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elfcpp/
[deliverable/binutils-gdb.git] / gold / sparc.cc
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f5314dd5
DM		 1// sparc.cc -- sparc target support for gold.
2
8c2bf391 3// Copyright 2008, 2009, 2010, 2011, 2012 Free Software Foundation, Inc.
f5314dd5
DM		 4// Written by David S. Miller <davem@davemloft.net>.
5
6// This file is part of gold.
7
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.
12
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.
17
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.
22
23#include "gold.h"
24
25#include <cstdlib>
26#include <cstdio>
27#include <cstring>
28
29#include "elfcpp.h"
30#include "parameters.h"
31#include "reloc.h"
32#include "sparc.h"
33#include "object.h"
34#include "symtab.h"
35#include "layout.h"
36#include "output.h"
12c0daef 37#include "copy-relocs.h"
f5314dd5
DM		 38#include "target.h"
39#include "target-reloc.h"
40#include "target-select.h"
41#include "tls.h"
42#include "errors.h"
f345227a 43#include "gc.h"
f5314dd5
DM		 44
45namespace
46{
47
48using namespace gold;
49
50template<int size, bool big_endian>
51class Output_data_plt_sparc;
52
53template<int size, bool big_endian>
54class Target_sparc : public Sized_target<size, big_endian>
55{
56 public:
57 typedef Output_data_reloc<elfcpp::SHT_RELA, true, size, big_endian> Reloc_section;
58
59 Target_sparc()
60 : Sized_target<size, big_endian>(&sparc_info),
8c2bf391 61 got_(NULL), plt_(NULL), rela_dyn_(NULL), rela_ifunc_(NULL),
12c0daef
ILT		 62 copy_relocs_(elfcpp::R_SPARC_COPY), dynbss_(NULL),
63 got_mod_index_offset_(-1U), tls_get_addr_sym_(NULL)
f5314dd5
DM		 64 {
65 }
66
6d03d481
ST		 67 // Process the relocations to determine unreferenced sections for
68 // garbage collection.
69 void
ad0f2072 70 gc_process_relocs(Symbol_table* symtab,
6d03d481 71 Layout* layout,
6fa2a40b 72 Sized_relobj_file<size, big_endian>* object,
6d03d481
ST		 73 unsigned int data_shndx,
74 unsigned int sh_type,
75 const unsigned char* prelocs,
76 size_t reloc_count,
77 Output_section* output_section,
78 bool needs_special_offset_handling,
79 size_t local_symbol_count,
80 const unsigned char* plocal_symbols);
81
f5314dd5
DM		 82 // Scan the relocations to look for symbol adjustments.
83 void
ad0f2072 84 scan_relocs(Symbol_table* symtab,
f5314dd5 85 Layout* layout,
6fa2a40b 86 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 87 unsigned int data_shndx,
88 unsigned int sh_type,
89 const unsigned char* prelocs,
90 size_t reloc_count,
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.
96 void
f59f41f3 97 do_finalize_sections(Layout*, const Input_objects*, Symbol_table*);
f5314dd5
DM		 98
99 // Return the value to use for a dynamic which requires special
100 // treatment.
101 uint64_t
102 do_dynsym_value(const Symbol*) const;
103
104 // Relocate a section.
105 void
106 relocate_section(const Relocate_info<size, big_endian>*,
107 unsigned int sh_type,
108 const unsigned char* prelocs,
109 size_t reloc_count,
110 Output_section* output_section,
111 bool needs_special_offset_handling,
112 unsigned char* view,
113 typename elfcpp::Elf_types<size>::Elf_Addr view_address,
364c7fa5
ILT		 114 section_size_type view_size,
115 const Reloc_symbol_changes*);
f5314dd5
DM		 116
117 // Scan the relocs during a relocatable link.
118 void
ad0f2072 119 scan_relocatable_relocs(Symbol_table* symtab,
f5314dd5 120 Layout* layout,
6fa2a40b 121 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 122 unsigned int data_shndx,
123 unsigned int sh_type,
124 const unsigned char* prelocs,
125 size_t reloc_count,
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*);
131
132 // Relocate a section during a relocatable link.
133 void
134 relocate_for_relocatable(const Relocate_info<size, big_endian>*,
135 unsigned int sh_type,
136 const unsigned char* prelocs,
137 size_t reloc_count,
138 Output_section* output_section,
139 off_t offset_in_output_section,
140 const Relocatable_relocs*,
141 unsigned char* view,
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.
147 bool
9c2d0ef9 148 do_is_defined_by_abi(const Symbol* sym) const
f5314dd5
DM		 149 {
150 // XXX Really need to support this better...
151 if (sym->type() == elfcpp::STT_SPARC_REGISTER)
152 return 1;
153
154 return strcmp(sym->name(), "___tls_get_addr") == 0;
155 }
156
8c2bf391
DM		 157 // Return the PLT address to use for a global symbol.
158 uint64_t
159 do_plt_address_for_global(const Symbol* gsym) const
160 { return this->plt_section()->address_for_global(gsym); }
161
162 uint64_t
163 do_plt_address_for_local(const Relobj* relobj, unsigned int symndx) const
164 { return this->plt_section()->address_for_local(relobj, symndx); }
165
9efe6174
ILT		 166 // Return whether there is a GOT section.
167 bool
168 has_got_section() const
169 { return this->got_ != NULL; }
170
f5314dd5
DM		 171 // Return the size of the GOT section.
172 section_size_type
0e70b911 173 got_size() const
f5314dd5
DM		 174 {
175 gold_assert(this->got_ != NULL);
176 return this->got_->data_size();
177 }
178
0e70b911
CC		 179 // Return the number of entries in the GOT.
180 unsigned int
181 got_entry_count() const
182 {
183 if (this->got_ == NULL)
184 return 0;
185 return this->got_size() / (size / 8);
186 }
187
2a1079e8
DM		 188 // Return the address of the GOT.
189 uint64_t
190 got_address() const
191 {
192 if (this->got_ == NULL)
193 return 0;
194 return this->got_->address();
195 }
196
0e70b911
CC		 197 // Return the number of entries in the PLT.
198 unsigned int
199 plt_entry_count() const;
200
201 // Return the offset of the first non-reserved PLT entry.
202 unsigned int
203 first_plt_entry_offset() const;
204
205 // Return the size of each PLT entry.
206 unsigned int
207 plt_entry_size() const;
208
f5314dd5
DM		 209 private:
210
211 // The class which scans relocations.
32b769e1 212 class Scan
f5314dd5 213 {
32b769e1
DM		 214 public:
215 Scan()
216 : issued_non_pic_error_(false)
217 { }
218
95a2c8d6
RS		 219 static inline int
220 get_reference_flags(unsigned int r_type);
221
f5314dd5 222 inline void
ad0f2072 223 local(Symbol_table* symtab, Layout* layout, Target_sparc* target,
6fa2a40b 224 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 225 unsigned int data_shndx,
226 Output_section* output_section,
227 const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
228 const elfcpp::Sym<size, big_endian>& lsym);
229
230 inline void
ad0f2072 231 global(Symbol_table* symtab, Layout* layout, Target_sparc* target,
6fa2a40b 232 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 233 unsigned int data_shndx,
234 Output_section* output_section,
235 const elfcpp::Rela<size, big_endian>& reloc, unsigned int r_type,
236 Symbol* gsym);
237
21bb3914
ST		 238 inline bool
239 local_reloc_may_be_function_pointer(Symbol_table* , Layout* ,
240 Target_sparc* ,
6fa2a40b 241 Sized_relobj_file<size, big_endian>* ,
21bb3914
ST		 242 unsigned int ,
243 Output_section* ,
244 const elfcpp::Rela<size, big_endian>& ,
245 unsigned int ,
246 const elfcpp::Sym<size, big_endian>&)
247 { return false; }
248
249 inline bool
250 global_reloc_may_be_function_pointer(Symbol_table* , Layout* ,
251 Target_sparc* ,
6fa2a40b 252 Sized_relobj_file<size, big_endian>* ,
21bb3914
ST		 253 unsigned int ,
254 Output_section* ,
255 const elfcpp::Rela<size,
256 big_endian>& ,
257 unsigned int , Symbol*)
258 { return false; }
259
260
32b769e1 261 private:
f5314dd5 262 static void
6fa2a40b 263 unsupported_reloc_local(Sized_relobj_file<size, big_endian>*,
f5314dd5
DM		 264 unsigned int r_type);
265
266 static void
6fa2a40b 267 unsupported_reloc_global(Sized_relobj_file<size, big_endian>*,
f5314dd5
DM		 268 unsigned int r_type, Symbol*);
269
270 static void
271 generate_tls_call(Symbol_table* symtab, Layout* layout,
272 Target_sparc* target);
32b769e1
DM		 273
274 void
275 check_non_pic(Relobj*, unsigned int r_type);
276
8c2bf391
DM		 277 bool
278 reloc_needs_plt_for_ifunc(Sized_relobj_file<size, big_endian>*,
279 unsigned int r_type);
280
32b769e1
DM		 281 // Whether we have issued an error about a non-PIC compilation.
282 bool issued_non_pic_error_;
f5314dd5
DM		 283 };
284
285 // The class which implements relocation.
286 class Relocate
287 {
288 public:
289 Relocate()
abd242a9 290 : ignore_gd_add_(false), reloc_adjust_addr_(NULL)
f5314dd5
DM		 291 { }
292
293 ~Relocate()
294 {
295 if (this->ignore_gd_add_)
296 {
297 // FIXME: This needs to specify the location somehow.
298 gold_error(_("missing expected TLS relocation"));
299 }
300 }
301
302 // Do a relocation. Return false if the caller should not issue
303 // any warnings about this relocation.
304 inline bool
305 relocate(const Relocate_info<size, big_endian>*, Target_sparc*,
031cdbed
ILT		 306 Output_section*, size_t relnum,
307 const elfcpp::Rela<size, big_endian>&,
f5314dd5
DM		 308 unsigned int r_type, const Sized_symbol<size>*,
309 const Symbol_value<size>*,
310 unsigned char*,
311 typename elfcpp::Elf_types<size>::Elf_Addr,
312 section_size_type);
313
314 private:
315 // Do a TLS relocation.
316 inline void
317 relocate_tls(const Relocate_info<size, big_endian>*, Target_sparc* target,
318 size_t relnum, const elfcpp::Rela<size, big_endian>&,
319 unsigned int r_type, const Sized_symbol<size>*,
320 const Symbol_value<size>*,
321 unsigned char*,
322 typename elfcpp::Elf_types<size>::Elf_Addr,
323 section_size_type);
324
325 // Ignore the next relocation which should be R_SPARC_TLS_GD_ADD
326 bool ignore_gd_add_;
abd242a9
DM		 327
328 // If we hit a reloc at this view address, adjust it back by 4 bytes.
329 unsigned char *reloc_adjust_addr_;
f5314dd5
DM		 330 };
331
332 // A class which returns the size required for a relocation type,
333 // used while scanning relocs during a relocatable link.
334 class Relocatable_size_for_reloc
335 {
336 public:
337 unsigned int
338 get_size_for_reloc(unsigned int, Relobj*);
339 };
340
341 // Get the GOT section, creating it if necessary.
342 Output_data_got<size, big_endian>*
343 got_section(Symbol_table*, Layout*);
344
8c2bf391
DM		 345 // Create the PLT section.
346 void
347 make_plt_section(Symbol_table* symtab, Layout* layout);
348
f5314dd5
DM		 349 // Create a PLT entry for a global symbol.
350 void
351 make_plt_entry(Symbol_table*, Layout*, Symbol*);
352
8c2bf391
DM		 353 // Create a PLT entry for a local STT_GNU_IFUNC symbol.
354 void
355 make_local_ifunc_plt_entry(Symbol_table*, Layout*,
356 Sized_relobj_file<size, big_endian>* relobj,
357 unsigned int local_sym_index);
358
f5314dd5
DM		 359 // Create a GOT entry for the TLS module index.
360 unsigned int
361 got_mod_index_entry(Symbol_table* symtab, Layout* layout,
6fa2a40b 362 Sized_relobj_file<size, big_endian>* object);
f5314dd5
DM		 363
364 // Return the gsym for "__tls_get_addr". Cache if not already
365 // cached.
366 Symbol*
367 tls_get_addr_sym(Symbol_table* symtab)
368 {
369 if (!this->tls_get_addr_sym_)
370 this->tls_get_addr_sym_ = symtab->lookup("__tls_get_addr", NULL);
371 gold_assert(this->tls_get_addr_sym_);
372 return this->tls_get_addr_sym_;
373 }
374
375 // Get the PLT section.
8c2bf391 376 Output_data_plt_sparc<size, big_endian>*
f5314dd5
DM		 377 plt_section() const
378 {
379 gold_assert(this->plt_ != NULL);
380 return this->plt_;
381 }
382
383 // Get the dynamic reloc section, creating it if necessary.
384 Reloc_section*
385 rela_dyn_section(Layout*);
386
8c2bf391
DM		 387 // Get the section to use for IFUNC relocations.
388 Reloc_section*
389 rela_ifunc_section(Layout*);
390
f5314dd5
DM		 391 // Copy a relocation against a global symbol.
392 void
ef9beddf 393 copy_reloc(Symbol_table* symtab, Layout* layout,
6fa2a40b 394 Sized_relobj_file<size, big_endian>* object,
12c0daef
ILT		 395 unsigned int shndx, Output_section* output_section,
396 Symbol* sym, const elfcpp::Rela<size, big_endian>& reloc)
397 {
398 this->copy_relocs_.copy_reloc(symtab, layout,
399 symtab->get_sized_symbol<size>(sym),
400 object, shndx, output_section,
401 reloc, this->rela_dyn_section(layout));
402 }
f5314dd5
DM		 403
404 // Information about this specific target which we pass to the
405 // general Target structure.
406 static Target::Target_info sparc_info;
407
408 // The types of GOT entries needed for this platform.
0e70b911
CC		 409 // These values are exposed to the ABI in an incremental link.
410 // Do not renumber existing values without changing the version
411 // number of the .gnu_incremental_inputs section.
f5314dd5
DM		 412 enum Got_type
413 {
414 GOT_TYPE_STANDARD = 0, // GOT entry for a regular symbol
415 GOT_TYPE_TLS_OFFSET = 1, // GOT entry for TLS offset
416 GOT_TYPE_TLS_PAIR = 2, // GOT entry for TLS module/offset pair
417 };
418
419 // The GOT section.
420 Output_data_got<size, big_endian>* got_;
421 // The PLT section.
422 Output_data_plt_sparc<size, big_endian>* plt_;
423 // The dynamic reloc section.
424 Reloc_section* rela_dyn_;
8c2bf391
DM		 425 // The section to use for IFUNC relocs.
426 Reloc_section* rela_ifunc_;
f5314dd5 427 // Relocs saved to avoid a COPY reloc.
12c0daef 428 Copy_relocs<elfcpp::SHT_RELA, size, big_endian> copy_relocs_;
f5314dd5
DM		 429 // Space for variables copied with a COPY reloc.
430 Output_data_space* dynbss_;
431 // Offset of the GOT entry for the TLS module index;
432 unsigned int got_mod_index_offset_;
433 // Cached pointer to __tls_get_addr symbol
434 Symbol* tls_get_addr_sym_;
435};
436
437template<>
438Target::Target_info Target_sparc<32, true>::sparc_info =
439{
440 32, // size
441 true, // is_big_endian
442 elfcpp::EM_SPARC, // machine_code
443 false, // has_make_symbol
444 false, // has_resolve
445 false, // has_code_fill
446 true, // is_default_stack_executable
b3ce541e 447 false, // can_icf_inline_merge_sections
f5314dd5
DM		 448 '\0', // wrap_char
449 "/usr/lib/ld.so.1", // dynamic_linker
450 0x00010000, // default_text_segment_address
451 64 * 1024, // abi_pagesize (overridable by -z max-page-size)
8a5e3e08
ILT		 452 8 * 1024, // common_pagesize (overridable by -z common-page-size)
453 elfcpp::SHN_UNDEF, // small_common_shndx
454 elfcpp::SHN_UNDEF, // large_common_shndx
455 0, // small_common_section_flags
05a352e6
DK		 456 0, // large_common_section_flags
457 NULL, // attributes_section
458 NULL // attributes_vendor
f5314dd5
DM		 459};
460
461template<>
462Target::Target_info Target_sparc<64, true>::sparc_info =
463{
464 64, // size
465 true, // is_big_endian
466 elfcpp::EM_SPARCV9, // machine_code
467 false, // has_make_symbol
468 false, // has_resolve
469 false, // has_code_fill
470 true, // is_default_stack_executable
b3ce541e 471 false, // can_icf_inline_merge_sections
f5314dd5
DM		 472 '\0', // wrap_char
473 "/usr/lib/sparcv9/ld.so.1", // dynamic_linker
474 0x100000, // default_text_segment_address
475 64 * 1024, // abi_pagesize (overridable by -z max-page-size)
8a5e3e08
ILT		 476 8 * 1024, // common_pagesize (overridable by -z common-page-size)
477 elfcpp::SHN_UNDEF, // small_common_shndx
478 elfcpp::SHN_UNDEF, // large_common_shndx
479 0, // small_common_section_flags
05a352e6
DK		 480 0, // large_common_section_flags
481 NULL, // attributes_section
482 NULL // attributes_vendor
f5314dd5
DM		 483};
484
485// We have to take care here, even when operating in little-endian
486// mode, sparc instructions are still big endian.
487template<int size, bool big_endian>
488class Sparc_relocate_functions
489{
490private:
491 // Do a simple relocation with the addend in the relocation.
492 template<int valsize>
493 static inline void
494 rela(unsigned char* view,
495 unsigned int right_shift,
496 typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask,
2ea97941 497 typename elfcpp::Swap<size, big_endian>::Valtype value,
f5314dd5
DM		 498 typename elfcpp::Swap<size, big_endian>::Valtype addend)
499 {
500 typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
501 Valtype* wv = reinterpret_cast<Valtype*>(view);
502 Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv);
2ea97941 503 Valtype reloc = ((value + addend) >> right_shift);
f5314dd5
DM		 504
505 val &= ~dst_mask;
506 reloc &= dst_mask;
507
508 elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc);
509 }
510
511 // Do a simple relocation using a symbol value with the addend in
512 // the relocation.
513 template<int valsize>
514 static inline void
515 rela(unsigned char* view,
516 unsigned int right_shift,
517 typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask,
6fa2a40b 518 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 519 const Symbol_value<size>* psymval,
520 typename elfcpp::Swap<valsize, big_endian>::Valtype addend)
521 {
522 typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
523 Valtype* wv = reinterpret_cast<Valtype*>(view);
524 Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv);
525 Valtype reloc = (psymval->value(object, addend) >> right_shift);
526
527 val &= ~dst_mask;
528 reloc &= dst_mask;
529
530 elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc);
531 }
532
533 // Do a simple relocation using a symbol value with the addend in
534 // the relocation, unaligned.
535 template<int valsize>
536 static inline void
537 rela_ua(unsigned char* view,
538 unsigned int right_shift, elfcpp::Elf_Xword dst_mask,
6fa2a40b 539 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 540 const Symbol_value<size>* psymval,
541 typename elfcpp::Swap<size, big_endian>::Valtype addend)
542 {
543 typedef typename elfcpp::Swap_unaligned<valsize,
544 big_endian>::Valtype Valtype;
545 unsigned char* wv = view;
546 Valtype val = elfcpp::Swap_unaligned<valsize, big_endian>::readval(wv);
547 Valtype reloc = (psymval->value(object, addend) >> right_shift);
548
549 val &= ~dst_mask;
550 reloc &= dst_mask;
551
552 elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, val | reloc);
553 }
554
555 // Do a simple PC relative relocation with a Symbol_value with the
556 // addend in the relocation.
