1 /* IA-64 support for 64-bit ELF
2 Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
3 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
4 Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
27 #include "opcode/ia64.h"
31 #include "bfd_stdint.h"
32 #include "elfxx-ia64.h"
37 #define LOG_SECTION_ALIGN 3
41 #define LOG_SECTION_ALIGN 2
44 typedef struct bfd_hash_entry
*(*new_hash_entry_func
)
45 (struct bfd_hash_entry
*, struct bfd_hash_table
*, const char *);
47 /* In dynamically (linker-) created sections, we generally need to keep track
48 of the place a symbol or expression got allocated to. This is done via hash
49 tables that store entries of the following type. */
51 struct elfNN_ia64_dyn_sym_info
53 /* The addend for which this entry is relevant. */
58 bfd_vma pltoff_offset
;
62 bfd_vma dtpmod_offset
;
63 bfd_vma dtprel_offset
;
65 /* The symbol table entry, if any, that this was derived from. */
66 struct elf_link_hash_entry
*h
;
68 /* Used to count non-got, non-plt relocations for delayed sizing
69 of relocation sections. */
70 struct elfNN_ia64_dyn_reloc_entry
72 struct elfNN_ia64_dyn_reloc_entry
*next
;
77 /* Is this reloc against readonly section? */
81 /* TRUE when the section contents have been updated. */
82 unsigned got_done
: 1;
83 unsigned fptr_done
: 1;
84 unsigned pltoff_done
: 1;
85 unsigned tprel_done
: 1;
86 unsigned dtpmod_done
: 1;
87 unsigned dtprel_done
: 1;
89 /* TRUE for the different kinds of linker data we want created. */
90 unsigned want_got
: 1;
91 unsigned want_gotx
: 1;
92 unsigned want_fptr
: 1;
93 unsigned want_ltoff_fptr
: 1;
94 unsigned want_plt
: 1;
95 unsigned want_plt2
: 1;
96 unsigned want_pltoff
: 1;
97 unsigned want_tprel
: 1;
98 unsigned want_dtpmod
: 1;
99 unsigned want_dtprel
: 1;
102 struct elfNN_ia64_local_hash_entry
106 /* The number of elements in elfNN_ia64_dyn_sym_info array. */
108 /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
109 unsigned int sorted_count
;
110 /* The size of elfNN_ia64_dyn_sym_info array. */
112 /* The array of elfNN_ia64_dyn_sym_info. */
113 struct elfNN_ia64_dyn_sym_info
*info
;
115 /* TRUE if this hash entry's addends was translated for
116 SHF_MERGE optimization. */
117 unsigned sec_merge_done
: 1;
120 struct elfNN_ia64_link_hash_entry
122 struct elf_link_hash_entry root
;
123 /* The number of elements in elfNN_ia64_dyn_sym_info array. */
125 /* The number of sorted elements in elfNN_ia64_dyn_sym_info array. */
126 unsigned int sorted_count
;
127 /* The size of elfNN_ia64_dyn_sym_info array. */
129 /* The array of elfNN_ia64_dyn_sym_info. */
130 struct elfNN_ia64_dyn_sym_info
*info
;
133 struct elfNN_ia64_link_hash_table
135 /* The main hash table. */
136 struct elf_link_hash_table root
;
138 asection
*fptr_sec
; /* Function descriptor table (or NULL). */
139 asection
*rel_fptr_sec
; /* Dynamic relocation section for same. */
140 asection
*pltoff_sec
; /* Private descriptors for plt (or NULL). */
141 asection
*rel_pltoff_sec
; /* Dynamic relocation section for same. */
143 bfd_size_type minplt_entries
; /* Number of minplt entries. */
144 unsigned reltext
: 1; /* Are there relocs against readonly sections? */
145 unsigned self_dtpmod_done
: 1;/* Has self DTPMOD entry been finished? */
146 bfd_vma self_dtpmod_offset
; /* .got offset to self DTPMOD entry. */
147 /* There are maybe R_IA64_GPREL22 relocations, including those
148 optimized from R_IA64_LTOFF22X, against non-SHF_IA_64_SHORT
149 sections. We need to record those sections so that we can choose
150 a proper GP to cover all R_IA64_GPREL22 relocations. */
151 asection
*max_short_sec
; /* Maximum short output section. */
152 bfd_vma max_short_offset
; /* Maximum short offset. */
153 asection
*min_short_sec
; /* Minimum short output section. */
154 bfd_vma min_short_offset
; /* Minimum short offset. */
156 htab_t loc_hash_table
;
157 void *loc_hash_memory
;
160 struct elfNN_ia64_allocate_data
162 struct bfd_link_info
*info
;
164 bfd_boolean only_got
;
167 #define elfNN_ia64_hash_table(p) \
168 (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \
169 == IA64_ELF_DATA ? ((struct elfNN_ia64_link_hash_table *) ((p)->hash)) : NULL)
171 static struct elfNN_ia64_dyn_sym_info
* get_dyn_sym_info
172 (struct elfNN_ia64_link_hash_table
*ia64_info
,
173 struct elf_link_hash_entry
*h
,
174 bfd
*abfd
, const Elf_Internal_Rela
*rel
, bfd_boolean create
);
175 static bfd_boolean elfNN_ia64_dynamic_symbol_p
176 (struct elf_link_hash_entry
*h
, struct bfd_link_info
*info
, int);
177 static bfd_boolean elfNN_ia64_choose_gp
178 (bfd
*abfd
, struct bfd_link_info
*info
, bfd_boolean final
);
179 static void elfNN_ia64_dyn_sym_traverse
180 (struct elfNN_ia64_link_hash_table
*ia64_info
,
181 bfd_boolean (*func
) (struct elfNN_ia64_dyn_sym_info
*, PTR
),
183 static bfd_boolean allocate_global_data_got
184 (struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
);
185 static bfd_boolean allocate_global_fptr_got
186 (struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
);
187 static bfd_boolean allocate_local_got
188 (struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
);
189 static bfd_boolean elfNN_ia64_hpux_vec
190 (const bfd_target
*vec
);
191 static bfd_boolean allocate_dynrel_entries
192 (struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
);
193 static asection
*get_pltoff
194 (bfd
*abfd
, struct bfd_link_info
*info
,
195 struct elfNN_ia64_link_hash_table
*ia64_info
);
197 /* ia64-specific relocation. */
199 /* Given a ELF reloc, return the matching HOWTO structure. */
202 elfNN_ia64_info_to_howto (bfd
*abfd ATTRIBUTE_UNUSED
,
204 Elf_Internal_Rela
*elf_reloc
)
207 = ia64_elf_lookup_howto ((unsigned int) ELFNN_R_TYPE (elf_reloc
->r_info
));
210 #define PLT_HEADER_SIZE (3 * 16)
211 #define PLT_MIN_ENTRY_SIZE (1 * 16)
212 #define PLT_FULL_ENTRY_SIZE (2 * 16)
213 #define PLT_RESERVED_WORDS 3
215 static const bfd_byte plt_header
[PLT_HEADER_SIZE
] =
217 0x0b, 0x10, 0x00, 0x1c, 0x00, 0x21, /* [MMI] mov r2=r14;; */
218 0xe0, 0x00, 0x08, 0x00, 0x48, 0x00, /* addl r14=0,r2 */
219 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
220 0x0b, 0x80, 0x20, 0x1c, 0x18, 0x14, /* [MMI] ld8 r16=[r14],8;; */
221 0x10, 0x41, 0x38, 0x30, 0x28, 0x00, /* ld8 r17=[r14],8 */
222 0x00, 0x00, 0x04, 0x00, /* nop.i 0x0;; */
223 0x11, 0x08, 0x00, 0x1c, 0x18, 0x10, /* [MIB] ld8 r1=[r14] */
224 0x60, 0x88, 0x04, 0x80, 0x03, 0x00, /* mov b6=r17 */
225 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
228 static const bfd_byte plt_min_entry
[PLT_MIN_ENTRY_SIZE
] =
230 0x11, 0x78, 0x00, 0x00, 0x00, 0x24, /* [MIB] mov r15=0 */
231 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* nop.i 0x0 */
232 0x00, 0x00, 0x00, 0x40 /* br.few 0 <PLT0>;; */
235 static const bfd_byte plt_full_entry
[PLT_FULL_ENTRY_SIZE
] =
237 0x0b, 0x78, 0x00, 0x02, 0x00, 0x24, /* [MMI] addl r15=0,r1;; */
238 0x00, 0x41, 0x3c, 0x70, 0x29, 0xc0, /* ld8.acq r16=[r15],8*/
239 0x01, 0x08, 0x00, 0x84, /* mov r14=r1;; */
240 0x11, 0x08, 0x00, 0x1e, 0x18, 0x10, /* [MIB] ld8 r1=[r15] */
241 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
242 0x60, 0x00, 0x80, 0x00 /* br.few b6;; */
245 #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
247 static const bfd_byte oor_brl
[16] =
249 0x05, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
250 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* brl.sptk.few tgt;; */
251 0x00, 0x00, 0x00, 0xc0
254 static const bfd_byte oor_ip
[48] =
256 0x04, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MLX] nop.m 0 */
257 0x00, 0x00, 0x00, 0x00, 0x00, 0xe0, /* movl r15=0 */
258 0x01, 0x00, 0x00, 0x60,
259 0x03, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MII] nop.m 0 */
260 0x00, 0x01, 0x00, 0x60, 0x00, 0x00, /* mov r16=ip;; */
261 0xf2, 0x80, 0x00, 0x80, /* add r16=r15,r16;; */
262 0x11, 0x00, 0x00, 0x00, 0x01, 0x00, /* [MIB] nop.m 0 */
263 0x60, 0x80, 0x04, 0x80, 0x03, 0x00, /* mov b6=r16 */
264 0x60, 0x00, 0x80, 0x00 /* br b6;; */
267 static size_t oor_branch_size
= sizeof (oor_brl
);
270 bfd_elfNN_ia64_after_parse (int itanium
)
272 oor_branch_size
= itanium
? sizeof (oor_ip
) : sizeof (oor_brl
);
276 /* Rename some of the generic section flags to better document how they
278 #define skip_relax_pass_0 sec_flg0
279 #define skip_relax_pass_1 sec_flg1
281 /* These functions do relaxation for IA-64 ELF. */
284 elfNN_ia64_update_short_info (asection
*sec
, bfd_vma offset
,
285 struct elfNN_ia64_link_hash_table
*ia64_info
)
287 /* Skip ABS and SHF_IA_64_SHORT sections. */
288 if (sec
== bfd_abs_section_ptr
289 || (sec
->flags
& SEC_SMALL_DATA
) != 0)
292 if (!ia64_info
->min_short_sec
)
294 ia64_info
->max_short_sec
= sec
;
295 ia64_info
->max_short_offset
= offset
;
296 ia64_info
->min_short_sec
= sec
;
297 ia64_info
->min_short_offset
= offset
;
299 else if (sec
== ia64_info
->max_short_sec
300 && offset
> ia64_info
->max_short_offset
)
301 ia64_info
->max_short_offset
= offset
;
302 else if (sec
== ia64_info
->min_short_sec
303 && offset
< ia64_info
->min_short_offset
)
304 ia64_info
->min_short_offset
= offset
;
305 else if (sec
->output_section
->vma
306 > ia64_info
->max_short_sec
->vma
)
308 ia64_info
->max_short_sec
= sec
;
309 ia64_info
->max_short_offset
= offset
;
311 else if (sec
->output_section
->vma
312 < ia64_info
->min_short_sec
->vma
)
314 ia64_info
->min_short_sec
= sec
;
315 ia64_info
->min_short_offset
= offset
;
320 elfNN_ia64_relax_section (bfd
*abfd
, asection
*sec
,
321 struct bfd_link_info
*link_info
,
326 struct one_fixup
*next
;
332 Elf_Internal_Shdr
*symtab_hdr
;
333 Elf_Internal_Rela
*internal_relocs
;
334 Elf_Internal_Rela
*irel
, *irelend
;
336 Elf_Internal_Sym
*isymbuf
= NULL
;
337 struct elfNN_ia64_link_hash_table
*ia64_info
;
338 struct one_fixup
*fixups
= NULL
;
339 bfd_boolean changed_contents
= FALSE
;
340 bfd_boolean changed_relocs
= FALSE
;
341 bfd_boolean changed_got
= FALSE
;
342 bfd_boolean skip_relax_pass_0
= TRUE
;
343 bfd_boolean skip_relax_pass_1
= TRUE
;
346 /* Assume we're not going to change any sizes, and we'll only need
350 if (link_info
->relocatable
)
351 (*link_info
->callbacks
->einfo
)
352 (_("%P%F: --relax and -r may not be used together\n"));
354 /* Don't even try to relax for non-ELF outputs. */
355 if (!is_elf_hash_table (link_info
->hash
))
358 /* Nothing to do if there are no relocations or there is no need for
360 if ((sec
->flags
& SEC_RELOC
) == 0
361 || sec
->reloc_count
== 0
362 || (link_info
->relax_pass
== 0 && sec
->skip_relax_pass_0
)
363 || (link_info
->relax_pass
== 1 && sec
->skip_relax_pass_1
))
366 ia64_info
= elfNN_ia64_hash_table (link_info
);
367 if (ia64_info
== NULL
)
370 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
372 /* Load the relocations for this section. */
373 internal_relocs
= (_bfd_elf_link_read_relocs
374 (abfd
, sec
, NULL
, (Elf_Internal_Rela
*) NULL
,
375 link_info
->keep_memory
));
376 if (internal_relocs
== NULL
)
379 irelend
= internal_relocs
+ sec
->reloc_count
;
381 /* Get the section contents. */
382 if (elf_section_data (sec
)->this_hdr
.contents
!= NULL
)
383 contents
= elf_section_data (sec
)->this_hdr
.contents
;
386 if (!bfd_malloc_and_get_section (abfd
, sec
, &contents
))
390 for (irel
= internal_relocs
; irel
< irelend
; irel
++)
392 unsigned long r_type
= ELFNN_R_TYPE (irel
->r_info
);
393 bfd_vma symaddr
, reladdr
, trampoff
, toff
, roff
;
397 bfd_boolean is_branch
;
398 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
403 case R_IA64_PCREL21B
:
404 case R_IA64_PCREL21BI
:
405 case R_IA64_PCREL21M
:
406 case R_IA64_PCREL21F
:
407 /* In pass 1, all br relaxations are done. We can skip it. */
408 if (link_info
->relax_pass
== 1)
410 skip_relax_pass_0
= FALSE
;
414 case R_IA64_PCREL60B
:
415 /* We can't optimize brl to br in pass 0 since br relaxations
416 will increase the code size. Defer it to pass 1. */
417 if (link_info
->relax_pass
== 0)
419 skip_relax_pass_1
= FALSE
;
426 /* Update max_short_sec/min_short_sec. */
428 case R_IA64_LTOFF22X
:
430 /* We can't relax ldx/mov in pass 0 since br relaxations will
431 increase the code size. Defer it to pass 1. */
432 if (link_info
->relax_pass
== 0)
434 skip_relax_pass_1
= FALSE
;
444 /* Get the value of the symbol referred to by the reloc. */
445 if (ELFNN_R_SYM (irel
->r_info
) < symtab_hdr
->sh_info
)
447 /* A local symbol. */
448 Elf_Internal_Sym
*isym
;
450 /* Read this BFD's local symbols. */
453 isymbuf
= (Elf_Internal_Sym
*) symtab_hdr
->contents
;
455 isymbuf
= bfd_elf_get_elf_syms (abfd
, symtab_hdr
,
456 symtab_hdr
->sh_info
, 0,
462 isym
= isymbuf
+ ELFNN_R_SYM (irel
->r_info
);
463 if (isym
->st_shndx
== SHN_UNDEF
)
464 continue; /* We can't do anything with undefined symbols. */
465 else if (isym
->st_shndx
== SHN_ABS
)
466 tsec
= bfd_abs_section_ptr
;
467 else if (isym
->st_shndx
== SHN_COMMON
)
468 tsec
= bfd_com_section_ptr
;
469 else if (isym
->st_shndx
== SHN_IA_64_ANSI_COMMON
)
470 tsec
= bfd_com_section_ptr
;
472 tsec
= bfd_section_from_elf_index (abfd
, isym
->st_shndx
);
474 toff
= isym
->st_value
;
475 dyn_i
= get_dyn_sym_info (ia64_info
, NULL
, abfd
, irel
, FALSE
);
476 symtype
= ELF_ST_TYPE (isym
->st_info
);
481 struct elf_link_hash_entry
*h
;
483 indx
= ELFNN_R_SYM (irel
->r_info
) - symtab_hdr
->sh_info
;
484 h
= elf_sym_hashes (abfd
)[indx
];
485 BFD_ASSERT (h
!= NULL
);
487 while (h
->root
.type
== bfd_link_hash_indirect
488 || h
->root
.type
== bfd_link_hash_warning
)
489 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
491 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, irel
, FALSE
);
493 /* For branches to dynamic symbols, we're interested instead
494 in a branch to the PLT entry. */
495 if (is_branch
&& dyn_i
&& dyn_i
->want_plt2
)
497 /* Internal branches shouldn't be sent to the PLT.
498 Leave this for now and we'll give an error later. */
499 if (r_type
!= R_IA64_PCREL21B
)
502 tsec
= ia64_info
->root
.splt
;
503 toff
= dyn_i
->plt2_offset
;
504 BFD_ASSERT (irel
->r_addend
== 0);
507 /* Can't do anything else with dynamic symbols. */
508 else if (elfNN_ia64_dynamic_symbol_p (h
, link_info
, r_type
))
513 /* We can't do anything with undefined symbols. */
514 if (h
->root
.type
== bfd_link_hash_undefined
515 || h
->root
.type
== bfd_link_hash_undefweak
)
518 tsec
= h
->root
.u
.def
.section
;
519 toff
= h
->root
.u
.def
.value
;
525 if (tsec
->sec_info_type
== SEC_INFO_TYPE_MERGE
)
527 /* At this stage in linking, no SEC_MERGE symbol has been
528 adjusted, so all references to such symbols need to be
529 passed through _bfd_merged_section_offset. (Later, in
530 relocate_section, all SEC_MERGE symbols *except* for
531 section symbols have been adjusted.)
