1 /* IA-64 support for 64-bit ELF
2 Copyright (C) 1998-2020 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
26 #include "opcode/ia64.h"
30 #include "elfxx-ia64.h"
35 #define LOG_SECTION_ALIGN 3
39 #define LOG_SECTION_ALIGN 2
42 #define is_ia64_elf(bfd) \
43 (bfd_get_flavour (bfd) == bfd_target_elf_flavour \
44 && elf_object_id (bfd) == IA64_ELF_DATA)
46 typedef struct bfd_hash_entry
*(*new_hash_entry_func
)
47 (struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *);
49 /* In dynamically (linker-) created sections, we generally need to keep track
50 of the place a symbol or expression got allocated to. This is done via hash
51 tables that store entries of the following type. */
53 struct elfNN_ia64_dyn_sym_info
55 /* The addend for which this entry is relevant. */
60 bfd_vma pltoff_offset
;
64 bfd_vma dtpmod_offset
;
65 bfd_vma dtprel_offset
;
67 /* The symbol table entry, if any, that this was derived from. */
68 struct elf_link_hash_entry
*h
;
70 /* Used to count non-got, non-plt relocations for delayed sizing
71 of relocation sections. */
72 struct elfNN_ia64_dyn_reloc_entry
74 struct elfNN_ia64_dyn_reloc_entry
*next
;
79 /* Is this reloc against readonly section? */
83 /* TRUE when the section contents have been updated. */
84 unsigned got_done
: 1;
85 unsigned fptr_done
: 1;
86 unsigned pltoff_done
: 1;
87 unsigned tprel_done
: 1;
88 unsigned dtpmod_done
: 1;
89 unsigned dtprel_done
: 1;
91 /* TRUE for the different kinds of linker data we want created. */
92 unsigned want_got
: 1;
93 unsigned want_gotx
: 1;
94 unsigned want_fptr
: 1;
95 unsigned want_ltoff_fptr
: 1;
96 unsigned want_plt
: 1;
97 unsigned want_plt2
: 1;
98 unsigned want_pltoff
: 1;
99 unsigned want_tprel
: 1;
100 unsigned want_dtpmod
: 1;
101 unsigned want_dtprel
: 1;
104 struct elfNN_ia64_local_hash_entry
108 /* The number of elements in elfNN_ia64_dyn_sym_info array. */
110 /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
111 unsigned int sorted_count
;
112 /* The size of elfNN_ia64_dyn_sym_info array. */
114 /* The array of elfNN_ia64_dyn_sym_info. */
115 struct elfNN_ia64_dyn_sym_info
*info
;
117 /* TRUE if this hash entry's addends was translated for
118 SHF_MERGE optimization. */
119 unsigned sec_merge_done
: 1;
122 struct elfNN_ia64_link_hash_entry
124 struct elf_link_hash_entry root
;
125 /* The number of elements in elfNN_ia64_dyn_sym_info array. */
127 /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
128 unsigned int sorted_count
;
129 /* The size of elfNN_ia64_dyn_sym_info array. */
131 /* The array of elfNN_ia64_dyn_sym_info. */
132 struct elfNN_ia64_dyn_sym_info
*info
;
135 struct elfNN_ia64_link_hash_table
137 /* The main hash table. */
138 struct elf_link_hash_table root
;
140 asection
*fptr_sec
; /* Function descriptor table (or NULL). */
141 asection
*rel_fptr_sec
; /* Dynamic relocation section for same. */
142 asection
*pltoff_sec
; /* Private descriptors for plt (or NULL). */
143 asection
*rel_pltoff_sec
; /* Dynamic relocation section for same. */
145 bfd_size_type minplt_entries
; /* Number of minplt entries. */
146 unsigned self_dtpmod_done
: 1;/* Has self DTPMOD entry been finished? */
147 bfd_vma self_dtpmod_offset
; /* .got offset to self DTPMOD entry. */
148 /* There are maybe R_IA64_GPREL22 relocations, including those
149 optimized from R_IA64_LTOFF22X, against non-SHF_IA_64_SHORT
150 sections. We need to record those sections so that we can choose
151 a proper GP to cover all R_IA64_GPREL22 relocations. */
152 asection
*max_short_sec
; /* Maximum short output section. */
153 bfd_vma max_short_offset
; /* Maximum short offset. */
154 asection
*min_short_sec
; /* Minimum short output section. */
155 bfd_vma min_short_offset
; /* Minimum short offset. */
157 htab_t loc_hash_table
;
158 void *loc_hash_memory
;
161 struct elfNN_ia64_allocate_data
163 struct bfd_link_info
*info
;
165 bfd_boolean only_got
;
168 #define elfNN_ia64_hash_table(p) \
169 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
170 == IA64_ELF_DATA ? ((struct elfNN_ia64_link_hash_table *) ((p)->hash)) : NULL)
172 static struct elfNN_ia64_dyn_sym_info
* get_dyn_sym_info
173 (struct elfNN_ia64_link_hash_table
*ia64_info
,
174 struct elf_link_hash_entry
*h
,
175 bfd
*abfd
, const Elf_Internal_Rela
*rel
, bfd_boolean create
);
176 static bfd_boolean elfNN_ia64_dynamic_symbol_p
177 (struct elf_link_hash_entry
*h
, struct bfd_link_info
*info
, int);
178 static bfd_boolean elfNN_ia64_choose_gp
179 (bfd
*abfd
, struct bfd_link_info
*info
, bfd_boolean final
);
180 static void elfNN_ia64_dyn_sym_traverse
181 (struct elfNN_ia64_link_hash_table
*ia64_info
,
182 bfd_boolean (*func
) (struct elfNN_ia64_dyn_sym_info
*, void *),
184 static bfd_boolean allocate_global_data_got
185 (struct elfNN_ia64_dyn_sym_info
*dyn_i
, void * data
);
186 static bfd_boolean allocate_global_fptr_got
187 (struct elfNN_ia64_dyn_sym_info
*dyn_i
, void * data
);
188 static bfd_boolean allocate_local_got
189 (struct elfNN_ia64_dyn_sym_info
*dyn_i
, void * data
);
190 static bfd_boolean elfNN_ia64_hpux_vec
191 (const bfd_target
*vec
);
192 static bfd_boolean allocate_dynrel_entries
193 (struct elfNN_ia64_dyn_sym_info
*dyn_i
, void * data
);
194 static asection
*get_pltoff
195 (bfd
*abfd
, struct bfd_link_info
*info
,
196 struct elfNN_ia64_link_hash_table
*ia64_info
);
198 /* ia64-specific relocation. */
200 /* Given a ELF reloc, return the matching HOWTO structure. */
203 elfNN_ia64_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
205 Elf_Internal_Rela
*elf_reloc
)
207 unsigned int r_type
= ELF32_R_TYPE (elf_reloc
->r_info
);
209 bfd_reloc
->howto
= ia64_elf_lookup_howto (r_type
);
210 if (bfd_reloc
->howto
== NULL
)
212 /* xgettext:c-format */
213 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
215 bfd_set_error (bfd_error_bad_value
);
222 #define PLT_HEADER_SIZE (3 * 16)
223 #define PLT_MIN_ENTRY_SIZE (1 * 16)
224 #define PLT_FULL_ENTRY_SIZE (2 * 16)
225 #define PLT_RESERVED_WORDS 3
227 static const bfd_byte plt_header
[PLT_HEADER_SIZE
] =
229 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
230 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
231 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
232 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
233 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
234 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
235 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
236 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
237 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
240 static const bfd_byte plt_min_entry
[PLT_MIN_ENTRY_SIZE
] =
242 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
243 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
244 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
247 static const bfd_byte plt_full_entry
[PLT_FULL_ENTRY_SIZE
] =
249 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
250 0x00, 0x41, 0x3c, 0x70, 0x29, 0xc0, /* ld8.acq r16=[r15],8*/
251 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
252 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
253 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
254 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
257 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
259 static const bfd_byte oor_brl
[16] =
261 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
262 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
263 0x00, 0x00, 0x00, 0xc0
266 static const bfd_byte oor_ip
[48] =
268 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
269 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
270 0x01, 0x00, 0x00, 0x60,
271 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
272 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
273 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
274 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
275 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
276 0x60, 0x00, 0x80, 0x00 /* br b6;; */
279 static size_t oor_branch_size
= sizeof (oor_brl
);
282 bfd_elfNN_ia64_after_parse (int itanium
)
284 oor_branch_size
= itanium
? sizeof (oor_ip
) : sizeof (oor_brl
);
288 /* Rename some of the generic section flags to better document how they
290 #define skip_relax_pass_0 sec_flg0
291 #define skip_relax_pass_1 sec_flg1
293 /* These functions do relaxation for IA-64 ELF. */
296 elfNN_ia64_update_short_info (asection
*sec
, bfd_vma offset
,
297 struct elfNN_ia64_link_hash_table
*ia64_info
)
299 /* Skip ABS and SHF_IA_64_SHORT sections. */
300 if (sec
== bfd_abs_section_ptr
301 || (sec
->flags
& SEC_SMALL_DATA
) != 0)
304 if (!ia64_info
->min_short_sec
)
306 ia64_info
->max_short_sec
= sec
;
307 ia64_info
->max_short_offset
= offset
;
308 ia64_info
->min_short_sec
= sec
;
309 ia64_info
->min_short_offset
= offset
;
311 else if (sec
== ia64_info
->max_short_sec
312 && offset
> ia64_info
->max_short_offset
)
313 ia64_info
->max_short_offset
= offset
;
314 else if (sec
== ia64_info
->min_short_sec
315 && offset
< ia64_info
->min_short_offset
)
316 ia64_info
->min_short_offset
= offset
;
317 else if (sec
->output_section
->vma
318 > ia64_info
->max_short_sec
->vma
)
320 ia64_info
->max_short_sec
= sec
;
321 ia64_info
->max_short_offset
= offset
;
323 else if (sec
->output_section
->vma
324 < ia64_info
->min_short_sec
->vma
)
326 ia64_info
->min_short_sec
= sec
;
327 ia64_info
->min_short_offset
= offset
;
332 elfNN_ia64_relax_section (bfd
*abfd
, asection
*sec
,
333 struct bfd_link_info
*link_info
,
338 struct one_fixup
*next
;
344 Elf_Internal_Shdr
*symtab_hdr
;
345 Elf_Internal_Rela
*internal_relocs
;
346 Elf_Internal_Rela
*irel
, *irelend
;
348 Elf_Internal_Sym
*isymbuf
= NULL
;
349 struct elfNN_ia64_link_hash_table
*ia64_info
;
350 struct one_fixup
*fixups
= NULL
;
351 bfd_boolean changed_contents
= FALSE
;
352 bfd_boolean changed_relocs
= FALSE
;
353 bfd_boolean changed_got
= FALSE
;
354 bfd_boolean skip_relax_pass_0
= TRUE
;
355 bfd_boolean skip_relax_pass_1
= TRUE
;
358 /* Assume we're not going to change any sizes, and we'll only need
362 if (bfd_link_relocatable (link_info
))
363 (*link_info
->callbacks
->einfo
)
364 (_("%P%F: --relax and -r may not be used together\n"));
366 /* Don't even try to relax for non-ELF outputs. */
367 if (!is_elf_hash_table (link_info
->hash
))
370 /* Nothing to do if there are no relocations or there is no need for
372 if ((sec
->flags
& SEC_RELOC
) == 0
373 || sec
->reloc_count
== 0
374 || (link_info
->relax_pass
== 0 && sec
->skip_relax_pass_0
)
375 || (link_info
->relax_pass
== 1 && sec
->skip_relax_pass_1
))
378 ia64_info
= elfNN_ia64_hash_table (link_info
);
379 if (ia64_info
== NULL
)
382 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
384 /* Load the relocations for this section. */
385 internal_relocs
= (_bfd_elf_link_read_relocs
386 (abfd
, sec
, NULL
, (Elf_Internal_Rela
*) NULL
,
387 link_info
->keep_memory
));
388 if (internal_relocs
== NULL
)
391 irelend
= internal_relocs
+ sec
->reloc_count
;
393 /* Get the section contents. */
394 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
395 contents
= elf_section_data (sec
)->this_hdr
.contents
;
398 if (!bfd_malloc_and_get_section (abfd
, sec
, &contents
))
402 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
404 unsigned long r_type
= ELFNN_R_TYPE (irel
->r_info
);
405 bfd_vma symaddr
, reladdr
, trampoff
, toff
, roff
;
409 bfd_boolean is_branch
;
410 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
415 case R_IA64_PCREL21B
:
416 case R_IA64_PCREL21BI
:
417 case R_IA64_PCREL21M
:
418 case R_IA64_PCREL21F
:
419 /* In pass 1, all br relaxations are done. We can skip it. */
420 if (link_info
->relax_pass
== 1)
422 skip_relax_pass_0
= FALSE
;
426 case R_IA64_PCREL60B
:
427 /* We can't optimize brl to br in pass 0 since br relaxations
428 will increase the code size. Defer it to pass 1. */
429 if (link_info
->relax_pass
== 0)
431 skip_relax_pass_1
= FALSE
;
438 /* Update max_short_sec/min_short_sec. */
440 case R_IA64_LTOFF22X
:
442 /* We can't relax ldx/mov in pass 0 since br relaxations will
443 increase the code size. Defer it to pass 1. */
444 if (link_info
->relax_pass
== 0)
446 skip_relax_pass_1
= FALSE
;
456 /* Get the value of the symbol referred to by the reloc. */
457 if (ELFNN_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
459 /* A local symbol. */
460 Elf_Internal_Sym
*isym
;
462 /* Read this BFD's local symbols. */
465 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
467 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
468 symtab_hdr
->sh_info
, 0,
474 isym
= isymbuf
+ ELFNN_R_SYM (irel
->r_info
);
475 if (isym
->st_shndx
== SHN_UNDEF
)
476 continue; /* We can't do anything with undefined symbols. */
477 else if (isym
->st_shndx
== SHN_ABS
)
478 tsec
= bfd_abs_section_ptr
;
479 else if (isym
->st_shndx
== SHN_COMMON
)
480 tsec
= bfd_com_section_ptr
;
481 else if (isym
->st_shndx
== SHN_IA_64_ANSI_COMMON
)
482 tsec
= bfd_com_section_ptr
;
484 tsec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
486 toff
= isym
->st_value
;
487 dyn_i
= get_dyn_sym_info (ia64_info
, NULL
, abfd
, irel
, FALSE
);
488 symtype
= ELF_ST_TYPE (isym
->st_info
);
493 struct elf_link_hash_entry
*h
;
495 indx
= ELFNN_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
496 h
= elf_sym_hashes (abfd
)[indx
];
497 BFD_ASSERT (h
!= NULL
);
499 while (h
->root
.type
== bfd_link_hash_indirect
500 || h
->root
.type
== bfd_link_hash_warning
)
501 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
503 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, irel
, FALSE
);
505 /* For branches to dynamic symbols, we're interested instead
506 in a branch to the PLT entry. */
507 if (is_branch
&& dyn_i
&& dyn_i
->want_plt2
)
509 /* Internal branches shouldn't be sent to the PLT.
510 Leave this for now and we'll give an error later. */
511 if (r_type
!= R_IA64_PCREL21B
)
514 tsec
= ia64_info
->root
.splt
;
515 toff
= dyn_i
->plt2_offset
;
516 BFD_ASSERT (irel
->r_addend
== 0);
519 /* Can't do anything else with dynamic symbols. */
520 else if (elfNN_ia64_dynamic_symbol_p (h
, link_info
, r_type
))
525 /* We can't do anything with undefined symbols. */
526 if (h
->root
.type
== bfd_link_hash_undefined
527 || h
->root
.type
== bfd_link_hash_undefweak
)
530 tsec
= h
->root
.u
.def
.section
;
531 toff
= h
->root
.u
.def
.value
;
537 if (tsec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
539 /* At this stage in linking, no SEC_MERGE symbol has been
540 adjusted, so all references to such symbols need to be
541 passed through _bfd_merged_section_offset. (Later, in
542 relocate_section, all SEC_MERGE symbols *except* for
543 section symbols have been adjusted.)
