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
;
175 bfd_boolean only_got
;
178 #define elfNN_ia64_hash_table(p) \
179 ((struct elfNN_ia64_link_hash_table *) ((p)->hash))
181 static bfd_reloc_status_type elfNN_ia64_reloc
182 PARAMS ((bfd
*abfd
, arelent
*reloc
, asymbol
*sym
, PTR data
,
183 asection
*input_section
, bfd
*output_bfd
, char **error_message
));
184 static reloc_howto_type
* lookup_howto
185 PARAMS ((unsigned int rtype
));
186 static reloc_howto_type
*elfNN_ia64_reloc_type_lookup
187 PARAMS ((bfd
*abfd
, bfd_reloc_code_real_type bfd_code
));
188 static void elfNN_ia64_info_to_howto
189 PARAMS ((bfd
*abfd
, arelent
*bfd_reloc
, Elf_Internal_Rela
*elf_reloc
));
190 static bfd_boolean elfNN_ia64_relax_section
191 PARAMS((bfd
*abfd
, asection
*sec
, struct bfd_link_info
*link_info
,
192 bfd_boolean
*again
));
193 static void elfNN_ia64_relax_ldxmov
194 PARAMS((bfd_byte
*contents
, bfd_vma off
));
195 static bfd_boolean is_unwind_section_name
196 PARAMS ((bfd
*abfd
, const char *));
197 static bfd_boolean elfNN_ia64_section_flags
198 PARAMS ((flagword
*, const Elf_Internal_Shdr
*));
199 static bfd_boolean elfNN_ia64_fake_sections
200 PARAMS ((bfd
*abfd
, Elf_Internal_Shdr
*hdr
, asection
*sec
));
201 static void elfNN_ia64_final_write_processing
202 PARAMS ((bfd
*abfd
, bfd_boolean linker
));
203 static bfd_boolean elfNN_ia64_add_symbol_hook
204 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, Elf_Internal_Sym
*sym
,
205 const char **namep
, flagword
*flagsp
, asection
**secp
,
207 static int elfNN_ia64_additional_program_headers
208 PARAMS ((bfd
*abfd
));
209 static bfd_boolean elfNN_ia64_modify_segment_map
210 PARAMS ((bfd
*, struct bfd_link_info
*));
211 static bfd_boolean elfNN_ia64_is_local_label_name
212 PARAMS ((bfd
*abfd
, const char *name
));
213 static bfd_boolean elfNN_ia64_dynamic_symbol_p
214 PARAMS ((struct elf_link_hash_entry
*h
, struct bfd_link_info
*info
, int));
215 static struct bfd_hash_entry
*elfNN_ia64_new_elf_hash_entry
216 PARAMS ((struct bfd_hash_entry
*entry
, struct bfd_hash_table
*table
,
217 const char *string
));
218 static void elfNN_ia64_hash_copy_indirect
219 PARAMS ((const struct elf_backend_data
*, struct elf_link_hash_entry
*,
220 struct elf_link_hash_entry
*));
221 static void elfNN_ia64_hash_hide_symbol
222 PARAMS ((struct bfd_link_info
*, struct elf_link_hash_entry
*, bfd_boolean
));
223 static hashval_t elfNN_ia64_local_htab_hash
PARAMS ((const void *));
224 static int elfNN_ia64_local_htab_eq
PARAMS ((const void *ptr1
,
226 static struct bfd_link_hash_table
*elfNN_ia64_hash_table_create
227 PARAMS ((bfd
*abfd
));
228 static void elfNN_ia64_hash_table_free
229 PARAMS ((struct bfd_link_hash_table
*hash
));
230 static bfd_boolean elfNN_ia64_global_dyn_sym_thunk
231 PARAMS ((struct bfd_hash_entry
*, PTR
));
232 static int elfNN_ia64_local_dyn_sym_thunk
233 PARAMS ((void **, PTR
));
234 static void elfNN_ia64_dyn_sym_traverse
235 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
236 bfd_boolean (*func
) (struct elfNN_ia64_dyn_sym_info
*, PTR
),
238 static bfd_boolean elfNN_ia64_create_dynamic_sections
239 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
240 static struct elfNN_ia64_local_hash_entry
* get_local_sym_hash
241 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
242 bfd
*abfd
, const Elf_Internal_Rela
*rel
, bfd_boolean create
));
243 static struct elfNN_ia64_dyn_sym_info
* get_dyn_sym_info
244 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
245 struct elf_link_hash_entry
*h
,
246 bfd
*abfd
, const Elf_Internal_Rela
*rel
, bfd_boolean create
));
247 static asection
*get_got
248 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
249 struct elfNN_ia64_link_hash_table
*ia64_info
));
250 static asection
*get_fptr
251 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
252 struct elfNN_ia64_link_hash_table
*ia64_info
));
253 static asection
*get_pltoff
254 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
255 struct elfNN_ia64_link_hash_table
*ia64_info
));
256 static asection
*get_reloc_section
257 PARAMS ((bfd
*abfd
, struct elfNN_ia64_link_hash_table
*ia64_info
,
258 asection
*sec
, bfd_boolean create
));
259 static bfd_boolean elfNN_ia64_check_relocs
260 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
261 const Elf_Internal_Rela
*relocs
));
262 static bfd_boolean elfNN_ia64_adjust_dynamic_symbol
263 PARAMS ((struct bfd_link_info
*info
, struct elf_link_hash_entry
*h
));
264 static long global_sym_index
265 PARAMS ((struct elf_link_hash_entry
*h
));
266 static bfd_boolean allocate_fptr
267 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
268 static bfd_boolean allocate_global_data_got
269 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
270 static bfd_boolean allocate_global_fptr_got
271 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
272 static bfd_boolean allocate_local_got
273 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
274 static bfd_boolean allocate_pltoff_entries
275 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
276 static bfd_boolean allocate_plt_entries
277 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
278 static bfd_boolean allocate_plt2_entries
279 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
280 static bfd_boolean allocate_dynrel_entries
281 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
282 static bfd_boolean elfNN_ia64_size_dynamic_sections
283 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
));
284 static bfd_reloc_status_type elfNN_ia64_install_value
285 PARAMS ((bfd_byte
*hit_addr
, bfd_vma val
, unsigned int r_type
));
286 static void elfNN_ia64_install_dyn_reloc
287 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
288 asection
*srel
, bfd_vma offset
, unsigned int type
,
289 long dynindx
, bfd_vma addend
));
290 static bfd_vma set_got_entry
291 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
292 struct elfNN_ia64_dyn_sym_info
*dyn_i
, long dynindx
,
293 bfd_vma addend
, bfd_vma value
, unsigned int dyn_r_type
));
294 static bfd_vma set_fptr_entry
295 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
296 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
298 static bfd_vma set_pltoff_entry
299 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
300 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
301 bfd_vma value
, bfd_boolean
));
302 static bfd_vma elfNN_ia64_tprel_base
303 PARAMS ((struct bfd_link_info
*info
));
304 static bfd_vma elfNN_ia64_dtprel_base
305 PARAMS ((struct bfd_link_info
*info
));
306 static int elfNN_ia64_unwind_entry_compare
307 PARAMS ((const PTR
, const PTR
));
308 static bfd_boolean elfNN_ia64_choose_gp
309 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
310 static bfd_boolean elfNN_ia64_final_link
311 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
312 static bfd_boolean elfNN_ia64_relocate_section
313 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
, bfd
*input_bfd
,
314 asection
*input_section
, bfd_byte
*contents
,
315 Elf_Internal_Rela
*relocs
, Elf_Internal_Sym
*local_syms
,
316 asection
**local_sections
));
317 static bfd_boolean elfNN_ia64_finish_dynamic_symbol
318 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
,
319 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*sym
));
320 static bfd_boolean elfNN_ia64_finish_dynamic_sections
321 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
322 static bfd_boolean elfNN_ia64_set_private_flags
323 PARAMS ((bfd
*abfd
, flagword flags
));
324 static bfd_boolean elfNN_ia64_merge_private_bfd_data
325 PARAMS ((bfd
*ibfd
, bfd
*obfd
));
326 static bfd_boolean elfNN_ia64_print_private_bfd_data
327 PARAMS ((bfd
*abfd
, PTR ptr
));
328 static enum elf_reloc_type_class elfNN_ia64_reloc_type_class
329 PARAMS ((const Elf_Internal_Rela
*));
330 static bfd_boolean elfNN_ia64_hpux_vec
331 PARAMS ((const bfd_target
*vec
));
332 static void elfNN_hpux_post_process_headers
333 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
334 bfd_boolean elfNN_hpux_backend_section_from_bfd_section
335 PARAMS ((bfd
*abfd
, asection
*sec
, int *retval
));
337 /* ia64-specific relocation. */
339 /* Perform a relocation. Not much to do here as all the hard work is
340 done in elfNN_ia64_final_link_relocate. */
341 static bfd_reloc_status_type
342 elfNN_ia64_reloc (abfd
, reloc
, sym
, data
, input_section
,
343 output_bfd
, error_message
)
344 bfd
*abfd ATTRIBUTE_UNUSED
;
346 asymbol
*sym ATTRIBUTE_UNUSED
;
347 PTR data ATTRIBUTE_UNUSED
;
348 asection
*input_section
;
350 char **error_message
;
354 reloc
->address
+= input_section
->output_offset
;
358 if (input_section
->flags
& SEC_DEBUGGING
)
359 return bfd_reloc_continue
;
361 *error_message
= "Unsupported call to elfNN_ia64_reloc";
362 return bfd_reloc_notsupported
;
365 #define IA64_HOWTO(TYPE, NAME, SIZE, PCREL, IN) \
366 HOWTO (TYPE, 0, SIZE, 0, PCREL, 0, complain_overflow_signed, \
367 elfNN_ia64_reloc, NAME, FALSE, 0, -1, IN)
369 /* This table has to be sorted according to increasing number of the
371 static reloc_howto_type ia64_howto_table
[] =
373 IA64_HOWTO (R_IA64_NONE
, "NONE", 0, FALSE
, TRUE
),
375 IA64_HOWTO (R_IA64_IMM14
, "IMM14", 0, FALSE
, TRUE
),
376 IA64_HOWTO (R_IA64_IMM22
, "IMM22", 0, FALSE
, TRUE
),
377 IA64_HOWTO (R_IA64_IMM64
, "IMM64", 0, FALSE
, TRUE
),
378 IA64_HOWTO (R_IA64_DIR32MSB
, "DIR32MSB", 2, FALSE
, TRUE
),
379 IA64_HOWTO (R_IA64_DIR32LSB
, "DIR32LSB", 2, FALSE
, TRUE
),
380 IA64_HOWTO (R_IA64_DIR64MSB
, "DIR64MSB", 4, FALSE
, TRUE
),
381 IA64_HOWTO (R_IA64_DIR64LSB
, "DIR64LSB", 4, FALSE
, TRUE
),
383 IA64_HOWTO (R_IA64_GPREL22
, "GPREL22", 0, FALSE
, TRUE
),
384 IA64_HOWTO (R_IA64_GPREL64I
, "GPREL64I", 0, FALSE
, TRUE
),
385 IA64_HOWTO (R_IA64_GPREL32MSB
, "GPREL32MSB", 2, FALSE
, TRUE
),
386 IA64_HOWTO (R_IA64_GPREL32LSB
, "GPREL32LSB", 2, FALSE
, TRUE
),
387 IA64_HOWTO (R_IA64_GPREL64MSB
, "GPREL64MSB", 4, FALSE
, TRUE
),
388 IA64_HOWTO (R_IA64_GPREL64LSB
, "GPREL64LSB", 4, FALSE
, TRUE
),
390 IA64_HOWTO (R_IA64_LTOFF22
, "LTOFF22", 0, FALSE
, TRUE
),
391 IA64_HOWTO (R_IA64_LTOFF64I
, "LTOFF64I", 0, FALSE
, TRUE
),
393 IA64_HOWTO (R_IA64_PLTOFF22
, "PLTOFF22", 0, FALSE
, TRUE
),
394 IA64_HOWTO (R_IA64_PLTOFF64I
, "PLTOFF64I", 0, FALSE
, TRUE
),
395 IA64_HOWTO (R_IA64_PLTOFF64MSB
, "PLTOFF64MSB", 4, FALSE
, TRUE
),
396 IA64_HOWTO (R_IA64_PLTOFF64LSB
, "PLTOFF64LSB", 4, FALSE
, TRUE
),
398 IA64_HOWTO (R_IA64_FPTR64I
, "FPTR64I", 0, FALSE
, TRUE
),
399 IA64_HOWTO (R_IA64_FPTR32MSB
, "FPTR32MSB", 2, FALSE
, TRUE
),
400 IA64_HOWTO (R_IA64_FPTR32LSB
, "FPTR32LSB", 2, FALSE
, TRUE
),
401 IA64_HOWTO (R_IA64_FPTR64MSB
, "FPTR64MSB", 4, FALSE
, TRUE
),
402 IA64_HOWTO (R_IA64_FPTR64LSB
, "FPTR64LSB", 4, FALSE
, TRUE
),
404 IA64_HOWTO (R_IA64_PCREL60B
, "PCREL60B", 0, TRUE
, TRUE
),
405 IA64_HOWTO (R_IA64_PCREL21B
, "PCREL21B", 0, TRUE
, TRUE
),
406 IA64_HOWTO (R_IA64_PCREL21M
, "PCREL21M", 0, TRUE
, TRUE
),
407 IA64_HOWTO (R_IA64_PCREL21F
, "PCREL21F", 0, TRUE
, TRUE
),
408 IA64_HOWTO (R_IA64_PCREL32MSB
, "PCREL32MSB", 2, TRUE
, TRUE
),
409 IA64_HOWTO (R_IA64_PCREL32LSB
, "PCREL32LSB", 2, TRUE
, TRUE
),
410 IA64_HOWTO (R_IA64_PCREL64MSB
, "PCREL64MSB", 4, TRUE
, TRUE
),
411 IA64_HOWTO (R_IA64_PCREL64LSB
, "PCREL64LSB", 4, TRUE
, TRUE
),
413 IA64_HOWTO (R_IA64_LTOFF_FPTR22
, "LTOFF_FPTR22", 0, FALSE
, TRUE
),
414 IA64_HOWTO (R_IA64_LTOFF_FPTR64I
, "LTOFF_FPTR64I", 0, FALSE
, TRUE
),
415 IA64_HOWTO (R_IA64_LTOFF_FPTR32MSB
, "LTOFF_FPTR32MSB", 2, FALSE
, TRUE
),
416 IA64_HOWTO (R_IA64_LTOFF_FPTR32LSB
, "LTOFF_FPTR32LSB", 2, FALSE
, TRUE
),
417 IA64_HOWTO (R_IA64_LTOFF_FPTR64MSB
, "LTOFF_FPTR64MSB", 4, FALSE
, TRUE
),
418 IA64_HOWTO (R_IA64_LTOFF_FPTR64LSB
, "LTOFF_FPTR64LSB", 4, FALSE
, TRUE
),
420 IA64_HOWTO (R_IA64_SEGREL32MSB
, "SEGREL32MSB", 2, FALSE
, TRUE
),
421 IA64_HOWTO (R_IA64_SEGREL32LSB
, "SEGREL32LSB", 2, FALSE
, TRUE
),
422 IA64_HOWTO (R_IA64_SEGREL64MSB
, "SEGREL64MSB", 4, FALSE
, TRUE
),
423 IA64_HOWTO (R_IA64_SEGREL64LSB
, "SEGREL64LSB", 4, FALSE
, TRUE
),
425 IA64_HOWTO (R_IA64_SECREL32MSB
, "SECREL32MSB", 2, FALSE
, TRUE
),
426 IA64_HOWTO (R_IA64_SECREL32LSB
, "SECREL32LSB", 2, FALSE
, TRUE
),
427 IA64_HOWTO (R_IA64_SECREL64MSB
, "SECREL64MSB", 4, FALSE
, TRUE
),
428 IA64_HOWTO (R_IA64_SECREL64LSB
, "SECREL64LSB", 4, FALSE
, TRUE
),
430 IA64_HOWTO (R_IA64_REL32MSB
, "REL32MSB", 2, FALSE
, TRUE
),
431 IA64_HOWTO (R_IA64_REL32LSB
, "REL32LSB", 2, FALSE
, TRUE
),
432 IA64_HOWTO (R_IA64_REL64MSB
, "REL64MSB", 4, FALSE
, TRUE
),
433 IA64_HOWTO (R_IA64_REL64LSB
, "REL64LSB", 4, FALSE
, TRUE
),
435 IA64_HOWTO (R_IA64_LTV32MSB
, "LTV32MSB", 2, FALSE
, TRUE
),
436 IA64_HOWTO (R_IA64_LTV32LSB
, "LTV32LSB", 2, FALSE
, TRUE
),
437 IA64_HOWTO (R_IA64_LTV64MSB
, "LTV64MSB", 4, FALSE
, TRUE
),
438 IA64_HOWTO (R_IA64_LTV64LSB
, "LTV64LSB", 4, FALSE
, TRUE
),
440 IA64_HOWTO (R_IA64_PCREL21BI
, "PCREL21BI", 0, TRUE
, TRUE
),
441 IA64_HOWTO (R_IA64_PCREL22
, "PCREL22", 0, TRUE
, TRUE
),
442 IA64_HOWTO (R_IA64_PCREL64I
, "PCREL64I", 0, TRUE
, TRUE
),
444 IA64_HOWTO (R_IA64_IPLTMSB
, "IPLTMSB", 4, FALSE
, TRUE
),
445 IA64_HOWTO (R_IA64_IPLTLSB
, "IPLTLSB", 4, FALSE
, TRUE
),
446 IA64_HOWTO (R_IA64_COPY
, "COPY", 4, FALSE
, TRUE
),
447 IA64_HOWTO (R_IA64_LTOFF22X
, "LTOFF22X", 0, FALSE
, TRUE
),
448 IA64_HOWTO (R_IA64_LDXMOV
, "LDXMOV", 0, FALSE
, TRUE
),
450 IA64_HOWTO (R_IA64_TPREL14
, "TPREL14", 0, FALSE
, FALSE
),
451 IA64_HOWTO (R_IA64_TPREL22
, "TPREL22", 0, FALSE
, FALSE
),
452 IA64_HOWTO (R_IA64_TPREL64I
, "TPREL64I", 0, FALSE
, FALSE
),
453 IA64_HOWTO (R_IA64_TPREL64MSB
, "TPREL64MSB", 4, FALSE
, FALSE
),
454 IA64_HOWTO (R_IA64_TPREL64LSB
, "TPREL64LSB", 4, FALSE
, FALSE
),
455 IA64_HOWTO (R_IA64_LTOFF_TPREL22
, "LTOFF_TPREL22", 0, FALSE
, FALSE
),
457 IA64_HOWTO (R_IA64_DTPMOD64MSB
, "DTPMOD64MSB", 4, FALSE
, FALSE
),
458 IA64_HOWTO (R_IA64_DTPMOD64LSB
, "DTPMOD64LSB", 4, FALSE
, FALSE
),
459 IA64_HOWTO (R_IA64_LTOFF_DTPMOD22
, "LTOFF_DTPMOD22", 0, FALSE
, FALSE
),
461 IA64_HOWTO (R_IA64_DTPREL14
, "DTPREL14", 0, FALSE
, FALSE
),
462 IA64_HOWTO (R_IA64_DTPREL22
, "DTPREL22", 0, FALSE
, FALSE
),
463 IA64_HOWTO (R_IA64_DTPREL64I
, "DTPREL64I", 0, FALSE
, FALSE
),
464 IA64_HOWTO (R_IA64_DTPREL32MSB
, "DTPREL32MSB", 2, FALSE
, FALSE
),
465 IA64_HOWTO (R_IA64_DTPREL32LSB
, "DTPREL32LSB", 2, FALSE
, FALSE
),
466 IA64_HOWTO (R_IA64_DTPREL64MSB
, "DTPREL64MSB", 4, FALSE
, FALSE
),
467 IA64_HOWTO (R_IA64_DTPREL64LSB
, "DTPREL64LSB", 4, FALSE
, FALSE
),
468 IA64_HOWTO (R_IA64_LTOFF_DTPREL22
, "LTOFF_DTPREL22", 0, FALSE
, FALSE
),
471 static unsigned char elf_code_to_howto_index
[R_IA64_MAX_RELOC_CODE
+ 1];
473 /* Given a BFD reloc type, return the matching HOWTO structure. */
475 static reloc_howto_type
*
479 static int inited
= 0;
486 memset (elf_code_to_howto_index
, 0xff, sizeof (elf_code_to_howto_index
));
487 for (i
= 0; i
< NELEMS (ia64_howto_table
); ++i
)
488 elf_code_to_howto_index
[ia64_howto_table
[i
].type
] = i
;
491 if (rtype
> R_IA64_MAX_RELOC_CODE
)
493 i
= elf_code_to_howto_index
[rtype
];
494 if (i
>= NELEMS (ia64_howto_table
))
496 return ia64_howto_table
+ i
;
499 static reloc_howto_type
*
500 elfNN_ia64_reloc_type_lookup (abfd
, bfd_code
)
501 bfd
*abfd ATTRIBUTE_UNUSED
;
502 bfd_reloc_code_real_type bfd_code
;
508 case BFD_RELOC_NONE
: rtype
= R_IA64_NONE
; break;
510 case BFD_RELOC_IA64_IMM14
: rtype
= R_IA64_IMM14
; break;
511 case BFD_RELOC_IA64_IMM22
: rtype
= R_IA64_IMM22
; break;
512 case BFD_RELOC_IA64_IMM64
: rtype
= R_IA64_IMM64
; break;
514 case BFD_RELOC_IA64_DIR32MSB
: rtype
= R_IA64_DIR32MSB
; break;
515 case BFD_RELOC_IA64_DIR32LSB
: rtype
= R_IA64_DIR32LSB
; break;
516 case BFD_RELOC_IA64_DIR64MSB
: rtype
= R_IA64_DIR64MSB
; break;
