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",
1068 | SEC_LINKER_CREATED
));
1074 *valp
= sym
->st_size
;
1080 /* Return the number of additional phdrs we will need. */
1083 elfNN_ia64_additional_program_headers (bfd
*abfd
,
1084 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
1089 /* See if we need a PT_IA_64_ARCHEXT segment. */
1090 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1091 if (s
&& (s
->flags
& SEC_LOAD
))
1094 /* Count how many PT_IA_64_UNWIND segments we need. */
1095 for (s
= abfd
->sections
; s
; s
= s
->next
)
1096 if (is_unwind_section_name (abfd
, s
->name
) && (s
->flags
& SEC_LOAD
))
1103 elfNN_ia64_modify_segment_map (bfd
*abfd
,
1104 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
1106 struct elf_segment_map
*m
, **pm
;
1107 Elf_Internal_Shdr
*hdr
;
1110 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1111 all PT_LOAD segments. */
1112 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1113 if (s
&& (s
->flags
& SEC_LOAD
))
1115 for (m
= elf_seg_map (abfd
); m
!= NULL
; m
= m
->next
)
1116 if (m
->p_type
== PT_IA_64_ARCHEXT
)
1120 m
= ((struct elf_segment_map
*)
1121 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1125 m
->p_type
= PT_IA_64_ARCHEXT
;
1129 /* We want to put it after the PHDR and INTERP segments. */
1130 pm
= &elf_seg_map (abfd
);
1132 && ((*pm
)->p_type
== PT_PHDR
1133 || (*pm
)->p_type
== PT_INTERP
))
1141 /* Install PT_IA_64_UNWIND segments, if needed. */
1142 for (s
= abfd
->sections
; s
; s
= s
->next
)
1144 hdr
= &elf_section_data (s
)->this_hdr
;
1145 if (hdr
->sh_type
!= SHT_IA_64_UNWIND
)
1148 if (s
&& (s
->flags
& SEC_LOAD
))
1150 for (m
= elf_seg_map (abfd
); m
!= NULL
; m
= m
->next
)
1151 if (m
->p_type
== PT_IA_64_UNWIND
)
1155 /* Look through all sections in the unwind segment
1156 for a match since there may be multiple sections
1158 for (i
= m
->count
- 1; i
>= 0; --i
)
1159 if (m
->sections
[i
] == s
)
1168 m
= ((struct elf_segment_map
*)
1169 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1173 m
->p_type
= PT_IA_64_UNWIND
;
1178 /* We want to put it last. */
1179 pm
= &elf_seg_map (abfd
);
1190 /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1191 the input sections for each output section in the segment and testing
1192 for SHF_IA_64_NORECOV on each. */
1195 elfNN_ia64_modify_headers (bfd
*abfd
, struct bfd_link_info
*info
)
1197 struct elf_obj_tdata
*tdata
= elf_tdata (abfd
);
1198 struct elf_segment_map
*m
;
1199 Elf_Internal_Phdr
*p
;
1201 for (p
= tdata
->phdr
, m
= elf_seg_map (abfd
); m
!= NULL
; m
= m
->next
, p
++)
1202 if (m
->p_type
== PT_LOAD
)
1205 for (i
= m
->count
- 1; i
>= 0; --i
)
1207 struct bfd_link_order
*order
= m
->sections
[i
]->map_head
.link_order
;
1209 while (order
!= NULL
)
1211 if (order
->type
== bfd_indirect_link_order
)
1213 asection
*is
= order
->u
.indirect
.section
;
1214 bfd_vma flags
= elf_section_data(is
)->this_hdr
.sh_flags
;
1215 if (flags
& SHF_IA_64_NORECOV
)
1217 p
->p_flags
|= PF_IA_64_NORECOV
;
1221 order
= order
->next
;
1227 return _bfd_elf_modify_headers (abfd
, info
);
1230 /* According to the Tahoe assembler spec, all labels starting with a
1234 elfNN_ia64_is_local_label_name (bfd
*abfd ATTRIBUTE_UNUSED
,
1237 return name
[0] == '.';
1240 /* Should we do dynamic things to this symbol? */
1243 elfNN_ia64_dynamic_symbol_p (struct elf_link_hash_entry
*h
,
1244 struct bfd_link_info
*info
, int r_type
)
1246 bfd_boolean ignore_protected
1247 = ((r_type
& 0xf8) == 0x40 /* FPTR relocs */
1248 || (r_type
& 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1250 return _bfd_elf_dynamic_symbol_p (h
, info
, ignore_protected
);
1253 static struct bfd_hash_entry
*
1254 elfNN_ia64_new_elf_hash_entry (struct bfd_hash_entry
*entry
,
1255 struct bfd_hash_table
*table
,
1258 struct elfNN_ia64_link_hash_entry
*ret
;
1259 ret
= (struct elfNN_ia64_link_hash_entry
*) entry
;
1261 /* Allocate the structure if it has not already been allocated by a
1264 ret
= bfd_hash_allocate (table
, sizeof (*ret
));
1269 /* Call the allocation method of the superclass. */
1270 ret
= ((struct elfNN_ia64_link_hash_entry
*)
1271 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
1276 ret
->sorted_count
= 0;
1278 return (struct bfd_hash_entry
*) ret
;
1282 elfNN_ia64_hash_copy_indirect (struct bfd_link_info
*info
,
1283 struct elf_link_hash_entry
*xdir
,
1284 struct elf_link_hash_entry
*xind
)
1286 struct elfNN_ia64_link_hash_entry
*dir
, *ind
;
1288 dir
= (struct elfNN_ia64_link_hash_entry
*) xdir
;
1289 ind
= (struct elfNN_ia64_link_hash_entry
*) xind
;
1291 /* Copy down any references that we may have already seen to the
1292 symbol which just became indirect. */
1294 if (dir
->root
.versioned
!= versioned_hidden
)
1295 dir
->root
.ref_dynamic
|= ind
->root
.ref_dynamic
;
1296 dir
->root
.ref_regular
|= ind
->root
.ref_regular
;
1297 dir
->root
.ref_regular_nonweak
|= ind
->root
.ref_regular_nonweak
;
1298 dir
->root
.needs_plt
|= ind
->root
.needs_plt
;
1300 if (ind
->root
.root
.type
!= bfd_link_hash_indirect
)
1303 /* Copy over the got and plt data. This would have been done
1306 if (ind
->info
!= NULL
)
1308 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1313 dir
->info
= ind
->info
;
1314 dir
->count
= ind
->count
;
1315 dir
->sorted_count
= ind
->sorted_count
;
1316 dir
->size
= ind
->size
;
1320 ind
->sorted_count
= 0;
1323 /* Fix up the dyn_sym_info pointers to the global symbol. */
1324 for (count
= dir
->count
, dyn_i
= dir
->info
;
1327 dyn_i
->h
= &dir
->root
;
1330 /* Copy over the dynindx. */
1332 if (ind
->root
.dynindx
!= -1)
1334 if (dir
->root
.dynindx
!= -1)
1335 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
1336 dir
->root
.dynstr_index
);
1337 dir
->root
.dynindx
= ind
->root
.dynindx
;
1338 dir
->root
.dynstr_index
= ind
->root
.dynstr_index
;
1339 ind
->root
.dynindx
= -1;
1340 ind
->root
.dynstr_index
= 0;
1345 elfNN_ia64_hash_hide_symbol (struct bfd_link_info
*info
,
1346 struct elf_link_hash_entry
*xh
,
1347 bfd_boolean force_local
)
1349 struct elfNN_ia64_link_hash_entry
*h
;
1350 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1353 h
= (struct elfNN_ia64_link_hash_entry
*)xh
;
1355 _bfd_elf_link_hash_hide_symbol (info
, &h
->root
, force_local
);
1357 for (count
= h
->count
, dyn_i
= h
->info
;
1361 dyn_i
->want_plt2
= 0;
1362 dyn_i
->want_plt
= 0;
1366 /* Compute a hash of a local hash entry. */
1369 elfNN_ia64_local_htab_hash (const void *ptr
)
1371 struct elfNN_ia64_local_hash_entry
*entry
1372 = (struct elfNN_ia64_local_hash_entry
*) ptr
;
1374 return ELF_LOCAL_SYMBOL_HASH (entry
->id
, entry
->r_sym
);
1377 /* Compare local hash entries. */
1380 elfNN_ia64_local_htab_eq (const void *ptr1
, const void *ptr2
)
1382 struct elfNN_ia64_local_hash_entry
*entry1
1383 = (struct elfNN_ia64_local_hash_entry
*) ptr1
;
1384 struct elfNN_ia64_local_hash_entry
*entry2
1385 = (struct elfNN_ia64_local_hash_entry
*) ptr2
;
1387 return entry1
->id
== entry2
->id
&& entry1
->r_sym
== entry2
->r_sym
;
1390 /* Free the global elfNN_ia64_dyn_sym_info array. */
1393 elfNN_ia64_global_dyn_info_free (void **xentry
,
1394 void * unused ATTRIBUTE_UNUSED
)
1396 struct elfNN_ia64_link_hash_entry
*entry
1397 = (struct elfNN_ia64_link_hash_entry
*) xentry
;
1402 entry
->sorted_count
= 0;
1408 /* Free the local elfNN_ia64_dyn_sym_info array. */
1411 elfNN_ia64_local_dyn_info_free (void **slot
,
1412 void * unused ATTRIBUTE_UNUSED
)
1414 struct elfNN_ia64_local_hash_entry
*entry
1415 = (struct elfNN_ia64_local_hash_entry
*) *slot
;
1420 entry
->sorted_count
= 0;
1426 /* Destroy IA-64 linker hash table. */
1429 elfNN_ia64_link_hash_table_free (bfd
*obfd
)
1431 struct elfNN_ia64_link_hash_table
*ia64_info
1432 = (struct elfNN_ia64_link_hash_table
*) obfd
->link
.hash
;
1433 if (ia64_info
->loc_hash_table
)
1435 htab_traverse (ia64_info
->loc_hash_table
,
1436 elfNN_ia64_local_dyn_info_free
, NULL
);
1437 htab_delete (ia64_info
->loc_hash_table
);
1439 if (ia64_info
->loc_hash_memory
)
1440 objalloc_free ((struct objalloc
*) ia64_info
->loc_hash_memory
);
1441 elf_link_hash_traverse (&ia64_info
->root
,
1442 elfNN_ia64_global_dyn_info_free
, NULL
);
1443 _bfd_elf_link_hash_table_free (obfd
);
1446 /* Create the derived linker hash table. The IA-64 ELF port uses this
1447 derived hash table to keep information specific to the IA-64 ElF
1448 linker (without using static variables). */
1450 static struct bfd_link_hash_table
*
1451 elfNN_ia64_hash_table_create (bfd
*abfd
)
1453 struct elfNN_ia64_link_hash_table
*ret
;
1455 ret
= bfd_zmalloc ((bfd_size_type
) sizeof (*ret
));
1459 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
1460 elfNN_ia64_new_elf_hash_entry
,
1461 sizeof (struct elfNN_ia64_link_hash_entry
),
1468 ret
->loc_hash_table
= htab_try_create (1024, elfNN_ia64_local_htab_hash
,
1469 elfNN_ia64_local_htab_eq
, NULL
);
1470 ret
->loc_hash_memory
= objalloc_create ();
1471 if (!ret
->loc_hash_table
|| !ret
->loc_hash_memory
)
1473 elfNN_ia64_link_hash_table_free (abfd
);
1476 ret
->root
.root
.hash_table_free
= elfNN_ia64_link_hash_table_free
;
1477 ret
->root
.dt_pltgot_required
= TRUE
;
1479 return &ret
->root
.root
;
1482 /* Traverse both local and global hash tables. */
1484 struct elfNN_ia64_dyn_sym_traverse_data
1486 bfd_boolean (*func
) (struct elfNN_ia64_dyn_sym_info
*, void *);
1491 elfNN_ia64_global_dyn_sym_thunk (struct bfd_hash_entry
*xentry
,
1494 struct elfNN_ia64_link_hash_entry
*entry
1495 = (struct elfNN_ia64_link_hash_entry
*) xentry
;
1496 struct elfNN_ia64_dyn_sym_traverse_data
*data
1497 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1498 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1501 for (count
= entry
->count
, dyn_i
= entry
->info
;
1504 if (! (*data
->func
) (dyn_i
, data
->data
))
1510 elfNN_ia64_local_dyn_sym_thunk (void **slot
, void * xdata
)
1512 struct elfNN_ia64_local_hash_entry
*entry
1513 = (struct elfNN_ia64_local_hash_entry
*) *slot
;
1514 struct elfNN_ia64_dyn_sym_traverse_data
*data
1515 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1516 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1519 for (count
= entry
->count
, dyn_i
= entry
->info
;
1522 if (! (*data
->func
) (dyn_i
, data
->data
))
1528 elfNN_ia64_dyn_sym_traverse (struct elfNN_ia64_link_hash_table
*ia64_info
,
1529 bfd_boolean (*func
) (struct elfNN_ia64_dyn_sym_info
*, void *),
1532 struct elfNN_ia64_dyn_sym_traverse_data xdata
;
1537 elf_link_hash_traverse (&ia64_info
->root
,
1538 elfNN_ia64_global_dyn_sym_thunk
, &xdata
);
1539 htab_traverse (ia64_info
->loc_hash_table
,
1540 elfNN_ia64_local_dyn_sym_thunk
, &xdata
);
1544 elfNN_ia64_create_dynamic_sections (bfd
*abfd
,
1545 struct bfd_link_info
*info
)
1547 struct elfNN_ia64_link_hash_table
*ia64_info
;
1550 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
1553 ia64_info
= elfNN_ia64_hash_table (info
);
1554 if (ia64_info
== NULL
)
1558 flagword flags
= bfd_section_flags (ia64_info
->root
.sgot
);
1559 bfd_set_section_flags (ia64_info
->root
.sgot
, SEC_SMALL_DATA
| flags
);
1560 /* The .got section is always aligned at 8 bytes. */
1561 if (!bfd_set_section_alignment (ia64_info
->root
.sgot
, 3))
1565 if (!get_pltoff (abfd
, info
, ia64_info
))
1568 s
= bfd_make_section_anyway_with_flags (abfd
, ".rela.IA_64.pltoff",
1569 (SEC_ALLOC
| SEC_LOAD
1572 | SEC_LINKER_CREATED
1575 || !bfd_set_section_alignment (s
, LOG_SECTION_ALIGN
))
1577 ia64_info
->rel_pltoff_sec
= s
;
1582 /* Find and/or create a hash entry for local symbol. */
1583 static struct elfNN_ia64_local_hash_entry
*
1584 get_local_sym_hash (struct elfNN_ia64_link_hash_table
*ia64_info
,
1585 bfd
*abfd
, const Elf_Internal_Rela
*rel
,
1588 struct elfNN_ia64_local_hash_entry e
, *ret
;
1589 asection
*sec
= abfd
->sections
;
1590 hashval_t h
= ELF_LOCAL_SYMBOL_HASH (sec
->id
,
1591 ELFNN_R_SYM (rel
->r_info
));
1595 e
.r_sym
= ELFNN_R_SYM (rel
->r_info
);
1596 slot
= htab_find_slot_with_hash (ia64_info
->loc_hash_table
, &e
, h
,
1597 create
? INSERT
: NO_INSERT
);
1603 return (struct elfNN_ia64_local_hash_entry
*) *slot
;
1605 ret
= (struct elfNN_ia64_local_hash_entry
*)
1606 objalloc_alloc ((struct objalloc
*) ia64_info
->loc_hash_memory
,
1607 sizeof (struct elfNN_ia64_local_hash_entry
));
1610 memset (ret
, 0, sizeof (*ret
));
1612 ret
->r_sym
= ELFNN_R_SYM (rel
->r_info
);
1618 /* Used to sort elfNN_ia64_dyn_sym_info array. */
1621 addend_compare (const void *xp
, const void *yp
)
1623 const struct elfNN_ia64_dyn_sym_info
*x
1624 = (const struct elfNN_ia64_dyn_sym_info
*) xp
;
1625 const struct elfNN_ia64_dyn_sym_info
*y
1626 = (const struct elfNN_ia64_dyn_sym_info
*) yp
;
1628 return x
->addend
< y
->addend
? -1 : x
->addend
> y
->addend
? 1 : 0;
1631 /* Sort elfNN_ia64_dyn_sym_info array and remove duplicates. */
1634 sort_dyn_sym_info (struct elfNN_ia64_dyn_sym_info
*info
,
1637 bfd_vma curr
, prev
, got_offset
;
1638 unsigned int i
, kept
, dupes
, diff
, dest
, src