545 gas may reduce relocations against symbols in SEC_MERGE
546 sections to a relocation against the section symbol when
547 the original addend was zero. When the reloc is against
548 a section symbol we should include the addend in the
549 offset passed to _bfd_merged_section_offset, since the
550 location of interest is the original symbol. On the
551 other hand, an access to "sym+addend" where "sym" is not
552 a section symbol should not include the addend; Such an
553 access is presumed to be an offset from "sym"; The
554 location of interest is just "sym". */
555 if (symtype
== STT_SECTION
)
556 toff
+= irel
->r_addend
;
558 toff
= _bfd_merged_section_offset (abfd
, &tsec
,
559 elf_section_data (tsec
)->sec_info
,
562 if (symtype
!= STT_SECTION
)
563 toff
+= irel
->r_addend
;
566 toff
+= irel
->r_addend
;
568 symaddr
= tsec
->output_section
->vma
+ tsec
->output_offset
+ toff
;
570 roff
= irel
->r_offset
;
574 bfd_signed_vma offset
;
576 reladdr
= (sec
->output_section
->vma
578 + roff
) & (bfd_vma
) -4;
580 /* The .plt section is aligned at 32byte and the .text section
581 is aligned at 64byte. The .text section is right after the
582 .plt section. After the first relaxation pass, linker may
583 increase the gap between the .plt and .text sections up
584 to 32byte. We assume linker will always insert 32byte
585 between the .plt and .text sections after the first
587 if (tsec
== ia64_info
->root
.splt
)
588 offset
= -0x1000000 + 32;
592 /* If the branch is in range, no need to do anything. */
593 if ((bfd_signed_vma
) (symaddr
- reladdr
) >= offset
594 && (bfd_signed_vma
) (symaddr
- reladdr
) <= 0x0FFFFF0)
596 /* If the 60-bit branch is in 21-bit range, optimize it. */
597 if (r_type
== R_IA64_PCREL60B
)
599 ia64_elf_relax_brl (contents
, roff
);
602 = ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
605 /* If the original relocation offset points to slot
606 1, change it to slot 2. */
607 if ((irel
->r_offset
& 3) == 1)
610 changed_contents
= TRUE
;
611 changed_relocs
= TRUE
;
616 else if (r_type
== R_IA64_PCREL60B
)
618 else if (ia64_elf_relax_br (contents
, roff
))
621 = ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
624 /* Make the relocation offset point to slot 1. */
625 irel
->r_offset
= (irel
->r_offset
& ~((bfd_vma
) 0x3)) + 1;
627 changed_contents
= TRUE
;
628 changed_relocs
= TRUE
;
632 /* We can't put a trampoline in a .init/.fini section. Issue
634 if (strcmp (sec
->output_section
->name
, ".init") == 0
635 || strcmp (sec
->output_section
->name
, ".fini") == 0)
638 /* xgettext:c-format */
639 (_("%pB: can't relax br at %#" PRIx64
" in section `%pA';"
640 " please use brl or indirect branch"),
641 sec
->owner
, (uint64_t) roff
, sec
);
642 bfd_set_error (bfd_error_bad_value
);
646 /* If the branch and target are in the same section, you've
647 got one honking big section and we can't help you unless
648 you are branching backwards. You'll get an error message
650 if (tsec
== sec
&& toff
> roff
)
653 /* Look for an existing fixup to this address. */
654 for (f
= fixups
; f
; f
= f
->next
)
655 if (f
->tsec
== tsec
&& f
->toff
== toff
)
660 /* Two alternatives: If it's a branch to a PLT entry, we can
661 make a copy of the FULL_PLT entry. Otherwise, we'll have
662 to use a `brl' insn to get where we're going. */
666 if (tsec
== ia64_info
->root
.splt
)
667 size
= sizeof (plt_full_entry
);
669 size
= oor_branch_size
;
671 /* Resize the current section to make room for the new branch. */
672 trampoff
= (sec
->size
+ 15) & (bfd_vma
) -16;
674 /* If trampoline is out of range, there is nothing we
676 offset
= trampoff
- (roff
& (bfd_vma
) -4);
677 if (offset
< -0x1000000 || offset
> 0x0FFFFF0)
680 amt
= trampoff
+ size
;
681 contents
= (bfd_byte
*) bfd_realloc (contents
, amt
);
682 if (contents
== NULL
)
686 if (tsec
== ia64_info
->root
.splt
)
688 memcpy (contents
+ trampoff
, plt_full_entry
, size
);
690 /* Hijack the old relocation for use as the PLTOFF reloc. */
691 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
693 irel
->r_offset
= trampoff
;
697 if (size
== sizeof (oor_ip
))
699 memcpy (contents
+ trampoff
, oor_ip
, size
);
700 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
702 irel
->r_addend
-= 16;
703 irel
->r_offset
= trampoff
+ 2;
707 memcpy (contents
+ trampoff
, oor_brl
, size
);
708 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
710 irel
->r_offset
= trampoff
+ 2;
715 /* Record the fixup so we don't do it again this section. */
716 f
= (struct one_fixup
*)
717 bfd_malloc ((bfd_size_type
) sizeof (*f
));
721 f
->trampoff
= trampoff
;
726 /* If trampoline is out of range, there is nothing we
728 offset
= f
->trampoff
- (roff
& (bfd_vma
) -4);
729 if (offset
< -0x1000000 || offset
> 0x0FFFFF0)
732 /* Nop out the reloc, since we're finalizing things here. */
733 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
736 /* Fix up the existing branch to hit the trampoline. */
737 if (ia64_elf_install_value (contents
+ roff
, offset
, r_type
)
741 changed_contents
= TRUE
;
742 changed_relocs
= TRUE
;
749 bfd
*obfd
= sec
->output_section
->owner
;
750 gp
= _bfd_get_gp_value (obfd
);
753 if (!elfNN_ia64_choose_gp (obfd
, link_info
, FALSE
))
755 gp
= _bfd_get_gp_value (obfd
);
759 /* If the data is out of range, do nothing. */
760 if ((bfd_signed_vma
) (symaddr
- gp
) >= 0x200000
761 ||(bfd_signed_vma
) (symaddr
- gp
) < -0x200000)
764 if (r_type
== R_IA64_GPREL22
)
765 elfNN_ia64_update_short_info (tsec
->output_section
,
766 tsec
->output_offset
+ toff
,
768 else if (r_type
== R_IA64_LTOFF22X
)
770 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
772 changed_relocs
= TRUE
;
773 if (dyn_i
->want_gotx
)
775 dyn_i
->want_gotx
= 0;
776 changed_got
|= !dyn_i
->want_got
;
779 elfNN_ia64_update_short_info (tsec
->output_section
,
780 tsec
->output_offset
+ toff
,
785 ia64_elf_relax_ldxmov (contents
, roff
);
786 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
787 changed_contents
= TRUE
;
788 changed_relocs
= TRUE
;
793 /* ??? If we created fixups, this may push the code segment large
794 enough that the data segment moves, which will change the GP.
795 Reset the GP so that we re-calculate next round. We need to
796 do this at the _beginning_ of the next round; now will not do. */
798 /* Clean up and go home. */
801 struct one_fixup
*f
= fixups
;
802 fixups
= fixups
->next
;
807 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
809 if (! link_info
->keep_memory
)
813 /* Cache the symbols for elf_link_input_bfd. */
814 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
819 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
821 if (!changed_contents
&& !link_info
->keep_memory
)
825 /* Cache the section contents for elf_link_input_bfd. */
826 elf_section_data (sec
)->this_hdr
.contents
= contents
;
830 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
833 free (internal_relocs
);
835 elf_section_data (sec
)->relocs
= internal_relocs
;
840 struct elfNN_ia64_allocate_data data
;
841 data
.info
= link_info
;
843 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
845 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
846 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
847 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
848 ia64_info
->root
.sgot
->size
= data
.ofs
;
850 if (ia64_info
->root
.dynamic_sections_created
851 && ia64_info
->root
.srelgot
!= NULL
)
853 /* Resize .rela.got. */
854 ia64_info
->root
.srelgot
->size
= 0;
855 if (bfd_link_pic (link_info
)
856 && ia64_info
->self_dtpmod_offset
!= (bfd_vma
) -1)
857 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
858 data
.only_got
= TRUE
;
859 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_dynrel_entries
,
864 if (link_info
->relax_pass
== 0)
866 /* Pass 0 is only needed to relax br. */
867 sec
->skip_relax_pass_0
= skip_relax_pass_0
;
868 sec
->skip_relax_pass_1
= skip_relax_pass_1
;
871 *again
= changed_contents
|| changed_relocs
;
875 if ((unsigned char *) isymbuf
!= symtab_hdr
->contents
)
877 if (elf_section_data (sec
)->this_hdr
.contents
!= contents
)
879 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
880 free (internal_relocs
);
883 #undef skip_relax_pass_0
884 #undef skip_relax_pass_1
886 /* Return TRUE if NAME is an unwind table section name. */
888 static inline bfd_boolean
889 is_unwind_section_name (bfd
*abfd
, const char *name
)
891 if (elfNN_ia64_hpux_vec (abfd
->xvec
)
892 && !strcmp (name
, ELF_STRING_ia64_unwind_hdr
))
895 return ((CONST_STRNEQ (name
, ELF_STRING_ia64_unwind
)
896 && ! CONST_STRNEQ (name
, ELF_STRING_ia64_unwind_info
))
897 || CONST_STRNEQ (name
, ELF_STRING_ia64_unwind_once
));
900 /* Handle an IA-64 specific section when reading an object file. This
901 is called when bfd_section_from_shdr finds a section with an unknown
905 elfNN_ia64_section_from_shdr (bfd
*abfd
,
906 Elf_Internal_Shdr
*hdr
,
910 /* There ought to be a place to keep ELF backend specific flags, but
911 at the moment there isn't one. We just keep track of the
912 sections by their name, instead. Fortunately, the ABI gives
913 suggested names for all the MIPS specific sections, so we will
914 probably get away with this. */
915 switch (hdr
->sh_type
)
917 case SHT_IA_64_UNWIND
:
918 case SHT_IA_64_HP_OPT_ANOT
:
922 if (strcmp (name
, ELF_STRING_ia64_archext
) != 0)
930 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
, shindex
))
936 /* Convert IA-64 specific section flags to bfd internal section flags. */
938 /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
942 elfNN_ia64_section_flags (const Elf_Internal_Shdr
*hdr
)
944 if (hdr
->sh_flags
& SHF_IA_64_SHORT
)
945 hdr
->bfd_section
->flags
|= SEC_SMALL_DATA
;
950 /* Set the correct type for an IA-64 ELF section. We do this by the
951 section name, which is a hack, but ought to work. */
954 elfNN_ia64_fake_sections (bfd
*abfd
, Elf_Internal_Shdr
*hdr
,
959 name
= bfd_section_name (sec
);
961 if (is_unwind_section_name (abfd
, name
))
963 /* We don't have the sections numbered at this point, so sh_info
964 is set later, in elfNN_ia64_final_write_processing. */
965 hdr
->sh_type
= SHT_IA_64_UNWIND
;
966 hdr
->sh_flags
|= SHF_LINK_ORDER
;
968 else if (strcmp (name
, ELF_STRING_ia64_archext
) == 0)
969 hdr
->sh_type
= SHT_IA_64_EXT
;
970 else if (strcmp (name
, ".HP.opt_annot") == 0)
971 hdr
->sh_type
= SHT_IA_64_HP_OPT_ANOT
;
972 else if (strcmp (name
, ".reloc") == 0)
973 /* This is an ugly, but unfortunately necessary hack that is
974 needed when producing EFI binaries on IA-64. It tells
975 elf.c:elf_fake_sections() not to consider ".reloc" as a section
976 containing ELF relocation info. We need this hack in order to
977 be able to generate ELF binaries that can be translated into
978 EFI applications (which are essentially COFF objects). Those
979 files contain a COFF ".reloc" section inside an ELFNN object,
980 which would normally cause BFD to segfault because it would
981 attempt to interpret this section as containing relocation
982 entries for section "oc". With this hack enabled, ".reloc"
983 will be treated as a normal data section, which will avoid the
984 segfault. However, you won't be able to create an ELFNN binary
985 with a section named "oc" that needs relocations, but that's
986 the kind of ugly side-effects you get when detecting section
987 types based on their names... In practice, this limitation is
989 hdr
->sh_type
= SHT_PROGBITS
;
991 if (sec
->flags
& SEC_SMALL_DATA
)
992 hdr
->sh_flags
|= SHF_IA_64_SHORT
;
994 /* Some HP linkers look for the SHF_IA_64_HP_TLS flag instead of SHF_TLS. */
996 if (elfNN_ia64_hpux_vec (abfd
->xvec
) && (sec
->flags
& SHF_TLS
))
997 hdr
->sh_flags
|= SHF_IA_64_HP_TLS
;
1002 /* The final processing done just before writing out an IA-64 ELF
1006 elfNN_ia64_final_write_processing (bfd
*abfd
)
1008 Elf_Internal_Shdr
*hdr
;
1011 for (s
= abfd
->sections
; s
; s
= s
->next
)
1013 hdr
= &elf_section_data (s
)->this_hdr
;
1014 switch (hdr
->sh_type
)
1016 case SHT_IA_64_UNWIND
:
1017 /* The IA-64 processor-specific ABI requires setting sh_link
1018 to the unwind section, whereas HP-UX requires sh_info to
1019 do so. For maximum compatibility, we'll set both for
1021 hdr
->sh_info
= hdr
->sh_link
;
1026 if (! elf_flags_init (abfd
))
1028 unsigned long flags
= 0;
1030 if (abfd
->xvec
->byteorder
== BFD_ENDIAN_BIG
)
1031 flags
|= EF_IA_64_BE
;
1032 if (bfd_get_mach (abfd
) == bfd_mach_ia64_elf64
)
1033 flags
|= EF_IA_64_ABI64
;
1035 elf_elfheader(abfd
)->e_flags
= flags
;
1036 elf_flags_init (abfd
) = TRUE
;
1038 return _bfd_elf_final_write_processing (abfd
);
1041 /* Hook called by the linker routine which adds symbols from an object
1042 file. We use it to put .comm items in .sbss, and not .bss. */
1045 elfNN_ia64_add_symbol_hook (bfd
*abfd
,
1046 struct bfd_link_info
*info
,
1047 Elf_Internal_Sym
*sym
,
1048 const char **namep ATTRIBUTE_UNUSED
,
1049 flagword
*flagsp ATTRIBUTE_UNUSED
,
1053 if (sym
->st_shndx
== SHN_COMMON
1054 && !bfd_link_relocatable (info
)
1055 && sym
->st_size
<= elf_gp_size (abfd
))
1057 /* Common symbols less than or equal to -G nn bytes are
1058 automatically put into .sbss. */
1060 asection
*scomm
= bfd_get_section_by_name (abfd
, ".scommon");
1064 scomm
= bfd_make_section_with_flags (abfd
, ".scommon",
1067 | SEC_LINKER_CREATED
));
1073 *valp
= sym
->st_size
;
1079 /* Return the number of additional phdrs we will need. */
1082 elfNN_ia64_additional_program_headers (bfd
*abfd
,
1083 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
1088 /* See if we need a PT_IA_64_ARCHEXT segment. */
1089 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1090 if (s
&& (s
->flags
& SEC_LOAD
))
1093 /* Count how many PT_IA_64_UNWIND segments we need. */
1094 for (s
= abfd
->sections
; s
; s
= s
->next
)
1095 if (is_unwind_section_name (abfd
, s
->name
) && (s
->flags
& SEC_LOAD
))
1102 elfNN_ia64_modify_segment_map (bfd
*abfd
,
1103 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
1105 struct elf_segment_map
*m
, **pm
;
1106 Elf_Internal_Shdr
*hdr
;
1109 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1110 all PT_LOAD segments. */
1111 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1112 if (s
&& (s
->flags
& SEC_LOAD
))
1114 for (m
= elf_seg_map (abfd
); m
!= NULL
; m
= m
->next
)
1115 if (m
->p_type
== PT_IA_64_ARCHEXT
)
1119 m
= ((struct elf_segment_map
*)
1120 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1124 m
->p_type
= PT_IA_64_ARCHEXT
;
1128 /* We want to put it after the PHDR and INTERP segments. */
1129 pm
= &elf_seg_map (abfd
);
1131 && ((*pm
)->p_type
== PT_PHDR
1132 || (*pm
)->p_type
== PT_INTERP
))
1140 /* Install PT_IA_64_UNWIND segments, if needed. */
1141 for (s
= abfd
->sections
; s
; s
= s
->next
)
1143 hdr
= &elf_section_data (s
)->this_hdr
;
1144 if (hdr
->sh_type
!= SHT_IA_64_UNWIND
)
1147 if (s
&& (s
->flags
& SEC_LOAD
))
1149 for (m
= elf_seg_map (abfd
); m
!= NULL
; m
= m
->next
)
1150 if (m
->p_type
