1 /* IA-64 support for 64-bit ELF
2 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
3 Free Software Foundation, Inc.
4 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
26 #include "opcode/ia64.h"
34 #define LOG_SECTION_ALIGN 3
38 #define LOG_SECTION_ALIGN 2
41 /* THE RULES for all the stuff the linker creates --
43 GOT Entries created in response to LTOFF or LTOFF_FPTR
44 relocations. Dynamic relocs created for dynamic
45 symbols in an application; REL relocs for locals
48 FPTR The canonical function descriptor. Created for local
49 symbols in applications. Descriptors for dynamic symbols
50 and local symbols in shared libraries are created by
51 ld.so. Thus there are no dynamic relocs against these
52 objects. The FPTR relocs for such _are_ passed through
53 to the dynamic relocation tables.
55 FULL_PLT Created for a PCREL21B relocation against a dynamic symbol.
56 Requires the creation of a PLTOFF entry. This does not
57 require any dynamic relocations.
59 PLTOFF Created by PLTOFF relocations. For local symbols, this
60 is an alternate function descriptor, and in shared libraries
61 requires two REL relocations. Note that this cannot be
62 transformed into an FPTR relocation, since it must be in
63 range of the GP. For dynamic symbols, this is a function
64 descriptor for a MIN_PLT entry, and requires one IPLT reloc.
66 MIN_PLT Created by PLTOFF entries against dynamic symbols. This
67 does not require dynamic relocations. */
69 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
71 typedef struct bfd_hash_entry
*(*new_hash_entry_func
)
72 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
74 /* In dynamically (linker-) created sections, we generally need to keep track
75 of the place a symbol or expression got allocated to. This is done via hash
76 tables that store entries of the following type. */
78 struct elfNN_ia64_dyn_sym_info
80 /* The addend for which this entry is relevant. */
83 /* Next addend in the list. */
84 struct elfNN_ia64_dyn_sym_info
*next
;
88 bfd_vma pltoff_offset
;
92 bfd_vma dtpmod_offset
;
93 bfd_vma dtprel_offset
;
95 /* The symbol table entry, if any, that this was derived from. */
96 struct elf_link_hash_entry
*h
;
98 /* Used to count non-got, non-plt relocations for delayed sizing
99 of relocation sections. */
100 struct elfNN_ia64_dyn_reloc_entry
102 struct elfNN_ia64_dyn_reloc_entry
*next
;
107 /* Is this reloc against readonly section? */
111 /* TRUE when the section contents have been updated. */
112 unsigned got_done
: 1;
113 unsigned fptr_done
: 1;
114 unsigned pltoff_done
: 1;
115 unsigned tprel_done
: 1;
116 unsigned dtpmod_done
: 1;
117 unsigned dtprel_done
: 1;
119 /* TRUE for the different kinds of linker data we want created. */
120 unsigned want_got
: 1;
121 unsigned want_gotx
: 1;
122 unsigned want_fptr
: 1;
123 unsigned want_ltoff_fptr
: 1;
124 unsigned want_plt
: 1;
125 unsigned want_plt2
: 1;
126 unsigned want_pltoff
: 1;
127 unsigned want_tprel
: 1;
128 unsigned want_dtpmod
: 1;
129 unsigned want_dtprel
: 1;
132 struct elfNN_ia64_local_hash_entry
136 struct elfNN_ia64_dyn_sym_info
*info
;
138 /* TRUE if this hash entry's addends was translated for
139 SHF_MERGE optimization. */
140 unsigned sec_merge_done
: 1;
143 struct elfNN_ia64_link_hash_entry
145 struct elf_link_hash_entry root
;
146 struct elfNN_ia64_dyn_sym_info
*info
;
149 struct elfNN_ia64_link_hash_table
151 /* The main hash table. */
152 struct elf_link_hash_table root
;
154 asection
*got_sec
; /* the linkage table section (or NULL) */
155 asection
*rel_got_sec
; /* dynamic relocation section for same */
156 asection
*fptr_sec
; /* function descriptor table (or NULL) */
157 asection
*rel_fptr_sec
; /* dynamic relocation section for same */
158 asection
*plt_sec
; /* the primary plt section (or NULL) */
159 asection
*pltoff_sec
; /* private descriptors for plt (or NULL) */
160 asection
*rel_pltoff_sec
; /* dynamic relocation section for same */
162 bfd_size_type minplt_entries
; /* number of minplt entries */
163 unsigned reltext
: 1; /* are there relocs against readonly sections? */
164 unsigned self_dtpmod_done
: 1;/* has self DTPMOD entry been finished? */
165 bfd_vma self_dtpmod_offset
; /* .got offset to self DTPMOD entry */
167 htab_t loc_hash_table
;
168 void *loc_hash_memory
;
171 struct elfNN_ia64_allocate_data
173 struct bfd_link_info
*info
;
177 #define elfNN_ia64_hash_table(p) \
178 ((struct elfNN_ia64_link_hash_table *) ((p)->hash))
180 static bfd_reloc_status_type elfNN_ia64_reloc
181 PARAMS ((bfd
*abfd
, arelent
*reloc
, asymbol
*sym
, PTR data
,
182 asection
*input_section
, bfd
*output_bfd
, char **error_message
));
183 static reloc_howto_type
* lookup_howto
184 PARAMS ((unsigned int rtype
));
185 static reloc_howto_type
*elfNN_ia64_reloc_type_lookup
186 PARAMS ((bfd
*abfd
, bfd_reloc_code_real_type bfd_code
));
187 static void elfNN_ia64_info_to_howto
188 PARAMS ((bfd
*abfd
, arelent
*bfd_reloc
, Elf_Internal_Rela
*elf_reloc
));
189 static bfd_boolean elfNN_ia64_relax_section
190 PARAMS((bfd
*abfd
, asection
*sec
, struct bfd_link_info
*link_info
,
191 bfd_boolean
*again
));
192 static void elfNN_ia64_relax_ldxmov
193 PARAMS((bfd_byte
*contents
, bfd_vma off
));
194 static bfd_boolean is_unwind_section_name
195 PARAMS ((bfd
*abfd
, const char *));
196 static bfd_boolean elfNN_ia64_section_flags
197 PARAMS ((flagword
*, const Elf_Internal_Shdr
*));
198 static bfd_boolean elfNN_ia64_fake_sections
199 PARAMS ((bfd
*abfd
, Elf_Internal_Shdr
*hdr
, asection
*sec
));
200 static void elfNN_ia64_final_write_processing
201 PARAMS ((bfd
*abfd
, bfd_boolean linker
));
202 static bfd_boolean elfNN_ia64_add_symbol_hook
203 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, Elf_Internal_Sym
*sym
,
204 const char **namep
, flagword
*flagsp
, asection
**secp
,
206 static int elfNN_ia64_additional_program_headers
207 PARAMS ((bfd
*abfd
));
208 static bfd_boolean elfNN_ia64_modify_segment_map
209 PARAMS ((bfd
*, struct bfd_link_info
*));
210 static bfd_boolean elfNN_ia64_is_local_label_name
211 PARAMS ((bfd
*abfd
, const char *name
));
212 static bfd_boolean elfNN_ia64_dynamic_symbol_p
213 PARAMS ((struct elf_link_hash_entry
*h
, struct bfd_link_info
*info
, int));
214 static struct bfd_hash_entry
*elfNN_ia64_new_elf_hash_entry
215 PARAMS ((struct bfd_hash_entry
*entry
, struct bfd_hash_table
*table
,
216 const char *string
));
217 static void elfNN_ia64_hash_copy_indirect
218 PARAMS ((const struct elf_backend_data
*, struct elf_link_hash_entry
*,
219 struct elf_link_hash_entry
*));
220 static void elfNN_ia64_hash_hide_symbol
221 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*, bfd_boolean
));
222 static hashval_t elfNN_ia64_local_htab_hash
PARAMS ((const void *));
223 static int elfNN_ia64_local_htab_eq
PARAMS ((const void *ptr1
,
225 static struct bfd_link_hash_table
*elfNN_ia64_hash_table_create
226 PARAMS ((bfd
*abfd
));
227 static void elfNN_ia64_hash_table_free
228 PARAMS ((struct bfd_link_hash_table
*hash
));
229 static bfd_boolean elfNN_ia64_global_dyn_sym_thunk
230 PARAMS ((struct bfd_hash_entry
*, PTR
));
231 static int elfNN_ia64_local_dyn_sym_thunk
232 PARAMS ((void **, PTR
));
233 static void elfNN_ia64_dyn_sym_traverse
234 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
235 bfd_boolean (*func
) (struct elfNN_ia64_dyn_sym_info
*, PTR
),
237 static bfd_boolean elfNN_ia64_create_dynamic_sections
238 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
239 static struct elfNN_ia64_local_hash_entry
* get_local_sym_hash
240 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
241 bfd
*abfd
, const Elf_Internal_Rela
*rel
, bfd_boolean create
));
242 static struct elfNN_ia64_dyn_sym_info
* get_dyn_sym_info
243 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
244 struct elf_link_hash_entry
*h
,
245 bfd
*abfd
, const Elf_Internal_Rela
*rel
, bfd_boolean create
));
246 static asection
*get_got
247 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
248 struct elfNN_ia64_link_hash_table
*ia64_info
));
249 static asection
*get_fptr
250 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
251 struct elfNN_ia64_link_hash_table
*ia64_info
));
252 static asection
*get_pltoff
253 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
254 struct elfNN_ia64_link_hash_table
*ia64_info
));
255 static asection
*get_reloc_section
256 PARAMS ((bfd
*abfd
, struct elfNN_ia64_link_hash_table
*ia64_info
,
257 asection
*sec
, bfd_boolean create
));
258 static bfd_boolean elfNN_ia64_check_relocs
259 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
260 const Elf_Internal_Rela
*relocs
));
261 static bfd_boolean elfNN_ia64_adjust_dynamic_symbol
262 PARAMS ((struct bfd_link_info
*info
, struct elf_link_hash_entry
*h
));
263 static long global_sym_index
264 PARAMS ((struct elf_link_hash_entry
*h
));
265 static bfd_boolean allocate_fptr
266 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
267 static bfd_boolean allocate_global_data_got
268 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
269 static bfd_boolean allocate_global_fptr_got
270 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
271 static bfd_boolean allocate_local_got
272 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
273 static bfd_boolean allocate_pltoff_entries
274 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
275 static bfd_boolean allocate_plt_entries
276 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
277 static bfd_boolean allocate_plt2_entries
278 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
279 static bfd_boolean allocate_dynrel_entries
280 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
281 static bfd_boolean elfNN_ia64_size_dynamic_sections
282 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
));
283 static bfd_reloc_status_type elfNN_ia64_install_value
284 PARAMS ((bfd_byte
*hit_addr
, bfd_vma val
, unsigned int r_type
));
285 static void elfNN_ia64_install_dyn_reloc
286 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
287 asection
*srel
, bfd_vma offset
, unsigned int type
,
288 long dynindx
, bfd_vma addend
));
289 static bfd_vma set_got_entry
290 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
291 struct elfNN_ia64_dyn_sym_info
*dyn_i
, long dynindx
,
292 bfd_vma addend
, bfd_vma value
, unsigned int dyn_r_type
));
293 static bfd_vma set_fptr_entry
294 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
295 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
297 static bfd_vma set_pltoff_entry
298 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
299 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
300 bfd_vma value
, bfd_boolean
));
301 static bfd_vma elfNN_ia64_tprel_base
302 PARAMS ((struct bfd_link_info
*info
));
303 static bfd_vma elfNN_ia64_dtprel_base
304 PARAMS ((struct bfd_link_info
*info
));
305 static int elfNN_ia64_unwind_entry_compare
306 PARAMS ((const PTR
, const PTR
));
307 static bfd_boolean elfNN_ia64_choose_gp
308 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
309 static bfd_boolean elfNN_ia64_final_link
310 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
311 static bfd_boolean elfNN_ia64_relocate_section
312 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
, bfd
*input_bfd
,
313 asection
*input_section
, bfd_byte
*contents
,
314 Elf_Internal_Rela
*relocs
, Elf_Internal_Sym
*local_syms
,
315 asection
**local_sections
));
316 static bfd_boolean elfNN_ia64_finish_dynamic_symbol
317 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
,
318 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*sym
));
319 static bfd_boolean elfNN_ia64_finish_dynamic_sections
320 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
321 static bfd_boolean elfNN_ia64_set_private_flags
322 PARAMS ((bfd
*abfd
, flagword flags
));
323 static bfd_boolean elfNN_ia64_merge_private_bfd_data
324 PARAMS ((bfd
*ibfd
, bfd
*obfd
));
325 static bfd_boolean elfNN_ia64_print_private_bfd_data
326 PARAMS ((bfd
*abfd
, PTR ptr
));
327 static enum elf_reloc_type_class elfNN_ia64_reloc_type_class
328 PARAMS ((const Elf_Internal_Rela
*));
329 static bfd_boolean elfNN_ia64_hpux_vec
330 PARAMS ((const bfd_target
*vec
));
331 static void elfNN_hpux_post_process_headers
332 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
333 bfd_boolean elfNN_hpux_backend_section_from_bfd_section
334 PARAMS ((bfd
*abfd
, asection
*sec
, int *retval
));
336 /* ia64-specific relocation. */
338 /* Perform a relocation. Not much to do here as all the hard work is
339 done in elfNN_ia64_final_link_relocate. */
340 static bfd_reloc_status_type
341 elfNN_ia64_reloc (abfd
, reloc
, sym
, data
, input_section
,
342 output_bfd
, error_message
)
343 bfd
*abfd ATTRIBUTE_UNUSED
;
345 asymbol
*sym ATTRIBUTE_UNUSED
;
346 PTR data ATTRIBUTE_UNUSED
;
347 asection
*input_section
;
349 char **error_message
;
353 reloc
->address
+= input_section
->output_offset
;
357 if (input_section
->flags
& SEC_DEBUGGING
)
358 return bfd_reloc_continue
;
360 *error_message
= "Unsupported call to elfNN_ia64_reloc";
361 return bfd_reloc_notsupported
;
364 #define IA64_HOWTO(TYPE, NAME, SIZE, PCREL, IN) \
365 HOWTO (TYPE, 0, SIZE, 0, PCREL, 0, complain_overflow_signed, \
366 elfNN_ia64_reloc, NAME, FALSE, 0, -1, IN)
368 /* This table has to be sorted according to increasing number of the
370 static reloc_howto_type ia64_howto_table
[] =
372 IA64_HOWTO (R_IA64_NONE
, "NONE", 0, FALSE
, TRUE
),
374 IA64_HOWTO (R_IA64_IMM14
, "IMM14", 0, FALSE
, TRUE
),
375 IA64_HOWTO (R_IA64_IMM22
, "IMM22", 0, FALSE
, TRUE
),
376 IA64_HOWTO (R_IA64_IMM64
, "IMM64", 0, FALSE
, TRUE
),
377 IA64_HOWTO (R_IA64_DIR32MSB
, "DIR32MSB", 2, FALSE
, TRUE
),
378 IA64_HOWTO (R_IA64_DIR32LSB
, "DIR32LSB", 2, FALSE
, TRUE
),
379 IA64_HOWTO (R_IA64_DIR64MSB
, "DIR64MSB", 4, FALSE
, TRUE
),
380 IA64_HOWTO (R_IA64_DIR64LSB
, "DIR64LSB", 4, FALSE
, TRUE
),
382 IA64_HOWTO (R_IA64_GPREL22
, "GPREL22", 0, FALSE
, TRUE
),
383 IA64_HOWTO (R_IA64_GPREL64I
, "GPREL64I", 0, FALSE
, TRUE
),
384 IA64_HOWTO (R_IA64_GPREL32MSB
, "GPREL32MSB", 2, FALSE
, TRUE
),
385 IA64_HOWTO (R_IA64_GPREL32LSB
, "GPREL32LSB", 2, FALSE
, TRUE
),
386 IA64_HOWTO (R_IA64_GPREL64MSB
, "GPREL64MSB", 4, FALSE
, TRUE
),
387 IA64_HOWTO (R_IA64_GPREL64LSB
, "GPREL64LSB", 4, FALSE
, TRUE
),
389 IA64_HOWTO (R_IA64_LTOFF22
, "LTOFF22", 0, FALSE
, TRUE
),
390 IA64_HOWTO (R_IA64_LTOFF64I
, "LTOFF64I", 0, FALSE
, TRUE
),
392 IA64_HOWTO (R_IA64_PLTOFF22
, "PLTOFF22", 0, FALSE
, TRUE
),
393 IA64_HOWTO (R_IA64_PLTOFF64I
, "PLTOFF64I", 0, FALSE
, TRUE
),
394 IA64_HOWTO (R_IA64_PLTOFF64MSB
, "PLTOFF64MSB", 4, FALSE
, TRUE
),
395 IA64_HOWTO (R_IA64_PLTOFF64LSB
, "PLTOFF64LSB", 4, FALSE
, TRUE
),
397 IA64_HOWTO (R_IA64_FPTR64I
, "FPTR64I", 0, FALSE
, TRUE
),
398 IA64_HOWTO (R_IA64_FPTR32MSB
, "FPTR32MSB", 2, FALSE
, TRUE
),
399 IA64_HOWTO (R_IA64_FPTR32LSB
, "FPTR32LSB", 2, FALSE
, TRUE
),
400 IA64_HOWTO (R_IA64_FPTR64MSB
, "FPTR64MSB", 4, FALSE
, TRUE
),
401 IA64_HOWTO (R_IA64_FPTR64LSB
, "FPTR64LSB", 4, FALSE
, TRUE
),
403 IA64_HOWTO (R_IA64_PCREL60B
, "PCREL60B", 0, TRUE
, TRUE
),
404 IA64_HOWTO (R_IA64_PCREL21B
, "PCREL21B", 0, TRUE
, TRUE
),
405 IA64_HOWTO (R_IA64_PCREL21M
, "PCREL21M", 0, TRUE
, TRUE
),
406 IA64_HOWTO (R_IA64_PCREL21F
, "PCREL21F", 0, TRUE
, TRUE
),
407 IA64_HOWTO (R_IA64_PCREL32MSB
, "PCREL32MSB", 2, TRUE
, TRUE
),
408 IA64_HOWTO (R_IA64_PCREL32LSB
, "PCREL32LSB", 2, TRUE
, TRUE
),
409 IA64_HOWTO (R_IA64_PCREL64MSB
, "PCREL64MSB", 4, TRUE
, TRUE
),
410 IA64_HOWTO (R_IA64_PCREL64LSB
, "PCREL64LSB", 4, TRUE
, TRUE
),
412 IA64_HOWTO (R_IA64_LTOFF_FPTR22
, "LTOFF_FPTR22", 0, FALSE
, TRUE
),
413 IA64_HOWTO (R_IA64_LTOFF_FPTR64I
, "LTOFF_FPTR64I", 0, FALSE
, TRUE
),
414 IA64_HOWTO (R_IA64_LTOFF_FPTR32MSB
, "LTOFF_FPTR32MSB", 2, FALSE
, TRUE
),
415 IA64_HOWTO (R_IA64_LTOFF_FPTR32LSB
, "LTOFF_FPTR32LSB", 2, FALSE
, TRUE
),
416 IA64_HOWTO (R_IA64_LTOFF_FPTR64MSB
, "LTOFF_FPTR64MSB", 4, FALSE
, TRUE
),
417 IA64_HOWTO (R_IA64_LTOFF_FPTR64LSB
, "LTOFF_FPTR64LSB", 4, FALSE
, TRUE
),
419 IA64_HOWTO (R_IA64_SEGREL32MSB
, "SEGREL32MSB", 2, FALSE
, TRUE
),
420 IA64_HOWTO (R_IA64_SEGREL32LSB
, "SEGREL32LSB", 2, FALSE
, TRUE
),
421 IA64_HOWTO (R_IA64_SEGREL64MSB
, "SEGREL64MSB", 4, FALSE
, TRUE
),
422 IA64_HOWTO (R_IA64_SEGREL64LSB
, "SEGREL64LSB", 4, FALSE
, TRUE
),
424 IA64_HOWTO (R_IA64_SECREL32MSB
, "SECREL32MSB", 2, FALSE
, TRUE