557 template<int valsize>
558 static inline void
559 pcrela(unsigned char* view,
560 unsigned int right_shift,
561 typename elfcpp::Elf_types<valsize>::Elf_Addr dst_mask,
6fa2a40b 562 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 563 const Symbol_value<size>* psymval,
564 typename elfcpp::Swap<size, big_endian>::Valtype addend,
565 typename elfcpp::Elf_types<size>::Elf_Addr address)
566 {
567 typedef typename elfcpp::Swap<valsize, big_endian>::Valtype Valtype;
568 Valtype* wv = reinterpret_cast<Valtype*>(view);
569 Valtype val = elfcpp::Swap<valsize, big_endian>::readval(wv);
570 Valtype reloc = ((psymval->value(object, addend) - address)
571 >> right_shift);
572
573 val &= ~dst_mask;
574 reloc &= dst_mask;
575
576 elfcpp::Swap<valsize, big_endian>::writeval(wv, val | reloc);
577 }
578
579 template<int valsize>
580 static inline void
581 pcrela_unaligned(unsigned char* view,
6fa2a40b 582 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 583 const Symbol_value<size>* psymval,
584 typename elfcpp::Swap<size, big_endian>::Valtype addend,
585 typename elfcpp::Elf_types<size>::Elf_Addr address)
586 {
587 typedef typename elfcpp::Swap_unaligned<valsize,
588 big_endian>::Valtype Valtype;
589 unsigned char* wv = view;
590 Valtype reloc = (psymval->value(object, addend) - address);
591
592 elfcpp::Swap_unaligned<valsize, big_endian>::writeval(wv, reloc);
593 }
594
595 typedef Sparc_relocate_functions<size, big_endian> This;
596 typedef Sparc_relocate_functions<size, true> This_insn;
597
598public:
599 // R_SPARC_WDISP30: (Symbol + Addend - Address) >> 2
600 static inline void
601 wdisp30(unsigned char* view,
6fa2a40b 602 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 603 const Symbol_value<size>* psymval,
604 typename elfcpp::Elf_types<size>::Elf_Addr addend,
605 typename elfcpp::Elf_types<size>::Elf_Addr address)
606 {
607 This_insn::template pcrela<32>(view, 2, 0x3fffffff, object,
608 psymval, addend, address);
609 }
610
611 // R_SPARC_WDISP22: (Symbol + Addend - Address) >> 2
612 static inline void
613 wdisp22(unsigned char* view,
6fa2a40b 614 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 615 const Symbol_value<size>* psymval,
616 typename elfcpp::Elf_types<size>::Elf_Addr addend,
617 typename elfcpp::Elf_types<size>::Elf_Addr address)
618 {
619 This_insn::template pcrela<32>(view, 2, 0x003fffff, object,
620 psymval, addend, address);
621 }
622
623 // R_SPARC_WDISP19: (Symbol + Addend - Address) >> 2
624 static inline void
625 wdisp19(unsigned char* view,
6fa2a40b 626 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 627 const Symbol_value<size>* psymval,
628 typename elfcpp::Elf_types<size>::Elf_Addr addend,
629 typename elfcpp::Elf_types<size>::Elf_Addr address)
630 {
631 This_insn::template pcrela<32>(view, 2, 0x0007ffff, object,
632 psymval, addend, address);
633 }
634
635 // R_SPARC_WDISP16: (Symbol + Addend - Address) >> 2
636 static inline void
637 wdisp16(unsigned char* view,
6fa2a40b 638 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 639 const Symbol_value<size>* psymval,
640 typename elfcpp::Elf_types<size>::Elf_Addr addend,
641 typename elfcpp::Elf_types<size>::Elf_Addr address)
642 {
643 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
644 Valtype* wv = reinterpret_cast<Valtype*>(view);
645 Valtype val = elfcpp::Swap<32, true>::readval(wv);
646 Valtype reloc = ((psymval->value(object, addend) - address)
647 >> 2);
648
649 // The relocation value is split between the low 14 bits,
650 // and bits 20-21.
651 val &= ~((0x3 << 20) | 0x3fff);
652 reloc = (((reloc & 0xc000) << (20 - 14))
653 | (reloc & 0x3ffff));
654
655 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
656 }
657
2615994e
DM		 658 // R_SPARC_WDISP10: (Symbol + Addend - Address) >> 2
659 static inline void
660 wdisp10(unsigned char* view,
661 const Sized_relobj_file<size, big_endian>* object,
662 const Symbol_value<size>* psymval,
663 typename elfcpp::Elf_types<size>::Elf_Addr addend,
664 typename elfcpp::Elf_types<size>::Elf_Addr address)
665 {
666 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
667 Valtype* wv = reinterpret_cast<Valtype*>(view);
668 Valtype val = elfcpp::Swap<32, true>::readval(wv);
669 Valtype reloc = ((psymval->value(object, addend) - address)
670 >> 2);
671
672 // The relocation value is split between the low bits 5-12,
673 // and high bits 19-20.
674 val &= ~((0x3 << 19) | (0xff << 5));
675 reloc = (((reloc & 0x300) << (19 - 8))
676 | ((reloc & 0xff) << (5 - 0)));
677
678 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
679 }
680
f5314dd5
DM		 681 // R_SPARC_PC22: (Symbol + Addend - Address) >> 10
682 static inline void
683 pc22(unsigned char* view,
6fa2a40b 684 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 685 const Symbol_value<size>* psymval,
686 typename elfcpp::Elf_types<size>::Elf_Addr addend,
687 typename elfcpp::Elf_types<size>::Elf_Addr address)
688 {
689 This_insn::template pcrela<32>(view, 10, 0x003fffff, object,
690 psymval, addend, address);
691 }
692
693 // R_SPARC_PC10: (Symbol + Addend - Address) & 0x3ff
694 static inline void
695 pc10(unsigned char* view,
6fa2a40b 696 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 697 const Symbol_value<size>* psymval,
698 typename elfcpp::Elf_types<size>::Elf_Addr addend,
699 typename elfcpp::Elf_types<size>::Elf_Addr address)
700 {
701 This_insn::template pcrela<32>(view, 0, 0x000003ff, object,
702 psymval, addend, address);
703 }
704
705 // R_SPARC_HI22: (Symbol + Addend) >> 10
706 static inline void
707 hi22(unsigned char* view,
2ea97941 708 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 709 typename elfcpp::Elf_types<size>::Elf_Addr addend)
710 {
2ea97941 711 This_insn::template rela<32>(view, 10, 0x003fffff, value, addend);
f5314dd5
DM		 712 }
713
714 // R_SPARC_HI22: (Symbol + Addend) >> 10
715 static inline void
716 hi22(unsigned char* view,
6fa2a40b 717 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 718 const Symbol_value<size>* psymval,
719 typename elfcpp::Elf_types<size>::Elf_Addr addend)
720 {
721 This_insn::template rela<32>(view, 10, 0x003fffff, object, psymval, addend);
722 }
723
724 // R_SPARC_PCPLT22: (Symbol + Addend - Address) >> 10
725 static inline void
726 pcplt22(unsigned char* view,
6fa2a40b 727 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 728 const Symbol_value<size>* psymval,
729 typename elfcpp::Elf_types<size>::Elf_Addr addend,
730 typename elfcpp::Elf_types<size>::Elf_Addr address)
731 {
732 This_insn::template pcrela<32>(view, 10, 0x003fffff, object,
733 psymval, addend, address);
734 }
735
736 // R_SPARC_LO10: (Symbol + Addend) & 0x3ff
737 static inline void
738 lo10(unsigned char* view,
2ea97941 739 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 740 typename elfcpp::Elf_types<size>::Elf_Addr addend)
741 {
2ea97941 742 This_insn::template rela<32>(view, 0, 0x000003ff, value, addend);
f5314dd5
DM		 743 }
744
745 // R_SPARC_LO10: (Symbol + Addend) & 0x3ff
746 static inline void
747 lo10(unsigned char* view,
6fa2a40b 748 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 749 const Symbol_value<size>* psymval,
750 typename elfcpp::Elf_types<size>::Elf_Addr addend)
751 {
752 This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend);
753 }
754
755 // R_SPARC_LO10: (Symbol + Addend) & 0x3ff
756 static inline void
757 lo10(unsigned char* view,
6fa2a40b 758 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 759 const Symbol_value<size>* psymval,
760 typename elfcpp::Elf_types<size>::Elf_Addr addend,
761 typename elfcpp::Elf_types<size>::Elf_Addr address)
762 {
763 This_insn::template pcrela<32>(view, 0, 0x000003ff, object,
764 psymval, addend, address);
765 }
766
767 // R_SPARC_OLO10: ((Symbol + Addend) & 0x3ff) + Addend2
768 static inline void
769 olo10(unsigned char* view,
6fa2a40b 770 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 771 const Symbol_value<size>* psymval,
772 typename elfcpp::Elf_types<size>::Elf_Addr addend,
773 typename elfcpp::Elf_types<size>::Elf_Addr addend2)
774 {
775 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
776 Valtype* wv = reinterpret_cast<Valtype*>(view);
777 Valtype val = elfcpp::Swap<32, true>::readval(wv);
778 Valtype reloc = psymval->value(object, addend);
779
780 val &= ~0x1fff;
781 reloc &= 0x3ff;
782 reloc += addend2;
783 reloc &= 0x1fff;
784
785 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
786 }
787
788 // R_SPARC_22: (Symbol + Addend)
789 static inline void
790 rela32_22(unsigned char* view,
6fa2a40b 791 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 792 const Symbol_value<size>* psymval,
793 typename elfcpp::Elf_types<size>::Elf_Addr addend)
794 {
795 This_insn::template rela<32>(view, 0, 0x003fffff, object, psymval, addend);
796 }
797
798 // R_SPARC_13: (Symbol + Addend)
799 static inline void
800 rela32_13(unsigned char* view,
2ea97941 801 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 802 typename elfcpp::Elf_types<size>::Elf_Addr addend)
803 {
2ea97941 804 This_insn::template rela<32>(view, 0, 0x00001fff, value, addend);
f5314dd5
DM		 805 }
806
807 // R_SPARC_13: (Symbol + Addend)
808 static inline void
809 rela32_13(unsigned char* view,
6fa2a40b 810 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 811 const Symbol_value<size>* psymval,
812 typename elfcpp::Elf_types<size>::Elf_Addr addend)
813 {
814 This_insn::template rela<32>(view, 0, 0x00001fff, object, psymval, addend);
815 }
816
817 // R_SPARC_UA16: (Symbol + Addend)
818 static inline void
819 ua16(unsigned char* view,
6fa2a40b 820 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 821 const Symbol_value<size>* psymval,
822 typename elfcpp::Elf_types<size>::Elf_Addr addend)
823 {
824 This::template rela_ua<16>(view, 0, 0xffff, object, psymval, addend);
825 }
826
827 // R_SPARC_UA32: (Symbol + Addend)
828 static inline void
829 ua32(unsigned char* view,
6fa2a40b 830 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 831 const Symbol_value<size>* psymval,
832 typename elfcpp::Elf_types<size>::Elf_Addr addend)
833 {
834 This::template rela_ua<32>(view, 0, 0xffffffff, object, psymval, addend);
835 }
836
837 // R_SPARC_UA64: (Symbol + Addend)
838 static inline void
839 ua64(unsigned char* view,
6fa2a40b 840 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 841 const Symbol_value<size>* psymval,
842 typename elfcpp::Elf_types<size>::Elf_Addr addend)
843 {
844 This::template rela_ua<64>(view, 0, ~(elfcpp::Elf_Xword) 0,
845 object, psymval, addend);
846 }
847
848 // R_SPARC_DISP8: (Symbol + Addend - Address)
849 static inline void
850 disp8(unsigned char* view,
6fa2a40b 851 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 852 const Symbol_value<size>* psymval,
853 typename elfcpp::Elf_types<size>::Elf_Addr addend,
854 typename elfcpp::Elf_types<size>::Elf_Addr address)
855 {
856 This::template pcrela_unaligned<8>(view, object, psymval,
857 addend, address);
858 }
859
860 // R_SPARC_DISP16: (Symbol + Addend - Address)
861 static inline void
862 disp16(unsigned char* view,
6fa2a40b 863 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 864 const Symbol_value<size>* psymval,
865 typename elfcpp::Elf_types<size>::Elf_Addr addend,
866 typename elfcpp::Elf_types<size>::Elf_Addr address)
867 {
868 This::template pcrela_unaligned<16>(view, object, psymval,
869 addend, address);
870 }
871
872 // R_SPARC_DISP32: (Symbol + Addend - Address)
873 static inline void
874 disp32(unsigned char* view,
6fa2a40b 875 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 876 const Symbol_value<size>* psymval,
877 typename elfcpp::Elf_types<size>::Elf_Addr addend,
878 typename elfcpp::Elf_types<size>::Elf_Addr address)
879 {
880 This::template pcrela_unaligned<32>(view, object, psymval,
881 addend, address);
882 }
883
884 // R_SPARC_DISP64: (Symbol + Addend - Address)
885 static inline void
886 disp64(unsigned char* view,
6fa2a40b 887 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 888 const Symbol_value<size>* psymval,
889 elfcpp::Elf_Xword addend,
890 typename elfcpp::Elf_types<size>::Elf_Addr address)
891 {
892 This::template pcrela_unaligned<64>(view, object, psymval,
893 addend, address);
894 }
895
2615994e
DM		 896 // R_SPARC_H34: (Symbol + Addend) >> 12
897 static inline void
898 h34(unsigned char* view,
899 const Sized_relobj_file<size, big_endian>* object,
900 const Symbol_value<size>* psymval,
901 typename elfcpp::Elf_types<size>::Elf_Addr addend)
902 {
903 This_insn::template rela<32>(view, 12, 0x003fffff, object, psymval, addend);
904 }
905
f5314dd5
DM		 906 // R_SPARC_H44: (Symbol + Addend) >> 22
907 static inline void
908 h44(unsigned char* view,
6fa2a40b 909 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 910 const Symbol_value<size>* psymval,
911 typename elfcpp::Elf_types<size>::Elf_Addr addend)
912 {
913 This_insn::template rela<32>(view, 22, 0x003fffff, object, psymval, addend);
914 }
915
916 // R_SPARC_M44: ((Symbol + Addend) >> 12) & 0x3ff
917 static inline void
918 m44(unsigned char* view,
6fa2a40b 919 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 920 const Symbol_value<size>* psymval,
921 typename elfcpp::Elf_types<size>::Elf_Addr addend)
922 {
923 This_insn::template rela<32>(view, 12, 0x000003ff, object, psymval, addend);
924 }
925
926 // R_SPARC_L44: (Symbol + Addend) & 0xfff
927 static inline void
928 l44(unsigned char* view,
6fa2a40b 929 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 930 const Symbol_value<size>* psymval,
931 typename elfcpp::Elf_types<size>::Elf_Addr addend)
932 {
933 This_insn::template rela<32>(view, 0, 0x00000fff, object, psymval, addend);
934 }
935
936 // R_SPARC_HH22: (Symbol + Addend) >> 42
937 static inline void
938 hh22(unsigned char* view,
6fa2a40b 939 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 940 const Symbol_value<size>* psymval,
941 typename elfcpp::Elf_types<size>::Elf_Addr addend)
942 {
943 This_insn::template rela<32>(view, 42, 0x003fffff, object, psymval, addend);
944 }
945
946 // R_SPARC_PC_HH22: (Symbol + Addend - Address) >> 42
947 static inline void
948 pc_hh22(unsigned char* view,
6fa2a40b 949 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 950 const Symbol_value<size>* psymval,
951 typename elfcpp::Elf_types<size>::Elf_Addr addend,
952 typename elfcpp::Elf_types<size>::Elf_Addr address)
953 {
954 This_insn::template pcrela<32>(view, 42, 0x003fffff, object,
955 psymval, addend, address);
956 }
957
958 // R_SPARC_HM10: ((Symbol + Addend) >> 32) & 0x3ff
959 static inline void
960 hm10(unsigned char* view,
6fa2a40b 961 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 962 const Symbol_value<size>* psymval,
963 typename elfcpp::Elf_types<size>::Elf_Addr addend)
964 {
965 This_insn::template rela<32>(view, 32, 0x000003ff, object, psymval, addend);
966 }
967
968 // R_SPARC_PC_HM10: ((Symbol + Addend - Address) >> 32) & 0x3ff
969 static inline void
970 pc_hm10(unsigned char* view,
6fa2a40b 971 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 972 const Symbol_value<size>* psymval,
973 typename elfcpp::Elf_types<size>::Elf_Addr addend,
974 typename elfcpp::Elf_types<size>::Elf_Addr address)
975 {
976 This_insn::template pcrela<32>(view, 32, 0x000003ff, object,
977 psymval, addend, address);
978 }
979
980 // R_SPARC_11: (Symbol + Addend)
981 static inline void
982 rela32_11(unsigned char* view,
6fa2a40b 983 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 984 const Symbol_value<size>* psymval,
985 typename elfcpp::Elf_types<size>::Elf_Addr addend)
986 {
987 This_insn::template rela<32>(view, 0, 0x000007ff, object, psymval, addend);
988 }
989
990 // R_SPARC_10: (Symbol + Addend)
991 static inline void
992 rela32_10(unsigned char* view,
6fa2a40b 993 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 994 const Symbol_value<size>* psymval,
995 typename elfcpp::Elf_types<size>::Elf_Addr addend)
996 {
997 This_insn::template rela<32>(view, 0, 0x000003ff, object, psymval, addend);
998 }
999
1000 // R_SPARC_7: (Symbol + Addend)
1001 static inline void
1002 rela32_7(unsigned char* view,
6fa2a40b 1003 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 1004 const Symbol_value<size>* psymval,
1005 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1006 {
1007 This_insn::template rela<32>(view, 0, 0x0000007f, object, psymval, addend);
1008 }
1009
1010 // R_SPARC_6: (Symbol + Addend)
1011 static inline void
1012 rela32_6(unsigned char* view,
6fa2a40b 1013 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 1014 const Symbol_value<size>* psymval,
1015 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1016 {
1017 This_insn::template rela<32>(view, 0, 0x0000003f, object, psymval, addend);
1018 }
1019
1020 // R_SPARC_5: (Symbol + Addend)
1021 static inline void
1022 rela32_5(unsigned char* view,
6fa2a40b 1023 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 1024 const Symbol_value<size>* psymval,
1025 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1026 {
1027 This_insn::template rela<32>(view, 0, 0x0000001f, object, psymval, addend);
1028 }
1029
1030 // R_SPARC_TLS_LDO_HIX22: @dtpoff(Symbol + Addend) >> 10
1031 static inline void
1032 ldo_hix22(unsigned char* view,
2ea97941 1033 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 1034 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1035 {
2ea97941 1036 This_insn::hi22(view, value, addend);
f5314dd5
DM		 1037 }
1038
1039 // R_SPARC_TLS_LDO_LOX10: @dtpoff(Symbol + Addend) & 0x3ff
1040 static inline void
1041 ldo_lox10(unsigned char* view,
2ea97941 1042 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 1043 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1044 {
1045 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1046 Valtype* wv = reinterpret_cast<Valtype*>(view);
1047 Valtype val = elfcpp::Swap<32, true>::readval(wv);
2ea97941 1048 Valtype reloc = (value + addend);
f5314dd5
DM		 1049
1050 val &= ~0x1fff;
1051 reloc &= 0x3ff;
1052
1053 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1054 }
1055
1056 // R_SPARC_TLS_LE_HIX22: (@tpoff(Symbol + Addend) ^ 0xffffffffffffffff) >> 10
1057 static inline void
1058 hix22(unsigned char* view,
2ea97941 1059 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 1060 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1061 {
1062 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1063 Valtype* wv = reinterpret_cast<Valtype*>(view);
1064 Valtype val = elfcpp::Swap<32, true>::readval(wv);
2ea97941 1065 Valtype reloc = (value + addend);
f5314dd5
DM		 1066
1067 val &= ~0x3fffff;
1068
1069 reloc ^= ~(Valtype)0;
1070 reloc >>= 10;
1071
1072 reloc &= 0x3fffff;
1073
1074 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1075 }
1076
2a1079e8
DM		 1077 // R_SPARC_GOTDATA_OP_HIX22: @gdopoff(Symbol + Addend) >> 10
1078 static inline void
1079 gdop_hix22(unsigned char* view,
1080 typename elfcpp::Elf_types<size>::Elf_Addr value,
1081 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1082 {
1083 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1084 Valtype* wv = reinterpret_cast<Valtype*>(view);
1085 Valtype val = elfcpp::Swap<32, true>::readval(wv);
1086 int32_t reloc = static_cast<int32_t>(value + addend);
1087
1088 val &= ~0x3fffff;
1089
1090 if (reloc < 0)
1091 reloc ^= ~static_cast<int32_t>(0);
1092 reloc >>= 10;
1093
1094 reloc &= 0x3fffff;
1095
1096 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1097 }
1098
f5314dd5
DM		 1099 // R_SPARC_HIX22: ((Symbol + Addend) ^ 0xffffffffffffffff) >> 10
1100 static inline void
1101 hix22(unsigned char* view,
6fa2a40b 1102 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 1103 const Symbol_value<size>* psymval,
1104 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1105 {
1106 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1107 Valtype* wv = reinterpret_cast<Valtype*>(view);
1108 Valtype val = elfcpp::Swap<32, true>::readval(wv);
1109 Valtype reloc = psymval->value(object, addend);
1110
1111 val &= ~0x3fffff;
1112
1113 reloc ^= ~(Valtype)0;
1114 reloc >>= 10;
1115
1116 reloc &= 0x3fffff;
1117
1118 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1119 }
1120
1121
1122 // R_SPARC_TLS_LE_LOX10: (@tpoff(Symbol + Addend) & 0x3ff) | 0x1c00
1123 static inline void
1124 lox10(unsigned char* view,
2ea97941 1125 typename elfcpp::Elf_types<size>::Elf_Addr value,
f5314dd5
DM		 1126 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1127 {
1128 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1129 Valtype* wv = reinterpret_cast<Valtype*>(view);
1130 Valtype val = elfcpp::Swap<32, true>::readval(wv);
2ea97941 1131 Valtype reloc = (value + addend);
f5314dd5
DM		 1132
1133 val &= ~0x1fff;
1134 reloc &= 0x3ff;
1135 reloc |= 0x1c00;
1136
1137 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1138 }
1139
2a1079e8
DM		 1140 // R_SPARC_GOTDATA_OP_LOX10: (@gdopoff(Symbol + Addend) & 0x3ff) | 0x1c00
1141 static inline void
1142 gdop_lox10(unsigned char* view,
1143 typename elfcpp::Elf_types<size>::Elf_Addr value,
1144 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1145 {
1146 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1147 Valtype* wv = reinterpret_cast<Valtype*>(view);
1148 Valtype val = elfcpp::Swap<32, true>::readval(wv);
1149 int32_t reloc = static_cast<int32_t>(value + addend);
1150
1151 if (reloc < 0)
1152 reloc = (reloc & 0x3ff) | 0x1c00;
1153 else
1154 reloc = (reloc & 0x3ff);
1155
1156 val &= ~0x1fff;
1157 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1158 }
1159
f5314dd5
DM		 1160 // R_SPARC_LOX10: ((Symbol + Addend) & 0x3ff) | 0x1c00
1161 static inline void
1162 lox10(unsigned char* view,
6fa2a40b 1163 const Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 1164 const Symbol_value<size>* psymval,
1165 typename elfcpp::Elf_types<size>::Elf_Addr addend)
1166 {
1167 typedef typename elfcpp::Swap<32, true>::Valtype Valtype;
1168 Valtype* wv = reinterpret_cast<Valtype*>(view);
1169 Valtype val = elfcpp::Swap<32, true>::readval(wv);
1170 Valtype reloc = psymval->value(object, addend);
1171
1172 val &= ~0x1fff;
1173 reloc &= 0x3ff;
1174 reloc |= 0x1c00;
1175
1176 elfcpp::Swap<32, true>::writeval(wv, val | reloc);
1177 }
1178};
1179
1180// Get the GOT section, creating it if necessary.