517 case BFD_RELOC_IA64_DIR64LSB
: rtype
= R_IA64_DIR64LSB
; break;
519 case BFD_RELOC_IA64_GPREL22
: rtype
= R_IA64_GPREL22
; break;
520 case BFD_RELOC_IA64_GPREL64I
: rtype
= R_IA64_GPREL64I
; break;
521 case BFD_RELOC_IA64_GPREL32MSB
: rtype
= R_IA64_GPREL32MSB
; break;
522 case BFD_RELOC_IA64_GPREL32LSB
: rtype
= R_IA64_GPREL32LSB
; break;
523 case BFD_RELOC_IA64_GPREL64MSB
: rtype
= R_IA64_GPREL64MSB
; break;
524 case BFD_RELOC_IA64_GPREL64LSB
: rtype
= R_IA64_GPREL64LSB
; break;
526 case BFD_RELOC_IA64_LTOFF22
: rtype
= R_IA64_LTOFF22
; break;
527 case BFD_RELOC_IA64_LTOFF64I
: rtype
= R_IA64_LTOFF64I
; break;
529 case BFD_RELOC_IA64_PLTOFF22
: rtype
= R_IA64_PLTOFF22
; break;
530 case BFD_RELOC_IA64_PLTOFF64I
: rtype
= R_IA64_PLTOFF64I
; break;
531 case BFD_RELOC_IA64_PLTOFF64MSB
: rtype
= R_IA64_PLTOFF64MSB
; break;
532 case BFD_RELOC_IA64_PLTOFF64LSB
: rtype
= R_IA64_PLTOFF64LSB
; break;
533 case BFD_RELOC_IA64_FPTR64I
: rtype
= R_IA64_FPTR64I
; break;
534 case BFD_RELOC_IA64_FPTR32MSB
: rtype
= R_IA64_FPTR32MSB
; break;
535 case BFD_RELOC_IA64_FPTR32LSB
: rtype
= R_IA64_FPTR32LSB
; break;
536 case BFD_RELOC_IA64_FPTR64MSB
: rtype
= R_IA64_FPTR64MSB
; break;
537 case BFD_RELOC_IA64_FPTR64LSB
: rtype
= R_IA64_FPTR64LSB
; break;
539 case BFD_RELOC_IA64_PCREL21B
: rtype
= R_IA64_PCREL21B
; break;
540 case BFD_RELOC_IA64_PCREL21BI
: rtype
= R_IA64_PCREL21BI
; break;
541 case BFD_RELOC_IA64_PCREL21M
: rtype
= R_IA64_PCREL21M
; break;
542 case BFD_RELOC_IA64_PCREL21F
: rtype
= R_IA64_PCREL21F
; break;
543 case BFD_RELOC_IA64_PCREL22
: rtype
= R_IA64_PCREL22
; break;
544 case BFD_RELOC_IA64_PCREL60B
: rtype
= R_IA64_PCREL60B
; break;
545 case BFD_RELOC_IA64_PCREL64I
: rtype
= R_IA64_PCREL64I
; break;
546 case BFD_RELOC_IA64_PCREL32MSB
: rtype
= R_IA64_PCREL32MSB
; break;
547 case BFD_RELOC_IA64_PCREL32LSB
: rtype
= R_IA64_PCREL32LSB
; break;
548 case BFD_RELOC_IA64_PCREL64MSB
: rtype
= R_IA64_PCREL64MSB
; break;
549 case BFD_RELOC_IA64_PCREL64LSB
: rtype
= R_IA64_PCREL64LSB
; break;
551 case BFD_RELOC_IA64_LTOFF_FPTR22
: rtype
= R_IA64_LTOFF_FPTR22
; break;
552 case BFD_RELOC_IA64_LTOFF_FPTR64I
: rtype
= R_IA64_LTOFF_FPTR64I
; break;
553 case BFD_RELOC_IA64_LTOFF_FPTR32MSB
: rtype
= R_IA64_LTOFF_FPTR32MSB
; break;
554 case BFD_RELOC_IA64_LTOFF_FPTR32LSB
: rtype
= R_IA64_LTOFF_FPTR32LSB
; break;
555 case BFD_RELOC_IA64_LTOFF_FPTR64MSB
: rtype
= R_IA64_LTOFF_FPTR64MSB
; break;
556 case BFD_RELOC_IA64_LTOFF_FPTR64LSB
: rtype
= R_IA64_LTOFF_FPTR64LSB
; break;
558 case BFD_RELOC_IA64_SEGREL32MSB
: rtype
= R_IA64_SEGREL32MSB
; break;
559 case BFD_RELOC_IA64_SEGREL32LSB
: rtype
= R_IA64_SEGREL32LSB
; break;
560 case BFD_RELOC_IA64_SEGREL64MSB
: rtype
= R_IA64_SEGREL64MSB
; break;
561 case BFD_RELOC_IA64_SEGREL64LSB
: rtype
= R_IA64_SEGREL64LSB
; break;
563 case BFD_RELOC_IA64_SECREL32MSB
: rtype
= R_IA64_SECREL32MSB
; break;
564 case BFD_RELOC_IA64_SECREL32LSB
: rtype
= R_IA64_SECREL32LSB
; break;
565 case BFD_RELOC_IA64_SECREL64MSB
: rtype
= R_IA64_SECREL64MSB
; break;
566 case BFD_RELOC_IA64_SECREL64LSB
: rtype
= R_IA64_SECREL64LSB
; break;
568 case BFD_RELOC_IA64_REL32MSB
: rtype
= R_IA64_REL32MSB
; break;
569 case BFD_RELOC_IA64_REL32LSB
: rtype
= R_IA64_REL32LSB
; break;
570 case BFD_RELOC_IA64_REL64MSB
: rtype
= R_IA64_REL64MSB
; break;
571 case BFD_RELOC_IA64_REL64LSB
: rtype
= R_IA64_REL64LSB
; break;
573 case BFD_RELOC_IA64_LTV32MSB
: rtype
= R_IA64_LTV32MSB
; break;
574 case BFD_RELOC_IA64_LTV32LSB
: rtype
= R_IA64_LTV32LSB
; break;
575 case BFD_RELOC_IA64_LTV64MSB
: rtype
= R_IA64_LTV64MSB
; break;
576 case BFD_RELOC_IA64_LTV64LSB
: rtype
= R_IA64_LTV64LSB
; break;
578 case BFD_RELOC_IA64_IPLTMSB
: rtype
= R_IA64_IPLTMSB
; break;
579 case BFD_RELOC_IA64_IPLTLSB
: rtype
= R_IA64_IPLTLSB
; break;
580 case BFD_RELOC_IA64_COPY
: rtype
= R_IA64_COPY
; break;
581 case BFD_RELOC_IA64_LTOFF22X
: rtype
= R_IA64_LTOFF22X
; break;
582 case BFD_RELOC_IA64_LDXMOV
: rtype
= R_IA64_LDXMOV
; break;
584 case BFD_RELOC_IA64_TPREL14
: rtype
= R_IA64_TPREL14
; break;
585 case BFD_RELOC_IA64_TPREL22
: rtype
= R_IA64_TPREL22
; break;
586 case BFD_RELOC_IA64_TPREL64I
: rtype
= R_IA64_TPREL64I
; break;
587 case BFD_RELOC_IA64_TPREL64MSB
: rtype
= R_IA64_TPREL64MSB
; break;
588 case BFD_RELOC_IA64_TPREL64LSB
: rtype
= R_IA64_TPREL64LSB
; break;
589 case BFD_RELOC_IA64_LTOFF_TPREL22
: rtype
= R_IA64_LTOFF_TPREL22
; break;
591 case BFD_RELOC_IA64_DTPMOD64MSB
: rtype
= R_IA64_DTPMOD64MSB
; break;
592 case BFD_RELOC_IA64_DTPMOD64LSB
: rtype
= R_IA64_DTPMOD64LSB
; break;
593 case BFD_RELOC_IA64_LTOFF_DTPMOD22
: rtype
= R_IA64_LTOFF_DTPMOD22
; break;
595 case BFD_RELOC_IA64_DTPREL14
: rtype
= R_IA64_DTPREL14
; break;
596 case BFD_RELOC_IA64_DTPREL22
: rtype
= R_IA64_DTPREL22
; break;
597 case BFD_RELOC_IA64_DTPREL64I
: rtype
= R_IA64_DTPREL64I
; break;
598 case BFD_RELOC_IA64_DTPREL32MSB
: rtype
= R_IA64_DTPREL32MSB
; break;
599 case BFD_RELOC_IA64_DTPREL32LSB
: rtype
= R_IA64_DTPREL32LSB
; break;
600 case BFD_RELOC_IA64_DTPREL64MSB
: rtype
= R_IA64_DTPREL64MSB
; break;
601 case BFD_RELOC_IA64_DTPREL64LSB
: rtype
= R_IA64_DTPREL64LSB
; break;
602 case BFD_RELOC_IA64_LTOFF_DTPREL22
: rtype
= R_IA64_LTOFF_DTPREL22
; break;
606 return lookup_howto (rtype
);
609 /* Given a ELF reloc, return the matching HOWTO structure. */
612 elfNN_ia64_info_to_howto (abfd
, bfd_reloc
, elf_reloc
)
613 bfd
*abfd ATTRIBUTE_UNUSED
;
615 Elf_Internal_Rela
*elf_reloc
;
618 = lookup_howto ((unsigned int) ELFNN_R_TYPE (elf_reloc
->r_info
));
621 #define PLT_HEADER_SIZE (3 * 16)
622 #define PLT_MIN_ENTRY_SIZE (1 * 16)
623 #define PLT_FULL_ENTRY_SIZE (2 * 16)
624 #define PLT_RESERVED_WORDS 3
626 static const bfd_byte plt_header
[PLT_HEADER_SIZE
] =
628 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
629 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
630 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
631 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
632 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
633 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
634 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
635 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
636 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
639 static const bfd_byte plt_min_entry
[PLT_MIN_ENTRY_SIZE
] =
641 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
642 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
643 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
646 static const bfd_byte plt_full_entry
[PLT_FULL_ENTRY_SIZE
] =
648 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
649 0x00, 0x41, 0x3c, 0x70, 0x29, 0xc0, /* ld8.acq r16=[r15],8*/
650 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
651 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
652 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
653 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
656 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
658 static const bfd_byte oor_brl
[16] =
660 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
661 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
662 0x00, 0x00, 0x00, 0xc0
665 static const bfd_byte oor_ip
[48] =
667 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
668 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
669 0x01, 0x00, 0x00, 0x60,
670 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
671 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
672 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
673 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
674 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
675 0x60, 0x00, 0x80, 0x00 /* br b6;; */
678 static size_t oor_branch_size
= sizeof (oor_brl
);
681 bfd_elfNN_ia64_after_parse (int itanium
)
683 oor_branch_size
= itanium
? sizeof (oor_ip
) : sizeof (oor_brl
);
686 #define BTYPE_SHIFT 6
693 #define OPCODE_SHIFT 37
695 #define OPCODE_BITS (0xfLL << OPCODE_SHIFT)
696 #define X6_BITS (0x3fLL << X6_SHIFT)
697 #define X4_BITS (0xfLL << X4_SHIFT)
698 #define X3_BITS (0x7LL << X3_SHIFT)
699 #define X2_BITS (0x3LL << X2_SHIFT)
700 #define X_BITS (0x1LL << X_SHIFT)
701 #define Y_BITS (0x1LL << Y_SHIFT)
702 #define BTYPE_BITS (0x7LL << BTYPE_SHIFT)
703 #define PREDICATE_BITS (0x3fLL)
705 #define IS_NOP_B(i) \
706 (((i) & (OPCODE_BITS | X6_BITS)) == (2LL << OPCODE_SHIFT))
707 #define IS_NOP_F(i) \
708 (((i) & (OPCODE_BITS | X_BITS | X6_BITS | Y_BITS)) \
709 == (0x1LL << X6_SHIFT))
710 #define IS_NOP_I(i) \
711 (((i) & (OPCODE_BITS | X3_BITS | X6_BITS | Y_BITS)) \
712 == (0x1LL << X6_SHIFT))
713 #define IS_NOP_M(i) \
714 (((i) & (OPCODE_BITS | X3_BITS | X2_BITS | X4_BITS | Y_BITS)) \
715 == (0x1LL << X4_SHIFT))
716 #define IS_BR_COND(i) \
717 (((i) & (OPCODE_BITS | BTYPE_BITS)) == (0x4LL << OPCODE_SHIFT))
718 #define IS_BR_CALL(i) \
719 (((i) & OPCODE_BITS) == (0x5LL << OPCODE_SHIFT))
722 elfNN_ia64_relax_br (bfd_byte
*contents
, bfd_vma off
)
724 unsigned int template, mlx
;
725 bfd_vma t0
, t1
, s0
, s1
, s2
, br_code
;
729 hit_addr
= (bfd_byte
*) (contents
+ off
);
730 br_slot
= (long) hit_addr
& 0x3;
732 t0
= bfd_getl64 (hit_addr
+ 0);
733 t1
= bfd_getl64 (hit_addr
+ 8);
735 /* Check if we can turn br into brl. A label is always at the start
736 of the bundle. Even if there are predicates on NOPs, we still
737 perform this optimization. */
738 template = t0
& 0x1e;
739 s0
= (t0
>> 5) & 0x1ffffffffffLL
;
740 s1
= ((t0
>> 46) | (t1
<< 18)) & 0x1ffffffffffLL
;
741 s2
= (t1
>> 23) & 0x1ffffffffffLL
;
745 /* Check if slot 1 and slot 2 are NOPs. Possible template is
746 BBB. We only need to check nop.b. */
747 if (!(IS_NOP_B (s1
) && IS_NOP_B (s2
)))
752 /* Check if slot 2 is NOP. Possible templates are MBB and BBB.
753 For BBB, slot 0 also has to be nop.b. */
754 if (!((template == 0x12 /* MBB */
756 || (template == 0x16 /* BBB */
763 /* Check if slot 1 is NOP. Possible templates are MIB, MBB, BBB,
764 MMB and MFB. For BBB, slot 0 also has to be nop.b. */
765 if (!((template == 0x10 /* MIB */
767 || (template == 0x12 /* MBB */
769 || (template == 0x16 /* BBB */
772 || (template == 0x18 /* MMB */
774 || (template == 0x1c /* MFB */
780 /* It should never happen. */
784 /* We can turn br.cond/br.call into brl.cond/brl.call. */
785 if (!(IS_BR_COND (br_code
) || IS_BR_CALL (br_code
)))
788 /* Turn br into brl by setting bit 40. */
789 br_code
|= 0x1LL
<< 40;
791 /* Turn the old bundle into a MLX bundle with the same stop-bit
798 if (template == 0x16)
800 /* For BBB, we need to put nop.m in slot 0. We keep the original
801 predicate only if slot 0 isn't br. */
805 t0
&= PREDICATE_BITS
<< 5;
806 t0
|= 0x1LL
<< (X4_SHIFT
+ 5);
810 /* Keep the original instruction in slot 0. */
811 t0
&= 0x1ffffffffffLL
<< 5;
816 /* Put brl in slot 1. */
819 bfd_putl64 (t0
, hit_addr
);
820 bfd_putl64 (t1
, hit_addr
+ 8);
825 elfNN_ia64_relax_brl (bfd_byte
*contents
, bfd_vma off
)
829 bfd_vma t0
, t1
, i0
, i1
, i2
;
831 hit_addr
= (bfd_byte
*) (contents
+ off
);
832 hit_addr
-= (long) hit_addr
& 0x3;
833 t0
= bfd_getl64 (hit_addr
);
834 t1
= bfd_getl64 (hit_addr
+ 8);
836 /* Keep the instruction in slot 0. */
837 i0
= (t0
>> 5) & 0x1ffffffffffLL
;
838 /* Use nop.b for slot 1. */
840 /* For slot 2, turn brl into br by masking out bit 40. */
841 i2
= (t1
>> 23) & 0x0ffffffffffLL
;
843 /* Turn a MLX bundle into a MBB bundle with the same stop-bit
849 t0
= (i1
<< 46) | (i0
<< 5) | template;
850 t1
= (i2
<< 23) | (i1
>> 18);
852 bfd_putl64 (t0
, hit_addr
);
853 bfd_putl64 (t1
, hit_addr
+ 8);
856 /* These functions do relaxation for IA-64 ELF. */
859 elfNN_ia64_relax_section (abfd
, sec
, link_info
, again
)
862 struct bfd_link_info
*link_info
;
867 struct one_fixup
*next
;
873 Elf_Internal_Shdr
*symtab_hdr
;
874 Elf_Internal_Rela
*internal_relocs
;
875 Elf_Internal_Rela
*irel
, *irelend
;
877 Elf_Internal_Sym
*isymbuf
= NULL
;
878 struct elfNN_ia64_link_hash_table
*ia64_info
;
879 struct one_fixup
*fixups
= NULL
;
880 bfd_boolean changed_contents
= FALSE
;
881 bfd_boolean changed_relocs
= FALSE
;
882 bfd_boolean changed_got
= FALSE
;
885 /* Assume we're not going to change any sizes, and we'll only need
889 /* Don't even try to relax for non-ELF outputs. */
890 if (!is_elf_hash_table (link_info
->hash
))
893 /* Nothing to do if there are no relocations or there is no need for
894 the relax finalize pass. */
895 if ((sec
->flags
& SEC_RELOC
) == 0
896 || sec
->reloc_count
== 0
897 || (!link_info
->need_relax_finalize
898 && sec
->need_finalize_relax
== 0))
901 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
903 /* Load the relocations for this section. */
904 internal_relocs
= (_bfd_elf_link_read_relocs
905 (abfd
, sec
, (PTR
) NULL
, (Elf_Internal_Rela
*) NULL
,
906 link_info
->keep_memory
));
907 if (internal_relocs
== NULL
)
910 ia64_info
= elfNN_ia64_hash_table (link_info
);
911 irelend
= internal_relocs
+ sec
->reloc_count
;
913 /* Get the section contents. */
914 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
915 contents
= elf_section_data (sec
)->this_hdr
.contents
;
918 if (!bfd_malloc_and_get_section (abfd
, sec
, &contents
))
922 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
924 unsigned long r_type
= ELFNN_R_TYPE (irel
->r_info
);
925 bfd_vma symaddr
, reladdr
, trampoff
, toff
, roff
;
929 bfd_boolean is_branch
;
930 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
935 case R_IA64_PCREL21B
:
936 case R_IA64_PCREL21BI
:
937 case R_IA64_PCREL21M
:
938 case R_IA64_PCREL21F
:
939 /* In the finalize pass, all br relaxations are done. We can
941 if (!link_info
->need_relax_finalize
)
946 case R_IA64_PCREL60B
:
947 /* We can't optimize brl to br before the finalize pass since
948 br relaxations will increase the code size. Defer it to
949 the finalize pass. */
950 if (link_info
->need_relax_finalize
)
952 sec
->need_finalize_relax
= 1;
958 case R_IA64_LTOFF22X
:
960 /* We can't relax ldx/mov before the finalize pass since
961 br relaxations will increase the code size. Defer it to
962 the finalize pass. */
963 if (link_info
->need_relax_finalize
)
965 sec
->need_finalize_relax
= 1;
975 /* Get the value of the symbol referred to by the reloc. */
976 if (ELFNN_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
978 /* A local symbol. */
979 Elf_Internal_Sym
*isym
;
981 /* Read this BFD's local symbols. */
984 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
986 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
987 symtab_hdr
->sh_info
, 0,
993 isym
= isymbuf
+ ELFNN_R_SYM (irel
->r_info
);
994 if (isym
->st_shndx
== SHN_UNDEF
)
995 continue; /* We can't do anything with undefined symbols. */
996 else if (isym
->st_shndx
== SHN_ABS
)
997 tsec
= bfd_abs_section_ptr
;
998 else if (isym
->st_shndx
== SHN_COMMON
)
999 tsec
= bfd_com_section_ptr
;
1000 else if (isym
->st_shndx
== SHN_IA_64_ANSI_COMMON
)
1001 tsec
= bfd_com_section_ptr
;
1003 tsec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
1005 toff
= isym
->st_value
;
1006 dyn_i
= get_dyn_sym_info (ia64_info
, NULL
, abfd
, irel
, FALSE
);
1007 symtype
= ELF_ST_TYPE (isym
->st_info
);
1012 struct elf_link_hash_entry
*h
;
1014 indx
= ELFNN_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
1015 h
= elf_sym_hashes (abfd
)[indx
];
1016 BFD_ASSERT (h
!= NULL
);
1018 while (h
->root
.type
== bfd_link_hash_indirect
1019 || h
->root
.type
== bfd_link_hash_warning
)
1020 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1022 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, irel
, FALSE
);
1024 /* For branches to dynamic symbols, we're interested instead
1025 in a branch to the PLT entry. */
1026 if (is_branch
&& dyn_i
&& dyn_i
->want_plt2
)
1028 /* Internal branches shouldn't be sent to the PLT.