),
425 IA64_HOWTO (R_IA64_SECREL32LSB
, "SECREL32LSB", 2, FALSE
, TRUE
),
426 IA64_HOWTO (R_IA64_SECREL64MSB
, "SECREL64MSB", 4, FALSE
, TRUE
),
427 IA64_HOWTO (R_IA64_SECREL64LSB
, "SECREL64LSB", 4, FALSE
, TRUE
),
429 IA64_HOWTO (R_IA64_REL32MSB
, "REL32MSB", 2, FALSE
, TRUE
),
430 IA64_HOWTO (R_IA64_REL32LSB
, "REL32LSB", 2, FALSE
, TRUE
),
431 IA64_HOWTO (R_IA64_REL64MSB
, "REL64MSB", 4, FALSE
, TRUE
),
432 IA64_HOWTO (R_IA64_REL64LSB
, "REL64LSB", 4, FALSE
, TRUE
),
434 IA64_HOWTO (R_IA64_LTV32MSB
, "LTV32MSB", 2, FALSE
, TRUE
),
435 IA64_HOWTO (R_IA64_LTV32LSB
, "LTV32LSB", 2, FALSE
, TRUE
),
436 IA64_HOWTO (R_IA64_LTV64MSB
, "LTV64MSB", 4, FALSE
, TRUE
),
437 IA64_HOWTO (R_IA64_LTV64LSB
, "LTV64LSB", 4, FALSE
, TRUE
),
439 IA64_HOWTO (R_IA64_PCREL21BI
, "PCREL21BI", 0, TRUE
, TRUE
),
440 IA64_HOWTO (R_IA64_PCREL22
, "PCREL22", 0, TRUE
, TRUE
),
441 IA64_HOWTO (R_IA64_PCREL64I
, "PCREL64I", 0, TRUE
, TRUE
),
443 IA64_HOWTO (R_IA64_IPLTMSB
, "IPLTMSB", 4, FALSE
, TRUE
),
444 IA64_HOWTO (R_IA64_IPLTLSB
, "IPLTLSB", 4, FALSE
, TRUE
),
445 IA64_HOWTO (R_IA64_COPY
, "COPY", 4, FALSE
, TRUE
),
446 IA64_HOWTO (R_IA64_LTOFF22X
, "LTOFF22X", 0, FALSE
, TRUE
),
447 IA64_HOWTO (R_IA64_LDXMOV
, "LDXMOV", 0, FALSE
, TRUE
),
449 IA64_HOWTO (R_IA64_TPREL14
, "TPREL14", 0, FALSE
, FALSE
),
450 IA64_HOWTO (R_IA64_TPREL22
, "TPREL22", 0, FALSE
, FALSE
),
451 IA64_HOWTO (R_IA64_TPREL64I
, "TPREL64I", 0, FALSE
, FALSE
),
452 IA64_HOWTO (R_IA64_TPREL64MSB
, "TPREL64MSB", 4, FALSE
, FALSE
),
453 IA64_HOWTO (R_IA64_TPREL64LSB
, "TPREL64LSB", 4, FALSE
, FALSE
),
454 IA64_HOWTO (R_IA64_LTOFF_TPREL22
, "LTOFF_TPREL22", 0, FALSE
, FALSE
),
456 IA64_HOWTO (R_IA64_DTPMOD64MSB
, "DTPMOD64MSB", 4, FALSE
, FALSE
),
457 IA64_HOWTO (R_IA64_DTPMOD64LSB
, "DTPMOD64LSB", 4, FALSE
, FALSE
),
458 IA64_HOWTO (R_IA64_LTOFF_DTPMOD22
, "LTOFF_DTPMOD22", 0, FALSE
, FALSE
),
460 IA64_HOWTO (R_IA64_DTPREL14
, "DTPREL14", 0, FALSE
, FALSE
),
461 IA64_HOWTO (R_IA64_DTPREL22
, "DTPREL22", 0, FALSE
, FALSE
),
462 IA64_HOWTO (R_IA64_DTPREL64I
, "DTPREL64I", 0, FALSE
, FALSE
),
463 IA64_HOWTO (R_IA64_DTPREL32MSB
, "DTPREL32MSB", 2, FALSE
, FALSE
),
464 IA64_HOWTO (R_IA64_DTPREL32LSB
, "DTPREL32LSB", 2, FALSE
, FALSE
),
465 IA64_HOWTO (R_IA64_DTPREL64MSB
, "DTPREL64MSB", 4, FALSE
, FALSE
),
466 IA64_HOWTO (R_IA64_DTPREL64LSB
, "DTPREL64LSB", 4, FALSE
, FALSE
),
467 IA64_HOWTO (R_IA64_LTOFF_DTPREL22
, "LTOFF_DTPREL22", 0, FALSE
, FALSE
),
470 static unsigned char elf_code_to_howto_index
[R_IA64_MAX_RELOC_CODE
+ 1];
472 /* Given a BFD reloc type, return the matching HOWTO structure. */
474 static reloc_howto_type
*
478 static int inited
= 0;
485 memset (elf_code_to_howto_index
, 0xff, sizeof (elf_code_to_howto_index
));
486 for (i
= 0; i
< NELEMS (ia64_howto_table
); ++i
)
487 elf_code_to_howto_index
[ia64_howto_table
[i
].type
] = i
;
490 BFD_ASSERT (rtype
<= R_IA64_MAX_RELOC_CODE
);
491 i
= elf_code_to_howto_index
[rtype
];
492 if (i
>= NELEMS (ia64_howto_table
))
494 return ia64_howto_table
+ i
;
497 static reloc_howto_type
*
498 elfNN_ia64_reloc_type_lookup (abfd
, bfd_code
)
499 bfd
*abfd ATTRIBUTE_UNUSED
;
500 bfd_reloc_code_real_type bfd_code
;
506 case BFD_RELOC_NONE
: rtype
= R_IA64_NONE
; break;
508 case BFD_RELOC_IA64_IMM14
: rtype
= R_IA64_IMM14
; break;
509 case BFD_RELOC_IA64_IMM22
: rtype
= R_IA64_IMM22
; break;
510 case BFD_RELOC_IA64_IMM64
: rtype
= R_IA64_IMM64
; break;
512 case BFD_RELOC_IA64_DIR32MSB
: rtype
= R_IA64_DIR32MSB
; break;
513 case BFD_RELOC_IA64_DIR32LSB
: rtype
= R_IA64_DIR32LSB
; break;
514 case BFD_RELOC_IA64_DIR64MSB
: rtype
= R_IA64_DIR64MSB
; break;
515 case BFD_RELOC_IA64_DIR64LSB
: rtype
= R_IA64_DIR64LSB
; break;
517 case BFD_RELOC_IA64_GPREL22
: rtype
= R_IA64_GPREL22
; break;
518 case BFD_RELOC_IA64_GPREL64I
: rtype
= R_IA64_GPREL64I
; break;
519 case BFD_RELOC_IA64_GPREL32MSB
: rtype
= R_IA64_GPREL32MSB
; break;
520 case BFD_RELOC_IA64_GPREL32LSB
: rtype
= R_IA64_GPREL32LSB
; break;
521 case BFD_RELOC_IA64_GPREL64MSB
: rtype
= R_IA64_GPREL64MSB
; break;
522 case BFD_RELOC_IA64_GPREL64LSB
: rtype
= R_IA64_GPREL64LSB
; break;
524 case BFD_RELOC_IA64_LTOFF22
: rtype
= R_IA64_LTOFF22
; break;
525 case BFD_RELOC_IA64_LTOFF64I
: rtype
= R_IA64_LTOFF64I
; break;
527 case BFD_RELOC_IA64_PLTOFF22
: rtype
= R_IA64_PLTOFF22
; break;
528 case BFD_RELOC_IA64_PLTOFF64I
: rtype
= R_IA64_PLTOFF64I
; break;
529 case BFD_RELOC_IA64_PLTOFF64MSB
: rtype
= R_IA64_PLTOFF64MSB
; break;
530 case BFD_RELOC_IA64_PLTOFF64LSB
: rtype
= R_IA64_PLTOFF64LSB
; break;
531 case BFD_RELOC_IA64_FPTR64I
: rtype
= R_IA64_FPTR64I
; break;
532 case BFD_RELOC_IA64_FPTR32MSB
: rtype
= R_IA64_FPTR32MSB
; break;
533 case BFD_RELOC_IA64_FPTR32LSB
: rtype
= R_IA64_FPTR32LSB
; break;
534 case BFD_RELOC_IA64_FPTR64MSB
: rtype
= R_IA64_FPTR64MSB
; break;
535 case BFD_RELOC_IA64_FPTR64LSB
: rtype
= R_IA64_FPTR64LSB
; break;
537 case BFD_RELOC_IA64_PCREL21B
: rtype
= R_IA64_PCREL21B
; break;
538 case BFD_RELOC_IA64_PCREL21BI
: rtype
= R_IA64_PCREL21BI
; break;
539 case BFD_RELOC_IA64_PCREL21M
: rtype
= R_IA64_PCREL21M
; break;
540 case BFD_RELOC_IA64_PCREL21F
: rtype
= R_IA64_PCREL21F
; break;
541 case BFD_RELOC_IA64_PCREL22
: rtype
= R_IA64_PCREL22
; break;
542 case BFD_RELOC_IA64_PCREL60B
: rtype
= R_IA64_PCREL60B
; break;
543 case BFD_RELOC_IA64_PCREL64I
: rtype
= R_IA64_PCREL64I
; break;
544 case BFD_RELOC_IA64_PCREL32MSB
: rtype
= R_IA64_PCREL32MSB
; break;
545 case BFD_RELOC_IA64_PCREL32LSB
: rtype
= R_IA64_PCREL32LSB
; break;
546 case BFD_RELOC_IA64_PCREL64MSB
: rtype
= R_IA64_PCREL64MSB
; break;
547 case BFD_RELOC_IA64_PCREL64LSB
: rtype
= R_IA64_PCREL64LSB
; break;
549 case BFD_RELOC_IA64_LTOFF_FPTR22
: rtype
= R_IA64_LTOFF_FPTR22
; break;
550 case BFD_RELOC_IA64_LTOFF_FPTR64I
: rtype
= R_IA64_LTOFF_FPTR64I
; break;
551 case BFD_RELOC_IA64_LTOFF_FPTR32MSB
: rtype
= R_IA64_LTOFF_FPTR32MSB
; break;
552 case BFD_RELOC_IA64_LTOFF_FPTR32LSB
: rtype
= R_IA64_LTOFF_FPTR32LSB
; break;
553 case BFD_RELOC_IA64_LTOFF_FPTR64MSB
: rtype
= R_IA64_LTOFF_FPTR64MSB
; break;
554 case BFD_RELOC_IA64_LTOFF_FPTR64LSB
: rtype
= R_IA64_LTOFF_FPTR64LSB
; break;
556 case BFD_RELOC_IA64_SEGREL32MSB
: rtype
= R_IA64_SEGREL32MSB
; break;
557 case BFD_RELOC_IA64_SEGREL32LSB
: rtype
= R_IA64_SEGREL32LSB
; break;
558 case BFD_RELOC_IA64_SEGREL64MSB
: rtype
= R_IA64_SEGREL64MSB
; break;
559 case BFD_RELOC_IA64_SEGREL64LSB
: rtype
= R_IA64_SEGREL64LSB
; break;
561 case BFD_RELOC_IA64_SECREL32MSB
: rtype
= R_IA64_SECREL32MSB
; break;
562 case BFD_RELOC_IA64_SECREL32LSB
: rtype
= R_IA64_SECREL32LSB
; break;
563 case BFD_RELOC_IA64_SECREL64MSB
: rtype
= R_IA64_SECREL64MSB
; break;
564 case BFD_RELOC_IA64_SECREL64LSB
: rtype
= R_IA64_SECREL64LSB
; break;
566 case BFD_RELOC_IA64_REL32MSB
: rtype
= R_IA64_REL32MSB
; break;
567 case BFD_RELOC_IA64_REL32LSB
: rtype
= R_IA64_REL32LSB
; break;
568 case BFD_RELOC_IA64_REL64MSB
: rtype
= R_IA64_REL64MSB
; break;
569 case BFD_RELOC_IA64_REL64LSB
: rtype
= R_IA64_REL64LSB
; break;
571 case BFD_RELOC_IA64_LTV32MSB
: rtype
= R_IA64_LTV32MSB
; break;
572 case BFD_RELOC_IA64_LTV32LSB
: rtype
= R_IA64_LTV32LSB
; break;
573 case BFD_RELOC_IA64_LTV64MSB
: rtype
= R_IA64_LTV64MSB
; break;
574 case BFD_RELOC_IA64_LTV64LSB
: rtype
= R_IA64_LTV64LSB
; break;
576 case BFD_RELOC_IA64_IPLTMSB
: rtype
= R_IA64_IPLTMSB
; break;
577 case BFD_RELOC_IA64_IPLTLSB
: rtype
= R_IA64_IPLTLSB
; break;
578 case BFD_RELOC_IA64_COPY
: rtype
= R_IA64_COPY
; break;
579 case BFD_RELOC_IA64_LTOFF22X
: rtype
= R_IA64_LTOFF22X
; break;
580 case BFD_RELOC_IA64_LDXMOV
: rtype
= R_IA64_LDXMOV
; break;
582 case BFD_RELOC_IA64_TPREL14
: rtype
= R_IA64_TPREL14
; break;
583 case BFD_RELOC_IA64_TPREL22
: rtype
= R_IA64_TPREL22
; break;
584 case BFD_RELOC_IA64_TPREL64I
: rtype
= R_IA64_TPREL64I
; break;
585 case BFD_RELOC_IA64_TPREL64MSB
: rtype
= R_IA64_TPREL64MSB
; break;
586 case BFD_RELOC_IA64_TPREL64LSB
: rtype
= R_IA64_TPREL64LSB
; break;
587 case BFD_RELOC_IA64_LTOFF_TPREL22
: rtype
= R_IA64_LTOFF_TPREL22
; break;
589 case BFD_RELOC_IA64_DTPMOD64MSB
: rtype
= R_IA64_DTPMOD64MSB
; break;
590 case BFD_RELOC_IA64_DTPMOD64LSB
: rtype
= R_IA64_DTPMOD64LSB
; break;
591 case BFD_RELOC_IA64_LTOFF_DTPMOD22
: rtype
= R_IA64_LTOFF_DTPMOD22
; break;
593 case BFD_RELOC_IA64_DTPREL14
: rtype
= R_IA64_DTPREL14
; break;
594 case BFD_RELOC_IA64_DTPREL22
: rtype
= R_IA64_DTPREL22
; break;
595 case BFD_RELOC_IA64_DTPREL64I
: rtype
= R_IA64_DTPREL64I
; break;
596 case BFD_RELOC_IA64_DTPREL32MSB
: rtype
= R_IA64_DTPREL32MSB
; break;
597 case BFD_RELOC_IA64_DTPREL32LSB
: rtype
= R_IA64_DTPREL32LSB
; break;
598 case BFD_RELOC_IA64_DTPREL64MSB
: rtype
= R_IA64_DTPREL64MSB
; break;
599 case BFD_RELOC_IA64_DTPREL64LSB
: rtype
= R_IA64_DTPREL64LSB
; break;
600 case BFD_RELOC_IA64_LTOFF_DTPREL22
: rtype
= R_IA64_LTOFF_DTPREL22
; break;
604 return lookup_howto (rtype
);
607 /* Given a ELF reloc, return the matching HOWTO structure. */
610 elfNN_ia64_info_to_howto (abfd
, bfd_reloc
, elf_reloc
)
611 bfd
*abfd ATTRIBUTE_UNUSED
;
613 Elf_Internal_Rela
*elf_reloc
;
616 = lookup_howto ((unsigned int) ELFNN_R_TYPE (elf_reloc
->r_info
));
619 #define PLT_HEADER_SIZE (3 * 16)
620 #define PLT_MIN_ENTRY_SIZE (1 * 16)
621 #define PLT_FULL_ENTRY_SIZE (2 * 16)
622 #define PLT_RESERVED_WORDS 3
624 static const bfd_byte plt_header
[PLT_HEADER_SIZE
] =
626 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
627 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
628 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
629 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
630 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
631 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
632 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
633 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
634 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
637 static const bfd_byte plt_min_entry
[PLT_MIN_ENTRY_SIZE
] =
639 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
640 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
641 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
644 static const bfd_byte plt_full_entry
[PLT_FULL_ENTRY_SIZE
] =
646 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
647 0x00, 0x41, 0x3c, 0x70, 0x29, 0xc0, /* ld8.acq r16=[r15],8*/
648 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
649 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
650 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
651 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
654 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
656 static const bfd_byte oor_brl
[16] =
658 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
659 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
660 0x00, 0x00, 0x00, 0xc0
663 static const bfd_byte oor_ip
[48] =
665 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
666 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
667 0x01, 0x00, 0x00, 0x60,
668 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
669 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
670 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
671 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
672 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
673 0x60, 0x00, 0x80, 0x00 /* br b6;; */
676 static size_t oor_branch_size
= sizeof (oor_brl
);
679 bfd_elfNN_ia64_after_parse (int itanium
)
681 oor_branch_size
= itanium
? sizeof (oor_ip
) : sizeof (oor_brl
);
685 elfNN_ia64_relax_brl (bfd_byte
*contents
, bfd_vma off
)
687 unsigned int template, t0
, t1
, t2
, t3
;
690 hit_addr
= (bfd_byte
*) (contents
+ off
);
691 hit_addr
-= (long) hit_addr
& 0x3;
692 t0
= bfd_getl32 (hit_addr
+ 0);
693 t1
= bfd_getl32 (hit_addr
+ 4);
694 t2
= bfd_getl32 (hit_addr
+ 8);
695 t3
= bfd_getl32 (hit_addr
+ 12);
697 /* Turn a MLX bundle into a MBB bundle with the same stop-bit
700 if ((t0
& 0x1f) == 5)
703 /* Keep the instruction in slot 0. */
709 /* For slot 2, turn brl into br by masking out bit 40. */
713 /* Use nop.b for slot 1. */
716 bfd_putl32 (t0
, hit_addr
);
717 bfd_putl32 (t1
, hit_addr
+ 4);
718 bfd_putl32 (t2
, hit_addr
+ 8);
719 bfd_putl32 (t3
, hit_addr
+ 12);
722 /* These functions do relaxation for IA-64 ELF. */
725 elfNN_ia64_relax_section (abfd
, sec
, link_info
, again
)
728 struct bfd_link_info
*link_info
;
733 struct one_fixup
*next
;
739 Elf_Internal_Shdr
*symtab_hdr
;
740 Elf_Internal_Rela
*internal_relocs
;
741 Elf_Internal_Rela
*irel
, *irelend
;
743 Elf_Internal_Sym
*isymbuf
= NULL
;
744 struct elfNN_ia64_link_hash_table
*ia64_info
;
745 struct one_fixup
*fixups
= NULL
;
746 bfd_boolean changed_contents
= FALSE
;
747 bfd_boolean changed_relocs
= FALSE
;
748 bfd_boolean changed_got
= FALSE
;
751 /* Assume we're not going to change any sizes, and we'll only need
755 /* Don't even try to relax for non-ELF outputs. */
756 if (!is_elf_hash_table (link_info
->hash
))
759 /* Nothing to do if there are no relocations or there is no need for
760 the relax finalize pass. */
761 if ((sec
->flags
& SEC_RELOC
) == 0
762 || sec
->reloc_count
== 0
763 || (!link_info
->need_relax_finalize
764 && sec
->need_finalize_relax
== 0))
767 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
769 /* Load the relocations for this section. */
770 internal_relocs
= (_bfd_elf_link_read_relocs
771 (abfd
, sec
, (PTR
) NULL
, (Elf_Internal_Rela
*) NULL
,
772 link_info
->keep_memory
));
773 if (internal_relocs
== NULL
)
776 ia64_info
= elfNN_ia64_hash_table (link_info
);
777 irelend
= internal_relocs
+ sec
->reloc_count
;
779 /* Get the section contents. */
780 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
781 contents
= elf_section_data (sec
)->this_hdr
.contents
;
784 if (!bfd_malloc_and_get_section (abfd
, sec
, &contents
))
788 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
790 unsigned long r_type
= ELFNN_R_TYPE (irel
->r_info
);
791 bfd_vma symaddr
, reladdr
, trampoff
, toff
, roff
;
795 bfd_boolean is_branch
;
796 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
801 case R_IA64_PCREL21B
:
802 case R_IA64_PCREL21BI
:
803 case R_IA64_PCREL21M
:
804 case R_IA64_PCREL21F
:
805 /* In the finalize pass, all br relaxations are done. We can
807 if (!link_info
->need_relax_finalize
)
812 case R_IA64_PCREL60B
:
813 /* We can't optimize brl to br before the finalize pass since
814 br relaxations will increase the code size. Defer it to
815 the finalize pass. */
816 if (link_info
->need_relax_finalize
)
818 sec
->need_finalize_relax
= 1;
824 case R_IA64_LTOFF22X
:
826 /* We can't relax ldx/mov before the finalize pass since
827 br relaxations will increase the code size. Defer it to
828 the finalize pass. */
829 if (link_info
->need_relax_finalize
)
831 sec
->need_finalize_relax
= 1;
841 /* Get the value of the symbol referred to by the reloc. */
842 if (ELFNN_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
844 /* A local symbol. */
845 Elf_Internal_Sym
*isym
;
847 /* Read this BFD's local symbols. */
850 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
852 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
853 symtab_hdr
->sh_info
, 0,
859 isym
= isymbuf
+ ELFNN_R_SYM (irel
->r_info
);
860 if (isym
->st_shndx
== SHN_UNDEF
)
861 continue; /* We can't do anything with undefined symbols. */
862 else if (isym
->st_shndx
== SHN_ABS
)
863 tsec
= bfd_abs_section_ptr
;
864 else if (isym
->st_shndx
== SHN_COMMON
)
865 tsec
= bfd_com_section_ptr
;
866 else if (isym
->st_shndx
== SHN_IA_64_ANSI_COMMON
)
867 tsec
= bfd_com_section_ptr
;
869 tsec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
871 toff
= isym
->st_value
;
872 dyn_i
= get_dyn_sym_info (ia64_info
, NULL
, abfd
, irel
, FALSE
);
873 symtype
= ELF_ST_TYPE (isym
->st_info
);
878 struct elf_link_hash_entry
*h
;
880 indx
= ELFNN_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
881 h
= elf_sym_hashes (abfd
)[indx
];
882 BFD_ASSERT (h
!= NULL
);
884 while (h
->root
.type
== bfd_link_hash_indirect
885 || h
->root
.type
== bfd_link_hash_warning
)
886 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
888 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, irel
, FALSE
);
890 /* For branches to dynamic symbols, we're interested instead
891 in a branch to the PLT entry. */
892 if (is_branch
&& dyn_i
&& dyn_i
->want_plt2
)
894 /* Internal branches shouldn't be sent to the PLT.