, len
;
1640 qsort (info
, count
, sizeof (*info
), addend_compare
);
1642 /* Find the first duplicate. */
1643 prev
= info
[0].addend
;
1644 got_offset
= info
[0].got_offset
;
1645 for (i
= 1; i
< count
; i
++)
1647 curr
= info
[i
].addend
;
1650 /* For duplicates, make sure that GOT_OFFSET is valid. */
1651 if (got_offset
== (bfd_vma
) -1)
1652 got_offset
= info
[i
].got_offset
;
1655 got_offset
= info
[i
].got_offset
;
1659 /* We may move a block of elements to here. */
1662 /* Remove duplicates. */
1667 /* For duplicates, make sure that the kept one has a valid
1670 if (got_offset
!= (bfd_vma
) -1)
1671 info
[kept
].got_offset
= got_offset
;
1673 curr
= info
[i
].addend
;
1674 got_offset
= info
[i
].got_offset
;
1676 /* Move a block of elements whose first one is different from
1680 for (src
= i
+ 1; src
< count
; src
++)
1682 if (info
[src
].addend
!= curr
)
1684 /* For duplicates, make sure that GOT_OFFSET is
1686 if (got_offset
== (bfd_vma
) -1)
1687 got_offset
= info
[src
].got_offset
;
1690 /* Make sure that the kept one has a valid got_offset. */
1691 if (got_offset
!= (bfd_vma
) -1)
1692 info
[kept
].got_offset
= got_offset
;
1700 /* Find the next duplicate. SRC will be kept. */
1701 prev
= info
[src
].addend
;
1702 got_offset
= info
[src
].got_offset
;
1703 for (dupes
= src
+ 1; dupes
< count
; dupes
++)
1705 curr
= info
[dupes
].addend
;
1708 /* Make sure that got_offset is valid. */
1709 if (got_offset
== (bfd_vma
) -1)
1710 got_offset
= info
[dupes
].got_offset
;
1712 /* For duplicates, make sure that the kept one has
1713 a valid got_offset. */
1714 if (got_offset
!= (bfd_vma
) -1)
1715 info
[dupes
- 1].got_offset
= got_offset
;
1718 got_offset
= info
[dupes
].got_offset
;
1722 /* How much to move. */
1726 if (len
== 1 && dupes
< count
)
1728 /* If we only move 1 element, we combine it with the next
1729 one. There must be at least a duplicate. Find the
1730 next different one. */
1731 for (diff
= dupes
+ 1, src
++; diff
< count
; diff
++, src
++)
1733 if (info
[diff
].addend
!= curr
)
1735 /* Make sure that got_offset is valid. */
1736 if (got_offset
== (bfd_vma
) -1)
1737 got_offset
= info
[diff
].got_offset
;
1740 /* Makre sure that the last duplicated one has an valid
1742 BFD_ASSERT (curr
== prev
);
1743 if (got_offset
!= (bfd_vma
) -1)
1744 info
[diff
- 1].got_offset
= got_offset
;
1748 /* Find the next duplicate. Track the current valid
1750 prev
= info
[diff
].addend
;
1751 got_offset
= info
[diff
].got_offset
;
1752 for (dupes
= diff
+ 1; dupes
< count
; dupes
++)
1754 curr
= info
[dupes
].addend
;
1757 /* For duplicates, make sure that GOT_OFFSET
1759 if (got_offset
== (bfd_vma
) -1)
1760 got_offset
= info
[dupes
].got_offset
;
1763 got_offset
= info
[dupes
].got_offset
;
1768 len
= diff
- src
+ 1;
1773 memmove (&info
[dest
], &info
[src
], len
* sizeof (*info
));
1782 /* When we get here, either there is no duplicate at all or
1783 the only duplicate is the last element. */
1786 /* If the last element is a duplicate, make sure that the
1787 kept one has a valid got_offset. We also update count. */
1788 if (got_offset
!= (bfd_vma
) -1)
1789 info
[dest
- 1].got_offset
= got_offset
;
1797 /* Find and/or create a descriptor for dynamic symbol info. This will
1798 vary based on global or local symbol, and the addend to the reloc.
1800 We don't sort when inserting. Also, we sort and eliminate
1801 duplicates if there is an unsorted section. Typically, this will
1802 only happen once, because we do all insertions before lookups. We
1803 then use bsearch to do a lookup. This also allows lookups to be
1804 fast. So we have fast insertion (O(log N) due to duplicate check),
1805 fast lookup (O(log N)) and one sort (O(N log N) expected time).
1806 Previously, all lookups were O(N) because of the use of the linked
1807 list and also all insertions were O(N) because of the check for
1808 duplicates. There are some complications here because the array
1809 size grows occasionally, which may add an O(N) factor, but this
1810 should be rare. Also, we free the excess array allocation, which
1811 requires a copy which is O(N), but this only happens once. */
1813 static struct elfNN_ia64_dyn_sym_info
*
1814 get_dyn_sym_info (struct elfNN_ia64_link_hash_table
*ia64_info
,
1815 struct elf_link_hash_entry
*h
, bfd
*abfd
,
1816 const Elf_Internal_Rela
*rel
, bfd_boolean create
)
1818 struct elfNN_ia64_dyn_sym_info
**info_p
, *info
, *dyn_i
, key
;
1819 unsigned int *count_p
, *sorted_count_p
, *size_p
;
1820 unsigned int count
, sorted_count
, size
;
1821 bfd_vma addend
= rel
? rel
->r_addend
: 0;
1826 struct elfNN_ia64_link_hash_entry
*global_h
;
1828 global_h
= (struct elfNN_ia64_link_hash_entry
*) h
;
1829 info_p
= &global_h
->info
;
1830 count_p
= &global_h
->count
;
1831 sorted_count_p
= &global_h
->sorted_count
;
1832 size_p
= &global_h
->size
;
1836 struct elfNN_ia64_local_hash_entry
*loc_h
;
1838 loc_h
= get_local_sym_hash (ia64_info
, abfd
, rel
, create
);
1841 BFD_ASSERT (!create
);
1845 info_p
= &loc_h
->info
;
1846 count_p
= &loc_h
->count
;
1847 sorted_count_p
= &loc_h
->sorted_count
;
1848 size_p
= &loc_h
->size
;
1852 sorted_count
= *sorted_count_p
;
1857 /* When we create the array, we don't check for duplicates,
1858 except in the previously sorted section if one exists, and
1859 against the last inserted entry. This allows insertions to
1865 /* Try bsearch first on the sorted section. */
1866 key
.addend
= addend
;
1867 dyn_i
= bsearch (&key
, info
, sorted_count
,
1868 sizeof (*info
), addend_compare
);
1876 /* Do a quick check for the last inserted entry. */
1877 dyn_i
= info
+ count
- 1;
1878 if (dyn_i
->addend
== addend
)
1886 /* It is the very first element. We create the array of size
1889 amt
= size
* sizeof (*info
);
1890 info
= bfd_malloc (amt
);
1892 else if (size
<= count
)
1894 /* We double the array size every time when we reach the
1897 amt
= size
* sizeof (*info
);
1898 info
= bfd_realloc (info
, amt
);
1909 /* Append the new one to the array. */
1910 dyn_i
= info
+ count
;
1911 memset (dyn_i
, 0, sizeof (*dyn_i
));
1912 dyn_i
->got_offset
= (bfd_vma
) -1;
1913 dyn_i
->addend
= addend
;
1915 /* We increment count only since the new ones are unsorted and
1916 may have duplicate. */
1921 /* It is a lookup without insertion. Sort array if part of the
1922 array isn't sorted. */
1923 if (count
!= sorted_count
)
1925 count
= sort_dyn_sym_info (info
, count
);
1927 *sorted_count_p
= count
;
1930 /* Free unused memory. */
1933 amt
= count
* sizeof (*info
);
1934 info
= bfd_malloc (amt
);
1937 memcpy (info
, *info_p
, amt
);
1944 key
.addend
= addend
;
1945 dyn_i
= bsearch (&key
, info
, count
,
1946 sizeof (*info
), addend_compare
);
1953 get_got (bfd
*abfd
, struct bfd_link_info
*info
,
1954 struct elfNN_ia64_link_hash_table
*ia64_info
)
1959 got
= ia64_info
->root
.sgot
;
1964 dynobj
= ia64_info
->root
.dynobj
;
1966 ia64_info
->root
.dynobj
= dynobj
= abfd
;
1967 if (!_bfd_elf_create_got_section (dynobj
, info
))
1970 got
= ia64_info
->root
.sgot
;
1972 /* The .got section is always aligned at 8 bytes. */
1973 if (!bfd_set_section_alignment (got
, 3))
1976 flags
= bfd_section_flags (got
);
1977 if (!bfd_set_section_flags (got
, SEC_SMALL_DATA
| flags
))
1984 /* Create function descriptor section (.opd). This section is called .opd
1985 because it contains "official procedure descriptors". The "official"
1986 refers to the fact that these descriptors are used when taking the address
1987 of a procedure, thus ensuring a unique address for each procedure. */
1990 get_fptr (bfd
*abfd
, struct bfd_link_info
*info
,
1991 struct elfNN_ia64_link_hash_table
*ia64_info
)
1996 fptr
= ia64_info
->fptr_sec
;
1999 dynobj
= ia64_info
->root
.dynobj
;
2001 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2003 fptr
= bfd_make_section_anyway_with_flags (dynobj
, ".opd",
2008 | (bfd_link_pie (info
)
2010 | SEC_LINKER_CREATED
));
2012 || !bfd_set_section_alignment (fptr
, 4))
2018 ia64_info
->fptr_sec
= fptr
;
2020 if (bfd_link_pie (info
))
2023 fptr_rel
= bfd_make_section_anyway_with_flags (dynobj
, ".rela.opd",
2024 (SEC_ALLOC
| SEC_LOAD
2027 | SEC_LINKER_CREATED
2029 if (fptr_rel
== NULL
2030 || !bfd_set_section_alignment (fptr_rel
, LOG_SECTION_ALIGN
))
2036 ia64_info
->rel_fptr_sec
= fptr_rel
;
2044 get_pltoff (bfd
*abfd
, struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2045 struct elfNN_ia64_link_hash_table
*ia64_info
)
2050 pltoff
= ia64_info
->pltoff_sec
;
2053 dynobj
= ia64_info
->root
.dynobj
;
2055 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2057 pltoff
= bfd_make_section_anyway_with_flags (dynobj
,
2058 ELF_STRING_ia64_pltoff
,
2064 | SEC_LINKER_CREATED
));
2066 || !bfd_set_section_alignment (pltoff
, 4))
2072 ia64_info
->pltoff_sec
= pltoff
;
2079 get_reloc_section (bfd
*abfd
,
2080 struct elfNN_ia64_link_hash_table
*ia64_info
,
2081 asection
*sec
, bfd_boolean create
)
2083 const char *srel_name
;
2087 srel_name
= (bfd_elf_string_from_elf_section
2088 (abfd
, elf_elfheader(abfd
)->e_shstrndx
,
2089 _bfd_elf_single_rel_hdr (sec
)->sh_name
));
2090 if (srel_name
== NULL
)
2093 dynobj
= ia64_info
->root
.dynobj
;
2095 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2097 srel
= bfd_get_linker_section (dynobj
, srel_name
);
2098 if (srel
== NULL
&& create
)
2100 srel
= bfd_make_section_anyway_with_flags (dynobj
, srel_name
,
2101 (SEC_ALLOC
| SEC_LOAD
2104 | SEC_LINKER_CREATED
2107 || !bfd_set_section_alignment (srel
, LOG_SECTION_ALIGN
))
2115 count_dyn_reloc (bfd
*abfd
, struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2116 asection
*srel
, int type
, bfd_boolean reltext
)
2118 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2120 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2121 if (rent
->srel
== srel
&& rent
->type
== type
)
2126 rent
= ((struct elfNN_ia64_dyn_reloc_entry
*)
2127 bfd_alloc (abfd
, (bfd_size_type
) sizeof (*rent
)));
2131 rent
->next
= dyn_i
->reloc_entries
;
2135 dyn_i
->reloc_entries
= rent
;
2137 rent
->reltext
= reltext
;
2144 elfNN_ia64_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
2146 const Elf_Internal_Rela
*relocs
)
2148 struct elfNN_ia64_link_hash_table
*ia64_info
;
2149 const Elf_Internal_Rela
*relend
;
2150 Elf_Internal_Shdr
*symtab_hdr
;
2151 const Elf_Internal_Rela
*rel
;
2152 asection
*got
, *fptr
, *srel
, *pltoff
;
2161 NEED_LTOFF_FPTR
= 128,
2167 struct elf_link_hash_entry
*h
;
2168 unsigned long r_symndx
;
2169 bfd_boolean maybe_dynamic
;
2171 if (bfd_link_relocatable (info
))
2174 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
2175 ia64_info
= elfNN_ia64_hash_table (info
);
2176 if (ia64_info
== NULL
)
2179 got
= fptr
= srel
= pltoff
= NULL
;
2181 relend
= relocs
+ sec
->reloc_count
;
2183 /* We scan relocations first to create dynamic relocation arrays. We
2184 modified get_dyn_sym_info to allow fast insertion and support fast
2185 lookup in the next loop. */
2186 for (rel
= relocs
; rel
< relend
; ++rel
)
2188 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
2189 if (r_symndx
>= symtab_hdr
->sh_info
)
2191 long indx
= r_symndx
- symtab_hdr
->sh_info
;
2192 h
= elf_sym_hashes (abfd
)[indx
];
2193 while (h
->root
.type
== bfd_link_hash_indirect
2194 || h
->root
.type
== bfd_link_hash_warning
)
2195 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2200 if (h
&& UNDEFWEAK_NO_DYNAMIC_RELOC (info
, h
))
2203 /* We can only get preliminary data on whether a symbol is
2204 locally or externally defined, as not all of the input files
2205 have yet been processed. Do something with what we know, as
2206 this may help reduce memory usage and processing time later. */
2207 maybe_dynamic
= (h
&& ((!bfd_link_executable (info
)
2208 && (!SYMBOLIC_BIND (info
, h
)
2209 || info
->unresolved_syms_in_shared_libs
== RM_IGNORE
))
2211 || h
->root
.type
== bfd_link_hash_defweak
));
2214 switch (ELFNN_R_TYPE (rel
->r_info
))
2216 case R_IA64_TPREL64MSB
:
2217 case R_IA64_TPREL64LSB
:
2218 if (bfd_link_pic (info
) || maybe_dynamic
)
2219 need_entry
= NEED_DYNREL
;
2222 case R_IA64_LTOFF_TPREL22
:
2223 need_entry
= NEED_TPREL
;
2224 if (bfd_link_pic (info
))
2225 info
->flags
|= DF_STATIC_TLS
;
2228 case R_IA64_DTPREL32MSB
:
2229 case R_IA64_DTPREL32LSB
:
2230 case R_IA64_DTPREL64MSB
:
2231 case R_IA64_DTPREL64LSB
:
2232 if (bfd_link_pic (info
) || maybe_dynamic
)
2233 need_entry
= NEED_DYNREL
;
2236 case R_IA64_LTOFF_DTPREL22
:
2237 need_entry
= NEED_DTPREL
;
2240 case R_IA64_DTPMOD64MSB
:
2241 case R_IA64_DTPMOD64LSB
:
2242 if (bfd_link_pic (info
) || maybe_dynamic
)
2243 need_entry
= NEED_DYNREL
;
2246 case R_IA64_LTOFF_DTPMOD22
:
2247 need_entry
= NEED_DTPMOD
;
2250 case R_IA64_LTOFF_FPTR22
:
2251 case R_IA64_LTOFF_FPTR64I
:
2252 case R_IA64_LTOFF_FPTR32MSB
:
2253 case R_IA64_LTOFF_FPTR32LSB
:
2254 case R_IA64_LTOFF_FPTR64MSB
:
2255 case R_IA64_LTOFF_FPTR64LSB
:
2256 need_entry
= NEED_FPTR
| NEED_GOT
| NEED_LTOFF_FPTR
;
2259 case R_IA64_FPTR64I
:
2260 case R_IA64_FPTR32MSB
:
2261 case R_IA64_FPTR32LSB
:
2262 case R_IA64_FPTR64MSB
:
2263 case R_IA64_FPTR64LSB
:
2264 if (bfd_link_pic (info
) || h
)
2265 need_entry
= NEED_FPTR
| NEED_DYNREL
;
2267 need_entry
= NEED_FPTR
;
2270 case R_IA64_LTOFF22
:
2271 case R_IA64_LTOFF64I
:
2272 need_entry
= NEED_GOT
;
2275 case R_IA64_LTOFF22X
:
2276 need_entry
= NEED_GOTX
;
2279 case R_IA64_PLTOFF22
:
2280 case R_IA64_PLTOFF64I
:
2281 case R_IA64_PLTOFF64MSB
:
2282 case R_IA64_PLTOFF64LSB
:
2283 need_entry
= NEED_PLTOFF
;
2287 need_entry
|= NEED_MIN_PLT
;
2291 (*info
->callbacks
->warning
)
2292 (info
, _("@pltoff reloc against local symbol"), 0,
2293 abfd
, 0, (bfd_vma
) 0);
2297 case R_IA64_PCREL21B
:
2298 case R_IA64_PCREL60B
:
2299 /* Depending on where this symbol is defined, we may or may not
2300 need a full plt entry. Only skip if we know we'll not need
2301 the entry -- static or symbolic, and the symbol definition
2302 has already been seen. */
2303 if (maybe_dynamic
&& rel
->r_addend
== 0)
2304 need_entry
= NEED_FULL_PLT
;
2310 case R_IA64_DIR32MSB
:
2311 case R_IA64_DIR32LSB
:
2312 case R_IA64_DIR64MSB
:
2313 case R_IA64_DIR64LSB
:
2314 /* Shared objects will always need at least a REL relocation. */
2315 if (bfd_link_pic (info
) || maybe_dynamic
)
2316 need_entry
= NEED_DYNREL
;
2319 case R_IA64_IPLTMSB
:
2320 case R_IA64_IPLTLSB
:
2321 /* Shared objects will always need at least a REL relocation. */
2322 if (bfd_link_pic (info
) || maybe_dynamic
)
2323 need_entry
= NEED_DYNREL
;
2326 case R_IA64_PCREL22
:
2327 case R_IA64_PCREL64I
:
2328 case R_IA64_PCREL32MSB
:
2329 case R_IA64_PCREL32LSB
:
2330 case R_IA64_PCREL64MSB
:
2331 case R_IA64_PCREL64LSB
:
2333 need_entry
= NEED_DYNREL
;
2340 if ((need_entry
& NEED_FPTR
) != 0
2343 (*info
->callbacks
->warning
)
2344 (info
, _("non-zero addend in @fptr reloc"), 0,
2345 abfd
, 0, (bfd_vma
) 0);
2348 if (get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, TRUE
) == NULL
)
2352 /* Now, we only do lookup without insertion, which is very fast
2353 with the modified get_dyn_sym_info. */
2354 for (rel
= relocs
; rel
< relend
; ++rel
)
2356 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2357 int dynrel_type
= R_IA64_NONE
;
2359 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
2360 if (r_symndx
>= symtab_hdr
->sh_info
)
2362 /* We're dealing with a global symbol -- find its hash entry
2363 and mark it as being referenced. */
2364 long indx
= r_symndx
- symtab_hdr
->sh_info
;
2365 h
= elf_sym_hashes (abfd
)[indx
];
2366 while (h
->root
.type
== bfd_link_hash_indirect
2367 || h
->root
.type
== bfd_link_hash_warning
)
2368 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2370 /* PR15323, ref flags aren't set for references in the same
2377 if (h
&& UNDEFWEAK_NO_DYNAMIC_RELOC (info
, h
))
2380 /* We can only get preliminary data on whether a symbol is
2381 locally or externally defined, as not all of the input files
2382 have yet been processed. Do something with what we know, as
2383 this may help reduce memory usage and processing time later. */
2384 maybe_dynamic
= (h
&& ((!bfd_link_executable (info
)
2385 && (!SYMBOLIC_BIND (info
, h
)
2386 || info
->unresolved_syms_in_shared_libs
== RM_IGNORE
))
2388 || h
->root
.type
== bfd_link_hash_defweak
));
2391 switch (ELFNN_R_TYPE (rel
->r_info
))
2393 case R_IA64_TPREL64MSB
:
2394 case R_IA64_TPREL64LSB
:
2395 if (bfd_link_pic (info
) || maybe_dynamic
)
2396 need_entry
= NEED_DYNREL
;
2397 dynrel_type
= R_IA64_TPREL64LSB
;
2398 if (bfd_link_pic (info
))
2399 info
->flags
|= DF_STATIC_TLS
;
2402 case R_IA64_LTOFF_TPREL22
:
2403 need_entry
= NEED_TPREL
;
2404 if (bfd_link_pic (info
))
2405 info
->flags
|= DF_STATIC_TLS
;
2408 case R_IA64_DTPREL32MSB
:
2409 case R_IA64_DTPREL32LSB
:
2410 case R_IA64_DTPREL64MSB
:
2411 case R_IA64_DTPREL64LSB
:
2412 if (bfd_link_pic (info
) || maybe_dynamic
)
2413 need_entry
= NEED_DYNREL
;
2414 dynrel_type
= R_IA64_DTPRELNNLSB
;
2417 case R_IA64_LTOFF_DTPREL22
:
2418 need_entry
= NEED_DTPREL
;
2421 case R_IA64_DTPMOD64MSB
:
2422 case R_IA64_DTPMOD64LSB
:
2423 if (bfd_link_pic (info
) || maybe_dynamic
)
2424 need_entry
= NEED_DYNREL
;
2425 dynrel_type
= R_IA64_DTPMOD64LSB
;
2428 case R_IA64_LTOFF_DTPMOD22
:
2429 need_entry
= NEED_DTPMOD
;
2432 case R_IA64_LTOFF_FPTR22
:
2433 case R_IA64_LTOFF_FPTR64I
:
2434 case R_IA64_LTOFF_FPTR32MSB
:
2435 case R_IA64_LTOFF_FPTR32LSB
:
2436 case R_IA64_LTOFF_FPTR64MSB
:
2437 case R_IA64_LTOFF_FPTR64LSB
:
2438 need_entry
= NEED_FPTR
| NEED_GOT
| NEED_LTOFF_FPTR
;
2441 case R_IA64_FPTR64I
:
2442 case R_IA64_FPTR32MSB
:
2443 case R_IA64_FPTR32LSB
:
2444 case R_IA64_FPTR64MSB
:
2445 case R_IA64_FPTR64LSB
:
2446 if (bfd_link_pic (info
) || h
)
2447 need_entry
= NEED_FPTR
| NEED_DYNREL
;
2449 need_entry
= NEED_FPTR
;
2450 dynrel_type
= R_IA64_FPTRNNLSB
;
2453 case R_IA64_LTOFF22
:
2454 case R_IA64_LTOFF64I
:
2455 need_entry
= NEED_GOT
;
2458 case R_IA64_LTOFF22X
:
2459 need_entry
= NEED_GOTX
;
2462 case R_IA64_PLTOFF22
:
2463 case R_IA64_PLTOFF64I
:
2464 case R_IA64_PLTOFF64MSB
:
2465 case R_IA64_PLTOFF64LSB
:
2466 need_entry
= NEED_PLTOFF
;
2470 need_entry
|= NEED_MIN_PLT
;
2474 case R_IA64_PCREL21B
:
2475 case R_IA64_PCREL60B
:
2476 /* Depending on where this symbol is defined, we may or may not
2477 need a full plt entry. Only skip if we know we'll not need
2478 the entry -- static or symbolic, and the symbol definition
2479 has already been seen. */
2480 if (maybe_dynamic
&& rel
->r_addend
== 0)
2481 need_entry
= NEED_FULL_PLT
;
2487 case R_IA64_DIR32MSB
:
2488 case R_IA64_DIR32LSB
:
2489 case R_IA64_DIR64MSB
:
2490 case R_IA64_DIR64LSB
:
2491 /* Shared objects will always need at least a REL relocation. */
2492 if (bfd_link_pic (info
) || maybe_dynamic
)
2493 need_entry
= NEED_DYNREL
;
2494 dynrel_type
= R_IA64_DIRNNLSB
;
2497 case R_IA64_IPLTMSB
:
2498 case R_IA64_IPLTLSB
:
2499 /* Shared objects will always need at least a REL relocation. */
2500 if (bfd_link_pic (info
) || maybe_dynamic
)
2501 need_entry
= NEED_DYNREL
;
2502 dynrel_type
= R_IA64_IPLTLSB
;
2505 case R_IA64_PCREL22
:
2506 case R_IA64_PCREL64I
:
2507 case R_IA64_PCREL32MSB
:
2508 case R_IA64_PCREL32LSB
:
2509 case R_IA64_PCREL64MSB
:
2510 case R_IA64_PCREL64LSB
:
2512 need_entry
= NEED_DYNREL
;
2513 dynrel_type
= R_IA64_PCRELNNLSB
;
2520 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, FALSE
);
2522 /* Record whether or not this is a local symbol. */
2525 /* Create what's needed. */
2526 if (need_entry
& (NEED_GOT
| NEED_GOTX
| NEED_TPREL
2527 | NEED_DTPMOD
| NEED_DTPREL
))
2531 got
= get_got (abfd
, info
, ia64_info
);
2535 if (need_entry
& NEED_GOT
)
2536 dyn_i
->want_got
= 1;
2537 if (need_entry
& NEED_GOTX
)
2538 dyn_i
->want_gotx
= 1;
2539 if (need_entry
& NEED_TPREL
)
2540 dyn_i
->want_tprel
= 1;
2541 if (need_entry
& NEED_DTPMOD
)
2542 dyn_i
->want_dtpmod
= 1;
2543 if (need_entry
& NEED_DTPREL
)
2544 dyn_i
->want_dtprel
= 1;
2546 if (need_entry
& NEED_FPTR
)
2550 fptr
= get_fptr (abfd
, info
, ia64_info
);
2555 /* FPTRs for shared libraries are allocated by the dynamic
2556 linker. Make sure this local symbol will appear in the
2557 dynamic symbol table. */
2558 if (!h
&& bfd_link_pic (info
))
2560 if (! (bfd_elf_link_record_local_dynamic_symbol
2561 (info
, abfd
, (long) r_symndx
)))
2565 dyn_i
->want_fptr
= 1;
2567 if (need_entry
& NEED_LTOFF_FPTR
)
2568 dyn_i
->want_ltoff_fptr
= 1;
2569 if (need_entry
& (NEED_MIN_PLT
| NEED_FULL_PLT
))
2571 if (!ia64_info
->root
.dynobj
)
2572 ia64_info
->root
.dynobj
= abfd
;
2574 dyn_i
->want_plt
= 1;
2576 if (need_entry
& NEED_FULL_PLT
)
2577 dyn_i
->want_plt2
= 1;
2578 if (need_entry
& NEED_PLTOFF
)
2580 /* This is needed here, in case @pltoff is used in a non-shared
2584 pltoff
= get_pltoff (abfd
, info
, ia64_info
);
2589 dyn_i
->want_pltoff
= 1;
2591 if ((need_entry
& NEED_DYNREL
) && (sec
->flags
& SEC_ALLOC
))
2595 srel
= get_reloc_section (abfd
, ia64_info
, sec
, TRUE
);
2599 if (!count_dyn_reloc (abfd
, dyn_i
, srel
, dynrel_type
,
2600 (sec
->flags
& SEC_READONLY
) != 0))
2608 /* For cleanliness, and potentially faster dynamic loading, allocate
2609 external GOT entries first. */
2612 allocate_global_data_got (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2615 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2617 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2618 && ! dyn_i
->want_fptr
2619 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2621 dyn_i
->got_offset
= x
->ofs
;
2624 if (dyn_i
->want_tprel
)
2626 dyn_i
->tprel_offset
= x
->ofs
;
2629 if (dyn_i
->want_dtpmod
)
2631 if (elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2633 dyn_i
->dtpmod_offset
= x
->ofs
;
2638 struct elfNN_ia64_link_hash_table
*ia64_info
;
2640 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2641 if (ia64_info
== NULL
)
2644 if (ia64_info
->self_dtpmod_offset
== (bfd_vma
) -1)
2646 ia64_info
->self_dtpmod_offset
= x
->ofs
;
2649 dyn_i
->dtpmod_offset
= ia64_info
->self_dtpmod_offset
;
2652 if (dyn_i
->want_dtprel
)
2654 dyn_i
->dtprel_offset
= x
->ofs
;
2660 /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2663 allocate_global_fptr_got (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2666 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2670 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, R_IA64_FPTRNNLSB
))
2672 dyn_i
->got_offset
= x
->ofs
;
2678 /* Lastly, allocate all the GOT entries for local data. */
2681 allocate_local_got (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2684 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2686 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2687 && !elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2689 dyn_i
->got_offset
= x
->ofs
;
2695 /* Search for the index of a global symbol in it's defining object file. */
2698 global_sym_index (struct elf_link_hash_entry
*h
)
2700 struct elf_link_hash_entry
**p
;
2703 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
2704 || h
->root
.type
== bfd_link_hash_defweak
);
2706 obj
= h
->root
.u
.def
.section
->owner
;
2707 for (p
= elf_sym_hashes (obj
); *p
!= h
; ++p
)
2710 return p
- elf_sym_hashes (obj
) + elf_tdata (obj
)->symtab_hdr
.sh_info
;
2713 /* Allocate function descriptors. We can do these for every function
2714 in a main executable that is not exported. */
2717 allocate_fptr (struct elfNN_ia64_dyn_sym_info
*dyn_i
, void * data
)
2719 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2721 if (dyn_i
->want_fptr
)
2723 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2726 while (h
->root
.type
== bfd_link_hash_indirect
2727 || h
->root
.type
== bfd_link_hash_warning
)
2728 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2730 if (!bfd_link_executable (x
->info
)
2732 || (ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2733 && !UNDEFWEAK_NO_DYNAMIC_RELOC (x
->info
, h
))
2734 || (h
->root
.type
!= bfd_link_hash_undefweak
2735 && h
->root
.type
!= bfd_link_hash_undefined
)))
2737 if (h
&& h
->dynindx
== -1)
2739 BFD_ASSERT ((h
->root
.type
== bfd_link_hash_defined
)
2740 || (h
->root
.type
== bfd_link_hash_defweak
));
2742 if (!bfd_elf_link_record_local_dynamic_symbol
2743 (x
->info
, h
->root
.u
.def
.section
->owner
,
2744 global_sym_index (h
)))
2748 dyn_i
->want_fptr
= 0;
2750 else if (h
== NULL
|| h
->dynindx
== -1)
2752 dyn_i
->fptr_offset
= x
->ofs
;
2756 dyn_i
->want_fptr
= 0;
2761 /* Allocate all the minimal PLT entries. */
2764 allocate_plt_entries (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2767 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2769 if (dyn_i
->want_plt
)
2771 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2774 while (h
->root
.type
== bfd_link_hash_indirect
2775 || h
->root
.type
== bfd_link_hash_warning
)
2776 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2778 /* ??? Versioned symbols seem to lose NEEDS_PLT. */
2779 if (elfNN_ia64_dynamic_symbol_p (h
, x
->info
, 0))
2781 bfd_size_type offset
= x
->ofs
;
2783 offset
= PLT_HEADER_SIZE
;
2784 dyn_i
->plt_offset
= offset
;
2785 x
->ofs
= offset
+ PLT_MIN_ENTRY_SIZE
;
2787 dyn_i
->want_pltoff
= 1;
2791 dyn_i
->want_plt
= 0;
2792 dyn_i
->want_plt2
= 0;
2798 /* Allocate all the full PLT entries. */
2801 allocate_plt2_entries (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2804 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2806 if (dyn_i
->want_plt2
)
2808 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2809 bfd_size_type ofs
= x
->ofs
;
2811 dyn_i
->plt2_offset
= ofs
;
2812 x
->ofs
= ofs
+ PLT_FULL_ENTRY_SIZE
;
2814 while (h
->root
.type
== bfd_link_hash_indirect
2815 || h
->root
.type
== bfd_link_hash_warning
)
2816 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2817 dyn_i
->h
->plt
.offset
= ofs
;
2822 /* Allocate all the PLTOFF entries requested by relocations and
2823 plt entries. We can't share space with allocated FPTR entries,
2824 because the latter are not necessarily addressable by the GP.