1029 Leave this for now and we'll give an error later. */
1030 if (r_type
!= R_IA64_PCREL21B
)
1033 tsec
= ia64_info
->plt_sec
;
1034 toff
= dyn_i
->plt2_offset
;
1035 BFD_ASSERT (irel
->r_addend
== 0);
1038 /* Can't do anything else with dynamic symbols. */
1039 else if (elfNN_ia64_dynamic_symbol_p (h
, link_info
, r_type
))
1044 /* We can't do anything with undefined symbols. */
1045 if (h
->root
.type
== bfd_link_hash_undefined
1046 || h
->root
.type
== bfd_link_hash_undefweak
)
1049 tsec
= h
->root
.u
.def
.section
;
1050 toff
= h
->root
.u
.def
.value
;
1056 if (tsec
->sec_info_type
== ELF_INFO_TYPE_MERGE
)
1058 /* At this stage in linking, no SEC_MERGE symbol has been
1059 adjusted, so all references to such symbols need to be
1060 passed through _bfd_merged_section_offset. (Later, in
1061 relocate_section, all SEC_MERGE symbols *except* for
1062 section symbols have been adjusted.)
1064 gas may reduce relocations against symbols in SEC_MERGE
1065 sections to a relocation against the section symbol when
1066 the original addend was zero. When the reloc is against
1067 a section symbol we should include the addend in the
1068 offset passed to _bfd_merged_section_offset, since the
1069 location of interest is the original symbol. On the
1070 other hand, an access to "sym+addend" where "sym" is not
1071 a section symbol should not include the addend; Such an
1072 access is presumed to be an offset from "sym"; The
1073 location of interest is just "sym". */
1074 if (symtype
== STT_SECTION
)
1075 toff
+= irel
->r_addend
;
1077 toff
= _bfd_merged_section_offset (abfd
, &tsec
,
1078 elf_section_data (tsec
)->sec_info
,
1081 if (symtype
!= STT_SECTION
)
1082 toff
+= irel
->r_addend
;
1085 toff
+= irel
->r_addend
;
1087 symaddr
= tsec
->output_section
->vma
+ tsec
->output_offset
+ toff
;
1089 roff
= irel
->r_offset
;
1093 bfd_signed_vma offset
;
1095 reladdr
= (sec
->output_section
->vma
1096 + sec
->output_offset
1097 + roff
) & (bfd_vma
) -4;
1099 /* If the branch is in range, no need to do anything. */
1100 if ((bfd_signed_vma
) (symaddr
- reladdr
) >= -0x1000000
1101 && (bfd_signed_vma
) (symaddr
- reladdr
) <= 0x0FFFFF0)
1103 /* If the 60-bit branch is in 21-bit range, optimize it. */
1104 if (r_type
== R_IA64_PCREL60B
)
1106 elfNN_ia64_relax_brl (contents
, roff
);
1109 = ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1112 /* If the original relocation offset points to slot
1113 1, change it to slot 2. */
1114 if ((irel
->r_offset
& 3) == 1)
1115 irel
->r_offset
+= 1;
1120 else if (r_type
== R_IA64_PCREL60B
)
1122 else if (elfNN_ia64_relax_br (contents
, roff
))
1125 = ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1128 /* Make the relocation offset point to slot 1. */
1129 irel
->r_offset
= (irel
->r_offset
& ~((bfd_vma
) 0x3)) + 1;
1133 /* We can't put a trampoline in a .init/.fini section. Issue
1135 if (strcmp (sec
->output_section
->name
, ".init") == 0
1136 || strcmp (sec
->output_section
->name
, ".fini") == 0)
1138 (*_bfd_error_handler
)
1139 (_("%B: Can't relax br at 0x%lx in section `%A'. Please use brl or indirect branch."),
1140 sec
->owner
, sec
, (unsigned long) roff
);
1141 bfd_set_error (bfd_error_bad_value
);
1145 /* If the branch and target are in the same section, you've
1146 got one honking big section and we can't help you unless
1147 you are branching backwards. You'll get an error message
1149 if (tsec
== sec
&& toff
> roff
)
1152 /* Look for an existing fixup to this address. */
1153 for (f
= fixups
; f
; f
= f
->next
)
1154 if (f
->tsec
== tsec
&& f
->toff
== toff
)
1159 /* Two alternatives: If it's a branch to a PLT entry, we can
1160 make a copy of the FULL_PLT entry. Otherwise, we'll have
1161 to use a `brl' insn to get where we're going. */
1165 if (tsec
== ia64_info
->plt_sec
)
1166 size
= sizeof (plt_full_entry
);
1168 size
= oor_branch_size
;
1170 /* Resize the current section to make room for the new branch. */
1171 trampoff
= (sec
->size
+ 15) & (bfd_vma
) -16;
1173 /* If trampoline is out of range, there is nothing we
1175 offset
= trampoff
- (roff
& (bfd_vma
) -4);
1176 if (offset
< -0x1000000 || offset
> 0x0FFFFF0)
1179 amt
= trampoff
+ size
;
1180 contents
= (bfd_byte
*) bfd_realloc (contents
, amt
);
1181 if (contents
== NULL
)
1185 if (tsec
== ia64_info
->plt_sec
)
1187 memcpy (contents
+ trampoff
, plt_full_entry
, size
);
1189 /* Hijack the old relocation for use as the PLTOFF reloc. */
1190 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1192 irel
->r_offset
= trampoff
;
1196 if (size
== sizeof (oor_ip
))
1198 memcpy (contents
+ trampoff
, oor_ip
, size
);
1199 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1201 irel
->r_addend
-= 16;
1202 irel
->r_offset
= trampoff
+ 2;
1206 memcpy (contents
+ trampoff
, oor_brl
, size
);
1207 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1209 irel
->r_offset
= trampoff
+ 2;
1214 /* Record the fixup so we don't do it again this section. */
1215 f
= (struct one_fixup
*)
1216 bfd_malloc ((bfd_size_type
) sizeof (*f
));
1220 f
->trampoff
= trampoff
;
1225 /* If trampoline is out of range, there is nothing we
1227 offset
= f
->trampoff
- (roff
& (bfd_vma
) -4);
1228 if (offset
< -0x1000000 || offset
> 0x0FFFFF0)
1231 /* Nop out the reloc, since we're finalizing things here. */
1232 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
1235 /* Fix up the existing branch to hit the trampoline. */
1236 if (elfNN_ia64_install_value (contents
+ roff
, offset
, r_type
)
1240 changed_contents
= TRUE
;
1241 changed_relocs
= TRUE
;
1248 bfd
*obfd
= sec
->output_section
->owner
;
1249 gp
= _bfd_get_gp_value (obfd
);
1252 if (!elfNN_ia64_choose_gp (obfd
, link_info
))
1254 gp
= _bfd_get_gp_value (obfd
);
1258 /* If the data is out of range, do nothing. */
1259 if ((bfd_signed_vma
) (symaddr
- gp
) >= 0x200000
1260 ||(bfd_signed_vma
) (symaddr
- gp
) < -0x200000)
1263 if (r_type
== R_IA64_LTOFF22X
)
1265 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
1267 changed_relocs
= TRUE
;
1268 if (dyn_i
->want_gotx
)
1270 dyn_i
->want_gotx
= 0;
1271 changed_got
|= !dyn_i
->want_got
;
1276 elfNN_ia64_relax_ldxmov (contents
, roff
);
1277 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
1278 changed_contents
= TRUE
;
1279 changed_relocs
= TRUE
;
1284 /* ??? If we created fixups, this may push the code segment large
1285 enough that the data segment moves, which will change the GP.
1286 Reset the GP so that we re-calculate next round. We need to
1287 do this at the _beginning_ of the next round; now will not do. */
1289 /* Clean up and go home. */
1292 struct one_fixup
*f
= fixups
;
1293 fixups
= fixups
->next
;
1298 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
1300 if (! link_info
->keep_memory
)
1304 /* Cache the symbols for elf_link_input_bfd. */
1305 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
1309 if (contents
!= NULL
1310 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
1312 if (!changed_contents
&& !link_info
->keep_memory
)
1316 /* Cache the section contents for elf_link_input_bfd. */
1317 elf_section_data (sec
)->this_hdr
.contents
= contents
;
1321 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
1323 if (!changed_relocs
)
1324 free (internal_relocs
);
1326 elf_section_data (sec
)->relocs
= internal_relocs
;
1331 struct elfNN_ia64_allocate_data data
;
1332 data
.info
= link_info
;
1334 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
1336 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
1337 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
1338 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
1339 ia64_info
->got_sec
->size
= data
.ofs
;
1341 if (ia64_info
->root
.dynamic_sections_created
1342 && ia64_info
->rel_got_sec
!= NULL
)
1344 /* Resize .rela.got. */
1345 ia64_info
->rel_got_sec
->size
= 0;
1346 if (link_info
->shared
1347 && ia64_info
->self_dtpmod_offset
!= (bfd_vma
) -1)
1348 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
1349 data
.only_got
= TRUE
;
1350 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_dynrel_entries
,
1355 if (!link_info
->need_relax_finalize
)
1356 sec
->need_finalize_relax
= 0;
1358 *again
= changed_contents
|| changed_relocs
;
1362 if (isymbuf
!= NULL
&& (unsigned char *) isymbuf
!= symtab_hdr
->contents
)
1364 if (contents
!= NULL
1365 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
1367 if (internal_relocs
!= NULL
1368 && elf_section_data (sec
)->relocs
!= internal_relocs
)
1369 free (internal_relocs
);
1374 elfNN_ia64_relax_ldxmov (contents
, off
)
1379 bfd_vma dword
, insn
;
1381 switch ((int)off
& 0x3)
1383 case 0: shift
= 5; break;
1384 case 1: shift
= 14; off
+= 3; break;
1385 case 2: shift
= 23; off
+= 6; break;
1390 dword
= bfd_getl64 (contents
+ off
);
1391 insn
= (dword
>> shift
) & 0x1ffffffffffLL
;
1393 r1
= (insn
>> 6) & 127;
1394 r3
= (insn
>> 20) & 127;
1396 insn
= 0x8000000; /* nop */
1398 insn
= (insn
& 0x7f01fff) | 0x10800000000LL
; /* (qp) mov r1 = r3 */
1400 dword
&= ~(0x1ffffffffffLL
<< shift
);
1401 dword
|= (insn
<< shift
);
1402 bfd_putl64 (dword
, contents
+ off
);
1405 /* Return TRUE if NAME is an unwind table section name. */
1407 static inline bfd_boolean
1408 is_unwind_section_name (abfd
, name
)
1412 size_t len1
, len2
, len3
;
1414 if (elfNN_ia64_hpux_vec (abfd
->xvec
)
1415 && !strcmp (name
, ELF_STRING_ia64_unwind_hdr
))
1418 len1
= sizeof (ELF_STRING_ia64_unwind
) - 1;
1419 len2
= sizeof (ELF_STRING_ia64_unwind_info
) - 1;
1420 len3
= sizeof (ELF_STRING_ia64_unwind_once
) - 1;
1421 return ((strncmp (name
, ELF_STRING_ia64_unwind
, len1
) == 0
1422 && strncmp (name
, ELF_STRING_ia64_unwind_info
, len2
) != 0)
1423 || strncmp (name
, ELF_STRING_ia64_unwind_once
, len3
) == 0);
1426 /* Handle an IA-64 specific section when reading an object file. This
1427 is called when bfd_section_from_shdr finds a section with an unknown
1431 elfNN_ia64_section_from_shdr (bfd
*abfd
,
1432 Elf_Internal_Shdr
*hdr
,
1438 /* There ought to be a place to keep ELF backend specific flags, but
1439 at the moment there isn't one. We just keep track of the
1440 sections by their name, instead. Fortunately, the ABI gives
1441 suggested names for all the MIPS specific sections, so we will
1442 probably get away with this. */
1443 switch (hdr
->sh_type
)
1445 case SHT_IA_64_UNWIND
:
1446 case SHT_IA_64_HP_OPT_ANOT
:
1450 if (strcmp (name
, ELF_STRING_ia64_archext
) != 0)
1458 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
, shindex
))
1460 newsect
= hdr
->bfd_section
;
1465 /* Convert IA-64 specific section flags to bfd internal section flags. */
1467 /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
1471 elfNN_ia64_section_flags (flags
, hdr
)
1473 const Elf_Internal_Shdr
*hdr
;
1475 if (hdr
->sh_flags
& SHF_IA_64_SHORT
)
1476 *flags
|= SEC_SMALL_DATA
;
1481 /* Set the correct type for an IA-64 ELF section. We do this by the
1482 section name, which is a hack, but ought to work. */
1485 elfNN_ia64_fake_sections (abfd
, hdr
, sec
)
1486 bfd
*abfd ATTRIBUTE_UNUSED
;
1487 Elf_Internal_Shdr
*hdr
;
1490 register const char *name
;
1492 name
= bfd_get_section_name (abfd
, sec
);
1494 if (is_unwind_section_name (abfd
, name
))
1496 /* We don't have the sections numbered at this point, so sh_info
1497 is set later, in elfNN_ia64_final_write_processing. */
1498 hdr
->sh_type
= SHT_IA_64_UNWIND
;
1499 hdr
->sh_flags
|= SHF_LINK_ORDER
;
1501 else if (strcmp (name
, ELF_STRING_ia64_archext
) == 0)
1502 hdr
->sh_type
= SHT_IA_64_EXT
;
1503 else if (strcmp (name
, ".HP.opt_annot") == 0)
1504 hdr
->sh_type
= SHT_IA_64_HP_OPT_ANOT
;
1505 else if (strcmp (name
, ".reloc") == 0)
1506 /* This is an ugly, but unfortunately necessary hack that is
1507 needed when producing EFI binaries on IA-64. It tells
1508 elf.c:elf_fake_sections() not to consider ".reloc" as a section
1509 containing ELF relocation info. We need this hack in order to
1510 be able to generate ELF binaries that can be translated into
1511 EFI applications (which are essentially COFF objects). Those
1512 files contain a COFF ".reloc" section inside an ELFNN object,
1513 which would normally cause BFD to segfault because it would
1514 attempt to interpret this section as containing relocation
1515 entries for section "oc". With this hack enabled, ".reloc"
1516 will be treated as a normal data section, which will avoid the
1517 segfault. However, you won't be able to create an ELFNN binary
1518 with a section named "oc" that needs relocations, but that's
1519 the kind of ugly side-effects you get when detecting section
1520 types based on their names... In practice, this limitation is
1521 unlikely to bite. */
1522 hdr
->sh_type
= SHT_PROGBITS
;
1524 if (sec
->flags
& SEC_SMALL_DATA
)
1525 hdr
->sh_flags
|= SHF_IA_64_SHORT
;
1530 /* The final processing done just before writing out an IA-64 ELF
1534 elfNN_ia64_final_write_processing (abfd
, linker
)
1536 bfd_boolean linker ATTRIBUTE_UNUSED
;
1538 Elf_Internal_Shdr
*hdr
;
1541 for (s
= abfd
->sections
; s
; s
= s
->next
)
1543 hdr
= &elf_section_data (s
)->this_hdr
;
1544 switch (hdr
->sh_type
)
1546 case SHT_IA_64_UNWIND
:
1547 /* The IA-64 processor-specific ABI requires setting sh_link
1548 to the unwind section, whereas HP-UX requires sh_info to
1549 do so. For maximum compatibility, we'll set both for
1551 hdr
->sh_info
= hdr
->sh_link
;
1556 if (! elf_flags_init (abfd
))
1558 unsigned long flags
= 0;
1560 if (abfd
->xvec
->byteorder
== BFD_ENDIAN_BIG
)
1561 flags
|= EF_IA_64_BE
;
1562 if (bfd_get_mach (abfd
) == bfd_mach_ia64_elf64
)
1563 flags
|= EF_IA_64_ABI64
;
1565 elf_elfheader(abfd
)->e_flags
= flags
;
1566 elf_flags_init (abfd
) = TRUE
;
1570 /* Hook called by the linker routine which adds symbols from an object
1571 file. We use it to put .comm items in .sbss, and not .bss. */
1574 elfNN_ia64_add_symbol_hook (abfd
, info
, sym
, namep
, flagsp
, secp
, valp
)
1576 struct bfd_link_info
*info
;
1577 Elf_Internal_Sym
*sym
;
1578 const char **namep ATTRIBUTE_UNUSED
;
1579 flagword
*flagsp ATTRIBUTE_UNUSED
;
1583 if (sym
->st_shndx
== SHN_COMMON
1584 && !info
->relocatable
1585 && sym
->st_size
<= elf_gp_size (abfd
))
1587 /* Common symbols less than or equal to -G nn bytes are
1588 automatically put into .sbss. */
1590 asection
*scomm
= bfd_get_section_by_name (abfd
, ".scommon");
1594 scomm
= bfd_make_section_with_flags (abfd
, ".scommon",
1597 | SEC_LINKER_CREATED
));
1603 *valp
= sym
->st_size
;
1609 /* Return the number of additional phdrs we will need. */
1612 elfNN_ia64_additional_program_headers (abfd
)
1618 /* See if we need a PT_IA_64_ARCHEXT segment. */
1619 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1620 if (s
&& (s
->flags
& SEC_LOAD
))
1623 /* Count how many PT_IA_64_UNWIND segments we need. */
1624 for (s
= abfd
->sections
; s
; s
= s
->next
)
1625 if (is_unwind_section_name (abfd
, s
->name
) && (s
->flags
& SEC_LOAD
))
1632 elfNN_ia64_modify_segment_map (abfd
, info
)
1634 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
1636 struct elf_segment_map
*m
, **pm
;
1637 Elf_Internal_Shdr
*hdr
;
1640 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1641 all PT_LOAD segments. */
1642 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1643 if (s
&& (s
->flags
& SEC_LOAD
))
1645 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1646 if (m
->p_type
== PT_IA_64_ARCHEXT
)
1650 m
= ((struct elf_segment_map
*)
1651 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1655 m
->p_type
= PT_IA_64_ARCHEXT
;
1659 /* We want to put it after the PHDR and INTERP segments. */
1660 pm
= &elf_tdata (abfd
)->segment_map
;
1662 && ((*pm
)->p_type
== PT_PHDR
1663 || (*pm
)->p_type
== PT_INTERP
))
1671 /* Install PT_IA_64_UNWIND segments, if needed. */
1672 for (s
= abfd
->sections
; s
; s
= s
->next
)
1674 hdr
= &elf_section_data (s
)->this_hdr
;
1675 if (hdr
->sh_type
!= SHT_IA_64_UNWIND
)
1678 if (s
&& (s
->flags
& SEC_LOAD
))
1680 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1681 if (m
->p_type
== PT_IA_64_UNWIND
)
1685 /* Look through all sections in the unwind segment
1686 for a match since there may be multiple sections
1688 for (i
= m
->count
- 1; i
>= 0; --i
)
1689 if (m
->sections
[i
] == s
)
1698 m
= ((struct elf_segment_map
*)
1699 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1703 m
->p_type
= PT_IA_64_UNWIND
;
1708 /* We want to put it last. */
1709 pm
= &elf_tdata (abfd
)->segment_map
;
1717 /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1718 the input sections for each output section in the segment and testing
1719 for SHF_IA_64_NORECOV on each. */
1720 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1721 if (m