533 gas may reduce relocations against symbols in SEC_MERGE
534 sections to a relocation against the section symbol when
535 the original addend was zero. When the reloc is against
536 a section symbol we should include the addend in the
537 offset passed to _bfd_merged_section_offset, since the
538 location of interest is the original symbol. On the
539 other hand, an access to "sym+addend" where "sym" is not
540 a section symbol should not include the addend; Such an
541 access is presumed to be an offset from "sym"; The
542 location of interest is just "sym". */
543 if (symtype
== STT_SECTION
)
544 toff
+= irel
->r_addend
;
546 toff
= _bfd_merged_section_offset (abfd
, &tsec
,
547 elf_section_data (tsec
)->sec_info
,
550 if (symtype
!= STT_SECTION
)
551 toff
+= irel
->r_addend
;
554 toff
+= irel
->r_addend
;
556 symaddr
= tsec
->output_section
->vma
+ tsec
->output_offset
+ toff
;
558 roff
= irel
->r_offset
;
562 bfd_signed_vma offset
;
564 reladdr
= (sec
->output_section
->vma
566 + roff
) & (bfd_vma
) -4;
568 /* The .plt section is aligned at 32byte and the .text section
569 is aligned at 64byte. The .text section is right after the
570 .plt section. After the first relaxation pass, linker may
571 increase the gap between the .plt and .text sections up
572 to 32byte. We assume linker will always insert 32byte
573 between the .plt and .text sections after the the first
575 if (tsec
== ia64_info
->root
.splt
)
576 offset
= -0x1000000 + 32;
580 /* If the branch is in range, no need to do anything. */
581 if ((bfd_signed_vma
) (symaddr
- reladdr
) >= offset
582 && (bfd_signed_vma
) (symaddr
- reladdr
) <= 0x0FFFFF0)
584 /* If the 60-bit branch is in 21-bit range, optimize it. */
585 if (r_type
== R_IA64_PCREL60B
)
587 ia64_elf_relax_brl (contents
, roff
);
590 = ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
593 /* If the original relocation offset points to slot
594 1, change it to slot 2. */
595 if ((irel
->r_offset
& 3) == 1)
601 else if (r_type
== R_IA64_PCREL60B
)
603 else if (ia64_elf_relax_br (contents
, roff
))
606 = ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
609 /* Make the relocation offset point to slot 1. */
610 irel
->r_offset
= (irel
->r_offset
& ~((bfd_vma
) 0x3)) + 1;
614 /* We can't put a trampoline in a .init/.fini section. Issue
616 if (strcmp (sec
->output_section
->name
, ".init") == 0
617 || strcmp (sec
->output_section
->name
, ".fini") == 0)
619 (*_bfd_error_handler
)
620 (_("%B: Can't relax br at 0x%lx in section `%A'. Please use brl or indirect branch."),
621 sec
->owner
, sec
, (unsigned long) roff
);
622 bfd_set_error (bfd_error_bad_value
);
626 /* If the branch and target are in the same section, you've
627 got one honking big section and we can't help you unless
628 you are branching backwards. You'll get an error message
630 if (tsec
== sec
&& toff
> roff
)
633 /* Look for an existing fixup to this address. */
634 for (f
= fixups
; f
; f
= f
->next
)
635 if (f
->tsec
== tsec
&& f
->toff
== toff
)
640 /* Two alternatives: If it's a branch to a PLT entry, we can
641 make a copy of the FULL_PLT entry. Otherwise, we'll have
642 to use a `brl' insn to get where we're going. */
646 if (tsec
== ia64_info
->root
.splt
)
647 size
= sizeof (plt_full_entry
);
649 size
= oor_branch_size
;
651 /* Resize the current section to make room for the new branch. */
652 trampoff
= (sec
->size
+ 15) & (bfd_vma
) -16;
654 /* If trampoline is out of range, there is nothing we
656 offset
= trampoff
- (roff
& (bfd_vma
) -4);
657 if (offset
< -0x1000000 || offset
> 0x0FFFFF0)
660 amt
= trampoff
+ size
;
661 contents
= (bfd_byte
*) bfd_realloc (contents
, amt
);
662 if (contents
== NULL
)
666 if (tsec
== ia64_info
->root
.splt
)
668 memcpy (contents
+ trampoff
, plt_full_entry
, size
);
670 /* Hijack the old relocation for use as the PLTOFF reloc. */
671 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
673 irel
->r_offset
= trampoff
;
677 if (size
== sizeof (oor_ip
))
679 memcpy (contents
+ trampoff
, oor_ip
, size
);
680 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
682 irel
->r_addend
-= 16;
683 irel
->r_offset
= trampoff
+ 2;
687 memcpy (contents
+ trampoff
, oor_brl
, size
);
688 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
690 irel
->r_offset
= trampoff
+ 2;
695 /* Record the fixup so we don't do it again this section. */
696 f
= (struct one_fixup
*)
697 bfd_malloc ((bfd_size_type
) sizeof (*f
));
701 f
->trampoff
= trampoff
;
706 /* If trampoline is out of range, there is nothing we
708 offset
= f
->trampoff
- (roff
& (bfd_vma
) -4);
709 if (offset
< -0x1000000 || offset
> 0x0FFFFF0)
712 /* Nop out the reloc, since we're finalizing things here. */
713 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
716 /* Fix up the existing branch to hit the trampoline. */
717 if (ia64_elf_install_value (contents
+ roff
, offset
, r_type
)
721 changed_contents
= TRUE
;
722 changed_relocs
= TRUE
;
729 bfd
*obfd
= sec
->output_section
->owner
;
730 gp
= _bfd_get_gp_value (obfd
);
733 if (!elfNN_ia64_choose_gp (obfd
, link_info
, FALSE
))
735 gp
= _bfd_get_gp_value (obfd
);
739 /* If the data is out of range, do nothing. */
740 if ((bfd_signed_vma
) (symaddr
- gp
) >= 0x200000
741 ||(bfd_signed_vma
) (symaddr
- gp
) < -0x200000)
744 if (r_type
== R_IA64_GPREL22
)
745 elfNN_ia64_update_short_info (tsec
->output_section
,
746 tsec
->output_offset
+ toff
,
748 else if (r_type
== R_IA64_LTOFF22X
)
750 irel
->r_info
= ELFNN_R_INFO (ELFNN_R_SYM (irel
->r_info
),
752 changed_relocs
= TRUE
;
753 if (dyn_i
->want_gotx
)
755 dyn_i
->want_gotx
= 0;
756 changed_got
|= !dyn_i
->want_got
;
759 elfNN_ia64_update_short_info (tsec
->output_section
,
760 tsec
->output_offset
+ toff
,
765 ia64_elf_relax_ldxmov (contents
, roff
);
766 irel
->r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
767 changed_contents
= TRUE
;
768 changed_relocs
= TRUE
;
773 /* ??? If we created fixups, this may push the code segment large
774 enough that the data segment moves, which will change the GP.
775 Reset the GP so that we re-calculate next round. We need to
776 do this at the _beginning_ of the next round; now will not do. */
778 /* Clean up and go home. */
781 struct one_fixup
*f
= fixups
;
782 fixups
= fixups
->next
;
787 && symtab_hdr
->contents
!= (unsigned char *) isymbuf
)
789 if (! link_info
->keep_memory
)
793 /* Cache the symbols for elf_link_input_bfd. */
794 symtab_hdr
->contents
= (unsigned char *) isymbuf
;
799 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
801 if (!changed_contents
&& !link_info
->keep_memory
)
805 /* Cache the section contents for elf_link_input_bfd. */
806 elf_section_data (sec
)->this_hdr
.contents
= contents
;
810 if (elf_section_data (sec
)->relocs
!= internal_relocs
)
813 free (internal_relocs
);
815 elf_section_data (sec
)->relocs
= internal_relocs
;
820 struct elfNN_ia64_allocate_data data
;
821 data
.info
= link_info
;
823 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
825 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
826 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
827 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
828 ia64_info
->root
.sgot
->size
= data
.ofs
;
830 if (ia64_info
->root
.dynamic_sections_created
831 && ia64_info
->root
.srelgot
!= NULL
)
833 /* Resize .rela.got. */
834 ia64_info
->root
.srelgot
->size
= 0;
835 if (link_info
->shared
836 && ia64_info
->self_dtpmod_offset
!= (bfd_vma
) -1)
837 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
838 data
.only_got
= TRUE
;
839 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_dynrel_entries
,
844 if (link_info
->relax_pass
== 0)
846 /* Pass 0 is only needed to relax br. */
847 sec
->skip_relax_pass_0
= skip_relax_pass_0
;
848 sec
->skip_relax_pass_1
= skip_relax_pass_1
;
851 *again
= changed_contents
|| changed_relocs
;
855 if (isymbuf
!= NULL
&& (unsigned char *) isymbuf
!= symtab_hdr
->contents
)
858 && elf_section_data (sec
)->this_hdr
.contents
!= contents
)
860 if (internal_relocs
!= NULL
861 && elf_section_data (sec
)->relocs
!= internal_relocs
)
862 free (internal_relocs
);
865 #undef skip_relax_pass_0
866 #undef skip_relax_pass_1
868 /* Return TRUE if NAME is an unwind table section name. */
870 static inline bfd_boolean
871 is_unwind_section_name (bfd
*abfd
, const char *name
)
873 if (elfNN_ia64_hpux_vec (abfd
->xvec
)
874 && !strcmp (name
, ELF_STRING_ia64_unwind_hdr
))
877 return ((CONST_STRNEQ (name
, ELF_STRING_ia64_unwind
)
878 && ! CONST_STRNEQ (name
, ELF_STRING_ia64_unwind_info
))
879 || CONST_STRNEQ (name
, ELF_STRING_ia64_unwind_once
));
882 /* Handle an IA-64 specific section when reading an object file. This
883 is called when bfd_section_from_shdr finds a section with an unknown
887 elfNN_ia64_section_from_shdr (bfd
*abfd
,
888 Elf_Internal_Shdr
*hdr
,
892 /* There ought to be a place to keep ELF backend specific flags, but
893 at the moment there isn't one. We just keep track of the
894 sections by their name, instead. Fortunately, the ABI gives
895 suggested names for all the MIPS specific sections, so we will
896 probably get away with this. */
897 switch (hdr
->sh_type
)
899 case SHT_IA_64_UNWIND
:
900 case SHT_IA_64_HP_OPT_ANOT
:
904 if (strcmp (name
, ELF_STRING_ia64_archext
) != 0)
912 if (! _bfd_elf_make_section_from_shdr (abfd
, hdr
, name
, shindex
))
918 /* Convert IA-64 specific section flags to bfd internal section flags. */
920 /* ??? There is no bfd internal flag equivalent to the SHF_IA_64_NORECOV
924 elfNN_ia64_section_flags (flagword
*flags
,
925 const Elf_Internal_Shdr
*hdr
)
927 if (hdr
->sh_flags
& SHF_IA_64_SHORT
)
928 *flags
|= SEC_SMALL_DATA
;
933 /* Set the correct type for an IA-64 ELF section. We do this by the
934 section name, which is a hack, but ought to work. */
937 elfNN_ia64_fake_sections (bfd
*abfd
, Elf_Internal_Shdr
*hdr
,
942 name
= bfd_get_section_name (abfd
, sec
);
944 if (is_unwind_section_name (abfd
, name
))
946 /* We don't have the sections numbered at this point, so sh_info
947 is set later, in elfNN_ia64_final_write_processing. */
948 hdr
->sh_type
= SHT_IA_64_UNWIND
;
949 hdr
->sh_flags
|= SHF_LINK_ORDER
;
951 else if (strcmp (name
, ELF_STRING_ia64_archext
) == 0)
952 hdr
->sh_type
= SHT_IA_64_EXT
;
953 else if (strcmp (name
, ".HP.opt_annot") == 0)
954 hdr
->sh_type
= SHT_IA_64_HP_OPT_ANOT
;
955 else if (strcmp (name
, ".reloc") == 0)
956 /* This is an ugly, but unfortunately necessary hack that is
957 needed when producing EFI binaries on IA-64. It tells
958 elf.c:elf_fake_sections() not to consider ".reloc" as a section
959 containing ELF relocation info. We need this hack in order to
960 be able to generate ELF binaries that can be translated into
961 EFI applications (which are essentially COFF objects). Those
962 files contain a COFF ".reloc" section inside an ELFNN object,
963 which would normally cause BFD to segfault because it would
964 attempt to interpret this section as containing relocation
965 entries for section "oc". With this hack enabled, ".reloc"
966 will be treated as a normal data section, which will avoid the
967 segfault. However, you won't be able to create an ELFNN binary
968 with a section named "oc" that needs relocations, but that's
969 the kind of ugly side-effects you get when detecting section
970 types based on their names... In practice, this limitation is
972 hdr
->sh_type
= SHT_PROGBITS
;
974 if (sec
->flags
& SEC_SMALL_DATA
)
975 hdr
->sh_flags
|= SHF_IA_64_SHORT
;
977 /* Some HP linkers look for the SHF_IA_64_HP_TLS flag instead of SHF_TLS. */
979 if (elfNN_ia64_hpux_vec (abfd
->xvec
) && (sec
->flags
& SHF_TLS
))
980 hdr
->sh_flags
|= SHF_IA_64_HP_TLS
;
985 /* The final processing done just before writing out an IA-64 ELF
989 elfNN_ia64_final_write_processing (bfd
*abfd
,
990 bfd_boolean linker ATTRIBUTE_UNUSED
)
992 Elf_Internal_Shdr
*hdr
;
995 for (s
= abfd
->sections
; s
; s
= s
->next
)
997 hdr
= &elf_section_data (s
)->this_hdr
;
998 switch (hdr
->sh_type
)
1000 case SHT_IA_64_UNWIND
:
1001 /* The IA-64 processor-specific ABI requires setting sh_link
1002 to the unwind section, whereas HP-UX requires sh_info to
1003 do so. For maximum compatibility, we'll set both for
1005 hdr
->sh_info
= hdr
->sh_link
;
1010 if (! elf_flags_init (abfd
))
1012 unsigned long flags
= 0;
1014 if (abfd
->xvec
->byteorder
== BFD_ENDIAN_BIG
)
1015 flags
|= EF_IA_64_BE
;
1016 if (bfd_get_mach (abfd
) == bfd_mach_ia64_elf64
)
1017 flags
|= EF_IA_64_ABI64
;
1019 elf_elfheader(abfd
)->e_flags
= flags
;
1020 elf_flags_init (abfd
) = TRUE
;
1024 /* Hook called by the linker routine which adds symbols from an object
1025 file. We use it to put .comm items in .sbss, and not .bss. */
1028 elfNN_ia64_add_symbol_hook (bfd
*abfd
,
1029 struct bfd_link_info
*info
,
1030 Elf_Internal_Sym
*sym
,
1031 const char **namep ATTRIBUTE_UNUSED
,
1032 flagword
*flagsp ATTRIBUTE_UNUSED
,
1036 if (sym
->st_shndx
== SHN_COMMON
1037 && !info
->relocatable
1038 && sym
->st_size
<= elf_gp_size (abfd
))
1040 /* Common symbols less than or equal to -G nn bytes are
1041 automatically put into .sbss. */
1043 asection
*scomm
= bfd_get_section_by_name (abfd
, ".scommon");
1047 scomm
= bfd_make_section_with_flags (abfd
, ".scommon",
1050 | SEC_LINKER_CREATED
));
1056 *valp
= sym
->st_size
;
1062 /* Return the number of additional phdrs we will need. */
1065 elfNN_ia64_additional_program_headers (bfd
*abfd
,
1066 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
1071 /* See if we need a PT_IA_64_ARCHEXT segment. */
1072 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1073 if (s
&& (s
->flags
& SEC_LOAD
))
1076 /* Count how many PT_IA_64_UNWIND segments we need. */
1077 for (s
= abfd
->sections
; s
; s
= s
->next
)
1078 if (is_unwind_section_name (abfd
, s
->name
) && (s
->flags
& SEC_LOAD
))
1085 elfNN_ia64_modify_segment_map (bfd
*abfd
,
1086 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
1088 struct elf_segment_map
*m
, **pm
;
1089 Elf_Internal_Shdr
*hdr
;
1092 /* If we need a PT_IA_64_ARCHEXT segment, it must come before
1093 all PT_LOAD segments. */
1094 s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_archext
);
1095 if (s
&& (s
->flags
& SEC_LOAD
))
1097 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1098 if (m
->p_type
== PT_IA_64_ARCHEXT
)
1102 m
= ((struct elf_segment_map
*)
1103 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1107 m
->p_type
= PT_IA_64_ARCHEXT
;
1111 /* We want to put it after the PHDR and INTERP segments. */
1112 pm
= &elf_tdata (abfd
)->segment_map
;
1114 && ((*pm
)->p_type
== PT_PHDR
1115 || (*pm
)->p_type
== PT_INTERP
))
1123 /* Install PT_IA_64_UNWIND segments, if needed. */
1124 for (s
= abfd
->sections
; s
; s
= s
->next
)
1126 hdr
= &elf_section_data (s
)->this_hdr
;
1127 if (hdr
->sh_type
!= SHT_IA_64_UNWIND
)
1130 if (s
&& (s
->flags
& SEC_LOAD
))
1132 for (m