895 Leave this for now and we'll give an error later. */
896 if (r_type
!= R_IA64_PCREL21B
)
899 tsec
= ia64_info
->plt_sec
;
900 toff
= dyn_i
->plt2_offset
;
901 BFD_ASSERT (irel
->r_addend
== 0);
904 /* Can't do anything else with dynamic symbols. */
905 else if (elfNN_ia64_dynamic_symbol_p (h
, link_info
, r_type
))
910 /* We can't do anything with undefined symbols. */
911 if (h
->root
.type
== bfd_link_hash_undefined
912 || h
->root
.type
== bfd_link_hash_undefweak
)
915 tsec
= h
->root
.u
.def
.section
;
916 toff
= h
->root
.u
.def
.value
;
922 if (tsec
->sec_info_type
== ELF_INFO_TYPE_MERGE
)
924 /* At this stage in linking, no SEC_MERGE symbol has been
925 adjusted, so all references to such symbols need to be
926 passed through _bfd_merged_section_offset. (Later, in
927 relocate_section, all SEC_MERGE symbols *except* for
928 section symbols have been adjusted.)
930 gas may reduce relocations against symbols in SEC_MERGE
931 sections to a relocation against the section symbol when
932 the original addend was zero. When the reloc is against
933 a section symbol we should include the addend in the
934 offset passed to _bfd_merged_section_offset, since the
935 location of interest is the original symbol. On the
936 other hand, an access to "sym+addend" where "sym" is not
937 a section symbol should not include the addend; Such an
938 access is presumed to be an offset from "sym"; The
939 location of interest is just "sym". */
940 if (symtype
== STT_SECTION
)
941 toff
+= irel
->r_addend
;
943 toff
= _bfd_merged_section_offset (abfd
, &tsec
,
944 elf_section_data (tsec
)->sec_info
,
947 if (symtype
!= STT_SECTION
)
948 toff
+= irel
->r_addend
;
951 toff
+= irel
->r_addend
;
953 symaddr
= tsec
->output_section
->vma
+ tsec
->output_offset
+ toff
;
955 roff
= irel
->r_offset
;
959 bfd_signed_vma offset
;
961 reladdr
= (sec
->output_section
->vma
963 + roff
) & (bfd_vma
) -4;
965 /* If the branch is in range, no need to do anything. */
966 if ((bfd_signed_vma
) (symaddr
- reladdr
) >= -0x1000000
967 && (bfd_signed_vma
) (symaddr
- reladdr
) <= 0x0FFFFF0)
969 /* If the 60-bit branch is in 21-bit range, optimize it. */
970 if (r_type
== R_IA64_PCREL60B
)
972 elfNN_ia64_relax_brl (contents
, roff
);
975 = ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
978 /* If the original relocation offset points to slot
979 1, change it to slot 2. */
980 if ((irel
->r_offset
& 3) == 1)
986 else if (r_type
== R_IA64_PCREL60B
)
989 /* We can't put a trampoline in a .init/.fini section. Issue
991 if (strcmp (sec
->output_section
->name
, ".init") == 0
992 || strcmp (sec
->output_section
->name
, ".fini") == 0)
994 (*_bfd_error_handler
)
995 (_("%B: Can't relax br at 0x%lx in section `%A'. Please use brl or indirect branch."),
996 sec
->owner
, sec
, (unsigned long) roff
);
997 bfd_set_error (bfd_error_bad_value
);
1001 /* If the branch and target are in the same section, you've
1002 got one honking big section and we can't help you unless
1003 you are branching backwards. You'll get an error message
1005 if (tsec
== sec
&& toff
> roff
)
1008 /* Look for an existing fixup to this address. */
1009 for (f
= fixups
; f
; f
= f
->next
)
1010 if (f
->tsec
== tsec
&& f
->toff
== toff
)
1015 /* Two alternatives: If it's a branch to a PLT entry, we can
1016 make a copy of the FULL_PLT entry. Otherwise, we'll have
1017 to use a `brl' insn to get where we're going. */
1021 if (tsec
== ia64_info
->plt_sec
)
1022 size
= sizeof (plt_full_entry
);
1024 size
= oor_branch_size
;
1026 /* Resize the current section to make room for the new branch. */
1027 trampoff
= (sec
->size
+ 15) & (bfd_vma
) -16;
1029 /* If trampoline is out of range, there is nothing we
1031 offset
= trampoff
- (roff
& (bfd_vma
) -4);
1032 if (offset
< -0x1000000 || offset
> 0x0FFFFF0)
1035 amt
= trampoff
+ size
;
1036 contents
= (bfd_byte
*) bfd_realloc (contents
, amt
);
1037 if (contents
== NULL
)
1041 if (tsec
== ia64_info
->plt_sec
)
1043 memcpy (contents
+ trampoff
, plt_full_entry
, size
);
1045 /* Hijack the old relocation for use as the PLTOFF reloc. */
1046 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1048 irel
->r_offset
= trampoff
;
1052 if (size
== sizeof (oor_ip
))
1054 memcpy (contents
+ trampoff
, oor_ip
, size
);
1055 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1057 irel
->r_addend
-= 16;
1058 irel
->r_offset
= trampoff
+ 2;
1062 memcpy (contents
+ trampoff
, oor_brl
, size
);
1063 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1065 irel
->r_offset
= trampoff
+ 2;
1070 /* Record the fixup so we don't do it again this section. */
1071 f
= (struct one_fixup
*)
1072 bfd_malloc ((bfd_size_type
) sizeof (*f
));
1076 f
->trampoff
= trampoff
;
1081 /* If trampoline is out of range, there is nothing we
1083 offset
= f
->trampoff
- (roff
& (bfd_vma
) -4);
1084 if (offset
< -0x1000000 || offset
> 0x0FFFFF0)
1087 /* Nop out the reloc, since we're finalizing things here. */
1088 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
1091 /* Fix up the existing branch to hit the trampoline. */
1092 if (elfNN_ia64_install_value (contents
+ roff
, offset
, r_type
)
1096 changed_contents
= TRUE
;
1097 changed_relocs
= TRUE
;
1104 bfd
*obfd
= sec
->output_section
->owner
;
1105 gp
= _bfd_get_gp_value (obfd
);
1108 if (!elfNN_ia64_choose_gp (obfd
, link_info
))
1110 gp
= _bfd_get_gp_value (obfd
);
1114 /* If the data is out of range, do nothing. */
1115 if ((bfd_signed_vma
) (symaddr
- gp
) >= 0x200000
1116 ||(bfd_signed_vma
) (symaddr
- gp
) < -0x200000)
1119 if (r_type
== R_IA64_LTOFF22X
)
1121 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1123 changed_relocs
= TRUE
;
1124 if (dyn_i
->want_gotx
)
1126 dyn_i
->want_gotx
= 0;
1127 changed_got
|= !dyn_i
->want_got
;
1132 elfNN_ia64_relax_ldxmov (contents
, roff
);
1133 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
1134 changed_contents
= TRUE
;
1135 changed_relocs
= TRUE
;
1140 /* ??? If we created fixups, this may push the code segment large
1141 enough that the data segment moves, which will change the GP.
1142 Reset the GP so that we re-calculate next round. We need to
1143 do this at the _beginning_ of the next round; now will not do. */
1145 /* Clean up and go home. */
1148 struct one_fixup
*f
= fixups
;
1149 fixups
= fixups
->next
;
1154 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
1156 if (! link_info
->keep_memory
)
1160 /* Cache the symbols for elf_link_input_bfd. */
1161 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
1165 if (contents
!= NULL
1166 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
1168 if (!changed_contents
&& !link_info
->keep_memory
)
1172 /* Cache the section contents for elf_link_input_bfd. */
1173 elf_section_data (sec
)->this_hdr
.contents
= contents
;
1177 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
1179 if (!changed_relocs
)
1180 free (internal_relocs
);
1182 elf_section_data (sec
)->relocs
= internal_relocs
;
1187 struct elfNN_ia64_allocate_data data
;
1188 data
.info
= link_info
;
1190 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
1192 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
1193 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
1194 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
1195 ia64_info
->got_sec
->size
= data
.ofs
;
1197 /* ??? Resize .rela.got too. */
1200 if (!link_info
->need_relax_finalize
)
1201 sec
->need_finalize_relax
= 0;
1203 *again
= changed_contents
|| changed_relocs
;
1207 if (isymbuf
!= NULL
&& (unsigned char *) isymbuf
!= symtab_hdr
->contents
)
1209 if (contents
!= NULL
1210 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
1212 if (internal_relocs
!= NULL
1213 && elf_section_data (sec
)->relocs
!= internal_relocs
)
1214 free (internal_relocs
);
1219 elfNN_ia64_relax_ldxmov (contents
, off
)
1224 bfd_vma dword
, insn
;
1226 switch ((int)off
& 0x3)
1228 case 0: shift
= 5; break;
1229 case 1: shift
= 14; off
+= 3; break;
1230 case 2: shift
= 23; off
+= 6; break;
1235 dword
= bfd_getl64 (contents
+ off
);
1236 insn
= (dword
>> shift
) & 0x1ffffffffffLL
;
1238 r1
= (insn
>> 6) & 127;
1239 r3
= (insn
>> 20) & 127;
1241 insn
= 0x8000000; /* nop */
1243 insn
= (insn
& 0x7f01fff) | 0x10800000000LL
; /* (qp) mov r1 = r3 */
1245 dword
&= ~(0x1ffffffffffLL
<< shift
);
1246 dword
|= (insn
<< shift
);
1247 bfd_putl64 (dword
, contents
+ off
);
1250 /* Return TRUE if NAME is an unwind table section name. */
1252 static inline bfd_boolean
1253 is_unwind_section_name (abfd
, name
)
1257 size_t len1
, len2
, len3
;
1259 if (elfNN_ia64_hpux_vec (abfd
->xvec
)
1260 && !strcmp (name
, ELF_STRING_ia64_unwind_hdr
))
1263 len1
= sizeof (ELF_STRING_ia64_unwind
) - 1;
1264 len2
= sizeof (ELF_STRING_ia64_unwind_info
) - 1;
1265 len3
= sizeof (ELF_STRING_ia64_unwind_once
) - 1;
1266 return ((strncmp (name
, ELF_STRING_ia64_unwind
, len1
) == 0
1267 && strncmp (name
, ELF_STRING_ia64_unwind_info
, len2
) != 0)
1268 || strncmp (name
, ELF_STRING_ia64_unwind_once
, len3
) == 0);
1271 /* Handle an IA-64 specific section when reading an object file. This
1272 is called when bfd_section_from_shdr finds a section with an unknown
1276 elfNN_ia64_section_from_shdr (bfd
*abfd
,
1277 Elf_Internal_Shdr
*hdr
,
1283 /* There ought to be a place to keep ELF backend specific flags, but
1284 at the moment there isn't one. We just keep track of the
1285 sections by their name, instead. Fortunately, the ABI gives
1286 suggested names for all the MIPS specific sections, so we will
1287 probably get away with this. */
1288 switch (hdr
->sh_type
)
1290 case SHT_IA_64_UNWIND
:
1291 case SHT_IA_64_HP_OPT_ANOT
:
1295 if (strcmp (name
, ELF_STRING_ia64_archext
) != 0)
1303 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
, shindex
))
1305 newsect
= hdr
->bfd_section
;
1310 /* Convert IA-64 specific section flags to bfd internal section flags. */
1312 /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
1316 elfNN_ia64_section_flags (flags
, hdr
)
1318 const Elf_Internal_Shdr
*hdr
;
1320 if (hdr
->sh_flags
& SHF_IA_64_SHORT
)
1321 *flags
|= SEC_SMALL_DATA
;
1326 /* Set the correct type for an IA-64 ELF section. We do this by the
1327 section name, which is a hack, but ought to work. */
1330 elfNN_ia64_fake_sections (abfd
, hdr
, sec
)
1331 bfd
*abfd ATTRIBUTE_UNUSED
;
1332 Elf_Internal_Shdr
*hdr
;
1335 register const char *name
;
1337 name
= bfd_get_section_name (abfd
, sec
);
1339 if (is_unwind_section_name (abfd
, name
))
1341 /* We don't have the sections numbered at this point, so sh_info
1342 is set later, in elfNN_ia64_final_write_processing. */
1343 hdr
->sh_type
= SHT_IA_64_UNWIND
;
1344 hdr
->sh_flags
|= SHF_LINK_ORDER
;
1346 else if (strcmp (name
, ELF_STRING_ia64_archext
) == 0)
1347 hdr
->sh_type
= SHT_IA_64_EXT
;
1348 else if (strcmp (name
, ".HP.opt_annot") == 0)
1349 hdr
->sh_type
= SHT_IA_64_HP_OPT_ANOT
;
1350 else if (strcmp (name
, ".reloc") == 0)
1351 /* This is an ugly, but unfortunately necessary hack that is
1352 needed when producing EFI binaries on IA-64. It tells
1353 elf.c:elf_fake_sections() not to consider ".reloc" as a section
1354 containing ELF relocation info. We need this hack in order to
1355 be able to generate ELF binaries that can be translated into
1356 EFI applications (which are essentially COFF objects). Those
1357 files contain a COFF ".reloc" section inside an ELFNN object,
1358 which would normally cause BFD to segfault because it would
1359 attempt to interpret this section as containing relocation
1360 entries for section "oc". With this hack enabled, ".reloc"
1361 will be treated as a normal data section, which will avoid the
1362 segfault. However, you won't be able to create an ELFNN binary
1363 with a section named "oc" that needs relocations, but that's
1364 the kind of ugly side-effects you get when detecting section
1365 types based on their names... In practice, this limitation is
1366 unlikely to bite. */
1367 hdr
->sh_type
= SHT_PROGBITS
;
1369 if (sec
->flags
& SEC_SMALL_DATA
)
1370 hdr
->sh_flags
|= SHF_IA_64_SHORT
;
1375 /* The final processing done just before writing out an IA-64 ELF
1379 elfNN_ia64_final_write_processing (abfd
, linker
)
1381 bfd_boolean linker ATTRIBUTE_UNUSED
;
1383 Elf_Internal_Shdr
*hdr
;
1386 for (s
= abfd
->sections
; s
; s
= s
->next
)
1388 hdr
= &elf_section_data (s
)->this_hdr
;
1389 switch (hdr
->sh_type
)
1391 case SHT_IA_64_UNWIND
:
1392 /* The IA-64 processor-specific ABI requires setting sh_link
1393 to the unwind section, whereas HP-UX requires sh_info to
1394 do so. For maximum compatibility, we'll set both for
1396 hdr
->sh_info
= hdr
->sh_link
;
1401 if (! elf_flags_init (abfd
))
1403 unsigned long flags
= 0;
1405 if (abfd
->xvec
->byteorder
== BFD_ENDIAN_BIG
)
1406 flags
|= EF_IA_64_BE
;
1407 if (bfd_get_mach (abfd
) == bfd_mach_ia64_elf64
)
1408 flags
|= EF_IA_64_ABI64
;
1410 elf_elfheader(abfd
)->e_flags
= flags
;
1411 elf_flags_init (abfd
) = TRUE
;
1415 /* Hook called by the linker routine which adds symbols from an object
1416 file. We use it to put .comm items in .sbss, and not .bss. */
1419 elfNN_ia64_add_symbol_hook (abfd
, info
, sym
, namep
, flagsp
, secp
, valp
)
1421 struct bfd_link_info
*info
;
1422 Elf_Internal_Sym
*sym
;
1423 const char **namep ATTRIBUTE_UNUSED
;
1424 flagword
*flagsp ATTRIBUTE_UNUSED
;
1428 if (sym
->st_shndx
== SHN_COMMON
1429 && !info
->relocatable
1430 && sym
->st_size
<= elf_gp_size (abfd
))
1432 /* Common symbols less than or equal to -G nn bytes are
1433 automatically put into .sbss. */
1435 asection
*scomm
= bfd_get_section_by_name (abfd
, ".scommon");
1439 scomm
= bfd_make_section_with_flags (abfd
, ".scommon",
1442 | SEC_LINKER_CREATED
));
1448 *valp
= sym
->st_size
;
1454 /* Return the number of additional phdrs we will need. */
1457 elfNN_ia64_additional_program_headers (abfd
)
1463 /* See if we need a PT_IA_64_ARCHEXT segment. */
1464 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1465 if (s
&& (s
->flags
& SEC_LOAD
))
1468 /* Count how many PT_IA_64_UNWIND segments we need. */
1469 for (s
= abfd
->sections
; s
; s
= s
->next
)
1470 if (is_unwind_section_name (abfd
, s
->name
) && (s
->flags
& SEC_LOAD
))
1477 elfNN_ia64_modify_segment_map (abfd
, info
)
1479 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
1481 struct elf_segment_map
*m
, **pm
;
1482 Elf_Internal_Shdr
*hdr
;
1485 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1486 all PT_LOAD segments. */
1487 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1488 if (s
&& (s
->flags
& SEC_LOAD
))
1490 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1491 if (m
->p_type
== PT_IA_64_ARCHEXT
)
1495 m
= ((struct elf_segment_map
*)
1496 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1500 m
->p_type
= PT_IA_64_ARCHEXT
;
1504 /* We want to put it after the PHDR and INTERP segments. */
1505 pm
= &elf_tdata (abfd
)->segment_map
;
1507 && ((*pm
)->p_type
== PT_PHDR
1508 || (*pm
)->p_type
== PT_INTERP
))
1516 /* Install PT_IA_64_UNWIND segments, if needed. */
1517 for (s
= abfd
->sections
; s
; s
= s
->next
)
1519 hdr
= &elf_section_data (s
)->this_hdr
;
1520 if (hdr
->sh_type
!= SHT_IA_64_UNWIND
)
1523 if (s
&& (s
->flags
& SEC_LOAD
))
1525 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1526 if (m
->p_type
== PT_IA_64_UNWIND
)
1530 /* Look through all sections in the unwind segment
1531 for a match since there may be multiple sections
1533 for (i
= m
->count
- 1; i
>= 0; --i
)
1534 if (m
->sections
[i
] == s
)
1543 m
= ((struct elf_segment_map
*)
1544 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1548 m
->p_type
= PT_IA_64_UNWIND
;
1553 /* We want to put it last. */
1554 pm
= &elf_tdata (abfd
)->segment_map
;
1562 /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1563 the input sections for each output section in the segment and testing
1564 for SHF_IA_64_NORECOV on each. */
1565 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1566 if (m
->p_type
== PT_LOAD
)
1569 for (i
= m
->count
- 1; i
>= 0; --i
)
1571 struct bfd_link_order
*order
= m
->sections
[i
]->map_head
.link_order
;
1574 if (order
->type
== bfd_indirect_link_order
)
1576 asection
*is
= order
->u
.indirect
.section
;
1577 bfd_vma flags
= elf_section_data(is
)->this_hdr
.sh_flags
;
1578 if (flags
& SHF_IA_64_NORECOV
)
1580 m
->p_flags
|= PF_IA_64_NORECOV
;
1584 order
= order
->next
;