->p_type
== PT_LOAD
)
1724 for (i
= m
->count
- 1; i
>= 0; --i
)
1726 struct bfd_link_order
*order
= m
->sections
[i
]->map_head
.link_order
;
1729 if (order
->type
== bfd_indirect_link_order
)
1731 asection
*is
= order
->u
.indirect
.section
;
1732 bfd_vma flags
= elf_section_data(is
)->this_hdr
.sh_flags
;
1733 if (flags
& SHF_IA_64_NORECOV
)
1735 m
->p_flags
|= PF_IA_64_NORECOV
;
1739 order
= order
->next
;
1748 /* According to the Tahoe assembler spec, all labels starting with a
1752 elfNN_ia64_is_local_label_name (abfd
, name
)
1753 bfd
*abfd ATTRIBUTE_UNUSED
;
1756 return name
[0] == '.';
1759 /* Should we do dynamic things to this symbol? */
1762 elfNN_ia64_dynamic_symbol_p (h
, info
, r_type
)
1763 struct elf_link_hash_entry
*h
;
1764 struct bfd_link_info
*info
;
1767 bfd_boolean ignore_protected
1768 = ((r_type
& 0xf8) == 0x40 /* FPTR relocs */
1769 || (r_type
& 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1771 return _bfd_elf_dynamic_symbol_p (h
, info
, ignore_protected
);
1774 static struct bfd_hash_entry
*
1775 elfNN_ia64_new_elf_hash_entry (entry
, table
, string
)
1776 struct bfd_hash_entry
*entry
;
1777 struct bfd_hash_table
*table
;
1780 struct elfNN_ia64_link_hash_entry
*ret
;
1781 ret
= (struct elfNN_ia64_link_hash_entry
*) entry
;
1783 /* Allocate the structure if it has not already been allocated by a
1786 ret
= bfd_hash_allocate (table
, sizeof (*ret
));
1791 /* Call the allocation method of the superclass. */
1792 ret
= ((struct elfNN_ia64_link_hash_entry
*)
1793 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
1797 return (struct bfd_hash_entry
*) ret
;
1801 elfNN_ia64_hash_copy_indirect (bed
, xdir
, xind
)
1802 const struct elf_backend_data
*bed ATTRIBUTE_UNUSED
;
1803 struct elf_link_hash_entry
*xdir
, *xind
;
1805 struct elfNN_ia64_link_hash_entry
*dir
, *ind
;
1807 dir
= (struct elfNN_ia64_link_hash_entry
*) xdir
;
1808 ind
= (struct elfNN_ia64_link_hash_entry
*) xind
;
1810 /* Copy down any references that we may have already seen to the
1811 symbol which just became indirect. */
1813 dir
->root
.ref_dynamic
|= ind
->root
.ref_dynamic
;
1814 dir
->root
.ref_regular
|= ind
->root
.ref_regular
;
1815 dir
->root
.ref_regular_nonweak
|= ind
->root
.ref_regular_nonweak
;
1816 dir
->root
.needs_plt
|= ind
->root
.needs_plt
;
1818 if (ind
->root
.root
.type
!= bfd_link_hash_indirect
)
1821 /* Copy over the got and plt data. This would have been done
1824 if (dir
->info
== NULL
)
1826 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1828 dir
->info
= dyn_i
= ind
->info
;
1831 /* Fix up the dyn_sym_info pointers to the global symbol. */
1832 for (; dyn_i
; dyn_i
= dyn_i
->next
)
1833 dyn_i
->h
= &dir
->root
;
1835 BFD_ASSERT (ind
->info
== NULL
);
1837 /* Copy over the dynindx. */
1839 if (dir
->root
.dynindx
== -1)
1841 dir
->root
.dynindx
= ind
->root
.dynindx
;
1842 dir
->root
.dynstr_index
= ind
->root
.dynstr_index
;
1843 ind
->root
.dynindx
= -1;
1844 ind
->root
.dynstr_index
= 0;
1846 BFD_ASSERT (ind
->root
.dynindx
== -1);
1850 elfNN_ia64_hash_hide_symbol (info
, xh
, force_local
)
1851 struct bfd_link_info
*info
;
1852 struct elf_link_hash_entry
*xh
;
1853 bfd_boolean force_local
;
1855 struct elfNN_ia64_link_hash_entry
*h
;
1856 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1858 h
= (struct elfNN_ia64_link_hash_entry
*)xh
;
1860 _bfd_elf_link_hash_hide_symbol (info
, &h
->root
, force_local
);
1862 for (dyn_i
= h
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1864 dyn_i
->want_plt2
= 0;
1865 dyn_i
->want_plt
= 0;
1869 /* Compute a hash of a local hash entry. */
1872 elfNN_ia64_local_htab_hash (ptr
)
1875 struct elfNN_ia64_local_hash_entry
*entry
1876 = (struct elfNN_ia64_local_hash_entry
*) ptr
;
1878 return (((entry
->id
& 0xff) << 24) | ((entry
->id
& 0xff00) << 8))
1879 ^ entry
->r_sym
^ (entry
->id
>> 16);
1882 /* Compare local hash entries. */
1885 elfNN_ia64_local_htab_eq (ptr1
, ptr2
)
1886 const void *ptr1
, *ptr2
;
1888 struct elfNN_ia64_local_hash_entry
*entry1
1889 = (struct elfNN_ia64_local_hash_entry
*) ptr1
;
1890 struct elfNN_ia64_local_hash_entry
*entry2
1891 = (struct elfNN_ia64_local_hash_entry
*) ptr2
;
1893 return entry1
->id
== entry2
->id
&& entry1
->r_sym
== entry2
->r_sym
;
1896 /* Create the derived linker hash table. The IA-64 ELF port uses this
1897 derived hash table to keep information specific to the IA-64 ElF
1898 linker (without using static variables). */
1900 static struct bfd_link_hash_table
*
1901 elfNN_ia64_hash_table_create (abfd
)
1904 struct elfNN_ia64_link_hash_table
*ret
;
1906 ret
= bfd_zmalloc ((bfd_size_type
) sizeof (*ret
));
1910 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
1911 elfNN_ia64_new_elf_hash_entry
))
1917 ret
->loc_hash_table
= htab_try_create (1024, elfNN_ia64_local_htab_hash
,
1918 elfNN_ia64_local_htab_eq
, NULL
);
1919 ret
->loc_hash_memory
= objalloc_create ();
1920 if (!ret
->loc_hash_table
|| !ret
->loc_hash_memory
)
1926 return &ret
->root
.root
;
1929 /* Destroy IA-64 linker hash table. */
1932 elfNN_ia64_hash_table_free (hash
)
1933 struct bfd_link_hash_table
*hash
;
1935 struct elfNN_ia64_link_hash_table
*ia64_info
1936 = (struct elfNN_ia64_link_hash_table
*) hash
;
1937 if (ia64_info
->loc_hash_table
)
1938 htab_delete (ia64_info
->loc_hash_table
);
1939 if (ia64_info
->loc_hash_memory
)
1940 objalloc_free ((struct objalloc
*) ia64_info
->loc_hash_memory
);
1941 _bfd_generic_link_hash_table_free (hash
);
1944 /* Traverse both local and global hash tables. */
1946 struct elfNN_ia64_dyn_sym_traverse_data
1948 bfd_boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1953 elfNN_ia64_global_dyn_sym_thunk (xentry
, xdata
)
1954 struct bfd_hash_entry
*xentry
;
1957 struct elfNN_ia64_link_hash_entry
*entry
1958 = (struct elfNN_ia64_link_hash_entry
*) xentry
;
1959 struct elfNN_ia64_dyn_sym_traverse_data
*data
1960 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1961 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1963 if (entry
->root
.root
.type
== bfd_link_hash_warning
)
1964 entry
= (struct elfNN_ia64_link_hash_entry
*) entry
->root
.root
.u
.i
.link
;
1966 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1967 if (! (*data
->func
) (dyn_i
, data
->data
))
1973 elfNN_ia64_local_dyn_sym_thunk (slot
, xdata
)
1977 struct elfNN_ia64_local_hash_entry
*entry
1978 = (struct elfNN_ia64_local_hash_entry
*) *slot
;
1979 struct elfNN_ia64_dyn_sym_traverse_data
*data
1980 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1981 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1983 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1984 if (! (*data
->func
) (dyn_i
, data
->data
))
1990 elfNN_ia64_dyn_sym_traverse (ia64_info
, func
, data
)
1991 struct elfNN_ia64_link_hash_table
*ia64_info
;
1992 bfd_boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1995 struct elfNN_ia64_dyn_sym_traverse_data xdata
;
2000 elf_link_hash_traverse (&ia64_info
->root
,
2001 elfNN_ia64_global_dyn_sym_thunk
, &xdata
);
2002 htab_traverse (ia64_info
->loc_hash_table
,
2003 elfNN_ia64_local_dyn_sym_thunk
, &xdata
);
2007 elfNN_ia64_create_dynamic_sections (abfd
, info
)
2009 struct bfd_link_info
*info
;
2011 struct elfNN_ia64_link_hash_table
*ia64_info
;
2014 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
2017 ia64_info
= elfNN_ia64_hash_table (info
);
2019 ia64_info
->plt_sec
= bfd_get_section_by_name (abfd
, ".plt");
2020 ia64_info
->got_sec
= bfd_get_section_by_name (abfd
, ".got");
2023 flagword flags
= bfd_get_section_flags (abfd
, ia64_info
->got_sec
);
2024 bfd_set_section_flags (abfd
, ia64_info
->got_sec
, SEC_SMALL_DATA
| flags
);
2025 /* The .got section is always aligned at 8 bytes. */
2026 bfd_set_section_alignment (abfd
, ia64_info
->got_sec
, 3);
2029 if (!get_pltoff (abfd
, info
, ia64_info
))
2032 s
= bfd_make_section_with_flags (abfd
, ".rela.IA_64.pltoff",
2033 (SEC_ALLOC
| SEC_LOAD
2036 | SEC_LINKER_CREATED
2039 || !bfd_set_section_alignment (abfd
, s
, LOG_SECTION_ALIGN
))
2041 ia64_info
->rel_pltoff_sec
= s
;
2043 s
= bfd_make_section_with_flags (abfd
, ".rela.got",
2044 (SEC_ALLOC
| SEC_LOAD
2047 | SEC_LINKER_CREATED
2050 || !bfd_set_section_alignment (abfd
, s
, LOG_SECTION_ALIGN
))
2052 ia64_info
->rel_got_sec
= s
;
2057 /* Find and/or create a hash entry for local symbol. */
2058 static struct elfNN_ia64_local_hash_entry
*
2059 get_local_sym_hash (ia64_info
, abfd
, rel
, create
)
2060 struct elfNN_ia64_link_hash_table
*ia64_info
;
2062 const Elf_Internal_Rela
*rel
;
2065 struct elfNN_ia64_local_hash_entry e
, *ret
;
2066 asection
*sec
= abfd
->sections
;
2067 hashval_t h
= (((sec
->id
& 0xff) << 24) | ((sec
->id
& 0xff00) << 8))
2068 ^ ELFNN_R_SYM (rel
->r_info
) ^ (sec
->id
>> 16);
2072 e
.r_sym
= ELFNN_R_SYM (rel
->r_info
);
2073 slot
= htab_find_slot_with_hash (ia64_info
->loc_hash_table
, &e
, h
,
2074 create
? INSERT
: NO_INSERT
);
2080 return (struct elfNN_ia64_local_hash_entry
*) *slot
;
2082 ret
= (struct elfNN_ia64_local_hash_entry
*)
2083 objalloc_alloc ((struct objalloc
*) ia64_info
->loc_hash_memory
,
2084 sizeof (struct elfNN_ia64_local_hash_entry
));
2087 memset (ret
, 0, sizeof (*ret
));
2089 ret
->r_sym
= ELFNN_R_SYM (rel
->r_info
);
2095 /* Find and/or create a descriptor for dynamic symbol info. This will
2096 vary based on global or local symbol, and the addend to the reloc. */
2098 static struct elfNN_ia64_dyn_sym_info
*
2099 get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, create
)
2100 struct elfNN_ia64_link_hash_table
*ia64_info
;
2101 struct elf_link_hash_entry
*h
;
2103 const Elf_Internal_Rela
*rel
;
2106 struct elfNN_ia64_dyn_sym_info
**pp
;
2107 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2108 bfd_vma addend
= rel
? rel
->r_addend
: 0;
2111 pp
= &((struct elfNN_ia64_link_hash_entry
*)h
)->info
;
2114 struct elfNN_ia64_local_hash_entry
*loc_h
;
2116 loc_h
= get_local_sym_hash (ia64_info
, abfd
, rel
, create
);
2119 BFD_ASSERT (!create
);
2126 for (dyn_i
= *pp
; dyn_i
&& dyn_i
->addend
!= addend
; dyn_i
= *pp
)
2129 if (dyn_i
== NULL
&& create
)
2131 dyn_i
= ((struct elfNN_ia64_dyn_sym_info
*)
2132 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *dyn_i
));
2134 dyn_i
->addend
= addend
;
2141 get_got (abfd
, info
, ia64_info
)
2143 struct bfd_link_info
*info
;
2144 struct elfNN_ia64_link_hash_table
*ia64_info
;
2149 got
= ia64_info
->got_sec
;
2154 dynobj
= ia64_info
->root
.dynobj
;
2156 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2157 if (!_bfd_elf_create_got_section (dynobj
, info
))
2160 got
= bfd_get_section_by_name (dynobj
, ".got");
2162 ia64_info
->got_sec
= got
;
2164 /* The .got section is always aligned at 8 bytes. */
2165 if (!bfd_set_section_alignment (abfd
, got
, 3))
2168 flags
= bfd_get_section_flags (abfd
, got
);
2169 bfd_set_section_flags (abfd
, got
, SEC_SMALL_DATA
| flags
);
2175 /* Create function descriptor section (.opd). This section is called .opd
2176 because it contains "official procedure descriptors". The "official"
2177 refers to the fact that these descriptors are used when taking the address
2178 of a procedure, thus ensuring a unique address for each procedure. */
2181 get_fptr (abfd
, info
, ia64_info
)
2183 struct bfd_link_info
*info
;
2184 struct elfNN_ia64_link_hash_table
*ia64_info
;
2189 fptr
= ia64_info
->fptr_sec
;
2192 dynobj
= ia64_info
->root
.dynobj
;
2194 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2196 fptr
= bfd_make_section_with_flags (dynobj
, ".opd",
2201 | (info
->pie
? 0 : SEC_READONLY
)
2202 | SEC_LINKER_CREATED
));
2204 || !bfd_set_section_alignment (abfd
, fptr
, 4))
2210 ia64_info
->fptr_sec
= fptr
;
2215 fptr_rel
= bfd_make_section_with_flags (dynobj
, ".rela.opd",
2216 (SEC_ALLOC
| SEC_LOAD
2219 | SEC_LINKER_CREATED
2221 if (fptr_rel
== NULL
2222 || !bfd_set_section_alignment (abfd
, fptr_rel
,
2229 ia64_info
->rel_fptr_sec
= fptr_rel
;
2237 get_pltoff (abfd
, info
, ia64_info
)
2239 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
2240 struct elfNN_ia64_link_hash_table
*ia64_info
;
2245 pltoff
= ia64_info
->pltoff_sec
;
2248 dynobj
= ia64_info
->root
.dynobj
;
2250 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2252 pltoff
= bfd_make_section_with_flags (dynobj
,
2253 ELF_STRING_ia64_pltoff
,
2259 | SEC_LINKER_CREATED
));
2261 || !bfd_set_section_alignment (abfd
, pltoff
, 4))
2267 ia64_info
->pltoff_sec
= pltoff
;
2274 get_reloc_section (abfd
, ia64_info
, sec
, create
)
2276 struct elfNN_ia64_link_hash_table
*ia64_info
;
2280 const char *srel_name
;
2284 srel_name
= (bfd_elf_string_from_elf_section
2285 (abfd
, elf_elfheader(abfd
)->e_shstrndx
,
2286 elf_section_data(sec
)->rel_hdr
.sh_name
));
2287 if (srel_name
== NULL
)
2290 BFD_ASSERT ((strncmp (srel_name
, ".rela", 5) == 0
2291 && strcmp (bfd_get_section_name (abfd
, sec
),
2293 || (strncmp (srel_name
, ".rel", 4) == 0
2294 && strcmp (bfd_get_section_name (abfd
, sec
),
2295 srel_name
+4) == 0));
2297 dynobj
= ia64_info
->root
.dynobj
;
2299 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2301 srel
= bfd_get_section_by_name (dynobj
, srel_name
);
2302 if (srel
== NULL
&& create
)
2304 srel
= bfd_make_section_with_flags (dynobj
, srel_name
,
2305 (SEC_ALLOC
| SEC_LOAD
2308 | SEC_LINKER_CREATED
2311 || !bfd_set_section_alignment (dynobj
, srel
,
2320 count_dyn_reloc (bfd
*abfd
, struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2321 asection
*srel
, int type
, bfd_boolean reltext
)
2323 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2325 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2326 if (rent
->srel
== srel
&& rent
->type
== type
)
2331 rent
= ((struct elfNN_ia64_dyn_reloc_entry
*)
2332 bfd_alloc (abfd
, (bfd_size_type
) sizeof (*rent
)));
2336 rent
->next
= dyn_i
->reloc_entries
;
2340 dyn_i
->reloc_entries
= rent
;
2342 rent
->reltext
= reltext
;
2349 elfNN_ia64_check_relocs (abfd
, info
, sec
, relocs
)
2351 struct bfd_link_info
*info
;
2353 const Elf_Internal_Rela
*relocs
;
2355 struct elfNN_ia64_link_hash_table
*ia64_info
;
2356 const Elf_Internal_Rela
*relend
;
2357 Elf_Internal_Shdr
*symtab_hdr
;
2358 const Elf_Internal_Rela
*rel
;
2359 asection
*got
, *fptr
, *srel
, *pltoff
;
2361 if (info
->relocatable
)
2364 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
2365 ia64_info
= elfNN_ia64_hash_table (info
);
2367 got
= fptr
= srel
= pltoff
= NULL
;
2369 relend
= relocs
+ sec
->reloc_count
;
2370 for (rel
= relocs
; rel
< relend
; ++rel
)
2380 NEED_LTOFF_FPTR
= 128,
2386 struct elf_link_hash_entry
*h
= NULL
;
2387 unsigned long r_symndx
= ELFNN_R_SYM (rel
->r_info
);
2388 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2390 bfd_boolean maybe_dynamic
;
2391 int dynrel_type
= R_IA64_NONE
;
2393 if (r_symndx
>= symtab_hdr
->sh_info
)
2395 /* We're dealing with a global symbol -- find its hash entry
2396 and mark it as being referenced. */
2397 long indx
= r_symndx
- symtab_hdr
->sh_info
;
2398 h
= elf_sym_hashes (abfd
)[indx
];
2399 while (h
->root
.type
== bfd_link_hash_indirect
2400 || h
->root
.type
== bfd_link_hash_warning
)
2401 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2406 /* We can only get preliminary data on whether a symbol is
2407 locally or externally defined, as not all of the input files
2408 have yet been processed. Do something with what we know, as
2409 this may help reduce memory usage and processing time later. */
2410 maybe_dynamic
= FALSE
;
2411 if (h
&& ((!info
->executable
2413 || info
->unresolved_syms_in_shared_libs
== RM_IGNORE
))
2415 || h
->root
.type
== bfd_link_hash_defweak
))
2416 maybe_dynamic
= TRUE
;
2419 switch (ELFNN_R_TYPE (rel
->r_info
))
2421 case R_IA64_TPREL64MSB
:
2422 case R_IA64_TPREL64LSB
:
2423 if (info
->shared
|| maybe_dynamic
)
2424 need_entry
= NEED_DYNREL
;
2425 dynrel_type
= R_IA64_TPREL64LSB
;
2427 info
->flags
|= DF_STATIC_TLS
;
2430 case R_IA64_LTOFF_TPREL22
:
2431 need_entry
= NEED_TPREL
;
2433 info
->flags
|= DF_STATIC_TLS
;
2436 case R_IA64_DTPREL32MSB
:
2437 case R_IA64_DTPREL32LSB
:
2438 case R_IA64_DTPREL64MSB
:
2439 case R_IA64_DTPREL64LSB
:
2440 if (info
->shared
|| maybe_dynamic
)
2441 need_entry
= NEED_DYNREL
;
2442 dynrel_type
= R_IA64_DTPRELNNLSB
;
2445 case R_IA64_LTOFF_DTPREL22
:
2446 need_entry
= NEED_DTPREL
;
2449 case R_IA64_DTPMOD64MSB
:
2450 case R_IA64_DTPMOD64LSB
:
2451 if (info
->shared
|| maybe_dynamic
)
2452 need_entry
= NEED_DYNREL
;
2453 dynrel_type
= R_IA64_DTPMOD64LSB
;
2456 case R_IA64_LTOFF_DTPMOD22
:
2457 need_entry
= NEED_DTPMOD
;
2460 case R_IA64_LTOFF_FPTR22
:
2461 case R_IA64_LTOFF_FPTR64I
:
2462 case R_IA64_LTOFF_FPTR32MSB
:
2463 case R_IA64_LTOFF_FPTR32LSB
:
2464 case R_IA64_LTOFF_FPTR64MSB
:
2465 case R_IA64_LTOFF_FPTR64LSB
:
2466 need_entry
= NEED_FPTR
| NEED_GOT
| NEED_LTOFF_FPTR
;
2469 case R_IA64_FPTR64I
:
2470 case R_IA64_FPTR32MSB
:
2471 case R_IA64_FPTR32LSB
:
2472 case R_IA64_FPTR64MSB
:
2473 case R_IA64_FPTR64LSB
:
2474 if (info
->shared
|| h
)
2475 need_entry
= NEED_FPTR
| NEED_DYNREL
;
2477 need_entry
= NEED_FPTR
;
2478 dynrel_type
= R_IA64_FPTRNNLSB
;
2481 case R_IA64_LTOFF22
:
2482 case R_IA64_LTOFF64I
:
2483 need_entry
= NEED_GOT
;
2486 case R_IA64_LTOFF22X
:
2487 need_entry
= NEED_GOTX
;
2490 case R_IA64_PLTOFF22
:
2491 case R_IA64_PLTOFF64I
:
2492 case R_IA64_PLTOFF64MSB
:
2493 case R_IA64_PLTOFF64LSB
:
2494 need_entry
= NEED_PLTOFF
;
2498 need_entry
|= NEED_MIN_PLT
;
2502 (*info
->callbacks
->warning
)
2503 (info
, _("@pltoff reloc against local symbol"), 0,
2504 abfd
, 0, (bfd_vma
) 0);
2508 case R_IA64_PCREL21B
:
2509 case R_IA64_PCREL60B
:
2510 /* Depending on where this symbol is defined, we may or may not
2511 need a full plt entry. Only skip if we know we'll not need
2512 the entry -- static or symbolic, and the symbol definition
2513 has already been seen. */
2514 if (maybe_dynamic
&& rel
->r_addend
== 0)
2515 need_entry
= NEED_FULL_PLT
;
2521 case R_IA64_DIR32MSB
:
2522 case R_IA64_DIR32LSB
:
2523 case R_IA64_DIR64MSB
:
2524 case R_IA64_DIR64LSB
:
2525 /* Shared objects will always need at least a REL relocation. */
2526 if (info
->shared
|| maybe_dynamic
)
2527 need_entry
= NEED_DYNREL
;
2528 dynrel_type
= R_IA64_DIRNNLSB
;
2531 case R_IA64_IPLTMSB
:
2532 case R_IA64_IPLTLSB
:
2533 /* Shared objects will always need at least a REL relocation. */
2534 if (info
->shared
|| maybe_dynamic
)
2535 need_entry
= NEED_DYNREL
;
2536 dynrel_type
= R_IA64_IPLTLSB
;
2539 case R_IA64_PCREL22
:
2540 case R_IA64_PCREL64I
:
2541 case R_IA64_PCREL32MSB
:
2542 case R_IA64_PCREL32LSB
:
2543 case R_IA64_PCREL64MSB
:
2544 case R_IA64_PCREL64LSB
:
2546 need_entry
= NEED_DYNREL
;
2547 dynrel_type
= R_IA64_PCRELNNLSB
;
2554 if ((need_entry
& NEED_FPTR
) != 0
2557 (*info
->callbacks
->warning
)
2558 (info
, _("non-zero addend in @fptr reloc"), 0,
2559 abfd
, 0, (bfd_vma
) 0);
2562 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, TRUE
);
2564 /* Record whether or not this is a local symbol. */
2567 /* Create what's needed. */
2568 if (need_entry
& (NEED_GOT
| NEED_GOTX
| NEED_TPREL
2569 | NEED_DTPMOD
| NEED_DTPREL
))
2573 got
= get_got (abfd
, info
, ia64_info
);
2577 if (need_entry
& NEED_GOT
)
2578 dyn_i
->want_got
= 1;
2579 if (need_entry
& NEED_GOTX
)
2580 dyn_i
->want_gotx
= 1;
2581 if (need_entry
& NEED_TPREL
)
2582 dyn_i
->want_tprel
= 1;
2583 if (need_entry
& NEED_DTPMOD
)
2584 dyn_i
->want_dtpmod
= 1;
2585 if (need_entry
& NEED_DTPREL
)
2586 dyn_i
->want_dtprel
= 1;
2588 if (need_entry
& NEED_FPTR
)
2592 fptr
= get_fptr (abfd
, info
, ia64_info
);
2597 /* FPTRs for shared libraries are allocated by the dynamic
2598 linker. Make sure this local symbol will appear in the
2599 dynamic symbol table. */
2600 if (!h
&& info
->shared
)
2602 if (! (bfd_elf_link_record_local_dynamic_symbol
2603 (info
, abfd
, (long) r_symndx
)))
2607 dyn_i
->want_fptr
= 1;
2609 if (need_entry
& NEED_LTOFF_FPTR
)
2610 dyn_i
->want_ltoff_fptr
= 1;
2611 if (need_entry
& (NEED_MIN_PLT
| NEED_FULL_PLT
))
2613 if (!ia64_info
->root
.dynobj
)
2614 ia64_info
->root
.dynobj
= abfd
;
2616 dyn_i
->want_plt
= 1;
2618 if (need_entry
& NEED_FULL_PLT
)
2619 dyn_i
->want_plt2
= 1;
2620 if (need_entry
& NEED_PLTOFF
)
2622 /* This is needed here, in case @pltoff is used in a non-shared
2626 pltoff
= get_pltoff (abfd
, info
, ia64_info
);
2631 dyn_i
->want_pltoff
= 1;
2633 if ((need_entry
& NEED_DYNREL
) && (sec
->flags
& SEC_ALLOC
))
2637 srel
= get_reloc_section (abfd
, ia64_info
, sec
, TRUE
);
2641 if (!count_dyn_reloc (abfd
, dyn_i
, srel
, dynrel_type
,
2642 (sec
->flags
& SEC_READONLY
) != 0))
2650 /* For cleanliness, and potentially faster dynamic loading, allocate
2651 external GOT entries first. */
2654 allocate_global_data_got (dyn_i
, data
)
2655 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2658 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2660 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2661 && ! dyn_i
->want_fptr
2662 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2664 dyn_i
->got_offset
= x
->ofs
;
2667 if (dyn_i
->want_tprel
)
2669 dyn_i
->tprel_offset
= x
->ofs
;
2672 if (dyn_i
->want_dtpmod
)
2674 if (elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2676 dyn_i
->dtpmod_offset
= x
->ofs
;
2681 struct elfNN_ia64_link_hash_table
*ia64_info
;
2683 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2684 if (ia64_info
->self_dtpmod_offset
== (bfd_vma
) -1)
2686 ia64_info
->self_dtpmod_offset
= x
->ofs
;
2689 dyn_i
->dtpmod_offset
= ia64_info
->self_dtpmod_offset
;
2692 if (dyn_i
->want_dtprel
)
2694 dyn_i
->dtprel_offset
= x
->ofs
;
2700 /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2703 allocate_global_fptr_got (dyn_i
, data
)
2704 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2707 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2711 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, R_IA64_FPTRNNLSB
))
2713 dyn_i
->got_offset
= x
->ofs
;
2719 /* Lastly, allocate all the GOT entries for local data. */
2722 allocate_local_got (dyn_i
, data
)
2723 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2726 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2728 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2729 && !elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2731 dyn_i
->got_offset
= x
->ofs
;
2737 /* Search for the index of a global symbol in it's defining object file. */
2740 global_sym_index (h
)
2741 struct elf_link_hash_entry
*h
;
2743 struct elf_link_hash_entry
**p
;
2746 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
2747 || h
->root
.type
== bfd_link_hash_defweak
);
2749 obj
= h
->root
.u
.def
.section
->owner
;
2750 for (p
= elf_sym_hashes (obj
); *p
!= h
; ++p
)
2753 return p
- elf_sym_hashes (obj
) + elf_tdata (obj
)->symtab_hdr
.sh_info
;
2756 /* Allocate function descriptors. We can do these for every function
2757 in a main executable that is not exported. */
2760 allocate_fptr (dyn_i
, data
)
2761 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2764 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2766 if (dyn_i
->want_fptr
)
2768 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2771 while (h
->root
.type
== bfd_link_hash_indirect
2772 || h
->root
.type
== bfd_link_hash_warning
)
2773 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2775 if (!x
->info
->executable
2777 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2778 || h
->root
.type
!= bfd_link_hash_undefweak
))
2780 if (h
&& h
->dynindx
== -1)
2782 BFD_ASSERT ((h
->root
.type
== bfd_link_hash_defined
)
2783 || (h
->root
.type
== bfd_link_hash_defweak
));
2785 if (!bfd_elf_link_record_local_dynamic_symbol
2786 (x
->info
, h
->root
.u
.def
.section
->owner
,
2787 global_sym_index (h
)))
2791 dyn_i
->want_fptr
= 0;
2793 else if (h
== NULL
|| h
->dynindx
== -1)
2795 dyn_i
->fptr_offset
= x
->ofs
;
2799 dyn_i
->want_fptr
= 0;
2804 /* Allocate all the minimal PLT entries. */
2807 allocate_plt_entries (dyn_i
, data
)
2808 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2811 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2813 if (dyn_i
->want_plt
)
2815 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2818 while (h
->root
.type
== bfd_link_hash_indirect
2819 || h
->root
.type
== bfd_link_hash_warning
)
2820 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2822 /* ??? Versioned symbols seem to lose NEEDS_PLT. */
2823 if (elfNN_ia64_dynamic_symbol_p (h
, x
->info
, 0))
2825 bfd_size_type offset
= x
->ofs
;
2827 offset
= PLT_HEADER_SIZE
;
2828 dyn_i
->plt_offset
= offset
;
2829 x
->ofs
= offset
+ PLT_MIN_ENTRY_SIZE
;
2831 dyn_i
->want_pltoff
= 1;
2835 dyn_i
->want_plt
= 0;
2836 dyn_i
->want_plt2
= 0;
2842 /* Allocate all the full PLT entries. */
2845 allocate_plt2_entries (dyn_i
, data
)
2846 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2849 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2851 if (dyn_i
->want_plt2
)
2853 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2854 bfd_size_type ofs
= x
->ofs
;
2856 dyn_i
->plt2_offset
= ofs
;
2857 x
->ofs
= ofs
+ PLT_FULL_ENTRY_SIZE
;
2859 while (h
->root
.type
== bfd_link_hash_indirect
2860 || h
->root
.type
== bfd_link_hash_warning
)
2861 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2862 dyn_i
->h
->plt
.offset
= ofs
;
2867 /* Allocate all the PLTOFF entries requested by relocations and
2868 plt entries. We can't share space with allocated FPTR entries,
2869 because the latter are not necessarily addressable by the GP.
2870 ??? Relaxation might be able to determine that they are. */
2873 allocate_pltoff_entries (dyn_i
, data
)
2874 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2877 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2879 if (dyn_i
->want_pltoff
)
2881 dyn_i
->pltoff_offset
= x
->ofs
;
2887 /* Allocate dynamic relocations for those symbols that turned out
2891 allocate_dynrel_entries (dyn_i
, data
)
2892 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2895 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2896 struct elfNN_ia64_link_hash_table
*ia64_info
;
2897 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2898 bfd_boolean dynamic_symbol
, shared
, resolved_zero
;
2900 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2902 /* Note that this can't be used in relation to FPTR relocs below. */
2903 dynamic_symbol
= elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0);
2905 shared
= x
->info
->shared
;
2906 resolved_zero
= (dyn_i
->h
2907 && ELF_ST_VISIBILITY (dyn_i
->h
->other
)
2908 && dyn_i
->h
->root
.type
== bfd_link_hash_undefweak
);
2910 /* Take care of the GOT and PLT relocations. */
2913 && (dynamic_symbol
|| shared
)
2914 && (dyn_i
->want_got
|| dyn_i
->want_gotx
))
2915 || (dyn_i
->want_ltoff_fptr
2917 && dyn_i
->h
->dynindx
!= -1))
2919 if (!dyn_i
->want_ltoff_fptr
2922 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2923 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2925 if ((dynamic_symbol
|| shared
) && dyn_i
->want_tprel
)
2926 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2927 if (dynamic_symbol
&& dyn_i
->want_dtpmod
)
2928 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2929 if (dynamic_symbol
&& dyn_i
->want_dtprel
)
2930 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
2935 if (ia64_info
->rel_fptr_sec
&& dyn_i
->want_fptr
)
2937 if (dyn_i
->h
== NULL
|| dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2938 ia64_info
->rel_fptr_sec
->size
+= sizeof (ElfNN_External_Rela
);
2941 if (!resolved_zero
&& dyn_i
->want_pltoff
)
2943 bfd_size_type t
= 0;
2945 /* Dynamic symbols get one IPLT relocation. Local symbols in
2946 shared libraries get two REL relocations. Local symbols in
2947 main applications get nothing. */
2949 t
= sizeof (ElfNN_External_Rela
);
2951 t
= 2 * sizeof (ElfNN_External_Rela
);
2953 ia64_info
->rel_pltoff_sec
->size
+= t
;
2956 /* Take care of the normal data relocations. */
2958 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2960 int count
= rent
->count
;
2964 case R_IA64_FPTR32LSB
:
2965 case R_IA64_FPTR64LSB
:
2966 /* Allocate one iff !want_fptr and not PIE, which by this point
2967 will be true only if we're actually allocating one statically
2968 in the main executable. Position independent executables
2969 need a relative reloc. */
2970 if (dyn_i
->want_fptr
&& !x
->info
->pie
)
2973 case R_IA64_PCREL32LSB
:
2974 case R_IA64_PCREL64LSB
:
2975 if (!dynamic_symbol
)
2978 case R_IA64_DIR32LSB
:
2979 case R_IA64_DIR64LSB
:
2980 if (!dynamic_symbol
&& !shared
)
2983 case R_IA64_IPLTLSB
:
2984 if (!dynamic_symbol
&& !shared
)
2986 /* Use two REL relocations for IPLT relocations
2987 against local symbols. */
2988 if (!dynamic_symbol
)
2991 case R_IA64_DTPREL32LSB
:
2992 case R_IA64_TPREL64LSB
:
2993 case R_IA64_DTPREL64LSB
:
2994 case R_IA64_DTPMOD64LSB
:
3000 ia64_info
->reltext
= 1;
3001 rent
->srel
->size
+= sizeof (ElfNN_External_Rela
) * count
;
3008 elfNN_ia64_adjust_dynamic_symbol (info
, h
)
3009 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
3010 struct elf_link_hash_entry
*h
;
3012 /* ??? Undefined symbols with PLT entries should be re-defined
3013 to be the PLT entry. */
3015 /* If this is a weak symbol, and there is a real definition, the
3016 processor independent code will have arranged for us to see the
3017 real definition first, and we can just use the same value. */
3018 if (h
->u
.weakdef
!= NULL
)
3020 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
3021 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
3022 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
3023 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
3027 /* If this is a reference to a symbol defined by a dynamic object which
3028 is not a function, we might allocate the symbol in our .dynbss section
3029 and allocate a COPY dynamic relocation.
3031 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
3038 elfNN_ia64_size_dynamic_sections (output_bfd
, info
)
3039 bfd
*output_bfd ATTRIBUTE_UNUSED
;
3040 struct bfd_link_info
*info
;
3042 struct elfNN_ia64_allocate_data data
;
3043 struct elfNN_ia64_link_hash_table
*ia64_info
;
3046 bfd_boolean relplt
= FALSE
;
3048 dynobj
= elf_hash_table(info
)->dynobj
;
3049 ia64_info
= elfNN_ia64_hash_table (info
);
3050 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
3051 BFD_ASSERT(dynobj
!= NULL
);
3054 /* Set the contents of the .interp section to the interpreter. */
3055 if (ia64_info
->root
.dynamic_sections_created
3056 && info
->executable
)
3058 sec
= bfd_get_section_by_name (dynobj
, ".interp");
3059 BFD_ASSERT (sec
!= NULL
);
3060 sec
->contents
= (bfd_byte
*) ELF_DYNAMIC_INTERPRETER
;
3061 sec
->size
= strlen (ELF_DYNAMIC_INTERPRETER
) + 1;
3064 /* Allocate the GOT entries. */
3066 if (ia64_info
->got_sec
)
3069 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
3070 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
3071 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
3072 ia64_info
->got_sec
->size
= data
.ofs
;
3075 /* Allocate the FPTR entries. */
3077 if (ia64_info
->fptr_sec
)
3080 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_fptr
, &data
);
3081 ia64_info
->fptr_sec
->size
= data
.ofs
;
3084 /* Now that we've seen all of the input files, we can decide which
3085 symbols need plt entries. Allocate the minimal PLT entries first.
3086 We do this even though dynamic_sections_created may be FALSE, because
3087 this has the side-effect of clearing want_plt and want_plt2. */
3090 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt_entries
, &data
);
3092 ia64_info
->minplt_entries
= 0;
3095 ia64_info
->minplt_entries
3096 = (data
.ofs
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
3099 /* Align the pointer for the plt2 entries. */
3100 data
.ofs
= (data
.ofs
+ 31) & (bfd_vma
) -32;
3102 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt2_entries
, &data
);
3103 if (data
.ofs
!= 0 || ia64_info
->root
.dynamic_sections_created
)
3105 /* FIXME: we always reserve the memory for dynamic linker even if
3106 there are no PLT entries since dynamic linker may assume the
3107 reserved memory always exists. */
3109 BFD_ASSERT (ia64_info
->root
.dynamic_sections_created
);
3111 ia64_info
->plt_sec
->size
= data
.ofs
;
3113 /* If we've got a .plt, we need some extra memory for the dynamic
3114 linker. We stuff these in .got.plt. */
3115 sec
= bfd_get_section_by_name (dynobj
, ".got.plt");
3116 sec
->size
= 8 * PLT_RESERVED_WORDS
;
3119 /* Allocate the PLTOFF entries. */
3121 if (ia64_info
->pltoff_sec
)
3124 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_pltoff_entries
, &data
);
3125 ia64_info
->pltoff_sec
->size
= data
.ofs
;
3128 if (ia64_info
->root
.dynamic_sections_created
)
3130 /* Allocate space for the dynamic relocations that turned out to be
3133 if (info
->shared
&& ia64_info
->self_dtpmod_offset
!= (bfd_vma
) -1)
3134 ia64_info
->rel_got_sec
->size
+= sizeof (ElfNN_External_Rela
);
3135 data
.only_got
= FALSE
;
3136 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_dynrel_entries
, &data
);
3139 /* We have now determined the sizes of the various dynamic sections.
3140 Allocate memory for them. */
3141 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
3145 if (!(sec
->flags
& SEC_LINKER_CREATED
))
3148 /* If we don't need this section, strip it from the output file.