1181
1182template<int size, bool big_endian>
1183Output_data_got<size, big_endian>*
1184Target_sparc<size, big_endian>::got_section(Symbol_table* symtab,
1185 Layout* layout)
1186{
1187 if (this->got_ == NULL)
1188 {
1189 gold_assert(symtab != NULL && layout != NULL);
1190
1191 this->got_ = new Output_data_got<size, big_endian>();
1192
82742395
ILT		 1193 layout->add_output_section_data(".got", elfcpp::SHT_PROGBITS,
1194 (elfcpp::SHF_ALLOC
1195 | elfcpp::SHF_WRITE),
22f0da72 1196 this->got_, ORDER_RELRO, true);
f5314dd5
DM		 1197
1198 // Define _GLOBAL_OFFSET_TABLE_ at the start of the .got section.
1199 symtab->define_in_output_data("_GLOBAL_OFFSET_TABLE_", NULL,
99fff23b 1200 Symbol_table::PREDEFINED,
f5314dd5
DM		 1201 this->got_,
1202 0, 0, elfcpp::STT_OBJECT,
1203 elfcpp::STB_LOCAL,
1204 elfcpp::STV_HIDDEN, 0,
1205 false, false);
1206 }
1207
1208 return this->got_;
1209}
1210
1211// Get the dynamic reloc section, creating it if necessary.
1212
1213template<int size, bool big_endian>
1214typename Target_sparc<size, big_endian>::Reloc_section*
1215Target_sparc<size, big_endian>::rela_dyn_section(Layout* layout)
1216{
1217 if (this->rela_dyn_ == NULL)
1218 {
1219 gold_assert(layout != NULL);
d98bc257 1220 this->rela_dyn_ = new Reloc_section(parameters->options().combreloc());
f5314dd5 1221 layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA,
22f0da72
ILT		 1222 elfcpp::SHF_ALLOC, this->rela_dyn_,
1223 ORDER_DYNAMIC_RELOCS, false);
f5314dd5
DM		 1224 }
1225 return this->rela_dyn_;
1226}
1227
8c2bf391
DM		 1228// Get the section to use for IFUNC relocs, creating it if
1229// necessary. These go in .rela.dyn, but only after all other dynamic
1230// relocations. They need to follow the other dynamic relocations so
1231// that they can refer to global variables initialized by those
1232// relocs.
1233
1234template<int size, bool big_endian>
1235typename Target_sparc<size, big_endian>::Reloc_section*
1236Target_sparc<size, big_endian>::rela_ifunc_section(Layout* layout)
1237{
1238 if (this->rela_ifunc_ == NULL)
1239 {
1240 // Make sure we have already created the dynamic reloc section.
1241 this->rela_dyn_section(layout);
1242 this->rela_ifunc_ = new Reloc_section(false);
1243 layout->add_output_section_data(".rela.dyn", elfcpp::SHT_RELA,
1244 elfcpp::SHF_ALLOC, this->rela_ifunc_,
1245 ORDER_DYNAMIC_RELOCS, false);
1246 gold_assert(this->rela_dyn_->output_section()
1247 == this->rela_ifunc_->output_section());
1248 }
1249 return this->rela_ifunc_;
1250}
1251
f5314dd5
DM		 1252// A class to handle the PLT data.
1253
1254template<int size, bool big_endian>
1255class Output_data_plt_sparc : public Output_section_data
1256{
1257 public:
1258 typedef Output_data_reloc<elfcpp::SHT_RELA, true,
1259 size, big_endian> Reloc_section;
1260
1261 Output_data_plt_sparc(Layout*);
1262
1263 // Add an entry to the PLT.
8c2bf391
DM		 1264 void add_entry(Symbol_table* symtab, Layout* layout, Symbol* gsym);
1265
1266 // Add an entry to the PLT for a local STT_GNU_IFUNC symbol.
1267 unsigned int
1268 add_local_ifunc_entry(Symbol_table*, Layout*,
1269 Sized_relobj_file<size, big_endian>* relobj,
1270 unsigned int local_sym_index);
f5314dd5
DM		 1271
1272 // Return the .rela.plt section data.
1273 const Reloc_section* rel_plt() const
1274 {
1275 return this->rel_;
1276 }
1277
8c2bf391
DM		 1278 // Return where the IFUNC relocations should go.
1279 Reloc_section*
1280 rela_ifunc(Symbol_table*, Layout*);
1281
1282 void
1283 emit_pending_ifunc_relocs();
1284
1285 // Return whether we created a section for IFUNC relocations.
1286 bool
1287 has_ifunc_section() const
1288 { return this->ifunc_rel_ != NULL; }
1289
0e70b911
CC		 1290 // Return the number of PLT entries.
1291 unsigned int
1292 entry_count() const
8c2bf391 1293 { return this->count_ + this->ifunc_count_; }
0e70b911
CC		 1294
1295 // Return the offset of the first non-reserved PLT entry.
1296 static unsigned int
1297 first_plt_entry_offset()
1298 { return 4 * base_plt_entry_size; }
1299
1300 // Return the size of a PLT entry.
1301 static unsigned int
1302 get_plt_entry_size()
1303 { return base_plt_entry_size; }
1304
8c2bf391
DM		 1305 // Return the PLT address to use for a global symbol.
1306 uint64_t
1307 address_for_global(const Symbol*);
1308
1309 // Return the PLT address to use for a local symbol.
1310 uint64_t
1311 address_for_local(const Relobj*, unsigned int symndx);
1312
f5314dd5
DM		 1313 protected:
1314 void do_adjust_output_section(Output_section* os);
1315
7d9e3d98
ILT		 1316 // Write to a map file.
1317 void
1318 do_print_to_mapfile(Mapfile* mapfile) const
1319 { mapfile->print_output_data(this, _("** PLT")); }
1320
f5314dd5
DM		 1321 private:
1322 // The size of an entry in the PLT.
1323 static const int base_plt_entry_size = (size == 32 ? 12 : 32);
1324
1325 static const unsigned int plt_entries_per_block = 160;
1326 static const unsigned int plt_insn_chunk_size = 24;
1327 static const unsigned int plt_pointer_chunk_size = 8;
1328 static const unsigned int plt_block_size =
1329 (plt_entries_per_block
1330 * (plt_insn_chunk_size + plt_pointer_chunk_size));
1331
8c2bf391
DM		 1332 section_offset_type
1333 plt_index_to_offset(unsigned int index)
f5314dd5 1334 {
8c2bf391 1335 section_offset_type offset;
f5314dd5 1336
8c2bf391
DM		 1337 if (size == 32 || index < 32768)
1338 offset = index * base_plt_entry_size;
f5314dd5
DM		 1339 else
1340 {
8c2bf391 1341 unsigned int ext_index = index - 32768;
f5314dd5 1342
8c2bf391
DM		 1343 offset = (32768 * base_plt_entry_size)
1344 + ((ext_index / plt_entries_per_block)
1345 * plt_block_size)
1346 + ((ext_index % plt_entries_per_block)
1347 * plt_insn_chunk_size);
f5314dd5 1348 }
8c2bf391
DM		 1349 return offset;
1350 }
1351
1352 // Set the final size.
1353 void
1354 set_final_data_size()
1355 {
1356 unsigned int full_count = this->entry_count() + 4;
1357 unsigned int extra = (size == 32 ? 4 : 0);
1358 section_offset_type sz = plt_index_to_offset(full_count) + extra;
1359
1360 return this->set_data_size(sz);
f5314dd5
DM		 1361 }
1362
1363 // Write out the PLT data.
1364 void
1365 do_write(Output_file*);
1366
8c2bf391
DM		 1367 struct Global_ifunc
1368 {
1369 Reloc_section* rel;
1370 Symbol* gsym;
1371 unsigned int plt_index;
1372 };
1373
1374 struct Local_ifunc
1375 {
1376 Reloc_section* rel;
1377 Sized_relobj_file<size, big_endian>* object;
1378 unsigned int local_sym_index;
1379 unsigned int plt_index;
1380 };
1381
f5314dd5
DM		 1382 // The reloc section.
1383 Reloc_section* rel_;
8c2bf391
DM		 1384 // The IFUNC relocations, if necessary. These must follow the
1385 // regular relocations.
1386 Reloc_section* ifunc_rel_;
f5314dd5
DM		 1387 // The number of PLT entries.
1388 unsigned int count_;
8c2bf391
DM		 1389 // The number of PLT entries for IFUNC symbols.
1390 unsigned int ifunc_count_;
1391 // Global STT_GNU_IFUNC symbols.
1392 std::vector<Global_ifunc> global_ifuncs_;
1393 // Local STT_GNU_IFUNC symbols.
1394 std::vector<Local_ifunc> local_ifuncs_;
f5314dd5
DM		 1395};
1396
4f2a9edd
ILT		 1397// Define the constants as required by C++ standard.
1398
1399template<int size, bool big_endian>
1400const int Output_data_plt_sparc<size, big_endian>::base_plt_entry_size;
1401
1402template<int size, bool big_endian>
1403const unsigned int
1404Output_data_plt_sparc<size, big_endian>::plt_entries_per_block;
1405
1406template<int size, bool big_endian>
1407const unsigned int Output_data_plt_sparc<size, big_endian>::plt_insn_chunk_size;
1408
1409template<int size, bool big_endian>
1410const unsigned int
1411Output_data_plt_sparc<size, big_endian>::plt_pointer_chunk_size;
1412
1413template<int size, bool big_endian>
1414const unsigned int Output_data_plt_sparc<size, big_endian>::plt_block_size;
1415
f5314dd5
DM		 1416// Create the PLT section. The ordinary .got section is an argument,
1417// since we need to refer to the start.
1418
1419template<int size, bool big_endian>
1420Output_data_plt_sparc<size, big_endian>::Output_data_plt_sparc(Layout* layout)
8c2bf391
DM		 1421 : Output_section_data(size == 32 ? 4 : 8), ifunc_rel_(NULL),
1422 count_(0), ifunc_count_(0), global_ifuncs_(), local_ifuncs_()
f5314dd5 1423{
d98bc257 1424 this->rel_ = new Reloc_section(false);
f5314dd5 1425 layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA,
22f0da72
ILT		 1426 elfcpp::SHF_ALLOC, this->rel_,
1427 ORDER_DYNAMIC_PLT_RELOCS, false);
f5314dd5
DM		 1428}
1429
1430template<int size, bool big_endian>
1431void
1432Output_data_plt_sparc<size, big_endian>::do_adjust_output_section(Output_section* os)
1433{
1434 os->set_entsize(0);
1435}
1436
1437// Add an entry to the PLT.
1438
1439template<int size, bool big_endian>
1440void
8c2bf391
DM		 1441Output_data_plt_sparc<size, big_endian>::add_entry(Symbol_table* symtab,
1442 Layout* layout,
1443 Symbol* gsym)
f5314dd5
DM		 1444{
1445 gold_assert(!gsym->has_plt_offset());
1446
f5314dd5 1447 section_offset_type plt_offset;
8c2bf391 1448 unsigned int index;
f5314dd5 1449
8c2bf391
DM		 1450 if (gsym->type() == elfcpp::STT_GNU_IFUNC
1451 && gsym->can_use_relative_reloc(false))
1452 {
1453 index = this->ifunc_count_;
1454 plt_offset = plt_index_to_offset(index);
1455 gsym->set_plt_offset(plt_offset);
1456 ++this->ifunc_count_;
1457 Reloc_section* rel = this->rela_ifunc(symtab, layout);
1458
1459 struct Global_ifunc gi;
1460 gi.rel = rel;
1461 gi.gsym = gsym;
1462 gi.plt_index = index;
1463 this->global_ifuncs_.push_back(gi);
1464 }
f5314dd5
DM		 1465 else
1466 {
8c2bf391
DM		 1467 plt_offset = plt_index_to_offset(this->count_ + 4);
1468 gsym->set_plt_offset(plt_offset);
1469 ++this->count_;
1470 gsym->set_needs_dynsym_entry();
1471 this->rel_->add_global(gsym, elfcpp::R_SPARC_JMP_SLOT, this,
1472 plt_offset, 0);
1473 }
f5314dd5 1474
8c2bf391
DM		 1475 // Note that we don't need to save the symbol. The contents of the
1476 // PLT are independent of which symbols are used. The symbols only
1477 // appear in the relocations.
1478}
1479
1480template<int size, bool big_endian>
1481unsigned int
1482Output_data_plt_sparc<size, big_endian>::add_local_ifunc_entry(
1483 Symbol_table* symtab,
1484 Layout* layout,
1485 Sized_relobj_file<size, big_endian>* relobj,
1486 unsigned int local_sym_index)
1487{
1488 unsigned int index = this->ifunc_count_;
1489 section_offset_type plt_offset;
1490
1491 plt_offset = plt_index_to_offset(index);
1492 ++this->ifunc_count_;
1493
1494 Reloc_section* rel = this->rela_ifunc(symtab, layout);
1495
1496 struct Local_ifunc li;
1497 li.rel = rel;
1498 li.object = relobj;
1499 li.local_sym_index = local_sym_index;
1500 li.plt_index = index;
1501 this->local_ifuncs_.push_back(li);
1502
1503 return plt_offset;
1504}
1505
1506// Emit any pending IFUNC plt relocations.
1507
1508template<int size, bool big_endian>
1509void
1510Output_data_plt_sparc<size, big_endian>::emit_pending_ifunc_relocs()
1511{
1512 // Emit any pending IFUNC relocs.
1513 for (typename std::vector<Global_ifunc>::const_iterator p =
1514 this->global_ifuncs_.begin();
1515 p != this->global_ifuncs_.end();
1516 ++p)
1517 {
1518 section_offset_type plt_offset;
1519 unsigned int index;
1520
1521 index = this->count_ + p->plt_index + 4;
1522 plt_offset = this->plt_index_to_offset(index);
1523 p->rel->add_symbolless_global_addend(p->gsym, elfcpp::R_SPARC_JMP_IREL,
1524 this, plt_offset, 0);
1525 }
1526
1527 for (typename std::vector<Local_ifunc>::const_iterator p =
1528 this->local_ifuncs_.begin();
1529 p != this->local_ifuncs_.end();
1530 ++p)
1531 {
1532 section_offset_type plt_offset;
1533 unsigned int index;
1534
1535 index = this->count_ + p->plt_index + 4;
1536 plt_offset = this->plt_index_to_offset(index);
1537 p->rel->add_symbolless_local_addend(p->object, p->local_sym_index,
1538 elfcpp::R_SPARC_JMP_IREL,
1539 this, plt_offset, 0);
f5314dd5 1540 }
8c2bf391 1541}
f5314dd5 1542
8c2bf391
DM		 1543// Return where the IFUNC relocations should go in the PLT. These
1544// follow the non-IFUNC relocations.
f5314dd5 1545
8c2bf391
DM		 1546template<int size, bool big_endian>
1547typename Output_data_plt_sparc<size, big_endian>::Reloc_section*
1548Output_data_plt_sparc<size, big_endian>::rela_ifunc(
1549 Symbol_table* symtab,
1550 Layout* layout)
1551{
1552 if (this->ifunc_rel_ == NULL)
1553 {
1554 this->ifunc_rel_ = new Reloc_section(false);
1555 layout->add_output_section_data(".rela.plt", elfcpp::SHT_RELA,
1556 elfcpp::SHF_ALLOC, this->ifunc_rel_,
1557 ORDER_DYNAMIC_PLT_RELOCS, false);
1558 gold_assert(this->ifunc_rel_->output_section()
1559 == this->rel_->output_section());
1560
1561 if (parameters->doing_static_link())
1562 {
1563 // A statically linked executable will only have a .rel.plt
1564 // section to hold R_SPARC_IRELATIVE and R_SPARC_JMP_IREL
1565 // relocs for STT_GNU_IFUNC symbols. The library will use
1566 // these symbols to locate the IRELATIVE and JMP_IREL relocs
1567 // at program startup time.
1568 symtab->define_in_output_data("__rela_iplt_start", NULL,
1569 Symbol_table::PREDEFINED,
1570 this->ifunc_rel_, 0, 0,
1571 elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL,
1572 elfcpp::STV_HIDDEN, 0, false, true);
1573 symtab->define_in_output_data("__rela_iplt_end", NULL,
1574 Symbol_table::PREDEFINED,
1575 this->ifunc_rel_, 0, 0,
1576 elfcpp::STT_NOTYPE, elfcpp::STB_GLOBAL,
1577 elfcpp::STV_HIDDEN, 0, true, true);
1578 }
1579 }
1580 return this->ifunc_rel_;
1581}
f5314dd5 1582
8c2bf391 1583// Return the PLT address to use for a global symbol.
f5314dd5 1584
8c2bf391
DM		 1585template<int size, bool big_endian>
1586uint64_t
1587Output_data_plt_sparc<size, big_endian>::address_for_global(const Symbol* gsym)
1588{
1589 uint64_t offset = 0;
1590 if (gsym->type() == elfcpp::STT_GNU_IFUNC
1591 && gsym->can_use_relative_reloc(false))
1592 offset = plt_index_to_offset(this->count_ + 4);
1593 return this->address() + offset;
1594}
1595
1596// Return the PLT address to use for a local symbol. These are always
1597// IRELATIVE relocs.
1598
1599template<int size, bool big_endian>
1600uint64_t
1601Output_data_plt_sparc<size, big_endian>::address_for_local(
1602 const Relobj*,
1603 unsigned int)
1604{
1605 return this->address() + plt_index_to_offset(this->count_ + 4);
f5314dd5
DM		 1606}
1607
1608static const unsigned int sparc_nop = 0x01000000;
1609static const unsigned int sparc_sethi_g1 = 0x03000000;
1610static const unsigned int sparc_branch_always = 0x30800000;
1611static const unsigned int sparc_branch_always_pt = 0x30680000;
1612static const unsigned int sparc_mov = 0x80100000;
1613static const unsigned int sparc_mov_g0_o0 = 0x90100000;
1614static const unsigned int sparc_mov_o7_g5 = 0x8a10000f;
1615static const unsigned int sparc_call_plus_8 = 0x40000002;
1616static const unsigned int sparc_ldx_o7_imm_g1 = 0xc25be000;
1617static const unsigned int sparc_jmpl_o7_g1_g1 = 0x83c3c001;
1618static const unsigned int sparc_mov_g5_o7 = 0x9e100005;
1619
1620// Write out the PLT.