1593 /* According to the Tahoe assembler spec, all labels starting with a
1597 elfNN_ia64_is_local_label_name (abfd
, name
)
1598 bfd
*abfd ATTRIBUTE_UNUSED
;
1601 return name
[0] == '.';
1604 /* Should we do dynamic things to this symbol? */
1607 elfNN_ia64_dynamic_symbol_p (h
, info
, r_type
)
1608 struct elf_link_hash_entry
*h
;
1609 struct bfd_link_info
*info
;
1612 bfd_boolean ignore_protected
1613 = ((r_type
& 0xf8) == 0x40 /* FPTR relocs */
1614 || (r_type
& 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1616 return _bfd_elf_dynamic_symbol_p (h
, info
, ignore_protected
);
1619 static struct bfd_hash_entry
*
1620 elfNN_ia64_new_elf_hash_entry (entry
, table
, string
)
1621 struct bfd_hash_entry
*entry
;
1622 struct bfd_hash_table
*table
;
1625 struct elfNN_ia64_link_hash_entry
*ret
;
1626 ret
= (struct elfNN_ia64_link_hash_entry
*) entry
;
1628 /* Allocate the structure if it has not already been allocated by a
1631 ret
= bfd_hash_allocate (table
, sizeof (*ret
));
1636 /* Call the allocation method of the superclass. */
1637 ret
= ((struct elfNN_ia64_link_hash_entry
*)
1638 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
1642 return (struct bfd_hash_entry
*) ret
;
1646 elfNN_ia64_hash_copy_indirect (bed
, xdir
, xind
)
1647 const struct elf_backend_data
*bed ATTRIBUTE_UNUSED
;
1648 struct elf_link_hash_entry
*xdir
, *xind
;
1650 struct elfNN_ia64_link_hash_entry
*dir
, *ind
;
1652 dir
= (struct elfNN_ia64_link_hash_entry
*) xdir
;
1653 ind
= (struct elfNN_ia64_link_hash_entry
*) xind
;
1655 /* Copy down any references that we may have already seen to the
1656 symbol which just became indirect. */
1658 dir
->root
.ref_dynamic
|= ind
->root
.ref_dynamic
;
1659 dir
->root
.ref_regular
|= ind
->root
.ref_regular
;
1660 dir
->root
.ref_regular_nonweak
|= ind
->root
.ref_regular_nonweak
;
1661 dir
->root
.needs_plt
|= ind
->root
.needs_plt
;
1663 if (ind
->root
.root
.type
!= bfd_link_hash_indirect
)
1666 /* Copy over the got and plt data. This would have been done
1669 if (dir
->info
== NULL
)
1671 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1673 dir
->info
= dyn_i
= ind
->info
;
1676 /* Fix up the dyn_sym_info pointers to the global symbol. */
1677 for (; dyn_i
; dyn_i
= dyn_i
->next
)
1678 dyn_i
->h
= &dir
->root
;
1680 BFD_ASSERT (ind
->info
== NULL
);
1682 /* Copy over the dynindx. */
1684 if (dir
->root
.dynindx
== -1)
1686 dir
->root
.dynindx
= ind
->root
.dynindx
;
1687 dir
->root
.dynstr_index
= ind
->root
.dynstr_index
;
1688 ind
->root
.dynindx
= -1;
1689 ind
->root
.dynstr_index
= 0;
1691 BFD_ASSERT (ind
->root
.dynindx
== -1);
1695 elfNN_ia64_hash_hide_symbol (info
, xh
, force_local
)
1696 struct bfd_link_info
*info
;
1697 struct elf_link_hash_entry
*xh
;
1698 bfd_boolean force_local
;
1700 struct elfNN_ia64_link_hash_entry
*h
;
1701 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1703 h
= (struct elfNN_ia64_link_hash_entry
*)xh
;
1705 _bfd_elf_link_hash_hide_symbol (info
, &h
->root
, force_local
);
1707 for (dyn_i
= h
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1709 dyn_i
->want_plt2
= 0;
1710 dyn_i
->want_plt
= 0;
1714 /* Compute a hash of a local hash entry. */
1717 elfNN_ia64_local_htab_hash (ptr
)
1720 struct elfNN_ia64_local_hash_entry
*entry
1721 = (struct elfNN_ia64_local_hash_entry
*) ptr
;
1723 return (((entry
->id
& 0xff) << 24) | ((entry
->id
& 0xff00) << 8))
1724 ^ entry
->r_sym
^ (entry
->id
>> 16);
1727 /* Compare local hash entries. */
1730 elfNN_ia64_local_htab_eq (ptr1
, ptr2
)
1731 const void *ptr1
, *ptr2
;
1733 struct elfNN_ia64_local_hash_entry
*entry1
1734 = (struct elfNN_ia64_local_hash_entry
*) ptr1
;
1735 struct elfNN_ia64_local_hash_entry
*entry2
1736 = (struct elfNN_ia64_local_hash_entry
*) ptr2
;
1738 return entry1
->id
== entry2
->id
&& entry1
->r_sym
== entry2
->r_sym
;
1741 /* Create the derived linker hash table. The IA-64 ELF port uses this
1742 derived hash table to keep information specific to the IA-64 ElF
1743 linker (without using static variables). */
1745 static struct bfd_link_hash_table
*
1746 elfNN_ia64_hash_table_create (abfd
)
1749 struct elfNN_ia64_link_hash_table
*ret
;
1751 ret
= bfd_zmalloc ((bfd_size_type
) sizeof (*ret
));
1755 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
1756 elfNN_ia64_new_elf_hash_entry
))
1762 ret
->loc_hash_table
= htab_try_create (1024, elfNN_ia64_local_htab_hash
,
1763 elfNN_ia64_local_htab_eq
, NULL
);
1764 ret
->loc_hash_memory
= objalloc_create ();
1765 if (!ret
->loc_hash_table
|| !ret
->loc_hash_memory
)
1771 return &ret
->root
.root
;
1774 /* Destroy IA-64 linker hash table. */
1777 elfNN_ia64_hash_table_free (hash
)
1778 struct bfd_link_hash_table
*hash
;
1780 struct elfNN_ia64_link_hash_table
*ia64_info
1781 = (struct elfNN_ia64_link_hash_table
*) hash
;
1782 if (ia64_info
->loc_hash_table
)
1783 htab_delete (ia64_info
->loc_hash_table
);
1784 if (ia64_info
->loc_hash_memory
)
1785 objalloc_free ((struct objalloc
*) ia64_info
->loc_hash_memory
);
1786 _bfd_generic_link_hash_table_free (hash
);
1789 /* Traverse both local and global hash tables. */
1791 struct elfNN_ia64_dyn_sym_traverse_data
1793 bfd_boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1798 elfNN_ia64_global_dyn_sym_thunk (xentry
, xdata
)
1799 struct bfd_hash_entry
*xentry
;
1802 struct elfNN_ia64_link_hash_entry
*entry
1803 = (struct elfNN_ia64_link_hash_entry
*) xentry
;
1804 struct elfNN_ia64_dyn_sym_traverse_data
*data
1805 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1806 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1808 if (entry
->root
.root
.type
== bfd_link_hash_warning
)
1809 entry
= (struct elfNN_ia64_link_hash_entry
*) entry
->root
.root
.u
.i
.link
;
1811 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1812 if (! (*data
->func
) (dyn_i
, data
->data
))
1818 elfNN_ia64_local_dyn_sym_thunk (slot
, xdata
)
1822 struct elfNN_ia64_local_hash_entry
*entry
1823 = (struct elfNN_ia64_local_hash_entry
*) *slot
;
1824 struct elfNN_ia64_dyn_sym_traverse_data
*data
1825 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1826 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1828 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1829 if (! (*data
->func
) (dyn_i
, data
->data
))
1835 elfNN_ia64_dyn_sym_traverse (ia64_info
, func
, data
)
1836 struct elfNN_ia64_link_hash_table
*ia64_info
;
1837 bfd_boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1840 struct elfNN_ia64_dyn_sym_traverse_data xdata
;
1845 elf_link_hash_traverse (&ia64_info
->root
,
1846 elfNN_ia64_global_dyn_sym_thunk
, &xdata
);
1847 htab_traverse (ia64_info
->loc_hash_table
,
1848 elfNN_ia64_local_dyn_sym_thunk
, &xdata
);
1852 elfNN_ia64_create_dynamic_sections (abfd
, info
)
1854 struct bfd_link_info
*info
;
1856 struct elfNN_ia64_link_hash_table
*ia64_info
;
1859 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
1862 ia64_info
= elfNN_ia64_hash_table (info
);
1864 ia64_info
->plt_sec
= bfd_get_section_by_name (abfd
, ".plt");
1865 ia64_info
->got_sec
= bfd_get_section_by_name (abfd
, ".got");
1868 flagword flags
= bfd_get_section_flags (abfd
, ia64_info
->got_sec
);
1869 bfd_set_section_flags (abfd
, ia64_info
->got_sec
, SEC_SMALL_DATA
| flags
);
1870 /* The .got section is always aligned at 8 bytes. */
1871 bfd_set_section_alignment (abfd
, ia64_info
->got_sec
, 3);
1874 if (!get_pltoff (abfd
, info
, ia64_info
))
1877 s
= bfd_make_section_with_flags (abfd
, ".rela.IA_64.pltoff",
1878 (SEC_ALLOC
| SEC_LOAD
1881 | SEC_LINKER_CREATED
1884 || !bfd_set_section_alignment (abfd
, s
, LOG_SECTION_ALIGN
))
1886 ia64_info
->rel_pltoff_sec
= s
;
1888 s
= bfd_make_section_with_flags (abfd
, ".rela.got",
1889 (SEC_ALLOC
| SEC_LOAD
1892 | SEC_LINKER_CREATED
1895 || !bfd_set_section_alignment (abfd
, s
, LOG_SECTION_ALIGN
))
1897 ia64_info
->rel_got_sec
= s
;
1902 /* Find and/or create a hash entry for local symbol. */
1903 static struct elfNN_ia64_local_hash_entry
*
1904 get_local_sym_hash (ia64_info
, abfd
, rel
, create
)
1905 struct elfNN_ia64_link_hash_table
*ia64_info
;
1907 const Elf_Internal_Rela
*rel
;
1910 struct elfNN_ia64_local_hash_entry e
, *ret
;
1911 asection
*sec
= abfd
->sections
;
1912 hashval_t h
= (((sec
->id
& 0xff) << 24) | ((sec
->id
& 0xff00) << 8))
1913 ^ ELFNN_R_SYM (rel
->r_info
) ^ (sec
->id
>> 16);
1917 e
.r_sym
= ELFNN_R_SYM (rel
->r_info
);
1918 slot
= htab_find_slot_with_hash (ia64_info
->loc_hash_table
, &e
, h
,
1919 create
? INSERT
: NO_INSERT
);
1925 return (struct elfNN_ia64_local_hash_entry
*) *slot
;
1927 ret
= (struct elfNN_ia64_local_hash_entry
*)
1928 objalloc_alloc ((struct objalloc
*) ia64_info
->loc_hash_memory
,
1929 sizeof (struct elfNN_ia64_local_hash_entry
));
1932 memset (ret
, 0, sizeof (*ret
));
1934 ret
->r_sym
= ELFNN_R_SYM (rel
->r_info
);
1940 /* Find and/or create a descriptor for dynamic symbol info. This will
1941 vary based on global or local symbol, and the addend to the reloc. */
1943 static struct elfNN_ia64_dyn_sym_info
*
1944 get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, create
)
1945 struct elfNN_ia64_link_hash_table
*ia64_info
;
1946 struct elf_link_hash_entry
*h
;
1948 const Elf_Internal_Rela
*rel
;
1951 struct elfNN_ia64_dyn_sym_info
**pp
;
1952 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1953 bfd_vma addend
= rel
? rel
->r_addend
: 0;
1956 pp
= &((struct elfNN_ia64_link_hash_entry
*)h
)->info
;
1959 struct elfNN_ia64_local_hash_entry
*loc_h
;
1961 loc_h
= get_local_sym_hash (ia64_info
, abfd
, rel
, create
);
1964 BFD_ASSERT (!create
);
1971 for (dyn_i
= *pp
; dyn_i
&& dyn_i
->addend
!= addend
; dyn_i
= *pp
)
1974 if (dyn_i
== NULL
&& create
)
1976 dyn_i
= ((struct elfNN_ia64_dyn_sym_info
*)
1977 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *dyn_i
));
1979 dyn_i
->addend
= addend
;
1986 get_got (abfd
, info
, ia64_info
)
1988 struct bfd_link_info
*info
;
1989 struct elfNN_ia64_link_hash_table
*ia64_info
;
1994 got
= ia64_info
->got_sec
;
1999 dynobj
= ia64_info
->root
.dynobj
;
2001 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2002 if (!_bfd_elf_create_got_section (dynobj
, info
))
2005 got
= bfd_get_section_by_name (dynobj
, ".got");
2007 ia64_info
->got_sec
= got
;
2009 /* The .got section is always aligned at 8 bytes. */
2010 if (!bfd_set_section_alignment (abfd
, got
, 3))
2013 flags
= bfd_get_section_flags (abfd
, got
);
2014 bfd_set_section_flags (abfd
, got
, SEC_SMALL_DATA
| flags
);
2020 /* Create function descriptor section (.opd). This section is called .opd
2021 because it contains "official procedure descriptors". The "official"
2022 refers to the fact that these descriptors are used when taking the address
2023 of a procedure, thus ensuring a unique address for each procedure. */
2026 get_fptr (abfd
, info
, ia64_info
)
2028 struct bfd_link_info
*info
;
2029 struct elfNN_ia64_link_hash_table
*ia64_info
;
2034 fptr
= ia64_info
->fptr_sec
;
2037 dynobj
= ia64_info
->root
.dynobj
;
2039 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2041 fptr
= bfd_make_section_with_flags (dynobj
, ".opd",
2046 | (info
->pie
? 0 : SEC_READONLY
)
2047 | SEC_LINKER_CREATED
));
2049 || !bfd_set_section_alignment (abfd
, fptr
, 4))
2055 ia64_info
->fptr_sec
= fptr
;
2060 fptr_rel
= bfd_make_section_with_flags (dynobj
, ".rela.opd",
2061 (SEC_ALLOC
| SEC_LOAD
2064 | SEC_LINKER_CREATED
2066 if (fptr_rel
== NULL
2067 || !bfd_set_section_alignment (abfd
, fptr_rel
,
2074 ia64_info
->rel_fptr_sec
= fptr_rel
;
2082 get_pltoff (abfd
, info
, ia64_info
)
2084 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
2085 struct elfNN_ia64_link_hash_table
*ia64_info
;
2090 pltoff
= ia64_info
->pltoff_sec
;
2093 dynobj
= ia64_info
->root
.dynobj
;
2095 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2097 pltoff
= bfd_make_section_with_flags (dynobj
,
2098 ELF_STRING_ia64_pltoff
,
2104 | SEC_LINKER_CREATED
));
2106 || !bfd_set_section_alignment (abfd
, pltoff
, 4))
2112 ia64_info
->pltoff_sec
= pltoff
;
2119 get_reloc_section (abfd
, ia64_info
, sec
, create
)
2121 struct elfNN_ia64_link_hash_table
*ia64_info
;
2125 const char *srel_name
;
2129 srel_name
= (bfd_elf_string_from_elf_section
2130 (abfd
, elf_elfheader(abfd
)->e_shstrndx
,
2131 elf_section_data(sec
)->rel_hdr
.sh_name
));
2132 if (srel_name
== NULL
)
2135 BFD_ASSERT ((strncmp (srel_name
, ".rela", 5) == 0
2136 && strcmp (bfd_get_section_name (abfd
, sec
),
2138 || (strncmp (srel_name
, ".rel", 4) == 0
2139 && strcmp (bfd_get_section_name (abfd
, sec
),
2140 srel_name
+4) == 0));
2142 dynobj
= ia64_info
->root
.dynobj
;
2144 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2146 srel
= bfd_get_section_by_name (dynobj
, srel_name
);
2147 if (srel
== NULL
&& create
)
2149 srel
= bfd_make_section_with_flags (dynobj
, srel_name
,
2150 (SEC_ALLOC
| SEC_LOAD
2153 | SEC_LINKER_CREATED
2156 || !bfd_set_section_alignment (dynobj
, srel
,
2165 count_dyn_reloc (bfd
*abfd
, struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2166 asection
*srel
, int type
, bfd_boolean reltext
)
2168 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2170 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2171 if (rent
->srel
== srel
&& rent
->type
== type
)
2176 rent
= ((struct elfNN_ia64_dyn_reloc_entry
*)
2177 bfd_alloc (abfd
, (bfd_size_type
) sizeof (*rent
)));
2181 rent
->next
= dyn_i
->reloc_entries
;
2185 dyn_i
->reloc_entries
= rent
;
2187 rent
->reltext
= reltext
;
2194 elfNN_ia64_check_relocs (abfd
, info
, sec
, relocs
)
2196 struct bfd_link_info
*info
;
2198 const Elf_Internal_Rela
*relocs
;
2200 struct elfNN_ia64_link_hash_table
*ia64_info
;
2201 const Elf_Internal_Rela
*relend
;
2202 Elf_Internal_Shdr
*symtab_hdr
;
2203 const Elf_Internal_Rela
*rel
;
2204 asection
*got
, *fptr
, *srel
, *pltoff
;
2206 if (info
->relocatable
)
2209 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
2210 ia64_info
= elfNN_ia64_hash_table (info
);
2212 got
= fptr
= srel
= pltoff
= NULL
;
2214 relend
= relocs
+ sec
->reloc_count
;
2215 for (rel
= relocs
; rel
< relend
; ++rel
)
2225 NEED_LTOFF_FPTR
= 128,
2231 struct elf_link_hash_entry
*h
= NULL
;
2232 unsigned long r_symndx
= ELFNN_R_SYM (rel
->r_info
);
2233 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2235 bfd_boolean maybe_dynamic
;
2236 int dynrel_type
= R_IA64_NONE
;
2238 if (r_symndx
>= symtab_hdr
->sh_info
)
2240 /* We're dealing with a global symbol -- find its hash entry
2241 and mark it as being referenced. */
2242 long indx
= r_symndx
- symtab_hdr
->sh_info
;
2243 h
= elf_sym_hashes (abfd
)[indx
];
2244 while (h
->root
.type
== bfd_link_hash_indirect
2245 || h
->root
.type
== bfd_link_hash_warning
)
2246 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2251 /* We can only get preliminary data on whether a symbol is
2252 locally or externally defined, as not all of the input files
2253 have yet been processed. Do something with what we know, as
2254 this may help reduce memory usage and processing time later. */
2255 maybe_dynamic
= FALSE
;
2256 if (h
&& ((!info
->executable
2258 || info
->unresolved_syms_in_shared_libs
== RM_IGNORE
))
2260 || h
->root
.type
== bfd_link_hash_defweak
))
2261 maybe_dynamic
= TRUE
;
2264 switch (ELFNN_R_TYPE (rel
->r_info
))
2266 case R_IA64_TPREL64MSB
:
2267 case R_IA64_TPREL64LSB
:
2268 if (info
->shared
|| maybe_dynamic
)
2269 need_entry
= NEED_DYNREL
;
2270 dynrel_type
= R_IA64_TPREL64LSB
;
2272 info
->flags
|= DF_STATIC_TLS
;
2275 case R_IA64_LTOFF_TPREL22
:
2276 need_entry
= NEED_TPREL
;
2278 info
->flags
|= DF_STATIC_TLS
;
2281 case R_IA64_DTPREL32MSB
:
2282 case R_IA64_DTPREL32LSB
:
2283 case R_IA64_DTPREL64MSB
:
2284 case R_IA64_DTPREL64LSB
:
2285 if (info
->shared
|| maybe_dynamic
)
2286 need_entry
= NEED_DYNREL
;
2287 dynrel_type
= R_IA64_DTPRELNNLSB
;
2290 case R_IA64_LTOFF_DTPREL22
:
2291 need_entry
= NEED_DTPREL
;
2294 case R_IA64_DTPMOD64MSB
:
2295 case R_IA64_DTPMOD64LSB
:
2296 if (info
->shared
|| maybe_dynamic
)
2297 need_entry
= NEED_DYNREL
;
2298 dynrel_type
= R_IA64_DTPMOD64LSB
;
2301 case R_IA64_LTOFF_DTPMOD22
:
2302 need_entry
= NEED_DTPMOD
;
2305 case R_IA64_LTOFF_FPTR22
:
2306 case R_IA64_LTOFF_FPTR64I
:
2307 case R_IA64_LTOFF_FPTR32MSB
:
2308 case R_IA64_LTOFF_FPTR32LSB
:
2309 case R_IA64_LTOFF_FPTR64MSB
:
2310 case R_IA64_LTOFF_FPTR64LSB
:
2311 need_entry
= NEED_FPTR
| NEED_GOT
| NEED_LTOFF_FPTR
;
2314 case R_IA64_FPTR64I
:
2315 case R_IA64_FPTR32MSB
:
2316 case R_IA64_FPTR32LSB
:
2317 case R_IA64_FPTR64MSB
:
2318 case R_IA64_FPTR64LSB
:
2319 if (info
->shared
|| h
)
2320 need_entry
= NEED_FPTR
| NEED_DYNREL
;
2322 need_entry
= NEED_FPTR
;
2323 dynrel_type
= R_IA64_FPTRNNLSB
;
2326 case R_IA64_LTOFF22
:
2327 case R_IA64_LTOFF64I
:
2328 need_entry
= NEED_GOT
;
2331 case R_IA64_LTOFF22X
:
2332 need_entry
= NEED_GOTX
;
2335 case R_IA64_PLTOFF22
:
2336 case R_IA64_PLTOFF64I
:
2337 case R_IA64_PLTOFF64MSB
:
2338 case R_IA64_PLTOFF64LSB
:
2339 need_entry
= NEED_PLTOFF
;
2343 need_entry
|= NEED_MIN_PLT
;
2347 (*info
->callbacks
->warning
)
2348 (info
, _("@pltoff reloc against local symbol"), 0,
2349 abfd
, 0, (bfd_vma
) 0);
2353 case R_IA64_PCREL21B
:
2354 case R_IA64_PCREL60B
:
2355 /* Depending on where this symbol is defined, we may or may not
2356 need a full plt entry. Only skip if we know we'll not need
2357 the entry -- static or symbolic, and the symbol definition
2358 has already been seen. */
2359 if (maybe_dynamic
&& rel
->r_addend
== 0)
2360 need_entry
= NEED_FULL_PLT
;
2366 case R_IA64_DIR32MSB
:
2367 case R_IA64_DIR32LSB
:
2368 case R_IA64_DIR64MSB
:
2369 case R_IA64_DIR64LSB
:
2370 /* Shared objects will always need at least a REL relocation. */
2371 if (info
->shared
|| maybe_dynamic
)
2372 need_entry
= NEED_DYNREL
;
2373 dynrel_type
= R_IA64_DIRNNLSB
;
2376 case R_IA64_IPLTMSB
:
2377 case R_IA64_IPLTLSB
:
2378 /* Shared objects will always need at least a REL relocation. */
2379 if (info
->shared
|| maybe_dynamic
)
2380 need_entry
= NEED_DYNREL
;
2381 dynrel_type
= R_IA64_IPLTLSB
;
2384 case R_IA64_PCREL22
:
2385 case R_IA64_PCREL64I
:
2386 case R_IA64_PCREL32MSB
:
2387 case R_IA64_PCREL32LSB
:
2388 case R_IA64_PCREL64MSB
:
2389 case R_IA64_PCREL64LSB
:
2391 need_entry
= NEED_DYNREL
;
2392 dynrel_type
= R_IA64_PCRELNNLSB
;
2399 if ((need_entry
& NEED_FPTR
) != 0
2402 (*info
->callbacks
->warning
)
2403 (info
, _("non-zero addend in @fptr reloc"), 0,
2404 abfd
, 0, (bfd_vma
) 0);
2407 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, TRUE
);
2409 /* Record whether or not this is a local symbol. */
2412 /* Create what's needed. */
2413 if (need_entry
& (NEED_GOT
| NEED_GOTX
| NEED_TPREL
2414 | NEED_DTPMOD
| NEED_DTPREL
))
2418 got
= get_got (abfd
, info
, ia64_info
);
2422 if (need_entry
& NEED_GOT
)
2423 dyn_i
->want_got
= 1;
2424 if (need_entry
& NEED_GOTX
)
2425 dyn_i
->want_gotx
= 1;
2426 if (need_entry
& NEED_TPREL
)
2427 dyn_i
->want_tprel
= 1;
2428 if (need_entry
& NEED_DTPMOD
)
2429 dyn_i
->want_dtpmod
= 1;
2430 if (need_entry
& NEED_DTPREL
)
2431 dyn_i
->want_dtprel
= 1;
2433 if (need_entry
& NEED_FPTR
)
2437 fptr
= get_fptr (abfd
, info
, ia64_info
);
2442 /* FPTRs for shared libraries are allocated by the dynamic
2443 linker. Make sure this local symbol will appear in the
2444 dynamic symbol table. */
2445 if (!h
&& info
->shared
)
2447 if (! (bfd_elf_link_record_local_dynamic_symbol
2448 (info
, abfd
, (long) r_symndx
)))
2452 dyn_i
->want_fptr
= 1;
2454 if (need_entry
& NEED_LTOFF_FPTR
)
2455 dyn_i
->want_ltoff_fptr
= 1;
2456 if (need_entry
& (NEED_MIN_PLT
| NEED_FULL_PLT
))
2458 if (!ia64_info
->root
.dynobj
)
2459 ia64_info
->root
.dynobj
= abfd
;
2461 dyn_i
->want_plt
= 1;
2463 if (need_entry
& NEED_FULL_PLT
)
2464 dyn_i
->want_plt2
= 1;
2465 if (need_entry
& NEED_PLTOFF
)
2467 /* This is needed here, in case @pltoff is used in a non-shared
2471 pltoff
= get_pltoff (abfd
, info
, ia64_info
);
2476 dyn_i
->want_pltoff
= 1;
2478 if ((need_entry
& NEED_DYNREL
) && (sec
->flags
& SEC_ALLOC
))
2482 srel
= get_reloc_section (abfd
, ia64_info
, sec
, TRUE
);
2486 if (!count_dyn_reloc (abfd
, dyn_i
, srel
, dynrel_type
,
2487 (sec
->flags
& SEC_READONLY
) != 0))
2495 /* For cleanliness, and potentially faster dynamic loading, allocate
2496 external GOT entries first. */
2499 allocate_global_data_got (dyn_i
, data
)
2500 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2503 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2505 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2506 && ! dyn_i
->want_fptr
2507 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2509 dyn_i
->got_offset
= x
->ofs
;
2512 if (dyn_i
->want_tprel
)
2514 dyn_i
->tprel_offset
= x
->ofs
;
2517 if (dyn_i
->want_dtpmod
)
2519 if (elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2521 dyn_i
->dtpmod_offset
= x
->ofs
;
2526 struct elfNN_ia64_link_hash_table
*ia64_info
;
2528 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2529 if (ia64_info
->self_dtpmod_offset
== (bfd_vma
) -1)
2531 ia64_info
->self_dtpmod_offset
= x
->ofs
;
2534 dyn_i
->dtpmod_offset
= ia64_info
->self_dtpmod_offset
;
2537 if (dyn_i
->want_dtprel
)
2539 dyn_i
->dtprel_offset
= x
->ofs
;
2545 /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2548 allocate_global_fptr_got (dyn_i
, data
)
2549 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2552 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2556 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, R_IA64_FPTRNNLSB
))
2558 dyn_i
->got_offset
= x
->ofs
;
2564 /* Lastly, allocate all the GOT entries for local data. */
2567 allocate_local_got (dyn_i
, data
)
2568 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2571 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2573 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2574 && !elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2576 dyn_i
->got_offset
= x
->ofs
;
2582 /* Search for the index of a global symbol in it's defining object file. */
2585 global_sym_index (h
)
2586 struct elf_link_hash_entry
*h
;
2588 struct elf_link_hash_entry
**p
;
2591 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
2592 || h
->root
.type
== bfd_link_hash_defweak
);
2594 obj
= h
->root
.u
.def
.section
->owner
;
2595 for (p
= elf_sym_hashes (obj
); *p
!= h
; ++p
)
2598 return p
- elf_sym_hashes (obj
) + elf_tdata (obj
)->symtab_hdr
.sh_info
;
2601 /* Allocate function descriptors. We can do these for every function
2602 in a main executable that is not exported. */
2605 allocate_fptr (dyn_i
, data
)
2606 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2609 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2611 if (dyn_i
->want_fptr
)
2613 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2616 while (h
->root
.type
== bfd_link_hash_indirect
2617 || h
->root
.type
== bfd_link_hash_warning
)
2618 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2620 if (!x
->info
->executable
2622 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2623 || h
->root
.type
!= bfd_link_hash_undefweak
))
2625 if (h
&& h
->dynindx
== -1)
2627 BFD_ASSERT ((h
->root
.type
== bfd_link_hash_defined
)
2628 || (h
->root
.type
== bfd_link_hash_defweak
));
2630 if (!bfd_elf_link_record_local_dynamic_symbol
2631 (x
->info
, h
->root
.u
.def
.section
->owner
,
2632 global_sym_index (h
)))
2636 dyn_i
->want_fptr
= 0;
2638 else if (h
== NULL
|| h
->dynindx
== -1)
2640 dyn_i
->fptr_offset
= x
->ofs
;
2644 dyn_i
->want_fptr
= 0;
2649 /* Allocate all the minimal PLT entries. */
2652 allocate_plt_entries (dyn_i
, data
)
2653 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2656 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2658 if (dyn_i
->want_plt
)
2660 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2663 while (h
->root
.type
== bfd_link_hash_indirect
2664 || h
->root
.type
== bfd_link_hash_warning
)
2665 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2667 /* ??? Versioned symbols seem to lose NEEDS_PLT. */
2668 if (elfNN_ia64_dynamic_symbol_p (h
, x
->info
, 0))
2670 bfd_size_type offset
= x
->ofs
;
2672 offset
= PLT_HEADER_SIZE
;
2673 dyn_i
->plt_offset
= offset
;
2674 x
->ofs
= offset
+ PLT_MIN_ENTRY_SIZE
;
2676 dyn_i
->want_pltoff
= 1;
2680 dyn_i
->want_plt
= 0;
2681 dyn_i
->want_plt2
= 0;
2687 /* Allocate all the full PLT entries. */
2690 allocate_plt2_entries (dyn_i
, data
)
2691 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2694 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2696 if (dyn_i
->want_plt2
)
2698 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2699 bfd_size_type ofs
= x
->ofs
;
2701 dyn_i
->plt2_offset
= ofs
;
2702 x
->ofs
= ofs
+ PLT_FULL_ENTRY_SIZE
;
2704 while (h
->root
.type
== bfd_link_hash_indirect
2705 || h
->root
.type
== bfd_link_hash_warning
)
2706 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2707 dyn_i
->h
->plt
.offset
= ofs
;
2712 /* Allocate all the PLTOFF entries requested by relocations and
2713 plt entries. We can't share space with allocated FPTR entries,
2714 because the latter are not necessarily addressable by the GP.
2715 ??? Relaxation might be able to determine that they are. */
2718 allocate_pltoff_entries (dyn_i
, data
)
2719 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2722 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2724 if (dyn_i
->want_pltoff
)
2726 dyn_i
->pltoff_offset
= x
->ofs
;
2732 /* Allocate dynamic relocations for those symbols that turned out
2736 allocate_dynrel_entries (dyn_i
, data
)
2737 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2740 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2741 struct elfNN_ia64_link_hash_table
*ia64_info
;
2742 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2743 bfd_boolean dynamic_symbol
, shared
, resolved_zero
;
2745 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2747 /* Note that this can't be used in relation to FPTR relocs below. */
2748 dynamic_symbol
= elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0);
2750 shared
= x
->info
->shared
;
2751 resolved_zero
= (dyn_i
->h
2752 && ELF_ST_VISIBILITY (dyn_i
->h
->other
)
2753 && dyn_i
->h
->root
.type
== bfd_link_hash_undefweak
);
2755 /* Take care of the normal data relocations. */
2757 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2759 int count
= rent
->count
;
2763 case R_IA64_FPTR32LSB
:
2764 case R_IA64_FPTR64LSB
:
2765 /* Allocate one iff !want_fptr and not PIE, which by this point
2766 will be true only if we're actually allocating one statically
2767 in the main executable. Position independent executables
2768 need a relative reloc. */
2769 if (dyn_i
->want_fptr
&& !x
->info
->pie
)
2772 case R_IA64_PCREL32LSB
:
2773 case R_IA64_PCREL64LSB
:
2774 if (!dynamic_symbol
)
2777 case R_IA64_DIR32LSB
:
2778 case R_IA64_DIR64LSB
:
2779 if (!dynamic_symbol
&& !shared
)
2782 case R_IA64_IPLTLSB
:
2783 if (!dynamic_symbol
&& !shared
)
2785 /* Use two REL relocations for IPLT relocations
2786 against local symbols. */
2787 if (!dynamic_symbol
)
2790 case R_IA64_DTPREL32LSB
:
2791 case R_IA64_TPREL64LSB
:
2792 case R_IA64_DTPREL64LSB
:
2793 case R_IA64_DTPMOD64LSB
:
2799 ia64_info
->reltext
= 1;
2800 rent
->srel
->size
+= sizeof (ElfNN_External_Rela
) * count
;
2803 /* Take care of the GOT and PLT relocations. */
2806 && (dynamic_symbol
|| shared
)
2807 && (dyn_i
->want_got
|| dyn_i
->want_gotx
))
2808 || (dyn_i
->want_ltoff_fptr
2810 && dyn_i
->h
->dynindx
!= -1))
2812 if (!dyn_i
->want_ltoff_fptr
2815 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2816 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2818 if ((dynamic_symbol
|| shared
) && dyn_i
->want_tprel
)
2819 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2820 if (dynamic_symbol
&& dyn_i
->want_dtpmod
)
2821 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2822 if (dynamic_symbol
&& dyn_i
->want_dtprel
)
2823 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2824 if (ia64_info
->rel_fptr_sec
&& dyn_i
->want_fptr
)
2826 if (dyn_i
->h
== NULL
|| dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2827 ia64_info
->rel_fptr_sec
->size
+= sizeof (ElfNN_External_Rela
);
2830 if (!resolved_zero
&& dyn_i
->want_pltoff
)
2832 bfd_size_type t
= 0;
2834 /* Dynamic symbols get one IPLT relocation. Local symbols in
2835 shared libraries get two REL relocations. Local symbols in
2836 main applications get nothing. */
2838 t
= sizeof (ElfNN_External_Rela
);
2840 t
= 2 * sizeof (ElfNN_External_Rela
);
2842 ia64_info
->rel_pltoff_sec
->size
+= t
;
2849 elfNN_ia64_adjust_dynamic_symbol (info
, h
)
2850 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
2851 struct elf_link_hash_entry
*h
;
2853 /* ??? Undefined symbols with PLT entries should be re-defined
2854 to be the PLT entry. */
2856 /* If this is a weak symbol, and there is a real definition, the
2857 processor independent code will have arranged for us to see the
2858 real definition first, and we can just use the same value. */
2859 if (h
->u
.weakdef
!= NULL
)
2861 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
2862 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
2863 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
2864 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
2868 /* If this is a reference to a symbol defined by a dynamic object which
2869 is not a function, we might allocate the symbol in our .dynbss section
2870 and allocate a COPY dynamic relocation.
2872 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
2879 elfNN_ia64_size_dynamic_sections (output_bfd
, info
)
2880 bfd
*output_bfd ATTRIBUTE_UNUSED
;
2881 struct bfd_link_info
*info
;
2883 struct elfNN_ia64_allocate_data data
;
2884 struct elfNN_ia64_link_hash_table
*ia64_info
;
2887 bfd_boolean relplt
= FALSE
;
2889 dynobj
= elf_hash_table(info
)->dynobj
;
2890 ia64_info
= elfNN_ia64_hash_table (info
);
2891 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
2892 BFD_ASSERT(dynobj
!= NULL
);
2895 /* Set the contents of the .interp section to the interpreter. */
2896 if (ia64_info
->root
.dynamic_sections_created
2897 && info
->executable
)
2899 sec
= bfd_get_section_by_name (dynobj
, ".interp");
2900 BFD_ASSERT (sec
!= NULL
);
2901 sec
->contents
= (bfd_byte
*) ELF_DYNAMIC_INTERPRETER
;
2902 sec
->size
= strlen (ELF_DYNAMIC_INTERPRETER
) + 1;
2905 /* Allocate the GOT entries. */
2907 if (ia64_info
->got_sec
)
2910 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
2911 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
2912 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
2913 ia64_info
->got_sec
->size
= data
.ofs
;
2916 /* Allocate the FPTR entries. */
2918 if (ia64_info
->fptr_sec
)
2921 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_fptr
, &data
);
2922 ia64_info
->fptr_sec
->size
= data
.ofs
;
2925 /* Now that we've seen all of the input files, we can decide which
2926 symbols need plt entries. Allocate the minimal PLT entries first.
2927 We do this even though dynamic_sections_created may be FALSE, because
2928 this has the side-effect of clearing want_plt and want_plt2. */
2931 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt_entries
, &data
);
2933 ia64_info
->minplt_entries
= 0;
2936 ia64_info
->minplt_entries
2937 = (data
.ofs
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
2940 /* Align the pointer for the plt2 entries. */
2941 data
.ofs
= (data
.ofs
+ 31) & (bfd_vma
) -32;
2943 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt2_entries
, &data
);
2944 if (data
.ofs
!= 0 || ia64_info
->root
.dynamic_sections_created
)
2946 /* FIXME: we always reserve the memory for dynamic linker even if
2947 there are no PLT entries since dynamic linker may assume the
2948 reserved memory always exists. */
2950 BFD_ASSERT (ia64_info
->root
.dynamic_sections_created
);
2952 ia64_info
->plt_sec
->size
= data
.ofs
;
2954 /* If we've got a .plt, we need some extra memory for the dynamic
2955 linker. We stuff these in .got.plt. */
2956 sec
= bfd_get_section_by_name (dynobj
, ".got.plt");
2957 sec
->size
= 8 * PLT_RESERVED_WORDS
;
2960 /* Allocate the PLTOFF entries. */
2962 if (ia64_info
->pltoff_sec
)
2965 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_pltoff_entries
, &data
);
2966 ia64_info
->pltoff_sec
->size
= data
.ofs
;
2969 if (ia64_info
->root
.dynamic_sections_created
)
2971 /* Allocate space for the dynamic relocations that turned out to be
2974 if (info
->shared
&& ia64_info
->self_dtpmod_offset
!= (bfd_vma
) -1)
2975 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2976 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_dynrel_entries
, &data
);
2979 /* We have now determined the sizes of the various dynamic sections.
2980 Allocate memory for them. */
2981 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
2985 if (!(sec
->flags
& SEC_LINKER_CREATED
))
2988 /* If we don't need this section, strip it from the output file.
