1 /* IA-64 support for 64-bit ELF
2 Copyright 1998, 1999, 2000 Free Software Foundation, Inc.
3 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
25 #include "opcode/ia64.h"
30 * THE RULES for all the stuff the linker creates --
32 * GOT Entries created in response to LTOFF or LTOFF_FPTR
33 * relocations. Dynamic relocs created for dynamic
34 * symbols in an application; REL relocs for locals
35 * in a shared library.
37 * FPTR The canonical function descriptor. Created for local
38 * symbols in applications. Descriptors for dynamic symbols
39 * and local symbols in shared libraries are created by
40 * ld.so. Thus there are no dynamic relocs against these
41 * objects. The FPTR relocs for such _are_ passed through
42 * to the dynamic relocation tables.
44 * FULL_PLT Created for a PCREL21B relocation against a dynamic symbol.
45 * Requires the creation of a PLTOFF entry. This does not
46 * require any dynamic relocations.
48 * PLTOFF Created by PLTOFF relocations. For local symbols, this
49 * is an alternate function descriptor, and in shared libraries
50 * requires two REL relocations. Note that this cannot be
51 * transformed into an FPTR relocation, since it must be in
52 * range of the GP. For dynamic symbols, this is a function
53 * descriptor for a MIN_PLT entry, and requires one IPLT reloc.
55 * MIN_PLT Created by PLTOFF entries against dynamic symbols. This
56 * does not reqire dynamic relocations.
59 #define USE_RELA /* we want RELA relocs, not REL */
61 #define NELEMS(a) ((int) (sizeof (a) / sizeof ((a)[0])))
63 typedef struct bfd_hash_entry
*(*new_hash_entry_func
)
64 PARAMS ((struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *));
66 /* In dynamically (linker-) created sections, we generally need to keep track
67 of the place a symbol or expression got allocated to. This is done via hash
68 tables that store entries of the following type. */
70 struct elfNN_ia64_dyn_sym_info
72 /* The addend for which this entry is relevant. */
75 /* Next addend in the list. */
76 struct elfNN_ia64_dyn_sym_info
*next
;
80 bfd_vma pltoff_offset
;
84 /* The symbol table entry, if any, that this was derrived from. */
85 struct elf_link_hash_entry
*h
;
87 /* Used to count non-got, non-plt relocations for delayed sizing
88 of relocation sections. */
89 struct elfNN_ia64_dyn_reloc_entry
91 struct elfNN_ia64_dyn_reloc_entry
*next
;
97 /* True when the section contents have been updated. */
98 unsigned got_done
: 1;
99 unsigned fptr_done
: 1;
100 unsigned pltoff_done
: 1;
102 /* True for the different kinds of linker data we want created. */
103 unsigned want_got
: 1;
104 unsigned want_fptr
: 1;
105 unsigned want_ltoff_fptr
: 1;
106 unsigned want_plt
: 1;
107 unsigned want_plt2
: 1;
108 unsigned want_pltoff
: 1;
111 struct elfNN_ia64_local_hash_entry
113 struct bfd_hash_entry root
;
114 struct elfNN_ia64_dyn_sym_info
*info
;
117 struct elfNN_ia64_local_hash_table
119 struct bfd_hash_table root
;
120 /* No additional fields for now. */
123 struct elfNN_ia64_link_hash_entry
125 struct elf_link_hash_entry root
;
126 struct elfNN_ia64_dyn_sym_info
*info
;
129 struct elfNN_ia64_link_hash_table
131 /* The main hash table */
132 struct elf_link_hash_table root
;
134 asection
*got_sec
; /* the linkage table section (or NULL) */
135 asection
*rel_got_sec
; /* dynamic relocation section for same */
136 asection
*fptr_sec
; /* function descriptor table (or NULL) */
137 asection
*plt_sec
; /* the primary plt section (or NULL) */
138 asection
*pltoff_sec
; /* private descriptors for plt (or NULL) */
139 asection
*rel_pltoff_sec
; /* dynamic relocation section for same */
141 bfd_size_type minplt_entries
; /* number of minplt entries */
143 struct elfNN_ia64_local_hash_table loc_hash_table
;
146 #define elfNN_ia64_hash_table(p) \
147 ((struct elfNN_ia64_link_hash_table *) ((p)->hash))
149 static bfd_reloc_status_type elfNN_ia64_reloc
150 PARAMS ((bfd
*abfd
, arelent
*reloc
, asymbol
*sym
, PTR data
,
151 asection
*input_section
, bfd
*output_bfd
, char **error_message
));
152 static reloc_howto_type
* lookup_howto
153 PARAMS ((unsigned int rtype
));
154 static reloc_howto_type
*elfNN_ia64_reloc_type_lookup
155 PARAMS ((bfd
*abfd
, bfd_reloc_code_real_type bfd_code
));
156 static void elfNN_ia64_info_to_howto
157 PARAMS ((bfd
*abfd
, arelent
*bfd_reloc
, ElfNN_Internal_Rela
*elf_reloc
));
158 static boolean elfNN_ia64_relax_section
159 PARAMS((bfd
*abfd
, asection
*sec
, struct bfd_link_info
*link_info
,
161 static boolean elfNN_ia64_section_from_shdr
162 PARAMS ((bfd
*, ElfNN_Internal_Shdr
*, char *));
163 static boolean elfNN_ia64_fake_sections
164 PARAMS ((bfd
*abfd
, ElfNN_Internal_Shdr
*hdr
, asection
*sec
));
165 static boolean elfNN_ia64_add_symbol_hook
166 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, const Elf_Internal_Sym
*sym
,
167 const char **namep
, flagword
*flagsp
, asection
**secp
,
169 static int elfNN_ia64_additional_program_headers
170 PARAMS ((bfd
*abfd
));
171 static boolean elfNN_ia64_is_local_label_name
172 PARAMS ((bfd
*abfd
, const char *name
));
173 static boolean elfNN_ia64_dynamic_symbol_p
174 PARAMS ((struct elf_link_hash_entry
*h
, struct bfd_link_info
*info
));
175 static boolean elfNN_ia64_local_hash_table_init
176 PARAMS ((struct elfNN_ia64_local_hash_table
*ht
, bfd
*abfd
,
177 new_hash_entry_func
new));
178 static struct bfd_hash_entry
*elfNN_ia64_new_loc_hash_entry
179 PARAMS ((struct bfd_hash_entry
*entry
, struct bfd_hash_table
*table
,
180 const char *string
));
181 static struct bfd_hash_entry
*elfNN_ia64_new_elf_hash_entry
182 PARAMS ((struct bfd_hash_entry
*entry
, struct bfd_hash_table
*table
,
183 const char *string
));
184 static struct bfd_link_hash_table
*elfNN_ia64_hash_table_create
185 PARAMS ((bfd
*abfd
));
186 static struct elfNN_ia64_local_hash_entry
*elfNN_ia64_local_hash_lookup
187 PARAMS ((struct elfNN_ia64_local_hash_table
*table
, const char *string
,
188 boolean create
, boolean copy
));
189 static void elfNN_ia64_dyn_sym_traverse
190 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
191 boolean (*func
)(struct elfNN_ia64_dyn_sym_info
*, PTR
),
193 static boolean elfNN_ia64_create_dynamic_sections
194 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
195 static struct elfNN_ia64_dyn_sym_info
* get_dyn_sym_info
196 PARAMS ((struct elfNN_ia64_link_hash_table
*ia64_info
,
197 struct elf_link_hash_entry
*h
,
198 bfd
*abfd
, const Elf_Internal_Rela
*rel
, boolean create
));
199 static asection
*get_got
200 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
201 struct elfNN_ia64_link_hash_table
*ia64_info
));
202 static asection
*get_fptr
203 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
204 struct elfNN_ia64_link_hash_table
*ia64_info
));
205 static asection
*get_pltoff
206 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
207 struct elfNN_ia64_link_hash_table
*ia64_info
));
208 static asection
*get_reloc_section
209 PARAMS ((bfd
*abfd
, struct elfNN_ia64_link_hash_table
*ia64_info
,
210 asection
*sec
, boolean create
));
211 static boolean count_dyn_reloc
212 PARAMS ((bfd
*abfd
, struct elfNN_ia64_dyn_sym_info
*dyn_i
,
213 asection
*srel
, int type
));
214 static boolean elfNN_ia64_check_relocs
215 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
216 const Elf_Internal_Rela
*relocs
));
217 static boolean elfNN_ia64_adjust_dynamic_symbol
218 PARAMS ((struct bfd_link_info
*info
, struct elf_link_hash_entry
*h
));
219 static unsigned long global_sym_index
220 PARAMS ((struct elf_link_hash_entry
*h
));
221 static boolean allocate_fptr
222 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
223 static boolean allocate_global_data_got
224 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
225 static boolean allocate_global_fptr_got
226 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
227 static boolean allocate_local_got
228 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
229 static boolean allocate_pltoff_entries
230 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
231 static boolean allocate_plt_entries
232 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
233 static boolean allocate_plt2_entries
234 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
235 static boolean allocate_dynrel_entries
236 PARAMS ((struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
));
237 static boolean elfNN_ia64_size_dynamic_sections
238 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
));
239 static bfd_reloc_status_type elfNN_ia64_install_value
240 PARAMS ((bfd
*abfd
, bfd_byte
*hit_addr
, bfd_vma val
, unsigned int r_type
));
241 static void elfNN_ia64_install_dyn_reloc
242 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
, asection
*sec
,
243 asection
*srel
, bfd_vma offset
, unsigned int type
,
244 long dynindx
, bfd_vma addend
));
245 static bfd_vma set_got_entry
246 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
247 struct elfNN_ia64_dyn_sym_info
*dyn_i
, long dynindx
,
248 bfd_vma addend
, bfd_vma value
, unsigned int dyn_r_type
));
249 static bfd_vma set_fptr_entry
250 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
251 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
253 static bfd_vma set_pltoff_entry
254 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
,
255 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
256 bfd_vma value
, boolean
));
257 static boolean elfNN_ia64_final_link
258 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
259 static boolean elfNN_ia64_relocate_section
260 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
, bfd
*input_bfd
,
261 asection
*input_section
, bfd_byte
*contents
,
262 Elf_Internal_Rela
*relocs
, Elf_Internal_Sym
*local_syms
,
263 asection
**local_sections
));
264 static boolean elfNN_ia64_finish_dynamic_symbol
265 PARAMS ((bfd
*output_bfd
, struct bfd_link_info
*info
,
266 struct elf_link_hash_entry
*h
, Elf_Internal_Sym
*sym
));
267 static boolean elfNN_ia64_finish_dynamic_sections
268 PARAMS ((bfd
*abfd
, struct bfd_link_info
*info
));
269 static boolean elfNN_ia64_set_private_flags
270 PARAMS ((bfd
*abfd
, flagword flags
));
271 static boolean elfNN_ia64_copy_private_bfd_data
272 PARAMS ((bfd
*ibfd
, bfd
*obfd
));
273 static boolean elfNN_ia64_merge_private_bfd_data
274 PARAMS ((bfd
*ibfd
, bfd
*obfd
));
275 static boolean elfNN_ia64_print_private_bfd_data
276 PARAMS ((bfd
*abfd
, PTR ptr
));
279 /* ia64-specific relocation */
281 /* Perform a relocation. Not much to do here as all the hard work is
282 done in elfNN_ia64_final_link_relocate. */
283 static bfd_reloc_status_type
284 elfNN_ia64_reloc (abfd
, reloc
, sym
, data
, input_section
,
285 output_bfd
, error_message
)
286 bfd
*abfd ATTRIBUTE_UNUSED
;
288 asymbol
*sym ATTRIBUTE_UNUSED
;
289 PTR data ATTRIBUTE_UNUSED
;
290 asection
*input_section
;
292 char **error_message
;
296 reloc
->address
+= input_section
->output_offset
;
299 *error_message
= "Unsupported call to elfNN_ia64_reloc";
300 return bfd_reloc_notsupported
;
303 #define IA64_HOWTO(TYPE, NAME, SIZE, PCREL, IN) \
304 HOWTO (TYPE, 0, SIZE, 0, PCREL, 0, complain_overflow_signed, \
305 elfNN_ia64_reloc, NAME, false, 0, 0, IN)
307 /* This table has to be sorted according to increasing number of the
309 static reloc_howto_type ia64_howto_table
[] =
311 IA64_HOWTO (R_IA64_NONE
, "NONE", 0, false, true),
313 IA64_HOWTO (R_IA64_IMM14
, "IMM14", 0, false, true),
314 IA64_HOWTO (R_IA64_IMM22
, "IMM22", 0, false, true),
315 IA64_HOWTO (R_IA64_IMM64
, "IMM64", 0, false, true),
316 IA64_HOWTO (R_IA64_DIR32MSB
, "DIR32MSB", 2, false, true),
317 IA64_HOWTO (R_IA64_DIR32LSB
, "DIR32LSB", 2, false, true),
318 IA64_HOWTO (R_IA64_DIR64MSB
, "DIR64MSB", 4, false, true),