2825 ??? Relaxation might be able to determine that they are. */
2828 allocate_pltoff_entries (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2831 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2833 if (dyn_i
->want_pltoff
)
2835 dyn_i
->pltoff_offset
= x
->ofs
;
2841 /* Allocate dynamic relocations for those symbols that turned out
2845 allocate_dynrel_entries (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2848 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2849 struct elfNN_ia64_link_hash_table
*ia64_info
;
2850 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2851 bfd_boolean dynamic_symbol
, shared
, resolved_zero
;
2853 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2854 if (ia64_info
== NULL
)
2857 /* Note that this can't be used in relation to FPTR relocs below. */
2858 dynamic_symbol
= elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0);
2860 shared
= bfd_link_pic (x
->info
);
2861 resolved_zero
= (dyn_i
->h
2862 && UNDEFWEAK_NO_DYNAMIC_RELOC (x
->info
,
2865 /* Take care of the GOT and PLT relocations. */
2868 && (dynamic_symbol
|| shared
)
2869 && (dyn_i
->want_got
|| dyn_i
->want_gotx
))
2870 || (dyn_i
->want_ltoff_fptr
2872 && dyn_i
->h
->dynindx
!= -1))
2874 if (!dyn_i
->want_ltoff_fptr
2875 || !bfd_link_pie (x
->info
)
2877 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2878 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
2880 if ((dynamic_symbol
|| shared
) && dyn_i
->want_tprel
)
2881 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
2882 if (dynamic_symbol
&& dyn_i
->want_dtpmod
)
2883 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
2884 if (dynamic_symbol
&& dyn_i
->want_dtprel
)
2885 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
2890 if (ia64_info
->rel_fptr_sec
&& dyn_i
->want_fptr
)
2892 if (dyn_i
->h
== NULL
|| dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2893 ia64_info
->rel_fptr_sec
->size
+= sizeof (ElfNN_External_Rela
);
2896 if (!resolved_zero
&& dyn_i
->want_pltoff
)
2898 bfd_size_type t
= 0;
2900 /* Dynamic symbols get one IPLT relocation. Local symbols in
2901 shared libraries get two REL relocations. Local symbols in
2902 main applications get nothing. */
2904 t
= sizeof (ElfNN_External_Rela
);
2906 t
= 2 * sizeof (ElfNN_External_Rela
);
2908 ia64_info
->rel_pltoff_sec
->size
+= t
;
2911 /* Take care of the normal data relocations. */
2913 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2915 int count
= rent
->count
;
2919 case R_IA64_FPTR32LSB
:
2920 case R_IA64_FPTR64LSB
:
2921 /* Allocate one iff !want_fptr and not PIE, which by this point
2922 will be true only if we're actually allocating one statically
2923 in the main executable. Position independent executables
2924 need a relative reloc. */
2925 if (dyn_i
->want_fptr
&& !bfd_link_pie (x
->info
))
2928 case R_IA64_PCREL32LSB
:
2929 case R_IA64_PCREL64LSB
:
2930 if (!dynamic_symbol
)
2933 case R_IA64_DIR32LSB
:
2934 case R_IA64_DIR64LSB
:
2935 if (!dynamic_symbol
&& !shared
)
2938 case R_IA64_IPLTLSB
:
2939 if (!dynamic_symbol
&& !shared
)
2941 /* Use two REL relocations for IPLT relocations
2942 against local symbols. */
2943 if (!dynamic_symbol
)
2946 case R_IA64_DTPREL32LSB
:
2947 case R_IA64_TPREL64LSB
:
2948 case R_IA64_DTPREL64LSB
:
2949 case R_IA64_DTPMOD64LSB
:
2955 x
->info
->flags
|= DF_TEXTREL
;
2956 rent
->srel
->size
+= sizeof (ElfNN_External_Rela
) * count
;
2963 elfNN_ia64_adjust_dynamic_symbol (struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2964 struct elf_link_hash_entry
*h
)
2966 /* ??? Undefined symbols with PLT entries should be re-defined
2967 to be the PLT entry. */
2969 /* If this is a weak symbol, and there is a real definition, the
2970 processor independent code will have arranged for us to see the
2971 real definition first, and we can just use the same value. */
2972 if (h
->is_weakalias
)
2974 struct elf_link_hash_entry
*def
= weakdef (h
);
2975 BFD_ASSERT (def
->root
.type
== bfd_link_hash_defined
);
2976 h
->root
.u
.def
.section
= def
->root
.u
.def
.section
;
2977 h
->root
.u
.def
.value
= def
->root
.u
.def
.value
;
2981 /* If this is a reference to a symbol defined by a dynamic object which
2982 is not a function, we might allocate the symbol in our .dynbss section
2983 and allocate a COPY dynamic relocation.
2985 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
2992 elfNN_ia64_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2993 struct bfd_link_info
*info
)
2995 struct elfNN_ia64_allocate_data data
;
2996 struct elfNN_ia64_link_hash_table
*ia64_info
;
3000 ia64_info
= elfNN_ia64_hash_table (info
);
3001 if (ia64_info
== NULL
)
3003 dynobj
= ia64_info
->root
.dynobj
;
3004 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
3005 BFD_ASSERT(dynobj
!= NULL
);
3008 /* Set the contents of the .interp section to the interpreter. */
3009 if (ia64_info
->root
.dynamic_sections_created
3010 && bfd_link_executable (info
) && !info
->nointerp
)
3012 sec
= bfd_get_linker_section (dynobj
, ".interp");
3013 BFD_ASSERT (sec
!= NULL
);
3014 sec
->contents
= (bfd_byte
*) ELF_DYNAMIC_INTERPRETER
;
3015 sec
->size
= strlen (ELF_DYNAMIC_INTERPRETER
) + 1;
3018 /* Allocate the GOT entries. */
3020 if (ia64_info
->root
.sgot
)
3023 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
3024 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
3025 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
3026 ia64_info
->root
.sgot
->size
= data
.ofs
;
3029 /* Allocate the FPTR entries. */
3031 if (ia64_info
->fptr_sec
)
3034 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_fptr
, &data
);
3035 ia64_info
->fptr_sec
->size
= data
.ofs
;
3038 /* Now that we've seen all of the input files, we can decide which
3039 symbols need plt entries. Allocate the minimal PLT entries first.
3040 We do this even though dynamic_sections_created may be FALSE, because
3041 this has the side-effect of clearing want_plt and want_plt2. */
3044 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt_entries
, &data
);
3046 ia64_info
->minplt_entries
= 0;
3049 ia64_info
->minplt_entries
3050 = (data
.ofs
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
3053 /* Align the pointer for the plt2 entries. */
3054 data
.ofs
= (data
.ofs
+ 31) & (bfd_vma
) -32;
3056 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt2_entries
, &data
);
3057 if (data
.ofs
!= 0 || ia64_info
->root
.dynamic_sections_created
)
3059 /* FIXME: we always reserve the memory for dynamic linker even if
3060 there are no PLT entries since dynamic linker may assume the
3061 reserved memory always exists. */
3063 BFD_ASSERT (ia64_info
->root
.dynamic_sections_created
);
3065 ia64_info
->root
.splt
->size
= data
.ofs
;
3067 /* If we've got a .plt, we need some extra memory for the dynamic
3068 linker. We stuff these in .got.plt. */
3069 ia64_info
->root
.sgotplt
->size
= 8 * PLT_RESERVED_WORDS
;
3072 /* Allocate the PLTOFF entries. */
3074 if (ia64_info
->pltoff_sec
)
3077 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_pltoff_entries
, &data
);
3078 ia64_info
->pltoff_sec
->size
= data
.ofs
;
3081 if (ia64_info
->root
.dynamic_sections_created
)
3083 /* Allocate space for the dynamic relocations that turned out to be
3086 if (bfd_link_pic (info
) && ia64_info
->self_dtpmod_offset
!= (bfd_vma
) -1)
3087 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
3088 data
.only_got
= FALSE
;
3089 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_dynrel_entries
, &data
);
3092 /* We have now determined the sizes of the various dynamic sections.
3093 Allocate memory for them. */
3094 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
3098 if (!(sec
->flags
& SEC_LINKER_CREATED
))
3101 /* If we don't need this section, strip it from the output file.
