_IA64_DIR32LSB
; break;
511 case BFD_RELOC_IA64_DIR64MSB
: rtype
= R_IA64_DIR64MSB
; break;
512 case BFD_RELOC_IA64_DIR64LSB
: rtype
= R_IA64_DIR64LSB
; break;
514 case BFD_RELOC_IA64_GPREL22
: rtype
= R_IA64_GPREL22
; break;
515 case BFD_RELOC_IA64_GPREL64I
: rtype
= R_IA64_GPREL64I
; break;
516 case BFD_RELOC_IA64_GPREL32MSB
: rtype
= R_IA64_GPREL32MSB
; break;
517 case BFD_RELOC_IA64_GPREL32LSB
: rtype
= R_IA64_GPREL32LSB
; break;
518 case BFD_RELOC_IA64_GPREL64MSB
: rtype
= R_IA64_GPREL64MSB
; break;
519 case BFD_RELOC_IA64_GPREL64LSB
: rtype
= R_IA64_GPREL64LSB
; break;
521 case BFD_RELOC_IA64_LTOFF22
: rtype
= R_IA64_LTOFF22
; break;
522 case BFD_RELOC_IA64_LTOFF64I
: rtype
= R_IA64_LTOFF64I
; break;
524 case BFD_RELOC_IA64_PLTOFF22
: rtype
= R_IA64_PLTOFF22
; break;
525 case BFD_RELOC_IA64_PLTOFF64I
: rtype
= R_IA64_PLTOFF64I
; break;
526 case BFD_RELOC_IA64_PLTOFF64MSB
: rtype
= R_IA64_PLTOFF64MSB
; break;
527 case BFD_RELOC_IA64_PLTOFF64LSB
: rtype
= R_IA64_PLTOFF64LSB
; break;
528 case BFD_RELOC_IA64_FPTR64I
: rtype
= R_IA64_FPTR64I
; break;
529 case BFD_RELOC_IA64_FPTR32MSB
: rtype
= R_IA64_FPTR32MSB
; break;
530 case BFD_RELOC_IA64_FPTR32LSB
: rtype
= R_IA64_FPTR32LSB
; break;
531 case BFD_RELOC_IA64_FPTR64MSB
: rtype
= R_IA64_FPTR64MSB
; break;
532 case BFD_RELOC_IA64_FPTR64LSB
: rtype
= R_IA64_FPTR64LSB
; break;
534 case BFD_RELOC_IA64_PCREL21B
: rtype
= R_IA64_PCREL21B
; break;
535 case BFD_RELOC_IA64_PCREL21BI
: rtype
= R_IA64_PCREL21BI
; break;
536 case BFD_RELOC_IA64_PCREL21M
: rtype
= R_IA64_PCREL21M
; break;
537 case BFD_RELOC_IA64_PCREL21F
: rtype
= R_IA64_PCREL21F
; break;
538 case BFD_RELOC_IA64_PCREL22
: rtype
= R_IA64_PCREL22
; break;
539 case BFD_RELOC_IA64_PCREL60B
: rtype
= R_IA64_PCREL60B
; break;
540 case BFD_RELOC_IA64_PCREL64I
: rtype
= R_IA64_PCREL64I
; break;
541 case BFD_RELOC_IA64_PCREL32MSB
: rtype
= R_IA64_PCREL32MSB
; break;
542 case BFD_RELOC_IA64_PCREL32LSB
: rtype
= R_IA64_PCREL32LSB
; break;
543 case BFD_RELOC_IA64_PCREL64MSB
: rtype
= R_IA64_PCREL64MSB
; break;
544 case BFD_RELOC_IA64_PCREL64LSB
: rtype
= R_IA64_PCREL64LSB
; break;
546 case BFD_RELOC_IA64_LTOFF_FPTR22
: rtype
= R_IA64_LTOFF_FPTR22
; break;
547 case BFD_RELOC_IA64_LTOFF_FPTR64I
: rtype
= R_IA64_LTOFF_FPTR64I
; break;
548 case BFD_RELOC_IA64_LTOFF_FPTR32MSB
: rtype
= R_IA64_LTOFF_FPTR32MSB
; break;
549 case BFD_RELOC_IA64_LTOFF_FPTR32LSB
: rtype
= R_IA64_LTOFF_FPTR32LSB
; break;
550 case BFD_RELOC_IA64_LTOFF_FPTR64MSB
: rtype
= R_IA64_LTOFF_FPTR64MSB
; break;
551 case BFD_RELOC_IA64_LTOFF_FPTR64LSB
: rtype
= R_IA64_LTOFF_FPTR64LSB
; break;
553 case BFD_RELOC_IA64_SEGREL32MSB
: rtype
= R_IA64_SEGREL32MSB
; break;
554 case BFD_RELOC_IA64_SEGREL32LSB
: rtype
= R_IA64_SEGREL32LSB
; break;
555 case BFD_RELOC_IA64_SEGREL64MSB
: rtype
= R_IA64_SEGREL64MSB
; break;
556 case BFD_RELOC_IA64_SEGREL64LSB
: rtype
= R_IA64_SEGREL64LSB
; break;
558 case BFD_RELOC_IA64_SECREL32MSB
: rtype
= R_IA64_SECREL32MSB
; break;
559 case BFD_RELOC_IA64_SECREL32LSB
: rtype
= R_IA64_SECREL32LSB
; break;
560 case BFD_RELOC_IA64_SECREL64MSB
: rtype
= R_IA64_SECREL64MSB
; break;
561 case BFD_RELOC_IA64_SECREL64LSB
: rtype
= R_IA64_SECREL64LSB
; break;
563 case BFD_RELOC_IA64_REL32MSB
: rtype
= R_IA64_REL32MSB
; break;
564 case BFD_RELOC_IA64_REL32LSB
: rtype
= R_IA64_REL32LSB
; break;
565 case BFD_RELOC_IA64_REL64MSB
: rtype
= R_IA64_REL64MSB
; break;
566 case BFD_RELOC_IA64_REL64LSB
: rtype
= R_IA64_REL64LSB
; break;
568 case BFD_RELOC_IA64_LTV32MSB
: rtype
= R_IA64_LTV32MSB
; break;
569 case BFD_RELOC_IA64_LTV32LSB
: rtype
= R_IA64_LTV32LSB
; break;
570 case BFD_RELOC_IA64_LTV64MSB
: rtype
= R_IA64_LTV64MSB
; break;
571 case BFD_RELOC_IA64_LTV64LSB
: rtype
= R_IA64_LTV64LSB
; break;
573 case BFD_RELOC_IA64_IPLTMSB
: rtype
= R_IA64_IPLTMSB
; break;
574 case BFD_RELOC_IA64_IPLTLSB
: rtype
= R_IA64_IPLTLSB
; break;
575 case BFD_RELOC_IA64_COPY
: rtype
= R_IA64_COPY
; break;
576 case BFD_RELOC_IA64_LTOFF22X
: rtype
= R_IA64_LTOFF22X
; break;
577 case BFD_RELOC_IA64_LDXMOV
: rtype
= R_IA64_LDXMOV
; break;
579 case BFD_RELOC_IA64_TPREL14
: rtype
= R_IA64_TPREL14
; break;
580 case BFD_RELOC_IA64_TPREL22
: rtype
= R_IA64_TPREL22
; break;
581 case BFD_RELOC_IA64_TPREL64I
: rtype
= R_IA64_TPREL64I
; break;
582 case BFD_RELOC_IA64_TPREL64MSB
: rtype
= R_IA64_TPREL64MSB
; break;
583 case BFD_RELOC_IA64_TPREL64LSB
: rtype
= R_IA64_TPREL64LSB
; break;
584 case BFD_RELOC_IA64_LTOFF_TPREL22
: rtype
= R_IA64_LTOFF_TPREL22
; break;
586 case BFD_RELOC_IA64_DTPMOD64MSB
: rtype
= R_IA64_DTPMOD64MSB
; break;
587 case BFD_RELOC_IA64_DTPMOD64LSB
: rtype
= R_IA64_DTPMOD64LSB
; break;
588 case BFD_RELOC_IA64_LTOFF_DTPMOD22
: rtype
= R_IA64_LTOFF_DTPMOD22
; break;
590 case BFD_RELOC_IA64_DTPREL14
: rtype
= R_IA64_DTPREL14
; break;
591 case BFD_RELOC_IA64_DTPREL22
: rtype
= R_IA64_DTPREL22
; break;
592 case BFD_RELOC_IA64_DTPREL64I
: rtype
= R_IA64_DTPREL64I
; break;
593 case BFD_RELOC_IA64_DTPREL32MSB
: rtype
= R_IA64_DTPREL32MSB
; break;
594 case BFD_RELOC_IA64_DTPREL32LSB
: rtype
= R_IA64_DTPREL32LSB
; break;
595 case BFD_RELOC_IA64_DTPREL64MSB
: rtype
= R_IA64_DTPREL64MSB
; break;
596 case BFD_RELOC_IA64_DTPREL64LSB
: rtype
= R_IA64_DTPREL64LSB
; break;
597 case BFD_RELOC_IA64_LTOFF_DTPREL22
: rtype
= R_IA64_LTOFF_DTPREL22
; break;
601 return lookup_howto (rtype
);
604 /* Given a ELF reloc, return the matching HOWTO structure. */
607 elfNN_ia64_info_to_howto (abfd
, bfd_reloc
, elf_reloc
)
608 bfd
*abfd ATTRIBUTE_UNUSED
;
610 Elf_Internal_Rela
*elf_reloc
;
613 = lookup_howto ((unsigned int) ELFNN_R_TYPE (elf_reloc
->r_info
));
616 #define PLT_HEADER_SIZE (3 * 16)
617 #define PLT_MIN_ENTRY_SIZE (1 * 16)
618 #define PLT_FULL_ENTRY_SIZE (2 * 16)
619 #define PLT_RESERVED_WORDS 3
621 static const bfd_byte plt_header
[PLT_HEADER_SIZE
] =
623 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
624 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
625 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
626 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
627 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
628 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
629 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
630 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
631 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
634 static const bfd_byte plt_min_entry
[PLT_MIN_ENTRY_SIZE
] =
636 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
637 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
638 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
641 static const bfd_byte plt_full_entry
[PLT_FULL_ENTRY_SIZE
] =
643 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
644 0x00, 0x41, 0x3c, 0x30, 0x28, 0xc0, /* ld8 r16=[r15],8 */
645 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
646 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
647 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
648 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
651 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
653 static const bfd_byte oor_brl
[16] =
655 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
656 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
657 0x00, 0x00, 0x00, 0xc0
660 /* These functions do relaxation for IA-64 ELF. */
663 elfNN_ia64_relax_section (abfd
, sec
, link_info
, again
)
666 struct bfd_link_info
*link_info
;
671 struct one_fixup
*next
;
677 Elf_Internal_Shdr
*symtab_hdr
;
678 Elf_Internal_Rela
*internal_relocs
;
679 Elf_Internal_Rela
*irel
, *irelend
;
681 Elf_Internal_Sym
*isymbuf
= NULL
;
682 struct elfNN_ia64_link_hash_table
*ia64_info
;
683 struct one_fixup
*fixups
= NULL
;
684 bfd_boolean changed_contents
= FALSE
;
685 bfd_boolean changed_relocs
= FALSE
;
686 bfd_boolean changed_got
= FALSE
;
689 /* Assume we're not going to change any sizes, and we'll only need
693 /* Don't even try to relax for non-ELF outputs. */
694 if (link_info
->hash
->creator
->flavour
!= bfd_target_elf_flavour
)
697 /* Nothing to do if there are no relocations or there is no need for
698 the relax finalize pass. */
699 if ((sec
->flags
& SEC_RELOC
) == 0
700 || sec
->reloc_count
== 0
701 || (link_info
->relax_finalizing
702 && sec
->need_finalize_relax
== 0))
705 /* If this is the first time we have been called for this section,
706 initialize the cooked size. */
707 if (sec
->_cooked_size
== 0)
708 sec
->_cooked_size
= sec
->_raw_size
;
710 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
712 /* Load the relocations for this section. */
713 internal_relocs
= (_bfd_elf_link_read_relocs
714 (abfd
, sec
, (PTR
) NULL
, (Elf_Internal_Rela
*) NULL
,
715 link_info
->keep_memory
));
716 if (internal_relocs
== NULL
)
719 ia64_info
= elfNN_ia64_hash_table (link_info
);
720 irelend
= internal_relocs
+ sec
->reloc_count
;
722 /* Get the section contents. */
723 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
724 contents
= elf_section_data (sec
)->this_hdr
.contents
;
727 contents
= (bfd_byte
*) bfd_malloc (sec
->_raw_size
);
728 if (contents
== NULL
)
731 if (! bfd_get_section_contents (abfd
, sec
, contents
,
732 (file_ptr
) 0, sec
->_raw_size
))
736 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
738 unsigned long r_type
= ELFNN_R_TYPE (irel
->r_info
);
739 bfd_vma symaddr
, reladdr
, trampoff
, toff
, roff
;
743 bfd_boolean is_branch
;
744 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
748 case R_IA64_PCREL21B
:
749 case R_IA64_PCREL21BI
:
750 case R_IA64_PCREL21M
:
751 case R_IA64_PCREL21F
:
752 if (link_info
->relax_finalizing
)
757 case R_IA64_LTOFF22X
:
759 if (!link_info
->relax_finalizing
)
761 sec
->need_finalize_relax
= 1;
771 /* Get the value of the symbol referred to by the reloc. */
772 if (ELFNN_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
774 /* A local symbol. */
775 Elf_Internal_Sym
*isym
;
777 /* Read this BFD's local symbols. */
780 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
782 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
783 symtab_hdr
->sh_info
, 0,
789 isym
= isymbuf
+ ELFNN_R_SYM (irel
->r_info
);
790 if (isym
->st_shndx
== SHN_UNDEF
)
791 continue; /* We can't do anthing with undefined symbols. */
792 else if (isym
->st_shndx
== SHN_ABS
)
793 tsec
= bfd_abs_section_ptr
;
794 else if (isym
->st_shndx
== SHN_COMMON
)
795 tsec
= bfd_com_section_ptr
;
796 else if (isym
->st_shndx
== SHN_IA_64_ANSI_COMMON
)
797 tsec
= bfd_com_section_ptr
;
799 tsec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
801 toff
= isym
->st_value
;
802 dyn_i
= get_dyn_sym_info (ia64_info
, NULL
, abfd
, irel
, FALSE
);
807 struct elf_link_hash_entry
*h
;
809 indx
= ELFNN_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
810 h
= elf_sym_hashes (abfd
)[indx
];
811 BFD_ASSERT (h
!= NULL
);
813 while (h
->root
.type
== bfd_link_hash_indirect
814 || h
->root
.type
== bfd_link_hash_warning
)
815 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
817 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, irel
, FALSE
);
819 /* For branches to dynamic symbols, we're interested instead
820 in a branch to the PLT entry. */
821 if (is_branch
&& dyn_i
&& dyn_i
->want_plt2
)
823 /* Internal branches shouldn't be sent to the PLT.