319 IA64_HOWTO (R_IA64_DIR64LSB
, "DIR64LSB", 4, false, true),
321 IA64_HOWTO (R_IA64_GPREL22
, "GPREL22", 0, false, true),
322 IA64_HOWTO (R_IA64_GPREL64I
, "GPREL64I", 0, false, true),
323 IA64_HOWTO (R_IA64_GPREL32MSB
, "GPREL32MSB", 2, false, true),
324 IA64_HOWTO (R_IA64_GPREL32LSB
, "GPREL32LSB", 2, false, true),
325 IA64_HOWTO (R_IA64_GPREL64MSB
, "GPREL64MSB", 4, false, true),
326 IA64_HOWTO (R_IA64_GPREL64LSB
, "GPREL64LSB", 4, false, true),
328 IA64_HOWTO (R_IA64_LTOFF22
, "LTOFF22", 0, false, true),
329 IA64_HOWTO (R_IA64_LTOFF64I
, "LTOFF64I", 0, false, true),
331 IA64_HOWTO (R_IA64_PLTOFF22
, "PLTOFF22", 0, false, true),
332 IA64_HOWTO (R_IA64_PLTOFF64I
, "PLTOFF64I", 0, false, true),
333 IA64_HOWTO (R_IA64_PLTOFF64MSB
, "PLTOFF64MSB", 4, false, true),
334 IA64_HOWTO (R_IA64_PLTOFF64LSB
, "PLTOFF64LSB", 4, false, true),
336 IA64_HOWTO (R_IA64_FPTR64I
, "FPTR64I", 0, false, true),
337 IA64_HOWTO (R_IA64_FPTR32MSB
, "FPTR32MSB", 2, false, true),
338 IA64_HOWTO (R_IA64_FPTR32LSB
, "FPTR32LSB", 2, false, true),
339 IA64_HOWTO (R_IA64_FPTR64MSB
, "FPTR64MSB", 4, false, true),
340 IA64_HOWTO (R_IA64_FPTR64LSB
, "FPTR64LSB", 4, false, true),
342 IA64_HOWTO (R_IA64_PCREL60B
, "PCREL60B", 0, true, true),
343 IA64_HOWTO (R_IA64_PCREL21B
, "PCREL21B", 0, true, true),
344 IA64_HOWTO (R_IA64_PCREL21M
, "PCREL21M", 0, true, true),
345 IA64_HOWTO (R_IA64_PCREL21F
, "PCREL21F", 0, true, true),
346 IA64_HOWTO (R_IA64_PCREL32MSB
, "PCREL32MSB", 2, true, true),
347 IA64_HOWTO (R_IA64_PCREL32LSB
, "PCREL32LSB", 2, true, true),
348 IA64_HOWTO (R_IA64_PCREL64MSB
, "PCREL64MSB", 4, true, true),
349 IA64_HOWTO (R_IA64_PCREL64LSB
, "PCREL64LSB", 4, true, true),
351 IA64_HOWTO (R_IA64_LTOFF_FPTR22
, "LTOFF_FPTR22", 0, false, true),
352 IA64_HOWTO (R_IA64_LTOFF_FPTR64I
, "LTOFF_FPTR64I", 0, false, true),
353 IA64_HOWTO (R_IA64_LTOFF_FPTR64MSB
, "LTOFF_FPTR64MSB", 4, false, true),
354 IA64_HOWTO (R_IA64_LTOFF_FPTR64LSB
, "LTOFF_FPTR64LSB", 4, false, true),
356 IA64_HOWTO (R_IA64_SEGREL32MSB
, "SEGREL32MSB", 2, false, true),
357 IA64_HOWTO (R_IA64_SEGREL32LSB
, "SEGREL32LSB", 2, false, true),
358 IA64_HOWTO (R_IA64_SEGREL64MSB
, "SEGREL64MSB", 4, false, true),
359 IA64_HOWTO (R_IA64_SEGREL64LSB
, "SEGREL64LSB", 4, false, true),
361 IA64_HOWTO (R_IA64_SECREL32MSB
, "SECREL32MSB", 2, false, true),
362 IA64_HOWTO (R_IA64_SECREL32LSB
, "SECREL32LSB", 2, false, true),
363 IA64_HOWTO (R_IA64_SECREL64MSB
, "SECREL64MSB", 4, false, true),
364 IA64_HOWTO (R_IA64_SECREL64LSB
, "SECREL64LSB", 4, false, true),
366 IA64_HOWTO (R_IA64_REL32MSB
, "REL32MSB", 2, false, true),
367 IA64_HOWTO (R_IA64_REL32LSB
, "REL32LSB", 2, false, true),
368 IA64_HOWTO (R_IA64_REL64MSB
, "REL64MSB", 4, false, true),
369 IA64_HOWTO (R_IA64_REL64LSB
, "REL64LSB", 4, false, true),
371 IA64_HOWTO (R_IA64_LTV32MSB
, "LTV32MSB", 2, false, true),
372 IA64_HOWTO (R_IA64_LTV32LSB
, "LTV32LSB", 2, false, true),
373 IA64_HOWTO (R_IA64_LTV64MSB
, "LTV64MSB", 4, false, true),
374 IA64_HOWTO (R_IA64_LTV64LSB
, "LTV64LSB", 4, false, true),
376 IA64_HOWTO (R_IA64_PCREL21BI
, "PCREL21BI", 0, true, true),
377 IA64_HOWTO (R_IA64_PCREL22
, "PCREL22", 0, true, true),
378 IA64_HOWTO (R_IA64_PCREL64I
, "PCREL64I", 0, true, true),
380 IA64_HOWTO (R_IA64_IPLTMSB
, "IPLTMSB", 4, false, true),
381 IA64_HOWTO (R_IA64_IPLTLSB
, "IPLTLSB", 4, false, true),
382 IA64_HOWTO (R_IA64_COPY
, "COPY", 4, false, true),
383 IA64_HOWTO (R_IA64_LTOFF22X
, "LTOFF22X", 0, false, true),
384 IA64_HOWTO (R_IA64_LDXMOV
, "LDXMOV", 0, false, true),
386 IA64_HOWTO (R_IA64_TPREL22
, "TPREL22", 0, false, false),
387 IA64_HOWTO (R_IA64_TPREL64MSB
, "TPREL64MSB", 8, false, false),
388 IA64_HOWTO (R_IA64_TPREL64LSB
, "TPREL64LSB", 8, false, false),
389 IA64_HOWTO (R_IA64_LTOFF_TP22
, "LTOFF_TP22", 0, false, false),
392 static unsigned char elf_code_to_howto_index
[R_IA64_MAX_RELOC_CODE
+ 1];
394 /* Given a BFD reloc type, return the matching HOWTO structure. */
396 static reloc_howto_type
*
400 static int inited
= 0;
407 memset (elf_code_to_howto_index
, 0xff, sizeof (elf_code_to_howto_index
));
408 for (i
= 0; i
< NELEMS (ia64_howto_table
); ++i
)
409 elf_code_to_howto_index
[ia64_howto_table
[i
].type
] = i
;
412 BFD_ASSERT (rtype
<= R_IA64_MAX_RELOC_CODE
);
413 i
= elf_code_to_howto_index
[rtype
];
414 if (i
>= NELEMS (ia64_howto_table
))
416 return ia64_howto_table
+ i
;
419 static reloc_howto_type
*
420 elfNN_ia64_reloc_type_lookup (abfd
, bfd_code
)
421 bfd
*abfd ATTRIBUTE_UNUSED
;
422 bfd_reloc_code_real_type bfd_code
;
428 case BFD_RELOC_NONE
: rtype
= R_IA64_NONE
; break;
430 case BFD_RELOC_IA64_IMM14
: rtype
= R_IA64_IMM14
; break;
431 case BFD_RELOC_IA64_IMM22
: rtype
= R_IA64_IMM22
; break;
432 case BFD_RELOC_IA64_IMM64
: rtype
= R_IA64_IMM64
; break;
434 case BFD_RELOC_IA64_DIR32MSB
: rtype
= R_IA64_DIR32MSB
; break;
435 case BFD_RELOC_IA64_DIR32LSB
: rtype
= R_IA64_DIR32LSB
; break;
436 case BFD_RELOC_IA64_DIR64MSB
: rtype
= R_IA64_DIR64MSB
; break;
437 case BFD_RELOC_IA64_DIR64LSB
: rtype
= R_IA64_DIR64LSB
; break;
439 case BFD_RELOC_IA64_GPREL22
: rtype
= R_IA64_GPREL22
; break;
440 case BFD_RELOC_IA64_GPREL64I
: rtype
= R_IA64_GPREL64I
; break;
441 case BFD_RELOC_IA64_GPREL32MSB
: rtype
= R_IA64_GPREL32MSB
; break;
442 case BFD_RELOC_IA64_GPREL32LSB
: rtype
= R_IA64_GPREL32LSB
; break;
443 case BFD_RELOC_IA64_GPREL64MSB
: rtype
= R_IA64_GPREL64MSB
; break;
444 case BFD_RELOC_IA64_GPREL64LSB
: rtype
= R_IA64_GPREL64LSB
; break;
446 case BFD_RELOC_IA64_LTOFF22
: rtype
= R_IA64_LTOFF22
; break;
447 case BFD_RELOC_IA64_LTOFF64I
: rtype
= R_IA64_LTOFF64I
; break;
449 case BFD_RELOC_IA64_PLTOFF22
: rtype
= R_IA64_PLTOFF22
; break;
450 case BFD_RELOC_IA64_PLTOFF64I
: rtype
= R_IA64_PLTOFF64I
; break;
451 case BFD_RELOC_IA64_PLTOFF64MSB
: rtype
= R_IA64_PLTOFF64MSB
; break;
452 case BFD_RELOC_IA64_PLTOFF64LSB
: rtype
= R_IA64_PLTOFF64LSB
; break;
453 case BFD_RELOC_IA64_FPTR64I
: rtype
= R_IA64_FPTR64I
; break;
454 case BFD_RELOC_IA64_FPTR32MSB
: rtype
= R_IA64_FPTR32MSB
; break;
455 case BFD_RELOC_IA64_FPTR32LSB
: rtype
= R_IA64_FPTR32LSB
; break;
456 case BFD_RELOC_IA64_FPTR64MSB
: rtype
= R_IA64_FPTR64MSB
; break;
457 case BFD_RELOC_IA64_FPTR64LSB
: rtype
= R_IA64_FPTR64LSB
; break;
459 case BFD_RELOC_IA64_PCREL21B
: rtype
= R_IA64_PCREL21B
; break;
460 case BFD_RELOC_IA64_PCREL21BI
: rtype
= R_IA64_PCREL21BI
; break;
461 case BFD_RELOC_IA64_PCREL21M
: rtype
= R_IA64_PCREL21M
; break;
462 case BFD_RELOC_IA64_PCREL21F
: rtype
= R_IA64_PCREL21F
; break;
463 case BFD_RELOC_IA64_PCREL22
: rtype
= R_IA64_PCREL22
; break;
464 case BFD_RELOC_IA64_PCREL60B
: rtype
= R_IA64_PCREL60B
; break;
465 case BFD_RELOC_IA64_PCREL64I
: rtype
= R_IA64_PCREL64I
; break;
466 case BFD_RELOC_IA64_PCREL32MSB
: rtype
= R_IA64_PCREL32MSB
; break;
467 case BFD_RELOC_IA64_PCREL32LSB
: rtype
= R_IA64_PCREL32LSB
; break;
468 case BFD_RELOC_IA64_PCREL64MSB
: rtype
= R_IA64_PCREL64MSB
; break;
469 case BFD_RELOC_IA64_PCREL64LSB
: rtype
= R_IA64_PCREL64LSB
; break;
471 case BFD_RELOC_IA64_LTOFF_FPTR22
: rtype
= R_IA64_LTOFF_FPTR22
; break;
472 case BFD_RELOC_IA64_LTOFF_FPTR64I
: rtype
= R_IA64_LTOFF_FPTR64I
; break;
473 case BFD_RELOC_IA64_LTOFF_FPTR64MSB
: rtype
= R_IA64_LTOFF_FPTR64MSB
; break;
474 case BFD_RELOC_IA64_LTOFF_FPTR64LSB
: rtype
= R_IA64_LTOFF_FPTR64LSB
; break;
476 case BFD_RELOC_IA64_SEGREL32MSB
: rtype
= R_IA64_SEGREL32MSB
; break;
477 case BFD_RELOC_IA64_SEGREL32LSB
: rtype
= R_IA64_SEGREL32LSB
; break;
478 case BFD_RELOC_IA64_SEGREL64MSB
: rtype
= R_IA64_SEGREL64MSB
; break;
479 case BFD_RELOC_IA64_SEGREL64LSB
: rtype
= R_IA64_SEGREL64LSB
; break;
481 case BFD_RELOC_IA64_SECREL32MSB
: rtype
= R_IA64_SECREL32MSB
; break;
482 case BFD_RELOC_IA64_SECREL32LSB
: rtype
= R_IA64_SECREL32LSB
; break;
483 case BFD_RELOC_IA64_SECREL64MSB
: rtype
= R_IA64_SECREL64MSB
; break;
484 case BFD_RELOC_IA64_SECREL64LSB
: rtype
= R_IA64_SECREL64LSB
; break;
486 case BFD_RELOC_IA64_REL32MSB
: rtype
= R_IA64_REL32MSB
; break;
487 case BFD_RELOC_IA64_REL32LSB
: rtype
= R_IA64_REL32LSB
; break;
488 case BFD_RELOC_IA64_REL64MSB
: rtype
= R_IA64_REL64MSB
; break;
489 case BFD_RELOC_IA64_REL64LSB
: rtype
= R_IA64_REL64LSB
; break;
491 case BFD_RELOC_IA64_LTV32MSB
: rtype
= R_IA64_LTV32MSB
; break;
492 case BFD_RELOC_IA64_LTV32LSB
: rtype
= R_IA64_LTV32LSB
; break;
493 case BFD_RELOC_IA64_LTV64MSB
: rtype
= R_IA64_LTV64MSB
; break;
494 case BFD_RELOC_IA64_LTV64LSB
: rtype
= R_IA64_LTV64LSB
; break;
496 case BFD_RELOC_IA64_IPLTMSB
: rtype
= R_IA64_IPLTMSB
; break;
497 case BFD_RELOC_IA64_IPLTLSB
: rtype
= R_IA64_IPLTLSB
; break;
498 case BFD_RELOC_IA64_COPY
: rtype
= R_IA64_COPY
; break;
499 case BFD_RELOC_IA64_LTOFF22X
: rtype
= R_IA64_LTOFF22X
; break;
500 case BFD_RELOC_IA64_LDXMOV
: rtype
= R_IA64_LDXMOV
; break;
502 case BFD_RELOC_IA64_TPREL22
: rtype
= R_IA64_TPREL22
; break;
503 case BFD_RELOC_IA64_TPREL64MSB
: rtype
= R_IA64_TPREL64MSB
; break;
504 case BFD_RELOC_IA64_TPREL64LSB
: rtype
= R_IA64_TPREL64LSB
; break;
505 case BFD_RELOC_IA64_LTOFF_TP22
: rtype
= R_IA64_LTOFF_TP22
; break;
509 return lookup_howto (rtype
);
512 /* Given a ELF reloc, return the matching HOWTO structure. */
515 elfNN_ia64_info_to_howto (abfd
, bfd_reloc
, elf_reloc
)
516 bfd
*abfd ATTRIBUTE_UNUSED
;
518 ElfNN_Internal_Rela
*elf_reloc
;
520 bfd_reloc
->howto
= lookup_howto (ELFNN_R_TYPE (elf_reloc
->r_info
));
523 #define PLT_HEADER_SIZE (3 * 16)
524 #define PLT_MIN_ENTRY_SIZE (1 * 16)
525 #define PLT_FULL_ENTRY_SIZE (2 * 16)
526 #define PLT_RESERVED_WORDS 3
528 static const bfd_byte plt_header
[PLT_HEADER_SIZE
] =
530 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
531 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
532 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
533 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
534 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
535 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
536 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
537 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
538 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
541 static const bfd_byte plt_min_entry
[PLT_MIN_ENTRY_SIZE
] =
543 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
544 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
545 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
548 static const bfd_byte plt_full_entry
[PLT_FULL_ENTRY_SIZE
] =
550 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
551 0x00, 0x41, 0x3c, 0x30, 0x28, 0xc0, /* ld8 r16=[r15],8 */
552 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
553 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
554 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
555 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
558 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
560 /* Select out of range branch fixup type. Note that Itanium does
561 not support brl, and so it gets emulated by the kernel. */
564 static const bfd_byte oor_brl
[16] =
566 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
567 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
568 0x00, 0x00, 0x00, 0xc0
571 static const bfd_byte oor_ip
[48] =
573 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
574 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
575 0x01, 0x00, 0x00, 0x60,
576 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
577 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
578 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
579 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
580 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
581 0x60, 0x00, 0x80, 0x00 /* br b6;; */
584 /* These functions do relaxation for IA-64 ELF.