3102 There were several sections primarily related to dynamic
3103 linking that must be create before the linker maps input
3104 sections to output sections. The linker does that before
3105 bfd_elf_size_dynamic_sections is called, and it is that
3106 function which decides whether anything needs to go into
3109 strip
= (sec
->size
== 0);
3111 if (sec
== ia64_info
->root
.sgot
)
3113 else if (sec
== ia64_info
->root
.srelgot
)
3116 ia64_info
->root
.srelgot
= NULL
;
3118 /* We use the reloc_count field as a counter if we need to
3119 copy relocs into the output file. */
3120 sec
->reloc_count
= 0;
3122 else if (sec
== ia64_info
->fptr_sec
)
3125 ia64_info
->fptr_sec
= NULL
;
3127 else if (sec
== ia64_info
->rel_fptr_sec
)
3130 ia64_info
->rel_fptr_sec
= NULL
;
3132 /* We use the reloc_count field as a counter if we need to
3133 copy relocs into the output file. */
3134 sec
->reloc_count
= 0;
3136 else if (sec
== ia64_info
->root
.splt
)
3139 ia64_info
->root
.splt
= NULL
;
3141 else if (sec
== ia64_info
->pltoff_sec
)
3144 ia64_info
->pltoff_sec
= NULL
;
3146 else if (sec
== ia64_info
->rel_pltoff_sec
)
3149 ia64_info
->rel_pltoff_sec
= NULL
;
3152 ia64_info
->root
.dt_jmprel_required
= TRUE
;
3153 /* We use the reloc_count field as a counter if we need to
3154 copy relocs into the output file. */
3155 sec
->reloc_count
= 0;
3162 /* It's OK to base decisions on the section name, because none
3163 of the dynobj section names depend upon the input files. */
3164 name
= bfd_section_name (sec
);
3166 if (strcmp (name
, ".got.plt") == 0)
3168 else if (CONST_STRNEQ (name
, ".rel"))
3172 /* We use the reloc_count field as a counter if we need to
3173 copy relocs into the output file. */
3174 sec
->reloc_count
= 0;
3182 sec
->flags
|= SEC_EXCLUDE
;
3185 /* Allocate memory for the section contents. */
3186 sec
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, sec
->size
);
3187 if (sec
->contents
== NULL
&& sec
->size
!= 0)
3192 if (ia64_info
->root
.dynamic_sections_created
)
3194 /* Add some entries to the .dynamic section. We fill in the values
3195 later (in finish_dynamic_sections) but we must add the entries now
3196 so that we get the correct size for the .dynamic section. */
3198 #define add_dynamic_entry(TAG, VAL) \
3199 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3201 if (!_bfd_elf_add_dynamic_tags (output_bfd
, info
, TRUE
))
3204 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE
, 0))
3208 /* ??? Perhaps force __gp local. */
3214 elfNN_ia64_install_dyn_reloc (bfd
*abfd
, struct bfd_link_info
*info
,
3215 asection
*sec
, asection
*srel
,
3216 bfd_vma offset
, unsigned int type
,
3217 long dynindx
, bfd_vma addend
)
3219 Elf_Internal_Rela outrel
;
3222 BFD_ASSERT (dynindx
!= -1);
3223 outrel
.r_info
= ELFNN_R_INFO (dynindx
, type
);
3224 outrel
.r_addend
= addend
;
3225 outrel
.r_offset
= _bfd_elf_section_offset (abfd
, info
, sec
, offset
);
3226 if (outrel
.r_offset
>= (bfd_vma
) -2)
3228 /* Run for the hills. We shouldn't be outputting a relocation
3229 for this. So do what everyone else does and output a no-op. */
3230 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
3231 outrel
.r_addend
= 0;
3232 outrel
.r_offset
= 0;
3235 outrel
.r_offset
+= sec
->output_section
->vma
+ sec
->output_offset
;
3237 loc
= srel
->contents
;
3238 loc
+= srel
->reloc_count
++ * sizeof (ElfNN_External_Rela
);
3239 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3240 BFD_ASSERT (sizeof (ElfNN_External_Rela
) * srel
->reloc_count
<= srel
->size
);
3243 /* Store an entry for target address TARGET_ADDR in the linkage table
3244 and return the gp-relative address of the linkage table entry. */
3247 set_got_entry (bfd
*abfd
, struct bfd_link_info
*info
,
3248 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
3249 long dynindx
, bfd_vma addend
, bfd_vma value
,
3250 unsigned int dyn_r_type
)
3252 struct elfNN_ia64_link_hash_table
*ia64_info
;
3257 ia64_info
= elfNN_ia64_hash_table (info
);
3258 if (ia64_info
== NULL
)
3261 got_sec
= ia64_info
->root
.sgot
;
3265 case R_IA64_TPREL64LSB
:
3266 done
= dyn_i
->tprel_done
;
3267 dyn_i
->tprel_done
= TRUE
;
3268 got_offset
= dyn_i
->tprel_offset
;
3270 case R_IA64_DTPMOD64LSB
:
3271 if (dyn_i
->dtpmod_offset
!= ia64_info
->self_dtpmod_offset
)
3273 done
= dyn_i
->dtpmod_done
;
3274 dyn_i
->dtpmod_done
= TRUE
;
3278 done
= ia64_info
->self_dtpmod_done
;
3279 ia64_info
->self_dtpmod_done
= TRUE
;
3282 got_offset
= dyn_i
->dtpmod_offset
;
3284 case R_IA64_DTPREL32LSB
:
3285 case R_IA64_DTPREL64LSB
:
3286 done
= dyn_i
->dtprel_done
;
3287 dyn_i
->dtprel_done
= TRUE
;
3288 got_offset
= dyn_i
->dtprel_offset
;
3291 done
= dyn_i
->got_done
;
3292 dyn_i
->got_done
= TRUE
;
3293 got_offset
= dyn_i
->got_offset
;
3297 BFD_ASSERT ((got_offset
& 7) == 0);
3301 /* Store the target address in the linkage table entry. */
3302 bfd_put_64 (abfd
, value
, got_sec
->contents
+ got_offset
);
3304 /* Install a dynamic relocation if needed. */
3305 if (((bfd_link_pic (info
)
3307 || (ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3308 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info
, dyn_i
->h
))
3309 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
3310 && dyn_r_type
!= R_IA64_DTPREL32LSB
3311 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3312 || elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, info
, dyn_r_type
)
3314 && (dyn_r_type
== R_IA64_FPTR32LSB
3315 || dyn_r_type
== R_IA64_FPTR64LSB
)))
3316 && (!dyn_i
->want_ltoff_fptr
3317 || !bfd_link_pie (info
)
3319 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3322 && dyn_r_type
!= R_IA64_TPREL64LSB
3323 && dyn_r_type
!= R_IA64_DTPMOD64LSB
3324 && dyn_r_type
!= R_IA64_DTPREL32LSB
3325 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3327 dyn_r_type
= R_IA64_RELNNLSB
;
3332 if (bfd_big_endian (abfd
))
3336 case R_IA64_REL32LSB
:
3337 dyn_r_type
= R_IA64_REL32MSB
;
3339 case R_IA64_DIR32LSB
:
3340 dyn_r_type
= R_IA64_DIR32MSB
;
3342 case R_IA64_FPTR32LSB
:
3343 dyn_r_type
= R_IA64_FPTR32MSB
;
3345 case R_IA64_DTPREL32LSB
:
3346 dyn_r_type
= R_IA64_DTPREL32MSB
;
3348 case R_IA64_REL64LSB
:
3349 dyn_r_type
= R_IA64_REL64MSB
;
3351 case R_IA64_DIR64LSB
:
3352 dyn_r_type
= R_IA64_DIR64MSB
;
3354 case R_IA64_FPTR64LSB
:
3355 dyn_r_type
= R_IA64_FPTR64MSB
;
3357 case R_IA64_TPREL64LSB
:
3358 dyn_r_type
= R_IA64_TPREL64MSB
;
3360 case R_IA64_DTPMOD64LSB
:
3361 dyn_r_type
= R_IA64_DTPMOD64MSB
;
3363 case R_IA64_DTPREL64LSB
:
3364 dyn_r_type
= R_IA64_DTPREL64MSB
;
3372 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, got_sec
,
3373 ia64_info
->root
.srelgot
,
3374 got_offset
, dyn_r_type
,
3379 /* Return the address of the linkage table entry. */
3380 value
= (got_sec
->output_section
->vma
3381 + got_sec
->output_offset
3387 /* Fill in a function descriptor consisting of the function's code
3388 address and its global pointer. Return the descriptor's address. */
3391 set_fptr_entry (bfd
*abfd
, struct bfd_link_info
*info
,
3392 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
3395 struct elfNN_ia64_link_hash_table
*ia64_info
;
3398 ia64_info
= elfNN_ia64_hash_table (info
);
3399 if (ia64_info
== NULL
)
3402 fptr_sec
= ia64_info
->fptr_sec
;
3404 if (!dyn_i
->fptr_done
)
3406 dyn_i
->fptr_done
= 1;
3408 /* Fill in the function descriptor. */
3409 bfd_put_64 (abfd
, value
, fptr_sec
->contents
+ dyn_i
->fptr_offset
);
3410 bfd_put_64 (abfd
, _bfd_get_gp_value (abfd
),
3411 fptr_sec
->contents
+ dyn_i
->fptr_offset
+ 8);
3412 if (ia64_info
->rel_fptr_sec
)
3414 Elf_Internal_Rela outrel
;
3417 if (bfd_little_endian (abfd
))
3418 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTLSB
);
3420 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTMSB
);
3421 outrel
.r_addend
= value
;
3422 outrel
.r_offset
= (fptr_sec
->output_section
->vma
3423 + fptr_sec
->output_offset
3424 + dyn_i
->fptr_offset
);
3425 loc
= ia64_info
->rel_fptr_sec
->contents
;
3426 loc
+= ia64_info
->rel_fptr_sec
->reloc_count
++
3427 * sizeof (ElfNN_External_Rela
);
3428 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3432 /* Return the descriptor's address. */
3433 value
= (fptr_sec
->output_section
->vma
3434 + fptr_sec
->output_offset
3435 + dyn_i
->fptr_offset
);
3440 /* Fill in a PLTOFF entry consisting of the function's code address
3441 and its global pointer. Return the descriptor's address. */
3444 set_pltoff_entry (bfd
*abfd
, struct bfd_link_info
*info
,
3445 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
3446 bfd_vma value
, bfd_boolean is_plt
)
3448 struct elfNN_ia64_link_hash_table
*ia64_info
;
3449 asection
*pltoff_sec
;
3451 ia64_info
= elfNN_ia64_hash_table (info
);
3452 if (ia64_info
== NULL
)
3455 pltoff_sec
= ia64_info
->pltoff_sec
;
3457 /* Don't do anything if this symbol uses a real PLT entry. In
3458 that case, we'll fill this in during finish_dynamic_symbol. */
3459 if ((! dyn_i
->want_plt
|| is_plt
)
3460 && !dyn_i
->pltoff_done
)
3462 bfd_vma gp
= _bfd_get_gp_value (abfd
);
3464 /* Fill in the function descriptor. */
3465 bfd_put_64 (abfd
, value
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
);
3466 bfd_put_64 (abfd
, gp
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
+ 8);
3468 /* Install dynamic relocations if needed. */
3470 && bfd_link_pic (info
)
3472 || (ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3473 && !UNDEFWEAK_NO_DYNAMIC_RELOC (info
, dyn_i
->h
))
3474 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3476 unsigned int dyn_r_type
;
3478 if (bfd_big_endian (abfd
))
3479 dyn_r_type
= R_IA64_RELNNMSB
;
3481 dyn_r_type
= R_IA64_RELNNLSB
;
3483 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3484 ia64_info
->rel_pltoff_sec
,
3485 dyn_i
->pltoff_offset
,
3486 dyn_r_type
, 0, value
);
3487 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3488 ia64_info
->rel_pltoff_sec
,
3489 dyn_i
->pltoff_offset
+ ARCH_SIZE
/ 8,
3493 dyn_i
->pltoff_done
= 1;
3496 /* Return the descriptor's address. */
3497 value
= (pltoff_sec
->output_section
->vma
3498 + pltoff_sec
->output_offset
3499 + dyn_i
->pltoff_offset
);
3504 /* Return the base VMA address which should be subtracted from real addresses
3505 when resolving @tprel() relocation.
3506 Main program TLS (whose template starts at PT_TLS p_vaddr)
3507 is assigned offset round(2 * size of pointer, PT_TLS p_align). */
3510 elfNN_ia64_tprel_base (struct bfd_link_info
*info
)
3512 asection
*tls_sec
= elf_hash_table (info
)->tls_sec
;
3513 return tls_sec
->vma
- align_power ((bfd_vma
) ARCH_SIZE
/ 4,
3514 tls_sec
->alignment_power
);
3517 /* Return the base VMA address which should be subtracted from real addresses
3518 when resolving @dtprel() relocation.
3519 This is PT_TLS segment p_vaddr. */
3522 elfNN_ia64_dtprel_base (struct bfd_link_info
*info
)
3524 return elf_hash_table (info
)->tls_sec
->vma
;
3527 /* Called through qsort to sort the .IA_64.unwind section during a
3528 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3529 to the output bfd so we can do proper endianness frobbing. */
3531 static bfd
*elfNN_ia64_unwind_entry_compare_bfd
;
3534 elfNN_ia64_unwind_entry_compare (const void * a
, const void * b
)
3538 av
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, a
);
3539 bv
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, b
);
3541 return (av
< bv
? -1 : av
> bv
? 1 : 0);
3544 /* Make sure we've got ourselves a nice fat __gp value. */
3546 elfNN_ia64_choose_gp (bfd
*abfd
, struct bfd_link_info
*info
, bfd_boolean final
)
3548 bfd_vma min_vma
= (bfd_vma
) -1, max_vma
= 0;
3549 bfd_vma min_short_vma
= min_vma
, max_short_vma
= 0;
3550 struct elf_link_hash_entry
*gp
;
3553 struct elfNN_ia64_link_hash_table
*ia64_info
;
3555 ia64_info
= elfNN_ia64_hash_table (info
);
3556 if (ia64_info
== NULL
)
3559 /* Find the min and max vma of all sections marked short. Also collect
3560 min and max vma of any type, for use in selecting a nice gp. */
3561 for (os
= abfd
->sections
; os
; os
= os