824 Leave this for now and we'll give an error later. */
825 if (r_type
!= R_IA64_PCREL21B
)
828 tsec
= ia64_info
->plt_sec
;
829 toff
= dyn_i
->plt2_offset
;
830 BFD_ASSERT (irel
->r_addend
== 0);
833 /* Can't do anything else with dynamic symbols. */
834 else if (elfNN_ia64_dynamic_symbol_p (h
, link_info
))
839 /* We can't do anthing with undefined symbols. */
840 if (h
->root
.type
== bfd_link_hash_undefined
841 || h
->root
.type
== bfd_link_hash_undefweak
)
844 tsec
= h
->root
.u
.def
.section
;
845 toff
= h
->root
.u
.def
.value
;
849 if (tsec
->sec_info_type
== ELF_INFO_TYPE_MERGE
)
850 toff
= _bfd_merged_section_offset (abfd
, &tsec
,
851 elf_section_data (tsec
)->sec_info
,
852 toff
+ irel
->r_addend
,
855 toff
+= irel
->r_addend
;
857 symaddr
= tsec
->output_section
->vma
+ tsec
->output_offset
+ toff
;
859 roff
= irel
->r_offset
;
863 reladdr
= (sec
->output_section
->vma
865 + roff
) & (bfd_vma
) -4;
867 /* If the branch is in range, no need to do anything. */
868 if ((bfd_signed_vma
) (symaddr
- reladdr
) >= -0x1000000
869 && (bfd_signed_vma
) (symaddr
- reladdr
) <= 0x0FFFFF0)
872 /* If the branch and target are in the same section, you've
873 got one honking big section and we can't help you. You'll
874 get an error message later. */
878 /* Look for an existing fixup to this address. */
879 for (f
= fixups
; f
; f
= f
->next
)
880 if (f
->tsec
== tsec
&& f
->toff
== toff
)
885 /* Two alternatives: If it's a branch to a PLT entry, we can
886 make a copy of the FULL_PLT entry. Otherwise, we'll have
887 to use a `brl' insn to get where we're going. */
891 if (tsec
== ia64_info
->plt_sec
)
892 size
= sizeof (plt_full_entry
);
895 size
= sizeof (oor_brl
);
898 /* Resize the current section to make room for the new branch. */
899 trampoff
= (sec
->_cooked_size
+ 15) & (bfd_vma
) -16;
900 amt
= trampoff
+ size
;
901 contents
= (bfd_byte
*) bfd_realloc (contents
, amt
);
902 if (contents
== NULL
)
904 sec
->_cooked_size
= amt
;
906 if (tsec
== ia64_info
->plt_sec
)
908 memcpy (contents
+ trampoff
, plt_full_entry
, size
);
910 /* Hijack the old relocation for use as the PLTOFF reloc. */
911 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
913 irel
->r_offset
= trampoff
;
917 memcpy (contents
+ trampoff
, oor_brl
, size
);
918 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
920 irel
->r_offset
= trampoff
+ 2;
923 /* Record the fixup so we don't do it again this section. */
924 f
= (struct one_fixup
*)
925 bfd_malloc ((bfd_size_type
) sizeof (*f
));
929 f
->trampoff
= trampoff
;
934 /* Nop out the reloc, since we're finalizing things here. */
935 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
938 /* Fix up the existing branch to hit the trampoline. Hope like
939 hell this doesn't overflow too. */
940 if (elfNN_ia64_install_value (abfd
, contents
+ roff
,
941 f
->trampoff
- (roff
& (bfd_vma
) -4),
942 r_type
) != bfd_reloc_ok
)
945 changed_contents
= TRUE
;
946 changed_relocs
= TRUE
;
953 bfd
*obfd
= sec
->output_section
->owner
;
954 gp
= _bfd_get_gp_value (obfd
);
957 if (!elfNN_ia64_choose_gp (obfd
, link_info
))
959 gp
= _bfd_get_gp_value (obfd
);
963 /* If the data is out of range, do nothing. */
964 if ((bfd_signed_vma
) (symaddr
- gp
) >= 0x200000
965 ||(bfd_signed_vma
) (symaddr
- gp
) < -0x200000)
968 if (r_type
== R_IA64_LTOFF22X
)
970 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
972 changed_relocs
= TRUE
;
973 if (dyn_i
->want_gotx
)
975 dyn_i
->want_gotx
= 0;
976 changed_got
|= !dyn_i
->want_got
;
981 elfNN_ia64_relax_ldxmov (abfd
, contents
, roff
);
982 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
983 changed_contents
= TRUE
;
984 changed_relocs
= TRUE
;
989 /* ??? If we created fixups, this may push the code segment large
990 enough that the data segment moves, which will change the GP.
991 Reset the GP so that we re-calculate next round. We need to
992 do this at the _beginning_ of the next round; now will not do. */
994 /* Clean up and go home. */
997 struct one_fixup
*f
= fixups
;
998 fixups
= fixups
->next
;
1003 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
1005 if (! link_info
->keep_memory
)
1009 /* Cache the symbols for elf_link_input_bfd. */
1010 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
1014 if (contents
!= NULL
1015 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
1017 if (!changed_contents
&& !link_info
->keep_memory
)
1021 /* Cache the section contents for elf_link_input_bfd. */
1022 elf_section_data (sec
)->this_hdr
.contents
= contents
;
1026 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
1028 if (!changed_relocs
)
1029 free (internal_relocs
);
1031 elf_section_data (sec
)->relocs
= internal_relocs
;
1036 struct elfNN_ia64_allocate_data data
;
1037 data
.info
= link_info
;
1039 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
1041 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
1042 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
1043 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
1044 ia64_info
->got_sec
->_raw_size
= data
.ofs
;
1045 ia64_info
->got_sec
->_cooked_size
= data
.ofs
;
1047 /* ??? Resize .rela.got too. */
1050 if (link_info
->relax_finalizing
)
1051 sec
->need_finalize_relax
= 0;
1053 *again
= changed_contents
|| changed_relocs
;
1057 if (isymbuf
!= NULL
&& (unsigned char *) isymbuf
!= symtab_hdr
->contents
)
1059 if (contents
!= NULL
1060 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
1062 if (internal_relocs
!= NULL
1063 && elf_section_data (sec
)->relocs
!= internal_relocs
)
1064 free (internal_relocs
);
1069 elfNN_ia64_relax_ldxmov (abfd
, contents
, off
)
1075 bfd_vma dword
, insn
;
1077 switch ((int)off
& 0x3)
1079 case 0: shift
= 5; break;
1080 case 1: shift
= 14; off
+= 3; break;
1081 case 2: shift
= 23; off
+= 6; break;
1086 dword
= bfd_get_64 (abfd
, contents
+ off
);
1087 insn
= (dword
>> shift
) & 0x1ffffffffffLL
;
1089 r1
= (insn
>> 6) & 127;
1090 r3
= (insn
>> 20) & 127;
1092 insn
= 0x8000000; /* nop */
1094 insn
= (insn
& 0x7f01fff) | 0x10800000000LL
; /* (qp) mov r1 = r3 */
1096 dword
&= ~(0x1ffffffffffLL
<< shift
);
1097 dword
|= (insn
<< shift
);
1098 bfd_put_64 (abfd
, dword
, contents
+ off
);
1101 /* Return TRUE if NAME is an unwind table section name. */
1103 static inline bfd_boolean
1104 is_unwind_section_name (abfd
, name
)
1108 size_t len1
, len2
, len3
;
1110 if (elfNN_ia64_hpux_vec (abfd
->xvec
)
1111 && !strcmp (name
, ELF_STRING_ia64_unwind_hdr
))
1114 len1
= sizeof (ELF_STRING_ia64_unwind
) - 1;
1115 len2
= sizeof (ELF_STRING_ia64_unwind_info
) - 1;
1116 len3
= sizeof (ELF_STRING_ia64_unwind_once
) - 1;
1117 return ((strncmp (name
, ELF_STRING_ia64_unwind
, len1
) == 0
1118 && strncmp (name
, ELF_STRING_ia64_unwind_info
, len2
) != 0)
1119 || strncmp (name
, ELF_STRING_ia64_unwind_once
, len3
) == 0);
1122 /* Handle an IA-64 specific section when reading an object file. This
1123 is called when elfcode.h finds a section with an unknown type. */
1126 elfNN_ia64_section_from_shdr (abfd
, hdr
, name
)
1128 Elf_Internal_Shdr
*hdr
;
1133 /* There ought to be a place to keep ELF backend specific flags, but
1134 at the moment there isn't one. We just keep track of the
1135 sections by their name, instead. Fortunately, the ABI gives
1136 suggested names for all the MIPS specific sections, so we will
1137 probably get away with this. */
1138 switch (hdr
->sh_type
)
1140 case SHT_IA_64_UNWIND
:
1141 case SHT_IA_64_HP_OPT_ANOT
:
1145 if (strcmp (name
, ELF_STRING_ia64_archext
) != 0)
1153 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
))
1155 newsect
= hdr
->bfd_section
;
1160 /* Convert IA-64 specific section flags to bfd internal section flags. */
1162 /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
1166 elfNN_ia64_section_flags (flags
, hdr
)
1168 Elf_Internal_Shdr
*hdr
;
1170 if (hdr
->sh_flags
& SHF_IA_64_SHORT
)
1171 *flags
|= SEC_SMALL_DATA
;
1176 /* Set the correct type for an IA-64 ELF section. We do this by the
1177 section name, which is a hack, but ought to work. */
1180 elfNN_ia64_fake_sections (abfd
, hdr
, sec
)
1181 bfd
*abfd ATTRIBUTE_UNUSED
;
1182 Elf_Internal_Shdr
*hdr
;
1185 register const char *name
;
1187 name
= bfd_get_section_name (abfd
, sec
);
1189 if (is_unwind_section_name (abfd
, name
))
1191 /* We don't have the sections numbered at this point, so sh_info
1192 is set later, in elfNN_ia64_final_write_processing. */
1193 hdr
->sh_type
= SHT_IA_64_UNWIND
;
1194 hdr
->sh_flags
|= SHF_LINK_ORDER
;
1196 else if (strcmp (name
, ELF_STRING_ia64_archext
) == 0)
1197 hdr
->sh_type
= SHT_IA_64_EXT
;
1198 else if (strcmp (name
, ".HP.opt_annot") == 0)
1199 hdr
->sh_type
= SHT_IA_64_HP_OPT_ANOT
;
1200 else if (strcmp (name
, ".reloc") == 0)
1201 /* This is an ugly, but unfortunately necessary hack that is
1202 needed when producing EFI binaries on IA-64. It tells
1203 elf.c:elf_fake_sections() not to consider ".reloc" as a section
1204 containing ELF relocation info. We need this hack in order to
1205 be able to generate ELF binaries that can be translated into
1206 EFI applications (which are essentially COFF objects). Those
1207 files contain a COFF ".reloc" section inside an ELFNN object,
1208 which would normally cause BFD to segfault because it would
1209 attempt to interpret this section as containing relocation
1210 entries for section "oc". With this hack enabled, ".reloc"
1211 will be treated as a normal data section, which will avoid the
1212 segfault. However, you won't be able to create an ELFNN binary
1213 with a section named "oc" that needs relocations, but that's
1214 the kind of ugly side-effects you get when detecting section
1215 types based on their names... In practice, this limitation is
1216 unlikely to bite. */
1217 hdr
->sh_type
= SHT_PROGBITS
;
1219 if (sec
->flags
& SEC_SMALL_DATA
)
1220 hdr
->sh_flags
|= SHF_IA_64_SHORT
;
1225 /* The final processing done just before writing out an IA-64 ELF
1229 elfNN_ia64_final_write_processing (abfd
, linker
)
1231 bfd_boolean linker ATTRIBUTE_UNUSED
;
1233 Elf_Internal_Shdr
*hdr
;
1235 asection
*text_sect
, *s
;
1238 for (s
= abfd
->sections
; s
; s
= s
->next
)
1240 hdr
= &elf_section_data (s
)->this_hdr
;
1241 switch (hdr
->sh_type
)
1243 case SHT_IA_64_UNWIND
:
1244 /* See comments in gas/config/tc-ia64.c:dot_endp on why we
1246 sname
= bfd_get_section_name (abfd
, s
);
1247 len
= sizeof (ELF_STRING_ia64_unwind
) - 1;
1248 if (sname
&& strncmp (sname
, ELF_STRING_ia64_unwind
, len
) == 0)
1252 if (sname
[0] == '\0')
1253 /* .IA_64.unwind -> .text */
1254 text_sect
= bfd_get_section_by_name (abfd
, ".text");
1256 /* .IA_64.unwindFOO -> FOO */
1257 text_sect
= bfd_get_section_by_name (abfd
, sname
);
1260 && (len
= sizeof (ELF_STRING_ia64_unwind_once
) - 1,
1261 strncmp (sname
, ELF_STRING_ia64_unwind_once
, len
)) == 0)
1263 /* .gnu.linkonce.ia64unw.FOO -> .gnu.linkonce.t.FOO */
1264 size_t len2
= sizeof (".gnu.linkonce.t.") - 1;
1265 char *once_name
= bfd_malloc (len2
+ strlen (sname
+ len
) + 1);
1267 if (once_name
!= NULL
)
1269 memcpy (once_name
, ".gnu.linkonce.t.", len2
);
1270 strcpy (once_name
+ len2
, sname
+ len
);
1271 text_sect
= bfd_get_section_by_name (abfd
, once_name
);
1275 /* Should only happen if we run out of memory, in
1276 which case we're probably toast anyway. Try to
1277 cope by finding the section the slow way. */
1278 for (text_sect
= abfd
->sections
;
1280 text_sect
= text_sect
->next
)
1282 if (strncmp (bfd_section_name (abfd
, text_sect
),
1283 ".gnu.linkonce.t.", len2
) == 0
1284 && strcmp (bfd_section_name (abfd
, text_sect
) + len2
,
1290 /* last resort: fall back on .text */
1291 text_sect
= bfd_get_section_by_name (abfd
, ".text");
1295 /* The IA-64 processor-specific ABI requires setting
1296 sh_link to the unwind section, whereas HP-UX requires
1297 sh_info to do so. For maximum compatibility, we'll
1298 set both for now... */
1299 hdr
->sh_link
= elf_section_data (text_sect
)->this_idx
;
1300 hdr
->sh_info
= elf_section_data (text_sect
)->this_idx
;
1306 if (! elf_flags_init (abfd
))
1308 unsigned long flags
= 0;
1310 if (abfd
->xvec
->byteorder
== BFD_ENDIAN_BIG
)
1311 flags
|= EF_IA_64_BE
;
1312 if (bfd_get_mach (abfd
) == bfd_mach_ia64_elf64
)
1313 flags
|= EF_IA_64_ABI64
;
1315 elf_elfheader(abfd
)->e_flags
= flags
;
1316 elf_flags_init (abfd
) = TRUE
;
1320 /* Hook called by the linker routine which adds symbols from an object
1321 file. We use it to put .comm items in .sbss, and not .bss. */
1324 elfNN_ia64_add_symbol_hook (abfd
, info
, sym
, namep
, flagsp
, secp
, valp
)
1326 struct bfd_link_info
*info
;
1327 const Elf_Internal_Sym
*sym
;
1328 const char **namep ATTRIBUTE_UNUSED
;
1329 flagword
*flagsp ATTRIBUTE_UNUSED
;
1333 if (sym
->st_shndx
== SHN_COMMON
1334 && !info
->relocatable
1335 && sym
->st_size
<= elf_gp_size (abfd
))
1337 /* Common symbols less than or equal to -G nn bytes are
1338 automatically put into .sbss. */
1340 asection
*scomm
= bfd_get_section_by_name (abfd
, ".scommon");
1344 scomm
= bfd_make_section (abfd
, ".scommon");
1346 || !bfd_set_section_flags (abfd
, scomm
, (SEC_ALLOC
1348 | SEC_LINKER_CREATED
)))
1353 *valp
= sym
->st_size
;
1359 /* Return the number of additional phdrs we will need. */
1362 elfNN_ia64_additional_program_headers (abfd
)
1368 /* See if we need a PT_IA_64_ARCHEXT segment. */
1369 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1370 if (s
&& (s
->flags
& SEC_LOAD
))
1373 /* Count how many PT_IA_64_UNWIND segments we need. */
1374 for (s
= abfd
->sections
; s
; s
= s
->next
)
1375 if (is_unwind_section_name (abfd
, s
->name
) && (s
->flags
& SEC_LOAD
))
1382 elfNN_ia64_modify_segment_map (abfd
)
1385 struct elf_segment_map
*m
, **pm
;
1386 Elf_Internal_Shdr
*hdr
;
1389 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1390 all PT_LOAD segments. */
1391 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1392 if (s
&& (s
->flags
& SEC_LOAD
))
1394 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1395 if (m
->p_type
== PT_IA_64_ARCHEXT
)
1399 m
= ((struct elf_segment_map
*)
1400 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1404 m
->p_type
= PT_IA_64_ARCHEXT
;
1408 /* We want to put it after the PHDR and INTERP segments. */
1409 pm
= &elf_tdata (abfd
)->segment_map
;
1411 && ((*pm
)->p_type
== PT_PHDR
1412 || (*pm
)->p_type
== PT_INTERP
))
1420 /* Install PT_IA_64_UNWIND segments, if needed. */
1421 for (s
= abfd
->sections
; s
; s
= s
->next
)
1423 hdr
= &elf_section_data (s
)->this_hdr
;
1424 if (hdr
->sh_type
!= SHT_IA_64_UNWIND
)
1427 if (s
&& (s
->flags
& SEC_LOAD
))
1429 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1430 if (m
->p_type
== PT_IA_64_UNWIND
)
1434 /* Look through all sections in the unwind segment
1435 for a match since there may be multiple sections
1437 for (i
= m
->count
- 1; i
>= 0; --i
)
1438 if (m
->sections
[i
] == s
)
1447 m
= ((struct elf_segment_map
*)
1448 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1452 m
->p_type
= PT_IA_64_UNWIND
;
1457 /* We want to put it last. */
1458 pm
= &elf_tdata (abfd
)->segment_map
;