586 This is primarily to support branches to targets out of range;
587 relaxation of R_IA64_LTOFF22X and R_IA64_LDXMOV not yet supported. */
590 elfNN_ia64_relax_section (abfd
, sec
, link_info
, again
)
593 struct bfd_link_info
*link_info
;
598 struct one_fixup
*next
;
604 Elf_Internal_Shdr
*symtab_hdr
;
605 Elf_Internal_Rela
*internal_relocs
;
606 Elf_Internal_Rela
*free_relocs
= NULL
;
607 Elf_Internal_Rela
*irel
, *irelend
;
609 bfd_byte
*free_contents
= NULL
;
610 ElfNN_External_Sym
*extsyms
;
611 ElfNN_External_Sym
*free_extsyms
= NULL
;
612 struct elfNN_ia64_link_hash_table
*ia64_info
;
613 struct one_fixup
*fixups
= NULL
;
614 boolean changed_contents
= false;
615 boolean changed_relocs
= false;
617 /* Assume we're not going to change any sizes, and we'll only need
621 /* Nothing to do if there are no relocations. */
622 if ((sec
->flags
& SEC_RELOC
) == 0
623 || sec
->reloc_count
== 0)
626 /* If this is the first time we have been called for this section,
627 initialize the cooked size. */
628 if (sec
->_cooked_size
== 0)
629 sec
->_cooked_size
= sec
->_raw_size
;
631 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
633 /* Load the relocations for this section. */
634 internal_relocs
= (_bfd_elfNN_link_read_relocs
635 (abfd
, sec
, (PTR
) NULL
, (Elf_Internal_Rela
*) NULL
,
636 link_info
->keep_memory
));
637 if (internal_relocs
== NULL
)
640 if (! link_info
->keep_memory
)
641 free_relocs
= internal_relocs
;
643 ia64_info
= elfNN_ia64_hash_table (link_info
);
644 irelend
= internal_relocs
+ sec
->reloc_count
;
646 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
647 if (ELFNN_R_TYPE (irel
->r_info
) == (int) R_IA64_PCREL21B
)
650 /* No branch-type relocations. */
653 if (free_relocs
!= NULL
)
658 /* Get the section contents. */
659 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
660 contents
= elf_section_data (sec
)->this_hdr
.contents
;
663 contents
= (bfd_byte
*) bfd_malloc (sec
->_raw_size
);
664 if (contents
== NULL
)
666 free_contents
= contents
;
668 if (! bfd_get_section_contents (abfd
, sec
, contents
,
669 (file_ptr
) 0, sec
->_raw_size
))
673 /* Read this BFD's symbols. */
674 if (symtab_hdr
->contents
!= NULL
)
675 extsyms
= (ElfNN_External_Sym
*) symtab_hdr
->contents
;
678 extsyms
= (ElfNN_External_Sym
*) bfd_malloc (symtab_hdr
->sh_size
);
681 free_extsyms
= extsyms
;
682 if (bfd_seek (abfd
, symtab_hdr
->sh_offset
, SEEK_SET
) != 0
683 || (bfd_read (extsyms
, 1, symtab_hdr
->sh_size
, abfd
)
684 != symtab_hdr
->sh_size
))
688 for (; irel
< irelend
; irel
++)
690 bfd_vma symaddr
, reladdr
, trampoff
, toff
, roff
;
691 Elf_Internal_Sym isym
;
695 if (ELFNN_R_TYPE (irel
->r_info
) != (int) R_IA64_PCREL21B
)
698 /* Get the value of the symbol referred to by the reloc. */
699 if (ELFNN_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
701 /* A local symbol. */
702 bfd_elfNN_swap_symbol_in (abfd
,
703 extsyms
+ ELFNN_R_SYM (irel
->r_info
),
705 if (isym
.st_shndx
== SHN_UNDEF
)
706 continue; /* We can't do anthing with undefined symbols. */
707 else if (isym
.st_shndx
== SHN_ABS
)
708 tsec
= bfd_abs_section_ptr
;
709 else if (isym
.st_shndx
== SHN_COMMON
)
710 tsec
= bfd_com_section_ptr
;
711 else if (isym
.st_shndx
> 0 && isym
.st_shndx
< SHN_LORESERVE
)
712 tsec
= bfd_section_from_elf_index (abfd
, isym
.st_shndx
);
714 continue; /* who knows. */
716 toff
= isym
.st_value
;
721 struct elf_link_hash_entry
*h
;
722 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
724 indx
= ELFNN_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
725 h
= elf_sym_hashes (abfd
)[indx
];
726 BFD_ASSERT (h
!= NULL
);
728 while (h
->root
.type
== bfd_link_hash_indirect
729 || h
->root
.type
== bfd_link_hash_warning
)
730 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
732 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, irel
, false);
734 /* For branches to dynamic symbols, we're interested instead
735 in a branch to the PLT entry. */
736 if (dyn_i
&& dyn_i
->want_plt2
)
738 tsec
= ia64_info
->plt_sec
;
739 toff
= dyn_i
->plt2_offset
;
743 /* We can't do anthing with undefined symbols. */
744 if (h
->root
.type
== bfd_link_hash_undefined
745 || h
->root
.type
== bfd_link_hash_undefweak
)
748 tsec
= h
->root
.u
.def
.section
;
749 toff
= h
->root
.u
.def
.value
;
753 symaddr
= (tsec
->output_section
->vma
754 + tsec
->output_offset
758 roff
= irel
->r_offset
;
759 reladdr
= (sec
->output_section
->vma
763 /* If the branch is in range, no need to do anything. */
764 if ((bfd_signed_vma
) (symaddr
- reladdr
) >= -0x1000000
765 && (bfd_signed_vma
) (symaddr
- reladdr
) <= 0x0FFFFF0)
768 /* If the branch and target are in the same section, you've
769 got one honking big section and we can't help you. You'll
770 get an error message later. */
774 /* Look for an existing fixup to this address. */
775 for (f
= fixups
; f
; f
= f
->next
)
776 if (f
->tsec
== tsec
&& f
->toff
== toff
)
781 /* Two alternatives: If it's a branch to a PLT entry, we can
782 make a copy of the FULL_PLT entry. Otherwise, we'll have
783 to use a `brl' insn to get where we're going. */
787 if (tsec
== ia64_info
->plt_sec
)
788 size
= sizeof (plt_full_entry
);
792 size
= sizeof (oor_brl
);
794 size
= sizeof (oor_ip
);
798 /* Resize the current section to make room for the new branch. */
799 trampoff
= (sec
->_cooked_size
+ 15) & -16;
800 contents
= (bfd_byte
*) bfd_realloc (contents
, trampoff
+ size
);
801 if (contents
== NULL
)
803 sec
->_cooked_size
= trampoff
+ size
;
805 if (tsec
== ia64_info
->plt_sec
)
807 memcpy (contents
+ trampoff
, plt_full_entry
, size
);
809 /* Hijack the old relocation for use as the PLTOFF reloc. */
810 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
812 irel
->r_offset
= trampoff
;
817 memcpy (contents
+ trampoff
, oor_brl
, size
);
818 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
820 irel
->r_offset
= trampoff
+ 2;
822 memcpy (contents
+ trampoff
, oor_ip
, size
);
823 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
825 irel
->r_addend
-= 16;
826 irel
->r_offset
= trampoff
+ 2;
830 /* Record the fixup so we don't do it again this section. */
831 f
= (struct one_fixup
*) bfd_malloc (sizeof (*f
));
835 f
->trampoff
= trampoff
;
840 /* Nop out the reloc, since we're finalizing things here. */
841 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
844 /* Fix up the existing branch to hit the trampoline. Hope like
845 hell this doesn't overflow too. */
846 if (elfNN_ia64_install_value (abfd
, contents
+ roff
,
847 f
->trampoff
- (roff
& -4),
848 R_IA64_PCREL21B
) != bfd_reloc_ok
)
851 changed_contents
= true;
852 changed_relocs
= true;
855 /* Clean up and go home. */
858 struct one_fixup
*f
= fixups
;
859 fixups
= fixups
->next
;
864 elf_section_data (sec
)->relocs
= internal_relocs
;
865 else if (free_relocs
!= NULL
)
868 if (changed_contents
)
869 elf_section_data (sec
)->this_hdr
.contents
= contents
;
870 else if (free_contents
!= NULL
)
872 if (! link_info
->keep_memory
)
873 free (free_contents
);
876 /* Cache the section contents for elf_link_input_bfd. */
877 elf_section_data (sec
)->this_hdr
.contents
= contents
;
881 if (free_extsyms
!= NULL
)
883 if (! link_info
->keep_memory
)
887 /* Cache the symbols for elf_link_input_bfd. */
888 symtab_hdr
->contents
= extsyms
;
892 *again
= changed_contents
|| changed_relocs
;
896 if (free_relocs
!= NULL
)
898 if (free_contents
!= NULL
)
899 free (free_contents
);
900 if (free_extsyms
!= NULL
)
905 /* Handle an IA-64 specific section when reading an object file. This
906 is called when elfcode.h finds a section with an unknown type. */
909 elfNN_ia64_section_from_shdr (abfd
, hdr
, name
)
911 ElfNN_Internal_Shdr
*hdr
;
916 /* There ought to be a place to keep ELF backend specific flags, but
917 at the moment there isn't one. We just keep track of the
918 sections by their name, instead. Fortunately, the ABI gives
919 suggested names for all the MIPS specific sections, so we will
920 probably get away with this. */
921 switch (hdr
->sh_type
)
923 case SHT_IA_64_UNWIND
:
924 if (strcmp (name
, ELF_STRING_ia64_unwind
) != 0)
929 if (strcmp (name
, ELF_STRING_ia64_archext
) != 0)
937 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
))
939 newsect
= hdr
->bfd_section
;
944 /* Convert IA-64 specific section flags to bfd internal section flags. */
946 /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
950 elfNN_ia64_section_flags (flags
, hdr
)
952 ElfNN_Internal_Shdr
*hdr
;
954 if (hdr
->sh_flags
& SHF_IA_64_SHORT
)
955 *flags
|= SEC_SMALL_DATA
;
960 /* Set the correct type for an IA-64 ELF section. We do this by the
961 section name, which is a hack, but ought to work. */
964 elfNN_ia64_fake_sections (abfd
, hdr
, sec
)
965 bfd
*abfd ATTRIBUTE_UNUSED
;
966 ElfNN_Internal_Shdr
*hdr
;
969 register const char *name
;
971 name
= bfd_get_section_name (abfd
, sec
);
973 if (strcmp (name
, ELF_STRING_ia64_unwind
) == 0)
974 hdr
->sh_type
= SHT_IA_64_UNWIND
;
975 else if (strcmp (name
, ELF_STRING_ia64_archext
) == 0)
976 hdr
->sh_type
= SHT_IA_64_EXT
;
977 else if (strcmp (name
, ".reloc") == 0)
979 * This is an ugly, but unfortunately necessary hack that is
980 * needed when producing EFI binaries on IA-64. It tells
981 * elf.c:elf_fake_sections() not to consider ".reloc" as a section
982 * containing ELF relocation info. We need this hack in order to
983 * be able to generate ELF binaries that can be translated into
984 * EFI applications (which are essentially COFF objects). Those
985 * files contain a COFF ".reloc" section inside an ELFNN object,
986 * which would normally cause BFD to segfault because it would
987 * attempt to interpret this section as containing relocation
988 * entries for section "oc". With this hack enabled, ".reloc"
989 * will be treated as a normal data section, which will avoid the
990 * segfault. However, you won't be able to create an ELFNN binary
991 * with a section named "oc" that needs relocations, but that's
992 * the kind of ugly side-effects you get when detecting section
993 * types based on their names... In practice, this limitation is
996 hdr
->sh_type
= SHT_PROGBITS
;
998 if (sec
->flags
& SEC_SMALL_DATA
)
999 hdr
->sh_flags
|= SHF_IA_64_SHORT
;
1004 /* Hook called by the linker routine which adds symbols from an object
1005 file. We use it to put .comm items in .sbss, and not .bss. */
1008 elfNN_ia64_add_symbol_hook (abfd
, info
, sym
, namep
, flagsp
, secp
, valp
)
1010 struct bfd_link_info
*info
;
1011 const Elf_Internal_Sym
*sym
;
1012 const char **namep ATTRIBUTE_UNUSED
;
1013 flagword
*flagsp ATTRIBUTE_UNUSED
;
1017 if (sym
->st_shndx
== SHN_COMMON
1018 && !info
->relocateable
1019 && sym
->st_size
<= (unsigned) bfd_get_gp_size (abfd
))
1021 /* Common symbols less than or equal to -G nn bytes are
1022 automatically put into .sbss. */
1024 asection
*scomm
= bfd_get_section_by_name (abfd
, ".scommon");
1028 scomm
= bfd_make_section (abfd
, ".scommon");
1030 || !bfd_set_section_flags (abfd
, scomm
, (SEC_ALLOC
1032 | SEC_LINKER_CREATED
)))
1037 *valp
= sym
->st_size
;
1043 /* Return the number of additional phdrs we will need. */
1046 elfNN_ia64_additional_program_headers (abfd
)
1052 /* See if we need a PT_IA_64_ARCHEXT segment. */
1053 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1054 if (s
&& (s
->flags
& SEC_LOAD
))
1057 /* See if we need a PT_IA_64_UNWIND segment. */
1058 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_unwind
);
1059 if (s
&& (s
->flags
& SEC_LOAD
))
1066 elfNN_ia64_modify_segment_map (abfd
)
1069 struct elf_segment_map
*m
, **pm
;
1072 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1073 all PT_LOAD segments. */
1074 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1075 if (s
&& (s
->flags
& SEC_LOAD
))
1077 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1078 if (m
->p_type
== PT_IA_64_ARCHEXT
)
1082 m
= (struct elf_segment_map
*) bfd_zalloc (abfd
, sizeof *m
);
1086 m
->p_type
= PT_IA_64_ARCHEXT
;
1090 /* We want to put it after the PHDR and INTERP segments. */
1091 pm
= &elf_tdata (abfd
)->segment_map
;
1093 && ((*pm
)->p_type
== PT_PHDR
1094 || (*pm
)->p_type
== PT_INTERP
))
1102 /* Install the PT_IA_64_UNWIND segment, if needed. */
1103 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_unwind
);
1104 if (s
&& (s
->flags
& SEC_LOAD
))
1106 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1107 if (m
->p_type
== PT_IA_64_UNWIND
)
1111 m
= (struct elf_segment_map
*) bfd_zalloc (abfd
, sizeof *m
);
1115 m
->p_type
= PT_IA_64_UNWIND
;
1120 /* We want to put it last. */
1121 pm
= &elf_tdata (abfd
)->segment_map
;
1128 /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1129 the input sections for each output section in the segment and testing
1130 for SHF_IA_64_NORECOV on each. */
1131 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1132 if (m
->p_type
== PT_LOAD
)
1135 for (i
= m
->count
- 1; i
>= 0; --i
)
1137 struct bfd_link_order
*order
= m
->sections
[i
]->link_order_head
;
1140 if (order
->type
== bfd_indirect_link_order
)
1142 asection
*is
= order
->u
.indirect
.section
;
1143 bfd_vma flags
= elf_section_data(is
)->this_hdr
.sh_flags
;
1144 if (flags
& SHF_IA_64_NORECOV
)
1146 m
->p_flags
|= PF_IA_64_NORECOV
;
1150 order
= order
->next
;
1160 /* According to the Tahoe assembler spec, all labels starting with a
1164 elfNN_ia64_is_local_label_name (abfd
, name
)
1165 bfd
*abfd ATTRIBUTE_UNUSED
;
1168 return name
[0] == '.';
1171 /* Should we do dynamic things to this symbol? */
1174 elfNN_ia64_dynamic_symbol_p (h
, info
)
1175 struct elf_link_hash_entry
*h
;
1176 struct bfd_link_info
*info
;
1181 while (h
->root
.type
== bfd_link_hash_indirect
1182 || h
->root
.type
== bfd_link_hash_warning
)
1183 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1185 if (h
->dynindx
== -1)
1188 if (h
->root
.type
== bfd_link_hash_undefweak
1189 || h
->root