= elf_tdata (abfd
)->segment_map
; m
!= NULL
; m
= m
->next
)
1133 if (m
->p_type
== PT_IA_64_UNWIND
)
1137 /* Look through all sections in the unwind segment
1138 for a match since there may be multiple sections
1140 for (i
= m
->count
- 1; i
>= 0; --i
)
1141 if (m
->sections
[i
] == s
)
1150 m
= ((struct elf_segment_map
*)
1151 bfd_zalloc (abfd
, (bfd_size_type
) sizeof *m
));
1155 m
->p_type
= PT_IA_64_UNWIND
;
1160 /* We want to put it last. */
1161 pm
= &elf_tdata (abfd
)->segment_map
;
1172 /* Turn on PF_IA_64_NORECOV if needed. This involves traversing all of
1173 the input sections for each output section in the segment and testing
1174 for SHF_IA_64_NORECOV on each. */
1177 elfNN_ia64_modify_program_headers (bfd
*abfd
,
1178 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
1180 struct elf_obj_tdata
*tdata
= elf_tdata (abfd
);
1181 struct elf_segment_map
*m
;
1182 Elf_Internal_Phdr
*p
;
1184 for (p
= tdata
->phdr
, m
= tdata
->segment_map
; m
!= NULL
; m
= m
->next
, p
++)
1185 if (m
->p_type
== PT_LOAD
)
1188 for (i
= m
->count
- 1; i
>= 0; --i
)
1190 struct bfd_link_order
*order
= m
->sections
[i
]->map_head
.link_order
;
1192 while (order
!= NULL
)
1194 if (order
->type
== bfd_indirect_link_order
)
1196 asection
*is
= order
->u
.indirect
.section
;
1197 bfd_vma flags
= elf_section_data(is
)->this_hdr
.sh_flags
;
1198 if (flags
& SHF_IA_64_NORECOV
)
1200 p
->p_flags
|= PF_IA_64_NORECOV
;
1204 order
= order
->next
;
1213 /* According to the Tahoe assembler spec, all labels starting with a
1217 elfNN_ia64_is_local_label_name (bfd
*abfd ATTRIBUTE_UNUSED
,
1220 return name
[0] == '.';
1223 /* Should we do dynamic things to this symbol? */
1226 elfNN_ia64_dynamic_symbol_p (struct elf_link_hash_entry
*h
,
1227 struct bfd_link_info
*info
, int r_type
)
1229 bfd_boolean ignore_protected
1230 = ((r_type
& 0xf8) == 0x40 /* FPTR relocs */
1231 || (r_type
& 0xf8) == 0x50); /* LTOFF_FPTR relocs */
1233 return _bfd_elf_dynamic_symbol_p (h
, info
, ignore_protected
);
1236 static struct bfd_hash_entry
*
1237 elfNN_ia64_new_elf_hash_entry (struct bfd_hash_entry
*entry
,
1238 struct bfd_hash_table
*table
,
1241 struct elfNN_ia64_link_hash_entry
*ret
;
1242 ret
= (struct elfNN_ia64_link_hash_entry
*) entry
;
1244 /* Allocate the structure if it has not already been allocated by a
1247 ret
= bfd_hash_allocate (table
, sizeof (*ret
));
1252 /* Call the allocation method of the superclass. */
1253 ret
= ((struct elfNN_ia64_link_hash_entry
*)
1254 _bfd_elf_link_hash_newfunc ((struct bfd_hash_entry
*) ret
,
1259 ret
->sorted_count
= 0;
1261 return (struct bfd_hash_entry
*) ret
;
1265 elfNN_ia64_hash_copy_indirect (struct bfd_link_info
*info
,
1266 struct elf_link_hash_entry
*xdir
,
1267 struct elf_link_hash_entry
*xind
)
1269 struct elfNN_ia64_link_hash_entry
*dir
, *ind
;
1271 dir
= (struct elfNN_ia64_link_hash_entry
*) xdir
;
1272 ind
= (struct elfNN_ia64_link_hash_entry
*) xind
;
1274 /* Copy down any references that we may have already seen to the
1275 symbol which just became indirect. */
1277 dir
->root
.ref_dynamic
|= ind
->root
.ref_dynamic
;
1278 dir
->root
.ref_regular
|= ind
->root
.ref_regular
;
1279 dir
->root
.ref_regular_nonweak
|= ind
->root
.ref_regular_nonweak
;
1280 dir
->root
.needs_plt
|= ind
->root
.needs_plt
;
1282 if (ind
->root
.root
.type
!= bfd_link_hash_indirect
)
1285 /* Copy over the got and plt data. This would have been done
1288 if (ind
->info
!= NULL
)
1290 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1296 dir
->info
= ind
->info
;
1297 dir
->count
= ind
->count
;
1298 dir
->sorted_count
= ind
->sorted_count
;
1299 dir
->size
= ind
->size
;
1303 ind
->sorted_count
= 0;
1306 /* Fix up the dyn_sym_info pointers to the global symbol. */
1307 for (count
= dir
->count
, dyn_i
= dir
->info
;
1310 dyn_i
->h
= &dir
->root
;
1313 /* Copy over the dynindx. */
1315 if (ind
->root
.dynindx
!= -1)
1317 if (dir
->root
.dynindx
!= -1)
1318 _bfd_elf_strtab_delref (elf_hash_table (info
)->dynstr
,
1319 dir
->root
.dynstr_index
);
1320 dir
->root
.dynindx
= ind
->root
.dynindx
;
1321 dir
->root
.dynstr_index
= ind
->root
.dynstr_index
;
1322 ind
->root
.dynindx
= -1;
1323 ind
->root
.dynstr_index
= 0;
1328 elfNN_ia64_hash_hide_symbol (struct bfd_link_info
*info
,
1329 struct elf_link_hash_entry
*xh
,
1330 bfd_boolean force_local
)
1332 struct elfNN_ia64_link_hash_entry
*h
;
1333 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1336 h
= (struct elfNN_ia64_link_hash_entry
*)xh
;
1338 _bfd_elf_link_hash_hide_symbol (info
, &h
->root
, force_local
);
1340 for (count
= h
->count
, dyn_i
= h
->info
;
1344 dyn_i
->want_plt2
= 0;
1345 dyn_i
->want_plt
= 0;
1349 /* Compute a hash of a local hash entry. */
1352 elfNN_ia64_local_htab_hash (const void *ptr
)
1354 struct elfNN_ia64_local_hash_entry
*entry
1355 = (struct elfNN_ia64_local_hash_entry
*) ptr
;
1357 return ELF_LOCAL_SYMBOL_HASH (entry
->id
, entry
->r_sym
);
1360 /* Compare local hash entries. */
1363 elfNN_ia64_local_htab_eq (const void *ptr1
, const void *ptr2
)
1365 struct elfNN_ia64_local_hash_entry
*entry1
1366 = (struct elfNN_ia64_local_hash_entry
*) ptr1
;
1367 struct elfNN_ia64_local_hash_entry
*entry2
1368 = (struct elfNN_ia64_local_hash_entry
*) ptr2
;
1370 return entry1
->id
== entry2
->id
&& entry1
->r_sym
== entry2
->r_sym
;
1373 /* Create the derived linker hash table. The IA-64 ELF port uses this
1374 derived hash table to keep information specific to the IA-64 ElF
1375 linker (without using static variables). */
1377 static struct bfd_link_hash_table
*
1378 elfNN_ia64_hash_table_create (bfd
*abfd
)
1380 struct elfNN_ia64_link_hash_table
*ret
;
1382 ret
= bfd_zmalloc ((bfd_size_type
) sizeof (*ret
));
1386 if (!_bfd_elf_link_hash_table_init (&ret
->root
, abfd
,
1387 elfNN_ia64_new_elf_hash_entry
,
1388 sizeof (struct elfNN_ia64_link_hash_entry
),
1395 ret
->loc_hash_table
= htab_try_create (1024, elfNN_ia64_local_htab_hash
,
1396 elfNN_ia64_local_htab_eq
, NULL
);
1397 ret
->loc_hash_memory
= objalloc_create ();
1398 if (!ret
->loc_hash_table
|| !ret
->loc_hash_memory
)
1404 return &ret
->root
.root
;
1407 /* Free the global elfNN_ia64_dyn_sym_info array. */
1410 elfNN_ia64_global_dyn_info_free (void **xentry
,
1411 PTR unused ATTRIBUTE_UNUSED
)
1413 struct elfNN_ia64_link_hash_entry
*entry
1414 = (struct elfNN_ia64_link_hash_entry
*) xentry
;
1421 entry
->sorted_count
= 0;
1428 /* Free the local elfNN_ia64_dyn_sym_info array. */
1431 elfNN_ia64_local_dyn_info_free (void **slot
,
1432 PTR unused ATTRIBUTE_UNUSED
)
1434 struct elfNN_ia64_local_hash_entry
*entry
1435 = (struct elfNN_ia64_local_hash_entry
*) *slot
;
1442 entry
->sorted_count
= 0;
1449 /* Destroy IA-64 linker hash table. */
1452 elfNN_ia64_hash_table_free (struct bfd_link_hash_table
*hash
)
1454 struct elfNN_ia64_link_hash_table
*ia64_info
1455 = (struct elfNN_ia64_link_hash_table
*) hash
;
1456 if (ia64_info
->loc_hash_table
)
1458 htab_traverse (ia64_info
->loc_hash_table
,
1459 elfNN_ia64_local_dyn_info_free
, NULL
);
1460 htab_delete (ia64_info
->loc_hash_table
);
1462 if (ia64_info
->loc_hash_memory
)
1463 objalloc_free ((struct objalloc
*) ia64_info
->loc_hash_memory
);
1464 elf_link_hash_traverse (&ia64_info
->root
,
1465 elfNN_ia64_global_dyn_info_free
, NULL
);
1466 _bfd_generic_link_hash_table_free (hash
);
1469 /* Traverse both local and global hash tables. */
1471 struct elfNN_ia64_dyn_sym_traverse_data
1473 bfd_boolean (*func
) (struct elfNN_ia64_dyn_sym_info
*, PTR
);
1478 elfNN_ia64_global_dyn_sym_thunk (struct bfd_hash_entry
*xentry
,
1481 struct elfNN_ia64_link_hash_entry
*entry
1482 = (struct elfNN_ia64_link_hash_entry
*) xentry
;
1483 struct elfNN_ia64_dyn_sym_traverse_data
*data
1484 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1485 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1488 for (count
= entry
->count
, dyn_i
= entry
->info
;
1491 if (! (*data
->func
) (dyn_i
, data
->data
))
1497 elfNN_ia64_local_dyn_sym_thunk (void **slot
, PTR xdata
)
1499 struct elfNN_ia64_local_hash_entry
*entry
1500 = (struct elfNN_ia64_local_hash_entry
*) *slot
;
1501 struct elfNN_ia64_dyn_sym_traverse_data
*data
1502 = (struct elfNN_ia64_dyn_sym_traverse_data
*) xdata
;
1503 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
1506 for (count
= entry
->count
, dyn_i
= entry
->info
;
1509 if (! (*data
->func
) (dyn_i
, data
->data
))
1515 elfNN_ia64_dyn_sym_traverse (struct elfNN_ia64_link_hash_table
*ia64_info
,
1516 bfd_boolean (*func
) (struct elfNN_ia64_dyn_sym_info
*, PTR
),
1519 struct elfNN_ia64_dyn_sym_traverse_data xdata
;
1524 elf_link_hash_traverse (&ia64_info
->root
,
1525 elfNN_ia64_global_dyn_sym_thunk
, &xdata
);
1526 htab_traverse (ia64_info
->loc_hash_table
,
1527 elfNN_ia64_local_dyn_sym_thunk
, &xdata
);
1531 elfNN_ia64_create_dynamic_sections (bfd
*abfd
,
1532 struct bfd_link_info
*info
)
1534 struct elfNN_ia64_link_hash_table
*ia64_info
;
1537 if (! _bfd_elf_create_dynamic_sections (abfd
, info
))
1540 ia64_info
= elfNN_ia64_hash_table (info
);
1541 if (ia64_info
== NULL
)
1545 flagword flags
= bfd_get_section_flags (abfd
, ia64_info
->root
.sgot
);
1546 bfd_set_section_flags (abfd
, ia64_info
->root
.sgot
,
1547 SEC_SMALL_DATA
| flags
);
1548 /* The .got section is always aligned at 8 bytes. */
1549 bfd_set_section_alignment (abfd
, ia64_info
->root
.sgot
, 3);
1552 if (!get_pltoff (abfd
, info
, ia64_info
))
1555 s
= bfd_make_section_with_flags (abfd
, ".rela.IA_64.pltoff",
1556 (SEC_ALLOC
| SEC_LOAD
1559 | SEC_LINKER_CREATED
1562 || !bfd_set_section_alignment (abfd
, s
, LOG_SECTION_ALIGN
))
1564 ia64_info
->rel_pltoff_sec
= s
;
1569 /* Find and/or create a hash entry for local symbol. */
1570 static struct elfNN_ia64_local_hash_entry
*
1571 get_local_sym_hash (struct elfNN_ia64_link_hash_table
*ia64_info
,
1572 bfd
*abfd
, const Elf_Internal_Rela
*rel
,
1575 struct elfNN_ia64_local_hash_entry e
, *ret
;
1576 asection
*sec
= abfd
->sections
;
1577 hashval_t h
= ELF_LOCAL_SYMBOL_HASH (sec
->id
,
1578 ELFNN_R_SYM (rel
->r_info
));
1582 e
.r_sym
= ELFNN_R_SYM (rel
->r_info
);
1583 slot
= htab_find_slot_with_hash (ia64_info
->loc_hash_table
, &e
, h
,
1584 create
? INSERT
: NO_INSERT
);
1590 return (struct elfNN_ia64_local_hash_entry
*) *slot
;
1592 ret
= (struct elfNN_ia64_local_hash_entry
*)
1593 objalloc_alloc ((struct objalloc
*) ia64_info
->loc_hash_memory
,
1594 sizeof (struct elfNN_ia64_local_hash_entry
));
1597 memset (ret
, 0, sizeof (*ret
));
1599 ret
->r_sym
= ELFNN_R_SYM (rel
->r_info
);
1605 /* Used to sort elfNN_ia64_dyn_sym_info array. */
1608 addend_compare (const void *xp
, const void *yp
)
1610 const struct elfNN_ia64_dyn_sym_info
*x
1611 = (const struct elfNN_ia64_dyn_sym_info
*) xp
;
1612 const struct elfNN_ia64_dyn_sym_info
*y
1613 = (const struct elfNN_ia64_dyn_sym_info
*) yp
;
1615 return x
->addend
< y
->addend
? -1 : x
->addend
> y
->addend
? 1 : 0;
1618 /* Sort elfNN_ia64_dyn_sym_info array and remove duplicates. */
1621 sort_dyn_sym_info (struct elfNN_ia64_dyn_sym_info
*info
,
1624 bfd_vma curr
, prev
, got_offset
;
1625 unsigned int i
, kept
, dupes
, diff
, dest
, src
, len
;
1627 qsort (info
, count
, sizeof (*info
), addend_compare
);
1629 /* Find the first duplicate. */
1630 prev
= info
[0].addend
;
1631 got_offset
= info
[0].got_offset
;
1632 for (i
= 1; i
< count
; i
++)
1634 curr
= info
[i
].addend
;
1637 /* For duplicates, make sure that GOT_OFFSET is valid. */
1638 if (got_offset
== (bfd_vma
) -1)
1639 got_offset
= info
[i
].got_offset
;
1642 got_offset
= info
[i
].got_offset
;
1646 /* We may move a block of elements to here. */
1649 /* Remove duplicates. */
1654 /* For duplicates, make sure that the kept one has a valid
1657 if (got_offset
!= (bfd_vma
) -1)
1658 info
[kept
].got_offset
= got_offset
;
1660 curr
= info
[i
].addend
;
1661 got_offset
= info
[i
].got_offset
;
1663 /* Move a block of elements whose first one is different from
1667 for (src
= i
+ 1; src
< count
; src
++)
1669 if (info
[src
].addend
!= curr
)
1671 /* For duplicates, make sure that GOT_OFFSET is
1673 if (got_offset
== (bfd_vma
) -1)
1674 got_offset
= info
[src
].got_offset
;
1677 /* Make sure that the kept one has a valid got_offset. */
1678 if (got_offset
!= (bfd_vma
) -1)
1679 info
[kept
].got_offset
= got_offset
;
1687 /* Find the next duplicate. SRC will be kept. */
1688 prev
= info
[src
].addend
;
1689 got_offset
= info
[src
].got_offset
;
1690 for (dupes
= src
+ 1; dupes
< count
; dupes
++)
1692 curr
= info
[dupes
].addend
;
1695 /* Make sure that got_offset is valid. */
1696 if (got_offset
== (bfd_vma
) -1)
1697 got_offset
= info
[dupes
].got_offset
;
1699 /* For duplicates, make sure that the kept one has
1700 a valid got_offset. */
1701 if (got_offset
!= (bfd_vma
) -1)
1702 info
[dupes
- 1].got_offset
= got_offset
;
1705 got_offset
= info
[dupes
].got_offset
;
1709 /* How much to move. */
1713 if (len
== 1 && dupes
< count
)
1715 /* If we only move 1 element, we combine it with the next
1716 one. There must be at least a duplicate. Find the
1717 next different one. */
1718 for (diff
= dupes
+ 1, src
++; diff
< count
; diff
++, src
++)
1720 if (info
[diff
].addend
!= curr
)
1722 /* Make sure that got_offset is valid. */
1723 if (got_offset
== (bfd_vma
) -1)
1724 got_offset
= info
[diff
].got_offset
;
1727 /* Makre sure that the last duplicated one has an valid
1729 BFD_ASSERT (curr
== prev
);
1730 if (got_offset
!= (bfd_vma
) -1)
1731 info
[diff
- 1].got_offset
= got_offset
;
1735 /* Find the next duplicate. Track the current valid
1737 prev
= info
[diff
].addend
;
1738 got_offset
= info
[diff
].got_offset
;
1739 for (dupes
= diff
+ 1; dupes
< count
; dupes
++)
1741 curr
= info
[dupes
].addend
;
1744 /* For duplicates, make sure that GOT_OFFSET
1746 if (got_offset
== (bfd_vma
) -1)
1747 got_offset
= info
[dupes
].got_offset
;
1750 got_offset
= info
[dupes
].got_offset
;
1755 len
= diff
- src
+ 1;
1760 memmove (&info
[dest
], &info
[src
], len
* sizeof (*info
));
1769 /* When we get here, either there is no duplicate at all or
1770 the only duplicate is the last element. */
1773 /* If the last element is a duplicate, make sure that the
1774 kept one has a valid got_offset. We also update count. */
1775 if (got_offset
!= (bfd_vma
) -1)
1776 info
[dest
- 1].got_offset
= got_offset
;
1784 /* Find and/or create a descriptor for dynamic symbol info. This will
1785 vary based on global or local symbol, and the addend to the reloc.
1787 We don't sort when inserting. Also, we sort and eliminate
1788 duplicates if there is an unsorted section. Typically, this will
1789 only happen once, because we do all insertions before lookups. We
1790 then use bsearch to do a lookup. This also allows lookups to be
1791 fast. So we have fast insertion (O(log N) due to duplicate check),
1792 fast lookup (O(log N)) and one sort (O(N log N) expected time).