1466 /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1467 the input sections for each output section in the segment and testing
1468 for SHF_IA_64_NORECOV on each. */
1469 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1470 if (m
->p_type
== PT_LOAD
)
1473 for (i
= m
->count
- 1; i
>= 0; --i
)
1475 struct bfd_link_order
*order
= m
->sections
[i
]->link_order_head
;
1478 if (order
->type
== bfd_indirect_link_order
)
1480 asection
*is
= order
->u
.indirect
.section
;
1481 bfd_vma flags
= elf_section_data(is
)->this_hdr
.sh_flags
;
1482 if (flags
& SHF_IA_64_NORECOV
)
1484 m
->p_flags
|= PF_IA_64_NORECOV
;
1488 order
= order
->next
;
1497 /* According to the Tahoe assembler spec, all labels starting with a
1501 elfNN_ia64_is_local_label_name (abfd
, name
)
1502 bfd
*abfd ATTRIBUTE_UNUSED
;
1505 return name
[0] == '.';
1508 /* Should we do dynamic things to this symbol? */
1511 elfNN_ia64_dynamic_symbol_p (h
, info
)
1512 struct elf_link_hash_entry
*h
;
1513 struct bfd_link_info
*info
;
1518 while (h
->root
.type
== bfd_link_hash_indirect
1519 || h
->root
.type
== bfd_link_hash_warning
)
1520 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1522 if (h
->dynindx
== -1)
1524 switch (ELF_ST_VISIBILITY (h
->other
))
1533 if (h
->root
.type
== bfd_link_hash_undefweak
1534 || h
->root
.type
== bfd_link_hash_defweak
)
1537 /* If it isn't defined locally, then clearly it's dynamic. */
1538 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
1541 /* Identify the cases where name binding rules say it resolves local. */
1542 return !(info
->executable
|| info
->symbolic
);
1546 elfNN_ia64_local_hash_table_init (ht
, abfd
, new)
1547 struct elfNN_ia64_local_hash_table
*ht
;
1548 bfd
*abfd ATTRIBUTE_UNUSED
;
1549 new_hash_entry_func
new;
1551 memset (ht
, 0, sizeof (*ht
));
1552 return bfd_hash_table_init (&ht
->root
, new);
1555 static struct bfd_hash_entry
*
1556 elfNN_ia64_new_loc_hash_entry (entry
, table
, string
)
1557 struct bfd_hash_entry
*entry
;
1558 struct bfd_hash_table
*table
;
1561 struct elfNN_ia64_local_hash_entry
*ret
;
1562 ret
= (struct elfNN_ia64_local_hash_entry
*) entry
;
1564 /* Allocate the structure if it has not already been allocated by a
1567 ret
= bfd_hash_allocate (table
, sizeof (*ret
));
1572 /* Initialize our local data. All zeros, and definitely easier
1573 than setting a handful of bit fields. */
1574 memset (ret
, 0, sizeof (*ret
));
1576 /* Call the allocation method of the superclass. */
1577 ret
= ((struct elfNN_ia64_local_hash_entry
*)
1578 bfd_hash_newfunc ((struct bfd_hash_entry
*) ret
, table
, string
));
1580 return (struct bfd_hash_entry
*) ret
;
1583 static struct bfd_hash_entry
*
1584 elfNN_ia64_new_elf_hash_entry (entry
, table
, string
)
1585 struct bfd_hash_entry
*entry
;
1586 struct bfd_hash_table
*table
;
1589 struct elfNN_ia64_link_hash_entry
*ret
;
1590 ret
= (struct elfNN_ia64_link_hash_entry
*) entry
;
1592 /* Allocate the structure if it has not already been allocated by a
1595 ret
= bfd_hash_allocate (table
, sizeof (*ret
));
1600 /* Initialize our local data. All zeros, and definitely easier
1601 than setting a handful of bit fields. */
1602 memset (ret
, 0, sizeof (*ret
));
1604 /* Call the allocation method of the superclass. */
1605 ret
= ((struct elfNN_ia64_link_hash_entry
*)
1606 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
1609 return (struct bfd_hash_entry
*) ret
;
1613 elfNN_ia64_hash_copy_indirect (bed
, xdir
, xind
)
1614 struct elf_backend_data
*bed ATTRIBUTE_UNUSED
;
1615 struct elf_link_hash_entry
*xdir
, *xind
;
1617 struct elfNN_ia64_link_hash_entry
*dir
, *ind
;
1619 dir
= (struct elfNN_ia64_link_hash_entry
*) xdir
;
1620 ind
= (struct elfNN_ia64_link_hash_entry
*) xind
;
1622 /* Copy down any references that we may have already seen to the
1623 symbol which just became indirect. */
1625 dir
->root
.elf_link_hash_flags
|=
1626 (ind
->root
.elf_link_hash_flags
1627 & (ELF_LINK_HASH_REF_DYNAMIC
1628 | ELF_LINK_HASH_REF_REGULAR
1629 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
));
1631 if (ind
->root
.root
.type
!= bfd_link_hash_indirect
)
1634 /* Copy over the got and plt data. This would have been done
1637 if (dir
->info
== NULL
)
1639 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1641 dir
->info
= dyn_i
= ind
->info
;
1644 /* Fix up the dyn_sym_info pointers to the global symbol. */
1645 for (; dyn_i
; dyn_i
= dyn_i
->next
)
1646 dyn_i
->h
= &dir
->root
;
1648 BFD_ASSERT (ind
->info
== NULL
);
1650 /* Copy over the dynindx. */
1652 if (dir
->root
.dynindx
== -1)
1654 dir
->root
.dynindx
= ind
->root
.dynindx
;
1655 dir
->root
.dynstr_index
= ind
->root
.dynstr_index
;
1656 ind
->root
.dynindx
= -1;
1657 ind
->root
.dynstr_index
= 0;
1659 BFD_ASSERT (ind
->root
.dynindx
== -1);
1663 elfNN_ia64_hash_hide_symbol (info
, xh
, force_local
)
1664 struct bfd_link_info
*info
;
1665 struct elf_link_hash_entry
*xh
;
1666 bfd_boolean force_local
;
1668 struct elfNN_ia64_link_hash_entry
*h
;
1669 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1671 h
= (struct elfNN_ia64_link_hash_entry
*)xh
;
1673 _bfd_elf_link_hash_hide_symbol (info
, &h
->root
, force_local
);
1675 for (dyn_i
= h
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1677 dyn_i
->want_plt2
= 0;
1678 dyn_i
->want_plt
= 0;
1682 /* Create the derived linker hash table. The IA-64 ELF port uses this
1683 derived hash table to keep information specific to the IA-64 ElF
1684 linker (without using static variables). */
1686 static struct bfd_link_hash_table
*
1687 elfNN_ia64_hash_table_create (abfd
)
1690 struct elfNN_ia64_link_hash_table
*ret
;
1692 ret
= bfd_zmalloc ((bfd_size_type
) sizeof (*ret
));
1696 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
1697 elfNN_ia64_new_elf_hash_entry
))
1703 if (!elfNN_ia64_local_hash_table_init (&ret
->loc_hash_table
, abfd
,
1704 elfNN_ia64_new_loc_hash_entry
))
1710 return &ret
->root
.root
;
1713 /* Look up an entry in a Alpha ELF linker hash table. */
1715 static INLINE
struct elfNN_ia64_local_hash_entry
*
1716 elfNN_ia64_local_hash_lookup(table
, string
, create
, copy
)
1717 struct elfNN_ia64_local_hash_table
*table
;
1719 bfd_boolean create
, copy
;
1721 return ((struct elfNN_ia64_local_hash_entry
*)
1722 bfd_hash_lookup (&table
->root
, string
, create
, copy
));
1725 /* Traverse both local and global hash tables. */
1727 struct elfNN_ia64_dyn_sym_traverse_data
1729 bfd_boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1734 elfNN_ia64_global_dyn_sym_thunk (xentry
, xdata
)
1735 struct bfd_hash_entry
*xentry
;
1738 struct elfNN_ia64_link_hash_entry
*entry
1739 = (struct elfNN_ia64_link_hash_entry
*) xentry
;
1740 struct elfNN_ia64_dyn_sym_traverse_data
*data
1741 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1742 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1744 if (entry
->root
.root
.type
== bfd_link_hash_warning
)
1745 entry
= (struct elfNN_ia64_link_hash_entry
*) entry
->root
.root
.u
.i
.link
;
1747 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1748 if (! (*data
->func
) (dyn_i
, data
->data
))
1754 elfNN_ia64_local_dyn_sym_thunk (xentry
, xdata
)
1755 struct bfd_hash_entry
*xentry
;
1758 struct elfNN_ia64_local_hash_entry
*entry
1759 = (struct elfNN_ia64_local_hash_entry
*) xentry
;
1760 struct elfNN_ia64_dyn_sym_traverse_data
*data
1761 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1762 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1764 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1765 if (! (*data
->func
) (dyn_i
, data
->data
))
1771 elfNN_ia64_dyn_sym_traverse (ia64_info
, func
, data
)
1772 struct elfNN_ia64_link_hash_table
*ia64_info
;
1773 bfd_boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1776 struct elfNN_ia64_dyn_sym_traverse_data xdata
;
1781 elf_link_hash_traverse (&ia64_info
->root
,
1782 elfNN_ia64_global_dyn_sym_thunk
, &xdata
);
1783 bfd_hash_traverse (&ia64_info
->loc_hash_table
.root
,
1784 elfNN_ia64_local_dyn_sym_thunk
, &xdata
);
1788 elfNN_ia64_create_dynamic_sections (abfd
, info
)
1790 struct bfd_link_info
*info
;
1792 struct elfNN_ia64_link_hash_table
*ia64_info
;
1795 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
1798 ia64_info
= elfNN_ia64_hash_table (info
);
1800 ia64_info
->plt_sec
= bfd_get_section_by_name (abfd
, ".plt");
1801 ia64_info
->got_sec
= bfd_get_section_by_name (abfd
, ".got");
1804 flagword flags
= bfd_get_section_flags (abfd
, ia64_info
->got_sec
);
1805 bfd_set_section_flags (abfd
, ia64_info
->got_sec
, SEC_SMALL_DATA
| flags
);
1808 if (!get_pltoff (abfd
, info
, ia64_info
))
1811 s
= bfd_make_section(abfd
, ".rela.IA_64.pltoff");
1813 || !bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1816 | SEC_LINKER_CREATED
1818 || !bfd_set_section_alignment (abfd
, s
, 3))
1820 ia64_info
->rel_pltoff_sec
= s
;
1822 s
= bfd_make_section(abfd
, ".rela.got");
1824 || !bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1827 | SEC_LINKER_CREATED
1829 || !bfd_set_section_alignment (abfd
, s
, 3))
1831 ia64_info
->rel_got_sec
= s
;
1836 /* Find and/or create a hash entry for local symbol. */
1837 static struct elfNN_ia64_local_hash_entry
*
1838 get_local_sym_hash (ia64_info
, abfd
, rel
, create
)
1839 struct elfNN_ia64_link_hash_table
*ia64_info
;
1841 const Elf_Internal_Rela
*rel
;
1844 struct elfNN_ia64_local_hash_entry
*ret
;
1845 asection
*sec
= abfd
->sections
;
1846 char addr_name
[34];
1848 BFD_ASSERT ((sizeof (sec
->id
)*2 + 1 + sizeof (unsigned long)*2 + 1) <= 34);
1851 /* Construct a string for use in the elfNN_ia64_local_hash_table.
1852 name describes what was once anonymous memory. */
1854 sprintf (addr_name
, "%x:%lx",
1855 sec
->id
, (unsigned long) ELFNN_R_SYM (rel
->r_info
));
1857 /* Collect the canonical entry data for this address. */
1858 ret
= elfNN_ia64_local_hash_lookup (&ia64_info
->loc_hash_table
,
1859 addr_name
, create
, create
);
1863 /* Find and/or create a descriptor for dynamic symbol info. This will
1864 vary based on global or local symbol, and the addend to the reloc. */
1866 static struct elfNN_ia64_dyn_sym_info
*
1867 get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, create
)
1868 struct elfNN_ia64_link_hash_table
*ia64_info
;
1869 struct elf_link_hash_entry
*h
;
1871 const Elf_Internal_Rela
*rel
;
1874 struct elfNN_ia64_dyn_sym_info
**pp
;
1875 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1876 bfd_vma addend
= rel
? rel
->r_addend
: 0;
1879 pp
= &((struct elfNN_ia64_link_hash_entry
*)h
)->info
;
1882 struct elfNN_ia64_local_hash_entry
*loc_h
;
1884 loc_h
= get_local_sym_hash (ia64_info
, abfd
, rel
, create
);
1887 BFD_ASSERT (!create
);
1894 for (dyn_i
= *pp
; dyn_i
&& dyn_i
->addend
!= addend
; dyn_i
= *pp
)
1897 if (dyn_i
== NULL
&& create
)
1899 dyn_i
= ((struct elfNN_ia64_dyn_sym_info
*)
1900 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *dyn_i
));
1902 dyn_i
->addend
= addend
;
1909 get_got (abfd
, info
, ia64_info
)
1911 struct bfd_link_info
*info
;
1912 struct elfNN_ia64_link_hash_table
*ia64_info
;
1917 got
= ia64_info
->got_sec
;
1922 dynobj
= ia64_info
->root
.dynobj
;
1924 ia64_info
->root
.dynobj
= dynobj
= abfd
;
1925 if (!_bfd_elf_create_got_section (dynobj
, info
))
1928 got
= bfd_get_section_by_name (dynobj
, ".got");
1930 ia64_info
->got_sec
= got
;
1932 flags
= bfd_get_section_flags (abfd
, got
);
1933 bfd_set_section_flags (abfd
, got
, SEC_SMALL_DATA
| flags
);
1939 /* Create function descriptor section (.opd). This section is called .opd
1940 because it contains "official prodecure descriptors". The "official"
1941 refers to the fact that these descriptors are used when taking the address
1942 of a procedure, thus ensuring a unique address for each procedure. */
1945 get_fptr (abfd
, info
, ia64_info
)
1947 struct bfd_link_info
*info
;
1948 struct elfNN_ia64_link_hash_table
*ia64_info
;
1953 fptr
= ia64_info
->fptr_sec
;
1956 dynobj
= ia64_info
->root
.dynobj
;
1958 ia64_info
->root
.dynobj
= dynobj
= abfd
;
1960 fptr
= bfd_make_section (dynobj
, ".opd");
1962 || !bfd_set_section_flags (dynobj
, fptr
,
1967 | (info
->pie
? 0 : SEC_READONLY
)
1968 | SEC_LINKER_CREATED
))
1969 || !bfd_set_section_alignment (abfd
, fptr
, 4))
1975 ia64_info
->fptr_sec
= fptr
;
1980 fptr_rel
= bfd_make_section(abfd
, ".rela.opd");
1981 if (fptr_rel
== NULL
1982 || !bfd_set_section_flags (abfd
, fptr_rel
,
1983 (SEC_ALLOC
| SEC_LOAD
1986 | SEC_LINKER_CREATED
1988 || !bfd_set_section_alignment (abfd
, fptr_rel
, 3))
1994 ia64_info
->rel_fptr_sec
= fptr_rel
;
2002 get_pltoff (abfd
, info
, ia64_info
)
2004 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
2005 struct elfNN_ia64_link_hash_table
*ia64_info
;
2010 pltoff
= ia64_info
->pltoff_sec
;
2013 dynobj
= ia64_info
->root
.dynobj
;
2015 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2017 pltoff
= bfd_make_section (dynobj
, ELF_STRING_ia64_pltoff
);
2019 || !bfd_set_section_flags (dynobj
, pltoff
,
2025 | SEC_LINKER_CREATED
))
2026 || !bfd_set_section_alignment (abfd
, pltoff
, 4))
2032 ia64_info
->pltoff_sec
= pltoff
;
2039 get_reloc_section (abfd
, ia64_info
, sec
, create
)
2041 struct elfNN_ia64_link_hash_table
*ia64_info
;
2045 const char *srel_name
;
2049 srel_name
= (bfd_elf_string_from_elf_section
2050 (abfd
, elf_elfheader(abfd
)->e_shstrndx
,
2051 elf_section_data(sec
)->rel_hdr
.sh_name
));
2052 if (srel_name
== NULL
)
2055 BFD_ASSERT ((strncmp (srel_name
, ".rela", 5) == 0
2056 && strcmp (bfd_get_section_name (abfd
, sec
),
2058 || (strncmp (srel_name
, ".rel", 4) == 0
2059 && strcmp (bfd_get_section_name (abfd
, sec
),
2060 srel_name
+4) == 0));
2062 dynobj
= ia64_info
->root
.dynobj
;
2064 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2066 srel
= bfd_get_section_by_name (dynobj
, srel_name
);
2067 if (srel
== NULL
&& create
)
2069 srel
= bfd_make_section (dynobj
, srel_name
);
2071 || !bfd_set_section_flags (dynobj
, srel
,
2076 | SEC_LINKER_CREATED
2078 || !bfd_set_section_alignment (dynobj
, srel
, 3))
2082 if (sec
->flags
& SEC_READONLY
)
2083 ia64_info
->reltext
= 1;
2089 count_dyn_reloc (abfd
, dyn_i
, srel
, type
)
2091 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2095 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2097 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2098 if (rent
->srel
== srel
&& rent
->type
== type
)
2103 rent
= ((struct elfNN_ia64_dyn_reloc_entry
*)
2104 bfd_alloc (abfd
, (bfd_size_type
) sizeof (*rent
)));
2108 rent
->next
= dyn_i
->reloc_entries
;
2112 dyn_i
->reloc_entries
= rent
;
2120 elfNN_ia64_check_relocs (abfd
, info
, sec
, relocs
)
2122 struct bfd_link_info
*info
;
2124 const Elf_Internal_Rela
*relocs
;
2126 struct elfNN_ia64_link_hash_table
*ia64_info
;
2127 const Elf_Internal_Rela
*relend
;
2128 Elf_Internal_Shdr
*symtab_hdr
;
2129 const Elf_Internal_Rela
*rel
;
2130 asection
*got
, *fptr
, *srel
;
2132 if (info
->relocatable
)
2135 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
2136 ia64_info
= elfNN_ia64_hash_table (info
);
2138 got
= fptr
= srel
= NULL
;
2140 relend
= relocs
+ sec
->reloc_count
;
2141 for (rel
= relocs
; rel
< relend
; ++rel
)
2151 NEED_LTOFF_FPTR