.type
== bfd_link_hash_defweak
)
1192 if ((info
->shared
&& !info
->symbolic
)
1193 || ((h
->elf_link_hash_flags
1194 & (ELF_LINK_HASH_DEF_DYNAMIC
| ELF_LINK_HASH_REF_REGULAR
))
1195 == (ELF_LINK_HASH_DEF_DYNAMIC
| ELF_LINK_HASH_REF_REGULAR
)))
1202 elfNN_ia64_local_hash_table_init (ht
, abfd
, new)
1203 struct elfNN_ia64_local_hash_table
*ht
;
1204 bfd
*abfd ATTRIBUTE_UNUSED
;
1205 new_hash_entry_func
new;
1207 memset (ht
, 0, sizeof(*ht
));
1208 return bfd_hash_table_init (&ht
->root
, new);
1211 static struct bfd_hash_entry
*
1212 elfNN_ia64_new_loc_hash_entry (entry
, table
, string
)
1213 struct bfd_hash_entry
*entry
;
1214 struct bfd_hash_table
*table
;
1217 struct elfNN_ia64_local_hash_entry
*ret
;
1218 ret
= (struct elfNN_ia64_local_hash_entry
*) entry
;
1220 /* Allocate the structure if it has not already been allocated by a
1223 ret
= bfd_hash_allocate (table
, sizeof (*ret
));
1228 /* Initialize our local data. All zeros, and definitely easier
1229 than setting a handful of bit fields. */
1230 memset (ret
, 0, sizeof(*ret
));
1232 /* Call the allocation method of the superclass. */
1233 ret
= ((struct elfNN_ia64_local_hash_entry
*)
1234 bfd_hash_newfunc ((struct bfd_hash_entry
*) ret
, table
, string
));
1236 return (struct bfd_hash_entry
*) ret
;
1239 static struct bfd_hash_entry
*
1240 elfNN_ia64_new_elf_hash_entry (entry
, table
, string
)
1241 struct bfd_hash_entry
*entry
;
1242 struct bfd_hash_table
*table
;
1245 struct elfNN_ia64_link_hash_entry
*ret
;
1246 ret
= (struct elfNN_ia64_link_hash_entry
*) entry
;
1248 /* Allocate the structure if it has not already been allocated by a
1251 ret
= bfd_hash_allocate (table
, sizeof (*ret
));
1256 /* Initialize our local data. All zeros, and definitely easier
1257 than setting a handful of bit fields. */
1258 memset (ret
, 0, sizeof(*ret
));
1260 /* Call the allocation method of the superclass. */
1261 ret
= ((struct elfNN_ia64_link_hash_entry
*)
1262 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
1265 return (struct bfd_hash_entry
*) ret
;
1269 elfNN_ia64_hash_copy_indirect (xdir
, xind
)
1270 struct elf_link_hash_entry
*xdir
, *xind
;
1272 struct elfNN_ia64_link_hash_entry
*dir
, *ind
;
1274 dir
= (struct elfNN_ia64_link_hash_entry
*)xdir
;
1275 ind
= (struct elfNN_ia64_link_hash_entry
*)xind
;
1277 /* Copy down any references that we may have already seen to the
1278 symbol which just became indirect. */
1280 dir
->root
.elf_link_hash_flags
|=
1281 (ind
->root
.elf_link_hash_flags
1282 & (ELF_LINK_HASH_REF_DYNAMIC
1283 | ELF_LINK_HASH_REF_REGULAR
1284 | ELF_LINK_HASH_REF_REGULAR_NONWEAK
));
1286 /* Copy over the got and plt data. This would have been done
1289 if (dir
->info
== NULL
)
1291 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1293 dir
->info
= dyn_i
= ind
->info
;
1296 /* Fix up the dyn_sym_info pointers to the global symbol. */
1297 for (; dyn_i
; dyn_i
= dyn_i
->next
)
1298 dyn_i
->h
= &dir
->root
;
1300 BFD_ASSERT (ind
->info
== NULL
);
1302 /* Copy over the dynindx. */
1304 if (dir
->root
.dynindx
== -1)
1306 dir
->root
.dynindx
= ind
->root
.dynindx
;
1307 dir
->root
.dynstr_index
= ind
->root
.dynstr_index
;
1308 ind
->root
.dynindx
= -1;
1309 ind
->root
.dynstr_index
= 0;
1311 BFD_ASSERT (ind
->root
.dynindx
== -1);
1315 elfNN_ia64_hash_hide_symbol (info
, xh
)
1316 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
1317 struct elf_link_hash_entry
*xh
;
1319 struct elfNN_ia64_link_hash_entry
*h
;
1320 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1322 h
= (struct elfNN_ia64_link_hash_entry
*)xh
;
1324 h
->root
.elf_link_hash_flags
&= ~ELF_LINK_HASH_NEEDS_PLT
;
1325 h
->root
.dynindx
= -1;
1327 for (dyn_i
= h
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1328 dyn_i
->want_plt2
= 0;
1331 /* Create the derived linker hash table. The IA-64 ELF port uses this
1332 derived hash table to keep information specific to the IA-64 ElF
1333 linker (without using static variables). */
1335 static struct bfd_link_hash_table
*
1336 elfNN_ia64_hash_table_create (abfd
)
1339 struct elfNN_ia64_link_hash_table
*ret
;
1341 ret
= bfd_alloc (abfd
, sizeof (*ret
));
1344 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
1345 elfNN_ia64_new_elf_hash_entry
))
1347 bfd_release (abfd
, ret
);
1351 if (!elfNN_ia64_local_hash_table_init (&ret
->loc_hash_table
, abfd
,
1352 elfNN_ia64_new_loc_hash_entry
))
1354 return &ret
->root
.root
;
1357 /* Look up an entry in a Alpha ELF linker hash table. */
1359 static INLINE
struct elfNN_ia64_local_hash_entry
*
1360 elfNN_ia64_local_hash_lookup(table
, string
, create
, copy
)
1361 struct elfNN_ia64_local_hash_table
*table
;
1363 boolean create
, copy
;
1365 return ((struct elfNN_ia64_local_hash_entry
*)
1366 bfd_hash_lookup (&table
->root
, string
, create
, copy
));
1369 /* Traverse both local and global hash tables. */
1371 struct elfNN_ia64_dyn_sym_traverse_data
1373 boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1378 elfNN_ia64_global_dyn_sym_thunk (xentry
, xdata
)
1379 struct bfd_hash_entry
*xentry
;
1382 struct elfNN_ia64_link_hash_entry
*entry
1383 = (struct elfNN_ia64_link_hash_entry
*) xentry
;
1384 struct elfNN_ia64_dyn_sym_traverse_data
*data
1385 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1386 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1388 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1389 if (! (*data
->func
) (dyn_i
, data
->data
))
1395 elfNN_ia64_local_dyn_sym_thunk (xentry
, xdata
)
1396 struct bfd_hash_entry
*xentry
;
1399 struct elfNN_ia64_local_hash_entry
*entry
1400 = (struct elfNN_ia64_local_hash_entry
*) xentry
;
1401 struct elfNN_ia64_dyn_sym_traverse_data
*data
1402 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1403 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1405 for (dyn_i
= entry
->info
; dyn_i
; dyn_i
= dyn_i
->next
)
1406 if (! (*data
->func
) (dyn_i
, data
->data
))
1412 elfNN_ia64_dyn_sym_traverse (ia64_info
, func
, data
)
1413 struct elfNN_ia64_link_hash_table
*ia64_info
;
1414 boolean (*func
) PARAMS ((struct elfNN_ia64_dyn_sym_info
*, PTR
));
1417 struct elfNN_ia64_dyn_sym_traverse_data xdata
;
1422 elf_link_hash_traverse (&ia64_info
->root
,
1423 elfNN_ia64_global_dyn_sym_thunk
, &xdata
);
1424 bfd_hash_traverse (&ia64_info
->loc_hash_table
.root
,
1425 elfNN_ia64_local_dyn_sym_thunk
, &xdata
);
1429 elfNN_ia64_create_dynamic_sections (abfd
, info
)
1431 struct bfd_link_info
*info
;
1433 struct elfNN_ia64_link_hash_table
*ia64_info
;
1436 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
1439 ia64_info
= elfNN_ia64_hash_table (info
);
1441 ia64_info
->plt_sec
= bfd_get_section_by_name (abfd
, ".plt");
1442 ia64_info
->got_sec
= bfd_get_section_by_name (abfd
, ".got");
1445 flagword flags
= bfd_get_section_flags (abfd
, ia64_info
->got_sec
);
1446 bfd_set_section_flags (abfd
, ia64_info
->got_sec
, SEC_SMALL_DATA
| flags
);
1449 if (!get_pltoff (abfd
, info
, ia64_info
))
1452 s
= bfd_make_section(abfd
, ".rela.IA_64.pltoff");
1454 || !bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1457 | SEC_LINKER_CREATED
1459 || !bfd_set_section_alignment (abfd
, s
, 3))
1461 ia64_info
->rel_pltoff_sec
= s
;
1463 s
= bfd_make_section(abfd
, ".rela.got");
1465 || !bfd_set_section_flags (abfd
, s
, (SEC_ALLOC
| SEC_LOAD
1468 | SEC_LINKER_CREATED
1470 || !bfd_set_section_alignment (abfd
, s
, 3))
1472 ia64_info
->rel_got_sec
= s
;
1477 /* Find and/or create a descriptor for dynamic symbol info. This will
1478 vary based on global or local symbol, and the addend to the reloc. */
1480 static struct elfNN_ia64_dyn_sym_info
*
1481 get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, create
)
1482 struct elfNN_ia64_link_hash_table
*ia64_info
;
1483 struct elf_link_hash_entry
*h
;
1485 const Elf_Internal_Rela
*rel
;
1488 struct elfNN_ia64_dyn_sym_info
**pp
;
1489 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1490 bfd_vma addend
= rel
? rel
->r_addend
: 0;
1493 pp
= &((struct elfNN_ia64_link_hash_entry
*)h
)->info
;
1496 struct elfNN_ia64_local_hash_entry
*loc_h
;
1500 /* Construct a string for use in the elfNN_ia64_local_hash_table.
1501 The name describes what was once anonymous memory. */
1503 len
= sizeof(void*)*2 + 1 + sizeof(bfd_vma
)*4 + 1 + 1;
1504 len
+= 10; /* %p slop */
1506 addr_name
= alloca (len
);
1507 sprintf (addr_name
, "%p:%lx", (void *) abfd
, ELFNN_R_SYM (rel
->r_info
));
1509 /* Collect the canonical entry data for this address. */
1510 loc_h
= elfNN_ia64_local_hash_lookup (&ia64_info
->loc_hash_table
,
1511 addr_name
, create
, create
);
1517 for (dyn_i
= *pp
; dyn_i
&& dyn_i
->addend
!= addend
; dyn_i
= *pp
)
1520 if (dyn_i
== NULL
&& create
)
1522 dyn_i
= (struct elfNN_ia64_dyn_sym_info
*)
1523 bfd_zalloc (abfd
, sizeof *dyn_i
);
1525 dyn_i
->addend
= addend
;
1532 get_got (abfd
, info
, ia64_info
)
1534 struct bfd_link_info
*info
;
1535 struct elfNN_ia64_link_hash_table
*ia64_info
;
1540 got
= ia64_info
->got_sec
;
1545 dynobj
= ia64_info
->root
.dynobj
;
1547 ia64_info
->root
.dynobj
= dynobj
= abfd
;
1548 if (!_bfd_elf_create_got_section (dynobj
, info
))
1551 got
= bfd_get_section_by_name (dynobj
, ".got");
1553 ia64_info
->got_sec
= got
;
1555 flags
= bfd_get_section_flags (abfd
, got
);
1556 bfd_set_section_flags (abfd
, got
, SEC_SMALL_DATA
| flags
);
1562 /* Create function descriptor section (.opd). This section is called .opd
1563 because it contains "official prodecure descriptors". The "official"
1564 refers to the fact that these descriptors are used when taking the address
1565 of a procedure, thus ensuring a unique address for each procedure. */
1568 get_fptr (abfd
, info
, ia64_info
)
1570 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
1571 struct elfNN_ia64_link_hash_table
*ia64_info
;
1576 fptr
= ia64_info
->fptr_sec
;
1579 dynobj
= ia64_info
->root
.dynobj
;
1581 ia64_info
->root
.dynobj
= dynobj
= abfd
;
1583 fptr
= bfd_make_section (dynobj
, ".opd");
1585 || !bfd_set_section_flags (dynobj
, fptr
,
1591 | SEC_LINKER_CREATED
))
1592 || !bfd_set_section_alignment (abfd
, fptr
, 4))
1598 ia64_info
->fptr_sec
= fptr
;
1605 get_pltoff (abfd
, info
, ia64_info
)
1607 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
1608 struct elfNN_ia64_link_hash_table
*ia64_info
;
1613 pltoff
= ia64_info
->pltoff_sec
;
1616 dynobj
= ia64_info
->root
.dynobj
;
1618 ia64_info
->root
.dynobj
= dynobj
= abfd
;
1620 pltoff
= bfd_make_section (dynobj
, ELF_STRING_ia64_pltoff
);
1622 || !bfd_set_section_flags (dynobj
, pltoff
,
1628 | SEC_LINKER_CREATED
))
1629 || !bfd_set_section_alignment (abfd
, pltoff
, 4))
1635 ia64_info
->pltoff_sec
= pltoff
;
1642 get_reloc_section (abfd
, ia64_info
, sec
, create
)
1644 struct elfNN_ia64_link_hash_table
*ia64_info
;
1648 const char *srel_name
;
1652 srel_name
= (bfd_elf_string_from_elf_section
1653 (abfd
, elf_elfheader(abfd
)->e_shstrndx
,
1654 elf_section_data(sec
)->rel_hdr
.sh_name
));
1655 if (srel_name
== NULL
)
1658 BFD_ASSERT ((strncmp (srel_name
, ".rela", 5) == 0
1659 && strcmp (bfd_get_section_name (abfd
, sec
),
1661 || (strncmp (srel_name
, ".rel", 4) == 0
1662 && strcmp (bfd_get_section_name (abfd
, sec
),
1663 srel_name
+4) == 0));
1665 dynobj
= ia64_info
->root
.dynobj
;
1667 ia64_info
->root
.dynobj
= dynobj
= abfd
;
1669 srel
= bfd_get_section_by_name (dynobj
, srel_name
);
1670 if (srel
== NULL
&& create
)
1672 srel
= bfd_make_section (dynobj
, srel_name
);
1674 || !bfd_set_section_flags (dynobj
, srel
,
1679 | SEC_LINKER_CREATED
1681 || !bfd_set_section_alignment (dynobj
, srel
, 3))
1689 count_dyn_reloc (abfd
, dyn_i
, srel
, type
)
1691 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1695 struct elfNN_ia64_dyn_reloc_entry
*rent
;
1697 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
1698 if (rent
->srel
== srel
&& rent
->type
== type
)
1703 rent
= (struct elfNN_ia64_dyn_reloc_entry
*)
1704 bfd_alloc (abfd
, sizeof (*rent
));
1708 rent
->next
= dyn_i
->reloc_entries
;
1712 dyn_i
->reloc_entries
= rent
;
1720 elfNN_ia64_check_relocs (abfd
, info
, sec
, relocs
)
1722 struct bfd_link_info
*info
;
1724 const Elf_Internal_Rela
*relocs
;
1726 struct elfNN_ia64_link_hash_table
*ia64_info
;
1727 const Elf_Internal_Rela
*relend
;
1728 Elf_Internal_Shdr
*symtab_hdr
;
1729 const Elf_Internal_Rela
*rel
;
1730 asection
*got
, *fptr
, *srel
;
1732 if (info
->relocateable
)
1735 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
1736 ia64_info
= elfNN_ia64_hash_table (info
);
1738 got
= fptr
= srel
= NULL
;
1740 relend
= relocs
+ sec
->reloc_count
;
1741 for (rel
= relocs
; rel
< relend
; ++rel
)
1750 NEED_LTOFF_FPTR
= 64,
1753 struct elf_link_hash_entry
*h
= NULL
;
1754 unsigned long r_symndx
= ELFNN_R_SYM (rel
->r_info
);
1755 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1757 boolean maybe_dynamic
;
1758 int dynrel_type
= R_IA64_NONE
;
1760 if (r_symndx
>= symtab_hdr
->sh_info
)
1762 /* We're dealing with a global symbol -- find its hash entry
1763 and mark it as being referenced. */
1764 long indx
= r_symndx
- symtab_hdr
->sh_info
;
1765 h
= elf_sym_hashes (abfd
)[indx
];
1766 while (h
->root
.type
== bfd_link_hash_indirect
1767 || h
->root
.type
== bfd_link_hash_warning
)
1768 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
1770 h
->elf_link_hash_flags
|= ELF_LINK_HASH_REF_REGULAR
;
1773 /* We can only get preliminary data on whether a symbol is
1774 locally or externally defined, as not all of the input files
1775 have yet been processed. Do something with what we know, as
1776 this may help reduce memory usage and processing time later. */
1777 maybe_dynamic
= false;
1778 if (h
&& ((info
->shared
&& ! info
->symbolic
)
1779 || ! (h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
)
1780 || h
->root
.type
== bfd_link_hash_defweak
))
1781 maybe_dynamic
= true;
1784 switch (ELFNN_R_TYPE (rel
->r_info
))
1786 case R_IA64_TPREL22
:
1787 case R_IA64_TPREL64MSB
:
1788 case R_IA64_TPREL64LSB
:
1789 case R_IA64_LTOFF_TP22
:
1792 case R_IA64_LTOFF_FPTR22
:
1793 case R_IA64_LTOFF_FPTR64I
:
1794 case R_IA64_LTOFF_FPTR64MSB
:
1795 case R_IA64_LTOFF_FPTR64LSB
:
1796 need_entry
= NEED_FPTR
| NEED_GOT
| NEED_LTOFF_FPTR
;
1799 case R_IA64_FPTR64I
:
1800 case R_IA64_FPTR32MSB
:
1801 case R_IA64_FPTR32LSB
:
1802 case R_IA64_FPTR64MSB
:
1803 case R_IA64_FPTR64LSB
:
1804 if (info
->shared
|| h
)
1805 need_entry
= NEED_FPTR
| NEED_DYNREL
;
1807 need_entry
= NEED_FPTR
;
1808 dynrel_type
= R_IA64_FPTR64LSB
;
1811 case R_IA64_LTOFF22
:
1812 case R_IA64_LTOFF22X
:
1813 case R_IA64_LTOFF64I
:
1814 need_entry
= NEED_GOT
;
1817 case R_IA64_PLTOFF22
:
1818 case R_IA64_PLTOFF64I
:
1819 case R_IA64_PLTOFF64MSB
:
1820 case R_IA64_PLTOFF64LSB
:
1821 need_entry
= NEED_PLTOFF
;
1825 need_entry
|= NEED_MIN_PLT
;
1829 (*info
->callbacks
->warning
)
1830 (info
, _("@pltoff reloc against local symbol"), 0,
1835 case R_IA64_PCREL21B
:
1836 case R_IA64_PCREL60B
:
1837 /* Depending on where this symbol is defined, we may or may not
1838 need a full plt entry. Only skip if we know we'll not need
1839 the entry -- static or symbolic, and the symbol definition
1840 has already been seen. */
1841 if (maybe_dynamic
&& rel
->r_addend
== 0)
1842 need_entry
= NEED_FULL_PLT
;
1848 case R_IA64_DIR32MSB
:
1849 case R_IA64_DIR32LSB
:
1850 case R_IA64_DIR64MSB
:
1851 case R_IA64_DIR64LSB
:
1852 /* Shared objects will always need at least a REL relocation. */
1853 if (info
->shared
|| maybe_dynamic
)
1854 need_entry
= NEED_DYNREL
;
1855 dynrel_type
= R_IA64_DIR64LSB
;
1858 case R_IA64_IPLTMSB
:
1859 case R_IA64_IPLTLSB
:
1860 /* Shared objects will always need at least a REL relocation. */
1861 if (info
->shared
|| maybe_dynamic
)
1862 need_entry
= NEED_DYNREL
;
1863 dynrel_type
= R_IA64_IPLTLSB
;
1866 case R_IA64_PCREL22
:
1867 case R_IA64_PCREL64I
:
1868 case R_IA64_PCREL32MSB
:
1869 case R_IA64_PCREL32LSB
:
1870 case R_IA64_PCREL64MSB
:
1871 case R_IA64_PCREL64LSB
:
1873 need_entry
= NEED_DYNREL
;
1874 dynrel_type
= R_IA64_PCREL64LSB
;
1881 if ((need_entry
& NEED_FPTR
) != 0
1884 (*info
->callbacks
->warning
)
1885 (info
, _("non-zero addend in @fptr reloc"), 0,
1889 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, true);
1891 /* Record whether or not this is a local symbol. */
1894 /* Create what's needed. */
1895 if (need_entry
& NEED_GOT
)
1899 got
= get_got (abfd
, info
, ia64_info
);
1903 dyn_i
->want_got
= 1;
1905 if (need_entry
& NEED_FPTR
)
1909 fptr
= get_fptr (abfd
, info
, ia64_info
);
1914 /* FPTRs for shared libraries are allocated by the dynamic
1915 linker. Make sure this local symbol will appear in the
1916 dynamic symbol table. */
1917 if (!h
&& info
->shared
)
1919 if (! (_bfd_elfNN_link_record_local_dynamic_symbol
1920 (info
, abfd
, r_symndx
)))
1924 dyn_i
->want_fptr
= 1;
1926 if (need_entry
& NEED_LTOFF_FPTR
)
1927 dyn_i
->want_ltoff_fptr
= 1;
1928 if (need_entry
& (NEED_MIN_PLT
| NEED_FULL_PLT
))
1930 if (!ia64_info
->root
.dynobj
)
1931 ia64_info
->root
.dynobj
= abfd
;
1932 h
->elf_link_hash_flags
|= ELF_LINK_HASH_NEEDS_PLT
;
1933 dyn_i
->want_plt
= 1;
1935 if (need_entry
& NEED_FULL_PLT
)
1936 dyn_i
->want_plt2
= 1;
1937 if (need_entry
& NEED_PLTOFF
)
1938 dyn_i
->want_pltoff
= 1;
1939 if ((need_entry
& NEED_DYNREL
) && (sec
->flags
& SEC_ALLOC
))
1943 srel
= get_reloc_section (abfd
, ia64_info
, sec
, true);
1947 if (!count_dyn_reloc (abfd
, dyn_i
, srel
, dynrel_type
))
1955 struct elfNN_ia64_allocate_data
1957 struct bfd_link_info
*info
;
1961 /* For cleanliness, and potentially faster dynamic loading, allocate
1962 external GOT entries first. */
1965 allocate_global_data_got (dyn_i
, data
)
1966 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1969 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
1972 && ! dyn_i
->want_fptr
1973 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
))
1975 dyn_i
->got_offset
= x
->ofs
;
1981 /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
1984 allocate_global_fptr_got (dyn_i
, data
)
1985 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1988 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
1992 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
))
1994 dyn_i
->got_offset
= x
->ofs
;
2000 /* Lastly, allocate all the GOT entries for local data. */
2003 allocate_local_got (dyn_i
, data
)
2004 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2007 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2010 && ! elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
))
2012 dyn_i
->got_offset
= x
->ofs
;
2018 /* Search for the index of a global symbol in it's defining object file. */
2020 static unsigned long
2021 global_sym_index (h
)
2022 struct elf_link_hash_entry
*h
;
2024 struct elf_link_hash_entry
**p
;
2027 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
2028 || h
->root
.type
== bfd_link_hash_defweak
);
2030 obj
= h
->root
.u
.def
.section
->owner
;
2031 for (p
= elf_sym_hashes (obj
); *p
!= h
; ++p
)
2034 return p
- elf_sym_hashes (obj
) + elf_tdata (obj
)->symtab_hdr
.sh_info
;
2037 /* Allocate function descriptors. We can do these for every function
2038 in a main executable that is not exported. */
2041 allocate_fptr (dyn_i
, data
)
2042 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2045 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2047 if (dyn_i
->want_fptr
)
2049 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2052 while (h
->root
.type
== bfd_link_hash_indirect
2053 || h
->root
.type
== bfd_link_hash_warning
)
2054 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2056 if (x
->info
->shared
)
2058 if (h
&& h
->dynindx
== -1)
2060 BFD_ASSERT ((h
->root
.type
== bfd_link_hash_defined
)
2061 || (h
->root
.type
== bfd_link_hash_defweak
));
2063 if (!_bfd_elfNN_link_record_local_dynamic_symbol
2064 (x
->info
, h
->root
.u
.def
.section
->owner
,
2065 global_sym_index (h
)))
2069 dyn_i
->want_fptr
= 0;
2071 else if (h
== NULL
|| h
->dynindx
== -1)
2073 dyn_i
->fptr_offset
= x
->ofs
;
2077 dyn_i
->want_fptr
= 0;
2082 /* Allocate all the minimal PLT entries. */
2085 allocate_plt_entries (dyn_i
, data
)
2086 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2089 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2091 if (dyn_i
->want_plt
)
2093 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2096 while (h
->root
.type
== bfd_link_hash_indirect
2097 || h
->root
.type
== bfd_link_hash_warning
)
2098 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2100 /* ??? Versioned symbols seem to lose ELF_LINK_HASH_NEEDS_PLT. */
2101 if (elfNN_ia64_dynamic_symbol_p (h
, x
->info
))
2103 bfd_size_type offset
= x
->ofs
;
2105 offset
= PLT_HEADER_SIZE
;
2106 dyn_i
->plt_offset
= offset
;
2107 x
->ofs
= offset
+ PLT_MIN_ENTRY_SIZE
;
2109 dyn_i
->want_pltoff
= 1;
2113 dyn_i
->want_plt
= 0;
2114 dyn_i
->want_plt2
= 0;
2120 /* Allocate all the full PLT entries. */
2123 allocate_plt2_entries (dyn_i
, data
)
2124 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2127 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2129 if (dyn_i
->want_plt2
)
2131 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2132 bfd_size_type ofs
= x
->ofs
;
2134 dyn_i
->plt2_offset
= ofs
;
2135 x
->ofs
= ofs
+ PLT_FULL_ENTRY_SIZE
;
2137 while (h
->root
.type
== bfd_link_hash_indirect
2138 || h
->root
.type
== bfd_link_hash_warning
)
2139 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2140 dyn_i
->h
->plt
.offset
= ofs
;
2145 /* Allocate all the PLTOFF entries requested by relocations and
2146 plt entries. We can't share space with allocated FPTR entries,
2147 because the latter are not necessarily addressable by the GP.
2148 ??? Relaxation might be able to determine that they are. */
2151 allocate_pltoff_entries (dyn_i
, data
)
2152 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2155 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2157 if (dyn_i
->want_pltoff
)
2159 dyn_i
->pltoff_offset
= x
->ofs
;
2165 /* Allocate dynamic relocations for those symbols that turned out
2169 allocate_dynrel_entries (dyn_i
, data
)
2170 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2173 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2174 struct elfNN_ia64_link_hash_table
*ia64_info
;
2175 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2176 boolean dynamic_symbol
, shared
;
2178 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2179 dynamic_symbol
= elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
);
2180 shared
= x
->info
->shared
;
2182 /* Take care of the normal data relocations. */
2184 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2186 int count
= rent
->count
;
2190 case R_IA64_FPTR64LSB
:
2191 /* Allocate one iff !want_fptr, which by this point will
2192 be true only if we're actually allocating one statically
2193 in the main executable. */
2194 if (dyn_i
->want_fptr
)
2197 case R_IA64_PCREL64LSB
:
2198 if (!dynamic_symbol
)
2201 case R_IA64_DIR64LSB
:
2202 if (!dynamic_symbol
&& !shared
)
2205 case R_IA64_IPLTLSB
:
2206 if (!dynamic_symbol
&& !shared
)
2208 /* Use two REL relocations for IPLT relocations
2209 against local symbols. */
2210 if (!dynamic_symbol
)
2216 rent
->srel
->_raw_size
+= sizeof (ElfNN_External_Rela
) * count
;
2219 /* Take care of the GOT and PLT relocations. */
2221 if (((dynamic_symbol
|| shared
) && dyn_i
->want_got
)
2222 || (dyn_i
->want_ltoff_fptr
&& dyn_i
->h
&& dyn_i
->h
->dynindx
!= -1))
2223 ia64_info
->rel_got_sec
->_raw_size
+= sizeof (ElfNN_External_Rela
);
2225 if (dyn_i
->want_pltoff
)
2227 bfd_size_type t
= 0;
2229 /* Dynamic symbols get one IPLT relocation. Local symbols in
2230 shared libraries get two REL relocations. Local symbols in
2231 main applications get nothing. */
2233 t
= sizeof (ElfNN_External_Rela
);
2235 t
= 2 * sizeof (ElfNN_External_Rela
);
2237 ia64_info
->rel_pltoff_sec
->_raw_size
+= t
;
2244 elfNN_ia64_adjust_dynamic_symbol (info
, h
)
2245 struct bfd_link_info
*info ATTRIBUTE_UNUSED
;
2246 struct elf_link_hash_entry
*h
;
2248 /* ??? Undefined symbols with PLT entries should be re-defined
2249 to be the PLT entry. */
2251 /* If this is a weak symbol, and there is a real definition, the
2252 processor independent code will have arranged for us to see the
2253 real definition first, and we can just use the same value. */
2254 if (h
->weakdef
!= NULL
)
2256 BFD_ASSERT (h
->weakdef
->root
.type
== bfd_link_hash_defined
2257 || h
->weakdef
->root
.type
== bfd_link_hash_defweak
);
2258 h
->root
.u
.def
.section
= h
->weakdef
->root
.u
.def
.section
;
2259 h
->root
.u
.def
.value
= h
->weakdef
->root
.u
.def
.value
;
2263 /* If this is a reference to a symbol defined by a dynamic object which
2264 is not a function, we might allocate the symbol in our .dynbss section
2265 and allocate a COPY dynamic relocation.
2267 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
2274 elfNN_ia64_size_dynamic_sections (output_bfd
, info
)
2276 struct bfd_link_info
*info
;
2278 struct elfNN_ia64_allocate_data data
;
2279 struct elfNN_ia64_link_hash_table
*ia64_info
;
2282 boolean reltext
= false;
2283 boolean relplt
= false;
2285 dynobj
= elf_hash_table(info
)->dynobj
;
2286 ia64_info
= elfNN_ia64_hash_table (info
);
2287 BFD_ASSERT(dynobj
!= NULL
);
2290 /* Set the contents of the .interp section to the interpreter. */
2291 if (ia64_info
->root
.dynamic_sections_created
2294 sec
= bfd_get_section_by_name (dynobj
, ".interp");
2295 BFD_ASSERT (sec
!= NULL
);
2296 sec
->contents
= (bfd_byte
*) ELF_DYNAMIC_INTERPRETER
;
2297 sec
->_raw_size
= strlen (ELF_DYNAMIC_INTERPRETER
) + 1;
2300 /* Allocate the GOT entries. */
2302 if (ia64_info
->got_sec
)
2305 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
2306 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
2307 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
2308 ia64_info
->got_sec
->_raw_size
= data
.ofs
;
2311 /* Allocate the FPTR entries. */
2313 if (ia64_info
->fptr_sec
)
2316 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_fptr
, &data
);
2317 ia64_info
->fptr_sec
->_raw_size
= data
.ofs
;
2320 /* Now that we've seen all of the input files, we can decide which
2321 symbols need plt entries. Allocate the minimal PLT entries first.
2322 We do this even though dynamic_sections_created may be false, because
2323 this has the side-effect of clearing want_plt and want_plt2. */
2326 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt_entries
, &data
);
2328 ia64_info
->minplt_entries
= 0;
2331 ia64_info
->minplt_entries
2332 = (data
.ofs
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
2335 /* Align the pointer for the plt2 entries. */
2336 data
.ofs
= (data
.ofs
+ 31) & -32;
2338 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt2_entries
, &data
);
2341 BFD_ASSERT (ia64_info
->root
.dynamic_sections_created
);
2343 ia64_info
->plt_sec
->_raw_size
= data
.ofs
;
2345 /* If we've got a .plt, we need some extra memory for the dynamic
2346 linker. We stuff these in .got.plt. */
2347 sec
= bfd_get_section_by_name (dynobj
, ".got.plt");
2348 sec
->_raw_size
= 8 * PLT_RESERVED_WORDS
;
2351 /* Allocate the PLTOFF entries. */
2353 if (ia64_info
->pltoff_sec
)
2356 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_pltoff_entries
, &data
);
2357 ia64_info
->pltoff_sec
->_raw_size
= data
.ofs
;
2360 if (ia64_info
->root
.dynamic_sections_created
)
2362 /* Allocate space for the dynamic relocations that turned out to be
2365 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_dynrel_entries
, &data
);
2368 /* We have now determined the sizes of the various dynamic sections.
2369 Allocate memory for them. */
2370 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
2374 if (!(sec
->flags
& SEC_LINKER_CREATED
))
2377 /* If we don't need this section, strip it from the output file.
