1 // sparc.cc -- sparc target support for gold.
3 // Copyright 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
4 // Written by David S. Miller <davem@davemloft.net>.
6 // This file is part of gold.
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.
30 #include "parameters.h"
37 #include "copy-relocs.h"
39 #include "target-reloc.h"
40 #include "target-select.h"
50 template<int size
, bool big_endian
>
51 class Output_data_plt_sparc
;
53 template<int size
, bool big_endian
>
54 class Target_sparc
: public Sized_target
<size
, big_endian
>
57 typedef Output_data_reloc
<elfcpp::SHT_RELA
, true, size
, big_endian
> Reloc_section
;
60 : Sized_target
<size
, big_endian
>(&sparc_info
),
61 got_(NULL
), plt_(NULL
), rela_dyn_(NULL
),
62 copy_relocs_(elfcpp::R_SPARC_COPY
), dynbss_(NULL
),
63 got_mod_index_offset_(-1U), tls_get_addr_sym_(NULL
)
67 // Process the relocations to determine unreferenced sections for
68 // garbage collection.
70 gc_process_relocs(Symbol_table
* symtab
,
72 Sized_relobj_file
<size
, big_endian
>* object
,
73 unsigned int data_shndx
,
75 const unsigned char* prelocs
,
77 Output_section
* output_section
,
78 bool needs_special_offset_handling
,
79 size_t local_symbol_count
,
80 const unsigned char* plocal_symbols
);
82 // Scan the relocations to look for symbol adjustments.
84 scan_relocs(Symbol_table
* symtab
,
86 Sized_relobj_file
<size
, big_endian
>* object
,
87 unsigned int data_shndx
,
89 const unsigned char* prelocs
,
91 Output_section
* output_section
,
92 bool needs_special_offset_handling
,
93 size_t local_symbol_count
,
94 const unsigned char* plocal_symbols
);
95 // Finalize the sections.
97 do_finalize_sections(Layout
*, const Input_objects
*, Symbol_table
*);
99 // Return the value to use for a dynamic which requires special
102 do_dynsym_value(const Symbol
*) const;
104 // Relocate a section.
106 relocate_section(const Relocate_info
<size
, big_endian
>*,
107 unsigned int sh_type
,
108 const unsigned char* prelocs
,
110 Output_section
* output_section
,
111 bool needs_special_offset_handling
,
113 typename
elfcpp::Elf_types
<size
>::Elf_Addr view_address
,
114 section_size_type view_size
,
115 const Reloc_symbol_changes
*);
117 // Scan the relocs during a relocatable link.
119 scan_relocatable_relocs(Symbol_table
* symtab
,
121 Sized_relobj_file
<size
, big_endian
>* object
,
122 unsigned int data_shndx
,
123 unsigned int sh_type
,
124 const unsigned char* prelocs
,
126 Output_section
* output_section
,
127 bool needs_special_offset_handling
,
128 size_t local_symbol_count
,
129 const unsigned char* plocal_symbols
,
130 Relocatable_relocs
*);
132 // Relocate a section during a relocatable link.
134 relocate_for_relocatable(const Relocate_info
<size
, big_endian
>*,
135 unsigned int sh_type
,
136 const unsigned char* prelocs
,
138 Output_section
* output_section
,
139 off_t offset_in_output_section
,
140 const Relocatable_relocs
*,
142 typename
elfcpp::Elf_types
<size
>::Elf_Addr view_address
,
143 section_size_type view_size
,
144 unsigned char* reloc_view
,
145 section_size_type reloc_view_size
);
146 // Return whether SYM is defined by the ABI.
148 do_is_defined_by_abi(const Symbol
* sym
) const
150 // XXX Really need to support this better...
151 if (sym
->type() == elfcpp::STT_SPARC_REGISTER
)
154 return strcmp(sym
->name(), "___tls_get_addr") == 0;
157 // Return whether there is a GOT section.
159 has_got_section() const
160 { return this->got_
!= NULL
; }
162 // Return the size of the GOT section.
166 gold_assert(this->got_
!= NULL
);
167 return this->got_
->data_size();
170 // Return the number of entries in the GOT.
172 got_entry_count() const
174 if (this->got_
== NULL
)
176 return this->got_size() / (size
/ 8);
179 // Return the number of entries in the PLT.
181 plt_entry_count() const;
183 // Return the offset of the first non-reserved PLT entry.
185 first_plt_entry_offset() const;
187 // Return the size of each PLT entry.
189 plt_entry_size() const;
193 // The class which scans relocations.
198 : issued_non_pic_error_(false)
202 get_reference_flags(unsigned int r_type
);
205 local(Symbol_table
* symtab
, Layout
* layout
, Target_sparc
* target
,
206 Sized_relobj_file
<size
, big_endian
>* object
,
207 unsigned int data_shndx
,
208 Output_section
* output_section
,
209 const elfcpp::Rela
<size
, big_endian
>& reloc
, unsigned int r_type
,
210 const elfcpp::Sym
<size
, big_endian
>& lsym
);
213 global(Symbol_table
* symtab
, Layout
* layout
, Target_sparc
* target
,
214 Sized_relobj_file
<size
, big_endian
>* object
,
215 unsigned int data_shndx
,
216 Output_section
* output_section
,
217 const elfcpp::Rela
<size
, big_endian
>& reloc
, unsigned int r_type
,
221 local_reloc_may_be_function_pointer(Symbol_table
* , Layout
* ,
223 Sized_relobj_file
<size
, big_endian
>* ,
226 const elfcpp::Rela
<size
, big_endian
>& ,
228 const elfcpp::Sym
<size
, big_endian
>&)
232 global_reloc_may_be_function_pointer(Symbol_table
* , Layout
* ,
234 Sized_relobj_file
<size
, big_endian
>* ,
237 const elfcpp::Rela
<size
,
239 unsigned int , Symbol
*)
245 unsupported_reloc_local(Sized_relobj_file
<size
, big_endian
>*,
246 unsigned int r_type
);
249 unsupported_reloc_global(Sized_relobj_file
<size
, big_endian
>*,
250 unsigned int r_type
, Symbol
*);
253 generate_tls_call(Symbol_table
* symtab
, Layout
* layout
,
254 Target_sparc
* target
);
257 check_non_pic(Relobj
*, unsigned int r_type
);
259 // Whether we have issued an error about a non-PIC compilation.
260 bool issued_non_pic_error_
;
263 // The class which implements relocation.
268 : ignore_gd_add_(false)
273 if (this->ignore_gd_add_
)
275 // FIXME: This needs to specify the location somehow.
276 gold_error(_("missing expected TLS relocation"));
280 // Do a relocation. Return false if the caller should not issue
281 // any warnings about this relocation.
283 relocate(const Relocate_info
<size
, big_endian
>*, Target_sparc
*,
284 Output_section
*, size_t relnum
,
285 const elfcpp::Rela
<size
, big_endian
>&,
286 unsigned int r_type
, const Sized_symbol
<size
>*,
287 const Symbol_value
<size
>*,
289 typename
elfcpp::Elf_types
<size
>::Elf_Addr
,
293 // Do a TLS relocation.
295 relocate_tls(const Relocate_info
<size
, big_endian
>*, Target_sparc
* target
,
296 size_t relnum
, const elfcpp::Rela
<size
, big_endian
>&,
297 unsigned int r_type
, const Sized_symbol
<size
>*,
298 const Symbol_value
<size
>*,
300 typename
elfcpp::Elf_types
<size
>::Elf_Addr
,
303 // Ignore the next relocation which should be R_SPARC_TLS_GD_ADD
307 // A class which returns the size required for a relocation type,
308 // used while scanning relocs during a relocatable link.
309 class Relocatable_size_for_reloc
313 get_size_for_reloc(unsigned int, Relobj
*);
316 // Get the GOT section, creating it if necessary.
317 Output_data_got
<size
, big_endian
>*
318 got_section(Symbol_table
*, Layout
*);
320 // Create a PLT entry for a global symbol.
322 make_plt_entry(Symbol_table
*, Layout
*, Symbol
*);
324 // Create a GOT entry for the TLS module index.
326 got_mod_index_entry(Symbol_table
* symtab
, Layout
* layout
,
327 Sized_relobj_file
<size
, big_endian
>* object
);
329 // Return the gsym for "__tls_get_addr". Cache if not already
332 tls_get_addr_sym(Symbol_table
* symtab
)
334 if (!this->tls_get_addr_sym_
)
335 this->tls_get_addr_sym_
= symtab
->lookup("__tls_get_addr", NULL
);
336 gold_assert(this->tls_get_addr_sym_
);
337 return this->tls_get_addr_sym_
;
340 // Get the PLT section.
341 const Output_data_plt_sparc
<size
, big_endian
>*
344 gold_assert(this->plt_
!= NULL
);
348 // Get the dynamic reloc section, creating it if necessary.
350 rela_dyn_section(Layout
*);
352 // Copy a relocation against a global symbol.
354 copy_reloc(Symbol_table
* symtab
, Layout
* layout
,
355 Sized_relobj_file
<size
, big_endian
>* object
,
356 unsigned int shndx
, Output_section
* output_section
,
357 Symbol
* sym
, const elfcpp::Rela
<size
, big_endian
>& reloc
)
359 this->copy_relocs_
.copy_reloc(symtab
, layout
,
360 symtab
->get_sized_symbol
<size
>(sym
),
361 object
, shndx
, output_section
,
362 reloc
, this->rela_dyn_section(layout
));
365 // Information about this specific target which we pass to the
366 // general Target structure.
367 static Target::Target_info sparc_info
;
369 // The types of GOT entries needed for this platform.
370 // These values are exposed to the ABI in an incremental link.
371 // Do not renumber existing values without changing the version
372 // number of the .gnu_incremental_inputs section.
375 GOT_TYPE_STANDARD
= 0, // GOT entry for a regular symbol
376 GOT_TYPE_TLS_OFFSET
= 1, // GOT entry for TLS offset
377 GOT_TYPE_TLS_PAIR
= 2, // GOT entry for TLS module/offset pair
381 Output_data_got
<size
, big_endian
>* got_
;
383 Output_data_plt_sparc
<size
, big_endian
>* plt_
;
384 // The dynamic reloc section.
385 Reloc_section
* rela_dyn_
;
386 // Relocs saved to avoid a COPY reloc.
387 Copy_relocs
<elfcpp::SHT_RELA
, size
, big_endian
> copy_relocs_
;
388 // Space for variables copied with a COPY reloc.
389 Output_data_space
* dynbss_
;
390 // Offset of the GOT entry for the TLS module index;
391 unsigned int got_mod_index_offset_
;
392 // Cached pointer to __tls_get_addr symbol
393 Symbol
* tls_get_addr_sym_
;
397 Target::Target_info Target_sparc
<32, true>::sparc_info
=
400 true, // is_big_endian
401 elfcpp::EM_SPARC
, // machine_code
402 false, // has_make_symbol
403 false, // has_resolve
404 false, // has_code_fill
405 true, // is_default_stack_executable
406 false, // can_icf_inline_merge_sections
408 "/usr/lib/ld.so.1", // dynamic_linker
409 0x00010000, // default_text_segment_address
410 64 * 1024, // abi_pagesize (overridable by -z max-page-size)
411 8 * 1024, // common_pagesize (overridable by -z common-page-size)
412 elfcpp::SHN_UNDEF
, // small_common_shndx
413 elfcpp::SHN_UNDEF
, // large_common_shndx
414 0, // small_common_section_flags
415 0, // large_common_section_flags
416 NULL
, // attributes_section
417 NULL
// attributes_vendor
421 Target::Target_info Target_sparc
<64, true>::sparc_info
=
424 true, // is_big_endian
425 elfcpp::EM_SPARCV9
, // machine_code
426 false, // has_make_symbol
427 false, // has_resolve
428 false, // has_code_fill
429 true, // is_default_stack_executable
430 false, // can_icf_inline_merge_sections
432 "/usr/lib/sparcv9/ld.so.1", // dynamic_linker
433 0x100000, // default_text_segment_address
434 64 * 1024, // abi_pagesize (overridable by -z max-page-size)
435 8 * 1024, // common_pagesize (overridable by -z common-page-size)
436 elfcpp::SHN_UNDEF
, // small_common_shndx
437 elfcpp::SHN_UNDEF
, // large_common_shndx
438 0, // small_common_section_flags
439 0, // large_common_section_flags
440 NULL
, // attributes_section
441 NULL
// attributes_vendor
444 // We have to take care here, even when operating in little-endian
445 // mode, sparc instructions are still big endian.
446 template<int size
, bool big_endian
>
447 class Sparc_relocate_functions
450 // Do a simple relocation with the addend in the relocation.
451 template<int valsize
>
453 rela(unsigned char* view
,
454 unsigned int right_shift
,
455 typename
elfcpp::Elf_types
<valsize
>::Elf_Addr dst_mask
,
456 typename
elfcpp::Swap
<size
, big_endian
>::Valtype value
,
457 typename
elfcpp::Swap
<size
, big_endian
>::Valtype addend
)
459 typedef typename
elfcpp::Swap
<valsize
, big_endian
>::Valtype Valtype
;
460 Valtype
* wv
= reinterpret_cast<Valtype
*>(view
);
461 Valtype val
= elfcpp::Swap
<valsize
, big_endian
>::readval(wv
);
462 Valtype reloc
= ((value
+ addend
) >> right_shift
);
467 elfcpp::Swap
<valsize
, big_endian
>::writeval(wv
, val
| reloc
);
470 // Do a simple relocation using a symbol value with the addend in
472 template<int valsize
>
474 rela(unsigned char* view
,
475 unsigned int right_shift
,
476 typename
elfcpp::Elf_types
<valsize
>::Elf_Addr dst_mask
,
477 const Sized_relobj_file
<size
, big_endian
>* object
,
478 const Symbol_value
<size
>* psymval
,
479 typename
elfcpp::Swap
<valsize
, big_endian
>::Valtype addend
)
481 typedef typename
elfcpp::Swap
<valsize
, big_endian
>::Valtype Valtype
;
482 Valtype
* wv
= reinterpret_cast<Valtype
*>(view
);
483 Valtype val
= elfcpp::Swap
<valsize
, big_endian
>::readval(wv
);
484 Valtype reloc
= (psymval
->value(object
, addend
) >> right_shift
);
489 elfcpp::Swap
<valsize
, big_endian
>::writeval(wv
, val
| reloc
);
492 // Do a simple relocation using a symbol value with the addend in
493 // the relocation, unaligned.
494 template<int valsize
>
496 rela_ua(unsigned char* view
,
497 unsigned int right_shift
, elfcpp::Elf_Xword dst_mask
,
498 const Sized_relobj_file
<size
, big_endian
>* object
,
499 const Symbol_value
<size
>* psymval
,
500 typename
elfcpp::Swap
<size
, big_endian
>::Valtype addend
)
502 typedef typename
elfcpp::Swap_unaligned
<valsize
,
503 big_endian
>::Valtype Valtype
;
504 unsigned char* wv
= view
;
505 Valtype val
= elfcpp::Swap_unaligned
<valsize
, big_endian
>::readval(wv
);
506 Valtype reloc
= (psymval
->value(object
, addend
) >> right_shift
);
511 elfcpp::Swap_unaligned
<valsize
, big_endian
>::writeval(wv
, val
| reloc
);
514 // Do a simple PC relative relocation with a Symbol_value with the
515 // addend in the relocation.