->next
)
3565 if ((os
->flags
& SEC_ALLOC
) == 0)
3569 /* When this function is called from elfNN_ia64_final_link
3570 the correct value to use is os->size. When called from
3571 elfNN_ia64_relax_section we are in the middle of section
3572 sizing; some sections will already have os->size set, others
3573 will have os->size zero and os->rawsize the previous size. */
3574 hi
= os
->vma
+ (!final
&& os
->rawsize
? os
->rawsize
: os
->size
);
3582 if (os
->flags
& SEC_SMALL_DATA
)
3584 if (min_short_vma
> lo
)
3586 if (max_short_vma
< hi
)
3591 if (ia64_info
->min_short_sec
)
3594 > (ia64_info
->min_short_sec
->vma
3595 + ia64_info
->min_short_offset
))
3596 min_short_vma
= (ia64_info
->min_short_sec
->vma
3597 + ia64_info
->min_short_offset
);
3599 < (ia64_info
->max_short_sec
->vma
3600 + ia64_info
->max_short_offset
))
3601 max_short_vma
= (ia64_info
->max_short_sec
->vma
3602 + ia64_info
->max_short_offset
);
3605 /* See if the user wants to force a value. */
3606 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3610 && (gp
->root
.type
== bfd_link_hash_defined
3611 || gp
->root
.type
== bfd_link_hash_defweak
))
3613 asection
*gp_sec
= gp
->root
.u
.def
.section
;
3614 gp_val
= (gp
->root
.u
.def
.value
3615 + gp_sec
->output_section
->vma
3616 + gp_sec
->output_offset
);
3620 /* Pick a sensible value. */
3622 if (ia64_info
->min_short_sec
)
3624 bfd_vma short_range
= max_short_vma
- min_short_vma
;
3626 /* If min_short_sec is set, pick one in the middle bewteen
3627 min_short_vma and max_short_vma. */
3628 if (short_range
>= 0x400000)
3630 gp_val
= min_short_vma
+ short_range
/ 2;
3634 asection
*got_sec
= ia64_info
->root
.sgot
;
3636 /* Start with just the address of the .got. */
3638 gp_val
= got_sec
->output_section
->vma
;
3639 else if (max_short_vma
!= 0)
3640 gp_val
= min_short_vma
;
3641 else if (max_vma
- min_vma
< 0x200000)
3644 gp_val
= max_vma
- 0x200000 + 8;
3647 /* If it is possible to address the entire image, but we
3648 don't with the choice above, adjust. */
3649 if (max_vma
- min_vma
< 0x400000
3650 && (max_vma
- gp_val
>= 0x200000
3651 || gp_val
- min_vma
> 0x200000))
3652 gp_val
= min_vma
+ 0x200000;
3653 else if (max_short_vma
!= 0)
3655 /* If we don't cover all the short data, adjust. */
3656 if (max_short_vma
- gp_val
>= 0x200000)
3657 gp_val
= min_short_vma
+ 0x200000;
3659 /* If we're addressing stuff past the end, adjust back. */
3660 if (gp_val
> max_vma
)
3661 gp_val
= max_vma
- 0x200000 + 8;
3665 /* Validate whether all SHF_IA_64_SHORT sections are within
3666 range of the chosen GP. */
3668 if (max_short_vma
!= 0)
3670 if (max_short_vma
- min_short_vma
>= 0x400000)
3674 /* xgettext:c-format */
3675 (_("%pB: short data segment overflowed (%#" PRIx64
" >= 0x400000)"),
3676 abfd
, (uint64_t) (max_short_vma
- min_short_vma
));
3679 else if ((gp_val
> min_short_vma
3680 && gp_val
- min_short_vma
> 0x200000)
3681 || (gp_val
< max_short_vma
3682 && max_short_vma
- gp_val
>= 0x200000))
3685 (_("%pB: __gp does not cover short data segment"), abfd
);
3690 _bfd_set_gp_value (abfd
, gp_val
);
3696 elfNN_ia64_final_link (bfd
*abfd
, struct bfd_link_info
*info
)
3698 struct elfNN_ia64_link_hash_table
*ia64_info
;
3699 asection
*unwind_output_sec
;
3701 ia64_info
= elfNN_ia64_hash_table (info
);
3702 if (ia64_info
== NULL
)
3705 /* Make sure we've got ourselves a nice fat __gp value. */
3706 if (!bfd_link_relocatable (info
))
3709 struct elf_link_hash_entry
*gp
;
3711 /* We assume after gp is set, section size will only decrease. We
3712 need to adjust gp for it. */
3713 _bfd_set_gp_value (abfd
, 0);
3714 if (! elfNN_ia64_choose_gp (abfd
, info
, TRUE
))
3716 gp_val
= _bfd_get_gp_value (abfd
);
3718 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3722 gp
->root
.type
= bfd_link_hash_defined
;
3723 gp
->root
.u
.def
.value
= gp_val
;
3724 gp
->root
.u
.def
.section
= bfd_abs_section_ptr
;
3728 /* If we're producing a final executable, we need to sort the contents
3729 of the .IA_64.unwind section. Force this section to be relocated
3730 into memory rather than written immediately to the output file. */
3731 unwind_output_sec
= NULL
;
3732 if (!bfd_link_relocatable (info
))
3734 asection
*s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_unwind
);
3737 unwind_output_sec
= s
->output_section
;
3738 unwind_output_sec
->contents
3739 = bfd_malloc (unwind_output_sec
->size
);
3740 if (unwind_output_sec
->contents
== NULL
)
3745 /* Invoke the regular ELF backend linker to do all the work. */
3746 if (!bfd_elf_final_link (abfd
, info
))
3749 if (unwind_output_sec
)
3751 elfNN_ia64_unwind_entry_compare_bfd
= abfd
;
3752 qsort (unwind_output_sec
->contents
,
3753 (size_t) (unwind_output_sec
->size
/ 24),
3755 elfNN_ia64_unwind_entry_compare
);
3757 if (! bfd_set_section_contents (abfd
, unwind_output_sec
,
3758 unwind_output_sec
->contents
, (bfd_vma
) 0,
3759 unwind_output_sec
->size
))
3767 elfNN_ia64_relocate_section (bfd
*output_bfd
,
3768 struct bfd_link_info
*info
,
3770 asection
*input_section
,
3772 Elf_Internal_Rela
*relocs
,
3773 Elf_Internal_Sym
*local_syms
,
3774 asection
**local_sections
)
3776 struct elfNN_ia64_link_hash_table
*ia64_info
;
3777 Elf_Internal_Shdr
*symtab_hdr
;
3778 Elf_Internal_Rela
*rel
;
3779 Elf_Internal_Rela
*relend
;
3781 bfd_boolean ret_val
= TRUE
; /* for non-fatal errors */
3784 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3785 ia64_info
= elfNN_ia64_hash_table (info
);
3786 if (ia64_info
== NULL
)
3789 /* Infect various flags from the input section to the output section. */
3790 if (bfd_link_relocatable (info
))
3794 flags
= elf_section_data(input_section
)->this_hdr
.sh_flags
;
3795 flags
&= SHF_IA_64_NORECOV
;
3797 elf_section_data(input_section
->output_section
)
3798 ->this_hdr
.sh_flags
|= flags
;
3801 gp_val
= _bfd_get_gp_value (output_bfd
);
3802 srel
= get_reloc_section (input_bfd
, ia64_info
, input_section
, FALSE
);
3805 relend
= relocs
+ input_section
->reloc_count
;
3806 for (; rel
< relend
; ++rel
)
3808 struct elf_link_hash_entry
*h
;
3809 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3810 bfd_reloc_status_type r
;
3811 reloc_howto_type
*howto
;
3812 unsigned long r_symndx
;
3813 Elf_Internal_Sym
*sym
;
3814 unsigned int r_type
;
3818 bfd_boolean dynamic_symbol_p
;
3819 bfd_boolean undef_weak_ref
;
3821 r_type
= ELFNN_R_TYPE (rel
->r_info
);
3822 if (r_type
> R_IA64_MAX_RELOC_CODE
)
3824 /* xgettext:c-format */
3825 _bfd_error_handler (_("%pB: unsupported relocation type %#x"),
3826 input_bfd
, (int) r_type
);
3827 bfd_set_error (bfd_error_bad_value
);
3832 howto
= ia64_elf_lookup_howto (r_type
);
3839 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
3843 undef_weak_ref
= FALSE
;
3845 if (r_symndx
< symtab_hdr
->sh_info
)
3847 /* Reloc against local symbol. */
3849 sym
= local_syms
+ r_symndx
;
3850 sym_sec
= local_sections
[r_symndx
];
3852 value
= _bfd_elf_rela_local_sym (output_bfd
, sym
, &msec
, rel
);
3853 if (!bfd_link_relocatable (info
)
3854 && (sym_sec
->flags
& SEC_MERGE
) != 0
3855 && ELF_ST_TYPE (sym
->st_info
) == STT_SECTION
3856 && sym_sec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
3858 struct elfNN_ia64_local_hash_entry
*loc_h
;
3860 loc_h
= get_local_sym_hash (ia64_info
, input_bfd
, rel
, FALSE
);
3861 if (loc_h
&& ! loc_h
->sec_merge_done
)
3863 struct elfNN_ia64_dyn_sym_info
*dynent
;
3866 for (count
= loc_h
->count
, dynent
= loc_h
->info
;
3872 _bfd_merged_section_offset (output_bfd
, &msec
,
3873 elf_section_data (msec
)->
3877 dynent
->addend
-= sym
->st_value
;
3878 dynent
->addend
+= msec
->output_section
->vma
3879 + msec
->output_offset
3880 - sym_sec
->output_section
->vma
3881 - sym_sec
->output_offset
;
3884 /* We may have introduced duplicated entries. We need
3885 to remove them properly. */
3886 count
= sort_dyn_sym_info (loc_h
->info
, loc_h
->count
);
3887 if (count
!= loc_h
->count
)
3889 loc_h
->count
= count
;
3890 loc_h
->sorted_count
= count
;
3893 loc_h
->sec_merge_done
= 1;
3899 bfd_boolean unresolved_reloc
;
3900 bfd_boolean warned
, ignored
;
3901 struct elf_link_hash_entry
**sym_hashes
= elf_sym_hashes (input_bfd
);
3903 RELOC_FOR_GLOBAL_SYMBOL (info
, input_bfd
, input_section
, rel
,
3904 r_symndx
, symtab_hdr
, sym_hashes
,
3906 unresolved_reloc
, warned
, ignored
);
3908 if (h
->root
.type
== bfd_link_hash_undefweak
)
3909 undef_weak_ref
= TRUE
;
3910 else if (warned
|| (ignored
&& bfd_link_executable (info
)))
3914 if (sym_sec
!= NULL
&& discarded_section (sym_sec
))
3915 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
3916 rel
, 1, relend
, howto
, 0, contents
);
3918 if (bfd_link_relocatable (info
))
3921 hit_addr
= contents
+ rel
->r_offset
;
3922 value
+= rel
->r_addend
;
3923 dynamic_symbol_p
= elfNN_ia64_dynamic_symbol_p (h
, info
, r_type
);
3934 case R_IA64_DIR32MSB
:
3935 case R_IA64_DIR32LSB
:
3936 case R_IA64_DIR64MSB
:
3937 case R_IA64_DIR64LSB
:
3938 /* Install a dynamic relocation for this reloc. */
3939 if ((dynamic_symbol_p
|| bfd_link_pic (info
))
3940 && !(h
&& UNDEFWEAK_NO_DYNAMIC_RELOC (info
, h
))
3941 && r_symndx
!= STN_UNDEF
3942 && (input_section
->flags
& SEC_ALLOC
) != 0)
3944 unsigned int dyn_r_type
;
3948 BFD_ASSERT (srel
!= NULL
);
3955 /* ??? People shouldn't be doing non-pic code in
3956 shared libraries nor dynamic executables. */
3958 /* xgettext:c-format */
3959 (_("%pB: non-pic code with imm relocation against dynamic symbol `%s'"),
3961 h
? h
->root
.root
.string
3962 : bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
3971 /* If we don't need dynamic symbol lookup, find a
3972 matching RELATIVE relocation. */
3973 dyn_r_type
= r_type
;
3974 if (dynamic_symbol_p
)
3976 dynindx
= h
->dynindx
;
3977 addend
= rel
->r_addend
;
3984 case R_IA64_DIR32MSB
:
3985 dyn_r_type
= R_IA64_REL32MSB
;
3987 case R_IA64_DIR32LSB
:
3988 dyn_r_type
= R_IA64_REL32LSB
;
3990 case R_IA64_DIR64MSB
:
3991 dyn_r_type
= R_IA64_REL64MSB
;
3993 case R_IA64_DIR64LSB
:
3994 dyn_r_type
= R_IA64_REL64LSB
;
4004 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4005 srel
, rel
->r_offset
, dyn_r_type
,
4010 case R_IA64_LTV32MSB
:
4011 case R_IA64_LTV32LSB
:
4012 case R_IA64_LTV64MSB
:
4013 case R_IA64_LTV64LSB
:
4014 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4017 case R_IA64_GPREL22
:
4018 case R_IA64_GPREL64I
:
4019 case R_IA64_GPREL32MSB
:
4020 case R_IA64_GPREL32LSB
:
4021 case R_IA64_GPREL64MSB
:
4022 case R_IA64_GPREL64LSB
:
4023 if (dynamic_symbol_p
)
4026 /* xgettext:c-format */
4027 (_("%pB: @gprel relocation against dynamic symbol %s"),
4029 h
? h
->root
.root
.string
4030 : bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4036 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4039 case R_IA64_LTOFF22
:
4040 case R_IA64_LTOFF22X
:
4041 case R_IA64_LTOFF64I
:
4042 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4043 value
= set_got_entry (input_bfd
, info
, dyn_i
, (h
? h
->dynindx
: -1),
4044 rel
->r_addend
, value
, R_IA64_DIRNNLSB
);
4046 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4049 case R_IA64_PLTOFF22
:
4050 case R_IA64_PLTOFF64I
:
4051 case R_IA64_PLTOFF64MSB
:
4052 case R_IA64_PLTOFF64LSB
:
4053 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4054 value
= set_pltoff_entry (output_bfd
, info
, dyn_i
, value
, FALSE
);
4056 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4059 case R_IA64_FPTR64I
:
4060 case R_IA64_FPTR32MSB
:
4061 case R_IA64_FPTR32LSB
:
4062 case R_IA64_FPTR64MSB
:
4063 case R_IA64_FPTR64LSB
:
4064 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4065 if (dyn_i
->want_fptr
)
4067 if (!undef_weak_ref
)
4068 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4070 if (!dyn_i
->want_fptr
|| bfd_link_pie (info
))
4073 unsigned int dyn_r_type
= r_type
;
4074 bfd_vma addend
= rel
->r_addend
;
4076 /* Otherwise, we expect the dynamic linker to create
4079 if (dyn_i
->want_fptr
)
4081 if (r_type
== R_IA64_FPTR64I
)
4083 /* We can't represent this without a dynamic symbol.