1621
1622template<int size, bool big_endian>
1623void
1624Output_data_plt_sparc<size, big_endian>::do_write(Output_file* of)
1625{
2ea97941 1626 const off_t offset = this->offset();
f5314dd5
DM		 1627 const section_size_type oview_size =
1628 convert_to_section_size_type(this->data_size());
2ea97941 1629 unsigned char* const oview = of->get_output_view(offset, oview_size);
f5314dd5
DM		 1630 unsigned char* pov = oview;
1631
1632 memset(pov, 0, base_plt_entry_size * 4);
8c2bf391 1633 pov += this->first_plt_entry_offset();
f5314dd5
DM		 1634
1635 unsigned int plt_offset = base_plt_entry_size * 4;
8c2bf391 1636 const unsigned int count = this->entry_count();
f5314dd5
DM		 1637
1638 if (size == 64)
1639 {
1640 unsigned int limit;
1641
1642 limit = (count > 32768 ? 32768 : count);
1643
1644 for (unsigned int i = 0; i < limit; ++i)
1645 {
1646 elfcpp::Swap<32, true>::writeval(pov + 0x00,
1647 sparc_sethi_g1 + plt_offset);
1648 elfcpp::Swap<32, true>::writeval(pov + 0x04,
1649 sparc_branch_always_pt +
1650 (((base_plt_entry_size -
1651 (plt_offset + 4)) >> 2) &
1652 0x7ffff));
1653 elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop);
1654 elfcpp::Swap<32, true>::writeval(pov + 0x0c, sparc_nop);
1655 elfcpp::Swap<32, true>::writeval(pov + 0x10, sparc_nop);
1656 elfcpp::Swap<32, true>::writeval(pov + 0x14, sparc_nop);
1657 elfcpp::Swap<32, true>::writeval(pov + 0x18, sparc_nop);
1658 elfcpp::Swap<32, true>::writeval(pov + 0x1c, sparc_nop);
1659
1660 pov += base_plt_entry_size;
1661 plt_offset += base_plt_entry_size;
1662 }
1663
1664 if (count > 32768)
1665 {
1666 unsigned int ext_cnt = count - 32768;
1667 unsigned int blks = ext_cnt / plt_entries_per_block;
1668
1669 for (unsigned int i = 0; i < blks; ++i)
1670 {
1671 unsigned int data_off = (plt_entries_per_block
1672 * plt_insn_chunk_size) - 4;
1673
1674 for (unsigned int j = 0; j < plt_entries_per_block; ++j)
1675 {
1676 elfcpp::Swap<32, true>::writeval(pov + 0x00,
1677 sparc_mov_o7_g5);
1678 elfcpp::Swap<32, true>::writeval(pov + 0x04,
1679 sparc_call_plus_8);
1680 elfcpp::Swap<32, true>::writeval(pov + 0x08,
1681 sparc_nop);
1682 elfcpp::Swap<32, true>::writeval(pov + 0x0c,
1683 sparc_ldx_o7_imm_g1 +
1684 (data_off & 0x1fff));
1685 elfcpp::Swap<32, true>::writeval(pov + 0x10,
1686 sparc_jmpl_o7_g1_g1);
1687 elfcpp::Swap<32, true>::writeval(pov + 0x14,
1688 sparc_mov_g5_o7);
1689
1690 elfcpp::Swap<64, big_endian>::writeval(
1691 pov + 0x4 + data_off,
1692 (elfcpp::Elf_Xword) (oview - (pov + 0x04)));
1693
1694 pov += plt_insn_chunk_size;
1695 data_off -= 16;
1696 }
1697 }
1698
1699 unsigned int sub_blk_cnt = ext_cnt % plt_entries_per_block;
1700 for (unsigned int i = 0; i < sub_blk_cnt; ++i)
1701 {
1702 unsigned int data_off = (sub_blk_cnt
1703 * plt_insn_chunk_size) - 4;
1704
1705 for (unsigned int j = 0; j < plt_entries_per_block; ++j)
1706 {
1707 elfcpp::Swap<32, true>::writeval(pov + 0x00,
1708 sparc_mov_o7_g5);
1709 elfcpp::Swap<32, true>::writeval(pov + 0x04,
1710 sparc_call_plus_8);
1711 elfcpp::Swap<32, true>::writeval(pov + 0x08,
1712 sparc_nop);
1713 elfcpp::Swap<32, true>::writeval(pov + 0x0c,
1714 sparc_ldx_o7_imm_g1 +
1715 (data_off & 0x1fff));
1716 elfcpp::Swap<32, true>::writeval(pov + 0x10,
1717 sparc_jmpl_o7_g1_g1);
1718 elfcpp::Swap<32, true>::writeval(pov + 0x14,
1719 sparc_mov_g5_o7);
1720
1721 elfcpp::Swap<64, big_endian>::writeval(
1722 pov + 0x4 + data_off,
1723 (elfcpp::Elf_Xword) (oview - (pov + 0x04)));
1724
1725 pov += plt_insn_chunk_size;
1726 data_off -= 16;
1727 }
1728 }
1729 }
1730 }
1731 else
1732 {
1733 for (unsigned int i = 0; i < count; ++i)
1734 {
1735 elfcpp::Swap<32, true>::writeval(pov + 0x00,
1736 sparc_sethi_g1 + plt_offset);
1737 elfcpp::Swap<32, true>::writeval(pov + 0x04,
1738 sparc_branch_always +
1739 (((- (plt_offset + 4)) >> 2) &
1740 0x003fffff));
1741 elfcpp::Swap<32, true>::writeval(pov + 0x08, sparc_nop);
1742
1743 pov += base_plt_entry_size;
1744 plt_offset += base_plt_entry_size;
1745 }
1746
1747 elfcpp::Swap<32, true>::writeval(pov, sparc_nop);
1748 pov += 4;
1749 }
1750
1751 gold_assert(static_cast<section_size_type>(pov - oview) == oview_size);
1752
2ea97941 1753 of->write_output_view(offset, oview_size, oview);
f5314dd5
DM		 1754}
1755
8c2bf391
DM		 1756// Create the PLT section.
1757
1758template<int size, bool big_endian>
1759void
1760Target_sparc<size, big_endian>::make_plt_section(Symbol_table* symtab,
1761 Layout* layout)
1762{
1763 // Create the GOT sections first.
1764 this->got_section(symtab, layout);
1765
1766 // Ensure that .rela.dyn always appears before .rela.plt This is
1767 // necessary due to how, on Sparc and some other targets, .rela.dyn
1768 // needs to include .rela.plt in it's range.
1769 this->rela_dyn_section(layout);
1770
1771 this->plt_ = new Output_data_plt_sparc<size, big_endian>(layout);
1772 layout->add_output_section_data(".plt", elfcpp::SHT_PROGBITS,
1773 (elfcpp::SHF_ALLOC
1774 | elfcpp::SHF_EXECINSTR
1775 | elfcpp::SHF_WRITE),
1776 this->plt_, ORDER_NON_RELRO_FIRST, false);
1777
1778 // Define _PROCEDURE_LINKAGE_TABLE_ at the start of the .plt section.
1779 symtab->define_in_output_data("_PROCEDURE_LINKAGE_TABLE_", NULL,
1780 Symbol_table::PREDEFINED,
1781 this->plt_,
1782 0, 0, elfcpp::STT_OBJECT,
1783 elfcpp::STB_LOCAL,
1784 elfcpp::STV_HIDDEN, 0,
1785 false, false);
1786}
1787
f5314dd5
DM		 1788// Create a PLT entry for a global symbol.
1789
1790template<int size, bool big_endian>
1791void
1792Target_sparc<size, big_endian>::make_plt_entry(Symbol_table* symtab,
1793 Layout* layout,
1794 Symbol* gsym)
1795{
1796 if (gsym->has_plt_offset())
1797 return;
1798
1799 if (this->plt_ == NULL)
8c2bf391 1800 this->make_plt_section(symtab, layout);
f5314dd5 1801
8c2bf391
DM		 1802 this->plt_->add_entry(symtab, layout, gsym);
1803}
f5314dd5 1804
8c2bf391 1805// Make a PLT entry for a local STT_GNU_IFUNC symbol.
f5314dd5 1806
8c2bf391
DM		 1807template<int size, bool big_endian>
1808void
1809Target_sparc<size, big_endian>::make_local_ifunc_plt_entry(
1810 Symbol_table* symtab,
1811 Layout* layout,
1812 Sized_relobj_file<size, big_endian>* relobj,
1813 unsigned int local_sym_index)
1814{
1815 if (relobj->local_has_plt_offset(local_sym_index))
1816 return;
1817 if (this->plt_ == NULL)
1818 this->make_plt_section(symtab, layout);
1819 unsigned int plt_offset = this->plt_->add_local_ifunc_entry(symtab, layout,
1820 relobj,
1821 local_sym_index);
1822 relobj->set_local_plt_offset(local_sym_index, plt_offset);
f5314dd5
DM		 1823}
1824
0e70b911
CC		 1825// Return the number of entries in the PLT.
1826
1827template<int size, bool big_endian>
1828unsigned int
1829Target_sparc<size, big_endian>::plt_entry_count() const
1830{
1831 if (this->plt_ == NULL)
1832 return 0;
1833 return this->plt_->entry_count();
1834}
1835
1836// Return the offset of the first non-reserved PLT entry.
1837
1838template<int size, bool big_endian>
1839unsigned int
1840Target_sparc<size, big_endian>::first_plt_entry_offset() const
1841{
1842 return Output_data_plt_sparc<size, big_endian>::first_plt_entry_offset();
1843}
1844
1845// Return the size of each PLT entry.
1846
1847template<int size, bool big_endian>
1848unsigned int
1849Target_sparc<size, big_endian>::plt_entry_size() const
1850{
1851 return Output_data_plt_sparc<size, big_endian>::get_plt_entry_size();
1852}
1853
f5314dd5
DM		 1854// Create a GOT entry for the TLS module index.
1855
1856template<int size, bool big_endian>
1857unsigned int
6fa2a40b
CC		 1858Target_sparc<size, big_endian>::got_mod_index_entry(
1859 Symbol_table* symtab,
1860 Layout* layout,
1861 Sized_relobj_file<size, big_endian>* object)
f5314dd5
DM		 1862{
1863 if (this->got_mod_index_offset_ == -1U)
1864 {
1865 gold_assert(symtab != NULL && layout != NULL && object != NULL);
1866 Reloc_section* rela_dyn = this->rela_dyn_section(layout);
1867 Output_data_got<size, big_endian>* got;
1868 unsigned int got_offset;
1869
1870 got = this->got_section(symtab, layout);
1871 got_offset = got->add_constant(0);
1872 rela_dyn->add_local(object, 0,
1873 (size == 64 ?
1874 elfcpp::R_SPARC_TLS_DTPMOD64 :
1875 elfcpp::R_SPARC_TLS_DTPMOD32), got,
1876 got_offset, 0);
1877 got->add_constant(0);
1878 this->got_mod_index_offset_ = got_offset;
1879 }
1880 return this->got_mod_index_offset_;
1881}
1882
f5314dd5
DM		 1883// Optimize the TLS relocation type based on what we know about the
1884// symbol. IS_FINAL is true if the final address of this symbol is
1885// known at link time.
1886
1887static tls::Tls_optimization
1888optimize_tls_reloc(bool is_final, int r_type)
1889{
1890 // If we are generating a shared library, then we can't do anything
1891 // in the linker.
1892 if (parameters->options().shared())
1893 return tls::TLSOPT_NONE;
1894
1895 switch (r_type)
1896 {
1897 case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
1898 case elfcpp::R_SPARC_TLS_GD_LO10:
1899 case elfcpp::R_SPARC_TLS_GD_ADD:
1900 case elfcpp::R_SPARC_TLS_GD_CALL:
1901 // These are General-Dynamic which permits fully general TLS
1902 // access. Since we know that we are generating an executable,
1903 // we can convert this to Initial-Exec. If we also know that
1904 // this is a local symbol, we can further switch to Local-Exec.
1905 if (is_final)
1906 return tls::TLSOPT_TO_LE;
1907 return tls::TLSOPT_TO_IE;
1908
1909 case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic
1910 case elfcpp::R_SPARC_TLS_LDM_LO10:
1911 case elfcpp::R_SPARC_TLS_LDM_ADD:
1912 case elfcpp::R_SPARC_TLS_LDM_CALL:
1913 // This is Local-Dynamic, which refers to a local symbol in the
1914 // dynamic TLS block. Since we know that we generating an
1915 // executable, we can switch to Local-Exec.
1916 return tls::TLSOPT_TO_LE;
1917
1918 case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
1919 case elfcpp::R_SPARC_TLS_LDO_LOX10:
1920 case elfcpp::R_SPARC_TLS_LDO_ADD:
1921 // Another type of Local-Dynamic relocation.
1922 return tls::TLSOPT_TO_LE;
1923
1924 case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec
1925 case elfcpp::R_SPARC_TLS_IE_LO10:
1926 case elfcpp::R_SPARC_TLS_IE_LD:
1927 case elfcpp::R_SPARC_TLS_IE_LDX:
9efe6174 1928 case elfcpp::R_SPARC_TLS_IE_ADD:
f5314dd5
DM		 1929 // These are Initial-Exec relocs which get the thread offset
1930 // from the GOT. If we know that we are linking against the
1931 // local symbol, we can switch to Local-Exec, which links the
1932 // thread offset into the instruction.
1933 if (is_final)
1934 return tls::TLSOPT_TO_LE;
1935 return tls::TLSOPT_NONE;
1936
1937 case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec
1938 case elfcpp::R_SPARC_TLS_LE_LOX10:
1939 // When we already have Local-Exec, there is nothing further we
1940 // can do.
1941 return tls::TLSOPT_NONE;
1942
1943 default:
1944 gold_unreachable();
1945 }
1946}
1947
95a2c8d6
RS		 1948// Get the Reference_flags for a particular relocation.
1949
1950template<int size, bool big_endian>
1951int
1952Target_sparc<size, big_endian>::Scan::get_reference_flags(unsigned int r_type)
1953{
1954 r_type &= 0xff;
1955 switch (r_type)
1956 {
1957 case elfcpp::R_SPARC_NONE:
1958 case elfcpp::R_SPARC_REGISTER:
1959 case elfcpp::R_SPARC_GNU_VTINHERIT:
1960 case elfcpp::R_SPARC_GNU_VTENTRY:
1961 // No symbol reference.
1962 return 0;
1963
1964 case elfcpp::R_SPARC_UA64:
1965 case elfcpp::R_SPARC_64:
1966 case elfcpp::R_SPARC_HIX22:
1967 case elfcpp::R_SPARC_LOX10:
2615994e 1968 case elfcpp::R_SPARC_H34:
95a2c8d6
RS		 1969 case elfcpp::R_SPARC_H44:
1970 case elfcpp::R_SPARC_M44:
1971 case elfcpp::R_SPARC_L44:
1972 case elfcpp::R_SPARC_HH22:
1973 case elfcpp::R_SPARC_HM10:
1974 case elfcpp::R_SPARC_LM22:
1975 case elfcpp::R_SPARC_HI22:
1976 case elfcpp::R_SPARC_LO10:
1977 case elfcpp::R_SPARC_OLO10:
1978 case elfcpp::R_SPARC_UA32:
1979 case elfcpp::R_SPARC_32:
1980 case elfcpp::R_SPARC_UA16:
1981 case elfcpp::R_SPARC_16:
1982 case elfcpp::R_SPARC_11:
1983 case elfcpp::R_SPARC_10:
1984 case elfcpp::R_SPARC_8:
1985 case elfcpp::R_SPARC_7:
1986 case elfcpp::R_SPARC_6:
1987 case elfcpp::R_SPARC_5:
1988 return Symbol::ABSOLUTE_REF;
1989
1990 case elfcpp::R_SPARC_DISP8:
1991 case elfcpp::R_SPARC_DISP16:
1992 case elfcpp::R_SPARC_DISP32:
1993 case elfcpp::R_SPARC_DISP64:
1994 case elfcpp::R_SPARC_PC_HH22:
1995 case elfcpp::R_SPARC_PC_HM10:
1996 case elfcpp::R_SPARC_PC_LM22:
1997 case elfcpp::R_SPARC_PC10:
1998 case elfcpp::R_SPARC_PC22:
1999 case elfcpp::R_SPARC_WDISP30:
2000 case elfcpp::R_SPARC_WDISP22:
2001 case elfcpp::R_SPARC_WDISP19:
2002 case elfcpp::R_SPARC_WDISP16:
2615994e 2003 case elfcpp::R_SPARC_WDISP10:
95a2c8d6
RS		 2004 return Symbol::RELATIVE_REF;
2005
2006 case elfcpp::R_SPARC_PLT64:
2007 case elfcpp::R_SPARC_PLT32:
2008 case elfcpp::R_SPARC_HIPLT22:
2009 case elfcpp::R_SPARC_LOPLT10:
2010 case elfcpp::R_SPARC_PCPLT10:
2011 return Symbol::FUNCTION_CALL | Symbol::ABSOLUTE_REF;
2012
2013 case elfcpp::R_SPARC_PCPLT32:
2014 case elfcpp::R_SPARC_PCPLT22:
2015 case elfcpp::R_SPARC_WPLT30:
2016 return Symbol::FUNCTION_CALL | Symbol::RELATIVE_REF;
2017
2018 case elfcpp::R_SPARC_GOTDATA_OP:
2019 case elfcpp::R_SPARC_GOTDATA_OP_HIX22:
2020 case elfcpp::R_SPARC_GOTDATA_OP_LOX10:
2021 case elfcpp::R_SPARC_GOT10:
2022 case elfcpp::R_SPARC_GOT13:
2023 case elfcpp::R_SPARC_GOT22:
2024 // Absolute in GOT.
2025 return Symbol::ABSOLUTE_REF;
2026
2027 case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
2028 case elfcpp::R_SPARC_TLS_GD_LO10:
2029 case elfcpp::R_SPARC_TLS_GD_ADD:
2030 case elfcpp::R_SPARC_TLS_GD_CALL:
2031 case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic
2032 case elfcpp::R_SPARC_TLS_LDM_LO10:
2033 case elfcpp::R_SPARC_TLS_LDM_ADD:
2034 case elfcpp::R_SPARC_TLS_LDM_CALL:
2035 case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
2036 case elfcpp::R_SPARC_TLS_LDO_LOX10:
2037 case elfcpp::R_SPARC_TLS_LDO_ADD:
2038 case elfcpp::R_SPARC_TLS_LE_HIX22:
2039 case elfcpp::R_SPARC_TLS_LE_LOX10:
2040 case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec
2041 case elfcpp::R_SPARC_TLS_IE_LO10:
2042 case elfcpp::R_SPARC_TLS_IE_LD:
2043 case elfcpp::R_SPARC_TLS_IE_LDX:
2044 case elfcpp::R_SPARC_TLS_IE_ADD:
2045 return Symbol::TLS_REF;
2046
2047 case elfcpp::R_SPARC_COPY:
2048 case elfcpp::R_SPARC_GLOB_DAT:
2049 case elfcpp::R_SPARC_JMP_SLOT:
8c2bf391 2050 case elfcpp::R_SPARC_JMP_IREL:
95a2c8d6 2051 case elfcpp::R_SPARC_RELATIVE:
8c2bf391 2052 case elfcpp::R_SPARC_IRELATIVE:
95a2c8d6
RS		 2053 case elfcpp::R_SPARC_TLS_DTPMOD64:
2054 case elfcpp::R_SPARC_TLS_DTPMOD32:
2055 case elfcpp::R_SPARC_TLS_DTPOFF64:
2056 case elfcpp::R_SPARC_TLS_DTPOFF32:
2057 case elfcpp::R_SPARC_TLS_TPOFF64:
2058 case elfcpp::R_SPARC_TLS_TPOFF32:
2059 default:
2060 // Not expected. We will give an error later.
2061 return 0;
2062 }
2063}
2064
f5314dd5
DM		 2065// Generate a PLT entry slot for a call to __tls_get_addr
2066template<int size, bool big_endian>
2067void
2068Target_sparc<size, big_endian>::Scan::generate_tls_call(Symbol_table* symtab,
2069 Layout* layout,
2070 Target_sparc<size, big_endian>* target)
2071{
2072 Symbol* gsym = target->tls_get_addr_sym(symtab);
2073
2074 target->make_plt_entry(symtab, layout, gsym);
2075}
2076
2077// Report an unsupported relocation against a local symbol.
2078
2079template<int size, bool big_endian>
2080void
2081Target_sparc<size, big_endian>::Scan::unsupported_reloc_local(
6fa2a40b 2082 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 2083 unsigned int r_type)
2084{
2085 gold_error(_("%s: unsupported reloc %u against local symbol"),
2086 object->name().c_str(), r_type);
2087}
2088
32b769e1
DM		 2089// We are about to emit a dynamic relocation of type R_TYPE. If the
2090// dynamic linker does not support it, issue an error.
2091
2092template<int size, bool big_endian>
2093void
2094Target_sparc<size, big_endian>::Scan::check_non_pic(Relobj* object, unsigned int r_type)
2095{
2096 gold_assert(r_type != elfcpp::R_SPARC_NONE);
2097
2098 if (size == 64)
2099 {
2100 switch (r_type)
2101 {
2102 // These are the relocation types supported by glibc for sparc 64-bit.
2103 case elfcpp::R_SPARC_RELATIVE:
8c2bf391 2104 case elfcpp::R_SPARC_IRELATIVE:
32b769e1
DM		 2105 case elfcpp::R_SPARC_COPY:
2106 case elfcpp::R_SPARC_64:
2107 case elfcpp::R_SPARC_GLOB_DAT:
2108 case elfcpp::R_SPARC_JMP_SLOT:
8c2bf391 2109 case elfcpp::R_SPARC_JMP_IREL:
32b769e1
DM		 2110 case elfcpp::R_SPARC_TLS_DTPMOD64:
2111 case elfcpp::R_SPARC_TLS_DTPOFF64:
2112 case elfcpp::R_SPARC_TLS_TPOFF64:
2113 case elfcpp::R_SPARC_TLS_LE_HIX22:
2114 case elfcpp::R_SPARC_TLS_LE_LOX10:
2115 case elfcpp::R_SPARC_8:
2116 case elfcpp::R_SPARC_16:
2117 case elfcpp::R_SPARC_DISP8:
2118 case elfcpp::R_SPARC_DISP16:
2119 case elfcpp::R_SPARC_DISP32:
2120 case elfcpp::R_SPARC_WDISP30:
2121 case elfcpp::R_SPARC_LO10:
2122 case elfcpp::R_SPARC_HI22:
2123 case elfcpp::R_SPARC_OLO10:
2615994e 2124 case elfcpp::R_SPARC_H34:
32b769e1
DM		 2125 case elfcpp::R_SPARC_H44:
2126 case elfcpp::R_SPARC_M44:
2127 case elfcpp::R_SPARC_L44:
2128 case elfcpp::R_SPARC_HH22:
2129 case elfcpp::R_SPARC_HM10:
2130 case elfcpp::R_SPARC_LM22:
2131 case elfcpp::R_SPARC_UA16:
2132 case elfcpp::R_SPARC_UA32:
2133 case elfcpp::R_SPARC_UA64:
2134 return;
2135
2136 default:
2137 break;
2138 }
2139 }
2140 else
2141 {
2142 switch (r_type)
2143 {
2144 // These are the relocation types supported by glibc for sparc 32-bit.