516 template<int valsize
>
518 pcrela(unsigned char* view
,
519 unsigned int right_shift
,
520 typename
elfcpp::Elf_types
<valsize
>::Elf_Addr dst_mask
,
521 const Sized_relobj_file
<size
, big_endian
>* object
,
522 const Symbol_value
<size
>* psymval
,
523 typename
elfcpp::Swap
<size
, big_endian
>::Valtype addend
,
524 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
526 typedef typename
elfcpp::Swap
<valsize
, big_endian
>::Valtype Valtype
;
527 Valtype
* wv
= reinterpret_cast<Valtype
*>(view
);
528 Valtype val
= elfcpp::Swap
<valsize
, big_endian
>::readval(wv
);
529 Valtype reloc
= ((psymval
->value(object
, addend
) - address
)
535 elfcpp::Swap
<valsize
, big_endian
>::writeval(wv
, val
| reloc
);
538 template<int valsize
>
540 pcrela_unaligned(unsigned char* view
,
541 const Sized_relobj_file
<size
, big_endian
>* object
,
542 const Symbol_value
<size
>* psymval
,
543 typename
elfcpp::Swap
<size
, big_endian
>::Valtype addend
,
544 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
546 typedef typename
elfcpp::Swap_unaligned
<valsize
,
547 big_endian
>::Valtype Valtype
;
548 unsigned char* wv
= view
;
549 Valtype reloc
= (psymval
->value(object
, addend
) - address
);
551 elfcpp::Swap_unaligned
<valsize
, big_endian
>::writeval(wv
, reloc
);
554 typedef Sparc_relocate_functions
<size
, big_endian
> This
;
555 typedef Sparc_relocate_functions
<size
, true> This_insn
;
558 // R_SPARC_WDISP30: (Symbol + Addend - Address) >> 2
560 wdisp30(unsigned char* view
,
561 const Sized_relobj_file
<size
, big_endian
>* object
,
562 const Symbol_value
<size
>* psymval
,
563 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
564 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
566 This_insn::template pcrela
<32>(view
, 2, 0x3fffffff, object
,
567 psymval
, addend
, address
);
570 // R_SPARC_WDISP22: (Symbol + Addend - Address) >> 2
572 wdisp22(unsigned char* view
,
573 const Sized_relobj_file
<size
, big_endian
>* object
,
574 const Symbol_value
<size
>* psymval
,
575 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
576 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
578 This_insn::template pcrela
<32>(view
, 2, 0x003fffff, object
,
579 psymval
, addend
, address
);
582 // R_SPARC_WDISP19: (Symbol + Addend - Address) >> 2
584 wdisp19(unsigned char* view
,
585 const Sized_relobj_file
<size
, big_endian
>* object
,
586 const Symbol_value
<size
>* psymval
,
587 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
588 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
590 This_insn::template pcrela
<32>(view
, 2, 0x0007ffff, object
,
591 psymval
, addend
, address
);
594 // R_SPARC_WDISP16: (Symbol + Addend - Address) >> 2
596 wdisp16(unsigned char* view
,
597 const Sized_relobj_file
<size
, big_endian
>* object
,
598 const Symbol_value
<size
>* psymval
,
599 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
600 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
602 typedef typename
elfcpp::Swap
<32, true>::Valtype Valtype
;
603 Valtype
* wv
= reinterpret_cast<Valtype
*>(view
);
604 Valtype val
= elfcpp::Swap
<32, true>::readval(wv
);
605 Valtype reloc
= ((psymval
->value(object
, addend
) - address
)
608 // The relocation value is split between the low 14 bits,
610 val
&= ~((0x3 << 20) | 0x3fff);
611 reloc
= (((reloc
& 0xc000) << (20 - 14))
612 | (reloc
& 0x3ffff));
614 elfcpp::Swap
<32, true>::writeval(wv
, val
| reloc
);
617 // R_SPARC_PC22: (Symbol + Addend - Address) >> 10
619 pc22(unsigned char* view
,
620 const Sized_relobj_file
<size
, big_endian
>* object
,
621 const Symbol_value
<size
>* psymval
,
622 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
623 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
625 This_insn::template pcrela
<32>(view
, 10, 0x003fffff, object
,
626 psymval
, addend
, address
);
629 // R_SPARC_PC10: (Symbol + Addend - Address) & 0x3ff
631 pc10(unsigned char* view
,
632 const Sized_relobj_file
<size
, big_endian
>* object
,
633 const Symbol_value
<size
>* psymval
,
634 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
635 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
637 This_insn::template pcrela
<32>(view
, 0, 0x000003ff, object
,
638 psymval
, addend
, address
);
641 // R_SPARC_HI22: (Symbol + Addend) >> 10
643 hi22(unsigned char* view
,
644 typename
elfcpp::Elf_types
<size
>::Elf_Addr value
,
645 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
647 This_insn::template rela
<32>(view
, 10, 0x003fffff, value
, addend
);
650 // R_SPARC_HI22: (Symbol + Addend) >> 10
652 hi22(unsigned char* view
,
653 const Sized_relobj_file
<size
, big_endian
>* object
,
654 const Symbol_value
<size
>* psymval
,
655 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
657 This_insn::template rela
<32>(view
, 10, 0x003fffff, object
, psymval
, addend
);
660 // R_SPARC_PCPLT22: (Symbol + Addend - Address) >> 10
662 pcplt22(unsigned char* view
,
663 const Sized_relobj_file
<size
, big_endian
>* object
,
664 const Symbol_value
<size
>* psymval
,
665 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
666 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
668 This_insn::template pcrela
<32>(view
, 10, 0x003fffff, object
,
669 psymval
, addend
, address
);
672 // R_SPARC_LO10: (Symbol + Addend) & 0x3ff
674 lo10(unsigned char* view
,
675 typename
elfcpp::Elf_types
<size
>::Elf_Addr value
,
676 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
678 This_insn::template rela
<32>(view
, 0, 0x000003ff, value
, addend
);
681 // R_SPARC_LO10: (Symbol + Addend) & 0x3ff
683 lo10(unsigned char* view
,
684 const Sized_relobj_file
<size
, big_endian
>* object
,
685 const Symbol_value
<size
>* psymval
,
686 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
688 This_insn::template rela
<32>(view
, 0, 0x000003ff, object
, psymval
, addend
);
691 // R_SPARC_LO10: (Symbol + Addend) & 0x3ff
693 lo10(unsigned char* view
,
694 const Sized_relobj_file
<size
, big_endian
>* object
,
695 const Symbol_value
<size
>* psymval
,
696 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
697 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
699 This_insn::template pcrela
<32>(view
, 0, 0x000003ff, object
,
700 psymval
, addend
, address
);
703 // R_SPARC_OLO10: ((Symbol + Addend) & 0x3ff) + Addend2
705 olo10(unsigned char* view
,
706 const Sized_relobj_file
<size
, big_endian
>* object
,
707 const Symbol_value
<size
>* psymval
,
708 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
709 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend2
)
711 typedef typename
elfcpp::Swap
<32, true>::Valtype Valtype
;
712 Valtype
* wv
= reinterpret_cast<Valtype
*>(view
);
713 Valtype val
= elfcpp::Swap
<32, true>::readval(wv
);
714 Valtype reloc
= psymval
->value(object
, addend
);
721 elfcpp::Swap
<32, true>::writeval(wv
, val
| reloc
);
724 // R_SPARC_22: (Symbol + Addend)
726 rela32_22(unsigned char* view
,
727 const Sized_relobj_file
<size
, big_endian
>* object
,
728 const Symbol_value
<size
>* psymval
,
729 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
731 This_insn::template rela
<32>(view
, 0, 0x003fffff, object
, psymval
, addend
);
734 // R_SPARC_13: (Symbol + Addend)
736 rela32_13(unsigned char* view
,
737 typename
elfcpp::Elf_types
<size
>::Elf_Addr value
,
738 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
740 This_insn::template rela
<32>(view
, 0, 0x00001fff, value
, addend
);
743 // R_SPARC_13: (Symbol + Addend)
745 rela32_13(unsigned char* view
,
746 const Sized_relobj_file
<size
, big_endian
>* object
,
747 const Symbol_value
<size
>* psymval
,
748 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
750 This_insn::template rela
<32>(view
, 0, 0x00001fff, object
, psymval
, addend
);
753 // R_SPARC_UA16: (Symbol + Addend)
755 ua16(unsigned char* view
,
756 const Sized_relobj_file
<size
, big_endian
>* object
,
757 const Symbol_value
<size
>* psymval
,
758 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
760 This::template rela_ua
<16>(view
, 0, 0xffff, object
, psymval
, addend
);
763 // R_SPARC_UA32: (Symbol + Addend)
765 ua32(unsigned char* view
,
766 const Sized_relobj_file
<size
, big_endian
>* object
,
767 const Symbol_value
<size
>* psymval
,
768 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
770 This::template rela_ua
<32>(view
, 0, 0xffffffff, object
, psymval
, addend
);
773 // R_SPARC_UA64: (Symbol + Addend)
775 ua64(unsigned char* view
,
776 const Sized_relobj_file
<size
, big_endian
>* object
,
777 const Symbol_value
<size
>* psymval
,
778 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
780 This::template rela_ua
<64>(view
, 0, ~(elfcpp::Elf_Xword
) 0,
781 object
, psymval
, addend
);
784 // R_SPARC_DISP8: (Symbol + Addend - Address)
786 disp8(unsigned char* view
,
787 const Sized_relobj_file
<size
, big_endian
>* object
,
788 const Symbol_value
<size
>* psymval
,
789 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
790 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
792 This::template pcrela_unaligned
<8>(view
, object
, psymval
,
796 // R_SPARC_DISP16: (Symbol + Addend - Address)
798 disp16(unsigned char* view
,
799 const Sized_relobj_file
<size
, big_endian
>* object
,
800 const Symbol_value
<size
>* psymval
,
801 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
802 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
804 This::template pcrela_unaligned
<16>(view
, object
, psymval
,
808 // R_SPARC_DISP32: (Symbol + Addend - Address)
810 disp32(unsigned char* view
,
811 const Sized_relobj_file
<size
, big_endian
>* object
,
812 const Symbol_value
<size
>* psymval
,
813 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
814 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
816 This::template pcrela_unaligned
<32>(view
, object
, psymval
,
820 // R_SPARC_DISP64: (Symbol + Addend - Address)
822 disp64(unsigned char* view
,
823 const Sized_relobj_file
<size
, big_endian
>* object
,
824 const Symbol_value
<size
>* psymval
,
825 elfcpp::Elf_Xword addend
,
826 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
828 This::template pcrela_unaligned
<64>(view
, object
, psymval
,
832 // R_SPARC_H44: (Symbol + Addend) >> 22
834 h44(unsigned char* view
,
835 const Sized_relobj_file
<size
, big_endian
>* object
,
836 const Symbol_value
<size
>* psymval
,
837 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
839 This_insn::template rela
<32>(view
, 22, 0x003fffff, object
, psymval
, addend
);
842 // R_SPARC_M44: ((Symbol + Addend) >> 12) & 0x3ff
844 m44(unsigned char* view
,
845 const Sized_relobj_file
<size
, big_endian
>* object
,
846 const Symbol_value
<size
>* psymval
,
847 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
849 This_insn::template rela
<32>(view
, 12, 0x000003ff, object
, psymval
, addend
);
852 // R_SPARC_L44: (Symbol + Addend) & 0xfff
854 l44(unsigned char* view
,
855 const Sized_relobj_file
<size
, big_endian
>* object
,
856 const Symbol_value
<size
>* psymval
,
857 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
859 This_insn::template rela
<32>(view
, 0, 0x00000fff, object
, psymval
, addend
);
862 // R_SPARC_HH22: (Symbol + Addend) >> 42
864 hh22(unsigned char* view
,
865 const Sized_relobj_file
<size
, big_endian
>* object
,
866 const Symbol_value
<size
>* psymval
,
867 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
869 This_insn::template rela
<32>(view
, 42, 0x003fffff, object
, psymval
, addend
);
872 // R_SPARC_PC_HH22: (Symbol + Addend - Address) >> 42
874 pc_hh22(unsigned char* view
,
875 const Sized_relobj_file
<size
, big_endian
>* object
,
876 const Symbol_value
<size
>* psymval
,
877 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
878 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
880 This_insn::template pcrela
<32>(view
, 42, 0x003fffff, object
,
881 psymval
, addend
, address
);
884 // R_SPARC_HM10: ((Symbol + Addend) >> 32) & 0x3ff
886 hm10(unsigned char* view
,
887 const Sized_relobj_file
<size
, big_endian
>* object
,
888 const Symbol_value
<size
>* psymval
,
889 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
891 This_insn::template rela
<32>(view
, 32, 0x000003ff, object
, psymval
, addend
);
894 // R_SPARC_PC_HM10: ((Symbol + Addend - Address) >> 32) & 0x3ff
896 pc_hm10(unsigned char* view
,
897 const Sized_relobj_file
<size
, big_endian
>* object
,
898 const Symbol_value
<size
>* psymval
,
899 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
,
900 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
)
902 This_insn::template pcrela
<32>(view
, 32, 0x000003ff, object
,
903 psymval
, addend
, address
);
906 // R_SPARC_11: (Symbol + Addend)
908 rela32_11(unsigned char* view
,
909 const Sized_relobj_file
<size
, big_endian
>* object
,
910 const Symbol_value
<size
>* psymval
,
911 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
913 This_insn::template rela
<32>(view
, 0, 0x000007ff, object
, psymval
, addend
);
916 // R_SPARC_10: (Symbol + Addend)
918 rela32_10(unsigned char* view
,
919 const Sized_relobj_file
<size
, big_endian
>* object
,
920 const Symbol_value
<size
>* psymval
,
921 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
923 This_insn::template rela
<32>(view
, 0, 0x000003ff, object
, psymval
, addend
);
926 // R_SPARC_7: (Symbol + Addend)
928 rela32_7(unsigned char* view
,
929 const Sized_relobj_file
<size
, big_endian
>* object
,
930 const Symbol_value
<size
>* psymval
,
931 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
933 This_insn::template rela
<32>(view
, 0, 0x0000007f, object
, psymval
, addend
);
936 // R_SPARC_6: (Symbol + Addend)
938 rela32_6(unsigned char* view
,
939 const Sized_relobj_file
<size
, big_endian
>* object
,
940 const Symbol_value
<size
>* psymval
,
941 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
943 This_insn::template rela
<32>(view
, 0, 0x0000003f, object
, psymval
, addend
);
946 // R_SPARC_5: (Symbol + Addend)
948 rela32_5(unsigned char* view
,
949 const Sized_relobj_file
<size
, big_endian
>* object
,
950 const Symbol_value
<size
>* psymval
,
951 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
953 This_insn::template rela
<32>(view
, 0, 0x0000001f, object
, psymval
, addend
);
956 // R_SPARC_TLS_LDO_HIX22: @dtpoff(Symbol + Addend) >> 10
958 ldo_hix22(unsigned char* view
,
959 typename
elfcpp::Elf_types
<size
>::Elf_Addr value
,
960 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
962 This_insn::hi22(view
, value
, addend
);
965 // R_SPARC_TLS_LDO_LOX10: @dtpoff(Symbol + Addend) & 0x3ff
967 ldo_lox10(unsigned char* view
,
968 typename
elfcpp::Elf_types
<size
>::Elf_Addr value
,
969 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
971 typedef typename
elfcpp::Swap
<32, true>::Valtype Valtype
;
972 Valtype
* wv
= reinterpret_cast<Valtype
*>(view
);
973 Valtype val
= elfcpp::Swap
<32, true>::readval(wv
);
974 Valtype reloc
= (value
+ addend
);
979 elfcpp::Swap
<32, true>::writeval(wv
, val
| reloc
);
982 // R_SPARC_TLS_LE_HIX22: (@tpoff(Symbol + Addend) ^ 0xffffffffffffffff) >> 10
984 hix22(unsigned char* view
,
985 typename
elfcpp::Elf_types
<size
>::Elf_Addr value
,
986 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
988 typedef typename
elfcpp::Swap
<32, true>::Valtype Valtype
;
989 Valtype
* wv
= reinterpret_cast<Valtype
*>(view
);
990 Valtype val
= elfcpp::Swap
<32, true>::readval(wv
);
991 Valtype reloc
= (value
+ addend
);
995 reloc
^= ~(Valtype
)0;
1000 elfcpp::Swap
<32, true>::writeval(wv
, val
| reloc
);
1003 // R_SPARC_HIX22: ((Symbol + Addend) ^ 0xffffffffffffffff) >> 10
1005 hix22(unsigned char* view
,
1006 const Sized_relobj_file
<size
, big_endian
>* object
,
1007 const Symbol_value
<size
>* psymval
,
1008 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
1010 typedef typename
elfcpp::Swap
<32, true>::Valtype Valtype
;
1011 Valtype
* wv
= reinterpret_cast<Valtype
*>(view
);
1012 Valtype val
= elfcpp::Swap
<32, true>::readval(wv
);
1013 Valtype reloc
= psymval
->value(object
, addend
);
1017 reloc
^= ~(Valtype
)0;
1022 elfcpp::Swap
<32, true>::writeval(wv
, val
| reloc
);
1026 // R_SPARC_TLS_LE_LOX10: (@tpoff(Symbol + Addend) & 0x3ff) | 0x1c00
1028 lox10(unsigned char* view
,
1029 typename
elfcpp::Elf_types
<size
>::Elf_Addr value
,
1030 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
1032 typedef typename
elfcpp::Swap
<32, true>::Valtype Valtype
;
1033 Valtype
* wv
= reinterpret_cast<Valtype
*>(view
);
1034 Valtype val
= elfcpp::Swap
<32, true>::readval(wv
);
1035 Valtype reloc
= (value
+ addend
);
1041 elfcpp::Swap
<32, true>::writeval(wv
, val
| reloc
);
1044 // R_SPARC_LOX10: ((Symbol + Addend) & 0x3ff) | 0x1c00
1046 lox10(unsigned char* view
,
1047 const Sized_relobj_file
<size
, big_endian
>* object
,
1048 const Symbol_value
<size
>* psymval
,
1049 typename
elfcpp::Elf_types
<size
>::Elf_Addr addend
)
1051 typedef typename
elfcpp::Swap
<32, true>::Valtype Valtype
;
1052 Valtype
* wv
= reinterpret_cast<Valtype
*>(view
);
1053 Valtype val
= elfcpp::Swap
<32, true>::readval(wv
);
1054 Valtype reloc
= psymval
->value(object
, addend
);
1060 elfcpp::Swap
<32, true>::writeval(wv
, val
| reloc
);
1064 // Get the GOT section, creating it if necessary.