= 128,
2157 struct elf_link_hash_entry
*h
= NULL
;
2158 unsigned long r_symndx
= ELFNN_R_SYM (rel
->r_info
);
2159 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2161 bfd_boolean maybe_dynamic
;
2162 int dynrel_type
= R_IA64_NONE
;
2164 if (r_symndx
>= symtab_hdr
->sh_info
)
2166 /* We're dealing with a global symbol -- find its hash entry
2167 and mark it as being referenced. */
2168 long indx
= r_symndx
- symtab_hdr
->sh_info
;
2169 h
= elf_sym_hashes (abfd
)[indx
];
2170 while (h
->root
.type
== bfd_link_hash_indirect
2171 || h
->root
.type
== bfd_link_hash_warning
)
2172 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2174 h
->elf_link_hash_flags
|= ELF_LINK_HASH_REF_REGULAR
;
2177 /* We can only get preliminary data on whether a symbol is
2178 locally or externally defined, as not all of the input files
2179 have yet been processed. Do something with what we know, as
2180 this may help reduce memory usage and processing time later. */
2181 maybe_dynamic
= FALSE
;
2182 if (h
&& ((!info
->executable
2183 && (!info
->symbolic
|| info
->allow_shlib_undefined
))
2184 || ! (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
)
2185 || h
->root
.type
== bfd_link_hash_defweak
))
2186 maybe_dynamic
= TRUE
;
2189 switch (ELFNN_R_TYPE (rel
->r_info
))
2191 case R_IA64_TPREL64MSB
:
2192 case R_IA64_TPREL64LSB
:
2193 if (info
->shared
|| maybe_dynamic
)
2194 need_entry
= NEED_DYNREL
;
2195 dynrel_type
= R_IA64_TPREL64LSB
;
2197 info
->flags
|= DF_STATIC_TLS
;
2200 case R_IA64_LTOFF_TPREL22
:
2201 need_entry
= NEED_TPREL
;
2203 info
->flags
|= DF_STATIC_TLS
;
2206 case R_IA64_DTPREL64MSB
:
2207 case R_IA64_DTPREL64LSB
:
2208 if (info
->shared
|| maybe_dynamic
)
2209 need_entry
= NEED_DYNREL
;
2210 dynrel_type
= R_IA64_DTPREL64LSB
;
2213 case R_IA64_LTOFF_DTPREL22
:
2214 need_entry
= NEED_DTPREL
;
2217 case R_IA64_DTPMOD64MSB
:
2218 case R_IA64_DTPMOD64LSB
:
2219 if (info
->shared
|| maybe_dynamic
)
2220 need_entry
= NEED_DYNREL
;
2221 dynrel_type
= R_IA64_DTPMOD64LSB
;
2224 case R_IA64_LTOFF_DTPMOD22
:
2225 need_entry
= NEED_DTPMOD
;
2228 case R_IA64_LTOFF_FPTR22
:
2229 case R_IA64_LTOFF_FPTR64I
:
2230 case R_IA64_LTOFF_FPTR32MSB
:
2231 case R_IA64_LTOFF_FPTR32LSB
:
2232 case R_IA64_LTOFF_FPTR64MSB
:
2233 case R_IA64_LTOFF_FPTR64LSB
:
2234 need_entry
= NEED_FPTR
| NEED_GOT
| NEED_LTOFF_FPTR
;
2237 case R_IA64_FPTR64I
:
2238 case R_IA64_FPTR32MSB
:
2239 case R_IA64_FPTR32LSB
:
2240 case R_IA64_FPTR64MSB
:
2241 case R_IA64_FPTR64LSB
:
2242 if (info
->shared
|| h
)
2243 need_entry
= NEED_FPTR
| NEED_DYNREL
;
2245 need_entry
= NEED_FPTR
;
2246 dynrel_type
= R_IA64_FPTR64LSB
;
2249 case R_IA64_LTOFF22
:
2250 case R_IA64_LTOFF64I
:
2251 need_entry
= NEED_GOT
;
2254 case R_IA64_LTOFF22X
:
2255 need_entry
= NEED_GOTX
;
2258 case R_IA64_PLTOFF22
:
2259 case R_IA64_PLTOFF64I
:
2260 case R_IA64_PLTOFF64MSB
:
2261 case R_IA64_PLTOFF64LSB
:
2262 need_entry
= NEED_PLTOFF
;
2266 need_entry
|= NEED_MIN_PLT
;
2270 (*info
->callbacks
->warning
)
2271 (info
, _("@pltoff reloc against local symbol"), 0,
2272 abfd
, 0, (bfd_vma
) 0);
2276 case R_IA64_PCREL21B
:
2277 case R_IA64_PCREL60B
:
2278 /* Depending on where this symbol is defined, we may or may not
2279 need a full plt entry. Only skip if we know we'll not need
2280 the entry -- static or symbolic, and the symbol definition
2281 has already been seen. */
2282 if (maybe_dynamic
&& rel
->r_addend
== 0)
2283 need_entry
= NEED_FULL_PLT
;
2289 case R_IA64_DIR32MSB
:
2290 case R_IA64_DIR32LSB
:
2291 case R_IA64_DIR64MSB
:
2292 case R_IA64_DIR64LSB
:
2293 /* Shared objects will always need at least a REL relocation. */
2294 if (info
->shared
|| maybe_dynamic
)
2295 need_entry
= NEED_DYNREL
;
2296 dynrel_type
= R_IA64_DIR64LSB
;
2299 case R_IA64_IPLTMSB
:
2300 case R_IA64_IPLTLSB
:
2301 /* Shared objects will always need at least a REL relocation. */
2302 if (info
->shared
|| maybe_dynamic
)
2303 need_entry
= NEED_DYNREL
;
2304 dynrel_type
= R_IA64_IPLTLSB
;
2307 case R_IA64_PCREL22
:
2308 case R_IA64_PCREL64I
:
2309 case R_IA64_PCREL32MSB
:
2310 case R_IA64_PCREL32LSB
:
2311 case R_IA64_PCREL64MSB
:
2312 case R_IA64_PCREL64LSB
:
2314 need_entry
= NEED_DYNREL
;
2315 dynrel_type
= R_IA64_PCREL64LSB
;
2322 if ((need_entry
& NEED_FPTR
) != 0
2325 (*info
->callbacks
->warning
)
2326 (info
, _("non-zero addend in @fptr reloc"), 0,
2327 abfd
, 0, (bfd_vma
) 0);
2330 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, TRUE
);
2332 /* Record whether or not this is a local symbol. */
2335 /* Create what's needed. */
2336 if (need_entry
& (NEED_GOT
| NEED_GOTX
| NEED_TPREL
2337 | NEED_DTPMOD
| NEED_DTPREL
))
2341 got
= get_got (abfd
, info
, ia64_info
);
2345 if (need_entry
& NEED_GOT
)
2346 dyn_i
->want_got
= 1;
2347 if (need_entry
& NEED_GOTX
)
2348 dyn_i
->want_gotx
= 1;
2349 if (need_entry
& NEED_TPREL
)
2350 dyn_i
->want_tprel
= 1;
2351 if (need_entry
& NEED_DTPMOD
)
2352 dyn_i
->want_dtpmod
= 1;
2353 if (need_entry
& NEED_DTPREL
)
2354 dyn_i
->want_dtprel
= 1;
2356 if (need_entry
& NEED_FPTR
)
2360 fptr
= get_fptr (abfd
, info
, ia64_info
);
2365 /* FPTRs for shared libraries are allocated by the dynamic
2366 linker. Make sure this local symbol will appear in the
2367 dynamic symbol table. */
2368 if (!h
&& info
->shared
)
2370 if (! (_bfd_elfNN_link_record_local_dynamic_symbol
2371 (info
, abfd
, (long) r_symndx
)))
2375 dyn_i
->want_fptr
= 1;
2377 if (need_entry
& NEED_LTOFF_FPTR
)
2378 dyn_i
->want_ltoff_fptr
= 1;
2379 if (need_entry
& (NEED_MIN_PLT
| NEED_FULL_PLT
))
2381 if (!ia64_info
->root
.dynobj
)
2382 ia64_info
->root
.dynobj
= abfd
;
2383 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
2384 dyn_i
->want_plt
= 1;
2386 if (need_entry
& NEED_FULL_PLT
)
2387 dyn_i
->want_plt2
= 1;
2388 if (need_entry
& NEED_PLTOFF
)
2389 dyn_i
->want_pltoff
= 1;
2390 if ((need_entry
& NEED_DYNREL
) && (sec
->flags
& SEC_ALLOC
))
2394 srel
= get_reloc_section (abfd
, ia64_info
, sec
, TRUE
);
2398 if (!count_dyn_reloc (abfd
, dyn_i
, srel
, dynrel_type
))
2406 /* For cleanliness, and potentially faster dynamic loading, allocate
2407 external GOT entries first. */
2410 allocate_global_data_got (dyn_i
, data
)
2411 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2414 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2416 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2417 && ! dyn_i
->want_fptr
2418 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
))
2420 dyn_i
->got_offset
= x
->ofs
;
2423 if (dyn_i
->want_tprel
)
2425 dyn_i
->tprel_offset
= x
->ofs
;
2428 if (dyn_i
->want_dtpmod
)
2430 if (elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
))
2432 dyn_i
->dtpmod_offset
= x
->ofs
;
2437 struct elfNN_ia64_link_hash_table
*ia64_info
;
2439 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2440 if (ia64_info
->self_dtpmod_offset
== (bfd_vma
) -1)
2442 ia64_info
->self_dtpmod_offset
= x
->ofs
;
2445 dyn_i
->dtpmod_offset
= ia64_info
->self_dtpmod_offset
;
2448 if (dyn_i
->want_dtprel
)
2450 dyn_i
->dtprel_offset
= x
->ofs
;
2456 /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2459 allocate_global_fptr_got (dyn_i
, data
)
2460 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2463 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2467 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
))
2469 dyn_i
->got_offset
= x
->ofs
;
2475 /* Lastly, allocate all the GOT entries for local data. */
2478 allocate_local_got (dyn_i
, data
)
2479 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2482 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2484 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2485 && !elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
))
2487 dyn_i
->got_offset
= x
->ofs
;
2493 /* Search for the index of a global symbol in it's defining object file. */
2496 global_sym_index (h
)
2497 struct elf_link_hash_entry
*h
;
2499 struct elf_link_hash_entry
**p
;
2502 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
2503 || h
->root
.type
== bfd_link_hash_defweak
);
2505 obj
= h
->root
.u
.def
.section
->owner
;
2506 for (p
= elf_sym_hashes (obj
); *p
!= h
; ++p
)
2509 return p
- elf_sym_hashes (obj
) + elf_tdata (obj
)->symtab_hdr
.sh_info
;
2512 /* Allocate function descriptors. We can do these for every function
2513 in a main executable that is not exported. */
2516 allocate_fptr (dyn_i
, data
)
2517 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2520 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2522 if (dyn_i
->want_fptr
)
2524 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2527 while (h
->root
.type
== bfd_link_hash_indirect
2528 || h
->root
.type
== bfd_link_hash_warning
)
2529 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2531 if (!x
->info
->executable
2533 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2534 || h
->root
.type
!= bfd_link_hash_undefweak
))
2536 if (h
&& h
->dynindx
== -1)
2538 BFD_ASSERT ((h
->root
.type
== bfd_link_hash_defined
)
2539 || (h
->root
.type
== bfd_link_hash_defweak
));
2541 if (!_bfd_elfNN_link_record_local_dynamic_symbol
2542 (x
->info
, h
->root
.u
.def
.section
->owner
,
2543 global_sym_index (h
)))
2547 dyn_i
->want_fptr
= 0;
2549 else if (h
== NULL
|| h
->dynindx
== -1)
2551 dyn_i
->fptr_offset
= x
->ofs
;
2555 dyn_i
->want_fptr
= 0;
2560 /* Allocate all the minimal PLT entries. */
2563 allocate_plt_entries (dyn_i
, data
)
2564 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2567 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2569 if (dyn_i
->want_plt
)
2571 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2574 while (h
->root
.type
== bfd_link_hash_indirect
2575 || h
->root
.type
== bfd_link_hash_warning
)
2576 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2578 /* ??? Versioned symbols seem to lose ELF_LINK_HASH_NEEDS_PLT. */
2579 if (elfNN_ia64_dynamic_symbol_p (h
, x
->info
))
2581 bfd_size_type offset
= x
->ofs
;
2583 offset
= PLT_HEADER_SIZE
;
2584 dyn_i
->plt_offset
= offset
;
2585 x
->ofs
= offset
+ PLT_MIN_ENTRY_SIZE
;
2587 dyn_i
->want_pltoff
= 1;
2591 dyn_i
->want_plt
= 0;
2592 dyn_i
->want_plt2
= 0;
2598 /* Allocate all the full PLT entries. */
2601 allocate_plt2_entries (dyn_i
, data
)
2602 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2605 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2607 if (dyn_i
->want_plt2
)
2609 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2610 bfd_size_type ofs
= x
->ofs
;
2612 dyn_i
->plt2_offset
= ofs
;
2613 x
->ofs
= ofs
+ PLT_FULL_ENTRY_SIZE
;
2615 while (h
->root
.type
== bfd_link_hash_indirect
2616 || h
->root
.type
== bfd_link_hash_warning
)
2617 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2618 dyn_i
->h
->plt
.offset
= ofs
;
2623 /* Allocate all the PLTOFF entries requested by relocations and
2624 plt entries. We can't share space with allocated FPTR entries,
2625 because the latter are not necessarily addressable by the GP.
2626 ??? Relaxation might be able to determine that they are. */
2629 allocate_pltoff_entries (dyn_i
, data
)
2630 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2633 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2635 if (dyn_i
->want_pltoff
)
2637 dyn_i
->pltoff_offset
= x
->ofs
;
2643 /* Allocate dynamic relocations for those symbols that turned out
2647 allocate_dynrel_entries (dyn_i
, data
)
2648 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2651 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2652 struct elfNN_ia64_link_hash_table
*ia64_info
;
2653 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2654 bfd_boolean dynamic_symbol
, shared
, resolved_zero
;
2656 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2657 dynamic_symbol
= elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
);
2658 shared
= x
->info
->shared
;
2659 resolved_zero
= (dyn_i
->h
2660 && ELF_ST_VISIBILITY (dyn_i
->h
->other
)
2661 && dyn_i
->h
->root
.type
== bfd_link_hash_undefweak
);
2663 /* Take care of the normal data relocations. */
2665 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2667 int count
= rent
->count
;
2671 case R_IA64_FPTR64LSB
:
2672 /* Allocate one iff !want_fptr and not PIE, which by this point
2673 will be true only if we're actually allocating one statically
2674 in the main executable. Position independent executables
2675 need a relative reloc. */
2676 if (dyn_i
->want_fptr
&& !x
->info
->pie
)
2679 case R_IA64_PCREL64LSB
:
2680 if (!dynamic_symbol
)
2683 case R_IA64_DIR64LSB
:
2684 if (!dynamic_symbol
&& !shared
)
2687 case R_IA64_IPLTLSB
:
2688 if (!dynamic_symbol
&& !shared
)
2690 /* Use two REL relocations for IPLT relocations
2691 against local symbols. */
2692 if (!dynamic_symbol
)
2695 case R_IA64_TPREL64LSB
:
2696 case R_IA64_DTPREL64LSB
:
2697 case R_IA64_DTPMOD64LSB
:
2702 rent
->srel
->_raw_size
+= sizeof (ElfNN_External_Rela
) * count
;
2705 /* Take care of the GOT and PLT relocations. */
2708 && (dynamic_symbol
|| shared
)
2709 && (dyn_i
->want_got
|| dyn_i
->want_gotx
))
2710 || (dyn_i
->want_ltoff_fptr
2712 && dyn_i
->h
->dynindx
!= -1))
2714 if (!dyn_i
->want_ltoff_fptr
2717 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2718 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2720 if ((dynamic_symbol
|| shared
) && dyn_i
->want_tprel
)
2721 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2722 if (dynamic_symbol
&& dyn_i
->want_dtpmod
)
2723 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2724 if (dynamic_symbol
&& dyn_i
->want_dtprel
)
2725 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2726 if (ia64_info
->rel_fptr_sec
&& dyn_i
->want_fptr
)
2728 if (dyn_i
->h
== NULL
|| dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2729 ia64_info
->rel_fptr_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2732 if (!resolved_zero
&& dyn_i
->want_pltoff
)
2734 bfd_size_type t
= 0;
2736 /* Dynamic symbols get one IPLT relocation. Local symbols in
2737 shared libraries get two REL relocations. Local symbols in
2738 main applications get nothing. */
2740 t
= sizeof (ElfNN_External_Rela
);
2742 t
= 2 * sizeof (ElfNN_External_Rela
);
2744 ia64_info
->rel_pltoff_sec
->_raw_size
+= t
;
2751 elfNN_ia64_adjust_dynamic_symbol (info
, h
)
2752 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
2753 struct elf_link_hash_entry
*h
;
2755 /* ??? Undefined symbols with PLT entries should be re-defined
2756 to be the PLT entry. */
2758 /* If this is a weak symbol, and there is a real definition, the
2759 processor independent code will have arranged for us to see the
2760 real definition first, and we can just use the same value. */
2761 if (h
->weakdef
!= NULL
)
2763 BFD_ASSERT (h
->weakdef
->root
.type
== bfd_link_hash_defined
2764 || h
->weakdef
->root
.type
== bfd_link_hash_defweak
);
2765 h
->root
.u
.def
.section
= h
->weakdef
->root
.u
.def
.section
;
2766 h
->root
.u
.def
.value
= h
->weakdef
->root
.u
.def
.value
;
2770 /* If this is a reference to a symbol defined by a dynamic object which
2771 is not a function, we might allocate the symbol in our .dynbss section
2772 and allocate a COPY dynamic relocation.