3149 There were several sections primarily related to dynamic
3150 linking that must be create before the linker maps input
3151 sections to output sections. The linker does that before
3152 bfd_elf_size_dynamic_sections is called, and it is that
3153 function which decides whether anything needs to go into
3156 strip
= (sec
->size
== 0);
3158 if (sec
== ia64_info
->got_sec
)
3160 else if (sec
== ia64_info
->rel_got_sec
)
3163 ia64_info
->rel_got_sec
= NULL
;
3165 /* We use the reloc_count field as a counter if we need to
3166 copy relocs into the output file. */
3167 sec
->reloc_count
= 0;
3169 else if (sec
== ia64_info
->fptr_sec
)
3172 ia64_info
->fptr_sec
= NULL
;
3174 else if (sec
== ia64_info
->rel_fptr_sec
)
3177 ia64_info
->rel_fptr_sec
= NULL
;
3179 /* We use the reloc_count field as a counter if we need to
3180 copy relocs into the output file. */
3181 sec
->reloc_count
= 0;
3183 else if (sec
== ia64_info
->plt_sec
)
3186 ia64_info
->plt_sec
= NULL
;
3188 else if (sec
== ia64_info
->pltoff_sec
)
3191 ia64_info
->pltoff_sec
= NULL
;
3193 else if (sec
== ia64_info
->rel_pltoff_sec
)
3196 ia64_info
->rel_pltoff_sec
= NULL
;
3200 /* We use the reloc_count field as a counter if we need to
3201 copy relocs into the output file. */
3202 sec
->reloc_count
= 0;
3209 /* It's OK to base decisions on the section name, because none
3210 of the dynobj section names depend upon the input files. */
3211 name
= bfd_get_section_name (dynobj
, sec
);
3213 if (strcmp (name
, ".got.plt") == 0)
3215 else if (strncmp (name
, ".rel", 4) == 0)
3219 /* We use the reloc_count field as a counter if we need to
3220 copy relocs into the output file. */
3221 sec
->reloc_count
= 0;
3229 sec
->flags
|= SEC_EXCLUDE
;
3232 /* Allocate memory for the section contents. */
3233 sec
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, sec
->size
);
3234 if (sec
->contents
== NULL
&& sec
->size
!= 0)
3239 if (elf_hash_table (info
)->dynamic_sections_created
)
3241 /* Add some entries to the .dynamic section. We fill in the values
3242 later (in finish_dynamic_sections) but we must add the entries now
3243 so that we get the correct size for the .dynamic section. */
3245 if (info
->executable
)
3247 /* The DT_DEBUG entry is filled in by the dynamic linker and used
3249 #define add_dynamic_entry(TAG, VAL) \
3250 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3252 if (!add_dynamic_entry (DT_DEBUG
, 0))
3256 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE
, 0))
3258 if (!add_dynamic_entry (DT_PLTGOT
, 0))
3263 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
3264 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3265 || !add_dynamic_entry (DT_JMPREL
, 0))
3269 if (!add_dynamic_entry (DT_RELA
, 0)
3270 || !add_dynamic_entry (DT_RELASZ
, 0)
3271 || !add_dynamic_entry (DT_RELAENT
, sizeof (ElfNN_External_Rela
)))
3274 if (ia64_info
->reltext
)
3276 if (!add_dynamic_entry (DT_TEXTREL
, 0))
3278 info
->flags
|= DF_TEXTREL
;
3282 /* ??? Perhaps force __gp local. */
3287 static bfd_reloc_status_type
3288 elfNN_ia64_install_value (hit_addr
, v
, r_type
)
3291 unsigned int r_type
;
3293 const struct ia64_operand
*op
;
3294 int bigendian
= 0, shift
= 0;
3295 bfd_vma t0
, t1
, dword
;
3297 enum ia64_opnd opnd
;
3300 #ifdef BFD_HOST_U_64_BIT
3301 BFD_HOST_U_64_BIT val
= (BFD_HOST_U_64_BIT
) v
;
3306 opnd
= IA64_OPND_NIL
;
3311 return bfd_reloc_ok
;
3313 /* Instruction relocations. */
3316 case R_IA64_TPREL14
:
3317 case R_IA64_DTPREL14
:
3318 opnd
= IA64_OPND_IMM14
;
3321 case R_IA64_PCREL21F
: opnd
= IA64_OPND_TGT25
; break;
3322 case R_IA64_PCREL21M
: opnd
= IA64_OPND_TGT25b
; break;
3323 case R_IA64_PCREL60B
: opnd
= IA64_OPND_TGT64
; break;
3324 case R_IA64_PCREL21B
:
3325 case R_IA64_PCREL21BI
:
3326 opnd
= IA64_OPND_TGT25c
;
3330 case R_IA64_GPREL22
:
3331 case R_IA64_LTOFF22
:
3332 case R_IA64_LTOFF22X
:
3333 case R_IA64_PLTOFF22
:
3334 case R_IA64_PCREL22
:
3335 case R_IA64_LTOFF_FPTR22
:
3336 case R_IA64_TPREL22
:
3337 case R_IA64_DTPREL22
:
3338 case R_IA64_LTOFF_TPREL22
:
3339 case R_IA64_LTOFF_DTPMOD22
:
3340 case R_IA64_LTOFF_DTPREL22
:
3341 opnd
= IA64_OPND_IMM22
;
3345 case R_IA64_GPREL64I
:
3346 case R_IA64_LTOFF64I
:
3347 case R_IA64_PLTOFF64I
:
3348 case R_IA64_PCREL64I
:
3349 case R_IA64_FPTR64I
:
3350 case R_IA64_LTOFF_FPTR64I
:
3351 case R_IA64_TPREL64I
:
3352 case R_IA64_DTPREL64I
:
3353 opnd
= IA64_OPND_IMMU64
;
3356 /* Data relocations. */
3358 case R_IA64_DIR32MSB
:
3359 case R_IA64_GPREL32MSB
:
3360 case R_IA64_FPTR32MSB
:
3361 case R_IA64_PCREL32MSB
:
3362 case R_IA64_LTOFF_FPTR32MSB
:
3363 case R_IA64_SEGREL32MSB
:
3364 case R_IA64_SECREL32MSB
:
3365 case R_IA64_LTV32MSB
:
3366 case R_IA64_DTPREL32MSB
:
3367 size
= 4; bigendian
= 1;
3370 case R_IA64_DIR32LSB
:
3371 case R_IA64_GPREL32LSB
:
3372 case R_IA64_FPTR32LSB
:
3373 case R_IA64_PCREL32LSB
:
3374 case R_IA64_LTOFF_FPTR32LSB
:
3375 case R_IA64_SEGREL32LSB
:
3376 case R_IA64_SECREL32LSB
:
3377 case R_IA64_LTV32LSB
:
3378 case R_IA64_DTPREL32LSB
:
3379 size
= 4; bigendian
= 0;
3382 case R_IA64_DIR64MSB
:
3383 case R_IA64_GPREL64MSB
:
3384 case R_IA64_PLTOFF64MSB
:
3385 case R_IA64_FPTR64MSB
:
3386 case R_IA64_PCREL64MSB
:
3387 case R_IA64_LTOFF_FPTR64MSB
:
3388 case R_IA64_SEGREL64MSB
:
3389 case R_IA64_SECREL64MSB
:
3390 case R_IA64_LTV64MSB
:
3391 case R_IA64_TPREL64MSB
:
3392 case R_IA64_DTPMOD64MSB
:
3393 case R_IA64_DTPREL64MSB
:
3394 size
= 8; bigendian
= 1;
3397 case R_IA64_DIR64LSB
:
3398 case R_IA64_GPREL64LSB
:
3399 case R_IA64_PLTOFF64LSB
:
3400 case R_IA64_FPTR64LSB
:
3401 case R_IA64_PCREL64LSB
:
3402 case R_IA64_LTOFF_FPTR64LSB
:
3403 case R_IA64_SEGREL64LSB
:
3404 case R_IA64_SECREL64LSB
:
3405 case R_IA64_LTV64LSB
:
3406 case R_IA64_TPREL64LSB
:
3407 case R_IA64_DTPMOD64LSB
:
3408 case R_IA64_DTPREL64LSB
:
3409 size
= 8; bigendian
= 0;
3412 /* Unsupported / Dynamic relocations. */
3414 return bfd_reloc_notsupported
;
3419 case IA64_OPND_IMMU64
:
3420 hit_addr
-= (long) hit_addr
& 0x3;
3421 t0
= bfd_getl64 (hit_addr
);
3422 t1
= bfd_getl64 (hit_addr
+ 8);
3424 /* tmpl/s: bits 0.. 5 in t0
3425 slot 0: bits 5..45 in t0
3426 slot 1: bits 46..63 in t0, bits 0..22 in t1
3427 slot 2: bits 23..63 in t1 */
3429 /* First, clear the bits that form the 64 bit constant. */
3430 t0
&= ~(0x3ffffLL
<< 46);
3432 | (( (0x07fLL
<< 13) | (0x1ffLL
<< 27)
3433 | (0x01fLL
<< 22) | (0x001LL
<< 21)
3434 | (0x001LL
<< 36)) << 23));
3436 t0
|= ((val
>> 22) & 0x03ffffLL
) << 46; /* 18 lsbs of imm41 */
3437 t1
|= ((val
>> 40) & 0x7fffffLL
) << 0; /* 23 msbs of imm41 */
3438 t1
|= ( (((val
>> 0) & 0x07f) << 13) /* imm7b */
3439 | (((val
>> 7) & 0x1ff) << 27) /* imm9d */
3440 | (((val
>> 16) & 0x01f) << 22) /* imm5c */
3441 | (((val
>> 21) & 0x001) << 21) /* ic */
3442 | (((val
>> 63) & 0x001) << 36)) << 23; /* i */
3444 bfd_putl64 (t0
, hit_addr
);
3445 bfd_putl64 (t1
, hit_addr
+ 8);
3448 case IA64_OPND_TGT64
:
3449 hit_addr
-= (long) hit_addr
& 0x3;
3450 t0
= bfd_getl64 (hit_addr
);
3451 t1
= bfd_getl64 (hit_addr
+ 8);
3453 /* tmpl/s: bits 0.. 5 in t0
3454 slot 0: bits 5..45 in t0
3455 slot 1: bits 46..63 in t0, bits 0..22 in t1
3456 slot 2: bits 23..63 in t1 */
3458 /* First, clear the bits that form the 64 bit constant. */
3459 t0
&= ~(0x3ffffLL
<< 46);
3461 | ((1LL << 36 | 0xfffffLL
<< 13) << 23));
3464 t0
|= ((val
>> 20) & 0xffffLL
) << 2 << 46; /* 16 lsbs of imm39 */
3465 t1
|= ((val
>> 36) & 0x7fffffLL
) << 0; /* 23 msbs of imm39 */
3466 t1
|= ((((val
>> 0) & 0xfffffLL
) << 13) /* imm20b */
3467 | (((val
>> 59) & 0x1LL
) << 36)) << 23; /* i */
3469 bfd_putl64 (t0
, hit_addr
);
3470 bfd_putl64 (t1
, hit_addr
+ 8);
3474 switch ((long) hit_addr
& 0x3)
3476 case 0: shift
= 5; break;
3477 case 1: shift
= 14; hit_addr
+= 3; break;
3478 case 2: shift
= 23; hit_addr
+= 6; break;
3479 case 3: return bfd_reloc_notsupported
; /* shouldn't happen... */
3481 dword
= bfd_getl64 (hit_addr
);
3482 insn
= (dword
>> shift
) & 0x1ffffffffffLL
;
3484 op
= elf64_ia64_operands
+ opnd
;
3485 err
= (*op
->insert
) (op
, val
, &insn
);
3487 return bfd_reloc_overflow
;
3489 dword
&= ~(0x1ffffffffffLL
<< shift
);
3490 dword
|= (insn
<< shift
);
3491 bfd_putl64 (dword
, hit_addr
);
3495 /* A data relocation. */
3498 bfd_putb32 (val
, hit_addr
);
3500 bfd_putb64 (val
, hit_addr
);
3503 bfd_putl32 (val
, hit_addr
);
3505 bfd_putl64 (val
, hit_addr
);
3509 return bfd_reloc_ok
;
3513 elfNN_ia64_install_dyn_reloc (abfd
, info
, sec
, srel
, offset
, type
,
3516 struct bfd_link_info
*info
;
3524 Elf_Internal_Rela outrel
;
3527 BFD_ASSERT (dynindx
!= -1);
3528 outrel
.r_info
= ELFNN_R_INFO (dynindx
, type
);
3529 outrel
.r_addend
= addend
;
3530 outrel
.r_offset
= _bfd_elf_section_offset (abfd
, info
, sec
, offset
);
3531 if (outrel
.r_offset
>= (bfd_vma
) -2)
3533 /* Run for the hills. We shouldn't be outputting a relocation
3534 for this. So do what everyone else does and output a no-op. */
3535 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
3536 outrel
.r_addend
= 0;
3537 outrel
.r_offset
= 0;
3540 outrel
.r_offset
+= sec
->output_section
->vma
+ sec
->output_offset
;
3542 loc
= srel
->contents
;
3543 loc
+= srel
->reloc_count
++ * sizeof (ElfNN_External_Rela
);
3544 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3545 BFD_ASSERT (sizeof (ElfNN_External_Rela
) * srel
->reloc_count
<= srel
->size
);
3548 /* Store an entry for target address TARGET_ADDR in the linkage table
3549 and return the gp-relative address of the linkage table entry. */
3552 set_got_entry (abfd
, info
, dyn_i
, dynindx
, addend
, value
, dyn_r_type
)
3554 struct bfd_link_info
*info
;
3555 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3559 unsigned int dyn_r_type
;
3561 struct elfNN_ia64_link_hash_table
*ia64_info
;
3566 ia64_info
= elfNN_ia64_hash_table (info
);
3567 got_sec
= ia64_info
->got_sec
;
3571 case R_IA64_TPREL64LSB
:
3572 done
= dyn_i
->tprel_done
;
3573 dyn_i
->tprel_done
= TRUE
;
3574 got_offset
= dyn_i
->tprel_offset
;
3576 case R_IA64_DTPMOD64LSB
:
3577 if (dyn_i
->dtpmod_offset
!= ia64_info
->self_dtpmod_offset
)
3579 done
= dyn_i
->dtpmod_done
;
3580 dyn_i
->dtpmod_done
= TRUE
;
3584 done
= ia64_info
->self_dtpmod_done
;
3585 ia64_info
->self_dtpmod_done
= TRUE
;
3588 got_offset
= dyn_i
->dtpmod_offset
;
3590 case R_IA64_DTPREL32LSB
:
3591 case R_IA64_DTPREL64LSB
:
3592 done
= dyn_i
->dtprel_done
;
3593 dyn_i
->dtprel_done
= TRUE
;
3594 got_offset
= dyn_i
->dtprel_offset
;
3597 done
= dyn_i
->got_done
;
3598 dyn_i
->got_done
= TRUE
;
3599 got_offset
= dyn_i
->got_offset
;
3603 BFD_ASSERT ((got_offset
& 7) == 0);
3607 /* Store the target address in the linkage table entry. */
3608 bfd_put_64 (abfd
, value
, got_sec
->contents
+ got_offset
);
3610 /* Install a dynamic relocation if needed. */
3613 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3614 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
3615 && dyn_r_type
!= R_IA64_DTPREL32LSB
3616 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3617 || elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, info
, dyn_r_type
)
3619 && (dyn_r_type
== R_IA64_FPTR32LSB
3620 || dyn_r_type
== R_IA64_FPTR64LSB
)))
3621 && (!dyn_i
->want_ltoff_fptr
3624 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3627 && dyn_r_type
!= R_IA64_TPREL64LSB
3628 && dyn_r_type
!= R_IA64_DTPMOD64LSB
3629 && dyn_r_type
!= R_IA64_DTPREL32LSB
3630 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3632 dyn_r_type
= R_IA64_RELNNLSB
;
3637 if (bfd_big_endian (abfd
))
3641 case R_IA64_REL32LSB
:
3642 dyn_r_type
= R_IA64_REL32MSB
;
3644 case R_IA64_DIR32LSB
:
3645 dyn_r_type
= R_IA64_DIR32MSB
;
3647 case R_IA64_FPTR32LSB
:
3648 dyn_r_type
= R_IA64_FPTR32MSB
;
3650 case R_IA64_DTPREL32LSB
:
3651 dyn_r_type
= R_IA64_DTPREL32MSB
;
3653 case R_IA64_REL64LSB
:
3654 dyn_r_type
= R_IA64_REL64MSB
;
3656 case R_IA64_DIR64LSB
:
3657 dyn_r_type
= R_IA64_DIR64MSB
;
3659 case R_IA64_FPTR64LSB
:
3660 dyn_r_type
= R_IA64_FPTR64MSB
;
3662 case R_IA64_TPREL64LSB
:
3663 dyn_r_type
= R_IA64_TPREL64MSB
;
3665 case R_IA64_DTPMOD64LSB
:
3666 dyn_r_type
= R_IA64_DTPMOD64MSB
;
3668 case R_IA64_DTPREL64LSB
:
3669 dyn_r_type
= R_IA64_DTPREL64MSB
;
3677 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, got_sec
,
3678 ia64_info
->rel_got_sec
,
3679 got_offset
, dyn_r_type
,
3684 /* Return the address of the linkage table entry. */
3685 value
= (got_sec
->output_section
->vma
3686 + got_sec
->output_offset
3692 /* Fill in a function descriptor consisting of the function's code
3693 address and its global pointer. Return the descriptor's address. */
3696 set_fptr_entry (abfd
, info
, dyn_i
, value
)
3698 struct bfd_link_info
*info
;
3699 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3702 struct elfNN_ia64_link_hash_table
*ia64_info
;
3705 ia64_info
= elfNN_ia64_hash_table (info
);
3706 fptr_sec
= ia64_info
->fptr_sec
;
3708 if (!dyn_i
->fptr_done
)
3710 dyn_i
->fptr_done
= 1;
3712 /* Fill in the function descriptor. */
3713 bfd_put_64 (abfd
, value
, fptr_sec
->contents
+ dyn_i
->fptr_offset
);
3714 bfd_put_64 (abfd
, _bfd_get_gp_value (abfd
),
3715 fptr_sec
->contents
+ dyn_i
->fptr_offset
+ 8);
3716 if (ia64_info
->rel_fptr_sec
)
3718 Elf_Internal_Rela outrel
;
3721 if (bfd_little_endian (abfd
))
3722 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTLSB
);
3724 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTMSB
);
3725 outrel
.r_addend
= value
;
3726 outrel
.r_offset
= (fptr_sec
->output_section
->vma
3727 + fptr_sec
->output_offset
3728 + dyn_i
->fptr_offset
);
3729 loc
= ia64_info
->rel_fptr_sec
->contents
;
3730 loc
+= ia64_info
->rel_fptr_sec
->reloc_count
++
3731 * sizeof (ElfNN_External_Rela
);
3732 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3736 /* Return the descriptor's address. */
3737 value
= (fptr_sec
->output_section
->vma
3738 + fptr_sec
->output_offset
3739 + dyn_i
->fptr_offset
);
3744 /* Fill in a PLTOFF entry consisting of the function's code address
3745 and its global pointer. Return the descriptor's address. */
3748 set_pltoff_entry (abfd
, info
, dyn_i
, value
, is_plt
)
3750 struct bfd_link_info
*info
;
3751 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3755 struct elfNN_ia64_link_hash_table
*ia64_info
;
3756 asection
*pltoff_sec
;
3758 ia64_info
= elfNN_ia64_hash_table (info
);
3759 pltoff_sec
= ia64_info
->pltoff_sec
;
3761 /* Don't do anything if this symbol uses a real PLT entry. In
3762 that case, we'll fill this in during finish_dynamic_symbol. */
3763 if ((! dyn_i
->want_plt
|| is_plt
)
3764 && !dyn_i
->pltoff_done
)
3766 bfd_vma gp
= _bfd_get_gp_value (abfd
);
3768 /* Fill in the function descriptor. */
3769 bfd_put_64 (abfd
, value
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
);
3770 bfd_put_64 (abfd
, gp
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
+ 8);
3772 /* Install dynamic relocations if needed. */
3776 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3777 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3779 unsigned int dyn_r_type
;
3781 if (bfd_big_endian (abfd
))
3782 dyn_r_type
= R_IA64_RELNNMSB
;
3784 dyn_r_type
= R_IA64_RELNNLSB
;
3786 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3787 ia64_info
->rel_pltoff_sec
,
3788 dyn_i
->pltoff_offset
,
3789 dyn_r_type
, 0, value
);
3790 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3791 ia64_info
->rel_pltoff_sec
,
3792 dyn_i
->pltoff_offset
+ ARCH_SIZE
/ 8,
3796 dyn_i
->pltoff_done
= 1;
3799 /* Return the descriptor's address. */
3800 value
= (pltoff_sec
->output_section
->vma
3801 + pltoff_sec
->output_offset
3802 + dyn_i
->pltoff_offset
);
3807 /* Return the base VMA address which should be subtracted from real addresses
3808 when resolving @tprel() relocation.
3809 Main program TLS (whose template starts at PT_TLS p_vaddr)
3810 is assigned offset round(2 * size of pointer, PT_TLS p_align). */
3813 elfNN_ia64_tprel_base (info
)
3814 struct bfd_link_info
*info
;
3816 asection
*tls_sec
= elf_hash_table (info
)->tls_sec
;
3818 BFD_ASSERT (tls_sec
!= NULL
);
3819 return tls_sec
->vma
- align_power ((bfd_vma
) ARCH_SIZE
/ 4,
3820 tls_sec
->alignment_power
);
3823 /* Return the base VMA address which should be subtracted from real addresses
3824 when resolving @dtprel() relocation.