2145 case elfcpp::R_SPARC_RELATIVE:
8c2bf391 2146 case elfcpp::R_SPARC_IRELATIVE:
32b769e1
DM		 2147 case elfcpp::R_SPARC_COPY:
2148 case elfcpp::R_SPARC_GLOB_DAT:
2149 case elfcpp::R_SPARC_32:
2150 case elfcpp::R_SPARC_JMP_SLOT:
8c2bf391 2151 case elfcpp::R_SPARC_JMP_IREL:
32b769e1
DM		 2152 case elfcpp::R_SPARC_TLS_DTPMOD32:
2153 case elfcpp::R_SPARC_TLS_DTPOFF32:
2154 case elfcpp::R_SPARC_TLS_TPOFF32:
2155 case elfcpp::R_SPARC_TLS_LE_HIX22:
2156 case elfcpp::R_SPARC_TLS_LE_LOX10:
2157 case elfcpp::R_SPARC_8:
2158 case elfcpp::R_SPARC_16:
2159 case elfcpp::R_SPARC_DISP8:
2160 case elfcpp::R_SPARC_DISP16:
2161 case elfcpp::R_SPARC_DISP32:
2162 case elfcpp::R_SPARC_LO10:
2163 case elfcpp::R_SPARC_WDISP30:
2164 case elfcpp::R_SPARC_HI22:
2165 case elfcpp::R_SPARC_UA16:
2166 case elfcpp::R_SPARC_UA32:
2167 return;
2168
2169 default:
2170 break;
2171 }
2172 }
2173
2174 // This prevents us from issuing more than one error per reloc
2175 // section. But we can still wind up issuing more than one
2176 // error per object file.
2177 if (this->issued_non_pic_error_)
2178 return;
33aea2fd 2179 gold_assert(parameters->options().output_is_position_independent());
32b769e1
DM		 2180 object->error(_("requires unsupported dynamic reloc; "
2181 "recompile with -fPIC"));
2182 this->issued_non_pic_error_ = true;
2183 return;
2184}
2185
8c2bf391
DM		 2186// Return whether we need to make a PLT entry for a relocation of the
2187// given type against a STT_GNU_IFUNC symbol.
2188
2189template<int size, bool big_endian>
2190bool
2191Target_sparc<size, big_endian>::Scan::reloc_needs_plt_for_ifunc(
2192 Sized_relobj_file<size, big_endian>* object,
2193 unsigned int r_type)
2194{
2195 int flags = Scan::get_reference_flags(r_type);
2196 if (flags & Symbol::TLS_REF)
2197 gold_error(_("%s: unsupported TLS reloc %u for IFUNC symbol"),
2198 object->name().c_str(), r_type);
2199 return flags != 0;
2200}
2201
f5314dd5
DM		 2202// Scan a relocation for a local symbol.
2203
2204template<int size, bool big_endian>
2205inline void
2206Target_sparc<size, big_endian>::Scan::local(
f5314dd5
DM		 2207 Symbol_table* symtab,
2208 Layout* layout,
2209 Target_sparc<size, big_endian>* target,
6fa2a40b 2210 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 2211 unsigned int data_shndx,
2212 Output_section* output_section,
2213 const elfcpp::Rela<size, big_endian>& reloc,
2214 unsigned int r_type,
2215 const elfcpp::Sym<size, big_endian>& lsym)
2216{
8c2bf391 2217 bool is_ifunc = lsym.get_st_type() == elfcpp::STT_GNU_IFUNC;
f5314dd5 2218 unsigned int orig_r_type = r_type;
f5314dd5 2219 r_type &= 0xff;
8c2bf391
DM		 2220
2221 if (is_ifunc
2222 && this->reloc_needs_plt_for_ifunc(object, r_type))
2223 {
2224 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
2225 target->make_local_ifunc_plt_entry(symtab, layout, object, r_sym);
2226 }
2227
f5314dd5
DM		 2228 switch (r_type)
2229 {
2230 case elfcpp::R_SPARC_NONE:
2231 case elfcpp::R_SPARC_REGISTER:
2232 case elfcpp::R_SPARC_GNU_VTINHERIT:
2233 case elfcpp::R_SPARC_GNU_VTENTRY:
2234 break;
2235
2236 case elfcpp::R_SPARC_64:
2237 case elfcpp::R_SPARC_32:
2238 // If building a shared library (or a position-independent
2239 // executable), we need to create a dynamic relocation for
2240 // this location. The relocation applied at link time will
2241 // apply the link-time value, so we flag the location with
2242 // an R_SPARC_RELATIVE relocation so the dynamic loader can
2243 // relocate it easily.
2244 if (parameters->options().output_is_position_independent())
2245 {
2246 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
2247 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
2248 rela_dyn->add_local_relative(object, r_sym, elfcpp::R_SPARC_RELATIVE,
2249 output_section, data_shndx,
2250 reloc.get_r_offset(),
8c2bf391 2251 reloc.get_r_addend(), is_ifunc);
f5314dd5
DM		 2252 }
2253 break;
2254
2255 case elfcpp::R_SPARC_HIX22:
2256 case elfcpp::R_SPARC_LOX10:
2615994e 2257 case elfcpp::R_SPARC_H34:
f5314dd5
DM		 2258 case elfcpp::R_SPARC_H44:
2259 case elfcpp::R_SPARC_M44:
2260 case elfcpp::R_SPARC_L44:
2261 case elfcpp::R_SPARC_HH22:
2262 case elfcpp::R_SPARC_HM10:
2263 case elfcpp::R_SPARC_LM22:
2264 case elfcpp::R_SPARC_UA64:
2265 case elfcpp::R_SPARC_UA32:
2266 case elfcpp::R_SPARC_UA16:
2267 case elfcpp::R_SPARC_HI22:
2268 case elfcpp::R_SPARC_LO10:
2269 case elfcpp::R_SPARC_OLO10:
2270 case elfcpp::R_SPARC_16:
2271 case elfcpp::R_SPARC_11:
2272 case elfcpp::R_SPARC_10:
2273 case elfcpp::R_SPARC_8:
2274 case elfcpp::R_SPARC_7:
2275 case elfcpp::R_SPARC_6:
2276 case elfcpp::R_SPARC_5:
2277 // If building a shared library (or a position-independent
2278 // executable), we need to create a dynamic relocation for
2279 // this location.
2280 if (parameters->options().output_is_position_independent())
2281 {
2282 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
684b268a 2283 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
32b769e1
DM		 2284
2285 check_non_pic(object, r_type);
f5314dd5
DM		 2286 if (lsym.get_st_type() != elfcpp::STT_SECTION)
2287 {
f5314dd5
DM		 2288 rela_dyn->add_local(object, r_sym, orig_r_type, output_section,
2289 data_shndx, reloc.get_r_offset(),
2290 reloc.get_r_addend());
2291 }
2292 else
2293 {
f5314dd5 2294 gold_assert(lsym.get_st_value() == 0);
0da6fa6c
DM		 2295 rela_dyn->add_symbolless_local_addend(object, r_sym, orig_r_type,
2296 output_section, data_shndx,
2297 reloc.get_r_offset(),
2298 reloc.get_r_addend());
f5314dd5
DM		 2299 }
2300 }
2301 break;
2302
2303 case elfcpp::R_SPARC_WDISP30:
8861f32b 2304 case elfcpp::R_SPARC_WPLT30:
f5314dd5
DM		 2305 case elfcpp::R_SPARC_WDISP22:
2306 case elfcpp::R_SPARC_WDISP19:
2307 case elfcpp::R_SPARC_WDISP16:
2615994e 2308 case elfcpp::R_SPARC_WDISP10:
f5314dd5
DM		 2309 case elfcpp::R_SPARC_DISP8:
2310 case elfcpp::R_SPARC_DISP16:
2311 case elfcpp::R_SPARC_DISP32:
2312 case elfcpp::R_SPARC_DISP64:
2313 case elfcpp::R_SPARC_PC10:
2314 case elfcpp::R_SPARC_PC22:
2315 break;
2316
024c4466
DM		 2317 case elfcpp::R_SPARC_GOTDATA_OP:
2318 case elfcpp::R_SPARC_GOTDATA_OP_HIX22:
2319 case elfcpp::R_SPARC_GOTDATA_OP_LOX10:
2a1079e8
DM		 2320 // We will optimize this into a GOT relative relocation
2321 // and code transform the GOT load into an addition.
2322 break;
2323
f5314dd5
DM		 2324 case elfcpp::R_SPARC_GOT10:
2325 case elfcpp::R_SPARC_GOT13:
2326 case elfcpp::R_SPARC_GOT22:
2327 {
2328 // The symbol requires a GOT entry.
2329 Output_data_got<size, big_endian>* got;
2330 unsigned int r_sym;
2331
2332 got = target->got_section(symtab, layout);
2333 r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
2334
2335 // If we are generating a shared object, we need to add a
2336 // dynamic relocation for this symbol's GOT entry.
2337 if (parameters->options().output_is_position_independent())
2338 {
2339 if (!object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD))
2340 {
2341 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
8c2bf391 2342 unsigned int off = got->add_constant(0);
f5314dd5
DM		 2343 object->set_local_got_offset(r_sym, GOT_TYPE_STANDARD, off);
2344 rela_dyn->add_local_relative(object, r_sym,
2345 elfcpp::R_SPARC_RELATIVE,
8c2bf391 2346 got, off, 0, is_ifunc);
f5314dd5
DM		 2347 }
2348 }
2349 else
2350 got->add_local(object, r_sym, GOT_TYPE_STANDARD);
2351 }
2352 break;
2353
2354 // These are initial TLS relocs, which are expected when
2355 // linking.
2356 case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
2357 case elfcpp::R_SPARC_TLS_GD_LO10:
2358 case elfcpp::R_SPARC_TLS_GD_ADD:
2359 case elfcpp::R_SPARC_TLS_GD_CALL:
2360 case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic
2361 case elfcpp::R_SPARC_TLS_LDM_LO10:
2362 case elfcpp::R_SPARC_TLS_LDM_ADD:
2363 case elfcpp::R_SPARC_TLS_LDM_CALL:
2364 case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
2365 case elfcpp::R_SPARC_TLS_LDO_LOX10:
2366 case elfcpp::R_SPARC_TLS_LDO_ADD:
2367 case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec
2368 case elfcpp::R_SPARC_TLS_IE_LO10:
2369 case elfcpp::R_SPARC_TLS_IE_LD:
2370 case elfcpp::R_SPARC_TLS_IE_LDX:
9efe6174 2371 case elfcpp::R_SPARC_TLS_IE_ADD:
f5314dd5
DM		 2372 case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec
2373 case elfcpp::R_SPARC_TLS_LE_LOX10:
2374 {
2375 bool output_is_shared = parameters->options().shared();
2376 const tls::Tls_optimization optimized_type
2377 = optimize_tls_reloc(!output_is_shared, r_type);
2378 switch (r_type)
2379 {
2380 case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
2381 case elfcpp::R_SPARC_TLS_GD_LO10:
2382 case elfcpp::R_SPARC_TLS_GD_ADD:
2383 case elfcpp::R_SPARC_TLS_GD_CALL:
2384 if (optimized_type == tls::TLSOPT_NONE)
2385 {
2386 // Create a pair of GOT entries for the module index and
2387 // dtv-relative offset.
2388 Output_data_got<size, big_endian>* got
2389 = target->got_section(symtab, layout);
2390 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
d491d34e
ILT		 2391 unsigned int shndx = lsym.get_st_shndx();
2392 bool is_ordinary;
2393 shndx = object->adjust_sym_shndx(r_sym, shndx, &is_ordinary);
2394 if (!is_ordinary)
2395 object->error(_("local symbol %u has bad shndx %u"),
2396 r_sym, shndx);
2397 else
83896202
ILT		 2398 got->add_local_pair_with_rel(object, r_sym,
2399 lsym.get_st_shndx(),
2400 GOT_TYPE_TLS_PAIR,
2401 target->rela_dyn_section(layout),
2402 (size == 64
2403 ? elfcpp::R_SPARC_TLS_DTPMOD64
2404 : elfcpp::R_SPARC_TLS_DTPMOD32),
2405 0);
f5314dd5
DM		 2406 if (r_type == elfcpp::R_SPARC_TLS_GD_CALL)
2407 generate_tls_call(symtab, layout, target);
2408 }
2409 else if (optimized_type != tls::TLSOPT_TO_LE)
2410 unsupported_reloc_local(object, r_type);
2411 break;
2412
2413 case elfcpp::R_SPARC_TLS_LDM_HI22 : // Local-dynamic
2414 case elfcpp::R_SPARC_TLS_LDM_LO10:
2415 case elfcpp::R_SPARC_TLS_LDM_ADD:
2416 case elfcpp::R_SPARC_TLS_LDM_CALL:
2417 if (optimized_type == tls::TLSOPT_NONE)
2418 {
2419 // Create a GOT entry for the module index.
2420 target->got_mod_index_entry(symtab, layout, object);
2421
2422 if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL)
2423 generate_tls_call(symtab, layout, target);
2424 }
2425 else if (optimized_type != tls::TLSOPT_TO_LE)
2426 unsupported_reloc_local(object, r_type);
2427 break;
2428
2429 case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
2430 case elfcpp::R_SPARC_TLS_LDO_LOX10:
2431 case elfcpp::R_SPARC_TLS_LDO_ADD:
2432 break;
2433
2434 case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec
2435 case elfcpp::R_SPARC_TLS_IE_LO10:
2436 case elfcpp::R_SPARC_TLS_IE_LD:
2437 case elfcpp::R_SPARC_TLS_IE_LDX:
9efe6174 2438 case elfcpp::R_SPARC_TLS_IE_ADD:
f5314dd5
DM		 2439 layout->set_has_static_tls();
2440 if (optimized_type == tls::TLSOPT_NONE)
2441 {
2442 // Create a GOT entry for the tp-relative offset.
2443 Output_data_got<size, big_endian>* got
2444 = target->got_section(symtab, layout);
2445 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
2446
2447 if (!object->local_has_got_offset(r_sym, GOT_TYPE_TLS_OFFSET))
2448 {
2449 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
0da6fa6c
DM		 2450 unsigned int off = got->add_constant(0);
2451
2452 object->set_local_got_offset(r_sym, GOT_TYPE_TLS_OFFSET, off);
684b268a 2453
0da6fa6c
DM		 2454 rela_dyn->add_symbolless_local_addend(object, r_sym,
2455 (size == 64 ?
2456 elfcpp::R_SPARC_TLS_TPOFF64 :
2457 elfcpp::R_SPARC_TLS_TPOFF32),
2458 got, off, 0);
f5314dd5
DM		 2459 }
2460 }
2461 else if (optimized_type != tls::TLSOPT_TO_LE)
2462 unsupported_reloc_local(object, r_type);
2463 break;
2464
2465 case elfcpp::R_SPARC_TLS_LE_HIX22: // Local-exec
2466 case elfcpp::R_SPARC_TLS_LE_LOX10:
2467 layout->set_has_static_tls();
2468 if (output_is_shared)
2469 {
2470 // We need to create a dynamic relocation.
2471 gold_assert(lsym.get_st_type() != elfcpp::STT_SECTION);
2472 unsigned int r_sym = elfcpp::elf_r_sym<size>(reloc.get_r_info());
2473 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
0da6fa6c
DM		 2474 rela_dyn->add_symbolless_local_addend(object, r_sym, r_type,
2475 output_section, data_shndx,
2476 reloc.get_r_offset(), 0);
f5314dd5
DM		 2477 }
2478 break;
2479 }
2480 }
2481 break;
2482
2483 // These are relocations which should only be seen by the
2484 // dynamic linker, and should never be seen here.
2485 case elfcpp::R_SPARC_COPY:
2486 case elfcpp::R_SPARC_GLOB_DAT:
2487 case elfcpp::R_SPARC_JMP_SLOT:
8c2bf391 2488 case elfcpp::R_SPARC_JMP_IREL:
f5314dd5 2489 case elfcpp::R_SPARC_RELATIVE:
8c2bf391 2490 case elfcpp::R_SPARC_IRELATIVE:
f5314dd5
DM		 2491 case elfcpp::R_SPARC_TLS_DTPMOD64:
2492 case elfcpp::R_SPARC_TLS_DTPMOD32:
2493 case elfcpp::R_SPARC_TLS_DTPOFF64:
2494 case elfcpp::R_SPARC_TLS_DTPOFF32:
2495 case elfcpp::R_SPARC_TLS_TPOFF64:
2496 case elfcpp::R_SPARC_TLS_TPOFF32:
2497 gold_error(_("%s: unexpected reloc %u in object file"),
2498 object->name().c_str(), r_type);
2499 break;
2500
2501 default:
2502 unsupported_reloc_local(object, r_type);
2503 break;
2504 }
2505}
2506
2507// Report an unsupported relocation against a global symbol.
2508
2509template<int size, bool big_endian>
2510void
2511Target_sparc<size, big_endian>::Scan::unsupported_reloc_global(
6fa2a40b 2512 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 2513 unsigned int r_type,
2514 Symbol* gsym)
2515{
2516 gold_error(_("%s: unsupported reloc %u against global symbol %s"),
2517 object->name().c_str(), r_type, gsym->demangled_name().c_str());
2518}
2519
2520// Scan a relocation for a global symbol.
2521
2522template<int size, bool big_endian>
2523inline void
2524Target_sparc<size, big_endian>::Scan::global(
f5314dd5
DM		 2525 Symbol_table* symtab,
2526 Layout* layout,
2527 Target_sparc<size, big_endian>* target,
6fa2a40b 2528 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 2529 unsigned int data_shndx,
2530 Output_section* output_section,
2531 const elfcpp::Rela<size, big_endian>& reloc,
2532 unsigned int r_type,
2533 Symbol* gsym)
2534{
2535 unsigned int orig_r_type = r_type;
8c2bf391 2536 bool is_ifunc = gsym->type() == elfcpp::STT_GNU_IFUNC;
f5314dd5 2537
9efe6174
ILT		 2538 // A reference to _GLOBAL_OFFSET_TABLE_ implies that we need a got
2539 // section. We check here to avoid creating a dynamic reloc against
2540 // _GLOBAL_OFFSET_TABLE_.
2541 if (!target->has_got_section()
2542 && strcmp(gsym->name(), "_GLOBAL_OFFSET_TABLE_") == 0)
2543 target->got_section(symtab, layout);
2544
f5314dd5 2545 r_type &= 0xff;
8c2bf391
DM		 2546
2547 // A STT_GNU_IFUNC symbol may require a PLT entry.
2548 if (is_ifunc
2549 && this->reloc_needs_plt_for_ifunc(object, r_type))
2550 target->make_plt_entry(symtab, layout, gsym);
2551
f5314dd5
DM		 2552 switch (r_type)
2553 {
2554 case elfcpp::R_SPARC_NONE:
2555 case elfcpp::R_SPARC_REGISTER:
2556 case elfcpp::R_SPARC_GNU_VTINHERIT:
2557 case elfcpp::R_SPARC_GNU_VTENTRY:
2558 break;
2559
2560 case elfcpp::R_SPARC_PLT64:
2561 case elfcpp::R_SPARC_PLT32:
2562 case elfcpp::R_SPARC_HIPLT22:
2563 case elfcpp::R_SPARC_LOPLT10:
2564 case elfcpp::R_SPARC_PCPLT32:
2565 case elfcpp::R_SPARC_PCPLT22:
2566 case elfcpp::R_SPARC_PCPLT10:
2567 case elfcpp::R_SPARC_WPLT30:
2568 // If the symbol is fully resolved, this is just a PC32 reloc.
2569 // Otherwise we need a PLT entry.
2570 if (gsym->final_value_is_known())
2571 break;
2572 // If building a shared library, we can also skip the PLT entry
2573 // if the symbol is defined in the output file and is protected
2574 // or hidden.
2575 if (gsym->is_defined()
2576 && !gsym->is_from_dynobj()
2577 && !gsym->is_preemptible())
2578 break;
2579 target->make_plt_entry(symtab, layout, gsym);
2580 break;
2581
2582 case elfcpp::R_SPARC_DISP8:
2583 case elfcpp::R_SPARC_DISP16:
2584 case elfcpp::R_SPARC_DISP32:
2585 case elfcpp::R_SPARC_DISP64:
2586 case elfcpp::R_SPARC_PC_HH22:
2587 case elfcpp::R_SPARC_PC_HM10:
2588 case elfcpp::R_SPARC_PC_LM22:
2589 case elfcpp::R_SPARC_PC10:
2590 case elfcpp::R_SPARC_PC22:
2591 case elfcpp::R_SPARC_WDISP30:
2592 case elfcpp::R_SPARC_WDISP22:
2593 case elfcpp::R_SPARC_WDISP19:
2594 case elfcpp::R_SPARC_WDISP16:
2615994e 2595 case elfcpp::R_SPARC_WDISP10:
f5314dd5
DM		 2596 {
2597 if (gsym->needs_plt_entry())
2598 target->make_plt_entry(symtab, layout, gsym);
2599 // Make a dynamic relocation if necessary.