1066 template<int size
, bool big_endian
>
1067 Output_data_got
<size
, big_endian
>*
1068 Target_sparc
<size
, big_endian
>::got_section(Symbol_table
* symtab
,
1071 if (this->got_
== NULL
)
1073 gold_assert(symtab
!= NULL
&& layout
!= NULL
);
1075 this->got_
= new Output_data_got
<size
, big_endian
>();
1077 layout
->add_output_section_data(".got", elfcpp::SHT_PROGBITS
,
1079 | elfcpp::SHF_WRITE
),
1080 this->got_
, ORDER_RELRO
, true);
1082 // Define _GLOBAL_OFFSET_TABLE_ at the start of the .got section.
1083 symtab
->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL
,
1084 Symbol_table::PREDEFINED
,
1086 0, 0, elfcpp::STT_OBJECT
,
1088 elfcpp::STV_HIDDEN
, 0,
1095 // Get the dynamic reloc section, creating it if necessary.
1097 template<int size
, bool big_endian
>
1098 typename Target_sparc
<size
, big_endian
>::Reloc_section
*
1099 Target_sparc
<size
, big_endian
>::rela_dyn_section(Layout
* layout
)
1101 if (this->rela_dyn_
== NULL
)
1103 gold_assert(layout
!= NULL
);
1104 this->rela_dyn_
= new Reloc_section(parameters
->options().combreloc());
1105 layout
->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA
,
1106 elfcpp::SHF_ALLOC
, this->rela_dyn_
,
1107 ORDER_DYNAMIC_RELOCS
, false);
1109 return this->rela_dyn_
;
1112 // A class to handle the PLT data.
1114 template<int size
, bool big_endian
>
1115 class Output_data_plt_sparc
: public Output_section_data
1118 typedef Output_data_reloc
<elfcpp::SHT_RELA
, true,
1119 size
, big_endian
> Reloc_section
;
1121 Output_data_plt_sparc(Layout
*);
1123 // Add an entry to the PLT.
1124 void add_entry(Symbol
* gsym
);
1126 // Return the .rela.plt section data.
1127 const Reloc_section
* rel_plt() const
1132 // Return the number of PLT entries.
1135 { return this->count_
; }
1137 // Return the offset of the first non-reserved PLT entry.
1139 first_plt_entry_offset()
1140 { return 4 * base_plt_entry_size
; }
1142 // Return the size of a PLT entry.
1144 get_plt_entry_size()
1145 { return base_plt_entry_size
; }
1148 void do_adjust_output_section(Output_section
* os
);
1150 // Write to a map file.
1152 do_print_to_mapfile(Mapfile
* mapfile
) const
1153 { mapfile
->print_output_data(this, _("** PLT")); }
1156 // The size of an entry in the PLT.
1157 static const int base_plt_entry_size
= (size
== 32 ? 12 : 32);
1159 static const unsigned int plt_entries_per_block
= 160;
1160 static const unsigned int plt_insn_chunk_size
= 24;
1161 static const unsigned int plt_pointer_chunk_size
= 8;
1162 static const unsigned int plt_block_size
=
1163 (plt_entries_per_block
1164 * (plt_insn_chunk_size
+ plt_pointer_chunk_size
));
1166 // Set the final size.
1168 set_final_data_size()
1170 unsigned int full_count
= this->count_
+ 4;
1171 unsigned int extra
= (size
== 32 ? 4 : 0);
1173 if (size
== 32 || full_count
< 32768)
1174 this->set_data_size((full_count
* base_plt_entry_size
) + extra
);
1177 unsigned int ext_cnt
= full_count
- 32768;
1179 this->set_data_size((32768 * base_plt_entry_size
)
1181 * (plt_insn_chunk_size
1182 + plt_pointer_chunk_size
)));
1186 // Write out the PLT data.
1188 do_write(Output_file
*);
1190 // The reloc section.
1191 Reloc_section
* rel_
;
1192 // The number of PLT entries.
1193 unsigned int count_
;
1196 // Define the constants as required by C++ standard.
1198 template<int size
, bool big_endian
>
1199 const int Output_data_plt_sparc
<size
, big_endian
>::base_plt_entry_size
;
1201 template<int size
, bool big_endian
>
1203 Output_data_plt_sparc
<size
, big_endian
>::plt_entries_per_block
;
1205 template<int size
, bool big_endian
>
1206 const unsigned int Output_data_plt_sparc
<size
, big_endian
>::plt_insn_chunk_size
;
1208 template<int size
, bool big_endian
>
1210 Output_data_plt_sparc
<size
, big_endian
>::plt_pointer_chunk_size
;
1212 template<int size
, bool big_endian
>
1213 const unsigned int Output_data_plt_sparc
<size
, big_endian
>::plt_block_size
;
1215 // Create the PLT section. The ordinary .got section is an argument,
1216 // since we need to refer to the start.
1218 template<int size
, bool big_endian
>
1219 Output_data_plt_sparc
<size
, big_endian
>::Output_data_plt_sparc(Layout
* layout
)
1220 : Output_section_data(size
== 32 ? 4 : 8), count_(0)
1222 this->rel_
= new Reloc_section(false);
1223 layout
->add_output_section_data(".rela.plt", elfcpp::SHT_RELA
,
1224 elfcpp::SHF_ALLOC
, this->rel_
,
1225 ORDER_DYNAMIC_PLT_RELOCS
, false);
1228 template<int size
, bool big_endian
>
1230 Output_data_plt_sparc
<size
, big_endian
>::do_adjust_output_section(Output_section
* os
)
1235 // Add an entry to the PLT.
1237 template<int size
, bool big_endian
>
1239 Output_data_plt_sparc
<size
, big_endian
>::add_entry(Symbol
* gsym
)
1241 gold_assert(!gsym
->has_plt_offset());
1243 unsigned int index
= this->count_
+ 4;
1244 section_offset_type plt_offset
;
1246 if (size
== 32 || index
< 32768)
1247 plt_offset
= index
* base_plt_entry_size
;
1250 unsigned int ext_index
= index
- 32768;
1252 plt_offset
= (32768 * base_plt_entry_size
)
1253 + ((ext_index
/ plt_entries_per_block
)
1255 + ((ext_index
% plt_entries_per_block
)
1256 * plt_insn_chunk_size
);
1259 gsym
->set_plt_offset(plt_offset
);
1263 // Every PLT entry needs a reloc.
1264 gsym
->set_needs_dynsym_entry();
1265 this->rel_
->add_global(gsym
, elfcpp::R_SPARC_JMP_SLOT
, this,
1268 // Note that we don't need to save the symbol. The contents of the
1269 // PLT are independent of which symbols are used. The symbols only
1270 // appear in the relocations.
1273 static const unsigned int sparc_nop
= 0x01000000;
1274 static const unsigned int sparc_sethi_g1
= 0x03000000;
1275 static const unsigned int sparc_branch_always
= 0x30800000;
1276 static const unsigned int sparc_branch_always_pt
= 0x30680000;
1277 static const unsigned int sparc_mov
= 0x80100000;
1278 static const unsigned int sparc_mov_g0_o0
= 0x90100000;
1279 static const unsigned int sparc_mov_o7_g5
= 0x8a10000f;
1280 static const unsigned int sparc_call_plus_8
= 0x40000002;
1281 static const unsigned int sparc_ldx_o7_imm_g1
= 0xc25be000;
1282 static const unsigned int sparc_jmpl_o7_g1_g1
= 0x83c3c001;
1283 static const unsigned int sparc_mov_g5_o7
= 0x9e100005;
1285 // Write out the PLT.
1287 template<int size
, bool big_endian
>
1289 Output_data_plt_sparc
<size
, big_endian
>::do_write(Output_file
* of
)
1291 const off_t offset
= this->offset();
1292 const section_size_type oview_size
=
1293 convert_to_section_size_type(this->data_size());
1294 unsigned char* const oview
= of
->get_output_view(offset
, oview_size
);
1295 unsigned char* pov
= oview
;
1297 memset(pov
, 0, base_plt_entry_size
* 4);
1298 pov
+= base_plt_entry_size
* 4;
1300 unsigned int plt_offset
= base_plt_entry_size
* 4;
1301 const unsigned int count
= this->count_
;
1307 limit
= (count
> 32768 ? 32768 : count
);
1309 for (unsigned int i
= 0; i
< limit
; ++i
)
1311 elfcpp::Swap
<32, true>::writeval(pov
+ 0x00,
1312 sparc_sethi_g1
+ plt_offset
);
1313 elfcpp::Swap
<32, true>::writeval(pov
+ 0x04,
1314 sparc_branch_always_pt
+
1315 (((base_plt_entry_size
-
1316 (plt_offset
+ 4)) >> 2) &
1318 elfcpp::Swap
<32, true>::writeval(pov
+ 0x08, sparc_nop
);
1319 elfcpp::Swap
<32, true>::writeval(pov
+ 0x0c, sparc_nop
);
1320 elfcpp::Swap
<32, true>::writeval(pov
+ 0x10, sparc_nop
);
1321 elfcpp::Swap
<32, true>::writeval(pov
+ 0x14, sparc_nop
);
1322 elfcpp::Swap
<32, true>::writeval(pov
+ 0x18, sparc_nop
);
1323 elfcpp::Swap
<32, true>::writeval(pov
+ 0x1c, sparc_nop
);
1325 pov
+= base_plt_entry_size
;
1326 plt_offset
+= base_plt_entry_size
;
1331 unsigned int ext_cnt
= count
- 32768;
1332 unsigned int blks
= ext_cnt
/ plt_entries_per_block
;
1334 for (unsigned int i
= 0; i
< blks
; ++i
)
1336 unsigned int data_off
= (plt_entries_per_block
1337 * plt_insn_chunk_size
) - 4;
1339 for (unsigned int j
= 0; j
< plt_entries_per_block
; ++j
)
1341 elfcpp::Swap
<32, true>::writeval(pov
+ 0x00,
1343 elfcpp::Swap
<32, true>::writeval(pov
+ 0x04,
1345 elfcpp::Swap
<32, true>::writeval(pov
+ 0x08,
1347 elfcpp::Swap
<32, true>::writeval(pov
+ 0x0c,
1348 sparc_ldx_o7_imm_g1
+
1349 (data_off
& 0x1fff));
1350 elfcpp::Swap
<32, true>::writeval(pov
+ 0x10,
1351 sparc_jmpl_o7_g1_g1
);
1352 elfcpp::Swap
<32, true>::writeval(pov
+ 0x14,
1355 elfcpp::Swap
<64, big_endian
>::writeval(
1356 pov
+ 0x4 + data_off
,
1357 (elfcpp::Elf_Xword
) (oview
- (pov
+ 0x04)));
1359 pov
+= plt_insn_chunk_size
;
1364 unsigned int sub_blk_cnt
= ext_cnt
% plt_entries_per_block
;
1365 for (unsigned int i
= 0; i
< sub_blk_cnt
; ++i
)
1367 unsigned int data_off
= (sub_blk_cnt
1368 * plt_insn_chunk_size
) - 4;
1370 for (unsigned int j
= 0; j
< plt_entries_per_block
; ++j
)
1372 elfcpp::Swap
<32, true>::writeval(pov
+ 0x00,
1374 elfcpp::Swap
<32, true>::writeval(pov
+ 0x04,
1376 elfcpp::Swap
<32, true>::writeval(pov
+ 0x08,
1378 elfcpp::Swap
<32, true>::writeval(pov
+ 0x0c,
1379 sparc_ldx_o7_imm_g1
+
1380 (data_off
& 0x1fff));
1381 elfcpp::Swap
<32, true>::writeval(pov
+ 0x10,
1382 sparc_jmpl_o7_g1_g1
);
1383 elfcpp::Swap
<32, true>::writeval(pov
+ 0x14,
1386 elfcpp::Swap
<64, big_endian
>::writeval(
1387 pov
+ 0x4 + data_off
,
1388 (elfcpp::Elf_Xword
) (oview
- (pov
+ 0x04)));
1390 pov
+= plt_insn_chunk_size
;
1398 for (unsigned int i
= 0; i
< count
; ++i
)
1400 elfcpp::Swap
<32, true>::writeval(pov
+ 0x00,
1401 sparc_sethi_g1
+ plt_offset
);
1402 elfcpp::Swap
<32, true>::writeval(pov
+ 0x04,
1403 sparc_branch_always
+
1404 (((- (plt_offset
+ 4)) >> 2) &
1406 elfcpp::Swap
<32, true>::writeval(pov
+ 0x08, sparc_nop
);
1408 pov
+= base_plt_entry_size
;
1409 plt_offset
+= base_plt_entry_size
;
1412 elfcpp::Swap
<32, true>::writeval(pov
, sparc_nop
);
1416 gold_assert(static_cast<section_size_type
>(pov
- oview
) == oview_size
);
1418 of
->write_output_view(offset
, oview_size
, oview
);
1421 // Create a PLT entry for a global symbol.
1423 template<int size
, bool big_endian
>
1425 Target_sparc
<size
, big_endian
>::make_plt_entry(Symbol_table
* symtab
,
1429 if (gsym
->has_plt_offset())
1432 if (this->plt_
== NULL
)
1434 // Create the GOT sections first.
1435 this->got_section(symtab
, layout
);
1437 // Ensure that .rela.dyn always appears before .rela.plt This is
1438 // necessary due to how, on Sparc and some other targets, .rela.dyn
1439 // needs to include .rela.plt in it's range.
1440 this->rela_dyn_section(layout
);
1442 this->plt_
= new Output_data_plt_sparc
<size
, big_endian
>(layout
);
1443 layout
->add_output_section_data(".plt", elfcpp::SHT_PROGBITS
,
1445 | elfcpp::SHF_EXECINSTR
1446 | elfcpp::SHF_WRITE
),
1447 this->plt_
, ORDER_PLT
, false);
1449 // Define _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section.