2378 There were several sections primarily related to dynamic
2379 linking that must be create before the linker maps input
2380 sections to output sections. The linker does that before
2381 bfd_elf_size_dynamic_sections is called, and it is that
2382 function which decides whether anything needs to go into
2385 strip
= (sec
->_raw_size
== 0);
2387 if (sec
== ia64_info
->got_sec
)
2389 else if (sec
== ia64_info
->rel_got_sec
)
2392 ia64_info
->rel_got_sec
= NULL
;
2394 /* We use the reloc_count field as a counter if we need to
2395 copy relocs into the output file. */
2396 sec
->reloc_count
= 0;
2398 else if (sec
== ia64_info
->fptr_sec
)
2401 ia64_info
->fptr_sec
= NULL
;
2403 else if (sec
== ia64_info
->plt_sec
)
2406 ia64_info
->plt_sec
= NULL
;
2408 else if (sec
== ia64_info
->pltoff_sec
)
2411 ia64_info
->pltoff_sec
= NULL
;
2413 else if (sec
== ia64_info
->rel_pltoff_sec
)
2416 ia64_info
->rel_pltoff_sec
= NULL
;
2420 /* We use the reloc_count field as a counter if we need to
2421 copy relocs into the output file. */
2422 sec
->reloc_count
= 0;
2429 /* It's OK to base decisions on the section name, because none
2430 of the dynobj section names depend upon the input files. */
2431 name
= bfd_get_section_name (dynobj
, sec
);
2433 if (strcmp (name
, ".got.plt") == 0)
2435 else if (strncmp (name
, ".rel", 4) == 0)
2439 const char *outname
;
2442 /* If this relocation section applies to a read only
2443 section, then we probably need a DT_TEXTREL entry. */
2444 outname
= bfd_get_section_name (output_bfd
,
2445 sec
->output_section
);
2446 if (outname
[4] == 'a')
2451 target
= bfd_get_section_by_name (output_bfd
, outname
);
2453 && (target
->flags
& SEC_READONLY
) != 0
2454 && (target
->flags
& SEC_ALLOC
) != 0)
2457 /* We use the reloc_count field as a counter if we need to
2458 copy relocs into the output file. */
2459 sec
->reloc_count
= 0;
2467 _bfd_strip_section_from_output (info
, sec
);
2470 /* Allocate memory for the section contents. */
2471 sec
->contents
= (bfd_byte
*) bfd_zalloc(dynobj
, sec
->_raw_size
);
2472 if (sec
->contents
== NULL
&& sec
->_raw_size
!= 0)
2477 if (elf_hash_table (info
)->dynamic_sections_created
)
2479 /* Add some entries to the .dynamic section. We fill in the values
2480 later (in finish_dynamic_sections) but we must add the entries now
2481 so that we get the correct size for the .dynamic section. */
2485 /* The DT_DEBUG entry is filled in by the dynamic linker and used
2487 if (!bfd_elfNN_add_dynamic_entry (info
, DT_DEBUG
, 0))
2491 if (! bfd_elfNN_add_dynamic_entry (info
, DT_IA_64_PLT_RESERVE
, 0))
2493 if (! bfd_elfNN_add_dynamic_entry (info
, DT_PLTGOT
, 0))
2498 if (! bfd_elfNN_add_dynamic_entry (info
, DT_PLTRELSZ
, 0)
2499 || ! bfd_elfNN_add_dynamic_entry (info
, DT_PLTREL
, DT_RELA
)
2500 || ! bfd_elfNN_add_dynamic_entry (info
, DT_JMPREL
, 0))
2504 if (! bfd_elfNN_add_dynamic_entry (info
, DT_RELA
, 0)
2505 || ! bfd_elfNN_add_dynamic_entry (info
, DT_RELASZ
, 0)
2506 || ! bfd_elfNN_add_dynamic_entry (info
, DT_RELAENT
,
2507 sizeof(ElfNN_External_Rela
)))
2512 if (! bfd_elfNN_add_dynamic_entry (info
, DT_TEXTREL
, 0))
2514 info
->flags
|= DF_TEXTREL
;
2518 /* ??? Perhaps force __gp local. */
2523 static bfd_reloc_status_type
2524 elfNN_ia64_install_value (abfd
, hit_addr
, val
, r_type
)
2528 unsigned int r_type
;
2530 const struct ia64_operand
*op
;
2531 int bigendian
= 0, shift
= 0;
2532 bfd_vma t0
, t1
, insn
, dword
;
2533 enum ia64_opnd opnd
;
2537 opnd
= IA64_OPND_NIL
;
2542 return bfd_reloc_ok
;
2544 /* Instruction relocations. */
2546 case R_IA64_IMM14
: opnd
= IA64_OPND_IMM14
; break;
2548 case R_IA64_PCREL21F
: opnd
= IA64_OPND_TGT25
; break;
2549 case R_IA64_PCREL21M
: opnd
= IA64_OPND_TGT25b
; break;
2550 case R_IA64_PCREL60B
: opnd
= IA64_OPND_TGT64
; break;
2551 case R_IA64_PCREL21B
:
2552 case R_IA64_PCREL21BI
:
2553 opnd
= IA64_OPND_TGT25c
;
2557 case R_IA64_GPREL22
:
2558 case R_IA64_LTOFF22
:
2559 case R_IA64_LTOFF22X
:
2560 case R_IA64_PLTOFF22
:
2561 case R_IA64_PCREL22
:
2562 case R_IA64_LTOFF_FPTR22
:
2563 opnd
= IA64_OPND_IMM22
;
2567 case R_IA64_GPREL64I
:
2568 case R_IA64_LTOFF64I
:
2569 case R_IA64_PLTOFF64I
:
2570 case R_IA64_PCREL64I
:
2571 case R_IA64_FPTR64I
:
2572 case R_IA64_LTOFF_FPTR64I
:
2573 opnd
= IA64_OPND_IMMU64
;
2576 /* Data relocations. */
2578 case R_IA64_DIR32MSB
:
2579 case R_IA64_GPREL32MSB
:
2580 case R_IA64_FPTR32MSB
:
2581 case R_IA64_PCREL32MSB
:
2582 case R_IA64_SEGREL32MSB
:
2583 case R_IA64_SECREL32MSB
:
2584 case R_IA64_LTV32MSB
:
2585 size
= 4; bigendian
= 1;
2588 case R_IA64_DIR32LSB
:
2589 case R_IA64_GPREL32LSB
:
2590 case R_IA64_FPTR32LSB
:
2591 case R_IA64_PCREL32LSB
:
2592 case R_IA64_SEGREL32LSB
:
2593 case R_IA64_SECREL32LSB
:
2594 case R_IA64_LTV32LSB
:
2595 size
= 4; bigendian
= 0;
2598 case R_IA64_DIR64MSB
:
2599 case R_IA64_GPREL64MSB
:
2600 case R_IA64_PLTOFF64MSB
:
2601 case R_IA64_FPTR64MSB
:
2602 case R_IA64_PCREL64MSB
:
2603 case R_IA64_LTOFF_FPTR64MSB
:
2604 case R_IA64_SEGREL64MSB
:
2605 case R_IA64_SECREL64MSB
:
2606 case R_IA64_LTV64MSB
:
2607 size
= 8; bigendian
= 1;
2610 case R_IA64_DIR64LSB
:
2611 case R_IA64_GPREL64LSB
:
2612 case R_IA64_PLTOFF64LSB
:
2613 case R_IA64_FPTR64LSB
:
2614 case R_IA64_PCREL64LSB
:
2615 case R_IA64_LTOFF_FPTR64LSB
:
2616 case R_IA64_SEGREL64LSB
:
2617 case R_IA64_SECREL64LSB
:
2618 case R_IA64_LTV64LSB
:
2619 size
= 8; bigendian
= 0;
2622 /* Unsupported / Dynamic relocations. */
2624 return bfd_reloc_notsupported
;
2629 case IA64_OPND_IMMU64
:
2630 hit_addr
-= (long) hit_addr
& 0x3;
2631 t0
= bfd_get_64 (abfd
, hit_addr
);
2632 t1
= bfd_get_64 (abfd
, hit_addr
+ 8);
2634 /* tmpl/s: bits 0.. 5 in t0
2635 slot 0: bits 5..45 in t0
2636 slot 1: bits 46..63 in t0, bits 0..22 in t1
2637 slot 2: bits 23..63 in t1 */
2639 /* First, clear the bits that form the 64 bit constant. */
2640 t0
&= ~(0x3ffffLL
<< 46);
2642 | (( (0x07fLL
<< 13) | (0x1ffLL
<< 27)
2643 | (0x01fLL
<< 22) | (0x001LL
<< 21)
2644 | (0x001LL
<< 36)) << 23));
2646 t0
|= ((val
>> 22) & 0x03ffffLL
) << 46; /* 18 lsbs of imm41 */
2647 t1
|= ((val
>> 40) & 0x7fffffLL
) << 0; /* 23 msbs of imm41 */
2648 t1
|= ( (((val
>> 0) & 0x07f) << 13) /* imm7b */
2649 | (((val
>> 7) & 0x1ff) << 27) /* imm9d */
2650 | (((val
>> 16) & 0x01f) << 22) /* imm5c */
2651 | (((val
>> 21) & 0x001) << 21) /* ic */
2652 | (((val
>> 63) & 0x001) << 36)) << 23; /* i */
2654 bfd_put_64 (abfd
, t0
, hit_addr
);
2655 bfd_put_64 (abfd
, t1
, hit_addr
+ 8);
2658 case IA64_OPND_TGT64
:
2659 hit_addr
-= (long) hit_addr
& 0x3;
2660 t0
= bfd_get_64 (abfd
, hit_addr
);
2661 t1
= bfd_get_64 (abfd
, hit_addr
+ 8);
2663 /* tmpl/s: bits 0.. 5 in t0
2664 slot 0: bits 5..45 in t0
2665 slot 1: bits 46..63 in t0, bits 0..22 in t1
2666 slot 2: bits 23..63 in t1 */
2668 /* First, clear the bits that form the 64 bit constant. */
2669 t0
&= ~(0x3ffffLL
<< 46);
2671 | ((1LL << 36 | 0xfffffLL
<< 13) << 23));
2674 t0
|= ((val
>> 20) & 0xffffLL
) << 2 << 46; /* 16 lsbs of imm39 */
2675 t1
|= ((val
>> 36) & 0x7fffffLL
) << 0; /* 23 msbs of imm39 */
2676 t1
|= ((((val
>> 0) & 0xfffffLL
) << 13) /* imm20b */
2677 | (((val
>> 59) & 0x1LL
) << 36)) << 23; /* i */
2679 bfd_put_64 (abfd
, t0
, hit_addr
);
2680 bfd_put_64 (abfd
, t1
, hit_addr
+ 8);
2684 switch ((long) hit_addr
& 0x3)
2686 case 0: shift
= 5; break;
2687 case 1: shift
= 14; hit_addr
+= 3; break;
2688 case 2: shift
= 23; hit_addr
+= 6; break;
2689 case 3: return bfd_reloc_notsupported
; /* shouldn't happen... */
2691 dword
= bfd_get_64 (abfd
, hit_addr
);
2692 insn
= (dword
>> shift
) & 0x1ffffffffffLL
;
2694 op
= elf64_ia64_operands
+ opnd
;
2695 err
= (*op
->insert
) (op
, val
, &insn
);
2697 return bfd_reloc_overflow
;
2699 dword
&= ~(0x1ffffffffffLL
<< shift
);
2700 dword
|= (insn
<< shift
);
2701 bfd_put_64 (abfd
, dword
, hit_addr
);
2705 /* A data relocation. */
2708 bfd_putb32 (val
, hit_addr
);
2710 bfd_putb64 (val
, hit_addr
);
2713 bfd_putl32 (val
, hit_addr
);
2715 bfd_putl64 (val
, hit_addr
);
2719 return bfd_reloc_ok
;
2723 elfNN_ia64_install_dyn_reloc (abfd
, info
, sec
, srel
, offset
, type
,
2726 struct bfd_link_info
*info
;
2734 Elf_Internal_Rela outrel
;
2736 outrel
.r_offset
= (sec
->output_section
->vma
2737 + sec
->output_offset
2740 BFD_ASSERT (dynindx
!= -1);
2741 outrel
.r_info
= ELFNN_R_INFO (dynindx
, type
);
2742 outrel
.r_addend
= addend
;
2744 if (elf_section_data (sec
)->stab_info
!= NULL
)
2746 /* This may be NULL for linker-generated relocations, as it is
2747 inconvenient to pass all the bits around. And this shouldn't
2749 BFD_ASSERT (info
!= NULL
);
2751 offset
= (_bfd_stab_section_offset
2752 (abfd
, &elf_hash_table (info
)->stab_info
, sec
,
2753 &elf_section_data (sec
)->stab_info
, offset
));
2754 if (offset
== (bfd_vma
) -1)
2756 /* Run for the hills. We shouldn't be outputting a relocation
2757 for this. So do what everyone else does and output a no-op. */
2758 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
2759 outrel
.r_addend
= 0;
2762 outrel
.r_offset
= offset
;
2765 bfd_elfNN_swap_reloca_out (abfd
, &outrel
,
2766 ((ElfNN_External_Rela
*) srel
->contents
2767 + srel
->reloc_count
++));
2768 BFD_ASSERT (sizeof(ElfNN_External_Rela
) * srel
->reloc_count
2769 <= srel
->_cooked_size
);
2772 /* Store an entry for target address TARGET_ADDR in the linkage table
2773 and return the gp-relative address of the linkage table entry. */
2776 set_got_entry (abfd
, info
, dyn_i
, dynindx
, addend
, value
, dyn_r_type
)
2778 struct bfd_link_info
*info
;
2779 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2783 unsigned int dyn_r_type
;
2785 struct elfNN_ia64_link_hash_table
*ia64_info
;
2788 ia64_info
= elfNN_ia64_hash_table (info
);
2789 got_sec
= ia64_info
->got_sec
;
2791 BFD_ASSERT ((dyn_i
->got_offset
& 7) == 0);
2793 if (! dyn_i
->got_done
)
2795 dyn_i
->got_done
= true;
2797 /* Store the target address in the linkage table entry. */
2798 bfd_put_64 (abfd
, value
, got_sec
->contents
+ dyn_i
->got_offset
);
2800 /* Install a dynamic relocation if needed. */
2802 || elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, info
)
2803 || (dynindx
!= -1 && dyn_r_type
== R_IA64_FPTR64LSB
))
2807 dyn_r_type
= R_IA64_REL64LSB
;
2812 if (bfd_big_endian (abfd
))
2816 case R_IA64_REL64LSB
:
2817 dyn_r_type
= R_IA64_REL64MSB
;
2819 case R_IA64_DIR64LSB
:
2820 dyn_r_type
= R_IA64_DIR64MSB
;
2822 case R_IA64_FPTR64LSB
:
2823 dyn_r_type
= R_IA64_FPTR64MSB
;
2831 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, got_sec
,
2832 ia64_info
->rel_got_sec
,
2833 dyn_i
->got_offset
, dyn_r_type
,
2838 /* Return the address of the linkage table entry. */
2839 value
= (got_sec
->output_section
->vma
2840 + got_sec
->output_offset
2841 + dyn_i
->got_offset
);
2846 /* Fill in a function descriptor consisting of the function's code
2847 address and its global pointer. Return the descriptor's address. */
2850 set_fptr_entry (abfd
, info
, dyn_i
, value
)
2852 struct bfd_link_info
*info
;
2853 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2856 struct elfNN_ia64_link_hash_table
*ia64_info
;
2859 ia64_info
= elfNN_ia64_hash_table (info
);
2860 fptr_sec
= ia64_info
->fptr_sec
;
2862 if (!dyn_i
->fptr_done
)
2864 dyn_i
->fptr_done
= 1;
2866 /* Fill in the function descriptor. */
2867 bfd_put_64 (abfd
, value
, fptr_sec
->contents
+ dyn_i
->fptr_offset
);
2868 bfd_put_64 (abfd
, _bfd_get_gp_value (abfd
),
2869 fptr_sec
->contents
+ dyn_i
->fptr_offset
+ 8);
2872 /* Return the descriptor's address. */
2873 value
= (fptr_sec
->output_section
->vma
2874 + fptr_sec
->output_offset
2875 + dyn_i
->fptr_offset
);
2880 /* Fill in a PLTOFF entry consisting of the function's code address
2881 and its global pointer. Return the descriptor's address. */
2884 set_pltoff_entry (abfd
, info
, dyn_i
, value
, is_plt
)
2886 struct bfd_link_info
*info
;
2887 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2891 struct elfNN_ia64_link_hash_table
*ia64_info
;
2892 asection
*pltoff_sec
;
2894 ia64_info
= elfNN_ia64_hash_table (info
);
2895 pltoff_sec
= ia64_info
->pltoff_sec
;
2897 /* Don't do anything if this symbol uses a real PLT entry. In
2898 that case, we'll fill this in during finish_dynamic_symbol. */
2899 if ((! dyn_i
->want_plt
|| is_plt
)
2900 && !dyn_i
->pltoff_done
)
2902 bfd_vma gp
= _bfd_get_gp_value (abfd
);
2904 /* Fill in the function descriptor. */
2905 bfd_put_64 (abfd
, value
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
);
2906 bfd_put_64 (abfd
, gp
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
+ 8);
2908 /* Install dynamic relocations if needed. */
2909 if (!is_plt
&& info
->shared
)
2911 unsigned int dyn_r_type
;
2913 if (bfd_big_endian (abfd
))
2914 dyn_r_type
= R_IA64_REL64MSB
;
2916 dyn_r_type
= R_IA64_REL64LSB
;
2918 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
2919 ia64_info
->rel_pltoff_sec
,
2920 dyn_i
->pltoff_offset
,
2921 dyn_r_type
, 0, value
);
2922 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
2923 ia64_info
->rel_pltoff_sec
,
2924 dyn_i
->pltoff_offset
+ 8,
2928 dyn_i
->pltoff_done
= 1;
2931 /* Return the descriptor's address. */
2932 value
= (pltoff_sec
->output_section
->vma