95a2c8d6 2600 if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type)))
f5314dd5 2601 {
966d4097 2602 if (gsym->may_need_copy_reloc())
f5314dd5 2603 {
12c0daef 2604 target->copy_reloc(symtab, layout, object,
f5314dd5
DM		 2605 data_shndx, output_section, gsym,
2606 reloc);
2607 }
2608 else
2609 {
2610 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
32b769e1 2611 check_non_pic(object, r_type);
f5314dd5
DM		 2612 rela_dyn->add_global(gsym, orig_r_type, output_section, object,
2613 data_shndx, reloc.get_r_offset(),
2614 reloc.get_r_addend());
2615 }
2616 }
2617 }
2618 break;
2619
2620 case elfcpp::R_SPARC_UA64:
2621 case elfcpp::R_SPARC_64:
2622 case elfcpp::R_SPARC_HIX22:
2623 case elfcpp::R_SPARC_LOX10:
2615994e 2624 case elfcpp::R_SPARC_H34:
f5314dd5
DM		 2625 case elfcpp::R_SPARC_H44:
2626 case elfcpp::R_SPARC_M44:
2627 case elfcpp::R_SPARC_L44:
2628 case elfcpp::R_SPARC_HH22:
2629 case elfcpp::R_SPARC_HM10:
2630 case elfcpp::R_SPARC_LM22:
2631 case elfcpp::R_SPARC_HI22:
2632 case elfcpp::R_SPARC_LO10:
2633 case elfcpp::R_SPARC_OLO10:
2634 case elfcpp::R_SPARC_UA32:
2635 case elfcpp::R_SPARC_32:
2636 case elfcpp::R_SPARC_UA16:
2637 case elfcpp::R_SPARC_16:
2638 case elfcpp::R_SPARC_11:
2639 case elfcpp::R_SPARC_10:
2640 case elfcpp::R_SPARC_8:
2641 case elfcpp::R_SPARC_7:
2642 case elfcpp::R_SPARC_6:
2643 case elfcpp::R_SPARC_5:
2644 {
2645 // Make a PLT entry if necessary.
2646 if (gsym->needs_plt_entry())
2647 {
2648 target->make_plt_entry(symtab, layout, gsym);
2649 // Since this is not a PC-relative relocation, we may be
2650 // taking the address of a function. In that case we need to
2651 // set the entry in the dynamic symbol table to the address of
2652 // the PLT entry.
2653 if (gsym->is_from_dynobj() && !parameters->options().shared())
2654 gsym->set_needs_dynsym_value();
2655 }
2656 // Make a dynamic relocation if necessary.
95a2c8d6 2657 if (gsym->needs_dynamic_reloc(Scan::get_reference_flags(r_type)))
f5314dd5 2658 {
0da6fa6c
DM		 2659 unsigned int r_off = reloc.get_r_offset();
2660
2661 // The assembler can sometimes emit unaligned relocations
2662 // for dwarf2 cfi directives.
2663 switch (r_type)
2664 {
2665 case elfcpp::R_SPARC_16:
2666 if (r_off & 0x1)
2667 orig_r_type = r_type = elfcpp::R_SPARC_UA16;
2668 break;
2669 case elfcpp::R_SPARC_32:
2670 if (r_off & 0x3)
2671 orig_r_type = r_type = elfcpp::R_SPARC_UA32;
2672 break;
2673 case elfcpp::R_SPARC_64:
2674 if (r_off & 0x7)
2675 orig_r_type = r_type = elfcpp::R_SPARC_UA64;
2676 break;
2677 case elfcpp::R_SPARC_UA16:
2678 if (!(r_off & 0x1))
2679 orig_r_type = r_type = elfcpp::R_SPARC_16;
2680 break;
2681 case elfcpp::R_SPARC_UA32:
2682 if (!(r_off & 0x3))
2683 orig_r_type = r_type = elfcpp::R_SPARC_32;
2684 break;
2685 case elfcpp::R_SPARC_UA64:
2686 if (!(r_off & 0x7))
2687 orig_r_type = r_type = elfcpp::R_SPARC_64;
2688 break;
2689 }
2690
966d4097 2691 if (gsym->may_need_copy_reloc())
f5314dd5 2692 {
12c0daef 2693 target->copy_reloc(symtab, layout, object,
f5314dd5
DM		 2694 data_shndx, output_section, gsym, reloc);
2695 }
8c2bf391
DM		 2696 else if (((size == 64 && r_type == elfcpp::R_SPARC_64)
2697 || (size == 32 && r_type == elfcpp::R_SPARC_32))
2698 && gsym->type() == elfcpp::STT_GNU_IFUNC
2699 && gsym->can_use_relative_reloc(false)
2700 && !gsym->is_from_dynobj()
2701 && !gsym->is_undefined()
2702 && !gsym->is_preemptible())
2703 {
2704 // Use an IRELATIVE reloc for a locally defined
2705 // STT_GNU_IFUNC symbol. This makes a function
2706 // address in a PIE executable match the address in a
2707 // shared library that it links against.
2708 Reloc_section* rela_dyn =
2709 target->rela_ifunc_section(layout);
2710 unsigned int r_type = elfcpp::R_SPARC_IRELATIVE;
2711 rela_dyn->add_symbolless_global_addend(gsym, r_type,
2712 output_section, object,
2713 data_shndx,
2714 reloc.get_r_offset(),
2715 reloc.get_r_addend());
2716 }
f5314dd5
DM		 2717 else if ((r_type == elfcpp::R_SPARC_32
2718 || r_type == elfcpp::R_SPARC_64)
2719 && gsym->can_use_relative_reloc(false))
2720 {
2721 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
2722 rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE,
2723 output_section, object,
2724 data_shndx, reloc.get_r_offset(),
8c2bf391 2725 reloc.get_r_addend(), is_ifunc);
f5314dd5
DM		 2726 }
2727 else
2728 {
2729 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
2730
32b769e1 2731 check_non_pic(object, r_type);
0da6fa6c
DM		 2732 if (gsym->is_from_dynobj()
2733 || gsym->is_undefined()
2734 || gsym->is_preemptible())
2735 rela_dyn->add_global(gsym, orig_r_type, output_section,
2736 object, data_shndx,
2737 reloc.get_r_offset(),
2738 reloc.get_r_addend());
2739 else
2740 rela_dyn->add_symbolless_global_addend(gsym, orig_r_type,
2741 output_section,
2742 object, data_shndx,
2743 reloc.get_r_offset(),
2744 reloc.get_r_addend());
f5314dd5
DM		 2745 }
2746 }
2747 }
2748 break;
2749
024c4466
DM		 2750 case elfcpp::R_SPARC_GOTDATA_OP:
2751 case elfcpp::R_SPARC_GOTDATA_OP_HIX22:
2752 case elfcpp::R_SPARC_GOTDATA_OP_LOX10:
2a1079e8
DM		 2753 if (gsym->is_defined()
2754 && !gsym->is_from_dynobj()
2755 && !gsym->is_preemptible()
2756 && !is_ifunc)
2757 {
2758 // We will optimize this into a GOT relative relocation
2759 // and code transform the GOT load into an addition.
2760 break;
2761 }
f5314dd5
DM		 2762 case elfcpp::R_SPARC_GOT10:
2763 case elfcpp::R_SPARC_GOT13:
2764 case elfcpp::R_SPARC_GOT22:
2765 {
2766 // The symbol requires a GOT entry.
2767 Output_data_got<size, big_endian>* got;
2768
2769 got = target->got_section(symtab, layout);
2770 if (gsym->final_value_is_known())
8c2bf391
DM		 2771 {
2772 // For a STT_GNU_IFUNC symbol we want the PLT address.
2773 if (gsym->type() == elfcpp::STT_GNU_IFUNC)
2774 got->add_global_plt(gsym, GOT_TYPE_STANDARD);
2775 else
2776 got->add_global(gsym, GOT_TYPE_STANDARD);
2777 }
f5314dd5
DM		 2778 else
2779 {
2780 // If this symbol is not fully resolved, we need to add a
8c2bf391
DM		 2781 // GOT entry with a dynamic relocation.
2782 bool is_ifunc = gsym->type() == elfcpp::STT_GNU_IFUNC;
2783
2784 // Use a GLOB_DAT rather than a RELATIVE reloc if:
2785 //
2786 // 1) The symbol may be defined in some other module.
2787 //
2788 // 2) We are building a shared library and this is a
2789 // protected symbol; using GLOB_DAT means that the dynamic
2790 // linker can use the address of the PLT in the main
2791 // executable when appropriate so that function address
2792 // comparisons work.
2793 //
2794 // 3) This is a STT_GNU_IFUNC symbol in position dependent
2795 // code, again so that function address comparisons work.
f5314dd5
DM		 2796 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
2797 if (gsym->is_from_dynobj()
2798 || gsym->is_undefined()
8c2bf391
DM		 2799 || gsym->is_preemptible()
2800 || (gsym->visibility() == elfcpp::STV_PROTECTED
2801 && parameters->options().shared())
2802 || (gsym->type() == elfcpp::STT_GNU_IFUNC
2803 && parameters->options().output_is_position_independent()
2804 && !gsym->is_forced_local()))
2805 {
2806 unsigned int r_type = elfcpp::R_SPARC_GLOB_DAT;
2807
2808 // If this symbol is forced local, this relocation will
2809 // not work properly. That's because ld.so on sparc
2810 // (and 32-bit powerpc) expects st_value in the r_addend
2811 // of relocations for STB_LOCAL symbols. Curiously the
2812 // BFD linker does not promote global hidden symbols to be
2813 // STB_LOCAL in the dynamic symbol table like Gold does.
2814 gold_assert(!gsym->is_forced_local());
2815 got->add_global_with_rel(gsym, GOT_TYPE_STANDARD, rela_dyn,
2816 r_type);
2817 }
f5314dd5
DM		 2818 else if (!gsym->has_got_offset(GOT_TYPE_STANDARD))
2819 {
2820 unsigned int off = got->add_constant(0);
2821
2822 gsym->set_got_offset(GOT_TYPE_STANDARD, off);
8c2bf391
DM		 2823 if (is_ifunc)
2824 {
2825 // Tell the dynamic linker to use the PLT address
2826 // when resolving relocations.
2827 if (gsym->is_from_dynobj()
2828 && !parameters->options().shared())
2829 gsym->set_needs_dynsym_value();
2830 }
f5314dd5 2831 rela_dyn->add_global_relative(gsym, elfcpp::R_SPARC_RELATIVE,
8c2bf391 2832 got, off, 0, is_ifunc);
f5314dd5
DM		 2833 }
2834 }
2835 }
2836 break;
2837
2838 // These are initial tls relocs, which are expected when
2839 // linking.
2840 case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
2841 case elfcpp::R_SPARC_TLS_GD_LO10:
2842 case elfcpp::R_SPARC_TLS_GD_ADD:
2843 case elfcpp::R_SPARC_TLS_GD_CALL:
2844 case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic
2845 case elfcpp::R_SPARC_TLS_LDM_LO10:
2846 case elfcpp::R_SPARC_TLS_LDM_ADD:
2847 case elfcpp::R_SPARC_TLS_LDM_CALL:
2848 case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
2849 case elfcpp::R_SPARC_TLS_LDO_LOX10:
2850 case elfcpp::R_SPARC_TLS_LDO_ADD:
2851 case elfcpp::R_SPARC_TLS_LE_HIX22:
2852 case elfcpp::R_SPARC_TLS_LE_LOX10:
2853 case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec
2854 case elfcpp::R_SPARC_TLS_IE_LO10:
2855 case elfcpp::R_SPARC_TLS_IE_LD:
2856 case elfcpp::R_SPARC_TLS_IE_LDX:
9efe6174 2857 case elfcpp::R_SPARC_TLS_IE_ADD:
f5314dd5
DM		 2858 {
2859 const bool is_final = gsym->final_value_is_known();
2860 const tls::Tls_optimization optimized_type
2861 = optimize_tls_reloc(is_final, r_type);
2862 switch (r_type)
2863 {
2864 case elfcpp::R_SPARC_TLS_GD_HI22: // Global-dynamic
2865 case elfcpp::R_SPARC_TLS_GD_LO10:
2866 case elfcpp::R_SPARC_TLS_GD_ADD:
2867 case elfcpp::R_SPARC_TLS_GD_CALL:
2868 if (optimized_type == tls::TLSOPT_NONE)
2869 {
2870 // Create a pair of GOT entries for the module index and
2871 // dtv-relative offset.
2872 Output_data_got<size, big_endian>* got
2873 = target->got_section(symtab, layout);
83896202
ILT		 2874 got->add_global_pair_with_rel(gsym, GOT_TYPE_TLS_PAIR,
2875 target->rela_dyn_section(layout),
2876 (size == 64
2877 ? elfcpp::R_SPARC_TLS_DTPMOD64
2878 : elfcpp::R_SPARC_TLS_DTPMOD32),
2879 (size == 64
2880 ? elfcpp::R_SPARC_TLS_DTPOFF64
2881 : elfcpp::R_SPARC_TLS_DTPOFF32));
f5314dd5
DM		 2882
2883 // Emit R_SPARC_WPLT30 against "__tls_get_addr"
2884 if (r_type == elfcpp::R_SPARC_TLS_GD_CALL)
2885 generate_tls_call(symtab, layout, target);
2886 }
2887 else if (optimized_type == tls::TLSOPT_TO_IE)
2888 {
2889 // Create a GOT entry for the tp-relative offset.
2890 Output_data_got<size, big_endian>* got
2891 = target->got_section(symtab, layout);
83896202
ILT		 2892 got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET,
2893 target->rela_dyn_section(layout),
2894 (size == 64 ?
2895 elfcpp::R_SPARC_TLS_TPOFF64 :
2896 elfcpp::R_SPARC_TLS_TPOFF32));
f5314dd5
DM		 2897 }
2898 else if (optimized_type != tls::TLSOPT_TO_LE)
2899 unsupported_reloc_global(object, r_type, gsym);
2900 break;
2901
2902 case elfcpp::R_SPARC_TLS_LDM_HI22: // Local-dynamic
2903 case elfcpp::R_SPARC_TLS_LDM_LO10:
2904 case elfcpp::R_SPARC_TLS_LDM_ADD:
2905 case elfcpp::R_SPARC_TLS_LDM_CALL:
2906 if (optimized_type == tls::TLSOPT_NONE)
2907 {
2908 // Create a GOT entry for the module index.
2909 target->got_mod_index_entry(symtab, layout, object);
2910
2911 if (r_type == elfcpp::R_SPARC_TLS_LDM_CALL)
2912 generate_tls_call(symtab, layout, target);
2913 }
2914 else if (optimized_type != tls::TLSOPT_TO_LE)
2915 unsupported_reloc_global(object, r_type, gsym);
2916 break;
2917
2918 case elfcpp::R_SPARC_TLS_LDO_HIX22: // Alternate local-dynamic
2919 case elfcpp::R_SPARC_TLS_LDO_LOX10:
2920 case elfcpp::R_SPARC_TLS_LDO_ADD:
2921 break;
2922
2923 case elfcpp::R_SPARC_TLS_LE_HIX22:
2924 case elfcpp::R_SPARC_TLS_LE_LOX10:
2925 layout->set_has_static_tls();
2926 if (parameters->options().shared())
2927 {
2928 Reloc_section* rela_dyn = target->rela_dyn_section(layout);
0da6fa6c
DM		 2929 rela_dyn->add_symbolless_global_addend(gsym, orig_r_type,
2930 output_section, object,
2931 data_shndx, reloc.get_r_offset(),
2932 0);
f5314dd5
DM		 2933 }
2934 break;
2935
2936 case elfcpp::R_SPARC_TLS_IE_HI22: // Initial-exec
2937 case elfcpp::R_SPARC_TLS_IE_LO10:
2938 case elfcpp::R_SPARC_TLS_IE_LD:
2939 case elfcpp::R_SPARC_TLS_IE_LDX:
9efe6174 2940 case elfcpp::R_SPARC_TLS_IE_ADD:
f5314dd5
DM		 2941 layout->set_has_static_tls();
2942 if (optimized_type == tls::TLSOPT_NONE)
2943 {
2944 // Create a GOT entry for the tp-relative offset.
2945 Output_data_got<size, big_endian>* got
2946 = target->got_section(symtab, layout);
83896202
ILT		 2947 got->add_global_with_rel(gsym, GOT_TYPE_TLS_OFFSET,
2948 target->rela_dyn_section(layout),
2949 (size == 64
2950 ? elfcpp::R_SPARC_TLS_TPOFF64
2951 : elfcpp::R_SPARC_TLS_TPOFF32));
f5314dd5
DM		 2952 }
2953 else if (optimized_type != tls::TLSOPT_TO_LE)
2954 unsupported_reloc_global(object, r_type, gsym);
2955 break;
2956 }
2957 }
2958 break;
2959
2960 // These are relocations which should only be seen by the
2961 // dynamic linker, and should never be seen here.
2962 case elfcpp::R_SPARC_COPY:
2963 case elfcpp::R_SPARC_GLOB_DAT:
2964 case elfcpp::R_SPARC_JMP_SLOT:
8c2bf391 2965 case elfcpp::R_SPARC_JMP_IREL:
f5314dd5 2966 case elfcpp::R_SPARC_RELATIVE:
8c2bf391 2967 case elfcpp::R_SPARC_IRELATIVE:
f5314dd5
DM		 2968 case elfcpp::R_SPARC_TLS_DTPMOD64:
2969 case elfcpp::R_SPARC_TLS_DTPMOD32:
2970 case elfcpp::R_SPARC_TLS_DTPOFF64:
2971 case elfcpp::R_SPARC_TLS_DTPOFF32:
2972 case elfcpp::R_SPARC_TLS_TPOFF64:
2973 case elfcpp::R_SPARC_TLS_TPOFF32:
2974 gold_error(_("%s: unexpected reloc %u in object file"),
2975 object->name().c_str(), r_type);
2976 break;
2977
2978 default:
2979 unsupported_reloc_global(object, r_type, gsym);
2980 break;
2981 }
2982}
2983
6d03d481
ST		 2984// Process relocations for gc.
2985
2986template<int size, bool big_endian>
2987void
2988Target_sparc<size, big_endian>::gc_process_relocs(
6d03d481
ST		 2989 Symbol_table* symtab,
2990 Layout* layout,
6fa2a40b 2991 Sized_relobj_file<size, big_endian>* object,
6d03d481
ST		 2992 unsigned int data_shndx,
2993 unsigned int,
2994 const unsigned char* prelocs,
2995 size_t reloc_count,
2996 Output_section* output_section,
2997 bool needs_special_offset_handling,
2998 size_t local_symbol_count,
2999 const unsigned char* plocal_symbols)
3000{
3001 typedef Target_sparc<size, big_endian> Sparc;
2ea97941 3002 typedef typename Target_sparc<size, big_endian>::Scan Scan;
6d03d481 3003
41cbeecc 3004 gold::gc_process_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan,
3ff2ccb0 3005 typename Target_sparc::Relocatable_size_for_reloc>(
6d03d481
ST		 3006 symtab,
3007 layout,
3008 this,
3009 object,
3010 data_shndx,
3011 prelocs,
3012 reloc_count,
3013 output_section,
3014 needs_special_offset_handling,
3015 local_symbol_count,
3016 plocal_symbols);
3017}
3018
f5314dd5
DM		 3019// Scan relocations for a section.
3020
3021template<int size, bool big_endian>
3022void
3023Target_sparc<size, big_endian>::scan_relocs(
f5314dd5
DM		 3024 Symbol_table* symtab,
3025 Layout* layout,
6fa2a40b 3026 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 3027 unsigned int data_shndx,
3028 unsigned int sh_type,
3029 const unsigned char* prelocs,
3030 size_t reloc_count,
3031 Output_section* output_section,
3032 bool needs_special_offset_handling,
3033 size_t local_symbol_count,
3034 const unsigned char* plocal_symbols)
3035{
3036 typedef Target_sparc<size, big_endian> Sparc;
2ea97941 3037 typedef typename Target_sparc<size, big_endian>::Scan Scan;
f5314dd5
DM		 3038
3039 if (sh_type == elfcpp::SHT_REL)
3040 {
3041 gold_error(_("%s: unsupported REL reloc section"),
3042 object->name().c_str());
3043 return;
3044 }
3045
2ea97941 3046 gold::scan_relocs<size, big_endian, Sparc, elfcpp::SHT_RELA, Scan>(
f5314dd5
DM		 3047 symtab,
3048 layout,
3049 this,
3050 object,
3051 data_shndx,
3052 prelocs,
3053 reloc_count,
3054 output_section,
3055 needs_special_offset_handling,
3056 local_symbol_count,
3057 plocal_symbols);
3058}
3059
3060// Finalize the sections.