== PT_IA_64_UNWIND
)
1154 /* Look through all sections in the unwind segment
1155 for a match since there may be multiple sections
1157 for (i
= m
->count
- 1; i
>= 0; --i
)
1158 if (m
->sections
[i
] == s
)
1167 m
= ((struct elf_segment_map
*)
1168 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1172 m
->p_type
= PT_IA_64_UNWIND
;
1177 /* We want to put it last. */
1178 pm
= &elf_seg_map (abfd
);
1189 /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1190 the input sections for each output section in the segment and testing
1191 for SHF_IA_64_NORECOV on each. */
1194 elfNN_ia64_modify_headers (bfd
*abfd
, struct bfd_link_info
*info
)
1196 struct elf_obj_tdata
*tdata
= elf_tdata (abfd
);
1197 struct elf_segment_map
*m
;
1198 Elf_Internal_Phdr
*p
;
1200 for (p
= tdata
->phdr
, m
= elf_seg_map (abfd
); m
!= NULL
; m
= m
->next
, p
++)
1201 if (m
->p_type
== PT_LOAD
)
1204 for (i
= m
->count
- 1; i
>= 0; --i
)
1206 struct bfd_link_order
*order
= m
->sections
[i
]->map_head
.link_order
;
1208 while (order
!= NULL
)
1210 if (order
->type
== bfd_indirect_link_order
)
1212 asection
*is
= order
->u
.indirect
.section
;
1213 bfd_vma flags
= elf_section_data(is
)->this_hdr
.sh_flags
;
1214 if (flags
& SHF_IA_64_NORECOV
)
1216 p
->p_flags
|= PF_IA_64_NORECOV
;
1220 order
= order
->next
;
1226 return _bfd_elf_modify_headers (abfd
, info
);
1229 /* According to the Tahoe assembler spec, all labels starting with a
1233 elfNN_ia64_is_local_label_name (bfd
*abfd ATTRIBUTE_UNUSED
,
1236 return name
[0] == '.';
1239 /* Should we do dynamic things to this symbol? */
1242 elfNN_ia64_dynamic_symbol_p (struct elf_link_hash_entry
*h
,
1243 struct bfd_link_info
*info
, int r_type
)
1245 bfd_boolean ignore_protected
1246 = ((r_type
& 0xf8) == 0x40 /* FPTR relocs */
1247 || (r_type
& 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1249 return _bfd_elf_dynamic_symbol_p (h
, info
, ignore_protected
);
1252 static struct bfd_hash_entry
*
1253 elfNN_ia64_new_elf_hash_entry (struct bfd_hash_entry
*entry
,
1254 struct bfd_hash_table
*table
,
1257 struct elfNN_ia64_link_hash_entry
*ret
;
1258 ret
= (struct elfNN_ia64_link_hash_entry
*) entry
;
1260 /* Allocate the structure if it has not already been allocated by a
1263 ret
= bfd_hash_allocate (table
, sizeof (*ret
));
1268 /* Call the allocation method of the superclass. */
1269 ret
= ((struct elfNN_ia64_link_hash_entry
*)
1270 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
1275 ret
->sorted_count
= 0;
1277 return (struct bfd_hash_entry
*) ret
;
1281 elfNN_ia64_hash_copy_indirect (struct bfd_link_info
*info
,
1282 struct elf_link_hash_entry
*xdir
,
1283 struct elf_link_hash_entry
*xind
)
1285 struct elfNN_ia64_link_hash_entry
*dir
, *ind
;
1287 dir
= (struct elfNN_ia64_link_hash_entry
*) xdir
;
1288 ind
= (struct elfNN_ia64_link_hash_entry
*) xind
;
1290 /* Copy down any references that we may have already seen to the
1291 symbol which just became indirect. */
1293 if (dir
->root
.versioned
!= versioned_hidden
)
1294 dir
->root
.ref_dynamic
|= ind
->root
.ref_dynamic
;
1295 dir
->root
.ref_regular
|= ind
->root
.ref_regular
;
1296 dir
->root
.ref_regular_nonweak
|= ind
->root
.ref_regular_nonweak
;
1297 dir
->root
.needs_plt
|= ind
->root
.needs_plt
;
1299 if (ind
->root
.root
.type
!= bfd_link_hash_indirect
)
1302 /* Copy over the got and plt data. This would have been done
1305 if (ind
->info
!= NULL
)
1307 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1312 dir
->info
= ind
->info
;
1313 dir
->count
= ind
->count
;
1314 dir
->sorted_count
= ind
->sorted_count
;
1315 dir
->size
= ind
->size
;
1319 ind
->sorted_count
= 0;
1322 /* Fix up the dyn_sym_info pointers to the global symbol. */
1323 for (count
= dir
->count
, dyn_i
= dir
->info
;
1326 dyn_i
->h
= &dir
->root
;
1329 /* Copy over the dynindx. */
1331 if (ind
->root
.dynindx
!= -1)
1333 if (dir
->root
.dynindx
!= -1)
1334 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
1335 dir
->root
.dynstr_index
);
1336 dir
->root
.dynindx
= ind
->root
.dynindx
;
1337 dir
->root
.dynstr_index
= ind
->root
.dynstr_index
;
1338 ind
->root
.dynindx
= -1;
1339 ind
->root
.dynstr_index
= 0;
1344 elfNN_ia64_hash_hide_symbol (struct bfd_link_info
*info
,
1345 struct elf_link_hash_entry
*xh
,
1346 bfd_boolean force_local
)
1348 struct elfNN_ia64_link_hash_entry
*h
;
1349 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1352 h
= (struct elfNN_ia64_link_hash_entry
*)xh
;
1354 _bfd_elf_link_hash_hide_symbol (info
, &h
->root
, force_local
);
1356 for (count
= h
->count
, dyn_i
= h
->info
;
1360 dyn_i
->want_plt2
= 0;
1361 dyn_i
->want_plt
= 0;
1365 /* Compute a hash of a local hash entry. */
1368 elfNN_ia64_local_htab_hash (const void *ptr
)
1370 struct elfNN_ia64_local_hash_entry
*entry
1371 = (struct elfNN_ia64_local_hash_entry
*) ptr
;
1373 return ELF_LOCAL_SYMBOL_HASH (entry
->id
, entry
->r_sym
);
1376 /* Compare local hash entries. */
1379 elfNN_ia64_local_htab_eq (const void *ptr1
, const void *ptr2
)
1381 struct elfNN_ia64_local_hash_entry
*entry1
1382 = (struct elfNN_ia64_local_hash_entry
*) ptr1
;
1383 struct elfNN_ia64_local_hash_entry
*entry2
1384 = (struct elfNN_ia64_local_hash_entry
*) ptr2
;
1386 return entry1
->id
== entry2
->id
&& entry1
->r_sym
== entry2
->r_sym
;
1389 /* Free the global elfNN_ia64_dyn_sym_info array. */
1392 elfNN_ia64_global_dyn_info_free (void **xentry
,
1393 void * unused ATTRIBUTE_UNUSED
)
1395 struct elfNN_ia64_link_hash_entry
*entry
1396 = (struct elfNN_ia64_link_hash_entry
*) xentry
;
1401 entry
->sorted_count
= 0;
1407 /* Free the local elfNN_ia64_dyn_sym_info array. */
1410 elfNN_ia64_local_dyn_info_free (void **slot
,
1411 void * unused ATTRIBUTE_UNUSED
)
1413 struct elfNN_ia64_local_hash_entry
*entry
1414 = (struct elfNN_ia64_local_hash_entry
*) *slot
;
1419 entry
->sorted_count
= 0;
1425 /* Destroy IA-64 linker hash table. */
1428 elfNN_ia64_link_hash_table_free (bfd
*obfd
)
1430 struct elfNN_ia64_link_hash_table
*ia64_info
1431 = (struct elfNN_ia64_link_hash_table
*) obfd
->link
.hash
;
1432 if (ia64_info
->loc_hash_table
)
1434 htab_traverse (ia64_info
->loc_hash_table
,
1435 elfNN_ia64_local_dyn_info_free
, NULL
);
1436 htab_delete (ia64_info
->loc_hash_table
);
1438 if (ia64_info
->loc_hash_memory
)
1439 objalloc_free ((struct objalloc
*) ia64_info
->loc_hash_memory
);
1440 elf_link_hash_traverse (&ia64_info
->root
,
1441 elfNN_ia64_global_dyn_info_free
, NULL
);
1442 _bfd_elf_link_hash_table_free (obfd
);
1445 /* Create the derived linker hash table. The IA-64 ELF port uses this
1446 derived hash table to keep information specific to the IA-64 ElF
1447 linker (without using static variables). */
1449 static struct bfd_link_hash_table
*
1450 elfNN_ia64_hash_table_create (bfd
*abfd
)
1452 struct elfNN_ia64_link_hash_table
*ret
;
1454 ret
= bfd_zmalloc ((bfd_size_type
) sizeof (*ret
));
1458 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
1459 elfNN_ia64_new_elf_hash_entry
,
1460 sizeof (struct elfNN_ia64_link_hash_entry
),
1467 ret
->loc_hash_table
= htab_try_create (1024, elfNN_ia64_local_htab_hash
,
1468 elfNN_ia64_local_htab_eq
, NULL
);
1469 ret
->loc_hash_memory
= objalloc_create ();
1470 if (!ret
->loc_hash_table
|| !ret
->loc_hash_memory
)
1472 elfNN_ia64_link_hash_table_free (abfd
);
1475 ret
->root
.root
.hash_table_free
= elfNN_ia64_link_hash_table_free
;
1476 ret
->root
.dt_pltgot_required
= TRUE
;
1478 return &ret
->root
.root
;
1481 /* Traverse both local and global hash tables. */
1483 struct elfNN_ia64_dyn_sym_traverse_data
1485 bfd_boolean (*func
) (struct elfNN_ia64_dyn_sym_info
*, void *);
1490 elfNN_ia64_global_dyn_sym_thunk (struct bfd_hash_entry
*xentry
,
1493 struct elfNN_ia64_link_hash_entry
*entry
1494 = (struct elfNN_ia64_link_hash_entry
*) xentry
;
1495 struct elfNN_ia64_dyn_sym_traverse_data
*data
1496 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1497 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1500 for (count
= entry
->count
, dyn_i
= entry
->info
;
1503 if (! (*data
->func
) (dyn_i
, data
->data
))
1509 elfNN_ia64_local_dyn_sym_thunk (void **slot
, void * xdata
)
1511 struct elfNN_ia64_local_hash_entry
*entry
1512 = (struct elfNN_ia64_local_hash_entry
*) *slot
;
1513 struct elfNN_ia64_dyn_sym_traverse_data
*data
1514 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1515 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1518 for (count
= entry
->count
, dyn_i
= entry
->info
;
1521 if (! (*data
->func
) (dyn_i
, data
->data
))
1527 elfNN_ia64_dyn_sym_traverse (struct elfNN_ia64_link_hash_table
*ia64_info
,
1528 bfd_boolean (*func
) (struct elfNN_ia64_dyn_sym_info
*, void *),
1531 struct elfNN_ia64_dyn_sym_traverse_data xdata
;
1536 elf_link_hash_traverse (&ia64_info
->root
,
1537 elfNN_ia64_global_dyn_sym_thunk
, &xdata
);
1538 htab_traverse (ia64_info
->loc_hash_table
,
1539 elfNN_ia64_local_dyn_sym_thunk
, &xdata
);
1543 elfNN_ia64_create_dynamic_sections (bfd
*abfd
,
1544 struct bfd_link_info
*info
)
1546 struct elfNN_ia64_link_hash_table
*ia64_info
;
1549 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
1552 ia64_info
= elfNN_ia64_hash_table (info
);
1553 if (ia64_info
== NULL
)
1557 flagword flags
= bfd_section_flags (ia64_info
->root
.sgot
);
1558 bfd_set_section_flags (ia64_info
->root
.sgot
, SEC_SMALL_DATA
| flags
);
1559 /* The .got section is always aligned at 8 bytes. */
1560 if (!bfd_set_section_alignment (ia64_info
->root
.sgot
, 3))
1564 if (!get_pltoff (abfd
, info
, ia64_info
))
1567 s
= bfd_make_section_anyway_with_flags (abfd
, ".rela.IA_64.pltoff",
1568 (SEC_ALLOC
| SEC_LOAD
1571 | SEC_LINKER_CREATED
1574 || !bfd_set_section_alignment (s
, LOG_SECTION_ALIGN
))
1576 ia64_info
->rel_pltoff_sec
= s
;
1581 /* Find and/or create a hash entry for local symbol. */
1582 static struct elfNN_ia64_local_hash_entry
*
1583 get_local_sym_hash (struct elfNN_ia64_link_hash_table
*ia64_info
,
1584 bfd
*abfd
, const Elf_Internal_Rela
*rel
,
1587 struct elfNN_ia64_local_hash_entry e
, *ret
;
1588 asection
*sec
= abfd
->sections
;
1589 hashval_t h
= ELF_LOCAL_SYMBOL_HASH (sec
->id
,
1590 ELFNN_R_SYM (rel
->r_info
));
1594 e
.r_sym
= ELFNN_R_SYM (rel
->r_info
);
1595 slot
= htab_find_slot_with_hash (ia64_info
->loc_hash_table
, &e
, h
,
1596 create
? INSERT
: NO_INSERT
);
1602 return (struct elfNN_ia64_local_hash_entry
*) *slot
;
1604 ret
= (struct elfNN_ia64_local_hash_entry
*)
1605 objalloc_alloc ((struct objalloc
*) ia64_info
->loc_hash_memory
,
1606 sizeof (struct elfNN_ia64_local_hash_entry
));
1609 memset (ret
, 0, sizeof (*ret
));
1611 ret
->r_sym
= ELFNN_R_SYM (rel
->r_info
);
1617 /* Used to sort elfNN_ia64_dyn_sym_info array. */
1620 addend_compare (const void *xp
, const void *yp
)
1622 const struct elfNN_ia64_dyn_sym_info
*x
1623 = (const struct elfNN_ia64_dyn_sym_info
*) xp
;
1624 const struct elfNN_ia64_dyn_sym_info
*y
1625 = (const struct elfNN_ia64_dyn_sym_info
*) yp
;
1627 return x
->addend
< y
->addend
? -1 : x
->addend
> y
->addend
? 1 : 0;
1630 /* Sort elfNN_ia64_dyn_sym_info array and remove duplicates. */
1633 sort_dyn_sym_info (struct elfNN_ia64_dyn_sym_info
*info
,
1636 bfd_vma curr
, prev
, got_offset
;
1637 unsigned int i
, kept
, dupes
, diff
, dest
, src
, len
;
1639 qsort (info
, count
, sizeof (*info
), addend_compare
);
1641 /* Find the first duplicate. */
1642 prev
= info
[0].addend
;
1643 got_offset
= info
[0].got_offset
;
1644 for (i
= 1; i
< count
; i
++)
1646 curr
= info
[i
].addend
;
1649 /* For duplicates, make sure that GOT_OFFSET is valid. */
1650 if (got_offset
== (bfd_vma
) -1)
1651 got_offset
= info
[i
].got_offset
;
1654 got_offset
= info
[i
].got_offset
;
1658 /* We may move a block of elements to here. */
1661 /* Remove duplicates. */
1666 /* For duplicates, make sure that the kept one has a valid
1669 if (got_offset
!= (bfd_vma
) -1)
1670 info
[kept
].got_offset
= got_offset
;
1672 curr
= info
[i
].addend
;
1673 got_offset
= info
[i
].got_offset
;
1675 /* Move a block of elements whose first one is different from
1679 for (src
= i
+ 1; src
< count
; src
++)
1681 if (info
[src
].addend
!= curr
)
1683 /* For duplicates, make sure that GOT_OFFSET is
1685 if (got_offset
== (bfd_vma
) -1)
1686 got_offset
= info
[src
].got_offset
;
1689 /* Make sure that the kept one has a valid got_offset. */
1690 if (got_offset
!= (bfd_vma
) -1)
1691 info
[kept
].got_offset
= got_offset
;
1699 /* Find the next duplicate. SRC will be kept. */
1700 prev
= info
[src
].addend
;
1701 got_offset
= info
[src
].got_offset
;
1702 for (dupes
= src
+ 1; dupes
< count
; dupes
++)
1704 curr
= info
[dupes
].addend
;
1707 /* Make sure that got_offset is valid. */
1708 if (got_offset
== (bfd_vma
) -1)
1709 got_offset
= info
[dupes
].got_offset
;
1711 /* For duplicates, make sure that the kept one has
1712 a valid got_offset. */
1713 if (got_offset
!= (bfd_vma
) -1)
1714 info
[dupes
- 1].got_offset
= got_offset
;
1717 got_offset
= info
[dupes
].got_offset
;
1721 /* How much to move. */
1725 if (len
== 1 && dupes
< count
)
1727 /* If we only move 1 element, we combine it with the next
1728 one. There must be at least a duplicate. Find the
1729 next different one. */
1730 for (diff
= dupes
+ 1, src
++; diff
< count
; diff
++, src
++)
1732 if (info
[diff
].addend
!= curr
)
1734 /* Make sure that got_offset is valid. */
1735 if (got_offset
== (bfd_vma
) -1)
1736 got_offset
= info
[diff
].got_offset
;
1739 /* Makre sure that the last duplicated one has an valid
1741 BFD_ASSERT (curr
== prev
);
1742 if (got_offset
!= (bfd_vma
) -1)
1743 info
[diff
- 1].got_offset
= got_offset
;
1747 /* Find the next duplicate. Track the current valid
1749 prev
= info
[diff
].addend
;
1750 got_offset
= info
[diff
].got_offset
;
1751 for (dupes
= diff
+ 1; dupes
< count
; dupes
++)
1753 curr
= info
[dupes
].addend
;
1756 /* For duplicates, make sure that GOT_OFFSET
1758 if (got_offset
== (bfd_vma
) -1)
1759 got_offset
= info
[dupes
].got_offset
;
1762 got_offset
= info
[dupes
].got_offset
;
1767 len
= diff
- src
+ 1;
1772 memmove (&info
[dest
], &info
[src
], len
* sizeof (*info
));
1781 /* When we get here, either there is no duplicate at all or
1782 the only duplicate is the last element. */
1785 /* If the last element is a duplicate, make sure that the
1786 kept one has a valid got_offset. We also update count. */
1787 if (got_offset
!= (bfd_vma
) -1)
1788 info
[dest
- 1].got_offset
= got_offset
;
1796 /* Find and/or create a descriptor for dynamic symbol info. This will
1797 vary based on global or local symbol, and the addend to the reloc.
1799 We don't sort when inserting. Also, we sort and eliminate
1800 duplicates if there is an unsorted section. Typically, this will
1801 only happen once, because we do all insertions before lookups. We
1802 then use bsearch to do a lookup. This also allows lookups to be
1803 fast. So we have fast insertion (O(log N) due to duplicate check),
1804 fast lookup (O(log N)) and one sort (O(N log N) expected time).