2989 There were several sections primarily related to dynamic
2990 linking that must be create before the linker maps input
2991 sections to output sections. The linker does that before
2992 bfd_elf_size_dynamic_sections is called, and it is that
2993 function which decides whether anything needs to go into
2996 strip
= (sec
->size
== 0);
2998 if (sec
== ia64_info
->got_sec
)
3000 else if (sec
== ia64_info
->rel_got_sec
)
3003 ia64_info
->rel_got_sec
= NULL
;
3005 /* We use the reloc_count field as a counter if we need to
3006 copy relocs into the output file. */
3007 sec
->reloc_count
= 0;
3009 else if (sec
== ia64_info
->fptr_sec
)
3012 ia64_info
->fptr_sec
= NULL
;
3014 else if (sec
== ia64_info
->rel_fptr_sec
)
3017 ia64_info
->rel_fptr_sec
= NULL
;
3019 /* We use the reloc_count field as a counter if we need to
3020 copy relocs into the output file. */
3021 sec
->reloc_count
= 0;
3023 else if (sec
== ia64_info
->plt_sec
)
3026 ia64_info
->plt_sec
= NULL
;
3028 else if (sec
== ia64_info
->pltoff_sec
)
3031 ia64_info
->pltoff_sec
= NULL
;
3033 else if (sec
== ia64_info
->rel_pltoff_sec
)
3036 ia64_info
->rel_pltoff_sec
= NULL
;
3040 /* We use the reloc_count field as a counter if we need to
3041 copy relocs into the output file. */
3042 sec
->reloc_count
= 0;
3049 /* It's OK to base decisions on the section name, because none
3050 of the dynobj section names depend upon the input files. */
3051 name
= bfd_get_section_name (dynobj
, sec
);
3053 if (strcmp (name
, ".got.plt") == 0)
3055 else if (strncmp (name
, ".rel", 4) == 0)
3059 /* We use the reloc_count field as a counter if we need to
3060 copy relocs into the output file. */
3061 sec
->reloc_count
= 0;
3069 sec
->flags
|= SEC_EXCLUDE
;
3072 /* Allocate memory for the section contents. */
3073 sec
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, sec
->size
);
3074 if (sec
->contents
== NULL
&& sec
->size
!= 0)
3079 if (elf_hash_table (info
)->dynamic_sections_created
)
3081 /* Add some entries to the .dynamic section. We fill in the values
3082 later (in finish_dynamic_sections) but we must add the entries now
3083 so that we get the correct size for the .dynamic section. */
3085 if (info
->executable
)
3087 /* The DT_DEBUG entry is filled in by the dynamic linker and used
3089 #define add_dynamic_entry(TAG, VAL) \
3090 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3092 if (!add_dynamic_entry (DT_DEBUG
, 0))
3096 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE
, 0))
3098 if (!add_dynamic_entry (DT_PLTGOT
, 0))
3103 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
3104 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3105 || !add_dynamic_entry (DT_JMPREL
, 0))
3109 if (!add_dynamic_entry (DT_RELA
, 0)
3110 || !add_dynamic_entry (DT_RELASZ
, 0)
3111 || !add_dynamic_entry (DT_RELAENT
, sizeof (ElfNN_External_Rela
)))
3114 if (ia64_info
->reltext
)
3116 if (!add_dynamic_entry (DT_TEXTREL
, 0))
3118 info
->flags
|= DF_TEXTREL
;
3122 /* ??? Perhaps force __gp local. */
3127 static bfd_reloc_status_type
3128 elfNN_ia64_install_value (hit_addr
, v
, r_type
)
3131 unsigned int r_type
;
3133 const struct ia64_operand
*op
;
3134 int bigendian
= 0, shift
= 0;
3135 bfd_vma t0
, t1
, dword
;
3137 enum ia64_opnd opnd
;
3140 #ifdef BFD_HOST_U_64_BIT
3141 BFD_HOST_U_64_BIT val
= (BFD_HOST_U_64_BIT
) v
;
3146 opnd
= IA64_OPND_NIL
;
3151 return bfd_reloc_ok
;
3153 /* Instruction relocations. */
3156 case R_IA64_TPREL14
:
3157 case R_IA64_DTPREL14
:
3158 opnd
= IA64_OPND_IMM14
;
3161 case R_IA64_PCREL21F
: opnd
= IA64_OPND_TGT25
; break;
3162 case R_IA64_PCREL21M
: opnd
= IA64_OPND_TGT25b
; break;
3163 case R_IA64_PCREL60B
: opnd
= IA64_OPND_TGT64
; break;
3164 case R_IA64_PCREL21B
:
3165 case R_IA64_PCREL21BI
:
3166 opnd
= IA64_OPND_TGT25c
;
3170 case R_IA64_GPREL22
:
3171 case R_IA64_LTOFF22
:
3172 case R_IA64_LTOFF22X
:
3173 case R_IA64_PLTOFF22
:
3174 case R_IA64_PCREL22
:
3175 case R_IA64_LTOFF_FPTR22
:
3176 case R_IA64_TPREL22
:
3177 case R_IA64_DTPREL22
:
3178 case R_IA64_LTOFF_TPREL22
:
3179 case R_IA64_LTOFF_DTPMOD22
:
3180 case R_IA64_LTOFF_DTPREL22
:
3181 opnd
= IA64_OPND_IMM22
;
3185 case R_IA64_GPREL64I
:
3186 case R_IA64_LTOFF64I
:
3187 case R_IA64_PLTOFF64I
:
3188 case R_IA64_PCREL64I
:
3189 case R_IA64_FPTR64I
:
3190 case R_IA64_LTOFF_FPTR64I
:
3191 case R_IA64_TPREL64I
:
3192 case R_IA64_DTPREL64I
:
3193 opnd
= IA64_OPND_IMMU64
;
3196 /* Data relocations. */
3198 case R_IA64_DIR32MSB
:
3199 case R_IA64_GPREL32MSB
:
3200 case R_IA64_FPTR32MSB
:
3201 case R_IA64_PCREL32MSB
:
3202 case R_IA64_LTOFF_FPTR32MSB
:
3203 case R_IA64_SEGREL32MSB
:
3204 case R_IA64_SECREL32MSB
:
3205 case R_IA64_LTV32MSB
:
3206 case R_IA64_DTPREL32MSB
:
3207 size
= 4; bigendian
= 1;
3210 case R_IA64_DIR32LSB
:
3211 case R_IA64_GPREL32LSB
:
3212 case R_IA64_FPTR32LSB
:
3213 case R_IA64_PCREL32LSB
:
3214 case R_IA64_LTOFF_FPTR32LSB
:
3215 case R_IA64_SEGREL32LSB
:
3216 case R_IA64_SECREL32LSB
:
3217 case R_IA64_LTV32LSB
:
3218 case R_IA64_DTPREL32LSB
:
3219 size
= 4; bigendian
= 0;
3222 case R_IA64_DIR64MSB
:
3223 case R_IA64_GPREL64MSB
:
3224 case R_IA64_PLTOFF64MSB
:
3225 case R_IA64_FPTR64MSB
:
3226 case R_IA64_PCREL64MSB
:
3227 case R_IA64_LTOFF_FPTR64MSB
:
3228 case R_IA64_SEGREL64MSB
:
3229 case R_IA64_SECREL64MSB
:
3230 case R_IA64_LTV64MSB
:
3231 case R_IA64_TPREL64MSB
:
3232 case R_IA64_DTPMOD64MSB
:
3233 case R_IA64_DTPREL64MSB
:
3234 size
= 8; bigendian
= 1;
3237 case R_IA64_DIR64LSB
:
3238 case R_IA64_GPREL64LSB
:
3239 case R_IA64_PLTOFF64LSB
:
3240 case R_IA64_FPTR64LSB
:
3241 case R_IA64_PCREL64LSB
:
3242 case R_IA64_LTOFF_FPTR64LSB
:
3243 case R_IA64_SEGREL64LSB
:
3244 case R_IA64_SECREL64LSB
:
3245 case R_IA64_LTV64LSB
:
3246 case R_IA64_TPREL64LSB
:
3247 case R_IA64_DTPMOD64LSB
:
3248 case R_IA64_DTPREL64LSB
:
3249 size
= 8; bigendian
= 0;
3252 /* Unsupported / Dynamic relocations. */
3254 return bfd_reloc_notsupported
;
3259 case IA64_OPND_IMMU64
:
3260 hit_addr
-= (long) hit_addr
& 0x3;
3261 t0
= bfd_getl64 (hit_addr
);
3262 t1
= bfd_getl64 (hit_addr
+ 8);
3264 /* tmpl/s: bits 0.. 5 in t0
3265 slot 0: bits 5..45 in t0
3266 slot 1: bits 46..63 in t0, bits 0..22 in t1
3267 slot 2: bits 23..63 in t1 */
3269 /* First, clear the bits that form the 64 bit constant. */
3270 t0
&= ~(0x3ffffLL
<< 46);
3272 | (( (0x07fLL
<< 13) | (0x1ffLL
<< 27)
3273 | (0x01fLL
<< 22) | (0x001LL
<< 21)
3274 | (0x001LL
<< 36)) << 23));
3276 t0
|= ((val
>> 22) & 0x03ffffLL
) << 46; /* 18 lsbs of imm41 */
3277 t1
|= ((val
>> 40) & 0x7fffffLL
) << 0; /* 23 msbs of imm41 */
3278 t1
|= ( (((val
>> 0) & 0x07f) << 13) /* imm7b */
3279 | (((val
>> 7) & 0x1ff) << 27) /* imm9d */
3280 | (((val
>> 16) & 0x01f) << 22) /* imm5c */
3281 | (((val
>> 21) & 0x001) << 21) /* ic */
3282 | (((val
>> 63) & 0x001) << 36)) << 23; /* i */
3284 bfd_putl64 (t0
, hit_addr
);
3285 bfd_putl64 (t1
, hit_addr
+ 8);
3288 case IA64_OPND_TGT64
:
3289 hit_addr
-= (long) hit_addr
& 0x3;
3290 t0
= bfd_getl64 (hit_addr
);
3291 t1
= bfd_getl64 (hit_addr
+ 8);
3293 /* tmpl/s: bits 0.. 5 in t0
3294 slot 0: bits 5..45 in t0
3295 slot 1: bits 46..63 in t0, bits 0..22 in t1
3296 slot 2: bits 23..63 in t1 */
3298 /* First, clear the bits that form the 64 bit constant. */
3299 t0
&= ~(0x3ffffLL
<< 46);
3301 | ((1LL << 36 | 0xfffffLL
<< 13) << 23));
3304 t0
|= ((val
>> 20) & 0xffffLL
) << 2 << 46; /* 16 lsbs of imm39 */
3305 t1
|= ((val
>> 36) & 0x7fffffLL
) << 0; /* 23 msbs of imm39 */
3306 t1
|= ((((val
>> 0) & 0xfffffLL
) << 13) /* imm20b */
3307 | (((val
>> 59) & 0x1LL
) << 36)) << 23; /* i */
3309 bfd_putl64 (t0
, hit_addr
);
3310 bfd_putl64 (t1
, hit_addr
+ 8);
3314 switch ((long) hit_addr
& 0x3)
3316 case 0: shift
= 5; break;
3317 case 1: shift
= 14; hit_addr
+= 3; break;
3318 case 2: shift
= 23; hit_addr
+= 6; break;
3319 case 3: return bfd_reloc_notsupported
; /* shouldn't happen... */
3321 dword
= bfd_getl64 (hit_addr
);
3322 insn
= (dword
>> shift
) & 0x1ffffffffffLL
;
3324 op
= elf64_ia64_operands
+ opnd
;
3325 err
= (*op
->insert
) (op
, val
, &insn
);
3327 return bfd_reloc_overflow
;
3329 dword
&= ~(0x1ffffffffffLL
<< shift
);
3330 dword
|= (insn
<< shift
);
3331 bfd_putl64 (dword
, hit_addr
);
3335 /* A data relocation. */
3338 bfd_putb32 (val
, hit_addr
);
3340 bfd_putb64 (val
, hit_addr
);
3343 bfd_putl32 (val
, hit_addr
);
3345 bfd_putl64 (val
, hit_addr
);
3349 return bfd_reloc_ok
;
3353 elfNN_ia64_install_dyn_reloc (abfd
, info
, sec
, srel
, offset
, type
,
3356 struct bfd_link_info
*info
;
3364 Elf_Internal_Rela outrel
;
3367 BFD_ASSERT (dynindx
!= -1);
3368 outrel
.r_info
= ELFNN_R_INFO (dynindx
, type
);
3369 outrel
.r_addend
= addend
;
3370 outrel
.r_offset
= _bfd_elf_section_offset (abfd
, info
, sec
, offset
);
3371 if (outrel
.r_offset
>= (bfd_vma
) -2)
3373 /* Run for the hills. We shouldn't be outputting a relocation
3374 for this. So do what everyone else does and output a no-op. */
3375 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
3376 outrel
.r_addend
= 0;
3377 outrel
.r_offset
= 0;
3380 outrel
.r_offset
+= sec
->output_section
->vma
+ sec
->output_offset
;
3382 loc
= srel
->contents
;
3383 loc
+= srel
->reloc_count
++ * sizeof (ElfNN_External_Rela
);
3384 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3385 BFD_ASSERT (sizeof (ElfNN_External_Rela
) * srel
->reloc_count
<= srel
->size
);
3388 /* Store an entry for target address TARGET_ADDR in the linkage table
3389 and return the gp-relative address of the linkage table entry. */
3392 set_got_entry (abfd
, info
, dyn_i
, dynindx
, addend
, value
, dyn_r_type
)
3394 struct bfd_link_info
*info
;
3395 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3399 unsigned int dyn_r_type
;
3401 struct elfNN_ia64_link_hash_table
*ia64_info
;
3406 ia64_info
= elfNN_ia64_hash_table (info
);
3407 got_sec
= ia64_info
->got_sec
;
3411 case R_IA64_TPREL64LSB
:
3412 done
= dyn_i
->tprel_done
;
3413 dyn_i
->tprel_done
= TRUE
;
3414 got_offset
= dyn_i
->tprel_offset
;
3416 case R_IA64_DTPMOD64LSB
:
3417 if (dyn_i
->dtpmod_offset
!= ia64_info
->self_dtpmod_offset
)
3419 done
= dyn_i
->dtpmod_done
;
3420 dyn_i
->dtpmod_done
= TRUE
;
3424 done
= ia64_info
->self_dtpmod_done
;
3425 ia64_info
->self_dtpmod_done
= TRUE
;
3428 got_offset
= dyn_i
->dtpmod_offset
;
3430 case R_IA64_DTPREL32LSB
:
3431 case R_IA64_DTPREL64LSB
:
3432 done
= dyn_i
->dtprel_done
;
3433 dyn_i
->dtprel_done
= TRUE
;
3434 got_offset
= dyn_i
->dtprel_offset
;
3437 done
= dyn_i
->got_done
;
3438 dyn_i
->got_done
= TRUE
;
3439 got_offset
= dyn_i
->got_offset
;
3443 BFD_ASSERT ((got_offset
& 7) == 0);
3447 /* Store the target address in the linkage table entry. */
3448 bfd_put_64 (abfd
, value
, got_sec
->contents
+ got_offset
);
3450 /* Install a dynamic relocation if needed. */
3453 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3454 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
3455 && dyn_r_type
!= R_IA64_DTPREL32LSB
3456 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3457 || elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, info
, dyn_r_type
)
3459 && (dyn_r_type
== R_IA64_FPTR32LSB
3460 || dyn_r_type
== R_IA64_FPTR64LSB
)))
3461 && (!dyn_i
->want_ltoff_fptr
3464 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3467 && dyn_r_type
!= R_IA64_TPREL64LSB
3468 && dyn_r_type
!= R_IA64_DTPMOD64LSB
3469 && dyn_r_type
!= R_IA64_DTPREL32LSB
3470 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3472 dyn_r_type
= R_IA64_RELNNLSB
;
3477 if (bfd_big_endian (abfd
))
3481 case R_IA64_REL32LSB
:
3482 dyn_r_type
= R_IA64_REL32MSB
;
3484 case R_IA64_DIR32LSB
:
3485 dyn_r_type
= R_IA64_DIR32MSB
;
3487 case R_IA64_FPTR32LSB
:
3488 dyn_r_type
= R_IA64_FPTR32MSB
;
3490 case R_IA64_DTPREL32LSB
:
3491 dyn_r_type
= R_IA64_DTPREL32MSB
;
3493 case R_IA64_REL64LSB
:
3494 dyn_r_type
= R_IA64_REL64MSB
;
3496 case R_IA64_DIR64LSB
:
3497 dyn_r_type
= R_IA64_DIR64MSB
;
3499 case R_IA64_FPTR64LSB
:
3500 dyn_r_type
= R_IA64_FPTR64MSB
;
3502 case R_IA64_TPREL64LSB
:
3503 dyn_r_type
= R_IA64_TPREL64MSB
;
3505 case R_IA64_DTPMOD64LSB
:
3506 dyn_r_type
= R_IA64_DTPMOD64MSB
;
3508 case R_IA64_DTPREL64LSB
:
3509 dyn_r_type
= R_IA64_DTPREL64MSB
;
3517 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, got_sec
,
3518 ia64_info
->rel_got_sec
,
3519 got_offset
, dyn_r_type
,
3524 /* Return the address of the linkage table entry. */
3525 value
= (got_sec
->output_section
->vma
3526 + got_sec
->output_offset
3532 /* Fill in a function descriptor consisting of the function's code
3533 address and its global pointer. Return the descriptor's address. */
3536 set_fptr_entry (abfd
, info
, dyn_i
, value
)
3538 struct bfd_link_info
*info
;
3539 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3542 struct elfNN_ia64_link_hash_table
*ia64_info
;
3545 ia64_info
= elfNN_ia64_hash_table (info
);
3546 fptr_sec
= ia64_info
->fptr_sec
;
3548 if (!dyn_i
->fptr_done
)
3550 dyn_i
->fptr_done
= 1;
3552 /* Fill in the function descriptor. */
3553 bfd_put_64 (abfd
, value
, fptr_sec
->contents
+ dyn_i
->fptr_offset
);
3554 bfd_put_64 (abfd
, _bfd_get_gp_value (abfd
),
3555 fptr_sec
->contents
+ dyn_i
->fptr_offset
+ 8);
3556 if (ia64_info
->rel_fptr_sec
)
3558 Elf_Internal_Rela outrel
;
3561 if (bfd_little_endian (abfd
))
3562 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTLSB
);
3564 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTMSB
);
3565 outrel
.r_addend
= value
;
3566 outrel
.r_offset
= (fptr_sec
->output_section
->vma
3567 + fptr_sec
->output_offset
3568 + dyn_i
->fptr_offset
);
3569 loc
= ia64_info
->rel_fptr_sec
->contents
;
3570 loc
+= ia64_info
->rel_fptr_sec
->reloc_count
++
3571 * sizeof (ElfNN_External_Rela
);
3572 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3576 /* Return the descriptor's address. */
3577 value
= (fptr_sec
->output_section
->vma
3578 + fptr_sec
->output_offset
3579 + dyn_i
->fptr_offset
);
3584 /* Fill in a PLTOFF entry consisting of the function's code address
3585 and its global pointer. Return the descriptor's address. */
3588 set_pltoff_entry (abfd
, info
, dyn_i
, value
, is_plt
)
3590 struct bfd_link_info
*info
;
3591 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3595 struct elfNN_ia64_link_hash_table
*ia64_info
;
3596 asection
*pltoff_sec
;
3598 ia64_info
= elfNN_ia64_hash_table (info
);
3599 pltoff_sec
= ia64_info
->pltoff_sec
;
3601 /* Don't do anything if this symbol uses a real PLT entry. In
3602 that case, we'll fill this in during finish_dynamic_symbol. */
3603 if ((! dyn_i
->want_plt
|| is_plt
)
3604 && !dyn_i
->pltoff_done
)
3606 bfd_vma gp
= _bfd_get_gp_value (abfd
);
3608 /* Fill in the function descriptor. */
3609 bfd_put_64 (abfd
, value
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
);
3610 bfd_put_64 (abfd
, gp
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
+ 8);
3612 /* Install dynamic relocations if needed. */
3616 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3617 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3619 unsigned int dyn_r_type
;
3621 if (bfd_big_endian (abfd
))
3622 dyn_r_type
= R_IA64_RELNNMSB
;
3624 dyn_r_type
= R_IA64_RELNNLSB
;
3626 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3627 ia64_info
->rel_pltoff_sec
,
3628 dyn_i
->pltoff_offset
,
3629 dyn_r_type
, 0, value
);
3630 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3631 ia64_info
->rel_pltoff_sec
,
3632 dyn_i
->pltoff_offset
+ ARCH_SIZE
/ 8,
3636 dyn_i
->pltoff_done
= 1;
3639 /* Return the descriptor's address. */
3640 value
= (pltoff_sec
->output_section
->vma
3641 + pltoff_sec
->output_offset
3642 + dyn_i
->pltoff_offset
);
3647 /* Return the base VMA address which should be subtracted from real addresses
3648 when resolving @tprel() relocation.
3649 Main program TLS (whose template starts at PT_TLS p_vaddr)
3650 is assigned offset round(2 * size of pointer, PT_TLS p_align). */
3653 elfNN_ia64_tprel_base (info
)
3654 struct bfd_link_info
*info
;
3656 asection
*tls_sec
= elf_hash_table (info
)->tls_sec
;
3658 BFD_ASSERT (tls_sec
!= NULL
);
3659 return tls_sec
->vma
- align_power ((bfd_vma
) ARCH_SIZE
/ 4,
3660 tls_sec
->alignment_power
);
3663 /* Return the base VMA address which should be subtracted from real addresses
3664 when resolving @dtprel() relocation.