3061
3062template<int size, bool big_endian>
3063void
d5b40221
DK		 3064Target_sparc<size, big_endian>::do_finalize_sections(
3065 Layout* layout,
f59f41f3 3066 const Input_objects*,
8c2bf391 3067 Symbol_table* symtab)
f5314dd5 3068{
8c2bf391
DM		 3069 if (this->plt_)
3070 this->plt_->emit_pending_ifunc_relocs();
3071
f5314dd5 3072 // Fill in some more dynamic tags.
ea715a34
ILT		 3073 const Reloc_section* rel_plt = (this->plt_ == NULL
3074 ? NULL
3075 : this->plt_->rel_plt());
3076 layout->add_target_dynamic_tags(false, this->plt_, rel_plt,
612a8d3d 3077 this->rela_dyn_, true, true);
f5314dd5
DM		 3078
3079 // Emit any relocs we saved in an attempt to avoid generating COPY
3080 // relocs.
12c0daef
ILT		 3081 if (this->copy_relocs_.any_saved_relocs())
3082 this->copy_relocs_.emit(this->rela_dyn_section(layout));
8c2bf391
DM		 3083
3084 if (parameters->doing_static_link()
3085 && (this->plt_ == NULL || !this->plt_->has_ifunc_section()))
3086 {
3087 // If linking statically, make sure that the __rela_iplt symbols
3088 // were defined if necessary, even if we didn't create a PLT.
3089 static const Define_symbol_in_segment syms[] =
3090 {
3091 {
3092 "__rela_iplt_start", // name
3093 elfcpp::PT_LOAD, // segment_type
3094 elfcpp::PF_W, // segment_flags_set
3095 elfcpp::PF(0), // segment_flags_clear
3096 0, // value
3097 0, // size
3098 elfcpp::STT_NOTYPE, // type
3099 elfcpp::STB_GLOBAL, // binding
3100 elfcpp::STV_HIDDEN, // visibility
3101 0, // nonvis
3102 Symbol::SEGMENT_START, // offset_from_base
3103 true // only_if_ref
3104 },
3105 {
3106 "__rela_iplt_end", // name
3107 elfcpp::PT_LOAD, // segment_type
3108 elfcpp::PF_W, // segment_flags_set
3109 elfcpp::PF(0), // segment_flags_clear
3110 0, // value
3111 0, // size
3112 elfcpp::STT_NOTYPE, // type
3113 elfcpp::STB_GLOBAL, // binding
3114 elfcpp::STV_HIDDEN, // visibility
3115 0, // nonvis
3116 Symbol::SEGMENT_START, // offset_from_base
3117 true // only_if_ref
3118 }
3119 };
3120
3121 symtab->define_symbols(layout, 2, syms,
3122 layout->script_options()->saw_sections_clause());
3123 }
f5314dd5
DM		 3124}
3125
3126// Perform a relocation.
3127
3128template<int size, bool big_endian>
3129inline bool
3130Target_sparc<size, big_endian>::Relocate::relocate(
3131 const Relocate_info<size, big_endian>* relinfo,
3132 Target_sparc* target,
031cdbed 3133 Output_section*,
f5314dd5
DM		 3134 size_t relnum,
3135 const elfcpp::Rela<size, big_endian>& rela,
3136 unsigned int r_type,
3137 const Sized_symbol<size>* gsym,
3138 const Symbol_value<size>* psymval,
3139 unsigned char* view,
3140 typename elfcpp::Elf_types<size>::Elf_Addr address,
3141 section_size_type view_size)
3142{
2a1079e8 3143 bool orig_is_ifunc = psymval->is_ifunc_symbol();
f5314dd5
DM		 3144 r_type &= 0xff;
3145
3146 if (this->ignore_gd_add_)
3147 {
3148 if (r_type != elfcpp::R_SPARC_TLS_GD_ADD)
3149 gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
3150 _("missing expected TLS relocation"));
3151 else
3152 {
3153 this->ignore_gd_add_ = false;
3154 return false;
3155 }
3156 }
abd242a9
DM		 3157 if (this->reloc_adjust_addr_ == view)
3158 view -= 4;
f5314dd5
DM		 3159
3160 typedef Sparc_relocate_functions<size, big_endian> Reloc;
8c2bf391 3161 const Sized_relobj_file<size, big_endian>* object = relinfo->object;
f5314dd5
DM		 3162
3163 // Pick the value to use for symbols defined in shared objects.
3164 Symbol_value<size> symval;
3165 if (gsym != NULL
95a2c8d6 3166 && gsym->use_plt_offset(Scan::get_reference_flags(r_type)))
f5314dd5 3167 {
2ea97941 3168 elfcpp::Elf_Xword value;
f5314dd5 3169
8c2bf391 3170 value = target->plt_address_for_global(gsym) + gsym->plt_offset();
f5314dd5 3171
2ea97941 3172 symval.set_output_value(value);
f5314dd5
DM		 3173
3174 psymval = &symval;
3175 }
2a1079e8 3176 else if (gsym == NULL && orig_is_ifunc)
8c2bf391
DM		 3177 {
3178 unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
3179 if (object->local_has_plt_offset(r_sym))
3180 {
3181 symval.set_output_value(target->plt_address_for_local(object, r_sym)
3182 + object->local_plt_offset(r_sym));
3183 psymval = &symval;
3184 }
3185 }
f5314dd5 3186
f5314dd5
DM		 3187 const elfcpp::Elf_Xword addend = rela.get_r_addend();
3188
3189 // Get the GOT offset if needed. Unlike i386 and x86_64, our GOT
3190 // pointer points to the beginning, not the end, of the table.
3191 // So we just use the plain offset.
f5314dd5 3192 unsigned int got_offset = 0;
2a1079e8 3193 bool gdop_valid = false;
f5314dd5
DM		 3194 switch (r_type)
3195 {
024c4466
DM		 3196 case elfcpp::R_SPARC_GOTDATA_OP:
3197 case elfcpp::R_SPARC_GOTDATA_OP_HIX22:
3198 case elfcpp::R_SPARC_GOTDATA_OP_LOX10:
2a1079e8
DM		 3199 // If this is local, we did not create a GOT entry because we
3200 // intend to transform this into a GOT relative relocation.
3201 if (gsym == NULL
3202 || (gsym->is_defined()
3203 && !gsym->is_from_dynobj()
3204 && !gsym->is_preemptible()
3205 && !orig_is_ifunc))
3206 {
3207 got_offset = psymval->value(object, 0) - target->got_address();
3208 gdop_valid = true;
3209 break;
3210 }
f5314dd5
DM		 3211 case elfcpp::R_SPARC_GOT10:
3212 case elfcpp::R_SPARC_GOT13:
3213 case elfcpp::R_SPARC_GOT22:
3214 if (gsym != NULL)
3215 {
3216 gold_assert(gsym->has_got_offset(GOT_TYPE_STANDARD));
3217 got_offset = gsym->got_offset(GOT_TYPE_STANDARD);
3218 }
3219 else
3220 {
3221 unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
3222 gold_assert(object->local_has_got_offset(r_sym, GOT_TYPE_STANDARD));
3223 got_offset = object->local_got_offset(r_sym, GOT_TYPE_STANDARD);
3224 }
f5314dd5
DM		 3225 break;
3226
3227 default:
3228 break;
3229 }
3230
3231 switch (r_type)
3232 {
3233 case elfcpp::R_SPARC_NONE:
3234 case elfcpp::R_SPARC_REGISTER:
3235 case elfcpp::R_SPARC_GNU_VTINHERIT:
3236 case elfcpp::R_SPARC_GNU_VTENTRY:
3237 break;
3238
3239 case elfcpp::R_SPARC_8:
3240 Relocate_functions<size, big_endian>::rela8(view, object,
3241 psymval, addend);
3242 break;
3243
3244 case elfcpp::R_SPARC_16:
705b5121
DM		 3245 if (rela.get_r_offset() & 0x1)
3246 {
3247 // The assembler can sometimes emit unaligned relocations
3248 // for dwarf2 cfi directives.
3249 Reloc::ua16(view, object, psymval, addend);
3250 }
3251 else
3252 Relocate_functions<size, big_endian>::rela16(view, object,
3253 psymval, addend);
f5314dd5
DM		 3254 break;
3255
3256 case elfcpp::R_SPARC_32:
3257 if (!parameters->options().output_is_position_independent())
705b5121
DM		 3258 {
3259 if (rela.get_r_offset() & 0x3)
3260 {
3261 // The assembler can sometimes emit unaligned relocations
3262 // for dwarf2 cfi directives.
3263 Reloc::ua32(view, object, psymval, addend);
3264 }
3265 else
3266 Relocate_functions<size, big_endian>::rela32(view, object,
3267 psymval, addend);
3268 }
f5314dd5
DM		 3269 break;
3270
3271 case elfcpp::R_SPARC_DISP8:
3272 Reloc::disp8(view, object, psymval, addend, address);
3273 break;
3274
3275 case elfcpp::R_SPARC_DISP16:
3276 Reloc::disp16(view, object, psymval, addend, address);
3277 break;
3278
3279 case elfcpp::R_SPARC_DISP32:
3280 Reloc::disp32(view, object, psymval, addend, address);
3281 break;
3282
3283 case elfcpp::R_SPARC_DISP64:
3284 Reloc::disp64(view, object, psymval, addend, address);
3285 break;
3286
3287 case elfcpp::R_SPARC_WDISP30:
3288 case elfcpp::R_SPARC_WPLT30:
3289 Reloc::wdisp30(view, object, psymval, addend, address);
3290 break;
3291
3292 case elfcpp::R_SPARC_WDISP22:
3293 Reloc::wdisp22(view, object, psymval, addend, address);
3294 break;
3295
3296 case elfcpp::R_SPARC_WDISP19:
3297 Reloc::wdisp19(view, object, psymval, addend, address);
3298 break;
3299
3300 case elfcpp::R_SPARC_WDISP16:
3301 Reloc::wdisp16(view, object, psymval, addend, address);
3302 break;
3303
2615994e
DM		 3304 case elfcpp::R_SPARC_WDISP10:
3305 Reloc::wdisp10(view, object, psymval, addend, address);
3306 break;
3307
f5314dd5
DM		 3308 case elfcpp::R_SPARC_HI22:
3309 Reloc::hi22(view, object, psymval, addend);
3310 break;
3311
3312 case elfcpp::R_SPARC_22:
3313 Reloc::rela32_22(view, object, psymval, addend);
3314 break;
3315
3316 case elfcpp::R_SPARC_13:
3317 Reloc::rela32_13(view, object, psymval, addend);
3318 break;
3319
3320 case elfcpp::R_SPARC_LO10:
3321 Reloc::lo10(view, object, psymval, addend);
3322 break;
3323
3324 case elfcpp::R_SPARC_GOT10:
3325 Reloc::lo10(view, got_offset, addend);
3326 break;
3327
024c4466 3328 case elfcpp::R_SPARC_GOTDATA_OP:
2a1079e8
DM		 3329 if (gdop_valid)
3330 {
3331 typedef typename elfcpp::Swap<32, true>::Valtype Insntype;
3332 Insntype* wv = reinterpret_cast<Insntype*>(view);
3333 Insntype val;
3334
3335 // {ld,ldx} [%rs1 + %rs2], %rd --> add %rs1, %rs2, %rd
3336 val = elfcpp::Swap<32, true>::readval(wv);
3337 val = 0x80000000 | (val & 0x3e07c01f);
3338 elfcpp::Swap<32, true>::writeval(wv, val);
3339 }
024c4466
DM		 3340 break;
3341
3342 case elfcpp::R_SPARC_GOTDATA_OP_LOX10:
2a1079e8
DM		 3343 if (gdop_valid)
3344 {
3345 Reloc::gdop_lox10(view, got_offset, addend);
3346 break;
3347 }
3348 /* Fall through. */
f5314dd5
DM		 3349 case elfcpp::R_SPARC_GOT13:
3350 Reloc::rela32_13(view, got_offset, addend);
3351 break;
3352
024c4466 3353 case elfcpp::R_SPARC_GOTDATA_OP_HIX22:
2a1079e8
DM		 3354 if (gdop_valid)
3355 {
3356 Reloc::gdop_hix22(view, got_offset, addend);
3357 break;
3358 }
3359 /* Fall through. */
f5314dd5
DM		 3360 case elfcpp::R_SPARC_GOT22:
3361 Reloc::hi22(view, got_offset, addend);
3362 break;
3363
3364 case elfcpp::R_SPARC_PC10:
3365 Reloc::pc10(view, object, psymval, addend, address);
3366 break;
3367
3368 case elfcpp::R_SPARC_PC22:
3369 Reloc::pc22(view, object, psymval, addend, address);
3370 break;
3371
3372 case elfcpp::R_SPARC_TLS_DTPOFF32:
3373 case elfcpp::R_SPARC_UA32:
3374 Reloc::ua32(view, object, psymval, addend);
3375 break;
3376
3377 case elfcpp::R_SPARC_PLT64:
3378 Relocate_functions<size, big_endian>::rela64(view, object,
3379 psymval, addend);
3380 break;
3381
3382 case elfcpp::R_SPARC_PLT32:
3383 Relocate_functions<size, big_endian>::rela32(view, object,
3384 psymval, addend);
3385 break;
3386
3387 case elfcpp::R_SPARC_HIPLT22:
3388 Reloc::hi22(view, object, psymval, addend);
3389 break;
3390
3391 case elfcpp::R_SPARC_LOPLT10:
3392 Reloc::lo10(view, object, psymval, addend);
3393 break;
3394
3395 case elfcpp::R_SPARC_PCPLT32:
3396 Reloc::disp32(view, object, psymval, addend, address);
3397 break;
3398
3399 case elfcpp::R_SPARC_PCPLT22:
3400 Reloc::pcplt22(view, object, psymval, addend, address);
3401 break;
3402
3403 case elfcpp::R_SPARC_PCPLT10:
3404 Reloc::lo10(view, object, psymval, addend, address);
3405 break;
3406
3407 case elfcpp::R_SPARC_64:
3408 if (!parameters->options().output_is_position_independent())
705b5121
DM		 3409 {
3410 if (rela.get_r_offset() & 0x7)
3411 {
3412 // The assembler can sometimes emit unaligned relocations
3413 // for dwarf2 cfi directives.
3414 Reloc::ua64(view, object, psymval, addend);
3415 }
3416 else
3417 Relocate_functions<size, big_endian>::rela64(view, object,
3418 psymval, addend);
3419 }
f5314dd5
DM		 3420 break;
3421
3422 case elfcpp::R_SPARC_OLO10:
3423 {
3424 unsigned int addend2 = rela.get_r_info() & 0xffffffff;
3425 addend2 = ((addend2 >> 8) ^ 0x800000) - 0x800000;
3426 Reloc::olo10(view, object, psymval, addend, addend2);
3427 }
3428 break;
3429
3430 case elfcpp::R_SPARC_HH22:
3431 Reloc::hh22(view, object, psymval, addend);
3432 break;
3433
3434 case elfcpp::R_SPARC_PC_HH22:
3435 Reloc::pc_hh22(view, object, psymval, addend, address);
3436 break;
3437
3438 case elfcpp::R_SPARC_HM10:
3439 Reloc::hm10(view, object, psymval, addend);
3440 break;
3441
3442 case elfcpp::R_SPARC_PC_HM10:
3443 Reloc::pc_hm10(view, object, psymval, addend, address);
3444 break;
3445
3446 case elfcpp::R_SPARC_LM22:
3447 Reloc::hi22(view, object, psymval, addend);
3448 break;
3449
3450 case elfcpp::R_SPARC_PC_LM22:
3451 Reloc::pcplt22(view, object, psymval, addend, address);
3452 break;
3453
3454 case elfcpp::R_SPARC_11:
3455 Reloc::rela32_11(view, object, psymval, addend);
3456 break;
3457
3458 case elfcpp::R_SPARC_10:
3459 Reloc::rela32_10(view, object, psymval, addend);
3460 break;
3461
3462 case elfcpp::R_SPARC_7:
3463 Reloc::rela32_7(view, object, psymval, addend);
3464 break;
3465
3466 case elfcpp::R_SPARC_6:
3467 Reloc::rela32_6(view, object, psymval, addend);
3468 break;
3469
3470 case elfcpp::R_SPARC_5:
3471 Reloc::rela32_5(view, object, psymval, addend);
3472 break;
3473
3474 case elfcpp::R_SPARC_HIX22:
3475 Reloc::hix22(view, object, psymval, addend);
3476 break;
3477
3478 case elfcpp::R_SPARC_LOX10:
3479 Reloc::lox10(view, object, psymval, addend);
3480 break;
3481
2615994e
DM		 3482 case elfcpp::R_SPARC_H34:
3483 Reloc::h34(view, object, psymval, addend);
3484 break;
3485
f5314dd5
DM		 3486 case elfcpp::R_SPARC_H44:
3487 Reloc::h44(view, object, psymval, addend);
3488 break;
3489
3490 case elfcpp::R_SPARC_M44:
3491 Reloc::m44(view, object, psymval, addend);
3492 break;
3493
3494 case elfcpp::R_SPARC_L44:
3495 Reloc::l44(view, object, psymval, addend);
3496 break;
3497
3498 case elfcpp::R_SPARC_TLS_DTPOFF64:
3499 case elfcpp::R_SPARC_UA64:
3500 Reloc::ua64(view, object, psymval, addend);
3501 break;
3502
3503 case elfcpp::R_SPARC_UA16:
3504 Reloc::ua16(view, object, psymval, addend);
3505 break;
3506
3507 case elfcpp::R_SPARC_TLS_GD_HI22:
3508 case elfcpp::R_SPARC_TLS_GD_LO10:
3509 case elfcpp::R_SPARC_TLS_GD_ADD:
3510 case elfcpp::R_SPARC_TLS_GD_CALL:
3511 case elfcpp::R_SPARC_TLS_LDM_HI22:
3512 case elfcpp::R_SPARC_TLS_LDM_LO10:
3513 case elfcpp::R_SPARC_TLS_LDM_ADD:
3514 case elfcpp::R_SPARC_TLS_LDM_CALL:
3515 case elfcpp::R_SPARC_TLS_LDO_HIX22:
3516 case elfcpp::R_SPARC_TLS_LDO_LOX10:
3517 case elfcpp::R_SPARC_TLS_LDO_ADD:
3518 case elfcpp::R_SPARC_TLS_IE_HI22:
3519 case elfcpp::R_SPARC_TLS_IE_LO10:
3520 case elfcpp::R_SPARC_TLS_IE_LD:
3521 case elfcpp::R_SPARC_TLS_IE_LDX:
9efe6174 3522 case elfcpp::R_SPARC_TLS_IE_ADD:
f5314dd5
DM		 3523 case elfcpp::R_SPARC_TLS_LE_HIX22:
3524 case elfcpp::R_SPARC_TLS_LE_LOX10:
3525 this->relocate_tls(relinfo, target, relnum, rela,
3526 r_type, gsym, psymval, view,
3527 address, view_size);
3528 break;
3529
3530 case elfcpp::R_SPARC_COPY:
3531 case elfcpp::R_SPARC_GLOB_DAT:
3532 case elfcpp::R_SPARC_JMP_SLOT:
8c2bf391 3533 case elfcpp::R_SPARC_JMP_IREL:
f5314dd5 3534 case elfcpp::R_SPARC_RELATIVE:
8c2bf391 3535 case elfcpp::R_SPARC_IRELATIVE:
f5314dd5
DM		 3536 // These are outstanding tls relocs, which are unexpected when
3537 // linking.
3538 case elfcpp::R_SPARC_TLS_DTPMOD64:
3539 case elfcpp::R_SPARC_TLS_DTPMOD32:
3540 case elfcpp::R_SPARC_TLS_TPOFF64:
3541 case elfcpp::R_SPARC_TLS_TPOFF32:
3542 gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
3543 _("unexpected reloc %u in object file"),
3544 r_type);
3545 break;
3546
3547 default:
3548 gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
3549 _("unsupported reloc %u"),
3550 r_type);
3551 break;
3552 }
3553
3554 return true;
3555}
3556
3557// Perform a TLS relocation.