2774 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
2781 elfNN_ia64_size_dynamic_sections (output_bfd
, info
)
2783 struct bfd_link_info
*info
;
2785 struct elfNN_ia64_allocate_data data
;
2786 struct elfNN_ia64_link_hash_table
*ia64_info
;
2789 bfd_boolean relplt
= FALSE
;
2791 dynobj
= elf_hash_table(info
)->dynobj
;
2792 ia64_info
= elfNN_ia64_hash_table (info
);
2793 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
2794 BFD_ASSERT(dynobj
!= NULL
);
2797 /* Set the contents of the .interp section to the interpreter. */
2798 if (ia64_info
->root
.dynamic_sections_created
2799 && info
->executable
)
2801 sec
= bfd_get_section_by_name (dynobj
, ".interp");
2802 BFD_ASSERT (sec
!= NULL
);
2803 sec
->contents
= (bfd_byte
*) ELF_DYNAMIC_INTERPRETER
;
2804 sec
->_raw_size
= strlen (ELF_DYNAMIC_INTERPRETER
) + 1;
2807 /* Allocate the GOT entries. */
2809 if (ia64_info
->got_sec
)
2812 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
2813 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
2814 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
2815 ia64_info
->got_sec
->_raw_size
= data
.ofs
;
2818 /* Allocate the FPTR entries. */
2820 if (ia64_info
->fptr_sec
)
2823 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_fptr
, &data
);
2824 ia64_info
->fptr_sec
->_raw_size
= data
.ofs
;
2827 /* Now that we've seen all of the input files, we can decide which
2828 symbols need plt entries. Allocate the minimal PLT entries first.
2829 We do this even though dynamic_sections_created may be FALSE, because
2830 this has the side-effect of clearing want_plt and want_plt2. */
2833 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt_entries
, &data
);
2835 ia64_info
->minplt_entries
= 0;
2838 ia64_info
->minplt_entries
2839 = (data
.ofs
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
2842 /* Align the pointer for the plt2 entries. */
2843 data
.ofs
= (data
.ofs
+ 31) & (bfd_vma
) -32;
2845 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt2_entries
, &data
);
2848 BFD_ASSERT (ia64_info
->root
.dynamic_sections_created
);
2850 ia64_info
->plt_sec
->_raw_size
= data
.ofs
;
2852 /* If we've got a .plt, we need some extra memory for the dynamic
2853 linker. We stuff these in .got.plt. */
2854 sec
= bfd_get_section_by_name (dynobj
, ".got.plt");
2855 sec
->_raw_size
= 8 * PLT_RESERVED_WORDS
;
2858 /* Allocate the PLTOFF entries. */
2860 if (ia64_info
->pltoff_sec
)
2863 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_pltoff_entries
, &data
);
2864 ia64_info
->pltoff_sec
->_raw_size
= data
.ofs
;
2867 if (ia64_info
->root
.dynamic_sections_created
)
2869 /* Allocate space for the dynamic relocations that turned out to be
2872 if (info
->shared
&& ia64_info
->self_dtpmod_offset
!= (bfd_vma
) -1)
2873 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2874 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_dynrel_entries
, &data
);
2877 /* We have now determined the sizes of the various dynamic sections.
2878 Allocate memory for them. */
2879 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
2883 if (!(sec
->flags
& SEC_LINKER_CREATED
))
2886 /* If we don't need this section, strip it from the output file.
2887 There were several sections primarily related to dynamic
2888 linking that must be create before the linker maps input
2889 sections to output sections. The linker does that before
2890 bfd_elf_size_dynamic_sections is called, and it is that
2891 function which decides whether anything needs to go into
2894 strip
= (sec
->_raw_size
== 0);
2896 if (sec
== ia64_info
->got_sec
)
2898 else if (sec
== ia64_info
->rel_got_sec
)
2901 ia64_info
->rel_got_sec
= NULL
;
2903 /* We use the reloc_count field as a counter if we need to
2904 copy relocs into the output file. */
2905 sec
->reloc_count
= 0;
2907 else if (sec
== ia64_info
->fptr_sec
)
2910 ia64_info
->fptr_sec
= NULL
;
2912 else if (sec
== ia64_info
->plt_sec
)
2915 ia64_info
->plt_sec
= NULL
;
2917 else if (sec
== ia64_info
->pltoff_sec
)
2920 ia64_info
->pltoff_sec
= NULL
;
2922 else if (sec
== ia64_info
->rel_pltoff_sec
)
2925 ia64_info
->rel_pltoff_sec
= NULL
;
2929 /* We use the reloc_count field as a counter if we need to
2930 copy relocs into the output file. */
2931 sec
->reloc_count
= 0;
2938 /* It's OK to base decisions on the section name, because none
2939 of the dynobj section names depend upon the input files. */
2940 name
= bfd_get_section_name (dynobj
, sec
);
2942 if (strcmp (name
, ".got.plt") == 0)
2944 else if (strncmp (name
, ".rel", 4) == 0)
2948 /* We use the reloc_count field as a counter if we need to
2949 copy relocs into the output file. */
2950 sec
->reloc_count
= 0;
2958 _bfd_strip_section_from_output (info
, sec
);
2961 /* Allocate memory for the section contents. */
2962 sec
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, sec
->_raw_size
);
2963 if (sec
->contents
== NULL
&& sec
->_raw_size
!= 0)
2968 if (elf_hash_table (info
)->dynamic_sections_created
)
2970 /* Add some entries to the .dynamic section. We fill in the values
2971 later (in finish_dynamic_sections) but we must add the entries now
2972 so that we get the correct size for the .dynamic section. */
2974 if (info
->executable
)
2976 /* The DT_DEBUG entry is filled in by the dynamic linker and used
2978 #define add_dynamic_entry(TAG, VAL) \
2979 bfd_elfNN_add_dynamic_entry (info, (bfd_vma) (TAG), (bfd_vma) (VAL))
2981 if (!add_dynamic_entry (DT_DEBUG
, 0))
2985 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE
, 0))
2987 if (!add_dynamic_entry (DT_PLTGOT
, 0))
2992 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
2993 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
2994 || !add_dynamic_entry (DT_JMPREL
, 0))
2998 if (!add_dynamic_entry (DT_RELA
, 0)
2999 || !add_dynamic_entry (DT_RELASZ
, 0)
3000 || !add_dynamic_entry (DT_RELAENT
, sizeof (ElfNN_External_Rela
)))
3003 if (ia64_info
->reltext
)
3005 if (!add_dynamic_entry (DT_TEXTREL
, 0))
3007 info
->flags
|= DF_TEXTREL
;
3011 /* ??? Perhaps force __gp local. */
3016 static bfd_reloc_status_type
3017 elfNN_ia64_install_value (abfd
, hit_addr
, v
, r_type
)
3021 unsigned int r_type
;
3023 const struct ia64_operand
*op
;
3024 int bigendian
= 0, shift
= 0;
3025 bfd_vma t0
, t1
, insn
, dword
;
3026 enum ia64_opnd opnd
;
3029 #ifdef BFD_HOST_U_64_BIT
3030 BFD_HOST_U_64_BIT val
= (BFD_HOST_U_64_BIT
) v
;
3035 opnd
= IA64_OPND_NIL
;
3040 return bfd_reloc_ok
;
3042 /* Instruction relocations. */
3045 case R_IA64_TPREL14
:
3046 case R_IA64_DTPREL14
:
3047 opnd
= IA64_OPND_IMM14
;
3050 case R_IA64_PCREL21F
: opnd
= IA64_OPND_TGT25
; break;
3051 case R_IA64_PCREL21M
: opnd
= IA64_OPND_TGT25b
; break;
3052 case R_IA64_PCREL60B
: opnd
= IA64_OPND_TGT64
; break;
3053 case R_IA64_PCREL21B
:
3054 case R_IA64_PCREL21BI
:
3055 opnd
= IA64_OPND_TGT25c
;
3059 case R_IA64_GPREL22
:
3060 case R_IA64_LTOFF22
:
3061 case R_IA64_LTOFF22X
:
3062 case R_IA64_PLTOFF22
:
3063 case R_IA64_PCREL22
:
3064 case R_IA64_LTOFF_FPTR22
:
3065 case R_IA64_TPREL22
:
3066 case R_IA64_DTPREL22
:
3067 case R_IA64_LTOFF_TPREL22
:
3068 case R_IA64_LTOFF_DTPMOD22
:
3069 case R_IA64_LTOFF_DTPREL22
:
3070 opnd
= IA64_OPND_IMM22
;
3074 case R_IA64_GPREL64I
:
3075 case R_IA64_LTOFF64I
:
3076 case R_IA64_PLTOFF64I
:
3077 case R_IA64_PCREL64I
:
3078 case R_IA64_FPTR64I
:
3079 case R_IA64_LTOFF_FPTR64I
:
3080 case R_IA64_TPREL64I
:
3081 case R_IA64_DTPREL64I
:
3082 opnd
= IA64_OPND_IMMU64
;
3085 /* Data relocations. */
3087 case R_IA64_DIR32MSB
:
3088 case R_IA64_GPREL32MSB
:
3089 case R_IA64_FPTR32MSB
:
3090 case R_IA64_PCREL32MSB
:
3091 case R_IA64_LTOFF_FPTR32MSB
:
3092 case R_IA64_SEGREL32MSB
:
3093 case R_IA64_SECREL32MSB
:
3094 case R_IA64_LTV32MSB
:
3095 case R_IA64_DTPREL32MSB
:
3096 size
= 4; bigendian
= 1;
3099 case R_IA64_DIR32LSB
:
3100 case R_IA64_GPREL32LSB
:
3101 case R_IA64_FPTR32LSB
:
3102 case R_IA64_PCREL32LSB
:
3103 case R_IA64_LTOFF_FPTR32LSB
:
3104 case R_IA64_SEGREL32LSB
:
3105 case R_IA64_SECREL32LSB
:
3106 case R_IA64_LTV32LSB
:
3107 case R_IA64_DTPREL32LSB
:
3108 size
= 4; bigendian
= 0;
3111 case R_IA64_DIR64MSB
:
3112 case R_IA64_GPREL64MSB
:
3113 case R_IA64_PLTOFF64MSB
:
3114 case R_IA64_FPTR64MSB
:
3115 case R_IA64_PCREL64MSB
:
3116 case R_IA64_LTOFF_FPTR64MSB
:
3117 case R_IA64_SEGREL64MSB
:
3118 case R_IA64_SECREL64MSB
:
3119 case R_IA64_LTV64MSB
:
3120 case R_IA64_TPREL64MSB
:
3121 case R_IA64_DTPMOD64MSB
:
3122 case R_IA64_DTPREL64MSB
:
3123 size
= 8; bigendian
= 1;
3126 case R_IA64_DIR64LSB
:
3127 case R_IA64_GPREL64LSB
:
3128 case R_IA64_PLTOFF64LSB
:
3129 case R_IA64_FPTR64LSB
:
3130 case R_IA64_PCREL64LSB
:
3131 case R_IA64_LTOFF_FPTR64LSB
:
3132 case R_IA64_SEGREL64LSB
:
3133 case R_IA64_SECREL64LSB
:
3134 case R_IA64_LTV64LSB
:
3135 case R_IA64_TPREL64LSB
:
3136 case R_IA64_DTPMOD64LSB
:
3137 case R_IA64_DTPREL64LSB
:
3138 size
= 8; bigendian
= 0;
3141 /* Unsupported / Dynamic relocations. */
3143 return bfd_reloc_notsupported
;
3148 case IA64_OPND_IMMU64
:
3149 hit_addr
-= (long) hit_addr
& 0x3;
3150 t0
= bfd_get_64 (abfd
, hit_addr
);
3151 t1
= bfd_get_64 (abfd
, hit_addr
+ 8);
3153 /* tmpl/s: bits 0.. 5 in t0
3154 slot 0: bits 5..45 in t0
3155 slot 1: bits 46..63 in t0, bits 0..22 in t1
3156 slot 2: bits 23..63 in t1 */
3158 /* First, clear the bits that form the 64 bit constant. */
3159 t0
&= ~(0x3ffffLL
<< 46);
3161 | (( (0x07fLL
<< 13) | (0x1ffLL
<< 27)
3162 | (0x01fLL
<< 22) | (0x001LL
<< 21)
3163 | (0x001LL
<< 36)) << 23));
3165 t0
|= ((val
>> 22) & 0x03ffffLL
) << 46; /* 18 lsbs of imm41 */
3166 t1
|= ((val
>> 40) & 0x7fffffLL
) << 0; /* 23 msbs of imm41 */
3167 t1
|= ( (((val
>> 0) & 0x07f) << 13) /* imm7b */
3168 | (((val
>> 7) & 0x1ff) << 27) /* imm9d */
3169 | (((val
>> 16) & 0x01f) << 22) /* imm5c */
3170 | (((val
>> 21) & 0x001) << 21) /* ic */
3171 | (((val
>> 63) & 0x001) << 36)) << 23; /* i */
3173 bfd_put_64 (abfd
, t0
, hit_addr
);
3174 bfd_put_64 (abfd
, t1
, hit_addr
+ 8);
3177 case IA64_OPND_TGT64
:
3178 hit_addr
-= (long) hit_addr
& 0x3;
3179 t0
= bfd_get_64 (abfd
, hit_addr
);
3180 t1
= bfd_get_64 (abfd
, hit_addr
+ 8);
3182 /* tmpl/s: bits 0.. 5 in t0
3183 slot 0: bits 5..45 in t0
3184 slot 1: bits 46..63 in t0, bits 0..22 in t1
3185 slot 2: bits 23..63 in t1 */
3187 /* First, clear the bits that form the 64 bit constant. */
3188 t0
&= ~(0x3ffffLL
<< 46);
3190 | ((1LL << 36 | 0xfffffLL
<< 13) << 23));
3193 t0
|= ((val
>> 20) & 0xffffLL
) << 2 << 46; /* 16 lsbs of imm39 */
3194 t1
|= ((val
>> 36) & 0x7fffffLL
) << 0; /* 23 msbs of imm39 */
3195 t1
|= ((((val
>> 0) & 0xfffffLL
) << 13) /* imm20b */
3196 | (((val
>> 59) & 0x1LL
) << 36)) << 23; /* i */
3198 bfd_put_64 (abfd
, t0
, hit_addr
);
3199 bfd_put_64 (abfd
, t1
, hit_addr
+ 8);
3203 switch ((long) hit_addr
& 0x3)
3205 case 0: shift
= 5; break;
3206 case 1: shift
= 14; hit_addr
+= 3; break;
3207 case 2: shift
= 23; hit_addr
+= 6; break;
3208 case 3: return bfd_reloc_notsupported
; /* shouldn't happen... */
3210 dword
= bfd_get_64 (abfd
, hit_addr
);
3211 insn
= (dword
>> shift
) & 0x1ffffffffffLL
;
3213 op
= elf64_ia64_operands
+ opnd
;
3214 err
= (*op
->insert
) (op
, val
, (ia64_insn
*)& insn
);
3216 return bfd_reloc_overflow
;
3218 dword
&= ~(0x1ffffffffffLL
<< shift
);
3219 dword
|= (insn
<< shift
);
3220 bfd_put_64 (abfd
, dword
, hit_addr
);
3224 /* A data relocation. */
3227 bfd_putb32 (val
, hit_addr
);
3229 bfd_putb64 (val
, hit_addr
);
3232 bfd_putl32 (val
, hit_addr
);
3234 bfd_putl64 (val
, hit_addr
);
3238 return bfd_reloc_ok
;
3242 elfNN_ia64_install_dyn_reloc (abfd
, info
, sec
, srel
, offset
, type
,
3245 struct bfd_link_info
*info
;
3253 Elf_Internal_Rela outrel
;
3256 BFD_ASSERT (dynindx
!= -1);
3257 outrel
.r_info
= ELFNN_R_INFO (dynindx
, type
);
3258 outrel
.r_addend
= addend
;
3259 outrel
.r_offset
= _bfd_elf_section_offset (abfd
, info
, sec
, offset
);
3260 if (outrel
.r_offset
>= (bfd_vma
) -2)
3262 /* Run for the hills. We shouldn't be outputting a relocation
3263 for this. So do what everyone else does and output a no-op. */
3264 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
3265 outrel
.r_addend
= 0;
3266 outrel
.r_offset
= 0;
3269 outrel
.r_offset
+= sec
->output_section
->vma
+ sec
->output_offset
;
3271 loc
= srel
->contents
;
3272 loc
+= srel
->reloc_count
++ * sizeof (ElfNN_External_Rela
);
3273 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3274 BFD_ASSERT (sizeof (ElfNN_External_Rela
) * srel
->reloc_count
3275 <= srel
->_cooked_size
);
3278 /* Store an entry for target address TARGET_ADDR in the linkage table
3279 and return the gp-relative address of the linkage table entry. */
3282 set_got_entry (abfd
, info
, dyn_i
, dynindx
, addend
, value
, dyn_r_type
)
3284 struct bfd_link_info
*info
;
3285 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3289 unsigned int dyn_r_type
;
3291 struct elfNN_ia64_link_hash_table
*ia64_info
;
3296 ia64_info
= elfNN_ia64_hash_table (info
);
3297 got_sec
= ia64_info
->got_sec
;
3301 case R_IA64_TPREL64LSB
:
3302 done
= dyn_i
->tprel_done
;
3303 dyn_i
->tprel_done
= TRUE
;
3304 got_offset
= dyn_i
->tprel_offset
;
3306 case R_IA64_DTPMOD64LSB
:
3307 if (dyn_i
->dtpmod_offset
!= ia64_info
->self_dtpmod_offset
)
3309 done
= dyn_i
->dtpmod_done
;
3310 dyn_i
->dtpmod_done
= TRUE
;
3314 done
= ia64_info
->self_dtpmod_done
;
3315 ia64_info
->self_dtpmod_done
= TRUE
;
3318 got_offset
= dyn_i
->dtpmod_offset
;
3320 case R_IA64_DTPREL64LSB
:
3321 done
= dyn_i
->dtprel_done
;
3322 dyn_i
->dtprel_done
= TRUE
;
3323 got_offset
= dyn_i
->dtprel_offset
;
3326 done
= dyn_i
->got_done
;
3327 dyn_i
->got_done
= TRUE
;
3328 got_offset
= dyn_i
->got_offset
;
3332 BFD_ASSERT ((got_offset
& 7) == 0);
3336 /* Store the target address in the linkage table entry. */
3337 bfd_put_64 (abfd
, value
, got_sec
->contents
+ got_offset
);
3339 /* Install a dynamic relocation if needed. */
3342 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3343 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
3344 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3345 || elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, info
)
3346 || (dynindx
!= -1 && dyn_r_type
== R_IA64_FPTR64LSB
))
3347 && (!dyn_i
->want_ltoff_fptr
3350 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3353 && dyn_r_type
!= R_IA64_TPREL64LSB
3354 && dyn_r_type
!= R_IA64_DTPMOD64LSB
3355 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3357 dyn_r_type
= R_IA64_REL64LSB
;
3362 if (bfd_big_endian (abfd
))
3366 case R_IA64_REL64LSB
:
3367 dyn_r_type
= R_IA64_REL64MSB
;
3369 case R_IA64_DIR64LSB
:
3370 dyn_r_type
= R_IA64_DIR64MSB
;
3372 case R_IA64_FPTR64LSB
:
3373 dyn_r_type
= R_IA64_FPTR64MSB
;
3375 case R_IA64_TPREL64LSB
:
3376 dyn_r_type
= R_IA64_TPREL64MSB