2933 + pltoff_sec
->output_offset
2934 + dyn_i
->pltoff_offset
);
2939 /* Called through qsort to sort the .IA_64.unwind section during a
2940 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
2941 to the output bfd so we can do proper endianness frobbing. */
2943 static bfd
*elfNN_ia64_unwind_entry_compare_bfd
;
2946 elfNN_ia64_unwind_entry_compare (a
, b
)
2952 av
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, a
);
2953 bv
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, b
);
2955 return (av
< bv
? -1 : av
> bv
? 1 : 0);
2959 elfNN_ia64_final_link (abfd
, info
)
2961 struct bfd_link_info
*info
;
2963 struct elfNN_ia64_link_hash_table
*ia64_info
;
2964 asection
*unwind_output_sec
;
2966 ia64_info
= elfNN_ia64_hash_table (info
);
2968 /* Make sure we've got ourselves a nice fat __gp value. */
2969 if (!info
->relocateable
)
2971 bfd_vma min_vma
= (bfd_vma
) -1, max_vma
= 0;
2972 bfd_vma min_short_vma
= min_vma
, max_short_vma
= 0;
2973 struct elf_link_hash_entry
*gp
;
2977 /* Find the min and max vma of all sections marked short. Also
2978 collect min and max vma of any type, for use in selecting a
2980 for (os
= abfd
->sections
; os
; os
= os
->next
)
2984 if ((os
->flags
& SEC_ALLOC
) == 0)
2988 hi
= os
->vma
+ os
->_raw_size
;
2996 if (os
->flags
& SEC_SMALL_DATA
)
2998 if (min_short_vma
> lo
)
3000 if (max_short_vma
< hi
)
3005 /* See if the user wants to force a value. */
3006 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", false,
3010 && (gp
->root
.type
== bfd_link_hash_defined
3011 || gp
->root
.type
== bfd_link_hash_defweak
))
3013 asection
*gp_sec
= gp
->root
.u
.def
.section
;
3014 gp_val
= (gp
->root
.u
.def
.value
3015 + gp_sec
->output_section
->vma
3016 + gp_sec
->output_offset
);
3020 /* Pick a sensible value. */
3022 asection
*got_sec
= ia64_info
->got_sec
;
3024 /* Start with just the address of the .got. */
3026 gp_val
= got_sec
->output_section
->vma
;
3027 else if (max_short_vma
!= 0)
3028 gp_val
= min_short_vma
;
3032 /* If it is possible to address the entire image, but we
3033 don't with the choice above, adjust. */
3034 if (max_vma
- min_vma
< 0x400000
3035 && max_vma
- gp_val
<= 0x200000
3036 && gp_val
- min_vma
> 0x200000)
3037 gp_val
= min_vma
+ 0x200000;
3038 else if (max_short_vma
!= 0)
3040 /* If we don't cover all the short data, adjust. */
3041 if (max_short_vma
- gp_val
>= 0x200000)
3042 gp_val
= min_short_vma
+ 0x200000;
3044 /* If we're addressing stuff past the end, adjust back. */
3045 if (gp_val
> max_vma
)
3046 gp_val
= max_vma
- 0x200000 + 8;
3050 /* Validate whether all SHF_IA_64_SHORT sections are within
3051 range of the chosen GP. */
3053 if (max_short_vma
!= 0)
3055 if (max_short_vma
- min_short_vma
>= 0x400000)
3057 (*_bfd_error_handler
)
3058 (_("%s: short data segment overflowed (0x%lx >= 0x400000)"),
3059 bfd_get_filename (abfd
),
3060 (unsigned long)(max_short_vma
- min_short_vma
));
3063 else if ((gp_val
> min_short_vma
3064 && gp_val
- min_short_vma
> 0x200000)
3065 || (gp_val
< max_short_vma
3066 && max_short_vma
- gp_val
>= 0x200000))
3068 (*_bfd_error_handler
)
3069 (_("%s: __gp does not cover short data segment"),
3070 bfd_get_filename (abfd
));
3075 _bfd_set_gp_value (abfd
, gp_val
);
3078 /* If we're producing a final executable, we need to sort the contents
3079 of the .IA_64.unwind section. Force this section to be relocated
3080 into memory rather than written immediately to the output file. */
3081 unwind_output_sec
= NULL
;
3082 if (!info
->relocateable
)
3084 asection
*s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_unwind
);
3087 unwind_output_sec
= s
->output_section
;
3088 unwind_output_sec
->contents
3089 = bfd_malloc (unwind_output_sec
->_raw_size
);
3090 if (unwind_output_sec
->contents
== NULL
)
3095 /* Invoke the regular ELF backend linker to do all the work. */
3096 if (!bfd_elfNN_bfd_final_link (abfd
, info
))
3099 if (unwind_output_sec
)
3101 elfNN_ia64_unwind_entry_compare_bfd
= abfd
;
3102 qsort (unwind_output_sec
->contents
, unwind_output_sec
->_raw_size
/ 24,
3103 24, elfNN_ia64_unwind_entry_compare
);
3105 if (! bfd_set_section_contents (abfd
, unwind_output_sec
,
3106 unwind_output_sec
->contents
, 0,
3107 unwind_output_sec
->_raw_size
))
3115 elfNN_ia64_relocate_section (output_bfd
, info
, input_bfd
, input_section
,
3116 contents
, relocs
, local_syms
, local_sections
)
3118 struct bfd_link_info
*info
;
3120 asection
*input_section
;
3122 Elf_Internal_Rela
*relocs
;
3123 Elf_Internal_Sym
*local_syms
;
3124 asection
**local_sections
;
3126 struct elfNN_ia64_link_hash_table
*ia64_info
;
3127 Elf_Internal_Shdr
*symtab_hdr
;
3128 Elf_Internal_Rela
*rel
;
3129 Elf_Internal_Rela
*relend
;
3131 boolean ret_val
= true; /* for non-fatal errors */
3134 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3135 ia64_info
= elfNN_ia64_hash_table (info
);
3137 /* Infect various flags from the input section to the output section. */
3138 if (info
->relocateable
)
3142 flags
= elf_section_data(input_section
)->this_hdr
.sh_flags
;
3143 flags
&= SHF_IA_64_NORECOV
;
3145 elf_section_data(input_section
->output_section
)
3146 ->this_hdr
.sh_flags
|= flags
;
3149 gp_val
= _bfd_get_gp_value (output_bfd
);
3150 srel
= get_reloc_section (input_bfd
, ia64_info
, input_section
, false);
3153 relend
= relocs
+ input_section
->reloc_count
;
3154 for (; rel
< relend
; ++rel
)
3156 struct elf_link_hash_entry
*h
;
3157 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3158 bfd_reloc_status_type r
;
3159 reloc_howto_type
*howto
;
3160 unsigned long r_symndx
;
3161 Elf_Internal_Sym
*sym
;
3162 unsigned int r_type
;
3166 boolean dynamic_symbol_p
;
3167 boolean undef_weak_ref
;
3169 r_type
= ELFNN_R_TYPE (rel
->r_info
);
3170 if (r_type
> R_IA64_MAX_RELOC_CODE
)
3172 (*_bfd_error_handler
)
3173 (_("%s: unknown relocation type %d"),
3174 bfd_get_filename (input_bfd
), (int)r_type
);
3175 bfd_set_error (bfd_error_bad_value
);
3179 howto
= lookup_howto (r_type
);
3180 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
3182 if (info
->relocateable
)
3184 /* This is a relocateable link. We don't have to change
3185 anything, unless the reloc is against a section symbol,
3186 in which case we have to adjust according to where the
3187 section symbol winds up in the output section. */
3188 if (r_symndx
< symtab_hdr
->sh_info
)
3190 sym
= local_syms
+ r_symndx
;
3191 if (ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
)
3193 sym_sec
= local_sections
[r_symndx
];
3194 rel
->r_addend
+= sym_sec
->output_offset
;
3200 /* This is a final link. */
3205 undef_weak_ref
= false;
3207 if (r_symndx
< symtab_hdr
->sh_info
)
3209 /* Reloc against local symbol. */
3210 sym
= local_syms
+ r_symndx
;
3211 sym_sec
= local_sections
[r_symndx
];
3212 value
= (sym_sec
->output_section
->vma
3213 + sym_sec
->output_offset
3220 /* Reloc against global symbol. */
3221 indx
= r_symndx
- symtab_hdr
->sh_info
;
3222 h
= elf_sym_hashes (input_bfd
)[indx
];
3223 while (h
->root
.type
== bfd_link_hash_indirect
3224 || h
->root
.type
== bfd_link_hash_warning
)
3225 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
3228 if (h
->root
.type
== bfd_link_hash_defined
3229 || h
->root
.type
== bfd_link_hash_defweak
)
3231 sym_sec
= h
->root
.u
.def
.section
;
3233 /* Detect the cases that sym_sec->output_section is
3234 expected to be NULL -- all cases in which the symbol
3235 is defined in another shared module. This includes
3236 PLT relocs for which we've created a PLT entry and
3237 other relocs for which we're prepared to create
3238 dynamic relocations. */
3239 /* ??? Just accept it NULL and continue. */
3241 if (sym_sec
->output_section
!= NULL
)
3243 value
= (h
->root
.u
.def
.value
3244 + sym_sec
->output_section
->vma
3245 + sym_sec
->output_offset
);
3248 else if (h
->root
.type
== bfd_link_hash_undefweak
)
3249 undef_weak_ref
= true;
3250 else if (info
->shared
&& !info
->symbolic
3251 && !info
->no_undefined
3252 && ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
)
3256 if (! ((*info
->callbacks
->undefined_symbol
)
3257 (info
, h
->root
.root
.string
, input_bfd
,
3258 input_section
, rel
->r_offset
,
3259 (!info
->shared
|| info
->no_undefined
3260 || ELF_ST_VISIBILITY (h
->other
)))))
3267 hit_addr
= contents
+ rel
->r_offset
;
3268 value
+= rel
->r_addend
;
3269 dynamic_symbol_p
= elfNN_ia64_dynamic_symbol_p (h
, info
);
3280 case R_IA64_DIR32MSB
:
3281 case R_IA64_DIR32LSB
:
3282 case R_IA64_DIR64MSB
:
3283 case R_IA64_DIR64LSB
:
3284 /* Install a dynamic relocation for this reloc. */
3285 if ((dynamic_symbol_p
|| info
->shared
)
3286 && (input_section
->flags
& SEC_ALLOC
) != 0)
3288 unsigned int dyn_r_type
;
3292 BFD_ASSERT (srel
!= NULL
);
3294 /* If we don't need dynamic symbol lookup, find a
3295 matching RELATIVE relocation. */
3296 dyn_r_type
= r_type
;
3297 if (dynamic_symbol_p
)
3299 dynindx
= h
->dynindx
;
3300 addend
= rel
->r_addend
;
3307 case R_IA64_DIR32MSB
:
3308 dyn_r_type
= R_IA64_REL32MSB
;
3310 case R_IA64_DIR32LSB
:
3311 dyn_r_type
= R_IA64_REL32LSB
;
3313 case R_IA64_DIR64MSB
:
3314 dyn_r_type
= R_IA64_REL64MSB
;
3316 case R_IA64_DIR64LSB
:
3317 dyn_r_type
= R_IA64_REL64LSB
;
3321 /* We can't represent this without a dynamic symbol.
3322 Adjust the relocation to be against an output
3323 section symbol, which are always present in the
3324 dynamic symbol table. */
3325 /* ??? People shouldn't be doing non-pic code in
3326 shared libraries. Hork. */
3327 (*_bfd_error_handler
)
3328 (_("%s: linking non-pic code in a shared library"),
3329 bfd_get_filename (input_bfd
));
3337 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
3338 srel
, rel
->r_offset
, dyn_r_type
,
3343 case R_IA64_LTV32MSB
:
3344 case R_IA64_LTV32LSB
:
3345 case R_IA64_LTV64MSB
:
3346 case R_IA64_LTV64LSB
:
3347 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
3350 case R_IA64_GPREL22
:
3351 case R_IA64_GPREL64I
:
3352 case R_IA64_GPREL32MSB
:
3353 case R_IA64_GPREL32LSB
:
3354 case R_IA64_GPREL64MSB
:
3355 case R_IA64_GPREL64LSB
:
3356 if (dynamic_symbol_p
)
3358 (*_bfd_error_handler
)
3359 (_("%s: @gprel relocation against dynamic symbol %s"),
3360 bfd_get_filename (input_bfd
), h
->root
.root
.string
);
3365 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
3368 case R_IA64_LTOFF22
:
3369 case R_IA64_LTOFF22X
:
3370 case R_IA64_LTOFF64I
:
3371 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, false);
3372 value
= set_got_entry (input_bfd
, info
, dyn_i
, (h
? h
->dynindx
: -1),
3373 rel
->r_addend
, value
, R_IA64_DIR64LSB
);
3375 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
3378 case R_IA64_PLTOFF22
:
3379 case R_IA64_PLTOFF64I
:
3380 case R_IA64_PLTOFF64MSB
:
3381 case R_IA64_PLTOFF64LSB
:
3382 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, false);
3383 value
= set_pltoff_entry (output_bfd
, info
, dyn_i
, value
, false);
3385 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
3388 case R_IA64_FPTR64I
:
3389 case R_IA64_FPTR32MSB
:
3390 case R_IA64_FPTR32LSB
:
3391 case R_IA64_FPTR64MSB
:
3392 case R_IA64_FPTR64LSB
:
3393 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, false);
3394 if (dyn_i
->want_fptr
)
3396 if (!undef_weak_ref
)
3397 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
3403 /* Otherwise, we expect the dynamic linker to create
3408 if (h
->dynindx
!= -1)
3409 dynindx
= h
->dynindx
;
3411 dynindx
= (_bfd_elf_link_lookup_local_dynindx
3412 (info
, h
->root
.u
.def
.section
->owner
,
3413 global_sym_index (h
)));
3417 dynindx
= (_bfd_elf_link_lookup_local_dynindx
3418 (info
, input_bfd
, r_symndx
));
3421 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
3422 srel
, rel
->r_offset
, r_type
,
3423 dynindx
, rel
->r_addend
);
3427 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
3430 case R_IA64_LTOFF_FPTR22
:
3431 case R_IA64_LTOFF_FPTR64I
:
3432 case R_IA64_LTOFF_FPTR64MSB
:
3433 case R_IA64_LTOFF_FPTR64LSB
:
3437 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, false);
3438 if (dyn_i
->want_fptr
)
3440 BFD_ASSERT (h
== NULL
|| h
->dynindx
== -1)
3441 if (!undef_weak_ref
)
3442 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
3447 /* Otherwise, we expect the dynamic linker to create
3451 if (h
->dynindx
!= -1)
3452 dynindx
= h
->dynindx
;
3454 dynindx
= (_bfd_elf_link_lookup_local_dynindx
3455 (info
, h
->root
.u
.def
.section
->owner
,
3456 global_sym_index (h
)));
3459 dynindx
= (_bfd_elf_link_lookup_local_dynindx
3460 (info
, input_bfd
, r_symndx
));
3464 value
= set_got_entry (output_bfd
, info
, dyn_i
, dynindx
,
3465 rel
->r_addend
, value
, R_IA64_FPTR64LSB
);
3467 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
3471 case R_IA64_PCREL32MSB
:
3472 case R_IA64_PCREL32LSB
:
3473 case R_IA64_PCREL64MSB
:
3474 case R_IA64_PCREL64LSB
:
3475 /* Install a dynamic relocation for this reloc. */
3476 if (dynamic_symbol_p
)
3478 BFD_ASSERT (srel
!= NULL
);
3480 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
3481 srel
, rel
->r_offset
, r_type
,
3482 h
->dynindx
, rel
->r_addend
);
3486 case R_IA64_PCREL21BI
:
3487 case R_IA64_PCREL21F
:
3488 case R_IA64_PCREL21M
:
3489 /* ??? These two are only used for speculation fixup code.