1450 symtab
->define_in_output_data("_PROCEDURE_LINKAGE_TABLE_", NULL
,
1451 Symbol_table::PREDEFINED
,
1453 0, 0, elfcpp::STT_OBJECT
,
1455 elfcpp::STV_HIDDEN
, 0,
1459 this->plt_
->add_entry(gsym
);
1462 // Return the number of entries in the PLT.
1464 template<int size
, bool big_endian
>
1466 Target_sparc
<size
, big_endian
>::plt_entry_count() const
1468 if (this->plt_
== NULL
)
1470 return this->plt_
->entry_count();
1473 // Return the offset of the first non-reserved PLT entry.
1475 template<int size
, bool big_endian
>
1477 Target_sparc
<size
, big_endian
>::first_plt_entry_offset() const
1479 return Output_data_plt_sparc
<size
, big_endian
>::first_plt_entry_offset();
1482 // Return the size of each PLT entry.
1484 template<int size
, bool big_endian
>
1486 Target_sparc
<size
, big_endian
>::plt_entry_size() const
1488 return Output_data_plt_sparc
<size
, big_endian
>::get_plt_entry_size();
1491 // Create a GOT entry for the TLS module index.
1493 template<int size
, bool big_endian
>
1495 Target_sparc
<size
, big_endian
>::got_mod_index_entry(
1496 Symbol_table
* symtab
,
1498 Sized_relobj_file
<size
, big_endian
>* object
)
1500 if (this->got_mod_index_offset_
== -1U)
1502 gold_assert(symtab
!= NULL
&& layout
!= NULL
&& object
!= NULL
);
1503 Reloc_section
* rela_dyn
= this->rela_dyn_section(layout
);
1504 Output_data_got
<size
, big_endian
>* got
;
1505 unsigned int got_offset
;
1507 got
= this->got_section(symtab
, layout
);
1508 got_offset
= got
->add_constant(0);
1509 rela_dyn
->add_local(object
, 0,
1511 elfcpp::R_SPARC_TLS_DTPMOD64
:
1512 elfcpp::R_SPARC_TLS_DTPMOD32
), got
,
1514 got
->add_constant(0);
1515 this->got_mod_index_offset_
= got_offset
;
1517 return this->got_mod_index_offset_
;
1520 // Optimize the TLS relocation type based on what we know about the
1521 // symbol. IS_FINAL is true if the final address of this symbol is
1522 // known at link time.
1524 static tls::Tls_optimization
1525 optimize_tls_reloc(bool is_final
, int r_type
)
1527 // If we are generating a shared library, then we can't do anything
1529 if (parameters
->options().shared())
1530 return tls::TLSOPT_NONE
;
1534 case elfcpp::R_SPARC_TLS_GD_HI22
: // Global-dynamic
1535 case elfcpp::R_SPARC_TLS_GD_LO10
:
1536 case elfcpp::R_SPARC_TLS_GD_ADD
:
1537 case elfcpp::R_SPARC_TLS_GD_CALL
:
1538 // These are General-Dynamic which permits fully general TLS
1539 // access. Since we know that we are generating an executable,
1540 // we can convert this to Initial-Exec. If we also know that
1541 // this is a local symbol, we can further switch to Local-Exec.
1543 return tls::TLSOPT_TO_LE
;
1544 return tls::TLSOPT_TO_IE
;
1546 case elfcpp::R_SPARC_TLS_LDM_HI22
: // Local-dynamic
1547 case elfcpp::R_SPARC_TLS_LDM_LO10
:
1548 case elfcpp::R_SPARC_TLS_LDM_ADD
:
1549 case elfcpp::R_SPARC_TLS_LDM_CALL
:
1550 // This is Local-Dynamic, which refers to a local symbol in the
1551 // dynamic TLS block. Since we know that we generating an
1552 // executable, we can switch to Local-Exec.
1553 return tls::TLSOPT_TO_LE
;
1555 case elfcpp::R_SPARC_TLS_LDO_HIX22
: // Alternate local-dynamic
1556 case elfcpp::R_SPARC_TLS_LDO_LOX10
:
1557 case elfcpp::R_SPARC_TLS_LDO_ADD
:
1558 // Another type of Local-Dynamic relocation.
1559 return tls::TLSOPT_TO_LE
;
1561 case elfcpp::R_SPARC_TLS_IE_HI22
: // Initial-exec
1562 case elfcpp::R_SPARC_TLS_IE_LO10
:
1563 case elfcpp::R_SPARC_TLS_IE_LD
:
1564 case elfcpp::R_SPARC_TLS_IE_LDX
:
1565 case elfcpp::R_SPARC_TLS_IE_ADD
:
1566 // These are Initial-Exec relocs which get the thread offset
1567 // from the GOT. If we know that we are linking against the
1568 // local symbol, we can switch to Local-Exec, which links the
1569 // thread offset into the instruction.
1571 return tls::TLSOPT_TO_LE
;
1572 return tls::TLSOPT_NONE
;
1574 case elfcpp::R_SPARC_TLS_LE_HIX22
: // Local-exec
1575 case elfcpp::R_SPARC_TLS_LE_LOX10
:
1576 // When we already have Local-Exec, there is nothing further we
1578 return tls::TLSOPT_NONE
;
1585 // Get the Reference_flags for a particular relocation.
1587 template<int size
, bool big_endian
>
1589 Target_sparc
<size
, big_endian
>::Scan::get_reference_flags(unsigned int r_type
)
1594 case elfcpp::R_SPARC_NONE
:
1595 case elfcpp::R_SPARC_REGISTER
:
1596 case elfcpp::R_SPARC_GNU_VTINHERIT
:
1597 case elfcpp::R_SPARC_GNU_VTENTRY
:
1598 // No symbol reference.
1601 case elfcpp::R_SPARC_UA64
:
1602 case elfcpp::R_SPARC_64
:
1603 case elfcpp::R_SPARC_HIX22
:
1604 case elfcpp::R_SPARC_LOX10
:
1605 case elfcpp::R_SPARC_H44
:
1606 case elfcpp::R_SPARC_M44
:
1607 case elfcpp::R_SPARC_L44
:
1608 case elfcpp::R_SPARC_HH22
:
1609 case elfcpp::R_SPARC_HM10
:
1610 case elfcpp::R_SPARC_LM22
:
1611 case elfcpp::R_SPARC_HI22
:
1612 case elfcpp::R_SPARC_LO10
:
1613 case elfcpp::R_SPARC_OLO10
:
1614 case elfcpp::R_SPARC_UA32
:
1615 case elfcpp::R_SPARC_32
:
1616 case elfcpp::R_SPARC_UA16
:
1617 case elfcpp::R_SPARC_16
:
1618 case elfcpp::R_SPARC_11
:
1619 case elfcpp::R_SPARC_10
:
1620 case elfcpp::R_SPARC_8
:
1621 case elfcpp::R_SPARC_7
:
1622 case elfcpp::R_SPARC_6
:
1623 case elfcpp::R_SPARC_5
:
1624 return Symbol::ABSOLUTE_REF
;
1626 case elfcpp::R_SPARC_DISP8
:
1627 case elfcpp::R_SPARC_DISP16
:
1628 case elfcpp::R_SPARC_DISP32
:
1629 case elfcpp::R_SPARC_DISP64
:
1630 case elfcpp::R_SPARC_PC_HH22
:
1631 case elfcpp::R_SPARC_PC_HM10
:
1632 case elfcpp::R_SPARC_PC_LM22
:
1633 case elfcpp::R_SPARC_PC10
:
1634 case elfcpp::R_SPARC_PC22
:
1635 case elfcpp::R_SPARC_WDISP30
:
1636 case elfcpp::R_SPARC_WDISP22
:
1637 case elfcpp::R_SPARC_WDISP19
:
1638 case elfcpp::R_SPARC_WDISP16
:
1639 return Symbol::RELATIVE_REF
;
1641 case elfcpp::R_SPARC_PLT64
:
1642 case elfcpp::R_SPARC_PLT32
:
1643 case elfcpp::R_SPARC_HIPLT22
:
1644 case elfcpp::R_SPARC_LOPLT10
:
1645 case elfcpp::R_SPARC_PCPLT10
:
1646 return Symbol::FUNCTION_CALL
| Symbol::ABSOLUTE_REF
;
1648 case elfcpp::R_SPARC_PCPLT32
:
1649 case elfcpp::R_SPARC_PCPLT22
:
1650 case elfcpp::R_SPARC_WPLT30
:
1651 return Symbol::FUNCTION_CALL
| Symbol::RELATIVE_REF
;
1653 case elfcpp::R_SPARC_GOTDATA_OP
:
1654 case elfcpp::R_SPARC_GOTDATA_OP_HIX22
:
1655 case elfcpp::R_SPARC_GOTDATA_OP_LOX10
:
1656 case elfcpp::R_SPARC_GOT10
:
1657 case elfcpp::R_SPARC_GOT13
:
1658 case elfcpp::R_SPARC_GOT22
:
1660 return Symbol::ABSOLUTE_REF
;
1662 case elfcpp::R_SPARC_TLS_GD_HI22
: // Global-dynamic
1663 case elfcpp::R_SPARC_TLS_GD_LO10
:
1664 case elfcpp::R_SPARC_TLS_GD_ADD
:
1665 case elfcpp::R_SPARC_TLS_GD_CALL
:
1666 case elfcpp::R_SPARC_TLS_LDM_HI22
: // Local-dynamic
1667 case elfcpp::R_SPARC_TLS_LDM_LO10
:
1668 case elfcpp::R_SPARC_TLS_LDM_ADD
:
1669 case elfcpp::R_SPARC_TLS_LDM_CALL
:
1670 case elfcpp::R_SPARC_TLS_LDO_HIX22
: // Alternate local-dynamic
1671 case elfcpp::R_SPARC_TLS_LDO_LOX10
:
1672 case elfcpp::R_SPARC_TLS_LDO_ADD
:
1673 case elfcpp::R_SPARC_TLS_LE_HIX22
:
1674 case elfcpp::R_SPARC_TLS_LE_LOX10
:
1675 case elfcpp::R_SPARC_TLS_IE_HI22
: // Initial-exec
1676 case elfcpp::R_SPARC_TLS_IE_LO10
:
1677 case elfcpp::R_SPARC_TLS_IE_LD
:
1678 case elfcpp::R_SPARC_TLS_IE_LDX
:
1679 case elfcpp::R_SPARC_TLS_IE_ADD
:
1680 return Symbol::TLS_REF
;
1682 case elfcpp::R_SPARC_COPY
:
1683 case elfcpp::R_SPARC_GLOB_DAT
:
1684 case elfcpp::R_SPARC_JMP_SLOT
:
1685 case elfcpp::R_SPARC_RELATIVE
:
1686 case elfcpp::R_SPARC_TLS_DTPMOD64
:
1687 case elfcpp::R_SPARC_TLS_DTPMOD32
:
1688 case elfcpp::R_SPARC_TLS_DTPOFF64
:
1689 case elfcpp::R_SPARC_TLS_DTPOFF32
:
1690 case elfcpp::R_SPARC_TLS_TPOFF64
:
1691 case elfcpp::R_SPARC_TLS_TPOFF32
:
1693 // Not expected. We will give an error later.
1698 // Generate a PLT entry slot for a call to __tls_get_addr
1699 template<int size
, bool big_endian
>
1701 Target_sparc
<size
, big_endian
>::Scan::generate_tls_call(Symbol_table
* symtab
,
1703 Target_sparc
<size
, big_endian
>* target
)
1705 Symbol
* gsym
= target
->tls_get_addr_sym(symtab
);
1707 target
->make_plt_entry(symtab
, layout
, gsym
);
1710 // Report an unsupported relocation against a local symbol.
1712 template<int size
, bool big_endian
>
1714 Target_sparc
<size
, big_endian
>::Scan::unsupported_reloc_local(
1715 Sized_relobj_file
<size
, big_endian
>* object
,
1716 unsigned int r_type
)
1718 gold_error(_("%s: unsupported reloc %u against local symbol"),
1719 object
->name().c_str(), r_type
);
1722 // We are about to emit a dynamic relocation of type R_TYPE. If the
1723 // dynamic linker does not support it, issue an error.
1725 template<int size
, bool big_endian
>
1727 Target_sparc
<size
, big_endian
>::Scan::check_non_pic(Relobj
* object
, unsigned int r_type
)
1729 gold_assert(r_type
!= elfcpp::R_SPARC_NONE
);
1735 // These are the relocation types supported by glibc for sparc 64-bit.
1736 case elfcpp::R_SPARC_RELATIVE
:
1737 case elfcpp::R_SPARC_COPY
:
1738 case elfcpp::R_SPARC_64
:
1739 case elfcpp::R_SPARC_GLOB_DAT
:
1740 case elfcpp::R_SPARC_JMP_SLOT
:
1741 case elfcpp::R_SPARC_TLS_DTPMOD64
:
1742 case elfcpp::R_SPARC_TLS_DTPOFF64
:
1743 case elfcpp::R_SPARC_TLS_TPOFF64
:
1744 case elfcpp::R_SPARC_TLS_LE_HIX22
:
1745 case elfcpp::R_SPARC_TLS_LE_LOX10
:
1746 case elfcpp::R_SPARC_8
:
1747 case elfcpp::R_SPARC_16
:
1748 case elfcpp::R_SPARC_DISP8
:
1749 case elfcpp::R_SPARC_DISP16
:
1750 case elfcpp::R_SPARC_DISP32
:
1751 case elfcpp::R_SPARC_WDISP30
:
1752 case elfcpp::R_SPARC_LO10
:
1753 case elfcpp::R_SPARC_HI22
:
1754 case elfcpp::R_SPARC_OLO10
:
1755 case elfcpp::R_SPARC_H44
:
1756 case elfcpp::R_SPARC_M44
:
1757 case elfcpp::R_SPARC_L44
:
1758 case elfcpp::R_SPARC_HH22
:
1759 case elfcpp::R_SPARC_HM10
:
1760 case elfcpp::R_SPARC_LM22
:
1761 case elfcpp::R_SPARC_UA16
:
1762 case elfcpp::R_SPARC_UA32
:
1763 case elfcpp::R_SPARC_UA64
:
1774 // These are the relocation types supported by glibc for sparc 32-bit.
1775 case elfcpp::R_SPARC_RELATIVE
:
1776 case elfcpp::R_SPARC_COPY
:
1777 case elfcpp::R_SPARC_GLOB_DAT
:
1778 case elfcpp::R_SPARC_32
:
1779 case elfcpp::R_SPARC_JMP_SLOT
:
1780 case elfcpp::R_SPARC_TLS_DTPMOD32
:
1781 case elfcpp::R_SPARC_TLS_DTPOFF32
:
1782 case elfcpp::R_SPARC_TLS_TPOFF32
:
1783 case elfcpp::R_SPARC_TLS_LE_HIX22
:
1784 case elfcpp::R_SPARC_TLS_LE_LOX10
:
1785 case elfcpp::R_SPARC_8
:
1786 case elfcpp::R_SPARC_16
:
1787 case elfcpp::R_SPARC_DISP8
:
1788 case elfcpp::R_SPARC_DISP16
:
1789 case elfcpp::R_SPARC_DISP32
:
1790 case elfcpp::R_SPARC_LO10
:
1791 case elfcpp::R_SPARC_WDISP30
:
1792 case elfcpp::R_SPARC_HI22
:
1793 case elfcpp::R_SPARC_UA16
:
1794 case elfcpp::R_SPARC_UA32
:
1802 // This prevents us from issuing more than one error per reloc
1803 // section. But we can still wind up issuing more than one
1804 // error per object file.
1805 if (this->issued_non_pic_error_
)
1807 gold_assert(parameters
->options().output_is_position_independent());
1808 object
->error(_("requires unsupported dynamic reloc; "
1809 "recompile with -fPIC"));
1810 this->issued_non_pic_error_
= true;
1814 // Scan a relocation for a local symbol.