3825 This is PT_TLS segment p_vaddr. */
3828 elfNN_ia64_dtprel_base (info
)
3829 struct bfd_link_info
*info
;
3831 BFD_ASSERT (elf_hash_table (info
)->tls_sec
!= NULL
);
3832 return elf_hash_table (info
)->tls_sec
->vma
;
3835 /* Called through qsort to sort the .IA_64.unwind section during a
3836 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3837 to the output bfd so we can do proper endianness frobbing. */
3839 static bfd
*elfNN_ia64_unwind_entry_compare_bfd
;
3842 elfNN_ia64_unwind_entry_compare (a
, b
)
3848 av
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, a
);
3849 bv
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, b
);
3851 return (av
< bv
? -1 : av
> bv
? 1 : 0);
3854 /* Make sure we've got ourselves a nice fat __gp value. */
3856 elfNN_ia64_choose_gp (abfd
, info
)
3858 struct bfd_link_info
*info
;
3860 bfd_vma min_vma
= (bfd_vma
) -1, max_vma
= 0;
3861 bfd_vma min_short_vma
= min_vma
, max_short_vma
= 0;
3862 struct elf_link_hash_entry
*gp
;
3865 struct elfNN_ia64_link_hash_table
*ia64_info
;
3867 ia64_info
= elfNN_ia64_hash_table (info
);
3869 /* Find the min and max vma of all sections marked short. Also collect
3870 min and max vma of any type, for use in selecting a nice gp. */
3871 for (os
= abfd
->sections
; os
; os
= os
->next
)
3875 if ((os
->flags
& SEC_ALLOC
) == 0)
3879 hi
= os
->vma
+ os
->size
;
3887 if (os
->flags
& SEC_SMALL_DATA
)
3889 if (min_short_vma
> lo
)
3891 if (max_short_vma
< hi
)
3896 /* See if the user wants to force a value. */
3897 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3901 && (gp
->root
.type
== bfd_link_hash_defined
3902 || gp
->root
.type
== bfd_link_hash_defweak
))
3904 asection
*gp_sec
= gp
->root
.u
.def
.section
;
3905 gp_val
= (gp
->root
.u
.def
.value
3906 + gp_sec
->output_section
->vma
3907 + gp_sec
->output_offset
);
3911 /* Pick a sensible value. */
3913 asection
*got_sec
= ia64_info
->got_sec
;
3915 /* Start with just the address of the .got. */
3917 gp_val
= got_sec
->output_section
->vma
;
3918 else if (max_short_vma
!= 0)
3919 gp_val
= min_short_vma
;
3923 /* If it is possible to address the entire image, but we
3924 don't with the choice above, adjust. */
3925 if (max_vma
- min_vma
< 0x400000
3926 && max_vma
- gp_val
<= 0x200000
3927 && gp_val
- min_vma
> 0x200000)
3928 gp_val
= min_vma
+ 0x200000;
3929 else if (max_short_vma
!= 0)
3931 /* If we don't cover all the short data, adjust. */
3932 if (max_short_vma
- gp_val
>= 0x200000)
3933 gp_val
= min_short_vma
+ 0x200000;
3935 /* If we're addressing stuff past the end, adjust back. */
3936 if (gp_val
> max_vma
)
3937 gp_val
= max_vma
- 0x200000 + 8;
3941 /* Validate whether all SHF_IA_64_SHORT sections are within
3942 range of the chosen GP. */
3944 if (max_short_vma
!= 0)
3946 if (max_short_vma
- min_short_vma
>= 0x400000)
3948 (*_bfd_error_handler
)
3949 (_("%s: short data segment overflowed (0x%lx >= 0x400000)"),
3950 bfd_get_filename (abfd
),
3951 (unsigned long) (max_short_vma
- min_short_vma
));
3954 else if ((gp_val
> min_short_vma
3955 && gp_val
- min_short_vma
> 0x200000)
3956 || (gp_val
< max_short_vma
3957 && max_short_vma
- gp_val
>= 0x200000))
3959 (*_bfd_error_handler
)
3960 (_("%s: __gp does not cover short data segment"),
3961 bfd_get_filename (abfd
));
3966 _bfd_set_gp_value (abfd
, gp_val
);
3972 elfNN_ia64_final_link (abfd
, info
)
3974 struct bfd_link_info
*info
;
3976 struct elfNN_ia64_link_hash_table
*ia64_info
;
3977 asection
*unwind_output_sec
;
3979 ia64_info
= elfNN_ia64_hash_table (info
);
3981 /* Make sure we've got ourselves a nice fat __gp value. */
3982 if (!info
->relocatable
)
3985 struct elf_link_hash_entry
*gp
;
3987 /* We assume after gp is set, section size will only decrease. We
3988 need to adjust gp for it. */
3989 _bfd_set_gp_value (abfd
, 0);
3990 if (! elfNN_ia64_choose_gp (abfd
, info
))
3992 gp_val
= _bfd_get_gp_value (abfd
);
3994 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3998 gp
->root
.type
= bfd_link_hash_defined
;
3999 gp
->root
.u
.def
.value
= gp_val
;
4000 gp
->root
.u
.def
.section
= bfd_abs_section_ptr
;
4004 /* If we're producing a final executable, we need to sort the contents
4005 of the .IA_64.unwind section. Force this section to be relocated
4006 into memory rather than written immediately to the output file. */
4007 unwind_output_sec
= NULL
;
4008 if (!info
->relocatable
)
4010 asection
*s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_unwind
);
4013 unwind_output_sec
= s
->output_section
;
4014 unwind_output_sec
->contents
4015 = bfd_malloc (unwind_output_sec
->size
);
4016 if (unwind_output_sec
->contents
== NULL
)
4021 /* Invoke the regular ELF backend linker to do all the work. */
4022 if (!bfd_elf_final_link (abfd
, info
))
4025 if (unwind_output_sec
)
4027 elfNN_ia64_unwind_entry_compare_bfd
= abfd
;
4028 qsort (unwind_output_sec
->contents
,
4029 (size_t) (unwind_output_sec
->size
/ 24),
4031 elfNN_ia64_unwind_entry_compare
);
4033 if (! bfd_set_section_contents (abfd
, unwind_output_sec
,
4034 unwind_output_sec
->contents
, (bfd_vma
) 0,
4035 unwind_output_sec
->size
))
4043 elfNN_ia64_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
4044 contents
, relocs
, local_syms
, local_sections
)
4046 struct bfd_link_info
*info
;
4048 asection
*input_section
;
4050 Elf_Internal_Rela
*relocs
;
4051 Elf_Internal_Sym
*local_syms
;
4052 asection
**local_sections
;
4054 struct elfNN_ia64_link_hash_table
*ia64_info
;
4055 Elf_Internal_Shdr
*symtab_hdr
;
4056 Elf_Internal_Rela
*rel
;
4057 Elf_Internal_Rela
*relend
;
4059 bfd_boolean ret_val
= TRUE
; /* for non-fatal errors */
4062 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
4063 ia64_info
= elfNN_ia64_hash_table (info
);
4065 /* Infect various flags from the input section to the output section. */
4066 if (info
->relocatable
)
4070 flags
= elf_section_data(input_section
)->this_hdr
.sh_flags
;
4071 flags
&= SHF_IA_64_NORECOV
;
4073 elf_section_data(input_section
->output_section
)
4074 ->this_hdr
.sh_flags
|= flags
;
4078 gp_val
= _bfd_get_gp_value (output_bfd
);
4079 srel
= get_reloc_section (input_bfd
, ia64_info
, input_section
, FALSE
);
4082 relend
= relocs
+ input_section
->reloc_count
;
4083 for (; rel
< relend
; ++rel
)
4085 struct elf_link_hash_entry
*h
;
4086 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
4087 bfd_reloc_status_type r
;
4088 reloc_howto_type
*howto
;
4089 unsigned long r_symndx
;
4090 Elf_Internal_Sym
*sym
;
4091 unsigned int r_type
;
4095 bfd_boolean dynamic_symbol_p
;
4096 bfd_boolean undef_weak_ref
;
4098 r_type
= ELFNN_R_TYPE (rel
->r_info
);
4099 if (r_type
> R_IA64_MAX_RELOC_CODE
)
4101 (*_bfd_error_handler
)
4102 (_("%B: unknown relocation type %d"),
4103 input_bfd
, (int) r_type
);
4104 bfd_set_error (bfd_error_bad_value
);
4109 howto
= lookup_howto (r_type
);
4110 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
4114 undef_weak_ref
= FALSE
;
4116 if (r_symndx
< symtab_hdr
->sh_info
)
4118 /* Reloc against local symbol. */
4120 sym
= local_syms
+ r_symndx
;
4121 sym_sec
= local_sections
[r_symndx
];
4123 value
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &msec
, rel
);
4124 if ((sym_sec
->flags
& SEC_MERGE
)
4125 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
4126 && sym_sec
->sec_info_type
== ELF_INFO_TYPE_MERGE
)
4128 struct elfNN_ia64_local_hash_entry
*loc_h
;
4130 loc_h
= get_local_sym_hash (ia64_info
, input_bfd
, rel
, FALSE
);
4131 if (loc_h
&& ! loc_h
->sec_merge_done
)
4133 struct elfNN_ia64_dyn_sym_info
*dynent
;
4135 for (dynent
= loc_h
->info
; dynent
; dynent
= dynent
->next
)
4139 _bfd_merged_section_offset (output_bfd
, &msec
,
4140 elf_section_data (msec
)->
4144 dynent
->addend
-= sym
->st_value
;
4145 dynent
->addend
+= msec
->output_section
->vma
4146 + msec
->output_offset
4147 - sym_sec
->output_section
->vma
4148 - sym_sec
->output_offset
;
4150 loc_h
->sec_merge_done
= 1;
4156 bfd_boolean unresolved_reloc
;
4158 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
4160 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
4161 r_symndx
, symtab_hdr
, sym_hashes
,
4163 unresolved_reloc
, warned
);
4165 if (h
->root
.type
== bfd_link_hash_undefweak
)
4166 undef_weak_ref
= TRUE
;
4171 hit_addr
= contents
+ rel
->r_offset
;
4172 value
+= rel
->r_addend
;
4173 dynamic_symbol_p
= elfNN_ia64_dynamic_symbol_p (h
, info
, r_type
);
4184 case R_IA64_DIR32MSB
:
4185 case R_IA64_DIR32LSB
:
4186 case R_IA64_DIR64MSB
:
4187 case R_IA64_DIR64LSB
:
4188 /* Install a dynamic relocation for this reloc. */
4189 if ((dynamic_symbol_p
|| info
->shared
)
4191 && (input_section
->flags
& SEC_ALLOC
) != 0)
4193 unsigned int dyn_r_type
;
4197 BFD_ASSERT (srel
!= NULL
);
4204 /* ??? People shouldn't be doing non-pic code in
4205 shared libraries nor dynamic executables. */
4206 (*_bfd_error_handler
)
4207 (_("%B: non-pic code with imm relocation against dynamic symbol `%s'"),
4209 h
? h
->root
.root
.string
4210 : bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4219 /* If we don't need dynamic symbol lookup, find a
4220 matching RELATIVE relocation. */
4221 dyn_r_type
= r_type
;
4222 if (dynamic_symbol_p
)
4224 dynindx
= h
->dynindx
;
4225 addend
= rel
->r_addend
;
4232 case R_IA64_DIR32MSB
:
4233 dyn_r_type
= R_IA64_REL32MSB
;
4235 case R_IA64_DIR32LSB
:
4236 dyn_r_type
= R_IA64_REL32LSB
;
4238 case R_IA64_DIR64MSB
:
4239 dyn_r_type
= R_IA64_REL64MSB
;
4241 case R_IA64_DIR64LSB
:
4242 dyn_r_type
= R_IA64_REL64LSB
;
4252 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4253 srel
, rel
->r_offset
, dyn_r_type
,
4258 case R_IA64_LTV32MSB
:
4259 case R_IA64_LTV32LSB
:
4260 case R_IA64_LTV64MSB
:
4261 case R_IA64_LTV64LSB
:
4262 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4265 case R_IA64_GPREL22
:
4266 case R_IA64_GPREL64I
:
4267 case R_IA64_GPREL32MSB
:
4268 case R_IA64_GPREL32LSB
:
4269 case R_IA64_GPREL64MSB
:
4270 case R_IA64_GPREL64LSB
:
4271 if (dynamic_symbol_p
)
4273 (*_bfd_error_handler
)
4274 (_("%B: @gprel relocation against dynamic symbol %s"),
4276 h
? h
->root
.root
.string
4277 : bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4283 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4286 case R_IA64_LTOFF22
:
4287 case R_IA64_LTOFF22X
:
4288 case R_IA64_LTOFF64I
:
4289 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4290 value
= set_got_entry (input_bfd
, info
, dyn_i
, (h
? h
->dynindx
: -1),
4291 rel
->r_addend
, value
, R_IA64_DIRNNLSB
);
4293 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4296 case R_IA64_PLTOFF22
:
4297 case R_IA64_PLTOFF64I
:
4298 case R_IA64_PLTOFF64MSB
:
4299 case R_IA64_PLTOFF64LSB
:
4300 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4301 value
= set_pltoff_entry (output_bfd
, info
, dyn_i
, value
, FALSE
);
4303 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4306 case R_IA64_FPTR64I
:
4307 case R_IA64_FPTR32MSB
:
4308 case R_IA64_FPTR32LSB
:
4309 case R_IA64_FPTR64MSB
:
4310 case R_IA64_FPTR64LSB
:
4311 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4312 if (dyn_i
->want_fptr
)
4314 if (!undef_weak_ref
)
4315 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4317 if (!dyn_i
->want_fptr
|| info
->pie
)
4320 unsigned int dyn_r_type
= r_type
;
4321 bfd_vma addend
= rel
->r_addend
;
4323 /* Otherwise, we expect the dynamic linker to create
4326 if (dyn_i
->want_fptr
)
4328 if (r_type
== R_IA64_FPTR64I
)
4330 /* We can't represent this without a dynamic symbol.
4331 Adjust the relocation to be against an output
4332 section symbol, which are always present in the
4333 dynamic symbol table. */
4334 /* ??? People shouldn't be doing non-pic code in
4335 shared libraries. Hork. */
4336 (*_bfd_error_handler
)
4337 (_("%B: linking non-pic code in a position independent executable"),
4344 dyn_r_type
= r_type
+ R_IA64_RELNNLSB
- R_IA64_FPTRNNLSB
;
4348 if (h
->dynindx
!= -1)
4349 dynindx
= h
->dynindx
;
4351 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4352 (info
, h
->root
.u
.def
.section
->owner
,
4353 global_sym_index (h
)));
4358 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4359 (info
, input_bfd
, (long) r_symndx
));
4363 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4364 srel
, rel
->r_offset
, dyn_r_type
,
4368 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4371 case R_IA64_LTOFF_FPTR22
:
4372 case R_IA64_LTOFF_FPTR64I
:
4373 case R_IA64_LTOFF_FPTR32MSB
:
4374 case R_IA64_LTOFF_FPTR32LSB
:
4375 case R_IA64_LTOFF_FPTR64MSB
:
4376 case R_IA64_LTOFF_FPTR64LSB
:
4380 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4381 if (dyn_i
->want_fptr
)
4383 BFD_ASSERT (h
== NULL
|| h
->dynindx
== -1);
4384 if (!undef_weak_ref
)
4385 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4390 /* Otherwise, we expect the dynamic linker to create
4394 if (h
->dynindx
!= -1)
4395 dynindx
= h
->dynindx
;
4397 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4398 (info
, h
->root
.u
.def
.section
->owner
,
4399 global_sym_index (h
)));
4402 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4403 (info
, input_bfd
, (long) r_symndx
));
4407 value
= set_got_entry (output_bfd
, info
, dyn_i
, dynindx
,
4408 rel
->r_addend
, value
, R_IA64_FPTRNNLSB
);
4410 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4414 case R_IA64_PCREL32MSB
:
4415 case R_IA64_PCREL32LSB
:
4416 case R_IA64_PCREL64MSB
:
4417 case R_IA64_PCREL64LSB
:
4418 /* Install a dynamic relocation for this reloc. */
4419 if (dynamic_symbol_p
&& r_symndx
!= 0)
4421 BFD_ASSERT (srel
!= NULL
);
4423 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4424 srel
, rel
->r_offset
, r_type
,
4425 h
->dynindx
, rel
->r_addend
);
4429 case R_IA64_PCREL21B
:
4430 case R_IA64_PCREL60B
:
4431 /* We should have created a PLT entry for any dynamic symbol. */
4434 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4436 if (dyn_i
&& dyn_i
->want_plt2
)
4438 /* Should have caught this earlier. */
4439 BFD_ASSERT (rel
->r_addend
== 0);
4441 value
= (ia64_info
->plt_sec
->output_section
->vma
4442 + ia64_info
->plt_sec
->output_offset
4443 + dyn_i
->plt2_offset
);
4447 /* Since there's no PLT entry, Validate that this is
4449 BFD_ASSERT (undef_weak_ref
|| sym_sec
->output_section
!= NULL
);
4451 /* If the symbol is undef_weak, we shouldn't be trying
4452 to call it. There's every chance that we'd wind up
4453 with an out-of-range fixup here. Don't bother setting
4454 any value at all. */
4460 case R_IA64_PCREL21BI
:
4461 case R_IA64_PCREL21F
:
4462 case R_IA64_PCREL21M
:
4463 case R_IA64_PCREL22
:
4464 case R_IA64_PCREL64I
:
4465 /* The PCREL21BI reloc is specifically not intended for use with
4466 dynamic relocs. PCREL21F and PCREL21M are used for speculation
4467 fixup code, and thus probably ought not be dynamic. The
4468 PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4469 if (dynamic_symbol_p
)
4473 if (r_type
== R_IA64_PCREL21BI
)
4474 msg
= _("%B: @internal branch to dynamic symbol %s");
4475 else if (r_type
== R_IA64_PCREL21F
|| r_type
== R_IA64_PCREL21M
)
4476 msg
= _("%B: speculation fixup to dynamic symbol %s");
4478 msg
= _("%B: @pcrel relocation against dynamic symbol %s");
4479 (*_bfd_error_handler
) (msg
, input_bfd
,
4480 h
? h
->root
.root
.string
4481 : bfd_elf_sym_name (input_bfd
,
4491 /* Make pc-relative. */
4492 value
-= (input_section
->output_section
->vma
4493 + input_section
->output_offset
4494 + rel
->r_offset
) & ~ (bfd_vma
) 0x3;
4495 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4498 case R_IA64_SEGREL32MSB
:
4499 case R_IA64_SEGREL32LSB
:
4500 case R_IA64_SEGREL64MSB
:
4501 case R_IA64_SEGREL64LSB
:
4504 /* If the input section was discarded from the output, then
4510 struct elf_segment_map
*m
;
4511 Elf_Internal_Phdr
*p
;
4513 /* Find the segment that contains the output_section. */
4514 for (m
= elf_tdata (output_bfd
)->segment_map
,
4515 p
= elf_tdata (output_bfd
)->phdr
;
4520 for (i
= m
->count
- 1; i
>= 0; i
--)
4521 if (m
->sections
[i
] == input_section
->output_section
)
4529 r
= bfd_reloc_notsupported
;
4533 /* The VMA of the segment is the vaddr of the associated
4535 if (value
> p
->p_vaddr
)
4536 value
-= p
->p_vaddr
;
4539 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4544 case R_IA64_SECREL32MSB
:
4545 case R_IA64_SECREL32LSB
:
4546 case R_IA64_SECREL64MSB
:
4547 case R_IA64_SECREL64LSB
:
4548 /* Make output-section relative to section where the symbol
4549 is defined. PR 475 */
4551 value
-= sym_sec
->output_section
->vma
;
4552 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4555 case R_IA64_IPLTMSB
:
4556 case R_IA64_IPLTLSB
:
4557 /* Install a dynamic relocation for this reloc. */
4558 if ((dynamic_symbol_p
|| info
->shared
)
4559 && (input_section
->flags
& SEC_ALLOC
) != 0)
4561 BFD_ASSERT (srel
!= NULL
);
4563 /* If we don't need dynamic symbol lookup, install two
4564 RELATIVE relocations. */
4565 if (!dynamic_symbol_p
)
4567 unsigned int dyn_r_type
;
4569 if (r_type
== R_IA64_IPLTMSB
)
4570 dyn_r_type
= R_IA64_REL64MSB
;
4572 dyn_r_type
= R_IA64_REL64LSB
;
4574 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4576 srel
, rel
->r_offset
,
4577 dyn_r_type
, 0, value
);
4578 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4580 srel
, rel
->r_offset
+ 8,
4581 dyn_r_type
, 0, gp_val
);
4584 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4585 srel
, rel
->r_offset
, r_type
,
4586 h
->dynindx
, rel
->r_addend
);
4589 if (r_type
== R_IA64_IPLTMSB
)
4590 r_type
= R_IA64_DIR64MSB
;
4592 r_type
= R_IA64_DIR64LSB
;
4593 elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4594 r
= elfNN_ia64_install_value (hit_addr
+ 8, gp_val
, r_type
);
4597 case R_IA64_TPREL14
:
4598 case R_IA64_TPREL22
:
4599 case R_IA64_TPREL64I
:
4600 value
-= elfNN_ia64_tprel_base (info
);
4601 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4604 case R_IA64_DTPREL14
:
4605 case R_IA64_DTPREL22
:
4606 case R_IA64_DTPREL64I
:
4607 case R_IA64_DTPREL32LSB
:
4608 case R_IA64_DTPREL32MSB
:
4609 case R_IA64_DTPREL64LSB
:
4610 case R_IA64_DTPREL64MSB
:
4611 value
-= elfNN_ia64_dtprel_base (info
);
4612 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4615 case R_IA64_LTOFF_TPREL22
:
4616 case R_IA64_LTOFF_DTPMOD22
:
4617 case R_IA64_LTOFF_DTPREL22
:
4620 long dynindx
= h
? h
->dynindx
: -1;
4621 bfd_vma r_addend
= rel
->r_addend
;
4626 case R_IA64_LTOFF_TPREL22
:
4627 if (!dynamic_symbol_p
)
4630 value
-= elfNN_ia64_tprel_base (info
);
4633 r_addend
+= value
- elfNN_ia64_dtprel_base (info
);
4637 got_r_type
= R_IA64_TPREL64LSB
;
4639 case R_IA64_LTOFF_DTPMOD22
:
4640 if (!dynamic_symbol_p
&& !info
->shared
)
4642 got_r_type
= R_IA64_DTPMOD64LSB
;
4644 case R_IA64_LTOFF_DTPREL22
:
4645 if (!dynamic_symbol_p
)
4646 value
-= elfNN_ia64_dtprel_base (info
);
4647 got_r_type
= R_IA64_DTPRELNNLSB
;
4650 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4651 value
= set_got_entry (input_bfd
, info
, dyn_i
, dynindx
, r_addend
,
4654 r
= elfNN_ia64_install_value (hit_addr
, value
, r_type
);
4659 r
= bfd_reloc_notsupported
;
4668 case bfd_reloc_undefined
:
4669 /* This can happen for global table relative relocs if
4670 __gp is undefined. This is a panic situation so we
4671 don't try to continue. */
4672 (*info
->callbacks
->undefined_symbol
)
4673 (info
, "__gp", input_bfd
, input_section
, rel
->r_offset
, 1);
4676 case bfd_reloc_notsupported
:
4681 name
= h
->root
.root
.string
;
4683 name
= bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4685 if (!(*info
->callbacks
->warning
) (info
, _("unsupported reloc"),
4687 input_section
, rel
->r_offset
))
4693 case bfd_reloc_dangerous
:
4694 case bfd_reloc_outofrange
:
4695 case bfd_reloc_overflow
:
4701 name
= h
->root
.root
.string
;
4703 name
= bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4708 case R_IA64_PCREL21B
:
4709 case R_IA64_PCREL21BI
:
4710 case R_IA64_PCREL21M
:
4711 case R_IA64_PCREL21F
:
4712 if (is_elf_hash_table (info
->hash
))
4714 /* Relaxtion is always performed for ELF output.