1793 Previously, all lookups were O(N) because of the use of the linked
1794 list and also all insertions were O(N) because of the check for
1795 duplicates. There are some complications here because the array
1796 size grows occasionally, which may add an O(N) factor, but this
1797 should be rare. Also, we free the excess array allocation, which
1798 requires a copy which is O(N), but this only happens once. */
1800 static struct elfNN_ia64_dyn_sym_info
*
1801 get_dyn_sym_info (struct elfNN_ia64_link_hash_table
*ia64_info
,
1802 struct elf_link_hash_entry
*h
, bfd
*abfd
,
1803 const Elf_Internal_Rela
*rel
, bfd_boolean create
)
1805 struct elfNN_ia64_dyn_sym_info
**info_p
, *info
, *dyn_i
, key
;
1806 unsigned int *count_p
, *sorted_count_p
, *size_p
;
1807 unsigned int count
, sorted_count
, size
;
1808 bfd_vma addend
= rel
? rel
->r_addend
: 0;
1813 struct elfNN_ia64_link_hash_entry
*global_h
;
1815 global_h
= (struct elfNN_ia64_link_hash_entry
*) h
;
1816 info_p
= &global_h
->info
;
1817 count_p
= &global_h
->count
;
1818 sorted_count_p
= &global_h
->sorted_count
;
1819 size_p
= &global_h
->size
;
1823 struct elfNN_ia64_local_hash_entry
*loc_h
;
1825 loc_h
= get_local_sym_hash (ia64_info
, abfd
, rel
, create
);
1828 BFD_ASSERT (!create
);
1832 info_p
= &loc_h
->info
;
1833 count_p
= &loc_h
->count
;
1834 sorted_count_p
= &loc_h
->sorted_count
;
1835 size_p
= &loc_h
->size
;
1839 sorted_count
= *sorted_count_p
;
1844 /* When we create the array, we don't check for duplicates,
1845 except in the previously sorted section if one exists, and
1846 against the last inserted entry. This allows insertions to
1852 /* Try bsearch first on the sorted section. */
1853 key
.addend
= addend
;
1854 dyn_i
= bsearch (&key
, info
, sorted_count
,
1855 sizeof (*info
), addend_compare
);
1863 /* Do a quick check for the last inserted entry. */
1864 dyn_i
= info
+ count
- 1;
1865 if (dyn_i
->addend
== addend
)
1873 /* It is the very first element. We create the array of size
1876 amt
= size
* sizeof (*info
);
1877 info
= bfd_malloc (amt
);
1879 else if (size
<= count
)
1881 /* We double the array size every time when we reach the
1884 amt
= size
* sizeof (*info
);
1885 info
= bfd_realloc (info
, amt
);
1896 /* Append the new one to the array. */
1897 dyn_i
= info
+ count
;
1898 memset (dyn_i
, 0, sizeof (*dyn_i
));
1899 dyn_i
->got_offset
= (bfd_vma
) -1;
1900 dyn_i
->addend
= addend
;
1902 /* We increment count only since the new ones are unsorted and
1903 may have duplicate. */
1908 /* It is a lookup without insertion. Sort array if part of the
1909 array isn't sorted. */
1910 if (count
!= sorted_count
)
1912 count
= sort_dyn_sym_info (info
, count
);
1914 *sorted_count_p
= count
;
1917 /* Free unused memory. */
1920 amt
= count
* sizeof (*info
);
1921 info
= bfd_malloc (amt
);
1924 memcpy (info
, *info_p
, amt
);
1931 key
.addend
= addend
;
1932 dyn_i
= bsearch (&key
, info
, count
,
1933 sizeof (*info
), addend_compare
);
1940 get_got (bfd
*abfd
, struct bfd_link_info
*info
,
1941 struct elfNN_ia64_link_hash_table
*ia64_info
)
1946 got
= ia64_info
->root
.sgot
;
1951 dynobj
= ia64_info
->root
.dynobj
;
1953 ia64_info
->root
.dynobj
= dynobj
= abfd
;
1954 if (!_bfd_elf_create_got_section (dynobj
, info
))
1957 got
= ia64_info
->root
.sgot
;
1959 /* The .got section is always aligned at 8 bytes. */
1960 if (!bfd_set_section_alignment (abfd
, got
, 3))
1963 flags
= bfd_get_section_flags (abfd
, got
);
1964 bfd_set_section_flags (abfd
, got
, SEC_SMALL_DATA
| flags
);
1970 /* Create function descriptor section (.opd). This section is called .opd
1971 because it contains "official procedure descriptors". The "official"
1972 refers to the fact that these descriptors are used when taking the address
1973 of a procedure, thus ensuring a unique address for each procedure. */
1976 get_fptr (bfd
*abfd
, struct bfd_link_info
*info
,
1977 struct elfNN_ia64_link_hash_table
*ia64_info
)
1982 fptr
= ia64_info
->fptr_sec
;
1985 dynobj
= ia64_info
->root
.dynobj
;
1987 ia64_info
->root
.dynobj
= dynobj
= abfd
;
1989 fptr
= bfd_make_section_with_flags (dynobj
, ".opd",
1994 | (info
->pie
? 0 : SEC_READONLY
)
1995 | SEC_LINKER_CREATED
));
1997 || !bfd_set_section_alignment (abfd
, fptr
, 4))
2003 ia64_info
->fptr_sec
= fptr
;
2008 fptr_rel
= bfd_make_section_with_flags (dynobj
, ".rela.opd",
2009 (SEC_ALLOC
| SEC_LOAD
2012 | SEC_LINKER_CREATED
2014 if (fptr_rel
== NULL
2015 || !bfd_set_section_alignment (abfd
, fptr_rel
,
2022 ia64_info
->rel_fptr_sec
= fptr_rel
;
2030 get_pltoff (bfd
*abfd
, struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2031 struct elfNN_ia64_link_hash_table
*ia64_info
)
2036 pltoff
= ia64_info
->pltoff_sec
;
2039 dynobj
= ia64_info
->root
.dynobj
;
2041 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2043 pltoff
= bfd_make_section_with_flags (dynobj
,
2044 ELF_STRING_ia64_pltoff
,
2050 | SEC_LINKER_CREATED
));
2052 || !bfd_set_section_alignment (abfd
, pltoff
, 4))
2058 ia64_info
->pltoff_sec
= pltoff
;
2065 get_reloc_section (bfd
*abfd
,
2066 struct elfNN_ia64_link_hash_table
*ia64_info
,
2067 asection
*sec
, bfd_boolean create
)
2069 const char *srel_name
;
2073 srel_name
= (bfd_elf_string_from_elf_section
2074 (abfd
, elf_elfheader(abfd
)->e_shstrndx
,
2075 _bfd_elf_single_rel_hdr (sec
)->sh_name
));
2076 if (srel_name
== NULL
)
2079 dynobj
= ia64_info
->root
.dynobj
;
2081 ia64_info
->root
.dynobj
= dynobj
= abfd
;
2083 srel
= bfd_get_section_by_name (dynobj
, srel_name
);
2084 if (srel
== NULL
&& create
)
2086 srel
= bfd_make_section_with_flags (dynobj
, srel_name
,
2087 (SEC_ALLOC
| SEC_LOAD
2090 | SEC_LINKER_CREATED
2093 || !bfd_set_section_alignment (dynobj
, srel
,
2102 count_dyn_reloc (bfd
*abfd
, struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2103 asection
*srel
, int type
, bfd_boolean reltext
)
2105 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2107 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2108 if (rent
->srel
== srel
&& rent
->type
== type
)
2113 rent
= ((struct elfNN_ia64_dyn_reloc_entry
*)
2114 bfd_alloc (abfd
, (bfd_size_type
) sizeof (*rent
)));
2118 rent
->next
= dyn_i
->reloc_entries
;
2122 dyn_i
->reloc_entries
= rent
;
2124 rent
->reltext
= reltext
;
2131 elfNN_ia64_check_relocs (bfd
*abfd
, struct bfd_link_info
*info
,
2133 const Elf_Internal_Rela
*relocs
)
2135 struct elfNN_ia64_link_hash_table
*ia64_info
;
2136 const Elf_Internal_Rela
*relend
;
2137 Elf_Internal_Shdr
*symtab_hdr
;
2138 const Elf_Internal_Rela
*rel
;
2139 asection
*got
, *fptr
, *srel
, *pltoff
;
2148 NEED_LTOFF_FPTR
= 128,
2154 struct elf_link_hash_entry
*h
;
2155 unsigned long r_symndx
;
2156 bfd_boolean maybe_dynamic
;
2158 if (info
->relocatable
)
2161 symtab_hdr
= &elf_tdata (abfd
)->symtab_hdr
;
2162 ia64_info
= elfNN_ia64_hash_table (info
);
2163 if (ia64_info
== NULL
)
2166 got
= fptr
= srel
= pltoff
= NULL
;
2168 relend
= relocs
+ sec
->reloc_count
;
2170 /* We scan relocations first to create dynamic relocation arrays. We
2171 modified get_dyn_sym_info to allow fast insertion and support fast
2172 lookup in the next loop. */
2173 for (rel
= relocs
; rel
< relend
; ++rel
)
2175 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
2176 if (r_symndx
>= symtab_hdr
->sh_info
)
2178 long indx
= r_symndx
- symtab_hdr
->sh_info
;
2179 h
= elf_sym_hashes (abfd
)[indx
];
2180 while (h
->root
.type
== bfd_link_hash_indirect
2181 || h
->root
.type
== bfd_link_hash_warning
)
2182 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2187 /* We can only get preliminary data on whether a symbol is
2188 locally or externally defined, as not all of the input files
2189 have yet been processed. Do something with what we know, as
2190 this may help reduce memory usage and processing time later. */
2191 maybe_dynamic
= (h
&& ((!info
->executable
2192 && (!SYMBOLIC_BIND (info
, h
)
2193 || info
->unresolved_syms_in_shared_libs
== RM_IGNORE
))
2195 || h
->root
.type
== bfd_link_hash_defweak
));
2198 switch (ELFNN_R_TYPE (rel
->r_info
))
2200 case R_IA64_TPREL64MSB
:
2201 case R_IA64_TPREL64LSB
:
2202 if (info
->shared
|| maybe_dynamic
)
2203 need_entry
= NEED_DYNREL
;
2206 case R_IA64_LTOFF_TPREL22
:
2207 need_entry
= NEED_TPREL
;
2209 info
->flags
|= DF_STATIC_TLS
;
2212 case R_IA64_DTPREL32MSB
:
2213 case R_IA64_DTPREL32LSB
:
2214 case R_IA64_DTPREL64MSB
:
2215 case R_IA64_DTPREL64LSB
:
2216 if (info
->shared
|| maybe_dynamic
)
2217 need_entry
= NEED_DYNREL
;
2220 case R_IA64_LTOFF_DTPREL22
:
2221 need_entry
= NEED_DTPREL
;
2224 case R_IA64_DTPMOD64MSB
:
2225 case R_IA64_DTPMOD64LSB
:
2226 if (info
->shared
|| maybe_dynamic
)
2227 need_entry
= NEED_DYNREL
;
2230 case R_IA64_LTOFF_DTPMOD22
:
2231 need_entry
= NEED_DTPMOD
;
2234 case R_IA64_LTOFF_FPTR22
:
2235 case R_IA64_LTOFF_FPTR64I
:
2236 case R_IA64_LTOFF_FPTR32MSB
:
2237 case R_IA64_LTOFF_FPTR32LSB
:
2238 case R_IA64_LTOFF_FPTR64MSB
:
2239 case R_IA64_LTOFF_FPTR64LSB
:
2240 need_entry
= NEED_FPTR
| NEED_GOT
| NEED_LTOFF_FPTR
;
2243 case R_IA64_FPTR64I
:
2244 case R_IA64_FPTR32MSB
:
2245 case R_IA64_FPTR32LSB
:
2246 case R_IA64_FPTR64MSB
:
2247 case R_IA64_FPTR64LSB
:
2248 if (info
->shared
|| h
)
2249 need_entry
= NEED_FPTR
| NEED_DYNREL
;
2251 need_entry
= NEED_FPTR
;
2254 case R_IA64_LTOFF22
:
2255 case R_IA64_LTOFF64I
:
2256 need_entry
= NEED_GOT
;
2259 case R_IA64_LTOFF22X
:
2260 need_entry
= NEED_GOTX
;
2263 case R_IA64_PLTOFF22
:
2264 case R_IA64_PLTOFF64I
:
2265 case R_IA64_PLTOFF64MSB
:
2266 case R_IA64_PLTOFF64LSB
:
2267 need_entry
= NEED_PLTOFF
;
2271 need_entry
|= NEED_MIN_PLT
;
2275 (*info
->callbacks
->warning
)
2276 (info
, _("@pltoff reloc against local symbol"), 0,
2277 abfd
, 0, (bfd_vma
) 0);
2281 case R_IA64_PCREL21B
:
2282 case R_IA64_PCREL60B
:
2283 /* Depending on where this symbol is defined, we may or may not
2284 need a full plt entry. Only skip if we know we'll not need
2285 the entry -- static or symbolic, and the symbol definition
2286 has already been seen. */
2287 if (maybe_dynamic
&& rel
->r_addend
== 0)
2288 need_entry
= NEED_FULL_PLT
;
2294 case R_IA64_DIR32MSB
:
2295 case R_IA64_DIR32LSB
:
2296 case R_IA64_DIR64MSB
:
2297 case R_IA64_DIR64LSB
:
2298 /* Shared objects will always need at least a REL relocation. */
2299 if (info
->shared
|| maybe_dynamic
)
2300 need_entry
= NEED_DYNREL
;
2303 case R_IA64_IPLTMSB
:
2304 case R_IA64_IPLTLSB
:
2305 /* Shared objects will always need at least a REL relocation. */
2306 if (info
->shared
|| maybe_dynamic
)
2307 need_entry
= NEED_DYNREL
;
2310 case R_IA64_PCREL22
:
2311 case R_IA64_PCREL64I
:
2312 case R_IA64_PCREL32MSB
:
2313 case R_IA64_PCREL32LSB
:
2314 case R_IA64_PCREL64MSB
:
2315 case R_IA64_PCREL64LSB
:
2317 need_entry
= NEED_DYNREL
;
2324 if ((need_entry
& NEED_FPTR
) != 0
2327 (*info
->callbacks
->warning
)
2328 (info
, _("non-zero addend in @fptr reloc"), 0,
2329 abfd
, 0, (bfd_vma
) 0);
2332 if (get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, TRUE
) == NULL
)
2336 /* Now, we only do lookup without insertion, which is very fast
2337 with the modified get_dyn_sym_info. */
2338 for (rel
= relocs
; rel
< relend
; ++rel
)
2340 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
2341 int dynrel_type
= R_IA64_NONE
;
2343 r_symndx
= ELFNN_R_SYM (rel
->r_info
);
2344 if (r_symndx
>= symtab_hdr
->sh_info
)
2346 /* We're dealing with a global symbol -- find its hash entry
2347 and mark it as being referenced. */
2348 long indx
= r_symndx
- symtab_hdr
->sh_info
;
2349 h
= elf_sym_hashes (abfd
)[indx
];
2350 while (h
->root
.type
== bfd_link_hash_indirect
2351 || h
->root
.type
== bfd_link_hash_warning
)
2352 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2359 /* We can only get preliminary data on whether a symbol is
2360 locally or externally defined, as not all of the input files
2361 have yet been processed. Do something with what we know, as
2362 this may help reduce memory usage and processing time later. */
2363 maybe_dynamic
= (h
&& ((!info
->executable
2364 && (!SYMBOLIC_BIND (info
, h
)
2365 || info
->unresolved_syms_in_shared_libs
== RM_IGNORE
))
2367 || h
->root
.type
== bfd_link_hash_defweak
));
2370 switch (ELFNN_R_TYPE (rel
->r_info
))
2372 case R_IA64_TPREL64MSB
:
2373 case R_IA64_TPREL64LSB
:
2374 if (info
->shared
|| maybe_dynamic
)
2375 need_entry
= NEED_DYNREL
;
2376 dynrel_type
= R_IA64_TPREL64LSB
;
2378 info
->flags
|= DF_STATIC_TLS
;
2381 case R_IA64_LTOFF_TPREL22
:
2382 need_entry
= NEED_TPREL
;
2384 info
->flags
|= DF_STATIC_TLS
;
2387 case R_IA64_DTPREL32MSB
:
2388 case R_IA64_DTPREL32LSB
:
2389 case R_IA64_DTPREL64MSB
:
2390 case R_IA64_DTPREL64LSB
:
2391 if (info
->shared
|| maybe_dynamic
)
2392 need_entry
= NEED_DYNREL
;
2393 dynrel_type
= R_IA64_DTPRELNNLSB
;
2396 case R_IA64_LTOFF_DTPREL22
:
2397 need_entry
= NEED_DTPREL
;
2400 case R_IA64_DTPMOD64MSB
:
2401 case R_IA64_DTPMOD64LSB
:
2402 if (info
->shared
|| maybe_dynamic
)
2403 need_entry
= NEED_DYNREL
;
2404 dynrel_type
= R_IA64_DTPMOD64LSB
;
2407 case R_IA64_LTOFF_DTPMOD22
:
2408 need_entry
= NEED_DTPMOD
;
2411 case R_IA64_LTOFF_FPTR22
:
2412 case R_IA64_LTOFF_FPTR64I
:
2413 case R_IA64_LTOFF_FPTR32MSB
:
2414 case R_IA64_LTOFF_FPTR32LSB
:
2415 case R_IA64_LTOFF_FPTR64MSB
:
2416 case R_IA64_LTOFF_FPTR64LSB
:
2417 need_entry
= NEED_FPTR
| NEED_GOT
| NEED_LTOFF_FPTR
;
2420 case R_IA64_FPTR64I
:
2421 case R_IA64_FPTR32MSB
:
2422 case R_IA64_FPTR32LSB
:
2423 case R_IA64_FPTR64MSB
:
2424 case R_IA64_FPTR64LSB
:
2425 if (info
->shared
|| h
)
2426 need_entry
= NEED_FPTR
| NEED_DYNREL
;
2428 need_entry
= NEED_FPTR
;
2429 dynrel_type
= R_IA64_FPTRNNLSB
;
2432 case R_IA64_LTOFF22
:
2433 case R_IA64_LTOFF64I
:
2434 need_entry
= NEED_GOT
;
2437 case R_IA64_LTOFF22X
:
2438 need_entry
= NEED_GOTX
;
2441 case R_IA64_PLTOFF22
:
2442 case R_IA64_PLTOFF64I
:
2443 case R_IA64_PLTOFF64MSB
:
2444 case R_IA64_PLTOFF64LSB
:
2445 need_entry
= NEED_PLTOFF
;
2449 need_entry
|= NEED_MIN_PLT
;
2453 case R_IA64_PCREL21B
:
2454 case R_IA64_PCREL60B
:
2455 /* Depending on where this symbol is defined, we may or may not
2456 need a full plt entry. Only skip if we know we'll not need
2457 the entry -- static or symbolic, and the symbol definition
2458 has already been seen. */
2459 if (maybe_dynamic
&& rel
->r_addend
== 0)
2460 need_entry
= NEED_FULL_PLT
;
2466 case R_IA64_DIR32MSB
:
2467 case R_IA64_DIR32LSB
:
2468 case R_IA64_DIR64MSB
:
2469 case R_IA64_DIR64LSB
:
2470 /* Shared objects will always need at least a REL relocation. */
2471 if (info
->shared
|| maybe_dynamic
)
2472 need_entry
= NEED_DYNREL
;
2473 dynrel_type
= R_IA64_DIRNNLSB
;
2476 case R_IA64_IPLTMSB
:
2477 case R_IA64_IPLTLSB
:
2478 /* Shared objects will always need at least a REL relocation. */
2479 if (info
->shared
|| maybe_dynamic
)
2480 need_entry
= NEED_DYNREL
;
2481 dynrel_type
= R_IA64_IPLTLSB
;
2484 case R_IA64_PCREL22
:
2485 case R_IA64_PCREL64I
:
2486 case R_IA64_PCREL32MSB
:
2487 case R_IA64_PCREL32LSB
:
2488 case R_IA64_PCREL64MSB
:
2489 case R_IA64_PCREL64LSB
:
2491 need_entry
= NEED_DYNREL
;
2492 dynrel_type
= R_IA64_PCRELNNLSB
;
2499 dyn_i
= get_dyn_sym_info (ia64_info
, h
, abfd
, rel
, FALSE
);
2501 /* Record whether or not this is a local symbol. */
2504 /* Create what's needed. */
2505 if (need_entry
& (NEED_GOT
| NEED_GOTX
| NEED_TPREL
2506 | NEED_DTPMOD
| NEED_DTPREL
))
2510 got
= get_got (abfd
, info
, ia64_info
);
2514 if (need_entry
& NEED_GOT
)
2515 dyn_i
->want_got
= 1;
2516 if (need_entry
& NEED_GOTX
)
2517 dyn_i
->want_gotx
= 1;
2518 if (need_entry
& NEED_TPREL
)
2519 dyn_i
->want_tprel
= 1;
2520 if (need_entry
& NEED_DTPMOD
)
2521 dyn_i
->want_dtpmod
= 1;
2522 if (need_entry
& NEED_DTPREL
)
2523 dyn_i
->want_dtprel
= 1;
2525 if (need_entry
& NEED_FPTR
)
2529 fptr
= get_fptr (abfd
, info
, ia64_info
);
2534 /* FPTRs for shared libraries are allocated by the dynamic
2535 linker. Make sure this local symbol will appear in the
2536 dynamic symbol table. */
2537 if (!h
&& info
->shared
)
2539 if (! (bfd_elf_link_record_local_dynamic_symbol
2540 (info
, abfd
, (long) r_symndx
)))
2544 dyn_i
->want_fptr
= 1;
2546 if (need_entry
& NEED_LTOFF_FPTR
)
2547 dyn_i
->want_ltoff_fptr
= 1;
2548 if (need_entry
& (NEED_MIN_PLT
| NEED_FULL_PLT
))
2550 if (!ia64_info
->root
.dynobj
)
2551 ia64_info
->root
.dynobj
= abfd
;
2553 dyn_i
->want_plt
= 1;
2555 if (need_entry
& NEED_FULL_PLT
)
2556 dyn_i
->want_plt2
= 1;
2557 if (need_entry
& NEED_PLTOFF
)
2559 /* This is needed here, in case @pltoff is used in a non-shared
2563 pltoff
= get_pltoff (abfd
, info
, ia64_info
);
2568 dyn_i
->want_pltoff
= 1;
2570 if ((need_entry
& NEED_DYNREL
) && (sec
->flags
& SEC_ALLOC
))
2574 srel
= get_reloc_section (abfd
, ia64_info
, sec
, TRUE
);
2578 if (!count_dyn_reloc (abfd
, dyn_i
, srel
, dynrel_type
,
2579 (sec
->flags
& SEC_READONLY
) != 0))
2587 /* For cleanliness, and potentially faster dynamic loading, allocate
2588 external GOT entries first. */
2591 allocate_global_data_got (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2594 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2596 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2597 && ! dyn_i
->want_fptr
2598 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2600 dyn_i
->got_offset
= x
->ofs
;
2603 if (dyn_i
->want_tprel
)
2605 dyn_i
->tprel_offset
= x
->ofs
;
2608 if (dyn_i
->want_dtpmod
)
2610 if (elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2612 dyn_i
->dtpmod_offset
= x
->ofs
;
2617 struct elfNN_ia64_link_hash_table
*ia64_info
;
2619 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2620 if (ia64_info
== NULL
)
2623 if (ia64_info
->self_dtpmod_offset
== (bfd_vma
) -1)
2625 ia64_info
->self_dtpmod_offset
= x
->ofs
;
2628 dyn_i
->dtpmod_offset
= ia64_info
->self_dtpmod_offset
;
2631 if (dyn_i
->want_dtprel
)
2633 dyn_i
->dtprel_offset
= x
->ofs
;
2639 /* Next, allocate all the GOT entries used by LTOFF_FPTR relocs. */
2642 allocate_global_fptr_got (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2645 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2649 && elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, R_IA64_FPTRNNLSB
))
2651 dyn_i
->got_offset
= x
->ofs
;
2657 /* Lastly, allocate all the GOT entries for local data. */
2660 allocate_local_got (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2663 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2665 if ((dyn_i
->want_got
|| dyn_i
->want_gotx
)
2666 && !elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0))
2668 dyn_i
->got_offset
= x
->ofs
;
2674 /* Search for the index of a global symbol in it's defining object file. */
2677 global_sym_index (struct elf_link_hash_entry
*h
)
2679 struct elf_link_hash_entry
**p
;
2682 BFD_ASSERT (h
->root
.type
== bfd_link_hash_defined
2683 || h
->root
.type
== bfd_link_hash_defweak
);
2685 obj
= h
->root
.u
.def
.section
->owner
;
2686 for (p
= elf_sym_hashes (obj
); *p
!= h
; ++p
)
2689 return p
- elf_sym_hashes (obj
) + elf_tdata (obj
)->symtab_hdr
.sh_info
;
2692 /* Allocate function descriptors. We can do these for every function
2693 in a main executable that is not exported. */
2696 allocate_fptr (struct elfNN_ia64_dyn_sym_info
*dyn_i
, PTR data
)
2698 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2700 if (dyn_i
->want_fptr
)
2702 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2705 while (h
->root
.type
== bfd_link_hash_indirect
2706 || h
->root
.type
== bfd_link_hash_warning
)
2707 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2709 if (!x
->info
->executable
2711 || ELF_ST_VISIBILITY (h
->other
) == STV_DEFAULT
2712 || (h
->root
.type
!= bfd_link_hash_undefweak
2713 && h
->root
.type
!= bfd_link_hash_undefined
)))
2715 if (h
&& h
->dynindx
== -1)
2717 BFD_ASSERT ((h
->root
.type
== bfd_link_hash_defined
)
2718 || (h
->root
.type
== bfd_link_hash_defweak
));
2720 if (!bfd_elf_link_record_local_dynamic_symbol
2721 (x
->info
, h
->root
.u
.def
.section
->owner
,
2722 global_sym_index (h
)))
2726 dyn_i
->want_fptr
= 0;
2728 else if (h
== NULL
|| h
->dynindx
== -1)
2730 dyn_i
->fptr_offset
= x
->ofs
;
2734 dyn_i
->want_fptr
= 0;
2739 /* Allocate all the minimal PLT entries. */
2742 allocate_plt_entries (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2745 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2747 if (dyn_i
->want_plt
)
2749 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2752 while (h
->root
.type
== bfd_link_hash_indirect
2753 || h
->root
.type
== bfd_link_hash_warning
)
2754 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2756 /* ??? Versioned symbols seem to lose NEEDS_PLT. */
2757 if (elfNN_ia64_dynamic_symbol_p (h
, x
->info
, 0))
2759 bfd_size_type offset
= x
->ofs
;
2761 offset
= PLT_HEADER_SIZE
;
2762 dyn_i
->plt_offset
= offset
;
2763 x
->ofs
= offset
+ PLT_MIN_ENTRY_SIZE
;
2765 dyn_i
->want_pltoff
= 1;
2769 dyn_i
->want_plt
= 0;
2770 dyn_i
->want_plt2
= 0;
2776 /* Allocate all the full PLT entries. */
2779 allocate_plt2_entries (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2782 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2784 if (dyn_i
->want_plt2
)
2786 struct elf_link_hash_entry
*h
= dyn_i
->h
;
2787 bfd_size_type ofs
= x
->ofs
;
2789 dyn_i
->plt2_offset
= ofs
;
2790 x
->ofs
= ofs
+ PLT_FULL_ENTRY_SIZE
;
2792 while (h
->root
.type
== bfd_link_hash_indirect
2793 || h
->root
.type
== bfd_link_hash_warning
)
2794 h
= (struct elf_link_hash_entry
*) h
->root
.u
.i
.link
;
2795 dyn_i
->h
->plt
.offset
= ofs
;
2800 /* Allocate all the PLTOFF entries requested by relocations and
2801 plt entries. We can't share space with allocated FPTR entries,
2802 because the latter are not necessarily addressable by the GP.