4084 Adjust the relocation to be against an output
4085 section symbol, which are always present in the
4086 dynamic symbol table. */
4087 /* ??? People shouldn't be doing non-pic code in
4088 shared libraries. Hork. */
4090 (_("%pB: linking non-pic code in a position independent executable"),
4097 dyn_r_type
= r_type
+ R_IA64_RELNNLSB
- R_IA64_FPTRNNLSB
;
4101 if (h
->dynindx
!= -1)
4102 dynindx
= h
->dynindx
;
4104 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4105 (info
, h
->root
.u
.def
.section
->owner
,
4106 global_sym_index (h
)));
4111 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4112 (info
, input_bfd
, (long) r_symndx
));
4116 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4117 srel
, rel
->r_offset
, dyn_r_type
,
4121 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4124 case R_IA64_LTOFF_FPTR22
:
4125 case R_IA64_LTOFF_FPTR64I
:
4126 case R_IA64_LTOFF_FPTR32MSB
:
4127 case R_IA64_LTOFF_FPTR32LSB
:
4128 case R_IA64_LTOFF_FPTR64MSB
:
4129 case R_IA64_LTOFF_FPTR64LSB
:
4133 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4134 if (dyn_i
->want_fptr
)
4136 BFD_ASSERT (h
== NULL
|| h
->dynindx
== -1);
4137 if (!undef_weak_ref
)
4138 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4143 /* Otherwise, we expect the dynamic linker to create
4147 if (h
->dynindx
!= -1)
4148 dynindx
= h
->dynindx
;
4150 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4151 (info
, h
->root
.u
.def
.section
->owner
,
4152 global_sym_index (h
)));
4155 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4156 (info
, input_bfd
, (long) r_symndx
));
4160 value
= set_got_entry (output_bfd
, info
, dyn_i
, dynindx
,
4161 rel
->r_addend
, value
, R_IA64_FPTRNNLSB
);
4163 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4167 case R_IA64_PCREL32MSB
:
4168 case R_IA64_PCREL32LSB
:
4169 case R_IA64_PCREL64MSB
:
4170 case R_IA64_PCREL64LSB
:
4171 /* Install a dynamic relocation for this reloc. */
4172 if (dynamic_symbol_p
&& r_symndx
!= STN_UNDEF
)
4174 BFD_ASSERT (srel
!= NULL
);
4176 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4177 srel
, rel
->r_offset
, r_type
,
4178 h
->dynindx
, rel
->r_addend
);
4182 case R_IA64_PCREL21B
:
4183 case R_IA64_PCREL60B
:
4184 /* We should have created a PLT entry for any dynamic symbol. */
4187 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4189 if (dyn_i
&& dyn_i
->want_plt2
)
4191 /* Should have caught this earlier. */
4192 BFD_ASSERT (rel
->r_addend
== 0);
4194 value
= (ia64_info
->root
.splt
->output_section
->vma
4195 + ia64_info
->root
.splt
->output_offset
4196 + dyn_i
->plt2_offset
);
4200 /* Since there's no PLT entry, Validate that this is
4202 BFD_ASSERT (undef_weak_ref
|| sym_sec
->output_section
!= NULL
);
4204 /* If the symbol is undef_weak, we shouldn't be trying
4205 to call it. There's every chance that we'd wind up
4206 with an out-of-range fixup here. Don't bother setting
4207 any value at all. */
4213 case R_IA64_PCREL21BI
:
4214 case R_IA64_PCREL21F
:
4215 case R_IA64_PCREL21M
:
4216 case R_IA64_PCREL22
:
4217 case R_IA64_PCREL64I
:
4218 /* The PCREL21BI reloc is specifically not intended for use with
4219 dynamic relocs. PCREL21F and PCREL21M are used for speculation
4220 fixup code, and thus probably ought not be dynamic. The
4221 PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4222 if (dynamic_symbol_p
)
4226 if (r_type
== R_IA64_PCREL21BI
)
4227 /* xgettext:c-format */
4228 msg
= _("%pB: @internal branch to dynamic symbol %s");
4229 else if (r_type
== R_IA64_PCREL21F
|| r_type
== R_IA64_PCREL21M
)
4230 /* xgettext:c-format */
4231 msg
= _("%pB: speculation fixup to dynamic symbol %s");
4233 /* xgettext:c-format */
4234 msg
= _("%pB: @pcrel relocation against dynamic symbol %s");
4235 _bfd_error_handler (msg
, input_bfd
,
4236 h
? h
->root
.root
.string
4237 : bfd_elf_sym_name (input_bfd
,
4247 /* Make pc-relative. */
4248 value
-= (input_section
->output_section
->vma
4249 + input_section
->output_offset
4250 + rel
->r_offset
) & ~ (bfd_vma
) 0x3;
4251 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4254 case R_IA64_SEGREL32MSB
:
4255 case R_IA64_SEGREL32LSB
:
4256 case R_IA64_SEGREL64MSB
:
4257 case R_IA64_SEGREL64LSB
:
4259 /* Find the segment that contains the output_section. */
4260 Elf_Internal_Phdr
*p
= _bfd_elf_find_segment_containing_section
4261 (output_bfd
, input_section
->output_section
);
4265 r
= bfd_reloc_notsupported
;
4269 /* The VMA of the segment is the vaddr of the associated
4271 if (value
> p
->p_vaddr
)
4272 value
-= p
->p_vaddr
;
4275 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4280 case R_IA64_SECREL32MSB
:
4281 case R_IA64_SECREL32LSB
:
4282 case R_IA64_SECREL64MSB
:
4283 case R_IA64_SECREL64LSB
:
4284 /* Make output-section relative to section where the symbol
4285 is defined. PR 475 */
4287 value
-= sym_sec
->output_section
->vma
;
4288 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4291 case R_IA64_IPLTMSB
:
4292 case R_IA64_IPLTLSB
:
4293 /* Install a dynamic relocation for this reloc. */
4294 if ((dynamic_symbol_p
|| bfd_link_pic (info
))
4295 && (input_section
->flags
& SEC_ALLOC
) != 0)
4297 BFD_ASSERT (srel
!= NULL
);
4299 /* If we don't need dynamic symbol lookup, install two
4300 RELATIVE relocations. */
4301 if (!dynamic_symbol_p
)
4303 unsigned int dyn_r_type
;
4305 if (r_type
== R_IA64_IPLTMSB
)
4306 dyn_r_type
= R_IA64_REL64MSB
;
4308 dyn_r_type
= R_IA64_REL64LSB
;
4310 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4312 srel
, rel
->r_offset
,
4313 dyn_r_type
, 0, value
);
4314 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4316 srel
, rel
->r_offset
+ 8,
4317 dyn_r_type
, 0, gp_val
);
4320 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4321 srel
, rel
->r_offset
, r_type
,
4322 h
->dynindx
, rel
->r_addend
);
4325 if (r_type
== R_IA64_IPLTMSB
)
4326 r_type
= R_IA64_DIR64MSB
;
4328 r_type
= R_IA64_DIR64LSB
;
4329 ia64_elf_install_value (hit_addr
, value
, r_type
);
4330 r
= ia64_elf_install_value (hit_addr
+ 8, gp_val
, r_type
);
4333 case R_IA64_TPREL14
:
4334 case R_IA64_TPREL22
:
4335 case R_IA64_TPREL64I
:
4336 if (elf_hash_table (info
)->tls_sec
== NULL
)
4337 goto missing_tls_sec
;
4338 value
-= elfNN_ia64_tprel_base (info
);
4339 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4342 case R_IA64_DTPREL14
:
4343 case R_IA64_DTPREL22
:
4344 case R_IA64_DTPREL64I
:
4345 case R_IA64_DTPREL32LSB
:
4346 case R_IA64_DTPREL32MSB
:
4347 case R_IA64_DTPREL64LSB
:
4348 case R_IA64_DTPREL64MSB
:
4349 if (elf_hash_table (info
)->tls_sec
== NULL
)
4350 goto missing_tls_sec
;
4351 value
-= elfNN_ia64_dtprel_base (info
);
4352 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4355 case R_IA64_LTOFF_TPREL22
:
4356 case R_IA64_LTOFF_DTPMOD22
:
4357 case R_IA64_LTOFF_DTPREL22
:
4360 long dynindx
= h
? h
->dynindx
: -1;
4361 bfd_vma r_addend
= rel
->r_addend
;
4366 case R_IA64_LTOFF_TPREL22
:
4367 if (!dynamic_symbol_p
)
4369 if (elf_hash_table (info
)->tls_sec
== NULL
)
4370 goto missing_tls_sec
;
4371 if (!bfd_link_pic (info
))
4372 value
-= elfNN_ia64_tprel_base (info
);
4375 r_addend
+= value
- elfNN_ia64_dtprel_base (info
);
4379 got_r_type
= R_IA64_TPREL64LSB
;
4381 case R_IA64_LTOFF_DTPMOD22
:
4382 if (!dynamic_symbol_p
&& !bfd_link_pic (info
))
4384 got_r_type
= R_IA64_DTPMOD64LSB
;
4386 case R_IA64_LTOFF_DTPREL22
:
4387 if (!dynamic_symbol_p
)
4389 if (elf_hash_table (info
)->tls_sec
== NULL
)
4390 goto missing_tls_sec
;
4391 value
-= elfNN_ia64_dtprel_base (info
);
4393 got_r_type
= R_IA64_DTPRELNNLSB
;
4396 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4397 value
= set_got_entry (input_bfd
, info
, dyn_i
, dynindx
, r_addend
,
4400 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4405 r
= bfd_reloc_notsupported
;
4414 case bfd_reloc_undefined
:
4415 /* This can happen for global table relative relocs if
4416 __gp is undefined. This is a panic situation so we
4417 don't try to continue. */
4418 (*info
->callbacks
->undefined_symbol
)
4419 (info
, "__gp", input_bfd
, input_section
, rel
->r_offset
, 1);
4422 case bfd_reloc_notsupported
:
4427 name
= h
->root
.root
.string
;
4429 name
= bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4431 (*info
->callbacks
->warning
) (info
, _("unsupported reloc"),
4433 input_section
, rel
->r_offset
);
4438 case bfd_reloc_dangerous
:
4439 case bfd_reloc_outofrange
:
4440 case bfd_reloc_overflow
:
4447 name
= h
->root
.root
.string
;
4449 name
= bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4454 case R_IA64_TPREL14
:
4455 case R_IA64_TPREL22
:
4456 case R_IA64_TPREL64I
:
4457 case R_IA64_DTPREL14
:
4458 case R_IA64_DTPREL22
:
4459 case R_IA64_DTPREL64I
:
4460 case R_IA64_DTPREL32LSB
:
4461 case R_IA64_DTPREL32MSB
:
4462 case R_IA64_DTPREL64LSB
:
4463 case R_IA64_DTPREL64MSB
:
4464 case R_IA64_LTOFF_TPREL22
:
4465 case R_IA64_LTOFF_DTPMOD22
:
4466 case R_IA64_LTOFF_DTPREL22
:
4468 /* xgettext:c-format */
4469 (_("%pB: missing TLS section for relocation %s against `%s'"
4470 " at %#" PRIx64
" in section `%pA'."),
4471 input_bfd
, howto
->name
, name
,
4472 (uint64_t) rel
->r_offset
, input_section
);
4475 case R_IA64_PCREL21B
:
4476 case R_IA64_PCREL21BI
:
4477 case R_IA64_PCREL21M
:
4478 case R_IA64_PCREL21F
:
4479 if (is_elf_hash_table (info
->hash
))
4481 /* Relaxtion is always performed for ELF output.
4482 Overflow failures for those relocations mean
4483 that the section is too big to relax. */
4485 /* xgettext:c-format */
4486 (_("%pB: Can't relax br (%s) to `%s' at %#" PRIx64
4487 " in section `%pA' with size %#" PRIx64
4489 input_bfd
, howto
->name
, name
, (uint64_t) rel
->r_offset
,
4490 input_section
, (uint64_t) input_section
->size
);
4495 (*info
->callbacks
->reloc_overflow
) (info
,
4516 elfNN_ia64_finish_dynamic_symbol (bfd
*output_bfd
,
4517 struct bfd_link_info
*info
,
4518 struct elf_link_hash_entry
*h
,
4519 Elf_Internal_Sym
*sym
)
4521 struct elfNN_ia64_link_hash_table
*ia64_info
;
4522 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
4524 ia64_info
= elfNN_ia64_hash_table (info
);
4525 if (ia64_info
== NULL
)
4528 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4530 /* Fill in the PLT data, if required. */
4531 if (dyn_i
&& dyn_i
->want_plt
)
4533 Elf_Internal_Rela outrel
;
4536 bfd_vma plt_addr
, pltoff_addr
, gp_val
, plt_index
;
4538 gp_val
= _bfd_get_gp_value (output_bfd
);
4540 /* Initialize the minimal PLT entry. */
4542 plt_index
= (dyn_i
->plt_offset
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
4543 plt_sec
= ia64_info
->root
.splt
;
4544 loc
= plt_sec
->contents
+ dyn_i
->plt_offset
;
4546 memcpy (loc
, plt_min_entry
, PLT_MIN_ENTRY_SIZE
);
4547 ia64_elf_install_value (loc
, plt_index
, R_IA64_IMM22
);
4548 ia64_elf_install_value (loc
+2, -dyn_i
->plt_offset
, R_IA64_PCREL21B
);
4550 plt_addr
= (plt_sec
->output_section
->vma
4551 + plt_sec
->output_offset
4552 + dyn_i
->plt_offset
);
4553 pltoff_addr
= set_pltoff_entry (output_bfd
, info
, dyn_i
, plt_addr
, TRUE
);
4555 /* Initialize the FULL PLT entry, if needed. */
4556 if (dyn_i
->want_plt2
)
4558 loc
= plt_sec
->contents
+ dyn_i
->plt2_offset
;
4560 memcpy (loc
, plt_full_entry
, PLT_FULL_ENTRY_SIZE
);
4561 ia64_elf_install_value (loc
, pltoff_addr
- gp_val
, R_IA64_IMM22
);
4563 /* Mark the symbol as undefined, rather than as defined in the
4564 plt section. Leave the value alone. */
4565 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4566 first place. But perhaps elflink.c did some for us. */
4567 if (!h
->def_regular
)
4568 sym
->st_shndx
= SHN_UNDEF
;
4571 /* Create the dynamic relocation. */
4572 outrel
.r_offset
= pltoff_addr
;
4573 if (bfd_little_endian (output_bfd
))
4574 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTLSB
);
4576 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTMSB
);
4577 outrel
.r_addend
= 0;
4579 /* This is fun. In the .IA_64.pltoff section, we've got entries
4580 that correspond both to real PLT entries, and those that
4581 happened to resolve to local symbols but need to be created
4582 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4583 relocations for the real PLT should come at the end of the
4584 section, so that they can be indexed by plt entry at runtime.