1805 Previously, all lookups were O(N) because of the use of the linked
1806 list and also all insertions were O(N) because of the check for
1807 duplicates. There are some complications here because the array
1808 size grows occasionally, which may add an O(N) factor, but this
1809 should be rare. Also, we free the excess array allocation, which
1810 requires a copy which is O(N), but this only happens once. */
1812 static struct elfNN_ia64_dyn_sym_info
*
1813 get_dyn_sym_info (struct elfNN_ia64_link_hash_table
*ia64_info
,
1814 struct elf_link_hash_entry
*h
, bfd
*abfd
,
1815 const Elf_Internal_Rela
*rel
, bfd_boolean create
)
1817 struct elfNN_ia64_dyn_sym_info
**info_p
, *info
, *dyn_i
, key
;
1818 unsigned int *count_p
, *sorted_count_p
, *size_p
;
1819 unsigned int count
, sorted_count
, size
;
1820 bfd_vma addend
= rel
? rel
->r_addend
: 0;
1825 struct elfNN_ia64_link_hash_entry
*global_h
;
1827 global_h
= (struct elfNN_ia64_link_hash_entry
*) h
;
1828 info_p
= &global_h
->info
;
1829 count_p
= &global_h
->count
;
1830 sorted_count_p
= &global_h
->sorted_count
;
1831 size_p
= &global_h
->size
;
1835 struct elfNN_ia64_local_hash_entry
*loc_h
;
1837 loc_h
= get_local_sym_hash (ia64_info
, abfd
, rel
, create
);
1840 BFD_ASSERT (!create
);
1844 info_p
= &loc_h
->info
;
1845 count_p
= &loc_h
->count
;
1846 sorted_count_p
= &loc_h
->sorted_count
;
1847 size_p
= &loc_h
->size
;
1851 sorted_count
= *sorted_count_p
;
1856 /* When we create the array, we don't check for duplicates,
1857 except in the previously sorted section if one exists, and
1858 against the last inserted entry. This allows insertions to
1864 /* Try bsearch first on the sorted section. */
1865 key
.addend
= addend
;
1866 dyn_i
= bsearch (&key
, info
, sorted_count
,
1867 sizeof (*info
), addend_compare
);
1875 /* Do a quick check for the last inserted entry. */
1876 dyn_i
= info
+ count
- 1;
1877 if (dyn_i
->addend
== addend
)
1885 /* It is the very first element. We create the array of size
1888 amt
= size
* sizeof (*info
);
1889 info
= bfd_malloc (amt
);
1891 else if (size
<= count
)
1893 /* We double the array size every time when we reach the
1896 amt
= size
* sizeof (*info
);
1897 info
= bfd_realloc (info
, amt
);
1908 /* Append the new one to the array. */
1909 dyn_i
= info
+ count
;
1910 memset (dyn_i
, 0, sizeof (*dyn_i
));
1911 dyn_i
->got_offset
= (bfd_vma
) -1;
1912 dyn_i
->addend
= addend
;
1914 /* We increment count only since the new ones are unsorted and
1915 may have duplicate. */
1920 /* It is a lookup without insertion. Sort array if part of the
1921 array isn't sorted. */
1922 if (count
!= sorted_count
)
1924 count
= sort_dyn_sym_info (info
, count
);
1926 *sorted_count_p
= count
;
1929 /* Free unused memory. */
1932 amt
= count
* sizeof (*info
);
1933 info
= bfd_malloc (amt
);
1936 memcpy (info
, *info_p
, amt
);
1943 key
.addend
= addend
;
1944 dyn_i
= bsearch (&key
, info
, count
,
1945 sizeof (*info
), addend_compare
);
1952 get_got (bfd
*abfd
, struct bfd_link_info
*info
,
1953 struct elfNN_ia64_link_hash_table
*ia64_info
)
1958 got
= ia64_info
->root
.sgot
;
1963 dynobj
= ia64_info
->root
.dynobj
;
1965 ia64_info
->root
.dynobj
= dynobj
= abfd
;
1966 if (!_bfd_elf_create_got_section (dynobj
, info
))
1969 got
= ia64_info
->root
.sgot
;
1971 /* The .got section is always aligned at 8 bytes. */
1972 if (!bfd_set_section_alignment (got
, 3))
1975 flags
= bfd_section_flags (got
);
1976 if (!bfd_set_section_flags (got
, SEC_SMALL_DATA
| flags
))
1983 /* Create function descriptor section (.opd). This section is called .opd
1984 because it contains "official procedure descriptors". The "official"
1985 refers to the fact that these descriptors are used when taking the address
1986 of a procedure, thus ensuring a unique address for each procedure. */
1989 get_fptr (bfd
*abfd
, struct bfd_link_info
*info
,
1990 struct elfNN_ia64_link_hash_table
*ia64_info
)
1995 fptr
= ia64_info
->fptr_sec
;
1998 dynobj
= ia64_info
->root
.dynobj
;
2000 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2002 fptr
= bfd_make_section_anyway_with_flags (dynobj
, ".opd",
2007 | (bfd_link_pie (info
)
2009 | SEC_LINKER_CREATED
));
2011 || !bfd_set_section_alignment (fptr
, 4))
2017 ia64_info
->fptr_sec
= fptr
;
2019 if (bfd_link_pie (info
))
2022 fptr_rel
= bfd_make_section_anyway_with_flags (dynobj
, ".rela.opd",
2023 (SEC_ALLOC
| SEC_LOAD
2026 | SEC_LINKER_CREATED
2028 if (fptr_rel
== NULL
2029 || !bfd_set_section_alignment (fptr_rel
, LOG_SECTION_ALIGN
))
2035 ia64_info
->rel_fptr_sec
= fptr_rel
;
2043 get_pltoff (bfd
*abfd
, struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2044 struct elfNN_ia64_link_hash_table
*ia64_info
)
2049 pltoff
= ia64_info
->pltoff_sec
;
2052 dynobj
= ia64_info
->root
.dynobj
;
2054 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2056 pltoff
= bfd_make_section_anyway_with_flags (dynobj
,
2057 ELF_STRING_ia64_pltoff
,
2063 | SEC_LINKER_CREATED
));
2065 || !bfd_set_section_alignment (pltoff
, 4))
2071 ia64_info
->pltoff_sec
= pltoff
;
2078 get_reloc_section (bfd
*abfd
,
2079 struct elfNN_ia64_link_hash_table
*ia64_info
,
2080 asection
*sec
, bfd_boolean create
)
2082 const char *srel_name
;
2086 srel_name
= (bfd_elf_string_from_elf_section
2087 (abfd
, elf_elfheader(abfd
)->e_shstrndx
,
2088 _bfd_elf_single_rel_hdr (sec
)->sh_name
));
2089 if (srel_name
== NULL
)
2092 dynobj
= ia64_info
->root
.dynobj
;
2094 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2096 srel
= bfd_get_linker_section (dynobj
, srel_name
);
2097 if (srel
== NULL
&& create
)
2099 srel
= bfd_make_section_anyway_with_flags (dynobj
, srel_name
,
2100 (SEC_ALLOC
| SEC_LOAD
2103 | SEC_LINKER_CREATED
2106 || !bfd_set_section_alignment (srel
, LOG_SECTION_ALIGN
))
2114 count_dyn_reloc (bfd
*abfd
, struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2115 asection
*srel
, int type
, bfd_boolean reltext
)
2117 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2119 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2120 if (rent
->srel
== srel
&& rent
->type
== type
)
2125 rent
= ((struct elfNN_ia64_dyn_reloc_entry
*)
2126 bfd_alloc (abfd
, (bfd_size_type
) sizeof (*rent
)));
2130 rent
->next
= dyn_i
->reloc_entries
;
2134 dyn_i
->reloc_entries
= rent
;
2136 rent
->reltext
= reltext
;
2143 elfNN_ia64_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
2145 const Elf_Internal_Rela
*relocs
)
2147 struct elfNN_ia64_link_hash_table
*ia64_info
;
2148 const Elf_Internal_Rela
*relend
;
2149 Elf_Internal_Shdr
*symtab_hdr
;
2150 const Elf_Internal_Rela
*rel
;
2151 asection
*got
, *fptr
, *srel
, *pltoff
;
2160 NEED_LTOFF_FPTR
= 128,
2166 struct elf_link_hash_entry
*h
;
2167 unsigned long r_symndx
;
2168 bfd_boolean maybe_dynamic
;
2170 if (bfd_link_relocatable (info
))
2173 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
2174 ia64_info
= elfNN_ia64_hash_table (info
);
2175 if (ia64_info
== NULL
)
2178 got
= fptr
= srel
= pltoff
= NULL
;
2180 relend
= relocs
+ sec
->reloc_count
;
2182 /* We scan relocations first to create dynamic relocation arrays. We
2183 modified get_dyn_sym_info to allow fast insertion and support fast
2184 lookup in the next loop. */
2185 for (rel
= relocs
; rel
< relend
; ++rel
)
2187 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
2188 if (r_symndx
>= symtab_hdr
->sh_info
)
2190 long indx
= r_symndx
- symtab_hdr
->sh_info
;
2191 h
= elf_sym_hashes (abfd
)[indx
];
2192 while (h
->root
.type
== bfd_link_hash_indirect
2193 || h
->root
.type
== bfd_link_hash_warning
)
2194 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2199 if (h
&& UNDEFWEAK_NO_DYNAMIC_RELOC (info
, h
))
2202 /* We can only get preliminary data on whether a symbol is
2203 locally or externally defined, as not all of the input files
2204 have yet been processed. Do something with what we know, as
2205 this may help reduce memory usage and processing time later. */
2206 maybe_dynamic
= (h
&& ((!bfd_link_executable (info
)
2207 && (!SYMBOLIC_BIND (info
, h
)
2208 || info
->unresolved_syms_in_shared_libs
== RM_IGNORE
))
2210 || h
->root
.type
== bfd_link_hash_defweak
));
2213 switch (ELFNN_R_TYPE (rel
->r_info
))
2215 case R_IA64_TPREL64MSB
:
2216 case R_IA64_TPREL64LSB
:
2217 if (bfd_link_pic (info
) || maybe_dynamic
)
2218 need_entry
= NEED_DYNREL
;
2221 case R_IA64_LTOFF_TPREL22
:
2222 need_entry
= NEED_TPREL
;
2223 if (bfd_link_pic (info
))
2224 info
->flags
|= DF_STATIC_TLS
;
2227 case R_IA64_DTPREL32MSB
:
2228 case R_IA64_DTPREL32LSB
:
2229 case R_IA64_DTPREL64MSB
:
2230 case R_IA64_DTPREL64LSB
:
2231 if (bfd_link_pic (info
) || maybe_dynamic
)
2232 need_entry
= NEED_DYNREL
;
2235 case R_IA64_LTOFF_DTPREL22
:
2236 need_entry
= NEED_DTPREL
;
2239 case R_IA64_DTPMOD64MSB
:
2240 case R_IA64_DTPMOD64LSB
:
2241 if (bfd_link_pic (info
) || maybe_dynamic
)
2242 need_entry
= NEED_DYNREL
;
2245 case R_IA64_LTOFF_DTPMOD22
:
2246 need_entry
= NEED_DTPMOD
;
2249 case R_IA64_LTOFF_FPTR22
:
2250 case R_IA64_LTOFF_FPTR64I
:
2251 case R_IA64_LTOFF_FPTR32MSB
:
2252 case R_IA64_LTOFF_FPTR32LSB
:
2253 case R_IA64_LTOFF_FPTR64MSB
:
2254 case R_IA64_LTOFF_FPTR64LSB
:
2255 need_entry
= NEED_FPTR
| NEED_GOT
| NEED_LTOFF_FPTR
;
2258 case R_IA64_FPTR64I
:
2259 case R_IA64_FPTR32MSB
:
2260 case R_IA64_FPTR32LSB
:
2261 case R_IA64_FPTR64MSB
:
2262 case R_IA64_FPTR64LSB
:
2263 if (bfd_link_pic (info
) || h
)
2264 need_entry
= NEED_FPTR
| NEED_DYNREL
;
2266 need_entry
= NEED_FPTR
;
2269 case R_IA64_LTOFF22
:
2270 case R_IA64_LTOFF64I
:
2271 need_entry
= NEED_GOT
;
2274 case R_IA64_LTOFF22X
:
2275 need_entry
= NEED_GOTX
;
2278 case R_IA64_PLTOFF22
:
2279 case R_IA64_PLTOFF64I
:
2280 case R_IA64_PLTOFF64MSB
:
2281 case R_IA64_PLTOFF64LSB
:
2282 need_entry
= NEED_PLTOFF
;
2286 need_entry
|= NEED_MIN_PLT
;
2290 (*info
->callbacks
->warning
)
2291 (info
, _("@pltoff reloc against local symbol"), 0,
2292 abfd
, 0, (bfd_vma
) 0);
2296 case R_IA64_PCREL21B
:
2297 case R_IA64_PCREL60B
:
2298 /* Depending on where this symbol is defined, we may or may not
2299 need a full plt entry. Only skip if we know we'll not need
2300 the entry -- static or symbolic, and the symbol definition
2301 has already been seen. */
2302 if (maybe_dynamic
&& rel
->r_addend
== 0)
2303 need_entry
= NEED_FULL_PLT
;
2309 case R_IA64_DIR32MSB
:
2310 case R_IA64_DIR32LSB
:
2311 case R_IA64_DIR64MSB
:
2312 case R_IA64_DIR64LSB
:
2313 /* Shared objects will always need at least a REL relocation. */
2314 if (bfd_link_pic (info
) || maybe_dynamic
)
2315 need_entry
= NEED_DYNREL
;
2318 case R_IA64_IPLTMSB
:
2319 case R_IA64_IPLTLSB
:
2320 /* Shared objects will always need at least a REL relocation. */
2321 if (bfd_link_pic (info
) || maybe_dynamic
)
2322 need_entry
= NEED_DYNREL
;
2325 case R_IA64_PCREL22
:
2326 case R_IA64_PCREL64I
:
2327 case R_IA64_PCREL32MSB
:
2328 case R_IA64_PCREL32LSB
:
2329 case R_IA64_PCREL64MSB
:
2330 case R_IA64_PCREL64LSB
:
2332 need_entry
= NEED_DYNREL
;
2339 if ((need_entry
& NEED_FPTR
) != 0
2342 (*info
->callbacks
->warning
)
2343 (info
, _("non-zero addend in @fptr reloc"), 0,
2344 abfd
, 0, (bfd_vma
) 0);
2347 if (get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, TRUE
) == NULL
)
2351 /* Now, we only do lookup without insertion, which is very fast
2352 with the modified get_dyn_sym_info. */
2353 for (rel
= relocs
; rel
< relend
; ++rel
)
2355 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2356 int dynrel_type
= R_IA64_NONE
;
2358 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
2359 if (r_symndx
>= symtab_hdr
->sh_info
)
2361 /* We're dealing with a global symbol -- find its hash entry
2362 and mark it as being referenced. */
2363 long indx
= r_symndx
- symtab_hdr
->sh_info
;
2364 h
= elf_sym_hashes (abfd
)[indx
];
2365 while (h
->root
.type
== bfd_link_hash_indirect
2366 || h
->root
.type
== bfd_link_hash_warning
)
2367 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2369 /* PR15323, ref flags aren't set for references in the same
2376 if (h
&& UNDEFWEAK_NO_DYNAMIC_RELOC (info
, h
))
2379 /* We can only get preliminary data on whether a symbol is
2380 locally or externally defined, as not all of the input files
2381 have yet been processed. Do something with what we know, as
2382 this may help reduce memory usage and processing time later. */
2383 maybe_dynamic
= (h
&& ((!bfd_link_executable (info
)
2384 && (!SYMBOLIC_BIND (info
, h
)
2385 || info
->unresolved_syms_in_shared_libs
== RM_IGNORE
))
2387 || h
->root
.type
== bfd_link_hash_defweak
));
2390 switch (ELFNN_R_TYPE (rel
->r_info
))
2392 case R_IA64_TPREL64MSB
:
2393 case R_IA64_TPREL64LSB
:
2394 if (bfd_link_pic (info
) || maybe_dynamic
)
2395 need_entry
= NEED_DYNREL
;
2396 dynrel_type
= R_IA64_TPREL64LSB
;
2397 if (bfd_link_pic (info
))
2398 info
->flags
|= DF_STATIC_TLS
;
2401 case R_IA64_LTOFF_TPREL22
:
2402 need_entry
= NEED_TPREL
;
2403 if (bfd_link_pic (info
))
2404 info
->flags
|= DF_STATIC_TLS
;
2407 case R_IA64_DTPREL32MSB
:
2408 case R_IA64_DTPREL32LSB
:
2409 case R_IA64_DTPREL64MSB
:
2410 case R_IA64_DTPREL64LSB
:
2411 if (bfd_link_pic (info
) || maybe_dynamic
)
2412 need_entry
= NEED_DYNREL
;
2413 dynrel_type
= R_IA64_DTPRELNNLSB
;
2416 case R_IA64_LTOFF_DTPREL22
:
2417 need_entry
= NEED_DTPREL
;
2420 case R_IA64_DTPMOD64MSB
:
2421 case R_IA64_DTPMOD64LSB
:
2422 if (bfd_link_pic (info
) || maybe_dynamic
)
2423 need_entry
= NEED_DYNREL
;
2424 dynrel_type
= R_IA64_DTPMOD64LSB
;
2427 case R_IA64_LTOFF_DTPMOD22
:
2428 need_entry
= NEED_DTPMOD
;
2431 case R_IA64_LTOFF_FPTR22
:
2432 case R_IA64_LTOFF_FPTR64I
:
2433 case R_IA64_LTOFF_FPTR32MSB
:
2434 case R_IA64_LTOFF_FPTR32LSB
:
2435 case R_IA64_LTOFF_FPTR64MSB
:
2436 case R_IA64_LTOFF_FPTR64LSB
:
2437 need_entry
= NEED_FPTR
| NEED_GOT
| NEED_LTOFF_FPTR
;
2440 case R_IA64_FPTR64I
:
2441 case R_IA64_FPTR32MSB
:
2442 case R_IA64_FPTR32LSB
:
2443 case R_IA64_FPTR64MSB
:
2444 case R_IA64_FPTR64LSB
:
2445 if (bfd_link_pic (info
) || h
)
2446 need_entry
= NEED_FPTR
| NEED_DYNREL
;
2448 need_entry
= NEED_FPTR
;
2449 dynrel_type
= R_IA64_FPTRNNLSB
;
2452 case R_IA64_LTOFF22
:
2453 case R_IA64_LTOFF64I
:
2454 need_entry
= NEED_GOT
;
2457 case R_IA64_LTOFF22X
:
2458 need_entry
= NEED_GOTX
;
2461 case R_IA64_PLTOFF22
:
2462 case R_IA64_PLTOFF64I
:
2463 case R_IA64_PLTOFF64MSB
:
2464 case R_IA64_PLTOFF64LSB
:
2465 need_entry
= NEED_PLTOFF
;
2469 need_entry
|= NEED_MIN_PLT
;
2473 case R_IA64_PCREL21B
:
2474 case R_IA64_PCREL60B
:
2475 /* Depending on where this symbol is defined, we may or may not
2476 need a full plt entry. Only skip if we know we'll not need
2477 the entry -- static or symbolic, and the symbol definition
2478 has already been seen. */
2479 if (maybe_dynamic
&& rel
->r_addend
== 0)
2480 need_entry
= NEED_FULL_PLT
;
2486 case R_IA64_DIR32MSB
:
2487 case R_IA64_DIR32LSB
:
2488 case R_IA64_DIR64MSB
:
2489 case R_IA64_DIR64LSB
:
2490 /* Shared objects will always need at least a REL relocation. */
2491 if (bfd_link_pic (info
) || maybe_dynamic
)
2492 need_entry
= NEED_DYNREL
;
2493 dynrel_type
= R_IA64_DIRNNLSB
;
2496 case R_IA64_IPLTMSB
:
2497 case R_IA64_IPLTLSB
:
2498 /* Shared objects will always need at least a REL relocation. */
2499 if (bfd_link_pic (info
) || maybe_dynamic
)
2500 need_entry
= NEED_DYNREL
;
2501 dynrel_type
= R_IA64_IPLTLSB
;
2504 case R_IA64_PCREL22
:
2505 case R_IA64_PCREL64I
:
2506 case R_IA64_PCREL32MSB
:
2507 case R_IA64_PCREL32LSB
:
2508 case R_IA64_PCREL64MSB
:
2509 case R_IA64_PCREL64LSB
:
2511 need_entry
= NEED_DYNREL
;
2512 dynrel_type
= R_IA64_PCRELNNLSB
;
2519 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, FALSE
);
2521 /* Record whether or not this is a local symbol. */
2524 /* Create what's needed. */
2525 if (need_entry
& (NEED_GOT
| NEED_GOTX
| NEED_TPREL
2526 | NEED_DTPMOD
| NEED_DTPREL
))
2530 got
= get_got (abfd
, info
, ia64_info
);
2534 if (need_entry
& NEED_GOT
)
2535 dyn_i
->want_got
= 1;
2536 if (need_entry
& NEED_GOTX
)
2537 dyn_i
->want_gotx
= 1;
2538 if (need_entry
& NEED_TPREL
)
2539 dyn_i
->want_tprel
= 1;
2540 if (need_entry
& NEED_DTPMOD
)
2541 dyn_i
->want_dtpmod
= 1;
2542 if (need_entry
& NEED_DTPREL
)
2543 dyn_i
->want_dtprel
= 1;
2545 if (need_entry
& NEED_FPTR
)
2549 fptr
= get_fptr (abfd
, info
, ia64_info
);
2554 /* FPTRs for shared libraries are allocated by the dynamic
2555 linker. Make sure this local symbol will appear in the
2556 dynamic symbol table. */
2557 if (!h
&& bfd_link_pic (info
))
2559 if (! (bfd_elf_link_record_local_dynamic_symbol
2560 (info
, abfd
, (long) r_symndx
)))
2564 dyn_i
->want_fptr
= 1;
2566 if (need_entry
& NEED_LTOFF_FPTR
)
2567 dyn_i
->want_ltoff_fptr
= 1;
2568 if (need_entry
& (NEED_MIN_PLT
| NEED_FULL_PLT
))
2570 if (!ia64_info
->root
.dynobj
)
2571 ia64_info
->root
.dynobj
= abfd
;
2573 dyn_i
->want_plt
= 1;
2575 if (need_entry
& NEED_FULL_PLT
)
2576 dyn_i
->want_plt2
= 1;
2577 if (need_entry
& NEED_PLTOFF
)
2579 /* This is needed here, in case @pltoff is used in a non-shared
2583 pltoff
= get_pltoff (abfd
, info
, ia64_info
);
2588 dyn_i
->want_pltoff
= 1;
2590 if ((need_entry
& NEED_DYNREL
) && (sec
->flags
& SEC_ALLOC
))
2594 srel
= get_reloc_section (abfd
, ia64_info
, sec
, TRUE
);
2598 if (!count_dyn_reloc (abfd
, dyn_i
, srel
, dynrel_type
,
2599 (sec
->flags
& SEC_READONLY
) != 0))
2607 /* For cleanliness, and potentially faster dynamic loading, allocate
2608 external GOT entries first. */
2611 allocate_global_data_got (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2614 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2616 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2617 && ! dyn_i
->want_fptr
2618 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2620 dyn_i
->got_offset
= x
->ofs
;
2623 if (dyn_i
->want_tprel
)
2625 dyn_i
->tprel_offset
= x
->ofs
;
2628 if (dyn_i
->want_dtpmod
)
2630 if (elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2632 dyn_i
->dtpmod_offset
= x
->ofs
;
2637 struct elfNN_ia64_link_hash_table
*ia64_info
;
2639 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2640 if (ia64_info
== NULL
)
2643 if (ia64_info
->self_dtpmod_offset
== (bfd_vma
) -1)
2645 ia64_info
->self_dtpmod_offset
= x
->ofs
;
2648 dyn_i
->dtpmod_offset
= ia64_info
->self_dtpmod_offset
;
2651 if (dyn_i
->want_dtprel
)
2653 dyn_i
->dtprel_offset
= x
->ofs
;
2659 /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2662 allocate_global_fptr_got (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2665 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2669 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, R_IA64_FPTRNNLSB
))
2671 dyn_i
->got_offset
= x
->ofs
;
2677 /* Lastly, allocate all the GOT entries for local data. */
2680 allocate_local_got (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2683 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2685 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2686 && !elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2688 dyn_i
->got_offset
= x
->ofs
;
2694 /* Search for the index of a global symbol in it's defining object file. */
2697 global_sym_index (struct elf_link_hash_entry
*h
)
2699 struct elf_link_hash_entry
**p
;
2702 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
2703 || h
->root
.type
== bfd_link_hash_defweak
);
2705 obj
= h
->root
.u
.def
.section
->owner
;
2706 for (p
= elf_sym_hashes (obj
); *p
!= h
; ++p
)
2709 return p
- elf_sym_hashes (obj
) + elf_tdata (obj
)->symtab_hdr
.sh_info
;
2712 /* Allocate function descriptors. We can do these for every function
2713 in a main executable that is not exported. */
2716 allocate_fptr (struct elfNN_ia64_dyn_sym_info
*dyn_i
, void * data
)
2718 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2720 if (dyn_i
->want_fptr
)
2722 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2725 while (h
->root
.type
== bfd_link_hash_indirect
2726 || h
->root
.type
== bfd_link_hash_warning
)
2727 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2729 if (!bfd_link_executable (x
->info
)
2731 || (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2732 && !UNDEFWEAK_NO_DYNAMIC_RELOC (x
->info
, h
))
2733 || (h
->root
.type
!= bfd_link_hash_undefweak
2734 && h
->root
.type
!= bfd_link_hash_undefined
)))
2736 if (h
&& h
->dynindx
== -1)
2738 BFD_ASSERT ((h
->root
.type
== bfd_link_hash_defined
)
2739 || (h
->root
.type
== bfd_link_hash_defweak
));
2741 if (!bfd_elf_link_record_local_dynamic_symbol
2742 (x
->info
, h
->root
.u
.def
.section
->owner
,
2743 global_sym_index (h
)))
2747 dyn_i
->want_fptr
= 0;
2749 else if (h
== NULL
|| h
->dynindx
== -1)
2751 dyn_i
->fptr_offset
= x
->ofs
;
2755 dyn_i
->want_fptr
= 0;
2760 /* Allocate all the minimal PLT entries. */
2763 allocate_plt_entries (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2766 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2768 if (dyn_i
->want_plt
)
2770 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2773 while (h
->root
.type
== bfd_link_hash_indirect
2774 || h
->root
.type
== bfd_link_hash_warning
)
2775 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2777 /* ??? Versioned symbols seem to lose NEEDS_PLT. */
2778 if (elfNN_ia64_dynamic_symbol_p (h
, x
->info
, 0))
2780 bfd_size_type offset
= x
->ofs
;
2782 offset
= PLT_HEADER_SIZE
;
2783 dyn_i
->plt_offset
= offset
;
2784 x
->ofs
= offset
+ PLT_MIN_ENTRY_SIZE
;
2786 dyn_i
->want_pltoff
= 1;
2790 dyn_i
->want_plt
= 0;
2791 dyn_i
->want_plt2
= 0;
2797 /* Allocate all the full PLT entries. */
2800 allocate_plt2_entries (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2803 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2805 if (dyn_i
->want_plt2
)
2807 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2808 bfd_size_type ofs
= x
->ofs
;
2810 dyn_i
->plt2_offset
= ofs
;
2811 x
->ofs
= ofs
+ PLT_FULL_ENTRY_SIZE
;
2813 while (h
->root
.type
== bfd_link_hash_indirect
2814 || h
->root
.type
== bfd_link_hash_warning
)
2815 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2816 dyn_i
->h
->plt
.offset
= ofs
;
2821 /* Allocate all the PLTOFF entries requested by relocations and
2822 plt entries. We can't share space with allocated FPTR entries,
2823 because the latter are not necessarily addressable by the GP.