2803 ??? Relaxation might be able to determine that they are. */
2806 allocate_pltoff_entries (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2809 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2811 if (dyn_i
->want_pltoff
)
2813 dyn_i
->pltoff_offset
= x
->ofs
;
2819 /* Allocate dynamic relocations for those symbols that turned out
2823 allocate_dynrel_entries (struct elfNN_ia64_dyn_sym_info
*dyn_i
,
2826 struct elfNN_ia64_allocate_data
*x
= (struct elfNN_ia64_allocate_data
*)data
;
2827 struct elfNN_ia64_link_hash_table
*ia64_info
;
2828 struct elfNN_ia64_dyn_reloc_entry
*rent
;
2829 bfd_boolean dynamic_symbol
, shared
, resolved_zero
;
2831 ia64_info
= elfNN_ia64_hash_table (x
->info
);
2832 if (ia64_info
== NULL
)
2835 /* Note that this can't be used in relation to FPTR relocs below. */
2836 dynamic_symbol
= elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, x
->info
, 0);
2838 shared
= x
->info
->shared
;
2839 resolved_zero
= (dyn_i
->h
2840 && ELF_ST_VISIBILITY (dyn_i
->h
->other
)
2841 && dyn_i
->h
->root
.type
== bfd_link_hash_undefweak
);
2843 /* Take care of the GOT and PLT relocations. */
2846 && (dynamic_symbol
|| shared
)
2847 && (dyn_i
->want_got
|| dyn_i
->want_gotx
))
2848 || (dyn_i
->want_ltoff_fptr
2850 && dyn_i
->h
->dynindx
!= -1))
2852 if (!dyn_i
->want_ltoff_fptr
2855 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2856 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
2858 if ((dynamic_symbol
|| shared
) && dyn_i
->want_tprel
)
2859 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
2860 if (dynamic_symbol
&& dyn_i
->want_dtpmod
)
2861 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
2862 if (dynamic_symbol
&& dyn_i
->want_dtprel
)
2863 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
2868 if (ia64_info
->rel_fptr_sec
&& dyn_i
->want_fptr
)
2870 if (dyn_i
->h
== NULL
|| dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
2871 ia64_info
->rel_fptr_sec
->size
+= sizeof (ElfNN_External_Rela
);
2874 if (!resolved_zero
&& dyn_i
->want_pltoff
)
2876 bfd_size_type t
= 0;
2878 /* Dynamic symbols get one IPLT relocation. Local symbols in
2879 shared libraries get two REL relocations. Local symbols in
2880 main applications get nothing. */
2882 t
= sizeof (ElfNN_External_Rela
);
2884 t
= 2 * sizeof (ElfNN_External_Rela
);
2886 ia64_info
->rel_pltoff_sec
->size
+= t
;
2889 /* Take care of the normal data relocations. */
2891 for (rent
= dyn_i
->reloc_entries
; rent
; rent
= rent
->next
)
2893 int count
= rent
->count
;
2897 case R_IA64_FPTR32LSB
:
2898 case R_IA64_FPTR64LSB
:
2899 /* Allocate one iff !want_fptr and not PIE, which by this point
2900 will be true only if we're actually allocating one statically
2901 in the main executable. Position independent executables
2902 need a relative reloc. */
2903 if (dyn_i
->want_fptr
&& !x
->info
->pie
)
2906 case R_IA64_PCREL32LSB
:
2907 case R_IA64_PCREL64LSB
:
2908 if (!dynamic_symbol
)
2911 case R_IA64_DIR32LSB
:
2912 case R_IA64_DIR64LSB
:
2913 if (!dynamic_symbol
&& !shared
)
2916 case R_IA64_IPLTLSB
:
2917 if (!dynamic_symbol
&& !shared
)
2919 /* Use two REL relocations for IPLT relocations
2920 against local symbols. */
2921 if (!dynamic_symbol
)
2924 case R_IA64_DTPREL32LSB
:
2925 case R_IA64_TPREL64LSB
:
2926 case R_IA64_DTPREL64LSB
:
2927 case R_IA64_DTPMOD64LSB
:
2933 ia64_info
->reltext
= 1;
2934 rent
->srel
->size
+= sizeof (ElfNN_External_Rela
) * count
;
2941 elfNN_ia64_adjust_dynamic_symbol (struct bfd_link_info
*info ATTRIBUTE_UNUSED
,
2942 struct elf_link_hash_entry
*h
)
2944 /* ??? Undefined symbols with PLT entries should be re-defined
2945 to be the PLT entry. */
2947 /* If this is a weak symbol, and there is a real definition, the
2948 processor independent code will have arranged for us to see the
2949 real definition first, and we can just use the same value. */
2950 if (h
->u
.weakdef
!= NULL
)
2952 BFD_ASSERT (h
->u
.weakdef
->root
.type
== bfd_link_hash_defined
2953 || h
->u
.weakdef
->root
.type
== bfd_link_hash_defweak
);
2954 h
->root
.u
.def
.section
= h
->u
.weakdef
->root
.u
.def
.section
;
2955 h
->root
.u
.def
.value
= h
->u
.weakdef
->root
.u
.def
.value
;
2959 /* If this is a reference to a symbol defined by a dynamic object which
2960 is not a function, we might allocate the symbol in our .dynbss section
2961 and allocate a COPY dynamic relocation.
2963 But IA-64 code is canonically PIC, so as a rule we can avoid this sort
2970 elfNN_ia64_size_dynamic_sections (bfd
*output_bfd ATTRIBUTE_UNUSED
,
2971 struct bfd_link_info
*info
)
2973 struct elfNN_ia64_allocate_data data
;
2974 struct elfNN_ia64_link_hash_table
*ia64_info
;
2977 bfd_boolean relplt
= FALSE
;
2979 dynobj
= elf_hash_table(info
)->dynobj
;
2980 ia64_info
= elfNN_ia64_hash_table (info
);
2981 if (ia64_info
== NULL
)
2983 ia64_info
->self_dtpmod_offset
= (bfd_vma
) -1;
2984 BFD_ASSERT(dynobj
!= NULL
);
2987 /* Set the contents of the .interp section to the interpreter. */
2988 if (ia64_info
->root
.dynamic_sections_created
2989 && info
->executable
)
2991 sec
= bfd_get_section_by_name (dynobj
, ".interp");
2992 BFD_ASSERT (sec
!= NULL
);
2993 sec
->contents
= (bfd_byte
*) ELF_DYNAMIC_INTERPRETER
;
2994 sec
->size
= strlen (ELF_DYNAMIC_INTERPRETER
) + 1;
2997 /* Allocate the GOT entries. */
2999 if (ia64_info
->root
.sgot
)
3002 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_data_got
, &data
);
3003 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_global_fptr_got
, &data
);
3004 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_local_got
, &data
);
3005 ia64_info
->root
.sgot
->size
= data
.ofs
;
3008 /* Allocate the FPTR entries. */
3010 if (ia64_info
->fptr_sec
)
3013 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_fptr
, &data
);
3014 ia64_info
->fptr_sec
->size
= data
.ofs
;
3017 /* Now that we've seen all of the input files, we can decide which
3018 symbols need plt entries. Allocate the minimal PLT entries first.
3019 We do this even though dynamic_sections_created may be FALSE, because
3020 this has the side-effect of clearing want_plt and want_plt2. */
3023 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt_entries
, &data
);
3025 ia64_info
->minplt_entries
= 0;
3028 ia64_info
->minplt_entries
3029 = (data
.ofs
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
3032 /* Align the pointer for the plt2 entries. */
3033 data
.ofs
= (data
.ofs
+ 31) & (bfd_vma
) -32;
3035 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_plt2_entries
, &data
);
3036 if (data
.ofs
!= 0 || ia64_info
->root
.dynamic_sections_created
)
3038 /* FIXME: we always reserve the memory for dynamic linker even if
3039 there are no PLT entries since dynamic linker may assume the
3040 reserved memory always exists. */
3042 BFD_ASSERT (ia64_info
->root
.dynamic_sections_created
);
3044 ia64_info
->root
.splt
->size
= data
.ofs
;
3046 /* If we've got a .plt, we need some extra memory for the dynamic
3047 linker. We stuff these in .got.plt. */
3048 sec
= bfd_get_section_by_name (dynobj
, ".got.plt");
3049 sec
->size
= 8 * PLT_RESERVED_WORDS
;
3052 /* Allocate the PLTOFF entries. */
3054 if (ia64_info
->pltoff_sec
)
3057 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_pltoff_entries
, &data
);
3058 ia64_info
->pltoff_sec
->size
= data
.ofs
;
3061 if (ia64_info
->root
.dynamic_sections_created
)
3063 /* Allocate space for the dynamic relocations that turned out to be
3066 if (info
->shared
&& ia64_info
->self_dtpmod_offset
!= (bfd_vma
) -1)
3067 ia64_info
->root
.srelgot
->size
+= sizeof (ElfNN_External_Rela
);
3068 data
.only_got
= FALSE
;
3069 elfNN_ia64_dyn_sym_traverse (ia64_info
, allocate_dynrel_entries
, &data
);
3072 /* We have now determined the sizes of the various dynamic sections.
3073 Allocate memory for them. */
3074 for (sec
= dynobj
->sections
; sec
!= NULL
; sec
= sec
->next
)
3078 if (!(sec
->flags
& SEC_LINKER_CREATED
))
3081 /* If we don't need this section, strip it from the output file.