3665 This is PT_TLS segment p_vaddr. */
3668 elfNN_ia64_dtprel_base (info
)
3669 struct bfd_link_info
*info
;
3671 BFD_ASSERT (elf_hash_table (info
)->tls_sec
!= NULL
);
3672 return elf_hash_table (info
)->tls_sec
->vma
;
3675 /* Called through qsort to sort the .IA_64.unwind section during a
3676 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3677 to the output bfd so we can do proper endianness frobbing. */
3679 static bfd
*elfNN_ia64_unwind_entry_compare_bfd
;
3682 elfNN_ia64_unwind_entry_compare (a
, b
)
3688 av
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, a
);
3689 bv
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, b
);
3691 return (av
< bv
? -1 : av
> bv
? 1 : 0);
3694 /* Make sure we've got ourselves a nice fat __gp value. */
3696 elfNN_ia64_choose_gp (abfd
, info
)
3698 struct bfd_link_info
*info
;
3700 bfd_vma min_vma
= (bfd_vma
) -1, max_vma
= 0;
3701 bfd_vma min_short_vma
= min_vma
, max_short_vma
= 0;
3702 struct elf_link_hash_entry
*gp
;
3705 struct elfNN_ia64_link_hash_table
*ia64_info
;
3707 ia64_info
= elfNN_ia64_hash_table (info
);
3709 /* Find the min and max vma of all sections marked short. Also collect
3710 min and max vma of any type, for use in selecting a nice gp. */
3711 for (os
= abfd
->sections
; os
; os
= os
->next
)
3715 if ((os
->flags
& SEC_ALLOC
) == 0)
3719 hi
= os
->vma
+ os
->size
;
3727 if (os
->flags
& SEC_SMALL_DATA
)
3729 if (min_short_vma
> lo
)
3731 if (max_short_vma
< hi
)
3736 /* See if the user wants to force a value. */
3737 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3741 && (gp
->root
.type
== bfd_link_hash_defined
3742 || gp
->root
.type
== bfd_link_hash_defweak
))
3744 asection
*gp_sec
= gp
->root
.u
.def
.section
;
3745 gp_val
= (gp
->root
.u
.def
.value
3746 + gp_sec
->output_section
->vma
3747 + gp_sec
->output_offset
);
3751 /* Pick a sensible value. */
3753 asection
*got_sec
= ia64_info
->got_sec
;
3755 /* Start with just the address of the .got. */
3757 gp_val
= got_sec
->output_section
->vma
;
3758 else if (max_short_vma
!= 0)
3759 gp_val
= min_short_vma
;
3763 /* If it is possible to address the entire image, but we
3764 don't with the choice above, adjust. */
3765 if (max_vma
- min_vma
< 0x400000
3766 && max_vma
- gp_val
<= 0x200000
3767 && gp_val
- min_vma
> 0x200000)
3768 gp_val
= min_vma
+ 0x200000;
3769 else if (max_short_vma
!= 0)
3771 /* If we don't cover all the short data, adjust. */
3772 if (max_short_vma
- gp_val
>= 0x200000)
3773 gp_val
= min_short_vma
+ 0x200000;
3775 /* If we're addressing stuff past the end, adjust back. */
3776 if (gp_val
> max_vma
)
3777 gp_val
= max_vma
- 0x200000 + 8;
3781 /* Validate whether all SHF_IA_64_SHORT sections are within
3782 range of the chosen GP. */
3784 if (max_short_vma
!= 0)
3786 if (max_short_vma
- min_short_vma
>= 0x400000)
3788 (*_bfd_error_handler
)
3789 (_("%s: short data segment overflowed (0x%lx >= 0x400000)"),
3790 bfd_get_filename (abfd
),
3791 (unsigned long) (max_short_vma
- min_short_vma
));
3794 else if ((gp_val
> min_short_vma
3795 && gp_val
- min_short_vma
> 0x200000)
3796 || (gp_val
< max_short_vma
3797 && max_short_vma
- gp_val
>= 0x200000))
3799 (*_bfd_error_handler
)
3800 (_("%s: __gp does not cover short data segment"),
3801 bfd_get_filename (abfd
));
3806 _bfd_set_gp_value (abfd
, gp_val
);
3812 elfNN_ia64_final_link (abfd
, info
)
3814 struct bfd_link_info
*info
;
3816 struct elfNN_ia64_link_hash_table
*ia64_info
;
3817 asection
*unwind_output_sec
;
3819 ia64_info
= elfNN_ia64_hash_table (info
);
3821 /* Make sure we've got ourselves a nice fat __gp value. */
3822 if (!info
->relocatable
)
3824 bfd_vma gp_val
= _bfd_get_gp_value (abfd
);
3825 struct elf_link_hash_entry
*gp
;
3829 if (! elfNN_ia64_choose_gp (abfd
, info
))
3831 gp_val
= _bfd_get_gp_value (abfd
);
3834 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3838 gp
->root
.type
= bfd_link_hash_defined
;
3839 gp
->root
.u
.def
.value
= gp_val
;
3840 gp
->root
.u
.def
.section
= bfd_abs_section_ptr
;
3844 /* If we're producing a final executable, we need to sort the contents
3845 of the .IA_64.unwind section. Force this section to be relocated
3846 into memory rather than written immediately to the output file. */
3847 unwind_output_sec
= NULL
;
3848 if (!info
->relocatable
)
3850 asection
*s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_unwind
);
3853 unwind_output_sec
= s
->output_section
;
3854 unwind_output_sec
->contents
3855 = bfd_malloc (unwind_output_sec
->size
);
3856 if (unwind_output_sec
->contents
== NULL
)
3861 /* Invoke the regular ELF backend linker to do all the work. */
3862 if (!bfd_elf_final_link (abfd
, info
))
3865 if (unwind_output_sec
)
3867 elfNN_ia64_unwind_entry_compare_bfd
= abfd
;
3868 qsort (unwind_output_sec
->contents
,
3869 (size_t) (unwind_output_sec
->size
/ 24),
3871 elfNN_ia64_unwind_entry_compare
);
3873 if (! bfd_set_section_contents (abfd
, unwind_output_sec
,
3874 unwind_output_sec
->contents
, (bfd_vma
) 0,
3875 unwind_output_sec
->size
))
3883 elfNN_ia64_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
3884 contents
, relocs
, local_syms
, local_sections
)
3886 struct bfd_link_info
*info
;
3888 asection
*input_section
;
3890 Elf_Internal_Rela
*relocs
;
3891 Elf_Internal_Sym
*local_syms
;
3892 asection
**local_sections
;
3894 struct elfNN_ia64_link_hash_table
*ia64_info
;
3895 Elf_Internal_Shdr
*symtab_hdr
;
3896 Elf_Internal_Rela
*rel
;
3897 Elf_Internal_Rela
*relend
;
3899 bfd_boolean ret_val
= TRUE
; /* for non-fatal errors */
3902 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3903 ia64_info
= elfNN_ia64_hash_table (info
);
3905 /* Infect various flags from the input section to the output section. */
3906 if (info
->relocatable
)
3910 flags
= elf_section_data(input_section
)->this_hdr
.sh_flags
;
3911 flags
&= SHF_IA_64_NORECOV
;
3913 elf_section_data(input_section
->output_section
)
3914 ->this_hdr
.sh_flags
|= flags
;
3918 gp_val
= _bfd_get_gp_value (output_bfd
);
3919 srel
= get_reloc_section (input_bfd
, ia64_info
, input_section
, FALSE
);
3922 relend
= relocs
+ input_section
->reloc_count
;
3923 for (; rel
< relend
; ++rel
)
3925 struct elf_link_hash_entry
*h
;
3926 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3927 bfd_reloc_status_type r
;
3928 reloc_howto_type
*howto
;
3929 unsigned long r_symndx
;
3930 Elf_Internal_Sym
*sym
;
3931 unsigned int r_type
;
3935 bfd_boolean dynamic_symbol_p
;
3936 bfd_boolean undef_weak_ref
;
3938 r_type
= ELFNN_R_TYPE (rel
->r_info
);
3939 if (r_type
> R_IA64_MAX_RELOC_CODE
)
3941 (*_bfd_error_handler
)
3942 (_("%B: unknown relocation type %d"),
3943 input_bfd
, (int) r_type
);
3944 bfd_set_error (bfd_error_bad_value
);
3949 howto
= lookup_howto (r_type
);
3950 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
3954 undef_weak_ref
= FALSE
;
3956 if (r_symndx
< symtab_hdr
->sh_info
)
3958 /* Reloc against local symbol. */
3960 sym
= local_syms
+ r_symndx
;
3961 sym_sec
= local_sections
[r_symndx
];
3963 value
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &msec
, rel
);
3964 if ((sym_sec
->flags
& SEC_MERGE
)
3965 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
3966 && sym_sec
->sec_info_type
== ELF_INFO_TYPE_MERGE
)
3968 struct elfNN_ia64_local_hash_entry
*loc_h
;
3970 loc_h
= get_local_sym_hash (ia64_info
, input_bfd
, rel
, FALSE
);
3971 if (loc_h
&& ! loc_h
->sec_merge_done
)
3973 struct elfNN_ia64_dyn_sym_info
*dynent
;
3975 for (dynent
= loc_h
->info
; dynent
; dynent
= dynent
->next
)
3979 _bfd_merged_section_offset (output_bfd
, &msec
,
3980 elf_section_data (msec
)->
3984 dynent
->addend
-= sym
->st_value
;
3985 dynent
->addend
+= msec
->output_section
->vma
3986 + msec
->output_offset
3987 - sym_sec
->output_section
->vma
3988 - sym_sec
->output_offset
;
3990 loc_h
->sec_merge_done
= 1;
3996 bfd_boolean unresolved_reloc
;
3998 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
4000 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
4001 r_symndx
, symtab_hdr
, sym_hashes
,
4003 unresolved_reloc
, warned
);
4005 if (h
->root
.type
== bfd_link_hash_undefweak
)
4006 undef_weak_ref
= TRUE
;
4011 hit_addr
= contents
+ rel
->r_offset
;
4012 value
+= rel
->r_addend
;
4013 dynamic_symbol_p
= elfNN_ia64_dynamic_symbol_p (h
, info
, r_type
);
4024 case R_IA64_DIR32MSB
:
4025 case R_IA64_DIR32LSB
:
4026 case R_IA64_DIR64MSB
:
4027 case R_IA64_DIR64LSB
:
4028 /* Install a dynamic relocation for this reloc. */
4029 if ((dynamic_symbol_p
|| info
->shared
)
4031 && (input_section
->flags
& SEC_ALLOC
) != 0)
4033 unsigned int dyn_r_type
;
4037 BFD_ASSERT (srel
!= NULL
);
4044 /* ??? People shouldn't be doing non-pic code in
4045 shared libraries nor dynamic executables. */
4046 (*_bfd_error_handler
)
4047 (_("%B: non-pic code with imm relocation against dynamic symbol `%s'"),
4049 h
? h
->root
.root
.string
4050 : bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4059 /* If we don't need dynamic symbol lookup, find a
4060 matching RELATIVE relocation. */
4061 dyn_r_type
= r_type
;
4062 if (dynamic_symbol_p
)
4064 dynindx
= h
->dynindx
;
4065 addend
= rel
->r_addend
;
4072 case R_IA64_DIR32MSB
:
4073 dyn_r_type
= R_IA64_REL32MSB
;
4075 case R_IA64_DIR32LSB
:
4076 dyn_r_type
= R_IA64_REL32LSB
;
4078 case R_IA64_DIR64MSB
:
4079 dyn_r_type
= R_IA64_REL64MSB
;
4081 case R_IA64_DIR64LSB
:
4082 dyn_r_type
= R_IA64_REL64LSB
;
4092 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4093 srel
, rel
->r_offset
, dyn_r_type
,
4098 case R_IA64_LTV32MSB
:
4099 case R_IA64_LTV32LSB
:
4100 case R_IA64_LTV64MSB
:
4101 case R_IA64_LTV64LSB
:
4102 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4105 case R_IA64_GPREL22
:
4106 case R_IA64_GPREL64I
:
4107 case R_IA64_GPREL32MSB
:
4108 case R_IA64_GPREL32LSB
:
4109 case R_IA64_GPREL64MSB
:
4110 case R_IA64_GPREL64LSB
:
4111 if (dynamic_symbol_p
)
4113 (*_bfd_error_handler
)
4114 (_("%B: @gprel relocation against dynamic symbol %s"),
4116 h
? h
->root
.root
.string
4117 : bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4123 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4126 case R_IA64_LTOFF22
:
4127 case R_IA64_LTOFF22X
:
4128 case R_IA64_LTOFF64I
:
4129 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4130 value
= set_got_entry (input_bfd
, info
, dyn_i
, (h
? h
->dynindx
: -1),
4131 rel
->r_addend
, value
, R_IA64_DIRNNLSB
);
4133 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4136 case R_IA64_PLTOFF22
:
4137 case R_IA64_PLTOFF64I
:
4138 case R_IA64_PLTOFF64MSB
:
4139 case R_IA64_PLTOFF64LSB
:
4140 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4141 value
= set_pltoff_entry (output_bfd
, info
, dyn_i
, value
, FALSE
);
4143 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4146 case R_IA64_FPTR64I
:
4147 case R_IA64_FPTR32MSB
:
4148 case R_IA64_FPTR32LSB
:
4149 case R_IA64_FPTR64MSB
:
4150 case R_IA64_FPTR64LSB
:
4151 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4152 if (dyn_i
->want_fptr
)
4154 if (!undef_weak_ref
)
4155 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4157 if (!dyn_i
->want_fptr
|| info
->pie
)
4160 unsigned int dyn_r_type
= r_type
;
4161 bfd_vma addend
= rel
->r_addend
;
4163 /* Otherwise, we expect the dynamic linker to create
4166 if (dyn_i
->want_fptr
)
4168 if (r_type
== R_IA64_FPTR64I
)
4170 /* We can't represent this without a dynamic symbol.
4171 Adjust the relocation to be against an output
4172 section symbol, which are always present in the
4173 dynamic symbol table. */
4174 /* ??? People shouldn't be doing non-pic code in
4175 shared libraries. Hork. */
4176 (*_bfd_error_handler
)
4177 (_("%B: linking non-pic code in a position independent executable"),
4184 dyn_r_type
= r_type
+ R_IA64_RELNNLSB
- R_IA64_FPTRNNLSB
;
4188 if (h
->dynindx
!= -1)
4189 dynindx
= h
->dynindx
;
4191 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4192 (info
, h
->root
.u
.def
.section
->owner
,
4193 global_sym_index (h
)));
4198 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4199 (info
, input_bfd
, (long) r_symndx
));
4203 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4204 srel
, rel
->r_offset
, dyn_r_type
,
4208 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4211 case R_IA64_LTOFF_FPTR22
:
4212 case R_IA64_LTOFF_FPTR64I
:
4213 case R_IA64_LTOFF_FPTR32MSB
:
4214 case R_IA64_LTOFF_FPTR32LSB
:
4215 case R_IA64_LTOFF_FPTR64MSB
:
4216 case R_IA64_LTOFF_FPTR64LSB
:
4220 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4221 if (dyn_i
->want_fptr
)
4223 BFD_ASSERT (h
== NULL
|| h
->dynindx
== -1);
4224 if (!undef_weak_ref
)
4225 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4230 /* Otherwise, we expect the dynamic linker to create
4234 if (h
->dynindx
!= -1)
4235 dynindx
= h
->dynindx
;
4237 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4238 (info
, h
->root
.u
.def
.section
->owner
,
4239 global_sym_index (h
)));
4242 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4243 (info
, input_bfd
, (long) r_symndx
));
4247 value
= set_got_entry (output_bfd
, info
, dyn_i
, dynindx
,
4248 rel
->r_addend
, value
, R_IA64_FPTRNNLSB
);
4250 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4254 case R_IA64_PCREL32MSB
:
4255 case R_IA64_PCREL32LSB
:
4256 case R_IA64_PCREL64MSB
:
4257 case R_IA64_PCREL64LSB
:
4258 /* Install a dynamic relocation for this reloc. */
4259 if (dynamic_symbol_p
&& r_symndx
!= 0)
4261 BFD_ASSERT (srel
!= NULL
);
4263 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4264 srel
, rel
->r_offset
, r_type
,
4265 h
->dynindx
, rel
->r_addend
);
4269 case R_IA64_PCREL21B
:
4270 case R_IA64_PCREL60B
:
4271 /* We should have created a PLT entry for any dynamic symbol. */
4274 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4276 if (dyn_i
&& dyn_i
->want_plt2
)
4278 /* Should have caught this earlier. */
4279 BFD_ASSERT (rel
->r_addend
== 0);
4281 value
= (ia64_info
->plt_sec
->output_section
->vma
4282 + ia64_info
->plt_sec
->output_offset
4283 + dyn_i
->plt2_offset
);
4287 /* Since there's no PLT entry, Validate that this is
4289 BFD_ASSERT (undef_weak_ref
|| sym_sec
->output_section
!= NULL
);
4291 /* If the symbol is undef_weak, we shouldn't be trying
4292 to call it. There's every chance that we'd wind up
4293 with an out-of-range fixup here. Don't bother setting
4294 any value at all. */
4300 case R_IA64_PCREL21BI
:
4301 case R_IA64_PCREL21F
:
4302 case R_IA64_PCREL21M
:
4303 case R_IA64_PCREL22
:
4304 case R_IA64_PCREL64I
:
4305 /* The PCREL21BI reloc is specifically not intended for use with
4306 dynamic relocs. PCREL21F and PCREL21M are used for speculation
4307 fixup code, and thus probably ought not be dynamic. The
4308 PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4309 if (dynamic_symbol_p
)
4313 if (r_type
== R_IA64_PCREL21BI
)
4314 msg
= _("%B: @internal branch to dynamic symbol %s");
4315 else if (r_type
== R_IA64_PCREL21F
|| r_type
== R_IA64_PCREL21M
)
4316 msg
= _("%B: speculation fixup to dynamic symbol %s");
4318 msg
= _("%B: @pcrel relocation against dynamic symbol %s");
4319 (*_bfd_error_handler
) (msg
, input_bfd
,
4320 h
? h
->root
.root
.string
4321 : bfd_elf_sym_name (input_bfd
,
4331 /* Make pc-relative. */
4332 value
-= (input_section
->output_section
->vma
4333 + input_section
->output_offset
4334 + rel
->r_offset
) & ~ (bfd_vma
) 0x3;
4335 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4338 case R_IA64_SEGREL32MSB
:
4339 case R_IA64_SEGREL32LSB
:
4340 case R_IA64_SEGREL64MSB
:
4341 case R_IA64_SEGREL64LSB
:
4344 /* If the input section was discarded from the output, then
4350 struct elf_segment_map
*m
;
4351 Elf_Internal_Phdr
*p
;
4353 /* Find the segment that contains the output_section. */
4354 for (m
= elf_tdata (output_bfd
)->segment_map
,
4355 p
= elf_tdata (output_bfd
)->phdr
;
4360 for (i
= m
->count
- 1; i
>= 0; i
--)
4361 if (m
->sections
[i
] == input_section
->output_section
)
4369 r
= bfd_reloc_notsupported
;
4373 /* The VMA of the segment is the vaddr of the associated
4375 if (value
> p
->p_vaddr
)
4376 value
-= p
->p_vaddr
;
4379 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4384 case R_IA64_SECREL32MSB
:
4385 case R_IA64_SECREL32LSB
:
4386 case R_IA64_SECREL64MSB
:
4387 case R_IA64_SECREL64LSB
:
4388 /* Make output-section relative to section where the symbol
4389 is defined. PR 475 */
4391 value
-= sym_sec
->output_section
->vma
;
4392 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4395 case R_IA64_IPLTMSB
:
4396 case R_IA64_IPLTLSB
:
4397 /* Install a dynamic relocation for this reloc. */
4398 if ((dynamic_symbol_p
|| info
->shared
)
4399 && (input_section
->flags
& SEC_ALLOC
) != 0)
4401 BFD_ASSERT (srel
!= NULL
);
4403 /* If we don't need dynamic symbol lookup, install two
4404 RELATIVE relocations. */
4405 if (!dynamic_symbol_p
)
4407 unsigned int dyn_r_type
;
4409 if (r_type
== R_IA64_IPLTMSB
)
4410 dyn_r_type
= R_IA64_REL64MSB
;
4412 dyn_r_type
= R_IA64_REL64LSB
;
4414 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4416 srel
, rel
->r_offset
,
4417 dyn_r_type
, 0, value
);
4418 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4420 srel
, rel
->r_offset
+ 8,
4421 dyn_r_type
, 0, gp_val
);
4424 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4425 srel
, rel
->r_offset
, r_type
,
4426 h
->dynindx
, rel
->r_addend
);
4429 if (r_type
== R_IA64_IPLTMSB
)
4430 r_type
= R_IA64_DIR64MSB
;
4432 r_type
= R_IA64_DIR64LSB
;
4433 elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4434 r
= elfNN_ia64_install_value (hit_addr
+ 8, gp_val
, r_type
);
4437 case R_IA64_TPREL14
:
4438 case R_IA64_TPREL22
:
4439 case R_IA64_TPREL64I
:
4440 value
-= elfNN_ia64_tprel_base (info
);
4441 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4444 case R_IA64_DTPREL14
:
4445 case R_IA64_DTPREL22
:
4446 case R_IA64_DTPREL64I
:
4447 case R_IA64_DTPREL32LSB
:
4448 case R_IA64_DTPREL32MSB
:
4449 case R_IA64_DTPREL64LSB
:
4450 case R_IA64_DTPREL64MSB
:
4451 value
-= elfNN_ia64_dtprel_base (info
);
4452 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4455 case R_IA64_LTOFF_TPREL22
:
4456 case R_IA64_LTOFF_DTPMOD22
:
4457 case R_IA64_LTOFF_DTPREL22
:
4460 long dynindx
= h
? h
->dynindx
: -1;
4461 bfd_vma r_addend
= rel
->r_addend
;
4466 case R_IA64_LTOFF_TPREL22
:
4467 if (!dynamic_symbol_p
)
4470 value
-= elfNN_ia64_tprel_base (info
);
4473 r_addend
+= value
- elfNN_ia64_dtprel_base (info
);
4477 got_r_type
= R_IA64_TPREL64LSB
;
4479 case R_IA64_LTOFF_DTPMOD22
:
4480 if (!dynamic_symbol_p
&& !info
->shared
)
4482 got_r_type
= R_IA64_DTPMOD64LSB
;
4484 case R_IA64_LTOFF_DTPREL22
:
4485 if (!dynamic_symbol_p
)
4486 value
-= elfNN_ia64_dtprel_base (info
);
4487 got_r_type
= R_IA64_DTPRELNNLSB
;
4490 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4491 value
= set_got_entry (input_bfd
, info
, dyn_i
, dynindx
, r_addend
,
4494 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4499 r
= bfd_reloc_notsupported
;
4508 case bfd_reloc_undefined
:
4509 /* This can happen for global table relative relocs if
4510 __gp is undefined. This is a panic situation so we
4511 don't try to continue. */
4512 (*info
->callbacks
->undefined_symbol
)
4513 (info
, "__gp", input_bfd
, input_section
, rel
->r_offset
, 1);
4516 case bfd_reloc_notsupported
:
4521 name
= h
->root
.root
.string
;
4523 name
= bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4525 if (!(*info
->callbacks
->warning
) (info
, _("unsupported reloc"),
4527 input_section
, rel
->r_offset
))
4533 case bfd_reloc_dangerous
:
4534 case bfd_reloc_outofrange
:
4535 case bfd_reloc_overflow
:
4541 name
= h
->root
.root
.string
;
4543 name
= bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4548 case R_IA64_PCREL21B
:
4549 case R_IA64_PCREL21BI
:
4550 case R_IA64_PCREL21M
:
4551 case R_IA64_PCREL21F
:
4552 if (is_elf_hash_table (info
->hash
))
4554 /* Relaxtion is always performed for ELF output.