2824 ??? Relaxation might be able to determine that they are. */
2827 allocate_pltoff_entries (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2830 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2832 if (dyn_i
->want_pltoff
)
2834 dyn_i
->pltoff_offset
= x
->ofs
;
2840 /* Allocate dynamic relocations for those symbols that turned out
2844 allocate_dynrel_entries (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2847 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2848 struct elfNN_ia64_link_hash_table
*ia64_info
;
2849 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2850 bfd_boolean dynamic_symbol
, shared
, resolved_zero
;
2852 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2853 if (ia64_info
== NULL
)
2856 /* Note that this can't be used in relation to FPTR relocs below. */
2857 dynamic_symbol
= elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0);
2859 shared
= bfd_link_pic (x
->info
);
2860 resolved_zero
= (dyn_i
->h
2861 && UNDEFWEAK_NO_DYNAMIC_RELOC (x
->info
,
2864 /* Take care of the GOT and PLT relocations. */
2867 && (dynamic_symbol
|| shared
)
2868 && (dyn_i
->want_got
|| dyn_i
->want_gotx
))
2869 || (dyn_i
->want_ltoff_fptr
2871 && dyn_i
->h
->dynindx
!= -1))
2873 if (!dyn_i
->want_ltoff_fptr
2874 || !bfd_link_pie (x
->info
)
2876 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2877 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
2879 if ((dynamic_symbol
|| shared
) && dyn_i
->want_tprel
)
2880 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
2881 if (dynamic_symbol
&& dyn_i
->want_dtpmod
)
2882 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
2883 if (dynamic_symbol
&& dyn_i
->want_dtprel
)
2884 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
2889 if (ia64_info
->rel_fptr_sec
&& dyn_i
->want_fptr
)
2891 if (dyn_i
->h
== NULL
|| dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2892 ia64_info
->rel_fptr_sec
->size
+= sizeof (ElfNN_External_Rela
);
2895 if (!resolved_zero
&& dyn_i
->want_pltoff
)
2897 bfd_size_type t
= 0;
2899 /* Dynamic symbols get one IPLT relocation. Local symbols in
2900 shared libraries get two REL relocations. Local symbols in
2901 main applications get nothing. */
2903 t
= sizeof (ElfNN_External_Rela
);
2905 t
= 2 * sizeof (ElfNN_External_Rela
);
2907 ia64_info
->rel_pltoff_sec
->size
+= t
;
2910 /* Take care of the normal data relocations. */
2912 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2914 int count
= rent
->count
;
2918 case R_IA64_FPTR32LSB
:
2919 case R_IA64_FPTR64LSB
:
2920 /* Allocate one iff !want_fptr and not PIE, which by this point
2921 will be true only if we're actually allocating one statically
2922 in the main executable. Position independent executables
2923 need a relative reloc. */
2924 if (dyn_i
->want_fptr
&& !bfd_link_pie (x
->info
))
2927 case R_IA64_PCREL32LSB
:
2928 case R_IA64_PCREL64LSB
:
2929 if (!dynamic_symbol
)
2932 case R_IA64_DIR32LSB
:
2933 case R_IA64_DIR64LSB
:
2934 if (!dynamic_symbol
&& !shared
)
2937 case R_IA64_IPLTLSB
:
2938 if (!dynamic_symbol
&& !shared
)
2940 /* Use two REL relocations for IPLT relocations
2941 against local symbols. */
2942 if (!dynamic_symbol
)
2945 case R_IA64_DTPREL32LSB
:
2946 case R_IA64_TPREL64LSB
:
2947 case R_IA64_DTPREL64LSB
:
2948 case R_IA64_DTPMOD64LSB
:
2954 x
->info
->flags
|= DF_TEXTREL
;
2955 rent
->srel
->size
+= sizeof (ElfNN_External_Rela
) * count
;
2962 elfNN_ia64_adjust_dynamic_symbol (struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2963 struct elf_link_hash_entry
*h
)
2965 /* ??? Undefined symbols with PLT entries should be re-defined
2966 to be the PLT entry. */
2968 /* If this is a weak symbol, and there is a real definition, the
2969 processor independent code will have arranged for us to see the
2970 real definition first, and we can just use the same value. */
2971 if (h
->is_weakalias
)
2973 struct elf_link_hash_entry
*def
= weakdef (h
);
2974 BFD_ASSERT (def
->root
.type
== bfd_link_hash_defined
);
2975 h
->root
.u
.def
.section
= def
->root
.u
.def
.section
;
2976 h
->root
.u
.def
.value
= def
->root
.u
.def
.value
;
2980 /* If this is a reference to a symbol defined by a dynamic object which
2981 is not a function, we might allocate the symbol in our .dynbss section
2982 and allocate a COPY dynamic relocation.
2984 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
2991 elfNN_ia64_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2992 struct bfd_link_info
*info
)
2994 struct elfNN_ia64_allocate_data data
;
2995 struct elfNN_ia64_link_hash_table
*ia64_info
;
2999 ia64_info
= elfNN_ia64_hash_table (info
);
3000 if (ia64_info
== NULL
)
3002 dynobj
= ia64_info
->root
.dynobj
;
3003 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
3004 BFD_ASSERT(dynobj
!= NULL
);
3007 /* Set the contents of the .interp section to the interpreter. */
3008 if (ia64_info
->root
.dynamic_sections_created
3009 && bfd_link_executable (info
) && !info
->nointerp
)
3011 sec
= bfd_get_linker_section (dynobj
, ".interp");
3012 BFD_ASSERT (sec
!= NULL
);
3013 sec
->contents
= (bfd_byte
*) ELF_DYNAMIC_INTERPRETER
;
3014 sec
->size
= strlen (ELF_DYNAMIC_INTERPRETER
) + 1;
3017 /* Allocate the GOT entries. */
3019 if (ia64_info
->root
.sgot
)
3022 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
3023 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
3024 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
3025 ia64_info
->root
.sgot
->size
= data
.ofs
;
3028 /* Allocate the FPTR entries. */
3030 if (ia64_info
->fptr_sec
)
3033 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_fptr
, &data
);
3034 ia64_info
->fptr_sec
->size
= data
.ofs
;
3037 /* Now that we've seen all of the input files, we can decide which
3038 symbols need plt entries. Allocate the minimal PLT entries first.
3039 We do this even though dynamic_sections_created may be FALSE, because
3040 this has the side-effect of clearing want_plt and want_plt2. */
3043 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt_entries
, &data
);
3045 ia64_info
->minplt_entries
= 0;
3048 ia64_info
->minplt_entries
3049 = (data
.ofs
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
3052 /* Align the pointer for the plt2 entries. */
3053 data
.ofs
= (data
.ofs
+ 31) & (bfd_vma
) -32;
3055 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt2_entries
, &data
);
3056 if (data
.ofs
!= 0 || ia64_info
->root
.dynamic_sections_created
)
3058 /* FIXME: we always reserve the memory for dynamic linker even if
3059 there are no PLT entries since dynamic linker may assume the
3060 reserved memory always exists. */
3062 BFD_ASSERT (ia64_info
->root
.dynamic_sections_created
);
3064 ia64_info
->root
.splt
->size
= data
.ofs
;
3066 /* If we've got a .plt, we need some extra memory for the dynamic
3067 linker. We stuff these in .got.plt. */
3068 ia64_info
->root
.sgotplt
->size
= 8 * PLT_RESERVED_WORDS
;
3071 /* Allocate the PLTOFF entries. */
3073 if (ia64_info
->pltoff_sec
)
3076 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_pltoff_entries
, &data
);
3077 ia64_info
->pltoff_sec
->size
= data
.ofs
;
3080 if (ia64_info
->root
.dynamic_sections_created
)
3082 /* Allocate space for the dynamic relocations that turned out to be
3085 if (bfd_link_pic (info
) && ia64_info
->self_dtpmod_offset
!= (bfd_vma
) -1)
3086 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
3087 data
.only_got
= FALSE
;
3088 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_dynrel_entries
, &data
);
3091 /* We have now determined the sizes of the various dynamic sections.
3092 Allocate memory for them. */
3093 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
3097 if (!(sec
->flags
& SEC_LINKER_CREATED
))
3100 /* If we don't need this section, strip it from the output file.
3101 There were several sections primarily related to dynamic
3102 linking that must be create before the linker maps input
3103 sections to output sections. The linker does that before
3104 bfd_elf_size_dynamic_sections is called, and it is that
3105 function which decides whether anything needs to go into
3108 strip
= (sec
->size
== 0);
3110 if (sec
== ia64_info
->root
.sgot
)
3112 else if (sec
== ia64_info
->root
.srelgot
)
3115 ia64_info
->root
.srelgot
= NULL
;
3117 /* We use the reloc_count field as a counter if we need to
3118 copy relocs into the output file. */
3119 sec
->reloc_count
= 0;
3121 else if (sec
== ia64_info
->fptr_sec
)
3124 ia64_info
->fptr_sec
= NULL
;
3126 else if (sec
== ia64_info
->rel_fptr_sec
)
3129 ia64_info
->rel_fptr_sec
= NULL
;
3131 /* We use the reloc_count field as a counter if we need to
3132 copy relocs into the output file. */
3133 sec
->reloc_count
= 0;
3135 else if (sec
== ia64_info
->root
.splt
)
3138 ia64_info
->root
.splt
= NULL
;
3140 else if (sec
== ia64_info
->pltoff_sec
)
3143 ia64_info
->pltoff_sec
= NULL
;
3145 else if (sec
== ia64_info
->rel_pltoff_sec
)
3148 ia64_info
->rel_pltoff_sec
= NULL
;
3151 ia64_info
->root
.dt_jmprel_required
= TRUE
;
3152 /* We use the reloc_count field as a counter if we need to
3153 copy relocs into the output file. */
3154 sec
->reloc_count
= 0;
3161 /* It's OK to base decisions on the section name, because none
3162 of the dynobj section names depend upon the input files. */
3163 name
= bfd_section_name (sec
);
3165 if (strcmp (name
, ".got.plt") == 0)
3167 else if (CONST_STRNEQ (name
, ".rel"))
3171 /* We use the reloc_count field as a counter if we need to
3172 copy relocs into the output file. */
3173 sec
->reloc_count
= 0;
3181 sec
->flags
|= SEC_EXCLUDE
;
3184 /* Allocate memory for the section contents. */
3185 sec
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, sec
->size
);
3186 if (sec
->contents
== NULL
&& sec
->size
!= 0)
3191 if (ia64_info
->root
.dynamic_sections_created
)
3193 /* Add some entries to the .dynamic section. We fill in the values
3194 later (in finish_dynamic_sections) but we must add the entries now
3195 so that we get the correct size for the .dynamic section. */
3197 #define add_dynamic_entry(TAG, VAL) \
3198 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3200 if (!_bfd_elf_add_dynamic_tags (output_bfd
, info
, TRUE
))
3203 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE
, 0))
3207 /* ??? Perhaps force __gp local. */
3213 elfNN_ia64_install_dyn_reloc (bfd
*abfd
, struct bfd_link_info
*info
,
3214 asection
*sec
, asection
*srel
,
3215 bfd_vma offset
, unsigned int type
,
3216 long dynindx
, bfd_vma addend
)
3218 Elf_Internal_Rela outrel
;
3221 BFD_ASSERT (dynindx
!= -1);
3222 outrel
.r_info
= ELFNN_R_INFO (dynindx
, type
);
3223 outrel
.r_addend
= addend
;
3224 outrel
.r_offset
= _bfd_elf_section_offset (abfd
, info
, sec
, offset
);
3225 if (outrel
.r_offset
>= (bfd_vma
) -2)
3227 /* Run for the hills. We shouldn't be outputting a relocation
3228 for this. So do what everyone else does and output a no-op. */
3229 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
3230 outrel
.r_addend
= 0;
3231 outrel
.r_offset
= 0;
3234 outrel
.r_offset
+= sec
->output_section
->vma
+ sec
->output_offset
;
3236 loc
= srel
->contents
;
3237 loc
+= srel
->reloc_count
++ * sizeof (ElfNN_External_Rela
);
3238 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3239 BFD_ASSERT (sizeof (ElfNN_External_Rela
) * srel
->reloc_count
<= srel
->size
);
3242 /* Store an entry for target address TARGET_ADDR in the linkage table
3243 and return the gp-relative address of the linkage table entry. */
3246 set_got_entry (bfd
*abfd
, struct bfd_link_info
*info
,
3247 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
3248 long dynindx
, bfd_vma addend
, bfd_vma value
,
3249 unsigned int dyn_r_type
)
3251 struct elfNN_ia64_link_hash_table
*ia64_info
;
3256 ia64_info
= elfNN_ia64_hash_table (info
);
3257 if (ia64_info
== NULL
)
3260 got_sec
= ia64_info
->root
.sgot
;
3264 case R_IA64_TPREL64LSB
:
3265 done
= dyn_i
->tprel_done
;
3266 dyn_i
->tprel_done
= TRUE
;
3267 got_offset
= dyn_i
->tprel_offset
;
3269 case R_IA64_DTPMOD64LSB
:
3270 if (dyn_i
->dtpmod_offset
!= ia64_info
->self_dtpmod_offset
)
3272 done
= dyn_i
->dtpmod_done
;
3273 dyn_i
->dtpmod_done
= TRUE
;
3277 done
= ia64_info
->self_dtpmod_done
;
3278 ia64_info
->self_dtpmod_done
= TRUE
;
3281 got_offset
= dyn_i
->dtpmod_offset
;
3283 case R_IA64_DTPREL32LSB
:
3284 case R_IA64_DTPREL64LSB
:
3285 done
= dyn_i
->dtprel_done
;
3286 dyn_i
->dtprel_done
= TRUE
;
3287 got_offset
= dyn_i
->dtprel_offset
;
3290 done
= dyn_i
->got_done
;
3291 dyn_i
->got_done
= TRUE
;
3292 got_offset
= dyn_i
->got_offset
;
3296 BFD_ASSERT ((got_offset
& 7) == 0);
3300 /* Store the target address in the linkage table entry. */
3301 bfd_put_64 (abfd
, value
, got_sec
->contents
+ got_offset
);
3303 /* Install a dynamic relocation if needed. */
3304 if (((bfd_link_pic (info
)
3306 || (ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3307 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info
, dyn_i
->h
))
3308 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
3309 && dyn_r_type
!= R_IA64_DTPREL32LSB
3310 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3311 || elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, info
, dyn_r_type
)
3313 && (dyn_r_type
== R_IA64_FPTR32LSB
3314 || dyn_r_type
== R_IA64_FPTR64LSB
)))
3315 && (!dyn_i
->want_ltoff_fptr
3316 || !bfd_link_pie (info
)
3318 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3321 && dyn_r_type
!= R_IA64_TPREL64LSB
3322 && dyn_r_type
!= R_IA64_DTPMOD64LSB
3323 && dyn_r_type
!= R_IA64_DTPREL32LSB
3324 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3326 dyn_r_type
= R_IA64_RELNNLSB
;
3331 if (bfd_big_endian (abfd
))
3335 case R_IA64_REL32LSB
:
3336 dyn_r_type
= R_IA64_REL32MSB
;
3338 case R_IA64_DIR32LSB
:
3339 dyn_r_type
= R_IA64_DIR32MSB
;
3341 case R_IA64_FPTR32LSB
:
3342 dyn_r_type
= R_IA64_FPTR32MSB
;
3344 case R_IA64_DTPREL32LSB
:
3345 dyn_r_type
= R_IA64_DTPREL32MSB
;
3347 case R_IA64_REL64LSB
:
3348 dyn_r_type
= R_IA64_REL64MSB
;
3350 case R_IA64_DIR64LSB
:
3351 dyn_r_type
= R_IA64_DIR64MSB
;
3353 case R_IA64_FPTR64LSB
:
3354 dyn_r_type
= R_IA64_FPTR64MSB
;
3356 case R_IA64_TPREL64LSB
:
3357 dyn_r_type
= R_IA64_TPREL64MSB
;
3359 case R_IA64_DTPMOD64LSB
:
3360 dyn_r_type
= R_IA64_DTPMOD64MSB
;
3362 case R_IA64_DTPREL64LSB
:
3363 dyn_r_type
= R_IA64_DTPREL64MSB
;
3371 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, got_sec
,
3372 ia64_info
->root
.srelgot
,
3373 got_offset
, dyn_r_type
,
3378 /* Return the address of the linkage table entry. */
3379 value
= (got_sec
->output_section
->vma
3380 + got_sec
->output_offset
3386 /* Fill in a function descriptor consisting of the function's code
3387 address and its global pointer. Return the descriptor's address. */
3390 set_fptr_entry (bfd
*abfd
, struct bfd_link_info
*info
,
3391 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
3394 struct elfNN_ia64_link_hash_table
*ia64_info
;
3397 ia64_info
= elfNN_ia64_hash_table (info
);
3398 if (ia64_info
== NULL
)
3401 fptr_sec
= ia64_info
->fptr_sec
;
3403 if (!dyn_i
->fptr_done
)
3405 dyn_i
->fptr_done
= 1;
3407 /* Fill in the function descriptor. */
3408 bfd_put_64 (abfd
, value
, fptr_sec
->contents
+ dyn_i
->fptr_offset
);
3409 bfd_put_64 (abfd
, _bfd_get_gp_value (abfd
),
3410 fptr_sec
->contents
+ dyn_i
->fptr_offset
+ 8);
3411 if (ia64_info
->rel_fptr_sec
)
3413 Elf_Internal_Rela outrel
;
3416 if (bfd_little_endian (abfd
))
3417 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTLSB
);
3419 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTMSB
);
3420 outrel
.r_addend
= value
;
3421 outrel
.r_offset
= (fptr_sec
->output_section
->vma
3422 + fptr_sec
->output_offset
3423 + dyn_i
->fptr_offset
);
3424 loc
= ia64_info
->rel_fptr_sec
->contents
;
3425 loc
+= ia64_info
->rel_fptr_sec
->reloc_count
++
3426 * sizeof (ElfNN_External_Rela
);