3082 There were several sections primarily related to dynamic
3083 linking that must be create before the linker maps input
3084 sections to output sections. The linker does that before
3085 bfd_elf_size_dynamic_sections is called, and it is that
3086 function which decides whether anything needs to go into
3089 strip
= (sec
->size
== 0);
3091 if (sec
== ia64_info
->root
.sgot
)
3093 else if (sec
== ia64_info
->root
.srelgot
)
3096 ia64_info
->root
.srelgot
= NULL
;
3098 /* We use the reloc_count field as a counter if we need to
3099 copy relocs into the output file. */
3100 sec
->reloc_count
= 0;
3102 else if (sec
== ia64_info
->fptr_sec
)
3105 ia64_info
->fptr_sec
= NULL
;
3107 else if (sec
== ia64_info
->rel_fptr_sec
)
3110 ia64_info
->rel_fptr_sec
= NULL
;
3112 /* We use the reloc_count field as a counter if we need to
3113 copy relocs into the output file. */
3114 sec
->reloc_count
= 0;
3116 else if (sec
== ia64_info
->root
.splt
)
3119 ia64_info
->root
.splt
= NULL
;
3121 else if (sec
== ia64_info
->pltoff_sec
)
3124 ia64_info
->pltoff_sec
= NULL
;
3126 else if (sec
== ia64_info
->rel_pltoff_sec
)
3129 ia64_info
->rel_pltoff_sec
= NULL
;
3133 /* We use the reloc_count field as a counter if we need to
3134 copy relocs into the output file. */
3135 sec
->reloc_count
= 0;
3142 /* It's OK to base decisions on the section name, because none
3143 of the dynobj section names depend upon the input files. */
3144 name
= bfd_get_section_name (dynobj
, sec
);
3146 if (strcmp (name
, ".got.plt") == 0)
3148 else if (CONST_STRNEQ (name
, ".rel"))
3152 /* We use the reloc_count field as a counter if we need to
3153 copy relocs into the output file. */
3154 sec
->reloc_count
= 0;
3162 sec
->flags
|= SEC_EXCLUDE
;
3165 /* Allocate memory for the section contents. */
3166 sec
->contents
= (bfd_byte
*) bfd_zalloc (dynobj
, sec
->size
);
3167 if (sec
->contents
== NULL
&& sec
->size
!= 0)
3172 if (elf_hash_table (info
)->dynamic_sections_created
)
3174 /* Add some entries to the .dynamic section. We fill in the values
3175 later (in finish_dynamic_sections) but we must add the entries now
3176 so that we get the correct size for the .dynamic section. */
3178 if (info
->executable
)
3180 /* The DT_DEBUG entry is filled in by the dynamic linker and used
3182 #define add_dynamic_entry(TAG, VAL) \
3183 _bfd_elf_add_dynamic_entry (info, TAG, VAL)
3185 if (!add_dynamic_entry (DT_DEBUG
, 0))
3189 if (!add_dynamic_entry (DT_IA_64_PLT_RESERVE
, 0))
3191 if (!add_dynamic_entry (DT_PLTGOT
, 0))
3196 if (!add_dynamic_entry (DT_PLTRELSZ
, 0)
3197 || !add_dynamic_entry (DT_PLTREL
, DT_RELA
)
3198 || !add_dynamic_entry (DT_JMPREL
, 0))
3202 if (!add_dynamic_entry (DT_RELA
, 0)
3203 || !add_dynamic_entry (DT_RELASZ
, 0)
3204 || !add_dynamic_entry (DT_RELAENT
, sizeof (ElfNN_External_Rela
)))
3207 if (ia64_info
->reltext
)
3209 if (!add_dynamic_entry (DT_TEXTREL
, 0))
3211 info
->flags
|= DF_TEXTREL
;
3215 /* ??? Perhaps force __gp local. */
3221 elfNN_ia64_install_dyn_reloc (bfd
*abfd
, struct bfd_link_info
*info
,
3222 asection
*sec
, asection
*srel
,
3223 bfd_vma offset
, unsigned int type
,
3224 long dynindx
, bfd_vma addend
)
3226 Elf_Internal_Rela outrel
;
3229 BFD_ASSERT (dynindx
!= -1);
3230 outrel
.r_info
= ELFNN_R_INFO (dynindx
, type
);
3231 outrel
.r_addend
= addend
;
3232 outrel
.r_offset
= _bfd_elf_section_offset (abfd
, info
, sec
, offset
);
3233 if (outrel
.r_offset
>= (bfd_vma
) -2)
3235 /* Run for the hills. We shouldn't be outputting a relocation
3236 for this. So do what everyone else does and output a no-op. */
3237 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_NONE
);
3238 outrel
.r_addend
= 0;
3239 outrel
.r_offset
= 0;
3242 outrel
.r_offset
+= sec
->output_section
->vma
+ sec
->output_offset
;
3244 loc
= srel
->contents
;
3245 loc
+= srel
->reloc_count
++ * sizeof (ElfNN_External_Rela
);
3246 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3247 BFD_ASSERT (sizeof (ElfNN_External_Rela
) * srel
->reloc_count
<= srel
->size
);
3250 /* Store an entry for target address TARGET_ADDR in the linkage table
3251 and return the gp-relative address of the linkage table entry. */
3254 set_got_entry (bfd
*abfd
, struct bfd_link_info
*info
,
3255 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
3256 long dynindx
, bfd_vma addend
, bfd_vma value
,
3257 unsigned int dyn_r_type
)
3259 struct elfNN_ia64_link_hash_table
*ia64_info
;
3264 ia64_info
= elfNN_ia64_hash_table (info
);
3265 if (ia64_info
== NULL
)
3268 got_sec
= ia64_info
->root
.sgot
;
3272 case R_IA64_TPREL64LSB
:
3273 done
= dyn_i
->tprel_done
;
3274 dyn_i
->tprel_done
= TRUE
;
3275 got_offset
= dyn_i
->tprel_offset
;
3277 case R_IA64_DTPMOD64LSB
:
3278 if (dyn_i
->dtpmod_offset
!= ia64_info
->self_dtpmod_offset
)
3280 done
= dyn_i
->dtpmod_done
;
3281 dyn_i
->dtpmod_done
= TRUE
;
3285 done
= ia64_info
->self_dtpmod_done
;
3286 ia64_info
->self_dtpmod_done
= TRUE
;
3289 got_offset
= dyn_i
->dtpmod_offset
;
3291 case R_IA64_DTPREL32LSB
:
3292 case R_IA64_DTPREL64LSB
:
3293 done
= dyn_i
->dtprel_done
;
3294 dyn_i
->dtprel_done
= TRUE
;
3295 got_offset
= dyn_i
->dtprel_offset
;
3298 done
= dyn_i
->got_done
;
3299 dyn_i
->got_done
= TRUE
;
3300 got_offset
= dyn_i
->got_offset
;
3304 BFD_ASSERT ((got_offset
& 7) == 0);
3308 /* Store the target address in the linkage table entry. */
3309 bfd_put_64 (abfd
, value
, got_sec
->contents
+ got_offset
);
3311 /* Install a dynamic relocation if needed. */
3314 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3315 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
)
3316 && dyn_r_type
!= R_IA64_DTPREL32LSB
3317 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3318 || elfNN_ia64_dynamic_symbol_p (dyn_i
->h
, info
, dyn_r_type
)
3320 && (dyn_r_type
== R_IA64_FPTR32LSB
3321 || dyn_r_type
== R_IA64_FPTR64LSB
)))
3322 && (!dyn_i
->want_ltoff_fptr
3325 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3328 && dyn_r_type
!= R_IA64_TPREL64LSB
3329 && dyn_r_type
!= R_IA64_DTPMOD64LSB
3330 && dyn_r_type
!= R_IA64_DTPREL32LSB
3331 && dyn_r_type
!= R_IA64_DTPREL64LSB
)
3333 dyn_r_type
= R_IA64_RELNNLSB
;
3338 if (bfd_big_endian (abfd
))
3342 case R_IA64_REL32LSB
:
3343 dyn_r_type
= R_IA64_REL32MSB
;
3345 case R_IA64_DIR32LSB
:
3346 dyn_r_type
= R_IA64_DIR32MSB
;
3348 case R_IA64_FPTR32LSB
:
3349 dyn_r_type
= R_IA64_FPTR32MSB
;
3351 case R_IA64_DTPREL32LSB
:
3352 dyn_r_type
= R_IA64_DTPREL32MSB
;
3354 case R_IA64_REL64LSB
:
3355 dyn_r_type
= R_IA64_REL64MSB
;
3357 case R_IA64_DIR64LSB
:
3358 dyn_r_type
= R_IA64_DIR64MSB
;
3360 case R_IA64_FPTR64LSB
:
3361 dyn_r_type
= R_IA64_FPTR64MSB
;
3363 case R_IA64_TPREL64LSB
:
3364 dyn_r_type
= R_IA64_TPREL64MSB
;
3366 case R_IA64_DTPMOD64LSB
:
3367 dyn_r_type
= R_IA64_DTPMOD64MSB
;
3369 case R_IA64_DTPREL64LSB
:
3370 dyn_r_type
= R_IA64_DTPREL64MSB
;
3378 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, got_sec
,
3379 ia64_info
->root
.srelgot
,
3380 got_offset
, dyn_r_type
,
3385 /* Return the address of the linkage table entry. */
3386 value
= (got_sec
->output_section
->vma
3387 + got_sec
->output_offset
3393 /* Fill in a function descriptor consisting of the function's code
3394 address and its global pointer. Return the descriptor's address. */
3397 set_fptr_entry (bfd
*abfd
, struct bfd_link_info
*info
,
3398 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
3401 struct elfNN_ia64_link_hash_table
*ia64_info
;
3404 ia64_info
= elfNN_ia64_hash_table (info
);
3405 if (ia64_info
== NULL
)
3408 fptr_sec
= ia64_info
->fptr_sec
;
3410 if (!dyn_i
->fptr_done
)
3412 dyn_i
->fptr_done
= 1;
3414 /* Fill in the function descriptor. */
3415 bfd_put_64 (abfd
, value
, fptr_sec
->contents
+ dyn_i
->fptr_offset
);
3416 bfd_put_64 (abfd
, _bfd_get_gp_value (abfd
),
3417 fptr_sec
->contents
+ dyn_i
->fptr_offset
+ 8);
3418 if (ia64_info
->rel_fptr_sec
)
3420 Elf_Internal_Rela outrel
;
3423 if (bfd_little_endian (abfd
))
3424 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTLSB
);
3426 outrel
.r_info
= ELFNN_R_INFO (0, R_IA64_IPLTMSB
);
3427 outrel
.r_addend
= value
;
3428 outrel
.r_offset
= (fptr_sec
->output_section
->vma
3429 + fptr_sec
->output_offset
3430 + dyn_i
->fptr_offset
);
3431 loc
= ia64_info
->rel_fptr_sec
->contents
;
3432 loc
+= ia64_info
->rel_fptr_sec
->reloc_count
++
3433 * sizeof (ElfNN_External_Rela
);
3434 bfd_elfNN_swap_reloca_out (abfd
, &outrel
, loc
);
3438 /* Return the descriptor's address. */
3439 value
= (fptr_sec
->output_section
->vma
3440 + fptr_sec
->output_offset
3441 + dyn_i
->fptr_offset
);
3446 /* Fill in a PLTOFF entry consisting of the function's code address
3447 and its global pointer. Return the descriptor's address. */
3450 set_pltoff_entry (bfd
*abfd
, struct bfd_link_info
*info
,
3451 struct elfNN_ia64_dyn_sym_info
*dyn_i
,
3452 bfd_vma value
, bfd_boolean is_plt
)
3454 struct elfNN_ia64_link_hash_table
*ia64_info
;
3455 asection
*pltoff_sec
;
3457 ia64_info
= elfNN_ia64_hash_table (info
);
3458 if (ia64_info
== NULL
)
3461 pltoff_sec
= ia64_info
->pltoff_sec
;
3463 /* Don't do anything if this symbol uses a real PLT entry. In
3464 that case, we'll fill this in during finish_dynamic_symbol. */
3465 if ((! dyn_i
->want_plt
|| is_plt
)
3466 && !dyn_i
->pltoff_done
)
3468 bfd_vma gp
= _bfd_get_gp_value (abfd
);
3470 /* Fill in the function descriptor. */
3471 bfd_put_64 (abfd
, value
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
);
3472 bfd_put_64 (abfd
, gp
, pltoff_sec
->contents
+ dyn_i
->pltoff_offset
+ 8);
3474 /* Install dynamic relocations if needed. */
3478 || ELF_ST_VISIBILITY (dyn_i
->h
->other
) == STV_DEFAULT
3479 || dyn_i
->h
->root
.type
!= bfd_link_hash_undefweak
))
3481 unsigned int dyn_r_type
;
3483 if (bfd_big_endian (abfd
))
3484 dyn_r_type
= R_IA64_RELNNMSB
;
3486 dyn_r_type
= R_IA64_RELNNLSB
;
3488 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3489 ia64_info
->rel_pltoff_sec
,
3490 dyn_i
->pltoff_offset
,
3491 dyn_r_type
, 0, value
);
3492 elfNN_ia64_install_dyn_reloc (abfd
, NULL
, pltoff_sec
,
3493 ia64_info
->rel_pltoff_sec
,
3494 dyn_i
->pltoff_offset
+ ARCH_SIZE
/ 8,
3498 dyn_i
->pltoff_done
= 1;
3501 /* Return the descriptor's address. */
3502 value
= (pltoff_sec
->output_section
->vma
3503 + pltoff_sec
->output_offset
3504 + dyn_i
->pltoff_offset
);
3509 /* Return the base VMA address which should be subtracted from real addresses
3510 when resolving @tprel() relocation.
3511 Main program TLS (whose template starts at PT_TLS p_vaddr)
3512 is assigned offset round(2 * size of pointer, PT_TLS p_align). */
3515 elfNN_ia64_tprel_base (struct bfd_link_info
*info
)
3517 asection
*tls_sec
= elf_hash_table (info
)->tls_sec
;
3518 return tls_sec
->vma
- align_power ((bfd_vma
) ARCH_SIZE
/ 4,
3519 tls_sec
->alignment_power
);
3522 /* Return the base VMA address which should be subtracted from real addresses
3523 when resolving @dtprel() relocation.
3524 This is PT_TLS segment p_vaddr. */
3527 elfNN_ia64_dtprel_base (struct bfd_link_info
*info
)
3529 return elf_hash_table (info
)->tls_sec
->vma
;
3532 /* Called through qsort to sort the .IA_64.unwind section during a
3533 non-relocatable link. Set elfNN_ia64_unwind_entry_compare_bfd
3534 to the output bfd so we can do proper endianness frobbing. */
3536 static bfd
*elfNN_ia64_unwind_entry_compare_bfd
;
3539 elfNN_ia64_unwind_entry_compare (const PTR a
, const PTR b
)
3543 av
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, a
);
3544 bv
= bfd_get_64 (elfNN_ia64_unwind_entry_compare_bfd
, b
);
3546 return (av
< bv
? -1 : av
> bv
? 1 : 0);
3549 /* Make sure we've got ourselves a nice fat __gp value. */
3551 elfNN_ia64_choose_gp (bfd
*abfd
, struct bfd_link_info
*info
, bfd_boolean final
)
3553 bfd_vma min_vma
= (bfd_vma
) -1, max_vma
= 0;
3554 bfd_vma min_short_vma
= min_vma
, max_short_vma
= 0;
3555 struct elf_link_hash_entry
*gp
;
3558 struct elfNN_ia64_link_hash_table
*ia64_info
;
3560 ia64_info
= elfNN_ia64_hash_table (info
);
3561 if (ia64_info
== NULL
)
3564 /* Find the min and max vma of all sections marked short. Also collect
3565 min and max vma of any type, for use in selecting a nice gp. */
3566 for (os
= abfd
->sections
; os
; os
= os
->next
)
3570 if ((os
->flags
& SEC_ALLOC
) == 0)
3574 /* When this function is called from elfNN_ia64_final_link
3575 the correct value to use is os->size. When called from
3576 elfNN_ia64_relax_section we are in the middle of section
3577 sizing; some sections will already have os->size set, others
3578 will have os->size zero and os->rawsize the previous size. */
3579 hi
= os
->vma
+ (!final
&& os
->rawsize
? os
->rawsize
: os
->size
);
3587 if (os
->flags
& SEC_SMALL_DATA
)
3589 if (min_short_vma
> lo
)
3591 if (max_short_vma
< hi
)
3596 if (ia64_info
->min_short_sec
)
3599 > (ia64_info
->min_short_sec
->vma
3600 + ia64_info
->min_short_offset
))
3601 min_short_vma
= (ia64_info
->min_short_sec
->vma
3602 + ia64_info
->min_short_offset
);
3604 < (ia64_info
->max_short_sec
->vma
3605 + ia64_info
->max_short_offset
))
3606 max_short_vma
= (ia64_info
->max_short_sec
->vma
3607 + ia64_info
->max_short_offset
);
3610 /* See if the user wants to force a value. */
3611 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3615 && (gp
->root
.type
== bfd_link_hash_defined
3616 || gp
->root
.type
== bfd_link_hash_defweak
))
3618 asection
*gp_sec
= gp
->root
.u
.def
.section
;
3619 gp_val
= (gp
->root
.u
.def
.value
3620 + gp_sec
->output_section
->vma
3621 + gp_sec
->output_offset
);
3625 /* Pick a sensible value. */
3627 if (ia64_info
->min_short_sec
)
3629 bfd_vma short_range
= max_short_vma
- min_short_vma
;
3631 /* If min_short_sec is set, pick one in the middle bewteen
3632 min_short_vma and max_short_vma. */
3633 if (short_range
>= 0x400000)
3635 gp_val
= min_short_vma
+ short_range
/ 2;
3639 asection
*got_sec
= ia64_info
->root
.sgot
;
3641 /* Start with just the address of the .got. */
3643 gp_val
= got_sec
->output_section
->vma
;
3644 else if (max_short_vma
!= 0)
3645 gp_val
= min_short_vma
;
3646 else if (max_vma
- min_vma
< 0x200000)
3649 gp_val
= max_vma
- 0x200000 + 8;
3652 /* If it is possible to address the entire image, but we
3653 don't with the choice above, adjust. */
3654 if (max_vma
- min_vma
< 0x400000
3655 && (max_vma
- gp_val
>= 0x200000
3656 || gp_val
- min_vma
> 0x200000))
3657 gp_val
= min_vma
+ 0x200000;
3658 else if (max_short_vma
!= 0)
3660 /* If we don't cover all the short data, adjust. */
3661 if (max_short_vma
- gp_val
>= 0x200000)
3662 gp_val
= min_short_vma
+ 0x200000;
3664 /* If we're addressing stuff past the end, adjust back. */
3665 if (gp_val
> max_vma
)
3666 gp_val
= max_vma
- 0x200000 + 8;
3670 /* Validate whether all SHF_IA_64_SHORT sections are within
3671 range of the chosen GP. */
3673 if (max_short_vma
!= 0)
3675 if (max_short_vma
- min_short_vma
>= 0x400000)
3678 (*_bfd_error_handler
)
3679 (_("%s: short data segment overflowed (0x%lx >= 0x400000)"),
3680 bfd_get_filename (abfd
),
3681 (unsigned long) (max_short_vma
- min_short_vma
));
3684 else if ((gp_val
> min_short_vma
3685 && gp_val
- min_short_vma
> 0x200000)
3686 || (gp_val
< max_short_vma
3687 && max_short_vma
- gp_val
>= 0x200000))
3689 (*_bfd_error_handler
)
3690 (_("%s: __gp does not cover short data segment"),
3691 bfd_get_filename (abfd
));
3696 _bfd_set_gp_value (abfd
, gp_val
);
3702 elfNN_ia64_final_link (bfd
*abfd
, struct bfd_link_info
*info
)
3704 struct elfNN_ia64_link_hash_table
*ia64_info
;
3705 asection
*unwind_output_sec
;
3707 ia64_info
= elfNN_ia64_hash_table (info
);
3708 if (ia64_info
== NULL
)
3711 /* Make sure we've got ourselves a nice fat __gp value. */
3712 if (!info
->relocatable
)
3715 struct elf_link_hash_entry
*gp
;
3717 /* We assume after gp is set, section size will only decrease. We
3718 need to adjust gp for it. */
3719 _bfd_set_gp_value (abfd
, 0);
3720 if (! elfNN_ia64_choose_gp (abfd
, info
, TRUE
))
3722 gp_val
= _bfd_get_gp_value (abfd
);
3724 gp
= elf_link_hash_lookup (elf_hash_table (info
), "__gp", FALSE
,
3728 gp
->root
.type
= bfd_link_hash_defined
;
3729 gp
->root
.u
.def
.value
= gp_val
;
3730 gp
->root
.u
.def
.section
= bfd_abs_section_ptr
;
3734 /* If we're producing a final executable, we need to sort the contents
3735 of the .IA_64.unwind section. Force this section to be relocated
3736 into memory rather than written immediately to the output file. */
3737 unwind_output_sec
= NULL
;
3738 if (!info
->relocatable
)
3740 asection
*s
= bfd_get_section_by_name (abfd
, ELF_STRING_ia64_unwind
);
3743 unwind_output_sec
= s
->output_section
;
3744 unwind_output_sec
->contents
3745 = bfd_malloc (unwind_output_sec
->size
);
3746 if (unwind_output_sec
->contents
== NULL
)
3751 /* Invoke the regular ELF backend linker to do all the work. */
3752 if (!bfd_elf_final_link (abfd
, info
))
3755 if (unwind_output_sec
)
3757 elfNN_ia64_unwind_entry_compare_bfd
= abfd
;
3758 qsort (unwind_output_sec
->contents
,
3759 (size_t) (unwind_output_sec
->size
/ 24),
3761 elfNN_ia64_unwind_entry_compare
);
3763 if (! bfd_set_section_contents (abfd
, unwind_output_sec
,
3764 unwind_output_sec
->contents
, (bfd_vma
) 0,
3765 unwind_output_sec
->size
))
3773 elfNN_ia64_relocate_section (bfd
*output_bfd
,
3774 struct bfd_link_info
*info
,
3776 asection
*input_section
,
3778 Elf_Internal_Rela
*relocs
,
3779 Elf_Internal_Sym
*local_syms
,
3780 asection
**local_sections
)
3782 struct elfNN_ia64_link_hash_table
*ia64_info
;
3783 Elf_Internal_Shdr
*symtab_hdr
;
3784 Elf_Internal_Rela
*rel
;
3785 Elf_Internal_Rela
*relend
;
3787 bfd_boolean ret_val
= TRUE
; /* for non-fatal errors */
3790 symtab_hdr
= &elf_tdata (input_bfd
)->symtab_hdr
;
3791 ia64_info
= elfNN_ia64_hash_table (info
);
3792 if (ia64_info
== NULL
)
3795 /* Infect various flags from the input section to the output section. */
3796 if (info
->relocatable
)
3800 flags
= elf_section_data(input_section
)->this_hdr
.sh_flags
;
3801 flags
&= SHF_IA_64_NORECOV
;
3803 elf_section_data(input_section
->output_section
)
3804 ->this_hdr
.sh_flags
|= flags
;
3807 gp_val
= _bfd_get_gp_value (output_bfd
);
3808 srel
= get_reloc_section (input_bfd
, ia64_info
, input_section
, FALSE
);
3811 relend
= relocs
+ input_section
->reloc_count
;
3812 for (; rel
< relend
; ++rel
)
3814 struct elf_link_hash_entry
*h
;
3815 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
3816 bfd_reloc_status_type r
;
3817 reloc_howto_type
*howto
;
3818 unsigned long r_symndx
;
3819 Elf_Internal_Sym
*sym
;
3820 unsigned int r_type
;
3824 bfd_boolean dynamic_symbol_p
;
3825 bfd_boolean undef_weak_ref
;
3827 r_type
= ELFNN_R_TYPE (rel
->r_info
);
3828 if (r_type
> R_IA64_MAX_RELOC_CODE
)
3830 (*_bfd_error_handler
)
3831 (_("%B: unknown relocation type %d"),
3832 input_bfd
, (int) r_type
);
3833 bfd_set_error (bfd_error_bad_value
);
3838 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 (!info
->relocatable
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
;
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
);
3908 if (h
->root
.type
== bfd_link_hash_undefweak
)
3909 undef_weak_ref
= TRUE
;
3914 if (sym_sec
!= NULL
&& discarded_section (sym_sec
))
3915 RELOC_AGAINST_DISCARDED_SECTION (info
, input_bfd
, input_section
,
3916 rel
, relend
, howto
, contents
);
3918 if (info
->relocatable
)
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
|| info
->shared
)
3940 && r_symndx
!= STN_UNDEF
3941 && (input_section
->flags
& SEC_ALLOC
) != 0)
3943 unsigned int dyn_r_type
;
3947 BFD_ASSERT (srel
!= NULL
);
3954 /* ??? People shouldn't be doing non-pic code in
3955 shared libraries nor dynamic executables. */
3956 (*_bfd_error_handler
)
3957 (_("%B: non-pic code with imm relocation against dynamic symbol `%s'"),
3959 h
? h
->root
.root
.string
3960 : bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
3969 /* If we don't need dynamic symbol lookup, find a
3970 matching RELATIVE relocation. */
3971 dyn_r_type
= r_type
;
3972 if (dynamic_symbol_p
)
3974 dynindx
= h
->dynindx
;
3975 addend
= rel
->r_addend
;
3982 case R_IA64_DIR32MSB
:
3983 dyn_r_type
= R_IA64_REL32MSB
;
3985 case R_IA64_DIR32LSB
:
3986 dyn_r_type
= R_IA64_REL32LSB
;
3988 case R_IA64_DIR64MSB
:
3989 dyn_r_type
= R_IA64_REL64MSB
;
3991 case R_IA64_DIR64LSB
:
3992 dyn_r_type
= R_IA64_REL64LSB
;
4002 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4003 srel
, rel
->r_offset
, dyn_r_type
,
4008 case R_IA64_LTV32MSB
:
4009 case R_IA64_LTV32LSB
:
4010 case R_IA64_LTV64MSB
:
4011 case R_IA64_LTV64LSB
:
4012 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4015 case R_IA64_GPREL22
:
4016 case R_IA64_GPREL64I
:
4017 case R_IA64_GPREL32MSB
:
4018 case R_IA64_GPREL32LSB
:
4019 case R_IA64_GPREL64MSB
:
4020 case R_IA64_GPREL64LSB
:
4021 if (dynamic_symbol_p
)
4023 (*_bfd_error_handler
)
4024 (_("%B: @gprel relocation against dynamic symbol %s"),
4026 h
? h
->root
.root
.string
4027 : bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4033 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4036 case R_IA64_LTOFF22
:
4037 case R_IA64_LTOFF22X
:
4038 case R_IA64_LTOFF64I
:
4039 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4040 value
= set_got_entry (input_bfd
, info
, dyn_i
, (h
? h
->dynindx
: -1),
4041 rel
->r_addend
, value
, R_IA64_DIRNNLSB
);
4043 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4046 case R_IA64_PLTOFF22
:
4047 case R_IA64_PLTOFF64I
:
4048 case R_IA64_PLTOFF64MSB
:
4049 case R_IA64_PLTOFF64LSB
:
4050 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4051 value
= set_pltoff_entry (output_bfd
, info
, dyn_i
, value
, FALSE
);
4053 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4056 case R_IA64_FPTR64I
:
4057 case R_IA64_FPTR32MSB
:
4058 case R_IA64_FPTR32LSB
:
4059 case R_IA64_FPTR64MSB
:
4060 case R_IA64_FPTR64LSB
:
4061 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4062 if (dyn_i
->want_fptr
)
4064 if (!undef_weak_ref
)
4065 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4067 if (!dyn_i
->want_fptr
|| info
->pie
)
4070 unsigned int dyn_r_type
= r_type
;
4071 bfd_vma addend
= rel
->r_addend
;
4073 /* Otherwise, we expect the dynamic linker to create
4076 if (dyn_i
->want_fptr
)
4078 if (r_type
== R_IA64_FPTR64I
)
4080 /* We can't represent this without a dynamic symbol.