4586 We emitted all of the relocations for the non-PLT @pltoff
4587 entries during relocate_section. So we can consider the
4588 existing sec->reloc_count to be the base of the array of
4591 loc
= ia64_info
->rel_pltoff_sec
->contents
;
4592 loc
+= ((ia64_info
->rel_pltoff_sec
->reloc_count
+ plt_index
)
4593 * sizeof (ElfNN_External_Rela
));
4594 bfd_elfNN_swap_reloca_out (output_bfd
, &outrel
, loc
);
4597 /* Mark some specially defined symbols as absolute. */
4598 if (h
== ia64_info
->root
.hdynamic
4599 || h
== ia64_info
->root
.hgot
4600 || h
== ia64_info
->root
.hplt
)
4601 sym
->st_shndx
= SHN_ABS
;
4607 elfNN_ia64_finish_dynamic_sections (bfd
*abfd
,
4608 struct bfd_link_info
*info
)
4610 struct elfNN_ia64_link_hash_table
*ia64_info
;
4613 ia64_info
= elfNN_ia64_hash_table (info
);
4614 if (ia64_info
== NULL
)
4617 dynobj
= ia64_info
->root
.dynobj
;
4619 if (ia64_info
->root
.dynamic_sections_created
)
4621 ElfNN_External_Dyn
*dyncon
, *dynconend
;
4622 asection
*sdyn
, *sgotplt
;
4625 sdyn
= bfd_get_linker_section (dynobj
, ".dynamic");
4626 sgotplt
= ia64_info
->root
.sgotplt
;
4627 BFD_ASSERT (sdyn
!= NULL
);
4628 dyncon
= (ElfNN_External_Dyn
*) sdyn
->contents
;
4629 dynconend
= (ElfNN_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
4631 gp_val
= _bfd_get_gp_value (abfd
);
4633 for (; dyncon
< dynconend
; dyncon
++)
4635 Elf_Internal_Dyn dyn
;
4637 bfd_elfNN_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4642 dyn
.d_un
.d_ptr
= gp_val
;
4646 dyn
.d_un
.d_val
= (ia64_info
->minplt_entries
4647 * sizeof (ElfNN_External_Rela
));
4651 /* See the comment above in finish_dynamic_symbol. */
4652 dyn
.d_un
.d_ptr
= (ia64_info
->rel_pltoff_sec
->output_section
->vma
4653 + ia64_info
->rel_pltoff_sec
->output_offset
4654 + (ia64_info
->rel_pltoff_sec
->reloc_count
4655 * sizeof (ElfNN_External_Rela
)));
4658 case DT_IA_64_PLT_RESERVE
:
4659 dyn
.d_un
.d_ptr
= (sgotplt
->output_section
->vma
4660 + sgotplt
->output_offset
);
4664 bfd_elfNN_swap_dyn_out (abfd
, &dyn
, dyncon
);
4667 /* Initialize the PLT0 entry. */
4668 if (ia64_info
->root
.splt
)
4670 bfd_byte
*loc
= ia64_info
->root
.splt
->contents
;
4673 memcpy (loc
, plt_header
, PLT_HEADER_SIZE
);
4675 pltres
= (sgotplt
->output_section
->vma
4676 + sgotplt
->output_offset
4679 ia64_elf_install_value (loc
+1, pltres
, R_IA64_GPREL22
);
4686 /* ELF file flag handling: */
4688 /* Function to keep IA-64 specific file flags. */
4690 elfNN_ia64_set_private_flags (bfd
*abfd
, flagword flags
)
4692 BFD_ASSERT (!elf_flags_init (abfd
)
4693 || elf_elfheader (abfd
)->e_flags
== flags
);
4695 elf_elfheader (abfd
)->e_flags
= flags
;
4696 elf_flags_init (abfd
) = TRUE
;
4700 /* Merge backend specific data from an object file to the output
4701 object file when linking. */
4704 elfNN_ia64_merge_private_bfd_data (bfd
*ibfd
, struct bfd_link_info
*info
)
4706 bfd
*obfd
= info
->output_bfd
;
4709 bfd_boolean ok
= TRUE
;
4711 /* FIXME: What should be checked when linking shared libraries? */
4712 if ((ibfd
->flags
& DYNAMIC
) != 0)
4715 if (!is_ia64_elf (ibfd
) || !is_ia64_elf (obfd
))
4718 in_flags
= elf_elfheader (ibfd
)->e_flags
;
4719 out_flags
= elf_elfheader (obfd
)->e_flags
;
4721 if (! elf_flags_init (obfd
))
4723 elf_flags_init (obfd
) = TRUE
;
4724 elf_elfheader (obfd
)->e_flags
= in_flags
;
4726 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
4727 && bfd_get_arch_info (obfd
)->the_default
)
4729 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
4730 bfd_get_mach (ibfd
));
4736 /* Check flag compatibility. */
4737 if (in_flags
== out_flags
)
4740 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4741 if (!(in_flags
& EF_IA_64_REDUCEDFP
) && (out_flags
& EF_IA_64_REDUCEDFP
))
4742 elf_elfheader (obfd
)->e_flags
&= ~EF_IA_64_REDUCEDFP
;
4744 if ((in_flags
& EF_IA_64_TRAPNIL
) != (out_flags
& EF_IA_64_TRAPNIL
))
4747 (_("%pB: linking trap-on-NULL-dereference with non-trapping files"),
4750 bfd_set_error (bfd_error_bad_value
);
4753 if ((in_flags
& EF_IA_64_BE
) != (out_flags
& EF_IA_64_BE
))
4756 (_("%pB: linking big-endian files with little-endian files"),
4759 bfd_set_error (bfd_error_bad_value
);
4762 if ((in_flags
& EF_IA_64_ABI64
) != (out_flags
& EF_IA_64_ABI64
))
4765 (_("%pB: linking 64-bit files with 32-bit files"),
4768 bfd_set_error (bfd_error_bad_value
);
4771 if ((in_flags
& EF_IA_64_CONS_GP
) != (out_flags
& EF_IA_64_CONS_GP
))
4774 (_("%pB: linking constant-gp files with non-constant-gp files"),
4777 bfd_set_error (bfd_error_bad_value
);
4780 if ((in_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
)
4781 != (out_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
))
4784 (_("%pB: linking auto-pic files with non-auto-pic files"),
4787 bfd_set_error (bfd_error_bad_value
);
4795 elfNN_ia64_print_private_bfd_data (bfd
*abfd
, void * ptr
)
4797 FILE *file
= (FILE *) ptr
;
4798 flagword flags
= elf_elfheader (abfd
)->e_flags
;
4800 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
4802 fprintf (file
, "private flags = %s%s%s%s%s%s%s%s\n",
4803 (flags
& EF_IA_64_TRAPNIL
) ? "TRAPNIL, " : "",
4804 (flags
& EF_IA_64_EXT
) ? "EXT, " : "",
4805 (flags
& EF_IA_64_BE
) ? "BE, " : "LE, ",
4806 (flags
& EF_IA_64_REDUCEDFP
) ? "REDUCEDFP, " : "",
4807 (flags
& EF_IA_64_CONS_GP
) ? "CONS_GP, " : "",
4808 (flags
& EF_IA_64_NOFUNCDESC_CONS_GP
) ? "NOFUNCDESC_CONS_GP, " : "",
4809 (flags
& EF_IA_64_ABSOLUTE
) ? "ABSOLUTE, " : "",
4810 (flags
& EF_IA_64_ABI64
) ? "ABI64" : "ABI32");
4812 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
4816 static enum elf_reloc_type_class
4817 elfNN_ia64_reloc_type_class (const struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
4818 const asection
*rel_sec ATTRIBUTE_UNUSED
,
4819 const Elf_Internal_Rela
*rela
)
4821 switch ((int) ELFNN_R_TYPE (rela
->r_info
))
4823 case R_IA64_REL32MSB
:
4824 case R_IA64_REL32LSB
:
4825 case R_IA64_REL64MSB
:
4826 case R_IA64_REL64LSB
:
4827 return reloc_class_relative
;
4828 case R_IA64_IPLTMSB
:
4829 case R_IA64_IPLTLSB
:
4830 return reloc_class_plt
;
4832 return reloc_class_copy
;
4834 return reloc_class_normal
;
4838 static const struct bfd_elf_special_section elfNN_ia64_special_sections
[] =
4840 { STRING_COMMA_LEN (".sbss"), -1, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4841 { STRING_COMMA_LEN (".sdata"), -1, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4842 { NULL
, 0, 0, 0, 0 }
4846 elfNN_ia64_object_p (bfd
*abfd
)
4849 asection
*group
, *unwi
, *unw
;
4852 char *unwi_name
, *unw_name
;
4855 if (abfd
->flags
& DYNAMIC
)
4858 /* Flags for fake group section. */
4859 flags
= (SEC_LINKER_CREATED
| SEC_GROUP
| SEC_LINK_ONCE
4862 /* We add a fake section group for each .gnu.linkonce.t.* section,
4863 which isn't in a section group, and its unwind sections. */
4864 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4866 if (elf_sec_group (sec
) == NULL
4867 && ((sec
->flags
& (SEC_LINK_ONCE
| SEC_CODE
| SEC_GROUP
))
4868 == (SEC_LINK_ONCE
| SEC_CODE
))
4869 && CONST_STRNEQ (sec
->name
, ".gnu.linkonce.t."))
4871 name
= sec
->name
+ 16;
4873 amt
= strlen (name
) + sizeof (".gnu.linkonce.ia64unwi.");
4874 unwi_name
= bfd_alloc (abfd
, amt
);
4878 strcpy (stpcpy (unwi_name
, ".gnu.linkonce.ia64unwi."), name
);
4879 unwi
= bfd_get_section_by_name (abfd
, unwi_name
);
4881 amt
= strlen (name
) + sizeof (".gnu.linkonce.ia64unw.");
4882 unw_name
= bfd_alloc (abfd
, amt
);
4886 strcpy (stpcpy (unw_name
, ".gnu.linkonce.ia64unw."), name
);
4887 unw
= bfd_get_section_by_name (abfd
, unw_name
);
4889 /* We need to create a fake group section for it and its
4891 group
= bfd_make_section_anyway_with_flags (abfd
, name
,
4896 /* Move the fake group section to the beginning. */
4897 bfd_section_list_remove (abfd
, group
);
4898 bfd_section_list_prepend (abfd
, group
);
4900 elf_next_in_group (group
) = sec
;
4902 elf_group_name (sec
) = name
;
4903 elf_next_in_group (sec
) = sec
;
4904 elf_sec_group (sec
) = group
;
4908 elf_group_name (unwi
) = name
;
4909 elf_next_in_group (unwi
) = sec
;
4910 elf_next_in_group (sec
) = unwi
;
4911 elf_sec_group (unwi
) = group
;
4916 elf_group_name (unw
) = name
;
4919 elf_next_in_group (unw
) = elf_next_in_group (unwi
);
4920 elf_next_in_group (unwi
) = unw
;
4924 elf_next_in_group (unw
) = sec
;
4925 elf_next_in_group (sec
) = unw
;
4927 elf_sec_group (unw
) = group
;
4930 /* Fake SHT_GROUP section header. */
4931 elf_section_data (group
)->this_hdr
.bfd_section
= group
;
4932 elf_section_data (group
)->this_hdr
.sh_type
= SHT_GROUP
;
4939 elfNN_ia64_hpux_vec (const bfd_target
*vec
)
4941 extern const bfd_target ia64_elfNN_hpux_be_vec
;
4942 return (vec
== &ia64_elfNN_hpux_be_vec
);
4946 elfNN_hpux_init_file_header (bfd
*abfd
, struct bfd_link_info
*info
)
4948 Elf_Internal_Ehdr
*i_ehdrp
;
4950 if (!_bfd_elf_init_file_header (abfd
, info
))
4953 i_ehdrp
= elf_elfheader (abfd
);
4954 i_ehdrp
->e_ident
[EI_OSABI
] = get_elf_backend_data (abfd
)->elf_osabi
;
4955 i_ehdrp
->e_ident
[EI_ABIVERSION
] = 1;
4960 elfNN_hpux_backend_section_from_bfd_section (bfd
*abfd ATTRIBUTE_UNUSED
,
4961 asection
*sec
, int *retval
)
4963 if (bfd_is_com_section (sec
))
4965 *retval
= SHN_IA_64_ANSI_COMMON
;
4972 elfNN_hpux_backend_symbol_processing (bfd
*abfd ATTRIBUTE_UNUSED
,
4975 elf_symbol_type
*elfsym
= (elf_symbol_type
*) asym
;
4977 switch (elfsym
->internal_elf_sym
.st_shndx
)
4979 case SHN_IA_64_ANSI_COMMON
:
4980 asym
->section
= bfd_com_section_ptr
;
4981 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
4982 asym
->flags
&= ~BSF_GLOBAL
;
4988 ignore_errors (const char *fmt ATTRIBUTE_UNUSED
, ...)
4992 #define TARGET_LITTLE_SYM ia64_elfNN_le_vec
4993 #define TARGET_LITTLE_NAME "elfNN-ia64-little"
4994 #define TARGET_BIG_SYM ia64_elfNN_be_vec
4995 #define TARGET_BIG_NAME "elfNN-ia64-big"
4996 #define ELF_ARCH bfd_arch_ia64
4997 #define ELF_TARGET_ID IA64_ELF_DATA
4998 #define ELF_MACHINE_CODE EM_IA_64
4999 #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
5000 #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
5001 #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
5002 #define ELF_COMMONPAGESIZE 0x4000 /* 16KB */
5004 #define elf_backend_section_from_shdr \
5005 elfNN_ia64_section_from_shdr
5006 #define elf_backend_section_flags \
5007 elfNN_ia64_section_flags
5008 #define elf_backend_fake_sections \
5009 elfNN_ia64_fake_sections
5010 #define elf_backend_final_write_processing \
5011 elfNN_ia64_final_write_processing
5012 #define elf_backend_add_symbol_hook \
5013 elfNN_ia64_add_symbol_hook
5014 #define elf_backend_additional_program_headers \
5015 elfNN_ia64_additional_program_headers
5016 #define elf_backend_modify_segment_map \
5017 elfNN_ia64_modify_segment_map
5018 #define elf_backend_modify_headers \
5019 elfNN_ia64_modify_headers
5020 #define elf_info_to_howto \
5021 elfNN_ia64_info_to_howto
5023 #define bfd_elfNN_bfd_reloc_type_lookup \
5024 ia64_elf_reloc_type_lookup
5025 #define bfd_elfNN_bfd_reloc_name_lookup \
5026 ia64_elf_reloc_name_lookup
5027 #define bfd_elfNN_bfd_is_local_label_name \
5028 elfNN_ia64_is_local_label_name
5029 #define bfd_elfNN_bfd_relax_section \
5030 elfNN_ia64_relax_section
5032 #define elf_backend_object_p \
5035 /* Stuff for the BFD linker: */
5036 #define bfd_elfNN_bfd_link_hash_table_create \
5037 elfNN_ia64_hash_table_create
5038 #define elf_backend_create_dynamic_sections \
5039 elfNN_ia64_create_dynamic_sections
5040 #define elf_backend_check_relocs \
5041 elfNN_ia64_check_relocs
5042 #define elf_backend_adjust_dynamic_symbol \
5043 elfNN_ia64_adjust_dynamic_symbol
5044 #define elf_backend_size_dynamic_sections \
5045 elfNN_ia64_size_dynamic_sections
5046 #define elf_backend_omit_section_dynsym \
5047 _bfd_elf_omit_section_dynsym_all
5048 #define elf_backend_relocate_section \
5049 elfNN_ia64_relocate_section
5050 #define elf_backend_finish_dynamic_symbol \
5051 elfNN_ia64_finish_dynamic_symbol
5052 #define elf_backend_finish_dynamic_sections \
5053 elfNN_ia64_finish_dynamic_sections
5054 #define bfd_elfNN_bfd_final_link \
5055 elfNN_ia64_final_link
5057 #define bfd_elfNN_bfd_merge_private_bfd_data \
5058 elfNN_ia64_merge_private_bfd_data
5059 #define bfd_elfNN_bfd_set_private_flags \
5060 elfNN_ia64_set_private_flags
5061 #define bfd_elfNN_bfd_print_private_bfd_data \
5062 elfNN_ia64_print_private_bfd_data
5064 #define elf_backend_plt_readonly 1
5065 #define elf_backend_can_gc_sections 1
5066 #define elf_backend_want_plt_sym 0
5067 #define elf_backend_plt_alignment 5
5068 #define elf_backend_got_header_size 0
5069 #define elf_backend_want_got_plt 1
5070 #define elf_backend_may_use_rel_p 1
5071 #define elf_backend_may_use_rela_p 1
5072 #define elf_backend_default_use_rela_p 1
5073 #define elf_backend_want_dynbss 0
5074 #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
5075 #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
5076 #define elf_backend_fixup_symbol _bfd_elf_link_hash_fixup_symbol
5077 #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
5078 #define elf_backend_rela_normal 1
5079 #define elf_backend_dtrel_excludes_plt 1
5080 #define elf_backend_special_sections elfNN_ia64_special_sections
5081 #define elf_backend_default_execstack 0
5083 /* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with
5084 SHF_LINK_ORDER. But it doesn't set the sh_link or sh_info fields.
5085 We don't want to flood users with so many error messages. We turn
5086 off the warning for now. It will be turned on later when the Intel
5087 compiler is fixed. */
5088 #define elf_backend_link_order_error_handler ignore_errors
5090 #include "elfNN-target.h"
5092 /* HPUX-specific vectors. */
5094 #undef TARGET_LITTLE_SYM
5095 #undef TARGET_LITTLE_NAME
5096 #undef TARGET_BIG_SYM
5097 #define TARGET_BIG_SYM ia64_elfNN_hpux_be_vec
5098 #undef TARGET_BIG_NAME
5099 #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
5101 /* These are HP-UX specific functions. */
5103 #undef elf_backend_init_file_header
5104 #define elf_backend_init_file_header elfNN_hpux_init_file_header
5106 #undef elf_backend_section_from_bfd_section
5107 #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
5109 #undef elf_backend_symbol_processing
5110 #define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
5112 #undef elf_backend_want_p_paddr_set_to_zero
5113 #define elf_backend_want_p_paddr_set_to_zero 1
5115 #undef ELF_COMMONPAGESIZE
5117 #define ELF_OSABI ELFOSABI_HPUX
5120 #define elfNN_bed elfNN_ia64_hpux_bed
5122 #include "elfNN-target.h"