;
3378 case R_IA64_DTPMOD64LSB
:
3379 dyn_r_type
= R_IA64_DTPMOD64MSB
;
3381 case R_IA64_DTPREL64LSB
:
3382 dyn_r_type
= R_IA64_DTPREL64MSB
;
3390 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, got_sec
,
3391 ia64_info
->rel_got_sec
,
3392 got_offset
, dyn_r_type
,
3397 /* Return the address of the linkage table entry. */
3398 value
= (got_sec
->output_section
->vma
3399 + got_sec
->output_offset
3405 /* Fill in a function descriptor consisting of the function's code
3406 address and its global pointer. Return the descriptor's address. */
3409 set_fptr_entry (abfd
, info
, dyn_i
, value
)
3411 struct bfd_link_info
*info
;
3412 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3415 struct elfNN_ia64_link_hash_table
*ia64_info
;
3418 ia64_info
= elfNN_ia64_hash_table (info
);
3419 fptr_sec
= ia64_info
->fptr_sec
;
3421 if (!dyn_i
->fptr_done
)
3423 dyn_i
->fptr_done
= 1;
3425 /* Fill in the function descriptor. */
3426 bfd_put_64 (abfd
, value
, fptr_sec
->contents
+ dyn_i
->fptr_offset
);
3427 bfd_put_64 (abfd
, _bfd_get_gp_value (abfd
),
3428 fptr_sec
->contents
+ dyn_i
->fptr_offset
+ 8);
3429 if (ia64_info
->rel_fptr_sec
)
3431 Elf_Internal_Rela outrel
;
3434 if (bfd_little_endian (abfd
))
3435 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTLSB
);
3437 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTMSB
);
3438 outrel
.r_addend
= value
;
3439 outrel
.r_offset
= (fptr_sec
->output_section
->vma
3440 + fptr_sec
->output_offset
3441 + dyn_i
->fptr_offset
);
3442 loc
= ia64_info
->rel_fptr_sec
->contents
;
3443 loc
+= ia64_info
->rel_fptr_sec
->reloc_count
++
3444 * sizeof (ElfNN_External_Rela
);
3445 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3449 /* Return the descriptor's address. */
3450 value
= (fptr_sec
->output_section
->vma
3451 + fptr_sec
->output_offset
3452 + dyn_i
->fptr_offset
);
3457 /* Fill in a PLTOFF entry consisting of the function's code address
3458 and its global pointer. Return the descriptor's address. */
3461 set_pltoff_entry (abfd
, info
, dyn_i
, value
, is_plt
)
3463 struct bfd_link_info
*info
;
3464 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3468 struct elfNN_ia64_link_hash_table
*ia64_info
;
3469 asection
*pltoff_sec
;
3471 ia64_info
= elfNN_ia64_hash_table (info
);
3472 pltoff_sec
= ia64_info
->pltoff_sec
;
3474 /* Don't do anything if this symbol uses a real PLT entry. In
3475 that case, we'll fill this in during finish_dynamic_symbol. */
3476 if ((! dyn_i
->want_plt
|| is_plt
)
3477 && !dyn_i
->pltoff_done
)
3479 bfd_vma gp
= _bfd_get_gp_value (abfd
);
3481 /* Fill in the function descriptor. */
3482 bfd_put_64 (abfd
, value
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
);
3483 bfd_put_64 (abfd
, gp
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
+ 8);
3485 /* Install dynamic relocations if needed. */
3489 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3490 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3492 unsigned int dyn_r_type
;
3494 if (bfd_big_endian (abfd
))
3495 dyn_r_type
= R_IA64_REL64MSB
;
3497 dyn_r_type
= R_IA64_REL64LSB
;
3499 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3500 ia64_info
->rel_pltoff_sec
,
3501 dyn_i
->pltoff_offset
,
3502 dyn_r_type
, 0, value
);
3503 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3504 ia64_info
->rel_pltoff_sec
,
3505 dyn_i
->pltoff_offset
+ 8,
3509 dyn_i
->pltoff_done
= 1;
3512 /* Return the descriptor's address. */
3513 value
= (pltoff_sec
->output_section
->vma
3514 + pltoff_sec
->output_offset
3515 + dyn_i
->pltoff_offset
);
3520 /* Return the base VMA address which should be subtracted from real addresses
3521 when resolving @tprel() relocation.
3522 Main program TLS (whose template starts at PT_TLS p_vaddr)
3523 is assigned offset round(16, PT_TLS p_align). */
3526 elfNN_ia64_tprel_base (info
)
3527 struct bfd_link_info
*info
;
3529 struct elf_link_tls_segment
*tls_segment
3530 = elf_hash_table (info
)->tls_segment
;
3532 BFD_ASSERT (tls_segment
!= NULL
);
3533 return (tls_segment
->start
3534 - align_power ((bfd_vma
) 16, tls_segment
->align
));
3537 /* Return the base VMA address which should be subtracted from real addresses
3538 when resolving @dtprel() relocation.
3539 This is PT_TLS segment p_vaddr. */
3542 elfNN_ia64_dtprel_base (info
)
3543 struct bfd_link_info
*info
;
3545 BFD_ASSERT (elf_hash_table (info
)->tls_segment
!= NULL
);
3546 return elf_hash_table (info
)->tls_segment
->start
;
3549 /* Called through qsort to sort the .IA_64.unwind section during a
3550 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3551 to the output bfd so we can do proper endianness frobbing. */
3553 static bfd
*elfNN_ia64_unwind_entry_compare_bfd
;
3556 elfNN_ia64_unwind_entry_compare (a
, b
)
3562 av
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, a
);
3563 bv
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, b
);
3565 return (av
< bv
? -1 : av
> bv
? 1 : 0);
3568 /* Make sure we've got ourselves a nice fat __gp value. */
3570 elfNN_ia64_choose_gp (abfd
, info
)
3572 struct bfd_link_info
*info
;
3574 bfd_vma min_vma
= (bfd_vma
) -1, max_vma
= 0;
3575 bfd_vma min_short_vma
= min_vma
, max_short_vma
= 0;
3576 struct elf_link_hash_entry
*gp
;
3579 struct elfNN_ia64_link_hash_table
*ia64_info
;
3581 ia64_info
= elfNN_ia64_hash_table (info
);
3583 /* Find the min and max vma of all sections marked short. Also collect
3584 min and max vma of any type, for use in selecting a nice gp. */
3585 for (os
= abfd
->sections
; os
; os
= os
->next
)
3589 if ((os
->flags
& SEC_ALLOC
) == 0)
3593 hi
= os
->vma
+ os
->_raw_size
;
3601 if (os
->flags
& SEC_SMALL_DATA
)
3603 if (min_short_vma
> lo
)
3605 if (max_short_vma
< hi
)
3610 /* See if the user wants to force a value. */
3611 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3615 && (gp
->root
.type
== bfd_link_hash_defined
3616 || gp
->root
.type
== bfd_link_hash_defweak
))
3618 asection
*gp_sec
= gp
->root
.u
.def
.section
;
3619 gp_val
= (gp
->root
.u
.def
.value
3620 + gp_sec
->output_section
->vma
3621 + gp_sec
->output_offset
);
3625 /* Pick a sensible value. */
3627 asection
*got_sec
= ia64_info
->got_sec
;
3629 /* Start with just the address of the .got. */
3631 gp_val
= got_sec
->output_section
->vma
;
3632 else if (max_short_vma
!= 0)
3633 gp_val
= min_short_vma
;
3637 /* If it is possible to address the entire image, but we
3638 don't with the choice above, adjust. */
3639 if (max_vma
- min_vma
< 0x400000
3640 && max_vma
- gp_val
<= 0x200000
3641 && gp_val
- min_vma
> 0x200000)
3642 gp_val
= min_vma
+ 0x200000;
3643 else if (max_short_vma
!= 0)
3645 /* If we don't cover all the short data, adjust. */
3646 if (max_short_vma
- gp_val
>= 0x200000)
3647 gp_val
= min_short_vma
+ 0x200000;
3649 /* If we're addressing stuff past the end, adjust back. */
3650 if (gp_val
> max_vma
)
3651 gp_val
= max_vma
- 0x200000 + 8;
3655 /* Validate whether all SHF_IA_64_SHORT sections are within
3656 range of the chosen GP. */
3658 if (max_short_vma
!= 0)
3660 if (max_short_vma
- min_short_vma
>= 0x400000)
3662 (*_bfd_error_handler
)
3663 (_("%s: short data segment overflowed (0x%lx >= 0x400000)"),
3664 bfd_get_filename (abfd
),
3665 (unsigned long) (max_short_vma
- min_short_vma
));
3668 else if ((gp_val
> min_short_vma
3669 && gp_val
- min_short_vma
> 0x200000)
3670 || (gp_val
< max_short_vma
3671 && max_short_vma
- gp_val
>= 0x200000))
3673 (*_bfd_error_handler
)
3674 (_("%s: __gp does not cover short data segment"),
3675 bfd_get_filename (abfd
));
3680 _bfd_set_gp_value (abfd
, gp_val
);
3686 elfNN_ia64_final_link (abfd
, info
)
3688 struct bfd_link_info
*info
;
3690 struct elfNN_ia64_link_hash_table
*ia64_info
;
3691 asection
*unwind_output_sec
;
3693 ia64_info
= elfNN_ia64_hash_table (info
);
3695 /* Make sure we've got ourselves a nice fat __gp value. */
3696 if (!info
->relocatable
)
3698 bfd_vma gp_val
= _bfd_get_gp_value (abfd
);
3699 struct elf_link_hash_entry
*gp
;
3703 if (! elfNN_ia64_choose_gp (abfd
, info
))
3705 gp_val
= _bfd_get_gp_value (abfd
);
3708 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3712 gp
->root
.type
= bfd_link_hash_defined
;
3713 gp
->root
.u
.def
.value
= gp_val
;
3714 gp
->root
.u
.def
.section
= bfd_abs_section_ptr
;
3718 /* If we're producing a final executable, we need to sort the contents
3719 of the .IA_64.unwind section. Force this section to be relocated
3720 into memory rather than written immediately to the output file. */
3721 unwind_output_sec
= NULL
;
3722 if (!info
->relocatable
)
3724 asection
*s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_unwind
);
3727 unwind_output_sec
= s
->output_section
;
3728 unwind_output_sec
->contents
3729 = bfd_malloc (unwind_output_sec
->_raw_size
);
3730 if (unwind_output_sec
->contents
== NULL
)
3735 /* Invoke the regular ELF backend linker to do all the work. */
3736 if (!bfd_elfNN_bfd_final_link (abfd
, info
))
3739 if (unwind_output_sec
)
3741 elfNN_ia64_unwind_entry_compare_bfd
= abfd
;
3742 qsort (unwind_output_sec
->contents
,
3743 (size_t) (unwind_output_sec
->_raw_size
/ 24),
3745 elfNN_ia64_unwind_entry_compare
);
3747 if (! bfd_set_section_contents (abfd
, unwind_output_sec
,
3748 unwind_output_sec
->contents
, (bfd_vma
) 0,
3749 unwind_output_sec
->_raw_size
))
3757 elfNN_ia64_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
3758 contents
, relocs
, local_syms
, local_sections
)
3760 struct bfd_link_info
*info
;
3762 asection
*input_section
;
3764 Elf_Internal_Rela
*relocs
;
3765 Elf_Internal_Sym
*local_syms
;
3766 asection
**local_sections
;
3768 struct elfNN_ia64_link_hash_table
*ia64_info
;
3769 Elf_Internal_Shdr
*symtab_hdr
;
3770 Elf_Internal_Rela
*rel
;
3771 Elf_Internal_Rela
*relend
;
3773 bfd_boolean ret_val
= TRUE
; /* for non-fatal errors */
3776 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3777 ia64_info
= elfNN_ia64_hash_table (info
);
3779 /* Infect various flags from the input section to the output section. */
3780 if (info
->relocatable
)
3784 flags
= elf_section_data(input_section
)->this_hdr
.sh_flags
;
3785 flags
&= SHF_IA_64_NORECOV
;
3787 elf_section_data(input_section
->output_section
)
3788 ->this_hdr
.sh_flags
|= flags
;
3792 gp_val
= _bfd_get_gp_value (output_bfd
);
3793 srel
= get_reloc_section (input_bfd
, ia64_info
, input_section
, FALSE
);
3796 relend
= relocs
+ input_section
->reloc_count
;
3797 for (; rel
< relend
; ++rel
)
3799 struct elf_link_hash_entry
*h
;
3800 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3801 bfd_reloc_status_type r
;
3802 reloc_howto_type
*howto
;
3803 unsigned long r_symndx
;
3804 Elf_Internal_Sym
*sym
;
3805 unsigned int r_type
;
3809 bfd_boolean dynamic_symbol_p
;
3810 bfd_boolean local_symbol_p
;
3811 bfd_boolean undef_weak_ref
;
3813 r_type
= ELFNN_R_TYPE (rel
->r_info
);
3814 if (r_type
> R_IA64_MAX_RELOC_CODE
)
3816 (*_bfd_error_handler
)
3817 (_("%s: unknown relocation type %d"),
3818 bfd_archive_filename (input_bfd
), (int)r_type
);
3819 bfd_set_error (bfd_error_bad_value
);
3824 howto
= lookup_howto (r_type
);
3825 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
3829 undef_weak_ref
= FALSE
;
3831 if (r_symndx
< symtab_hdr
->sh_info
)
3833 /* Reloc against local symbol. */
3834 sym
= local_syms
+ r_symndx
;
3835 sym_sec
= local_sections
[r_symndx
];
3836 value
= _bfd_elf_rela_local_sym (output_bfd
, sym
, sym_sec
, rel
);
3837 if ((sym_sec
->flags
& SEC_MERGE
)
3838 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
3839 && sym_sec
->sec_info_type
== ELF_INFO_TYPE_MERGE
)
3841 struct elfNN_ia64_local_hash_entry
*loc_h
;
3843 loc_h
= get_local_sym_hash (ia64_info
, input_bfd
, rel
, FALSE
);
3844 if (loc_h
&& ! loc_h
->sec_merge_done
)
3846 struct elfNN_ia64_dyn_sym_info
*dynent
;
3849 for (dynent
= loc_h
->info
; dynent
; dynent
= dynent
->next
)
3853 _bfd_merged_section_offset (output_bfd
, &msec
,
3854 elf_section_data (msec
)->
3859 dynent
->addend
-= sym
->st_value
;
3860 dynent
->addend
+= msec
->output_section
->vma
3861 + msec
->output_offset
3862 - sym_sec
->output_section
->vma
3863 - sym_sec
->output_offset
;
3865 loc_h
->sec_merge_done
= 1;
3873 /* Reloc against global symbol. */
3874 indx
= r_symndx
- symtab_hdr
->sh_info
;
3875 h
= elf_sym_hashes (input_bfd
)[indx
];
3876 while (h
->root
.type
== bfd_link_hash_indirect
3877 || h
->root
.type
== bfd_link_hash_warning
)
3878 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3881 if (h
->root
.type
== bfd_link_hash_defined
3882 || h
->root
.type
== bfd_link_hash_defweak
)
3884 sym_sec
= h
->root
.u
.def
.section
;
3886 /* Detect the cases that sym_sec->output_section is
3887 expected to be NULL -- all cases in which the symbol
3888 is defined in another shared module. This includes
3889 PLT relocs for which we've created a PLT entry and
3890 other relocs for which we're prepared to create
3891 dynamic relocations. */
3892 /* ??? Just accept it NULL and continue. */
3894 if (sym_sec
->output_section
!= NULL
)
3896 value
= (h
->root
.u
.def
.value
3897 + sym_sec
->output_section
->vma
3898 + sym_sec
->output_offset
);
3901 else if (h
->root
.type
== bfd_link_hash_undefweak
)
3902 undef_weak_ref
= TRUE
;
3903 else if (! info
->executable
3904 && !info
->no_undefined
3905 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
3909 if (! ((*info
->callbacks
->undefined_symbol
)
3910 (info
, h
->root
.root
.string
, input_bfd
,
3911 input_section
, rel
->r_offset
,
3912 (!info
->shared
|| info
->no_undefined
3913 || ELF_ST_VISIBILITY (h
->other
)))))
3919 hit_addr
= contents
+ rel
->r_offset
;
3920 value
+= rel
->r_addend
;
3921 dynamic_symbol_p
= elfNN_ia64_dynamic_symbol_p (h
, info
);
3922 /* Is this symbol locally defined? A protected symbol is locallly
3923 defined. But its function descriptor may not. Use it with
3925 local_symbol_p
= (! dynamic_symbol_p
3926 || ELF_ST_VISIBILITY (h
->other
) != STV_DEFAULT
);
3937 case R_IA64_DIR32MSB
:
3938 case R_IA64_DIR32LSB
:
3939 case R_IA64_DIR64MSB
:
3940 case R_IA64_DIR64LSB
:
3941 /* Install a dynamic relocation for this reloc. */
3942 if ((dynamic_symbol_p
|| info
->shared
)
3944 && (input_section
->flags
& SEC_ALLOC
) != 0)
3946 unsigned int dyn_r_type
;
3950 BFD_ASSERT (srel
!= NULL
);
3952 /* If we don't need dynamic symbol lookup, find a
3953 matching RELATIVE relocation. */
3954 dyn_r_type
= r_type
;
3955 if (! local_symbol_p
)
3957 dynindx
= h
->dynindx
;
3958 addend
= rel
->r_addend
;
3965 case R_IA64_DIR32MSB
:
3966 dyn_r_type
= R_IA64_REL32MSB
;
3968 case R_IA64_DIR32LSB
:
3969 dyn_r_type
= R_IA64_REL32LSB
;
3971 case R_IA64_DIR64MSB
:
3972 dyn_r_type
= R_IA64_REL64MSB
;
3974 case R_IA64_DIR64LSB
:
3975 dyn_r_type
= R_IA64_REL64LSB
;
3979 /* We can't represent this without a dynamic symbol.