4081 Adjust the relocation to be against an output
4082 section symbol, which are always present in the
4083 dynamic symbol table. */
4084 /* ??? People shouldn't be doing non-pic code in
4085 shared libraries. Hork. */
4086 (*_bfd_error_handler
)
4087 (_("%B: linking non-pic code in a position independent executable"),
4094 dyn_r_type
= r_type
+ R_IA64_RELNNLSB
- R_IA64_FPTRNNLSB
;
4098 if (h
->dynindx
!= -1)
4099 dynindx
= h
->dynindx
;
4101 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4102 (info
, h
->root
.u
.def
.section
->owner
,
4103 global_sym_index (h
)));
4108 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4109 (info
, input_bfd
, (long) r_symndx
));
4113 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4114 srel
, rel
->r_offset
, dyn_r_type
,
4118 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4121 case R_IA64_LTOFF_FPTR22
:
4122 case R_IA64_LTOFF_FPTR64I
:
4123 case R_IA64_LTOFF_FPTR32MSB
:
4124 case R_IA64_LTOFF_FPTR32LSB
:
4125 case R_IA64_LTOFF_FPTR64MSB
:
4126 case R_IA64_LTOFF_FPTR64LSB
:
4130 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4131 if (dyn_i
->want_fptr
)
4133 BFD_ASSERT (h
== NULL
|| h
->dynindx
== -1);
4134 if (!undef_weak_ref
)
4135 value
= set_fptr_entry (output_bfd
, info
, dyn_i
, value
);
4140 /* Otherwise, we expect the dynamic linker to create
4144 if (h
->dynindx
!= -1)
4145 dynindx
= h
->dynindx
;
4147 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4148 (info
, h
->root
.u
.def
.section
->owner
,
4149 global_sym_index (h
)));
4152 dynindx
= (_bfd_elf_link_lookup_local_dynindx
4153 (info
, input_bfd
, (long) r_symndx
));
4157 value
= set_got_entry (output_bfd
, info
, dyn_i
, dynindx
,
4158 rel
->r_addend
, value
, R_IA64_FPTRNNLSB
);
4160 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4164 case R_IA64_PCREL32MSB
:
4165 case R_IA64_PCREL32LSB
:
4166 case R_IA64_PCREL64MSB
:
4167 case R_IA64_PCREL64LSB
:
4168 /* Install a dynamic relocation for this reloc. */
4169 if (dynamic_symbol_p
&& r_symndx
!= STN_UNDEF
)
4171 BFD_ASSERT (srel
!= NULL
);
4173 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4174 srel
, rel
->r_offset
, r_type
,
4175 h
->dynindx
, rel
->r_addend
);
4179 case R_IA64_PCREL21B
:
4180 case R_IA64_PCREL60B
:
4181 /* We should have created a PLT entry for any dynamic symbol. */
4184 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4186 if (dyn_i
&& dyn_i
->want_plt2
)
4188 /* Should have caught this earlier. */
4189 BFD_ASSERT (rel
->r_addend
== 0);
4191 value
= (ia64_info
->root
.splt
->output_section
->vma
4192 + ia64_info
->root
.splt
->output_offset
4193 + dyn_i
->plt2_offset
);
4197 /* Since there's no PLT entry, Validate that this is
4199 BFD_ASSERT (undef_weak_ref
|| sym_sec
->output_section
!= NULL
);
4201 /* If the symbol is undef_weak, we shouldn't be trying
4202 to call it. There's every chance that we'd wind up
4203 with an out-of-range fixup here. Don't bother setting
4204 any value at all. */
4210 case R_IA64_PCREL21BI
:
4211 case R_IA64_PCREL21F
:
4212 case R_IA64_PCREL21M
:
4213 case R_IA64_PCREL22
:
4214 case R_IA64_PCREL64I
:
4215 /* The PCREL21BI reloc is specifically not intended for use with
4216 dynamic relocs. PCREL21F and PCREL21M are used for speculation
4217 fixup code, and thus probably ought not be dynamic. The
4218 PCREL22 and PCREL64I relocs aren't emitted as dynamic relocs. */
4219 if (dynamic_symbol_p
)
4223 if (r_type
== R_IA64_PCREL21BI
)
4224 msg
= _("%B: @internal branch to dynamic symbol %s");
4225 else if (r_type
== R_IA64_PCREL21F
|| r_type
== R_IA64_PCREL21M
)
4226 msg
= _("%B: speculation fixup to dynamic symbol %s");
4228 msg
= _("%B: @pcrel relocation against dynamic symbol %s");
4229 (*_bfd_error_handler
) (msg
, input_bfd
,
4230 h
? h
->root
.root
.string
4231 : bfd_elf_sym_name (input_bfd
,
4241 /* Make pc-relative. */
4242 value
-= (input_section
->output_section
->vma
4243 + input_section
->output_offset
4244 + rel
->r_offset
) & ~ (bfd_vma
) 0x3;
4245 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4248 case R_IA64_SEGREL32MSB
:
4249 case R_IA64_SEGREL32LSB
:
4250 case R_IA64_SEGREL64MSB
:
4251 case R_IA64_SEGREL64LSB
:
4253 /* Find the segment that contains the output_section. */
4254 Elf_Internal_Phdr
*p
= _bfd_elf_find_segment_containing_section
4255 (output_bfd
, input_section
->output_section
);
4259 r
= bfd_reloc_notsupported
;
4263 /* The VMA of the segment is the vaddr of the associated
4265 if (value
> p
->p_vaddr
)
4266 value
-= p
->p_vaddr
;
4269 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4274 case R_IA64_SECREL32MSB
:
4275 case R_IA64_SECREL32LSB
:
4276 case R_IA64_SECREL64MSB
:
4277 case R_IA64_SECREL64LSB
:
4278 /* Make output-section relative to section where the symbol
4279 is defined. PR 475 */
4281 value
-= sym_sec
->output_section
->vma
;
4282 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4285 case R_IA64_IPLTMSB
:
4286 case R_IA64_IPLTLSB
:
4287 /* Install a dynamic relocation for this reloc. */
4288 if ((dynamic_symbol_p
|| info
->shared
)
4289 && (input_section
->flags
& SEC_ALLOC
) != 0)
4291 BFD_ASSERT (srel
!= NULL
);
4293 /* If we don't need dynamic symbol lookup, install two
4294 RELATIVE relocations. */
4295 if (!dynamic_symbol_p
)
4297 unsigned int dyn_r_type
;
4299 if (r_type
== R_IA64_IPLTMSB
)
4300 dyn_r_type
= R_IA64_REL64MSB
;
4302 dyn_r_type
= R_IA64_REL64LSB
;
4304 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4306 srel
, rel
->r_offset
,
4307 dyn_r_type
, 0, value
);
4308 elfNN_ia64_install_dyn_reloc (output_bfd
, info
,
4310 srel
, rel
->r_offset
+ 8,
4311 dyn_r_type
, 0, gp_val
);
4314 elfNN_ia64_install_dyn_reloc (output_bfd
, info
, input_section
,
4315 srel
, rel
->r_offset
, r_type
,
4316 h
->dynindx
, rel
->r_addend
);
4319 if (r_type
== R_IA64_IPLTMSB
)
4320 r_type
= R_IA64_DIR64MSB
;
4322 r_type
= R_IA64_DIR64LSB
;
4323 ia64_elf_install_value (hit_addr
, value
, r_type
);
4324 r
= ia64_elf_install_value (hit_addr
+ 8, gp_val
, r_type
);
4327 case R_IA64_TPREL14
:
4328 case R_IA64_TPREL22
:
4329 case R_IA64_TPREL64I
:
4330 if (elf_hash_table (info
)->tls_sec
== NULL
)
4331 goto missing_tls_sec
;
4332 value
-= elfNN_ia64_tprel_base (info
);
4333 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4336 case R_IA64_DTPREL14
:
4337 case R_IA64_DTPREL22
:
4338 case R_IA64_DTPREL64I
:
4339 case R_IA64_DTPREL32LSB
:
4340 case R_IA64_DTPREL32MSB
:
4341 case R_IA64_DTPREL64LSB
:
4342 case R_IA64_DTPREL64MSB
:
4343 if (elf_hash_table (info
)->tls_sec
== NULL
)
4344 goto missing_tls_sec
;
4345 value
-= elfNN_ia64_dtprel_base (info
);
4346 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4349 case R_IA64_LTOFF_TPREL22
:
4350 case R_IA64_LTOFF_DTPMOD22
:
4351 case R_IA64_LTOFF_DTPREL22
:
4354 long dynindx
= h
? h
->dynindx
: -1;
4355 bfd_vma r_addend
= rel
->r_addend
;
4360 case R_IA64_LTOFF_TPREL22
:
4361 if (!dynamic_symbol_p
)
4363 if (elf_hash_table (info
)->tls_sec
== NULL
)
4364 goto missing_tls_sec
;
4366 value
-= elfNN_ia64_tprel_base (info
);
4369 r_addend
+= value
- elfNN_ia64_dtprel_base (info
);
4373 got_r_type
= R_IA64_TPREL64LSB
;
4375 case R_IA64_LTOFF_DTPMOD22
:
4376 if (!dynamic_symbol_p
&& !info
->shared
)
4378 got_r_type
= R_IA64_DTPMOD64LSB
;
4380 case R_IA64_LTOFF_DTPREL22
:
4381 if (!dynamic_symbol_p
)
4383 if (elf_hash_table (info
)->tls_sec
== NULL
)
4384 goto missing_tls_sec
;
4385 value
-= elfNN_ia64_dtprel_base (info
);
4387 got_r_type
= R_IA64_DTPRELNNLSB
;
4390 dyn_i
= get_dyn_sym_info (ia64_info
, h
, input_bfd
, rel
, FALSE
);
4391 value
= set_got_entry (input_bfd
, info
, dyn_i
, dynindx
, r_addend
,
4394 r
= ia64_elf_install_value (hit_addr
, value
, r_type
);
4399 r
= bfd_reloc_notsupported
;
4408 case bfd_reloc_undefined
:
4409 /* This can happen for global table relative relocs if
4410 __gp is undefined. This is a panic situation so we
4411 don't try to continue. */
4412 (*info
->callbacks
->undefined_symbol
)
4413 (info
, "__gp", input_bfd
, input_section
, rel
->r_offset
, 1);
4416 case bfd_reloc_notsupported
:
4421 name
= h
->root
.root
.string
;
4423 name
= bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4425 if (!(*info
->callbacks
->warning
) (info
, _("unsupported reloc"),
4427 input_section
, rel
->r_offset
))
4433 case bfd_reloc_dangerous
:
4434 case bfd_reloc_outofrange
:
4435 case bfd_reloc_overflow
:
4442 name
= h
->root
.root
.string
;
4444 name
= bfd_elf_sym_name (input_bfd
, symtab_hdr
, sym
,
4449 case R_IA64_TPREL14
:
4450 case R_IA64_TPREL22
:
4451 case R_IA64_TPREL64I
:
4452 case R_IA64_DTPREL14
:
4453 case R_IA64_DTPREL22
:
4454 case R_IA64_DTPREL64I
:
4455 case R_IA64_DTPREL32LSB
:
4456 case R_IA64_DTPREL32MSB
:
4457 case R_IA64_DTPREL64LSB
:
4458 case R_IA64_DTPREL64MSB
:
4459 case R_IA64_LTOFF_TPREL22
:
4460 case R_IA64_LTOFF_DTPMOD22
:
4461 case R_IA64_LTOFF_DTPREL22
:
4462 (*_bfd_error_handler
)
4463 (_("%B: missing TLS section for relocation %s against `%s' at 0x%lx in section `%A'."),
4464 input_bfd
, input_section
, howto
->name
, name
,
4468 case R_IA64_PCREL21B
:
4469 case R_IA64_PCREL21BI
:
4470 case R_IA64_PCREL21M
:
4471 case R_IA64_PCREL21F
:
4472 if (is_elf_hash_table (info
->hash
))
4474 /* Relaxtion is always performed for ELF output.
4475 Overflow failures for those relocations mean
4476 that the section is too big to relax. */
4477 (*_bfd_error_handler
)
4478 (_("%B: Can't relax br (%s) to `%s' at 0x%lx in section `%A' with size 0x%lx (> 0x1000000)."),
4479 input_bfd
, input_section
, howto
->name
, name
,
4480 rel
->r_offset
, input_section
->size
);
4484 if (!(*info
->callbacks
->reloc_overflow
) (info
,
4506 elfNN_ia64_finish_dynamic_symbol (bfd
*output_bfd
,
4507 struct bfd_link_info
*info
,
4508 struct elf_link_hash_entry
*h
,
4509 Elf_Internal_Sym
*sym
)
4511 struct elfNN_ia64_link_hash_table
*ia64_info
;
4512 struct elfNN_ia64_dyn_sym_info
*dyn_i
;
4514 ia64_info
= elfNN_ia64_hash_table (info
);
4515 if (ia64_info
== NULL
)
4518 dyn_i
= get_dyn_sym_info (ia64_info
, h
, NULL
, NULL
, FALSE
);
4520 /* Fill in the PLT data, if required. */
4521 if (dyn_i
&& dyn_i
->want_plt
)
4523 Elf_Internal_Rela outrel
;
4526 bfd_vma plt_addr
, pltoff_addr
, gp_val
, plt_index
;
4528 gp_val
= _bfd_get_gp_value (output_bfd
);
4530 /* Initialize the minimal PLT entry. */
4532 plt_index
= (dyn_i
->plt_offset
- PLT_HEADER_SIZE
) / PLT_MIN_ENTRY_SIZE
;
4533 plt_sec
= ia64_info
->root
.splt
;
4534 loc
= plt_sec
->contents
+ dyn_i
->plt_offset
;
4536 memcpy (loc
, plt_min_entry
, PLT_MIN_ENTRY_SIZE
);
4537 ia64_elf_install_value (loc
, plt_index
, R_IA64_IMM22
);
4538 ia64_elf_install_value (loc
+2, -dyn_i
->plt_offset
, R_IA64_PCREL21B
);
4540 plt_addr
= (plt_sec
->output_section
->vma
4541 + plt_sec
->output_offset
4542 + dyn_i
->plt_offset
);
4543 pltoff_addr
= set_pltoff_entry (output_bfd
, info
, dyn_i
, plt_addr
, TRUE
);
4545 /* Initialize the FULL PLT entry, if needed. */
4546 if (dyn_i
->want_plt2
)
4548 loc
= plt_sec
->contents
+ dyn_i
->plt2_offset
;
4550 memcpy (loc
, plt_full_entry
, PLT_FULL_ENTRY_SIZE
);
4551 ia64_elf_install_value (loc
, pltoff_addr
- gp_val
, R_IA64_IMM22
);
4553 /* Mark the symbol as undefined, rather than as defined in the
4554 plt section. Leave the value alone. */
4555 /* ??? We didn't redefine it in adjust_dynamic_symbol in the
4556 first place. But perhaps elflink.c did some for us. */
4557 if (!h
->def_regular
)
4558 sym
->st_shndx
= SHN_UNDEF
;
4561 /* Create the dynamic relocation. */
4562 outrel
.r_offset
= pltoff_addr
;
4563 if (bfd_little_endian (output_bfd
))
4564 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTLSB
);
4566 outrel
.r_info
= ELFNN_R_INFO (h
->dynindx
, R_IA64_IPLTMSB
);
4567 outrel
.r_addend
= 0;
4569 /* This is fun. In the .IA_64.pltoff section, we've got entries
4570 that correspond both to real PLT entries, and those that
4571 happened to resolve to local symbols but need to be created
4572 to satisfy @pltoff relocations. The .rela.IA_64.pltoff
4573 relocations for the real PLT should come at the end of the
4574 section, so that they can be indexed by plt entry at runtime.