3427 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3431 /* Return the descriptor's address. */
3432 value
= (fptr_sec
->output_section
->vma
3433 + fptr_sec
->output_offset
3434 + dyn_i
->fptr_offset
);
3439 /* Fill in a PLTOFF entry consisting of the function's code address
3440 and its global pointer. Return the descriptor's address. */
3443 set_pltoff_entry (bfd
*abfd
, struct bfd_link_info
*info
,
3444 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
3445 bfd_vma value
, bfd_boolean is_plt
)
3447 struct elfNN_ia64_link_hash_table
*ia64_info
;
3448 asection
*pltoff_sec
;
3450 ia64_info
= elfNN_ia64_hash_table (info
);
3451 if (ia64_info
== NULL
)
3454 pltoff_sec
= ia64_info
->pltoff_sec
;
3456 /* Don't do anything if this symbol uses a real PLT entry. In
3457 that case, we'll fill this in during finish_dynamic_symbol. */
3458 if ((! dyn_i
->want_plt
|| is_plt
)
3459 && !dyn_i
->pltoff_done
)
3461 bfd_vma gp
= _bfd_get_gp_value (abfd
);
3463 /* Fill in the function descriptor. */
3464 bfd_put_64 (abfd
, value
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
);
3465 bfd_put_64 (abfd
, gp
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
+ 8);
3467 /* Install dynamic relocations if needed. */
3469 && bfd_link_pic (info
)
3471 || (ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3472 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info
, dyn_i
->h
))
3473 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3475 unsigned int dyn_r_type
;
3477 if (bfd_big_endian (abfd
))
3478 dyn_r_type
= R_IA64_RELNNMSB
;
3480 dyn_r_type
= R_IA64_RELNNLSB
;
3482 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3483 ia64_info
->rel_pltoff_sec
,
3484 dyn_i
->pltoff_offset
,
3485 dyn_r_type
, 0, value
);
3486 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3487 ia64_info
->rel_pltoff_sec
,
3488 dyn_i
->pltoff_offset
+ ARCH_SIZE
/ 8,
3492 dyn_i
->pltoff_done
= 1;
3495 /* Return the descriptor's address. */
3496 value
= (pltoff_sec
->output_section
->vma
3497 + pltoff_sec
->output_offset
3498 + dyn_i
->pltoff_offset
);
3503 /* Return the base VMA address which should be subtracted from real addresses
3504 when resolving @tprel() relocation.
3505 Main program TLS (whose template starts at PT_TLS p_vaddr)
3506 is assigned offset round(2 * size of pointer, PT_TLS p_align). */
3509 elfNN_ia64_tprel_base (struct bfd_link_info
*info
)
3511 asection
*tls_sec
= elf_hash_table (info
)->tls_sec
;
3512 return tls_sec
->vma
- align_power ((bfd_vma
) ARCH_SIZE
/ 4,
3513 tls_sec
->alignment_power
);
3516 /* Return the base VMA address which should be subtracted from real addresses
3517 when resolving @dtprel() relocation.
3518 This is PT_TLS segment p_vaddr. */
3521 elfNN_ia64_dtprel_base (struct bfd_link_info
*info
)
3523 return elf_hash_table (info
)->tls_sec
->vma
;
3526 /* Called through qsort to sort the .IA_64.unwind section during a
3527 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3528 to the output bfd so we can do proper endianness frobbing. */
3530 static bfd
*elfNN_ia64_unwind_entry_compare_bfd
;
3533 elfNN_ia64_unwind_entry_compare (const void * a
, const void * b
)
3537 av
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, a
);
3538 bv
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, b
);
3540 return (av
< bv
? -1 : av
> bv
? 1 : 0);
3543 /* Make sure we've got ourselves a nice fat __gp value. */
3545 elfNN_ia64_choose_gp (bfd
*abfd
, struct bfd_link_info
*info
, bfd_boolean final
)
3547 bfd_vma min_vma
= (bfd_vma
) -1, max_vma
= 0;
3548 bfd_vma min_short_vma
= min_vma
, max_short_vma
= 0;
3549 struct elf_link_hash_entry
*gp
;
3552 struct elfNN_ia64_link_hash_table
*ia64_info
;
3554 ia64_info
= elfNN_ia64_hash_table (info
);
3555 if (ia64_info
== NULL
)
3558 /* Find the min and max vma of all sections marked short. Also collect
3559 min and max vma of any type, for use in selecting a nice gp. */
3560 for (os
= abfd
->sections
; os
; os
= os
->next
)
3564 if ((os
->flags
& SEC_ALLOC
) == 0)
3568 /* When this function is called from elfNN_ia64_final_link
3569 the correct value to use is os->size. When called from
3570 elfNN_ia64_relax_section we are in the middle of section
3571 sizing; some sections will already have os->size set, others
3572 will have os->size zero and os->rawsize the previous size. */
3573 hi
= os
->vma
+ (!final
&& os
->rawsize
? os
->rawsize
: os
->size
);
3581 if (os
->flags
& SEC_SMALL_DATA
)
3583 if (min_short_vma
> lo
)
3585 if (max_short_vma
< hi
)
3590 if (ia64_info
->min_short_sec
)
3593 > (ia64_info
->min_short_sec
->vma
3594 + ia64_info
->min_short_offset
))
3595 min_short_vma
= (ia64_info
->min_short_sec
->vma
3596 + ia64_info
->min_short_offset
);
3598 < (ia64_info
->max_short_sec
->vma
3599 + ia64_info
->max_short_offset
))
3600 max_short_vma
= (ia64_info
->max_short_sec
->vma
3601 + ia64_info
->max_short_offset
);
3604 /* See if the user wants to force a value. */
3605 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3609 && (gp
->root
.type
== bfd_link_hash_defined
3610 || gp
->root
.type
== bfd_link_hash_defweak
))
3612 asection
*gp_sec
= gp
->root
.u
.def
.section
;
3613 gp_val
= (gp
->root
.u
.def
.value
3614 + gp_sec
->output_section
->vma
3615 + gp_sec
->output_offset
);
3619 /* Pick a sensible value. */
3621 if (ia64_info
->min_short_sec
)
3623 bfd_vma short_range
= max_short_vma
- min_short_vma
;
3625 /* If min_short_sec is set, pick one in the middle bewteen
3626 min_short_vma and max_short_vma. */
3627 if (short_range
>= 0x400000)
3629 gp_val
= min_short_vma
+ short_range
/ 2;
3633 asection
*got_sec
= ia64_info
->root
.sgot
;
3635 /* Start with just the address of the .got. */
3637 gp_val
= got_sec
->output_section
->vma
;
3638 else if (max_short_vma
!= 0)
3639 gp_val
= min_short_vma
;
3640 else if (max_vma
- min_vma
< 0x200000)
3643 gp_val
= max_vma
- 0x200000 + 8;
3646 /* If it is possible to address the entire image, but we
3647 don't with the choice above, adjust. */
3648 if (max_vma
- min_vma
< 0x400000
3649 && (max_vma
- gp_val
>= 0x200000
3650 || gp_val
- min_vma
> 0x200000))
3651 gp_val
= min_vma
+ 0x200000;
3652 else if (max_short_vma
!= 0)
3654 /* If we don't cover all the short data, adjust. */
3655 if (max_short_vma
- gp_val
>= 0x200000)
3656 gp_val
= min_short_vma
+ 0x200000;
3658 /* If we're addressing stuff past the end, adjust back. */
3659 if (gp_val
> max_vma
)
3660 gp_val
= max_vma
- 0x200000 + 8;
3664 /* Validate whether all SHF_IA_64_SHORT sections are within
3665 range of the chosen GP. */
3667 if (max_short_vma
!= 0)
3669 if (max_short_vma
- min_short_vma
>= 0x400000)
3673 /* xgettext:c-format */
3674 (_("%pB: short data segment overflowed (%#" PRIx64
" >= 0x400000)"),
3675 abfd
, (uint64_t) (max_short_vma
- min_short_vma
));
3678 else if ((gp_val
> min_short_vma
3679 && gp_val
- min_short_vma
> 0x200000)
3680 || (gp_val
< max_short_vma
3681 && max_short_vma
- gp_val
>= 0x200000))
3684 (_("%pB: __gp does not cover short data segment"), abfd
);
3689 _bfd_set_gp_value (abfd
, gp_val
);
3695 elfNN_ia64_final_link (bfd
*abfd
, struct bfd_link_info
*info
)
3697 struct elfNN_ia64_link_hash_table
*ia64_info
;
3698 asection
*unwind_output_sec
;
3700 ia64_info
= elfNN_ia64_hash_table (info
);
3701 if (ia64_info
== NULL
)
3704 /* Make sure we've got ourselves a nice fat __gp value. */
3705 if (!bfd_link_relocatable (info
))
3708 struct elf_link_hash_entry
*gp
;
3710 /* We assume after gp is set, section size will only decrease. We
3711 need to adjust gp for it. */
3712 _bfd_set_gp_value (abfd
, 0);
3713 if (! elfNN_ia64_choose_gp (abfd
, info
, TRUE
))
3715 gp_val
= _bfd_get_gp_value (abfd
);
3717 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3721 gp
->root
.type
= bfd_link_hash_defined
;
3722 gp
->root
.u
.def
.value
= gp_val
;
3723 gp
->root
.u
.def
.section
= bfd_abs_section_ptr
;
3727 /* If we're producing a final executable, we need to sort the contents
3728 of the .IA_64.unwind section. Force this section to be relocated
3729 into memory rather than written immediately to the output file. */
3730 unwind_output_sec
= NULL
;
3731 if (!bfd_link_relocatable (info
))
3733 asection
*s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_unwind
);
3736 unwind_output_sec
= s
->output_section
;
3737 unwind_output_sec
->contents
3738 = bfd_malloc (unwind_output_sec
->size
);
3739 if (unwind_output_sec
->contents
== NULL
)
3744 /* Invoke the regular ELF backend linker to do all the work. */
3745 if (!bfd_elf_final_link (abfd
, info
))
3748 if (unwind_output_sec
)
3750 elfNN_ia64_unwind_entry_compare_bfd
= abfd
;
3751 qsort (unwind_output_sec
->contents
,
3752 (size_t) (unwind_output_sec
->size
/ 24),
3754 elfNN_ia64_unwind_entry_compare
);
3756 if (! bfd_set_section_contents (abfd
, unwind_output_sec
,
3757 unwind_output_sec
->contents
, (bfd_vma
) 0,
3758 unwind_output_sec
->size
))
3766 elfNN_ia64_relocate_section (bfd
*output_bfd
,
3767 struct bfd_link_info
*info
,
3769 asection
*input_section
,
3771 Elf_Internal_Rela
*relocs
,
3772 Elf_Internal_Sym
*local_syms
,
3773 asection
**local_sections
)
3775 struct elfNN_ia64_link_hash_table
*ia64_info
;
3776 Elf_Internal_Shdr
*symtab_hdr
;
3777 Elf_Internal_Rela
*rel
;
3778 Elf_Internal_Rela
*relend
;
3780 bfd_boolean ret_val
= TRUE
; /* for non-fatal errors */
3783 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3784 ia64_info
= elfNN_ia64_hash_table (info
);
3785 if (ia64_info
== NULL
)
3788 /* Infect various flags from the input section to the output section. */
3789 if (bfd_link_relocatable (info
))
3793 flags
= elf_section_data(input_section
)->this_hdr
.sh_flags
;
3794 flags
&= SHF_IA_64_NORECOV
;
3796 elf_section_data(input_section
->output_section
)
3797 ->this_hdr
.sh_flags
|= flags
;
3800 gp_val
= _bfd_get_gp_value (output_bfd
);
3801 srel
= get_reloc_section (input_bfd
, ia64_info
, input_section
, FALSE
);
3804 relend
= relocs
+ input_section
->reloc_count
;
3805 for (; rel
< relend
; ++rel
)
3807 struct elf_link_hash_entry
*h
;
3808 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3809 bfd_reloc_status_type r
;
3810 reloc_howto_type
*howto
;
3811 unsigned long r_symndx
;
3812 Elf_Internal_Sym
*sym
;
3813 unsigned int r_type
;
3817 bfd_boolean dynamic_symbol_p
;
3818 bfd_boolean undef_weak_ref
;
3820 r_type
= ELFNN_R_TYPE (rel
->r_info
);
3821 if (r_type
> R_IA64_MAX_RELOC_CODE
)
3823 /* xgettext:c-format */
3824 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
3825 input_bfd
, (int) r_type
);
3826 bfd_set_error (bfd_error_bad_value
);
3831 howto
= ia64_elf_lookup_howto (r_type
);
3838 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
3842 undef_weak_ref
= FALSE
;
3844 if (r_symndx
< symtab_hdr
->sh_info
)
3846 /* Reloc against local symbol. */
3848 sym
= local_syms
+ r_symndx
;
3849 sym_sec
= local_sections
[r_symndx
];
3851 value
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &msec
, rel
);
3852 if (!bfd_link_relocatable (info
)
3853 && (sym_sec
->flags
& SEC_MERGE
) != 0
3854 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
3855 && sym_sec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
3857 struct elfNN_ia64_local_hash_entry
*loc_h
;
3859 loc_h
= get_local_sym_hash (ia64_info
, input_bfd
, rel
, FALSE
);
3860 if (loc_h
&& ! loc_h
->sec_merge_done
)
3862 struct elfNN_ia64_dyn_sym_info
*dynent
;
3865 for (count
= loc_h
->count
, dynent
= loc_h
->info
;
3871 _bfd_merged_section_offset (output_bfd
, &msec
,
3872 elf_section_data (msec
)->
3876 dynent
->addend
-= sym
->st_value
;
3877 dynent
->addend
+= msec
->output_section
->vma
3878 + msec
->output_offset
3879 - sym_sec
->output_section
->vma
3880 - sym_sec
->output_offset
;
3883 /* We may have introduced duplicated entries. We need
3884 to remove them properly. */
3885 count
= sort_dyn_sym_info (loc_h
->info
, loc_h
->count
);
3886 if (count
!= loc_h
->count
)
3888 loc_h
->count
= count
;
3889 loc_h
->sorted_count
= count
;
3892 loc_h
->sec_merge_done
= 1;
3898 bfd_boolean unresolved_reloc
;
3899 bfd_boolean warned
, ignored
;
3900 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
3902 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
3903 r_symndx
, symtab_hdr
, sym_hashes
,
3905 unresolved_reloc
, warned
, ignored
);
3907 if (h
->root
.type
== bfd_link_hash_undefweak
)
3908 undef_weak_ref
= TRUE
;
3909 else if (warned
|| (ignored
&& bfd_link_executable (info
)))
3913 if (sym_sec
!= NULL
&& discarded_section (sym_sec
))
3914 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
3915 rel
, 1, relend
, howto
, 0, contents
);
3917 if (bfd_link_relocatable (info
))
3920 hit_addr
= contents
+ rel
->r_offset
;
3921 value
+= rel
->r_addend
;
3922 dynamic_symbol_p
= elfNN_ia64_dynamic_symbol_p (h
, info
, r_type
);
3933 case R_IA64_DIR32MSB
:
3934 case R_IA64_DIR32LSB
:
3935 case R_IA64_DIR64MSB
:
3936 case R_IA64_DIR64LSB
:
3937 /* Install a dynamic relocation for this reloc. */
3938 if ((dynamic_symbol_p
|| bfd_link_pic (info
))
3939 && !(h
&& UNDEFWEAK_NO_DYNAMIC_RELOC (info
, h
))
3940 && r_symndx
!= STN_UNDEF
3941 && (input_section
->flags
& SEC_ALLOC
) != 0)
3943 unsigned int dyn_r_type
;
3947 BFD_ASSERT (srel
!= NULL
);
3954 /* ??? People shouldn't be doing non-pic code in
3955 shared libraries nor dynamic executables. */
3957 /* xgettext:c-format */
3958 (_("%pB: non-pic code with imm relocation against dynamic symbol `%s'"),
3960 h
? h
->root
.root
.string
3961 : bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
3970 /* If we don't need dynamic symbol lookup, find a
3971 matching RELATIVE relocation. */
3972 dyn_r_type
= r_type
;
3973 if (dynamic_symbol_p
)
3975 dynindx
= h
->dynindx
;
3976 addend
= rel
->r_addend
;
3983 case R_IA64_DIR32MSB
:
3984 dyn_r_type
= R_IA64_REL32MSB
;
3986 case R_IA64_DIR32LSB
:
3987 dyn_r_type
= R_IA64_REL32LSB
;
3989 case R_IA64_DIR64MSB
:
3990 dyn_r_type
= R_IA64_REL64MSB
;
3992 case R_IA64_DIR64LSB
:
3993 dyn_r_type
= R_IA64_REL64LSB
;
4003 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4004 srel
, rel
->r_offset
, dyn_r_type
,
4009 case R_IA64_LTV32MSB
:
4010 case R_IA64_LTV32LSB
:
4011 case R_IA64_LTV64MSB
:
4012 case R_IA64_LTV64LSB
:
4013 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4016 case R_IA64_GPREL22
:
4017 case R_IA64_GPREL64I
:
4018 case R_IA64_GPREL32MSB
:
4019 case R_IA64_GPREL32LSB
:
4020 case R_IA64_GPREL64MSB
:
4021 case R_IA64_GPREL64LSB
:
4022 if (dynamic_symbol_p
)
4025 /* xgettext:c-format */
4026 (_("%pB: @gprel relocation against dynamic symbol %s"),
4028 h
? h
->root
.root
.string
4029 : bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4035 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4038 case R_IA64_LTOFF22
:
4039 case R_IA64_LTOFF22X
:
4040 case R_IA64_LTOFF64I
:
4041 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4042 value
= set_got_entry (input_bfd
, info
, dyn_i
, (h
? h
->dynindx
: -1),
4043 rel
->r_addend
, value
, R_IA64_DIRNNLSB
);
4045 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4048 case R_IA64_PLTOFF22
:
4049 case R_IA64_PLTOFF64I
:
4050 case R_IA64_PLTOFF64MSB
:
4051 case R_IA64_PLTOFF64LSB
:
4052 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4053 value
= set_pltoff_entry (output_bfd
, info
, dyn_i
, value
, FALSE
);
4055 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4058 case R_IA64_FPTR64I
:
4059 case R_IA64_FPTR32MSB
:
4060 case R_IA64_FPTR32LSB
:
4061 case R_IA64_FPTR64MSB
:
4062 case R_IA64_FPTR64LSB
:
4063 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4064 if (dyn_i
->want_fptr
)
4066 if (!undef_weak_ref
)
4067 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4069 if (!dyn_i
->want_fptr
|| bfd_link_pie (info
))
4072 unsigned int dyn_r_type
= r_type
;
4073 bfd_vma addend
= rel
->r_addend
;
4075 /* Otherwise, we expect the dynamic linker to create
4078 if (dyn_i
->want_fptr
)
4080 if (r_type
== R_IA64_FPTR64I
)
4082 /* We can't represent this without a dynamic symbol.