1816 template<int size
, bool big_endian
>
1818 Target_sparc
<size
, big_endian
>::Scan::local(
1819 Symbol_table
* symtab
,
1821 Target_sparc
<size
, big_endian
>* target
,
1822 Sized_relobj_file
<size
, big_endian
>* object
,
1823 unsigned int data_shndx
,
1824 Output_section
* output_section
,
1825 const elfcpp::Rela
<size
, big_endian
>& reloc
,
1826 unsigned int r_type
,
1827 const elfcpp::Sym
<size
, big_endian
>& lsym
)
1829 unsigned int orig_r_type
= r_type
;
1834 case elfcpp::R_SPARC_NONE
:
1835 case elfcpp::R_SPARC_REGISTER
:
1836 case elfcpp::R_SPARC_GNU_VTINHERIT
:
1837 case elfcpp::R_SPARC_GNU_VTENTRY
:
1840 case elfcpp::R_SPARC_64
:
1841 case elfcpp::R_SPARC_32
:
1842 // If building a shared library (or a position-independent
1843 // executable), we need to create a dynamic relocation for
1844 // this location. The relocation applied at link time will
1845 // apply the link-time value, so we flag the location with
1846 // an R_SPARC_RELATIVE relocation so the dynamic loader can
1847 // relocate it easily.
1848 if (parameters
->options().output_is_position_independent())
1850 Reloc_section
* rela_dyn
= target
->rela_dyn_section(layout
);
1851 unsigned int r_sym
= elfcpp::elf_r_sym
<size
>(reloc
.get_r_info());
1852 rela_dyn
->add_local_relative(object
, r_sym
, elfcpp::R_SPARC_RELATIVE
,
1853 output_section
, data_shndx
,
1854 reloc
.get_r_offset(),
1855 reloc
.get_r_addend());
1859 case elfcpp::R_SPARC_HIX22
:
1860 case elfcpp::R_SPARC_LOX10
:
1861 case elfcpp::R_SPARC_H44
:
1862 case elfcpp::R_SPARC_M44
:
1863 case elfcpp::R_SPARC_L44
:
1864 case elfcpp::R_SPARC_HH22
:
1865 case elfcpp::R_SPARC_HM10
:
1866 case elfcpp::R_SPARC_LM22
:
1867 case elfcpp::R_SPARC_UA64
:
1868 case elfcpp::R_SPARC_UA32
:
1869 case elfcpp::R_SPARC_UA16
:
1870 case elfcpp::R_SPARC_HI22
:
1871 case elfcpp::R_SPARC_LO10
:
1872 case elfcpp::R_SPARC_OLO10
:
1873 case elfcpp::R_SPARC_16
:
1874 case elfcpp::R_SPARC_11
:
1875 case elfcpp::R_SPARC_10
:
1876 case elfcpp::R_SPARC_8
:
1877 case elfcpp::R_SPARC_7
:
1878 case elfcpp::R_SPARC_6
:
1879 case elfcpp::R_SPARC_5
:
1880 // If building a shared library (or a position-independent
1881 // executable), we need to create a dynamic relocation for
1883 if (parameters
->options().output_is_position_independent())
1885 Reloc_section
* rela_dyn
= target
->rela_dyn_section(layout
);
1886 unsigned int r_sym
= elfcpp::elf_r_sym
<size
>(reloc
.get_r_info());
1888 check_non_pic(object
, r_type
);
1889 if (lsym
.get_st_type() != elfcpp::STT_SECTION
)
1891 rela_dyn
->add_local(object
, r_sym
, orig_r_type
, output_section
,
1892 data_shndx
, reloc
.get_r_offset(),
1893 reloc
.get_r_addend());
1897 gold_assert(lsym
.get_st_value() == 0);
1898 rela_dyn
->add_symbolless_local_addend(object
, r_sym
, orig_r_type
,
1899 output_section
, data_shndx
,
1900 reloc
.get_r_offset(),
1901 reloc
.get_r_addend());
1906 case elfcpp::R_SPARC_WDISP30
:
1907 case elfcpp::R_SPARC_WPLT30
:
1908 case elfcpp::R_SPARC_WDISP22
:
1909 case elfcpp::R_SPARC_WDISP19
:
1910 case elfcpp::R_SPARC_WDISP16
:
1911 case elfcpp::R_SPARC_DISP8
:
1912 case elfcpp::R_SPARC_DISP16
:
1913 case elfcpp::R_SPARC_DISP32
:
1914 case elfcpp::R_SPARC_DISP64
:
1915 case elfcpp::R_SPARC_PC10
:
1916 case elfcpp::R_SPARC_PC22
:
1919 case elfcpp::R_SPARC_GOTDATA_OP
:
1920 case elfcpp::R_SPARC_GOTDATA_OP_HIX22
:
1921 case elfcpp::R_SPARC_GOTDATA_OP_LOX10
:
1922 case elfcpp::R_SPARC_GOT10
:
1923 case elfcpp::R_SPARC_GOT13
:
1924 case elfcpp::R_SPARC_GOT22
:
1926 // The symbol requires a GOT entry.
1927 Output_data_got
<size
, big_endian
>* got
;
1930 got
= target
->got_section(symtab
, layout
);
1931 r_sym
= elfcpp::elf_r_sym
<size
>(reloc
.get_r_info());
1933 // If we are generating a shared object, we need to add a
1934 // dynamic relocation for this symbol's GOT entry.
1935 if (parameters
->options().output_is_position_independent())
1937 if (!object
->local_has_got_offset(r_sym
, GOT_TYPE_STANDARD
))
1939 Reloc_section
* rela_dyn
= target
->rela_dyn_section(layout
);
1942 off
= got
->add_constant(0);
1943 object
->set_local_got_offset(r_sym
, GOT_TYPE_STANDARD
, off
);
1944 rela_dyn
->add_local_relative(object
, r_sym
,
1945 elfcpp::R_SPARC_RELATIVE
,
1950 got
->add_local(object
, r_sym
, GOT_TYPE_STANDARD
);
1954 // These are initial TLS relocs, which are expected when
1956 case elfcpp::R_SPARC_TLS_GD_HI22
: // Global-dynamic
1957 case elfcpp::R_SPARC_TLS_GD_LO10
:
1958 case elfcpp::R_SPARC_TLS_GD_ADD
:
1959 case elfcpp::R_SPARC_TLS_GD_CALL
:
1960 case elfcpp::R_SPARC_TLS_LDM_HI22
: // Local-dynamic
1961 case elfcpp::R_SPARC_TLS_LDM_LO10
:
1962 case elfcpp::R_SPARC_TLS_LDM_ADD
:
1963 case elfcpp::R_SPARC_TLS_LDM_CALL
:
1964 case elfcpp::R_SPARC_TLS_LDO_HIX22
: // Alternate local-dynamic
1965 case elfcpp::R_SPARC_TLS_LDO_LOX10
:
1966 case elfcpp::R_SPARC_TLS_LDO_ADD
:
1967 case elfcpp::R_SPARC_TLS_IE_HI22
: // Initial-exec
1968 case elfcpp::R_SPARC_TLS_IE_LO10
:
1969 case elfcpp::R_SPARC_TLS_IE_LD
:
1970 case elfcpp::R_SPARC_TLS_IE_LDX
:
1971 case elfcpp::R_SPARC_TLS_IE_ADD
:
1972 case elfcpp::R_SPARC_TLS_LE_HIX22
: // Local-exec
1973 case elfcpp::R_SPARC_TLS_LE_LOX10
:
1975 bool output_is_shared
= parameters
->options().shared();
1976 const tls::Tls_optimization optimized_type
1977 = optimize_tls_reloc(!output_is_shared
, r_type
);
1980 case elfcpp::R_SPARC_TLS_GD_HI22
: // Global-dynamic
1981 case elfcpp::R_SPARC_TLS_GD_LO10
:
1982 case elfcpp::R_SPARC_TLS_GD_ADD
:
1983 case elfcpp::R_SPARC_TLS_GD_CALL
:
1984 if (optimized_type
== tls::TLSOPT_NONE
)
1986 // Create a pair of GOT entries for the module index and
1987 // dtv-relative offset.
1988 Output_data_got
<size
, big_endian
>* got
1989 = target
->got_section(symtab
, layout
);
1990 unsigned int r_sym
= elfcpp::elf_r_sym
<size
>(reloc
.get_r_info());
1991 unsigned int shndx
= lsym
.get_st_shndx();
1993 shndx
= object
->adjust_sym_shndx(r_sym
, shndx
, &is_ordinary
);
1995 object
->error(_("local symbol %u has bad shndx %u"),
1998 got
->add_local_pair_with_rela(object
, r_sym
,
1999 lsym
.get_st_shndx(),
2001 target
->rela_dyn_section(layout
),
2003 ? elfcpp::R_SPARC_TLS_DTPMOD64
2004 : elfcpp::R_SPARC_TLS_DTPMOD32
),
2006 if (r_type
== elfcpp::R_SPARC_TLS_GD_CALL
)
2007 generate_tls_call(symtab
, layout
, target
);
2009 else if (optimized_type
!= tls::TLSOPT_TO_LE
)
2010 unsupported_reloc_local(object
, r_type
);
2013 case elfcpp::R_SPARC_TLS_LDM_HI22
: // Local-dynamic
2014 case elfcpp::R_SPARC_TLS_LDM_LO10
:
2015 case elfcpp::R_SPARC_TLS_LDM_ADD
:
2016 case elfcpp::R_SPARC_TLS_LDM_CALL
:
2017 if (optimized_type
== tls::TLSOPT_NONE
)
2019 // Create a GOT entry for the module index.
2020 target
->got_mod_index_entry(symtab
, layout
, object
);
2022 if (r_type
== elfcpp::R_SPARC_TLS_LDM_CALL
)
2023 generate_tls_call(symtab
, layout
, target
);
2025 else if (optimized_type
!= tls::TLSOPT_TO_LE
)
2026 unsupported_reloc_local(object
, r_type
);
2029 case elfcpp::R_SPARC_TLS_LDO_HIX22
: // Alternate local-dynamic
2030 case elfcpp::R_SPARC_TLS_LDO_LOX10
:
2031 case elfcpp::R_SPARC_TLS_LDO_ADD
:
2034 case elfcpp::R_SPARC_TLS_IE_HI22
: // Initial-exec
2035 case elfcpp::R_SPARC_TLS_IE_LO10
:
2036 case elfcpp::R_SPARC_TLS_IE_LD
:
2037 case elfcpp::R_SPARC_TLS_IE_LDX
:
2038 case elfcpp::R_SPARC_TLS_IE_ADD
:
2039 layout
->set_has_static_tls();
2040 if (optimized_type
== tls::TLSOPT_NONE
)
2042 // Create a GOT entry for the tp-relative offset.
2043 Output_data_got
<size
, big_endian
>* got
2044 = target
->got_section(symtab
, layout
);
2045 unsigned int r_sym
= elfcpp::elf_r_sym
<size
>(reloc
.get_r_info());
2047 if (!object
->local_has_got_offset(r_sym
, GOT_TYPE_TLS_OFFSET
))
2049 Reloc_section
* rela_dyn
= target
->rela_dyn_section(layout
);
2050 unsigned int off
= got
->add_constant(0);
2052 object
->set_local_got_offset(r_sym
, GOT_TYPE_TLS_OFFSET
, off
);
2054 rela_dyn
->add_symbolless_local_addend(object
, r_sym
,
2056 elfcpp::R_SPARC_TLS_TPOFF64
:
2057 elfcpp::R_SPARC_TLS_TPOFF32
),
2061 else if (optimized_type
!= tls::TLSOPT_TO_LE
)
2062 unsupported_reloc_local(object
, r_type
);
2065 case elfcpp::R_SPARC_TLS_LE_HIX22
: // Local-exec
2066 case elfcpp::R_SPARC_TLS_LE_LOX10
:
2067 layout
->set_has_static_tls();
2068 if (output_is_shared
)
2070 // We need to create a dynamic relocation.
2071 gold_assert(lsym
.get_st_type() != elfcpp::STT_SECTION
);
2072 unsigned int r_sym
= elfcpp::elf_r_sym
<size
>(reloc
.get_r_info());
2073 Reloc_section
* rela_dyn
= target
->rela_dyn_section(layout
);
2074 rela_dyn
->add_symbolless_local_addend(object
, r_sym
, r_type
,
2075 output_section
, data_shndx
,
2076 reloc
.get_r_offset(), 0);
2083 // These are relocations which should only be seen by the
2084 // dynamic linker, and should never be seen here.
2085 case elfcpp::R_SPARC_COPY
:
2086 case elfcpp::R_SPARC_GLOB_DAT
:
2087 case elfcpp::R_SPARC_JMP_SLOT
:
2088 case elfcpp::R_SPARC_RELATIVE
:
2089 case elfcpp::R_SPARC_TLS_DTPMOD64
:
2090 case elfcpp::R_SPARC_TLS_DTPMOD32
:
2091 case elfcpp::R_SPARC_TLS_DTPOFF64
:
2092 case elfcpp::R_SPARC_TLS_DTPOFF32
:
2093 case elfcpp::R_SPARC_TLS_TPOFF64
:
2094 case elfcpp::R_SPARC_TLS_TPOFF32
:
2095 gold_error(_("%s: unexpected reloc %u in object file"),
2096 object
->name().c_str(), r_type
);
2100 unsupported_reloc_local(object
, r_type
);
2105 // Report an unsupported relocation against a global symbol.
2107 template<int size
, bool big_endian
>
2109 Target_sparc
<size
, big_endian
>::Scan::unsupported_reloc_global(
2110 Sized_relobj_file
<size
, big_endian
>* object
,
2111 unsigned int r_type
,
2114 gold_error(_("%s: unsupported reloc %u against global symbol %s"),
2115 object
->name().c_str(), r_type
, gsym
->demangled_name().c_str());
2118 // Scan a relocation for a global symbol.
2120 template<int size
, bool big_endian
>
2122 Target_sparc
<size
, big_endian
>::Scan::global(
2123 Symbol_table
* symtab
,
2125 Target_sparc
<size
, big_endian
>* target
,
2126 Sized_relobj_file
<size
, big_endian
>* object
,
2127 unsigned int data_shndx
,
2128 Output_section
* output_section
,
2129 const elfcpp::Rela
<size
, big_endian
>& reloc
,
2130 unsigned int r_type
,
2133 unsigned int orig_r_type
= r_type
;
2135 // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got
2136 // section. We check here to avoid creating a dynamic reloc against
2137 // _GLOBAL_OFFSET_TABLE_.
2138 if (!target
->has_got_section()
2139 && strcmp(gsym
->name(), "_GLOBAL_OFFSET_TABLE_") == 0)
2140 target
->got_section(symtab
, layout
);
2145 case elfcpp::R_SPARC_NONE
:
2146 case elfcpp::R_SPARC_REGISTER
:
2147 case elfcpp::R_SPARC_GNU_VTINHERIT
:
2148 case elfcpp::R_SPARC_GNU_VTENTRY
:
2151 case elfcpp::R_SPARC_PLT64
:
2152 case elfcpp::R_SPARC_PLT32
:
2153 case elfcpp::R_SPARC_HIPLT22
:
2154 case elfcpp::R_SPARC_LOPLT10
:
2155 case elfcpp::R_SPARC_PCPLT32
:
2156 case elfcpp::R_SPARC_PCPLT22
:
2157 case elfcpp::R_SPARC_PCPLT10
:
2158 case elfcpp::R_SPARC_WPLT30
:
2159 // If the symbol is fully resolved, this is just a PC32 reloc.
2160 // Otherwise we need a PLT entry.