3490 They should never be dynamic. */
3491 if (dynamic_symbol_p
)
3493 (*_bfd_error_handler
)
3494 (_("%s: dynamic relocation against speculation fixup"),
3495 bfd_get_filename (input_bfd
));
3501 (*_bfd_error_handler
)
3502 (_("%s: speculation fixup against undefined weak symbol"),
3503 bfd_get_filename (input_bfd
));
3509 case R_IA64_PCREL21B
:
3510 case R_IA64_PCREL60B
:
3511 /* We should have created a PLT entry for any dynamic symbol. */
3514 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, false);
3516 if (dyn_i
&& dyn_i
->want_plt2
)
3518 /* Should have caught this earlier. */
3519 BFD_ASSERT (rel
->r_addend
== 0);
3521 value
= (ia64_info
->plt_sec
->output_section
->vma
3522 + ia64_info
->plt_sec
->output_offset
3523 + dyn_i
->plt2_offset
);
3527 /* Since there's no PLT entry, Validate that this is
3529 BFD_ASSERT (undef_weak_ref
|| sym_sec
->output_section
!= NULL
);
3531 /* If the symbol is undef_weak, we shouldn't be trying
3532 to call it. There's every chance that we'd wind up
3533 with an out-of-range fixup here. Don't bother setting
3534 any value at all. */
3540 case R_IA64_PCREL22
:
3541 case R_IA64_PCREL64I
:
3543 /* Make pc-relative. */
3544 value
-= (input_section
->output_section
->vma
3545 + input_section
->output_offset
3546 + rel
->r_offset
) & ~ (bfd_vma
) 0x3;
3547 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
3550 case R_IA64_SEGREL32MSB
:
3551 case R_IA64_SEGREL32LSB
:
3552 case R_IA64_SEGREL64MSB
:
3553 case R_IA64_SEGREL64LSB
:
3555 struct elf_segment_map
*m
;
3556 Elf_Internal_Phdr
*p
;
3558 /* Find the segment that contains the output_section. */
3559 for (m
= elf_tdata (output_bfd
)->segment_map
,
3560 p
= elf_tdata (output_bfd
)->phdr
;
3565 for (i
= m
->count
- 1; i
>= 0; i
--)
3566 if (m
->sections
[i
] == sym_sec
->output_section
)
3574 /* If the input section was discarded from the output, then
3577 if (bfd_is_abs_section (sym_sec
->output_section
))
3580 r
= bfd_reloc_notsupported
;
3584 /* The VMA of the segment is the vaddr of the associated
3586 if (value
> p
->p_vaddr
)
3587 value
-= p
->p_vaddr
;
3590 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
,
3596 case R_IA64_SECREL32MSB
:
3597 case R_IA64_SECREL32LSB
:
3598 case R_IA64_SECREL64MSB
:
3599 case R_IA64_SECREL64LSB
:
3600 /* Make output-section relative. */
3601 if (value
> input_section
->output_section
->vma
)
3602 value
-= input_section
->output_section
->vma
;
3605 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
3608 case R_IA64_IPLTMSB
:
3609 case R_IA64_IPLTLSB
:
3610 /* Install a dynamic relocation for this reloc. */
3611 if ((dynamic_symbol_p
|| info
->shared
)
3612 && (input_section
->flags
& SEC_ALLOC
) != 0)
3614 BFD_ASSERT (srel
!= NULL
);
3616 /* If we don't need dynamic symbol lookup, install two
3617 RELATIVE relocations. */
3618 if (! dynamic_symbol_p
)
3620 unsigned int dyn_r_type
;
3622 if (r_type
== R_IA64_IPLTMSB
)
3623 dyn_r_type
= R_IA64_REL64MSB
;
3625 dyn_r_type
= R_IA64_REL64LSB
;
3627 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
3629 srel
, rel
->r_offset
,
3630 dyn_r_type
, 0, value
);
3631 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
3633 srel
, rel
->r_offset
+ 8,
3634 dyn_r_type
, 0, gp_val
);
3637 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
3638 srel
, rel
->r_offset
, r_type
,
3639 h
->dynindx
, rel
->r_addend
);
3642 if (r_type
== R_IA64_IPLTMSB
)
3643 r_type
= R_IA64_DIR64MSB
;
3645 r_type
= R_IA64_DIR64LSB
;
3646 elfNN_ia64_install_value (output_bfd
, hit_addr
, value
, r_type
);
3647 r
= elfNN_ia64_install_value (output_bfd
, hit_addr
+ 8, gp_val
,
3652 r
= bfd_reloc_notsupported
;
3661 case bfd_reloc_undefined
:
3662 /* This can happen for global table relative relocs if
3663 __gp is undefined. This is a panic situation so we
3664 don't try to continue. */
3665 (*info
->callbacks
->undefined_symbol
)
3666 (info
, "__gp", input_bfd
, input_section
, rel
->r_offset
, 1);
3669 case bfd_reloc_notsupported
:
3674 name
= h
->root
.root
.string
;
3677 name
= bfd_elf_string_from_elf_section (input_bfd
,
3678 symtab_hdr
->sh_link
,
3683 name
= bfd_section_name (input_bfd
, input_section
);
3685 if (!(*info
->callbacks
->warning
) (info
, _("unsupported reloc"),
3687 input_section
, rel
->r_offset
))
3693 case bfd_reloc_dangerous
:
3694 case bfd_reloc_outofrange
:
3695 case bfd_reloc_overflow
:
3701 name
= h
->root
.root
.string
;
3704 name
= bfd_elf_string_from_elf_section (input_bfd
,
3705 symtab_hdr
->sh_link
,
3710 name
= bfd_section_name (input_bfd
, input_section
);
3712 if (!(*info
->callbacks
->reloc_overflow
) (info
, name
,
3728 elfNN_ia64_finish_dynamic_symbol (output_bfd
, info
, h
, sym
)
3730 struct bfd_link_info
*info
;
3731 struct elf_link_hash_entry
*h
;
3732 Elf_Internal_Sym
*sym
;
3734 struct elfNN_ia64_link_hash_table
*ia64_info
;
3735 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3737 ia64_info
= elfNN_ia64_hash_table (info
);
3738 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, false);
3740 /* Fill in the PLT data, if required. */
3741 if (dyn_i
&& dyn_i
->want_plt
)
3743 Elf_Internal_Rela outrel
;
3746 bfd_vma plt_addr
, pltoff_addr
, gp_val
, index
;
3747 ElfNN_External_Rela
*rel
;
3749 gp_val
= _bfd_get_gp_value (output_bfd
);
3751 /* Initialize the minimal PLT entry. */
3753 index
= (dyn_i
->plt_offset
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
3754 plt_sec
= ia64_info
->plt_sec
;
3755 loc
= plt_sec
->contents
+ dyn_i
->plt_offset
;
3757 memcpy (loc
, plt_min_entry
, PLT_MIN_ENTRY_SIZE
);
3758 elfNN_ia64_install_value (output_bfd
, loc
, index
, R_IA64_IMM22
);
3759 elfNN_ia64_install_value (output_bfd
, loc
+2, -dyn_i
->plt_offset
,
3762 plt_addr
= (plt_sec
->output_section
->vma
3763 + plt_sec
->output_offset
3764 + dyn_i
->plt_offset
);
3765 pltoff_addr
= set_pltoff_entry (output_bfd
, info
, dyn_i
, plt_addr
, true);
3767 /* Initialize the FULL PLT entry, if needed. */
3768 if (dyn_i
->want_plt2
)
3770 loc
= plt_sec
->contents
+ dyn_i
->plt2_offset
;
3772 memcpy (loc
, plt_full_entry
, PLT_FULL_ENTRY_SIZE
);
3773 elfNN_ia64_install_value (output_bfd
, loc
, pltoff_addr
- gp_val
,
3776 /* Mark the symbol as undefined, rather than as defined in the
3777 plt section. Leave the value alone. */
3778 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
3779 first place. But perhaps elflink.h did some for us. */
3780 if ((h
->elf_link_hash_flags
& ELF_LINK_HASH_DEF_REGULAR
) == 0)
3781 sym
->st_shndx
= SHN_UNDEF
;
3784 /* Create the dynamic relocation. */
3785 outrel
.r_offset
= pltoff_addr
;
3786 if (bfd_little_endian (output_bfd
))
3787 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTLSB
);
3789 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTMSB
);
3790 outrel
.r_addend
= 0;
3792 /* This is fun. In the .IA_64.pltoff section, we've got entries
3793 that correspond both to real PLT entries, and those that
3794 happened to resolve to local symbols but need to be created
3795 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
3796 relocations for the real PLT should come at the end of the
3797 section, so that they can be indexed by plt entry at runtime.
3799 We emitted all of the relocations for the non-PLT @pltoff
3800 entries during relocate_section. So we can consider the
3801 existing sec->reloc_count to be the base of the array of
3804 rel
= (ElfNN_External_Rela
*)ia64_info
->rel_pltoff_sec
->contents
;
3805 rel
+= ia64_info
->rel_pltoff_sec
->reloc_count
;
3807 bfd_elfNN_swap_reloca_out (output_bfd
, &outrel
, rel
+ index
);
3810 /* Mark some specially defined symbols as absolute. */
3811 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
3812 || strcmp (h
->root
.root
.string
, "_GLOBAL_OFFSET_TABLE_") == 0
3813 || strcmp (h
->root
.root
.string
, "_PROCEDURE_LINKAGE_TABLE_") == 0)
3814 sym
->st_shndx
= SHN_ABS
;
3820 elfNN_ia64_finish_dynamic_sections (abfd
, info
)
3822 struct bfd_link_info
*info
;
3824 struct elfNN_ia64_link_hash_table
*ia64_info
;
3827 ia64_info
= elfNN_ia64_hash_table (info
);
3828 dynobj
= ia64_info
->root
.dynobj
;
3830 if (elf_hash_table (info
)->dynamic_sections_created
)
3832 ElfNN_External_Dyn
*dyncon
, *dynconend
;
3833 asection
*sdyn
, *sgotplt
;
3836 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
3837 sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
3838 BFD_ASSERT (sdyn
!= NULL
);
3839 dyncon
= (ElfNN_External_Dyn
*) sdyn
->contents
;
3840 dynconend
= (ElfNN_External_Dyn
*) (sdyn
->contents
+ sdyn
->_raw_size
);
3842 gp_val
= _bfd_get_gp_value (abfd
);
3844 for (; dyncon
< dynconend
; dyncon
++)
3846 Elf_Internal_Dyn dyn
;
3848 bfd_elfNN_swap_dyn_in (dynobj
, dyncon
, &dyn
);
3853 dyn
.d_un
.d_ptr
= gp_val
;
3857 dyn
.d_un
.d_val
= (ia64_info
->minplt_entries
3858 * sizeof (ElfNN_External_Rela
));
3862 /* See the comment above in finish_dynamic_symbol. */
3863 dyn
.d_un
.d_ptr
= (ia64_info
->rel_pltoff_sec
->output_section
->vma
3864 + ia64_info
->rel_pltoff_sec
->output_offset
3865 + (ia64_info
->rel_pltoff_sec
->reloc_count
3866 * sizeof (ElfNN_External_Rela
)));
3869 case DT_IA_64_PLT_RESERVE
:
3870 dyn
.d_un
.d_ptr
= (sgotplt
->output_section
->vma
3871 + sgotplt
->output_offset
);
3875 /* Do not have RELASZ include JMPREL. This makes things
3876 easier on ld.so. This is not what the rest of BFD set up. */
3877 dyn
.d_un
.d_val
-= (ia64_info
->minplt_entries
3878 * sizeof (ElfNN_External_Rela
));
3882 bfd_elfNN_swap_dyn_out (abfd
, &dyn
, dyncon
);
3885 /* Initialize the PLT0 entry */
3886 if (ia64_info
->plt_sec
)
3888 bfd_byte
*loc
= ia64_info
->plt_sec
->contents
;
3891 memcpy (loc
, plt_header
, PLT_HEADER_SIZE
);
3893 pltres
= (sgotplt
->output_section
->vma
3894 + sgotplt
->output_offset
3897 elfNN_ia64_install_value (abfd
, loc
+1, pltres
, R_IA64_GPREL22
);
3904 /* ELF file flag handling: */
3906 /* Function to keep IA-64 specific file flags. */
3908 elfNN_ia64_set_private_flags (abfd
, flags
)
3912 BFD_ASSERT (!elf_flags_init (abfd
)
3913 || elf_elfheader (abfd
)->e_flags
== flags
);
3915 elf_elfheader (abfd
)->e_flags
= flags
;
3916 elf_flags_init (abfd
) = true;
3920 /* Copy backend specific data from one object module to another */
3922 elfNN_ia64_copy_private_bfd_data (ibfd
, obfd
)
3925 if ( bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
3926 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
3929 BFD_ASSERT (!elf_flags_init (obfd
)
3930 || (elf_elfheader (obfd
)->e_flags
3931 == elf_elfheader (ibfd
)->e_flags
));
3933 elf_elfheader (obfd
)->e_flags
= elf_elfheader (ibfd
)->e_flags
;
3934 elf_flags_init (obfd
) = true;
3938 /* Merge backend specific data from an object file to the output
3939 object file when linking. */
3941 elfNN_ia64_merge_private_bfd_data (ibfd
, obfd
)
3948 /* Don't even pretend to support mixed-format linking. */
3949 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
3950 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
3953 in_flags
= elf_elfheader (ibfd
)->e_flags
;
3954 out_flags
= elf_elfheader (obfd
)->e_flags
;
3956 if (! elf_flags_init (obfd
))
3958 elf_flags_init (obfd
) = true;
3959 elf_elfheader (obfd
)->e_flags
= in_flags
;
3961 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
3962 && bfd_get_arch_info (obfd
)->the_default
)
3964 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
3965 bfd_get_mach (ibfd
));
3971 /* Check flag compatibility. */
3972 if (in_flags
== out_flags
)
3975 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
3976 if (!(in_flags
& EF_IA_64_REDUCEDFP
) && (out_flags
& EF_IA_64_REDUCEDFP
))
3977 elf_elfheader (obfd
)->e_flags
&= ~EF_IA_64_REDUCEDFP
;
3979 if ((in_flags
& EF_IA_64_TRAPNIL
) != (out_flags
& EF_IA_64_TRAPNIL
))
3981 (*_bfd_error_handler
)
3982 (_("%s: linking trap-on-NULL-dereference with non-trapping files"),
3983 bfd_get_filename (ibfd
));
3985 bfd_set_error (bfd_error_bad_value
);
3988 if ((in_flags
& EF_IA_64_BE
) != (out_flags
& EF_IA_64_BE
))
3990 (*_bfd_error_handler
)
3991 (_("%s: linking big-endian files with little-endian files"),
3992 bfd_get_filename (ibfd
));
3994 bfd_set_error (bfd_error_bad_value
);
3997 if ((in_flags
& EF_IA_64_ABI64
) != (out_flags
& EF_IA_64_ABI64
))
3999 (*_bfd_error_handler
)
4000 (_("%s: linking 64-bit files with 32-bit files"),
4001 bfd_get_filename (ibfd
));
4003 bfd_set_error (bfd_error_bad_value
);
4006 if ((in_flags
& EF_IA_64_CONS_GP
) != (out_flags
& EF_IA_64_CONS_GP
))
4008 (*_bfd_error_handler
)
4009 (_("%s: linking constant-gp files with non-constant-gp files"),
4010 bfd_get_filename (ibfd
));
4012 bfd_set_error (bfd_error_bad_value
);
4015 if ((in_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
)
4016 != (out_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
))
4018 (*_bfd_error_handler
)
4019 (_("%s: linking auto-pic files with non-auto-pic files"),
4020 bfd_get_filename (ibfd
));
4022 bfd_set_error (bfd_error_bad_value
);
4030 elfNN_ia64_print_private_bfd_data (abfd
, ptr
)
4034 FILE *file
= (FILE *) ptr
;
4035 flagword flags
= elf_elfheader (abfd
)->e_flags
;
4037 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
4039 fprintf (file
, "private flags = %s%s%s%s%s%s%s%s\n",
4040 (flags
& EF_IA_64_TRAPNIL
) ? "TRAPNIL, " : "",
4041 (flags
& EF_IA_64_EXT
) ? "EXT, " : "",
4042 (flags
& EF_IA_64_BE
) ? "BE, " : "LE, ",
4043 (flags
& EF_IA_64_REDUCEDFP
) ? "REDUCEDFP, " : "",
4044 (flags
& EF_IA_64_CONS_GP
) ? "CONS_GP, " : "",
4045 (flags
& EF_IA_64_NOFUNCDESC_CONS_GP
) ? "NOFUNCDESC_CONS_GP, " : "",
4046 (flags
& EF_IA_64_ABSOLUTE
) ? "ABSOLUTE, " : "",
4047 (flags
& EF_IA_64_ABI64
) ? "ABI64" : "ABI32");
4049 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
4053 #define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
4054 #define TARGET_LITTLE_NAME "elfNN-ia64-little"
4055 #define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec
4056 #define TARGET_BIG_NAME "elfNN-ia64-big"
4057 #define ELF_ARCH bfd_arch_ia64
4058 #define ELF_MACHINE_CODE EM_IA_64
4059 #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
4060 #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
4061 #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
4063 #define elf_backend_section_from_shdr \
4064 elfNN_ia64_section_from_shdr
4065 #define elf_backend_section_flags \
4066 elfNN_ia64_section_flags
4067 #define elf_backend_fake_sections \
4068 elfNN_ia64_fake_sections
4069 #define elf_backend_add_symbol_hook \
4070 elfNN_ia64_add_symbol_hook
4071 #define elf_backend_additional_program_headers \
4072 elfNN_ia64_additional_program_headers
4073 #define elf_backend_modify_segment_map \
4074 elfNN_ia64_modify_segment_map
4075 #define elf_info_to_howto \
4076 elfNN_ia64_info_to_howto
4078 #define bfd_elfNN_bfd_reloc_type_lookup \
4079 elfNN_ia64_reloc_type_lookup
4080 #define bfd_elfNN_bfd_is_local_label_name \
4081 elfNN_ia64_is_local_label_name
4082 #define bfd_elfNN_bfd_relax_section \
4083 elfNN_ia64_relax_section
4085 /* Stuff for the BFD linker: */
4086 #define bfd_elfNN_bfd_link_hash_table_create \
4087 elfNN_ia64_hash_table_create
4088 #define elf_backend_create_dynamic_sections \
4089 elfNN_ia64_create_dynamic_sections
4090 #define elf_backend_check_relocs \
4091 elfNN_ia64_check_relocs
4092 #define elf_backend_adjust_dynamic_symbol \
4093 elfNN_ia64_adjust_dynamic_symbol
4094 #define elf_backend_size_dynamic_sections \
4095 elfNN_ia64_size_dynamic_sections
4096 #define elf_backend_relocate_section \
4097 elfNN_ia64_relocate_section
4098 #define elf_backend_finish_dynamic_symbol \
4099 elfNN_ia64_finish_dynamic_symbol
4100 #define elf_backend_finish_dynamic_sections \
4101 elfNN_ia64_finish_dynamic_sections
4102 #define bfd_elfNN_bfd_final_link \
4103 elfNN_ia64_final_link
4105 #define bfd_elfNN_bfd_copy_private_bfd_data \
4106 elfNN_ia64_copy_private_bfd_data
4107 #define bfd_elfNN_bfd_merge_private_bfd_data \
4108 elfNN_ia64_merge_private_bfd_data
4109 #define bfd_elfNN_bfd_set_private_flags \
4110 elfNN_ia64_set_private_flags
4111 #define bfd_elfNN_bfd_print_private_bfd_data \
4112 elfNN_ia64_print_private_bfd_data
4114 #define elf_backend_plt_readonly 1
4115 #define elf_backend_want_plt_sym 0
4116 #define elf_backend_plt_alignment 5
4117 #define elf_backend_got_header_size 0
4118 #define elf_backend_plt_header_size PLT_HEADER_SIZE
4119 #define elf_backend_want_got_plt 1
4120 #define elf_backend_may_use_rel_p 1
4121 #define elf_backend_may_use_rela_p 1
4122 #define elf_backend_default_use_rela_p 1
4123 #define elf_backend_want_dynbss 0
4124 #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
4125 #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
4127 #include "elfNN-target.h"