4083 Adjust the relocation to be against an output
4084 section symbol, which are always present in the
4085 dynamic symbol table. */
4086 /* ??? People shouldn't be doing non-pic code in
4087 shared libraries. Hork. */
4089 (_("%pB: linking non-pic code in a position independent executable"),
4096 dyn_r_type
= r_type
+ R_IA64_RELNNLSB
- R_IA64_FPTRNNLSB
;
4100 if (h
->dynindx
!= -1)
4101 dynindx
= h
->dynindx
;
4103 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4104 (info
, h
->root
.u
.def
.section
->owner
,
4105 global_sym_index (h
)));
4110 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4111 (info
, input_bfd
, (long) r_symndx
));
4115 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4116 srel
, rel
->r_offset
, dyn_r_type
,
4120 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4123 case R_IA64_LTOFF_FPTR22
:
4124 case R_IA64_LTOFF_FPTR64I
:
4125 case R_IA64_LTOFF_FPTR32MSB
:
4126 case R_IA64_LTOFF_FPTR32LSB
:
4127 case R_IA64_LTOFF_FPTR64MSB
:
4128 case R_IA64_LTOFF_FPTR64LSB
:
4132 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4133 if (dyn_i
->want_fptr
)
4135 BFD_ASSERT (h
== NULL
|| h
->dynindx
== -1);
4136 if (!undef_weak_ref
)
4137 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4142 /* Otherwise, we expect the dynamic linker to create
4146 if (h
->dynindx
!= -1)
4147 dynindx
= h
->dynindx
;
4149 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4150 (info
, h
->root
.u
.def
.section
->owner
,
4151 global_sym_index (h
)));
4154 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4155 (info
, input_bfd
, (long) r_symndx
));
4159 value
= set_got_entry (output_bfd
, info
, dyn_i
, dynindx
,
4160 rel
->r_addend
, value
, R_IA64_FPTRNNLSB
);
4162 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4166 case R_IA64_PCREL32MSB
:
4167 case R_IA64_PCREL32LSB
:
4168 case R_IA64_PCREL64MSB
:
4169 case R_IA64_PCREL64LSB
:
4170 /* Install a dynamic relocation for this reloc. */
4171 if (dynamic_symbol_p
&& r_symndx
!= STN_UNDEF
)
4173 BFD_ASSERT (srel
!= NULL
);
4175 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4176 srel
, rel
->r_offset
, r_type
,
4177 h
->dynindx
, rel
->r_addend
);
4181 case R_IA64_PCREL21B
:
4182 case R_IA64_PCREL60B
:
4183 /* We should have created a PLT entry for any dynamic symbol. */
4186 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4188 if (dyn_i
&& dyn_i
->want_plt2
)
4190 /* Should have caught this earlier. */
4191 BFD_ASSERT (rel
->r_addend
== 0);
4193 value
= (ia64_info
->root
.splt
->output_section
->vma
4194 + ia64_info
->root
.splt
->output_offset
4195 + dyn_i
->plt2_offset
);
4199 /* Since there's no PLT entry, Validate that this is
4201 BFD_ASSERT (undef_weak_ref
|| sym_sec
->output_section
!= NULL
);
4203 /* If the symbol is undef_weak, we shouldn't be trying
4204 to call it. There's every chance that we'd wind up
4205 with an out-of-range fixup here. Don't bother setting
4206 any value at all. */
4212 case R_IA64_PCREL21BI
:
4213 case R_IA64_PCREL21F
:
4214 case R_IA64_PCREL21M
:
4215 case R_IA64_PCREL22
:
4216 case R_IA64_PCREL64I
:
4217 /* The PCREL21BI reloc is specifically not intended for use with
4218 dynamic relocs. PCREL21F and PCREL21M are used for speculation
4219 fixup code, and thus probably ought not be dynamic. The
4220 PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4221 if (dynamic_symbol_p
)
4225 if (r_type
== R_IA64_PCREL21BI
)
4226 /* xgettext:c-format */
4227 msg
= _("%pB: @internal branch to dynamic symbol %s");
4228 else if (r_type
== R_IA64_PCREL21F
|| r_type
== R_IA64_PCREL21M
)
4229 /* xgettext:c-format */
4230 msg
= _("%pB: speculation fixup to dynamic symbol %s");
4232 /* xgettext:c-format */
4233 msg
= _("%pB: @pcrel relocation against dynamic symbol %s");
4234 _bfd_error_handler (msg
, input_bfd
,
4235 h
? h
->root
.root
.string
4236 : bfd_elf_sym_name (input_bfd
,
4246 /* Make pc-relative. */
4247 value
-= (input_section
->output_section
->vma
4248 + input_section
->output_offset
4249 + rel
->r_offset
) & ~ (bfd_vma
) 0x3;
4250 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4253 case R_IA64_SEGREL32MSB
:
4254 case R_IA64_SEGREL32LSB
:
4255 case R_IA64_SEGREL64MSB
:
4256 case R_IA64_SEGREL64LSB
:
4258 /* Find the segment that contains the output_section. */
4259 Elf_Internal_Phdr
*p
= _bfd_elf_find_segment_containing_section
4260 (output_bfd
, input_section
->output_section
);
4264 r
= bfd_reloc_notsupported
;
4268 /* The VMA of the segment is the vaddr of the associated
4270 if (value
> p
->p_vaddr
)
4271 value
-= p
->p_vaddr
;
4274 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4279 case R_IA64_SECREL32MSB
:
4280 case R_IA64_SECREL32LSB
:
4281 case R_IA64_SECREL64MSB
:
4282 case R_IA64_SECREL64LSB
:
4283 /* Make output-section relative to section where the symbol
4284 is defined. PR 475 */
4286 value
-= sym_sec
->output_section
->vma
;
4287 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4290 case R_IA64_IPLTMSB
:
4291 case R_IA64_IPLTLSB
:
4292 /* Install a dynamic relocation for this reloc. */
4293 if ((dynamic_symbol_p
|| bfd_link_pic (info
))
4294 && (input_section
->flags
& SEC_ALLOC
) != 0)
4296 BFD_ASSERT (srel
!= NULL
);
4298 /* If we don't need dynamic symbol lookup, install two
4299 RELATIVE relocations. */
4300 if (!dynamic_symbol_p
)
4302 unsigned int dyn_r_type
;
4304 if (r_type
== R_IA64_IPLTMSB
)
4305 dyn_r_type
= R_IA64_REL64MSB
;
4307 dyn_r_type
= R_IA64_REL64LSB
;
4309 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4311 srel
, rel
->r_offset
,
4312 dyn_r_type
, 0, value
);
4313 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4315 srel
, rel
->r_offset
+ 8,
4316 dyn_r_type
, 0, gp_val
);
4319 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4320 srel
, rel
->r_offset
, r_type
,
4321 h
->dynindx
, rel
->r_addend
);
4324 if (r_type
== R_IA64_IPLTMSB
)
4325 r_type
= R_IA64_DIR64MSB
;
4327 r_type
= R_IA64_DIR64LSB
;
4328 ia64_elf_install_value (hit_addr
, value
, r_type
);
4329 r
= ia64_elf_install_value (hit_addr
+ 8, gp_val
, r_type
);
4332 case R_IA64_TPREL14
:
4333 case R_IA64_TPREL22
:
4334 case R_IA64_TPREL64I
:
4335 if (elf_hash_table (info
)->tls_sec
== NULL
)
4336 goto missing_tls_sec
;
4337 value
-= elfNN_ia64_tprel_base (info
);
4338 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4341 case R_IA64_DTPREL14
:
4342 case R_IA64_DTPREL22
:
4343 case R_IA64_DTPREL64I
:
4344 case R_IA64_DTPREL32LSB
:
4345 case R_IA64_DTPREL32MSB
:
4346 case R_IA64_DTPREL64LSB
:
4347 case R_IA64_DTPREL64MSB
:
4348 if (elf_hash_table (info
)->tls_sec
== NULL
)
4349 goto missing_tls_sec
;
4350 value
-= elfNN_ia64_dtprel_base (info
);
4351 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4354 case R_IA64_LTOFF_TPREL22
:
4355 case R_IA64_LTOFF_DTPMOD22
:
4356 case R_IA64_LTOFF_DTPREL22
:
4359 long dynindx
= h
? h
->dynindx
: -1;
4360 bfd_vma r_addend
= rel
->r_addend
;
4365 case R_IA64_LTOFF_TPREL22
:
4366 if (!dynamic_symbol_p
)
4368 if (elf_hash_table (info
)->tls_sec
== NULL
)
4369 goto missing_tls_sec
;
4370 if (!bfd_link_pic (info
))
4371 value
-= elfNN_ia64_tprel_base (info
);
4374 r_addend
+= value
- elfNN_ia64_dtprel_base (info
);
4378 got_r_type
= R_IA64_TPREL64LSB
;
4380 case R_IA64_LTOFF_DTPMOD22
:
4381 if (!dynamic_symbol_p
&& !bfd_link_pic (info
))
4383 got_r_type
= R_IA64_DTPMOD64LSB
;
4385 case R_IA64_LTOFF_DTPREL22
:
4386 if (!dynamic_symbol_p
)
4388 if (elf_hash_table (info
)->tls_sec
== NULL
)
4389 goto missing_tls_sec
;
4390 value
-= elfNN_ia64_dtprel_base (info
);
4392 got_r_type
= R_IA64_DTPRELNNLSB
;
4395 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4396 value
= set_got_entry (input_bfd
, info
, dyn_i
, dynindx
, r_addend
,
4399 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4404 r
= bfd_reloc_notsupported
;
4413 case bfd_reloc_undefined
:
4414 /* This can happen for global table relative relocs if
4415 __gp is undefined. This is a panic situation so we
4416 don't try to continue. */
4417 (*info
->callbacks
->undefined_symbol
)
4418 (info
, "__gp", input_bfd
, input_section
, rel
->r_offset
, 1);
4421 case bfd_reloc_notsupported
:
4426 name
= h
->root
.root
.string
;
4428 name
= bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4430 (*info
->callbacks
->warning
) (info
, _("unsupported reloc"),
4432 input_section
, rel
->r_offset
);
4437 case bfd_reloc_dangerous
:
4438 case bfd_reloc_outofrange
:
4439 case bfd_reloc_overflow
:
4446 name
= h
->root
.root
.string
;
4448 name
= bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4453 case R_IA64_TPREL14
:
4454 case R_IA64_TPREL22
:
4455 case R_IA64_TPREL64I
:
4456 case R_IA64_DTPREL14
:
4457 case R_IA64_DTPREL22
:
4458 case R_IA64_DTPREL64I
:
4459 case R_IA64_DTPREL32LSB
:
4460 case R_IA64_DTPREL32MSB
:
4461 case R_IA64_DTPREL64LSB
:
4462 case R_IA64_DTPREL64MSB
:
4463 case R_IA64_LTOFF_TPREL22
:
4464 case R_IA64_LTOFF_DTPMOD22
:
4465 case R_IA64_LTOFF_DTPREL22
:
4467 /* xgettext:c-format */
4468 (_("%pB: missing TLS section for relocation %s against `%s'"
4469 " at %#" PRIx64
" in section `%pA'."),
4470 input_bfd
, howto
->name
, name
,
4471 (uint64_t) rel
->r_offset
, input_section
);
4474 case R_IA64_PCREL21B
:
4475 case R_IA64_PCREL21BI
:
4476 case R_IA64_PCREL21M
:
4477 case R_IA64_PCREL21F
:
4478 if (is_elf_hash_table (info
->hash
))
4480 /* Relaxtion is always performed for ELF output.
4481 Overflow failures for those relocations mean
4482 that the section is too big to relax. */
4484 /* xgettext:c-format */
4485 (_("%pB: Can't relax br (%s) to `%s' at %#" PRIx64
4486 " in section `%pA' with size %#" PRIx64
4488 input_bfd
, howto
->name
, name
, (uint64_t) rel
->r_offset
,
4489 input_section
, (uint64_t) input_section
->size
);
4494 (*info
->callbacks
->reloc_overflow
) (info
,
4515 elfNN_ia64_finish_dynamic_symbol (bfd
*output_bfd
,
4516 struct bfd_link_info
*info
,
4517 struct elf_link_hash_entry
*h
,
4518 Elf_Internal_Sym
*sym
)
4520 struct elfNN_ia64_link_hash_table
*ia64_info
;
4521 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
4523 ia64_info
= elfNN_ia64_hash_table (info
);
4524 if (ia64_info
== NULL
)
4527 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4529 /* Fill in the PLT data, if required. */
4530 if (dyn_i
&& dyn_i
->want_plt
)
4532 Elf_Internal_Rela outrel
;
4535 bfd_vma plt_addr
, pltoff_addr
, gp_val
, plt_index
;
4537 gp_val
= _bfd_get_gp_value (output_bfd
);
4539 /* Initialize the minimal PLT entry. */
4541 plt_index
= (dyn_i
->plt_offset
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
4542 plt_sec
= ia64_info
->root
.splt
;
4543 loc
= plt_sec
->contents
+ dyn_i
->plt_offset
;
4545 memcpy (loc
, plt_min_entry
, PLT_MIN_ENTRY_SIZE
);
4546 ia64_elf_install_value (loc
, plt_index
, R_IA64_IMM22
);
4547 ia64_elf_install_value (loc
+2, -dyn_i
->plt_offset
, R_IA64_PCREL21B
);
4549 plt_addr
= (plt_sec
->output_section
->vma
4550 + plt_sec
->output_offset
4551 + dyn_i
->plt_offset
);
4552 pltoff_addr
= set_pltoff_entry (output_bfd
, info
, dyn_i
, plt_addr
, TRUE
);
4554 /* Initialize the FULL PLT entry, if needed. */
4555 if (dyn_i
->want_plt2
)
4557 loc
= plt_sec
->contents
+ dyn_i
->plt2_offset
;
4559 memcpy (loc
, plt_full_entry
, PLT_FULL_ENTRY_SIZE
);
4560 ia64_elf_install_value (loc
, pltoff_addr
- gp_val
, R_IA64_IMM22
);
4562 /* Mark the symbol as undefined, rather than as defined in the
4563 plt section. Leave the value alone. */
4564 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4565 first place. But perhaps elflink.c did some for us. */
4566 if (!h
->def_regular
)
4567 sym
->st_shndx
= SHN_UNDEF
;
4570 /* Create the dynamic relocation. */
4571 outrel
.r_offset
= pltoff_addr
;
4572 if (bfd_little_endian (output_bfd
))
4573 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTLSB
);
4575 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTMSB
);
4576 outrel
.r_addend
= 0;
4578 /* This is fun. In the .IA_64.pltoff section, we've got entries
4579 that correspond both to real PLT entries, and those that
4580 happened to resolve to local symbols but need to be created
4581 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4582 relocations for the real PLT should come at the end of the
4583 section, so that they can be indexed by plt entry at runtime.