2161 if (gsym
->final_value_is_known())
2163 // If building a shared library, we can also skip the PLT entry
2164 // if the symbol is defined in the output file and is protected
2166 if (gsym
->is_defined()
2167 && !gsym
->is_from_dynobj()
2168 && !gsym
->is_preemptible())
2170 target
->make_plt_entry(symtab
, layout
, gsym
);
2173 case elfcpp::R_SPARC_DISP8
:
2174 case elfcpp::R_SPARC_DISP16
:
2175 case elfcpp::R_SPARC_DISP32
:
2176 case elfcpp::R_SPARC_DISP64
:
2177 case elfcpp::R_SPARC_PC_HH22
:
2178 case elfcpp::R_SPARC_PC_HM10
:
2179 case elfcpp::R_SPARC_PC_LM22
:
2180 case elfcpp::R_SPARC_PC10
:
2181 case elfcpp::R_SPARC_PC22
:
2182 case elfcpp::R_SPARC_WDISP30
:
2183 case elfcpp::R_SPARC_WDISP22
:
2184 case elfcpp::R_SPARC_WDISP19
:
2185 case elfcpp::R_SPARC_WDISP16
:
2187 if (gsym
->needs_plt_entry())
2188 target
->make_plt_entry(symtab
, layout
, gsym
);
2189 // Make a dynamic relocation if necessary.
2190 if (gsym
->needs_dynamic_reloc(Scan::get_reference_flags(r_type
)))
2192 if (gsym
->may_need_copy_reloc())
2194 target
->copy_reloc(symtab
, layout
, object
,
2195 data_shndx
, output_section
, gsym
,
2200 Reloc_section
* rela_dyn
= target
->rela_dyn_section(layout
);
2201 check_non_pic(object
, r_type
);
2202 rela_dyn
->add_global(gsym
, orig_r_type
, output_section
, object
,
2203 data_shndx
, reloc
.get_r_offset(),
2204 reloc
.get_r_addend());
2210 case elfcpp::R_SPARC_UA64
:
2211 case elfcpp::R_SPARC_64
:
2212 case elfcpp::R_SPARC_HIX22
:
2213 case elfcpp::R_SPARC_LOX10
:
2214 case elfcpp::R_SPARC_H44
:
2215 case elfcpp::R_SPARC_M44
:
2216 case elfcpp::R_SPARC_L44
:
2217 case elfcpp::R_SPARC_HH22
:
2218 case elfcpp::R_SPARC_HM10
:
2219 case elfcpp::R_SPARC_LM22
:
2220 case elfcpp::R_SPARC_HI22
:
2221 case elfcpp::R_SPARC_LO10
:
2222 case elfcpp::R_SPARC_OLO10
:
2223 case elfcpp::R_SPARC_UA32
:
2224 case elfcpp::R_SPARC_32
:
2225 case elfcpp::R_SPARC_UA16
:
2226 case elfcpp::R_SPARC_16
:
2227 case elfcpp::R_SPARC_11
:
2228 case elfcpp::R_SPARC_10
:
2229 case elfcpp::R_SPARC_8
:
2230 case elfcpp::R_SPARC_7
:
2231 case elfcpp::R_SPARC_6
:
2232 case elfcpp::R_SPARC_5
:
2234 // Make a PLT entry if necessary.
2235 if (gsym
->needs_plt_entry())
2237 target
->make_plt_entry(symtab
, layout
, gsym
);
2238 // Since this is not a PC-relative relocation, we may be
2239 // taking the address of a function. In that case we need to
2240 // set the entry in the dynamic symbol table to the address of
2242 if (gsym
->is_from_dynobj() && !parameters
->options().shared())
2243 gsym
->set_needs_dynsym_value();
2245 // Make a dynamic relocation if necessary.
2246 if (gsym
->needs_dynamic_reloc(Scan::get_reference_flags(r_type
)))
2248 unsigned int r_off
= reloc
.get_r_offset();
2250 // The assembler can sometimes emit unaligned relocations
2251 // for dwarf2 cfi directives.
2254 case elfcpp::R_SPARC_16
:
2256 orig_r_type
= r_type
= elfcpp::R_SPARC_UA16
;
2258 case elfcpp::R_SPARC_32
:
2260 orig_r_type
= r_type
= elfcpp::R_SPARC_UA32
;
2262 case elfcpp::R_SPARC_64
:
2264 orig_r_type
= r_type
= elfcpp::R_SPARC_UA64
;
2266 case elfcpp::R_SPARC_UA16
:
2268 orig_r_type
= r_type
= elfcpp::R_SPARC_16
;
2270 case elfcpp::R_SPARC_UA32
:
2272 orig_r_type
= r_type
= elfcpp::R_SPARC_32
;
2274 case elfcpp::R_SPARC_UA64
:
2276 orig_r_type
= r_type
= elfcpp::R_SPARC_64
;
2280 if (gsym
->may_need_copy_reloc())
2282 target
->copy_reloc(symtab
, layout
, object
,
2283 data_shndx
, output_section
, gsym
, reloc
);
2285 else if ((r_type
== elfcpp::R_SPARC_32
2286 || r_type
== elfcpp::R_SPARC_64
)
2287 && gsym
->can_use_relative_reloc(false))
2289 Reloc_section
* rela_dyn
= target
->rela_dyn_section(layout
);
2290 rela_dyn
->add_global_relative(gsym
, elfcpp::R_SPARC_RELATIVE
,
2291 output_section
, object
,
2292 data_shndx
, reloc
.get_r_offset(),
2293 reloc
.get_r_addend());
2297 Reloc_section
* rela_dyn
= target
->rela_dyn_section(layout
);
2299 check_non_pic(object
, r_type
);
2300 if (gsym
->is_from_dynobj()
2301 || gsym
->is_undefined()
2302 || gsym
->is_preemptible())
2303 rela_dyn
->add_global(gsym
, orig_r_type
, output_section
,
2305 reloc
.get_r_offset(),
2306 reloc
.get_r_addend());
2308 rela_dyn
->add_symbolless_global_addend(gsym
, orig_r_type
,
2311 reloc
.get_r_offset(),
2312 reloc
.get_r_addend());
2318 case elfcpp::R_SPARC_GOTDATA_OP
:
2319 case elfcpp::R_SPARC_GOTDATA_OP_HIX22
:
2320 case elfcpp::R_SPARC_GOTDATA_OP_LOX10
:
2321 case elfcpp::R_SPARC_GOT10
:
2322 case elfcpp::R_SPARC_GOT13
:
2323 case elfcpp::R_SPARC_GOT22
:
2325 // The symbol requires a GOT entry.
2326 Output_data_got
<size
, big_endian
>* got
;
2328 got
= target
->got_section(symtab
, layout
);
2329 if (gsym
->final_value_is_known())
2330 got
->add_global(gsym
, GOT_TYPE_STANDARD
);
2333 // If this symbol is not fully resolved, we need to add a
2334 // dynamic relocation for it.
2335 Reloc_section
* rela_dyn
= target
->rela_dyn_section(layout
);
2336 if (gsym
->is_from_dynobj()
2337 || gsym
->is_undefined()
2338 || gsym
->is_preemptible())
2339 got
->add_global_with_rela(gsym
, GOT_TYPE_STANDARD
, rela_dyn
,
2340 elfcpp::R_SPARC_GLOB_DAT
);
2341 else if (!gsym
->has_got_offset(GOT_TYPE_STANDARD
))
2343 unsigned int off
= got
->add_constant(0);
2345 gsym
->set_got_offset(GOT_TYPE_STANDARD
, off
);
2346 rela_dyn
->add_global_relative(gsym
, elfcpp::R_SPARC_RELATIVE
,
2353 // These are initial tls relocs, which are expected when
2355 case elfcpp::R_SPARC_TLS_GD_HI22
: // Global-dynamic
2356 case elfcpp::R_SPARC_TLS_GD_LO10
:
2357 case elfcpp::R_SPARC_TLS_GD_ADD
:
2358 case elfcpp::R_SPARC_TLS_GD_CALL
:
2359 case elfcpp::R_SPARC_TLS_LDM_HI22
: // Local-dynamic
2360 case elfcpp::R_SPARC_TLS_LDM_LO10
:
2361 case elfcpp::R_SPARC_TLS_LDM_ADD
:
2362 case elfcpp::R_SPARC_TLS_LDM_CALL
:
2363 case elfcpp::R_SPARC_TLS_LDO_HIX22
: // Alternate local-dynamic
2364 case elfcpp::R_SPARC_TLS_LDO_LOX10
:
2365 case elfcpp::R_SPARC_TLS_LDO_ADD
:
2366 case elfcpp::R_SPARC_TLS_LE_HIX22
:
2367 case elfcpp::R_SPARC_TLS_LE_LOX10
:
2368 case elfcpp::R_SPARC_TLS_IE_HI22
: // Initial-exec
2369 case elfcpp::R_SPARC_TLS_IE_LO10
:
2370 case elfcpp::R_SPARC_TLS_IE_LD
:
2371 case elfcpp::R_SPARC_TLS_IE_LDX
:
2372 case elfcpp::R_SPARC_TLS_IE_ADD
:
2374 const bool is_final
= gsym
->final_value_is_known();
2375 const tls::Tls_optimization optimized_type
2376 = optimize_tls_reloc(is_final
, r_type
);
2379 case elfcpp::R_SPARC_TLS_GD_HI22
: // Global-dynamic
2380 case elfcpp::R_SPARC_TLS_GD_LO10
:
2381 case elfcpp::R_SPARC_TLS_GD_ADD
:
2382 case elfcpp::R_SPARC_TLS_GD_CALL
:
2383 if (optimized_type
== tls::TLSOPT_NONE
)
2385 // Create a pair of GOT entries for the module index and
2386 // dtv-relative offset.
2387 Output_data_got
<size
, big_endian
>* got
2388 = target
->got_section(symtab
, layout
);
2389 got
->add_global_pair_with_rela(gsym
, GOT_TYPE_TLS_PAIR
,
2390 target
->rela_dyn_section(layout
),
2392 elfcpp::R_SPARC_TLS_DTPMOD64
:
2393 elfcpp::R_SPARC_TLS_DTPMOD32
),
2395 elfcpp::R_SPARC_TLS_DTPOFF64
:
2396 elfcpp::R_SPARC_TLS_DTPOFF32
));
2398 // Emit R_SPARC_WPLT30 against "__tls_get_addr"
2399 if (r_type
== elfcpp::R_SPARC_TLS_GD_CALL
)
2400 generate_tls_call(symtab
, layout
, target
);
2402 else if (optimized_type
== tls::TLSOPT_TO_IE
)
2404 // Create a GOT entry for the tp-relative offset.
2405 Output_data_got
<size
, big_endian
>* got
2406 = target
->got_section(symtab
, layout
);
2407 got
->add_global_with_rela(gsym
, GOT_TYPE_TLS_OFFSET
,
2408 target
->rela_dyn_section(layout
),
2410 elfcpp::R_SPARC_TLS_TPOFF64
:
2411 elfcpp::R_SPARC_TLS_TPOFF32
));
2413 else if (optimized_type
!= tls::TLSOPT_TO_LE
)
2414 unsupported_reloc_global(object
, r_type
, gsym
);
2417 case elfcpp::R_SPARC_TLS_LDM_HI22
: // Local-dynamic
2418 case elfcpp::R_SPARC_TLS_LDM_LO10
:
2419 case elfcpp::R_SPARC_TLS_LDM_ADD
:
2420 case elfcpp::R_SPARC_TLS_LDM_CALL
:
2421 if (optimized_type
== tls::TLSOPT_NONE
)
2423 // Create a GOT entry for the module index.
2424 target
->got_mod_index_entry(symtab
, layout
, object
);
2426 if (r_type
== elfcpp::R_SPARC_TLS_LDM_CALL
)
2427 generate_tls_call(symtab
, layout
, target
);
2429 else if (optimized_type
!= tls::TLSOPT_TO_LE
)
2430 unsupported_reloc_global(object
, r_type
, gsym
);
2433 case elfcpp::R_SPARC_TLS_LDO_HIX22
: // Alternate local-dynamic
2434 case elfcpp::R_SPARC_TLS_LDO_LOX10
:
2435 case elfcpp::R_SPARC_TLS_LDO_ADD
:
2438 case elfcpp::R_SPARC_TLS_LE_HIX22
:
2439 case elfcpp::R_SPARC_TLS_LE_LOX10
:
2440 layout
->set_has_static_tls();
2441 if (parameters
->options().shared())
2443 Reloc_section
* rela_dyn
= target
->rela_dyn_section(layout
);
2444 rela_dyn
->add_symbolless_global_addend(gsym
, orig_r_type
,
2445 output_section
, object
,
2446 data_shndx
, reloc
.get_r_offset(),
2451 case elfcpp::R_SPARC_TLS_IE_HI22
: // Initial-exec
2452 case elfcpp::R_SPARC_TLS_IE_LO10
:
2453 case elfcpp::R_SPARC_TLS_IE_LD
:
2454 case elfcpp::R_SPARC_TLS_IE_LDX
:
2455 case elfcpp::R_SPARC_TLS_IE_ADD
:
2456 layout
->set_has_static_tls();
2457 if (optimized_type
== tls::TLSOPT_NONE
)
2459 // Create a GOT entry for the tp-relative offset.
2460 Output_data_got
<size
, big_endian
>* got
2461 = target
->got_section(symtab
, layout
);
2462 got
->add_global_with_rela(gsym
, GOT_TYPE_TLS_OFFSET
,
2463 target
->rela_dyn_section(layout
),
2465 elfcpp::R_SPARC_TLS_TPOFF64
:
2466 elfcpp::R_SPARC_TLS_TPOFF32
));
2468 else if (optimized_type
!= tls::TLSOPT_TO_LE
)
2469 unsupported_reloc_global(object
, r_type
, gsym
);
2475 // These are relocations which should only be seen by the
2476 // dynamic linker, and should never be seen here.
2477 case elfcpp::R_SPARC_COPY
:
2478 case elfcpp::R_SPARC_GLOB_DAT
:
2479 case elfcpp::R_SPARC_JMP_SLOT
:
2480 case elfcpp::R_SPARC_RELATIVE
:
2481 case elfcpp::R_SPARC_TLS_DTPMOD64
:
2482 case elfcpp::R_SPARC_TLS_DTPMOD32
:
2483 case elfcpp::R_SPARC_TLS_DTPOFF64
:
2484 case elfcpp::R_SPARC_TLS_DTPOFF32
:
2485 case elfcpp::R_SPARC_TLS_TPOFF64
:
2486 case elfcpp::R_SPARC_TLS_TPOFF32
:
2487 gold_error(_("%s: unexpected reloc %u in object file"),
2488 object
->name().c_str(), r_type
);
2492 unsupported_reloc_global(object
, r_type
, gsym
);
2497 // Process relocations for gc.
2499 template<int size
, bool big_endian
>
2501 Target_sparc
<size
, big_endian
>::gc_process_relocs(
2502 Symbol_table
* symtab
,
2504 Sized_relobj_file
<size
, big_endian
>* object
,
2505 unsigned int data_shndx
,
2507 const unsigned char* prelocs
,
2509 Output_section
* output_section
,
2510 bool needs_special_offset_handling
,
2511 size_t local_symbol_count
,
2512 const unsigned char* plocal_symbols
)
2514 typedef Target_sparc
<size
, big_endian
> Sparc
;
2515 typedef typename Target_sparc
<size
, big_endian
>::Scan Scan
;
2517 gold::gc_process_relocs
<size
, big_endian
, Sparc
, elfcpp::SHT_RELA
, Scan
,
2518 typename
Target_sparc::Relocatable_size_for_reloc
>(
2527 needs_special_offset_handling
,
2532 // Scan relocations for a section.
2534 template<int size
, bool big_endian
>
2536 Target_sparc
<size
, big_endian
>::scan_relocs(
2537 Symbol_table
* symtab
,
2539 Sized_relobj_file
<size
, big_endian
>* object
,
2540 unsigned int data_shndx
,
2541 unsigned int sh_type
,
2542 const unsigned char* prelocs
,
2544 Output_section
* output_section
,
2545 bool needs_special_offset_handling
,
2546 size_t local_symbol_count
,
2547 const unsigned char* plocal_symbols
)
2549 typedef Target_sparc
<size
, big_endian
> Sparc
;
2550 typedef typename Target_sparc
<size
, big_endian
>::Scan Scan
;
2552 if (sh_type
== elfcpp::SHT_REL
)
2554 gold_error(_("%s: unsupported REL reloc section"),
2555 object
->name().c_str());
2559 gold::scan_relocs
<size
, big_endian
, Sparc
, elfcpp::SHT_RELA
, Scan
>(
2568 needs_special_offset_handling
,
2573 // Finalize the sections.