3558
3559template<int size, bool big_endian>
3560inline void
3561Target_sparc<size, big_endian>::Relocate::relocate_tls(
3562 const Relocate_info<size, big_endian>* relinfo,
3563 Target_sparc<size, big_endian>* target,
3564 size_t relnum,
3565 const elfcpp::Rela<size, big_endian>& rela,
3566 unsigned int r_type,
3567 const Sized_symbol<size>* gsym,
3568 const Symbol_value<size>* psymval,
3569 unsigned char* view,
3570 typename elfcpp::Elf_types<size>::Elf_Addr address,
3571 section_size_type)
3572{
3573 Output_segment* tls_segment = relinfo->layout->tls_segment();
3574 typedef Sparc_relocate_functions<size, big_endian> Reloc;
6fa2a40b 3575 const Sized_relobj_file<size, big_endian>* object = relinfo->object;
f5314dd5
DM		 3576 typedef typename elfcpp::Swap<32, true>::Valtype Insntype;
3577
3578 const elfcpp::Elf_Xword addend = rela.get_r_addend();
2ea97941 3579 typename elfcpp::Elf_types<size>::Elf_Addr value = psymval->value(object, 0);
f5314dd5
DM		 3580
3581 const bool is_final =
3582 (gsym == NULL
3583 ? !parameters->options().output_is_position_independent()
3584 : gsym->final_value_is_known());
3585 const tls::Tls_optimization optimized_type
3586 = optimize_tls_reloc(is_final, r_type);
3587
3588 switch (r_type)
3589 {
3590 case elfcpp::R_SPARC_TLS_GD_HI22:
3591 case elfcpp::R_SPARC_TLS_GD_LO10:
3592 case elfcpp::R_SPARC_TLS_GD_ADD:
3593 case elfcpp::R_SPARC_TLS_GD_CALL:
3594 if (optimized_type == tls::TLSOPT_TO_LE)
3595 {
3596 Insntype* wv = reinterpret_cast<Insntype*>(view);
3597 Insntype val;
3598
2ea97941 3599 value -= tls_segment->memsz();
f5314dd5
DM		 3600
3601 switch (r_type)
3602 {
3603 case elfcpp::R_SPARC_TLS_GD_HI22:
3604 // TLS_GD_HI22 --> TLS_LE_HIX22
2ea97941 3605 Reloc::hix22(view, value, addend);
f5314dd5
DM		 3606 break;
3607
3608 case elfcpp::R_SPARC_TLS_GD_LO10:
3609 // TLS_GD_LO10 --> TLS_LE_LOX10
2ea97941 3610 Reloc::lox10(view, value, addend);
f5314dd5
DM		 3611 break;
3612
3613 case elfcpp::R_SPARC_TLS_GD_ADD:
3614 // add %reg1, %reg2, %reg3 --> mov %g7, %reg2, %reg3
3615 val = elfcpp::Swap<32, true>::readval(wv);
3616 val = (val & ~0x7c000) | 0x1c000;
3617 elfcpp::Swap<32, true>::writeval(wv, val);
3618 break;
3619 case elfcpp::R_SPARC_TLS_GD_CALL:
3620 // call __tls_get_addr --> nop
3621 elfcpp::Swap<32, true>::writeval(wv, sparc_nop);
3622 break;
3623 }
3624 break;
3625 }
3626 else
3627 {
3628 unsigned int got_type = (optimized_type == tls::TLSOPT_TO_IE
3629 ? GOT_TYPE_TLS_OFFSET
3630 : GOT_TYPE_TLS_PAIR);
3631 if (gsym != NULL)
3632 {
3633 gold_assert(gsym->has_got_offset(got_type));
2ea97941 3634 value = gsym->got_offset(got_type);
f5314dd5
DM		 3635 }
3636 else
3637 {
3638 unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
3639 gold_assert(object->local_has_got_offset(r_sym, got_type));
2ea97941 3640 value = object->local_got_offset(r_sym, got_type);
f5314dd5
DM		 3641 }
3642 if (optimized_type == tls::TLSOPT_TO_IE)
3643 {
3644 Insntype* wv = reinterpret_cast<Insntype*>(view);
3645 Insntype val;
3646
3647 switch (r_type)
3648 {
3649 case elfcpp::R_SPARC_TLS_GD_HI22:
3650 // TLS_GD_HI22 --> TLS_IE_HI22
2ea97941 3651 Reloc::hi22(view, value, addend);
f5314dd5
DM		 3652 break;
3653
3654 case elfcpp::R_SPARC_TLS_GD_LO10:
3655 // TLS_GD_LO10 --> TLS_IE_LO10
2ea97941 3656 Reloc::lo10(view, value, addend);
f5314dd5
DM		 3657 break;
3658
3659 case elfcpp::R_SPARC_TLS_GD_ADD:
3660 // add %reg1, %reg2, %reg3 --> ld [%reg1 + %reg2], %reg3
3661 val = elfcpp::Swap<32, true>::readval(wv);
3662
3663 if (size == 64)
3664 val |= 0xc0580000;
3665 else
3666 val |= 0xc0000000;
3667
3668 elfcpp::Swap<32, true>::writeval(wv, val);
3669 break;
3670
3671 case elfcpp::R_SPARC_TLS_GD_CALL:
3672 // The compiler can put the TLS_GD_ADD instruction
3673 // into the delay slot of the call. If so, we need
3674 // to transpose the two instructions so that the
9b547ce6 3675 // new sequence works properly.
f5314dd5
DM		 3676 //
3677 // The test we use is if the instruction in the
3678 // delay slot is an add with destination register
3679 // equal to %o0
3680 val = elfcpp::Swap<32, true>::readval(wv + 1);
3681 if ((val & 0x81f80000) == 0x80000000
3682 && ((val >> 25) & 0x1f) == 0x8)
3683 {
3684 if (size == 64)
3685 val |= 0xc0580000;
3686 else
3687 val |= 0xc0000000;
3688
3689 elfcpp::Swap<32, true>::writeval(wv, val);
3690
3691 wv += 1;
3692 this->ignore_gd_add_ = true;
3693 }
abd242a9
DM		 3694 else
3695 {
3696 // Even if the delay slot isn't the TLS_GD_ADD
3697 // instruction, we still have to handle the case
3698 // where it sets up %o0 in some other way.
3699 elfcpp::Swap<32, true>::writeval(wv, val);
3700 wv += 1;
3701 this->reloc_adjust_addr_ = view + 4;
3702 }
f5314dd5
DM		 3703 // call __tls_get_addr --> add %g7, %o0, %o0
3704 elfcpp::Swap<32, true>::writeval(wv, 0x9001c008);
3705 break;
3706 }
3707 break;
3708 }
3709 else if (optimized_type == tls::TLSOPT_NONE)
3710 {
3711 switch (r_type)
3712 {
3713 case elfcpp::R_SPARC_TLS_GD_HI22:
2ea97941 3714 Reloc::hi22(view, value, addend);
f5314dd5
DM		 3715 break;
3716 case elfcpp::R_SPARC_TLS_GD_LO10:
2ea97941 3717 Reloc::lo10(view, value, addend);
f5314dd5
DM		 3718 break;
3719 case elfcpp::R_SPARC_TLS_GD_ADD:
3720 break;
3721 case elfcpp::R_SPARC_TLS_GD_CALL:
3722 {
3723 Symbol_value<size> symval;
2ea97941 3724 elfcpp::Elf_Xword value;
f5314dd5
DM		 3725 Symbol* tsym;
3726
3727 tsym = target->tls_get_addr_sym_;
3728 gold_assert(tsym);
2ea97941
ILT		 3729 value = (target->plt_section()->address() +
3730 tsym->plt_offset());
3731 symval.set_output_value(value);
f5314dd5
DM		 3732 Reloc::wdisp30(view, object, &symval, addend, address);
3733 }
3734 break;
3735 }
3736 break;
3737 }
3738 }
3739 gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
3740 _("unsupported reloc %u"),
3741 r_type);
3742 break;
3743
3744 case elfcpp::R_SPARC_TLS_LDM_HI22:
3745 case elfcpp::R_SPARC_TLS_LDM_LO10:
3746 case elfcpp::R_SPARC_TLS_LDM_ADD:
3747 case elfcpp::R_SPARC_TLS_LDM_CALL:
3748 if (optimized_type == tls::TLSOPT_TO_LE)
3749 {
3750 Insntype* wv = reinterpret_cast<Insntype*>(view);
3751
3752 switch (r_type)
3753 {
3754 case elfcpp::R_SPARC_TLS_LDM_HI22:
3755 case elfcpp::R_SPARC_TLS_LDM_LO10:
3756 case elfcpp::R_SPARC_TLS_LDM_ADD:
3757 elfcpp::Swap<32, true>::writeval(wv, sparc_nop);
3758 break;
3759
3760 case elfcpp::R_SPARC_TLS_LDM_CALL:
3761 elfcpp::Swap<32, true>::writeval(wv, sparc_mov_g0_o0);
3762 break;
3763 }
3764 break;
3765 }
3766 else if (optimized_type == tls::TLSOPT_NONE)
3767 {
3768 // Relocate the field with the offset of the GOT entry for
3769 // the module index.
3770 unsigned int got_offset;
3771
3772 got_offset = target->got_mod_index_entry(NULL, NULL, NULL);
3773 switch (r_type)
3774 {
3775 case elfcpp::R_SPARC_TLS_LDM_HI22:
3776 Reloc::hi22(view, got_offset, addend);
3777 break;
3778 case elfcpp::R_SPARC_TLS_LDM_LO10:
3779 Reloc::lo10(view, got_offset, addend);
3780 break;
3781 case elfcpp::R_SPARC_TLS_LDM_ADD:
3782 break;
3783 case elfcpp::R_SPARC_TLS_LDM_CALL:
3784 {
3785 Symbol_value<size> symval;
2ea97941 3786 elfcpp::Elf_Xword value;
f5314dd5
DM		 3787 Symbol* tsym;
3788
3789 tsym = target->tls_get_addr_sym_;
3790 gold_assert(tsym);
2ea97941
ILT		 3791 value = (target->plt_section()->address() +
3792 tsym->plt_offset());
3793 symval.set_output_value(value);
f5314dd5
DM		 3794 Reloc::wdisp30(view, object, &symval, addend, address);
3795 }
3796 break;
3797 }
3798 break;
3799 }
3800 gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
3801 _("unsupported reloc %u"),
3802 r_type);
3803 break;
3804
3805 // These relocs can appear in debugging sections, in which case
3806 // we won't see the TLS_LDM relocs. The local_dynamic_type
3807 // field tells us this.
3808 case elfcpp::R_SPARC_TLS_LDO_HIX22:
3809 if (optimized_type == tls::TLSOPT_TO_LE)
3810 {
2ea97941
ILT		 3811 value -= tls_segment->memsz();
3812 Reloc::hix22(view, value, addend);
f5314dd5
DM		 3813 }
3814 else
2ea97941 3815 Reloc::ldo_hix22(view, value, addend);
f5314dd5
DM		 3816 break;
3817 case elfcpp::R_SPARC_TLS_LDO_LOX10:
3818 if (optimized_type == tls::TLSOPT_TO_LE)
3819 {
2ea97941
ILT		 3820 value -= tls_segment->memsz();
3821 Reloc::lox10(view, value, addend);
f5314dd5
DM		 3822 }
3823 else
2ea97941 3824 Reloc::ldo_lox10(view, value, addend);
f5314dd5
DM		 3825 break;
3826 case elfcpp::R_SPARC_TLS_LDO_ADD:
3827 if (optimized_type == tls::TLSOPT_TO_LE)
3828 {
3829 Insntype* wv = reinterpret_cast<Insntype*>(view);
3830 Insntype val;
3831
3832 // add %reg1, %reg2, %reg3 --> add %g7, %reg2, %reg3
3833 val = elfcpp::Swap<32, true>::readval(wv);
3834 val = (val & ~0x7c000) | 0x1c000;
3835 elfcpp::Swap<32, true>::writeval(wv, val);
3836 }
3837 break;
3838
3839 // When optimizing IE --> LE, the only relocation that is handled
3840 // differently is R_SPARC_TLS_IE_LD, it is rewritten from
3841 // 'ld{,x} [rs1 + rs2], rd' into 'mov rs2, rd' or simply a NOP is
3842 // rs2 and rd are the same.
3843 case elfcpp::R_SPARC_TLS_IE_LD:
3844 case elfcpp::R_SPARC_TLS_IE_LDX:
3845 if (optimized_type == tls::TLSOPT_TO_LE)
3846 {
3847 Insntype* wv = reinterpret_cast<Insntype*>(view);
3848 Insntype val = elfcpp::Swap<32, true>::readval(wv);
3849 Insntype rs2 = val & 0x1f;
3850 Insntype rd = (val >> 25) & 0x1f;
3851
3852 if (rs2 == rd)
3853 val = sparc_nop;
3854 else
3855 val = sparc_mov | (val & 0x3e00001f);
3856
3857 elfcpp::Swap<32, true>::writeval(wv, val);
3858 }
3859 break;
3860
3861 case elfcpp::R_SPARC_TLS_IE_HI22:
3862 case elfcpp::R_SPARC_TLS_IE_LO10:
3863 if (optimized_type == tls::TLSOPT_TO_LE)
3864 {
2ea97941 3865 value -= tls_segment->memsz();
f5314dd5
DM		 3866 switch (r_type)
3867 {
3868 case elfcpp::R_SPARC_TLS_IE_HI22:
3869 // IE_HI22 --> LE_HIX22
2ea97941 3870 Reloc::hix22(view, value, addend);
f5314dd5
DM		 3871 break;
3872 case elfcpp::R_SPARC_TLS_IE_LO10:
3873 // IE_LO10 --> LE_LOX10
2ea97941 3874 Reloc::lox10(view, value, addend);
f5314dd5
DM		 3875 break;
3876 }
3877 break;
3878 }
3879 else if (optimized_type == tls::TLSOPT_NONE)
3880 {
3881 // Relocate the field with the offset of the GOT entry for
3882 // the tp-relative offset of the symbol.
3883 if (gsym != NULL)
3884 {
3885 gold_assert(gsym->has_got_offset(GOT_TYPE_TLS_OFFSET));
2ea97941 3886 value = gsym->got_offset(GOT_TYPE_TLS_OFFSET);
f5314dd5
DM		 3887 }
3888 else
3889 {
3890 unsigned int r_sym = elfcpp::elf_r_sym<size>(rela.get_r_info());
3891 gold_assert(object->local_has_got_offset(r_sym,
3892 GOT_TYPE_TLS_OFFSET));
2ea97941
ILT		 3893 value = object->local_got_offset(r_sym,
3894 GOT_TYPE_TLS_OFFSET);
f5314dd5
DM		 3895 }
3896 switch (r_type)
3897 {
3898 case elfcpp::R_SPARC_TLS_IE_HI22:
2ea97941 3899 Reloc::hi22(view, value, addend);
f5314dd5
DM		 3900 break;
3901 case elfcpp::R_SPARC_TLS_IE_LO10:
2ea97941 3902 Reloc::lo10(view, value, addend);
f5314dd5
DM		 3903 break;
3904 }
3905 break;
3906 }
3907 gold_error_at_location(relinfo, relnum, rela.get_r_offset(),
3908 _("unsupported reloc %u"),
3909 r_type);
3910 break;
3911
9efe6174
ILT		 3912 case elfcpp::R_SPARC_TLS_IE_ADD:
3913 // This seems to be mainly so that we can find the addition
3914 // instruction if there is one. There doesn't seem to be any
3915 // actual relocation to apply.
3916 break;
3917
f5314dd5
DM		 3918 case elfcpp::R_SPARC_TLS_LE_HIX22:
3919 // If we're creating a shared library, a dynamic relocation will
3920 // have been created for this location, so do not apply it now.
3921 if (!parameters->options().shared())
3922 {
2ea97941
ILT		 3923 value -= tls_segment->memsz();
3924 Reloc::hix22(view, value, addend);
f5314dd5
DM		 3925 }
3926 break;
3927
3928 case elfcpp::R_SPARC_TLS_LE_LOX10:
3929 // If we're creating a shared library, a dynamic relocation will
3930 // have been created for this location, so do not apply it now.
3931 if (!parameters->options().shared())
3932 {
2ea97941
ILT		 3933 value -= tls_segment->memsz();
3934 Reloc::lox10(view, value, addend);
f5314dd5
DM		 3935 }
3936 break;
3937 }
3938}
3939
3940// Relocate section data.
3941
3942template<int size, bool big_endian>
3943void
3944Target_sparc<size, big_endian>::relocate_section(
3945 const Relocate_info<size, big_endian>* relinfo,
3946 unsigned int sh_type,
3947 const unsigned char* prelocs,
3948 size_t reloc_count,
3949 Output_section* output_section,
3950 bool needs_special_offset_handling,
3951 unsigned char* view,
3952 typename elfcpp::Elf_types<size>::Elf_Addr address,
364c7fa5
ILT		 3953 section_size_type view_size,
3954 const Reloc_symbol_changes* reloc_symbol_changes)
f5314dd5
DM		 3955{
3956 typedef Target_sparc<size, big_endian> Sparc;
3957 typedef typename Target_sparc<size, big_endian>::Relocate Sparc_relocate;
3958
3959 gold_assert(sh_type == elfcpp::SHT_RELA);
3960
3961 gold::relocate_section<size, big_endian, Sparc, elfcpp::SHT_RELA,
3962 Sparc_relocate>(
3963 relinfo,
3964 this,
3965 prelocs,
3966 reloc_count,
3967 output_section,
3968 needs_special_offset_handling,
3969 view,
3970 address,
364c7fa5
ILT		 3971 view_size,
3972 reloc_symbol_changes);
f5314dd5
DM		 3973}
3974
3975// Return the size of a relocation while scanning during a relocatable
3976// link.
3977
3978template<int size, bool big_endian>
3979unsigned int
3980Target_sparc<size, big_endian>::Relocatable_size_for_reloc::get_size_for_reloc(
3981 unsigned int,
3982 Relobj*)
3983{
3984 // We are always SHT_RELA, so we should never get here.
3985 gold_unreachable();
3986 return 0;
3987}
3988
3989// Scan the relocs during a relocatable link.
3990
3991template<int size, bool big_endian>
3992void
3993Target_sparc<size, big_endian>::scan_relocatable_relocs(
f5314dd5
DM		 3994 Symbol_table* symtab,
3995 Layout* layout,
6fa2a40b 3996 Sized_relobj_file<size, big_endian>* object,
f5314dd5
DM		 3997 unsigned int data_shndx,
3998 unsigned int sh_type,
3999 const unsigned char* prelocs,
4000 size_t reloc_count,
4001 Output_section* output_section,
4002 bool needs_special_offset_handling,
4003 size_t local_symbol_count,
4004 const unsigned char* plocal_symbols,
4005 Relocatable_relocs* rr)
4006{
4007 gold_assert(sh_type == elfcpp::SHT_RELA);
4008
4009 typedef gold::Default_scan_relocatable_relocs<elfcpp::SHT_RELA,
4010 Relocatable_size_for_reloc> Scan_relocatable_relocs;
4011
4012 gold::scan_relocatable_relocs<size, big_endian, elfcpp::SHT_RELA,
4013 Scan_relocatable_relocs>(
f5314dd5
DM		 4014 symtab,
4015 layout,
4016 object,
4017 data_shndx,
4018 prelocs,
4019 reloc_count,
4020 output_section,
4021 needs_special_offset_handling,
4022 local_symbol_count,
4023 plocal_symbols,
4024 rr);
4025}
4026
4027// Relocate a section during a relocatable link.
4028
4029template<int size, bool big_endian>
4030void
4031Target_sparc<size, big_endian>::relocate_for_relocatable(
4032 const Relocate_info<size, big_endian>* relinfo,
4033 unsigned int sh_type,
4034 const unsigned char* prelocs,
4035 size_t reloc_count,
4036 Output_section* output_section,
4037 off_t offset_in_output_section,
4038 const Relocatable_relocs* rr,
4039 unsigned char* view,
4040 typename elfcpp::Elf_types<size>::Elf_Addr view_address,
4041 section_size_type view_size,
4042 unsigned char* reloc_view,
4043 section_size_type reloc_view_size)
4044{
4045 gold_assert(sh_type == elfcpp::SHT_RELA);
4046
4047 gold::relocate_for_relocatable<size, big_endian, elfcpp::SHT_RELA>(
4048 relinfo,
4049 prelocs,
4050 reloc_count,
4051 output_section,
4052 offset_in_output_section,
4053 rr,
4054 view,
4055 view_address,
4056 view_size,
4057 reloc_view,
4058 reloc_view_size);
4059}
4060
4061// Return the value to use for a dynamic which requires special
4062// treatment. This is how we support equality comparisons of function
4063// pointers across shared library boundaries, as described in the
4064// processor specific ABI supplement.
4065
4066template<int size, bool big_endian>
4067uint64_t
4068Target_sparc<size, big_endian>::do_dynsym_value(const Symbol* gsym) const
4069{
4070 gold_assert(gsym->is_from_dynobj() && gsym->has_plt_offset());
4071 return this->plt_section()->address() + gsym->plt_offset();
4072}
4073
4074// The selector for sparc object files.
4075
4076template<int size, bool big_endian>
4077class Target_selector_sparc : public Target_selector
4078{
4079public:
4080 Target_selector_sparc()
4081 : Target_selector(elfcpp::EM_NONE, size, big_endian,
03ef7571
ILT		 4082 (size == 64 ? "elf64-sparc" : "elf32-sparc"),
4083 (size == 64 ? "elf64_sparc" : "elf32_sparc"))
f5314dd5
DM		 4084 { }
4085
2ea97941 4086 Target* do_recognize(int machine, int, int)
f5314dd5
DM		 4087 {
4088 switch (size)
4089 {
4090 case 64:
2ea97941 4091 if (machine != elfcpp::EM_SPARCV9)
f5314dd5
DM		 4092 return NULL;
4093 break;
4094
4095 case 32:
2ea97941
ILT		 4096 if (machine != elfcpp::EM_SPARC
4097 && machine != elfcpp::EM_SPARC32PLUS)
f5314dd5
DM		 4098 return NULL;
4099 break;
4100
4101 default:
4102 return NULL;
4103 }
4104
7f055c20 4105 return this->instantiate_target();
f5314dd5
DM		 4106 }
4107
4108 Target* do_instantiate_target()
7f055c20 4109 { return new Target_sparc<size, big_endian>(); }
f5314dd5
DM		 4110};
4111
4112Target_selector_sparc<32, true> target_selector_sparc32;
4113Target_selector_sparc<64, true> target_selector_sparc64;
4114
4115} // End anonymous namespace.
GDB Binutils - Deliverables
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