4585 We emitted all of the relocations for the non-PLT @pltoff
4586 entries during relocate_section. So we can consider the
4587 existing sec->reloc_count to be the base of the array of
4590 loc
= ia64_info
->rel_pltoff_sec
->contents
;
4591 loc
+= ((ia64_info
->rel_pltoff_sec
->reloc_count
+ plt_index
)
4592 * sizeof (ElfNN_External_Rela
));
4593 bfd_elfNN_swap_reloca_out (output_bfd
, &outrel
, loc
);
4596 /* Mark some specially defined symbols as absolute. */
4597 if (h
== ia64_info
->root
.hdynamic
4598 || h
== ia64_info
->root
.hgot
4599 || h
== ia64_info
->root
.hplt
)
4600 sym
->st_shndx
= SHN_ABS
;
4606 elfNN_ia64_finish_dynamic_sections (bfd
*abfd
,
4607 struct bfd_link_info
*info
)
4609 struct elfNN_ia64_link_hash_table
*ia64_info
;
4612 ia64_info
= elfNN_ia64_hash_table (info
);
4613 if (ia64_info
== NULL
)
4616 dynobj
= ia64_info
->root
.dynobj
;
4618 if (ia64_info
->root
.dynamic_sections_created
)
4620 ElfNN_External_Dyn
*dyncon
, *dynconend
;
4621 asection
*sdyn
, *sgotplt
;
4624 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
4625 sgotplt
= ia64_info
->root
.sgotplt
;
4626 BFD_ASSERT (sdyn
!= NULL
);
4627 dyncon
= (ElfNN_External_Dyn
*) sdyn
->contents
;
4628 dynconend
= (ElfNN_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
4630 gp_val
= _bfd_get_gp_value (abfd
);
4632 for (; dyncon
< dynconend
; dyncon
++)
4634 Elf_Internal_Dyn dyn
;
4636 bfd_elfNN_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4641 dyn
.d_un
.d_ptr
= gp_val
;
4645 dyn
.d_un
.d_val
= (ia64_info
->minplt_entries
4646 * sizeof (ElfNN_External_Rela
));
4650 /* See the comment above in finish_dynamic_symbol. */
4651 dyn
.d_un
.d_ptr
= (ia64_info
->rel_pltoff_sec
->output_section
->vma
4652 + ia64_info
->rel_pltoff_sec
->output_offset
4653 + (ia64_info
->rel_pltoff_sec
->reloc_count
4654 * sizeof (ElfNN_External_Rela
)));
4657 case DT_IA_64_PLT_RESERVE
:
4658 dyn
.d_un
.d_ptr
= (sgotplt
->output_section
->vma
4659 + sgotplt
->output_offset
);
4663 bfd_elfNN_swap_dyn_out (abfd
, &dyn
, dyncon
);
4666 /* Initialize the PLT0 entry. */
4667 if (ia64_info
->root
.splt
)
4669 bfd_byte
*loc
= ia64_info
->root
.splt
->contents
;
4672 memcpy (loc
, plt_header
, PLT_HEADER_SIZE
);
4674 pltres
= (sgotplt
->output_section
->vma
4675 + sgotplt
->output_offset
4678 ia64_elf_install_value (loc
+1, pltres
, R_IA64_GPREL22
);
4685 /* ELF file flag handling: */
4687 /* Function to keep IA-64 specific file flags. */
4689 elfNN_ia64_set_private_flags (bfd
*abfd
, flagword flags
)
4691 BFD_ASSERT (!elf_flags_init (abfd
)
4692 || elf_elfheader (abfd
)->e_flags
== flags
);
4694 elf_elfheader (abfd
)->e_flags
= flags
;
4695 elf_flags_init (abfd
) = TRUE
;
4699 /* Merge backend specific data from an object file to the output
4700 object file when linking. */
4703 elfNN_ia64_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
4705 bfd
*obfd
= info
->output_bfd
;
4708 bfd_boolean ok
= TRUE
;
4710 /* FIXME: What should be checked when linking shared libraries? */
4711 if ((ibfd
->flags
& DYNAMIC
) != 0)
4714 if (!is_ia64_elf (ibfd
) || !is_ia64_elf (obfd
))
4717 in_flags
= elf_elfheader (ibfd
)->e_flags
;
4718 out_flags
= elf_elfheader (obfd
)->e_flags
;
4720 if (! elf_flags_init (obfd
))
4722 elf_flags_init (obfd
) = TRUE
;
4723 elf_elfheader (obfd
)->e_flags
= in_flags
;
4725 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
4726 && bfd_get_arch_info (obfd
)->the_default
)
4728 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
4729 bfd_get_mach (ibfd
));
4735 /* Check flag compatibility. */
4736 if (in_flags
== out_flags
)
4739 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4740 if (!(in_flags
& EF_IA_64_REDUCEDFP
) && (out_flags
& EF_IA_64_REDUCEDFP
))
4741 elf_elfheader (obfd
)->e_flags
&= ~EF_IA_64_REDUCEDFP
;
4743 if ((in_flags
& EF_IA_64_TRAPNIL
) != (out_flags
& EF_IA_64_TRAPNIL
))
4746 (_("%pB: linking trap-on-NULL-dereference with non-trapping files"),
4749 bfd_set_error (bfd_error_bad_value
);
4752 if ((in_flags
& EF_IA_64_BE
) != (out_flags
& EF_IA_64_BE
))
4755 (_("%pB: linking big-endian files with little-endian files"),
4758 bfd_set_error (bfd_error_bad_value
);
4761 if ((in_flags
& EF_IA_64_ABI64
) != (out_flags
& EF_IA_64_ABI64
))
4764 (_("%pB: linking 64-bit files with 32-bit files"),
4767 bfd_set_error (bfd_error_bad_value
);
4770 if ((in_flags
& EF_IA_64_CONS_GP
) != (out_flags
& EF_IA_64_CONS_GP
))
4773 (_("%pB: linking constant-gp files with non-constant-gp files"),
4776 bfd_set_error (bfd_error_bad_value
);
4779 if ((in_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
)
4780 != (out_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
))
4783 (_("%pB: linking auto-pic files with non-auto-pic files"),
4786 bfd_set_error (bfd_error_bad_value
);
4794 elfNN_ia64_print_private_bfd_data (bfd
*abfd
, void * ptr
)
4796 FILE *file
= (FILE *) ptr
;
4797 flagword flags
= elf_elfheader (abfd
)->e_flags
;
4799 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
4801 fprintf (file
, "private flags = %s%s%s%s%s%s%s%s\n",
4802 (flags
& EF_IA_64_TRAPNIL
) ? "TRAPNIL, " : "",
4803 (flags
& EF_IA_64_EXT
) ? "EXT, " : "",
4804 (flags
& EF_IA_64_BE
) ? "BE, " : "LE, ",
4805 (flags
& EF_IA_64_REDUCEDFP
) ? "REDUCEDFP, " : "",
4806 (flags
& EF_IA_64_CONS_GP
) ? "CONS_GP, " : "",
4807 (flags
& EF_IA_64_NOFUNCDESC_CONS_GP
) ? "NOFUNCDESC_CONS_GP, " : "",
4808 (flags
& EF_IA_64_ABSOLUTE
) ? "ABSOLUTE, " : "",
4809 (flags
& EF_IA_64_ABI64
) ? "ABI64" : "ABI32");
4811 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
4815 static enum elf_reloc_type_class
4816 elfNN_ia64_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4817 const asection
*rel_sec ATTRIBUTE_UNUSED
,
4818 const Elf_Internal_Rela
*rela
)
4820 switch ((int) ELFNN_R_TYPE (rela
->r_info
))
4822 case R_IA64_REL32MSB
:
4823 case R_IA64_REL32LSB
:
4824 case R_IA64_REL64MSB
:
4825 case R_IA64_REL64LSB
:
4826 return reloc_class_relative
;
4827 case R_IA64_IPLTMSB
:
4828 case R_IA64_IPLTLSB
:
4829 return reloc_class_plt
;
4831 return reloc_class_copy
;
4833 return reloc_class_normal
;
4837 static const struct bfd_elf_special_section elfNN_ia64_special_sections
[] =
4839 { STRING_COMMA_LEN (".sbss"), -1, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4840 { STRING_COMMA_LEN (".sdata"), -1, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4841 { NULL
, 0, 0, 0, 0 }
4845 elfNN_ia64_object_p (bfd
*abfd
)
4848 asection
*group
, *unwi
, *unw
;
4851 char *unwi_name
, *unw_name
;
4854 if (abfd
->flags
& DYNAMIC
)
4857 /* Flags for fake group section. */
4858 flags
= (SEC_LINKER_CREATED
| SEC_GROUP
| SEC_LINK_ONCE
4861 /* We add a fake section group for each .gnu.linkonce.t.* section,
4862 which isn't in a section group, and its unwind sections. */
4863 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4865 if (elf_sec_group (sec
) == NULL
4866 && ((sec
->flags
& (SEC_LINK_ONCE
| SEC_CODE
| SEC_GROUP
))
4867 == (SEC_LINK_ONCE
| SEC_CODE
))
4868 && CONST_STRNEQ (sec
->name
, ".gnu.linkonce.t."))
4870 name
= sec
->name
+ 16;
4872 amt
= strlen (name
) + sizeof (".gnu.linkonce.ia64unwi.");
4873 unwi_name
= bfd_alloc (abfd
, amt
);
4877 strcpy (stpcpy (unwi_name
, ".gnu.linkonce.ia64unwi."), name
);
4878 unwi
= bfd_get_section_by_name (abfd
, unwi_name
);
4880 amt
= strlen (name
) + sizeof (".gnu.linkonce.ia64unw.");
4881 unw_name
= bfd_alloc (abfd
, amt
);
4885 strcpy (stpcpy (unw_name
, ".gnu.linkonce.ia64unw."), name
);
4886 unw
= bfd_get_section_by_name (abfd
, unw_name
);
4888 /* We need to create a fake group section for it and its
4890 group
= bfd_make_section_anyway_with_flags (abfd
, name
,
4895 /* Move the fake group section to the beginning. */
4896 bfd_section_list_remove (abfd
, group
);
4897 bfd_section_list_prepend (abfd
, group
);
4899 elf_next_in_group (group
) = sec
;
4901 elf_group_name (sec
) = name
;
4902 elf_next_in_group (sec
) = sec
;
4903 elf_sec_group (sec
) = group
;
4907 elf_group_name (unwi
) = name
;
4908 elf_next_in_group (unwi
) = sec
;
4909 elf_next_in_group (sec
) = unwi
;
4910 elf_sec_group (unwi
) = group
;
4915 elf_group_name (unw
) = name
;
4918 elf_next_in_group (unw
) = elf_next_in_group (unwi
);
4919 elf_next_in_group (unwi
) = unw
;
4923 elf_next_in_group (unw
) = sec
;
4924 elf_next_in_group (sec
) = unw
;
4926 elf_sec_group (unw
) = group
;
4929 /* Fake SHT_GROUP section header. */
4930 elf_section_data (group
)->this_hdr
.bfd_section
= group
;
4931 elf_section_data (group
)->this_hdr
.sh_type
= SHT_GROUP
;
4938 elfNN_ia64_hpux_vec (const bfd_target
*vec
)
4940 extern const bfd_target ia64_elfNN_hpux_be_vec
;
4941 return (vec
== &ia64_elfNN_hpux_be_vec
);
4945 elfNN_hpux_init_file_header (bfd
*abfd
, struct bfd_link_info
*info
)
4947 Elf_Internal_Ehdr
*i_ehdrp
;
4949 if (!_bfd_elf_init_file_header (abfd
, info
))
4952 i_ehdrp
= elf_elfheader (abfd
);
4953 i_ehdrp
->e_ident
[EI_OSABI
] = get_elf_backend_data (abfd
)->elf_osabi
;
4954 i_ehdrp
->e_ident
[EI_ABIVERSION
] = 1;
4959 elfNN_hpux_backend_section_from_bfd_section (bfd
*abfd ATTRIBUTE_UNUSED
,
4960 asection
*sec
, int *retval
)
4962 if (bfd_is_com_section (sec
))
4964 *retval
= SHN_IA_64_ANSI_COMMON
;
4971 elfNN_hpux_backend_symbol_processing (bfd
*abfd ATTRIBUTE_UNUSED
,
4974 elf_symbol_type
*elfsym
= (elf_symbol_type
*) asym
;
4976 switch (elfsym
->internal_elf_sym
.st_shndx
)
4978 case SHN_IA_64_ANSI_COMMON
:
4979 asym
->section
= bfd_com_section_ptr
;
4980 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
4981 asym
->flags
&= ~BSF_GLOBAL
;
4987 ignore_errors (const char *fmt ATTRIBUTE_UNUSED
, ...)
4991 #define TARGET_LITTLE_SYM ia64_elfNN_le_vec
4992 #define TARGET_LITTLE_NAME "elfNN-ia64-little"
4993 #define TARGET_BIG_SYM ia64_elfNN_be_vec
4994 #define TARGET_BIG_NAME "elfNN-ia64-big"
4995 #define ELF_ARCH bfd_arch_ia64
4996 #define ELF_TARGET_ID IA64_ELF_DATA
4997 #define ELF_MACHINE_CODE EM_IA_64
4998 #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
4999 #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
5000 #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
5001 #define ELF_COMMONPAGESIZE 0x4000 /* 16KB */
5003 #define elf_backend_section_from_shdr \
5004 elfNN_ia64_section_from_shdr
5005 #define elf_backend_section_flags \
5006 elfNN_ia64_section_flags
5007 #define elf_backend_fake_sections \
5008 elfNN_ia64_fake_sections
5009 #define elf_backend_final_write_processing \
5010 elfNN_ia64_final_write_processing
5011 #define elf_backend_add_symbol_hook \
5012 elfNN_ia64_add_symbol_hook
5013 #define elf_backend_additional_program_headers \
5014 elfNN_ia64_additional_program_headers
5015 #define elf_backend_modify_segment_map \
5016 elfNN_ia64_modify_segment_map
5017 #define elf_backend_modify_headers \
5018 elfNN_ia64_modify_headers
5019 #define elf_info_to_howto \
5020 elfNN_ia64_info_to_howto
5022 #define bfd_elfNN_bfd_reloc_type_lookup \
5023 ia64_elf_reloc_type_lookup
5024 #define bfd_elfNN_bfd_reloc_name_lookup \
5025 ia64_elf_reloc_name_lookup
5026 #define bfd_elfNN_bfd_is_local_label_name \
5027 elfNN_ia64_is_local_label_name
5028 #define bfd_elfNN_bfd_relax_section \
5029 elfNN_ia64_relax_section
5031 #define elf_backend_object_p \
5034 /* Stuff for the BFD linker: */
5035 #define bfd_elfNN_bfd_link_hash_table_create \
5036 elfNN_ia64_hash_table_create
5037 #define elf_backend_create_dynamic_sections \
5038 elfNN_ia64_create_dynamic_sections
5039 #define elf_backend_check_relocs \
5040 elfNN_ia64_check_relocs
5041 #define elf_backend_adjust_dynamic_symbol \
5042 elfNN_ia64_adjust_dynamic_symbol
5043 #define elf_backend_size_dynamic_sections \
5044 elfNN_ia64_size_dynamic_sections
5045 #define elf_backend_omit_section_dynsym \
5046 _bfd_elf_omit_section_dynsym_all
5047 #define elf_backend_relocate_section \
5048 elfNN_ia64_relocate_section
5049 #define elf_backend_finish_dynamic_symbol \
5050 elfNN_ia64_finish_dynamic_symbol
5051 #define elf_backend_finish_dynamic_sections \
5052 elfNN_ia64_finish_dynamic_sections
5053 #define bfd_elfNN_bfd_final_link \
5054 elfNN_ia64_final_link
5056 #define bfd_elfNN_bfd_merge_private_bfd_data \
5057 elfNN_ia64_merge_private_bfd_data
5058 #define bfd_elfNN_bfd_set_private_flags \
5059 elfNN_ia64_set_private_flags
5060 #define bfd_elfNN_bfd_print_private_bfd_data \
5061 elfNN_ia64_print_private_bfd_data
5063 #define elf_backend_plt_readonly 1
5064 #define elf_backend_can_gc_sections 1
5065 #define elf_backend_want_plt_sym 0
5066 #define elf_backend_plt_alignment 5
5067 #define elf_backend_got_header_size 0
5068 #define elf_backend_want_got_plt 1
5069 #define elf_backend_may_use_rel_p 1
5070 #define elf_backend_may_use_rela_p 1
5071 #define elf_backend_default_use_rela_p 1
5072 #define elf_backend_want_dynbss 0
5073 #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
5074 #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
5075 #define elf_backend_fixup_symbol _bfd_elf_link_hash_fixup_symbol
5076 #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
5077 #define elf_backend_rela_normal 1
5078 #define elf_backend_dtrel_excludes_plt 1
5079 #define elf_backend_special_sections elfNN_ia64_special_sections
5080 #define elf_backend_default_execstack 0
5082 /* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with
5083 SHF_LINK_ORDER. But it doesn't set the sh_link or sh_info fields.
5084 We don't want to flood users with so many error messages. We turn
5085 off the warning for now. It will be turned on later when the Intel
5086 compiler is fixed. */
5087 #define elf_backend_link_order_error_handler ignore_errors
5089 #include "elfNN-target.h"
5091 /* HPUX-specific vectors. */
5093 #undef TARGET_LITTLE_SYM
5094 #undef TARGET_LITTLE_NAME
5095 #undef TARGET_BIG_SYM
5096 #define TARGET_BIG_SYM ia64_elfNN_hpux_be_vec
5097 #undef TARGET_BIG_NAME
5098 #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
5100 /* These are HP-UX specific functions. */
5102 #undef elf_backend_init_file_header
5103 #define elf_backend_init_file_header elfNN_hpux_init_file_header
5105 #undef elf_backend_section_from_bfd_section
5106 #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
5108 #undef elf_backend_symbol_processing
5109 #define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
5111 #undef elf_backend_want_p_paddr_set_to_zero
5112 #define elf_backend_want_p_paddr_set_to_zero 1
5114 #undef ELF_COMMONPAGESIZE
5116 #define ELF_OSABI ELFOSABI_HPUX
5119 #define elfNN_bed elfNN_ia64_hpux_bed
5121 #include "elfNN-target.h"