2575 template<int size
, bool big_endian
>
2577 Target_sparc
<size
, big_endian
>::do_finalize_sections(
2579 const Input_objects
*,
2582 // Fill in some more dynamic tags.
2583 const Reloc_section
* rel_plt
= (this->plt_
== NULL
2585 : this->plt_
->rel_plt());
2586 layout
->add_target_dynamic_tags(false, this->plt_
, rel_plt
,
2587 this->rela_dyn_
, true, true);
2589 // Emit any relocs we saved in an attempt to avoid generating COPY
2591 if (this->copy_relocs_
.any_saved_relocs())
2592 this->copy_relocs_
.emit(this->rela_dyn_section(layout
));
2595 // Perform a relocation.
2597 template<int size
, bool big_endian
>
2599 Target_sparc
<size
, big_endian
>::Relocate::relocate(
2600 const Relocate_info
<size
, big_endian
>* relinfo
,
2601 Target_sparc
* target
,
2604 const elfcpp::Rela
<size
, big_endian
>& rela
,
2605 unsigned int r_type
,
2606 const Sized_symbol
<size
>* gsym
,
2607 const Symbol_value
<size
>* psymval
,
2608 unsigned char* view
,
2609 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
,
2610 section_size_type view_size
)
2614 if (this->ignore_gd_add_
)
2616 if (r_type
!= elfcpp::R_SPARC_TLS_GD_ADD
)
2617 gold_error_at_location(relinfo
, relnum
, rela
.get_r_offset(),
2618 _("missing expected TLS relocation"));
2621 this->ignore_gd_add_
= false;
2626 typedef Sparc_relocate_functions
<size
, big_endian
> Reloc
;
2628 // Pick the value to use for symbols defined in shared objects.
2629 Symbol_value
<size
> symval
;
2631 && gsym
->use_plt_offset(Scan::get_reference_flags(r_type
)))
2633 elfcpp::Elf_Xword value
;
2635 value
= target
->plt_section()->address() + gsym
->plt_offset();
2637 symval
.set_output_value(value
);
2642 const Sized_relobj_file
<size
, big_endian
>* object
= relinfo
->object
;
2643 const elfcpp::Elf_Xword addend
= rela
.get_r_addend();
2645 // Get the GOT offset if needed. Unlike i386 and x86_64, our GOT
2646 // pointer points to the beginning, not the end, of the table.
2647 // So we just use the plain offset.
2648 unsigned int got_offset
= 0;
2651 case elfcpp::R_SPARC_GOTDATA_OP
:
2652 case elfcpp::R_SPARC_GOTDATA_OP_HIX22
:
2653 case elfcpp::R_SPARC_GOTDATA_OP_LOX10
:
2654 case elfcpp::R_SPARC_GOT10
:
2655 case elfcpp::R_SPARC_GOT13
:
2656 case elfcpp::R_SPARC_GOT22
:
2659 gold_assert(gsym
->has_got_offset(GOT_TYPE_STANDARD
));
2660 got_offset
= gsym
->got_offset(GOT_TYPE_STANDARD
);
2664 unsigned int r_sym
= elfcpp::elf_r_sym
<size
>(rela
.get_r_info());
2665 gold_assert(object
->local_has_got_offset(r_sym
, GOT_TYPE_STANDARD
));
2666 got_offset
= object
->local_got_offset(r_sym
, GOT_TYPE_STANDARD
);
2676 case elfcpp::R_SPARC_NONE
:
2677 case elfcpp::R_SPARC_REGISTER
:
2678 case elfcpp::R_SPARC_GNU_VTINHERIT
:
2679 case elfcpp::R_SPARC_GNU_VTENTRY
:
2682 case elfcpp::R_SPARC_8
:
2683 Relocate_functions
<size
, big_endian
>::rela8(view
, object
,
2687 case elfcpp::R_SPARC_16
:
2688 if (rela
.get_r_offset() & 0x1)
2690 // The assembler can sometimes emit unaligned relocations
2691 // for dwarf2 cfi directives.
2692 Reloc::ua16(view
, object
, psymval
, addend
);
2695 Relocate_functions
<size
, big_endian
>::rela16(view
, object
,
2699 case elfcpp::R_SPARC_32
:
2700 if (!parameters
->options().output_is_position_independent())
2702 if (rela
.get_r_offset() & 0x3)
2704 // The assembler can sometimes emit unaligned relocations
2705 // for dwarf2 cfi directives.
2706 Reloc::ua32(view
, object
, psymval
, addend
);
2709 Relocate_functions
<size
, big_endian
>::rela32(view
, object
,
2714 case elfcpp::R_SPARC_DISP8
:
2715 Reloc::disp8(view
, object
, psymval
, addend
, address
);
2718 case elfcpp::R_SPARC_DISP16
:
2719 Reloc::disp16(view
, object
, psymval
, addend
, address
);
2722 case elfcpp::R_SPARC_DISP32
:
2723 Reloc::disp32(view
, object
, psymval
, addend
, address
);
2726 case elfcpp::R_SPARC_DISP64
:
2727 Reloc::disp64(view
, object
, psymval
, addend
, address
);
2730 case elfcpp::R_SPARC_WDISP30
:
2731 case elfcpp::R_SPARC_WPLT30
:
2732 Reloc::wdisp30(view
, object
, psymval
, addend
, address
);
2735 case elfcpp::R_SPARC_WDISP22
:
2736 Reloc::wdisp22(view
, object
, psymval
, addend
, address
);
2739 case elfcpp::R_SPARC_WDISP19
:
2740 Reloc::wdisp19(view
, object
, psymval
, addend
, address
);
2743 case elfcpp::R_SPARC_WDISP16
:
2744 Reloc::wdisp16(view
, object
, psymval
, addend
, address
);
2747 case elfcpp::R_SPARC_HI22
:
2748 Reloc::hi22(view
, object
, psymval
, addend
);
2751 case elfcpp::R_SPARC_22
:
2752 Reloc::rela32_22(view
, object
, psymval
, addend
);
2755 case elfcpp::R_SPARC_13
:
2756 Reloc::rela32_13(view
, object
, psymval
, addend
);
2759 case elfcpp::R_SPARC_LO10
:
2760 Reloc::lo10(view
, object
, psymval
, addend
);
2763 case elfcpp::R_SPARC_GOT10
:
2764 Reloc::lo10(view
, got_offset
, addend
);
2767 case elfcpp::R_SPARC_GOTDATA_OP
:
2770 case elfcpp::R_SPARC_GOTDATA_OP_LOX10
:
2771 case elfcpp::R_SPARC_GOT13
:
2772 Reloc::rela32_13(view
, got_offset
, addend
);
2775 case elfcpp::R_SPARC_GOTDATA_OP_HIX22
:
2776 case elfcpp::R_SPARC_GOT22
:
2777 Reloc::hi22(view
, got_offset
, addend
);
2780 case elfcpp::R_SPARC_PC10
:
2781 Reloc::pc10(view
, object
, psymval
, addend
, address
);
2784 case elfcpp::R_SPARC_PC22
:
2785 Reloc::pc22(view
, object
, psymval
, addend
, address
);
2788 case elfcpp::R_SPARC_TLS_DTPOFF32
:
2789 case elfcpp::R_SPARC_UA32
:
2790 Reloc::ua32(view
, object
, psymval
, addend
);
2793 case elfcpp::R_SPARC_PLT64
:
2794 Relocate_functions
<size
, big_endian
>::rela64(view
, object
,
2798 case elfcpp::R_SPARC_PLT32
:
2799 Relocate_functions
<size
, big_endian
>::rela32(view
, object
,
2803 case elfcpp::R_SPARC_HIPLT22
:
2804 Reloc::hi22(view
, object
, psymval
, addend
);
2807 case elfcpp::R_SPARC_LOPLT10
:
2808 Reloc::lo10(view
, object
, psymval
, addend
);
2811 case elfcpp::R_SPARC_PCPLT32
:
2812 Reloc::disp32(view
, object
, psymval
, addend
, address
);
2815 case elfcpp::R_SPARC_PCPLT22
:
2816 Reloc::pcplt22(view
, object
, psymval
, addend
, address
);
2819 case elfcpp::R_SPARC_PCPLT10
:
2820 Reloc::lo10(view
, object
, psymval
, addend
, address
);
2823 case elfcpp::R_SPARC_64
:
2824 if (!parameters
->options().output_is_position_independent())
2826 if (rela
.get_r_offset() & 0x7)
2828 // The assembler can sometimes emit unaligned relocations
2829 // for dwarf2 cfi directives.
2830 Reloc::ua64(view
, object
, psymval
, addend
);
2833 Relocate_functions
<size
, big_endian
>::rela64(view
, object
,
2838 case elfcpp::R_SPARC_OLO10
:
2840 unsigned int addend2
= rela
.get_r_info() & 0xffffffff;
2841 addend2
= ((addend2
>> 8) ^ 0x800000) - 0x800000;
2842 Reloc::olo10(view
, object
, psymval
, addend
, addend2
);
2846 case elfcpp::R_SPARC_HH22
:
2847 Reloc::hh22(view
, object
, psymval
, addend
);
2850 case elfcpp::R_SPARC_PC_HH22
:
2851 Reloc::pc_hh22(view
, object
, psymval
, addend
, address
);
2854 case elfcpp::R_SPARC_HM10
:
2855 Reloc::hm10(view
, object
, psymval
, addend
);
2858 case elfcpp::R_SPARC_PC_HM10
:
2859 Reloc::pc_hm10(view
, object
, psymval
, addend
, address
);
2862 case elfcpp::R_SPARC_LM22
:
2863 Reloc::hi22(view
, object
, psymval
, addend
);
2866 case elfcpp::R_SPARC_PC_LM22
:
2867 Reloc::pcplt22(view
, object
, psymval
, addend
, address
);
2870 case elfcpp::R_SPARC_11
:
2871 Reloc::rela32_11(view
, object
, psymval
, addend
);
2874 case elfcpp::R_SPARC_10
:
2875 Reloc::rela32_10(view
, object
, psymval
, addend
);
2878 case elfcpp::R_SPARC_7
:
2879 Reloc::rela32_7(view
, object
, psymval
, addend
);
2882 case elfcpp::R_SPARC_6
:
2883 Reloc::rela32_6(view
, object
, psymval
, addend
);
2886 case elfcpp::R_SPARC_5
:
2887 Reloc::rela32_5(view
, object
, psymval
, addend
);
2890 case elfcpp::R_SPARC_HIX22
:
2891 Reloc::hix22(view
, object
, psymval
, addend
);
2894 case elfcpp::R_SPARC_LOX10
:
2895 Reloc::lox10(view
, object
, psymval
, addend
);
2898 case elfcpp::R_SPARC_H44
:
2899 Reloc::h44(view
, object
, psymval
, addend
);
2902 case elfcpp::R_SPARC_M44
:
2903 Reloc::m44(view
, object
, psymval
, addend
);
2906 case elfcpp::R_SPARC_L44
:
2907 Reloc::l44(view
, object
, psymval
, addend
);
2910 case elfcpp::R_SPARC_TLS_DTPOFF64
:
2911 case elfcpp::R_SPARC_UA64
:
2912 Reloc::ua64(view
, object
, psymval
, addend
);
2915 case elfcpp::R_SPARC_UA16
:
2916 Reloc::ua16(view
, object
, psymval
, addend
);
2919 case elfcpp::R_SPARC_TLS_GD_HI22
:
2920 case elfcpp::R_SPARC_TLS_GD_LO10
:
2921 case elfcpp::R_SPARC_TLS_GD_ADD
:
2922 case elfcpp::R_SPARC_TLS_GD_CALL
:
2923 case elfcpp::R_SPARC_TLS_LDM_HI22
:
2924 case elfcpp::R_SPARC_TLS_LDM_LO10
:
2925 case elfcpp::R_SPARC_TLS_LDM_ADD
:
2926 case elfcpp::R_SPARC_TLS_LDM_CALL
:
2927 case elfcpp::R_SPARC_TLS_LDO_HIX22
:
2928 case elfcpp::R_SPARC_TLS_LDO_LOX10
:
2929 case elfcpp::R_SPARC_TLS_LDO_ADD
:
2930 case elfcpp::R_SPARC_TLS_IE_HI22
:
2931 case elfcpp::R_SPARC_TLS_IE_LO10
:
2932 case elfcpp::R_SPARC_TLS_IE_LD
:
2933 case elfcpp::R_SPARC_TLS_IE_LDX
:
2934 case elfcpp::R_SPARC_TLS_IE_ADD
:
2935 case elfcpp::R_SPARC_TLS_LE_HIX22
:
2936 case elfcpp::R_SPARC_TLS_LE_LOX10
:
2937 this->relocate_tls(relinfo
, target
, relnum
, rela
,
2938 r_type
, gsym
, psymval
, view
,
2939 address
, view_size
);
2942 case elfcpp::R_SPARC_COPY
:
2943 case elfcpp::R_SPARC_GLOB_DAT
:
2944 case elfcpp::R_SPARC_JMP_SLOT
:
2945 case elfcpp::R_SPARC_RELATIVE
:
2946 // These are outstanding tls relocs, which are unexpected when
2948 case elfcpp::R_SPARC_TLS_DTPMOD64
:
2949 case elfcpp::R_SPARC_TLS_DTPMOD32
:
2950 case elfcpp::R_SPARC_TLS_TPOFF64
:
2951 case elfcpp::R_SPARC_TLS_TPOFF32
:
2952 gold_error_at_location(relinfo
, relnum
, rela
.get_r_offset(),
2953 _("unexpected reloc %u in object file"),
2958 gold_error_at_location(relinfo
, relnum
, rela
.get_r_offset(),
2959 _("unsupported reloc %u"),
2967 // Perform a TLS relocation.