4715 Overflow failures for those relocations mean
4716 that the section is too big to relax. */
4717 (*_bfd_error_handler
)
4718 (_("%B: Can't relax br (%s) to `%s' at 0x%lx in section `%A' with size 0x%lx (> 0x1000000)."),
4719 input_bfd
, input_section
, howto
->name
, name
,
4720 rel
->r_offset
, input_section
->size
);
4724 if (!(*info
->callbacks
->reloc_overflow
) (info
,
4746 elfNN_ia64_finish_dynamic_symbol (output_bfd
, info
, h
, sym
)
4748 struct bfd_link_info
*info
;
4749 struct elf_link_hash_entry
*h
;
4750 Elf_Internal_Sym
*sym
;
4752 struct elfNN_ia64_link_hash_table
*ia64_info
;
4753 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
4755 ia64_info
= elfNN_ia64_hash_table (info
);
4756 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4758 /* Fill in the PLT data, if required. */
4759 if (dyn_i
&& dyn_i
->want_plt
)
4761 Elf_Internal_Rela outrel
;
4764 bfd_vma plt_addr
, pltoff_addr
, gp_val
, index
;
4766 gp_val
= _bfd_get_gp_value (output_bfd
);
4768 /* Initialize the minimal PLT entry. */
4770 index
= (dyn_i
->plt_offset
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
4771 plt_sec
= ia64_info
->plt_sec
;
4772 loc
= plt_sec
->contents
+ dyn_i
->plt_offset
;
4774 memcpy (loc
, plt_min_entry
, PLT_MIN_ENTRY_SIZE
);
4775 elfNN_ia64_install_value (loc
, index
, R_IA64_IMM22
);
4776 elfNN_ia64_install_value (loc
+2, -dyn_i
->plt_offset
, R_IA64_PCREL21B
);
4778 plt_addr
= (plt_sec
->output_section
->vma
4779 + plt_sec
->output_offset
4780 + dyn_i
->plt_offset
);
4781 pltoff_addr
= set_pltoff_entry (output_bfd
, info
, dyn_i
, plt_addr
, TRUE
);
4783 /* Initialize the FULL PLT entry, if needed. */
4784 if (dyn_i
->want_plt2
)
4786 loc
= plt_sec
->contents
+ dyn_i
->plt2_offset
;
4788 memcpy (loc
, plt_full_entry
, PLT_FULL_ENTRY_SIZE
);
4789 elfNN_ia64_install_value (loc
, pltoff_addr
- gp_val
, R_IA64_IMM22
);
4791 /* Mark the symbol as undefined, rather than as defined in the
4792 plt section. Leave the value alone. */
4793 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4794 first place. But perhaps elflink.c did some for us. */
4795 if (!h
->def_regular
)
4796 sym
->st_shndx
= SHN_UNDEF
;
4799 /* Create the dynamic relocation. */
4800 outrel
.r_offset
= pltoff_addr
;
4801 if (bfd_little_endian (output_bfd
))
4802 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTLSB
);
4804 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTMSB
);
4805 outrel
.r_addend
= 0;
4807 /* This is fun. In the .IA_64.pltoff section, we've got entries
4808 that correspond both to real PLT entries, and those that
4809 happened to resolve to local symbols but need to be created
4810 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4811 relocations for the real PLT should come at the end of the
4812 section, so that they can be indexed by plt entry at runtime.
4814 We emitted all of the relocations for the non-PLT @pltoff
4815 entries during relocate_section. So we can consider the
4816 existing sec->reloc_count to be the base of the array of
4819 loc
= ia64_info
->rel_pltoff_sec
->contents
;
4820 loc
+= ((ia64_info
->rel_pltoff_sec
->reloc_count
+ index
)
4821 * sizeof (ElfNN_External_Rela
));
4822 bfd_elfNN_swap_reloca_out (output_bfd
, &outrel
, loc
);
4825 /* Mark some specially defined symbols as absolute. */
4826 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
4827 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0
4828 || strcmp (h
->root
.root
.string
, "_PROCEDURE_LINKAGE_TABLE_") == 0)
4829 sym
->st_shndx
= SHN_ABS
;
4835 elfNN_ia64_finish_dynamic_sections (abfd
, info
)
4837 struct bfd_link_info
*info
;
4839 struct elfNN_ia64_link_hash_table
*ia64_info
;
4842 ia64_info
= elfNN_ia64_hash_table (info
);
4843 dynobj
= ia64_info
->root
.dynobj
;
4845 if (elf_hash_table (info
)->dynamic_sections_created
)
4847 ElfNN_External_Dyn
*dyncon
, *dynconend
;
4848 asection
*sdyn
, *sgotplt
;
4851 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
4852 sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
4853 BFD_ASSERT (sdyn
!= NULL
);
4854 dyncon
= (ElfNN_External_Dyn
*) sdyn
->contents
;
4855 dynconend
= (ElfNN_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
4857 gp_val
= _bfd_get_gp_value (abfd
);
4859 for (; dyncon
< dynconend
; dyncon
++)
4861 Elf_Internal_Dyn dyn
;
4863 bfd_elfNN_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4868 dyn
.d_un
.d_ptr
= gp_val
;
4872 dyn
.d_un
.d_val
= (ia64_info
->minplt_entries
4873 * sizeof (ElfNN_External_Rela
));
4877 /* See the comment above in finish_dynamic_symbol. */
4878 dyn
.d_un
.d_ptr
= (ia64_info
->rel_pltoff_sec
->output_section
->vma
4879 + ia64_info
->rel_pltoff_sec
->output_offset
4880 + (ia64_info
->rel_pltoff_sec
->reloc_count
4881 * sizeof (ElfNN_External_Rela
)));
4884 case DT_IA_64_PLT_RESERVE
:
4885 dyn
.d_un
.d_ptr
= (sgotplt
->output_section
->vma
4886 + sgotplt
->output_offset
);
4890 /* Do not have RELASZ include JMPREL. This makes things
4891 easier on ld.so. This is not what the rest of BFD set up. */
4892 dyn
.d_un
.d_val
-= (ia64_info
->minplt_entries
4893 * sizeof (ElfNN_External_Rela
));
4897 bfd_elfNN_swap_dyn_out (abfd
, &dyn
, dyncon
);
4900 /* Initialize the PLT0 entry. */
4901 if (ia64_info
->plt_sec
)
4903 bfd_byte
*loc
= ia64_info
->plt_sec
->contents
;
4906 memcpy (loc
, plt_header
, PLT_HEADER_SIZE
);
4908 pltres
= (sgotplt
->output_section
->vma
4909 + sgotplt
->output_offset
4912 elfNN_ia64_install_value (loc
+1, pltres
, R_IA64_GPREL22
);
4919 /* ELF file flag handling: */
4921 /* Function to keep IA-64 specific file flags. */
4923 elfNN_ia64_set_private_flags (abfd
, flags
)
4927 BFD_ASSERT (!elf_flags_init (abfd
)
4928 || elf_elfheader (abfd
)->e_flags
== flags
);
4930 elf_elfheader (abfd
)->e_flags
= flags
;
4931 elf_flags_init (abfd
) = TRUE
;
4935 /* Merge backend specific data from an object file to the output
4936 object file when linking. */
4938 elfNN_ia64_merge_private_bfd_data (ibfd
, obfd
)
4943 bfd_boolean ok
= TRUE
;
4945 /* Don't even pretend to support mixed-format linking. */
4946 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
4947 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
4950 in_flags
= elf_elfheader (ibfd
)->e_flags
;
4951 out_flags
= elf_elfheader (obfd
)->e_flags
;
4953 if (! elf_flags_init (obfd
))
4955 elf_flags_init (obfd
) = TRUE
;
4956 elf_elfheader (obfd
)->e_flags
= in_flags
;
4958 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
4959 && bfd_get_arch_info (obfd
)->the_default
)
4961 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
4962 bfd_get_mach (ibfd
));
4968 /* Check flag compatibility. */
4969 if (in_flags
== out_flags
)
4972 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4973 if (!(in_flags
& EF_IA_64_REDUCEDFP
) && (out_flags
& EF_IA_64_REDUCEDFP
))
4974 elf_elfheader (obfd
)->e_flags
&= ~EF_IA_64_REDUCEDFP
;
4976 if ((in_flags
& EF_IA_64_TRAPNIL
) != (out_flags
& EF_IA_64_TRAPNIL
))
4978 (*_bfd_error_handler
)
4979 (_("%B: linking trap-on-NULL-dereference with non-trapping files"),
4982 bfd_set_error (bfd_error_bad_value
);
4985 if ((in_flags
& EF_IA_64_BE
) != (out_flags
& EF_IA_64_BE
))
4987 (*_bfd_error_handler
)
4988 (_("%B: linking big-endian files with little-endian files"),
4991 bfd_set_error (bfd_error_bad_value
);
4994 if ((in_flags
& EF_IA_64_ABI64
) != (out_flags
& EF_IA_64_ABI64
))
4996 (*_bfd_error_handler
)
4997 (_("%B: linking 64-bit files with 32-bit files"),
5000 bfd_set_error (bfd_error_bad_value
);
5003 if ((in_flags
& EF_IA_64_CONS_GP
) != (out_flags
& EF_IA_64_CONS_GP
))
5005 (*_bfd_error_handler
)
5006 (_("%B: linking constant-gp files with non-constant-gp files"),
5009 bfd_set_error (bfd_error_bad_value
);
5012 if ((in_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
)
5013 != (out_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
))
5015 (*_bfd_error_handler
)
5016 (_("%B: linking auto-pic files with non-auto-pic files"),
5019 bfd_set_error (bfd_error_bad_value
);
5027 elfNN_ia64_print_private_bfd_data (abfd
, ptr
)
5031 FILE *file
= (FILE *) ptr
;
5032 flagword flags
= elf_elfheader (abfd
)->e_flags
;
5034 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
5036 fprintf (file
, "private flags = %s%s%s%s%s%s%s%s\n",
5037 (flags
& EF_IA_64_TRAPNIL
) ? "TRAPNIL, " : "",
5038 (flags
& EF_IA_64_EXT
) ? "EXT, " : "",
5039 (flags
& EF_IA_64_BE
) ? "BE, " : "LE, ",
5040 (flags
& EF_IA_64_REDUCEDFP
) ? "REDUCEDFP, " : "",
5041 (flags
& EF_IA_64_CONS_GP
) ? "CONS_GP, " : "",
5042 (flags
& EF_IA_64_NOFUNCDESC_CONS_GP
) ? "NOFUNCDESC_CONS_GP, " : "",
5043 (flags
& EF_IA_64_ABSOLUTE
) ? "ABSOLUTE, " : "",
5044 (flags
& EF_IA_64_ABI64
) ? "ABI64" : "ABI32");
5046 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
5050 static enum elf_reloc_type_class
5051 elfNN_ia64_reloc_type_class (rela
)
5052 const Elf_Internal_Rela
*rela
;
5054 switch ((int) ELFNN_R_TYPE (rela
->r_info
))
5056 case R_IA64_REL32MSB
:
5057 case R_IA64_REL32LSB
:
5058 case R_IA64_REL64MSB
:
5059 case R_IA64_REL64LSB
:
5060 return reloc_class_relative
;
5061 case R_IA64_IPLTMSB
:
5062 case R_IA64_IPLTLSB
:
5063 return reloc_class_plt
;
5065 return reloc_class_copy
;
5067 return reloc_class_normal
;
5071 static const struct bfd_elf_special_section elfNN_ia64_special_sections
[] =
5073 { ".sbss", 5, -1, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
5074 { ".sdata", 6, -1, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
5075 { NULL
, 0, 0, 0, 0 }
5079 elfNN_ia64_object_p (bfd
*abfd
)
5082 asection
*group
, *unwi
, *unw
;
5085 char *unwi_name
, *unw_name
;
5088 if (abfd
->flags
& DYNAMIC
)
5091 /* Flags for fake group section. */
5092 flags
= (SEC_LINKER_CREATED
| SEC_GROUP
| SEC_LINK_ONCE
5095 /* We add a fake section group for each .gnu.linkonce.t.* section,
5096 which isn't in a section group, and its unwind sections. */
5097 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
5099 if (elf_sec_group (sec
) == NULL
5100 && ((sec
->flags
& (SEC_LINK_ONCE
| SEC_CODE
| SEC_GROUP
))
5101 == (SEC_LINK_ONCE
| SEC_CODE
))
5102 && strncmp (sec
->name
, ".gnu.linkonce.t.", 16) == 0)
5104 name
= sec
->name
+ 16;
5106 amt
= strlen (name
) + sizeof (".gnu.linkonce.ia64unwi.");
5107 unwi_name
= bfd_alloc (abfd
, amt
);
5111 strcpy (stpcpy (unwi_name
, ".gnu.linkonce.ia64unwi."), name
);
5112 unwi
= bfd_get_section_by_name (abfd
, unwi_name
);
5114 amt
= strlen (name
) + sizeof (".gnu.linkonce.ia64unw.");
5115 unw_name
= bfd_alloc (abfd
, amt
);
5119 strcpy (stpcpy (unw_name
, ".gnu.linkonce.ia64unw."), name
);
5120 unw
= bfd_get_section_by_name (abfd
, unw_name
);
5122 /* We need to create a fake group section for it and its
5124 group
= bfd_make_section_anyway_with_flags (abfd
, name
,
5129 /* Move the fake group section to the beginning. */
5130 bfd_section_list_remove (abfd
, group
);
5131 bfd_section_list_prepend (abfd
, group
);
5133 elf_next_in_group (group
) = sec
;
5135 elf_group_name (sec
) = name
;
5136 elf_next_in_group (sec
) = sec
;
5137 elf_sec_group (sec
) = group
;
5141 elf_group_name (unwi
) = name
;
5142 elf_next_in_group (unwi
) = sec
;
5143 elf_next_in_group (sec
) = unwi
;
5144 elf_sec_group (unwi
) = group
;
5149 elf_group_name (unw
) = name
;
5152 elf_next_in_group (unw
) = elf_next_in_group (unwi
);
5153 elf_next_in_group (unwi
) = unw
;
5157 elf_next_in_group (unw
) = sec
;
5158 elf_next_in_group (sec
) = unw
;
5160 elf_sec_group (unw
) = group
;
5163 /* Fake SHT_GROUP section header. */
5164 elf_section_data (group
)->this_hdr
.bfd_section
= group
;
5165 elf_section_data (group
)->this_hdr
.sh_type
= SHT_GROUP
;
5172 elfNN_ia64_hpux_vec (const bfd_target
*vec
)
5174 extern const bfd_target bfd_elfNN_ia64_hpux_big_vec
;
5175 return (vec
== & bfd_elfNN_ia64_hpux_big_vec
);
5179 elfNN_hpux_post_process_headers (abfd
, info
)
5181 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
5183 Elf_Internal_Ehdr
*i_ehdrp
= elf_elfheader (abfd
);
5185 i_ehdrp
->e_ident
[EI_OSABI
] = ELFOSABI_HPUX
;
5186 i_ehdrp
->e_ident
[EI_ABIVERSION
] = 1;
5190 elfNN_hpux_backend_section_from_bfd_section (abfd
, sec
, retval
)
5191 bfd
*abfd ATTRIBUTE_UNUSED
;
5195 if (bfd_is_com_section (sec
))
5197 *retval
= SHN_IA_64_ANSI_COMMON
;
5204 elfNN_hpux_backend_symbol_processing (bfd
*abfd ATTRIBUTE_UNUSED
,
5207 elf_symbol_type
*elfsym
= (elf_symbol_type
*) asym
;
5209 switch (elfsym
->internal_elf_sym
.st_shndx
)
5211 case SHN_IA_64_ANSI_COMMON
:
5212 asym
->section
= bfd_com_section_ptr
;
5213 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
5214 asym
->flags
&= ~BSF_GLOBAL
;
5220 #define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
5221 #define TARGET_LITTLE_NAME "elfNN-ia64-little"
5222 #define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec
5223 #define TARGET_BIG_NAME "elfNN-ia64-big"
5224 #define ELF_ARCH bfd_arch_ia64
5225 #define ELF_MACHINE_CODE EM_IA_64
5226 #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
5227 #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
5228 #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
5230 #define elf_backend_section_from_shdr \
5231 elfNN_ia64_section_from_shdr
5232 #define elf_backend_section_flags \
5233 elfNN_ia64_section_flags
5234 #define elf_backend_fake_sections \
5235 elfNN_ia64_fake_sections
5236 #define elf_backend_final_write_processing \
5237 elfNN_ia64_final_write_processing
5238 #define elf_backend_add_symbol_hook \
5239 elfNN_ia64_add_symbol_hook
5240 #define elf_backend_additional_program_headers \
5241 elfNN_ia64_additional_program_headers
5242 #define elf_backend_modify_segment_map \
5243 elfNN_ia64_modify_segment_map
5244 #define elf_info_to_howto \
5245 elfNN_ia64_info_to_howto
5247 #define bfd_elfNN_bfd_reloc_type_lookup \
5248 elfNN_ia64_reloc_type_lookup
5249 #define bfd_elfNN_bfd_is_local_label_name \
5250 elfNN_ia64_is_local_label_name
5251 #define bfd_elfNN_bfd_relax_section \
5252 elfNN_ia64_relax_section
5254 #define elf_backend_object_p \
5257 /* Stuff for the BFD linker: */
5258 #define bfd_elfNN_bfd_link_hash_table_create \
5259 elfNN_ia64_hash_table_create
5260 #define bfd_elfNN_bfd_link_hash_table_free \
5261 elfNN_ia64_hash_table_free
5262 #define elf_backend_create_dynamic_sections \
5263 elfNN_ia64_create_dynamic_sections
5264 #define elf_backend_check_relocs \
5265 elfNN_ia64_check_relocs
5266 #define elf_backend_adjust_dynamic_symbol \
5267 elfNN_ia64_adjust_dynamic_symbol
5268 #define elf_backend_size_dynamic_sections \
5269 elfNN_ia64_size_dynamic_sections
5270 #define elf_backend_relocate_section \
5271 elfNN_ia64_relocate_section
5272 #define elf_backend_finish_dynamic_symbol \
5273 elfNN_ia64_finish_dynamic_symbol
5274 #define elf_backend_finish_dynamic_sections \
5275 elfNN_ia64_finish_dynamic_sections
5276 #define bfd_elfNN_bfd_final_link \
5277 elfNN_ia64_final_link
5279 #define bfd_elfNN_bfd_merge_private_bfd_data \
5280 elfNN_ia64_merge_private_bfd_data
5281 #define bfd_elfNN_bfd_set_private_flags \
5282 elfNN_ia64_set_private_flags
5283 #define bfd_elfNN_bfd_print_private_bfd_data \
5284 elfNN_ia64_print_private_bfd_data
5286 #define elf_backend_plt_readonly 1
5287 #define elf_backend_want_plt_sym 0
5288 #define elf_backend_plt_alignment 5
5289 #define elf_backend_got_header_size 0
5290 #define elf_backend_want_got_plt 1
5291 #define elf_backend_may_use_rel_p 1
5292 #define elf_backend_may_use_rela_p 1
5293 #define elf_backend_default_use_rela_p 1
5294 #define elf_backend_want_dynbss 0
5295 #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
5296 #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
5297 #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
5298 #define elf_backend_rela_normal 1
5299 #define elf_backend_special_sections elfNN_ia64_special_sections
5301 /* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with
5302 SHF_LINK_ORDER. But it doesn't set theh sh_link or sh_info fields.
5303 We don't want to flood users with so many error messages. We turn
5304 off the warning for now. It will be turned on later when the Intel
5305 compiler is fixed. */
5306 #define elf_backend_link_order_error_handler NULL
5308 #include "elfNN-target.h"
5310 /* HPUX-specific vectors. */
5312 #undef TARGET_LITTLE_SYM
5313 #undef TARGET_LITTLE_NAME
5314 #undef TARGET_BIG_SYM
5315 #define TARGET_BIG_SYM bfd_elfNN_ia64_hpux_big_vec
5316 #undef TARGET_BIG_NAME
5317 #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
5319 /* These are HP-UX specific functions. */
5321 #undef elf_backend_post_process_headers
5322 #define elf_backend_post_process_headers elfNN_hpux_post_process_headers
5324 #undef elf_backend_section_from_bfd_section
5325 #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
5327 #undef elf_backend_symbol_processing
5328 #define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
5330 #undef elf_backend_want_p_paddr_set_to_zero
5331 #define elf_backend_want_p_paddr_set_to_zero 1
5333 #undef ELF_MAXPAGESIZE
5334 #define ELF_MAXPAGESIZE 0x1000 /* 1K */
5337 #define elfNN_bed elfNN_ia64_hpux_bed
5339 #include "elfNN-target.h"
5341 #undef elf_backend_want_p_paddr_set_to_zero