3980 Adjust the relocation to be against an output
3981 section symbol, which are always present in the
3982 dynamic symbol table. */
3983 /* ??? People shouldn't be doing non-pic code in
3984 shared libraries. Hork. */
3985 (*_bfd_error_handler
)
3986 (_("%s: linking non-pic code in a shared library"),
3987 bfd_archive_filename (input_bfd
));
3995 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
3996 srel
, rel
->r_offset
, dyn_r_type
,
4001 case R_IA64_LTV32MSB
:
4002 case R_IA64_LTV32LSB
:
4003 case R_IA64_LTV64MSB
:
4004 case R_IA64_LTV64LSB
:
4005 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4008 case R_IA64_GPREL22
:
4009 case R_IA64_GPREL64I
:
4010 case R_IA64_GPREL32MSB
:
4011 case R_IA64_GPREL32LSB
:
4012 case R_IA64_GPREL64MSB
:
4013 case R_IA64_GPREL64LSB
:
4014 if (dynamic_symbol_p
)
4016 (*_bfd_error_handler
)
4017 (_("%s: @gprel relocation against dynamic symbol %s"),
4018 bfd_archive_filename (input_bfd
), h
->root
.root
.string
);
4023 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4026 case R_IA64_LTOFF22
:
4027 case R_IA64_LTOFF22X
:
4028 case R_IA64_LTOFF64I
:
4029 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4030 value
= set_got_entry (input_bfd
, info
, dyn_i
, (h
? h
->dynindx
: -1),
4031 rel
->r_addend
, value
, R_IA64_DIR64LSB
);
4033 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4036 case R_IA64_PLTOFF22
:
4037 case R_IA64_PLTOFF64I
:
4038 case R_IA64_PLTOFF64MSB
:
4039 case R_IA64_PLTOFF64LSB
:
4040 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4041 value
= set_pltoff_entry (output_bfd
, info
, dyn_i
, value
, FALSE
);
4043 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4046 case R_IA64_FPTR64I
:
4047 case R_IA64_FPTR32MSB
:
4048 case R_IA64_FPTR32LSB
:
4049 case R_IA64_FPTR64MSB
:
4050 case R_IA64_FPTR64LSB
:
4051 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4052 if (dyn_i
->want_fptr
)
4054 if (!undef_weak_ref
)
4055 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4057 if (!dyn_i
->want_fptr
|| info
->pie
)
4060 unsigned int dyn_r_type
= r_type
;
4061 bfd_vma addend
= rel
->r_addend
;
4063 /* Otherwise, we expect the dynamic linker to create
4066 if (dyn_i
->want_fptr
)
4068 if (r_type
== R_IA64_FPTR64I
)
4070 /* We can't represent this without a dynamic symbol.
4071 Adjust the relocation to be against an output
4072 section symbol, which are always present in the
4073 dynamic symbol table. */
4074 /* ??? People shouldn't be doing non-pic code in
4075 shared libraries. Hork. */
4076 (*_bfd_error_handler
)
4077 (_("%s: linking non-pic code in a position independent executable"),
4078 bfd_archive_filename (input_bfd
));
4084 dyn_r_type
= r_type
+ R_IA64_REL64LSB
- R_IA64_FPTR64LSB
;
4088 if (h
->dynindx
!= -1)
4089 dynindx
= h
->dynindx
;
4091 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4092 (info
, h
->root
.u
.def
.section
->owner
,
4093 global_sym_index (h
)));
4098 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4099 (info
, input_bfd
, (long) r_symndx
));
4103 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4104 srel
, rel
->r_offset
, dyn_r_type
,
4108 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4111 case R_IA64_LTOFF_FPTR22
:
4112 case R_IA64_LTOFF_FPTR64I
:
4113 case R_IA64_LTOFF_FPTR32MSB
:
4114 case R_IA64_LTOFF_FPTR32LSB
:
4115 case R_IA64_LTOFF_FPTR64MSB
:
4116 case R_IA64_LTOFF_FPTR64LSB
:
4120 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4121 if (dyn_i
->want_fptr
)
4123 BFD_ASSERT (h
== NULL
|| h
->dynindx
== -1)
4124 if (!undef_weak_ref
)
4125 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4130 /* Otherwise, we expect the dynamic linker to create
4134 if (h
->dynindx
!= -1)
4135 dynindx
= h
->dynindx
;
4137 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4138 (info
, h
->root
.u
.def
.section
->owner
,
4139 global_sym_index (h
)));
4142 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4143 (info
, input_bfd
, (long) r_symndx
));
4147 value
= set_got_entry (output_bfd
, info
, dyn_i
, dynindx
,
4148 rel
->r_addend
, value
, R_IA64_FPTR64LSB
);
4150 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4154 case R_IA64_PCREL32MSB
:
4155 case R_IA64_PCREL32LSB
:
4156 case R_IA64_PCREL64MSB
:
4157 case R_IA64_PCREL64LSB
:
4158 /* Install a dynamic relocation for this reloc. */
4159 if (dynamic_symbol_p
&& r_symndx
!= 0)
4161 BFD_ASSERT (srel
!= NULL
);
4163 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4164 srel
, rel
->r_offset
, r_type
,
4165 h
->dynindx
, rel
->r_addend
);
4169 case R_IA64_PCREL21B
:
4170 case R_IA64_PCREL60B
:
4171 /* We should have created a PLT entry for any dynamic symbol. */
4174 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4176 if (dyn_i
&& dyn_i
->want_plt2
)
4178 /* Should have caught this earlier. */
4179 BFD_ASSERT (rel
->r_addend
== 0);
4181 value
= (ia64_info
->plt_sec
->output_section
->vma
4182 + ia64_info
->plt_sec
->output_offset
4183 + dyn_i
->plt2_offset
);
4187 /* Since there's no PLT entry, Validate that this is
4189 BFD_ASSERT (undef_weak_ref
|| sym_sec
->output_section
!= NULL
);
4191 /* If the symbol is undef_weak, we shouldn't be trying
4192 to call it. There's every chance that we'd wind up
4193 with an out-of-range fixup here. Don't bother setting
4194 any value at all. */
4200 case R_IA64_PCREL21BI
:
4201 case R_IA64_PCREL21F
:
4202 case R_IA64_PCREL21M
:
4203 case R_IA64_PCREL22
:
4204 case R_IA64_PCREL64I
:
4205 /* The PCREL21BI reloc is specifically not intended for use with
4206 dynamic relocs. PCREL21F and PCREL21M are used for speculation
4207 fixup code, and thus probably ought not be dynamic. The
4208 PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4209 if (dynamic_symbol_p
)
4213 if (r_type
== R_IA64_PCREL21BI
)
4214 msg
= _("%s: @internal branch to dynamic symbol %s");
4215 else if (r_type
== R_IA64_PCREL21F
|| r_type
== R_IA64_PCREL21M
)
4216 msg
= _("%s: speculation fixup to dynamic symbol %s");
4218 msg
= _("%s: @pcrel relocation against dynamic symbol %s");
4219 (*_bfd_error_handler
) (msg
, bfd_archive_filename (input_bfd
),
4220 h
->root
.root
.string
);
4227 /* Make pc-relative. */
4228 value
-= (input_section
->output_section
->vma
4229 + input_section
->output_offset
4230 + rel
->r_offset
) & ~ (bfd_vma
) 0x3;
4231 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4234 case R_IA64_SEGREL32MSB
:
4235 case R_IA64_SEGREL32LSB
:
4236 case R_IA64_SEGREL64MSB
:
4237 case R_IA64_SEGREL64LSB
:
4240 /* If the input section was discarded from the output, then
4246 struct elf_segment_map
*m
;
4247 Elf_Internal_Phdr
*p
;
4249 /* Find the segment that contains the output_section. */
4250 for (m
= elf_tdata (output_bfd
)->segment_map
,
4251 p
= elf_tdata (output_bfd
)->phdr
;
4256 for (i
= m
->count
- 1; i
>= 0; i
--)
4257 if (m
->sections
[i
] == input_section
->output_section
)
4265 r
= bfd_reloc_notsupported
;
4269 /* The VMA of the segment is the vaddr of the associated
4271 if (value
> p
->p_vaddr
)
4272 value
-= p
->p_vaddr
;
4275 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
,
4281 case R_IA64_SECREL32MSB
:
4282 case R_IA64_SECREL32LSB
:
4283 case R_IA64_SECREL64MSB
:
4284 case R_IA64_SECREL64LSB
:
4285 /* Make output-section relative. */
4286 if (value
> input_section
->output_section
->vma
)
4287 value
-= input_section
->output_section
->vma
;
4290 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4293 case R_IA64_IPLTMSB
:
4294 case R_IA64_IPLTLSB
:
4295 /* Install a dynamic relocation for this reloc. */
4296 if ((dynamic_symbol_p
|| info
->shared
)
4297 && (input_section
->flags
& SEC_ALLOC
) != 0)
4299 BFD_ASSERT (srel
!= NULL
);
4301 /* If we don't need dynamic symbol lookup, install two
4302 RELATIVE relocations. */
4305 unsigned int dyn_r_type
;
4307 if (r_type
== R_IA64_IPLTMSB
)
4308 dyn_r_type
= R_IA64_REL64MSB
;
4310 dyn_r_type
= R_IA64_REL64LSB
;
4312 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4314 srel
, rel
->r_offset
,
4315 dyn_r_type
, 0, value
);
4316 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4318 srel
, rel
->r_offset
+ 8,
4319 dyn_r_type
, 0, gp_val
);
4322 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4323 srel
, rel
->r_offset
, r_type
,
4324 h
->dynindx
, rel
->r_addend
);
4327 if (r_type
== R_IA64_IPLTMSB
)
4328 r_type
= R_IA64_DIR64MSB
;
4330 r_type
= R_IA64_DIR64LSB
;
4331 elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4332 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
+ 8, gp_val
,
4336 case R_IA64_TPREL14
:
4337 case R_IA64_TPREL22
:
4338 case R_IA64_TPREL64I
:
4339 value
-= elfNN_ia64_tprel_base (info
);
4340 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4343 case R_IA64_DTPREL14
:
4344 case R_IA64_DTPREL22
:
4345 case R_IA64_DTPREL64I
:
4346 case R_IA64_DTPREL64LSB
:
4347 case R_IA64_DTPREL64MSB
:
4348 value
-= elfNN_ia64_dtprel_base (info
);
4349 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
4352 case R_IA64_LTOFF_TPREL22
:
4353 case R_IA64_LTOFF_DTPMOD22
:
4354 case R_IA64_LTOFF_DTPREL22
:
4357 long dynindx
= h
? h
->dynindx
: -1;
4358 bfd_vma r_addend
= rel
->r_addend
;
4363 case R_IA64_LTOFF_TPREL22
:
4364 if (!dynamic_symbol_p
)
4367 value
-= elfNN_ia64_tprel_base (info
);
4370 r_addend
+= value
- elfNN_ia64_dtprel_base (info
);
4374 got_r_type
= R_IA64_TPREL64LSB
;
4376 case R_IA64_LTOFF_DTPMOD22
:
4377 if (!dynamic_symbol_p
&& !info
->shared
)
4379 got_r_type
= R_IA64_DTPMOD64LSB
;
4381 case R_IA64_LTOFF_DTPREL22
:
4382 if (!dynamic_symbol_p
)
4383 value
-= elfNN_ia64_dtprel_base (info
);
4384 got_r_type
= R_IA64_DTPREL64LSB
;
4387 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4388 value
= set_got_entry (input_bfd
, info
, dyn_i
, dynindx
, r_addend
,
4391 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
,
4397 r
= bfd_reloc_notsupported
;
4406 case bfd_reloc_undefined
:
4407 /* This can happen for global table relative relocs if
4408 __gp is undefined. This is a panic situation so we
4409 don't try to continue. */
4410 (*info
->callbacks
->undefined_symbol
)
4411 (info
, "__gp", input_bfd
, input_section
, rel
->r_offset
, 1);
4414 case bfd_reloc_notsupported
:
4419 name
= h
->root
.root
.string
;
4422 name
= bfd_elf_string_from_elf_section (input_bfd
,
4423 symtab_hdr
->sh_link
,
4428 name
= bfd_section_name (input_bfd
, input_section
);
4430 if (!(*info
->callbacks
->warning
) (info
, _("unsupported reloc"),
4432 input_section
, rel
->r_offset
))
4438 case bfd_reloc_dangerous
:
4439 case bfd_reloc_outofrange
:
4440 case bfd_reloc_overflow
:
4446 name
= h
->root
.root
.string
;
4449 name
= bfd_elf_string_from_elf_section (input_bfd
,
4450 symtab_hdr
->sh_link
,
4455 name
= bfd_section_name (input_bfd
, input_section
);
4457 if (!(*info
->callbacks
->reloc_overflow
) (info
, name
,
4474 elfNN_ia64_finish_dynamic_symbol (output_bfd
, info
, h
, sym
)
4476 struct bfd_link_info
*info
;
4477 struct elf_link_hash_entry
*h
;
4478 Elf_Internal_Sym
*sym
;
4480 struct elfNN_ia64_link_hash_table
*ia64_info
;
4481 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
4483 ia64_info
= elfNN_ia64_hash_table (info
);
4484 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4486 /* Fill in the PLT data, if required. */
4487 if (dyn_i
&& dyn_i
->want_plt
)
4489 Elf_Internal_Rela outrel
;
4492 bfd_vma plt_addr
, pltoff_addr
, gp_val
, index
;
4494 gp_val
= _bfd_get_gp_value (output_bfd
);
4496 /* Initialize the minimal PLT entry. */
4498 index
= (dyn_i
->plt_offset
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
4499 plt_sec
= ia64_info
->plt_sec
;
4500 loc
= plt_sec
->contents
+ dyn_i
->plt_offset
;
4502 memcpy (loc
, plt_min_entry
, PLT_MIN_ENTRY_SIZE
);
4503 elfNN_ia64_install_value (output_bfd
, loc
, index
, R_IA64_IMM22
);
4504 elfNN_ia64_install_value (output_bfd
, loc
+2, -dyn_i
->plt_offset
,
4507 plt_addr
= (plt_sec
->output_section
->vma
4508 + plt_sec
->output_offset
4509 + dyn_i
->plt_offset
);
4510 pltoff_addr
= set_pltoff_entry (output_bfd
, info
, dyn_i
, plt_addr
, TRUE
);
4512 /* Initialize the FULL PLT entry, if needed. */
4513 if (dyn_i
->want_plt2
)
4515 loc
= plt_sec
->contents
+ dyn_i
->plt2_offset
;
4517 memcpy (loc
, plt_full_entry
, PLT_FULL_ENTRY_SIZE
);
4518 elfNN_ia64_install_value (output_bfd
, loc
, pltoff_addr
- gp_val
,
4521 /* Mark the symbol as undefined, rather than as defined in the
4522 plt section. Leave the value alone. */
4523 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4524 first place. But perhaps elflink.h did some for us. */
4525 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
4526 sym
->st_shndx
= SHN_UNDEF
;
4529 /* Create the dynamic relocation. */
4530 outrel
.r_offset
= pltoff_addr
;
4531 if (bfd_little_endian (output_bfd
))
4532 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTLSB
);
4534 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTMSB
);
4535 outrel
.r_addend
= 0;
4537 /* This is fun. In the .IA_64.pltoff section, we've got entries
4538 that correspond both to real PLT entries, and those that
4539 happened to resolve to local symbols but need to be created
4540 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4541 relocations for the real PLT should come at the end of the
4542 section, so that they can be indexed by plt entry at runtime.