4555 Overflow failures for those relocations mean
4556 that the section is too big to relax. */
4557 (*_bfd_error_handler
)
4558 (_("%B: Can't relax br (%s) to `%s' at 0x%lx in section `%A' with size 0x%lx (> 0x1000000)."),
4559 input_bfd
, input_section
, howto
->name
, name
,
4560 rel
->r_offset
, input_section
->size
);
4564 if (!(*info
->callbacks
->reloc_overflow
) (info
,
4586 elfNN_ia64_finish_dynamic_symbol (output_bfd
, info
, h
, sym
)
4588 struct bfd_link_info
*info
;
4589 struct elf_link_hash_entry
*h
;
4590 Elf_Internal_Sym
*sym
;
4592 struct elfNN_ia64_link_hash_table
*ia64_info
;
4593 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
4595 ia64_info
= elfNN_ia64_hash_table (info
);
4596 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4598 /* Fill in the PLT data, if required. */
4599 if (dyn_i
&& dyn_i
->want_plt
)
4601 Elf_Internal_Rela outrel
;
4604 bfd_vma plt_addr
, pltoff_addr
, gp_val
, index
;
4606 gp_val
= _bfd_get_gp_value (output_bfd
);
4608 /* Initialize the minimal PLT entry. */
4610 index
= (dyn_i
->plt_offset
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
4611 plt_sec
= ia64_info
->plt_sec
;
4612 loc
= plt_sec
->contents
+ dyn_i
->plt_offset
;
4614 memcpy (loc
, plt_min_entry
, PLT_MIN_ENTRY_SIZE
);
4615 elfNN_ia64_install_value (loc
, index
, R_IA64_IMM22
);
4616 elfNN_ia64_install_value (loc
+2, -dyn_i
->plt_offset
, R_IA64_PCREL21B
);
4618 plt_addr
= (plt_sec
->output_section
->vma
4619 + plt_sec
->output_offset
4620 + dyn_i
->plt_offset
);
4621 pltoff_addr
= set_pltoff_entry (output_bfd
, info
, dyn_i
, plt_addr
, TRUE
);
4623 /* Initialize the FULL PLT entry, if needed. */
4624 if (dyn_i
->want_plt2
)
4626 loc
= plt_sec
->contents
+ dyn_i
->plt2_offset
;
4628 memcpy (loc
, plt_full_entry
, PLT_FULL_ENTRY_SIZE
);
4629 elfNN_ia64_install_value (loc
, pltoff_addr
- gp_val
, R_IA64_IMM22
);
4631 /* Mark the symbol as undefined, rather than as defined in the
4632 plt section. Leave the value alone. */
4633 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4634 first place. But perhaps elflink.c did some for us. */
4635 if (!h
->def_regular
)
4636 sym
->st_shndx
= SHN_UNDEF
;
4639 /* Create the dynamic relocation. */
4640 outrel
.r_offset
= pltoff_addr
;
4641 if (bfd_little_endian (output_bfd
))
4642 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTLSB
);
4644 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTMSB
);
4645 outrel
.r_addend
= 0;
4647 /* This is fun. In the .IA_64.pltoff section, we've got entries
4648 that correspond both to real PLT entries, and those that
4649 happened to resolve to local symbols but need to be created
4650 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4651 relocations for the real PLT should come at the end of the
4652 section, so that they can be indexed by plt entry at runtime.
4654 We emitted all of the relocations for the non-PLT @pltoff
4655 entries during relocate_section. So we can consider the
4656 existing sec->reloc_count to be the base of the array of
4659 loc
= ia64_info
->rel_pltoff_sec
->contents
;
4660 loc
+= ((ia64_info
->rel_pltoff_sec
->reloc_count
+ index
)
4661 * sizeof (ElfNN_External_Rela
));
4662 bfd_elfNN_swap_reloca_out (output_bfd
, &outrel
, loc
);
4665 /* Mark some specially defined symbols as absolute. */
4666 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
4667 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0
4668 || strcmp (h
->root
.root
.string
, "_PROCEDURE_LINKAGE_TABLE_") == 0)
4669 sym
->st_shndx
= SHN_ABS
;
4675 elfNN_ia64_finish_dynamic_sections (abfd
, info
)
4677 struct bfd_link_info
*info
;
4679 struct elfNN_ia64_link_hash_table
*ia64_info
;
4682 ia64_info
= elfNN_ia64_hash_table (info
);
4683 dynobj
= ia64_info
->root
.dynobj
;
4685 if (elf_hash_table (info
)->dynamic_sections_created
)
4687 ElfNN_External_Dyn
*dyncon
, *dynconend
;
4688 asection
*sdyn
, *sgotplt
;
4691 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
4692 sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
4693 BFD_ASSERT (sdyn
!= NULL
);
4694 dyncon
= (ElfNN_External_Dyn
*) sdyn
->contents
;
4695 dynconend
= (ElfNN_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
4697 gp_val
= _bfd_get_gp_value (abfd
);
4699 for (; dyncon
< dynconend
; dyncon
++)
4701 Elf_Internal_Dyn dyn
;
4703 bfd_elfNN_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4708 dyn
.d_un
.d_ptr
= gp_val
;
4712 dyn
.d_un
.d_val
= (ia64_info
->minplt_entries
4713 * sizeof (ElfNN_External_Rela
));
4717 /* See the comment above in finish_dynamic_symbol. */
4718 dyn
.d_un
.d_ptr
= (ia64_info
->rel_pltoff_sec
->output_section
->vma
4719 + ia64_info
->rel_pltoff_sec
->output_offset
4720 + (ia64_info
->rel_pltoff_sec
->reloc_count
4721 * sizeof (ElfNN_External_Rela
)));
4724 case DT_IA_64_PLT_RESERVE
:
4725 dyn
.d_un
.d_ptr
= (sgotplt
->output_section
->vma
4726 + sgotplt
->output_offset
);
4730 /* Do not have RELASZ include JMPREL. This makes things
4731 easier on ld.so. This is not what the rest of BFD set up. */
4732 dyn
.d_un
.d_val
-= (ia64_info
->minplt_entries
4733 * sizeof (ElfNN_External_Rela
));
4737 bfd_elfNN_swap_dyn_out (abfd
, &dyn
, dyncon
);
4740 /* Initialize the PLT0 entry. */
4741 if (ia64_info
->plt_sec
)
4743 bfd_byte
*loc
= ia64_info
->plt_sec
->contents
;
4746 memcpy (loc
, plt_header
, PLT_HEADER_SIZE
);
4748 pltres
= (sgotplt
->output_section
->vma
4749 + sgotplt
->output_offset
4752 elfNN_ia64_install_value (loc
+1, pltres
, R_IA64_GPREL22
);
4759 /* ELF file flag handling: */
4761 /* Function to keep IA-64 specific file flags. */
4763 elfNN_ia64_set_private_flags (abfd
, flags
)
4767 BFD_ASSERT (!elf_flags_init (abfd
)
4768 || elf_elfheader (abfd
)->e_flags
== flags
);
4770 elf_elfheader (abfd
)->e_flags
= flags
;
4771 elf_flags_init (abfd
) = TRUE
;
4775 /* Merge backend specific data from an object file to the output
4776 object file when linking. */
4778 elfNN_ia64_merge_private_bfd_data (ibfd
, obfd
)
4783 bfd_boolean ok
= TRUE
;
4785 /* Don't even pretend to support mixed-format linking. */
4786 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
4787 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
4790 in_flags
= elf_elfheader (ibfd
)->e_flags
;
4791 out_flags
= elf_elfheader (obfd
)->e_flags
;
4793 if (! elf_flags_init (obfd
))
4795 elf_flags_init (obfd
) = TRUE
;
4796 elf_elfheader (obfd
)->e_flags
= in_flags
;
4798 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
4799 && bfd_get_arch_info (obfd
)->the_default
)
4801 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
4802 bfd_get_mach (ibfd
));
4808 /* Check flag compatibility. */
4809 if (in_flags
== out_flags
)
4812 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4813 if (!(in_flags
& EF_IA_64_REDUCEDFP
) && (out_flags
& EF_IA_64_REDUCEDFP
))
4814 elf_elfheader (obfd
)->e_flags
&= ~EF_IA_64_REDUCEDFP
;
4816 if ((in_flags
& EF_IA_64_TRAPNIL
) != (out_flags
& EF_IA_64_TRAPNIL
))
4818 (*_bfd_error_handler
)
4819 (_("%B: linking trap-on-NULL-dereference with non-trapping files"),
4822 bfd_set_error (bfd_error_bad_value
);
4825 if ((in_flags
& EF_IA_64_BE
) != (out_flags
& EF_IA_64_BE
))
4827 (*_bfd_error_handler
)
4828 (_("%B: linking big-endian files with little-endian files"),
4831 bfd_set_error (bfd_error_bad_value
);
4834 if ((in_flags
& EF_IA_64_ABI64
) != (out_flags
& EF_IA_64_ABI64
))
4836 (*_bfd_error_handler
)
4837 (_("%B: linking 64-bit files with 32-bit files"),
4840 bfd_set_error (bfd_error_bad_value
);
4843 if ((in_flags
& EF_IA_64_CONS_GP
) != (out_flags
& EF_IA_64_CONS_GP
))
4845 (*_bfd_error_handler
)
4846 (_("%B: linking constant-gp files with non-constant-gp files"),
4849 bfd_set_error (bfd_error_bad_value
);
4852 if ((in_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
)
4853 != (out_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
))
4855 (*_bfd_error_handler
)
4856 (_("%B: linking auto-pic files with non-auto-pic files"),
4859 bfd_set_error (bfd_error_bad_value
);
4867 elfNN_ia64_print_private_bfd_data (abfd
, ptr
)
4871 FILE *file
= (FILE *) ptr
;
4872 flagword flags
= elf_elfheader (abfd
)->e_flags
;
4874 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
4876 fprintf (file
, "private flags = %s%s%s%s%s%s%s%s\n",
4877 (flags
& EF_IA_64_TRAPNIL
) ? "TRAPNIL, " : "",
4878 (flags
& EF_IA_64_EXT
) ? "EXT, " : "",
4879 (flags
& EF_IA_64_BE
) ? "BE, " : "LE, ",
4880 (flags
& EF_IA_64_REDUCEDFP
) ? "REDUCEDFP, " : "",
4881 (flags
& EF_IA_64_CONS_GP
) ? "CONS_GP, " : "",
4882 (flags
& EF_IA_64_NOFUNCDESC_CONS_GP
) ? "NOFUNCDESC_CONS_GP, " : "",
4883 (flags
& EF_IA_64_ABSOLUTE
) ? "ABSOLUTE, " : "",
4884 (flags
& EF_IA_64_ABI64
) ? "ABI64" : "ABI32");
4886 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
4890 static enum elf_reloc_type_class
4891 elfNN_ia64_reloc_type_class (rela
)
4892 const Elf_Internal_Rela
*rela
;
4894 switch ((int) ELFNN_R_TYPE (rela
->r_info
))
4896 case R_IA64_REL32MSB
:
4897 case R_IA64_REL32LSB
:
4898 case R_IA64_REL64MSB
:
4899 case R_IA64_REL64LSB
:
4900 return reloc_class_relative
;
4901 case R_IA64_IPLTMSB
:
4902 case R_IA64_IPLTLSB
:
4903 return reloc_class_plt
;
4905 return reloc_class_copy
;
4907 return reloc_class_normal
;
4911 static struct bfd_elf_special_section
const elfNN_ia64_special_sections
[]=
4913 { ".sbss", 5, -1, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4914 { ".sdata", 6, -1, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4915 { NULL
, 0, 0, 0, 0 }
4919 elfNN_ia64_object_p (bfd
*abfd
)
4922 asection
*group
, *unwi
, *unw
;
4925 char *unwi_name
, *unw_name
;
4928 if (abfd
->flags
& DYNAMIC
)
4931 /* Flags for fake group section. */
4932 flags
= (SEC_LINKER_CREATED
| SEC_GROUP
| SEC_LINK_ONCE
4935 /* We add a fake section group for each .gnu.linkonce.t.* section,
4936 which isn't in a section group, and its unwind sections. */
4937 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4939 if (elf_sec_group (sec
) == NULL
4940 && ((sec
->flags
& (SEC_LINK_ONCE
| SEC_CODE
| SEC_GROUP
))
4941 == (SEC_LINK_ONCE
| SEC_CODE
))
4942 && strncmp (sec
->name
, ".gnu.linkonce.t.", 16) == 0)
4944 name
= sec
->name
+ 16;
4946 amt
= strlen (name
) + sizeof (".gnu.linkonce.ia64unwi.");
4947 unwi_name
= bfd_alloc (abfd
, amt
);
4951 strcpy (stpcpy (unwi_name
, ".gnu.linkonce.ia64unwi."), name
);
4952 unwi
= bfd_get_section_by_name (abfd
, unwi_name
);
4954 amt
= strlen (name
) + sizeof (".gnu.linkonce.ia64unw.");
4955 unw_name
= bfd_alloc (abfd
, amt
);
4959 strcpy (stpcpy (unw_name
, ".gnu.linkonce.ia64unw."), name
);
4960 unw
= bfd_get_section_by_name (abfd
, unw_name
);
4962 /* We need to create a fake group section for it and its
4964 group
= bfd_make_section_anyway_with_flags (abfd
, name
,
4969 /* Move the fake group section to the beginning. */
4970 bfd_section_list_remove (abfd
, group
);
4971 bfd_section_list_prepend (abfd
, group
);
4973 elf_next_in_group (group
) = sec
;
4975 elf_group_name (sec
) = name
;
4976 elf_next_in_group (sec
) = sec
;
4977 elf_sec_group (sec
) = group
;
4981 elf_group_name (unwi
) = name
;
4982 elf_next_in_group (unwi
) = sec
;
4983 elf_next_in_group (sec
) = unwi
;
4984 elf_sec_group (unwi
) = group
;
4989 elf_group_name (unw
) = name
;
4992 elf_next_in_group (unw
) = elf_next_in_group (unwi
);
4993 elf_next_in_group (unwi
) = unw
;
4997 elf_next_in_group (unw
) = sec
;
4998 elf_next_in_group (sec
) = unw
;
5000 elf_sec_group (unw
) = group
;
5003 /* Fake SHT_GROUP section header. */
5004 elf_section_data (group
)->this_hdr
.bfd_section
= group
;
5005 elf_section_data (group
)->this_hdr
.sh_type
= SHT_GROUP
;
5012 elfNN_ia64_hpux_vec (const bfd_target
*vec
)
5014 extern const bfd_target bfd_elfNN_ia64_hpux_big_vec
;
5015 return (vec
== & bfd_elfNN_ia64_hpux_big_vec
);
5019 elfNN_hpux_post_process_headers (abfd
, info
)
5021 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
5023 Elf_Internal_Ehdr
*i_ehdrp
= elf_elfheader (abfd
);
5025 i_ehdrp
->e_ident
[EI_OSABI
] = ELFOSABI_HPUX
;
5026 i_ehdrp
->e_ident
[EI_ABIVERSION
] = 1;
5030 elfNN_hpux_backend_section_from_bfd_section (abfd
, sec
, retval
)
5031 bfd
*abfd ATTRIBUTE_UNUSED
;
5035 if (bfd_is_com_section (sec
))
5037 *retval
= SHN_IA_64_ANSI_COMMON
;
5044 elfNN_hpux_backend_symbol_processing (bfd
*abfd ATTRIBUTE_UNUSED
,
5047 elf_symbol_type
*elfsym
= (elf_symbol_type
*) asym
;;
5049 switch (elfsym
->internal_elf_sym
.st_shndx
)
5051 case SHN_IA_64_ANSI_COMMON
:
5052 asym
->section
= bfd_com_section_ptr
;
5053 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
5054 asym
->flags
&= ~BSF_GLOBAL
;
5060 #define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
5061 #define TARGET_LITTLE_NAME "elfNN-ia64-little"
5062 #define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec
5063 #define TARGET_BIG_NAME "elfNN-ia64-big"
5064 #define ELF_ARCH bfd_arch_ia64
5065 #define ELF_MACHINE_CODE EM_IA_64
5066 #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
5067 #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
5068 #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
5070 #define elf_backend_section_from_shdr \
5071 elfNN_ia64_section_from_shdr
5072 #define elf_backend_section_flags \
5073 elfNN_ia64_section_flags
5074 #define elf_backend_fake_sections \
5075 elfNN_ia64_fake_sections
5076 #define elf_backend_final_write_processing \
5077 elfNN_ia64_final_write_processing
5078 #define elf_backend_add_symbol_hook \
5079 elfNN_ia64_add_symbol_hook
5080 #define elf_backend_additional_program_headers \
5081 elfNN_ia64_additional_program_headers
5082 #define elf_backend_modify_segment_map \
5083 elfNN_ia64_modify_segment_map
5084 #define elf_info_to_howto \
5085 elfNN_ia64_info_to_howto
5087 #define bfd_elfNN_bfd_reloc_type_lookup \
5088 elfNN_ia64_reloc_type_lookup
5089 #define bfd_elfNN_bfd_is_local_label_name \
5090 elfNN_ia64_is_local_label_name
5091 #define bfd_elfNN_bfd_relax_section \
5092 elfNN_ia64_relax_section
5094 #define elf_backend_object_p \
5097 /* Stuff for the BFD linker: */
5098 #define bfd_elfNN_bfd_link_hash_table_create \
5099 elfNN_ia64_hash_table_create
5100 #define bfd_elfNN_bfd_link_hash_table_free \
5101 elfNN_ia64_hash_table_free
5102 #define elf_backend_create_dynamic_sections \
5103 elfNN_ia64_create_dynamic_sections
5104 #define elf_backend_check_relocs \
5105 elfNN_ia64_check_relocs
5106 #define elf_backend_adjust_dynamic_symbol \
5107 elfNN_ia64_adjust_dynamic_symbol
5108 #define elf_backend_size_dynamic_sections \
5109 elfNN_ia64_size_dynamic_sections
5110 #define elf_backend_relocate_section \
5111 elfNN_ia64_relocate_section
5112 #define elf_backend_finish_dynamic_symbol \
5113 elfNN_ia64_finish_dynamic_symbol
5114 #define elf_backend_finish_dynamic_sections \
5115 elfNN_ia64_finish_dynamic_sections
5116 #define bfd_elfNN_bfd_final_link \
5117 elfNN_ia64_final_link
5119 #define bfd_elfNN_bfd_merge_private_bfd_data \
5120 elfNN_ia64_merge_private_bfd_data
5121 #define bfd_elfNN_bfd_set_private_flags \
5122 elfNN_ia64_set_private_flags
5123 #define bfd_elfNN_bfd_print_private_bfd_data \
5124 elfNN_ia64_print_private_bfd_data
5126 #define elf_backend_plt_readonly 1
5127 #define elf_backend_want_plt_sym 0
5128 #define elf_backend_plt_alignment 5
5129 #define elf_backend_got_header_size 0
5130 #define elf_backend_want_got_plt 1
5131 #define elf_backend_may_use_rel_p 1
5132 #define elf_backend_may_use_rela_p 1
5133 #define elf_backend_default_use_rela_p 1
5134 #define elf_backend_want_dynbss 0
5135 #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
5136 #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
5137 #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
5138 #define elf_backend_rela_normal 1
5139 #define elf_backend_special_sections elfNN_ia64_special_sections
5141 /* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with
5142 SHF_LINK_ORDER. But it doesn't set theh sh_link or sh_info fields.
5143 We don't want to flood users with so many error messages. We turn
5144 off the warning for now. It will be turned on later when the Intel
5145 compiler is fixed. */
5146 #define elf_backend_link_order_error_handler NULL
5148 #include "elfNN-target.h"
5150 /* HPUX-specific vectors. */
5152 #undef TARGET_LITTLE_SYM
5153 #undef TARGET_LITTLE_NAME
5154 #undef TARGET_BIG_SYM
5155 #define TARGET_BIG_SYM bfd_elfNN_ia64_hpux_big_vec
5156 #undef TARGET_BIG_NAME
5157 #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
5159 /* These are HP-UX specific functions. */
5161 #undef elf_backend_post_process_headers
5162 #define elf_backend_post_process_headers elfNN_hpux_post_process_headers
5164 #undef elf_backend_section_from_bfd_section
5165 #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
5167 #undef elf_backend_symbol_processing
5168 #define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
5170 #undef elf_backend_want_p_paddr_set_to_zero
5171 #define elf_backend_want_p_paddr_set_to_zero 1
5173 #undef ELF_MAXPAGESIZE
5174 #define ELF_MAXPAGESIZE 0x1000 /* 1K */
5177 #define elfNN_bed elfNN_ia64_hpux_bed
5179 #include "elfNN-target.h"
5181 #undef elf_backend_want_p_paddr_set_to_zero