4576 We emitted all of the relocations for the non-PLT @pltoff
4577 entries during relocate_section. So we can consider the
4578 existing sec->reloc_count to be the base of the array of
4581 loc
= ia64_info
->rel_pltoff_sec
->contents
;
4582 loc
+= ((ia64_info
->rel_pltoff_sec
->reloc_count
+ plt_index
)
4583 * sizeof (ElfNN_External_Rela
));
4584 bfd_elfNN_swap_reloca_out (output_bfd
, &outrel
, loc
);
4587 /* Mark some specially defined symbols as absolute. */
4588 if (strcmp (h
->root
.root
.string
, "_DYNAMIC") == 0
4589 || h
== ia64_info
->root
.hgot
4590 || h
== ia64_info
->root
.hplt
)
4591 sym
->st_shndx
= SHN_ABS
;
4597 elfNN_ia64_finish_dynamic_sections (bfd
*abfd
,
4598 struct bfd_link_info
*info
)
4600 struct elfNN_ia64_link_hash_table
*ia64_info
;
4603 ia64_info
= elfNN_ia64_hash_table (info
);
4604 if (ia64_info
== NULL
)
4607 dynobj
= ia64_info
->root
.dynobj
;
4609 if (elf_hash_table (info
)->dynamic_sections_created
)
4611 ElfNN_External_Dyn
*dyncon
, *dynconend
;
4612 asection
*sdyn
, *sgotplt
;
4615 sdyn
= bfd_get_section_by_name (dynobj
, ".dynamic");
4616 sgotplt
= bfd_get_section_by_name (dynobj
, ".got.plt");
4617 BFD_ASSERT (sdyn
!= NULL
);
4618 dyncon
= (ElfNN_External_Dyn
*) sdyn
->contents
;
4619 dynconend
= (ElfNN_External_Dyn
*) (sdyn
->contents
+ sdyn
->size
);
4621 gp_val
= _bfd_get_gp_value (abfd
);
4623 for (; dyncon
< dynconend
; dyncon
++)
4625 Elf_Internal_Dyn dyn
;
4627 bfd_elfNN_swap_dyn_in (dynobj
, dyncon
, &dyn
);
4632 dyn
.d_un
.d_ptr
= gp_val
;
4636 dyn
.d_un
.d_val
= (ia64_info
->minplt_entries
4637 * sizeof (ElfNN_External_Rela
));
4641 /* See the comment above in finish_dynamic_symbol. */
4642 dyn
.d_un
.d_ptr
= (ia64_info
->rel_pltoff_sec
->output_section
->vma
4643 + ia64_info
->rel_pltoff_sec
->output_offset
4644 + (ia64_info
->rel_pltoff_sec
->reloc_count
4645 * sizeof (ElfNN_External_Rela
)));
4648 case DT_IA_64_PLT_RESERVE
:
4649 dyn
.d_un
.d_ptr
= (sgotplt
->output_section
->vma
4650 + sgotplt
->output_offset
);
4654 /* Do not have RELASZ include JMPREL. This makes things
4655 easier on ld.so. This is not what the rest of BFD set up. */
4656 dyn
.d_un
.d_val
-= (ia64_info
->minplt_entries
4657 * sizeof (ElfNN_External_Rela
));
4661 bfd_elfNN_swap_dyn_out (abfd
, &dyn
, dyncon
);
4664 /* Initialize the PLT0 entry. */
4665 if (ia64_info
->root
.splt
)
4667 bfd_byte
*loc
= ia64_info
->root
.splt
->contents
;
4670 memcpy (loc
, plt_header
, PLT_HEADER_SIZE
);
4672 pltres
= (sgotplt
->output_section
->vma
4673 + sgotplt
->output_offset
4676 ia64_elf_install_value (loc
+1, pltres
, R_IA64_GPREL22
);
4683 /* ELF file flag handling: */
4685 /* Function to keep IA-64 specific file flags. */
4687 elfNN_ia64_set_private_flags (bfd
*abfd
, flagword flags
)
4689 BFD_ASSERT (!elf_flags_init (abfd
)
4690 || elf_elfheader (abfd
)->e_flags
== flags
);
4692 elf_elfheader (abfd
)->e_flags
= flags
;
4693 elf_flags_init (abfd
) = TRUE
;
4697 /* Merge backend specific data from an object file to the output
4698 object file when linking. */
4700 elfNN_ia64_merge_private_bfd_data (bfd
*ibfd
, bfd
*obfd
)
4704 bfd_boolean ok
= TRUE
;
4706 /* Don't even pretend to support mixed-format linking. */
4707 if (bfd_get_flavour (ibfd
) != bfd_target_elf_flavour
4708 || bfd_get_flavour (obfd
) != bfd_target_elf_flavour
)
4711 in_flags
= elf_elfheader (ibfd
)->e_flags
;
4712 out_flags
= elf_elfheader (obfd
)->e_flags
;
4714 if (! elf_flags_init (obfd
))
4716 elf_flags_init (obfd
) = TRUE
;
4717 elf_elfheader (obfd
)->e_flags
= in_flags
;
4719 if (bfd_get_arch (obfd
) == bfd_get_arch (ibfd
)
4720 && bfd_get_arch_info (obfd
)->the_default
)
4722 return bfd_set_arch_mach (obfd
, bfd_get_arch (ibfd
),
4723 bfd_get_mach (ibfd
));
4729 /* Check flag compatibility. */
4730 if (in_flags
== out_flags
)
4733 /* Output has EF_IA_64_REDUCEDFP set only if all inputs have it set. */
4734 if (!(in_flags
& EF_IA_64_REDUCEDFP
) && (out_flags
& EF_IA_64_REDUCEDFP
))
4735 elf_elfheader (obfd
)->e_flags
&= ~EF_IA_64_REDUCEDFP
;
4737 if ((in_flags
& EF_IA_64_TRAPNIL
) != (out_flags
& EF_IA_64_TRAPNIL
))
4739 (*_bfd_error_handler
)
4740 (_("%B: linking trap-on-NULL-dereference with non-trapping files"),
4743 bfd_set_error (bfd_error_bad_value
);
4746 if ((in_flags
& EF_IA_64_BE
) != (out_flags
& EF_IA_64_BE
))
4748 (*_bfd_error_handler
)
4749 (_("%B: linking big-endian files with little-endian files"),
4752 bfd_set_error (bfd_error_bad_value
);
4755 if ((in_flags
& EF_IA_64_ABI64
) != (out_flags
& EF_IA_64_ABI64
))
4757 (*_bfd_error_handler
)
4758 (_("%B: linking 64-bit files with 32-bit files"),
4761 bfd_set_error (bfd_error_bad_value
);
4764 if ((in_flags
& EF_IA_64_CONS_GP
) != (out_flags
& EF_IA_64_CONS_GP
))
4766 (*_bfd_error_handler
)
4767 (_("%B: linking constant-gp files with non-constant-gp files"),
4770 bfd_set_error (bfd_error_bad_value
);
4773 if ((in_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
)
4774 != (out_flags
& EF_IA_64_NOFUNCDESC_CONS_GP
))
4776 (*_bfd_error_handler
)
4777 (_("%B: linking auto-pic files with non-auto-pic files"),
4780 bfd_set_error (bfd_error_bad_value
);
4788 elfNN_ia64_print_private_bfd_data (bfd
*abfd
, PTR ptr
)
4790 FILE *file
= (FILE *) ptr
;
4791 flagword flags
= elf_elfheader (abfd
)->e_flags
;
4793 BFD_ASSERT (abfd
!= NULL
&& ptr
!= NULL
);
4795 fprintf (file
, "private flags = %s%s%s%s%s%s%s%s\n",
4796 (flags
& EF_IA_64_TRAPNIL
) ? "TRAPNIL, " : "",
4797 (flags
& EF_IA_64_EXT
) ? "EXT, " : "",
4798 (flags
& EF_IA_64_BE
) ? "BE, " : "LE, ",
4799 (flags
& EF_IA_64_REDUCEDFP
) ? "REDUCEDFP, " : "",
4800 (flags
& EF_IA_64_CONS_GP
) ? "CONS_GP, " : "",
4801 (flags
& EF_IA_64_NOFUNCDESC_CONS_GP
) ? "NOFUNCDESC_CONS_GP, " : "",
4802 (flags
& EF_IA_64_ABSOLUTE
) ? "ABSOLUTE, " : "",
4803 (flags
& EF_IA_64_ABI64
) ? "ABI64" : "ABI32");
4805 _bfd_elf_print_private_bfd_data (abfd
, ptr
);
4809 static enum elf_reloc_type_class
4810 elfNN_ia64_reloc_type_class (const Elf_Internal_Rela
*rela
)
4812 switch ((int) ELFNN_R_TYPE (rela
->r_info
))
4814 case R_IA64_REL32MSB
:
4815 case R_IA64_REL32LSB
:
4816 case R_IA64_REL64MSB
:
4817 case R_IA64_REL64LSB
:
4818 return reloc_class_relative
;
4819 case R_IA64_IPLTMSB
:
4820 case R_IA64_IPLTLSB
:
4821 return reloc_class_plt
;
4823 return reloc_class_copy
;
4825 return reloc_class_normal
;
4829 static const struct bfd_elf_special_section elfNN_ia64_special_sections
[] =
4831 { STRING_COMMA_LEN (".sbss"), -1, SHT_NOBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4832 { STRING_COMMA_LEN (".sdata"), -1, SHT_PROGBITS
, SHF_ALLOC
+ SHF_WRITE
+ SHF_IA_64_SHORT
},
4833 { NULL
, 0, 0, 0, 0 }
4837 elfNN_ia64_object_p (bfd
*abfd
)
4840 asection
*group
, *unwi
, *unw
;
4843 char *unwi_name
, *unw_name
;
4846 if (abfd
->flags
& DYNAMIC
)
4849 /* Flags for fake group section. */
4850 flags
= (SEC_LINKER_CREATED
| SEC_GROUP
| SEC_LINK_ONCE
4853 /* We add a fake section group for each .gnu.linkonce.t.* section,
4854 which isn't in a section group, and its unwind sections. */
4855 for (sec
= abfd
->sections
; sec
!= NULL
; sec
= sec
->next
)
4857 if (elf_sec_group (sec
) == NULL
4858 && ((sec
->flags
& (SEC_LINK_ONCE
| SEC_CODE
| SEC_GROUP
))
4859 == (SEC_LINK_ONCE
| SEC_CODE
))
4860 && CONST_STRNEQ (sec
->name
, ".gnu.linkonce.t."))
4862 name
= sec
->name
+ 16;
4864 amt
= strlen (name
) + sizeof (".gnu.linkonce.ia64unwi.");
4865 unwi_name
= bfd_alloc (abfd
, amt
);
4869 strcpy (stpcpy (unwi_name
, ".gnu.linkonce.ia64unwi."), name
);
4870 unwi
= bfd_get_section_by_name (abfd
, unwi_name
);
4872 amt
= strlen (name
) + sizeof (".gnu.linkonce.ia64unw.");
4873 unw_name
= bfd_alloc (abfd
, amt
);
4877 strcpy (stpcpy (unw_name
, ".gnu.linkonce.ia64unw."), name
);
4878 unw
= bfd_get_section_by_name (abfd
, unw_name
);
4880 /* We need to create a fake group section for it and its
4882 group
= bfd_make_section_anyway_with_flags (abfd
, name
,
4887 /* Move the fake group section to the beginning. */
4888 bfd_section_list_remove (abfd
, group
);
4889 bfd_section_list_prepend (abfd
, group
);
4891 elf_next_in_group (group
) = sec
;
4893 elf_group_name (sec
) = name
;
4894 elf_next_in_group (sec
) = sec
;
4895 elf_sec_group (sec
) = group
;
4899 elf_group_name (unwi
) = name
;
4900 elf_next_in_group (unwi
) = sec
;
4901 elf_next_in_group (sec
) = unwi
;
4902 elf_sec_group (unwi
) = group
;
4907 elf_group_name (unw
) = name
;
4910 elf_next_in_group (unw
) = elf_next_in_group (unwi
);
4911 elf_next_in_group (unwi
) = unw
;
4915 elf_next_in_group (unw
) = sec
;
4916 elf_next_in_group (sec
) = unw
;
4918 elf_sec_group (unw
) = group
;
4921 /* Fake SHT_GROUP section header. */
4922 elf_section_data (group
)->this_hdr
.bfd_section
= group
;
4923 elf_section_data (group
)->this_hdr
.sh_type
= SHT_GROUP
;
4930 elfNN_ia64_hpux_vec (const bfd_target
*vec
)
4932 extern const bfd_target bfd_elfNN_ia64_hpux_big_vec
;
4933 return (vec
== & bfd_elfNN_ia64_hpux_big_vec
);
4937 elfNN_hpux_post_process_headers (bfd
*abfd
,
4938 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
4940 Elf_Internal_Ehdr
*i_ehdrp
= elf_elfheader (abfd
);
4942 i_ehdrp
->e_ident
[EI_OSABI
] = get_elf_backend_data (abfd
)->elf_osabi
;
4943 i_ehdrp
->e_ident
[EI_ABIVERSION
] = 1;
4947 elfNN_hpux_backend_section_from_bfd_section (bfd
*abfd ATTRIBUTE_UNUSED
,
4948 asection
*sec
, int *retval
)
4950 if (bfd_is_com_section (sec
))
4952 *retval
= SHN_IA_64_ANSI_COMMON
;
4959 elfNN_hpux_backend_symbol_processing (bfd
*abfd ATTRIBUTE_UNUSED
,
4962 elf_symbol_type
*elfsym
= (elf_symbol_type
*) asym
;
4964 switch (elfsym
->internal_elf_sym
.st_shndx
)
4966 case SHN_IA_64_ANSI_COMMON
:
4967 asym
->section
= bfd_com_section_ptr
;
4968 asym
->value
= elfsym
->internal_elf_sym
.st_size
;
4969 asym
->flags
&= ~BSF_GLOBAL
;
4974 #define TARGET_LITTLE_SYM bfd_elfNN_ia64_little_vec
4975 #define TARGET_LITTLE_NAME "elfNN-ia64-little"
4976 #define TARGET_BIG_SYM bfd_elfNN_ia64_big_vec
4977 #define TARGET_BIG_NAME "elfNN-ia64-big"
4978 #define ELF_ARCH bfd_arch_ia64
4979 #define ELF_TARGET_ID IA64_ELF_DATA
4980 #define ELF_MACHINE_CODE EM_IA_64
4981 #define ELF_MACHINE_ALT1 1999 /* EAS2.3 */
4982 #define ELF_MACHINE_ALT2 1998 /* EAS2.2 */
4983 #define ELF_MAXPAGESIZE 0x10000 /* 64KB */
4984 #define ELF_COMMONPAGESIZE 0x4000 /* 16KB */
4986 #define elf_backend_section_from_shdr \
4987 elfNN_ia64_section_from_shdr
4988 #define elf_backend_section_flags \
4989 elfNN_ia64_section_flags
4990 #define elf_backend_fake_sections \
4991 elfNN_ia64_fake_sections
4992 #define elf_backend_final_write_processing \
4993 elfNN_ia64_final_write_processing
4994 #define elf_backend_add_symbol_hook \
4995 elfNN_ia64_add_symbol_hook
4996 #define elf_backend_additional_program_headers \
4997 elfNN_ia64_additional_program_headers
4998 #define elf_backend_modify_segment_map \
4999 elfNN_ia64_modify_segment_map
5000 #define elf_backend_modify_program_headers \
5001 elfNN_ia64_modify_program_headers
5002 #define elf_info_to_howto \
5003 elfNN_ia64_info_to_howto
5005 #define bfd_elfNN_bfd_reloc_type_lookup \
5006 ia64_elf_reloc_type_lookup
5007 #define bfd_elfNN_bfd_reloc_name_lookup \
5008 ia64_elf_reloc_name_lookup
5009 #define bfd_elfNN_bfd_is_local_label_name \
5010 elfNN_ia64_is_local_label_name
5011 #define bfd_elfNN_bfd_relax_section \
5012 elfNN_ia64_relax_section
5014 #define elf_backend_object_p \
5017 /* Stuff for the BFD linker: */
5018 #define bfd_elfNN_bfd_link_hash_table_create \
5019 elfNN_ia64_hash_table_create
5020 #define bfd_elfNN_bfd_link_hash_table_free \
5021 elfNN_ia64_hash_table_free
5022 #define elf_backend_create_dynamic_sections \
5023 elfNN_ia64_create_dynamic_sections
5024 #define elf_backend_check_relocs \
5025 elfNN_ia64_check_relocs
5026 #define elf_backend_adjust_dynamic_symbol \
5027 elfNN_ia64_adjust_dynamic_symbol
5028 #define elf_backend_size_dynamic_sections \
5029 elfNN_ia64_size_dynamic_sections
5030 #define elf_backend_omit_section_dynsym \
5031 ((bfd_boolean (*) (bfd *, struct bfd_link_info *, asection *)) bfd_true)
5032 #define elf_backend_relocate_section \
5033 elfNN_ia64_relocate_section
5034 #define elf_backend_finish_dynamic_symbol \
5035 elfNN_ia64_finish_dynamic_symbol
5036 #define elf_backend_finish_dynamic_sections \
5037 elfNN_ia64_finish_dynamic_sections
5038 #define bfd_elfNN_bfd_final_link \
5039 elfNN_ia64_final_link
5041 #define bfd_elfNN_bfd_merge_private_bfd_data \
5042 elfNN_ia64_merge_private_bfd_data
5043 #define bfd_elfNN_bfd_set_private_flags \
5044 elfNN_ia64_set_private_flags
5045 #define bfd_elfNN_bfd_print_private_bfd_data \
5046 elfNN_ia64_print_private_bfd_data
5048 #define elf_backend_plt_readonly 1
5049 #define elf_backend_want_plt_sym 0
5050 #define elf_backend_plt_alignment 5
5051 #define elf_backend_got_header_size 0
5052 #define elf_backend_want_got_plt 1
5053 #define elf_backend_may_use_rel_p 1
5054 #define elf_backend_may_use_rela_p 1
5055 #define elf_backend_default_use_rela_p 1
5056 #define elf_backend_want_dynbss 0
5057 #define elf_backend_copy_indirect_symbol elfNN_ia64_hash_copy_indirect
5058 #define elf_backend_hide_symbol elfNN_ia64_hash_hide_symbol
5059 #define elf_backend_fixup_symbol _bfd_elf_link_hash_fixup_symbol
5060 #define elf_backend_reloc_type_class elfNN_ia64_reloc_type_class
5061 #define elf_backend_rela_normal 1
5062 #define elf_backend_special_sections elfNN_ia64_special_sections
5063 #define elf_backend_default_execstack 0
5065 /* FIXME: PR 290: The Intel C compiler generates SHT_IA_64_UNWIND with
5066 SHF_LINK_ORDER. But it doesn't set the sh_link or sh_info fields.
5067 We don't want to flood users with so many error messages. We turn
5068 off the warning for now. It will be turned on later when the Intel
5069 compiler is fixed. */
5070 #define elf_backend_link_order_error_handler NULL
5072 #include "elfNN-target.h"
5074 /* HPUX-specific vectors. */
5076 #undef TARGET_LITTLE_SYM
5077 #undef TARGET_LITTLE_NAME
5078 #undef TARGET_BIG_SYM
5079 #define TARGET_BIG_SYM bfd_elfNN_ia64_hpux_big_vec
5080 #undef TARGET_BIG_NAME
5081 #define TARGET_BIG_NAME "elfNN-ia64-hpux-big"
5083 /* These are HP-UX specific functions. */
5085 #undef elf_backend_post_process_headers
5086 #define elf_backend_post_process_headers elfNN_hpux_post_process_headers
5088 #undef elf_backend_section_from_bfd_section
5089 #define elf_backend_section_from_bfd_section elfNN_hpux_backend_section_from_bfd_section
5091 #undef elf_backend_symbol_processing
5092 #define elf_backend_symbol_processing elfNN_hpux_backend_symbol_processing
5094 #undef elf_backend_want_p_paddr_set_to_zero
5095 #define elf_backend_want_p_paddr_set_to_zero 1
5097 #undef ELF_COMMONPAGESIZE
5099 #define ELF_OSABI ELFOSABI_HPUX
5102 #define elfNN_bed elfNN_ia64_hpux_bed
5104 #include "elfNN-target.h"