4544 We emitted all of the relocations for the non-PLT @pltoff
4545 entries during relocate_section. So we can consider the
4546 existing sec->reloc_count to be the base of the array of
4549 loc
= ia64_info
->rel_pltoff_sec
->contents
;
4550 loc
+= ((ia64_info
->rel_pltoff_sec
->reloc_count
+ index
)
4551 * sizeof (Elf64_External_Rela
));
4552 bfd_elfNN_swap_reloca_out (output_bfd
, &outrel
, loc
);
4555 /* Mark some specially defined symbols as absolute. */
4556 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
4557 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0
4558 || strcmp (h
->root
.root
.string
, "_PROCEDURE_LINKAGE_TABLE_") == 0)
4559 sym
->st_shndx
= SHN_ABS
;
4565 elfNN_ia64_finish_dynamic_sections (abfd
, info
)
4567 struct bfd_link_info
*info
;
4569 struct elfNN_ia64_link_hash_table
*ia64_info
;
4572 ia64_info
= elfNN_ia64_hash_table (info
);
4573 dynobj
= ia64_info
->root
.dynobj
;
4575 if (elf_hash_table (info
)->dynamic_sections_created
)
4577 ElfNN_External_Dyn
*dyncon
, *dynconend
;
4578 asection
*sdyn
, *sgotplt
;
4581 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
4582 sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
4583 BFD_ASSERT (sdyn
!= NULL
);
4584 dyncon
= (ElfNN_External_Dyn
*) sdyn
->contents
;
4585 dynconend
= (ElfNN_External_Dyn
*) (sdyn
->contents
+ sdyn
->_raw_size
);
4587 gp_val
= _bfd_get_gp_value (abfd
);
4589 for (; dyncon
< dynconend
; dyncon
++)
4591 Elf_Internal_Dyn dyn
;
4593 bfd_elfNN_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4598 dyn
.d_un
.d_ptr
= gp_val
;
4602 dyn
.d_un
.d_val
= (ia64_info
->minplt_entries
4603 * sizeof (ElfNN_External_Rela
));
4607 /* See the comment above in finish_dynamic_symbol. */
4608 dyn
.d_un
.d_ptr
= (ia64_info
->rel_pltoff_sec
->output_section
->vma
4609 + ia64_info
->rel_pltoff_sec
->output_offset
4610 + (ia64_info
->rel_pltoff_sec
->reloc_count
4611 * sizeof (ElfNN_External_Rela
)));
4614 case DT_IA_64_PLT_RESERVE
:
4615 dyn
.d_un
.d_ptr
= (sgotplt
->output_section
->vma
4616 + sgotplt
->output_offset
);
4620 /* Do not have RELASZ include JMPREL. This makes things
4621 easier on ld.so. This is not what the rest of BFD set up. */
4622 dyn
.d_un
.d_val
-= (ia64_info
->minplt_entries
4623 * sizeof (ElfNN_External_Rela
));
4627 bfd_elfNN_swap_dyn_out (abfd
, &dyn
, dyncon
);
4630 /* Initialize the PLT0 entry. */
4631 if (ia64_info
->plt_sec
)
4633 bfd_byte
*loc
= ia64_info
->plt_sec
->contents
;
4636 memcpy (loc
, plt_header
, PLT_HEADER_SIZE
);
4638 pltres
= (sgotplt
->output_section
->vma
4639 + sgotplt
->output_offset
4642 elfNN_ia64_install_value (abfd
, loc
+1, pltres
, R_IA64_GPREL22
);
4649 /* ELF file flag handling: */
4651 /* Function to keep IA-64 specific file flags. */
4653 elfNN_ia64_set_private_flags (abfd
, flags
)
4657 BFD_ASSERT (!elf_flags_init (abfd
)
4658 || elf_elfheader (abfd
)->e_flags
== flags
);
4660 elf_elfheader (abfd
)->e_flags
= flags
;
4661 elf_flags_init (abfd
) = TRUE
;
4665 /* Merge backend specific data from an object file to the output
4666 object file when linking. */
4668 elfNN_ia64_merge_private_bfd_data (ibfd
, obfd
)
4673 bfd_boolean ok
= TRUE
;
4675 /* Don't even pretend to support mixed-format linking. */
4676 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
4677 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
4680 in_flags
= elf_elfheader (ibfd
)->e_flags
;
4681 out_flags
= elf_elfheader (obfd
)->e_flags
;
4683 if (! elf_flags_init (obfd
))
4685 elf_flags_init (obfd
) = TRUE
;
4686 elf_elfheader (obfd
)->e_flags
= in_flags
;
4688 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
4689 && bfd_get_arch_info (obfd
)->the_default
)
4691 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
4692 bfd_get_mach (ibfd
));
4698 /* Check flag compatibility. */
4699 if (in_flags
== out_flags
)
4702 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4703 if (!(in_flags
& EF_IA_64_REDUCEDFP
) && (out_flags
& EF_IA_64_REDUCEDFP
))
4704 elf_elfheader (obfd
)->e_flags
&= ~EF_IA_64_REDUCEDFP
;
4706 if ((in_flags
& EF_IA_64_TRAPNIL
) != (out_flags
& EF_IA_64_TRAPNIL
))
4708 (*_bfd_error_handler
)
4709 (_("%s: linking trap-on-NULL-dereference with non-trapping files"),
4710 bfd_archive_filename (ibfd
));
4712 bfd_set_error (bfd_error_bad_value
);
4715 if ((in_flags
& EF_IA_64_BE
) != (out_flags
& EF_IA_64_BE
))
4717 (*_bfd_error_handler
)
4718 (_("%s: linking big-endian files with little-endian files"),
4719 bfd_archive_filename (ibfd
));
4721 bfd_set_error (bfd_error_bad_value
);
4724 if ((in_flags
& EF_IA_64_ABI64
) != (out_flags
& EF_IA_64_ABI64
))
4726 (*_bfd_error_handler
)
4727 (_("%s: linking 64-bit files with 32-bit files"),
4728 bfd_archive_filename (ibfd
));
4730 bfd_set_error (bfd_error_bad_value
);
4733 if ((in_flags
& EF_IA_64_CONS_GP
) != (out_flags
& EF_IA_64_CONS_GP
))
4735 (*_bfd_error_handler
)
4736 (_("%s: linking constant-gp files with non-constant-gp files"),
4737 bfd_archive_filename (ibfd
));
4739 bfd_set_error (bfd_error_bad_value
);
4742 if ((in_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
)
4743 != (out_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
))
4745 (*_bfd_error_handler
)
4746 (_("%s: linking auto-pic files with non-auto-pic files"),
4747 bfd_archive_filename (ibfd
));
4749 bfd_set_error (bfd_error_bad_value
);
4757 elfNN_ia64_print_private_bfd_data (abfd
, ptr
)
4761 FILE *file
= (FILE *) ptr
;
4762 flagword flags
= elf_elfheader (abfd
)->e_flags
;
4764 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
4766 fprintf (file
, "private flags = %s%s%s%s%s%s%s%s\n",
4767 (flags
& EF_IA_64_TRAPNIL
) ? "TRAPNIL, " : "",
4768 (flags
& EF_IA_64_EXT
) ? "EXT, " : "",
4769 (flags
& EF_IA_64_BE
) ? "BE, " : "LE, ",
4770 (flags
& EF_IA_64_REDUCEDFP
) ? "REDUCEDFP, " : "",
4771 (flags
& EF_IA_64_CONS_GP
) ? "CONS_GP, " : "",
4772 (flags
& EF_IA_64_NOFUNCDESC_CONS_GP
) ? "NOFUNCDESC_CONS_GP, " : "",
4773 (flags
& EF_IA_64_ABSOLUTE
) ? "ABSOLUTE, " : "",
4774 (flags
& EF_IA_64_ABI64
) ? "ABI64" : "ABI32");
4776 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
4780 static enum elf_reloc_type_class
4781 elfNN_ia64_reloc_type_class (rela
)
4782 const Elf_Internal_Rela
*rela
;
4784 switch ((int) ELFNN_R_TYPE (rela
->r_info
))
4786 case R_IA64_REL32MSB
:
4787 case R_IA64_REL32LSB
:
4788 case R_IA64_REL64MSB
:
4789 case R_IA64_REL64LSB
:
4790 return reloc_class_relative
;
4791 case R_IA64_IPLTMSB
:
4792 case R_IA64_IPLTLSB
:
4793 return reloc_class_plt
;
4795 return reloc_class_copy
;
4797 return reloc_class_normal
;
4802 elfNN_ia64_hpux_vec (const bfd_target
*vec
)
4804 extern const bfd_target bfd_elfNN_ia64_hpux_big_vec
;
4805 return (vec
== & bfd_elfNN_ia64_hpux_big_vec
);
4809 elfNN_hpux_post_process_headers (abfd
, info
)
4811 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
4813 Elf_Internal_Ehdr
*i_ehdrp
= elf_elfheader (abfd
);
4815 i_ehdrp
->e_ident
[EI_OSABI
] = ELFOSABI_HPUX
;
4816 i_ehdrp
->e_ident
[EI_ABIVERSION
] = 1;
4820 elfNN_hpux_backend_section_from_bfd_section (abfd
, sec
, retval
)
4821 bfd
*abfd ATTRIBUTE_UNUSED
;
4825 if (bfd_is_com_section (sec
))
4827 *retval
= SHN_IA_64_ANSI_COMMON
;
4833 #define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
4834 #define TARGET_LITTLE_NAME "elfNN-ia64-little"
4835 #define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec
4836 #define TARGET_BIG_NAME "elfNN-ia64-big"
4837 #define ELF_ARCH bfd_arch_ia64
4838 #define ELF_MACHINE_CODE EM_IA_64
4839 #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
4840 #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
4841 #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
4843 #define elf_backend_section_from_shdr \
4844 elfNN_ia64_section_from_shdr
4845 #define elf_backend_section_flags \
4846 elfNN_ia64_section_flags
4847 #define elf_backend_fake_sections \
4848 elfNN_ia64_fake_sections
4849 #define elf_backend_final_write_processing \
4850 elfNN_ia64_final_write_processing
4851 #define elf_backend_add_symbol_hook \
4852 elfNN_ia64_add_symbol_hook
4853 #define elf_backend_additional_program_headers \
4854 elfNN_ia64_additional_program_headers
4855 #define elf_backend_modify_segment_map \
4856 elfNN_ia64_modify_segment_map
4857 #define elf_info_to_howto \
4858 elfNN_ia64_info_to_howto
4860 #define bfd_elfNN_bfd_reloc_type_lookup \
4861 elfNN_ia64_reloc_type_lookup
4862 #define bfd_elfNN_bfd_is_local_label_name \
4863 elfNN_ia64_is_local_label_name
4864 #define bfd_elfNN_bfd_relax_section \
4865 elfNN_ia64_relax_section
4867 /* Stuff for the BFD linker: */
4868 #define bfd_elfNN_bfd_link_hash_table_create \
4869 elfNN_ia64_hash_table_create
4870 #define elf_backend_create_dynamic_sections \
4871 elfNN_ia64_create_dynamic_sections
4872 #define elf_backend_check_relocs \
4873 elfNN_ia64_check_relocs
4874 #define elf_backend_adjust_dynamic_symbol \
4875 elfNN_ia64_adjust_dynamic_symbol
4876 #define elf_backend_size_dynamic_sections \
4877 elfNN_ia64_size_dynamic_sections
4878 #define elf_backend_relocate_section \
4879 elfNN_ia64_relocate_section
4880 #define elf_backend_finish_dynamic_symbol \
4881 elfNN_ia64_finish_dynamic_symbol
4882 #define elf_backend_finish_dynamic_sections \
4883 elfNN_ia64_finish_dynamic_sections
4884 #define bfd_elfNN_bfd_final_link \
4885 elfNN_ia64_final_link
4887 #define bfd_elfNN_bfd_merge_private_bfd_data \
4888 elfNN_ia64_merge_private_bfd_data
4889 #define bfd_elfNN_bfd_set_private_flags \
4890 elfNN_ia64_set_private_flags
4891 #define bfd_elfNN_bfd_print_private_bfd_data \
4892 elfNN_ia64_print_private_bfd_data
4894 #define elf_backend_plt_readonly 1
4895 #define elf_backend_want_plt_sym 0
4896 #define elf_backend_plt_alignment 5
4897 #define elf_backend_got_header_size 0
4898 #define elf_backend_plt_header_size PLT_HEADER_SIZE
4899 #define elf_backend_want_got_plt 1
4900 #define elf_backend_may_use_rel_p 1
4901 #define elf_backend_may_use_rela_p 1
4902 #define elf_backend_default_use_rela_p 1
4903 #define elf_backend_want_dynbss 0
4904 #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
4905 #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
4906 #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
4907 #define elf_backend_rela_normal 1
4909 #include "elfNN-target.h"
4911 /* HPUX-specific vectors. */
4913 #undef TARGET_LITTLE_SYM
4914 #undef TARGET_LITTLE_NAME
4915 #undef TARGET_BIG_SYM
4916 #define TARGET_BIG_SYM bfd_elfNN_ia64_hpux_big_vec
4917 #undef TARGET_BIG_NAME
4918 #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
4920 /* These are HP-UX specific functions. */
4922 #undef elf_backend_post_process_headers
4923 #define elf_backend_post_process_headers elfNN_hpux_post_process_headers
4925 #undef elf_backend_section_from_bfd_section
4926 #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
4928 #undef elf_backend_want_p_paddr_set_to_zero
4929 #define elf_backend_want_p_paddr_set_to_zero 1
4931 #undef ELF_MAXPAGESIZE
4932 #define ELF_MAXPAGESIZE 0x1000 /* 1K */
4935 #define elfNN_bed elfNN_ia64_hpux_bed
4937 #include "elfNN-target.h"
4939 #undef elf_backend_want_p_paddr_set_to_zero