2969 template<int size
, bool big_endian
>
2971 Target_sparc
<size
, big_endian
>::Relocate::relocate_tls(
2972 const Relocate_info
<size
, big_endian
>* relinfo
,
2973 Target_sparc
<size
, big_endian
>* target
,
2975 const elfcpp::Rela
<size
, big_endian
>& rela
,
2976 unsigned int r_type
,
2977 const Sized_symbol
<size
>* gsym
,
2978 const Symbol_value
<size
>* psymval
,
2979 unsigned char* view
,
2980 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
,
2983 Output_segment
* tls_segment
= relinfo
->layout
->tls_segment();
2984 typedef Sparc_relocate_functions
<size
, big_endian
> Reloc
;
2985 const Sized_relobj_file
<size
, big_endian
>* object
= relinfo
->object
;
2986 typedef typename
elfcpp::Swap
<32, true>::Valtype Insntype
;
2988 const elfcpp::Elf_Xword addend
= rela
.get_r_addend();
2989 typename
elfcpp::Elf_types
<size
>::Elf_Addr value
= psymval
->value(object
, 0);
2991 const bool is_final
=
2993 ? !parameters
->options().output_is_position_independent()
2994 : gsym
->final_value_is_known());
2995 const tls::Tls_optimization optimized_type
2996 = optimize_tls_reloc(is_final
, r_type
);
3000 case elfcpp::R_SPARC_TLS_GD_HI22
:
3001 case elfcpp::R_SPARC_TLS_GD_LO10
:
3002 case elfcpp::R_SPARC_TLS_GD_ADD
:
3003 case elfcpp::R_SPARC_TLS_GD_CALL
:
3004 if (optimized_type
== tls::TLSOPT_TO_LE
)
3006 Insntype
* wv
= reinterpret_cast<Insntype
*>(view
);
3009 value
-= tls_segment
->memsz();
3013 case elfcpp::R_SPARC_TLS_GD_HI22
:
3014 // TLS_GD_HI22 --> TLS_LE_HIX22
3015 Reloc::hix22(view
, value
, addend
);
3018 case elfcpp::R_SPARC_TLS_GD_LO10
:
3019 // TLS_GD_LO10 --> TLS_LE_LOX10
3020 Reloc::lox10(view
, value
, addend
);
3023 case elfcpp::R_SPARC_TLS_GD_ADD
:
3024 // add %reg1, %reg2, %reg3 --> mov %g7, %reg2, %reg3
3025 val
= elfcpp::Swap
<32, true>::readval(wv
);
3026 val
= (val
& ~0x7c000) | 0x1c000;
3027 elfcpp::Swap
<32, true>::writeval(wv
, val
);
3029 case elfcpp::R_SPARC_TLS_GD_CALL
:
3030 // call __tls_get_addr --> nop
3031 elfcpp::Swap
<32, true>::writeval(wv
, sparc_nop
);
3038 unsigned int got_type
= (optimized_type
== tls::TLSOPT_TO_IE
3039 ? GOT_TYPE_TLS_OFFSET
3040 : GOT_TYPE_TLS_PAIR
);
3043 gold_assert(gsym
->has_got_offset(got_type
));
3044 value
= gsym
->got_offset(got_type
);
3048 unsigned int r_sym
= elfcpp::elf_r_sym
<size
>(rela
.get_r_info());
3049 gold_assert(object
->local_has_got_offset(r_sym
, got_type
));
3050 value
= object
->local_got_offset(r_sym
, got_type
);
3052 if (optimized_type
== tls::TLSOPT_TO_IE
)
3054 Insntype
* wv
= reinterpret_cast<Insntype
*>(view
);
3059 case elfcpp::R_SPARC_TLS_GD_HI22
:
3060 // TLS_GD_HI22 --> TLS_IE_HI22
3061 Reloc::hi22(view
, value
, addend
);
3064 case elfcpp::R_SPARC_TLS_GD_LO10
:
3065 // TLS_GD_LO10 --> TLS_IE_LO10
3066 Reloc::lo10(view
, value
, addend
);
3069 case elfcpp::R_SPARC_TLS_GD_ADD
:
3070 // add %reg1, %reg2, %reg3 --> ld [%reg1 + %reg2], %reg3
3071 val
= elfcpp::Swap
<32, true>::readval(wv
);
3078 elfcpp::Swap
<32, true>::writeval(wv
, val
);
3081 case elfcpp::R_SPARC_TLS_GD_CALL
:
3082 // The compiler can put the TLS_GD_ADD instruction
3083 // into the delay slot of the call. If so, we need
3084 // to transpose the two instructions so that the
3085 // new sequence works properly.
3087 // The test we use is if the instruction in the
3088 // delay slot is an add with destination register
3090 val
= elfcpp::Swap
<32, true>::readval(wv
+ 1);
3091 if ((val
& 0x81f80000) == 0x80000000
3092 && ((val
>> 25) & 0x1f) == 0x8)
3099 elfcpp::Swap
<32, true>::writeval(wv
, val
);
3102 this->ignore_gd_add_
= true;
3105 // call __tls_get_addr --> add %g7, %o0, %o0
3106 elfcpp::Swap
<32, true>::writeval(wv
, 0x9001c008);
3111 else if (optimized_type
== tls::TLSOPT_NONE
)
3115 case elfcpp::R_SPARC_TLS_GD_HI22
:
3116 Reloc::hi22(view
, value
, addend
);
3118 case elfcpp::R_SPARC_TLS_GD_LO10
:
3119 Reloc::lo10(view
, value
, addend
);
3121 case elfcpp::R_SPARC_TLS_GD_ADD
:
3123 case elfcpp::R_SPARC_TLS_GD_CALL
:
3125 Symbol_value
<size
> symval
;
3126 elfcpp::Elf_Xword value
;
3129 tsym
= target
->tls_get_addr_sym_
;
3131 value
= (target
->plt_section()->address() +
3132 tsym
->plt_offset());
3133 symval
.set_output_value(value
);
3134 Reloc::wdisp30(view
, object
, &symval
, addend
, address
);
3141 gold_error_at_location(relinfo
, relnum
, rela
.get_r_offset(),
3142 _("unsupported reloc %u"),
3146 case elfcpp::R_SPARC_TLS_LDM_HI22
:
3147 case elfcpp::R_SPARC_TLS_LDM_LO10
:
3148 case elfcpp::R_SPARC_TLS_LDM_ADD
:
3149 case elfcpp::R_SPARC_TLS_LDM_CALL
:
3150 if (optimized_type
== tls::TLSOPT_TO_LE
)
3152 Insntype
* wv
= reinterpret_cast<Insntype
*>(view
);
3156 case elfcpp::R_SPARC_TLS_LDM_HI22
:
3157 case elfcpp::R_SPARC_TLS_LDM_LO10
:
3158 case elfcpp::R_SPARC_TLS_LDM_ADD
:
3159 elfcpp::Swap
<32, true>::writeval(wv
, sparc_nop
);
3162 case elfcpp::R_SPARC_TLS_LDM_CALL
:
3163 elfcpp::Swap
<32, true>::writeval(wv
, sparc_mov_g0_o0
);
3168 else if (optimized_type
== tls::TLSOPT_NONE
)
3170 // Relocate the field with the offset of the GOT entry for
3171 // the module index.
3172 unsigned int got_offset
;
3174 got_offset
= target
->got_mod_index_entry(NULL
, NULL
, NULL
);
3177 case elfcpp::R_SPARC_TLS_LDM_HI22
:
3178 Reloc::hi22(view
, got_offset
, addend
);
3180 case elfcpp::R_SPARC_TLS_LDM_LO10
:
3181 Reloc::lo10(view
, got_offset
, addend
);
3183 case elfcpp::R_SPARC_TLS_LDM_ADD
:
3185 case elfcpp::R_SPARC_TLS_LDM_CALL
:
3187 Symbol_value
<size
> symval
;
3188 elfcpp::Elf_Xword value
;
3191 tsym
= target
->tls_get_addr_sym_
;
3193 value
= (target
->plt_section()->address() +
3194 tsym
->plt_offset());
3195 symval
.set_output_value(value
);
3196 Reloc::wdisp30(view
, object
, &symval
, addend
, address
);
3202 gold_error_at_location(relinfo
, relnum
, rela
.get_r_offset(),
3203 _("unsupported reloc %u"),
3207 // These relocs can appear in debugging sections, in which case
3208 // we won't see the TLS_LDM relocs. The local_dynamic_type
3209 // field tells us this.
3210 case elfcpp::R_SPARC_TLS_LDO_HIX22
:
3211 if (optimized_type
== tls::TLSOPT_TO_LE
)
3213 value
-= tls_segment
->memsz();
3214 Reloc::hix22(view
, value
, addend
);
3217 Reloc::ldo_hix22(view
, value
, addend
);
3219 case elfcpp::R_SPARC_TLS_LDO_LOX10
:
3220 if (optimized_type
== tls::TLSOPT_TO_LE
)
3222 value
-= tls_segment
->memsz();
3223 Reloc::lox10(view
, value
, addend
);
3226 Reloc::ldo_lox10(view
, value
, addend
);
3228 case elfcpp::R_SPARC_TLS_LDO_ADD
:
3229 if (optimized_type
== tls::TLSOPT_TO_LE
)
3231 Insntype
* wv
= reinterpret_cast<Insntype
*>(view
);
3234 // add %reg1, %reg2, %reg3 --> add %g7, %reg2, %reg3
3235 val
= elfcpp::Swap
<32, true>::readval(wv
);
3236 val
= (val
& ~0x7c000) | 0x1c000;
3237 elfcpp::Swap
<32, true>::writeval(wv
, val
);
3241 // When optimizing IE --> LE, the only relocation that is handled
3242 // differently is R_SPARC_TLS_IE_LD, it is rewritten from
3243 // 'ld{,x} [rs1 + rs2], rd' into 'mov rs2, rd' or simply a NOP is
3244 // rs2 and rd are the same.
3245 case elfcpp::R_SPARC_TLS_IE_LD
:
3246 case elfcpp::R_SPARC_TLS_IE_LDX
:
3247 if (optimized_type
== tls::TLSOPT_TO_LE
)
3249 Insntype
* wv
= reinterpret_cast<Insntype
*>(view
);
3250 Insntype val
= elfcpp::Swap
<32, true>::readval(wv
);
3251 Insntype rs2
= val
& 0x1f;
3252 Insntype rd
= (val
>> 25) & 0x1f;
3257 val
= sparc_mov
| (val
& 0x3e00001f);
3259 elfcpp::Swap
<32, true>::writeval(wv
, val
);
3263 case elfcpp::R_SPARC_TLS_IE_HI22
:
3264 case elfcpp::R_SPARC_TLS_IE_LO10
:
3265 if (optimized_type
== tls::TLSOPT_TO_LE
)
3267 value
-= tls_segment
->memsz();
3270 case elfcpp::R_SPARC_TLS_IE_HI22
:
3271 // IE_HI22 --> LE_HIX22
3272 Reloc::hix22(view
, value
, addend
);
3274 case elfcpp::R_SPARC_TLS_IE_LO10
:
3275 // IE_LO10 --> LE_LOX10
3276 Reloc::lox10(view
, value
, addend
);
3281 else if (optimized_type
== tls::TLSOPT_NONE
)
3283 // Relocate the field with the offset of the GOT entry for
3284 // the tp-relative offset of the symbol.
3287 gold_assert(gsym
->has_got_offset(GOT_TYPE_TLS_OFFSET
));
3288 value
= gsym
->got_offset(GOT_TYPE_TLS_OFFSET
);
3292 unsigned int r_sym
= elfcpp::elf_r_sym
<size
>(rela
.get_r_info());
3293 gold_assert(object
->local_has_got_offset(r_sym
,
3294 GOT_TYPE_TLS_OFFSET
));
3295 value
= object
->local_got_offset(r_sym
,
3296 GOT_TYPE_TLS_OFFSET
);
3300 case elfcpp::R_SPARC_TLS_IE_HI22
:
3301 Reloc::hi22(view
, value
, addend
);
3303 case elfcpp::R_SPARC_TLS_IE_LO10
:
3304 Reloc::lo10(view
, value
, addend
);
3309 gold_error_at_location(relinfo
, relnum
, rela
.get_r_offset(),
3310 _("unsupported reloc %u"),
3314 case elfcpp::R_SPARC_TLS_IE_ADD
:
3315 // This seems to be mainly so that we can find the addition
3316 // instruction if there is one. There doesn't seem to be any
3317 // actual relocation to apply.
3320 case elfcpp::R_SPARC_TLS_LE_HIX22
:
3321 // If we're creating a shared library, a dynamic relocation will
3322 // have been created for this location, so do not apply it now.
3323 if (!parameters
->options().shared())
3325 value
-= tls_segment
->memsz();
3326 Reloc::hix22(view
, value
, addend
);
3330 case elfcpp::R_SPARC_TLS_LE_LOX10
:
3331 // If we're creating a shared library, a dynamic relocation will
3332 // have been created for this location, so do not apply it now.
3333 if (!parameters
->options().shared())
3335 value
-= tls_segment
->memsz();
3336 Reloc::lox10(view
, value
, addend
);
3342 // Relocate section data.
3344 template<int size
, bool big_endian
>
3346 Target_sparc
<size
, big_endian
>::relocate_section(
3347 const Relocate_info
<size
, big_endian
>* relinfo
,
3348 unsigned int sh_type
,
3349 const unsigned char* prelocs
,
3351 Output_section
* output_section
,
3352 bool needs_special_offset_handling
,
3353 unsigned char* view
,
3354 typename
elfcpp::Elf_types
<size
>::Elf_Addr address
,
3355 section_size_type view_size
,
3356 const Reloc_symbol_changes
* reloc_symbol_changes
)
3358 typedef Target_sparc
<size
, big_endian
> Sparc
;
3359 typedef typename Target_sparc
<size
, big_endian
>::Relocate Sparc_relocate
;
3361 gold_assert(sh_type
== elfcpp::SHT_RELA
);
3363 gold::relocate_section
<size
, big_endian
, Sparc
, elfcpp::SHT_RELA
,
3370 needs_special_offset_handling
,
3374 reloc_symbol_changes
);
3377 // Return the size of a relocation while scanning during a relocatable
3380 template<int size
, bool big_endian
>
3382 Target_sparc
<size
, big_endian
>::Relocatable_size_for_reloc::get_size_for_reloc(
3386 // We are always SHT_RELA, so we should never get here.
3391 // Scan the relocs during a relocatable link.
3393 template<int size
, bool big_endian
>
3395 Target_sparc
<size
, big_endian
>::scan_relocatable_relocs(
3396 Symbol_table
* symtab
,
3398 Sized_relobj_file
<size
, big_endian
>* object
,
3399 unsigned int data_shndx
,
3400 unsigned int sh_type
,
3401 const unsigned char* prelocs
,
3403 Output_section
* output_section
,
3404 bool needs_special_offset_handling
,
3405 size_t local_symbol_count
,
3406 const unsigned char* plocal_symbols
,
3407 Relocatable_relocs
* rr
)
3409 gold_assert(sh_type
== elfcpp::SHT_RELA
);
3411 typedef gold::Default_scan_relocatable_relocs
<elfcpp::SHT_RELA
,
3412 Relocatable_size_for_reloc
> Scan_relocatable_relocs
;
3414 gold::scan_relocatable_relocs
<size
, big_endian
, elfcpp::SHT_RELA
,
3415 Scan_relocatable_relocs
>(
3423 needs_special_offset_handling
,
3429 // Relocate a section during a relocatable link.
3431 template<int size
, bool big_endian
>
3433 Target_sparc
<size
, big_endian
>::relocate_for_relocatable(
3434 const Relocate_info
<size
, big_endian
>* relinfo
,
3435 unsigned int sh_type
,
3436 const unsigned char* prelocs
,
3438 Output_section
* output_section
,
3439 off_t offset_in_output_section
,
3440 const Relocatable_relocs
* rr
,
3441 unsigned char* view
,
3442 typename
elfcpp::Elf_types
<size
>::Elf_Addr view_address
,
3443 section_size_type view_size
,
3444 unsigned char* reloc_view
,
3445 section_size_type reloc_view_size
)
3447 gold_assert(sh_type
== elfcpp::SHT_RELA
);
3449 gold::relocate_for_relocatable
<size
, big_endian
, elfcpp::SHT_RELA
>(
3454 offset_in_output_section
,
3463 // Return the value to use for a dynamic which requires special
3464 // treatment. This is how we support equality comparisons of function
3465 // pointers across shared library boundaries, as described in the
3466 // processor specific ABI supplement.
3468 template<int size
, bool big_endian
>
3470 Target_sparc
<size
, big_endian
>::do_dynsym_value(const Symbol
* gsym
) const
3472 gold_assert(gsym
->is_from_dynobj() && gsym
->has_plt_offset());
3473 return this->plt_section()->address() + gsym
->plt_offset();
3476 // The selector for sparc object files.
3478 template<int size
, bool big_endian
>
3479 class Target_selector_sparc
: public Target_selector
3482 Target_selector_sparc()
3483 : Target_selector(elfcpp::EM_NONE
, size
, big_endian
,
3484 (size
== 64 ? "elf64-sparc" : "elf32-sparc"),
3485 (size
== 64 ? "elf64_sparc" : "elf32_sparc"))
3488 Target
* do_recognize(int machine
, int, int)
3493 if (machine
!= elfcpp::EM_SPARCV9
)
3498 if (machine
!= elfcpp::EM_SPARC
3499 && machine
!= elfcpp::EM_SPARC32PLUS
)
3507 return this->instantiate_target();
3510 Target
* do_instantiate_target()
3511 { return new Target_sparc
<size
, big_endian
>(); }
3514 Target_selector_sparc
<32, true> target_selector_sparc32
;
3515 Target_selector_sparc
<64, true> target_selector_sparc64
;
3517 } // End anonymous namespace.